From: Len Brown Date: Fri, 9 Jan 2009 05:13:17 +0000 (-0500) Subject: ACPICA: create acpica/ directory X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=95b482a8d31116f3f5c2a5089569393234d06385;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git ACPICA: create acpica/ directory also, delete sleep/ and delete ACPI_CFLAGS from Makefile Signed-off-by: Len Brown --- diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile index 3c0c93300f12..5d23c13ac7d4 100644 --- a/drivers/acpi/Makefile +++ b/drivers/acpi/Makefile @@ -2,15 +2,8 @@ # Makefile for the Linux ACPI interpreter # -export ACPI_CFLAGS - -ACPI_CFLAGS := -Os - -ifdef CONFIG_ACPI_DEBUG - ACPI_CFLAGS += -DACPI_DEBUG_OUTPUT -endif - -EXTRA_CFLAGS += $(ACPI_CFLAGS) +ccflags-y := -Os +ccflags-$(CONFIG_ACPI_DEBUG) += -DACPI_DEBUG_OUTPUT # # ACPI Boot-Time Table Parsing @@ -22,9 +15,13 @@ obj-$(CONFIG_X86) += blacklist.o # ACPI Core Subsystem (Interpreter) # obj-y += osl.o utils.o reboot.o\ - dispatcher/ events/ executer/ hardware/ \ - namespace/ parser/ resources/ tables/ \ - utilities/ + acpica/ + +# sleep related files +obj-y += wakeup.o +obj-y += main.o +obj-$(CONFIG_ACPI_SLEEP) += proc.o + # # ACPI Bus and Device Drivers @@ -35,7 +32,6 @@ ifdef CONFIG_CPU_FREQ processor-objs += processor_perflib.o endif -obj-y += sleep/ obj-y += bus.o glue.o obj-y += scan.o # Keep EC driver first. Initialization of others depend on it. diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile new file mode 100644 index 000000000000..3f23298ee3fd --- /dev/null +++ b/drivers/acpi/acpica/Makefile @@ -0,0 +1,44 @@ +# +# Makefile for ACPICA Core interpreter +# + +ccflags-y := -Os +ccflags-$(CONFIG_ACPI_DEBUG) += -DACPI_DEBUG_OUTPUT + +obj-y := dsfield.o dsmthdat.o dsopcode.o dswexec.o dswscope.o \ + dsmethod.o dsobject.o dsutils.o dswload.o dswstate.o \ + dsinit.o + +obj-y += evevent.o evregion.o evsci.o evxfevnt.o \ + evmisc.o evrgnini.o evxface.o evxfregn.o \ + evgpe.o evgpeblk.o + +obj-y += exconfig.o exfield.o exnames.o exoparg6.o exresolv.o exstorob.o\ + exconvrt.o exfldio.o exoparg1.o exprep.o exresop.o exsystem.o\ + excreate.o exmisc.o exoparg2.o exregion.o exstore.o exutils.o \ + exdump.o exmutex.o exoparg3.o exresnte.o exstoren.o + +obj-y += hwacpi.o hwgpe.o hwregs.o hwsleep.o hwxface.o + +obj-$(ACPI_FUTURE_USAGE) += hwtimer.o + +obj-y += nsaccess.o nsload.o nssearch.o nsxfeval.o \ + nsalloc.o nseval.o nsnames.o nsutils.o nsxfname.o \ + nsdump.o nsinit.o nsobject.o nswalk.o nsxfobj.o \ + nsparse.o nspredef.o + +obj-$(ACPI_FUTURE_USAGE) += nsdumpdv.o + +obj-y += psargs.o psparse.o psloop.o pstree.o pswalk.o \ + psopcode.o psscope.o psutils.o psxface.o + +obj-y += rsaddr.o rscreate.o rsinfo.o rsio.o rslist.o rsmisc.o rsxface.o \ + rscalc.o rsirq.o rsmemory.o rsutils.o + +obj-$(ACPI_FUTURE_USAGE) += rsdump.o + +obj-y += tbxface.o tbinstal.o tbutils.o tbfind.o tbfadt.o tbxfroot.o + +obj-y += utalloc.o utdebug.o uteval.o utinit.o utmisc.o utxface.o \ + utcopy.o utdelete.o utglobal.o utmath.o utobject.o \ + utstate.o utmutex.o utobject.o utresrc.o diff --git a/drivers/acpi/acpica/dsfield.c b/drivers/acpi/acpica/dsfield.c new file mode 100644 index 000000000000..5fbc24075b44 --- /dev/null +++ b/drivers/acpi/acpica/dsfield.c @@ -0,0 +1,650 @@ +/****************************************************************************** + * + * Module Name: dsfield - Dispatcher field routines + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_DISPATCHER +ACPI_MODULE_NAME("dsfield") + +/* Local prototypes */ +static acpi_status +acpi_ds_get_field_names(struct acpi_create_field_info *info, + struct acpi_walk_state *walk_state, + union acpi_parse_object *arg); + +/******************************************************************************* + * + * FUNCTION: acpi_ds_create_buffer_field + * + * PARAMETERS: Op - Current parse op (create_xXField) + * walk_state - Current state + * + * RETURN: Status + * + * DESCRIPTION: Execute the create_field operators: + * create_bit_field_op, + * create_byte_field_op, + * create_word_field_op, + * create_dword_field_op, + * create_qword_field_op, + * create_field_op (all of which define a field in a buffer) + * + ******************************************************************************/ + +acpi_status +acpi_ds_create_buffer_field(union acpi_parse_object *op, + struct acpi_walk_state *walk_state) +{ + union acpi_parse_object *arg; + struct acpi_namespace_node *node; + acpi_status status; + union acpi_operand_object *obj_desc; + union acpi_operand_object *second_desc = NULL; + u32 flags; + + ACPI_FUNCTION_TRACE(ds_create_buffer_field); + + /* + * Get the name_string argument (name of the new buffer_field) + */ + if (op->common.aml_opcode == AML_CREATE_FIELD_OP) { + + /* For create_field, name is the 4th argument */ + + arg = acpi_ps_get_arg(op, 3); + } else { + /* For all other create_xXXField operators, name is the 3rd argument */ + + arg = acpi_ps_get_arg(op, 2); + } + + if (!arg) { + return_ACPI_STATUS(AE_AML_NO_OPERAND); + } + + if (walk_state->deferred_node) { + node = walk_state->deferred_node; + status = AE_OK; + } else { + /* Execute flag should always be set when this function is entered */ + + if (!(walk_state->parse_flags & ACPI_PARSE_EXECUTE)) { + return_ACPI_STATUS(AE_AML_INTERNAL); + } + + /* Creating new namespace node, should not already exist */ + + flags = ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE | + ACPI_NS_ERROR_IF_FOUND; + + /* Mark node temporary if we are executing a method */ + + if (walk_state->method_node) { + flags |= ACPI_NS_TEMPORARY; + } + + /* Enter the name_string into the namespace */ + + status = + acpi_ns_lookup(walk_state->scope_info, + arg->common.value.string, ACPI_TYPE_ANY, + ACPI_IMODE_LOAD_PASS1, flags, walk_state, + &node); + if (ACPI_FAILURE(status)) { + ACPI_ERROR_NAMESPACE(arg->common.value.string, status); + return_ACPI_STATUS(status); + } + } + + /* + * We could put the returned object (Node) on the object stack for later, + * but for now, we will put it in the "op" object that the parser uses, + * so we can get it again at the end of this scope. + */ + op->common.node = node; + + /* + * If there is no object attached to the node, this node was just created + * and we need to create the field object. Otherwise, this was a lookup + * of an existing node and we don't want to create the field object again. + */ + obj_desc = acpi_ns_get_attached_object(node); + if (obj_desc) { + return_ACPI_STATUS(AE_OK); + } + + /* + * The Field definition is not fully parsed at this time. + * (We must save the address of the AML for the buffer and index operands) + */ + + /* Create the buffer field object */ + + obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER_FIELD); + if (!obj_desc) { + status = AE_NO_MEMORY; + goto cleanup; + } + + /* + * Remember location in AML stream of the field unit opcode and operands -- + * since the buffer and index operands must be evaluated. + */ + second_desc = obj_desc->common.next_object; + second_desc->extra.aml_start = op->named.data; + second_desc->extra.aml_length = op->named.length; + obj_desc->buffer_field.node = node; + + /* Attach constructed field descriptors to parent node */ + + status = acpi_ns_attach_object(node, obj_desc, ACPI_TYPE_BUFFER_FIELD); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + cleanup: + + /* Remove local reference to the object */ + + acpi_ut_remove_reference(obj_desc); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_get_field_names + * + * PARAMETERS: Info - create_field info structure + * ` walk_state - Current method state + * Arg - First parser arg for the field name list + * + * RETURN: Status + * + * DESCRIPTION: Process all named fields in a field declaration. Names are + * entered into the namespace. + * + ******************************************************************************/ + +static acpi_status +acpi_ds_get_field_names(struct acpi_create_field_info *info, + struct acpi_walk_state *walk_state, + union acpi_parse_object *arg) +{ + acpi_status status; + acpi_integer position; + + ACPI_FUNCTION_TRACE_PTR(ds_get_field_names, info); + + /* First field starts at bit zero */ + + info->field_bit_position = 0; + + /* Process all elements in the field list (of parse nodes) */ + + while (arg) { + /* + * Three types of field elements are handled: + * 1) Offset - specifies a bit offset + * 2) access_as - changes the access mode + * 3) Name - Enters a new named field into the namespace + */ + switch (arg->common.aml_opcode) { + case AML_INT_RESERVEDFIELD_OP: + + position = (acpi_integer) info->field_bit_position + + (acpi_integer) arg->common.value.size; + + if (position > ACPI_UINT32_MAX) { + ACPI_ERROR((AE_INFO, + "Bit offset within field too large (> 0xFFFFFFFF)")); + return_ACPI_STATUS(AE_SUPPORT); + } + + info->field_bit_position = (u32) position; + break; + + case AML_INT_ACCESSFIELD_OP: + + /* + * Get a new access_type and access_attribute -- to be used for all + * field units that follow, until field end or another access_as + * keyword. + * + * In field_flags, preserve the flag bits other than the + * ACCESS_TYPE bits + */ + info->field_flags = (u8) + ((info-> + field_flags & ~(AML_FIELD_ACCESS_TYPE_MASK)) | + ((u8) ((u32) arg->common.value.integer >> 8))); + + info->attribute = (u8) (arg->common.value.integer); + break; + + case AML_INT_NAMEDFIELD_OP: + + /* Lookup the name, it should already exist */ + + status = acpi_ns_lookup(walk_state->scope_info, + (char *)&arg->named.name, + info->field_type, + ACPI_IMODE_EXECUTE, + ACPI_NS_DONT_OPEN_SCOPE, + walk_state, &info->field_node); + if (ACPI_FAILURE(status)) { + ACPI_ERROR_NAMESPACE((char *)&arg->named.name, + status); + return_ACPI_STATUS(status); + } else { + arg->common.node = info->field_node; + info->field_bit_length = arg->common.value.size; + + /* + * If there is no object attached to the node, this node was + * just created and we need to create the field object. + * Otherwise, this was a lookup of an existing node and we + * don't want to create the field object again. + */ + if (!acpi_ns_get_attached_object + (info->field_node)) { + status = acpi_ex_prep_field_value(info); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + } + + /* Keep track of bit position for the next field */ + + position = (acpi_integer) info->field_bit_position + + (acpi_integer) arg->common.value.size; + + if (position > ACPI_UINT32_MAX) { + ACPI_ERROR((AE_INFO, + "Field [%4.4s] bit offset too large (> 0xFFFFFFFF)", + ACPI_CAST_PTR(char, + &info->field_node-> + name))); + return_ACPI_STATUS(AE_SUPPORT); + } + + info->field_bit_position += info->field_bit_length; + break; + + default: + + ACPI_ERROR((AE_INFO, + "Invalid opcode in field list: %X", + arg->common.aml_opcode)); + return_ACPI_STATUS(AE_AML_BAD_OPCODE); + } + + arg = arg->common.next; + } + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_create_field + * + * PARAMETERS: Op - Op containing the Field definition and args + * region_node - Object for the containing Operation Region + * ` walk_state - Current method state + * + * RETURN: Status + * + * DESCRIPTION: Create a new field in the specified operation region + * + ******************************************************************************/ + +acpi_status +acpi_ds_create_field(union acpi_parse_object *op, + struct acpi_namespace_node *region_node, + struct acpi_walk_state *walk_state) +{ + acpi_status status; + union acpi_parse_object *arg; + struct acpi_create_field_info info; + + ACPI_FUNCTION_TRACE_PTR(ds_create_field, op); + + /* First arg is the name of the parent op_region (must already exist) */ + + arg = op->common.value.arg; + if (!region_node) { + status = + acpi_ns_lookup(walk_state->scope_info, + arg->common.value.name, ACPI_TYPE_REGION, + ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, + walk_state, ®ion_node); + if (ACPI_FAILURE(status)) { + ACPI_ERROR_NAMESPACE(arg->common.value.name, status); + return_ACPI_STATUS(status); + } + } + + /* Second arg is the field flags */ + + arg = arg->common.next; + info.field_flags = (u8) arg->common.value.integer; + info.attribute = 0; + + /* Each remaining arg is a Named Field */ + + info.field_type = ACPI_TYPE_LOCAL_REGION_FIELD; + info.region_node = region_node; + + status = acpi_ds_get_field_names(&info, walk_state, arg->common.next); + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_init_field_objects + * + * PARAMETERS: Op - Op containing the Field definition and args + * ` walk_state - Current method state + * + * RETURN: Status + * + * DESCRIPTION: For each "Field Unit" name in the argument list that is + * part of the field declaration, enter the name into the + * namespace. + * + ******************************************************************************/ + +acpi_status +acpi_ds_init_field_objects(union acpi_parse_object *op, + struct acpi_walk_state *walk_state) +{ + acpi_status status; + union acpi_parse_object *arg = NULL; + struct acpi_namespace_node *node; + u8 type = 0; + u32 flags; + + ACPI_FUNCTION_TRACE_PTR(ds_init_field_objects, op); + + /* Execute flag should always be set when this function is entered */ + + if (!(walk_state->parse_flags & ACPI_PARSE_EXECUTE)) { + if (walk_state->parse_flags & ACPI_PARSE_DEFERRED_OP) { + + /* bank_field Op is deferred, just return OK */ + + return_ACPI_STATUS(AE_OK); + } + + return_ACPI_STATUS(AE_AML_INTERNAL); + } + + /* + * Get the field_list argument for this opcode. This is the start of the + * list of field elements. + */ + switch (walk_state->opcode) { + case AML_FIELD_OP: + arg = acpi_ps_get_arg(op, 2); + type = ACPI_TYPE_LOCAL_REGION_FIELD; + break; + + case AML_BANK_FIELD_OP: + arg = acpi_ps_get_arg(op, 4); + type = ACPI_TYPE_LOCAL_BANK_FIELD; + break; + + case AML_INDEX_FIELD_OP: + arg = acpi_ps_get_arg(op, 3); + type = ACPI_TYPE_LOCAL_INDEX_FIELD; + break; + + default: + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* Creating new namespace node(s), should not already exist */ + + flags = ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE | + ACPI_NS_ERROR_IF_FOUND; + + /* Mark node(s) temporary if we are executing a method */ + + if (walk_state->method_node) { + flags |= ACPI_NS_TEMPORARY; + } + + /* + * Walk the list of entries in the field_list + * Note: field_list can be of zero length. In this case, Arg will be NULL. + */ + while (arg) { + /* + * Ignore OFFSET and ACCESSAS terms here; we are only interested in the + * field names in order to enter them into the namespace. + */ + if (arg->common.aml_opcode == AML_INT_NAMEDFIELD_OP) { + status = acpi_ns_lookup(walk_state->scope_info, + (char *)&arg->named.name, type, + ACPI_IMODE_LOAD_PASS1, flags, + walk_state, &node); + if (ACPI_FAILURE(status)) { + ACPI_ERROR_NAMESPACE((char *)&arg->named.name, + status); + if (status != AE_ALREADY_EXISTS) { + return_ACPI_STATUS(status); + } + + /* Name already exists, just ignore this error */ + + status = AE_OK; + } + + arg->common.node = node; + } + + /* Get the next field element in the list */ + + arg = arg->common.next; + } + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_create_bank_field + * + * PARAMETERS: Op - Op containing the Field definition and args + * region_node - Object for the containing Operation Region + * walk_state - Current method state + * + * RETURN: Status + * + * DESCRIPTION: Create a new bank field in the specified operation region + * + ******************************************************************************/ + +acpi_status +acpi_ds_create_bank_field(union acpi_parse_object *op, + struct acpi_namespace_node *region_node, + struct acpi_walk_state *walk_state) +{ + acpi_status status; + union acpi_parse_object *arg; + struct acpi_create_field_info info; + + ACPI_FUNCTION_TRACE_PTR(ds_create_bank_field, op); + + /* First arg is the name of the parent op_region (must already exist) */ + + arg = op->common.value.arg; + if (!region_node) { + status = + acpi_ns_lookup(walk_state->scope_info, + arg->common.value.name, ACPI_TYPE_REGION, + ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, + walk_state, ®ion_node); + if (ACPI_FAILURE(status)) { + ACPI_ERROR_NAMESPACE(arg->common.value.name, status); + return_ACPI_STATUS(status); + } + } + + /* Second arg is the Bank Register (Field) (must already exist) */ + + arg = arg->common.next; + status = + acpi_ns_lookup(walk_state->scope_info, arg->common.value.string, + ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE, + ACPI_NS_SEARCH_PARENT, walk_state, + &info.register_node); + if (ACPI_FAILURE(status)) { + ACPI_ERROR_NAMESPACE(arg->common.value.string, status); + return_ACPI_STATUS(status); + } + + /* + * Third arg is the bank_value + * This arg is a term_arg, not a constant + * It will be evaluated later, by acpi_ds_eval_bank_field_operands + */ + arg = arg->common.next; + + /* Fourth arg is the field flags */ + + arg = arg->common.next; + info.field_flags = (u8) arg->common.value.integer; + + /* Each remaining arg is a Named Field */ + + info.field_type = ACPI_TYPE_LOCAL_BANK_FIELD; + info.region_node = region_node; + + /* + * Use Info.data_register_node to store bank_field Op + * It's safe because data_register_node will never be used when create bank field + * We store aml_start and aml_length in the bank_field Op for late evaluation + * Used in acpi_ex_prep_field_value(Info) + * + * TBD: Or, should we add a field in struct acpi_create_field_info, like "void *ParentOp"? + */ + info.data_register_node = (struct acpi_namespace_node *)op; + + status = acpi_ds_get_field_names(&info, walk_state, arg->common.next); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_create_index_field + * + * PARAMETERS: Op - Op containing the Field definition and args + * region_node - Object for the containing Operation Region + * ` walk_state - Current method state + * + * RETURN: Status + * + * DESCRIPTION: Create a new index field in the specified operation region + * + ******************************************************************************/ + +acpi_status +acpi_ds_create_index_field(union acpi_parse_object *op, + struct acpi_namespace_node *region_node, + struct acpi_walk_state *walk_state) +{ + acpi_status status; + union acpi_parse_object *arg; + struct acpi_create_field_info info; + + ACPI_FUNCTION_TRACE_PTR(ds_create_index_field, op); + + /* First arg is the name of the Index register (must already exist) */ + + arg = op->common.value.arg; + status = + acpi_ns_lookup(walk_state->scope_info, arg->common.value.string, + ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE, + ACPI_NS_SEARCH_PARENT, walk_state, + &info.register_node); + if (ACPI_FAILURE(status)) { + ACPI_ERROR_NAMESPACE(arg->common.value.string, status); + return_ACPI_STATUS(status); + } + + /* Second arg is the data register (must already exist) */ + + arg = arg->common.next; + status = + acpi_ns_lookup(walk_state->scope_info, arg->common.value.string, + ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE, + ACPI_NS_SEARCH_PARENT, walk_state, + &info.data_register_node); + if (ACPI_FAILURE(status)) { + ACPI_ERROR_NAMESPACE(arg->common.value.string, status); + return_ACPI_STATUS(status); + } + + /* Next arg is the field flags */ + + arg = arg->common.next; + info.field_flags = (u8) arg->common.value.integer; + + /* Each remaining arg is a Named Field */ + + info.field_type = ACPI_TYPE_LOCAL_INDEX_FIELD; + info.region_node = region_node; + + status = acpi_ds_get_field_names(&info, walk_state, arg->common.next); + + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/dsinit.c b/drivers/acpi/acpica/dsinit.c new file mode 100644 index 000000000000..4f1cdd823fcc --- /dev/null +++ b/drivers/acpi/acpica/dsinit.c @@ -0,0 +1,205 @@ +/****************************************************************************** + * + * Module Name: dsinit - Object initialization namespace walk + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_DISPATCHER +ACPI_MODULE_NAME("dsinit") + +/* Local prototypes */ +static acpi_status +acpi_ds_init_one_object(acpi_handle obj_handle, + u32 level, void *context, void **return_value); + +/******************************************************************************* + * + * FUNCTION: acpi_ds_init_one_object + * + * PARAMETERS: obj_handle - Node for the object + * Level - Current nesting level + * Context - Points to a init info struct + * return_value - Not used + * + * RETURN: Status + * + * DESCRIPTION: Callback from acpi_walk_namespace. Invoked for every object + * within the namespace. + * + * Currently, the only objects that require initialization are: + * 1) Methods + * 2) Operation Regions + * + ******************************************************************************/ + +static acpi_status +acpi_ds_init_one_object(acpi_handle obj_handle, + u32 level, void *context, void **return_value) +{ + struct acpi_init_walk_info *info = + (struct acpi_init_walk_info *)context; + struct acpi_namespace_node *node = + (struct acpi_namespace_node *)obj_handle; + acpi_object_type type; + acpi_status status; + + ACPI_FUNCTION_ENTRY(); + + /* + * We are only interested in NS nodes owned by the table that + * was just loaded + */ + if (node->owner_id != info->owner_id) { + return (AE_OK); + } + + info->object_count++; + + /* And even then, we are only interested in a few object types */ + + type = acpi_ns_get_type(obj_handle); + + switch (type) { + case ACPI_TYPE_REGION: + + status = acpi_ds_initialize_region(obj_handle); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "During Region initialization %p [%4.4s]", + obj_handle, + acpi_ut_get_node_name(obj_handle))); + } + + info->op_region_count++; + break; + + case ACPI_TYPE_METHOD: + + info->method_count++; + break; + + case ACPI_TYPE_DEVICE: + + info->device_count++; + break; + + default: + break; + } + + /* + * We ignore errors from above, and always return OK, since + * we don't want to abort the walk on a single error. + */ + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_initialize_objects + * + * PARAMETERS: table_desc - Descriptor for parent ACPI table + * start_node - Root of subtree to be initialized. + * + * RETURN: Status + * + * DESCRIPTION: Walk the namespace starting at "StartNode" and perform any + * necessary initialization on the objects found therein + * + ******************************************************************************/ + +acpi_status +acpi_ds_initialize_objects(u32 table_index, + struct acpi_namespace_node * start_node) +{ + acpi_status status; + struct acpi_init_walk_info info; + struct acpi_table_header *table; + acpi_owner_id owner_id; + + ACPI_FUNCTION_TRACE(ds_initialize_objects); + + status = acpi_tb_get_owner_id(table_index, &owner_id); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "**** Starting initialization of namespace objects ****\n")); + ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "Parsing all Control Methods:")); + + info.method_count = 0; + info.op_region_count = 0; + info.object_count = 0; + info.device_count = 0; + info.table_index = table_index; + info.owner_id = owner_id; + + /* Walk entire namespace from the supplied root */ + + status = acpi_walk_namespace(ACPI_TYPE_ANY, start_node, ACPI_UINT32_MAX, + acpi_ds_init_one_object, &info, NULL); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, "During WalkNamespace")); + } + + status = acpi_get_table_by_index(table_index, &table); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, + "\nTable [%4.4s](id %4.4X) - %hd Objects with %hd Devices %hd Methods %hd Regions\n", + table->signature, owner_id, info.object_count, + info.device_count, info.method_count, + info.op_region_count)); + + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "%hd Methods, %hd Regions\n", info.method_count, + info.op_region_count)); + + return_ACPI_STATUS(AE_OK); +} diff --git a/drivers/acpi/acpica/dsmethod.c b/drivers/acpi/acpica/dsmethod.c new file mode 100644 index 000000000000..333c8560d9f8 --- /dev/null +++ b/drivers/acpi/acpica/dsmethod.c @@ -0,0 +1,629 @@ +/****************************************************************************** + * + * Module Name: dsmethod - Parser/Interpreter interface - control method parsing + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include +#include +#ifdef ACPI_DISASSEMBLER +#include +#endif + +#define _COMPONENT ACPI_DISPATCHER +ACPI_MODULE_NAME("dsmethod") + +/* Local prototypes */ +static acpi_status +acpi_ds_create_method_mutex(union acpi_operand_object *method_desc); + +/******************************************************************************* + * + * FUNCTION: acpi_ds_method_error + * + * PARAMETERS: Status - Execution status + * walk_state - Current state + * + * RETURN: Status + * + * DESCRIPTION: Called on method error. Invoke the global exception handler if + * present, dump the method data if the disassembler is configured + * + * Note: Allows the exception handler to change the status code + * + ******************************************************************************/ + +acpi_status +acpi_ds_method_error(acpi_status status, struct acpi_walk_state *walk_state) +{ + ACPI_FUNCTION_ENTRY(); + + /* Ignore AE_OK and control exception codes */ + + if (ACPI_SUCCESS(status) || (status & AE_CODE_CONTROL)) { + return (status); + } + + /* Invoke the global exception handler */ + + if (acpi_gbl_exception_handler) { + + /* Exit the interpreter, allow handler to execute methods */ + + acpi_ex_exit_interpreter(); + + /* + * Handler can map the exception code to anything it wants, including + * AE_OK, in which case the executing method will not be aborted. + */ + status = acpi_gbl_exception_handler(status, + walk_state->method_node ? + walk_state->method_node-> + name.integer : 0, + walk_state->opcode, + walk_state->aml_offset, + NULL); + acpi_ex_enter_interpreter(); + } + + acpi_ds_clear_implicit_return(walk_state); + +#ifdef ACPI_DISASSEMBLER + if (ACPI_FAILURE(status)) { + + /* Display method locals/args if disassembler is present */ + + acpi_dm_dump_method_info(status, walk_state, walk_state->op); + } +#endif + + return (status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_create_method_mutex + * + * PARAMETERS: obj_desc - The method object + * + * RETURN: Status + * + * DESCRIPTION: Create a mutex object for a serialized control method + * + ******************************************************************************/ + +static acpi_status +acpi_ds_create_method_mutex(union acpi_operand_object *method_desc) +{ + union acpi_operand_object *mutex_desc; + acpi_status status; + + ACPI_FUNCTION_TRACE(ds_create_method_mutex); + + /* Create the new mutex object */ + + mutex_desc = acpi_ut_create_internal_object(ACPI_TYPE_MUTEX); + if (!mutex_desc) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* Create the actual OS Mutex */ + + status = acpi_os_create_mutex(&mutex_desc->mutex.os_mutex); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + mutex_desc->mutex.sync_level = method_desc->method.sync_level; + method_desc->method.mutex = mutex_desc; + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_begin_method_execution + * + * PARAMETERS: method_node - Node of the method + * obj_desc - The method object + * walk_state - current state, NULL if not yet executing + * a method. + * + * RETURN: Status + * + * DESCRIPTION: Prepare a method for execution. Parses the method if necessary, + * increments the thread count, and waits at the method semaphore + * for clearance to execute. + * + ******************************************************************************/ + +acpi_status +acpi_ds_begin_method_execution(struct acpi_namespace_node *method_node, + union acpi_operand_object *obj_desc, + struct acpi_walk_state *walk_state) +{ + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE_PTR(ds_begin_method_execution, method_node); + + if (!method_node) { + return_ACPI_STATUS(AE_NULL_ENTRY); + } + + /* Prevent wraparound of thread count */ + + if (obj_desc->method.thread_count == ACPI_UINT8_MAX) { + ACPI_ERROR((AE_INFO, + "Method reached maximum reentrancy limit (255)")); + return_ACPI_STATUS(AE_AML_METHOD_LIMIT); + } + + /* + * If this method is serialized, we need to acquire the method mutex. + */ + if (obj_desc->method.method_flags & AML_METHOD_SERIALIZED) { + /* + * Create a mutex for the method if it is defined to be Serialized + * and a mutex has not already been created. We defer the mutex creation + * until a method is actually executed, to minimize the object count + */ + if (!obj_desc->method.mutex) { + status = acpi_ds_create_method_mutex(obj_desc); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + + /* + * The current_sync_level (per-thread) must be less than or equal to + * the sync level of the method. This mechanism provides some + * deadlock prevention + * + * Top-level method invocation has no walk state at this point + */ + if (walk_state && + (walk_state->thread->current_sync_level > + obj_desc->method.mutex->mutex.sync_level)) { + ACPI_ERROR((AE_INFO, + "Cannot acquire Mutex for method [%4.4s], current SyncLevel is too large (%d)", + acpi_ut_get_node_name(method_node), + walk_state->thread->current_sync_level)); + + return_ACPI_STATUS(AE_AML_MUTEX_ORDER); + } + + /* + * Obtain the method mutex if necessary. Do not acquire mutex for a + * recursive call. + */ + if (!walk_state || + !obj_desc->method.mutex->mutex.thread_id || + (walk_state->thread->thread_id != + obj_desc->method.mutex->mutex.thread_id)) { + /* + * Acquire the method mutex. This releases the interpreter if we + * block (and reacquires it before it returns) + */ + status = + acpi_ex_system_wait_mutex(obj_desc->method.mutex-> + mutex.os_mutex, + ACPI_WAIT_FOREVER); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Update the mutex and walk info and save the original sync_level */ + + if (walk_state) { + obj_desc->method.mutex->mutex. + original_sync_level = + walk_state->thread->current_sync_level; + + obj_desc->method.mutex->mutex.thread_id = + walk_state->thread->thread_id; + walk_state->thread->current_sync_level = + obj_desc->method.sync_level; + } else { + obj_desc->method.mutex->mutex. + original_sync_level = + obj_desc->method.mutex->mutex.sync_level; + } + } + + /* Always increase acquisition depth */ + + obj_desc->method.mutex->mutex.acquisition_depth++; + } + + /* + * Allocate an Owner ID for this method, only if this is the first thread + * to begin concurrent execution. We only need one owner_id, even if the + * method is invoked recursively. + */ + if (!obj_desc->method.owner_id) { + status = acpi_ut_allocate_owner_id(&obj_desc->method.owner_id); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + } + + /* + * Increment the method parse tree thread count since it has been + * reentered one more time (even if it is the same thread) + */ + obj_desc->method.thread_count++; + return_ACPI_STATUS(status); + + cleanup: + /* On error, must release the method mutex (if present) */ + + if (obj_desc->method.mutex) { + acpi_os_release_mutex(obj_desc->method.mutex->mutex.os_mutex); + } + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_call_control_method + * + * PARAMETERS: Thread - Info for this thread + * this_walk_state - Current walk state + * Op - Current Op to be walked + * + * RETURN: Status + * + * DESCRIPTION: Transfer execution to a called control method + * + ******************************************************************************/ + +acpi_status +acpi_ds_call_control_method(struct acpi_thread_state *thread, + struct acpi_walk_state *this_walk_state, + union acpi_parse_object *op) +{ + acpi_status status; + struct acpi_namespace_node *method_node; + struct acpi_walk_state *next_walk_state = NULL; + union acpi_operand_object *obj_desc; + struct acpi_evaluate_info *info; + u32 i; + + ACPI_FUNCTION_TRACE_PTR(ds_call_control_method, this_walk_state); + + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "Calling method %p, currentstate=%p\n", + this_walk_state->prev_op, this_walk_state)); + + /* + * Get the namespace entry for the control method we are about to call + */ + method_node = this_walk_state->method_call_node; + if (!method_node) { + return_ACPI_STATUS(AE_NULL_ENTRY); + } + + obj_desc = acpi_ns_get_attached_object(method_node); + if (!obj_desc) { + return_ACPI_STATUS(AE_NULL_OBJECT); + } + + /* Init for new method, possibly wait on method mutex */ + + status = acpi_ds_begin_method_execution(method_node, obj_desc, + this_walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Begin method parse/execution. Create a new walk state */ + + next_walk_state = acpi_ds_create_walk_state(obj_desc->method.owner_id, + NULL, obj_desc, thread); + if (!next_walk_state) { + status = AE_NO_MEMORY; + goto cleanup; + } + + /* + * The resolved arguments were put on the previous walk state's operand + * stack. Operands on the previous walk state stack always + * start at index 0. Also, null terminate the list of arguments + */ + this_walk_state->operands[this_walk_state->num_operands] = NULL; + + /* + * Allocate and initialize the evaluation information block + * TBD: this is somewhat inefficient, should change interface to + * ds_init_aml_walk. For now, keeps this struct off the CPU stack + */ + info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info)); + if (!info) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + info->parameters = &this_walk_state->operands[0]; + + status = acpi_ds_init_aml_walk(next_walk_state, NULL, method_node, + obj_desc->method.aml_start, + obj_desc->method.aml_length, info, + ACPI_IMODE_EXECUTE); + + ACPI_FREE(info); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + /* + * Delete the operands on the previous walkstate operand stack + * (they were copied to new objects) + */ + for (i = 0; i < obj_desc->method.param_count; i++) { + acpi_ut_remove_reference(this_walk_state->operands[i]); + this_walk_state->operands[i] = NULL; + } + + /* Clear the operand stack */ + + this_walk_state->num_operands = 0; + + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "**** Begin nested execution of [%4.4s] **** WalkState=%p\n", + method_node->name.ascii, next_walk_state)); + + /* Invoke an internal method if necessary */ + + if (obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY) { + status = obj_desc->method.implementation(next_walk_state); + if (status == AE_OK) { + status = AE_CTRL_TERMINATE; + } + } + + return_ACPI_STATUS(status); + + cleanup: + + /* On error, we must terminate the method properly */ + + acpi_ds_terminate_control_method(obj_desc, next_walk_state); + if (next_walk_state) { + acpi_ds_delete_walk_state(next_walk_state); + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_restart_control_method + * + * PARAMETERS: walk_state - State for preempted method (caller) + * return_desc - Return value from the called method + * + * RETURN: Status + * + * DESCRIPTION: Restart a method that was preempted by another (nested) method + * invocation. Handle the return value (if any) from the callee. + * + ******************************************************************************/ + +acpi_status +acpi_ds_restart_control_method(struct acpi_walk_state *walk_state, + union acpi_operand_object *return_desc) +{ + acpi_status status; + int same_as_implicit_return; + + ACPI_FUNCTION_TRACE_PTR(ds_restart_control_method, walk_state); + + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "****Restart [%4.4s] Op %p ReturnValueFromCallee %p\n", + acpi_ut_get_node_name(walk_state->method_node), + walk_state->method_call_op, return_desc)); + + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + " ReturnFromThisMethodUsed?=%X ResStack %p Walk %p\n", + walk_state->return_used, + walk_state->results, walk_state)); + + /* Did the called method return a value? */ + + if (return_desc) { + + /* Is the implicit return object the same as the return desc? */ + + same_as_implicit_return = + (walk_state->implicit_return_obj == return_desc); + + /* Are we actually going to use the return value? */ + + if (walk_state->return_used) { + + /* Save the return value from the previous method */ + + status = acpi_ds_result_push(return_desc, walk_state); + if (ACPI_FAILURE(status)) { + acpi_ut_remove_reference(return_desc); + return_ACPI_STATUS(status); + } + + /* + * Save as THIS method's return value in case it is returned + * immediately to yet another method + */ + walk_state->return_desc = return_desc; + } + + /* + * The following code is the optional support for the so-called + * "implicit return". Some AML code assumes that the last value of the + * method is "implicitly" returned to the caller, in the absence of an + * explicit return value. + * + * Just save the last result of the method as the return value. + * + * NOTE: this is optional because the ASL language does not actually + * support this behavior. + */ + else if (!acpi_ds_do_implicit_return + (return_desc, walk_state, FALSE) + || same_as_implicit_return) { + /* + * Delete the return value if it will not be used by the + * calling method or remove one reference if the explicit return + * is the same as the implicit return value. + */ + acpi_ut_remove_reference(return_desc); + } + } + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_terminate_control_method + * + * PARAMETERS: method_desc - Method object + * walk_state - State associated with the method + * + * RETURN: None + * + * DESCRIPTION: Terminate a control method. Delete everything that the method + * created, delete all locals and arguments, and delete the parse + * tree if requested. + * + * MUTEX: Interpreter is locked + * + ******************************************************************************/ + +void +acpi_ds_terminate_control_method(union acpi_operand_object *method_desc, + struct acpi_walk_state *walk_state) +{ + + ACPI_FUNCTION_TRACE_PTR(ds_terminate_control_method, walk_state); + + /* method_desc is required, walk_state is optional */ + + if (!method_desc) { + return_VOID; + } + + if (walk_state) { + + /* Delete all arguments and locals */ + + acpi_ds_method_data_delete_all(walk_state); + + /* + * If method is serialized, release the mutex and restore the + * current sync level for this thread + */ + if (method_desc->method.mutex) { + + /* Acquisition Depth handles recursive calls */ + + method_desc->method.mutex->mutex.acquisition_depth--; + if (!method_desc->method.mutex->mutex.acquisition_depth) { + walk_state->thread->current_sync_level = + method_desc->method.mutex->mutex. + original_sync_level; + + acpi_os_release_mutex(method_desc->method. + mutex->mutex.os_mutex); + method_desc->method.mutex->mutex.thread_id = NULL; + } + } + + /* + * Delete any namespace objects created anywhere within + * the namespace by the execution of this method + */ + acpi_ns_delete_namespace_by_owner(method_desc->method.owner_id); + } + + /* Decrement the thread count on the method */ + + if (method_desc->method.thread_count) { + method_desc->method.thread_count--; + } else { + ACPI_ERROR((AE_INFO, "Invalid zero thread count in method")); + } + + /* Are there any other threads currently executing this method? */ + + if (method_desc->method.thread_count) { + /* + * Additional threads. Do not release the owner_id in this case, + * we immediately reuse it for the next thread executing this method + */ + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "*** Completed execution of one thread, %d threads remaining\n", + method_desc->method.thread_count)); + } else { + /* This is the only executing thread for this method */ + + /* + * Support to dynamically change a method from not_serialized to + * Serialized if it appears that the method is incorrectly written and + * does not support multiple thread execution. The best example of this + * is if such a method creates namespace objects and blocks. A second + * thread will fail with an AE_ALREADY_EXISTS exception + * + * This code is here because we must wait until the last thread exits + * before creating the synchronization semaphore. + */ + if ((method_desc->method.method_flags & AML_METHOD_SERIALIZED) + && (!method_desc->method.mutex)) { + (void)acpi_ds_create_method_mutex(method_desc); + } + + /* No more threads, we can free the owner_id */ + + acpi_ut_release_owner_id(&method_desc->method.owner_id); + } + + return_VOID; +} diff --git a/drivers/acpi/acpica/dsmthdat.c b/drivers/acpi/acpica/dsmthdat.c new file mode 100644 index 000000000000..a1a11996a651 --- /dev/null +++ b/drivers/acpi/acpica/dsmthdat.c @@ -0,0 +1,718 @@ +/******************************************************************************* + * + * Module Name: dsmthdat - control method arguments and local variables + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_DISPATCHER +ACPI_MODULE_NAME("dsmthdat") + +/* Local prototypes */ +static void +acpi_ds_method_data_delete_value(u8 type, + u32 index, struct acpi_walk_state *walk_state); + +static acpi_status +acpi_ds_method_data_set_value(u8 type, + u32 index, + union acpi_operand_object *object, + struct acpi_walk_state *walk_state); + +#ifdef ACPI_OBSOLETE_FUNCTIONS +acpi_object_type +acpi_ds_method_data_get_type(u16 opcode, + u32 index, struct acpi_walk_state *walk_state); +#endif + +/******************************************************************************* + * + * FUNCTION: acpi_ds_method_data_init + * + * PARAMETERS: walk_state - Current walk state object + * + * RETURN: Status + * + * DESCRIPTION: Initialize the data structures that hold the method's arguments + * and locals. The data struct is an array of namespace nodes for + * each - this allows ref_of and de_ref_of to work properly for these + * special data types. + * + * NOTES: walk_state fields are initialized to zero by the + * ACPI_ALLOCATE_ZEROED(). + * + * A pseudo-Namespace Node is assigned to each argument and local + * so that ref_of() can return a pointer to the Node. + * + ******************************************************************************/ + +void acpi_ds_method_data_init(struct acpi_walk_state *walk_state) +{ + u32 i; + + ACPI_FUNCTION_TRACE(ds_method_data_init); + + /* Init the method arguments */ + + for (i = 0; i < ACPI_METHOD_NUM_ARGS; i++) { + ACPI_MOVE_32_TO_32(&walk_state->arguments[i].name, + NAMEOF_ARG_NTE); + walk_state->arguments[i].name.integer |= (i << 24); + walk_state->arguments[i].descriptor_type = ACPI_DESC_TYPE_NAMED; + walk_state->arguments[i].type = ACPI_TYPE_ANY; + walk_state->arguments[i].flags = + ANOBJ_END_OF_PEER_LIST | ANOBJ_METHOD_ARG; + } + + /* Init the method locals */ + + for (i = 0; i < ACPI_METHOD_NUM_LOCALS; i++) { + ACPI_MOVE_32_TO_32(&walk_state->local_variables[i].name, + NAMEOF_LOCAL_NTE); + + walk_state->local_variables[i].name.integer |= (i << 24); + walk_state->local_variables[i].descriptor_type = + ACPI_DESC_TYPE_NAMED; + walk_state->local_variables[i].type = ACPI_TYPE_ANY; + walk_state->local_variables[i].flags = + ANOBJ_END_OF_PEER_LIST | ANOBJ_METHOD_LOCAL; + } + + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_method_data_delete_all + * + * PARAMETERS: walk_state - Current walk state object + * + * RETURN: None + * + * DESCRIPTION: Delete method locals and arguments. Arguments are only + * deleted if this method was called from another method. + * + ******************************************************************************/ + +void acpi_ds_method_data_delete_all(struct acpi_walk_state *walk_state) +{ + u32 index; + + ACPI_FUNCTION_TRACE(ds_method_data_delete_all); + + /* Detach the locals */ + + for (index = 0; index < ACPI_METHOD_NUM_LOCALS; index++) { + if (walk_state->local_variables[index].object) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Deleting Local%d=%p\n", + index, + walk_state->local_variables[index]. + object)); + + /* Detach object (if present) and remove a reference */ + + acpi_ns_detach_object(&walk_state-> + local_variables[index]); + } + } + + /* Detach the arguments */ + + for (index = 0; index < ACPI_METHOD_NUM_ARGS; index++) { + if (walk_state->arguments[index].object) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Deleting Arg%d=%p\n", + index, + walk_state->arguments[index].object)); + + /* Detach object (if present) and remove a reference */ + + acpi_ns_detach_object(&walk_state->arguments[index]); + } + } + + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_method_data_init_args + * + * PARAMETERS: *Params - Pointer to a parameter list for the method + * max_param_count - The arg count for this method + * walk_state - Current walk state object + * + * RETURN: Status + * + * DESCRIPTION: Initialize arguments for a method. The parameter list is a list + * of ACPI operand objects, either null terminated or whose length + * is defined by max_param_count. + * + ******************************************************************************/ + +acpi_status +acpi_ds_method_data_init_args(union acpi_operand_object **params, + u32 max_param_count, + struct acpi_walk_state *walk_state) +{ + acpi_status status; + u32 index = 0; + + ACPI_FUNCTION_TRACE_PTR(ds_method_data_init_args, params); + + if (!params) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "No param list passed to method\n")); + return_ACPI_STATUS(AE_OK); + } + + /* Copy passed parameters into the new method stack frame */ + + while ((index < ACPI_METHOD_NUM_ARGS) && + (index < max_param_count) && params[index]) { + /* + * A valid parameter. + * Store the argument in the method/walk descriptor. + * Do not copy the arg in order to implement call by reference + */ + status = acpi_ds_method_data_set_value(ACPI_REFCLASS_ARG, index, + params[index], + walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + index++; + } + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%d args passed to method\n", index)); + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_method_data_get_node + * + * PARAMETERS: Type - Either ACPI_REFCLASS_LOCAL or + * ACPI_REFCLASS_ARG + * Index - Which Local or Arg whose type to get + * walk_state - Current walk state object + * Node - Where the node is returned. + * + * RETURN: Status and node + * + * DESCRIPTION: Get the Node associated with a local or arg. + * + ******************************************************************************/ + +acpi_status +acpi_ds_method_data_get_node(u8 type, + u32 index, + struct acpi_walk_state *walk_state, + struct acpi_namespace_node **node) +{ + ACPI_FUNCTION_TRACE(ds_method_data_get_node); + + /* + * Method Locals and Arguments are supported + */ + switch (type) { + case ACPI_REFCLASS_LOCAL: + + if (index > ACPI_METHOD_MAX_LOCAL) { + ACPI_ERROR((AE_INFO, + "Local index %d is invalid (max %d)", + index, ACPI_METHOD_MAX_LOCAL)); + return_ACPI_STATUS(AE_AML_INVALID_INDEX); + } + + /* Return a pointer to the pseudo-node */ + + *node = &walk_state->local_variables[index]; + break; + + case ACPI_REFCLASS_ARG: + + if (index > ACPI_METHOD_MAX_ARG) { + ACPI_ERROR((AE_INFO, + "Arg index %d is invalid (max %d)", + index, ACPI_METHOD_MAX_ARG)); + return_ACPI_STATUS(AE_AML_INVALID_INDEX); + } + + /* Return a pointer to the pseudo-node */ + + *node = &walk_state->arguments[index]; + break; + + default: + ACPI_ERROR((AE_INFO, "Type %d is invalid", type)); + return_ACPI_STATUS(AE_TYPE); + } + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_method_data_set_value + * + * PARAMETERS: Type - Either ACPI_REFCLASS_LOCAL or + * ACPI_REFCLASS_ARG + * Index - Which Local or Arg to get + * Object - Object to be inserted into the stack entry + * walk_state - Current walk state object + * + * RETURN: Status + * + * DESCRIPTION: Insert an object onto the method stack at entry Opcode:Index. + * Note: There is no "implicit conversion" for locals. + * + ******************************************************************************/ + +static acpi_status +acpi_ds_method_data_set_value(u8 type, + u32 index, + union acpi_operand_object *object, + struct acpi_walk_state *walk_state) +{ + acpi_status status; + struct acpi_namespace_node *node; + + ACPI_FUNCTION_TRACE(ds_method_data_set_value); + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "NewObj %p Type %2.2X, Refs=%d [%s]\n", object, + type, object->common.reference_count, + acpi_ut_get_type_name(object->common.type))); + + /* Get the namespace node for the arg/local */ + + status = acpi_ds_method_data_get_node(type, index, walk_state, &node); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * Increment ref count so object can't be deleted while installed. + * NOTE: We do not copy the object in order to preserve the call by + * reference semantics of ACPI Control Method invocation. + * (See ACPI Specification 2.0_c) + */ + acpi_ut_add_reference(object); + + /* Install the object */ + + node->object = object; + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_method_data_get_value + * + * PARAMETERS: Type - Either ACPI_REFCLASS_LOCAL or + * ACPI_REFCLASS_ARG + * Index - Which local_var or argument to get + * walk_state - Current walk state object + * dest_desc - Where Arg or Local value is returned + * + * RETURN: Status + * + * DESCRIPTION: Retrieve value of selected Arg or Local for this method + * Used only in acpi_ex_resolve_to_value(). + * + ******************************************************************************/ + +acpi_status +acpi_ds_method_data_get_value(u8 type, + u32 index, + struct acpi_walk_state *walk_state, + union acpi_operand_object **dest_desc) +{ + acpi_status status; + struct acpi_namespace_node *node; + union acpi_operand_object *object; + + ACPI_FUNCTION_TRACE(ds_method_data_get_value); + + /* Validate the object descriptor */ + + if (!dest_desc) { + ACPI_ERROR((AE_INFO, "Null object descriptor pointer")); + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* Get the namespace node for the arg/local */ + + status = acpi_ds_method_data_get_node(type, index, walk_state, &node); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Get the object from the node */ + + object = node->object; + + /* Examine the returned object, it must be valid. */ + + if (!object) { + /* + * Index points to uninitialized object. + * This means that either 1) The expected argument was + * not passed to the method, or 2) A local variable + * was referenced by the method (via the ASL) + * before it was initialized. Either case is an error. + */ + + /* If slack enabled, init the local_x/arg_x to an Integer of value zero */ + + if (acpi_gbl_enable_interpreter_slack) { + object = + acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + if (!object) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + object->integer.value = 0; + node->object = object; + } + + /* Otherwise, return the error */ + + else + switch (type) { + case ACPI_REFCLASS_ARG: + + ACPI_ERROR((AE_INFO, + "Uninitialized Arg[%d] at node %p", + index, node)); + + return_ACPI_STATUS(AE_AML_UNINITIALIZED_ARG); + + case ACPI_REFCLASS_LOCAL: + + ACPI_ERROR((AE_INFO, + "Uninitialized Local[%d] at node %p", + index, node)); + + return_ACPI_STATUS(AE_AML_UNINITIALIZED_LOCAL); + + default: + + ACPI_ERROR((AE_INFO, + "Not a Arg/Local opcode: %X", + type)); + return_ACPI_STATUS(AE_AML_INTERNAL); + } + } + + /* + * The Index points to an initialized and valid object. + * Return an additional reference to the object + */ + *dest_desc = object; + acpi_ut_add_reference(object); + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_method_data_delete_value + * + * PARAMETERS: Type - Either ACPI_REFCLASS_LOCAL or + * ACPI_REFCLASS_ARG + * Index - Which local_var or argument to delete + * walk_state - Current walk state object + * + * RETURN: None + * + * DESCRIPTION: Delete the entry at Opcode:Index. Inserts + * a null into the stack slot after the object is deleted. + * + ******************************************************************************/ + +static void +acpi_ds_method_data_delete_value(u8 type, + u32 index, struct acpi_walk_state *walk_state) +{ + acpi_status status; + struct acpi_namespace_node *node; + union acpi_operand_object *object; + + ACPI_FUNCTION_TRACE(ds_method_data_delete_value); + + /* Get the namespace node for the arg/local */ + + status = acpi_ds_method_data_get_node(type, index, walk_state, &node); + if (ACPI_FAILURE(status)) { + return_VOID; + } + + /* Get the associated object */ + + object = acpi_ns_get_attached_object(node); + + /* + * Undefine the Arg or Local by setting its descriptor + * pointer to NULL. Locals/Args can contain both + * ACPI_OPERAND_OBJECTS and ACPI_NAMESPACE_NODEs + */ + node->object = NULL; + + if ((object) && + (ACPI_GET_DESCRIPTOR_TYPE(object) == ACPI_DESC_TYPE_OPERAND)) { + /* + * There is a valid object. + * Decrement the reference count by one to balance the + * increment when the object was stored. + */ + acpi_ut_remove_reference(object); + } + + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_store_object_to_local + * + * PARAMETERS: Type - Either ACPI_REFCLASS_LOCAL or + * ACPI_REFCLASS_ARG + * Index - Which Local or Arg to set + * obj_desc - Value to be stored + * walk_state - Current walk state + * + * RETURN: Status + * + * DESCRIPTION: Store a value in an Arg or Local. The obj_desc is installed + * as the new value for the Arg or Local and the reference count + * for obj_desc is incremented. + * + ******************************************************************************/ + +acpi_status +acpi_ds_store_object_to_local(u8 type, + u32 index, + union acpi_operand_object *obj_desc, + struct acpi_walk_state *walk_state) +{ + acpi_status status; + struct acpi_namespace_node *node; + union acpi_operand_object *current_obj_desc; + union acpi_operand_object *new_obj_desc; + + ACPI_FUNCTION_TRACE(ds_store_object_to_local); + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Type=%2.2X Index=%d Obj=%p\n", + type, index, obj_desc)); + + /* Parameter validation */ + + if (!obj_desc) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* Get the namespace node for the arg/local */ + + status = acpi_ds_method_data_get_node(type, index, walk_state, &node); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + current_obj_desc = acpi_ns_get_attached_object(node); + if (current_obj_desc == obj_desc) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Obj=%p already installed!\n", + obj_desc)); + return_ACPI_STATUS(status); + } + + /* + * If the reference count on the object is more than one, we must + * take a copy of the object before we store. A reference count + * of exactly 1 means that the object was just created during the + * evaluation of an expression, and we can safely use it since it + * is not used anywhere else. + */ + new_obj_desc = obj_desc; + if (obj_desc->common.reference_count > 1) { + status = + acpi_ut_copy_iobject_to_iobject(obj_desc, &new_obj_desc, + walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + + /* + * If there is an object already in this slot, we either + * have to delete it, or if this is an argument and there + * is an object reference stored there, we have to do + * an indirect store! + */ + if (current_obj_desc) { + /* + * Check for an indirect store if an argument + * contains an object reference (stored as an Node). + * We don't allow this automatic dereferencing for + * locals, since a store to a local should overwrite + * anything there, including an object reference. + * + * If both Arg0 and Local0 contain ref_of (Local4): + * + * Store (1, Arg0) - Causes indirect store to local4 + * Store (1, Local0) - Stores 1 in local0, overwriting + * the reference to local4 + * Store (1, de_refof (Local0)) - Causes indirect store to local4 + * + * Weird, but true. + */ + if (type == ACPI_REFCLASS_ARG) { + /* + * If we have a valid reference object that came from ref_of(), + * do the indirect store + */ + if ((ACPI_GET_DESCRIPTOR_TYPE(current_obj_desc) == + ACPI_DESC_TYPE_OPERAND) + && (current_obj_desc->common.type == + ACPI_TYPE_LOCAL_REFERENCE) + && (current_obj_desc->reference.class == + ACPI_REFCLASS_REFOF)) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Arg (%p) is an ObjRef(Node), storing in node %p\n", + new_obj_desc, + current_obj_desc)); + + /* + * Store this object to the Node (perform the indirect store) + * NOTE: No implicit conversion is performed, as per the ACPI + * specification rules on storing to Locals/Args. + */ + status = + acpi_ex_store_object_to_node(new_obj_desc, + current_obj_desc-> + reference. + object, + walk_state, + ACPI_NO_IMPLICIT_CONVERSION); + + /* Remove local reference if we copied the object above */ + + if (new_obj_desc != obj_desc) { + acpi_ut_remove_reference(new_obj_desc); + } + return_ACPI_STATUS(status); + } + } + + /* Delete the existing object before storing the new one */ + + acpi_ds_method_data_delete_value(type, index, walk_state); + } + + /* + * Install the Obj descriptor (*new_obj_desc) into + * the descriptor for the Arg or Local. + * (increments the object reference count by one) + */ + status = + acpi_ds_method_data_set_value(type, index, new_obj_desc, + walk_state); + + /* Remove local reference if we copied the object above */ + + if (new_obj_desc != obj_desc) { + acpi_ut_remove_reference(new_obj_desc); + } + + return_ACPI_STATUS(status); +} + +#ifdef ACPI_OBSOLETE_FUNCTIONS +/******************************************************************************* + * + * FUNCTION: acpi_ds_method_data_get_type + * + * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP + * Index - Which Local or Arg whose type to get + * walk_state - Current walk state object + * + * RETURN: Data type of current value of the selected Arg or Local + * + * DESCRIPTION: Get the type of the object stored in the Local or Arg + * + ******************************************************************************/ + +acpi_object_type +acpi_ds_method_data_get_type(u16 opcode, + u32 index, struct acpi_walk_state *walk_state) +{ + acpi_status status; + struct acpi_namespace_node *node; + union acpi_operand_object *object; + + ACPI_FUNCTION_TRACE(ds_method_data_get_type); + + /* Get the namespace node for the arg/local */ + + status = acpi_ds_method_data_get_node(opcode, index, walk_state, &node); + if (ACPI_FAILURE(status)) { + return_VALUE((ACPI_TYPE_NOT_FOUND)); + } + + /* Get the object */ + + object = acpi_ns_get_attached_object(node); + if (!object) { + + /* Uninitialized local/arg, return TYPE_ANY */ + + return_VALUE(ACPI_TYPE_ANY); + } + + /* Get the object type */ + + return_VALUE(ACPI_GET_OBJECT_TYPE(object)); +} +#endif diff --git a/drivers/acpi/acpica/dsobject.c b/drivers/acpi/acpica/dsobject.c new file mode 100644 index 000000000000..6e6c73cc39ff --- /dev/null +++ b/drivers/acpi/acpica/dsobject.c @@ -0,0 +1,813 @@ +/****************************************************************************** + * + * Module Name: dsobject - Dispatcher object management routines + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_DISPATCHER +ACPI_MODULE_NAME("dsobject") + +/* Local prototypes */ +static acpi_status +acpi_ds_build_internal_object(struct acpi_walk_state *walk_state, + union acpi_parse_object *op, + union acpi_operand_object **obj_desc_ptr); + +#ifndef ACPI_NO_METHOD_EXECUTION +/******************************************************************************* + * + * FUNCTION: acpi_ds_build_internal_object + * + * PARAMETERS: walk_state - Current walk state + * Op - Parser object to be translated + * obj_desc_ptr - Where the ACPI internal object is returned + * + * RETURN: Status + * + * DESCRIPTION: Translate a parser Op object to the equivalent namespace object + * Simple objects are any objects other than a package object! + * + ******************************************************************************/ + +static acpi_status +acpi_ds_build_internal_object(struct acpi_walk_state *walk_state, + union acpi_parse_object *op, + union acpi_operand_object **obj_desc_ptr) +{ + union acpi_operand_object *obj_desc; + acpi_status status; + + ACPI_FUNCTION_TRACE(ds_build_internal_object); + + *obj_desc_ptr = NULL; + if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) { + /* + * This is a named object reference. If this name was + * previously looked up in the namespace, it was stored in this op. + * Otherwise, go ahead and look it up now + */ + if (!op->common.node) { + status = acpi_ns_lookup(walk_state->scope_info, + op->common.value.string, + ACPI_TYPE_ANY, + ACPI_IMODE_EXECUTE, + ACPI_NS_SEARCH_PARENT | + ACPI_NS_DONT_OPEN_SCOPE, NULL, + ACPI_CAST_INDIRECT_PTR(struct + acpi_namespace_node, + &(op-> + common. + node))); + if (ACPI_FAILURE(status)) { + + /* Check if we are resolving a named reference within a package */ + + if ((status == AE_NOT_FOUND) + && (acpi_gbl_enable_interpreter_slack) + && + ((op->common.parent->common.aml_opcode == + AML_PACKAGE_OP) + || (op->common.parent->common.aml_opcode == + AML_VAR_PACKAGE_OP))) { + /* + * We didn't find the target and we are populating elements + * of a package - ignore if slack enabled. Some ASL code + * contains dangling invalid references in packages and + * expects that no exception will be issued. Leave the + * element as a null element. It cannot be used, but it + * can be overwritten by subsequent ASL code - this is + * typically the case. + */ + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Ignoring unresolved reference in package [%4.4s]\n", + walk_state-> + scope_info->scope. + node->name.ascii)); + + return_ACPI_STATUS(AE_OK); + } else { + ACPI_ERROR_NAMESPACE(op->common.value. + string, status); + } + + return_ACPI_STATUS(status); + } + } + + /* Special object resolution for elements of a package */ + + if ((op->common.parent->common.aml_opcode == AML_PACKAGE_OP) || + (op->common.parent->common.aml_opcode == + AML_VAR_PACKAGE_OP)) { + /* + * Attempt to resolve the node to a value before we insert it into + * the package. If this is a reference to a common data type, + * resolve it immediately. According to the ACPI spec, package + * elements can only be "data objects" or method references. + * Attempt to resolve to an Integer, Buffer, String or Package. + * If cannot, return the named reference (for things like Devices, + * Methods, etc.) Buffer Fields and Fields will resolve to simple + * objects (int/buf/str/pkg). + * + * NOTE: References to things like Devices, Methods, Mutexes, etc. + * will remain as named references. This behavior is not described + * in the ACPI spec, but it appears to be an oversight. + */ + obj_desc = + ACPI_CAST_PTR(union acpi_operand_object, + op->common.node); + + status = + acpi_ex_resolve_node_to_value(ACPI_CAST_INDIRECT_PTR + (struct + acpi_namespace_node, + &obj_desc), + walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + switch (op->common.node->type) { + /* + * For these types, we need the actual node, not the subobject. + * However, the subobject did not get an extra reference count above. + * + * TBD: should ex_resolve_node_to_value be changed to fix this? + */ + case ACPI_TYPE_DEVICE: + case ACPI_TYPE_THERMAL: + + acpi_ut_add_reference(op->common.node->object); + + /*lint -fallthrough */ + /* + * For these types, we need the actual node, not the subobject. + * The subobject got an extra reference count in ex_resolve_node_to_value. + */ + case ACPI_TYPE_MUTEX: + case ACPI_TYPE_METHOD: + case ACPI_TYPE_POWER: + case ACPI_TYPE_PROCESSOR: + case ACPI_TYPE_EVENT: + case ACPI_TYPE_REGION: + + /* We will create a reference object for these types below */ + break; + + default: + /* + * All other types - the node was resolved to an actual + * object, we are done. + */ + goto exit; + } + } + } + + /* Create and init a new internal ACPI object */ + + obj_desc = acpi_ut_create_internal_object((acpi_ps_get_opcode_info + (op->common.aml_opcode))-> + object_type); + if (!obj_desc) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + status = + acpi_ds_init_object_from_op(walk_state, op, op->common.aml_opcode, + &obj_desc); + if (ACPI_FAILURE(status)) { + acpi_ut_remove_reference(obj_desc); + return_ACPI_STATUS(status); + } + + exit: + *obj_desc_ptr = obj_desc; + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_build_internal_buffer_obj + * + * PARAMETERS: walk_state - Current walk state + * Op - Parser object to be translated + * buffer_length - Length of the buffer + * obj_desc_ptr - Where the ACPI internal object is returned + * + * RETURN: Status + * + * DESCRIPTION: Translate a parser Op package object to the equivalent + * namespace object + * + ******************************************************************************/ + +acpi_status +acpi_ds_build_internal_buffer_obj(struct acpi_walk_state *walk_state, + union acpi_parse_object *op, + u32 buffer_length, + union acpi_operand_object **obj_desc_ptr) +{ + union acpi_parse_object *arg; + union acpi_operand_object *obj_desc; + union acpi_parse_object *byte_list; + u32 byte_list_length = 0; + + ACPI_FUNCTION_TRACE(ds_build_internal_buffer_obj); + + /* + * If we are evaluating a Named buffer object "Name (xxxx, Buffer)". + * The buffer object already exists (from the NS node), otherwise it must + * be created. + */ + obj_desc = *obj_desc_ptr; + if (!obj_desc) { + + /* Create a new buffer object */ + + obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER); + *obj_desc_ptr = obj_desc; + if (!obj_desc) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + } + + /* + * Second arg is the buffer data (optional) byte_list can be either + * individual bytes or a string initializer. In either case, a + * byte_list appears in the AML. + */ + arg = op->common.value.arg; /* skip first arg */ + + byte_list = arg->named.next; + if (byte_list) { + if (byte_list->common.aml_opcode != AML_INT_BYTELIST_OP) { + ACPI_ERROR((AE_INFO, + "Expecting bytelist, got AML opcode %X in op %p", + byte_list->common.aml_opcode, byte_list)); + + acpi_ut_remove_reference(obj_desc); + return (AE_TYPE); + } + + byte_list_length = (u32) byte_list->common.value.integer; + } + + /* + * The buffer length (number of bytes) will be the larger of: + * 1) The specified buffer length and + * 2) The length of the initializer byte list + */ + obj_desc->buffer.length = buffer_length; + if (byte_list_length > buffer_length) { + obj_desc->buffer.length = byte_list_length; + } + + /* Allocate the buffer */ + + if (obj_desc->buffer.length == 0) { + obj_desc->buffer.pointer = NULL; + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Buffer defined with zero length in AML, creating\n")); + } else { + obj_desc->buffer.pointer = + ACPI_ALLOCATE_ZEROED(obj_desc->buffer.length); + if (!obj_desc->buffer.pointer) { + acpi_ut_delete_object_desc(obj_desc); + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* Initialize buffer from the byte_list (if present) */ + + if (byte_list) { + ACPI_MEMCPY(obj_desc->buffer.pointer, + byte_list->named.data, byte_list_length); + } + } + + obj_desc->buffer.flags |= AOPOBJ_DATA_VALID; + op->common.node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_desc); + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_build_internal_package_obj + * + * PARAMETERS: walk_state - Current walk state + * Op - Parser object to be translated + * element_count - Number of elements in the package - this is + * the num_elements argument to Package() + * obj_desc_ptr - Where the ACPI internal object is returned + * + * RETURN: Status + * + * DESCRIPTION: Translate a parser Op package object to the equivalent + * namespace object + * + * NOTE: The number of elements in the package will be always be the num_elements + * count, regardless of the number of elements in the package list. If + * num_elements is smaller, only that many package list elements are used. + * if num_elements is larger, the Package object is padded out with + * objects of type Uninitialized (as per ACPI spec.) + * + * Even though the ASL compilers do not allow num_elements to be smaller + * than the Package list length (for the fixed length package opcode), some + * BIOS code modifies the AML on the fly to adjust the num_elements, and + * this code compensates for that. This also provides compatibility with + * other AML interpreters. + * + ******************************************************************************/ + +acpi_status +acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state, + union acpi_parse_object *op, + u32 element_count, + union acpi_operand_object **obj_desc_ptr) +{ + union acpi_parse_object *arg; + union acpi_parse_object *parent; + union acpi_operand_object *obj_desc = NULL; + acpi_status status = AE_OK; + unsigned i; + u16 index; + u16 reference_count; + + ACPI_FUNCTION_TRACE(ds_build_internal_package_obj); + + /* Find the parent of a possibly nested package */ + + parent = op->common.parent; + while ((parent->common.aml_opcode == AML_PACKAGE_OP) || + (parent->common.aml_opcode == AML_VAR_PACKAGE_OP)) { + parent = parent->common.parent; + } + + /* + * If we are evaluating a Named package object "Name (xxxx, Package)", + * the package object already exists, otherwise it must be created. + */ + obj_desc = *obj_desc_ptr; + if (!obj_desc) { + obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_PACKAGE); + *obj_desc_ptr = obj_desc; + if (!obj_desc) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + obj_desc->package.node = parent->common.node; + } + + /* + * Allocate the element array (array of pointers to the individual + * objects) based on the num_elements parameter. Add an extra pointer slot + * so that the list is always null terminated. + */ + obj_desc->package.elements = ACPI_ALLOCATE_ZEROED(((acpi_size) + element_count + + 1) * sizeof(void *)); + + if (!obj_desc->package.elements) { + acpi_ut_delete_object_desc(obj_desc); + return_ACPI_STATUS(AE_NO_MEMORY); + } + + obj_desc->package.count = element_count; + + /* + * Initialize the elements of the package, up to the num_elements count. + * Package is automatically padded with uninitialized (NULL) elements + * if num_elements is greater than the package list length. Likewise, + * Package is truncated if num_elements is less than the list length. + */ + arg = op->common.value.arg; + arg = arg->common.next; + for (i = 0; arg && (i < element_count); i++) { + if (arg->common.aml_opcode == AML_INT_RETURN_VALUE_OP) { + if (arg->common.node->type == ACPI_TYPE_METHOD) { + /* + * A method reference "looks" to the parser to be a method + * invocation, so we special case it here + */ + arg->common.aml_opcode = AML_INT_NAMEPATH_OP; + status = + acpi_ds_build_internal_object(walk_state, + arg, + &obj_desc-> + package. + elements[i]); + } else { + /* This package element is already built, just get it */ + + obj_desc->package.elements[i] = + ACPI_CAST_PTR(union acpi_operand_object, + arg->common.node); + } + } else { + status = acpi_ds_build_internal_object(walk_state, arg, + &obj_desc-> + package. + elements[i]); + } + + if (*obj_desc_ptr) { + + /* Existing package, get existing reference count */ + + reference_count = + (*obj_desc_ptr)->common.reference_count; + if (reference_count > 1) { + + /* Make new element ref count match original ref count */ + + for (index = 0; index < (reference_count - 1); + index++) { + acpi_ut_add_reference((obj_desc-> + package. + elements[i])); + } + } + } + + arg = arg->common.next; + } + + /* Check for match between num_elements and actual length of package_list */ + + if (arg) { + /* + * num_elements was exhausted, but there are remaining elements in the + * package_list. + * + * Note: technically, this is an error, from ACPI spec: "It is an error + * for NumElements to be less than the number of elements in the + * PackageList". However, for now, we just print an error message and + * no exception is returned. + */ + while (arg) { + + /* Find out how many elements there really are */ + + i++; + arg = arg->common.next; + } + + ACPI_WARNING((AE_INFO, + "Package List length (%X) larger than NumElements count (%X), truncated\n", + i, element_count)); + } else if (i < element_count) { + /* + * Arg list (elements) was exhausted, but we did not reach num_elements count. + * Note: this is not an error, the package is padded out with NULLs. + */ + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Package List length (%X) smaller than NumElements count (%X), padded with null elements\n", + i, element_count)); + } + + obj_desc->package.flags |= AOPOBJ_DATA_VALID; + op->common.node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_desc); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_create_node + * + * PARAMETERS: walk_state - Current walk state + * Node - NS Node to be initialized + * Op - Parser object to be translated + * + * RETURN: Status + * + * DESCRIPTION: Create the object to be associated with a namespace node + * + ******************************************************************************/ + +acpi_status +acpi_ds_create_node(struct acpi_walk_state *walk_state, + struct acpi_namespace_node *node, + union acpi_parse_object *op) +{ + acpi_status status; + union acpi_operand_object *obj_desc; + + ACPI_FUNCTION_TRACE_PTR(ds_create_node, op); + + /* + * Because of the execution pass through the non-control-method + * parts of the table, we can arrive here twice. Only init + * the named object node the first time through + */ + if (acpi_ns_get_attached_object(node)) { + return_ACPI_STATUS(AE_OK); + } + + if (!op->common.value.arg) { + + /* No arguments, there is nothing to do */ + + return_ACPI_STATUS(AE_OK); + } + + /* Build an internal object for the argument(s) */ + + status = acpi_ds_build_internal_object(walk_state, op->common.value.arg, + &obj_desc); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Re-type the object according to its argument */ + + node->type = ACPI_GET_OBJECT_TYPE(obj_desc); + + /* Attach obj to node */ + + status = acpi_ns_attach_object(node, obj_desc, node->type); + + /* Remove local reference to the object */ + + acpi_ut_remove_reference(obj_desc); + return_ACPI_STATUS(status); +} + +#endif /* ACPI_NO_METHOD_EXECUTION */ + +/******************************************************************************* + * + * FUNCTION: acpi_ds_init_object_from_op + * + * PARAMETERS: walk_state - Current walk state + * Op - Parser op used to init the internal object + * Opcode - AML opcode associated with the object + * ret_obj_desc - Namespace object to be initialized + * + * RETURN: Status + * + * DESCRIPTION: Initialize a namespace object from a parser Op and its + * associated arguments. The namespace object is a more compact + * representation of the Op and its arguments. + * + ******************************************************************************/ + +acpi_status +acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state, + union acpi_parse_object *op, + u16 opcode, + union acpi_operand_object **ret_obj_desc) +{ + const struct acpi_opcode_info *op_info; + union acpi_operand_object *obj_desc; + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE(ds_init_object_from_op); + + obj_desc = *ret_obj_desc; + op_info = acpi_ps_get_opcode_info(opcode); + if (op_info->class == AML_CLASS_UNKNOWN) { + + /* Unknown opcode */ + + return_ACPI_STATUS(AE_TYPE); + } + + /* Perform per-object initialization */ + + switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { + case ACPI_TYPE_BUFFER: + + /* + * Defer evaluation of Buffer term_arg operand + */ + obj_desc->buffer.node = + ACPI_CAST_PTR(struct acpi_namespace_node, + walk_state->operands[0]); + obj_desc->buffer.aml_start = op->named.data; + obj_desc->buffer.aml_length = op->named.length; + break; + + case ACPI_TYPE_PACKAGE: + + /* + * Defer evaluation of Package term_arg operand + */ + obj_desc->package.node = + ACPI_CAST_PTR(struct acpi_namespace_node, + walk_state->operands[0]); + obj_desc->package.aml_start = op->named.data; + obj_desc->package.aml_length = op->named.length; + break; + + case ACPI_TYPE_INTEGER: + + switch (op_info->type) { + case AML_TYPE_CONSTANT: + /* + * Resolve AML Constants here - AND ONLY HERE! + * All constants are integers. + * We mark the integer with a flag that indicates that it started + * life as a constant -- so that stores to constants will perform + * as expected (noop). zero_op is used as a placeholder for optional + * target operands. + */ + obj_desc->common.flags = AOPOBJ_AML_CONSTANT; + + switch (opcode) { + case AML_ZERO_OP: + + obj_desc->integer.value = 0; + break; + + case AML_ONE_OP: + + obj_desc->integer.value = 1; + break; + + case AML_ONES_OP: + + obj_desc->integer.value = ACPI_INTEGER_MAX; + + /* Truncate value if we are executing from a 32-bit ACPI table */ + +#ifndef ACPI_NO_METHOD_EXECUTION + acpi_ex_truncate_for32bit_table(obj_desc); +#endif + break; + + case AML_REVISION_OP: + + obj_desc->integer.value = ACPI_CA_VERSION; + break; + + default: + + ACPI_ERROR((AE_INFO, + "Unknown constant opcode %X", + opcode)); + status = AE_AML_OPERAND_TYPE; + break; + } + break; + + case AML_TYPE_LITERAL: + + obj_desc->integer.value = op->common.value.integer; +#ifndef ACPI_NO_METHOD_EXECUTION + acpi_ex_truncate_for32bit_table(obj_desc); +#endif + break; + + default: + ACPI_ERROR((AE_INFO, "Unknown Integer type %X", + op_info->type)); + status = AE_AML_OPERAND_TYPE; + break; + } + break; + + case ACPI_TYPE_STRING: + + obj_desc->string.pointer = op->common.value.string; + obj_desc->string.length = + (u32) ACPI_STRLEN(op->common.value.string); + + /* + * The string is contained in the ACPI table, don't ever try + * to delete it + */ + obj_desc->common.flags |= AOPOBJ_STATIC_POINTER; + break; + + case ACPI_TYPE_METHOD: + break; + + case ACPI_TYPE_LOCAL_REFERENCE: + + switch (op_info->type) { + case AML_TYPE_LOCAL_VARIABLE: + + /* Local ID (0-7) is (AML opcode - base AML_LOCAL_OP) */ + + obj_desc->reference.value = opcode - AML_LOCAL_OP; + obj_desc->reference.class = ACPI_REFCLASS_LOCAL; + +#ifndef ACPI_NO_METHOD_EXECUTION + status = + acpi_ds_method_data_get_node(ACPI_REFCLASS_LOCAL, + obj_desc->reference. + value, walk_state, + ACPI_CAST_INDIRECT_PTR + (struct + acpi_namespace_node, + &obj_desc->reference. + object)); +#endif + break; + + case AML_TYPE_METHOD_ARGUMENT: + + /* Arg ID (0-6) is (AML opcode - base AML_ARG_OP) */ + + obj_desc->reference.value = opcode - AML_ARG_OP; + obj_desc->reference.class = ACPI_REFCLASS_ARG; + +#ifndef ACPI_NO_METHOD_EXECUTION + status = acpi_ds_method_data_get_node(ACPI_REFCLASS_ARG, + obj_desc-> + reference.value, + walk_state, + ACPI_CAST_INDIRECT_PTR + (struct + acpi_namespace_node, + &obj_desc-> + reference. + object)); +#endif + break; + + default: /* Object name or Debug object */ + + switch (op->common.aml_opcode) { + case AML_INT_NAMEPATH_OP: + + /* Node was saved in Op */ + + obj_desc->reference.node = op->common.node; + obj_desc->reference.object = + op->common.node->object; + obj_desc->reference.class = ACPI_REFCLASS_NAME; + break; + + case AML_DEBUG_OP: + + obj_desc->reference.class = ACPI_REFCLASS_DEBUG; + break; + + default: + + ACPI_ERROR((AE_INFO, + "Unimplemented reference type for AML opcode: %4.4X", + opcode)); + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + break; + } + break; + + default: + + ACPI_ERROR((AE_INFO, "Unimplemented data type: %X", + ACPI_GET_OBJECT_TYPE(obj_desc))); + + status = AE_AML_OPERAND_TYPE; + break; + } + + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/dsopcode.c b/drivers/acpi/acpica/dsopcode.c new file mode 100644 index 000000000000..cb8a0d3109f0 --- /dev/null +++ b/drivers/acpi/acpica/dsopcode.c @@ -0,0 +1,1469 @@ +/****************************************************************************** + * + * Module Name: dsopcode - Dispatcher Op Region support and handling of + * "control" opcodes + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_DISPATCHER +ACPI_MODULE_NAME("dsopcode") + +/* Local prototypes */ +static acpi_status +acpi_ds_execute_arguments(struct acpi_namespace_node *node, + struct acpi_namespace_node *scope_node, + u32 aml_length, u8 * aml_start); + +static acpi_status +acpi_ds_init_buffer_field(u16 aml_opcode, + union acpi_operand_object *obj_desc, + union acpi_operand_object *buffer_desc, + union acpi_operand_object *offset_desc, + union acpi_operand_object *length_desc, + union acpi_operand_object *result_desc); + +/******************************************************************************* + * + * FUNCTION: acpi_ds_execute_arguments + * + * PARAMETERS: Node - Object NS node + * scope_node - Parent NS node + * aml_length - Length of executable AML + * aml_start - Pointer to the AML + * + * RETURN: Status. + * + * DESCRIPTION: Late (deferred) execution of region or field arguments + * + ******************************************************************************/ + +static acpi_status +acpi_ds_execute_arguments(struct acpi_namespace_node *node, + struct acpi_namespace_node *scope_node, + u32 aml_length, u8 * aml_start) +{ + acpi_status status; + union acpi_parse_object *op; + struct acpi_walk_state *walk_state; + + ACPI_FUNCTION_TRACE(ds_execute_arguments); + + /* + * Allocate a new parser op to be the root of the parsed tree + */ + op = acpi_ps_alloc_op(AML_INT_EVAL_SUBTREE_OP); + if (!op) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* Save the Node for use in acpi_ps_parse_aml */ + + op->common.node = scope_node; + + /* Create and initialize a new parser state */ + + walk_state = acpi_ds_create_walk_state(0, NULL, NULL, NULL); + if (!walk_state) { + status = AE_NO_MEMORY; + goto cleanup; + } + + status = acpi_ds_init_aml_walk(walk_state, op, NULL, aml_start, + aml_length, NULL, ACPI_IMODE_LOAD_PASS1); + if (ACPI_FAILURE(status)) { + acpi_ds_delete_walk_state(walk_state); + goto cleanup; + } + + /* Mark this parse as a deferred opcode */ + + walk_state->parse_flags = ACPI_PARSE_DEFERRED_OP; + walk_state->deferred_node = node; + + /* Pass1: Parse the entire declaration */ + + status = acpi_ps_parse_aml(walk_state); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + /* Get and init the Op created above */ + + op->common.node = node; + acpi_ps_delete_parse_tree(op); + + /* Evaluate the deferred arguments */ + + op = acpi_ps_alloc_op(AML_INT_EVAL_SUBTREE_OP); + if (!op) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + op->common.node = scope_node; + + /* Create and initialize a new parser state */ + + walk_state = acpi_ds_create_walk_state(0, NULL, NULL, NULL); + if (!walk_state) { + status = AE_NO_MEMORY; + goto cleanup; + } + + /* Execute the opcode and arguments */ + + status = acpi_ds_init_aml_walk(walk_state, op, NULL, aml_start, + aml_length, NULL, ACPI_IMODE_EXECUTE); + if (ACPI_FAILURE(status)) { + acpi_ds_delete_walk_state(walk_state); + goto cleanup; + } + + /* Mark this execution as a deferred opcode */ + + walk_state->deferred_node = node; + status = acpi_ps_parse_aml(walk_state); + + cleanup: + acpi_ps_delete_parse_tree(op); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_get_buffer_field_arguments + * + * PARAMETERS: obj_desc - A valid buffer_field object + * + * RETURN: Status. + * + * DESCRIPTION: Get buffer_field Buffer and Index. This implements the late + * evaluation of these field attributes. + * + ******************************************************************************/ + +acpi_status +acpi_ds_get_buffer_field_arguments(union acpi_operand_object *obj_desc) +{ + union acpi_operand_object *extra_desc; + struct acpi_namespace_node *node; + acpi_status status; + + ACPI_FUNCTION_TRACE_PTR(ds_get_buffer_field_arguments, obj_desc); + + if (obj_desc->common.flags & AOPOBJ_DATA_VALID) { + return_ACPI_STATUS(AE_OK); + } + + /* Get the AML pointer (method object) and buffer_field node */ + + extra_desc = acpi_ns_get_secondary_object(obj_desc); + node = obj_desc->buffer_field.node; + + ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname + (ACPI_TYPE_BUFFER_FIELD, node, NULL)); + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "[%4.4s] BufferField Arg Init\n", + acpi_ut_get_node_name(node))); + + /* Execute the AML code for the term_arg arguments */ + + status = acpi_ds_execute_arguments(node, acpi_ns_get_parent_node(node), + extra_desc->extra.aml_length, + extra_desc->extra.aml_start); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_get_bank_field_arguments + * + * PARAMETERS: obj_desc - A valid bank_field object + * + * RETURN: Status. + * + * DESCRIPTION: Get bank_field bank_value. This implements the late + * evaluation of these field attributes. + * + ******************************************************************************/ + +acpi_status +acpi_ds_get_bank_field_arguments(union acpi_operand_object *obj_desc) +{ + union acpi_operand_object *extra_desc; + struct acpi_namespace_node *node; + acpi_status status; + + ACPI_FUNCTION_TRACE_PTR(ds_get_bank_field_arguments, obj_desc); + + if (obj_desc->common.flags & AOPOBJ_DATA_VALID) { + return_ACPI_STATUS(AE_OK); + } + + /* Get the AML pointer (method object) and bank_field node */ + + extra_desc = acpi_ns_get_secondary_object(obj_desc); + node = obj_desc->bank_field.node; + + ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname + (ACPI_TYPE_LOCAL_BANK_FIELD, node, NULL)); + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "[%4.4s] BankField Arg Init\n", + acpi_ut_get_node_name(node))); + + /* Execute the AML code for the term_arg arguments */ + + status = acpi_ds_execute_arguments(node, acpi_ns_get_parent_node(node), + extra_desc->extra.aml_length, + extra_desc->extra.aml_start); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_get_buffer_arguments + * + * PARAMETERS: obj_desc - A valid Buffer object + * + * RETURN: Status. + * + * DESCRIPTION: Get Buffer length and initializer byte list. This implements + * the late evaluation of these attributes. + * + ******************************************************************************/ + +acpi_status acpi_ds_get_buffer_arguments(union acpi_operand_object *obj_desc) +{ + struct acpi_namespace_node *node; + acpi_status status; + + ACPI_FUNCTION_TRACE_PTR(ds_get_buffer_arguments, obj_desc); + + if (obj_desc->common.flags & AOPOBJ_DATA_VALID) { + return_ACPI_STATUS(AE_OK); + } + + /* Get the Buffer node */ + + node = obj_desc->buffer.node; + if (!node) { + ACPI_ERROR((AE_INFO, + "No pointer back to NS node in buffer obj %p", + obj_desc)); + return_ACPI_STATUS(AE_AML_INTERNAL); + } + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Buffer Arg Init\n")); + + /* Execute the AML code for the term_arg arguments */ + + status = acpi_ds_execute_arguments(node, node, + obj_desc->buffer.aml_length, + obj_desc->buffer.aml_start); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_get_package_arguments + * + * PARAMETERS: obj_desc - A valid Package object + * + * RETURN: Status. + * + * DESCRIPTION: Get Package length and initializer byte list. This implements + * the late evaluation of these attributes. + * + ******************************************************************************/ + +acpi_status acpi_ds_get_package_arguments(union acpi_operand_object *obj_desc) +{ + struct acpi_namespace_node *node; + acpi_status status; + + ACPI_FUNCTION_TRACE_PTR(ds_get_package_arguments, obj_desc); + + if (obj_desc->common.flags & AOPOBJ_DATA_VALID) { + return_ACPI_STATUS(AE_OK); + } + + /* Get the Package node */ + + node = obj_desc->package.node; + if (!node) { + ACPI_ERROR((AE_INFO, + "No pointer back to NS node in package %p", + obj_desc)); + return_ACPI_STATUS(AE_AML_INTERNAL); + } + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Package Arg Init\n")); + + /* Execute the AML code for the term_arg arguments */ + + status = acpi_ds_execute_arguments(node, node, + obj_desc->package.aml_length, + obj_desc->package.aml_start); + return_ACPI_STATUS(status); +} + +/***************************************************************************** + * + * FUNCTION: acpi_ds_get_region_arguments + * + * PARAMETERS: obj_desc - A valid region object + * + * RETURN: Status. + * + * DESCRIPTION: Get region address and length. This implements the late + * evaluation of these region attributes. + * + ****************************************************************************/ + +acpi_status acpi_ds_get_region_arguments(union acpi_operand_object *obj_desc) +{ + struct acpi_namespace_node *node; + acpi_status status; + union acpi_operand_object *extra_desc; + + ACPI_FUNCTION_TRACE_PTR(ds_get_region_arguments, obj_desc); + + if (obj_desc->region.flags & AOPOBJ_DATA_VALID) { + return_ACPI_STATUS(AE_OK); + } + + extra_desc = acpi_ns_get_secondary_object(obj_desc); + if (!extra_desc) { + return_ACPI_STATUS(AE_NOT_EXIST); + } + + /* Get the Region node */ + + node = obj_desc->region.node; + + ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname + (ACPI_TYPE_REGION, node, NULL)); + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "[%4.4s] OpRegion Arg Init at AML %p\n", + acpi_ut_get_node_name(node), + extra_desc->extra.aml_start)); + + /* Execute the argument AML */ + + status = acpi_ds_execute_arguments(node, acpi_ns_get_parent_node(node), + extra_desc->extra.aml_length, + extra_desc->extra.aml_start); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Validate the region address/length via the host OS */ + + status = acpi_os_validate_address(obj_desc->region.space_id, + obj_desc->region.address, + (acpi_size) obj_desc->region.length, + acpi_ut_get_node_name(node)); + + if (ACPI_FAILURE(status)) { + /* + * Invalid address/length. We will emit an error message and mark + * the region as invalid, so that it will cause an additional error if + * it is ever used. Then return AE_OK. + */ + ACPI_EXCEPTION((AE_INFO, status, + "During address validation of OpRegion [%4.4s]", + node->name.ascii)); + obj_desc->common.flags |= AOPOBJ_INVALID; + status = AE_OK; + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_initialize_region + * + * PARAMETERS: obj_handle - Region namespace node + * + * RETURN: Status + * + * DESCRIPTION: Front end to ev_initialize_region + * + ******************************************************************************/ + +acpi_status acpi_ds_initialize_region(acpi_handle obj_handle) +{ + union acpi_operand_object *obj_desc; + acpi_status status; + + obj_desc = acpi_ns_get_attached_object(obj_handle); + + /* Namespace is NOT locked */ + + status = acpi_ev_initialize_region(obj_desc, FALSE); + return (status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_init_buffer_field + * + * PARAMETERS: aml_opcode - create_xxx_field + * obj_desc - buffer_field object + * buffer_desc - Host Buffer + * offset_desc - Offset into buffer + * length_desc - Length of field (CREATE_FIELD_OP only) + * result_desc - Where to store the result + * + * RETURN: Status + * + * DESCRIPTION: Perform actual initialization of a buffer field + * + ******************************************************************************/ + +static acpi_status +acpi_ds_init_buffer_field(u16 aml_opcode, + union acpi_operand_object *obj_desc, + union acpi_operand_object *buffer_desc, + union acpi_operand_object *offset_desc, + union acpi_operand_object *length_desc, + union acpi_operand_object *result_desc) +{ + u32 offset; + u32 bit_offset; + u32 bit_count; + u8 field_flags; + acpi_status status; + + ACPI_FUNCTION_TRACE_PTR(ds_init_buffer_field, obj_desc); + + /* Host object must be a Buffer */ + + if (ACPI_GET_OBJECT_TYPE(buffer_desc) != ACPI_TYPE_BUFFER) { + ACPI_ERROR((AE_INFO, + "Target of Create Field is not a Buffer object - %s", + acpi_ut_get_object_type_name(buffer_desc))); + + status = AE_AML_OPERAND_TYPE; + goto cleanup; + } + + /* + * The last parameter to all of these opcodes (result_desc) started + * out as a name_string, and should therefore now be a NS node + * after resolution in acpi_ex_resolve_operands(). + */ + if (ACPI_GET_DESCRIPTOR_TYPE(result_desc) != ACPI_DESC_TYPE_NAMED) { + ACPI_ERROR((AE_INFO, + "(%s) destination not a NS Node [%s]", + acpi_ps_get_opcode_name(aml_opcode), + acpi_ut_get_descriptor_name(result_desc))); + + status = AE_AML_OPERAND_TYPE; + goto cleanup; + } + + offset = (u32) offset_desc->integer.value; + + /* + * Setup the Bit offsets and counts, according to the opcode + */ + switch (aml_opcode) { + case AML_CREATE_FIELD_OP: + + /* Offset is in bits, count is in bits */ + + field_flags = AML_FIELD_ACCESS_BYTE; + bit_offset = offset; + bit_count = (u32) length_desc->integer.value; + + /* Must have a valid (>0) bit count */ + + if (bit_count == 0) { + ACPI_ERROR((AE_INFO, + "Attempt to CreateField of length zero")); + status = AE_AML_OPERAND_VALUE; + goto cleanup; + } + break; + + case AML_CREATE_BIT_FIELD_OP: + + /* Offset is in bits, Field is one bit */ + + bit_offset = offset; + bit_count = 1; + field_flags = AML_FIELD_ACCESS_BYTE; + break; + + case AML_CREATE_BYTE_FIELD_OP: + + /* Offset is in bytes, field is one byte */ + + bit_offset = 8 * offset; + bit_count = 8; + field_flags = AML_FIELD_ACCESS_BYTE; + break; + + case AML_CREATE_WORD_FIELD_OP: + + /* Offset is in bytes, field is one word */ + + bit_offset = 8 * offset; + bit_count = 16; + field_flags = AML_FIELD_ACCESS_WORD; + break; + + case AML_CREATE_DWORD_FIELD_OP: + + /* Offset is in bytes, field is one dword */ + + bit_offset = 8 * offset; + bit_count = 32; + field_flags = AML_FIELD_ACCESS_DWORD; + break; + + case AML_CREATE_QWORD_FIELD_OP: + + /* Offset is in bytes, field is one qword */ + + bit_offset = 8 * offset; + bit_count = 64; + field_flags = AML_FIELD_ACCESS_QWORD; + break; + + default: + + ACPI_ERROR((AE_INFO, + "Unknown field creation opcode %02x", aml_opcode)); + status = AE_AML_BAD_OPCODE; + goto cleanup; + } + + /* Entire field must fit within the current length of the buffer */ + + if ((bit_offset + bit_count) > (8 * (u32) buffer_desc->buffer.length)) { + ACPI_ERROR((AE_INFO, + "Field [%4.4s] at %d exceeds Buffer [%4.4s] size %d (bits)", + acpi_ut_get_node_name(result_desc), + bit_offset + bit_count, + acpi_ut_get_node_name(buffer_desc->buffer.node), + 8 * (u32) buffer_desc->buffer.length)); + status = AE_AML_BUFFER_LIMIT; + goto cleanup; + } + + /* + * Initialize areas of the field object that are common to all fields + * For field_flags, use LOCK_RULE = 0 (NO_LOCK), + * UPDATE_RULE = 0 (UPDATE_PRESERVE) + */ + status = acpi_ex_prep_common_field_object(obj_desc, field_flags, 0, + bit_offset, bit_count); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + obj_desc->buffer_field.buffer_obj = buffer_desc; + + /* Reference count for buffer_desc inherits obj_desc count */ + + buffer_desc->common.reference_count = (u16) + (buffer_desc->common.reference_count + + obj_desc->common.reference_count); + + cleanup: + + /* Always delete the operands */ + + acpi_ut_remove_reference(offset_desc); + acpi_ut_remove_reference(buffer_desc); + + if (aml_opcode == AML_CREATE_FIELD_OP) { + acpi_ut_remove_reference(length_desc); + } + + /* On failure, delete the result descriptor */ + + if (ACPI_FAILURE(status)) { + acpi_ut_remove_reference(result_desc); /* Result descriptor */ + } else { + /* Now the address and length are valid for this buffer_field */ + + obj_desc->buffer_field.flags |= AOPOBJ_DATA_VALID; + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_eval_buffer_field_operands + * + * PARAMETERS: walk_state - Current walk + * Op - A valid buffer_field Op object + * + * RETURN: Status + * + * DESCRIPTION: Get buffer_field Buffer and Index + * Called from acpi_ds_exec_end_op during buffer_field parse tree walk + * + ******************************************************************************/ + +acpi_status +acpi_ds_eval_buffer_field_operands(struct acpi_walk_state *walk_state, + union acpi_parse_object *op) +{ + acpi_status status; + union acpi_operand_object *obj_desc; + struct acpi_namespace_node *node; + union acpi_parse_object *next_op; + + ACPI_FUNCTION_TRACE_PTR(ds_eval_buffer_field_operands, op); + + /* + * This is where we evaluate the address and length fields of the + * create_xxx_field declaration + */ + node = op->common.node; + + /* next_op points to the op that holds the Buffer */ + + next_op = op->common.value.arg; + + /* Evaluate/create the address and length operands */ + + status = acpi_ds_create_operands(walk_state, next_op); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + obj_desc = acpi_ns_get_attached_object(node); + if (!obj_desc) { + return_ACPI_STATUS(AE_NOT_EXIST); + } + + /* Resolve the operands */ + + status = acpi_ex_resolve_operands(op->common.aml_opcode, + ACPI_WALK_OPERANDS, walk_state); + if (ACPI_FAILURE(status)) { + ACPI_ERROR((AE_INFO, "(%s) bad operand(s) (%X)", + acpi_ps_get_opcode_name(op->common.aml_opcode), + status)); + + return_ACPI_STATUS(status); + } + + /* Initialize the Buffer Field */ + + if (op->common.aml_opcode == AML_CREATE_FIELD_OP) { + + /* NOTE: Slightly different operands for this opcode */ + + status = + acpi_ds_init_buffer_field(op->common.aml_opcode, obj_desc, + walk_state->operands[0], + walk_state->operands[1], + walk_state->operands[2], + walk_state->operands[3]); + } else { + /* All other, create_xxx_field opcodes */ + + status = + acpi_ds_init_buffer_field(op->common.aml_opcode, obj_desc, + walk_state->operands[0], + walk_state->operands[1], NULL, + walk_state->operands[2]); + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_eval_region_operands + * + * PARAMETERS: walk_state - Current walk + * Op - A valid region Op object + * + * RETURN: Status + * + * DESCRIPTION: Get region address and length + * Called from acpi_ds_exec_end_op during op_region parse tree walk + * + ******************************************************************************/ + +acpi_status +acpi_ds_eval_region_operands(struct acpi_walk_state *walk_state, + union acpi_parse_object *op) +{ + acpi_status status; + union acpi_operand_object *obj_desc; + union acpi_operand_object *operand_desc; + struct acpi_namespace_node *node; + union acpi_parse_object *next_op; + + ACPI_FUNCTION_TRACE_PTR(ds_eval_region_operands, op); + + /* + * This is where we evaluate the address and length fields of the + * op_region declaration + */ + node = op->common.node; + + /* next_op points to the op that holds the space_iD */ + + next_op = op->common.value.arg; + + /* next_op points to address op */ + + next_op = next_op->common.next; + + /* Evaluate/create the address and length operands */ + + status = acpi_ds_create_operands(walk_state, next_op); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Resolve the length and address operands to numbers */ + + status = acpi_ex_resolve_operands(op->common.aml_opcode, + ACPI_WALK_OPERANDS, walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + obj_desc = acpi_ns_get_attached_object(node); + if (!obj_desc) { + return_ACPI_STATUS(AE_NOT_EXIST); + } + + /* + * Get the length operand and save it + * (at Top of stack) + */ + operand_desc = walk_state->operands[walk_state->num_operands - 1]; + + obj_desc->region.length = (u32) operand_desc->integer.value; + acpi_ut_remove_reference(operand_desc); + + /* + * Get the address and save it + * (at top of stack - 1) + */ + operand_desc = walk_state->operands[walk_state->num_operands - 2]; + + obj_desc->region.address = (acpi_physical_address) + operand_desc->integer.value; + acpi_ut_remove_reference(operand_desc); + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n", + obj_desc, + ACPI_FORMAT_NATIVE_UINT(obj_desc->region.address), + obj_desc->region.length)); + + /* Now the address and length are valid for this opregion */ + + obj_desc->region.flags |= AOPOBJ_DATA_VALID; + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_eval_table_region_operands + * + * PARAMETERS: walk_state - Current walk + * Op - A valid region Op object + * + * RETURN: Status + * + * DESCRIPTION: Get region address and length + * Called from acpi_ds_exec_end_op during data_table_region parse tree walk + * + ******************************************************************************/ + +acpi_status +acpi_ds_eval_table_region_operands(struct acpi_walk_state *walk_state, + union acpi_parse_object *op) +{ + acpi_status status; + union acpi_operand_object *obj_desc; + union acpi_operand_object **operand; + struct acpi_namespace_node *node; + union acpi_parse_object *next_op; + u32 table_index; + struct acpi_table_header *table; + + ACPI_FUNCTION_TRACE_PTR(ds_eval_table_region_operands, op); + + /* + * This is where we evaluate the signature_string and oem_iDString + * and oem_table_iDString of the data_table_region declaration + */ + node = op->common.node; + + /* next_op points to signature_string op */ + + next_op = op->common.value.arg; + + /* + * Evaluate/create the signature_string and oem_iDString + * and oem_table_iDString operands + */ + status = acpi_ds_create_operands(walk_state, next_op); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * Resolve the signature_string and oem_iDString + * and oem_table_iDString operands + */ + status = acpi_ex_resolve_operands(op->common.aml_opcode, + ACPI_WALK_OPERANDS, walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + operand = &walk_state->operands[0]; + + /* Find the ACPI table */ + + status = acpi_tb_find_table(operand[0]->string.pointer, + operand[1]->string.pointer, + operand[2]->string.pointer, &table_index); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + acpi_ut_remove_reference(operand[0]); + acpi_ut_remove_reference(operand[1]); + acpi_ut_remove_reference(operand[2]); + + status = acpi_get_table_by_index(table_index, &table); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + obj_desc = acpi_ns_get_attached_object(node); + if (!obj_desc) { + return_ACPI_STATUS(AE_NOT_EXIST); + } + + obj_desc->region.address = + (acpi_physical_address) ACPI_TO_INTEGER(table); + obj_desc->region.length = table->length; + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n", + obj_desc, + ACPI_FORMAT_NATIVE_UINT(obj_desc->region.address), + obj_desc->region.length)); + + /* Now the address and length are valid for this opregion */ + + obj_desc->region.flags |= AOPOBJ_DATA_VALID; + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_eval_data_object_operands + * + * PARAMETERS: walk_state - Current walk + * Op - A valid data_object Op object + * obj_desc - data_object + * + * RETURN: Status + * + * DESCRIPTION: Get the operands and complete the following data object types: + * Buffer, Package. + * + ******************************************************************************/ + +acpi_status +acpi_ds_eval_data_object_operands(struct acpi_walk_state *walk_state, + union acpi_parse_object *op, + union acpi_operand_object *obj_desc) +{ + acpi_status status; + union acpi_operand_object *arg_desc; + u32 length; + + ACPI_FUNCTION_TRACE(ds_eval_data_object_operands); + + /* The first operand (for all of these data objects) is the length */ + + /* + * Set proper index into operand stack for acpi_ds_obj_stack_push + * invoked inside acpi_ds_create_operand. + */ + walk_state->operand_index = walk_state->num_operands; + + status = acpi_ds_create_operand(walk_state, op->common.value.arg, 1); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + status = acpi_ex_resolve_operands(walk_state->opcode, + &(walk_state-> + operands[walk_state->num_operands - + 1]), walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Extract length operand */ + + arg_desc = walk_state->operands[walk_state->num_operands - 1]; + length = (u32) arg_desc->integer.value; + + /* Cleanup for length operand */ + + status = acpi_ds_obj_stack_pop(1, walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + acpi_ut_remove_reference(arg_desc); + + /* + * Create the actual data object + */ + switch (op->common.aml_opcode) { + case AML_BUFFER_OP: + + status = + acpi_ds_build_internal_buffer_obj(walk_state, op, length, + &obj_desc); + break; + + case AML_PACKAGE_OP: + case AML_VAR_PACKAGE_OP: + + status = + acpi_ds_build_internal_package_obj(walk_state, op, length, + &obj_desc); + break; + + default: + return_ACPI_STATUS(AE_AML_BAD_OPCODE); + } + + if (ACPI_SUCCESS(status)) { + /* + * Return the object in the walk_state, unless the parent is a package - + * in this case, the return object will be stored in the parse tree + * for the package. + */ + if ((!op->common.parent) || + ((op->common.parent->common.aml_opcode != AML_PACKAGE_OP) && + (op->common.parent->common.aml_opcode != + AML_VAR_PACKAGE_OP) + && (op->common.parent->common.aml_opcode != AML_NAME_OP))) { + walk_state->result_obj = obj_desc; + } + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_eval_bank_field_operands + * + * PARAMETERS: walk_state - Current walk + * Op - A valid bank_field Op object + * + * RETURN: Status + * + * DESCRIPTION: Get bank_field bank_value + * Called from acpi_ds_exec_end_op during bank_field parse tree walk + * + ******************************************************************************/ + +acpi_status +acpi_ds_eval_bank_field_operands(struct acpi_walk_state *walk_state, + union acpi_parse_object *op) +{ + acpi_status status; + union acpi_operand_object *obj_desc; + union acpi_operand_object *operand_desc; + struct acpi_namespace_node *node; + union acpi_parse_object *next_op; + union acpi_parse_object *arg; + + ACPI_FUNCTION_TRACE_PTR(ds_eval_bank_field_operands, op); + + /* + * This is where we evaluate the bank_value field of the + * bank_field declaration + */ + + /* next_op points to the op that holds the Region */ + + next_op = op->common.value.arg; + + /* next_op points to the op that holds the Bank Register */ + + next_op = next_op->common.next; + + /* next_op points to the op that holds the Bank Value */ + + next_op = next_op->common.next; + + /* + * Set proper index into operand stack for acpi_ds_obj_stack_push + * invoked inside acpi_ds_create_operand. + * + * We use walk_state->Operands[0] to store the evaluated bank_value + */ + walk_state->operand_index = 0; + + status = acpi_ds_create_operand(walk_state, next_op, 0); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + status = acpi_ex_resolve_to_value(&walk_state->operands[0], walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + ACPI_DUMP_OPERANDS(ACPI_WALK_OPERANDS, + acpi_ps_get_opcode_name(op->common.aml_opcode), 1); + /* + * Get the bank_value operand and save it + * (at Top of stack) + */ + operand_desc = walk_state->operands[0]; + + /* Arg points to the start Bank Field */ + + arg = acpi_ps_get_arg(op, 4); + while (arg) { + + /* Ignore OFFSET and ACCESSAS terms here */ + + if (arg->common.aml_opcode == AML_INT_NAMEDFIELD_OP) { + node = arg->common.node; + + obj_desc = acpi_ns_get_attached_object(node); + if (!obj_desc) { + return_ACPI_STATUS(AE_NOT_EXIST); + } + + obj_desc->bank_field.value = + (u32) operand_desc->integer.value; + } + + /* Move to next field in the list */ + + arg = arg->common.next; + } + + acpi_ut_remove_reference(operand_desc); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_exec_begin_control_op + * + * PARAMETERS: walk_list - The list that owns the walk stack + * Op - The control Op + * + * RETURN: Status + * + * DESCRIPTION: Handles all control ops encountered during control method + * execution. + * + ******************************************************************************/ + +acpi_status +acpi_ds_exec_begin_control_op(struct acpi_walk_state *walk_state, + union acpi_parse_object *op) +{ + acpi_status status = AE_OK; + union acpi_generic_state *control_state; + + ACPI_FUNCTION_NAME(ds_exec_begin_control_op); + + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p Opcode=%2.2X State=%p\n", op, + op->common.aml_opcode, walk_state)); + + switch (op->common.aml_opcode) { + case AML_WHILE_OP: + + /* + * If this is an additional iteration of a while loop, continue. + * There is no need to allocate a new control state. + */ + if (walk_state->control_state) { + if (walk_state->control_state->control.aml_predicate_start + == (walk_state->parser_state.aml - 1)) { + + /* Reset the state to start-of-loop */ + + walk_state->control_state->common.state = + ACPI_CONTROL_CONDITIONAL_EXECUTING; + break; + } + } + + /*lint -fallthrough */ + + case AML_IF_OP: + + /* + * IF/WHILE: Create a new control state to manage these + * constructs. We need to manage these as a stack, in order + * to handle nesting. + */ + control_state = acpi_ut_create_control_state(); + if (!control_state) { + status = AE_NO_MEMORY; + break; + } + /* + * Save a pointer to the predicate for multiple executions + * of a loop + */ + control_state->control.aml_predicate_start = + walk_state->parser_state.aml - 1; + control_state->control.package_end = + walk_state->parser_state.pkg_end; + control_state->control.opcode = op->common.aml_opcode; + + /* Push the control state on this walk's control stack */ + + acpi_ut_push_generic_state(&walk_state->control_state, + control_state); + break; + + case AML_ELSE_OP: + + /* Predicate is in the state object */ + /* If predicate is true, the IF was executed, ignore ELSE part */ + + if (walk_state->last_predicate) { + status = AE_CTRL_TRUE; + } + + break; + + case AML_RETURN_OP: + + break; + + default: + break; + } + + return (status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_exec_end_control_op + * + * PARAMETERS: walk_list - The list that owns the walk stack + * Op - The control Op + * + * RETURN: Status + * + * DESCRIPTION: Handles all control ops encountered during control method + * execution. + * + ******************************************************************************/ + +acpi_status +acpi_ds_exec_end_control_op(struct acpi_walk_state * walk_state, + union acpi_parse_object * op) +{ + acpi_status status = AE_OK; + union acpi_generic_state *control_state; + + ACPI_FUNCTION_NAME(ds_exec_end_control_op); + + switch (op->common.aml_opcode) { + case AML_IF_OP: + + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "[IF_OP] Op=%p\n", op)); + + /* + * Save the result of the predicate in case there is an + * ELSE to come + */ + walk_state->last_predicate = + (u8) walk_state->control_state->common.value; + + /* + * Pop the control state that was created at the start + * of the IF and free it + */ + control_state = + acpi_ut_pop_generic_state(&walk_state->control_state); + acpi_ut_delete_generic_state(control_state); + break; + + case AML_ELSE_OP: + + break; + + case AML_WHILE_OP: + + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "[WHILE_OP] Op=%p\n", op)); + + control_state = walk_state->control_state; + if (control_state->common.value) { + + /* Predicate was true, the body of the loop was just executed */ + + /* + * This loop counter mechanism allows the interpreter to escape + * possibly infinite loops. This can occur in poorly written AML + * when the hardware does not respond within a while loop and the + * loop does not implement a timeout. + */ + control_state->control.loop_count++; + if (control_state->control.loop_count > + ACPI_MAX_LOOP_ITERATIONS) { + status = AE_AML_INFINITE_LOOP; + break; + } + + /* + * Go back and evaluate the predicate and maybe execute the loop + * another time + */ + status = AE_CTRL_PENDING; + walk_state->aml_last_while = + control_state->control.aml_predicate_start; + break; + } + + /* Predicate was false, terminate this while loop */ + + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "[WHILE_OP] termination! Op=%p\n", op)); + + /* Pop this control state and free it */ + + control_state = + acpi_ut_pop_generic_state(&walk_state->control_state); + acpi_ut_delete_generic_state(control_state); + break; + + case AML_RETURN_OP: + + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "[RETURN_OP] Op=%p Arg=%p\n", op, + op->common.value.arg)); + + /* + * One optional operand -- the return value + * It can be either an immediate operand or a result that + * has been bubbled up the tree + */ + if (op->common.value.arg) { + + /* Since we have a real Return(), delete any implicit return */ + + acpi_ds_clear_implicit_return(walk_state); + + /* Return statement has an immediate operand */ + + status = + acpi_ds_create_operands(walk_state, + op->common.value.arg); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* + * If value being returned is a Reference (such as + * an arg or local), resolve it now because it may + * cease to exist at the end of the method. + */ + status = + acpi_ex_resolve_to_value(&walk_state->operands[0], + walk_state); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* + * Get the return value and save as the last result + * value. This is the only place where walk_state->return_desc + * is set to anything other than zero! + */ + walk_state->return_desc = walk_state->operands[0]; + } else if (walk_state->result_count) { + + /* Since we have a real Return(), delete any implicit return */ + + acpi_ds_clear_implicit_return(walk_state); + + /* + * The return value has come from a previous calculation. + * + * If value being returned is a Reference (such as + * an arg or local), resolve it now because it may + * cease to exist at the end of the method. + * + * Allow references created by the Index operator to return unchanged. + */ + if ((ACPI_GET_DESCRIPTOR_TYPE + (walk_state->results->results.obj_desc[0]) == + ACPI_DESC_TYPE_OPERAND) + && + (ACPI_GET_OBJECT_TYPE + (walk_state->results->results.obj_desc[0]) == + ACPI_TYPE_LOCAL_REFERENCE) + && ((walk_state->results->results.obj_desc[0])-> + reference.class != ACPI_REFCLASS_INDEX)) { + status = + acpi_ex_resolve_to_value(&walk_state-> + results->results. + obj_desc[0], + walk_state); + if (ACPI_FAILURE(status)) { + return (status); + } + } + + walk_state->return_desc = + walk_state->results->results.obj_desc[0]; + } else { + /* No return operand */ + + if (walk_state->num_operands) { + acpi_ut_remove_reference(walk_state-> + operands[0]); + } + + walk_state->operands[0] = NULL; + walk_state->num_operands = 0; + walk_state->return_desc = NULL; + } + + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "Completed RETURN_OP State=%p, RetVal=%p\n", + walk_state, walk_state->return_desc)); + + /* End the control method execution right now */ + + status = AE_CTRL_TERMINATE; + break; + + case AML_NOOP_OP: + + /* Just do nothing! */ + break; + + case AML_BREAK_POINT_OP: + + /* Call up to the OS service layer to handle this */ + + status = + acpi_os_signal(ACPI_SIGNAL_BREAKPOINT, + "Executed AML Breakpoint opcode"); + + /* If and when it returns, all done. */ + + break; + + case AML_BREAK_OP: + case AML_CONTINUE_OP: /* ACPI 2.0 */ + + /* Pop and delete control states until we find a while */ + + while (walk_state->control_state && + (walk_state->control_state->control.opcode != + AML_WHILE_OP)) { + control_state = + acpi_ut_pop_generic_state(&walk_state-> + control_state); + acpi_ut_delete_generic_state(control_state); + } + + /* No while found? */ + + if (!walk_state->control_state) { + return (AE_AML_NO_WHILE); + } + + /* Was: walk_state->aml_last_while = walk_state->control_state->Control.aml_predicate_start; */ + + walk_state->aml_last_while = + walk_state->control_state->control.package_end; + + /* Return status depending on opcode */ + + if (op->common.aml_opcode == AML_BREAK_OP) { + status = AE_CTRL_BREAK; + } else { + status = AE_CTRL_CONTINUE; + } + break; + + default: + + ACPI_ERROR((AE_INFO, "Unknown control opcode=%X Op=%p", + op->common.aml_opcode, op)); + + status = AE_AML_BAD_OPCODE; + break; + } + + return (status); +} diff --git a/drivers/acpi/acpica/dsutils.c b/drivers/acpi/acpica/dsutils.c new file mode 100644 index 000000000000..9c88846ca2ce --- /dev/null +++ b/drivers/acpi/acpica/dsutils.c @@ -0,0 +1,869 @@ +/******************************************************************************* + * + * Module Name: dsutils - Dispatcher utilities + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_DISPATCHER +ACPI_MODULE_NAME("dsutils") + +/******************************************************************************* + * + * FUNCTION: acpi_ds_clear_implicit_return + * + * PARAMETERS: walk_state - Current State + * + * RETURN: None. + * + * DESCRIPTION: Clear and remove a reference on an implicit return value. Used + * to delete "stale" return values (if enabled, the return value + * from every operator is saved at least momentarily, in case the + * parent method exits.) + * + ******************************************************************************/ +void acpi_ds_clear_implicit_return(struct acpi_walk_state *walk_state) +{ + ACPI_FUNCTION_NAME(ds_clear_implicit_return); + + /* + * Slack must be enabled for this feature + */ + if (!acpi_gbl_enable_interpreter_slack) { + return; + } + + if (walk_state->implicit_return_obj) { + /* + * Delete any "stale" implicit return. However, in + * complex statements, the implicit return value can be + * bubbled up several levels. + */ + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "Removing reference on stale implicit return obj %p\n", + walk_state->implicit_return_obj)); + + acpi_ut_remove_reference(walk_state->implicit_return_obj); + walk_state->implicit_return_obj = NULL; + } +} + +#ifndef ACPI_NO_METHOD_EXECUTION +/******************************************************************************* + * + * FUNCTION: acpi_ds_do_implicit_return + * + * PARAMETERS: return_desc - The return value + * walk_state - Current State + * add_reference - True if a reference should be added to the + * return object + * + * RETURN: TRUE if implicit return enabled, FALSE otherwise + * + * DESCRIPTION: Implements the optional "implicit return". We save the result + * of every ASL operator and control method invocation in case the + * parent method exit. Before storing a new return value, we + * delete the previous return value. + * + ******************************************************************************/ + +u8 +acpi_ds_do_implicit_return(union acpi_operand_object *return_desc, + struct acpi_walk_state *walk_state, u8 add_reference) +{ + ACPI_FUNCTION_NAME(ds_do_implicit_return); + + /* + * Slack must be enabled for this feature, and we must + * have a valid return object + */ + if ((!acpi_gbl_enable_interpreter_slack) || (!return_desc)) { + return (FALSE); + } + + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "Result %p will be implicitly returned; Prev=%p\n", + return_desc, walk_state->implicit_return_obj)); + + /* + * Delete any "stale" implicit return value first. However, in + * complex statements, the implicit return value can be + * bubbled up several levels, so we don't clear the value if it + * is the same as the return_desc. + */ + if (walk_state->implicit_return_obj) { + if (walk_state->implicit_return_obj == return_desc) { + return (TRUE); + } + acpi_ds_clear_implicit_return(walk_state); + } + + /* Save the implicit return value, add a reference if requested */ + + walk_state->implicit_return_obj = return_desc; + if (add_reference) { + acpi_ut_add_reference(return_desc); + } + + return (TRUE); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_is_result_used + * + * PARAMETERS: Op - Current Op + * walk_state - Current State + * + * RETURN: TRUE if result is used, FALSE otherwise + * + * DESCRIPTION: Check if a result object will be used by the parent + * + ******************************************************************************/ + +u8 +acpi_ds_is_result_used(union acpi_parse_object * op, + struct acpi_walk_state * walk_state) +{ + const struct acpi_opcode_info *parent_info; + + ACPI_FUNCTION_TRACE_PTR(ds_is_result_used, op); + + /* Must have both an Op and a Result Object */ + + if (!op) { + ACPI_ERROR((AE_INFO, "Null Op")); + return_UINT8(TRUE); + } + + /* + * We know that this operator is not a + * Return() operator (would not come here.) The following code is the + * optional support for a so-called "implicit return". Some AML code + * assumes that the last value of the method is "implicitly" returned + * to the caller. Just save the last result as the return value. + * NOTE: this is optional because the ASL language does not actually + * support this behavior. + */ + (void)acpi_ds_do_implicit_return(walk_state->result_obj, walk_state, + TRUE); + + /* + * Now determine if the parent will use the result + * + * If there is no parent, or the parent is a scope_op, we are executing + * at the method level. An executing method typically has no parent, + * since each method is parsed separately. A method invoked externally + * via execute_control_method has a scope_op as the parent. + */ + if ((!op->common.parent) || + (op->common.parent->common.aml_opcode == AML_SCOPE_OP)) { + + /* No parent, the return value cannot possibly be used */ + + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "At Method level, result of [%s] not used\n", + acpi_ps_get_opcode_name(op->common. + aml_opcode))); + return_UINT8(FALSE); + } + + /* Get info on the parent. The root_op is AML_SCOPE */ + + parent_info = + acpi_ps_get_opcode_info(op->common.parent->common.aml_opcode); + if (parent_info->class == AML_CLASS_UNKNOWN) { + ACPI_ERROR((AE_INFO, "Unknown parent opcode Op=%p", op)); + return_UINT8(FALSE); + } + + /* + * Decide what to do with the result based on the parent. If + * the parent opcode will not use the result, delete the object. + * Otherwise leave it as is, it will be deleted when it is used + * as an operand later. + */ + switch (parent_info->class) { + case AML_CLASS_CONTROL: + + switch (op->common.parent->common.aml_opcode) { + case AML_RETURN_OP: + + /* Never delete the return value associated with a return opcode */ + + goto result_used; + + case AML_IF_OP: + case AML_WHILE_OP: + + /* + * If we are executing the predicate AND this is the predicate op, + * we will use the return value + */ + if ((walk_state->control_state->common.state == + ACPI_CONTROL_PREDICATE_EXECUTING) + && (walk_state->control_state->control. + predicate_op == op)) { + goto result_used; + } + break; + + default: + /* Ignore other control opcodes */ + break; + } + + /* The general control opcode returns no result */ + + goto result_not_used; + + case AML_CLASS_CREATE: + + /* + * These opcodes allow term_arg(s) as operands and therefore + * the operands can be method calls. The result is used. + */ + goto result_used; + + case AML_CLASS_NAMED_OBJECT: + + if ((op->common.parent->common.aml_opcode == AML_REGION_OP) || + (op->common.parent->common.aml_opcode == AML_DATA_REGION_OP) + || (op->common.parent->common.aml_opcode == AML_PACKAGE_OP) + || (op->common.parent->common.aml_opcode == + AML_VAR_PACKAGE_OP) + || (op->common.parent->common.aml_opcode == AML_BUFFER_OP) + || (op->common.parent->common.aml_opcode == + AML_INT_EVAL_SUBTREE_OP) + || (op->common.parent->common.aml_opcode == + AML_BANK_FIELD_OP)) { + /* + * These opcodes allow term_arg(s) as operands and therefore + * the operands can be method calls. The result is used. + */ + goto result_used; + } + + goto result_not_used; + + default: + + /* + * In all other cases. the parent will actually use the return + * object, so keep it. + */ + goto result_used; + } + + result_used: + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "Result of [%s] used by Parent [%s] Op=%p\n", + acpi_ps_get_opcode_name(op->common.aml_opcode), + acpi_ps_get_opcode_name(op->common.parent->common. + aml_opcode), op)); + + return_UINT8(TRUE); + + result_not_used: + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "Result of [%s] not used by Parent [%s] Op=%p\n", + acpi_ps_get_opcode_name(op->common.aml_opcode), + acpi_ps_get_opcode_name(op->common.parent->common. + aml_opcode), op)); + + return_UINT8(FALSE); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_delete_result_if_not_used + * + * PARAMETERS: Op - Current parse Op + * result_obj - Result of the operation + * walk_state - Current state + * + * RETURN: Status + * + * DESCRIPTION: Used after interpretation of an opcode. If there is an internal + * result descriptor, check if the parent opcode will actually use + * this result. If not, delete the result now so that it will + * not become orphaned. + * + ******************************************************************************/ + +void +acpi_ds_delete_result_if_not_used(union acpi_parse_object *op, + union acpi_operand_object *result_obj, + struct acpi_walk_state *walk_state) +{ + union acpi_operand_object *obj_desc; + acpi_status status; + + ACPI_FUNCTION_TRACE_PTR(ds_delete_result_if_not_used, result_obj); + + if (!op) { + ACPI_ERROR((AE_INFO, "Null Op")); + return_VOID; + } + + if (!result_obj) { + return_VOID; + } + + if (!acpi_ds_is_result_used(op, walk_state)) { + + /* Must pop the result stack (obj_desc should be equal to result_obj) */ + + status = acpi_ds_result_pop(&obj_desc, walk_state); + if (ACPI_SUCCESS(status)) { + acpi_ut_remove_reference(result_obj); + } + } + + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_resolve_operands + * + * PARAMETERS: walk_state - Current walk state with operands on stack + * + * RETURN: Status + * + * DESCRIPTION: Resolve all operands to their values. Used to prepare + * arguments to a control method invocation (a call from one + * method to another.) + * + ******************************************************************************/ + +acpi_status acpi_ds_resolve_operands(struct acpi_walk_state *walk_state) +{ + u32 i; + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE_PTR(ds_resolve_operands, walk_state); + + /* + * Attempt to resolve each of the valid operands + * Method arguments are passed by reference, not by value. This means + * that the actual objects are passed, not copies of the objects. + */ + for (i = 0; i < walk_state->num_operands; i++) { + status = + acpi_ex_resolve_to_value(&walk_state->operands[i], + walk_state); + if (ACPI_FAILURE(status)) { + break; + } + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_clear_operands + * + * PARAMETERS: walk_state - Current walk state with operands on stack + * + * RETURN: None + * + * DESCRIPTION: Clear all operands on the current walk state operand stack. + * + ******************************************************************************/ + +void acpi_ds_clear_operands(struct acpi_walk_state *walk_state) +{ + u32 i; + + ACPI_FUNCTION_TRACE_PTR(ds_clear_operands, walk_state); + + /* Remove a reference on each operand on the stack */ + + for (i = 0; i < walk_state->num_operands; i++) { + /* + * Remove a reference to all operands, including both + * "Arguments" and "Targets". + */ + acpi_ut_remove_reference(walk_state->operands[i]); + walk_state->operands[i] = NULL; + } + + walk_state->num_operands = 0; + return_VOID; +} +#endif + +/******************************************************************************* + * + * FUNCTION: acpi_ds_create_operand + * + * PARAMETERS: walk_state - Current walk state + * Arg - Parse object for the argument + * arg_index - Which argument (zero based) + * + * RETURN: Status + * + * DESCRIPTION: Translate a parse tree object that is an argument to an AML + * opcode to the equivalent interpreter object. This may include + * looking up a name or entering a new name into the internal + * namespace. + * + ******************************************************************************/ + +acpi_status +acpi_ds_create_operand(struct acpi_walk_state *walk_state, + union acpi_parse_object *arg, u32 arg_index) +{ + acpi_status status = AE_OK; + char *name_string; + u32 name_length; + union acpi_operand_object *obj_desc; + union acpi_parse_object *parent_op; + u16 opcode; + acpi_interpreter_mode interpreter_mode; + const struct acpi_opcode_info *op_info; + + ACPI_FUNCTION_TRACE_PTR(ds_create_operand, arg); + + /* A valid name must be looked up in the namespace */ + + if ((arg->common.aml_opcode == AML_INT_NAMEPATH_OP) && + (arg->common.value.string) && + !(arg->common.flags & ACPI_PARSEOP_IN_STACK)) { + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Getting a name: Arg=%p\n", + arg)); + + /* Get the entire name string from the AML stream */ + + status = + acpi_ex_get_name_string(ACPI_TYPE_ANY, + arg->common.value.buffer, + &name_string, &name_length); + + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* All prefixes have been handled, and the name is in name_string */ + + /* + * Special handling for buffer_field declarations. This is a deferred + * opcode that unfortunately defines the field name as the last + * parameter instead of the first. We get here when we are performing + * the deferred execution, so the actual name of the field is already + * in the namespace. We don't want to attempt to look it up again + * because we may be executing in a different scope than where the + * actual opcode exists. + */ + if ((walk_state->deferred_node) && + (walk_state->deferred_node->type == ACPI_TYPE_BUFFER_FIELD) + && (arg_index == + (u32) ((walk_state->opcode == + AML_CREATE_FIELD_OP) ? 3 : 2))) { + obj_desc = + ACPI_CAST_PTR(union acpi_operand_object, + walk_state->deferred_node); + status = AE_OK; + } else { /* All other opcodes */ + + /* + * Differentiate between a namespace "create" operation + * versus a "lookup" operation (IMODE_LOAD_PASS2 vs. + * IMODE_EXECUTE) in order to support the creation of + * namespace objects during the execution of control methods. + */ + parent_op = arg->common.parent; + op_info = + acpi_ps_get_opcode_info(parent_op->common. + aml_opcode); + if ((op_info->flags & AML_NSNODE) + && (parent_op->common.aml_opcode != + AML_INT_METHODCALL_OP) + && (parent_op->common.aml_opcode != AML_REGION_OP) + && (parent_op->common.aml_opcode != + AML_INT_NAMEPATH_OP)) { + + /* Enter name into namespace if not found */ + + interpreter_mode = ACPI_IMODE_LOAD_PASS2; + } else { + /* Return a failure if name not found */ + + interpreter_mode = ACPI_IMODE_EXECUTE; + } + + status = + acpi_ns_lookup(walk_state->scope_info, name_string, + ACPI_TYPE_ANY, interpreter_mode, + ACPI_NS_SEARCH_PARENT | + ACPI_NS_DONT_OPEN_SCOPE, walk_state, + ACPI_CAST_INDIRECT_PTR(struct + acpi_namespace_node, + &obj_desc)); + /* + * The only case where we pass through (ignore) a NOT_FOUND + * error is for the cond_ref_of opcode. + */ + if (status == AE_NOT_FOUND) { + if (parent_op->common.aml_opcode == + AML_COND_REF_OF_OP) { + /* + * For the Conditional Reference op, it's OK if + * the name is not found; We just need a way to + * indicate this to the interpreter, set the + * object to the root + */ + obj_desc = ACPI_CAST_PTR(union + acpi_operand_object, + acpi_gbl_root_node); + status = AE_OK; + } else { + /* + * We just plain didn't find it -- which is a + * very serious error at this point + */ + status = AE_AML_NAME_NOT_FOUND; + } + } + + if (ACPI_FAILURE(status)) { + ACPI_ERROR_NAMESPACE(name_string, status); + } + } + + /* Free the namestring created above */ + + ACPI_FREE(name_string); + + /* Check status from the lookup */ + + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Put the resulting object onto the current object stack */ + + status = acpi_ds_obj_stack_push(obj_desc, walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + ACPI_DEBUGGER_EXEC(acpi_db_display_argument_object + (obj_desc, walk_state)); + } else { + /* Check for null name case */ + + if ((arg->common.aml_opcode == AML_INT_NAMEPATH_OP) && + !(arg->common.flags & ACPI_PARSEOP_IN_STACK)) { + /* + * If the name is null, this means that this is an + * optional result parameter that was not specified + * in the original ASL. Create a Zero Constant for a + * placeholder. (Store to a constant is a Noop.) + */ + opcode = AML_ZERO_OP; /* Has no arguments! */ + + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "Null namepath: Arg=%p\n", arg)); + } else { + opcode = arg->common.aml_opcode; + } + + /* Get the object type of the argument */ + + op_info = acpi_ps_get_opcode_info(opcode); + if (op_info->object_type == ACPI_TYPE_INVALID) { + return_ACPI_STATUS(AE_NOT_IMPLEMENTED); + } + + if ((op_info->flags & AML_HAS_RETVAL) + || (arg->common.flags & ACPI_PARSEOP_IN_STACK)) { + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "Argument previously created, already stacked\n")); + + ACPI_DEBUGGER_EXEC(acpi_db_display_argument_object + (walk_state-> + operands[walk_state->num_operands - + 1], walk_state)); + + /* + * Use value that was already previously returned + * by the evaluation of this argument + */ + status = acpi_ds_result_pop(&obj_desc, walk_state); + if (ACPI_FAILURE(status)) { + /* + * Only error is underflow, and this indicates + * a missing or null operand! + */ + ACPI_EXCEPTION((AE_INFO, status, + "Missing or null operand")); + return_ACPI_STATUS(status); + } + } else { + /* Create an ACPI_INTERNAL_OBJECT for the argument */ + + obj_desc = + acpi_ut_create_internal_object(op_info-> + object_type); + if (!obj_desc) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* Initialize the new object */ + + status = + acpi_ds_init_object_from_op(walk_state, arg, opcode, + &obj_desc); + if (ACPI_FAILURE(status)) { + acpi_ut_delete_object_desc(obj_desc); + return_ACPI_STATUS(status); + } + } + + /* Put the operand object on the object stack */ + + status = acpi_ds_obj_stack_push(obj_desc, walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + ACPI_DEBUGGER_EXEC(acpi_db_display_argument_object + (obj_desc, walk_state)); + } + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_create_operands + * + * PARAMETERS: walk_state - Current state + * first_arg - First argument of a parser argument tree + * + * RETURN: Status + * + * DESCRIPTION: Convert an operator's arguments from a parse tree format to + * namespace objects and place those argument object on the object + * stack in preparation for evaluation by the interpreter. + * + ******************************************************************************/ + +acpi_status +acpi_ds_create_operands(struct acpi_walk_state *walk_state, + union acpi_parse_object *first_arg) +{ + acpi_status status = AE_OK; + union acpi_parse_object *arg; + union acpi_parse_object *arguments[ACPI_OBJ_NUM_OPERANDS]; + u32 arg_count = 0; + u32 index = walk_state->num_operands; + u32 i; + + ACPI_FUNCTION_TRACE_PTR(ds_create_operands, first_arg); + + /* Get all arguments in the list */ + + arg = first_arg; + while (arg) { + if (index >= ACPI_OBJ_NUM_OPERANDS) { + return_ACPI_STATUS(AE_BAD_DATA); + } + + arguments[index] = arg; + walk_state->operands[index] = NULL; + + /* Move on to next argument, if any */ + + arg = arg->common.next; + arg_count++; + index++; + } + + index--; + + /* It is the appropriate order to get objects from the Result stack */ + + for (i = 0; i < arg_count; i++) { + arg = arguments[index]; + + /* Force the filling of the operand stack in inverse order */ + + walk_state->operand_index = (u8) index; + + status = acpi_ds_create_operand(walk_state, arg, index); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + index--; + + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "Arg #%d (%p) done, Arg1=%p\n", index, arg, + first_arg)); + } + + return_ACPI_STATUS(status); + + cleanup: + /* + * We must undo everything done above; meaning that we must + * pop everything off of the operand stack and delete those + * objects + */ + acpi_ds_obj_stack_pop_and_delete(arg_count, walk_state); + + ACPI_EXCEPTION((AE_INFO, status, "While creating Arg %d", index)); + return_ACPI_STATUS(status); +} + +/***************************************************************************** + * + * FUNCTION: acpi_ds_evaluate_name_path + * + * PARAMETERS: walk_state - Current state of the parse tree walk, + * the opcode of current operation should be + * AML_INT_NAMEPATH_OP + * + * RETURN: Status + * + * DESCRIPTION: Translate the -name_path- parse tree object to the equivalent + * interpreter object, convert it to value, if needed, duplicate + * it, if needed, and push it onto the current result stack. + * + ****************************************************************************/ + +acpi_status acpi_ds_evaluate_name_path(struct acpi_walk_state *walk_state) +{ + acpi_status status = AE_OK; + union acpi_parse_object *op = walk_state->op; + union acpi_operand_object **operand = &walk_state->operands[0]; + union acpi_operand_object *new_obj_desc; + u8 type; + + ACPI_FUNCTION_TRACE_PTR(ds_evaluate_name_path, walk_state); + + if (!op->common.parent) { + + /* This happens after certain exception processing */ + + goto exit; + } + + if ((op->common.parent->common.aml_opcode == AML_PACKAGE_OP) || + (op->common.parent->common.aml_opcode == AML_VAR_PACKAGE_OP) || + (op->common.parent->common.aml_opcode == AML_REF_OF_OP)) { + + /* TBD: Should we specify this feature as a bit of op_info->Flags of these opcodes? */ + + goto exit; + } + + status = acpi_ds_create_operand(walk_state, op, 0); + if (ACPI_FAILURE(status)) { + goto exit; + } + + if (op->common.flags & ACPI_PARSEOP_TARGET) { + new_obj_desc = *operand; + goto push_result; + } + + type = ACPI_GET_OBJECT_TYPE(*operand); + + status = acpi_ex_resolve_to_value(operand, walk_state); + if (ACPI_FAILURE(status)) { + goto exit; + } + + if (type == ACPI_TYPE_INTEGER) { + + /* It was incremented by acpi_ex_resolve_to_value */ + + acpi_ut_remove_reference(*operand); + + status = + acpi_ut_copy_iobject_to_iobject(*operand, &new_obj_desc, + walk_state); + if (ACPI_FAILURE(status)) { + goto exit; + } + } else { + /* + * The object either was anew created or is + * a Namespace node - don't decrement it. + */ + new_obj_desc = *operand; + } + + /* Cleanup for name-path operand */ + + status = acpi_ds_obj_stack_pop(1, walk_state); + if (ACPI_FAILURE(status)) { + walk_state->result_obj = new_obj_desc; + goto exit; + } + + push_result: + + walk_state->result_obj = new_obj_desc; + + status = acpi_ds_result_push(walk_state->result_obj, walk_state); + if (ACPI_SUCCESS(status)) { + + /* Force to take it from stack */ + + op->common.flags |= ACPI_PARSEOP_IN_STACK; + } + + exit: + + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/dswexec.c b/drivers/acpi/acpica/dswexec.c new file mode 100644 index 000000000000..2482cbd37f25 --- /dev/null +++ b/drivers/acpi/acpica/dswexec.c @@ -0,0 +1,746 @@ +/****************************************************************************** + * + * Module Name: dswexec - Dispatcher method execution callbacks; + * dispatch to interpreter. + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_DISPATCHER +ACPI_MODULE_NAME("dswexec") + +/* + * Dispatch table for opcode classes + */ +static ACPI_EXECUTE_OP acpi_gbl_op_type_dispatch[] = { + acpi_ex_opcode_0A_0T_1R, + acpi_ex_opcode_1A_0T_0R, + acpi_ex_opcode_1A_0T_1R, + acpi_ex_opcode_1A_1T_0R, + acpi_ex_opcode_1A_1T_1R, + acpi_ex_opcode_2A_0T_0R, + acpi_ex_opcode_2A_0T_1R, + acpi_ex_opcode_2A_1T_1R, + acpi_ex_opcode_2A_2T_1R, + acpi_ex_opcode_3A_0T_0R, + acpi_ex_opcode_3A_1T_1R, + acpi_ex_opcode_6A_0T_1R +}; + +/***************************************************************************** + * + * FUNCTION: acpi_ds_get_predicate_value + * + * PARAMETERS: walk_state - Current state of the parse tree walk + * result_obj - if non-zero, pop result from result stack + * + * RETURN: Status + * + * DESCRIPTION: Get the result of a predicate evaluation + * + ****************************************************************************/ + +acpi_status +acpi_ds_get_predicate_value(struct acpi_walk_state *walk_state, + union acpi_operand_object *result_obj) +{ + acpi_status status = AE_OK; + union acpi_operand_object *obj_desc; + union acpi_operand_object *local_obj_desc = NULL; + + ACPI_FUNCTION_TRACE_PTR(ds_get_predicate_value, walk_state); + + walk_state->control_state->common.state = 0; + + if (result_obj) { + status = acpi_ds_result_pop(&obj_desc, walk_state); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Could not get result from predicate evaluation")); + + return_ACPI_STATUS(status); + } + } else { + status = acpi_ds_create_operand(walk_state, walk_state->op, 0); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + status = + acpi_ex_resolve_to_value(&walk_state->operands[0], + walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + obj_desc = walk_state->operands[0]; + } + + if (!obj_desc) { + ACPI_ERROR((AE_INFO, + "No predicate ObjDesc=%p State=%p", + obj_desc, walk_state)); + + return_ACPI_STATUS(AE_AML_NO_OPERAND); + } + + /* + * Result of predicate evaluation must be an Integer + * object. Implicitly convert the argument if necessary. + */ + status = acpi_ex_convert_to_integer(obj_desc, &local_obj_desc, 16); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + if (ACPI_GET_OBJECT_TYPE(local_obj_desc) != ACPI_TYPE_INTEGER) { + ACPI_ERROR((AE_INFO, + "Bad predicate (not an integer) ObjDesc=%p State=%p Type=%X", + obj_desc, walk_state, + ACPI_GET_OBJECT_TYPE(obj_desc))); + + status = AE_AML_OPERAND_TYPE; + goto cleanup; + } + + /* Truncate the predicate to 32-bits if necessary */ + + acpi_ex_truncate_for32bit_table(local_obj_desc); + + /* + * Save the result of the predicate evaluation on + * the control stack + */ + if (local_obj_desc->integer.value) { + walk_state->control_state->common.value = TRUE; + } else { + /* + * Predicate is FALSE, we will just toss the + * rest of the package + */ + walk_state->control_state->common.value = FALSE; + status = AE_CTRL_FALSE; + } + + /* Predicate can be used for an implicit return value */ + + (void)acpi_ds_do_implicit_return(local_obj_desc, walk_state, TRUE); + + cleanup: + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Completed a predicate eval=%X Op=%p\n", + walk_state->control_state->common.value, + walk_state->op)); + + /* Break to debugger to display result */ + + ACPI_DEBUGGER_EXEC(acpi_db_display_result_object + (local_obj_desc, walk_state)); + + /* + * Delete the predicate result object (we know that + * we don't need it anymore) + */ + if (local_obj_desc != obj_desc) { + acpi_ut_remove_reference(local_obj_desc); + } + acpi_ut_remove_reference(obj_desc); + + walk_state->control_state->common.state = ACPI_CONTROL_NORMAL; + return_ACPI_STATUS(status); +} + +/***************************************************************************** + * + * FUNCTION: acpi_ds_exec_begin_op + * + * PARAMETERS: walk_state - Current state of the parse tree walk + * out_op - Where to return op if a new one is created + * + * RETURN: Status + * + * DESCRIPTION: Descending callback used during the execution of control + * methods. This is where most operators and operands are + * dispatched to the interpreter. + * + ****************************************************************************/ + +acpi_status +acpi_ds_exec_begin_op(struct acpi_walk_state *walk_state, + union acpi_parse_object **out_op) +{ + union acpi_parse_object *op; + acpi_status status = AE_OK; + u32 opcode_class; + + ACPI_FUNCTION_TRACE_PTR(ds_exec_begin_op, walk_state); + + op = walk_state->op; + if (!op) { + status = acpi_ds_load2_begin_op(walk_state, out_op); + if (ACPI_FAILURE(status)) { + goto error_exit; + } + + op = *out_op; + walk_state->op = op; + walk_state->opcode = op->common.aml_opcode; + walk_state->op_info = + acpi_ps_get_opcode_info(op->common.aml_opcode); + + if (acpi_ns_opens_scope(walk_state->op_info->object_type)) { + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "(%s) Popping scope for Op %p\n", + acpi_ut_get_type_name(walk_state-> + op_info-> + object_type), + op)); + + status = acpi_ds_scope_stack_pop(walk_state); + if (ACPI_FAILURE(status)) { + goto error_exit; + } + } + } + + if (op == walk_state->origin) { + if (out_op) { + *out_op = op; + } + + return_ACPI_STATUS(AE_OK); + } + + /* + * If the previous opcode was a conditional, this opcode + * must be the beginning of the associated predicate. + * Save this knowledge in the current scope descriptor + */ + if ((walk_state->control_state) && + (walk_state->control_state->common.state == + ACPI_CONTROL_CONDITIONAL_EXECUTING)) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Exec predicate Op=%p State=%p\n", op, + walk_state)); + + walk_state->control_state->common.state = + ACPI_CONTROL_PREDICATE_EXECUTING; + + /* Save start of predicate */ + + walk_state->control_state->control.predicate_op = op; + } + + opcode_class = walk_state->op_info->class; + + /* We want to send namepaths to the load code */ + + if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) { + opcode_class = AML_CLASS_NAMED_OBJECT; + } + + /* + * Handle the opcode based upon the opcode type + */ + switch (opcode_class) { + case AML_CLASS_CONTROL: + + status = acpi_ds_exec_begin_control_op(walk_state, op); + break; + + case AML_CLASS_NAMED_OBJECT: + + if (walk_state->walk_type & ACPI_WALK_METHOD) { + /* + * Found a named object declaration during method execution; + * we must enter this object into the namespace. The created + * object is temporary and will be deleted upon completion of + * the execution of this method. + */ + status = acpi_ds_load2_begin_op(walk_state, NULL); + } + + break; + + case AML_CLASS_EXECUTE: + case AML_CLASS_CREATE: + + break; + + default: + break; + } + + /* Nothing to do here during method execution */ + + return_ACPI_STATUS(status); + + error_exit: + status = acpi_ds_method_error(status, walk_state); + return_ACPI_STATUS(status); +} + +/***************************************************************************** + * + * FUNCTION: acpi_ds_exec_end_op + * + * PARAMETERS: walk_state - Current state of the parse tree walk + * + * RETURN: Status + * + * DESCRIPTION: Ascending callback used during the execution of control + * methods. The only thing we really need to do here is to + * notice the beginning of IF, ELSE, and WHILE blocks. + * + ****************************************************************************/ + +acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state) +{ + union acpi_parse_object *op; + acpi_status status = AE_OK; + u32 op_type; + u32 op_class; + union acpi_parse_object *next_op; + union acpi_parse_object *first_arg; + + ACPI_FUNCTION_TRACE_PTR(ds_exec_end_op, walk_state); + + op = walk_state->op; + op_type = walk_state->op_info->type; + op_class = walk_state->op_info->class; + + if (op_class == AML_CLASS_UNKNOWN) { + ACPI_ERROR((AE_INFO, "Unknown opcode %X", + op->common.aml_opcode)); + return_ACPI_STATUS(AE_NOT_IMPLEMENTED); + } + + first_arg = op->common.value.arg; + + /* Init the walk state */ + + walk_state->num_operands = 0; + walk_state->operand_index = 0; + walk_state->return_desc = NULL; + walk_state->result_obj = NULL; + + /* Call debugger for single step support (DEBUG build only) */ + + ACPI_DEBUGGER_EXEC(status = + acpi_db_single_step(walk_state, op, op_class)); + ACPI_DEBUGGER_EXEC(if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status);} + ) ; + + /* Decode the Opcode Class */ + + switch (op_class) { + case AML_CLASS_ARGUMENT: /* Constants, literals, etc. */ + + if (walk_state->opcode == AML_INT_NAMEPATH_OP) { + status = acpi_ds_evaluate_name_path(walk_state); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + } + break; + + case AML_CLASS_EXECUTE: /* Most operators with arguments */ + + /* Build resolved operand stack */ + + status = acpi_ds_create_operands(walk_state, first_arg); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + /* + * All opcodes require operand resolution, with the only exceptions + * being the object_type and size_of operators. + */ + if (!(walk_state->op_info->flags & AML_NO_OPERAND_RESOLVE)) { + + /* Resolve all operands */ + + status = acpi_ex_resolve_operands(walk_state->opcode, + &(walk_state-> + operands + [walk_state-> + num_operands - 1]), + walk_state); + } + + if (ACPI_SUCCESS(status)) { + /* + * Dispatch the request to the appropriate interpreter handler + * routine. There is one routine per opcode "type" based upon the + * number of opcode arguments and return type. + */ + status = + acpi_gbl_op_type_dispatch[op_type] (walk_state); + } else { + /* + * Treat constructs of the form "Store(LocalX,LocalX)" as noops when the + * Local is uninitialized. + */ + if ((status == AE_AML_UNINITIALIZED_LOCAL) && + (walk_state->opcode == AML_STORE_OP) && + (walk_state->operands[0]->common.type == + ACPI_TYPE_LOCAL_REFERENCE) + && (walk_state->operands[1]->common.type == + ACPI_TYPE_LOCAL_REFERENCE) + && (walk_state->operands[0]->reference.class == + walk_state->operands[1]->reference.class) + && (walk_state->operands[0]->reference.value == + walk_state->operands[1]->reference.value)) { + status = AE_OK; + } else { + ACPI_EXCEPTION((AE_INFO, status, + "While resolving operands for [%s]", + acpi_ps_get_opcode_name + (walk_state->opcode))); + } + } + + /* Always delete the argument objects and clear the operand stack */ + + acpi_ds_clear_operands(walk_state); + + /* + * If a result object was returned from above, push it on the + * current result stack + */ + if (ACPI_SUCCESS(status) && walk_state->result_obj) { + status = + acpi_ds_result_push(walk_state->result_obj, + walk_state); + } + break; + + default: + + switch (op_type) { + case AML_TYPE_CONTROL: /* Type 1 opcode, IF/ELSE/WHILE/NOOP */ + + /* 1 Operand, 0 external_result, 0 internal_result */ + + status = acpi_ds_exec_end_control_op(walk_state, op); + + break; + + case AML_TYPE_METHOD_CALL: + + /* + * If the method is referenced from within a package + * declaration, it is not a invocation of the method, just + * a reference to it. + */ + if ((op->asl.parent) && + ((op->asl.parent->asl.aml_opcode == AML_PACKAGE_OP) + || (op->asl.parent->asl.aml_opcode == + AML_VAR_PACKAGE_OP))) { + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "Method Reference in a Package, Op=%p\n", + op)); + + op->common.node = + (struct acpi_namespace_node *)op->asl.value. + arg->asl.node; + acpi_ut_add_reference(op->asl.value.arg->asl. + node->object); + return_ACPI_STATUS(AE_OK); + } + + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "Method invocation, Op=%p\n", op)); + + /* + * (AML_METHODCALL) Op->Asl.Value.Arg->Asl.Node contains + * the method Node pointer + */ + /* next_op points to the op that holds the method name */ + + next_op = first_arg; + + /* next_op points to first argument op */ + + next_op = next_op->common.next; + + /* + * Get the method's arguments and put them on the operand stack + */ + status = acpi_ds_create_operands(walk_state, next_op); + if (ACPI_FAILURE(status)) { + break; + } + + /* + * Since the operands will be passed to another control method, + * we must resolve all local references here (Local variables, + * arguments to *this* method, etc.) + */ + status = acpi_ds_resolve_operands(walk_state); + if (ACPI_FAILURE(status)) { + + /* On error, clear all resolved operands */ + + acpi_ds_clear_operands(walk_state); + break; + } + + /* + * Tell the walk loop to preempt this running method and + * execute the new method + */ + status = AE_CTRL_TRANSFER; + + /* + * Return now; we don't want to disturb anything, + * especially the operand count! + */ + return_ACPI_STATUS(status); + + case AML_TYPE_CREATE_FIELD: + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Executing CreateField Buffer/Index Op=%p\n", + op)); + + status = acpi_ds_load2_end_op(walk_state); + if (ACPI_FAILURE(status)) { + break; + } + + status = + acpi_ds_eval_buffer_field_operands(walk_state, op); + break; + + case AML_TYPE_CREATE_OBJECT: + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Executing CreateObject (Buffer/Package) Op=%p\n", + op)); + + switch (op->common.parent->common.aml_opcode) { + case AML_NAME_OP: + + /* + * Put the Node on the object stack (Contains the ACPI Name + * of this object) + */ + walk_state->operands[0] = + (void *)op->common.parent->common.node; + walk_state->num_operands = 1; + + status = acpi_ds_create_node(walk_state, + op->common.parent-> + common.node, + op->common.parent); + if (ACPI_FAILURE(status)) { + break; + } + + /* Fall through */ + /*lint -fallthrough */ + + case AML_INT_EVAL_SUBTREE_OP: + + status = + acpi_ds_eval_data_object_operands + (walk_state, op, + acpi_ns_get_attached_object(op->common. + parent->common. + node)); + break; + + default: + + status = + acpi_ds_eval_data_object_operands + (walk_state, op, NULL); + break; + } + + /* + * If a result object was returned from above, push it on the + * current result stack + */ + if (walk_state->result_obj) { + status = + acpi_ds_result_push(walk_state->result_obj, + walk_state); + } + break; + + case AML_TYPE_NAMED_FIELD: + case AML_TYPE_NAMED_COMPLEX: + case AML_TYPE_NAMED_SIMPLE: + case AML_TYPE_NAMED_NO_OBJ: + + status = acpi_ds_load2_end_op(walk_state); + if (ACPI_FAILURE(status)) { + break; + } + + if (op->common.aml_opcode == AML_REGION_OP) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Executing OpRegion Address/Length Op=%p\n", + op)); + + status = + acpi_ds_eval_region_operands(walk_state, + op); + if (ACPI_FAILURE(status)) { + break; + } + } else if (op->common.aml_opcode == AML_DATA_REGION_OP) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Executing DataTableRegion Strings Op=%p\n", + op)); + + status = + acpi_ds_eval_table_region_operands + (walk_state, op); + if (ACPI_FAILURE(status)) { + break; + } + } else if (op->common.aml_opcode == AML_BANK_FIELD_OP) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Executing BankField Op=%p\n", + op)); + + status = + acpi_ds_eval_bank_field_operands(walk_state, + op); + if (ACPI_FAILURE(status)) { + break; + } + } + break; + + case AML_TYPE_UNDEFINED: + + ACPI_ERROR((AE_INFO, + "Undefined opcode type Op=%p", op)); + return_ACPI_STATUS(AE_NOT_IMPLEMENTED); + + case AML_TYPE_BOGUS: + + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "Internal opcode=%X type Op=%p\n", + walk_state->opcode, op)); + break; + + default: + + ACPI_ERROR((AE_INFO, + "Unimplemented opcode, class=%X type=%X Opcode=%X Op=%p", + op_class, op_type, op->common.aml_opcode, + op)); + + status = AE_NOT_IMPLEMENTED; + break; + } + } + + /* + * ACPI 2.0 support for 64-bit integers: Truncate numeric + * result value if we are executing from a 32-bit ACPI table + */ + acpi_ex_truncate_for32bit_table(walk_state->result_obj); + + /* + * Check if we just completed the evaluation of a + * conditional predicate + */ + if ((ACPI_SUCCESS(status)) && + (walk_state->control_state) && + (walk_state->control_state->common.state == + ACPI_CONTROL_PREDICATE_EXECUTING) && + (walk_state->control_state->control.predicate_op == op)) { + status = + acpi_ds_get_predicate_value(walk_state, + walk_state->result_obj); + walk_state->result_obj = NULL; + } + + cleanup: + + if (walk_state->result_obj) { + + /* Break to debugger to display result */ + + ACPI_DEBUGGER_EXEC(acpi_db_display_result_object + (walk_state->result_obj, walk_state)); + + /* + * Delete the result op if and only if: + * Parent will not use the result -- such as any + * non-nested type2 op in a method (parent will be method) + */ + acpi_ds_delete_result_if_not_used(op, walk_state->result_obj, + walk_state); + } +#ifdef _UNDER_DEVELOPMENT + + if (walk_state->parser_state.aml == walk_state->parser_state.aml_end) { + acpi_db_method_end(walk_state); + } +#endif + + /* Invoke exception handler on error */ + + if (ACPI_FAILURE(status)) { + status = acpi_ds_method_error(status, walk_state); + } + + /* Always clear the object stack */ + + walk_state->num_operands = 0; + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/dswload.c b/drivers/acpi/acpica/dswload.c new file mode 100644 index 000000000000..2d71ceda3d56 --- /dev/null +++ b/drivers/acpi/acpica/dswload.c @@ -0,0 +1,1203 @@ +/****************************************************************************** + * + * Module Name: dswload - Dispatcher namespace load callbacks + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#ifdef ACPI_ASL_COMPILER +#include +#endif + +#define _COMPONENT ACPI_DISPATCHER +ACPI_MODULE_NAME("dswload") + +/******************************************************************************* + * + * FUNCTION: acpi_ds_init_callbacks + * + * PARAMETERS: walk_state - Current state of the parse tree walk + * pass_number - 1, 2, or 3 + * + * RETURN: Status + * + * DESCRIPTION: Init walk state callbacks + * + ******************************************************************************/ +acpi_status +acpi_ds_init_callbacks(struct acpi_walk_state *walk_state, u32 pass_number) +{ + + switch (pass_number) { + case 1: + walk_state->parse_flags = ACPI_PARSE_LOAD_PASS1 | + ACPI_PARSE_DELETE_TREE; + walk_state->descending_callback = acpi_ds_load1_begin_op; + walk_state->ascending_callback = acpi_ds_load1_end_op; + break; + + case 2: + walk_state->parse_flags = ACPI_PARSE_LOAD_PASS1 | + ACPI_PARSE_DELETE_TREE; + walk_state->descending_callback = acpi_ds_load2_begin_op; + walk_state->ascending_callback = acpi_ds_load2_end_op; + break; + + case 3: +#ifndef ACPI_NO_METHOD_EXECUTION + walk_state->parse_flags |= ACPI_PARSE_EXECUTE | + ACPI_PARSE_DELETE_TREE; + walk_state->descending_callback = acpi_ds_exec_begin_op; + walk_state->ascending_callback = acpi_ds_exec_end_op; +#endif + break; + + default: + return (AE_BAD_PARAMETER); + } + + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_load1_begin_op + * + * PARAMETERS: walk_state - Current state of the parse tree walk + * out_op - Where to return op if a new one is created + * + * RETURN: Status + * + * DESCRIPTION: Descending callback used during the loading of ACPI tables. + * + ******************************************************************************/ + +acpi_status +acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state, + union acpi_parse_object ** out_op) +{ + union acpi_parse_object *op; + struct acpi_namespace_node *node; + acpi_status status; + acpi_object_type object_type; + char *path; + u32 flags; + + ACPI_FUNCTION_TRACE(ds_load1_begin_op); + + op = walk_state->op; + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op, + walk_state)); + + /* We are only interested in opcodes that have an associated name */ + + if (op) { + if (!(walk_state->op_info->flags & AML_NAMED)) { + *out_op = op; + return_ACPI_STATUS(AE_OK); + } + + /* Check if this object has already been installed in the namespace */ + + if (op->common.node) { + *out_op = op; + return_ACPI_STATUS(AE_OK); + } + } + + path = acpi_ps_get_next_namestring(&walk_state->parser_state); + + /* Map the raw opcode into an internal object type */ + + object_type = walk_state->op_info->object_type; + + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "State=%p Op=%p [%s]\n", walk_state, op, + acpi_ut_get_type_name(object_type))); + + switch (walk_state->opcode) { + case AML_SCOPE_OP: + + /* + * The target name of the Scope() operator must exist at this point so + * that we can actually open the scope to enter new names underneath it. + * Allow search-to-root for single namesegs. + */ + status = + acpi_ns_lookup(walk_state->scope_info, path, object_type, + ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, + walk_state, &(node)); +#ifdef ACPI_ASL_COMPILER + if (status == AE_NOT_FOUND) { + /* + * Table disassembly: + * Target of Scope() not found. Generate an External for it, and + * insert the name into the namespace. + */ + acpi_dm_add_to_external_list(path, ACPI_TYPE_DEVICE, 0); + status = + acpi_ns_lookup(walk_state->scope_info, path, + object_type, ACPI_IMODE_LOAD_PASS1, + ACPI_NS_SEARCH_PARENT, walk_state, + &node); + } +#endif + if (ACPI_FAILURE(status)) { + ACPI_ERROR_NAMESPACE(path, status); + return_ACPI_STATUS(status); + } + + /* + * Check to make sure that the target is + * one of the opcodes that actually opens a scope + */ + switch (node->type) { + case ACPI_TYPE_ANY: + case ACPI_TYPE_LOCAL_SCOPE: /* Scope */ + case ACPI_TYPE_DEVICE: + case ACPI_TYPE_POWER: + case ACPI_TYPE_PROCESSOR: + case ACPI_TYPE_THERMAL: + + /* These are acceptable types */ + break; + + case ACPI_TYPE_INTEGER: + case ACPI_TYPE_STRING: + case ACPI_TYPE_BUFFER: + + /* + * These types we will allow, but we will change the type. This + * enables some existing code of the form: + * + * Name (DEB, 0) + * Scope (DEB) { ... } + * + * Note: silently change the type here. On the second pass, we will report + * a warning + */ + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)\n", + path, + acpi_ut_get_type_name(node->type))); + + node->type = ACPI_TYPE_ANY; + walk_state->scope_info->common.value = ACPI_TYPE_ANY; + break; + + default: + + /* All other types are an error */ + + ACPI_ERROR((AE_INFO, + "Invalid type (%s) for target of Scope operator [%4.4s] (Cannot override)", + acpi_ut_get_type_name(node->type), path)); + + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + break; + + default: + /* + * For all other named opcodes, we will enter the name into + * the namespace. + * + * Setup the search flags. + * Since we are entering a name into the namespace, we do not want to + * enable the search-to-root upsearch. + * + * There are only two conditions where it is acceptable that the name + * already exists: + * 1) the Scope() operator can reopen a scoping object that was + * previously defined (Scope, Method, Device, etc.) + * 2) Whenever we are parsing a deferred opcode (op_region, Buffer, + * buffer_field, or Package), the name of the object is already + * in the namespace. + */ + if (walk_state->deferred_node) { + + /* This name is already in the namespace, get the node */ + + node = walk_state->deferred_node; + status = AE_OK; + break; + } + + /* + * If we are executing a method, do not create any namespace objects + * during the load phase, only during execution. + */ + if (walk_state->method_node) { + node = NULL; + status = AE_OK; + break; + } + + flags = ACPI_NS_NO_UPSEARCH; + if ((walk_state->opcode != AML_SCOPE_OP) && + (!(walk_state->parse_flags & ACPI_PARSE_DEFERRED_OP))) { + flags |= ACPI_NS_ERROR_IF_FOUND; + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "[%s] Cannot already exist\n", + acpi_ut_get_type_name(object_type))); + } else { + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "[%s] Both Find or Create allowed\n", + acpi_ut_get_type_name(object_type))); + } + + /* + * Enter the named type into the internal namespace. We enter the name + * as we go downward in the parse tree. Any necessary subobjects that + * involve arguments to the opcode must be created as we go back up the + * parse tree later. + */ + status = + acpi_ns_lookup(walk_state->scope_info, path, object_type, + ACPI_IMODE_LOAD_PASS1, flags, walk_state, + &node); + if (ACPI_FAILURE(status)) { + if (status == AE_ALREADY_EXISTS) { + + /* The name already exists in this scope */ + + if (node->flags & ANOBJ_IS_EXTERNAL) { + /* + * Allow one create on an object or segment that was + * previously declared External + */ + node->flags &= ~ANOBJ_IS_EXTERNAL; + node->type = (u8) object_type; + + /* Just retyped a node, probably will need to open a scope */ + + if (acpi_ns_opens_scope(object_type)) { + status = + acpi_ds_scope_stack_push + (node, object_type, + walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS + (status); + } + } + + status = AE_OK; + } + } + + if (ACPI_FAILURE(status)) { + ACPI_ERROR_NAMESPACE(path, status); + return_ACPI_STATUS(status); + } + } + break; + } + + /* Common exit */ + + if (!op) { + + /* Create a new op */ + + op = acpi_ps_alloc_op(walk_state->opcode); + if (!op) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + } + + /* Initialize the op */ + +#if (defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)) + op->named.path = ACPI_CAST_PTR(u8, path); +#endif + + if (node) { + /* + * Put the Node in the "op" object that the parser uses, so we + * can get it again quickly when this scope is closed + */ + op->common.node = node; + op->named.name = node->name.integer; + } + + acpi_ps_append_arg(acpi_ps_get_parent_scope(&walk_state->parser_state), + op); + *out_op = op; + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_load1_end_op + * + * PARAMETERS: walk_state - Current state of the parse tree walk + * + * RETURN: Status + * + * DESCRIPTION: Ascending callback used during the loading of the namespace, + * both control methods and everything else. + * + ******************************************************************************/ + +acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state) +{ + union acpi_parse_object *op; + acpi_object_type object_type; + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE(ds_load1_end_op); + + op = walk_state->op; + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op, + walk_state)); + + /* We are only interested in opcodes that have an associated name */ + + if (!(walk_state->op_info->flags & (AML_NAMED | AML_FIELD))) { + return_ACPI_STATUS(AE_OK); + } + + /* Get the object type to determine if we should pop the scope */ + + object_type = walk_state->op_info->object_type; + +#ifndef ACPI_NO_METHOD_EXECUTION + if (walk_state->op_info->flags & AML_FIELD) { + /* + * If we are executing a method, do not create any namespace objects + * during the load phase, only during execution. + */ + if (!walk_state->method_node) { + if (walk_state->opcode == AML_FIELD_OP || + walk_state->opcode == AML_BANK_FIELD_OP || + walk_state->opcode == AML_INDEX_FIELD_OP) { + status = + acpi_ds_init_field_objects(op, walk_state); + } + } + return_ACPI_STATUS(status); + } + + /* + * If we are executing a method, do not create any namespace objects + * during the load phase, only during execution. + */ + if (!walk_state->method_node) { + if (op->common.aml_opcode == AML_REGION_OP) { + status = + acpi_ex_create_region(op->named.data, + op->named.length, + (acpi_adr_space_type) ((op-> + common. + value. + arg)-> + common. + value. + integer), + walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } else if (op->common.aml_opcode == AML_DATA_REGION_OP) { + status = + acpi_ex_create_region(op->named.data, + op->named.length, + REGION_DATA_TABLE, + walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + } +#endif + + if (op->common.aml_opcode == AML_NAME_OP) { + + /* For Name opcode, get the object type from the argument */ + + if (op->common.value.arg) { + object_type = (acpi_ps_get_opcode_info((op->common. + value.arg)-> + common. + aml_opcode))-> + object_type; + + /* Set node type if we have a namespace node */ + + if (op->common.node) { + op->common.node->type = (u8) object_type; + } + } + } + + /* + * If we are executing a method, do not create any namespace objects + * during the load phase, only during execution. + */ + if (!walk_state->method_node) { + if (op->common.aml_opcode == AML_METHOD_OP) { + /* + * method_op pkg_length name_string method_flags term_list + * + * Note: We must create the method node/object pair as soon as we + * see the method declaration. This allows later pass1 parsing + * of invocations of the method (need to know the number of + * arguments.) + */ + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "LOADING-Method: State=%p Op=%p NamedObj=%p\n", + walk_state, op, op->named.node)); + + if (!acpi_ns_get_attached_object(op->named.node)) { + walk_state->operands[0] = + ACPI_CAST_PTR(void, op->named.node); + walk_state->num_operands = 1; + + status = + acpi_ds_create_operands(walk_state, + op->common.value. + arg); + if (ACPI_SUCCESS(status)) { + status = + acpi_ex_create_method(op->named. + data, + op->named. + length, + walk_state); + } + + walk_state->operands[0] = NULL; + walk_state->num_operands = 0; + + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + } + } + + /* Pop the scope stack (only if loading a table) */ + + if (!walk_state->method_node && acpi_ns_opens_scope(object_type)) { + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "(%s): Popping scope for Op %p\n", + acpi_ut_get_type_name(object_type), op)); + + status = acpi_ds_scope_stack_pop(walk_state); + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_load2_begin_op + * + * PARAMETERS: walk_state - Current state of the parse tree walk + * out_op - Wher to return op if a new one is created + * + * RETURN: Status + * + * DESCRIPTION: Descending callback used during the loading of ACPI tables. + * + ******************************************************************************/ + +acpi_status +acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state, + union acpi_parse_object **out_op) +{ + union acpi_parse_object *op; + struct acpi_namespace_node *node; + acpi_status status; + acpi_object_type object_type; + char *buffer_ptr; + u32 flags; + + ACPI_FUNCTION_TRACE(ds_load2_begin_op); + + op = walk_state->op; + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op, + walk_state)); + + if (op) { + if ((walk_state->control_state) && + (walk_state->control_state->common.state == + ACPI_CONTROL_CONDITIONAL_EXECUTING)) { + + /* We are executing a while loop outside of a method */ + + status = acpi_ds_exec_begin_op(walk_state, out_op); + return_ACPI_STATUS(status); + } + + /* We only care about Namespace opcodes here */ + + if ((!(walk_state->op_info->flags & AML_NSOPCODE) && + (walk_state->opcode != AML_INT_NAMEPATH_OP)) || + (!(walk_state->op_info->flags & AML_NAMED))) { +#ifdef ACPI_ENABLE_MODULE_LEVEL_CODE + if ((walk_state->op_info->class == AML_CLASS_EXECUTE) || + (walk_state->op_info->class == AML_CLASS_CONTROL)) { + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "Begin/EXEC: %s (fl %8.8X)\n", + walk_state->op_info->name, + walk_state->op_info->flags)); + + /* Executing a type1 or type2 opcode outside of a method */ + + status = + acpi_ds_exec_begin_op(walk_state, out_op); + return_ACPI_STATUS(status); + } +#endif + return_ACPI_STATUS(AE_OK); + } + + /* Get the name we are going to enter or lookup in the namespace */ + + if (walk_state->opcode == AML_INT_NAMEPATH_OP) { + + /* For Namepath op, get the path string */ + + buffer_ptr = op->common.value.string; + if (!buffer_ptr) { + + /* No name, just exit */ + + return_ACPI_STATUS(AE_OK); + } + } else { + /* Get name from the op */ + + buffer_ptr = ACPI_CAST_PTR(char, &op->named.name); + } + } else { + /* Get the namestring from the raw AML */ + + buffer_ptr = + acpi_ps_get_next_namestring(&walk_state->parser_state); + } + + /* Map the opcode into an internal object type */ + + object_type = walk_state->op_info->object_type; + + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "State=%p Op=%p Type=%X\n", walk_state, op, + object_type)); + + switch (walk_state->opcode) { + case AML_FIELD_OP: + case AML_BANK_FIELD_OP: + case AML_INDEX_FIELD_OP: + + node = NULL; + status = AE_OK; + break; + + case AML_INT_NAMEPATH_OP: + /* + * The name_path is an object reference to an existing object. + * Don't enter the name into the namespace, but look it up + * for use later. + */ + status = + acpi_ns_lookup(walk_state->scope_info, buffer_ptr, + object_type, ACPI_IMODE_EXECUTE, + ACPI_NS_SEARCH_PARENT, walk_state, &(node)); + break; + + case AML_SCOPE_OP: + /* + * The Path is an object reference to an existing object. + * Don't enter the name into the namespace, but look it up + * for use later. + */ + status = + acpi_ns_lookup(walk_state->scope_info, buffer_ptr, + object_type, ACPI_IMODE_EXECUTE, + ACPI_NS_SEARCH_PARENT, walk_state, &(node)); + if (ACPI_FAILURE(status)) { +#ifdef ACPI_ASL_COMPILER + if (status == AE_NOT_FOUND) { + status = AE_OK; + } else { + ACPI_ERROR_NAMESPACE(buffer_ptr, status); + } +#else + ACPI_ERROR_NAMESPACE(buffer_ptr, status); +#endif + return_ACPI_STATUS(status); + } + + /* + * We must check to make sure that the target is + * one of the opcodes that actually opens a scope + */ + switch (node->type) { + case ACPI_TYPE_ANY: + case ACPI_TYPE_LOCAL_SCOPE: /* Scope */ + case ACPI_TYPE_DEVICE: + case ACPI_TYPE_POWER: + case ACPI_TYPE_PROCESSOR: + case ACPI_TYPE_THERMAL: + + /* These are acceptable types */ + break; + + case ACPI_TYPE_INTEGER: + case ACPI_TYPE_STRING: + case ACPI_TYPE_BUFFER: + + /* + * These types we will allow, but we will change the type. This + * enables some existing code of the form: + * + * Name (DEB, 0) + * Scope (DEB) { ... } + */ + ACPI_WARNING((AE_INFO, + "Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)", + buffer_ptr, + acpi_ut_get_type_name(node->type))); + + node->type = ACPI_TYPE_ANY; + walk_state->scope_info->common.value = ACPI_TYPE_ANY; + break; + + default: + + /* All other types are an error */ + + ACPI_ERROR((AE_INFO, + "Invalid type (%s) for target of Scope operator [%4.4s]", + acpi_ut_get_type_name(node->type), + buffer_ptr)); + + return (AE_AML_OPERAND_TYPE); + } + break; + + default: + + /* All other opcodes */ + + if (op && op->common.node) { + + /* This op/node was previously entered into the namespace */ + + node = op->common.node; + + if (acpi_ns_opens_scope(object_type)) { + status = + acpi_ds_scope_stack_push(node, object_type, + walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + + return_ACPI_STATUS(AE_OK); + } + + /* + * Enter the named type into the internal namespace. We enter the name + * as we go downward in the parse tree. Any necessary subobjects that + * involve arguments to the opcode must be created as we go back up the + * parse tree later. + * + * Note: Name may already exist if we are executing a deferred opcode. + */ + if (walk_state->deferred_node) { + + /* This name is already in the namespace, get the node */ + + node = walk_state->deferred_node; + status = AE_OK; + break; + } + + flags = ACPI_NS_NO_UPSEARCH; + if (walk_state->pass_number == ACPI_IMODE_EXECUTE) { + + /* Execution mode, node cannot already exist, node is temporary */ + + flags |= (ACPI_NS_ERROR_IF_FOUND | ACPI_NS_TEMPORARY); + } + + /* Add new entry or lookup existing entry */ + + status = + acpi_ns_lookup(walk_state->scope_info, buffer_ptr, + object_type, ACPI_IMODE_LOAD_PASS2, flags, + walk_state, &node); + + if (ACPI_SUCCESS(status) && (flags & ACPI_NS_TEMPORARY)) { + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "***New Node [%4.4s] %p is temporary\n", + acpi_ut_get_node_name(node), node)); + } + break; + } + + if (ACPI_FAILURE(status)) { + ACPI_ERROR_NAMESPACE(buffer_ptr, status); + return_ACPI_STATUS(status); + } + + if (!op) { + + /* Create a new op */ + + op = acpi_ps_alloc_op(walk_state->opcode); + if (!op) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* Initialize the new op */ + + if (node) { + op->named.name = node->name.integer; + } + *out_op = op; + } + + /* + * Put the Node in the "op" object that the parser uses, so we + * can get it again quickly when this scope is closed + */ + op->common.node = node; + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_load2_end_op + * + * PARAMETERS: walk_state - Current state of the parse tree walk + * + * RETURN: Status + * + * DESCRIPTION: Ascending callback used during the loading of the namespace, + * both control methods and everything else. + * + ******************************************************************************/ + +acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state) +{ + union acpi_parse_object *op; + acpi_status status = AE_OK; + acpi_object_type object_type; + struct acpi_namespace_node *node; + union acpi_parse_object *arg; + struct acpi_namespace_node *new_node; +#ifndef ACPI_NO_METHOD_EXECUTION + u32 i; + u8 region_space; +#endif + + ACPI_FUNCTION_TRACE(ds_load2_end_op); + + op = walk_state->op; + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Opcode [%s] Op %p State %p\n", + walk_state->op_info->name, op, walk_state)); + + /* Check if opcode had an associated namespace object */ + + if (!(walk_state->op_info->flags & AML_NSOBJECT)) { +#ifndef ACPI_NO_METHOD_EXECUTION +#ifdef ACPI_ENABLE_MODULE_LEVEL_CODE + /* No namespace object. Executable opcode? */ + + if ((walk_state->op_info->class == AML_CLASS_EXECUTE) || + (walk_state->op_info->class == AML_CLASS_CONTROL)) { + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "End/EXEC: %s (fl %8.8X)\n", + walk_state->op_info->name, + walk_state->op_info->flags)); + + /* Executing a type1 or type2 opcode outside of a method */ + + status = acpi_ds_exec_end_op(walk_state); + return_ACPI_STATUS(status); + } +#endif +#endif + return_ACPI_STATUS(AE_OK); + } + + if (op->common.aml_opcode == AML_SCOPE_OP) { + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "Ending scope Op=%p State=%p\n", op, + walk_state)); + } + + object_type = walk_state->op_info->object_type; + + /* + * Get the Node/name from the earlier lookup + * (It was saved in the *op structure) + */ + node = op->common.node; + + /* + * Put the Node on the object stack (Contains the ACPI Name of + * this object) + */ + walk_state->operands[0] = (void *)node; + walk_state->num_operands = 1; + + /* Pop the scope stack */ + + if (acpi_ns_opens_scope(object_type) && + (op->common.aml_opcode != AML_INT_METHODCALL_OP)) { + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "(%s) Popping scope for Op %p\n", + acpi_ut_get_type_name(object_type), op)); + + status = acpi_ds_scope_stack_pop(walk_state); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + } + + /* + * Named operations are as follows: + * + * AML_ALIAS + * AML_BANKFIELD + * AML_CREATEBITFIELD + * AML_CREATEBYTEFIELD + * AML_CREATEDWORDFIELD + * AML_CREATEFIELD + * AML_CREATEQWORDFIELD + * AML_CREATEWORDFIELD + * AML_DATA_REGION + * AML_DEVICE + * AML_EVENT + * AML_FIELD + * AML_INDEXFIELD + * AML_METHOD + * AML_METHODCALL + * AML_MUTEX + * AML_NAME + * AML_NAMEDFIELD + * AML_OPREGION + * AML_POWERRES + * AML_PROCESSOR + * AML_SCOPE + * AML_THERMALZONE + */ + + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "Create-Load [%s] State=%p Op=%p NamedObj=%p\n", + acpi_ps_get_opcode_name(op->common.aml_opcode), + walk_state, op, node)); + + /* Decode the opcode */ + + arg = op->common.value.arg; + + switch (walk_state->op_info->type) { +#ifndef ACPI_NO_METHOD_EXECUTION + + case AML_TYPE_CREATE_FIELD: + /* + * Create the field object, but the field buffer and index must + * be evaluated later during the execution phase + */ + status = acpi_ds_create_buffer_field(op, walk_state); + break; + + case AML_TYPE_NAMED_FIELD: + /* + * If we are executing a method, initialize the field + */ + if (walk_state->method_node) { + status = acpi_ds_init_field_objects(op, walk_state); + } + + switch (op->common.aml_opcode) { + case AML_INDEX_FIELD_OP: + + status = + acpi_ds_create_index_field(op, + (acpi_handle) arg-> + common.node, walk_state); + break; + + case AML_BANK_FIELD_OP: + + status = + acpi_ds_create_bank_field(op, arg->common.node, + walk_state); + break; + + case AML_FIELD_OP: + + status = + acpi_ds_create_field(op, arg->common.node, + walk_state); + break; + + default: + /* All NAMED_FIELD opcodes must be handled above */ + break; + } + break; + + case AML_TYPE_NAMED_SIMPLE: + + status = acpi_ds_create_operands(walk_state, arg); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + switch (op->common.aml_opcode) { + case AML_PROCESSOR_OP: + + status = acpi_ex_create_processor(walk_state); + break; + + case AML_POWER_RES_OP: + + status = acpi_ex_create_power_resource(walk_state); + break; + + case AML_MUTEX_OP: + + status = acpi_ex_create_mutex(walk_state); + break; + + case AML_EVENT_OP: + + status = acpi_ex_create_event(walk_state); + break; + + case AML_ALIAS_OP: + + status = acpi_ex_create_alias(walk_state); + break; + + default: + /* Unknown opcode */ + + status = AE_OK; + goto cleanup; + } + + /* Delete operands */ + + for (i = 1; i < walk_state->num_operands; i++) { + acpi_ut_remove_reference(walk_state->operands[i]); + walk_state->operands[i] = NULL; + } + + break; +#endif /* ACPI_NO_METHOD_EXECUTION */ + + case AML_TYPE_NAMED_COMPLEX: + + switch (op->common.aml_opcode) { +#ifndef ACPI_NO_METHOD_EXECUTION + case AML_REGION_OP: + case AML_DATA_REGION_OP: + + if (op->common.aml_opcode == AML_REGION_OP) { + region_space = (acpi_adr_space_type) + ((op->common.value.arg)->common.value. + integer); + } else { + region_space = REGION_DATA_TABLE; + } + + /* + * If we are executing a method, initialize the region + */ + if (walk_state->method_node) { + status = + acpi_ex_create_region(op->named.data, + op->named.length, + region_space, + walk_state); + if (ACPI_FAILURE(status)) { + return (status); + } + } + + /* + * The op_region is not fully parsed at this time. Only valid + * argument is the space_id. (We must save the address of the + * AML of the address and length operands) + */ + + /* + * If we have a valid region, initialize it + * Namespace is NOT locked at this point. + */ + status = + acpi_ev_initialize_region + (acpi_ns_get_attached_object(node), FALSE); + if (ACPI_FAILURE(status)) { + /* + * If AE_NOT_EXIST is returned, it is not fatal + * because many regions get created before a handler + * is installed for said region. + */ + if (AE_NOT_EXIST == status) { + status = AE_OK; + } + } + break; + + case AML_NAME_OP: + + status = acpi_ds_create_node(walk_state, node, op); + break; + + case AML_METHOD_OP: + /* + * method_op pkg_length name_string method_flags term_list + * + * Note: We must create the method node/object pair as soon as we + * see the method declaration. This allows later pass1 parsing + * of invocations of the method (need to know the number of + * arguments.) + */ + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "LOADING-Method: State=%p Op=%p NamedObj=%p\n", + walk_state, op, op->named.node)); + + if (!acpi_ns_get_attached_object(op->named.node)) { + walk_state->operands[0] = + ACPI_CAST_PTR(void, op->named.node); + walk_state->num_operands = 1; + + status = + acpi_ds_create_operands(walk_state, + op->common.value. + arg); + if (ACPI_SUCCESS(status)) { + status = + acpi_ex_create_method(op->named. + data, + op->named. + length, + walk_state); + } + walk_state->operands[0] = NULL; + walk_state->num_operands = 0; + + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + break; + +#endif /* ACPI_NO_METHOD_EXECUTION */ + + default: + /* All NAMED_COMPLEX opcodes must be handled above */ + break; + } + break; + + case AML_CLASS_INTERNAL: + + /* case AML_INT_NAMEPATH_OP: */ + break; + + case AML_CLASS_METHOD_CALL: + + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "RESOLVING-MethodCall: State=%p Op=%p NamedObj=%p\n", + walk_state, op, node)); + + /* + * Lookup the method name and save the Node + */ + status = + acpi_ns_lookup(walk_state->scope_info, + arg->common.value.string, ACPI_TYPE_ANY, + ACPI_IMODE_LOAD_PASS2, + ACPI_NS_SEARCH_PARENT | + ACPI_NS_DONT_OPEN_SCOPE, walk_state, + &(new_node)); + if (ACPI_SUCCESS(status)) { + /* + * Make sure that what we found is indeed a method + * We didn't search for a method on purpose, to see if the name + * would resolve + */ + if (new_node->type != ACPI_TYPE_METHOD) { + status = AE_AML_OPERAND_TYPE; + } + + /* We could put the returned object (Node) on the object stack for + * later, but for now, we will put it in the "op" object that the + * parser uses, so we can get it again at the end of this scope + */ + op->common.node = new_node; + } else { + ACPI_ERROR_NAMESPACE(arg->common.value.string, status); + } + break; + + default: + break; + } + + cleanup: + + /* Remove the Node pushed at the very beginning */ + + walk_state->operands[0] = NULL; + walk_state->num_operands = 0; + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/dswscope.c b/drivers/acpi/acpica/dswscope.c new file mode 100644 index 000000000000..8030541a49f7 --- /dev/null +++ b/drivers/acpi/acpica/dswscope.c @@ -0,0 +1,214 @@ +/****************************************************************************** + * + * Module Name: dswscope - Scope stack manipulation + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_DISPATCHER +ACPI_MODULE_NAME("dswscope") + +/**************************************************************************** + * + * FUNCTION: acpi_ds_scope_stack_clear + * + * PARAMETERS: walk_state - Current state + * + * RETURN: None + * + * DESCRIPTION: Pop (and free) everything on the scope stack except the + * root scope object (which remains at the stack top.) + * + ***************************************************************************/ +void acpi_ds_scope_stack_clear(struct acpi_walk_state *walk_state) +{ + union acpi_generic_state *scope_info; + + ACPI_FUNCTION_NAME(ds_scope_stack_clear); + + while (walk_state->scope_info) { + + /* Pop a scope off the stack */ + + scope_info = walk_state->scope_info; + walk_state->scope_info = scope_info->scope.next; + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Popped object type (%s)\n", + acpi_ut_get_type_name(scope_info->common. + value))); + acpi_ut_delete_generic_state(scope_info); + } +} + +/**************************************************************************** + * + * FUNCTION: acpi_ds_scope_stack_push + * + * PARAMETERS: Node - Name to be made current + * Type - Type of frame being pushed + * walk_state - Current state + * + * RETURN: Status + * + * DESCRIPTION: Push the current scope on the scope stack, and make the + * passed Node current. + * + ***************************************************************************/ + +acpi_status +acpi_ds_scope_stack_push(struct acpi_namespace_node *node, + acpi_object_type type, + struct acpi_walk_state *walk_state) +{ + union acpi_generic_state *scope_info; + union acpi_generic_state *old_scope_info; + + ACPI_FUNCTION_TRACE(ds_scope_stack_push); + + if (!node) { + + /* Invalid scope */ + + ACPI_ERROR((AE_INFO, "Null scope parameter")); + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* Make sure object type is valid */ + + if (!acpi_ut_valid_object_type(type)) { + ACPI_WARNING((AE_INFO, "Invalid object type: 0x%X", type)); + } + + /* Allocate a new scope object */ + + scope_info = acpi_ut_create_generic_state(); + if (!scope_info) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* Init new scope object */ + + scope_info->common.descriptor_type = ACPI_DESC_TYPE_STATE_WSCOPE; + scope_info->scope.node = node; + scope_info->common.value = (u16) type; + + walk_state->scope_depth++; + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "[%.2d] Pushed scope ", + (u32) walk_state->scope_depth)); + + old_scope_info = walk_state->scope_info; + if (old_scope_info) { + ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, + "[%4.4s] (%s)", + acpi_ut_get_node_name(old_scope_info-> + scope.node), + acpi_ut_get_type_name(old_scope_info-> + common.value))); + } else { + ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, "[\\___] (%s)", "ROOT")); + } + + ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, + ", New scope -> [%4.4s] (%s)\n", + acpi_ut_get_node_name(scope_info->scope.node), + acpi_ut_get_type_name(scope_info->common.value))); + + /* Push new scope object onto stack */ + + acpi_ut_push_generic_state(&walk_state->scope_info, scope_info); + return_ACPI_STATUS(AE_OK); +} + +/**************************************************************************** + * + * FUNCTION: acpi_ds_scope_stack_pop + * + * PARAMETERS: walk_state - Current state + * + * RETURN: Status + * + * DESCRIPTION: Pop the scope stack once. + * + ***************************************************************************/ + +acpi_status acpi_ds_scope_stack_pop(struct acpi_walk_state *walk_state) +{ + union acpi_generic_state *scope_info; + union acpi_generic_state *new_scope_info; + + ACPI_FUNCTION_TRACE(ds_scope_stack_pop); + + /* + * Pop scope info object off the stack. + */ + scope_info = acpi_ut_pop_generic_state(&walk_state->scope_info); + if (!scope_info) { + return_ACPI_STATUS(AE_STACK_UNDERFLOW); + } + + walk_state->scope_depth--; + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "[%.2d] Popped scope [%4.4s] (%s), New scope -> ", + (u32) walk_state->scope_depth, + acpi_ut_get_node_name(scope_info->scope.node), + acpi_ut_get_type_name(scope_info->common.value))); + + new_scope_info = walk_state->scope_info; + if (new_scope_info) { + ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, + "[%4.4s] (%s)\n", + acpi_ut_get_node_name(new_scope_info-> + scope.node), + acpi_ut_get_type_name(new_scope_info-> + common.value))); + } else { + ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, "[\\___] (ROOT)\n")); + } + + acpi_ut_delete_generic_state(scope_info); + return_ACPI_STATUS(AE_OK); +} diff --git a/drivers/acpi/acpica/dswstate.c b/drivers/acpi/acpica/dswstate.c new file mode 100644 index 000000000000..a7543c43c151 --- /dev/null +++ b/drivers/acpi/acpica/dswstate.c @@ -0,0 +1,753 @@ +/****************************************************************************** + * + * Module Name: dswstate - Dispatcher parse tree walk management routines + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_DISPATCHER +ACPI_MODULE_NAME("dswstate") + + /* Local prototypes */ +static acpi_status acpi_ds_result_stack_push(struct acpi_walk_state *ws); +static acpi_status acpi_ds_result_stack_pop(struct acpi_walk_state *ws); + +/******************************************************************************* + * + * FUNCTION: acpi_ds_result_pop + * + * PARAMETERS: Object - Where to return the popped object + * walk_state - Current Walk state + * + * RETURN: Status + * + * DESCRIPTION: Pop an object off the top of this walk's result stack + * + ******************************************************************************/ + +acpi_status +acpi_ds_result_pop(union acpi_operand_object **object, + struct acpi_walk_state *walk_state) +{ + u32 index; + union acpi_generic_state *state; + acpi_status status; + + ACPI_FUNCTION_NAME(ds_result_pop); + + state = walk_state->results; + + /* Incorrect state of result stack */ + + if (state && !walk_state->result_count) { + ACPI_ERROR((AE_INFO, "No results on result stack")); + return (AE_AML_INTERNAL); + } + + if (!state && walk_state->result_count) { + ACPI_ERROR((AE_INFO, "No result state for result stack")); + return (AE_AML_INTERNAL); + } + + /* Empty result stack */ + + if (!state) { + ACPI_ERROR((AE_INFO, "Result stack is empty! State=%p", + walk_state)); + return (AE_AML_NO_RETURN_VALUE); + } + + /* Return object of the top element and clean that top element result stack */ + + walk_state->result_count--; + index = walk_state->result_count % ACPI_RESULTS_FRAME_OBJ_NUM; + + *object = state->results.obj_desc[index]; + if (!*object) { + ACPI_ERROR((AE_INFO, + "No result objects on result stack, State=%p", + walk_state)); + return (AE_AML_NO_RETURN_VALUE); + } + + state->results.obj_desc[index] = NULL; + if (index == 0) { + status = acpi_ds_result_stack_pop(walk_state); + if (ACPI_FAILURE(status)) { + return (status); + } + } + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Obj=%p [%s] Index=%X State=%p Num=%X\n", *object, + acpi_ut_get_object_type_name(*object), + index, walk_state, walk_state->result_count)); + + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_result_push + * + * PARAMETERS: Object - Where to return the popped object + * walk_state - Current Walk state + * + * RETURN: Status + * + * DESCRIPTION: Push an object onto the current result stack + * + ******************************************************************************/ + +acpi_status +acpi_ds_result_push(union acpi_operand_object * object, + struct acpi_walk_state * walk_state) +{ + union acpi_generic_state *state; + acpi_status status; + u32 index; + + ACPI_FUNCTION_NAME(ds_result_push); + + if (walk_state->result_count > walk_state->result_size) { + ACPI_ERROR((AE_INFO, "Result stack is full")); + return (AE_AML_INTERNAL); + } else if (walk_state->result_count == walk_state->result_size) { + + /* Extend the result stack */ + + status = acpi_ds_result_stack_push(walk_state); + if (ACPI_FAILURE(status)) { + ACPI_ERROR((AE_INFO, + "Failed to extend the result stack")); + return (status); + } + } + + if (!(walk_state->result_count < walk_state->result_size)) { + ACPI_ERROR((AE_INFO, "No free elements in result stack")); + return (AE_AML_INTERNAL); + } + + state = walk_state->results; + if (!state) { + ACPI_ERROR((AE_INFO, "No result stack frame during push")); + return (AE_AML_INTERNAL); + } + + if (!object) { + ACPI_ERROR((AE_INFO, + "Null Object! Obj=%p State=%p Num=%X", + object, walk_state, walk_state->result_count)); + return (AE_BAD_PARAMETER); + } + + /* Assign the address of object to the top free element of result stack */ + + index = walk_state->result_count % ACPI_RESULTS_FRAME_OBJ_NUM; + state->results.obj_desc[index] = object; + walk_state->result_count++; + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Obj=%p [%s] State=%p Num=%X Cur=%X\n", + object, + acpi_ut_get_object_type_name((union + acpi_operand_object *) + object), walk_state, + walk_state->result_count, + walk_state->current_result)); + + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_result_stack_push + * + * PARAMETERS: walk_state - Current Walk state + * + * RETURN: Status + * + * DESCRIPTION: Push an object onto the walk_state result stack + * + ******************************************************************************/ + +static acpi_status acpi_ds_result_stack_push(struct acpi_walk_state *walk_state) +{ + union acpi_generic_state *state; + + ACPI_FUNCTION_NAME(ds_result_stack_push); + + /* Check for stack overflow */ + + if (((u32) walk_state->result_size + ACPI_RESULTS_FRAME_OBJ_NUM) > + ACPI_RESULTS_OBJ_NUM_MAX) { + ACPI_ERROR((AE_INFO, "Result stack overflow: State=%p Num=%X", + walk_state, walk_state->result_size)); + return (AE_STACK_OVERFLOW); + } + + state = acpi_ut_create_generic_state(); + if (!state) { + return (AE_NO_MEMORY); + } + + state->common.descriptor_type = ACPI_DESC_TYPE_STATE_RESULT; + acpi_ut_push_generic_state(&walk_state->results, state); + + /* Increase the length of the result stack by the length of frame */ + + walk_state->result_size += ACPI_RESULTS_FRAME_OBJ_NUM; + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Results=%p State=%p\n", + state, walk_state)); + + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_result_stack_pop + * + * PARAMETERS: walk_state - Current Walk state + * + * RETURN: Status + * + * DESCRIPTION: Pop an object off of the walk_state result stack + * + ******************************************************************************/ + +static acpi_status acpi_ds_result_stack_pop(struct acpi_walk_state *walk_state) +{ + union acpi_generic_state *state; + + ACPI_FUNCTION_NAME(ds_result_stack_pop); + + /* Check for stack underflow */ + + if (walk_state->results == NULL) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Result stack underflow - State=%p\n", + walk_state)); + return (AE_AML_NO_OPERAND); + } + + if (walk_state->result_size < ACPI_RESULTS_FRAME_OBJ_NUM) { + ACPI_ERROR((AE_INFO, "Insufficient result stack size")); + return (AE_AML_INTERNAL); + } + + state = acpi_ut_pop_generic_state(&walk_state->results); + acpi_ut_delete_generic_state(state); + + /* Decrease the length of result stack by the length of frame */ + + walk_state->result_size -= ACPI_RESULTS_FRAME_OBJ_NUM; + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Result=%p RemainingResults=%X State=%p\n", + state, walk_state->result_count, walk_state)); + + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_obj_stack_push + * + * PARAMETERS: Object - Object to push + * walk_state - Current Walk state + * + * RETURN: Status + * + * DESCRIPTION: Push an object onto this walk's object/operand stack + * + ******************************************************************************/ + +acpi_status +acpi_ds_obj_stack_push(void *object, struct acpi_walk_state * walk_state) +{ + ACPI_FUNCTION_NAME(ds_obj_stack_push); + + /* Check for stack overflow */ + + if (walk_state->num_operands >= ACPI_OBJ_NUM_OPERANDS) { + ACPI_ERROR((AE_INFO, + "Object stack overflow! Obj=%p State=%p #Ops=%X", + object, walk_state, walk_state->num_operands)); + return (AE_STACK_OVERFLOW); + } + + /* Put the object onto the stack */ + + walk_state->operands[walk_state->operand_index] = object; + walk_state->num_operands++; + + /* For the usual order of filling the operand stack */ + + walk_state->operand_index++; + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Obj=%p [%s] State=%p #Ops=%X\n", + object, + acpi_ut_get_object_type_name((union + acpi_operand_object *) + object), walk_state, + walk_state->num_operands)); + + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_obj_stack_pop + * + * PARAMETERS: pop_count - Number of objects/entries to pop + * walk_state - Current Walk state + * + * RETURN: Status + * + * DESCRIPTION: Pop this walk's object stack. Objects on the stack are NOT + * deleted by this routine. + * + ******************************************************************************/ + +acpi_status +acpi_ds_obj_stack_pop(u32 pop_count, struct acpi_walk_state * walk_state) +{ + u32 i; + + ACPI_FUNCTION_NAME(ds_obj_stack_pop); + + for (i = 0; i < pop_count; i++) { + + /* Check for stack underflow */ + + if (walk_state->num_operands == 0) { + ACPI_ERROR((AE_INFO, + "Object stack underflow! Count=%X State=%p #Ops=%X", + pop_count, walk_state, + walk_state->num_operands)); + return (AE_STACK_UNDERFLOW); + } + + /* Just set the stack entry to null */ + + walk_state->num_operands--; + walk_state->operands[walk_state->num_operands] = NULL; + } + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Count=%X State=%p #Ops=%X\n", + pop_count, walk_state, walk_state->num_operands)); + + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_obj_stack_pop_and_delete + * + * PARAMETERS: pop_count - Number of objects/entries to pop + * walk_state - Current Walk state + * + * RETURN: Status + * + * DESCRIPTION: Pop this walk's object stack and delete each object that is + * popped off. + * + ******************************************************************************/ + +void +acpi_ds_obj_stack_pop_and_delete(u32 pop_count, + struct acpi_walk_state *walk_state) +{ + s32 i; + union acpi_operand_object *obj_desc; + + ACPI_FUNCTION_NAME(ds_obj_stack_pop_and_delete); + + if (pop_count == 0) { + return; + } + + for (i = (s32) pop_count - 1; i >= 0; i--) { + if (walk_state->num_operands == 0) { + return; + } + + /* Pop the stack and delete an object if present in this stack entry */ + + walk_state->num_operands--; + obj_desc = walk_state->operands[i]; + if (obj_desc) { + acpi_ut_remove_reference(walk_state->operands[i]); + walk_state->operands[i] = NULL; + } + } + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Count=%X State=%p #Ops=%X\n", + pop_count, walk_state, walk_state->num_operands)); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_get_current_walk_state + * + * PARAMETERS: Thread - Get current active state for this Thread + * + * RETURN: Pointer to the current walk state + * + * DESCRIPTION: Get the walk state that is at the head of the list (the "current" + * walk state.) + * + ******************************************************************************/ + +struct acpi_walk_state *acpi_ds_get_current_walk_state(struct acpi_thread_state + *thread) +{ + ACPI_FUNCTION_NAME(ds_get_current_walk_state); + + if (!thread) { + return (NULL); + } + + ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "Current WalkState %p\n", + thread->walk_state_list)); + + return (thread->walk_state_list); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_push_walk_state + * + * PARAMETERS: walk_state - State to push + * Thread - Thread state object + * + * RETURN: None + * + * DESCRIPTION: Place the Thread state at the head of the state list + * + ******************************************************************************/ + +void +acpi_ds_push_walk_state(struct acpi_walk_state *walk_state, + struct acpi_thread_state *thread) +{ + ACPI_FUNCTION_TRACE(ds_push_walk_state); + + walk_state->next = thread->walk_state_list; + thread->walk_state_list = walk_state; + + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_pop_walk_state + * + * PARAMETERS: Thread - Current thread state + * + * RETURN: A walk_state object popped from the thread's stack + * + * DESCRIPTION: Remove and return the walkstate object that is at the head of + * the walk stack for the given walk list. NULL indicates that + * the list is empty. + * + ******************************************************************************/ + +struct acpi_walk_state *acpi_ds_pop_walk_state(struct acpi_thread_state *thread) +{ + struct acpi_walk_state *walk_state; + + ACPI_FUNCTION_TRACE(ds_pop_walk_state); + + walk_state = thread->walk_state_list; + + if (walk_state) { + + /* Next walk state becomes the current walk state */ + + thread->walk_state_list = walk_state->next; + + /* + * Don't clear the NEXT field, this serves as an indicator + * that there is a parent WALK STATE + * Do Not: walk_state->Next = NULL; + */ + } + + return_PTR(walk_state); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_create_walk_state + * + * PARAMETERS: owner_id - ID for object creation + * Origin - Starting point for this walk + * method_desc - Method object + * Thread - Current thread state + * + * RETURN: Pointer to the new walk state. + * + * DESCRIPTION: Allocate and initialize a new walk state. The current walk + * state is set to this new state. + * + ******************************************************************************/ + +struct acpi_walk_state *acpi_ds_create_walk_state(acpi_owner_id owner_id, union acpi_parse_object + *origin, union acpi_operand_object + *method_desc, struct acpi_thread_state + *thread) +{ + struct acpi_walk_state *walk_state; + + ACPI_FUNCTION_TRACE(ds_create_walk_state); + + walk_state = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_walk_state)); + if (!walk_state) { + return_PTR(NULL); + } + + walk_state->descriptor_type = ACPI_DESC_TYPE_WALK; + walk_state->method_desc = method_desc; + walk_state->owner_id = owner_id; + walk_state->origin = origin; + walk_state->thread = thread; + + walk_state->parser_state.start_op = origin; + + /* Init the method args/local */ + +#if (!defined (ACPI_NO_METHOD_EXECUTION) && !defined (ACPI_CONSTANT_EVAL_ONLY)) + acpi_ds_method_data_init(walk_state); +#endif + + /* Put the new state at the head of the walk list */ + + if (thread) { + acpi_ds_push_walk_state(walk_state, thread); + } + + return_PTR(walk_state); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_init_aml_walk + * + * PARAMETERS: walk_state - New state to be initialized + * Op - Current parse op + * method_node - Control method NS node, if any + * aml_start - Start of AML + * aml_length - Length of AML + * Info - Method info block (params, etc.) + * pass_number - 1, 2, or 3 + * + * RETURN: Status + * + * DESCRIPTION: Initialize a walk state for a pass 1 or 2 parse tree walk + * + ******************************************************************************/ + +acpi_status +acpi_ds_init_aml_walk(struct acpi_walk_state *walk_state, + union acpi_parse_object *op, + struct acpi_namespace_node *method_node, + u8 * aml_start, + u32 aml_length, + struct acpi_evaluate_info *info, u8 pass_number) +{ + acpi_status status; + struct acpi_parse_state *parser_state = &walk_state->parser_state; + union acpi_parse_object *extra_op; + + ACPI_FUNCTION_TRACE(ds_init_aml_walk); + + walk_state->parser_state.aml = + walk_state->parser_state.aml_start = aml_start; + walk_state->parser_state.aml_end = + walk_state->parser_state.pkg_end = aml_start + aml_length; + + /* The next_op of the next_walk will be the beginning of the method */ + + walk_state->next_op = NULL; + walk_state->pass_number = pass_number; + + if (info) { + walk_state->params = info->parameters; + walk_state->caller_return_desc = &info->return_object; + } + + status = acpi_ps_init_scope(&walk_state->parser_state, op); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + if (method_node) { + walk_state->parser_state.start_node = method_node; + walk_state->walk_type = ACPI_WALK_METHOD; + walk_state->method_node = method_node; + walk_state->method_desc = + acpi_ns_get_attached_object(method_node); + + /* Push start scope on scope stack and make it current */ + + status = + acpi_ds_scope_stack_push(method_node, ACPI_TYPE_METHOD, + walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Init the method arguments */ + + status = acpi_ds_method_data_init_args(walk_state->params, + ACPI_METHOD_NUM_ARGS, + walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } else { + /* + * Setup the current scope. + * Find a Named Op that has a namespace node associated with it. + * search upwards from this Op. Current scope is the first + * Op with a namespace node. + */ + extra_op = parser_state->start_op; + while (extra_op && !extra_op->common.node) { + extra_op = extra_op->common.parent; + } + + if (!extra_op) { + parser_state->start_node = NULL; + } else { + parser_state->start_node = extra_op->common.node; + } + + if (parser_state->start_node) { + + /* Push start scope on scope stack and make it current */ + + status = + acpi_ds_scope_stack_push(parser_state->start_node, + parser_state->start_node-> + type, walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + } + + status = acpi_ds_init_callbacks(walk_state, pass_number); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_delete_walk_state + * + * PARAMETERS: walk_state - State to delete + * + * RETURN: Status + * + * DESCRIPTION: Delete a walk state including all internal data structures + * + ******************************************************************************/ + +void acpi_ds_delete_walk_state(struct acpi_walk_state *walk_state) +{ + union acpi_generic_state *state; + + ACPI_FUNCTION_TRACE_PTR(ds_delete_walk_state, walk_state); + + if (!walk_state) { + return; + } + + if (walk_state->descriptor_type != ACPI_DESC_TYPE_WALK) { + ACPI_ERROR((AE_INFO, "%p is not a valid walk state", + walk_state)); + return; + } + + /* There should not be any open scopes */ + + if (walk_state->parser_state.scope) { + ACPI_ERROR((AE_INFO, "%p walk still has a scope list", + walk_state)); + acpi_ps_cleanup_scope(&walk_state->parser_state); + } + + /* Always must free any linked control states */ + + while (walk_state->control_state) { + state = walk_state->control_state; + walk_state->control_state = state->common.next; + + acpi_ut_delete_generic_state(state); + } + + /* Always must free any linked parse states */ + + while (walk_state->scope_info) { + state = walk_state->scope_info; + walk_state->scope_info = state->common.next; + + acpi_ut_delete_generic_state(state); + } + + /* Always must free any stacked result states */ + + while (walk_state->results) { + state = walk_state->results; + walk_state->results = state->common.next; + + acpi_ut_delete_generic_state(state); + } + + ACPI_FREE(walk_state); + return_VOID; +} diff --git a/drivers/acpi/acpica/evevent.c b/drivers/acpi/acpica/evevent.c new file mode 100644 index 000000000000..86bf08365dad --- /dev/null +++ b/drivers/acpi/acpica/evevent.c @@ -0,0 +1,313 @@ +/****************************************************************************** + * + * Module Name: evevent - Fixed Event handling and dispatch + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_EVENTS +ACPI_MODULE_NAME("evevent") + +/* Local prototypes */ +static acpi_status acpi_ev_fixed_event_initialize(void); + +static u32 acpi_ev_fixed_event_dispatch(u32 event); + +/******************************************************************************* + * + * FUNCTION: acpi_ev_initialize_events + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Initialize global data structures for ACPI events (Fixed, GPE) + * + ******************************************************************************/ + +acpi_status acpi_ev_initialize_events(void) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(ev_initialize_events); + + /* + * Initialize the Fixed and General Purpose Events. This is done prior to + * enabling SCIs to prevent interrupts from occurring before the handlers + * are installed. + */ + status = acpi_ev_fixed_event_initialize(); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Unable to initialize fixed events")); + return_ACPI_STATUS(status); + } + + status = acpi_ev_gpe_initialize(); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Unable to initialize general purpose events")); + return_ACPI_STATUS(status); + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_install_fadt_gpes + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Completes initialization of the FADT-defined GPE blocks + * (0 and 1). This causes the _PRW methods to be run, so the HW + * must be fully initialized at this point, including global lock + * support. + * + ******************************************************************************/ + +acpi_status acpi_ev_install_fadt_gpes(void) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(ev_install_fadt_gpes); + + /* Namespace must be locked */ + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* FADT GPE Block 0 */ + + (void)acpi_ev_initialize_gpe_block(acpi_gbl_fadt_gpe_device, + acpi_gbl_gpe_fadt_blocks[0]); + + /* FADT GPE Block 1 */ + + (void)acpi_ev_initialize_gpe_block(acpi_gbl_fadt_gpe_device, + acpi_gbl_gpe_fadt_blocks[1]); + + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_install_xrupt_handlers + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Install interrupt handlers for the SCI and Global Lock + * + ******************************************************************************/ + +acpi_status acpi_ev_install_xrupt_handlers(void) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(ev_install_xrupt_handlers); + + /* Install the SCI handler */ + + status = acpi_ev_install_sci_handler(); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Unable to install System Control Interrupt handler")); + return_ACPI_STATUS(status); + } + + /* Install the handler for the Global Lock */ + + status = acpi_ev_init_global_lock_handler(); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Unable to initialize Global Lock handler")); + return_ACPI_STATUS(status); + } + + acpi_gbl_events_initialized = TRUE; + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_fixed_event_initialize + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Install the fixed event handlers and enable the fixed events. + * + ******************************************************************************/ + +static acpi_status acpi_ev_fixed_event_initialize(void) +{ + u32 i; + acpi_status status; + + /* + * Initialize the structure that keeps track of fixed event handlers and + * enable the fixed events. + */ + for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) { + acpi_gbl_fixed_event_handlers[i].handler = NULL; + acpi_gbl_fixed_event_handlers[i].context = NULL; + + /* Enable the fixed event */ + + if (acpi_gbl_fixed_event_info[i].enable_register_id != 0xFF) { + status = + acpi_set_register(acpi_gbl_fixed_event_info[i]. + enable_register_id, 0); + if (ACPI_FAILURE(status)) { + return (status); + } + } + } + + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_fixed_event_detect + * + * PARAMETERS: None + * + * RETURN: INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED + * + * DESCRIPTION: Checks the PM status register for active fixed events + * + ******************************************************************************/ + +u32 acpi_ev_fixed_event_detect(void) +{ + u32 int_status = ACPI_INTERRUPT_NOT_HANDLED; + u32 fixed_status; + u32 fixed_enable; + u32 i; + + ACPI_FUNCTION_NAME(ev_fixed_event_detect); + + /* + * Read the fixed feature status and enable registers, as all the cases + * depend on their values. Ignore errors here. + */ + (void)acpi_hw_register_read(ACPI_REGISTER_PM1_STATUS, &fixed_status); + (void)acpi_hw_register_read(ACPI_REGISTER_PM1_ENABLE, &fixed_enable); + + ACPI_DEBUG_PRINT((ACPI_DB_INTERRUPTS, + "Fixed Event Block: Enable %08X Status %08X\n", + fixed_enable, fixed_status)); + + /* + * Check for all possible Fixed Events and dispatch those that are active + */ + for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) { + + /* Both the status and enable bits must be on for this event */ + + if ((fixed_status & acpi_gbl_fixed_event_info[i]. + status_bit_mask) + && (fixed_enable & acpi_gbl_fixed_event_info[i]. + enable_bit_mask)) { + + /* Found an active (signalled) event */ + acpi_os_fixed_event_count(i); + int_status |= acpi_ev_fixed_event_dispatch(i); + } + } + + return (int_status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_fixed_event_dispatch + * + * PARAMETERS: Event - Event type + * + * RETURN: INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED + * + * DESCRIPTION: Clears the status bit for the requested event, calls the + * handler that previously registered for the event. + * + ******************************************************************************/ + +static u32 acpi_ev_fixed_event_dispatch(u32 event) +{ + + ACPI_FUNCTION_ENTRY(); + + /* Clear the status bit */ + + (void)acpi_set_register(acpi_gbl_fixed_event_info[event]. + status_register_id, 1); + + /* + * Make sure we've got a handler. If not, report an error. The event is + * disabled to prevent further interrupts. + */ + if (NULL == acpi_gbl_fixed_event_handlers[event].handler) { + (void)acpi_set_register(acpi_gbl_fixed_event_info[event]. + enable_register_id, 0); + + ACPI_ERROR((AE_INFO, + "No installed handler for fixed event [%08X]", + event)); + + return (ACPI_INTERRUPT_NOT_HANDLED); + } + + /* Invoke the Fixed Event handler */ + + return ((acpi_gbl_fixed_event_handlers[event]. + handler) (acpi_gbl_fixed_event_handlers[event].context)); +} diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c new file mode 100644 index 000000000000..d9779608dbd7 --- /dev/null +++ b/drivers/acpi/acpica/evgpe.c @@ -0,0 +1,722 @@ +/****************************************************************************** + * + * Module Name: evgpe - General Purpose Event handling and dispatch + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include + +#define _COMPONENT ACPI_EVENTS +ACPI_MODULE_NAME("evgpe") + +/* Local prototypes */ +static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context); + +/******************************************************************************* + * + * FUNCTION: acpi_ev_set_gpe_type + * + * PARAMETERS: gpe_event_info - GPE to set + * Type - New type + * + * RETURN: Status + * + * DESCRIPTION: Sets the new type for the GPE (wake, run, or wake/run) + * + ******************************************************************************/ + +acpi_status +acpi_ev_set_gpe_type(struct acpi_gpe_event_info *gpe_event_info, u8 type) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(ev_set_gpe_type); + + /* Validate type and update register enable masks */ + + switch (type) { + case ACPI_GPE_TYPE_WAKE: + case ACPI_GPE_TYPE_RUNTIME: + case ACPI_GPE_TYPE_WAKE_RUN: + break; + + default: + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* Disable the GPE if currently enabled */ + + status = acpi_ev_disable_gpe(gpe_event_info); + + /* Type was validated above */ + + gpe_event_info->flags &= ~ACPI_GPE_TYPE_MASK; /* Clear type bits */ + gpe_event_info->flags |= type; /* Insert type */ + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_update_gpe_enable_masks + * + * PARAMETERS: gpe_event_info - GPE to update + * Type - What to do: ACPI_GPE_DISABLE or + * ACPI_GPE_ENABLE + * + * RETURN: Status + * + * DESCRIPTION: Updates GPE register enable masks based on the GPE type + * + ******************************************************************************/ + +acpi_status +acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info, + u8 type) +{ + struct acpi_gpe_register_info *gpe_register_info; + u8 register_bit; + + ACPI_FUNCTION_TRACE(ev_update_gpe_enable_masks); + + gpe_register_info = gpe_event_info->register_info; + if (!gpe_register_info) { + return_ACPI_STATUS(AE_NOT_EXIST); + } + register_bit = (u8) + (1 << + (gpe_event_info->gpe_number - gpe_register_info->base_gpe_number)); + + /* 1) Disable case. Simply clear all enable bits */ + + if (type == ACPI_GPE_DISABLE) { + ACPI_CLEAR_BIT(gpe_register_info->enable_for_wake, + register_bit); + ACPI_CLEAR_BIT(gpe_register_info->enable_for_run, register_bit); + return_ACPI_STATUS(AE_OK); + } + + /* 2) Enable case. Set/Clear the appropriate enable bits */ + + switch (gpe_event_info->flags & ACPI_GPE_TYPE_MASK) { + case ACPI_GPE_TYPE_WAKE: + ACPI_SET_BIT(gpe_register_info->enable_for_wake, register_bit); + ACPI_CLEAR_BIT(gpe_register_info->enable_for_run, register_bit); + break; + + case ACPI_GPE_TYPE_RUNTIME: + ACPI_CLEAR_BIT(gpe_register_info->enable_for_wake, + register_bit); + ACPI_SET_BIT(gpe_register_info->enable_for_run, register_bit); + break; + + case ACPI_GPE_TYPE_WAKE_RUN: + ACPI_SET_BIT(gpe_register_info->enable_for_wake, register_bit); + ACPI_SET_BIT(gpe_register_info->enable_for_run, register_bit); + break; + + default: + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_enable_gpe + * + * PARAMETERS: gpe_event_info - GPE to enable + * write_to_hardware - Enable now, or just mark data structs + * (WAKE GPEs should be deferred) + * + * RETURN: Status + * + * DESCRIPTION: Enable a GPE based on the GPE type + * + ******************************************************************************/ + +acpi_status +acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info, + u8 write_to_hardware) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(ev_enable_gpe); + + /* Make sure HW enable masks are updated */ + + status = + acpi_ev_update_gpe_enable_masks(gpe_event_info, ACPI_GPE_ENABLE); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Mark wake-enabled or HW enable, or both */ + + switch (gpe_event_info->flags & ACPI_GPE_TYPE_MASK) { + case ACPI_GPE_TYPE_WAKE: + + ACPI_SET_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED); + break; + + case ACPI_GPE_TYPE_WAKE_RUN: + + ACPI_SET_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED); + + /*lint -fallthrough */ + + case ACPI_GPE_TYPE_RUNTIME: + + ACPI_SET_BIT(gpe_event_info->flags, ACPI_GPE_RUN_ENABLED); + + if (write_to_hardware) { + + /* Clear the GPE (of stale events), then enable it */ + + status = acpi_hw_clear_gpe(gpe_event_info); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Enable the requested runtime GPE */ + + status = acpi_hw_write_gpe_enable_reg(gpe_event_info); + } + break; + + default: + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_disable_gpe + * + * PARAMETERS: gpe_event_info - GPE to disable + * + * RETURN: Status + * + * DESCRIPTION: Disable a GPE based on the GPE type + * + ******************************************************************************/ + +acpi_status acpi_ev_disable_gpe(struct acpi_gpe_event_info *gpe_event_info) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(ev_disable_gpe); + + /* Make sure HW enable masks are updated */ + + status = + acpi_ev_update_gpe_enable_masks(gpe_event_info, ACPI_GPE_DISABLE); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Clear the appropriate enabled flags for this GPE */ + + switch (gpe_event_info->flags & ACPI_GPE_TYPE_MASK) { + case ACPI_GPE_TYPE_WAKE: + ACPI_CLEAR_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED); + break; + + case ACPI_GPE_TYPE_WAKE_RUN: + ACPI_CLEAR_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED); + + /* fallthrough */ + + case ACPI_GPE_TYPE_RUNTIME: + + /* Disable the requested runtime GPE */ + + ACPI_CLEAR_BIT(gpe_event_info->flags, ACPI_GPE_RUN_ENABLED); + break; + + default: + break; + } + + /* + * Even if we don't know the GPE type, make sure that we always + * disable it. low_disable_gpe will just clear the enable bit for this + * GPE and write it. It will not write out the current GPE enable mask, + * since this may inadvertently enable GPEs too early, if a rogue GPE has + * come in during ACPICA initialization - possibly as a result of AML or + * other code that has enabled the GPE. + */ + status = acpi_hw_low_disable_gpe(gpe_event_info); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_get_gpe_event_info + * + * PARAMETERS: gpe_device - Device node. NULL for GPE0/GPE1 + * gpe_number - Raw GPE number + * + * RETURN: A GPE event_info struct. NULL if not a valid GPE + * + * DESCRIPTION: Returns the event_info struct associated with this GPE. + * Validates the gpe_block and the gpe_number + * + * Should be called only when the GPE lists are semaphore locked + * and not subject to change. + * + ******************************************************************************/ + +struct acpi_gpe_event_info *acpi_ev_get_gpe_event_info(acpi_handle gpe_device, + u32 gpe_number) +{ + union acpi_operand_object *obj_desc; + struct acpi_gpe_block_info *gpe_block; + u32 i; + + ACPI_FUNCTION_ENTRY(); + + /* A NULL gpe_block means use the FADT-defined GPE block(s) */ + + if (!gpe_device) { + + /* Examine GPE Block 0 and 1 (These blocks are permanent) */ + + for (i = 0; i < ACPI_MAX_GPE_BLOCKS; i++) { + gpe_block = acpi_gbl_gpe_fadt_blocks[i]; + if (gpe_block) { + if ((gpe_number >= gpe_block->block_base_number) + && (gpe_number < + gpe_block->block_base_number + + (gpe_block->register_count * 8))) { + return (&gpe_block-> + event_info[gpe_number - + gpe_block-> + block_base_number]); + } + } + } + + /* The gpe_number was not in the range of either FADT GPE block */ + + return (NULL); + } + + /* A Non-NULL gpe_device means this is a GPE Block Device */ + + obj_desc = acpi_ns_get_attached_object((struct acpi_namespace_node *) + gpe_device); + if (!obj_desc || !obj_desc->device.gpe_block) { + return (NULL); + } + + gpe_block = obj_desc->device.gpe_block; + + if ((gpe_number >= gpe_block->block_base_number) && + (gpe_number < + gpe_block->block_base_number + (gpe_block->register_count * 8))) { + return (&gpe_block-> + event_info[gpe_number - gpe_block->block_base_number]); + } + + return (NULL); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_gpe_detect + * + * PARAMETERS: gpe_xrupt_list - Interrupt block for this interrupt. + * Can have multiple GPE blocks attached. + * + * RETURN: INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED + * + * DESCRIPTION: Detect if any GP events have occurred. This function is + * executed at interrupt level. + * + ******************************************************************************/ + +u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list) +{ + acpi_status status; + struct acpi_gpe_block_info *gpe_block; + struct acpi_gpe_register_info *gpe_register_info; + u32 int_status = ACPI_INTERRUPT_NOT_HANDLED; + u8 enabled_status_byte; + u32 status_reg; + u32 enable_reg; + acpi_cpu_flags flags; + u32 i; + u32 j; + + ACPI_FUNCTION_NAME(ev_gpe_detect); + + /* Check for the case where there are no GPEs */ + + if (!gpe_xrupt_list) { + return (int_status); + } + + /* + * We need to obtain the GPE lock for both the data structs and registers + * Note: Not necessary to obtain the hardware lock, since the GPE + * registers are owned by the gpe_lock. + */ + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); + + /* Examine all GPE blocks attached to this interrupt level */ + + gpe_block = gpe_xrupt_list->gpe_block_list_head; + while (gpe_block) { + /* + * Read all of the 8-bit GPE status and enable registers in this GPE + * block, saving all of them. Find all currently active GP events. + */ + for (i = 0; i < gpe_block->register_count; i++) { + + /* Get the next status/enable pair */ + + gpe_register_info = &gpe_block->register_info[i]; + + /* Read the Status Register */ + + status = + acpi_read(&status_reg, + &gpe_register_info->status_address); + if (ACPI_FAILURE(status)) { + goto unlock_and_exit; + } + + /* Read the Enable Register */ + + status = + acpi_read(&enable_reg, + &gpe_register_info->enable_address); + if (ACPI_FAILURE(status)) { + goto unlock_and_exit; + } + + ACPI_DEBUG_PRINT((ACPI_DB_INTERRUPTS, + "Read GPE Register at GPE%X: Status=%02X, Enable=%02X\n", + gpe_register_info->base_gpe_number, + status_reg, enable_reg)); + + /* Check if there is anything active at all in this register */ + + enabled_status_byte = (u8) (status_reg & enable_reg); + if (!enabled_status_byte) { + + /* No active GPEs in this register, move on */ + + continue; + } + + /* Now look at the individual GPEs in this byte register */ + + for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) { + + /* Examine one GPE bit */ + + if (enabled_status_byte & (1 << j)) { + /* + * Found an active GPE. Dispatch the event to a handler + * or method. + */ + int_status |= + acpi_ev_gpe_dispatch(&gpe_block-> + event_info[((acpi_size) i * ACPI_GPE_REGISTER_WIDTH) + j], j + gpe_register_info->base_gpe_number); + } + } + } + + gpe_block = gpe_block->next; + } + + unlock_and_exit: + + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); + return (int_status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_asynch_execute_gpe_method + * + * PARAMETERS: Context (gpe_event_info) - Info for this GPE + * + * RETURN: None + * + * DESCRIPTION: Perform the actual execution of a GPE control method. This + * function is called from an invocation of acpi_os_execute and + * therefore does NOT execute at interrupt level - so that + * the control method itself is not executed in the context of + * an interrupt handler. + * + ******************************************************************************/ +static void acpi_ev_asynch_enable_gpe(void *context); + +static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context) +{ + struct acpi_gpe_event_info *gpe_event_info = (void *)context; + acpi_status status; + struct acpi_gpe_event_info local_gpe_event_info; + struct acpi_evaluate_info *info; + + ACPI_FUNCTION_TRACE(ev_asynch_execute_gpe_method); + + status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); + if (ACPI_FAILURE(status)) { + return_VOID; + } + + /* Must revalidate the gpe_number/gpe_block */ + + if (!acpi_ev_valid_gpe_event(gpe_event_info)) { + status = acpi_ut_release_mutex(ACPI_MTX_EVENTS); + return_VOID; + } + + /* Set the GPE flags for return to enabled state */ + + (void)acpi_ev_enable_gpe(gpe_event_info, FALSE); + + /* + * Take a snapshot of the GPE info for this level - we copy the info to + * prevent a race condition with remove_handler/remove_block. + */ + ACPI_MEMCPY(&local_gpe_event_info, gpe_event_info, + sizeof(struct acpi_gpe_event_info)); + + status = acpi_ut_release_mutex(ACPI_MTX_EVENTS); + if (ACPI_FAILURE(status)) { + return_VOID; + } + + /* + * Must check for control method type dispatch one more time to avoid a + * race with ev_gpe_install_handler + */ + if ((local_gpe_event_info.flags & ACPI_GPE_DISPATCH_MASK) == + ACPI_GPE_DISPATCH_METHOD) { + + /* Allocate the evaluation information block */ + + info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info)); + if (!info) { + status = AE_NO_MEMORY; + } else { + /* + * Invoke the GPE Method (_Lxx, _Exx) i.e., evaluate the _Lxx/_Exx + * control method that corresponds to this GPE + */ + info->prefix_node = + local_gpe_event_info.dispatch.method_node; + info->flags = ACPI_IGNORE_RETURN_VALUE; + + status = acpi_ns_evaluate(info); + ACPI_FREE(info); + } + + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "while evaluating GPE method [%4.4s]", + acpi_ut_get_node_name + (local_gpe_event_info.dispatch. + method_node))); + } + } + /* Defer enabling of GPE until all notify handlers are done */ + acpi_os_execute(OSL_NOTIFY_HANDLER, acpi_ev_asynch_enable_gpe, + gpe_event_info); + return_VOID; +} + +static void acpi_ev_asynch_enable_gpe(void *context) +{ + struct acpi_gpe_event_info *gpe_event_info = context; + acpi_status status; + if ((gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK) == + ACPI_GPE_LEVEL_TRIGGERED) { + /* + * GPE is level-triggered, we clear the GPE status bit after handling + * the event. + */ + status = acpi_hw_clear_gpe(gpe_event_info); + if (ACPI_FAILURE(status)) { + return_VOID; + } + } + + /* Enable this GPE */ + (void)acpi_hw_write_gpe_enable_reg(gpe_event_info); + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_gpe_dispatch + * + * PARAMETERS: gpe_event_info - Info for this GPE + * gpe_number - Number relative to the parent GPE block + * + * RETURN: INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED + * + * DESCRIPTION: Dispatch a General Purpose Event to either a function (e.g. EC) + * or method (e.g. _Lxx/_Exx) handler. + * + * This function executes at interrupt level. + * + ******************************************************************************/ + +u32 +acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(ev_gpe_dispatch); + + acpi_os_gpe_count(gpe_number); + + /* + * If edge-triggered, clear the GPE status bit now. Note that + * level-triggered events are cleared after the GPE is serviced. + */ + if ((gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK) == + ACPI_GPE_EDGE_TRIGGERED) { + status = acpi_hw_clear_gpe(gpe_event_info); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Unable to clear GPE[%2X]", + gpe_number)); + return_UINT32(ACPI_INTERRUPT_NOT_HANDLED); + } + } + + /* + * Dispatch the GPE to either an installed handler, or the control method + * associated with this GPE (_Lxx or _Exx). If a handler exists, we invoke + * it and do not attempt to run the method. If there is neither a handler + * nor a method, we disable this GPE to prevent further such pointless + * events from firing. + */ + switch (gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) { + case ACPI_GPE_DISPATCH_HANDLER: + + /* + * Invoke the installed handler (at interrupt level) + * Ignore return status for now. + * TBD: leave GPE disabled on error? + */ + (void)gpe_event_info->dispatch.handler->address(gpe_event_info-> + dispatch. + handler-> + context); + + /* It is now safe to clear level-triggered events. */ + + if ((gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK) == + ACPI_GPE_LEVEL_TRIGGERED) { + status = acpi_hw_clear_gpe(gpe_event_info); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Unable to clear GPE[%2X]", + gpe_number)); + return_UINT32(ACPI_INTERRUPT_NOT_HANDLED); + } + } + break; + + case ACPI_GPE_DISPATCH_METHOD: + + /* + * Disable the GPE, so it doesn't keep firing before the method has a + * chance to run (it runs asynchronously with interrupts enabled). + */ + status = acpi_ev_disable_gpe(gpe_event_info); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Unable to disable GPE[%2X]", + gpe_number)); + return_UINT32(ACPI_INTERRUPT_NOT_HANDLED); + } + + /* + * Execute the method associated with the GPE + * NOTE: Level-triggered GPEs are cleared after the method completes. + */ + status = acpi_os_execute(OSL_GPE_HANDLER, + acpi_ev_asynch_execute_gpe_method, + gpe_event_info); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Unable to queue handler for GPE[%2X] - event disabled", + gpe_number)); + } + break; + + default: + + /* No handler or method to run! */ + + ACPI_ERROR((AE_INFO, + "No handler or method for GPE[%2X], disabling event", + gpe_number)); + + /* + * Disable the GPE. The GPE will remain disabled until the ACPICA + * Core Subsystem is restarted, or a handler is installed. + */ + status = acpi_ev_disable_gpe(gpe_event_info); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Unable to disable GPE[%2X]", + gpe_number)); + return_UINT32(ACPI_INTERRUPT_NOT_HANDLED); + } + break; + } + + return_UINT32(ACPI_INTERRUPT_HANDLED); +} diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c new file mode 100644 index 000000000000..2a8d1856038f --- /dev/null +++ b/drivers/acpi/acpica/evgpeblk.c @@ -0,0 +1,1227 @@ +/****************************************************************************** + * + * Module Name: evgpeblk - GPE block creation and initialization. + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include + +#define _COMPONENT ACPI_EVENTS +ACPI_MODULE_NAME("evgpeblk") + +/* Local prototypes */ +static acpi_status +acpi_ev_save_method_info(acpi_handle obj_handle, + u32 level, void *obj_desc, void **return_value); + +static acpi_status +acpi_ev_match_prw_and_gpe(acpi_handle obj_handle, + u32 level, void *info, void **return_value); + +static struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32 + interrupt_number); + +static acpi_status +acpi_ev_delete_gpe_xrupt(struct acpi_gpe_xrupt_info *gpe_xrupt); + +static acpi_status +acpi_ev_install_gpe_block(struct acpi_gpe_block_info *gpe_block, + u32 interrupt_number); + +static acpi_status +acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block); + +/******************************************************************************* + * + * FUNCTION: acpi_ev_valid_gpe_event + * + * PARAMETERS: gpe_event_info - Info for this GPE + * + * RETURN: TRUE if the gpe_event is valid + * + * DESCRIPTION: Validate a GPE event. DO NOT CALL FROM INTERRUPT LEVEL. + * Should be called only when the GPE lists are semaphore locked + * and not subject to change. + * + ******************************************************************************/ + +u8 acpi_ev_valid_gpe_event(struct acpi_gpe_event_info *gpe_event_info) +{ + struct acpi_gpe_xrupt_info *gpe_xrupt_block; + struct acpi_gpe_block_info *gpe_block; + + ACPI_FUNCTION_ENTRY(); + + /* No need for spin lock since we are not changing any list elements */ + + /* Walk the GPE interrupt levels */ + + gpe_xrupt_block = acpi_gbl_gpe_xrupt_list_head; + while (gpe_xrupt_block) { + gpe_block = gpe_xrupt_block->gpe_block_list_head; + + /* Walk the GPE blocks on this interrupt level */ + + while (gpe_block) { + if ((&gpe_block->event_info[0] <= gpe_event_info) && + (&gpe_block-> + event_info[((acpi_size) gpe_block-> + register_count) * 8] > + gpe_event_info)) { + return (TRUE); + } + + gpe_block = gpe_block->next; + } + + gpe_xrupt_block = gpe_xrupt_block->next; + } + + return (FALSE); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_walk_gpe_list + * + * PARAMETERS: gpe_walk_callback - Routine called for each GPE block + * Context - Value passed to callback + * + * RETURN: Status + * + * DESCRIPTION: Walk the GPE lists. + * + ******************************************************************************/ + +acpi_status +acpi_ev_walk_gpe_list(acpi_gpe_callback gpe_walk_callback, void *context) +{ + struct acpi_gpe_block_info *gpe_block; + struct acpi_gpe_xrupt_info *gpe_xrupt_info; + acpi_status status = AE_OK; + acpi_cpu_flags flags; + + ACPI_FUNCTION_TRACE(ev_walk_gpe_list); + + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); + + /* Walk the interrupt level descriptor list */ + + gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head; + while (gpe_xrupt_info) { + + /* Walk all Gpe Blocks attached to this interrupt level */ + + gpe_block = gpe_xrupt_info->gpe_block_list_head; + while (gpe_block) { + + /* One callback per GPE block */ + + status = + gpe_walk_callback(gpe_xrupt_info, gpe_block, + context); + if (ACPI_FAILURE(status)) { + if (status == AE_CTRL_END) { /* Callback abort */ + status = AE_OK; + } + goto unlock_and_exit; + } + + gpe_block = gpe_block->next; + } + + gpe_xrupt_info = gpe_xrupt_info->next; + } + + unlock_and_exit: + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_delete_gpe_handlers + * + * PARAMETERS: gpe_xrupt_info - GPE Interrupt info + * gpe_block - Gpe Block info + * + * RETURN: Status + * + * DESCRIPTION: Delete all Handler objects found in the GPE data structs. + * Used only prior to termination. + * + ******************************************************************************/ + +acpi_status +acpi_ev_delete_gpe_handlers(struct acpi_gpe_xrupt_info *gpe_xrupt_info, + struct acpi_gpe_block_info *gpe_block, + void *context) +{ + struct acpi_gpe_event_info *gpe_event_info; + u32 i; + u32 j; + + ACPI_FUNCTION_TRACE(ev_delete_gpe_handlers); + + /* Examine each GPE Register within the block */ + + for (i = 0; i < gpe_block->register_count; i++) { + + /* Now look at the individual GPEs in this byte register */ + + for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) { + gpe_event_info = + &gpe_block-> + event_info[((acpi_size) i * + ACPI_GPE_REGISTER_WIDTH) + j]; + + if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) == + ACPI_GPE_DISPATCH_HANDLER) { + ACPI_FREE(gpe_event_info->dispatch.handler); + gpe_event_info->dispatch.handler = NULL; + gpe_event_info->flags &= + ~ACPI_GPE_DISPATCH_MASK; + } + } + } + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_save_method_info + * + * PARAMETERS: Callback from walk_namespace + * + * RETURN: Status + * + * DESCRIPTION: Called from acpi_walk_namespace. Expects each object to be a + * control method under the _GPE portion of the namespace. + * Extract the name and GPE type from the object, saving this + * information for quick lookup during GPE dispatch + * + * The name of each GPE control method is of the form: + * "_Lxx" or "_Exx" + * Where: + * L - means that the GPE is level triggered + * E - means that the GPE is edge triggered + * xx - is the GPE number [in HEX] + * + ******************************************************************************/ + +static acpi_status +acpi_ev_save_method_info(acpi_handle obj_handle, + u32 level, void *obj_desc, void **return_value) +{ + struct acpi_gpe_block_info *gpe_block = (void *)obj_desc; + struct acpi_gpe_event_info *gpe_event_info; + u32 gpe_number; + char name[ACPI_NAME_SIZE + 1]; + u8 type; + acpi_status status; + + ACPI_FUNCTION_TRACE(ev_save_method_info); + + /* + * _Lxx and _Exx GPE method support + * + * 1) Extract the name from the object and convert to a string + */ + ACPI_MOVE_32_TO_32(name, + &((struct acpi_namespace_node *)obj_handle)->name. + integer); + name[ACPI_NAME_SIZE] = 0; + + /* + * 2) Edge/Level determination is based on the 2nd character + * of the method name + * + * NOTE: Default GPE type is RUNTIME. May be changed later to WAKE + * if a _PRW object is found that points to this GPE. + */ + switch (name[1]) { + case 'L': + type = ACPI_GPE_LEVEL_TRIGGERED; + break; + + case 'E': + type = ACPI_GPE_EDGE_TRIGGERED; + break; + + default: + /* Unknown method type, just ignore it! */ + + ACPI_DEBUG_PRINT((ACPI_DB_LOAD, + "Ignoring unknown GPE method type: %s (name not of form _Lxx or _Exx)", + name)); + return_ACPI_STATUS(AE_OK); + } + + /* Convert the last two characters of the name to the GPE Number */ + + gpe_number = ACPI_STRTOUL(&name[2], NULL, 16); + if (gpe_number == ACPI_UINT32_MAX) { + + /* Conversion failed; invalid method, just ignore it */ + + ACPI_DEBUG_PRINT((ACPI_DB_LOAD, + "Could not extract GPE number from name: %s (name is not of form _Lxx or _Exx)", + name)); + return_ACPI_STATUS(AE_OK); + } + + /* Ensure that we have a valid GPE number for this GPE block */ + + if ((gpe_number < gpe_block->block_base_number) || + (gpe_number >= + (gpe_block->block_base_number + + (gpe_block->register_count * 8)))) { + /* + * Not valid for this GPE block, just ignore it. However, it may be + * valid for a different GPE block, since GPE0 and GPE1 methods both + * appear under \_GPE. + */ + return_ACPI_STATUS(AE_OK); + } + + /* + * Now we can add this information to the gpe_event_info block for use + * during dispatch of this GPE. Default type is RUNTIME, although this may + * change when the _PRW methods are executed later. + */ + gpe_event_info = + &gpe_block->event_info[gpe_number - gpe_block->block_base_number]; + + gpe_event_info->flags = (u8) + (type | ACPI_GPE_DISPATCH_METHOD | ACPI_GPE_TYPE_RUNTIME); + + gpe_event_info->dispatch.method_node = + (struct acpi_namespace_node *)obj_handle; + + /* Update enable mask, but don't enable the HW GPE as of yet */ + + status = acpi_ev_enable_gpe(gpe_event_info, FALSE); + + ACPI_DEBUG_PRINT((ACPI_DB_LOAD, + "Registered GPE method %s as GPE number 0x%.2X\n", + name, gpe_number)); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_match_prw_and_gpe + * + * PARAMETERS: Callback from walk_namespace + * + * RETURN: Status. NOTE: We ignore errors so that the _PRW walk is + * not aborted on a single _PRW failure. + * + * DESCRIPTION: Called from acpi_walk_namespace. Expects each object to be a + * Device. Run the _PRW method. If present, extract the GPE + * number and mark the GPE as a WAKE GPE. + * + ******************************************************************************/ + +static acpi_status +acpi_ev_match_prw_and_gpe(acpi_handle obj_handle, + u32 level, void *info, void **return_value) +{ + struct acpi_gpe_walk_info *gpe_info = (void *)info; + struct acpi_namespace_node *gpe_device; + struct acpi_gpe_block_info *gpe_block; + struct acpi_namespace_node *target_gpe_device; + struct acpi_gpe_event_info *gpe_event_info; + union acpi_operand_object *pkg_desc; + union acpi_operand_object *obj_desc; + u32 gpe_number; + acpi_status status; + + ACPI_FUNCTION_TRACE(ev_match_prw_and_gpe); + + /* Check for a _PRW method under this device */ + + status = acpi_ut_evaluate_object(obj_handle, METHOD_NAME__PRW, + ACPI_BTYPE_PACKAGE, &pkg_desc); + if (ACPI_FAILURE(status)) { + + /* Ignore all errors from _PRW, we don't want to abort the subsystem */ + + return_ACPI_STATUS(AE_OK); + } + + /* The returned _PRW package must have at least two elements */ + + if (pkg_desc->package.count < 2) { + goto cleanup; + } + + /* Extract pointers from the input context */ + + gpe_device = gpe_info->gpe_device; + gpe_block = gpe_info->gpe_block; + + /* + * The _PRW object must return a package, we are only interested in the + * first element + */ + obj_desc = pkg_desc->package.elements[0]; + + if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) { + + /* Use FADT-defined GPE device (from definition of _PRW) */ + + target_gpe_device = acpi_gbl_fadt_gpe_device; + + /* Integer is the GPE number in the FADT described GPE blocks */ + + gpe_number = (u32) obj_desc->integer.value; + } else if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_PACKAGE) { + + /* Package contains a GPE reference and GPE number within a GPE block */ + + if ((obj_desc->package.count < 2) || + (ACPI_GET_OBJECT_TYPE(obj_desc->package.elements[0]) != + ACPI_TYPE_LOCAL_REFERENCE) + || (ACPI_GET_OBJECT_TYPE(obj_desc->package.elements[1]) != + ACPI_TYPE_INTEGER)) { + goto cleanup; + } + + /* Get GPE block reference and decode */ + + target_gpe_device = + obj_desc->package.elements[0]->reference.node; + gpe_number = (u32) obj_desc->package.elements[1]->integer.value; + } else { + /* Unknown type, just ignore it */ + + goto cleanup; + } + + /* + * Is this GPE within this block? + * + * TRUE if and only if these conditions are true: + * 1) The GPE devices match. + * 2) The GPE index(number) is within the range of the Gpe Block + * associated with the GPE device. + */ + if ((gpe_device == target_gpe_device) && + (gpe_number >= gpe_block->block_base_number) && + (gpe_number < + gpe_block->block_base_number + (gpe_block->register_count * 8))) { + gpe_event_info = + &gpe_block->event_info[gpe_number - + gpe_block->block_base_number]; + + /* Mark GPE for WAKE-ONLY but WAKE_DISABLED */ + + gpe_event_info->flags &= + ~(ACPI_GPE_WAKE_ENABLED | ACPI_GPE_RUN_ENABLED); + + status = + acpi_ev_set_gpe_type(gpe_event_info, ACPI_GPE_TYPE_WAKE); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + status = + acpi_ev_update_gpe_enable_masks(gpe_event_info, + ACPI_GPE_DISABLE); + } + + cleanup: + acpi_ut_remove_reference(pkg_desc); + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_get_gpe_xrupt_block + * + * PARAMETERS: interrupt_number - Interrupt for a GPE block + * + * RETURN: A GPE interrupt block + * + * DESCRIPTION: Get or Create a GPE interrupt block. There is one interrupt + * block per unique interrupt level used for GPEs. Should be + * called only when the GPE lists are semaphore locked and not + * subject to change. + * + ******************************************************************************/ + +static struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32 + interrupt_number) +{ + struct acpi_gpe_xrupt_info *next_gpe_xrupt; + struct acpi_gpe_xrupt_info *gpe_xrupt; + acpi_status status; + acpi_cpu_flags flags; + + ACPI_FUNCTION_TRACE(ev_get_gpe_xrupt_block); + + /* No need for lock since we are not changing any list elements here */ + + next_gpe_xrupt = acpi_gbl_gpe_xrupt_list_head; + while (next_gpe_xrupt) { + if (next_gpe_xrupt->interrupt_number == interrupt_number) { + return_PTR(next_gpe_xrupt); + } + + next_gpe_xrupt = next_gpe_xrupt->next; + } + + /* Not found, must allocate a new xrupt descriptor */ + + gpe_xrupt = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_gpe_xrupt_info)); + if (!gpe_xrupt) { + return_PTR(NULL); + } + + gpe_xrupt->interrupt_number = interrupt_number; + + /* Install new interrupt descriptor with spin lock */ + + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); + if (acpi_gbl_gpe_xrupt_list_head) { + next_gpe_xrupt = acpi_gbl_gpe_xrupt_list_head; + while (next_gpe_xrupt->next) { + next_gpe_xrupt = next_gpe_xrupt->next; + } + + next_gpe_xrupt->next = gpe_xrupt; + gpe_xrupt->previous = next_gpe_xrupt; + } else { + acpi_gbl_gpe_xrupt_list_head = gpe_xrupt; + } + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); + + /* Install new interrupt handler if not SCI_INT */ + + if (interrupt_number != acpi_gbl_FADT.sci_interrupt) { + status = acpi_os_install_interrupt_handler(interrupt_number, + acpi_ev_gpe_xrupt_handler, + gpe_xrupt); + if (ACPI_FAILURE(status)) { + ACPI_ERROR((AE_INFO, + "Could not install GPE interrupt handler at level 0x%X", + interrupt_number)); + return_PTR(NULL); + } + } + + return_PTR(gpe_xrupt); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_delete_gpe_xrupt + * + * PARAMETERS: gpe_xrupt - A GPE interrupt info block + * + * RETURN: Status + * + * DESCRIPTION: Remove and free a gpe_xrupt block. Remove an associated + * interrupt handler if not the SCI interrupt. + * + ******************************************************************************/ + +static acpi_status +acpi_ev_delete_gpe_xrupt(struct acpi_gpe_xrupt_info *gpe_xrupt) +{ + acpi_status status; + acpi_cpu_flags flags; + + ACPI_FUNCTION_TRACE(ev_delete_gpe_xrupt); + + /* We never want to remove the SCI interrupt handler */ + + if (gpe_xrupt->interrupt_number == acpi_gbl_FADT.sci_interrupt) { + gpe_xrupt->gpe_block_list_head = NULL; + return_ACPI_STATUS(AE_OK); + } + + /* Disable this interrupt */ + + status = + acpi_os_remove_interrupt_handler(gpe_xrupt->interrupt_number, + acpi_ev_gpe_xrupt_handler); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Unlink the interrupt block with lock */ + + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); + if (gpe_xrupt->previous) { + gpe_xrupt->previous->next = gpe_xrupt->next; + } else { + /* No previous, update list head */ + + acpi_gbl_gpe_xrupt_list_head = gpe_xrupt->next; + } + + if (gpe_xrupt->next) { + gpe_xrupt->next->previous = gpe_xrupt->previous; + } + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); + + /* Free the block */ + + ACPI_FREE(gpe_xrupt); + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_install_gpe_block + * + * PARAMETERS: gpe_block - New GPE block + * interrupt_number - Xrupt to be associated with this + * GPE block + * + * RETURN: Status + * + * DESCRIPTION: Install new GPE block with mutex support + * + ******************************************************************************/ + +static acpi_status +acpi_ev_install_gpe_block(struct acpi_gpe_block_info *gpe_block, + u32 interrupt_number) +{ + struct acpi_gpe_block_info *next_gpe_block; + struct acpi_gpe_xrupt_info *gpe_xrupt_block; + acpi_status status; + acpi_cpu_flags flags; + + ACPI_FUNCTION_TRACE(ev_install_gpe_block); + + status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + gpe_xrupt_block = acpi_ev_get_gpe_xrupt_block(interrupt_number); + if (!gpe_xrupt_block) { + status = AE_NO_MEMORY; + goto unlock_and_exit; + } + + /* Install the new block at the end of the list with lock */ + + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); + if (gpe_xrupt_block->gpe_block_list_head) { + next_gpe_block = gpe_xrupt_block->gpe_block_list_head; + while (next_gpe_block->next) { + next_gpe_block = next_gpe_block->next; + } + + next_gpe_block->next = gpe_block; + gpe_block->previous = next_gpe_block; + } else { + gpe_xrupt_block->gpe_block_list_head = gpe_block; + } + + gpe_block->xrupt_block = gpe_xrupt_block; + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); + + unlock_and_exit: + status = acpi_ut_release_mutex(ACPI_MTX_EVENTS); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_delete_gpe_block + * + * PARAMETERS: gpe_block - Existing GPE block + * + * RETURN: Status + * + * DESCRIPTION: Remove a GPE block + * + ******************************************************************************/ + +acpi_status acpi_ev_delete_gpe_block(struct acpi_gpe_block_info *gpe_block) +{ + acpi_status status; + acpi_cpu_flags flags; + + ACPI_FUNCTION_TRACE(ev_install_gpe_block); + + status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Disable all GPEs in this block */ + + status = + acpi_hw_disable_gpe_block(gpe_block->xrupt_block, gpe_block, NULL); + + if (!gpe_block->previous && !gpe_block->next) { + + /* This is the last gpe_block on this interrupt */ + + status = acpi_ev_delete_gpe_xrupt(gpe_block->xrupt_block); + if (ACPI_FAILURE(status)) { + goto unlock_and_exit; + } + } else { + /* Remove the block on this interrupt with lock */ + + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); + if (gpe_block->previous) { + gpe_block->previous->next = gpe_block->next; + } else { + gpe_block->xrupt_block->gpe_block_list_head = + gpe_block->next; + } + + if (gpe_block->next) { + gpe_block->next->previous = gpe_block->previous; + } + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); + } + + acpi_current_gpe_count -= + gpe_block->register_count * ACPI_GPE_REGISTER_WIDTH; + + /* Free the gpe_block */ + + ACPI_FREE(gpe_block->register_info); + ACPI_FREE(gpe_block->event_info); + ACPI_FREE(gpe_block); + + unlock_and_exit: + status = acpi_ut_release_mutex(ACPI_MTX_EVENTS); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_create_gpe_info_blocks + * + * PARAMETERS: gpe_block - New GPE block + * + * RETURN: Status + * + * DESCRIPTION: Create the register_info and event_info blocks for this GPE block + * + ******************************************************************************/ + +static acpi_status +acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block) +{ + struct acpi_gpe_register_info *gpe_register_info = NULL; + struct acpi_gpe_event_info *gpe_event_info = NULL; + struct acpi_gpe_event_info *this_event; + struct acpi_gpe_register_info *this_register; + u32 i; + u32 j; + acpi_status status; + + ACPI_FUNCTION_TRACE(ev_create_gpe_info_blocks); + + /* Allocate the GPE register information block */ + + gpe_register_info = ACPI_ALLOCATE_ZEROED((acpi_size) gpe_block-> + register_count * + sizeof(struct + acpi_gpe_register_info)); + if (!gpe_register_info) { + ACPI_ERROR((AE_INFO, + "Could not allocate the GpeRegisterInfo table")); + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* + * Allocate the GPE event_info block. There are eight distinct GPEs + * per register. Initialization to zeros is sufficient. + */ + gpe_event_info = ACPI_ALLOCATE_ZEROED(((acpi_size) gpe_block-> + register_count * + ACPI_GPE_REGISTER_WIDTH) * + sizeof(struct + acpi_gpe_event_info)); + if (!gpe_event_info) { + ACPI_ERROR((AE_INFO, + "Could not allocate the GpeEventInfo table")); + status = AE_NO_MEMORY; + goto error_exit; + } + + /* Save the new Info arrays in the GPE block */ + + gpe_block->register_info = gpe_register_info; + gpe_block->event_info = gpe_event_info; + + /* + * Initialize the GPE Register and Event structures. A goal of these + * tables is to hide the fact that there are two separate GPE register + * sets in a given GPE hardware block, the status registers occupy the + * first half, and the enable registers occupy the second half. + */ + this_register = gpe_register_info; + this_event = gpe_event_info; + + for (i = 0; i < gpe_block->register_count; i++) { + + /* Init the register_info for this GPE register (8 GPEs) */ + + this_register->base_gpe_number = + (u8) (gpe_block->block_base_number + + (i * ACPI_GPE_REGISTER_WIDTH)); + + this_register->status_address.address = + gpe_block->block_address.address + i; + + this_register->enable_address.address = + gpe_block->block_address.address + i + + gpe_block->register_count; + + this_register->status_address.space_id = + gpe_block->block_address.space_id; + this_register->enable_address.space_id = + gpe_block->block_address.space_id; + this_register->status_address.bit_width = + ACPI_GPE_REGISTER_WIDTH; + this_register->enable_address.bit_width = + ACPI_GPE_REGISTER_WIDTH; + this_register->status_address.bit_offset = 0; + this_register->enable_address.bit_offset = 0; + + /* Init the event_info for each GPE within this register */ + + for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) { + this_event->gpe_number = + (u8) (this_register->base_gpe_number + j); + this_event->register_info = this_register; + this_event++; + } + + /* Disable all GPEs within this register */ + + status = acpi_write(0x00, &this_register->enable_address); + if (ACPI_FAILURE(status)) { + goto error_exit; + } + + /* Clear any pending GPE events within this register */ + + status = acpi_write(0xFF, &this_register->status_address); + if (ACPI_FAILURE(status)) { + goto error_exit; + } + + this_register++; + } + + return_ACPI_STATUS(AE_OK); + + error_exit: + if (gpe_register_info) { + ACPI_FREE(gpe_register_info); + } + if (gpe_event_info) { + ACPI_FREE(gpe_event_info); + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_create_gpe_block + * + * PARAMETERS: gpe_device - Handle to the parent GPE block + * gpe_block_address - Address and space_iD + * register_count - Number of GPE register pairs in the block + * gpe_block_base_number - Starting GPE number for the block + * interrupt_number - H/W interrupt for the block + * return_gpe_block - Where the new block descriptor is returned + * + * RETURN: Status + * + * DESCRIPTION: Create and Install a block of GPE registers. All GPEs within + * the block are disabled at exit. + * Note: Assumes namespace is locked. + * + ******************************************************************************/ + +acpi_status +acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device, + struct acpi_generic_address *gpe_block_address, + u32 register_count, + u8 gpe_block_base_number, + u32 interrupt_number, + struct acpi_gpe_block_info **return_gpe_block) +{ + acpi_status status; + struct acpi_gpe_block_info *gpe_block; + + ACPI_FUNCTION_TRACE(ev_create_gpe_block); + + if (!register_count) { + return_ACPI_STATUS(AE_OK); + } + + /* Allocate a new GPE block */ + + gpe_block = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_gpe_block_info)); + if (!gpe_block) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* Initialize the new GPE block */ + + gpe_block->node = gpe_device; + gpe_block->register_count = register_count; + gpe_block->block_base_number = gpe_block_base_number; + + ACPI_MEMCPY(&gpe_block->block_address, gpe_block_address, + sizeof(struct acpi_generic_address)); + + /* + * Create the register_info and event_info sub-structures + * Note: disables and clears all GPEs in the block + */ + status = acpi_ev_create_gpe_info_blocks(gpe_block); + if (ACPI_FAILURE(status)) { + ACPI_FREE(gpe_block); + return_ACPI_STATUS(status); + } + + /* Install the new block in the global lists */ + + status = acpi_ev_install_gpe_block(gpe_block, interrupt_number); + if (ACPI_FAILURE(status)) { + ACPI_FREE(gpe_block); + return_ACPI_STATUS(status); + } + + /* Find all GPE methods (_Lxx, _Exx) for this block */ + + status = acpi_ns_walk_namespace(ACPI_TYPE_METHOD, gpe_device, + ACPI_UINT32_MAX, ACPI_NS_WALK_NO_UNLOCK, + acpi_ev_save_method_info, gpe_block, + NULL); + + /* Return the new block */ + + if (return_gpe_block) { + (*return_gpe_block) = gpe_block; + } + + ACPI_DEBUG_PRINT((ACPI_DB_INIT, + "GPE %02X to %02X [%4.4s] %u regs on int 0x%X\n", + (u32) gpe_block->block_base_number, + (u32) (gpe_block->block_base_number + + ((gpe_block->register_count * + ACPI_GPE_REGISTER_WIDTH) - 1)), + gpe_device->name.ascii, gpe_block->register_count, + interrupt_number)); + + /* Update global count of currently available GPEs */ + + acpi_current_gpe_count += register_count * ACPI_GPE_REGISTER_WIDTH; + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_initialize_gpe_block + * + * PARAMETERS: gpe_device - Handle to the parent GPE block + * gpe_block - Gpe Block info + * + * RETURN: Status + * + * DESCRIPTION: Initialize and enable a GPE block. First find and run any + * _PRT methods associated with the block, then enable the + * appropriate GPEs. + * Note: Assumes namespace is locked. + * + ******************************************************************************/ + +acpi_status +acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device, + struct acpi_gpe_block_info *gpe_block) +{ + acpi_status status; + struct acpi_gpe_event_info *gpe_event_info; + struct acpi_gpe_walk_info gpe_info; + u32 wake_gpe_count; + u32 gpe_enabled_count; + u32 i; + u32 j; + + ACPI_FUNCTION_TRACE(ev_initialize_gpe_block); + + /* Ignore a null GPE block (e.g., if no GPE block 1 exists) */ + + if (!gpe_block) { + return_ACPI_STATUS(AE_OK); + } + + /* + * Runtime option: Should wake GPEs be enabled at runtime? The default + * is no, they should only be enabled just as the machine goes to sleep. + */ + if (acpi_gbl_leave_wake_gpes_disabled) { + /* + * Differentiate runtime vs wake GPEs, via the _PRW control methods. + * Each GPE that has one or more _PRWs that reference it is by + * definition a wake GPE and will not be enabled while the machine + * is running. + */ + gpe_info.gpe_block = gpe_block; + gpe_info.gpe_device = gpe_device; + + status = + acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, + ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK, + acpi_ev_match_prw_and_gpe, &gpe_info, + NULL); + } + + /* + * Enable all GPEs in this block that have these attributes: + * 1) are "runtime" or "run/wake" GPEs, and + * 2) have a corresponding _Lxx or _Exx method + * + * Any other GPEs within this block must be enabled via the acpi_enable_gpe() + * external interface. + */ + wake_gpe_count = 0; + gpe_enabled_count = 0; + + for (i = 0; i < gpe_block->register_count; i++) { + for (j = 0; j < 8; j++) { + + /* Get the info block for this particular GPE */ + + gpe_event_info = + &gpe_block-> + event_info[((acpi_size) i * + ACPI_GPE_REGISTER_WIDTH) + j]; + + if (((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) == + ACPI_GPE_DISPATCH_METHOD) + && (gpe_event_info->flags & ACPI_GPE_TYPE_RUNTIME)) { + gpe_enabled_count++; + } + + if (gpe_event_info->flags & ACPI_GPE_TYPE_WAKE) { + wake_gpe_count++; + } + } + } + + ACPI_DEBUG_PRINT((ACPI_DB_INIT, + "Found %u Wake, Enabled %u Runtime GPEs in this block\n", + wake_gpe_count, gpe_enabled_count)); + + /* Enable all valid runtime GPEs found above */ + + status = acpi_hw_enable_runtime_gpe_block(NULL, gpe_block, NULL); + if (ACPI_FAILURE(status)) { + ACPI_ERROR((AE_INFO, "Could not enable GPEs in GpeBlock %p", + gpe_block)); + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_gpe_initialize + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Initialize the GPE data structures + * + ******************************************************************************/ + +acpi_status acpi_ev_gpe_initialize(void) +{ + u32 register_count0 = 0; + u32 register_count1 = 0; + u32 gpe_number_max = 0; + acpi_status status; + + ACPI_FUNCTION_TRACE(ev_gpe_initialize); + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * Initialize the GPE Block(s) defined in the FADT + * + * Why the GPE register block lengths are divided by 2: From the ACPI Spec, + * section "General-Purpose Event Registers", we have: + * + * "Each register block contains two registers of equal length + * GPEx_STS and GPEx_EN (where x is 0 or 1). The length of the + * GPE0_STS and GPE0_EN registers is equal to half the GPE0_LEN + * The length of the GPE1_STS and GPE1_EN registers is equal to + * half the GPE1_LEN. If a generic register block is not supported + * then its respective block pointer and block length values in the + * FADT table contain zeros. The GPE0_LEN and GPE1_LEN do not need + * to be the same size." + */ + + /* + * Determine the maximum GPE number for this machine. + * + * Note: both GPE0 and GPE1 are optional, and either can exist without + * the other. + * + * If EITHER the register length OR the block address are zero, then that + * particular block is not supported. + */ + if (acpi_gbl_FADT.gpe0_block_length && + acpi_gbl_FADT.xgpe0_block.address) { + + /* GPE block 0 exists (has both length and address > 0) */ + + register_count0 = (u16) (acpi_gbl_FADT.gpe0_block_length / 2); + + gpe_number_max = + (register_count0 * ACPI_GPE_REGISTER_WIDTH) - 1; + + /* Install GPE Block 0 */ + + status = acpi_ev_create_gpe_block(acpi_gbl_fadt_gpe_device, + &acpi_gbl_FADT.xgpe0_block, + register_count0, 0, + acpi_gbl_FADT.sci_interrupt, + &acpi_gbl_gpe_fadt_blocks[0]); + + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Could not create GPE Block 0")); + } + } + + if (acpi_gbl_FADT.gpe1_block_length && + acpi_gbl_FADT.xgpe1_block.address) { + + /* GPE block 1 exists (has both length and address > 0) */ + + register_count1 = (u16) (acpi_gbl_FADT.gpe1_block_length / 2); + + /* Check for GPE0/GPE1 overlap (if both banks exist) */ + + if ((register_count0) && + (gpe_number_max >= acpi_gbl_FADT.gpe1_base)) { + ACPI_ERROR((AE_INFO, + "GPE0 block (GPE 0 to %d) overlaps the GPE1 block (GPE %d to %d) - Ignoring GPE1", + gpe_number_max, acpi_gbl_FADT.gpe1_base, + acpi_gbl_FADT.gpe1_base + + ((register_count1 * + ACPI_GPE_REGISTER_WIDTH) - 1))); + + /* Ignore GPE1 block by setting the register count to zero */ + + register_count1 = 0; + } else { + /* Install GPE Block 1 */ + + status = + acpi_ev_create_gpe_block(acpi_gbl_fadt_gpe_device, + &acpi_gbl_FADT.xgpe1_block, + register_count1, + acpi_gbl_FADT.gpe1_base, + acpi_gbl_FADT. + sci_interrupt, + &acpi_gbl_gpe_fadt_blocks + [1]); + + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Could not create GPE Block 1")); + } + + /* + * GPE0 and GPE1 do not have to be contiguous in the GPE number + * space. However, GPE0 always starts at GPE number zero. + */ + gpe_number_max = acpi_gbl_FADT.gpe1_base + + ((register_count1 * ACPI_GPE_REGISTER_WIDTH) - 1); + } + } + + /* Exit if there are no GPE registers */ + + if ((register_count0 + register_count1) == 0) { + + /* GPEs are not required by ACPI, this is OK */ + + ACPI_DEBUG_PRINT((ACPI_DB_INIT, + "There are no GPE blocks defined in the FADT\n")); + status = AE_OK; + goto cleanup; + } + + /* Check for Max GPE number out-of-range */ + + if (gpe_number_max > ACPI_GPE_MAX) { + ACPI_ERROR((AE_INFO, + "Maximum GPE number from FADT is too large: 0x%X", + gpe_number_max)); + status = AE_BAD_VALUE; + goto cleanup; + } + + cleanup: + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + return_ACPI_STATUS(AE_OK); +} diff --git a/drivers/acpi/acpica/evmisc.c b/drivers/acpi/acpica/evmisc.c new file mode 100644 index 000000000000..16f2c1a00167 --- /dev/null +++ b/drivers/acpi/acpica/evmisc.c @@ -0,0 +1,621 @@ +/****************************************************************************** + * + * Module Name: evmisc - Miscellaneous event manager support functions + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_EVENTS +ACPI_MODULE_NAME("evmisc") + +/* Local prototypes */ +static void ACPI_SYSTEM_XFACE acpi_ev_notify_dispatch(void *context); + +static u32 acpi_ev_global_lock_handler(void *context); + +static acpi_status acpi_ev_remove_global_lock_handler(void); + +/******************************************************************************* + * + * FUNCTION: acpi_ev_is_notify_object + * + * PARAMETERS: Node - Node to check + * + * RETURN: TRUE if notifies allowed on this object + * + * DESCRIPTION: Check type of node for a object that supports notifies. + * + * TBD: This could be replaced by a flag bit in the node. + * + ******************************************************************************/ + +u8 acpi_ev_is_notify_object(struct acpi_namespace_node *node) +{ + switch (node->type) { + case ACPI_TYPE_DEVICE: + case ACPI_TYPE_PROCESSOR: + case ACPI_TYPE_THERMAL: + /* + * These are the ONLY objects that can receive ACPI notifications + */ + return (TRUE); + + default: + return (FALSE); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_queue_notify_request + * + * PARAMETERS: Node - NS node for the notified object + * notify_value - Value from the Notify() request + * + * RETURN: Status + * + * DESCRIPTION: Dispatch a device notification event to a previously + * installed handler. + * + ******************************************************************************/ + +acpi_status +acpi_ev_queue_notify_request(struct acpi_namespace_node * node, + u32 notify_value) +{ + union acpi_operand_object *obj_desc; + union acpi_operand_object *handler_obj = NULL; + union acpi_generic_state *notify_info; + acpi_status status = AE_OK; + + ACPI_FUNCTION_NAME(ev_queue_notify_request); + + /* + * For value 3 (Ejection Request), some device method may need to be run. + * For value 2 (Device Wake) if _PRW exists, the _PS0 method may need + * to be run. + * For value 0x80 (Status Change) on the power button or sleep button, + * initiate soft-off or sleep operation? + */ + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Dispatching Notify on [%4.4s] Node %p Value 0x%2.2X (%s)\n", + acpi_ut_get_node_name(node), node, notify_value, + acpi_ut_get_notify_name(notify_value))); + + /* Get the notify object attached to the NS Node */ + + obj_desc = acpi_ns_get_attached_object(node); + if (obj_desc) { + + /* We have the notify object, Get the right handler */ + + switch (node->type) { + + /* Notify allowed only on these types */ + + case ACPI_TYPE_DEVICE: + case ACPI_TYPE_THERMAL: + case ACPI_TYPE_PROCESSOR: + + if (notify_value <= ACPI_MAX_SYS_NOTIFY) { + handler_obj = + obj_desc->common_notify.system_notify; + } else { + handler_obj = + obj_desc->common_notify.device_notify; + } + break; + + default: + + /* All other types are not supported */ + + return (AE_TYPE); + } + } + + /* + * If there is any handler to run, schedule the dispatcher. + * Check for: + * 1) Global system notify handler + * 2) Global device notify handler + * 3) Per-device notify handler + */ + if ((acpi_gbl_system_notify.handler + && (notify_value <= ACPI_MAX_SYS_NOTIFY)) + || (acpi_gbl_device_notify.handler + && (notify_value > ACPI_MAX_SYS_NOTIFY)) || handler_obj) { + notify_info = acpi_ut_create_generic_state(); + if (!notify_info) { + return (AE_NO_MEMORY); + } + + if (!handler_obj) { + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Executing system notify handler for Notify (%4.4s, %X) node %p\n", + acpi_ut_get_node_name(node), + notify_value, node)); + } + + notify_info->common.descriptor_type = + ACPI_DESC_TYPE_STATE_NOTIFY; + notify_info->notify.node = node; + notify_info->notify.value = (u16) notify_value; + notify_info->notify.handler_obj = handler_obj; + + status = + acpi_os_execute(OSL_NOTIFY_HANDLER, acpi_ev_notify_dispatch, + notify_info); + if (ACPI_FAILURE(status)) { + acpi_ut_delete_generic_state(notify_info); + } + } else { + /* There is no notify handler (per-device or system) for this device */ + + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "No notify handler for Notify (%4.4s, %X) node %p\n", + acpi_ut_get_node_name(node), notify_value, + node)); + } + + return (status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_notify_dispatch + * + * PARAMETERS: Context - To be passed to the notify handler + * + * RETURN: None. + * + * DESCRIPTION: Dispatch a device notification event to a previously + * installed handler. + * + ******************************************************************************/ + +static void ACPI_SYSTEM_XFACE acpi_ev_notify_dispatch(void *context) +{ + union acpi_generic_state *notify_info = + (union acpi_generic_state *)context; + acpi_notify_handler global_handler = NULL; + void *global_context = NULL; + union acpi_operand_object *handler_obj; + + ACPI_FUNCTION_ENTRY(); + + /* + * We will invoke a global notify handler if installed. This is done + * _before_ we invoke the per-device handler attached to the device. + */ + if (notify_info->notify.value <= ACPI_MAX_SYS_NOTIFY) { + + /* Global system notification handler */ + + if (acpi_gbl_system_notify.handler) { + global_handler = acpi_gbl_system_notify.handler; + global_context = acpi_gbl_system_notify.context; + } + } else { + /* Global driver notification handler */ + + if (acpi_gbl_device_notify.handler) { + global_handler = acpi_gbl_device_notify.handler; + global_context = acpi_gbl_device_notify.context; + } + } + + /* Invoke the system handler first, if present */ + + if (global_handler) { + global_handler(notify_info->notify.node, + notify_info->notify.value, global_context); + } + + /* Now invoke the per-device handler, if present */ + + handler_obj = notify_info->notify.handler_obj; + if (handler_obj) { + handler_obj->notify.handler(notify_info->notify.node, + notify_info->notify.value, + handler_obj->notify.context); + } + + /* All done with the info object */ + + acpi_ut_delete_generic_state(notify_info); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_global_lock_handler + * + * PARAMETERS: Context - From thread interface, not used + * + * RETURN: ACPI_INTERRUPT_HANDLED + * + * DESCRIPTION: Invoked directly from the SCI handler when a global lock + * release interrupt occurs. Attempt to acquire the global lock, + * if successful, signal the thread waiting for the lock. + * + * NOTE: Assumes that the semaphore can be signaled from interrupt level. If + * this is not possible for some reason, a separate thread will have to be + * scheduled to do this. + * + ******************************************************************************/ + +static u32 acpi_ev_global_lock_handler(void *context) +{ + u8 acquired = FALSE; + + /* + * Attempt to get the lock. + * + * If we don't get it now, it will be marked pending and we will + * take another interrupt when it becomes free. + */ + ACPI_ACQUIRE_GLOBAL_LOCK(acpi_gbl_FACS, acquired); + if (acquired) { + + /* Got the lock, now wake all threads waiting for it */ + + acpi_gbl_global_lock_acquired = TRUE; + /* Send a unit to the semaphore */ + + if (ACPI_FAILURE + (acpi_os_signal_semaphore + (acpi_gbl_global_lock_semaphore, 1))) { + ACPI_ERROR((AE_INFO, + "Could not signal Global Lock semaphore")); + } + } + + return (ACPI_INTERRUPT_HANDLED); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_init_global_lock_handler + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Install a handler for the global lock release event + * + ******************************************************************************/ + +acpi_status acpi_ev_init_global_lock_handler(void) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(ev_init_global_lock_handler); + + /* Attempt installation of the global lock handler */ + + status = acpi_install_fixed_event_handler(ACPI_EVENT_GLOBAL, + acpi_ev_global_lock_handler, + NULL); + + /* + * If the global lock does not exist on this platform, the attempt to + * enable GBL_STATUS will fail (the GBL_ENABLE bit will not stick). + * Map to AE_OK, but mark global lock as not present. Any attempt to + * actually use the global lock will be flagged with an error. + */ + if (status == AE_NO_HARDWARE_RESPONSE) { + ACPI_ERROR((AE_INFO, + "No response from Global Lock hardware, disabling lock")); + + acpi_gbl_global_lock_present = FALSE; + return_ACPI_STATUS(AE_OK); + } + + acpi_gbl_global_lock_present = TRUE; + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_remove_global_lock_handler + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Remove the handler for the Global Lock + * + ******************************************************************************/ + +static acpi_status acpi_ev_remove_global_lock_handler(void) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(ev_remove_global_lock_handler); + + acpi_gbl_global_lock_present = FALSE; + status = acpi_remove_fixed_event_handler(ACPI_EVENT_GLOBAL, + acpi_ev_global_lock_handler); + + return_ACPI_STATUS(status); +} + +/****************************************************************************** + * + * FUNCTION: acpi_ev_acquire_global_lock + * + * PARAMETERS: Timeout - Max time to wait for the lock, in millisec. + * + * RETURN: Status + * + * DESCRIPTION: Attempt to gain ownership of the Global Lock. + * + * MUTEX: Interpreter must be locked + * + * Note: The original implementation allowed multiple threads to "acquire" the + * Global Lock, and the OS would hold the lock until the last thread had + * released it. However, this could potentially starve the BIOS out of the + * lock, especially in the case where there is a tight handshake between the + * Embedded Controller driver and the BIOS. Therefore, this implementation + * allows only one thread to acquire the HW Global Lock at a time, and makes + * the global lock appear as a standard mutex on the OS side. + * + *****************************************************************************/ +static acpi_thread_id acpi_ev_global_lock_thread_id; +static int acpi_ev_global_lock_acquired; + +acpi_status acpi_ev_acquire_global_lock(u16 timeout) +{ + acpi_status status = AE_OK; + u8 acquired = FALSE; + + ACPI_FUNCTION_TRACE(ev_acquire_global_lock); + + /* + * Only one thread can acquire the GL at a time, the global_lock_mutex + * enforces this. This interface releases the interpreter if we must wait. + */ + status = acpi_ex_system_wait_mutex( + acpi_gbl_global_lock_mutex->mutex.os_mutex, 0); + if (status == AE_TIME) { + if (acpi_ev_global_lock_thread_id == acpi_os_get_thread_id()) { + acpi_ev_global_lock_acquired++; + return AE_OK; + } + } + + if (ACPI_FAILURE(status)) { + status = acpi_ex_system_wait_mutex( + acpi_gbl_global_lock_mutex->mutex.os_mutex, + timeout); + } + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + acpi_ev_global_lock_thread_id = acpi_os_get_thread_id(); + acpi_ev_global_lock_acquired++; + + /* + * Update the global lock handle and check for wraparound. The handle is + * only used for the external global lock interfaces, but it is updated + * here to properly handle the case where a single thread may acquire the + * lock via both the AML and the acpi_acquire_global_lock interfaces. The + * handle is therefore updated on the first acquire from a given thread + * regardless of where the acquisition request originated. + */ + acpi_gbl_global_lock_handle++; + if (acpi_gbl_global_lock_handle == 0) { + acpi_gbl_global_lock_handle = 1; + } + + /* + * Make sure that a global lock actually exists. If not, just treat the + * lock as a standard mutex. + */ + if (!acpi_gbl_global_lock_present) { + acpi_gbl_global_lock_acquired = TRUE; + return_ACPI_STATUS(AE_OK); + } + + /* Attempt to acquire the actual hardware lock */ + + ACPI_ACQUIRE_GLOBAL_LOCK(acpi_gbl_FACS, acquired); + if (acquired) { + + /* We got the lock */ + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Acquired hardware Global Lock\n")); + + acpi_gbl_global_lock_acquired = TRUE; + return_ACPI_STATUS(AE_OK); + } + + /* + * Did not get the lock. The pending bit was set above, and we must now + * wait until we get the global lock released interrupt. + */ + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Waiting for hardware Global Lock\n")); + + /* + * Wait for handshake with the global lock interrupt handler. + * This interface releases the interpreter if we must wait. + */ + status = acpi_ex_system_wait_semaphore(acpi_gbl_global_lock_semaphore, + ACPI_WAIT_FOREVER); + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_release_global_lock + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Releases ownership of the Global Lock. + * + ******************************************************************************/ + +acpi_status acpi_ev_release_global_lock(void) +{ + u8 pending = FALSE; + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE(ev_release_global_lock); + + /* Lock must be already acquired */ + + if (!acpi_gbl_global_lock_acquired) { + ACPI_WARNING((AE_INFO, + "Cannot release the ACPI Global Lock, it has not been acquired")); + return_ACPI_STATUS(AE_NOT_ACQUIRED); + } + + acpi_ev_global_lock_acquired--; + if (acpi_ev_global_lock_acquired > 0) { + return AE_OK; + } + + if (acpi_gbl_global_lock_present) { + + /* Allow any thread to release the lock */ + + ACPI_RELEASE_GLOBAL_LOCK(acpi_gbl_FACS, pending); + + /* + * If the pending bit was set, we must write GBL_RLS to the control + * register + */ + if (pending) { + status = + acpi_set_register(ACPI_BITREG_GLOBAL_LOCK_RELEASE, + 1); + } + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Released hardware Global Lock\n")); + } + + acpi_gbl_global_lock_acquired = FALSE; + + /* Release the local GL mutex */ + acpi_ev_global_lock_thread_id = NULL; + acpi_ev_global_lock_acquired = 0; + acpi_os_release_mutex(acpi_gbl_global_lock_mutex->mutex.os_mutex); + return_ACPI_STATUS(status); +} + +/****************************************************************************** + * + * FUNCTION: acpi_ev_terminate + * + * PARAMETERS: none + * + * RETURN: none + * + * DESCRIPTION: Disable events and free memory allocated for table storage. + * + ******************************************************************************/ + +void acpi_ev_terminate(void) +{ + u32 i; + acpi_status status; + + ACPI_FUNCTION_TRACE(ev_terminate); + + if (acpi_gbl_events_initialized) { + /* + * Disable all event-related functionality. In all cases, on error, + * print a message but obviously we don't abort. + */ + + /* Disable all fixed events */ + + for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) { + status = acpi_disable_event(i, 0); + if (ACPI_FAILURE(status)) { + ACPI_ERROR((AE_INFO, + "Could not disable fixed event %d", + (u32) i)); + } + } + + /* Disable all GPEs in all GPE blocks */ + + status = acpi_ev_walk_gpe_list(acpi_hw_disable_gpe_block, NULL); + + /* Remove SCI handler */ + + status = acpi_ev_remove_sci_handler(); + if (ACPI_FAILURE(status)) { + ACPI_ERROR((AE_INFO, "Could not remove SCI handler")); + } + + status = acpi_ev_remove_global_lock_handler(); + if (ACPI_FAILURE(status)) { + ACPI_ERROR((AE_INFO, + "Could not remove Global Lock handler")); + } + } + + /* Deallocate all handler objects installed within GPE info structs */ + + status = acpi_ev_walk_gpe_list(acpi_ev_delete_gpe_handlers, NULL); + + /* Return to original mode if necessary */ + + if (acpi_gbl_original_mode == ACPI_SYS_MODE_LEGACY) { + status = acpi_disable(); + if (ACPI_FAILURE(status)) { + ACPI_WARNING((AE_INFO, "AcpiDisable failed")); + } + } + return_VOID; +} diff --git a/drivers/acpi/acpica/evregion.c b/drivers/acpi/acpica/evregion.c new file mode 100644 index 000000000000..7346093f43ed --- /dev/null +++ b/drivers/acpi/acpica/evregion.c @@ -0,0 +1,1070 @@ +/****************************************************************************** + * + * Module Name: evregion - ACPI address_space (op_region) handler dispatch + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_EVENTS +ACPI_MODULE_NAME("evregion") + +/* Local prototypes */ +static acpi_status +acpi_ev_reg_run(acpi_handle obj_handle, + u32 level, void *context, void **return_value); + +static acpi_status +acpi_ev_install_handler(acpi_handle obj_handle, + u32 level, void *context, void **return_value); + +/* These are the address spaces that will get default handlers */ + +#define ACPI_NUM_DEFAULT_SPACES 4 + +static u8 acpi_gbl_default_address_spaces[ACPI_NUM_DEFAULT_SPACES] = { + ACPI_ADR_SPACE_SYSTEM_MEMORY, + ACPI_ADR_SPACE_SYSTEM_IO, + ACPI_ADR_SPACE_PCI_CONFIG, + ACPI_ADR_SPACE_DATA_TABLE +}; + +/******************************************************************************* + * + * FUNCTION: acpi_ev_install_region_handlers + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Installs the core subsystem default address space handlers. + * + ******************************************************************************/ + +acpi_status acpi_ev_install_region_handlers(void) +{ + acpi_status status; + u32 i; + + ACPI_FUNCTION_TRACE(ev_install_region_handlers); + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * All address spaces (PCI Config, EC, SMBus) are scope dependent and + * registration must occur for a specific device. + * + * In the case of the system memory and IO address spaces there is + * currently no device associated with the address space. For these we + * use the root. + * + * We install the default PCI config space handler at the root so that + * this space is immediately available even though the we have not + * enumerated all the PCI Root Buses yet. This is to conform to the ACPI + * specification which states that the PCI config space must be always + * available -- even though we are nowhere near ready to find the PCI root + * buses at this point. + * + * NOTE: We ignore AE_ALREADY_EXISTS because this means that a handler + * has already been installed (via acpi_install_address_space_handler). + * Similar for AE_SAME_HANDLER. + */ + for (i = 0; i < ACPI_NUM_DEFAULT_SPACES; i++) { + status = acpi_ev_install_space_handler(acpi_gbl_root_node, + acpi_gbl_default_address_spaces + [i], + ACPI_DEFAULT_HANDLER, + NULL, NULL); + switch (status) { + case AE_OK: + case AE_SAME_HANDLER: + case AE_ALREADY_EXISTS: + + /* These exceptions are all OK */ + + status = AE_OK; + break; + + default: + + goto unlock_and_exit; + } + } + + unlock_and_exit: + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_initialize_op_regions + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Execute _REG methods for all Operation Regions that have + * an installed default region handler. + * + ******************************************************************************/ + +acpi_status acpi_ev_initialize_op_regions(void) +{ + acpi_status status; + u32 i; + + ACPI_FUNCTION_TRACE(ev_initialize_op_regions); + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Run the _REG methods for op_regions in each default address space */ + + for (i = 0; i < ACPI_NUM_DEFAULT_SPACES; i++) { + /* + * TBD: Make sure handler is the DEFAULT handler, otherwise + * _REG will have already been run. + */ + status = acpi_ev_execute_reg_methods(acpi_gbl_root_node, + acpi_gbl_default_address_spaces + [i]); + } + + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_execute_reg_method + * + * PARAMETERS: region_obj - Region object + * Function - Passed to _REG: On (1) or Off (0) + * + * RETURN: Status + * + * DESCRIPTION: Execute _REG method for a region + * + ******************************************************************************/ + +acpi_status +acpi_ev_execute_reg_method(union acpi_operand_object *region_obj, u32 function) +{ + struct acpi_evaluate_info *info; + union acpi_operand_object *args[3]; + union acpi_operand_object *region_obj2; + acpi_status status; + + ACPI_FUNCTION_TRACE(ev_execute_reg_method); + + region_obj2 = acpi_ns_get_secondary_object(region_obj); + if (!region_obj2) { + return_ACPI_STATUS(AE_NOT_EXIST); + } + + if (region_obj2->extra.method_REG == NULL) { + return_ACPI_STATUS(AE_OK); + } + + /* Allocate and initialize the evaluation information block */ + + info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info)); + if (!info) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + info->prefix_node = region_obj2->extra.method_REG; + info->pathname = NULL; + info->parameters = args; + info->flags = ACPI_IGNORE_RETURN_VALUE; + + /* + * The _REG method has two arguments: + * + * Arg0 - Integer: + * Operation region space ID Same value as region_obj->Region.space_id + * + * Arg1 - Integer: + * connection status 1 for connecting the handler, 0 for disconnecting + * the handler (Passed as a parameter) + */ + args[0] = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + if (!args[0]) { + status = AE_NO_MEMORY; + goto cleanup1; + } + + args[1] = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + if (!args[1]) { + status = AE_NO_MEMORY; + goto cleanup2; + } + + /* Setup the parameter objects */ + + args[0]->integer.value = region_obj->region.space_id; + args[1]->integer.value = function; + args[2] = NULL; + + /* Execute the method, no return value */ + + ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname + (ACPI_TYPE_METHOD, info->prefix_node, NULL)); + + status = acpi_ns_evaluate(info); + acpi_ut_remove_reference(args[1]); + + cleanup2: + acpi_ut_remove_reference(args[0]); + + cleanup1: + ACPI_FREE(info); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_address_space_dispatch + * + * PARAMETERS: region_obj - Internal region object + * Function - Read or Write operation + * Address - Where in the space to read or write + * bit_width - Field width in bits (8, 16, 32, or 64) + * Value - Pointer to in or out value, must be + * full 64-bit acpi_integer + * + * RETURN: Status + * + * DESCRIPTION: Dispatch an address space or operation region access to + * a previously installed handler. + * + ******************************************************************************/ + +acpi_status +acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj, + u32 function, + acpi_physical_address address, + u32 bit_width, acpi_integer * value) +{ + acpi_status status; + acpi_adr_space_handler handler; + acpi_adr_space_setup region_setup; + union acpi_operand_object *handler_desc; + union acpi_operand_object *region_obj2; + void *region_context = NULL; + + ACPI_FUNCTION_TRACE(ev_address_space_dispatch); + + region_obj2 = acpi_ns_get_secondary_object(region_obj); + if (!region_obj2) { + return_ACPI_STATUS(AE_NOT_EXIST); + } + + /* Ensure that there is a handler associated with this region */ + + handler_desc = region_obj->region.handler; + if (!handler_desc) { + ACPI_ERROR((AE_INFO, + "No handler for Region [%4.4s] (%p) [%s]", + acpi_ut_get_node_name(region_obj->region.node), + region_obj, + acpi_ut_get_region_name(region_obj->region. + space_id))); + + return_ACPI_STATUS(AE_NOT_EXIST); + } + + /* + * It may be the case that the region has never been initialized. + * Some types of regions require special init code + */ + if (!(region_obj->region.flags & AOPOBJ_SETUP_COMPLETE)) { + + /* This region has not been initialized yet, do it */ + + region_setup = handler_desc->address_space.setup; + if (!region_setup) { + + /* No initialization routine, exit with error */ + + ACPI_ERROR((AE_INFO, + "No init routine for region(%p) [%s]", + region_obj, + acpi_ut_get_region_name(region_obj->region. + space_id))); + return_ACPI_STATUS(AE_NOT_EXIST); + } + + /* + * We must exit the interpreter because the region setup will + * potentially execute control methods (for example, the _REG method + * for this region) + */ + acpi_ex_exit_interpreter(); + + status = region_setup(region_obj, ACPI_REGION_ACTIVATE, + handler_desc->address_space.context, + ®ion_context); + + /* Re-enter the interpreter */ + + acpi_ex_enter_interpreter(); + + /* Check for failure of the Region Setup */ + + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "During region initialization: [%s]", + acpi_ut_get_region_name(region_obj-> + region. + space_id))); + return_ACPI_STATUS(status); + } + + /* Region initialization may have been completed by region_setup */ + + if (!(region_obj->region.flags & AOPOBJ_SETUP_COMPLETE)) { + region_obj->region.flags |= AOPOBJ_SETUP_COMPLETE; + + if (region_obj2->extra.region_context) { + + /* The handler for this region was already installed */ + + ACPI_FREE(region_context); + } else { + /* + * Save the returned context for use in all accesses to + * this particular region + */ + region_obj2->extra.region_context = + region_context; + } + } + } + + /* We have everything we need, we can invoke the address space handler */ + + handler = handler_desc->address_space.handler; + + ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, + "Handler %p (@%p) Address %8.8X%8.8X [%s]\n", + ®ion_obj->region.handler->address_space, handler, + ACPI_FORMAT_NATIVE_UINT(address), + acpi_ut_get_region_name(region_obj->region. + space_id))); + + if (!(handler_desc->address_space.handler_flags & + ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)) { + /* + * For handlers other than the default (supplied) handlers, we must + * exit the interpreter because the handler *might* block -- we don't + * know what it will do, so we can't hold the lock on the intepreter. + */ + acpi_ex_exit_interpreter(); + } + + /* Call the handler */ + + status = handler(function, address, bit_width, value, + handler_desc->address_space.context, + region_obj2->extra.region_context); + + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, "Returned by Handler for [%s]", + acpi_ut_get_region_name(region_obj->region. + space_id))); + } + + if (!(handler_desc->address_space.handler_flags & + ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)) { + /* + * We just returned from a non-default handler, we must re-enter the + * interpreter + */ + acpi_ex_enter_interpreter(); + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_detach_region + * + * PARAMETERS: region_obj - Region Object + * acpi_ns_is_locked - Namespace Region Already Locked? + * + * RETURN: None + * + * DESCRIPTION: Break the association between the handler and the region + * this is a two way association. + * + ******************************************************************************/ + +void +acpi_ev_detach_region(union acpi_operand_object *region_obj, + u8 acpi_ns_is_locked) +{ + union acpi_operand_object *handler_obj; + union acpi_operand_object *obj_desc; + union acpi_operand_object **last_obj_ptr; + acpi_adr_space_setup region_setup; + void **region_context; + union acpi_operand_object *region_obj2; + acpi_status status; + + ACPI_FUNCTION_TRACE(ev_detach_region); + + region_obj2 = acpi_ns_get_secondary_object(region_obj); + if (!region_obj2) { + return_VOID; + } + region_context = ®ion_obj2->extra.region_context; + + /* Get the address handler from the region object */ + + handler_obj = region_obj->region.handler; + if (!handler_obj) { + + /* This region has no handler, all done */ + + return_VOID; + } + + /* Find this region in the handler's list */ + + obj_desc = handler_obj->address_space.region_list; + last_obj_ptr = &handler_obj->address_space.region_list; + + while (obj_desc) { + + /* Is this the correct Region? */ + + if (obj_desc == region_obj) { + ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, + "Removing Region %p from address handler %p\n", + region_obj, handler_obj)); + + /* This is it, remove it from the handler's list */ + + *last_obj_ptr = obj_desc->region.next; + obj_desc->region.next = NULL; /* Must clear field */ + + if (acpi_ns_is_locked) { + status = + acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return_VOID; + } + } + + /* Now stop region accesses by executing the _REG method */ + + status = acpi_ev_execute_reg_method(region_obj, 0); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "from region _REG, [%s]", + acpi_ut_get_region_name + (region_obj->region.space_id))); + } + + if (acpi_ns_is_locked) { + status = + acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return_VOID; + } + } + + /* + * If the region has been activated, call the setup handler with + * the deactivate notification + */ + if (region_obj->region.flags & AOPOBJ_SETUP_COMPLETE) { + region_setup = handler_obj->address_space.setup; + status = + region_setup(region_obj, + ACPI_REGION_DEACTIVATE, + handler_obj->address_space. + context, region_context); + + /* Init routine may fail, Just ignore errors */ + + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "from region handler - deactivate, [%s]", + acpi_ut_get_region_name + (region_obj->region. + space_id))); + } + + region_obj->region.flags &= + ~(AOPOBJ_SETUP_COMPLETE); + } + + /* + * Remove handler reference in the region + * + * NOTE: this doesn't mean that the region goes away, the region + * is just inaccessible as indicated to the _REG method + * + * If the region is on the handler's list, this must be the + * region's handler + */ + region_obj->region.handler = NULL; + acpi_ut_remove_reference(handler_obj); + + return_VOID; + } + + /* Walk the linked list of handlers */ + + last_obj_ptr = &obj_desc->region.next; + obj_desc = obj_desc->region.next; + } + + /* If we get here, the region was not in the handler's region list */ + + ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, + "Cannot remove region %p from address handler %p\n", + region_obj, handler_obj)); + + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_attach_region + * + * PARAMETERS: handler_obj - Handler Object + * region_obj - Region Object + * acpi_ns_is_locked - Namespace Region Already Locked? + * + * RETURN: None + * + * DESCRIPTION: Create the association between the handler and the region + * this is a two way association. + * + ******************************************************************************/ + +acpi_status +acpi_ev_attach_region(union acpi_operand_object *handler_obj, + union acpi_operand_object *region_obj, + u8 acpi_ns_is_locked) +{ + + ACPI_FUNCTION_TRACE(ev_attach_region); + + ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, + "Adding Region [%4.4s] %p to address handler %p [%s]\n", + acpi_ut_get_node_name(region_obj->region.node), + region_obj, handler_obj, + acpi_ut_get_region_name(region_obj->region. + space_id))); + + /* Link this region to the front of the handler's list */ + + region_obj->region.next = handler_obj->address_space.region_list; + handler_obj->address_space.region_list = region_obj; + + /* Install the region's handler */ + + if (region_obj->region.handler) { + return_ACPI_STATUS(AE_ALREADY_EXISTS); + } + + region_obj->region.handler = handler_obj; + acpi_ut_add_reference(handler_obj); + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_install_handler + * + * PARAMETERS: walk_namespace callback + * + * DESCRIPTION: This routine installs an address handler into objects that are + * of type Region or Device. + * + * If the Object is a Device, and the device has a handler of + * the same type then the search is terminated in that branch. + * + * This is because the existing handler is closer in proximity + * to any more regions than the one we are trying to install. + * + ******************************************************************************/ + +static acpi_status +acpi_ev_install_handler(acpi_handle obj_handle, + u32 level, void *context, void **return_value) +{ + union acpi_operand_object *handler_obj; + union acpi_operand_object *next_handler_obj; + union acpi_operand_object *obj_desc; + struct acpi_namespace_node *node; + acpi_status status; + + ACPI_FUNCTION_NAME(ev_install_handler); + + handler_obj = (union acpi_operand_object *)context; + + /* Parameter validation */ + + if (!handler_obj) { + return (AE_OK); + } + + /* Convert and validate the device handle */ + + node = acpi_ns_map_handle_to_node(obj_handle); + if (!node) { + return (AE_BAD_PARAMETER); + } + + /* + * We only care about regions and objects that are allowed to have + * address space handlers + */ + if ((node->type != ACPI_TYPE_DEVICE) && + (node->type != ACPI_TYPE_REGION) && (node != acpi_gbl_root_node)) { + return (AE_OK); + } + + /* Check for an existing internal object */ + + obj_desc = acpi_ns_get_attached_object(node); + if (!obj_desc) { + + /* No object, just exit */ + + return (AE_OK); + } + + /* Devices are handled different than regions */ + + if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_DEVICE) { + + /* Check if this Device already has a handler for this address space */ + + next_handler_obj = obj_desc->device.handler; + while (next_handler_obj) { + + /* Found a handler, is it for the same address space? */ + + if (next_handler_obj->address_space.space_id == + handler_obj->address_space.space_id) { + ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, + "Found handler for region [%s] in device %p(%p) handler %p\n", + acpi_ut_get_region_name + (handler_obj->address_space. + space_id), obj_desc, + next_handler_obj, + handler_obj)); + + /* + * Since the object we found it on was a device, then it + * means that someone has already installed a handler for + * the branch of the namespace from this device on. Just + * bail out telling the walk routine to not traverse this + * branch. This preserves the scoping rule for handlers. + */ + return (AE_CTRL_DEPTH); + } + + /* Walk the linked list of handlers attached to this device */ + + next_handler_obj = next_handler_obj->address_space.next; + } + + /* + * As long as the device didn't have a handler for this space we + * don't care about it. We just ignore it and proceed. + */ + return (AE_OK); + } + + /* Object is a Region */ + + if (obj_desc->region.space_id != handler_obj->address_space.space_id) { + + /* This region is for a different address space, just ignore it */ + + return (AE_OK); + } + + /* + * Now we have a region and it is for the handler's address space type. + * + * First disconnect region for any previous handler (if any) + */ + acpi_ev_detach_region(obj_desc, FALSE); + + /* Connect the region to the new handler */ + + status = acpi_ev_attach_region(handler_obj, obj_desc, FALSE); + return (status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_install_space_handler + * + * PARAMETERS: Node - Namespace node for the device + * space_id - The address space ID + * Handler - Address of the handler + * Setup - Address of the setup function + * Context - Value passed to the handler on each access + * + * RETURN: Status + * + * DESCRIPTION: Install a handler for all op_regions of a given space_id. + * Assumes namespace is locked + * + ******************************************************************************/ + +acpi_status +acpi_ev_install_space_handler(struct acpi_namespace_node * node, + acpi_adr_space_type space_id, + acpi_adr_space_handler handler, + acpi_adr_space_setup setup, void *context) +{ + union acpi_operand_object *obj_desc; + union acpi_operand_object *handler_obj; + acpi_status status; + acpi_object_type type; + u8 flags = 0; + + ACPI_FUNCTION_TRACE(ev_install_space_handler); + + /* + * This registration is valid for only the types below and the root. This + * is where the default handlers get placed. + */ + if ((node->type != ACPI_TYPE_DEVICE) && + (node->type != ACPI_TYPE_PROCESSOR) && + (node->type != ACPI_TYPE_THERMAL) && (node != acpi_gbl_root_node)) { + status = AE_BAD_PARAMETER; + goto unlock_and_exit; + } + + if (handler == ACPI_DEFAULT_HANDLER) { + flags = ACPI_ADDR_HANDLER_DEFAULT_INSTALLED; + + switch (space_id) { + case ACPI_ADR_SPACE_SYSTEM_MEMORY: + handler = acpi_ex_system_memory_space_handler; + setup = acpi_ev_system_memory_region_setup; + break; + + case ACPI_ADR_SPACE_SYSTEM_IO: + handler = acpi_ex_system_io_space_handler; + setup = acpi_ev_io_space_region_setup; + break; + + case ACPI_ADR_SPACE_PCI_CONFIG: + handler = acpi_ex_pci_config_space_handler; + setup = acpi_ev_pci_config_region_setup; + break; + + case ACPI_ADR_SPACE_CMOS: + handler = acpi_ex_cmos_space_handler; + setup = acpi_ev_cmos_region_setup; + break; + + case ACPI_ADR_SPACE_PCI_BAR_TARGET: + handler = acpi_ex_pci_bar_space_handler; + setup = acpi_ev_pci_bar_region_setup; + break; + + case ACPI_ADR_SPACE_DATA_TABLE: + handler = acpi_ex_data_table_space_handler; + setup = NULL; + break; + + default: + status = AE_BAD_PARAMETER; + goto unlock_and_exit; + } + } + + /* If the caller hasn't specified a setup routine, use the default */ + + if (!setup) { + setup = acpi_ev_default_region_setup; + } + + /* Check for an existing internal object */ + + obj_desc = acpi_ns_get_attached_object(node); + if (obj_desc) { + /* + * The attached device object already exists. Make sure the handler + * is not already installed. + */ + handler_obj = obj_desc->device.handler; + + /* Walk the handler list for this device */ + + while (handler_obj) { + + /* Same space_id indicates a handler already installed */ + + if (handler_obj->address_space.space_id == space_id) { + if (handler_obj->address_space.handler == + handler) { + /* + * It is (relatively) OK to attempt to install the SAME + * handler twice. This can easily happen with the + * PCI_Config space. + */ + status = AE_SAME_HANDLER; + goto unlock_and_exit; + } else { + /* A handler is already installed */ + + status = AE_ALREADY_EXISTS; + } + goto unlock_and_exit; + } + + /* Walk the linked list of handlers */ + + handler_obj = handler_obj->address_space.next; + } + } else { + ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, + "Creating object on Device %p while installing handler\n", + node)); + + /* obj_desc does not exist, create one */ + + if (node->type == ACPI_TYPE_ANY) { + type = ACPI_TYPE_DEVICE; + } else { + type = node->type; + } + + obj_desc = acpi_ut_create_internal_object(type); + if (!obj_desc) { + status = AE_NO_MEMORY; + goto unlock_and_exit; + } + + /* Init new descriptor */ + + obj_desc->common.type = (u8) type; + + /* Attach the new object to the Node */ + + status = acpi_ns_attach_object(node, obj_desc, type); + + /* Remove local reference to the object */ + + acpi_ut_remove_reference(obj_desc); + + if (ACPI_FAILURE(status)) { + goto unlock_and_exit; + } + } + + ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, + "Installing address handler for region %s(%X) on Device %4.4s %p(%p)\n", + acpi_ut_get_region_name(space_id), space_id, + acpi_ut_get_node_name(node), node, obj_desc)); + + /* + * Install the handler + * + * At this point there is no existing handler. Just allocate the object + * for the handler and link it into the list. + */ + handler_obj = + acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_ADDRESS_HANDLER); + if (!handler_obj) { + status = AE_NO_MEMORY; + goto unlock_and_exit; + } + + /* Init handler obj */ + + handler_obj->address_space.space_id = (u8) space_id; + handler_obj->address_space.handler_flags = flags; + handler_obj->address_space.region_list = NULL; + handler_obj->address_space.node = node; + handler_obj->address_space.handler = handler; + handler_obj->address_space.context = context; + handler_obj->address_space.setup = setup; + + /* Install at head of Device.address_space list */ + + handler_obj->address_space.next = obj_desc->device.handler; + + /* + * The Device object is the first reference on the handler_obj. + * Each region that uses the handler adds a reference. + */ + obj_desc->device.handler = handler_obj; + + /* + * Walk the namespace finding all of the regions this + * handler will manage. + * + * Start at the device and search the branch toward + * the leaf nodes until either the leaf is encountered or + * a device is detected that has an address handler of the + * same type. + * + * In either case, back up and search down the remainder + * of the branch + */ + status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, node, ACPI_UINT32_MAX, + ACPI_NS_WALK_UNLOCK, + acpi_ev_install_handler, handler_obj, + NULL); + + unlock_and_exit: + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_execute_reg_methods + * + * PARAMETERS: Node - Namespace node for the device + * space_id - The address space ID + * + * RETURN: Status + * + * DESCRIPTION: Run all _REG methods for the input Space ID; + * Note: assumes namespace is locked, or system init time. + * + ******************************************************************************/ + +acpi_status +acpi_ev_execute_reg_methods(struct acpi_namespace_node *node, + acpi_adr_space_type space_id) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(ev_execute_reg_methods); + + /* + * Run all _REG methods for all Operation Regions for this space ID. This + * is a separate walk in order to handle any interdependencies between + * regions and _REG methods. (i.e. handlers must be installed for all + * regions of this Space ID before we can run any _REG methods) + */ + status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, node, ACPI_UINT32_MAX, + ACPI_NS_WALK_UNLOCK, acpi_ev_reg_run, + &space_id, NULL); + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_reg_run + * + * PARAMETERS: walk_namespace callback + * + * DESCRIPTION: Run _REG method for region objects of the requested space_iD + * + ******************************************************************************/ + +static acpi_status +acpi_ev_reg_run(acpi_handle obj_handle, + u32 level, void *context, void **return_value) +{ + union acpi_operand_object *obj_desc; + struct acpi_namespace_node *node; + acpi_adr_space_type space_id; + acpi_status status; + + space_id = *ACPI_CAST_PTR(acpi_adr_space_type, context); + + /* Convert and validate the device handle */ + + node = acpi_ns_map_handle_to_node(obj_handle); + if (!node) { + return (AE_BAD_PARAMETER); + } + + /* + * We only care about regions.and objects that are allowed to have address + * space handlers + */ + if ((node->type != ACPI_TYPE_REGION) && (node != acpi_gbl_root_node)) { + return (AE_OK); + } + + /* Check for an existing internal object */ + + obj_desc = acpi_ns_get_attached_object(node); + if (!obj_desc) { + + /* No object, just exit */ + + return (AE_OK); + } + + /* Object is a Region */ + + if (obj_desc->region.space_id != space_id) { + + /* This region is for a different address space, just ignore it */ + + return (AE_OK); + } + + status = acpi_ev_execute_reg_method(obj_desc, 1); + return (status); +} diff --git a/drivers/acpi/acpica/evrgnini.c b/drivers/acpi/acpica/evrgnini.c new file mode 100644 index 000000000000..1b7f9fdbef15 --- /dev/null +++ b/drivers/acpi/acpica/evrgnini.c @@ -0,0 +1,684 @@ +/****************************************************************************** + * + * Module Name: evrgnini- ACPI address_space (op_region) init + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include + +#define _COMPONENT ACPI_EVENTS +ACPI_MODULE_NAME("evrgnini") + +/* Local prototypes */ +static u8 acpi_ev_match_pci_root_bridge(char *id); + +static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node); + +/******************************************************************************* + * + * FUNCTION: acpi_ev_system_memory_region_setup + * + * PARAMETERS: Handle - Region we are interested in + * Function - Start or stop + * handler_context - Address space handler context + * region_context - Region specific context + * + * RETURN: Status + * + * DESCRIPTION: Setup a system_memory operation region + * + ******************************************************************************/ + +acpi_status +acpi_ev_system_memory_region_setup(acpi_handle handle, + u32 function, + void *handler_context, void **region_context) +{ + union acpi_operand_object *region_desc = + (union acpi_operand_object *)handle; + struct acpi_mem_space_context *local_region_context; + + ACPI_FUNCTION_TRACE(ev_system_memory_region_setup); + + if (function == ACPI_REGION_DEACTIVATE) { + if (*region_context) { + local_region_context = + (struct acpi_mem_space_context *)*region_context; + + /* Delete a cached mapping if present */ + + if (local_region_context->mapped_length) { + acpi_os_unmap_memory(local_region_context-> + mapped_logical_address, + local_region_context-> + mapped_length); + } + ACPI_FREE(local_region_context); + *region_context = NULL; + } + return_ACPI_STATUS(AE_OK); + } + + /* Create a new context */ + + local_region_context = + ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_mem_space_context)); + if (!(local_region_context)) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* Save the region length and address for use in the handler */ + + local_region_context->length = region_desc->region.length; + local_region_context->address = region_desc->region.address; + + *region_context = local_region_context; + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_io_space_region_setup + * + * PARAMETERS: Handle - Region we are interested in + * Function - Start or stop + * handler_context - Address space handler context + * region_context - Region specific context + * + * RETURN: Status + * + * DESCRIPTION: Setup a IO operation region + * + ******************************************************************************/ + +acpi_status +acpi_ev_io_space_region_setup(acpi_handle handle, + u32 function, + void *handler_context, void **region_context) +{ + ACPI_FUNCTION_TRACE(ev_io_space_region_setup); + + if (function == ACPI_REGION_DEACTIVATE) { + *region_context = NULL; + } else { + *region_context = handler_context; + } + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_pci_config_region_setup + * + * PARAMETERS: Handle - Region we are interested in + * Function - Start or stop + * handler_context - Address space handler context + * region_context - Region specific context + * + * RETURN: Status + * + * DESCRIPTION: Setup a PCI_Config operation region + * + * MUTEX: Assumes namespace is not locked + * + ******************************************************************************/ + +acpi_status +acpi_ev_pci_config_region_setup(acpi_handle handle, + u32 function, + void *handler_context, void **region_context) +{ + acpi_status status = AE_OK; + acpi_integer pci_value; + struct acpi_pci_id *pci_id = *region_context; + union acpi_operand_object *handler_obj; + struct acpi_namespace_node *parent_node; + struct acpi_namespace_node *pci_root_node; + struct acpi_namespace_node *pci_device_node; + union acpi_operand_object *region_obj = + (union acpi_operand_object *)handle; + + ACPI_FUNCTION_TRACE(ev_pci_config_region_setup); + + handler_obj = region_obj->region.handler; + if (!handler_obj) { + /* + * No installed handler. This shouldn't happen because the dispatch + * routine checks before we get here, but we check again just in case. + */ + ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, + "Attempting to init a region %p, with no handler\n", + region_obj)); + return_ACPI_STATUS(AE_NOT_EXIST); + } + + *region_context = NULL; + if (function == ACPI_REGION_DEACTIVATE) { + if (pci_id) { + ACPI_FREE(pci_id); + } + return_ACPI_STATUS(status); + } + + parent_node = acpi_ns_get_parent_node(region_obj->region.node); + + /* + * Get the _SEG and _BBN values from the device upon which the handler + * is installed. + * + * We need to get the _SEG and _BBN objects relative to the PCI BUS device. + * This is the device the handler has been registered to handle. + */ + + /* + * If the address_space.Node is still pointing to the root, we need + * to scan upward for a PCI Root bridge and re-associate the op_region + * handlers with that device. + */ + if (handler_obj->address_space.node == acpi_gbl_root_node) { + + /* Start search from the parent object */ + + pci_root_node = parent_node; + while (pci_root_node != acpi_gbl_root_node) { + + /* Get the _HID/_CID in order to detect a root_bridge */ + + if (acpi_ev_is_pci_root_bridge(pci_root_node)) { + + /* Install a handler for this PCI root bridge */ + + status = + acpi_install_address_space_handler((acpi_handle) pci_root_node, ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL); + if (ACPI_FAILURE(status)) { + if (status == AE_SAME_HANDLER) { + /* + * It is OK if the handler is already installed on the + * root bridge. Still need to return a context object + * for the new PCI_Config operation region, however. + */ + status = AE_OK; + } else { + ACPI_EXCEPTION((AE_INFO, status, + "Could not install PciConfig handler for Root Bridge %4.4s", + acpi_ut_get_node_name + (pci_root_node))); + } + } + break; + } + + pci_root_node = acpi_ns_get_parent_node(pci_root_node); + } + + /* PCI root bridge not found, use namespace root node */ + } else { + pci_root_node = handler_obj->address_space.node; + } + + /* + * If this region is now initialized, we are done. + * (install_address_space_handler could have initialized it) + */ + if (region_obj->region.flags & AOPOBJ_SETUP_COMPLETE) { + return_ACPI_STATUS(AE_OK); + } + + /* Region is still not initialized. Create a new context */ + + pci_id = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_pci_id)); + if (!pci_id) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* + * For PCI_Config space access, we need the segment, bus, device and + * function numbers. Acquire them here. + * + * Find the parent device object. (This allows the operation region to be + * within a subscope under the device, such as a control method.) + */ + pci_device_node = region_obj->region.node; + while (pci_device_node && (pci_device_node->type != ACPI_TYPE_DEVICE)) { + pci_device_node = acpi_ns_get_parent_node(pci_device_node); + } + + if (!pci_device_node) { + ACPI_FREE(pci_id); + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + + /* + * Get the PCI device and function numbers from the _ADR object contained + * in the parent's scope. + */ + status = + acpi_ut_evaluate_numeric_object(METHOD_NAME__ADR, pci_device_node, + &pci_value); + + /* + * The default is zero, and since the allocation above zeroed the data, + * just do nothing on failure. + */ + if (ACPI_SUCCESS(status)) { + pci_id->device = ACPI_HIWORD(ACPI_LODWORD(pci_value)); + pci_id->function = ACPI_LOWORD(ACPI_LODWORD(pci_value)); + } + + /* The PCI segment number comes from the _SEG method */ + + status = + acpi_ut_evaluate_numeric_object(METHOD_NAME__SEG, pci_root_node, + &pci_value); + if (ACPI_SUCCESS(status)) { + pci_id->segment = ACPI_LOWORD(pci_value); + } + + /* The PCI bus number comes from the _BBN method */ + + status = + acpi_ut_evaluate_numeric_object(METHOD_NAME__BBN, pci_root_node, + &pci_value); + if (ACPI_SUCCESS(status)) { + pci_id->bus = ACPI_LOWORD(pci_value); + } + + /* Complete this device's pci_id */ + + acpi_os_derive_pci_id(pci_root_node, region_obj->region.node, &pci_id); + + *region_context = pci_id; + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_match_pci_root_bridge + * + * PARAMETERS: Id - The HID/CID in string format + * + * RETURN: TRUE if the Id is a match for a PCI/PCI-Express Root Bridge + * + * DESCRIPTION: Determine if the input ID is a PCI Root Bridge ID. + * + ******************************************************************************/ + +static u8 acpi_ev_match_pci_root_bridge(char *id) +{ + + /* + * Check if this is a PCI root. + * ACPI 3.0+: check for a PCI Express root also. + */ + if (!(ACPI_STRNCMP(id, + PCI_ROOT_HID_STRING, + sizeof(PCI_ROOT_HID_STRING))) || + !(ACPI_STRNCMP(id, + PCI_EXPRESS_ROOT_HID_STRING, + sizeof(PCI_EXPRESS_ROOT_HID_STRING)))) { + return (TRUE); + } + + return (FALSE); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_is_pci_root_bridge + * + * PARAMETERS: Node - Device node being examined + * + * RETURN: TRUE if device is a PCI/PCI-Express Root Bridge + * + * DESCRIPTION: Determine if the input device represents a PCI Root Bridge by + * examining the _HID and _CID for the device. + * + ******************************************************************************/ + +static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node) +{ + acpi_status status; + struct acpica_device_id hid; + struct acpi_compatible_id_list *cid; + u32 i; + + /* Get the _HID and check for a PCI Root Bridge */ + + status = acpi_ut_execute_HID(node, &hid); + if (ACPI_FAILURE(status)) { + return (FALSE); + } + + if (acpi_ev_match_pci_root_bridge(hid.value)) { + return (TRUE); + } + + /* The _HID did not match. Get the _CID and check for a PCI Root Bridge */ + + status = acpi_ut_execute_CID(node, &cid); + if (ACPI_FAILURE(status)) { + return (FALSE); + } + + /* Check all _CIDs in the returned list */ + + for (i = 0; i < cid->count; i++) { + if (acpi_ev_match_pci_root_bridge(cid->id[i].value)) { + ACPI_FREE(cid); + return (TRUE); + } + } + + ACPI_FREE(cid); + return (FALSE); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_pci_bar_region_setup + * + * PARAMETERS: Handle - Region we are interested in + * Function - Start or stop + * handler_context - Address space handler context + * region_context - Region specific context + * + * RETURN: Status + * + * DESCRIPTION: Setup a pci_bAR operation region + * + * MUTEX: Assumes namespace is not locked + * + ******************************************************************************/ + +acpi_status +acpi_ev_pci_bar_region_setup(acpi_handle handle, + u32 function, + void *handler_context, void **region_context) +{ + ACPI_FUNCTION_TRACE(ev_pci_bar_region_setup); + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_cmos_region_setup + * + * PARAMETERS: Handle - Region we are interested in + * Function - Start or stop + * handler_context - Address space handler context + * region_context - Region specific context + * + * RETURN: Status + * + * DESCRIPTION: Setup a CMOS operation region + * + * MUTEX: Assumes namespace is not locked + * + ******************************************************************************/ + +acpi_status +acpi_ev_cmos_region_setup(acpi_handle handle, + u32 function, + void *handler_context, void **region_context) +{ + ACPI_FUNCTION_TRACE(ev_cmos_region_setup); + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_default_region_setup + * + * PARAMETERS: Handle - Region we are interested in + * Function - Start or stop + * handler_context - Address space handler context + * region_context - Region specific context + * + * RETURN: Status + * + * DESCRIPTION: Default region initialization + * + ******************************************************************************/ + +acpi_status +acpi_ev_default_region_setup(acpi_handle handle, + u32 function, + void *handler_context, void **region_context) +{ + ACPI_FUNCTION_TRACE(ev_default_region_setup); + + if (function == ACPI_REGION_DEACTIVATE) { + *region_context = NULL; + } else { + *region_context = handler_context; + } + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_initialize_region + * + * PARAMETERS: region_obj - Region we are initializing + * acpi_ns_locked - Is namespace locked? + * + * RETURN: Status + * + * DESCRIPTION: Initializes the region, finds any _REG methods and saves them + * for execution at a later time + * + * Get the appropriate address space handler for a newly + * created region. + * + * This also performs address space specific initialization. For + * example, PCI regions must have an _ADR object that contains + * a PCI address in the scope of the definition. This address is + * required to perform an access to PCI config space. + * + * MUTEX: Interpreter should be unlocked, because we may run the _REG + * method for this region. + * + ******************************************************************************/ + +acpi_status +acpi_ev_initialize_region(union acpi_operand_object *region_obj, + u8 acpi_ns_locked) +{ + union acpi_operand_object *handler_obj; + union acpi_operand_object *obj_desc; + acpi_adr_space_type space_id; + struct acpi_namespace_node *node; + acpi_status status; + struct acpi_namespace_node *method_node; + acpi_name *reg_name_ptr = (acpi_name *) METHOD_NAME__REG; + union acpi_operand_object *region_obj2; + + ACPI_FUNCTION_TRACE_U32(ev_initialize_region, acpi_ns_locked); + + if (!region_obj) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + if (region_obj->common.flags & AOPOBJ_OBJECT_INITIALIZED) { + return_ACPI_STATUS(AE_OK); + } + + region_obj2 = acpi_ns_get_secondary_object(region_obj); + if (!region_obj2) { + return_ACPI_STATUS(AE_NOT_EXIST); + } + + node = acpi_ns_get_parent_node(region_obj->region.node); + space_id = region_obj->region.space_id; + + /* Setup defaults */ + + region_obj->region.handler = NULL; + region_obj2->extra.method_REG = NULL; + region_obj->common.flags &= ~(AOPOBJ_SETUP_COMPLETE); + region_obj->common.flags |= AOPOBJ_OBJECT_INITIALIZED; + + /* Find any "_REG" method associated with this region definition */ + + status = + acpi_ns_search_one_scope(*reg_name_ptr, node, ACPI_TYPE_METHOD, + &method_node); + if (ACPI_SUCCESS(status)) { + /* + * The _REG method is optional and there can be only one per region + * definition. This will be executed when the handler is attached + * or removed + */ + region_obj2->extra.method_REG = method_node; + } + + /* + * The following loop depends upon the root Node having no parent + * ie: acpi_gbl_root_node->parent_entry being set to NULL + */ + while (node) { + + /* Check to see if a handler exists */ + + handler_obj = NULL; + obj_desc = acpi_ns_get_attached_object(node); + if (obj_desc) { + + /* Can only be a handler if the object exists */ + + switch (node->type) { + case ACPI_TYPE_DEVICE: + + handler_obj = obj_desc->device.handler; + break; + + case ACPI_TYPE_PROCESSOR: + + handler_obj = obj_desc->processor.handler; + break; + + case ACPI_TYPE_THERMAL: + + handler_obj = obj_desc->thermal_zone.handler; + break; + + default: + /* Ignore other objects */ + break; + } + + while (handler_obj) { + + /* Is this handler of the correct type? */ + + if (handler_obj->address_space.space_id == + space_id) { + + /* Found correct handler */ + + ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, + "Found handler %p for region %p in obj %p\n", + handler_obj, + region_obj, + obj_desc)); + + status = + acpi_ev_attach_region(handler_obj, + region_obj, + acpi_ns_locked); + + /* + * Tell all users that this region is usable by running the _REG + * method + */ + if (acpi_ns_locked) { + status = + acpi_ut_release_mutex + (ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS + (status); + } + } + + status = + acpi_ev_execute_reg_method + (region_obj, 1); + + if (acpi_ns_locked) { + status = + acpi_ut_acquire_mutex + (ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS + (status); + } + } + + return_ACPI_STATUS(AE_OK); + } + + /* Try next handler in the list */ + + handler_obj = handler_obj->address_space.next; + } + } + + /* This node does not have the handler we need; Pop up one level */ + + node = acpi_ns_get_parent_node(node); + } + + /* If we get here, there is no handler for this region */ + + ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, + "No handler for RegionType %s(%X) (RegionObj %p)\n", + acpi_ut_get_region_name(space_id), space_id, + region_obj)); + + return_ACPI_STATUS(AE_NOT_EXIST); +} diff --git a/drivers/acpi/acpica/evsci.c b/drivers/acpi/acpica/evsci.c new file mode 100644 index 000000000000..18dce10c5fb1 --- /dev/null +++ b/drivers/acpi/acpica/evsci.c @@ -0,0 +1,183 @@ +/******************************************************************************* + * + * Module Name: evsci - System Control Interrupt configuration and + * legacy to ACPI mode state transition functions + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_EVENTS +ACPI_MODULE_NAME("evsci") + +/* Local prototypes */ +static u32 ACPI_SYSTEM_XFACE acpi_ev_sci_xrupt_handler(void *context); + +/******************************************************************************* + * + * FUNCTION: acpi_ev_sci_xrupt_handler + * + * PARAMETERS: Context - Calling Context + * + * RETURN: Status code indicates whether interrupt was handled. + * + * DESCRIPTION: Interrupt handler that will figure out what function or + * control method to call to deal with a SCI. + * + ******************************************************************************/ + +static u32 ACPI_SYSTEM_XFACE acpi_ev_sci_xrupt_handler(void *context) +{ + struct acpi_gpe_xrupt_info *gpe_xrupt_list = context; + u32 interrupt_handled = ACPI_INTERRUPT_NOT_HANDLED; + + ACPI_FUNCTION_TRACE(ev_sci_xrupt_handler); + + /* + * We are guaranteed by the ACPI CA initialization/shutdown code that + * if this interrupt handler is installed, ACPI is enabled. + */ + + /* + * Fixed Events: + * Check for and dispatch any Fixed Events that have occurred + */ + interrupt_handled |= acpi_ev_fixed_event_detect(); + + /* + * General Purpose Events: + * Check for and dispatch any GPEs that have occurred + */ + interrupt_handled |= acpi_ev_gpe_detect(gpe_xrupt_list); + + return_UINT32(interrupt_handled); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_gpe_xrupt_handler + * + * PARAMETERS: Context - Calling Context + * + * RETURN: Status code indicates whether interrupt was handled. + * + * DESCRIPTION: Handler for GPE Block Device interrupts + * + ******************************************************************************/ + +u32 ACPI_SYSTEM_XFACE acpi_ev_gpe_xrupt_handler(void *context) +{ + struct acpi_gpe_xrupt_info *gpe_xrupt_list = context; + u32 interrupt_handled = ACPI_INTERRUPT_NOT_HANDLED; + + ACPI_FUNCTION_TRACE(ev_gpe_xrupt_handler); + + /* + * We are guaranteed by the ACPI CA initialization/shutdown code that + * if this interrupt handler is installed, ACPI is enabled. + */ + + /* GPEs: Check for and dispatch any GPEs that have occurred */ + + interrupt_handled |= acpi_ev_gpe_detect(gpe_xrupt_list); + + return_UINT32(interrupt_handled); +} + +/****************************************************************************** + * + * FUNCTION: acpi_ev_install_sci_handler + * + * PARAMETERS: none + * + * RETURN: Status + * + * DESCRIPTION: Installs SCI handler. + * + ******************************************************************************/ + +u32 acpi_ev_install_sci_handler(void) +{ + u32 status = AE_OK; + + ACPI_FUNCTION_TRACE(ev_install_sci_handler); + + status = + acpi_os_install_interrupt_handler((u32) acpi_gbl_FADT.sci_interrupt, + acpi_ev_sci_xrupt_handler, + acpi_gbl_gpe_xrupt_list_head); + return_ACPI_STATUS(status); +} + +/****************************************************************************** + * + * FUNCTION: acpi_ev_remove_sci_handler + * + * PARAMETERS: none + * + * RETURN: E_OK if handler uninstalled OK, E_ERROR if handler was not + * installed to begin with + * + * DESCRIPTION: Remove the SCI interrupt handler. No further SCIs will be + * taken. + * + * Note: It doesn't seem important to disable all events or set the event + * enable registers to their original values. The OS should disable + * the SCI interrupt level when the handler is removed, so no more + * events will come in. + * + ******************************************************************************/ + +acpi_status acpi_ev_remove_sci_handler(void) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(ev_remove_sci_handler); + + /* Just let the OS remove the handler and disable the level */ + + status = + acpi_os_remove_interrupt_handler((u32) acpi_gbl_FADT.sci_interrupt, + acpi_ev_sci_xrupt_handler); + + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c new file mode 100644 index 000000000000..3b6a069f5b06 --- /dev/null +++ b/drivers/acpi/acpica/evxface.c @@ -0,0 +1,821 @@ +/****************************************************************************** + * + * Module Name: evxface - External interfaces for ACPI events + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_EVENTS +ACPI_MODULE_NAME("evxface") + +/******************************************************************************* + * + * FUNCTION: acpi_install_exception_handler + * + * PARAMETERS: Handler - Pointer to the handler function for the + * event + * + * RETURN: Status + * + * DESCRIPTION: Saves the pointer to the handler function + * + ******************************************************************************/ +#ifdef ACPI_FUTURE_USAGE +acpi_status acpi_install_exception_handler(acpi_exception_handler handler) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_install_exception_handler); + + status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Don't allow two handlers. */ + + if (acpi_gbl_exception_handler) { + status = AE_ALREADY_EXISTS; + goto cleanup; + } + + /* Install the handler */ + + acpi_gbl_exception_handler = handler; + + cleanup: + (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_install_exception_handler) +#endif /* ACPI_FUTURE_USAGE */ +/******************************************************************************* + * + * FUNCTION: acpi_install_fixed_event_handler + * + * PARAMETERS: Event - Event type to enable. + * Handler - Pointer to the handler function for the + * event + * Context - Value passed to the handler on each GPE + * + * RETURN: Status + * + * DESCRIPTION: Saves the pointer to the handler function and then enables the + * event. + * + ******************************************************************************/ +acpi_status +acpi_install_fixed_event_handler(u32 event, + acpi_event_handler handler, void *context) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_install_fixed_event_handler); + + /* Parameter validation */ + + if (event > ACPI_EVENT_MAX) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Don't allow two handlers. */ + + if (NULL != acpi_gbl_fixed_event_handlers[event].handler) { + status = AE_ALREADY_EXISTS; + goto cleanup; + } + + /* Install the handler before enabling the event */ + + acpi_gbl_fixed_event_handlers[event].handler = handler; + acpi_gbl_fixed_event_handlers[event].context = context; + + status = acpi_clear_event(event); + if (ACPI_SUCCESS(status)) + status = acpi_enable_event(event, 0); + if (ACPI_FAILURE(status)) { + ACPI_WARNING((AE_INFO, "Could not enable fixed event %X", + event)); + + /* Remove the handler */ + + acpi_gbl_fixed_event_handlers[event].handler = NULL; + acpi_gbl_fixed_event_handlers[event].context = NULL; + } else { + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Enabled fixed event %X, Handler=%p\n", event, + handler)); + } + + cleanup: + (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_install_fixed_event_handler) + +/******************************************************************************* + * + * FUNCTION: acpi_remove_fixed_event_handler + * + * PARAMETERS: Event - Event type to disable. + * Handler - Address of the handler + * + * RETURN: Status + * + * DESCRIPTION: Disables the event and unregisters the event handler. + * + ******************************************************************************/ +acpi_status +acpi_remove_fixed_event_handler(u32 event, acpi_event_handler handler) +{ + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE(acpi_remove_fixed_event_handler); + + /* Parameter validation */ + + if (event > ACPI_EVENT_MAX) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Disable the event before removing the handler */ + + status = acpi_disable_event(event, 0); + + /* Always Remove the handler */ + + acpi_gbl_fixed_event_handlers[event].handler = NULL; + acpi_gbl_fixed_event_handlers[event].context = NULL; + + if (ACPI_FAILURE(status)) { + ACPI_WARNING((AE_INFO, + "Could not write to fixed event enable register %X", + event)); + } else { + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Disabled fixed event %X\n", + event)); + } + + (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_remove_fixed_event_handler) + +/******************************************************************************* + * + * FUNCTION: acpi_install_notify_handler + * + * PARAMETERS: Device - The device for which notifies will be handled + * handler_type - The type of handler: + * ACPI_SYSTEM_NOTIFY: system_handler (00-7f) + * ACPI_DEVICE_NOTIFY: driver_handler (80-ff) + * ACPI_ALL_NOTIFY: both system and device + * Handler - Address of the handler + * Context - Value passed to the handler on each GPE + * + * RETURN: Status + * + * DESCRIPTION: Install a handler for notifies on an ACPI device + * + ******************************************************************************/ +acpi_status +acpi_install_notify_handler(acpi_handle device, + u32 handler_type, + acpi_notify_handler handler, void *context) +{ + union acpi_operand_object *obj_desc; + union acpi_operand_object *notify_obj; + struct acpi_namespace_node *node; + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_install_notify_handler); + + /* Parameter validation */ + + if ((!device) || + (!handler) || (handler_type > ACPI_MAX_NOTIFY_HANDLER_TYPE)) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Convert and validate the device handle */ + + node = acpi_ns_map_handle_to_node(device); + if (!node) { + status = AE_BAD_PARAMETER; + goto unlock_and_exit; + } + + /* + * Root Object: + * Registering a notify handler on the root object indicates that the + * caller wishes to receive notifications for all objects. Note that + * only one global handler can be regsitered (per notify type). + */ + if (device == ACPI_ROOT_OBJECT) { + + /* Make sure the handler is not already installed */ + + if (((handler_type & ACPI_SYSTEM_NOTIFY) && + acpi_gbl_system_notify.handler) || + ((handler_type & ACPI_DEVICE_NOTIFY) && + acpi_gbl_device_notify.handler)) { + status = AE_ALREADY_EXISTS; + goto unlock_and_exit; + } + + if (handler_type & ACPI_SYSTEM_NOTIFY) { + acpi_gbl_system_notify.node = node; + acpi_gbl_system_notify.handler = handler; + acpi_gbl_system_notify.context = context; + } + + if (handler_type & ACPI_DEVICE_NOTIFY) { + acpi_gbl_device_notify.node = node; + acpi_gbl_device_notify.handler = handler; + acpi_gbl_device_notify.context = context; + } + + /* Global notify handler installed */ + } + + /* + * All Other Objects: + * Caller will only receive notifications specific to the target object. + * Note that only certain object types can receive notifications. + */ + else { + /* Notifies allowed on this object? */ + + if (!acpi_ev_is_notify_object(node)) { + status = AE_TYPE; + goto unlock_and_exit; + } + + /* Check for an existing internal object */ + + obj_desc = acpi_ns_get_attached_object(node); + if (obj_desc) { + + /* Object exists - make sure there's no handler */ + + if (((handler_type & ACPI_SYSTEM_NOTIFY) && + obj_desc->common_notify.system_notify) || + ((handler_type & ACPI_DEVICE_NOTIFY) && + obj_desc->common_notify.device_notify)) { + status = AE_ALREADY_EXISTS; + goto unlock_and_exit; + } + } else { + /* Create a new object */ + + obj_desc = acpi_ut_create_internal_object(node->type); + if (!obj_desc) { + status = AE_NO_MEMORY; + goto unlock_and_exit; + } + + /* Attach new object to the Node */ + + status = + acpi_ns_attach_object(device, obj_desc, node->type); + + /* Remove local reference to the object */ + + acpi_ut_remove_reference(obj_desc); + if (ACPI_FAILURE(status)) { + goto unlock_and_exit; + } + } + + /* Install the handler */ + + notify_obj = + acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_NOTIFY); + if (!notify_obj) { + status = AE_NO_MEMORY; + goto unlock_and_exit; + } + + notify_obj->notify.node = node; + notify_obj->notify.handler = handler; + notify_obj->notify.context = context; + + if (handler_type & ACPI_SYSTEM_NOTIFY) { + obj_desc->common_notify.system_notify = notify_obj; + } + + if (handler_type & ACPI_DEVICE_NOTIFY) { + obj_desc->common_notify.device_notify = notify_obj; + } + + if (handler_type == ACPI_ALL_NOTIFY) { + + /* Extra ref if installed in both */ + + acpi_ut_add_reference(notify_obj); + } + } + + unlock_and_exit: + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_install_notify_handler) + +/******************************************************************************* + * + * FUNCTION: acpi_remove_notify_handler + * + * PARAMETERS: Device - The device for which notifies will be handled + * handler_type - The type of handler: + * ACPI_SYSTEM_NOTIFY: system_handler (00-7f) + * ACPI_DEVICE_NOTIFY: driver_handler (80-ff) + * ACPI_ALL_NOTIFY: both system and device + * Handler - Address of the handler + * + * RETURN: Status + * + * DESCRIPTION: Remove a handler for notifies on an ACPI device + * + ******************************************************************************/ +acpi_status +acpi_remove_notify_handler(acpi_handle device, + u32 handler_type, acpi_notify_handler handler) +{ + union acpi_operand_object *notify_obj; + union acpi_operand_object *obj_desc; + struct acpi_namespace_node *node; + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_remove_notify_handler); + + /* Parameter validation */ + + if ((!device) || + (!handler) || (handler_type > ACPI_MAX_NOTIFY_HANDLER_TYPE)) { + status = AE_BAD_PARAMETER; + goto exit; + } + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + goto exit; + } + + /* Convert and validate the device handle */ + + node = acpi_ns_map_handle_to_node(device); + if (!node) { + status = AE_BAD_PARAMETER; + goto unlock_and_exit; + } + + /* Root Object */ + + if (device == ACPI_ROOT_OBJECT) { + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Removing notify handler for namespace root object\n")); + + if (((handler_type & ACPI_SYSTEM_NOTIFY) && + !acpi_gbl_system_notify.handler) || + ((handler_type & ACPI_DEVICE_NOTIFY) && + !acpi_gbl_device_notify.handler)) { + status = AE_NOT_EXIST; + goto unlock_and_exit; + } + + /* Make sure all deferred tasks are completed */ + + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + acpi_os_wait_events_complete(NULL); + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + goto exit; + } + + if (handler_type & ACPI_SYSTEM_NOTIFY) { + acpi_gbl_system_notify.node = NULL; + acpi_gbl_system_notify.handler = NULL; + acpi_gbl_system_notify.context = NULL; + } + + if (handler_type & ACPI_DEVICE_NOTIFY) { + acpi_gbl_device_notify.node = NULL; + acpi_gbl_device_notify.handler = NULL; + acpi_gbl_device_notify.context = NULL; + } + } + + /* All Other Objects */ + + else { + /* Notifies allowed on this object? */ + + if (!acpi_ev_is_notify_object(node)) { + status = AE_TYPE; + goto unlock_and_exit; + } + + /* Check for an existing internal object */ + + obj_desc = acpi_ns_get_attached_object(node); + if (!obj_desc) { + status = AE_NOT_EXIST; + goto unlock_and_exit; + } + + /* Object exists - make sure there's an existing handler */ + + if (handler_type & ACPI_SYSTEM_NOTIFY) { + notify_obj = obj_desc->common_notify.system_notify; + if (!notify_obj) { + status = AE_NOT_EXIST; + goto unlock_and_exit; + } + + if (notify_obj->notify.handler != handler) { + status = AE_BAD_PARAMETER; + goto unlock_and_exit; + } + /* Make sure all deferred tasks are completed */ + + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + acpi_os_wait_events_complete(NULL); + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + goto exit; + } + + /* Remove the handler */ + obj_desc->common_notify.system_notify = NULL; + acpi_ut_remove_reference(notify_obj); + } + + if (handler_type & ACPI_DEVICE_NOTIFY) { + notify_obj = obj_desc->common_notify.device_notify; + if (!notify_obj) { + status = AE_NOT_EXIST; + goto unlock_and_exit; + } + + if (notify_obj->notify.handler != handler) { + status = AE_BAD_PARAMETER; + goto unlock_and_exit; + } + /* Make sure all deferred tasks are completed */ + + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + acpi_os_wait_events_complete(NULL); + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + goto exit; + } + + /* Remove the handler */ + obj_desc->common_notify.device_notify = NULL; + acpi_ut_remove_reference(notify_obj); + } + } + + unlock_and_exit: + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + exit: + if (ACPI_FAILURE(status)) + ACPI_EXCEPTION((AE_INFO, status, "Removing notify handler")); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_remove_notify_handler) + +/******************************************************************************* + * + * FUNCTION: acpi_install_gpe_handler + * + * PARAMETERS: gpe_device - Namespace node for the GPE (NULL for FADT + * defined GPEs) + * gpe_number - The GPE number within the GPE block + * Type - Whether this GPE should be treated as an + * edge- or level-triggered interrupt. + * Address - Address of the handler + * Context - Value passed to the handler on each GPE + * + * RETURN: Status + * + * DESCRIPTION: Install a handler for a General Purpose Event. + * + ******************************************************************************/ +acpi_status +acpi_install_gpe_handler(acpi_handle gpe_device, + u32 gpe_number, + u32 type, acpi_event_handler address, void *context) +{ + struct acpi_gpe_event_info *gpe_event_info; + struct acpi_handler_info *handler; + acpi_status status; + acpi_cpu_flags flags; + + ACPI_FUNCTION_TRACE(acpi_install_gpe_handler); + + /* Parameter validation */ + + if ((!address) || (type > ACPI_GPE_XRUPT_TYPE_MASK)) { + status = AE_BAD_PARAMETER; + goto exit; + } + + status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); + if (ACPI_FAILURE(status)) { + goto exit; + } + + /* Ensure that we have a valid GPE number */ + + gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number); + if (!gpe_event_info) { + status = AE_BAD_PARAMETER; + goto unlock_and_exit; + } + + /* Make sure that there isn't a handler there already */ + + if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) == + ACPI_GPE_DISPATCH_HANDLER) { + status = AE_ALREADY_EXISTS; + goto unlock_and_exit; + } + + /* Allocate and init handler object */ + + handler = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_handler_info)); + if (!handler) { + status = AE_NO_MEMORY; + goto unlock_and_exit; + } + + handler->address = address; + handler->context = context; + handler->method_node = gpe_event_info->dispatch.method_node; + + /* Disable the GPE before installing the handler */ + + status = acpi_ev_disable_gpe(gpe_event_info); + if (ACPI_FAILURE(status)) { + goto unlock_and_exit; + } + + /* Install the handler */ + + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); + gpe_event_info->dispatch.handler = handler; + + /* Setup up dispatch flags to indicate handler (vs. method) */ + + gpe_event_info->flags &= ~(ACPI_GPE_XRUPT_TYPE_MASK | ACPI_GPE_DISPATCH_MASK); /* Clear bits */ + gpe_event_info->flags |= (u8) (type | ACPI_GPE_DISPATCH_HANDLER); + + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); + + unlock_and_exit: + (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); + exit: + if (ACPI_FAILURE(status)) + ACPI_EXCEPTION((AE_INFO, status, + "Installing notify handler failed")); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_install_gpe_handler) + +/******************************************************************************* + * + * FUNCTION: acpi_remove_gpe_handler + * + * PARAMETERS: gpe_device - Namespace node for the GPE (NULL for FADT + * defined GPEs) + * gpe_number - The event to remove a handler + * Address - Address of the handler + * + * RETURN: Status + * + * DESCRIPTION: Remove a handler for a General Purpose acpi_event. + * + ******************************************************************************/ +acpi_status +acpi_remove_gpe_handler(acpi_handle gpe_device, + u32 gpe_number, acpi_event_handler address) +{ + struct acpi_gpe_event_info *gpe_event_info; + struct acpi_handler_info *handler; + acpi_status status; + acpi_cpu_flags flags; + + ACPI_FUNCTION_TRACE(acpi_remove_gpe_handler); + + /* Parameter validation */ + + if (!address) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Ensure that we have a valid GPE number */ + + gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number); + if (!gpe_event_info) { + status = AE_BAD_PARAMETER; + goto unlock_and_exit; + } + + /* Make sure that a handler is indeed installed */ + + if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) != + ACPI_GPE_DISPATCH_HANDLER) { + status = AE_NOT_EXIST; + goto unlock_and_exit; + } + + /* Make sure that the installed handler is the same */ + + if (gpe_event_info->dispatch.handler->address != address) { + status = AE_BAD_PARAMETER; + goto unlock_and_exit; + } + + /* Disable the GPE before removing the handler */ + + status = acpi_ev_disable_gpe(gpe_event_info); + if (ACPI_FAILURE(status)) { + goto unlock_and_exit; + } + + /* Make sure all deferred tasks are completed */ + + (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); + acpi_os_wait_events_complete(NULL); + status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Remove the handler */ + + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); + handler = gpe_event_info->dispatch.handler; + + /* Restore Method node (if any), set dispatch flags */ + + gpe_event_info->dispatch.method_node = handler->method_node; + gpe_event_info->flags &= ~ACPI_GPE_DISPATCH_MASK; /* Clear bits */ + if (handler->method_node) { + gpe_event_info->flags |= ACPI_GPE_DISPATCH_METHOD; + } + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); + + /* Now we can free the handler object */ + + ACPI_FREE(handler); + + unlock_and_exit: + (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_remove_gpe_handler) + +/******************************************************************************* + * + * FUNCTION: acpi_acquire_global_lock + * + * PARAMETERS: Timeout - How long the caller is willing to wait + * Handle - Where the handle to the lock is returned + * (if acquired) + * + * RETURN: Status + * + * DESCRIPTION: Acquire the ACPI Global Lock + * + * Note: Allows callers with the same thread ID to acquire the global lock + * multiple times. In other words, externally, the behavior of the global lock + * is identical to an AML mutex. On the first acquire, a new handle is + * returned. On any subsequent calls to acquire by the same thread, the same + * handle is returned. + * + ******************************************************************************/ +acpi_status acpi_acquire_global_lock(u16 timeout, u32 * handle) +{ + acpi_status status; + + if (!handle) { + return (AE_BAD_PARAMETER); + } + + /* Must lock interpreter to prevent race conditions */ + + acpi_ex_enter_interpreter(); + + status = acpi_ex_acquire_mutex_object(timeout, + acpi_gbl_global_lock_mutex, + acpi_os_get_thread_id()); + + if (ACPI_SUCCESS(status)) { + + /* Return the global lock handle (updated in acpi_ev_acquire_global_lock) */ + + *handle = acpi_gbl_global_lock_handle; + } + + acpi_ex_exit_interpreter(); + return (status); +} + +ACPI_EXPORT_SYMBOL(acpi_acquire_global_lock) + +/******************************************************************************* + * + * FUNCTION: acpi_release_global_lock + * + * PARAMETERS: Handle - Returned from acpi_acquire_global_lock + * + * RETURN: Status + * + * DESCRIPTION: Release the ACPI Global Lock. The handle must be valid. + * + ******************************************************************************/ +acpi_status acpi_release_global_lock(u32 handle) +{ + acpi_status status; + + if (!handle || (handle != acpi_gbl_global_lock_handle)) { + return (AE_NOT_ACQUIRED); + } + + status = acpi_ex_release_mutex_object(acpi_gbl_global_lock_mutex); + return (status); +} + +ACPI_EXPORT_SYMBOL(acpi_release_global_lock) diff --git a/drivers/acpi/acpica/evxfevnt.c b/drivers/acpi/acpica/evxfevnt.c new file mode 100644 index 000000000000..f33cc30cb6b8 --- /dev/null +++ b/drivers/acpi/acpica/evxfevnt.c @@ -0,0 +1,871 @@ +/****************************************************************************** + * + * Module Name: evxfevnt - External Interfaces, ACPI event disable/enable + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_EVENTS +ACPI_MODULE_NAME("evxfevnt") + +/* Local prototypes */ +acpi_status +acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info, + struct acpi_gpe_block_info *gpe_block, void *context); + +/******************************************************************************* + * + * FUNCTION: acpi_enable + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Transfers the system into ACPI mode. + * + ******************************************************************************/ + +acpi_status acpi_enable(void) +{ + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE(acpi_enable); + + /* ACPI tables must be present */ + + if (!acpi_tb_tables_loaded()) { + return_ACPI_STATUS(AE_NO_ACPI_TABLES); + } + + /* Check current mode */ + + if (acpi_hw_get_mode() == ACPI_SYS_MODE_ACPI) { + ACPI_DEBUG_PRINT((ACPI_DB_INIT, + "System is already in ACPI mode\n")); + } else { + /* Transition to ACPI mode */ + + status = acpi_hw_set_mode(ACPI_SYS_MODE_ACPI); + if (ACPI_FAILURE(status)) { + ACPI_ERROR((AE_INFO, + "Could not transition to ACPI mode")); + return_ACPI_STATUS(status); + } + + ACPI_DEBUG_PRINT((ACPI_DB_INIT, + "Transition to ACPI mode successful\n")); + } + + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_enable) + +/******************************************************************************* + * + * FUNCTION: acpi_disable + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Transfers the system into LEGACY (non-ACPI) mode. + * + ******************************************************************************/ +acpi_status acpi_disable(void) +{ + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE(acpi_disable); + + if (acpi_hw_get_mode() == ACPI_SYS_MODE_LEGACY) { + ACPI_DEBUG_PRINT((ACPI_DB_INIT, + "System is already in legacy (non-ACPI) mode\n")); + } else { + /* Transition to LEGACY mode */ + + status = acpi_hw_set_mode(ACPI_SYS_MODE_LEGACY); + + if (ACPI_FAILURE(status)) { + ACPI_ERROR((AE_INFO, + "Could not exit ACPI mode to legacy mode")); + return_ACPI_STATUS(status); + } + + ACPI_DEBUG_PRINT((ACPI_DB_INIT, "ACPI mode disabled\n")); + } + + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_disable) + +/******************************************************************************* + * + * FUNCTION: acpi_enable_event + * + * PARAMETERS: Event - The fixed eventto be enabled + * Flags - Reserved + * + * RETURN: Status + * + * DESCRIPTION: Enable an ACPI event (fixed) + * + ******************************************************************************/ +acpi_status acpi_enable_event(u32 event, u32 flags) +{ + acpi_status status = AE_OK; + u32 value; + + ACPI_FUNCTION_TRACE(acpi_enable_event); + + /* Decode the Fixed Event */ + + if (event > ACPI_EVENT_MAX) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* + * Enable the requested fixed event (by writing a one to the enable + * register bit) + */ + status = + acpi_set_register(acpi_gbl_fixed_event_info[event]. + enable_register_id, 1); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Make sure that the hardware responded */ + + status = + acpi_get_register(acpi_gbl_fixed_event_info[event]. + enable_register_id, &value); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + if (value != 1) { + ACPI_ERROR((AE_INFO, + "Could not enable %s event", + acpi_ut_get_event_name(event))); + return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE); + } + + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_enable_event) + +/******************************************************************************* + * + * FUNCTION: acpi_set_gpe_type + * + * PARAMETERS: gpe_device - Parent GPE Device + * gpe_number - GPE level within the GPE block + * Type - New GPE type + * + * RETURN: Status + * + * DESCRIPTION: Set the type of an individual GPE + * + ******************************************************************************/ +acpi_status acpi_set_gpe_type(acpi_handle gpe_device, u32 gpe_number, u8 type) +{ + acpi_status status = AE_OK; + struct acpi_gpe_event_info *gpe_event_info; + + ACPI_FUNCTION_TRACE(acpi_set_gpe_type); + + /* Ensure that we have a valid GPE number */ + + gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number); + if (!gpe_event_info) { + status = AE_BAD_PARAMETER; + goto unlock_and_exit; + } + + if ((gpe_event_info->flags & ACPI_GPE_TYPE_MASK) == type) { + return_ACPI_STATUS(AE_OK); + } + + /* Set the new type (will disable GPE if currently enabled) */ + + status = acpi_ev_set_gpe_type(gpe_event_info, type); + + unlock_and_exit: + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_set_gpe_type) + +/******************************************************************************* + * + * FUNCTION: acpi_enable_gpe + * + * PARAMETERS: gpe_device - Parent GPE Device + * gpe_number - GPE level within the GPE block + * Flags - Just enable, or also wake enable? + * Called from ISR or not + * + * RETURN: Status + * + * DESCRIPTION: Enable an ACPI event (general purpose) + * + ******************************************************************************/ +acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number) +{ + acpi_status status = AE_OK; + acpi_cpu_flags flags; + struct acpi_gpe_event_info *gpe_event_info; + + ACPI_FUNCTION_TRACE(acpi_enable_gpe); + + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); + + /* Ensure that we have a valid GPE number */ + + gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number); + if (!gpe_event_info) { + status = AE_BAD_PARAMETER; + goto unlock_and_exit; + } + + /* Perform the enable */ + + status = acpi_ev_enable_gpe(gpe_event_info, TRUE); + + unlock_and_exit: + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_enable_gpe) + +/******************************************************************************* + * + * FUNCTION: acpi_disable_gpe + * + * PARAMETERS: gpe_device - Parent GPE Device + * gpe_number - GPE level within the GPE block + * Flags - Just disable, or also wake disable? + * Called from ISR or not + * + * RETURN: Status + * + * DESCRIPTION: Disable an ACPI event (general purpose) + * + ******************************************************************************/ +acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number) +{ + acpi_status status = AE_OK; + acpi_cpu_flags flags; + struct acpi_gpe_event_info *gpe_event_info; + + ACPI_FUNCTION_TRACE(acpi_disable_gpe); + + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); + /* Ensure that we have a valid GPE number */ + + gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number); + if (!gpe_event_info) { + status = AE_BAD_PARAMETER; + goto unlock_and_exit; + } + + status = acpi_ev_disable_gpe(gpe_event_info); + +unlock_and_exit: + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_disable_gpe) + +/******************************************************************************* + * + * FUNCTION: acpi_disable_event + * + * PARAMETERS: Event - The fixed eventto be enabled + * Flags - Reserved + * + * RETURN: Status + * + * DESCRIPTION: Disable an ACPI event (fixed) + * + ******************************************************************************/ +acpi_status acpi_disable_event(u32 event, u32 flags) +{ + acpi_status status = AE_OK; + u32 value; + + ACPI_FUNCTION_TRACE(acpi_disable_event); + + /* Decode the Fixed Event */ + + if (event > ACPI_EVENT_MAX) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* + * Disable the requested fixed event (by writing a zero to the enable + * register bit) + */ + status = + acpi_set_register(acpi_gbl_fixed_event_info[event]. + enable_register_id, 0); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + status = + acpi_get_register(acpi_gbl_fixed_event_info[event]. + enable_register_id, &value); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + if (value != 0) { + ACPI_ERROR((AE_INFO, + "Could not disable %s events", + acpi_ut_get_event_name(event))); + return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE); + } + + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_disable_event) + +/******************************************************************************* + * + * FUNCTION: acpi_clear_event + * + * PARAMETERS: Event - The fixed event to be cleared + * + * RETURN: Status + * + * DESCRIPTION: Clear an ACPI event (fixed) + * + ******************************************************************************/ +acpi_status acpi_clear_event(u32 event) +{ + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE(acpi_clear_event); + + /* Decode the Fixed Event */ + + if (event > ACPI_EVENT_MAX) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* + * Clear the requested fixed event (By writing a one to the status + * register bit) + */ + status = + acpi_set_register(acpi_gbl_fixed_event_info[event]. + status_register_id, 1); + + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_clear_event) + +/******************************************************************************* + * + * FUNCTION: acpi_clear_gpe + * + * PARAMETERS: gpe_device - Parent GPE Device + * gpe_number - GPE level within the GPE block + * Flags - Called from an ISR or not + * + * RETURN: Status + * + * DESCRIPTION: Clear an ACPI event (general purpose) + * + ******************************************************************************/ +acpi_status acpi_clear_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags) +{ + acpi_status status = AE_OK; + struct acpi_gpe_event_info *gpe_event_info; + + ACPI_FUNCTION_TRACE(acpi_clear_gpe); + + /* Use semaphore lock if not executing at interrupt level */ + + if (flags & ACPI_NOT_ISR) { + status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + + /* Ensure that we have a valid GPE number */ + + gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number); + if (!gpe_event_info) { + status = AE_BAD_PARAMETER; + goto unlock_and_exit; + } + + status = acpi_hw_clear_gpe(gpe_event_info); + + unlock_and_exit: + if (flags & ACPI_NOT_ISR) { + (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); + } + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_clear_gpe) +/******************************************************************************* + * + * FUNCTION: acpi_get_event_status + * + * PARAMETERS: Event - The fixed event + * event_status - Where the current status of the event will + * be returned + * + * RETURN: Status + * + * DESCRIPTION: Obtains and returns the current status of the event + * + ******************************************************************************/ +acpi_status acpi_get_event_status(u32 event, acpi_event_status * event_status) +{ + acpi_status status = AE_OK; + u32 value; + + ACPI_FUNCTION_TRACE(acpi_get_event_status); + + if (!event_status) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* Decode the Fixed Event */ + + if (event > ACPI_EVENT_MAX) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* Get the status of the requested fixed event */ + + status = + acpi_get_register(acpi_gbl_fixed_event_info[event]. + enable_register_id, &value); + if (ACPI_FAILURE(status)) + return_ACPI_STATUS(status); + + *event_status = value; + + status = + acpi_get_register(acpi_gbl_fixed_event_info[event]. + status_register_id, &value); + if (ACPI_FAILURE(status)) + return_ACPI_STATUS(status); + + if (value) + *event_status |= ACPI_EVENT_FLAG_SET; + + if (acpi_gbl_fixed_event_handlers[event].handler) + *event_status |= ACPI_EVENT_FLAG_HANDLE; + + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_get_event_status) + +/******************************************************************************* + * + * FUNCTION: acpi_get_gpe_status + * + * PARAMETERS: gpe_device - Parent GPE Device + * gpe_number - GPE level within the GPE block + * Flags - Called from an ISR or not + * event_status - Where the current status of the event will + * be returned + * + * RETURN: Status + * + * DESCRIPTION: Get status of an event (general purpose) + * + ******************************************************************************/ +acpi_status +acpi_get_gpe_status(acpi_handle gpe_device, + u32 gpe_number, u32 flags, acpi_event_status * event_status) +{ + acpi_status status = AE_OK; + struct acpi_gpe_event_info *gpe_event_info; + + ACPI_FUNCTION_TRACE(acpi_get_gpe_status); + + /* Use semaphore lock if not executing at interrupt level */ + + if (flags & ACPI_NOT_ISR) { + status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + + /* Ensure that we have a valid GPE number */ + + gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number); + if (!gpe_event_info) { + status = AE_BAD_PARAMETER; + goto unlock_and_exit; + } + + /* Obtain status on the requested GPE number */ + + status = acpi_hw_get_gpe_status(gpe_event_info, event_status); + + if (gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) + *event_status |= ACPI_EVENT_FLAG_HANDLE; + + unlock_and_exit: + if (flags & ACPI_NOT_ISR) { + (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); + } + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_get_gpe_status) +/******************************************************************************* + * + * FUNCTION: acpi_install_gpe_block + * + * PARAMETERS: gpe_device - Handle to the parent GPE Block Device + * gpe_block_address - Address and space_iD + * register_count - Number of GPE register pairs in the block + * interrupt_number - H/W interrupt for the block + * + * RETURN: Status + * + * DESCRIPTION: Create and Install a block of GPE registers + * + ******************************************************************************/ +acpi_status +acpi_install_gpe_block(acpi_handle gpe_device, + struct acpi_generic_address *gpe_block_address, + u32 register_count, u32 interrupt_number) +{ + acpi_status status; + union acpi_operand_object *obj_desc; + struct acpi_namespace_node *node; + struct acpi_gpe_block_info *gpe_block; + + ACPI_FUNCTION_TRACE(acpi_install_gpe_block); + + if ((!gpe_device) || (!gpe_block_address) || (!register_count)) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return (status); + } + + node = acpi_ns_map_handle_to_node(gpe_device); + if (!node) { + status = AE_BAD_PARAMETER; + goto unlock_and_exit; + } + + /* + * For user-installed GPE Block Devices, the gpe_block_base_number + * is always zero + */ + status = + acpi_ev_create_gpe_block(node, gpe_block_address, register_count, 0, + interrupt_number, &gpe_block); + if (ACPI_FAILURE(status)) { + goto unlock_and_exit; + } + + /* Run the _PRW methods and enable the GPEs */ + + status = acpi_ev_initialize_gpe_block(node, gpe_block); + if (ACPI_FAILURE(status)) { + goto unlock_and_exit; + } + + /* Get the device_object attached to the node */ + + obj_desc = acpi_ns_get_attached_object(node); + if (!obj_desc) { + + /* No object, create a new one */ + + obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_DEVICE); + if (!obj_desc) { + status = AE_NO_MEMORY; + goto unlock_and_exit; + } + + status = + acpi_ns_attach_object(node, obj_desc, ACPI_TYPE_DEVICE); + + /* Remove local reference to the object */ + + acpi_ut_remove_reference(obj_desc); + + if (ACPI_FAILURE(status)) { + goto unlock_and_exit; + } + } + + /* Install the GPE block in the device_object */ + + obj_desc->device.gpe_block = gpe_block; + + unlock_and_exit: + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_install_gpe_block) + +/******************************************************************************* + * + * FUNCTION: acpi_remove_gpe_block + * + * PARAMETERS: gpe_device - Handle to the parent GPE Block Device + * + * RETURN: Status + * + * DESCRIPTION: Remove a previously installed block of GPE registers + * + ******************************************************************************/ +acpi_status acpi_remove_gpe_block(acpi_handle gpe_device) +{ + union acpi_operand_object *obj_desc; + acpi_status status; + struct acpi_namespace_node *node; + + ACPI_FUNCTION_TRACE(acpi_remove_gpe_block); + + if (!gpe_device) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return (status); + } + + node = acpi_ns_map_handle_to_node(gpe_device); + if (!node) { + status = AE_BAD_PARAMETER; + goto unlock_and_exit; + } + + /* Get the device_object attached to the node */ + + obj_desc = acpi_ns_get_attached_object(node); + if (!obj_desc || !obj_desc->device.gpe_block) { + return_ACPI_STATUS(AE_NULL_OBJECT); + } + + /* Delete the GPE block (but not the device_object) */ + + status = acpi_ev_delete_gpe_block(obj_desc->device.gpe_block); + if (ACPI_SUCCESS(status)) { + obj_desc->device.gpe_block = NULL; + } + + unlock_and_exit: + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_remove_gpe_block) + +/******************************************************************************* + * + * FUNCTION: acpi_get_gpe_device + * + * PARAMETERS: Index - System GPE index (0-current_gpe_count) + * gpe_device - Where the parent GPE Device is returned + * + * RETURN: Status + * + * DESCRIPTION: Obtain the GPE device associated with the input index. A NULL + * gpe device indicates that the gpe number is contained in one of + * the FADT-defined gpe blocks. Otherwise, the GPE block device. + * + ******************************************************************************/ +acpi_status +acpi_get_gpe_device(u32 index, acpi_handle *gpe_device) +{ + struct acpi_gpe_device_info info; + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_get_gpe_device); + + if (!gpe_device) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + if (index >= acpi_current_gpe_count) { + return_ACPI_STATUS(AE_NOT_EXIST); + } + + /* Setup and walk the GPE list */ + + info.index = index; + info.status = AE_NOT_EXIST; + info.gpe_device = NULL; + info.next_block_base_index = 0; + + status = acpi_ev_walk_gpe_list(acpi_ev_get_gpe_device, &info); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + *gpe_device = info.gpe_device; + return_ACPI_STATUS(info.status); +} + +ACPI_EXPORT_SYMBOL(acpi_get_gpe_device) + +/******************************************************************************* + * + * FUNCTION: acpi_ev_get_gpe_device + * + * PARAMETERS: GPE_WALK_CALLBACK + * + * RETURN: Status + * + * DESCRIPTION: Matches the input GPE index (0-current_gpe_count) with a GPE + * block device. NULL if the GPE is one of the FADT-defined GPEs. + * + ******************************************************************************/ +acpi_status +acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info, + struct acpi_gpe_block_info *gpe_block, void *context) +{ + struct acpi_gpe_device_info *info = context; + + /* Increment Index by the number of GPEs in this block */ + + info->next_block_base_index += + (gpe_block->register_count * ACPI_GPE_REGISTER_WIDTH); + + if (info->index < info->next_block_base_index) { + /* + * The GPE index is within this block, get the node. Leave the node + * NULL for the FADT-defined GPEs + */ + if ((gpe_block->node)->type == ACPI_TYPE_DEVICE) { + info->gpe_device = gpe_block->node; + } + + info->status = AE_OK; + return (AE_CTRL_END); + } + + return (AE_OK); +} + +/****************************************************************************** + * + * FUNCTION: acpi_disable_all_gpes + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Disable and clear all GPEs in all GPE blocks + * + ******************************************************************************/ + +acpi_status acpi_disable_all_gpes(void) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_disable_all_gpes); + + status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + status = acpi_hw_disable_all_gpes(); + (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); + + return_ACPI_STATUS(status); +} + +/****************************************************************************** + * + * FUNCTION: acpi_enable_all_runtime_gpes + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Enable all "runtime" GPEs, in all GPE blocks + * + ******************************************************************************/ + +acpi_status acpi_enable_all_runtime_gpes(void) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_enable_all_runtime_gpes); + + status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + status = acpi_hw_enable_all_runtime_gpes(); + (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); + + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/evxfregn.c b/drivers/acpi/acpica/evxfregn.c new file mode 100644 index 000000000000..b8633947391b --- /dev/null +++ b/drivers/acpi/acpica/evxfregn.c @@ -0,0 +1,254 @@ +/****************************************************************************** + * + * Module Name: evxfregn - External Interfaces, ACPI Operation Regions and + * Address Spaces. + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include + +#define _COMPONENT ACPI_EVENTS +ACPI_MODULE_NAME("evxfregn") + +/******************************************************************************* + * + * FUNCTION: acpi_install_address_space_handler + * + * PARAMETERS: Device - Handle for the device + * space_id - The address space ID + * Handler - Address of the handler + * Setup - Address of the setup function + * Context - Value passed to the handler on each access + * + * RETURN: Status + * + * DESCRIPTION: Install a handler for all op_regions of a given space_id. + * + ******************************************************************************/ +acpi_status +acpi_install_address_space_handler(acpi_handle device, + acpi_adr_space_type space_id, + acpi_adr_space_handler handler, + acpi_adr_space_setup setup, void *context) +{ + struct acpi_namespace_node *node; + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_install_address_space_handler); + + /* Parameter validation */ + + if (!device) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Convert and validate the device handle */ + + node = acpi_ns_map_handle_to_node(device); + if (!node) { + status = AE_BAD_PARAMETER; + goto unlock_and_exit; + } + + /* Install the handler for all Regions for this Space ID */ + + status = + acpi_ev_install_space_handler(node, space_id, handler, setup, + context); + if (ACPI_FAILURE(status)) { + goto unlock_and_exit; + } + + /* Run all _REG methods for this address space */ + + status = acpi_ev_execute_reg_methods(node, space_id); + + unlock_and_exit: + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_install_address_space_handler) + +/******************************************************************************* + * + * FUNCTION: acpi_remove_address_space_handler + * + * PARAMETERS: Device - Handle for the device + * space_id - The address space ID + * Handler - Address of the handler + * + * RETURN: Status + * + * DESCRIPTION: Remove a previously installed handler. + * + ******************************************************************************/ +acpi_status +acpi_remove_address_space_handler(acpi_handle device, + acpi_adr_space_type space_id, + acpi_adr_space_handler handler) +{ + union acpi_operand_object *obj_desc; + union acpi_operand_object *handler_obj; + union acpi_operand_object *region_obj; + union acpi_operand_object **last_obj_ptr; + struct acpi_namespace_node *node; + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_remove_address_space_handler); + + /* Parameter validation */ + + if (!device) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Convert and validate the device handle */ + + node = acpi_ns_map_handle_to_node(device); + if (!node || + ((node->type != ACPI_TYPE_DEVICE) && + (node->type != ACPI_TYPE_PROCESSOR) && + (node->type != ACPI_TYPE_THERMAL) && + (node != acpi_gbl_root_node))) { + status = AE_BAD_PARAMETER; + goto unlock_and_exit; + } + + /* Make sure the internal object exists */ + + obj_desc = acpi_ns_get_attached_object(node); + if (!obj_desc) { + status = AE_NOT_EXIST; + goto unlock_and_exit; + } + + /* Find the address handler the user requested */ + + handler_obj = obj_desc->device.handler; + last_obj_ptr = &obj_desc->device.handler; + while (handler_obj) { + + /* We have a handler, see if user requested this one */ + + if (handler_obj->address_space.space_id == space_id) { + + /* Handler must be the same as the installed handler */ + + if (handler_obj->address_space.handler != handler) { + status = AE_BAD_PARAMETER; + goto unlock_and_exit; + } + + /* Matched space_id, first dereference this in the Regions */ + + ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, + "Removing address handler %p(%p) for region %s on Device %p(%p)\n", + handler_obj, handler, + acpi_ut_get_region_name(space_id), + node, obj_desc)); + + region_obj = handler_obj->address_space.region_list; + + /* Walk the handler's region list */ + + while (region_obj) { + /* + * First disassociate the handler from the region. + * + * NOTE: this doesn't mean that the region goes away + * The region is just inaccessible as indicated to + * the _REG method + */ + acpi_ev_detach_region(region_obj, TRUE); + + /* + * Walk the list: Just grab the head because the + * detach_region removed the previous head. + */ + region_obj = + handler_obj->address_space.region_list; + + } + + /* Remove this Handler object from the list */ + + *last_obj_ptr = handler_obj->address_space.next; + + /* Now we can delete the handler object */ + + acpi_ut_remove_reference(handler_obj); + goto unlock_and_exit; + } + + /* Walk the linked list of handlers */ + + last_obj_ptr = &handler_obj->address_space.next; + handler_obj = handler_obj->address_space.next; + } + + /* The handler does not exist */ + + ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, + "Unable to remove address handler %p for %s(%X), DevNode %p, obj %p\n", + handler, acpi_ut_get_region_name(space_id), space_id, + node, obj_desc)); + + status = AE_NOT_EXIST; + + unlock_and_exit: + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_remove_address_space_handler) diff --git a/drivers/acpi/acpica/exconfig.c b/drivers/acpi/acpica/exconfig.c new file mode 100644 index 000000000000..be32d0105fe2 --- /dev/null +++ b/drivers/acpi/acpica/exconfig.c @@ -0,0 +1,536 @@ +/****************************************************************************** + * + * Module Name: exconfig - Namespace reconfiguration (Load/Unload opcodes) + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_EXECUTER +ACPI_MODULE_NAME("exconfig") + +/* Local prototypes */ +static acpi_status +acpi_ex_add_table(u32 table_index, + struct acpi_namespace_node *parent_node, + union acpi_operand_object **ddb_handle); + +/******************************************************************************* + * + * FUNCTION: acpi_ex_add_table + * + * PARAMETERS: Table - Pointer to raw table + * parent_node - Where to load the table (scope) + * ddb_handle - Where to return the table handle. + * + * RETURN: Status + * + * DESCRIPTION: Common function to Install and Load an ACPI table with a + * returned table handle. + * + ******************************************************************************/ + +static acpi_status +acpi_ex_add_table(u32 table_index, + struct acpi_namespace_node *parent_node, + union acpi_operand_object **ddb_handle) +{ + acpi_status status; + union acpi_operand_object *obj_desc; + + ACPI_FUNCTION_TRACE(ex_add_table); + + /* Create an object to be the table handle */ + + obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_REFERENCE); + if (!obj_desc) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* Init the table handle */ + + obj_desc->reference.class = ACPI_REFCLASS_TABLE; + *ddb_handle = obj_desc; + + /* Install the new table into the local data structures */ + + obj_desc->reference.value = table_index; + + /* Add the table to the namespace */ + + status = acpi_ns_load_table(table_index, parent_node); + if (ACPI_FAILURE(status)) { + acpi_ut_remove_reference(obj_desc); + *ddb_handle = NULL; + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_load_table_op + * + * PARAMETERS: walk_state - Current state with operands + * return_desc - Where to store the return object + * + * RETURN: Status + * + * DESCRIPTION: Load an ACPI table from the RSDT/XSDT + * + ******************************************************************************/ + +acpi_status +acpi_ex_load_table_op(struct acpi_walk_state *walk_state, + union acpi_operand_object **return_desc) +{ + acpi_status status; + union acpi_operand_object **operand = &walk_state->operands[0]; + struct acpi_namespace_node *parent_node; + struct acpi_namespace_node *start_node; + struct acpi_namespace_node *parameter_node = NULL; + union acpi_operand_object *ddb_handle; + struct acpi_table_header *table; + u32 table_index; + + ACPI_FUNCTION_TRACE(ex_load_table_op); + + /* Validate lengths for the signature_string, OEMIDString, OEMtable_iD */ + + if ((operand[0]->string.length > ACPI_NAME_SIZE) || + (operand[1]->string.length > ACPI_OEM_ID_SIZE) || + (operand[2]->string.length > ACPI_OEM_TABLE_ID_SIZE)) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* Find the ACPI table in the RSDT/XSDT */ + + status = acpi_tb_find_table(operand[0]->string.pointer, + operand[1]->string.pointer, + operand[2]->string.pointer, &table_index); + if (ACPI_FAILURE(status)) { + if (status != AE_NOT_FOUND) { + return_ACPI_STATUS(status); + } + + /* Table not found, return an Integer=0 and AE_OK */ + + ddb_handle = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + if (!ddb_handle) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + ddb_handle->integer.value = 0; + *return_desc = ddb_handle; + + return_ACPI_STATUS(AE_OK); + } + + /* Default nodes */ + + start_node = walk_state->scope_info->scope.node; + parent_node = acpi_gbl_root_node; + + /* root_path (optional parameter) */ + + if (operand[3]->string.length > 0) { + /* + * Find the node referenced by the root_path_string. This is the + * location within the namespace where the table will be loaded. + */ + status = + acpi_ns_get_node(start_node, operand[3]->string.pointer, + ACPI_NS_SEARCH_PARENT, &parent_node); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + + /* parameter_path (optional parameter) */ + + if (operand[4]->string.length > 0) { + if ((operand[4]->string.pointer[0] != '\\') && + (operand[4]->string.pointer[0] != '^')) { + /* + * Path is not absolute, so it will be relative to the node + * referenced by the root_path_string (or the NS root if omitted) + */ + start_node = parent_node; + } + + /* Find the node referenced by the parameter_path_string */ + + status = + acpi_ns_get_node(start_node, operand[4]->string.pointer, + ACPI_NS_SEARCH_PARENT, ¶meter_node); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + + /* Load the table into the namespace */ + + status = acpi_ex_add_table(table_index, parent_node, &ddb_handle); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Parameter Data (optional) */ + + if (parameter_node) { + + /* Store the parameter data into the optional parameter object */ + + status = acpi_ex_store(operand[5], + ACPI_CAST_PTR(union acpi_operand_object, + parameter_node), + walk_state); + if (ACPI_FAILURE(status)) { + (void)acpi_ex_unload_table(ddb_handle); + return_ACPI_STATUS(status); + } + } + + status = acpi_get_table_by_index(table_index, &table); + if (ACPI_SUCCESS(status)) { + ACPI_INFO((AE_INFO, + "Dynamic OEM Table Load - [%.4s] OemId [%.6s] OemTableId [%.8s]", + table->signature, table->oem_id, + table->oem_table_id)); + } + + /* Invoke table handler if present */ + + if (acpi_gbl_table_handler) { + (void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_LOAD, table, + acpi_gbl_table_handler_context); + } + + *return_desc = ddb_handle; + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_load_op + * + * PARAMETERS: obj_desc - Region or Buffer/Field where the table will be + * obtained + * Target - Where a handle to the table will be stored + * walk_state - Current state + * + * RETURN: Status + * + * DESCRIPTION: Load an ACPI table from a field or operation region + * + * NOTE: Region Fields (Field, bank_field, index_fields) are resolved to buffer + * objects before this code is reached. + * + * If source is an operation region, it must refer to system_memory, as + * per the ACPI specification. + * + ******************************************************************************/ + +acpi_status +acpi_ex_load_op(union acpi_operand_object *obj_desc, + union acpi_operand_object *target, + struct acpi_walk_state *walk_state) +{ + union acpi_operand_object *ddb_handle; + struct acpi_table_header *table; + struct acpi_table_desc table_desc; + u32 table_index; + acpi_status status; + u32 length; + + ACPI_FUNCTION_TRACE(ex_load_op); + + ACPI_MEMSET(&table_desc, 0, sizeof(struct acpi_table_desc)); + + /* Source Object can be either an op_region or a Buffer/Field */ + + switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { + case ACPI_TYPE_REGION: + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Load table from Region %p\n", obj_desc)); + + /* Region must be system_memory (from ACPI spec) */ + + if (obj_desc->region.space_id != ACPI_ADR_SPACE_SYSTEM_MEMORY) { + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + + /* + * If the Region Address and Length have not been previously evaluated, + * evaluate them now and save the results. + */ + if (!(obj_desc->common.flags & AOPOBJ_DATA_VALID)) { + status = acpi_ds_get_region_arguments(obj_desc); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + + /* + * Map the table header and get the actual table length. The region + * length is not guaranteed to be the same as the table length. + */ + table = acpi_os_map_memory(obj_desc->region.address, + sizeof(struct acpi_table_header)); + if (!table) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + length = table->length; + acpi_os_unmap_memory(table, sizeof(struct acpi_table_header)); + + /* Must have at least an ACPI table header */ + + if (length < sizeof(struct acpi_table_header)) { + return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH); + } + + /* + * The memory region is not guaranteed to remain stable and we must + * copy the table to a local buffer. For example, the memory region + * is corrupted after suspend on some machines. Dynamically loaded + * tables are usually small, so this overhead is minimal. + */ + + /* Allocate a buffer for the table */ + + table_desc.pointer = ACPI_ALLOCATE(length); + if (!table_desc.pointer) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* Map the entire table and copy it */ + + table = acpi_os_map_memory(obj_desc->region.address, length); + if (!table) { + ACPI_FREE(table_desc.pointer); + return_ACPI_STATUS(AE_NO_MEMORY); + } + + ACPI_MEMCPY(table_desc.pointer, table, length); + acpi_os_unmap_memory(table, length); + + table_desc.address = obj_desc->region.address; + break; + + case ACPI_TYPE_BUFFER: /* Buffer or resolved region_field */ + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Load table from Buffer or Field %p\n", + obj_desc)); + + /* Must have at least an ACPI table header */ + + if (obj_desc->buffer.length < sizeof(struct acpi_table_header)) { + return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH); + } + + /* Get the actual table length from the table header */ + + table = + ACPI_CAST_PTR(struct acpi_table_header, + obj_desc->buffer.pointer); + length = table->length; + + /* Table cannot extend beyond the buffer */ + + if (length > obj_desc->buffer.length) { + return_ACPI_STATUS(AE_AML_BUFFER_LIMIT); + } + if (length < sizeof(struct acpi_table_header)) { + return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH); + } + + /* + * Copy the table from the buffer because the buffer could be modified + * or even deleted in the future + */ + table_desc.pointer = ACPI_ALLOCATE(length); + if (!table_desc.pointer) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + ACPI_MEMCPY(table_desc.pointer, table, length); + table_desc.address = ACPI_TO_INTEGER(table_desc.pointer); + break; + + default: + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + + /* Validate table checksum (will not get validated in tb_add_table) */ + + status = acpi_tb_verify_checksum(table_desc.pointer, length); + if (ACPI_FAILURE(status)) { + ACPI_FREE(table_desc.pointer); + return_ACPI_STATUS(status); + } + + /* Complete the table descriptor */ + + table_desc.length = length; + table_desc.flags = ACPI_TABLE_ORIGIN_ALLOCATED; + + /* Install the new table into the local data structures */ + + status = acpi_tb_add_table(&table_desc, &table_index); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + /* + * Add the table to the namespace. + * + * Note: Load the table objects relative to the root of the namespace. + * This appears to go against the ACPI specification, but we do it for + * compatibility with other ACPI implementations. + */ + status = + acpi_ex_add_table(table_index, acpi_gbl_root_node, &ddb_handle); + if (ACPI_FAILURE(status)) { + + /* On error, table_ptr was deallocated above */ + + return_ACPI_STATUS(status); + } + + /* Store the ddb_handle into the Target operand */ + + status = acpi_ex_store(ddb_handle, target, walk_state); + if (ACPI_FAILURE(status)) { + (void)acpi_ex_unload_table(ddb_handle); + + /* table_ptr was deallocated above */ + + acpi_ut_remove_reference(ddb_handle); + return_ACPI_STATUS(status); + } + + /* Invoke table handler if present */ + + if (acpi_gbl_table_handler) { + (void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_LOAD, + table_desc.pointer, + acpi_gbl_table_handler_context); + } + + cleanup: + if (ACPI_FAILURE(status)) { + + /* Delete allocated table buffer */ + + acpi_tb_delete_table(&table_desc); + } + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_unload_table + * + * PARAMETERS: ddb_handle - Handle to a previously loaded table + * + * RETURN: Status + * + * DESCRIPTION: Unload an ACPI table + * + ******************************************************************************/ + +acpi_status acpi_ex_unload_table(union acpi_operand_object *ddb_handle) +{ + acpi_status status = AE_OK; + union acpi_operand_object *table_desc = ddb_handle; + u32 table_index; + struct acpi_table_header *table; + + ACPI_FUNCTION_TRACE(ex_unload_table); + + /* + * Validate the handle + * Although the handle is partially validated in acpi_ex_reconfiguration(), + * when it calls acpi_ex_resolve_operands(), the handle is more completely + * validated here. + */ + if ((!ddb_handle) || + (ACPI_GET_DESCRIPTOR_TYPE(ddb_handle) != ACPI_DESC_TYPE_OPERAND) || + (ACPI_GET_OBJECT_TYPE(ddb_handle) != ACPI_TYPE_LOCAL_REFERENCE)) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* Get the table index from the ddb_handle */ + + table_index = table_desc->reference.value; + + /* Invoke table handler if present */ + + if (acpi_gbl_table_handler) { + status = acpi_get_table_by_index(table_index, &table); + if (ACPI_SUCCESS(status)) { + (void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_UNLOAD, + table, + acpi_gbl_table_handler_context); + } + } + + /* + * Delete the entire namespace under this table Node + * (Offset contains the table_id) + */ + acpi_tb_delete_namespace_by_owner(table_index); + (void)acpi_tb_release_owner_id(table_index); + + acpi_tb_set_table_loaded_flag(table_index, FALSE); + + /* Table unloaded, remove a reference to the ddb_handle object */ + + acpi_ut_remove_reference(ddb_handle); + return_ACPI_STATUS(AE_OK); +} diff --git a/drivers/acpi/acpica/exconvrt.c b/drivers/acpi/acpica/exconvrt.c new file mode 100644 index 000000000000..caeead439e8c --- /dev/null +++ b/drivers/acpi/acpica/exconvrt.c @@ -0,0 +1,692 @@ +/****************************************************************************** + * + * Module Name: exconvrt - Object conversion routines + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include + +#define _COMPONENT ACPI_EXECUTER +ACPI_MODULE_NAME("exconvrt") + +/* Local prototypes */ +static u32 +acpi_ex_convert_to_ascii(acpi_integer integer, + u16 base, u8 * string, u8 max_length); + +/******************************************************************************* + * + * FUNCTION: acpi_ex_convert_to_integer + * + * PARAMETERS: obj_desc - Object to be converted. Must be an + * Integer, Buffer, or String + * result_desc - Where the new Integer object is returned + * Flags - Used for string conversion + * + * RETURN: Status + * + * DESCRIPTION: Convert an ACPI Object to an integer. + * + ******************************************************************************/ + +acpi_status +acpi_ex_convert_to_integer(union acpi_operand_object *obj_desc, + union acpi_operand_object **result_desc, u32 flags) +{ + union acpi_operand_object *return_desc; + u8 *pointer; + acpi_integer result; + u32 i; + u32 count; + acpi_status status; + + ACPI_FUNCTION_TRACE_PTR(ex_convert_to_integer, obj_desc); + + switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { + case ACPI_TYPE_INTEGER: + + /* No conversion necessary */ + + *result_desc = obj_desc; + return_ACPI_STATUS(AE_OK); + + case ACPI_TYPE_BUFFER: + case ACPI_TYPE_STRING: + + /* Note: Takes advantage of common buffer/string fields */ + + pointer = obj_desc->buffer.pointer; + count = obj_desc->buffer.length; + break; + + default: + return_ACPI_STATUS(AE_TYPE); + } + + /* + * Convert the buffer/string to an integer. Note that both buffers and + * strings are treated as raw data - we don't convert ascii to hex for + * strings. + * + * There are two terminating conditions for the loop: + * 1) The size of an integer has been reached, or + * 2) The end of the buffer or string has been reached + */ + result = 0; + + /* String conversion is different than Buffer conversion */ + + switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { + case ACPI_TYPE_STRING: + + /* + * Convert string to an integer - for most cases, the string must be + * hexadecimal as per the ACPI specification. The only exception (as + * of ACPI 3.0) is that the to_integer() operator allows both decimal + * and hexadecimal strings (hex prefixed with "0x"). + */ + status = acpi_ut_strtoul64((char *)pointer, flags, &result); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + break; + + case ACPI_TYPE_BUFFER: + + /* Check for zero-length buffer */ + + if (!count) { + return_ACPI_STATUS(AE_AML_BUFFER_LIMIT); + } + + /* Transfer no more than an integer's worth of data */ + + if (count > acpi_gbl_integer_byte_width) { + count = acpi_gbl_integer_byte_width; + } + + /* + * Convert buffer to an integer - we simply grab enough raw data + * from the buffer to fill an integer + */ + for (i = 0; i < count; i++) { + /* + * Get next byte and shift it into the Result. + * Little endian is used, meaning that the first byte of the buffer + * is the LSB of the integer + */ + result |= (((acpi_integer) pointer[i]) << (i * 8)); + } + break; + + default: + + /* No other types can get here */ + break; + } + + /* Create a new integer */ + + return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + if (!return_desc) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Converted value: %8.8X%8.8X\n", + ACPI_FORMAT_UINT64(result))); + + /* Save the Result */ + + return_desc->integer.value = result; + acpi_ex_truncate_for32bit_table(return_desc); + *result_desc = return_desc; + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_convert_to_buffer + * + * PARAMETERS: obj_desc - Object to be converted. Must be an + * Integer, Buffer, or String + * result_desc - Where the new buffer object is returned + * + * RETURN: Status + * + * DESCRIPTION: Convert an ACPI Object to a Buffer + * + ******************************************************************************/ + +acpi_status +acpi_ex_convert_to_buffer(union acpi_operand_object *obj_desc, + union acpi_operand_object **result_desc) +{ + union acpi_operand_object *return_desc; + u8 *new_buf; + + ACPI_FUNCTION_TRACE_PTR(ex_convert_to_buffer, obj_desc); + + switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { + case ACPI_TYPE_BUFFER: + + /* No conversion necessary */ + + *result_desc = obj_desc; + return_ACPI_STATUS(AE_OK); + + case ACPI_TYPE_INTEGER: + + /* + * Create a new Buffer object. + * Need enough space for one integer + */ + return_desc = + acpi_ut_create_buffer_object(acpi_gbl_integer_byte_width); + if (!return_desc) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* Copy the integer to the buffer, LSB first */ + + new_buf = return_desc->buffer.pointer; + ACPI_MEMCPY(new_buf, + &obj_desc->integer.value, + acpi_gbl_integer_byte_width); + break; + + case ACPI_TYPE_STRING: + + /* + * Create a new Buffer object + * Size will be the string length + * + * NOTE: Add one to the string length to include the null terminator. + * The ACPI spec is unclear on this subject, but there is existing + * ASL/AML code that depends on the null being transferred to the new + * buffer. + */ + return_desc = acpi_ut_create_buffer_object((acpi_size) + obj_desc->string. + length + 1); + if (!return_desc) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* Copy the string to the buffer */ + + new_buf = return_desc->buffer.pointer; + ACPI_STRNCPY((char *)new_buf, (char *)obj_desc->string.pointer, + obj_desc->string.length); + break; + + default: + return_ACPI_STATUS(AE_TYPE); + } + + /* Mark buffer initialized */ + + return_desc->common.flags |= AOPOBJ_DATA_VALID; + *result_desc = return_desc; + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_convert_to_ascii + * + * PARAMETERS: Integer - Value to be converted + * Base - ACPI_STRING_DECIMAL or ACPI_STRING_HEX + * String - Where the string is returned + * data_width - Size of data item to be converted, in bytes + * + * RETURN: Actual string length + * + * DESCRIPTION: Convert an ACPI Integer to a hex or decimal string + * + ******************************************************************************/ + +static u32 +acpi_ex_convert_to_ascii(acpi_integer integer, + u16 base, u8 * string, u8 data_width) +{ + acpi_integer digit; + u32 i; + u32 j; + u32 k = 0; + u32 hex_length; + u32 decimal_length; + u32 remainder; + u8 supress_zeros; + + ACPI_FUNCTION_ENTRY(); + + switch (base) { + case 10: + + /* Setup max length for the decimal number */ + + switch (data_width) { + case 1: + decimal_length = ACPI_MAX8_DECIMAL_DIGITS; + break; + + case 4: + decimal_length = ACPI_MAX32_DECIMAL_DIGITS; + break; + + case 8: + default: + decimal_length = ACPI_MAX64_DECIMAL_DIGITS; + break; + } + + supress_zeros = TRUE; /* No leading zeros */ + remainder = 0; + + for (i = decimal_length; i > 0; i--) { + + /* Divide by nth factor of 10 */ + + digit = integer; + for (j = 0; j < i; j++) { + (void)acpi_ut_short_divide(digit, 10, &digit, + &remainder); + } + + /* Handle leading zeros */ + + if (remainder != 0) { + supress_zeros = FALSE; + } + + if (!supress_zeros) { + string[k] = (u8) (ACPI_ASCII_ZERO + remainder); + k++; + } + } + break; + + case 16: + + /* hex_length: 2 ascii hex chars per data byte */ + + hex_length = ACPI_MUL_2(data_width); + for (i = 0, j = (hex_length - 1); i < hex_length; i++, j--) { + + /* Get one hex digit, most significant digits first */ + + string[k] = + (u8) acpi_ut_hex_to_ascii_char(integer, + ACPI_MUL_4(j)); + k++; + } + break; + + default: + return (0); + } + + /* + * Since leading zeros are suppressed, we must check for the case where + * the integer equals 0 + * + * Finally, null terminate the string and return the length + */ + if (!k) { + string[0] = ACPI_ASCII_ZERO; + k = 1; + } + + string[k] = 0; + return ((u32) k); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_convert_to_string + * + * PARAMETERS: obj_desc - Object to be converted. Must be an + * Integer, Buffer, or String + * result_desc - Where the string object is returned + * Type - String flags (base and conversion type) + * + * RETURN: Status + * + * DESCRIPTION: Convert an ACPI Object to a string + * + ******************************************************************************/ + +acpi_status +acpi_ex_convert_to_string(union acpi_operand_object * obj_desc, + union acpi_operand_object ** result_desc, u32 type) +{ + union acpi_operand_object *return_desc; + u8 *new_buf; + u32 i; + u32 string_length = 0; + u16 base = 16; + u8 separator = ','; + + ACPI_FUNCTION_TRACE_PTR(ex_convert_to_string, obj_desc); + + switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { + case ACPI_TYPE_STRING: + + /* No conversion necessary */ + + *result_desc = obj_desc; + return_ACPI_STATUS(AE_OK); + + case ACPI_TYPE_INTEGER: + + switch (type) { + case ACPI_EXPLICIT_CONVERT_DECIMAL: + + /* Make room for maximum decimal number */ + + string_length = ACPI_MAX_DECIMAL_DIGITS; + base = 10; + break; + + default: + + /* Two hex string characters for each integer byte */ + + string_length = ACPI_MUL_2(acpi_gbl_integer_byte_width); + break; + } + + /* + * Create a new String + * Need enough space for one ASCII integer (plus null terminator) + */ + return_desc = + acpi_ut_create_string_object((acpi_size) string_length); + if (!return_desc) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + new_buf = return_desc->buffer.pointer; + + /* Convert integer to string */ + + string_length = + acpi_ex_convert_to_ascii(obj_desc->integer.value, base, + new_buf, + acpi_gbl_integer_byte_width); + + /* Null terminate at the correct place */ + + return_desc->string.length = string_length; + new_buf[string_length] = 0; + break; + + case ACPI_TYPE_BUFFER: + + /* Setup string length, base, and separator */ + + switch (type) { + case ACPI_EXPLICIT_CONVERT_DECIMAL: /* Used by to_decimal_string */ + /* + * From ACPI: "If Data is a buffer, it is converted to a string of + * decimal values separated by commas." + */ + base = 10; + + /* + * Calculate the final string length. Individual string values + * are variable length (include separator for each) + */ + for (i = 0; i < obj_desc->buffer.length; i++) { + if (obj_desc->buffer.pointer[i] >= 100) { + string_length += 4; + } else if (obj_desc->buffer.pointer[i] >= 10) { + string_length += 3; + } else { + string_length += 2; + } + } + break; + + case ACPI_IMPLICIT_CONVERT_HEX: + /* + * From the ACPI spec: + *"The entire contents of the buffer are converted to a string of + * two-character hexadecimal numbers, each separated by a space." + */ + separator = ' '; + string_length = (obj_desc->buffer.length * 3); + break; + + case ACPI_EXPLICIT_CONVERT_HEX: /* Used by to_hex_string */ + /* + * From ACPI: "If Data is a buffer, it is converted to a string of + * hexadecimal values separated by commas." + */ + string_length = (obj_desc->buffer.length * 3); + break; + + default: + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* + * Create a new string object and string buffer + * (-1 because of extra separator included in string_length from above) + * Allow creation of zero-length strings from zero-length buffers. + */ + if (string_length) { + string_length--; + } + + return_desc = acpi_ut_create_string_object((acpi_size) + string_length); + if (!return_desc) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + new_buf = return_desc->buffer.pointer; + + /* + * Convert buffer bytes to hex or decimal values + * (separated by commas or spaces) + */ + for (i = 0; i < obj_desc->buffer.length; i++) { + new_buf += acpi_ex_convert_to_ascii((acpi_integer) + obj_desc->buffer. + pointer[i], base, + new_buf, 1); + *new_buf++ = separator; /* each separated by a comma or space */ + } + + /* + * Null terminate the string + * (overwrites final comma/space from above) + */ + if (obj_desc->buffer.length) { + new_buf--; + } + *new_buf = 0; + break; + + default: + return_ACPI_STATUS(AE_TYPE); + } + + *result_desc = return_desc; + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_convert_to_target_type + * + * PARAMETERS: destination_type - Current type of the destination + * source_desc - Source object to be converted. + * result_desc - Where the converted object is returned + * walk_state - Current method state + * + * RETURN: Status + * + * DESCRIPTION: Implements "implicit conversion" rules for storing an object. + * + ******************************************************************************/ + +acpi_status +acpi_ex_convert_to_target_type(acpi_object_type destination_type, + union acpi_operand_object *source_desc, + union acpi_operand_object **result_desc, + struct acpi_walk_state *walk_state) +{ + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE(ex_convert_to_target_type); + + /* Default behavior */ + + *result_desc = source_desc; + + /* + * If required by the target, + * perform implicit conversion on the source before we store it. + */ + switch (GET_CURRENT_ARG_TYPE(walk_state->op_info->runtime_args)) { + case ARGI_SIMPLE_TARGET: + case ARGI_FIXED_TARGET: + case ARGI_INTEGER_REF: /* Handles Increment, Decrement cases */ + + switch (destination_type) { + case ACPI_TYPE_LOCAL_REGION_FIELD: + /* + * Named field can always handle conversions + */ + break; + + default: + /* No conversion allowed for these types */ + + if (destination_type != + ACPI_GET_OBJECT_TYPE(source_desc)) { + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Explicit operator, will store (%s) over existing type (%s)\n", + acpi_ut_get_object_type_name + (source_desc), + acpi_ut_get_type_name + (destination_type))); + status = AE_TYPE; + } + } + break; + + case ARGI_TARGETREF: + + switch (destination_type) { + case ACPI_TYPE_INTEGER: + case ACPI_TYPE_BUFFER_FIELD: + case ACPI_TYPE_LOCAL_BANK_FIELD: + case ACPI_TYPE_LOCAL_INDEX_FIELD: + /* + * These types require an Integer operand. We can convert + * a Buffer or a String to an Integer if necessary. + */ + status = + acpi_ex_convert_to_integer(source_desc, result_desc, + 16); + break; + + case ACPI_TYPE_STRING: + /* + * The operand must be a String. We can convert an + * Integer or Buffer if necessary + */ + status = + acpi_ex_convert_to_string(source_desc, result_desc, + ACPI_IMPLICIT_CONVERT_HEX); + break; + + case ACPI_TYPE_BUFFER: + /* + * The operand must be a Buffer. We can convert an + * Integer or String if necessary + */ + status = + acpi_ex_convert_to_buffer(source_desc, result_desc); + break; + + default: + ACPI_ERROR((AE_INFO, + "Bad destination type during conversion: %X", + destination_type)); + status = AE_AML_INTERNAL; + break; + } + break; + + case ARGI_REFERENCE: + /* + * create_xxxx_field cases - we are storing the field object into the name + */ + break; + + default: + ACPI_ERROR((AE_INFO, + "Unknown Target type ID 0x%X AmlOpcode %X DestType %s", + GET_CURRENT_ARG_TYPE(walk_state->op_info-> + runtime_args), + walk_state->opcode, + acpi_ut_get_type_name(destination_type))); + status = AE_AML_INTERNAL; + } + + /* + * Source-to-Target conversion semantics: + * + * If conversion to the target type cannot be performed, then simply + * overwrite the target with the new object and type. + */ + if (status == AE_TYPE) { + status = AE_OK; + } + + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/excreate.c b/drivers/acpi/acpica/excreate.c new file mode 100644 index 000000000000..5aa65a214fc2 --- /dev/null +++ b/drivers/acpi/acpica/excreate.c @@ -0,0 +1,522 @@ +/****************************************************************************** + * + * Module Name: excreate - Named object creation + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_EXECUTER +ACPI_MODULE_NAME("excreate") +#ifndef ACPI_NO_METHOD_EXECUTION +/******************************************************************************* + * + * FUNCTION: acpi_ex_create_alias + * + * PARAMETERS: walk_state - Current state, contains operands + * + * RETURN: Status + * + * DESCRIPTION: Create a new named alias + * + ******************************************************************************/ +acpi_status acpi_ex_create_alias(struct acpi_walk_state *walk_state) +{ + struct acpi_namespace_node *target_node; + struct acpi_namespace_node *alias_node; + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE(ex_create_alias); + + /* Get the source/alias operands (both namespace nodes) */ + + alias_node = (struct acpi_namespace_node *)walk_state->operands[0]; + target_node = (struct acpi_namespace_node *)walk_state->operands[1]; + + if ((target_node->type == ACPI_TYPE_LOCAL_ALIAS) || + (target_node->type == ACPI_TYPE_LOCAL_METHOD_ALIAS)) { + /* + * Dereference an existing alias so that we don't create a chain + * of aliases. With this code, we guarantee that an alias is + * always exactly one level of indirection away from the + * actual aliased name. + */ + target_node = + ACPI_CAST_PTR(struct acpi_namespace_node, + target_node->object); + } + + /* + * For objects that can never change (i.e., the NS node will + * permanently point to the same object), we can simply attach + * the object to the new NS node. For other objects (such as + * Integers, buffers, etc.), we have to point the Alias node + * to the original Node. + */ + switch (target_node->type) { + + /* For these types, the sub-object can change dynamically via a Store */ + + case ACPI_TYPE_INTEGER: + case ACPI_TYPE_STRING: + case ACPI_TYPE_BUFFER: + case ACPI_TYPE_PACKAGE: + case ACPI_TYPE_BUFFER_FIELD: + + /* + * These types open a new scope, so we need the NS node in order to access + * any children. + */ + case ACPI_TYPE_DEVICE: + case ACPI_TYPE_POWER: + case ACPI_TYPE_PROCESSOR: + case ACPI_TYPE_THERMAL: + case ACPI_TYPE_LOCAL_SCOPE: + + /* + * The new alias has the type ALIAS and points to the original + * NS node, not the object itself. + */ + alias_node->type = ACPI_TYPE_LOCAL_ALIAS; + alias_node->object = + ACPI_CAST_PTR(union acpi_operand_object, target_node); + break; + + case ACPI_TYPE_METHOD: + + /* + * Control method aliases need to be differentiated + */ + alias_node->type = ACPI_TYPE_LOCAL_METHOD_ALIAS; + alias_node->object = + ACPI_CAST_PTR(union acpi_operand_object, target_node); + break; + + default: + + /* Attach the original source object to the new Alias Node */ + + /* + * The new alias assumes the type of the target, and it points + * to the same object. The reference count of the object has an + * additional reference to prevent deletion out from under either the + * target node or the alias Node + */ + status = acpi_ns_attach_object(alias_node, + acpi_ns_get_attached_object + (target_node), + target_node->type); + break; + } + + /* Since both operands are Nodes, we don't need to delete them */ + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_create_event + * + * PARAMETERS: walk_state - Current state + * + * RETURN: Status + * + * DESCRIPTION: Create a new event object + * + ******************************************************************************/ + +acpi_status acpi_ex_create_event(struct acpi_walk_state *walk_state) +{ + acpi_status status; + union acpi_operand_object *obj_desc; + + ACPI_FUNCTION_TRACE(ex_create_event); + + obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_EVENT); + if (!obj_desc) { + status = AE_NO_MEMORY; + goto cleanup; + } + + /* + * Create the actual OS semaphore, with zero initial units -- meaning + * that the event is created in an unsignalled state + */ + status = acpi_os_create_semaphore(ACPI_NO_UNIT_LIMIT, 0, + &obj_desc->event.os_semaphore); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + /* Attach object to the Node */ + + status = + acpi_ns_attach_object((struct acpi_namespace_node *)walk_state-> + operands[0], obj_desc, ACPI_TYPE_EVENT); + + cleanup: + /* + * Remove local reference to the object (on error, will cause deletion + * of both object and semaphore if present.) + */ + acpi_ut_remove_reference(obj_desc); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_create_mutex + * + * PARAMETERS: walk_state - Current state + * + * RETURN: Status + * + * DESCRIPTION: Create a new mutex object + * + * Mutex (Name[0], sync_level[1]) + * + ******************************************************************************/ + +acpi_status acpi_ex_create_mutex(struct acpi_walk_state *walk_state) +{ + acpi_status status = AE_OK; + union acpi_operand_object *obj_desc; + + ACPI_FUNCTION_TRACE_PTR(ex_create_mutex, ACPI_WALK_OPERANDS); + + /* Create the new mutex object */ + + obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_MUTEX); + if (!obj_desc) { + status = AE_NO_MEMORY; + goto cleanup; + } + + /* Create the actual OS Mutex */ + + status = acpi_os_create_mutex(&obj_desc->mutex.os_mutex); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + /* Init object and attach to NS node */ + + obj_desc->mutex.sync_level = + (u8) walk_state->operands[1]->integer.value; + obj_desc->mutex.node = + (struct acpi_namespace_node *)walk_state->operands[0]; + + status = + acpi_ns_attach_object(obj_desc->mutex.node, obj_desc, + ACPI_TYPE_MUTEX); + + cleanup: + /* + * Remove local reference to the object (on error, will cause deletion + * of both object and semaphore if present.) + */ + acpi_ut_remove_reference(obj_desc); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_create_region + * + * PARAMETERS: aml_start - Pointer to the region declaration AML + * aml_length - Max length of the declaration AML + * region_space - space_iD for the region + * walk_state - Current state + * + * RETURN: Status + * + * DESCRIPTION: Create a new operation region object + * + ******************************************************************************/ + +acpi_status +acpi_ex_create_region(u8 * aml_start, + u32 aml_length, + u8 region_space, struct acpi_walk_state *walk_state) +{ + acpi_status status; + union acpi_operand_object *obj_desc; + struct acpi_namespace_node *node; + union acpi_operand_object *region_obj2; + + ACPI_FUNCTION_TRACE(ex_create_region); + + /* Get the Namespace Node */ + + node = walk_state->op->common.node; + + /* + * If the region object is already attached to this node, + * just return + */ + if (acpi_ns_get_attached_object(node)) { + return_ACPI_STATUS(AE_OK); + } + + /* + * Space ID must be one of the predefined IDs, or in the user-defined + * range + */ + if ((region_space >= ACPI_NUM_PREDEFINED_REGIONS) && + (region_space < ACPI_USER_REGION_BEGIN)) { + ACPI_ERROR((AE_INFO, "Invalid AddressSpace type %X", + region_space)); + return_ACPI_STATUS(AE_AML_INVALID_SPACE_ID); + } + + ACPI_DEBUG_PRINT((ACPI_DB_LOAD, "Region Type - %s (%X)\n", + acpi_ut_get_region_name(region_space), region_space)); + + /* Create the region descriptor */ + + obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_REGION); + if (!obj_desc) { + status = AE_NO_MEMORY; + goto cleanup; + } + + /* + * Remember location in AML stream of address & length + * operands since they need to be evaluated at run time. + */ + region_obj2 = obj_desc->common.next_object; + region_obj2->extra.aml_start = aml_start; + region_obj2->extra.aml_length = aml_length; + + /* Init the region from the operands */ + + obj_desc->region.space_id = region_space; + obj_desc->region.address = 0; + obj_desc->region.length = 0; + obj_desc->region.node = node; + + /* Install the new region object in the parent Node */ + + status = acpi_ns_attach_object(node, obj_desc, ACPI_TYPE_REGION); + + cleanup: + + /* Remove local reference to the object */ + + acpi_ut_remove_reference(obj_desc); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_create_processor + * + * PARAMETERS: walk_state - Current state + * + * RETURN: Status + * + * DESCRIPTION: Create a new processor object and populate the fields + * + * Processor (Name[0], cpu_iD[1], pblock_addr[2], pblock_length[3]) + * + ******************************************************************************/ + +acpi_status acpi_ex_create_processor(struct acpi_walk_state *walk_state) +{ + union acpi_operand_object **operand = &walk_state->operands[0]; + union acpi_operand_object *obj_desc; + acpi_status status; + + ACPI_FUNCTION_TRACE_PTR(ex_create_processor, walk_state); + + /* Create the processor object */ + + obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_PROCESSOR); + if (!obj_desc) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* Initialize the processor object from the operands */ + + obj_desc->processor.proc_id = (u8) operand[1]->integer.value; + obj_desc->processor.length = (u8) operand[3]->integer.value; + obj_desc->processor.address = + (acpi_io_address) operand[2]->integer.value; + + /* Install the processor object in the parent Node */ + + status = acpi_ns_attach_object((struct acpi_namespace_node *)operand[0], + obj_desc, ACPI_TYPE_PROCESSOR); + + /* Remove local reference to the object */ + + acpi_ut_remove_reference(obj_desc); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_create_power_resource + * + * PARAMETERS: walk_state - Current state + * + * RETURN: Status + * + * DESCRIPTION: Create a new power_resource object and populate the fields + * + * power_resource (Name[0], system_level[1], resource_order[2]) + * + ******************************************************************************/ + +acpi_status acpi_ex_create_power_resource(struct acpi_walk_state *walk_state) +{ + union acpi_operand_object **operand = &walk_state->operands[0]; + acpi_status status; + union acpi_operand_object *obj_desc; + + ACPI_FUNCTION_TRACE_PTR(ex_create_power_resource, walk_state); + + /* Create the power resource object */ + + obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_POWER); + if (!obj_desc) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* Initialize the power object from the operands */ + + obj_desc->power_resource.system_level = (u8) operand[1]->integer.value; + obj_desc->power_resource.resource_order = + (u16) operand[2]->integer.value; + + /* Install the power resource object in the parent Node */ + + status = acpi_ns_attach_object((struct acpi_namespace_node *)operand[0], + obj_desc, ACPI_TYPE_POWER); + + /* Remove local reference to the object */ + + acpi_ut_remove_reference(obj_desc); + return_ACPI_STATUS(status); +} +#endif + +/******************************************************************************* + * + * FUNCTION: acpi_ex_create_method + * + * PARAMETERS: aml_start - First byte of the method's AML + * aml_length - AML byte count for this method + * walk_state - Current state + * + * RETURN: Status + * + * DESCRIPTION: Create a new method object + * + ******************************************************************************/ + +acpi_status +acpi_ex_create_method(u8 * aml_start, + u32 aml_length, struct acpi_walk_state *walk_state) +{ + union acpi_operand_object **operand = &walk_state->operands[0]; + union acpi_operand_object *obj_desc; + acpi_status status; + u8 method_flags; + + ACPI_FUNCTION_TRACE_PTR(ex_create_method, walk_state); + + /* Create a new method object */ + + obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_METHOD); + if (!obj_desc) { + status = AE_NO_MEMORY; + goto exit; + } + + /* Save the method's AML pointer and length */ + + obj_desc->method.aml_start = aml_start; + obj_desc->method.aml_length = aml_length; + + /* + * Disassemble the method flags. Split off the Arg Count + * for efficiency + */ + method_flags = (u8) operand[1]->integer.value; + + obj_desc->method.method_flags = + (u8) (method_flags & ~AML_METHOD_ARG_COUNT); + obj_desc->method.param_count = + (u8) (method_flags & AML_METHOD_ARG_COUNT); + + /* + * Get the sync_level. If method is serialized, a mutex will be + * created for this method when it is parsed. + */ + if (method_flags & AML_METHOD_SERIALIZED) { + /* + * ACPI 1.0: sync_level = 0 + * ACPI 2.0: sync_level = sync_level in method declaration + */ + obj_desc->method.sync_level = (u8) + ((method_flags & AML_METHOD_SYNCH_LEVEL) >> 4); + } + + /* Attach the new object to the method Node */ + + status = acpi_ns_attach_object((struct acpi_namespace_node *)operand[0], + obj_desc, ACPI_TYPE_METHOD); + + /* Remove local reference to the object */ + + acpi_ut_remove_reference(obj_desc); + + exit: + /* Remove a reference to the operand */ + + acpi_ut_remove_reference(operand[1]); + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/exdump.c b/drivers/acpi/acpica/exdump.c new file mode 100644 index 000000000000..8241b9eff6c1 --- /dev/null +++ b/drivers/acpi/acpica/exdump.c @@ -0,0 +1,1060 @@ +/****************************************************************************** + * + * Module Name: exdump - Interpreter debug output routines + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_EXECUTER +ACPI_MODULE_NAME("exdump") + +/* + * The following routines are used for debug output only + */ +#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) +/* Local prototypes */ +static void acpi_ex_out_string(char *title, char *value); + +static void acpi_ex_out_pointer(char *title, void *value); + +static void +acpi_ex_dump_object(union acpi_operand_object *obj_desc, + struct acpi_exdump_info *info); + +static void acpi_ex_dump_reference_obj(union acpi_operand_object *obj_desc); + +static void +acpi_ex_dump_package_obj(union acpi_operand_object *obj_desc, + u32 level, u32 index); + +/******************************************************************************* + * + * Object Descriptor info tables + * + * Note: The first table entry must be an INIT opcode and must contain + * the table length (number of table entries) + * + ******************************************************************************/ + +static struct acpi_exdump_info acpi_ex_dump_integer[2] = { + {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_integer), NULL}, + {ACPI_EXD_UINT64, ACPI_EXD_OFFSET(integer.value), "Value"} +}; + +static struct acpi_exdump_info acpi_ex_dump_string[4] = { + {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_string), NULL}, + {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(string.length), "Length"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(string.pointer), "Pointer"}, + {ACPI_EXD_STRING, 0, NULL} +}; + +static struct acpi_exdump_info acpi_ex_dump_buffer[5] = { + {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_buffer), NULL}, + {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(buffer.length), "Length"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(buffer.pointer), "Pointer"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(buffer.node), "Parent Node"}, + {ACPI_EXD_BUFFER, 0, NULL} +}; + +static struct acpi_exdump_info acpi_ex_dump_package[5] = { + {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_package), NULL}, + {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(package.flags), "Flags"}, + {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(package.count), "Elements"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(package.elements), "Element List"}, + {ACPI_EXD_PACKAGE, 0, NULL} +}; + +static struct acpi_exdump_info acpi_ex_dump_device[4] = { + {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_device), NULL}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(device.handler), "Handler"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(device.system_notify), + "System Notify"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(device.device_notify), + "Device Notify"} +}; + +static struct acpi_exdump_info acpi_ex_dump_event[2] = { + {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_event), NULL}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(event.os_semaphore), "OsSemaphore"} +}; + +static struct acpi_exdump_info acpi_ex_dump_method[8] = { + {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_method), NULL}, + {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.param_count), "ParamCount"}, + {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.sync_level), "Sync Level"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(method.mutex), "Mutex"}, + {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.owner_id), "Owner Id"}, + {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.thread_count), "Thread Count"}, + {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(method.aml_length), "Aml Length"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(method.aml_start), "Aml Start"} +}; + +static struct acpi_exdump_info acpi_ex_dump_mutex[5] = { + {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_mutex), NULL}, + {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(mutex.sync_level), "Sync Level"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(mutex.owner_thread), "Owner Thread"}, + {ACPI_EXD_UINT16, ACPI_EXD_OFFSET(mutex.acquisition_depth), + "Acquire Depth"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(mutex.os_mutex), "OsMutex"} +}; + +static struct acpi_exdump_info acpi_ex_dump_region[7] = { + {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_region), NULL}, + {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(region.space_id), "Space Id"}, + {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(region.flags), "Flags"}, + {ACPI_EXD_ADDRESS, ACPI_EXD_OFFSET(region.address), "Address"}, + {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(region.length), "Length"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(region.handler), "Handler"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(region.next), "Next"} +}; + +static struct acpi_exdump_info acpi_ex_dump_power[5] = { + {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_power), NULL}, + {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(power_resource.system_level), + "System Level"}, + {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(power_resource.resource_order), + "Resource Order"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(power_resource.system_notify), + "System Notify"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(power_resource.device_notify), + "Device Notify"} +}; + +static struct acpi_exdump_info acpi_ex_dump_processor[7] = { + {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_processor), NULL}, + {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(processor.proc_id), "Processor ID"}, + {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(processor.length), "Length"}, + {ACPI_EXD_ADDRESS, ACPI_EXD_OFFSET(processor.address), "Address"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(processor.system_notify), + "System Notify"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(processor.device_notify), + "Device Notify"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(processor.handler), "Handler"} +}; + +static struct acpi_exdump_info acpi_ex_dump_thermal[4] = { + {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_thermal), NULL}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(thermal_zone.system_notify), + "System Notify"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(thermal_zone.device_notify), + "Device Notify"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(thermal_zone.handler), "Handler"} +}; + +static struct acpi_exdump_info acpi_ex_dump_buffer_field[3] = { + {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_buffer_field), NULL}, + {ACPI_EXD_FIELD, 0, NULL}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(buffer_field.buffer_obj), + "Buffer Object"} +}; + +static struct acpi_exdump_info acpi_ex_dump_region_field[3] = { + {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_region_field), NULL}, + {ACPI_EXD_FIELD, 0, NULL}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(field.region_obj), "Region Object"} +}; + +static struct acpi_exdump_info acpi_ex_dump_bank_field[5] = { + {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_bank_field), NULL}, + {ACPI_EXD_FIELD, 0, NULL}, + {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(bank_field.value), "Value"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(bank_field.region_obj), + "Region Object"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(bank_field.bank_obj), "Bank Object"} +}; + +static struct acpi_exdump_info acpi_ex_dump_index_field[5] = { + {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_bank_field), NULL}, + {ACPI_EXD_FIELD, 0, NULL}, + {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(index_field.value), "Value"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(index_field.index_obj), + "Index Object"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(index_field.data_obj), "Data Object"} +}; + +static struct acpi_exdump_info acpi_ex_dump_reference[8] = { + {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_reference), NULL}, + {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(reference.class), "Class"}, + {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(reference.target_type), "Target Type"}, + {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(reference.value), "Value"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(reference.object), "Object Desc"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(reference.node), "Node"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(reference.where), "Where"}, + {ACPI_EXD_REFERENCE, 0, NULL} +}; + +static struct acpi_exdump_info acpi_ex_dump_address_handler[6] = { + {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_address_handler), + NULL}, + {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(address_space.space_id), "Space Id"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(address_space.next), "Next"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(address_space.region_list), + "Region List"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(address_space.node), "Node"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(address_space.context), "Context"} +}; + +static struct acpi_exdump_info acpi_ex_dump_notify[3] = { + {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_notify), NULL}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(notify.node), "Node"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(notify.context), "Context"} +}; + +/* Miscellaneous tables */ + +static struct acpi_exdump_info acpi_ex_dump_common[4] = { + {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_common), NULL}, + {ACPI_EXD_TYPE, 0, NULL}, + {ACPI_EXD_UINT16, ACPI_EXD_OFFSET(common.reference_count), + "Reference Count"}, + {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(common.flags), "Flags"} +}; + +static struct acpi_exdump_info acpi_ex_dump_field_common[7] = { + {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_field_common), NULL}, + {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(common_field.field_flags), + "Field Flags"}, + {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(common_field.access_byte_width), + "Access Byte Width"}, + {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(common_field.bit_length), + "Bit Length"}, + {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(common_field.start_field_bit_offset), + "Field Bit Offset"}, + {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(common_field.base_byte_offset), + "Base Byte Offset"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(common_field.node), "Parent Node"} +}; + +static struct acpi_exdump_info acpi_ex_dump_node[5] = { + {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_node), NULL}, + {ACPI_EXD_UINT8, ACPI_EXD_NSOFFSET(flags), "Flags"}, + {ACPI_EXD_UINT8, ACPI_EXD_NSOFFSET(owner_id), "Owner Id"}, + {ACPI_EXD_POINTER, ACPI_EXD_NSOFFSET(child), "Child List"}, + {ACPI_EXD_POINTER, ACPI_EXD_NSOFFSET(peer), "Next Peer"} +}; + +/* Dispatch table, indexed by object type */ + +static struct acpi_exdump_info *acpi_ex_dump_info[] = { + NULL, + acpi_ex_dump_integer, + acpi_ex_dump_string, + acpi_ex_dump_buffer, + acpi_ex_dump_package, + NULL, + acpi_ex_dump_device, + acpi_ex_dump_event, + acpi_ex_dump_method, + acpi_ex_dump_mutex, + acpi_ex_dump_region, + acpi_ex_dump_power, + acpi_ex_dump_processor, + acpi_ex_dump_thermal, + acpi_ex_dump_buffer_field, + NULL, + NULL, + acpi_ex_dump_region_field, + acpi_ex_dump_bank_field, + acpi_ex_dump_index_field, + acpi_ex_dump_reference, + NULL, + NULL, + acpi_ex_dump_notify, + acpi_ex_dump_address_handler, + NULL, + NULL, + NULL +}; + +/******************************************************************************* + * + * FUNCTION: acpi_ex_dump_object + * + * PARAMETERS: obj_desc - Descriptor to dump + * Info - Info table corresponding to this object + * type + * + * RETURN: None + * + * DESCRIPTION: Walk the info table for this object + * + ******************************************************************************/ + +static void +acpi_ex_dump_object(union acpi_operand_object *obj_desc, + struct acpi_exdump_info *info) +{ + u8 *target; + char *name; + u8 count; + + if (!info) { + acpi_os_printf + ("ExDumpObject: Display not implemented for object type %s\n", + acpi_ut_get_object_type_name(obj_desc)); + return; + } + + /* First table entry must contain the table length (# of table entries) */ + + count = info->offset; + + while (count) { + target = ACPI_ADD_PTR(u8, obj_desc, info->offset); + name = info->name; + + switch (info->opcode) { + case ACPI_EXD_INIT: + break; + + case ACPI_EXD_TYPE: + acpi_ex_out_string("Type", + acpi_ut_get_object_type_name + (obj_desc)); + break; + + case ACPI_EXD_UINT8: + + acpi_os_printf("%20s : %2.2X\n", name, *target); + break; + + case ACPI_EXD_UINT16: + + acpi_os_printf("%20s : %4.4X\n", name, + ACPI_GET16(target)); + break; + + case ACPI_EXD_UINT32: + + acpi_os_printf("%20s : %8.8X\n", name, + ACPI_GET32(target)); + break; + + case ACPI_EXD_UINT64: + + acpi_os_printf("%20s : %8.8X%8.8X\n", "Value", + ACPI_FORMAT_UINT64(ACPI_GET64(target))); + break; + + case ACPI_EXD_POINTER: + case ACPI_EXD_ADDRESS: + + acpi_ex_out_pointer(name, + *ACPI_CAST_PTR(void *, target)); + break; + + case ACPI_EXD_STRING: + + acpi_ut_print_string(obj_desc->string.pointer, + ACPI_UINT8_MAX); + acpi_os_printf("\n"); + break; + + case ACPI_EXD_BUFFER: + + ACPI_DUMP_BUFFER(obj_desc->buffer.pointer, + obj_desc->buffer.length); + break; + + case ACPI_EXD_PACKAGE: + + /* Dump the package contents */ + + acpi_os_printf("\nPackage Contents:\n"); + acpi_ex_dump_package_obj(obj_desc, 0, 0); + break; + + case ACPI_EXD_FIELD: + + acpi_ex_dump_object(obj_desc, + acpi_ex_dump_field_common); + break; + + case ACPI_EXD_REFERENCE: + + acpi_ex_out_string("Class Name", + (char *) + acpi_ut_get_reference_name + (obj_desc)); + acpi_ex_dump_reference_obj(obj_desc); + break; + + default: + acpi_os_printf("**** Invalid table opcode [%X] ****\n", + info->opcode); + return; + } + + info++; + count--; + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_dump_operand + * + * PARAMETERS: *obj_desc - Pointer to entry to be dumped + * Depth - Current nesting depth + * + * RETURN: None + * + * DESCRIPTION: Dump an operand object + * + ******************************************************************************/ + +void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth) +{ + u32 length; + u32 index; + + ACPI_FUNCTION_NAME(ex_dump_operand) + + if (!((ACPI_LV_EXEC & acpi_dbg_level) + && (_COMPONENT & acpi_dbg_layer))) { + return; + } + + if (!obj_desc) { + + /* This could be a null element of a package */ + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Null Object Descriptor\n")); + return; + } + + if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == ACPI_DESC_TYPE_NAMED) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%p Namespace Node: ", + obj_desc)); + ACPI_DUMP_ENTRY(obj_desc, ACPI_LV_EXEC); + return; + } + + if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != ACPI_DESC_TYPE_OPERAND) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "%p is not a node or operand object: [%s]\n", + obj_desc, + acpi_ut_get_descriptor_name(obj_desc))); + ACPI_DUMP_BUFFER(obj_desc, sizeof(union acpi_operand_object)); + return; + } + + /* obj_desc is a valid object */ + + if (depth > 0) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%*s[%u] %p ", + depth, " ", depth, obj_desc)); + } else { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%p ", obj_desc)); + } + + /* Decode object type */ + + switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { + case ACPI_TYPE_LOCAL_REFERENCE: + + acpi_os_printf("Reference: [%s] ", + acpi_ut_get_reference_name(obj_desc)); + + switch (obj_desc->reference.class) { + case ACPI_REFCLASS_DEBUG: + + acpi_os_printf("\n"); + break; + + case ACPI_REFCLASS_INDEX: + + acpi_os_printf("%p\n", obj_desc->reference.object); + break; + + case ACPI_REFCLASS_TABLE: + + acpi_os_printf("Table Index %X\n", + obj_desc->reference.value); + break; + + case ACPI_REFCLASS_REFOF: + + acpi_os_printf("%p [%s]\n", obj_desc->reference.object, + acpi_ut_get_type_name(((union + acpi_operand_object + *) + obj_desc-> + reference. + object)->common. + type)); + break; + + case ACPI_REFCLASS_ARG: + + acpi_os_printf("%X", obj_desc->reference.value); + + if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) { + + /* Value is an Integer */ + + acpi_os_printf(" value is [%8.8X%8.8x]", + ACPI_FORMAT_UINT64(obj_desc-> + integer. + value)); + } + + acpi_os_printf("\n"); + break; + + case ACPI_REFCLASS_LOCAL: + + acpi_os_printf("%X", obj_desc->reference.value); + + if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) { + + /* Value is an Integer */ + + acpi_os_printf(" value is [%8.8X%8.8x]", + ACPI_FORMAT_UINT64(obj_desc-> + integer. + value)); + } + + acpi_os_printf("\n"); + break; + + case ACPI_REFCLASS_NAME: + + acpi_os_printf("- [%4.4s]\n", + obj_desc->reference.node->name.ascii); + break; + + default: /* Unknown reference class */ + + acpi_os_printf("%2.2X\n", obj_desc->reference.class); + break; + } + break; + + case ACPI_TYPE_BUFFER: + + acpi_os_printf("Buffer length %.2X @ %p\n", + obj_desc->buffer.length, + obj_desc->buffer.pointer); + + /* Debug only -- dump the buffer contents */ + + if (obj_desc->buffer.pointer) { + length = obj_desc->buffer.length; + if (length > 128) { + length = 128; + } + + acpi_os_printf + ("Buffer Contents: (displaying length 0x%.2X)\n", + length); + ACPI_DUMP_BUFFER(obj_desc->buffer.pointer, length); + } + break; + + case ACPI_TYPE_INTEGER: + + acpi_os_printf("Integer %8.8X%8.8X\n", + ACPI_FORMAT_UINT64(obj_desc->integer.value)); + break; + + case ACPI_TYPE_PACKAGE: + + acpi_os_printf("Package [Len %X] ElementArray %p\n", + obj_desc->package.count, + obj_desc->package.elements); + + /* + * If elements exist, package element pointer is valid, + * and debug_level exceeds 1, dump package's elements. + */ + if (obj_desc->package.count && + obj_desc->package.elements && acpi_dbg_level > 1) { + for (index = 0; index < obj_desc->package.count; + index++) { + acpi_ex_dump_operand(obj_desc->package. + elements[index], + depth + 1); + } + } + break; + + case ACPI_TYPE_REGION: + + acpi_os_printf("Region %s (%X)", + acpi_ut_get_region_name(obj_desc->region. + space_id), + obj_desc->region.space_id); + + /* + * If the address and length have not been evaluated, + * don't print them. + */ + if (!(obj_desc->region.flags & AOPOBJ_DATA_VALID)) { + acpi_os_printf("\n"); + } else { + acpi_os_printf(" base %8.8X%8.8X Length %X\n", + ACPI_FORMAT_NATIVE_UINT(obj_desc->region. + address), + obj_desc->region.length); + } + break; + + case ACPI_TYPE_STRING: + + acpi_os_printf("String length %X @ %p ", + obj_desc->string.length, + obj_desc->string.pointer); + + acpi_ut_print_string(obj_desc->string.pointer, ACPI_UINT8_MAX); + acpi_os_printf("\n"); + break; + + case ACPI_TYPE_LOCAL_BANK_FIELD: + + acpi_os_printf("BankField\n"); + break; + + case ACPI_TYPE_LOCAL_REGION_FIELD: + + acpi_os_printf + ("RegionField: Bits=%X AccWidth=%X Lock=%X Update=%X at byte=%X bit=%X of below:\n", + obj_desc->field.bit_length, + obj_desc->field.access_byte_width, + obj_desc->field.field_flags & AML_FIELD_LOCK_RULE_MASK, + obj_desc->field.field_flags & AML_FIELD_UPDATE_RULE_MASK, + obj_desc->field.base_byte_offset, + obj_desc->field.start_field_bit_offset); + + acpi_ex_dump_operand(obj_desc->field.region_obj, depth + 1); + break; + + case ACPI_TYPE_LOCAL_INDEX_FIELD: + + acpi_os_printf("IndexField\n"); + break; + + case ACPI_TYPE_BUFFER_FIELD: + + acpi_os_printf("BufferField: %X bits at byte %X bit %X of\n", + obj_desc->buffer_field.bit_length, + obj_desc->buffer_field.base_byte_offset, + obj_desc->buffer_field.start_field_bit_offset); + + if (!obj_desc->buffer_field.buffer_obj) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "*NULL*\n")); + } else + if (ACPI_GET_OBJECT_TYPE(obj_desc->buffer_field.buffer_obj) + != ACPI_TYPE_BUFFER) { + acpi_os_printf("*not a Buffer*\n"); + } else { + acpi_ex_dump_operand(obj_desc->buffer_field.buffer_obj, + depth + 1); + } + break; + + case ACPI_TYPE_EVENT: + + acpi_os_printf("Event\n"); + break; + + case ACPI_TYPE_METHOD: + + acpi_os_printf("Method(%X) @ %p:%X\n", + obj_desc->method.param_count, + obj_desc->method.aml_start, + obj_desc->method.aml_length); + break; + + case ACPI_TYPE_MUTEX: + + acpi_os_printf("Mutex\n"); + break; + + case ACPI_TYPE_DEVICE: + + acpi_os_printf("Device\n"); + break; + + case ACPI_TYPE_POWER: + + acpi_os_printf("Power\n"); + break; + + case ACPI_TYPE_PROCESSOR: + + acpi_os_printf("Processor\n"); + break; + + case ACPI_TYPE_THERMAL: + + acpi_os_printf("Thermal\n"); + break; + + default: + /* Unknown Type */ + + acpi_os_printf("Unknown Type %X\n", + ACPI_GET_OBJECT_TYPE(obj_desc)); + break; + } + + return; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_dump_operands + * + * PARAMETERS: Operands - A list of Operand objects + * opcode_name - AML opcode name + * num_operands - Operand count for this opcode + * + * DESCRIPTION: Dump the operands associated with the opcode + * + ******************************************************************************/ + +void +acpi_ex_dump_operands(union acpi_operand_object **operands, + const char *opcode_name, u32 num_operands) +{ + ACPI_FUNCTION_NAME(ex_dump_operands); + + if (!opcode_name) { + opcode_name = "UNKNOWN"; + } + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "**** Start operand dump for opcode [%s], %d operands\n", + opcode_name, num_operands)); + + if (num_operands == 0) { + num_operands = 1; + } + + /* Dump the individual operands */ + + while (num_operands) { + acpi_ex_dump_operand(*operands, 0); + operands++; + num_operands--; + } + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "**** End operand dump for [%s]\n", opcode_name)); + return; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_out* functions + * + * PARAMETERS: Title - Descriptive text + * Value - Value to be displayed + * + * DESCRIPTION: Object dump output formatting functions. These functions + * reduce the number of format strings required and keeps them + * all in one place for easy modification. + * + ******************************************************************************/ + +static void acpi_ex_out_string(char *title, char *value) +{ + acpi_os_printf("%20s : %s\n", title, value); +} + +static void acpi_ex_out_pointer(char *title, void *value) +{ + acpi_os_printf("%20s : %p\n", title, value); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_dump_namespace_node + * + * PARAMETERS: Node - Descriptor to dump + * Flags - Force display if TRUE + * + * DESCRIPTION: Dumps the members of the given.Node + * + ******************************************************************************/ + +void acpi_ex_dump_namespace_node(struct acpi_namespace_node *node, u32 flags) +{ + + ACPI_FUNCTION_ENTRY(); + + if (!flags) { + if (!((ACPI_LV_OBJECTS & acpi_dbg_level) + && (_COMPONENT & acpi_dbg_layer))) { + return; + } + } + + acpi_os_printf("%20s : %4.4s\n", "Name", acpi_ut_get_node_name(node)); + acpi_ex_out_string("Type", acpi_ut_get_type_name(node->type)); + acpi_ex_out_pointer("Attached Object", + acpi_ns_get_attached_object(node)); + acpi_ex_out_pointer("Parent", acpi_ns_get_parent_node(node)); + + acpi_ex_dump_object(ACPI_CAST_PTR(union acpi_operand_object, node), + acpi_ex_dump_node); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_dump_reference_obj + * + * PARAMETERS: Object - Descriptor to dump + * + * DESCRIPTION: Dumps a reference object + * + ******************************************************************************/ + +static void acpi_ex_dump_reference_obj(union acpi_operand_object *obj_desc) +{ + struct acpi_buffer ret_buf; + acpi_status status; + + ret_buf.length = ACPI_ALLOCATE_LOCAL_BUFFER; + + if (obj_desc->reference.class == ACPI_REFCLASS_NAME) { + acpi_os_printf(" %p ", obj_desc->reference.node); + + status = + acpi_ns_handle_to_pathname(obj_desc->reference.node, + &ret_buf); + if (ACPI_FAILURE(status)) { + acpi_os_printf(" Could not convert name to pathname\n"); + } else { + acpi_os_printf("%s\n", (char *)ret_buf.pointer); + ACPI_FREE(ret_buf.pointer); + } + } else if (obj_desc->reference.object) { + if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == + ACPI_DESC_TYPE_OPERAND) { + acpi_os_printf(" Target: %p", + obj_desc->reference.object); + if (obj_desc->reference.class == ACPI_REFCLASS_TABLE) { + acpi_os_printf(" Table Index: %X\n", + obj_desc->reference.value); + } else { + acpi_os_printf(" Target: %p [%s]\n", + obj_desc->reference.object, + acpi_ut_get_type_name(((union + acpi_operand_object + *) + obj_desc-> + reference. + object)-> + common. + type)); + } + } else { + acpi_os_printf(" Target: %p\n", + obj_desc->reference.object); + } + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_dump_package_obj + * + * PARAMETERS: obj_desc - Descriptor to dump + * Level - Indentation Level + * Index - Package index for this object + * + * DESCRIPTION: Dumps the elements of the package + * + ******************************************************************************/ + +static void +acpi_ex_dump_package_obj(union acpi_operand_object *obj_desc, + u32 level, u32 index) +{ + u32 i; + + /* Indentation and index output */ + + if (level > 0) { + for (i = 0; i < level; i++) { + acpi_os_printf(" "); + } + + acpi_os_printf("[%.2d] ", index); + } + + acpi_os_printf("%p ", obj_desc); + + /* Null package elements are allowed */ + + if (!obj_desc) { + acpi_os_printf("[Null Object]\n"); + return; + } + + /* Packages may only contain a few object types */ + + switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { + case ACPI_TYPE_INTEGER: + + acpi_os_printf("[Integer] = %8.8X%8.8X\n", + ACPI_FORMAT_UINT64(obj_desc->integer.value)); + break; + + case ACPI_TYPE_STRING: + + acpi_os_printf("[String] Value: "); + for (i = 0; i < obj_desc->string.length; i++) { + acpi_os_printf("%c", obj_desc->string.pointer[i]); + } + acpi_os_printf("\n"); + break; + + case ACPI_TYPE_BUFFER: + + acpi_os_printf("[Buffer] Length %.2X = ", + obj_desc->buffer.length); + if (obj_desc->buffer.length) { + acpi_ut_dump_buffer(ACPI_CAST_PTR + (u8, obj_desc->buffer.pointer), + obj_desc->buffer.length, + DB_DWORD_DISPLAY, _COMPONENT); + } else { + acpi_os_printf("\n"); + } + break; + + case ACPI_TYPE_PACKAGE: + + acpi_os_printf("[Package] Contains %d Elements:\n", + obj_desc->package.count); + + for (i = 0; i < obj_desc->package.count; i++) { + acpi_ex_dump_package_obj(obj_desc->package.elements[i], + level + 1, i); + } + break; + + case ACPI_TYPE_LOCAL_REFERENCE: + + acpi_os_printf("[Object Reference] Type [%s] %2.2X", + acpi_ut_get_reference_name(obj_desc), + obj_desc->reference.class); + acpi_ex_dump_reference_obj(obj_desc); + break; + + default: + + acpi_os_printf("[Unknown Type] %X\n", + ACPI_GET_OBJECT_TYPE(obj_desc)); + break; + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_dump_object_descriptor + * + * PARAMETERS: obj_desc - Descriptor to dump + * Flags - Force display if TRUE + * + * DESCRIPTION: Dumps the members of the object descriptor given. + * + ******************************************************************************/ + +void +acpi_ex_dump_object_descriptor(union acpi_operand_object *obj_desc, u32 flags) +{ + ACPI_FUNCTION_TRACE(ex_dump_object_descriptor); + + if (!obj_desc) { + return_VOID; + } + + if (!flags) { + if (!((ACPI_LV_OBJECTS & acpi_dbg_level) + && (_COMPONENT & acpi_dbg_layer))) { + return_VOID; + } + } + + if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == ACPI_DESC_TYPE_NAMED) { + acpi_ex_dump_namespace_node((struct acpi_namespace_node *) + obj_desc, flags); + + acpi_os_printf("\nAttached Object (%p):\n", + ((struct acpi_namespace_node *)obj_desc)-> + object); + + acpi_ex_dump_object_descriptor(((struct acpi_namespace_node *) + obj_desc)->object, flags); + return_VOID; + } + + if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != ACPI_DESC_TYPE_OPERAND) { + acpi_os_printf + ("ExDumpObjectDescriptor: %p is not an ACPI operand object: [%s]\n", + obj_desc, acpi_ut_get_descriptor_name(obj_desc)); + return_VOID; + } + + if (obj_desc->common.type > ACPI_TYPE_NS_NODE_MAX) { + return_VOID; + } + + /* Common Fields */ + + acpi_ex_dump_object(obj_desc, acpi_ex_dump_common); + + /* Object-specific fields */ + + acpi_ex_dump_object(obj_desc, acpi_ex_dump_info[obj_desc->common.type]); + return_VOID; +} + +#endif diff --git a/drivers/acpi/acpica/exfield.c b/drivers/acpi/acpica/exfield.c new file mode 100644 index 000000000000..7b6df031039d --- /dev/null +++ b/drivers/acpi/acpica/exfield.c @@ -0,0 +1,340 @@ +/****************************************************************************** + * + * Module Name: exfield - ACPI AML (p-code) execution - field manipulation + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include + +#define _COMPONENT ACPI_EXECUTER +ACPI_MODULE_NAME("exfield") + +/******************************************************************************* + * + * FUNCTION: acpi_ex_read_data_from_field + * + * PARAMETERS: walk_state - Current execution state + * obj_desc - The named field + * ret_buffer_desc - Where the return data object is stored + * + * RETURN: Status + * + * DESCRIPTION: Read from a named field. Returns either an Integer or a + * Buffer, depending on the size of the field. + * + ******************************************************************************/ +acpi_status +acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state, + union acpi_operand_object *obj_desc, + union acpi_operand_object **ret_buffer_desc) +{ + acpi_status status; + union acpi_operand_object *buffer_desc; + acpi_size length; + void *buffer; + + ACPI_FUNCTION_TRACE_PTR(ex_read_data_from_field, obj_desc); + + /* Parameter validation */ + + if (!obj_desc) { + return_ACPI_STATUS(AE_AML_NO_OPERAND); + } + if (!ret_buffer_desc) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_BUFFER_FIELD) { + /* + * If the buffer_field arguments have not been previously evaluated, + * evaluate them now and save the results. + */ + if (!(obj_desc->common.flags & AOPOBJ_DATA_VALID)) { + status = acpi_ds_get_buffer_field_arguments(obj_desc); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + } else + if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_REGION_FIELD) + && (obj_desc->field.region_obj->region.space_id == + ACPI_ADR_SPACE_SMBUS)) { + /* + * This is an SMBus read. We must create a buffer to hold the data + * and directly access the region handler. + */ + buffer_desc = + acpi_ut_create_buffer_object(ACPI_SMBUS_BUFFER_SIZE); + if (!buffer_desc) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* Lock entire transaction if requested */ + + acpi_ex_acquire_global_lock(obj_desc->common_field.field_flags); + + /* + * Perform the read. + * Note: Smbus protocol value is passed in upper 16-bits of Function + */ + status = acpi_ex_access_region(obj_desc, 0, + ACPI_CAST_PTR(acpi_integer, + buffer_desc-> + buffer.pointer), + ACPI_READ | (obj_desc->field. + attribute << 16)); + acpi_ex_release_global_lock(obj_desc->common_field.field_flags); + goto exit; + } + + /* + * Allocate a buffer for the contents of the field. + * + * If the field is larger than the size of an acpi_integer, create + * a BUFFER to hold it. Otherwise, use an INTEGER. This allows + * the use of arithmetic operators on the returned value if the + * field size is equal or smaller than an Integer. + * + * Note: Field.length is in bits. + */ + length = + (acpi_size) ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->field.bit_length); + if (length > acpi_gbl_integer_byte_width) { + + /* Field is too large for an Integer, create a Buffer instead */ + + buffer_desc = acpi_ut_create_buffer_object(length); + if (!buffer_desc) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + buffer = buffer_desc->buffer.pointer; + } else { + /* Field will fit within an Integer (normal case) */ + + buffer_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + if (!buffer_desc) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + length = acpi_gbl_integer_byte_width; + buffer_desc->integer.value = 0; + buffer = &buffer_desc->integer.value; + } + + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, + "FieldRead [TO]: Obj %p, Type %X, Buf %p, ByteLen %X\n", + obj_desc, ACPI_GET_OBJECT_TYPE(obj_desc), buffer, + (u32) length)); + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, + "FieldRead [FROM]: BitLen %X, BitOff %X, ByteOff %X\n", + obj_desc->common_field.bit_length, + obj_desc->common_field.start_field_bit_offset, + obj_desc->common_field.base_byte_offset)); + + /* Lock entire transaction if requested */ + + acpi_ex_acquire_global_lock(obj_desc->common_field.field_flags); + + /* Read from the field */ + + status = acpi_ex_extract_from_field(obj_desc, buffer, (u32) length); + acpi_ex_release_global_lock(obj_desc->common_field.field_flags); + + exit: + if (ACPI_FAILURE(status)) { + acpi_ut_remove_reference(buffer_desc); + } else { + *ret_buffer_desc = buffer_desc; + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_write_data_to_field + * + * PARAMETERS: source_desc - Contains data to write + * obj_desc - The named field + * result_desc - Where the return value is returned, if any + * + * RETURN: Status + * + * DESCRIPTION: Write to a named field + * + ******************************************************************************/ + +acpi_status +acpi_ex_write_data_to_field(union acpi_operand_object *source_desc, + union acpi_operand_object *obj_desc, + union acpi_operand_object **result_desc) +{ + acpi_status status; + u32 length; + void *buffer; + union acpi_operand_object *buffer_desc; + + ACPI_FUNCTION_TRACE_PTR(ex_write_data_to_field, obj_desc); + + /* Parameter validation */ + + if (!source_desc || !obj_desc) { + return_ACPI_STATUS(AE_AML_NO_OPERAND); + } + + if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_BUFFER_FIELD) { + /* + * If the buffer_field arguments have not been previously evaluated, + * evaluate them now and save the results. + */ + if (!(obj_desc->common.flags & AOPOBJ_DATA_VALID)) { + status = acpi_ds_get_buffer_field_arguments(obj_desc); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + } else + if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_REGION_FIELD) + && (obj_desc->field.region_obj->region.space_id == + ACPI_ADR_SPACE_SMBUS)) { + /* + * This is an SMBus write. We will bypass the entire field mechanism + * and handoff the buffer directly to the handler. + * + * Source must be a buffer of sufficient size (ACPI_SMBUS_BUFFER_SIZE). + */ + if (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_BUFFER) { + ACPI_ERROR((AE_INFO, + "SMBus write requires Buffer, found type %s", + acpi_ut_get_object_type_name(source_desc))); + + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + + if (source_desc->buffer.length < ACPI_SMBUS_BUFFER_SIZE) { + ACPI_ERROR((AE_INFO, + "SMBus write requires Buffer of length %X, found length %X", + ACPI_SMBUS_BUFFER_SIZE, + source_desc->buffer.length)); + + return_ACPI_STATUS(AE_AML_BUFFER_LIMIT); + } + + buffer_desc = + acpi_ut_create_buffer_object(ACPI_SMBUS_BUFFER_SIZE); + if (!buffer_desc) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + buffer = buffer_desc->buffer.pointer; + ACPI_MEMCPY(buffer, source_desc->buffer.pointer, + ACPI_SMBUS_BUFFER_SIZE); + + /* Lock entire transaction if requested */ + + acpi_ex_acquire_global_lock(obj_desc->common_field.field_flags); + + /* + * Perform the write (returns status and perhaps data in the + * same buffer) + * Note: SMBus protocol type is passed in upper 16-bits of Function. + */ + status = acpi_ex_access_region(obj_desc, 0, + (acpi_integer *) buffer, + ACPI_WRITE | (obj_desc->field. + attribute << 16)); + acpi_ex_release_global_lock(obj_desc->common_field.field_flags); + + *result_desc = buffer_desc; + return_ACPI_STATUS(status); + } + + /* Get a pointer to the data to be written */ + + switch (ACPI_GET_OBJECT_TYPE(source_desc)) { + case ACPI_TYPE_INTEGER: + buffer = &source_desc->integer.value; + length = sizeof(source_desc->integer.value); + break; + + case ACPI_TYPE_BUFFER: + buffer = source_desc->buffer.pointer; + length = source_desc->buffer.length; + break; + + case ACPI_TYPE_STRING: + buffer = source_desc->string.pointer; + length = source_desc->string.length; + break; + + default: + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, + "FieldWrite [FROM]: Obj %p (%s:%X), Buf %p, ByteLen %X\n", + source_desc, + acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE + (source_desc)), + ACPI_GET_OBJECT_TYPE(source_desc), buffer, length)); + + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, + "FieldWrite [TO]: Obj %p (%s:%X), BitLen %X, BitOff %X, ByteOff %X\n", + obj_desc, + acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE(obj_desc)), + ACPI_GET_OBJECT_TYPE(obj_desc), + obj_desc->common_field.bit_length, + obj_desc->common_field.start_field_bit_offset, + obj_desc->common_field.base_byte_offset)); + + /* Lock entire transaction if requested */ + + acpi_ex_acquire_global_lock(obj_desc->common_field.field_flags); + + /* Write to the field */ + + status = acpi_ex_insert_into_field(obj_desc, buffer, length); + acpi_ex_release_global_lock(obj_desc->common_field.field_flags); + + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/exfldio.c b/drivers/acpi/acpica/exfldio.c new file mode 100644 index 000000000000..33cd17a1064f --- /dev/null +++ b/drivers/acpi/acpica/exfldio.c @@ -0,0 +1,961 @@ +/****************************************************************************** + * + * Module Name: exfldio - Aml Field I/O + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_EXECUTER +ACPI_MODULE_NAME("exfldio") + +/* Local prototypes */ +static acpi_status +acpi_ex_field_datum_io(union acpi_operand_object *obj_desc, + u32 field_datum_byte_offset, + acpi_integer * value, u32 read_write); + +static u8 +acpi_ex_register_overflow(union acpi_operand_object *obj_desc, + acpi_integer value); + +static acpi_status +acpi_ex_setup_region(union acpi_operand_object *obj_desc, + u32 field_datum_byte_offset); + +/******************************************************************************* + * + * FUNCTION: acpi_ex_setup_region + * + * PARAMETERS: obj_desc - Field to be read or written + * field_datum_byte_offset - Byte offset of this datum within the + * parent field + * + * RETURN: Status + * + * DESCRIPTION: Common processing for acpi_ex_extract_from_field and + * acpi_ex_insert_into_field. Initialize the Region if necessary and + * validate the request. + * + ******************************************************************************/ + +static acpi_status +acpi_ex_setup_region(union acpi_operand_object *obj_desc, + u32 field_datum_byte_offset) +{ + acpi_status status = AE_OK; + union acpi_operand_object *rgn_desc; + + ACPI_FUNCTION_TRACE_U32(ex_setup_region, field_datum_byte_offset); + + rgn_desc = obj_desc->common_field.region_obj; + + /* We must have a valid region */ + + if (ACPI_GET_OBJECT_TYPE(rgn_desc) != ACPI_TYPE_REGION) { + ACPI_ERROR((AE_INFO, "Needed Region, found type %X (%s)", + ACPI_GET_OBJECT_TYPE(rgn_desc), + acpi_ut_get_object_type_name(rgn_desc))); + + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + + /* + * If the Region Address and Length have not been previously evaluated, + * evaluate them now and save the results. + */ + if (!(rgn_desc->common.flags & AOPOBJ_DATA_VALID)) { + status = acpi_ds_get_region_arguments(rgn_desc); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + + /* Exit if Address/Length have been disallowed by the host OS */ + + if (rgn_desc->common.flags & AOPOBJ_INVALID) { + return_ACPI_STATUS(AE_AML_ILLEGAL_ADDRESS); + } + + /* + * Exit now for SMBus address space, it has a non-linear address space + * and the request cannot be directly validated + */ + if (rgn_desc->region.space_id == ACPI_ADR_SPACE_SMBUS) { + + /* SMBus has a non-linear address space */ + + return_ACPI_STATUS(AE_OK); + } +#ifdef ACPI_UNDER_DEVELOPMENT + /* + * If the Field access is any_acc, we can now compute the optimal + * access (because we know know the length of the parent region) + */ + if (!(obj_desc->common.flags & AOPOBJ_DATA_VALID)) { + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } +#endif + + /* + * Validate the request. The entire request from the byte offset for a + * length of one field datum (access width) must fit within the region. + * (Region length is specified in bytes) + */ + if (rgn_desc->region.length < + (obj_desc->common_field.base_byte_offset + + field_datum_byte_offset + + obj_desc->common_field.access_byte_width)) { + if (acpi_gbl_enable_interpreter_slack) { + /* + * Slack mode only: We will go ahead and allow access to this + * field if it is within the region length rounded up to the next + * access width boundary. acpi_size cast for 64-bit compile. + */ + if (ACPI_ROUND_UP(rgn_desc->region.length, + obj_desc->common_field. + access_byte_width) >= + ((acpi_size) obj_desc->common_field. + base_byte_offset + + obj_desc->common_field.access_byte_width + + field_datum_byte_offset)) { + return_ACPI_STATUS(AE_OK); + } + } + + if (rgn_desc->region.length < + obj_desc->common_field.access_byte_width) { + /* + * This is the case where the access_type (acc_word, etc.) is wider + * than the region itself. For example, a region of length one + * byte, and a field with Dword access specified. + */ + ACPI_ERROR((AE_INFO, + "Field [%4.4s] access width (%d bytes) too large for region [%4.4s] (length %X)", + acpi_ut_get_node_name(obj_desc-> + common_field.node), + obj_desc->common_field.access_byte_width, + acpi_ut_get_node_name(rgn_desc->region. + node), + rgn_desc->region.length)); + } + + /* + * Offset rounded up to next multiple of field width + * exceeds region length, indicate an error + */ + ACPI_ERROR((AE_INFO, + "Field [%4.4s] Base+Offset+Width %X+%X+%X is beyond end of region [%4.4s] (length %X)", + acpi_ut_get_node_name(obj_desc->common_field.node), + obj_desc->common_field.base_byte_offset, + field_datum_byte_offset, + obj_desc->common_field.access_byte_width, + acpi_ut_get_node_name(rgn_desc->region.node), + rgn_desc->region.length)); + + return_ACPI_STATUS(AE_AML_REGION_LIMIT); + } + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_access_region + * + * PARAMETERS: obj_desc - Field to be read + * field_datum_byte_offset - Byte offset of this datum within the + * parent field + * Value - Where to store value (must at least + * the size of acpi_integer) + * Function - Read or Write flag plus other region- + * dependent flags + * + * RETURN: Status + * + * DESCRIPTION: Read or Write a single field datum to an Operation Region. + * + ******************************************************************************/ + +acpi_status +acpi_ex_access_region(union acpi_operand_object *obj_desc, + u32 field_datum_byte_offset, + acpi_integer * value, u32 function) +{ + acpi_status status; + union acpi_operand_object *rgn_desc; + acpi_physical_address address; + + ACPI_FUNCTION_TRACE(ex_access_region); + + /* + * Ensure that the region operands are fully evaluated and verify + * the validity of the request + */ + status = acpi_ex_setup_region(obj_desc, field_datum_byte_offset); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * The physical address of this field datum is: + * + * 1) The base of the region, plus + * 2) The base offset of the field, plus + * 3) The current offset into the field + */ + rgn_desc = obj_desc->common_field.region_obj; + address = rgn_desc->region.address + + obj_desc->common_field.base_byte_offset + field_datum_byte_offset; + + if ((function & ACPI_IO_MASK) == ACPI_READ) { + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, "[READ]")); + } else { + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, "[WRITE]")); + } + + ACPI_DEBUG_PRINT_RAW((ACPI_DB_BFIELD, + " Region [%s:%X], Width %X, ByteBase %X, Offset %X at %p\n", + acpi_ut_get_region_name(rgn_desc->region. + space_id), + rgn_desc->region.space_id, + obj_desc->common_field.access_byte_width, + obj_desc->common_field.base_byte_offset, + field_datum_byte_offset, ACPI_CAST_PTR(void, + address))); + + /* Invoke the appropriate address_space/op_region handler */ + + status = acpi_ev_address_space_dispatch(rgn_desc, function, + address, + ACPI_MUL_8(obj_desc-> + common_field. + access_byte_width), + value); + + if (ACPI_FAILURE(status)) { + if (status == AE_NOT_IMPLEMENTED) { + ACPI_ERROR((AE_INFO, + "Region %s(%X) not implemented", + acpi_ut_get_region_name(rgn_desc->region. + space_id), + rgn_desc->region.space_id)); + } else if (status == AE_NOT_EXIST) { + ACPI_ERROR((AE_INFO, + "Region %s(%X) has no handler", + acpi_ut_get_region_name(rgn_desc->region. + space_id), + rgn_desc->region.space_id)); + } + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_register_overflow + * + * PARAMETERS: obj_desc - Register(Field) to be written + * Value - Value to be stored + * + * RETURN: TRUE if value overflows the field, FALSE otherwise + * + * DESCRIPTION: Check if a value is out of range of the field being written. + * Used to check if the values written to Index and Bank registers + * are out of range. Normally, the value is simply truncated + * to fit the field, but this case is most likely a serious + * coding error in the ASL. + * + ******************************************************************************/ + +static u8 +acpi_ex_register_overflow(union acpi_operand_object *obj_desc, + acpi_integer value) +{ + + if (obj_desc->common_field.bit_length >= ACPI_INTEGER_BIT_SIZE) { + /* + * The field is large enough to hold the maximum integer, so we can + * never overflow it. + */ + return (FALSE); + } + + if (value >= ((acpi_integer) 1 << obj_desc->common_field.bit_length)) { + /* + * The Value is larger than the maximum value that can fit into + * the register. + */ + return (TRUE); + } + + /* The Value will fit into the field with no truncation */ + + return (FALSE); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_field_datum_io + * + * PARAMETERS: obj_desc - Field to be read + * field_datum_byte_offset - Byte offset of this datum within the + * parent field + * Value - Where to store value (must be 64 bits) + * read_write - Read or Write flag + * + * RETURN: Status + * + * DESCRIPTION: Read or Write a single datum of a field. The field_type is + * demultiplexed here to handle the different types of fields + * (buffer_field, region_field, index_field, bank_field) + * + ******************************************************************************/ + +static acpi_status +acpi_ex_field_datum_io(union acpi_operand_object *obj_desc, + u32 field_datum_byte_offset, + acpi_integer * value, u32 read_write) +{ + acpi_status status; + acpi_integer local_value; + + ACPI_FUNCTION_TRACE_U32(ex_field_datum_io, field_datum_byte_offset); + + if (read_write == ACPI_READ) { + if (!value) { + local_value = 0; + + /* To support reads without saving return value */ + value = &local_value; + } + + /* Clear the entire return buffer first, [Very Important!] */ + + *value = 0; + } + + /* + * The four types of fields are: + * + * buffer_field - Read/write from/to a Buffer + * region_field - Read/write from/to a Operation Region. + * bank_field - Write to a Bank Register, then read/write from/to an + * operation_region + * index_field - Write to an Index Register, then read/write from/to a + * Data Register + */ + switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { + case ACPI_TYPE_BUFFER_FIELD: + /* + * If the buffer_field arguments have not been previously evaluated, + * evaluate them now and save the results. + */ + if (!(obj_desc->common.flags & AOPOBJ_DATA_VALID)) { + status = acpi_ds_get_buffer_field_arguments(obj_desc); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + + if (read_write == ACPI_READ) { + /* + * Copy the data from the source buffer. + * Length is the field width in bytes. + */ + ACPI_MEMCPY(value, + (obj_desc->buffer_field.buffer_obj)->buffer. + pointer + + obj_desc->buffer_field.base_byte_offset + + field_datum_byte_offset, + obj_desc->common_field.access_byte_width); + } else { + /* + * Copy the data to the target buffer. + * Length is the field width in bytes. + */ + ACPI_MEMCPY((obj_desc->buffer_field.buffer_obj)->buffer. + pointer + + obj_desc->buffer_field.base_byte_offset + + field_datum_byte_offset, value, + obj_desc->common_field.access_byte_width); + } + + status = AE_OK; + break; + + case ACPI_TYPE_LOCAL_BANK_FIELD: + + /* + * Ensure that the bank_value is not beyond the capacity of + * the register + */ + if (acpi_ex_register_overflow(obj_desc->bank_field.bank_obj, + (acpi_integer) obj_desc-> + bank_field.value)) { + return_ACPI_STATUS(AE_AML_REGISTER_LIMIT); + } + + /* + * For bank_fields, we must write the bank_value to the bank_register + * (itself a region_field) before we can access the data. + */ + status = + acpi_ex_insert_into_field(obj_desc->bank_field.bank_obj, + &obj_desc->bank_field.value, + sizeof(obj_desc->bank_field. + value)); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * Now that the Bank has been selected, fall through to the + * region_field case and write the datum to the Operation Region + */ + + /*lint -fallthrough */ + + case ACPI_TYPE_LOCAL_REGION_FIELD: + /* + * For simple region_fields, we just directly access the owning + * Operation Region. + */ + status = + acpi_ex_access_region(obj_desc, field_datum_byte_offset, + value, read_write); + break; + + case ACPI_TYPE_LOCAL_INDEX_FIELD: + + /* + * Ensure that the index_value is not beyond the capacity of + * the register + */ + if (acpi_ex_register_overflow(obj_desc->index_field.index_obj, + (acpi_integer) obj_desc-> + index_field.value)) { + return_ACPI_STATUS(AE_AML_REGISTER_LIMIT); + } + + /* Write the index value to the index_register (itself a region_field) */ + + field_datum_byte_offset += obj_desc->index_field.value; + + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, + "Write to Index Register: Value %8.8X\n", + field_datum_byte_offset)); + + status = + acpi_ex_insert_into_field(obj_desc->index_field.index_obj, + &field_datum_byte_offset, + sizeof(field_datum_byte_offset)); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + if (read_write == ACPI_READ) { + + /* Read the datum from the data_register */ + + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, + "Read from Data Register\n")); + + status = + acpi_ex_extract_from_field(obj_desc->index_field. + data_obj, value, + sizeof(acpi_integer)); + } else { + /* Write the datum to the data_register */ + + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, + "Write to Data Register: Value %8.8X%8.8X\n", + ACPI_FORMAT_UINT64(*value))); + + status = + acpi_ex_insert_into_field(obj_desc->index_field. + data_obj, value, + sizeof(acpi_integer)); + } + break; + + default: + + ACPI_ERROR((AE_INFO, "Wrong object type in field I/O %X", + ACPI_GET_OBJECT_TYPE(obj_desc))); + status = AE_AML_INTERNAL; + break; + } + + if (ACPI_SUCCESS(status)) { + if (read_write == ACPI_READ) { + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, + "Value Read %8.8X%8.8X, Width %d\n", + ACPI_FORMAT_UINT64(*value), + obj_desc->common_field. + access_byte_width)); + } else { + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, + "Value Written %8.8X%8.8X, Width %d\n", + ACPI_FORMAT_UINT64(*value), + obj_desc->common_field. + access_byte_width)); + } + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_write_with_update_rule + * + * PARAMETERS: obj_desc - Field to be written + * Mask - bitmask within field datum + * field_value - Value to write + * field_datum_byte_offset - Offset of datum within field + * + * RETURN: Status + * + * DESCRIPTION: Apply the field update rule to a field write + * + ******************************************************************************/ + +acpi_status +acpi_ex_write_with_update_rule(union acpi_operand_object *obj_desc, + acpi_integer mask, + acpi_integer field_value, + u32 field_datum_byte_offset) +{ + acpi_status status = AE_OK; + acpi_integer merged_value; + acpi_integer current_value; + + ACPI_FUNCTION_TRACE_U32(ex_write_with_update_rule, mask); + + /* Start with the new bits */ + + merged_value = field_value; + + /* If the mask is all ones, we don't need to worry about the update rule */ + + if (mask != ACPI_INTEGER_MAX) { + + /* Decode the update rule */ + + switch (obj_desc->common_field. + field_flags & AML_FIELD_UPDATE_RULE_MASK) { + case AML_FIELD_UPDATE_PRESERVE: + /* + * Check if update rule needs to be applied (not if mask is all + * ones) The left shift drops the bits we want to ignore. + */ + if ((~mask << (ACPI_MUL_8(sizeof(mask)) - + ACPI_MUL_8(obj_desc->common_field. + access_byte_width))) != 0) { + /* + * Read the current contents of the byte/word/dword containing + * the field, and merge with the new field value. + */ + status = + acpi_ex_field_datum_io(obj_desc, + field_datum_byte_offset, + ¤t_value, + ACPI_READ); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + merged_value |= (current_value & ~mask); + } + break; + + case AML_FIELD_UPDATE_WRITE_AS_ONES: + + /* Set positions outside the field to all ones */ + + merged_value |= ~mask; + break; + + case AML_FIELD_UPDATE_WRITE_AS_ZEROS: + + /* Set positions outside the field to all zeros */ + + merged_value &= mask; + break; + + default: + + ACPI_ERROR((AE_INFO, + "Unknown UpdateRule value: %X", + (obj_desc->common_field. + field_flags & + AML_FIELD_UPDATE_RULE_MASK))); + return_ACPI_STATUS(AE_AML_OPERAND_VALUE); + } + } + + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, + "Mask %8.8X%8.8X, DatumOffset %X, Width %X, Value %8.8X%8.8X, MergedValue %8.8X%8.8X\n", + ACPI_FORMAT_UINT64(mask), + field_datum_byte_offset, + obj_desc->common_field.access_byte_width, + ACPI_FORMAT_UINT64(field_value), + ACPI_FORMAT_UINT64(merged_value))); + + /* Write the merged value */ + + status = acpi_ex_field_datum_io(obj_desc, field_datum_byte_offset, + &merged_value, ACPI_WRITE); + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_extract_from_field + * + * PARAMETERS: obj_desc - Field to be read + * Buffer - Where to store the field data + * buffer_length - Length of Buffer + * + * RETURN: Status + * + * DESCRIPTION: Retrieve the current value of the given field + * + ******************************************************************************/ + +acpi_status +acpi_ex_extract_from_field(union acpi_operand_object *obj_desc, + void *buffer, u32 buffer_length) +{ + acpi_status status; + acpi_integer raw_datum; + acpi_integer merged_datum; + u32 field_offset = 0; + u32 buffer_offset = 0; + u32 buffer_tail_bits; + u32 datum_count; + u32 field_datum_count; + u32 i; + + ACPI_FUNCTION_TRACE(ex_extract_from_field); + + /* Validate target buffer and clear it */ + + if (buffer_length < + ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->common_field.bit_length)) { + ACPI_ERROR((AE_INFO, + "Field size %X (bits) is too large for buffer (%X)", + obj_desc->common_field.bit_length, buffer_length)); + + return_ACPI_STATUS(AE_BUFFER_OVERFLOW); + } + ACPI_MEMSET(buffer, 0, buffer_length); + + /* Compute the number of datums (access width data items) */ + + datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length, + obj_desc->common_field.access_bit_width); + field_datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length + + obj_desc->common_field. + start_field_bit_offset, + obj_desc->common_field. + access_bit_width); + + /* Priming read from the field */ + + status = + acpi_ex_field_datum_io(obj_desc, field_offset, &raw_datum, + ACPI_READ); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + merged_datum = + raw_datum >> obj_desc->common_field.start_field_bit_offset; + + /* Read the rest of the field */ + + for (i = 1; i < field_datum_count; i++) { + + /* Get next input datum from the field */ + + field_offset += obj_desc->common_field.access_byte_width; + status = acpi_ex_field_datum_io(obj_desc, field_offset, + &raw_datum, ACPI_READ); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * Merge with previous datum if necessary. + * + * Note: Before the shift, check if the shift value will be larger than + * the integer size. If so, there is no need to perform the operation. + * This avoids the differences in behavior between different compilers + * concerning shift values larger than the target data width. + */ + if ((obj_desc->common_field.access_bit_width - + obj_desc->common_field.start_field_bit_offset) < + ACPI_INTEGER_BIT_SIZE) { + merged_datum |= + raw_datum << (obj_desc->common_field. + access_bit_width - + obj_desc->common_field. + start_field_bit_offset); + } + + if (i == datum_count) { + break; + } + + /* Write merged datum to target buffer */ + + ACPI_MEMCPY(((char *)buffer) + buffer_offset, &merged_datum, + ACPI_MIN(obj_desc->common_field.access_byte_width, + buffer_length - buffer_offset)); + + buffer_offset += obj_desc->common_field.access_byte_width; + merged_datum = + raw_datum >> obj_desc->common_field.start_field_bit_offset; + } + + /* Mask off any extra bits in the last datum */ + + buffer_tail_bits = obj_desc->common_field.bit_length % + obj_desc->common_field.access_bit_width; + if (buffer_tail_bits) { + merged_datum &= ACPI_MASK_BITS_ABOVE(buffer_tail_bits); + } + + /* Write the last datum to the buffer */ + + ACPI_MEMCPY(((char *)buffer) + buffer_offset, &merged_datum, + ACPI_MIN(obj_desc->common_field.access_byte_width, + buffer_length - buffer_offset)); + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_insert_into_field + * + * PARAMETERS: obj_desc - Field to be written + * Buffer - Data to be written + * buffer_length - Length of Buffer + * + * RETURN: Status + * + * DESCRIPTION: Store the Buffer contents into the given field + * + ******************************************************************************/ + +acpi_status +acpi_ex_insert_into_field(union acpi_operand_object *obj_desc, + void *buffer, u32 buffer_length) +{ + acpi_status status; + acpi_integer mask; + acpi_integer width_mask; + acpi_integer merged_datum; + acpi_integer raw_datum = 0; + u32 field_offset = 0; + u32 buffer_offset = 0; + u32 buffer_tail_bits; + u32 datum_count; + u32 field_datum_count; + u32 i; + u32 required_length; + void *new_buffer; + + ACPI_FUNCTION_TRACE(ex_insert_into_field); + + /* Validate input buffer */ + + new_buffer = NULL; + required_length = + ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->common_field.bit_length); + /* + * We must have a buffer that is at least as long as the field + * we are writing to. This is because individual fields are + * indivisible and partial writes are not supported -- as per + * the ACPI specification. + */ + if (buffer_length < required_length) { + + /* We need to create a new buffer */ + + new_buffer = ACPI_ALLOCATE_ZEROED(required_length); + if (!new_buffer) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* + * Copy the original data to the new buffer, starting + * at Byte zero. All unused (upper) bytes of the + * buffer will be 0. + */ + ACPI_MEMCPY((char *)new_buffer, (char *)buffer, buffer_length); + buffer = new_buffer; + buffer_length = required_length; + } + + /* + * Create the bitmasks used for bit insertion. + * Note: This if/else is used to bypass compiler differences with the + * shift operator + */ + if (obj_desc->common_field.access_bit_width == ACPI_INTEGER_BIT_SIZE) { + width_mask = ACPI_INTEGER_MAX; + } else { + width_mask = + ACPI_MASK_BITS_ABOVE(obj_desc->common_field. + access_bit_width); + } + + mask = width_mask & + ACPI_MASK_BITS_BELOW(obj_desc->common_field.start_field_bit_offset); + + /* Compute the number of datums (access width data items) */ + + datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length, + obj_desc->common_field.access_bit_width); + + field_datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length + + obj_desc->common_field. + start_field_bit_offset, + obj_desc->common_field. + access_bit_width); + + /* Get initial Datum from the input buffer */ + + ACPI_MEMCPY(&raw_datum, buffer, + ACPI_MIN(obj_desc->common_field.access_byte_width, + buffer_length - buffer_offset)); + + merged_datum = + raw_datum << obj_desc->common_field.start_field_bit_offset; + + /* Write the entire field */ + + for (i = 1; i < field_datum_count; i++) { + + /* Write merged datum to the target field */ + + merged_datum &= mask; + status = acpi_ex_write_with_update_rule(obj_desc, mask, + merged_datum, + field_offset); + if (ACPI_FAILURE(status)) { + goto exit; + } + + field_offset += obj_desc->common_field.access_byte_width; + + /* + * Start new output datum by merging with previous input datum + * if necessary. + * + * Note: Before the shift, check if the shift value will be larger than + * the integer size. If so, there is no need to perform the operation. + * This avoids the differences in behavior between different compilers + * concerning shift values larger than the target data width. + */ + if ((obj_desc->common_field.access_bit_width - + obj_desc->common_field.start_field_bit_offset) < + ACPI_INTEGER_BIT_SIZE) { + merged_datum = + raw_datum >> (obj_desc->common_field. + access_bit_width - + obj_desc->common_field. + start_field_bit_offset); + } else { + merged_datum = 0; + } + + mask = width_mask; + + if (i == datum_count) { + break; + } + + /* Get the next input datum from the buffer */ + + buffer_offset += obj_desc->common_field.access_byte_width; + ACPI_MEMCPY(&raw_datum, ((char *)buffer) + buffer_offset, + ACPI_MIN(obj_desc->common_field.access_byte_width, + buffer_length - buffer_offset)); + merged_datum |= + raw_datum << obj_desc->common_field.start_field_bit_offset; + } + + /* Mask off any extra bits in the last datum */ + + buffer_tail_bits = (obj_desc->common_field.bit_length + + obj_desc->common_field.start_field_bit_offset) % + obj_desc->common_field.access_bit_width; + if (buffer_tail_bits) { + mask &= ACPI_MASK_BITS_ABOVE(buffer_tail_bits); + } + + /* Write the last datum to the field */ + + merged_datum &= mask; + status = acpi_ex_write_with_update_rule(obj_desc, + mask, merged_datum, + field_offset); + + exit: + /* Free temporary buffer if we used one */ + + if (new_buffer) { + ACPI_FREE(new_buffer); + } + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/exmisc.c b/drivers/acpi/acpica/exmisc.c new file mode 100644 index 000000000000..e445463de8a9 --- /dev/null +++ b/drivers/acpi/acpica/exmisc.c @@ -0,0 +1,726 @@ + +/****************************************************************************** + * + * Module Name: exmisc - ACPI AML (p-code) execution - specific opcodes + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_EXECUTER +ACPI_MODULE_NAME("exmisc") + +/******************************************************************************* + * + * FUNCTION: acpi_ex_get_object_reference + * + * PARAMETERS: obj_desc - Create a reference to this object + * return_desc - Where to store the reference + * walk_state - Current state + * + * RETURN: Status + * + * DESCRIPTION: Obtain and return a "reference" to the target object + * Common code for the ref_of_op and the cond_ref_of_op. + * + ******************************************************************************/ +acpi_status +acpi_ex_get_object_reference(union acpi_operand_object *obj_desc, + union acpi_operand_object **return_desc, + struct acpi_walk_state *walk_state) +{ + union acpi_operand_object *reference_obj; + union acpi_operand_object *referenced_obj; + + ACPI_FUNCTION_TRACE_PTR(ex_get_object_reference, obj_desc); + + *return_desc = NULL; + + switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) { + case ACPI_DESC_TYPE_OPERAND: + + if (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_LOCAL_REFERENCE) { + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + + /* + * Must be a reference to a Local or Arg + */ + switch (obj_desc->reference.class) { + case ACPI_REFCLASS_LOCAL: + case ACPI_REFCLASS_ARG: + case ACPI_REFCLASS_DEBUG: + + /* The referenced object is the pseudo-node for the local/arg */ + + referenced_obj = obj_desc->reference.object; + break; + + default: + + ACPI_ERROR((AE_INFO, "Unknown Reference Class %2.2X", + obj_desc->reference.class)); + return_ACPI_STATUS(AE_AML_INTERNAL); + } + break; + + case ACPI_DESC_TYPE_NAMED: + + /* + * A named reference that has already been resolved to a Node + */ + referenced_obj = obj_desc; + break; + + default: + + ACPI_ERROR((AE_INFO, "Invalid descriptor type %X", + ACPI_GET_DESCRIPTOR_TYPE(obj_desc))); + return_ACPI_STATUS(AE_TYPE); + } + + /* Create a new reference object */ + + reference_obj = + acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_REFERENCE); + if (!reference_obj) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + reference_obj->reference.class = ACPI_REFCLASS_REFOF; + reference_obj->reference.object = referenced_obj; + *return_desc = reference_obj; + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Object %p Type [%s], returning Reference %p\n", + obj_desc, acpi_ut_get_object_type_name(obj_desc), + *return_desc)); + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_concat_template + * + * PARAMETERS: Operand0 - First source object + * Operand1 - Second source object + * actual_return_desc - Where to place the return object + * walk_state - Current walk state + * + * RETURN: Status + * + * DESCRIPTION: Concatenate two resource templates + * + ******************************************************************************/ + +acpi_status +acpi_ex_concat_template(union acpi_operand_object *operand0, + union acpi_operand_object *operand1, + union acpi_operand_object **actual_return_desc, + struct acpi_walk_state *walk_state) +{ + acpi_status status; + union acpi_operand_object *return_desc; + u8 *new_buf; + u8 *end_tag; + acpi_size length0; + acpi_size length1; + acpi_size new_length; + + ACPI_FUNCTION_TRACE(ex_concat_template); + + /* + * Find the end_tag descriptor in each resource template. + * Note1: returned pointers point TO the end_tag, not past it. + * Note2: zero-length buffers are allowed; treated like one end_tag + */ + + /* Get the length of the first resource template */ + + status = acpi_ut_get_resource_end_tag(operand0, &end_tag); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + length0 = ACPI_PTR_DIFF(end_tag, operand0->buffer.pointer); + + /* Get the length of the second resource template */ + + status = acpi_ut_get_resource_end_tag(operand1, &end_tag); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + length1 = ACPI_PTR_DIFF(end_tag, operand1->buffer.pointer); + + /* Combine both lengths, minimum size will be 2 for end_tag */ + + new_length = length0 + length1 + sizeof(struct aml_resource_end_tag); + + /* Create a new buffer object for the result (with one end_tag) */ + + return_desc = acpi_ut_create_buffer_object(new_length); + if (!return_desc) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* + * Copy the templates to the new buffer, 0 first, then 1 follows. One + * end_tag descriptor is copied from Operand1. + */ + new_buf = return_desc->buffer.pointer; + ACPI_MEMCPY(new_buf, operand0->buffer.pointer, length0); + ACPI_MEMCPY(new_buf + length0, operand1->buffer.pointer, length1); + + /* Insert end_tag and set the checksum to zero, means "ignore checksum" */ + + new_buf[new_length - 1] = 0; + new_buf[new_length - 2] = ACPI_RESOURCE_NAME_END_TAG | 1; + + /* Return the completed resource template */ + + *actual_return_desc = return_desc; + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_do_concatenate + * + * PARAMETERS: Operand0 - First source object + * Operand1 - Second source object + * actual_return_desc - Where to place the return object + * walk_state - Current walk state + * + * RETURN: Status + * + * DESCRIPTION: Concatenate two objects OF THE SAME TYPE. + * + ******************************************************************************/ + +acpi_status +acpi_ex_do_concatenate(union acpi_operand_object *operand0, + union acpi_operand_object *operand1, + union acpi_operand_object **actual_return_desc, + struct acpi_walk_state *walk_state) +{ + union acpi_operand_object *local_operand1 = operand1; + union acpi_operand_object *return_desc; + char *new_buf; + acpi_status status; + + ACPI_FUNCTION_TRACE(ex_do_concatenate); + + /* + * Convert the second operand if necessary. The first operand + * determines the type of the second operand, (See the Data Types + * section of the ACPI specification.) Both object types are + * guaranteed to be either Integer/String/Buffer by the operand + * resolution mechanism. + */ + switch (ACPI_GET_OBJECT_TYPE(operand0)) { + case ACPI_TYPE_INTEGER: + status = + acpi_ex_convert_to_integer(operand1, &local_operand1, 16); + break; + + case ACPI_TYPE_STRING: + status = acpi_ex_convert_to_string(operand1, &local_operand1, + ACPI_IMPLICIT_CONVERT_HEX); + break; + + case ACPI_TYPE_BUFFER: + status = acpi_ex_convert_to_buffer(operand1, &local_operand1); + break; + + default: + ACPI_ERROR((AE_INFO, "Invalid object type: %X", + ACPI_GET_OBJECT_TYPE(operand0))); + status = AE_AML_INTERNAL; + } + + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + /* + * Both operands are now known to be the same object type + * (Both are Integer, String, or Buffer), and we can now perform the + * concatenation. + */ + + /* + * There are three cases to handle: + * + * 1) Two Integers concatenated to produce a new Buffer + * 2) Two Strings concatenated to produce a new String + * 3) Two Buffers concatenated to produce a new Buffer + */ + switch (ACPI_GET_OBJECT_TYPE(operand0)) { + case ACPI_TYPE_INTEGER: + + /* Result of two Integers is a Buffer */ + /* Need enough buffer space for two integers */ + + return_desc = acpi_ut_create_buffer_object((acpi_size) + ACPI_MUL_2 + (acpi_gbl_integer_byte_width)); + if (!return_desc) { + status = AE_NO_MEMORY; + goto cleanup; + } + + new_buf = (char *)return_desc->buffer.pointer; + + /* Copy the first integer, LSB first */ + + ACPI_MEMCPY(new_buf, &operand0->integer.value, + acpi_gbl_integer_byte_width); + + /* Copy the second integer (LSB first) after the first */ + + ACPI_MEMCPY(new_buf + acpi_gbl_integer_byte_width, + &local_operand1->integer.value, + acpi_gbl_integer_byte_width); + break; + + case ACPI_TYPE_STRING: + + /* Result of two Strings is a String */ + + return_desc = acpi_ut_create_string_object(((acpi_size) + operand0->string. + length + + local_operand1-> + string.length)); + if (!return_desc) { + status = AE_NO_MEMORY; + goto cleanup; + } + + new_buf = return_desc->string.pointer; + + /* Concatenate the strings */ + + ACPI_STRCPY(new_buf, operand0->string.pointer); + ACPI_STRCPY(new_buf + operand0->string.length, + local_operand1->string.pointer); + break; + + case ACPI_TYPE_BUFFER: + + /* Result of two Buffers is a Buffer */ + + return_desc = acpi_ut_create_buffer_object(((acpi_size) + operand0->buffer. + length + + local_operand1-> + buffer.length)); + if (!return_desc) { + status = AE_NO_MEMORY; + goto cleanup; + } + + new_buf = (char *)return_desc->buffer.pointer; + + /* Concatenate the buffers */ + + ACPI_MEMCPY(new_buf, operand0->buffer.pointer, + operand0->buffer.length); + ACPI_MEMCPY(new_buf + operand0->buffer.length, + local_operand1->buffer.pointer, + local_operand1->buffer.length); + break; + + default: + + /* Invalid object type, should not happen here */ + + ACPI_ERROR((AE_INFO, "Invalid object type: %X", + ACPI_GET_OBJECT_TYPE(operand0))); + status = AE_AML_INTERNAL; + goto cleanup; + } + + *actual_return_desc = return_desc; + + cleanup: + if (local_operand1 != operand1) { + acpi_ut_remove_reference(local_operand1); + } + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_do_math_op + * + * PARAMETERS: Opcode - AML opcode + * Integer0 - Integer operand #0 + * Integer1 - Integer operand #1 + * + * RETURN: Integer result of the operation + * + * DESCRIPTION: Execute a math AML opcode. The purpose of having all of the + * math functions here is to prevent a lot of pointer dereferencing + * to obtain the operands. + * + ******************************************************************************/ + +acpi_integer +acpi_ex_do_math_op(u16 opcode, acpi_integer integer0, acpi_integer integer1) +{ + + ACPI_FUNCTION_ENTRY(); + + switch (opcode) { + case AML_ADD_OP: /* Add (Integer0, Integer1, Result) */ + + return (integer0 + integer1); + + case AML_BIT_AND_OP: /* And (Integer0, Integer1, Result) */ + + return (integer0 & integer1); + + case AML_BIT_NAND_OP: /* NAnd (Integer0, Integer1, Result) */ + + return (~(integer0 & integer1)); + + case AML_BIT_OR_OP: /* Or (Integer0, Integer1, Result) */ + + return (integer0 | integer1); + + case AML_BIT_NOR_OP: /* NOr (Integer0, Integer1, Result) */ + + return (~(integer0 | integer1)); + + case AML_BIT_XOR_OP: /* XOr (Integer0, Integer1, Result) */ + + return (integer0 ^ integer1); + + case AML_MULTIPLY_OP: /* Multiply (Integer0, Integer1, Result) */ + + return (integer0 * integer1); + + case AML_SHIFT_LEFT_OP: /* shift_left (Operand, shift_count, Result) */ + + /* + * We need to check if the shiftcount is larger than the integer bit + * width since the behavior of this is not well-defined in the C language. + */ + if (integer1 >= acpi_gbl_integer_bit_width) { + return (0); + } + return (integer0 << integer1); + + case AML_SHIFT_RIGHT_OP: /* shift_right (Operand, shift_count, Result) */ + + /* + * We need to check if the shiftcount is larger than the integer bit + * width since the behavior of this is not well-defined in the C language. + */ + if (integer1 >= acpi_gbl_integer_bit_width) { + return (0); + } + return (integer0 >> integer1); + + case AML_SUBTRACT_OP: /* Subtract (Integer0, Integer1, Result) */ + + return (integer0 - integer1); + + default: + + return (0); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_do_logical_numeric_op + * + * PARAMETERS: Opcode - AML opcode + * Integer0 - Integer operand #0 + * Integer1 - Integer operand #1 + * logical_result - TRUE/FALSE result of the operation + * + * RETURN: Status + * + * DESCRIPTION: Execute a logical "Numeric" AML opcode. For these Numeric + * operators (LAnd and LOr), both operands must be integers. + * + * Note: cleanest machine code seems to be produced by the code + * below, rather than using statements of the form: + * Result = (Integer0 && Integer1); + * + ******************************************************************************/ + +acpi_status +acpi_ex_do_logical_numeric_op(u16 opcode, + acpi_integer integer0, + acpi_integer integer1, u8 * logical_result) +{ + acpi_status status = AE_OK; + u8 local_result = FALSE; + + ACPI_FUNCTION_TRACE(ex_do_logical_numeric_op); + + switch (opcode) { + case AML_LAND_OP: /* LAnd (Integer0, Integer1) */ + + if (integer0 && integer1) { + local_result = TRUE; + } + break; + + case AML_LOR_OP: /* LOr (Integer0, Integer1) */ + + if (integer0 || integer1) { + local_result = TRUE; + } + break; + + default: + status = AE_AML_INTERNAL; + break; + } + + /* Return the logical result and status */ + + *logical_result = local_result; + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_do_logical_op + * + * PARAMETERS: Opcode - AML opcode + * Operand0 - operand #0 + * Operand1 - operand #1 + * logical_result - TRUE/FALSE result of the operation + * + * RETURN: Status + * + * DESCRIPTION: Execute a logical AML opcode. The purpose of having all of the + * functions here is to prevent a lot of pointer dereferencing + * to obtain the operands and to simplify the generation of the + * logical value. For the Numeric operators (LAnd and LOr), both + * operands must be integers. For the other logical operators, + * operands can be any combination of Integer/String/Buffer. The + * first operand determines the type to which the second operand + * will be converted. + * + * Note: cleanest machine code seems to be produced by the code + * below, rather than using statements of the form: + * Result = (Operand0 == Operand1); + * + ******************************************************************************/ + +acpi_status +acpi_ex_do_logical_op(u16 opcode, + union acpi_operand_object *operand0, + union acpi_operand_object *operand1, u8 * logical_result) +{ + union acpi_operand_object *local_operand1 = operand1; + acpi_integer integer0; + acpi_integer integer1; + u32 length0; + u32 length1; + acpi_status status = AE_OK; + u8 local_result = FALSE; + int compare; + + ACPI_FUNCTION_TRACE(ex_do_logical_op); + + /* + * Convert the second operand if necessary. The first operand + * determines the type of the second operand, (See the Data Types + * section of the ACPI 3.0+ specification.) Both object types are + * guaranteed to be either Integer/String/Buffer by the operand + * resolution mechanism. + */ + switch (ACPI_GET_OBJECT_TYPE(operand0)) { + case ACPI_TYPE_INTEGER: + status = + acpi_ex_convert_to_integer(operand1, &local_operand1, 16); + break; + + case ACPI_TYPE_STRING: + status = acpi_ex_convert_to_string(operand1, &local_operand1, + ACPI_IMPLICIT_CONVERT_HEX); + break; + + case ACPI_TYPE_BUFFER: + status = acpi_ex_convert_to_buffer(operand1, &local_operand1); + break; + + default: + status = AE_AML_INTERNAL; + break; + } + + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + /* + * Two cases: 1) Both Integers, 2) Both Strings or Buffers + */ + if (ACPI_GET_OBJECT_TYPE(operand0) == ACPI_TYPE_INTEGER) { + /* + * 1) Both operands are of type integer + * Note: local_operand1 may have changed above + */ + integer0 = operand0->integer.value; + integer1 = local_operand1->integer.value; + + switch (opcode) { + case AML_LEQUAL_OP: /* LEqual (Operand0, Operand1) */ + + if (integer0 == integer1) { + local_result = TRUE; + } + break; + + case AML_LGREATER_OP: /* LGreater (Operand0, Operand1) */ + + if (integer0 > integer1) { + local_result = TRUE; + } + break; + + case AML_LLESS_OP: /* LLess (Operand0, Operand1) */ + + if (integer0 < integer1) { + local_result = TRUE; + } + break; + + default: + status = AE_AML_INTERNAL; + break; + } + } else { + /* + * 2) Both operands are Strings or both are Buffers + * Note: Code below takes advantage of common Buffer/String + * object fields. local_operand1 may have changed above. Use + * memcmp to handle nulls in buffers. + */ + length0 = operand0->buffer.length; + length1 = local_operand1->buffer.length; + + /* Lexicographic compare: compare the data bytes */ + + compare = ACPI_MEMCMP(operand0->buffer.pointer, + local_operand1->buffer.pointer, + (length0 > length1) ? length1 : length0); + + switch (opcode) { + case AML_LEQUAL_OP: /* LEqual (Operand0, Operand1) */ + + /* Length and all bytes must be equal */ + + if ((length0 == length1) && (compare == 0)) { + + /* Length and all bytes match ==> TRUE */ + + local_result = TRUE; + } + break; + + case AML_LGREATER_OP: /* LGreater (Operand0, Operand1) */ + + if (compare > 0) { + local_result = TRUE; + goto cleanup; /* TRUE */ + } + if (compare < 0) { + goto cleanup; /* FALSE */ + } + + /* Bytes match (to shortest length), compare lengths */ + + if (length0 > length1) { + local_result = TRUE; + } + break; + + case AML_LLESS_OP: /* LLess (Operand0, Operand1) */ + + if (compare > 0) { + goto cleanup; /* FALSE */ + } + if (compare < 0) { + local_result = TRUE; + goto cleanup; /* TRUE */ + } + + /* Bytes match (to shortest length), compare lengths */ + + if (length0 < length1) { + local_result = TRUE; + } + break; + + default: + status = AE_AML_INTERNAL; + break; + } + } + + cleanup: + + /* New object was created if implicit conversion performed - delete */ + + if (local_operand1 != operand1) { + acpi_ut_remove_reference(local_operand1); + } + + /* Return the logical result and status */ + + *logical_result = local_result; + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/exmutex.c b/drivers/acpi/acpica/exmutex.c new file mode 100644 index 000000000000..f86bcee8d656 --- /dev/null +++ b/drivers/acpi/acpica/exmutex.c @@ -0,0 +1,474 @@ + +/****************************************************************************** + * + * Module Name: exmutex - ASL Mutex Acquire/Release functions + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include + +#define _COMPONENT ACPI_EXECUTER +ACPI_MODULE_NAME("exmutex") + +/* Local prototypes */ +static void +acpi_ex_link_mutex(union acpi_operand_object *obj_desc, + struct acpi_thread_state *thread); + +/******************************************************************************* + * + * FUNCTION: acpi_ex_unlink_mutex + * + * PARAMETERS: obj_desc - The mutex to be unlinked + * + * RETURN: None + * + * DESCRIPTION: Remove a mutex from the "AcquiredMutex" list + * + ******************************************************************************/ + +void acpi_ex_unlink_mutex(union acpi_operand_object *obj_desc) +{ + struct acpi_thread_state *thread = obj_desc->mutex.owner_thread; + + if (!thread) { + return; + } + + /* Doubly linked list */ + + if (obj_desc->mutex.next) { + (obj_desc->mutex.next)->mutex.prev = obj_desc->mutex.prev; + } + + if (obj_desc->mutex.prev) { + (obj_desc->mutex.prev)->mutex.next = obj_desc->mutex.next; + } else { + thread->acquired_mutex_list = obj_desc->mutex.next; + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_link_mutex + * + * PARAMETERS: obj_desc - The mutex to be linked + * Thread - Current executing thread object + * + * RETURN: None + * + * DESCRIPTION: Add a mutex to the "AcquiredMutex" list for this walk + * + ******************************************************************************/ + +static void +acpi_ex_link_mutex(union acpi_operand_object *obj_desc, + struct acpi_thread_state *thread) +{ + union acpi_operand_object *list_head; + + list_head = thread->acquired_mutex_list; + + /* This object will be the first object in the list */ + + obj_desc->mutex.prev = NULL; + obj_desc->mutex.next = list_head; + + /* Update old first object to point back to this object */ + + if (list_head) { + list_head->mutex.prev = obj_desc; + } + + /* Update list head */ + + thread->acquired_mutex_list = obj_desc; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_acquire_mutex_object + * + * PARAMETERS: time_desc - Timeout in milliseconds + * obj_desc - Mutex object + * Thread - Current thread state + * + * RETURN: Status + * + * DESCRIPTION: Acquire an AML mutex, low-level interface. Provides a common + * path that supports multiple acquires by the same thread. + * + * MUTEX: Interpreter must be locked + * + * NOTE: This interface is called from three places: + * 1) From acpi_ex_acquire_mutex, via an AML Acquire() operator + * 2) From acpi_ex_acquire_global_lock when an AML Field access requires the + * global lock + * 3) From the external interface, acpi_acquire_global_lock + * + ******************************************************************************/ + +acpi_status +acpi_ex_acquire_mutex_object(u16 timeout, + union acpi_operand_object *obj_desc, + acpi_thread_id thread_id) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE_PTR(ex_acquire_mutex_object, obj_desc); + + if (!obj_desc) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* Support for multiple acquires by the owning thread */ + + if (obj_desc->mutex.thread_id == thread_id) { + /* + * The mutex is already owned by this thread, just increment the + * acquisition depth + */ + obj_desc->mutex.acquisition_depth++; + return_ACPI_STATUS(AE_OK); + } + + /* Acquire the mutex, wait if necessary. Special case for Global Lock */ + + if (obj_desc == acpi_gbl_global_lock_mutex) { + status = acpi_ev_acquire_global_lock(timeout); + } else { + status = acpi_ex_system_wait_mutex(obj_desc->mutex.os_mutex, + timeout); + } + + if (ACPI_FAILURE(status)) { + + /* Includes failure from a timeout on time_desc */ + + return_ACPI_STATUS(status); + } + + /* Acquired the mutex: update mutex object */ + + obj_desc->mutex.thread_id = thread_id; + obj_desc->mutex.acquisition_depth = 1; + obj_desc->mutex.original_sync_level = 0; + obj_desc->mutex.owner_thread = NULL; /* Used only for AML Acquire() */ + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_acquire_mutex + * + * PARAMETERS: time_desc - Timeout integer + * obj_desc - Mutex object + * walk_state - Current method execution state + * + * RETURN: Status + * + * DESCRIPTION: Acquire an AML mutex + * + ******************************************************************************/ + +acpi_status +acpi_ex_acquire_mutex(union acpi_operand_object *time_desc, + union acpi_operand_object *obj_desc, + struct acpi_walk_state *walk_state) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE_PTR(ex_acquire_mutex, obj_desc); + + if (!obj_desc) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* Must have a valid thread ID */ + + if (!walk_state->thread) { + ACPI_ERROR((AE_INFO, + "Cannot acquire Mutex [%4.4s], null thread info", + acpi_ut_get_node_name(obj_desc->mutex.node))); + return_ACPI_STATUS(AE_AML_INTERNAL); + } + + /* + * Current sync level must be less than or equal to the sync level of the + * mutex. This mechanism provides some deadlock prevention + */ + if (walk_state->thread->current_sync_level > obj_desc->mutex.sync_level) { + ACPI_ERROR((AE_INFO, + "Cannot acquire Mutex [%4.4s], current SyncLevel is too large (%d)", + acpi_ut_get_node_name(obj_desc->mutex.node), + walk_state->thread->current_sync_level)); + return_ACPI_STATUS(AE_AML_MUTEX_ORDER); + } + + status = acpi_ex_acquire_mutex_object((u16) time_desc->integer.value, + obj_desc, + walk_state->thread->thread_id); + if (ACPI_SUCCESS(status) && obj_desc->mutex.acquisition_depth == 1) { + + /* Save Thread object, original/current sync levels */ + + obj_desc->mutex.owner_thread = walk_state->thread; + obj_desc->mutex.original_sync_level = + walk_state->thread->current_sync_level; + walk_state->thread->current_sync_level = + obj_desc->mutex.sync_level; + + /* Link the mutex to the current thread for force-unlock at method exit */ + + acpi_ex_link_mutex(obj_desc, walk_state->thread); + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_release_mutex_object + * + * PARAMETERS: obj_desc - The object descriptor for this op + * + * RETURN: Status + * + * DESCRIPTION: Release a previously acquired Mutex, low level interface. + * Provides a common path that supports multiple releases (after + * previous multiple acquires) by the same thread. + * + * MUTEX: Interpreter must be locked + * + * NOTE: This interface is called from three places: + * 1) From acpi_ex_release_mutex, via an AML Acquire() operator + * 2) From acpi_ex_release_global_lock when an AML Field access requires the + * global lock + * 3) From the external interface, acpi_release_global_lock + * + ******************************************************************************/ + +acpi_status acpi_ex_release_mutex_object(union acpi_operand_object *obj_desc) +{ + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE(ex_release_mutex_object); + + if (obj_desc->mutex.acquisition_depth == 0) { + return (AE_NOT_ACQUIRED); + } + + /* Match multiple Acquires with multiple Releases */ + + obj_desc->mutex.acquisition_depth--; + if (obj_desc->mutex.acquisition_depth != 0) { + + /* Just decrement the depth and return */ + + return_ACPI_STATUS(AE_OK); + } + + if (obj_desc->mutex.owner_thread) { + + /* Unlink the mutex from the owner's list */ + + acpi_ex_unlink_mutex(obj_desc); + obj_desc->mutex.owner_thread = NULL; + } + + /* Release the mutex, special case for Global Lock */ + + if (obj_desc == acpi_gbl_global_lock_mutex) { + status = acpi_ev_release_global_lock(); + } else { + acpi_os_release_mutex(obj_desc->mutex.os_mutex); + } + + /* Clear mutex info */ + + obj_desc->mutex.thread_id = NULL; + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_release_mutex + * + * PARAMETERS: obj_desc - The object descriptor for this op + * walk_state - Current method execution state + * + * RETURN: Status + * + * DESCRIPTION: Release a previously acquired Mutex. + * + ******************************************************************************/ + +acpi_status +acpi_ex_release_mutex(union acpi_operand_object *obj_desc, + struct acpi_walk_state *walk_state) +{ + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE(ex_release_mutex); + + if (!obj_desc) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* The mutex must have been previously acquired in order to release it */ + + if (!obj_desc->mutex.owner_thread) { + ACPI_ERROR((AE_INFO, + "Cannot release Mutex [%4.4s], not acquired", + acpi_ut_get_node_name(obj_desc->mutex.node))); + return_ACPI_STATUS(AE_AML_MUTEX_NOT_ACQUIRED); + } + + /* + * The Mutex is owned, but this thread must be the owner. + * Special case for Global Lock, any thread can release + */ + if ((obj_desc->mutex.owner_thread->thread_id != + walk_state->thread->thread_id) + && (obj_desc != acpi_gbl_global_lock_mutex)) { + ACPI_ERROR((AE_INFO, + "Thread %lX cannot release Mutex [%4.4s] acquired by thread %lX", + (unsigned long)walk_state->thread->thread_id, + acpi_ut_get_node_name(obj_desc->mutex.node), + (unsigned long)obj_desc->mutex.owner_thread-> + thread_id)); + return_ACPI_STATUS(AE_AML_NOT_OWNER); + } + + /* Must have a valid thread ID */ + + if (!walk_state->thread) { + ACPI_ERROR((AE_INFO, + "Cannot release Mutex [%4.4s], null thread info", + acpi_ut_get_node_name(obj_desc->mutex.node))); + return_ACPI_STATUS(AE_AML_INTERNAL); + } + + /* + * The sync level of the mutex must be less than or equal to the current + * sync level + */ + if (obj_desc->mutex.sync_level > walk_state->thread->current_sync_level) { + ACPI_ERROR((AE_INFO, + "Cannot release Mutex [%4.4s], SyncLevel mismatch: mutex %d current %d", + acpi_ut_get_node_name(obj_desc->mutex.node), + obj_desc->mutex.sync_level, + walk_state->thread->current_sync_level)); + return_ACPI_STATUS(AE_AML_MUTEX_ORDER); + } + + status = acpi_ex_release_mutex_object(obj_desc); + + if (obj_desc->mutex.acquisition_depth == 0) { + + /* Restore the original sync_level */ + + walk_state->thread->current_sync_level = + obj_desc->mutex.original_sync_level; + } + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_release_all_mutexes + * + * PARAMETERS: Thread - Current executing thread object + * + * RETURN: Status + * + * DESCRIPTION: Release all mutexes held by this thread + * + * NOTE: This function is called as the thread is exiting the interpreter. + * Mutexes are not released when an individual control method is exited, but + * only when the parent thread actually exits the interpreter. This allows one + * method to acquire a mutex, and a different method to release it, as long as + * this is performed underneath a single parent control method. + * + ******************************************************************************/ + +void acpi_ex_release_all_mutexes(struct acpi_thread_state *thread) +{ + union acpi_operand_object *next = thread->acquired_mutex_list; + union acpi_operand_object *obj_desc; + + ACPI_FUNCTION_ENTRY(); + + /* Traverse the list of owned mutexes, releasing each one */ + + while (next) { + obj_desc = next; + next = obj_desc->mutex.next; + + obj_desc->mutex.prev = NULL; + obj_desc->mutex.next = NULL; + obj_desc->mutex.acquisition_depth = 0; + + /* Release the mutex, special case for Global Lock */ + + if (obj_desc == acpi_gbl_global_lock_mutex) { + + /* Ignore errors */ + + (void)acpi_ev_release_global_lock(); + } else { + acpi_os_release_mutex(obj_desc->mutex.os_mutex); + } + + /* Mark mutex unowned */ + + obj_desc->mutex.owner_thread = NULL; + obj_desc->mutex.thread_id = NULL; + + /* Update Thread sync_level (Last mutex is the important one) */ + + thread->current_sync_level = + obj_desc->mutex.original_sync_level; + } +} diff --git a/drivers/acpi/acpica/exnames.c b/drivers/acpi/acpica/exnames.c new file mode 100644 index 000000000000..12d3513531e1 --- /dev/null +++ b/drivers/acpi/acpica/exnames.c @@ -0,0 +1,436 @@ + +/****************************************************************************** + * + * Module Name: exnames - interpreter/scanner name load/execute + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include + +#define _COMPONENT ACPI_EXECUTER +ACPI_MODULE_NAME("exnames") + +/* Local prototypes */ +static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs); + +static acpi_status +acpi_ex_name_segment(u8 ** in_aml_address, char *name_string); + +/******************************************************************************* + * + * FUNCTION: acpi_ex_allocate_name_string + * + * PARAMETERS: prefix_count - Count of parent levels. Special cases: + * (-1)==root, 0==none + * num_name_segs - count of 4-character name segments + * + * RETURN: A pointer to the allocated string segment. This segment must + * be deleted by the caller. + * + * DESCRIPTION: Allocate a buffer for a name string. Ensure allocated name + * string is long enough, and set up prefix if any. + * + ******************************************************************************/ + +static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs) +{ + char *temp_ptr; + char *name_string; + u32 size_needed; + + ACPI_FUNCTION_TRACE(ex_allocate_name_string); + + /* + * Allow room for all \ and ^ prefixes, all segments and a multi_name_prefix. + * Also, one byte for the null terminator. + * This may actually be somewhat longer than needed. + */ + if (prefix_count == ACPI_UINT32_MAX) { + + /* Special case for root */ + + size_needed = 1 + (ACPI_NAME_SIZE * num_name_segs) + 2 + 1; + } else { + size_needed = + prefix_count + (ACPI_NAME_SIZE * num_name_segs) + 2 + 1; + } + + /* + * Allocate a buffer for the name. + * This buffer must be deleted by the caller! + */ + name_string = ACPI_ALLOCATE(size_needed); + if (!name_string) { + ACPI_ERROR((AE_INFO, + "Could not allocate size %d", size_needed)); + return_PTR(NULL); + } + + temp_ptr = name_string; + + /* Set up Root or Parent prefixes if needed */ + + if (prefix_count == ACPI_UINT32_MAX) { + *temp_ptr++ = AML_ROOT_PREFIX; + } else { + while (prefix_count--) { + *temp_ptr++ = AML_PARENT_PREFIX; + } + } + + /* Set up Dual or Multi prefixes if needed */ + + if (num_name_segs > 2) { + + /* Set up multi prefixes */ + + *temp_ptr++ = AML_MULTI_NAME_PREFIX_OP; + *temp_ptr++ = (char)num_name_segs; + } else if (2 == num_name_segs) { + + /* Set up dual prefixes */ + + *temp_ptr++ = AML_DUAL_NAME_PREFIX; + } + + /* + * Terminate string following prefixes. acpi_ex_name_segment() will + * append the segment(s) + */ + *temp_ptr = 0; + + return_PTR(name_string); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_name_segment + * + * PARAMETERS: in_aml_address - Pointer to the name in the AML code + * name_string - Where to return the name. The name is appended + * to any existing string to form a namepath + * + * RETURN: Status + * + * DESCRIPTION: Extract an ACPI name (4 bytes) from the AML byte stream + * + ******************************************************************************/ + +static acpi_status acpi_ex_name_segment(u8 ** in_aml_address, char *name_string) +{ + char *aml_address = (void *)*in_aml_address; + acpi_status status = AE_OK; + u32 index; + char char_buf[5]; + + ACPI_FUNCTION_TRACE(ex_name_segment); + + /* + * If first character is a digit, then we know that we aren't looking at a + * valid name segment + */ + char_buf[0] = *aml_address; + + if ('0' <= char_buf[0] && char_buf[0] <= '9') { + ACPI_ERROR((AE_INFO, "Invalid leading digit: %c", char_buf[0])); + return_ACPI_STATUS(AE_CTRL_PENDING); + } + + ACPI_DEBUG_PRINT((ACPI_DB_LOAD, "Bytes from stream:\n")); + + for (index = 0; (index < ACPI_NAME_SIZE) + && (acpi_ut_valid_acpi_char(*aml_address, 0)); index++) { + char_buf[index] = *aml_address++; + ACPI_DEBUG_PRINT((ACPI_DB_LOAD, "%c\n", char_buf[index])); + } + + /* Valid name segment */ + + if (index == 4) { + + /* Found 4 valid characters */ + + char_buf[4] = '\0'; + + if (name_string) { + ACPI_STRCAT(name_string, char_buf); + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, + "Appended to - %s\n", name_string)); + } else { + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, + "No Name string - %s\n", char_buf)); + } + } else if (index == 0) { + /* + * First character was not a valid name character, + * so we are looking at something other than a name. + */ + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Leading character is not alpha: %02Xh (not a name)\n", + char_buf[0])); + status = AE_CTRL_PENDING; + } else { + /* + * Segment started with one or more valid characters, but fewer than + * the required 4 + */ + status = AE_AML_BAD_NAME; + ACPI_ERROR((AE_INFO, + "Bad character %02x in name, at %p", + *aml_address, aml_address)); + } + + *in_aml_address = ACPI_CAST_PTR(u8, aml_address); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_get_name_string + * + * PARAMETERS: data_type - Object type to be associated with this + * name + * in_aml_address - Pointer to the namestring in the AML code + * out_name_string - Where the namestring is returned + * out_name_length - Length of the returned string + * + * RETURN: Status, namestring and length + * + * DESCRIPTION: Extract a full namepath from the AML byte stream, + * including any prefixes. + * + ******************************************************************************/ + +acpi_status +acpi_ex_get_name_string(acpi_object_type data_type, + u8 * in_aml_address, + char **out_name_string, u32 * out_name_length) +{ + acpi_status status = AE_OK; + u8 *aml_address = in_aml_address; + char *name_string = NULL; + u32 num_segments; + u32 prefix_count = 0; + u8 has_prefix = FALSE; + + ACPI_FUNCTION_TRACE_PTR(ex_get_name_string, aml_address); + + if (ACPI_TYPE_LOCAL_REGION_FIELD == data_type || + ACPI_TYPE_LOCAL_BANK_FIELD == data_type || + ACPI_TYPE_LOCAL_INDEX_FIELD == data_type) { + + /* Disallow prefixes for types associated with field_unit names */ + + name_string = acpi_ex_allocate_name_string(0, 1); + if (!name_string) { + status = AE_NO_MEMORY; + } else { + status = + acpi_ex_name_segment(&aml_address, name_string); + } + } else { + /* + * data_type is not a field name. + * Examine first character of name for root or parent prefix operators + */ + switch (*aml_address) { + case AML_ROOT_PREFIX: + + ACPI_DEBUG_PRINT((ACPI_DB_LOAD, + "RootPrefix(\\) at %p\n", + aml_address)); + + /* + * Remember that we have a root_prefix -- + * see comment in acpi_ex_allocate_name_string() + */ + aml_address++; + prefix_count = ACPI_UINT32_MAX; + has_prefix = TRUE; + break; + + case AML_PARENT_PREFIX: + + /* Increment past possibly multiple parent prefixes */ + + do { + ACPI_DEBUG_PRINT((ACPI_DB_LOAD, + "ParentPrefix (^) at %p\n", + aml_address)); + + aml_address++; + prefix_count++; + + } while (*aml_address == AML_PARENT_PREFIX); + + has_prefix = TRUE; + break; + + default: + + /* Not a prefix character */ + + break; + } + + /* Examine first character of name for name segment prefix operator */ + + switch (*aml_address) { + case AML_DUAL_NAME_PREFIX: + + ACPI_DEBUG_PRINT((ACPI_DB_LOAD, + "DualNamePrefix at %p\n", + aml_address)); + + aml_address++; + name_string = + acpi_ex_allocate_name_string(prefix_count, 2); + if (!name_string) { + status = AE_NO_MEMORY; + break; + } + + /* Indicate that we processed a prefix */ + + has_prefix = TRUE; + + status = + acpi_ex_name_segment(&aml_address, name_string); + if (ACPI_SUCCESS(status)) { + status = + acpi_ex_name_segment(&aml_address, + name_string); + } + break; + + case AML_MULTI_NAME_PREFIX_OP: + + ACPI_DEBUG_PRINT((ACPI_DB_LOAD, + "MultiNamePrefix at %p\n", + aml_address)); + + /* Fetch count of segments remaining in name path */ + + aml_address++; + num_segments = *aml_address; + + name_string = + acpi_ex_allocate_name_string(prefix_count, + num_segments); + if (!name_string) { + status = AE_NO_MEMORY; + break; + } + + /* Indicate that we processed a prefix */ + + aml_address++; + has_prefix = TRUE; + + while (num_segments && + (status = + acpi_ex_name_segment(&aml_address, + name_string)) == AE_OK) { + num_segments--; + } + + break; + + case 0: + + /* null_name valid as of 8-12-98 ASL/AML Grammar Update */ + + if (prefix_count == ACPI_UINT32_MAX) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "NameSeg is \"\\\" followed by NULL\n")); + } + + /* Consume the NULL byte */ + + aml_address++; + name_string = + acpi_ex_allocate_name_string(prefix_count, 0); + if (!name_string) { + status = AE_NO_MEMORY; + break; + } + + break; + + default: + + /* Name segment string */ + + name_string = + acpi_ex_allocate_name_string(prefix_count, 1); + if (!name_string) { + status = AE_NO_MEMORY; + break; + } + + status = + acpi_ex_name_segment(&aml_address, name_string); + break; + } + } + + if (AE_CTRL_PENDING == status && has_prefix) { + + /* Ran out of segments after processing a prefix */ + + ACPI_ERROR((AE_INFO, "Malformed Name at %p", name_string)); + status = AE_AML_BAD_NAME; + } + + if (ACPI_FAILURE(status)) { + if (name_string) { + ACPI_FREE(name_string); + } + return_ACPI_STATUS(status); + } + + *out_name_string = name_string; + *out_name_length = (u32) (aml_address - in_aml_address); + + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/exoparg1.c b/drivers/acpi/acpica/exoparg1.c new file mode 100644 index 000000000000..52d78b8622be --- /dev/null +++ b/drivers/acpi/acpica/exoparg1.c @@ -0,0 +1,1050 @@ + +/****************************************************************************** + * + * Module Name: exoparg1 - AML execution - opcodes with 1 argument + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_EXECUTER +ACPI_MODULE_NAME("exoparg1") + +/*! + * Naming convention for AML interpreter execution routines. + * + * The routines that begin execution of AML opcodes are named with a common + * convention based upon the number of arguments, the number of target operands, + * and whether or not a value is returned: + * + * AcpiExOpcode_xA_yT_zR + * + * Where: + * + * xA - ARGUMENTS: The number of arguments (input operands) that are + * required for this opcode type (0 through 6 args). + * yT - TARGETS: The number of targets (output operands) that are required + * for this opcode type (0, 1, or 2 targets). + * zR - RETURN VALUE: Indicates whether this opcode type returns a value + * as the function return (0 or 1). + * + * The AcpiExOpcode* functions are called via the Dispatcher component with + * fully resolved operands. +!*/ +/******************************************************************************* + * + * FUNCTION: acpi_ex_opcode_0A_0T_1R + * + * PARAMETERS: walk_state - Current state (contains AML opcode) + * + * RETURN: Status + * + * DESCRIPTION: Execute operator with no operands, one return value + * + ******************************************************************************/ +acpi_status acpi_ex_opcode_0A_0T_1R(struct acpi_walk_state *walk_state) +{ + acpi_status status = AE_OK; + union acpi_operand_object *return_desc = NULL; + + ACPI_FUNCTION_TRACE_STR(ex_opcode_0A_0T_1R, + acpi_ps_get_opcode_name(walk_state->opcode)); + + /* Examine the AML opcode */ + + switch (walk_state->opcode) { + case AML_TIMER_OP: /* Timer () */ + + /* Create a return object of type Integer */ + + return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + if (!return_desc) { + status = AE_NO_MEMORY; + goto cleanup; + } + return_desc->integer.value = acpi_os_get_timer(); + break; + + default: /* Unknown opcode */ + + ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", + walk_state->opcode)); + status = AE_AML_BAD_OPCODE; + break; + } + + cleanup: + + /* Delete return object on error */ + + if ((ACPI_FAILURE(status)) || walk_state->result_obj) { + acpi_ut_remove_reference(return_desc); + walk_state->result_obj = NULL; + } else { + /* Save the return value */ + + walk_state->result_obj = return_desc; + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_opcode_1A_0T_0R + * + * PARAMETERS: walk_state - Current state (contains AML opcode) + * + * RETURN: Status + * + * DESCRIPTION: Execute Type 1 monadic operator with numeric operand on + * object stack + * + ******************************************************************************/ + +acpi_status acpi_ex_opcode_1A_0T_0R(struct acpi_walk_state *walk_state) +{ + union acpi_operand_object **operand = &walk_state->operands[0]; + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_0T_0R, + acpi_ps_get_opcode_name(walk_state->opcode)); + + /* Examine the AML opcode */ + + switch (walk_state->opcode) { + case AML_RELEASE_OP: /* Release (mutex_object) */ + + status = acpi_ex_release_mutex(operand[0], walk_state); + break; + + case AML_RESET_OP: /* Reset (event_object) */ + + status = acpi_ex_system_reset_event(operand[0]); + break; + + case AML_SIGNAL_OP: /* Signal (event_object) */ + + status = acpi_ex_system_signal_event(operand[0]); + break; + + case AML_SLEEP_OP: /* Sleep (msec_time) */ + + status = acpi_ex_system_do_suspend(operand[0]->integer.value); + break; + + case AML_STALL_OP: /* Stall (usec_time) */ + + status = + acpi_ex_system_do_stall((u32) operand[0]->integer.value); + break; + + case AML_UNLOAD_OP: /* Unload (Handle) */ + + status = acpi_ex_unload_table(operand[0]); + break; + + default: /* Unknown opcode */ + + ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", + walk_state->opcode)); + status = AE_AML_BAD_OPCODE; + break; + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_opcode_1A_1T_0R + * + * PARAMETERS: walk_state - Current state (contains AML opcode) + * + * RETURN: Status + * + * DESCRIPTION: Execute opcode with one argument, one target, and no + * return value. + * + ******************************************************************************/ + +acpi_status acpi_ex_opcode_1A_1T_0R(struct acpi_walk_state *walk_state) +{ + acpi_status status = AE_OK; + union acpi_operand_object **operand = &walk_state->operands[0]; + + ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_1T_0R, + acpi_ps_get_opcode_name(walk_state->opcode)); + + /* Examine the AML opcode */ + + switch (walk_state->opcode) { + case AML_LOAD_OP: + + status = acpi_ex_load_op(operand[0], operand[1], walk_state); + break; + + default: /* Unknown opcode */ + + ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", + walk_state->opcode)); + status = AE_AML_BAD_OPCODE; + goto cleanup; + } + + cleanup: + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_opcode_1A_1T_1R + * + * PARAMETERS: walk_state - Current state (contains AML opcode) + * + * RETURN: Status + * + * DESCRIPTION: Execute opcode with one argument, one target, and a + * return value. + * + ******************************************************************************/ + +acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) +{ + acpi_status status = AE_OK; + union acpi_operand_object **operand = &walk_state->operands[0]; + union acpi_operand_object *return_desc = NULL; + union acpi_operand_object *return_desc2 = NULL; + u32 temp32; + u32 i; + acpi_integer power_of_ten; + acpi_integer digit; + + ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_1T_1R, + acpi_ps_get_opcode_name(walk_state->opcode)); + + /* Examine the AML opcode */ + + switch (walk_state->opcode) { + case AML_BIT_NOT_OP: + case AML_FIND_SET_LEFT_BIT_OP: + case AML_FIND_SET_RIGHT_BIT_OP: + case AML_FROM_BCD_OP: + case AML_TO_BCD_OP: + case AML_COND_REF_OF_OP: + + /* Create a return object of type Integer for these opcodes */ + + return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + if (!return_desc) { + status = AE_NO_MEMORY; + goto cleanup; + } + + switch (walk_state->opcode) { + case AML_BIT_NOT_OP: /* Not (Operand, Result) */ + + return_desc->integer.value = ~operand[0]->integer.value; + break; + + case AML_FIND_SET_LEFT_BIT_OP: /* find_set_left_bit (Operand, Result) */ + + return_desc->integer.value = operand[0]->integer.value; + + /* + * Acpi specification describes Integer type as a little + * endian unsigned value, so this boundary condition is valid. + */ + for (temp32 = 0; return_desc->integer.value && + temp32 < ACPI_INTEGER_BIT_SIZE; ++temp32) { + return_desc->integer.value >>= 1; + } + + return_desc->integer.value = temp32; + break; + + case AML_FIND_SET_RIGHT_BIT_OP: /* find_set_right_bit (Operand, Result) */ + + return_desc->integer.value = operand[0]->integer.value; + + /* + * The Acpi specification describes Integer type as a little + * endian unsigned value, so this boundary condition is valid. + */ + for (temp32 = 0; return_desc->integer.value && + temp32 < ACPI_INTEGER_BIT_SIZE; ++temp32) { + return_desc->integer.value <<= 1; + } + + /* Since the bit position is one-based, subtract from 33 (65) */ + + return_desc->integer.value = + temp32 == + 0 ? 0 : (ACPI_INTEGER_BIT_SIZE + 1) - temp32; + break; + + case AML_FROM_BCD_OP: /* from_bcd (BCDValue, Result) */ + + /* + * The 64-bit ACPI integer can hold 16 4-bit BCD characters + * (if table is 32-bit, integer can hold 8 BCD characters) + * Convert each 4-bit BCD value + */ + power_of_ten = 1; + return_desc->integer.value = 0; + digit = operand[0]->integer.value; + + /* Convert each BCD digit (each is one nybble wide) */ + + for (i = 0; + (i < acpi_gbl_integer_nybble_width) && (digit > 0); + i++) { + + /* Get the least significant 4-bit BCD digit */ + + temp32 = ((u32) digit) & 0xF; + + /* Check the range of the digit */ + + if (temp32 > 9) { + ACPI_ERROR((AE_INFO, + "BCD digit too large (not decimal): 0x%X", + temp32)); + + status = AE_AML_NUMERIC_OVERFLOW; + goto cleanup; + } + + /* Sum the digit into the result with the current power of 10 */ + + return_desc->integer.value += + (((acpi_integer) temp32) * power_of_ten); + + /* Shift to next BCD digit */ + + digit >>= 4; + + /* Next power of 10 */ + + power_of_ten *= 10; + } + break; + + case AML_TO_BCD_OP: /* to_bcd (Operand, Result) */ + + return_desc->integer.value = 0; + digit = operand[0]->integer.value; + + /* Each BCD digit is one nybble wide */ + + for (i = 0; + (i < acpi_gbl_integer_nybble_width) && (digit > 0); + i++) { + (void)acpi_ut_short_divide(digit, 10, &digit, + &temp32); + + /* + * Insert the BCD digit that resides in the + * remainder from above + */ + return_desc->integer.value |= + (((acpi_integer) temp32) << ACPI_MUL_4(i)); + } + + /* Overflow if there is any data left in Digit */ + + if (digit > 0) { + ACPI_ERROR((AE_INFO, + "Integer too large to convert to BCD: %8.8X%8.8X", + ACPI_FORMAT_UINT64(operand[0]-> + integer.value))); + status = AE_AML_NUMERIC_OVERFLOW; + goto cleanup; + } + break; + + case AML_COND_REF_OF_OP: /* cond_ref_of (source_object, Result) */ + + /* + * This op is a little strange because the internal return value is + * different than the return value stored in the result descriptor + * (There are really two return values) + */ + if ((struct acpi_namespace_node *)operand[0] == + acpi_gbl_root_node) { + /* + * This means that the object does not exist in the namespace, + * return FALSE + */ + return_desc->integer.value = 0; + goto cleanup; + } + + /* Get the object reference, store it, and remove our reference */ + + status = acpi_ex_get_object_reference(operand[0], + &return_desc2, + walk_state); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + status = + acpi_ex_store(return_desc2, operand[1], walk_state); + acpi_ut_remove_reference(return_desc2); + + /* The object exists in the namespace, return TRUE */ + + return_desc->integer.value = ACPI_INTEGER_MAX; + goto cleanup; + + default: + /* No other opcodes get here */ + break; + } + break; + + case AML_STORE_OP: /* Store (Source, Target) */ + + /* + * A store operand is typically a number, string, buffer or lvalue + * Be careful about deleting the source object, + * since the object itself may have been stored. + */ + status = acpi_ex_store(operand[0], operand[1], walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* It is possible that the Store already produced a return object */ + + if (!walk_state->result_obj) { + /* + * Normally, we would remove a reference on the Operand[0] + * parameter; But since it is being used as the internal return + * object (meaning we would normally increment it), the two + * cancel out, and we simply don't do anything. + */ + walk_state->result_obj = operand[0]; + walk_state->operands[0] = NULL; /* Prevent deletion */ + } + return_ACPI_STATUS(status); + + /* + * ACPI 2.0 Opcodes + */ + case AML_COPY_OP: /* Copy (Source, Target) */ + + status = + acpi_ut_copy_iobject_to_iobject(operand[0], &return_desc, + walk_state); + break; + + case AML_TO_DECSTRING_OP: /* to_decimal_string (Data, Result) */ + + status = acpi_ex_convert_to_string(operand[0], &return_desc, + ACPI_EXPLICIT_CONVERT_DECIMAL); + if (return_desc == operand[0]) { + + /* No conversion performed, add ref to handle return value */ + acpi_ut_add_reference(return_desc); + } + break; + + case AML_TO_HEXSTRING_OP: /* to_hex_string (Data, Result) */ + + status = acpi_ex_convert_to_string(operand[0], &return_desc, + ACPI_EXPLICIT_CONVERT_HEX); + if (return_desc == operand[0]) { + + /* No conversion performed, add ref to handle return value */ + acpi_ut_add_reference(return_desc); + } + break; + + case AML_TO_BUFFER_OP: /* to_buffer (Data, Result) */ + + status = acpi_ex_convert_to_buffer(operand[0], &return_desc); + if (return_desc == operand[0]) { + + /* No conversion performed, add ref to handle return value */ + acpi_ut_add_reference(return_desc); + } + break; + + case AML_TO_INTEGER_OP: /* to_integer (Data, Result) */ + + status = acpi_ex_convert_to_integer(operand[0], &return_desc, + ACPI_ANY_BASE); + if (return_desc == operand[0]) { + + /* No conversion performed, add ref to handle return value */ + acpi_ut_add_reference(return_desc); + } + break; + + case AML_SHIFT_LEFT_BIT_OP: /* shift_left_bit (Source, bit_num) */ + case AML_SHIFT_RIGHT_BIT_OP: /* shift_right_bit (Source, bit_num) */ + + /* These are two obsolete opcodes */ + + ACPI_ERROR((AE_INFO, + "%s is obsolete and not implemented", + acpi_ps_get_opcode_name(walk_state->opcode))); + status = AE_SUPPORT; + goto cleanup; + + default: /* Unknown opcode */ + + ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", + walk_state->opcode)); + status = AE_AML_BAD_OPCODE; + goto cleanup; + } + + if (ACPI_SUCCESS(status)) { + + /* Store the return value computed above into the target object */ + + status = acpi_ex_store(return_desc, operand[1], walk_state); + } + + cleanup: + + /* Delete return object on error */ + + if (ACPI_FAILURE(status)) { + acpi_ut_remove_reference(return_desc); + } + + /* Save return object on success */ + + else if (!walk_state->result_obj) { + walk_state->result_obj = return_desc; + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_opcode_1A_0T_1R + * + * PARAMETERS: walk_state - Current state (contains AML opcode) + * + * RETURN: Status + * + * DESCRIPTION: Execute opcode with one argument, no target, and a return value + * + ******************************************************************************/ + +acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) +{ + union acpi_operand_object **operand = &walk_state->operands[0]; + union acpi_operand_object *temp_desc; + union acpi_operand_object *return_desc = NULL; + acpi_status status = AE_OK; + u32 type; + acpi_integer value; + + ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_0T_1R, + acpi_ps_get_opcode_name(walk_state->opcode)); + + /* Examine the AML opcode */ + + switch (walk_state->opcode) { + case AML_LNOT_OP: /* LNot (Operand) */ + + return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + if (!return_desc) { + status = AE_NO_MEMORY; + goto cleanup; + } + + /* + * Set result to ONES (TRUE) if Value == 0. Note: + * return_desc->Integer.Value is initially == 0 (FALSE) from above. + */ + if (!operand[0]->integer.value) { + return_desc->integer.value = ACPI_INTEGER_MAX; + } + break; + + case AML_DECREMENT_OP: /* Decrement (Operand) */ + case AML_INCREMENT_OP: /* Increment (Operand) */ + + /* + * Create a new integer. Can't just get the base integer and + * increment it because it may be an Arg or Field. + */ + return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + if (!return_desc) { + status = AE_NO_MEMORY; + goto cleanup; + } + + /* + * Since we are expecting a Reference operand, it can be either a + * NS Node or an internal object. + */ + temp_desc = operand[0]; + if (ACPI_GET_DESCRIPTOR_TYPE(temp_desc) == + ACPI_DESC_TYPE_OPERAND) { + + /* Internal reference object - prevent deletion */ + + acpi_ut_add_reference(temp_desc); + } + + /* + * Convert the Reference operand to an Integer (This removes a + * reference on the Operand[0] object) + * + * NOTE: We use LNOT_OP here in order to force resolution of the + * reference operand to an actual integer. + */ + status = + acpi_ex_resolve_operands(AML_LNOT_OP, &temp_desc, + walk_state); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "While resolving operands for [%s]", + acpi_ps_get_opcode_name(walk_state-> + opcode))); + + goto cleanup; + } + + /* + * temp_desc is now guaranteed to be an Integer object -- + * Perform the actual increment or decrement + */ + if (walk_state->opcode == AML_INCREMENT_OP) { + return_desc->integer.value = + temp_desc->integer.value + 1; + } else { + return_desc->integer.value = + temp_desc->integer.value - 1; + } + + /* Finished with this Integer object */ + + acpi_ut_remove_reference(temp_desc); + + /* + * Store the result back (indirectly) through the original + * Reference object + */ + status = acpi_ex_store(return_desc, operand[0], walk_state); + break; + + case AML_TYPE_OP: /* object_type (source_object) */ + + /* + * Note: The operand is not resolved at this point because we want to + * get the associated object, not its value. For example, we don't + * want to resolve a field_unit to its value, we want the actual + * field_unit object. + */ + + /* Get the type of the base object */ + + status = + acpi_ex_resolve_multiple(walk_state, operand[0], &type, + NULL); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + /* Allocate a descriptor to hold the type. */ + + return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + if (!return_desc) { + status = AE_NO_MEMORY; + goto cleanup; + } + + return_desc->integer.value = type; + break; + + case AML_SIZE_OF_OP: /* size_of (source_object) */ + + /* + * Note: The operand is not resolved at this point because we want to + * get the associated object, not its value. + */ + + /* Get the base object */ + + status = acpi_ex_resolve_multiple(walk_state, + operand[0], &type, + &temp_desc); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + /* + * The type of the base object must be integer, buffer, string, or + * package. All others are not supported. + * + * NOTE: Integer is not specifically supported by the ACPI spec, + * but is supported implicitly via implicit operand conversion. + * rather than bother with conversion, we just use the byte width + * global (4 or 8 bytes). + */ + switch (type) { + case ACPI_TYPE_INTEGER: + value = acpi_gbl_integer_byte_width; + break; + + case ACPI_TYPE_STRING: + value = temp_desc->string.length; + break; + + case ACPI_TYPE_BUFFER: + + /* Buffer arguments may not be evaluated at this point */ + + status = acpi_ds_get_buffer_arguments(temp_desc); + value = temp_desc->buffer.length; + break; + + case ACPI_TYPE_PACKAGE: + + /* Package arguments may not be evaluated at this point */ + + status = acpi_ds_get_package_arguments(temp_desc); + value = temp_desc->package.count; + break; + + default: + ACPI_ERROR((AE_INFO, + "Operand must be Buffer/Integer/String/Package - found type %s", + acpi_ut_get_type_name(type))); + status = AE_AML_OPERAND_TYPE; + goto cleanup; + } + + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + /* + * Now that we have the size of the object, create a result + * object to hold the value + */ + return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + if (!return_desc) { + status = AE_NO_MEMORY; + goto cleanup; + } + + return_desc->integer.value = value; + break; + + case AML_REF_OF_OP: /* ref_of (source_object) */ + + status = + acpi_ex_get_object_reference(operand[0], &return_desc, + walk_state); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + break; + + case AML_DEREF_OF_OP: /* deref_of (obj_reference | String) */ + + /* Check for a method local or argument, or standalone String */ + + if (ACPI_GET_DESCRIPTOR_TYPE(operand[0]) == + ACPI_DESC_TYPE_NAMED) { + temp_desc = + acpi_ns_get_attached_object((struct + acpi_namespace_node *) + operand[0]); + if (temp_desc + && + ((ACPI_GET_OBJECT_TYPE(temp_desc) == + ACPI_TYPE_STRING) + || (ACPI_GET_OBJECT_TYPE(temp_desc) == + ACPI_TYPE_LOCAL_REFERENCE))) { + operand[0] = temp_desc; + acpi_ut_add_reference(temp_desc); + } else { + status = AE_AML_OPERAND_TYPE; + goto cleanup; + } + } else { + switch (ACPI_GET_OBJECT_TYPE(operand[0])) { + case ACPI_TYPE_LOCAL_REFERENCE: + /* + * This is a deref_of (local_x | arg_x) + * + * Must resolve/dereference the local/arg reference first + */ + switch (operand[0]->reference.class) { + case ACPI_REFCLASS_LOCAL: + case ACPI_REFCLASS_ARG: + + /* Set Operand[0] to the value of the local/arg */ + + status = + acpi_ds_method_data_get_value + (operand[0]->reference.class, + operand[0]->reference.value, + walk_state, &temp_desc); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + /* + * Delete our reference to the input object and + * point to the object just retrieved + */ + acpi_ut_remove_reference(operand[0]); + operand[0] = temp_desc; + break; + + case ACPI_REFCLASS_REFOF: + + /* Get the object to which the reference refers */ + + temp_desc = + operand[0]->reference.object; + acpi_ut_remove_reference(operand[0]); + operand[0] = temp_desc; + break; + + default: + + /* Must be an Index op - handled below */ + break; + } + break; + + case ACPI_TYPE_STRING: + break; + + default: + status = AE_AML_OPERAND_TYPE; + goto cleanup; + } + } + + if (ACPI_GET_DESCRIPTOR_TYPE(operand[0]) != + ACPI_DESC_TYPE_NAMED) { + if (ACPI_GET_OBJECT_TYPE(operand[0]) == + ACPI_TYPE_STRING) { + /* + * This is a deref_of (String). The string is a reference + * to a named ACPI object. + * + * 1) Find the owning Node + * 2) Dereference the node to an actual object. Could be a + * Field, so we need to resolve the node to a value. + */ + status = + acpi_ns_get_node(walk_state->scope_info-> + scope.node, + operand[0]->string.pointer, + ACPI_NS_SEARCH_PARENT, + ACPI_CAST_INDIRECT_PTR + (struct + acpi_namespace_node, + &return_desc)); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + status = + acpi_ex_resolve_node_to_value + (ACPI_CAST_INDIRECT_PTR + (struct acpi_namespace_node, &return_desc), + walk_state); + goto cleanup; + } + } + + /* Operand[0] may have changed from the code above */ + + if (ACPI_GET_DESCRIPTOR_TYPE(operand[0]) == + ACPI_DESC_TYPE_NAMED) { + /* + * This is a deref_of (object_reference) + * Get the actual object from the Node (This is the dereference). + * This case may only happen when a local_x or arg_x is + * dereferenced above. + */ + return_desc = acpi_ns_get_attached_object((struct + acpi_namespace_node + *) + operand[0]); + acpi_ut_add_reference(return_desc); + } else { + /* + * This must be a reference object produced by either the + * Index() or ref_of() operator + */ + switch (operand[0]->reference.class) { + case ACPI_REFCLASS_INDEX: + + /* + * The target type for the Index operator must be + * either a Buffer or a Package + */ + switch (operand[0]->reference.target_type) { + case ACPI_TYPE_BUFFER_FIELD: + + temp_desc = + operand[0]->reference.object; + + /* + * Create a new object that contains one element of the + * buffer -- the element pointed to by the index. + * + * NOTE: index into a buffer is NOT a pointer to a + * sub-buffer of the main buffer, it is only a pointer to a + * single element (byte) of the buffer! + */ + return_desc = + acpi_ut_create_internal_object + (ACPI_TYPE_INTEGER); + if (!return_desc) { + status = AE_NO_MEMORY; + goto cleanup; + } + + /* + * Since we are returning the value of the buffer at the + * indexed location, we don't need to add an additional + * reference to the buffer itself. + */ + return_desc->integer.value = + temp_desc->buffer. + pointer[operand[0]->reference. + value]; + break; + + case ACPI_TYPE_PACKAGE: + + /* + * Return the referenced element of the package. We must + * add another reference to the referenced object, however. + */ + return_desc = + *(operand[0]->reference.where); + if (return_desc) { + acpi_ut_add_reference + (return_desc); + } + break; + + default: + + ACPI_ERROR((AE_INFO, + "Unknown Index TargetType %X in reference object %p", + operand[0]->reference. + target_type, operand[0])); + status = AE_AML_OPERAND_TYPE; + goto cleanup; + } + break; + + case ACPI_REFCLASS_REFOF: + + return_desc = operand[0]->reference.object; + + if (ACPI_GET_DESCRIPTOR_TYPE(return_desc) == + ACPI_DESC_TYPE_NAMED) { + return_desc = + acpi_ns_get_attached_object((struct + acpi_namespace_node + *) + return_desc); + } + + /* Add another reference to the object! */ + + acpi_ut_add_reference(return_desc); + break; + + default: + ACPI_ERROR((AE_INFO, + "Unknown class in reference(%p) - %2.2X", + operand[0], + operand[0]->reference.class)); + + status = AE_TYPE; + goto cleanup; + } + } + break; + + default: + + ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", + walk_state->opcode)); + status = AE_AML_BAD_OPCODE; + goto cleanup; + } + + cleanup: + + /* Delete return object on error */ + + if (ACPI_FAILURE(status)) { + acpi_ut_remove_reference(return_desc); + } + + /* Save return object on success */ + + else { + walk_state->result_obj = return_desc; + } + + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/exoparg2.c b/drivers/acpi/acpica/exoparg2.c new file mode 100644 index 000000000000..b01980df1365 --- /dev/null +++ b/drivers/acpi/acpica/exoparg2.c @@ -0,0 +1,605 @@ +/****************************************************************************** + * + * Module Name: exoparg2 - AML execution - opcodes with 2 arguments + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_EXECUTER +ACPI_MODULE_NAME("exoparg2") + +/*! + * Naming convention for AML interpreter execution routines. + * + * The routines that begin execution of AML opcodes are named with a common + * convention based upon the number of arguments, the number of target operands, + * and whether or not a value is returned: + * + * AcpiExOpcode_xA_yT_zR + * + * Where: + * + * xA - ARGUMENTS: The number of arguments (input operands) that are + * required for this opcode type (1 through 6 args). + * yT - TARGETS: The number of targets (output operands) that are required + * for this opcode type (0, 1, or 2 targets). + * zR - RETURN VALUE: Indicates whether this opcode type returns a value + * as the function return (0 or 1). + * + * The AcpiExOpcode* functions are called via the Dispatcher component with + * fully resolved operands. +!*/ +/******************************************************************************* + * + * FUNCTION: acpi_ex_opcode_2A_0T_0R + * + * PARAMETERS: walk_state - Current walk state + * + * RETURN: Status + * + * DESCRIPTION: Execute opcode with two arguments, no target, and no return + * value. + * + * ALLOCATION: Deletes both operands + * + ******************************************************************************/ +acpi_status acpi_ex_opcode_2A_0T_0R(struct acpi_walk_state *walk_state) +{ + union acpi_operand_object **operand = &walk_state->operands[0]; + struct acpi_namespace_node *node; + u32 value; + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_0T_0R, + acpi_ps_get_opcode_name(walk_state->opcode)); + + /* Examine the opcode */ + + switch (walk_state->opcode) { + case AML_NOTIFY_OP: /* Notify (notify_object, notify_value) */ + + /* The first operand is a namespace node */ + + node = (struct acpi_namespace_node *)operand[0]; + + /* Second value is the notify value */ + + value = (u32) operand[1]->integer.value; + + /* Are notifies allowed on this object? */ + + if (!acpi_ev_is_notify_object(node)) { + ACPI_ERROR((AE_INFO, + "Unexpected notify object type [%s]", + acpi_ut_get_type_name(node->type))); + + status = AE_AML_OPERAND_TYPE; + break; + } +#ifdef ACPI_GPE_NOTIFY_CHECK + /* + * GPE method wake/notify check. Here, we want to ensure that we + * don't receive any "DeviceWake" Notifies from a GPE _Lxx or _Exx + * GPE method during system runtime. If we do, the GPE is marked + * as "wake-only" and disabled. + * + * 1) Is the Notify() value == device_wake? + * 2) Is this a GPE deferred method? (An _Lxx or _Exx method) + * 3) Did the original GPE happen at system runtime? + * (versus during wake) + * + * If all three cases are true, this is a wake-only GPE that should + * be disabled at runtime. + */ + if (value == 2) { /* device_wake */ + status = + acpi_ev_check_for_wake_only_gpe(walk_state-> + gpe_event_info); + if (ACPI_FAILURE(status)) { + + /* AE_WAKE_ONLY_GPE only error, means ignore this notify */ + + return_ACPI_STATUS(AE_OK) + } + } +#endif + + /* + * Dispatch the notify to the appropriate handler + * NOTE: the request is queued for execution after this method + * completes. The notify handlers are NOT invoked synchronously + * from this thread -- because handlers may in turn run other + * control methods. + */ + status = acpi_ev_queue_notify_request(node, value); + break; + + default: + + ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", + walk_state->opcode)); + status = AE_AML_BAD_OPCODE; + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_opcode_2A_2T_1R + * + * PARAMETERS: walk_state - Current walk state + * + * RETURN: Status + * + * DESCRIPTION: Execute a dyadic operator (2 operands) with 2 output targets + * and one implicit return value. + * + ******************************************************************************/ + +acpi_status acpi_ex_opcode_2A_2T_1R(struct acpi_walk_state *walk_state) +{ + union acpi_operand_object **operand = &walk_state->operands[0]; + union acpi_operand_object *return_desc1 = NULL; + union acpi_operand_object *return_desc2 = NULL; + acpi_status status; + + ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_2T_1R, + acpi_ps_get_opcode_name(walk_state->opcode)); + + /* Execute the opcode */ + + switch (walk_state->opcode) { + case AML_DIVIDE_OP: + + /* Divide (Dividend, Divisor, remainder_result quotient_result) */ + + return_desc1 = + acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + if (!return_desc1) { + status = AE_NO_MEMORY; + goto cleanup; + } + + return_desc2 = + acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + if (!return_desc2) { + status = AE_NO_MEMORY; + goto cleanup; + } + + /* Quotient to return_desc1, remainder to return_desc2 */ + + status = acpi_ut_divide(operand[0]->integer.value, + operand[1]->integer.value, + &return_desc1->integer.value, + &return_desc2->integer.value); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + break; + + default: + + ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", + walk_state->opcode)); + status = AE_AML_BAD_OPCODE; + goto cleanup; + } + + /* Store the results to the target reference operands */ + + status = acpi_ex_store(return_desc2, operand[2], walk_state); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + status = acpi_ex_store(return_desc1, operand[3], walk_state); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + cleanup: + /* + * Since the remainder is not returned indirectly, remove a reference to + * it. Only the quotient is returned indirectly. + */ + acpi_ut_remove_reference(return_desc2); + + if (ACPI_FAILURE(status)) { + + /* Delete the return object */ + + acpi_ut_remove_reference(return_desc1); + } + + /* Save return object (the remainder) on success */ + + else { + walk_state->result_obj = return_desc1; + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_opcode_2A_1T_1R + * + * PARAMETERS: walk_state - Current walk state + * + * RETURN: Status + * + * DESCRIPTION: Execute opcode with two arguments, one target, and a return + * value. + * + ******************************************************************************/ + +acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state) +{ + union acpi_operand_object **operand = &walk_state->operands[0]; + union acpi_operand_object *return_desc = NULL; + acpi_integer index; + acpi_status status = AE_OK; + acpi_size length; + + ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_1T_1R, + acpi_ps_get_opcode_name(walk_state->opcode)); + + /* Execute the opcode */ + + if (walk_state->op_info->flags & AML_MATH) { + + /* All simple math opcodes (add, etc.) */ + + return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + if (!return_desc) { + status = AE_NO_MEMORY; + goto cleanup; + } + + return_desc->integer.value = + acpi_ex_do_math_op(walk_state->opcode, + operand[0]->integer.value, + operand[1]->integer.value); + goto store_result_to_target; + } + + switch (walk_state->opcode) { + case AML_MOD_OP: /* Mod (Dividend, Divisor, remainder_result (ACPI 2.0) */ + + return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + if (!return_desc) { + status = AE_NO_MEMORY; + goto cleanup; + } + + /* return_desc will contain the remainder */ + + status = acpi_ut_divide(operand[0]->integer.value, + operand[1]->integer.value, + NULL, &return_desc->integer.value); + break; + + case AML_CONCAT_OP: /* Concatenate (Data1, Data2, Result) */ + + status = acpi_ex_do_concatenate(operand[0], operand[1], + &return_desc, walk_state); + break; + + case AML_TO_STRING_OP: /* to_string (Buffer, Length, Result) (ACPI 2.0) */ + + /* + * Input object is guaranteed to be a buffer at this point (it may have + * been converted.) Copy the raw buffer data to a new object of + * type String. + */ + + /* + * Get the length of the new string. It is the smallest of: + * 1) Length of the input buffer + * 2) Max length as specified in the to_string operator + * 3) Length of input buffer up to a zero byte (null terminator) + * + * NOTE: A length of zero is ok, and will create a zero-length, null + * terminated string. + */ + length = 0; + while ((length < operand[0]->buffer.length) && + (length < operand[1]->integer.value) && + (operand[0]->buffer.pointer[length])) { + length++; + } + + /* Allocate a new string object */ + + return_desc = acpi_ut_create_string_object(length); + if (!return_desc) { + status = AE_NO_MEMORY; + goto cleanup; + } + + /* + * Copy the raw buffer data with no transform. + * (NULL terminated already) + */ + ACPI_MEMCPY(return_desc->string.pointer, + operand[0]->buffer.pointer, length); + break; + + case AML_CONCAT_RES_OP: + + /* concatenate_res_template (Buffer, Buffer, Result) (ACPI 2.0) */ + + status = acpi_ex_concat_template(operand[0], operand[1], + &return_desc, walk_state); + break; + + case AML_INDEX_OP: /* Index (Source Index Result) */ + + /* Create the internal return object */ + + return_desc = + acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_REFERENCE); + if (!return_desc) { + status = AE_NO_MEMORY; + goto cleanup; + } + + /* Initialize the Index reference object */ + + index = operand[1]->integer.value; + return_desc->reference.value = (u32) index; + return_desc->reference.class = ACPI_REFCLASS_INDEX; + + /* + * At this point, the Source operand is a String, Buffer, or Package. + * Verify that the index is within range. + */ + switch (ACPI_GET_OBJECT_TYPE(operand[0])) { + case ACPI_TYPE_STRING: + + if (index >= operand[0]->string.length) { + status = AE_AML_STRING_LIMIT; + } + + return_desc->reference.target_type = + ACPI_TYPE_BUFFER_FIELD; + break; + + case ACPI_TYPE_BUFFER: + + if (index >= operand[0]->buffer.length) { + status = AE_AML_BUFFER_LIMIT; + } + + return_desc->reference.target_type = + ACPI_TYPE_BUFFER_FIELD; + break; + + case ACPI_TYPE_PACKAGE: + + if (index >= operand[0]->package.count) { + status = AE_AML_PACKAGE_LIMIT; + } + + return_desc->reference.target_type = ACPI_TYPE_PACKAGE; + return_desc->reference.where = + &operand[0]->package.elements[index]; + break; + + default: + + status = AE_AML_INTERNAL; + goto cleanup; + } + + /* Failure means that the Index was beyond the end of the object */ + + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Index (%X%8.8X) is beyond end of object", + ACPI_FORMAT_UINT64(index))); + goto cleanup; + } + + /* + * Save the target object and add a reference to it for the life + * of the index + */ + return_desc->reference.object = operand[0]; + acpi_ut_add_reference(operand[0]); + + /* Store the reference to the Target */ + + status = acpi_ex_store(return_desc, operand[2], walk_state); + + /* Return the reference */ + + walk_state->result_obj = return_desc; + goto cleanup; + + default: + + ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", + walk_state->opcode)); + status = AE_AML_BAD_OPCODE; + break; + } + + store_result_to_target: + + if (ACPI_SUCCESS(status)) { + /* + * Store the result of the operation (which is now in return_desc) into + * the Target descriptor. + */ + status = acpi_ex_store(return_desc, operand[2], walk_state); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + if (!walk_state->result_obj) { + walk_state->result_obj = return_desc; + } + } + + cleanup: + + /* Delete return object on error */ + + if (ACPI_FAILURE(status)) { + acpi_ut_remove_reference(return_desc); + walk_state->result_obj = NULL; + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_opcode_2A_0T_1R + * + * PARAMETERS: walk_state - Current walk state + * + * RETURN: Status + * + * DESCRIPTION: Execute opcode with 2 arguments, no target, and a return value + * + ******************************************************************************/ + +acpi_status acpi_ex_opcode_2A_0T_1R(struct acpi_walk_state *walk_state) +{ + union acpi_operand_object **operand = &walk_state->operands[0]; + union acpi_operand_object *return_desc = NULL; + acpi_status status = AE_OK; + u8 logical_result = FALSE; + + ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_0T_1R, + acpi_ps_get_opcode_name(walk_state->opcode)); + + /* Create the internal return object */ + + return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + if (!return_desc) { + status = AE_NO_MEMORY; + goto cleanup; + } + + /* Execute the Opcode */ + + if (walk_state->op_info->flags & AML_LOGICAL_NUMERIC) { + + /* logical_op (Operand0, Operand1) */ + + status = acpi_ex_do_logical_numeric_op(walk_state->opcode, + operand[0]->integer. + value, + operand[1]->integer. + value, &logical_result); + goto store_logical_result; + } else if (walk_state->op_info->flags & AML_LOGICAL) { + + /* logical_op (Operand0, Operand1) */ + + status = acpi_ex_do_logical_op(walk_state->opcode, operand[0], + operand[1], &logical_result); + goto store_logical_result; + } + + switch (walk_state->opcode) { + case AML_ACQUIRE_OP: /* Acquire (mutex_object, Timeout) */ + + status = + acpi_ex_acquire_mutex(operand[1], operand[0], walk_state); + if (status == AE_TIME) { + logical_result = TRUE; /* TRUE = Acquire timed out */ + status = AE_OK; + } + break; + + case AML_WAIT_OP: /* Wait (event_object, Timeout) */ + + status = acpi_ex_system_wait_event(operand[1], operand[0]); + if (status == AE_TIME) { + logical_result = TRUE; /* TRUE, Wait timed out */ + status = AE_OK; + } + break; + + default: + + ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", + walk_state->opcode)); + status = AE_AML_BAD_OPCODE; + goto cleanup; + } + + store_logical_result: + /* + * Set return value to according to logical_result. logical TRUE (all ones) + * Default is FALSE (zero) + */ + if (logical_result) { + return_desc->integer.value = ACPI_INTEGER_MAX; + } + + cleanup: + + /* Delete return object on error */ + + if (ACPI_FAILURE(status)) { + acpi_ut_remove_reference(return_desc); + } + + /* Save return object on success */ + + else { + walk_state->result_obj = return_desc; + } + + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/exoparg3.c b/drivers/acpi/acpica/exoparg3.c new file mode 100644 index 000000000000..26dbd5c2c1da --- /dev/null +++ b/drivers/acpi/acpica/exoparg3.c @@ -0,0 +1,273 @@ + +/****************************************************************************** + * + * Module Name: exoparg3 - AML execution - opcodes with 3 arguments + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_EXECUTER +ACPI_MODULE_NAME("exoparg3") + +/*! + * Naming convention for AML interpreter execution routines. + * + * The routines that begin execution of AML opcodes are named with a common + * convention based upon the number of arguments, the number of target operands, + * and whether or not a value is returned: + * + * AcpiExOpcode_xA_yT_zR + * + * Where: + * + * xA - ARGUMENTS: The number of arguments (input operands) that are + * required for this opcode type (1 through 6 args). + * yT - TARGETS: The number of targets (output operands) that are required + * for this opcode type (0, 1, or 2 targets). + * zR - RETURN VALUE: Indicates whether this opcode type returns a value + * as the function return (0 or 1). + * + * The AcpiExOpcode* functions are called via the Dispatcher component with + * fully resolved operands. +!*/ +/******************************************************************************* + * + * FUNCTION: acpi_ex_opcode_3A_0T_0R + * + * PARAMETERS: walk_state - Current walk state + * + * RETURN: Status + * + * DESCRIPTION: Execute Triadic operator (3 operands) + * + ******************************************************************************/ +acpi_status acpi_ex_opcode_3A_0T_0R(struct acpi_walk_state *walk_state) +{ + union acpi_operand_object **operand = &walk_state->operands[0]; + struct acpi_signal_fatal_info *fatal; + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE_STR(ex_opcode_3A_0T_0R, + acpi_ps_get_opcode_name(walk_state->opcode)); + + switch (walk_state->opcode) { + case AML_FATAL_OP: /* Fatal (fatal_type fatal_code fatal_arg) */ + + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "FatalOp: Type %X Code %X Arg %X <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<\n", + (u32) operand[0]->integer.value, + (u32) operand[1]->integer.value, + (u32) operand[2]->integer.value)); + + fatal = ACPI_ALLOCATE(sizeof(struct acpi_signal_fatal_info)); + if (fatal) { + fatal->type = (u32) operand[0]->integer.value; + fatal->code = (u32) operand[1]->integer.value; + fatal->argument = (u32) operand[2]->integer.value; + } + + /* Always signal the OS! */ + + status = acpi_os_signal(ACPI_SIGNAL_FATAL, fatal); + + /* Might return while OS is shutting down, just continue */ + + ACPI_FREE(fatal); + break; + + default: + + ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", + walk_state->opcode)); + status = AE_AML_BAD_OPCODE; + goto cleanup; + } + + cleanup: + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_opcode_3A_1T_1R + * + * PARAMETERS: walk_state - Current walk state + * + * RETURN: Status + * + * DESCRIPTION: Execute Triadic operator (3 operands) + * + ******************************************************************************/ + +acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state) +{ + union acpi_operand_object **operand = &walk_state->operands[0]; + union acpi_operand_object *return_desc = NULL; + char *buffer = NULL; + acpi_status status = AE_OK; + acpi_integer index; + acpi_size length; + + ACPI_FUNCTION_TRACE_STR(ex_opcode_3A_1T_1R, + acpi_ps_get_opcode_name(walk_state->opcode)); + + switch (walk_state->opcode) { + case AML_MID_OP: /* Mid (Source[0], Index[1], Length[2], Result[3]) */ + + /* + * Create the return object. The Source operand is guaranteed to be + * either a String or a Buffer, so just use its type. + */ + return_desc = + acpi_ut_create_internal_object(ACPI_GET_OBJECT_TYPE + (operand[0])); + if (!return_desc) { + status = AE_NO_MEMORY; + goto cleanup; + } + + /* Get the Integer values from the objects */ + + index = operand[1]->integer.value; + length = (acpi_size) operand[2]->integer.value; + + /* + * If the index is beyond the length of the String/Buffer, or if the + * requested length is zero, return a zero-length String/Buffer + */ + if (index >= operand[0]->string.length) { + length = 0; + } + + /* Truncate request if larger than the actual String/Buffer */ + + else if ((index + length) > operand[0]->string.length) { + length = (acpi_size) operand[0]->string.length - + (acpi_size) index; + } + + /* Strings always have a sub-pointer, not so for buffers */ + + switch (ACPI_GET_OBJECT_TYPE(operand[0])) { + case ACPI_TYPE_STRING: + + /* Always allocate a new buffer for the String */ + + buffer = ACPI_ALLOCATE_ZEROED((acpi_size) length + 1); + if (!buffer) { + status = AE_NO_MEMORY; + goto cleanup; + } + break; + + case ACPI_TYPE_BUFFER: + + /* If the requested length is zero, don't allocate a buffer */ + + if (length > 0) { + + /* Allocate a new buffer for the Buffer */ + + buffer = ACPI_ALLOCATE_ZEROED(length); + if (!buffer) { + status = AE_NO_MEMORY; + goto cleanup; + } + } + break; + + default: /* Should not happen */ + + status = AE_AML_OPERAND_TYPE; + goto cleanup; + } + + if (buffer) { + + /* We have a buffer, copy the portion requested */ + + ACPI_MEMCPY(buffer, operand[0]->string.pointer + index, + length); + } + + /* Set the length of the new String/Buffer */ + + return_desc->string.pointer = buffer; + return_desc->string.length = (u32) length; + + /* Mark buffer initialized */ + + return_desc->buffer.flags |= AOPOBJ_DATA_VALID; + break; + + default: + + ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", + walk_state->opcode)); + status = AE_AML_BAD_OPCODE; + goto cleanup; + } + + /* Store the result in the target */ + + status = acpi_ex_store(return_desc, operand[3], walk_state); + + cleanup: + + /* Delete return object on error */ + + if (ACPI_FAILURE(status) || walk_state->result_obj) { + acpi_ut_remove_reference(return_desc); + walk_state->result_obj = NULL; + } + + /* Set the return object and exit */ + + else { + walk_state->result_obj = return_desc; + } + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/exoparg6.c b/drivers/acpi/acpica/exoparg6.c new file mode 100644 index 000000000000..bbbba504979f --- /dev/null +++ b/drivers/acpi/acpica/exoparg6.c @@ -0,0 +1,341 @@ + +/****************************************************************************** + * + * Module Name: exoparg6 - AML execution - opcodes with 6 arguments + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_EXECUTER +ACPI_MODULE_NAME("exoparg6") + +/*! + * Naming convention for AML interpreter execution routines. + * + * The routines that begin execution of AML opcodes are named with a common + * convention based upon the number of arguments, the number of target operands, + * and whether or not a value is returned: + * + * AcpiExOpcode_xA_yT_zR + * + * Where: + * + * xA - ARGUMENTS: The number of arguments (input operands) that are + * required for this opcode type (1 through 6 args). + * yT - TARGETS: The number of targets (output operands) that are required + * for this opcode type (0, 1, or 2 targets). + * zR - RETURN VALUE: Indicates whether this opcode type returns a value + * as the function return (0 or 1). + * + * The AcpiExOpcode* functions are called via the Dispatcher component with + * fully resolved operands. +!*/ +/* Local prototypes */ +static u8 +acpi_ex_do_match(u32 match_op, + union acpi_operand_object *package_obj, + union acpi_operand_object *match_obj); + +/******************************************************************************* + * + * FUNCTION: acpi_ex_do_match + * + * PARAMETERS: match_op - The AML match operand + * package_obj - Object from the target package + * match_obj - Object to be matched + * + * RETURN: TRUE if the match is successful, FALSE otherwise + * + * DESCRIPTION: Implements the low-level match for the ASL Match operator. + * Package elements will be implicitly converted to the type of + * the match object (Integer/Buffer/String). + * + ******************************************************************************/ + +static u8 +acpi_ex_do_match(u32 match_op, + union acpi_operand_object *package_obj, + union acpi_operand_object *match_obj) +{ + u8 logical_result = TRUE; + acpi_status status; + + /* + * Note: Since the package_obj/match_obj ordering is opposite to that of + * the standard logical operators, we have to reverse them when we call + * do_logical_op in order to make the implicit conversion rules work + * correctly. However, this means we have to flip the entire equation + * also. A bit ugly perhaps, but overall, better than fussing the + * parameters around at runtime, over and over again. + * + * Below, P[i] refers to the package element, M refers to the Match object. + */ + switch (match_op) { + case MATCH_MTR: + + /* Always true */ + + break; + + case MATCH_MEQ: + + /* + * True if equal: (P[i] == M) + * Change to: (M == P[i]) + */ + status = + acpi_ex_do_logical_op(AML_LEQUAL_OP, match_obj, package_obj, + &logical_result); + if (ACPI_FAILURE(status)) { + return (FALSE); + } + break; + + case MATCH_MLE: + + /* + * True if less than or equal: (P[i] <= M) (P[i] not_greater than M) + * Change to: (M >= P[i]) (M not_less than P[i]) + */ + status = + acpi_ex_do_logical_op(AML_LLESS_OP, match_obj, package_obj, + &logical_result); + if (ACPI_FAILURE(status)) { + return (FALSE); + } + logical_result = (u8) ! logical_result; + break; + + case MATCH_MLT: + + /* + * True if less than: (P[i] < M) + * Change to: (M > P[i]) + */ + status = + acpi_ex_do_logical_op(AML_LGREATER_OP, match_obj, + package_obj, &logical_result); + if (ACPI_FAILURE(status)) { + return (FALSE); + } + break; + + case MATCH_MGE: + + /* + * True if greater than or equal: (P[i] >= M) (P[i] not_less than M) + * Change to: (M <= P[i]) (M not_greater than P[i]) + */ + status = + acpi_ex_do_logical_op(AML_LGREATER_OP, match_obj, + package_obj, &logical_result); + if (ACPI_FAILURE(status)) { + return (FALSE); + } + logical_result = (u8) ! logical_result; + break; + + case MATCH_MGT: + + /* + * True if greater than: (P[i] > M) + * Change to: (M < P[i]) + */ + status = + acpi_ex_do_logical_op(AML_LLESS_OP, match_obj, package_obj, + &logical_result); + if (ACPI_FAILURE(status)) { + return (FALSE); + } + break; + + default: + + /* Undefined */ + + return (FALSE); + } + + return logical_result; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_opcode_6A_0T_1R + * + * PARAMETERS: walk_state - Current walk state + * + * RETURN: Status + * + * DESCRIPTION: Execute opcode with 6 arguments, no target, and a return value + * + ******************************************************************************/ + +acpi_status acpi_ex_opcode_6A_0T_1R(struct acpi_walk_state * walk_state) +{ + union acpi_operand_object **operand = &walk_state->operands[0]; + union acpi_operand_object *return_desc = NULL; + acpi_status status = AE_OK; + acpi_integer index; + union acpi_operand_object *this_element; + + ACPI_FUNCTION_TRACE_STR(ex_opcode_6A_0T_1R, + acpi_ps_get_opcode_name(walk_state->opcode)); + + switch (walk_state->opcode) { + case AML_MATCH_OP: + /* + * Match (search_pkg[0], match_op1[1], match_obj1[2], + * match_op2[3], match_obj2[4], start_index[5]) + */ + + /* Validate both Match Term Operators (MTR, MEQ, etc.) */ + + if ((operand[1]->integer.value > MAX_MATCH_OPERATOR) || + (operand[3]->integer.value > MAX_MATCH_OPERATOR)) { + ACPI_ERROR((AE_INFO, "Match operator out of range")); + status = AE_AML_OPERAND_VALUE; + goto cleanup; + } + + /* Get the package start_index, validate against the package length */ + + index = operand[5]->integer.value; + if (index >= operand[0]->package.count) { + ACPI_ERROR((AE_INFO, + "Index (%X%8.8X) beyond package end (%X)", + ACPI_FORMAT_UINT64(index), + operand[0]->package.count)); + status = AE_AML_PACKAGE_LIMIT; + goto cleanup; + } + + /* Create an integer for the return value */ + + return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + if (!return_desc) { + status = AE_NO_MEMORY; + goto cleanup; + + } + + /* Default return value if no match found */ + + return_desc->integer.value = ACPI_INTEGER_MAX; + + /* + * Examine each element until a match is found. Both match conditions + * must be satisfied for a match to occur. Within the loop, + * "continue" signifies that the current element does not match + * and the next should be examined. + * + * Upon finding a match, the loop will terminate via "break" at + * the bottom. If it terminates "normally", match_value will be + * ACPI_INTEGER_MAX (Ones) (its initial value) indicating that no + * match was found. + */ + for (; index < operand[0]->package.count; index++) { + + /* Get the current package element */ + + this_element = operand[0]->package.elements[index]; + + /* Treat any uninitialized (NULL) elements as non-matching */ + + if (!this_element) { + continue; + } + + /* + * Both match conditions must be satisfied. Execution of a continue + * (proceed to next iteration of enclosing for loop) signifies a + * non-match. + */ + if (!acpi_ex_do_match((u32) operand[1]->integer.value, + this_element, operand[2])) { + continue; + } + + if (!acpi_ex_do_match((u32) operand[3]->integer.value, + this_element, operand[4])) { + continue; + } + + /* Match found: Index is the return value */ + + return_desc->integer.value = index; + break; + } + break; + + case AML_LOAD_TABLE_OP: + + status = acpi_ex_load_table_op(walk_state, &return_desc); + break; + + default: + + ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", + walk_state->opcode)); + status = AE_AML_BAD_OPCODE; + goto cleanup; + } + + cleanup: + + /* Delete return object on error */ + + if (ACPI_FAILURE(status)) { + acpi_ut_remove_reference(return_desc); + } + + /* Save return object on success */ + + else { + walk_state->result_obj = return_desc; + } + + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/exprep.c b/drivers/acpi/acpica/exprep.c new file mode 100644 index 000000000000..8f2baa934e95 --- /dev/null +++ b/drivers/acpi/acpica/exprep.c @@ -0,0 +1,590 @@ + +/****************************************************************************** + * + * Module Name: exprep - ACPI AML (p-code) execution - field prep utilities + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_EXECUTER +ACPI_MODULE_NAME("exprep") + +/* Local prototypes */ +static u32 +acpi_ex_decode_field_access(union acpi_operand_object *obj_desc, + u8 field_flags, u32 * return_byte_alignment); + +#ifdef ACPI_UNDER_DEVELOPMENT + +static u32 +acpi_ex_generate_access(u32 field_bit_offset, + u32 field_bit_length, u32 region_length); + +/******************************************************************************* + * + * FUNCTION: acpi_ex_generate_access + * + * PARAMETERS: field_bit_offset - Start of field within parent region/buffer + * field_bit_length - Length of field in bits + * region_length - Length of parent in bytes + * + * RETURN: Field granularity (8, 16, 32 or 64) and + * byte_alignment (1, 2, 3, or 4) + * + * DESCRIPTION: Generate an optimal access width for fields defined with the + * any_acc keyword. + * + * NOTE: Need to have the region_length in order to check for boundary + * conditions (end-of-region). However, the region_length is a deferred + * operation. Therefore, to complete this implementation, the generation + * of this access width must be deferred until the region length has + * been evaluated. + * + ******************************************************************************/ + +static u32 +acpi_ex_generate_access(u32 field_bit_offset, + u32 field_bit_length, u32 region_length) +{ + u32 field_byte_length; + u32 field_byte_offset; + u32 field_byte_end_offset; + u32 access_byte_width; + u32 field_start_offset; + u32 field_end_offset; + u32 minimum_access_width = 0xFFFFFFFF; + u32 minimum_accesses = 0xFFFFFFFF; + u32 accesses; + + ACPI_FUNCTION_TRACE(ex_generate_access); + + /* Round Field start offset and length to "minimal" byte boundaries */ + + field_byte_offset = ACPI_DIV_8(ACPI_ROUND_DOWN(field_bit_offset, 8)); + field_byte_end_offset = ACPI_DIV_8(ACPI_ROUND_UP(field_bit_length + + field_bit_offset, 8)); + field_byte_length = field_byte_end_offset - field_byte_offset; + + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, + "Bit length %d, Bit offset %d\n", + field_bit_length, field_bit_offset)); + + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, + "Byte Length %d, Byte Offset %d, End Offset %d\n", + field_byte_length, field_byte_offset, + field_byte_end_offset)); + + /* + * Iterative search for the maximum access width that is both aligned + * and does not go beyond the end of the region + * + * Start at byte_acc and work upwards to qword_acc max. (1,2,4,8 bytes) + */ + for (access_byte_width = 1; access_byte_width <= 8; + access_byte_width <<= 1) { + /* + * 1) Round end offset up to next access boundary and make sure that + * this does not go beyond the end of the parent region. + * 2) When the Access width is greater than the field_byte_length, we + * are done. (This does not optimize for the perfectly aligned + * case yet). + */ + if (ACPI_ROUND_UP(field_byte_end_offset, access_byte_width) <= + region_length) { + field_start_offset = + ACPI_ROUND_DOWN(field_byte_offset, + access_byte_width) / + access_byte_width; + + field_end_offset = + ACPI_ROUND_UP((field_byte_length + + field_byte_offset), + access_byte_width) / + access_byte_width; + + accesses = field_end_offset - field_start_offset; + + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, + "AccessWidth %d end is within region\n", + access_byte_width)); + + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, + "Field Start %d, Field End %d -- requires %d accesses\n", + field_start_offset, field_end_offset, + accesses)); + + /* Single access is optimal */ + + if (accesses <= 1) { + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, + "Entire field can be accessed with one operation of size %d\n", + access_byte_width)); + return_VALUE(access_byte_width); + } + + /* + * Fits in the region, but requires more than one read/write. + * try the next wider access on next iteration + */ + if (accesses < minimum_accesses) { + minimum_accesses = accesses; + minimum_access_width = access_byte_width; + } + } else { + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, + "AccessWidth %d end is NOT within region\n", + access_byte_width)); + if (access_byte_width == 1) { + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, + "Field goes beyond end-of-region!\n")); + + /* Field does not fit in the region at all */ + + return_VALUE(0); + } + + /* + * This width goes beyond the end-of-region, back off to + * previous access + */ + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, + "Backing off to previous optimal access width of %d\n", + minimum_access_width)); + return_VALUE(minimum_access_width); + } + } + + /* + * Could not read/write field with one operation, + * just use max access width + */ + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, + "Cannot access field in one operation, using width 8\n")); + return_VALUE(8); +} +#endif /* ACPI_UNDER_DEVELOPMENT */ + +/******************************************************************************* + * + * FUNCTION: acpi_ex_decode_field_access + * + * PARAMETERS: obj_desc - Field object + * field_flags - Encoded fieldflags (contains access bits) + * return_byte_alignment - Where the byte alignment is returned + * + * RETURN: Field granularity (8, 16, 32 or 64) and + * byte_alignment (1, 2, 3, or 4) + * + * DESCRIPTION: Decode the access_type bits of a field definition. + * + ******************************************************************************/ + +static u32 +acpi_ex_decode_field_access(union acpi_operand_object *obj_desc, + u8 field_flags, u32 * return_byte_alignment) +{ + u32 access; + u32 byte_alignment; + u32 bit_length; + + ACPI_FUNCTION_TRACE(ex_decode_field_access); + + access = (field_flags & AML_FIELD_ACCESS_TYPE_MASK); + + switch (access) { + case AML_FIELD_ACCESS_ANY: + +#ifdef ACPI_UNDER_DEVELOPMENT + byte_alignment = + acpi_ex_generate_access(obj_desc->common_field. + start_field_bit_offset, + obj_desc->common_field.bit_length, + 0xFFFFFFFF + /* Temp until we pass region_length as parameter */ + ); + bit_length = byte_alignment * 8; +#endif + + byte_alignment = 1; + bit_length = 8; + break; + + case AML_FIELD_ACCESS_BYTE: + case AML_FIELD_ACCESS_BUFFER: /* ACPI 2.0 (SMBus Buffer) */ + byte_alignment = 1; + bit_length = 8; + break; + + case AML_FIELD_ACCESS_WORD: + byte_alignment = 2; + bit_length = 16; + break; + + case AML_FIELD_ACCESS_DWORD: + byte_alignment = 4; + bit_length = 32; + break; + + case AML_FIELD_ACCESS_QWORD: /* ACPI 2.0 */ + byte_alignment = 8; + bit_length = 64; + break; + + default: + /* Invalid field access type */ + + ACPI_ERROR((AE_INFO, "Unknown field access type %X", access)); + return_UINT32(0); + } + + if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_BUFFER_FIELD) { + /* + * buffer_field access can be on any byte boundary, so the + * byte_alignment is always 1 byte -- regardless of any byte_alignment + * implied by the field access type. + */ + byte_alignment = 1; + } + + *return_byte_alignment = byte_alignment; + return_UINT32(bit_length); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_prep_common_field_object + * + * PARAMETERS: obj_desc - The field object + * field_flags - Access, lock_rule, and update_rule. + * The format of a field_flag is described + * in the ACPI specification + * field_attribute - Special attributes (not used) + * field_bit_position - Field start position + * field_bit_length - Field length in number of bits + * + * RETURN: Status + * + * DESCRIPTION: Initialize the areas of the field object that are common + * to the various types of fields. Note: This is very "sensitive" + * code because we are solving the general case for field + * alignment. + * + ******************************************************************************/ + +acpi_status +acpi_ex_prep_common_field_object(union acpi_operand_object *obj_desc, + u8 field_flags, + u8 field_attribute, + u32 field_bit_position, u32 field_bit_length) +{ + u32 access_bit_width; + u32 byte_alignment; + u32 nearest_byte_address; + + ACPI_FUNCTION_TRACE(ex_prep_common_field_object); + + /* + * Note: the structure being initialized is the + * ACPI_COMMON_FIELD_INFO; No structure fields outside of the common + * area are initialized by this procedure. + */ + obj_desc->common_field.field_flags = field_flags; + obj_desc->common_field.attribute = field_attribute; + obj_desc->common_field.bit_length = field_bit_length; + + /* + * Decode the access type so we can compute offsets. The access type gives + * two pieces of information - the width of each field access and the + * necessary byte_alignment (address granularity) of the access. + * + * For any_acc, the access_bit_width is the largest width that is both + * necessary and possible in an attempt to access the whole field in one + * I/O operation. However, for any_acc, the byte_alignment is always one + * byte. + * + * For all Buffer Fields, the byte_alignment is always one byte. + * + * For all other access types (Byte, Word, Dword, Qword), the Bitwidth is + * the same (equivalent) as the byte_alignment. + */ + access_bit_width = acpi_ex_decode_field_access(obj_desc, field_flags, + &byte_alignment); + if (!access_bit_width) { + return_ACPI_STATUS(AE_AML_OPERAND_VALUE); + } + + /* Setup width (access granularity) fields */ + + obj_desc->common_field.access_byte_width = (u8) + ACPI_DIV_8(access_bit_width); /* 1, 2, 4, 8 */ + + obj_desc->common_field.access_bit_width = (u8) access_bit_width; + + /* + * base_byte_offset is the address of the start of the field within the + * region. It is the byte address of the first *datum* (field-width data + * unit) of the field. (i.e., the first datum that contains at least the + * first *bit* of the field.) + * + * Note: byte_alignment is always either equal to the access_bit_width or 8 + * (Byte access), and it defines the addressing granularity of the parent + * region or buffer. + */ + nearest_byte_address = + ACPI_ROUND_BITS_DOWN_TO_BYTES(field_bit_position); + obj_desc->common_field.base_byte_offset = (u32) + ACPI_ROUND_DOWN(nearest_byte_address, byte_alignment); + + /* + * start_field_bit_offset is the offset of the first bit of the field within + * a field datum. + */ + obj_desc->common_field.start_field_bit_offset = (u8) + (field_bit_position - + ACPI_MUL_8(obj_desc->common_field.base_byte_offset)); + + /* + * Does the entire field fit within a single field access element? (datum) + * (i.e., without crossing a datum boundary) + */ + if ((obj_desc->common_field.start_field_bit_offset + + field_bit_length) <= (u16) access_bit_width) { + obj_desc->common.flags |= AOPOBJ_SINGLE_DATUM; + } + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_prep_field_value + * + * PARAMETERS: Info - Contains all field creation info + * + * RETURN: Status + * + * DESCRIPTION: Construct an union acpi_operand_object of type def_field and + * connect it to the parent Node. + * + ******************************************************************************/ + +acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info) +{ + union acpi_operand_object *obj_desc; + union acpi_operand_object *second_desc = NULL; + u32 type; + acpi_status status; + + ACPI_FUNCTION_TRACE(ex_prep_field_value); + + /* Parameter validation */ + + if (info->field_type != ACPI_TYPE_LOCAL_INDEX_FIELD) { + if (!info->region_node) { + ACPI_ERROR((AE_INFO, "Null RegionNode")); + return_ACPI_STATUS(AE_AML_NO_OPERAND); + } + + type = acpi_ns_get_type(info->region_node); + if (type != ACPI_TYPE_REGION) { + ACPI_ERROR((AE_INFO, + "Needed Region, found type %X (%s)", + type, acpi_ut_get_type_name(type))); + + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + } + + /* Allocate a new field object */ + + obj_desc = acpi_ut_create_internal_object(info->field_type); + if (!obj_desc) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* Initialize areas of the object that are common to all fields */ + + obj_desc->common_field.node = info->field_node; + status = acpi_ex_prep_common_field_object(obj_desc, info->field_flags, + info->attribute, + info->field_bit_position, + info->field_bit_length); + if (ACPI_FAILURE(status)) { + acpi_ut_delete_object_desc(obj_desc); + return_ACPI_STATUS(status); + } + + /* Initialize areas of the object that are specific to the field type */ + + switch (info->field_type) { + case ACPI_TYPE_LOCAL_REGION_FIELD: + + obj_desc->field.region_obj = + acpi_ns_get_attached_object(info->region_node); + + /* An additional reference for the container */ + + acpi_ut_add_reference(obj_desc->field.region_obj); + + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, + "RegionField: BitOff %X, Off %X, Gran %X, Region %p\n", + obj_desc->field.start_field_bit_offset, + obj_desc->field.base_byte_offset, + obj_desc->field.access_byte_width, + obj_desc->field.region_obj)); + break; + + case ACPI_TYPE_LOCAL_BANK_FIELD: + + obj_desc->bank_field.value = info->bank_value; + obj_desc->bank_field.region_obj = + acpi_ns_get_attached_object(info->region_node); + obj_desc->bank_field.bank_obj = + acpi_ns_get_attached_object(info->register_node); + + /* An additional reference for the attached objects */ + + acpi_ut_add_reference(obj_desc->bank_field.region_obj); + acpi_ut_add_reference(obj_desc->bank_field.bank_obj); + + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, + "Bank Field: BitOff %X, Off %X, Gran %X, Region %p, BankReg %p\n", + obj_desc->bank_field.start_field_bit_offset, + obj_desc->bank_field.base_byte_offset, + obj_desc->field.access_byte_width, + obj_desc->bank_field.region_obj, + obj_desc->bank_field.bank_obj)); + + /* + * Remember location in AML stream of the field unit + * opcode and operands -- since the bank_value + * operands must be evaluated. + */ + second_desc = obj_desc->common.next_object; + second_desc->extra.aml_start = + ACPI_CAST_PTR(union acpi_parse_object, + info->data_register_node)->named.data; + second_desc->extra.aml_length = + ACPI_CAST_PTR(union acpi_parse_object, + info->data_register_node)->named.length; + + break; + + case ACPI_TYPE_LOCAL_INDEX_FIELD: + + /* Get the Index and Data registers */ + + obj_desc->index_field.index_obj = + acpi_ns_get_attached_object(info->register_node); + obj_desc->index_field.data_obj = + acpi_ns_get_attached_object(info->data_register_node); + + if (!obj_desc->index_field.data_obj + || !obj_desc->index_field.index_obj) { + ACPI_ERROR((AE_INFO, + "Null Index Object during field prep")); + acpi_ut_delete_object_desc(obj_desc); + return_ACPI_STATUS(AE_AML_INTERNAL); + } + + /* An additional reference for the attached objects */ + + acpi_ut_add_reference(obj_desc->index_field.data_obj); + acpi_ut_add_reference(obj_desc->index_field.index_obj); + + /* + * April 2006: Changed to match MS behavior + * + * The value written to the Index register is the byte offset of the + * target field in units of the granularity of the index_field + * + * Previously, the value was calculated as an index in terms of the + * width of the Data register, as below: + * + * obj_desc->index_field.Value = (u32) + * (Info->field_bit_position / ACPI_MUL_8 ( + * obj_desc->Field.access_byte_width)); + * + * February 2006: Tried value as a byte offset: + * obj_desc->index_field.Value = (u32) + * ACPI_DIV_8 (Info->field_bit_position); + */ + obj_desc->index_field.value = + (u32) ACPI_ROUND_DOWN(ACPI_DIV_8(info->field_bit_position), + obj_desc->index_field. + access_byte_width); + + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, + "IndexField: BitOff %X, Off %X, Value %X, Gran %X, Index %p, Data %p\n", + obj_desc->index_field.start_field_bit_offset, + obj_desc->index_field.base_byte_offset, + obj_desc->index_field.value, + obj_desc->field.access_byte_width, + obj_desc->index_field.index_obj, + obj_desc->index_field.data_obj)); + break; + + default: + /* No other types should get here */ + break; + } + + /* + * Store the constructed descriptor (obj_desc) into the parent Node, + * preserving the current type of that named_obj. + */ + status = acpi_ns_attach_object(info->field_node, obj_desc, + acpi_ns_get_type(info->field_node)); + + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, + "Set NamedObj %p [%4.4s], ObjDesc %p\n", + info->field_node, + acpi_ut_get_node_name(info->field_node), obj_desc)); + + /* Remove local reference to the object */ + + acpi_ut_remove_reference(obj_desc); + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/exregion.c b/drivers/acpi/acpica/exregion.c new file mode 100644 index 000000000000..ceb269e45aba --- /dev/null +++ b/drivers/acpi/acpica/exregion.c @@ -0,0 +1,499 @@ + +/****************************************************************************** + * + * Module Name: exregion - ACPI default op_region (address space) handlers + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_EXECUTER +ACPI_MODULE_NAME("exregion") + +/******************************************************************************* + * + * FUNCTION: acpi_ex_system_memory_space_handler + * + * PARAMETERS: Function - Read or Write operation + * Address - Where in the space to read or write + * bit_width - Field width in bits (8, 16, or 32) + * Value - Pointer to in or out value + * handler_context - Pointer to Handler's context + * region_context - Pointer to context specific to the + * accessed region + * + * RETURN: Status + * + * DESCRIPTION: Handler for the System Memory address space (Op Region) + * + ******************************************************************************/ +acpi_status +acpi_ex_system_memory_space_handler(u32 function, + acpi_physical_address address, + u32 bit_width, + acpi_integer * value, + void *handler_context, void *region_context) +{ + acpi_status status = AE_OK; + void *logical_addr_ptr = NULL; + struct acpi_mem_space_context *mem_info = region_context; + u32 length; + acpi_size window_size; +#ifdef ACPI_MISALIGNMENT_NOT_SUPPORTED + u32 remainder; +#endif + + ACPI_FUNCTION_TRACE(ex_system_memory_space_handler); + + /* Validate and translate the bit width */ + + switch (bit_width) { + case 8: + length = 1; + break; + + case 16: + length = 2; + break; + + case 32: + length = 4; + break; + + case 64: + length = 8; + break; + + default: + ACPI_ERROR((AE_INFO, "Invalid SystemMemory width %d", + bit_width)); + return_ACPI_STATUS(AE_AML_OPERAND_VALUE); + } + +#ifdef ACPI_MISALIGNMENT_NOT_SUPPORTED + /* + * Hardware does not support non-aligned data transfers, we must verify + * the request. + */ + (void)acpi_ut_short_divide((acpi_integer) address, length, NULL, + &remainder); + if (remainder != 0) { + return_ACPI_STATUS(AE_AML_ALIGNMENT); + } +#endif + + /* + * Does the request fit into the cached memory mapping? + * Is 1) Address below the current mapping? OR + * 2) Address beyond the current mapping? + */ + if ((address < mem_info->mapped_physical_address) || + (((acpi_integer) address + length) > ((acpi_integer) + mem_info-> + mapped_physical_address + + mem_info->mapped_length))) { + /* + * The request cannot be resolved by the current memory mapping; + * Delete the existing mapping and create a new one. + */ + if (mem_info->mapped_length) { + + /* Valid mapping, delete it */ + + acpi_os_unmap_memory(mem_info->mapped_logical_address, + mem_info->mapped_length); + } + + /* + * Don't attempt to map memory beyond the end of the region, and + * constrain the maximum mapping size to something reasonable. + */ + window_size = (acpi_size) + ((mem_info->address + mem_info->length) - address); + + if (window_size > ACPI_SYSMEM_REGION_WINDOW_SIZE) { + window_size = ACPI_SYSMEM_REGION_WINDOW_SIZE; + } + + /* Create a new mapping starting at the address given */ + + mem_info->mapped_logical_address = + acpi_os_map_memory((acpi_physical_address) address, window_size); + if (!mem_info->mapped_logical_address) { + ACPI_ERROR((AE_INFO, + "Could not map memory at %8.8X%8.8X, size %X", + ACPI_FORMAT_NATIVE_UINT(address), + (u32) window_size)); + mem_info->mapped_length = 0; + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* Save the physical address and mapping size */ + + mem_info->mapped_physical_address = address; + mem_info->mapped_length = window_size; + } + + /* + * Generate a logical pointer corresponding to the address we want to + * access + */ + logical_addr_ptr = mem_info->mapped_logical_address + + ((acpi_integer) address - + (acpi_integer) mem_info->mapped_physical_address); + + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "System-Memory (width %d) R/W %d Address=%8.8X%8.8X\n", + bit_width, function, + ACPI_FORMAT_NATIVE_UINT(address))); + + /* + * Perform the memory read or write + * + * Note: For machines that do not support non-aligned transfers, the target + * address was checked for alignment above. We do not attempt to break the + * transfer up into smaller (byte-size) chunks because the AML specifically + * asked for a transfer width that the hardware may require. + */ + switch (function) { + case ACPI_READ: + + *value = 0; + switch (bit_width) { + case 8: + *value = (acpi_integer) ACPI_GET8(logical_addr_ptr); + break; + + case 16: + *value = (acpi_integer) ACPI_GET16(logical_addr_ptr); + break; + + case 32: + *value = (acpi_integer) ACPI_GET32(logical_addr_ptr); + break; + + case 64: + *value = (acpi_integer) ACPI_GET64(logical_addr_ptr); + break; + + default: + /* bit_width was already validated */ + break; + } + break; + + case ACPI_WRITE: + + switch (bit_width) { + case 8: + ACPI_SET8(logical_addr_ptr) = (u8) * value; + break; + + case 16: + ACPI_SET16(logical_addr_ptr) = (u16) * value; + break; + + case 32: + ACPI_SET32(logical_addr_ptr) = (u32) * value; + break; + + case 64: + ACPI_SET64(logical_addr_ptr) = (u64) * value; + break; + + default: + /* bit_width was already validated */ + break; + } + break; + + default: + status = AE_BAD_PARAMETER; + break; + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_system_io_space_handler + * + * PARAMETERS: Function - Read or Write operation + * Address - Where in the space to read or write + * bit_width - Field width in bits (8, 16, or 32) + * Value - Pointer to in or out value + * handler_context - Pointer to Handler's context + * region_context - Pointer to context specific to the + * accessed region + * + * RETURN: Status + * + * DESCRIPTION: Handler for the System IO address space (Op Region) + * + ******************************************************************************/ + +acpi_status +acpi_ex_system_io_space_handler(u32 function, + acpi_physical_address address, + u32 bit_width, + acpi_integer * value, + void *handler_context, void *region_context) +{ + acpi_status status = AE_OK; + u32 value32; + + ACPI_FUNCTION_TRACE(ex_system_io_space_handler); + + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "System-IO (width %d) R/W %d Address=%8.8X%8.8X\n", + bit_width, function, + ACPI_FORMAT_NATIVE_UINT(address))); + + /* Decode the function parameter */ + + switch (function) { + case ACPI_READ: + + status = acpi_os_read_port((acpi_io_address) address, + &value32, bit_width); + *value = value32; + break; + + case ACPI_WRITE: + + status = acpi_os_write_port((acpi_io_address) address, + (u32) * value, bit_width); + break; + + default: + status = AE_BAD_PARAMETER; + break; + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_pci_config_space_handler + * + * PARAMETERS: Function - Read or Write operation + * Address - Where in the space to read or write + * bit_width - Field width in bits (8, 16, or 32) + * Value - Pointer to in or out value + * handler_context - Pointer to Handler's context + * region_context - Pointer to context specific to the + * accessed region + * + * RETURN: Status + * + * DESCRIPTION: Handler for the PCI Config address space (Op Region) + * + ******************************************************************************/ + +acpi_status +acpi_ex_pci_config_space_handler(u32 function, + acpi_physical_address address, + u32 bit_width, + acpi_integer * value, + void *handler_context, void *region_context) +{ + acpi_status status = AE_OK; + struct acpi_pci_id *pci_id; + u16 pci_register; + u32 value32; + + ACPI_FUNCTION_TRACE(ex_pci_config_space_handler); + + /* + * The arguments to acpi_os(Read|Write)pci_configuration are: + * + * pci_segment is the PCI bus segment range 0-31 + * pci_bus is the PCI bus number range 0-255 + * pci_device is the PCI device number range 0-31 + * pci_function is the PCI device function number + * pci_register is the Config space register range 0-255 bytes + * + * Value - input value for write, output address for read + * + */ + pci_id = (struct acpi_pci_id *)region_context; + pci_register = (u16) (u32) address; + + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Pci-Config %d (%d) Seg(%04x) Bus(%04x) Dev(%04x) Func(%04x) Reg(%04x)\n", + function, bit_width, pci_id->segment, pci_id->bus, + pci_id->device, pci_id->function, pci_register)); + + switch (function) { + case ACPI_READ: + + status = acpi_os_read_pci_configuration(pci_id, pci_register, + &value32, bit_width); + *value = value32; + break; + + case ACPI_WRITE: + + status = acpi_os_write_pci_configuration(pci_id, pci_register, + *value, bit_width); + break; + + default: + + status = AE_BAD_PARAMETER; + break; + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_cmos_space_handler + * + * PARAMETERS: Function - Read or Write operation + * Address - Where in the space to read or write + * bit_width - Field width in bits (8, 16, or 32) + * Value - Pointer to in or out value + * handler_context - Pointer to Handler's context + * region_context - Pointer to context specific to the + * accessed region + * + * RETURN: Status + * + * DESCRIPTION: Handler for the CMOS address space (Op Region) + * + ******************************************************************************/ + +acpi_status +acpi_ex_cmos_space_handler(u32 function, + acpi_physical_address address, + u32 bit_width, + acpi_integer * value, + void *handler_context, void *region_context) +{ + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE(ex_cmos_space_handler); + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_pci_bar_space_handler + * + * PARAMETERS: Function - Read or Write operation + * Address - Where in the space to read or write + * bit_width - Field width in bits (8, 16, or 32) + * Value - Pointer to in or out value + * handler_context - Pointer to Handler's context + * region_context - Pointer to context specific to the + * accessed region + * + * RETURN: Status + * + * DESCRIPTION: Handler for the PCI bar_target address space (Op Region) + * + ******************************************************************************/ + +acpi_status +acpi_ex_pci_bar_space_handler(u32 function, + acpi_physical_address address, + u32 bit_width, + acpi_integer * value, + void *handler_context, void *region_context) +{ + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE(ex_pci_bar_space_handler); + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_data_table_space_handler + * + * PARAMETERS: Function - Read or Write operation + * Address - Where in the space to read or write + * bit_width - Field width in bits (8, 16, or 32) + * Value - Pointer to in or out value + * handler_context - Pointer to Handler's context + * region_context - Pointer to context specific to the + * accessed region + * + * RETURN: Status + * + * DESCRIPTION: Handler for the Data Table address space (Op Region) + * + ******************************************************************************/ + +acpi_status +acpi_ex_data_table_space_handler(u32 function, + acpi_physical_address address, + u32 bit_width, + acpi_integer * value, + void *handler_context, void *region_context) +{ + ACPI_FUNCTION_TRACE(ex_data_table_space_handler); + + /* Perform the memory read or write */ + + switch (function) { + case ACPI_READ: + + ACPI_MEMCPY(ACPI_CAST_PTR(char, value), + ACPI_PHYSADDR_TO_PTR(address), + ACPI_DIV_8(bit_width)); + break; + + case ACPI_WRITE: + default: + + return_ACPI_STATUS(AE_SUPPORT); + } + + return_ACPI_STATUS(AE_OK); +} diff --git a/drivers/acpi/acpica/exresnte.c b/drivers/acpi/acpica/exresnte.c new file mode 100644 index 000000000000..77df6e490e70 --- /dev/null +++ b/drivers/acpi/acpica/exresnte.c @@ -0,0 +1,278 @@ + +/****************************************************************************** + * + * Module Name: exresnte - AML Interpreter object resolution + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_EXECUTER +ACPI_MODULE_NAME("exresnte") + +/******************************************************************************* + * + * FUNCTION: acpi_ex_resolve_node_to_value + * + * PARAMETERS: object_ptr - Pointer to a location that contains + * a pointer to a NS node, and will receive a + * pointer to the resolved object. + * walk_state - Current state. Valid only if executing AML + * code. NULL if simply resolving an object + * + * RETURN: Status + * + * DESCRIPTION: Resolve a Namespace node to a valued object + * + * Note: for some of the data types, the pointer attached to the Node + * can be either a pointer to an actual internal object or a pointer into the + * AML stream itself. These types are currently: + * + * ACPI_TYPE_INTEGER + * ACPI_TYPE_STRING + * ACPI_TYPE_BUFFER + * ACPI_TYPE_MUTEX + * ACPI_TYPE_PACKAGE + * + ******************************************************************************/ +acpi_status +acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr, + struct acpi_walk_state *walk_state) +{ + acpi_status status = AE_OK; + union acpi_operand_object *source_desc; + union acpi_operand_object *obj_desc = NULL; + struct acpi_namespace_node *node; + acpi_object_type entry_type; + + ACPI_FUNCTION_TRACE(ex_resolve_node_to_value); + + /* + * The stack pointer points to a struct acpi_namespace_node (Node). Get the + * object that is attached to the Node. + */ + node = *object_ptr; + source_desc = acpi_ns_get_attached_object(node); + entry_type = acpi_ns_get_type((acpi_handle) node); + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Entry=%p SourceDesc=%p [%s]\n", + node, source_desc, + acpi_ut_get_type_name(entry_type))); + + if ((entry_type == ACPI_TYPE_LOCAL_ALIAS) || + (entry_type == ACPI_TYPE_LOCAL_METHOD_ALIAS)) { + + /* There is always exactly one level of indirection */ + + node = ACPI_CAST_PTR(struct acpi_namespace_node, node->object); + source_desc = acpi_ns_get_attached_object(node); + entry_type = acpi_ns_get_type((acpi_handle) node); + *object_ptr = node; + } + + /* + * Several object types require no further processing: + * 1) Device/Thermal objects don't have a "real" subobject, return the Node + * 2) Method locals and arguments have a pseudo-Node + * 3) 10/2007: Added method type to assist with Package construction. + */ + if ((entry_type == ACPI_TYPE_DEVICE) || + (entry_type == ACPI_TYPE_THERMAL) || + (entry_type == ACPI_TYPE_METHOD) || + (node->flags & (ANOBJ_METHOD_ARG | ANOBJ_METHOD_LOCAL))) { + return_ACPI_STATUS(AE_OK); + } + + if (!source_desc) { + ACPI_ERROR((AE_INFO, "No object attached to node %p", node)); + return_ACPI_STATUS(AE_AML_NO_OPERAND); + } + + /* + * Action is based on the type of the Node, which indicates the type + * of the attached object or pointer + */ + switch (entry_type) { + case ACPI_TYPE_PACKAGE: + + if (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_PACKAGE) { + ACPI_ERROR((AE_INFO, "Object not a Package, type %s", + acpi_ut_get_object_type_name(source_desc))); + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + + status = acpi_ds_get_package_arguments(source_desc); + if (ACPI_SUCCESS(status)) { + + /* Return an additional reference to the object */ + + obj_desc = source_desc; + acpi_ut_add_reference(obj_desc); + } + break; + + case ACPI_TYPE_BUFFER: + + if (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_BUFFER) { + ACPI_ERROR((AE_INFO, "Object not a Buffer, type %s", + acpi_ut_get_object_type_name(source_desc))); + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + + status = acpi_ds_get_buffer_arguments(source_desc); + if (ACPI_SUCCESS(status)) { + + /* Return an additional reference to the object */ + + obj_desc = source_desc; + acpi_ut_add_reference(obj_desc); + } + break; + + case ACPI_TYPE_STRING: + + if (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_STRING) { + ACPI_ERROR((AE_INFO, "Object not a String, type %s", + acpi_ut_get_object_type_name(source_desc))); + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + + /* Return an additional reference to the object */ + + obj_desc = source_desc; + acpi_ut_add_reference(obj_desc); + break; + + case ACPI_TYPE_INTEGER: + + if (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_INTEGER) { + ACPI_ERROR((AE_INFO, "Object not a Integer, type %s", + acpi_ut_get_object_type_name(source_desc))); + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + + /* Return an additional reference to the object */ + + obj_desc = source_desc; + acpi_ut_add_reference(obj_desc); + break; + + case ACPI_TYPE_BUFFER_FIELD: + case ACPI_TYPE_LOCAL_REGION_FIELD: + case ACPI_TYPE_LOCAL_BANK_FIELD: + case ACPI_TYPE_LOCAL_INDEX_FIELD: + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "FieldRead Node=%p SourceDesc=%p Type=%X\n", + node, source_desc, entry_type)); + + status = + acpi_ex_read_data_from_field(walk_state, source_desc, + &obj_desc); + break; + + /* For these objects, just return the object attached to the Node */ + + case ACPI_TYPE_MUTEX: + case ACPI_TYPE_POWER: + case ACPI_TYPE_PROCESSOR: + case ACPI_TYPE_EVENT: + case ACPI_TYPE_REGION: + + /* Return an additional reference to the object */ + + obj_desc = source_desc; + acpi_ut_add_reference(obj_desc); + break; + + /* TYPE_ANY is untyped, and thus there is no object associated with it */ + + case ACPI_TYPE_ANY: + + ACPI_ERROR((AE_INFO, + "Untyped entry %p, no attached object!", node)); + + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); /* Cannot be AE_TYPE */ + + case ACPI_TYPE_LOCAL_REFERENCE: + + switch (source_desc->reference.class) { + case ACPI_REFCLASS_TABLE: /* This is a ddb_handle */ + case ACPI_REFCLASS_REFOF: + case ACPI_REFCLASS_INDEX: + + /* Return an additional reference to the object */ + + obj_desc = source_desc; + acpi_ut_add_reference(obj_desc); + break; + + default: + /* No named references are allowed here */ + + ACPI_ERROR((AE_INFO, + "Unsupported Reference type %X", + source_desc->reference.class)); + + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + break; + + default: + + /* Default case is for unknown types */ + + ACPI_ERROR((AE_INFO, + "Node %p - Unknown object type %X", + node, entry_type)); + + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + + } /* switch (entry_type) */ + + /* Return the object descriptor */ + + *object_ptr = (void *)obj_desc; + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/exresolv.c b/drivers/acpi/acpica/exresolv.c new file mode 100644 index 000000000000..42adde01bc93 --- /dev/null +++ b/drivers/acpi/acpica/exresolv.c @@ -0,0 +1,551 @@ + +/****************************************************************************** + * + * Module Name: exresolv - AML Interpreter object resolution + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_EXECUTER +ACPI_MODULE_NAME("exresolv") + +/* Local prototypes */ +static acpi_status +acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr, + struct acpi_walk_state *walk_state); + +/******************************************************************************* + * + * FUNCTION: acpi_ex_resolve_to_value + * + * PARAMETERS: **stack_ptr - Points to entry on obj_stack, which can + * be either an (union acpi_operand_object *) + * or an acpi_handle. + * walk_state - Current method state + * + * RETURN: Status + * + * DESCRIPTION: Convert Reference objects to values + * + ******************************************************************************/ + +acpi_status +acpi_ex_resolve_to_value(union acpi_operand_object **stack_ptr, + struct acpi_walk_state *walk_state) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE_PTR(ex_resolve_to_value, stack_ptr); + + if (!stack_ptr || !*stack_ptr) { + ACPI_ERROR((AE_INFO, "Internal - null pointer")); + return_ACPI_STATUS(AE_AML_NO_OPERAND); + } + + /* + * The entity pointed to by the stack_ptr can be either + * 1) A valid union acpi_operand_object, or + * 2) A struct acpi_namespace_node (named_obj) + */ + if (ACPI_GET_DESCRIPTOR_TYPE(*stack_ptr) == ACPI_DESC_TYPE_OPERAND) { + status = acpi_ex_resolve_object_to_value(stack_ptr, walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + if (!*stack_ptr) { + ACPI_ERROR((AE_INFO, "Internal - null pointer")); + return_ACPI_STATUS(AE_AML_NO_OPERAND); + } + } + + /* + * Object on the stack may have changed if acpi_ex_resolve_object_to_value() + * was called (i.e., we can't use an _else_ here.) + */ + if (ACPI_GET_DESCRIPTOR_TYPE(*stack_ptr) == ACPI_DESC_TYPE_NAMED) { + status = + acpi_ex_resolve_node_to_value(ACPI_CAST_INDIRECT_PTR + (struct acpi_namespace_node, + stack_ptr), walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Resolved object %p\n", *stack_ptr)); + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_resolve_object_to_value + * + * PARAMETERS: stack_ptr - Pointer to an internal object + * walk_state - Current method state + * + * RETURN: Status + * + * DESCRIPTION: Retrieve the value from an internal object. The Reference type + * uses the associated AML opcode to determine the value. + * + ******************************************************************************/ + +static acpi_status +acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr, + struct acpi_walk_state *walk_state) +{ + acpi_status status = AE_OK; + union acpi_operand_object *stack_desc; + union acpi_operand_object *obj_desc = NULL; + u8 ref_type; + + ACPI_FUNCTION_TRACE(ex_resolve_object_to_value); + + stack_desc = *stack_ptr; + + /* This is an union acpi_operand_object */ + + switch (ACPI_GET_OBJECT_TYPE(stack_desc)) { + case ACPI_TYPE_LOCAL_REFERENCE: + + ref_type = stack_desc->reference.class; + + switch (ref_type) { + case ACPI_REFCLASS_LOCAL: + case ACPI_REFCLASS_ARG: + + /* + * Get the local from the method's state info + * Note: this increments the local's object reference count + */ + status = acpi_ds_method_data_get_value(ref_type, + stack_desc-> + reference.value, + walk_state, + &obj_desc); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "[Arg/Local %X] ValueObj is %p\n", + stack_desc->reference.value, + obj_desc)); + + /* + * Now we can delete the original Reference Object and + * replace it with the resolved value + */ + acpi_ut_remove_reference(stack_desc); + *stack_ptr = obj_desc; + break; + + case ACPI_REFCLASS_INDEX: + + switch (stack_desc->reference.target_type) { + case ACPI_TYPE_BUFFER_FIELD: + + /* Just return - do not dereference */ + break; + + case ACPI_TYPE_PACKAGE: + + /* If method call or copy_object - do not dereference */ + + if ((walk_state->opcode == + AML_INT_METHODCALL_OP) + || (walk_state->opcode == AML_COPY_OP)) { + break; + } + + /* Otherwise, dereference the package_index to a package element */ + + obj_desc = *stack_desc->reference.where; + if (obj_desc) { + /* + * Valid object descriptor, copy pointer to return value + * (i.e., dereference the package index) + * Delete the ref object, increment the returned object + */ + acpi_ut_remove_reference(stack_desc); + acpi_ut_add_reference(obj_desc); + *stack_ptr = obj_desc; + } else { + /* + * A NULL object descriptor means an uninitialized element of + * the package, can't dereference it + */ + ACPI_ERROR((AE_INFO, + "Attempt to dereference an Index to NULL package element Idx=%p", + stack_desc)); + status = AE_AML_UNINITIALIZED_ELEMENT; + } + break; + + default: + + /* Invalid reference object */ + + ACPI_ERROR((AE_INFO, + "Unknown TargetType %X in Index/Reference object %p", + stack_desc->reference.target_type, + stack_desc)); + status = AE_AML_INTERNAL; + break; + } + break; + + case ACPI_REFCLASS_REFOF: + case ACPI_REFCLASS_DEBUG: + case ACPI_REFCLASS_TABLE: + + /* Just leave the object as-is, do not dereference */ + + break; + + case ACPI_REFCLASS_NAME: /* Reference to a named object */ + + /* Dereference the name */ + + if ((stack_desc->reference.node->type == + ACPI_TYPE_DEVICE) + || (stack_desc->reference.node->type == + ACPI_TYPE_THERMAL)) { + + /* These node types do not have 'real' subobjects */ + + *stack_ptr = (void *)stack_desc->reference.node; + } else { + /* Get the object pointed to by the namespace node */ + + *stack_ptr = + (stack_desc->reference.node)->object; + acpi_ut_add_reference(*stack_ptr); + } + + acpi_ut_remove_reference(stack_desc); + break; + + default: + + ACPI_ERROR((AE_INFO, + "Unknown Reference type %X in %p", ref_type, + stack_desc)); + status = AE_AML_INTERNAL; + break; + } + break; + + case ACPI_TYPE_BUFFER: + + status = acpi_ds_get_buffer_arguments(stack_desc); + break; + + case ACPI_TYPE_PACKAGE: + + status = acpi_ds_get_package_arguments(stack_desc); + break; + + case ACPI_TYPE_BUFFER_FIELD: + case ACPI_TYPE_LOCAL_REGION_FIELD: + case ACPI_TYPE_LOCAL_BANK_FIELD: + case ACPI_TYPE_LOCAL_INDEX_FIELD: + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "FieldRead SourceDesc=%p Type=%X\n", + stack_desc, + ACPI_GET_OBJECT_TYPE(stack_desc))); + + status = + acpi_ex_read_data_from_field(walk_state, stack_desc, + &obj_desc); + + /* Remove a reference to the original operand, then override */ + + acpi_ut_remove_reference(*stack_ptr); + *stack_ptr = (void *)obj_desc; + break; + + default: + break; + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_resolve_multiple + * + * PARAMETERS: walk_state - Current state (contains AML opcode) + * Operand - Starting point for resolution + * return_type - Where the object type is returned + * return_desc - Where the resolved object is returned + * + * RETURN: Status + * + * DESCRIPTION: Return the base object and type. Traverse a reference list if + * necessary to get to the base object. + * + ******************************************************************************/ + +acpi_status +acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state, + union acpi_operand_object *operand, + acpi_object_type * return_type, + union acpi_operand_object **return_desc) +{ + union acpi_operand_object *obj_desc = (void *)operand; + struct acpi_namespace_node *node; + acpi_object_type type; + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_ex_resolve_multiple); + + /* Operand can be either a namespace node or an operand descriptor */ + + switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) { + case ACPI_DESC_TYPE_OPERAND: + type = obj_desc->common.type; + break; + + case ACPI_DESC_TYPE_NAMED: + type = ((struct acpi_namespace_node *)obj_desc)->type; + obj_desc = + acpi_ns_get_attached_object((struct acpi_namespace_node *) + obj_desc); + + /* If we had an Alias node, use the attached object for type info */ + + if (type == ACPI_TYPE_LOCAL_ALIAS) { + type = ((struct acpi_namespace_node *)obj_desc)->type; + obj_desc = + acpi_ns_get_attached_object((struct + acpi_namespace_node *) + obj_desc); + } + break; + + default: + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + + /* If type is anything other than a reference, we are done */ + + if (type != ACPI_TYPE_LOCAL_REFERENCE) { + goto exit; + } + + /* + * For reference objects created via the ref_of, Index, or Load/load_table + * operators, we need to get to the base object (as per the ACPI + * specification of the object_type and size_of operators). This means + * traversing the list of possibly many nested references. + */ + while (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_REFERENCE) { + switch (obj_desc->reference.class) { + case ACPI_REFCLASS_REFOF: + case ACPI_REFCLASS_NAME: + + /* Dereference the reference pointer */ + + if (obj_desc->reference.class == ACPI_REFCLASS_REFOF) { + node = obj_desc->reference.object; + } else { /* AML_INT_NAMEPATH_OP */ + + node = obj_desc->reference.node; + } + + /* All "References" point to a NS node */ + + if (ACPI_GET_DESCRIPTOR_TYPE(node) != + ACPI_DESC_TYPE_NAMED) { + ACPI_ERROR((AE_INFO, "Not a NS node %p [%s]", + node, + acpi_ut_get_descriptor_name(node))); + return_ACPI_STATUS(AE_AML_INTERNAL); + } + + /* Get the attached object */ + + obj_desc = acpi_ns_get_attached_object(node); + if (!obj_desc) { + + /* No object, use the NS node type */ + + type = acpi_ns_get_type(node); + goto exit; + } + + /* Check for circular references */ + + if (obj_desc == operand) { + return_ACPI_STATUS(AE_AML_CIRCULAR_REFERENCE); + } + break; + + case ACPI_REFCLASS_INDEX: + + /* Get the type of this reference (index into another object) */ + + type = obj_desc->reference.target_type; + if (type != ACPI_TYPE_PACKAGE) { + goto exit; + } + + /* + * The main object is a package, we want to get the type + * of the individual package element that is referenced by + * the index. + * + * This could of course in turn be another reference object. + */ + obj_desc = *(obj_desc->reference.where); + if (!obj_desc) { + + /* NULL package elements are allowed */ + + type = 0; /* Uninitialized */ + goto exit; + } + break; + + case ACPI_REFCLASS_TABLE: + + type = ACPI_TYPE_DDB_HANDLE; + goto exit; + + case ACPI_REFCLASS_LOCAL: + case ACPI_REFCLASS_ARG: + + if (return_desc) { + status = + acpi_ds_method_data_get_value(obj_desc-> + reference. + class, + obj_desc-> + reference. + value, + walk_state, + &obj_desc); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + acpi_ut_remove_reference(obj_desc); + } else { + status = + acpi_ds_method_data_get_node(obj_desc-> + reference. + class, + obj_desc-> + reference. + value, + walk_state, + &node); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + obj_desc = acpi_ns_get_attached_object(node); + if (!obj_desc) { + type = ACPI_TYPE_ANY; + goto exit; + } + } + break; + + case ACPI_REFCLASS_DEBUG: + + /* The Debug Object is of type "DebugObject" */ + + type = ACPI_TYPE_DEBUG_OBJECT; + goto exit; + + default: + + ACPI_ERROR((AE_INFO, + "Unknown Reference Class %2.2X", + obj_desc->reference.class)); + return_ACPI_STATUS(AE_AML_INTERNAL); + } + } + + /* + * Now we are guaranteed to have an object that has not been created + * via the ref_of or Index operators. + */ + type = ACPI_GET_OBJECT_TYPE(obj_desc); + + exit: + /* Convert internal types to external types */ + + switch (type) { + case ACPI_TYPE_LOCAL_REGION_FIELD: + case ACPI_TYPE_LOCAL_BANK_FIELD: + case ACPI_TYPE_LOCAL_INDEX_FIELD: + + type = ACPI_TYPE_FIELD_UNIT; + break; + + case ACPI_TYPE_LOCAL_SCOPE: + + /* Per ACPI Specification, Scope is untyped */ + + type = ACPI_TYPE_ANY; + break; + + default: + /* No change to Type required */ + break; + } + + *return_type = type; + if (return_desc) { + *return_desc = obj_desc; + } + return_ACPI_STATUS(AE_OK); +} diff --git a/drivers/acpi/acpica/exresop.c b/drivers/acpi/acpica/exresop.c new file mode 100644 index 000000000000..7602eaf5c479 --- /dev/null +++ b/drivers/acpi/acpica/exresop.c @@ -0,0 +1,701 @@ + +/****************************************************************************** + * + * Module Name: exresop - AML Interpreter operand/object resolution + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_EXECUTER +ACPI_MODULE_NAME("exresop") + +/* Local prototypes */ +static acpi_status +acpi_ex_check_object_type(acpi_object_type type_needed, + acpi_object_type this_type, void *object); + +/******************************************************************************* + * + * FUNCTION: acpi_ex_check_object_type + * + * PARAMETERS: type_needed Object type needed + * this_type Actual object type + * Object Object pointer + * + * RETURN: Status + * + * DESCRIPTION: Check required type against actual type + * + ******************************************************************************/ + +static acpi_status +acpi_ex_check_object_type(acpi_object_type type_needed, + acpi_object_type this_type, void *object) +{ + ACPI_FUNCTION_ENTRY(); + + if (type_needed == ACPI_TYPE_ANY) { + + /* All types OK, so we don't perform any typechecks */ + + return (AE_OK); + } + + if (type_needed == ACPI_TYPE_LOCAL_REFERENCE) { + /* + * Allow the AML "Constant" opcodes (Zero, One, etc.) to be reference + * objects and thus allow them to be targets. (As per the ACPI + * specification, a store to a constant is a noop.) + */ + if ((this_type == ACPI_TYPE_INTEGER) && + (((union acpi_operand_object *)object)->common. + flags & AOPOBJ_AML_CONSTANT)) { + return (AE_OK); + } + } + + if (type_needed != this_type) { + ACPI_ERROR((AE_INFO, + "Needed type [%s], found [%s] %p", + acpi_ut_get_type_name(type_needed), + acpi_ut_get_type_name(this_type), object)); + + return (AE_AML_OPERAND_TYPE); + } + + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_resolve_operands + * + * PARAMETERS: Opcode - Opcode being interpreted + * stack_ptr - Pointer to the operand stack to be + * resolved + * walk_state - Current state + * + * RETURN: Status + * + * DESCRIPTION: Convert multiple input operands to the types required by the + * target operator. + * + * Each 5-bit group in arg_types represents one required + * operand and indicates the required Type. The corresponding operand + * will be converted to the required type if possible, otherwise we + * abort with an exception. + * + ******************************************************************************/ + +acpi_status +acpi_ex_resolve_operands(u16 opcode, + union acpi_operand_object ** stack_ptr, + struct acpi_walk_state * walk_state) +{ + union acpi_operand_object *obj_desc; + acpi_status status = AE_OK; + u8 object_type; + u32 arg_types; + const struct acpi_opcode_info *op_info; + u32 this_arg_type; + acpi_object_type type_needed; + u16 target_op = 0; + + ACPI_FUNCTION_TRACE_U32(ex_resolve_operands, opcode); + + op_info = acpi_ps_get_opcode_info(opcode); + if (op_info->class == AML_CLASS_UNKNOWN) { + return_ACPI_STATUS(AE_AML_BAD_OPCODE); + } + + arg_types = op_info->runtime_args; + if (arg_types == ARGI_INVALID_OPCODE) { + ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", opcode)); + + return_ACPI_STATUS(AE_AML_INTERNAL); + } + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Opcode %X [%s] RequiredOperandTypes=%8.8X\n", + opcode, op_info->name, arg_types)); + + /* + * Normal exit is with (arg_types == 0) at end of argument list. + * Function will return an exception from within the loop upon + * finding an entry which is not (or cannot be converted + * to) the required type; if stack underflows; or upon + * finding a NULL stack entry (which should not happen). + */ + while (GET_CURRENT_ARG_TYPE(arg_types)) { + if (!stack_ptr || !*stack_ptr) { + ACPI_ERROR((AE_INFO, "Null stack entry at %p", + stack_ptr)); + + return_ACPI_STATUS(AE_AML_INTERNAL); + } + + /* Extract useful items */ + + obj_desc = *stack_ptr; + + /* Decode the descriptor type */ + + switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) { + case ACPI_DESC_TYPE_NAMED: + + /* Namespace Node */ + + object_type = + ((struct acpi_namespace_node *)obj_desc)->type; + + /* + * Resolve an alias object. The construction of these objects + * guarantees that there is only one level of alias indirection; + * thus, the attached object is always the aliased namespace node + */ + if (object_type == ACPI_TYPE_LOCAL_ALIAS) { + obj_desc = + acpi_ns_get_attached_object((struct + acpi_namespace_node + *)obj_desc); + *stack_ptr = obj_desc; + object_type = + ((struct acpi_namespace_node *)obj_desc)-> + type; + } + break; + + case ACPI_DESC_TYPE_OPERAND: + + /* ACPI internal object */ + + object_type = ACPI_GET_OBJECT_TYPE(obj_desc); + + /* Check for bad acpi_object_type */ + + if (!acpi_ut_valid_object_type(object_type)) { + ACPI_ERROR((AE_INFO, + "Bad operand object type [%X]", + object_type)); + + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + + if (object_type == (u8) ACPI_TYPE_LOCAL_REFERENCE) { + + /* Validate the Reference */ + + switch (obj_desc->reference.class) { + case ACPI_REFCLASS_DEBUG: + + target_op = AML_DEBUG_OP; + + /*lint -fallthrough */ + + case ACPI_REFCLASS_ARG: + case ACPI_REFCLASS_LOCAL: + case ACPI_REFCLASS_INDEX: + case ACPI_REFCLASS_REFOF: + case ACPI_REFCLASS_TABLE: /* ddb_handle from LOAD_OP or LOAD_TABLE_OP */ + case ACPI_REFCLASS_NAME: /* Reference to a named object */ + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Operand is a Reference, Class [%s] %2.2X\n", + acpi_ut_get_reference_name + (obj_desc), + obj_desc->reference. + class)); + break; + + default: + + ACPI_ERROR((AE_INFO, + "Unknown Reference Class %2.2X in %p", + obj_desc->reference.class, + obj_desc)); + + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + } + break; + + default: + + /* Invalid descriptor */ + + ACPI_ERROR((AE_INFO, "Invalid descriptor %p [%s]", + obj_desc, + acpi_ut_get_descriptor_name(obj_desc))); + + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + + /* Get one argument type, point to the next */ + + this_arg_type = GET_CURRENT_ARG_TYPE(arg_types); + INCREMENT_ARG_LIST(arg_types); + + /* + * Handle cases where the object does not need to be + * resolved to a value + */ + switch (this_arg_type) { + case ARGI_REF_OR_STRING: /* Can be a String or Reference */ + + if ((ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == + ACPI_DESC_TYPE_OPERAND) + && (ACPI_GET_OBJECT_TYPE(obj_desc) == + ACPI_TYPE_STRING)) { + /* + * String found - the string references a named object and + * must be resolved to a node + */ + goto next_operand; + } + + /* + * Else not a string - fall through to the normal Reference + * case below + */ + /*lint -fallthrough */ + + case ARGI_REFERENCE: /* References: */ + case ARGI_INTEGER_REF: + case ARGI_OBJECT_REF: + case ARGI_DEVICE_REF: + case ARGI_TARGETREF: /* Allows implicit conversion rules before store */ + case ARGI_FIXED_TARGET: /* No implicit conversion before store to target */ + case ARGI_SIMPLE_TARGET: /* Name, Local, or Arg - no implicit conversion */ + + /* + * Need an operand of type ACPI_TYPE_LOCAL_REFERENCE + * A Namespace Node is OK as-is + */ + if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == + ACPI_DESC_TYPE_NAMED) { + goto next_operand; + } + + status = + acpi_ex_check_object_type(ACPI_TYPE_LOCAL_REFERENCE, + object_type, obj_desc); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + goto next_operand; + + case ARGI_DATAREFOBJ: /* Store operator only */ + + /* + * We don't want to resolve index_op reference objects during + * a store because this would be an implicit de_ref_of operation. + * Instead, we just want to store the reference object. + * -- All others must be resolved below. + */ + if ((opcode == AML_STORE_OP) && + (ACPI_GET_OBJECT_TYPE(*stack_ptr) == + ACPI_TYPE_LOCAL_REFERENCE) + && ((*stack_ptr)->reference.class == ACPI_REFCLASS_INDEX)) { + goto next_operand; + } + break; + + default: + /* All cases covered above */ + break; + } + + /* + * Resolve this object to a value + */ + status = acpi_ex_resolve_to_value(stack_ptr, walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Get the resolved object */ + + obj_desc = *stack_ptr; + + /* + * Check the resulting object (value) type + */ + switch (this_arg_type) { + /* + * For the simple cases, only one type of resolved object + * is allowed + */ + case ARGI_MUTEX: + + /* Need an operand of type ACPI_TYPE_MUTEX */ + + type_needed = ACPI_TYPE_MUTEX; + break; + + case ARGI_EVENT: + + /* Need an operand of type ACPI_TYPE_EVENT */ + + type_needed = ACPI_TYPE_EVENT; + break; + + case ARGI_PACKAGE: /* Package */ + + /* Need an operand of type ACPI_TYPE_PACKAGE */ + + type_needed = ACPI_TYPE_PACKAGE; + break; + + case ARGI_ANYTYPE: + + /* Any operand type will do */ + + type_needed = ACPI_TYPE_ANY; + break; + + case ARGI_DDBHANDLE: + + /* Need an operand of type ACPI_TYPE_DDB_HANDLE */ + + type_needed = ACPI_TYPE_LOCAL_REFERENCE; + break; + + /* + * The more complex cases allow multiple resolved object types + */ + case ARGI_INTEGER: + + /* + * Need an operand of type ACPI_TYPE_INTEGER, + * But we can implicitly convert from a STRING or BUFFER + * Aka - "Implicit Source Operand Conversion" + */ + status = + acpi_ex_convert_to_integer(obj_desc, stack_ptr, 16); + if (ACPI_FAILURE(status)) { + if (status == AE_TYPE) { + ACPI_ERROR((AE_INFO, + "Needed [Integer/String/Buffer], found [%s] %p", + acpi_ut_get_object_type_name + (obj_desc), obj_desc)); + + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + + return_ACPI_STATUS(status); + } + + if (obj_desc != *stack_ptr) { + acpi_ut_remove_reference(obj_desc); + } + goto next_operand; + + case ARGI_BUFFER: + + /* + * Need an operand of type ACPI_TYPE_BUFFER, + * But we can implicitly convert from a STRING or INTEGER + * Aka - "Implicit Source Operand Conversion" + */ + status = acpi_ex_convert_to_buffer(obj_desc, stack_ptr); + if (ACPI_FAILURE(status)) { + if (status == AE_TYPE) { + ACPI_ERROR((AE_INFO, + "Needed [Integer/String/Buffer], found [%s] %p", + acpi_ut_get_object_type_name + (obj_desc), obj_desc)); + + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + + return_ACPI_STATUS(status); + } + + if (obj_desc != *stack_ptr) { + acpi_ut_remove_reference(obj_desc); + } + goto next_operand; + + case ARGI_STRING: + + /* + * Need an operand of type ACPI_TYPE_STRING, + * But we can implicitly convert from a BUFFER or INTEGER + * Aka - "Implicit Source Operand Conversion" + */ + status = acpi_ex_convert_to_string(obj_desc, stack_ptr, + ACPI_IMPLICIT_CONVERT_HEX); + if (ACPI_FAILURE(status)) { + if (status == AE_TYPE) { + ACPI_ERROR((AE_INFO, + "Needed [Integer/String/Buffer], found [%s] %p", + acpi_ut_get_object_type_name + (obj_desc), obj_desc)); + + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + + return_ACPI_STATUS(status); + } + + if (obj_desc != *stack_ptr) { + acpi_ut_remove_reference(obj_desc); + } + goto next_operand; + + case ARGI_COMPUTEDATA: + + /* Need an operand of type INTEGER, STRING or BUFFER */ + + switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { + case ACPI_TYPE_INTEGER: + case ACPI_TYPE_STRING: + case ACPI_TYPE_BUFFER: + + /* Valid operand */ + break; + + default: + ACPI_ERROR((AE_INFO, + "Needed [Integer/String/Buffer], found [%s] %p", + acpi_ut_get_object_type_name + (obj_desc), obj_desc)); + + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + goto next_operand; + + case ARGI_BUFFER_OR_STRING: + + /* Need an operand of type STRING or BUFFER */ + + switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { + case ACPI_TYPE_STRING: + case ACPI_TYPE_BUFFER: + + /* Valid operand */ + break; + + case ACPI_TYPE_INTEGER: + + /* Highest priority conversion is to type Buffer */ + + status = + acpi_ex_convert_to_buffer(obj_desc, + stack_ptr); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + if (obj_desc != *stack_ptr) { + acpi_ut_remove_reference(obj_desc); + } + break; + + default: + ACPI_ERROR((AE_INFO, + "Needed [Integer/String/Buffer], found [%s] %p", + acpi_ut_get_object_type_name + (obj_desc), obj_desc)); + + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + goto next_operand; + + case ARGI_DATAOBJECT: + /* + * ARGI_DATAOBJECT is only used by the size_of operator. + * Need a buffer, string, package, or ref_of reference. + * + * The only reference allowed here is a direct reference to + * a namespace node. + */ + switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { + case ACPI_TYPE_PACKAGE: + case ACPI_TYPE_STRING: + case ACPI_TYPE_BUFFER: + case ACPI_TYPE_LOCAL_REFERENCE: + + /* Valid operand */ + break; + + default: + ACPI_ERROR((AE_INFO, + "Needed [Buffer/String/Package/Reference], found [%s] %p", + acpi_ut_get_object_type_name + (obj_desc), obj_desc)); + + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + goto next_operand; + + case ARGI_COMPLEXOBJ: + + /* Need a buffer or package or (ACPI 2.0) String */ + + switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { + case ACPI_TYPE_PACKAGE: + case ACPI_TYPE_STRING: + case ACPI_TYPE_BUFFER: + + /* Valid operand */ + break; + + default: + ACPI_ERROR((AE_INFO, + "Needed [Buffer/String/Package], found [%s] %p", + acpi_ut_get_object_type_name + (obj_desc), obj_desc)); + + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + goto next_operand; + + case ARGI_REGION_OR_BUFFER: /* Used by Load() only */ + + /* Need an operand of type REGION or a BUFFER (which could be a resolved region field) */ + + switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { + case ACPI_TYPE_BUFFER: + case ACPI_TYPE_REGION: + + /* Valid operand */ + break; + + default: + ACPI_ERROR((AE_INFO, + "Needed [Region/Buffer], found [%s] %p", + acpi_ut_get_object_type_name + (obj_desc), obj_desc)); + + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + goto next_operand; + + case ARGI_DATAREFOBJ: + + /* Used by the Store() operator only */ + + switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { + case ACPI_TYPE_INTEGER: + case ACPI_TYPE_PACKAGE: + case ACPI_TYPE_STRING: + case ACPI_TYPE_BUFFER: + case ACPI_TYPE_BUFFER_FIELD: + case ACPI_TYPE_LOCAL_REFERENCE: + case ACPI_TYPE_LOCAL_REGION_FIELD: + case ACPI_TYPE_LOCAL_BANK_FIELD: + case ACPI_TYPE_LOCAL_INDEX_FIELD: + case ACPI_TYPE_DDB_HANDLE: + + /* Valid operand */ + break; + + default: + + if (acpi_gbl_enable_interpreter_slack) { + /* + * Enable original behavior of Store(), allowing any and all + * objects as the source operand. The ACPI spec does not + * allow this, however. + */ + break; + } + + if (target_op == AML_DEBUG_OP) { + + /* Allow store of any object to the Debug object */ + + break; + } + + ACPI_ERROR((AE_INFO, + "Needed Integer/Buffer/String/Package/Ref/Ddb], found [%s] %p", + acpi_ut_get_object_type_name + (obj_desc), obj_desc)); + + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + goto next_operand; + + default: + + /* Unknown type */ + + ACPI_ERROR((AE_INFO, + "Internal - Unknown ARGI (required operand) type %X", + this_arg_type)); + + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* + * Make sure that the original object was resolved to the + * required object type (Simple cases only). + */ + status = acpi_ex_check_object_type(type_needed, + ACPI_GET_OBJECT_TYPE + (*stack_ptr), *stack_ptr); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + next_operand: + /* + * If more operands needed, decrement stack_ptr to point + * to next operand on stack + */ + if (GET_CURRENT_ARG_TYPE(arg_types)) { + stack_ptr--; + } + } + + ACPI_DUMP_OPERANDS(walk_state->operands, + acpi_ps_get_opcode_name(opcode), + walk_state->num_operands); + + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/exstore.c b/drivers/acpi/acpica/exstore.c new file mode 100644 index 000000000000..6f5647fdc006 --- /dev/null +++ b/drivers/acpi/acpica/exstore.c @@ -0,0 +1,716 @@ + +/****************************************************************************** + * + * Module Name: exstore - AML Interpreter object store support + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_EXECUTER +ACPI_MODULE_NAME("exstore") + +/* Local prototypes */ +static void +acpi_ex_do_debug_object(union acpi_operand_object *source_desc, + u32 level, u32 index); + +static acpi_status +acpi_ex_store_object_to_index(union acpi_operand_object *val_desc, + union acpi_operand_object *dest_desc, + struct acpi_walk_state *walk_state); + +/******************************************************************************* + * + * FUNCTION: acpi_ex_do_debug_object + * + * PARAMETERS: source_desc - Value to be stored + * Level - Indentation level (used for packages) + * Index - Current package element, zero if not pkg + * + * RETURN: None + * + * DESCRIPTION: Handles stores to the Debug Object. + * + ******************************************************************************/ + +static void +acpi_ex_do_debug_object(union acpi_operand_object *source_desc, + u32 level, u32 index) +{ + u32 i; + + ACPI_FUNCTION_TRACE_PTR(ex_do_debug_object, source_desc); + + /* Print line header as long as we are not in the middle of an object display */ + + if (!((level > 0) && index == 0)) { + ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[ACPI Debug] %*s", + level, " ")); + } + + /* Display index for package output only */ + + if (index > 0) { + ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, + "(%.2u) ", index - 1)); + } + + if (!source_desc) { + ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[Null Object]\n")); + return_VOID; + } + + if (ACPI_GET_DESCRIPTOR_TYPE(source_desc) == ACPI_DESC_TYPE_OPERAND) { + ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "%s ", + acpi_ut_get_object_type_name + (source_desc))); + + if (!acpi_ut_valid_internal_object(source_desc)) { + ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, + "%p, Invalid Internal Object!\n", + source_desc)); + return_VOID; + } + } else if (ACPI_GET_DESCRIPTOR_TYPE(source_desc) == + ACPI_DESC_TYPE_NAMED) { + ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "%s: %p\n", + acpi_ut_get_type_name(((struct + acpi_namespace_node + *)source_desc)-> + type), + source_desc)); + return_VOID; + } else { + return_VOID; + } + + /* source_desc is of type ACPI_DESC_TYPE_OPERAND */ + + switch (ACPI_GET_OBJECT_TYPE(source_desc)) { + case ACPI_TYPE_INTEGER: + + /* Output correct integer width */ + + if (acpi_gbl_integer_byte_width == 4) { + ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "0x%8.8X\n", + (u32) source_desc->integer. + value)); + } else { + ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, + "0x%8.8X%8.8X\n", + ACPI_FORMAT_UINT64(source_desc-> + integer. + value))); + } + break; + + case ACPI_TYPE_BUFFER: + + ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[0x%.2X]\n", + (u32) source_desc->buffer.length)); + ACPI_DUMP_BUFFER(source_desc->buffer.pointer, + (source_desc->buffer.length < + 256) ? source_desc->buffer.length : 256); + break; + + case ACPI_TYPE_STRING: + + ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[0x%.2X] \"%s\"\n", + source_desc->string.length, + source_desc->string.pointer)); + break; + + case ACPI_TYPE_PACKAGE: + + ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, + "[Contains 0x%.2X Elements]\n", + source_desc->package.count)); + + /* Output the entire contents of the package */ + + for (i = 0; i < source_desc->package.count; i++) { + acpi_ex_do_debug_object(source_desc->package. + elements[i], level + 4, i + 1); + } + break; + + case ACPI_TYPE_LOCAL_REFERENCE: + + ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[%s] ", + acpi_ut_get_reference_name(source_desc))); + + /* Decode the reference */ + + switch (source_desc->reference.class) { + case ACPI_REFCLASS_INDEX: + + ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "0x%X\n", + source_desc->reference.value)); + break; + + case ACPI_REFCLASS_TABLE: + + ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, + "Table Index 0x%X\n", + source_desc->reference.value)); + break; + + default: + break; + } + + ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, " ")); + + /* Check for valid node first, then valid object */ + + if (source_desc->reference.node) { + if (ACPI_GET_DESCRIPTOR_TYPE + (source_desc->reference.node) != + ACPI_DESC_TYPE_NAMED) { + ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, + " %p - Not a valid namespace node\n", + source_desc->reference. + node)); + } else { + ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, + "Node %p [%4.4s] ", + source_desc->reference. + node, + (source_desc->reference. + node)->name.ascii)); + + switch ((source_desc->reference.node)->type) { + + /* These types have no attached object */ + + case ACPI_TYPE_DEVICE: + acpi_os_printf("Device\n"); + break; + + case ACPI_TYPE_THERMAL: + acpi_os_printf("Thermal Zone\n"); + break; + + default: + acpi_ex_do_debug_object((source_desc-> + reference. + node)->object, + level + 4, 0); + break; + } + } + } else if (source_desc->reference.object) { + if (ACPI_GET_DESCRIPTOR_TYPE + (source_desc->reference.object) == + ACPI_DESC_TYPE_NAMED) { + acpi_ex_do_debug_object(((struct + acpi_namespace_node *) + source_desc->reference. + object)->object, + level + 4, 0); + } else { + acpi_ex_do_debug_object(source_desc->reference. + object, level + 4, 0); + } + } + break; + + default: + + ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "%p\n", + source_desc)); + break; + } + + ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, "\n")); + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_store + * + * PARAMETERS: *source_desc - Value to be stored + * *dest_desc - Where to store it. Must be an NS node + * or an union acpi_operand_object of type + * Reference; + * walk_state - Current walk state + * + * RETURN: Status + * + * DESCRIPTION: Store the value described by source_desc into the location + * described by dest_desc. Called by various interpreter + * functions to store the result of an operation into + * the destination operand -- not just simply the actual "Store" + * ASL operator. + * + ******************************************************************************/ + +acpi_status +acpi_ex_store(union acpi_operand_object *source_desc, + union acpi_operand_object *dest_desc, + struct acpi_walk_state *walk_state) +{ + acpi_status status = AE_OK; + union acpi_operand_object *ref_desc = dest_desc; + + ACPI_FUNCTION_TRACE_PTR(ex_store, dest_desc); + + /* Validate parameters */ + + if (!source_desc || !dest_desc) { + ACPI_ERROR((AE_INFO, "Null parameter")); + return_ACPI_STATUS(AE_AML_NO_OPERAND); + } + + /* dest_desc can be either a namespace node or an ACPI object */ + + if (ACPI_GET_DESCRIPTOR_TYPE(dest_desc) == ACPI_DESC_TYPE_NAMED) { + /* + * Dest is a namespace node, + * Storing an object into a Named node. + */ + status = acpi_ex_store_object_to_node(source_desc, + (struct + acpi_namespace_node *) + dest_desc, walk_state, + ACPI_IMPLICIT_CONVERSION); + + return_ACPI_STATUS(status); + } + + /* Destination object must be a Reference or a Constant object */ + + switch (ACPI_GET_OBJECT_TYPE(dest_desc)) { + case ACPI_TYPE_LOCAL_REFERENCE: + break; + + case ACPI_TYPE_INTEGER: + + /* Allow stores to Constants -- a Noop as per ACPI spec */ + + if (dest_desc->common.flags & AOPOBJ_AML_CONSTANT) { + return_ACPI_STATUS(AE_OK); + } + + /*lint -fallthrough */ + + default: + + /* Destination is not a Reference object */ + + ACPI_ERROR((AE_INFO, + "Target is not a Reference or Constant object - %s [%p]", + acpi_ut_get_object_type_name(dest_desc), + dest_desc)); + + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + + /* + * Examine the Reference class. These cases are handled: + * + * 1) Store to Name (Change the object associated with a name) + * 2) Store to an indexed area of a Buffer or Package + * 3) Store to a Method Local or Arg + * 4) Store to the debug object + */ + switch (ref_desc->reference.class) { + case ACPI_REFCLASS_REFOF: + + /* Storing an object into a Name "container" */ + + status = acpi_ex_store_object_to_node(source_desc, + ref_desc->reference. + object, walk_state, + ACPI_IMPLICIT_CONVERSION); + break; + + case ACPI_REFCLASS_INDEX: + + /* Storing to an Index (pointer into a packager or buffer) */ + + status = + acpi_ex_store_object_to_index(source_desc, ref_desc, + walk_state); + break; + + case ACPI_REFCLASS_LOCAL: + case ACPI_REFCLASS_ARG: + + /* Store to a method local/arg */ + + status = + acpi_ds_store_object_to_local(ref_desc->reference.class, + ref_desc->reference.value, + source_desc, walk_state); + break; + + case ACPI_REFCLASS_DEBUG: + + /* + * Storing to the Debug object causes the value stored to be + * displayed and otherwise has no effect -- see ACPI Specification + */ + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "**** Write to Debug Object: Object %p %s ****:\n\n", + source_desc, + acpi_ut_get_object_type_name(source_desc))); + + acpi_ex_do_debug_object(source_desc, 0, 0); + break; + + default: + + ACPI_ERROR((AE_INFO, "Unknown Reference Class %2.2X", + ref_desc->reference.class)); + ACPI_DUMP_ENTRY(ref_desc, ACPI_LV_INFO); + + status = AE_AML_INTERNAL; + break; + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_store_object_to_index + * + * PARAMETERS: *source_desc - Value to be stored + * *dest_desc - Named object to receive the value + * walk_state - Current walk state + * + * RETURN: Status + * + * DESCRIPTION: Store the object to indexed Buffer or Package element + * + ******************************************************************************/ + +static acpi_status +acpi_ex_store_object_to_index(union acpi_operand_object *source_desc, + union acpi_operand_object *index_desc, + struct acpi_walk_state *walk_state) +{ + acpi_status status = AE_OK; + union acpi_operand_object *obj_desc; + union acpi_operand_object *new_desc; + u8 value = 0; + u32 i; + + ACPI_FUNCTION_TRACE(ex_store_object_to_index); + + /* + * Destination must be a reference pointer, and + * must point to either a buffer or a package + */ + switch (index_desc->reference.target_type) { + case ACPI_TYPE_PACKAGE: + /* + * Storing to a package element. Copy the object and replace + * any existing object with the new object. No implicit + * conversion is performed. + * + * The object at *(index_desc->Reference.Where) is the + * element within the package that is to be modified. + * The parent package object is at index_desc->Reference.Object + */ + obj_desc = *(index_desc->reference.where); + + if (ACPI_GET_OBJECT_TYPE(source_desc) == + ACPI_TYPE_LOCAL_REFERENCE + && source_desc->reference.class == ACPI_REFCLASS_TABLE) { + + /* This is a DDBHandle, just add a reference to it */ + + acpi_ut_add_reference(source_desc); + new_desc = source_desc; + } else { + /* Normal object, copy it */ + + status = + acpi_ut_copy_iobject_to_iobject(source_desc, + &new_desc, + walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + + if (obj_desc) { + + /* Decrement reference count by the ref count of the parent package */ + + for (i = 0; i < ((union acpi_operand_object *) + index_desc->reference.object)->common. + reference_count; i++) { + acpi_ut_remove_reference(obj_desc); + } + } + + *(index_desc->reference.where) = new_desc; + + /* Increment ref count by the ref count of the parent package-1 */ + + for (i = 1; i < ((union acpi_operand_object *) + index_desc->reference.object)->common. + reference_count; i++) { + acpi_ut_add_reference(new_desc); + } + + break; + + case ACPI_TYPE_BUFFER_FIELD: + + /* + * Store into a Buffer or String (not actually a real buffer_field) + * at a location defined by an Index. + * + * The first 8-bit element of the source object is written to the + * 8-bit Buffer location defined by the Index destination object, + * according to the ACPI 2.0 specification. + */ + + /* + * Make sure the target is a Buffer or String. An error should + * not happen here, since the reference_object was constructed + * by the INDEX_OP code. + */ + obj_desc = index_desc->reference.object; + if ((ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_BUFFER) && + (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_STRING)) { + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + + /* + * The assignment of the individual elements will be slightly + * different for each source type. + */ + switch (ACPI_GET_OBJECT_TYPE(source_desc)) { + case ACPI_TYPE_INTEGER: + + /* Use the least-significant byte of the integer */ + + value = (u8) (source_desc->integer.value); + break; + + case ACPI_TYPE_BUFFER: + case ACPI_TYPE_STRING: + + /* Note: Takes advantage of common string/buffer fields */ + + value = source_desc->buffer.pointer[0]; + break; + + default: + + /* All other types are invalid */ + + ACPI_ERROR((AE_INFO, + "Source must be Integer/Buffer/String type, not %s", + acpi_ut_get_object_type_name(source_desc))); + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + + /* Store the source value into the target buffer byte */ + + obj_desc->buffer.pointer[index_desc->reference.value] = value; + break; + + default: + ACPI_ERROR((AE_INFO, "Target is not a Package or BufferField")); + status = AE_AML_OPERAND_TYPE; + break; + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_store_object_to_node + * + * PARAMETERS: source_desc - Value to be stored + * Node - Named object to receive the value + * walk_state - Current walk state + * implicit_conversion - Perform implicit conversion (yes/no) + * + * RETURN: Status + * + * DESCRIPTION: Store the object to the named object. + * + * The Assignment of an object to a named object is handled here + * The value passed in will replace the current value (if any) + * with the input value. + * + * When storing into an object the data is converted to the + * target object type then stored in the object. This means + * that the target object type (for an initialized target) will + * not be changed by a store operation. + * + * Assumes parameters are already validated. + * + ******************************************************************************/ + +acpi_status +acpi_ex_store_object_to_node(union acpi_operand_object *source_desc, + struct acpi_namespace_node *node, + struct acpi_walk_state *walk_state, + u8 implicit_conversion) +{ + acpi_status status = AE_OK; + union acpi_operand_object *target_desc; + union acpi_operand_object *new_desc; + acpi_object_type target_type; + + ACPI_FUNCTION_TRACE_PTR(ex_store_object_to_node, source_desc); + + /* Get current type of the node, and object attached to Node */ + + target_type = acpi_ns_get_type(node); + target_desc = acpi_ns_get_attached_object(node); + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Storing %p(%s) into node %p(%s)\n", + source_desc, + acpi_ut_get_object_type_name(source_desc), node, + acpi_ut_get_type_name(target_type))); + + /* + * Resolve the source object to an actual value + * (If it is a reference object) + */ + status = acpi_ex_resolve_object(&source_desc, target_type, walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* If no implicit conversion, drop into the default case below */ + + if ((!implicit_conversion) || + ((walk_state->opcode == AML_COPY_OP) && + (target_type != ACPI_TYPE_LOCAL_REGION_FIELD) && + (target_type != ACPI_TYPE_LOCAL_BANK_FIELD) && + (target_type != ACPI_TYPE_LOCAL_INDEX_FIELD))) { + /* + * Force execution of default (no implicit conversion). Note: + * copy_object does not perform an implicit conversion, as per the ACPI + * spec -- except in case of region/bank/index fields -- because these + * objects must retain their original type permanently. + */ + target_type = ACPI_TYPE_ANY; + } + + /* Do the actual store operation */ + + switch (target_type) { + case ACPI_TYPE_BUFFER_FIELD: + case ACPI_TYPE_LOCAL_REGION_FIELD: + case ACPI_TYPE_LOCAL_BANK_FIELD: + case ACPI_TYPE_LOCAL_INDEX_FIELD: + + /* For fields, copy the source data to the target field. */ + + status = acpi_ex_write_data_to_field(source_desc, target_desc, + &walk_state->result_obj); + break; + + case ACPI_TYPE_INTEGER: + case ACPI_TYPE_STRING: + case ACPI_TYPE_BUFFER: + + /* + * These target types are all of type Integer/String/Buffer, and + * therefore support implicit conversion before the store. + * + * Copy and/or convert the source object to a new target object + */ + status = + acpi_ex_store_object_to_object(source_desc, target_desc, + &new_desc, walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + if (new_desc != target_desc) { + /* + * Store the new new_desc as the new value of the Name, and set + * the Name's type to that of the value being stored in it. + * source_desc reference count is incremented by attach_object. + * + * Note: This may change the type of the node if an explicit store + * has been performed such that the node/object type has been + * changed. + */ + status = + acpi_ns_attach_object(node, new_desc, + new_desc->common.type); + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Store %s into %s via Convert/Attach\n", + acpi_ut_get_object_type_name + (source_desc), + acpi_ut_get_object_type_name + (new_desc))); + } + break; + + default: + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Storing %s (%p) directly into node (%p) with no implicit conversion\n", + acpi_ut_get_object_type_name(source_desc), + source_desc, node)); + + /* No conversions for all other types. Just attach the source object */ + + status = acpi_ns_attach_object(node, source_desc, + ACPI_GET_OBJECT_TYPE + (source_desc)); + break; + } + + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/exstoren.c b/drivers/acpi/acpica/exstoren.c new file mode 100644 index 000000000000..ad2047afa463 --- /dev/null +++ b/drivers/acpi/acpica/exstoren.c @@ -0,0 +1,304 @@ + +/****************************************************************************** + * + * Module Name: exstoren - AML Interpreter object store support, + * Store to Node (namespace object) + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include + +#define _COMPONENT ACPI_EXECUTER +ACPI_MODULE_NAME("exstoren") + +/******************************************************************************* + * + * FUNCTION: acpi_ex_resolve_object + * + * PARAMETERS: source_desc_ptr - Pointer to the source object + * target_type - Current type of the target + * walk_state - Current walk state + * + * RETURN: Status, resolved object in source_desc_ptr. + * + * DESCRIPTION: Resolve an object. If the object is a reference, dereference + * it and return the actual object in the source_desc_ptr. + * + ******************************************************************************/ +acpi_status +acpi_ex_resolve_object(union acpi_operand_object **source_desc_ptr, + acpi_object_type target_type, + struct acpi_walk_state *walk_state) +{ + union acpi_operand_object *source_desc = *source_desc_ptr; + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE(ex_resolve_object); + + /* Ensure we have a Target that can be stored to */ + + switch (target_type) { + case ACPI_TYPE_BUFFER_FIELD: + case ACPI_TYPE_LOCAL_REGION_FIELD: + case ACPI_TYPE_LOCAL_BANK_FIELD: + case ACPI_TYPE_LOCAL_INDEX_FIELD: + /* + * These cases all require only Integers or values that + * can be converted to Integers (Strings or Buffers) + */ + + case ACPI_TYPE_INTEGER: + case ACPI_TYPE_STRING: + case ACPI_TYPE_BUFFER: + + /* + * Stores into a Field/Region or into a Integer/Buffer/String + * are all essentially the same. This case handles the + * "interchangeable" types Integer, String, and Buffer. + */ + if (ACPI_GET_OBJECT_TYPE(source_desc) == + ACPI_TYPE_LOCAL_REFERENCE) { + + /* Resolve a reference object first */ + + status = + acpi_ex_resolve_to_value(source_desc_ptr, + walk_state); + if (ACPI_FAILURE(status)) { + break; + } + } + + /* For copy_object, no further validation necessary */ + + if (walk_state->opcode == AML_COPY_OP) { + break; + } + + /* Must have a Integer, Buffer, or String */ + + if ((ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_INTEGER) && + (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_BUFFER) && + (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_STRING) && + !((ACPI_GET_OBJECT_TYPE(source_desc) == + ACPI_TYPE_LOCAL_REFERENCE) + && (source_desc->reference.class == + ACPI_REFCLASS_TABLE))) { + + /* Conversion successful but still not a valid type */ + + ACPI_ERROR((AE_INFO, + "Cannot assign type %s to %s (must be type Int/Str/Buf)", + acpi_ut_get_object_type_name(source_desc), + acpi_ut_get_type_name(target_type))); + status = AE_AML_OPERAND_TYPE; + } + break; + + case ACPI_TYPE_LOCAL_ALIAS: + case ACPI_TYPE_LOCAL_METHOD_ALIAS: + + /* + * All aliases should have been resolved earlier, during the + * operand resolution phase. + */ + ACPI_ERROR((AE_INFO, "Store into an unresolved Alias object")); + status = AE_AML_INTERNAL; + break; + + case ACPI_TYPE_PACKAGE: + default: + + /* + * All other types than Alias and the various Fields come here, + * including the untyped case - ACPI_TYPE_ANY. + */ + break; + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_store_object_to_object + * + * PARAMETERS: source_desc - Object to store + * dest_desc - Object to receive a copy of the source + * new_desc - New object if dest_desc is obsoleted + * walk_state - Current walk state + * + * RETURN: Status + * + * DESCRIPTION: "Store" an object to another object. This may include + * converting the source type to the target type (implicit + * conversion), and a copy of the value of the source to + * the target. + * + * The Assignment of an object to another (not named) object + * is handled here. + * The Source passed in will replace the current value (if any) + * with the input value. + * + * When storing into an object the data is converted to the + * target object type then stored in the object. This means + * that the target object type (for an initialized target) will + * not be changed by a store operation. + * + * This module allows destination types of Number, String, + * Buffer, and Package. + * + * Assumes parameters are already validated. NOTE: source_desc + * resolution (from a reference object) must be performed by + * the caller if necessary. + * + ******************************************************************************/ + +acpi_status +acpi_ex_store_object_to_object(union acpi_operand_object *source_desc, + union acpi_operand_object *dest_desc, + union acpi_operand_object **new_desc, + struct acpi_walk_state *walk_state) +{ + union acpi_operand_object *actual_src_desc; + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE_PTR(ex_store_object_to_object, source_desc); + + actual_src_desc = source_desc; + if (!dest_desc) { + /* + * There is no destination object (An uninitialized node or + * package element), so we can simply copy the source object + * creating a new destination object + */ + status = + acpi_ut_copy_iobject_to_iobject(actual_src_desc, new_desc, + walk_state); + return_ACPI_STATUS(status); + } + + if (ACPI_GET_OBJECT_TYPE(source_desc) != + ACPI_GET_OBJECT_TYPE(dest_desc)) { + /* + * The source type does not match the type of the destination. + * Perform the "implicit conversion" of the source to the current type + * of the target as per the ACPI specification. + * + * If no conversion performed, actual_src_desc = source_desc. + * Otherwise, actual_src_desc is a temporary object to hold the + * converted object. + */ + status = + acpi_ex_convert_to_target_type(ACPI_GET_OBJECT_TYPE + (dest_desc), source_desc, + &actual_src_desc, + walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + if (source_desc == actual_src_desc) { + /* + * No conversion was performed. Return the source_desc as the + * new object. + */ + *new_desc = source_desc; + return_ACPI_STATUS(AE_OK); + } + } + + /* + * We now have two objects of identical types, and we can perform a + * copy of the *value* of the source object. + */ + switch (ACPI_GET_OBJECT_TYPE(dest_desc)) { + case ACPI_TYPE_INTEGER: + + dest_desc->integer.value = actual_src_desc->integer.value; + + /* Truncate value if we are executing from a 32-bit ACPI table */ + + acpi_ex_truncate_for32bit_table(dest_desc); + break; + + case ACPI_TYPE_STRING: + + status = + acpi_ex_store_string_to_string(actual_src_desc, dest_desc); + break; + + case ACPI_TYPE_BUFFER: + + status = + acpi_ex_store_buffer_to_buffer(actual_src_desc, dest_desc); + break; + + case ACPI_TYPE_PACKAGE: + + status = + acpi_ut_copy_iobject_to_iobject(actual_src_desc, &dest_desc, + walk_state); + break; + + default: + /* + * All other types come here. + */ + ACPI_WARNING((AE_INFO, "Store into type %s not implemented", + acpi_ut_get_object_type_name(dest_desc))); + + status = AE_NOT_IMPLEMENTED; + break; + } + + if (actual_src_desc != source_desc) { + + /* Delete the intermediate (temporary) source object */ + + acpi_ut_remove_reference(actual_src_desc); + } + + *new_desc = dest_desc; + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/exstorob.c b/drivers/acpi/acpica/exstorob.c new file mode 100644 index 000000000000..a48d580d71c2 --- /dev/null +++ b/drivers/acpi/acpica/exstorob.c @@ -0,0 +1,209 @@ + +/****************************************************************************** + * + * Module Name: exstorob - AML Interpreter object store support, store to object + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_EXECUTER +ACPI_MODULE_NAME("exstorob") + +/******************************************************************************* + * + * FUNCTION: acpi_ex_store_buffer_to_buffer + * + * PARAMETERS: source_desc - Source object to copy + * target_desc - Destination object of the copy + * + * RETURN: Status + * + * DESCRIPTION: Copy a buffer object to another buffer object. + * + ******************************************************************************/ +acpi_status +acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc, + union acpi_operand_object *target_desc) +{ + u32 length; + u8 *buffer; + + ACPI_FUNCTION_TRACE_PTR(ex_store_buffer_to_buffer, source_desc); + + /* We know that source_desc is a buffer by now */ + + buffer = ACPI_CAST_PTR(u8, source_desc->buffer.pointer); + length = source_desc->buffer.length; + + /* + * If target is a buffer of length zero or is a static buffer, + * allocate a new buffer of the proper length + */ + if ((target_desc->buffer.length == 0) || + (target_desc->common.flags & AOPOBJ_STATIC_POINTER)) { + target_desc->buffer.pointer = ACPI_ALLOCATE(length); + if (!target_desc->buffer.pointer) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + target_desc->buffer.length = length; + } + + /* Copy source buffer to target buffer */ + + if (length <= target_desc->buffer.length) { + + /* Clear existing buffer and copy in the new one */ + + ACPI_MEMSET(target_desc->buffer.pointer, 0, + target_desc->buffer.length); + ACPI_MEMCPY(target_desc->buffer.pointer, buffer, length); + +#ifdef ACPI_OBSOLETE_BEHAVIOR + /* + * NOTE: ACPI versions up to 3.0 specified that the buffer must be + * truncated if the string is smaller than the buffer. However, "other" + * implementations of ACPI never did this and thus became the defacto + * standard. ACPI 3.0_a changes this behavior such that the buffer + * is no longer truncated. + */ + + /* + * OBSOLETE BEHAVIOR: + * If the original source was a string, we must truncate the buffer, + * according to the ACPI spec. Integer-to-Buffer and Buffer-to-Buffer + * copy must not truncate the original buffer. + */ + if (original_src_type == ACPI_TYPE_STRING) { + + /* Set the new length of the target */ + + target_desc->buffer.length = length; + } +#endif + } else { + /* Truncate the source, copy only what will fit */ + + ACPI_MEMCPY(target_desc->buffer.pointer, buffer, + target_desc->buffer.length); + + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Truncating source buffer from %X to %X\n", + length, target_desc->buffer.length)); + } + + /* Copy flags */ + + target_desc->buffer.flags = source_desc->buffer.flags; + target_desc->common.flags &= ~AOPOBJ_STATIC_POINTER; + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_store_string_to_string + * + * PARAMETERS: source_desc - Source object to copy + * target_desc - Destination object of the copy + * + * RETURN: Status + * + * DESCRIPTION: Copy a String object to another String object + * + ******************************************************************************/ + +acpi_status +acpi_ex_store_string_to_string(union acpi_operand_object *source_desc, + union acpi_operand_object *target_desc) +{ + u32 length; + u8 *buffer; + + ACPI_FUNCTION_TRACE_PTR(ex_store_string_to_string, source_desc); + + /* We know that source_desc is a string by now */ + + buffer = ACPI_CAST_PTR(u8, source_desc->string.pointer); + length = source_desc->string.length; + + /* + * Replace existing string value if it will fit and the string + * pointer is not a static pointer (part of an ACPI table) + */ + if ((length < target_desc->string.length) && + (!(target_desc->common.flags & AOPOBJ_STATIC_POINTER))) { + /* + * String will fit in existing non-static buffer. + * Clear old string and copy in the new one + */ + ACPI_MEMSET(target_desc->string.pointer, 0, + (acpi_size) target_desc->string.length + 1); + ACPI_MEMCPY(target_desc->string.pointer, buffer, length); + } else { + /* + * Free the current buffer, then allocate a new buffer + * large enough to hold the value + */ + if (target_desc->string.pointer && + (!(target_desc->common.flags & AOPOBJ_STATIC_POINTER))) { + + /* Only free if not a pointer into the DSDT */ + + ACPI_FREE(target_desc->string.pointer); + } + + target_desc->string.pointer = ACPI_ALLOCATE_ZEROED((acpi_size) + length + 1); + if (!target_desc->string.pointer) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + target_desc->common.flags &= ~AOPOBJ_STATIC_POINTER; + ACPI_MEMCPY(target_desc->string.pointer, buffer, length); + } + + /* Set the new target length */ + + target_desc->string.length = length; + return_ACPI_STATUS(AE_OK); +} diff --git a/drivers/acpi/acpica/exsystem.c b/drivers/acpi/acpica/exsystem.c new file mode 100644 index 000000000000..a25b2c576eb1 --- /dev/null +++ b/drivers/acpi/acpica/exsystem.c @@ -0,0 +1,303 @@ + +/****************************************************************************** + * + * Module Name: exsystem - Interface to OS services + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_EXECUTER +ACPI_MODULE_NAME("exsystem") + +/******************************************************************************* + * + * FUNCTION: acpi_ex_system_wait_semaphore + * + * PARAMETERS: Semaphore - Semaphore to wait on + * Timeout - Max time to wait + * + * RETURN: Status + * + * DESCRIPTION: Implements a semaphore wait with a check to see if the + * semaphore is available immediately. If it is not, the + * interpreter is released before waiting. + * + ******************************************************************************/ +acpi_status acpi_ex_system_wait_semaphore(acpi_semaphore semaphore, u16 timeout) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(ex_system_wait_semaphore); + + status = acpi_os_wait_semaphore(semaphore, 1, ACPI_DO_NOT_WAIT); + if (ACPI_SUCCESS(status)) { + return_ACPI_STATUS(status); + } + + if (status == AE_TIME) { + + /* We must wait, so unlock the interpreter */ + + acpi_ex_relinquish_interpreter(); + + status = acpi_os_wait_semaphore(semaphore, 1, timeout); + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "*** Thread awake after blocking, %s\n", + acpi_format_exception(status))); + + /* Reacquire the interpreter */ + + acpi_ex_reacquire_interpreter(); + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_system_wait_mutex + * + * PARAMETERS: Mutex - Mutex to wait on + * Timeout - Max time to wait + * + * RETURN: Status + * + * DESCRIPTION: Implements a mutex wait with a check to see if the + * mutex is available immediately. If it is not, the + * interpreter is released before waiting. + * + ******************************************************************************/ + +acpi_status acpi_ex_system_wait_mutex(acpi_mutex mutex, u16 timeout) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(ex_system_wait_mutex); + + status = acpi_os_acquire_mutex(mutex, ACPI_DO_NOT_WAIT); + if (ACPI_SUCCESS(status)) { + return_ACPI_STATUS(status); + } + + if (status == AE_TIME) { + + /* We must wait, so unlock the interpreter */ + + acpi_ex_relinquish_interpreter(); + + status = acpi_os_acquire_mutex(mutex, timeout); + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "*** Thread awake after blocking, %s\n", + acpi_format_exception(status))); + + /* Reacquire the interpreter */ + + acpi_ex_reacquire_interpreter(); + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_system_do_stall + * + * PARAMETERS: how_long - The amount of time to stall, + * in microseconds + * + * RETURN: Status + * + * DESCRIPTION: Suspend running thread for specified amount of time. + * Note: ACPI specification requires that Stall() does not + * relinquish the processor, and delays longer than 100 usec + * should use Sleep() instead. We allow stalls up to 255 usec + * for compatibility with other interpreters and existing BIOSs. + * + ******************************************************************************/ + +acpi_status acpi_ex_system_do_stall(u32 how_long) +{ + acpi_status status = AE_OK; + + ACPI_FUNCTION_ENTRY(); + + if (how_long > 255) { /* 255 microseconds */ + /* + * Longer than 255 usec, this is an error + * + * (ACPI specifies 100 usec as max, but this gives some slack in + * order to support existing BIOSs) + */ + ACPI_ERROR((AE_INFO, "Time parameter is too large (%d)", + how_long)); + status = AE_AML_OPERAND_VALUE; + } else { + acpi_os_stall(how_long); + } + + return (status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_system_do_suspend + * + * PARAMETERS: how_long - The amount of time to suspend, + * in milliseconds + * + * RETURN: None + * + * DESCRIPTION: Suspend running thread for specified amount of time. + * + ******************************************************************************/ + +acpi_status acpi_ex_system_do_suspend(acpi_integer how_long) +{ + ACPI_FUNCTION_ENTRY(); + + /* Since this thread will sleep, we must release the interpreter */ + + acpi_ex_relinquish_interpreter(); + + acpi_os_sleep(how_long); + + /* And now we must get the interpreter again */ + + acpi_ex_reacquire_interpreter(); + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_system_signal_event + * + * PARAMETERS: obj_desc - The object descriptor for this op + * + * RETURN: Status + * + * DESCRIPTION: Provides an access point to perform synchronization operations + * within the AML. + * + ******************************************************************************/ + +acpi_status acpi_ex_system_signal_event(union acpi_operand_object * obj_desc) +{ + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE(ex_system_signal_event); + + if (obj_desc) { + status = + acpi_os_signal_semaphore(obj_desc->event.os_semaphore, 1); + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_system_wait_event + * + * PARAMETERS: time_desc - The 'time to delay' object descriptor + * obj_desc - The object descriptor for this op + * + * RETURN: Status + * + * DESCRIPTION: Provides an access point to perform synchronization operations + * within the AML. This operation is a request to wait for an + * event. + * + ******************************************************************************/ + +acpi_status +acpi_ex_system_wait_event(union acpi_operand_object *time_desc, + union acpi_operand_object *obj_desc) +{ + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE(ex_system_wait_event); + + if (obj_desc) { + status = + acpi_ex_system_wait_semaphore(obj_desc->event.os_semaphore, + (u16) time_desc->integer. + value); + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_system_reset_event + * + * PARAMETERS: obj_desc - The object descriptor for this op + * + * RETURN: Status + * + * DESCRIPTION: Reset an event to a known state. + * + ******************************************************************************/ + +acpi_status acpi_ex_system_reset_event(union acpi_operand_object *obj_desc) +{ + acpi_status status = AE_OK; + acpi_semaphore temp_semaphore; + + ACPI_FUNCTION_ENTRY(); + + /* + * We are going to simply delete the existing semaphore and + * create a new one! + */ + status = + acpi_os_create_semaphore(ACPI_NO_UNIT_LIMIT, 0, &temp_semaphore); + if (ACPI_SUCCESS(status)) { + (void)acpi_os_delete_semaphore(obj_desc->event.os_semaphore); + obj_desc->event.os_semaphore = temp_semaphore; + } + + return (status); +} diff --git a/drivers/acpi/acpica/exutils.c b/drivers/acpi/acpica/exutils.c new file mode 100644 index 000000000000..0ecdb70c4980 --- /dev/null +++ b/drivers/acpi/acpica/exutils.c @@ -0,0 +1,421 @@ + +/****************************************************************************** + * + * Module Name: exutils - interpreter/scanner utilities + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +/* + * DEFINE_AML_GLOBALS is tested in amlcode.h + * to determine whether certain global names should be "defined" or only + * "declared" in the current compilation. This enhances maintainability + * by enabling a single header file to embody all knowledge of the names + * in question. + * + * Exactly one module of any executable should #define DEFINE_GLOBALS + * before #including the header files which use this convention. The + * names in question will be defined and initialized in that module, + * and declared as extern in all other modules which #include those + * header files. + */ + +#define DEFINE_AML_GLOBALS + +#include +#include +#include +#include + +#define _COMPONENT ACPI_EXECUTER +ACPI_MODULE_NAME("exutils") + +/* Local prototypes */ +static u32 acpi_ex_digits_needed(acpi_integer value, u32 base); + +#ifndef ACPI_NO_METHOD_EXECUTION +/******************************************************************************* + * + * FUNCTION: acpi_ex_enter_interpreter + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Enter the interpreter execution region. Failure to enter + * the interpreter region is a fatal system error. Used in + * conjunction with exit_interpreter. + * + ******************************************************************************/ + +void acpi_ex_enter_interpreter(void) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(ex_enter_interpreter); + + status = acpi_ut_acquire_mutex(ACPI_MTX_INTERPRETER); + if (ACPI_FAILURE(status)) { + ACPI_ERROR((AE_INFO, + "Could not acquire AML Interpreter mutex")); + } + + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_reacquire_interpreter + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Reacquire the interpreter execution region from within the + * interpreter code. Failure to enter the interpreter region is a + * fatal system error. Used in conjuction with + * relinquish_interpreter + * + ******************************************************************************/ + +void acpi_ex_reacquire_interpreter(void) +{ + ACPI_FUNCTION_TRACE(ex_reacquire_interpreter); + + /* + * If the global serialized flag is set, do not release the interpreter, + * since it was not actually released by acpi_ex_relinquish_interpreter. + * This forces the interpreter to be single threaded. + */ + if (!acpi_gbl_all_methods_serialized) { + acpi_ex_enter_interpreter(); + } + + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_exit_interpreter + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Exit the interpreter execution region. This is the top level + * routine used to exit the interpreter when all processing has + * been completed. + * + ******************************************************************************/ + +void acpi_ex_exit_interpreter(void) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(ex_exit_interpreter); + + status = acpi_ut_release_mutex(ACPI_MTX_INTERPRETER); + if (ACPI_FAILURE(status)) { + ACPI_ERROR((AE_INFO, + "Could not release AML Interpreter mutex")); + } + + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_relinquish_interpreter + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Exit the interpreter execution region, from within the + * interpreter - before attempting an operation that will possibly + * block the running thread. + * + * Cases where the interpreter is unlocked internally + * 1) Method to be blocked on a Sleep() AML opcode + * 2) Method to be blocked on an Acquire() AML opcode + * 3) Method to be blocked on a Wait() AML opcode + * 4) Method to be blocked to acquire the global lock + * 5) Method to be blocked waiting to execute a serialized control method + * that is currently executing + * 6) About to invoke a user-installed opregion handler + * + ******************************************************************************/ + +void acpi_ex_relinquish_interpreter(void) +{ + ACPI_FUNCTION_TRACE(ex_relinquish_interpreter); + + /* + * If the global serialized flag is set, do not release the interpreter. + * This forces the interpreter to be single threaded. + */ + if (!acpi_gbl_all_methods_serialized) { + acpi_ex_exit_interpreter(); + } + + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_truncate_for32bit_table + * + * PARAMETERS: obj_desc - Object to be truncated + * + * RETURN: none + * + * DESCRIPTION: Truncate an ACPI Integer to 32 bits if the execution mode is + * 32-bit, as determined by the revision of the DSDT. + * + ******************************************************************************/ + +void acpi_ex_truncate_for32bit_table(union acpi_operand_object *obj_desc) +{ + + ACPI_FUNCTION_ENTRY(); + + /* + * Object must be a valid number and we must be executing + * a control method. NS node could be there for AML_INT_NAMEPATH_OP. + */ + if ((!obj_desc) || + (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != ACPI_DESC_TYPE_OPERAND) || + (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_INTEGER)) { + return; + } + + if (acpi_gbl_integer_byte_width == 4) { + /* + * We are running a method that exists in a 32-bit ACPI table. + * Truncate the value to 32 bits by zeroing out the upper 32-bit field + */ + obj_desc->integer.value &= (acpi_integer) ACPI_UINT32_MAX; + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_acquire_global_lock + * + * PARAMETERS: field_flags - Flags with Lock rule: + * always_lock or never_lock + * + * RETURN: None + * + * DESCRIPTION: Obtain the ACPI hardware Global Lock, only if the field + * flags specifiy that it is to be obtained before field access. + * + ******************************************************************************/ + +void acpi_ex_acquire_global_lock(u32 field_flags) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(ex_acquire_global_lock); + + /* Only use the lock if the always_lock bit is set */ + + if (!(field_flags & AML_FIELD_LOCK_RULE_MASK)) { + return_VOID; + } + + /* Attempt to get the global lock, wait forever */ + + status = acpi_ex_acquire_mutex_object(ACPI_WAIT_FOREVER, + acpi_gbl_global_lock_mutex, + acpi_os_get_thread_id()); + + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Could not acquire Global Lock")); + } + + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_release_global_lock + * + * PARAMETERS: field_flags - Flags with Lock rule: + * always_lock or never_lock + * + * RETURN: None + * + * DESCRIPTION: Release the ACPI hardware Global Lock + * + ******************************************************************************/ + +void acpi_ex_release_global_lock(u32 field_flags) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(ex_release_global_lock); + + /* Only use the lock if the always_lock bit is set */ + + if (!(field_flags & AML_FIELD_LOCK_RULE_MASK)) { + return_VOID; + } + + /* Release the global lock */ + + status = acpi_ex_release_mutex_object(acpi_gbl_global_lock_mutex); + if (ACPI_FAILURE(status)) { + + /* Report the error, but there isn't much else we can do */ + + ACPI_EXCEPTION((AE_INFO, status, + "Could not release Global Lock")); + } + + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_digits_needed + * + * PARAMETERS: Value - Value to be represented + * Base - Base of representation + * + * RETURN: The number of digits. + * + * DESCRIPTION: Calculate the number of digits needed to represent the Value + * in the given Base (Radix) + * + ******************************************************************************/ + +static u32 acpi_ex_digits_needed(acpi_integer value, u32 base) +{ + u32 num_digits; + acpi_integer current_value; + + ACPI_FUNCTION_TRACE(ex_digits_needed); + + /* acpi_integer is unsigned, so we don't worry about a '-' prefix */ + + if (value == 0) { + return_UINT32(1); + } + + current_value = value; + num_digits = 0; + + /* Count the digits in the requested base */ + + while (current_value) { + (void)acpi_ut_short_divide(current_value, base, ¤t_value, + NULL); + num_digits++; + } + + return_UINT32(num_digits); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_eisa_id_to_string + * + * PARAMETERS: numeric_id - EISA ID to be converted + * out_string - Where to put the converted string (8 bytes) + * + * RETURN: None + * + * DESCRIPTION: Convert a numeric EISA ID to string representation + * + ******************************************************************************/ + +void acpi_ex_eisa_id_to_string(u32 numeric_id, char *out_string) +{ + u32 eisa_id; + + ACPI_FUNCTION_ENTRY(); + + /* Swap ID to big-endian to get contiguous bits */ + + eisa_id = acpi_ut_dword_byte_swap(numeric_id); + + out_string[0] = (char)('@' + (((unsigned long)eisa_id >> 26) & 0x1f)); + out_string[1] = (char)('@' + ((eisa_id >> 21) & 0x1f)); + out_string[2] = (char)('@' + ((eisa_id >> 16) & 0x1f)); + out_string[3] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 12); + out_string[4] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 8); + out_string[5] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 4); + out_string[6] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 0); + out_string[7] = 0; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ex_unsigned_integer_to_string + * + * PARAMETERS: Value - Value to be converted + * out_string - Where to put the converted string (8 bytes) + * + * RETURN: None, string + * + * DESCRIPTION: Convert a number to string representation. Assumes string + * buffer is large enough to hold the string. + * + ******************************************************************************/ + +void acpi_ex_unsigned_integer_to_string(acpi_integer value, char *out_string) +{ + u32 count; + u32 digits_needed; + u32 remainder; + + ACPI_FUNCTION_ENTRY(); + + digits_needed = acpi_ex_digits_needed(value, 10); + out_string[digits_needed] = 0; + + for (count = digits_needed; count > 0; count--) { + (void)acpi_ut_short_divide(value, 10, &value, &remainder); + out_string[count - 1] = (char)('0' + remainder); + } +} + +#endif diff --git a/drivers/acpi/acpica/hwacpi.c b/drivers/acpi/acpica/hwacpi.c new file mode 100644 index 000000000000..c76e3cd7e749 --- /dev/null +++ b/drivers/acpi/acpica/hwacpi.c @@ -0,0 +1,185 @@ + +/****************************************************************************** + * + * Module Name: hwacpi - ACPI Hardware Initialization/Mode Interface + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include + +#define _COMPONENT ACPI_HARDWARE +ACPI_MODULE_NAME("hwacpi") + +/****************************************************************************** + * + * FUNCTION: acpi_hw_set_mode + * + * PARAMETERS: Mode - SYS_MODE_ACPI or SYS_MODE_LEGACY + * + * RETURN: Status + * + * DESCRIPTION: Transitions the system into the requested mode. + * + ******************************************************************************/ +acpi_status acpi_hw_set_mode(u32 mode) +{ + + acpi_status status; + u32 retry; + + ACPI_FUNCTION_TRACE(hw_set_mode); + + /* + * ACPI 2.0 clarified that if SMI_CMD in FADT is zero, + * system does not support mode transition. + */ + if (!acpi_gbl_FADT.smi_command) { + ACPI_ERROR((AE_INFO, + "No SMI_CMD in FADT, mode transition failed")); + return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE); + } + + /* + * ACPI 2.0 clarified the meaning of ACPI_ENABLE and ACPI_DISABLE + * in FADT: If it is zero, enabling or disabling is not supported. + * As old systems may have used zero for mode transition, + * we make sure both the numbers are zero to determine these + * transitions are not supported. + */ + if (!acpi_gbl_FADT.acpi_enable && !acpi_gbl_FADT.acpi_disable) { + ACPI_ERROR((AE_INFO, + "No ACPI mode transition supported in this system (enable/disable both zero)")); + return_ACPI_STATUS(AE_OK); + } + + switch (mode) { + case ACPI_SYS_MODE_ACPI: + + /* BIOS should have disabled ALL fixed and GP events */ + + status = acpi_os_write_port(acpi_gbl_FADT.smi_command, + (u32) acpi_gbl_FADT.acpi_enable, 8); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Attempting to enable ACPI mode\n")); + break; + + case ACPI_SYS_MODE_LEGACY: + + /* + * BIOS should clear all fixed status bits and restore fixed event + * enable bits to default + */ + status = acpi_os_write_port(acpi_gbl_FADT.smi_command, + (u32) acpi_gbl_FADT.acpi_disable, + 8); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Attempting to enable Legacy (non-ACPI) mode\n")); + break; + + default: + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Could not write ACPI mode change")); + return_ACPI_STATUS(status); + } + + /* + * Some hardware takes a LONG time to switch modes. Give them 3 sec to + * do so, but allow faster systems to proceed more quickly. + */ + retry = 3000; + while (retry) { + if (acpi_hw_get_mode() == mode) { + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Mode %X successfully enabled\n", + mode)); + return_ACPI_STATUS(AE_OK); + } + acpi_os_stall(1000); + retry--; + } + + ACPI_ERROR((AE_INFO, "Hardware did not change modes")); + return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE); +} + +/******************************************************************************* + * + * FUNCTION: acpi_hw_get_mode + * + * PARAMETERS: none + * + * RETURN: SYS_MODE_ACPI or SYS_MODE_LEGACY + * + * DESCRIPTION: Return current operating state of system. Determined by + * querying the SCI_EN bit. + * + ******************************************************************************/ + +u32 acpi_hw_get_mode(void) +{ + acpi_status status; + u32 value; + + ACPI_FUNCTION_TRACE(hw_get_mode); + + /* + * ACPI 2.0 clarified that if SMI_CMD in FADT is zero, + * system does not support mode transition. + */ + if (!acpi_gbl_FADT.smi_command) { + return_UINT32(ACPI_SYS_MODE_ACPI); + } + + status = acpi_get_register(ACPI_BITREG_SCI_ENABLE, &value); + if (ACPI_FAILURE(status)) { + return_UINT32(ACPI_SYS_MODE_LEGACY); + } + + if (value) { + return_UINT32(ACPI_SYS_MODE_ACPI); + } else { + return_UINT32(ACPI_SYS_MODE_LEGACY); + } +} diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c new file mode 100644 index 000000000000..2b4a85a839d1 --- /dev/null +++ b/drivers/acpi/acpica/hwgpe.c @@ -0,0 +1,469 @@ + +/****************************************************************************** + * + * Module Name: hwgpe - Low level GPE enable/disable/clear functions + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_HARDWARE +ACPI_MODULE_NAME("hwgpe") + +/* Local prototypes */ +static acpi_status +acpi_hw_enable_wakeup_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, + struct acpi_gpe_block_info *gpe_block, + void *context); + +/****************************************************************************** + * + * FUNCTION: acpi_hw_low_disable_gpe + * + * PARAMETERS: gpe_event_info - Info block for the GPE to be disabled + * + * RETURN: Status + * + * DESCRIPTION: Disable a single GPE in the enable register. + * + ******************************************************************************/ + +acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info) +{ + struct acpi_gpe_register_info *gpe_register_info; + acpi_status status; + u32 enable_mask; + + /* Get the info block for the entire GPE register */ + + gpe_register_info = gpe_event_info->register_info; + if (!gpe_register_info) { + return (AE_NOT_EXIST); + } + + /* Get current value of the enable register that contains this GPE */ + + status = acpi_read(&enable_mask, &gpe_register_info->enable_address); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* Clear just the bit that corresponds to this GPE */ + + ACPI_CLEAR_BIT(enable_mask, + ((u32) 1 << + (gpe_event_info->gpe_number - + gpe_register_info->base_gpe_number))); + + /* Write the updated enable mask */ + + status = acpi_write(enable_mask, &gpe_register_info->enable_address); + return (status); +} + +/****************************************************************************** + * + * FUNCTION: acpi_hw_write_gpe_enable_reg + * + * PARAMETERS: gpe_event_info - Info block for the GPE to be enabled + * + * RETURN: Status + * + * DESCRIPTION: Write a GPE enable register. Note: The bit for this GPE must + * already be cleared or set in the parent register + * enable_for_run mask. + * + ******************************************************************************/ + +acpi_status +acpi_hw_write_gpe_enable_reg(struct acpi_gpe_event_info * gpe_event_info) +{ + struct acpi_gpe_register_info *gpe_register_info; + acpi_status status; + + ACPI_FUNCTION_ENTRY(); + + /* Get the info block for the entire GPE register */ + + gpe_register_info = gpe_event_info->register_info; + if (!gpe_register_info) { + return (AE_NOT_EXIST); + } + + /* Write the entire GPE (runtime) enable register */ + + status = acpi_write(gpe_register_info->enable_for_run, + &gpe_register_info->enable_address); + + return (status); +} + +/****************************************************************************** + * + * FUNCTION: acpi_hw_clear_gpe + * + * PARAMETERS: gpe_event_info - Info block for the GPE to be cleared + * + * RETURN: Status + * + * DESCRIPTION: Clear the status bit for a single GPE. + * + ******************************************************************************/ + +acpi_status acpi_hw_clear_gpe(struct acpi_gpe_event_info * gpe_event_info) +{ + acpi_status status; + u8 register_bit; + + ACPI_FUNCTION_ENTRY(); + + register_bit = (u8) + (1 << + (gpe_event_info->gpe_number - + gpe_event_info->register_info->base_gpe_number)); + + /* + * Write a one to the appropriate bit in the status register to + * clear this GPE. + */ + status = acpi_write(register_bit, + &gpe_event_info->register_info->status_address); + + return (status); +} + +/****************************************************************************** + * + * FUNCTION: acpi_hw_get_gpe_status + * + * PARAMETERS: gpe_event_info - Info block for the GPE to queried + * event_status - Where the GPE status is returned + * + * RETURN: Status + * + * DESCRIPTION: Return the status of a single GPE. + * + ******************************************************************************/ + +acpi_status +acpi_hw_get_gpe_status(struct acpi_gpe_event_info * gpe_event_info, + acpi_event_status * event_status) +{ + u32 in_byte; + u8 register_bit; + struct acpi_gpe_register_info *gpe_register_info; + acpi_status status; + acpi_event_status local_event_status = 0; + + ACPI_FUNCTION_ENTRY(); + + if (!event_status) { + return (AE_BAD_PARAMETER); + } + + /* Get the info block for the entire GPE register */ + + gpe_register_info = gpe_event_info->register_info; + + /* Get the register bitmask for this GPE */ + + register_bit = (u8) + (1 << + (gpe_event_info->gpe_number - + gpe_event_info->register_info->base_gpe_number)); + + /* GPE currently enabled? (enabled for runtime?) */ + + if (register_bit & gpe_register_info->enable_for_run) { + local_event_status |= ACPI_EVENT_FLAG_ENABLED; + } + + /* GPE enabled for wake? */ + + if (register_bit & gpe_register_info->enable_for_wake) { + local_event_status |= ACPI_EVENT_FLAG_WAKE_ENABLED; + } + + /* GPE currently active (status bit == 1)? */ + + status = acpi_read(&in_byte, &gpe_register_info->status_address); + if (ACPI_FAILURE(status)) { + goto unlock_and_exit; + } + + if (register_bit & in_byte) { + local_event_status |= ACPI_EVENT_FLAG_SET; + } + + /* Set return value */ + + (*event_status) = local_event_status; + + unlock_and_exit: + return (status); +} + +/****************************************************************************** + * + * FUNCTION: acpi_hw_disable_gpe_block + * + * PARAMETERS: gpe_xrupt_info - GPE Interrupt info + * gpe_block - Gpe Block info + * + * RETURN: Status + * + * DESCRIPTION: Disable all GPEs within a single GPE block + * + ******************************************************************************/ + +acpi_status +acpi_hw_disable_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, + struct acpi_gpe_block_info *gpe_block, void *context) +{ + u32 i; + acpi_status status; + + /* Examine each GPE Register within the block */ + + for (i = 0; i < gpe_block->register_count; i++) { + + /* Disable all GPEs in this register */ + + status = + acpi_write(0x00, + &gpe_block->register_info[i].enable_address); + if (ACPI_FAILURE(status)) { + return (status); + } + } + + return (AE_OK); +} + +/****************************************************************************** + * + * FUNCTION: acpi_hw_clear_gpe_block + * + * PARAMETERS: gpe_xrupt_info - GPE Interrupt info + * gpe_block - Gpe Block info + * + * RETURN: Status + * + * DESCRIPTION: Clear status bits for all GPEs within a single GPE block + * + ******************************************************************************/ + +acpi_status +acpi_hw_clear_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, + struct acpi_gpe_block_info *gpe_block, void *context) +{ + u32 i; + acpi_status status; + + /* Examine each GPE Register within the block */ + + for (i = 0; i < gpe_block->register_count; i++) { + + /* Clear status on all GPEs in this register */ + + status = + acpi_write(0xFF, + &gpe_block->register_info[i].status_address); + if (ACPI_FAILURE(status)) { + return (status); + } + } + + return (AE_OK); +} + +/****************************************************************************** + * + * FUNCTION: acpi_hw_enable_runtime_gpe_block + * + * PARAMETERS: gpe_xrupt_info - GPE Interrupt info + * gpe_block - Gpe Block info + * + * RETURN: Status + * + * DESCRIPTION: Enable all "runtime" GPEs within a single GPE block. Includes + * combination wake/run GPEs. + * + ******************************************************************************/ + +acpi_status +acpi_hw_enable_runtime_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, + struct acpi_gpe_block_info *gpe_block, void *context) +{ + u32 i; + acpi_status status; + + /* NOTE: assumes that all GPEs are currently disabled */ + + /* Examine each GPE Register within the block */ + + for (i = 0; i < gpe_block->register_count; i++) { + if (!gpe_block->register_info[i].enable_for_run) { + continue; + } + + /* Enable all "runtime" GPEs in this register */ + + status = acpi_write(gpe_block->register_info[i].enable_for_run, + &gpe_block->register_info[i]. + enable_address); + if (ACPI_FAILURE(status)) { + return (status); + } + } + + return (AE_OK); +} + +/****************************************************************************** + * + * FUNCTION: acpi_hw_enable_wakeup_gpe_block + * + * PARAMETERS: gpe_xrupt_info - GPE Interrupt info + * gpe_block - Gpe Block info + * + * RETURN: Status + * + * DESCRIPTION: Enable all "wake" GPEs within a single GPE block. Includes + * combination wake/run GPEs. + * + ******************************************************************************/ + +static acpi_status +acpi_hw_enable_wakeup_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, + struct acpi_gpe_block_info *gpe_block, + void *context) +{ + u32 i; + acpi_status status; + + /* Examine each GPE Register within the block */ + + for (i = 0; i < gpe_block->register_count; i++) { + if (!gpe_block->register_info[i].enable_for_wake) { + continue; + } + + /* Enable all "wake" GPEs in this register */ + + status = acpi_write(gpe_block->register_info[i].enable_for_wake, + &gpe_block->register_info[i]. + enable_address); + if (ACPI_FAILURE(status)) { + return (status); + } + } + + return (AE_OK); +} + +/****************************************************************************** + * + * FUNCTION: acpi_hw_disable_all_gpes + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Disable and clear all GPEs in all GPE blocks + * + ******************************************************************************/ + +acpi_status acpi_hw_disable_all_gpes(void) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(hw_disable_all_gpes); + + status = acpi_ev_walk_gpe_list(acpi_hw_disable_gpe_block, NULL); + status = acpi_ev_walk_gpe_list(acpi_hw_clear_gpe_block, NULL); + return_ACPI_STATUS(status); +} + +/****************************************************************************** + * + * FUNCTION: acpi_hw_enable_all_runtime_gpes + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Enable all "runtime" GPEs, in all GPE blocks + * + ******************************************************************************/ + +acpi_status acpi_hw_enable_all_runtime_gpes(void) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(hw_enable_all_runtime_gpes); + + status = acpi_ev_walk_gpe_list(acpi_hw_enable_runtime_gpe_block, NULL); + return_ACPI_STATUS(status); +} + +/****************************************************************************** + * + * FUNCTION: acpi_hw_enable_all_wakeup_gpes + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Enable all "wakeup" GPEs, in all GPE blocks + * + ******************************************************************************/ + +acpi_status acpi_hw_enable_all_wakeup_gpes(void) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(hw_enable_all_wakeup_gpes); + + status = acpi_ev_walk_gpe_list(acpi_hw_enable_wakeup_gpe_block, NULL); + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/hwregs.c b/drivers/acpi/acpica/hwregs.c new file mode 100644 index 000000000000..4bc3bbba6e9c --- /dev/null +++ b/drivers/acpi/acpica/hwregs.c @@ -0,0 +1,353 @@ + +/******************************************************************************* + * + * Module Name: hwregs - Read/write access functions for the various ACPI + * control and status registers. + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include + +#define _COMPONENT ACPI_HARDWARE +ACPI_MODULE_NAME("hwregs") + +/******************************************************************************* + * + * FUNCTION: acpi_hw_clear_acpi_status + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Clears all fixed and general purpose status bits + * THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED + * + ******************************************************************************/ +acpi_status acpi_hw_clear_acpi_status(void) +{ + acpi_status status; + acpi_cpu_flags lock_flags = 0; + + ACPI_FUNCTION_TRACE(hw_clear_acpi_status); + + ACPI_DEBUG_PRINT((ACPI_DB_IO, "About to write %04X to %04X\n", + ACPI_BITMASK_ALL_FIXED_STATUS, + (u16) acpi_gbl_FADT.xpm1a_event_block.address)); + + lock_flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock); + + status = acpi_hw_register_write(ACPI_REGISTER_PM1_STATUS, + ACPI_BITMASK_ALL_FIXED_STATUS); + if (ACPI_FAILURE(status)) { + goto unlock_and_exit; + } + + /* Clear the fixed events */ + + if (acpi_gbl_FADT.xpm1b_event_block.address) { + status = acpi_write(ACPI_BITMASK_ALL_FIXED_STATUS, + &acpi_gbl_FADT.xpm1b_event_block); + if (ACPI_FAILURE(status)) { + goto unlock_and_exit; + } + } + + /* Clear the GPE Bits in all GPE registers in all GPE blocks */ + + status = acpi_ev_walk_gpe_list(acpi_hw_clear_gpe_block, NULL); + + unlock_and_exit: + acpi_os_release_lock(acpi_gbl_hardware_lock, lock_flags); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_hw_get_register_bit_mask + * + * PARAMETERS: register_id - Index of ACPI Register to access + * + * RETURN: The bitmask to be used when accessing the register + * + * DESCRIPTION: Map register_id into a register bitmask. + * + ******************************************************************************/ + +struct acpi_bit_register_info *acpi_hw_get_bit_register_info(u32 register_id) +{ + ACPI_FUNCTION_ENTRY(); + + if (register_id > ACPI_BITREG_MAX) { + ACPI_ERROR((AE_INFO, "Invalid BitRegister ID: %X", + register_id)); + return (NULL); + } + + return (&acpi_gbl_bit_register_info[register_id]); +} + +/****************************************************************************** + * + * FUNCTION: acpi_hw_register_read + * + * PARAMETERS: register_id - ACPI Register ID + * return_value - Where the register value is returned + * + * RETURN: Status and the value read. + * + * DESCRIPTION: Read from the specified ACPI register + * + ******************************************************************************/ +acpi_status +acpi_hw_register_read(u32 register_id, u32 * return_value) +{ + u32 value1 = 0; + u32 value2 = 0; + acpi_status status; + + ACPI_FUNCTION_TRACE(hw_register_read); + + switch (register_id) { + case ACPI_REGISTER_PM1_STATUS: /* 16-bit access */ + + status = acpi_read(&value1, &acpi_gbl_FADT.xpm1a_event_block); + if (ACPI_FAILURE(status)) { + goto exit; + } + + /* PM1B is optional */ + + status = acpi_read(&value2, &acpi_gbl_FADT.xpm1b_event_block); + value1 |= value2; + break; + + case ACPI_REGISTER_PM1_ENABLE: /* 16-bit access */ + + status = acpi_read(&value1, &acpi_gbl_xpm1a_enable); + if (ACPI_FAILURE(status)) { + goto exit; + } + + /* PM1B is optional */ + + status = acpi_read(&value2, &acpi_gbl_xpm1b_enable); + value1 |= value2; + break; + + case ACPI_REGISTER_PM1_CONTROL: /* 16-bit access */ + + status = acpi_read(&value1, &acpi_gbl_FADT.xpm1a_control_block); + if (ACPI_FAILURE(status)) { + goto exit; + } + + status = acpi_read(&value2, &acpi_gbl_FADT.xpm1b_control_block); + value1 |= value2; + break; + + case ACPI_REGISTER_PM2_CONTROL: /* 8-bit access */ + + status = acpi_read(&value1, &acpi_gbl_FADT.xpm2_control_block); + break; + + case ACPI_REGISTER_PM_TIMER: /* 32-bit access */ + + status = acpi_read(&value1, &acpi_gbl_FADT.xpm_timer_block); + break; + + case ACPI_REGISTER_SMI_COMMAND_BLOCK: /* 8-bit access */ + + status = + acpi_os_read_port(acpi_gbl_FADT.smi_command, &value1, 8); + break; + + default: + ACPI_ERROR((AE_INFO, "Unknown Register ID: %X", register_id)); + status = AE_BAD_PARAMETER; + break; + } + + exit: + + if (ACPI_SUCCESS(status)) { + *return_value = value1; + } + + return_ACPI_STATUS(status); +} + +/****************************************************************************** + * + * FUNCTION: acpi_hw_register_write + * + * PARAMETERS: register_id - ACPI Register ID + * Value - The value to write + * + * RETURN: Status + * + * DESCRIPTION: Write to the specified ACPI register + * + * NOTE: In accordance with the ACPI specification, this function automatically + * preserves the value of the following bits, meaning that these bits cannot be + * changed via this interface: + * + * PM1_CONTROL[0] = SCI_EN + * PM1_CONTROL[9] + * PM1_STATUS[11] + * + * ACPI References: + * 1) Hardware Ignored Bits: When software writes to a register with ignored + * bit fields, it preserves the ignored bit fields + * 2) SCI_EN: OSPM always preserves this bit position + * + ******************************************************************************/ + +acpi_status acpi_hw_register_write(u32 register_id, u32 value) +{ + acpi_status status; + u32 read_value; + + ACPI_FUNCTION_TRACE(hw_register_write); + + switch (register_id) { + case ACPI_REGISTER_PM1_STATUS: /* 16-bit access */ + + /* Perform a read first to preserve certain bits (per ACPI spec) */ + + status = acpi_hw_register_read(ACPI_REGISTER_PM1_STATUS, + &read_value); + if (ACPI_FAILURE(status)) { + goto exit; + } + + /* Insert the bits to be preserved */ + + ACPI_INSERT_BITS(value, ACPI_PM1_STATUS_PRESERVED_BITS, + read_value); + + /* Now we can write the data */ + + status = acpi_write(value, &acpi_gbl_FADT.xpm1a_event_block); + if (ACPI_FAILURE(status)) { + goto exit; + } + + /* PM1B is optional */ + + status = acpi_write(value, &acpi_gbl_FADT.xpm1b_event_block); + break; + + case ACPI_REGISTER_PM1_ENABLE: /* 16-bit access */ + + status = acpi_write(value, &acpi_gbl_xpm1a_enable); + if (ACPI_FAILURE(status)) { + goto exit; + } + + /* PM1B is optional */ + + status = acpi_write(value, &acpi_gbl_xpm1b_enable); + break; + + case ACPI_REGISTER_PM1_CONTROL: /* 16-bit access */ + + /* + * Perform a read first to preserve certain bits (per ACPI spec) + */ + status = acpi_hw_register_read(ACPI_REGISTER_PM1_CONTROL, + &read_value); + if (ACPI_FAILURE(status)) { + goto exit; + } + + /* Insert the bits to be preserved */ + + ACPI_INSERT_BITS(value, ACPI_PM1_CONTROL_PRESERVED_BITS, + read_value); + + /* Now we can write the data */ + + status = acpi_write(value, &acpi_gbl_FADT.xpm1a_control_block); + if (ACPI_FAILURE(status)) { + goto exit; + } + + status = acpi_write(value, &acpi_gbl_FADT.xpm1b_control_block); + break; + + case ACPI_REGISTER_PM1A_CONTROL: /* 16-bit access */ + + status = acpi_write(value, &acpi_gbl_FADT.xpm1a_control_block); + break; + + case ACPI_REGISTER_PM1B_CONTROL: /* 16-bit access */ + + status = acpi_write(value, &acpi_gbl_FADT.xpm1b_control_block); + break; + + case ACPI_REGISTER_PM2_CONTROL: /* 8-bit access */ + + status = acpi_write(value, &acpi_gbl_FADT.xpm2_control_block); + break; + + case ACPI_REGISTER_PM_TIMER: /* 32-bit access */ + + status = acpi_write(value, &acpi_gbl_FADT.xpm_timer_block); + break; + + case ACPI_REGISTER_SMI_COMMAND_BLOCK: /* 8-bit access */ + + /* SMI_CMD is currently always in IO space */ + + status = + acpi_os_write_port(acpi_gbl_FADT.smi_command, value, 8); + break; + + default: + status = AE_BAD_PARAMETER; + break; + } + + exit: + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/hwsleep.c b/drivers/acpi/acpica/hwsleep.c new file mode 100644 index 000000000000..54dd3ee0760c --- /dev/null +++ b/drivers/acpi/acpica/hwsleep.c @@ -0,0 +1,629 @@ + +/****************************************************************************** + * + * Name: hwsleep.c - ACPI Hardware Sleep/Wake Interface + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_HARDWARE +ACPI_MODULE_NAME("hwsleep") + +/******************************************************************************* + * + * FUNCTION: acpi_set_firmware_waking_vector + * + * PARAMETERS: physical_address - 32-bit physical address of ACPI real mode + * entry point. + * + * RETURN: Status + * + * DESCRIPTION: Sets the 32-bit firmware_waking_vector field of the FACS + * + ******************************************************************************/ +acpi_status +acpi_set_firmware_waking_vector(u32 physical_address) +{ + ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vector); + + + /* + * According to the ACPI specification 2.0c and later, the 64-bit + * waking vector should be cleared and the 32-bit waking vector should + * be used, unless we want the wake-up code to be called by the BIOS in + * Protected Mode. Some systems (for example HP dv5-1004nr) are known + * to fail to resume if the 64-bit vector is used. + */ + + /* Set the 32-bit vector */ + + acpi_gbl_FACS->firmware_waking_vector = physical_address; + + /* Clear the 64-bit vector if it exists */ + + if ((acpi_gbl_FACS->length > 32) && (acpi_gbl_FACS->version >= 1)) { + acpi_gbl_FACS->xfirmware_waking_vector = 0; + } + + return_ACPI_STATUS(AE_OK); +} + +ACPI_EXPORT_SYMBOL(acpi_set_firmware_waking_vector) + +/******************************************************************************* + * + * FUNCTION: acpi_set_firmware_waking_vector64 + * + * PARAMETERS: physical_address - 64-bit physical address of ACPI protected + * mode entry point. + * + * RETURN: Status + * + * DESCRIPTION: Sets the 64-bit X_firmware_waking_vector field of the FACS, if + * it exists in the table. + * + ******************************************************************************/ +acpi_status +acpi_set_firmware_waking_vector64(u64 physical_address) +{ + ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vector64); + + + /* Determine if the 64-bit vector actually exists */ + + if ((acpi_gbl_FACS->length <= 32) || (acpi_gbl_FACS->version < 1)) { + return_ACPI_STATUS(AE_NOT_EXIST); + } + + /* Clear 32-bit vector, set the 64-bit X_ vector */ + + acpi_gbl_FACS->firmware_waking_vector = 0; + acpi_gbl_FACS->xfirmware_waking_vector = physical_address; + + return_ACPI_STATUS(AE_OK); +} + +ACPI_EXPORT_SYMBOL(acpi_set_firmware_waking_vector64) + +/******************************************************************************* + * + * FUNCTION: acpi_enter_sleep_state_prep + * + * PARAMETERS: sleep_state - Which sleep state to enter + * + * RETURN: Status + * + * DESCRIPTION: Prepare to enter a system sleep state (see ACPI 2.0 spec p 231) + * This function must execute with interrupts enabled. + * We break sleeping into 2 stages so that OSPM can handle + * various OS-specific tasks between the two steps. + * + ******************************************************************************/ +acpi_status acpi_enter_sleep_state_prep(u8 sleep_state) +{ + acpi_status status; + struct acpi_object_list arg_list; + union acpi_object arg; + + ACPI_FUNCTION_TRACE(acpi_enter_sleep_state_prep); + + /* + * _PSW methods could be run here to enable wake-on keyboard, LAN, etc. + */ + status = acpi_get_sleep_type_data(sleep_state, + &acpi_gbl_sleep_type_a, + &acpi_gbl_sleep_type_b); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Setup parameter object */ + + arg_list.count = 1; + arg_list.pointer = &arg; + + arg.type = ACPI_TYPE_INTEGER; + arg.integer.value = sleep_state; + + /* Run the _PTS method */ + + status = acpi_evaluate_object(NULL, METHOD_NAME__PTS, &arg_list, NULL); + if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { + return_ACPI_STATUS(status); + } + + /* Setup the argument to _SST */ + + switch (sleep_state) { + case ACPI_STATE_S0: + arg.integer.value = ACPI_SST_WORKING; + break; + + case ACPI_STATE_S1: + case ACPI_STATE_S2: + case ACPI_STATE_S3: + arg.integer.value = ACPI_SST_SLEEPING; + break; + + case ACPI_STATE_S4: + arg.integer.value = ACPI_SST_SLEEP_CONTEXT; + break; + + default: + arg.integer.value = ACPI_SST_INDICATOR_OFF; /* Default is off */ + break; + } + + /* + * Set the system indicators to show the desired sleep state. + * _SST is an optional method (return no error if not found) + */ + status = acpi_evaluate_object(NULL, METHOD_NAME__SST, &arg_list, NULL); + if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { + ACPI_EXCEPTION((AE_INFO, status, + "While executing method _SST")); + } + + return_ACPI_STATUS(AE_OK); +} + +ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_prep) + +/******************************************************************************* + * + * FUNCTION: acpi_enter_sleep_state + * + * PARAMETERS: sleep_state - Which sleep state to enter + * + * RETURN: Status + * + * DESCRIPTION: Enter a system sleep state (see ACPI 2.0 spec p 231) + * THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED + * + ******************************************************************************/ +acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state) +{ + u32 PM1Acontrol; + u32 PM1Bcontrol; + struct acpi_bit_register_info *sleep_type_reg_info; + struct acpi_bit_register_info *sleep_enable_reg_info; + u32 in_value; + struct acpi_object_list arg_list; + union acpi_object arg; + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_enter_sleep_state); + + if ((acpi_gbl_sleep_type_a > ACPI_SLEEP_TYPE_MAX) || + (acpi_gbl_sleep_type_b > ACPI_SLEEP_TYPE_MAX)) { + ACPI_ERROR((AE_INFO, "Sleep values out of range: A=%X B=%X", + acpi_gbl_sleep_type_a, acpi_gbl_sleep_type_b)); + return_ACPI_STATUS(AE_AML_OPERAND_VALUE); + } + + sleep_type_reg_info = + acpi_hw_get_bit_register_info(ACPI_BITREG_SLEEP_TYPE_A); + sleep_enable_reg_info = + acpi_hw_get_bit_register_info(ACPI_BITREG_SLEEP_ENABLE); + + /* Clear wake status */ + + status = acpi_set_register(ACPI_BITREG_WAKE_STATUS, 1); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Clear all fixed and general purpose status bits */ + + status = acpi_hw_clear_acpi_status(); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * 1) Disable/Clear all GPEs + * 2) Enable all wakeup GPEs + */ + status = acpi_hw_disable_all_gpes(); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + acpi_gbl_system_awake_and_running = FALSE; + + status = acpi_hw_enable_all_wakeup_gpes(); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Execute the _GTS method */ + + arg_list.count = 1; + arg_list.pointer = &arg; + arg.type = ACPI_TYPE_INTEGER; + arg.integer.value = sleep_state; + + status = acpi_evaluate_object(NULL, METHOD_NAME__GTS, &arg_list, NULL); + if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { + return_ACPI_STATUS(status); + } + + /* Get current value of PM1A control */ + + status = acpi_hw_register_read(ACPI_REGISTER_PM1_CONTROL, &PM1Acontrol); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + ACPI_DEBUG_PRINT((ACPI_DB_INIT, + "Entering sleep state [S%d]\n", sleep_state)); + + /* Clear SLP_EN and SLP_TYP fields */ + + PM1Acontrol &= ~(sleep_type_reg_info->access_bit_mask | + sleep_enable_reg_info->access_bit_mask); + PM1Bcontrol = PM1Acontrol; + + /* Insert SLP_TYP bits */ + + PM1Acontrol |= + (acpi_gbl_sleep_type_a << sleep_type_reg_info->bit_position); + PM1Bcontrol |= + (acpi_gbl_sleep_type_b << sleep_type_reg_info->bit_position); + + /* + * We split the writes of SLP_TYP and SLP_EN to workaround + * poorly implemented hardware. + */ + + /* Write #1: fill in SLP_TYP data */ + + status = acpi_hw_register_write(ACPI_REGISTER_PM1A_CONTROL, + PM1Acontrol); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + status = acpi_hw_register_write(ACPI_REGISTER_PM1B_CONTROL, + PM1Bcontrol); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Insert SLP_ENABLE bit */ + + PM1Acontrol |= sleep_enable_reg_info->access_bit_mask; + PM1Bcontrol |= sleep_enable_reg_info->access_bit_mask; + + /* Write #2: SLP_TYP + SLP_EN */ + + ACPI_FLUSH_CPU_CACHE(); + + status = acpi_hw_register_write(ACPI_REGISTER_PM1A_CONTROL, + PM1Acontrol); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + status = acpi_hw_register_write(ACPI_REGISTER_PM1B_CONTROL, + PM1Bcontrol); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + if (sleep_state > ACPI_STATE_S3) { + /* + * We wanted to sleep > S3, but it didn't happen (by virtue of the + * fact that we are still executing!) + * + * Wait ten seconds, then try again. This is to get S4/S5 to work on + * all machines. + * + * We wait so long to allow chipsets that poll this reg very slowly to + * still read the right value. Ideally, this block would go + * away entirely. + */ + acpi_os_stall(10000000); + + status = acpi_hw_register_write(ACPI_REGISTER_PM1_CONTROL, + sleep_enable_reg_info-> + access_bit_mask); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + + /* Wait until we enter sleep state */ + + do { + status = acpi_get_register_unlocked(ACPI_BITREG_WAKE_STATUS, + &in_value); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Spin until we wake */ + + } while (!in_value); + + return_ACPI_STATUS(AE_OK); +} + +ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state) + +/******************************************************************************* + * + * FUNCTION: acpi_enter_sleep_state_s4bios + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Perform a S4 bios request. + * THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED + * + ******************************************************************************/ +acpi_status asmlinkage acpi_enter_sleep_state_s4bios(void) +{ + u32 in_value; + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_enter_sleep_state_s4bios); + + status = acpi_set_register(ACPI_BITREG_WAKE_STATUS, 1); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + status = acpi_hw_clear_acpi_status(); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * 1) Disable/Clear all GPEs + * 2) Enable all wakeup GPEs + */ + status = acpi_hw_disable_all_gpes(); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + acpi_gbl_system_awake_and_running = FALSE; + + status = acpi_hw_enable_all_wakeup_gpes(); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + ACPI_FLUSH_CPU_CACHE(); + + status = acpi_os_write_port(acpi_gbl_FADT.smi_command, + (u32) acpi_gbl_FADT.S4bios_request, 8); + + do { + acpi_os_stall(1000); + status = acpi_get_register(ACPI_BITREG_WAKE_STATUS, &in_value); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } while (!in_value); + + return_ACPI_STATUS(AE_OK); +} + +ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_s4bios) + +/******************************************************************************* + * + * FUNCTION: acpi_leave_sleep_state_prep + * + * PARAMETERS: sleep_state - Which sleep state we are exiting + * + * RETURN: Status + * + * DESCRIPTION: Perform the first state of OS-independent ACPI cleanup after a + * sleep. + * Called with interrupts DISABLED. + * + ******************************************************************************/ +acpi_status acpi_leave_sleep_state_prep(u8 sleep_state) +{ + struct acpi_object_list arg_list; + union acpi_object arg; + acpi_status status; + struct acpi_bit_register_info *sleep_type_reg_info; + struct acpi_bit_register_info *sleep_enable_reg_info; + u32 PM1Acontrol; + u32 PM1Bcontrol; + + ACPI_FUNCTION_TRACE(acpi_leave_sleep_state_prep); + + /* + * Set SLP_TYPE and SLP_EN to state S0. + * This is unclear from the ACPI Spec, but it is required + * by some machines. + */ + status = acpi_get_sleep_type_data(ACPI_STATE_S0, + &acpi_gbl_sleep_type_a, + &acpi_gbl_sleep_type_b); + if (ACPI_SUCCESS(status)) { + sleep_type_reg_info = + acpi_hw_get_bit_register_info(ACPI_BITREG_SLEEP_TYPE_A); + sleep_enable_reg_info = + acpi_hw_get_bit_register_info(ACPI_BITREG_SLEEP_ENABLE); + + /* Get current value of PM1A control */ + + status = acpi_hw_register_read(ACPI_REGISTER_PM1_CONTROL, + &PM1Acontrol); + if (ACPI_SUCCESS(status)) { + + /* Clear SLP_EN and SLP_TYP fields */ + + PM1Acontrol &= ~(sleep_type_reg_info->access_bit_mask | + sleep_enable_reg_info-> + access_bit_mask); + PM1Bcontrol = PM1Acontrol; + + /* Insert SLP_TYP bits */ + + PM1Acontrol |= + (acpi_gbl_sleep_type_a << sleep_type_reg_info-> + bit_position); + PM1Bcontrol |= + (acpi_gbl_sleep_type_b << sleep_type_reg_info-> + bit_position); + + /* Just ignore any errors */ + + (void)acpi_hw_register_write(ACPI_REGISTER_PM1A_CONTROL, + PM1Acontrol); + (void)acpi_hw_register_write(ACPI_REGISTER_PM1B_CONTROL, + PM1Bcontrol); + } + } + + /* Execute the _BFS method */ + + arg_list.count = 1; + arg_list.pointer = &arg; + arg.type = ACPI_TYPE_INTEGER; + arg.integer.value = sleep_state; + + status = acpi_evaluate_object(NULL, METHOD_NAME__BFS, &arg_list, NULL); + if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { + ACPI_EXCEPTION((AE_INFO, status, "During Method _BFS")); + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_leave_sleep_state + * + * PARAMETERS: sleep_state - Which sleep state we just exited + * + * RETURN: Status + * + * DESCRIPTION: Perform OS-independent ACPI cleanup after a sleep + * Called with interrupts ENABLED. + * + ******************************************************************************/ +acpi_status acpi_leave_sleep_state(u8 sleep_state) +{ + struct acpi_object_list arg_list; + union acpi_object arg; + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_leave_sleep_state); + + /* Ensure enter_sleep_state_prep -> enter_sleep_state ordering */ + + acpi_gbl_sleep_type_a = ACPI_SLEEP_TYPE_INVALID; + + /* Setup parameter object */ + + arg_list.count = 1; + arg_list.pointer = &arg; + arg.type = ACPI_TYPE_INTEGER; + + /* Ignore any errors from these methods */ + + arg.integer.value = ACPI_SST_WAKING; + status = acpi_evaluate_object(NULL, METHOD_NAME__SST, &arg_list, NULL); + if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { + ACPI_EXCEPTION((AE_INFO, status, "During Method _SST")); + } + + /* + * GPEs must be enabled before _WAK is called as GPEs + * might get fired there + * + * Restore the GPEs: + * 1) Disable/Clear all GPEs + * 2) Enable all runtime GPEs + */ + status = acpi_hw_disable_all_gpes(); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + status = acpi_hw_enable_all_runtime_gpes(); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + arg.integer.value = sleep_state; + status = acpi_evaluate_object(NULL, METHOD_NAME__WAK, &arg_list, NULL); + if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { + ACPI_EXCEPTION((AE_INFO, status, "During Method _WAK")); + } + /* TBD: _WAK "sometimes" returns stuff - do we want to look at it? */ + + /* + * Some BIOSes assume that WAK_STS will be cleared on resume and use + * it to determine whether the system is rebooting or resuming. Clear + * it for compatibility. + */ + acpi_set_register(ACPI_BITREG_WAKE_STATUS, 1); + + acpi_gbl_system_awake_and_running = TRUE; + + /* Enable power button */ + + (void) + acpi_set_register(acpi_gbl_fixed_event_info + [ACPI_EVENT_POWER_BUTTON].enable_register_id, 1); + + (void) + acpi_set_register(acpi_gbl_fixed_event_info + [ACPI_EVENT_POWER_BUTTON].status_register_id, 1); + + arg.integer.value = ACPI_SST_WORKING; + status = acpi_evaluate_object(NULL, METHOD_NAME__SST, &arg_list, NULL); + if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { + ACPI_EXCEPTION((AE_INFO, status, "During Method _SST")); + } + + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_leave_sleep_state) diff --git a/drivers/acpi/acpica/hwtimer.c b/drivers/acpi/acpica/hwtimer.c new file mode 100644 index 000000000000..d1eac2aad728 --- /dev/null +++ b/drivers/acpi/acpica/hwtimer.c @@ -0,0 +1,188 @@ + +/****************************************************************************** + * + * Name: hwtimer.c - ACPI Power Management Timer Interface + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include + +#define _COMPONENT ACPI_HARDWARE +ACPI_MODULE_NAME("hwtimer") + +/****************************************************************************** + * + * FUNCTION: acpi_get_timer_resolution + * + * PARAMETERS: Resolution - Where the resolution is returned + * + * RETURN: Status and timer resolution + * + * DESCRIPTION: Obtains resolution of the ACPI PM Timer (24 or 32 bits). + * + ******************************************************************************/ +acpi_status acpi_get_timer_resolution(u32 * resolution) +{ + ACPI_FUNCTION_TRACE(acpi_get_timer_resolution); + + if (!resolution) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + if ((acpi_gbl_FADT.flags & ACPI_FADT_32BIT_TIMER) == 0) { + *resolution = 24; + } else { + *resolution = 32; + } + + return_ACPI_STATUS(AE_OK); +} + +ACPI_EXPORT_SYMBOL(acpi_get_timer_resolution) + +/****************************************************************************** + * + * FUNCTION: acpi_get_timer + * + * PARAMETERS: Ticks - Where the timer value is returned + * + * RETURN: Status and current timer value (ticks) + * + * DESCRIPTION: Obtains current value of ACPI PM Timer (in ticks). + * + ******************************************************************************/ +acpi_status acpi_get_timer(u32 * ticks) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_get_timer); + + if (!ticks) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + status = + acpi_hw_low_level_read(32, ticks, &acpi_gbl_FADT.xpm_timer_block); + + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_get_timer) + +/****************************************************************************** + * + * FUNCTION: acpi_get_timer_duration + * + * PARAMETERS: start_ticks - Starting timestamp + * end_ticks - End timestamp + * time_elapsed - Where the elapsed time is returned + * + * RETURN: Status and time_elapsed + * + * DESCRIPTION: Computes the time elapsed (in microseconds) between two + * PM Timer time stamps, taking into account the possibility of + * rollovers, the timer resolution, and timer frequency. + * + * The PM Timer's clock ticks at roughly 3.6 times per + * _microsecond_, and its clock continues through Cx state + * transitions (unlike many CPU timestamp counters) -- making it + * a versatile and accurate timer. + * + * Note that this function accommodates only a single timer + * rollover. Thus for 24-bit timers, this function should only + * be used for calculating durations less than ~4.6 seconds + * (~20 minutes for 32-bit timers) -- calculations below: + * + * 2**24 Ticks / 3,600,000 Ticks/Sec = 4.66 sec + * 2**32 Ticks / 3,600,000 Ticks/Sec = 1193 sec or 19.88 minutes + * + ******************************************************************************/ +acpi_status +acpi_get_timer_duration(u32 start_ticks, u32 end_ticks, u32 * time_elapsed) +{ + acpi_status status; + u32 delta_ticks; + acpi_integer quotient; + + ACPI_FUNCTION_TRACE(acpi_get_timer_duration); + + if (!time_elapsed) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* + * Compute Tick Delta: + * Handle (max one) timer rollovers on 24-bit versus 32-bit timers. + */ + if (start_ticks < end_ticks) { + delta_ticks = end_ticks - start_ticks; + } else if (start_ticks > end_ticks) { + if ((acpi_gbl_FADT.flags & ACPI_FADT_32BIT_TIMER) == 0) { + + /* 24-bit Timer */ + + delta_ticks = + (((0x00FFFFFF - start_ticks) + + end_ticks) & 0x00FFFFFF); + } else { + /* 32-bit Timer */ + + delta_ticks = (0xFFFFFFFF - start_ticks) + end_ticks; + } + } else { /* start_ticks == end_ticks */ + + *time_elapsed = 0; + return_ACPI_STATUS(AE_OK); + } + + /* + * Compute Duration (Requires a 64-bit multiply and divide): + * + * time_elapsed = (delta_ticks * 1000000) / PM_TIMER_FREQUENCY; + */ + status = acpi_ut_short_divide(((u64) delta_ticks) * 1000000, + PM_TIMER_FREQUENCY, "ient, NULL); + + *time_elapsed = (u32) quotient; + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_get_timer_duration) diff --git a/drivers/acpi/acpica/hwxface.c b/drivers/acpi/acpica/hwxface.c new file mode 100644 index 000000000000..a4456fc9462d --- /dev/null +++ b/drivers/acpi/acpica/hwxface.c @@ -0,0 +1,593 @@ + +/****************************************************************************** + * + * Module Name: hwxface - Public ACPICA hardware interfaces + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_HARDWARE +ACPI_MODULE_NAME("hwxface") + +/****************************************************************************** + * + * FUNCTION: acpi_reset + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Set reset register in memory or IO space. Note: Does not + * support reset register in PCI config space, this must be + * handled separately. + * + ******************************************************************************/ +acpi_status acpi_reset(void) +{ + struct acpi_generic_address *reset_reg; + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_reset); + + reset_reg = &acpi_gbl_FADT.reset_register; + + /* Check if the reset register is supported */ + + if (!(acpi_gbl_FADT.flags & ACPI_FADT_RESET_REGISTER) || + !reset_reg->address) { + return_ACPI_STATUS(AE_NOT_EXIST); + } + + /* Write the reset value to the reset register */ + + status = acpi_write(acpi_gbl_FADT.reset_value, reset_reg); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_reset) + +/****************************************************************************** + * + * FUNCTION: acpi_read + * + * PARAMETERS: Value - Where the value is returned + * Reg - GAS register structure + * + * RETURN: Status + * + * DESCRIPTION: Read from either memory or IO space. + * + ******************************************************************************/ +acpi_status acpi_read(u32 *value, struct acpi_generic_address *reg) +{ + u32 width; + u64 address; + acpi_status status; + + ACPI_FUNCTION_NAME(acpi_read); + + /* + * Must have a valid pointer to a GAS structure, and + * a non-zero address within. However, don't return an error + * because the PM1A/B code must not fail if B isn't present. + */ + if (!reg) { + return (AE_OK); + } + + /* Get a local copy of the address. Handles possible alignment issues */ + + ACPI_MOVE_64_TO_64(&address, ®->address); + if (!address) { + return (AE_OK); + } + + /* Supported widths are 8/16/32 */ + + width = reg->bit_width; + if ((width != 8) && (width != 16) && (width != 32)) { + return (AE_SUPPORT); + } + + /* Initialize entire 32-bit return value to zero */ + + *value = 0; + + /* + * Two address spaces supported: Memory or IO. + * PCI_Config is not supported here because the GAS struct is insufficient + */ + switch (reg->space_id) { + case ACPI_ADR_SPACE_SYSTEM_MEMORY: + + status = acpi_os_read_memory((acpi_physical_address) address, + value, width); + break; + + case ACPI_ADR_SPACE_SYSTEM_IO: + + status = + acpi_os_read_port((acpi_io_address) address, value, width); + break; + + default: + ACPI_ERROR((AE_INFO, + "Unsupported address space: %X", reg->space_id)); + return (AE_BAD_PARAMETER); + } + + ACPI_DEBUG_PRINT((ACPI_DB_IO, + "Read: %8.8X width %2d from %8.8X%8.8X (%s)\n", + *value, width, ACPI_FORMAT_UINT64(address), + acpi_ut_get_region_name(reg->space_id))); + + return (status); +} + +ACPI_EXPORT_SYMBOL(acpi_read) + +/****************************************************************************** + * + * FUNCTION: acpi_write + * + * PARAMETERS: Value - To be written + * Reg - GAS register structure + * + * RETURN: Status + * + * DESCRIPTION: Write to either memory or IO space. + * + ******************************************************************************/ +acpi_status acpi_write(u32 value, struct acpi_generic_address *reg) +{ + u32 width; + u64 address; + acpi_status status; + + ACPI_FUNCTION_NAME(acpi_write); + + /* + * Must have a valid pointer to a GAS structure, and + * a non-zero address within. However, don't return an error + * because the PM1A/B code must not fail if B isn't present. + */ + if (!reg) { + return (AE_OK); + } + + /* Get a local copy of the address. Handles possible alignment issues */ + + ACPI_MOVE_64_TO_64(&address, ®->address); + if (!address) { + return (AE_OK); + } + + /* Supported widths are 8/16/32 */ + + width = reg->bit_width; + if ((width != 8) && (width != 16) && (width != 32)) { + return (AE_SUPPORT); + } + + /* + * Two address spaces supported: Memory or IO. + * PCI_Config is not supported here because the GAS struct is insufficient + */ + switch (reg->space_id) { + case ACPI_ADR_SPACE_SYSTEM_MEMORY: + + status = acpi_os_write_memory((acpi_physical_address) address, + value, width); + break; + + case ACPI_ADR_SPACE_SYSTEM_IO: + + status = acpi_os_write_port((acpi_io_address) address, value, + width); + break; + + default: + ACPI_ERROR((AE_INFO, + "Unsupported address space: %X", reg->space_id)); + return (AE_BAD_PARAMETER); + } + + ACPI_DEBUG_PRINT((ACPI_DB_IO, + "Wrote: %8.8X width %2d to %8.8X%8.8X (%s)\n", + value, width, ACPI_FORMAT_UINT64(address), + acpi_ut_get_region_name(reg->space_id))); + + return (status); +} + +ACPI_EXPORT_SYMBOL(acpi_write) + +/******************************************************************************* + * + * FUNCTION: acpi_get_register_unlocked + * + * PARAMETERS: register_id - ID of ACPI bit_register to access + * return_value - Value that was read from the register + * + * RETURN: Status and the value read from specified Register. Value + * returned is normalized to bit0 (is shifted all the way right) + * + * DESCRIPTION: ACPI bit_register read function. Does not acquire the HW lock. + * + ******************************************************************************/ +acpi_status acpi_get_register_unlocked(u32 register_id, u32 *return_value) +{ + u32 register_value = 0; + struct acpi_bit_register_info *bit_reg_info; + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_get_register_unlocked); + + /* Get the info structure corresponding to the requested ACPI Register */ + + bit_reg_info = acpi_hw_get_bit_register_info(register_id); + if (!bit_reg_info) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* Read from the register */ + + status = acpi_hw_register_read(bit_reg_info->parent_register, + ®ister_value); + + if (ACPI_SUCCESS(status)) { + + /* Normalize the value that was read */ + + register_value = + ((register_value & bit_reg_info->access_bit_mask) + >> bit_reg_info->bit_position); + + *return_value = register_value; + + ACPI_DEBUG_PRINT((ACPI_DB_IO, "Read value %8.8X register %X\n", + register_value, + bit_reg_info->parent_register)); + } + + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_get_register_unlocked) + +/******************************************************************************* + * + * FUNCTION: acpi_get_register + * + * PARAMETERS: register_id - ID of ACPI bit_register to access + * return_value - Value that was read from the register + * + * RETURN: Status and the value read from specified Register. Value + * returned is normalized to bit0 (is shifted all the way right) + * + * DESCRIPTION: ACPI bit_register read function. + * + ******************************************************************************/ +acpi_status acpi_get_register(u32 register_id, u32 *return_value) +{ + acpi_status status; + acpi_cpu_flags flags; + + flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock); + status = acpi_get_register_unlocked(register_id, return_value); + acpi_os_release_lock(acpi_gbl_hardware_lock, flags); + + return (status); +} + +ACPI_EXPORT_SYMBOL(acpi_get_register) + +/******************************************************************************* + * + * FUNCTION: acpi_set_register + * + * PARAMETERS: register_id - ID of ACPI bit_register to access + * Value - (only used on write) value to write to the + * Register, NOT pre-normalized to the bit pos + * + * RETURN: Status + * + * DESCRIPTION: ACPI Bit Register write function. + * + ******************************************************************************/ +acpi_status acpi_set_register(u32 register_id, u32 value) +{ + u32 register_value = 0; + struct acpi_bit_register_info *bit_reg_info; + acpi_status status; + acpi_cpu_flags lock_flags; + + ACPI_FUNCTION_TRACE_U32(acpi_set_register, register_id); + + /* Get the info structure corresponding to the requested ACPI Register */ + + bit_reg_info = acpi_hw_get_bit_register_info(register_id); + if (!bit_reg_info) { + ACPI_ERROR((AE_INFO, "Bad ACPI HW RegisterId: %X", + register_id)); + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + lock_flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock); + + /* Always do a register read first so we can insert the new bits */ + + status = acpi_hw_register_read(bit_reg_info->parent_register, + ®ister_value); + if (ACPI_FAILURE(status)) { + goto unlock_and_exit; + } + + /* + * Decode the Register ID + * Register ID = [Register block ID] | [bit ID] + * + * Check bit ID to fine locate Register offset. + * Check Mask to determine Register offset, and then read-write. + */ + switch (bit_reg_info->parent_register) { + case ACPI_REGISTER_PM1_STATUS: + + /* + * Status Registers are different from the rest. Clear by + * writing 1, and writing 0 has no effect. So, the only relevant + * information is the single bit we're interested in, all others should + * be written as 0 so they will be left unchanged. + */ + value = ACPI_REGISTER_PREPARE_BITS(value, + bit_reg_info->bit_position, + bit_reg_info-> + access_bit_mask); + if (value) { + status = + acpi_hw_register_write(ACPI_REGISTER_PM1_STATUS, + (u16) value); + register_value = 0; + } + break; + + case ACPI_REGISTER_PM1_ENABLE: + + ACPI_REGISTER_INSERT_VALUE(register_value, + bit_reg_info->bit_position, + bit_reg_info->access_bit_mask, + value); + + status = acpi_hw_register_write(ACPI_REGISTER_PM1_ENABLE, + (u16) register_value); + break; + + case ACPI_REGISTER_PM1_CONTROL: + + /* + * Write the PM1 Control register. + * Note that at this level, the fact that there are actually TWO + * registers (A and B - and B may not exist) is abstracted. + */ + ACPI_DEBUG_PRINT((ACPI_DB_IO, "PM1 control: Read %X\n", + register_value)); + + ACPI_REGISTER_INSERT_VALUE(register_value, + bit_reg_info->bit_position, + bit_reg_info->access_bit_mask, + value); + + status = acpi_hw_register_write(ACPI_REGISTER_PM1_CONTROL, + (u16) register_value); + break; + + case ACPI_REGISTER_PM2_CONTROL: + + status = acpi_hw_register_read(ACPI_REGISTER_PM2_CONTROL, + ®ister_value); + if (ACPI_FAILURE(status)) { + goto unlock_and_exit; + } + + ACPI_DEBUG_PRINT((ACPI_DB_IO, + "PM2 control: Read %X from %8.8X%8.8X\n", + register_value, + ACPI_FORMAT_UINT64(acpi_gbl_FADT. + xpm2_control_block. + address))); + + ACPI_REGISTER_INSERT_VALUE(register_value, + bit_reg_info->bit_position, + bit_reg_info->access_bit_mask, + value); + + ACPI_DEBUG_PRINT((ACPI_DB_IO, + "About to write %4.4X to %8.8X%8.8X\n", + register_value, + ACPI_FORMAT_UINT64(acpi_gbl_FADT. + xpm2_control_block. + address))); + + status = acpi_hw_register_write(ACPI_REGISTER_PM2_CONTROL, + (u8) (register_value)); + break; + + default: + break; + } + + unlock_and_exit: + + acpi_os_release_lock(acpi_gbl_hardware_lock, lock_flags); + + /* Normalize the value that was read */ + + ACPI_DEBUG_EXEC(register_value = + ((register_value & bit_reg_info->access_bit_mask) >> + bit_reg_info->bit_position)); + + ACPI_DEBUG_PRINT((ACPI_DB_IO, + "Set bits: %8.8X actual %8.8X register %X\n", value, + register_value, bit_reg_info->parent_register)); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_set_register) + +/******************************************************************************* + * + * FUNCTION: acpi_get_sleep_type_data + * + * PARAMETERS: sleep_state - Numeric sleep state + * *sleep_type_a - Where SLP_TYPa is returned + * *sleep_type_b - Where SLP_TYPb is returned + * + * RETURN: Status - ACPI status + * + * DESCRIPTION: Obtain the SLP_TYPa and SLP_TYPb values for the requested sleep + * state. + * + ******************************************************************************/ +acpi_status +acpi_get_sleep_type_data(u8 sleep_state, u8 *sleep_type_a, u8 *sleep_type_b) +{ + acpi_status status = AE_OK; + struct acpi_evaluate_info *info; + + ACPI_FUNCTION_TRACE(acpi_get_sleep_type_data); + + /* Validate parameters */ + + if ((sleep_state > ACPI_S_STATES_MAX) || !sleep_type_a || !sleep_type_b) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* Allocate the evaluation information block */ + + info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info)); + if (!info) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + info->pathname = + ACPI_CAST_PTR(char, acpi_gbl_sleep_state_names[sleep_state]); + + /* Evaluate the namespace object containing the values for this state */ + + status = acpi_ns_evaluate(info); + if (ACPI_FAILURE(status)) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "%s while evaluating SleepState [%s]\n", + acpi_format_exception(status), + info->pathname)); + + goto cleanup; + } + + /* Must have a return object */ + + if (!info->return_object) { + ACPI_ERROR((AE_INFO, "No Sleep State object returned from [%s]", + info->pathname)); + status = AE_NOT_EXIST; + } + + /* It must be of type Package */ + + else if (ACPI_GET_OBJECT_TYPE(info->return_object) != ACPI_TYPE_PACKAGE) { + ACPI_ERROR((AE_INFO, + "Sleep State return object is not a Package")); + status = AE_AML_OPERAND_TYPE; + } + + /* + * The package must have at least two elements. NOTE (March 2005): This + * goes against the current ACPI spec which defines this object as a + * package with one encoded DWORD element. However, existing practice + * by BIOS vendors seems to be to have 2 or more elements, at least + * one per sleep type (A/B). + */ + else if (info->return_object->package.count < 2) { + ACPI_ERROR((AE_INFO, + "Sleep State return package does not have at least two elements")); + status = AE_AML_NO_OPERAND; + } + + /* The first two elements must both be of type Integer */ + + else if ((ACPI_GET_OBJECT_TYPE(info->return_object->package.elements[0]) + != ACPI_TYPE_INTEGER) || + (ACPI_GET_OBJECT_TYPE(info->return_object->package.elements[1]) + != ACPI_TYPE_INTEGER)) { + ACPI_ERROR((AE_INFO, + "Sleep State return package elements are not both Integers (%s, %s)", + acpi_ut_get_object_type_name(info->return_object-> + package.elements[0]), + acpi_ut_get_object_type_name(info->return_object-> + package.elements[1]))); + status = AE_AML_OPERAND_TYPE; + } else { + /* Valid _Sx_ package size, type, and value */ + + *sleep_type_a = (u8) + (info->return_object->package.elements[0])->integer.value; + *sleep_type_b = (u8) + (info->return_object->package.elements[1])->integer.value; + } + + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "While evaluating SleepState [%s], bad Sleep object %p type %s", + info->pathname, info->return_object, + acpi_ut_get_object_type_name(info-> + return_object))); + } + + acpi_ut_remove_reference(info->return_object); + + cleanup: + ACPI_FREE(info); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_get_sleep_type_data) diff --git a/drivers/acpi/acpica/nsaccess.c b/drivers/acpi/acpica/nsaccess.c new file mode 100644 index 000000000000..7954640e69cb --- /dev/null +++ b/drivers/acpi/acpica/nsaccess.c @@ -0,0 +1,676 @@ +/******************************************************************************* + * + * Module Name: nsaccess - Top-level functions for accessing ACPI namespace + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_NAMESPACE +ACPI_MODULE_NAME("nsaccess") + +/******************************************************************************* + * + * FUNCTION: acpi_ns_root_initialize + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Allocate and initialize the default root named objects + * + * MUTEX: Locks namespace for entire execution + * + ******************************************************************************/ +acpi_status acpi_ns_root_initialize(void) +{ + acpi_status status; + const struct acpi_predefined_names *init_val = NULL; + struct acpi_namespace_node *new_node; + union acpi_operand_object *obj_desc; + acpi_string val = NULL; + + ACPI_FUNCTION_TRACE(ns_root_initialize); + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * The global root ptr is initially NULL, so a non-NULL value indicates + * that acpi_ns_root_initialize() has already been called; just return. + */ + if (acpi_gbl_root_node) { + status = AE_OK; + goto unlock_and_exit; + } + + /* + * Tell the rest of the subsystem that the root is initialized + * (This is OK because the namespace is locked) + */ + acpi_gbl_root_node = &acpi_gbl_root_node_struct; + + /* Enter the pre-defined names in the name table */ + + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Entering predefined entries into namespace\n")); + + for (init_val = acpi_gbl_pre_defined_names; init_val->name; init_val++) { + + /* _OSI is optional for now, will be permanent later */ + + if (!ACPI_STRCMP(init_val->name, "_OSI") + && !acpi_gbl_create_osi_method) { + continue; + } + + status = acpi_ns_lookup(NULL, init_val->name, init_val->type, + ACPI_IMODE_LOAD_PASS2, + ACPI_NS_NO_UPSEARCH, NULL, &new_node); + + if (ACPI_FAILURE(status) || (!new_node)) { /* Must be on same line for code converter */ + ACPI_EXCEPTION((AE_INFO, status, + "Could not create predefined name %s", + init_val->name)); + } + + /* + * Name entered successfully. + * If entry in pre_defined_names[] specifies an + * initial value, create the initial value. + */ + if (init_val->val) { + status = acpi_os_predefined_override(init_val, &val); + if (ACPI_FAILURE(status)) { + ACPI_ERROR((AE_INFO, + "Could not override predefined %s", + init_val->name)); + } + + if (!val) { + val = init_val->val; + } + + /* + * Entry requests an initial value, allocate a + * descriptor for it. + */ + obj_desc = + acpi_ut_create_internal_object(init_val->type); + if (!obj_desc) { + status = AE_NO_MEMORY; + goto unlock_and_exit; + } + + /* + * Convert value string from table entry to + * internal representation. Only types actually + * used for initial values are implemented here. + */ + switch (init_val->type) { + case ACPI_TYPE_METHOD: + obj_desc->method.param_count = + (u8) ACPI_TO_INTEGER(val); + obj_desc->common.flags |= AOPOBJ_DATA_VALID; + +#if defined (ACPI_ASL_COMPILER) + + /* Save the parameter count for the i_aSL compiler */ + + new_node->value = obj_desc->method.param_count; +#else + /* Mark this as a very SPECIAL method */ + + obj_desc->method.method_flags = + AML_METHOD_INTERNAL_ONLY; + obj_desc->method.implementation = + acpi_ut_osi_implementation; +#endif + break; + + case ACPI_TYPE_INTEGER: + + obj_desc->integer.value = ACPI_TO_INTEGER(val); + break; + + case ACPI_TYPE_STRING: + + /* + * Build an object around the static string + */ + obj_desc->string.length = + (u32) ACPI_STRLEN(val); + obj_desc->string.pointer = val; + obj_desc->common.flags |= AOPOBJ_STATIC_POINTER; + break; + + case ACPI_TYPE_MUTEX: + + obj_desc->mutex.node = new_node; + obj_desc->mutex.sync_level = + (u8) (ACPI_TO_INTEGER(val) - 1); + + /* Create a mutex */ + + status = + acpi_os_create_mutex(&obj_desc->mutex. + os_mutex); + if (ACPI_FAILURE(status)) { + acpi_ut_remove_reference(obj_desc); + goto unlock_and_exit; + } + + /* Special case for ACPI Global Lock */ + + if (ACPI_STRCMP(init_val->name, "_GL_") == 0) { + acpi_gbl_global_lock_mutex = obj_desc; + + /* Create additional counting semaphore for global lock */ + + status = + acpi_os_create_semaphore(1, 0, + &acpi_gbl_global_lock_semaphore); + if (ACPI_FAILURE(status)) { + acpi_ut_remove_reference + (obj_desc); + goto unlock_and_exit; + } + } + break; + + default: + + ACPI_ERROR((AE_INFO, + "Unsupported initial type value %X", + init_val->type)); + acpi_ut_remove_reference(obj_desc); + obj_desc = NULL; + continue; + } + + /* Store pointer to value descriptor in the Node */ + + status = acpi_ns_attach_object(new_node, obj_desc, + ACPI_GET_OBJECT_TYPE + (obj_desc)); + + /* Remove local reference to the object */ + + acpi_ut_remove_reference(obj_desc); + } + } + + unlock_and_exit: + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + + /* Save a handle to "_GPE", it is always present */ + + if (ACPI_SUCCESS(status)) { + status = acpi_ns_get_node(NULL, "\\_GPE", ACPI_NS_NO_UPSEARCH, + &acpi_gbl_fadt_gpe_device); + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_lookup + * + * PARAMETERS: scope_info - Current scope info block + * Pathname - Search pathname, in internal format + * (as represented in the AML stream) + * Type - Type associated with name + * interpreter_mode - IMODE_LOAD_PASS2 => add name if not found + * Flags - Flags describing the search restrictions + * walk_state - Current state of the walk + * return_node - Where the Node is placed (if found + * or created successfully) + * + * RETURN: Status + * + * DESCRIPTION: Find or enter the passed name in the name space. + * Log an error if name not found in Exec mode. + * + * MUTEX: Assumes namespace is locked. + * + ******************************************************************************/ + +acpi_status +acpi_ns_lookup(union acpi_generic_state *scope_info, + char *pathname, + acpi_object_type type, + acpi_interpreter_mode interpreter_mode, + u32 flags, + struct acpi_walk_state *walk_state, + struct acpi_namespace_node **return_node) +{ + acpi_status status; + char *path = pathname; + struct acpi_namespace_node *prefix_node; + struct acpi_namespace_node *current_node = NULL; + struct acpi_namespace_node *this_node = NULL; + u32 num_segments; + u32 num_carats; + acpi_name simple_name; + acpi_object_type type_to_check_for; + acpi_object_type this_search_type; + u32 search_parent_flag = ACPI_NS_SEARCH_PARENT; + u32 local_flags; + + ACPI_FUNCTION_TRACE(ns_lookup); + + if (!return_node) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + local_flags = flags & ~(ACPI_NS_ERROR_IF_FOUND | ACPI_NS_SEARCH_PARENT); + *return_node = ACPI_ENTRY_NOT_FOUND; + acpi_gbl_ns_lookup_count++; + + if (!acpi_gbl_root_node) { + return_ACPI_STATUS(AE_NO_NAMESPACE); + } + + /* + * Get the prefix scope. + * A null scope means use the root scope + */ + if ((!scope_info) || (!scope_info->scope.node)) { + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, + "Null scope prefix, using root node (%p)\n", + acpi_gbl_root_node)); + + prefix_node = acpi_gbl_root_node; + } else { + prefix_node = scope_info->scope.node; + if (ACPI_GET_DESCRIPTOR_TYPE(prefix_node) != + ACPI_DESC_TYPE_NAMED) { + ACPI_ERROR((AE_INFO, "%p is not a namespace node [%s]", + prefix_node, + acpi_ut_get_descriptor_name(prefix_node))); + return_ACPI_STATUS(AE_AML_INTERNAL); + } + + if (!(flags & ACPI_NS_PREFIX_IS_SCOPE)) { + /* + * This node might not be a actual "scope" node (such as a + * Device/Method, etc.) It could be a Package or other object node. + * Backup up the tree to find the containing scope node. + */ + while (!acpi_ns_opens_scope(prefix_node->type) && + prefix_node->type != ACPI_TYPE_ANY) { + prefix_node = + acpi_ns_get_parent_node(prefix_node); + } + } + } + + /* Save type TBD: may be no longer necessary */ + + type_to_check_for = type; + + /* + * Begin examination of the actual pathname + */ + if (!pathname) { + + /* A Null name_path is allowed and refers to the root */ + + num_segments = 0; + this_node = acpi_gbl_root_node; + path = ""; + + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, + "Null Pathname (Zero segments), Flags=%X\n", + flags)); + } else { + /* + * Name pointer is valid (and must be in internal name format) + * + * Check for scope prefixes: + * + * As represented in the AML stream, a namepath consists of an + * optional scope prefix followed by a name segment part. + * + * If present, the scope prefix is either a Root Prefix (in + * which case the name is fully qualified), or one or more + * Parent Prefixes (in which case the name's scope is relative + * to the current scope). + */ + if (*path == (u8) AML_ROOT_PREFIX) { + + /* Pathname is fully qualified, start from the root */ + + this_node = acpi_gbl_root_node; + search_parent_flag = ACPI_NS_NO_UPSEARCH; + + /* Point to name segment part */ + + path++; + + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, + "Path is absolute from root [%p]\n", + this_node)); + } else { + /* Pathname is relative to current scope, start there */ + + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, + "Searching relative to prefix scope [%4.4s] (%p)\n", + acpi_ut_get_node_name(prefix_node), + prefix_node)); + + /* + * Handle multiple Parent Prefixes (carat) by just getting + * the parent node for each prefix instance. + */ + this_node = prefix_node; + num_carats = 0; + while (*path == (u8) AML_PARENT_PREFIX) { + + /* Name is fully qualified, no search rules apply */ + + search_parent_flag = ACPI_NS_NO_UPSEARCH; + /* + * Point past this prefix to the name segment + * part or the next Parent Prefix + */ + path++; + + /* Backup to the parent node */ + + num_carats++; + this_node = acpi_ns_get_parent_node(this_node); + if (!this_node) { + + /* Current scope has no parent scope */ + + ACPI_ERROR((AE_INFO, + "ACPI path has too many parent prefixes (^) - reached beyond root node")); + return_ACPI_STATUS(AE_NOT_FOUND); + } + } + + if (search_parent_flag == ACPI_NS_NO_UPSEARCH) { + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, + "Search scope is [%4.4s], path has %d carat(s)\n", + acpi_ut_get_node_name + (this_node), num_carats)); + } + } + + /* + * Determine the number of ACPI name segments in this pathname. + * + * The segment part consists of either: + * - A Null name segment (0) + * - A dual_name_prefix followed by two 4-byte name segments + * - A multi_name_prefix followed by a byte indicating the + * number of segments and the segments themselves. + * - A single 4-byte name segment + * + * Examine the name prefix opcode, if any, to determine the number of + * segments. + */ + switch (*path) { + case 0: + /* + * Null name after a root or parent prefixes. We already + * have the correct target node and there are no name segments. + */ + num_segments = 0; + type = this_node->type; + + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, + "Prefix-only Pathname (Zero name segments), Flags=%X\n", + flags)); + break; + + case AML_DUAL_NAME_PREFIX: + + /* More than one name_seg, search rules do not apply */ + + search_parent_flag = ACPI_NS_NO_UPSEARCH; + + /* Two segments, point to first name segment */ + + num_segments = 2; + path++; + + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, + "Dual Pathname (2 segments, Flags=%X)\n", + flags)); + break; + + case AML_MULTI_NAME_PREFIX_OP: + + /* More than one name_seg, search rules do not apply */ + + search_parent_flag = ACPI_NS_NO_UPSEARCH; + + /* Extract segment count, point to first name segment */ + + path++; + num_segments = (u32) (u8) * path; + path++; + + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, + "Multi Pathname (%d Segments, Flags=%X)\n", + num_segments, flags)); + break; + + default: + /* + * Not a Null name, no Dual or Multi prefix, hence there is + * only one name segment and Pathname is already pointing to it. + */ + num_segments = 1; + + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, + "Simple Pathname (1 segment, Flags=%X)\n", + flags)); + break; + } + + ACPI_DEBUG_EXEC(acpi_ns_print_pathname(num_segments, path)); + } + + /* + * Search namespace for each segment of the name. Loop through and + * verify (or add to the namespace) each name segment. + * + * The object type is significant only at the last name + * segment. (We don't care about the types along the path, only + * the type of the final target object.) + */ + this_search_type = ACPI_TYPE_ANY; + current_node = this_node; + while (num_segments && current_node) { + num_segments--; + if (!num_segments) { + /* + * This is the last segment, enable typechecking + */ + this_search_type = type; + + /* + * Only allow automatic parent search (search rules) if the caller + * requested it AND we have a single, non-fully-qualified name_seg + */ + if ((search_parent_flag != ACPI_NS_NO_UPSEARCH) && + (flags & ACPI_NS_SEARCH_PARENT)) { + local_flags |= ACPI_NS_SEARCH_PARENT; + } + + /* Set error flag according to caller */ + + if (flags & ACPI_NS_ERROR_IF_FOUND) { + local_flags |= ACPI_NS_ERROR_IF_FOUND; + } + } + + /* Extract one ACPI name from the front of the pathname */ + + ACPI_MOVE_32_TO_32(&simple_name, path); + + /* Try to find the single (4 character) ACPI name */ + + status = + acpi_ns_search_and_enter(simple_name, walk_state, + current_node, interpreter_mode, + this_search_type, local_flags, + &this_node); + if (ACPI_FAILURE(status)) { + if (status == AE_NOT_FOUND) { + + /* Name not found in ACPI namespace */ + + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, + "Name [%4.4s] not found in scope [%4.4s] %p\n", + (char *)&simple_name, + (char *)¤t_node->name, + current_node)); + } + + *return_node = this_node; + return_ACPI_STATUS(status); + } + + /* More segments to follow? */ + + if (num_segments > 0) { + /* + * If we have an alias to an object that opens a scope (such as a + * device or processor), we need to dereference the alias here so that + * we can access any children of the original node (via the remaining + * segments). + */ + if (this_node->type == ACPI_TYPE_LOCAL_ALIAS) { + if (!this_node->object) { + return_ACPI_STATUS(AE_NOT_EXIST); + } + + if (acpi_ns_opens_scope + (((struct acpi_namespace_node *)this_node-> + object)->type)) { + this_node = + (struct acpi_namespace_node *) + this_node->object; + } + } + } + + /* Special handling for the last segment (num_segments == 0) */ + + else { + /* + * Sanity typecheck of the target object: + * + * If 1) This is the last segment (num_segments == 0) + * 2) And we are looking for a specific type + * (Not checking for TYPE_ANY) + * 3) Which is not an alias + * 4) Which is not a local type (TYPE_SCOPE) + * 5) And the type of target object is known (not TYPE_ANY) + * 6) And target object does not match what we are looking for + * + * Then we have a type mismatch. Just warn and ignore it. + */ + if ((type_to_check_for != ACPI_TYPE_ANY) && + (type_to_check_for != ACPI_TYPE_LOCAL_ALIAS) && + (type_to_check_for != ACPI_TYPE_LOCAL_METHOD_ALIAS) + && (type_to_check_for != ACPI_TYPE_LOCAL_SCOPE) + && (this_node->type != ACPI_TYPE_ANY) + && (this_node->type != type_to_check_for)) { + + /* Complain about a type mismatch */ + + ACPI_WARNING((AE_INFO, + "NsLookup: Type mismatch on %4.4s (%s), searching for (%s)", + ACPI_CAST_PTR(char, &simple_name), + acpi_ut_get_type_name(this_node-> + type), + acpi_ut_get_type_name + (type_to_check_for))); + } + + /* + * If this is the last name segment and we are not looking for a + * specific type, but the type of found object is known, use that type + * to (later) see if it opens a scope. + */ + if (type == ACPI_TYPE_ANY) { + type = this_node->type; + } + } + + /* Point to next name segment and make this node current */ + + path += ACPI_NAME_SIZE; + current_node = this_node; + } + + /* + * Always check if we need to open a new scope + */ + if (!(flags & ACPI_NS_DONT_OPEN_SCOPE) && (walk_state)) { + /* + * If entry is a type which opens a scope, push the new scope on the + * scope stack. + */ + if (acpi_ns_opens_scope(type)) { + status = + acpi_ds_scope_stack_push(this_node, type, + walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + } + + *return_node = this_node; + return_ACPI_STATUS(AE_OK); +} diff --git a/drivers/acpi/acpica/nsalloc.c b/drivers/acpi/acpica/nsalloc.c new file mode 100644 index 000000000000..cb2afbf4e457 --- /dev/null +++ b/drivers/acpi/acpica/nsalloc.c @@ -0,0 +1,497 @@ +/******************************************************************************* + * + * Module Name: nsalloc - Namespace allocation and deletion utilities + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_NAMESPACE +ACPI_MODULE_NAME("nsalloc") + +/******************************************************************************* + * + * FUNCTION: acpi_ns_create_node + * + * PARAMETERS: Name - Name of the new node (4 char ACPI name) + * + * RETURN: New namespace node (Null on failure) + * + * DESCRIPTION: Create a namespace node + * + ******************************************************************************/ +struct acpi_namespace_node *acpi_ns_create_node(u32 name) +{ + struct acpi_namespace_node *node; +#ifdef ACPI_DBG_TRACK_ALLOCATIONS + u32 temp; +#endif + + ACPI_FUNCTION_TRACE(ns_create_node); + + node = acpi_os_acquire_object(acpi_gbl_namespace_cache); + if (!node) { + return_PTR(NULL); + } + + ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_allocated++); + +#ifdef ACPI_DBG_TRACK_ALLOCATIONS + temp = + acpi_gbl_ns_node_list->total_allocated - + acpi_gbl_ns_node_list->total_freed; + if (temp > acpi_gbl_ns_node_list->max_occupied) { + acpi_gbl_ns_node_list->max_occupied = temp; + } +#endif + + node->name.integer = name; + ACPI_SET_DESCRIPTOR_TYPE(node, ACPI_DESC_TYPE_NAMED); + return_PTR(node); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_delete_node + * + * PARAMETERS: Node - Node to be deleted + * + * RETURN: None + * + * DESCRIPTION: Delete a namespace node + * + ******************************************************************************/ + +void acpi_ns_delete_node(struct acpi_namespace_node *node) +{ + struct acpi_namespace_node *parent_node; + struct acpi_namespace_node *prev_node; + struct acpi_namespace_node *next_node; + + ACPI_FUNCTION_TRACE_PTR(ns_delete_node, node); + + parent_node = acpi_ns_get_parent_node(node); + + prev_node = NULL; + next_node = parent_node->child; + + /* Find the node that is the previous peer in the parent's child list */ + + while (next_node != node) { + prev_node = next_node; + next_node = prev_node->peer; + } + + if (prev_node) { + + /* Node is not first child, unlink it */ + + prev_node->peer = next_node->peer; + if (next_node->flags & ANOBJ_END_OF_PEER_LIST) { + prev_node->flags |= ANOBJ_END_OF_PEER_LIST; + } + } else { + /* Node is first child (has no previous peer) */ + + if (next_node->flags & ANOBJ_END_OF_PEER_LIST) { + + /* No peers at all */ + + parent_node->child = NULL; + } else { /* Link peer list to parent */ + + parent_node->child = next_node->peer; + } + } + + ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_freed++); + + /* + * Detach an object if there is one, then delete the node + */ + acpi_ns_detach_object(node); + (void)acpi_os_release_object(acpi_gbl_namespace_cache, node); + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_install_node + * + * PARAMETERS: walk_state - Current state of the walk + * parent_node - The parent of the new Node + * Node - The new Node to install + * Type - ACPI object type of the new Node + * + * RETURN: None + * + * DESCRIPTION: Initialize a new namespace node and install it amongst + * its peers. + * + * Note: Current namespace lookup is linear search. This appears + * to be sufficient as namespace searches consume only a small + * fraction of the execution time of the ACPI subsystem. + * + ******************************************************************************/ + +void acpi_ns_install_node(struct acpi_walk_state *walk_state, struct acpi_namespace_node *parent_node, /* Parent */ + struct acpi_namespace_node *node, /* New Child */ + acpi_object_type type) +{ + acpi_owner_id owner_id = 0; + struct acpi_namespace_node *child_node; + + ACPI_FUNCTION_TRACE(ns_install_node); + + /* + * Get the owner ID from the Walk state + * The owner ID is used to track table deletion and + * deletion of objects created by methods + */ + if (walk_state) { + owner_id = walk_state->owner_id; + } + + /* Link the new entry into the parent and existing children */ + + child_node = parent_node->child; + if (!child_node) { + parent_node->child = node; + node->flags |= ANOBJ_END_OF_PEER_LIST; + node->peer = parent_node; + } else { + while (!(child_node->flags & ANOBJ_END_OF_PEER_LIST)) { + child_node = child_node->peer; + } + + child_node->peer = node; + + /* Clear end-of-list flag */ + + child_node->flags &= ~ANOBJ_END_OF_PEER_LIST; + node->flags |= ANOBJ_END_OF_PEER_LIST; + node->peer = parent_node; + } + + /* Init the new entry */ + + node->owner_id = owner_id; + node->type = (u8) type; + + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, + "%4.4s (%s) [Node %p Owner %X] added to %4.4s (%s) [Node %p]\n", + acpi_ut_get_node_name(node), + acpi_ut_get_type_name(node->type), node, owner_id, + acpi_ut_get_node_name(parent_node), + acpi_ut_get_type_name(parent_node->type), + parent_node)); + + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_delete_children + * + * PARAMETERS: parent_node - Delete this objects children + * + * RETURN: None. + * + * DESCRIPTION: Delete all children of the parent object. In other words, + * deletes a "scope". + * + ******************************************************************************/ + +void acpi_ns_delete_children(struct acpi_namespace_node *parent_node) +{ + struct acpi_namespace_node *child_node; + struct acpi_namespace_node *next_node; + u8 flags; + + ACPI_FUNCTION_TRACE_PTR(ns_delete_children, parent_node); + + if (!parent_node) { + return_VOID; + } + + /* If no children, all done! */ + + child_node = parent_node->child; + if (!child_node) { + return_VOID; + } + + /* + * Deallocate all children at this level + */ + do { + + /* Get the things we need */ + + next_node = child_node->peer; + flags = child_node->flags; + + /* Grandchildren should have all been deleted already */ + + if (child_node->child) { + ACPI_ERROR((AE_INFO, "Found a grandchild! P=%p C=%p", + parent_node, child_node)); + } + + /* Now we can free this child object */ + + ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_freed++); + + ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, + "Object %p, Remaining %X\n", child_node, + acpi_gbl_current_node_count)); + + /* + * Detach an object if there is one, then free the child node + */ + acpi_ns_detach_object(child_node); + + /* Now we can delete the node */ + + (void)acpi_os_release_object(acpi_gbl_namespace_cache, + child_node); + + /* And move on to the next child in the list */ + + child_node = next_node; + + } while (!(flags & ANOBJ_END_OF_PEER_LIST)); + + /* Clear the parent's child pointer */ + + parent_node->child = NULL; + + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_delete_namespace_subtree + * + * PARAMETERS: parent_node - Root of the subtree to be deleted + * + * RETURN: None. + * + * DESCRIPTION: Delete a subtree of the namespace. This includes all objects + * stored within the subtree. + * + ******************************************************************************/ + +void acpi_ns_delete_namespace_subtree(struct acpi_namespace_node *parent_node) +{ + struct acpi_namespace_node *child_node = NULL; + u32 level = 1; + + ACPI_FUNCTION_TRACE(ns_delete_namespace_subtree); + + if (!parent_node) { + return_VOID; + } + + /* + * Traverse the tree of objects until we bubble back up + * to where we started. + */ + while (level > 0) { + + /* Get the next node in this scope (NULL if none) */ + + child_node = + acpi_ns_get_next_node(ACPI_TYPE_ANY, parent_node, + child_node); + if (child_node) { + + /* Found a child node - detach any attached object */ + + acpi_ns_detach_object(child_node); + + /* Check if this node has any children */ + + if (acpi_ns_get_next_node + (ACPI_TYPE_ANY, child_node, NULL)) { + /* + * There is at least one child of this node, + * visit the node + */ + level++; + parent_node = child_node; + child_node = NULL; + } + } else { + /* + * No more children of this parent node. + * Move up to the grandparent. + */ + level--; + + /* + * Now delete all of the children of this parent + * all at the same time. + */ + acpi_ns_delete_children(parent_node); + + /* New "last child" is this parent node */ + + child_node = parent_node; + + /* Move up the tree to the grandparent */ + + parent_node = acpi_ns_get_parent_node(parent_node); + } + } + + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_delete_namespace_by_owner + * + * PARAMETERS: owner_id - All nodes with this owner will be deleted + * + * RETURN: Status + * + * DESCRIPTION: Delete entries within the namespace that are owned by a + * specific ID. Used to delete entire ACPI tables. All + * reference counts are updated. + * + * MUTEX: Locks namespace during deletion walk. + * + ******************************************************************************/ + +void acpi_ns_delete_namespace_by_owner(acpi_owner_id owner_id) +{ + struct acpi_namespace_node *child_node; + struct acpi_namespace_node *deletion_node; + struct acpi_namespace_node *parent_node; + u32 level; + acpi_status status; + + ACPI_FUNCTION_TRACE_U32(ns_delete_namespace_by_owner, owner_id); + + if (owner_id == 0) { + return_VOID; + } + + /* Lock namespace for possible update */ + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return_VOID; + } + + deletion_node = NULL; + parent_node = acpi_gbl_root_node; + child_node = NULL; + level = 1; + + /* + * Traverse the tree of nodes until we bubble back up + * to where we started. + */ + while (level > 0) { + /* + * Get the next child of this parent node. When child_node is NULL, + * the first child of the parent is returned + */ + child_node = + acpi_ns_get_next_node(ACPI_TYPE_ANY, parent_node, + child_node); + + if (deletion_node) { + acpi_ns_delete_children(deletion_node); + acpi_ns_delete_node(deletion_node); + deletion_node = NULL; + } + + if (child_node) { + if (child_node->owner_id == owner_id) { + + /* Found a matching child node - detach any attached object */ + + acpi_ns_detach_object(child_node); + } + + /* Check if this node has any children */ + + if (acpi_ns_get_next_node + (ACPI_TYPE_ANY, child_node, NULL)) { + /* + * There is at least one child of this node, + * visit the node + */ + level++; + parent_node = child_node; + child_node = NULL; + } else if (child_node->owner_id == owner_id) { + deletion_node = child_node; + } + } else { + /* + * No more children of this parent node. + * Move up to the grandparent. + */ + level--; + if (level != 0) { + if (parent_node->owner_id == owner_id) { + deletion_node = parent_node; + } + } + + /* New "last child" is this parent node */ + + child_node = parent_node; + + /* Move up the tree to the grandparent */ + + parent_node = acpi_ns_get_parent_node(parent_node); + } + } + + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + return_VOID; +} diff --git a/drivers/acpi/acpica/nsdump.c b/drivers/acpi/acpica/nsdump.c new file mode 100644 index 000000000000..48f02e659f24 --- /dev/null +++ b/drivers/acpi/acpica/nsdump.c @@ -0,0 +1,709 @@ +/****************************************************************************** + * + * Module Name: nsdump - table dumping routines for debug + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_NAMESPACE +ACPI_MODULE_NAME("nsdump") + +/* Local prototypes */ +#ifdef ACPI_OBSOLETE_FUNCTIONS +void acpi_ns_dump_root_devices(void); + +static acpi_status +acpi_ns_dump_one_device(acpi_handle obj_handle, + u32 level, void *context, void **return_value); +#endif + +#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) +/******************************************************************************* + * + * FUNCTION: acpi_ns_print_pathname + * + * PARAMETERS: num_segments - Number of ACPI name segments + * Pathname - The compressed (internal) path + * + * RETURN: None + * + * DESCRIPTION: Print an object's full namespace pathname + * + ******************************************************************************/ + +void acpi_ns_print_pathname(u32 num_segments, char *pathname) +{ + u32 i; + + ACPI_FUNCTION_NAME(ns_print_pathname); + + if (!(acpi_dbg_level & ACPI_LV_NAMES) + || !(acpi_dbg_layer & ACPI_NAMESPACE)) { + return; + } + + /* Print the entire name */ + + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "[")); + + while (num_segments) { + for (i = 0; i < 4; i++) { + ACPI_IS_PRINT(pathname[i]) ? + acpi_os_printf("%c", pathname[i]) : + acpi_os_printf("?"); + } + + pathname += ACPI_NAME_SIZE; + num_segments--; + if (num_segments) { + acpi_os_printf("."); + } + } + + acpi_os_printf("]\n"); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_dump_pathname + * + * PARAMETERS: Handle - Object + * Msg - Prefix message + * Level - Desired debug level + * Component - Caller's component ID + * + * RETURN: None + * + * DESCRIPTION: Print an object's full namespace pathname + * Manages allocation/freeing of a pathname buffer + * + ******************************************************************************/ + +void +acpi_ns_dump_pathname(acpi_handle handle, char *msg, u32 level, u32 component) +{ + + ACPI_FUNCTION_TRACE(ns_dump_pathname); + + /* Do this only if the requested debug level and component are enabled */ + + if (!(acpi_dbg_level & level) || !(acpi_dbg_layer & component)) { + return_VOID; + } + + /* Convert handle to a full pathname and print it (with supplied message) */ + + acpi_ns_print_node_pathname(handle, msg); + acpi_os_printf("\n"); + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_dump_one_object + * + * PARAMETERS: obj_handle - Node to be dumped + * Level - Nesting level of the handle + * Context - Passed into walk_namespace + * return_value - Not used + * + * RETURN: Status + * + * DESCRIPTION: Dump a single Node + * This procedure is a user_function called by acpi_ns_walk_namespace. + * + ******************************************************************************/ + +acpi_status +acpi_ns_dump_one_object(acpi_handle obj_handle, + u32 level, void *context, void **return_value) +{ + struct acpi_walk_info *info = (struct acpi_walk_info *)context; + struct acpi_namespace_node *this_node; + union acpi_operand_object *obj_desc = NULL; + acpi_object_type obj_type; + acpi_object_type type; + u32 bytes_to_dump; + u32 dbg_level; + u32 i; + + ACPI_FUNCTION_NAME(ns_dump_one_object); + + /* Is output enabled? */ + + if (!(acpi_dbg_level & info->debug_level)) { + return (AE_OK); + } + + if (!obj_handle) { + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Null object handle\n")); + return (AE_OK); + } + + this_node = acpi_ns_map_handle_to_node(obj_handle); + type = this_node->type; + + /* Check if the owner matches */ + + if ((info->owner_id != ACPI_OWNER_ID_MAX) && + (info->owner_id != this_node->owner_id)) { + return (AE_OK); + } + + if (!(info->display_type & ACPI_DISPLAY_SHORT)) { + + /* Indent the object according to the level */ + + acpi_os_printf("%2d%*s", (u32) level - 1, (int)level * 2, " "); + + /* Check the node type and name */ + + if (type > ACPI_TYPE_LOCAL_MAX) { + ACPI_WARNING((AE_INFO, "Invalid ACPI Object Type %08X", + type)); + } + + if (!acpi_ut_valid_acpi_name(this_node->name.integer)) { + this_node->name.integer = + acpi_ut_repair_name(this_node->name.ascii); + + ACPI_WARNING((AE_INFO, "Invalid ACPI Name %08X", + this_node->name.integer)); + } + + acpi_os_printf("%4.4s", acpi_ut_get_node_name(this_node)); + } + + /* + * Now we can print out the pertinent information + */ + acpi_os_printf(" %-12s %p %2.2X ", + acpi_ut_get_type_name(type), this_node, + this_node->owner_id); + + dbg_level = acpi_dbg_level; + acpi_dbg_level = 0; + obj_desc = acpi_ns_get_attached_object(this_node); + acpi_dbg_level = dbg_level; + + /* Temp nodes are those nodes created by a control method */ + + if (this_node->flags & ANOBJ_TEMPORARY) { + acpi_os_printf("(T) "); + } + + switch (info->display_type & ACPI_DISPLAY_MASK) { + case ACPI_DISPLAY_SUMMARY: + + if (!obj_desc) { + + /* No attached object, we are done */ + + acpi_os_printf("\n"); + return (AE_OK); + } + + switch (type) { + case ACPI_TYPE_PROCESSOR: + + acpi_os_printf("ID %X Len %.4X Addr %p\n", + obj_desc->processor.proc_id, + obj_desc->processor.length, + ACPI_CAST_PTR(void, + obj_desc->processor. + address)); + break; + + case ACPI_TYPE_DEVICE: + + acpi_os_printf("Notify Object: %p\n", obj_desc); + break; + + case ACPI_TYPE_METHOD: + + acpi_os_printf("Args %X Len %.4X Aml %p\n", + (u32) obj_desc->method.param_count, + obj_desc->method.aml_length, + obj_desc->method.aml_start); + break; + + case ACPI_TYPE_INTEGER: + + acpi_os_printf("= %8.8X%8.8X\n", + ACPI_FORMAT_UINT64(obj_desc->integer. + value)); + break; + + case ACPI_TYPE_PACKAGE: + + if (obj_desc->common.flags & AOPOBJ_DATA_VALID) { + acpi_os_printf("Elements %.2X\n", + obj_desc->package.count); + } else { + acpi_os_printf("[Length not yet evaluated]\n"); + } + break; + + case ACPI_TYPE_BUFFER: + + if (obj_desc->common.flags & AOPOBJ_DATA_VALID) { + acpi_os_printf("Len %.2X", + obj_desc->buffer.length); + + /* Dump some of the buffer */ + + if (obj_desc->buffer.length > 0) { + acpi_os_printf(" ="); + for (i = 0; + (i < obj_desc->buffer.length + && i < 12); i++) { + acpi_os_printf(" %.2hX", + obj_desc->buffer. + pointer[i]); + } + } + acpi_os_printf("\n"); + } else { + acpi_os_printf("[Length not yet evaluated]\n"); + } + break; + + case ACPI_TYPE_STRING: + + acpi_os_printf("Len %.2X ", obj_desc->string.length); + acpi_ut_print_string(obj_desc->string.pointer, 32); + acpi_os_printf("\n"); + break; + + case ACPI_TYPE_REGION: + + acpi_os_printf("[%s]", + acpi_ut_get_region_name(obj_desc->region. + space_id)); + if (obj_desc->region.flags & AOPOBJ_DATA_VALID) { + acpi_os_printf(" Addr %8.8X%8.8X Len %.4X\n", + ACPI_FORMAT_NATIVE_UINT + (obj_desc->region.address), + obj_desc->region.length); + } else { + acpi_os_printf + (" [Address/Length not yet evaluated]\n"); + } + break; + + case ACPI_TYPE_LOCAL_REFERENCE: + + acpi_os_printf("[%s]\n", + acpi_ut_get_reference_name(obj_desc)); + break; + + case ACPI_TYPE_BUFFER_FIELD: + + if (obj_desc->buffer_field.buffer_obj && + obj_desc->buffer_field.buffer_obj->buffer.node) { + acpi_os_printf("Buf [%4.4s]", + acpi_ut_get_node_name(obj_desc-> + buffer_field. + buffer_obj-> + buffer. + node)); + } + break; + + case ACPI_TYPE_LOCAL_REGION_FIELD: + + acpi_os_printf("Rgn [%4.4s]", + acpi_ut_get_node_name(obj_desc-> + common_field. + region_obj->region. + node)); + break; + + case ACPI_TYPE_LOCAL_BANK_FIELD: + + acpi_os_printf("Rgn [%4.4s] Bnk [%4.4s]", + acpi_ut_get_node_name(obj_desc-> + common_field. + region_obj->region. + node), + acpi_ut_get_node_name(obj_desc-> + bank_field. + bank_obj-> + common_field. + node)); + break; + + case ACPI_TYPE_LOCAL_INDEX_FIELD: + + acpi_os_printf("Idx [%4.4s] Dat [%4.4s]", + acpi_ut_get_node_name(obj_desc-> + index_field. + index_obj-> + common_field.node), + acpi_ut_get_node_name(obj_desc-> + index_field. + data_obj-> + common_field. + node)); + break; + + case ACPI_TYPE_LOCAL_ALIAS: + case ACPI_TYPE_LOCAL_METHOD_ALIAS: + + acpi_os_printf("Target %4.4s (%p)\n", + acpi_ut_get_node_name(obj_desc), + obj_desc); + break; + + default: + + acpi_os_printf("Object %p\n", obj_desc); + break; + } + + /* Common field handling */ + + switch (type) { + case ACPI_TYPE_BUFFER_FIELD: + case ACPI_TYPE_LOCAL_REGION_FIELD: + case ACPI_TYPE_LOCAL_BANK_FIELD: + case ACPI_TYPE_LOCAL_INDEX_FIELD: + + acpi_os_printf(" Off %.3X Len %.2X Acc %.2hd\n", + (obj_desc->common_field. + base_byte_offset * 8) + + + obj_desc->common_field. + start_field_bit_offset, + obj_desc->common_field.bit_length, + obj_desc->common_field. + access_byte_width); + break; + + default: + break; + } + break; + + case ACPI_DISPLAY_OBJECTS: + + acpi_os_printf("O:%p", obj_desc); + if (!obj_desc) { + + /* No attached object, we are done */ + + acpi_os_printf("\n"); + return (AE_OK); + } + + acpi_os_printf("(R%d)", obj_desc->common.reference_count); + + switch (type) { + case ACPI_TYPE_METHOD: + + /* Name is a Method and its AML offset/length are set */ + + acpi_os_printf(" M:%p-%X\n", obj_desc->method.aml_start, + obj_desc->method.aml_length); + break; + + case ACPI_TYPE_INTEGER: + + acpi_os_printf(" I:%8.8X8.8%X\n", + ACPI_FORMAT_UINT64(obj_desc->integer. + value)); + break; + + case ACPI_TYPE_STRING: + + acpi_os_printf(" S:%p-%X\n", obj_desc->string.pointer, + obj_desc->string.length); + break; + + case ACPI_TYPE_BUFFER: + + acpi_os_printf(" B:%p-%X\n", obj_desc->buffer.pointer, + obj_desc->buffer.length); + break; + + default: + + acpi_os_printf("\n"); + break; + } + break; + + default: + acpi_os_printf("\n"); + break; + } + + /* If debug turned off, done */ + + if (!(acpi_dbg_level & ACPI_LV_VALUES)) { + return (AE_OK); + } + + /* If there is an attached object, display it */ + + dbg_level = acpi_dbg_level; + acpi_dbg_level = 0; + obj_desc = acpi_ns_get_attached_object(this_node); + acpi_dbg_level = dbg_level; + + /* Dump attached objects */ + + while (obj_desc) { + obj_type = ACPI_TYPE_INVALID; + acpi_os_printf("Attached Object %p: ", obj_desc); + + /* Decode the type of attached object and dump the contents */ + + switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) { + case ACPI_DESC_TYPE_NAMED: + + acpi_os_printf("(Ptr to Node)\n"); + bytes_to_dump = sizeof(struct acpi_namespace_node); + ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump); + break; + + case ACPI_DESC_TYPE_OPERAND: + + obj_type = ACPI_GET_OBJECT_TYPE(obj_desc); + + if (obj_type > ACPI_TYPE_LOCAL_MAX) { + acpi_os_printf + ("(Pointer to ACPI Object type %.2X [UNKNOWN])\n", + obj_type); + bytes_to_dump = 32; + } else { + acpi_os_printf + ("(Pointer to ACPI Object type %.2X [%s])\n", + obj_type, acpi_ut_get_type_name(obj_type)); + bytes_to_dump = + sizeof(union acpi_operand_object); + } + + ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump); + break; + + default: + + break; + } + + /* If value is NOT an internal object, we are done */ + + if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != + ACPI_DESC_TYPE_OPERAND) { + goto cleanup; + } + + /* + * Valid object, get the pointer to next level, if any + */ + switch (obj_type) { + case ACPI_TYPE_BUFFER: + case ACPI_TYPE_STRING: + /* + * NOTE: takes advantage of common fields between string/buffer + */ + bytes_to_dump = obj_desc->string.length; + obj_desc = (void *)obj_desc->string.pointer; + acpi_os_printf("(Buffer/String pointer %p length %X)\n", + obj_desc, bytes_to_dump); + ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump); + goto cleanup; + + case ACPI_TYPE_BUFFER_FIELD: + obj_desc = + (union acpi_operand_object *)obj_desc->buffer_field. + buffer_obj; + break; + + case ACPI_TYPE_PACKAGE: + obj_desc = (void *)obj_desc->package.elements; + break; + + case ACPI_TYPE_METHOD: + obj_desc = (void *)obj_desc->method.aml_start; + break; + + case ACPI_TYPE_LOCAL_REGION_FIELD: + obj_desc = (void *)obj_desc->field.region_obj; + break; + + case ACPI_TYPE_LOCAL_BANK_FIELD: + obj_desc = (void *)obj_desc->bank_field.region_obj; + break; + + case ACPI_TYPE_LOCAL_INDEX_FIELD: + obj_desc = (void *)obj_desc->index_field.index_obj; + break; + + default: + goto cleanup; + } + + obj_type = ACPI_TYPE_INVALID; /* Terminate loop after next pass */ + } + + cleanup: + acpi_os_printf("\n"); + return (AE_OK); +} + +#ifdef ACPI_FUTURE_USAGE +/******************************************************************************* + * + * FUNCTION: acpi_ns_dump_objects + * + * PARAMETERS: Type - Object type to be dumped + * display_type - 0 or ACPI_DISPLAY_SUMMARY + * max_depth - Maximum depth of dump. Use ACPI_UINT32_MAX + * for an effectively unlimited depth. + * owner_id - Dump only objects owned by this ID. Use + * ACPI_UINT32_MAX to match all owners. + * start_handle - Where in namespace to start/end search + * + * RETURN: None + * + * DESCRIPTION: Dump typed objects within the loaded namespace. + * Uses acpi_ns_walk_namespace in conjunction with acpi_ns_dump_one_object. + * + ******************************************************************************/ + +void +acpi_ns_dump_objects(acpi_object_type type, + u8 display_type, + u32 max_depth, + acpi_owner_id owner_id, acpi_handle start_handle) +{ + struct acpi_walk_info info; + + ACPI_FUNCTION_ENTRY(); + + info.debug_level = ACPI_LV_TABLES; + info.owner_id = owner_id; + info.display_type = display_type; + + (void)acpi_ns_walk_namespace(type, start_handle, max_depth, + ACPI_NS_WALK_NO_UNLOCK | + ACPI_NS_WALK_TEMP_NODES, + acpi_ns_dump_one_object, (void *)&info, + NULL); +} +#endif /* ACPI_FUTURE_USAGE */ + +/******************************************************************************* + * + * FUNCTION: acpi_ns_dump_entry + * + * PARAMETERS: Handle - Node to be dumped + * debug_level - Output level + * + * RETURN: None + * + * DESCRIPTION: Dump a single Node + * + ******************************************************************************/ + +void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level) +{ + struct acpi_walk_info info; + + ACPI_FUNCTION_ENTRY(); + + info.debug_level = debug_level; + info.owner_id = ACPI_OWNER_ID_MAX; + info.display_type = ACPI_DISPLAY_SUMMARY; + + (void)acpi_ns_dump_one_object(handle, 1, &info, NULL); +} + +#ifdef ACPI_ASL_COMPILER +/******************************************************************************* + * + * FUNCTION: acpi_ns_dump_tables + * + * PARAMETERS: search_base - Root of subtree to be dumped, or + * NS_ALL to dump the entire namespace + * max_depth - Maximum depth of dump. Use INT_MAX + * for an effectively unlimited depth. + * + * RETURN: None + * + * DESCRIPTION: Dump the name space, or a portion of it. + * + ******************************************************************************/ + +void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth) +{ + acpi_handle search_handle = search_base; + + ACPI_FUNCTION_TRACE(ns_dump_tables); + + if (!acpi_gbl_root_node) { + /* + * If the name space has not been initialized, + * there is nothing to dump. + */ + ACPI_DEBUG_PRINT((ACPI_DB_TABLES, + "namespace not initialized!\n")); + return_VOID; + } + + if (ACPI_NS_ALL == search_base) { + + /* Entire namespace */ + + search_handle = acpi_gbl_root_node; + ACPI_DEBUG_PRINT((ACPI_DB_TABLES, "\\\n")); + } + + acpi_ns_dump_objects(ACPI_TYPE_ANY, ACPI_DISPLAY_OBJECTS, max_depth, + ACPI_OWNER_ID_MAX, search_handle); + return_VOID; +} +#endif /* _ACPI_ASL_COMPILER */ +#endif /* defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) */ diff --git a/drivers/acpi/acpica/nsdumpdv.c b/drivers/acpi/acpica/nsdumpdv.c new file mode 100644 index 000000000000..cc3df78258ed --- /dev/null +++ b/drivers/acpi/acpica/nsdumpdv.c @@ -0,0 +1,141 @@ +/****************************************************************************** + * + * Module Name: nsdump - table dumping routines for debug + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include + +/* TBD: This entire module is apparently obsolete and should be removed */ + +#define _COMPONENT ACPI_NAMESPACE +ACPI_MODULE_NAME("nsdumpdv") +#ifdef ACPI_OBSOLETE_FUNCTIONS +#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) +#include +/******************************************************************************* + * + * FUNCTION: acpi_ns_dump_one_device + * + * PARAMETERS: Handle - Node to be dumped + * Level - Nesting level of the handle + * Context - Passed into walk_namespace + * return_value - Not used + * + * RETURN: Status + * + * DESCRIPTION: Dump a single Node that represents a device + * This procedure is a user_function called by acpi_ns_walk_namespace. + * + ******************************************************************************/ +static acpi_status +acpi_ns_dump_one_device(acpi_handle obj_handle, + u32 level, void *context, void **return_value) +{ + struct acpi_buffer buffer; + struct acpi_device_info *info; + acpi_status status; + u32 i; + + ACPI_FUNCTION_NAME(ns_dump_one_device); + + status = + acpi_ns_dump_one_object(obj_handle, level, context, return_value); + + buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; + status = acpi_get_object_info(obj_handle, &buffer); + if (ACPI_SUCCESS(status)) { + info = buffer.pointer; + for (i = 0; i < level; i++) { + ACPI_DEBUG_PRINT_RAW((ACPI_DB_TABLES, " ")); + } + + ACPI_DEBUG_PRINT_RAW((ACPI_DB_TABLES, + " HID: %s, ADR: %8.8X%8.8X, Status: %X\n", + info->hardware_id.value, + ACPI_FORMAT_UINT64(info->address), + info->current_status)); + ACPI_FREE(info); + } + + return (status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_dump_root_devices + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Dump all objects of type "device" + * + ******************************************************************************/ + +void acpi_ns_dump_root_devices(void) +{ + acpi_handle sys_bus_handle; + acpi_status status; + + ACPI_FUNCTION_NAME(ns_dump_root_devices); + + /* Only dump the table if tracing is enabled */ + + if (!(ACPI_LV_TABLES & acpi_dbg_level)) { + return; + } + + status = acpi_get_handle(NULL, ACPI_NS_SYSTEM_BUS, &sys_bus_handle); + if (ACPI_FAILURE(status)) { + return; + } + + ACPI_DEBUG_PRINT((ACPI_DB_TABLES, + "Display of all devices in the namespace:\n")); + + status = acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, sys_bus_handle, + ACPI_UINT32_MAX, ACPI_NS_WALK_NO_UNLOCK, + acpi_ns_dump_one_device, NULL, NULL); +} + +#endif +#endif diff --git a/drivers/acpi/acpica/nseval.c b/drivers/acpi/acpica/nseval.c new file mode 100644 index 000000000000..a8d7764c73b7 --- /dev/null +++ b/drivers/acpi/acpica/nseval.c @@ -0,0 +1,278 @@ +/******************************************************************************* + * + * Module Name: nseval - Object evaluation, includes control method execution + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_NAMESPACE +ACPI_MODULE_NAME("nseval") + +/******************************************************************************* + * + * FUNCTION: acpi_ns_evaluate + * + * PARAMETERS: Info - Evaluation info block, contains: + * prefix_node - Prefix or Method/Object Node to execute + * Pathname - Name of method to execute, If NULL, the + * Node is the object to execute + * Parameters - List of parameters to pass to the method, + * terminated by NULL. Params itself may be + * NULL if no parameters are being passed. + * return_object - Where to put method's return value (if + * any). If NULL, no value is returned. + * parameter_type - Type of Parameter list + * return_object - Where to put method's return value (if + * any). If NULL, no value is returned. + * Flags - ACPI_IGNORE_RETURN_VALUE to delete return + * + * RETURN: Status + * + * DESCRIPTION: Execute a control method or return the current value of an + * ACPI namespace object. + * + * MUTEX: Locks interpreter + * + ******************************************************************************/ +acpi_status acpi_ns_evaluate(struct acpi_evaluate_info * info) +{ + acpi_status status; + struct acpi_namespace_node *node; + + ACPI_FUNCTION_TRACE(ns_evaluate); + + if (!info) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* Initialize the return value to an invalid object */ + + info->return_object = NULL; + info->param_count = 0; + + /* + * Get the actual namespace node for the target object. Handles these cases: + * + * 1) Null node, Pathname (absolute path) + * 2) Node, Pathname (path relative to Node) + * 3) Node, Null Pathname + */ + status = acpi_ns_get_node(info->prefix_node, info->pathname, + ACPI_NS_NO_UPSEARCH, &info->resolved_node); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * For a method alias, we must grab the actual method node so that proper + * scoping context will be established before execution. + */ + if (acpi_ns_get_type(info->resolved_node) == + ACPI_TYPE_LOCAL_METHOD_ALIAS) { + info->resolved_node = + ACPI_CAST_PTR(struct acpi_namespace_node, + info->resolved_node->object); + } + + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "%s [%p] Value %p\n", info->pathname, + info->resolved_node, + acpi_ns_get_attached_object(info->resolved_node))); + + node = info->resolved_node; + + /* + * Two major cases here: + * + * 1) The object is a control method -- execute it + * 2) The object is not a method -- just return it's current value + */ + if (acpi_ns_get_type(info->resolved_node) == ACPI_TYPE_METHOD) { + /* + * 1) Object is a control method - execute it + */ + + /* Verify that there is a method object associated with this node */ + + info->obj_desc = + acpi_ns_get_attached_object(info->resolved_node); + if (!info->obj_desc) { + ACPI_ERROR((AE_INFO, + "Control method has no attached sub-object")); + return_ACPI_STATUS(AE_NULL_OBJECT); + } + + /* Count the number of arguments being passed to the method */ + + if (info->parameters) { + while (info->parameters[info->param_count]) { + if (info->param_count > ACPI_METHOD_MAX_ARG) { + return_ACPI_STATUS(AE_LIMIT); + } + info->param_count++; + } + } + + + ACPI_DUMP_PATHNAME(info->resolved_node, "Execute Method:", + ACPI_LV_INFO, _COMPONENT); + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Method at AML address %p Length %X\n", + info->obj_desc->method.aml_start + 1, + info->obj_desc->method.aml_length - 1)); + + /* + * Any namespace deletion must acquire both the namespace and + * interpreter locks to ensure that no thread is using the portion of + * the namespace that is being deleted. + * + * Execute the method via the interpreter. The interpreter is locked + * here before calling into the AML parser + */ + acpi_ex_enter_interpreter(); + status = acpi_ps_execute_method(info); + acpi_ex_exit_interpreter(); + } else { + /* + * 2) Object is not a method, return its current value + * + * Disallow certain object types. For these, "evaluation" is undefined. + */ + switch (info->resolved_node->type) { + case ACPI_TYPE_DEVICE: + case ACPI_TYPE_EVENT: + case ACPI_TYPE_MUTEX: + case ACPI_TYPE_REGION: + case ACPI_TYPE_THERMAL: + case ACPI_TYPE_LOCAL_SCOPE: + + ACPI_ERROR((AE_INFO, + "[%4.4s] Evaluation of object type [%s] is not supported", + info->resolved_node->name.ascii, + acpi_ut_get_type_name(info->resolved_node-> + type))); + + return_ACPI_STATUS(AE_TYPE); + + default: + break; + } + + /* + * Objects require additional resolution steps (e.g., the Node may be + * a field that must be read, etc.) -- we can't just grab the object + * out of the node. + * + * Use resolve_node_to_value() to get the associated value. + * + * NOTE: we can get away with passing in NULL for a walk state because + * resolved_node is guaranteed to not be a reference to either a method + * local or a method argument (because this interface is never called + * from a running method.) + * + * Even though we do not directly invoke the interpreter for object + * resolution, we must lock it because we could access an opregion. + * The opregion access code assumes that the interpreter is locked. + */ + acpi_ex_enter_interpreter(); + + /* Function has a strange interface */ + + status = + acpi_ex_resolve_node_to_value(&info->resolved_node, NULL); + acpi_ex_exit_interpreter(); + + /* + * If acpi_ex_resolve_node_to_value() succeeded, the return value was placed + * in resolved_node. + */ + if (ACPI_SUCCESS(status)) { + status = AE_CTRL_RETURN_VALUE; + info->return_object = + ACPI_CAST_PTR(union acpi_operand_object, + info->resolved_node); + + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, + "Returning object %p [%s]\n", + info->return_object, + acpi_ut_get_object_type_name(info-> + return_object))); + } + } + + /* + * Check input argument count against the ASL-defined count for a method. + * Also check predefined names: argument count and return value against + * the ACPI specification. Some incorrect return value types are repaired. + */ + (void)acpi_ns_check_predefined_names(node, info->param_count, + status, &info->return_object); + + /* Check if there is a return value that must be dealt with */ + + if (status == AE_CTRL_RETURN_VALUE) { + + /* If caller does not want the return value, delete it */ + + if (info->flags & ACPI_IGNORE_RETURN_VALUE) { + acpi_ut_remove_reference(info->return_object); + info->return_object = NULL; + } + + /* Map AE_CTRL_RETURN_VALUE to AE_OK, we are done with it */ + + status = AE_OK; + } + + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, + "*** Completed evaluation of object %s ***\n", + info->pathname)); + + /* + * Namespace was unlocked by the handling acpi_ns* function, so we + * just return + */ + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/nsinit.c b/drivers/acpi/acpica/nsinit.c new file mode 100644 index 000000000000..fe470c4b38f7 --- /dev/null +++ b/drivers/acpi/acpica/nsinit.c @@ -0,0 +1,593 @@ +/****************************************************************************** + * + * Module Name: nsinit - namespace initialization + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_NAMESPACE +ACPI_MODULE_NAME("nsinit") + +/* Local prototypes */ +static acpi_status +acpi_ns_init_one_object(acpi_handle obj_handle, + u32 level, void *context, void **return_value); + +static acpi_status +acpi_ns_init_one_device(acpi_handle obj_handle, + u32 nesting_level, void *context, void **return_value); + +static acpi_status +acpi_ns_find_ini_methods(acpi_handle obj_handle, + u32 nesting_level, void *context, void **return_value); + +/******************************************************************************* + * + * FUNCTION: acpi_ns_initialize_objects + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Walk the entire namespace and perform any necessary + * initialization on the objects found therein + * + ******************************************************************************/ + +acpi_status acpi_ns_initialize_objects(void) +{ + acpi_status status; + struct acpi_init_walk_info info; + + ACPI_FUNCTION_TRACE(ns_initialize_objects); + + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "**** Starting initialization of namespace objects ****\n")); + ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, + "Completing Region/Field/Buffer/Package initialization:")); + + /* Set all init info to zero */ + + ACPI_MEMSET(&info, 0, sizeof(struct acpi_init_walk_info)); + + /* Walk entire namespace from the supplied root */ + + status = acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, + ACPI_UINT32_MAX, acpi_ns_init_one_object, + &info, NULL); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, "During WalkNamespace")); + } + + ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, + "\nInitialized %hd/%hd Regions %hd/%hd Fields %hd/%hd Buffers %hd/%hd Packages (%hd nodes)\n", + info.op_region_init, info.op_region_count, + info.field_init, info.field_count, + info.buffer_init, info.buffer_count, + info.package_init, info.package_count, + info.object_count)); + + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "%hd Control Methods found\n", info.method_count)); + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "%hd Op Regions found\n", info.op_region_count)); + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_initialize_devices + * + * PARAMETERS: None + * + * RETURN: acpi_status + * + * DESCRIPTION: Walk the entire namespace and initialize all ACPI devices. + * This means running _INI on all present devices. + * + * Note: We install PCI config space handler on region access, + * not here. + * + ******************************************************************************/ + +acpi_status acpi_ns_initialize_devices(void) +{ + acpi_status status; + struct acpi_device_walk_info info; + + ACPI_FUNCTION_TRACE(ns_initialize_devices); + + /* Init counters */ + + info.device_count = 0; + info.num_STA = 0; + info.num_INI = 0; + + ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, + "Initializing Device/Processor/Thermal objects by executing _INI methods:")); + + /* Tree analysis: find all subtrees that contain _INI methods */ + + status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, + ACPI_UINT32_MAX, FALSE, + acpi_ns_find_ini_methods, &info, NULL); + if (ACPI_FAILURE(status)) { + goto error_exit; + } + + /* Allocate the evaluation information block */ + + info.evaluate_info = + ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info)); + if (!info.evaluate_info) { + status = AE_NO_MEMORY; + goto error_exit; + } + + /* Walk namespace to execute all _INIs on present devices */ + + status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, + ACPI_UINT32_MAX, FALSE, + acpi_ns_init_one_device, &info, NULL); + + ACPI_FREE(info.evaluate_info); + if (ACPI_FAILURE(status)) { + goto error_exit; + } + + ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, + "\nExecuted %hd _INI methods requiring %hd _STA executions (examined %hd objects)\n", + info.num_INI, info.num_STA, info.device_count)); + + return_ACPI_STATUS(status); + + error_exit: + ACPI_EXCEPTION((AE_INFO, status, "During device initialization")); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_init_one_object + * + * PARAMETERS: obj_handle - Node + * Level - Current nesting level + * Context - Points to a init info struct + * return_value - Not used + * + * RETURN: Status + * + * DESCRIPTION: Callback from acpi_walk_namespace. Invoked for every object + * within the namespace. + * + * Currently, the only objects that require initialization are: + * 1) Methods + * 2) Op Regions + * + ******************************************************************************/ + +static acpi_status +acpi_ns_init_one_object(acpi_handle obj_handle, + u32 level, void *context, void **return_value) +{ + acpi_object_type type; + acpi_status status = AE_OK; + struct acpi_init_walk_info *info = + (struct acpi_init_walk_info *)context; + struct acpi_namespace_node *node = + (struct acpi_namespace_node *)obj_handle; + union acpi_operand_object *obj_desc; + + ACPI_FUNCTION_NAME(ns_init_one_object); + + info->object_count++; + + /* And even then, we are only interested in a few object types */ + + type = acpi_ns_get_type(obj_handle); + obj_desc = acpi_ns_get_attached_object(node); + if (!obj_desc) { + return (AE_OK); + } + + /* Increment counters for object types we are looking for */ + + switch (type) { + case ACPI_TYPE_REGION: + info->op_region_count++; + break; + + case ACPI_TYPE_BUFFER_FIELD: + info->field_count++; + break; + + case ACPI_TYPE_LOCAL_BANK_FIELD: + info->field_count++; + break; + + case ACPI_TYPE_BUFFER: + info->buffer_count++; + break; + + case ACPI_TYPE_PACKAGE: + info->package_count++; + break; + + default: + + /* No init required, just exit now */ + return (AE_OK); + } + + /* + * If the object is already initialized, nothing else to do + */ + if (obj_desc->common.flags & AOPOBJ_DATA_VALID) { + return (AE_OK); + } + + /* + * Must lock the interpreter before executing AML code + */ + acpi_ex_enter_interpreter(); + + /* + * Each of these types can contain executable AML code within the + * declaration. + */ + switch (type) { + case ACPI_TYPE_REGION: + + info->op_region_init++; + status = acpi_ds_get_region_arguments(obj_desc); + break; + + case ACPI_TYPE_BUFFER_FIELD: + + info->field_init++; + status = acpi_ds_get_buffer_field_arguments(obj_desc); + break; + + case ACPI_TYPE_LOCAL_BANK_FIELD: + + info->field_init++; + status = acpi_ds_get_bank_field_arguments(obj_desc); + break; + + case ACPI_TYPE_BUFFER: + + info->buffer_init++; + status = acpi_ds_get_buffer_arguments(obj_desc); + break; + + case ACPI_TYPE_PACKAGE: + + info->package_init++; + status = acpi_ds_get_package_arguments(obj_desc); + break; + + default: + /* No other types can get here */ + break; + } + + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Could not execute arguments for [%4.4s] (%s)", + acpi_ut_get_node_name(node), + acpi_ut_get_type_name(type))); + } + + /* + * Print a dot for each object unless we are going to print the entire + * pathname + */ + if (!(acpi_dbg_level & ACPI_LV_INIT_NAMES)) { + ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, ".")); + } + + /* + * We ignore errors from above, and always return OK, since we don't want + * to abort the walk on any single error. + */ + acpi_ex_exit_interpreter(); + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_find_ini_methods + * + * PARAMETERS: acpi_walk_callback + * + * RETURN: acpi_status + * + * DESCRIPTION: Called during namespace walk. Finds objects named _INI under + * device/processor/thermal objects, and marks the entire subtree + * with a SUBTREE_HAS_INI flag. This flag is used during the + * subsequent device initialization walk to avoid entire subtrees + * that do not contain an _INI. + * + ******************************************************************************/ + +static acpi_status +acpi_ns_find_ini_methods(acpi_handle obj_handle, + u32 nesting_level, void *context, void **return_value) +{ + struct acpi_device_walk_info *info = + ACPI_CAST_PTR(struct acpi_device_walk_info, context); + struct acpi_namespace_node *node; + struct acpi_namespace_node *parent_node; + + /* Keep count of device/processor/thermal objects */ + + node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle); + if ((node->type == ACPI_TYPE_DEVICE) || + (node->type == ACPI_TYPE_PROCESSOR) || + (node->type == ACPI_TYPE_THERMAL)) { + info->device_count++; + return (AE_OK); + } + + /* We are only looking for methods named _INI */ + + if (!ACPI_COMPARE_NAME(node->name.ascii, METHOD_NAME__INI)) { + return (AE_OK); + } + + /* + * The only _INI methods that we care about are those that are + * present under Device, Processor, and Thermal objects. + */ + parent_node = acpi_ns_get_parent_node(node); + switch (parent_node->type) { + case ACPI_TYPE_DEVICE: + case ACPI_TYPE_PROCESSOR: + case ACPI_TYPE_THERMAL: + + /* Mark parent and bubble up the INI present flag to the root */ + + while (parent_node) { + parent_node->flags |= ANOBJ_SUBTREE_HAS_INI; + parent_node = acpi_ns_get_parent_node(parent_node); + } + break; + + default: + break; + } + + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_init_one_device + * + * PARAMETERS: acpi_walk_callback + * + * RETURN: acpi_status + * + * DESCRIPTION: This is called once per device soon after ACPI is enabled + * to initialize each device. It determines if the device is + * present, and if so, calls _INI. + * + ******************************************************************************/ + +static acpi_status +acpi_ns_init_one_device(acpi_handle obj_handle, + u32 nesting_level, void *context, void **return_value) +{ + struct acpi_device_walk_info *walk_info = + ACPI_CAST_PTR(struct acpi_device_walk_info, context); + struct acpi_evaluate_info *info = walk_info->evaluate_info; + u32 flags; + acpi_status status; + struct acpi_namespace_node *device_node; + + ACPI_FUNCTION_TRACE(ns_init_one_device); + + /* We are interested in Devices, Processors and thermal_zones only */ + + device_node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle); + if ((device_node->type != ACPI_TYPE_DEVICE) && + (device_node->type != ACPI_TYPE_PROCESSOR) && + (device_node->type != ACPI_TYPE_THERMAL)) { + return_ACPI_STATUS(AE_OK); + } + + /* + * Because of an earlier namespace analysis, all subtrees that contain an + * _INI method are tagged. + * + * If this device subtree does not contain any _INI methods, we + * can exit now and stop traversing this entire subtree. + */ + if (!(device_node->flags & ANOBJ_SUBTREE_HAS_INI)) { + return_ACPI_STATUS(AE_CTRL_DEPTH); + } + + /* + * Run _STA to determine if this device is present and functioning. We + * must know this information for two important reasons (from ACPI spec): + * + * 1) We can only run _INI if the device is present. + * 2) We must abort the device tree walk on this subtree if the device is + * not present and is not functional (we will not examine the children) + * + * The _STA method is not required to be present under the device, we + * assume the device is present if _STA does not exist. + */ + ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname + (ACPI_TYPE_METHOD, device_node, METHOD_NAME__STA)); + + status = acpi_ut_execute_STA(device_node, &flags); + if (ACPI_FAILURE(status)) { + + /* Ignore error and move on to next device */ + + return_ACPI_STATUS(AE_OK); + } + + /* + * Flags == -1 means that _STA was not found. In this case, we assume that + * the device is both present and functional. + * + * From the ACPI spec, description of _STA: + * + * "If a device object (including the processor object) does not have an + * _STA object, then OSPM assumes that all of the above bits are set (in + * other words, the device is present, ..., and functioning)" + */ + if (flags != ACPI_UINT32_MAX) { + walk_info->num_STA++; + } + + /* + * Examine the PRESENT and FUNCTIONING status bits + * + * Note: ACPI spec does not seem to specify behavior for the present but + * not functioning case, so we assume functioning if present. + */ + if (!(flags & ACPI_STA_DEVICE_PRESENT)) { + + /* Device is not present, we must examine the Functioning bit */ + + if (flags & ACPI_STA_DEVICE_FUNCTIONING) { + /* + * Device is not present but is "functioning". In this case, + * we will not run _INI, but we continue to examine the children + * of this device. + * + * From the ACPI spec, description of _STA: (Note - no mention + * of whether to run _INI or not on the device in question) + * + * "_STA may return bit 0 clear (not present) with bit 3 set + * (device is functional). This case is used to indicate a valid + * device for which no device driver should be loaded (for example, + * a bridge device.) Children of this device may be present and + * valid. OSPM should continue enumeration below a device whose + * _STA returns this bit combination" + */ + return_ACPI_STATUS(AE_OK); + } else { + /* + * Device is not present and is not functioning. We must abort the + * walk of this subtree immediately -- don't look at the children + * of such a device. + * + * From the ACPI spec, description of _INI: + * + * "If the _STA method indicates that the device is not present, + * OSPM will not run the _INI and will not examine the children + * of the device for _INI methods" + */ + return_ACPI_STATUS(AE_CTRL_DEPTH); + } + } + + /* + * The device is present or is assumed present if no _STA exists. + * Run the _INI if it exists (not required to exist) + * + * Note: We know there is an _INI within this subtree, but it may not be + * under this particular device, it may be lower in the branch. + */ + ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname + (ACPI_TYPE_METHOD, device_node, METHOD_NAME__INI)); + + info->prefix_node = device_node; + info->pathname = METHOD_NAME__INI; + info->parameters = NULL; + info->flags = ACPI_IGNORE_RETURN_VALUE; + + /* + * Some hardware relies on this being executed as atomically + * as possible (without an NMI being received in the middle of + * this) - so disable NMIs and initialize the device: + */ + acpi_nmi_disable(); + status = acpi_ns_evaluate(info); + acpi_nmi_enable(); + + if (ACPI_SUCCESS(status)) { + walk_info->num_INI++; + + if ((acpi_dbg_level <= ACPI_LV_ALL_EXCEPTIONS) && + (!(acpi_dbg_level & ACPI_LV_INFO))) { + ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, ".")); + } + } +#ifdef ACPI_DEBUG_OUTPUT + else if (status != AE_NOT_FOUND) { + + /* Ignore error and move on to next device */ + + char *scope_name = + acpi_ns_get_external_pathname(info->resolved_node); + + ACPI_EXCEPTION((AE_INFO, status, "during %s._INI execution", + scope_name)); + ACPI_FREE(scope_name); + } +#endif + + /* Ignore errors from above */ + + status = AE_OK; + + /* + * The _INI method has been run if present; call the Global Initialization + * Handler for this device. + */ + if (acpi_gbl_init_handler) { + status = + acpi_gbl_init_handler(device_node, ACPI_INIT_DEVICE_INI); + } + + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/nsload.c b/drivers/acpi/acpica/nsload.c new file mode 100644 index 000000000000..a6e92b31a06f --- /dev/null +++ b/drivers/acpi/acpica/nsload.c @@ -0,0 +1,315 @@ +/****************************************************************************** + * + * Module Name: nsload - namespace loading/expanding/contracting procedures + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_NAMESPACE +ACPI_MODULE_NAME("nsload") + +/* Local prototypes */ +#ifdef ACPI_FUTURE_IMPLEMENTATION +acpi_status acpi_ns_unload_namespace(acpi_handle handle); + +static acpi_status acpi_ns_delete_subtree(acpi_handle start_handle); +#endif + +#ifndef ACPI_NO_METHOD_EXECUTION +/******************************************************************************* + * + * FUNCTION: acpi_ns_load_table + * + * PARAMETERS: table_index - Index for table to be loaded + * Node - Owning NS node + * + * RETURN: Status + * + * DESCRIPTION: Load one ACPI table into the namespace + * + ******************************************************************************/ + +acpi_status +acpi_ns_load_table(u32 table_index, struct acpi_namespace_node *node) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(ns_load_table); + + /* + * Parse the table and load the namespace with all named + * objects found within. Control methods are NOT parsed + * at this time. In fact, the control methods cannot be + * parsed until the entire namespace is loaded, because + * if a control method makes a forward reference (call) + * to another control method, we can't continue parsing + * because we don't know how many arguments to parse next! + */ + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* If table already loaded into namespace, just return */ + + if (acpi_tb_is_table_loaded(table_index)) { + status = AE_ALREADY_EXISTS; + goto unlock; + } + + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "**** Loading table into namespace ****\n")); + + status = acpi_tb_allocate_owner_id(table_index); + if (ACPI_FAILURE(status)) { + goto unlock; + } + + status = acpi_ns_parse_table(table_index, node); + if (ACPI_SUCCESS(status)) { + acpi_tb_set_table_loaded_flag(table_index, TRUE); + } else { + (void)acpi_tb_release_owner_id(table_index); + } + + unlock: + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * Now we can parse the control methods. We always parse + * them here for a sanity check, and if configured for + * just-in-time parsing, we delete the control method + * parse trees. + */ + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "**** Begin Table Method Parsing and Object Initialization ****\n")); + + status = acpi_ds_initialize_objects(table_index, node); + + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "**** Completed Table Method Parsing and Object Initialization ****\n")); + + return_ACPI_STATUS(status); +} + +#ifdef ACPI_OBSOLETE_FUNCTIONS +/******************************************************************************* + * + * FUNCTION: acpi_load_namespace + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Load the name space from what ever is pointed to by DSDT. + * (DSDT points to either the BIOS or a buffer.) + * + ******************************************************************************/ + +acpi_status acpi_ns_load_namespace(void) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_load_name_space); + + /* There must be at least a DSDT installed */ + + if (acpi_gbl_DSDT == NULL) { + ACPI_ERROR((AE_INFO, "DSDT is not in memory")); + return_ACPI_STATUS(AE_NO_ACPI_TABLES); + } + + /* + * Load the namespace. The DSDT is required, + * but the SSDT and PSDT tables are optional. + */ + status = acpi_ns_load_table_by_type(ACPI_TABLE_ID_DSDT); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Ignore exceptions from these */ + + (void)acpi_ns_load_table_by_type(ACPI_TABLE_ID_SSDT); + (void)acpi_ns_load_table_by_type(ACPI_TABLE_ID_PSDT); + + ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, + "ACPI Namespace successfully loaded at root %p\n", + acpi_gbl_root_node)); + + return_ACPI_STATUS(status); +} +#endif + +#ifdef ACPI_FUTURE_IMPLEMENTATION +/******************************************************************************* + * + * FUNCTION: acpi_ns_delete_subtree + * + * PARAMETERS: start_handle - Handle in namespace where search begins + * + * RETURNS Status + * + * DESCRIPTION: Walks the namespace starting at the given handle and deletes + * all objects, entries, and scopes in the entire subtree. + * + * Namespace/Interpreter should be locked or the subsystem should + * be in shutdown before this routine is called. + * + ******************************************************************************/ + +static acpi_status acpi_ns_delete_subtree(acpi_handle start_handle) +{ + acpi_status status; + acpi_handle child_handle; + acpi_handle parent_handle; + acpi_handle next_child_handle; + acpi_handle dummy; + u32 level; + + ACPI_FUNCTION_TRACE(ns_delete_subtree); + + parent_handle = start_handle; + child_handle = NULL; + level = 1; + + /* + * Traverse the tree of objects until we bubble back up + * to where we started. + */ + while (level > 0) { + + /* Attempt to get the next object in this scope */ + + status = acpi_get_next_object(ACPI_TYPE_ANY, parent_handle, + child_handle, &next_child_handle); + + child_handle = next_child_handle; + + /* Did we get a new object? */ + + if (ACPI_SUCCESS(status)) { + + /* Check if this object has any children */ + + if (ACPI_SUCCESS + (acpi_get_next_object + (ACPI_TYPE_ANY, child_handle, NULL, &dummy))) { + /* + * There is at least one child of this object, + * visit the object + */ + level++; + parent_handle = child_handle; + child_handle = NULL; + } + } else { + /* + * No more children in this object, go back up to + * the object's parent + */ + level--; + + /* Delete all children now */ + + acpi_ns_delete_children(child_handle); + + child_handle = parent_handle; + status = acpi_get_parent(parent_handle, &parent_handle); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + } + + /* Now delete the starting object, and we are done */ + + acpi_ns_delete_node(child_handle); + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_unload_name_space + * + * PARAMETERS: Handle - Root of namespace subtree to be deleted + * + * RETURN: Status + * + * DESCRIPTION: Shrinks the namespace, typically in response to an undocking + * event. Deletes an entire subtree starting from (and + * including) the given handle. + * + ******************************************************************************/ + +acpi_status acpi_ns_unload_namespace(acpi_handle handle) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(ns_unload_name_space); + + /* Parameter validation */ + + if (!acpi_gbl_root_node) { + return_ACPI_STATUS(AE_NO_NAMESPACE); + } + + if (!handle) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* This function does the real work */ + + status = acpi_ns_delete_subtree(handle); + + return_ACPI_STATUS(status); +} +#endif +#endif diff --git a/drivers/acpi/acpica/nsnames.c b/drivers/acpi/acpica/nsnames.c new file mode 100644 index 000000000000..b7e301848ba7 --- /dev/null +++ b/drivers/acpi/acpica/nsnames.c @@ -0,0 +1,265 @@ +/******************************************************************************* + * + * Module Name: nsnames - Name manipulation and search + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include + +#define _COMPONENT ACPI_NAMESPACE +ACPI_MODULE_NAME("nsnames") + +/******************************************************************************* + * + * FUNCTION: acpi_ns_build_external_path + * + * PARAMETERS: Node - NS node whose pathname is needed + * Size - Size of the pathname + * *name_buffer - Where to return the pathname + * + * RETURN: Status + * Places the pathname into the name_buffer, in external format + * (name segments separated by path separators) + * + * DESCRIPTION: Generate a full pathaname + * + ******************************************************************************/ +acpi_status +acpi_ns_build_external_path(struct acpi_namespace_node *node, + acpi_size size, char *name_buffer) +{ + acpi_size index; + struct acpi_namespace_node *parent_node; + + ACPI_FUNCTION_ENTRY(); + + /* Special case for root */ + + index = size - 1; + if (index < ACPI_NAME_SIZE) { + name_buffer[0] = AML_ROOT_PREFIX; + name_buffer[1] = 0; + return (AE_OK); + } + + /* Store terminator byte, then build name backwards */ + + parent_node = node; + name_buffer[index] = 0; + + while ((index > ACPI_NAME_SIZE) && (parent_node != acpi_gbl_root_node)) { + index -= ACPI_NAME_SIZE; + + /* Put the name into the buffer */ + + ACPI_MOVE_32_TO_32((name_buffer + index), &parent_node->name); + parent_node = acpi_ns_get_parent_node(parent_node); + + /* Prefix name with the path separator */ + + index--; + name_buffer[index] = ACPI_PATH_SEPARATOR; + } + + /* Overwrite final separator with the root prefix character */ + + name_buffer[index] = AML_ROOT_PREFIX; + + if (index != 0) { + ACPI_ERROR((AE_INFO, + "Could not construct external pathname; index=%X, size=%X, Path=%s", + (u32) index, (u32) size, &name_buffer[size])); + + return (AE_BAD_PARAMETER); + } + + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_get_external_pathname + * + * PARAMETERS: Node - Namespace node whose pathname is needed + * + * RETURN: Pointer to storage containing the fully qualified name of + * the node, In external format (name segments separated by path + * separators.) + * + * DESCRIPTION: Used for debug printing in acpi_ns_search_table(). + * + ******************************************************************************/ + +char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node) +{ + acpi_status status; + char *name_buffer; + acpi_size size; + + ACPI_FUNCTION_TRACE_PTR(ns_get_external_pathname, node); + + /* Calculate required buffer size based on depth below root */ + + size = acpi_ns_get_pathname_length(node); + if (!size) { + return_PTR(NULL); + } + + /* Allocate a buffer to be returned to caller */ + + name_buffer = ACPI_ALLOCATE_ZEROED(size); + if (!name_buffer) { + ACPI_ERROR((AE_INFO, "Allocation failure")); + return_PTR(NULL); + } + + /* Build the path in the allocated buffer */ + + status = acpi_ns_build_external_path(node, size, name_buffer); + if (ACPI_FAILURE(status)) { + ACPI_FREE(name_buffer); + return_PTR(NULL); + } + + return_PTR(name_buffer); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_get_pathname_length + * + * PARAMETERS: Node - Namespace node + * + * RETURN: Length of path, including prefix + * + * DESCRIPTION: Get the length of the pathname string for this node + * + ******************************************************************************/ + +acpi_size acpi_ns_get_pathname_length(struct acpi_namespace_node *node) +{ + acpi_size size; + struct acpi_namespace_node *next_node; + + ACPI_FUNCTION_ENTRY(); + + /* + * Compute length of pathname as 5 * number of name segments. + * Go back up the parent tree to the root + */ + size = 0; + next_node = node; + + while (next_node && (next_node != acpi_gbl_root_node)) { + if (ACPI_GET_DESCRIPTOR_TYPE(next_node) != ACPI_DESC_TYPE_NAMED) { + ACPI_ERROR((AE_INFO, + "Invalid Namespace Node (%p) while traversing namespace", + next_node)); + return 0; + } + size += ACPI_PATH_SEGMENT_LENGTH; + next_node = acpi_ns_get_parent_node(next_node); + } + + if (!size) { + size = 1; /* Root node case */ + } + + return (size + 1); /* +1 for null string terminator */ +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_handle_to_pathname + * + * PARAMETERS: target_handle - Handle of named object whose name is + * to be found + * Buffer - Where the pathname is returned + * + * RETURN: Status, Buffer is filled with pathname if status is AE_OK + * + * DESCRIPTION: Build and return a full namespace pathname + * + ******************************************************************************/ + +acpi_status +acpi_ns_handle_to_pathname(acpi_handle target_handle, + struct acpi_buffer * buffer) +{ + acpi_status status; + struct acpi_namespace_node *node; + acpi_size required_size; + + ACPI_FUNCTION_TRACE_PTR(ns_handle_to_pathname, target_handle); + + node = acpi_ns_map_handle_to_node(target_handle); + if (!node) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* Determine size required for the caller buffer */ + + required_size = acpi_ns_get_pathname_length(node); + if (!required_size) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* Validate/Allocate/Clear caller buffer */ + + status = acpi_ut_initialize_buffer(buffer, required_size); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Build the path in the caller buffer */ + + status = + acpi_ns_build_external_path(node, required_size, buffer->pointer); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%s [%X]\n", + (char *)buffer->pointer, (u32) required_size)); + return_ACPI_STATUS(AE_OK); +} diff --git a/drivers/acpi/acpica/nsobject.c b/drivers/acpi/acpica/nsobject.c new file mode 100644 index 000000000000..ca9edeea27df --- /dev/null +++ b/drivers/acpi/acpica/nsobject.c @@ -0,0 +1,441 @@ +/******************************************************************************* + * + * Module Name: nsobject - Utilities for objects attached to namespace + * table entries + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_NAMESPACE +ACPI_MODULE_NAME("nsobject") + +/******************************************************************************* + * + * FUNCTION: acpi_ns_attach_object + * + * PARAMETERS: Node - Parent Node + * Object - Object to be attached + * Type - Type of object, or ACPI_TYPE_ANY if not + * known + * + * RETURN: Status + * + * DESCRIPTION: Record the given object as the value associated with the + * name whose acpi_handle is passed. If Object is NULL + * and Type is ACPI_TYPE_ANY, set the name as having no value. + * Note: Future may require that the Node->Flags field be passed + * as a parameter. + * + * MUTEX: Assumes namespace is locked + * + ******************************************************************************/ +acpi_status +acpi_ns_attach_object(struct acpi_namespace_node *node, + union acpi_operand_object *object, acpi_object_type type) +{ + union acpi_operand_object *obj_desc; + union acpi_operand_object *last_obj_desc; + acpi_object_type object_type = ACPI_TYPE_ANY; + + ACPI_FUNCTION_TRACE(ns_attach_object); + + /* + * Parameter validation + */ + if (!node) { + + /* Invalid handle */ + + ACPI_ERROR((AE_INFO, "Null NamedObj handle")); + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + if (!object && (ACPI_TYPE_ANY != type)) { + + /* Null object */ + + ACPI_ERROR((AE_INFO, + "Null object, but type not ACPI_TYPE_ANY")); + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) { + + /* Not a name handle */ + + ACPI_ERROR((AE_INFO, "Invalid handle %p [%s]", + node, acpi_ut_get_descriptor_name(node))); + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* Check if this object is already attached */ + + if (node->object == object) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Obj %p already installed in NameObj %p\n", + object, node)); + + return_ACPI_STATUS(AE_OK); + } + + /* If null object, we will just install it */ + + if (!object) { + obj_desc = NULL; + object_type = ACPI_TYPE_ANY; + } + + /* + * If the source object is a namespace Node with an attached object, + * we will use that (attached) object + */ + else if ((ACPI_GET_DESCRIPTOR_TYPE(object) == ACPI_DESC_TYPE_NAMED) && + ((struct acpi_namespace_node *)object)->object) { + /* + * Value passed is a name handle and that name has a + * non-null value. Use that name's value and type. + */ + obj_desc = ((struct acpi_namespace_node *)object)->object; + object_type = ((struct acpi_namespace_node *)object)->type; + } + + /* + * Otherwise, we will use the parameter object, but we must type + * it first + */ + else { + obj_desc = (union acpi_operand_object *)object; + + /* Use the given type */ + + object_type = type; + } + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Installing %p into Node %p [%4.4s]\n", + obj_desc, node, acpi_ut_get_node_name(node))); + + /* Detach an existing attached object if present */ + + if (node->object) { + acpi_ns_detach_object(node); + } + + if (obj_desc) { + /* + * Must increment the new value's reference count + * (if it is an internal object) + */ + acpi_ut_add_reference(obj_desc); + + /* + * Handle objects with multiple descriptors - walk + * to the end of the descriptor list + */ + last_obj_desc = obj_desc; + while (last_obj_desc->common.next_object) { + last_obj_desc = last_obj_desc->common.next_object; + } + + /* Install the object at the front of the object list */ + + last_obj_desc->common.next_object = node->object; + } + + node->type = (u8) object_type; + node->object = obj_desc; + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_detach_object + * + * PARAMETERS: Node - A Namespace node whose object will be detached + * + * RETURN: None. + * + * DESCRIPTION: Detach/delete an object associated with a namespace node. + * if the object is an allocated object, it is freed. + * Otherwise, the field is simply cleared. + * + ******************************************************************************/ + +void acpi_ns_detach_object(struct acpi_namespace_node *node) +{ + union acpi_operand_object *obj_desc; + + ACPI_FUNCTION_TRACE(ns_detach_object); + + obj_desc = node->object; + + if (!obj_desc || + (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA)) { + return_VOID; + } + + /* Clear the entry in all cases */ + + node->object = NULL; + if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == ACPI_DESC_TYPE_OPERAND) { + node->object = obj_desc->common.next_object; + if (node->object && + (ACPI_GET_OBJECT_TYPE(node->object) != + ACPI_TYPE_LOCAL_DATA)) { + node->object = node->object->common.next_object; + } + } + + /* Reset the node type to untyped */ + + node->type = ACPI_TYPE_ANY; + + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "Node %p [%4.4s] Object %p\n", + node, acpi_ut_get_node_name(node), obj_desc)); + + /* Remove one reference on the object (and all subobjects) */ + + acpi_ut_remove_reference(obj_desc); + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_get_attached_object + * + * PARAMETERS: Node - Namespace node + * + * RETURN: Current value of the object field from the Node whose + * handle is passed + * + * DESCRIPTION: Obtain the object attached to a namespace node. + * + ******************************************************************************/ + +union acpi_operand_object *acpi_ns_get_attached_object(struct + acpi_namespace_node + *node) +{ + ACPI_FUNCTION_TRACE_PTR(ns_get_attached_object, node); + + if (!node) { + ACPI_WARNING((AE_INFO, "Null Node ptr")); + return_PTR(NULL); + } + + if (!node->object || + ((ACPI_GET_DESCRIPTOR_TYPE(node->object) != ACPI_DESC_TYPE_OPERAND) + && (ACPI_GET_DESCRIPTOR_TYPE(node->object) != + ACPI_DESC_TYPE_NAMED)) + || (ACPI_GET_OBJECT_TYPE(node->object) == ACPI_TYPE_LOCAL_DATA)) { + return_PTR(NULL); + } + + return_PTR(node->object); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_get_secondary_object + * + * PARAMETERS: Node - Namespace node + * + * RETURN: Current value of the object field from the Node whose + * handle is passed. + * + * DESCRIPTION: Obtain a secondary object associated with a namespace node. + * + ******************************************************************************/ + +union acpi_operand_object *acpi_ns_get_secondary_object(union + acpi_operand_object + *obj_desc) +{ + ACPI_FUNCTION_TRACE_PTR(ns_get_secondary_object, obj_desc); + + if ((!obj_desc) || + (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) || + (!obj_desc->common.next_object) || + (ACPI_GET_OBJECT_TYPE(obj_desc->common.next_object) == + ACPI_TYPE_LOCAL_DATA)) { + return_PTR(NULL); + } + + return_PTR(obj_desc->common.next_object); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_attach_data + * + * PARAMETERS: Node - Namespace node + * Handler - Handler to be associated with the data + * Data - Data to be attached + * + * RETURN: Status + * + * DESCRIPTION: Low-level attach data. Create and attach a Data object. + * + ******************************************************************************/ + +acpi_status +acpi_ns_attach_data(struct acpi_namespace_node *node, + acpi_object_handler handler, void *data) +{ + union acpi_operand_object *prev_obj_desc; + union acpi_operand_object *obj_desc; + union acpi_operand_object *data_desc; + + /* We only allow one attachment per handler */ + + prev_obj_desc = NULL; + obj_desc = node->object; + while (obj_desc) { + if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) && + (obj_desc->data.handler == handler)) { + return (AE_ALREADY_EXISTS); + } + + prev_obj_desc = obj_desc; + obj_desc = obj_desc->common.next_object; + } + + /* Create an internal object for the data */ + + data_desc = acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_DATA); + if (!data_desc) { + return (AE_NO_MEMORY); + } + + data_desc->data.handler = handler; + data_desc->data.pointer = data; + + /* Install the data object */ + + if (prev_obj_desc) { + prev_obj_desc->common.next_object = data_desc; + } else { + node->object = data_desc; + } + + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_detach_data + * + * PARAMETERS: Node - Namespace node + * Handler - Handler associated with the data + * + * RETURN: Status + * + * DESCRIPTION: Low-level detach data. Delete the data node, but the caller + * is responsible for the actual data. + * + ******************************************************************************/ + +acpi_status +acpi_ns_detach_data(struct acpi_namespace_node * node, + acpi_object_handler handler) +{ + union acpi_operand_object *obj_desc; + union acpi_operand_object *prev_obj_desc; + + prev_obj_desc = NULL; + obj_desc = node->object; + while (obj_desc) { + if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) && + (obj_desc->data.handler == handler)) { + if (prev_obj_desc) { + prev_obj_desc->common.next_object = + obj_desc->common.next_object; + } else { + node->object = obj_desc->common.next_object; + } + + acpi_ut_remove_reference(obj_desc); + return (AE_OK); + } + + prev_obj_desc = obj_desc; + obj_desc = obj_desc->common.next_object; + } + + return (AE_NOT_FOUND); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_get_attached_data + * + * PARAMETERS: Node - Namespace node + * Handler - Handler associated with the data + * Data - Where the data is returned + * + * RETURN: Status + * + * DESCRIPTION: Low level interface to obtain data previously associated with + * a namespace node. + * + ******************************************************************************/ + +acpi_status +acpi_ns_get_attached_data(struct acpi_namespace_node * node, + acpi_object_handler handler, void **data) +{ + union acpi_operand_object *obj_desc; + + obj_desc = node->object; + while (obj_desc) { + if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) && + (obj_desc->data.handler == handler)) { + *data = obj_desc->data.pointer; + return (AE_OK); + } + + obj_desc = obj_desc->common.next_object; + } + + return (AE_NOT_FOUND); +} diff --git a/drivers/acpi/acpica/nsparse.c b/drivers/acpi/acpica/nsparse.c new file mode 100644 index 000000000000..bcfcf427c909 --- /dev/null +++ b/drivers/acpi/acpica/nsparse.c @@ -0,0 +1,204 @@ +/****************************************************************************** + * + * Module Name: nsparse - namespace interface to AML parser + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_NAMESPACE +ACPI_MODULE_NAME("nsparse") + +/******************************************************************************* + * + * FUNCTION: ns_one_complete_parse + * + * PARAMETERS: pass_number - 1 or 2 + * table_desc - The table to be parsed. + * + * RETURN: Status + * + * DESCRIPTION: Perform one complete parse of an ACPI/AML table. + * + ******************************************************************************/ +acpi_status +acpi_ns_one_complete_parse(u32 pass_number, + u32 table_index, + struct acpi_namespace_node *start_node) +{ + union acpi_parse_object *parse_root; + acpi_status status; + u32 aml_length; + u8 *aml_start; + struct acpi_walk_state *walk_state; + struct acpi_table_header *table; + acpi_owner_id owner_id; + + ACPI_FUNCTION_TRACE(ns_one_complete_parse); + + status = acpi_tb_get_owner_id(table_index, &owner_id); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Create and init a Root Node */ + + parse_root = acpi_ps_create_scope_op(); + if (!parse_root) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* Create and initialize a new walk state */ + + walk_state = acpi_ds_create_walk_state(owner_id, NULL, NULL, NULL); + if (!walk_state) { + acpi_ps_free_op(parse_root); + return_ACPI_STATUS(AE_NO_MEMORY); + } + + status = acpi_get_table_by_index(table_index, &table); + if (ACPI_FAILURE(status)) { + acpi_ds_delete_walk_state(walk_state); + acpi_ps_free_op(parse_root); + return_ACPI_STATUS(status); + } + + /* Table must consist of at least a complete header */ + + if (table->length < sizeof(struct acpi_table_header)) { + status = AE_BAD_HEADER; + } else { + aml_start = (u8 *) table + sizeof(struct acpi_table_header); + aml_length = table->length - sizeof(struct acpi_table_header); + status = acpi_ds_init_aml_walk(walk_state, parse_root, NULL, + aml_start, aml_length, NULL, + (u8) pass_number); + } + + if (ACPI_FAILURE(status)) { + acpi_ds_delete_walk_state(walk_state); + goto cleanup; + } + + /* start_node is the default location to load the table */ + + if (start_node && start_node != acpi_gbl_root_node) { + status = + acpi_ds_scope_stack_push(start_node, ACPI_TYPE_METHOD, + walk_state); + if (ACPI_FAILURE(status)) { + acpi_ds_delete_walk_state(walk_state); + goto cleanup; + } + } + + /* Parse the AML */ + + ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "*PARSE* pass %d parse\n", + (unsigned)pass_number)); + status = acpi_ps_parse_aml(walk_state); + + cleanup: + acpi_ps_delete_parse_tree(parse_root); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_parse_table + * + * PARAMETERS: table_desc - An ACPI table descriptor for table to parse + * start_node - Where to enter the table into the namespace + * + * RETURN: Status + * + * DESCRIPTION: Parse AML within an ACPI table and return a tree of ops + * + ******************************************************************************/ + +acpi_status +acpi_ns_parse_table(u32 table_index, struct acpi_namespace_node *start_node) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(ns_parse_table); + + /* + * AML Parse, pass 1 + * + * In this pass, we load most of the namespace. Control methods + * are not parsed until later. A parse tree is not created. Instead, + * each Parser Op subtree is deleted when it is finished. This saves + * a great deal of memory, and allows a small cache of parse objects + * to service the entire parse. The second pass of the parse then + * performs another complete parse of the AML. + */ + ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "**** Start pass 1\n")); + status = + acpi_ns_one_complete_parse(ACPI_IMODE_LOAD_PASS1, table_index, + start_node); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * AML Parse, pass 2 + * + * In this pass, we resolve forward references and other things + * that could not be completed during the first pass. + * Another complete parse of the AML is performed, but the + * overhead of this is compensated for by the fact that the + * parse objects are all cached. + */ + ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "**** Start pass 2\n")); + status = + acpi_ns_one_complete_parse(ACPI_IMODE_LOAD_PASS2, table_index, + start_node); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/nspredef.c b/drivers/acpi/acpica/nspredef.c new file mode 100644 index 000000000000..1e682d03f620 --- /dev/null +++ b/drivers/acpi/acpica/nspredef.c @@ -0,0 +1,1065 @@ +/****************************************************************************** + * + * Module Name: nspredef - Validation of ACPI predefined methods and objects + * $Revision: 1.1 $ + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include + +#define _COMPONENT ACPI_NAMESPACE +ACPI_MODULE_NAME("nspredef") + +/******************************************************************************* + * + * This module validates predefined ACPI objects that appear in the namespace, + * at the time they are evaluated (via acpi_evaluate_object). The purpose of this + * validation is to detect problems with BIOS-exposed predefined ACPI objects + * before the results are returned to the ACPI-related drivers. + * + * There are several areas that are validated: + * + * 1) The number of input arguments as defined by the method/object in the + * ASL is validated against the ACPI specification. + * 2) The type of the return object (if any) is validated against the ACPI + * specification. + * 3) For returned package objects, the count of package elements is + * validated, as well as the type of each package element. Nested + * packages are supported. + * + * For any problems found, a warning message is issued. + * + ******************************************************************************/ +/* Local prototypes */ +static acpi_status +acpi_ns_check_package(char *pathname, + union acpi_operand_object **return_object_ptr, + const union acpi_predefined_info *predefined); + +static acpi_status +acpi_ns_check_package_elements(char *pathname, + union acpi_operand_object **elements, + u8 type1, u32 count1, u8 type2, u32 count2); + +static acpi_status +acpi_ns_check_object_type(char *pathname, + union acpi_operand_object **return_object_ptr, + u32 expected_btypes, u32 package_index); + +static acpi_status +acpi_ns_check_reference(char *pathname, + union acpi_operand_object *return_object); + +static acpi_status +acpi_ns_repair_object(u32 expected_btypes, + u32 package_index, + union acpi_operand_object **return_object_ptr); + +/* + * Names for the types that can be returned by the predefined objects. + * Used for warning messages. Must be in the same order as the ACPI_RTYPEs + */ +static const char *acpi_rtype_names[] = { + "/Integer", + "/String", + "/Buffer", + "/Package", + "/Reference", +}; + +#define ACPI_NOT_PACKAGE ACPI_UINT32_MAX + +/******************************************************************************* + * + * FUNCTION: acpi_ns_check_predefined_names + * + * PARAMETERS: Node - Namespace node for the method/object + * return_object_ptr - Pointer to the object returned from the + * evaluation of a method or object + * + * RETURN: Status + * + * DESCRIPTION: Check an ACPI name for a match in the predefined name list. + * + ******************************************************************************/ + +acpi_status +acpi_ns_check_predefined_names(struct acpi_namespace_node *node, + u32 user_param_count, + acpi_status return_status, + union acpi_operand_object **return_object_ptr) +{ + union acpi_operand_object *return_object = *return_object_ptr; + acpi_status status = AE_OK; + const union acpi_predefined_info *predefined; + char *pathname; + + /* Match the name for this method/object against the predefined list */ + + predefined = acpi_ns_check_for_predefined_name(node); + + /* Get the full pathname to the object, for use in error messages */ + + pathname = acpi_ns_get_external_pathname(node); + if (!pathname) { + pathname = ACPI_CAST_PTR(char, predefined->info.name); + } + + /* + * Check that the parameter count for this method matches the ASL + * definition. For predefined names, ensure that both the caller and + * the method itself are in accordance with the ACPI specification. + */ + acpi_ns_check_parameter_count(pathname, node, user_param_count, + predefined); + + /* If not a predefined name, we cannot validate the return object */ + + if (!predefined) { + goto exit; + } + + /* If the method failed, we cannot validate the return object */ + + if ((return_status != AE_OK) && (return_status != AE_CTRL_RETURN_VALUE)) { + goto exit; + } + + /* + * Only validate the return value on the first successful evaluation of + * the method. This ensures that any warnings will only be emitted during + * the very first evaluation of the method/object. + */ + if (node->flags & ANOBJ_EVALUATED) { + goto exit; + } + + /* Mark the node as having been successfully evaluated */ + + node->flags |= ANOBJ_EVALUATED; + + /* + * If there is no return value, check if we require a return value for + * this predefined name. Either one return value is expected, or none, + * for both methods and other objects. + * + * Exit now if there is no return object. Warning if one was expected. + */ + if (!return_object) { + if ((predefined->info.expected_btypes) && + (!(predefined->info.expected_btypes & ACPI_RTYPE_NONE))) { + ACPI_ERROR((AE_INFO, + "%s: Missing expected return value", + pathname)); + + status = AE_AML_NO_RETURN_VALUE; + } + goto exit; + } + + /* + * We have a return value, but if one wasn't expected, just exit, this is + * not a problem + * + * For example, if the "Implicit Return" feature is enabled, methods will + * always return a value + */ + if (!predefined->info.expected_btypes) { + goto exit; + } + + /* + * Check that the type of the return object is what is expected for + * this predefined name + */ + status = acpi_ns_check_object_type(pathname, return_object_ptr, + predefined->info.expected_btypes, + ACPI_NOT_PACKAGE); + if (ACPI_FAILURE(status)) { + goto exit; + } + + /* For returned Package objects, check the type of all sub-objects */ + + if (ACPI_GET_OBJECT_TYPE(return_object) == ACPI_TYPE_PACKAGE) { + status = + acpi_ns_check_package(pathname, return_object_ptr, + predefined); + } + + exit: + if (pathname != predefined->info.name) { + ACPI_FREE(pathname); + } + + return (status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_check_parameter_count + * + * PARAMETERS: Pathname - Full pathname to the node (for error msgs) + * Node - Namespace node for the method/object + * user_param_count - Number of args passed in by the caller + * Predefined - Pointer to entry in predefined name table + * + * RETURN: None + * + * DESCRIPTION: Check that the declared (in ASL/AML) parameter count for a + * predefined name is what is expected (i.e., what is defined in + * the ACPI specification for this predefined name.) + * + ******************************************************************************/ + +void +acpi_ns_check_parameter_count(char *pathname, + struct acpi_namespace_node *node, + u32 user_param_count, + const union acpi_predefined_info *predefined) +{ + u32 param_count; + u32 required_params_current; + u32 required_params_old; + + /* Methods have 0-7 parameters. All other types have zero. */ + + param_count = 0; + if (node->type == ACPI_TYPE_METHOD) { + param_count = node->object->method.param_count; + } + + /* Argument count check for non-predefined methods/objects */ + + if (!predefined) { + /* + * Warning if too few or too many arguments have been passed by the + * caller. An incorrect number of arguments may not cause the method + * to fail. However, the method will fail if there are too few + * arguments and the method attempts to use one of the missing ones. + */ + if (user_param_count < param_count) { + ACPI_WARNING((AE_INFO, + "%s: Insufficient arguments - needs %d, found %d", + pathname, param_count, user_param_count)); + } else if (user_param_count > param_count) { + ACPI_WARNING((AE_INFO, + "%s: Excess arguments - needs %d, found %d", + pathname, param_count, user_param_count)); + } + return; + } + + /* Allow two different legal argument counts (_SCP, etc.) */ + + required_params_current = predefined->info.param_count & 0x0F; + required_params_old = predefined->info.param_count >> 4; + + if (user_param_count != ACPI_UINT32_MAX) { + + /* Validate the user-supplied parameter count */ + + if ((user_param_count != required_params_current) && + (user_param_count != required_params_old)) { + ACPI_WARNING((AE_INFO, + "%s: Parameter count mismatch - caller passed %d, ACPI requires %d", + pathname, user_param_count, + required_params_current)); + } + } + + /* + * Only validate the argument count on the first successful evaluation of + * the method. This ensures that any warnings will only be emitted during + * the very first evaluation of the method/object. + */ + if (node->flags & ANOBJ_EVALUATED) { + return; + } + + /* + * Check that the ASL-defined parameter count is what is expected for + * this predefined name. + */ + if ((param_count != required_params_current) && + (param_count != required_params_old)) { + ACPI_WARNING((AE_INFO, + "%s: Parameter count mismatch - ASL declared %d, ACPI requires %d", + pathname, param_count, required_params_current)); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_check_for_predefined_name + * + * PARAMETERS: Node - Namespace node for the method/object + * + * RETURN: Pointer to entry in predefined table. NULL indicates not found. + * + * DESCRIPTION: Check an object name against the predefined object list. + * + ******************************************************************************/ + +const union acpi_predefined_info *acpi_ns_check_for_predefined_name(struct + acpi_namespace_node + *node) +{ + const union acpi_predefined_info *this_name; + + /* Quick check for a predefined name, first character must be underscore */ + + if (node->name.ascii[0] != '_') { + return (NULL); + } + + /* Search info table for a predefined method/object name */ + + this_name = predefined_names; + while (this_name->info.name[0]) { + if (ACPI_COMPARE_NAME(node->name.ascii, this_name->info.name)) { + + /* Return pointer to this table entry */ + + return (this_name); + } + + /* + * Skip next entry in the table if this name returns a Package + * (next entry contains the package info) + */ + if (this_name->info.expected_btypes & ACPI_RTYPE_PACKAGE) { + this_name++; + } + + this_name++; + } + + return (NULL); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_check_package + * + * PARAMETERS: Pathname - Full pathname to the node (for error msgs) + * return_object_ptr - Pointer to the object returned from the + * evaluation of a method or object + * Predefined - Pointer to entry in predefined name table + * + * RETURN: Status + * + * DESCRIPTION: Check a returned package object for the correct count and + * correct type of all sub-objects. + * + ******************************************************************************/ + +static acpi_status +acpi_ns_check_package(char *pathname, + union acpi_operand_object **return_object_ptr, + const union acpi_predefined_info *predefined) +{ + union acpi_operand_object *return_object = *return_object_ptr; + const union acpi_predefined_info *package; + union acpi_operand_object *sub_package; + union acpi_operand_object **elements; + union acpi_operand_object **sub_elements; + acpi_status status; + u32 expected_count; + u32 count; + u32 i; + u32 j; + + ACPI_FUNCTION_NAME(ns_check_package); + + /* The package info for this name is in the next table entry */ + + package = predefined + 1; + + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, + "%s Validating return Package of Type %X, Count %X\n", + pathname, package->ret_info.type, + return_object->package.count)); + + /* Extract package count and elements array */ + + elements = return_object->package.elements; + count = return_object->package.count; + + /* The package must have at least one element, else invalid */ + + if (!count) { + ACPI_WARNING((AE_INFO, + "%s: Return Package has no elements (empty)", + pathname)); + + return (AE_AML_OPERAND_VALUE); + } + + /* + * Decode the type of the expected package contents + * + * PTYPE1 packages contain no subpackages + * PTYPE2 packages contain sub-packages + */ + switch (package->ret_info.type) { + case ACPI_PTYPE1_FIXED: + + /* + * The package count is fixed and there are no sub-packages + * + * If package is too small, exit. + * If package is larger than expected, issue warning but continue + */ + expected_count = + package->ret_info.count1 + package->ret_info.count2; + if (count < expected_count) { + goto package_too_small; + } else if (count > expected_count) { + ACPI_WARNING((AE_INFO, + "%s: Return Package is larger than needed - " + "found %u, expected %u", pathname, count, + expected_count)); + } + + /* Validate all elements of the returned package */ + + status = acpi_ns_check_package_elements(pathname, elements, + package->ret_info. + object_type1, + package->ret_info. + count1, + package->ret_info. + object_type2, + package->ret_info. + count2); + if (ACPI_FAILURE(status)) { + return (status); + } + break; + + case ACPI_PTYPE1_VAR: + + /* + * The package count is variable, there are no sub-packages, and all + * elements must be of the same type + */ + for (i = 0; i < count; i++) { + status = acpi_ns_check_object_type(pathname, elements, + package->ret_info. + object_type1, i); + if (ACPI_FAILURE(status)) { + return (status); + } + elements++; + } + break; + + case ACPI_PTYPE1_OPTION: + + /* + * The package count is variable, there are no sub-packages. There are + * a fixed number of required elements, and a variable number of + * optional elements. + * + * Check if package is at least as large as the minimum required + */ + expected_count = package->ret_info3.count; + if (count < expected_count) { + goto package_too_small; + } + + /* Variable number of sub-objects */ + + for (i = 0; i < count; i++) { + if (i < package->ret_info3.count) { + + /* These are the required package elements (0, 1, or 2) */ + + status = + acpi_ns_check_object_type(pathname, + elements, + package-> + ret_info3. + object_type[i], + i); + if (ACPI_FAILURE(status)) { + return (status); + } + } else { + /* These are the optional package elements */ + + status = + acpi_ns_check_object_type(pathname, + elements, + package-> + ret_info3. + tail_object_type, + i); + if (ACPI_FAILURE(status)) { + return (status); + } + } + elements++; + } + break; + + case ACPI_PTYPE2_PKG_COUNT: + + /* First element is the (Integer) count of sub-packages to follow */ + + status = acpi_ns_check_object_type(pathname, elements, + ACPI_RTYPE_INTEGER, 0); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* + * Count cannot be larger than the parent package length, but allow it + * to be smaller. The >= accounts for the Integer above. + */ + expected_count = (u32) (*elements)->integer.value; + if (expected_count >= count) { + goto package_too_small; + } + + count = expected_count; + elements++; + + /* Now we can walk the sub-packages */ + + /*lint -fallthrough */ + + case ACPI_PTYPE2: + case ACPI_PTYPE2_FIXED: + case ACPI_PTYPE2_MIN: + case ACPI_PTYPE2_COUNT: + + /* + * These types all return a single package that consists of a variable + * number of sub-packages + */ + for (i = 0; i < count; i++) { + sub_package = *elements; + sub_elements = sub_package->package.elements; + + /* Each sub-object must be of type Package */ + + status = + acpi_ns_check_object_type(pathname, &sub_package, + ACPI_RTYPE_PACKAGE, i); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* Examine the different types of sub-packages */ + + switch (package->ret_info.type) { + case ACPI_PTYPE2: + case ACPI_PTYPE2_PKG_COUNT: + + /* Each subpackage has a fixed number of elements */ + + expected_count = + package->ret_info.count1 + + package->ret_info.count2; + if (sub_package->package.count != + expected_count) { + count = sub_package->package.count; + goto package_too_small; + } + + status = + acpi_ns_check_package_elements(pathname, + sub_elements, + package-> + ret_info. + object_type1, + package-> + ret_info. + count1, + package-> + ret_info. + object_type2, + package-> + ret_info. + count2); + if (ACPI_FAILURE(status)) { + return (status); + } + break; + + case ACPI_PTYPE2_FIXED: + + /* Each sub-package has a fixed length */ + + expected_count = package->ret_info2.count; + if (sub_package->package.count < expected_count) { + count = sub_package->package.count; + goto package_too_small; + } + + /* Check the type of each sub-package element */ + + for (j = 0; j < expected_count; j++) { + status = + acpi_ns_check_object_type(pathname, + &sub_elements[j], + package->ret_info2.object_type[j], j); + if (ACPI_FAILURE(status)) { + return (status); + } + } + break; + + case ACPI_PTYPE2_MIN: + + /* Each sub-package has a variable but minimum length */ + + expected_count = package->ret_info.count1; + if (sub_package->package.count < expected_count) { + count = sub_package->package.count; + goto package_too_small; + } + + /* Check the type of each sub-package element */ + + status = + acpi_ns_check_package_elements(pathname, + sub_elements, + package-> + ret_info. + object_type1, + sub_package-> + package. + count, 0, 0); + if (ACPI_FAILURE(status)) { + return (status); + } + break; + + case ACPI_PTYPE2_COUNT: + + /* First element is the (Integer) count of elements to follow */ + + status = + acpi_ns_check_object_type(pathname, + sub_elements, + ACPI_RTYPE_INTEGER, + 0); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* Make sure package is large enough for the Count */ + + expected_count = + (u32) (*sub_elements)->integer.value; + if (sub_package->package.count < expected_count) { + count = sub_package->package.count; + goto package_too_small; + } + + /* Check the type of each sub-package element */ + + status = + acpi_ns_check_package_elements(pathname, + (sub_elements + + 1), + package-> + ret_info. + object_type1, + (expected_count + - 1), 0, 0); + if (ACPI_FAILURE(status)) { + return (status); + } + break; + + default: + break; + } + + elements++; + } + break; + + default: + + /* Should not get here if predefined info table is correct */ + + ACPI_WARNING((AE_INFO, + "%s: Invalid internal return type in table entry: %X", + pathname, package->ret_info.type)); + + return (AE_AML_INTERNAL); + } + + return (AE_OK); + + package_too_small: + + /* Error exit for the case with an incorrect package count */ + + ACPI_WARNING((AE_INFO, "%s: Return Package is too small - " + "found %u, expected %u", pathname, count, + expected_count)); + + return (AE_AML_OPERAND_VALUE); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_check_package_elements + * + * PARAMETERS: Pathname - Full pathname to the node (for error msgs) + * Elements - Pointer to the package elements array + * Type1 - Object type for first group + * Count1 - Count for first group + * Type2 - Object type for second group + * Count2 - Count for second group + * + * RETURN: Status + * + * DESCRIPTION: Check that all elements of a package are of the correct object + * type. Supports up to two groups of different object types. + * + ******************************************************************************/ + +static acpi_status +acpi_ns_check_package_elements(char *pathname, + union acpi_operand_object **elements, + u8 type1, u32 count1, u8 type2, u32 count2) +{ + union acpi_operand_object **this_element = elements; + acpi_status status; + u32 i; + + /* + * Up to two groups of package elements are supported by the data + * structure. All elements in each group must be of the same type. + * The second group can have a count of zero. + */ + for (i = 0; i < count1; i++) { + status = acpi_ns_check_object_type(pathname, this_element, + type1, i); + if (ACPI_FAILURE(status)) { + return (status); + } + this_element++; + } + + for (i = 0; i < count2; i++) { + status = acpi_ns_check_object_type(pathname, this_element, + type2, (i + count1)); + if (ACPI_FAILURE(status)) { + return (status); + } + this_element++; + } + + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_check_object_type + * + * PARAMETERS: Pathname - Full pathname to the node (for error msgs) + * return_object_ptr - Pointer to the object returned from the + * evaluation of a method or object + * expected_btypes - Bitmap of expected return type(s) + * package_index - Index of object within parent package (if + * applicable - ACPI_NOT_PACKAGE otherwise) + * + * RETURN: Status + * + * DESCRIPTION: Check the type of the return object against the expected object + * type(s). Use of Btype allows multiple expected object types. + * + ******************************************************************************/ + +static acpi_status +acpi_ns_check_object_type(char *pathname, + union acpi_operand_object **return_object_ptr, + u32 expected_btypes, u32 package_index) +{ + union acpi_operand_object *return_object = *return_object_ptr; + acpi_status status = AE_OK; + u32 return_btype; + char type_buffer[48]; /* Room for 5 types */ + u32 this_rtype; + u32 i; + u32 j; + + /* + * If we get a NULL return_object here, it is a NULL package element, + * and this is always an error. + */ + if (!return_object) { + goto type_error_exit; + } + + /* A Namespace node should not get here, but make sure */ + + if (ACPI_GET_DESCRIPTOR_TYPE(return_object) == ACPI_DESC_TYPE_NAMED) { + ACPI_WARNING((AE_INFO, + "%s: Invalid return type - Found a Namespace node [%4.4s] type %s", + pathname, return_object->node.name.ascii, + acpi_ut_get_type_name(return_object->node.type))); + return (AE_AML_OPERAND_TYPE); + } + + /* + * Convert the object type (ACPI_TYPE_xxx) to a bitmapped object type. + * The bitmapped type allows multiple possible return types. + * + * Note, the cases below must handle all of the possible types returned + * from all of the predefined names (including elements of returned + * packages) + */ + switch (ACPI_GET_OBJECT_TYPE(return_object)) { + case ACPI_TYPE_INTEGER: + return_btype = ACPI_RTYPE_INTEGER; + break; + + case ACPI_TYPE_BUFFER: + return_btype = ACPI_RTYPE_BUFFER; + break; + + case ACPI_TYPE_STRING: + return_btype = ACPI_RTYPE_STRING; + break; + + case ACPI_TYPE_PACKAGE: + return_btype = ACPI_RTYPE_PACKAGE; + break; + + case ACPI_TYPE_LOCAL_REFERENCE: + return_btype = ACPI_RTYPE_REFERENCE; + break; + + default: + /* Not one of the supported objects, must be incorrect */ + + goto type_error_exit; + } + + /* Is the object one of the expected types? */ + + if (!(return_btype & expected_btypes)) { + + /* Type mismatch -- attempt repair of the returned object */ + + status = acpi_ns_repair_object(expected_btypes, package_index, + return_object_ptr); + if (ACPI_SUCCESS(status)) { + return (status); + } + goto type_error_exit; + } + + /* For reference objects, check that the reference type is correct */ + + if (ACPI_GET_OBJECT_TYPE(return_object) == ACPI_TYPE_LOCAL_REFERENCE) { + status = acpi_ns_check_reference(pathname, return_object); + } + + return (status); + + type_error_exit: + + /* Create a string with all expected types for this predefined object */ + + j = 1; + type_buffer[0] = 0; + this_rtype = ACPI_RTYPE_INTEGER; + + for (i = 0; i < ACPI_NUM_RTYPES; i++) { + + /* If one of the expected types, concatenate the name of this type */ + + if (expected_btypes & this_rtype) { + ACPI_STRCAT(type_buffer, &acpi_rtype_names[i][j]); + j = 0; /* Use name separator from now on */ + } + this_rtype <<= 1; /* Next Rtype */ + } + + if (package_index == ACPI_NOT_PACKAGE) { + ACPI_WARNING((AE_INFO, + "%s: Return type mismatch - found %s, expected %s", + pathname, + acpi_ut_get_object_type_name(return_object), + type_buffer)); + } else { + ACPI_WARNING((AE_INFO, + "%s: Return Package type mismatch at index %u - " + "found %s, expected %s", pathname, package_index, + acpi_ut_get_object_type_name(return_object), + type_buffer)); + } + + return (AE_AML_OPERAND_TYPE); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_check_reference + * + * PARAMETERS: Pathname - Full pathname to the node (for error msgs) + * return_object - Object returned from the evaluation of a + * method or object + * + * RETURN: Status + * + * DESCRIPTION: Check a returned reference object for the correct reference + * type. The only reference type that can be returned from a + * predefined method is a named reference. All others are invalid. + * + ******************************************************************************/ + +static acpi_status +acpi_ns_check_reference(char *pathname, + union acpi_operand_object *return_object) +{ + + /* + * Check the reference object for the correct reference type (opcode). + * The only type of reference that can be converted to an union acpi_object is + * a reference to a named object (reference class: NAME) + */ + if (return_object->reference.class == ACPI_REFCLASS_NAME) { + return (AE_OK); + } + + ACPI_WARNING((AE_INFO, + "%s: Return type mismatch - unexpected reference object type [%s] %2.2X", + pathname, acpi_ut_get_reference_name(return_object), + return_object->reference.class)); + + return (AE_AML_OPERAND_TYPE); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_repair_object + * + * PARAMETERS: Pathname - Full pathname to the node (for error msgs) + * package_index - Used to determine if target is in a package + * return_object_ptr - Pointer to the object returned from the + * evaluation of a method or object + * + * RETURN: Status. AE_OK if repair was successful. + * + * DESCRIPTION: Attempt to repair/convert a return object of a type that was + * not expected. + * + ******************************************************************************/ + +static acpi_status +acpi_ns_repair_object(u32 expected_btypes, + u32 package_index, + union acpi_operand_object **return_object_ptr) +{ + union acpi_operand_object *return_object = *return_object_ptr; + union acpi_operand_object *new_object; + acpi_size length; + + switch (ACPI_GET_OBJECT_TYPE(return_object)) { + case ACPI_TYPE_BUFFER: + + if (!(expected_btypes & ACPI_RTYPE_STRING)) { + return (AE_AML_OPERAND_TYPE); + } + + /* + * Have a Buffer, expected a String, convert. Use a to_string + * conversion, no transform performed on the buffer data. The best + * example of this is the _BIF method, where the string data from + * the battery is often (incorrectly) returned as buffer object(s). + */ + length = 0; + while ((length < return_object->buffer.length) && + (return_object->buffer.pointer[length])) { + length++; + } + + /* Allocate a new string object */ + + new_object = acpi_ut_create_string_object(length); + if (!new_object) { + return (AE_NO_MEMORY); + } + + /* + * Copy the raw buffer data with no transform. String is already NULL + * terminated at Length+1. + */ + ACPI_MEMCPY(new_object->string.pointer, + return_object->buffer.pointer, length); + + /* Install the new return object */ + + acpi_ut_remove_reference(return_object); + *return_object_ptr = new_object; + + /* + * If the object is a package element, we need to: + * 1. Decrement the reference count of the orignal object, it was + * incremented when building the package + * 2. Increment the reference count of the new object, it will be + * decremented when releasing the package + */ + if (package_index != ACPI_NOT_PACKAGE) { + acpi_ut_remove_reference(return_object); + acpi_ut_add_reference(new_object); + } + return (AE_OK); + + default: + break; + } + + return (AE_AML_OPERAND_TYPE); +} diff --git a/drivers/acpi/acpica/nssearch.c b/drivers/acpi/acpica/nssearch.c new file mode 100644 index 000000000000..a76c731e3ba5 --- /dev/null +++ b/drivers/acpi/acpica/nssearch.c @@ -0,0 +1,415 @@ +/******************************************************************************* + * + * Module Name: nssearch - Namespace search + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_NAMESPACE +ACPI_MODULE_NAME("nssearch") + +/* Local prototypes */ +static acpi_status +acpi_ns_search_parent_tree(u32 target_name, + struct acpi_namespace_node *node, + acpi_object_type type, + struct acpi_namespace_node **return_node); + +/******************************************************************************* + * + * FUNCTION: acpi_ns_search_one_scope + * + * PARAMETERS: target_name - Ascii ACPI name to search for + * parent_node - Starting node where search will begin + * Type - Object type to match + * return_node - Where the matched Named obj is returned + * + * RETURN: Status + * + * DESCRIPTION: Search a single level of the namespace. Performs a + * simple search of the specified level, and does not add + * entries or search parents. + * + * + * Named object lists are built (and subsequently dumped) in the + * order in which the names are encountered during the namespace load; + * + * All namespace searching is linear in this implementation, but + * could be easily modified to support any improved search + * algorithm. However, the linear search was chosen for simplicity + * and because the trees are small and the other interpreter + * execution overhead is relatively high. + * + * Note: CPU execution analysis has shown that the AML interpreter spends + * a very small percentage of its time searching the namespace. Therefore, + * the linear search seems to be sufficient, as there would seem to be + * little value in improving the search. + * + ******************************************************************************/ + +acpi_status +acpi_ns_search_one_scope(u32 target_name, + struct acpi_namespace_node *parent_node, + acpi_object_type type, + struct acpi_namespace_node **return_node) +{ + struct acpi_namespace_node *node; + + ACPI_FUNCTION_TRACE(ns_search_one_scope); + +#ifdef ACPI_DEBUG_OUTPUT + if (ACPI_LV_NAMES & acpi_dbg_level) { + char *scope_name; + + scope_name = acpi_ns_get_external_pathname(parent_node); + if (scope_name) { + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, + "Searching %s (%p) For [%4.4s] (%s)\n", + scope_name, parent_node, + ACPI_CAST_PTR(char, &target_name), + acpi_ut_get_type_name(type))); + + ACPI_FREE(scope_name); + } + } +#endif + + /* + * Search for name at this namespace level, which is to say that we + * must search for the name among the children of this object + */ + node = parent_node->child; + while (node) { + + /* Check for match against the name */ + + if (node->name.integer == target_name) { + + /* Resolve a control method alias if any */ + + if (acpi_ns_get_type(node) == + ACPI_TYPE_LOCAL_METHOD_ALIAS) { + node = + ACPI_CAST_PTR(struct acpi_namespace_node, + node->object); + } + + /* Found matching entry */ + + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, + "Name [%4.4s] (%s) %p found in scope [%4.4s] %p\n", + ACPI_CAST_PTR(char, &target_name), + acpi_ut_get_type_name(node->type), + node, + acpi_ut_get_node_name(parent_node), + parent_node)); + + *return_node = node; + return_ACPI_STATUS(AE_OK); + } + + /* + * The last entry in the list points back to the parent, + * so a flag is used to indicate the end-of-list + */ + if (node->flags & ANOBJ_END_OF_PEER_LIST) { + + /* Searched entire list, we are done */ + + break; + } + + /* Didn't match name, move on to the next peer object */ + + node = node->peer; + } + + /* Searched entire namespace level, not found */ + + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, + "Name [%4.4s] (%s) not found in search in scope [%4.4s] %p first child %p\n", + ACPI_CAST_PTR(char, &target_name), + acpi_ut_get_type_name(type), + acpi_ut_get_node_name(parent_node), parent_node, + parent_node->child)); + + return_ACPI_STATUS(AE_NOT_FOUND); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_search_parent_tree + * + * PARAMETERS: target_name - Ascii ACPI name to search for + * Node - Starting node where search will begin + * Type - Object type to match + * return_node - Where the matched Node is returned + * + * RETURN: Status + * + * DESCRIPTION: Called when a name has not been found in the current namespace + * level. Before adding it or giving up, ACPI scope rules require + * searching enclosing scopes in cases identified by acpi_ns_local(). + * + * "A name is located by finding the matching name in the current + * name space, and then in the parent name space. If the parent + * name space does not contain the name, the search continues + * recursively until either the name is found or the name space + * does not have a parent (the root of the name space). This + * indicates that the name is not found" (From ACPI Specification, + * section 5.3) + * + ******************************************************************************/ + +static acpi_status +acpi_ns_search_parent_tree(u32 target_name, + struct acpi_namespace_node *node, + acpi_object_type type, + struct acpi_namespace_node **return_node) +{ + acpi_status status; + struct acpi_namespace_node *parent_node; + + ACPI_FUNCTION_TRACE(ns_search_parent_tree); + + parent_node = acpi_ns_get_parent_node(node); + + /* + * If there is no parent (i.e., we are at the root) or type is "local", + * we won't be searching the parent tree. + */ + if (!parent_node) { + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "[%4.4s] has no parent\n", + ACPI_CAST_PTR(char, &target_name))); + return_ACPI_STATUS(AE_NOT_FOUND); + } + + if (acpi_ns_local(type)) { + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, + "[%4.4s] type [%s] must be local to this scope (no parent search)\n", + ACPI_CAST_PTR(char, &target_name), + acpi_ut_get_type_name(type))); + return_ACPI_STATUS(AE_NOT_FOUND); + } + + /* Search the parent tree */ + + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, + "Searching parent [%4.4s] for [%4.4s]\n", + acpi_ut_get_node_name(parent_node), + ACPI_CAST_PTR(char, &target_name))); + + /* + * Search parents until target is found or we have backed up to the root + */ + while (parent_node) { + /* + * Search parent scope. Use TYPE_ANY because we don't care about the + * object type at this point, we only care about the existence of + * the actual name we are searching for. Typechecking comes later. + */ + status = + acpi_ns_search_one_scope(target_name, parent_node, + ACPI_TYPE_ANY, return_node); + if (ACPI_SUCCESS(status)) { + return_ACPI_STATUS(status); + } + + /* Not found here, go up another level (until we reach the root) */ + + parent_node = acpi_ns_get_parent_node(parent_node); + } + + /* Not found in parent tree */ + + return_ACPI_STATUS(AE_NOT_FOUND); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_search_and_enter + * + * PARAMETERS: target_name - Ascii ACPI name to search for (4 chars) + * walk_state - Current state of the walk + * Node - Starting node where search will begin + * interpreter_mode - Add names only in ACPI_MODE_LOAD_PASS_x. + * Otherwise,search only. + * Type - Object type to match + * Flags - Flags describing the search restrictions + * return_node - Where the Node is returned + * + * RETURN: Status + * + * DESCRIPTION: Search for a name segment in a single namespace level, + * optionally adding it if it is not found. If the passed + * Type is not Any and the type previously stored in the + * entry was Any (i.e. unknown), update the stored type. + * + * In ACPI_IMODE_EXECUTE, search only. + * In other modes, search and add if not found. + * + ******************************************************************************/ + +acpi_status +acpi_ns_search_and_enter(u32 target_name, + struct acpi_walk_state *walk_state, + struct acpi_namespace_node *node, + acpi_interpreter_mode interpreter_mode, + acpi_object_type type, + u32 flags, struct acpi_namespace_node **return_node) +{ + acpi_status status; + struct acpi_namespace_node *new_node; + + ACPI_FUNCTION_TRACE(ns_search_and_enter); + + /* Parameter validation */ + + if (!node || !target_name || !return_node) { + ACPI_ERROR((AE_INFO, + "Null parameter: Node %p Name %X ReturnNode %p", + node, target_name, return_node)); + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* + * Name must consist of valid ACPI characters. We will repair the name if + * necessary because we don't want to abort because of this, but we want + * all namespace names to be printable. A warning message is appropriate. + * + * This issue came up because there are in fact machines that exhibit + * this problem, and we want to be able to enable ACPI support for them, + * even though there are a few bad names. + */ + if (!acpi_ut_valid_acpi_name(target_name)) { + target_name = + acpi_ut_repair_name(ACPI_CAST_PTR(char, &target_name)); + + /* Report warning only if in strict mode or debug mode */ + + if (!acpi_gbl_enable_interpreter_slack) { + ACPI_WARNING((AE_INFO, + "Found bad character(s) in name, repaired: [%4.4s]\n", + ACPI_CAST_PTR(char, &target_name))); + } else { + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Found bad character(s) in name, repaired: [%4.4s]\n", + ACPI_CAST_PTR(char, &target_name))); + } + } + + /* Try to find the name in the namespace level specified by the caller */ + + *return_node = ACPI_ENTRY_NOT_FOUND; + status = acpi_ns_search_one_scope(target_name, node, type, return_node); + if (status != AE_NOT_FOUND) { + /* + * If we found it AND the request specifies that a find is an error, + * return the error + */ + if ((status == AE_OK) && (flags & ACPI_NS_ERROR_IF_FOUND)) { + status = AE_ALREADY_EXISTS; + } + + /* Either found it or there was an error: finished either way */ + + return_ACPI_STATUS(status); + } + + /* + * The name was not found. If we are NOT performing the first pass + * (name entry) of loading the namespace, search the parent tree (all the + * way to the root if necessary.) We don't want to perform the parent + * search when the namespace is actually being loaded. We want to perform + * the search when namespace references are being resolved (load pass 2) + * and during the execution phase. + */ + if ((interpreter_mode != ACPI_IMODE_LOAD_PASS1) && + (flags & ACPI_NS_SEARCH_PARENT)) { + /* + * Not found at this level - search parent tree according to the + * ACPI specification + */ + status = + acpi_ns_search_parent_tree(target_name, node, type, + return_node); + if (ACPI_SUCCESS(status)) { + return_ACPI_STATUS(status); + } + } + + /* In execute mode, just search, never add names. Exit now */ + + if (interpreter_mode == ACPI_IMODE_EXECUTE) { + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, + "%4.4s Not found in %p [Not adding]\n", + ACPI_CAST_PTR(char, &target_name), node)); + + return_ACPI_STATUS(AE_NOT_FOUND); + } + + /* Create the new named object */ + + new_node = acpi_ns_create_node(target_name); + if (!new_node) { + return_ACPI_STATUS(AE_NO_MEMORY); + } +#ifdef ACPI_ASL_COMPILER + /* + * Node is an object defined by an External() statement + */ + if (flags & ACPI_NS_EXTERNAL) { + new_node->flags |= ANOBJ_IS_EXTERNAL; + } +#endif + + if (flags & ACPI_NS_TEMPORARY) { + new_node->flags |= ANOBJ_TEMPORARY; + } + + /* Install the new object into the parent's list of children */ + + acpi_ns_install_node(walk_state, node, new_node, type); + *return_node = new_node; + return_ACPI_STATUS(AE_OK); +} diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c new file mode 100644 index 000000000000..a443d2805d2c --- /dev/null +++ b/drivers/acpi/acpica/nsutils.c @@ -0,0 +1,997 @@ +/****************************************************************************** + * + * Module Name: nsutils - Utilities for accessing ACPI namespace, accessing + * parents and siblings and Scope manipulation + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_NAMESPACE +ACPI_MODULE_NAME("nsutils") + +/* Local prototypes */ +static u8 acpi_ns_valid_path_separator(char sep); + +#ifdef ACPI_OBSOLETE_FUNCTIONS +acpi_name acpi_ns_find_parent_name(struct acpi_namespace_node *node_to_search); +#endif + +/******************************************************************************* + * + * FUNCTION: acpi_ns_report_error + * + * PARAMETERS: module_name - Caller's module name (for error output) + * line_number - Caller's line number (for error output) + * internal_name - Name or path of the namespace node + * lookup_status - Exception code from NS lookup + * + * RETURN: None + * + * DESCRIPTION: Print warning message with full pathname + * + ******************************************************************************/ + +void +acpi_ns_report_error(const char *module_name, + u32 line_number, + const char *internal_name, acpi_status lookup_status) +{ + acpi_status status; + u32 bad_name; + char *name = NULL; + + acpi_os_printf("ACPI Error (%s-%04d): ", module_name, line_number); + + if (lookup_status == AE_BAD_CHARACTER) { + + /* There is a non-ascii character in the name */ + + ACPI_MOVE_32_TO_32(&bad_name, internal_name); + acpi_os_printf("[0x%4.4X] (NON-ASCII)", bad_name); + } else { + /* Convert path to external format */ + + status = acpi_ns_externalize_name(ACPI_UINT32_MAX, + internal_name, NULL, &name); + + /* Print target name */ + + if (ACPI_SUCCESS(status)) { + acpi_os_printf("[%s]", name); + } else { + acpi_os_printf("[COULD NOT EXTERNALIZE NAME]"); + } + + if (name) { + ACPI_FREE(name); + } + } + + acpi_os_printf(" Namespace lookup failure, %s\n", + acpi_format_exception(lookup_status)); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_report_method_error + * + * PARAMETERS: module_name - Caller's module name (for error output) + * line_number - Caller's line number (for error output) + * Message - Error message to use on failure + * prefix_node - Prefix relative to the path + * Path - Path to the node (optional) + * method_status - Execution status + * + * RETURN: None + * + * DESCRIPTION: Print warning message with full pathname + * + ******************************************************************************/ + +void +acpi_ns_report_method_error(const char *module_name, + u32 line_number, + const char *message, + struct acpi_namespace_node *prefix_node, + const char *path, acpi_status method_status) +{ + acpi_status status; + struct acpi_namespace_node *node = prefix_node; + + acpi_os_printf("ACPI Error (%s-%04d): ", module_name, line_number); + + if (path) { + status = + acpi_ns_get_node(prefix_node, path, ACPI_NS_NO_UPSEARCH, + &node); + if (ACPI_FAILURE(status)) { + acpi_os_printf("[Could not get node by pathname]"); + } + } + + acpi_ns_print_node_pathname(node, message); + acpi_os_printf(", %s\n", acpi_format_exception(method_status)); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_print_node_pathname + * + * PARAMETERS: Node - Object + * Message - Prefix message + * + * DESCRIPTION: Print an object's full namespace pathname + * Manages allocation/freeing of a pathname buffer + * + ******************************************************************************/ + +void +acpi_ns_print_node_pathname(struct acpi_namespace_node *node, + const char *message) +{ + struct acpi_buffer buffer; + acpi_status status; + + if (!node) { + acpi_os_printf("[NULL NAME]"); + return; + } + + /* Convert handle to full pathname and print it (with supplied message) */ + + buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; + + status = acpi_ns_handle_to_pathname(node, &buffer); + if (ACPI_SUCCESS(status)) { + if (message) { + acpi_os_printf("%s ", message); + } + + acpi_os_printf("[%s] (Node %p)", (char *)buffer.pointer, node); + ACPI_FREE(buffer.pointer); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_valid_root_prefix + * + * PARAMETERS: Prefix - Character to be checked + * + * RETURN: TRUE if a valid prefix + * + * DESCRIPTION: Check if a character is a valid ACPI Root prefix + * + ******************************************************************************/ + +u8 acpi_ns_valid_root_prefix(char prefix) +{ + + return ((u8) (prefix == '\\')); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_valid_path_separator + * + * PARAMETERS: Sep - Character to be checked + * + * RETURN: TRUE if a valid path separator + * + * DESCRIPTION: Check if a character is a valid ACPI path separator + * + ******************************************************************************/ + +static u8 acpi_ns_valid_path_separator(char sep) +{ + + return ((u8) (sep == '.')); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_get_type + * + * PARAMETERS: Node - Parent Node to be examined + * + * RETURN: Type field from Node whose handle is passed + * + * DESCRIPTION: Return the type of a Namespace node + * + ******************************************************************************/ + +acpi_object_type acpi_ns_get_type(struct acpi_namespace_node * node) +{ + ACPI_FUNCTION_TRACE(ns_get_type); + + if (!node) { + ACPI_WARNING((AE_INFO, "Null Node parameter")); + return_UINT32(ACPI_TYPE_ANY); + } + + return_UINT32((acpi_object_type) node->type); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_local + * + * PARAMETERS: Type - A namespace object type + * + * RETURN: LOCAL if names must be found locally in objects of the + * passed type, 0 if enclosing scopes should be searched + * + * DESCRIPTION: Returns scope rule for the given object type. + * + ******************************************************************************/ + +u32 acpi_ns_local(acpi_object_type type) +{ + ACPI_FUNCTION_TRACE(ns_local); + + if (!acpi_ut_valid_object_type(type)) { + + /* Type code out of range */ + + ACPI_WARNING((AE_INFO, "Invalid Object Type %X", type)); + return_UINT32(ACPI_NS_NORMAL); + } + + return_UINT32((u32) acpi_gbl_ns_properties[type] & ACPI_NS_LOCAL); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_get_internal_name_length + * + * PARAMETERS: Info - Info struct initialized with the + * external name pointer. + * + * RETURN: None + * + * DESCRIPTION: Calculate the length of the internal (AML) namestring + * corresponding to the external (ASL) namestring. + * + ******************************************************************************/ + +void acpi_ns_get_internal_name_length(struct acpi_namestring_info *info) +{ + const char *next_external_char; + u32 i; + + ACPI_FUNCTION_ENTRY(); + + next_external_char = info->external_name; + info->num_carats = 0; + info->num_segments = 0; + info->fully_qualified = FALSE; + + /* + * For the internal name, the required length is 4 bytes per segment, plus + * 1 each for root_prefix, multi_name_prefix_op, segment count, trailing null + * (which is not really needed, but no there's harm in putting it there) + * + * strlen() + 1 covers the first name_seg, which has no path separator + */ + if (acpi_ns_valid_root_prefix(*next_external_char)) { + info->fully_qualified = TRUE; + next_external_char++; + + /* Skip redundant root_prefix, like \\_SB.PCI0.SBRG.EC0 */ + + while (acpi_ns_valid_root_prefix(*next_external_char)) { + next_external_char++; + } + } else { + /* + * Handle Carat prefixes + */ + while (*next_external_char == '^') { + info->num_carats++; + next_external_char++; + } + } + + /* + * Determine the number of ACPI name "segments" by counting the number of + * path separators within the string. Start with one segment since the + * segment count is [(# separators) + 1], and zero separators is ok. + */ + if (*next_external_char) { + info->num_segments = 1; + for (i = 0; next_external_char[i]; i++) { + if (acpi_ns_valid_path_separator(next_external_char[i])) { + info->num_segments++; + } + } + } + + info->length = (ACPI_NAME_SIZE * info->num_segments) + + 4 + info->num_carats; + + info->next_external_char = next_external_char; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_build_internal_name + * + * PARAMETERS: Info - Info struct fully initialized + * + * RETURN: Status + * + * DESCRIPTION: Construct the internal (AML) namestring + * corresponding to the external (ASL) namestring. + * + ******************************************************************************/ + +acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info) +{ + u32 num_segments = info->num_segments; + char *internal_name = info->internal_name; + const char *external_name = info->next_external_char; + char *result = NULL; + u32 i; + + ACPI_FUNCTION_TRACE(ns_build_internal_name); + + /* Setup the correct prefixes, counts, and pointers */ + + if (info->fully_qualified) { + internal_name[0] = '\\'; + + if (num_segments <= 1) { + result = &internal_name[1]; + } else if (num_segments == 2) { + internal_name[1] = AML_DUAL_NAME_PREFIX; + result = &internal_name[2]; + } else { + internal_name[1] = AML_MULTI_NAME_PREFIX_OP; + internal_name[2] = (char)num_segments; + result = &internal_name[3]; + } + } else { + /* + * Not fully qualified. + * Handle Carats first, then append the name segments + */ + i = 0; + if (info->num_carats) { + for (i = 0; i < info->num_carats; i++) { + internal_name[i] = '^'; + } + } + + if (num_segments <= 1) { + result = &internal_name[i]; + } else if (num_segments == 2) { + internal_name[i] = AML_DUAL_NAME_PREFIX; + result = &internal_name[(acpi_size) i + 1]; + } else { + internal_name[i] = AML_MULTI_NAME_PREFIX_OP; + internal_name[(acpi_size) i + 1] = (char)num_segments; + result = &internal_name[(acpi_size) i + 2]; + } + } + + /* Build the name (minus path separators) */ + + for (; num_segments; num_segments--) { + for (i = 0; i < ACPI_NAME_SIZE; i++) { + if (acpi_ns_valid_path_separator(*external_name) || + (*external_name == 0)) { + + /* Pad the segment with underscore(s) if segment is short */ + + result[i] = '_'; + } else { + /* Convert the character to uppercase and save it */ + + result[i] = + (char)ACPI_TOUPPER((int)*external_name); + external_name++; + } + } + + /* Now we must have a path separator, or the pathname is bad */ + + if (!acpi_ns_valid_path_separator(*external_name) && + (*external_name != 0)) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* Move on the next segment */ + + external_name++; + result += ACPI_NAME_SIZE; + } + + /* Terminate the string */ + + *result = 0; + + if (info->fully_qualified) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Returning [%p] (abs) \"\\%s\"\n", + internal_name, internal_name)); + } else { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Returning [%p] (rel) \"%s\"\n", + internal_name, internal_name)); + } + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_internalize_name + * + * PARAMETERS: *external_name - External representation of name + * **Converted Name - Where to return the resulting + * internal represention of the name + * + * RETURN: Status + * + * DESCRIPTION: Convert an external representation (e.g. "\_PR_.CPU0") + * to internal form (e.g. 5c 2f 02 5f 50 52 5f 43 50 55 30) + * + *******************************************************************************/ + +acpi_status +acpi_ns_internalize_name(const char *external_name, char **converted_name) +{ + char *internal_name; + struct acpi_namestring_info info; + acpi_status status; + + ACPI_FUNCTION_TRACE(ns_internalize_name); + + if ((!external_name) || (*external_name == 0) || (!converted_name)) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* Get the length of the new internal name */ + + info.external_name = external_name; + acpi_ns_get_internal_name_length(&info); + + /* We need a segment to store the internal name */ + + internal_name = ACPI_ALLOCATE_ZEROED(info.length); + if (!internal_name) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* Build the name */ + + info.internal_name = internal_name; + status = acpi_ns_build_internal_name(&info); + if (ACPI_FAILURE(status)) { + ACPI_FREE(internal_name); + return_ACPI_STATUS(status); + } + + *converted_name = internal_name; + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_externalize_name + * + * PARAMETERS: internal_name_length - Lenth of the internal name below + * internal_name - Internal representation of name + * converted_name_length - Where the length is returned + * converted_name - Where the resulting external name + * is returned + * + * RETURN: Status + * + * DESCRIPTION: Convert internal name (e.g. 5c 2f 02 5f 50 52 5f 43 50 55 30) + * to its external (printable) form (e.g. "\_PR_.CPU0") + * + ******************************************************************************/ + +acpi_status +acpi_ns_externalize_name(u32 internal_name_length, + const char *internal_name, + u32 * converted_name_length, char **converted_name) +{ + u32 names_index = 0; + u32 num_segments = 0; + u32 required_length; + u32 prefix_length = 0; + u32 i = 0; + u32 j = 0; + + ACPI_FUNCTION_TRACE(ns_externalize_name); + + if (!internal_name_length || !internal_name || !converted_name) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* + * Check for a prefix (one '\' | one or more '^'). + */ + switch (internal_name[0]) { + case '\\': + prefix_length = 1; + break; + + case '^': + for (i = 0; i < internal_name_length; i++) { + if (internal_name[i] == '^') { + prefix_length = i + 1; + } else { + break; + } + } + + if (i == internal_name_length) { + prefix_length = i; + } + + break; + + default: + break; + } + + /* + * Check for object names. Note that there could be 0-255 of these + * 4-byte elements. + */ + if (prefix_length < internal_name_length) { + switch (internal_name[prefix_length]) { + case AML_MULTI_NAME_PREFIX_OP: + + /* 4-byte names */ + + names_index = prefix_length + 2; + num_segments = (u8) + internal_name[(acpi_size) prefix_length + 1]; + break; + + case AML_DUAL_NAME_PREFIX: + + /* Two 4-byte names */ + + names_index = prefix_length + 1; + num_segments = 2; + break; + + case 0: + + /* null_name */ + + names_index = 0; + num_segments = 0; + break; + + default: + + /* one 4-byte name */ + + names_index = prefix_length; + num_segments = 1; + break; + } + } + + /* + * Calculate the length of converted_name, which equals the length + * of the prefix, length of all object names, length of any required + * punctuation ('.') between object names, plus the NULL terminator. + */ + required_length = prefix_length + (4 * num_segments) + + ((num_segments > 0) ? (num_segments - 1) : 0) + 1; + + /* + * Check to see if we're still in bounds. If not, there's a problem + * with internal_name (invalid format). + */ + if (required_length > internal_name_length) { + ACPI_ERROR((AE_INFO, "Invalid internal name")); + return_ACPI_STATUS(AE_BAD_PATHNAME); + } + + /* + * Build converted_name + */ + *converted_name = ACPI_ALLOCATE_ZEROED(required_length); + if (!(*converted_name)) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + j = 0; + + for (i = 0; i < prefix_length; i++) { + (*converted_name)[j++] = internal_name[i]; + } + + if (num_segments > 0) { + for (i = 0; i < num_segments; i++) { + if (i > 0) { + (*converted_name)[j++] = '.'; + } + + (*converted_name)[j++] = internal_name[names_index++]; + (*converted_name)[j++] = internal_name[names_index++]; + (*converted_name)[j++] = internal_name[names_index++]; + (*converted_name)[j++] = internal_name[names_index++]; + } + } + + if (converted_name_length) { + *converted_name_length = (u32) required_length; + } + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_map_handle_to_node + * + * PARAMETERS: Handle - Handle to be converted to an Node + * + * RETURN: A Name table entry pointer + * + * DESCRIPTION: Convert a namespace handle to a real Node + * + * Note: Real integer handles would allow for more verification + * and keep all pointers within this subsystem - however this introduces + * more (and perhaps unnecessary) overhead. + * + ******************************************************************************/ + +struct acpi_namespace_node *acpi_ns_map_handle_to_node(acpi_handle handle) +{ + + ACPI_FUNCTION_ENTRY(); + + /* + * Simple implementation + */ + if ((!handle) || (handle == ACPI_ROOT_OBJECT)) { + return (acpi_gbl_root_node); + } + + /* We can at least attempt to verify the handle */ + + if (ACPI_GET_DESCRIPTOR_TYPE(handle) != ACPI_DESC_TYPE_NAMED) { + return (NULL); + } + + return (ACPI_CAST_PTR(struct acpi_namespace_node, handle)); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_convert_entry_to_handle + * + * PARAMETERS: Node - Node to be converted to a Handle + * + * RETURN: A user handle + * + * DESCRIPTION: Convert a real Node to a namespace handle + * + ******************************************************************************/ + +acpi_handle acpi_ns_convert_entry_to_handle(struct acpi_namespace_node *node) +{ + + /* + * Simple implementation for now; + */ + return ((acpi_handle) node); + +/* Example future implementation --------------------- + + if (!Node) + { + return (NULL); + } + + if (Node == acpi_gbl_root_node) + { + return (ACPI_ROOT_OBJECT); + } + + return ((acpi_handle) Node); +------------------------------------------------------*/ +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_terminate + * + * PARAMETERS: none + * + * RETURN: none + * + * DESCRIPTION: free memory allocated for namespace and ACPI table storage. + * + ******************************************************************************/ + +void acpi_ns_terminate(void) +{ + union acpi_operand_object *obj_desc; + + ACPI_FUNCTION_TRACE(ns_terminate); + + /* + * 1) Free the entire namespace -- all nodes and objects + * + * Delete all object descriptors attached to namepsace nodes + */ + acpi_ns_delete_namespace_subtree(acpi_gbl_root_node); + + /* Detach any objects attached to the root */ + + obj_desc = acpi_ns_get_attached_object(acpi_gbl_root_node); + if (obj_desc) { + acpi_ns_detach_object(acpi_gbl_root_node); + } + + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Namespace freed\n")); + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_opens_scope + * + * PARAMETERS: Type - A valid namespace type + * + * RETURN: NEWSCOPE if the passed type "opens a name scope" according + * to the ACPI specification, else 0 + * + ******************************************************************************/ + +u32 acpi_ns_opens_scope(acpi_object_type type) +{ + ACPI_FUNCTION_TRACE_STR(ns_opens_scope, acpi_ut_get_type_name(type)); + + if (!acpi_ut_valid_object_type(type)) { + + /* type code out of range */ + + ACPI_WARNING((AE_INFO, "Invalid Object Type %X", type)); + return_UINT32(ACPI_NS_NORMAL); + } + + return_UINT32(((u32) acpi_gbl_ns_properties[type]) & ACPI_NS_NEWSCOPE); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_get_node + * + * PARAMETERS: *Pathname - Name to be found, in external (ASL) format. The + * \ (backslash) and ^ (carat) prefixes, and the + * . (period) to separate segments are supported. + * prefix_node - Root of subtree to be searched, or NS_ALL for the + * root of the name space. If Name is fully + * qualified (first s8 is '\'), the passed value + * of Scope will not be accessed. + * Flags - Used to indicate whether to perform upsearch or + * not. + * return_node - Where the Node is returned + * + * DESCRIPTION: Look up a name relative to a given scope and return the + * corresponding Node. NOTE: Scope can be null. + * + * MUTEX: Locks namespace + * + ******************************************************************************/ + +acpi_status +acpi_ns_get_node(struct acpi_namespace_node *prefix_node, + const char *pathname, + u32 flags, struct acpi_namespace_node **return_node) +{ + union acpi_generic_state scope_info; + acpi_status status; + char *internal_path; + + ACPI_FUNCTION_TRACE_PTR(ns_get_node, pathname); + + if (!pathname) { + *return_node = prefix_node; + if (!prefix_node) { + *return_node = acpi_gbl_root_node; + } + return_ACPI_STATUS(AE_OK); + } + + /* Convert path to internal representation */ + + status = acpi_ns_internalize_name(pathname, &internal_path); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Must lock namespace during lookup */ + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + /* Setup lookup scope (search starting point) */ + + scope_info.scope.node = prefix_node; + + /* Lookup the name in the namespace */ + + status = acpi_ns_lookup(&scope_info, internal_path, ACPI_TYPE_ANY, + ACPI_IMODE_EXECUTE, + (flags | ACPI_NS_DONT_OPEN_SCOPE), NULL, + return_node); + if (ACPI_FAILURE(status)) { + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s, %s\n", + pathname, acpi_format_exception(status))); + } + + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + + cleanup: + ACPI_FREE(internal_path); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_get_parent_node + * + * PARAMETERS: Node - Current table entry + * + * RETURN: Parent entry of the given entry + * + * DESCRIPTION: Obtain the parent entry for a given entry in the namespace. + * + ******************************************************************************/ + +struct acpi_namespace_node *acpi_ns_get_parent_node(struct acpi_namespace_node + *node) +{ + ACPI_FUNCTION_ENTRY(); + + if (!node) { + return (NULL); + } + + /* + * Walk to the end of this peer list. The last entry is marked with a flag + * and the peer pointer is really a pointer back to the parent. This saves + * putting a parent back pointer in each and every named object! + */ + while (!(node->flags & ANOBJ_END_OF_PEER_LIST)) { + node = node->peer; + } + + return (node->peer); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_get_next_valid_node + * + * PARAMETERS: Node - Current table entry + * + * RETURN: Next valid Node in the linked node list. NULL if no more valid + * nodes. + * + * DESCRIPTION: Find the next valid node within a name table. + * Useful for implementing NULL-end-of-list loops. + * + ******************************************************************************/ + +struct acpi_namespace_node *acpi_ns_get_next_valid_node(struct + acpi_namespace_node + *node) +{ + + /* If we are at the end of this peer list, return NULL */ + + if (node->flags & ANOBJ_END_OF_PEER_LIST) { + return NULL; + } + + /* Otherwise just return the next peer */ + + return (node->peer); +} + +#ifdef ACPI_OBSOLETE_FUNCTIONS +/******************************************************************************* + * + * FUNCTION: acpi_ns_find_parent_name + * + * PARAMETERS: *child_node - Named Obj whose name is to be found + * + * RETURN: The ACPI name + * + * DESCRIPTION: Search for the given obj in its parent scope and return the + * name segment, or "????" if the parent name can't be found + * (which "should not happen"). + * + ******************************************************************************/ + +acpi_name acpi_ns_find_parent_name(struct acpi_namespace_node * child_node) +{ + struct acpi_namespace_node *parent_node; + + ACPI_FUNCTION_TRACE(ns_find_parent_name); + + if (child_node) { + + /* Valid entry. Get the parent Node */ + + parent_node = acpi_ns_get_parent_node(child_node); + if (parent_node) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Parent of %p [%4.4s] is %p [%4.4s]\n", + child_node, + acpi_ut_get_node_name(child_node), + parent_node, + acpi_ut_get_node_name(parent_node))); + + if (parent_node->name.integer) { + return_VALUE((acpi_name) parent_node->name. + integer); + } + } + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Unable to find parent of %p (%4.4s)\n", + child_node, + acpi_ut_get_node_name(child_node))); + } + + return_VALUE(ACPI_UNKNOWN_NAME); +} +#endif diff --git a/drivers/acpi/acpica/nswalk.c b/drivers/acpi/acpica/nswalk.c new file mode 100644 index 000000000000..71b83e9807da --- /dev/null +++ b/drivers/acpi/acpica/nswalk.c @@ -0,0 +1,296 @@ +/****************************************************************************** + * + * Module Name: nswalk - Functions for walking the ACPI namespace + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_NAMESPACE +ACPI_MODULE_NAME("nswalk") + +/******************************************************************************* + * + * FUNCTION: acpi_ns_get_next_node + * + * PARAMETERS: Type - Type of node to be searched for + * parent_node - Parent node whose children we are + * getting + * child_node - Previous child that was found. + * The NEXT child will be returned + * + * RETURN: struct acpi_namespace_node - Pointer to the NEXT child or NULL if + * none is found. + * + * DESCRIPTION: Return the next peer node within the namespace. If Handle + * is valid, Scope is ignored. Otherwise, the first node + * within Scope is returned. + * + ******************************************************************************/ +struct acpi_namespace_node *acpi_ns_get_next_node(acpi_object_type type, struct acpi_namespace_node + *parent_node, struct acpi_namespace_node + *child_node) +{ + struct acpi_namespace_node *next_node = NULL; + + ACPI_FUNCTION_ENTRY(); + + if (!child_node) { + + /* It's really the parent's _scope_ that we want */ + + next_node = parent_node->child; + } + + else { + /* Start search at the NEXT node */ + + next_node = acpi_ns_get_next_valid_node(child_node); + } + + /* If any type is OK, we are done */ + + if (type == ACPI_TYPE_ANY) { + + /* next_node is NULL if we are at the end-of-list */ + + return (next_node); + } + + /* Must search for the node -- but within this scope only */ + + while (next_node) { + + /* If type matches, we are done */ + + if (next_node->type == type) { + return (next_node); + } + + /* Otherwise, move on to the next node */ + + next_node = acpi_ns_get_next_valid_node(next_node); + } + + /* Not found */ + + return (NULL); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_walk_namespace + * + * PARAMETERS: Type - acpi_object_type to search for + * start_node - Handle in namespace where search begins + * max_depth - Depth to which search is to reach + * Flags - Whether to unlock the NS before invoking + * the callback routine + * user_function - Called when an object of "Type" is found + * Context - Passed to user function + * return_value - from the user_function if terminated early. + * Otherwise, returns NULL. + * RETURNS: Status + * + * DESCRIPTION: Performs a modified depth-first walk of the namespace tree, + * starting (and ending) at the node specified by start_handle. + * The user_function is called whenever a node that matches + * the type parameter is found. If the user function returns + * a non-zero value, the search is terminated immediately and this + * value is returned to the caller. + * + * The point of this procedure is to provide a generic namespace + * walk routine that can be called from multiple places to + * provide multiple services; the User Function can be tailored + * to each task, whether it is a print function, a compare + * function, etc. + * + ******************************************************************************/ + +acpi_status +acpi_ns_walk_namespace(acpi_object_type type, + acpi_handle start_node, + u32 max_depth, + u32 flags, + acpi_walk_callback user_function, + void *context, void **return_value) +{ + acpi_status status; + acpi_status mutex_status; + struct acpi_namespace_node *child_node; + struct acpi_namespace_node *parent_node; + acpi_object_type child_type; + u32 level; + + ACPI_FUNCTION_TRACE(ns_walk_namespace); + + /* Special case for the namespace Root Node */ + + if (start_node == ACPI_ROOT_OBJECT) { + start_node = acpi_gbl_root_node; + } + + /* Null child means "get first node" */ + + parent_node = start_node; + child_node = NULL; + child_type = ACPI_TYPE_ANY; + level = 1; + + /* + * Traverse the tree of nodes until we bubble back up to where we + * started. When Level is zero, the loop is done because we have + * bubbled up to (and passed) the original parent handle (start_entry) + */ + while (level > 0) { + + /* Get the next node in this scope. Null if not found */ + + status = AE_OK; + child_node = + acpi_ns_get_next_node(ACPI_TYPE_ANY, parent_node, + child_node); + if (child_node) { + + /* Found next child, get the type if we are not searching for ANY */ + + if (type != ACPI_TYPE_ANY) { + child_type = child_node->type; + } + + /* + * Ignore all temporary namespace nodes (created during control + * method execution) unless told otherwise. These temporary nodes + * can cause a race condition because they can be deleted during the + * execution of the user function (if the namespace is unlocked before + * invocation of the user function.) Only the debugger namespace dump + * will examine the temporary nodes. + */ + if ((child_node->flags & ANOBJ_TEMPORARY) && + !(flags & ACPI_NS_WALK_TEMP_NODES)) { + status = AE_CTRL_DEPTH; + } + + /* Type must match requested type */ + + else if (child_type == type) { + /* + * Found a matching node, invoke the user callback function. + * Unlock the namespace if flag is set. + */ + if (flags & ACPI_NS_WALK_UNLOCK) { + mutex_status = + acpi_ut_release_mutex + (ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(mutex_status)) { + return_ACPI_STATUS + (mutex_status); + } + } + + status = + user_function(child_node, level, context, + return_value); + + if (flags & ACPI_NS_WALK_UNLOCK) { + mutex_status = + acpi_ut_acquire_mutex + (ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(mutex_status)) { + return_ACPI_STATUS + (mutex_status); + } + } + + switch (status) { + case AE_OK: + case AE_CTRL_DEPTH: + + /* Just keep going */ + break; + + case AE_CTRL_TERMINATE: + + /* Exit now, with OK status */ + + return_ACPI_STATUS(AE_OK); + + default: + + /* All others are valid exceptions */ + + return_ACPI_STATUS(status); + } + } + + /* + * Depth first search: Attempt to go down another level in the + * namespace if we are allowed to. Don't go any further if we have + * reached the caller specified maximum depth or if the user + * function has specified that the maximum depth has been reached. + */ + if ((level < max_depth) && (status != AE_CTRL_DEPTH)) { + if (acpi_ns_get_next_node + (ACPI_TYPE_ANY, child_node, NULL)) { + + /* There is at least one child of this node, visit it */ + + level++; + parent_node = child_node; + child_node = NULL; + } + } + } else { + /* + * No more children of this node (acpi_ns_get_next_node failed), go + * back upwards in the namespace tree to the node's parent. + */ + level--; + child_node = parent_node; + parent_node = acpi_ns_get_parent_node(parent_node); + } + } + + /* Complete walk, not terminated by user function */ + + return_ACPI_STATUS(AE_OK); +} diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c new file mode 100644 index 000000000000..598393a04e5f --- /dev/null +++ b/drivers/acpi/acpica/nsxfeval.c @@ -0,0 +1,812 @@ +/******************************************************************************* + * + * Module Name: nsxfeval - Public interfaces to the ACPI subsystem + * ACPI Object evaluation interfaces + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include + +#define _COMPONENT ACPI_NAMESPACE +ACPI_MODULE_NAME("nsxfeval") + +/* Local prototypes */ +static void acpi_ns_resolve_references(struct acpi_evaluate_info *info); + +#ifdef ACPI_FUTURE_USAGE +/******************************************************************************* + * + * FUNCTION: acpi_evaluate_object_typed + * + * PARAMETERS: Handle - Object handle (optional) + * Pathname - Object pathname (optional) + * external_params - List of parameters to pass to method, + * terminated by NULL. May be NULL + * if no parameters are being passed. + * return_buffer - Where to put method's return value (if + * any). If NULL, no value is returned. + * return_type - Expected type of return object + * + * RETURN: Status + * + * DESCRIPTION: Find and evaluate the given object, passing the given + * parameters if necessary. One of "Handle" or "Pathname" must + * be valid (non-null) + * + ******************************************************************************/ + +acpi_status +acpi_evaluate_object_typed(acpi_handle handle, + acpi_string pathname, + struct acpi_object_list *external_params, + struct acpi_buffer *return_buffer, + acpi_object_type return_type) +{ + acpi_status status; + u8 must_free = FALSE; + + ACPI_FUNCTION_TRACE(acpi_evaluate_object_typed); + + /* Return buffer must be valid */ + + if (!return_buffer) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + if (return_buffer->length == ACPI_ALLOCATE_BUFFER) { + must_free = TRUE; + } + + /* Evaluate the object */ + + status = + acpi_evaluate_object(handle, pathname, external_params, + return_buffer); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Type ANY means "don't care" */ + + if (return_type == ACPI_TYPE_ANY) { + return_ACPI_STATUS(AE_OK); + } + + if (return_buffer->length == 0) { + + /* Error because caller specifically asked for a return value */ + + ACPI_ERROR((AE_INFO, "No return value")); + return_ACPI_STATUS(AE_NULL_OBJECT); + } + + /* Examine the object type returned from evaluate_object */ + + if (((union acpi_object *)return_buffer->pointer)->type == return_type) { + return_ACPI_STATUS(AE_OK); + } + + /* Return object type does not match requested type */ + + ACPI_ERROR((AE_INFO, + "Incorrect return type [%s] requested [%s]", + acpi_ut_get_type_name(((union acpi_object *)return_buffer-> + pointer)->type), + acpi_ut_get_type_name(return_type))); + + if (must_free) { + + /* Caller used ACPI_ALLOCATE_BUFFER, free the return buffer */ + + ACPI_FREE(return_buffer->pointer); + return_buffer->pointer = NULL; + } + + return_buffer->length = 0; + return_ACPI_STATUS(AE_TYPE); +} + +ACPI_EXPORT_SYMBOL(acpi_evaluate_object_typed) +#endif /* ACPI_FUTURE_USAGE */ +/******************************************************************************* + * + * FUNCTION: acpi_evaluate_object + * + * PARAMETERS: Handle - Object handle (optional) + * Pathname - Object pathname (optional) + * external_params - List of parameters to pass to method, + * terminated by NULL. May be NULL + * if no parameters are being passed. + * return_buffer - Where to put method's return value (if + * any). If NULL, no value is returned. + * + * RETURN: Status + * + * DESCRIPTION: Find and evaluate the given object, passing the given + * parameters if necessary. One of "Handle" or "Pathname" must + * be valid (non-null) + * + ******************************************************************************/ +acpi_status +acpi_evaluate_object(acpi_handle handle, + acpi_string pathname, + struct acpi_object_list *external_params, + struct acpi_buffer *return_buffer) +{ + acpi_status status; + struct acpi_evaluate_info *info; + acpi_size buffer_space_needed; + u32 i; + + ACPI_FUNCTION_TRACE(acpi_evaluate_object); + + /* Allocate and initialize the evaluation information block */ + + info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info)); + if (!info) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + info->pathname = pathname; + + /* Convert and validate the device handle */ + + info->prefix_node = acpi_ns_map_handle_to_node(handle); + if (!info->prefix_node) { + status = AE_BAD_PARAMETER; + goto cleanup; + } + + /* + * If there are parameters to be passed to a control method, the external + * objects must all be converted to internal objects + */ + if (external_params && external_params->count) { + /* + * Allocate a new parameter block for the internal objects + * Add 1 to count to allow for null terminated internal list + */ + info->parameters = ACPI_ALLOCATE_ZEROED(((acpi_size) + external_params-> + count + + 1) * sizeof(void *)); + if (!info->parameters) { + status = AE_NO_MEMORY; + goto cleanup; + } + + /* Convert each external object in the list to an internal object */ + + for (i = 0; i < external_params->count; i++) { + status = + acpi_ut_copy_eobject_to_iobject(&external_params-> + pointer[i], + &info-> + parameters[i]); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + } + info->parameters[external_params->count] = NULL; + } + + /* + * Three major cases: + * 1) Fully qualified pathname + * 2) No handle, not fully qualified pathname (error) + * 3) Valid handle + */ + if ((pathname) && (acpi_ns_valid_root_prefix(pathname[0]))) { + + /* The path is fully qualified, just evaluate by name */ + + info->prefix_node = NULL; + status = acpi_ns_evaluate(info); + } else if (!handle) { + /* + * A handle is optional iff a fully qualified pathname is specified. + * Since we've already handled fully qualified names above, this is + * an error + */ + if (!pathname) { + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Both Handle and Pathname are NULL")); + } else { + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Null Handle with relative pathname [%s]", + pathname)); + } + + status = AE_BAD_PARAMETER; + } else { + /* We have a namespace a node and a possible relative path */ + + status = acpi_ns_evaluate(info); + } + + /* + * If we are expecting a return value, and all went well above, + * copy the return value to an external object. + */ + if (return_buffer) { + if (!info->return_object) { + return_buffer->length = 0; + } else { + if (ACPI_GET_DESCRIPTOR_TYPE(info->return_object) == + ACPI_DESC_TYPE_NAMED) { + /* + * If we received a NS Node as a return object, this means that + * the object we are evaluating has nothing interesting to + * return (such as a mutex, etc.) We return an error because + * these types are essentially unsupported by this interface. + * We don't check up front because this makes it easier to add + * support for various types at a later date if necessary. + */ + status = AE_TYPE; + info->return_object = NULL; /* No need to delete a NS Node */ + return_buffer->length = 0; + } + + if (ACPI_SUCCESS(status)) { + + /* Dereference Index and ref_of references */ + + acpi_ns_resolve_references(info); + + /* Get the size of the returned object */ + + status = + acpi_ut_get_object_size(info->return_object, + &buffer_space_needed); + if (ACPI_SUCCESS(status)) { + + /* Validate/Allocate/Clear caller buffer */ + + status = + acpi_ut_initialize_buffer + (return_buffer, + buffer_space_needed); + if (ACPI_FAILURE(status)) { + /* + * Caller's buffer is too small or a new one can't + * be allocated + */ + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Needed buffer size %X, %s\n", + (u32) + buffer_space_needed, + acpi_format_exception + (status))); + } else { + /* We have enough space for the object, build it */ + + status = + acpi_ut_copy_iobject_to_eobject + (info->return_object, + return_buffer); + } + } + } + } + } + + if (info->return_object) { + /* + * Delete the internal return object. NOTE: Interpreter must be + * locked to avoid race condition. + */ + acpi_ex_enter_interpreter(); + + /* Remove one reference on the return object (should delete it) */ + + acpi_ut_remove_reference(info->return_object); + acpi_ex_exit_interpreter(); + } + + cleanup: + + /* Free the input parameter list (if we created one) */ + + if (info->parameters) { + + /* Free the allocated parameter block */ + + acpi_ut_delete_internal_object_list(info->parameters); + } + + ACPI_FREE(info); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_evaluate_object) + +/******************************************************************************* + * + * FUNCTION: acpi_ns_resolve_references + * + * PARAMETERS: Info - Evaluation info block + * + * RETURN: Info->return_object is replaced with the dereferenced object + * + * DESCRIPTION: Dereference certain reference objects. Called before an + * internal return object is converted to an external union acpi_object. + * + * Performs an automatic dereference of Index and ref_of reference objects. + * These reference objects are not supported by the union acpi_object, so this is a + * last resort effort to return something useful. Also, provides compatibility + * with other ACPI implementations. + * + * NOTE: does not handle references within returned package objects or nested + * references, but this support could be added later if found to be necessary. + * + ******************************************************************************/ +static void acpi_ns_resolve_references(struct acpi_evaluate_info *info) +{ + union acpi_operand_object *obj_desc = NULL; + struct acpi_namespace_node *node; + + /* We are interested in reference objects only */ + + if (ACPI_GET_OBJECT_TYPE(info->return_object) != + ACPI_TYPE_LOCAL_REFERENCE) { + return; + } + + /* + * Two types of references are supported - those created by Index and + * ref_of operators. A name reference (AML_NAMEPATH_OP) can be converted + * to an union acpi_object, so it is not dereferenced here. A ddb_handle + * (AML_LOAD_OP) cannot be dereferenced, nor can it be converted to + * an union acpi_object. + */ + switch (info->return_object->reference.class) { + case ACPI_REFCLASS_INDEX: + + obj_desc = *(info->return_object->reference.where); + break; + + case ACPI_REFCLASS_REFOF: + + node = info->return_object->reference.object; + if (node) { + obj_desc = node->object; + } + break; + + default: + return; + } + + /* Replace the existing reference object */ + + if (obj_desc) { + acpi_ut_add_reference(obj_desc); + acpi_ut_remove_reference(info->return_object); + info->return_object = obj_desc; + } + + return; +} + +/******************************************************************************* + * + * FUNCTION: acpi_walk_namespace + * + * PARAMETERS: Type - acpi_object_type to search for + * start_object - Handle in namespace where search begins + * max_depth - Depth to which search is to reach + * user_function - Called when an object of "Type" is found + * Context - Passed to user function + * return_value - Location where return value of + * user_function is put if terminated early + * + * RETURNS Return value from the user_function if terminated early. + * Otherwise, returns NULL. + * + * DESCRIPTION: Performs a modified depth-first walk of the namespace tree, + * starting (and ending) at the object specified by start_handle. + * The user_function is called whenever an object that matches + * the type parameter is found. If the user function returns + * a non-zero value, the search is terminated immediately and this + * value is returned to the caller. + * + * The point of this procedure is to provide a generic namespace + * walk routine that can be called from multiple places to + * provide multiple services; the User Function can be tailored + * to each task, whether it is a print function, a compare + * function, etc. + * + ******************************************************************************/ + +acpi_status +acpi_walk_namespace(acpi_object_type type, + acpi_handle start_object, + u32 max_depth, + acpi_walk_callback user_function, + void *context, void **return_value) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_walk_namespace); + + /* Parameter validation */ + + if ((type > ACPI_TYPE_LOCAL_MAX) || (!max_depth) || (!user_function)) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* + * Lock the namespace around the walk. + * The namespace will be unlocked/locked around each call + * to the user function - since this function + * must be allowed to make Acpi calls itself. + */ + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + status = acpi_ns_walk_namespace(type, start_object, max_depth, + ACPI_NS_WALK_UNLOCK, + user_function, context, return_value); + + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_walk_namespace) + +/******************************************************************************* + * + * FUNCTION: acpi_ns_get_device_callback + * + * PARAMETERS: Callback from acpi_get_device + * + * RETURN: Status + * + * DESCRIPTION: Takes callbacks from walk_namespace and filters out all non- + * present devices, or if they specified a HID, it filters based + * on that. + * + ******************************************************************************/ +static acpi_status +acpi_ns_get_device_callback(acpi_handle obj_handle, + u32 nesting_level, + void *context, void **return_value) +{ + struct acpi_get_devices_info *info = context; + acpi_status status; + struct acpi_namespace_node *node; + u32 flags; + struct acpica_device_id hid; + struct acpi_compatible_id_list *cid; + u32 i; + int found; + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return (status); + } + + node = acpi_ns_map_handle_to_node(obj_handle); + status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return (status); + } + + if (!node) { + return (AE_BAD_PARAMETER); + } + + /* Run _STA to determine if device is present */ + + status = acpi_ut_execute_STA(node, &flags); + if (ACPI_FAILURE(status)) { + return (AE_CTRL_DEPTH); + } + + if (!(flags & ACPI_STA_DEVICE_PRESENT) && + !(flags & ACPI_STA_DEVICE_FUNCTIONING)) { + /* + * Don't examine the children of the device only when the + * device is neither present nor functional. See ACPI spec, + * description of _STA for more information. + */ + return (AE_CTRL_DEPTH); + } + + /* Filter based on device HID & CID */ + + if (info->hid != NULL) { + status = acpi_ut_execute_HID(node, &hid); + if (status == AE_NOT_FOUND) { + return (AE_OK); + } else if (ACPI_FAILURE(status)) { + return (AE_CTRL_DEPTH); + } + + if (ACPI_STRNCMP(hid.value, info->hid, sizeof(hid.value)) != 0) { + + /* Get the list of Compatible IDs */ + + status = acpi_ut_execute_CID(node, &cid); + if (status == AE_NOT_FOUND) { + return (AE_OK); + } else if (ACPI_FAILURE(status)) { + return (AE_CTRL_DEPTH); + } + + /* Walk the CID list */ + + found = 0; + for (i = 0; i < cid->count; i++) { + if (ACPI_STRNCMP(cid->id[i].value, info->hid, + sizeof(struct + acpi_compatible_id)) == + 0) { + found = 1; + break; + } + } + ACPI_FREE(cid); + if (!found) + return (AE_OK); + } + } + + status = info->user_function(obj_handle, nesting_level, info->context, + return_value); + return (status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_get_devices + * + * PARAMETERS: HID - HID to search for. Can be NULL. + * user_function - Called when a matching object is found + * Context - Passed to user function + * return_value - Location where return value of + * user_function is put if terminated early + * + * RETURNS Return value from the user_function if terminated early. + * Otherwise, returns NULL. + * + * DESCRIPTION: Performs a modified depth-first walk of the namespace tree, + * starting (and ending) at the object specified by start_handle. + * The user_function is called whenever an object of type + * Device is found. If the user function returns + * a non-zero value, the search is terminated immediately and this + * value is returned to the caller. + * + * This is a wrapper for walk_namespace, but the callback performs + * additional filtering. Please see acpi_ns_get_device_callback. + * + ******************************************************************************/ + +acpi_status +acpi_get_devices(const char *HID, + acpi_walk_callback user_function, + void *context, void **return_value) +{ + acpi_status status; + struct acpi_get_devices_info info; + + ACPI_FUNCTION_TRACE(acpi_get_devices); + + /* Parameter validation */ + + if (!user_function) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* + * We're going to call their callback from OUR callback, so we need + * to know what it is, and their context parameter. + */ + info.hid = HID; + info.context = context; + info.user_function = user_function; + + /* + * Lock the namespace around the walk. + * The namespace will be unlocked/locked around each call + * to the user function - since this function + * must be allowed to make Acpi calls itself. + */ + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + status = acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, + ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK, + acpi_ns_get_device_callback, &info, + return_value); + + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_get_devices) + +/******************************************************************************* + * + * FUNCTION: acpi_attach_data + * + * PARAMETERS: obj_handle - Namespace node + * Handler - Handler for this attachment + * Data - Pointer to data to be attached + * + * RETURN: Status + * + * DESCRIPTION: Attach arbitrary data and handler to a namespace node. + * + ******************************************************************************/ +acpi_status +acpi_attach_data(acpi_handle obj_handle, + acpi_object_handler handler, void *data) +{ + struct acpi_namespace_node *node; + acpi_status status; + + /* Parameter validation */ + + if (!obj_handle || !handler || !data) { + return (AE_BAD_PARAMETER); + } + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* Convert and validate the handle */ + + node = acpi_ns_map_handle_to_node(obj_handle); + if (!node) { + status = AE_BAD_PARAMETER; + goto unlock_and_exit; + } + + status = acpi_ns_attach_data(node, handler, data); + + unlock_and_exit: + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + return (status); +} + +ACPI_EXPORT_SYMBOL(acpi_attach_data) + +/******************************************************************************* + * + * FUNCTION: acpi_detach_data + * + * PARAMETERS: obj_handle - Namespace node handle + * Handler - Handler used in call to acpi_attach_data + * + * RETURN: Status + * + * DESCRIPTION: Remove data that was previously attached to a node. + * + ******************************************************************************/ +acpi_status +acpi_detach_data(acpi_handle obj_handle, acpi_object_handler handler) +{ + struct acpi_namespace_node *node; + acpi_status status; + + /* Parameter validation */ + + if (!obj_handle || !handler) { + return (AE_BAD_PARAMETER); + } + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* Convert and validate the handle */ + + node = acpi_ns_map_handle_to_node(obj_handle); + if (!node) { + status = AE_BAD_PARAMETER; + goto unlock_and_exit; + } + + status = acpi_ns_detach_data(node, handler); + + unlock_and_exit: + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + return (status); +} + +ACPI_EXPORT_SYMBOL(acpi_detach_data) + +/******************************************************************************* + * + * FUNCTION: acpi_get_data + * + * PARAMETERS: obj_handle - Namespace node + * Handler - Handler used in call to attach_data + * Data - Where the data is returned + * + * RETURN: Status + * + * DESCRIPTION: Retrieve data that was previously attached to a namespace node. + * + ******************************************************************************/ +acpi_status +acpi_get_data(acpi_handle obj_handle, acpi_object_handler handler, void **data) +{ + struct acpi_namespace_node *node; + acpi_status status; + + /* Parameter validation */ + + if (!obj_handle || !handler || !data) { + return (AE_BAD_PARAMETER); + } + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* Convert and validate the handle */ + + node = acpi_ns_map_handle_to_node(obj_handle); + if (!node) { + status = AE_BAD_PARAMETER; + goto unlock_and_exit; + } + + status = acpi_ns_get_attached_data(node, handler, data); + + unlock_and_exit: + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + return (status); +} + +ACPI_EXPORT_SYMBOL(acpi_get_data) diff --git a/drivers/acpi/acpica/nsxfname.c b/drivers/acpi/acpica/nsxfname.c new file mode 100644 index 000000000000..7d5bfa9e9fe9 --- /dev/null +++ b/drivers/acpi/acpica/nsxfname.c @@ -0,0 +1,360 @@ +/****************************************************************************** + * + * Module Name: nsxfname - Public interfaces to the ACPI subsystem + * ACPI Namespace oriented interfaces + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_NAMESPACE +ACPI_MODULE_NAME("nsxfname") + +/****************************************************************************** + * + * FUNCTION: acpi_get_handle + * + * PARAMETERS: Parent - Object to search under (search scope). + * Pathname - Pointer to an asciiz string containing the + * name + * ret_handle - Where the return handle is returned + * + * RETURN: Status + * + * DESCRIPTION: This routine will search for a caller specified name in the + * name space. The caller can restrict the search region by + * specifying a non NULL parent. The parent value is itself a + * namespace handle. + * + ******************************************************************************/ +acpi_status +acpi_get_handle(acpi_handle parent, + acpi_string pathname, acpi_handle * ret_handle) +{ + acpi_status status; + struct acpi_namespace_node *node = NULL; + struct acpi_namespace_node *prefix_node = NULL; + + ACPI_FUNCTION_ENTRY(); + + /* Parameter Validation */ + + if (!ret_handle || !pathname) { + return (AE_BAD_PARAMETER); + } + + /* Convert a parent handle to a prefix node */ + + if (parent) { + prefix_node = acpi_ns_map_handle_to_node(parent); + if (!prefix_node) { + return (AE_BAD_PARAMETER); + } + } + + /* + * Valid cases are: + * 1) Fully qualified pathname + * 2) Parent + Relative pathname + * + * Error for + */ + if (acpi_ns_valid_root_prefix(pathname[0])) { + + /* Pathname is fully qualified (starts with '\') */ + + /* Special case for root-only, since we can't search for it */ + + if (!ACPI_STRCMP(pathname, ACPI_NS_ROOT_PATH)) { + *ret_handle = + acpi_ns_convert_entry_to_handle(acpi_gbl_root_node); + return (AE_OK); + } + } else if (!prefix_node) { + + /* Relative path with null prefix is disallowed */ + + return (AE_BAD_PARAMETER); + } + + /* Find the Node and convert to a handle */ + + status = + acpi_ns_get_node(prefix_node, pathname, ACPI_NS_NO_UPSEARCH, &node); + if (ACPI_SUCCESS(status)) { + *ret_handle = acpi_ns_convert_entry_to_handle(node); + } + + return (status); +} + +ACPI_EXPORT_SYMBOL(acpi_get_handle) + +/****************************************************************************** + * + * FUNCTION: acpi_get_name + * + * PARAMETERS: Handle - Handle to be converted to a pathname + * name_type - Full pathname or single segment + * Buffer - Buffer for returned path + * + * RETURN: Pointer to a string containing the fully qualified Name. + * + * DESCRIPTION: This routine returns the fully qualified name associated with + * the Handle parameter. This and the acpi_pathname_to_handle are + * complementary functions. + * + ******************************************************************************/ +acpi_status +acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer) +{ + acpi_status status; + struct acpi_namespace_node *node; + + /* Parameter validation */ + + if (name_type > ACPI_NAME_TYPE_MAX) { + return (AE_BAD_PARAMETER); + } + + status = acpi_ut_validate_buffer(buffer); + if (ACPI_FAILURE(status)) { + return (status); + } + + if (name_type == ACPI_FULL_PATHNAME) { + + /* Get the full pathname (From the namespace root) */ + + status = acpi_ns_handle_to_pathname(handle, buffer); + return (status); + } + + /* + * Wants the single segment ACPI name. + * Validate handle and convert to a namespace Node + */ + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return (status); + } + + node = acpi_ns_map_handle_to_node(handle); + if (!node) { + status = AE_BAD_PARAMETER; + goto unlock_and_exit; + } + + /* Validate/Allocate/Clear caller buffer */ + + status = acpi_ut_initialize_buffer(buffer, ACPI_PATH_SEGMENT_LENGTH); + if (ACPI_FAILURE(status)) { + goto unlock_and_exit; + } + + /* Just copy the ACPI name from the Node and zero terminate it */ + + ACPI_STRNCPY(buffer->pointer, acpi_ut_get_node_name(node), + ACPI_NAME_SIZE); + ((char *)buffer->pointer)[ACPI_NAME_SIZE] = 0; + status = AE_OK; + + unlock_and_exit: + + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + return (status); +} + +ACPI_EXPORT_SYMBOL(acpi_get_name) + +/****************************************************************************** + * + * FUNCTION: acpi_get_object_info + * + * PARAMETERS: Handle - Object Handle + * Buffer - Where the info is returned + * + * RETURN: Status + * + * DESCRIPTION: Returns information about an object as gleaned from the + * namespace node and possibly by running several standard + * control methods (Such as in the case of a device.) + * + ******************************************************************************/ +acpi_status +acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer) +{ + acpi_status status; + struct acpi_namespace_node *node; + struct acpi_device_info *info; + struct acpi_device_info *return_info; + struct acpi_compatible_id_list *cid_list = NULL; + acpi_size size; + + /* Parameter validation */ + + if (!handle || !buffer) { + return (AE_BAD_PARAMETER); + } + + status = acpi_ut_validate_buffer(buffer); + if (ACPI_FAILURE(status)) { + return (status); + } + + info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_device_info)); + if (!info) { + return (AE_NO_MEMORY); + } + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + node = acpi_ns_map_handle_to_node(handle); + if (!node) { + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + status = AE_BAD_PARAMETER; + goto cleanup; + } + + /* Init return structure */ + + size = sizeof(struct acpi_device_info); + + info->type = node->type; + info->name = node->name.integer; + info->valid = 0; + + if (node->type == ACPI_TYPE_METHOD) { + info->param_count = node->object->method.param_count; + } + + status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + /* If not a device, we are all done */ + + if (info->type == ACPI_TYPE_DEVICE) { + /* + * Get extra info for ACPI Devices objects only: + * Run the Device _HID, _UID, _CID, _STA, _ADR and _sx_d methods. + * + * Note: none of these methods are required, so they may or may + * not be present for this device. The Info->Valid bitfield is used + * to indicate which methods were found and ran successfully. + */ + + /* Execute the Device._HID method */ + + status = acpi_ut_execute_HID(node, &info->hardware_id); + if (ACPI_SUCCESS(status)) { + info->valid |= ACPI_VALID_HID; + } + + /* Execute the Device._UID method */ + + status = acpi_ut_execute_UID(node, &info->unique_id); + if (ACPI_SUCCESS(status)) { + info->valid |= ACPI_VALID_UID; + } + + /* Execute the Device._CID method */ + + status = acpi_ut_execute_CID(node, &cid_list); + if (ACPI_SUCCESS(status)) { + size += cid_list->size; + info->valid |= ACPI_VALID_CID; + } + + /* Execute the Device._STA method */ + + status = acpi_ut_execute_STA(node, &info->current_status); + if (ACPI_SUCCESS(status)) { + info->valid |= ACPI_VALID_STA; + } + + /* Execute the Device._ADR method */ + + status = acpi_ut_evaluate_numeric_object(METHOD_NAME__ADR, node, + &info->address); + if (ACPI_SUCCESS(status)) { + info->valid |= ACPI_VALID_ADR; + } + + /* Execute the Device._sx_d methods */ + + status = acpi_ut_execute_sxds(node, info->highest_dstates); + if (ACPI_SUCCESS(status)) { + info->valid |= ACPI_VALID_SXDS; + } + } + + /* Validate/Allocate/Clear caller buffer */ + + status = acpi_ut_initialize_buffer(buffer, size); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + /* Populate the return buffer */ + + return_info = buffer->pointer; + ACPI_MEMCPY(return_info, info, sizeof(struct acpi_device_info)); + + if (cid_list) { + ACPI_MEMCPY(&return_info->compatibility_id, cid_list, + cid_list->size); + } + + cleanup: + ACPI_FREE(info); + if (cid_list) { + ACPI_FREE(cid_list); + } + return (status); +} + +ACPI_EXPORT_SYMBOL(acpi_get_object_info) diff --git a/drivers/acpi/acpica/nsxfobj.c b/drivers/acpi/acpica/nsxfobj.c new file mode 100644 index 000000000000..80e6322d59c5 --- /dev/null +++ b/drivers/acpi/acpica/nsxfobj.c @@ -0,0 +1,287 @@ +/******************************************************************************* + * + * Module Name: nsxfobj - Public interfaces to the ACPI subsystem + * ACPI Object oriented interfaces + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_NAMESPACE +ACPI_MODULE_NAME("nsxfobj") + +/******************************************************************************* + * + * FUNCTION: acpi_get_id + * + * PARAMETERS: Handle - Handle of object whose id is desired + * ret_id - Where the id will be placed + * + * RETURN: Status + * + * DESCRIPTION: This routine returns the owner id associated with a handle + * + ******************************************************************************/ +acpi_status acpi_get_id(acpi_handle handle, acpi_owner_id * ret_id) +{ + struct acpi_namespace_node *node; + acpi_status status; + + /* Parameter Validation */ + + if (!ret_id) { + return (AE_BAD_PARAMETER); + } + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* Convert and validate the handle */ + + node = acpi_ns_map_handle_to_node(handle); + if (!node) { + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + return (AE_BAD_PARAMETER); + } + + *ret_id = node->owner_id; + + status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + return (status); +} + +ACPI_EXPORT_SYMBOL(acpi_get_id) + +/******************************************************************************* + * + * FUNCTION: acpi_get_type + * + * PARAMETERS: Handle - Handle of object whose type is desired + * ret_type - Where the type will be placed + * + * RETURN: Status + * + * DESCRIPTION: This routine returns the type associatd with a particular handle + * + ******************************************************************************/ +acpi_status acpi_get_type(acpi_handle handle, acpi_object_type * ret_type) +{ + struct acpi_namespace_node *node; + acpi_status status; + + /* Parameter Validation */ + + if (!ret_type) { + return (AE_BAD_PARAMETER); + } + + /* + * Special case for the predefined Root Node + * (return type ANY) + */ + if (handle == ACPI_ROOT_OBJECT) { + *ret_type = ACPI_TYPE_ANY; + return (AE_OK); + } + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* Convert and validate the handle */ + + node = acpi_ns_map_handle_to_node(handle); + if (!node) { + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + return (AE_BAD_PARAMETER); + } + + *ret_type = node->type; + + status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + return (status); +} + +ACPI_EXPORT_SYMBOL(acpi_get_type) + +/******************************************************************************* + * + * FUNCTION: acpi_get_parent + * + * PARAMETERS: Handle - Handle of object whose parent is desired + * ret_handle - Where the parent handle will be placed + * + * RETURN: Status + * + * DESCRIPTION: Returns a handle to the parent of the object represented by + * Handle. + * + ******************************************************************************/ +acpi_status acpi_get_parent(acpi_handle handle, acpi_handle * ret_handle) +{ + struct acpi_namespace_node *node; + acpi_status status; + + if (!ret_handle) { + return (AE_BAD_PARAMETER); + } + + /* Special case for the predefined Root Node (no parent) */ + + if (handle == ACPI_ROOT_OBJECT) { + return (AE_NULL_ENTRY); + } + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* Convert and validate the handle */ + + node = acpi_ns_map_handle_to_node(handle); + if (!node) { + status = AE_BAD_PARAMETER; + goto unlock_and_exit; + } + + /* Get the parent entry */ + + *ret_handle = + acpi_ns_convert_entry_to_handle(acpi_ns_get_parent_node(node)); + + /* Return exception if parent is null */ + + if (!acpi_ns_get_parent_node(node)) { + status = AE_NULL_ENTRY; + } + + unlock_and_exit: + + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + return (status); +} + +ACPI_EXPORT_SYMBOL(acpi_get_parent) + +/******************************************************************************* + * + * FUNCTION: acpi_get_next_object + * + * PARAMETERS: Type - Type of object to be searched for + * Parent - Parent object whose children we are getting + * last_child - Previous child that was found. + * The NEXT child will be returned + * ret_handle - Where handle to the next object is placed + * + * RETURN: Status + * + * DESCRIPTION: Return the next peer object within the namespace. If Handle is + * valid, Scope is ignored. Otherwise, the first object within + * Scope is returned. + * + ******************************************************************************/ +acpi_status +acpi_get_next_object(acpi_object_type type, + acpi_handle parent, + acpi_handle child, acpi_handle * ret_handle) +{ + acpi_status status; + struct acpi_namespace_node *node; + struct acpi_namespace_node *parent_node = NULL; + struct acpi_namespace_node *child_node = NULL; + + /* Parameter validation */ + + if (type > ACPI_TYPE_EXTERNAL_MAX) { + return (AE_BAD_PARAMETER); + } + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* If null handle, use the parent */ + + if (!child) { + + /* Start search at the beginning of the specified scope */ + + parent_node = acpi_ns_map_handle_to_node(parent); + if (!parent_node) { + status = AE_BAD_PARAMETER; + goto unlock_and_exit; + } + } else { + /* Non-null handle, ignore the parent */ + /* Convert and validate the handle */ + + child_node = acpi_ns_map_handle_to_node(child); + if (!child_node) { + status = AE_BAD_PARAMETER; + goto unlock_and_exit; + } + } + + /* Internal function does the real work */ + + node = acpi_ns_get_next_node(type, parent_node, child_node); + if (!node) { + status = AE_NOT_FOUND; + goto unlock_and_exit; + } + + if (ret_handle) { + *ret_handle = acpi_ns_convert_entry_to_handle(node); + } + + unlock_and_exit: + + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + return (status); +} + +ACPI_EXPORT_SYMBOL(acpi_get_next_object) diff --git a/drivers/acpi/acpica/psargs.c b/drivers/acpi/acpica/psargs.c new file mode 100644 index 000000000000..852f3a83b2e6 --- /dev/null +++ b/drivers/acpi/acpica/psargs.c @@ -0,0 +1,752 @@ +/****************************************************************************** + * + * Module Name: psargs - Parse AML opcode arguments + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_PARSER +ACPI_MODULE_NAME("psargs") + +/* Local prototypes */ +static u32 +acpi_ps_get_next_package_length(struct acpi_parse_state *parser_state); + +static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state + *parser_state); + +/******************************************************************************* + * + * FUNCTION: acpi_ps_get_next_package_length + * + * PARAMETERS: parser_state - Current parser state object + * + * RETURN: Decoded package length. On completion, the AML pointer points + * past the length byte or bytes. + * + * DESCRIPTION: Decode and return a package length field. + * Note: Largest package length is 28 bits, from ACPI specification + * + ******************************************************************************/ + +static u32 +acpi_ps_get_next_package_length(struct acpi_parse_state *parser_state) +{ + u8 *aml = parser_state->aml; + u32 package_length = 0; + u32 byte_count; + u8 byte_zero_mask = 0x3F; /* Default [0:5] */ + + ACPI_FUNCTION_TRACE(ps_get_next_package_length); + + /* + * Byte 0 bits [6:7] contain the number of additional bytes + * used to encode the package length, either 0,1,2, or 3 + */ + byte_count = (aml[0] >> 6); + parser_state->aml += ((acpi_size) byte_count + 1); + + /* Get bytes 3, 2, 1 as needed */ + + while (byte_count) { + /* + * Final bit positions for the package length bytes: + * Byte3->[20:27] + * Byte2->[12:19] + * Byte1->[04:11] + * Byte0->[00:03] + */ + package_length |= (aml[byte_count] << ((byte_count << 3) - 4)); + + byte_zero_mask = 0x0F; /* Use bits [0:3] of byte 0 */ + byte_count--; + } + + /* Byte 0 is a special case, either bits [0:3] or [0:5] are used */ + + package_length |= (aml[0] & byte_zero_mask); + return_UINT32(package_length); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_get_next_package_end + * + * PARAMETERS: parser_state - Current parser state object + * + * RETURN: Pointer to end-of-package +1 + * + * DESCRIPTION: Get next package length and return a pointer past the end of + * the package. Consumes the package length field + * + ******************************************************************************/ + +u8 *acpi_ps_get_next_package_end(struct acpi_parse_state *parser_state) +{ + u8 *start = parser_state->aml; + u32 package_length; + + ACPI_FUNCTION_TRACE(ps_get_next_package_end); + + /* Function below updates parser_state->Aml */ + + package_length = acpi_ps_get_next_package_length(parser_state); + + return_PTR(start + package_length); /* end of package */ +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_get_next_namestring + * + * PARAMETERS: parser_state - Current parser state object + * + * RETURN: Pointer to the start of the name string (pointer points into + * the AML. + * + * DESCRIPTION: Get next raw namestring within the AML stream. Handles all name + * prefix characters. Set parser state to point past the string. + * (Name is consumed from the AML.) + * + ******************************************************************************/ + +char *acpi_ps_get_next_namestring(struct acpi_parse_state *parser_state) +{ + u8 *start = parser_state->aml; + u8 *end = parser_state->aml; + + ACPI_FUNCTION_TRACE(ps_get_next_namestring); + + /* Point past any namestring prefix characters (backslash or carat) */ + + while (acpi_ps_is_prefix_char(*end)) { + end++; + } + + /* Decode the path prefix character */ + + switch (*end) { + case 0: + + /* null_name */ + + if (end == start) { + start = NULL; + } + end++; + break; + + case AML_DUAL_NAME_PREFIX: + + /* Two name segments */ + + end += 1 + (2 * ACPI_NAME_SIZE); + break; + + case AML_MULTI_NAME_PREFIX_OP: + + /* Multiple name segments, 4 chars each, count in next byte */ + + end += 2 + (*(end + 1) * ACPI_NAME_SIZE); + break; + + default: + + /* Single name segment */ + + end += ACPI_NAME_SIZE; + break; + } + + parser_state->aml = end; + return_PTR((char *)start); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_get_next_namepath + * + * PARAMETERS: parser_state - Current parser state object + * Arg - Where the namepath will be stored + * arg_count - If the namepath points to a control method + * the method's argument is returned here. + * possible_method_call - Whether the namepath can possibly be the + * start of a method call + * + * RETURN: Status + * + * DESCRIPTION: Get next name (if method call, return # of required args). + * Names are looked up in the internal namespace to determine + * if the name represents a control method. If a method + * is found, the number of arguments to the method is returned. + * This information is critical for parsing to continue correctly. + * + ******************************************************************************/ + +acpi_status +acpi_ps_get_next_namepath(struct acpi_walk_state *walk_state, + struct acpi_parse_state *parser_state, + union acpi_parse_object *arg, u8 possible_method_call) +{ + acpi_status status; + char *path; + union acpi_parse_object *name_op; + union acpi_operand_object *method_desc; + struct acpi_namespace_node *node; + u8 *start = parser_state->aml; + + ACPI_FUNCTION_TRACE(ps_get_next_namepath); + + path = acpi_ps_get_next_namestring(parser_state); + acpi_ps_init_op(arg, AML_INT_NAMEPATH_OP); + + /* Null path case is allowed, just exit */ + + if (!path) { + arg->common.value.name = path; + return_ACPI_STATUS(AE_OK); + } + + /* + * Lookup the name in the internal namespace, starting with the current + * scope. We don't want to add anything new to the namespace here, + * however, so we use MODE_EXECUTE. + * Allow searching of the parent tree, but don't open a new scope - + * we just want to lookup the object (must be mode EXECUTE to perform + * the upsearch) + */ + status = acpi_ns_lookup(walk_state->scope_info, path, + ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE, + ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, + NULL, &node); + + /* + * If this name is a control method invocation, we must + * setup the method call + */ + if (ACPI_SUCCESS(status) && + possible_method_call && (node->type == ACPI_TYPE_METHOD)) { + if (walk_state->opcode == AML_UNLOAD_OP) { + /* + * acpi_ps_get_next_namestring has increased the AML pointer, + * so we need to restore the saved AML pointer for method call. + */ + walk_state->parser_state.aml = start; + walk_state->arg_count = 1; + acpi_ps_init_op(arg, AML_INT_METHODCALL_OP); + return_ACPI_STATUS(AE_OK); + } + + /* This name is actually a control method invocation */ + + method_desc = acpi_ns_get_attached_object(node); + ACPI_DEBUG_PRINT((ACPI_DB_PARSE, + "Control Method - %p Desc %p Path=%p\n", node, + method_desc, path)); + + name_op = acpi_ps_alloc_op(AML_INT_NAMEPATH_OP); + if (!name_op) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* Change Arg into a METHOD CALL and attach name to it */ + + acpi_ps_init_op(arg, AML_INT_METHODCALL_OP); + name_op->common.value.name = path; + + /* Point METHODCALL/NAME to the METHOD Node */ + + name_op->common.node = node; + acpi_ps_append_arg(arg, name_op); + + if (!method_desc) { + ACPI_ERROR((AE_INFO, + "Control Method %p has no attached object", + node)); + return_ACPI_STATUS(AE_AML_INTERNAL); + } + + ACPI_DEBUG_PRINT((ACPI_DB_PARSE, + "Control Method - %p Args %X\n", + node, method_desc->method.param_count)); + + /* Get the number of arguments to expect */ + + walk_state->arg_count = method_desc->method.param_count; + return_ACPI_STATUS(AE_OK); + } + + /* + * Special handling if the name was not found during the lookup - + * some not_found cases are allowed + */ + if (status == AE_NOT_FOUND) { + + /* 1) not_found is ok during load pass 1/2 (allow forward references) */ + + if ((walk_state->parse_flags & ACPI_PARSE_MODE_MASK) != + ACPI_PARSE_EXECUTE) { + status = AE_OK; + } + + /* 2) not_found during a cond_ref_of(x) is ok by definition */ + + else if (walk_state->op->common.aml_opcode == + AML_COND_REF_OF_OP) { + status = AE_OK; + } + + /* + * 3) not_found while building a Package is ok at this point, we + * may flag as an error later if slack mode is not enabled. + * (Some ASL code depends on allowing this behavior) + */ + else if ((arg->common.parent) && + ((arg->common.parent->common.aml_opcode == + AML_PACKAGE_OP) + || (arg->common.parent->common.aml_opcode == + AML_VAR_PACKAGE_OP))) { + status = AE_OK; + } + } + + /* Final exception check (may have been changed from code above) */ + + if (ACPI_FAILURE(status)) { + ACPI_ERROR_NAMESPACE(path, status); + + if ((walk_state->parse_flags & ACPI_PARSE_MODE_MASK) == + ACPI_PARSE_EXECUTE) { + + /* Report a control method execution error */ + + status = acpi_ds_method_error(status, walk_state); + } + } + + /* Save the namepath */ + + arg->common.value.name = path; + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_get_next_simple_arg + * + * PARAMETERS: parser_state - Current parser state object + * arg_type - The argument type (AML_*_ARG) + * Arg - Where the argument is returned + * + * RETURN: None + * + * DESCRIPTION: Get the next simple argument (constant, string, or namestring) + * + ******************************************************************************/ + +void +acpi_ps_get_next_simple_arg(struct acpi_parse_state *parser_state, + u32 arg_type, union acpi_parse_object *arg) +{ + u32 length; + u16 opcode; + u8 *aml = parser_state->aml; + + ACPI_FUNCTION_TRACE_U32(ps_get_next_simple_arg, arg_type); + + switch (arg_type) { + case ARGP_BYTEDATA: + + /* Get 1 byte from the AML stream */ + + opcode = AML_BYTE_OP; + arg->common.value.integer = (acpi_integer) * aml; + length = 1; + break; + + case ARGP_WORDDATA: + + /* Get 2 bytes from the AML stream */ + + opcode = AML_WORD_OP; + ACPI_MOVE_16_TO_64(&arg->common.value.integer, aml); + length = 2; + break; + + case ARGP_DWORDDATA: + + /* Get 4 bytes from the AML stream */ + + opcode = AML_DWORD_OP; + ACPI_MOVE_32_TO_64(&arg->common.value.integer, aml); + length = 4; + break; + + case ARGP_QWORDDATA: + + /* Get 8 bytes from the AML stream */ + + opcode = AML_QWORD_OP; + ACPI_MOVE_64_TO_64(&arg->common.value.integer, aml); + length = 8; + break; + + case ARGP_CHARLIST: + + /* Get a pointer to the string, point past the string */ + + opcode = AML_STRING_OP; + arg->common.value.string = ACPI_CAST_PTR(char, aml); + + /* Find the null terminator */ + + length = 0; + while (aml[length]) { + length++; + } + length++; + break; + + case ARGP_NAME: + case ARGP_NAMESTRING: + + acpi_ps_init_op(arg, AML_INT_NAMEPATH_OP); + arg->common.value.name = + acpi_ps_get_next_namestring(parser_state); + return_VOID; + + default: + + ACPI_ERROR((AE_INFO, "Invalid ArgType %X", arg_type)); + return_VOID; + } + + acpi_ps_init_op(arg, opcode); + parser_state->aml += length; + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_get_next_field + * + * PARAMETERS: parser_state - Current parser state object + * + * RETURN: A newly allocated FIELD op + * + * DESCRIPTION: Get next field (named_field, reserved_field, or access_field) + * + ******************************************************************************/ + +static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state + *parser_state) +{ + u32 aml_offset = (u32) + ACPI_PTR_DIFF(parser_state->aml, + parser_state->aml_start); + union acpi_parse_object *field; + u16 opcode; + u32 name; + + ACPI_FUNCTION_TRACE(ps_get_next_field); + + /* Determine field type */ + + switch (ACPI_GET8(parser_state->aml)) { + default: + + opcode = AML_INT_NAMEDFIELD_OP; + break; + + case 0x00: + + opcode = AML_INT_RESERVEDFIELD_OP; + parser_state->aml++; + break; + + case 0x01: + + opcode = AML_INT_ACCESSFIELD_OP; + parser_state->aml++; + break; + } + + /* Allocate a new field op */ + + field = acpi_ps_alloc_op(opcode); + if (!field) { + return_PTR(NULL); + } + + field->common.aml_offset = aml_offset; + + /* Decode the field type */ + + switch (opcode) { + case AML_INT_NAMEDFIELD_OP: + + /* Get the 4-character name */ + + ACPI_MOVE_32_TO_32(&name, parser_state->aml); + acpi_ps_set_name(field, name); + parser_state->aml += ACPI_NAME_SIZE; + + /* Get the length which is encoded as a package length */ + + field->common.value.size = + acpi_ps_get_next_package_length(parser_state); + break; + + case AML_INT_RESERVEDFIELD_OP: + + /* Get the length which is encoded as a package length */ + + field->common.value.size = + acpi_ps_get_next_package_length(parser_state); + break; + + case AML_INT_ACCESSFIELD_OP: + + /* + * Get access_type and access_attrib and merge into the field Op + * access_type is first operand, access_attribute is second + */ + field->common.value.integer = + (((u32) ACPI_GET8(parser_state->aml) << 8)); + parser_state->aml++; + field->common.value.integer |= ACPI_GET8(parser_state->aml); + parser_state->aml++; + break; + + default: + + /* Opcode was set in previous switch */ + break; + } + + return_PTR(field); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_get_next_arg + * + * PARAMETERS: walk_state - Current state + * parser_state - Current parser state object + * arg_type - The argument type (AML_*_ARG) + * return_arg - Where the next arg is returned + * + * RETURN: Status, and an op object containing the next argument. + * + * DESCRIPTION: Get next argument (including complex list arguments that require + * pushing the parser stack) + * + ******************************************************************************/ + +acpi_status +acpi_ps_get_next_arg(struct acpi_walk_state *walk_state, + struct acpi_parse_state *parser_state, + u32 arg_type, union acpi_parse_object **return_arg) +{ + union acpi_parse_object *arg = NULL; + union acpi_parse_object *prev = NULL; + union acpi_parse_object *field; + u32 subop; + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE_PTR(ps_get_next_arg, parser_state); + + switch (arg_type) { + case ARGP_BYTEDATA: + case ARGP_WORDDATA: + case ARGP_DWORDDATA: + case ARGP_CHARLIST: + case ARGP_NAME: + case ARGP_NAMESTRING: + + /* Constants, strings, and namestrings are all the same size */ + + arg = acpi_ps_alloc_op(AML_BYTE_OP); + if (!arg) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + acpi_ps_get_next_simple_arg(parser_state, arg_type, arg); + break; + + case ARGP_PKGLENGTH: + + /* Package length, nothing returned */ + + parser_state->pkg_end = + acpi_ps_get_next_package_end(parser_state); + break; + + case ARGP_FIELDLIST: + + if (parser_state->aml < parser_state->pkg_end) { + + /* Non-empty list */ + + while (parser_state->aml < parser_state->pkg_end) { + field = acpi_ps_get_next_field(parser_state); + if (!field) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + if (prev) { + prev->common.next = field; + } else { + arg = field; + } + prev = field; + } + + /* Skip to End of byte data */ + + parser_state->aml = parser_state->pkg_end; + } + break; + + case ARGP_BYTELIST: + + if (parser_state->aml < parser_state->pkg_end) { + + /* Non-empty list */ + + arg = acpi_ps_alloc_op(AML_INT_BYTELIST_OP); + if (!arg) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* Fill in bytelist data */ + + arg->common.value.size = (u32) + ACPI_PTR_DIFF(parser_state->pkg_end, + parser_state->aml); + arg->named.data = parser_state->aml; + + /* Skip to End of byte data */ + + parser_state->aml = parser_state->pkg_end; + } + break; + + case ARGP_TARGET: + case ARGP_SUPERNAME: + case ARGP_SIMPLENAME: + + subop = acpi_ps_peek_opcode(parser_state); + if (subop == 0 || + acpi_ps_is_leading_char(subop) || + acpi_ps_is_prefix_char(subop)) { + + /* null_name or name_string */ + + arg = acpi_ps_alloc_op(AML_INT_NAMEPATH_OP); + if (!arg) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* To support super_name arg of Unload */ + + if (walk_state->opcode == AML_UNLOAD_OP) { + status = + acpi_ps_get_next_namepath(walk_state, + parser_state, arg, + 1); + + /* + * If the super_name arg of Unload is a method call, + * we have restored the AML pointer, just free this Arg + */ + if (arg->common.aml_opcode == + AML_INT_METHODCALL_OP) { + acpi_ps_free_op(arg); + arg = NULL; + } + } else { + status = + acpi_ps_get_next_namepath(walk_state, + parser_state, arg, + 0); + } + } else { + /* Single complex argument, nothing returned */ + + walk_state->arg_count = 1; + } + break; + + case ARGP_DATAOBJ: + case ARGP_TERMARG: + + /* Single complex argument, nothing returned */ + + walk_state->arg_count = 1; + break; + + case ARGP_DATAOBJLIST: + case ARGP_TERMLIST: + case ARGP_OBJLIST: + + if (parser_state->aml < parser_state->pkg_end) { + + /* Non-empty list of variable arguments, nothing returned */ + + walk_state->arg_count = ACPI_VAR_ARGS; + } + break; + + default: + + ACPI_ERROR((AE_INFO, "Invalid ArgType: %X", arg_type)); + status = AE_AML_OPERAND_TYPE; + break; + } + + *return_arg = arg; + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/psloop.c b/drivers/acpi/acpica/psloop.c new file mode 100644 index 000000000000..fd6648f0d65f --- /dev/null +++ b/drivers/acpi/acpica/psloop.c @@ -0,0 +1,1088 @@ +/****************************************************************************** + * + * Module Name: psloop - Main AML parse loop + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +/* + * Parse the AML and build an operation tree as most interpreters, (such as + * Perl) do. Parsing is done by hand rather than with a YACC generated parser + * to tightly constrain stack and dynamic memory usage. Parsing is kept + * flexible and the code fairly compact by parsing based on a list of AML + * opcode templates in aml_op_info[]. + */ + +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_PARSER +ACPI_MODULE_NAME("psloop") + +static u32 acpi_gbl_depth = 0; + +/* Local prototypes */ + +static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state); + +static acpi_status +acpi_ps_build_named_op(struct acpi_walk_state *walk_state, + u8 * aml_op_start, + union acpi_parse_object *unnamed_op, + union acpi_parse_object **op); + +static acpi_status +acpi_ps_create_op(struct acpi_walk_state *walk_state, + u8 * aml_op_start, union acpi_parse_object **new_op); + +static acpi_status +acpi_ps_get_arguments(struct acpi_walk_state *walk_state, + u8 * aml_op_start, union acpi_parse_object *op); + +static acpi_status +acpi_ps_complete_op(struct acpi_walk_state *walk_state, + union acpi_parse_object **op, acpi_status status); + +static acpi_status +acpi_ps_complete_final_op(struct acpi_walk_state *walk_state, + union acpi_parse_object *op, acpi_status status); + +/******************************************************************************* + * + * FUNCTION: acpi_ps_get_aml_opcode + * + * PARAMETERS: walk_state - Current state + * + * RETURN: Status + * + * DESCRIPTION: Extract the next AML opcode from the input stream. + * + ******************************************************************************/ + +static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state) +{ + + ACPI_FUNCTION_TRACE_PTR(ps_get_aml_opcode, walk_state); + + walk_state->aml_offset = + (u32) ACPI_PTR_DIFF(walk_state->parser_state.aml, + walk_state->parser_state.aml_start); + walk_state->opcode = acpi_ps_peek_opcode(&(walk_state->parser_state)); + + /* + * First cut to determine what we have found: + * 1) A valid AML opcode + * 2) A name string + * 3) An unknown/invalid opcode + */ + walk_state->op_info = acpi_ps_get_opcode_info(walk_state->opcode); + + switch (walk_state->op_info->class) { + case AML_CLASS_ASCII: + case AML_CLASS_PREFIX: + /* + * Starts with a valid prefix or ASCII char, this is a name + * string. Convert the bare name string to a namepath. + */ + walk_state->opcode = AML_INT_NAMEPATH_OP; + walk_state->arg_types = ARGP_NAMESTRING; + break; + + case AML_CLASS_UNKNOWN: + + /* The opcode is unrecognized. Just skip unknown opcodes */ + + ACPI_ERROR((AE_INFO, + "Found unknown opcode %X at AML address %p offset %X, ignoring", + walk_state->opcode, walk_state->parser_state.aml, + walk_state->aml_offset)); + + ACPI_DUMP_BUFFER(walk_state->parser_state.aml, 128); + + /* Assume one-byte bad opcode */ + + walk_state->parser_state.aml++; + return_ACPI_STATUS(AE_CTRL_PARSE_CONTINUE); + + default: + + /* Found opcode info, this is a normal opcode */ + + walk_state->parser_state.aml += + acpi_ps_get_opcode_size(walk_state->opcode); + walk_state->arg_types = walk_state->op_info->parse_args; + break; + } + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_build_named_op + * + * PARAMETERS: walk_state - Current state + * aml_op_start - Begin of named Op in AML + * unnamed_op - Early Op (not a named Op) + * Op - Returned Op + * + * RETURN: Status + * + * DESCRIPTION: Parse a named Op + * + ******************************************************************************/ + +static acpi_status +acpi_ps_build_named_op(struct acpi_walk_state *walk_state, + u8 * aml_op_start, + union acpi_parse_object *unnamed_op, + union acpi_parse_object **op) +{ + acpi_status status = AE_OK; + union acpi_parse_object *arg = NULL; + + ACPI_FUNCTION_TRACE_PTR(ps_build_named_op, walk_state); + + unnamed_op->common.value.arg = NULL; + unnamed_op->common.arg_list_length = 0; + unnamed_op->common.aml_opcode = walk_state->opcode; + + /* + * Get and append arguments until we find the node that contains + * the name (the type ARGP_NAME). + */ + while (GET_CURRENT_ARG_TYPE(walk_state->arg_types) && + (GET_CURRENT_ARG_TYPE(walk_state->arg_types) != ARGP_NAME)) { + status = + acpi_ps_get_next_arg(walk_state, + &(walk_state->parser_state), + GET_CURRENT_ARG_TYPE(walk_state-> + arg_types), &arg); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + acpi_ps_append_arg(unnamed_op, arg); + INCREMENT_ARG_LIST(walk_state->arg_types); + } + + /* + * Make sure that we found a NAME and didn't run out of arguments + */ + if (!GET_CURRENT_ARG_TYPE(walk_state->arg_types)) { + return_ACPI_STATUS(AE_AML_NO_OPERAND); + } + + /* We know that this arg is a name, move to next arg */ + + INCREMENT_ARG_LIST(walk_state->arg_types); + + /* + * Find the object. This will either insert the object into + * the namespace or simply look it up + */ + walk_state->op = NULL; + + status = walk_state->descending_callback(walk_state, op); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, "During name lookup/catalog")); + return_ACPI_STATUS(status); + } + + if (!*op) { + return_ACPI_STATUS(AE_CTRL_PARSE_CONTINUE); + } + + status = acpi_ps_next_parse_state(walk_state, *op, status); + if (ACPI_FAILURE(status)) { + if (status == AE_CTRL_PENDING) { + return_ACPI_STATUS(AE_CTRL_PARSE_PENDING); + } + return_ACPI_STATUS(status); + } + + acpi_ps_append_arg(*op, unnamed_op->common.value.arg); + acpi_gbl_depth++; + + if ((*op)->common.aml_opcode == AML_REGION_OP || + (*op)->common.aml_opcode == AML_DATA_REGION_OP) { + /* + * Defer final parsing of an operation_region body, because we don't + * have enough info in the first pass to parse it correctly (i.e., + * there may be method calls within the term_arg elements of the body.) + * + * However, we must continue parsing because the opregion is not a + * standalone package -- we don't know where the end is at this point. + * + * (Length is unknown until parse of the body complete) + */ + (*op)->named.data = aml_op_start; + (*op)->named.length = 0; + } + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_create_op + * + * PARAMETERS: walk_state - Current state + * aml_op_start - Op start in AML + * new_op - Returned Op + * + * RETURN: Status + * + * DESCRIPTION: Get Op from AML + * + ******************************************************************************/ + +static acpi_status +acpi_ps_create_op(struct acpi_walk_state *walk_state, + u8 * aml_op_start, union acpi_parse_object **new_op) +{ + acpi_status status = AE_OK; + union acpi_parse_object *op; + union acpi_parse_object *named_op = NULL; + union acpi_parse_object *parent_scope; + u8 argument_count; + const struct acpi_opcode_info *op_info; + + ACPI_FUNCTION_TRACE_PTR(ps_create_op, walk_state); + + status = acpi_ps_get_aml_opcode(walk_state); + if (status == AE_CTRL_PARSE_CONTINUE) { + return_ACPI_STATUS(AE_CTRL_PARSE_CONTINUE); + } + + /* Create Op structure and append to parent's argument list */ + + walk_state->op_info = acpi_ps_get_opcode_info(walk_state->opcode); + op = acpi_ps_alloc_op(walk_state->opcode); + if (!op) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + if (walk_state->op_info->flags & AML_NAMED) { + status = + acpi_ps_build_named_op(walk_state, aml_op_start, op, + &named_op); + acpi_ps_free_op(op); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + *new_op = named_op; + return_ACPI_STATUS(AE_OK); + } + + /* Not a named opcode, just allocate Op and append to parent */ + + if (walk_state->op_info->flags & AML_CREATE) { + /* + * Backup to beginning of create_xXXfield declaration + * body_length is unknown until we parse the body + */ + op->named.data = aml_op_start; + op->named.length = 0; + } + + if (walk_state->opcode == AML_BANK_FIELD_OP) { + /* + * Backup to beginning of bank_field declaration + * body_length is unknown until we parse the body + */ + op->named.data = aml_op_start; + op->named.length = 0; + } + + parent_scope = acpi_ps_get_parent_scope(&(walk_state->parser_state)); + acpi_ps_append_arg(parent_scope, op); + + if (parent_scope) { + op_info = + acpi_ps_get_opcode_info(parent_scope->common.aml_opcode); + if (op_info->flags & AML_HAS_TARGET) { + argument_count = + acpi_ps_get_argument_count(op_info->type); + if (parent_scope->common.arg_list_length > + argument_count) { + op->common.flags |= ACPI_PARSEOP_TARGET; + } + } else if (parent_scope->common.aml_opcode == AML_INCREMENT_OP) { + op->common.flags |= ACPI_PARSEOP_TARGET; + } + } + + if (walk_state->descending_callback != NULL) { + /* + * Find the object. This will either insert the object into + * the namespace or simply look it up + */ + walk_state->op = *new_op = op; + + status = walk_state->descending_callback(walk_state, &op); + status = acpi_ps_next_parse_state(walk_state, op, status); + if (status == AE_CTRL_PENDING) { + status = AE_CTRL_PARSE_PENDING; + } + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_get_arguments + * + * PARAMETERS: walk_state - Current state + * aml_op_start - Op start in AML + * Op - Current Op + * + * RETURN: Status + * + * DESCRIPTION: Get arguments for passed Op. + * + ******************************************************************************/ + +static acpi_status +acpi_ps_get_arguments(struct acpi_walk_state *walk_state, + u8 * aml_op_start, union acpi_parse_object *op) +{ + acpi_status status = AE_OK; + union acpi_parse_object *arg = NULL; + + ACPI_FUNCTION_TRACE_PTR(ps_get_arguments, walk_state); + + switch (op->common.aml_opcode) { + case AML_BYTE_OP: /* AML_BYTEDATA_ARG */ + case AML_WORD_OP: /* AML_WORDDATA_ARG */ + case AML_DWORD_OP: /* AML_DWORDATA_ARG */ + case AML_QWORD_OP: /* AML_QWORDATA_ARG */ + case AML_STRING_OP: /* AML_ASCIICHARLIST_ARG */ + + /* Fill in constant or string argument directly */ + + acpi_ps_get_next_simple_arg(&(walk_state->parser_state), + GET_CURRENT_ARG_TYPE(walk_state-> + arg_types), + op); + break; + + case AML_INT_NAMEPATH_OP: /* AML_NAMESTRING_ARG */ + + status = + acpi_ps_get_next_namepath(walk_state, + &(walk_state->parser_state), op, + 1); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + walk_state->arg_types = 0; + break; + + default: + /* + * Op is not a constant or string, append each argument to the Op + */ + while (GET_CURRENT_ARG_TYPE(walk_state->arg_types) + && !walk_state->arg_count) { + walk_state->aml_offset = + (u32) ACPI_PTR_DIFF(walk_state->parser_state.aml, + walk_state->parser_state. + aml_start); + + status = + acpi_ps_get_next_arg(walk_state, + &(walk_state->parser_state), + GET_CURRENT_ARG_TYPE + (walk_state->arg_types), &arg); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + if (arg) { + arg->common.aml_offset = walk_state->aml_offset; + acpi_ps_append_arg(op, arg); + } + + INCREMENT_ARG_LIST(walk_state->arg_types); + } + + /* Special processing for certain opcodes */ + + /* TBD (remove): Temporary mechanism to disable this code if needed */ + +#ifdef ACPI_ENABLE_MODULE_LEVEL_CODE + + if ((walk_state->pass_number <= ACPI_IMODE_LOAD_PASS1) && + ((walk_state->parse_flags & ACPI_PARSE_DISASSEMBLE) == 0)) { + /* + * We want to skip If/Else/While constructs during Pass1 because we + * want to actually conditionally execute the code during Pass2. + * + * Except for disassembly, where we always want to walk the + * If/Else/While packages + */ + switch (op->common.aml_opcode) { + case AML_IF_OP: + case AML_ELSE_OP: + case AML_WHILE_OP: + + ACPI_DEBUG_PRINT((ACPI_DB_PARSE, + "Pass1: Skipping an If/Else/While body\n")); + + /* Skip body of if/else/while in pass 1 */ + + walk_state->parser_state.aml = + walk_state->parser_state.pkg_end; + walk_state->arg_count = 0; + break; + + default: + break; + } + } +#endif + + switch (op->common.aml_opcode) { + case AML_METHOD_OP: + /* + * Skip parsing of control method because we don't have enough + * info in the first pass to parse it correctly. + * + * Save the length and address of the body + */ + op->named.data = walk_state->parser_state.aml; + op->named.length = (u32) + (walk_state->parser_state.pkg_end - + walk_state->parser_state.aml); + + /* Skip body of method */ + + walk_state->parser_state.aml = + walk_state->parser_state.pkg_end; + walk_state->arg_count = 0; + break; + + case AML_BUFFER_OP: + case AML_PACKAGE_OP: + case AML_VAR_PACKAGE_OP: + + if ((op->common.parent) && + (op->common.parent->common.aml_opcode == + AML_NAME_OP) + && (walk_state->pass_number <= + ACPI_IMODE_LOAD_PASS2)) { + /* + * Skip parsing of Buffers and Packages because we don't have + * enough info in the first pass to parse them correctly. + */ + op->named.data = aml_op_start; + op->named.length = (u32) + (walk_state->parser_state.pkg_end - + aml_op_start); + + /* Skip body */ + + walk_state->parser_state.aml = + walk_state->parser_state.pkg_end; + walk_state->arg_count = 0; + } + break; + + case AML_WHILE_OP: + + if (walk_state->control_state) { + walk_state->control_state->control.package_end = + walk_state->parser_state.pkg_end; + } + break; + + default: + + /* No action for all other opcodes */ + break; + } + + break; + } + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_complete_op + * + * PARAMETERS: walk_state - Current state + * Op - Returned Op + * Status - Parse status before complete Op + * + * RETURN: Status + * + * DESCRIPTION: Complete Op + * + ******************************************************************************/ + +static acpi_status +acpi_ps_complete_op(struct acpi_walk_state *walk_state, + union acpi_parse_object **op, acpi_status status) +{ + acpi_status status2; + + ACPI_FUNCTION_TRACE_PTR(ps_complete_op, walk_state); + + /* + * Finished one argument of the containing scope + */ + walk_state->parser_state.scope->parse_scope.arg_count--; + + /* Close this Op (will result in parse subtree deletion) */ + + status2 = acpi_ps_complete_this_op(walk_state, *op); + if (ACPI_FAILURE(status2)) { + return_ACPI_STATUS(status2); + } + + *op = NULL; + + switch (status) { + case AE_OK: + break; + + case AE_CTRL_TRANSFER: + + /* We are about to transfer to a called method */ + + walk_state->prev_op = NULL; + walk_state->prev_arg_types = walk_state->arg_types; + return_ACPI_STATUS(status); + + case AE_CTRL_END: + + acpi_ps_pop_scope(&(walk_state->parser_state), op, + &walk_state->arg_types, + &walk_state->arg_count); + + if (*op) { + walk_state->op = *op; + walk_state->op_info = + acpi_ps_get_opcode_info((*op)->common.aml_opcode); + walk_state->opcode = (*op)->common.aml_opcode; + + status = walk_state->ascending_callback(walk_state); + status = + acpi_ps_next_parse_state(walk_state, *op, status); + + status2 = acpi_ps_complete_this_op(walk_state, *op); + if (ACPI_FAILURE(status2)) { + return_ACPI_STATUS(status2); + } + } + + status = AE_OK; + break; + + case AE_CTRL_BREAK: + case AE_CTRL_CONTINUE: + + /* Pop off scopes until we find the While */ + + while (!(*op) || ((*op)->common.aml_opcode != AML_WHILE_OP)) { + acpi_ps_pop_scope(&(walk_state->parser_state), op, + &walk_state->arg_types, + &walk_state->arg_count); + } + + /* Close this iteration of the While loop */ + + walk_state->op = *op; + walk_state->op_info = + acpi_ps_get_opcode_info((*op)->common.aml_opcode); + walk_state->opcode = (*op)->common.aml_opcode; + + status = walk_state->ascending_callback(walk_state); + status = acpi_ps_next_parse_state(walk_state, *op, status); + + status2 = acpi_ps_complete_this_op(walk_state, *op); + if (ACPI_FAILURE(status2)) { + return_ACPI_STATUS(status2); + } + + status = AE_OK; + break; + + case AE_CTRL_TERMINATE: + + /* Clean up */ + do { + if (*op) { + status2 = + acpi_ps_complete_this_op(walk_state, *op); + if (ACPI_FAILURE(status2)) { + return_ACPI_STATUS(status2); + } + + acpi_ut_delete_generic_state + (acpi_ut_pop_generic_state + (&walk_state->control_state)); + } + + acpi_ps_pop_scope(&(walk_state->parser_state), op, + &walk_state->arg_types, + &walk_state->arg_count); + + } while (*op); + + return_ACPI_STATUS(AE_OK); + + default: /* All other non-AE_OK status */ + + do { + if (*op) { + status2 = + acpi_ps_complete_this_op(walk_state, *op); + if (ACPI_FAILURE(status2)) { + return_ACPI_STATUS(status2); + } + } + + acpi_ps_pop_scope(&(walk_state->parser_state), op, + &walk_state->arg_types, + &walk_state->arg_count); + + } while (*op); + +#if 0 + /* + * TBD: Cleanup parse ops on error + */ + if (*op == NULL) { + acpi_ps_pop_scope(parser_state, op, + &walk_state->arg_types, + &walk_state->arg_count); + } +#endif + walk_state->prev_op = NULL; + walk_state->prev_arg_types = walk_state->arg_types; + return_ACPI_STATUS(status); + } + + /* This scope complete? */ + + if (acpi_ps_has_completed_scope(&(walk_state->parser_state))) { + acpi_ps_pop_scope(&(walk_state->parser_state), op, + &walk_state->arg_types, + &walk_state->arg_count); + ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "Popped scope, Op=%p\n", *op)); + } else { + *op = NULL; + } + + ACPI_PREEMPTION_POINT(); + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_complete_final_op + * + * PARAMETERS: walk_state - Current state + * Op - Current Op + * Status - Current parse status before complete last + * Op + * + * RETURN: Status + * + * DESCRIPTION: Complete last Op. + * + ******************************************************************************/ + +static acpi_status +acpi_ps_complete_final_op(struct acpi_walk_state *walk_state, + union acpi_parse_object *op, acpi_status status) +{ + acpi_status status2; + + ACPI_FUNCTION_TRACE_PTR(ps_complete_final_op, walk_state); + + /* + * Complete the last Op (if not completed), and clear the scope stack. + * It is easily possible to end an AML "package" with an unbounded number + * of open scopes (such as when several ASL blocks are closed with + * sequential closing braces). We want to terminate each one cleanly. + */ + ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "AML package complete at Op %p\n", + op)); + do { + if (op) { + if (walk_state->ascending_callback != NULL) { + walk_state->op = op; + walk_state->op_info = + acpi_ps_get_opcode_info(op->common. + aml_opcode); + walk_state->opcode = op->common.aml_opcode; + + status = + walk_state->ascending_callback(walk_state); + status = + acpi_ps_next_parse_state(walk_state, op, + status); + if (status == AE_CTRL_PENDING) { + status = + acpi_ps_complete_op(walk_state, &op, + AE_OK); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + + if (status == AE_CTRL_TERMINATE) { + status = AE_OK; + + /* Clean up */ + do { + if (op) { + status2 = + acpi_ps_complete_this_op + (walk_state, op); + if (ACPI_FAILURE + (status2)) { + return_ACPI_STATUS + (status2); + } + } + + acpi_ps_pop_scope(& + (walk_state-> + parser_state), + &op, + &walk_state-> + arg_types, + &walk_state-> + arg_count); + + } while (op); + + return_ACPI_STATUS(status); + } + + else if (ACPI_FAILURE(status)) { + + /* First error is most important */ + + (void) + acpi_ps_complete_this_op(walk_state, + op); + return_ACPI_STATUS(status); + } + } + + status2 = acpi_ps_complete_this_op(walk_state, op); + if (ACPI_FAILURE(status2)) { + return_ACPI_STATUS(status2); + } + } + + acpi_ps_pop_scope(&(walk_state->parser_state), &op, + &walk_state->arg_types, + &walk_state->arg_count); + + } while (op); + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_parse_loop + * + * PARAMETERS: walk_state - Current state + * + * RETURN: Status + * + * DESCRIPTION: Parse AML (pointed to by the current parser state) and return + * a tree of ops. + * + ******************************************************************************/ + +acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state) +{ + acpi_status status = AE_OK; + union acpi_parse_object *op = NULL; /* current op */ + struct acpi_parse_state *parser_state; + u8 *aml_op_start = NULL; + + ACPI_FUNCTION_TRACE_PTR(ps_parse_loop, walk_state); + + if (walk_state->descending_callback == NULL) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + parser_state = &walk_state->parser_state; + walk_state->arg_types = 0; + +#if (!defined (ACPI_NO_METHOD_EXECUTION) && !defined (ACPI_CONSTANT_EVAL_ONLY)) + + if (walk_state->walk_type & ACPI_WALK_METHOD_RESTART) { + + /* We are restarting a preempted control method */ + + if (acpi_ps_has_completed_scope(parser_state)) { + /* + * We must check if a predicate to an IF or WHILE statement + * was just completed + */ + if ((parser_state->scope->parse_scope.op) && + ((parser_state->scope->parse_scope.op->common. + aml_opcode == AML_IF_OP) + || (parser_state->scope->parse_scope.op->common. + aml_opcode == AML_WHILE_OP)) + && (walk_state->control_state) + && (walk_state->control_state->common.state == + ACPI_CONTROL_PREDICATE_EXECUTING)) { + /* + * A predicate was just completed, get the value of the + * predicate and branch based on that value + */ + walk_state->op = NULL; + status = + acpi_ds_get_predicate_value(walk_state, + ACPI_TO_POINTER + (TRUE)); + if (ACPI_FAILURE(status) + && ((status & AE_CODE_MASK) != + AE_CODE_CONTROL)) { + if (status == AE_AML_NO_RETURN_VALUE) { + ACPI_EXCEPTION((AE_INFO, status, + "Invoked method did not return a value")); + + } + + ACPI_EXCEPTION((AE_INFO, status, + "GetPredicate Failed")); + return_ACPI_STATUS(status); + } + + status = + acpi_ps_next_parse_state(walk_state, op, + status); + } + + acpi_ps_pop_scope(parser_state, &op, + &walk_state->arg_types, + &walk_state->arg_count); + ACPI_DEBUG_PRINT((ACPI_DB_PARSE, + "Popped scope, Op=%p\n", op)); + } else if (walk_state->prev_op) { + + /* We were in the middle of an op */ + + op = walk_state->prev_op; + walk_state->arg_types = walk_state->prev_arg_types; + } + } +#endif + + /* Iterative parsing loop, while there is more AML to process: */ + + while ((parser_state->aml < parser_state->aml_end) || (op)) { + aml_op_start = parser_state->aml; + if (!op) { + status = + acpi_ps_create_op(walk_state, aml_op_start, &op); + if (ACPI_FAILURE(status)) { + if (status == AE_CTRL_PARSE_CONTINUE) { + continue; + } + + if (status == AE_CTRL_PARSE_PENDING) { + status = AE_OK; + } + + status = + acpi_ps_complete_op(walk_state, &op, + status); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + continue; + } + + op->common.aml_offset = walk_state->aml_offset; + + if (walk_state->op_info) { + ACPI_DEBUG_PRINT((ACPI_DB_PARSE, + "Opcode %4.4X [%s] Op %p Aml %p AmlOffset %5.5X\n", + (u32) op->common.aml_opcode, + walk_state->op_info->name, op, + parser_state->aml, + op->common.aml_offset)); + } + } + + /* + * Start arg_count at zero because we don't know if there are + * any args yet + */ + walk_state->arg_count = 0; + + /* Are there any arguments that must be processed? */ + + if (walk_state->arg_types) { + + /* Get arguments */ + + status = + acpi_ps_get_arguments(walk_state, aml_op_start, op); + if (ACPI_FAILURE(status)) { + status = + acpi_ps_complete_op(walk_state, &op, + status); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + continue; + } + } + + /* Check for arguments that need to be processed */ + + if (walk_state->arg_count) { + /* + * There are arguments (complex ones), push Op and + * prepare for argument + */ + status = acpi_ps_push_scope(parser_state, op, + walk_state->arg_types, + walk_state->arg_count); + if (ACPI_FAILURE(status)) { + status = + acpi_ps_complete_op(walk_state, &op, + status); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + continue; + } + + op = NULL; + continue; + } + + /* + * All arguments have been processed -- Op is complete, + * prepare for next + */ + walk_state->op_info = + acpi_ps_get_opcode_info(op->common.aml_opcode); + if (walk_state->op_info->flags & AML_NAMED) { + if (acpi_gbl_depth) { + acpi_gbl_depth--; + } + + if (op->common.aml_opcode == AML_REGION_OP || + op->common.aml_opcode == AML_DATA_REGION_OP) { + /* + * Skip parsing of control method or opregion body, + * because we don't have enough info in the first pass + * to parse them correctly. + * + * Completed parsing an op_region declaration, we now + * know the length. + */ + op->named.length = + (u32) (parser_state->aml - op->named.data); + } + } + + if (walk_state->op_info->flags & AML_CREATE) { + /* + * Backup to beginning of create_xXXfield declaration (1 for + * Opcode) + * + * body_length is unknown until we parse the body + */ + op->named.length = + (u32) (parser_state->aml - op->named.data); + } + + if (op->common.aml_opcode == AML_BANK_FIELD_OP) { + /* + * Backup to beginning of bank_field declaration + * + * body_length is unknown until we parse the body + */ + op->named.length = + (u32) (parser_state->aml - op->named.data); + } + + /* This op complete, notify the dispatcher */ + + if (walk_state->ascending_callback != NULL) { + walk_state->op = op; + walk_state->opcode = op->common.aml_opcode; + + status = walk_state->ascending_callback(walk_state); + status = + acpi_ps_next_parse_state(walk_state, op, status); + if (status == AE_CTRL_PENDING) { + status = AE_OK; + } + } + + status = acpi_ps_complete_op(walk_state, &op, status); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + } /* while parser_state->Aml */ + + status = acpi_ps_complete_final_op(walk_state, op, status); + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/psopcode.c b/drivers/acpi/acpica/psopcode.c new file mode 100644 index 000000000000..3693a121b347 --- /dev/null +++ b/drivers/acpi/acpica/psopcode.c @@ -0,0 +1,810 @@ +/****************************************************************************** + * + * Module Name: psopcode - Parser/Interpreter opcode information table + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_PARSER +ACPI_MODULE_NAME("psopcode") + +static const u8 acpi_gbl_argument_count[] = + { 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 6 }; + +/******************************************************************************* + * + * NAME: acpi_gbl_aml_op_info + * + * DESCRIPTION: Opcode table. Each entry contains + * The name is a simple ascii string, the operand specifier is an + * ascii string with one letter per operand. The letter specifies + * the operand type. + * + ******************************************************************************/ + +/* + * Summary of opcode types/flags + * + + Opcodes that have associated namespace objects (AML_NSOBJECT flag) + + AML_SCOPE_OP + AML_DEVICE_OP + AML_THERMAL_ZONE_OP + AML_METHOD_OP + AML_POWER_RES_OP + AML_PROCESSOR_OP + AML_FIELD_OP + AML_INDEX_FIELD_OP + AML_BANK_FIELD_OP + AML_NAME_OP + AML_ALIAS_OP + AML_MUTEX_OP + AML_EVENT_OP + AML_REGION_OP + AML_CREATE_FIELD_OP + AML_CREATE_BIT_FIELD_OP + AML_CREATE_BYTE_FIELD_OP + AML_CREATE_WORD_FIELD_OP + AML_CREATE_DWORD_FIELD_OP + AML_CREATE_QWORD_FIELD_OP + AML_INT_NAMEDFIELD_OP + AML_INT_METHODCALL_OP + AML_INT_NAMEPATH_OP + + Opcodes that are "namespace" opcodes (AML_NSOPCODE flag) + + AML_SCOPE_OP + AML_DEVICE_OP + AML_THERMAL_ZONE_OP + AML_METHOD_OP + AML_POWER_RES_OP + AML_PROCESSOR_OP + AML_FIELD_OP + AML_INDEX_FIELD_OP + AML_BANK_FIELD_OP + AML_NAME_OP + AML_ALIAS_OP + AML_MUTEX_OP + AML_EVENT_OP + AML_REGION_OP + AML_INT_NAMEDFIELD_OP + + Opcodes that have an associated namespace node (AML_NSNODE flag) + + AML_SCOPE_OP + AML_DEVICE_OP + AML_THERMAL_ZONE_OP + AML_METHOD_OP + AML_POWER_RES_OP + AML_PROCESSOR_OP + AML_NAME_OP + AML_ALIAS_OP + AML_MUTEX_OP + AML_EVENT_OP + AML_REGION_OP + AML_CREATE_FIELD_OP + AML_CREATE_BIT_FIELD_OP + AML_CREATE_BYTE_FIELD_OP + AML_CREATE_WORD_FIELD_OP + AML_CREATE_DWORD_FIELD_OP + AML_CREATE_QWORD_FIELD_OP + AML_INT_NAMEDFIELD_OP + AML_INT_METHODCALL_OP + AML_INT_NAMEPATH_OP + + Opcodes that define named ACPI objects (AML_NAMED flag) + + AML_SCOPE_OP + AML_DEVICE_OP + AML_THERMAL_ZONE_OP + AML_METHOD_OP + AML_POWER_RES_OP + AML_PROCESSOR_OP + AML_NAME_OP + AML_ALIAS_OP + AML_MUTEX_OP + AML_EVENT_OP + AML_REGION_OP + AML_INT_NAMEDFIELD_OP + + Opcodes that contain executable AML as part of the definition that + must be deferred until needed + + AML_METHOD_OP + AML_VAR_PACKAGE_OP + AML_CREATE_FIELD_OP + AML_CREATE_BIT_FIELD_OP + AML_CREATE_BYTE_FIELD_OP + AML_CREATE_WORD_FIELD_OP + AML_CREATE_DWORD_FIELD_OP + AML_CREATE_QWORD_FIELD_OP + AML_REGION_OP + AML_BUFFER_OP + + Field opcodes + + AML_CREATE_FIELD_OP + AML_FIELD_OP + AML_INDEX_FIELD_OP + AML_BANK_FIELD_OP + + Field "Create" opcodes + + AML_CREATE_FIELD_OP + AML_CREATE_BIT_FIELD_OP + AML_CREATE_BYTE_FIELD_OP + AML_CREATE_WORD_FIELD_OP + AML_CREATE_DWORD_FIELD_OP + AML_CREATE_QWORD_FIELD_OP + + ******************************************************************************/ + +/* + * Master Opcode information table. A summary of everything we know about each + * opcode, all in one place. + */ +const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES] = { +/*! [Begin] no source code translation */ +/* Index Name Parser Args Interpreter Args ObjectType Class Type Flags */ + +/* 00 */ ACPI_OP("Zero", ARGP_ZERO_OP, ARGI_ZERO_OP, ACPI_TYPE_INTEGER, + AML_CLASS_ARGUMENT, AML_TYPE_CONSTANT, AML_CONSTANT), +/* 01 */ ACPI_OP("One", ARGP_ONE_OP, ARGI_ONE_OP, ACPI_TYPE_INTEGER, + AML_CLASS_ARGUMENT, AML_TYPE_CONSTANT, AML_CONSTANT), +/* 02 */ ACPI_OP("Alias", ARGP_ALIAS_OP, ARGI_ALIAS_OP, + ACPI_TYPE_LOCAL_ALIAS, AML_CLASS_NAMED_OBJECT, + AML_TYPE_NAMED_SIMPLE, + AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | + AML_NSNODE | AML_NAMED), +/* 03 */ ACPI_OP("Name", ARGP_NAME_OP, ARGI_NAME_OP, ACPI_TYPE_ANY, + AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_COMPLEX, + AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | + AML_NSNODE | AML_NAMED), +/* 04 */ ACPI_OP("ByteConst", ARGP_BYTE_OP, ARGI_BYTE_OP, + ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT, + AML_TYPE_LITERAL, AML_CONSTANT), +/* 05 */ ACPI_OP("WordConst", ARGP_WORD_OP, ARGI_WORD_OP, + ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT, + AML_TYPE_LITERAL, AML_CONSTANT), +/* 06 */ ACPI_OP("DwordConst", ARGP_DWORD_OP, ARGI_DWORD_OP, + ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT, + AML_TYPE_LITERAL, AML_CONSTANT), +/* 07 */ ACPI_OP("String", ARGP_STRING_OP, ARGI_STRING_OP, + ACPI_TYPE_STRING, AML_CLASS_ARGUMENT, + AML_TYPE_LITERAL, AML_CONSTANT), +/* 08 */ ACPI_OP("Scope", ARGP_SCOPE_OP, ARGI_SCOPE_OP, + ACPI_TYPE_LOCAL_SCOPE, AML_CLASS_NAMED_OBJECT, + AML_TYPE_NAMED_NO_OBJ, + AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | + AML_NSNODE | AML_NAMED), +/* 09 */ ACPI_OP("Buffer", ARGP_BUFFER_OP, ARGI_BUFFER_OP, + ACPI_TYPE_BUFFER, AML_CLASS_CREATE, + AML_TYPE_CREATE_OBJECT, + AML_HAS_ARGS | AML_DEFER | AML_CONSTANT), +/* 0A */ ACPI_OP("Package", ARGP_PACKAGE_OP, ARGI_PACKAGE_OP, + ACPI_TYPE_PACKAGE, AML_CLASS_CREATE, + AML_TYPE_CREATE_OBJECT, + AML_HAS_ARGS | AML_DEFER | AML_CONSTANT), +/* 0B */ ACPI_OP("Method", ARGP_METHOD_OP, ARGI_METHOD_OP, + ACPI_TYPE_METHOD, AML_CLASS_NAMED_OBJECT, + AML_TYPE_NAMED_COMPLEX, + AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | + AML_NSNODE | AML_NAMED | AML_DEFER), +/* 0C */ ACPI_OP("Local0", ARGP_LOCAL0, ARGI_LOCAL0, + ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, + AML_TYPE_LOCAL_VARIABLE, 0), +/* 0D */ ACPI_OP("Local1", ARGP_LOCAL1, ARGI_LOCAL1, + ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, + AML_TYPE_LOCAL_VARIABLE, 0), +/* 0E */ ACPI_OP("Local2", ARGP_LOCAL2, ARGI_LOCAL2, + ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, + AML_TYPE_LOCAL_VARIABLE, 0), +/* 0F */ ACPI_OP("Local3", ARGP_LOCAL3, ARGI_LOCAL3, + ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, + AML_TYPE_LOCAL_VARIABLE, 0), +/* 10 */ ACPI_OP("Local4", ARGP_LOCAL4, ARGI_LOCAL4, + ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, + AML_TYPE_LOCAL_VARIABLE, 0), +/* 11 */ ACPI_OP("Local5", ARGP_LOCAL5, ARGI_LOCAL5, + ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, + AML_TYPE_LOCAL_VARIABLE, 0), +/* 12 */ ACPI_OP("Local6", ARGP_LOCAL6, ARGI_LOCAL6, + ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, + AML_TYPE_LOCAL_VARIABLE, 0), +/* 13 */ ACPI_OP("Local7", ARGP_LOCAL7, ARGI_LOCAL7, + ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, + AML_TYPE_LOCAL_VARIABLE, 0), +/* 14 */ ACPI_OP("Arg0", ARGP_ARG0, ARGI_ARG0, + ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, + AML_TYPE_METHOD_ARGUMENT, 0), +/* 15 */ ACPI_OP("Arg1", ARGP_ARG1, ARGI_ARG1, + ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, + AML_TYPE_METHOD_ARGUMENT, 0), +/* 16 */ ACPI_OP("Arg2", ARGP_ARG2, ARGI_ARG2, + ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, + AML_TYPE_METHOD_ARGUMENT, 0), +/* 17 */ ACPI_OP("Arg3", ARGP_ARG3, ARGI_ARG3, + ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, + AML_TYPE_METHOD_ARGUMENT, 0), +/* 18 */ ACPI_OP("Arg4", ARGP_ARG4, ARGI_ARG4, + ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, + AML_TYPE_METHOD_ARGUMENT, 0), +/* 19 */ ACPI_OP("Arg5", ARGP_ARG5, ARGI_ARG5, + ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, + AML_TYPE_METHOD_ARGUMENT, 0), +/* 1A */ ACPI_OP("Arg6", ARGP_ARG6, ARGI_ARG6, + ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, + AML_TYPE_METHOD_ARGUMENT, 0), +/* 1B */ ACPI_OP("Store", ARGP_STORE_OP, ARGI_STORE_OP, ACPI_TYPE_ANY, + AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R, + AML_FLAGS_EXEC_1A_1T_1R), +/* 1C */ ACPI_OP("RefOf", ARGP_REF_OF_OP, ARGI_REF_OF_OP, ACPI_TYPE_ANY, + AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_1R, + AML_FLAGS_EXEC_1A_0T_1R), +/* 1D */ ACPI_OP("Add", ARGP_ADD_OP, ARGI_ADD_OP, ACPI_TYPE_ANY, + AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R, + AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT), +/* 1E */ ACPI_OP("Concatenate", ARGP_CONCAT_OP, ARGI_CONCAT_OP, + ACPI_TYPE_ANY, AML_CLASS_EXECUTE, + AML_TYPE_EXEC_2A_1T_1R, + AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT), +/* 1F */ ACPI_OP("Subtract", ARGP_SUBTRACT_OP, ARGI_SUBTRACT_OP, + ACPI_TYPE_ANY, AML_CLASS_EXECUTE, + AML_TYPE_EXEC_2A_1T_1R, + AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT), +/* 20 */ ACPI_OP("Increment", ARGP_INCREMENT_OP, ARGI_INCREMENT_OP, + ACPI_TYPE_ANY, AML_CLASS_EXECUTE, + AML_TYPE_EXEC_1A_0T_1R, + AML_FLAGS_EXEC_1A_0T_1R | AML_CONSTANT), +/* 21 */ ACPI_OP("Decrement", ARGP_DECREMENT_OP, ARGI_DECREMENT_OP, + ACPI_TYPE_ANY, AML_CLASS_EXECUTE, + AML_TYPE_EXEC_1A_0T_1R, + AML_FLAGS_EXEC_1A_0T_1R | AML_CONSTANT), +/* 22 */ ACPI_OP("Multiply", ARGP_MULTIPLY_OP, ARGI_MULTIPLY_OP, + ACPI_TYPE_ANY, AML_CLASS_EXECUTE, + AML_TYPE_EXEC_2A_1T_1R, + AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT), +/* 23 */ ACPI_OP("Divide", ARGP_DIVIDE_OP, ARGI_DIVIDE_OP, + ACPI_TYPE_ANY, AML_CLASS_EXECUTE, + AML_TYPE_EXEC_2A_2T_1R, + AML_FLAGS_EXEC_2A_2T_1R | AML_CONSTANT), +/* 24 */ ACPI_OP("ShiftLeft", ARGP_SHIFT_LEFT_OP, ARGI_SHIFT_LEFT_OP, + ACPI_TYPE_ANY, AML_CLASS_EXECUTE, + AML_TYPE_EXEC_2A_1T_1R, + AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT), +/* 25 */ ACPI_OP("ShiftRight", ARGP_SHIFT_RIGHT_OP, ARGI_SHIFT_RIGHT_OP, + ACPI_TYPE_ANY, AML_CLASS_EXECUTE, + AML_TYPE_EXEC_2A_1T_1R, + AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT), +/* 26 */ ACPI_OP("And", ARGP_BIT_AND_OP, ARGI_BIT_AND_OP, ACPI_TYPE_ANY, + AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R, + AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT), +/* 27 */ ACPI_OP("NAnd", ARGP_BIT_NAND_OP, ARGI_BIT_NAND_OP, + ACPI_TYPE_ANY, AML_CLASS_EXECUTE, + AML_TYPE_EXEC_2A_1T_1R, + AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT), +/* 28 */ ACPI_OP("Or", ARGP_BIT_OR_OP, ARGI_BIT_OR_OP, ACPI_TYPE_ANY, + AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R, + AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT), +/* 29 */ ACPI_OP("NOr", ARGP_BIT_NOR_OP, ARGI_BIT_NOR_OP, ACPI_TYPE_ANY, + AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R, + AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT), +/* 2A */ ACPI_OP("XOr", ARGP_BIT_XOR_OP, ARGI_BIT_XOR_OP, ACPI_TYPE_ANY, + AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R, + AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT), +/* 2B */ ACPI_OP("Not", ARGP_BIT_NOT_OP, ARGI_BIT_NOT_OP, ACPI_TYPE_ANY, + AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R, + AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT), +/* 2C */ ACPI_OP("FindSetLeftBit", ARGP_FIND_SET_LEFT_BIT_OP, + ARGI_FIND_SET_LEFT_BIT_OP, ACPI_TYPE_ANY, + AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R, + AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT), +/* 2D */ ACPI_OP("FindSetRightBit", ARGP_FIND_SET_RIGHT_BIT_OP, + ARGI_FIND_SET_RIGHT_BIT_OP, ACPI_TYPE_ANY, + AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R, + AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT), +/* 2E */ ACPI_OP("DerefOf", ARGP_DEREF_OF_OP, ARGI_DEREF_OF_OP, + ACPI_TYPE_ANY, AML_CLASS_EXECUTE, + AML_TYPE_EXEC_1A_0T_1R, AML_FLAGS_EXEC_1A_0T_1R), +/* 2F */ ACPI_OP("Notify", ARGP_NOTIFY_OP, ARGI_NOTIFY_OP, + ACPI_TYPE_ANY, AML_CLASS_EXECUTE, + AML_TYPE_EXEC_2A_0T_0R, AML_FLAGS_EXEC_2A_0T_0R), +/* 30 */ ACPI_OP("SizeOf", ARGP_SIZE_OF_OP, ARGI_SIZE_OF_OP, + ACPI_TYPE_ANY, AML_CLASS_EXECUTE, + AML_TYPE_EXEC_1A_0T_1R, + AML_FLAGS_EXEC_1A_0T_1R | AML_NO_OPERAND_RESOLVE), +/* 31 */ ACPI_OP("Index", ARGP_INDEX_OP, ARGI_INDEX_OP, ACPI_TYPE_ANY, + AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R, + AML_FLAGS_EXEC_2A_1T_1R), +/* 32 */ ACPI_OP("Match", ARGP_MATCH_OP, ARGI_MATCH_OP, ACPI_TYPE_ANY, + AML_CLASS_EXECUTE, AML_TYPE_EXEC_6A_0T_1R, + AML_FLAGS_EXEC_6A_0T_1R | AML_CONSTANT), +/* 33 */ ACPI_OP("CreateDWordField", ARGP_CREATE_DWORD_FIELD_OP, + ARGI_CREATE_DWORD_FIELD_OP, + ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE, + AML_TYPE_CREATE_FIELD, + AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE | + AML_DEFER | AML_CREATE), +/* 34 */ ACPI_OP("CreateWordField", ARGP_CREATE_WORD_FIELD_OP, + ARGI_CREATE_WORD_FIELD_OP, + ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE, + AML_TYPE_CREATE_FIELD, + AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE | + AML_DEFER | AML_CREATE), +/* 35 */ ACPI_OP("CreateByteField", ARGP_CREATE_BYTE_FIELD_OP, + ARGI_CREATE_BYTE_FIELD_OP, + ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE, + AML_TYPE_CREATE_FIELD, + AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE | + AML_DEFER | AML_CREATE), +/* 36 */ ACPI_OP("CreateBitField", ARGP_CREATE_BIT_FIELD_OP, + ARGI_CREATE_BIT_FIELD_OP, + ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE, + AML_TYPE_CREATE_FIELD, + AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE | + AML_DEFER | AML_CREATE), +/* 37 */ ACPI_OP("ObjectType", ARGP_TYPE_OP, ARGI_TYPE_OP, + ACPI_TYPE_ANY, AML_CLASS_EXECUTE, + AML_TYPE_EXEC_1A_0T_1R, + AML_FLAGS_EXEC_1A_0T_1R | AML_NO_OPERAND_RESOLVE), +/* 38 */ ACPI_OP("LAnd", ARGP_LAND_OP, ARGI_LAND_OP, ACPI_TYPE_ANY, + AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R, + AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL_NUMERIC | AML_CONSTANT), +/* 39 */ ACPI_OP("LOr", ARGP_LOR_OP, ARGI_LOR_OP, ACPI_TYPE_ANY, + AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R, + AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL_NUMERIC | AML_CONSTANT), +/* 3A */ ACPI_OP("LNot", ARGP_LNOT_OP, ARGI_LNOT_OP, ACPI_TYPE_ANY, + AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_1R, + AML_FLAGS_EXEC_1A_0T_1R | AML_CONSTANT), +/* 3B */ ACPI_OP("LEqual", ARGP_LEQUAL_OP, ARGI_LEQUAL_OP, + ACPI_TYPE_ANY, AML_CLASS_EXECUTE, + AML_TYPE_EXEC_2A_0T_1R, + AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL | AML_CONSTANT), +/* 3C */ ACPI_OP("LGreater", ARGP_LGREATER_OP, ARGI_LGREATER_OP, + ACPI_TYPE_ANY, AML_CLASS_EXECUTE, + AML_TYPE_EXEC_2A_0T_1R, + AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL | AML_CONSTANT), +/* 3D */ ACPI_OP("LLess", ARGP_LLESS_OP, ARGI_LLESS_OP, ACPI_TYPE_ANY, + AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R, + AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL | AML_CONSTANT), +/* 3E */ ACPI_OP("If", ARGP_IF_OP, ARGI_IF_OP, ACPI_TYPE_ANY, + AML_CLASS_CONTROL, AML_TYPE_CONTROL, AML_HAS_ARGS), +/* 3F */ ACPI_OP("Else", ARGP_ELSE_OP, ARGI_ELSE_OP, ACPI_TYPE_ANY, + AML_CLASS_CONTROL, AML_TYPE_CONTROL, AML_HAS_ARGS), +/* 40 */ ACPI_OP("While", ARGP_WHILE_OP, ARGI_WHILE_OP, ACPI_TYPE_ANY, + AML_CLASS_CONTROL, AML_TYPE_CONTROL, AML_HAS_ARGS), +/* 41 */ ACPI_OP("Noop", ARGP_NOOP_OP, ARGI_NOOP_OP, ACPI_TYPE_ANY, + AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0), +/* 42 */ ACPI_OP("Return", ARGP_RETURN_OP, ARGI_RETURN_OP, + ACPI_TYPE_ANY, AML_CLASS_CONTROL, + AML_TYPE_CONTROL, AML_HAS_ARGS), +/* 43 */ ACPI_OP("Break", ARGP_BREAK_OP, ARGI_BREAK_OP, ACPI_TYPE_ANY, + AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0), +/* 44 */ ACPI_OP("BreakPoint", ARGP_BREAK_POINT_OP, ARGI_BREAK_POINT_OP, + ACPI_TYPE_ANY, AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0), +/* 45 */ ACPI_OP("Ones", ARGP_ONES_OP, ARGI_ONES_OP, ACPI_TYPE_INTEGER, + AML_CLASS_ARGUMENT, AML_TYPE_CONSTANT, AML_CONSTANT), + +/* Prefixed opcodes (Two-byte opcodes with a prefix op) */ + +/* 46 */ ACPI_OP("Mutex", ARGP_MUTEX_OP, ARGI_MUTEX_OP, ACPI_TYPE_MUTEX, + AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_SIMPLE, + AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | + AML_NSNODE | AML_NAMED), +/* 47 */ ACPI_OP("Event", ARGP_EVENT_OP, ARGI_EVENT_OP, ACPI_TYPE_EVENT, + AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_SIMPLE, + AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE | AML_NAMED), +/* 48 */ ACPI_OP("CondRefOf", ARGP_COND_REF_OF_OP, ARGI_COND_REF_OF_OP, + ACPI_TYPE_ANY, AML_CLASS_EXECUTE, + AML_TYPE_EXEC_1A_1T_1R, AML_FLAGS_EXEC_1A_1T_1R), +/* 49 */ ACPI_OP("CreateField", ARGP_CREATE_FIELD_OP, + ARGI_CREATE_FIELD_OP, ACPI_TYPE_BUFFER_FIELD, + AML_CLASS_CREATE, AML_TYPE_CREATE_FIELD, + AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE | + AML_DEFER | AML_FIELD | AML_CREATE), +/* 4A */ ACPI_OP("Load", ARGP_LOAD_OP, ARGI_LOAD_OP, ACPI_TYPE_ANY, + AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_0R, + AML_FLAGS_EXEC_1A_1T_0R), +/* 4B */ ACPI_OP("Stall", ARGP_STALL_OP, ARGI_STALL_OP, ACPI_TYPE_ANY, + AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_0R, + AML_FLAGS_EXEC_1A_0T_0R), +/* 4C */ ACPI_OP("Sleep", ARGP_SLEEP_OP, ARGI_SLEEP_OP, ACPI_TYPE_ANY, + AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_0R, + AML_FLAGS_EXEC_1A_0T_0R), +/* 4D */ ACPI_OP("Acquire", ARGP_ACQUIRE_OP, ARGI_ACQUIRE_OP, + ACPI_TYPE_ANY, AML_CLASS_EXECUTE, + AML_TYPE_EXEC_2A_0T_1R, AML_FLAGS_EXEC_2A_0T_1R), +/* 4E */ ACPI_OP("Signal", ARGP_SIGNAL_OP, ARGI_SIGNAL_OP, + ACPI_TYPE_ANY, AML_CLASS_EXECUTE, + AML_TYPE_EXEC_1A_0T_0R, AML_FLAGS_EXEC_1A_0T_0R), +/* 4F */ ACPI_OP("Wait", ARGP_WAIT_OP, ARGI_WAIT_OP, ACPI_TYPE_ANY, + AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R, + AML_FLAGS_EXEC_2A_0T_1R), +/* 50 */ ACPI_OP("Reset", ARGP_RESET_OP, ARGI_RESET_OP, ACPI_TYPE_ANY, + AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_0R, + AML_FLAGS_EXEC_1A_0T_0R), +/* 51 */ ACPI_OP("Release", ARGP_RELEASE_OP, ARGI_RELEASE_OP, + ACPI_TYPE_ANY, AML_CLASS_EXECUTE, + AML_TYPE_EXEC_1A_0T_0R, AML_FLAGS_EXEC_1A_0T_0R), +/* 52 */ ACPI_OP("FromBCD", ARGP_FROM_BCD_OP, ARGI_FROM_BCD_OP, + ACPI_TYPE_ANY, AML_CLASS_EXECUTE, + AML_TYPE_EXEC_1A_1T_1R, + AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT), +/* 53 */ ACPI_OP("ToBCD", ARGP_TO_BCD_OP, ARGI_TO_BCD_OP, ACPI_TYPE_ANY, + AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R, + AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT), +/* 54 */ ACPI_OP("Unload", ARGP_UNLOAD_OP, ARGI_UNLOAD_OP, + ACPI_TYPE_ANY, AML_CLASS_EXECUTE, + AML_TYPE_EXEC_1A_0T_0R, AML_FLAGS_EXEC_1A_0T_0R), +/* 55 */ ACPI_OP("Revision", ARGP_REVISION_OP, ARGI_REVISION_OP, + ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT, + AML_TYPE_CONSTANT, 0), +/* 56 */ ACPI_OP("Debug", ARGP_DEBUG_OP, ARGI_DEBUG_OP, + ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, + AML_TYPE_CONSTANT, 0), +/* 57 */ ACPI_OP("Fatal", ARGP_FATAL_OP, ARGI_FATAL_OP, ACPI_TYPE_ANY, + AML_CLASS_EXECUTE, AML_TYPE_EXEC_3A_0T_0R, + AML_FLAGS_EXEC_3A_0T_0R), +/* 58 */ ACPI_OP("OperationRegion", ARGP_REGION_OP, ARGI_REGION_OP, + ACPI_TYPE_REGION, AML_CLASS_NAMED_OBJECT, + AML_TYPE_NAMED_COMPLEX, + AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | + AML_NSNODE | AML_NAMED | AML_DEFER), +/* 59 */ ACPI_OP("Field", ARGP_FIELD_OP, ARGI_FIELD_OP, ACPI_TYPE_ANY, + AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_FIELD, + AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_FIELD), +/* 5A */ ACPI_OP("Device", ARGP_DEVICE_OP, ARGI_DEVICE_OP, + ACPI_TYPE_DEVICE, AML_CLASS_NAMED_OBJECT, + AML_TYPE_NAMED_NO_OBJ, + AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | + AML_NSNODE | AML_NAMED), +/* 5B */ ACPI_OP("Processor", ARGP_PROCESSOR_OP, ARGI_PROCESSOR_OP, + ACPI_TYPE_PROCESSOR, AML_CLASS_NAMED_OBJECT, + AML_TYPE_NAMED_SIMPLE, + AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | + AML_NSNODE | AML_NAMED), +/* 5C */ ACPI_OP("PowerResource", ARGP_POWER_RES_OP, ARGI_POWER_RES_OP, + ACPI_TYPE_POWER, AML_CLASS_NAMED_OBJECT, + AML_TYPE_NAMED_SIMPLE, + AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | + AML_NSNODE | AML_NAMED), +/* 5D */ ACPI_OP("ThermalZone", ARGP_THERMAL_ZONE_OP, + ARGI_THERMAL_ZONE_OP, ACPI_TYPE_THERMAL, + AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_NO_OBJ, + AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | + AML_NSNODE | AML_NAMED), +/* 5E */ ACPI_OP("IndexField", ARGP_INDEX_FIELD_OP, ARGI_INDEX_FIELD_OP, + ACPI_TYPE_ANY, AML_CLASS_NAMED_OBJECT, + AML_TYPE_NAMED_FIELD, + AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_FIELD), +/* 5F */ ACPI_OP("BankField", ARGP_BANK_FIELD_OP, ARGI_BANK_FIELD_OP, + ACPI_TYPE_LOCAL_BANK_FIELD, AML_CLASS_NAMED_OBJECT, + AML_TYPE_NAMED_FIELD, + AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_FIELD | + AML_DEFER), + +/* Internal opcodes that map to invalid AML opcodes */ + +/* 60 */ ACPI_OP("LNotEqual", ARGP_LNOTEQUAL_OP, ARGI_LNOTEQUAL_OP, + ACPI_TYPE_ANY, AML_CLASS_INTERNAL, + AML_TYPE_BOGUS, AML_HAS_ARGS | AML_CONSTANT), +/* 61 */ ACPI_OP("LLessEqual", ARGP_LLESSEQUAL_OP, ARGI_LLESSEQUAL_OP, + ACPI_TYPE_ANY, AML_CLASS_INTERNAL, + AML_TYPE_BOGUS, AML_HAS_ARGS | AML_CONSTANT), +/* 62 */ ACPI_OP("LGreaterEqual", ARGP_LGREATEREQUAL_OP, + ARGI_LGREATEREQUAL_OP, ACPI_TYPE_ANY, + AML_CLASS_INTERNAL, AML_TYPE_BOGUS, + AML_HAS_ARGS | AML_CONSTANT), +/* 63 */ ACPI_OP("-NamePath-", ARGP_NAMEPATH_OP, ARGI_NAMEPATH_OP, + ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, + AML_TYPE_LITERAL, AML_NSOBJECT | AML_NSNODE), +/* 64 */ ACPI_OP("-MethodCall-", ARGP_METHODCALL_OP, ARGI_METHODCALL_OP, + ACPI_TYPE_METHOD, AML_CLASS_METHOD_CALL, + AML_TYPE_METHOD_CALL, + AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE), +/* 65 */ ACPI_OP("-ByteList-", ARGP_BYTELIST_OP, ARGI_BYTELIST_OP, + ACPI_TYPE_ANY, AML_CLASS_ARGUMENT, + AML_TYPE_LITERAL, 0), +/* 66 */ ACPI_OP("-ReservedField-", ARGP_RESERVEDFIELD_OP, + ARGI_RESERVEDFIELD_OP, ACPI_TYPE_ANY, + AML_CLASS_INTERNAL, AML_TYPE_BOGUS, 0), +/* 67 */ ACPI_OP("-NamedField-", ARGP_NAMEDFIELD_OP, ARGI_NAMEDFIELD_OP, + ACPI_TYPE_ANY, AML_CLASS_INTERNAL, + AML_TYPE_BOGUS, + AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE | AML_NAMED), +/* 68 */ ACPI_OP("-AccessField-", ARGP_ACCESSFIELD_OP, + ARGI_ACCESSFIELD_OP, ACPI_TYPE_ANY, + AML_CLASS_INTERNAL, AML_TYPE_BOGUS, 0), +/* 69 */ ACPI_OP("-StaticString", ARGP_STATICSTRING_OP, + ARGI_STATICSTRING_OP, ACPI_TYPE_ANY, + AML_CLASS_INTERNAL, AML_TYPE_BOGUS, 0), +/* 6A */ ACPI_OP("-Return Value-", ARG_NONE, ARG_NONE, ACPI_TYPE_ANY, + AML_CLASS_RETURN_VALUE, AML_TYPE_RETURN, + AML_HAS_ARGS | AML_HAS_RETVAL), +/* 6B */ ACPI_OP("-UNKNOWN_OP-", ARG_NONE, ARG_NONE, ACPI_TYPE_INVALID, + AML_CLASS_UNKNOWN, AML_TYPE_BOGUS, AML_HAS_ARGS), +/* 6C */ ACPI_OP("-ASCII_ONLY-", ARG_NONE, ARG_NONE, ACPI_TYPE_ANY, + AML_CLASS_ASCII, AML_TYPE_BOGUS, AML_HAS_ARGS), +/* 6D */ ACPI_OP("-PREFIX_ONLY-", ARG_NONE, ARG_NONE, ACPI_TYPE_ANY, + AML_CLASS_PREFIX, AML_TYPE_BOGUS, AML_HAS_ARGS), + +/* ACPI 2.0 opcodes */ + +/* 6E */ ACPI_OP("QwordConst", ARGP_QWORD_OP, ARGI_QWORD_OP, + ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT, + AML_TYPE_LITERAL, AML_CONSTANT), + /* 6F */ ACPI_OP("Package", /* Var */ ARGP_VAR_PACKAGE_OP, + ARGI_VAR_PACKAGE_OP, ACPI_TYPE_PACKAGE, + AML_CLASS_CREATE, AML_TYPE_CREATE_OBJECT, + AML_HAS_ARGS | AML_DEFER), +/* 70 */ ACPI_OP("ConcatenateResTemplate", ARGP_CONCAT_RES_OP, + ARGI_CONCAT_RES_OP, ACPI_TYPE_ANY, + AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R, + AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT), +/* 71 */ ACPI_OP("Mod", ARGP_MOD_OP, ARGI_MOD_OP, ACPI_TYPE_ANY, + AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R, + AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT), +/* 72 */ ACPI_OP("CreateQWordField", ARGP_CREATE_QWORD_FIELD_OP, + ARGI_CREATE_QWORD_FIELD_OP, + ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE, + AML_TYPE_CREATE_FIELD, + AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE | + AML_DEFER | AML_CREATE), +/* 73 */ ACPI_OP("ToBuffer", ARGP_TO_BUFFER_OP, ARGI_TO_BUFFER_OP, + ACPI_TYPE_ANY, AML_CLASS_EXECUTE, + AML_TYPE_EXEC_1A_1T_1R, + AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT), +/* 74 */ ACPI_OP("ToDecimalString", ARGP_TO_DEC_STR_OP, + ARGI_TO_DEC_STR_OP, ACPI_TYPE_ANY, + AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R, + AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT), +/* 75 */ ACPI_OP("ToHexString", ARGP_TO_HEX_STR_OP, ARGI_TO_HEX_STR_OP, + ACPI_TYPE_ANY, AML_CLASS_EXECUTE, + AML_TYPE_EXEC_1A_1T_1R, + AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT), +/* 76 */ ACPI_OP("ToInteger", ARGP_TO_INTEGER_OP, ARGI_TO_INTEGER_OP, + ACPI_TYPE_ANY, AML_CLASS_EXECUTE, + AML_TYPE_EXEC_1A_1T_1R, + AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT), +/* 77 */ ACPI_OP("ToString", ARGP_TO_STRING_OP, ARGI_TO_STRING_OP, + ACPI_TYPE_ANY, AML_CLASS_EXECUTE, + AML_TYPE_EXEC_2A_1T_1R, + AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT), +/* 78 */ ACPI_OP("CopyObject", ARGP_COPY_OP, ARGI_COPY_OP, + ACPI_TYPE_ANY, AML_CLASS_EXECUTE, + AML_TYPE_EXEC_1A_1T_1R, AML_FLAGS_EXEC_1A_1T_1R), +/* 79 */ ACPI_OP("Mid", ARGP_MID_OP, ARGI_MID_OP, ACPI_TYPE_ANY, + AML_CLASS_EXECUTE, AML_TYPE_EXEC_3A_1T_1R, + AML_FLAGS_EXEC_3A_1T_1R | AML_CONSTANT), +/* 7A */ ACPI_OP("Continue", ARGP_CONTINUE_OP, ARGI_CONTINUE_OP, + ACPI_TYPE_ANY, AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0), +/* 7B */ ACPI_OP("LoadTable", ARGP_LOAD_TABLE_OP, ARGI_LOAD_TABLE_OP, + ACPI_TYPE_ANY, AML_CLASS_EXECUTE, + AML_TYPE_EXEC_6A_0T_1R, AML_FLAGS_EXEC_6A_0T_1R), +/* 7C */ ACPI_OP("DataTableRegion", ARGP_DATA_REGION_OP, + ARGI_DATA_REGION_OP, ACPI_TYPE_REGION, + AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_COMPLEX, + AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | + AML_NSNODE | AML_NAMED | AML_DEFER), +/* 7D */ ACPI_OP("[EvalSubTree]", ARGP_SCOPE_OP, ARGI_SCOPE_OP, + ACPI_TYPE_ANY, AML_CLASS_NAMED_OBJECT, + AML_TYPE_NAMED_NO_OBJ, + AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE), + +/* ACPI 3.0 opcodes */ + +/* 7E */ ACPI_OP("Timer", ARGP_TIMER_OP, ARGI_TIMER_OP, ACPI_TYPE_ANY, + AML_CLASS_EXECUTE, AML_TYPE_EXEC_0A_0T_1R, + AML_FLAGS_EXEC_0A_0T_1R) + +/*! [End] no source code translation !*/ +}; + +/* + * This table is directly indexed by the opcodes, and returns an + * index into the table above + */ +static const u8 acpi_gbl_short_op_index[256] = { +/* 0 1 2 3 4 5 6 7 */ +/* 8 9 A B C D E F */ +/* 0x00 */ 0x00, 0x01, _UNK, _UNK, _UNK, _UNK, 0x02, _UNK, +/* 0x08 */ 0x03, _UNK, 0x04, 0x05, 0x06, 0x07, 0x6E, _UNK, +/* 0x10 */ 0x08, 0x09, 0x0a, 0x6F, 0x0b, _UNK, _UNK, _UNK, +/* 0x18 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, +/* 0x20 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, +/* 0x28 */ _UNK, _UNK, _UNK, _UNK, _UNK, 0x63, _PFX, _PFX, +/* 0x30 */ 0x67, 0x66, 0x68, 0x65, 0x69, 0x64, 0x6A, 0x7D, +/* 0x38 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, +/* 0x40 */ _UNK, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, +/* 0x48 */ _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, +/* 0x50 */ _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, +/* 0x58 */ _ASC, _ASC, _ASC, _UNK, _PFX, _UNK, _PFX, _ASC, +/* 0x60 */ 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, +/* 0x68 */ 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, _UNK, +/* 0x70 */ 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, +/* 0x78 */ 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, +/* 0x80 */ 0x2b, 0x2c, 0x2d, 0x2e, 0x70, 0x71, 0x2f, 0x30, +/* 0x88 */ 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x72, +/* 0x90 */ 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x73, 0x74, +/* 0x98 */ 0x75, 0x76, _UNK, _UNK, 0x77, 0x78, 0x79, 0x7A, +/* 0xA0 */ 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x60, 0x61, +/* 0xA8 */ 0x62, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, +/* 0xB0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, +/* 0xB8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, +/* 0xC0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, +/* 0xC8 */ _UNK, _UNK, _UNK, _UNK, 0x44, _UNK, _UNK, _UNK, +/* 0xD0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, +/* 0xD8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, +/* 0xE0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, +/* 0xE8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, +/* 0xF0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, +/* 0xF8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 0x45, +}; + +/* + * This table is indexed by the second opcode of the extended opcode + * pair. It returns an index into the opcode table (acpi_gbl_aml_op_info) + */ +static const u8 acpi_gbl_long_op_index[NUM_EXTENDED_OPCODE] = { +/* 0 1 2 3 4 5 6 7 */ +/* 8 9 A B C D E F */ +/* 0x00 */ _UNK, 0x46, 0x47, _UNK, _UNK, _UNK, _UNK, _UNK, +/* 0x08 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, +/* 0x10 */ _UNK, _UNK, 0x48, 0x49, _UNK, _UNK, _UNK, _UNK, +/* 0x18 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 0x7B, +/* 0x20 */ 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51, +/* 0x28 */ 0x52, 0x53, 0x54, _UNK, _UNK, _UNK, _UNK, _UNK, +/* 0x30 */ 0x55, 0x56, 0x57, 0x7e, _UNK, _UNK, _UNK, _UNK, +/* 0x38 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, +/* 0x40 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, +/* 0x48 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, +/* 0x50 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, +/* 0x58 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, +/* 0x60 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, +/* 0x68 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, +/* 0x70 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, +/* 0x78 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, +/* 0x80 */ 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, +/* 0x88 */ 0x7C, +}; + +/******************************************************************************* + * + * FUNCTION: acpi_ps_get_opcode_info + * + * PARAMETERS: Opcode - The AML opcode + * + * RETURN: A pointer to the info about the opcode. + * + * DESCRIPTION: Find AML opcode description based on the opcode. + * NOTE: This procedure must ALWAYS return a valid pointer! + * + ******************************************************************************/ + +const struct acpi_opcode_info *acpi_ps_get_opcode_info(u16 opcode) +{ + ACPI_FUNCTION_NAME(ps_get_opcode_info); + + /* + * Detect normal 8-bit opcode or extended 16-bit opcode + */ + if (!(opcode & 0xFF00)) { + + /* Simple (8-bit) opcode: 0-255, can't index beyond table */ + + return (&acpi_gbl_aml_op_info + [acpi_gbl_short_op_index[(u8) opcode]]); + } + + if (((opcode & 0xFF00) == AML_EXTENDED_OPCODE) && + (((u8) opcode) <= MAX_EXTENDED_OPCODE)) { + + /* Valid extended (16-bit) opcode */ + + return (&acpi_gbl_aml_op_info + [acpi_gbl_long_op_index[(u8) opcode]]); + } + + /* Unknown AML opcode */ + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Unknown AML opcode [%4.4X]\n", opcode)); + + return (&acpi_gbl_aml_op_info[_UNK]); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_get_opcode_name + * + * PARAMETERS: Opcode - The AML opcode + * + * RETURN: A pointer to the name of the opcode (ASCII String) + * Note: Never returns NULL. + * + * DESCRIPTION: Translate an opcode into a human-readable string + * + ******************************************************************************/ + +char *acpi_ps_get_opcode_name(u16 opcode) +{ +#if defined(ACPI_DISASSEMBLER) || defined (ACPI_DEBUG_OUTPUT) + + const struct acpi_opcode_info *op; + + op = acpi_ps_get_opcode_info(opcode); + + /* Always guaranteed to return a valid pointer */ + + return (op->name); + +#else + return ("OpcodeName unavailable"); + +#endif +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_get_argument_count + * + * PARAMETERS: op_type - Type associated with the AML opcode + * + * RETURN: Argument count + * + * DESCRIPTION: Obtain the number of expected arguments for an AML opcode + * + ******************************************************************************/ + +u8 acpi_ps_get_argument_count(u32 op_type) +{ + + if (op_type <= AML_TYPE_EXEC_6A_0T_1R) { + return (acpi_gbl_argument_count[op_type]); + } + + return (0); +} diff --git a/drivers/acpi/acpica/psparse.c b/drivers/acpi/acpica/psparse.c new file mode 100644 index 000000000000..9da48fdb811a --- /dev/null +++ b/drivers/acpi/acpica/psparse.c @@ -0,0 +1,701 @@ +/****************************************************************************** + * + * Module Name: psparse - Parser top level AML parse routines + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +/* + * Parse the AML and build an operation tree as most interpreters, + * like Perl, do. Parsing is done by hand rather than with a YACC + * generated parser to tightly constrain stack and dynamic memory + * usage. At the same time, parsing is kept flexible and the code + * fairly compact by parsing based on a list of AML opcode + * templates in aml_op_info[] + */ + +#include +#include +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_PARSER +ACPI_MODULE_NAME("psparse") + +/******************************************************************************* + * + * FUNCTION: acpi_ps_get_opcode_size + * + * PARAMETERS: Opcode - An AML opcode + * + * RETURN: Size of the opcode, in bytes (1 or 2) + * + * DESCRIPTION: Get the size of the current opcode. + * + ******************************************************************************/ +u32 acpi_ps_get_opcode_size(u32 opcode) +{ + + /* Extended (2-byte) opcode if > 255 */ + + if (opcode > 0x00FF) { + return (2); + } + + /* Otherwise, just a single byte opcode */ + + return (1); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_peek_opcode + * + * PARAMETERS: parser_state - A parser state object + * + * RETURN: Next AML opcode + * + * DESCRIPTION: Get next AML opcode (without incrementing AML pointer) + * + ******************************************************************************/ + +u16 acpi_ps_peek_opcode(struct acpi_parse_state * parser_state) +{ + u8 *aml; + u16 opcode; + + aml = parser_state->aml; + opcode = (u16) ACPI_GET8(aml); + + if (opcode == AML_EXTENDED_OP_PREFIX) { + + /* Extended opcode, get the second opcode byte */ + + aml++; + opcode = (u16) ((opcode << 8) | ACPI_GET8(aml)); + } + + return (opcode); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_complete_this_op + * + * PARAMETERS: walk_state - Current State + * Op - Op to complete + * + * RETURN: Status + * + * DESCRIPTION: Perform any cleanup at the completion of an Op. + * + ******************************************************************************/ + +acpi_status +acpi_ps_complete_this_op(struct acpi_walk_state * walk_state, + union acpi_parse_object * op) +{ + union acpi_parse_object *prev; + union acpi_parse_object *next; + const struct acpi_opcode_info *parent_info; + union acpi_parse_object *replacement_op = NULL; + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE_PTR(ps_complete_this_op, op); + + /* Check for null Op, can happen if AML code is corrupt */ + + if (!op) { + return_ACPI_STATUS(AE_OK); /* OK for now */ + } + + /* Delete this op and the subtree below it if asked to */ + + if (((walk_state->parse_flags & ACPI_PARSE_TREE_MASK) != + ACPI_PARSE_DELETE_TREE) + || (walk_state->op_info->class == AML_CLASS_ARGUMENT)) { + return_ACPI_STATUS(AE_OK); + } + + /* Make sure that we only delete this subtree */ + + if (op->common.parent) { + prev = op->common.parent->common.value.arg; + if (!prev) { + + /* Nothing more to do */ + + goto cleanup; + } + + /* + * Check if we need to replace the operator and its subtree + * with a return value op (placeholder op) + */ + parent_info = + acpi_ps_get_opcode_info(op->common.parent->common. + aml_opcode); + + switch (parent_info->class) { + case AML_CLASS_CONTROL: + break; + + case AML_CLASS_CREATE: + + /* + * These opcodes contain term_arg operands. The current + * op must be replaced by a placeholder return op + */ + replacement_op = + acpi_ps_alloc_op(AML_INT_RETURN_VALUE_OP); + if (!replacement_op) { + status = AE_NO_MEMORY; + } + break; + + case AML_CLASS_NAMED_OBJECT: + + /* + * These opcodes contain term_arg operands. The current + * op must be replaced by a placeholder return op + */ + if ((op->common.parent->common.aml_opcode == + AML_REGION_OP) + || (op->common.parent->common.aml_opcode == + AML_DATA_REGION_OP) + || (op->common.parent->common.aml_opcode == + AML_BUFFER_OP) + || (op->common.parent->common.aml_opcode == + AML_PACKAGE_OP) + || (op->common.parent->common.aml_opcode == + AML_BANK_FIELD_OP) + || (op->common.parent->common.aml_opcode == + AML_VAR_PACKAGE_OP)) { + replacement_op = + acpi_ps_alloc_op(AML_INT_RETURN_VALUE_OP); + if (!replacement_op) { + status = AE_NO_MEMORY; + } + } else + if ((op->common.parent->common.aml_opcode == + AML_NAME_OP) + && (walk_state->pass_number <= + ACPI_IMODE_LOAD_PASS2)) { + if ((op->common.aml_opcode == AML_BUFFER_OP) + || (op->common.aml_opcode == AML_PACKAGE_OP) + || (op->common.aml_opcode == + AML_VAR_PACKAGE_OP)) { + replacement_op = + acpi_ps_alloc_op(op->common. + aml_opcode); + if (!replacement_op) { + status = AE_NO_MEMORY; + } else { + replacement_op->named.data = + op->named.data; + replacement_op->named.length = + op->named.length; + } + } + } + break; + + default: + + replacement_op = + acpi_ps_alloc_op(AML_INT_RETURN_VALUE_OP); + if (!replacement_op) { + status = AE_NO_MEMORY; + } + } + + /* We must unlink this op from the parent tree */ + + if (prev == op) { + + /* This op is the first in the list */ + + if (replacement_op) { + replacement_op->common.parent = + op->common.parent; + replacement_op->common.value.arg = NULL; + replacement_op->common.node = op->common.node; + op->common.parent->common.value.arg = + replacement_op; + replacement_op->common.next = op->common.next; + } else { + op->common.parent->common.value.arg = + op->common.next; + } + } + + /* Search the parent list */ + + else + while (prev) { + + /* Traverse all siblings in the parent's argument list */ + + next = prev->common.next; + if (next == op) { + if (replacement_op) { + replacement_op->common.parent = + op->common.parent; + replacement_op->common.value. + arg = NULL; + replacement_op->common.node = + op->common.node; + prev->common.next = + replacement_op; + replacement_op->common.next = + op->common.next; + next = NULL; + } else { + prev->common.next = + op->common.next; + next = NULL; + } + } + prev = next; + } + } + + cleanup: + + /* Now we can actually delete the subtree rooted at Op */ + + acpi_ps_delete_parse_tree(op); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_next_parse_state + * + * PARAMETERS: walk_state - Current state + * Op - Current parse op + * callback_status - Status from previous operation + * + * RETURN: Status + * + * DESCRIPTION: Update the parser state based upon the return exception from + * the parser callback. + * + ******************************************************************************/ + +acpi_status +acpi_ps_next_parse_state(struct acpi_walk_state *walk_state, + union acpi_parse_object *op, + acpi_status callback_status) +{ + struct acpi_parse_state *parser_state = &walk_state->parser_state; + acpi_status status = AE_CTRL_PENDING; + + ACPI_FUNCTION_TRACE_PTR(ps_next_parse_state, op); + + switch (callback_status) { + case AE_CTRL_TERMINATE: + /* + * A control method was terminated via a RETURN statement. + * The walk of this method is complete. + */ + parser_state->aml = parser_state->aml_end; + status = AE_CTRL_TERMINATE; + break; + + case AE_CTRL_BREAK: + + parser_state->aml = walk_state->aml_last_while; + walk_state->control_state->common.value = FALSE; + status = AE_CTRL_BREAK; + break; + + case AE_CTRL_CONTINUE: + + parser_state->aml = walk_state->aml_last_while; + status = AE_CTRL_CONTINUE; + break; + + case AE_CTRL_PENDING: + + parser_state->aml = walk_state->aml_last_while; + break; + +#if 0 + case AE_CTRL_SKIP: + + parser_state->aml = parser_state->scope->parse_scope.pkg_end; + status = AE_OK; + break; +#endif + + case AE_CTRL_TRUE: + /* + * Predicate of an IF was true, and we are at the matching ELSE. + * Just close out this package + */ + parser_state->aml = acpi_ps_get_next_package_end(parser_state); + status = AE_CTRL_PENDING; + break; + + case AE_CTRL_FALSE: + /* + * Either an IF/WHILE Predicate was false or we encountered a BREAK + * opcode. In both cases, we do not execute the rest of the + * package; We simply close out the parent (finishing the walk of + * this branch of the tree) and continue execution at the parent + * level. + */ + parser_state->aml = parser_state->scope->parse_scope.pkg_end; + + /* In the case of a BREAK, just force a predicate (if any) to FALSE */ + + walk_state->control_state->common.value = FALSE; + status = AE_CTRL_END; + break; + + case AE_CTRL_TRANSFER: + + /* A method call (invocation) -- transfer control */ + + status = AE_CTRL_TRANSFER; + walk_state->prev_op = op; + walk_state->method_call_op = op; + walk_state->method_call_node = + (op->common.value.arg)->common.node; + + /* Will return value (if any) be used by the caller? */ + + walk_state->return_used = + acpi_ds_is_result_used(op, walk_state); + break; + + default: + + status = callback_status; + if ((callback_status & AE_CODE_MASK) == AE_CODE_CONTROL) { + status = AE_OK; + } + break; + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_parse_aml + * + * PARAMETERS: walk_state - Current state + * + * + * RETURN: Status + * + * DESCRIPTION: Parse raw AML and return a tree of ops + * + ******************************************************************************/ + +acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state) +{ + acpi_status status; + struct acpi_thread_state *thread; + struct acpi_thread_state *prev_walk_list = acpi_gbl_current_walk_list; + struct acpi_walk_state *previous_walk_state; + + ACPI_FUNCTION_TRACE(ps_parse_aml); + + ACPI_DEBUG_PRINT((ACPI_DB_PARSE, + "Entered with WalkState=%p Aml=%p size=%X\n", + walk_state, walk_state->parser_state.aml, + walk_state->parser_state.aml_size)); + + if (!walk_state->parser_state.aml) { + return_ACPI_STATUS(AE_NULL_OBJECT); + } + + /* Create and initialize a new thread state */ + + thread = acpi_ut_create_thread_state(); + if (!thread) { + if (walk_state->method_desc) { + + /* Executing a control method - additional cleanup */ + + acpi_ds_terminate_control_method( + walk_state->method_desc, walk_state); + } + + acpi_ds_delete_walk_state(walk_state); + return_ACPI_STATUS(AE_NO_MEMORY); + } + + walk_state->thread = thread; + + /* + * If executing a method, the starting sync_level is this method's + * sync_level + */ + if (walk_state->method_desc) { + walk_state->thread->current_sync_level = + walk_state->method_desc->method.sync_level; + } + + acpi_ds_push_walk_state(walk_state, thread); + + /* + * This global allows the AML debugger to get a handle to the currently + * executing control method. + */ + acpi_gbl_current_walk_list = thread; + + /* + * Execute the walk loop as long as there is a valid Walk State. This + * handles nested control method invocations without recursion. + */ + ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "State=%p\n", walk_state)); + + status = AE_OK; + while (walk_state) { + if (ACPI_SUCCESS(status)) { + /* + * The parse_loop executes AML until the method terminates + * or calls another method. + */ + status = acpi_ps_parse_loop(walk_state); + } + + ACPI_DEBUG_PRINT((ACPI_DB_PARSE, + "Completed one call to walk loop, %s State=%p\n", + acpi_format_exception(status), walk_state)); + + if (status == AE_CTRL_TRANSFER) { + /* + * A method call was detected. + * Transfer control to the called control method + */ + status = + acpi_ds_call_control_method(thread, walk_state, + NULL); + if (ACPI_FAILURE(status)) { + status = + acpi_ds_method_error(status, walk_state); + } + + /* + * If the transfer to the new method method call worked, a new walk + * state was created -- get it + */ + walk_state = acpi_ds_get_current_walk_state(thread); + continue; + } else if (status == AE_CTRL_TERMINATE) { + status = AE_OK; + } else if ((status != AE_OK) && (walk_state->method_desc)) { + + /* Either the method parse or actual execution failed */ + + ACPI_ERROR_METHOD("Method parse/execution failed", + walk_state->method_node, NULL, + status); + + /* Check for possible multi-thread reentrancy problem */ + + if ((status == AE_ALREADY_EXISTS) && + (!walk_state->method_desc->method.mutex)) { + ACPI_INFO((AE_INFO, + "Marking method %4.4s as Serialized because of AE_ALREADY_EXISTS error", + walk_state->method_node->name. + ascii)); + + /* + * Method tried to create an object twice. The probable cause is + * that the method cannot handle reentrancy. + * + * The method is marked not_serialized, but it tried to create + * a named object, causing the second thread entrance to fail. + * Workaround this problem by marking the method permanently + * as Serialized. + */ + walk_state->method_desc->method.method_flags |= + AML_METHOD_SERIALIZED; + walk_state->method_desc->method.sync_level = 0; + } + } + + /* We are done with this walk, move on to the parent if any */ + + walk_state = acpi_ds_pop_walk_state(thread); + + /* Reset the current scope to the beginning of scope stack */ + + acpi_ds_scope_stack_clear(walk_state); + + /* + * If we just returned from the execution of a control method or if we + * encountered an error during the method parse phase, there's lots of + * cleanup to do + */ + if (((walk_state->parse_flags & ACPI_PARSE_MODE_MASK) == + ACPI_PARSE_EXECUTE) || (ACPI_FAILURE(status))) { + acpi_ds_terminate_control_method(walk_state-> + method_desc, + walk_state); + } + + /* Delete this walk state and all linked control states */ + + acpi_ps_cleanup_scope(&walk_state->parser_state); + previous_walk_state = walk_state; + + ACPI_DEBUG_PRINT((ACPI_DB_PARSE, + "ReturnValue=%p, ImplicitValue=%p State=%p\n", + walk_state->return_desc, + walk_state->implicit_return_obj, walk_state)); + + /* Check if we have restarted a preempted walk */ + + walk_state = acpi_ds_get_current_walk_state(thread); + if (walk_state) { + if (ACPI_SUCCESS(status)) { + /* + * There is another walk state, restart it. + * If the method return value is not used by the parent, + * The object is deleted + */ + if (!previous_walk_state->return_desc) { + /* + * In slack mode execution, if there is no return value + * we should implicitly return zero (0) as a default value. + */ + if (acpi_gbl_enable_interpreter_slack && + !previous_walk_state-> + implicit_return_obj) { + previous_walk_state-> + implicit_return_obj = + acpi_ut_create_internal_object + (ACPI_TYPE_INTEGER); + if (!previous_walk_state-> + implicit_return_obj) { + return_ACPI_STATUS + (AE_NO_MEMORY); + } + + previous_walk_state-> + implicit_return_obj-> + integer.value = 0; + } + + /* Restart the calling control method */ + + status = + acpi_ds_restart_control_method + (walk_state, + previous_walk_state-> + implicit_return_obj); + } else { + /* + * We have a valid return value, delete any implicit + * return value. + */ + acpi_ds_clear_implicit_return + (previous_walk_state); + + status = + acpi_ds_restart_control_method + (walk_state, + previous_walk_state->return_desc); + } + if (ACPI_SUCCESS(status)) { + walk_state->walk_type |= + ACPI_WALK_METHOD_RESTART; + } + } else { + /* On error, delete any return object or implicit return */ + + acpi_ut_remove_reference(previous_walk_state-> + return_desc); + acpi_ds_clear_implicit_return + (previous_walk_state); + } + } + + /* + * Just completed a 1st-level method, save the final internal return + * value (if any) + */ + else if (previous_walk_state->caller_return_desc) { + if (previous_walk_state->implicit_return_obj) { + *(previous_walk_state->caller_return_desc) = + previous_walk_state->implicit_return_obj; + } else { + /* NULL if no return value */ + + *(previous_walk_state->caller_return_desc) = + previous_walk_state->return_desc; + } + } else { + if (previous_walk_state->return_desc) { + + /* Caller doesn't want it, must delete it */ + + acpi_ut_remove_reference(previous_walk_state-> + return_desc); + } + if (previous_walk_state->implicit_return_obj) { + + /* Caller doesn't want it, must delete it */ + + acpi_ut_remove_reference(previous_walk_state-> + implicit_return_obj); + } + } + + acpi_ds_delete_walk_state(previous_walk_state); + } + + /* Normal exit */ + + acpi_ex_release_all_mutexes(thread); + acpi_ut_delete_generic_state(ACPI_CAST_PTR + (union acpi_generic_state, thread)); + acpi_gbl_current_walk_list = prev_walk_list; + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/psscope.c b/drivers/acpi/acpica/psscope.c new file mode 100644 index 000000000000..22929ca1ffe4 --- /dev/null +++ b/drivers/acpi/acpica/psscope.c @@ -0,0 +1,265 @@ +/****************************************************************************** + * + * Module Name: psscope - Parser scope stack management routines + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_PARSER +ACPI_MODULE_NAME("psscope") + +/******************************************************************************* + * + * FUNCTION: acpi_ps_get_parent_scope + * + * PARAMETERS: parser_state - Current parser state object + * + * RETURN: Pointer to an Op object + * + * DESCRIPTION: Get parent of current op being parsed + * + ******************************************************************************/ +union acpi_parse_object *acpi_ps_get_parent_scope(struct acpi_parse_state + *parser_state) +{ + + return (parser_state->scope->parse_scope.op); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_has_completed_scope + * + * PARAMETERS: parser_state - Current parser state object + * + * RETURN: Boolean, TRUE = scope completed. + * + * DESCRIPTION: Is parsing of current argument complete? Determined by + * 1) AML pointer is at or beyond the end of the scope + * 2) The scope argument count has reached zero. + * + ******************************************************************************/ + +u8 acpi_ps_has_completed_scope(struct acpi_parse_state * parser_state) +{ + + return ((u8) + ((parser_state->aml >= parser_state->scope->parse_scope.arg_end + || !parser_state->scope->parse_scope.arg_count))); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_init_scope + * + * PARAMETERS: parser_state - Current parser state object + * Root - the Root Node of this new scope + * + * RETURN: Status + * + * DESCRIPTION: Allocate and init a new scope object + * + ******************************************************************************/ + +acpi_status +acpi_ps_init_scope(struct acpi_parse_state * parser_state, + union acpi_parse_object * root_op) +{ + union acpi_generic_state *scope; + + ACPI_FUNCTION_TRACE_PTR(ps_init_scope, root_op); + + scope = acpi_ut_create_generic_state(); + if (!scope) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + scope->common.descriptor_type = ACPI_DESC_TYPE_STATE_RPSCOPE; + scope->parse_scope.op = root_op; + scope->parse_scope.arg_count = ACPI_VAR_ARGS; + scope->parse_scope.arg_end = parser_state->aml_end; + scope->parse_scope.pkg_end = parser_state->aml_end; + + parser_state->scope = scope; + parser_state->start_op = root_op; + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_push_scope + * + * PARAMETERS: parser_state - Current parser state object + * Op - Current op to be pushed + * remaining_args - List of args remaining + * arg_count - Fixed or variable number of args + * + * RETURN: Status + * + * DESCRIPTION: Push current op to begin parsing its argument + * + ******************************************************************************/ + +acpi_status +acpi_ps_push_scope(struct acpi_parse_state *parser_state, + union acpi_parse_object *op, + u32 remaining_args, u32 arg_count) +{ + union acpi_generic_state *scope; + + ACPI_FUNCTION_TRACE_PTR(ps_push_scope, op); + + scope = acpi_ut_create_generic_state(); + if (!scope) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + scope->common.descriptor_type = ACPI_DESC_TYPE_STATE_PSCOPE; + scope->parse_scope.op = op; + scope->parse_scope.arg_list = remaining_args; + scope->parse_scope.arg_count = arg_count; + scope->parse_scope.pkg_end = parser_state->pkg_end; + + /* Push onto scope stack */ + + acpi_ut_push_generic_state(&parser_state->scope, scope); + + if (arg_count == ACPI_VAR_ARGS) { + + /* Multiple arguments */ + + scope->parse_scope.arg_end = parser_state->pkg_end; + } else { + /* Single argument */ + + scope->parse_scope.arg_end = ACPI_TO_POINTER(ACPI_MAX_PTR); + } + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_pop_scope + * + * PARAMETERS: parser_state - Current parser state object + * Op - Where the popped op is returned + * arg_list - Where the popped "next argument" is + * returned + * arg_count - Count of objects in arg_list + * + * RETURN: Status + * + * DESCRIPTION: Return to parsing a previous op + * + ******************************************************************************/ + +void +acpi_ps_pop_scope(struct acpi_parse_state *parser_state, + union acpi_parse_object **op, u32 * arg_list, u32 * arg_count) +{ + union acpi_generic_state *scope = parser_state->scope; + + ACPI_FUNCTION_TRACE(ps_pop_scope); + + /* Only pop the scope if there is in fact a next scope */ + + if (scope->common.next) { + scope = acpi_ut_pop_generic_state(&parser_state->scope); + + /* Return to parsing previous op */ + + *op = scope->parse_scope.op; + *arg_list = scope->parse_scope.arg_list; + *arg_count = scope->parse_scope.arg_count; + parser_state->pkg_end = scope->parse_scope.pkg_end; + + /* All done with this scope state structure */ + + acpi_ut_delete_generic_state(scope); + } else { + /* Empty parse stack, prepare to fetch next opcode */ + + *op = NULL; + *arg_list = 0; + *arg_count = 0; + } + + ACPI_DEBUG_PRINT((ACPI_DB_PARSE, + "Popped Op %p Args %X\n", *op, *arg_count)); + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_cleanup_scope + * + * PARAMETERS: parser_state - Current parser state object + * + * RETURN: None + * + * DESCRIPTION: Destroy available list, remaining stack levels, and return + * root scope + * + ******************************************************************************/ + +void acpi_ps_cleanup_scope(struct acpi_parse_state *parser_state) +{ + union acpi_generic_state *scope; + + ACPI_FUNCTION_TRACE_PTR(ps_cleanup_scope, parser_state); + + if (!parser_state) { + return_VOID; + } + + /* Delete anything on the scope stack */ + + while (parser_state->scope) { + scope = acpi_ut_pop_generic_state(&parser_state->scope); + acpi_ut_delete_generic_state(scope); + } + + return_VOID; +} diff --git a/drivers/acpi/acpica/pstree.c b/drivers/acpi/acpica/pstree.c new file mode 100644 index 000000000000..8e73fbf00971 --- /dev/null +++ b/drivers/acpi/acpica/pstree.c @@ -0,0 +1,312 @@ +/****************************************************************************** + * + * Module Name: pstree - Parser op tree manipulation/traversal/search + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include + +#define _COMPONENT ACPI_PARSER +ACPI_MODULE_NAME("pstree") + +/* Local prototypes */ +#ifdef ACPI_OBSOLETE_FUNCTIONS +union acpi_parse_object *acpi_ps_get_child(union acpi_parse_object *op); +#endif + +/******************************************************************************* + * + * FUNCTION: acpi_ps_get_arg + * + * PARAMETERS: Op - Get an argument for this op + * Argn - Nth argument to get + * + * RETURN: The argument (as an Op object). NULL if argument does not exist + * + * DESCRIPTION: Get the specified op's argument. + * + ******************************************************************************/ + +union acpi_parse_object *acpi_ps_get_arg(union acpi_parse_object *op, u32 argn) +{ + union acpi_parse_object *arg = NULL; + const struct acpi_opcode_info *op_info; + + ACPI_FUNCTION_ENTRY(); + + /* Get the info structure for this opcode */ + + op_info = acpi_ps_get_opcode_info(op->common.aml_opcode); + if (op_info->class == AML_CLASS_UNKNOWN) { + + /* Invalid opcode or ASCII character */ + + return (NULL); + } + + /* Check if this opcode requires argument sub-objects */ + + if (!(op_info->flags & AML_HAS_ARGS)) { + + /* Has no linked argument objects */ + + return (NULL); + } + + /* Get the requested argument object */ + + arg = op->common.value.arg; + while (arg && argn) { + argn--; + arg = arg->common.next; + } + + return (arg); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_append_arg + * + * PARAMETERS: Op - Append an argument to this Op. + * Arg - Argument Op to append + * + * RETURN: None. + * + * DESCRIPTION: Append an argument to an op's argument list (a NULL arg is OK) + * + ******************************************************************************/ + +void +acpi_ps_append_arg(union acpi_parse_object *op, union acpi_parse_object *arg) +{ + union acpi_parse_object *prev_arg; + const struct acpi_opcode_info *op_info; + + ACPI_FUNCTION_ENTRY(); + + if (!op) { + return; + } + + /* Get the info structure for this opcode */ + + op_info = acpi_ps_get_opcode_info(op->common.aml_opcode); + if (op_info->class == AML_CLASS_UNKNOWN) { + + /* Invalid opcode */ + + ACPI_ERROR((AE_INFO, "Invalid AML Opcode: 0x%2.2X", + op->common.aml_opcode)); + return; + } + + /* Check if this opcode requires argument sub-objects */ + + if (!(op_info->flags & AML_HAS_ARGS)) { + + /* Has no linked argument objects */ + + return; + } + + /* Append the argument to the linked argument list */ + + if (op->common.value.arg) { + + /* Append to existing argument list */ + + prev_arg = op->common.value.arg; + while (prev_arg->common.next) { + prev_arg = prev_arg->common.next; + } + prev_arg->common.next = arg; + } else { + /* No argument list, this will be the first argument */ + + op->common.value.arg = arg; + } + + /* Set the parent in this arg and any args linked after it */ + + while (arg) { + arg->common.parent = op; + arg = arg->common.next; + + op->common.arg_list_length++; + } +} + +#ifdef ACPI_FUTURE_USAGE +/******************************************************************************* + * + * FUNCTION: acpi_ps_get_depth_next + * + * PARAMETERS: Origin - Root of subtree to search + * Op - Last (previous) Op that was found + * + * RETURN: Next Op found in the search. + * + * DESCRIPTION: Get next op in tree (walking the tree in depth-first order) + * Return NULL when reaching "origin" or when walking up from root + * + ******************************************************************************/ + +union acpi_parse_object *acpi_ps_get_depth_next(union acpi_parse_object *origin, + union acpi_parse_object *op) +{ + union acpi_parse_object *next = NULL; + union acpi_parse_object *parent; + union acpi_parse_object *arg; + + ACPI_FUNCTION_ENTRY(); + + if (!op) { + return (NULL); + } + + /* Look for an argument or child */ + + next = acpi_ps_get_arg(op, 0); + if (next) { + return (next); + } + + /* Look for a sibling */ + + next = op->common.next; + if (next) { + return (next); + } + + /* Look for a sibling of parent */ + + parent = op->common.parent; + + while (parent) { + arg = acpi_ps_get_arg(parent, 0); + while (arg && (arg != origin) && (arg != op)) { + arg = arg->common.next; + } + + if (arg == origin) { + + /* Reached parent of origin, end search */ + + return (NULL); + } + + if (parent->common.next) { + + /* Found sibling of parent */ + + return (parent->common.next); + } + + op = parent; + parent = parent->common.parent; + } + + return (next); +} + +#ifdef ACPI_OBSOLETE_FUNCTIONS +/******************************************************************************* + * + * FUNCTION: acpi_ps_get_child + * + * PARAMETERS: Op - Get the child of this Op + * + * RETURN: Child Op, Null if none is found. + * + * DESCRIPTION: Get op's children or NULL if none + * + ******************************************************************************/ + +union acpi_parse_object *acpi_ps_get_child(union acpi_parse_object *op) +{ + union acpi_parse_object *child = NULL; + + ACPI_FUNCTION_ENTRY(); + + switch (op->common.aml_opcode) { + case AML_SCOPE_OP: + case AML_ELSE_OP: + case AML_DEVICE_OP: + case AML_THERMAL_ZONE_OP: + case AML_INT_METHODCALL_OP: + + child = acpi_ps_get_arg(op, 0); + break; + + case AML_BUFFER_OP: + case AML_PACKAGE_OP: + case AML_METHOD_OP: + case AML_IF_OP: + case AML_WHILE_OP: + case AML_FIELD_OP: + + child = acpi_ps_get_arg(op, 1); + break; + + case AML_POWER_RES_OP: + case AML_INDEX_FIELD_OP: + + child = acpi_ps_get_arg(op, 2); + break; + + case AML_PROCESSOR_OP: + case AML_BANK_FIELD_OP: + + child = acpi_ps_get_arg(op, 3); + break; + + default: + /* All others have no children */ + break; + } + + return (child); +} +#endif +#endif /* ACPI_FUTURE_USAGE */ diff --git a/drivers/acpi/acpica/psutils.c b/drivers/acpi/acpica/psutils.c new file mode 100644 index 000000000000..eec7d624db8e --- /dev/null +++ b/drivers/acpi/acpica/psutils.c @@ -0,0 +1,244 @@ +/****************************************************************************** + * + * Module Name: psutils - Parser miscellaneous utilities (Parser only) + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include + +#define _COMPONENT ACPI_PARSER +ACPI_MODULE_NAME("psutils") + +/******************************************************************************* + * + * FUNCTION: acpi_ps_create_scope_op + * + * PARAMETERS: None + * + * RETURN: A new Scope object, null on failure + * + * DESCRIPTION: Create a Scope and associated namepath op with the root name + * + ******************************************************************************/ +union acpi_parse_object *acpi_ps_create_scope_op(void) +{ + union acpi_parse_object *scope_op; + + scope_op = acpi_ps_alloc_op(AML_SCOPE_OP); + if (!scope_op) { + return (NULL); + } + + scope_op->named.name = ACPI_ROOT_NAME; + return (scope_op); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_init_op + * + * PARAMETERS: Op - A newly allocated Op object + * Opcode - Opcode to store in the Op + * + * RETURN: None + * + * DESCRIPTION: Initialize a parse (Op) object + * + ******************************************************************************/ + +void acpi_ps_init_op(union acpi_parse_object *op, u16 opcode) +{ + ACPI_FUNCTION_ENTRY(); + + op->common.descriptor_type = ACPI_DESC_TYPE_PARSER; + op->common.aml_opcode = opcode; + + ACPI_DISASM_ONLY_MEMBERS(ACPI_STRNCPY(op->common.aml_op_name, + (acpi_ps_get_opcode_info + (opcode))->name, + sizeof(op->common.aml_op_name))); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_alloc_op + * + * PARAMETERS: Opcode - Opcode that will be stored in the new Op + * + * RETURN: Pointer to the new Op, null on failure + * + * DESCRIPTION: Allocate an acpi_op, choose op type (and thus size) based on + * opcode. A cache of opcodes is available for the pure + * GENERIC_OP, since this is by far the most commonly used. + * + ******************************************************************************/ + +union acpi_parse_object *acpi_ps_alloc_op(u16 opcode) +{ + union acpi_parse_object *op; + const struct acpi_opcode_info *op_info; + u8 flags = ACPI_PARSEOP_GENERIC; + + ACPI_FUNCTION_ENTRY(); + + op_info = acpi_ps_get_opcode_info(opcode); + + /* Determine type of parse_op required */ + + if (op_info->flags & AML_DEFER) { + flags = ACPI_PARSEOP_DEFERRED; + } else if (op_info->flags & AML_NAMED) { + flags = ACPI_PARSEOP_NAMED; + } else if (opcode == AML_INT_BYTELIST_OP) { + flags = ACPI_PARSEOP_BYTELIST; + } + + /* Allocate the minimum required size object */ + + if (flags == ACPI_PARSEOP_GENERIC) { + + /* The generic op (default) is by far the most common (16 to 1) */ + + op = acpi_os_acquire_object(acpi_gbl_ps_node_cache); + } else { + /* Extended parseop */ + + op = acpi_os_acquire_object(acpi_gbl_ps_node_ext_cache); + } + + /* Initialize the Op */ + + if (op) { + acpi_ps_init_op(op, opcode); + op->common.flags = flags; + } + + return (op); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_free_op + * + * PARAMETERS: Op - Op to be freed + * + * RETURN: None. + * + * DESCRIPTION: Free an Op object. Either put it on the GENERIC_OP cache list + * or actually free it. + * + ******************************************************************************/ + +void acpi_ps_free_op(union acpi_parse_object *op) +{ + ACPI_FUNCTION_NAME(ps_free_op); + + if (op->common.aml_opcode == AML_INT_RETURN_VALUE_OP) { + ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "Free retval op: %p\n", + op)); + } + + if (op->common.flags & ACPI_PARSEOP_GENERIC) { + (void)acpi_os_release_object(acpi_gbl_ps_node_cache, op); + } else { + (void)acpi_os_release_object(acpi_gbl_ps_node_ext_cache, op); + } +} + +/******************************************************************************* + * + * FUNCTION: Utility functions + * + * DESCRIPTION: Low level character and object functions + * + ******************************************************************************/ + +/* + * Is "c" a namestring lead character? + */ +u8 acpi_ps_is_leading_char(u32 c) +{ + return ((u8) (c == '_' || (c >= 'A' && c <= 'Z'))); +} + +/* + * Is "c" a namestring prefix character? + */ +u8 acpi_ps_is_prefix_char(u32 c) +{ + return ((u8) (c == '\\' || c == '^')); +} + +/* + * Get op's name (4-byte name segment) or 0 if unnamed + */ +#ifdef ACPI_FUTURE_USAGE +u32 acpi_ps_get_name(union acpi_parse_object * op) +{ + + /* The "generic" object has no name associated with it */ + + if (op->common.flags & ACPI_PARSEOP_GENERIC) { + return (0); + } + + /* Only the "Extended" parse objects have a name */ + + return (op->named.name); +} +#endif /* ACPI_FUTURE_USAGE */ + +/* + * Set op's name + */ +void acpi_ps_set_name(union acpi_parse_object *op, u32 name) +{ + + /* The "generic" object has no name associated with it */ + + if (op->common.flags & ACPI_PARSEOP_GENERIC) { + return; + } + + op->named.name = name; +} diff --git a/drivers/acpi/acpica/pswalk.c b/drivers/acpi/acpica/pswalk.c new file mode 100644 index 000000000000..dacc4228ba1a --- /dev/null +++ b/drivers/acpi/acpica/pswalk.c @@ -0,0 +1,110 @@ +/****************************************************************************** + * + * Module Name: pswalk - Parser routines to walk parsed op tree(s) + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_PARSER +ACPI_MODULE_NAME("pswalk") + +/******************************************************************************* + * + * FUNCTION: acpi_ps_delete_parse_tree + * + * PARAMETERS: subtree_root - Root of tree (or subtree) to delete + * + * RETURN: None + * + * DESCRIPTION: Delete a portion of or an entire parse tree. + * + ******************************************************************************/ +void acpi_ps_delete_parse_tree(union acpi_parse_object *subtree_root) +{ + union acpi_parse_object *op = subtree_root; + union acpi_parse_object *next = NULL; + union acpi_parse_object *parent = NULL; + + ACPI_FUNCTION_TRACE_PTR(ps_delete_parse_tree, subtree_root); + + /* Visit all nodes in the subtree */ + + while (op) { + + /* Check if we are not ascending */ + + if (op != parent) { + + /* Look for an argument or child of the current op */ + + next = acpi_ps_get_arg(op, 0); + if (next) { + + /* Still going downward in tree (Op is not completed yet) */ + + op = next; + continue; + } + } + + /* No more children, this Op is complete. */ + + next = op->common.next; + parent = op->common.parent; + + acpi_ps_free_op(op); + + /* If we are back to the starting point, the walk is complete. */ + + if (op == subtree_root) { + return_VOID; + } + if (next) { + op = next; + } else { + op = parent; + } + } + + return_VOID; +} diff --git a/drivers/acpi/acpica/psxface.c b/drivers/acpi/acpica/psxface.c new file mode 100644 index 000000000000..98c31a893706 --- /dev/null +++ b/drivers/acpi/acpica/psxface.c @@ -0,0 +1,385 @@ +/****************************************************************************** + * + * Module Name: psxface - Parser external interfaces + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_PARSER +ACPI_MODULE_NAME("psxface") + +/* Local Prototypes */ +static void acpi_ps_start_trace(struct acpi_evaluate_info *info); + +static void acpi_ps_stop_trace(struct acpi_evaluate_info *info); + +static void +acpi_ps_update_parameter_list(struct acpi_evaluate_info *info, u16 action); + +/******************************************************************************* + * + * FUNCTION: acpi_debug_trace + * + * PARAMETERS: method_name - Valid ACPI name string + * debug_level - Optional level mask. 0 to use default + * debug_layer - Optional layer mask. 0 to use default + * Flags - bit 1: one shot(1) or persistent(0) + * + * RETURN: Status + * + * DESCRIPTION: External interface to enable debug tracing during control + * method execution + * + ******************************************************************************/ + +acpi_status +acpi_debug_trace(char *name, u32 debug_level, u32 debug_layer, u32 flags) +{ + acpi_status status; + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* TBDs: Validate name, allow full path or just nameseg */ + + acpi_gbl_trace_method_name = *ACPI_CAST_PTR(u32, name); + acpi_gbl_trace_flags = flags; + + if (debug_level) { + acpi_gbl_trace_dbg_level = debug_level; + } + if (debug_layer) { + acpi_gbl_trace_dbg_layer = debug_layer; + } + + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_start_trace + * + * PARAMETERS: Info - Method info struct + * + * RETURN: None + * + * DESCRIPTION: Start control method execution trace + * + ******************************************************************************/ + +static void acpi_ps_start_trace(struct acpi_evaluate_info *info) +{ + acpi_status status; + + ACPI_FUNCTION_ENTRY(); + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return; + } + + if ((!acpi_gbl_trace_method_name) || + (acpi_gbl_trace_method_name != info->resolved_node->name.integer)) { + goto exit; + } + + acpi_gbl_original_dbg_level = acpi_dbg_level; + acpi_gbl_original_dbg_layer = acpi_dbg_layer; + + acpi_dbg_level = 0x00FFFFFF; + acpi_dbg_layer = ACPI_UINT32_MAX; + + if (acpi_gbl_trace_dbg_level) { + acpi_dbg_level = acpi_gbl_trace_dbg_level; + } + if (acpi_gbl_trace_dbg_layer) { + acpi_dbg_layer = acpi_gbl_trace_dbg_layer; + } + + exit: + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_stop_trace + * + * PARAMETERS: Info - Method info struct + * + * RETURN: None + * + * DESCRIPTION: Stop control method execution trace + * + ******************************************************************************/ + +static void acpi_ps_stop_trace(struct acpi_evaluate_info *info) +{ + acpi_status status; + + ACPI_FUNCTION_ENTRY(); + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return; + } + + if ((!acpi_gbl_trace_method_name) || + (acpi_gbl_trace_method_name != info->resolved_node->name.integer)) { + goto exit; + } + + /* Disable further tracing if type is one-shot */ + + if (acpi_gbl_trace_flags & 1) { + acpi_gbl_trace_method_name = 0; + acpi_gbl_trace_dbg_level = 0; + acpi_gbl_trace_dbg_layer = 0; + } + + acpi_dbg_level = acpi_gbl_original_dbg_level; + acpi_dbg_layer = acpi_gbl_original_dbg_layer; + + exit: + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_execute_method + * + * PARAMETERS: Info - Method info block, contains: + * Node - Method Node to execute + * obj_desc - Method object + * Parameters - List of parameters to pass to the method, + * terminated by NULL. Params itself may be + * NULL if no parameters are being passed. + * return_object - Where to put method's return value (if + * any). If NULL, no value is returned. + * parameter_type - Type of Parameter list + * return_object - Where to put method's return value (if + * any). If NULL, no value is returned. + * pass_number - Parse or execute pass + * + * RETURN: Status + * + * DESCRIPTION: Execute a control method + * + ******************************************************************************/ + +acpi_status acpi_ps_execute_method(struct acpi_evaluate_info *info) +{ + acpi_status status; + union acpi_parse_object *op; + struct acpi_walk_state *walk_state; + + ACPI_FUNCTION_TRACE(ps_execute_method); + + /* Validate the Info and method Node */ + + if (!info || !info->resolved_node) { + return_ACPI_STATUS(AE_NULL_ENTRY); + } + + /* Init for new method, wait on concurrency semaphore */ + + status = + acpi_ds_begin_method_execution(info->resolved_node, info->obj_desc, + NULL); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * The caller "owns" the parameters, so give each one an extra reference + */ + acpi_ps_update_parameter_list(info, REF_INCREMENT); + + /* Begin tracing if requested */ + + acpi_ps_start_trace(info); + + /* + * Execute the method. Performs parse simultaneously + */ + ACPI_DEBUG_PRINT((ACPI_DB_PARSE, + "**** Begin Method Parse/Execute [%4.4s] **** Node=%p Obj=%p\n", + info->resolved_node->name.ascii, info->resolved_node, + info->obj_desc)); + + /* Create and init a Root Node */ + + op = acpi_ps_create_scope_op(); + if (!op) { + status = AE_NO_MEMORY; + goto cleanup; + } + + /* Create and initialize a new walk state */ + + info->pass_number = ACPI_IMODE_EXECUTE; + walk_state = + acpi_ds_create_walk_state(info->obj_desc->method.owner_id, NULL, + NULL, NULL); + if (!walk_state) { + status = AE_NO_MEMORY; + goto cleanup; + } + + status = acpi_ds_init_aml_walk(walk_state, op, info->resolved_node, + info->obj_desc->method.aml_start, + info->obj_desc->method.aml_length, info, + info->pass_number); + if (ACPI_FAILURE(status)) { + acpi_ds_delete_walk_state(walk_state); + goto cleanup; + } + + /* Invoke an internal method if necessary */ + + if (info->obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY) { + status = info->obj_desc->method.implementation(walk_state); + info->return_object = walk_state->return_desc; + + /* Cleanup states */ + + acpi_ds_scope_stack_clear(walk_state); + acpi_ps_cleanup_scope(&walk_state->parser_state); + acpi_ds_terminate_control_method(walk_state->method_desc, + walk_state); + acpi_ds_delete_walk_state(walk_state); + goto cleanup; + } + + /* + * Start method evaluation with an implicit return of zero. + * This is done for Windows compatibility. + */ + if (acpi_gbl_enable_interpreter_slack) { + walk_state->implicit_return_obj = + acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + if (!walk_state->implicit_return_obj) { + status = AE_NO_MEMORY; + acpi_ds_delete_walk_state(walk_state); + goto cleanup; + } + + walk_state->implicit_return_obj->integer.value = 0; + } + + /* Parse the AML */ + + status = acpi_ps_parse_aml(walk_state); + + /* walk_state was deleted by parse_aml */ + + cleanup: + acpi_ps_delete_parse_tree(op); + + /* End optional tracing */ + + acpi_ps_stop_trace(info); + + /* Take away the extra reference that we gave the parameters above */ + + acpi_ps_update_parameter_list(info, REF_DECREMENT); + + /* Exit now if error above */ + + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * If the method has returned an object, signal this to the caller with + * a control exception code + */ + if (info->return_object) { + ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "Method returned ObjDesc=%p\n", + info->return_object)); + ACPI_DUMP_STACK_ENTRY(info->return_object); + + status = AE_CTRL_RETURN_VALUE; + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ps_update_parameter_list + * + * PARAMETERS: Info - See struct acpi_evaluate_info + * (Used: parameter_type and Parameters) + * Action - Add or Remove reference + * + * RETURN: Status + * + * DESCRIPTION: Update reference count on all method parameter objects + * + ******************************************************************************/ + +static void +acpi_ps_update_parameter_list(struct acpi_evaluate_info *info, u16 action) +{ + u32 i; + + if (info->parameters) { + + /* Update reference count for each parameter */ + + for (i = 0; info->parameters[i]; i++) { + + /* Ignore errors, just do them all */ + + (void)acpi_ut_update_object_reference(info-> + parameters[i], + action); + } + } +} diff --git a/drivers/acpi/acpica/rsaddr.c b/drivers/acpi/acpica/rsaddr.c new file mode 100644 index 000000000000..b4aba3aebcb8 --- /dev/null +++ b/drivers/acpi/acpica/rsaddr.c @@ -0,0 +1,381 @@ +/******************************************************************************* + * + * Module Name: rsaddr - Address resource descriptors (16/32/64) + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_RESOURCES +ACPI_MODULE_NAME("rsaddr") + +/******************************************************************************* + * + * acpi_rs_convert_address16 - All WORD (16-bit) address resources + * + ******************************************************************************/ +struct acpi_rsconvert_info acpi_rs_convert_address16[5] = { + {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS16, + ACPI_RS_SIZE(struct acpi_resource_address16), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address16)}, + + {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS16, + sizeof(struct aml_resource_address16), + 0}, + + /* Resource Type, General Flags, and Type-Specific Flags */ + + {ACPI_RSC_ADDRESS, 0, 0, 0}, + + /* + * These fields are contiguous in both the source and destination: + * Address Granularity + * Address Range Minimum + * Address Range Maximum + * Address Translation Offset + * Address Length + */ + {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.address16.granularity), + AML_OFFSET(address16.granularity), + 5}, + + /* Optional resource_source (Index and String) */ + + {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address16.resource_source), + 0, + sizeof(struct aml_resource_address16)} +}; + +/******************************************************************************* + * + * acpi_rs_convert_address32 - All DWORD (32-bit) address resources + * + ******************************************************************************/ + +struct acpi_rsconvert_info acpi_rs_convert_address32[5] = { + {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS32, + ACPI_RS_SIZE(struct acpi_resource_address32), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address32)}, + + {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS32, + sizeof(struct aml_resource_address32), + 0}, + + /* Resource Type, General Flags, and Type-Specific Flags */ + + {ACPI_RSC_ADDRESS, 0, 0, 0}, + + /* + * These fields are contiguous in both the source and destination: + * Address Granularity + * Address Range Minimum + * Address Range Maximum + * Address Translation Offset + * Address Length + */ + {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.address32.granularity), + AML_OFFSET(address32.granularity), + 5}, + + /* Optional resource_source (Index and String) */ + + {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address32.resource_source), + 0, + sizeof(struct aml_resource_address32)} +}; + +/******************************************************************************* + * + * acpi_rs_convert_address64 - All QWORD (64-bit) address resources + * + ******************************************************************************/ + +struct acpi_rsconvert_info acpi_rs_convert_address64[5] = { + {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS64, + ACPI_RS_SIZE(struct acpi_resource_address64), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address64)}, + + {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS64, + sizeof(struct aml_resource_address64), + 0}, + + /* Resource Type, General Flags, and Type-Specific Flags */ + + {ACPI_RSC_ADDRESS, 0, 0, 0}, + + /* + * These fields are contiguous in both the source and destination: + * Address Granularity + * Address Range Minimum + * Address Range Maximum + * Address Translation Offset + * Address Length + */ + {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.address64.granularity), + AML_OFFSET(address64.granularity), + 5}, + + /* Optional resource_source (Index and String) */ + + {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address64.resource_source), + 0, + sizeof(struct aml_resource_address64)} +}; + +/******************************************************************************* + * + * acpi_rs_convert_ext_address64 - All Extended (64-bit) address resources + * + ******************************************************************************/ + +struct acpi_rsconvert_info acpi_rs_convert_ext_address64[5] = { + {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64, + ACPI_RS_SIZE(struct acpi_resource_extended_address64), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_ext_address64)}, + + {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64, + sizeof(struct aml_resource_extended_address64), + 0}, + + /* Resource Type, General Flags, and Type-Specific Flags */ + + {ACPI_RSC_ADDRESS, 0, 0, 0}, + + /* Revision ID */ + + {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.ext_address64.revision_iD), + AML_OFFSET(ext_address64.revision_iD), + 1}, + /* + * These fields are contiguous in both the source and destination: + * Address Granularity + * Address Range Minimum + * Address Range Maximum + * Address Translation Offset + * Address Length + * Type-Specific Attribute + */ + {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.ext_address64.granularity), + AML_OFFSET(ext_address64.granularity), + 6} +}; + +/******************************************************************************* + * + * acpi_rs_convert_general_flags - Flags common to all address descriptors + * + ******************************************************************************/ + +static struct acpi_rsconvert_info acpi_rs_convert_general_flags[6] = { + {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.flags), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_general_flags)}, + + /* Resource Type (Memory, Io, bus_number, etc.) */ + + {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.address.resource_type), + AML_OFFSET(address.resource_type), + 1}, + + /* General Flags - Consume, Decode, min_fixed, max_fixed */ + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.producer_consumer), + AML_OFFSET(address.flags), + 0}, + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.decode), + AML_OFFSET(address.flags), + 1}, + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.min_address_fixed), + AML_OFFSET(address.flags), + 2}, + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.max_address_fixed), + AML_OFFSET(address.flags), + 3} +}; + +/******************************************************************************* + * + * acpi_rs_convert_mem_flags - Flags common to Memory address descriptors + * + ******************************************************************************/ + +static struct acpi_rsconvert_info acpi_rs_convert_mem_flags[5] = { + {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.specific_flags), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_mem_flags)}, + + /* Memory-specific flags */ + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.write_protect), + AML_OFFSET(address.specific_flags), + 0}, + + {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.caching), + AML_OFFSET(address.specific_flags), + 1}, + + {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.range_type), + AML_OFFSET(address.specific_flags), + 3}, + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.translation), + AML_OFFSET(address.specific_flags), + 5} +}; + +/******************************************************************************* + * + * acpi_rs_convert_io_flags - Flags common to I/O address descriptors + * + ******************************************************************************/ + +static struct acpi_rsconvert_info acpi_rs_convert_io_flags[4] = { + {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.specific_flags), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_io_flags)}, + + /* I/O-specific flags */ + + {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.io.range_type), + AML_OFFSET(address.specific_flags), + 0}, + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.io.translation), + AML_OFFSET(address.specific_flags), + 4}, + + {ACPI_RSC_1BITFLAG, + ACPI_RS_OFFSET(data.address.info.io.translation_type), + AML_OFFSET(address.specific_flags), + 5} +}; + +/******************************************************************************* + * + * FUNCTION: acpi_rs_get_address_common + * + * PARAMETERS: Resource - Pointer to the internal resource struct + * Aml - Pointer to the AML resource descriptor + * + * RETURN: TRUE if the resource_type field is OK, FALSE otherwise + * + * DESCRIPTION: Convert common flag fields from a raw AML resource descriptor + * to an internal resource descriptor + * + ******************************************************************************/ + +u8 +acpi_rs_get_address_common(struct acpi_resource *resource, + union aml_resource *aml) +{ + ACPI_FUNCTION_ENTRY(); + + /* Validate the Resource Type */ + + if ((aml->address.resource_type > 2) + && (aml->address.resource_type < 0xC0)) { + return (FALSE); + } + + /* Get the Resource Type and General Flags */ + + (void)acpi_rs_convert_aml_to_resource(resource, aml, + acpi_rs_convert_general_flags); + + /* Get the Type-Specific Flags (Memory and I/O descriptors only) */ + + if (resource->data.address.resource_type == ACPI_MEMORY_RANGE) { + (void)acpi_rs_convert_aml_to_resource(resource, aml, + acpi_rs_convert_mem_flags); + } else if (resource->data.address.resource_type == ACPI_IO_RANGE) { + (void)acpi_rs_convert_aml_to_resource(resource, aml, + acpi_rs_convert_io_flags); + } else { + /* Generic resource type, just grab the type_specific byte */ + + resource->data.address.info.type_specific = + aml->address.specific_flags; + } + + return (TRUE); +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_set_address_common + * + * PARAMETERS: Aml - Pointer to the AML resource descriptor + * Resource - Pointer to the internal resource struct + * + * RETURN: None + * + * DESCRIPTION: Convert common flag fields from a resource descriptor to an + * AML descriptor + * + ******************************************************************************/ + +void +acpi_rs_set_address_common(union aml_resource *aml, + struct acpi_resource *resource) +{ + ACPI_FUNCTION_ENTRY(); + + /* Set the Resource Type and General Flags */ + + (void)acpi_rs_convert_resource_to_aml(resource, aml, + acpi_rs_convert_general_flags); + + /* Set the Type-Specific Flags (Memory and I/O descriptors only) */ + + if (resource->data.address.resource_type == ACPI_MEMORY_RANGE) { + (void)acpi_rs_convert_resource_to_aml(resource, aml, + acpi_rs_convert_mem_flags); + } else if (resource->data.address.resource_type == ACPI_IO_RANGE) { + (void)acpi_rs_convert_resource_to_aml(resource, aml, + acpi_rs_convert_io_flags); + } else { + /* Generic resource type, just copy the type_specific byte */ + + aml->address.specific_flags = + resource->data.address.info.type_specific; + } +} diff --git a/drivers/acpi/acpica/rscalc.c b/drivers/acpi/acpica/rscalc.c new file mode 100644 index 000000000000..4f2b186fe302 --- /dev/null +++ b/drivers/acpi/acpica/rscalc.c @@ -0,0 +1,618 @@ +/******************************************************************************* + * + * Module Name: rscalc - Calculate stream and list lengths + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include + +#define _COMPONENT ACPI_RESOURCES +ACPI_MODULE_NAME("rscalc") + +/* Local prototypes */ +static u8 acpi_rs_count_set_bits(u16 bit_field); + +static acpi_rs_length +acpi_rs_struct_option_length(struct acpi_resource_source *resource_source); + +static u32 +acpi_rs_stream_option_length(u32 resource_length, u32 minimum_total_length); + +/******************************************************************************* + * + * FUNCTION: acpi_rs_count_set_bits + * + * PARAMETERS: bit_field - Field in which to count bits + * + * RETURN: Number of bits set within the field + * + * DESCRIPTION: Count the number of bits set in a resource field. Used for + * (Short descriptor) interrupt and DMA lists. + * + ******************************************************************************/ + +static u8 acpi_rs_count_set_bits(u16 bit_field) +{ + u8 bits_set; + + ACPI_FUNCTION_ENTRY(); + + for (bits_set = 0; bit_field; bits_set++) { + + /* Zero the least significant bit that is set */ + + bit_field &= (u16) (bit_field - 1); + } + + return bits_set; +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_struct_option_length + * + * PARAMETERS: resource_source - Pointer to optional descriptor field + * + * RETURN: Status + * + * DESCRIPTION: Common code to handle optional resource_source_index and + * resource_source fields in some Large descriptors. Used during + * list-to-stream conversion + * + ******************************************************************************/ + +static acpi_rs_length +acpi_rs_struct_option_length(struct acpi_resource_source *resource_source) +{ + ACPI_FUNCTION_ENTRY(); + + /* + * If the resource_source string is valid, return the size of the string + * (string_length includes the NULL terminator) plus the size of the + * resource_source_index (1). + */ + if (resource_source->string_ptr) { + return ((acpi_rs_length) (resource_source->string_length + 1)); + } + + return (0); +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_stream_option_length + * + * PARAMETERS: resource_length - Length from the resource header + * minimum_total_length - Minimum length of this resource, before + * any optional fields. Includes header size + * + * RETURN: Length of optional string (0 if no string present) + * + * DESCRIPTION: Common code to handle optional resource_source_index and + * resource_source fields in some Large descriptors. Used during + * stream-to-list conversion + * + ******************************************************************************/ + +static u32 +acpi_rs_stream_option_length(u32 resource_length, + u32 minimum_aml_resource_length) +{ + u32 string_length = 0; + + ACPI_FUNCTION_ENTRY(); + + /* + * The resource_source_index and resource_source are optional elements of some + * Large-type resource descriptors. + */ + + /* + * If the length of the actual resource descriptor is greater than the ACPI + * spec-defined minimum length, it means that a resource_source_index exists + * and is followed by a (required) null terminated string. The string length + * (including the null terminator) is the resource length minus the minimum + * length, minus one byte for the resource_source_index itself. + */ + if (resource_length > minimum_aml_resource_length) { + + /* Compute the length of the optional string */ + + string_length = + resource_length - minimum_aml_resource_length - 1; + } + + /* + * Round the length up to a multiple of the native word in order to + * guarantee that the entire resource descriptor is native word aligned + */ + return ((u32) ACPI_ROUND_UP_TO_NATIVE_WORD(string_length)); +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_get_aml_length + * + * PARAMETERS: Resource - Pointer to the resource linked list + * size_needed - Where the required size is returned + * + * RETURN: Status + * + * DESCRIPTION: Takes a linked list of internal resource descriptors and + * calculates the size buffer needed to hold the corresponding + * external resource byte stream. + * + ******************************************************************************/ + +acpi_status +acpi_rs_get_aml_length(struct acpi_resource * resource, acpi_size * size_needed) +{ + acpi_size aml_size_needed = 0; + acpi_rs_length total_size; + + ACPI_FUNCTION_TRACE(rs_get_aml_length); + + /* Traverse entire list of internal resource descriptors */ + + while (resource) { + + /* Validate the descriptor type */ + + if (resource->type > ACPI_RESOURCE_TYPE_MAX) { + return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE); + } + + /* Get the base size of the (external stream) resource descriptor */ + + total_size = acpi_gbl_aml_resource_sizes[resource->type]; + + /* + * Augment the base size for descriptors with optional and/or + * variable-length fields + */ + switch (resource->type) { + case ACPI_RESOURCE_TYPE_IRQ: + + /* Length can be 3 or 2 */ + + if (resource->data.irq.descriptor_length == 2) { + total_size--; + } + break; + + case ACPI_RESOURCE_TYPE_START_DEPENDENT: + + /* Length can be 1 or 0 */ + + if (resource->data.irq.descriptor_length == 0) { + total_size--; + } + break; + + case ACPI_RESOURCE_TYPE_VENDOR: + /* + * Vendor Defined Resource: + * For a Vendor Specific resource, if the Length is between 1 and 7 + * it will be created as a Small Resource data type, otherwise it + * is a Large Resource data type. + */ + if (resource->data.vendor.byte_length > 7) { + + /* Base size of a Large resource descriptor */ + + total_size = + sizeof(struct aml_resource_large_header); + } + + /* Add the size of the vendor-specific data */ + + total_size = (acpi_rs_length) + (total_size + resource->data.vendor.byte_length); + break; + + case ACPI_RESOURCE_TYPE_END_TAG: + /* + * End Tag: + * We are done -- return the accumulated total size. + */ + *size_needed = aml_size_needed + total_size; + + /* Normal exit */ + + return_ACPI_STATUS(AE_OK); + + case ACPI_RESOURCE_TYPE_ADDRESS16: + /* + * 16-Bit Address Resource: + * Add the size of the optional resource_source info + */ + total_size = (acpi_rs_length) + (total_size + + acpi_rs_struct_option_length(&resource->data. + address16. + resource_source)); + break; + + case ACPI_RESOURCE_TYPE_ADDRESS32: + /* + * 32-Bit Address Resource: + * Add the size of the optional resource_source info + */ + total_size = (acpi_rs_length) + (total_size + + acpi_rs_struct_option_length(&resource->data. + address32. + resource_source)); + break; + + case ACPI_RESOURCE_TYPE_ADDRESS64: + /* + * 64-Bit Address Resource: + * Add the size of the optional resource_source info + */ + total_size = (acpi_rs_length) + (total_size + + acpi_rs_struct_option_length(&resource->data. + address64. + resource_source)); + break; + + case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: + /* + * Extended IRQ Resource: + * Add the size of each additional optional interrupt beyond the + * required 1 (4 bytes for each u32 interrupt number) + */ + total_size = (acpi_rs_length) + (total_size + + ((resource->data.extended_irq.interrupt_count - + 1) * 4) + + /* Add the size of the optional resource_source info */ + acpi_rs_struct_option_length(&resource->data. + extended_irq. + resource_source)); + break; + + default: + break; + } + + /* Update the total */ + + aml_size_needed += total_size; + + /* Point to the next object */ + + resource = + ACPI_ADD_PTR(struct acpi_resource, resource, + resource->length); + } + + /* Did not find an end_tag resource descriptor */ + + return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG); +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_get_list_length + * + * PARAMETERS: aml_buffer - Pointer to the resource byte stream + * aml_buffer_length - Size of aml_buffer + * size_needed - Where the size needed is returned + * + * RETURN: Status + * + * DESCRIPTION: Takes an external resource byte stream and calculates the size + * buffer needed to hold the corresponding internal resource + * descriptor linked list. + * + ******************************************************************************/ + +acpi_status +acpi_rs_get_list_length(u8 * aml_buffer, + u32 aml_buffer_length, acpi_size * size_needed) +{ + acpi_status status; + u8 *end_aml; + u8 *buffer; + u32 buffer_size; + u16 temp16; + u16 resource_length; + u32 extra_struct_bytes; + u8 resource_index; + u8 minimum_aml_resource_length; + + ACPI_FUNCTION_TRACE(rs_get_list_length); + + *size_needed = 0; + end_aml = aml_buffer + aml_buffer_length; + + /* Walk the list of AML resource descriptors */ + + while (aml_buffer < end_aml) { + + /* Validate the Resource Type and Resource Length */ + + status = acpi_ut_validate_resource(aml_buffer, &resource_index); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Get the resource length and base (minimum) AML size */ + + resource_length = acpi_ut_get_resource_length(aml_buffer); + minimum_aml_resource_length = + acpi_gbl_resource_aml_sizes[resource_index]; + + /* + * Augment the size for descriptors with optional + * and/or variable length fields + */ + extra_struct_bytes = 0; + buffer = + aml_buffer + acpi_ut_get_resource_header_length(aml_buffer); + + switch (acpi_ut_get_resource_type(aml_buffer)) { + case ACPI_RESOURCE_NAME_IRQ: + /* + * IRQ Resource: + * Get the number of bits set in the 16-bit IRQ mask + */ + ACPI_MOVE_16_TO_16(&temp16, buffer); + extra_struct_bytes = acpi_rs_count_set_bits(temp16); + break; + + case ACPI_RESOURCE_NAME_DMA: + /* + * DMA Resource: + * Get the number of bits set in the 8-bit DMA mask + */ + extra_struct_bytes = acpi_rs_count_set_bits(*buffer); + break; + + case ACPI_RESOURCE_NAME_VENDOR_SMALL: + case ACPI_RESOURCE_NAME_VENDOR_LARGE: + /* + * Vendor Resource: + * Get the number of vendor data bytes + */ + extra_struct_bytes = resource_length; + break; + + case ACPI_RESOURCE_NAME_END_TAG: + /* + * End Tag: + * This is the normal exit, add size of end_tag + */ + *size_needed += ACPI_RS_SIZE_MIN; + return_ACPI_STATUS(AE_OK); + + case ACPI_RESOURCE_NAME_ADDRESS32: + case ACPI_RESOURCE_NAME_ADDRESS16: + case ACPI_RESOURCE_NAME_ADDRESS64: + /* + * Address Resource: + * Add the size of the optional resource_source + */ + extra_struct_bytes = + acpi_rs_stream_option_length(resource_length, + minimum_aml_resource_length); + break; + + case ACPI_RESOURCE_NAME_EXTENDED_IRQ: + /* + * Extended IRQ Resource: + * Using the interrupt_table_length, add 4 bytes for each additional + * interrupt. Note: at least one interrupt is required and is + * included in the minimum descriptor size (reason for the -1) + */ + extra_struct_bytes = (buffer[1] - 1) * sizeof(u32); + + /* Add the size of the optional resource_source */ + + extra_struct_bytes += + acpi_rs_stream_option_length(resource_length - + extra_struct_bytes, + minimum_aml_resource_length); + break; + + default: + break; + } + + /* + * Update the required buffer size for the internal descriptor structs + * + * Important: Round the size up for the appropriate alignment. This + * is a requirement on IA64. + */ + buffer_size = acpi_gbl_resource_struct_sizes[resource_index] + + extra_struct_bytes; + buffer_size = (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(buffer_size); + + *size_needed += buffer_size; + + ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, + "Type %.2X, AmlLength %.2X InternalLength %.2X\n", + acpi_ut_get_resource_type(aml_buffer), + acpi_ut_get_descriptor_length(aml_buffer), + buffer_size)); + + /* + * Point to the next resource within the AML stream using the length + * contained in the resource descriptor header + */ + aml_buffer += acpi_ut_get_descriptor_length(aml_buffer); + } + + /* Did not find an end_tag resource descriptor */ + + return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG); +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_get_pci_routing_table_length + * + * PARAMETERS: package_object - Pointer to the package object + * buffer_size_needed - u32 pointer of the size buffer + * needed to properly return the + * parsed data + * + * RETURN: Status + * + * DESCRIPTION: Given a package representing a PCI routing table, this + * calculates the size of the corresponding linked list of + * descriptions. + * + ******************************************************************************/ + +acpi_status +acpi_rs_get_pci_routing_table_length(union acpi_operand_object *package_object, + acpi_size * buffer_size_needed) +{ + u32 number_of_elements; + acpi_size temp_size_needed = 0; + union acpi_operand_object **top_object_list; + u32 index; + union acpi_operand_object *package_element; + union acpi_operand_object **sub_object_list; + u8 name_found; + u32 table_index; + + ACPI_FUNCTION_TRACE(rs_get_pci_routing_table_length); + + number_of_elements = package_object->package.count; + + /* + * Calculate the size of the return buffer. + * The base size is the number of elements * the sizes of the + * structures. Additional space for the strings is added below. + * The minus one is to subtract the size of the u8 Source[1] + * member because it is added below. + * + * But each PRT_ENTRY structure has a pointer to a string and + * the size of that string must be found. + */ + top_object_list = package_object->package.elements; + + for (index = 0; index < number_of_elements; index++) { + + /* Dereference the sub-package */ + + package_element = *top_object_list; + + /* + * The sub_object_list will now point to an array of the + * four IRQ elements: Address, Pin, Source and source_index + */ + sub_object_list = package_element->package.elements; + + /* Scan the irq_table_elements for the Source Name String */ + + name_found = FALSE; + + for (table_index = 0; table_index < 4 && !name_found; + table_index++) { + if (*sub_object_list && /* Null object allowed */ + ((ACPI_TYPE_STRING == + ACPI_GET_OBJECT_TYPE(*sub_object_list)) || + ((ACPI_TYPE_LOCAL_REFERENCE == + ACPI_GET_OBJECT_TYPE(*sub_object_list)) && + ((*sub_object_list)->reference.class == + ACPI_REFCLASS_NAME)))) { + name_found = TRUE; + } else { + /* Look at the next element */ + + sub_object_list++; + } + } + + temp_size_needed += (sizeof(struct acpi_pci_routing_table) - 4); + + /* Was a String type found? */ + + if (name_found) { + if (ACPI_GET_OBJECT_TYPE(*sub_object_list) == + ACPI_TYPE_STRING) { + /* + * The length String.Length field does not include the + * terminating NULL, add 1 + */ + temp_size_needed += ((acpi_size) + (*sub_object_list)->string. + length + 1); + } else { + temp_size_needed += + acpi_ns_get_pathname_length((*sub_object_list)->reference.node); + if (!temp_size_needed) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + } + } else { + /* + * If no name was found, then this is a NULL, which is + * translated as a u32 zero. + */ + temp_size_needed += sizeof(u32); + } + + /* Round up the size since each element must be aligned */ + + temp_size_needed = ACPI_ROUND_UP_TO_64BIT(temp_size_needed); + + /* Point to the next union acpi_operand_object */ + + top_object_list++; + } + + /* + * Add an extra element to the end of the list, essentially a + * NULL terminator + */ + *buffer_size_needed = + temp_size_needed + sizeof(struct acpi_pci_routing_table); + return_ACPI_STATUS(AE_OK); +} diff --git a/drivers/acpi/acpica/rscreate.c b/drivers/acpi/acpica/rscreate.c new file mode 100644 index 000000000000..3ca606974d51 --- /dev/null +++ b/drivers/acpi/acpica/rscreate.c @@ -0,0 +1,468 @@ +/******************************************************************************* + * + * Module Name: rscreate - Create resource lists/tables + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include + +#define _COMPONENT ACPI_RESOURCES +ACPI_MODULE_NAME("rscreate") + +/******************************************************************************* + * + * FUNCTION: acpi_rs_create_resource_list + * + * PARAMETERS: aml_buffer - Pointer to the resource byte stream + * output_buffer - Pointer to the user's buffer + * + * RETURN: Status: AE_OK if okay, else a valid acpi_status code + * If output_buffer is not large enough, output_buffer_length + * indicates how large output_buffer should be, else it + * indicates how may u8 elements of output_buffer are valid. + * + * DESCRIPTION: Takes the byte stream returned from a _CRS, _PRS control method + * execution and parses the stream to create a linked list + * of device resources. + * + ******************************************************************************/ +acpi_status +acpi_rs_create_resource_list(union acpi_operand_object *aml_buffer, + struct acpi_buffer *output_buffer) +{ + + acpi_status status; + u8 *aml_start; + acpi_size list_size_needed = 0; + u32 aml_buffer_length; + void *resource; + + ACPI_FUNCTION_TRACE(rs_create_resource_list); + + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "AmlBuffer = %p\n", aml_buffer)); + + /* Params already validated, so we don't re-validate here */ + + aml_buffer_length = aml_buffer->buffer.length; + aml_start = aml_buffer->buffer.pointer; + + /* + * Pass the aml_buffer into a module that can calculate + * the buffer size needed for the linked list + */ + status = acpi_rs_get_list_length(aml_start, aml_buffer_length, + &list_size_needed); + + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Status=%X ListSizeNeeded=%X\n", + status, (u32) list_size_needed)); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Validate/Allocate/Clear caller buffer */ + + status = acpi_ut_initialize_buffer(output_buffer, list_size_needed); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Do the conversion */ + + resource = output_buffer->pointer; + status = acpi_ut_walk_aml_resources(aml_start, aml_buffer_length, + acpi_rs_convert_aml_to_resources, + &resource); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "OutputBuffer %p Length %X\n", + output_buffer->pointer, (u32) output_buffer->length)); + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_create_pci_routing_table + * + * PARAMETERS: package_object - Pointer to an union acpi_operand_object + * package + * output_buffer - Pointer to the user's buffer + * + * RETURN: Status AE_OK if okay, else a valid acpi_status code. + * If the output_buffer is too small, the error will be + * AE_BUFFER_OVERFLOW and output_buffer->Length will point + * to the size buffer needed. + * + * DESCRIPTION: Takes the union acpi_operand_object package and creates a + * linked list of PCI interrupt descriptions + * + * NOTE: It is the caller's responsibility to ensure that the start of the + * output buffer is aligned properly (if necessary). + * + ******************************************************************************/ + +acpi_status +acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, + struct acpi_buffer *output_buffer) +{ + u8 *buffer; + union acpi_operand_object **top_object_list; + union acpi_operand_object **sub_object_list; + union acpi_operand_object *obj_desc; + acpi_size buffer_size_needed = 0; + u32 number_of_elements; + u32 index; + struct acpi_pci_routing_table *user_prt; + struct acpi_namespace_node *node; + acpi_status status; + struct acpi_buffer path_buffer; + + ACPI_FUNCTION_TRACE(rs_create_pci_routing_table); + + /* Params already validated, so we don't re-validate here */ + + /* Get the required buffer length */ + + status = acpi_rs_get_pci_routing_table_length(package_object, + &buffer_size_needed); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "BufferSizeNeeded = %X\n", + (u32) buffer_size_needed)); + + /* Validate/Allocate/Clear caller buffer */ + + status = acpi_ut_initialize_buffer(output_buffer, buffer_size_needed); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * Loop through the ACPI_INTERNAL_OBJECTS - Each object should be a + * package that in turn contains an acpi_integer Address, a u8 Pin, + * a Name, and a u8 source_index. + */ + top_object_list = package_object->package.elements; + number_of_elements = package_object->package.count; + buffer = output_buffer->pointer; + user_prt = ACPI_CAST_PTR(struct acpi_pci_routing_table, buffer); + + for (index = 0; index < number_of_elements; index++) { + int source_name_index = 2; + int source_index_index = 3; + + /* + * Point user_prt past this current structure + * + * NOTE: On the first iteration, user_prt->Length will + * be zero because we cleared the return buffer earlier + */ + buffer += user_prt->length; + user_prt = ACPI_CAST_PTR(struct acpi_pci_routing_table, buffer); + + /* + * Fill in the Length field with the information we have at this point. + * The minus four is to subtract the size of the u8 Source[4] member + * because it is added below. + */ + user_prt->length = (sizeof(struct acpi_pci_routing_table) - 4); + + /* Each element of the top-level package must also be a package */ + + if (ACPI_GET_OBJECT_TYPE(*top_object_list) != ACPI_TYPE_PACKAGE) { + ACPI_ERROR((AE_INFO, + "(PRT[%X]) Need sub-package, found %s", + index, + acpi_ut_get_object_type_name + (*top_object_list))); + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + } + + /* Each sub-package must be of length 4 */ + + if ((*top_object_list)->package.count != 4) { + ACPI_ERROR((AE_INFO, + "(PRT[%X]) Need package of length 4, found length %d", + index, (*top_object_list)->package.count)); + return_ACPI_STATUS(AE_AML_PACKAGE_LIMIT); + } + + /* + * Dereference the sub-package. + * The sub_object_list will now point to an array of the four IRQ + * elements: [Address, Pin, Source, source_index] + */ + sub_object_list = (*top_object_list)->package.elements; + + /* 1) First subobject: Dereference the PRT.Address */ + + obj_desc = sub_object_list[0]; + if (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_INTEGER) { + ACPI_ERROR((AE_INFO, + "(PRT[%X].Address) Need Integer, found %s", + index, + acpi_ut_get_object_type_name(obj_desc))); + return_ACPI_STATUS(AE_BAD_DATA); + } + + user_prt->address = obj_desc->integer.value; + + /* 2) Second subobject: Dereference the PRT.Pin */ + + obj_desc = sub_object_list[1]; + if (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_INTEGER) { + ACPI_ERROR((AE_INFO, + "(PRT[%X].Pin) Need Integer, found %s", + index, + acpi_ut_get_object_type_name(obj_desc))); + return_ACPI_STATUS(AE_BAD_DATA); + } + + /* + * If BIOS erroneously reversed the _PRT source_name and source_index, + * then reverse them back. + */ + if (ACPI_GET_OBJECT_TYPE(sub_object_list[3]) != + ACPI_TYPE_INTEGER) { + if (acpi_gbl_enable_interpreter_slack) { + source_name_index = 3; + source_index_index = 2; + printk(KERN_WARNING + "ACPI: Handling Garbled _PRT entry\n"); + } else { + ACPI_ERROR((AE_INFO, + "(PRT[%X].source_index) Need Integer, found %s", + index, + acpi_ut_get_object_type_name + (sub_object_list[3]))); + return_ACPI_STATUS(AE_BAD_DATA); + } + } + + user_prt->pin = (u32) obj_desc->integer.value; + + /* + * If the BIOS has erroneously reversed the _PRT source_name (index 2) + * and the source_index (index 3), fix it. _PRT is important enough to + * workaround this BIOS error. This also provides compatibility with + * other ACPI implementations. + */ + obj_desc = sub_object_list[3]; + if (!obj_desc + || (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_INTEGER)) { + sub_object_list[3] = sub_object_list[2]; + sub_object_list[2] = obj_desc; + + ACPI_WARNING((AE_INFO, + "(PRT[%X].Source) SourceName and SourceIndex are reversed, fixed", + index)); + } + + /* + * 3) Third subobject: Dereference the PRT.source_name + * The name may be unresolved (slack mode), so allow a null object + */ + obj_desc = sub_object_list[source_name_index]; + if (obj_desc) { + switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { + case ACPI_TYPE_LOCAL_REFERENCE: + + if (obj_desc->reference.class != + ACPI_REFCLASS_NAME) { + ACPI_ERROR((AE_INFO, + "(PRT[%X].Source) Need name, found Reference Class %X", + index, + obj_desc->reference.class)); + return_ACPI_STATUS(AE_BAD_DATA); + } + + node = obj_desc->reference.node; + + /* Use *remaining* length of the buffer as max for pathname */ + + path_buffer.length = output_buffer->length - + (u32) ((u8 *) user_prt->source - + (u8 *) output_buffer->pointer); + path_buffer.pointer = user_prt->source; + + status = + acpi_ns_handle_to_pathname((acpi_handle) + node, + &path_buffer); + + /* +1 to include null terminator */ + + user_prt->length += + (u32) ACPI_STRLEN(user_prt->source) + 1; + break; + + case ACPI_TYPE_STRING: + + ACPI_STRCPY(user_prt->source, + obj_desc->string.pointer); + + /* + * Add to the Length field the length of the string + * (add 1 for terminator) + */ + user_prt->length += obj_desc->string.length + 1; + break; + + case ACPI_TYPE_INTEGER: + /* + * If this is a number, then the Source Name is NULL, since the + * entire buffer was zeroed out, we can leave this alone. + * + * Add to the Length field the length of the u32 NULL + */ + user_prt->length += sizeof(u32); + break; + + default: + + ACPI_ERROR((AE_INFO, + "(PRT[%X].Source) Need Ref/String/Integer, found %s", + index, + acpi_ut_get_object_type_name + (obj_desc))); + return_ACPI_STATUS(AE_BAD_DATA); + } + } + + /* Now align the current length */ + + user_prt->length = + (u32) ACPI_ROUND_UP_TO_64BIT(user_prt->length); + + /* 4) Fourth subobject: Dereference the PRT.source_index */ + + obj_desc = sub_object_list[source_index_index]; + if (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_INTEGER) { + ACPI_ERROR((AE_INFO, + "(PRT[%X].SourceIndex) Need Integer, found %s", + index, + acpi_ut_get_object_type_name(obj_desc))); + return_ACPI_STATUS(AE_BAD_DATA); + } + + user_prt->source_index = (u32) obj_desc->integer.value; + + /* Point to the next union acpi_operand_object in the top level package */ + + top_object_list++; + } + + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "OutputBuffer %p Length %X\n", + output_buffer->pointer, (u32) output_buffer->length)); + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_create_aml_resources + * + * PARAMETERS: linked_list_buffer - Pointer to the resource linked list + * output_buffer - Pointer to the user's buffer + * + * RETURN: Status AE_OK if okay, else a valid acpi_status code. + * If the output_buffer is too small, the error will be + * AE_BUFFER_OVERFLOW and output_buffer->Length will point + * to the size buffer needed. + * + * DESCRIPTION: Takes the linked list of device resources and + * creates a bytestream to be used as input for the + * _SRS control method. + * + ******************************************************************************/ + +acpi_status +acpi_rs_create_aml_resources(struct acpi_resource *linked_list_buffer, + struct acpi_buffer *output_buffer) +{ + acpi_status status; + acpi_size aml_size_needed = 0; + + ACPI_FUNCTION_TRACE(rs_create_aml_resources); + + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "LinkedListBuffer = %p\n", + linked_list_buffer)); + + /* + * Params already validated, so we don't re-validate here + * + * Pass the linked_list_buffer into a module that calculates + * the buffer size needed for the byte stream. + */ + status = acpi_rs_get_aml_length(linked_list_buffer, &aml_size_needed); + + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "AmlSizeNeeded=%X, %s\n", + (u32) aml_size_needed, + acpi_format_exception(status))); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Validate/Allocate/Clear caller buffer */ + + status = acpi_ut_initialize_buffer(output_buffer, aml_size_needed); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Do the conversion */ + + status = + acpi_rs_convert_resources_to_aml(linked_list_buffer, + aml_size_needed, + output_buffer->pointer); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "OutputBuffer %p Length %X\n", + output_buffer->pointer, (u32) output_buffer->length)); + return_ACPI_STATUS(AE_OK); +} diff --git a/drivers/acpi/acpica/rsdump.c b/drivers/acpi/acpica/rsdump.c new file mode 100644 index 000000000000..936a59be39fa --- /dev/null +++ b/drivers/acpi/acpica/rsdump.c @@ -0,0 +1,771 @@ +/******************************************************************************* + * + * Module Name: rsdump - Functions to display the resource structures. + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_RESOURCES +ACPI_MODULE_NAME("rsdump") +#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) +/* Local prototypes */ +static void acpi_rs_out_string(char *title, char *value); + +static void acpi_rs_out_integer8(char *title, u8 value); + +static void acpi_rs_out_integer16(char *title, u16 value); + +static void acpi_rs_out_integer32(char *title, u32 value); + +static void acpi_rs_out_integer64(char *title, u64 value); + +static void acpi_rs_out_title(char *title); + +static void acpi_rs_dump_byte_list(u16 length, u8 * data); + +static void acpi_rs_dump_dword_list(u8 length, u32 * data); + +static void acpi_rs_dump_short_byte_list(u8 length, u8 * data); + +static void +acpi_rs_dump_resource_source(struct acpi_resource_source *resource_source); + +static void acpi_rs_dump_address_common(union acpi_resource_data *resource); + +static void +acpi_rs_dump_descriptor(void *resource, struct acpi_rsdump_info *table); + +#define ACPI_RSD_OFFSET(f) (u8) ACPI_OFFSET (union acpi_resource_data,f) +#define ACPI_PRT_OFFSET(f) (u8) ACPI_OFFSET (struct acpi_pci_routing_table,f) +#define ACPI_RSD_TABLE_SIZE(name) (sizeof(name) / sizeof (struct acpi_rsdump_info)) + +/******************************************************************************* + * + * Resource Descriptor info tables + * + * Note: The first table entry must be a Title or Literal and must contain + * the table length (number of table entries) + * + ******************************************************************************/ + +struct acpi_rsdump_info acpi_rs_dump_irq[7] = { + {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_irq), "IRQ", NULL}, + {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(irq.descriptor_length), + "Descriptor Length", NULL}, + {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(irq.triggering), "Triggering", + acpi_gbl_he_decode}, + {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(irq.polarity), "Polarity", + acpi_gbl_ll_decode}, + {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(irq.sharable), "Sharing", + acpi_gbl_shr_decode}, + {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(irq.interrupt_count), + "Interrupt Count", NULL}, + {ACPI_RSD_SHORTLIST, ACPI_RSD_OFFSET(irq.interrupts[0]), + "Interrupt List", NULL} +}; + +struct acpi_rsdump_info acpi_rs_dump_dma[6] = { + {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_dma), "DMA", NULL}, + {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(dma.type), "Speed", + acpi_gbl_typ_decode}, + {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(dma.bus_master), "Mastering", + acpi_gbl_bm_decode}, + {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(dma.transfer), "Transfer Type", + acpi_gbl_siz_decode}, + {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(dma.channel_count), "Channel Count", + NULL}, + {ACPI_RSD_SHORTLIST, ACPI_RSD_OFFSET(dma.channels[0]), "Channel List", + NULL} +}; + +struct acpi_rsdump_info acpi_rs_dump_start_dpf[4] = { + {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_start_dpf), + "Start-Dependent-Functions", NULL}, + {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(start_dpf.descriptor_length), + "Descriptor Length", NULL}, + {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(start_dpf.compatibility_priority), + "Compatibility Priority", acpi_gbl_config_decode}, + {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(start_dpf.performance_robustness), + "Performance/Robustness", acpi_gbl_config_decode} +}; + +struct acpi_rsdump_info acpi_rs_dump_end_dpf[1] = { + {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_end_dpf), + "End-Dependent-Functions", NULL} +}; + +struct acpi_rsdump_info acpi_rs_dump_io[6] = { + {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_io), "I/O", NULL}, + {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(io.io_decode), "Address Decoding", + acpi_gbl_io_decode}, + {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(io.minimum), "Address Minimum", NULL}, + {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(io.maximum), "Address Maximum", NULL}, + {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(io.alignment), "Alignment", NULL}, + {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(io.address_length), "Address Length", + NULL} +}; + +struct acpi_rsdump_info acpi_rs_dump_fixed_io[3] = { + {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_fixed_io), + "Fixed I/O", NULL}, + {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(fixed_io.address), "Address", NULL}, + {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(fixed_io.address_length), + "Address Length", NULL} +}; + +struct acpi_rsdump_info acpi_rs_dump_vendor[3] = { + {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_vendor), + "Vendor Specific", NULL}, + {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(vendor.byte_length), "Length", NULL}, + {ACPI_RSD_LONGLIST, ACPI_RSD_OFFSET(vendor.byte_data[0]), "Vendor Data", + NULL} +}; + +struct acpi_rsdump_info acpi_rs_dump_end_tag[1] = { + {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_end_tag), "EndTag", + NULL} +}; + +struct acpi_rsdump_info acpi_rs_dump_memory24[6] = { + {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_memory24), + "24-Bit Memory Range", NULL}, + {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(memory24.write_protect), + "Write Protect", acpi_gbl_rw_decode}, + {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(memory24.minimum), "Address Minimum", + NULL}, + {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(memory24.maximum), "Address Maximum", + NULL}, + {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(memory24.alignment), "Alignment", + NULL}, + {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(memory24.address_length), + "Address Length", NULL} +}; + +struct acpi_rsdump_info acpi_rs_dump_memory32[6] = { + {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_memory32), + "32-Bit Memory Range", NULL}, + {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(memory32.write_protect), + "Write Protect", acpi_gbl_rw_decode}, + {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(memory32.minimum), "Address Minimum", + NULL}, + {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(memory32.maximum), "Address Maximum", + NULL}, + {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(memory32.alignment), "Alignment", + NULL}, + {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(memory32.address_length), + "Address Length", NULL} +}; + +struct acpi_rsdump_info acpi_rs_dump_fixed_memory32[4] = { + {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_fixed_memory32), + "32-Bit Fixed Memory Range", NULL}, + {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(fixed_memory32.write_protect), + "Write Protect", acpi_gbl_rw_decode}, + {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(fixed_memory32.address), "Address", + NULL}, + {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(fixed_memory32.address_length), + "Address Length", NULL} +}; + +struct acpi_rsdump_info acpi_rs_dump_address16[8] = { + {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_address16), + "16-Bit WORD Address Space", NULL}, + {ACPI_RSD_ADDRESS, 0, NULL, NULL}, + {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.granularity), "Granularity", + NULL}, + {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.minimum), "Address Minimum", + NULL}, + {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.maximum), "Address Maximum", + NULL}, + {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.translation_offset), + "Translation Offset", NULL}, + {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.address_length), + "Address Length", NULL}, + {ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(address16.resource_source), NULL, NULL} +}; + +struct acpi_rsdump_info acpi_rs_dump_address32[8] = { + {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_address32), + "32-Bit DWORD Address Space", NULL}, + {ACPI_RSD_ADDRESS, 0, NULL, NULL}, + {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.granularity), "Granularity", + NULL}, + {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.minimum), "Address Minimum", + NULL}, + {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.maximum), "Address Maximum", + NULL}, + {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.translation_offset), + "Translation Offset", NULL}, + {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.address_length), + "Address Length", NULL}, + {ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(address32.resource_source), NULL, NULL} +}; + +struct acpi_rsdump_info acpi_rs_dump_address64[8] = { + {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_address64), + "64-Bit QWORD Address Space", NULL}, + {ACPI_RSD_ADDRESS, 0, NULL, NULL}, + {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.granularity), "Granularity", + NULL}, + {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.minimum), "Address Minimum", + NULL}, + {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.maximum), "Address Maximum", + NULL}, + {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.translation_offset), + "Translation Offset", NULL}, + {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.address_length), + "Address Length", NULL}, + {ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(address64.resource_source), NULL, NULL} +}; + +struct acpi_rsdump_info acpi_rs_dump_ext_address64[8] = { + {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_ext_address64), + "64-Bit Extended Address Space", NULL}, + {ACPI_RSD_ADDRESS, 0, NULL, NULL}, + {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.granularity), + "Granularity", NULL}, + {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.minimum), + "Address Minimum", NULL}, + {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.maximum), + "Address Maximum", NULL}, + {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.translation_offset), + "Translation Offset", NULL}, + {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.address_length), + "Address Length", NULL}, + {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.type_specific), + "Type-Specific Attribute", NULL} +}; + +struct acpi_rsdump_info acpi_rs_dump_ext_irq[8] = { + {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_ext_irq), + "Extended IRQ", NULL}, + {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.producer_consumer), + "Type", acpi_gbl_consume_decode}, + {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.triggering), + "Triggering", acpi_gbl_he_decode}, + {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.polarity), "Polarity", + acpi_gbl_ll_decode}, + {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.sharable), "Sharing", + acpi_gbl_shr_decode}, + {ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(extended_irq.resource_source), NULL, + NULL}, + {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(extended_irq.interrupt_count), + "Interrupt Count", NULL}, + {ACPI_RSD_DWORDLIST, ACPI_RSD_OFFSET(extended_irq.interrupts[0]), + "Interrupt List", NULL} +}; + +struct acpi_rsdump_info acpi_rs_dump_generic_reg[6] = { + {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_generic_reg), + "Generic Register", NULL}, + {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(generic_reg.space_id), "Space ID", + NULL}, + {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(generic_reg.bit_width), "Bit Width", + NULL}, + {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(generic_reg.bit_offset), "Bit Offset", + NULL}, + {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(generic_reg.access_size), + "Access Size", NULL}, + {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(generic_reg.address), "Address", NULL} +}; + +/* + * Tables used for common address descriptor flag fields + */ +static struct acpi_rsdump_info acpi_rs_dump_general_flags[5] = { + {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_general_flags), NULL, + NULL}, + {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.producer_consumer), + "Consumer/Producer", acpi_gbl_consume_decode}, + {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.decode), "Address Decode", + acpi_gbl_dec_decode}, + {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.min_address_fixed), + "Min Relocatability", acpi_gbl_min_decode}, + {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.max_address_fixed), + "Max Relocatability", acpi_gbl_max_decode} +}; + +static struct acpi_rsdump_info acpi_rs_dump_memory_flags[5] = { + {ACPI_RSD_LITERAL, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_memory_flags), + "Resource Type", (void *)"Memory Range"}, + {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.mem.write_protect), + "Write Protect", acpi_gbl_rw_decode}, + {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(address.info.mem.caching), + "Caching", acpi_gbl_mem_decode}, + {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(address.info.mem.range_type), + "Range Type", acpi_gbl_mtp_decode}, + {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.mem.translation), + "Translation", acpi_gbl_ttp_decode} +}; + +static struct acpi_rsdump_info acpi_rs_dump_io_flags[4] = { + {ACPI_RSD_LITERAL, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_io_flags), + "Resource Type", (void *)"I/O Range"}, + {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(address.info.io.range_type), + "Range Type", acpi_gbl_rng_decode}, + {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.io.translation), + "Translation", acpi_gbl_ttp_decode}, + {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.io.translation_type), + "Translation Type", acpi_gbl_trs_decode} +}; + +/* + * Table used to dump _PRT contents + */ +static struct acpi_rsdump_info acpi_rs_dump_prt[5] = { + {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_prt), NULL, NULL}, + {ACPI_RSD_UINT64, ACPI_PRT_OFFSET(address), "Address", NULL}, + {ACPI_RSD_UINT32, ACPI_PRT_OFFSET(pin), "Pin", NULL}, + {ACPI_RSD_STRING, ACPI_PRT_OFFSET(source[0]), "Source", NULL}, + {ACPI_RSD_UINT32, ACPI_PRT_OFFSET(source_index), "Source Index", NULL} +}; + +/******************************************************************************* + * + * FUNCTION: acpi_rs_dump_descriptor + * + * PARAMETERS: Resource + * + * RETURN: None + * + * DESCRIPTION: + * + ******************************************************************************/ + +static void +acpi_rs_dump_descriptor(void *resource, struct acpi_rsdump_info *table) +{ + u8 *target = NULL; + u8 *previous_target; + char *name; + u8 count; + + /* First table entry must contain the table length (# of table entries) */ + + count = table->offset; + + while (count) { + previous_target = target; + target = ACPI_ADD_PTR(u8, resource, table->offset); + name = table->name; + + switch (table->opcode) { + case ACPI_RSD_TITLE: + /* + * Optional resource title + */ + if (table->name) { + acpi_os_printf("%s Resource\n", name); + } + break; + + /* Strings */ + + case ACPI_RSD_LITERAL: + acpi_rs_out_string(name, + ACPI_CAST_PTR(char, table->pointer)); + break; + + case ACPI_RSD_STRING: + acpi_rs_out_string(name, ACPI_CAST_PTR(char, target)); + break; + + /* Data items, 8/16/32/64 bit */ + + case ACPI_RSD_UINT8: + acpi_rs_out_integer8(name, ACPI_GET8(target)); + break; + + case ACPI_RSD_UINT16: + acpi_rs_out_integer16(name, ACPI_GET16(target)); + break; + + case ACPI_RSD_UINT32: + acpi_rs_out_integer32(name, ACPI_GET32(target)); + break; + + case ACPI_RSD_UINT64: + acpi_rs_out_integer64(name, ACPI_GET64(target)); + break; + + /* Flags: 1-bit and 2-bit flags supported */ + + case ACPI_RSD_1BITFLAG: + acpi_rs_out_string(name, ACPI_CAST_PTR(char, + table-> + pointer[*target & + 0x01])); + break; + + case ACPI_RSD_2BITFLAG: + acpi_rs_out_string(name, ACPI_CAST_PTR(char, + table-> + pointer[*target & + 0x03])); + break; + + case ACPI_RSD_SHORTLIST: + /* + * Short byte list (single line output) for DMA and IRQ resources + * Note: The list length is obtained from the previous table entry + */ + if (previous_target) { + acpi_rs_out_title(name); + acpi_rs_dump_short_byte_list(*previous_target, + target); + } + break; + + case ACPI_RSD_LONGLIST: + /* + * Long byte list for Vendor resource data + * Note: The list length is obtained from the previous table entry + */ + if (previous_target) { + acpi_rs_dump_byte_list(ACPI_GET16 + (previous_target), + target); + } + break; + + case ACPI_RSD_DWORDLIST: + /* + * Dword list for Extended Interrupt resources + * Note: The list length is obtained from the previous table entry + */ + if (previous_target) { + acpi_rs_dump_dword_list(*previous_target, + ACPI_CAST_PTR(u32, + target)); + } + break; + + case ACPI_RSD_ADDRESS: + /* + * Common flags for all Address resources + */ + acpi_rs_dump_address_common(ACPI_CAST_PTR + (union acpi_resource_data, + target)); + break; + + case ACPI_RSD_SOURCE: + /* + * Optional resource_source for Address resources + */ + acpi_rs_dump_resource_source(ACPI_CAST_PTR(struct + acpi_resource_source, + target)); + break; + + default: + acpi_os_printf("**** Invalid table opcode [%X] ****\n", + table->opcode); + return; + } + + table++; + count--; + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_dump_resource_source + * + * PARAMETERS: resource_source - Pointer to a Resource Source struct + * + * RETURN: None + * + * DESCRIPTION: Common routine for dumping the optional resource_source and the + * corresponding resource_source_index. + * + ******************************************************************************/ + +static void +acpi_rs_dump_resource_source(struct acpi_resource_source *resource_source) +{ + ACPI_FUNCTION_ENTRY(); + + if (resource_source->index == 0xFF) { + return; + } + + acpi_rs_out_integer8("Resource Source Index", resource_source->index); + + acpi_rs_out_string("Resource Source", + resource_source->string_ptr ? + resource_source->string_ptr : "[Not Specified]"); +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_dump_address_common + * + * PARAMETERS: Resource - Pointer to an internal resource descriptor + * + * RETURN: None + * + * DESCRIPTION: Dump the fields that are common to all Address resource + * descriptors + * + ******************************************************************************/ + +static void acpi_rs_dump_address_common(union acpi_resource_data *resource) +{ + ACPI_FUNCTION_ENTRY(); + + /* Decode the type-specific flags */ + + switch (resource->address.resource_type) { + case ACPI_MEMORY_RANGE: + + acpi_rs_dump_descriptor(resource, acpi_rs_dump_memory_flags); + break; + + case ACPI_IO_RANGE: + + acpi_rs_dump_descriptor(resource, acpi_rs_dump_io_flags); + break; + + case ACPI_BUS_NUMBER_RANGE: + + acpi_rs_out_string("Resource Type", "Bus Number Range"); + break; + + default: + + acpi_rs_out_integer8("Resource Type", + (u8) resource->address.resource_type); + break; + } + + /* Decode the general flags */ + + acpi_rs_dump_descriptor(resource, acpi_rs_dump_general_flags); +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_dump_resource_list + * + * PARAMETERS: resource_list - Pointer to a resource descriptor list + * + * RETURN: None + * + * DESCRIPTION: Dispatches the structure to the correct dump routine. + * + ******************************************************************************/ + +void acpi_rs_dump_resource_list(struct acpi_resource *resource_list) +{ + u32 count = 0; + u32 type; + + ACPI_FUNCTION_ENTRY(); + + if (!(acpi_dbg_level & ACPI_LV_RESOURCES) + || !(_COMPONENT & acpi_dbg_layer)) { + return; + } + + /* Walk list and dump all resource descriptors (END_TAG terminates) */ + + do { + acpi_os_printf("\n[%02X] ", count); + count++; + + /* Validate Type before dispatch */ + + type = resource_list->type; + if (type > ACPI_RESOURCE_TYPE_MAX) { + acpi_os_printf + ("Invalid descriptor type (%X) in resource list\n", + resource_list->type); + return; + } + + /* Dump the resource descriptor */ + + acpi_rs_dump_descriptor(&resource_list->data, + acpi_gbl_dump_resource_dispatch[type]); + + /* Point to the next resource structure */ + + resource_list = + ACPI_ADD_PTR(struct acpi_resource, resource_list, + resource_list->length); + + /* Exit when END_TAG descriptor is reached */ + + } while (type != ACPI_RESOURCE_TYPE_END_TAG); +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_dump_irq_list + * + * PARAMETERS: route_table - Pointer to the routing table to dump. + * + * RETURN: None + * + * DESCRIPTION: Print IRQ routing table + * + ******************************************************************************/ + +void acpi_rs_dump_irq_list(u8 * route_table) +{ + struct acpi_pci_routing_table *prt_element; + u8 count; + + ACPI_FUNCTION_ENTRY(); + + if (!(acpi_dbg_level & ACPI_LV_RESOURCES) + || !(_COMPONENT & acpi_dbg_layer)) { + return; + } + + prt_element = ACPI_CAST_PTR(struct acpi_pci_routing_table, route_table); + + /* Dump all table elements, Exit on zero length element */ + + for (count = 0; prt_element->length; count++) { + acpi_os_printf("\n[%02X] PCI IRQ Routing Table Package\n", + count); + acpi_rs_dump_descriptor(prt_element, acpi_rs_dump_prt); + + prt_element = ACPI_ADD_PTR(struct acpi_pci_routing_table, + prt_element, prt_element->length); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_out* + * + * PARAMETERS: Title - Name of the resource field + * Value - Value of the resource field + * + * RETURN: None + * + * DESCRIPTION: Miscellaneous helper functions to consistently format the + * output of the resource dump routines + * + ******************************************************************************/ + +static void acpi_rs_out_string(char *title, char *value) +{ + acpi_os_printf("%27s : %s", title, value); + if (!*value) { + acpi_os_printf("[NULL NAMESTRING]"); + } + acpi_os_printf("\n"); +} + +static void acpi_rs_out_integer8(char *title, u8 value) +{ + acpi_os_printf("%27s : %2.2X\n", title, value); +} + +static void acpi_rs_out_integer16(char *title, u16 value) +{ + acpi_os_printf("%27s : %4.4X\n", title, value); +} + +static void acpi_rs_out_integer32(char *title, u32 value) +{ + acpi_os_printf("%27s : %8.8X\n", title, value); +} + +static void acpi_rs_out_integer64(char *title, u64 value) +{ + acpi_os_printf("%27s : %8.8X%8.8X\n", title, ACPI_FORMAT_UINT64(value)); +} + +static void acpi_rs_out_title(char *title) +{ + acpi_os_printf("%27s : ", title); +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_dump*List + * + * PARAMETERS: Length - Number of elements in the list + * Data - Start of the list + * + * RETURN: None + * + * DESCRIPTION: Miscellaneous functions to dump lists of raw data + * + ******************************************************************************/ + +static void acpi_rs_dump_byte_list(u16 length, u8 * data) +{ + u8 i; + + for (i = 0; i < length; i++) { + acpi_os_printf("%25s%2.2X : %2.2X\n", "Byte", i, data[i]); + } +} + +static void acpi_rs_dump_short_byte_list(u8 length, u8 * data) +{ + u8 i; + + for (i = 0; i < length; i++) { + acpi_os_printf("%X ", data[i]); + } + acpi_os_printf("\n"); +} + +static void acpi_rs_dump_dword_list(u8 length, u32 * data) +{ + u8 i; + + for (i = 0; i < length; i++) { + acpi_os_printf("%25s%2.2X : %8.8X\n", "Dword", i, data[i]); + } +} + +#endif diff --git a/drivers/acpi/acpica/rsinfo.c b/drivers/acpi/acpica/rsinfo.c new file mode 100644 index 000000000000..aac41cc21344 --- /dev/null +++ b/drivers/acpi/acpica/rsinfo.c @@ -0,0 +1,206 @@ +/******************************************************************************* + * + * Module Name: rsinfo - Dispatch and Info tables + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_RESOURCES +ACPI_MODULE_NAME("rsinfo") + +/* + * Resource dispatch and information tables. Any new resource types (either + * Large or Small) must be reflected in each of these tables, so they are here + * in one place. + * + * The tables for Large descriptors are indexed by bits 6:0 of the AML + * descriptor type byte. The tables for Small descriptors are indexed by + * bits 6:3 of the descriptor byte. The tables for internal resource + * descriptors are indexed by the acpi_resource_type field. + */ +/* Dispatch table for resource-to-AML (Set Resource) conversion functions */ +struct acpi_rsconvert_info *acpi_gbl_set_resource_dispatch[] = { + acpi_rs_set_irq, /* 0x00, ACPI_RESOURCE_TYPE_IRQ */ + acpi_rs_convert_dma, /* 0x01, ACPI_RESOURCE_TYPE_DMA */ + acpi_rs_set_start_dpf, /* 0x02, ACPI_RESOURCE_TYPE_START_DEPENDENT */ + acpi_rs_convert_end_dpf, /* 0x03, ACPI_RESOURCE_TYPE_END_DEPENDENT */ + acpi_rs_convert_io, /* 0x04, ACPI_RESOURCE_TYPE_IO */ + acpi_rs_convert_fixed_io, /* 0x05, ACPI_RESOURCE_TYPE_FIXED_IO */ + acpi_rs_set_vendor, /* 0x06, ACPI_RESOURCE_TYPE_VENDOR */ + acpi_rs_convert_end_tag, /* 0x07, ACPI_RESOURCE_TYPE_END_TAG */ + acpi_rs_convert_memory24, /* 0x08, ACPI_RESOURCE_TYPE_MEMORY24 */ + acpi_rs_convert_memory32, /* 0x09, ACPI_RESOURCE_TYPE_MEMORY32 */ + acpi_rs_convert_fixed_memory32, /* 0x0A, ACPI_RESOURCE_TYPE_FIXED_MEMORY32 */ + acpi_rs_convert_address16, /* 0x0B, ACPI_RESOURCE_TYPE_ADDRESS16 */ + acpi_rs_convert_address32, /* 0x0C, ACPI_RESOURCE_TYPE_ADDRESS32 */ + acpi_rs_convert_address64, /* 0x0D, ACPI_RESOURCE_TYPE_ADDRESS64 */ + acpi_rs_convert_ext_address64, /* 0x0E, ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64 */ + acpi_rs_convert_ext_irq, /* 0x0F, ACPI_RESOURCE_TYPE_EXTENDED_IRQ */ + acpi_rs_convert_generic_reg /* 0x10, ACPI_RESOURCE_TYPE_GENERIC_REGISTER */ +}; + +/* Dispatch tables for AML-to-resource (Get Resource) conversion functions */ + +struct acpi_rsconvert_info *acpi_gbl_get_resource_dispatch[] = { + /* Small descriptors */ + + NULL, /* 0x00, Reserved */ + NULL, /* 0x01, Reserved */ + NULL, /* 0x02, Reserved */ + NULL, /* 0x03, Reserved */ + acpi_rs_get_irq, /* 0x04, ACPI_RESOURCE_NAME_IRQ */ + acpi_rs_convert_dma, /* 0x05, ACPI_RESOURCE_NAME_DMA */ + acpi_rs_get_start_dpf, /* 0x06, ACPI_RESOURCE_NAME_START_DEPENDENT */ + acpi_rs_convert_end_dpf, /* 0x07, ACPI_RESOURCE_NAME_END_DEPENDENT */ + acpi_rs_convert_io, /* 0x08, ACPI_RESOURCE_NAME_IO */ + acpi_rs_convert_fixed_io, /* 0x09, ACPI_RESOURCE_NAME_FIXED_IO */ + NULL, /* 0x0A, Reserved */ + NULL, /* 0x0B, Reserved */ + NULL, /* 0x0C, Reserved */ + NULL, /* 0x0D, Reserved */ + acpi_rs_get_vendor_small, /* 0x0E, ACPI_RESOURCE_NAME_VENDOR_SMALL */ + acpi_rs_convert_end_tag, /* 0x0F, ACPI_RESOURCE_NAME_END_TAG */ + + /* Large descriptors */ + + NULL, /* 0x00, Reserved */ + acpi_rs_convert_memory24, /* 0x01, ACPI_RESOURCE_NAME_MEMORY24 */ + acpi_rs_convert_generic_reg, /* 0x02, ACPI_RESOURCE_NAME_GENERIC_REGISTER */ + NULL, /* 0x03, Reserved */ + acpi_rs_get_vendor_large, /* 0x04, ACPI_RESOURCE_NAME_VENDOR_LARGE */ + acpi_rs_convert_memory32, /* 0x05, ACPI_RESOURCE_NAME_MEMORY32 */ + acpi_rs_convert_fixed_memory32, /* 0x06, ACPI_RESOURCE_NAME_FIXED_MEMORY32 */ + acpi_rs_convert_address32, /* 0x07, ACPI_RESOURCE_NAME_ADDRESS32 */ + acpi_rs_convert_address16, /* 0x08, ACPI_RESOURCE_NAME_ADDRESS16 */ + acpi_rs_convert_ext_irq, /* 0x09, ACPI_RESOURCE_NAME_EXTENDED_IRQ */ + acpi_rs_convert_address64, /* 0x0A, ACPI_RESOURCE_NAME_ADDRESS64 */ + acpi_rs_convert_ext_address64 /* 0x0B, ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64 */ +}; + +#ifdef ACPI_FUTURE_USAGE +#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) + +/* Dispatch table for resource dump functions */ + +struct acpi_rsdump_info *acpi_gbl_dump_resource_dispatch[] = { + acpi_rs_dump_irq, /* ACPI_RESOURCE_TYPE_IRQ */ + acpi_rs_dump_dma, /* ACPI_RESOURCE_TYPE_DMA */ + acpi_rs_dump_start_dpf, /* ACPI_RESOURCE_TYPE_START_DEPENDENT */ + acpi_rs_dump_end_dpf, /* ACPI_RESOURCE_TYPE_END_DEPENDENT */ + acpi_rs_dump_io, /* ACPI_RESOURCE_TYPE_IO */ + acpi_rs_dump_fixed_io, /* ACPI_RESOURCE_TYPE_FIXED_IO */ + acpi_rs_dump_vendor, /* ACPI_RESOURCE_TYPE_VENDOR */ + acpi_rs_dump_end_tag, /* ACPI_RESOURCE_TYPE_END_TAG */ + acpi_rs_dump_memory24, /* ACPI_RESOURCE_TYPE_MEMORY24 */ + acpi_rs_dump_memory32, /* ACPI_RESOURCE_TYPE_MEMORY32 */ + acpi_rs_dump_fixed_memory32, /* ACPI_RESOURCE_TYPE_FIXED_MEMORY32 */ + acpi_rs_dump_address16, /* ACPI_RESOURCE_TYPE_ADDRESS16 */ + acpi_rs_dump_address32, /* ACPI_RESOURCE_TYPE_ADDRESS32 */ + acpi_rs_dump_address64, /* ACPI_RESOURCE_TYPE_ADDRESS64 */ + acpi_rs_dump_ext_address64, /* ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64 */ + acpi_rs_dump_ext_irq, /* ACPI_RESOURCE_TYPE_EXTENDED_IRQ */ + acpi_rs_dump_generic_reg, /* ACPI_RESOURCE_TYPE_GENERIC_REGISTER */ +}; +#endif + +#endif /* ACPI_FUTURE_USAGE */ +/* + * Base sizes for external AML resource descriptors, indexed by internal type. + * Includes size of the descriptor header (1 byte for small descriptors, + * 3 bytes for large descriptors) + */ +const u8 acpi_gbl_aml_resource_sizes[] = { + sizeof(struct aml_resource_irq), /* ACPI_RESOURCE_TYPE_IRQ (optional Byte 3 always created) */ + sizeof(struct aml_resource_dma), /* ACPI_RESOURCE_TYPE_DMA */ + sizeof(struct aml_resource_start_dependent), /* ACPI_RESOURCE_TYPE_START_DEPENDENT (optional Byte 1 always created) */ + sizeof(struct aml_resource_end_dependent), /* ACPI_RESOURCE_TYPE_END_DEPENDENT */ + sizeof(struct aml_resource_io), /* ACPI_RESOURCE_TYPE_IO */ + sizeof(struct aml_resource_fixed_io), /* ACPI_RESOURCE_TYPE_FIXED_IO */ + sizeof(struct aml_resource_vendor_small), /* ACPI_RESOURCE_TYPE_VENDOR */ + sizeof(struct aml_resource_end_tag), /* ACPI_RESOURCE_TYPE_END_TAG */ + sizeof(struct aml_resource_memory24), /* ACPI_RESOURCE_TYPE_MEMORY24 */ + sizeof(struct aml_resource_memory32), /* ACPI_RESOURCE_TYPE_MEMORY32 */ + sizeof(struct aml_resource_fixed_memory32), /* ACPI_RESOURCE_TYPE_FIXED_MEMORY32 */ + sizeof(struct aml_resource_address16), /* ACPI_RESOURCE_TYPE_ADDRESS16 */ + sizeof(struct aml_resource_address32), /* ACPI_RESOURCE_TYPE_ADDRESS32 */ + sizeof(struct aml_resource_address64), /* ACPI_RESOURCE_TYPE_ADDRESS64 */ + sizeof(struct aml_resource_extended_address64), /*ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64 */ + sizeof(struct aml_resource_extended_irq), /* ACPI_RESOURCE_TYPE_EXTENDED_IRQ */ + sizeof(struct aml_resource_generic_register) /* ACPI_RESOURCE_TYPE_GENERIC_REGISTER */ +}; + +const u8 acpi_gbl_resource_struct_sizes[] = { + /* Small descriptors */ + + 0, + 0, + 0, + 0, + ACPI_RS_SIZE(struct acpi_resource_irq), + ACPI_RS_SIZE(struct acpi_resource_dma), + ACPI_RS_SIZE(struct acpi_resource_start_dependent), + ACPI_RS_SIZE_MIN, + ACPI_RS_SIZE(struct acpi_resource_io), + ACPI_RS_SIZE(struct acpi_resource_fixed_io), + 0, + 0, + 0, + 0, + ACPI_RS_SIZE(struct acpi_resource_vendor), + ACPI_RS_SIZE_MIN, + + /* Large descriptors */ + + 0, + ACPI_RS_SIZE(struct acpi_resource_memory24), + ACPI_RS_SIZE(struct acpi_resource_generic_register), + 0, + ACPI_RS_SIZE(struct acpi_resource_vendor), + ACPI_RS_SIZE(struct acpi_resource_memory32), + ACPI_RS_SIZE(struct acpi_resource_fixed_memory32), + ACPI_RS_SIZE(struct acpi_resource_address32), + ACPI_RS_SIZE(struct acpi_resource_address16), + ACPI_RS_SIZE(struct acpi_resource_extended_irq), + ACPI_RS_SIZE(struct acpi_resource_address64), + ACPI_RS_SIZE(struct acpi_resource_extended_address64) +}; diff --git a/drivers/acpi/acpica/rsio.c b/drivers/acpi/acpica/rsio.c new file mode 100644 index 000000000000..d31129aca400 --- /dev/null +++ b/drivers/acpi/acpica/rsio.c @@ -0,0 +1,290 @@ +/******************************************************************************* + * + * Module Name: rsio - IO and DMA resource descriptors + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_RESOURCES +ACPI_MODULE_NAME("rsio") + +/******************************************************************************* + * + * acpi_rs_convert_io + * + ******************************************************************************/ +struct acpi_rsconvert_info acpi_rs_convert_io[5] = { + {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_IO, + ACPI_RS_SIZE(struct acpi_resource_io), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_io)}, + + {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IO, + sizeof(struct aml_resource_io), + 0}, + + /* Decode flag */ + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.io.io_decode), + AML_OFFSET(io.flags), + 0}, + /* + * These fields are contiguous in both the source and destination: + * Address Alignment + * Length + * Minimum Base Address + * Maximum Base Address + */ + {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.io.alignment), + AML_OFFSET(io.alignment), + 2}, + + {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.io.minimum), + AML_OFFSET(io.minimum), + 2} +}; + +/******************************************************************************* + * + * acpi_rs_convert_fixed_io + * + ******************************************************************************/ + +struct acpi_rsconvert_info acpi_rs_convert_fixed_io[4] = { + {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_FIXED_IO, + ACPI_RS_SIZE(struct acpi_resource_fixed_io), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_fixed_io)}, + + {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_FIXED_IO, + sizeof(struct aml_resource_fixed_io), + 0}, + /* + * These fields are contiguous in both the source and destination: + * Base Address + * Length + */ + {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.fixed_io.address_length), + AML_OFFSET(fixed_io.address_length), + 1}, + + {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.fixed_io.address), + AML_OFFSET(fixed_io.address), + 1} +}; + +/******************************************************************************* + * + * acpi_rs_convert_generic_reg + * + ******************************************************************************/ + +struct acpi_rsconvert_info acpi_rs_convert_generic_reg[4] = { + {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_GENERIC_REGISTER, + ACPI_RS_SIZE(struct acpi_resource_generic_register), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_generic_reg)}, + + {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_GENERIC_REGISTER, + sizeof(struct aml_resource_generic_register), + 0}, + /* + * These fields are contiguous in both the source and destination: + * Address Space ID + * Register Bit Width + * Register Bit Offset + * Access Size + */ + {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.generic_reg.space_id), + AML_OFFSET(generic_reg.address_space_id), + 4}, + + /* Get the Register Address */ + + {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.generic_reg.address), + AML_OFFSET(generic_reg.address), + 1} +}; + +/******************************************************************************* + * + * acpi_rs_convert_end_dpf + * + ******************************************************************************/ + +struct acpi_rsconvert_info acpi_rs_convert_end_dpf[2] = { + {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_END_DEPENDENT, + ACPI_RS_SIZE_MIN, + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_end_dpf)}, + + {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_END_DEPENDENT, + sizeof(struct aml_resource_end_dependent), + 0} +}; + +/******************************************************************************* + * + * acpi_rs_convert_end_tag + * + ******************************************************************************/ + +struct acpi_rsconvert_info acpi_rs_convert_end_tag[2] = { + {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_END_TAG, + ACPI_RS_SIZE_MIN, + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_end_tag)}, + + /* + * Note: The checksum field is set to zero, meaning that the resource + * data is treated as if the checksum operation succeeded. + * (ACPI Spec 1.0b Section 6.4.2.8) + */ + {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_END_TAG, + sizeof(struct aml_resource_end_tag), + 0} +}; + +/******************************************************************************* + * + * acpi_rs_get_start_dpf + * + ******************************************************************************/ + +struct acpi_rsconvert_info acpi_rs_get_start_dpf[6] = { + {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_START_DEPENDENT, + ACPI_RS_SIZE(struct acpi_resource_start_dependent), + ACPI_RSC_TABLE_SIZE(acpi_rs_get_start_dpf)}, + + /* Defaults for Compatibility and Performance priorities */ + + {ACPI_RSC_SET8, ACPI_RS_OFFSET(data.start_dpf.compatibility_priority), + ACPI_ACCEPTABLE_CONFIGURATION, + 2}, + + /* Get the descriptor length (0 or 1 for Start Dpf descriptor) */ + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.start_dpf.descriptor_length), + AML_OFFSET(start_dpf.descriptor_type), + 0}, + + /* All done if there is no flag byte present in the descriptor */ + + {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 1}, + + /* Flag byte is present, get the flags */ + + {ACPI_RSC_2BITFLAG, + ACPI_RS_OFFSET(data.start_dpf.compatibility_priority), + AML_OFFSET(start_dpf.flags), + 0}, + + {ACPI_RSC_2BITFLAG, + ACPI_RS_OFFSET(data.start_dpf.performance_robustness), + AML_OFFSET(start_dpf.flags), + 2} +}; + +/******************************************************************************* + * + * acpi_rs_set_start_dpf + * + ******************************************************************************/ + +struct acpi_rsconvert_info acpi_rs_set_start_dpf[10] = { + /* Start with a default descriptor of length 1 */ + + {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_START_DEPENDENT, + sizeof(struct aml_resource_start_dependent), + ACPI_RSC_TABLE_SIZE(acpi_rs_set_start_dpf)}, + + /* Set the default flag values */ + + {ACPI_RSC_2BITFLAG, + ACPI_RS_OFFSET(data.start_dpf.compatibility_priority), + AML_OFFSET(start_dpf.flags), + 0}, + + {ACPI_RSC_2BITFLAG, + ACPI_RS_OFFSET(data.start_dpf.performance_robustness), + AML_OFFSET(start_dpf.flags), + 2}, + /* + * All done if the output descriptor length is required to be 1 + * (i.e., optimization to 0 bytes cannot be attempted) + */ + {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE, + ACPI_RS_OFFSET(data.start_dpf.descriptor_length), + 1}, + + /* Set length to 0 bytes (no flags byte) */ + + {ACPI_RSC_LENGTH, 0, 0, + sizeof(struct aml_resource_start_dependent_noprio)}, + + /* + * All done if the output descriptor length is required to be 0. + * + * TBD: Perhaps we should check for error if input flags are not + * compatible with a 0-byte descriptor. + */ + {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE, + ACPI_RS_OFFSET(data.start_dpf.descriptor_length), + 0}, + + /* Reset length to 1 byte (descriptor with flags byte) */ + + {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_start_dependent)}, + + /* + * All done if flags byte is necessary -- if either priority value + * is not ACPI_ACCEPTABLE_CONFIGURATION + */ + {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE, + ACPI_RS_OFFSET(data.start_dpf.compatibility_priority), + ACPI_ACCEPTABLE_CONFIGURATION}, + + {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE, + ACPI_RS_OFFSET(data.start_dpf.performance_robustness), + ACPI_ACCEPTABLE_CONFIGURATION}, + + /* Flag byte is not necessary */ + + {ACPI_RSC_LENGTH, 0, 0, + sizeof(struct aml_resource_start_dependent_noprio)} +}; diff --git a/drivers/acpi/acpica/rsirq.c b/drivers/acpi/acpica/rsirq.c new file mode 100644 index 000000000000..9a5a08d67313 --- /dev/null +++ b/drivers/acpi/acpica/rsirq.c @@ -0,0 +1,266 @@ +/******************************************************************************* + * + * Module Name: rsirq - IRQ resource descriptors + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_RESOURCES +ACPI_MODULE_NAME("rsirq") + +/******************************************************************************* + * + * acpi_rs_get_irq + * + ******************************************************************************/ +struct acpi_rsconvert_info acpi_rs_get_irq[8] = { + {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_IRQ, + ACPI_RS_SIZE(struct acpi_resource_irq), + ACPI_RSC_TABLE_SIZE(acpi_rs_get_irq)}, + + /* Get the IRQ mask (bytes 1:2) */ + + {ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]), + AML_OFFSET(irq.irq_mask), + ACPI_RS_OFFSET(data.irq.interrupt_count)}, + + /* Set default flags (others are zero) */ + + {ACPI_RSC_SET8, ACPI_RS_OFFSET(data.irq.triggering), + ACPI_EDGE_SENSITIVE, + 1}, + + /* Get the descriptor length (2 or 3 for IRQ descriptor) */ + + {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.irq.descriptor_length), + AML_OFFSET(irq.descriptor_type), + 0}, + + /* All done if no flag byte present in descriptor */ + + {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 3}, + + /* Get flags: Triggering[0], Polarity[3], Sharing[4] */ + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering), + AML_OFFSET(irq.flags), + 0}, + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity), + AML_OFFSET(irq.flags), + 3}, + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable), + AML_OFFSET(irq.flags), + 4} +}; + +/******************************************************************************* + * + * acpi_rs_set_irq + * + ******************************************************************************/ + +struct acpi_rsconvert_info acpi_rs_set_irq[13] = { + /* Start with a default descriptor of length 3 */ + + {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IRQ, + sizeof(struct aml_resource_irq), + ACPI_RSC_TABLE_SIZE(acpi_rs_set_irq)}, + + /* Convert interrupt list to 16-bit IRQ bitmask */ + + {ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]), + AML_OFFSET(irq.irq_mask), + ACPI_RS_OFFSET(data.irq.interrupt_count)}, + + /* Set the flags byte */ + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering), + AML_OFFSET(irq.flags), + 0}, + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity), + AML_OFFSET(irq.flags), + 3}, + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable), + AML_OFFSET(irq.flags), + 4}, + + /* + * All done if the output descriptor length is required to be 3 + * (i.e., optimization to 2 bytes cannot be attempted) + */ + {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE, + ACPI_RS_OFFSET(data.irq.descriptor_length), + 3}, + + /* Set length to 2 bytes (no flags byte) */ + + {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)}, + + /* + * All done if the output descriptor length is required to be 2. + * + * TBD: Perhaps we should check for error if input flags are not + * compatible with a 2-byte descriptor. + */ + {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE, + ACPI_RS_OFFSET(data.irq.descriptor_length), + 2}, + + /* Reset length to 3 bytes (descriptor with flags byte) */ + + {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq)}, + + /* + * Check if the flags byte is necessary. Not needed if the flags are: + * ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_HIGH, ACPI_EXCLUSIVE + */ + {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE, + ACPI_RS_OFFSET(data.irq.triggering), + ACPI_EDGE_SENSITIVE}, + + {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE, + ACPI_RS_OFFSET(data.irq.polarity), + ACPI_ACTIVE_HIGH}, + + {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE, + ACPI_RS_OFFSET(data.irq.sharable), + ACPI_EXCLUSIVE}, + + /* We can optimize to a 2-byte irq_no_flags() descriptor */ + + {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)} +}; + +/******************************************************************************* + * + * acpi_rs_convert_ext_irq + * + ******************************************************************************/ + +struct acpi_rsconvert_info acpi_rs_convert_ext_irq[9] = { + {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_IRQ, + ACPI_RS_SIZE(struct acpi_resource_extended_irq), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_ext_irq)}, + + {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_IRQ, + sizeof(struct aml_resource_extended_irq), + 0}, + + /* Flag bits */ + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.producer_consumer), + AML_OFFSET(extended_irq.flags), + 0}, + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.triggering), + AML_OFFSET(extended_irq.flags), + 1}, + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.polarity), + AML_OFFSET(extended_irq.flags), + 2}, + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.sharable), + AML_OFFSET(extended_irq.flags), + 3}, + + /* IRQ Table length (Byte4) */ + + {ACPI_RSC_COUNT, ACPI_RS_OFFSET(data.extended_irq.interrupt_count), + AML_OFFSET(extended_irq.interrupt_count), + sizeof(u32)} + , + + /* Copy every IRQ in the table, each is 32 bits */ + + {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.extended_irq.interrupts[0]), + AML_OFFSET(extended_irq.interrupts[0]), + 0} + , + + /* Optional resource_source (Index and String) */ + + {ACPI_RSC_SOURCEX, ACPI_RS_OFFSET(data.extended_irq.resource_source), + ACPI_RS_OFFSET(data.extended_irq.interrupts[0]), + sizeof(struct aml_resource_extended_irq)} +}; + +/******************************************************************************* + * + * acpi_rs_convert_dma + * + ******************************************************************************/ + +struct acpi_rsconvert_info acpi_rs_convert_dma[6] = { + {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_DMA, + ACPI_RS_SIZE(struct acpi_resource_dma), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_dma)}, + + {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_DMA, + sizeof(struct aml_resource_dma), + 0}, + + /* Flags: transfer preference, bus mastering, channel speed */ + + {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.transfer), + AML_OFFSET(dma.flags), + 0}, + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.dma.bus_master), + AML_OFFSET(dma.flags), + 2}, + + {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.type), + AML_OFFSET(dma.flags), + 5}, + + /* DMA channel mask bits */ + + {ACPI_RSC_BITMASK, ACPI_RS_OFFSET(data.dma.channels[0]), + AML_OFFSET(dma.dma_channel_mask), + ACPI_RS_OFFSET(data.dma.channel_count)} +}; diff --git a/drivers/acpi/acpica/rslist.c b/drivers/acpi/acpica/rslist.c new file mode 100644 index 000000000000..483389871a50 --- /dev/null +++ b/drivers/acpi/acpica/rslist.c @@ -0,0 +1,203 @@ +/******************************************************************************* + * + * Module Name: rslist - Linked list utilities + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_RESOURCES +ACPI_MODULE_NAME("rslist") + +/******************************************************************************* + * + * FUNCTION: acpi_rs_convert_aml_to_resources + * + * PARAMETERS: acpi_walk_aml_callback + * resource_ptr - Pointer to the buffer that will + * contain the output structures + * + * RETURN: Status + * + * DESCRIPTION: Convert an AML resource to an internal representation of the + * resource that is aligned and easier to access. + * + ******************************************************************************/ +acpi_status +acpi_rs_convert_aml_to_resources(u8 * aml, + u32 length, + u32 offset, u8 resource_index, void **context) +{ + struct acpi_resource **resource_ptr = + ACPI_CAST_INDIRECT_PTR(struct acpi_resource, context); + struct acpi_resource *resource; + acpi_status status; + + ACPI_FUNCTION_TRACE(rs_convert_aml_to_resources); + + /* + * Check that the input buffer and all subsequent pointers into it + * are aligned on a native word boundary. Most important on IA64 + */ + resource = *resource_ptr; + if (ACPI_IS_MISALIGNED(resource)) { + ACPI_WARNING((AE_INFO, + "Misaligned resource pointer %p", resource)); + } + + /* Convert the AML byte stream resource to a local resource struct */ + + status = + acpi_rs_convert_aml_to_resource(resource, + ACPI_CAST_PTR(union aml_resource, + aml), + acpi_gbl_get_resource_dispatch + [resource_index]); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Could not convert AML resource (Type %X)", + *aml)); + return_ACPI_STATUS(status); + } + + ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, + "Type %.2X, AmlLength %.2X InternalLength %.2X\n", + acpi_ut_get_resource_type(aml), length, + resource->length)); + + /* Point to the next structure in the output buffer */ + + *resource_ptr = ACPI_ADD_PTR(void, resource, resource->length); + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_convert_resources_to_aml + * + * PARAMETERS: Resource - Pointer to the resource linked list + * aml_size_needed - Calculated size of the byte stream + * needed from calling acpi_rs_get_aml_length() + * The size of the output_buffer is + * guaranteed to be >= aml_size_needed + * output_buffer - Pointer to the buffer that will + * contain the byte stream + * + * RETURN: Status + * + * DESCRIPTION: Takes the resource linked list and parses it, creating a + * byte stream of resources in the caller's output buffer + * + ******************************************************************************/ + +acpi_status +acpi_rs_convert_resources_to_aml(struct acpi_resource *resource, + acpi_size aml_size_needed, u8 * output_buffer) +{ + u8 *aml = output_buffer; + u8 *end_aml = output_buffer + aml_size_needed; + acpi_status status; + + ACPI_FUNCTION_TRACE(rs_convert_resources_to_aml); + + /* Walk the resource descriptor list, convert each descriptor */ + + while (aml < end_aml) { + + /* Validate the (internal) Resource Type */ + + if (resource->type > ACPI_RESOURCE_TYPE_MAX) { + ACPI_ERROR((AE_INFO, + "Invalid descriptor type (%X) in resource list", + resource->type)); + return_ACPI_STATUS(AE_BAD_DATA); + } + + /* Perform the conversion */ + + status = acpi_rs_convert_resource_to_aml(resource, ACPI_CAST_PTR(union + aml_resource, + aml), + acpi_gbl_set_resource_dispatch + [resource->type]); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Could not convert resource (type %X) to AML", + resource->type)); + return_ACPI_STATUS(status); + } + + /* Perform final sanity check on the new AML resource descriptor */ + + status = + acpi_ut_validate_resource(ACPI_CAST_PTR + (union aml_resource, aml), NULL); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Check for end-of-list, normal exit */ + + if (resource->type == ACPI_RESOURCE_TYPE_END_TAG) { + + /* An End Tag indicates the end of the input Resource Template */ + + return_ACPI_STATUS(AE_OK); + } + + /* + * Extract the total length of the new descriptor and set the + * Aml to point to the next (output) resource descriptor + */ + aml += acpi_ut_get_descriptor_length(aml); + + /* Point to the next input resource descriptor */ + + resource = + ACPI_ADD_PTR(struct acpi_resource, resource, + resource->length); + } + + /* Completed buffer, but did not find an end_tag resource descriptor */ + + return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG); +} diff --git a/drivers/acpi/acpica/rsmemory.c b/drivers/acpi/acpica/rsmemory.c new file mode 100644 index 000000000000..5fd3746cca54 --- /dev/null +++ b/drivers/acpi/acpica/rsmemory.c @@ -0,0 +1,236 @@ +/******************************************************************************* + * + * Module Name: rsmem24 - Memory resource descriptors + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_RESOURCES +ACPI_MODULE_NAME("rsmemory") + +/******************************************************************************* + * + * acpi_rs_convert_memory24 + * + ******************************************************************************/ +struct acpi_rsconvert_info acpi_rs_convert_memory24[4] = { + {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_MEMORY24, + ACPI_RS_SIZE(struct acpi_resource_memory24), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_memory24)}, + + {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_MEMORY24, + sizeof(struct aml_resource_memory24), + 0}, + + /* Read/Write bit */ + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.memory24.write_protect), + AML_OFFSET(memory24.flags), + 0}, + /* + * These fields are contiguous in both the source and destination: + * Minimum Base Address + * Maximum Base Address + * Address Base Alignment + * Range Length + */ + {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.memory24.minimum), + AML_OFFSET(memory24.minimum), + 4} +}; + +/******************************************************************************* + * + * acpi_rs_convert_memory32 + * + ******************************************************************************/ + +struct acpi_rsconvert_info acpi_rs_convert_memory32[4] = { + {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_MEMORY32, + ACPI_RS_SIZE(struct acpi_resource_memory32), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_memory32)}, + + {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_MEMORY32, + sizeof(struct aml_resource_memory32), + 0}, + + /* Read/Write bit */ + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.memory32.write_protect), + AML_OFFSET(memory32.flags), + 0}, + /* + * These fields are contiguous in both the source and destination: + * Minimum Base Address + * Maximum Base Address + * Address Base Alignment + * Range Length + */ + {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.memory32.minimum), + AML_OFFSET(memory32.minimum), + 4} +}; + +/******************************************************************************* + * + * acpi_rs_convert_fixed_memory32 + * + ******************************************************************************/ + +struct acpi_rsconvert_info acpi_rs_convert_fixed_memory32[4] = { + {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_FIXED_MEMORY32, + ACPI_RS_SIZE(struct acpi_resource_fixed_memory32), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_fixed_memory32)}, + + {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_FIXED_MEMORY32, + sizeof(struct aml_resource_fixed_memory32), + 0}, + + /* Read/Write bit */ + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.fixed_memory32.write_protect), + AML_OFFSET(fixed_memory32.flags), + 0}, + /* + * These fields are contiguous in both the source and destination: + * Base Address + * Range Length + */ + {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.fixed_memory32.address), + AML_OFFSET(fixed_memory32.address), + 2} +}; + +/******************************************************************************* + * + * acpi_rs_get_vendor_small + * + ******************************************************************************/ + +struct acpi_rsconvert_info acpi_rs_get_vendor_small[3] = { + {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_VENDOR, + ACPI_RS_SIZE(struct acpi_resource_vendor), + ACPI_RSC_TABLE_SIZE(acpi_rs_get_vendor_small)}, + + /* Length of the vendor data (byte count) */ + + {ACPI_RSC_COUNT16, ACPI_RS_OFFSET(data.vendor.byte_length), + 0, + sizeof(u8)} + , + + /* Vendor data */ + + {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.vendor.byte_data[0]), + sizeof(struct aml_resource_small_header), + 0} +}; + +/******************************************************************************* + * + * acpi_rs_get_vendor_large + * + ******************************************************************************/ + +struct acpi_rsconvert_info acpi_rs_get_vendor_large[3] = { + {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_VENDOR, + ACPI_RS_SIZE(struct acpi_resource_vendor), + ACPI_RSC_TABLE_SIZE(acpi_rs_get_vendor_large)}, + + /* Length of the vendor data (byte count) */ + + {ACPI_RSC_COUNT16, ACPI_RS_OFFSET(data.vendor.byte_length), + 0, + sizeof(u8)} + , + + /* Vendor data */ + + {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.vendor.byte_data[0]), + sizeof(struct aml_resource_large_header), + 0} +}; + +/******************************************************************************* + * + * acpi_rs_set_vendor + * + ******************************************************************************/ + +struct acpi_rsconvert_info acpi_rs_set_vendor[7] = { + /* Default is a small vendor descriptor */ + + {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_VENDOR_SMALL, + sizeof(struct aml_resource_small_header), + ACPI_RSC_TABLE_SIZE(acpi_rs_set_vendor)}, + + /* Get the length and copy the data */ + + {ACPI_RSC_COUNT16, ACPI_RS_OFFSET(data.vendor.byte_length), + 0, + 0}, + + {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.vendor.byte_data[0]), + sizeof(struct aml_resource_small_header), + 0}, + + /* + * All done if the Vendor byte length is 7 or less, meaning that it will + * fit within a small descriptor + */ + {ACPI_RSC_EXIT_LE, 0, 0, 7}, + + /* Must create a large vendor descriptor */ + + {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_VENDOR_LARGE, + sizeof(struct aml_resource_large_header), + 0}, + + {ACPI_RSC_COUNT16, ACPI_RS_OFFSET(data.vendor.byte_length), + 0, + 0}, + + {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.vendor.byte_data[0]), + sizeof(struct aml_resource_large_header), + 0} +}; diff --git a/drivers/acpi/acpica/rsmisc.c b/drivers/acpi/acpica/rsmisc.c new file mode 100644 index 000000000000..2cd6e8cfaba1 --- /dev/null +++ b/drivers/acpi/acpica/rsmisc.c @@ -0,0 +1,561 @@ +/******************************************************************************* + * + * Module Name: rsmisc - Miscellaneous resource descriptors + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_RESOURCES +ACPI_MODULE_NAME("rsmisc") +#define INIT_RESOURCE_TYPE(i) i->resource_offset +#define INIT_RESOURCE_LENGTH(i) i->aml_offset +#define INIT_TABLE_LENGTH(i) i->value +#define COMPARE_OPCODE(i) i->resource_offset +#define COMPARE_TARGET(i) i->aml_offset +#define COMPARE_VALUE(i) i->value +/******************************************************************************* + * + * FUNCTION: acpi_rs_convert_aml_to_resource + * + * PARAMETERS: Resource - Pointer to the resource descriptor + * Aml - Where the AML descriptor is returned + * Info - Pointer to appropriate conversion table + * + * RETURN: Status + * + * DESCRIPTION: Convert an external AML resource descriptor to the corresponding + * internal resource descriptor + * + ******************************************************************************/ +acpi_status +acpi_rs_convert_aml_to_resource(struct acpi_resource *resource, + union aml_resource *aml, + struct acpi_rsconvert_info *info) +{ + acpi_rs_length aml_resource_length; + void *source; + void *destination; + char *target; + u8 count; + u8 flags_mode = FALSE; + u16 item_count = 0; + u16 temp16 = 0; + + ACPI_FUNCTION_TRACE(rs_convert_aml_to_resource); + + if (((acpi_size) resource) & 0x3) { + + /* Each internal resource struct is expected to be 32-bit aligned */ + + ACPI_WARNING((AE_INFO, + "Misaligned resource pointer (get): %p Type %2.2X Len %X", + resource, resource->type, resource->length)); + } + + /* Extract the resource Length field (does not include header length) */ + + aml_resource_length = acpi_ut_get_resource_length(aml); + + /* + * First table entry must be ACPI_RSC_INITxxx and must contain the + * table length (# of table entries) + */ + count = INIT_TABLE_LENGTH(info); + + while (count) { + /* + * Source is the external AML byte stream buffer, + * destination is the internal resource descriptor + */ + source = ACPI_ADD_PTR(void, aml, info->aml_offset); + destination = + ACPI_ADD_PTR(void, resource, info->resource_offset); + + switch (info->opcode) { + case ACPI_RSC_INITGET: + /* + * Get the resource type and the initial (minimum) length + */ + ACPI_MEMSET(resource, 0, INIT_RESOURCE_LENGTH(info)); + resource->type = INIT_RESOURCE_TYPE(info); + resource->length = INIT_RESOURCE_LENGTH(info); + break; + + case ACPI_RSC_INITSET: + break; + + case ACPI_RSC_FLAGINIT: + + flags_mode = TRUE; + break; + + case ACPI_RSC_1BITFLAG: + /* + * Mask and shift the flag bit + */ + ACPI_SET8(destination) = (u8) + ((ACPI_GET8(source) >> info->value) & 0x01); + break; + + case ACPI_RSC_2BITFLAG: + /* + * Mask and shift the flag bits + */ + ACPI_SET8(destination) = (u8) + ((ACPI_GET8(source) >> info->value) & 0x03); + break; + + case ACPI_RSC_COUNT: + + item_count = ACPI_GET8(source); + ACPI_SET8(destination) = (u8) item_count; + + resource->length = resource->length + + (info->value * (item_count - 1)); + break; + + case ACPI_RSC_COUNT16: + + item_count = aml_resource_length; + ACPI_SET16(destination) = item_count; + + resource->length = resource->length + + (info->value * (item_count - 1)); + break; + + case ACPI_RSC_LENGTH: + + resource->length = resource->length + info->value; + break; + + case ACPI_RSC_MOVE8: + case ACPI_RSC_MOVE16: + case ACPI_RSC_MOVE32: + case ACPI_RSC_MOVE64: + /* + * Raw data move. Use the Info value field unless item_count has + * been previously initialized via a COUNT opcode + */ + if (info->value) { + item_count = info->value; + } + acpi_rs_move_data(destination, source, item_count, + info->opcode); + break; + + case ACPI_RSC_SET8: + + ACPI_MEMSET(destination, info->aml_offset, info->value); + break; + + case ACPI_RSC_DATA8: + + target = ACPI_ADD_PTR(char, resource, info->value); + ACPI_MEMCPY(destination, source, ACPI_GET16(target)); + break; + + case ACPI_RSC_ADDRESS: + /* + * Common handler for address descriptor flags + */ + if (!acpi_rs_get_address_common(resource, aml)) { + return_ACPI_STATUS + (AE_AML_INVALID_RESOURCE_TYPE); + } + break; + + case ACPI_RSC_SOURCE: + /* + * Optional resource_source (Index and String) + */ + resource->length += + acpi_rs_get_resource_source(aml_resource_length, + info->value, + destination, aml, NULL); + break; + + case ACPI_RSC_SOURCEX: + /* + * Optional resource_source (Index and String). This is the more + * complicated case used by the Interrupt() macro + */ + target = + ACPI_ADD_PTR(char, resource, + info->aml_offset + (item_count * 4)); + + resource->length += + acpi_rs_get_resource_source(aml_resource_length, + (acpi_rs_length) (((item_count - 1) * sizeof(u32)) + info->value), destination, aml, target); + break; + + case ACPI_RSC_BITMASK: + /* + * 8-bit encoded bitmask (DMA macro) + */ + item_count = + acpi_rs_decode_bitmask(ACPI_GET8(source), + destination); + if (item_count) { + resource->length += (item_count - 1); + } + + target = ACPI_ADD_PTR(char, resource, info->value); + ACPI_SET8(target) = (u8) item_count; + break; + + case ACPI_RSC_BITMASK16: + /* + * 16-bit encoded bitmask (IRQ macro) + */ + ACPI_MOVE_16_TO_16(&temp16, source); + + item_count = + acpi_rs_decode_bitmask(temp16, destination); + if (item_count) { + resource->length += (item_count - 1); + } + + target = ACPI_ADD_PTR(char, resource, info->value); + ACPI_SET8(target) = (u8) item_count; + break; + + case ACPI_RSC_EXIT_NE: + /* + * Control - Exit conversion if not equal + */ + switch (info->resource_offset) { + case ACPI_RSC_COMPARE_AML_LENGTH: + if (aml_resource_length != info->value) { + goto exit; + } + break; + + case ACPI_RSC_COMPARE_VALUE: + if (ACPI_GET8(source) != info->value) { + goto exit; + } + break; + + default: + + ACPI_ERROR((AE_INFO, + "Invalid conversion sub-opcode")); + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + break; + + default: + + ACPI_ERROR((AE_INFO, "Invalid conversion opcode")); + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + count--; + info++; + } + + exit: + if (!flags_mode) { + + /* Round the resource struct length up to the next boundary (32 or 64) */ + + resource->length = + (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(resource->length); + } + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_convert_resource_to_aml + * + * PARAMETERS: Resource - Pointer to the resource descriptor + * Aml - Where the AML descriptor is returned + * Info - Pointer to appropriate conversion table + * + * RETURN: Status + * + * DESCRIPTION: Convert an internal resource descriptor to the corresponding + * external AML resource descriptor. + * + ******************************************************************************/ + +acpi_status +acpi_rs_convert_resource_to_aml(struct acpi_resource *resource, + union aml_resource *aml, + struct acpi_rsconvert_info *info) +{ + void *source = NULL; + void *destination; + acpi_rsdesc_size aml_length = 0; + u8 count; + u16 temp16 = 0; + u16 item_count = 0; + + ACPI_FUNCTION_TRACE(rs_convert_resource_to_aml); + + /* + * First table entry must be ACPI_RSC_INITxxx and must contain the + * table length (# of table entries) + */ + count = INIT_TABLE_LENGTH(info); + + while (count) { + /* + * Source is the internal resource descriptor, + * destination is the external AML byte stream buffer + */ + source = ACPI_ADD_PTR(void, resource, info->resource_offset); + destination = ACPI_ADD_PTR(void, aml, info->aml_offset); + + switch (info->opcode) { + case ACPI_RSC_INITSET: + + ACPI_MEMSET(aml, 0, INIT_RESOURCE_LENGTH(info)); + aml_length = INIT_RESOURCE_LENGTH(info); + acpi_rs_set_resource_header(INIT_RESOURCE_TYPE(info), + aml_length, aml); + break; + + case ACPI_RSC_INITGET: + break; + + case ACPI_RSC_FLAGINIT: + /* + * Clear the flag byte + */ + ACPI_SET8(destination) = 0; + break; + + case ACPI_RSC_1BITFLAG: + /* + * Mask and shift the flag bit + */ + ACPI_SET8(destination) |= (u8) + ((ACPI_GET8(source) & 0x01) << info->value); + break; + + case ACPI_RSC_2BITFLAG: + /* + * Mask and shift the flag bits + */ + ACPI_SET8(destination) |= (u8) + ((ACPI_GET8(source) & 0x03) << info->value); + break; + + case ACPI_RSC_COUNT: + + item_count = ACPI_GET8(source); + ACPI_SET8(destination) = (u8) item_count; + + aml_length = + (u16) (aml_length + + (info->value * (item_count - 1))); + break; + + case ACPI_RSC_COUNT16: + + item_count = ACPI_GET16(source); + aml_length = (u16) (aml_length + item_count); + acpi_rs_set_resource_length(aml_length, aml); + break; + + case ACPI_RSC_LENGTH: + + acpi_rs_set_resource_length(info->value, aml); + break; + + case ACPI_RSC_MOVE8: + case ACPI_RSC_MOVE16: + case ACPI_RSC_MOVE32: + case ACPI_RSC_MOVE64: + + if (info->value) { + item_count = info->value; + } + acpi_rs_move_data(destination, source, item_count, + info->opcode); + break; + + case ACPI_RSC_ADDRESS: + + /* Set the Resource Type, General Flags, and Type-Specific Flags */ + + acpi_rs_set_address_common(aml, resource); + break; + + case ACPI_RSC_SOURCEX: + /* + * Optional resource_source (Index and String) + */ + aml_length = + acpi_rs_set_resource_source(aml, (acpi_rs_length) + aml_length, source); + acpi_rs_set_resource_length(aml_length, aml); + break; + + case ACPI_RSC_SOURCE: + /* + * Optional resource_source (Index and String). This is the more + * complicated case used by the Interrupt() macro + */ + aml_length = + acpi_rs_set_resource_source(aml, info->value, + source); + acpi_rs_set_resource_length(aml_length, aml); + break; + + case ACPI_RSC_BITMASK: + /* + * 8-bit encoded bitmask (DMA macro) + */ + ACPI_SET8(destination) = (u8) + acpi_rs_encode_bitmask(source, + *ACPI_ADD_PTR(u8, resource, + info->value)); + break; + + case ACPI_RSC_BITMASK16: + /* + * 16-bit encoded bitmask (IRQ macro) + */ + temp16 = acpi_rs_encode_bitmask(source, + *ACPI_ADD_PTR(u8, + resource, + info-> + value)); + ACPI_MOVE_16_TO_16(destination, &temp16); + break; + + case ACPI_RSC_EXIT_LE: + /* + * Control - Exit conversion if less than or equal + */ + if (item_count <= info->value) { + goto exit; + } + break; + + case ACPI_RSC_EXIT_NE: + /* + * Control - Exit conversion if not equal + */ + switch (COMPARE_OPCODE(info)) { + case ACPI_RSC_COMPARE_VALUE: + + if (*ACPI_ADD_PTR(u8, resource, + COMPARE_TARGET(info)) != + COMPARE_VALUE(info)) { + goto exit; + } + break; + + default: + + ACPI_ERROR((AE_INFO, + "Invalid conversion sub-opcode")); + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + break; + + case ACPI_RSC_EXIT_EQ: + /* + * Control - Exit conversion if equal + */ + if (*ACPI_ADD_PTR(u8, resource, + COMPARE_TARGET(info)) == + COMPARE_VALUE(info)) { + goto exit; + } + break; + + default: + + ACPI_ERROR((AE_INFO, "Invalid conversion opcode")); + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + count--; + info++; + } + + exit: + return_ACPI_STATUS(AE_OK); +} + +#if 0 +/* Previous resource validations */ + +if (aml->ext_address64.revision_iD != AML_RESOURCE_EXTENDED_ADDRESS_REVISION) { + return_ACPI_STATUS(AE_SUPPORT); +} + +if (resource->data.start_dpf.performance_robustness >= 3) { + return_ACPI_STATUS(AE_AML_BAD_RESOURCE_VALUE); +} + +if (((aml->irq.flags & 0x09) == 0x00) || ((aml->irq.flags & 0x09) == 0x09)) { + /* + * Only [active_high, edge_sensitive] or [active_low, level_sensitive] + * polarity/trigger interrupts are allowed (ACPI spec, section + * "IRQ Format"), so 0x00 and 0x09 are illegal. + */ + ACPI_ERROR((AE_INFO, + "Invalid interrupt polarity/trigger in resource list, %X", + aml->irq.flags)); + return_ACPI_STATUS(AE_BAD_DATA); +} + +resource->data.extended_irq.interrupt_count = temp8; +if (temp8 < 1) { + + /* Must have at least one IRQ */ + + return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH); +} + +if (resource->data.dma.transfer == 0x03) { + ACPI_ERROR((AE_INFO, "Invalid DMA.Transfer preference (3)")); + return_ACPI_STATUS(AE_BAD_DATA); +} +#endif diff --git a/drivers/acpi/acpica/rsutils.c b/drivers/acpi/acpica/rsutils.c new file mode 100644 index 000000000000..7450105f8548 --- /dev/null +++ b/drivers/acpi/acpica/rsutils.c @@ -0,0 +1,727 @@ +/******************************************************************************* + * + * Module Name: rsutils - Utilities for the resource manager + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include + +#define _COMPONENT ACPI_RESOURCES +ACPI_MODULE_NAME("rsutils") + +/******************************************************************************* + * + * FUNCTION: acpi_rs_decode_bitmask + * + * PARAMETERS: Mask - Bitmask to decode + * List - Where the converted list is returned + * + * RETURN: Count of bits set (length of list) + * + * DESCRIPTION: Convert a bit mask into a list of values + * + ******************************************************************************/ +u8 acpi_rs_decode_bitmask(u16 mask, u8 * list) +{ + u8 i; + u8 bit_count; + + ACPI_FUNCTION_ENTRY(); + + /* Decode the mask bits */ + + for (i = 0, bit_count = 0; mask; i++) { + if (mask & 0x0001) { + list[bit_count] = i; + bit_count++; + } + + mask >>= 1; + } + + return (bit_count); +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_encode_bitmask + * + * PARAMETERS: List - List of values to encode + * Count - Length of list + * + * RETURN: Encoded bitmask + * + * DESCRIPTION: Convert a list of values to an encoded bitmask + * + ******************************************************************************/ + +u16 acpi_rs_encode_bitmask(u8 * list, u8 count) +{ + u32 i; + u16 mask; + + ACPI_FUNCTION_ENTRY(); + + /* Encode the list into a single bitmask */ + + for (i = 0, mask = 0; i < count; i++) { + mask |= (0x1 << list[i]); + } + + return mask; +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_move_data + * + * PARAMETERS: Destination - Pointer to the destination descriptor + * Source - Pointer to the source descriptor + * item_count - How many items to move + * move_type - Byte width + * + * RETURN: None + * + * DESCRIPTION: Move multiple data items from one descriptor to another. Handles + * alignment issues and endian issues if necessary, as configured + * via the ACPI_MOVE_* macros. (This is why a memcpy is not used) + * + ******************************************************************************/ + +void +acpi_rs_move_data(void *destination, void *source, u16 item_count, u8 move_type) +{ + u32 i; + + ACPI_FUNCTION_ENTRY(); + + /* One move per item */ + + for (i = 0; i < item_count; i++) { + switch (move_type) { + /* + * For the 8-bit case, we can perform the move all at once + * since there are no alignment or endian issues + */ + case ACPI_RSC_MOVE8: + ACPI_MEMCPY(destination, source, item_count); + return; + + /* + * 16-, 32-, and 64-bit cases must use the move macros that perform + * endian conversion and/or accomodate hardware that cannot perform + * misaligned memory transfers + */ + case ACPI_RSC_MOVE16: + ACPI_MOVE_16_TO_16(&ACPI_CAST_PTR(u16, destination)[i], + &ACPI_CAST_PTR(u16, source)[i]); + break; + + case ACPI_RSC_MOVE32: + ACPI_MOVE_32_TO_32(&ACPI_CAST_PTR(u32, destination)[i], + &ACPI_CAST_PTR(u32, source)[i]); + break; + + case ACPI_RSC_MOVE64: + ACPI_MOVE_64_TO_64(&ACPI_CAST_PTR(u64, destination)[i], + &ACPI_CAST_PTR(u64, source)[i]); + break; + + default: + return; + } + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_set_resource_length + * + * PARAMETERS: total_length - Length of the AML descriptor, including + * the header and length fields. + * Aml - Pointer to the raw AML descriptor + * + * RETURN: None + * + * DESCRIPTION: Set the resource_length field of an AML + * resource descriptor, both Large and Small descriptors are + * supported automatically. Note: Descriptor Type field must + * be valid. + * + ******************************************************************************/ + +void +acpi_rs_set_resource_length(acpi_rsdesc_size total_length, + union aml_resource *aml) +{ + acpi_rs_length resource_length; + + ACPI_FUNCTION_ENTRY(); + + /* Length is the total descriptor length minus the header length */ + + resource_length = (acpi_rs_length) + (total_length - acpi_ut_get_resource_header_length(aml)); + + /* Length is stored differently for large and small descriptors */ + + if (aml->small_header.descriptor_type & ACPI_RESOURCE_NAME_LARGE) { + + /* Large descriptor -- bytes 1-2 contain the 16-bit length */ + + ACPI_MOVE_16_TO_16(&aml->large_header.resource_length, + &resource_length); + } else { + /* Small descriptor -- bits 2:0 of byte 0 contain the length */ + + aml->small_header.descriptor_type = (u8) + + /* Clear any existing length, preserving descriptor type bits */ + ((aml->small_header. + descriptor_type & ~ACPI_RESOURCE_NAME_SMALL_LENGTH_MASK) + + | resource_length); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_set_resource_header + * + * PARAMETERS: descriptor_type - Byte to be inserted as the type + * total_length - Length of the AML descriptor, including + * the header and length fields. + * Aml - Pointer to the raw AML descriptor + * + * RETURN: None + * + * DESCRIPTION: Set the descriptor_type and resource_length fields of an AML + * resource descriptor, both Large and Small descriptors are + * supported automatically + * + ******************************************************************************/ + +void +acpi_rs_set_resource_header(u8 descriptor_type, + acpi_rsdesc_size total_length, + union aml_resource *aml) +{ + ACPI_FUNCTION_ENTRY(); + + /* Set the Resource Type */ + + aml->small_header.descriptor_type = descriptor_type; + + /* Set the Resource Length */ + + acpi_rs_set_resource_length(total_length, aml); +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_strcpy + * + * PARAMETERS: Destination - Pointer to the destination string + * Source - Pointer to the source string + * + * RETURN: String length, including NULL terminator + * + * DESCRIPTION: Local string copy that returns the string length, saving a + * strcpy followed by a strlen. + * + ******************************************************************************/ + +static u16 acpi_rs_strcpy(char *destination, char *source) +{ + u16 i; + + ACPI_FUNCTION_ENTRY(); + + for (i = 0; source[i]; i++) { + destination[i] = source[i]; + } + + destination[i] = 0; + + /* Return string length including the NULL terminator */ + + return ((u16) (i + 1)); +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_get_resource_source + * + * PARAMETERS: resource_length - Length field of the descriptor + * minimum_length - Minimum length of the descriptor (minus + * any optional fields) + * resource_source - Where the resource_source is returned + * Aml - Pointer to the raw AML descriptor + * string_ptr - (optional) where to store the actual + * resource_source string + * + * RETURN: Length of the string plus NULL terminator, rounded up to native + * word boundary + * + * DESCRIPTION: Copy the optional resource_source data from a raw AML descriptor + * to an internal resource descriptor + * + ******************************************************************************/ + +acpi_rs_length +acpi_rs_get_resource_source(acpi_rs_length resource_length, + acpi_rs_length minimum_length, + struct acpi_resource_source * resource_source, + union aml_resource * aml, char *string_ptr) +{ + acpi_rsdesc_size total_length; + u8 *aml_resource_source; + + ACPI_FUNCTION_ENTRY(); + + total_length = + resource_length + sizeof(struct aml_resource_large_header); + aml_resource_source = ACPI_ADD_PTR(u8, aml, minimum_length); + + /* + * resource_source is present if the length of the descriptor is longer than + * the minimum length. + * + * Note: Some resource descriptors will have an additional null, so + * we add 1 to the minimum length. + */ + if (total_length > (acpi_rsdesc_size) (minimum_length + 1)) { + + /* Get the resource_source_index */ + + resource_source->index = aml_resource_source[0]; + + resource_source->string_ptr = string_ptr; + if (!string_ptr) { + /* + * String destination pointer is not specified; Set the String + * pointer to the end of the current resource_source structure. + */ + resource_source->string_ptr = + ACPI_ADD_PTR(char, resource_source, + sizeof(struct acpi_resource_source)); + } + + /* + * In order for the Resource length to be a multiple of the native + * word, calculate the length of the string (+1 for NULL terminator) + * and expand to the next word multiple. + * + * Zero the entire area of the buffer. + */ + total_length = (u32) + ACPI_STRLEN(ACPI_CAST_PTR(char, &aml_resource_source[1])) + 1; + total_length = (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(total_length); + + ACPI_MEMSET(resource_source->string_ptr, 0, total_length); + + /* Copy the resource_source string to the destination */ + + resource_source->string_length = + acpi_rs_strcpy(resource_source->string_ptr, + ACPI_CAST_PTR(char, + &aml_resource_source[1])); + + return ((acpi_rs_length) total_length); + } + + /* resource_source is not present */ + + resource_source->index = 0; + resource_source->string_length = 0; + resource_source->string_ptr = NULL; + return (0); +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_set_resource_source + * + * PARAMETERS: Aml - Pointer to the raw AML descriptor + * minimum_length - Minimum length of the descriptor (minus + * any optional fields) + * resource_source - Internal resource_source + + * + * RETURN: Total length of the AML descriptor + * + * DESCRIPTION: Convert an optional resource_source from internal format to a + * raw AML resource descriptor + * + ******************************************************************************/ + +acpi_rsdesc_size +acpi_rs_set_resource_source(union aml_resource * aml, + acpi_rs_length minimum_length, + struct acpi_resource_source * resource_source) +{ + u8 *aml_resource_source; + acpi_rsdesc_size descriptor_length; + + ACPI_FUNCTION_ENTRY(); + + descriptor_length = minimum_length; + + /* Non-zero string length indicates presence of a resource_source */ + + if (resource_source->string_length) { + + /* Point to the end of the AML descriptor */ + + aml_resource_source = ACPI_ADD_PTR(u8, aml, minimum_length); + + /* Copy the resource_source_index */ + + aml_resource_source[0] = (u8) resource_source->index; + + /* Copy the resource_source string */ + + ACPI_STRCPY(ACPI_CAST_PTR(char, &aml_resource_source[1]), + resource_source->string_ptr); + + /* + * Add the length of the string (+ 1 for null terminator) to the + * final descriptor length + */ + descriptor_length += + ((acpi_rsdesc_size) resource_source->string_length + 1); + } + + /* Return the new total length of the AML descriptor */ + + return (descriptor_length); +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_get_prt_method_data + * + * PARAMETERS: Node - Device node + * ret_buffer - Pointer to a buffer structure for the + * results + * + * RETURN: Status + * + * DESCRIPTION: This function is called to get the _PRT value of an object + * contained in an object specified by the handle passed in + * + * If the function fails an appropriate status will be returned + * and the contents of the callers buffer is undefined. + * + ******************************************************************************/ + +acpi_status +acpi_rs_get_prt_method_data(struct acpi_namespace_node * node, + struct acpi_buffer * ret_buffer) +{ + union acpi_operand_object *obj_desc; + acpi_status status; + + ACPI_FUNCTION_TRACE(rs_get_prt_method_data); + + /* Parameters guaranteed valid by caller */ + + /* Execute the method, no parameters */ + + status = acpi_ut_evaluate_object(node, METHOD_NAME__PRT, + ACPI_BTYPE_PACKAGE, &obj_desc); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * Create a resource linked list from the byte stream buffer that comes + * back from the _CRS method execution. + */ + status = acpi_rs_create_pci_routing_table(obj_desc, ret_buffer); + + /* On exit, we must delete the object returned by evaluate_object */ + + acpi_ut_remove_reference(obj_desc); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_get_crs_method_data + * + * PARAMETERS: Node - Device node + * ret_buffer - Pointer to a buffer structure for the + * results + * + * RETURN: Status + * + * DESCRIPTION: This function is called to get the _CRS value of an object + * contained in an object specified by the handle passed in + * + * If the function fails an appropriate status will be returned + * and the contents of the callers buffer is undefined. + * + ******************************************************************************/ + +acpi_status +acpi_rs_get_crs_method_data(struct acpi_namespace_node *node, + struct acpi_buffer *ret_buffer) +{ + union acpi_operand_object *obj_desc; + acpi_status status; + + ACPI_FUNCTION_TRACE(rs_get_crs_method_data); + + /* Parameters guaranteed valid by caller */ + + /* Execute the method, no parameters */ + + status = acpi_ut_evaluate_object(node, METHOD_NAME__CRS, + ACPI_BTYPE_BUFFER, &obj_desc); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * Make the call to create a resource linked list from the + * byte stream buffer that comes back from the _CRS method + * execution. + */ + status = acpi_rs_create_resource_list(obj_desc, ret_buffer); + + /* On exit, we must delete the object returned by evaluate_object */ + + acpi_ut_remove_reference(obj_desc); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_get_prs_method_data + * + * PARAMETERS: Node - Device node + * ret_buffer - Pointer to a buffer structure for the + * results + * + * RETURN: Status + * + * DESCRIPTION: This function is called to get the _PRS value of an object + * contained in an object specified by the handle passed in + * + * If the function fails an appropriate status will be returned + * and the contents of the callers buffer is undefined. + * + ******************************************************************************/ + +#ifdef ACPI_FUTURE_USAGE +acpi_status +acpi_rs_get_prs_method_data(struct acpi_namespace_node *node, + struct acpi_buffer *ret_buffer) +{ + union acpi_operand_object *obj_desc; + acpi_status status; + + ACPI_FUNCTION_TRACE(rs_get_prs_method_data); + + /* Parameters guaranteed valid by caller */ + + /* Execute the method, no parameters */ + + status = acpi_ut_evaluate_object(node, METHOD_NAME__PRS, + ACPI_BTYPE_BUFFER, &obj_desc); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * Make the call to create a resource linked list from the + * byte stream buffer that comes back from the _CRS method + * execution. + */ + status = acpi_rs_create_resource_list(obj_desc, ret_buffer); + + /* On exit, we must delete the object returned by evaluate_object */ + + acpi_ut_remove_reference(obj_desc); + return_ACPI_STATUS(status); +} +#endif /* ACPI_FUTURE_USAGE */ + +/******************************************************************************* + * + * FUNCTION: acpi_rs_get_method_data + * + * PARAMETERS: Handle - Handle to the containing object + * Path - Path to method, relative to Handle + * ret_buffer - Pointer to a buffer structure for the + * results + * + * RETURN: Status + * + * DESCRIPTION: This function is called to get the _CRS or _PRS value of an + * object contained in an object specified by the handle passed in + * + * If the function fails an appropriate status will be returned + * and the contents of the callers buffer is undefined. + * + ******************************************************************************/ + +acpi_status +acpi_rs_get_method_data(acpi_handle handle, + char *path, struct acpi_buffer *ret_buffer) +{ + union acpi_operand_object *obj_desc; + acpi_status status; + + ACPI_FUNCTION_TRACE(rs_get_method_data); + + /* Parameters guaranteed valid by caller */ + + /* Execute the method, no parameters */ + + status = + acpi_ut_evaluate_object(handle, path, ACPI_BTYPE_BUFFER, &obj_desc); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * Make the call to create a resource linked list from the + * byte stream buffer that comes back from the method + * execution. + */ + status = acpi_rs_create_resource_list(obj_desc, ret_buffer); + + /* On exit, we must delete the object returned by evaluate_object */ + + acpi_ut_remove_reference(obj_desc); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_set_srs_method_data + * + * PARAMETERS: Node - Device node + * in_buffer - Pointer to a buffer structure of the + * parameter + * + * RETURN: Status + * + * DESCRIPTION: This function is called to set the _SRS of an object contained + * in an object specified by the handle passed in + * + * If the function fails an appropriate status will be returned + * and the contents of the callers buffer is undefined. + * + * Note: Parameters guaranteed valid by caller + * + ******************************************************************************/ + +acpi_status +acpi_rs_set_srs_method_data(struct acpi_namespace_node *node, + struct acpi_buffer *in_buffer) +{ + struct acpi_evaluate_info *info; + union acpi_operand_object *args[2]; + acpi_status status; + struct acpi_buffer buffer; + + ACPI_FUNCTION_TRACE(rs_set_srs_method_data); + + /* Allocate and initialize the evaluation information block */ + + info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info)); + if (!info) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + info->prefix_node = node; + info->pathname = METHOD_NAME__SRS; + info->parameters = args; + info->flags = ACPI_IGNORE_RETURN_VALUE; + + /* + * The in_buffer parameter will point to a linked list of + * resource parameters. It needs to be formatted into a + * byte stream to be sent in as an input parameter to _SRS + * + * Convert the linked list into a byte stream + */ + buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; + status = acpi_rs_create_aml_resources(in_buffer->pointer, &buffer); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + /* Create and initialize the method parameter object */ + + args[0] = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER); + if (!args[0]) { + /* + * Must free the buffer allocated above (otherwise it is freed + * later) + */ + ACPI_FREE(buffer.pointer); + status = AE_NO_MEMORY; + goto cleanup; + } + + args[0]->buffer.length = (u32) buffer.length; + args[0]->buffer.pointer = buffer.pointer; + args[0]->common.flags = AOPOBJ_DATA_VALID; + args[1] = NULL; + + /* Execute the method, no return value is expected */ + + status = acpi_ns_evaluate(info); + + /* Clean up and return the status from acpi_ns_evaluate */ + + acpi_ut_remove_reference(args[0]); + + cleanup: + ACPI_FREE(info); + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/rsxface.c b/drivers/acpi/acpica/rsxface.c new file mode 100644 index 000000000000..0a274356b23e --- /dev/null +++ b/drivers/acpi/acpica/rsxface.c @@ -0,0 +1,571 @@ +/******************************************************************************* + * + * Module Name: rsxface - Public interfaces to the resource manager + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include + +#define _COMPONENT ACPI_RESOURCES +ACPI_MODULE_NAME("rsxface") + +/* Local macros for 16,32-bit to 64-bit conversion */ +#define ACPI_COPY_FIELD(out, in, field) ((out)->field = (in)->field) +#define ACPI_COPY_ADDRESS(out, in) \ + ACPI_COPY_FIELD(out, in, resource_type); \ + ACPI_COPY_FIELD(out, in, producer_consumer); \ + ACPI_COPY_FIELD(out, in, decode); \ + ACPI_COPY_FIELD(out, in, min_address_fixed); \ + ACPI_COPY_FIELD(out, in, max_address_fixed); \ + ACPI_COPY_FIELD(out, in, info); \ + ACPI_COPY_FIELD(out, in, granularity); \ + ACPI_COPY_FIELD(out, in, minimum); \ + ACPI_COPY_FIELD(out, in, maximum); \ + ACPI_COPY_FIELD(out, in, translation_offset); \ + ACPI_COPY_FIELD(out, in, address_length); \ + ACPI_COPY_FIELD(out, in, resource_source); +/* Local prototypes */ +static acpi_status +acpi_rs_match_vendor_resource(struct acpi_resource *resource, void *context); + +static acpi_status +acpi_rs_validate_parameters(acpi_handle device_handle, + struct acpi_buffer *buffer, + struct acpi_namespace_node **return_node); + +/******************************************************************************* + * + * FUNCTION: acpi_rs_validate_parameters + * + * PARAMETERS: device_handle - Handle to a device + * Buffer - Pointer to a data buffer + * return_node - Pointer to where the device node is returned + * + * RETURN: Status + * + * DESCRIPTION: Common parameter validation for resource interfaces + * + ******************************************************************************/ + +static acpi_status +acpi_rs_validate_parameters(acpi_handle device_handle, + struct acpi_buffer *buffer, + struct acpi_namespace_node **return_node) +{ + acpi_status status; + struct acpi_namespace_node *node; + + ACPI_FUNCTION_TRACE(rs_validate_parameters); + + /* + * Must have a valid handle to an ACPI device + */ + if (!device_handle) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + node = acpi_ns_map_handle_to_node(device_handle); + if (!node) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + if (node->type != ACPI_TYPE_DEVICE) { + return_ACPI_STATUS(AE_TYPE); + } + + /* + * Validate the user buffer object + * + * if there is a non-zero buffer length we also need a valid pointer in + * the buffer. If it's a zero buffer length, we'll be returning the + * needed buffer size (later), so keep going. + */ + status = acpi_ut_validate_buffer(buffer); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + *return_node = node; + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_get_irq_routing_table + * + * PARAMETERS: device_handle - Handle to the Bus device we are querying + * ret_buffer - Pointer to a buffer to receive the + * current resources for the device + * + * RETURN: Status + * + * DESCRIPTION: This function is called to get the IRQ routing table for a + * specific bus. The caller must first acquire a handle for the + * desired bus. The routine table is placed in the buffer pointed + * to by the ret_buffer variable parameter. + * + * If the function fails an appropriate status will be returned + * and the value of ret_buffer is undefined. + * + * This function attempts to execute the _PRT method contained in + * the object indicated by the passed device_handle. + * + ******************************************************************************/ + +acpi_status +acpi_get_irq_routing_table(acpi_handle device_handle, + struct acpi_buffer *ret_buffer) +{ + acpi_status status; + struct acpi_namespace_node *node; + + ACPI_FUNCTION_TRACE(acpi_get_irq_routing_table); + + /* Validate parameters then dispatch to internal routine */ + + status = acpi_rs_validate_parameters(device_handle, ret_buffer, &node); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + status = acpi_rs_get_prt_method_data(node, ret_buffer); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_get_irq_routing_table) + +/******************************************************************************* + * + * FUNCTION: acpi_get_current_resources + * + * PARAMETERS: device_handle - Handle to the device object for the + * device we are querying + * ret_buffer - Pointer to a buffer to receive the + * current resources for the device + * + * RETURN: Status + * + * DESCRIPTION: This function is called to get the current resources for a + * specific device. The caller must first acquire a handle for + * the desired device. The resource data is placed in the buffer + * pointed to by the ret_buffer variable parameter. + * + * If the function fails an appropriate status will be returned + * and the value of ret_buffer is undefined. + * + * This function attempts to execute the _CRS method contained in + * the object indicated by the passed device_handle. + * + ******************************************************************************/ +acpi_status +acpi_get_current_resources(acpi_handle device_handle, + struct acpi_buffer *ret_buffer) +{ + acpi_status status; + struct acpi_namespace_node *node; + + ACPI_FUNCTION_TRACE(acpi_get_current_resources); + + /* Validate parameters then dispatch to internal routine */ + + status = acpi_rs_validate_parameters(device_handle, ret_buffer, &node); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + status = acpi_rs_get_crs_method_data(node, ret_buffer); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_get_current_resources) +#ifdef ACPI_FUTURE_USAGE +/******************************************************************************* + * + * FUNCTION: acpi_get_possible_resources + * + * PARAMETERS: device_handle - Handle to the device object for the + * device we are querying + * ret_buffer - Pointer to a buffer to receive the + * resources for the device + * + * RETURN: Status + * + * DESCRIPTION: This function is called to get a list of the possible resources + * for a specific device. The caller must first acquire a handle + * for the desired device. The resource data is placed in the + * buffer pointed to by the ret_buffer variable. + * + * If the function fails an appropriate status will be returned + * and the value of ret_buffer is undefined. + * + ******************************************************************************/ +acpi_status +acpi_get_possible_resources(acpi_handle device_handle, + struct acpi_buffer *ret_buffer) +{ + acpi_status status; + struct acpi_namespace_node *node; + + ACPI_FUNCTION_TRACE(acpi_get_possible_resources); + + /* Validate parameters then dispatch to internal routine */ + + status = acpi_rs_validate_parameters(device_handle, ret_buffer, &node); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + status = acpi_rs_get_prs_method_data(node, ret_buffer); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_get_possible_resources) +#endif /* ACPI_FUTURE_USAGE */ +/******************************************************************************* + * + * FUNCTION: acpi_set_current_resources + * + * PARAMETERS: device_handle - Handle to the device object for the + * device we are setting resources + * in_buffer - Pointer to a buffer containing the + * resources to be set for the device + * + * RETURN: Status + * + * DESCRIPTION: This function is called to set the current resources for a + * specific device. The caller must first acquire a handle for + * the desired device. The resource data is passed to the routine + * the buffer pointed to by the in_buffer variable. + * + ******************************************************************************/ +acpi_status +acpi_set_current_resources(acpi_handle device_handle, + struct acpi_buffer *in_buffer) +{ + acpi_status status; + struct acpi_namespace_node *node; + + ACPI_FUNCTION_TRACE(acpi_set_current_resources); + + /* Validate the buffer, don't allow zero length */ + + if ((!in_buffer) || (!in_buffer->pointer) || (!in_buffer->length)) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* Validate parameters then dispatch to internal routine */ + + status = acpi_rs_validate_parameters(device_handle, in_buffer, &node); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + status = acpi_rs_set_srs_method_data(node, in_buffer); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_set_current_resources) + +/****************************************************************************** + * + * FUNCTION: acpi_resource_to_address64 + * + * PARAMETERS: Resource - Pointer to a resource + * Out - Pointer to the users's return buffer + * (a struct acpi_resource_address64) + * + * RETURN: Status + * + * DESCRIPTION: If the resource is an address16, address32, or address64, + * copy it to the address64 return buffer. This saves the + * caller from having to duplicate code for different-sized + * addresses. + * + ******************************************************************************/ +acpi_status +acpi_resource_to_address64(struct acpi_resource *resource, + struct acpi_resource_address64 *out) +{ + struct acpi_resource_address16 *address16; + struct acpi_resource_address32 *address32; + + if (!resource || !out) { + return (AE_BAD_PARAMETER); + } + + /* Convert 16 or 32 address descriptor to 64 */ + + switch (resource->type) { + case ACPI_RESOURCE_TYPE_ADDRESS16: + + address16 = (struct acpi_resource_address16 *)&resource->data; + ACPI_COPY_ADDRESS(out, address16); + break; + + case ACPI_RESOURCE_TYPE_ADDRESS32: + + address32 = (struct acpi_resource_address32 *)&resource->data; + ACPI_COPY_ADDRESS(out, address32); + break; + + case ACPI_RESOURCE_TYPE_ADDRESS64: + + /* Simple copy for 64 bit source */ + + ACPI_MEMCPY(out, &resource->data, + sizeof(struct acpi_resource_address64)); + break; + + default: + return (AE_BAD_PARAMETER); + } + + return (AE_OK); +} + +ACPI_EXPORT_SYMBOL(acpi_resource_to_address64) + +/******************************************************************************* + * + * FUNCTION: acpi_get_vendor_resource + * + * PARAMETERS: device_handle - Handle for the parent device object + * Name - Method name for the parent resource + * (METHOD_NAME__CRS or METHOD_NAME__PRS) + * Uuid - Pointer to the UUID to be matched. + * includes both subtype and 16-byte UUID + * ret_buffer - Where the vendor resource is returned + * + * RETURN: Status + * + * DESCRIPTION: Walk a resource template for the specified evice to find a + * vendor-defined resource that matches the supplied UUID and + * UUID subtype. Returns a struct acpi_resource of type Vendor. + * + ******************************************************************************/ +acpi_status +acpi_get_vendor_resource(acpi_handle device_handle, + char *name, + struct acpi_vendor_uuid * uuid, + struct acpi_buffer * ret_buffer) +{ + struct acpi_vendor_walk_info info; + acpi_status status; + + /* Other parameters are validated by acpi_walk_resources */ + + if (!uuid || !ret_buffer) { + return (AE_BAD_PARAMETER); + } + + info.uuid = uuid; + info.buffer = ret_buffer; + info.status = AE_NOT_EXIST; + + /* Walk the _CRS or _PRS resource list for this device */ + + status = + acpi_walk_resources(device_handle, name, + acpi_rs_match_vendor_resource, &info); + if (ACPI_FAILURE(status)) { + return (status); + } + + return (info.status); +} + +ACPI_EXPORT_SYMBOL(acpi_get_vendor_resource) + +/******************************************************************************* + * + * FUNCTION: acpi_rs_match_vendor_resource + * + * PARAMETERS: acpi_walk_resource_callback + * + * RETURN: Status + * + * DESCRIPTION: Match a vendor resource via the ACPI 3.0 UUID + * + ******************************************************************************/ +static acpi_status +acpi_rs_match_vendor_resource(struct acpi_resource *resource, void *context) +{ + struct acpi_vendor_walk_info *info = context; + struct acpi_resource_vendor_typed *vendor; + struct acpi_buffer *buffer; + acpi_status status; + + /* Ignore all descriptors except Vendor */ + + if (resource->type != ACPI_RESOURCE_TYPE_VENDOR) { + return (AE_OK); + } + + vendor = &resource->data.vendor_typed; + + /* + * For a valid match, these conditions must hold: + * + * 1) Length of descriptor data must be at least as long as a UUID struct + * 2) The UUID subtypes must match + * 3) The UUID data must match + */ + if ((vendor->byte_length < (ACPI_UUID_LENGTH + 1)) || + (vendor->uuid_subtype != info->uuid->subtype) || + (ACPI_MEMCMP(vendor->uuid, info->uuid->data, ACPI_UUID_LENGTH))) { + return (AE_OK); + } + + /* Validate/Allocate/Clear caller buffer */ + + buffer = info->buffer; + status = acpi_ut_initialize_buffer(buffer, resource->length); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* Found the correct resource, copy and return it */ + + ACPI_MEMCPY(buffer->pointer, resource, resource->length); + buffer->length = resource->length; + + /* Found the desired descriptor, terminate resource walk */ + + info->status = AE_OK; + return (AE_CTRL_TERMINATE); +} + +/******************************************************************************* + * + * FUNCTION: acpi_walk_resources + * + * PARAMETERS: device_handle - Handle to the device object for the + * device we are querying + * Name - Method name of the resources we want + * (METHOD_NAME__CRS or METHOD_NAME__PRS) + * user_function - Called for each resource + * Context - Passed to user_function + * + * RETURN: Status + * + * DESCRIPTION: Retrieves the current or possible resource list for the + * specified device. The user_function is called once for + * each resource in the list. + * + ******************************************************************************/ +acpi_status +acpi_walk_resources(acpi_handle device_handle, + char *name, + acpi_walk_resource_callback user_function, void *context) +{ + acpi_status status; + struct acpi_buffer buffer; + struct acpi_resource *resource; + struct acpi_resource *resource_end; + + ACPI_FUNCTION_TRACE(acpi_walk_resources); + + /* Parameter validation */ + + if (!device_handle || !user_function || !name || + (!ACPI_COMPARE_NAME(name, METHOD_NAME__CRS) && + !ACPI_COMPARE_NAME(name, METHOD_NAME__PRS))) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* Get the _CRS or _PRS resource list */ + + buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; + status = acpi_rs_get_method_data(device_handle, name, &buffer); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Buffer now contains the resource list */ + + resource = ACPI_CAST_PTR(struct acpi_resource, buffer.pointer); + resource_end = + ACPI_ADD_PTR(struct acpi_resource, buffer.pointer, buffer.length); + + /* Walk the resource list until the end_tag is found (or buffer end) */ + + while (resource < resource_end) { + + /* Sanity check the resource */ + + if (resource->type > ACPI_RESOURCE_TYPE_MAX) { + status = AE_AML_INVALID_RESOURCE_TYPE; + break; + } + + /* Invoke the user function, abort on any error returned */ + + status = user_function(resource, context); + if (ACPI_FAILURE(status)) { + if (status == AE_CTRL_TERMINATE) { + + /* This is an OK termination by the user function */ + + status = AE_OK; + } + break; + } + + /* end_tag indicates end-of-list */ + + if (resource->type == ACPI_RESOURCE_TYPE_END_TAG) { + break; + } + + /* Get the next resource descriptor */ + + resource = + ACPI_ADD_PTR(struct acpi_resource, resource, + resource->length); + } + + ACPI_FREE(buffer.pointer); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_walk_resources) diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c new file mode 100644 index 000000000000..87f22e68c6d6 --- /dev/null +++ b/drivers/acpi/acpica/tbfadt.c @@ -0,0 +1,610 @@ +/****************************************************************************** + * + * Module Name: tbfadt - FADT table utilities + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_TABLES +ACPI_MODULE_NAME("tbfadt") + +/* Local prototypes */ +static inline void +acpi_tb_init_generic_address(struct acpi_generic_address *generic_address, + u8 space_id, u8 byte_width, u64 address); + +static void acpi_tb_convert_fadt(void); + +static void acpi_tb_validate_fadt(void); + +/* Table for conversion of FADT to common internal format and FADT validation */ + +typedef struct acpi_fadt_info { + char *name; + u8 address64; + u8 address32; + u8 length; + u8 default_length; + u8 type; + +} acpi_fadt_info; + +#define ACPI_FADT_REQUIRED 1 +#define ACPI_FADT_SEPARATE_LENGTH 2 + +static struct acpi_fadt_info fadt_info_table[] = { + {"Pm1aEventBlock", + ACPI_FADT_OFFSET(xpm1a_event_block), + ACPI_FADT_OFFSET(pm1a_event_block), + ACPI_FADT_OFFSET(pm1_event_length), + ACPI_PM1_REGISTER_WIDTH * 2, /* Enable + Status register */ + ACPI_FADT_REQUIRED}, + + {"Pm1bEventBlock", + ACPI_FADT_OFFSET(xpm1b_event_block), + ACPI_FADT_OFFSET(pm1b_event_block), + ACPI_FADT_OFFSET(pm1_event_length), + ACPI_PM1_REGISTER_WIDTH * 2, /* Enable + Status register */ + 0}, + + {"Pm1aControlBlock", + ACPI_FADT_OFFSET(xpm1a_control_block), + ACPI_FADT_OFFSET(pm1a_control_block), + ACPI_FADT_OFFSET(pm1_control_length), + ACPI_PM1_REGISTER_WIDTH, + ACPI_FADT_REQUIRED}, + + {"Pm1bControlBlock", + ACPI_FADT_OFFSET(xpm1b_control_block), + ACPI_FADT_OFFSET(pm1b_control_block), + ACPI_FADT_OFFSET(pm1_control_length), + ACPI_PM1_REGISTER_WIDTH, + 0}, + + {"Pm2ControlBlock", + ACPI_FADT_OFFSET(xpm2_control_block), + ACPI_FADT_OFFSET(pm2_control_block), + ACPI_FADT_OFFSET(pm2_control_length), + ACPI_PM2_REGISTER_WIDTH, + ACPI_FADT_SEPARATE_LENGTH}, + + {"PmTimerBlock", + ACPI_FADT_OFFSET(xpm_timer_block), + ACPI_FADT_OFFSET(pm_timer_block), + ACPI_FADT_OFFSET(pm_timer_length), + ACPI_PM_TIMER_WIDTH, + ACPI_FADT_REQUIRED}, + + {"Gpe0Block", + ACPI_FADT_OFFSET(xgpe0_block), + ACPI_FADT_OFFSET(gpe0_block), + ACPI_FADT_OFFSET(gpe0_block_length), + 0, + ACPI_FADT_SEPARATE_LENGTH}, + + {"Gpe1Block", + ACPI_FADT_OFFSET(xgpe1_block), + ACPI_FADT_OFFSET(gpe1_block), + ACPI_FADT_OFFSET(gpe1_block_length), + 0, + ACPI_FADT_SEPARATE_LENGTH} +}; + +#define ACPI_FADT_INFO_ENTRIES (sizeof (fadt_info_table) / sizeof (struct acpi_fadt_info)) + +/******************************************************************************* + * + * FUNCTION: acpi_tb_init_generic_address + * + * PARAMETERS: generic_address - GAS struct to be initialized + * byte_width - Width of this register + * Address - Address of the register + * + * RETURN: None + * + * DESCRIPTION: Initialize a Generic Address Structure (GAS) + * See the ACPI specification for a full description and + * definition of this structure. + * + ******************************************************************************/ + +static inline void +acpi_tb_init_generic_address(struct acpi_generic_address *generic_address, + u8 space_id, u8 byte_width, u64 address) +{ + + /* + * The 64-bit Address field is non-aligned in the byte packed + * GAS struct. + */ + ACPI_MOVE_64_TO_64(&generic_address->address, &address); + + /* All other fields are byte-wide */ + + generic_address->space_id = space_id; + generic_address->bit_width = (u8)ACPI_MUL_8(byte_width); + generic_address->bit_offset = 0; + generic_address->access_width = 0; /* Access width ANY */ +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_parse_fadt + * + * PARAMETERS: table_index - Index for the FADT + * Flags - Flags + * + * RETURN: None + * + * DESCRIPTION: Initialize the FADT, DSDT and FACS tables + * (FADT contains the addresses of the DSDT and FACS) + * + ******************************************************************************/ + +void acpi_tb_parse_fadt(u32 table_index, u8 flags) +{ + u32 length; + struct acpi_table_header *table; + + /* + * The FADT has multiple versions with different lengths, + * and it contains pointers to both the DSDT and FACS tables. + * + * Get a local copy of the FADT and convert it to a common format + * Map entire FADT, assumed to be smaller than one page. + */ + length = acpi_gbl_root_table_list.tables[table_index].length; + + table = + acpi_os_map_memory(acpi_gbl_root_table_list.tables[table_index]. + address, length); + if (!table) { + return; + } + + /* + * Validate the FADT checksum before we copy the table. Ignore + * checksum error as we want to try to get the DSDT and FACS. + */ + (void)acpi_tb_verify_checksum(table, length); + + /* Obtain a local copy of the FADT in common ACPI 2.0+ format */ + + acpi_tb_create_local_fadt(table, length); + + /* All done with the real FADT, unmap it */ + + acpi_os_unmap_memory(table, length); + + /* Obtain the DSDT and FACS tables via their addresses within the FADT */ + + acpi_tb_install_table((acpi_physical_address) acpi_gbl_FADT.Xdsdt, + flags, ACPI_SIG_DSDT, ACPI_TABLE_INDEX_DSDT); + + acpi_tb_install_table((acpi_physical_address) acpi_gbl_FADT.Xfacs, + flags, ACPI_SIG_FACS, ACPI_TABLE_INDEX_FACS); +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_create_local_fadt + * + * PARAMETERS: Table - Pointer to BIOS FADT + * Length - Length of the table + * + * RETURN: None + * + * DESCRIPTION: Get a local copy of the FADT and convert it to a common format. + * Performs validation on some important FADT fields. + * + * NOTE: We create a local copy of the FADT regardless of the version. + * + ******************************************************************************/ + +void acpi_tb_create_local_fadt(struct acpi_table_header *table, u32 length) +{ + + /* + * Check if the FADT is larger than the largest table that we expect + * (the ACPI 2.0/3.0 version). If so, truncate the table, and issue + * a warning. + */ + if (length > sizeof(struct acpi_table_fadt)) { + ACPI_WARNING((AE_INFO, + "FADT (revision %u) is longer than ACPI 2.0 version, " + "truncating length 0x%X to 0x%zX", + table->revision, (unsigned)length, + sizeof(struct acpi_table_fadt))); + } + + /* Clear the entire local FADT */ + + ACPI_MEMSET(&acpi_gbl_FADT, 0, sizeof(struct acpi_table_fadt)); + + /* Copy the original FADT, up to sizeof (struct acpi_table_fadt) */ + + ACPI_MEMCPY(&acpi_gbl_FADT, table, + ACPI_MIN(length, sizeof(struct acpi_table_fadt))); + + /* + * 1) Convert the local copy of the FADT to the common internal format + * 2) Validate some of the important values within the FADT + */ + acpi_tb_convert_fadt(); +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_convert_fadt + * + * PARAMETERS: None, uses acpi_gbl_FADT + * + * RETURN: None + * + * DESCRIPTION: Converts all versions of the FADT to a common internal format. + * Expand all 32-bit addresses to 64-bit. + * + * NOTE: acpi_gbl_FADT must be of size (struct acpi_table_fadt), + * and must contain a copy of the actual FADT. + * + * ACPICA will use the "X" fields of the FADT for all addresses. + * + * "X" fields are optional extensions to the original V1.0 fields. Even if + * they are present in the structure, they can be optionally not used by + * setting them to zero. Therefore, we must selectively expand V1.0 fields + * if the corresponding X field is zero. + * + * For ACPI 1.0 FADTs, all address fields are expanded to the corresponding + * "X" fields. + * + * For ACPI 2.0 FADTs, any "X" fields that are NULL are filled in by + * expanding the corresponding ACPI 1.0 field. + * + ******************************************************************************/ + +static void acpi_tb_convert_fadt(void) +{ + u8 pm1_register_bit_width; + u8 pm1_register_byte_width; + struct acpi_generic_address *target64; + u32 i; + + /* Update the local FADT table header length */ + + acpi_gbl_FADT.header.length = sizeof(struct acpi_table_fadt); + + /* + * Expand the 32-bit FACS and DSDT addresses to 64-bit as necessary. + * Later code will always use the X 64-bit field. Also, check for an + * address mismatch between the 32-bit and 64-bit address fields + * (FIRMWARE_CTRL/X_FIRMWARE_CTRL, DSDT/X_DSDT) which would indicate + * the presence of two FACS or two DSDT tables. + */ + if (!acpi_gbl_FADT.Xfacs) { + acpi_gbl_FADT.Xfacs = (u64) acpi_gbl_FADT.facs; + } else if (acpi_gbl_FADT.facs && + (acpi_gbl_FADT.Xfacs != (u64) acpi_gbl_FADT.facs)) { + ACPI_WARNING((AE_INFO, + "32/64 FACS address mismatch in FADT - two FACS tables!")); + } + + if (!acpi_gbl_FADT.Xdsdt) { + acpi_gbl_FADT.Xdsdt = (u64) acpi_gbl_FADT.dsdt; + } else if (acpi_gbl_FADT.dsdt && + (acpi_gbl_FADT.Xdsdt != (u64) acpi_gbl_FADT.dsdt)) { + ACPI_WARNING((AE_INFO, + "32/64 DSDT address mismatch in FADT - two DSDT tables!")); + } + + /* + * For ACPI 1.0 FADTs (revision 1 or 2), ensure that reserved fields which + * should be zero are indeed zero. This will workaround BIOSs that + * inadvertently place values in these fields. + * + * The ACPI 1.0 reserved fields that will be zeroed are the bytes located at + * offset 45, 55, 95, and the word located at offset 109, 110. + */ + if (acpi_gbl_FADT.header.revision < FADT2_REVISION_ID) { + acpi_gbl_FADT.preferred_profile = 0; + acpi_gbl_FADT.pstate_control = 0; + acpi_gbl_FADT.cst_control = 0; + acpi_gbl_FADT.boot_flags = 0; + } + + /* + * Expand the ACPI 1.0 32-bit addresses to the ACPI 2.0 64-bit "X" + * generic address structures as necessary. Later code will always use + * the 64-bit address structures. + */ + for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) { + target64 = + ACPI_ADD_PTR(struct acpi_generic_address, &acpi_gbl_FADT, + fadt_info_table[i].address64); + + /* Expand only if the 64-bit X target is null */ + + if (!target64->address) { + + /* The space_id is always I/O for the 32-bit legacy address fields */ + + acpi_tb_init_generic_address(target64, + ACPI_ADR_SPACE_SYSTEM_IO, + *ACPI_ADD_PTR(u8, + &acpi_gbl_FADT, + fadt_info_table + [i].length), + (u64) * ACPI_ADD_PTR(u32, + &acpi_gbl_FADT, + fadt_info_table + [i]. + address32)); + } + } + + /* Validate FADT values now, before we make any changes */ + + acpi_tb_validate_fadt(); + + /* + * Optionally check all register lengths against the default values and + * update them if they are incorrect. + */ + if (acpi_gbl_use_default_register_widths) { + for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) { + target64 = + ACPI_ADD_PTR(struct acpi_generic_address, + &acpi_gbl_FADT, + fadt_info_table[i].address64); + + /* + * If a valid register (Address != 0) and the (default_length > 0) + * (Not a GPE register), then check the width against the default. + */ + if ((target64->address) && + (fadt_info_table[i].default_length > 0) && + (fadt_info_table[i].default_length != + target64->bit_width)) { + ACPI_WARNING((AE_INFO, + "Invalid length for %s: %d, using default %d", + fadt_info_table[i].name, + target64->bit_width, + fadt_info_table[i]. + default_length)); + + /* Incorrect size, set width to the default */ + + target64->bit_width = + fadt_info_table[i].default_length; + } + } + } + + /* + * Get the length of the individual PM1 registers (enable and status). + * Each register is defined to be (event block length / 2). + */ + pm1_register_bit_width = + (u8)ACPI_DIV_2(acpi_gbl_FADT.xpm1a_event_block.bit_width); + pm1_register_byte_width = (u8)ACPI_DIV_8(pm1_register_bit_width); + + /* + * Adjust the lengths of the PM1 Event Blocks so that they can be used to + * access the PM1 status register(s). Use (width / 2) + */ + acpi_gbl_FADT.xpm1a_event_block.bit_width = pm1_register_bit_width; + acpi_gbl_FADT.xpm1b_event_block.bit_width = pm1_register_bit_width; + + /* + * Calculate separate GAS structs for the PM1 Enable registers. + * These addresses do not appear (directly) in the FADT, so it is + * useful to calculate them once, here. + * + * The PM event blocks are split into two register blocks, first is the + * PM Status Register block, followed immediately by the PM Enable + * Register block. Each is of length (xpm1x_event_block.bit_width/2). + * + * On various systems the v2 fields (and particularly the bit widths) + * cannot be relied upon, though. Hence resort to using the v1 length + * here (and warn about the inconsistency). + */ + if (acpi_gbl_FADT.xpm1a_event_block.bit_width + != acpi_gbl_FADT.pm1_event_length * 8) + printk(KERN_WARNING "FADT: " + "X_PM1a_EVT_BLK.bit_width (%u) does not match" + " PM1_EVT_LEN (%u)\n", + acpi_gbl_FADT.xpm1a_event_block.bit_width, + acpi_gbl_FADT.pm1_event_length); + + /* The PM1A register block is required */ + + acpi_tb_init_generic_address(&acpi_gbl_xpm1a_enable, + acpi_gbl_FADT.xpm1a_event_block.space_id, + pm1_register_byte_width, + (acpi_gbl_FADT.xpm1a_event_block.address + + pm1_register_byte_width)); + /* Don't forget to copy space_id of the GAS */ + acpi_gbl_xpm1a_enable.space_id = + acpi_gbl_FADT.xpm1a_event_block.space_id; + + /* The PM1B register block is optional, ignore if not present */ + + if (acpi_gbl_FADT.xpm1b_event_block.address) { + if (acpi_gbl_FADT.xpm1b_event_block.bit_width + != acpi_gbl_FADT.pm1_event_length * 8) + printk(KERN_WARNING "FADT: " + "X_PM1b_EVT_BLK.bit_width (%u) does not match" + " PM1_EVT_LEN (%u)\n", + acpi_gbl_FADT.xpm1b_event_block.bit_width, + acpi_gbl_FADT.pm1_event_length); + acpi_tb_init_generic_address(&acpi_gbl_xpm1b_enable, + acpi_gbl_FADT.xpm1b_event_block.space_id, + pm1_register_byte_width, + (acpi_gbl_FADT.xpm1b_event_block. + address + pm1_register_byte_width)); + /* Don't forget to copy space_id of the GAS */ + acpi_gbl_xpm1b_enable.space_id = + acpi_gbl_FADT.xpm1b_event_block.space_id; + + } +} + +/****************************************************************************** + * + * FUNCTION: acpi_tb_validate_fadt + * + * PARAMETERS: Table - Pointer to the FADT to be validated + * + * RETURN: None + * + * DESCRIPTION: Validate various important fields within the FADT. If a problem + * is found, issue a message, but no status is returned. + * Used by both the table manager and the disassembler. + * + * Possible additional checks: + * (acpi_gbl_FADT.pm1_event_length >= 4) + * (acpi_gbl_FADT.pm1_control_length >= 2) + * (acpi_gbl_FADT.pm_timer_length >= 4) + * Gpe block lengths must be multiple of 2 + * + ******************************************************************************/ + +static void acpi_tb_validate_fadt(void) +{ + char *name; + u32 *address32; + struct acpi_generic_address *address64; + u8 length; + u32 i; + + /* + * Check for FACS and DSDT address mismatches. An address mismatch between + * the 32-bit and 64-bit address fields (FIRMWARE_CTRL/X_FIRMWARE_CTRL and + * DSDT/X_DSDT) would indicate the presence of two FACS or two DSDT tables. + */ + if (acpi_gbl_FADT.facs && + (acpi_gbl_FADT.Xfacs != (u64) acpi_gbl_FADT.facs)) { + ACPI_WARNING((AE_INFO, + "32/64X FACS address mismatch in FADT - " + "two FACS tables! %8.8X/%8.8X%8.8X", + acpi_gbl_FADT.facs, + ACPI_FORMAT_UINT64(acpi_gbl_FADT.Xfacs))); + } + + if (acpi_gbl_FADT.dsdt && + (acpi_gbl_FADT.Xdsdt != (u64) acpi_gbl_FADT.dsdt)) { + ACPI_WARNING((AE_INFO, + "32/64X DSDT address mismatch in FADT - " + "two DSDT tables! %8.8X/%8.8X%8.8X", + acpi_gbl_FADT.dsdt, + ACPI_FORMAT_UINT64(acpi_gbl_FADT.Xdsdt))); + } + + /* Examine all of the 64-bit extended address fields (X fields) */ + + for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) { + /* + * Generate pointers to the 32-bit and 64-bit addresses, get the + * register length (width), and the register name + */ + address64 = ACPI_ADD_PTR(struct acpi_generic_address, + &acpi_gbl_FADT, + fadt_info_table[i].address64); + address32 = + ACPI_ADD_PTR(u32, &acpi_gbl_FADT, + fadt_info_table[i].address32); + length = + *ACPI_ADD_PTR(u8, &acpi_gbl_FADT, + fadt_info_table[i].length); + name = fadt_info_table[i].name; + + /* + * For each extended field, check for length mismatch between the + * legacy length field and the corresponding 64-bit X length field. + */ + if (address64 && (address64->bit_width != ACPI_MUL_8(length))) { + ACPI_WARNING((AE_INFO, + "32/64X length mismatch in %s: %d/%d", + name, ACPI_MUL_8(length), + address64->bit_width)); + } + + if (fadt_info_table[i].type & ACPI_FADT_REQUIRED) { + /* + * Field is required (Pm1a_event, Pm1a_control, pm_timer). + * Both the address and length must be non-zero. + */ + if (!address64->address || !length) { + ACPI_ERROR((AE_INFO, + "Required field %s has zero address and/or length: %8.8X%8.8X/%X", + name, + ACPI_FORMAT_UINT64(address64-> + address), + length)); + } + } else if (fadt_info_table[i].type & ACPI_FADT_SEPARATE_LENGTH) { + /* + * Field is optional (PM2Control, GPE0, GPE1) AND has its own + * length field. If present, both the address and length must be valid. + */ + if ((address64->address && !length) + || (!address64->address && length)) { + ACPI_WARNING((AE_INFO, + "Optional field %s has zero address or length: %8.8X%8.8X/%X", + name, + ACPI_FORMAT_UINT64(address64-> + address), + length)); + } + } + + /* If both 32- and 64-bit addresses are valid (non-zero), they must match */ + + if (address64->address && *address32 && + (address64->address != (u64) * address32)) { + ACPI_ERROR((AE_INFO, + "32/64X address mismatch in %s: %8.8X/%8.8X%8.8X, using 64X", + name, *address32, + ACPI_FORMAT_UINT64(address64->address))); + } + } +} diff --git a/drivers/acpi/acpica/tbfind.c b/drivers/acpi/acpica/tbfind.c new file mode 100644 index 000000000000..9d20cb6db892 --- /dev/null +++ b/drivers/acpi/acpica/tbfind.c @@ -0,0 +1,140 @@ +/****************************************************************************** + * + * Module Name: tbfind - find table + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_TABLES +ACPI_MODULE_NAME("tbfind") + +/******************************************************************************* + * + * FUNCTION: acpi_tb_find_table + * + * PARAMETERS: Signature - String with ACPI table signature + * oem_id - String with the table OEM ID + * oem_table_id - String with the OEM Table ID + * table_index - Where the table index is returned + * + * RETURN: Status and table index + * + * DESCRIPTION: Find an ACPI table (in the RSDT/XSDT) that matches the + * Signature, OEM ID and OEM Table ID. Returns an index that can + * be used to get the table header or entire table. + * + ******************************************************************************/ +acpi_status +acpi_tb_find_table(char *signature, + char *oem_id, char *oem_table_id, u32 *table_index) +{ + u32 i; + acpi_status status; + struct acpi_table_header header; + + ACPI_FUNCTION_TRACE(tb_find_table); + + /* Normalize the input strings */ + + ACPI_MEMSET(&header, 0, sizeof(struct acpi_table_header)); + ACPI_STRNCPY(header.signature, signature, ACPI_NAME_SIZE); + ACPI_STRNCPY(header.oem_id, oem_id, ACPI_OEM_ID_SIZE); + ACPI_STRNCPY(header.oem_table_id, oem_table_id, ACPI_OEM_TABLE_ID_SIZE); + + /* Search for the table */ + + for (i = 0; i < acpi_gbl_root_table_list.count; ++i) { + if (ACPI_MEMCMP(&(acpi_gbl_root_table_list.tables[i].signature), + header.signature, ACPI_NAME_SIZE)) { + + /* Not the requested table */ + + continue; + } + + /* Table with matching signature has been found */ + + if (!acpi_gbl_root_table_list.tables[i].pointer) { + + /* Table is not currently mapped, map it */ + + status = + acpi_tb_verify_table(&acpi_gbl_root_table_list. + tables[i]); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + if (!acpi_gbl_root_table_list.tables[i].pointer) { + continue; + } + } + + /* Check for table match on all IDs */ + + if (!ACPI_MEMCMP + (acpi_gbl_root_table_list.tables[i].pointer->signature, + header.signature, ACPI_NAME_SIZE) && (!oem_id[0] + || + !ACPI_MEMCMP + (acpi_gbl_root_table_list. + tables[i].pointer-> + oem_id, + header.oem_id, + ACPI_OEM_ID_SIZE)) + && (!oem_table_id[0] + || !ACPI_MEMCMP(acpi_gbl_root_table_list.tables[i]. + pointer->oem_table_id, + header.oem_table_id, + ACPI_OEM_TABLE_ID_SIZE))) { + *table_index = i; + + ACPI_DEBUG_PRINT((ACPI_DB_TABLES, + "Found table [%4.4s]\n", + header.signature)); + return_ACPI_STATUS(AE_OK); + } + } + + return_ACPI_STATUS(AE_NOT_FOUND); +} diff --git a/drivers/acpi/acpica/tbinstal.c b/drivers/acpi/acpica/tbinstal.c new file mode 100644 index 000000000000..019b0d84cbea --- /dev/null +++ b/drivers/acpi/acpica/tbinstal.c @@ -0,0 +1,574 @@ +/****************************************************************************** + * + * Module Name: tbinstal - ACPI table installation and removal + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include + +#define _COMPONENT ACPI_TABLES +ACPI_MODULE_NAME("tbinstal") + +/****************************************************************************** + * + * FUNCTION: acpi_tb_verify_table + * + * PARAMETERS: table_desc - table + * + * RETURN: Status + * + * DESCRIPTION: this function is called to verify and map table + * + *****************************************************************************/ +acpi_status acpi_tb_verify_table(struct acpi_table_desc *table_desc) +{ + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE(tb_verify_table); + + /* Map the table if necessary */ + + if (!table_desc->pointer) { + if ((table_desc->flags & ACPI_TABLE_ORIGIN_MASK) == + ACPI_TABLE_ORIGIN_MAPPED) { + table_desc->pointer = + acpi_os_map_memory(table_desc->address, + table_desc->length); + } + if (!table_desc->pointer) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + } + + /* FACS is the odd table, has no standard ACPI header and no checksum */ + + if (!ACPI_COMPARE_NAME(&table_desc->signature, ACPI_SIG_FACS)) { + + /* Always calculate checksum, ignore bad checksum if requested */ + + status = + acpi_tb_verify_checksum(table_desc->pointer, + table_desc->length); + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_add_table + * + * PARAMETERS: table_desc - Table descriptor + * table_index - Where the table index is returned + * + * RETURN: Status + * + * DESCRIPTION: This function is called to add the ACPI table + * + ******************************************************************************/ + +acpi_status +acpi_tb_add_table(struct acpi_table_desc *table_desc, u32 *table_index) +{ + u32 i; + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE(tb_add_table); + + if (!table_desc->pointer) { + status = acpi_tb_verify_table(table_desc); + if (ACPI_FAILURE(status) || !table_desc->pointer) { + return_ACPI_STATUS(status); + } + } + + /* + * Originally, we checked the table signature for "SSDT" or "PSDT" here. + * Next, we added support for OEMx tables, signature "OEM". + * Valid tables were encountered with a null signature, so we've just + * given up on validating the signature, since it seems to be a waste + * of code. The original code was removed (05/2008). + */ + + (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); + + /* Check if table is already registered */ + + for (i = 0; i < acpi_gbl_root_table_list.count; ++i) { + if (!acpi_gbl_root_table_list.tables[i].pointer) { + status = + acpi_tb_verify_table(&acpi_gbl_root_table_list. + tables[i]); + if (ACPI_FAILURE(status) + || !acpi_gbl_root_table_list.tables[i].pointer) { + continue; + } + } + + /* + * Check for a table match on the entire table length, + * not just the header. + */ + if (table_desc->length != + acpi_gbl_root_table_list.tables[i].length) { + continue; + } + + if (ACPI_MEMCMP(table_desc->pointer, + acpi_gbl_root_table_list.tables[i].pointer, + acpi_gbl_root_table_list.tables[i].length)) { + continue; + } + + /* + * Note: the current mechanism does not unregister a table if it is + * dynamically unloaded. The related namespace entries are deleted, + * but the table remains in the root table list. + * + * The assumption here is that the number of different tables that + * will be loaded is actually small, and there is minimal overhead + * in just keeping the table in case it is needed again. + * + * If this assumption changes in the future (perhaps on large + * machines with many table load/unload operations), tables will + * need to be unregistered when they are unloaded, and slots in the + * root table list should be reused when empty. + */ + + /* + * Table is already registered. + * We can delete the table that was passed as a parameter. + */ + acpi_tb_delete_table(table_desc); + *table_index = i; + + if (acpi_gbl_root_table_list.tables[i]. + flags & ACPI_TABLE_IS_LOADED) { + + /* Table is still loaded, this is an error */ + + status = AE_ALREADY_EXISTS; + goto release; + } else { + /* Table was unloaded, allow it to be reloaded */ + + table_desc->pointer = + acpi_gbl_root_table_list.tables[i].pointer; + table_desc->address = + acpi_gbl_root_table_list.tables[i].address; + status = AE_OK; + goto print_header; + } + } + + /* Add the table to the global root table list */ + + status = acpi_tb_store_table(table_desc->address, table_desc->pointer, + table_desc->length, table_desc->flags, + table_index); + if (ACPI_FAILURE(status)) { + goto release; + } + + print_header: + acpi_tb_print_table_header(table_desc->address, table_desc->pointer); + + release: + (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_resize_root_table_list + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Expand the size of global table array + * + ******************************************************************************/ + +acpi_status acpi_tb_resize_root_table_list(void) +{ + struct acpi_table_desc *tables; + + ACPI_FUNCTION_TRACE(tb_resize_root_table_list); + + /* allow_resize flag is a parameter to acpi_initialize_tables */ + + if (!(acpi_gbl_root_table_list.flags & ACPI_ROOT_ALLOW_RESIZE)) { + ACPI_ERROR((AE_INFO, + "Resize of Root Table Array is not allowed")); + return_ACPI_STATUS(AE_SUPPORT); + } + + /* Increase the Table Array size */ + + tables = ACPI_ALLOCATE_ZEROED(((acpi_size) acpi_gbl_root_table_list. + size + ACPI_ROOT_TABLE_SIZE_INCREMENT) + * sizeof(struct acpi_table_desc)); + if (!tables) { + ACPI_ERROR((AE_INFO, + "Could not allocate new root table array")); + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* Copy and free the previous table array */ + + if (acpi_gbl_root_table_list.tables) { + ACPI_MEMCPY(tables, acpi_gbl_root_table_list.tables, + (acpi_size) acpi_gbl_root_table_list.size * + sizeof(struct acpi_table_desc)); + + if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) { + ACPI_FREE(acpi_gbl_root_table_list.tables); + } + } + + acpi_gbl_root_table_list.tables = tables; + acpi_gbl_root_table_list.size += ACPI_ROOT_TABLE_SIZE_INCREMENT; + acpi_gbl_root_table_list.flags |= (u8) ACPI_ROOT_ORIGIN_ALLOCATED; + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_store_table + * + * PARAMETERS: Address - Table address + * Table - Table header + * Length - Table length + * Flags - flags + * + * RETURN: Status and table index. + * + * DESCRIPTION: Add an ACPI table to the global table list + * + ******************************************************************************/ + +acpi_status +acpi_tb_store_table(acpi_physical_address address, + struct acpi_table_header *table, + u32 length, u8 flags, u32 *table_index) +{ + acpi_status status = AE_OK; + + /* Ensure that there is room for the table in the Root Table List */ + + if (acpi_gbl_root_table_list.count >= acpi_gbl_root_table_list.size) { + status = acpi_tb_resize_root_table_list(); + if (ACPI_FAILURE(status)) { + return (status); + } + } + + /* Initialize added table */ + + acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count]. + address = address; + acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count]. + pointer = table; + acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count].length = + length; + acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count]. + owner_id = 0; + acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count].flags = + flags; + + ACPI_MOVE_32_TO_32(& + (acpi_gbl_root_table_list. + tables[acpi_gbl_root_table_list.count].signature), + table->signature); + + *table_index = acpi_gbl_root_table_list.count; + acpi_gbl_root_table_list.count++; + return (status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_delete_table + * + * PARAMETERS: table_index - Table index + * + * RETURN: None + * + * DESCRIPTION: Delete one internal ACPI table + * + ******************************************************************************/ + +void acpi_tb_delete_table(struct acpi_table_desc *table_desc) +{ + /* Table must be mapped or allocated */ + if (!table_desc->pointer) { + return; + } + switch (table_desc->flags & ACPI_TABLE_ORIGIN_MASK) { + case ACPI_TABLE_ORIGIN_MAPPED: + acpi_os_unmap_memory(table_desc->pointer, table_desc->length); + break; + case ACPI_TABLE_ORIGIN_ALLOCATED: + ACPI_FREE(table_desc->pointer); + break; + default:; + } + + table_desc->pointer = NULL; +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_terminate + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Delete all internal ACPI tables + * + ******************************************************************************/ + +void acpi_tb_terminate(void) +{ + u32 i; + + ACPI_FUNCTION_TRACE(tb_terminate); + + (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); + + /* Delete the individual tables */ + + for (i = 0; i < acpi_gbl_root_table_list.count; ++i) { + acpi_tb_delete_table(&acpi_gbl_root_table_list.tables[i]); + } + + /* + * Delete the root table array if allocated locally. Array cannot be + * mapped, so we don't need to check for that flag. + */ + if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) { + ACPI_FREE(acpi_gbl_root_table_list.tables); + } + + acpi_gbl_root_table_list.tables = NULL; + acpi_gbl_root_table_list.flags = 0; + acpi_gbl_root_table_list.count = 0; + + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "ACPI Tables freed\n")); + (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_delete_namespace_by_owner + * + * PARAMETERS: table_index - Table index + * + * RETURN: None + * + * DESCRIPTION: Delete all namespace objects created when this table was loaded. + * + ******************************************************************************/ + +void acpi_tb_delete_namespace_by_owner(u32 table_index) +{ + acpi_owner_id owner_id; + + (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); + if (table_index < acpi_gbl_root_table_list.count) { + owner_id = + acpi_gbl_root_table_list.tables[table_index].owner_id; + } else { + (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); + return; + } + + (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); + acpi_ns_delete_namespace_by_owner(owner_id); +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_allocate_owner_id + * + * PARAMETERS: table_index - Table index + * + * RETURN: Status + * + * DESCRIPTION: Allocates owner_id in table_desc + * + ******************************************************************************/ + +acpi_status acpi_tb_allocate_owner_id(u32 table_index) +{ + acpi_status status = AE_BAD_PARAMETER; + + ACPI_FUNCTION_TRACE(tb_allocate_owner_id); + + (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); + if (table_index < acpi_gbl_root_table_list.count) { + status = acpi_ut_allocate_owner_id + (&(acpi_gbl_root_table_list.tables[table_index].owner_id)); + } + + (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_release_owner_id + * + * PARAMETERS: table_index - Table index + * + * RETURN: Status + * + * DESCRIPTION: Releases owner_id in table_desc + * + ******************************************************************************/ + +acpi_status acpi_tb_release_owner_id(u32 table_index) +{ + acpi_status status = AE_BAD_PARAMETER; + + ACPI_FUNCTION_TRACE(tb_release_owner_id); + + (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); + if (table_index < acpi_gbl_root_table_list.count) { + acpi_ut_release_owner_id(& + (acpi_gbl_root_table_list. + tables[table_index].owner_id)); + status = AE_OK; + } + + (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_get_owner_id + * + * PARAMETERS: table_index - Table index + * owner_id - Where the table owner_id is returned + * + * RETURN: Status + * + * DESCRIPTION: returns owner_id for the ACPI table + * + ******************************************************************************/ + +acpi_status acpi_tb_get_owner_id(u32 table_index, acpi_owner_id *owner_id) +{ + acpi_status status = AE_BAD_PARAMETER; + + ACPI_FUNCTION_TRACE(tb_get_owner_id); + + (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); + if (table_index < acpi_gbl_root_table_list.count) { + *owner_id = + acpi_gbl_root_table_list.tables[table_index].owner_id; + status = AE_OK; + } + + (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_is_table_loaded + * + * PARAMETERS: table_index - Table index + * + * RETURN: Table Loaded Flag + * + ******************************************************************************/ + +u8 acpi_tb_is_table_loaded(u32 table_index) +{ + u8 is_loaded = FALSE; + + (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); + if (table_index < acpi_gbl_root_table_list.count) { + is_loaded = (u8) + (acpi_gbl_root_table_list.tables[table_index]. + flags & ACPI_TABLE_IS_LOADED); + } + + (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); + return (is_loaded); +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_set_table_loaded_flag + * + * PARAMETERS: table_index - Table index + * is_loaded - TRUE if table is loaded, FALSE otherwise + * + * RETURN: None + * + * DESCRIPTION: Sets the table loaded flag to either TRUE or FALSE. + * + ******************************************************************************/ + +void acpi_tb_set_table_loaded_flag(u32 table_index, u8 is_loaded) +{ + + (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); + if (table_index < acpi_gbl_root_table_list.count) { + if (is_loaded) { + acpi_gbl_root_table_list.tables[table_index].flags |= + ACPI_TABLE_IS_LOADED; + } else { + acpi_gbl_root_table_list.tables[table_index].flags &= + ~ACPI_TABLE_IS_LOADED; + } + } + + (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); +} diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c new file mode 100644 index 000000000000..4eb7189974ca --- /dev/null +++ b/drivers/acpi/acpica/tbutils.c @@ -0,0 +1,582 @@ +/****************************************************************************** + * + * Module Name: tbutils - table utilities + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_TABLES +ACPI_MODULE_NAME("tbutils") + +/* Local prototypes */ +static acpi_physical_address +acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size); + +/******************************************************************************* + * + * FUNCTION: acpi_tb_check_xsdt + * + * PARAMETERS: address - Pointer to the XSDT + * + * RETURN: status + * AE_OK - XSDT is okay + * AE_NO_MEMORY - can't map XSDT + * AE_INVALID_TABLE_LENGTH - invalid table length + * AE_NULL_ENTRY - XSDT has NULL entry + * + * DESCRIPTION: validate XSDT +******************************************************************************/ + +static acpi_status +acpi_tb_check_xsdt(acpi_physical_address address) +{ + struct acpi_table_header *table; + u32 length; + u64 xsdt_entry_address; + u8 *table_entry; + u32 table_count; + int i; + + table = acpi_os_map_memory(address, sizeof(struct acpi_table_header)); + if (!table) + return AE_NO_MEMORY; + + length = table->length; + acpi_os_unmap_memory(table, sizeof(struct acpi_table_header)); + if (length < sizeof(struct acpi_table_header)) + return AE_INVALID_TABLE_LENGTH; + + table = acpi_os_map_memory(address, length); + if (!table) + return AE_NO_MEMORY; + + /* Calculate the number of tables described in XSDT */ + table_count = + (u32) ((table->length - + sizeof(struct acpi_table_header)) / sizeof(u64)); + table_entry = + ACPI_CAST_PTR(u8, table) + sizeof(struct acpi_table_header); + for (i = 0; i < table_count; i++) { + ACPI_MOVE_64_TO_64(&xsdt_entry_address, table_entry); + if (!xsdt_entry_address) { + /* XSDT has NULL entry */ + break; + } + table_entry += sizeof(u64); + } + acpi_os_unmap_memory(table, length); + + if (i < table_count) + return AE_NULL_ENTRY; + else + return AE_OK; +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_initialize_facs + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Create a permanent mapping for the FADT and save it in a global + * for accessing the Global Lock and Firmware Waking Vector + * + ******************************************************************************/ + +acpi_status acpi_tb_initialize_facs(void) +{ + acpi_status status; + + status = acpi_get_table_by_index(ACPI_TABLE_INDEX_FACS, + ACPI_CAST_INDIRECT_PTR(struct + acpi_table_header, + &acpi_gbl_FACS)); + return status; +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_tables_loaded + * + * PARAMETERS: None + * + * RETURN: TRUE if required ACPI tables are loaded + * + * DESCRIPTION: Determine if the minimum required ACPI tables are present + * (FADT, FACS, DSDT) + * + ******************************************************************************/ + +u8 acpi_tb_tables_loaded(void) +{ + + if (acpi_gbl_root_table_list.count >= 3) { + return (TRUE); + } + + return (FALSE); +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_print_table_header + * + * PARAMETERS: Address - Table physical address + * Header - Table header + * + * RETURN: None + * + * DESCRIPTION: Print an ACPI table header. Special cases for FACS and RSDP. + * + ******************************************************************************/ + +void +acpi_tb_print_table_header(acpi_physical_address address, + struct acpi_table_header *header) +{ + + if (ACPI_COMPARE_NAME(header->signature, ACPI_SIG_FACS)) { + + /* FACS only has signature and length fields of common table header */ + + ACPI_INFO((AE_INFO, "%4.4s %08lX, %04X", + header->signature, (unsigned long)address, + header->length)); + } else if (ACPI_COMPARE_NAME(header->signature, ACPI_SIG_RSDP)) { + + /* RSDP has no common fields */ + + ACPI_INFO((AE_INFO, "RSDP %08lX, %04X (r%d %6.6s)", + (unsigned long)address, + (ACPI_CAST_PTR(struct acpi_table_rsdp, header)-> + revision > + 0) ? ACPI_CAST_PTR(struct acpi_table_rsdp, + header)->length : 20, + ACPI_CAST_PTR(struct acpi_table_rsdp, + header)->revision, + ACPI_CAST_PTR(struct acpi_table_rsdp, + header)->oem_id)); + } else { + /* Standard ACPI table with full common header */ + + ACPI_INFO((AE_INFO, + "%4.4s %08lX, %04X (r%d %6.6s %8.8s %8X %4.4s %8X)", + header->signature, (unsigned long)address, + header->length, header->revision, header->oem_id, + header->oem_table_id, header->oem_revision, + header->asl_compiler_id, + header->asl_compiler_revision)); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_validate_checksum + * + * PARAMETERS: Table - ACPI table to verify + * Length - Length of entire table + * + * RETURN: Status + * + * DESCRIPTION: Verifies that the table checksums to zero. Optionally returns + * exception on bad checksum. + * + ******************************************************************************/ + +acpi_status acpi_tb_verify_checksum(struct acpi_table_header *table, u32 length) +{ + u8 checksum; + + /* Compute the checksum on the table */ + + checksum = acpi_tb_checksum(ACPI_CAST_PTR(u8, table), length); + + /* Checksum ok? (should be zero) */ + + if (checksum) { + ACPI_WARNING((AE_INFO, + "Incorrect checksum in table [%4.4s] - %2.2X, should be %2.2X", + table->signature, table->checksum, + (u8) (table->checksum - checksum))); + +#if (ACPI_CHECKSUM_ABORT) + + return (AE_BAD_CHECKSUM); +#endif + } + + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_checksum + * + * PARAMETERS: Buffer - Pointer to memory region to be checked + * Length - Length of this memory region + * + * RETURN: Checksum (u8) + * + * DESCRIPTION: Calculates circular checksum of memory region. + * + ******************************************************************************/ + +u8 acpi_tb_checksum(u8 *buffer, u32 length) +{ + u8 sum = 0; + u8 *end = buffer + length; + + while (buffer < end) { + sum = (u8) (sum + *(buffer++)); + } + + return sum; +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_install_table + * + * PARAMETERS: Address - Physical address of DSDT or FACS + * Flags - Flags + * Signature - Table signature, NULL if no need to + * match + * table_index - Index into root table array + * + * RETURN: None + * + * DESCRIPTION: Install an ACPI table into the global data structure. + * + ******************************************************************************/ + +void +acpi_tb_install_table(acpi_physical_address address, + u8 flags, char *signature, u32 table_index) +{ + struct acpi_table_header *table; + + if (!address) { + ACPI_ERROR((AE_INFO, + "Null physical address for ACPI table [%s]", + signature)); + return; + } + + /* Map just the table header */ + + table = acpi_os_map_memory(address, sizeof(struct acpi_table_header)); + if (!table) { + return; + } + + /* If a particular signature is expected, signature must match */ + + if (signature && !ACPI_COMPARE_NAME(table->signature, signature)) { + ACPI_ERROR((AE_INFO, + "Invalid signature 0x%X for ACPI table [%s]", + *ACPI_CAST_PTR(u32, table->signature), signature)); + goto unmap_and_exit; + } + + /* Initialize the table entry */ + + acpi_gbl_root_table_list.tables[table_index].address = address; + acpi_gbl_root_table_list.tables[table_index].length = table->length; + acpi_gbl_root_table_list.tables[table_index].flags = flags; + + ACPI_MOVE_32_TO_32(& + (acpi_gbl_root_table_list.tables[table_index]. + signature), table->signature); + + acpi_tb_print_table_header(address, table); + + if (table_index == ACPI_TABLE_INDEX_DSDT) { + + /* Global integer width is based upon revision of the DSDT */ + + acpi_ut_set_integer_width(table->revision); + } + + unmap_and_exit: + acpi_os_unmap_memory(table, sizeof(struct acpi_table_header)); +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_get_root_table_entry + * + * PARAMETERS: table_entry - Pointer to the RSDT/XSDT table entry + * table_entry_size - sizeof 32 or 64 (RSDT or XSDT) + * + * RETURN: Physical address extracted from the root table + * + * DESCRIPTION: Get one root table entry. Handles 32-bit and 64-bit cases on + * both 32-bit and 64-bit platforms + * + * NOTE: acpi_physical_address is 32-bit on 32-bit platforms, 64-bit on + * 64-bit platforms. + * + ******************************************************************************/ + +static acpi_physical_address +acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size) +{ + u64 address64; + + /* + * Get the table physical address (32-bit for RSDT, 64-bit for XSDT): + * Note: Addresses are 32-bit aligned (not 64) in both RSDT and XSDT + */ + if (table_entry_size == sizeof(u32)) { + /* + * 32-bit platform, RSDT: Return 32-bit table entry + * 64-bit platform, RSDT: Expand 32-bit to 64-bit and return + */ + return ((acpi_physical_address) + (*ACPI_CAST_PTR(u32, table_entry))); + } else { + /* + * 32-bit platform, XSDT: Truncate 64-bit to 32-bit and return + * 64-bit platform, XSDT: Move (unaligned) 64-bit to local, return 64-bit + */ + ACPI_MOVE_64_TO_64(&address64, table_entry); + +#if ACPI_MACHINE_WIDTH == 32 + if (address64 > ACPI_UINT32_MAX) { + + /* Will truncate 64-bit address to 32 bits, issue warning */ + + ACPI_WARNING((AE_INFO, + "64-bit Physical Address in XSDT is too large (%8.8X%8.8X), truncating", + ACPI_FORMAT_UINT64(address64))); + } +#endif + return ((acpi_physical_address) (address64)); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_parse_root_table + * + * PARAMETERS: Rsdp - Pointer to the RSDP + * Flags - Flags + * + * RETURN: Status + * + * DESCRIPTION: This function is called to parse the Root System Description + * Table (RSDT or XSDT) + * + * NOTE: Tables are mapped (not copied) for efficiency. The FACS must + * be mapped and cannot be copied because it contains the actual + * memory location of the ACPI Global Lock. + * + ******************************************************************************/ + +acpi_status __init +acpi_tb_parse_root_table(acpi_physical_address rsdp_address, u8 flags) +{ + struct acpi_table_rsdp *rsdp; + u32 table_entry_size; + u32 i; + u32 table_count; + struct acpi_table_header *table; + acpi_physical_address address; + acpi_physical_address uninitialized_var(rsdt_address); + u32 length; + u8 *table_entry; + acpi_status status; + + ACPI_FUNCTION_TRACE(tb_parse_root_table); + + /* + * Map the entire RSDP and extract the address of the RSDT or XSDT + */ + rsdp = acpi_os_map_memory(rsdp_address, sizeof(struct acpi_table_rsdp)); + if (!rsdp) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + acpi_tb_print_table_header(rsdp_address, + ACPI_CAST_PTR(struct acpi_table_header, + rsdp)); + + /* Differentiate between RSDT and XSDT root tables */ + + if (rsdp->revision > 1 && rsdp->xsdt_physical_address) { + /* + * Root table is an XSDT (64-bit physical addresses). We must use the + * XSDT if the revision is > 1 and the XSDT pointer is present, as per + * the ACPI specification. + */ + address = (acpi_physical_address) rsdp->xsdt_physical_address; + table_entry_size = sizeof(u64); + rsdt_address = (acpi_physical_address) + rsdp->rsdt_physical_address; + } else { + /* Root table is an RSDT (32-bit physical addresses) */ + + address = (acpi_physical_address) rsdp->rsdt_physical_address; + table_entry_size = sizeof(u32); + } + + /* + * It is not possible to map more than one entry in some environments, + * so unmap the RSDP here before mapping other tables + */ + acpi_os_unmap_memory(rsdp, sizeof(struct acpi_table_rsdp)); + + if (table_entry_size == sizeof(u64)) { + if (acpi_tb_check_xsdt(address) == AE_NULL_ENTRY) { + /* XSDT has NULL entry, RSDT is used */ + address = rsdt_address; + table_entry_size = sizeof(u32); + ACPI_WARNING((AE_INFO, "BIOS XSDT has NULL entry, " + "using RSDT")); + } + } + /* Map the RSDT/XSDT table header to get the full table length */ + + table = acpi_os_map_memory(address, sizeof(struct acpi_table_header)); + if (!table) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + acpi_tb_print_table_header(address, table); + + /* Get the length of the full table, verify length and map entire table */ + + length = table->length; + acpi_os_unmap_memory(table, sizeof(struct acpi_table_header)); + + if (length < sizeof(struct acpi_table_header)) { + ACPI_ERROR((AE_INFO, "Invalid length 0x%X in RSDT/XSDT", + length)); + return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH); + } + + table = acpi_os_map_memory(address, length); + if (!table) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* Validate the root table checksum */ + + status = acpi_tb_verify_checksum(table, length); + if (ACPI_FAILURE(status)) { + acpi_os_unmap_memory(table, length); + return_ACPI_STATUS(status); + } + + /* Calculate the number of tables described in the root table */ + + table_count = + (u32) ((table->length - + sizeof(struct acpi_table_header)) / table_entry_size); + + /* + * First two entries in the table array are reserved for the DSDT and FACS, + * which are not actually present in the RSDT/XSDT - they come from the FADT + */ + table_entry = + ACPI_CAST_PTR(u8, table) + sizeof(struct acpi_table_header); + acpi_gbl_root_table_list.count = 2; + + /* + * Initialize the root table array from the RSDT/XSDT + */ + for (i = 0; i < table_count; i++) { + if (acpi_gbl_root_table_list.count >= + acpi_gbl_root_table_list.size) { + + /* There is no more room in the root table array, attempt resize */ + + status = acpi_tb_resize_root_table_list(); + if (ACPI_FAILURE(status)) { + ACPI_WARNING((AE_INFO, + "Truncating %u table entries!", + (unsigned) + (acpi_gbl_root_table_list.size - + acpi_gbl_root_table_list. + count))); + break; + } + } + + /* Get the table physical address (32-bit for RSDT, 64-bit for XSDT) */ + + acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count]. + address = + acpi_tb_get_root_table_entry(table_entry, table_entry_size); + + table_entry += table_entry_size; + acpi_gbl_root_table_list.count++; + } + + /* + * It is not possible to map more than one entry in some environments, + * so unmap the root table here before mapping other tables + */ + acpi_os_unmap_memory(table, length); + + /* + * Complete the initialization of the root table array by examining + * the header of each table + */ + for (i = 2; i < acpi_gbl_root_table_list.count; i++) { + acpi_tb_install_table(acpi_gbl_root_table_list.tables[i]. + address, flags, NULL, i); + + /* Special case for FADT - get the DSDT and FACS */ + + if (ACPI_COMPARE_NAME + (&acpi_gbl_root_table_list.tables[i].signature, + ACPI_SIG_FADT)) { + acpi_tb_parse_fadt(i, flags); + } + } + + return_ACPI_STATUS(AE_OK); +} diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c new file mode 100644 index 000000000000..115796694a2f --- /dev/null +++ b/drivers/acpi/acpica/tbxface.c @@ -0,0 +1,735 @@ +/****************************************************************************** + * + * Module Name: tbxface - Public interfaces to the ACPI subsystem + * ACPI table oriented interfaces + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include + +#define _COMPONENT ACPI_TABLES +ACPI_MODULE_NAME("tbxface") + +/* Local prototypes */ +static acpi_status acpi_tb_load_namespace(void); + +static int no_auto_ssdt; + +/******************************************************************************* + * + * FUNCTION: acpi_allocate_root_table + * + * PARAMETERS: initial_table_count - Size of initial_table_array, in number of + * struct acpi_table_desc structures + * + * RETURN: Status + * + * DESCRIPTION: Allocate a root table array. Used by i_aSL compiler and + * acpi_initialize_tables. + * + ******************************************************************************/ + +acpi_status acpi_allocate_root_table(u32 initial_table_count) +{ + + acpi_gbl_root_table_list.size = initial_table_count; + acpi_gbl_root_table_list.flags = ACPI_ROOT_ALLOW_RESIZE; + + return (acpi_tb_resize_root_table_list()); +} + +/******************************************************************************* + * + * FUNCTION: acpi_initialize_tables + * + * PARAMETERS: initial_table_array - Pointer to an array of pre-allocated + * struct acpi_table_desc structures. If NULL, the + * array is dynamically allocated. + * initial_table_count - Size of initial_table_array, in number of + * struct acpi_table_desc structures + * allow_realloc - Flag to tell Table Manager if resize of + * pre-allocated array is allowed. Ignored + * if initial_table_array is NULL. + * + * RETURN: Status + * + * DESCRIPTION: Initialize the table manager, get the RSDP and RSDT/XSDT. + * + * NOTE: Allows static allocation of the initial table array in order + * to avoid the use of dynamic memory in confined environments + * such as the kernel boot sequence where it may not be available. + * + * If the host OS memory managers are initialized, use NULL for + * initial_table_array, and the table will be dynamically allocated. + * + ******************************************************************************/ + +acpi_status __init +acpi_initialize_tables(struct acpi_table_desc * initial_table_array, + u32 initial_table_count, u8 allow_resize) +{ + acpi_physical_address rsdp_address; + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_initialize_tables); + + /* + * Set up the Root Table Array + * Allocate the table array if requested + */ + if (!initial_table_array) { + status = acpi_allocate_root_table(initial_table_count); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } else { + /* Root Table Array has been statically allocated by the host */ + + ACPI_MEMSET(initial_table_array, 0, + (acpi_size) initial_table_count * + sizeof(struct acpi_table_desc)); + + acpi_gbl_root_table_list.tables = initial_table_array; + acpi_gbl_root_table_list.size = initial_table_count; + acpi_gbl_root_table_list.flags = ACPI_ROOT_ORIGIN_UNKNOWN; + if (allow_resize) { + acpi_gbl_root_table_list.flags |= + ACPI_ROOT_ALLOW_RESIZE; + } + } + + /* Get the address of the RSDP */ + + rsdp_address = acpi_os_get_root_pointer(); + if (!rsdp_address) { + return_ACPI_STATUS(AE_NOT_FOUND); + } + + /* + * Get the root table (RSDT or XSDT) and extract all entries to the local + * Root Table Array. This array contains the information of the RSDT/XSDT + * in a common, more useable format. + */ + status = + acpi_tb_parse_root_table(rsdp_address, ACPI_TABLE_ORIGIN_MAPPED); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_reallocate_root_table + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Reallocate Root Table List into dynamic memory. Copies the + * root list from the previously provided scratch area. Should + * be called once dynamic memory allocation is available in the + * kernel + * + ******************************************************************************/ +acpi_status acpi_reallocate_root_table(void) +{ + struct acpi_table_desc *tables; + acpi_size new_size; + + ACPI_FUNCTION_TRACE(acpi_reallocate_root_table); + + /* + * Only reallocate the root table if the host provided a static buffer + * for the table array in the call to acpi_initialize_tables. + */ + if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) { + return_ACPI_STATUS(AE_SUPPORT); + } + + new_size = ((acpi_size) acpi_gbl_root_table_list.count + + ACPI_ROOT_TABLE_SIZE_INCREMENT) * + sizeof(struct acpi_table_desc); + + /* Create new array and copy the old array */ + + tables = ACPI_ALLOCATE_ZEROED(new_size); + if (!tables) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + ACPI_MEMCPY(tables, acpi_gbl_root_table_list.tables, new_size); + + acpi_gbl_root_table_list.size = acpi_gbl_root_table_list.count; + acpi_gbl_root_table_list.tables = tables; + acpi_gbl_root_table_list.flags = + ACPI_ROOT_ORIGIN_ALLOCATED | ACPI_ROOT_ALLOW_RESIZE; + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_load_table + * + * PARAMETERS: table_ptr - pointer to a buffer containing the entire + * table to be loaded + * + * RETURN: Status + * + * DESCRIPTION: This function is called to load a table from the caller's + * buffer. The buffer must contain an entire ACPI Table including + * a valid header. The header fields will be verified, and if it + * is determined that the table is invalid, the call will fail. + * + ******************************************************************************/ +acpi_status acpi_load_table(struct acpi_table_header *table_ptr) +{ + acpi_status status; + u32 table_index; + struct acpi_table_desc table_desc; + + if (!table_ptr) + return AE_BAD_PARAMETER; + + ACPI_MEMSET(&table_desc, 0, sizeof(struct acpi_table_desc)); + table_desc.pointer = table_ptr; + table_desc.length = table_ptr->length; + table_desc.flags = ACPI_TABLE_ORIGIN_UNKNOWN; + + /* + * Install the new table into the local data structures + */ + status = acpi_tb_add_table(&table_desc, &table_index); + if (ACPI_FAILURE(status)) { + return status; + } + status = acpi_ns_load_table(table_index, acpi_gbl_root_node); + return status; +} + +ACPI_EXPORT_SYMBOL(acpi_load_table) + +/****************************************************************************** + * + * FUNCTION: acpi_get_table_header + * + * PARAMETERS: Signature - ACPI signature of needed table + * Instance - Which instance (for SSDTs) + * out_table_header - The pointer to the table header to fill + * + * RETURN: Status and pointer to mapped table header + * + * DESCRIPTION: Finds an ACPI table header. + * + * NOTE: Caller is responsible in unmapping the header with + * acpi_os_unmap_memory + * + *****************************************************************************/ +acpi_status +acpi_get_table_header(char *signature, + u32 instance, struct acpi_table_header *out_table_header) +{ + u32 i; + u32 j; + struct acpi_table_header *header; + + /* Parameter validation */ + + if (!signature || !out_table_header) { + return (AE_BAD_PARAMETER); + } + + /* + * Walk the root table list + */ + for (i = 0, j = 0; i < acpi_gbl_root_table_list.count; i++) { + if (!ACPI_COMPARE_NAME + (&(acpi_gbl_root_table_list.tables[i].signature), + signature)) { + continue; + } + + if (++j < instance) { + continue; + } + + if (!acpi_gbl_root_table_list.tables[i].pointer) { + if ((acpi_gbl_root_table_list.tables[i]. + flags & ACPI_TABLE_ORIGIN_MASK) == + ACPI_TABLE_ORIGIN_MAPPED) { + header = + acpi_os_map_memory(acpi_gbl_root_table_list. + tables[i].address, + sizeof(struct + acpi_table_header)); + if (!header) { + return AE_NO_MEMORY; + } + ACPI_MEMCPY(out_table_header, header, + sizeof(struct acpi_table_header)); + acpi_os_unmap_memory(header, + sizeof(struct + acpi_table_header)); + } else { + return AE_NOT_FOUND; + } + } else { + ACPI_MEMCPY(out_table_header, + acpi_gbl_root_table_list.tables[i].pointer, + sizeof(struct acpi_table_header)); + } + return (AE_OK); + } + + return (AE_NOT_FOUND); +} + +ACPI_EXPORT_SYMBOL(acpi_get_table_header) + +/****************************************************************************** + * + * FUNCTION: acpi_unload_table_id + * + * PARAMETERS: id - Owner ID of the table to be removed. + * + * RETURN: Status + * + * DESCRIPTION: This routine is used to force the unload of a table (by id) + * + ******************************************************************************/ +acpi_status acpi_unload_table_id(acpi_owner_id id) +{ + int i; + acpi_status status = AE_NOT_EXIST; + + ACPI_FUNCTION_TRACE(acpi_unload_table_id); + + /* Find table in the global table list */ + for (i = 0; i < acpi_gbl_root_table_list.count; ++i) { + if (id != acpi_gbl_root_table_list.tables[i].owner_id) { + continue; + } + /* + * Delete all namespace objects owned by this table. Note that these + * objects can appear anywhere in the namespace by virtue of the AML + * "Scope" operator. Thus, we need to track ownership by an ID, not + * simply a position within the hierarchy + */ + acpi_tb_delete_namespace_by_owner(i); + status = acpi_tb_release_owner_id(i); + acpi_tb_set_table_loaded_flag(i, FALSE); + break; + } + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_unload_table_id) + +/******************************************************************************* + * + * FUNCTION: acpi_get_table + * + * PARAMETERS: Signature - ACPI signature of needed table + * Instance - Which instance (for SSDTs) + * out_table - Where the pointer to the table is returned + * + * RETURN: Status and pointer to table + * + * DESCRIPTION: Finds and verifies an ACPI table. + * + *****************************************************************************/ +acpi_status +acpi_get_table(char *signature, + u32 instance, struct acpi_table_header **out_table) +{ + u32 i; + u32 j; + acpi_status status; + + /* Parameter validation */ + + if (!signature || !out_table) { + return (AE_BAD_PARAMETER); + } + + /* + * Walk the root table list + */ + for (i = 0, j = 0; i < acpi_gbl_root_table_list.count; i++) { + if (!ACPI_COMPARE_NAME + (&(acpi_gbl_root_table_list.tables[i].signature), + signature)) { + continue; + } + + if (++j < instance) { + continue; + } + + status = + acpi_tb_verify_table(&acpi_gbl_root_table_list.tables[i]); + if (ACPI_SUCCESS(status)) { + *out_table = acpi_gbl_root_table_list.tables[i].pointer; + } + + if (!acpi_gbl_permanent_mmap) { + acpi_gbl_root_table_list.tables[i].pointer = NULL; + } + + return (status); + } + + return (AE_NOT_FOUND); +} + +ACPI_EXPORT_SYMBOL(acpi_get_table) + +/******************************************************************************* + * + * FUNCTION: acpi_get_table_by_index + * + * PARAMETERS: table_index - Table index + * Table - Where the pointer to the table is returned + * + * RETURN: Status and pointer to the table + * + * DESCRIPTION: Obtain a table by an index into the global table list. + * + ******************************************************************************/ +acpi_status +acpi_get_table_by_index(u32 table_index, struct acpi_table_header **table) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_get_table_by_index); + + /* Parameter validation */ + + if (!table) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); + + /* Validate index */ + + if (table_index >= acpi_gbl_root_table_list.count) { + (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + if (!acpi_gbl_root_table_list.tables[table_index].pointer) { + + /* Table is not mapped, map it */ + + status = + acpi_tb_verify_table(&acpi_gbl_root_table_list. + tables[table_index]); + if (ACPI_FAILURE(status)) { + (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); + return_ACPI_STATUS(status); + } + } + + *table = acpi_gbl_root_table_list.tables[table_index].pointer; + (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); + return_ACPI_STATUS(AE_OK); +} + +ACPI_EXPORT_SYMBOL(acpi_get_table_by_index) + +/******************************************************************************* + * + * FUNCTION: acpi_tb_load_namespace + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Load the namespace from the DSDT and all SSDTs/PSDTs found in + * the RSDT/XSDT. + * + ******************************************************************************/ +static acpi_status acpi_tb_load_namespace(void) +{ + acpi_status status; + struct acpi_table_header *table; + u32 i; + + ACPI_FUNCTION_TRACE(tb_load_namespace); + + (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); + + /* + * Load the namespace. The DSDT is required, but any SSDT and PSDT tables + * are optional. + */ + if (!acpi_gbl_root_table_list.count || + !ACPI_COMPARE_NAME(& + (acpi_gbl_root_table_list. + tables[ACPI_TABLE_INDEX_DSDT].signature), + ACPI_SIG_DSDT) + || + ACPI_FAILURE(acpi_tb_verify_table + (&acpi_gbl_root_table_list. + tables[ACPI_TABLE_INDEX_DSDT]))) { + status = AE_NO_ACPI_TABLES; + goto unlock_and_exit; + } + + /* + * Find DSDT table + */ + status = + acpi_os_table_override(acpi_gbl_root_table_list. + tables[ACPI_TABLE_INDEX_DSDT].pointer, + &table); + if (ACPI_SUCCESS(status) && table) { + /* + * DSDT table has been found + */ + acpi_tb_delete_table(&acpi_gbl_root_table_list. + tables[ACPI_TABLE_INDEX_DSDT]); + acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_DSDT].pointer = + table; + acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_DSDT].length = + table->length; + acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_DSDT].flags = + ACPI_TABLE_ORIGIN_UNKNOWN; + + ACPI_INFO((AE_INFO, "Table DSDT replaced by host OS")); + acpi_tb_print_table_header(0, table); + + if (no_auto_ssdt == 0) { + printk(KERN_WARNING "ACPI: DSDT override uses original SSDTs unless \"acpi_no_auto_ssdt\"\n"); + } + } + + status = + acpi_tb_verify_table(&acpi_gbl_root_table_list. + tables[ACPI_TABLE_INDEX_DSDT]); + if (ACPI_FAILURE(status)) { + + /* A valid DSDT is required */ + + status = AE_NO_ACPI_TABLES; + goto unlock_and_exit; + } + + (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); + + /* + * Load and parse tables. + */ + status = acpi_ns_load_table(ACPI_TABLE_INDEX_DSDT, acpi_gbl_root_node); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * Load any SSDT or PSDT tables. Note: Loop leaves tables locked + */ + (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); + for (i = 0; i < acpi_gbl_root_table_list.count; ++i) { + if ((!ACPI_COMPARE_NAME + (&(acpi_gbl_root_table_list.tables[i].signature), + ACPI_SIG_SSDT) + && + !ACPI_COMPARE_NAME(& + (acpi_gbl_root_table_list.tables[i]. + signature), ACPI_SIG_PSDT)) + || + ACPI_FAILURE(acpi_tb_verify_table + (&acpi_gbl_root_table_list.tables[i]))) { + continue; + } + + if (no_auto_ssdt) { + printk(KERN_WARNING "ACPI: SSDT ignored due to \"acpi_no_auto_ssdt\"\n"); + continue; + } + + /* Ignore errors while loading tables, get as many as possible */ + + (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); + (void)acpi_ns_load_table(i, acpi_gbl_root_node); + (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); + } + + ACPI_DEBUG_PRINT((ACPI_DB_INIT, "ACPI Tables successfully acquired\n")); + + unlock_and_exit: + (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_load_tables + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Load the ACPI tables from the RSDT/XSDT + * + ******************************************************************************/ + +acpi_status acpi_load_tables(void) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_load_tables); + + /* + * Load the namespace from the tables + */ + status = acpi_tb_load_namespace(); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "While loading namespace from ACPI tables")); + } + + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_load_tables) + + +/******************************************************************************* + * + * FUNCTION: acpi_install_table_handler + * + * PARAMETERS: Handler - Table event handler + * Context - Value passed to the handler on each event + * + * RETURN: Status + * + * DESCRIPTION: Install table event handler + * + ******************************************************************************/ +acpi_status +acpi_install_table_handler(acpi_tbl_handler handler, void *context) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_install_table_handler); + + if (!handler) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Don't allow more than one handler */ + + if (acpi_gbl_table_handler) { + status = AE_ALREADY_EXISTS; + goto cleanup; + } + + /* Install the handler */ + + acpi_gbl_table_handler = handler; + acpi_gbl_table_handler_context = context; + + cleanup: + (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_install_table_handler) + +/******************************************************************************* + * + * FUNCTION: acpi_remove_table_handler + * + * PARAMETERS: Handler - Table event handler that was installed + * previously. + * + * RETURN: Status + * + * DESCRIPTION: Remove table event handler + * + ******************************************************************************/ +acpi_status acpi_remove_table_handler(acpi_tbl_handler handler) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_remove_table_handler); + + status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Make sure that the installed handler is the same */ + + if (!handler || handler != acpi_gbl_table_handler) { + status = AE_BAD_PARAMETER; + goto cleanup; + } + + /* Remove the handler */ + + acpi_gbl_table_handler = NULL; + + cleanup: + (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_remove_table_handler) + + +static int __init acpi_no_auto_ssdt_setup(char *s) { + + printk(KERN_NOTICE "ACPI: SSDT auto-load disabled\n"); + + no_auto_ssdt = 1; + + return 1; +} + +__setup("acpi_no_auto_ssdt", acpi_no_auto_ssdt_setup); diff --git a/drivers/acpi/acpica/tbxfroot.c b/drivers/acpi/acpica/tbxfroot.c new file mode 100644 index 000000000000..3495dca4e86b --- /dev/null +++ b/drivers/acpi/acpica/tbxfroot.c @@ -0,0 +1,274 @@ +/****************************************************************************** + * + * Module Name: tbxfroot - Find the root ACPI table (RSDT) + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_TABLES +ACPI_MODULE_NAME("tbxfroot") + +/* Local prototypes */ +static u8 *acpi_tb_scan_memory_for_rsdp(u8 * start_address, u32 length); + +static acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp); + +/******************************************************************************* + * + * FUNCTION: acpi_tb_validate_rsdp + * + * PARAMETERS: Rsdp - Pointer to unvalidated RSDP + * + * RETURN: Status + * + * DESCRIPTION: Validate the RSDP (ptr) + * + ******************************************************************************/ + +static acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp) +{ + ACPI_FUNCTION_ENTRY(); + + /* + * The signature and checksum must both be correct + * + * Note: Sometimes there exists more than one RSDP in memory; the valid + * RSDP has a valid checksum, all others have an invalid checksum. + */ + if (ACPI_STRNCMP((char *)rsdp, ACPI_SIG_RSDP, sizeof(ACPI_SIG_RSDP) - 1) + != 0) { + + /* Nope, BAD Signature */ + + return (AE_BAD_SIGNATURE); + } + + /* Check the standard checksum */ + + if (acpi_tb_checksum((u8 *) rsdp, ACPI_RSDP_CHECKSUM_LENGTH) != 0) { + return (AE_BAD_CHECKSUM); + } + + /* Check extended checksum if table version >= 2 */ + + if ((rsdp->revision >= 2) && + (acpi_tb_checksum((u8 *) rsdp, ACPI_RSDP_XCHECKSUM_LENGTH) != 0)) { + return (AE_BAD_CHECKSUM); + } + + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_find_root_pointer + * + * PARAMETERS: table_address - Where the table pointer is returned + * + * RETURN: Status, RSDP physical address + * + * DESCRIPTION: Search lower 1_mbyte of memory for the root system descriptor + * pointer structure. If it is found, set *RSDP to point to it. + * + * NOTE1: The RSDP must be either in the first 1_k of the Extended + * BIOS Data Area or between E0000 and FFFFF (From ACPI Spec.) + * Only a 32-bit physical address is necessary. + * + * NOTE2: This function is always available, regardless of the + * initialization state of the rest of ACPI. + * + ******************************************************************************/ + +acpi_status acpi_find_root_pointer(acpi_size *table_address) +{ + u8 *table_ptr; + u8 *mem_rover; + u32 physical_address; + + ACPI_FUNCTION_TRACE(acpi_find_root_pointer); + + /* 1a) Get the location of the Extended BIOS Data Area (EBDA) */ + + table_ptr = acpi_os_map_memory((acpi_physical_address) + ACPI_EBDA_PTR_LOCATION, + ACPI_EBDA_PTR_LENGTH); + if (!table_ptr) { + ACPI_ERROR((AE_INFO, + "Could not map memory at %8.8X for length %X", + ACPI_EBDA_PTR_LOCATION, ACPI_EBDA_PTR_LENGTH)); + + return_ACPI_STATUS(AE_NO_MEMORY); + } + + ACPI_MOVE_16_TO_32(&physical_address, table_ptr); + + /* Convert segment part to physical address */ + + physical_address <<= 4; + acpi_os_unmap_memory(table_ptr, ACPI_EBDA_PTR_LENGTH); + + /* EBDA present? */ + + if (physical_address > 0x400) { + /* + * 1b) Search EBDA paragraphs (EBDA is required to be a + * minimum of 1_k length) + */ + table_ptr = acpi_os_map_memory((acpi_physical_address) + physical_address, + ACPI_EBDA_WINDOW_SIZE); + if (!table_ptr) { + ACPI_ERROR((AE_INFO, + "Could not map memory at %8.8X for length %X", + physical_address, ACPI_EBDA_WINDOW_SIZE)); + + return_ACPI_STATUS(AE_NO_MEMORY); + } + + mem_rover = + acpi_tb_scan_memory_for_rsdp(table_ptr, + ACPI_EBDA_WINDOW_SIZE); + acpi_os_unmap_memory(table_ptr, ACPI_EBDA_WINDOW_SIZE); + + if (mem_rover) { + + /* Return the physical address */ + + physical_address += + (u32) ACPI_PTR_DIFF(mem_rover, table_ptr); + + *table_address = physical_address; + return_ACPI_STATUS(AE_OK); + } + } + + /* + * 2) Search upper memory: 16-byte boundaries in E0000h-FFFFFh + */ + table_ptr = acpi_os_map_memory((acpi_physical_address) + ACPI_HI_RSDP_WINDOW_BASE, + ACPI_HI_RSDP_WINDOW_SIZE); + + if (!table_ptr) { + ACPI_ERROR((AE_INFO, + "Could not map memory at %8.8X for length %X", + ACPI_HI_RSDP_WINDOW_BASE, + ACPI_HI_RSDP_WINDOW_SIZE)); + + return_ACPI_STATUS(AE_NO_MEMORY); + } + + mem_rover = + acpi_tb_scan_memory_for_rsdp(table_ptr, ACPI_HI_RSDP_WINDOW_SIZE); + acpi_os_unmap_memory(table_ptr, ACPI_HI_RSDP_WINDOW_SIZE); + + if (mem_rover) { + + /* Return the physical address */ + + physical_address = (u32) + (ACPI_HI_RSDP_WINDOW_BASE + + ACPI_PTR_DIFF(mem_rover, table_ptr)); + + *table_address = physical_address; + return_ACPI_STATUS(AE_OK); + } + + /* A valid RSDP was not found */ + + ACPI_ERROR((AE_INFO, "A valid RSDP was not found")); + return_ACPI_STATUS(AE_NOT_FOUND); +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_scan_memory_for_rsdp + * + * PARAMETERS: start_address - Starting pointer for search + * Length - Maximum length to search + * + * RETURN: Pointer to the RSDP if found, otherwise NULL. + * + * DESCRIPTION: Search a block of memory for the RSDP signature + * + ******************************************************************************/ +static u8 *acpi_tb_scan_memory_for_rsdp(u8 * start_address, u32 length) +{ + acpi_status status; + u8 *mem_rover; + u8 *end_address; + + ACPI_FUNCTION_TRACE(tb_scan_memory_for_rsdp); + + end_address = start_address + length; + + /* Search from given start address for the requested length */ + + for (mem_rover = start_address; mem_rover < end_address; + mem_rover += ACPI_RSDP_SCAN_STEP) { + + /* The RSDP signature and checksum must both be correct */ + + status = + acpi_tb_validate_rsdp(ACPI_CAST_PTR + (struct acpi_table_rsdp, mem_rover)); + if (ACPI_SUCCESS(status)) { + + /* Sig and checksum valid, we have found a real RSDP */ + + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "RSDP located at physical address %p\n", + mem_rover)); + return_PTR(mem_rover); + } + + /* No sig match or bad checksum, keep searching */ + } + + /* Searched entire block, no RSDP was found */ + + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Searched entire block from %p, valid RSDP was not found\n", + start_address)); + return_PTR(NULL); +} diff --git a/drivers/acpi/acpica/utalloc.c b/drivers/acpi/acpica/utalloc.c new file mode 100644 index 000000000000..2a017b29aa41 --- /dev/null +++ b/drivers/acpi/acpica/utalloc.c @@ -0,0 +1,383 @@ +/****************************************************************************** + * + * Module Name: utalloc - local memory allocation routines + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_UTILITIES +ACPI_MODULE_NAME("utalloc") + +/******************************************************************************* + * + * FUNCTION: acpi_ut_create_caches + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Create all local caches + * + ******************************************************************************/ +acpi_status acpi_ut_create_caches(void) +{ + acpi_status status; + + /* Object Caches, for frequently used objects */ + + status = + acpi_os_create_cache("Acpi-Namespace", + sizeof(struct acpi_namespace_node), + ACPI_MAX_NAMESPACE_CACHE_DEPTH, + &acpi_gbl_namespace_cache); + if (ACPI_FAILURE(status)) { + return (status); + } + + status = + acpi_os_create_cache("Acpi-State", sizeof(union acpi_generic_state), + ACPI_MAX_STATE_CACHE_DEPTH, + &acpi_gbl_state_cache); + if (ACPI_FAILURE(status)) { + return (status); + } + + status = + acpi_os_create_cache("Acpi-Parse", + sizeof(struct acpi_parse_obj_common), + ACPI_MAX_PARSE_CACHE_DEPTH, + &acpi_gbl_ps_node_cache); + if (ACPI_FAILURE(status)) { + return (status); + } + + status = + acpi_os_create_cache("Acpi-ParseExt", + sizeof(struct acpi_parse_obj_named), + ACPI_MAX_EXTPARSE_CACHE_DEPTH, + &acpi_gbl_ps_node_ext_cache); + if (ACPI_FAILURE(status)) { + return (status); + } + + status = + acpi_os_create_cache("Acpi-Operand", + sizeof(union acpi_operand_object), + ACPI_MAX_OBJECT_CACHE_DEPTH, + &acpi_gbl_operand_cache); + if (ACPI_FAILURE(status)) { + return (status); + } +#ifdef ACPI_DBG_TRACK_ALLOCATIONS + + /* Memory allocation lists */ + + status = acpi_ut_create_list("Acpi-Global", 0, &acpi_gbl_global_list); + if (ACPI_FAILURE(status)) { + return (status); + } + + status = + acpi_ut_create_list("Acpi-Namespace", + sizeof(struct acpi_namespace_node), + &acpi_gbl_ns_node_list); + if (ACPI_FAILURE(status)) { + return (status); + } +#endif + + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_delete_caches + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Purge and delete all local caches + * + ******************************************************************************/ + +acpi_status acpi_ut_delete_caches(void) +{ +#ifdef ACPI_DBG_TRACK_ALLOCATIONS + char buffer[7]; + + if (acpi_gbl_display_final_mem_stats) { + ACPI_STRCPY(buffer, "MEMORY"); + (void)acpi_db_display_statistics(buffer); + } +#endif + + (void)acpi_os_delete_cache(acpi_gbl_namespace_cache); + acpi_gbl_namespace_cache = NULL; + + (void)acpi_os_delete_cache(acpi_gbl_state_cache); + acpi_gbl_state_cache = NULL; + + (void)acpi_os_delete_cache(acpi_gbl_operand_cache); + acpi_gbl_operand_cache = NULL; + + (void)acpi_os_delete_cache(acpi_gbl_ps_node_cache); + acpi_gbl_ps_node_cache = NULL; + + (void)acpi_os_delete_cache(acpi_gbl_ps_node_ext_cache); + acpi_gbl_ps_node_ext_cache = NULL; + +#ifdef ACPI_DBG_TRACK_ALLOCATIONS + + /* Debug only - display leftover memory allocation, if any */ + + acpi_ut_dump_allocations(ACPI_UINT32_MAX, NULL); + + /* Free memory lists */ + + ACPI_FREE(acpi_gbl_global_list); + acpi_gbl_global_list = NULL; + + ACPI_FREE(acpi_gbl_ns_node_list); + acpi_gbl_ns_node_list = NULL; +#endif + + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_validate_buffer + * + * PARAMETERS: Buffer - Buffer descriptor to be validated + * + * RETURN: Status + * + * DESCRIPTION: Perform parameter validation checks on an struct acpi_buffer + * + ******************************************************************************/ + +acpi_status acpi_ut_validate_buffer(struct acpi_buffer * buffer) +{ + + /* Obviously, the structure pointer must be valid */ + + if (!buffer) { + return (AE_BAD_PARAMETER); + } + + /* Special semantics for the length */ + + if ((buffer->length == ACPI_NO_BUFFER) || + (buffer->length == ACPI_ALLOCATE_BUFFER) || + (buffer->length == ACPI_ALLOCATE_LOCAL_BUFFER)) { + return (AE_OK); + } + + /* Length is valid, the buffer pointer must be also */ + + if (!buffer->pointer) { + return (AE_BAD_PARAMETER); + } + + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_initialize_buffer + * + * PARAMETERS: Buffer - Buffer to be validated + * required_length - Length needed + * + * RETURN: Status + * + * DESCRIPTION: Validate that the buffer is of the required length or + * allocate a new buffer. Returned buffer is always zeroed. + * + ******************************************************************************/ + +acpi_status +acpi_ut_initialize_buffer(struct acpi_buffer * buffer, + acpi_size required_length) +{ + acpi_size input_buffer_length; + + /* Parameter validation */ + + if (!buffer || !required_length) { + return (AE_BAD_PARAMETER); + } + + /* + * Buffer->Length is used as both an input and output parameter. Get the + * input actual length and set the output required buffer length. + */ + input_buffer_length = buffer->length; + buffer->length = required_length; + + /* + * The input buffer length contains the actual buffer length, or the type + * of buffer to be allocated by this routine. + */ + switch (input_buffer_length) { + case ACPI_NO_BUFFER: + + /* Return the exception (and the required buffer length) */ + + return (AE_BUFFER_OVERFLOW); + + case ACPI_ALLOCATE_BUFFER: + + /* Allocate a new buffer */ + + buffer->pointer = acpi_os_allocate(required_length); + break; + + case ACPI_ALLOCATE_LOCAL_BUFFER: + + /* Allocate a new buffer with local interface to allow tracking */ + + buffer->pointer = ACPI_ALLOCATE(required_length); + break; + + default: + + /* Existing buffer: Validate the size of the buffer */ + + if (input_buffer_length < required_length) { + return (AE_BUFFER_OVERFLOW); + } + break; + } + + /* Validate allocation from above or input buffer pointer */ + + if (!buffer->pointer) { + return (AE_NO_MEMORY); + } + + /* Have a valid buffer, clear it */ + + ACPI_MEMSET(buffer->pointer, 0, required_length); + return (AE_OK); +} + +#ifdef NOT_USED_BY_LINUX +/******************************************************************************* + * + * FUNCTION: acpi_ut_allocate + * + * PARAMETERS: Size - Size of the allocation + * Component - Component type of caller + * Module - Source file name of caller + * Line - Line number of caller + * + * RETURN: Address of the allocated memory on success, NULL on failure. + * + * DESCRIPTION: Subsystem equivalent of malloc. + * + ******************************************************************************/ + +void *acpi_ut_allocate(acpi_size size, + u32 component, const char *module, u32 line) +{ + void *allocation; + + ACPI_FUNCTION_TRACE_U32(ut_allocate, size); + + /* Check for an inadvertent size of zero bytes */ + + if (!size) { + ACPI_WARNING((module, line, + "Attempt to allocate zero bytes, allocating 1 byte")); + size = 1; + } + + allocation = acpi_os_allocate(size); + if (!allocation) { + + /* Report allocation error */ + + ACPI_WARNING((module, line, + "Could not allocate size %X", (u32) size)); + + return_PTR(NULL); + } + + return_PTR(allocation); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_allocate_zeroed + * + * PARAMETERS: Size - Size of the allocation + * Component - Component type of caller + * Module - Source file name of caller + * Line - Line number of caller + * + * RETURN: Address of the allocated memory on success, NULL on failure. + * + * DESCRIPTION: Subsystem equivalent of calloc. Allocate and zero memory. + * + ******************************************************************************/ + +void *acpi_ut_allocate_zeroed(acpi_size size, + u32 component, const char *module, u32 line) +{ + void *allocation; + + ACPI_FUNCTION_ENTRY(); + + allocation = acpi_ut_allocate(size, component, module, line); + if (allocation) { + + /* Clear the memory block */ + + ACPI_MEMSET(allocation, 0, size); + } + + return (allocation); +} +#endif diff --git a/drivers/acpi/acpica/utcopy.c b/drivers/acpi/acpica/utcopy.c new file mode 100644 index 000000000000..e6f3002312e5 --- /dev/null +++ b/drivers/acpi/acpica/utcopy.c @@ -0,0 +1,970 @@ +/****************************************************************************** + * + * Module Name: utcopy - Internal to external object translation utilities + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + + +#define _COMPONENT ACPI_UTILITIES +ACPI_MODULE_NAME("utcopy") + +/* Local prototypes */ +static acpi_status +acpi_ut_copy_isimple_to_esimple(union acpi_operand_object *internal_object, + union acpi_object *external_object, + u8 * data_space, acpi_size * buffer_space_used); + +static acpi_status +acpi_ut_copy_ielement_to_ielement(u8 object_type, + union acpi_operand_object *source_object, + union acpi_generic_state *state, + void *context); + +static acpi_status +acpi_ut_copy_ipackage_to_epackage(union acpi_operand_object *internal_object, + u8 * buffer, acpi_size * space_used); + +static acpi_status +acpi_ut_copy_esimple_to_isimple(union acpi_object *user_obj, + union acpi_operand_object **return_obj); + +static acpi_status +acpi_ut_copy_epackage_to_ipackage(union acpi_object *external_object, + union acpi_operand_object **internal_object); + +static acpi_status +acpi_ut_copy_simple_object(union acpi_operand_object *source_desc, + union acpi_operand_object *dest_desc); + +static acpi_status +acpi_ut_copy_ielement_to_eelement(u8 object_type, + union acpi_operand_object *source_object, + union acpi_generic_state *state, + void *context); + +static acpi_status +acpi_ut_copy_ipackage_to_ipackage(union acpi_operand_object *source_obj, + union acpi_operand_object *dest_obj, + struct acpi_walk_state *walk_state); + +/******************************************************************************* + * + * FUNCTION: acpi_ut_copy_isimple_to_esimple + * + * PARAMETERS: internal_object - Source object to be copied + * external_object - Where to return the copied object + * data_space - Where object data is returned (such as + * buffer and string data) + * buffer_space_used - Length of data_space that was used + * + * RETURN: Status + * + * DESCRIPTION: This function is called to copy a simple internal object to + * an external object. + * + * The data_space buffer is assumed to have sufficient space for + * the object. + * + ******************************************************************************/ + +static acpi_status +acpi_ut_copy_isimple_to_esimple(union acpi_operand_object *internal_object, + union acpi_object *external_object, + u8 * data_space, acpi_size * buffer_space_used) +{ + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE(ut_copy_isimple_to_esimple); + + *buffer_space_used = 0; + + /* + * Check for NULL object case (could be an uninitialized + * package element) + */ + if (!internal_object) { + return_ACPI_STATUS(AE_OK); + } + + /* Always clear the external object */ + + ACPI_MEMSET(external_object, 0, sizeof(union acpi_object)); + + /* + * In general, the external object will be the same type as + * the internal object + */ + external_object->type = ACPI_GET_OBJECT_TYPE(internal_object); + + /* However, only a limited number of external types are supported */ + + switch (ACPI_GET_OBJECT_TYPE(internal_object)) { + case ACPI_TYPE_STRING: + + external_object->string.pointer = (char *)data_space; + external_object->string.length = internal_object->string.length; + *buffer_space_used = ACPI_ROUND_UP_TO_NATIVE_WORD((acpi_size) + internal_object-> + string. + length + 1); + + ACPI_MEMCPY((void *)data_space, + (void *)internal_object->string.pointer, + (acpi_size) internal_object->string.length + 1); + break; + + case ACPI_TYPE_BUFFER: + + external_object->buffer.pointer = data_space; + external_object->buffer.length = internal_object->buffer.length; + *buffer_space_used = + ACPI_ROUND_UP_TO_NATIVE_WORD(internal_object->string. + length); + + ACPI_MEMCPY((void *)data_space, + (void *)internal_object->buffer.pointer, + internal_object->buffer.length); + break; + + case ACPI_TYPE_INTEGER: + + external_object->integer.value = internal_object->integer.value; + break; + + case ACPI_TYPE_LOCAL_REFERENCE: + + /* This is an object reference. */ + + switch (internal_object->reference.class) { + case ACPI_REFCLASS_NAME: + + /* + * For namepath, return the object handle ("reference") + * We are referring to the namespace node + */ + external_object->reference.handle = + internal_object->reference.node; + external_object->reference.actual_type = + acpi_ns_get_type(internal_object->reference.node); + break; + + default: + + /* All other reference types are unsupported */ + + return_ACPI_STATUS(AE_TYPE); + } + break; + + case ACPI_TYPE_PROCESSOR: + + external_object->processor.proc_id = + internal_object->processor.proc_id; + external_object->processor.pblk_address = + internal_object->processor.address; + external_object->processor.pblk_length = + internal_object->processor.length; + break; + + case ACPI_TYPE_POWER: + + external_object->power_resource.system_level = + internal_object->power_resource.system_level; + + external_object->power_resource.resource_order = + internal_object->power_resource.resource_order; + break; + + default: + /* + * There is no corresponding external object type + */ + ACPI_ERROR((AE_INFO, + "Unsupported object type, cannot convert to external object: %s", + acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE + (internal_object)))); + + return_ACPI_STATUS(AE_SUPPORT); + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_copy_ielement_to_eelement + * + * PARAMETERS: acpi_pkg_callback + * + * RETURN: Status + * + * DESCRIPTION: Copy one package element to another package element + * + ******************************************************************************/ + +static acpi_status +acpi_ut_copy_ielement_to_eelement(u8 object_type, + union acpi_operand_object *source_object, + union acpi_generic_state *state, + void *context) +{ + acpi_status status = AE_OK; + struct acpi_pkg_info *info = (struct acpi_pkg_info *)context; + acpi_size object_space; + u32 this_index; + union acpi_object *target_object; + + ACPI_FUNCTION_ENTRY(); + + this_index = state->pkg.index; + target_object = (union acpi_object *) + &((union acpi_object *)(state->pkg.dest_object))->package. + elements[this_index]; + + switch (object_type) { + case ACPI_COPY_TYPE_SIMPLE: + + /* + * This is a simple or null object + */ + status = acpi_ut_copy_isimple_to_esimple(source_object, + target_object, + info->free_space, + &object_space); + if (ACPI_FAILURE(status)) { + return (status); + } + break; + + case ACPI_COPY_TYPE_PACKAGE: + + /* + * Build the package object + */ + target_object->type = ACPI_TYPE_PACKAGE; + target_object->package.count = source_object->package.count; + target_object->package.elements = + ACPI_CAST_PTR(union acpi_object, info->free_space); + + /* + * Pass the new package object back to the package walk routine + */ + state->pkg.this_target_obj = target_object; + + /* + * Save space for the array of objects (Package elements) + * update the buffer length counter + */ + object_space = ACPI_ROUND_UP_TO_NATIVE_WORD((acpi_size) + target_object-> + package.count * + sizeof(union + acpi_object)); + break; + + default: + return (AE_BAD_PARAMETER); + } + + info->free_space += object_space; + info->length += object_space; + return (status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_copy_ipackage_to_epackage + * + * PARAMETERS: internal_object - Pointer to the object we are returning + * Buffer - Where the object is returned + * space_used - Where the object length is returned + * + * RETURN: Status + * + * DESCRIPTION: This function is called to place a package object in a user + * buffer. A package object by definition contains other objects. + * + * The buffer is assumed to have sufficient space for the object. + * The caller must have verified the buffer length needed using the + * acpi_ut_get_object_size function before calling this function. + * + ******************************************************************************/ + +static acpi_status +acpi_ut_copy_ipackage_to_epackage(union acpi_operand_object *internal_object, + u8 * buffer, acpi_size * space_used) +{ + union acpi_object *external_object; + acpi_status status; + struct acpi_pkg_info info; + + ACPI_FUNCTION_TRACE(ut_copy_ipackage_to_epackage); + + /* + * First package at head of the buffer + */ + external_object = ACPI_CAST_PTR(union acpi_object, buffer); + + /* + * Free space begins right after the first package + */ + info.length = ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object)); + info.free_space = + buffer + ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object)); + info.object_space = 0; + info.num_packages = 1; + + external_object->type = ACPI_GET_OBJECT_TYPE(internal_object); + external_object->package.count = internal_object->package.count; + external_object->package.elements = ACPI_CAST_PTR(union acpi_object, + info.free_space); + + /* + * Leave room for an array of ACPI_OBJECTS in the buffer + * and move the free space past it + */ + info.length += (acpi_size) external_object->package.count * + ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object)); + info.free_space += external_object->package.count * + ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object)); + + status = acpi_ut_walk_package_tree(internal_object, external_object, + acpi_ut_copy_ielement_to_eelement, + &info); + + *space_used = info.length; + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_copy_iobject_to_eobject + * + * PARAMETERS: internal_object - The internal object to be converted + * buffer_ptr - Where the object is returned + * + * RETURN: Status + * + * DESCRIPTION: This function is called to build an API object to be returned to + * the caller. + * + ******************************************************************************/ + +acpi_status +acpi_ut_copy_iobject_to_eobject(union acpi_operand_object *internal_object, + struct acpi_buffer *ret_buffer) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(ut_copy_iobject_to_eobject); + + if (ACPI_GET_OBJECT_TYPE(internal_object) == ACPI_TYPE_PACKAGE) { + /* + * Package object: Copy all subobjects (including + * nested packages) + */ + status = acpi_ut_copy_ipackage_to_epackage(internal_object, + ret_buffer->pointer, + &ret_buffer->length); + } else { + /* + * Build a simple object (no nested objects) + */ + status = acpi_ut_copy_isimple_to_esimple(internal_object, + ACPI_CAST_PTR(union + acpi_object, + ret_buffer-> + pointer), + ACPI_ADD_PTR(u8, + ret_buffer-> + pointer, + ACPI_ROUND_UP_TO_NATIVE_WORD + (sizeof + (union + acpi_object))), + &ret_buffer->length); + /* + * build simple does not include the object size in the length + * so we add it in here + */ + ret_buffer->length += sizeof(union acpi_object); + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_copy_esimple_to_isimple + * + * PARAMETERS: external_object - The external object to be converted + * ret_internal_object - Where the internal object is returned + * + * RETURN: Status + * + * DESCRIPTION: This function copies an external object to an internal one. + * NOTE: Pointers can be copied, we don't need to copy data. + * (The pointers have to be valid in our address space no matter + * what we do with them!) + * + ******************************************************************************/ + +static acpi_status +acpi_ut_copy_esimple_to_isimple(union acpi_object *external_object, + union acpi_operand_object **ret_internal_object) +{ + union acpi_operand_object *internal_object; + + ACPI_FUNCTION_TRACE(ut_copy_esimple_to_isimple); + + /* + * Simple types supported are: String, Buffer, Integer + */ + switch (external_object->type) { + case ACPI_TYPE_STRING: + case ACPI_TYPE_BUFFER: + case ACPI_TYPE_INTEGER: + case ACPI_TYPE_LOCAL_REFERENCE: + + internal_object = acpi_ut_create_internal_object((u8) + external_object-> + type); + if (!internal_object) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + break; + + case ACPI_TYPE_ANY: /* This is the case for a NULL object */ + + *ret_internal_object = NULL; + return_ACPI_STATUS(AE_OK); + + default: + /* All other types are not supported */ + + ACPI_ERROR((AE_INFO, + "Unsupported object type, cannot convert to internal object: %s", + acpi_ut_get_type_name(external_object->type))); + + return_ACPI_STATUS(AE_SUPPORT); + } + + /* Must COPY string and buffer contents */ + + switch (external_object->type) { + case ACPI_TYPE_STRING: + + internal_object->string.pointer = + ACPI_ALLOCATE_ZEROED((acpi_size) external_object->string. + length + 1); + if (!internal_object->string.pointer) { + goto error_exit; + } + + ACPI_MEMCPY(internal_object->string.pointer, + external_object->string.pointer, + external_object->string.length); + + internal_object->string.length = external_object->string.length; + break; + + case ACPI_TYPE_BUFFER: + + internal_object->buffer.pointer = + ACPI_ALLOCATE_ZEROED(external_object->buffer.length); + if (!internal_object->buffer.pointer) { + goto error_exit; + } + + ACPI_MEMCPY(internal_object->buffer.pointer, + external_object->buffer.pointer, + external_object->buffer.length); + + internal_object->buffer.length = external_object->buffer.length; + + /* Mark buffer data valid */ + + internal_object->buffer.flags |= AOPOBJ_DATA_VALID; + break; + + case ACPI_TYPE_INTEGER: + + internal_object->integer.value = external_object->integer.value; + break; + + case ACPI_TYPE_LOCAL_REFERENCE: + + /* TBD: should validate incoming handle */ + + internal_object->reference.class = ACPI_REFCLASS_NAME; + internal_object->reference.node = + external_object->reference.handle; + break; + + default: + /* Other types can't get here */ + break; + } + + *ret_internal_object = internal_object; + return_ACPI_STATUS(AE_OK); + + error_exit: + acpi_ut_remove_reference(internal_object); + return_ACPI_STATUS(AE_NO_MEMORY); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_copy_epackage_to_ipackage + * + * PARAMETERS: external_object - The external object to be converted + * internal_object - Where the internal object is returned + * + * RETURN: Status + * + * DESCRIPTION: Copy an external package object to an internal package. + * Handles nested packages. + * + ******************************************************************************/ + +static acpi_status +acpi_ut_copy_epackage_to_ipackage(union acpi_object *external_object, + union acpi_operand_object **internal_object) +{ + acpi_status status = AE_OK; + union acpi_operand_object *package_object; + union acpi_operand_object **package_elements; + u32 i; + + ACPI_FUNCTION_TRACE(ut_copy_epackage_to_ipackage); + + /* Create the package object */ + + package_object = + acpi_ut_create_package_object(external_object->package.count); + if (!package_object) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + package_elements = package_object->package.elements; + + /* + * Recursive implementation. Probably ok, since nested external packages + * as parameters should be very rare. + */ + for (i = 0; i < external_object->package.count; i++) { + status = + acpi_ut_copy_eobject_to_iobject(&external_object->package. + elements[i], + &package_elements[i]); + if (ACPI_FAILURE(status)) { + + /* Truncate package and delete it */ + + package_object->package.count = i; + package_elements[i] = NULL; + acpi_ut_remove_reference(package_object); + return_ACPI_STATUS(status); + } + } + + /* Mark package data valid */ + + package_object->package.flags |= AOPOBJ_DATA_VALID; + + *internal_object = package_object; + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_copy_eobject_to_iobject + * + * PARAMETERS: external_object - The external object to be converted + * internal_object - Where the internal object is returned + * + * RETURN: Status - the status of the call + * + * DESCRIPTION: Converts an external object to an internal object. + * + ******************************************************************************/ + +acpi_status +acpi_ut_copy_eobject_to_iobject(union acpi_object *external_object, + union acpi_operand_object **internal_object) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(ut_copy_eobject_to_iobject); + + if (external_object->type == ACPI_TYPE_PACKAGE) { + status = + acpi_ut_copy_epackage_to_ipackage(external_object, + internal_object); + } else { + /* + * Build a simple object (no nested objects) + */ + status = + acpi_ut_copy_esimple_to_isimple(external_object, + internal_object); + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_copy_simple_object + * + * PARAMETERS: source_desc - The internal object to be copied + * dest_desc - New target object + * + * RETURN: Status + * + * DESCRIPTION: Simple copy of one internal object to another. Reference count + * of the destination object is preserved. + * + ******************************************************************************/ + +static acpi_status +acpi_ut_copy_simple_object(union acpi_operand_object *source_desc, + union acpi_operand_object *dest_desc) +{ + u16 reference_count; + union acpi_operand_object *next_object; + + /* Save fields from destination that we don't want to overwrite */ + + reference_count = dest_desc->common.reference_count; + next_object = dest_desc->common.next_object; + + /* Copy the entire source object over the destination object */ + + ACPI_MEMCPY((char *)dest_desc, (char *)source_desc, + sizeof(union acpi_operand_object)); + + /* Restore the saved fields */ + + dest_desc->common.reference_count = reference_count; + dest_desc->common.next_object = next_object; + + /* New object is not static, regardless of source */ + + dest_desc->common.flags &= ~AOPOBJ_STATIC_POINTER; + + /* Handle the objects with extra data */ + + switch (ACPI_GET_OBJECT_TYPE(dest_desc)) { + case ACPI_TYPE_BUFFER: + /* + * Allocate and copy the actual buffer if and only if: + * 1) There is a valid buffer pointer + * 2) The buffer has a length > 0 + */ + if ((source_desc->buffer.pointer) && + (source_desc->buffer.length)) { + dest_desc->buffer.pointer = + ACPI_ALLOCATE(source_desc->buffer.length); + if (!dest_desc->buffer.pointer) { + return (AE_NO_MEMORY); + } + + /* Copy the actual buffer data */ + + ACPI_MEMCPY(dest_desc->buffer.pointer, + source_desc->buffer.pointer, + source_desc->buffer.length); + } + break; + + case ACPI_TYPE_STRING: + /* + * Allocate and copy the actual string if and only if: + * 1) There is a valid string pointer + * (Pointer to a NULL string is allowed) + */ + if (source_desc->string.pointer) { + dest_desc->string.pointer = + ACPI_ALLOCATE((acpi_size) source_desc->string. + length + 1); + if (!dest_desc->string.pointer) { + return (AE_NO_MEMORY); + } + + /* Copy the actual string data */ + + ACPI_MEMCPY(dest_desc->string.pointer, + source_desc->string.pointer, + (acpi_size) source_desc->string.length + 1); + } + break; + + case ACPI_TYPE_LOCAL_REFERENCE: + /* + * We copied the reference object, so we now must add a reference + * to the object pointed to by the reference + * + * DDBHandle reference (from Load/load_table) is a special reference, + * it does not have a Reference.Object, so does not need to + * increase the reference count + */ + if (source_desc->reference.class == ACPI_REFCLASS_TABLE) { + break; + } + + acpi_ut_add_reference(source_desc->reference.object); + break; + + case ACPI_TYPE_REGION: + /* + * We copied the Region Handler, so we now must add a reference + */ + if (dest_desc->region.handler) { + acpi_ut_add_reference(dest_desc->region.handler); + } + break; + + default: + /* Nothing to do for other simple objects */ + break; + } + + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_copy_ielement_to_ielement + * + * PARAMETERS: acpi_pkg_callback + * + * RETURN: Status + * + * DESCRIPTION: Copy one package element to another package element + * + ******************************************************************************/ + +static acpi_status +acpi_ut_copy_ielement_to_ielement(u8 object_type, + union acpi_operand_object *source_object, + union acpi_generic_state *state, + void *context) +{ + acpi_status status = AE_OK; + u32 this_index; + union acpi_operand_object **this_target_ptr; + union acpi_operand_object *target_object; + + ACPI_FUNCTION_ENTRY(); + + this_index = state->pkg.index; + this_target_ptr = (union acpi_operand_object **) + &state->pkg.dest_object->package.elements[this_index]; + + switch (object_type) { + case ACPI_COPY_TYPE_SIMPLE: + + /* A null source object indicates a (legal) null package element */ + + if (source_object) { + /* + * This is a simple object, just copy it + */ + target_object = + acpi_ut_create_internal_object(ACPI_GET_OBJECT_TYPE + (source_object)); + if (!target_object) { + return (AE_NO_MEMORY); + } + + status = + acpi_ut_copy_simple_object(source_object, + target_object); + if (ACPI_FAILURE(status)) { + goto error_exit; + } + + *this_target_ptr = target_object; + } else { + /* Pass through a null element */ + + *this_target_ptr = NULL; + } + break; + + case ACPI_COPY_TYPE_PACKAGE: + + /* + * This object is a package - go down another nesting level + * Create and build the package object + */ + target_object = + acpi_ut_create_package_object(source_object->package.count); + if (!target_object) { + return (AE_NO_MEMORY); + } + + target_object->common.flags = source_object->common.flags; + + /* Pass the new package object back to the package walk routine */ + + state->pkg.this_target_obj = target_object; + + /* Store the object pointer in the parent package object */ + + *this_target_ptr = target_object; + break; + + default: + return (AE_BAD_PARAMETER); + } + + return (status); + + error_exit: + acpi_ut_remove_reference(target_object); + return (status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_copy_ipackage_to_ipackage + * + * PARAMETERS: *source_obj - Pointer to the source package object + * *dest_obj - Where the internal object is returned + * + * RETURN: Status - the status of the call + * + * DESCRIPTION: This function is called to copy an internal package object + * into another internal package object. + * + ******************************************************************************/ + +static acpi_status +acpi_ut_copy_ipackage_to_ipackage(union acpi_operand_object *source_obj, + union acpi_operand_object *dest_obj, + struct acpi_walk_state *walk_state) +{ + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE(ut_copy_ipackage_to_ipackage); + + dest_obj->common.type = ACPI_GET_OBJECT_TYPE(source_obj); + dest_obj->common.flags = source_obj->common.flags; + dest_obj->package.count = source_obj->package.count; + + /* + * Create the object array and walk the source package tree + */ + dest_obj->package.elements = ACPI_ALLOCATE_ZEROED(((acpi_size) + source_obj->package. + count + + 1) * sizeof(void *)); + if (!dest_obj->package.elements) { + ACPI_ERROR((AE_INFO, "Package allocation failure")); + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* + * Copy the package element-by-element by walking the package "tree". + * This handles nested packages of arbitrary depth. + */ + status = acpi_ut_walk_package_tree(source_obj, dest_obj, + acpi_ut_copy_ielement_to_ielement, + walk_state); + if (ACPI_FAILURE(status)) { + + /* On failure, delete the destination package object */ + + acpi_ut_remove_reference(dest_obj); + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_copy_iobject_to_iobject + * + * PARAMETERS: walk_state - Current walk state + * source_desc - The internal object to be copied + * dest_desc - Where the copied object is returned + * + * RETURN: Status + * + * DESCRIPTION: Copy an internal object to a new internal object + * + ******************************************************************************/ + +acpi_status +acpi_ut_copy_iobject_to_iobject(union acpi_operand_object *source_desc, + union acpi_operand_object **dest_desc, + struct acpi_walk_state *walk_state) +{ + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE(ut_copy_iobject_to_iobject); + + /* Create the top level object */ + + *dest_desc = + acpi_ut_create_internal_object(ACPI_GET_OBJECT_TYPE(source_desc)); + if (!*dest_desc) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* Copy the object and possible subobjects */ + + if (ACPI_GET_OBJECT_TYPE(source_desc) == ACPI_TYPE_PACKAGE) { + status = + acpi_ut_copy_ipackage_to_ipackage(source_desc, *dest_desc, + walk_state); + } else { + status = acpi_ut_copy_simple_object(source_desc, *dest_desc); + } + + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c new file mode 100644 index 000000000000..9a3538c497d0 --- /dev/null +++ b/drivers/acpi/acpica/utdebug.c @@ -0,0 +1,651 @@ +/****************************************************************************** + * + * Module Name: utdebug - Debug print routines + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include + +#define _COMPONENT ACPI_UTILITIES +ACPI_MODULE_NAME("utdebug") +#ifdef ACPI_DEBUG_OUTPUT +static acpi_thread_id acpi_gbl_prev_thread_id; +static char *acpi_gbl_fn_entry_str = "----Entry"; +static char *acpi_gbl_fn_exit_str = "----Exit-"; + +/* Local prototypes */ + +static const char *acpi_ut_trim_function_name(const char *function_name); + +/******************************************************************************* + * + * FUNCTION: acpi_ut_init_stack_ptr_trace + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Save the current CPU stack pointer at subsystem startup + * + ******************************************************************************/ + +void acpi_ut_init_stack_ptr_trace(void) +{ + acpi_size current_sp; + + acpi_gbl_entry_stack_pointer = ¤t_sp; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_track_stack_ptr + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Save the current CPU stack pointer + * + ******************************************************************************/ + +void acpi_ut_track_stack_ptr(void) +{ + acpi_size current_sp; + + if (¤t_sp < acpi_gbl_lowest_stack_pointer) { + acpi_gbl_lowest_stack_pointer = ¤t_sp; + } + + if (acpi_gbl_nesting_level > acpi_gbl_deepest_nesting) { + acpi_gbl_deepest_nesting = acpi_gbl_nesting_level; + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_trim_function_name + * + * PARAMETERS: function_name - Ascii string containing a procedure name + * + * RETURN: Updated pointer to the function name + * + * DESCRIPTION: Remove the "Acpi" prefix from the function name, if present. + * This allows compiler macros such as __func__ to be used + * with no change to the debug output. + * + ******************************************************************************/ + +static const char *acpi_ut_trim_function_name(const char *function_name) +{ + + /* All Function names are longer than 4 chars, check is safe */ + + if (*(ACPI_CAST_PTR(u32, function_name)) == ACPI_PREFIX_MIXED) { + + /* This is the case where the original source has not been modified */ + + return (function_name + 4); + } + + if (*(ACPI_CAST_PTR(u32, function_name)) == ACPI_PREFIX_LOWER) { + + /* This is the case where the source has been 'linuxized' */ + + return (function_name + 5); + } + + return (function_name); +} + +/******************************************************************************* + * + * FUNCTION: acpi_debug_print + * + * PARAMETERS: requested_debug_level - Requested debug print level + * line_number - Caller's line number (for error output) + * function_name - Caller's procedure name + * module_name - Caller's module name + * component_id - Caller's component ID + * Format - Printf format field + * ... - Optional printf arguments + * + * RETURN: None + * + * DESCRIPTION: Print error message with prefix consisting of the module name, + * line number, and component ID. + * + ******************************************************************************/ + +void ACPI_INTERNAL_VAR_XFACE +acpi_debug_print(u32 requested_debug_level, + u32 line_number, + const char *function_name, + const char *module_name, + u32 component_id, const char *format, ...) +{ + acpi_thread_id thread_id; + va_list args; + + /* + * Stay silent if the debug level or component ID is disabled + */ + if (!(requested_debug_level & acpi_dbg_level) || + !(component_id & acpi_dbg_layer)) { + return; + } + + /* + * Thread tracking and context switch notification + */ + thread_id = acpi_os_get_thread_id(); + if (thread_id != acpi_gbl_prev_thread_id) { + if (ACPI_LV_THREADS & acpi_dbg_level) { + acpi_os_printf + ("\n**** Context Switch from TID %lX to TID %lX ****\n\n", + (unsigned long)acpi_gbl_prev_thread_id, + (unsigned long)thread_id); + } + + acpi_gbl_prev_thread_id = thread_id; + } + + /* + * Display the module name, current line number, thread ID (if requested), + * current procedure nesting level, and the current procedure name + */ + acpi_os_printf("%8s-%04ld ", module_name, line_number); + + if (ACPI_LV_THREADS & acpi_dbg_level) { + acpi_os_printf("[%04lX] ", (unsigned long)thread_id); + } + + acpi_os_printf("[%02ld] %-22.22s: ", + acpi_gbl_nesting_level, + acpi_ut_trim_function_name(function_name)); + + va_start(args, format); + acpi_os_vprintf(format, args); + va_end(args); +} + +ACPI_EXPORT_SYMBOL(acpi_debug_print) + +/******************************************************************************* + * + * FUNCTION: acpi_debug_print_raw + * + * PARAMETERS: requested_debug_level - Requested debug print level + * line_number - Caller's line number + * function_name - Caller's procedure name + * module_name - Caller's module name + * component_id - Caller's component ID + * Format - Printf format field + * ... - Optional printf arguments + * + * RETURN: None + * + * DESCRIPTION: Print message with no headers. Has same interface as + * debug_print so that the same macros can be used. + * + ******************************************************************************/ +void ACPI_INTERNAL_VAR_XFACE +acpi_debug_print_raw(u32 requested_debug_level, + u32 line_number, + const char *function_name, + const char *module_name, + u32 component_id, const char *format, ...) +{ + va_list args; + + if (!(requested_debug_level & acpi_dbg_level) || + !(component_id & acpi_dbg_layer)) { + return; + } + + va_start(args, format); + acpi_os_vprintf(format, args); + va_end(args); +} + +ACPI_EXPORT_SYMBOL(acpi_debug_print_raw) + +/******************************************************************************* + * + * FUNCTION: acpi_ut_trace + * + * PARAMETERS: line_number - Caller's line number + * function_name - Caller's procedure name + * module_name - Caller's module name + * component_id - Caller's component ID + * + * RETURN: None + * + * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is + * set in debug_level + * + ******************************************************************************/ +void +acpi_ut_trace(u32 line_number, + const char *function_name, + const char *module_name, u32 component_id) +{ + + acpi_gbl_nesting_level++; + acpi_ut_track_stack_ptr(); + + acpi_debug_print(ACPI_LV_FUNCTIONS, + line_number, function_name, module_name, component_id, + "%s\n", acpi_gbl_fn_entry_str); +} + +ACPI_EXPORT_SYMBOL(acpi_ut_trace) + +/******************************************************************************* + * + * FUNCTION: acpi_ut_trace_ptr + * + * PARAMETERS: line_number - Caller's line number + * function_name - Caller's procedure name + * module_name - Caller's module name + * component_id - Caller's component ID + * Pointer - Pointer to display + * + * RETURN: None + * + * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is + * set in debug_level + * + ******************************************************************************/ +void +acpi_ut_trace_ptr(u32 line_number, + const char *function_name, + const char *module_name, u32 component_id, void *pointer) +{ + acpi_gbl_nesting_level++; + acpi_ut_track_stack_ptr(); + + acpi_debug_print(ACPI_LV_FUNCTIONS, + line_number, function_name, module_name, component_id, + "%s %p\n", acpi_gbl_fn_entry_str, pointer); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_trace_str + * + * PARAMETERS: line_number - Caller's line number + * function_name - Caller's procedure name + * module_name - Caller's module name + * component_id - Caller's component ID + * String - Additional string to display + * + * RETURN: None + * + * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is + * set in debug_level + * + ******************************************************************************/ + +void +acpi_ut_trace_str(u32 line_number, + const char *function_name, + const char *module_name, u32 component_id, char *string) +{ + + acpi_gbl_nesting_level++; + acpi_ut_track_stack_ptr(); + + acpi_debug_print(ACPI_LV_FUNCTIONS, + line_number, function_name, module_name, component_id, + "%s %s\n", acpi_gbl_fn_entry_str, string); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_trace_u32 + * + * PARAMETERS: line_number - Caller's line number + * function_name - Caller's procedure name + * module_name - Caller's module name + * component_id - Caller's component ID + * Integer - Integer to display + * + * RETURN: None + * + * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is + * set in debug_level + * + ******************************************************************************/ + +void +acpi_ut_trace_u32(u32 line_number, + const char *function_name, + const char *module_name, u32 component_id, u32 integer) +{ + + acpi_gbl_nesting_level++; + acpi_ut_track_stack_ptr(); + + acpi_debug_print(ACPI_LV_FUNCTIONS, + line_number, function_name, module_name, component_id, + "%s %08X\n", acpi_gbl_fn_entry_str, integer); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_exit + * + * PARAMETERS: line_number - Caller's line number + * function_name - Caller's procedure name + * module_name - Caller's module name + * component_id - Caller's component ID + * + * RETURN: None + * + * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is + * set in debug_level + * + ******************************************************************************/ + +void +acpi_ut_exit(u32 line_number, + const char *function_name, + const char *module_name, u32 component_id) +{ + + acpi_debug_print(ACPI_LV_FUNCTIONS, + line_number, function_name, module_name, component_id, + "%s\n", acpi_gbl_fn_exit_str); + + acpi_gbl_nesting_level--; +} + +ACPI_EXPORT_SYMBOL(acpi_ut_exit) + +/******************************************************************************* + * + * FUNCTION: acpi_ut_status_exit + * + * PARAMETERS: line_number - Caller's line number + * function_name - Caller's procedure name + * module_name - Caller's module name + * component_id - Caller's component ID + * Status - Exit status code + * + * RETURN: None + * + * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is + * set in debug_level. Prints exit status also. + * + ******************************************************************************/ +void +acpi_ut_status_exit(u32 line_number, + const char *function_name, + const char *module_name, + u32 component_id, acpi_status status) +{ + + if (ACPI_SUCCESS(status)) { + acpi_debug_print(ACPI_LV_FUNCTIONS, + line_number, function_name, module_name, + component_id, "%s %s\n", acpi_gbl_fn_exit_str, + acpi_format_exception(status)); + } else { + acpi_debug_print(ACPI_LV_FUNCTIONS, + line_number, function_name, module_name, + component_id, "%s ****Exception****: %s\n", + acpi_gbl_fn_exit_str, + acpi_format_exception(status)); + } + + acpi_gbl_nesting_level--; +} + +ACPI_EXPORT_SYMBOL(acpi_ut_status_exit) + +/******************************************************************************* + * + * FUNCTION: acpi_ut_value_exit + * + * PARAMETERS: line_number - Caller's line number + * function_name - Caller's procedure name + * module_name - Caller's module name + * component_id - Caller's component ID + * Value - Value to be printed with exit msg + * + * RETURN: None + * + * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is + * set in debug_level. Prints exit value also. + * + ******************************************************************************/ +void +acpi_ut_value_exit(u32 line_number, + const char *function_name, + const char *module_name, + u32 component_id, acpi_integer value) +{ + + acpi_debug_print(ACPI_LV_FUNCTIONS, + line_number, function_name, module_name, component_id, + "%s %8.8X%8.8X\n", acpi_gbl_fn_exit_str, + ACPI_FORMAT_UINT64(value)); + + acpi_gbl_nesting_level--; +} + +ACPI_EXPORT_SYMBOL(acpi_ut_value_exit) + +/******************************************************************************* + * + * FUNCTION: acpi_ut_ptr_exit + * + * PARAMETERS: line_number - Caller's line number + * function_name - Caller's procedure name + * module_name - Caller's module name + * component_id - Caller's component ID + * Ptr - Pointer to display + * + * RETURN: None + * + * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is + * set in debug_level. Prints exit value also. + * + ******************************************************************************/ +void +acpi_ut_ptr_exit(u32 line_number, + const char *function_name, + const char *module_name, u32 component_id, u8 *ptr) +{ + + acpi_debug_print(ACPI_LV_FUNCTIONS, + line_number, function_name, module_name, component_id, + "%s %p\n", acpi_gbl_fn_exit_str, ptr); + + acpi_gbl_nesting_level--; +} + +#endif + +/******************************************************************************* + * + * FUNCTION: acpi_ut_dump_buffer + * + * PARAMETERS: Buffer - Buffer to dump + * Count - Amount to dump, in bytes + * Display - BYTE, WORD, DWORD, or QWORD display + * component_iD - Caller's component ID + * + * RETURN: None + * + * DESCRIPTION: Generic dump buffer in both hex and ascii. + * + ******************************************************************************/ + +void acpi_ut_dump_buffer2(u8 * buffer, u32 count, u32 display) +{ + u32 i = 0; + u32 j; + u32 temp32; + u8 buf_char; + + if (!buffer) { + acpi_os_printf("Null Buffer Pointer in DumpBuffer!\n"); + return; + } + + if ((count < 4) || (count & 0x01)) { + display = DB_BYTE_DISPLAY; + } + + /* Nasty little dump buffer routine! */ + + while (i < count) { + + /* Print current offset */ + + acpi_os_printf("%6.4X: ", i); + + /* Print 16 hex chars */ + + for (j = 0; j < 16;) { + if (i + j >= count) { + + /* Dump fill spaces */ + + acpi_os_printf("%*s", ((display * 2) + 1), " "); + j += display; + continue; + } + + switch (display) { + case DB_BYTE_DISPLAY: + default: /* Default is BYTE display */ + + acpi_os_printf("%02X ", + buffer[(acpi_size) i + j]); + break; + + case DB_WORD_DISPLAY: + + ACPI_MOVE_16_TO_32(&temp32, + &buffer[(acpi_size) i + j]); + acpi_os_printf("%04X ", temp32); + break; + + case DB_DWORD_DISPLAY: + + ACPI_MOVE_32_TO_32(&temp32, + &buffer[(acpi_size) i + j]); + acpi_os_printf("%08X ", temp32); + break; + + case DB_QWORD_DISPLAY: + + ACPI_MOVE_32_TO_32(&temp32, + &buffer[(acpi_size) i + j]); + acpi_os_printf("%08X", temp32); + + ACPI_MOVE_32_TO_32(&temp32, + &buffer[(acpi_size) i + j + + 4]); + acpi_os_printf("%08X ", temp32); + break; + } + + j += display; + } + + /* + * Print the ASCII equivalent characters but watch out for the bad + * unprintable ones (printable chars are 0x20 through 0x7E) + */ + acpi_os_printf(" "); + for (j = 0; j < 16; j++) { + if (i + j >= count) { + acpi_os_printf("\n"); + return; + } + + buf_char = buffer[(acpi_size) i + j]; + if (ACPI_IS_PRINT(buf_char)) { + acpi_os_printf("%c", buf_char); + } else { + acpi_os_printf("."); + } + } + + /* Done with that line. */ + + acpi_os_printf("\n"); + i += 16; + } + + return; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_dump_buffer + * + * PARAMETERS: Buffer - Buffer to dump + * Count - Amount to dump, in bytes + * Display - BYTE, WORD, DWORD, or QWORD display + * component_iD - Caller's component ID + * + * RETURN: None + * + * DESCRIPTION: Generic dump buffer in both hex and ascii. + * + ******************************************************************************/ + +void acpi_ut_dump_buffer(u8 * buffer, u32 count, u32 display, u32 component_id) +{ + + /* Only dump the buffer if tracing is enabled */ + + if (!((ACPI_LV_TABLES & acpi_dbg_level) && + (component_id & acpi_dbg_layer))) { + return; + } + + acpi_ut_dump_buffer2(buffer, count, display); +} diff --git a/drivers/acpi/acpica/utdelete.c b/drivers/acpi/acpica/utdelete.c new file mode 100644 index 000000000000..5b4e3b1a7523 --- /dev/null +++ b/drivers/acpi/acpica/utdelete.c @@ -0,0 +1,677 @@ +/******************************************************************************* + * + * Module Name: utdelete - object deletion and reference count utilities + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_UTILITIES +ACPI_MODULE_NAME("utdelete") + +/* Local prototypes */ +static void acpi_ut_delete_internal_obj(union acpi_operand_object *object); + +static void +acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action); + +/******************************************************************************* + * + * FUNCTION: acpi_ut_delete_internal_obj + * + * PARAMETERS: Object - Object to be deleted + * + * RETURN: None + * + * DESCRIPTION: Low level object deletion, after reference counts have been + * updated (All reference counts, including sub-objects!) + * + ******************************************************************************/ + +static void acpi_ut_delete_internal_obj(union acpi_operand_object *object) +{ + void *obj_pointer = NULL; + union acpi_operand_object *handler_desc; + union acpi_operand_object *second_desc; + union acpi_operand_object *next_desc; + + ACPI_FUNCTION_TRACE_PTR(ut_delete_internal_obj, object); + + if (!object) { + return_VOID; + } + + /* + * Must delete or free any pointers within the object that are not + * actual ACPI objects (for example, a raw buffer pointer). + */ + switch (ACPI_GET_OBJECT_TYPE(object)) { + case ACPI_TYPE_STRING: + + ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, + "**** String %p, ptr %p\n", object, + object->string.pointer)); + + /* Free the actual string buffer */ + + if (!(object->common.flags & AOPOBJ_STATIC_POINTER)) { + + /* But only if it is NOT a pointer into an ACPI table */ + + obj_pointer = object->string.pointer; + } + break; + + case ACPI_TYPE_BUFFER: + + ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, + "**** Buffer %p, ptr %p\n", object, + object->buffer.pointer)); + + /* Free the actual buffer */ + + if (!(object->common.flags & AOPOBJ_STATIC_POINTER)) { + + /* But only if it is NOT a pointer into an ACPI table */ + + obj_pointer = object->buffer.pointer; + } + break; + + case ACPI_TYPE_PACKAGE: + + ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, + " **** Package of count %X\n", + object->package.count)); + + /* + * Elements of the package are not handled here, they are deleted + * separately + */ + + /* Free the (variable length) element pointer array */ + + obj_pointer = object->package.elements; + break; + + /* + * These objects have a possible list of notify handlers. + * Device object also may have a GPE block. + */ + case ACPI_TYPE_DEVICE: + + if (object->device.gpe_block) { + (void)acpi_ev_delete_gpe_block(object->device. + gpe_block); + } + + /*lint -fallthrough */ + + case ACPI_TYPE_PROCESSOR: + case ACPI_TYPE_THERMAL: + + /* Walk the notify handler list for this object */ + + handler_desc = object->common_notify.handler; + while (handler_desc) { + next_desc = handler_desc->address_space.next; + acpi_ut_remove_reference(handler_desc); + handler_desc = next_desc; + } + break; + + case ACPI_TYPE_MUTEX: + + ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, + "***** Mutex %p, OS Mutex %p\n", + object, object->mutex.os_mutex)); + + if (object == acpi_gbl_global_lock_mutex) { + + /* Global Lock has extra semaphore */ + + (void) + acpi_os_delete_semaphore + (acpi_gbl_global_lock_semaphore); + acpi_gbl_global_lock_semaphore = NULL; + + acpi_os_delete_mutex(object->mutex.os_mutex); + acpi_gbl_global_lock_mutex = NULL; + } else { + acpi_ex_unlink_mutex(object); + acpi_os_delete_mutex(object->mutex.os_mutex); + } + break; + + case ACPI_TYPE_EVENT: + + ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, + "***** Event %p, OS Semaphore %p\n", + object, object->event.os_semaphore)); + + (void)acpi_os_delete_semaphore(object->event.os_semaphore); + object->event.os_semaphore = NULL; + break; + + case ACPI_TYPE_METHOD: + + ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, + "***** Method %p\n", object)); + + /* Delete the method mutex if it exists */ + + if (object->method.mutex) { + acpi_os_delete_mutex(object->method.mutex->mutex. + os_mutex); + acpi_ut_delete_object_desc(object->method.mutex); + object->method.mutex = NULL; + } + break; + + case ACPI_TYPE_REGION: + + ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, + "***** Region %p\n", object)); + + second_desc = acpi_ns_get_secondary_object(object); + if (second_desc) { + /* + * Free the region_context if and only if the handler is one of the + * default handlers -- and therefore, we created the context object + * locally, it was not created by an external caller. + */ + handler_desc = object->region.handler; + if (handler_desc) { + if (handler_desc->address_space.handler_flags & + ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) { + + /* Deactivate region and free region context */ + + if (handler_desc->address_space.setup) { + (void)handler_desc-> + address_space.setup(object, + ACPI_REGION_DEACTIVATE, + handler_desc-> + address_space. + context, + &second_desc-> + extra. + region_context); + } + } + + acpi_ut_remove_reference(handler_desc); + } + + /* Now we can free the Extra object */ + + acpi_ut_delete_object_desc(second_desc); + } + break; + + case ACPI_TYPE_BUFFER_FIELD: + + ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, + "***** Buffer Field %p\n", object)); + + second_desc = acpi_ns_get_secondary_object(object); + if (second_desc) { + acpi_ut_delete_object_desc(second_desc); + } + break; + + case ACPI_TYPE_LOCAL_BANK_FIELD: + + ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, + "***** Bank Field %p\n", object)); + + second_desc = acpi_ns_get_secondary_object(object); + if (second_desc) { + acpi_ut_delete_object_desc(second_desc); + } + break; + + default: + break; + } + + /* Free any allocated memory (pointer within the object) found above */ + + if (obj_pointer) { + ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, + "Deleting Object Subptr %p\n", obj_pointer)); + ACPI_FREE(obj_pointer); + } + + /* Now the object can be safely deleted */ + + ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "Deleting Object %p [%s]\n", + object, acpi_ut_get_object_type_name(object))); + + acpi_ut_delete_object_desc(object); + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_delete_internal_object_list + * + * PARAMETERS: obj_list - Pointer to the list to be deleted + * + * RETURN: None + * + * DESCRIPTION: This function deletes an internal object list, including both + * simple objects and package objects + * + ******************************************************************************/ + +void acpi_ut_delete_internal_object_list(union acpi_operand_object **obj_list) +{ + union acpi_operand_object **internal_obj; + + ACPI_FUNCTION_TRACE(ut_delete_internal_object_list); + + /* Walk the null-terminated internal list */ + + for (internal_obj = obj_list; *internal_obj; internal_obj++) { + acpi_ut_remove_reference(*internal_obj); + } + + /* Free the combined parameter pointer list and object array */ + + ACPI_FREE(obj_list); + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_update_ref_count + * + * PARAMETERS: Object - Object whose ref count is to be updated + * Action - What to do + * + * RETURN: New ref count + * + * DESCRIPTION: Modify the ref count and return it. + * + ******************************************************************************/ + +static void +acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action) +{ + u16 count; + u16 new_count; + + ACPI_FUNCTION_NAME(ut_update_ref_count); + + if (!object) { + return; + } + + count = object->common.reference_count; + new_count = count; + + /* + * Perform the reference count action (increment, decrement, force delete) + */ + switch (action) { + case REF_INCREMENT: + + new_count++; + object->common.reference_count = new_count; + + ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, + "Obj %p Refs=%X, [Incremented]\n", + object, new_count)); + break; + + case REF_DECREMENT: + + if (count < 1) { + ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, + "Obj %p Refs=%X, can't decrement! (Set to 0)\n", + object, new_count)); + + new_count = 0; + } else { + new_count--; + + ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, + "Obj %p Refs=%X, [Decremented]\n", + object, new_count)); + } + + if (ACPI_GET_OBJECT_TYPE(object) == ACPI_TYPE_METHOD) { + ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, + "Method Obj %p Refs=%X, [Decremented]\n", + object, new_count)); + } + + object->common.reference_count = new_count; + if (new_count == 0) { + acpi_ut_delete_internal_obj(object); + } + break; + + case REF_FORCE_DELETE: + + ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, + "Obj %p Refs=%X, Force delete! (Set to 0)\n", + object, count)); + + new_count = 0; + object->common.reference_count = new_count; + acpi_ut_delete_internal_obj(object); + break; + + default: + + ACPI_ERROR((AE_INFO, "Unknown action (%X)", action)); + break; + } + + /* + * Sanity check the reference count, for debug purposes only. + * (A deleted object will have a huge reference count) + */ + if (count > ACPI_MAX_REFERENCE_COUNT) { + ACPI_WARNING((AE_INFO, + "Large Reference Count (%X) in object %p", count, + object)); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_update_object_reference + * + * PARAMETERS: Object - Increment ref count for this object + * and all sub-objects + * Action - Either REF_INCREMENT or REF_DECREMENT or + * REF_FORCE_DELETE + * + * RETURN: Status + * + * DESCRIPTION: Increment the object reference count + * + * Object references are incremented when: + * 1) An object is attached to a Node (namespace object) + * 2) An object is copied (all subobjects must be incremented) + * + * Object references are decremented when: + * 1) An object is detached from an Node + * + ******************************************************************************/ + +acpi_status +acpi_ut_update_object_reference(union acpi_operand_object *object, u16 action) +{ + acpi_status status = AE_OK; + union acpi_generic_state *state_list = NULL; + union acpi_operand_object *next_object = NULL; + union acpi_generic_state *state; + u32 i; + + ACPI_FUNCTION_TRACE_PTR(ut_update_object_reference, object); + + while (object) { + + /* Make sure that this isn't a namespace handle */ + + if (ACPI_GET_DESCRIPTOR_TYPE(object) == ACPI_DESC_TYPE_NAMED) { + ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, + "Object %p is NS handle\n", object)); + return_ACPI_STATUS(AE_OK); + } + + /* + * All sub-objects must have their reference count incremented also. + * Different object types have different subobjects. + */ + switch (ACPI_GET_OBJECT_TYPE(object)) { + case ACPI_TYPE_DEVICE: + case ACPI_TYPE_PROCESSOR: + case ACPI_TYPE_POWER: + case ACPI_TYPE_THERMAL: + + /* Update the notify objects for these types (if present) */ + + acpi_ut_update_ref_count(object->common_notify. + system_notify, action); + acpi_ut_update_ref_count(object->common_notify. + device_notify, action); + break; + + case ACPI_TYPE_PACKAGE: + /* + * We must update all the sub-objects of the package, + * each of whom may have their own sub-objects. + */ + for (i = 0; i < object->package.count; i++) { + /* + * Push each element onto the stack for later processing. + * Note: There can be null elements within the package, + * these are simply ignored + */ + status = + acpi_ut_create_update_state_and_push + (object->package.elements[i], action, + &state_list); + if (ACPI_FAILURE(status)) { + goto error_exit; + } + } + break; + + case ACPI_TYPE_BUFFER_FIELD: + + next_object = object->buffer_field.buffer_obj; + break; + + case ACPI_TYPE_LOCAL_REGION_FIELD: + + next_object = object->field.region_obj; + break; + + case ACPI_TYPE_LOCAL_BANK_FIELD: + + next_object = object->bank_field.bank_obj; + status = + acpi_ut_create_update_state_and_push(object-> + bank_field. + region_obj, + action, + &state_list); + if (ACPI_FAILURE(status)) { + goto error_exit; + } + break; + + case ACPI_TYPE_LOCAL_INDEX_FIELD: + + next_object = object->index_field.index_obj; + status = + acpi_ut_create_update_state_and_push(object-> + index_field. + data_obj, + action, + &state_list); + if (ACPI_FAILURE(status)) { + goto error_exit; + } + break; + + case ACPI_TYPE_LOCAL_REFERENCE: + /* + * The target of an Index (a package, string, or buffer) or a named + * reference must track changes to the ref count of the index or + * target object. + */ + if ((object->reference.class == ACPI_REFCLASS_INDEX) || + (object->reference.class == ACPI_REFCLASS_NAME)) { + next_object = object->reference.object; + } + break; + + case ACPI_TYPE_REGION: + default: + break; /* No subobjects for all other types */ + } + + /* + * Now we can update the count in the main object. This can only + * happen after we update the sub-objects in case this causes the + * main object to be deleted. + */ + acpi_ut_update_ref_count(object, action); + object = NULL; + + /* Move on to the next object to be updated */ + + if (next_object) { + object = next_object; + next_object = NULL; + } else if (state_list) { + state = acpi_ut_pop_generic_state(&state_list); + object = state->update.object; + acpi_ut_delete_generic_state(state); + } + } + + return_ACPI_STATUS(AE_OK); + + error_exit: + + ACPI_EXCEPTION((AE_INFO, status, + "Could not update object reference count")); + + /* Free any stacked Update State objects */ + + while (state_list) { + state = acpi_ut_pop_generic_state(&state_list); + acpi_ut_delete_generic_state(state); + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_add_reference + * + * PARAMETERS: Object - Object whose reference count is to be + * incremented + * + * RETURN: None + * + * DESCRIPTION: Add one reference to an ACPI object + * + ******************************************************************************/ + +void acpi_ut_add_reference(union acpi_operand_object *object) +{ + + ACPI_FUNCTION_TRACE_PTR(ut_add_reference, object); + + /* Ensure that we have a valid object */ + + if (!acpi_ut_valid_internal_object(object)) { + return_VOID; + } + + ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, + "Obj %p Current Refs=%X [To Be Incremented]\n", + object, object->common.reference_count)); + + /* Increment the reference count */ + + (void)acpi_ut_update_object_reference(object, REF_INCREMENT); + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_remove_reference + * + * PARAMETERS: Object - Object whose ref count will be decremented + * + * RETURN: None + * + * DESCRIPTION: Decrement the reference count of an ACPI internal object + * + ******************************************************************************/ + +void acpi_ut_remove_reference(union acpi_operand_object *object) +{ + + ACPI_FUNCTION_TRACE_PTR(ut_remove_reference, object); + + /* + * Allow a NULL pointer to be passed in, just ignore it. This saves + * each caller from having to check. Also, ignore NS nodes. + * + */ + if (!object || + (ACPI_GET_DESCRIPTOR_TYPE(object) == ACPI_DESC_TYPE_NAMED)) { + return_VOID; + } + + /* Ensure that we have a valid object */ + + if (!acpi_ut_valid_internal_object(object)) { + return_VOID; + } + + ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, + "Obj %p Current Refs=%X [To Be Decremented]\n", + object, object->common.reference_count)); + + /* + * Decrement the reference count, and only actually delete the object + * if the reference count becomes 0. (Must also decrement the ref count + * of all subobjects!) + */ + (void)acpi_ut_update_object_reference(object, REF_DECREMENT); + return_VOID; +} diff --git a/drivers/acpi/acpica/uteval.c b/drivers/acpi/acpica/uteval.c new file mode 100644 index 000000000000..e1e438cd54a9 --- /dev/null +++ b/drivers/acpi/acpica/uteval.c @@ -0,0 +1,752 @@ +/****************************************************************************** + * + * Module Name: uteval - Object evaluation + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include + +#define _COMPONENT ACPI_UTILITIES +ACPI_MODULE_NAME("uteval") + +/* Local prototypes */ +static void +acpi_ut_copy_id_string(char *destination, char *source, acpi_size max_length); + +static acpi_status +acpi_ut_translate_one_cid(union acpi_operand_object *obj_desc, + struct acpi_compatible_id *one_cid); + +/* + * Strings supported by the _OSI predefined (internal) method. + */ +static char *acpi_interfaces_supported[] = { + /* Operating System Vendor Strings */ + + "Windows 2000", /* Windows 2000 */ + "Windows 2001", /* Windows XP */ + "Windows 2001 SP1", /* Windows XP SP1 */ + "Windows 2001 SP2", /* Windows XP SP2 */ + "Windows 2001.1", /* Windows Server 2003 */ + "Windows 2001.1 SP1", /* Windows Server 2003 SP1 - Added 03/2006 */ + "Windows 2006", /* Windows Vista - Added 03/2006 */ + + /* Feature Group Strings */ + + "Extended Address Space Descriptor" + /* + * All "optional" feature group strings (features that are implemented + * by the host) should be implemented in the host version of + * acpi_os_validate_interface and should not be added here. + */ +}; + +/******************************************************************************* + * + * FUNCTION: acpi_ut_osi_implementation + * + * PARAMETERS: walk_state - Current walk state + * + * RETURN: Status + * + * DESCRIPTION: Implementation of the _OSI predefined control method + * + ******************************************************************************/ + +acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state) +{ + acpi_status status; + union acpi_operand_object *string_desc; + union acpi_operand_object *return_desc; + u32 i; + + ACPI_FUNCTION_TRACE(ut_osi_implementation); + + /* Validate the string input argument */ + + string_desc = walk_state->arguments[0].object; + if (!string_desc || (string_desc->common.type != ACPI_TYPE_STRING)) { + return_ACPI_STATUS(AE_TYPE); + } + + /* Create a return object */ + + return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + if (!return_desc) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* Default return value is SUPPORTED */ + + return_desc->integer.value = ACPI_UINT32_MAX; + walk_state->return_desc = return_desc; + + /* Compare input string to static table of supported interfaces */ + + for (i = 0; i < ACPI_ARRAY_LENGTH(acpi_interfaces_supported); i++) { + if (!ACPI_STRCMP + (string_desc->string.pointer, + acpi_interfaces_supported[i])) { + + /* The interface is supported */ + + return_ACPI_STATUS(AE_OK); + } + } + + /* + * Did not match the string in the static table, call the host OSL to + * check for a match with one of the optional strings (such as + * "Module Device", "3.0 Thermal Model", etc.) + */ + status = acpi_os_validate_interface(string_desc->string.pointer); + if (ACPI_SUCCESS(status)) { + + /* The interface is supported */ + + return_ACPI_STATUS(AE_OK); + } + + /* The interface is not supported */ + + return_desc->integer.value = 0; + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_osi_invalidate + * + * PARAMETERS: interface_string + * + * RETURN: Status + * + * DESCRIPTION: invalidate string in pre-defiend _OSI string list + * + ******************************************************************************/ + +acpi_status acpi_osi_invalidate(char *interface) +{ + int i; + + for (i = 0; i < ACPI_ARRAY_LENGTH(acpi_interfaces_supported); i++) { + if (!ACPI_STRCMP(interface, acpi_interfaces_supported[i])) { + *acpi_interfaces_supported[i] = '\0'; + return AE_OK; + } + } + return AE_NOT_FOUND; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_evaluate_object + * + * PARAMETERS: prefix_node - Starting node + * Path - Path to object from starting node + * expected_return_types - Bitmap of allowed return types + * return_desc - Where a return value is stored + * + * RETURN: Status + * + * DESCRIPTION: Evaluates a namespace object and verifies the type of the + * return object. Common code that simplifies accessing objects + * that have required return objects of fixed types. + * + * NOTE: Internal function, no parameter validation + * + ******************************************************************************/ + +acpi_status +acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node, + char *path, + u32 expected_return_btypes, + union acpi_operand_object **return_desc) +{ + struct acpi_evaluate_info *info; + acpi_status status; + u32 return_btype; + + ACPI_FUNCTION_TRACE(ut_evaluate_object); + + /* Allocate the evaluation information block */ + + info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info)); + if (!info) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + info->prefix_node = prefix_node; + info->pathname = path; + + /* Evaluate the object/method */ + + status = acpi_ns_evaluate(info); + if (ACPI_FAILURE(status)) { + if (status == AE_NOT_FOUND) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "[%4.4s.%s] was not found\n", + acpi_ut_get_node_name(prefix_node), + path)); + } else { + ACPI_ERROR_METHOD("Method execution failed", + prefix_node, path, status); + } + + goto cleanup; + } + + /* Did we get a return object? */ + + if (!info->return_object) { + if (expected_return_btypes) { + ACPI_ERROR_METHOD("No object was returned from", + prefix_node, path, AE_NOT_EXIST); + + status = AE_NOT_EXIST; + } + + goto cleanup; + } + + /* Map the return object type to the bitmapped type */ + + switch (ACPI_GET_OBJECT_TYPE(info->return_object)) { + case ACPI_TYPE_INTEGER: + return_btype = ACPI_BTYPE_INTEGER; + break; + + case ACPI_TYPE_BUFFER: + return_btype = ACPI_BTYPE_BUFFER; + break; + + case ACPI_TYPE_STRING: + return_btype = ACPI_BTYPE_STRING; + break; + + case ACPI_TYPE_PACKAGE: + return_btype = ACPI_BTYPE_PACKAGE; + break; + + default: + return_btype = 0; + break; + } + + if ((acpi_gbl_enable_interpreter_slack) && (!expected_return_btypes)) { + /* + * We received a return object, but one was not expected. This can + * happen frequently if the "implicit return" feature is enabled. + * Just delete the return object and return AE_OK. + */ + acpi_ut_remove_reference(info->return_object); + goto cleanup; + } + + /* Is the return object one of the expected types? */ + + if (!(expected_return_btypes & return_btype)) { + ACPI_ERROR_METHOD("Return object type is incorrect", + prefix_node, path, AE_TYPE); + + ACPI_ERROR((AE_INFO, + "Type returned from %s was incorrect: %s, expected Btypes: %X", + path, + acpi_ut_get_object_type_name(info->return_object), + expected_return_btypes)); + + /* On error exit, we must delete the return object */ + + acpi_ut_remove_reference(info->return_object); + status = AE_TYPE; + goto cleanup; + } + + /* Object type is OK, return it */ + + *return_desc = info->return_object; + + cleanup: + ACPI_FREE(info); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_evaluate_numeric_object + * + * PARAMETERS: object_name - Object name to be evaluated + * device_node - Node for the device + * Address - Where the value is returned + * + * RETURN: Status + * + * DESCRIPTION: Evaluates a numeric namespace object for a selected device + * and stores result in *Address. + * + * NOTE: Internal function, no parameter validation + * + ******************************************************************************/ + +acpi_status +acpi_ut_evaluate_numeric_object(char *object_name, + struct acpi_namespace_node *device_node, + acpi_integer * address) +{ + union acpi_operand_object *obj_desc; + acpi_status status; + + ACPI_FUNCTION_TRACE(ut_evaluate_numeric_object); + + status = acpi_ut_evaluate_object(device_node, object_name, + ACPI_BTYPE_INTEGER, &obj_desc); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Get the returned Integer */ + + *address = obj_desc->integer.value; + + /* On exit, we must delete the return object */ + + acpi_ut_remove_reference(obj_desc); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_copy_id_string + * + * PARAMETERS: Destination - Where to copy the string + * Source - Source string + * max_length - Length of the destination buffer + * + * RETURN: None + * + * DESCRIPTION: Copies an ID string for the _HID, _CID, and _UID methods. + * Performs removal of a leading asterisk if present -- workaround + * for a known issue on a bunch of machines. + * + ******************************************************************************/ + +static void +acpi_ut_copy_id_string(char *destination, char *source, acpi_size max_length) +{ + + /* + * Workaround for ID strings that have a leading asterisk. This construct + * is not allowed by the ACPI specification (ID strings must be + * alphanumeric), but enough existing machines have this embedded in their + * ID strings that the following code is useful. + */ + if (*source == '*') { + source++; + } + + /* Do the actual copy */ + + ACPI_STRNCPY(destination, source, max_length); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_execute_HID + * + * PARAMETERS: device_node - Node for the device + * Hid - Where the HID is returned + * + * RETURN: Status + * + * DESCRIPTION: Executes the _HID control method that returns the hardware + * ID of the device. + * + * NOTE: Internal function, no parameter validation + * + ******************************************************************************/ + +acpi_status +acpi_ut_execute_HID(struct acpi_namespace_node *device_node, + struct acpica_device_id *hid) +{ + union acpi_operand_object *obj_desc; + acpi_status status; + + ACPI_FUNCTION_TRACE(ut_execute_HID); + + status = acpi_ut_evaluate_object(device_node, METHOD_NAME__HID, + ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING, + &obj_desc); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) { + + /* Convert the Numeric HID to string */ + + acpi_ex_eisa_id_to_string((u32) obj_desc->integer.value, + hid->value); + } else { + /* Copy the String HID from the returned object */ + + acpi_ut_copy_id_string(hid->value, obj_desc->string.pointer, + sizeof(hid->value)); + } + + /* On exit, we must delete the return object */ + + acpi_ut_remove_reference(obj_desc); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_translate_one_cid + * + * PARAMETERS: obj_desc - _CID object, must be integer or string + * one_cid - Where the CID string is returned + * + * RETURN: Status + * + * DESCRIPTION: Return a numeric or string _CID value as a string. + * (Compatible ID) + * + * NOTE: Assumes a maximum _CID string length of + * ACPI_MAX_CID_LENGTH. + * + ******************************************************************************/ + +static acpi_status +acpi_ut_translate_one_cid(union acpi_operand_object *obj_desc, + struct acpi_compatible_id *one_cid) +{ + + switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { + case ACPI_TYPE_INTEGER: + + /* Convert the Numeric CID to string */ + + acpi_ex_eisa_id_to_string((u32) obj_desc->integer.value, + one_cid->value); + return (AE_OK); + + case ACPI_TYPE_STRING: + + if (obj_desc->string.length > ACPI_MAX_CID_LENGTH) { + return (AE_AML_STRING_LIMIT); + } + + /* Copy the String CID from the returned object */ + + acpi_ut_copy_id_string(one_cid->value, obj_desc->string.pointer, + ACPI_MAX_CID_LENGTH); + return (AE_OK); + + default: + + return (AE_TYPE); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_execute_CID + * + * PARAMETERS: device_node - Node for the device + * return_cid_list - Where the CID list is returned + * + * RETURN: Status + * + * DESCRIPTION: Executes the _CID control method that returns one or more + * compatible hardware IDs for the device. + * + * NOTE: Internal function, no parameter validation + * + ******************************************************************************/ + +acpi_status +acpi_ut_execute_CID(struct acpi_namespace_node * device_node, + struct acpi_compatible_id_list ** return_cid_list) +{ + union acpi_operand_object *obj_desc; + acpi_status status; + u32 count; + u32 size; + struct acpi_compatible_id_list *cid_list; + u32 i; + + ACPI_FUNCTION_TRACE(ut_execute_CID); + + /* Evaluate the _CID method for this device */ + + status = acpi_ut_evaluate_object(device_node, METHOD_NAME__CID, + ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING + | ACPI_BTYPE_PACKAGE, &obj_desc); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Get the number of _CIDs returned */ + + count = 1; + if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_PACKAGE) { + count = obj_desc->package.count; + } + + /* Allocate a worst-case buffer for the _CIDs */ + + size = (((count - 1) * sizeof(struct acpi_compatible_id)) + + sizeof(struct acpi_compatible_id_list)); + + cid_list = ACPI_ALLOCATE_ZEROED((acpi_size) size); + if (!cid_list) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* Init CID list */ + + cid_list->count = count; + cid_list->size = size; + + /* + * A _CID can return either a single compatible ID or a package of + * compatible IDs. Each compatible ID can be one of the following: + * 1) Integer (32 bit compressed EISA ID) or + * 2) String (PCI ID format, e.g. "PCI\VEN_vvvv&DEV_dddd&SUBSYS_ssssssss") + */ + + /* The _CID object can be either a single CID or a package (list) of CIDs */ + + if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_PACKAGE) { + + /* Translate each package element */ + + for (i = 0; i < count; i++) { + status = + acpi_ut_translate_one_cid(obj_desc->package. + elements[i], + &cid_list->id[i]); + if (ACPI_FAILURE(status)) { + break; + } + } + } else { + /* Only one CID, translate to a string */ + + status = acpi_ut_translate_one_cid(obj_desc, cid_list->id); + } + + /* Cleanup on error */ + + if (ACPI_FAILURE(status)) { + ACPI_FREE(cid_list); + } else { + *return_cid_list = cid_list; + } + + /* On exit, we must delete the _CID return object */ + + acpi_ut_remove_reference(obj_desc); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_execute_UID + * + * PARAMETERS: device_node - Node for the device + * Uid - Where the UID is returned + * + * RETURN: Status + * + * DESCRIPTION: Executes the _UID control method that returns the hardware + * ID of the device. + * + * NOTE: Internal function, no parameter validation + * + ******************************************************************************/ + +acpi_status +acpi_ut_execute_UID(struct acpi_namespace_node *device_node, + struct acpica_device_id *uid) +{ + union acpi_operand_object *obj_desc; + acpi_status status; + + ACPI_FUNCTION_TRACE(ut_execute_UID); + + status = acpi_ut_evaluate_object(device_node, METHOD_NAME__UID, + ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING, + &obj_desc); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) { + + /* Convert the Numeric UID to string */ + + acpi_ex_unsigned_integer_to_string(obj_desc->integer.value, + uid->value); + } else { + /* Copy the String UID from the returned object */ + + acpi_ut_copy_id_string(uid->value, obj_desc->string.pointer, + sizeof(uid->value)); + } + + /* On exit, we must delete the return object */ + + acpi_ut_remove_reference(obj_desc); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_execute_STA + * + * PARAMETERS: device_node - Node for the device + * Flags - Where the status flags are returned + * + * RETURN: Status + * + * DESCRIPTION: Executes _STA for selected device and stores results in + * *Flags. + * + * NOTE: Internal function, no parameter validation + * + ******************************************************************************/ + +acpi_status +acpi_ut_execute_STA(struct acpi_namespace_node *device_node, u32 * flags) +{ + union acpi_operand_object *obj_desc; + acpi_status status; + + ACPI_FUNCTION_TRACE(ut_execute_STA); + + status = acpi_ut_evaluate_object(device_node, METHOD_NAME__STA, + ACPI_BTYPE_INTEGER, &obj_desc); + if (ACPI_FAILURE(status)) { + if (AE_NOT_FOUND == status) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "_STA on %4.4s was not found, assuming device is present\n", + acpi_ut_get_node_name(device_node))); + + *flags = ACPI_UINT32_MAX; + status = AE_OK; + } + + return_ACPI_STATUS(status); + } + + /* Extract the status flags */ + + *flags = (u32) obj_desc->integer.value; + + /* On exit, we must delete the return object */ + + acpi_ut_remove_reference(obj_desc); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_execute_Sxds + * + * PARAMETERS: device_node - Node for the device + * Flags - Where the status flags are returned + * + * RETURN: Status + * + * DESCRIPTION: Executes _STA for selected device and stores results in + * *Flags. + * + * NOTE: Internal function, no parameter validation + * + ******************************************************************************/ + +acpi_status +acpi_ut_execute_sxds(struct acpi_namespace_node *device_node, u8 * highest) +{ + union acpi_operand_object *obj_desc; + acpi_status status; + u32 i; + + ACPI_FUNCTION_TRACE(ut_execute_sxds); + + for (i = 0; i < 4; i++) { + highest[i] = 0xFF; + status = acpi_ut_evaluate_object(device_node, + ACPI_CAST_PTR(char, + acpi_gbl_highest_dstate_names + [i]), + ACPI_BTYPE_INTEGER, &obj_desc); + if (ACPI_FAILURE(status)) { + if (status != AE_NOT_FOUND) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "%s on Device %4.4s, %s\n", + ACPI_CAST_PTR(char, + acpi_gbl_highest_dstate_names + [i]), + acpi_ut_get_node_name + (device_node), + acpi_format_exception + (status))); + + return_ACPI_STATUS(status); + } + } else { + /* Extract the Dstate value */ + + highest[i] = (u8) obj_desc->integer.value; + + /* Delete the return object */ + + acpi_ut_remove_reference(obj_desc); + } + } + + return_ACPI_STATUS(AE_OK); +} diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c new file mode 100644 index 000000000000..3e28d8c4045d --- /dev/null +++ b/drivers/acpi/acpica/utglobal.c @@ -0,0 +1,823 @@ +/****************************************************************************** + * + * Module Name: utglobal - Global variables for the ACPI subsystem + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#define DEFINE_ACPI_GLOBALS + +#include +#include +#include + +#define _COMPONENT ACPI_UTILITIES +ACPI_MODULE_NAME("utglobal") + +/******************************************************************************* + * + * Static global variable initialization. + * + ******************************************************************************/ +/* + * We want the debug switches statically initialized so they + * are already set when the debugger is entered. + */ +/* Debug switch - level and trace mask */ +u32 acpi_dbg_level = ACPI_DEBUG_DEFAULT; + +/* Debug switch - layer (component) mask */ + +u32 acpi_dbg_layer = 0; +u32 acpi_gbl_nesting_level = 0; + +/* Debugger globals */ + +u8 acpi_gbl_db_terminate_threads = FALSE; +u8 acpi_gbl_abort_method = FALSE; +u8 acpi_gbl_method_executing = FALSE; + +/* System flags */ + +u32 acpi_gbl_startup_flags = 0; + +/* System starts uninitialized */ + +u8 acpi_gbl_shutdown = TRUE; + +const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT] = { + "\\_S0_", + "\\_S1_", + "\\_S2_", + "\\_S3_", + "\\_S4_", + "\\_S5_" +}; + +const char *acpi_gbl_highest_dstate_names[4] = { + "_S1D", + "_S2D", + "_S3D", + "_S4D" +}; + +/******************************************************************************* + * + * FUNCTION: acpi_format_exception + * + * PARAMETERS: Status - The acpi_status code to be formatted + * + * RETURN: A string containing the exception text. A valid pointer is + * always returned. + * + * DESCRIPTION: This function translates an ACPI exception into an ASCII string + * It is here instead of utxface.c so it is always present. + * + ******************************************************************************/ + +const char *acpi_format_exception(acpi_status status) +{ + const char *exception = NULL; + + ACPI_FUNCTION_ENTRY(); + + exception = acpi_ut_validate_exception(status); + if (!exception) { + + /* Exception code was not recognized */ + + ACPI_ERROR((AE_INFO, + "Unknown exception code: 0x%8.8X", status)); + + exception = "UNKNOWN_STATUS_CODE"; + dump_stack(); + } + + return (ACPI_CAST_PTR(const char, exception)); +} + +ACPI_EXPORT_SYMBOL(acpi_format_exception) + +/******************************************************************************* + * + * Namespace globals + * + ******************************************************************************/ +/* + * Predefined ACPI Names (Built-in to the Interpreter) + * + * NOTES: + * 1) _SB_ is defined to be a device to allow \_SB_._INI to be run + * during the initialization sequence. + * 2) _TZ_ is defined to be a thermal zone in order to allow ASL code to + * perform a Notify() operation on it. + */ +const struct acpi_predefined_names acpi_gbl_pre_defined_names[] = { + {"_GPE", ACPI_TYPE_LOCAL_SCOPE, NULL}, + {"_PR_", ACPI_TYPE_LOCAL_SCOPE, NULL}, + {"_SB_", ACPI_TYPE_DEVICE, NULL}, + {"_SI_", ACPI_TYPE_LOCAL_SCOPE, NULL}, + {"_TZ_", ACPI_TYPE_THERMAL, NULL}, + {"_REV", ACPI_TYPE_INTEGER, (char *)ACPI_CA_SUPPORT_LEVEL}, + {"_OS_", ACPI_TYPE_STRING, ACPI_OS_NAME}, + {"_GL_", ACPI_TYPE_MUTEX, (char *)1}, + +#if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY) + {"_OSI", ACPI_TYPE_METHOD, (char *)1}, +#endif + + /* Table terminator */ + + {NULL, ACPI_TYPE_ANY, NULL} +}; + +/* + * Properties of the ACPI Object Types, both internal and external. + * The table is indexed by values of acpi_object_type + */ +const u8 acpi_gbl_ns_properties[] = { + ACPI_NS_NORMAL, /* 00 Any */ + ACPI_NS_NORMAL, /* 01 Number */ + ACPI_NS_NORMAL, /* 02 String */ + ACPI_NS_NORMAL, /* 03 Buffer */ + ACPI_NS_NORMAL, /* 04 Package */ + ACPI_NS_NORMAL, /* 05 field_unit */ + ACPI_NS_NEWSCOPE, /* 06 Device */ + ACPI_NS_NORMAL, /* 07 Event */ + ACPI_NS_NEWSCOPE, /* 08 Method */ + ACPI_NS_NORMAL, /* 09 Mutex */ + ACPI_NS_NORMAL, /* 10 Region */ + ACPI_NS_NEWSCOPE, /* 11 Power */ + ACPI_NS_NEWSCOPE, /* 12 Processor */ + ACPI_NS_NEWSCOPE, /* 13 Thermal */ + ACPI_NS_NORMAL, /* 14 buffer_field */ + ACPI_NS_NORMAL, /* 15 ddb_handle */ + ACPI_NS_NORMAL, /* 16 Debug Object */ + ACPI_NS_NORMAL, /* 17 def_field */ + ACPI_NS_NORMAL, /* 18 bank_field */ + ACPI_NS_NORMAL, /* 19 index_field */ + ACPI_NS_NORMAL, /* 20 Reference */ + ACPI_NS_NORMAL, /* 21 Alias */ + ACPI_NS_NORMAL, /* 22 method_alias */ + ACPI_NS_NORMAL, /* 23 Notify */ + ACPI_NS_NORMAL, /* 24 Address Handler */ + ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL, /* 25 Resource Desc */ + ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL, /* 26 Resource Field */ + ACPI_NS_NEWSCOPE, /* 27 Scope */ + ACPI_NS_NORMAL, /* 28 Extra */ + ACPI_NS_NORMAL, /* 29 Data */ + ACPI_NS_NORMAL /* 30 Invalid */ +}; + +/* Hex to ASCII conversion table */ + +static const char acpi_gbl_hex_to_ascii[] = { + '0', '1', '2', '3', '4', '5', '6', '7', + '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' +}; + +/******************************************************************************* + * + * FUNCTION: acpi_ut_hex_to_ascii_char + * + * PARAMETERS: Integer - Contains the hex digit + * Position - bit position of the digit within the + * integer (multiple of 4) + * + * RETURN: The converted Ascii character + * + * DESCRIPTION: Convert a hex digit to an Ascii character + * + ******************************************************************************/ + +char acpi_ut_hex_to_ascii_char(acpi_integer integer, u32 position) +{ + + return (acpi_gbl_hex_to_ascii[(integer >> position) & 0xF]); +} + +/****************************************************************************** + * + * Event and Hardware globals + * + ******************************************************************************/ + +struct acpi_bit_register_info acpi_gbl_bit_register_info[ACPI_NUM_BITREG] = { + /* Name Parent Register Register Bit Position Register Bit Mask */ + + /* ACPI_BITREG_TIMER_STATUS */ {ACPI_REGISTER_PM1_STATUS, + ACPI_BITPOSITION_TIMER_STATUS, + ACPI_BITMASK_TIMER_STATUS}, + /* ACPI_BITREG_BUS_MASTER_STATUS */ {ACPI_REGISTER_PM1_STATUS, + ACPI_BITPOSITION_BUS_MASTER_STATUS, + ACPI_BITMASK_BUS_MASTER_STATUS}, + /* ACPI_BITREG_GLOBAL_LOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS, + ACPI_BITPOSITION_GLOBAL_LOCK_STATUS, + ACPI_BITMASK_GLOBAL_LOCK_STATUS}, + /* ACPI_BITREG_POWER_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS, + ACPI_BITPOSITION_POWER_BUTTON_STATUS, + ACPI_BITMASK_POWER_BUTTON_STATUS}, + /* ACPI_BITREG_SLEEP_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS, + ACPI_BITPOSITION_SLEEP_BUTTON_STATUS, + ACPI_BITMASK_SLEEP_BUTTON_STATUS}, + /* ACPI_BITREG_RT_CLOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS, + ACPI_BITPOSITION_RT_CLOCK_STATUS, + ACPI_BITMASK_RT_CLOCK_STATUS}, + /* ACPI_BITREG_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS, + ACPI_BITPOSITION_WAKE_STATUS, + ACPI_BITMASK_WAKE_STATUS}, + /* ACPI_BITREG_PCIEXP_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS, + ACPI_BITPOSITION_PCIEXP_WAKE_STATUS, + ACPI_BITMASK_PCIEXP_WAKE_STATUS}, + + /* ACPI_BITREG_TIMER_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, + ACPI_BITPOSITION_TIMER_ENABLE, + ACPI_BITMASK_TIMER_ENABLE}, + /* ACPI_BITREG_GLOBAL_LOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, + ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE, + ACPI_BITMASK_GLOBAL_LOCK_ENABLE}, + /* ACPI_BITREG_POWER_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, + ACPI_BITPOSITION_POWER_BUTTON_ENABLE, + ACPI_BITMASK_POWER_BUTTON_ENABLE}, + /* ACPI_BITREG_SLEEP_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, + ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE, + ACPI_BITMASK_SLEEP_BUTTON_ENABLE}, + /* ACPI_BITREG_RT_CLOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, + ACPI_BITPOSITION_RT_CLOCK_ENABLE, + ACPI_BITMASK_RT_CLOCK_ENABLE}, + /* ACPI_BITREG_PCIEXP_WAKE_DISABLE */ {ACPI_REGISTER_PM1_ENABLE, + ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE, + ACPI_BITMASK_PCIEXP_WAKE_DISABLE}, + + /* ACPI_BITREG_SCI_ENABLE */ {ACPI_REGISTER_PM1_CONTROL, + ACPI_BITPOSITION_SCI_ENABLE, + ACPI_BITMASK_SCI_ENABLE}, + /* ACPI_BITREG_BUS_MASTER_RLD */ {ACPI_REGISTER_PM1_CONTROL, + ACPI_BITPOSITION_BUS_MASTER_RLD, + ACPI_BITMASK_BUS_MASTER_RLD}, + /* ACPI_BITREG_GLOBAL_LOCK_RELEASE */ {ACPI_REGISTER_PM1_CONTROL, + ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE, + ACPI_BITMASK_GLOBAL_LOCK_RELEASE}, + /* ACPI_BITREG_SLEEP_TYPE_A */ {ACPI_REGISTER_PM1_CONTROL, + ACPI_BITPOSITION_SLEEP_TYPE_X, + ACPI_BITMASK_SLEEP_TYPE_X}, + /* ACPI_BITREG_SLEEP_TYPE_B */ {ACPI_REGISTER_PM1_CONTROL, + ACPI_BITPOSITION_SLEEP_TYPE_X, + ACPI_BITMASK_SLEEP_TYPE_X}, + /* ACPI_BITREG_SLEEP_ENABLE */ {ACPI_REGISTER_PM1_CONTROL, + ACPI_BITPOSITION_SLEEP_ENABLE, + ACPI_BITMASK_SLEEP_ENABLE}, + + /* ACPI_BITREG_ARB_DIS */ {ACPI_REGISTER_PM2_CONTROL, + ACPI_BITPOSITION_ARB_DISABLE, + ACPI_BITMASK_ARB_DISABLE} +}; + +struct acpi_fixed_event_info acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS] = { + /* ACPI_EVENT_PMTIMER */ {ACPI_BITREG_TIMER_STATUS, + ACPI_BITREG_TIMER_ENABLE, + ACPI_BITMASK_TIMER_STATUS, + ACPI_BITMASK_TIMER_ENABLE}, + /* ACPI_EVENT_GLOBAL */ {ACPI_BITREG_GLOBAL_LOCK_STATUS, + ACPI_BITREG_GLOBAL_LOCK_ENABLE, + ACPI_BITMASK_GLOBAL_LOCK_STATUS, + ACPI_BITMASK_GLOBAL_LOCK_ENABLE}, + /* ACPI_EVENT_POWER_BUTTON */ {ACPI_BITREG_POWER_BUTTON_STATUS, + ACPI_BITREG_POWER_BUTTON_ENABLE, + ACPI_BITMASK_POWER_BUTTON_STATUS, + ACPI_BITMASK_POWER_BUTTON_ENABLE}, + /* ACPI_EVENT_SLEEP_BUTTON */ {ACPI_BITREG_SLEEP_BUTTON_STATUS, + ACPI_BITREG_SLEEP_BUTTON_ENABLE, + ACPI_BITMASK_SLEEP_BUTTON_STATUS, + ACPI_BITMASK_SLEEP_BUTTON_ENABLE}, + /* ACPI_EVENT_RTC */ {ACPI_BITREG_RT_CLOCK_STATUS, + ACPI_BITREG_RT_CLOCK_ENABLE, + ACPI_BITMASK_RT_CLOCK_STATUS, + ACPI_BITMASK_RT_CLOCK_ENABLE}, +}; + +/******************************************************************************* + * + * FUNCTION: acpi_ut_get_region_name + * + * PARAMETERS: None. + * + * RETURN: Status + * + * DESCRIPTION: Translate a Space ID into a name string (Debug only) + * + ******************************************************************************/ + +/* Region type decoding */ + +const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS] = { + "SystemMemory", + "SystemIO", + "PCI_Config", + "EmbeddedControl", + "SMBus", + "SystemCMOS", + "PCIBARTarget", + "DataTable" +}; + +char *acpi_ut_get_region_name(u8 space_id) +{ + + if (space_id >= ACPI_USER_REGION_BEGIN) { + return ("UserDefinedRegion"); + } else if (space_id >= ACPI_NUM_PREDEFINED_REGIONS) { + return ("InvalidSpaceId"); + } + + return (ACPI_CAST_PTR(char, acpi_gbl_region_types[space_id])); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_get_event_name + * + * PARAMETERS: None. + * + * RETURN: Status + * + * DESCRIPTION: Translate a Event ID into a name string (Debug only) + * + ******************************************************************************/ + +/* Event type decoding */ + +static const char *acpi_gbl_event_types[ACPI_NUM_FIXED_EVENTS] = { + "PM_Timer", + "GlobalLock", + "PowerButton", + "SleepButton", + "RealTimeClock", +}; + +char *acpi_ut_get_event_name(u32 event_id) +{ + + if (event_id > ACPI_EVENT_MAX) { + return ("InvalidEventID"); + } + + return (ACPI_CAST_PTR(char, acpi_gbl_event_types[event_id])); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_get_type_name + * + * PARAMETERS: None. + * + * RETURN: Status + * + * DESCRIPTION: Translate a Type ID into a name string (Debug only) + * + ******************************************************************************/ + +/* + * Elements of acpi_gbl_ns_type_names below must match + * one-to-one with values of acpi_object_type + * + * The type ACPI_TYPE_ANY (Untyped) is used as a "don't care" when searching; + * when stored in a table it really means that we have thus far seen no + * evidence to indicate what type is actually going to be stored for this entry. + */ +static const char acpi_gbl_bad_type[] = "UNDEFINED"; + +/* Printable names of the ACPI object types */ + +static const char *acpi_gbl_ns_type_names[] = { + /* 00 */ "Untyped", + /* 01 */ "Integer", + /* 02 */ "String", + /* 03 */ "Buffer", + /* 04 */ "Package", + /* 05 */ "FieldUnit", + /* 06 */ "Device", + /* 07 */ "Event", + /* 08 */ "Method", + /* 09 */ "Mutex", + /* 10 */ "Region", + /* 11 */ "Power", + /* 12 */ "Processor", + /* 13 */ "Thermal", + /* 14 */ "BufferField", + /* 15 */ "DdbHandle", + /* 16 */ "DebugObject", + /* 17 */ "RegionField", + /* 18 */ "BankField", + /* 19 */ "IndexField", + /* 20 */ "Reference", + /* 21 */ "Alias", + /* 22 */ "MethodAlias", + /* 23 */ "Notify", + /* 24 */ "AddrHandler", + /* 25 */ "ResourceDesc", + /* 26 */ "ResourceFld", + /* 27 */ "Scope", + /* 28 */ "Extra", + /* 29 */ "Data", + /* 30 */ "Invalid" +}; + +char *acpi_ut_get_type_name(acpi_object_type type) +{ + + if (type > ACPI_TYPE_INVALID) { + return (ACPI_CAST_PTR(char, acpi_gbl_bad_type)); + } + + return (ACPI_CAST_PTR(char, acpi_gbl_ns_type_names[type])); +} + +char *acpi_ut_get_object_type_name(union acpi_operand_object *obj_desc) +{ + + if (!obj_desc) { + return ("[NULL Object Descriptor]"); + } + + return (acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE(obj_desc))); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_get_node_name + * + * PARAMETERS: Object - A namespace node + * + * RETURN: Pointer to a string + * + * DESCRIPTION: Validate the node and return the node's ACPI name. + * + ******************************************************************************/ + +char *acpi_ut_get_node_name(void *object) +{ + struct acpi_namespace_node *node = (struct acpi_namespace_node *)object; + + /* Must return a string of exactly 4 characters == ACPI_NAME_SIZE */ + + if (!object) { + return ("NULL"); + } + + /* Check for Root node */ + + if ((object == ACPI_ROOT_OBJECT) || (object == acpi_gbl_root_node)) { + return ("\"\\\" "); + } + + /* Descriptor must be a namespace node */ + + if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) { + return ("####"); + } + + /* Name must be a valid ACPI name */ + + if (!acpi_ut_valid_acpi_name(node->name.integer)) { + node->name.integer = acpi_ut_repair_name(node->name.ascii); + } + + /* Return the name */ + + return (node->name.ascii); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_get_descriptor_name + * + * PARAMETERS: Object - An ACPI object + * + * RETURN: Pointer to a string + * + * DESCRIPTION: Validate object and return the descriptor type + * + ******************************************************************************/ + +/* Printable names of object descriptor types */ + +static const char *acpi_gbl_desc_type_names[] = { + /* 00 */ "Invalid", + /* 01 */ "Cached", + /* 02 */ "State-Generic", + /* 03 */ "State-Update", + /* 04 */ "State-Package", + /* 05 */ "State-Control", + /* 06 */ "State-RootParseScope", + /* 07 */ "State-ParseScope", + /* 08 */ "State-WalkScope", + /* 09 */ "State-Result", + /* 10 */ "State-Notify", + /* 11 */ "State-Thread", + /* 12 */ "Walk", + /* 13 */ "Parser", + /* 14 */ "Operand", + /* 15 */ "Node" +}; + +char *acpi_ut_get_descriptor_name(void *object) +{ + + if (!object) { + return ("NULL OBJECT"); + } + + if (ACPI_GET_DESCRIPTOR_TYPE(object) > ACPI_DESC_TYPE_MAX) { + return (ACPI_CAST_PTR(char, acpi_gbl_bad_type)); + } + + return (ACPI_CAST_PTR(char, + acpi_gbl_desc_type_names[ACPI_GET_DESCRIPTOR_TYPE + (object)])); + +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_get_reference_name + * + * PARAMETERS: Object - An ACPI reference object + * + * RETURN: Pointer to a string + * + * DESCRIPTION: Decode a reference object sub-type to a string. + * + ******************************************************************************/ + +/* Printable names of reference object sub-types */ + +static const char *acpi_gbl_ref_class_names[] = { + /* 00 */ "Local", + /* 01 */ "Argument", + /* 02 */ "RefOf", + /* 03 */ "Index", + /* 04 */ "DdbHandle", + /* 05 */ "Named Object", + /* 06 */ "Debug" +}; + +const char *acpi_ut_get_reference_name(union acpi_operand_object *object) +{ + if (!object) + return "NULL Object"; + + if (ACPI_GET_DESCRIPTOR_TYPE(object) != ACPI_DESC_TYPE_OPERAND) + return "Not an Operand object"; + + if (object->common.type != ACPI_TYPE_LOCAL_REFERENCE) + return "Not a Reference object"; + + if (object->reference.class > ACPI_REFCLASS_MAX) + return "Unknown Reference class"; + + return acpi_gbl_ref_class_names[object->reference.class]; +} + +#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) +/* + * Strings and procedures used for debug only + */ + +/******************************************************************************* + * + * FUNCTION: acpi_ut_get_mutex_name + * + * PARAMETERS: mutex_id - The predefined ID for this mutex. + * + * RETURN: String containing the name of the mutex. Always returns a valid + * pointer. + * + * DESCRIPTION: Translate a mutex ID into a name string (Debug only) + * + ******************************************************************************/ + +char *acpi_ut_get_mutex_name(u32 mutex_id) +{ + + if (mutex_id > ACPI_MAX_MUTEX) { + return ("Invalid Mutex ID"); + } + + return (acpi_gbl_mutex_names[mutex_id]); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_get_notify_name + * + * PARAMETERS: notify_value - Value from the Notify() request + * + * RETURN: String corresponding to the Notify Value. + * + * DESCRIPTION: Translate a Notify Value to a notify namestring. + * + ******************************************************************************/ + +/* Names for Notify() values, used for debug output */ + +static const char *acpi_gbl_notify_value_names[] = { + "Bus Check", + "Device Check", + "Device Wake", + "Eject Request", + "Device Check Light", + "Frequency Mismatch", + "Bus Mode Mismatch", + "Power Fault", + "Capabilities Check", + "Device PLD Check", + "Reserved", + "System Locality Update" +}; + +const char *acpi_ut_get_notify_name(u32 notify_value) +{ + + if (notify_value <= ACPI_NOTIFY_MAX) { + return (acpi_gbl_notify_value_names[notify_value]); + } else if (notify_value <= ACPI_MAX_SYS_NOTIFY) { + return ("Reserved"); + } else { /* Greater or equal to 0x80 */ + + return ("**Device Specific**"); + } +} +#endif + +/******************************************************************************* + * + * FUNCTION: acpi_ut_valid_object_type + * + * PARAMETERS: Type - Object type to be validated + * + * RETURN: TRUE if valid object type, FALSE otherwise + * + * DESCRIPTION: Validate an object type + * + ******************************************************************************/ + +u8 acpi_ut_valid_object_type(acpi_object_type type) +{ + + if (type > ACPI_TYPE_LOCAL_MAX) { + + /* Note: Assumes all TYPEs are contiguous (external/local) */ + + return (FALSE); + } + + return (TRUE); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_init_globals + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Init library globals. All globals that require specific + * initialization should be initialized here! + * + ******************************************************************************/ + +acpi_status acpi_ut_init_globals(void) +{ + acpi_status status; + u32 i; + + ACPI_FUNCTION_TRACE(ut_init_globals); + + /* Create all memory caches */ + + status = acpi_ut_create_caches(); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Mutex locked flags */ + + for (i = 0; i < ACPI_NUM_MUTEX; i++) { + acpi_gbl_mutex_info[i].mutex = NULL; + acpi_gbl_mutex_info[i].thread_id = ACPI_MUTEX_NOT_ACQUIRED; + acpi_gbl_mutex_info[i].use_count = 0; + } + + for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++) { + acpi_gbl_owner_id_mask[i] = 0; + } + acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000; /* Last ID is never valid */ + + /* GPE support */ + + acpi_gbl_gpe_xrupt_list_head = NULL; + acpi_gbl_gpe_fadt_blocks[0] = NULL; + acpi_gbl_gpe_fadt_blocks[1] = NULL; + acpi_current_gpe_count = 0; + + /* Global handlers */ + + acpi_gbl_system_notify.handler = NULL; + acpi_gbl_device_notify.handler = NULL; + acpi_gbl_exception_handler = NULL; + acpi_gbl_init_handler = NULL; + acpi_gbl_table_handler = NULL; + + /* Global Lock support */ + + acpi_gbl_global_lock_semaphore = NULL; + acpi_gbl_global_lock_mutex = NULL; + acpi_gbl_global_lock_acquired = FALSE; + acpi_gbl_global_lock_handle = 0; + acpi_gbl_global_lock_present = FALSE; + + /* Miscellaneous variables */ + + acpi_gbl_cm_single_step = FALSE; + acpi_gbl_db_terminate_threads = FALSE; + acpi_gbl_shutdown = FALSE; + acpi_gbl_ns_lookup_count = 0; + acpi_gbl_ps_find_count = 0; + acpi_gbl_acpi_hardware_present = TRUE; + acpi_gbl_last_owner_id_index = 0; + acpi_gbl_next_owner_id_offset = 0; + acpi_gbl_trace_method_name = 0; + acpi_gbl_trace_dbg_level = 0; + acpi_gbl_trace_dbg_layer = 0; + acpi_gbl_debugger_configuration = DEBUGGER_THREADING; + acpi_gbl_db_output_flags = ACPI_DB_CONSOLE_OUTPUT; + + /* Hardware oriented */ + + acpi_gbl_events_initialized = FALSE; + acpi_gbl_system_awake_and_running = TRUE; + + /* Namespace */ + + acpi_gbl_root_node = NULL; + acpi_gbl_root_node_struct.name.integer = ACPI_ROOT_NAME; + acpi_gbl_root_node_struct.descriptor_type = ACPI_DESC_TYPE_NAMED; + acpi_gbl_root_node_struct.type = ACPI_TYPE_DEVICE; + acpi_gbl_root_node_struct.child = NULL; + acpi_gbl_root_node_struct.peer = NULL; + acpi_gbl_root_node_struct.object = NULL; + acpi_gbl_root_node_struct.flags = ANOBJ_END_OF_PEER_LIST; + +#ifdef ACPI_DEBUG_OUTPUT + acpi_gbl_lowest_stack_pointer = ACPI_CAST_PTR(acpi_size, ACPI_SIZE_MAX); +#endif + +#ifdef ACPI_DBG_TRACK_ALLOCATIONS + acpi_gbl_display_final_mem_stats = FALSE; +#endif + + return_ACPI_STATUS(AE_OK); +} + +ACPI_EXPORT_SYMBOL(acpi_gbl_FADT) +ACPI_EXPORT_SYMBOL(acpi_dbg_level) +ACPI_EXPORT_SYMBOL(acpi_dbg_layer) +ACPI_EXPORT_SYMBOL(acpi_current_gpe_count) diff --git a/drivers/acpi/acpica/utinit.c b/drivers/acpi/acpica/utinit.c new file mode 100644 index 000000000000..9316ec36a836 --- /dev/null +++ b/drivers/acpi/acpica/utinit.c @@ -0,0 +1,152 @@ +/****************************************************************************** + * + * Module Name: utinit - Common ACPI subsystem initialization + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_UTILITIES +ACPI_MODULE_NAME("utinit") + +/* Local prototypes */ +static void acpi_ut_terminate(void); + +/****************************************************************************** + * + * FUNCTION: acpi_ut_terminate + * + * PARAMETERS: none + * + * RETURN: none + * + * DESCRIPTION: Free global memory + * + ******************************************************************************/ + +static void acpi_ut_terminate(void) +{ + struct acpi_gpe_block_info *gpe_block; + struct acpi_gpe_block_info *next_gpe_block; + struct acpi_gpe_xrupt_info *gpe_xrupt_info; + struct acpi_gpe_xrupt_info *next_gpe_xrupt_info; + + ACPI_FUNCTION_TRACE(ut_terminate); + + /* Free global GPE blocks and related info structures */ + + gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head; + while (gpe_xrupt_info) { + gpe_block = gpe_xrupt_info->gpe_block_list_head; + while (gpe_block) { + next_gpe_block = gpe_block->next; + ACPI_FREE(gpe_block->event_info); + ACPI_FREE(gpe_block->register_info); + ACPI_FREE(gpe_block); + + gpe_block = next_gpe_block; + } + next_gpe_xrupt_info = gpe_xrupt_info->next; + ACPI_FREE(gpe_xrupt_info); + gpe_xrupt_info = next_gpe_xrupt_info; + } + + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_subsystem_shutdown + * + * PARAMETERS: none + * + * RETURN: none + * + * DESCRIPTION: Shutdown the various subsystems. Don't delete the mutex + * objects here -- because the AML debugger may be still running. + * + ******************************************************************************/ + +void acpi_ut_subsystem_shutdown(void) +{ + + ACPI_FUNCTION_TRACE(ut_subsystem_shutdown); + + /* Just exit if subsystem is already shutdown */ + + if (acpi_gbl_shutdown) { + ACPI_ERROR((AE_INFO, "ACPI Subsystem is already terminated")); + return_VOID; + } + + /* Subsystem appears active, go ahead and shut it down */ + + acpi_gbl_shutdown = TRUE; + acpi_gbl_startup_flags = 0; + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n")); + +#ifndef ACPI_ASL_COMPILER + + /* Close the acpi_event Handling */ + + acpi_ev_terminate(); +#endif + + /* Close the Namespace */ + + acpi_ns_terminate(); + + /* Delete the ACPI tables */ + + acpi_tb_terminate(); + + /* Close the globals */ + + acpi_ut_terminate(); + + /* Purge the local caches */ + + (void)acpi_ut_delete_caches(); + return_VOID; +} diff --git a/drivers/acpi/acpica/utmath.c b/drivers/acpi/acpica/utmath.c new file mode 100644 index 000000000000..616d7b271c9a --- /dev/null +++ b/drivers/acpi/acpica/utmath.c @@ -0,0 +1,312 @@ +/******************************************************************************* + * + * Module Name: utmath - Integer math support routines + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include + +#define _COMPONENT ACPI_UTILITIES +ACPI_MODULE_NAME("utmath") + +/* + * Support for double-precision integer divide. This code is included here + * in order to support kernel environments where the double-precision math + * library is not available. + */ +#ifndef ACPI_USE_NATIVE_DIVIDE +/******************************************************************************* + * + * FUNCTION: acpi_ut_short_divide + * + * PARAMETERS: Dividend - 64-bit dividend + * Divisor - 32-bit divisor + * out_quotient - Pointer to where the quotient is returned + * out_remainder - Pointer to where the remainder is returned + * + * RETURN: Status (Checks for divide-by-zero) + * + * DESCRIPTION: Perform a short (maximum 64 bits divided by 32 bits) + * divide and modulo. The result is a 64-bit quotient and a + * 32-bit remainder. + * + ******************************************************************************/ +acpi_status +acpi_ut_short_divide(acpi_integer dividend, + u32 divisor, + acpi_integer * out_quotient, u32 * out_remainder) +{ + union uint64_overlay dividend_ovl; + union uint64_overlay quotient; + u32 remainder32; + + ACPI_FUNCTION_TRACE(ut_short_divide); + + /* Always check for a zero divisor */ + + if (divisor == 0) { + ACPI_ERROR((AE_INFO, "Divide by zero")); + return_ACPI_STATUS(AE_AML_DIVIDE_BY_ZERO); + } + + dividend_ovl.full = dividend; + + /* + * The quotient is 64 bits, the remainder is always 32 bits, + * and is generated by the second divide. + */ + ACPI_DIV_64_BY_32(0, dividend_ovl.part.hi, divisor, + quotient.part.hi, remainder32); + ACPI_DIV_64_BY_32(remainder32, dividend_ovl.part.lo, divisor, + quotient.part.lo, remainder32); + + /* Return only what was requested */ + + if (out_quotient) { + *out_quotient = quotient.full; + } + if (out_remainder) { + *out_remainder = remainder32; + } + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_divide + * + * PARAMETERS: in_dividend - Dividend + * in_divisor - Divisor + * out_quotient - Pointer to where the quotient is returned + * out_remainder - Pointer to where the remainder is returned + * + * RETURN: Status (Checks for divide-by-zero) + * + * DESCRIPTION: Perform a divide and modulo. + * + ******************************************************************************/ + +acpi_status +acpi_ut_divide(acpi_integer in_dividend, + acpi_integer in_divisor, + acpi_integer * out_quotient, acpi_integer * out_remainder) +{ + union uint64_overlay dividend; + union uint64_overlay divisor; + union uint64_overlay quotient; + union uint64_overlay remainder; + union uint64_overlay normalized_dividend; + union uint64_overlay normalized_divisor; + u32 partial1; + union uint64_overlay partial2; + union uint64_overlay partial3; + + ACPI_FUNCTION_TRACE(ut_divide); + + /* Always check for a zero divisor */ + + if (in_divisor == 0) { + ACPI_ERROR((AE_INFO, "Divide by zero")); + return_ACPI_STATUS(AE_AML_DIVIDE_BY_ZERO); + } + + divisor.full = in_divisor; + dividend.full = in_dividend; + if (divisor.part.hi == 0) { + /* + * 1) Simplest case is where the divisor is 32 bits, we can + * just do two divides + */ + remainder.part.hi = 0; + + /* + * The quotient is 64 bits, the remainder is always 32 bits, + * and is generated by the second divide. + */ + ACPI_DIV_64_BY_32(0, dividend.part.hi, divisor.part.lo, + quotient.part.hi, partial1); + ACPI_DIV_64_BY_32(partial1, dividend.part.lo, divisor.part.lo, + quotient.part.lo, remainder.part.lo); + } + + else { + /* + * 2) The general case where the divisor is a full 64 bits + * is more difficult + */ + quotient.part.hi = 0; + normalized_dividend = dividend; + normalized_divisor = divisor; + + /* Normalize the operands (shift until the divisor is < 32 bits) */ + + do { + ACPI_SHIFT_RIGHT_64(normalized_divisor.part.hi, + normalized_divisor.part.lo); + ACPI_SHIFT_RIGHT_64(normalized_dividend.part.hi, + normalized_dividend.part.lo); + + } while (normalized_divisor.part.hi != 0); + + /* Partial divide */ + + ACPI_DIV_64_BY_32(normalized_dividend.part.hi, + normalized_dividend.part.lo, + normalized_divisor.part.lo, + quotient.part.lo, partial1); + + /* + * The quotient is always 32 bits, and simply requires adjustment. + * The 64-bit remainder must be generated. + */ + partial1 = quotient.part.lo * divisor.part.hi; + partial2.full = + (acpi_integer) quotient.part.lo * divisor.part.lo; + partial3.full = (acpi_integer) partial2.part.hi + partial1; + + remainder.part.hi = partial3.part.lo; + remainder.part.lo = partial2.part.lo; + + if (partial3.part.hi == 0) { + if (partial3.part.lo >= dividend.part.hi) { + if (partial3.part.lo == dividend.part.hi) { + if (partial2.part.lo > dividend.part.lo) { + quotient.part.lo--; + remainder.full -= divisor.full; + } + } else { + quotient.part.lo--; + remainder.full -= divisor.full; + } + } + + remainder.full = remainder.full - dividend.full; + remainder.part.hi = (u32) - ((s32) remainder.part.hi); + remainder.part.lo = (u32) - ((s32) remainder.part.lo); + + if (remainder.part.lo) { + remainder.part.hi--; + } + } + } + + /* Return only what was requested */ + + if (out_quotient) { + *out_quotient = quotient.full; + } + if (out_remainder) { + *out_remainder = remainder.full; + } + + return_ACPI_STATUS(AE_OK); +} + +#else +/******************************************************************************* + * + * FUNCTION: acpi_ut_short_divide, acpi_ut_divide + * + * PARAMETERS: See function headers above + * + * DESCRIPTION: Native versions of the ut_divide functions. Use these if either + * 1) The target is a 64-bit platform and therefore 64-bit + * integer math is supported directly by the machine. + * 2) The target is a 32-bit or 16-bit platform, and the + * double-precision integer math library is available to + * perform the divide. + * + ******************************************************************************/ +acpi_status +acpi_ut_short_divide(acpi_integer in_dividend, + u32 divisor, + acpi_integer * out_quotient, u32 * out_remainder) +{ + + ACPI_FUNCTION_TRACE(ut_short_divide); + + /* Always check for a zero divisor */ + + if (divisor == 0) { + ACPI_ERROR((AE_INFO, "Divide by zero")); + return_ACPI_STATUS(AE_AML_DIVIDE_BY_ZERO); + } + + /* Return only what was requested */ + + if (out_quotient) { + *out_quotient = in_dividend / divisor; + } + if (out_remainder) { + *out_remainder = (u32) (in_dividend % divisor); + } + + return_ACPI_STATUS(AE_OK); +} + +acpi_status +acpi_ut_divide(acpi_integer in_dividend, + acpi_integer in_divisor, + acpi_integer * out_quotient, acpi_integer * out_remainder) +{ + ACPI_FUNCTION_TRACE(ut_divide); + + /* Always check for a zero divisor */ + + if (in_divisor == 0) { + ACPI_ERROR((AE_INFO, "Divide by zero")); + return_ACPI_STATUS(AE_AML_DIVIDE_BY_ZERO); + } + + /* Return only what was requested */ + + if (out_quotient) { + *out_quotient = in_dividend / in_divisor; + } + if (out_remainder) { + *out_remainder = in_dividend % in_divisor; + } + + return_ACPI_STATUS(AE_OK); +} + +#endif diff --git a/drivers/acpi/acpica/utmisc.c b/drivers/acpi/acpica/utmisc.c new file mode 100644 index 000000000000..8f8b407142ee --- /dev/null +++ b/drivers/acpi/acpica/utmisc.c @@ -0,0 +1,1093 @@ +/******************************************************************************* + * + * Module Name: utmisc - common utility procedures + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include + +#include +#include +#include + +#define _COMPONENT ACPI_UTILITIES +ACPI_MODULE_NAME("utmisc") + +/******************************************************************************* + * + * FUNCTION: acpi_ut_validate_exception + * + * PARAMETERS: Status - The acpi_status code to be formatted + * + * RETURN: A string containing the exception text. NULL if exception is + * not valid. + * + * DESCRIPTION: This function validates and translates an ACPI exception into + * an ASCII string. + * + ******************************************************************************/ +const char *acpi_ut_validate_exception(acpi_status status) +{ + u32 sub_status; + const char *exception = NULL; + + ACPI_FUNCTION_ENTRY(); + + /* + * Status is composed of two parts, a "type" and an actual code + */ + sub_status = (status & ~AE_CODE_MASK); + + switch (status & AE_CODE_MASK) { + case AE_CODE_ENVIRONMENTAL: + + if (sub_status <= AE_CODE_ENV_MAX) { + exception = acpi_gbl_exception_names_env[sub_status]; + } + break; + + case AE_CODE_PROGRAMMER: + + if (sub_status <= AE_CODE_PGM_MAX) { + exception = acpi_gbl_exception_names_pgm[sub_status]; + } + break; + + case AE_CODE_ACPI_TABLES: + + if (sub_status <= AE_CODE_TBL_MAX) { + exception = acpi_gbl_exception_names_tbl[sub_status]; + } + break; + + case AE_CODE_AML: + + if (sub_status <= AE_CODE_AML_MAX) { + exception = acpi_gbl_exception_names_aml[sub_status]; + } + break; + + case AE_CODE_CONTROL: + + if (sub_status <= AE_CODE_CTRL_MAX) { + exception = acpi_gbl_exception_names_ctrl[sub_status]; + } + break; + + default: + break; + } + + return (ACPI_CAST_PTR(const char, exception)); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_is_aml_table + * + * PARAMETERS: Table - An ACPI table + * + * RETURN: TRUE if table contains executable AML; FALSE otherwise + * + * DESCRIPTION: Check ACPI Signature for a table that contains AML code. + * Currently, these are DSDT,SSDT,PSDT. All other table types are + * data tables that do not contain AML code. + * + ******************************************************************************/ + +u8 acpi_ut_is_aml_table(struct acpi_table_header *table) +{ + + /* These are the only tables that contain executable AML */ + + if (ACPI_COMPARE_NAME(table->signature, ACPI_SIG_DSDT) || + ACPI_COMPARE_NAME(table->signature, ACPI_SIG_PSDT) || + ACPI_COMPARE_NAME(table->signature, ACPI_SIG_SSDT)) { + return (TRUE); + } + + return (FALSE); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_allocate_owner_id + * + * PARAMETERS: owner_id - Where the new owner ID is returned + * + * RETURN: Status + * + * DESCRIPTION: Allocate a table or method owner ID. The owner ID is used to + * track objects created by the table or method, to be deleted + * when the method exits or the table is unloaded. + * + ******************************************************************************/ + +acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id) +{ + u32 i; + u32 j; + u32 k; + acpi_status status; + + ACPI_FUNCTION_TRACE(ut_allocate_owner_id); + + /* Guard against multiple allocations of ID to the same location */ + + if (*owner_id) { + ACPI_ERROR((AE_INFO, "Owner ID [%2.2X] already exists", + *owner_id)); + return_ACPI_STATUS(AE_ALREADY_EXISTS); + } + + /* Mutex for the global ID mask */ + + status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * Find a free owner ID, cycle through all possible IDs on repeated + * allocations. (ACPI_NUM_OWNERID_MASKS + 1) because first index may have + * to be scanned twice. + */ + for (i = 0, j = acpi_gbl_last_owner_id_index; + i < (ACPI_NUM_OWNERID_MASKS + 1); i++, j++) { + if (j >= ACPI_NUM_OWNERID_MASKS) { + j = 0; /* Wraparound to start of mask array */ + } + + for (k = acpi_gbl_next_owner_id_offset; k < 32; k++) { + if (acpi_gbl_owner_id_mask[j] == ACPI_UINT32_MAX) { + + /* There are no free IDs in this mask */ + + break; + } + + if (!(acpi_gbl_owner_id_mask[j] & (1 << k))) { + /* + * Found a free ID. The actual ID is the bit index plus one, + * making zero an invalid Owner ID. Save this as the last ID + * allocated and update the global ID mask. + */ + acpi_gbl_owner_id_mask[j] |= (1 << k); + + acpi_gbl_last_owner_id_index = (u8) j; + acpi_gbl_next_owner_id_offset = (u8) (k + 1); + + /* + * Construct encoded ID from the index and bit position + * + * Note: Last [j].k (bit 255) is never used and is marked + * permanently allocated (prevents +1 overflow) + */ + *owner_id = + (acpi_owner_id) ((k + 1) + ACPI_MUL_32(j)); + + ACPI_DEBUG_PRINT((ACPI_DB_VALUES, + "Allocated OwnerId: %2.2X\n", + (unsigned int)*owner_id)); + goto exit; + } + } + + acpi_gbl_next_owner_id_offset = 0; + } + + /* + * All owner_ids have been allocated. This typically should + * not happen since the IDs are reused after deallocation. The IDs are + * allocated upon table load (one per table) and method execution, and + * they are released when a table is unloaded or a method completes + * execution. + * + * If this error happens, there may be very deep nesting of invoked control + * methods, or there may be a bug where the IDs are not released. + */ + status = AE_OWNER_ID_LIMIT; + ACPI_ERROR((AE_INFO, + "Could not allocate new OwnerId (255 max), AE_OWNER_ID_LIMIT")); + + exit: + (void)acpi_ut_release_mutex(ACPI_MTX_CACHES); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_release_owner_id + * + * PARAMETERS: owner_id_ptr - Pointer to a previously allocated owner_iD + * + * RETURN: None. No error is returned because we are either exiting a + * control method or unloading a table. Either way, we would + * ignore any error anyway. + * + * DESCRIPTION: Release a table or method owner ID. Valid IDs are 1 - 255 + * + ******************************************************************************/ + +void acpi_ut_release_owner_id(acpi_owner_id * owner_id_ptr) +{ + acpi_owner_id owner_id = *owner_id_ptr; + acpi_status status; + u32 index; + u32 bit; + + ACPI_FUNCTION_TRACE_U32(ut_release_owner_id, owner_id); + + /* Always clear the input owner_id (zero is an invalid ID) */ + + *owner_id_ptr = 0; + + /* Zero is not a valid owner_iD */ + + if (owner_id == 0) { + ACPI_ERROR((AE_INFO, "Invalid OwnerId: %2.2X", owner_id)); + return_VOID; + } + + /* Mutex for the global ID mask */ + + status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES); + if (ACPI_FAILURE(status)) { + return_VOID; + } + + /* Normalize the ID to zero */ + + owner_id--; + + /* Decode ID to index/offset pair */ + + index = ACPI_DIV_32(owner_id); + bit = 1 << ACPI_MOD_32(owner_id); + + /* Free the owner ID only if it is valid */ + + if (acpi_gbl_owner_id_mask[index] & bit) { + acpi_gbl_owner_id_mask[index] ^= bit; + } else { + ACPI_ERROR((AE_INFO, + "Release of non-allocated OwnerId: %2.2X", + owner_id + 1)); + } + + (void)acpi_ut_release_mutex(ACPI_MTX_CACHES); + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_strupr (strupr) + * + * PARAMETERS: src_string - The source string to convert + * + * RETURN: None + * + * DESCRIPTION: Convert string to uppercase + * + * NOTE: This is not a POSIX function, so it appears here, not in utclib.c + * + ******************************************************************************/ + +void acpi_ut_strupr(char *src_string) +{ + char *string; + + ACPI_FUNCTION_ENTRY(); + + if (!src_string) { + return; + } + + /* Walk entire string, uppercasing the letters */ + + for (string = src_string; *string; string++) { + *string = (char)ACPI_TOUPPER(*string); + } + + return; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_print_string + * + * PARAMETERS: String - Null terminated ASCII string + * max_length - Maximum output length + * + * RETURN: None + * + * DESCRIPTION: Dump an ASCII string with support for ACPI-defined escape + * sequences. + * + ******************************************************************************/ + +void acpi_ut_print_string(char *string, u8 max_length) +{ + u32 i; + + if (!string) { + acpi_os_printf("<\"NULL STRING PTR\">"); + return; + } + + acpi_os_printf("\""); + for (i = 0; string[i] && (i < max_length); i++) { + + /* Escape sequences */ + + switch (string[i]) { + case 0x07: + acpi_os_printf("\\a"); /* BELL */ + break; + + case 0x08: + acpi_os_printf("\\b"); /* BACKSPACE */ + break; + + case 0x0C: + acpi_os_printf("\\f"); /* FORMFEED */ + break; + + case 0x0A: + acpi_os_printf("\\n"); /* LINEFEED */ + break; + + case 0x0D: + acpi_os_printf("\\r"); /* CARRIAGE RETURN */ + break; + + case 0x09: + acpi_os_printf("\\t"); /* HORIZONTAL TAB */ + break; + + case 0x0B: + acpi_os_printf("\\v"); /* VERTICAL TAB */ + break; + + case '\'': /* Single Quote */ + case '\"': /* Double Quote */ + case '\\': /* Backslash */ + acpi_os_printf("\\%c", (int)string[i]); + break; + + default: + + /* Check for printable character or hex escape */ + + if (ACPI_IS_PRINT(string[i])) { + /* This is a normal character */ + + acpi_os_printf("%c", (int)string[i]); + } else { + /* All others will be Hex escapes */ + + acpi_os_printf("\\x%2.2X", (s32) string[i]); + } + break; + } + } + acpi_os_printf("\""); + + if (i == max_length && string[i]) { + acpi_os_printf("..."); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_dword_byte_swap + * + * PARAMETERS: Value - Value to be converted + * + * RETURN: u32 integer with bytes swapped + * + * DESCRIPTION: Convert a 32-bit value to big-endian (swap the bytes) + * + ******************************************************************************/ + +u32 acpi_ut_dword_byte_swap(u32 value) +{ + union { + u32 value; + u8 bytes[4]; + } out; + union { + u32 value; + u8 bytes[4]; + } in; + + ACPI_FUNCTION_ENTRY(); + + in.value = value; + + out.bytes[0] = in.bytes[3]; + out.bytes[1] = in.bytes[2]; + out.bytes[2] = in.bytes[1]; + out.bytes[3] = in.bytes[0]; + + return (out.value); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_set_integer_width + * + * PARAMETERS: Revision From DSDT header + * + * RETURN: None + * + * DESCRIPTION: Set the global integer bit width based upon the revision + * of the DSDT. For Revision 1 and 0, Integers are 32 bits. + * For Revision 2 and above, Integers are 64 bits. Yes, this + * makes a difference. + * + ******************************************************************************/ + +void acpi_ut_set_integer_width(u8 revision) +{ + + if (revision < 2) { + + /* 32-bit case */ + + acpi_gbl_integer_bit_width = 32; + acpi_gbl_integer_nybble_width = 8; + acpi_gbl_integer_byte_width = 4; + } else { + /* 64-bit case (ACPI 2.0+) */ + + acpi_gbl_integer_bit_width = 64; + acpi_gbl_integer_nybble_width = 16; + acpi_gbl_integer_byte_width = 8; + } +} + +#ifdef ACPI_DEBUG_OUTPUT +/******************************************************************************* + * + * FUNCTION: acpi_ut_display_init_pathname + * + * PARAMETERS: Type - Object type of the node + * obj_handle - Handle whose pathname will be displayed + * Path - Additional path string to be appended. + * (NULL if no extra path) + * + * RETURN: acpi_status + * + * DESCRIPTION: Display full pathname of an object, DEBUG ONLY + * + ******************************************************************************/ + +void +acpi_ut_display_init_pathname(u8 type, + struct acpi_namespace_node *obj_handle, + char *path) +{ + acpi_status status; + struct acpi_buffer buffer; + + ACPI_FUNCTION_ENTRY(); + + /* Only print the path if the appropriate debug level is enabled */ + + if (!(acpi_dbg_level & ACPI_LV_INIT_NAMES)) { + return; + } + + /* Get the full pathname to the node */ + + buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; + status = acpi_ns_handle_to_pathname(obj_handle, &buffer); + if (ACPI_FAILURE(status)) { + return; + } + + /* Print what we're doing */ + + switch (type) { + case ACPI_TYPE_METHOD: + acpi_os_printf("Executing "); + break; + + default: + acpi_os_printf("Initializing "); + break; + } + + /* Print the object type and pathname */ + + acpi_os_printf("%-12s %s", + acpi_ut_get_type_name(type), (char *)buffer.pointer); + + /* Extra path is used to append names like _STA, _INI, etc. */ + + if (path) { + acpi_os_printf(".%s", path); + } + acpi_os_printf("\n"); + + ACPI_FREE(buffer.pointer); +} +#endif + +/******************************************************************************* + * + * FUNCTION: acpi_ut_valid_acpi_char + * + * PARAMETERS: Char - The character to be examined + * Position - Byte position (0-3) + * + * RETURN: TRUE if the character is valid, FALSE otherwise + * + * DESCRIPTION: Check for a valid ACPI character. Must be one of: + * 1) Upper case alpha + * 2) numeric + * 3) underscore + * + * We allow a '!' as the last character because of the ASF! table + * + ******************************************************************************/ + +u8 acpi_ut_valid_acpi_char(char character, u32 position) +{ + + if (!((character >= 'A' && character <= 'Z') || + (character >= '0' && character <= '9') || (character == '_'))) { + + /* Allow a '!' in the last position */ + + if (character == '!' && position == 3) { + return (TRUE); + } + + return (FALSE); + } + + return (TRUE); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_valid_acpi_name + * + * PARAMETERS: Name - The name to be examined + * + * RETURN: TRUE if the name is valid, FALSE otherwise + * + * DESCRIPTION: Check for a valid ACPI name. Each character must be one of: + * 1) Upper case alpha + * 2) numeric + * 3) underscore + * + ******************************************************************************/ + +u8 acpi_ut_valid_acpi_name(u32 name) +{ + u32 i; + + ACPI_FUNCTION_ENTRY(); + + for (i = 0; i < ACPI_NAME_SIZE; i++) { + if (!acpi_ut_valid_acpi_char + ((ACPI_CAST_PTR(char, &name))[i], i)) { + return (FALSE); + } + } + + return (TRUE); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_repair_name + * + * PARAMETERS: Name - The ACPI name to be repaired + * + * RETURN: Repaired version of the name + * + * DESCRIPTION: Repair an ACPI name: Change invalid characters to '*' and + * return the new name. + * + ******************************************************************************/ + +acpi_name acpi_ut_repair_name(char *name) +{ + u32 i; + char new_name[ACPI_NAME_SIZE]; + + for (i = 0; i < ACPI_NAME_SIZE; i++) { + new_name[i] = name[i]; + + /* + * Replace a bad character with something printable, yet technically + * still invalid. This prevents any collisions with existing "good" + * names in the namespace. + */ + if (!acpi_ut_valid_acpi_char(name[i], i)) { + new_name[i] = '*'; + } + } + + return (*(u32 *) new_name); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_strtoul64 + * + * PARAMETERS: String - Null terminated string + * Base - Radix of the string: 16 or ACPI_ANY_BASE; + * ACPI_ANY_BASE means 'in behalf of to_integer' + * ret_integer - Where the converted integer is returned + * + * RETURN: Status and Converted value + * + * DESCRIPTION: Convert a string into an unsigned value. Performs either a + * 32-bit or 64-bit conversion, depending on the current mode + * of the interpreter. + * NOTE: Does not support Octal strings, not needed. + * + ******************************************************************************/ + +acpi_status +acpi_ut_strtoul64(char *string, u32 base, acpi_integer * ret_integer) +{ + u32 this_digit = 0; + acpi_integer return_value = 0; + acpi_integer quotient; + acpi_integer dividend; + u32 to_integer_op = (base == ACPI_ANY_BASE); + u32 mode32 = (acpi_gbl_integer_byte_width == 4); + u8 valid_digits = 0; + u8 sign_of0x = 0; + u8 term = 0; + + ACPI_FUNCTION_TRACE_STR(ut_stroul64, string); + + switch (base) { + case ACPI_ANY_BASE: + case 16: + break; + + default: + /* Invalid Base */ + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + if (!string) { + goto error_exit; + } + + /* Skip over any white space in the buffer */ + + while ((*string) && (ACPI_IS_SPACE(*string) || *string == '\t')) { + string++; + } + + if (to_integer_op) { + /* + * Base equal to ACPI_ANY_BASE means 'to_integer operation case'. + * We need to determine if it is decimal or hexadecimal. + */ + if ((*string == '0') && (ACPI_TOLOWER(*(string + 1)) == 'x')) { + sign_of0x = 1; + base = 16; + + /* Skip over the leading '0x' */ + string += 2; + } else { + base = 10; + } + } + + /* Any string left? Check that '0x' is not followed by white space. */ + + if (!(*string) || ACPI_IS_SPACE(*string) || *string == '\t') { + if (to_integer_op) { + goto error_exit; + } else { + goto all_done; + } + } + + /* + * Perform a 32-bit or 64-bit conversion, depending upon the current + * execution mode of the interpreter + */ + dividend = (mode32) ? ACPI_UINT32_MAX : ACPI_UINT64_MAX; + + /* Main loop: convert the string to a 32- or 64-bit integer */ + + while (*string) { + if (ACPI_IS_DIGIT(*string)) { + + /* Convert ASCII 0-9 to Decimal value */ + + this_digit = ((u8) * string) - '0'; + } else if (base == 10) { + + /* Digit is out of range; possible in to_integer case only */ + + term = 1; + } else { + this_digit = (u8) ACPI_TOUPPER(*string); + if (ACPI_IS_XDIGIT((char)this_digit)) { + + /* Convert ASCII Hex char to value */ + + this_digit = this_digit - 'A' + 10; + } else { + term = 1; + } + } + + if (term) { + if (to_integer_op) { + goto error_exit; + } else { + break; + } + } else if ((valid_digits == 0) && (this_digit == 0) + && !sign_of0x) { + + /* Skip zeros */ + string++; + continue; + } + + valid_digits++; + + if (sign_of0x && ((valid_digits > 16) + || ((valid_digits > 8) && mode32))) { + /* + * This is to_integer operation case. + * No any restrictions for string-to-integer conversion, + * see ACPI spec. + */ + goto error_exit; + } + + /* Divide the digit into the correct position */ + + (void) + acpi_ut_short_divide((dividend - (acpi_integer) this_digit), + base, "ient, NULL); + + if (return_value > quotient) { + if (to_integer_op) { + goto error_exit; + } else { + break; + } + } + + return_value *= base; + return_value += this_digit; + string++; + } + + /* All done, normal exit */ + + all_done: + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Converted value: %8.8X%8.8X\n", + ACPI_FORMAT_UINT64(return_value))); + + *ret_integer = return_value; + return_ACPI_STATUS(AE_OK); + + error_exit: + /* Base was set/validated above */ + + if (base == 10) { + return_ACPI_STATUS(AE_BAD_DECIMAL_CONSTANT); + } else { + return_ACPI_STATUS(AE_BAD_HEX_CONSTANT); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_create_update_state_and_push + * + * PARAMETERS: Object - Object to be added to the new state + * Action - Increment/Decrement + * state_list - List the state will be added to + * + * RETURN: Status + * + * DESCRIPTION: Create a new state and push it + * + ******************************************************************************/ + +acpi_status +acpi_ut_create_update_state_and_push(union acpi_operand_object *object, + u16 action, + union acpi_generic_state **state_list) +{ + union acpi_generic_state *state; + + ACPI_FUNCTION_ENTRY(); + + /* Ignore null objects; these are expected */ + + if (!object) { + return (AE_OK); + } + + state = acpi_ut_create_update_state(object, action); + if (!state) { + return (AE_NO_MEMORY); + } + + acpi_ut_push_generic_state(state_list, state); + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_walk_package_tree + * + * PARAMETERS: source_object - The package to walk + * target_object - Target object (if package is being copied) + * walk_callback - Called once for each package element + * Context - Passed to the callback function + * + * RETURN: Status + * + * DESCRIPTION: Walk through a package + * + ******************************************************************************/ + +acpi_status +acpi_ut_walk_package_tree(union acpi_operand_object * source_object, + void *target_object, + acpi_pkg_callback walk_callback, void *context) +{ + acpi_status status = AE_OK; + union acpi_generic_state *state_list = NULL; + union acpi_generic_state *state; + u32 this_index; + union acpi_operand_object *this_source_obj; + + ACPI_FUNCTION_TRACE(ut_walk_package_tree); + + state = acpi_ut_create_pkg_state(source_object, target_object, 0); + if (!state) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + while (state) { + + /* Get one element of the package */ + + this_index = state->pkg.index; + this_source_obj = (union acpi_operand_object *) + state->pkg.source_object->package.elements[this_index]; + + /* + * Check for: + * 1) An uninitialized package element. It is completely + * legal to declare a package and leave it uninitialized + * 2) Not an internal object - can be a namespace node instead + * 3) Any type other than a package. Packages are handled in else + * case below. + */ + if ((!this_source_obj) || + (ACPI_GET_DESCRIPTOR_TYPE(this_source_obj) != + ACPI_DESC_TYPE_OPERAND) + || (ACPI_GET_OBJECT_TYPE(this_source_obj) != + ACPI_TYPE_PACKAGE)) { + status = + walk_callback(ACPI_COPY_TYPE_SIMPLE, + this_source_obj, state, context); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + state->pkg.index++; + while (state->pkg.index >= + state->pkg.source_object->package.count) { + /* + * We've handled all of the objects at this level, This means + * that we have just completed a package. That package may + * have contained one or more packages itself. + * + * Delete this state and pop the previous state (package). + */ + acpi_ut_delete_generic_state(state); + state = acpi_ut_pop_generic_state(&state_list); + + /* Finished when there are no more states */ + + if (!state) { + /* + * We have handled all of the objects in the top level + * package just add the length of the package objects + * and exit + */ + return_ACPI_STATUS(AE_OK); + } + + /* + * Go back up a level and move the index past the just + * completed package object. + */ + state->pkg.index++; + } + } else { + /* This is a subobject of type package */ + + status = + walk_callback(ACPI_COPY_TYPE_PACKAGE, + this_source_obj, state, context); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * Push the current state and create a new one + * The callback above returned a new target package object. + */ + acpi_ut_push_generic_state(&state_list, state); + state = acpi_ut_create_pkg_state(this_source_obj, + state->pkg. + this_target_obj, 0); + if (!state) { + + /* Free any stacked Update State objects */ + + while (state_list) { + state = + acpi_ut_pop_generic_state + (&state_list); + acpi_ut_delete_generic_state(state); + } + return_ACPI_STATUS(AE_NO_MEMORY); + } + } + } + + /* We should never get here */ + + return_ACPI_STATUS(AE_AML_INTERNAL); +} + +/******************************************************************************* + * + * FUNCTION: acpi_error, acpi_exception, acpi_warning, acpi_info + * + * PARAMETERS: module_name - Caller's module name (for error output) + * line_number - Caller's line number (for error output) + * Format - Printf format string + additional args + * + * RETURN: None + * + * DESCRIPTION: Print message with module/line/version info + * + ******************************************************************************/ + +void ACPI_INTERNAL_VAR_XFACE +acpi_error(const char *module_name, u32 line_number, const char *format, ...) +{ + va_list args; + + acpi_os_printf("ACPI Error (%s-%04d): ", module_name, line_number); + + va_start(args, format); + acpi_os_vprintf(format, args); + acpi_os_printf(" [%X]\n", ACPI_CA_VERSION); + va_end(args); +} + +void ACPI_INTERNAL_VAR_XFACE +acpi_exception(const char *module_name, + u32 line_number, acpi_status status, const char *format, ...) +{ + va_list args; + + acpi_os_printf("ACPI Exception (%s-%04d): %s, ", module_name, + line_number, acpi_format_exception(status)); + + va_start(args, format); + acpi_os_vprintf(format, args); + acpi_os_printf(" [%X]\n", ACPI_CA_VERSION); + va_end(args); +} + +void ACPI_INTERNAL_VAR_XFACE +acpi_warning(const char *module_name, u32 line_number, const char *format, ...) +{ + va_list args; + + acpi_os_printf("ACPI Warning (%s-%04d): ", module_name, line_number); + + va_start(args, format); + acpi_os_vprintf(format, args); + acpi_os_printf(" [%X]\n", ACPI_CA_VERSION); + va_end(args); +} + +void ACPI_INTERNAL_VAR_XFACE +acpi_info(const char *module_name, u32 line_number, const char *format, ...) +{ + va_list args; + + /* + * Removed module_name, line_number, and acpica version, not needed + * for info output + */ + acpi_os_printf("ACPI: "); + + va_start(args, format); + acpi_os_vprintf(format, args); + acpi_os_printf("\n"); + va_end(args); +} + +ACPI_EXPORT_SYMBOL(acpi_error) +ACPI_EXPORT_SYMBOL(acpi_exception) +ACPI_EXPORT_SYMBOL(acpi_warning) +ACPI_EXPORT_SYMBOL(acpi_info) diff --git a/drivers/acpi/acpica/utmutex.c b/drivers/acpi/acpica/utmutex.c new file mode 100644 index 000000000000..7b48ba3f3f8a --- /dev/null +++ b/drivers/acpi/acpica/utmutex.c @@ -0,0 +1,342 @@ +/******************************************************************************* + * + * Module Name: utmutex - local mutex support + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include + +#define _COMPONENT ACPI_UTILITIES +ACPI_MODULE_NAME("utmutex") + +/* Local prototypes */ +static acpi_status acpi_ut_create_mutex(acpi_mutex_handle mutex_id); + +static acpi_status acpi_ut_delete_mutex(acpi_mutex_handle mutex_id); + +/******************************************************************************* + * + * FUNCTION: acpi_ut_mutex_initialize + * + * PARAMETERS: None. + * + * RETURN: Status + * + * DESCRIPTION: Create the system mutex objects. + * + ******************************************************************************/ + +acpi_status acpi_ut_mutex_initialize(void) +{ + u32 i; + acpi_status status; + + ACPI_FUNCTION_TRACE(ut_mutex_initialize); + + /* + * Create each of the predefined mutex objects + */ + for (i = 0; i < ACPI_NUM_MUTEX; i++) { + status = acpi_ut_create_mutex(i); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + + /* Create the spinlocks for use at interrupt level */ + + spin_lock_init(acpi_gbl_gpe_lock); + spin_lock_init(acpi_gbl_hardware_lock); + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_mutex_terminate + * + * PARAMETERS: None. + * + * RETURN: None. + * + * DESCRIPTION: Delete all of the system mutex objects. + * + ******************************************************************************/ + +void acpi_ut_mutex_terminate(void) +{ + u32 i; + + ACPI_FUNCTION_TRACE(ut_mutex_terminate); + + /* + * Delete each predefined mutex object + */ + for (i = 0; i < ACPI_NUM_MUTEX; i++) { + (void)acpi_ut_delete_mutex(i); + } + + /* Delete the spinlocks */ + + acpi_os_delete_lock(acpi_gbl_gpe_lock); + acpi_os_delete_lock(acpi_gbl_hardware_lock); + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_create_mutex + * + * PARAMETERS: mutex_iD - ID of the mutex to be created + * + * RETURN: Status + * + * DESCRIPTION: Create a mutex object. + * + ******************************************************************************/ + +static acpi_status acpi_ut_create_mutex(acpi_mutex_handle mutex_id) +{ + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE_U32(ut_create_mutex, mutex_id); + + if (mutex_id > ACPI_MAX_MUTEX) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + if (!acpi_gbl_mutex_info[mutex_id].mutex) { + status = + acpi_os_create_mutex(&acpi_gbl_mutex_info[mutex_id].mutex); + acpi_gbl_mutex_info[mutex_id].thread_id = + ACPI_MUTEX_NOT_ACQUIRED; + acpi_gbl_mutex_info[mutex_id].use_count = 0; + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_delete_mutex + * + * PARAMETERS: mutex_iD - ID of the mutex to be deleted + * + * RETURN: Status + * + * DESCRIPTION: Delete a mutex object. + * + ******************************************************************************/ + +static acpi_status acpi_ut_delete_mutex(acpi_mutex_handle mutex_id) +{ + + ACPI_FUNCTION_TRACE_U32(ut_delete_mutex, mutex_id); + + if (mutex_id > ACPI_MAX_MUTEX) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + acpi_os_delete_mutex(acpi_gbl_mutex_info[mutex_id].mutex); + + acpi_gbl_mutex_info[mutex_id].mutex = NULL; + acpi_gbl_mutex_info[mutex_id].thread_id = ACPI_MUTEX_NOT_ACQUIRED; + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_acquire_mutex + * + * PARAMETERS: mutex_iD - ID of the mutex to be acquired + * + * RETURN: Status + * + * DESCRIPTION: Acquire a mutex object. + * + ******************************************************************************/ + +acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id) +{ + acpi_status status; + acpi_thread_id this_thread_id; + + ACPI_FUNCTION_NAME(ut_acquire_mutex); + + if (mutex_id > ACPI_MAX_MUTEX) { + return (AE_BAD_PARAMETER); + } + + this_thread_id = acpi_os_get_thread_id(); + +#ifdef ACPI_MUTEX_DEBUG + { + u32 i; + /* + * Mutex debug code, for internal debugging only. + * + * Deadlock prevention. Check if this thread owns any mutexes of value + * greater than or equal to this one. If so, the thread has violated + * the mutex ordering rule. This indicates a coding error somewhere in + * the ACPI subsystem code. + */ + for (i = mutex_id; i < ACPI_NUM_MUTEX; i++) { + if (acpi_gbl_mutex_info[i].thread_id == this_thread_id) { + if (i == mutex_id) { + ACPI_ERROR((AE_INFO, + "Mutex [%s] already acquired by this thread [%X]", + acpi_ut_get_mutex_name + (mutex_id), + this_thread_id)); + + return (AE_ALREADY_ACQUIRED); + } + + ACPI_ERROR((AE_INFO, + "Invalid acquire order: Thread %X owns [%s], wants [%s]", + this_thread_id, + acpi_ut_get_mutex_name(i), + acpi_ut_get_mutex_name(mutex_id))); + + return (AE_ACQUIRE_DEADLOCK); + } + } + } +#endif + + ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, + "Thread %lX attempting to acquire Mutex [%s]\n", + (unsigned long)this_thread_id, + acpi_ut_get_mutex_name(mutex_id))); + + status = acpi_os_acquire_mutex(acpi_gbl_mutex_info[mutex_id].mutex, + ACPI_WAIT_FOREVER); + if (ACPI_SUCCESS(status)) { + ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, + "Thread %lX acquired Mutex [%s]\n", + (unsigned long)this_thread_id, + acpi_ut_get_mutex_name(mutex_id))); + + acpi_gbl_mutex_info[mutex_id].use_count++; + acpi_gbl_mutex_info[mutex_id].thread_id = this_thread_id; + } else { + ACPI_EXCEPTION((AE_INFO, status, + "Thread %lX could not acquire Mutex [%X]", + (unsigned long)this_thread_id, mutex_id)); + } + + return (status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_release_mutex + * + * PARAMETERS: mutex_iD - ID of the mutex to be released + * + * RETURN: Status + * + * DESCRIPTION: Release a mutex object. + * + ******************************************************************************/ + +acpi_status acpi_ut_release_mutex(acpi_mutex_handle mutex_id) +{ + acpi_thread_id this_thread_id; + + ACPI_FUNCTION_NAME(ut_release_mutex); + + this_thread_id = acpi_os_get_thread_id(); + ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, + "Thread %lX releasing Mutex [%s]\n", + (unsigned long)this_thread_id, + acpi_ut_get_mutex_name(mutex_id))); + + if (mutex_id > ACPI_MAX_MUTEX) { + return (AE_BAD_PARAMETER); + } + + /* + * Mutex must be acquired in order to release it! + */ + if (acpi_gbl_mutex_info[mutex_id].thread_id == ACPI_MUTEX_NOT_ACQUIRED) { + ACPI_ERROR((AE_INFO, + "Mutex [%X] is not acquired, cannot release", + mutex_id)); + + return (AE_NOT_ACQUIRED); + } +#ifdef ACPI_MUTEX_DEBUG + { + u32 i; + /* + * Mutex debug code, for internal debugging only. + * + * Deadlock prevention. Check if this thread owns any mutexes of value + * greater than this one. If so, the thread has violated the mutex + * ordering rule. This indicates a coding error somewhere in + * the ACPI subsystem code. + */ + for (i = mutex_id; i < ACPI_NUM_MUTEX; i++) { + if (acpi_gbl_mutex_info[i].thread_id == this_thread_id) { + if (i == mutex_id) { + continue; + } + + ACPI_ERROR((AE_INFO, + "Invalid release order: owns [%s], releasing [%s]", + acpi_ut_get_mutex_name(i), + acpi_ut_get_mutex_name(mutex_id))); + + return (AE_RELEASE_DEADLOCK); + } + } + } +#endif + + /* Mark unlocked FIRST */ + + acpi_gbl_mutex_info[mutex_id].thread_id = ACPI_MUTEX_NOT_ACQUIRED; + + acpi_os_release_mutex(acpi_gbl_mutex_info[mutex_id].mutex); + return (AE_OK); +} diff --git a/drivers/acpi/acpica/utobject.c b/drivers/acpi/acpica/utobject.c new file mode 100644 index 000000000000..964b23c11610 --- /dev/null +++ b/drivers/acpi/acpica/utobject.c @@ -0,0 +1,677 @@ +/****************************************************************************** + * + * Module Name: utobject - ACPI object create/delete/size/cache routines + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_UTILITIES +ACPI_MODULE_NAME("utobject") + +/* Local prototypes */ +static acpi_status +acpi_ut_get_simple_object_size(union acpi_operand_object *obj, + acpi_size * obj_length); + +static acpi_status +acpi_ut_get_package_object_size(union acpi_operand_object *obj, + acpi_size * obj_length); + +static acpi_status +acpi_ut_get_element_length(u8 object_type, + union acpi_operand_object *source_object, + union acpi_generic_state *state, void *context); + +/******************************************************************************* + * + * FUNCTION: acpi_ut_create_internal_object_dbg + * + * PARAMETERS: module_name - Source file name of caller + * line_number - Line number of caller + * component_id - Component type of caller + * Type - ACPI Type of the new object + * + * RETURN: A new internal object, null on failure + * + * DESCRIPTION: Create and initialize a new internal object. + * + * NOTE: We always allocate the worst-case object descriptor because + * these objects are cached, and we want them to be + * one-size-satisifies-any-request. This in itself may not be + * the most memory efficient, but the efficiency of the object + * cache should more than make up for this! + * + ******************************************************************************/ + +union acpi_operand_object *acpi_ut_create_internal_object_dbg(const char + *module_name, + u32 line_number, + u32 component_id, + acpi_object_type + type) +{ + union acpi_operand_object *object; + union acpi_operand_object *second_object; + + ACPI_FUNCTION_TRACE_STR(ut_create_internal_object_dbg, + acpi_ut_get_type_name(type)); + + /* Allocate the raw object descriptor */ + + object = + acpi_ut_allocate_object_desc_dbg(module_name, line_number, + component_id); + if (!object) { + return_PTR(NULL); + } + + switch (type) { + case ACPI_TYPE_REGION: + case ACPI_TYPE_BUFFER_FIELD: + case ACPI_TYPE_LOCAL_BANK_FIELD: + + /* These types require a secondary object */ + + second_object = acpi_ut_allocate_object_desc_dbg(module_name, + line_number, + component_id); + if (!second_object) { + acpi_ut_delete_object_desc(object); + return_PTR(NULL); + } + + second_object->common.type = ACPI_TYPE_LOCAL_EXTRA; + second_object->common.reference_count = 1; + + /* Link the second object to the first */ + + object->common.next_object = second_object; + break; + + default: + /* All others have no secondary object */ + break; + } + + /* Save the object type in the object descriptor */ + + object->common.type = (u8) type; + + /* Init the reference count */ + + object->common.reference_count = 1; + + /* Any per-type initialization should go here */ + + return_PTR(object); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_create_package_object + * + * PARAMETERS: Count - Number of package elements + * + * RETURN: Pointer to a new Package object, null on failure + * + * DESCRIPTION: Create a fully initialized package object + * + ******************************************************************************/ + +union acpi_operand_object *acpi_ut_create_package_object(u32 count) +{ + union acpi_operand_object *package_desc; + union acpi_operand_object **package_elements; + + ACPI_FUNCTION_TRACE_U32(ut_create_package_object, count); + + /* Create a new Package object */ + + package_desc = acpi_ut_create_internal_object(ACPI_TYPE_PACKAGE); + if (!package_desc) { + return_PTR(NULL); + } + + /* + * Create the element array. Count+1 allows the array to be null + * terminated. + */ + package_elements = ACPI_ALLOCATE_ZEROED(((acpi_size) count + + 1) * sizeof(void *)); + if (!package_elements) { + acpi_ut_remove_reference(package_desc); + return_PTR(NULL); + } + + package_desc->package.count = count; + package_desc->package.elements = package_elements; + return_PTR(package_desc); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_create_buffer_object + * + * PARAMETERS: buffer_size - Size of buffer to be created + * + * RETURN: Pointer to a new Buffer object, null on failure + * + * DESCRIPTION: Create a fully initialized buffer object + * + ******************************************************************************/ + +union acpi_operand_object *acpi_ut_create_buffer_object(acpi_size buffer_size) +{ + union acpi_operand_object *buffer_desc; + u8 *buffer = NULL; + + ACPI_FUNCTION_TRACE_U32(ut_create_buffer_object, buffer_size); + + /* Create a new Buffer object */ + + buffer_desc = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER); + if (!buffer_desc) { + return_PTR(NULL); + } + + /* Create an actual buffer only if size > 0 */ + + if (buffer_size > 0) { + + /* Allocate the actual buffer */ + + buffer = ACPI_ALLOCATE_ZEROED(buffer_size); + if (!buffer) { + ACPI_ERROR((AE_INFO, "Could not allocate size %X", + (u32) buffer_size)); + acpi_ut_remove_reference(buffer_desc); + return_PTR(NULL); + } + } + + /* Complete buffer object initialization */ + + buffer_desc->buffer.flags |= AOPOBJ_DATA_VALID; + buffer_desc->buffer.pointer = buffer; + buffer_desc->buffer.length = (u32) buffer_size; + + /* Return the new buffer descriptor */ + + return_PTR(buffer_desc); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_create_string_object + * + * PARAMETERS: string_size - Size of string to be created. Does not + * include NULL terminator, this is added + * automatically. + * + * RETURN: Pointer to a new String object + * + * DESCRIPTION: Create a fully initialized string object + * + ******************************************************************************/ + +union acpi_operand_object *acpi_ut_create_string_object(acpi_size string_size) +{ + union acpi_operand_object *string_desc; + char *string; + + ACPI_FUNCTION_TRACE_U32(ut_create_string_object, string_size); + + /* Create a new String object */ + + string_desc = acpi_ut_create_internal_object(ACPI_TYPE_STRING); + if (!string_desc) { + return_PTR(NULL); + } + + /* + * Allocate the actual string buffer -- (Size + 1) for NULL terminator. + * NOTE: Zero-length strings are NULL terminated + */ + string = ACPI_ALLOCATE_ZEROED(string_size + 1); + if (!string) { + ACPI_ERROR((AE_INFO, "Could not allocate size %X", + (u32) string_size)); + acpi_ut_remove_reference(string_desc); + return_PTR(NULL); + } + + /* Complete string object initialization */ + + string_desc->string.pointer = string; + string_desc->string.length = (u32) string_size; + + /* Return the new string descriptor */ + + return_PTR(string_desc); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_valid_internal_object + * + * PARAMETERS: Object - Object to be validated + * + * RETURN: TRUE if object is valid, FALSE otherwise + * + * DESCRIPTION: Validate a pointer to be an union acpi_operand_object + * + ******************************************************************************/ + +u8 acpi_ut_valid_internal_object(void *object) +{ + + ACPI_FUNCTION_NAME(ut_valid_internal_object); + + /* Check for a null pointer */ + + if (!object) { + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "**** Null Object Ptr\n")); + return (FALSE); + } + + /* Check the descriptor type field */ + + switch (ACPI_GET_DESCRIPTOR_TYPE(object)) { + case ACPI_DESC_TYPE_OPERAND: + + /* The object appears to be a valid union acpi_operand_object */ + + return (TRUE); + + default: + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "%p is not not an ACPI operand obj [%s]\n", + object, acpi_ut_get_descriptor_name(object))); + break; + } + + return (FALSE); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_allocate_object_desc_dbg + * + * PARAMETERS: module_name - Caller's module name (for error output) + * line_number - Caller's line number (for error output) + * component_id - Caller's component ID (for error output) + * + * RETURN: Pointer to newly allocated object descriptor. Null on error + * + * DESCRIPTION: Allocate a new object descriptor. Gracefully handle + * error conditions. + * + ******************************************************************************/ + +void *acpi_ut_allocate_object_desc_dbg(const char *module_name, + u32 line_number, u32 component_id) +{ + union acpi_operand_object *object; + + ACPI_FUNCTION_TRACE(ut_allocate_object_desc_dbg); + + object = acpi_os_acquire_object(acpi_gbl_operand_cache); + if (!object) { + ACPI_ERROR((module_name, line_number, + "Could not allocate an object descriptor")); + + return_PTR(NULL); + } + + /* Mark the descriptor type */ + + memset(object, 0, sizeof(union acpi_operand_object)); + ACPI_SET_DESCRIPTOR_TYPE(object, ACPI_DESC_TYPE_OPERAND); + + ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "%p Size %X\n", + object, (u32) sizeof(union acpi_operand_object))); + + return_PTR(object); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_delete_object_desc + * + * PARAMETERS: Object - An Acpi internal object to be deleted + * + * RETURN: None. + * + * DESCRIPTION: Free an ACPI object descriptor or add it to the object cache + * + ******************************************************************************/ + +void acpi_ut_delete_object_desc(union acpi_operand_object *object) +{ + ACPI_FUNCTION_TRACE_PTR(ut_delete_object_desc, object); + + /* Object must be an union acpi_operand_object */ + + if (ACPI_GET_DESCRIPTOR_TYPE(object) != ACPI_DESC_TYPE_OPERAND) { + ACPI_ERROR((AE_INFO, + "%p is not an ACPI Operand object [%s]", object, + acpi_ut_get_descriptor_name(object))); + return_VOID; + } + + (void)acpi_os_release_object(acpi_gbl_operand_cache, object); + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_get_simple_object_size + * + * PARAMETERS: internal_object - An ACPI operand object + * obj_length - Where the length is returned + * + * RETURN: Status + * + * DESCRIPTION: This function is called to determine the space required to + * contain a simple object for return to an external user. + * + * The length includes the object structure plus any additional + * needed space. + * + ******************************************************************************/ + +static acpi_status +acpi_ut_get_simple_object_size(union acpi_operand_object *internal_object, + acpi_size * obj_length) +{ + acpi_size length; + acpi_size size; + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE_PTR(ut_get_simple_object_size, internal_object); + + /* + * Handle a null object (Could be a uninitialized package + * element -- which is legal) + */ + if (!internal_object) { + *obj_length = sizeof(union acpi_object); + return_ACPI_STATUS(AE_OK); + } + + /* Start with the length of the Acpi object */ + + length = sizeof(union acpi_object); + + if (ACPI_GET_DESCRIPTOR_TYPE(internal_object) == ACPI_DESC_TYPE_NAMED) { + + /* Object is a named object (reference), just return the length */ + + *obj_length = ACPI_ROUND_UP_TO_NATIVE_WORD(length); + return_ACPI_STATUS(status); + } + + /* + * The final length depends on the object type + * Strings and Buffers are packed right up against the parent object and + * must be accessed bytewise or there may be alignment problems on + * certain processors + */ + switch (ACPI_GET_OBJECT_TYPE(internal_object)) { + case ACPI_TYPE_STRING: + + length += (acpi_size) internal_object->string.length + 1; + break; + + case ACPI_TYPE_BUFFER: + + length += (acpi_size) internal_object->buffer.length; + break; + + case ACPI_TYPE_INTEGER: + case ACPI_TYPE_PROCESSOR: + case ACPI_TYPE_POWER: + + /* No extra data for these types */ + + break; + + case ACPI_TYPE_LOCAL_REFERENCE: + + switch (internal_object->reference.class) { + case ACPI_REFCLASS_NAME: + + /* + * Get the actual length of the full pathname to this object. + * The reference will be converted to the pathname to the object + */ + size = + acpi_ns_get_pathname_length(internal_object-> + reference.node); + if (!size) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + length += ACPI_ROUND_UP_TO_NATIVE_WORD(size); + break; + + default: + + /* + * No other reference opcodes are supported. + * Notably, Locals and Args are not supported, but this may be + * required eventually. + */ + ACPI_ERROR((AE_INFO, + "Cannot convert to external object - " + "unsupported Reference Class [%s] %X in object %p", + acpi_ut_get_reference_name(internal_object), + internal_object->reference.class, + internal_object)); + status = AE_TYPE; + break; + } + break; + + default: + + ACPI_ERROR((AE_INFO, "Cannot convert to external object - " + "unsupported type [%s] %X in object %p", + acpi_ut_get_object_type_name(internal_object), + ACPI_GET_OBJECT_TYPE(internal_object), + internal_object)); + status = AE_TYPE; + break; + } + + /* + * Account for the space required by the object rounded up to the next + * multiple of the machine word size. This keeps each object aligned + * on a machine word boundary. (preventing alignment faults on some + * machines.) + */ + *obj_length = ACPI_ROUND_UP_TO_NATIVE_WORD(length); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_get_element_length + * + * PARAMETERS: acpi_pkg_callback + * + * RETURN: Status + * + * DESCRIPTION: Get the length of one package element. + * + ******************************************************************************/ + +static acpi_status +acpi_ut_get_element_length(u8 object_type, + union acpi_operand_object *source_object, + union acpi_generic_state *state, void *context) +{ + acpi_status status = AE_OK; + struct acpi_pkg_info *info = (struct acpi_pkg_info *)context; + acpi_size object_space; + + switch (object_type) { + case ACPI_COPY_TYPE_SIMPLE: + + /* + * Simple object - just get the size (Null object/entry is handled + * here also) and sum it into the running package length + */ + status = + acpi_ut_get_simple_object_size(source_object, + &object_space); + if (ACPI_FAILURE(status)) { + return (status); + } + + info->length += object_space; + break; + + case ACPI_COPY_TYPE_PACKAGE: + + /* Package object - nothing much to do here, let the walk handle it */ + + info->num_packages++; + state->pkg.this_target_obj = NULL; + break; + + default: + + /* No other types allowed */ + + return (AE_BAD_PARAMETER); + } + + return (status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_get_package_object_size + * + * PARAMETERS: internal_object - An ACPI internal object + * obj_length - Where the length is returned + * + * RETURN: Status + * + * DESCRIPTION: This function is called to determine the space required to + * contain a package object for return to an external user. + * + * This is moderately complex since a package contains other + * objects including packages. + * + ******************************************************************************/ + +static acpi_status +acpi_ut_get_package_object_size(union acpi_operand_object *internal_object, + acpi_size * obj_length) +{ + acpi_status status; + struct acpi_pkg_info info; + + ACPI_FUNCTION_TRACE_PTR(ut_get_package_object_size, internal_object); + + info.length = 0; + info.object_space = 0; + info.num_packages = 1; + + status = acpi_ut_walk_package_tree(internal_object, NULL, + acpi_ut_get_element_length, &info); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * We have handled all of the objects in all levels of the package. + * just add the length of the package objects themselves. + * Round up to the next machine word. + */ + info.length += ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object)) * + (acpi_size) info.num_packages; + + /* Return the total package length */ + + *obj_length = info.length; + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_get_object_size + * + * PARAMETERS: internal_object - An ACPI internal object + * obj_length - Where the length will be returned + * + * RETURN: Status + * + * DESCRIPTION: This function is called to determine the space required to + * contain an object for return to an API user. + * + ******************************************************************************/ + +acpi_status +acpi_ut_get_object_size(union acpi_operand_object *internal_object, + acpi_size * obj_length) +{ + acpi_status status; + + ACPI_FUNCTION_ENTRY(); + + if ((ACPI_GET_DESCRIPTOR_TYPE(internal_object) == + ACPI_DESC_TYPE_OPERAND) + && (ACPI_GET_OBJECT_TYPE(internal_object) == ACPI_TYPE_PACKAGE)) { + status = + acpi_ut_get_package_object_size(internal_object, + obj_length); + } else { + status = + acpi_ut_get_simple_object_size(internal_object, obj_length); + } + + return (status); +} diff --git a/drivers/acpi/acpica/utresrc.c b/drivers/acpi/acpica/utresrc.c new file mode 100644 index 000000000000..0755c5cdbe18 --- /dev/null +++ b/drivers/acpi/acpica/utresrc.c @@ -0,0 +1,616 @@ +/******************************************************************************* + * + * Module Name: utresrc - Resource management utilities + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include + +#define _COMPONENT ACPI_UTILITIES +ACPI_MODULE_NAME("utresrc") +#if defined(ACPI_DISASSEMBLER) || defined (ACPI_DEBUGGER) +/* + * Strings used to decode resource descriptors. + * Used by both the disasssembler and the debugger resource dump routines + */ +const char *acpi_gbl_bm_decode[] = { + "NotBusMaster", + "BusMaster" +}; + +const char *acpi_gbl_config_decode[] = { + "0 - Good Configuration", + "1 - Acceptable Configuration", + "2 - Suboptimal Configuration", + "3 - ***Invalid Configuration***", +}; + +const char *acpi_gbl_consume_decode[] = { + "ResourceProducer", + "ResourceConsumer" +}; + +const char *acpi_gbl_dec_decode[] = { + "PosDecode", + "SubDecode" +}; + +const char *acpi_gbl_he_decode[] = { + "Level", + "Edge" +}; + +const char *acpi_gbl_io_decode[] = { + "Decode10", + "Decode16" +}; + +const char *acpi_gbl_ll_decode[] = { + "ActiveHigh", + "ActiveLow" +}; + +const char *acpi_gbl_max_decode[] = { + "MaxNotFixed", + "MaxFixed" +}; + +const char *acpi_gbl_mem_decode[] = { + "NonCacheable", + "Cacheable", + "WriteCombining", + "Prefetchable" +}; + +const char *acpi_gbl_min_decode[] = { + "MinNotFixed", + "MinFixed" +}; + +const char *acpi_gbl_mtp_decode[] = { + "AddressRangeMemory", + "AddressRangeReserved", + "AddressRangeACPI", + "AddressRangeNVS" +}; + +const char *acpi_gbl_rng_decode[] = { + "InvalidRanges", + "NonISAOnlyRanges", + "ISAOnlyRanges", + "EntireRange" +}; + +const char *acpi_gbl_rw_decode[] = { + "ReadOnly", + "ReadWrite" +}; + +const char *acpi_gbl_shr_decode[] = { + "Exclusive", + "Shared" +}; + +const char *acpi_gbl_siz_decode[] = { + "Transfer8", + "Transfer8_16", + "Transfer16", + "InvalidSize" +}; + +const char *acpi_gbl_trs_decode[] = { + "DenseTranslation", + "SparseTranslation" +}; + +const char *acpi_gbl_ttp_decode[] = { + "TypeStatic", + "TypeTranslation" +}; + +const char *acpi_gbl_typ_decode[] = { + "Compatibility", + "TypeA", + "TypeB", + "TypeF" +}; + +#endif + +/* + * Base sizes of the raw AML resource descriptors, indexed by resource type. + * Zero indicates a reserved (and therefore invalid) resource type. + */ +const u8 acpi_gbl_resource_aml_sizes[] = { + /* Small descriptors */ + + 0, + 0, + 0, + 0, + ACPI_AML_SIZE_SMALL(struct aml_resource_irq), + ACPI_AML_SIZE_SMALL(struct aml_resource_dma), + ACPI_AML_SIZE_SMALL(struct aml_resource_start_dependent), + ACPI_AML_SIZE_SMALL(struct aml_resource_end_dependent), + ACPI_AML_SIZE_SMALL(struct aml_resource_io), + ACPI_AML_SIZE_SMALL(struct aml_resource_fixed_io), + 0, + 0, + 0, + 0, + ACPI_AML_SIZE_SMALL(struct aml_resource_vendor_small), + ACPI_AML_SIZE_SMALL(struct aml_resource_end_tag), + + /* Large descriptors */ + + 0, + ACPI_AML_SIZE_LARGE(struct aml_resource_memory24), + ACPI_AML_SIZE_LARGE(struct aml_resource_generic_register), + 0, + ACPI_AML_SIZE_LARGE(struct aml_resource_vendor_large), + ACPI_AML_SIZE_LARGE(struct aml_resource_memory32), + ACPI_AML_SIZE_LARGE(struct aml_resource_fixed_memory32), + ACPI_AML_SIZE_LARGE(struct aml_resource_address32), + ACPI_AML_SIZE_LARGE(struct aml_resource_address16), + ACPI_AML_SIZE_LARGE(struct aml_resource_extended_irq), + ACPI_AML_SIZE_LARGE(struct aml_resource_address64), + ACPI_AML_SIZE_LARGE(struct aml_resource_extended_address64) +}; + +/* + * Resource types, used to validate the resource length field. + * The length of fixed-length types must match exactly, variable + * lengths must meet the minimum required length, etc. + * Zero indicates a reserved (and therefore invalid) resource type. + */ +static const u8 acpi_gbl_resource_types[] = { + /* Small descriptors */ + + 0, + 0, + 0, + 0, + ACPI_SMALL_VARIABLE_LENGTH, + ACPI_FIXED_LENGTH, + ACPI_SMALL_VARIABLE_LENGTH, + ACPI_FIXED_LENGTH, + ACPI_FIXED_LENGTH, + ACPI_FIXED_LENGTH, + 0, + 0, + 0, + 0, + ACPI_VARIABLE_LENGTH, + ACPI_FIXED_LENGTH, + + /* Large descriptors */ + + 0, + ACPI_FIXED_LENGTH, + ACPI_FIXED_LENGTH, + 0, + ACPI_VARIABLE_LENGTH, + ACPI_FIXED_LENGTH, + ACPI_FIXED_LENGTH, + ACPI_VARIABLE_LENGTH, + ACPI_VARIABLE_LENGTH, + ACPI_VARIABLE_LENGTH, + ACPI_VARIABLE_LENGTH, + ACPI_FIXED_LENGTH +}; + +/******************************************************************************* + * + * FUNCTION: acpi_ut_walk_aml_resources + * + * PARAMETERS: Aml - Pointer to the raw AML resource template + * aml_length - Length of the entire template + * user_function - Called once for each descriptor found. If + * NULL, a pointer to the end_tag is returned + * Context - Passed to user_function + * + * RETURN: Status + * + * DESCRIPTION: Walk a raw AML resource list(buffer). User function called + * once for each resource found. + * + ******************************************************************************/ + +acpi_status +acpi_ut_walk_aml_resources(u8 * aml, + acpi_size aml_length, + acpi_walk_aml_callback user_function, void **context) +{ + acpi_status status; + u8 *end_aml; + u8 resource_index; + u32 length; + u32 offset = 0; + + ACPI_FUNCTION_TRACE(ut_walk_aml_resources); + + /* The absolute minimum resource template is one end_tag descriptor */ + + if (aml_length < sizeof(struct aml_resource_end_tag)) { + return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG); + } + + /* Point to the end of the resource template buffer */ + + end_aml = aml + aml_length; + + /* Walk the byte list, abort on any invalid descriptor type or length */ + + while (aml < end_aml) { + + /* Validate the Resource Type and Resource Length */ + + status = acpi_ut_validate_resource(aml, &resource_index); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Get the length of this descriptor */ + + length = acpi_ut_get_descriptor_length(aml); + + /* Invoke the user function */ + + if (user_function) { + status = + user_function(aml, length, offset, resource_index, + context); + if (ACPI_FAILURE(status)) { + return (status); + } + } + + /* An end_tag descriptor terminates this resource template */ + + if (acpi_ut_get_resource_type(aml) == + ACPI_RESOURCE_NAME_END_TAG) { + /* + * There must be at least one more byte in the buffer for + * the 2nd byte of the end_tag + */ + if ((aml + 1) >= end_aml) { + return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG); + } + + /* Return the pointer to the end_tag if requested */ + + if (!user_function) { + *context = aml; + } + + /* Normal exit */ + + return_ACPI_STATUS(AE_OK); + } + + aml += length; + offset += length; + } + + /* Did not find an end_tag descriptor */ + + return (AE_AML_NO_RESOURCE_END_TAG); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_validate_resource + * + * PARAMETERS: Aml - Pointer to the raw AML resource descriptor + * return_index - Where the resource index is returned. NULL + * if the index is not required. + * + * RETURN: Status, and optionally the Index into the global resource tables + * + * DESCRIPTION: Validate an AML resource descriptor by checking the Resource + * Type and Resource Length. Returns an index into the global + * resource information/dispatch tables for later use. + * + ******************************************************************************/ + +acpi_status acpi_ut_validate_resource(void *aml, u8 * return_index) +{ + u8 resource_type; + u8 resource_index; + acpi_rs_length resource_length; + acpi_rs_length minimum_resource_length; + + ACPI_FUNCTION_ENTRY(); + + /* + * 1) Validate the resource_type field (Byte 0) + */ + resource_type = ACPI_GET8(aml); + + /* + * Byte 0 contains the descriptor name (Resource Type) + * Examine the large/small bit in the resource header + */ + if (resource_type & ACPI_RESOURCE_NAME_LARGE) { + + /* Verify the large resource type (name) against the max */ + + if (resource_type > ACPI_RESOURCE_NAME_LARGE_MAX) { + return (AE_AML_INVALID_RESOURCE_TYPE); + } + + /* + * Large Resource Type -- bits 6:0 contain the name + * Translate range 0x80-0x8B to index range 0x10-0x1B + */ + resource_index = (u8) (resource_type - 0x70); + } else { + /* + * Small Resource Type -- bits 6:3 contain the name + * Shift range to index range 0x00-0x0F + */ + resource_index = (u8) + ((resource_type & ACPI_RESOURCE_NAME_SMALL_MASK) >> 3); + } + + /* Check validity of the resource type, zero indicates name is invalid */ + + if (!acpi_gbl_resource_types[resource_index]) { + return (AE_AML_INVALID_RESOURCE_TYPE); + } + + /* + * 2) Validate the resource_length field. This ensures that the length + * is at least reasonable, and guarantees that it is non-zero. + */ + resource_length = acpi_ut_get_resource_length(aml); + minimum_resource_length = acpi_gbl_resource_aml_sizes[resource_index]; + + /* Validate based upon the type of resource - fixed length or variable */ + + switch (acpi_gbl_resource_types[resource_index]) { + case ACPI_FIXED_LENGTH: + + /* Fixed length resource, length must match exactly */ + + if (resource_length != minimum_resource_length) { + return (AE_AML_BAD_RESOURCE_LENGTH); + } + break; + + case ACPI_VARIABLE_LENGTH: + + /* Variable length resource, length must be at least the minimum */ + + if (resource_length < minimum_resource_length) { + return (AE_AML_BAD_RESOURCE_LENGTH); + } + break; + + case ACPI_SMALL_VARIABLE_LENGTH: + + /* Small variable length resource, length can be (Min) or (Min-1) */ + + if ((resource_length > minimum_resource_length) || + (resource_length < (minimum_resource_length - 1))) { + return (AE_AML_BAD_RESOURCE_LENGTH); + } + break; + + default: + + /* Shouldn't happen (because of validation earlier), but be sure */ + + return (AE_AML_INVALID_RESOURCE_TYPE); + } + + /* Optionally return the resource table index */ + + if (return_index) { + *return_index = resource_index; + } + + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_get_resource_type + * + * PARAMETERS: Aml - Pointer to the raw AML resource descriptor + * + * RETURN: The Resource Type with no extraneous bits (except the + * Large/Small descriptor bit -- this is left alone) + * + * DESCRIPTION: Extract the Resource Type/Name from the first byte of + * a resource descriptor. + * + ******************************************************************************/ + +u8 acpi_ut_get_resource_type(void *aml) +{ + ACPI_FUNCTION_ENTRY(); + + /* + * Byte 0 contains the descriptor name (Resource Type) + * Examine the large/small bit in the resource header + */ + if (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_LARGE) { + + /* Large Resource Type -- bits 6:0 contain the name */ + + return (ACPI_GET8(aml)); + } else { + /* Small Resource Type -- bits 6:3 contain the name */ + + return ((u8) (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_SMALL_MASK)); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_get_resource_length + * + * PARAMETERS: Aml - Pointer to the raw AML resource descriptor + * + * RETURN: Byte Length + * + * DESCRIPTION: Get the "Resource Length" of a raw AML descriptor. By + * definition, this does not include the size of the descriptor + * header or the length field itself. + * + ******************************************************************************/ + +u16 acpi_ut_get_resource_length(void *aml) +{ + acpi_rs_length resource_length; + + ACPI_FUNCTION_ENTRY(); + + /* + * Byte 0 contains the descriptor name (Resource Type) + * Examine the large/small bit in the resource header + */ + if (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_LARGE) { + + /* Large Resource type -- bytes 1-2 contain the 16-bit length */ + + ACPI_MOVE_16_TO_16(&resource_length, ACPI_ADD_PTR(u8, aml, 1)); + + } else { + /* Small Resource type -- bits 2:0 of byte 0 contain the length */ + + resource_length = (u16) (ACPI_GET8(aml) & + ACPI_RESOURCE_NAME_SMALL_LENGTH_MASK); + } + + return (resource_length); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_get_resource_header_length + * + * PARAMETERS: Aml - Pointer to the raw AML resource descriptor + * + * RETURN: Length of the AML header (depends on large/small descriptor) + * + * DESCRIPTION: Get the length of the header for this resource. + * + ******************************************************************************/ + +u8 acpi_ut_get_resource_header_length(void *aml) +{ + ACPI_FUNCTION_ENTRY(); + + /* Examine the large/small bit in the resource header */ + + if (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_LARGE) { + return (sizeof(struct aml_resource_large_header)); + } else { + return (sizeof(struct aml_resource_small_header)); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_get_descriptor_length + * + * PARAMETERS: Aml - Pointer to the raw AML resource descriptor + * + * RETURN: Byte length + * + * DESCRIPTION: Get the total byte length of a raw AML descriptor, including the + * length of the descriptor header and the length field itself. + * Used to walk descriptor lists. + * + ******************************************************************************/ + +u32 acpi_ut_get_descriptor_length(void *aml) +{ + ACPI_FUNCTION_ENTRY(); + + /* + * Get the Resource Length (does not include header length) and add + * the header length (depends on if this is a small or large resource) + */ + return (acpi_ut_get_resource_length(aml) + + acpi_ut_get_resource_header_length(aml)); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_get_resource_end_tag + * + * PARAMETERS: obj_desc - The resource template buffer object + * end_tag - Where the pointer to the end_tag is returned + * + * RETURN: Status, pointer to the end tag + * + * DESCRIPTION: Find the end_tag resource descriptor in an AML resource template + * Note: allows a buffer length of zero. + * + ******************************************************************************/ + +acpi_status +acpi_ut_get_resource_end_tag(union acpi_operand_object * obj_desc, + u8 ** end_tag) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(ut_get_resource_end_tag); + + /* Allow a buffer length of zero */ + + if (!obj_desc->buffer.length) { + *end_tag = obj_desc->buffer.pointer; + return_ACPI_STATUS(AE_OK); + } + + /* Validate the template and get a pointer to the end_tag */ + + status = acpi_ut_walk_aml_resources(obj_desc->buffer.pointer, + obj_desc->buffer.length, NULL, + (void **)end_tag); + + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/utstate.c b/drivers/acpi/acpica/utstate.c new file mode 100644 index 000000000000..54c3461e2f26 --- /dev/null +++ b/drivers/acpi/acpica/utstate.c @@ -0,0 +1,347 @@ +/******************************************************************************* + * + * Module Name: utstate - state object support procedures + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include + +#define _COMPONENT ACPI_UTILITIES +ACPI_MODULE_NAME("utstate") + +/******************************************************************************* + * + * FUNCTION: acpi_ut_create_pkg_state_and_push + * + * PARAMETERS: Object - Object to be added to the new state + * Action - Increment/Decrement + * state_list - List the state will be added to + * + * RETURN: Status + * + * DESCRIPTION: Create a new state and push it + * + ******************************************************************************/ +acpi_status +acpi_ut_create_pkg_state_and_push(void *internal_object, + void *external_object, + u16 index, + union acpi_generic_state **state_list) +{ + union acpi_generic_state *state; + + ACPI_FUNCTION_ENTRY(); + + state = + acpi_ut_create_pkg_state(internal_object, external_object, index); + if (!state) { + return (AE_NO_MEMORY); + } + + acpi_ut_push_generic_state(state_list, state); + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_push_generic_state + * + * PARAMETERS: list_head - Head of the state stack + * State - State object to push + * + * RETURN: None + * + * DESCRIPTION: Push a state object onto a state stack + * + ******************************************************************************/ + +void +acpi_ut_push_generic_state(union acpi_generic_state **list_head, + union acpi_generic_state *state) +{ + ACPI_FUNCTION_TRACE(ut_push_generic_state); + + /* Push the state object onto the front of the list (stack) */ + + state->common.next = *list_head; + *list_head = state; + + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_pop_generic_state + * + * PARAMETERS: list_head - Head of the state stack + * + * RETURN: The popped state object + * + * DESCRIPTION: Pop a state object from a state stack + * + ******************************************************************************/ + +union acpi_generic_state *acpi_ut_pop_generic_state(union acpi_generic_state + **list_head) +{ + union acpi_generic_state *state; + + ACPI_FUNCTION_TRACE(ut_pop_generic_state); + + /* Remove the state object at the head of the list (stack) */ + + state = *list_head; + if (state) { + + /* Update the list head */ + + *list_head = state->common.next; + } + + return_PTR(state); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_create_generic_state + * + * PARAMETERS: None + * + * RETURN: The new state object. NULL on failure. + * + * DESCRIPTION: Create a generic state object. Attempt to obtain one from + * the global state cache; If none available, create a new one. + * + ******************************************************************************/ + +union acpi_generic_state *acpi_ut_create_generic_state(void) +{ + union acpi_generic_state *state; + + ACPI_FUNCTION_ENTRY(); + + state = acpi_os_acquire_object(acpi_gbl_state_cache); + if (state) { + + /* Initialize */ + memset(state, 0, sizeof(union acpi_generic_state)); + state->common.descriptor_type = ACPI_DESC_TYPE_STATE; + } + + return (state); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_create_thread_state + * + * PARAMETERS: None + * + * RETURN: New Thread State. NULL on failure + * + * DESCRIPTION: Create a "Thread State" - a flavor of the generic state used + * to track per-thread info during method execution + * + ******************************************************************************/ + +struct acpi_thread_state *acpi_ut_create_thread_state(void) +{ + union acpi_generic_state *state; + + ACPI_FUNCTION_TRACE(ut_create_thread_state); + + /* Create the generic state object */ + + state = acpi_ut_create_generic_state(); + if (!state) { + return_PTR(NULL); + } + + /* Init fields specific to the update struct */ + + state->common.descriptor_type = ACPI_DESC_TYPE_STATE_THREAD; + state->thread.thread_id = acpi_os_get_thread_id(); + + /* Check for invalid thread ID - zero is very bad, it will break things */ + + if (!state->thread.thread_id) { + ACPI_ERROR((AE_INFO, "Invalid zero ID from AcpiOsGetThreadId")); + state->thread.thread_id = (acpi_thread_id) 1; + } + + return_PTR((struct acpi_thread_state *)state); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_create_update_state + * + * PARAMETERS: Object - Initial Object to be installed in the state + * Action - Update action to be performed + * + * RETURN: New state object, null on failure + * + * DESCRIPTION: Create an "Update State" - a flavor of the generic state used + * to update reference counts and delete complex objects such + * as packages. + * + ******************************************************************************/ + +union acpi_generic_state *acpi_ut_create_update_state(union acpi_operand_object + *object, u16 action) +{ + union acpi_generic_state *state; + + ACPI_FUNCTION_TRACE_PTR(ut_create_update_state, object); + + /* Create the generic state object */ + + state = acpi_ut_create_generic_state(); + if (!state) { + return_PTR(NULL); + } + + /* Init fields specific to the update struct */ + + state->common.descriptor_type = ACPI_DESC_TYPE_STATE_UPDATE; + state->update.object = object; + state->update.value = action; + + return_PTR(state); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_create_pkg_state + * + * PARAMETERS: Object - Initial Object to be installed in the state + * Action - Update action to be performed + * + * RETURN: New state object, null on failure + * + * DESCRIPTION: Create a "Package State" + * + ******************************************************************************/ + +union acpi_generic_state *acpi_ut_create_pkg_state(void *internal_object, + void *external_object, + u16 index) +{ + union acpi_generic_state *state; + + ACPI_FUNCTION_TRACE_PTR(ut_create_pkg_state, internal_object); + + /* Create the generic state object */ + + state = acpi_ut_create_generic_state(); + if (!state) { + return_PTR(NULL); + } + + /* Init fields specific to the update struct */ + + state->common.descriptor_type = ACPI_DESC_TYPE_STATE_PACKAGE; + state->pkg.source_object = (union acpi_operand_object *)internal_object; + state->pkg.dest_object = external_object; + state->pkg.index = index; + state->pkg.num_packages = 1; + + return_PTR(state); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_create_control_state + * + * PARAMETERS: None + * + * RETURN: New state object, null on failure + * + * DESCRIPTION: Create a "Control State" - a flavor of the generic state used + * to support nested IF/WHILE constructs in the AML. + * + ******************************************************************************/ + +union acpi_generic_state *acpi_ut_create_control_state(void) +{ + union acpi_generic_state *state; + + ACPI_FUNCTION_TRACE(ut_create_control_state); + + /* Create the generic state object */ + + state = acpi_ut_create_generic_state(); + if (!state) { + return_PTR(NULL); + } + + /* Init fields specific to the control struct */ + + state->common.descriptor_type = ACPI_DESC_TYPE_STATE_CONTROL; + state->common.state = ACPI_CONTROL_CONDITIONAL_EXECUTING; + + return_PTR(state); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_delete_generic_state + * + * PARAMETERS: State - The state object to be deleted + * + * RETURN: None + * + * DESCRIPTION: Release a state object to the state cache. NULL state objects + * are ignored. + * + ******************************************************************************/ + +void acpi_ut_delete_generic_state(union acpi_generic_state *state) +{ + ACPI_FUNCTION_TRACE(ut_delete_generic_state); + + /* Ignore null state */ + + if (state) { + (void)acpi_os_release_object(acpi_gbl_state_cache, state); + } + return_VOID; +} diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c new file mode 100644 index 000000000000..5b27724a2749 --- /dev/null +++ b/drivers/acpi/acpica/utxface.c @@ -0,0 +1,512 @@ +/****************************************************************************** + * + * Module Name: utxface - External interfaces for "global" ACPI functions + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include +#include +#include +#include +#include + +#define _COMPONENT ACPI_UTILITIES +ACPI_MODULE_NAME("utxface") + +#ifndef ACPI_ASL_COMPILER +/******************************************************************************* + * + * FUNCTION: acpi_initialize_subsystem + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Initializes all global variables. This is the first function + * called, so any early initialization belongs here. + * + ******************************************************************************/ +acpi_status __init acpi_initialize_subsystem(void) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_initialize_subsystem); + + acpi_gbl_startup_flags = ACPI_SUBSYSTEM_INITIALIZE; + ACPI_DEBUG_EXEC(acpi_ut_init_stack_ptr_trace()); + + /* Initialize the OS-Dependent layer */ + + status = acpi_os_initialize(); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, "During OSL initialization")); + return_ACPI_STATUS(status); + } + + /* Initialize all globals used by the subsystem */ + + status = acpi_ut_init_globals(); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "During initialization of globals")); + return_ACPI_STATUS(status); + } + + /* Create the default mutex objects */ + + status = acpi_ut_mutex_initialize(); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "During Global Mutex creation")); + return_ACPI_STATUS(status); + } + + /* + * Initialize the namespace manager and + * the root of the namespace tree + */ + status = acpi_ns_root_initialize(); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "During Namespace initialization")); + return_ACPI_STATUS(status); + } + + /* If configured, initialize the AML debugger */ + + ACPI_DEBUGGER_EXEC(status = acpi_db_initialize()); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_enable_subsystem + * + * PARAMETERS: Flags - Init/enable Options + * + * RETURN: Status + * + * DESCRIPTION: Completes the subsystem initialization including hardware. + * Puts system into ACPI mode if it isn't already. + * + ******************************************************************************/ +acpi_status acpi_enable_subsystem(u32 flags) +{ + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE(acpi_enable_subsystem); + + /* Enable ACPI mode */ + + if (!(flags & ACPI_NO_ACPI_ENABLE)) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "[Init] Going into ACPI mode\n")); + + acpi_gbl_original_mode = acpi_hw_get_mode(); + + status = acpi_enable(); + if (ACPI_FAILURE(status)) { + ACPI_WARNING((AE_INFO, "AcpiEnable failed")); + return_ACPI_STATUS(status); + } + } + + /* + * Obtain a permanent mapping for the FACS. This is required for the + * Global Lock and the Firmware Waking Vector + */ + status = acpi_tb_initialize_facs(); + if (ACPI_FAILURE(status)) { + ACPI_WARNING((AE_INFO, "Could not map the FACS table")); + return_ACPI_STATUS(status); + } + + /* + * Install the default op_region handlers. These are installed unless + * other handlers have already been installed via the + * install_address_space_handler interface. + */ + if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "[Init] Installing default address space handlers\n")); + + status = acpi_ev_install_region_handlers(); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + + /* + * Initialize ACPI Event handling (Fixed and General Purpose) + * + * Note1: We must have the hardware and events initialized before we can + * execute any control methods safely. Any control method can require + * ACPI hardware support, so the hardware must be fully initialized before + * any method execution! + * + * Note2: Fixed events are initialized and enabled here. GPEs are + * initialized, but cannot be enabled until after the hardware is + * completely initialized (SCI and global_lock activated) + */ + if (!(flags & ACPI_NO_EVENT_INIT)) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "[Init] Initializing ACPI events\n")); + + status = acpi_ev_initialize_events(); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + + /* + * Install the SCI handler and Global Lock handler. This completes the + * hardware initialization. + */ + if (!(flags & ACPI_NO_HANDLER_INIT)) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "[Init] Installing SCI/GL handlers\n")); + + status = acpi_ev_install_xrupt_handlers(); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_enable_subsystem) + +/******************************************************************************* + * + * FUNCTION: acpi_initialize_objects + * + * PARAMETERS: Flags - Init/enable Options + * + * RETURN: Status + * + * DESCRIPTION: Completes namespace initialization by initializing device + * objects and executing AML code for Regions, buffers, etc. + * + ******************************************************************************/ +acpi_status acpi_initialize_objects(u32 flags) +{ + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE(acpi_initialize_objects); + + /* + * Run all _REG methods + * + * Note: Any objects accessed by the _REG methods will be automatically + * initialized, even if they contain executable AML (see the call to + * acpi_ns_initialize_objects below). + */ + if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "[Init] Executing _REG OpRegion methods\n")); + + status = acpi_ev_initialize_op_regions(); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + + /* + * Initialize the objects that remain uninitialized. This runs the + * executable AML that may be part of the declaration of these objects: + * operation_regions, buffer_fields, Buffers, and Packages. + */ + if (!(flags & ACPI_NO_OBJECT_INIT)) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "[Init] Completing Initialization of ACPI Objects\n")); + + status = acpi_ns_initialize_objects(); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + + /* + * Initialize all device objects in the namespace. This runs the device + * _STA and _INI methods. + */ + if (!(flags & ACPI_NO_DEVICE_INIT)) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "[Init] Initializing ACPI Devices\n")); + + status = acpi_ns_initialize_devices(); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + + /* + * Complete the GPE initialization for the GPE blocks defined in the FADT + * (GPE block 0 and 1). + * + * Note1: This is where the _PRW methods are executed for the GPEs. These + * methods can only be executed after the SCI and Global Lock handlers are + * installed and initialized. + * + * Note2: Currently, there seems to be no need to run the _REG methods + * before execution of the _PRW methods and enabling of the GPEs. + */ + if (!(flags & ACPI_NO_EVENT_INIT)) { + status = acpi_ev_install_fadt_gpes(); + if (ACPI_FAILURE(status)) + return (status); + } + + /* + * Empty the caches (delete the cached objects) on the assumption that + * the table load filled them up more than they will be at runtime -- + * thus wasting non-paged memory. + */ + status = acpi_purge_cached_objects(); + + acpi_gbl_startup_flags |= ACPI_INITIALIZED_OK; + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_initialize_objects) + +#endif +/******************************************************************************* + * + * FUNCTION: acpi_terminate + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Shutdown the ACPI subsystem. Release all resources. + * + ******************************************************************************/ +acpi_status acpi_terminate(void) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_terminate); + + /* Terminate the AML Debugger if present */ + + ACPI_DEBUGGER_EXEC(acpi_gbl_db_terminate_threads = TRUE); + + /* Shutdown and free all resources */ + + acpi_ut_subsystem_shutdown(); + + /* Free the mutex objects */ + + acpi_ut_mutex_terminate(); + +#ifdef ACPI_DEBUGGER + + /* Shut down the debugger */ + + acpi_db_terminate(); +#endif + + /* Now we can shutdown the OS-dependent layer */ + + status = acpi_os_terminate(); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_terminate) +#ifndef ACPI_ASL_COMPILER +#ifdef ACPI_FUTURE_USAGE +/******************************************************************************* + * + * FUNCTION: acpi_subsystem_status + * + * PARAMETERS: None + * + * RETURN: Status of the ACPI subsystem + * + * DESCRIPTION: Other drivers that use the ACPI subsystem should call this + * before making any other calls, to ensure the subsystem + * initialized successfully. + * + ******************************************************************************/ +acpi_status acpi_subsystem_status(void) +{ + + if (acpi_gbl_startup_flags & ACPI_INITIALIZED_OK) { + return (AE_OK); + } else { + return (AE_ERROR); + } +} + +ACPI_EXPORT_SYMBOL(acpi_subsystem_status) + +/******************************************************************************* + * + * FUNCTION: acpi_get_system_info + * + * PARAMETERS: out_buffer - A buffer to receive the resources for the + * device + * + * RETURN: Status - the status of the call + * + * DESCRIPTION: This function is called to get information about the current + * state of the ACPI subsystem. It will return system information + * in the out_buffer. + * + * If the function fails an appropriate status will be returned + * and the value of out_buffer is undefined. + * + ******************************************************************************/ +acpi_status acpi_get_system_info(struct acpi_buffer * out_buffer) +{ + struct acpi_system_info *info_ptr; + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_get_system_info); + + /* Parameter validation */ + + status = acpi_ut_validate_buffer(out_buffer); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Validate/Allocate/Clear caller buffer */ + + status = + acpi_ut_initialize_buffer(out_buffer, + sizeof(struct acpi_system_info)); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * Populate the return buffer + */ + info_ptr = (struct acpi_system_info *)out_buffer->pointer; + + info_ptr->acpi_ca_version = ACPI_CA_VERSION; + + /* System flags (ACPI capabilities) */ + + info_ptr->flags = ACPI_SYS_MODE_ACPI; + + /* Timer resolution - 24 or 32 bits */ + + if (acpi_gbl_FADT.flags & ACPI_FADT_32BIT_TIMER) { + info_ptr->timer_resolution = 24; + } else { + info_ptr->timer_resolution = 32; + } + + /* Clear the reserved fields */ + + info_ptr->reserved1 = 0; + info_ptr->reserved2 = 0; + + /* Current debug levels */ + + info_ptr->debug_layer = acpi_dbg_layer; + info_ptr->debug_level = acpi_dbg_level; + + return_ACPI_STATUS(AE_OK); +} + +ACPI_EXPORT_SYMBOL(acpi_get_system_info) + +/***************************************************************************** + * + * FUNCTION: acpi_install_initialization_handler + * + * PARAMETERS: Handler - Callback procedure + * Function - Not (currently) used, see below + * + * RETURN: Status + * + * DESCRIPTION: Install an initialization handler + * + * TBD: When a second function is added, must save the Function also. + * + ****************************************************************************/ +acpi_status +acpi_install_initialization_handler(acpi_init_handler handler, u32 function) +{ + + if (!handler) { + return (AE_BAD_PARAMETER); + } + + if (acpi_gbl_init_handler) { + return (AE_ALREADY_EXISTS); + } + + acpi_gbl_init_handler = handler; + return AE_OK; +} + +ACPI_EXPORT_SYMBOL(acpi_install_initialization_handler) +#endif /* ACPI_FUTURE_USAGE */ +/***************************************************************************** + * + * FUNCTION: acpi_purge_cached_objects + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Empty all caches (delete the cached objects) + * + ****************************************************************************/ +acpi_status acpi_purge_cached_objects(void) +{ + ACPI_FUNCTION_TRACE(acpi_purge_cached_objects); + + (void)acpi_os_purge_cache(acpi_gbl_state_cache); + (void)acpi_os_purge_cache(acpi_gbl_operand_cache); + (void)acpi_os_purge_cache(acpi_gbl_ps_node_cache); + (void)acpi_os_purge_cache(acpi_gbl_ps_node_ext_cache); + return_ACPI_STATUS(AE_OK); +} + +ACPI_EXPORT_SYMBOL(acpi_purge_cached_objects) +#endif diff --git a/drivers/acpi/dispatcher/Makefile b/drivers/acpi/dispatcher/Makefile deleted file mode 100644 index eb7e602a83cd..000000000000 --- a/drivers/acpi/dispatcher/Makefile +++ /dev/null @@ -1,9 +0,0 @@ -# -# Makefile for all Linux ACPI interpreter subdirectories -# - -obj-y := dsfield.o dsmthdat.o dsopcode.o dswexec.o dswscope.o \ - dsmethod.o dsobject.o dsutils.o dswload.o dswstate.o \ - dsinit.o - -EXTRA_CFLAGS += $(ACPI_CFLAGS) diff --git a/drivers/acpi/dispatcher/dsfield.c b/drivers/acpi/dispatcher/dsfield.c deleted file mode 100644 index 5fbc24075b44..000000000000 --- a/drivers/acpi/dispatcher/dsfield.c +++ /dev/null @@ -1,650 +0,0 @@ -/****************************************************************************** - * - * Module Name: dsfield - Dispatcher field routines - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_DISPATCHER -ACPI_MODULE_NAME("dsfield") - -/* Local prototypes */ -static acpi_status -acpi_ds_get_field_names(struct acpi_create_field_info *info, - struct acpi_walk_state *walk_state, - union acpi_parse_object *arg); - -/******************************************************************************* - * - * FUNCTION: acpi_ds_create_buffer_field - * - * PARAMETERS: Op - Current parse op (create_xXField) - * walk_state - Current state - * - * RETURN: Status - * - * DESCRIPTION: Execute the create_field operators: - * create_bit_field_op, - * create_byte_field_op, - * create_word_field_op, - * create_dword_field_op, - * create_qword_field_op, - * create_field_op (all of which define a field in a buffer) - * - ******************************************************************************/ - -acpi_status -acpi_ds_create_buffer_field(union acpi_parse_object *op, - struct acpi_walk_state *walk_state) -{ - union acpi_parse_object *arg; - struct acpi_namespace_node *node; - acpi_status status; - union acpi_operand_object *obj_desc; - union acpi_operand_object *second_desc = NULL; - u32 flags; - - ACPI_FUNCTION_TRACE(ds_create_buffer_field); - - /* - * Get the name_string argument (name of the new buffer_field) - */ - if (op->common.aml_opcode == AML_CREATE_FIELD_OP) { - - /* For create_field, name is the 4th argument */ - - arg = acpi_ps_get_arg(op, 3); - } else { - /* For all other create_xXXField operators, name is the 3rd argument */ - - arg = acpi_ps_get_arg(op, 2); - } - - if (!arg) { - return_ACPI_STATUS(AE_AML_NO_OPERAND); - } - - if (walk_state->deferred_node) { - node = walk_state->deferred_node; - status = AE_OK; - } else { - /* Execute flag should always be set when this function is entered */ - - if (!(walk_state->parse_flags & ACPI_PARSE_EXECUTE)) { - return_ACPI_STATUS(AE_AML_INTERNAL); - } - - /* Creating new namespace node, should not already exist */ - - flags = ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE | - ACPI_NS_ERROR_IF_FOUND; - - /* Mark node temporary if we are executing a method */ - - if (walk_state->method_node) { - flags |= ACPI_NS_TEMPORARY; - } - - /* Enter the name_string into the namespace */ - - status = - acpi_ns_lookup(walk_state->scope_info, - arg->common.value.string, ACPI_TYPE_ANY, - ACPI_IMODE_LOAD_PASS1, flags, walk_state, - &node); - if (ACPI_FAILURE(status)) { - ACPI_ERROR_NAMESPACE(arg->common.value.string, status); - return_ACPI_STATUS(status); - } - } - - /* - * We could put the returned object (Node) on the object stack for later, - * but for now, we will put it in the "op" object that the parser uses, - * so we can get it again at the end of this scope. - */ - op->common.node = node; - - /* - * If there is no object attached to the node, this node was just created - * and we need to create the field object. Otherwise, this was a lookup - * of an existing node and we don't want to create the field object again. - */ - obj_desc = acpi_ns_get_attached_object(node); - if (obj_desc) { - return_ACPI_STATUS(AE_OK); - } - - /* - * The Field definition is not fully parsed at this time. - * (We must save the address of the AML for the buffer and index operands) - */ - - /* Create the buffer field object */ - - obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER_FIELD); - if (!obj_desc) { - status = AE_NO_MEMORY; - goto cleanup; - } - - /* - * Remember location in AML stream of the field unit opcode and operands -- - * since the buffer and index operands must be evaluated. - */ - second_desc = obj_desc->common.next_object; - second_desc->extra.aml_start = op->named.data; - second_desc->extra.aml_length = op->named.length; - obj_desc->buffer_field.node = node; - - /* Attach constructed field descriptors to parent node */ - - status = acpi_ns_attach_object(node, obj_desc, ACPI_TYPE_BUFFER_FIELD); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - cleanup: - - /* Remove local reference to the object */ - - acpi_ut_remove_reference(obj_desc); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_get_field_names - * - * PARAMETERS: Info - create_field info structure - * ` walk_state - Current method state - * Arg - First parser arg for the field name list - * - * RETURN: Status - * - * DESCRIPTION: Process all named fields in a field declaration. Names are - * entered into the namespace. - * - ******************************************************************************/ - -static acpi_status -acpi_ds_get_field_names(struct acpi_create_field_info *info, - struct acpi_walk_state *walk_state, - union acpi_parse_object *arg) -{ - acpi_status status; - acpi_integer position; - - ACPI_FUNCTION_TRACE_PTR(ds_get_field_names, info); - - /* First field starts at bit zero */ - - info->field_bit_position = 0; - - /* Process all elements in the field list (of parse nodes) */ - - while (arg) { - /* - * Three types of field elements are handled: - * 1) Offset - specifies a bit offset - * 2) access_as - changes the access mode - * 3) Name - Enters a new named field into the namespace - */ - switch (arg->common.aml_opcode) { - case AML_INT_RESERVEDFIELD_OP: - - position = (acpi_integer) info->field_bit_position - + (acpi_integer) arg->common.value.size; - - if (position > ACPI_UINT32_MAX) { - ACPI_ERROR((AE_INFO, - "Bit offset within field too large (> 0xFFFFFFFF)")); - return_ACPI_STATUS(AE_SUPPORT); - } - - info->field_bit_position = (u32) position; - break; - - case AML_INT_ACCESSFIELD_OP: - - /* - * Get a new access_type and access_attribute -- to be used for all - * field units that follow, until field end or another access_as - * keyword. - * - * In field_flags, preserve the flag bits other than the - * ACCESS_TYPE bits - */ - info->field_flags = (u8) - ((info-> - field_flags & ~(AML_FIELD_ACCESS_TYPE_MASK)) | - ((u8) ((u32) arg->common.value.integer >> 8))); - - info->attribute = (u8) (arg->common.value.integer); - break; - - case AML_INT_NAMEDFIELD_OP: - - /* Lookup the name, it should already exist */ - - status = acpi_ns_lookup(walk_state->scope_info, - (char *)&arg->named.name, - info->field_type, - ACPI_IMODE_EXECUTE, - ACPI_NS_DONT_OPEN_SCOPE, - walk_state, &info->field_node); - if (ACPI_FAILURE(status)) { - ACPI_ERROR_NAMESPACE((char *)&arg->named.name, - status); - return_ACPI_STATUS(status); - } else { - arg->common.node = info->field_node; - info->field_bit_length = arg->common.value.size; - - /* - * If there is no object attached to the node, this node was - * just created and we need to create the field object. - * Otherwise, this was a lookup of an existing node and we - * don't want to create the field object again. - */ - if (!acpi_ns_get_attached_object - (info->field_node)) { - status = acpi_ex_prep_field_value(info); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - } - - /* Keep track of bit position for the next field */ - - position = (acpi_integer) info->field_bit_position - + (acpi_integer) arg->common.value.size; - - if (position > ACPI_UINT32_MAX) { - ACPI_ERROR((AE_INFO, - "Field [%4.4s] bit offset too large (> 0xFFFFFFFF)", - ACPI_CAST_PTR(char, - &info->field_node-> - name))); - return_ACPI_STATUS(AE_SUPPORT); - } - - info->field_bit_position += info->field_bit_length; - break; - - default: - - ACPI_ERROR((AE_INFO, - "Invalid opcode in field list: %X", - arg->common.aml_opcode)); - return_ACPI_STATUS(AE_AML_BAD_OPCODE); - } - - arg = arg->common.next; - } - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_create_field - * - * PARAMETERS: Op - Op containing the Field definition and args - * region_node - Object for the containing Operation Region - * ` walk_state - Current method state - * - * RETURN: Status - * - * DESCRIPTION: Create a new field in the specified operation region - * - ******************************************************************************/ - -acpi_status -acpi_ds_create_field(union acpi_parse_object *op, - struct acpi_namespace_node *region_node, - struct acpi_walk_state *walk_state) -{ - acpi_status status; - union acpi_parse_object *arg; - struct acpi_create_field_info info; - - ACPI_FUNCTION_TRACE_PTR(ds_create_field, op); - - /* First arg is the name of the parent op_region (must already exist) */ - - arg = op->common.value.arg; - if (!region_node) { - status = - acpi_ns_lookup(walk_state->scope_info, - arg->common.value.name, ACPI_TYPE_REGION, - ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, - walk_state, ®ion_node); - if (ACPI_FAILURE(status)) { - ACPI_ERROR_NAMESPACE(arg->common.value.name, status); - return_ACPI_STATUS(status); - } - } - - /* Second arg is the field flags */ - - arg = arg->common.next; - info.field_flags = (u8) arg->common.value.integer; - info.attribute = 0; - - /* Each remaining arg is a Named Field */ - - info.field_type = ACPI_TYPE_LOCAL_REGION_FIELD; - info.region_node = region_node; - - status = acpi_ds_get_field_names(&info, walk_state, arg->common.next); - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_init_field_objects - * - * PARAMETERS: Op - Op containing the Field definition and args - * ` walk_state - Current method state - * - * RETURN: Status - * - * DESCRIPTION: For each "Field Unit" name in the argument list that is - * part of the field declaration, enter the name into the - * namespace. - * - ******************************************************************************/ - -acpi_status -acpi_ds_init_field_objects(union acpi_parse_object *op, - struct acpi_walk_state *walk_state) -{ - acpi_status status; - union acpi_parse_object *arg = NULL; - struct acpi_namespace_node *node; - u8 type = 0; - u32 flags; - - ACPI_FUNCTION_TRACE_PTR(ds_init_field_objects, op); - - /* Execute flag should always be set when this function is entered */ - - if (!(walk_state->parse_flags & ACPI_PARSE_EXECUTE)) { - if (walk_state->parse_flags & ACPI_PARSE_DEFERRED_OP) { - - /* bank_field Op is deferred, just return OK */ - - return_ACPI_STATUS(AE_OK); - } - - return_ACPI_STATUS(AE_AML_INTERNAL); - } - - /* - * Get the field_list argument for this opcode. This is the start of the - * list of field elements. - */ - switch (walk_state->opcode) { - case AML_FIELD_OP: - arg = acpi_ps_get_arg(op, 2); - type = ACPI_TYPE_LOCAL_REGION_FIELD; - break; - - case AML_BANK_FIELD_OP: - arg = acpi_ps_get_arg(op, 4); - type = ACPI_TYPE_LOCAL_BANK_FIELD; - break; - - case AML_INDEX_FIELD_OP: - arg = acpi_ps_get_arg(op, 3); - type = ACPI_TYPE_LOCAL_INDEX_FIELD; - break; - - default: - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Creating new namespace node(s), should not already exist */ - - flags = ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE | - ACPI_NS_ERROR_IF_FOUND; - - /* Mark node(s) temporary if we are executing a method */ - - if (walk_state->method_node) { - flags |= ACPI_NS_TEMPORARY; - } - - /* - * Walk the list of entries in the field_list - * Note: field_list can be of zero length. In this case, Arg will be NULL. - */ - while (arg) { - /* - * Ignore OFFSET and ACCESSAS terms here; we are only interested in the - * field names in order to enter them into the namespace. - */ - if (arg->common.aml_opcode == AML_INT_NAMEDFIELD_OP) { - status = acpi_ns_lookup(walk_state->scope_info, - (char *)&arg->named.name, type, - ACPI_IMODE_LOAD_PASS1, flags, - walk_state, &node); - if (ACPI_FAILURE(status)) { - ACPI_ERROR_NAMESPACE((char *)&arg->named.name, - status); - if (status != AE_ALREADY_EXISTS) { - return_ACPI_STATUS(status); - } - - /* Name already exists, just ignore this error */ - - status = AE_OK; - } - - arg->common.node = node; - } - - /* Get the next field element in the list */ - - arg = arg->common.next; - } - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_create_bank_field - * - * PARAMETERS: Op - Op containing the Field definition and args - * region_node - Object for the containing Operation Region - * walk_state - Current method state - * - * RETURN: Status - * - * DESCRIPTION: Create a new bank field in the specified operation region - * - ******************************************************************************/ - -acpi_status -acpi_ds_create_bank_field(union acpi_parse_object *op, - struct acpi_namespace_node *region_node, - struct acpi_walk_state *walk_state) -{ - acpi_status status; - union acpi_parse_object *arg; - struct acpi_create_field_info info; - - ACPI_FUNCTION_TRACE_PTR(ds_create_bank_field, op); - - /* First arg is the name of the parent op_region (must already exist) */ - - arg = op->common.value.arg; - if (!region_node) { - status = - acpi_ns_lookup(walk_state->scope_info, - arg->common.value.name, ACPI_TYPE_REGION, - ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, - walk_state, ®ion_node); - if (ACPI_FAILURE(status)) { - ACPI_ERROR_NAMESPACE(arg->common.value.name, status); - return_ACPI_STATUS(status); - } - } - - /* Second arg is the Bank Register (Field) (must already exist) */ - - arg = arg->common.next; - status = - acpi_ns_lookup(walk_state->scope_info, arg->common.value.string, - ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE, - ACPI_NS_SEARCH_PARENT, walk_state, - &info.register_node); - if (ACPI_FAILURE(status)) { - ACPI_ERROR_NAMESPACE(arg->common.value.string, status); - return_ACPI_STATUS(status); - } - - /* - * Third arg is the bank_value - * This arg is a term_arg, not a constant - * It will be evaluated later, by acpi_ds_eval_bank_field_operands - */ - arg = arg->common.next; - - /* Fourth arg is the field flags */ - - arg = arg->common.next; - info.field_flags = (u8) arg->common.value.integer; - - /* Each remaining arg is a Named Field */ - - info.field_type = ACPI_TYPE_LOCAL_BANK_FIELD; - info.region_node = region_node; - - /* - * Use Info.data_register_node to store bank_field Op - * It's safe because data_register_node will never be used when create bank field - * We store aml_start and aml_length in the bank_field Op for late evaluation - * Used in acpi_ex_prep_field_value(Info) - * - * TBD: Or, should we add a field in struct acpi_create_field_info, like "void *ParentOp"? - */ - info.data_register_node = (struct acpi_namespace_node *)op; - - status = acpi_ds_get_field_names(&info, walk_state, arg->common.next); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_create_index_field - * - * PARAMETERS: Op - Op containing the Field definition and args - * region_node - Object for the containing Operation Region - * ` walk_state - Current method state - * - * RETURN: Status - * - * DESCRIPTION: Create a new index field in the specified operation region - * - ******************************************************************************/ - -acpi_status -acpi_ds_create_index_field(union acpi_parse_object *op, - struct acpi_namespace_node *region_node, - struct acpi_walk_state *walk_state) -{ - acpi_status status; - union acpi_parse_object *arg; - struct acpi_create_field_info info; - - ACPI_FUNCTION_TRACE_PTR(ds_create_index_field, op); - - /* First arg is the name of the Index register (must already exist) */ - - arg = op->common.value.arg; - status = - acpi_ns_lookup(walk_state->scope_info, arg->common.value.string, - ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE, - ACPI_NS_SEARCH_PARENT, walk_state, - &info.register_node); - if (ACPI_FAILURE(status)) { - ACPI_ERROR_NAMESPACE(arg->common.value.string, status); - return_ACPI_STATUS(status); - } - - /* Second arg is the data register (must already exist) */ - - arg = arg->common.next; - status = - acpi_ns_lookup(walk_state->scope_info, arg->common.value.string, - ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE, - ACPI_NS_SEARCH_PARENT, walk_state, - &info.data_register_node); - if (ACPI_FAILURE(status)) { - ACPI_ERROR_NAMESPACE(arg->common.value.string, status); - return_ACPI_STATUS(status); - } - - /* Next arg is the field flags */ - - arg = arg->common.next; - info.field_flags = (u8) arg->common.value.integer; - - /* Each remaining arg is a Named Field */ - - info.field_type = ACPI_TYPE_LOCAL_INDEX_FIELD; - info.region_node = region_node; - - status = acpi_ds_get_field_names(&info, walk_state, arg->common.next); - - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/dispatcher/dsinit.c b/drivers/acpi/dispatcher/dsinit.c deleted file mode 100644 index 4f1cdd823fcc..000000000000 --- a/drivers/acpi/dispatcher/dsinit.c +++ /dev/null @@ -1,205 +0,0 @@ -/****************************************************************************** - * - * Module Name: dsinit - Object initialization namespace walk - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_DISPATCHER -ACPI_MODULE_NAME("dsinit") - -/* Local prototypes */ -static acpi_status -acpi_ds_init_one_object(acpi_handle obj_handle, - u32 level, void *context, void **return_value); - -/******************************************************************************* - * - * FUNCTION: acpi_ds_init_one_object - * - * PARAMETERS: obj_handle - Node for the object - * Level - Current nesting level - * Context - Points to a init info struct - * return_value - Not used - * - * RETURN: Status - * - * DESCRIPTION: Callback from acpi_walk_namespace. Invoked for every object - * within the namespace. - * - * Currently, the only objects that require initialization are: - * 1) Methods - * 2) Operation Regions - * - ******************************************************************************/ - -static acpi_status -acpi_ds_init_one_object(acpi_handle obj_handle, - u32 level, void *context, void **return_value) -{ - struct acpi_init_walk_info *info = - (struct acpi_init_walk_info *)context; - struct acpi_namespace_node *node = - (struct acpi_namespace_node *)obj_handle; - acpi_object_type type; - acpi_status status; - - ACPI_FUNCTION_ENTRY(); - - /* - * We are only interested in NS nodes owned by the table that - * was just loaded - */ - if (node->owner_id != info->owner_id) { - return (AE_OK); - } - - info->object_count++; - - /* And even then, we are only interested in a few object types */ - - type = acpi_ns_get_type(obj_handle); - - switch (type) { - case ACPI_TYPE_REGION: - - status = acpi_ds_initialize_region(obj_handle); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "During Region initialization %p [%4.4s]", - obj_handle, - acpi_ut_get_node_name(obj_handle))); - } - - info->op_region_count++; - break; - - case ACPI_TYPE_METHOD: - - info->method_count++; - break; - - case ACPI_TYPE_DEVICE: - - info->device_count++; - break; - - default: - break; - } - - /* - * We ignore errors from above, and always return OK, since - * we don't want to abort the walk on a single error. - */ - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_initialize_objects - * - * PARAMETERS: table_desc - Descriptor for parent ACPI table - * start_node - Root of subtree to be initialized. - * - * RETURN: Status - * - * DESCRIPTION: Walk the namespace starting at "StartNode" and perform any - * necessary initialization on the objects found therein - * - ******************************************************************************/ - -acpi_status -acpi_ds_initialize_objects(u32 table_index, - struct acpi_namespace_node * start_node) -{ - acpi_status status; - struct acpi_init_walk_info info; - struct acpi_table_header *table; - acpi_owner_id owner_id; - - ACPI_FUNCTION_TRACE(ds_initialize_objects); - - status = acpi_tb_get_owner_id(table_index, &owner_id); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "**** Starting initialization of namespace objects ****\n")); - ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "Parsing all Control Methods:")); - - info.method_count = 0; - info.op_region_count = 0; - info.object_count = 0; - info.device_count = 0; - info.table_index = table_index; - info.owner_id = owner_id; - - /* Walk entire namespace from the supplied root */ - - status = acpi_walk_namespace(ACPI_TYPE_ANY, start_node, ACPI_UINT32_MAX, - acpi_ds_init_one_object, &info, NULL); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, "During WalkNamespace")); - } - - status = acpi_get_table_by_index(table_index, &table); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, - "\nTable [%4.4s](id %4.4X) - %hd Objects with %hd Devices %hd Methods %hd Regions\n", - table->signature, owner_id, info.object_count, - info.device_count, info.method_count, - info.op_region_count)); - - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "%hd Methods, %hd Regions\n", info.method_count, - info.op_region_count)); - - return_ACPI_STATUS(AE_OK); -} diff --git a/drivers/acpi/dispatcher/dsmethod.c b/drivers/acpi/dispatcher/dsmethod.c deleted file mode 100644 index 333c8560d9f8..000000000000 --- a/drivers/acpi/dispatcher/dsmethod.c +++ /dev/null @@ -1,629 +0,0 @@ -/****************************************************************************** - * - * Module Name: dsmethod - Parser/Interpreter interface - control method parsing - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include -#include -#ifdef ACPI_DISASSEMBLER -#include -#endif - -#define _COMPONENT ACPI_DISPATCHER -ACPI_MODULE_NAME("dsmethod") - -/* Local prototypes */ -static acpi_status -acpi_ds_create_method_mutex(union acpi_operand_object *method_desc); - -/******************************************************************************* - * - * FUNCTION: acpi_ds_method_error - * - * PARAMETERS: Status - Execution status - * walk_state - Current state - * - * RETURN: Status - * - * DESCRIPTION: Called on method error. Invoke the global exception handler if - * present, dump the method data if the disassembler is configured - * - * Note: Allows the exception handler to change the status code - * - ******************************************************************************/ - -acpi_status -acpi_ds_method_error(acpi_status status, struct acpi_walk_state *walk_state) -{ - ACPI_FUNCTION_ENTRY(); - - /* Ignore AE_OK and control exception codes */ - - if (ACPI_SUCCESS(status) || (status & AE_CODE_CONTROL)) { - return (status); - } - - /* Invoke the global exception handler */ - - if (acpi_gbl_exception_handler) { - - /* Exit the interpreter, allow handler to execute methods */ - - acpi_ex_exit_interpreter(); - - /* - * Handler can map the exception code to anything it wants, including - * AE_OK, in which case the executing method will not be aborted. - */ - status = acpi_gbl_exception_handler(status, - walk_state->method_node ? - walk_state->method_node-> - name.integer : 0, - walk_state->opcode, - walk_state->aml_offset, - NULL); - acpi_ex_enter_interpreter(); - } - - acpi_ds_clear_implicit_return(walk_state); - -#ifdef ACPI_DISASSEMBLER - if (ACPI_FAILURE(status)) { - - /* Display method locals/args if disassembler is present */ - - acpi_dm_dump_method_info(status, walk_state, walk_state->op); - } -#endif - - return (status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_create_method_mutex - * - * PARAMETERS: obj_desc - The method object - * - * RETURN: Status - * - * DESCRIPTION: Create a mutex object for a serialized control method - * - ******************************************************************************/ - -static acpi_status -acpi_ds_create_method_mutex(union acpi_operand_object *method_desc) -{ - union acpi_operand_object *mutex_desc; - acpi_status status; - - ACPI_FUNCTION_TRACE(ds_create_method_mutex); - - /* Create the new mutex object */ - - mutex_desc = acpi_ut_create_internal_object(ACPI_TYPE_MUTEX); - if (!mutex_desc) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Create the actual OS Mutex */ - - status = acpi_os_create_mutex(&mutex_desc->mutex.os_mutex); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - mutex_desc->mutex.sync_level = method_desc->method.sync_level; - method_desc->method.mutex = mutex_desc; - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_begin_method_execution - * - * PARAMETERS: method_node - Node of the method - * obj_desc - The method object - * walk_state - current state, NULL if not yet executing - * a method. - * - * RETURN: Status - * - * DESCRIPTION: Prepare a method for execution. Parses the method if necessary, - * increments the thread count, and waits at the method semaphore - * for clearance to execute. - * - ******************************************************************************/ - -acpi_status -acpi_ds_begin_method_execution(struct acpi_namespace_node *method_node, - union acpi_operand_object *obj_desc, - struct acpi_walk_state *walk_state) -{ - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE_PTR(ds_begin_method_execution, method_node); - - if (!method_node) { - return_ACPI_STATUS(AE_NULL_ENTRY); - } - - /* Prevent wraparound of thread count */ - - if (obj_desc->method.thread_count == ACPI_UINT8_MAX) { - ACPI_ERROR((AE_INFO, - "Method reached maximum reentrancy limit (255)")); - return_ACPI_STATUS(AE_AML_METHOD_LIMIT); - } - - /* - * If this method is serialized, we need to acquire the method mutex. - */ - if (obj_desc->method.method_flags & AML_METHOD_SERIALIZED) { - /* - * Create a mutex for the method if it is defined to be Serialized - * and a mutex has not already been created. We defer the mutex creation - * until a method is actually executed, to minimize the object count - */ - if (!obj_desc->method.mutex) { - status = acpi_ds_create_method_mutex(obj_desc); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - - /* - * The current_sync_level (per-thread) must be less than or equal to - * the sync level of the method. This mechanism provides some - * deadlock prevention - * - * Top-level method invocation has no walk state at this point - */ - if (walk_state && - (walk_state->thread->current_sync_level > - obj_desc->method.mutex->mutex.sync_level)) { - ACPI_ERROR((AE_INFO, - "Cannot acquire Mutex for method [%4.4s], current SyncLevel is too large (%d)", - acpi_ut_get_node_name(method_node), - walk_state->thread->current_sync_level)); - - return_ACPI_STATUS(AE_AML_MUTEX_ORDER); - } - - /* - * Obtain the method mutex if necessary. Do not acquire mutex for a - * recursive call. - */ - if (!walk_state || - !obj_desc->method.mutex->mutex.thread_id || - (walk_state->thread->thread_id != - obj_desc->method.mutex->mutex.thread_id)) { - /* - * Acquire the method mutex. This releases the interpreter if we - * block (and reacquires it before it returns) - */ - status = - acpi_ex_system_wait_mutex(obj_desc->method.mutex-> - mutex.os_mutex, - ACPI_WAIT_FOREVER); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Update the mutex and walk info and save the original sync_level */ - - if (walk_state) { - obj_desc->method.mutex->mutex. - original_sync_level = - walk_state->thread->current_sync_level; - - obj_desc->method.mutex->mutex.thread_id = - walk_state->thread->thread_id; - walk_state->thread->current_sync_level = - obj_desc->method.sync_level; - } else { - obj_desc->method.mutex->mutex. - original_sync_level = - obj_desc->method.mutex->mutex.sync_level; - } - } - - /* Always increase acquisition depth */ - - obj_desc->method.mutex->mutex.acquisition_depth++; - } - - /* - * Allocate an Owner ID for this method, only if this is the first thread - * to begin concurrent execution. We only need one owner_id, even if the - * method is invoked recursively. - */ - if (!obj_desc->method.owner_id) { - status = acpi_ut_allocate_owner_id(&obj_desc->method.owner_id); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - } - - /* - * Increment the method parse tree thread count since it has been - * reentered one more time (even if it is the same thread) - */ - obj_desc->method.thread_count++; - return_ACPI_STATUS(status); - - cleanup: - /* On error, must release the method mutex (if present) */ - - if (obj_desc->method.mutex) { - acpi_os_release_mutex(obj_desc->method.mutex->mutex.os_mutex); - } - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_call_control_method - * - * PARAMETERS: Thread - Info for this thread - * this_walk_state - Current walk state - * Op - Current Op to be walked - * - * RETURN: Status - * - * DESCRIPTION: Transfer execution to a called control method - * - ******************************************************************************/ - -acpi_status -acpi_ds_call_control_method(struct acpi_thread_state *thread, - struct acpi_walk_state *this_walk_state, - union acpi_parse_object *op) -{ - acpi_status status; - struct acpi_namespace_node *method_node; - struct acpi_walk_state *next_walk_state = NULL; - union acpi_operand_object *obj_desc; - struct acpi_evaluate_info *info; - u32 i; - - ACPI_FUNCTION_TRACE_PTR(ds_call_control_method, this_walk_state); - - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "Calling method %p, currentstate=%p\n", - this_walk_state->prev_op, this_walk_state)); - - /* - * Get the namespace entry for the control method we are about to call - */ - method_node = this_walk_state->method_call_node; - if (!method_node) { - return_ACPI_STATUS(AE_NULL_ENTRY); - } - - obj_desc = acpi_ns_get_attached_object(method_node); - if (!obj_desc) { - return_ACPI_STATUS(AE_NULL_OBJECT); - } - - /* Init for new method, possibly wait on method mutex */ - - status = acpi_ds_begin_method_execution(method_node, obj_desc, - this_walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Begin method parse/execution. Create a new walk state */ - - next_walk_state = acpi_ds_create_walk_state(obj_desc->method.owner_id, - NULL, obj_desc, thread); - if (!next_walk_state) { - status = AE_NO_MEMORY; - goto cleanup; - } - - /* - * The resolved arguments were put on the previous walk state's operand - * stack. Operands on the previous walk state stack always - * start at index 0. Also, null terminate the list of arguments - */ - this_walk_state->operands[this_walk_state->num_operands] = NULL; - - /* - * Allocate and initialize the evaluation information block - * TBD: this is somewhat inefficient, should change interface to - * ds_init_aml_walk. For now, keeps this struct off the CPU stack - */ - info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info)); - if (!info) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - info->parameters = &this_walk_state->operands[0]; - - status = acpi_ds_init_aml_walk(next_walk_state, NULL, method_node, - obj_desc->method.aml_start, - obj_desc->method.aml_length, info, - ACPI_IMODE_EXECUTE); - - ACPI_FREE(info); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - /* - * Delete the operands on the previous walkstate operand stack - * (they were copied to new objects) - */ - for (i = 0; i < obj_desc->method.param_count; i++) { - acpi_ut_remove_reference(this_walk_state->operands[i]); - this_walk_state->operands[i] = NULL; - } - - /* Clear the operand stack */ - - this_walk_state->num_operands = 0; - - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "**** Begin nested execution of [%4.4s] **** WalkState=%p\n", - method_node->name.ascii, next_walk_state)); - - /* Invoke an internal method if necessary */ - - if (obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY) { - status = obj_desc->method.implementation(next_walk_state); - if (status == AE_OK) { - status = AE_CTRL_TERMINATE; - } - } - - return_ACPI_STATUS(status); - - cleanup: - - /* On error, we must terminate the method properly */ - - acpi_ds_terminate_control_method(obj_desc, next_walk_state); - if (next_walk_state) { - acpi_ds_delete_walk_state(next_walk_state); - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_restart_control_method - * - * PARAMETERS: walk_state - State for preempted method (caller) - * return_desc - Return value from the called method - * - * RETURN: Status - * - * DESCRIPTION: Restart a method that was preempted by another (nested) method - * invocation. Handle the return value (if any) from the callee. - * - ******************************************************************************/ - -acpi_status -acpi_ds_restart_control_method(struct acpi_walk_state *walk_state, - union acpi_operand_object *return_desc) -{ - acpi_status status; - int same_as_implicit_return; - - ACPI_FUNCTION_TRACE_PTR(ds_restart_control_method, walk_state); - - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "****Restart [%4.4s] Op %p ReturnValueFromCallee %p\n", - acpi_ut_get_node_name(walk_state->method_node), - walk_state->method_call_op, return_desc)); - - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - " ReturnFromThisMethodUsed?=%X ResStack %p Walk %p\n", - walk_state->return_used, - walk_state->results, walk_state)); - - /* Did the called method return a value? */ - - if (return_desc) { - - /* Is the implicit return object the same as the return desc? */ - - same_as_implicit_return = - (walk_state->implicit_return_obj == return_desc); - - /* Are we actually going to use the return value? */ - - if (walk_state->return_used) { - - /* Save the return value from the previous method */ - - status = acpi_ds_result_push(return_desc, walk_state); - if (ACPI_FAILURE(status)) { - acpi_ut_remove_reference(return_desc); - return_ACPI_STATUS(status); - } - - /* - * Save as THIS method's return value in case it is returned - * immediately to yet another method - */ - walk_state->return_desc = return_desc; - } - - /* - * The following code is the optional support for the so-called - * "implicit return". Some AML code assumes that the last value of the - * method is "implicitly" returned to the caller, in the absence of an - * explicit return value. - * - * Just save the last result of the method as the return value. - * - * NOTE: this is optional because the ASL language does not actually - * support this behavior. - */ - else if (!acpi_ds_do_implicit_return - (return_desc, walk_state, FALSE) - || same_as_implicit_return) { - /* - * Delete the return value if it will not be used by the - * calling method or remove one reference if the explicit return - * is the same as the implicit return value. - */ - acpi_ut_remove_reference(return_desc); - } - } - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_terminate_control_method - * - * PARAMETERS: method_desc - Method object - * walk_state - State associated with the method - * - * RETURN: None - * - * DESCRIPTION: Terminate a control method. Delete everything that the method - * created, delete all locals and arguments, and delete the parse - * tree if requested. - * - * MUTEX: Interpreter is locked - * - ******************************************************************************/ - -void -acpi_ds_terminate_control_method(union acpi_operand_object *method_desc, - struct acpi_walk_state *walk_state) -{ - - ACPI_FUNCTION_TRACE_PTR(ds_terminate_control_method, walk_state); - - /* method_desc is required, walk_state is optional */ - - if (!method_desc) { - return_VOID; - } - - if (walk_state) { - - /* Delete all arguments and locals */ - - acpi_ds_method_data_delete_all(walk_state); - - /* - * If method is serialized, release the mutex and restore the - * current sync level for this thread - */ - if (method_desc->method.mutex) { - - /* Acquisition Depth handles recursive calls */ - - method_desc->method.mutex->mutex.acquisition_depth--; - if (!method_desc->method.mutex->mutex.acquisition_depth) { - walk_state->thread->current_sync_level = - method_desc->method.mutex->mutex. - original_sync_level; - - acpi_os_release_mutex(method_desc->method. - mutex->mutex.os_mutex); - method_desc->method.mutex->mutex.thread_id = NULL; - } - } - - /* - * Delete any namespace objects created anywhere within - * the namespace by the execution of this method - */ - acpi_ns_delete_namespace_by_owner(method_desc->method.owner_id); - } - - /* Decrement the thread count on the method */ - - if (method_desc->method.thread_count) { - method_desc->method.thread_count--; - } else { - ACPI_ERROR((AE_INFO, "Invalid zero thread count in method")); - } - - /* Are there any other threads currently executing this method? */ - - if (method_desc->method.thread_count) { - /* - * Additional threads. Do not release the owner_id in this case, - * we immediately reuse it for the next thread executing this method - */ - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "*** Completed execution of one thread, %d threads remaining\n", - method_desc->method.thread_count)); - } else { - /* This is the only executing thread for this method */ - - /* - * Support to dynamically change a method from not_serialized to - * Serialized if it appears that the method is incorrectly written and - * does not support multiple thread execution. The best example of this - * is if such a method creates namespace objects and blocks. A second - * thread will fail with an AE_ALREADY_EXISTS exception - * - * This code is here because we must wait until the last thread exits - * before creating the synchronization semaphore. - */ - if ((method_desc->method.method_flags & AML_METHOD_SERIALIZED) - && (!method_desc->method.mutex)) { - (void)acpi_ds_create_method_mutex(method_desc); - } - - /* No more threads, we can free the owner_id */ - - acpi_ut_release_owner_id(&method_desc->method.owner_id); - } - - return_VOID; -} diff --git a/drivers/acpi/dispatcher/dsmthdat.c b/drivers/acpi/dispatcher/dsmthdat.c deleted file mode 100644 index a1a11996a651..000000000000 --- a/drivers/acpi/dispatcher/dsmthdat.c +++ /dev/null @@ -1,718 +0,0 @@ -/******************************************************************************* - * - * Module Name: dsmthdat - control method arguments and local variables - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_DISPATCHER -ACPI_MODULE_NAME("dsmthdat") - -/* Local prototypes */ -static void -acpi_ds_method_data_delete_value(u8 type, - u32 index, struct acpi_walk_state *walk_state); - -static acpi_status -acpi_ds_method_data_set_value(u8 type, - u32 index, - union acpi_operand_object *object, - struct acpi_walk_state *walk_state); - -#ifdef ACPI_OBSOLETE_FUNCTIONS -acpi_object_type -acpi_ds_method_data_get_type(u16 opcode, - u32 index, struct acpi_walk_state *walk_state); -#endif - -/******************************************************************************* - * - * FUNCTION: acpi_ds_method_data_init - * - * PARAMETERS: walk_state - Current walk state object - * - * RETURN: Status - * - * DESCRIPTION: Initialize the data structures that hold the method's arguments - * and locals. The data struct is an array of namespace nodes for - * each - this allows ref_of and de_ref_of to work properly for these - * special data types. - * - * NOTES: walk_state fields are initialized to zero by the - * ACPI_ALLOCATE_ZEROED(). - * - * A pseudo-Namespace Node is assigned to each argument and local - * so that ref_of() can return a pointer to the Node. - * - ******************************************************************************/ - -void acpi_ds_method_data_init(struct acpi_walk_state *walk_state) -{ - u32 i; - - ACPI_FUNCTION_TRACE(ds_method_data_init); - - /* Init the method arguments */ - - for (i = 0; i < ACPI_METHOD_NUM_ARGS; i++) { - ACPI_MOVE_32_TO_32(&walk_state->arguments[i].name, - NAMEOF_ARG_NTE); - walk_state->arguments[i].name.integer |= (i << 24); - walk_state->arguments[i].descriptor_type = ACPI_DESC_TYPE_NAMED; - walk_state->arguments[i].type = ACPI_TYPE_ANY; - walk_state->arguments[i].flags = - ANOBJ_END_OF_PEER_LIST | ANOBJ_METHOD_ARG; - } - - /* Init the method locals */ - - for (i = 0; i < ACPI_METHOD_NUM_LOCALS; i++) { - ACPI_MOVE_32_TO_32(&walk_state->local_variables[i].name, - NAMEOF_LOCAL_NTE); - - walk_state->local_variables[i].name.integer |= (i << 24); - walk_state->local_variables[i].descriptor_type = - ACPI_DESC_TYPE_NAMED; - walk_state->local_variables[i].type = ACPI_TYPE_ANY; - walk_state->local_variables[i].flags = - ANOBJ_END_OF_PEER_LIST | ANOBJ_METHOD_LOCAL; - } - - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_method_data_delete_all - * - * PARAMETERS: walk_state - Current walk state object - * - * RETURN: None - * - * DESCRIPTION: Delete method locals and arguments. Arguments are only - * deleted if this method was called from another method. - * - ******************************************************************************/ - -void acpi_ds_method_data_delete_all(struct acpi_walk_state *walk_state) -{ - u32 index; - - ACPI_FUNCTION_TRACE(ds_method_data_delete_all); - - /* Detach the locals */ - - for (index = 0; index < ACPI_METHOD_NUM_LOCALS; index++) { - if (walk_state->local_variables[index].object) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Deleting Local%d=%p\n", - index, - walk_state->local_variables[index]. - object)); - - /* Detach object (if present) and remove a reference */ - - acpi_ns_detach_object(&walk_state-> - local_variables[index]); - } - } - - /* Detach the arguments */ - - for (index = 0; index < ACPI_METHOD_NUM_ARGS; index++) { - if (walk_state->arguments[index].object) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Deleting Arg%d=%p\n", - index, - walk_state->arguments[index].object)); - - /* Detach object (if present) and remove a reference */ - - acpi_ns_detach_object(&walk_state->arguments[index]); - } - } - - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_method_data_init_args - * - * PARAMETERS: *Params - Pointer to a parameter list for the method - * max_param_count - The arg count for this method - * walk_state - Current walk state object - * - * RETURN: Status - * - * DESCRIPTION: Initialize arguments for a method. The parameter list is a list - * of ACPI operand objects, either null terminated or whose length - * is defined by max_param_count. - * - ******************************************************************************/ - -acpi_status -acpi_ds_method_data_init_args(union acpi_operand_object **params, - u32 max_param_count, - struct acpi_walk_state *walk_state) -{ - acpi_status status; - u32 index = 0; - - ACPI_FUNCTION_TRACE_PTR(ds_method_data_init_args, params); - - if (!params) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "No param list passed to method\n")); - return_ACPI_STATUS(AE_OK); - } - - /* Copy passed parameters into the new method stack frame */ - - while ((index < ACPI_METHOD_NUM_ARGS) && - (index < max_param_count) && params[index]) { - /* - * A valid parameter. - * Store the argument in the method/walk descriptor. - * Do not copy the arg in order to implement call by reference - */ - status = acpi_ds_method_data_set_value(ACPI_REFCLASS_ARG, index, - params[index], - walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - index++; - } - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%d args passed to method\n", index)); - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_method_data_get_node - * - * PARAMETERS: Type - Either ACPI_REFCLASS_LOCAL or - * ACPI_REFCLASS_ARG - * Index - Which Local or Arg whose type to get - * walk_state - Current walk state object - * Node - Where the node is returned. - * - * RETURN: Status and node - * - * DESCRIPTION: Get the Node associated with a local or arg. - * - ******************************************************************************/ - -acpi_status -acpi_ds_method_data_get_node(u8 type, - u32 index, - struct acpi_walk_state *walk_state, - struct acpi_namespace_node **node) -{ - ACPI_FUNCTION_TRACE(ds_method_data_get_node); - - /* - * Method Locals and Arguments are supported - */ - switch (type) { - case ACPI_REFCLASS_LOCAL: - - if (index > ACPI_METHOD_MAX_LOCAL) { - ACPI_ERROR((AE_INFO, - "Local index %d is invalid (max %d)", - index, ACPI_METHOD_MAX_LOCAL)); - return_ACPI_STATUS(AE_AML_INVALID_INDEX); - } - - /* Return a pointer to the pseudo-node */ - - *node = &walk_state->local_variables[index]; - break; - - case ACPI_REFCLASS_ARG: - - if (index > ACPI_METHOD_MAX_ARG) { - ACPI_ERROR((AE_INFO, - "Arg index %d is invalid (max %d)", - index, ACPI_METHOD_MAX_ARG)); - return_ACPI_STATUS(AE_AML_INVALID_INDEX); - } - - /* Return a pointer to the pseudo-node */ - - *node = &walk_state->arguments[index]; - break; - - default: - ACPI_ERROR((AE_INFO, "Type %d is invalid", type)); - return_ACPI_STATUS(AE_TYPE); - } - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_method_data_set_value - * - * PARAMETERS: Type - Either ACPI_REFCLASS_LOCAL or - * ACPI_REFCLASS_ARG - * Index - Which Local or Arg to get - * Object - Object to be inserted into the stack entry - * walk_state - Current walk state object - * - * RETURN: Status - * - * DESCRIPTION: Insert an object onto the method stack at entry Opcode:Index. - * Note: There is no "implicit conversion" for locals. - * - ******************************************************************************/ - -static acpi_status -acpi_ds_method_data_set_value(u8 type, - u32 index, - union acpi_operand_object *object, - struct acpi_walk_state *walk_state) -{ - acpi_status status; - struct acpi_namespace_node *node; - - ACPI_FUNCTION_TRACE(ds_method_data_set_value); - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "NewObj %p Type %2.2X, Refs=%d [%s]\n", object, - type, object->common.reference_count, - acpi_ut_get_type_name(object->common.type))); - - /* Get the namespace node for the arg/local */ - - status = acpi_ds_method_data_get_node(type, index, walk_state, &node); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * Increment ref count so object can't be deleted while installed. - * NOTE: We do not copy the object in order to preserve the call by - * reference semantics of ACPI Control Method invocation. - * (See ACPI Specification 2.0_c) - */ - acpi_ut_add_reference(object); - - /* Install the object */ - - node->object = object; - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_method_data_get_value - * - * PARAMETERS: Type - Either ACPI_REFCLASS_LOCAL or - * ACPI_REFCLASS_ARG - * Index - Which local_var or argument to get - * walk_state - Current walk state object - * dest_desc - Where Arg or Local value is returned - * - * RETURN: Status - * - * DESCRIPTION: Retrieve value of selected Arg or Local for this method - * Used only in acpi_ex_resolve_to_value(). - * - ******************************************************************************/ - -acpi_status -acpi_ds_method_data_get_value(u8 type, - u32 index, - struct acpi_walk_state *walk_state, - union acpi_operand_object **dest_desc) -{ - acpi_status status; - struct acpi_namespace_node *node; - union acpi_operand_object *object; - - ACPI_FUNCTION_TRACE(ds_method_data_get_value); - - /* Validate the object descriptor */ - - if (!dest_desc) { - ACPI_ERROR((AE_INFO, "Null object descriptor pointer")); - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Get the namespace node for the arg/local */ - - status = acpi_ds_method_data_get_node(type, index, walk_state, &node); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Get the object from the node */ - - object = node->object; - - /* Examine the returned object, it must be valid. */ - - if (!object) { - /* - * Index points to uninitialized object. - * This means that either 1) The expected argument was - * not passed to the method, or 2) A local variable - * was referenced by the method (via the ASL) - * before it was initialized. Either case is an error. - */ - - /* If slack enabled, init the local_x/arg_x to an Integer of value zero */ - - if (acpi_gbl_enable_interpreter_slack) { - object = - acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); - if (!object) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - object->integer.value = 0; - node->object = object; - } - - /* Otherwise, return the error */ - - else - switch (type) { - case ACPI_REFCLASS_ARG: - - ACPI_ERROR((AE_INFO, - "Uninitialized Arg[%d] at node %p", - index, node)); - - return_ACPI_STATUS(AE_AML_UNINITIALIZED_ARG); - - case ACPI_REFCLASS_LOCAL: - - ACPI_ERROR((AE_INFO, - "Uninitialized Local[%d] at node %p", - index, node)); - - return_ACPI_STATUS(AE_AML_UNINITIALIZED_LOCAL); - - default: - - ACPI_ERROR((AE_INFO, - "Not a Arg/Local opcode: %X", - type)); - return_ACPI_STATUS(AE_AML_INTERNAL); - } - } - - /* - * The Index points to an initialized and valid object. - * Return an additional reference to the object - */ - *dest_desc = object; - acpi_ut_add_reference(object); - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_method_data_delete_value - * - * PARAMETERS: Type - Either ACPI_REFCLASS_LOCAL or - * ACPI_REFCLASS_ARG - * Index - Which local_var or argument to delete - * walk_state - Current walk state object - * - * RETURN: None - * - * DESCRIPTION: Delete the entry at Opcode:Index. Inserts - * a null into the stack slot after the object is deleted. - * - ******************************************************************************/ - -static void -acpi_ds_method_data_delete_value(u8 type, - u32 index, struct acpi_walk_state *walk_state) -{ - acpi_status status; - struct acpi_namespace_node *node; - union acpi_operand_object *object; - - ACPI_FUNCTION_TRACE(ds_method_data_delete_value); - - /* Get the namespace node for the arg/local */ - - status = acpi_ds_method_data_get_node(type, index, walk_state, &node); - if (ACPI_FAILURE(status)) { - return_VOID; - } - - /* Get the associated object */ - - object = acpi_ns_get_attached_object(node); - - /* - * Undefine the Arg or Local by setting its descriptor - * pointer to NULL. Locals/Args can contain both - * ACPI_OPERAND_OBJECTS and ACPI_NAMESPACE_NODEs - */ - node->object = NULL; - - if ((object) && - (ACPI_GET_DESCRIPTOR_TYPE(object) == ACPI_DESC_TYPE_OPERAND)) { - /* - * There is a valid object. - * Decrement the reference count by one to balance the - * increment when the object was stored. - */ - acpi_ut_remove_reference(object); - } - - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_store_object_to_local - * - * PARAMETERS: Type - Either ACPI_REFCLASS_LOCAL or - * ACPI_REFCLASS_ARG - * Index - Which Local or Arg to set - * obj_desc - Value to be stored - * walk_state - Current walk state - * - * RETURN: Status - * - * DESCRIPTION: Store a value in an Arg or Local. The obj_desc is installed - * as the new value for the Arg or Local and the reference count - * for obj_desc is incremented. - * - ******************************************************************************/ - -acpi_status -acpi_ds_store_object_to_local(u8 type, - u32 index, - union acpi_operand_object *obj_desc, - struct acpi_walk_state *walk_state) -{ - acpi_status status; - struct acpi_namespace_node *node; - union acpi_operand_object *current_obj_desc; - union acpi_operand_object *new_obj_desc; - - ACPI_FUNCTION_TRACE(ds_store_object_to_local); - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Type=%2.2X Index=%d Obj=%p\n", - type, index, obj_desc)); - - /* Parameter validation */ - - if (!obj_desc) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Get the namespace node for the arg/local */ - - status = acpi_ds_method_data_get_node(type, index, walk_state, &node); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - current_obj_desc = acpi_ns_get_attached_object(node); - if (current_obj_desc == obj_desc) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Obj=%p already installed!\n", - obj_desc)); - return_ACPI_STATUS(status); - } - - /* - * If the reference count on the object is more than one, we must - * take a copy of the object before we store. A reference count - * of exactly 1 means that the object was just created during the - * evaluation of an expression, and we can safely use it since it - * is not used anywhere else. - */ - new_obj_desc = obj_desc; - if (obj_desc->common.reference_count > 1) { - status = - acpi_ut_copy_iobject_to_iobject(obj_desc, &new_obj_desc, - walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - - /* - * If there is an object already in this slot, we either - * have to delete it, or if this is an argument and there - * is an object reference stored there, we have to do - * an indirect store! - */ - if (current_obj_desc) { - /* - * Check for an indirect store if an argument - * contains an object reference (stored as an Node). - * We don't allow this automatic dereferencing for - * locals, since a store to a local should overwrite - * anything there, including an object reference. - * - * If both Arg0 and Local0 contain ref_of (Local4): - * - * Store (1, Arg0) - Causes indirect store to local4 - * Store (1, Local0) - Stores 1 in local0, overwriting - * the reference to local4 - * Store (1, de_refof (Local0)) - Causes indirect store to local4 - * - * Weird, but true. - */ - if (type == ACPI_REFCLASS_ARG) { - /* - * If we have a valid reference object that came from ref_of(), - * do the indirect store - */ - if ((ACPI_GET_DESCRIPTOR_TYPE(current_obj_desc) == - ACPI_DESC_TYPE_OPERAND) - && (current_obj_desc->common.type == - ACPI_TYPE_LOCAL_REFERENCE) - && (current_obj_desc->reference.class == - ACPI_REFCLASS_REFOF)) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Arg (%p) is an ObjRef(Node), storing in node %p\n", - new_obj_desc, - current_obj_desc)); - - /* - * Store this object to the Node (perform the indirect store) - * NOTE: No implicit conversion is performed, as per the ACPI - * specification rules on storing to Locals/Args. - */ - status = - acpi_ex_store_object_to_node(new_obj_desc, - current_obj_desc-> - reference. - object, - walk_state, - ACPI_NO_IMPLICIT_CONVERSION); - - /* Remove local reference if we copied the object above */ - - if (new_obj_desc != obj_desc) { - acpi_ut_remove_reference(new_obj_desc); - } - return_ACPI_STATUS(status); - } - } - - /* Delete the existing object before storing the new one */ - - acpi_ds_method_data_delete_value(type, index, walk_state); - } - - /* - * Install the Obj descriptor (*new_obj_desc) into - * the descriptor for the Arg or Local. - * (increments the object reference count by one) - */ - status = - acpi_ds_method_data_set_value(type, index, new_obj_desc, - walk_state); - - /* Remove local reference if we copied the object above */ - - if (new_obj_desc != obj_desc) { - acpi_ut_remove_reference(new_obj_desc); - } - - return_ACPI_STATUS(status); -} - -#ifdef ACPI_OBSOLETE_FUNCTIONS -/******************************************************************************* - * - * FUNCTION: acpi_ds_method_data_get_type - * - * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP - * Index - Which Local or Arg whose type to get - * walk_state - Current walk state object - * - * RETURN: Data type of current value of the selected Arg or Local - * - * DESCRIPTION: Get the type of the object stored in the Local or Arg - * - ******************************************************************************/ - -acpi_object_type -acpi_ds_method_data_get_type(u16 opcode, - u32 index, struct acpi_walk_state *walk_state) -{ - acpi_status status; - struct acpi_namespace_node *node; - union acpi_operand_object *object; - - ACPI_FUNCTION_TRACE(ds_method_data_get_type); - - /* Get the namespace node for the arg/local */ - - status = acpi_ds_method_data_get_node(opcode, index, walk_state, &node); - if (ACPI_FAILURE(status)) { - return_VALUE((ACPI_TYPE_NOT_FOUND)); - } - - /* Get the object */ - - object = acpi_ns_get_attached_object(node); - if (!object) { - - /* Uninitialized local/arg, return TYPE_ANY */ - - return_VALUE(ACPI_TYPE_ANY); - } - - /* Get the object type */ - - return_VALUE(ACPI_GET_OBJECT_TYPE(object)); -} -#endif diff --git a/drivers/acpi/dispatcher/dsobject.c b/drivers/acpi/dispatcher/dsobject.c deleted file mode 100644 index 6e6c73cc39ff..000000000000 --- a/drivers/acpi/dispatcher/dsobject.c +++ /dev/null @@ -1,813 +0,0 @@ -/****************************************************************************** - * - * Module Name: dsobject - Dispatcher object management routines - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_DISPATCHER -ACPI_MODULE_NAME("dsobject") - -/* Local prototypes */ -static acpi_status -acpi_ds_build_internal_object(struct acpi_walk_state *walk_state, - union acpi_parse_object *op, - union acpi_operand_object **obj_desc_ptr); - -#ifndef ACPI_NO_METHOD_EXECUTION -/******************************************************************************* - * - * FUNCTION: acpi_ds_build_internal_object - * - * PARAMETERS: walk_state - Current walk state - * Op - Parser object to be translated - * obj_desc_ptr - Where the ACPI internal object is returned - * - * RETURN: Status - * - * DESCRIPTION: Translate a parser Op object to the equivalent namespace object - * Simple objects are any objects other than a package object! - * - ******************************************************************************/ - -static acpi_status -acpi_ds_build_internal_object(struct acpi_walk_state *walk_state, - union acpi_parse_object *op, - union acpi_operand_object **obj_desc_ptr) -{ - union acpi_operand_object *obj_desc; - acpi_status status; - - ACPI_FUNCTION_TRACE(ds_build_internal_object); - - *obj_desc_ptr = NULL; - if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) { - /* - * This is a named object reference. If this name was - * previously looked up in the namespace, it was stored in this op. - * Otherwise, go ahead and look it up now - */ - if (!op->common.node) { - status = acpi_ns_lookup(walk_state->scope_info, - op->common.value.string, - ACPI_TYPE_ANY, - ACPI_IMODE_EXECUTE, - ACPI_NS_SEARCH_PARENT | - ACPI_NS_DONT_OPEN_SCOPE, NULL, - ACPI_CAST_INDIRECT_PTR(struct - acpi_namespace_node, - &(op-> - common. - node))); - if (ACPI_FAILURE(status)) { - - /* Check if we are resolving a named reference within a package */ - - if ((status == AE_NOT_FOUND) - && (acpi_gbl_enable_interpreter_slack) - && - ((op->common.parent->common.aml_opcode == - AML_PACKAGE_OP) - || (op->common.parent->common.aml_opcode == - AML_VAR_PACKAGE_OP))) { - /* - * We didn't find the target and we are populating elements - * of a package - ignore if slack enabled. Some ASL code - * contains dangling invalid references in packages and - * expects that no exception will be issued. Leave the - * element as a null element. It cannot be used, but it - * can be overwritten by subsequent ASL code - this is - * typically the case. - */ - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Ignoring unresolved reference in package [%4.4s]\n", - walk_state-> - scope_info->scope. - node->name.ascii)); - - return_ACPI_STATUS(AE_OK); - } else { - ACPI_ERROR_NAMESPACE(op->common.value. - string, status); - } - - return_ACPI_STATUS(status); - } - } - - /* Special object resolution for elements of a package */ - - if ((op->common.parent->common.aml_opcode == AML_PACKAGE_OP) || - (op->common.parent->common.aml_opcode == - AML_VAR_PACKAGE_OP)) { - /* - * Attempt to resolve the node to a value before we insert it into - * the package. If this is a reference to a common data type, - * resolve it immediately. According to the ACPI spec, package - * elements can only be "data objects" or method references. - * Attempt to resolve to an Integer, Buffer, String or Package. - * If cannot, return the named reference (for things like Devices, - * Methods, etc.) Buffer Fields and Fields will resolve to simple - * objects (int/buf/str/pkg). - * - * NOTE: References to things like Devices, Methods, Mutexes, etc. - * will remain as named references. This behavior is not described - * in the ACPI spec, but it appears to be an oversight. - */ - obj_desc = - ACPI_CAST_PTR(union acpi_operand_object, - op->common.node); - - status = - acpi_ex_resolve_node_to_value(ACPI_CAST_INDIRECT_PTR - (struct - acpi_namespace_node, - &obj_desc), - walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - switch (op->common.node->type) { - /* - * For these types, we need the actual node, not the subobject. - * However, the subobject did not get an extra reference count above. - * - * TBD: should ex_resolve_node_to_value be changed to fix this? - */ - case ACPI_TYPE_DEVICE: - case ACPI_TYPE_THERMAL: - - acpi_ut_add_reference(op->common.node->object); - - /*lint -fallthrough */ - /* - * For these types, we need the actual node, not the subobject. - * The subobject got an extra reference count in ex_resolve_node_to_value. - */ - case ACPI_TYPE_MUTEX: - case ACPI_TYPE_METHOD: - case ACPI_TYPE_POWER: - case ACPI_TYPE_PROCESSOR: - case ACPI_TYPE_EVENT: - case ACPI_TYPE_REGION: - - /* We will create a reference object for these types below */ - break; - - default: - /* - * All other types - the node was resolved to an actual - * object, we are done. - */ - goto exit; - } - } - } - - /* Create and init a new internal ACPI object */ - - obj_desc = acpi_ut_create_internal_object((acpi_ps_get_opcode_info - (op->common.aml_opcode))-> - object_type); - if (!obj_desc) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - status = - acpi_ds_init_object_from_op(walk_state, op, op->common.aml_opcode, - &obj_desc); - if (ACPI_FAILURE(status)) { - acpi_ut_remove_reference(obj_desc); - return_ACPI_STATUS(status); - } - - exit: - *obj_desc_ptr = obj_desc; - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_build_internal_buffer_obj - * - * PARAMETERS: walk_state - Current walk state - * Op - Parser object to be translated - * buffer_length - Length of the buffer - * obj_desc_ptr - Where the ACPI internal object is returned - * - * RETURN: Status - * - * DESCRIPTION: Translate a parser Op package object to the equivalent - * namespace object - * - ******************************************************************************/ - -acpi_status -acpi_ds_build_internal_buffer_obj(struct acpi_walk_state *walk_state, - union acpi_parse_object *op, - u32 buffer_length, - union acpi_operand_object **obj_desc_ptr) -{ - union acpi_parse_object *arg; - union acpi_operand_object *obj_desc; - union acpi_parse_object *byte_list; - u32 byte_list_length = 0; - - ACPI_FUNCTION_TRACE(ds_build_internal_buffer_obj); - - /* - * If we are evaluating a Named buffer object "Name (xxxx, Buffer)". - * The buffer object already exists (from the NS node), otherwise it must - * be created. - */ - obj_desc = *obj_desc_ptr; - if (!obj_desc) { - - /* Create a new buffer object */ - - obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER); - *obj_desc_ptr = obj_desc; - if (!obj_desc) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - } - - /* - * Second arg is the buffer data (optional) byte_list can be either - * individual bytes or a string initializer. In either case, a - * byte_list appears in the AML. - */ - arg = op->common.value.arg; /* skip first arg */ - - byte_list = arg->named.next; - if (byte_list) { - if (byte_list->common.aml_opcode != AML_INT_BYTELIST_OP) { - ACPI_ERROR((AE_INFO, - "Expecting bytelist, got AML opcode %X in op %p", - byte_list->common.aml_opcode, byte_list)); - - acpi_ut_remove_reference(obj_desc); - return (AE_TYPE); - } - - byte_list_length = (u32) byte_list->common.value.integer; - } - - /* - * The buffer length (number of bytes) will be the larger of: - * 1) The specified buffer length and - * 2) The length of the initializer byte list - */ - obj_desc->buffer.length = buffer_length; - if (byte_list_length > buffer_length) { - obj_desc->buffer.length = byte_list_length; - } - - /* Allocate the buffer */ - - if (obj_desc->buffer.length == 0) { - obj_desc->buffer.pointer = NULL; - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Buffer defined with zero length in AML, creating\n")); - } else { - obj_desc->buffer.pointer = - ACPI_ALLOCATE_ZEROED(obj_desc->buffer.length); - if (!obj_desc->buffer.pointer) { - acpi_ut_delete_object_desc(obj_desc); - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Initialize buffer from the byte_list (if present) */ - - if (byte_list) { - ACPI_MEMCPY(obj_desc->buffer.pointer, - byte_list->named.data, byte_list_length); - } - } - - obj_desc->buffer.flags |= AOPOBJ_DATA_VALID; - op->common.node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_desc); - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_build_internal_package_obj - * - * PARAMETERS: walk_state - Current walk state - * Op - Parser object to be translated - * element_count - Number of elements in the package - this is - * the num_elements argument to Package() - * obj_desc_ptr - Where the ACPI internal object is returned - * - * RETURN: Status - * - * DESCRIPTION: Translate a parser Op package object to the equivalent - * namespace object - * - * NOTE: The number of elements in the package will be always be the num_elements - * count, regardless of the number of elements in the package list. If - * num_elements is smaller, only that many package list elements are used. - * if num_elements is larger, the Package object is padded out with - * objects of type Uninitialized (as per ACPI spec.) - * - * Even though the ASL compilers do not allow num_elements to be smaller - * than the Package list length (for the fixed length package opcode), some - * BIOS code modifies the AML on the fly to adjust the num_elements, and - * this code compensates for that. This also provides compatibility with - * other AML interpreters. - * - ******************************************************************************/ - -acpi_status -acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state, - union acpi_parse_object *op, - u32 element_count, - union acpi_operand_object **obj_desc_ptr) -{ - union acpi_parse_object *arg; - union acpi_parse_object *parent; - union acpi_operand_object *obj_desc = NULL; - acpi_status status = AE_OK; - unsigned i; - u16 index; - u16 reference_count; - - ACPI_FUNCTION_TRACE(ds_build_internal_package_obj); - - /* Find the parent of a possibly nested package */ - - parent = op->common.parent; - while ((parent->common.aml_opcode == AML_PACKAGE_OP) || - (parent->common.aml_opcode == AML_VAR_PACKAGE_OP)) { - parent = parent->common.parent; - } - - /* - * If we are evaluating a Named package object "Name (xxxx, Package)", - * the package object already exists, otherwise it must be created. - */ - obj_desc = *obj_desc_ptr; - if (!obj_desc) { - obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_PACKAGE); - *obj_desc_ptr = obj_desc; - if (!obj_desc) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - obj_desc->package.node = parent->common.node; - } - - /* - * Allocate the element array (array of pointers to the individual - * objects) based on the num_elements parameter. Add an extra pointer slot - * so that the list is always null terminated. - */ - obj_desc->package.elements = ACPI_ALLOCATE_ZEROED(((acpi_size) - element_count + - 1) * sizeof(void *)); - - if (!obj_desc->package.elements) { - acpi_ut_delete_object_desc(obj_desc); - return_ACPI_STATUS(AE_NO_MEMORY); - } - - obj_desc->package.count = element_count; - - /* - * Initialize the elements of the package, up to the num_elements count. - * Package is automatically padded with uninitialized (NULL) elements - * if num_elements is greater than the package list length. Likewise, - * Package is truncated if num_elements is less than the list length. - */ - arg = op->common.value.arg; - arg = arg->common.next; - for (i = 0; arg && (i < element_count); i++) { - if (arg->common.aml_opcode == AML_INT_RETURN_VALUE_OP) { - if (arg->common.node->type == ACPI_TYPE_METHOD) { - /* - * A method reference "looks" to the parser to be a method - * invocation, so we special case it here - */ - arg->common.aml_opcode = AML_INT_NAMEPATH_OP; - status = - acpi_ds_build_internal_object(walk_state, - arg, - &obj_desc-> - package. - elements[i]); - } else { - /* This package element is already built, just get it */ - - obj_desc->package.elements[i] = - ACPI_CAST_PTR(union acpi_operand_object, - arg->common.node); - } - } else { - status = acpi_ds_build_internal_object(walk_state, arg, - &obj_desc-> - package. - elements[i]); - } - - if (*obj_desc_ptr) { - - /* Existing package, get existing reference count */ - - reference_count = - (*obj_desc_ptr)->common.reference_count; - if (reference_count > 1) { - - /* Make new element ref count match original ref count */ - - for (index = 0; index < (reference_count - 1); - index++) { - acpi_ut_add_reference((obj_desc-> - package. - elements[i])); - } - } - } - - arg = arg->common.next; - } - - /* Check for match between num_elements and actual length of package_list */ - - if (arg) { - /* - * num_elements was exhausted, but there are remaining elements in the - * package_list. - * - * Note: technically, this is an error, from ACPI spec: "It is an error - * for NumElements to be less than the number of elements in the - * PackageList". However, for now, we just print an error message and - * no exception is returned. - */ - while (arg) { - - /* Find out how many elements there really are */ - - i++; - arg = arg->common.next; - } - - ACPI_WARNING((AE_INFO, - "Package List length (%X) larger than NumElements count (%X), truncated\n", - i, element_count)); - } else if (i < element_count) { - /* - * Arg list (elements) was exhausted, but we did not reach num_elements count. - * Note: this is not an error, the package is padded out with NULLs. - */ - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Package List length (%X) smaller than NumElements count (%X), padded with null elements\n", - i, element_count)); - } - - obj_desc->package.flags |= AOPOBJ_DATA_VALID; - op->common.node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_desc); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_create_node - * - * PARAMETERS: walk_state - Current walk state - * Node - NS Node to be initialized - * Op - Parser object to be translated - * - * RETURN: Status - * - * DESCRIPTION: Create the object to be associated with a namespace node - * - ******************************************************************************/ - -acpi_status -acpi_ds_create_node(struct acpi_walk_state *walk_state, - struct acpi_namespace_node *node, - union acpi_parse_object *op) -{ - acpi_status status; - union acpi_operand_object *obj_desc; - - ACPI_FUNCTION_TRACE_PTR(ds_create_node, op); - - /* - * Because of the execution pass through the non-control-method - * parts of the table, we can arrive here twice. Only init - * the named object node the first time through - */ - if (acpi_ns_get_attached_object(node)) { - return_ACPI_STATUS(AE_OK); - } - - if (!op->common.value.arg) { - - /* No arguments, there is nothing to do */ - - return_ACPI_STATUS(AE_OK); - } - - /* Build an internal object for the argument(s) */ - - status = acpi_ds_build_internal_object(walk_state, op->common.value.arg, - &obj_desc); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Re-type the object according to its argument */ - - node->type = ACPI_GET_OBJECT_TYPE(obj_desc); - - /* Attach obj to node */ - - status = acpi_ns_attach_object(node, obj_desc, node->type); - - /* Remove local reference to the object */ - - acpi_ut_remove_reference(obj_desc); - return_ACPI_STATUS(status); -} - -#endif /* ACPI_NO_METHOD_EXECUTION */ - -/******************************************************************************* - * - * FUNCTION: acpi_ds_init_object_from_op - * - * PARAMETERS: walk_state - Current walk state - * Op - Parser op used to init the internal object - * Opcode - AML opcode associated with the object - * ret_obj_desc - Namespace object to be initialized - * - * RETURN: Status - * - * DESCRIPTION: Initialize a namespace object from a parser Op and its - * associated arguments. The namespace object is a more compact - * representation of the Op and its arguments. - * - ******************************************************************************/ - -acpi_status -acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state, - union acpi_parse_object *op, - u16 opcode, - union acpi_operand_object **ret_obj_desc) -{ - const struct acpi_opcode_info *op_info; - union acpi_operand_object *obj_desc; - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(ds_init_object_from_op); - - obj_desc = *ret_obj_desc; - op_info = acpi_ps_get_opcode_info(opcode); - if (op_info->class == AML_CLASS_UNKNOWN) { - - /* Unknown opcode */ - - return_ACPI_STATUS(AE_TYPE); - } - - /* Perform per-object initialization */ - - switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { - case ACPI_TYPE_BUFFER: - - /* - * Defer evaluation of Buffer term_arg operand - */ - obj_desc->buffer.node = - ACPI_CAST_PTR(struct acpi_namespace_node, - walk_state->operands[0]); - obj_desc->buffer.aml_start = op->named.data; - obj_desc->buffer.aml_length = op->named.length; - break; - - case ACPI_TYPE_PACKAGE: - - /* - * Defer evaluation of Package term_arg operand - */ - obj_desc->package.node = - ACPI_CAST_PTR(struct acpi_namespace_node, - walk_state->operands[0]); - obj_desc->package.aml_start = op->named.data; - obj_desc->package.aml_length = op->named.length; - break; - - case ACPI_TYPE_INTEGER: - - switch (op_info->type) { - case AML_TYPE_CONSTANT: - /* - * Resolve AML Constants here - AND ONLY HERE! - * All constants are integers. - * We mark the integer with a flag that indicates that it started - * life as a constant -- so that stores to constants will perform - * as expected (noop). zero_op is used as a placeholder for optional - * target operands. - */ - obj_desc->common.flags = AOPOBJ_AML_CONSTANT; - - switch (opcode) { - case AML_ZERO_OP: - - obj_desc->integer.value = 0; - break; - - case AML_ONE_OP: - - obj_desc->integer.value = 1; - break; - - case AML_ONES_OP: - - obj_desc->integer.value = ACPI_INTEGER_MAX; - - /* Truncate value if we are executing from a 32-bit ACPI table */ - -#ifndef ACPI_NO_METHOD_EXECUTION - acpi_ex_truncate_for32bit_table(obj_desc); -#endif - break; - - case AML_REVISION_OP: - - obj_desc->integer.value = ACPI_CA_VERSION; - break; - - default: - - ACPI_ERROR((AE_INFO, - "Unknown constant opcode %X", - opcode)); - status = AE_AML_OPERAND_TYPE; - break; - } - break; - - case AML_TYPE_LITERAL: - - obj_desc->integer.value = op->common.value.integer; -#ifndef ACPI_NO_METHOD_EXECUTION - acpi_ex_truncate_for32bit_table(obj_desc); -#endif - break; - - default: - ACPI_ERROR((AE_INFO, "Unknown Integer type %X", - op_info->type)); - status = AE_AML_OPERAND_TYPE; - break; - } - break; - - case ACPI_TYPE_STRING: - - obj_desc->string.pointer = op->common.value.string; - obj_desc->string.length = - (u32) ACPI_STRLEN(op->common.value.string); - - /* - * The string is contained in the ACPI table, don't ever try - * to delete it - */ - obj_desc->common.flags |= AOPOBJ_STATIC_POINTER; - break; - - case ACPI_TYPE_METHOD: - break; - - case ACPI_TYPE_LOCAL_REFERENCE: - - switch (op_info->type) { - case AML_TYPE_LOCAL_VARIABLE: - - /* Local ID (0-7) is (AML opcode - base AML_LOCAL_OP) */ - - obj_desc->reference.value = opcode - AML_LOCAL_OP; - obj_desc->reference.class = ACPI_REFCLASS_LOCAL; - -#ifndef ACPI_NO_METHOD_EXECUTION - status = - acpi_ds_method_data_get_node(ACPI_REFCLASS_LOCAL, - obj_desc->reference. - value, walk_state, - ACPI_CAST_INDIRECT_PTR - (struct - acpi_namespace_node, - &obj_desc->reference. - object)); -#endif - break; - - case AML_TYPE_METHOD_ARGUMENT: - - /* Arg ID (0-6) is (AML opcode - base AML_ARG_OP) */ - - obj_desc->reference.value = opcode - AML_ARG_OP; - obj_desc->reference.class = ACPI_REFCLASS_ARG; - -#ifndef ACPI_NO_METHOD_EXECUTION - status = acpi_ds_method_data_get_node(ACPI_REFCLASS_ARG, - obj_desc-> - reference.value, - walk_state, - ACPI_CAST_INDIRECT_PTR - (struct - acpi_namespace_node, - &obj_desc-> - reference. - object)); -#endif - break; - - default: /* Object name or Debug object */ - - switch (op->common.aml_opcode) { - case AML_INT_NAMEPATH_OP: - - /* Node was saved in Op */ - - obj_desc->reference.node = op->common.node; - obj_desc->reference.object = - op->common.node->object; - obj_desc->reference.class = ACPI_REFCLASS_NAME; - break; - - case AML_DEBUG_OP: - - obj_desc->reference.class = ACPI_REFCLASS_DEBUG; - break; - - default: - - ACPI_ERROR((AE_INFO, - "Unimplemented reference type for AML opcode: %4.4X", - opcode)); - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - break; - } - break; - - default: - - ACPI_ERROR((AE_INFO, "Unimplemented data type: %X", - ACPI_GET_OBJECT_TYPE(obj_desc))); - - status = AE_AML_OPERAND_TYPE; - break; - } - - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/dispatcher/dsopcode.c b/drivers/acpi/dispatcher/dsopcode.c deleted file mode 100644 index cb8a0d3109f0..000000000000 --- a/drivers/acpi/dispatcher/dsopcode.c +++ /dev/null @@ -1,1469 +0,0 @@ -/****************************************************************************** - * - * Module Name: dsopcode - Dispatcher Op Region support and handling of - * "control" opcodes - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_DISPATCHER -ACPI_MODULE_NAME("dsopcode") - -/* Local prototypes */ -static acpi_status -acpi_ds_execute_arguments(struct acpi_namespace_node *node, - struct acpi_namespace_node *scope_node, - u32 aml_length, u8 * aml_start); - -static acpi_status -acpi_ds_init_buffer_field(u16 aml_opcode, - union acpi_operand_object *obj_desc, - union acpi_operand_object *buffer_desc, - union acpi_operand_object *offset_desc, - union acpi_operand_object *length_desc, - union acpi_operand_object *result_desc); - -/******************************************************************************* - * - * FUNCTION: acpi_ds_execute_arguments - * - * PARAMETERS: Node - Object NS node - * scope_node - Parent NS node - * aml_length - Length of executable AML - * aml_start - Pointer to the AML - * - * RETURN: Status. - * - * DESCRIPTION: Late (deferred) execution of region or field arguments - * - ******************************************************************************/ - -static acpi_status -acpi_ds_execute_arguments(struct acpi_namespace_node *node, - struct acpi_namespace_node *scope_node, - u32 aml_length, u8 * aml_start) -{ - acpi_status status; - union acpi_parse_object *op; - struct acpi_walk_state *walk_state; - - ACPI_FUNCTION_TRACE(ds_execute_arguments); - - /* - * Allocate a new parser op to be the root of the parsed tree - */ - op = acpi_ps_alloc_op(AML_INT_EVAL_SUBTREE_OP); - if (!op) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Save the Node for use in acpi_ps_parse_aml */ - - op->common.node = scope_node; - - /* Create and initialize a new parser state */ - - walk_state = acpi_ds_create_walk_state(0, NULL, NULL, NULL); - if (!walk_state) { - status = AE_NO_MEMORY; - goto cleanup; - } - - status = acpi_ds_init_aml_walk(walk_state, op, NULL, aml_start, - aml_length, NULL, ACPI_IMODE_LOAD_PASS1); - if (ACPI_FAILURE(status)) { - acpi_ds_delete_walk_state(walk_state); - goto cleanup; - } - - /* Mark this parse as a deferred opcode */ - - walk_state->parse_flags = ACPI_PARSE_DEFERRED_OP; - walk_state->deferred_node = node; - - /* Pass1: Parse the entire declaration */ - - status = acpi_ps_parse_aml(walk_state); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - /* Get and init the Op created above */ - - op->common.node = node; - acpi_ps_delete_parse_tree(op); - - /* Evaluate the deferred arguments */ - - op = acpi_ps_alloc_op(AML_INT_EVAL_SUBTREE_OP); - if (!op) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - op->common.node = scope_node; - - /* Create and initialize a new parser state */ - - walk_state = acpi_ds_create_walk_state(0, NULL, NULL, NULL); - if (!walk_state) { - status = AE_NO_MEMORY; - goto cleanup; - } - - /* Execute the opcode and arguments */ - - status = acpi_ds_init_aml_walk(walk_state, op, NULL, aml_start, - aml_length, NULL, ACPI_IMODE_EXECUTE); - if (ACPI_FAILURE(status)) { - acpi_ds_delete_walk_state(walk_state); - goto cleanup; - } - - /* Mark this execution as a deferred opcode */ - - walk_state->deferred_node = node; - status = acpi_ps_parse_aml(walk_state); - - cleanup: - acpi_ps_delete_parse_tree(op); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_get_buffer_field_arguments - * - * PARAMETERS: obj_desc - A valid buffer_field object - * - * RETURN: Status. - * - * DESCRIPTION: Get buffer_field Buffer and Index. This implements the late - * evaluation of these field attributes. - * - ******************************************************************************/ - -acpi_status -acpi_ds_get_buffer_field_arguments(union acpi_operand_object *obj_desc) -{ - union acpi_operand_object *extra_desc; - struct acpi_namespace_node *node; - acpi_status status; - - ACPI_FUNCTION_TRACE_PTR(ds_get_buffer_field_arguments, obj_desc); - - if (obj_desc->common.flags & AOPOBJ_DATA_VALID) { - return_ACPI_STATUS(AE_OK); - } - - /* Get the AML pointer (method object) and buffer_field node */ - - extra_desc = acpi_ns_get_secondary_object(obj_desc); - node = obj_desc->buffer_field.node; - - ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname - (ACPI_TYPE_BUFFER_FIELD, node, NULL)); - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "[%4.4s] BufferField Arg Init\n", - acpi_ut_get_node_name(node))); - - /* Execute the AML code for the term_arg arguments */ - - status = acpi_ds_execute_arguments(node, acpi_ns_get_parent_node(node), - extra_desc->extra.aml_length, - extra_desc->extra.aml_start); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_get_bank_field_arguments - * - * PARAMETERS: obj_desc - A valid bank_field object - * - * RETURN: Status. - * - * DESCRIPTION: Get bank_field bank_value. This implements the late - * evaluation of these field attributes. - * - ******************************************************************************/ - -acpi_status -acpi_ds_get_bank_field_arguments(union acpi_operand_object *obj_desc) -{ - union acpi_operand_object *extra_desc; - struct acpi_namespace_node *node; - acpi_status status; - - ACPI_FUNCTION_TRACE_PTR(ds_get_bank_field_arguments, obj_desc); - - if (obj_desc->common.flags & AOPOBJ_DATA_VALID) { - return_ACPI_STATUS(AE_OK); - } - - /* Get the AML pointer (method object) and bank_field node */ - - extra_desc = acpi_ns_get_secondary_object(obj_desc); - node = obj_desc->bank_field.node; - - ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname - (ACPI_TYPE_LOCAL_BANK_FIELD, node, NULL)); - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "[%4.4s] BankField Arg Init\n", - acpi_ut_get_node_name(node))); - - /* Execute the AML code for the term_arg arguments */ - - status = acpi_ds_execute_arguments(node, acpi_ns_get_parent_node(node), - extra_desc->extra.aml_length, - extra_desc->extra.aml_start); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_get_buffer_arguments - * - * PARAMETERS: obj_desc - A valid Buffer object - * - * RETURN: Status. - * - * DESCRIPTION: Get Buffer length and initializer byte list. This implements - * the late evaluation of these attributes. - * - ******************************************************************************/ - -acpi_status acpi_ds_get_buffer_arguments(union acpi_operand_object *obj_desc) -{ - struct acpi_namespace_node *node; - acpi_status status; - - ACPI_FUNCTION_TRACE_PTR(ds_get_buffer_arguments, obj_desc); - - if (obj_desc->common.flags & AOPOBJ_DATA_VALID) { - return_ACPI_STATUS(AE_OK); - } - - /* Get the Buffer node */ - - node = obj_desc->buffer.node; - if (!node) { - ACPI_ERROR((AE_INFO, - "No pointer back to NS node in buffer obj %p", - obj_desc)); - return_ACPI_STATUS(AE_AML_INTERNAL); - } - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Buffer Arg Init\n")); - - /* Execute the AML code for the term_arg arguments */ - - status = acpi_ds_execute_arguments(node, node, - obj_desc->buffer.aml_length, - obj_desc->buffer.aml_start); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_get_package_arguments - * - * PARAMETERS: obj_desc - A valid Package object - * - * RETURN: Status. - * - * DESCRIPTION: Get Package length and initializer byte list. This implements - * the late evaluation of these attributes. - * - ******************************************************************************/ - -acpi_status acpi_ds_get_package_arguments(union acpi_operand_object *obj_desc) -{ - struct acpi_namespace_node *node; - acpi_status status; - - ACPI_FUNCTION_TRACE_PTR(ds_get_package_arguments, obj_desc); - - if (obj_desc->common.flags & AOPOBJ_DATA_VALID) { - return_ACPI_STATUS(AE_OK); - } - - /* Get the Package node */ - - node = obj_desc->package.node; - if (!node) { - ACPI_ERROR((AE_INFO, - "No pointer back to NS node in package %p", - obj_desc)); - return_ACPI_STATUS(AE_AML_INTERNAL); - } - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Package Arg Init\n")); - - /* Execute the AML code for the term_arg arguments */ - - status = acpi_ds_execute_arguments(node, node, - obj_desc->package.aml_length, - obj_desc->package.aml_start); - return_ACPI_STATUS(status); -} - -/***************************************************************************** - * - * FUNCTION: acpi_ds_get_region_arguments - * - * PARAMETERS: obj_desc - A valid region object - * - * RETURN: Status. - * - * DESCRIPTION: Get region address and length. This implements the late - * evaluation of these region attributes. - * - ****************************************************************************/ - -acpi_status acpi_ds_get_region_arguments(union acpi_operand_object *obj_desc) -{ - struct acpi_namespace_node *node; - acpi_status status; - union acpi_operand_object *extra_desc; - - ACPI_FUNCTION_TRACE_PTR(ds_get_region_arguments, obj_desc); - - if (obj_desc->region.flags & AOPOBJ_DATA_VALID) { - return_ACPI_STATUS(AE_OK); - } - - extra_desc = acpi_ns_get_secondary_object(obj_desc); - if (!extra_desc) { - return_ACPI_STATUS(AE_NOT_EXIST); - } - - /* Get the Region node */ - - node = obj_desc->region.node; - - ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname - (ACPI_TYPE_REGION, node, NULL)); - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "[%4.4s] OpRegion Arg Init at AML %p\n", - acpi_ut_get_node_name(node), - extra_desc->extra.aml_start)); - - /* Execute the argument AML */ - - status = acpi_ds_execute_arguments(node, acpi_ns_get_parent_node(node), - extra_desc->extra.aml_length, - extra_desc->extra.aml_start); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Validate the region address/length via the host OS */ - - status = acpi_os_validate_address(obj_desc->region.space_id, - obj_desc->region.address, - (acpi_size) obj_desc->region.length, - acpi_ut_get_node_name(node)); - - if (ACPI_FAILURE(status)) { - /* - * Invalid address/length. We will emit an error message and mark - * the region as invalid, so that it will cause an additional error if - * it is ever used. Then return AE_OK. - */ - ACPI_EXCEPTION((AE_INFO, status, - "During address validation of OpRegion [%4.4s]", - node->name.ascii)); - obj_desc->common.flags |= AOPOBJ_INVALID; - status = AE_OK; - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_initialize_region - * - * PARAMETERS: obj_handle - Region namespace node - * - * RETURN: Status - * - * DESCRIPTION: Front end to ev_initialize_region - * - ******************************************************************************/ - -acpi_status acpi_ds_initialize_region(acpi_handle obj_handle) -{ - union acpi_operand_object *obj_desc; - acpi_status status; - - obj_desc = acpi_ns_get_attached_object(obj_handle); - - /* Namespace is NOT locked */ - - status = acpi_ev_initialize_region(obj_desc, FALSE); - return (status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_init_buffer_field - * - * PARAMETERS: aml_opcode - create_xxx_field - * obj_desc - buffer_field object - * buffer_desc - Host Buffer - * offset_desc - Offset into buffer - * length_desc - Length of field (CREATE_FIELD_OP only) - * result_desc - Where to store the result - * - * RETURN: Status - * - * DESCRIPTION: Perform actual initialization of a buffer field - * - ******************************************************************************/ - -static acpi_status -acpi_ds_init_buffer_field(u16 aml_opcode, - union acpi_operand_object *obj_desc, - union acpi_operand_object *buffer_desc, - union acpi_operand_object *offset_desc, - union acpi_operand_object *length_desc, - union acpi_operand_object *result_desc) -{ - u32 offset; - u32 bit_offset; - u32 bit_count; - u8 field_flags; - acpi_status status; - - ACPI_FUNCTION_TRACE_PTR(ds_init_buffer_field, obj_desc); - - /* Host object must be a Buffer */ - - if (ACPI_GET_OBJECT_TYPE(buffer_desc) != ACPI_TYPE_BUFFER) { - ACPI_ERROR((AE_INFO, - "Target of Create Field is not a Buffer object - %s", - acpi_ut_get_object_type_name(buffer_desc))); - - status = AE_AML_OPERAND_TYPE; - goto cleanup; - } - - /* - * The last parameter to all of these opcodes (result_desc) started - * out as a name_string, and should therefore now be a NS node - * after resolution in acpi_ex_resolve_operands(). - */ - if (ACPI_GET_DESCRIPTOR_TYPE(result_desc) != ACPI_DESC_TYPE_NAMED) { - ACPI_ERROR((AE_INFO, - "(%s) destination not a NS Node [%s]", - acpi_ps_get_opcode_name(aml_opcode), - acpi_ut_get_descriptor_name(result_desc))); - - status = AE_AML_OPERAND_TYPE; - goto cleanup; - } - - offset = (u32) offset_desc->integer.value; - - /* - * Setup the Bit offsets and counts, according to the opcode - */ - switch (aml_opcode) { - case AML_CREATE_FIELD_OP: - - /* Offset is in bits, count is in bits */ - - field_flags = AML_FIELD_ACCESS_BYTE; - bit_offset = offset; - bit_count = (u32) length_desc->integer.value; - - /* Must have a valid (>0) bit count */ - - if (bit_count == 0) { - ACPI_ERROR((AE_INFO, - "Attempt to CreateField of length zero")); - status = AE_AML_OPERAND_VALUE; - goto cleanup; - } - break; - - case AML_CREATE_BIT_FIELD_OP: - - /* Offset is in bits, Field is one bit */ - - bit_offset = offset; - bit_count = 1; - field_flags = AML_FIELD_ACCESS_BYTE; - break; - - case AML_CREATE_BYTE_FIELD_OP: - - /* Offset is in bytes, field is one byte */ - - bit_offset = 8 * offset; - bit_count = 8; - field_flags = AML_FIELD_ACCESS_BYTE; - break; - - case AML_CREATE_WORD_FIELD_OP: - - /* Offset is in bytes, field is one word */ - - bit_offset = 8 * offset; - bit_count = 16; - field_flags = AML_FIELD_ACCESS_WORD; - break; - - case AML_CREATE_DWORD_FIELD_OP: - - /* Offset is in bytes, field is one dword */ - - bit_offset = 8 * offset; - bit_count = 32; - field_flags = AML_FIELD_ACCESS_DWORD; - break; - - case AML_CREATE_QWORD_FIELD_OP: - - /* Offset is in bytes, field is one qword */ - - bit_offset = 8 * offset; - bit_count = 64; - field_flags = AML_FIELD_ACCESS_QWORD; - break; - - default: - - ACPI_ERROR((AE_INFO, - "Unknown field creation opcode %02x", aml_opcode)); - status = AE_AML_BAD_OPCODE; - goto cleanup; - } - - /* Entire field must fit within the current length of the buffer */ - - if ((bit_offset + bit_count) > (8 * (u32) buffer_desc->buffer.length)) { - ACPI_ERROR((AE_INFO, - "Field [%4.4s] at %d exceeds Buffer [%4.4s] size %d (bits)", - acpi_ut_get_node_name(result_desc), - bit_offset + bit_count, - acpi_ut_get_node_name(buffer_desc->buffer.node), - 8 * (u32) buffer_desc->buffer.length)); - status = AE_AML_BUFFER_LIMIT; - goto cleanup; - } - - /* - * Initialize areas of the field object that are common to all fields - * For field_flags, use LOCK_RULE = 0 (NO_LOCK), - * UPDATE_RULE = 0 (UPDATE_PRESERVE) - */ - status = acpi_ex_prep_common_field_object(obj_desc, field_flags, 0, - bit_offset, bit_count); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - obj_desc->buffer_field.buffer_obj = buffer_desc; - - /* Reference count for buffer_desc inherits obj_desc count */ - - buffer_desc->common.reference_count = (u16) - (buffer_desc->common.reference_count + - obj_desc->common.reference_count); - - cleanup: - - /* Always delete the operands */ - - acpi_ut_remove_reference(offset_desc); - acpi_ut_remove_reference(buffer_desc); - - if (aml_opcode == AML_CREATE_FIELD_OP) { - acpi_ut_remove_reference(length_desc); - } - - /* On failure, delete the result descriptor */ - - if (ACPI_FAILURE(status)) { - acpi_ut_remove_reference(result_desc); /* Result descriptor */ - } else { - /* Now the address and length are valid for this buffer_field */ - - obj_desc->buffer_field.flags |= AOPOBJ_DATA_VALID; - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_eval_buffer_field_operands - * - * PARAMETERS: walk_state - Current walk - * Op - A valid buffer_field Op object - * - * RETURN: Status - * - * DESCRIPTION: Get buffer_field Buffer and Index - * Called from acpi_ds_exec_end_op during buffer_field parse tree walk - * - ******************************************************************************/ - -acpi_status -acpi_ds_eval_buffer_field_operands(struct acpi_walk_state *walk_state, - union acpi_parse_object *op) -{ - acpi_status status; - union acpi_operand_object *obj_desc; - struct acpi_namespace_node *node; - union acpi_parse_object *next_op; - - ACPI_FUNCTION_TRACE_PTR(ds_eval_buffer_field_operands, op); - - /* - * This is where we evaluate the address and length fields of the - * create_xxx_field declaration - */ - node = op->common.node; - - /* next_op points to the op that holds the Buffer */ - - next_op = op->common.value.arg; - - /* Evaluate/create the address and length operands */ - - status = acpi_ds_create_operands(walk_state, next_op); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - obj_desc = acpi_ns_get_attached_object(node); - if (!obj_desc) { - return_ACPI_STATUS(AE_NOT_EXIST); - } - - /* Resolve the operands */ - - status = acpi_ex_resolve_operands(op->common.aml_opcode, - ACPI_WALK_OPERANDS, walk_state); - if (ACPI_FAILURE(status)) { - ACPI_ERROR((AE_INFO, "(%s) bad operand(s) (%X)", - acpi_ps_get_opcode_name(op->common.aml_opcode), - status)); - - return_ACPI_STATUS(status); - } - - /* Initialize the Buffer Field */ - - if (op->common.aml_opcode == AML_CREATE_FIELD_OP) { - - /* NOTE: Slightly different operands for this opcode */ - - status = - acpi_ds_init_buffer_field(op->common.aml_opcode, obj_desc, - walk_state->operands[0], - walk_state->operands[1], - walk_state->operands[2], - walk_state->operands[3]); - } else { - /* All other, create_xxx_field opcodes */ - - status = - acpi_ds_init_buffer_field(op->common.aml_opcode, obj_desc, - walk_state->operands[0], - walk_state->operands[1], NULL, - walk_state->operands[2]); - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_eval_region_operands - * - * PARAMETERS: walk_state - Current walk - * Op - A valid region Op object - * - * RETURN: Status - * - * DESCRIPTION: Get region address and length - * Called from acpi_ds_exec_end_op during op_region parse tree walk - * - ******************************************************************************/ - -acpi_status -acpi_ds_eval_region_operands(struct acpi_walk_state *walk_state, - union acpi_parse_object *op) -{ - acpi_status status; - union acpi_operand_object *obj_desc; - union acpi_operand_object *operand_desc; - struct acpi_namespace_node *node; - union acpi_parse_object *next_op; - - ACPI_FUNCTION_TRACE_PTR(ds_eval_region_operands, op); - - /* - * This is where we evaluate the address and length fields of the - * op_region declaration - */ - node = op->common.node; - - /* next_op points to the op that holds the space_iD */ - - next_op = op->common.value.arg; - - /* next_op points to address op */ - - next_op = next_op->common.next; - - /* Evaluate/create the address and length operands */ - - status = acpi_ds_create_operands(walk_state, next_op); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Resolve the length and address operands to numbers */ - - status = acpi_ex_resolve_operands(op->common.aml_opcode, - ACPI_WALK_OPERANDS, walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - obj_desc = acpi_ns_get_attached_object(node); - if (!obj_desc) { - return_ACPI_STATUS(AE_NOT_EXIST); - } - - /* - * Get the length operand and save it - * (at Top of stack) - */ - operand_desc = walk_state->operands[walk_state->num_operands - 1]; - - obj_desc->region.length = (u32) operand_desc->integer.value; - acpi_ut_remove_reference(operand_desc); - - /* - * Get the address and save it - * (at top of stack - 1) - */ - operand_desc = walk_state->operands[walk_state->num_operands - 2]; - - obj_desc->region.address = (acpi_physical_address) - operand_desc->integer.value; - acpi_ut_remove_reference(operand_desc); - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n", - obj_desc, - ACPI_FORMAT_NATIVE_UINT(obj_desc->region.address), - obj_desc->region.length)); - - /* Now the address and length are valid for this opregion */ - - obj_desc->region.flags |= AOPOBJ_DATA_VALID; - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_eval_table_region_operands - * - * PARAMETERS: walk_state - Current walk - * Op - A valid region Op object - * - * RETURN: Status - * - * DESCRIPTION: Get region address and length - * Called from acpi_ds_exec_end_op during data_table_region parse tree walk - * - ******************************************************************************/ - -acpi_status -acpi_ds_eval_table_region_operands(struct acpi_walk_state *walk_state, - union acpi_parse_object *op) -{ - acpi_status status; - union acpi_operand_object *obj_desc; - union acpi_operand_object **operand; - struct acpi_namespace_node *node; - union acpi_parse_object *next_op; - u32 table_index; - struct acpi_table_header *table; - - ACPI_FUNCTION_TRACE_PTR(ds_eval_table_region_operands, op); - - /* - * This is where we evaluate the signature_string and oem_iDString - * and oem_table_iDString of the data_table_region declaration - */ - node = op->common.node; - - /* next_op points to signature_string op */ - - next_op = op->common.value.arg; - - /* - * Evaluate/create the signature_string and oem_iDString - * and oem_table_iDString operands - */ - status = acpi_ds_create_operands(walk_state, next_op); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * Resolve the signature_string and oem_iDString - * and oem_table_iDString operands - */ - status = acpi_ex_resolve_operands(op->common.aml_opcode, - ACPI_WALK_OPERANDS, walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - operand = &walk_state->operands[0]; - - /* Find the ACPI table */ - - status = acpi_tb_find_table(operand[0]->string.pointer, - operand[1]->string.pointer, - operand[2]->string.pointer, &table_index); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - acpi_ut_remove_reference(operand[0]); - acpi_ut_remove_reference(operand[1]); - acpi_ut_remove_reference(operand[2]); - - status = acpi_get_table_by_index(table_index, &table); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - obj_desc = acpi_ns_get_attached_object(node); - if (!obj_desc) { - return_ACPI_STATUS(AE_NOT_EXIST); - } - - obj_desc->region.address = - (acpi_physical_address) ACPI_TO_INTEGER(table); - obj_desc->region.length = table->length; - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n", - obj_desc, - ACPI_FORMAT_NATIVE_UINT(obj_desc->region.address), - obj_desc->region.length)); - - /* Now the address and length are valid for this opregion */ - - obj_desc->region.flags |= AOPOBJ_DATA_VALID; - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_eval_data_object_operands - * - * PARAMETERS: walk_state - Current walk - * Op - A valid data_object Op object - * obj_desc - data_object - * - * RETURN: Status - * - * DESCRIPTION: Get the operands and complete the following data object types: - * Buffer, Package. - * - ******************************************************************************/ - -acpi_status -acpi_ds_eval_data_object_operands(struct acpi_walk_state *walk_state, - union acpi_parse_object *op, - union acpi_operand_object *obj_desc) -{ - acpi_status status; - union acpi_operand_object *arg_desc; - u32 length; - - ACPI_FUNCTION_TRACE(ds_eval_data_object_operands); - - /* The first operand (for all of these data objects) is the length */ - - /* - * Set proper index into operand stack for acpi_ds_obj_stack_push - * invoked inside acpi_ds_create_operand. - */ - walk_state->operand_index = walk_state->num_operands; - - status = acpi_ds_create_operand(walk_state, op->common.value.arg, 1); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - status = acpi_ex_resolve_operands(walk_state->opcode, - &(walk_state-> - operands[walk_state->num_operands - - 1]), walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Extract length operand */ - - arg_desc = walk_state->operands[walk_state->num_operands - 1]; - length = (u32) arg_desc->integer.value; - - /* Cleanup for length operand */ - - status = acpi_ds_obj_stack_pop(1, walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - acpi_ut_remove_reference(arg_desc); - - /* - * Create the actual data object - */ - switch (op->common.aml_opcode) { - case AML_BUFFER_OP: - - status = - acpi_ds_build_internal_buffer_obj(walk_state, op, length, - &obj_desc); - break; - - case AML_PACKAGE_OP: - case AML_VAR_PACKAGE_OP: - - status = - acpi_ds_build_internal_package_obj(walk_state, op, length, - &obj_desc); - break; - - default: - return_ACPI_STATUS(AE_AML_BAD_OPCODE); - } - - if (ACPI_SUCCESS(status)) { - /* - * Return the object in the walk_state, unless the parent is a package - - * in this case, the return object will be stored in the parse tree - * for the package. - */ - if ((!op->common.parent) || - ((op->common.parent->common.aml_opcode != AML_PACKAGE_OP) && - (op->common.parent->common.aml_opcode != - AML_VAR_PACKAGE_OP) - && (op->common.parent->common.aml_opcode != AML_NAME_OP))) { - walk_state->result_obj = obj_desc; - } - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_eval_bank_field_operands - * - * PARAMETERS: walk_state - Current walk - * Op - A valid bank_field Op object - * - * RETURN: Status - * - * DESCRIPTION: Get bank_field bank_value - * Called from acpi_ds_exec_end_op during bank_field parse tree walk - * - ******************************************************************************/ - -acpi_status -acpi_ds_eval_bank_field_operands(struct acpi_walk_state *walk_state, - union acpi_parse_object *op) -{ - acpi_status status; - union acpi_operand_object *obj_desc; - union acpi_operand_object *operand_desc; - struct acpi_namespace_node *node; - union acpi_parse_object *next_op; - union acpi_parse_object *arg; - - ACPI_FUNCTION_TRACE_PTR(ds_eval_bank_field_operands, op); - - /* - * This is where we evaluate the bank_value field of the - * bank_field declaration - */ - - /* next_op points to the op that holds the Region */ - - next_op = op->common.value.arg; - - /* next_op points to the op that holds the Bank Register */ - - next_op = next_op->common.next; - - /* next_op points to the op that holds the Bank Value */ - - next_op = next_op->common.next; - - /* - * Set proper index into operand stack for acpi_ds_obj_stack_push - * invoked inside acpi_ds_create_operand. - * - * We use walk_state->Operands[0] to store the evaluated bank_value - */ - walk_state->operand_index = 0; - - status = acpi_ds_create_operand(walk_state, next_op, 0); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - status = acpi_ex_resolve_to_value(&walk_state->operands[0], walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - ACPI_DUMP_OPERANDS(ACPI_WALK_OPERANDS, - acpi_ps_get_opcode_name(op->common.aml_opcode), 1); - /* - * Get the bank_value operand and save it - * (at Top of stack) - */ - operand_desc = walk_state->operands[0]; - - /* Arg points to the start Bank Field */ - - arg = acpi_ps_get_arg(op, 4); - while (arg) { - - /* Ignore OFFSET and ACCESSAS terms here */ - - if (arg->common.aml_opcode == AML_INT_NAMEDFIELD_OP) { - node = arg->common.node; - - obj_desc = acpi_ns_get_attached_object(node); - if (!obj_desc) { - return_ACPI_STATUS(AE_NOT_EXIST); - } - - obj_desc->bank_field.value = - (u32) operand_desc->integer.value; - } - - /* Move to next field in the list */ - - arg = arg->common.next; - } - - acpi_ut_remove_reference(operand_desc); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_exec_begin_control_op - * - * PARAMETERS: walk_list - The list that owns the walk stack - * Op - The control Op - * - * RETURN: Status - * - * DESCRIPTION: Handles all control ops encountered during control method - * execution. - * - ******************************************************************************/ - -acpi_status -acpi_ds_exec_begin_control_op(struct acpi_walk_state *walk_state, - union acpi_parse_object *op) -{ - acpi_status status = AE_OK; - union acpi_generic_state *control_state; - - ACPI_FUNCTION_NAME(ds_exec_begin_control_op); - - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p Opcode=%2.2X State=%p\n", op, - op->common.aml_opcode, walk_state)); - - switch (op->common.aml_opcode) { - case AML_WHILE_OP: - - /* - * If this is an additional iteration of a while loop, continue. - * There is no need to allocate a new control state. - */ - if (walk_state->control_state) { - if (walk_state->control_state->control.aml_predicate_start - == (walk_state->parser_state.aml - 1)) { - - /* Reset the state to start-of-loop */ - - walk_state->control_state->common.state = - ACPI_CONTROL_CONDITIONAL_EXECUTING; - break; - } - } - - /*lint -fallthrough */ - - case AML_IF_OP: - - /* - * IF/WHILE: Create a new control state to manage these - * constructs. We need to manage these as a stack, in order - * to handle nesting. - */ - control_state = acpi_ut_create_control_state(); - if (!control_state) { - status = AE_NO_MEMORY; - break; - } - /* - * Save a pointer to the predicate for multiple executions - * of a loop - */ - control_state->control.aml_predicate_start = - walk_state->parser_state.aml - 1; - control_state->control.package_end = - walk_state->parser_state.pkg_end; - control_state->control.opcode = op->common.aml_opcode; - - /* Push the control state on this walk's control stack */ - - acpi_ut_push_generic_state(&walk_state->control_state, - control_state); - break; - - case AML_ELSE_OP: - - /* Predicate is in the state object */ - /* If predicate is true, the IF was executed, ignore ELSE part */ - - if (walk_state->last_predicate) { - status = AE_CTRL_TRUE; - } - - break; - - case AML_RETURN_OP: - - break; - - default: - break; - } - - return (status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_exec_end_control_op - * - * PARAMETERS: walk_list - The list that owns the walk stack - * Op - The control Op - * - * RETURN: Status - * - * DESCRIPTION: Handles all control ops encountered during control method - * execution. - * - ******************************************************************************/ - -acpi_status -acpi_ds_exec_end_control_op(struct acpi_walk_state * walk_state, - union acpi_parse_object * op) -{ - acpi_status status = AE_OK; - union acpi_generic_state *control_state; - - ACPI_FUNCTION_NAME(ds_exec_end_control_op); - - switch (op->common.aml_opcode) { - case AML_IF_OP: - - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "[IF_OP] Op=%p\n", op)); - - /* - * Save the result of the predicate in case there is an - * ELSE to come - */ - walk_state->last_predicate = - (u8) walk_state->control_state->common.value; - - /* - * Pop the control state that was created at the start - * of the IF and free it - */ - control_state = - acpi_ut_pop_generic_state(&walk_state->control_state); - acpi_ut_delete_generic_state(control_state); - break; - - case AML_ELSE_OP: - - break; - - case AML_WHILE_OP: - - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "[WHILE_OP] Op=%p\n", op)); - - control_state = walk_state->control_state; - if (control_state->common.value) { - - /* Predicate was true, the body of the loop was just executed */ - - /* - * This loop counter mechanism allows the interpreter to escape - * possibly infinite loops. This can occur in poorly written AML - * when the hardware does not respond within a while loop and the - * loop does not implement a timeout. - */ - control_state->control.loop_count++; - if (control_state->control.loop_count > - ACPI_MAX_LOOP_ITERATIONS) { - status = AE_AML_INFINITE_LOOP; - break; - } - - /* - * Go back and evaluate the predicate and maybe execute the loop - * another time - */ - status = AE_CTRL_PENDING; - walk_state->aml_last_while = - control_state->control.aml_predicate_start; - break; - } - - /* Predicate was false, terminate this while loop */ - - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "[WHILE_OP] termination! Op=%p\n", op)); - - /* Pop this control state and free it */ - - control_state = - acpi_ut_pop_generic_state(&walk_state->control_state); - acpi_ut_delete_generic_state(control_state); - break; - - case AML_RETURN_OP: - - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "[RETURN_OP] Op=%p Arg=%p\n", op, - op->common.value.arg)); - - /* - * One optional operand -- the return value - * It can be either an immediate operand or a result that - * has been bubbled up the tree - */ - if (op->common.value.arg) { - - /* Since we have a real Return(), delete any implicit return */ - - acpi_ds_clear_implicit_return(walk_state); - - /* Return statement has an immediate operand */ - - status = - acpi_ds_create_operands(walk_state, - op->common.value.arg); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* - * If value being returned is a Reference (such as - * an arg or local), resolve it now because it may - * cease to exist at the end of the method. - */ - status = - acpi_ex_resolve_to_value(&walk_state->operands[0], - walk_state); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* - * Get the return value and save as the last result - * value. This is the only place where walk_state->return_desc - * is set to anything other than zero! - */ - walk_state->return_desc = walk_state->operands[0]; - } else if (walk_state->result_count) { - - /* Since we have a real Return(), delete any implicit return */ - - acpi_ds_clear_implicit_return(walk_state); - - /* - * The return value has come from a previous calculation. - * - * If value being returned is a Reference (such as - * an arg or local), resolve it now because it may - * cease to exist at the end of the method. - * - * Allow references created by the Index operator to return unchanged. - */ - if ((ACPI_GET_DESCRIPTOR_TYPE - (walk_state->results->results.obj_desc[0]) == - ACPI_DESC_TYPE_OPERAND) - && - (ACPI_GET_OBJECT_TYPE - (walk_state->results->results.obj_desc[0]) == - ACPI_TYPE_LOCAL_REFERENCE) - && ((walk_state->results->results.obj_desc[0])-> - reference.class != ACPI_REFCLASS_INDEX)) { - status = - acpi_ex_resolve_to_value(&walk_state-> - results->results. - obj_desc[0], - walk_state); - if (ACPI_FAILURE(status)) { - return (status); - } - } - - walk_state->return_desc = - walk_state->results->results.obj_desc[0]; - } else { - /* No return operand */ - - if (walk_state->num_operands) { - acpi_ut_remove_reference(walk_state-> - operands[0]); - } - - walk_state->operands[0] = NULL; - walk_state->num_operands = 0; - walk_state->return_desc = NULL; - } - - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "Completed RETURN_OP State=%p, RetVal=%p\n", - walk_state, walk_state->return_desc)); - - /* End the control method execution right now */ - - status = AE_CTRL_TERMINATE; - break; - - case AML_NOOP_OP: - - /* Just do nothing! */ - break; - - case AML_BREAK_POINT_OP: - - /* Call up to the OS service layer to handle this */ - - status = - acpi_os_signal(ACPI_SIGNAL_BREAKPOINT, - "Executed AML Breakpoint opcode"); - - /* If and when it returns, all done. */ - - break; - - case AML_BREAK_OP: - case AML_CONTINUE_OP: /* ACPI 2.0 */ - - /* Pop and delete control states until we find a while */ - - while (walk_state->control_state && - (walk_state->control_state->control.opcode != - AML_WHILE_OP)) { - control_state = - acpi_ut_pop_generic_state(&walk_state-> - control_state); - acpi_ut_delete_generic_state(control_state); - } - - /* No while found? */ - - if (!walk_state->control_state) { - return (AE_AML_NO_WHILE); - } - - /* Was: walk_state->aml_last_while = walk_state->control_state->Control.aml_predicate_start; */ - - walk_state->aml_last_while = - walk_state->control_state->control.package_end; - - /* Return status depending on opcode */ - - if (op->common.aml_opcode == AML_BREAK_OP) { - status = AE_CTRL_BREAK; - } else { - status = AE_CTRL_CONTINUE; - } - break; - - default: - - ACPI_ERROR((AE_INFO, "Unknown control opcode=%X Op=%p", - op->common.aml_opcode, op)); - - status = AE_AML_BAD_OPCODE; - break; - } - - return (status); -} diff --git a/drivers/acpi/dispatcher/dsutils.c b/drivers/acpi/dispatcher/dsutils.c deleted file mode 100644 index 9c88846ca2ce..000000000000 --- a/drivers/acpi/dispatcher/dsutils.c +++ /dev/null @@ -1,869 +0,0 @@ -/******************************************************************************* - * - * Module Name: dsutils - Dispatcher utilities - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_DISPATCHER -ACPI_MODULE_NAME("dsutils") - -/******************************************************************************* - * - * FUNCTION: acpi_ds_clear_implicit_return - * - * PARAMETERS: walk_state - Current State - * - * RETURN: None. - * - * DESCRIPTION: Clear and remove a reference on an implicit return value. Used - * to delete "stale" return values (if enabled, the return value - * from every operator is saved at least momentarily, in case the - * parent method exits.) - * - ******************************************************************************/ -void acpi_ds_clear_implicit_return(struct acpi_walk_state *walk_state) -{ - ACPI_FUNCTION_NAME(ds_clear_implicit_return); - - /* - * Slack must be enabled for this feature - */ - if (!acpi_gbl_enable_interpreter_slack) { - return; - } - - if (walk_state->implicit_return_obj) { - /* - * Delete any "stale" implicit return. However, in - * complex statements, the implicit return value can be - * bubbled up several levels. - */ - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "Removing reference on stale implicit return obj %p\n", - walk_state->implicit_return_obj)); - - acpi_ut_remove_reference(walk_state->implicit_return_obj); - walk_state->implicit_return_obj = NULL; - } -} - -#ifndef ACPI_NO_METHOD_EXECUTION -/******************************************************************************* - * - * FUNCTION: acpi_ds_do_implicit_return - * - * PARAMETERS: return_desc - The return value - * walk_state - Current State - * add_reference - True if a reference should be added to the - * return object - * - * RETURN: TRUE if implicit return enabled, FALSE otherwise - * - * DESCRIPTION: Implements the optional "implicit return". We save the result - * of every ASL operator and control method invocation in case the - * parent method exit. Before storing a new return value, we - * delete the previous return value. - * - ******************************************************************************/ - -u8 -acpi_ds_do_implicit_return(union acpi_operand_object *return_desc, - struct acpi_walk_state *walk_state, u8 add_reference) -{ - ACPI_FUNCTION_NAME(ds_do_implicit_return); - - /* - * Slack must be enabled for this feature, and we must - * have a valid return object - */ - if ((!acpi_gbl_enable_interpreter_slack) || (!return_desc)) { - return (FALSE); - } - - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "Result %p will be implicitly returned; Prev=%p\n", - return_desc, walk_state->implicit_return_obj)); - - /* - * Delete any "stale" implicit return value first. However, in - * complex statements, the implicit return value can be - * bubbled up several levels, so we don't clear the value if it - * is the same as the return_desc. - */ - if (walk_state->implicit_return_obj) { - if (walk_state->implicit_return_obj == return_desc) { - return (TRUE); - } - acpi_ds_clear_implicit_return(walk_state); - } - - /* Save the implicit return value, add a reference if requested */ - - walk_state->implicit_return_obj = return_desc; - if (add_reference) { - acpi_ut_add_reference(return_desc); - } - - return (TRUE); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_is_result_used - * - * PARAMETERS: Op - Current Op - * walk_state - Current State - * - * RETURN: TRUE if result is used, FALSE otherwise - * - * DESCRIPTION: Check if a result object will be used by the parent - * - ******************************************************************************/ - -u8 -acpi_ds_is_result_used(union acpi_parse_object * op, - struct acpi_walk_state * walk_state) -{ - const struct acpi_opcode_info *parent_info; - - ACPI_FUNCTION_TRACE_PTR(ds_is_result_used, op); - - /* Must have both an Op and a Result Object */ - - if (!op) { - ACPI_ERROR((AE_INFO, "Null Op")); - return_UINT8(TRUE); - } - - /* - * We know that this operator is not a - * Return() operator (would not come here.) The following code is the - * optional support for a so-called "implicit return". Some AML code - * assumes that the last value of the method is "implicitly" returned - * to the caller. Just save the last result as the return value. - * NOTE: this is optional because the ASL language does not actually - * support this behavior. - */ - (void)acpi_ds_do_implicit_return(walk_state->result_obj, walk_state, - TRUE); - - /* - * Now determine if the parent will use the result - * - * If there is no parent, or the parent is a scope_op, we are executing - * at the method level. An executing method typically has no parent, - * since each method is parsed separately. A method invoked externally - * via execute_control_method has a scope_op as the parent. - */ - if ((!op->common.parent) || - (op->common.parent->common.aml_opcode == AML_SCOPE_OP)) { - - /* No parent, the return value cannot possibly be used */ - - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "At Method level, result of [%s] not used\n", - acpi_ps_get_opcode_name(op->common. - aml_opcode))); - return_UINT8(FALSE); - } - - /* Get info on the parent. The root_op is AML_SCOPE */ - - parent_info = - acpi_ps_get_opcode_info(op->common.parent->common.aml_opcode); - if (parent_info->class == AML_CLASS_UNKNOWN) { - ACPI_ERROR((AE_INFO, "Unknown parent opcode Op=%p", op)); - return_UINT8(FALSE); - } - - /* - * Decide what to do with the result based on the parent. If - * the parent opcode will not use the result, delete the object. - * Otherwise leave it as is, it will be deleted when it is used - * as an operand later. - */ - switch (parent_info->class) { - case AML_CLASS_CONTROL: - - switch (op->common.parent->common.aml_opcode) { - case AML_RETURN_OP: - - /* Never delete the return value associated with a return opcode */ - - goto result_used; - - case AML_IF_OP: - case AML_WHILE_OP: - - /* - * If we are executing the predicate AND this is the predicate op, - * we will use the return value - */ - if ((walk_state->control_state->common.state == - ACPI_CONTROL_PREDICATE_EXECUTING) - && (walk_state->control_state->control. - predicate_op == op)) { - goto result_used; - } - break; - - default: - /* Ignore other control opcodes */ - break; - } - - /* The general control opcode returns no result */ - - goto result_not_used; - - case AML_CLASS_CREATE: - - /* - * These opcodes allow term_arg(s) as operands and therefore - * the operands can be method calls. The result is used. - */ - goto result_used; - - case AML_CLASS_NAMED_OBJECT: - - if ((op->common.parent->common.aml_opcode == AML_REGION_OP) || - (op->common.parent->common.aml_opcode == AML_DATA_REGION_OP) - || (op->common.parent->common.aml_opcode == AML_PACKAGE_OP) - || (op->common.parent->common.aml_opcode == - AML_VAR_PACKAGE_OP) - || (op->common.parent->common.aml_opcode == AML_BUFFER_OP) - || (op->common.parent->common.aml_opcode == - AML_INT_EVAL_SUBTREE_OP) - || (op->common.parent->common.aml_opcode == - AML_BANK_FIELD_OP)) { - /* - * These opcodes allow term_arg(s) as operands and therefore - * the operands can be method calls. The result is used. - */ - goto result_used; - } - - goto result_not_used; - - default: - - /* - * In all other cases. the parent will actually use the return - * object, so keep it. - */ - goto result_used; - } - - result_used: - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "Result of [%s] used by Parent [%s] Op=%p\n", - acpi_ps_get_opcode_name(op->common.aml_opcode), - acpi_ps_get_opcode_name(op->common.parent->common. - aml_opcode), op)); - - return_UINT8(TRUE); - - result_not_used: - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "Result of [%s] not used by Parent [%s] Op=%p\n", - acpi_ps_get_opcode_name(op->common.aml_opcode), - acpi_ps_get_opcode_name(op->common.parent->common. - aml_opcode), op)); - - return_UINT8(FALSE); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_delete_result_if_not_used - * - * PARAMETERS: Op - Current parse Op - * result_obj - Result of the operation - * walk_state - Current state - * - * RETURN: Status - * - * DESCRIPTION: Used after interpretation of an opcode. If there is an internal - * result descriptor, check if the parent opcode will actually use - * this result. If not, delete the result now so that it will - * not become orphaned. - * - ******************************************************************************/ - -void -acpi_ds_delete_result_if_not_used(union acpi_parse_object *op, - union acpi_operand_object *result_obj, - struct acpi_walk_state *walk_state) -{ - union acpi_operand_object *obj_desc; - acpi_status status; - - ACPI_FUNCTION_TRACE_PTR(ds_delete_result_if_not_used, result_obj); - - if (!op) { - ACPI_ERROR((AE_INFO, "Null Op")); - return_VOID; - } - - if (!result_obj) { - return_VOID; - } - - if (!acpi_ds_is_result_used(op, walk_state)) { - - /* Must pop the result stack (obj_desc should be equal to result_obj) */ - - status = acpi_ds_result_pop(&obj_desc, walk_state); - if (ACPI_SUCCESS(status)) { - acpi_ut_remove_reference(result_obj); - } - } - - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_resolve_operands - * - * PARAMETERS: walk_state - Current walk state with operands on stack - * - * RETURN: Status - * - * DESCRIPTION: Resolve all operands to their values. Used to prepare - * arguments to a control method invocation (a call from one - * method to another.) - * - ******************************************************************************/ - -acpi_status acpi_ds_resolve_operands(struct acpi_walk_state *walk_state) -{ - u32 i; - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE_PTR(ds_resolve_operands, walk_state); - - /* - * Attempt to resolve each of the valid operands - * Method arguments are passed by reference, not by value. This means - * that the actual objects are passed, not copies of the objects. - */ - for (i = 0; i < walk_state->num_operands; i++) { - status = - acpi_ex_resolve_to_value(&walk_state->operands[i], - walk_state); - if (ACPI_FAILURE(status)) { - break; - } - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_clear_operands - * - * PARAMETERS: walk_state - Current walk state with operands on stack - * - * RETURN: None - * - * DESCRIPTION: Clear all operands on the current walk state operand stack. - * - ******************************************************************************/ - -void acpi_ds_clear_operands(struct acpi_walk_state *walk_state) -{ - u32 i; - - ACPI_FUNCTION_TRACE_PTR(ds_clear_operands, walk_state); - - /* Remove a reference on each operand on the stack */ - - for (i = 0; i < walk_state->num_operands; i++) { - /* - * Remove a reference to all operands, including both - * "Arguments" and "Targets". - */ - acpi_ut_remove_reference(walk_state->operands[i]); - walk_state->operands[i] = NULL; - } - - walk_state->num_operands = 0; - return_VOID; -} -#endif - -/******************************************************************************* - * - * FUNCTION: acpi_ds_create_operand - * - * PARAMETERS: walk_state - Current walk state - * Arg - Parse object for the argument - * arg_index - Which argument (zero based) - * - * RETURN: Status - * - * DESCRIPTION: Translate a parse tree object that is an argument to an AML - * opcode to the equivalent interpreter object. This may include - * looking up a name or entering a new name into the internal - * namespace. - * - ******************************************************************************/ - -acpi_status -acpi_ds_create_operand(struct acpi_walk_state *walk_state, - union acpi_parse_object *arg, u32 arg_index) -{ - acpi_status status = AE_OK; - char *name_string; - u32 name_length; - union acpi_operand_object *obj_desc; - union acpi_parse_object *parent_op; - u16 opcode; - acpi_interpreter_mode interpreter_mode; - const struct acpi_opcode_info *op_info; - - ACPI_FUNCTION_TRACE_PTR(ds_create_operand, arg); - - /* A valid name must be looked up in the namespace */ - - if ((arg->common.aml_opcode == AML_INT_NAMEPATH_OP) && - (arg->common.value.string) && - !(arg->common.flags & ACPI_PARSEOP_IN_STACK)) { - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Getting a name: Arg=%p\n", - arg)); - - /* Get the entire name string from the AML stream */ - - status = - acpi_ex_get_name_string(ACPI_TYPE_ANY, - arg->common.value.buffer, - &name_string, &name_length); - - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* All prefixes have been handled, and the name is in name_string */ - - /* - * Special handling for buffer_field declarations. This is a deferred - * opcode that unfortunately defines the field name as the last - * parameter instead of the first. We get here when we are performing - * the deferred execution, so the actual name of the field is already - * in the namespace. We don't want to attempt to look it up again - * because we may be executing in a different scope than where the - * actual opcode exists. - */ - if ((walk_state->deferred_node) && - (walk_state->deferred_node->type == ACPI_TYPE_BUFFER_FIELD) - && (arg_index == - (u32) ((walk_state->opcode == - AML_CREATE_FIELD_OP) ? 3 : 2))) { - obj_desc = - ACPI_CAST_PTR(union acpi_operand_object, - walk_state->deferred_node); - status = AE_OK; - } else { /* All other opcodes */ - - /* - * Differentiate between a namespace "create" operation - * versus a "lookup" operation (IMODE_LOAD_PASS2 vs. - * IMODE_EXECUTE) in order to support the creation of - * namespace objects during the execution of control methods. - */ - parent_op = arg->common.parent; - op_info = - acpi_ps_get_opcode_info(parent_op->common. - aml_opcode); - if ((op_info->flags & AML_NSNODE) - && (parent_op->common.aml_opcode != - AML_INT_METHODCALL_OP) - && (parent_op->common.aml_opcode != AML_REGION_OP) - && (parent_op->common.aml_opcode != - AML_INT_NAMEPATH_OP)) { - - /* Enter name into namespace if not found */ - - interpreter_mode = ACPI_IMODE_LOAD_PASS2; - } else { - /* Return a failure if name not found */ - - interpreter_mode = ACPI_IMODE_EXECUTE; - } - - status = - acpi_ns_lookup(walk_state->scope_info, name_string, - ACPI_TYPE_ANY, interpreter_mode, - ACPI_NS_SEARCH_PARENT | - ACPI_NS_DONT_OPEN_SCOPE, walk_state, - ACPI_CAST_INDIRECT_PTR(struct - acpi_namespace_node, - &obj_desc)); - /* - * The only case where we pass through (ignore) a NOT_FOUND - * error is for the cond_ref_of opcode. - */ - if (status == AE_NOT_FOUND) { - if (parent_op->common.aml_opcode == - AML_COND_REF_OF_OP) { - /* - * For the Conditional Reference op, it's OK if - * the name is not found; We just need a way to - * indicate this to the interpreter, set the - * object to the root - */ - obj_desc = ACPI_CAST_PTR(union - acpi_operand_object, - acpi_gbl_root_node); - status = AE_OK; - } else { - /* - * We just plain didn't find it -- which is a - * very serious error at this point - */ - status = AE_AML_NAME_NOT_FOUND; - } - } - - if (ACPI_FAILURE(status)) { - ACPI_ERROR_NAMESPACE(name_string, status); - } - } - - /* Free the namestring created above */ - - ACPI_FREE(name_string); - - /* Check status from the lookup */ - - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Put the resulting object onto the current object stack */ - - status = acpi_ds_obj_stack_push(obj_desc, walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - ACPI_DEBUGGER_EXEC(acpi_db_display_argument_object - (obj_desc, walk_state)); - } else { - /* Check for null name case */ - - if ((arg->common.aml_opcode == AML_INT_NAMEPATH_OP) && - !(arg->common.flags & ACPI_PARSEOP_IN_STACK)) { - /* - * If the name is null, this means that this is an - * optional result parameter that was not specified - * in the original ASL. Create a Zero Constant for a - * placeholder. (Store to a constant is a Noop.) - */ - opcode = AML_ZERO_OP; /* Has no arguments! */ - - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "Null namepath: Arg=%p\n", arg)); - } else { - opcode = arg->common.aml_opcode; - } - - /* Get the object type of the argument */ - - op_info = acpi_ps_get_opcode_info(opcode); - if (op_info->object_type == ACPI_TYPE_INVALID) { - return_ACPI_STATUS(AE_NOT_IMPLEMENTED); - } - - if ((op_info->flags & AML_HAS_RETVAL) - || (arg->common.flags & ACPI_PARSEOP_IN_STACK)) { - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "Argument previously created, already stacked\n")); - - ACPI_DEBUGGER_EXEC(acpi_db_display_argument_object - (walk_state-> - operands[walk_state->num_operands - - 1], walk_state)); - - /* - * Use value that was already previously returned - * by the evaluation of this argument - */ - status = acpi_ds_result_pop(&obj_desc, walk_state); - if (ACPI_FAILURE(status)) { - /* - * Only error is underflow, and this indicates - * a missing or null operand! - */ - ACPI_EXCEPTION((AE_INFO, status, - "Missing or null operand")); - return_ACPI_STATUS(status); - } - } else { - /* Create an ACPI_INTERNAL_OBJECT for the argument */ - - obj_desc = - acpi_ut_create_internal_object(op_info-> - object_type); - if (!obj_desc) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Initialize the new object */ - - status = - acpi_ds_init_object_from_op(walk_state, arg, opcode, - &obj_desc); - if (ACPI_FAILURE(status)) { - acpi_ut_delete_object_desc(obj_desc); - return_ACPI_STATUS(status); - } - } - - /* Put the operand object on the object stack */ - - status = acpi_ds_obj_stack_push(obj_desc, walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - ACPI_DEBUGGER_EXEC(acpi_db_display_argument_object - (obj_desc, walk_state)); - } - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_create_operands - * - * PARAMETERS: walk_state - Current state - * first_arg - First argument of a parser argument tree - * - * RETURN: Status - * - * DESCRIPTION: Convert an operator's arguments from a parse tree format to - * namespace objects and place those argument object on the object - * stack in preparation for evaluation by the interpreter. - * - ******************************************************************************/ - -acpi_status -acpi_ds_create_operands(struct acpi_walk_state *walk_state, - union acpi_parse_object *first_arg) -{ - acpi_status status = AE_OK; - union acpi_parse_object *arg; - union acpi_parse_object *arguments[ACPI_OBJ_NUM_OPERANDS]; - u32 arg_count = 0; - u32 index = walk_state->num_operands; - u32 i; - - ACPI_FUNCTION_TRACE_PTR(ds_create_operands, first_arg); - - /* Get all arguments in the list */ - - arg = first_arg; - while (arg) { - if (index >= ACPI_OBJ_NUM_OPERANDS) { - return_ACPI_STATUS(AE_BAD_DATA); - } - - arguments[index] = arg; - walk_state->operands[index] = NULL; - - /* Move on to next argument, if any */ - - arg = arg->common.next; - arg_count++; - index++; - } - - index--; - - /* It is the appropriate order to get objects from the Result stack */ - - for (i = 0; i < arg_count; i++) { - arg = arguments[index]; - - /* Force the filling of the operand stack in inverse order */ - - walk_state->operand_index = (u8) index; - - status = acpi_ds_create_operand(walk_state, arg, index); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - index--; - - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "Arg #%d (%p) done, Arg1=%p\n", index, arg, - first_arg)); - } - - return_ACPI_STATUS(status); - - cleanup: - /* - * We must undo everything done above; meaning that we must - * pop everything off of the operand stack and delete those - * objects - */ - acpi_ds_obj_stack_pop_and_delete(arg_count, walk_state); - - ACPI_EXCEPTION((AE_INFO, status, "While creating Arg %d", index)); - return_ACPI_STATUS(status); -} - -/***************************************************************************** - * - * FUNCTION: acpi_ds_evaluate_name_path - * - * PARAMETERS: walk_state - Current state of the parse tree walk, - * the opcode of current operation should be - * AML_INT_NAMEPATH_OP - * - * RETURN: Status - * - * DESCRIPTION: Translate the -name_path- parse tree object to the equivalent - * interpreter object, convert it to value, if needed, duplicate - * it, if needed, and push it onto the current result stack. - * - ****************************************************************************/ - -acpi_status acpi_ds_evaluate_name_path(struct acpi_walk_state *walk_state) -{ - acpi_status status = AE_OK; - union acpi_parse_object *op = walk_state->op; - union acpi_operand_object **operand = &walk_state->operands[0]; - union acpi_operand_object *new_obj_desc; - u8 type; - - ACPI_FUNCTION_TRACE_PTR(ds_evaluate_name_path, walk_state); - - if (!op->common.parent) { - - /* This happens after certain exception processing */ - - goto exit; - } - - if ((op->common.parent->common.aml_opcode == AML_PACKAGE_OP) || - (op->common.parent->common.aml_opcode == AML_VAR_PACKAGE_OP) || - (op->common.parent->common.aml_opcode == AML_REF_OF_OP)) { - - /* TBD: Should we specify this feature as a bit of op_info->Flags of these opcodes? */ - - goto exit; - } - - status = acpi_ds_create_operand(walk_state, op, 0); - if (ACPI_FAILURE(status)) { - goto exit; - } - - if (op->common.flags & ACPI_PARSEOP_TARGET) { - new_obj_desc = *operand; - goto push_result; - } - - type = ACPI_GET_OBJECT_TYPE(*operand); - - status = acpi_ex_resolve_to_value(operand, walk_state); - if (ACPI_FAILURE(status)) { - goto exit; - } - - if (type == ACPI_TYPE_INTEGER) { - - /* It was incremented by acpi_ex_resolve_to_value */ - - acpi_ut_remove_reference(*operand); - - status = - acpi_ut_copy_iobject_to_iobject(*operand, &new_obj_desc, - walk_state); - if (ACPI_FAILURE(status)) { - goto exit; - } - } else { - /* - * The object either was anew created or is - * a Namespace node - don't decrement it. - */ - new_obj_desc = *operand; - } - - /* Cleanup for name-path operand */ - - status = acpi_ds_obj_stack_pop(1, walk_state); - if (ACPI_FAILURE(status)) { - walk_state->result_obj = new_obj_desc; - goto exit; - } - - push_result: - - walk_state->result_obj = new_obj_desc; - - status = acpi_ds_result_push(walk_state->result_obj, walk_state); - if (ACPI_SUCCESS(status)) { - - /* Force to take it from stack */ - - op->common.flags |= ACPI_PARSEOP_IN_STACK; - } - - exit: - - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/dispatcher/dswexec.c b/drivers/acpi/dispatcher/dswexec.c deleted file mode 100644 index 2482cbd37f25..000000000000 --- a/drivers/acpi/dispatcher/dswexec.c +++ /dev/null @@ -1,746 +0,0 @@ -/****************************************************************************** - * - * Module Name: dswexec - Dispatcher method execution callbacks; - * dispatch to interpreter. - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_DISPATCHER -ACPI_MODULE_NAME("dswexec") - -/* - * Dispatch table for opcode classes - */ -static ACPI_EXECUTE_OP acpi_gbl_op_type_dispatch[] = { - acpi_ex_opcode_0A_0T_1R, - acpi_ex_opcode_1A_0T_0R, - acpi_ex_opcode_1A_0T_1R, - acpi_ex_opcode_1A_1T_0R, - acpi_ex_opcode_1A_1T_1R, - acpi_ex_opcode_2A_0T_0R, - acpi_ex_opcode_2A_0T_1R, - acpi_ex_opcode_2A_1T_1R, - acpi_ex_opcode_2A_2T_1R, - acpi_ex_opcode_3A_0T_0R, - acpi_ex_opcode_3A_1T_1R, - acpi_ex_opcode_6A_0T_1R -}; - -/***************************************************************************** - * - * FUNCTION: acpi_ds_get_predicate_value - * - * PARAMETERS: walk_state - Current state of the parse tree walk - * result_obj - if non-zero, pop result from result stack - * - * RETURN: Status - * - * DESCRIPTION: Get the result of a predicate evaluation - * - ****************************************************************************/ - -acpi_status -acpi_ds_get_predicate_value(struct acpi_walk_state *walk_state, - union acpi_operand_object *result_obj) -{ - acpi_status status = AE_OK; - union acpi_operand_object *obj_desc; - union acpi_operand_object *local_obj_desc = NULL; - - ACPI_FUNCTION_TRACE_PTR(ds_get_predicate_value, walk_state); - - walk_state->control_state->common.state = 0; - - if (result_obj) { - status = acpi_ds_result_pop(&obj_desc, walk_state); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "Could not get result from predicate evaluation")); - - return_ACPI_STATUS(status); - } - } else { - status = acpi_ds_create_operand(walk_state, walk_state->op, 0); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - status = - acpi_ex_resolve_to_value(&walk_state->operands[0], - walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - obj_desc = walk_state->operands[0]; - } - - if (!obj_desc) { - ACPI_ERROR((AE_INFO, - "No predicate ObjDesc=%p State=%p", - obj_desc, walk_state)); - - return_ACPI_STATUS(AE_AML_NO_OPERAND); - } - - /* - * Result of predicate evaluation must be an Integer - * object. Implicitly convert the argument if necessary. - */ - status = acpi_ex_convert_to_integer(obj_desc, &local_obj_desc, 16); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - if (ACPI_GET_OBJECT_TYPE(local_obj_desc) != ACPI_TYPE_INTEGER) { - ACPI_ERROR((AE_INFO, - "Bad predicate (not an integer) ObjDesc=%p State=%p Type=%X", - obj_desc, walk_state, - ACPI_GET_OBJECT_TYPE(obj_desc))); - - status = AE_AML_OPERAND_TYPE; - goto cleanup; - } - - /* Truncate the predicate to 32-bits if necessary */ - - acpi_ex_truncate_for32bit_table(local_obj_desc); - - /* - * Save the result of the predicate evaluation on - * the control stack - */ - if (local_obj_desc->integer.value) { - walk_state->control_state->common.value = TRUE; - } else { - /* - * Predicate is FALSE, we will just toss the - * rest of the package - */ - walk_state->control_state->common.value = FALSE; - status = AE_CTRL_FALSE; - } - - /* Predicate can be used for an implicit return value */ - - (void)acpi_ds_do_implicit_return(local_obj_desc, walk_state, TRUE); - - cleanup: - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Completed a predicate eval=%X Op=%p\n", - walk_state->control_state->common.value, - walk_state->op)); - - /* Break to debugger to display result */ - - ACPI_DEBUGGER_EXEC(acpi_db_display_result_object - (local_obj_desc, walk_state)); - - /* - * Delete the predicate result object (we know that - * we don't need it anymore) - */ - if (local_obj_desc != obj_desc) { - acpi_ut_remove_reference(local_obj_desc); - } - acpi_ut_remove_reference(obj_desc); - - walk_state->control_state->common.state = ACPI_CONTROL_NORMAL; - return_ACPI_STATUS(status); -} - -/***************************************************************************** - * - * FUNCTION: acpi_ds_exec_begin_op - * - * PARAMETERS: walk_state - Current state of the parse tree walk - * out_op - Where to return op if a new one is created - * - * RETURN: Status - * - * DESCRIPTION: Descending callback used during the execution of control - * methods. This is where most operators and operands are - * dispatched to the interpreter. - * - ****************************************************************************/ - -acpi_status -acpi_ds_exec_begin_op(struct acpi_walk_state *walk_state, - union acpi_parse_object **out_op) -{ - union acpi_parse_object *op; - acpi_status status = AE_OK; - u32 opcode_class; - - ACPI_FUNCTION_TRACE_PTR(ds_exec_begin_op, walk_state); - - op = walk_state->op; - if (!op) { - status = acpi_ds_load2_begin_op(walk_state, out_op); - if (ACPI_FAILURE(status)) { - goto error_exit; - } - - op = *out_op; - walk_state->op = op; - walk_state->opcode = op->common.aml_opcode; - walk_state->op_info = - acpi_ps_get_opcode_info(op->common.aml_opcode); - - if (acpi_ns_opens_scope(walk_state->op_info->object_type)) { - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "(%s) Popping scope for Op %p\n", - acpi_ut_get_type_name(walk_state-> - op_info-> - object_type), - op)); - - status = acpi_ds_scope_stack_pop(walk_state); - if (ACPI_FAILURE(status)) { - goto error_exit; - } - } - } - - if (op == walk_state->origin) { - if (out_op) { - *out_op = op; - } - - return_ACPI_STATUS(AE_OK); - } - - /* - * If the previous opcode was a conditional, this opcode - * must be the beginning of the associated predicate. - * Save this knowledge in the current scope descriptor - */ - if ((walk_state->control_state) && - (walk_state->control_state->common.state == - ACPI_CONTROL_CONDITIONAL_EXECUTING)) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Exec predicate Op=%p State=%p\n", op, - walk_state)); - - walk_state->control_state->common.state = - ACPI_CONTROL_PREDICATE_EXECUTING; - - /* Save start of predicate */ - - walk_state->control_state->control.predicate_op = op; - } - - opcode_class = walk_state->op_info->class; - - /* We want to send namepaths to the load code */ - - if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) { - opcode_class = AML_CLASS_NAMED_OBJECT; - } - - /* - * Handle the opcode based upon the opcode type - */ - switch (opcode_class) { - case AML_CLASS_CONTROL: - - status = acpi_ds_exec_begin_control_op(walk_state, op); - break; - - case AML_CLASS_NAMED_OBJECT: - - if (walk_state->walk_type & ACPI_WALK_METHOD) { - /* - * Found a named object declaration during method execution; - * we must enter this object into the namespace. The created - * object is temporary and will be deleted upon completion of - * the execution of this method. - */ - status = acpi_ds_load2_begin_op(walk_state, NULL); - } - - break; - - case AML_CLASS_EXECUTE: - case AML_CLASS_CREATE: - - break; - - default: - break; - } - - /* Nothing to do here during method execution */ - - return_ACPI_STATUS(status); - - error_exit: - status = acpi_ds_method_error(status, walk_state); - return_ACPI_STATUS(status); -} - -/***************************************************************************** - * - * FUNCTION: acpi_ds_exec_end_op - * - * PARAMETERS: walk_state - Current state of the parse tree walk - * - * RETURN: Status - * - * DESCRIPTION: Ascending callback used during the execution of control - * methods. The only thing we really need to do here is to - * notice the beginning of IF, ELSE, and WHILE blocks. - * - ****************************************************************************/ - -acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state) -{ - union acpi_parse_object *op; - acpi_status status = AE_OK; - u32 op_type; - u32 op_class; - union acpi_parse_object *next_op; - union acpi_parse_object *first_arg; - - ACPI_FUNCTION_TRACE_PTR(ds_exec_end_op, walk_state); - - op = walk_state->op; - op_type = walk_state->op_info->type; - op_class = walk_state->op_info->class; - - if (op_class == AML_CLASS_UNKNOWN) { - ACPI_ERROR((AE_INFO, "Unknown opcode %X", - op->common.aml_opcode)); - return_ACPI_STATUS(AE_NOT_IMPLEMENTED); - } - - first_arg = op->common.value.arg; - - /* Init the walk state */ - - walk_state->num_operands = 0; - walk_state->operand_index = 0; - walk_state->return_desc = NULL; - walk_state->result_obj = NULL; - - /* Call debugger for single step support (DEBUG build only) */ - - ACPI_DEBUGGER_EXEC(status = - acpi_db_single_step(walk_state, op, op_class)); - ACPI_DEBUGGER_EXEC(if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status);} - ) ; - - /* Decode the Opcode Class */ - - switch (op_class) { - case AML_CLASS_ARGUMENT: /* Constants, literals, etc. */ - - if (walk_state->opcode == AML_INT_NAMEPATH_OP) { - status = acpi_ds_evaluate_name_path(walk_state); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - } - break; - - case AML_CLASS_EXECUTE: /* Most operators with arguments */ - - /* Build resolved operand stack */ - - status = acpi_ds_create_operands(walk_state, first_arg); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - /* - * All opcodes require operand resolution, with the only exceptions - * being the object_type and size_of operators. - */ - if (!(walk_state->op_info->flags & AML_NO_OPERAND_RESOLVE)) { - - /* Resolve all operands */ - - status = acpi_ex_resolve_operands(walk_state->opcode, - &(walk_state-> - operands - [walk_state-> - num_operands - 1]), - walk_state); - } - - if (ACPI_SUCCESS(status)) { - /* - * Dispatch the request to the appropriate interpreter handler - * routine. There is one routine per opcode "type" based upon the - * number of opcode arguments and return type. - */ - status = - acpi_gbl_op_type_dispatch[op_type] (walk_state); - } else { - /* - * Treat constructs of the form "Store(LocalX,LocalX)" as noops when the - * Local is uninitialized. - */ - if ((status == AE_AML_UNINITIALIZED_LOCAL) && - (walk_state->opcode == AML_STORE_OP) && - (walk_state->operands[0]->common.type == - ACPI_TYPE_LOCAL_REFERENCE) - && (walk_state->operands[1]->common.type == - ACPI_TYPE_LOCAL_REFERENCE) - && (walk_state->operands[0]->reference.class == - walk_state->operands[1]->reference.class) - && (walk_state->operands[0]->reference.value == - walk_state->operands[1]->reference.value)) { - status = AE_OK; - } else { - ACPI_EXCEPTION((AE_INFO, status, - "While resolving operands for [%s]", - acpi_ps_get_opcode_name - (walk_state->opcode))); - } - } - - /* Always delete the argument objects and clear the operand stack */ - - acpi_ds_clear_operands(walk_state); - - /* - * If a result object was returned from above, push it on the - * current result stack - */ - if (ACPI_SUCCESS(status) && walk_state->result_obj) { - status = - acpi_ds_result_push(walk_state->result_obj, - walk_state); - } - break; - - default: - - switch (op_type) { - case AML_TYPE_CONTROL: /* Type 1 opcode, IF/ELSE/WHILE/NOOP */ - - /* 1 Operand, 0 external_result, 0 internal_result */ - - status = acpi_ds_exec_end_control_op(walk_state, op); - - break; - - case AML_TYPE_METHOD_CALL: - - /* - * If the method is referenced from within a package - * declaration, it is not a invocation of the method, just - * a reference to it. - */ - if ((op->asl.parent) && - ((op->asl.parent->asl.aml_opcode == AML_PACKAGE_OP) - || (op->asl.parent->asl.aml_opcode == - AML_VAR_PACKAGE_OP))) { - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "Method Reference in a Package, Op=%p\n", - op)); - - op->common.node = - (struct acpi_namespace_node *)op->asl.value. - arg->asl.node; - acpi_ut_add_reference(op->asl.value.arg->asl. - node->object); - return_ACPI_STATUS(AE_OK); - } - - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "Method invocation, Op=%p\n", op)); - - /* - * (AML_METHODCALL) Op->Asl.Value.Arg->Asl.Node contains - * the method Node pointer - */ - /* next_op points to the op that holds the method name */ - - next_op = first_arg; - - /* next_op points to first argument op */ - - next_op = next_op->common.next; - - /* - * Get the method's arguments and put them on the operand stack - */ - status = acpi_ds_create_operands(walk_state, next_op); - if (ACPI_FAILURE(status)) { - break; - } - - /* - * Since the operands will be passed to another control method, - * we must resolve all local references here (Local variables, - * arguments to *this* method, etc.) - */ - status = acpi_ds_resolve_operands(walk_state); - if (ACPI_FAILURE(status)) { - - /* On error, clear all resolved operands */ - - acpi_ds_clear_operands(walk_state); - break; - } - - /* - * Tell the walk loop to preempt this running method and - * execute the new method - */ - status = AE_CTRL_TRANSFER; - - /* - * Return now; we don't want to disturb anything, - * especially the operand count! - */ - return_ACPI_STATUS(status); - - case AML_TYPE_CREATE_FIELD: - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Executing CreateField Buffer/Index Op=%p\n", - op)); - - status = acpi_ds_load2_end_op(walk_state); - if (ACPI_FAILURE(status)) { - break; - } - - status = - acpi_ds_eval_buffer_field_operands(walk_state, op); - break; - - case AML_TYPE_CREATE_OBJECT: - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Executing CreateObject (Buffer/Package) Op=%p\n", - op)); - - switch (op->common.parent->common.aml_opcode) { - case AML_NAME_OP: - - /* - * Put the Node on the object stack (Contains the ACPI Name - * of this object) - */ - walk_state->operands[0] = - (void *)op->common.parent->common.node; - walk_state->num_operands = 1; - - status = acpi_ds_create_node(walk_state, - op->common.parent-> - common.node, - op->common.parent); - if (ACPI_FAILURE(status)) { - break; - } - - /* Fall through */ - /*lint -fallthrough */ - - case AML_INT_EVAL_SUBTREE_OP: - - status = - acpi_ds_eval_data_object_operands - (walk_state, op, - acpi_ns_get_attached_object(op->common. - parent->common. - node)); - break; - - default: - - status = - acpi_ds_eval_data_object_operands - (walk_state, op, NULL); - break; - } - - /* - * If a result object was returned from above, push it on the - * current result stack - */ - if (walk_state->result_obj) { - status = - acpi_ds_result_push(walk_state->result_obj, - walk_state); - } - break; - - case AML_TYPE_NAMED_FIELD: - case AML_TYPE_NAMED_COMPLEX: - case AML_TYPE_NAMED_SIMPLE: - case AML_TYPE_NAMED_NO_OBJ: - - status = acpi_ds_load2_end_op(walk_state); - if (ACPI_FAILURE(status)) { - break; - } - - if (op->common.aml_opcode == AML_REGION_OP) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Executing OpRegion Address/Length Op=%p\n", - op)); - - status = - acpi_ds_eval_region_operands(walk_state, - op); - if (ACPI_FAILURE(status)) { - break; - } - } else if (op->common.aml_opcode == AML_DATA_REGION_OP) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Executing DataTableRegion Strings Op=%p\n", - op)); - - status = - acpi_ds_eval_table_region_operands - (walk_state, op); - if (ACPI_FAILURE(status)) { - break; - } - } else if (op->common.aml_opcode == AML_BANK_FIELD_OP) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Executing BankField Op=%p\n", - op)); - - status = - acpi_ds_eval_bank_field_operands(walk_state, - op); - if (ACPI_FAILURE(status)) { - break; - } - } - break; - - case AML_TYPE_UNDEFINED: - - ACPI_ERROR((AE_INFO, - "Undefined opcode type Op=%p", op)); - return_ACPI_STATUS(AE_NOT_IMPLEMENTED); - - case AML_TYPE_BOGUS: - - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "Internal opcode=%X type Op=%p\n", - walk_state->opcode, op)); - break; - - default: - - ACPI_ERROR((AE_INFO, - "Unimplemented opcode, class=%X type=%X Opcode=%X Op=%p", - op_class, op_type, op->common.aml_opcode, - op)); - - status = AE_NOT_IMPLEMENTED; - break; - } - } - - /* - * ACPI 2.0 support for 64-bit integers: Truncate numeric - * result value if we are executing from a 32-bit ACPI table - */ - acpi_ex_truncate_for32bit_table(walk_state->result_obj); - - /* - * Check if we just completed the evaluation of a - * conditional predicate - */ - if ((ACPI_SUCCESS(status)) && - (walk_state->control_state) && - (walk_state->control_state->common.state == - ACPI_CONTROL_PREDICATE_EXECUTING) && - (walk_state->control_state->control.predicate_op == op)) { - status = - acpi_ds_get_predicate_value(walk_state, - walk_state->result_obj); - walk_state->result_obj = NULL; - } - - cleanup: - - if (walk_state->result_obj) { - - /* Break to debugger to display result */ - - ACPI_DEBUGGER_EXEC(acpi_db_display_result_object - (walk_state->result_obj, walk_state)); - - /* - * Delete the result op if and only if: - * Parent will not use the result -- such as any - * non-nested type2 op in a method (parent will be method) - */ - acpi_ds_delete_result_if_not_used(op, walk_state->result_obj, - walk_state); - } -#ifdef _UNDER_DEVELOPMENT - - if (walk_state->parser_state.aml == walk_state->parser_state.aml_end) { - acpi_db_method_end(walk_state); - } -#endif - - /* Invoke exception handler on error */ - - if (ACPI_FAILURE(status)) { - status = acpi_ds_method_error(status, walk_state); - } - - /* Always clear the object stack */ - - walk_state->num_operands = 0; - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/dispatcher/dswload.c b/drivers/acpi/dispatcher/dswload.c deleted file mode 100644 index 2d71ceda3d56..000000000000 --- a/drivers/acpi/dispatcher/dswload.c +++ /dev/null @@ -1,1203 +0,0 @@ -/****************************************************************************** - * - * Module Name: dswload - Dispatcher namespace load callbacks - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -#ifdef ACPI_ASL_COMPILER -#include -#endif - -#define _COMPONENT ACPI_DISPATCHER -ACPI_MODULE_NAME("dswload") - -/******************************************************************************* - * - * FUNCTION: acpi_ds_init_callbacks - * - * PARAMETERS: walk_state - Current state of the parse tree walk - * pass_number - 1, 2, or 3 - * - * RETURN: Status - * - * DESCRIPTION: Init walk state callbacks - * - ******************************************************************************/ -acpi_status -acpi_ds_init_callbacks(struct acpi_walk_state *walk_state, u32 pass_number) -{ - - switch (pass_number) { - case 1: - walk_state->parse_flags = ACPI_PARSE_LOAD_PASS1 | - ACPI_PARSE_DELETE_TREE; - walk_state->descending_callback = acpi_ds_load1_begin_op; - walk_state->ascending_callback = acpi_ds_load1_end_op; - break; - - case 2: - walk_state->parse_flags = ACPI_PARSE_LOAD_PASS1 | - ACPI_PARSE_DELETE_TREE; - walk_state->descending_callback = acpi_ds_load2_begin_op; - walk_state->ascending_callback = acpi_ds_load2_end_op; - break; - - case 3: -#ifndef ACPI_NO_METHOD_EXECUTION - walk_state->parse_flags |= ACPI_PARSE_EXECUTE | - ACPI_PARSE_DELETE_TREE; - walk_state->descending_callback = acpi_ds_exec_begin_op; - walk_state->ascending_callback = acpi_ds_exec_end_op; -#endif - break; - - default: - return (AE_BAD_PARAMETER); - } - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_load1_begin_op - * - * PARAMETERS: walk_state - Current state of the parse tree walk - * out_op - Where to return op if a new one is created - * - * RETURN: Status - * - * DESCRIPTION: Descending callback used during the loading of ACPI tables. - * - ******************************************************************************/ - -acpi_status -acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state, - union acpi_parse_object ** out_op) -{ - union acpi_parse_object *op; - struct acpi_namespace_node *node; - acpi_status status; - acpi_object_type object_type; - char *path; - u32 flags; - - ACPI_FUNCTION_TRACE(ds_load1_begin_op); - - op = walk_state->op; - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op, - walk_state)); - - /* We are only interested in opcodes that have an associated name */ - - if (op) { - if (!(walk_state->op_info->flags & AML_NAMED)) { - *out_op = op; - return_ACPI_STATUS(AE_OK); - } - - /* Check if this object has already been installed in the namespace */ - - if (op->common.node) { - *out_op = op; - return_ACPI_STATUS(AE_OK); - } - } - - path = acpi_ps_get_next_namestring(&walk_state->parser_state); - - /* Map the raw opcode into an internal object type */ - - object_type = walk_state->op_info->object_type; - - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "State=%p Op=%p [%s]\n", walk_state, op, - acpi_ut_get_type_name(object_type))); - - switch (walk_state->opcode) { - case AML_SCOPE_OP: - - /* - * The target name of the Scope() operator must exist at this point so - * that we can actually open the scope to enter new names underneath it. - * Allow search-to-root for single namesegs. - */ - status = - acpi_ns_lookup(walk_state->scope_info, path, object_type, - ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, - walk_state, &(node)); -#ifdef ACPI_ASL_COMPILER - if (status == AE_NOT_FOUND) { - /* - * Table disassembly: - * Target of Scope() not found. Generate an External for it, and - * insert the name into the namespace. - */ - acpi_dm_add_to_external_list(path, ACPI_TYPE_DEVICE, 0); - status = - acpi_ns_lookup(walk_state->scope_info, path, - object_type, ACPI_IMODE_LOAD_PASS1, - ACPI_NS_SEARCH_PARENT, walk_state, - &node); - } -#endif - if (ACPI_FAILURE(status)) { - ACPI_ERROR_NAMESPACE(path, status); - return_ACPI_STATUS(status); - } - - /* - * Check to make sure that the target is - * one of the opcodes that actually opens a scope - */ - switch (node->type) { - case ACPI_TYPE_ANY: - case ACPI_TYPE_LOCAL_SCOPE: /* Scope */ - case ACPI_TYPE_DEVICE: - case ACPI_TYPE_POWER: - case ACPI_TYPE_PROCESSOR: - case ACPI_TYPE_THERMAL: - - /* These are acceptable types */ - break; - - case ACPI_TYPE_INTEGER: - case ACPI_TYPE_STRING: - case ACPI_TYPE_BUFFER: - - /* - * These types we will allow, but we will change the type. This - * enables some existing code of the form: - * - * Name (DEB, 0) - * Scope (DEB) { ... } - * - * Note: silently change the type here. On the second pass, we will report - * a warning - */ - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)\n", - path, - acpi_ut_get_type_name(node->type))); - - node->type = ACPI_TYPE_ANY; - walk_state->scope_info->common.value = ACPI_TYPE_ANY; - break; - - default: - - /* All other types are an error */ - - ACPI_ERROR((AE_INFO, - "Invalid type (%s) for target of Scope operator [%4.4s] (Cannot override)", - acpi_ut_get_type_name(node->type), path)); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - break; - - default: - /* - * For all other named opcodes, we will enter the name into - * the namespace. - * - * Setup the search flags. - * Since we are entering a name into the namespace, we do not want to - * enable the search-to-root upsearch. - * - * There are only two conditions where it is acceptable that the name - * already exists: - * 1) the Scope() operator can reopen a scoping object that was - * previously defined (Scope, Method, Device, etc.) - * 2) Whenever we are parsing a deferred opcode (op_region, Buffer, - * buffer_field, or Package), the name of the object is already - * in the namespace. - */ - if (walk_state->deferred_node) { - - /* This name is already in the namespace, get the node */ - - node = walk_state->deferred_node; - status = AE_OK; - break; - } - - /* - * If we are executing a method, do not create any namespace objects - * during the load phase, only during execution. - */ - if (walk_state->method_node) { - node = NULL; - status = AE_OK; - break; - } - - flags = ACPI_NS_NO_UPSEARCH; - if ((walk_state->opcode != AML_SCOPE_OP) && - (!(walk_state->parse_flags & ACPI_PARSE_DEFERRED_OP))) { - flags |= ACPI_NS_ERROR_IF_FOUND; - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "[%s] Cannot already exist\n", - acpi_ut_get_type_name(object_type))); - } else { - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "[%s] Both Find or Create allowed\n", - acpi_ut_get_type_name(object_type))); - } - - /* - * Enter the named type into the internal namespace. We enter the name - * as we go downward in the parse tree. Any necessary subobjects that - * involve arguments to the opcode must be created as we go back up the - * parse tree later. - */ - status = - acpi_ns_lookup(walk_state->scope_info, path, object_type, - ACPI_IMODE_LOAD_PASS1, flags, walk_state, - &node); - if (ACPI_FAILURE(status)) { - if (status == AE_ALREADY_EXISTS) { - - /* The name already exists in this scope */ - - if (node->flags & ANOBJ_IS_EXTERNAL) { - /* - * Allow one create on an object or segment that was - * previously declared External - */ - node->flags &= ~ANOBJ_IS_EXTERNAL; - node->type = (u8) object_type; - - /* Just retyped a node, probably will need to open a scope */ - - if (acpi_ns_opens_scope(object_type)) { - status = - acpi_ds_scope_stack_push - (node, object_type, - walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS - (status); - } - } - - status = AE_OK; - } - } - - if (ACPI_FAILURE(status)) { - ACPI_ERROR_NAMESPACE(path, status); - return_ACPI_STATUS(status); - } - } - break; - } - - /* Common exit */ - - if (!op) { - - /* Create a new op */ - - op = acpi_ps_alloc_op(walk_state->opcode); - if (!op) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - } - - /* Initialize the op */ - -#if (defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)) - op->named.path = ACPI_CAST_PTR(u8, path); -#endif - - if (node) { - /* - * Put the Node in the "op" object that the parser uses, so we - * can get it again quickly when this scope is closed - */ - op->common.node = node; - op->named.name = node->name.integer; - } - - acpi_ps_append_arg(acpi_ps_get_parent_scope(&walk_state->parser_state), - op); - *out_op = op; - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_load1_end_op - * - * PARAMETERS: walk_state - Current state of the parse tree walk - * - * RETURN: Status - * - * DESCRIPTION: Ascending callback used during the loading of the namespace, - * both control methods and everything else. - * - ******************************************************************************/ - -acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state) -{ - union acpi_parse_object *op; - acpi_object_type object_type; - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(ds_load1_end_op); - - op = walk_state->op; - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op, - walk_state)); - - /* We are only interested in opcodes that have an associated name */ - - if (!(walk_state->op_info->flags & (AML_NAMED | AML_FIELD))) { - return_ACPI_STATUS(AE_OK); - } - - /* Get the object type to determine if we should pop the scope */ - - object_type = walk_state->op_info->object_type; - -#ifndef ACPI_NO_METHOD_EXECUTION - if (walk_state->op_info->flags & AML_FIELD) { - /* - * If we are executing a method, do not create any namespace objects - * during the load phase, only during execution. - */ - if (!walk_state->method_node) { - if (walk_state->opcode == AML_FIELD_OP || - walk_state->opcode == AML_BANK_FIELD_OP || - walk_state->opcode == AML_INDEX_FIELD_OP) { - status = - acpi_ds_init_field_objects(op, walk_state); - } - } - return_ACPI_STATUS(status); - } - - /* - * If we are executing a method, do not create any namespace objects - * during the load phase, only during execution. - */ - if (!walk_state->method_node) { - if (op->common.aml_opcode == AML_REGION_OP) { - status = - acpi_ex_create_region(op->named.data, - op->named.length, - (acpi_adr_space_type) ((op-> - common. - value. - arg)-> - common. - value. - integer), - walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } else if (op->common.aml_opcode == AML_DATA_REGION_OP) { - status = - acpi_ex_create_region(op->named.data, - op->named.length, - REGION_DATA_TABLE, - walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - } -#endif - - if (op->common.aml_opcode == AML_NAME_OP) { - - /* For Name opcode, get the object type from the argument */ - - if (op->common.value.arg) { - object_type = (acpi_ps_get_opcode_info((op->common. - value.arg)-> - common. - aml_opcode))-> - object_type; - - /* Set node type if we have a namespace node */ - - if (op->common.node) { - op->common.node->type = (u8) object_type; - } - } - } - - /* - * If we are executing a method, do not create any namespace objects - * during the load phase, only during execution. - */ - if (!walk_state->method_node) { - if (op->common.aml_opcode == AML_METHOD_OP) { - /* - * method_op pkg_length name_string method_flags term_list - * - * Note: We must create the method node/object pair as soon as we - * see the method declaration. This allows later pass1 parsing - * of invocations of the method (need to know the number of - * arguments.) - */ - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "LOADING-Method: State=%p Op=%p NamedObj=%p\n", - walk_state, op, op->named.node)); - - if (!acpi_ns_get_attached_object(op->named.node)) { - walk_state->operands[0] = - ACPI_CAST_PTR(void, op->named.node); - walk_state->num_operands = 1; - - status = - acpi_ds_create_operands(walk_state, - op->common.value. - arg); - if (ACPI_SUCCESS(status)) { - status = - acpi_ex_create_method(op->named. - data, - op->named. - length, - walk_state); - } - - walk_state->operands[0] = NULL; - walk_state->num_operands = 0; - - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - } - } - - /* Pop the scope stack (only if loading a table) */ - - if (!walk_state->method_node && acpi_ns_opens_scope(object_type)) { - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "(%s): Popping scope for Op %p\n", - acpi_ut_get_type_name(object_type), op)); - - status = acpi_ds_scope_stack_pop(walk_state); - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_load2_begin_op - * - * PARAMETERS: walk_state - Current state of the parse tree walk - * out_op - Wher to return op if a new one is created - * - * RETURN: Status - * - * DESCRIPTION: Descending callback used during the loading of ACPI tables. - * - ******************************************************************************/ - -acpi_status -acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state, - union acpi_parse_object **out_op) -{ - union acpi_parse_object *op; - struct acpi_namespace_node *node; - acpi_status status; - acpi_object_type object_type; - char *buffer_ptr; - u32 flags; - - ACPI_FUNCTION_TRACE(ds_load2_begin_op); - - op = walk_state->op; - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op, - walk_state)); - - if (op) { - if ((walk_state->control_state) && - (walk_state->control_state->common.state == - ACPI_CONTROL_CONDITIONAL_EXECUTING)) { - - /* We are executing a while loop outside of a method */ - - status = acpi_ds_exec_begin_op(walk_state, out_op); - return_ACPI_STATUS(status); - } - - /* We only care about Namespace opcodes here */ - - if ((!(walk_state->op_info->flags & AML_NSOPCODE) && - (walk_state->opcode != AML_INT_NAMEPATH_OP)) || - (!(walk_state->op_info->flags & AML_NAMED))) { -#ifdef ACPI_ENABLE_MODULE_LEVEL_CODE - if ((walk_state->op_info->class == AML_CLASS_EXECUTE) || - (walk_state->op_info->class == AML_CLASS_CONTROL)) { - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "Begin/EXEC: %s (fl %8.8X)\n", - walk_state->op_info->name, - walk_state->op_info->flags)); - - /* Executing a type1 or type2 opcode outside of a method */ - - status = - acpi_ds_exec_begin_op(walk_state, out_op); - return_ACPI_STATUS(status); - } -#endif - return_ACPI_STATUS(AE_OK); - } - - /* Get the name we are going to enter or lookup in the namespace */ - - if (walk_state->opcode == AML_INT_NAMEPATH_OP) { - - /* For Namepath op, get the path string */ - - buffer_ptr = op->common.value.string; - if (!buffer_ptr) { - - /* No name, just exit */ - - return_ACPI_STATUS(AE_OK); - } - } else { - /* Get name from the op */ - - buffer_ptr = ACPI_CAST_PTR(char, &op->named.name); - } - } else { - /* Get the namestring from the raw AML */ - - buffer_ptr = - acpi_ps_get_next_namestring(&walk_state->parser_state); - } - - /* Map the opcode into an internal object type */ - - object_type = walk_state->op_info->object_type; - - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "State=%p Op=%p Type=%X\n", walk_state, op, - object_type)); - - switch (walk_state->opcode) { - case AML_FIELD_OP: - case AML_BANK_FIELD_OP: - case AML_INDEX_FIELD_OP: - - node = NULL; - status = AE_OK; - break; - - case AML_INT_NAMEPATH_OP: - /* - * The name_path is an object reference to an existing object. - * Don't enter the name into the namespace, but look it up - * for use later. - */ - status = - acpi_ns_lookup(walk_state->scope_info, buffer_ptr, - object_type, ACPI_IMODE_EXECUTE, - ACPI_NS_SEARCH_PARENT, walk_state, &(node)); - break; - - case AML_SCOPE_OP: - /* - * The Path is an object reference to an existing object. - * Don't enter the name into the namespace, but look it up - * for use later. - */ - status = - acpi_ns_lookup(walk_state->scope_info, buffer_ptr, - object_type, ACPI_IMODE_EXECUTE, - ACPI_NS_SEARCH_PARENT, walk_state, &(node)); - if (ACPI_FAILURE(status)) { -#ifdef ACPI_ASL_COMPILER - if (status == AE_NOT_FOUND) { - status = AE_OK; - } else { - ACPI_ERROR_NAMESPACE(buffer_ptr, status); - } -#else - ACPI_ERROR_NAMESPACE(buffer_ptr, status); -#endif - return_ACPI_STATUS(status); - } - - /* - * We must check to make sure that the target is - * one of the opcodes that actually opens a scope - */ - switch (node->type) { - case ACPI_TYPE_ANY: - case ACPI_TYPE_LOCAL_SCOPE: /* Scope */ - case ACPI_TYPE_DEVICE: - case ACPI_TYPE_POWER: - case ACPI_TYPE_PROCESSOR: - case ACPI_TYPE_THERMAL: - - /* These are acceptable types */ - break; - - case ACPI_TYPE_INTEGER: - case ACPI_TYPE_STRING: - case ACPI_TYPE_BUFFER: - - /* - * These types we will allow, but we will change the type. This - * enables some existing code of the form: - * - * Name (DEB, 0) - * Scope (DEB) { ... } - */ - ACPI_WARNING((AE_INFO, - "Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)", - buffer_ptr, - acpi_ut_get_type_name(node->type))); - - node->type = ACPI_TYPE_ANY; - walk_state->scope_info->common.value = ACPI_TYPE_ANY; - break; - - default: - - /* All other types are an error */ - - ACPI_ERROR((AE_INFO, - "Invalid type (%s) for target of Scope operator [%4.4s]", - acpi_ut_get_type_name(node->type), - buffer_ptr)); - - return (AE_AML_OPERAND_TYPE); - } - break; - - default: - - /* All other opcodes */ - - if (op && op->common.node) { - - /* This op/node was previously entered into the namespace */ - - node = op->common.node; - - if (acpi_ns_opens_scope(object_type)) { - status = - acpi_ds_scope_stack_push(node, object_type, - walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - - return_ACPI_STATUS(AE_OK); - } - - /* - * Enter the named type into the internal namespace. We enter the name - * as we go downward in the parse tree. Any necessary subobjects that - * involve arguments to the opcode must be created as we go back up the - * parse tree later. - * - * Note: Name may already exist if we are executing a deferred opcode. - */ - if (walk_state->deferred_node) { - - /* This name is already in the namespace, get the node */ - - node = walk_state->deferred_node; - status = AE_OK; - break; - } - - flags = ACPI_NS_NO_UPSEARCH; - if (walk_state->pass_number == ACPI_IMODE_EXECUTE) { - - /* Execution mode, node cannot already exist, node is temporary */ - - flags |= (ACPI_NS_ERROR_IF_FOUND | ACPI_NS_TEMPORARY); - } - - /* Add new entry or lookup existing entry */ - - status = - acpi_ns_lookup(walk_state->scope_info, buffer_ptr, - object_type, ACPI_IMODE_LOAD_PASS2, flags, - walk_state, &node); - - if (ACPI_SUCCESS(status) && (flags & ACPI_NS_TEMPORARY)) { - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "***New Node [%4.4s] %p is temporary\n", - acpi_ut_get_node_name(node), node)); - } - break; - } - - if (ACPI_FAILURE(status)) { - ACPI_ERROR_NAMESPACE(buffer_ptr, status); - return_ACPI_STATUS(status); - } - - if (!op) { - - /* Create a new op */ - - op = acpi_ps_alloc_op(walk_state->opcode); - if (!op) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Initialize the new op */ - - if (node) { - op->named.name = node->name.integer; - } - *out_op = op; - } - - /* - * Put the Node in the "op" object that the parser uses, so we - * can get it again quickly when this scope is closed - */ - op->common.node = node; - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_load2_end_op - * - * PARAMETERS: walk_state - Current state of the parse tree walk - * - * RETURN: Status - * - * DESCRIPTION: Ascending callback used during the loading of the namespace, - * both control methods and everything else. - * - ******************************************************************************/ - -acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state) -{ - union acpi_parse_object *op; - acpi_status status = AE_OK; - acpi_object_type object_type; - struct acpi_namespace_node *node; - union acpi_parse_object *arg; - struct acpi_namespace_node *new_node; -#ifndef ACPI_NO_METHOD_EXECUTION - u32 i; - u8 region_space; -#endif - - ACPI_FUNCTION_TRACE(ds_load2_end_op); - - op = walk_state->op; - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Opcode [%s] Op %p State %p\n", - walk_state->op_info->name, op, walk_state)); - - /* Check if opcode had an associated namespace object */ - - if (!(walk_state->op_info->flags & AML_NSOBJECT)) { -#ifndef ACPI_NO_METHOD_EXECUTION -#ifdef ACPI_ENABLE_MODULE_LEVEL_CODE - /* No namespace object. Executable opcode? */ - - if ((walk_state->op_info->class == AML_CLASS_EXECUTE) || - (walk_state->op_info->class == AML_CLASS_CONTROL)) { - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "End/EXEC: %s (fl %8.8X)\n", - walk_state->op_info->name, - walk_state->op_info->flags)); - - /* Executing a type1 or type2 opcode outside of a method */ - - status = acpi_ds_exec_end_op(walk_state); - return_ACPI_STATUS(status); - } -#endif -#endif - return_ACPI_STATUS(AE_OK); - } - - if (op->common.aml_opcode == AML_SCOPE_OP) { - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "Ending scope Op=%p State=%p\n", op, - walk_state)); - } - - object_type = walk_state->op_info->object_type; - - /* - * Get the Node/name from the earlier lookup - * (It was saved in the *op structure) - */ - node = op->common.node; - - /* - * Put the Node on the object stack (Contains the ACPI Name of - * this object) - */ - walk_state->operands[0] = (void *)node; - walk_state->num_operands = 1; - - /* Pop the scope stack */ - - if (acpi_ns_opens_scope(object_type) && - (op->common.aml_opcode != AML_INT_METHODCALL_OP)) { - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "(%s) Popping scope for Op %p\n", - acpi_ut_get_type_name(object_type), op)); - - status = acpi_ds_scope_stack_pop(walk_state); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - } - - /* - * Named operations are as follows: - * - * AML_ALIAS - * AML_BANKFIELD - * AML_CREATEBITFIELD - * AML_CREATEBYTEFIELD - * AML_CREATEDWORDFIELD - * AML_CREATEFIELD - * AML_CREATEQWORDFIELD - * AML_CREATEWORDFIELD - * AML_DATA_REGION - * AML_DEVICE - * AML_EVENT - * AML_FIELD - * AML_INDEXFIELD - * AML_METHOD - * AML_METHODCALL - * AML_MUTEX - * AML_NAME - * AML_NAMEDFIELD - * AML_OPREGION - * AML_POWERRES - * AML_PROCESSOR - * AML_SCOPE - * AML_THERMALZONE - */ - - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "Create-Load [%s] State=%p Op=%p NamedObj=%p\n", - acpi_ps_get_opcode_name(op->common.aml_opcode), - walk_state, op, node)); - - /* Decode the opcode */ - - arg = op->common.value.arg; - - switch (walk_state->op_info->type) { -#ifndef ACPI_NO_METHOD_EXECUTION - - case AML_TYPE_CREATE_FIELD: - /* - * Create the field object, but the field buffer and index must - * be evaluated later during the execution phase - */ - status = acpi_ds_create_buffer_field(op, walk_state); - break; - - case AML_TYPE_NAMED_FIELD: - /* - * If we are executing a method, initialize the field - */ - if (walk_state->method_node) { - status = acpi_ds_init_field_objects(op, walk_state); - } - - switch (op->common.aml_opcode) { - case AML_INDEX_FIELD_OP: - - status = - acpi_ds_create_index_field(op, - (acpi_handle) arg-> - common.node, walk_state); - break; - - case AML_BANK_FIELD_OP: - - status = - acpi_ds_create_bank_field(op, arg->common.node, - walk_state); - break; - - case AML_FIELD_OP: - - status = - acpi_ds_create_field(op, arg->common.node, - walk_state); - break; - - default: - /* All NAMED_FIELD opcodes must be handled above */ - break; - } - break; - - case AML_TYPE_NAMED_SIMPLE: - - status = acpi_ds_create_operands(walk_state, arg); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - switch (op->common.aml_opcode) { - case AML_PROCESSOR_OP: - - status = acpi_ex_create_processor(walk_state); - break; - - case AML_POWER_RES_OP: - - status = acpi_ex_create_power_resource(walk_state); - break; - - case AML_MUTEX_OP: - - status = acpi_ex_create_mutex(walk_state); - break; - - case AML_EVENT_OP: - - status = acpi_ex_create_event(walk_state); - break; - - case AML_ALIAS_OP: - - status = acpi_ex_create_alias(walk_state); - break; - - default: - /* Unknown opcode */ - - status = AE_OK; - goto cleanup; - } - - /* Delete operands */ - - for (i = 1; i < walk_state->num_operands; i++) { - acpi_ut_remove_reference(walk_state->operands[i]); - walk_state->operands[i] = NULL; - } - - break; -#endif /* ACPI_NO_METHOD_EXECUTION */ - - case AML_TYPE_NAMED_COMPLEX: - - switch (op->common.aml_opcode) { -#ifndef ACPI_NO_METHOD_EXECUTION - case AML_REGION_OP: - case AML_DATA_REGION_OP: - - if (op->common.aml_opcode == AML_REGION_OP) { - region_space = (acpi_adr_space_type) - ((op->common.value.arg)->common.value. - integer); - } else { - region_space = REGION_DATA_TABLE; - } - - /* - * If we are executing a method, initialize the region - */ - if (walk_state->method_node) { - status = - acpi_ex_create_region(op->named.data, - op->named.length, - region_space, - walk_state); - if (ACPI_FAILURE(status)) { - return (status); - } - } - - /* - * The op_region is not fully parsed at this time. Only valid - * argument is the space_id. (We must save the address of the - * AML of the address and length operands) - */ - - /* - * If we have a valid region, initialize it - * Namespace is NOT locked at this point. - */ - status = - acpi_ev_initialize_region - (acpi_ns_get_attached_object(node), FALSE); - if (ACPI_FAILURE(status)) { - /* - * If AE_NOT_EXIST is returned, it is not fatal - * because many regions get created before a handler - * is installed for said region. - */ - if (AE_NOT_EXIST == status) { - status = AE_OK; - } - } - break; - - case AML_NAME_OP: - - status = acpi_ds_create_node(walk_state, node, op); - break; - - case AML_METHOD_OP: - /* - * method_op pkg_length name_string method_flags term_list - * - * Note: We must create the method node/object pair as soon as we - * see the method declaration. This allows later pass1 parsing - * of invocations of the method (need to know the number of - * arguments.) - */ - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "LOADING-Method: State=%p Op=%p NamedObj=%p\n", - walk_state, op, op->named.node)); - - if (!acpi_ns_get_attached_object(op->named.node)) { - walk_state->operands[0] = - ACPI_CAST_PTR(void, op->named.node); - walk_state->num_operands = 1; - - status = - acpi_ds_create_operands(walk_state, - op->common.value. - arg); - if (ACPI_SUCCESS(status)) { - status = - acpi_ex_create_method(op->named. - data, - op->named. - length, - walk_state); - } - walk_state->operands[0] = NULL; - walk_state->num_operands = 0; - - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - break; - -#endif /* ACPI_NO_METHOD_EXECUTION */ - - default: - /* All NAMED_COMPLEX opcodes must be handled above */ - break; - } - break; - - case AML_CLASS_INTERNAL: - - /* case AML_INT_NAMEPATH_OP: */ - break; - - case AML_CLASS_METHOD_CALL: - - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "RESOLVING-MethodCall: State=%p Op=%p NamedObj=%p\n", - walk_state, op, node)); - - /* - * Lookup the method name and save the Node - */ - status = - acpi_ns_lookup(walk_state->scope_info, - arg->common.value.string, ACPI_TYPE_ANY, - ACPI_IMODE_LOAD_PASS2, - ACPI_NS_SEARCH_PARENT | - ACPI_NS_DONT_OPEN_SCOPE, walk_state, - &(new_node)); - if (ACPI_SUCCESS(status)) { - /* - * Make sure that what we found is indeed a method - * We didn't search for a method on purpose, to see if the name - * would resolve - */ - if (new_node->type != ACPI_TYPE_METHOD) { - status = AE_AML_OPERAND_TYPE; - } - - /* We could put the returned object (Node) on the object stack for - * later, but for now, we will put it in the "op" object that the - * parser uses, so we can get it again at the end of this scope - */ - op->common.node = new_node; - } else { - ACPI_ERROR_NAMESPACE(arg->common.value.string, status); - } - break; - - default: - break; - } - - cleanup: - - /* Remove the Node pushed at the very beginning */ - - walk_state->operands[0] = NULL; - walk_state->num_operands = 0; - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/dispatcher/dswscope.c b/drivers/acpi/dispatcher/dswscope.c deleted file mode 100644 index 8030541a49f7..000000000000 --- a/drivers/acpi/dispatcher/dswscope.c +++ /dev/null @@ -1,214 +0,0 @@ -/****************************************************************************** - * - * Module Name: dswscope - Scope stack manipulation - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_DISPATCHER -ACPI_MODULE_NAME("dswscope") - -/**************************************************************************** - * - * FUNCTION: acpi_ds_scope_stack_clear - * - * PARAMETERS: walk_state - Current state - * - * RETURN: None - * - * DESCRIPTION: Pop (and free) everything on the scope stack except the - * root scope object (which remains at the stack top.) - * - ***************************************************************************/ -void acpi_ds_scope_stack_clear(struct acpi_walk_state *walk_state) -{ - union acpi_generic_state *scope_info; - - ACPI_FUNCTION_NAME(ds_scope_stack_clear); - - while (walk_state->scope_info) { - - /* Pop a scope off the stack */ - - scope_info = walk_state->scope_info; - walk_state->scope_info = scope_info->scope.next; - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Popped object type (%s)\n", - acpi_ut_get_type_name(scope_info->common. - value))); - acpi_ut_delete_generic_state(scope_info); - } -} - -/**************************************************************************** - * - * FUNCTION: acpi_ds_scope_stack_push - * - * PARAMETERS: Node - Name to be made current - * Type - Type of frame being pushed - * walk_state - Current state - * - * RETURN: Status - * - * DESCRIPTION: Push the current scope on the scope stack, and make the - * passed Node current. - * - ***************************************************************************/ - -acpi_status -acpi_ds_scope_stack_push(struct acpi_namespace_node *node, - acpi_object_type type, - struct acpi_walk_state *walk_state) -{ - union acpi_generic_state *scope_info; - union acpi_generic_state *old_scope_info; - - ACPI_FUNCTION_TRACE(ds_scope_stack_push); - - if (!node) { - - /* Invalid scope */ - - ACPI_ERROR((AE_INFO, "Null scope parameter")); - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Make sure object type is valid */ - - if (!acpi_ut_valid_object_type(type)) { - ACPI_WARNING((AE_INFO, "Invalid object type: 0x%X", type)); - } - - /* Allocate a new scope object */ - - scope_info = acpi_ut_create_generic_state(); - if (!scope_info) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Init new scope object */ - - scope_info->common.descriptor_type = ACPI_DESC_TYPE_STATE_WSCOPE; - scope_info->scope.node = node; - scope_info->common.value = (u16) type; - - walk_state->scope_depth++; - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "[%.2d] Pushed scope ", - (u32) walk_state->scope_depth)); - - old_scope_info = walk_state->scope_info; - if (old_scope_info) { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, - "[%4.4s] (%s)", - acpi_ut_get_node_name(old_scope_info-> - scope.node), - acpi_ut_get_type_name(old_scope_info-> - common.value))); - } else { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, "[\\___] (%s)", "ROOT")); - } - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, - ", New scope -> [%4.4s] (%s)\n", - acpi_ut_get_node_name(scope_info->scope.node), - acpi_ut_get_type_name(scope_info->common.value))); - - /* Push new scope object onto stack */ - - acpi_ut_push_generic_state(&walk_state->scope_info, scope_info); - return_ACPI_STATUS(AE_OK); -} - -/**************************************************************************** - * - * FUNCTION: acpi_ds_scope_stack_pop - * - * PARAMETERS: walk_state - Current state - * - * RETURN: Status - * - * DESCRIPTION: Pop the scope stack once. - * - ***************************************************************************/ - -acpi_status acpi_ds_scope_stack_pop(struct acpi_walk_state *walk_state) -{ - union acpi_generic_state *scope_info; - union acpi_generic_state *new_scope_info; - - ACPI_FUNCTION_TRACE(ds_scope_stack_pop); - - /* - * Pop scope info object off the stack. - */ - scope_info = acpi_ut_pop_generic_state(&walk_state->scope_info); - if (!scope_info) { - return_ACPI_STATUS(AE_STACK_UNDERFLOW); - } - - walk_state->scope_depth--; - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "[%.2d] Popped scope [%4.4s] (%s), New scope -> ", - (u32) walk_state->scope_depth, - acpi_ut_get_node_name(scope_info->scope.node), - acpi_ut_get_type_name(scope_info->common.value))); - - new_scope_info = walk_state->scope_info; - if (new_scope_info) { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, - "[%4.4s] (%s)\n", - acpi_ut_get_node_name(new_scope_info-> - scope.node), - acpi_ut_get_type_name(new_scope_info-> - common.value))); - } else { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, "[\\___] (ROOT)\n")); - } - - acpi_ut_delete_generic_state(scope_info); - return_ACPI_STATUS(AE_OK); -} diff --git a/drivers/acpi/dispatcher/dswstate.c b/drivers/acpi/dispatcher/dswstate.c deleted file mode 100644 index a7543c43c151..000000000000 --- a/drivers/acpi/dispatcher/dswstate.c +++ /dev/null @@ -1,753 +0,0 @@ -/****************************************************************************** - * - * Module Name: dswstate - Dispatcher parse tree walk management routines - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_DISPATCHER -ACPI_MODULE_NAME("dswstate") - - /* Local prototypes */ -static acpi_status acpi_ds_result_stack_push(struct acpi_walk_state *ws); -static acpi_status acpi_ds_result_stack_pop(struct acpi_walk_state *ws); - -/******************************************************************************* - * - * FUNCTION: acpi_ds_result_pop - * - * PARAMETERS: Object - Where to return the popped object - * walk_state - Current Walk state - * - * RETURN: Status - * - * DESCRIPTION: Pop an object off the top of this walk's result stack - * - ******************************************************************************/ - -acpi_status -acpi_ds_result_pop(union acpi_operand_object **object, - struct acpi_walk_state *walk_state) -{ - u32 index; - union acpi_generic_state *state; - acpi_status status; - - ACPI_FUNCTION_NAME(ds_result_pop); - - state = walk_state->results; - - /* Incorrect state of result stack */ - - if (state && !walk_state->result_count) { - ACPI_ERROR((AE_INFO, "No results on result stack")); - return (AE_AML_INTERNAL); - } - - if (!state && walk_state->result_count) { - ACPI_ERROR((AE_INFO, "No result state for result stack")); - return (AE_AML_INTERNAL); - } - - /* Empty result stack */ - - if (!state) { - ACPI_ERROR((AE_INFO, "Result stack is empty! State=%p", - walk_state)); - return (AE_AML_NO_RETURN_VALUE); - } - - /* Return object of the top element and clean that top element result stack */ - - walk_state->result_count--; - index = walk_state->result_count % ACPI_RESULTS_FRAME_OBJ_NUM; - - *object = state->results.obj_desc[index]; - if (!*object) { - ACPI_ERROR((AE_INFO, - "No result objects on result stack, State=%p", - walk_state)); - return (AE_AML_NO_RETURN_VALUE); - } - - state->results.obj_desc[index] = NULL; - if (index == 0) { - status = acpi_ds_result_stack_pop(walk_state); - if (ACPI_FAILURE(status)) { - return (status); - } - } - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Obj=%p [%s] Index=%X State=%p Num=%X\n", *object, - acpi_ut_get_object_type_name(*object), - index, walk_state, walk_state->result_count)); - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_result_push - * - * PARAMETERS: Object - Where to return the popped object - * walk_state - Current Walk state - * - * RETURN: Status - * - * DESCRIPTION: Push an object onto the current result stack - * - ******************************************************************************/ - -acpi_status -acpi_ds_result_push(union acpi_operand_object * object, - struct acpi_walk_state * walk_state) -{ - union acpi_generic_state *state; - acpi_status status; - u32 index; - - ACPI_FUNCTION_NAME(ds_result_push); - - if (walk_state->result_count > walk_state->result_size) { - ACPI_ERROR((AE_INFO, "Result stack is full")); - return (AE_AML_INTERNAL); - } else if (walk_state->result_count == walk_state->result_size) { - - /* Extend the result stack */ - - status = acpi_ds_result_stack_push(walk_state); - if (ACPI_FAILURE(status)) { - ACPI_ERROR((AE_INFO, - "Failed to extend the result stack")); - return (status); - } - } - - if (!(walk_state->result_count < walk_state->result_size)) { - ACPI_ERROR((AE_INFO, "No free elements in result stack")); - return (AE_AML_INTERNAL); - } - - state = walk_state->results; - if (!state) { - ACPI_ERROR((AE_INFO, "No result stack frame during push")); - return (AE_AML_INTERNAL); - } - - if (!object) { - ACPI_ERROR((AE_INFO, - "Null Object! Obj=%p State=%p Num=%X", - object, walk_state, walk_state->result_count)); - return (AE_BAD_PARAMETER); - } - - /* Assign the address of object to the top free element of result stack */ - - index = walk_state->result_count % ACPI_RESULTS_FRAME_OBJ_NUM; - state->results.obj_desc[index] = object; - walk_state->result_count++; - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Obj=%p [%s] State=%p Num=%X Cur=%X\n", - object, - acpi_ut_get_object_type_name((union - acpi_operand_object *) - object), walk_state, - walk_state->result_count, - walk_state->current_result)); - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_result_stack_push - * - * PARAMETERS: walk_state - Current Walk state - * - * RETURN: Status - * - * DESCRIPTION: Push an object onto the walk_state result stack - * - ******************************************************************************/ - -static acpi_status acpi_ds_result_stack_push(struct acpi_walk_state *walk_state) -{ - union acpi_generic_state *state; - - ACPI_FUNCTION_NAME(ds_result_stack_push); - - /* Check for stack overflow */ - - if (((u32) walk_state->result_size + ACPI_RESULTS_FRAME_OBJ_NUM) > - ACPI_RESULTS_OBJ_NUM_MAX) { - ACPI_ERROR((AE_INFO, "Result stack overflow: State=%p Num=%X", - walk_state, walk_state->result_size)); - return (AE_STACK_OVERFLOW); - } - - state = acpi_ut_create_generic_state(); - if (!state) { - return (AE_NO_MEMORY); - } - - state->common.descriptor_type = ACPI_DESC_TYPE_STATE_RESULT; - acpi_ut_push_generic_state(&walk_state->results, state); - - /* Increase the length of the result stack by the length of frame */ - - walk_state->result_size += ACPI_RESULTS_FRAME_OBJ_NUM; - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Results=%p State=%p\n", - state, walk_state)); - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_result_stack_pop - * - * PARAMETERS: walk_state - Current Walk state - * - * RETURN: Status - * - * DESCRIPTION: Pop an object off of the walk_state result stack - * - ******************************************************************************/ - -static acpi_status acpi_ds_result_stack_pop(struct acpi_walk_state *walk_state) -{ - union acpi_generic_state *state; - - ACPI_FUNCTION_NAME(ds_result_stack_pop); - - /* Check for stack underflow */ - - if (walk_state->results == NULL) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Result stack underflow - State=%p\n", - walk_state)); - return (AE_AML_NO_OPERAND); - } - - if (walk_state->result_size < ACPI_RESULTS_FRAME_OBJ_NUM) { - ACPI_ERROR((AE_INFO, "Insufficient result stack size")); - return (AE_AML_INTERNAL); - } - - state = acpi_ut_pop_generic_state(&walk_state->results); - acpi_ut_delete_generic_state(state); - - /* Decrease the length of result stack by the length of frame */ - - walk_state->result_size -= ACPI_RESULTS_FRAME_OBJ_NUM; - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Result=%p RemainingResults=%X State=%p\n", - state, walk_state->result_count, walk_state)); - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_obj_stack_push - * - * PARAMETERS: Object - Object to push - * walk_state - Current Walk state - * - * RETURN: Status - * - * DESCRIPTION: Push an object onto this walk's object/operand stack - * - ******************************************************************************/ - -acpi_status -acpi_ds_obj_stack_push(void *object, struct acpi_walk_state * walk_state) -{ - ACPI_FUNCTION_NAME(ds_obj_stack_push); - - /* Check for stack overflow */ - - if (walk_state->num_operands >= ACPI_OBJ_NUM_OPERANDS) { - ACPI_ERROR((AE_INFO, - "Object stack overflow! Obj=%p State=%p #Ops=%X", - object, walk_state, walk_state->num_operands)); - return (AE_STACK_OVERFLOW); - } - - /* Put the object onto the stack */ - - walk_state->operands[walk_state->operand_index] = object; - walk_state->num_operands++; - - /* For the usual order of filling the operand stack */ - - walk_state->operand_index++; - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Obj=%p [%s] State=%p #Ops=%X\n", - object, - acpi_ut_get_object_type_name((union - acpi_operand_object *) - object), walk_state, - walk_state->num_operands)); - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_obj_stack_pop - * - * PARAMETERS: pop_count - Number of objects/entries to pop - * walk_state - Current Walk state - * - * RETURN: Status - * - * DESCRIPTION: Pop this walk's object stack. Objects on the stack are NOT - * deleted by this routine. - * - ******************************************************************************/ - -acpi_status -acpi_ds_obj_stack_pop(u32 pop_count, struct acpi_walk_state * walk_state) -{ - u32 i; - - ACPI_FUNCTION_NAME(ds_obj_stack_pop); - - for (i = 0; i < pop_count; i++) { - - /* Check for stack underflow */ - - if (walk_state->num_operands == 0) { - ACPI_ERROR((AE_INFO, - "Object stack underflow! Count=%X State=%p #Ops=%X", - pop_count, walk_state, - walk_state->num_operands)); - return (AE_STACK_UNDERFLOW); - } - - /* Just set the stack entry to null */ - - walk_state->num_operands--; - walk_state->operands[walk_state->num_operands] = NULL; - } - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Count=%X State=%p #Ops=%X\n", - pop_count, walk_state, walk_state->num_operands)); - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_obj_stack_pop_and_delete - * - * PARAMETERS: pop_count - Number of objects/entries to pop - * walk_state - Current Walk state - * - * RETURN: Status - * - * DESCRIPTION: Pop this walk's object stack and delete each object that is - * popped off. - * - ******************************************************************************/ - -void -acpi_ds_obj_stack_pop_and_delete(u32 pop_count, - struct acpi_walk_state *walk_state) -{ - s32 i; - union acpi_operand_object *obj_desc; - - ACPI_FUNCTION_NAME(ds_obj_stack_pop_and_delete); - - if (pop_count == 0) { - return; - } - - for (i = (s32) pop_count - 1; i >= 0; i--) { - if (walk_state->num_operands == 0) { - return; - } - - /* Pop the stack and delete an object if present in this stack entry */ - - walk_state->num_operands--; - obj_desc = walk_state->operands[i]; - if (obj_desc) { - acpi_ut_remove_reference(walk_state->operands[i]); - walk_state->operands[i] = NULL; - } - } - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Count=%X State=%p #Ops=%X\n", - pop_count, walk_state, walk_state->num_operands)); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_get_current_walk_state - * - * PARAMETERS: Thread - Get current active state for this Thread - * - * RETURN: Pointer to the current walk state - * - * DESCRIPTION: Get the walk state that is at the head of the list (the "current" - * walk state.) - * - ******************************************************************************/ - -struct acpi_walk_state *acpi_ds_get_current_walk_state(struct acpi_thread_state - *thread) -{ - ACPI_FUNCTION_NAME(ds_get_current_walk_state); - - if (!thread) { - return (NULL); - } - - ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "Current WalkState %p\n", - thread->walk_state_list)); - - return (thread->walk_state_list); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_push_walk_state - * - * PARAMETERS: walk_state - State to push - * Thread - Thread state object - * - * RETURN: None - * - * DESCRIPTION: Place the Thread state at the head of the state list - * - ******************************************************************************/ - -void -acpi_ds_push_walk_state(struct acpi_walk_state *walk_state, - struct acpi_thread_state *thread) -{ - ACPI_FUNCTION_TRACE(ds_push_walk_state); - - walk_state->next = thread->walk_state_list; - thread->walk_state_list = walk_state; - - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_pop_walk_state - * - * PARAMETERS: Thread - Current thread state - * - * RETURN: A walk_state object popped from the thread's stack - * - * DESCRIPTION: Remove and return the walkstate object that is at the head of - * the walk stack for the given walk list. NULL indicates that - * the list is empty. - * - ******************************************************************************/ - -struct acpi_walk_state *acpi_ds_pop_walk_state(struct acpi_thread_state *thread) -{ - struct acpi_walk_state *walk_state; - - ACPI_FUNCTION_TRACE(ds_pop_walk_state); - - walk_state = thread->walk_state_list; - - if (walk_state) { - - /* Next walk state becomes the current walk state */ - - thread->walk_state_list = walk_state->next; - - /* - * Don't clear the NEXT field, this serves as an indicator - * that there is a parent WALK STATE - * Do Not: walk_state->Next = NULL; - */ - } - - return_PTR(walk_state); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_create_walk_state - * - * PARAMETERS: owner_id - ID for object creation - * Origin - Starting point for this walk - * method_desc - Method object - * Thread - Current thread state - * - * RETURN: Pointer to the new walk state. - * - * DESCRIPTION: Allocate and initialize a new walk state. The current walk - * state is set to this new state. - * - ******************************************************************************/ - -struct acpi_walk_state *acpi_ds_create_walk_state(acpi_owner_id owner_id, union acpi_parse_object - *origin, union acpi_operand_object - *method_desc, struct acpi_thread_state - *thread) -{ - struct acpi_walk_state *walk_state; - - ACPI_FUNCTION_TRACE(ds_create_walk_state); - - walk_state = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_walk_state)); - if (!walk_state) { - return_PTR(NULL); - } - - walk_state->descriptor_type = ACPI_DESC_TYPE_WALK; - walk_state->method_desc = method_desc; - walk_state->owner_id = owner_id; - walk_state->origin = origin; - walk_state->thread = thread; - - walk_state->parser_state.start_op = origin; - - /* Init the method args/local */ - -#if (!defined (ACPI_NO_METHOD_EXECUTION) && !defined (ACPI_CONSTANT_EVAL_ONLY)) - acpi_ds_method_data_init(walk_state); -#endif - - /* Put the new state at the head of the walk list */ - - if (thread) { - acpi_ds_push_walk_state(walk_state, thread); - } - - return_PTR(walk_state); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_init_aml_walk - * - * PARAMETERS: walk_state - New state to be initialized - * Op - Current parse op - * method_node - Control method NS node, if any - * aml_start - Start of AML - * aml_length - Length of AML - * Info - Method info block (params, etc.) - * pass_number - 1, 2, or 3 - * - * RETURN: Status - * - * DESCRIPTION: Initialize a walk state for a pass 1 or 2 parse tree walk - * - ******************************************************************************/ - -acpi_status -acpi_ds_init_aml_walk(struct acpi_walk_state *walk_state, - union acpi_parse_object *op, - struct acpi_namespace_node *method_node, - u8 * aml_start, - u32 aml_length, - struct acpi_evaluate_info *info, u8 pass_number) -{ - acpi_status status; - struct acpi_parse_state *parser_state = &walk_state->parser_state; - union acpi_parse_object *extra_op; - - ACPI_FUNCTION_TRACE(ds_init_aml_walk); - - walk_state->parser_state.aml = - walk_state->parser_state.aml_start = aml_start; - walk_state->parser_state.aml_end = - walk_state->parser_state.pkg_end = aml_start + aml_length; - - /* The next_op of the next_walk will be the beginning of the method */ - - walk_state->next_op = NULL; - walk_state->pass_number = pass_number; - - if (info) { - walk_state->params = info->parameters; - walk_state->caller_return_desc = &info->return_object; - } - - status = acpi_ps_init_scope(&walk_state->parser_state, op); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - if (method_node) { - walk_state->parser_state.start_node = method_node; - walk_state->walk_type = ACPI_WALK_METHOD; - walk_state->method_node = method_node; - walk_state->method_desc = - acpi_ns_get_attached_object(method_node); - - /* Push start scope on scope stack and make it current */ - - status = - acpi_ds_scope_stack_push(method_node, ACPI_TYPE_METHOD, - walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Init the method arguments */ - - status = acpi_ds_method_data_init_args(walk_state->params, - ACPI_METHOD_NUM_ARGS, - walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } else { - /* - * Setup the current scope. - * Find a Named Op that has a namespace node associated with it. - * search upwards from this Op. Current scope is the first - * Op with a namespace node. - */ - extra_op = parser_state->start_op; - while (extra_op && !extra_op->common.node) { - extra_op = extra_op->common.parent; - } - - if (!extra_op) { - parser_state->start_node = NULL; - } else { - parser_state->start_node = extra_op->common.node; - } - - if (parser_state->start_node) { - - /* Push start scope on scope stack and make it current */ - - status = - acpi_ds_scope_stack_push(parser_state->start_node, - parser_state->start_node-> - type, walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - } - - status = acpi_ds_init_callbacks(walk_state, pass_number); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ds_delete_walk_state - * - * PARAMETERS: walk_state - State to delete - * - * RETURN: Status - * - * DESCRIPTION: Delete a walk state including all internal data structures - * - ******************************************************************************/ - -void acpi_ds_delete_walk_state(struct acpi_walk_state *walk_state) -{ - union acpi_generic_state *state; - - ACPI_FUNCTION_TRACE_PTR(ds_delete_walk_state, walk_state); - - if (!walk_state) { - return; - } - - if (walk_state->descriptor_type != ACPI_DESC_TYPE_WALK) { - ACPI_ERROR((AE_INFO, "%p is not a valid walk state", - walk_state)); - return; - } - - /* There should not be any open scopes */ - - if (walk_state->parser_state.scope) { - ACPI_ERROR((AE_INFO, "%p walk still has a scope list", - walk_state)); - acpi_ps_cleanup_scope(&walk_state->parser_state); - } - - /* Always must free any linked control states */ - - while (walk_state->control_state) { - state = walk_state->control_state; - walk_state->control_state = state->common.next; - - acpi_ut_delete_generic_state(state); - } - - /* Always must free any linked parse states */ - - while (walk_state->scope_info) { - state = walk_state->scope_info; - walk_state->scope_info = state->common.next; - - acpi_ut_delete_generic_state(state); - } - - /* Always must free any stacked result states */ - - while (walk_state->results) { - state = walk_state->results; - walk_state->results = state->common.next; - - acpi_ut_delete_generic_state(state); - } - - ACPI_FREE(walk_state); - return_VOID; -} diff --git a/drivers/acpi/events/Makefile b/drivers/acpi/events/Makefile deleted file mode 100644 index d29f2ee449cc..000000000000 --- a/drivers/acpi/events/Makefile +++ /dev/null @@ -1,9 +0,0 @@ -# -# Makefile for all Linux ACPI interpreter subdirectories -# - -obj-y := evevent.o evregion.o evsci.o evxfevnt.o \ - evmisc.o evrgnini.o evxface.o evxfregn.o \ - evgpe.o evgpeblk.o - -EXTRA_CFLAGS += $(ACPI_CFLAGS) diff --git a/drivers/acpi/events/evevent.c b/drivers/acpi/events/evevent.c deleted file mode 100644 index 86bf08365dad..000000000000 --- a/drivers/acpi/events/evevent.c +++ /dev/null @@ -1,313 +0,0 @@ -/****************************************************************************** - * - * Module Name: evevent - Fixed Event handling and dispatch - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_EVENTS -ACPI_MODULE_NAME("evevent") - -/* Local prototypes */ -static acpi_status acpi_ev_fixed_event_initialize(void); - -static u32 acpi_ev_fixed_event_dispatch(u32 event); - -/******************************************************************************* - * - * FUNCTION: acpi_ev_initialize_events - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Initialize global data structures for ACPI events (Fixed, GPE) - * - ******************************************************************************/ - -acpi_status acpi_ev_initialize_events(void) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_initialize_events); - - /* - * Initialize the Fixed and General Purpose Events. This is done prior to - * enabling SCIs to prevent interrupts from occurring before the handlers - * are installed. - */ - status = acpi_ev_fixed_event_initialize(); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "Unable to initialize fixed events")); - return_ACPI_STATUS(status); - } - - status = acpi_ev_gpe_initialize(); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "Unable to initialize general purpose events")); - return_ACPI_STATUS(status); - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_install_fadt_gpes - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Completes initialization of the FADT-defined GPE blocks - * (0 and 1). This causes the _PRW methods to be run, so the HW - * must be fully initialized at this point, including global lock - * support. - * - ******************************************************************************/ - -acpi_status acpi_ev_install_fadt_gpes(void) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_install_fadt_gpes); - - /* Namespace must be locked */ - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* FADT GPE Block 0 */ - - (void)acpi_ev_initialize_gpe_block(acpi_gbl_fadt_gpe_device, - acpi_gbl_gpe_fadt_blocks[0]); - - /* FADT GPE Block 1 */ - - (void)acpi_ev_initialize_gpe_block(acpi_gbl_fadt_gpe_device, - acpi_gbl_gpe_fadt_blocks[1]); - - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_install_xrupt_handlers - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Install interrupt handlers for the SCI and Global Lock - * - ******************************************************************************/ - -acpi_status acpi_ev_install_xrupt_handlers(void) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_install_xrupt_handlers); - - /* Install the SCI handler */ - - status = acpi_ev_install_sci_handler(); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "Unable to install System Control Interrupt handler")); - return_ACPI_STATUS(status); - } - - /* Install the handler for the Global Lock */ - - status = acpi_ev_init_global_lock_handler(); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "Unable to initialize Global Lock handler")); - return_ACPI_STATUS(status); - } - - acpi_gbl_events_initialized = TRUE; - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_fixed_event_initialize - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Install the fixed event handlers and enable the fixed events. - * - ******************************************************************************/ - -static acpi_status acpi_ev_fixed_event_initialize(void) -{ - u32 i; - acpi_status status; - - /* - * Initialize the structure that keeps track of fixed event handlers and - * enable the fixed events. - */ - for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) { - acpi_gbl_fixed_event_handlers[i].handler = NULL; - acpi_gbl_fixed_event_handlers[i].context = NULL; - - /* Enable the fixed event */ - - if (acpi_gbl_fixed_event_info[i].enable_register_id != 0xFF) { - status = - acpi_set_register(acpi_gbl_fixed_event_info[i]. - enable_register_id, 0); - if (ACPI_FAILURE(status)) { - return (status); - } - } - } - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_fixed_event_detect - * - * PARAMETERS: None - * - * RETURN: INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED - * - * DESCRIPTION: Checks the PM status register for active fixed events - * - ******************************************************************************/ - -u32 acpi_ev_fixed_event_detect(void) -{ - u32 int_status = ACPI_INTERRUPT_NOT_HANDLED; - u32 fixed_status; - u32 fixed_enable; - u32 i; - - ACPI_FUNCTION_NAME(ev_fixed_event_detect); - - /* - * Read the fixed feature status and enable registers, as all the cases - * depend on their values. Ignore errors here. - */ - (void)acpi_hw_register_read(ACPI_REGISTER_PM1_STATUS, &fixed_status); - (void)acpi_hw_register_read(ACPI_REGISTER_PM1_ENABLE, &fixed_enable); - - ACPI_DEBUG_PRINT((ACPI_DB_INTERRUPTS, - "Fixed Event Block: Enable %08X Status %08X\n", - fixed_enable, fixed_status)); - - /* - * Check for all possible Fixed Events and dispatch those that are active - */ - for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) { - - /* Both the status and enable bits must be on for this event */ - - if ((fixed_status & acpi_gbl_fixed_event_info[i]. - status_bit_mask) - && (fixed_enable & acpi_gbl_fixed_event_info[i]. - enable_bit_mask)) { - - /* Found an active (signalled) event */ - acpi_os_fixed_event_count(i); - int_status |= acpi_ev_fixed_event_dispatch(i); - } - } - - return (int_status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_fixed_event_dispatch - * - * PARAMETERS: Event - Event type - * - * RETURN: INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED - * - * DESCRIPTION: Clears the status bit for the requested event, calls the - * handler that previously registered for the event. - * - ******************************************************************************/ - -static u32 acpi_ev_fixed_event_dispatch(u32 event) -{ - - ACPI_FUNCTION_ENTRY(); - - /* Clear the status bit */ - - (void)acpi_set_register(acpi_gbl_fixed_event_info[event]. - status_register_id, 1); - - /* - * Make sure we've got a handler. If not, report an error. The event is - * disabled to prevent further interrupts. - */ - if (NULL == acpi_gbl_fixed_event_handlers[event].handler) { - (void)acpi_set_register(acpi_gbl_fixed_event_info[event]. - enable_register_id, 0); - - ACPI_ERROR((AE_INFO, - "No installed handler for fixed event [%08X]", - event)); - - return (ACPI_INTERRUPT_NOT_HANDLED); - } - - /* Invoke the Fixed Event handler */ - - return ((acpi_gbl_fixed_event_handlers[event]. - handler) (acpi_gbl_fixed_event_handlers[event].context)); -} diff --git a/drivers/acpi/events/evgpe.c b/drivers/acpi/events/evgpe.c deleted file mode 100644 index d9779608dbd7..000000000000 --- a/drivers/acpi/events/evgpe.c +++ /dev/null @@ -1,722 +0,0 @@ -/****************************************************************************** - * - * Module Name: evgpe - General Purpose Event handling and dispatch - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include - -#define _COMPONENT ACPI_EVENTS -ACPI_MODULE_NAME("evgpe") - -/* Local prototypes */ -static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context); - -/******************************************************************************* - * - * FUNCTION: acpi_ev_set_gpe_type - * - * PARAMETERS: gpe_event_info - GPE to set - * Type - New type - * - * RETURN: Status - * - * DESCRIPTION: Sets the new type for the GPE (wake, run, or wake/run) - * - ******************************************************************************/ - -acpi_status -acpi_ev_set_gpe_type(struct acpi_gpe_event_info *gpe_event_info, u8 type) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_set_gpe_type); - - /* Validate type and update register enable masks */ - - switch (type) { - case ACPI_GPE_TYPE_WAKE: - case ACPI_GPE_TYPE_RUNTIME: - case ACPI_GPE_TYPE_WAKE_RUN: - break; - - default: - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Disable the GPE if currently enabled */ - - status = acpi_ev_disable_gpe(gpe_event_info); - - /* Type was validated above */ - - gpe_event_info->flags &= ~ACPI_GPE_TYPE_MASK; /* Clear type bits */ - gpe_event_info->flags |= type; /* Insert type */ - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_update_gpe_enable_masks - * - * PARAMETERS: gpe_event_info - GPE to update - * Type - What to do: ACPI_GPE_DISABLE or - * ACPI_GPE_ENABLE - * - * RETURN: Status - * - * DESCRIPTION: Updates GPE register enable masks based on the GPE type - * - ******************************************************************************/ - -acpi_status -acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info, - u8 type) -{ - struct acpi_gpe_register_info *gpe_register_info; - u8 register_bit; - - ACPI_FUNCTION_TRACE(ev_update_gpe_enable_masks); - - gpe_register_info = gpe_event_info->register_info; - if (!gpe_register_info) { - return_ACPI_STATUS(AE_NOT_EXIST); - } - register_bit = (u8) - (1 << - (gpe_event_info->gpe_number - gpe_register_info->base_gpe_number)); - - /* 1) Disable case. Simply clear all enable bits */ - - if (type == ACPI_GPE_DISABLE) { - ACPI_CLEAR_BIT(gpe_register_info->enable_for_wake, - register_bit); - ACPI_CLEAR_BIT(gpe_register_info->enable_for_run, register_bit); - return_ACPI_STATUS(AE_OK); - } - - /* 2) Enable case. Set/Clear the appropriate enable bits */ - - switch (gpe_event_info->flags & ACPI_GPE_TYPE_MASK) { - case ACPI_GPE_TYPE_WAKE: - ACPI_SET_BIT(gpe_register_info->enable_for_wake, register_bit); - ACPI_CLEAR_BIT(gpe_register_info->enable_for_run, register_bit); - break; - - case ACPI_GPE_TYPE_RUNTIME: - ACPI_CLEAR_BIT(gpe_register_info->enable_for_wake, - register_bit); - ACPI_SET_BIT(gpe_register_info->enable_for_run, register_bit); - break; - - case ACPI_GPE_TYPE_WAKE_RUN: - ACPI_SET_BIT(gpe_register_info->enable_for_wake, register_bit); - ACPI_SET_BIT(gpe_register_info->enable_for_run, register_bit); - break; - - default: - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_enable_gpe - * - * PARAMETERS: gpe_event_info - GPE to enable - * write_to_hardware - Enable now, or just mark data structs - * (WAKE GPEs should be deferred) - * - * RETURN: Status - * - * DESCRIPTION: Enable a GPE based on the GPE type - * - ******************************************************************************/ - -acpi_status -acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info, - u8 write_to_hardware) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_enable_gpe); - - /* Make sure HW enable masks are updated */ - - status = - acpi_ev_update_gpe_enable_masks(gpe_event_info, ACPI_GPE_ENABLE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Mark wake-enabled or HW enable, or both */ - - switch (gpe_event_info->flags & ACPI_GPE_TYPE_MASK) { - case ACPI_GPE_TYPE_WAKE: - - ACPI_SET_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED); - break; - - case ACPI_GPE_TYPE_WAKE_RUN: - - ACPI_SET_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED); - - /*lint -fallthrough */ - - case ACPI_GPE_TYPE_RUNTIME: - - ACPI_SET_BIT(gpe_event_info->flags, ACPI_GPE_RUN_ENABLED); - - if (write_to_hardware) { - - /* Clear the GPE (of stale events), then enable it */ - - status = acpi_hw_clear_gpe(gpe_event_info); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Enable the requested runtime GPE */ - - status = acpi_hw_write_gpe_enable_reg(gpe_event_info); - } - break; - - default: - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_disable_gpe - * - * PARAMETERS: gpe_event_info - GPE to disable - * - * RETURN: Status - * - * DESCRIPTION: Disable a GPE based on the GPE type - * - ******************************************************************************/ - -acpi_status acpi_ev_disable_gpe(struct acpi_gpe_event_info *gpe_event_info) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_disable_gpe); - - /* Make sure HW enable masks are updated */ - - status = - acpi_ev_update_gpe_enable_masks(gpe_event_info, ACPI_GPE_DISABLE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Clear the appropriate enabled flags for this GPE */ - - switch (gpe_event_info->flags & ACPI_GPE_TYPE_MASK) { - case ACPI_GPE_TYPE_WAKE: - ACPI_CLEAR_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED); - break; - - case ACPI_GPE_TYPE_WAKE_RUN: - ACPI_CLEAR_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED); - - /* fallthrough */ - - case ACPI_GPE_TYPE_RUNTIME: - - /* Disable the requested runtime GPE */ - - ACPI_CLEAR_BIT(gpe_event_info->flags, ACPI_GPE_RUN_ENABLED); - break; - - default: - break; - } - - /* - * Even if we don't know the GPE type, make sure that we always - * disable it. low_disable_gpe will just clear the enable bit for this - * GPE and write it. It will not write out the current GPE enable mask, - * since this may inadvertently enable GPEs too early, if a rogue GPE has - * come in during ACPICA initialization - possibly as a result of AML or - * other code that has enabled the GPE. - */ - status = acpi_hw_low_disable_gpe(gpe_event_info); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_get_gpe_event_info - * - * PARAMETERS: gpe_device - Device node. NULL for GPE0/GPE1 - * gpe_number - Raw GPE number - * - * RETURN: A GPE event_info struct. NULL if not a valid GPE - * - * DESCRIPTION: Returns the event_info struct associated with this GPE. - * Validates the gpe_block and the gpe_number - * - * Should be called only when the GPE lists are semaphore locked - * and not subject to change. - * - ******************************************************************************/ - -struct acpi_gpe_event_info *acpi_ev_get_gpe_event_info(acpi_handle gpe_device, - u32 gpe_number) -{ - union acpi_operand_object *obj_desc; - struct acpi_gpe_block_info *gpe_block; - u32 i; - - ACPI_FUNCTION_ENTRY(); - - /* A NULL gpe_block means use the FADT-defined GPE block(s) */ - - if (!gpe_device) { - - /* Examine GPE Block 0 and 1 (These blocks are permanent) */ - - for (i = 0; i < ACPI_MAX_GPE_BLOCKS; i++) { - gpe_block = acpi_gbl_gpe_fadt_blocks[i]; - if (gpe_block) { - if ((gpe_number >= gpe_block->block_base_number) - && (gpe_number < - gpe_block->block_base_number + - (gpe_block->register_count * 8))) { - return (&gpe_block-> - event_info[gpe_number - - gpe_block-> - block_base_number]); - } - } - } - - /* The gpe_number was not in the range of either FADT GPE block */ - - return (NULL); - } - - /* A Non-NULL gpe_device means this is a GPE Block Device */ - - obj_desc = acpi_ns_get_attached_object((struct acpi_namespace_node *) - gpe_device); - if (!obj_desc || !obj_desc->device.gpe_block) { - return (NULL); - } - - gpe_block = obj_desc->device.gpe_block; - - if ((gpe_number >= gpe_block->block_base_number) && - (gpe_number < - gpe_block->block_base_number + (gpe_block->register_count * 8))) { - return (&gpe_block-> - event_info[gpe_number - gpe_block->block_base_number]); - } - - return (NULL); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_gpe_detect - * - * PARAMETERS: gpe_xrupt_list - Interrupt block for this interrupt. - * Can have multiple GPE blocks attached. - * - * RETURN: INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED - * - * DESCRIPTION: Detect if any GP events have occurred. This function is - * executed at interrupt level. - * - ******************************************************************************/ - -u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list) -{ - acpi_status status; - struct acpi_gpe_block_info *gpe_block; - struct acpi_gpe_register_info *gpe_register_info; - u32 int_status = ACPI_INTERRUPT_NOT_HANDLED; - u8 enabled_status_byte; - u32 status_reg; - u32 enable_reg; - acpi_cpu_flags flags; - u32 i; - u32 j; - - ACPI_FUNCTION_NAME(ev_gpe_detect); - - /* Check for the case where there are no GPEs */ - - if (!gpe_xrupt_list) { - return (int_status); - } - - /* - * We need to obtain the GPE lock for both the data structs and registers - * Note: Not necessary to obtain the hardware lock, since the GPE - * registers are owned by the gpe_lock. - */ - flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); - - /* Examine all GPE blocks attached to this interrupt level */ - - gpe_block = gpe_xrupt_list->gpe_block_list_head; - while (gpe_block) { - /* - * Read all of the 8-bit GPE status and enable registers in this GPE - * block, saving all of them. Find all currently active GP events. - */ - for (i = 0; i < gpe_block->register_count; i++) { - - /* Get the next status/enable pair */ - - gpe_register_info = &gpe_block->register_info[i]; - - /* Read the Status Register */ - - status = - acpi_read(&status_reg, - &gpe_register_info->status_address); - if (ACPI_FAILURE(status)) { - goto unlock_and_exit; - } - - /* Read the Enable Register */ - - status = - acpi_read(&enable_reg, - &gpe_register_info->enable_address); - if (ACPI_FAILURE(status)) { - goto unlock_and_exit; - } - - ACPI_DEBUG_PRINT((ACPI_DB_INTERRUPTS, - "Read GPE Register at GPE%X: Status=%02X, Enable=%02X\n", - gpe_register_info->base_gpe_number, - status_reg, enable_reg)); - - /* Check if there is anything active at all in this register */ - - enabled_status_byte = (u8) (status_reg & enable_reg); - if (!enabled_status_byte) { - - /* No active GPEs in this register, move on */ - - continue; - } - - /* Now look at the individual GPEs in this byte register */ - - for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) { - - /* Examine one GPE bit */ - - if (enabled_status_byte & (1 << j)) { - /* - * Found an active GPE. Dispatch the event to a handler - * or method. - */ - int_status |= - acpi_ev_gpe_dispatch(&gpe_block-> - event_info[((acpi_size) i * ACPI_GPE_REGISTER_WIDTH) + j], j + gpe_register_info->base_gpe_number); - } - } - } - - gpe_block = gpe_block->next; - } - - unlock_and_exit: - - acpi_os_release_lock(acpi_gbl_gpe_lock, flags); - return (int_status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_asynch_execute_gpe_method - * - * PARAMETERS: Context (gpe_event_info) - Info for this GPE - * - * RETURN: None - * - * DESCRIPTION: Perform the actual execution of a GPE control method. This - * function is called from an invocation of acpi_os_execute and - * therefore does NOT execute at interrupt level - so that - * the control method itself is not executed in the context of - * an interrupt handler. - * - ******************************************************************************/ -static void acpi_ev_asynch_enable_gpe(void *context); - -static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context) -{ - struct acpi_gpe_event_info *gpe_event_info = (void *)context; - acpi_status status; - struct acpi_gpe_event_info local_gpe_event_info; - struct acpi_evaluate_info *info; - - ACPI_FUNCTION_TRACE(ev_asynch_execute_gpe_method); - - status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); - if (ACPI_FAILURE(status)) { - return_VOID; - } - - /* Must revalidate the gpe_number/gpe_block */ - - if (!acpi_ev_valid_gpe_event(gpe_event_info)) { - status = acpi_ut_release_mutex(ACPI_MTX_EVENTS); - return_VOID; - } - - /* Set the GPE flags for return to enabled state */ - - (void)acpi_ev_enable_gpe(gpe_event_info, FALSE); - - /* - * Take a snapshot of the GPE info for this level - we copy the info to - * prevent a race condition with remove_handler/remove_block. - */ - ACPI_MEMCPY(&local_gpe_event_info, gpe_event_info, - sizeof(struct acpi_gpe_event_info)); - - status = acpi_ut_release_mutex(ACPI_MTX_EVENTS); - if (ACPI_FAILURE(status)) { - return_VOID; - } - - /* - * Must check for control method type dispatch one more time to avoid a - * race with ev_gpe_install_handler - */ - if ((local_gpe_event_info.flags & ACPI_GPE_DISPATCH_MASK) == - ACPI_GPE_DISPATCH_METHOD) { - - /* Allocate the evaluation information block */ - - info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info)); - if (!info) { - status = AE_NO_MEMORY; - } else { - /* - * Invoke the GPE Method (_Lxx, _Exx) i.e., evaluate the _Lxx/_Exx - * control method that corresponds to this GPE - */ - info->prefix_node = - local_gpe_event_info.dispatch.method_node; - info->flags = ACPI_IGNORE_RETURN_VALUE; - - status = acpi_ns_evaluate(info); - ACPI_FREE(info); - } - - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "while evaluating GPE method [%4.4s]", - acpi_ut_get_node_name - (local_gpe_event_info.dispatch. - method_node))); - } - } - /* Defer enabling of GPE until all notify handlers are done */ - acpi_os_execute(OSL_NOTIFY_HANDLER, acpi_ev_asynch_enable_gpe, - gpe_event_info); - return_VOID; -} - -static void acpi_ev_asynch_enable_gpe(void *context) -{ - struct acpi_gpe_event_info *gpe_event_info = context; - acpi_status status; - if ((gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK) == - ACPI_GPE_LEVEL_TRIGGERED) { - /* - * GPE is level-triggered, we clear the GPE status bit after handling - * the event. - */ - status = acpi_hw_clear_gpe(gpe_event_info); - if (ACPI_FAILURE(status)) { - return_VOID; - } - } - - /* Enable this GPE */ - (void)acpi_hw_write_gpe_enable_reg(gpe_event_info); - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_gpe_dispatch - * - * PARAMETERS: gpe_event_info - Info for this GPE - * gpe_number - Number relative to the parent GPE block - * - * RETURN: INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED - * - * DESCRIPTION: Dispatch a General Purpose Event to either a function (e.g. EC) - * or method (e.g. _Lxx/_Exx) handler. - * - * This function executes at interrupt level. - * - ******************************************************************************/ - -u32 -acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_gpe_dispatch); - - acpi_os_gpe_count(gpe_number); - - /* - * If edge-triggered, clear the GPE status bit now. Note that - * level-triggered events are cleared after the GPE is serviced. - */ - if ((gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK) == - ACPI_GPE_EDGE_TRIGGERED) { - status = acpi_hw_clear_gpe(gpe_event_info); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "Unable to clear GPE[%2X]", - gpe_number)); - return_UINT32(ACPI_INTERRUPT_NOT_HANDLED); - } - } - - /* - * Dispatch the GPE to either an installed handler, or the control method - * associated with this GPE (_Lxx or _Exx). If a handler exists, we invoke - * it and do not attempt to run the method. If there is neither a handler - * nor a method, we disable this GPE to prevent further such pointless - * events from firing. - */ - switch (gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) { - case ACPI_GPE_DISPATCH_HANDLER: - - /* - * Invoke the installed handler (at interrupt level) - * Ignore return status for now. - * TBD: leave GPE disabled on error? - */ - (void)gpe_event_info->dispatch.handler->address(gpe_event_info-> - dispatch. - handler-> - context); - - /* It is now safe to clear level-triggered events. */ - - if ((gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK) == - ACPI_GPE_LEVEL_TRIGGERED) { - status = acpi_hw_clear_gpe(gpe_event_info); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "Unable to clear GPE[%2X]", - gpe_number)); - return_UINT32(ACPI_INTERRUPT_NOT_HANDLED); - } - } - break; - - case ACPI_GPE_DISPATCH_METHOD: - - /* - * Disable the GPE, so it doesn't keep firing before the method has a - * chance to run (it runs asynchronously with interrupts enabled). - */ - status = acpi_ev_disable_gpe(gpe_event_info); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "Unable to disable GPE[%2X]", - gpe_number)); - return_UINT32(ACPI_INTERRUPT_NOT_HANDLED); - } - - /* - * Execute the method associated with the GPE - * NOTE: Level-triggered GPEs are cleared after the method completes. - */ - status = acpi_os_execute(OSL_GPE_HANDLER, - acpi_ev_asynch_execute_gpe_method, - gpe_event_info); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "Unable to queue handler for GPE[%2X] - event disabled", - gpe_number)); - } - break; - - default: - - /* No handler or method to run! */ - - ACPI_ERROR((AE_INFO, - "No handler or method for GPE[%2X], disabling event", - gpe_number)); - - /* - * Disable the GPE. The GPE will remain disabled until the ACPICA - * Core Subsystem is restarted, or a handler is installed. - */ - status = acpi_ev_disable_gpe(gpe_event_info); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "Unable to disable GPE[%2X]", - gpe_number)); - return_UINT32(ACPI_INTERRUPT_NOT_HANDLED); - } - break; - } - - return_UINT32(ACPI_INTERRUPT_HANDLED); -} diff --git a/drivers/acpi/events/evgpeblk.c b/drivers/acpi/events/evgpeblk.c deleted file mode 100644 index 2a8d1856038f..000000000000 --- a/drivers/acpi/events/evgpeblk.c +++ /dev/null @@ -1,1227 +0,0 @@ -/****************************************************************************** - * - * Module Name: evgpeblk - GPE block creation and initialization. - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include - -#define _COMPONENT ACPI_EVENTS -ACPI_MODULE_NAME("evgpeblk") - -/* Local prototypes */ -static acpi_status -acpi_ev_save_method_info(acpi_handle obj_handle, - u32 level, void *obj_desc, void **return_value); - -static acpi_status -acpi_ev_match_prw_and_gpe(acpi_handle obj_handle, - u32 level, void *info, void **return_value); - -static struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32 - interrupt_number); - -static acpi_status -acpi_ev_delete_gpe_xrupt(struct acpi_gpe_xrupt_info *gpe_xrupt); - -static acpi_status -acpi_ev_install_gpe_block(struct acpi_gpe_block_info *gpe_block, - u32 interrupt_number); - -static acpi_status -acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block); - -/******************************************************************************* - * - * FUNCTION: acpi_ev_valid_gpe_event - * - * PARAMETERS: gpe_event_info - Info for this GPE - * - * RETURN: TRUE if the gpe_event is valid - * - * DESCRIPTION: Validate a GPE event. DO NOT CALL FROM INTERRUPT LEVEL. - * Should be called only when the GPE lists are semaphore locked - * and not subject to change. - * - ******************************************************************************/ - -u8 acpi_ev_valid_gpe_event(struct acpi_gpe_event_info *gpe_event_info) -{ - struct acpi_gpe_xrupt_info *gpe_xrupt_block; - struct acpi_gpe_block_info *gpe_block; - - ACPI_FUNCTION_ENTRY(); - - /* No need for spin lock since we are not changing any list elements */ - - /* Walk the GPE interrupt levels */ - - gpe_xrupt_block = acpi_gbl_gpe_xrupt_list_head; - while (gpe_xrupt_block) { - gpe_block = gpe_xrupt_block->gpe_block_list_head; - - /* Walk the GPE blocks on this interrupt level */ - - while (gpe_block) { - if ((&gpe_block->event_info[0] <= gpe_event_info) && - (&gpe_block-> - event_info[((acpi_size) gpe_block-> - register_count) * 8] > - gpe_event_info)) { - return (TRUE); - } - - gpe_block = gpe_block->next; - } - - gpe_xrupt_block = gpe_xrupt_block->next; - } - - return (FALSE); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_walk_gpe_list - * - * PARAMETERS: gpe_walk_callback - Routine called for each GPE block - * Context - Value passed to callback - * - * RETURN: Status - * - * DESCRIPTION: Walk the GPE lists. - * - ******************************************************************************/ - -acpi_status -acpi_ev_walk_gpe_list(acpi_gpe_callback gpe_walk_callback, void *context) -{ - struct acpi_gpe_block_info *gpe_block; - struct acpi_gpe_xrupt_info *gpe_xrupt_info; - acpi_status status = AE_OK; - acpi_cpu_flags flags; - - ACPI_FUNCTION_TRACE(ev_walk_gpe_list); - - flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); - - /* Walk the interrupt level descriptor list */ - - gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head; - while (gpe_xrupt_info) { - - /* Walk all Gpe Blocks attached to this interrupt level */ - - gpe_block = gpe_xrupt_info->gpe_block_list_head; - while (gpe_block) { - - /* One callback per GPE block */ - - status = - gpe_walk_callback(gpe_xrupt_info, gpe_block, - context); - if (ACPI_FAILURE(status)) { - if (status == AE_CTRL_END) { /* Callback abort */ - status = AE_OK; - } - goto unlock_and_exit; - } - - gpe_block = gpe_block->next; - } - - gpe_xrupt_info = gpe_xrupt_info->next; - } - - unlock_and_exit: - acpi_os_release_lock(acpi_gbl_gpe_lock, flags); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_delete_gpe_handlers - * - * PARAMETERS: gpe_xrupt_info - GPE Interrupt info - * gpe_block - Gpe Block info - * - * RETURN: Status - * - * DESCRIPTION: Delete all Handler objects found in the GPE data structs. - * Used only prior to termination. - * - ******************************************************************************/ - -acpi_status -acpi_ev_delete_gpe_handlers(struct acpi_gpe_xrupt_info *gpe_xrupt_info, - struct acpi_gpe_block_info *gpe_block, - void *context) -{ - struct acpi_gpe_event_info *gpe_event_info; - u32 i; - u32 j; - - ACPI_FUNCTION_TRACE(ev_delete_gpe_handlers); - - /* Examine each GPE Register within the block */ - - for (i = 0; i < gpe_block->register_count; i++) { - - /* Now look at the individual GPEs in this byte register */ - - for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) { - gpe_event_info = - &gpe_block-> - event_info[((acpi_size) i * - ACPI_GPE_REGISTER_WIDTH) + j]; - - if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) == - ACPI_GPE_DISPATCH_HANDLER) { - ACPI_FREE(gpe_event_info->dispatch.handler); - gpe_event_info->dispatch.handler = NULL; - gpe_event_info->flags &= - ~ACPI_GPE_DISPATCH_MASK; - } - } - } - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_save_method_info - * - * PARAMETERS: Callback from walk_namespace - * - * RETURN: Status - * - * DESCRIPTION: Called from acpi_walk_namespace. Expects each object to be a - * control method under the _GPE portion of the namespace. - * Extract the name and GPE type from the object, saving this - * information for quick lookup during GPE dispatch - * - * The name of each GPE control method is of the form: - * "_Lxx" or "_Exx" - * Where: - * L - means that the GPE is level triggered - * E - means that the GPE is edge triggered - * xx - is the GPE number [in HEX] - * - ******************************************************************************/ - -static acpi_status -acpi_ev_save_method_info(acpi_handle obj_handle, - u32 level, void *obj_desc, void **return_value) -{ - struct acpi_gpe_block_info *gpe_block = (void *)obj_desc; - struct acpi_gpe_event_info *gpe_event_info; - u32 gpe_number; - char name[ACPI_NAME_SIZE + 1]; - u8 type; - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_save_method_info); - - /* - * _Lxx and _Exx GPE method support - * - * 1) Extract the name from the object and convert to a string - */ - ACPI_MOVE_32_TO_32(name, - &((struct acpi_namespace_node *)obj_handle)->name. - integer); - name[ACPI_NAME_SIZE] = 0; - - /* - * 2) Edge/Level determination is based on the 2nd character - * of the method name - * - * NOTE: Default GPE type is RUNTIME. May be changed later to WAKE - * if a _PRW object is found that points to this GPE. - */ - switch (name[1]) { - case 'L': - type = ACPI_GPE_LEVEL_TRIGGERED; - break; - - case 'E': - type = ACPI_GPE_EDGE_TRIGGERED; - break; - - default: - /* Unknown method type, just ignore it! */ - - ACPI_DEBUG_PRINT((ACPI_DB_LOAD, - "Ignoring unknown GPE method type: %s (name not of form _Lxx or _Exx)", - name)); - return_ACPI_STATUS(AE_OK); - } - - /* Convert the last two characters of the name to the GPE Number */ - - gpe_number = ACPI_STRTOUL(&name[2], NULL, 16); - if (gpe_number == ACPI_UINT32_MAX) { - - /* Conversion failed; invalid method, just ignore it */ - - ACPI_DEBUG_PRINT((ACPI_DB_LOAD, - "Could not extract GPE number from name: %s (name is not of form _Lxx or _Exx)", - name)); - return_ACPI_STATUS(AE_OK); - } - - /* Ensure that we have a valid GPE number for this GPE block */ - - if ((gpe_number < gpe_block->block_base_number) || - (gpe_number >= - (gpe_block->block_base_number + - (gpe_block->register_count * 8)))) { - /* - * Not valid for this GPE block, just ignore it. However, it may be - * valid for a different GPE block, since GPE0 and GPE1 methods both - * appear under \_GPE. - */ - return_ACPI_STATUS(AE_OK); - } - - /* - * Now we can add this information to the gpe_event_info block for use - * during dispatch of this GPE. Default type is RUNTIME, although this may - * change when the _PRW methods are executed later. - */ - gpe_event_info = - &gpe_block->event_info[gpe_number - gpe_block->block_base_number]; - - gpe_event_info->flags = (u8) - (type | ACPI_GPE_DISPATCH_METHOD | ACPI_GPE_TYPE_RUNTIME); - - gpe_event_info->dispatch.method_node = - (struct acpi_namespace_node *)obj_handle; - - /* Update enable mask, but don't enable the HW GPE as of yet */ - - status = acpi_ev_enable_gpe(gpe_event_info, FALSE); - - ACPI_DEBUG_PRINT((ACPI_DB_LOAD, - "Registered GPE method %s as GPE number 0x%.2X\n", - name, gpe_number)); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_match_prw_and_gpe - * - * PARAMETERS: Callback from walk_namespace - * - * RETURN: Status. NOTE: We ignore errors so that the _PRW walk is - * not aborted on a single _PRW failure. - * - * DESCRIPTION: Called from acpi_walk_namespace. Expects each object to be a - * Device. Run the _PRW method. If present, extract the GPE - * number and mark the GPE as a WAKE GPE. - * - ******************************************************************************/ - -static acpi_status -acpi_ev_match_prw_and_gpe(acpi_handle obj_handle, - u32 level, void *info, void **return_value) -{ - struct acpi_gpe_walk_info *gpe_info = (void *)info; - struct acpi_namespace_node *gpe_device; - struct acpi_gpe_block_info *gpe_block; - struct acpi_namespace_node *target_gpe_device; - struct acpi_gpe_event_info *gpe_event_info; - union acpi_operand_object *pkg_desc; - union acpi_operand_object *obj_desc; - u32 gpe_number; - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_match_prw_and_gpe); - - /* Check for a _PRW method under this device */ - - status = acpi_ut_evaluate_object(obj_handle, METHOD_NAME__PRW, - ACPI_BTYPE_PACKAGE, &pkg_desc); - if (ACPI_FAILURE(status)) { - - /* Ignore all errors from _PRW, we don't want to abort the subsystem */ - - return_ACPI_STATUS(AE_OK); - } - - /* The returned _PRW package must have at least two elements */ - - if (pkg_desc->package.count < 2) { - goto cleanup; - } - - /* Extract pointers from the input context */ - - gpe_device = gpe_info->gpe_device; - gpe_block = gpe_info->gpe_block; - - /* - * The _PRW object must return a package, we are only interested in the - * first element - */ - obj_desc = pkg_desc->package.elements[0]; - - if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) { - - /* Use FADT-defined GPE device (from definition of _PRW) */ - - target_gpe_device = acpi_gbl_fadt_gpe_device; - - /* Integer is the GPE number in the FADT described GPE blocks */ - - gpe_number = (u32) obj_desc->integer.value; - } else if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_PACKAGE) { - - /* Package contains a GPE reference and GPE number within a GPE block */ - - if ((obj_desc->package.count < 2) || - (ACPI_GET_OBJECT_TYPE(obj_desc->package.elements[0]) != - ACPI_TYPE_LOCAL_REFERENCE) - || (ACPI_GET_OBJECT_TYPE(obj_desc->package.elements[1]) != - ACPI_TYPE_INTEGER)) { - goto cleanup; - } - - /* Get GPE block reference and decode */ - - target_gpe_device = - obj_desc->package.elements[0]->reference.node; - gpe_number = (u32) obj_desc->package.elements[1]->integer.value; - } else { - /* Unknown type, just ignore it */ - - goto cleanup; - } - - /* - * Is this GPE within this block? - * - * TRUE if and only if these conditions are true: - * 1) The GPE devices match. - * 2) The GPE index(number) is within the range of the Gpe Block - * associated with the GPE device. - */ - if ((gpe_device == target_gpe_device) && - (gpe_number >= gpe_block->block_base_number) && - (gpe_number < - gpe_block->block_base_number + (gpe_block->register_count * 8))) { - gpe_event_info = - &gpe_block->event_info[gpe_number - - gpe_block->block_base_number]; - - /* Mark GPE for WAKE-ONLY but WAKE_DISABLED */ - - gpe_event_info->flags &= - ~(ACPI_GPE_WAKE_ENABLED | ACPI_GPE_RUN_ENABLED); - - status = - acpi_ev_set_gpe_type(gpe_event_info, ACPI_GPE_TYPE_WAKE); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - status = - acpi_ev_update_gpe_enable_masks(gpe_event_info, - ACPI_GPE_DISABLE); - } - - cleanup: - acpi_ut_remove_reference(pkg_desc); - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_get_gpe_xrupt_block - * - * PARAMETERS: interrupt_number - Interrupt for a GPE block - * - * RETURN: A GPE interrupt block - * - * DESCRIPTION: Get or Create a GPE interrupt block. There is one interrupt - * block per unique interrupt level used for GPEs. Should be - * called only when the GPE lists are semaphore locked and not - * subject to change. - * - ******************************************************************************/ - -static struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32 - interrupt_number) -{ - struct acpi_gpe_xrupt_info *next_gpe_xrupt; - struct acpi_gpe_xrupt_info *gpe_xrupt; - acpi_status status; - acpi_cpu_flags flags; - - ACPI_FUNCTION_TRACE(ev_get_gpe_xrupt_block); - - /* No need for lock since we are not changing any list elements here */ - - next_gpe_xrupt = acpi_gbl_gpe_xrupt_list_head; - while (next_gpe_xrupt) { - if (next_gpe_xrupt->interrupt_number == interrupt_number) { - return_PTR(next_gpe_xrupt); - } - - next_gpe_xrupt = next_gpe_xrupt->next; - } - - /* Not found, must allocate a new xrupt descriptor */ - - gpe_xrupt = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_gpe_xrupt_info)); - if (!gpe_xrupt) { - return_PTR(NULL); - } - - gpe_xrupt->interrupt_number = interrupt_number; - - /* Install new interrupt descriptor with spin lock */ - - flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); - if (acpi_gbl_gpe_xrupt_list_head) { - next_gpe_xrupt = acpi_gbl_gpe_xrupt_list_head; - while (next_gpe_xrupt->next) { - next_gpe_xrupt = next_gpe_xrupt->next; - } - - next_gpe_xrupt->next = gpe_xrupt; - gpe_xrupt->previous = next_gpe_xrupt; - } else { - acpi_gbl_gpe_xrupt_list_head = gpe_xrupt; - } - acpi_os_release_lock(acpi_gbl_gpe_lock, flags); - - /* Install new interrupt handler if not SCI_INT */ - - if (interrupt_number != acpi_gbl_FADT.sci_interrupt) { - status = acpi_os_install_interrupt_handler(interrupt_number, - acpi_ev_gpe_xrupt_handler, - gpe_xrupt); - if (ACPI_FAILURE(status)) { - ACPI_ERROR((AE_INFO, - "Could not install GPE interrupt handler at level 0x%X", - interrupt_number)); - return_PTR(NULL); - } - } - - return_PTR(gpe_xrupt); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_delete_gpe_xrupt - * - * PARAMETERS: gpe_xrupt - A GPE interrupt info block - * - * RETURN: Status - * - * DESCRIPTION: Remove and free a gpe_xrupt block. Remove an associated - * interrupt handler if not the SCI interrupt. - * - ******************************************************************************/ - -static acpi_status -acpi_ev_delete_gpe_xrupt(struct acpi_gpe_xrupt_info *gpe_xrupt) -{ - acpi_status status; - acpi_cpu_flags flags; - - ACPI_FUNCTION_TRACE(ev_delete_gpe_xrupt); - - /* We never want to remove the SCI interrupt handler */ - - if (gpe_xrupt->interrupt_number == acpi_gbl_FADT.sci_interrupt) { - gpe_xrupt->gpe_block_list_head = NULL; - return_ACPI_STATUS(AE_OK); - } - - /* Disable this interrupt */ - - status = - acpi_os_remove_interrupt_handler(gpe_xrupt->interrupt_number, - acpi_ev_gpe_xrupt_handler); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Unlink the interrupt block with lock */ - - flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); - if (gpe_xrupt->previous) { - gpe_xrupt->previous->next = gpe_xrupt->next; - } else { - /* No previous, update list head */ - - acpi_gbl_gpe_xrupt_list_head = gpe_xrupt->next; - } - - if (gpe_xrupt->next) { - gpe_xrupt->next->previous = gpe_xrupt->previous; - } - acpi_os_release_lock(acpi_gbl_gpe_lock, flags); - - /* Free the block */ - - ACPI_FREE(gpe_xrupt); - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_install_gpe_block - * - * PARAMETERS: gpe_block - New GPE block - * interrupt_number - Xrupt to be associated with this - * GPE block - * - * RETURN: Status - * - * DESCRIPTION: Install new GPE block with mutex support - * - ******************************************************************************/ - -static acpi_status -acpi_ev_install_gpe_block(struct acpi_gpe_block_info *gpe_block, - u32 interrupt_number) -{ - struct acpi_gpe_block_info *next_gpe_block; - struct acpi_gpe_xrupt_info *gpe_xrupt_block; - acpi_status status; - acpi_cpu_flags flags; - - ACPI_FUNCTION_TRACE(ev_install_gpe_block); - - status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - gpe_xrupt_block = acpi_ev_get_gpe_xrupt_block(interrupt_number); - if (!gpe_xrupt_block) { - status = AE_NO_MEMORY; - goto unlock_and_exit; - } - - /* Install the new block at the end of the list with lock */ - - flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); - if (gpe_xrupt_block->gpe_block_list_head) { - next_gpe_block = gpe_xrupt_block->gpe_block_list_head; - while (next_gpe_block->next) { - next_gpe_block = next_gpe_block->next; - } - - next_gpe_block->next = gpe_block; - gpe_block->previous = next_gpe_block; - } else { - gpe_xrupt_block->gpe_block_list_head = gpe_block; - } - - gpe_block->xrupt_block = gpe_xrupt_block; - acpi_os_release_lock(acpi_gbl_gpe_lock, flags); - - unlock_and_exit: - status = acpi_ut_release_mutex(ACPI_MTX_EVENTS); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_delete_gpe_block - * - * PARAMETERS: gpe_block - Existing GPE block - * - * RETURN: Status - * - * DESCRIPTION: Remove a GPE block - * - ******************************************************************************/ - -acpi_status acpi_ev_delete_gpe_block(struct acpi_gpe_block_info *gpe_block) -{ - acpi_status status; - acpi_cpu_flags flags; - - ACPI_FUNCTION_TRACE(ev_install_gpe_block); - - status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Disable all GPEs in this block */ - - status = - acpi_hw_disable_gpe_block(gpe_block->xrupt_block, gpe_block, NULL); - - if (!gpe_block->previous && !gpe_block->next) { - - /* This is the last gpe_block on this interrupt */ - - status = acpi_ev_delete_gpe_xrupt(gpe_block->xrupt_block); - if (ACPI_FAILURE(status)) { - goto unlock_and_exit; - } - } else { - /* Remove the block on this interrupt with lock */ - - flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); - if (gpe_block->previous) { - gpe_block->previous->next = gpe_block->next; - } else { - gpe_block->xrupt_block->gpe_block_list_head = - gpe_block->next; - } - - if (gpe_block->next) { - gpe_block->next->previous = gpe_block->previous; - } - acpi_os_release_lock(acpi_gbl_gpe_lock, flags); - } - - acpi_current_gpe_count -= - gpe_block->register_count * ACPI_GPE_REGISTER_WIDTH; - - /* Free the gpe_block */ - - ACPI_FREE(gpe_block->register_info); - ACPI_FREE(gpe_block->event_info); - ACPI_FREE(gpe_block); - - unlock_and_exit: - status = acpi_ut_release_mutex(ACPI_MTX_EVENTS); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_create_gpe_info_blocks - * - * PARAMETERS: gpe_block - New GPE block - * - * RETURN: Status - * - * DESCRIPTION: Create the register_info and event_info blocks for this GPE block - * - ******************************************************************************/ - -static acpi_status -acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block) -{ - struct acpi_gpe_register_info *gpe_register_info = NULL; - struct acpi_gpe_event_info *gpe_event_info = NULL; - struct acpi_gpe_event_info *this_event; - struct acpi_gpe_register_info *this_register; - u32 i; - u32 j; - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_create_gpe_info_blocks); - - /* Allocate the GPE register information block */ - - gpe_register_info = ACPI_ALLOCATE_ZEROED((acpi_size) gpe_block-> - register_count * - sizeof(struct - acpi_gpe_register_info)); - if (!gpe_register_info) { - ACPI_ERROR((AE_INFO, - "Could not allocate the GpeRegisterInfo table")); - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* - * Allocate the GPE event_info block. There are eight distinct GPEs - * per register. Initialization to zeros is sufficient. - */ - gpe_event_info = ACPI_ALLOCATE_ZEROED(((acpi_size) gpe_block-> - register_count * - ACPI_GPE_REGISTER_WIDTH) * - sizeof(struct - acpi_gpe_event_info)); - if (!gpe_event_info) { - ACPI_ERROR((AE_INFO, - "Could not allocate the GpeEventInfo table")); - status = AE_NO_MEMORY; - goto error_exit; - } - - /* Save the new Info arrays in the GPE block */ - - gpe_block->register_info = gpe_register_info; - gpe_block->event_info = gpe_event_info; - - /* - * Initialize the GPE Register and Event structures. A goal of these - * tables is to hide the fact that there are two separate GPE register - * sets in a given GPE hardware block, the status registers occupy the - * first half, and the enable registers occupy the second half. - */ - this_register = gpe_register_info; - this_event = gpe_event_info; - - for (i = 0; i < gpe_block->register_count; i++) { - - /* Init the register_info for this GPE register (8 GPEs) */ - - this_register->base_gpe_number = - (u8) (gpe_block->block_base_number + - (i * ACPI_GPE_REGISTER_WIDTH)); - - this_register->status_address.address = - gpe_block->block_address.address + i; - - this_register->enable_address.address = - gpe_block->block_address.address + i + - gpe_block->register_count; - - this_register->status_address.space_id = - gpe_block->block_address.space_id; - this_register->enable_address.space_id = - gpe_block->block_address.space_id; - this_register->status_address.bit_width = - ACPI_GPE_REGISTER_WIDTH; - this_register->enable_address.bit_width = - ACPI_GPE_REGISTER_WIDTH; - this_register->status_address.bit_offset = 0; - this_register->enable_address.bit_offset = 0; - - /* Init the event_info for each GPE within this register */ - - for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) { - this_event->gpe_number = - (u8) (this_register->base_gpe_number + j); - this_event->register_info = this_register; - this_event++; - } - - /* Disable all GPEs within this register */ - - status = acpi_write(0x00, &this_register->enable_address); - if (ACPI_FAILURE(status)) { - goto error_exit; - } - - /* Clear any pending GPE events within this register */ - - status = acpi_write(0xFF, &this_register->status_address); - if (ACPI_FAILURE(status)) { - goto error_exit; - } - - this_register++; - } - - return_ACPI_STATUS(AE_OK); - - error_exit: - if (gpe_register_info) { - ACPI_FREE(gpe_register_info); - } - if (gpe_event_info) { - ACPI_FREE(gpe_event_info); - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_create_gpe_block - * - * PARAMETERS: gpe_device - Handle to the parent GPE block - * gpe_block_address - Address and space_iD - * register_count - Number of GPE register pairs in the block - * gpe_block_base_number - Starting GPE number for the block - * interrupt_number - H/W interrupt for the block - * return_gpe_block - Where the new block descriptor is returned - * - * RETURN: Status - * - * DESCRIPTION: Create and Install a block of GPE registers. All GPEs within - * the block are disabled at exit. - * Note: Assumes namespace is locked. - * - ******************************************************************************/ - -acpi_status -acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device, - struct acpi_generic_address *gpe_block_address, - u32 register_count, - u8 gpe_block_base_number, - u32 interrupt_number, - struct acpi_gpe_block_info **return_gpe_block) -{ - acpi_status status; - struct acpi_gpe_block_info *gpe_block; - - ACPI_FUNCTION_TRACE(ev_create_gpe_block); - - if (!register_count) { - return_ACPI_STATUS(AE_OK); - } - - /* Allocate a new GPE block */ - - gpe_block = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_gpe_block_info)); - if (!gpe_block) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Initialize the new GPE block */ - - gpe_block->node = gpe_device; - gpe_block->register_count = register_count; - gpe_block->block_base_number = gpe_block_base_number; - - ACPI_MEMCPY(&gpe_block->block_address, gpe_block_address, - sizeof(struct acpi_generic_address)); - - /* - * Create the register_info and event_info sub-structures - * Note: disables and clears all GPEs in the block - */ - status = acpi_ev_create_gpe_info_blocks(gpe_block); - if (ACPI_FAILURE(status)) { - ACPI_FREE(gpe_block); - return_ACPI_STATUS(status); - } - - /* Install the new block in the global lists */ - - status = acpi_ev_install_gpe_block(gpe_block, interrupt_number); - if (ACPI_FAILURE(status)) { - ACPI_FREE(gpe_block); - return_ACPI_STATUS(status); - } - - /* Find all GPE methods (_Lxx, _Exx) for this block */ - - status = acpi_ns_walk_namespace(ACPI_TYPE_METHOD, gpe_device, - ACPI_UINT32_MAX, ACPI_NS_WALK_NO_UNLOCK, - acpi_ev_save_method_info, gpe_block, - NULL); - - /* Return the new block */ - - if (return_gpe_block) { - (*return_gpe_block) = gpe_block; - } - - ACPI_DEBUG_PRINT((ACPI_DB_INIT, - "GPE %02X to %02X [%4.4s] %u regs on int 0x%X\n", - (u32) gpe_block->block_base_number, - (u32) (gpe_block->block_base_number + - ((gpe_block->register_count * - ACPI_GPE_REGISTER_WIDTH) - 1)), - gpe_device->name.ascii, gpe_block->register_count, - interrupt_number)); - - /* Update global count of currently available GPEs */ - - acpi_current_gpe_count += register_count * ACPI_GPE_REGISTER_WIDTH; - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_initialize_gpe_block - * - * PARAMETERS: gpe_device - Handle to the parent GPE block - * gpe_block - Gpe Block info - * - * RETURN: Status - * - * DESCRIPTION: Initialize and enable a GPE block. First find and run any - * _PRT methods associated with the block, then enable the - * appropriate GPEs. - * Note: Assumes namespace is locked. - * - ******************************************************************************/ - -acpi_status -acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device, - struct acpi_gpe_block_info *gpe_block) -{ - acpi_status status; - struct acpi_gpe_event_info *gpe_event_info; - struct acpi_gpe_walk_info gpe_info; - u32 wake_gpe_count; - u32 gpe_enabled_count; - u32 i; - u32 j; - - ACPI_FUNCTION_TRACE(ev_initialize_gpe_block); - - /* Ignore a null GPE block (e.g., if no GPE block 1 exists) */ - - if (!gpe_block) { - return_ACPI_STATUS(AE_OK); - } - - /* - * Runtime option: Should wake GPEs be enabled at runtime? The default - * is no, they should only be enabled just as the machine goes to sleep. - */ - if (acpi_gbl_leave_wake_gpes_disabled) { - /* - * Differentiate runtime vs wake GPEs, via the _PRW control methods. - * Each GPE that has one or more _PRWs that reference it is by - * definition a wake GPE and will not be enabled while the machine - * is running. - */ - gpe_info.gpe_block = gpe_block; - gpe_info.gpe_device = gpe_device; - - status = - acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK, - acpi_ev_match_prw_and_gpe, &gpe_info, - NULL); - } - - /* - * Enable all GPEs in this block that have these attributes: - * 1) are "runtime" or "run/wake" GPEs, and - * 2) have a corresponding _Lxx or _Exx method - * - * Any other GPEs within this block must be enabled via the acpi_enable_gpe() - * external interface. - */ - wake_gpe_count = 0; - gpe_enabled_count = 0; - - for (i = 0; i < gpe_block->register_count; i++) { - for (j = 0; j < 8; j++) { - - /* Get the info block for this particular GPE */ - - gpe_event_info = - &gpe_block-> - event_info[((acpi_size) i * - ACPI_GPE_REGISTER_WIDTH) + j]; - - if (((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) == - ACPI_GPE_DISPATCH_METHOD) - && (gpe_event_info->flags & ACPI_GPE_TYPE_RUNTIME)) { - gpe_enabled_count++; - } - - if (gpe_event_info->flags & ACPI_GPE_TYPE_WAKE) { - wake_gpe_count++; - } - } - } - - ACPI_DEBUG_PRINT((ACPI_DB_INIT, - "Found %u Wake, Enabled %u Runtime GPEs in this block\n", - wake_gpe_count, gpe_enabled_count)); - - /* Enable all valid runtime GPEs found above */ - - status = acpi_hw_enable_runtime_gpe_block(NULL, gpe_block, NULL); - if (ACPI_FAILURE(status)) { - ACPI_ERROR((AE_INFO, "Could not enable GPEs in GpeBlock %p", - gpe_block)); - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_gpe_initialize - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Initialize the GPE data structures - * - ******************************************************************************/ - -acpi_status acpi_ev_gpe_initialize(void) -{ - u32 register_count0 = 0; - u32 register_count1 = 0; - u32 gpe_number_max = 0; - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_gpe_initialize); - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * Initialize the GPE Block(s) defined in the FADT - * - * Why the GPE register block lengths are divided by 2: From the ACPI Spec, - * section "General-Purpose Event Registers", we have: - * - * "Each register block contains two registers of equal length - * GPEx_STS and GPEx_EN (where x is 0 or 1). The length of the - * GPE0_STS and GPE0_EN registers is equal to half the GPE0_LEN - * The length of the GPE1_STS and GPE1_EN registers is equal to - * half the GPE1_LEN. If a generic register block is not supported - * then its respective block pointer and block length values in the - * FADT table contain zeros. The GPE0_LEN and GPE1_LEN do not need - * to be the same size." - */ - - /* - * Determine the maximum GPE number for this machine. - * - * Note: both GPE0 and GPE1 are optional, and either can exist without - * the other. - * - * If EITHER the register length OR the block address are zero, then that - * particular block is not supported. - */ - if (acpi_gbl_FADT.gpe0_block_length && - acpi_gbl_FADT.xgpe0_block.address) { - - /* GPE block 0 exists (has both length and address > 0) */ - - register_count0 = (u16) (acpi_gbl_FADT.gpe0_block_length / 2); - - gpe_number_max = - (register_count0 * ACPI_GPE_REGISTER_WIDTH) - 1; - - /* Install GPE Block 0 */ - - status = acpi_ev_create_gpe_block(acpi_gbl_fadt_gpe_device, - &acpi_gbl_FADT.xgpe0_block, - register_count0, 0, - acpi_gbl_FADT.sci_interrupt, - &acpi_gbl_gpe_fadt_blocks[0]); - - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "Could not create GPE Block 0")); - } - } - - if (acpi_gbl_FADT.gpe1_block_length && - acpi_gbl_FADT.xgpe1_block.address) { - - /* GPE block 1 exists (has both length and address > 0) */ - - register_count1 = (u16) (acpi_gbl_FADT.gpe1_block_length / 2); - - /* Check for GPE0/GPE1 overlap (if both banks exist) */ - - if ((register_count0) && - (gpe_number_max >= acpi_gbl_FADT.gpe1_base)) { - ACPI_ERROR((AE_INFO, - "GPE0 block (GPE 0 to %d) overlaps the GPE1 block (GPE %d to %d) - Ignoring GPE1", - gpe_number_max, acpi_gbl_FADT.gpe1_base, - acpi_gbl_FADT.gpe1_base + - ((register_count1 * - ACPI_GPE_REGISTER_WIDTH) - 1))); - - /* Ignore GPE1 block by setting the register count to zero */ - - register_count1 = 0; - } else { - /* Install GPE Block 1 */ - - status = - acpi_ev_create_gpe_block(acpi_gbl_fadt_gpe_device, - &acpi_gbl_FADT.xgpe1_block, - register_count1, - acpi_gbl_FADT.gpe1_base, - acpi_gbl_FADT. - sci_interrupt, - &acpi_gbl_gpe_fadt_blocks - [1]); - - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "Could not create GPE Block 1")); - } - - /* - * GPE0 and GPE1 do not have to be contiguous in the GPE number - * space. However, GPE0 always starts at GPE number zero. - */ - gpe_number_max = acpi_gbl_FADT.gpe1_base + - ((register_count1 * ACPI_GPE_REGISTER_WIDTH) - 1); - } - } - - /* Exit if there are no GPE registers */ - - if ((register_count0 + register_count1) == 0) { - - /* GPEs are not required by ACPI, this is OK */ - - ACPI_DEBUG_PRINT((ACPI_DB_INIT, - "There are no GPE blocks defined in the FADT\n")); - status = AE_OK; - goto cleanup; - } - - /* Check for Max GPE number out-of-range */ - - if (gpe_number_max > ACPI_GPE_MAX) { - ACPI_ERROR((AE_INFO, - "Maximum GPE number from FADT is too large: 0x%X", - gpe_number_max)); - status = AE_BAD_VALUE; - goto cleanup; - } - - cleanup: - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return_ACPI_STATUS(AE_OK); -} diff --git a/drivers/acpi/events/evmisc.c b/drivers/acpi/events/evmisc.c deleted file mode 100644 index 16f2c1a00167..000000000000 --- a/drivers/acpi/events/evmisc.c +++ /dev/null @@ -1,621 +0,0 @@ -/****************************************************************************** - * - * Module Name: evmisc - Miscellaneous event manager support functions - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_EVENTS -ACPI_MODULE_NAME("evmisc") - -/* Local prototypes */ -static void ACPI_SYSTEM_XFACE acpi_ev_notify_dispatch(void *context); - -static u32 acpi_ev_global_lock_handler(void *context); - -static acpi_status acpi_ev_remove_global_lock_handler(void); - -/******************************************************************************* - * - * FUNCTION: acpi_ev_is_notify_object - * - * PARAMETERS: Node - Node to check - * - * RETURN: TRUE if notifies allowed on this object - * - * DESCRIPTION: Check type of node for a object that supports notifies. - * - * TBD: This could be replaced by a flag bit in the node. - * - ******************************************************************************/ - -u8 acpi_ev_is_notify_object(struct acpi_namespace_node *node) -{ - switch (node->type) { - case ACPI_TYPE_DEVICE: - case ACPI_TYPE_PROCESSOR: - case ACPI_TYPE_THERMAL: - /* - * These are the ONLY objects that can receive ACPI notifications - */ - return (TRUE); - - default: - return (FALSE); - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_queue_notify_request - * - * PARAMETERS: Node - NS node for the notified object - * notify_value - Value from the Notify() request - * - * RETURN: Status - * - * DESCRIPTION: Dispatch a device notification event to a previously - * installed handler. - * - ******************************************************************************/ - -acpi_status -acpi_ev_queue_notify_request(struct acpi_namespace_node * node, - u32 notify_value) -{ - union acpi_operand_object *obj_desc; - union acpi_operand_object *handler_obj = NULL; - union acpi_generic_state *notify_info; - acpi_status status = AE_OK; - - ACPI_FUNCTION_NAME(ev_queue_notify_request); - - /* - * For value 3 (Ejection Request), some device method may need to be run. - * For value 2 (Device Wake) if _PRW exists, the _PS0 method may need - * to be run. - * For value 0x80 (Status Change) on the power button or sleep button, - * initiate soft-off or sleep operation? - */ - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Dispatching Notify on [%4.4s] Node %p Value 0x%2.2X (%s)\n", - acpi_ut_get_node_name(node), node, notify_value, - acpi_ut_get_notify_name(notify_value))); - - /* Get the notify object attached to the NS Node */ - - obj_desc = acpi_ns_get_attached_object(node); - if (obj_desc) { - - /* We have the notify object, Get the right handler */ - - switch (node->type) { - - /* Notify allowed only on these types */ - - case ACPI_TYPE_DEVICE: - case ACPI_TYPE_THERMAL: - case ACPI_TYPE_PROCESSOR: - - if (notify_value <= ACPI_MAX_SYS_NOTIFY) { - handler_obj = - obj_desc->common_notify.system_notify; - } else { - handler_obj = - obj_desc->common_notify.device_notify; - } - break; - - default: - - /* All other types are not supported */ - - return (AE_TYPE); - } - } - - /* - * If there is any handler to run, schedule the dispatcher. - * Check for: - * 1) Global system notify handler - * 2) Global device notify handler - * 3) Per-device notify handler - */ - if ((acpi_gbl_system_notify.handler - && (notify_value <= ACPI_MAX_SYS_NOTIFY)) - || (acpi_gbl_device_notify.handler - && (notify_value > ACPI_MAX_SYS_NOTIFY)) || handler_obj) { - notify_info = acpi_ut_create_generic_state(); - if (!notify_info) { - return (AE_NO_MEMORY); - } - - if (!handler_obj) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Executing system notify handler for Notify (%4.4s, %X) node %p\n", - acpi_ut_get_node_name(node), - notify_value, node)); - } - - notify_info->common.descriptor_type = - ACPI_DESC_TYPE_STATE_NOTIFY; - notify_info->notify.node = node; - notify_info->notify.value = (u16) notify_value; - notify_info->notify.handler_obj = handler_obj; - - status = - acpi_os_execute(OSL_NOTIFY_HANDLER, acpi_ev_notify_dispatch, - notify_info); - if (ACPI_FAILURE(status)) { - acpi_ut_delete_generic_state(notify_info); - } - } else { - /* There is no notify handler (per-device or system) for this device */ - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "No notify handler for Notify (%4.4s, %X) node %p\n", - acpi_ut_get_node_name(node), notify_value, - node)); - } - - return (status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_notify_dispatch - * - * PARAMETERS: Context - To be passed to the notify handler - * - * RETURN: None. - * - * DESCRIPTION: Dispatch a device notification event to a previously - * installed handler. - * - ******************************************************************************/ - -static void ACPI_SYSTEM_XFACE acpi_ev_notify_dispatch(void *context) -{ - union acpi_generic_state *notify_info = - (union acpi_generic_state *)context; - acpi_notify_handler global_handler = NULL; - void *global_context = NULL; - union acpi_operand_object *handler_obj; - - ACPI_FUNCTION_ENTRY(); - - /* - * We will invoke a global notify handler if installed. This is done - * _before_ we invoke the per-device handler attached to the device. - */ - if (notify_info->notify.value <= ACPI_MAX_SYS_NOTIFY) { - - /* Global system notification handler */ - - if (acpi_gbl_system_notify.handler) { - global_handler = acpi_gbl_system_notify.handler; - global_context = acpi_gbl_system_notify.context; - } - } else { - /* Global driver notification handler */ - - if (acpi_gbl_device_notify.handler) { - global_handler = acpi_gbl_device_notify.handler; - global_context = acpi_gbl_device_notify.context; - } - } - - /* Invoke the system handler first, if present */ - - if (global_handler) { - global_handler(notify_info->notify.node, - notify_info->notify.value, global_context); - } - - /* Now invoke the per-device handler, if present */ - - handler_obj = notify_info->notify.handler_obj; - if (handler_obj) { - handler_obj->notify.handler(notify_info->notify.node, - notify_info->notify.value, - handler_obj->notify.context); - } - - /* All done with the info object */ - - acpi_ut_delete_generic_state(notify_info); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_global_lock_handler - * - * PARAMETERS: Context - From thread interface, not used - * - * RETURN: ACPI_INTERRUPT_HANDLED - * - * DESCRIPTION: Invoked directly from the SCI handler when a global lock - * release interrupt occurs. Attempt to acquire the global lock, - * if successful, signal the thread waiting for the lock. - * - * NOTE: Assumes that the semaphore can be signaled from interrupt level. If - * this is not possible for some reason, a separate thread will have to be - * scheduled to do this. - * - ******************************************************************************/ - -static u32 acpi_ev_global_lock_handler(void *context) -{ - u8 acquired = FALSE; - - /* - * Attempt to get the lock. - * - * If we don't get it now, it will be marked pending and we will - * take another interrupt when it becomes free. - */ - ACPI_ACQUIRE_GLOBAL_LOCK(acpi_gbl_FACS, acquired); - if (acquired) { - - /* Got the lock, now wake all threads waiting for it */ - - acpi_gbl_global_lock_acquired = TRUE; - /* Send a unit to the semaphore */ - - if (ACPI_FAILURE - (acpi_os_signal_semaphore - (acpi_gbl_global_lock_semaphore, 1))) { - ACPI_ERROR((AE_INFO, - "Could not signal Global Lock semaphore")); - } - } - - return (ACPI_INTERRUPT_HANDLED); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_init_global_lock_handler - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Install a handler for the global lock release event - * - ******************************************************************************/ - -acpi_status acpi_ev_init_global_lock_handler(void) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_init_global_lock_handler); - - /* Attempt installation of the global lock handler */ - - status = acpi_install_fixed_event_handler(ACPI_EVENT_GLOBAL, - acpi_ev_global_lock_handler, - NULL); - - /* - * If the global lock does not exist on this platform, the attempt to - * enable GBL_STATUS will fail (the GBL_ENABLE bit will not stick). - * Map to AE_OK, but mark global lock as not present. Any attempt to - * actually use the global lock will be flagged with an error. - */ - if (status == AE_NO_HARDWARE_RESPONSE) { - ACPI_ERROR((AE_INFO, - "No response from Global Lock hardware, disabling lock")); - - acpi_gbl_global_lock_present = FALSE; - return_ACPI_STATUS(AE_OK); - } - - acpi_gbl_global_lock_present = TRUE; - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_remove_global_lock_handler - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Remove the handler for the Global Lock - * - ******************************************************************************/ - -static acpi_status acpi_ev_remove_global_lock_handler(void) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_remove_global_lock_handler); - - acpi_gbl_global_lock_present = FALSE; - status = acpi_remove_fixed_event_handler(ACPI_EVENT_GLOBAL, - acpi_ev_global_lock_handler); - - return_ACPI_STATUS(status); -} - -/****************************************************************************** - * - * FUNCTION: acpi_ev_acquire_global_lock - * - * PARAMETERS: Timeout - Max time to wait for the lock, in millisec. - * - * RETURN: Status - * - * DESCRIPTION: Attempt to gain ownership of the Global Lock. - * - * MUTEX: Interpreter must be locked - * - * Note: The original implementation allowed multiple threads to "acquire" the - * Global Lock, and the OS would hold the lock until the last thread had - * released it. However, this could potentially starve the BIOS out of the - * lock, especially in the case where there is a tight handshake between the - * Embedded Controller driver and the BIOS. Therefore, this implementation - * allows only one thread to acquire the HW Global Lock at a time, and makes - * the global lock appear as a standard mutex on the OS side. - * - *****************************************************************************/ -static acpi_thread_id acpi_ev_global_lock_thread_id; -static int acpi_ev_global_lock_acquired; - -acpi_status acpi_ev_acquire_global_lock(u16 timeout) -{ - acpi_status status = AE_OK; - u8 acquired = FALSE; - - ACPI_FUNCTION_TRACE(ev_acquire_global_lock); - - /* - * Only one thread can acquire the GL at a time, the global_lock_mutex - * enforces this. This interface releases the interpreter if we must wait. - */ - status = acpi_ex_system_wait_mutex( - acpi_gbl_global_lock_mutex->mutex.os_mutex, 0); - if (status == AE_TIME) { - if (acpi_ev_global_lock_thread_id == acpi_os_get_thread_id()) { - acpi_ev_global_lock_acquired++; - return AE_OK; - } - } - - if (ACPI_FAILURE(status)) { - status = acpi_ex_system_wait_mutex( - acpi_gbl_global_lock_mutex->mutex.os_mutex, - timeout); - } - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - acpi_ev_global_lock_thread_id = acpi_os_get_thread_id(); - acpi_ev_global_lock_acquired++; - - /* - * Update the global lock handle and check for wraparound. The handle is - * only used for the external global lock interfaces, but it is updated - * here to properly handle the case where a single thread may acquire the - * lock via both the AML and the acpi_acquire_global_lock interfaces. The - * handle is therefore updated on the first acquire from a given thread - * regardless of where the acquisition request originated. - */ - acpi_gbl_global_lock_handle++; - if (acpi_gbl_global_lock_handle == 0) { - acpi_gbl_global_lock_handle = 1; - } - - /* - * Make sure that a global lock actually exists. If not, just treat the - * lock as a standard mutex. - */ - if (!acpi_gbl_global_lock_present) { - acpi_gbl_global_lock_acquired = TRUE; - return_ACPI_STATUS(AE_OK); - } - - /* Attempt to acquire the actual hardware lock */ - - ACPI_ACQUIRE_GLOBAL_LOCK(acpi_gbl_FACS, acquired); - if (acquired) { - - /* We got the lock */ - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Acquired hardware Global Lock\n")); - - acpi_gbl_global_lock_acquired = TRUE; - return_ACPI_STATUS(AE_OK); - } - - /* - * Did not get the lock. The pending bit was set above, and we must now - * wait until we get the global lock released interrupt. - */ - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Waiting for hardware Global Lock\n")); - - /* - * Wait for handshake with the global lock interrupt handler. - * This interface releases the interpreter if we must wait. - */ - status = acpi_ex_system_wait_semaphore(acpi_gbl_global_lock_semaphore, - ACPI_WAIT_FOREVER); - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_release_global_lock - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Releases ownership of the Global Lock. - * - ******************************************************************************/ - -acpi_status acpi_ev_release_global_lock(void) -{ - u8 pending = FALSE; - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(ev_release_global_lock); - - /* Lock must be already acquired */ - - if (!acpi_gbl_global_lock_acquired) { - ACPI_WARNING((AE_INFO, - "Cannot release the ACPI Global Lock, it has not been acquired")); - return_ACPI_STATUS(AE_NOT_ACQUIRED); - } - - acpi_ev_global_lock_acquired--; - if (acpi_ev_global_lock_acquired > 0) { - return AE_OK; - } - - if (acpi_gbl_global_lock_present) { - - /* Allow any thread to release the lock */ - - ACPI_RELEASE_GLOBAL_LOCK(acpi_gbl_FACS, pending); - - /* - * If the pending bit was set, we must write GBL_RLS to the control - * register - */ - if (pending) { - status = - acpi_set_register(ACPI_BITREG_GLOBAL_LOCK_RELEASE, - 1); - } - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Released hardware Global Lock\n")); - } - - acpi_gbl_global_lock_acquired = FALSE; - - /* Release the local GL mutex */ - acpi_ev_global_lock_thread_id = NULL; - acpi_ev_global_lock_acquired = 0; - acpi_os_release_mutex(acpi_gbl_global_lock_mutex->mutex.os_mutex); - return_ACPI_STATUS(status); -} - -/****************************************************************************** - * - * FUNCTION: acpi_ev_terminate - * - * PARAMETERS: none - * - * RETURN: none - * - * DESCRIPTION: Disable events and free memory allocated for table storage. - * - ******************************************************************************/ - -void acpi_ev_terminate(void) -{ - u32 i; - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_terminate); - - if (acpi_gbl_events_initialized) { - /* - * Disable all event-related functionality. In all cases, on error, - * print a message but obviously we don't abort. - */ - - /* Disable all fixed events */ - - for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) { - status = acpi_disable_event(i, 0); - if (ACPI_FAILURE(status)) { - ACPI_ERROR((AE_INFO, - "Could not disable fixed event %d", - (u32) i)); - } - } - - /* Disable all GPEs in all GPE blocks */ - - status = acpi_ev_walk_gpe_list(acpi_hw_disable_gpe_block, NULL); - - /* Remove SCI handler */ - - status = acpi_ev_remove_sci_handler(); - if (ACPI_FAILURE(status)) { - ACPI_ERROR((AE_INFO, "Could not remove SCI handler")); - } - - status = acpi_ev_remove_global_lock_handler(); - if (ACPI_FAILURE(status)) { - ACPI_ERROR((AE_INFO, - "Could not remove Global Lock handler")); - } - } - - /* Deallocate all handler objects installed within GPE info structs */ - - status = acpi_ev_walk_gpe_list(acpi_ev_delete_gpe_handlers, NULL); - - /* Return to original mode if necessary */ - - if (acpi_gbl_original_mode == ACPI_SYS_MODE_LEGACY) { - status = acpi_disable(); - if (ACPI_FAILURE(status)) { - ACPI_WARNING((AE_INFO, "AcpiDisable failed")); - } - } - return_VOID; -} diff --git a/drivers/acpi/events/evregion.c b/drivers/acpi/events/evregion.c deleted file mode 100644 index 7346093f43ed..000000000000 --- a/drivers/acpi/events/evregion.c +++ /dev/null @@ -1,1070 +0,0 @@ -/****************************************************************************** - * - * Module Name: evregion - ACPI address_space (op_region) handler dispatch - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_EVENTS -ACPI_MODULE_NAME("evregion") - -/* Local prototypes */ -static acpi_status -acpi_ev_reg_run(acpi_handle obj_handle, - u32 level, void *context, void **return_value); - -static acpi_status -acpi_ev_install_handler(acpi_handle obj_handle, - u32 level, void *context, void **return_value); - -/* These are the address spaces that will get default handlers */ - -#define ACPI_NUM_DEFAULT_SPACES 4 - -static u8 acpi_gbl_default_address_spaces[ACPI_NUM_DEFAULT_SPACES] = { - ACPI_ADR_SPACE_SYSTEM_MEMORY, - ACPI_ADR_SPACE_SYSTEM_IO, - ACPI_ADR_SPACE_PCI_CONFIG, - ACPI_ADR_SPACE_DATA_TABLE -}; - -/******************************************************************************* - * - * FUNCTION: acpi_ev_install_region_handlers - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Installs the core subsystem default address space handlers. - * - ******************************************************************************/ - -acpi_status acpi_ev_install_region_handlers(void) -{ - acpi_status status; - u32 i; - - ACPI_FUNCTION_TRACE(ev_install_region_handlers); - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * All address spaces (PCI Config, EC, SMBus) are scope dependent and - * registration must occur for a specific device. - * - * In the case of the system memory and IO address spaces there is - * currently no device associated with the address space. For these we - * use the root. - * - * We install the default PCI config space handler at the root so that - * this space is immediately available even though the we have not - * enumerated all the PCI Root Buses yet. This is to conform to the ACPI - * specification which states that the PCI config space must be always - * available -- even though we are nowhere near ready to find the PCI root - * buses at this point. - * - * NOTE: We ignore AE_ALREADY_EXISTS because this means that a handler - * has already been installed (via acpi_install_address_space_handler). - * Similar for AE_SAME_HANDLER. - */ - for (i = 0; i < ACPI_NUM_DEFAULT_SPACES; i++) { - status = acpi_ev_install_space_handler(acpi_gbl_root_node, - acpi_gbl_default_address_spaces - [i], - ACPI_DEFAULT_HANDLER, - NULL, NULL); - switch (status) { - case AE_OK: - case AE_SAME_HANDLER: - case AE_ALREADY_EXISTS: - - /* These exceptions are all OK */ - - status = AE_OK; - break; - - default: - - goto unlock_and_exit; - } - } - - unlock_and_exit: - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_initialize_op_regions - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Execute _REG methods for all Operation Regions that have - * an installed default region handler. - * - ******************************************************************************/ - -acpi_status acpi_ev_initialize_op_regions(void) -{ - acpi_status status; - u32 i; - - ACPI_FUNCTION_TRACE(ev_initialize_op_regions); - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Run the _REG methods for op_regions in each default address space */ - - for (i = 0; i < ACPI_NUM_DEFAULT_SPACES; i++) { - /* - * TBD: Make sure handler is the DEFAULT handler, otherwise - * _REG will have already been run. - */ - status = acpi_ev_execute_reg_methods(acpi_gbl_root_node, - acpi_gbl_default_address_spaces - [i]); - } - - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_execute_reg_method - * - * PARAMETERS: region_obj - Region object - * Function - Passed to _REG: On (1) or Off (0) - * - * RETURN: Status - * - * DESCRIPTION: Execute _REG method for a region - * - ******************************************************************************/ - -acpi_status -acpi_ev_execute_reg_method(union acpi_operand_object *region_obj, u32 function) -{ - struct acpi_evaluate_info *info; - union acpi_operand_object *args[3]; - union acpi_operand_object *region_obj2; - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_execute_reg_method); - - region_obj2 = acpi_ns_get_secondary_object(region_obj); - if (!region_obj2) { - return_ACPI_STATUS(AE_NOT_EXIST); - } - - if (region_obj2->extra.method_REG == NULL) { - return_ACPI_STATUS(AE_OK); - } - - /* Allocate and initialize the evaluation information block */ - - info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info)); - if (!info) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - info->prefix_node = region_obj2->extra.method_REG; - info->pathname = NULL; - info->parameters = args; - info->flags = ACPI_IGNORE_RETURN_VALUE; - - /* - * The _REG method has two arguments: - * - * Arg0 - Integer: - * Operation region space ID Same value as region_obj->Region.space_id - * - * Arg1 - Integer: - * connection status 1 for connecting the handler, 0 for disconnecting - * the handler (Passed as a parameter) - */ - args[0] = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); - if (!args[0]) { - status = AE_NO_MEMORY; - goto cleanup1; - } - - args[1] = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); - if (!args[1]) { - status = AE_NO_MEMORY; - goto cleanup2; - } - - /* Setup the parameter objects */ - - args[0]->integer.value = region_obj->region.space_id; - args[1]->integer.value = function; - args[2] = NULL; - - /* Execute the method, no return value */ - - ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname - (ACPI_TYPE_METHOD, info->prefix_node, NULL)); - - status = acpi_ns_evaluate(info); - acpi_ut_remove_reference(args[1]); - - cleanup2: - acpi_ut_remove_reference(args[0]); - - cleanup1: - ACPI_FREE(info); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_address_space_dispatch - * - * PARAMETERS: region_obj - Internal region object - * Function - Read or Write operation - * Address - Where in the space to read or write - * bit_width - Field width in bits (8, 16, 32, or 64) - * Value - Pointer to in or out value, must be - * full 64-bit acpi_integer - * - * RETURN: Status - * - * DESCRIPTION: Dispatch an address space or operation region access to - * a previously installed handler. - * - ******************************************************************************/ - -acpi_status -acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj, - u32 function, - acpi_physical_address address, - u32 bit_width, acpi_integer * value) -{ - acpi_status status; - acpi_adr_space_handler handler; - acpi_adr_space_setup region_setup; - union acpi_operand_object *handler_desc; - union acpi_operand_object *region_obj2; - void *region_context = NULL; - - ACPI_FUNCTION_TRACE(ev_address_space_dispatch); - - region_obj2 = acpi_ns_get_secondary_object(region_obj); - if (!region_obj2) { - return_ACPI_STATUS(AE_NOT_EXIST); - } - - /* Ensure that there is a handler associated with this region */ - - handler_desc = region_obj->region.handler; - if (!handler_desc) { - ACPI_ERROR((AE_INFO, - "No handler for Region [%4.4s] (%p) [%s]", - acpi_ut_get_node_name(region_obj->region.node), - region_obj, - acpi_ut_get_region_name(region_obj->region. - space_id))); - - return_ACPI_STATUS(AE_NOT_EXIST); - } - - /* - * It may be the case that the region has never been initialized. - * Some types of regions require special init code - */ - if (!(region_obj->region.flags & AOPOBJ_SETUP_COMPLETE)) { - - /* This region has not been initialized yet, do it */ - - region_setup = handler_desc->address_space.setup; - if (!region_setup) { - - /* No initialization routine, exit with error */ - - ACPI_ERROR((AE_INFO, - "No init routine for region(%p) [%s]", - region_obj, - acpi_ut_get_region_name(region_obj->region. - space_id))); - return_ACPI_STATUS(AE_NOT_EXIST); - } - - /* - * We must exit the interpreter because the region setup will - * potentially execute control methods (for example, the _REG method - * for this region) - */ - acpi_ex_exit_interpreter(); - - status = region_setup(region_obj, ACPI_REGION_ACTIVATE, - handler_desc->address_space.context, - ®ion_context); - - /* Re-enter the interpreter */ - - acpi_ex_enter_interpreter(); - - /* Check for failure of the Region Setup */ - - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "During region initialization: [%s]", - acpi_ut_get_region_name(region_obj-> - region. - space_id))); - return_ACPI_STATUS(status); - } - - /* Region initialization may have been completed by region_setup */ - - if (!(region_obj->region.flags & AOPOBJ_SETUP_COMPLETE)) { - region_obj->region.flags |= AOPOBJ_SETUP_COMPLETE; - - if (region_obj2->extra.region_context) { - - /* The handler for this region was already installed */ - - ACPI_FREE(region_context); - } else { - /* - * Save the returned context for use in all accesses to - * this particular region - */ - region_obj2->extra.region_context = - region_context; - } - } - } - - /* We have everything we need, we can invoke the address space handler */ - - handler = handler_desc->address_space.handler; - - ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, - "Handler %p (@%p) Address %8.8X%8.8X [%s]\n", - ®ion_obj->region.handler->address_space, handler, - ACPI_FORMAT_NATIVE_UINT(address), - acpi_ut_get_region_name(region_obj->region. - space_id))); - - if (!(handler_desc->address_space.handler_flags & - ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)) { - /* - * For handlers other than the default (supplied) handlers, we must - * exit the interpreter because the handler *might* block -- we don't - * know what it will do, so we can't hold the lock on the intepreter. - */ - acpi_ex_exit_interpreter(); - } - - /* Call the handler */ - - status = handler(function, address, bit_width, value, - handler_desc->address_space.context, - region_obj2->extra.region_context); - - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, "Returned by Handler for [%s]", - acpi_ut_get_region_name(region_obj->region. - space_id))); - } - - if (!(handler_desc->address_space.handler_flags & - ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)) { - /* - * We just returned from a non-default handler, we must re-enter the - * interpreter - */ - acpi_ex_enter_interpreter(); - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_detach_region - * - * PARAMETERS: region_obj - Region Object - * acpi_ns_is_locked - Namespace Region Already Locked? - * - * RETURN: None - * - * DESCRIPTION: Break the association between the handler and the region - * this is a two way association. - * - ******************************************************************************/ - -void -acpi_ev_detach_region(union acpi_operand_object *region_obj, - u8 acpi_ns_is_locked) -{ - union acpi_operand_object *handler_obj; - union acpi_operand_object *obj_desc; - union acpi_operand_object **last_obj_ptr; - acpi_adr_space_setup region_setup; - void **region_context; - union acpi_operand_object *region_obj2; - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_detach_region); - - region_obj2 = acpi_ns_get_secondary_object(region_obj); - if (!region_obj2) { - return_VOID; - } - region_context = ®ion_obj2->extra.region_context; - - /* Get the address handler from the region object */ - - handler_obj = region_obj->region.handler; - if (!handler_obj) { - - /* This region has no handler, all done */ - - return_VOID; - } - - /* Find this region in the handler's list */ - - obj_desc = handler_obj->address_space.region_list; - last_obj_ptr = &handler_obj->address_space.region_list; - - while (obj_desc) { - - /* Is this the correct Region? */ - - if (obj_desc == region_obj) { - ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, - "Removing Region %p from address handler %p\n", - region_obj, handler_obj)); - - /* This is it, remove it from the handler's list */ - - *last_obj_ptr = obj_desc->region.next; - obj_desc->region.next = NULL; /* Must clear field */ - - if (acpi_ns_is_locked) { - status = - acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return_VOID; - } - } - - /* Now stop region accesses by executing the _REG method */ - - status = acpi_ev_execute_reg_method(region_obj, 0); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "from region _REG, [%s]", - acpi_ut_get_region_name - (region_obj->region.space_id))); - } - - if (acpi_ns_is_locked) { - status = - acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return_VOID; - } - } - - /* - * If the region has been activated, call the setup handler with - * the deactivate notification - */ - if (region_obj->region.flags & AOPOBJ_SETUP_COMPLETE) { - region_setup = handler_obj->address_space.setup; - status = - region_setup(region_obj, - ACPI_REGION_DEACTIVATE, - handler_obj->address_space. - context, region_context); - - /* Init routine may fail, Just ignore errors */ - - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "from region handler - deactivate, [%s]", - acpi_ut_get_region_name - (region_obj->region. - space_id))); - } - - region_obj->region.flags &= - ~(AOPOBJ_SETUP_COMPLETE); - } - - /* - * Remove handler reference in the region - * - * NOTE: this doesn't mean that the region goes away, the region - * is just inaccessible as indicated to the _REG method - * - * If the region is on the handler's list, this must be the - * region's handler - */ - region_obj->region.handler = NULL; - acpi_ut_remove_reference(handler_obj); - - return_VOID; - } - - /* Walk the linked list of handlers */ - - last_obj_ptr = &obj_desc->region.next; - obj_desc = obj_desc->region.next; - } - - /* If we get here, the region was not in the handler's region list */ - - ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, - "Cannot remove region %p from address handler %p\n", - region_obj, handler_obj)); - - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_attach_region - * - * PARAMETERS: handler_obj - Handler Object - * region_obj - Region Object - * acpi_ns_is_locked - Namespace Region Already Locked? - * - * RETURN: None - * - * DESCRIPTION: Create the association between the handler and the region - * this is a two way association. - * - ******************************************************************************/ - -acpi_status -acpi_ev_attach_region(union acpi_operand_object *handler_obj, - union acpi_operand_object *region_obj, - u8 acpi_ns_is_locked) -{ - - ACPI_FUNCTION_TRACE(ev_attach_region); - - ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, - "Adding Region [%4.4s] %p to address handler %p [%s]\n", - acpi_ut_get_node_name(region_obj->region.node), - region_obj, handler_obj, - acpi_ut_get_region_name(region_obj->region. - space_id))); - - /* Link this region to the front of the handler's list */ - - region_obj->region.next = handler_obj->address_space.region_list; - handler_obj->address_space.region_list = region_obj; - - /* Install the region's handler */ - - if (region_obj->region.handler) { - return_ACPI_STATUS(AE_ALREADY_EXISTS); - } - - region_obj->region.handler = handler_obj; - acpi_ut_add_reference(handler_obj); - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_install_handler - * - * PARAMETERS: walk_namespace callback - * - * DESCRIPTION: This routine installs an address handler into objects that are - * of type Region or Device. - * - * If the Object is a Device, and the device has a handler of - * the same type then the search is terminated in that branch. - * - * This is because the existing handler is closer in proximity - * to any more regions than the one we are trying to install. - * - ******************************************************************************/ - -static acpi_status -acpi_ev_install_handler(acpi_handle obj_handle, - u32 level, void *context, void **return_value) -{ - union acpi_operand_object *handler_obj; - union acpi_operand_object *next_handler_obj; - union acpi_operand_object *obj_desc; - struct acpi_namespace_node *node; - acpi_status status; - - ACPI_FUNCTION_NAME(ev_install_handler); - - handler_obj = (union acpi_operand_object *)context; - - /* Parameter validation */ - - if (!handler_obj) { - return (AE_OK); - } - - /* Convert and validate the device handle */ - - node = acpi_ns_map_handle_to_node(obj_handle); - if (!node) { - return (AE_BAD_PARAMETER); - } - - /* - * We only care about regions and objects that are allowed to have - * address space handlers - */ - if ((node->type != ACPI_TYPE_DEVICE) && - (node->type != ACPI_TYPE_REGION) && (node != acpi_gbl_root_node)) { - return (AE_OK); - } - - /* Check for an existing internal object */ - - obj_desc = acpi_ns_get_attached_object(node); - if (!obj_desc) { - - /* No object, just exit */ - - return (AE_OK); - } - - /* Devices are handled different than regions */ - - if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_DEVICE) { - - /* Check if this Device already has a handler for this address space */ - - next_handler_obj = obj_desc->device.handler; - while (next_handler_obj) { - - /* Found a handler, is it for the same address space? */ - - if (next_handler_obj->address_space.space_id == - handler_obj->address_space.space_id) { - ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, - "Found handler for region [%s] in device %p(%p) handler %p\n", - acpi_ut_get_region_name - (handler_obj->address_space. - space_id), obj_desc, - next_handler_obj, - handler_obj)); - - /* - * Since the object we found it on was a device, then it - * means that someone has already installed a handler for - * the branch of the namespace from this device on. Just - * bail out telling the walk routine to not traverse this - * branch. This preserves the scoping rule for handlers. - */ - return (AE_CTRL_DEPTH); - } - - /* Walk the linked list of handlers attached to this device */ - - next_handler_obj = next_handler_obj->address_space.next; - } - - /* - * As long as the device didn't have a handler for this space we - * don't care about it. We just ignore it and proceed. - */ - return (AE_OK); - } - - /* Object is a Region */ - - if (obj_desc->region.space_id != handler_obj->address_space.space_id) { - - /* This region is for a different address space, just ignore it */ - - return (AE_OK); - } - - /* - * Now we have a region and it is for the handler's address space type. - * - * First disconnect region for any previous handler (if any) - */ - acpi_ev_detach_region(obj_desc, FALSE); - - /* Connect the region to the new handler */ - - status = acpi_ev_attach_region(handler_obj, obj_desc, FALSE); - return (status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_install_space_handler - * - * PARAMETERS: Node - Namespace node for the device - * space_id - The address space ID - * Handler - Address of the handler - * Setup - Address of the setup function - * Context - Value passed to the handler on each access - * - * RETURN: Status - * - * DESCRIPTION: Install a handler for all op_regions of a given space_id. - * Assumes namespace is locked - * - ******************************************************************************/ - -acpi_status -acpi_ev_install_space_handler(struct acpi_namespace_node * node, - acpi_adr_space_type space_id, - acpi_adr_space_handler handler, - acpi_adr_space_setup setup, void *context) -{ - union acpi_operand_object *obj_desc; - union acpi_operand_object *handler_obj; - acpi_status status; - acpi_object_type type; - u8 flags = 0; - - ACPI_FUNCTION_TRACE(ev_install_space_handler); - - /* - * This registration is valid for only the types below and the root. This - * is where the default handlers get placed. - */ - if ((node->type != ACPI_TYPE_DEVICE) && - (node->type != ACPI_TYPE_PROCESSOR) && - (node->type != ACPI_TYPE_THERMAL) && (node != acpi_gbl_root_node)) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - if (handler == ACPI_DEFAULT_HANDLER) { - flags = ACPI_ADDR_HANDLER_DEFAULT_INSTALLED; - - switch (space_id) { - case ACPI_ADR_SPACE_SYSTEM_MEMORY: - handler = acpi_ex_system_memory_space_handler; - setup = acpi_ev_system_memory_region_setup; - break; - - case ACPI_ADR_SPACE_SYSTEM_IO: - handler = acpi_ex_system_io_space_handler; - setup = acpi_ev_io_space_region_setup; - break; - - case ACPI_ADR_SPACE_PCI_CONFIG: - handler = acpi_ex_pci_config_space_handler; - setup = acpi_ev_pci_config_region_setup; - break; - - case ACPI_ADR_SPACE_CMOS: - handler = acpi_ex_cmos_space_handler; - setup = acpi_ev_cmos_region_setup; - break; - - case ACPI_ADR_SPACE_PCI_BAR_TARGET: - handler = acpi_ex_pci_bar_space_handler; - setup = acpi_ev_pci_bar_region_setup; - break; - - case ACPI_ADR_SPACE_DATA_TABLE: - handler = acpi_ex_data_table_space_handler; - setup = NULL; - break; - - default: - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - } - - /* If the caller hasn't specified a setup routine, use the default */ - - if (!setup) { - setup = acpi_ev_default_region_setup; - } - - /* Check for an existing internal object */ - - obj_desc = acpi_ns_get_attached_object(node); - if (obj_desc) { - /* - * The attached device object already exists. Make sure the handler - * is not already installed. - */ - handler_obj = obj_desc->device.handler; - - /* Walk the handler list for this device */ - - while (handler_obj) { - - /* Same space_id indicates a handler already installed */ - - if (handler_obj->address_space.space_id == space_id) { - if (handler_obj->address_space.handler == - handler) { - /* - * It is (relatively) OK to attempt to install the SAME - * handler twice. This can easily happen with the - * PCI_Config space. - */ - status = AE_SAME_HANDLER; - goto unlock_and_exit; - } else { - /* A handler is already installed */ - - status = AE_ALREADY_EXISTS; - } - goto unlock_and_exit; - } - - /* Walk the linked list of handlers */ - - handler_obj = handler_obj->address_space.next; - } - } else { - ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, - "Creating object on Device %p while installing handler\n", - node)); - - /* obj_desc does not exist, create one */ - - if (node->type == ACPI_TYPE_ANY) { - type = ACPI_TYPE_DEVICE; - } else { - type = node->type; - } - - obj_desc = acpi_ut_create_internal_object(type); - if (!obj_desc) { - status = AE_NO_MEMORY; - goto unlock_and_exit; - } - - /* Init new descriptor */ - - obj_desc->common.type = (u8) type; - - /* Attach the new object to the Node */ - - status = acpi_ns_attach_object(node, obj_desc, type); - - /* Remove local reference to the object */ - - acpi_ut_remove_reference(obj_desc); - - if (ACPI_FAILURE(status)) { - goto unlock_and_exit; - } - } - - ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, - "Installing address handler for region %s(%X) on Device %4.4s %p(%p)\n", - acpi_ut_get_region_name(space_id), space_id, - acpi_ut_get_node_name(node), node, obj_desc)); - - /* - * Install the handler - * - * At this point there is no existing handler. Just allocate the object - * for the handler and link it into the list. - */ - handler_obj = - acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_ADDRESS_HANDLER); - if (!handler_obj) { - status = AE_NO_MEMORY; - goto unlock_and_exit; - } - - /* Init handler obj */ - - handler_obj->address_space.space_id = (u8) space_id; - handler_obj->address_space.handler_flags = flags; - handler_obj->address_space.region_list = NULL; - handler_obj->address_space.node = node; - handler_obj->address_space.handler = handler; - handler_obj->address_space.context = context; - handler_obj->address_space.setup = setup; - - /* Install at head of Device.address_space list */ - - handler_obj->address_space.next = obj_desc->device.handler; - - /* - * The Device object is the first reference on the handler_obj. - * Each region that uses the handler adds a reference. - */ - obj_desc->device.handler = handler_obj; - - /* - * Walk the namespace finding all of the regions this - * handler will manage. - * - * Start at the device and search the branch toward - * the leaf nodes until either the leaf is encountered or - * a device is detected that has an address handler of the - * same type. - * - * In either case, back up and search down the remainder - * of the branch - */ - status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, node, ACPI_UINT32_MAX, - ACPI_NS_WALK_UNLOCK, - acpi_ev_install_handler, handler_obj, - NULL); - - unlock_and_exit: - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_execute_reg_methods - * - * PARAMETERS: Node - Namespace node for the device - * space_id - The address space ID - * - * RETURN: Status - * - * DESCRIPTION: Run all _REG methods for the input Space ID; - * Note: assumes namespace is locked, or system init time. - * - ******************************************************************************/ - -acpi_status -acpi_ev_execute_reg_methods(struct acpi_namespace_node *node, - acpi_adr_space_type space_id) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_execute_reg_methods); - - /* - * Run all _REG methods for all Operation Regions for this space ID. This - * is a separate walk in order to handle any interdependencies between - * regions and _REG methods. (i.e. handlers must be installed for all - * regions of this Space ID before we can run any _REG methods) - */ - status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, node, ACPI_UINT32_MAX, - ACPI_NS_WALK_UNLOCK, acpi_ev_reg_run, - &space_id, NULL); - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_reg_run - * - * PARAMETERS: walk_namespace callback - * - * DESCRIPTION: Run _REG method for region objects of the requested space_iD - * - ******************************************************************************/ - -static acpi_status -acpi_ev_reg_run(acpi_handle obj_handle, - u32 level, void *context, void **return_value) -{ - union acpi_operand_object *obj_desc; - struct acpi_namespace_node *node; - acpi_adr_space_type space_id; - acpi_status status; - - space_id = *ACPI_CAST_PTR(acpi_adr_space_type, context); - - /* Convert and validate the device handle */ - - node = acpi_ns_map_handle_to_node(obj_handle); - if (!node) { - return (AE_BAD_PARAMETER); - } - - /* - * We only care about regions.and objects that are allowed to have address - * space handlers - */ - if ((node->type != ACPI_TYPE_REGION) && (node != acpi_gbl_root_node)) { - return (AE_OK); - } - - /* Check for an existing internal object */ - - obj_desc = acpi_ns_get_attached_object(node); - if (!obj_desc) { - - /* No object, just exit */ - - return (AE_OK); - } - - /* Object is a Region */ - - if (obj_desc->region.space_id != space_id) { - - /* This region is for a different address space, just ignore it */ - - return (AE_OK); - } - - status = acpi_ev_execute_reg_method(obj_desc, 1); - return (status); -} diff --git a/drivers/acpi/events/evrgnini.c b/drivers/acpi/events/evrgnini.c deleted file mode 100644 index 1b7f9fdbef15..000000000000 --- a/drivers/acpi/events/evrgnini.c +++ /dev/null @@ -1,684 +0,0 @@ -/****************************************************************************** - * - * Module Name: evrgnini- ACPI address_space (op_region) init - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include - -#define _COMPONENT ACPI_EVENTS -ACPI_MODULE_NAME("evrgnini") - -/* Local prototypes */ -static u8 acpi_ev_match_pci_root_bridge(char *id); - -static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node); - -/******************************************************************************* - * - * FUNCTION: acpi_ev_system_memory_region_setup - * - * PARAMETERS: Handle - Region we are interested in - * Function - Start or stop - * handler_context - Address space handler context - * region_context - Region specific context - * - * RETURN: Status - * - * DESCRIPTION: Setup a system_memory operation region - * - ******************************************************************************/ - -acpi_status -acpi_ev_system_memory_region_setup(acpi_handle handle, - u32 function, - void *handler_context, void **region_context) -{ - union acpi_operand_object *region_desc = - (union acpi_operand_object *)handle; - struct acpi_mem_space_context *local_region_context; - - ACPI_FUNCTION_TRACE(ev_system_memory_region_setup); - - if (function == ACPI_REGION_DEACTIVATE) { - if (*region_context) { - local_region_context = - (struct acpi_mem_space_context *)*region_context; - - /* Delete a cached mapping if present */ - - if (local_region_context->mapped_length) { - acpi_os_unmap_memory(local_region_context-> - mapped_logical_address, - local_region_context-> - mapped_length); - } - ACPI_FREE(local_region_context); - *region_context = NULL; - } - return_ACPI_STATUS(AE_OK); - } - - /* Create a new context */ - - local_region_context = - ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_mem_space_context)); - if (!(local_region_context)) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Save the region length and address for use in the handler */ - - local_region_context->length = region_desc->region.length; - local_region_context->address = region_desc->region.address; - - *region_context = local_region_context; - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_io_space_region_setup - * - * PARAMETERS: Handle - Region we are interested in - * Function - Start or stop - * handler_context - Address space handler context - * region_context - Region specific context - * - * RETURN: Status - * - * DESCRIPTION: Setup a IO operation region - * - ******************************************************************************/ - -acpi_status -acpi_ev_io_space_region_setup(acpi_handle handle, - u32 function, - void *handler_context, void **region_context) -{ - ACPI_FUNCTION_TRACE(ev_io_space_region_setup); - - if (function == ACPI_REGION_DEACTIVATE) { - *region_context = NULL; - } else { - *region_context = handler_context; - } - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_pci_config_region_setup - * - * PARAMETERS: Handle - Region we are interested in - * Function - Start or stop - * handler_context - Address space handler context - * region_context - Region specific context - * - * RETURN: Status - * - * DESCRIPTION: Setup a PCI_Config operation region - * - * MUTEX: Assumes namespace is not locked - * - ******************************************************************************/ - -acpi_status -acpi_ev_pci_config_region_setup(acpi_handle handle, - u32 function, - void *handler_context, void **region_context) -{ - acpi_status status = AE_OK; - acpi_integer pci_value; - struct acpi_pci_id *pci_id = *region_context; - union acpi_operand_object *handler_obj; - struct acpi_namespace_node *parent_node; - struct acpi_namespace_node *pci_root_node; - struct acpi_namespace_node *pci_device_node; - union acpi_operand_object *region_obj = - (union acpi_operand_object *)handle; - - ACPI_FUNCTION_TRACE(ev_pci_config_region_setup); - - handler_obj = region_obj->region.handler; - if (!handler_obj) { - /* - * No installed handler. This shouldn't happen because the dispatch - * routine checks before we get here, but we check again just in case. - */ - ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, - "Attempting to init a region %p, with no handler\n", - region_obj)); - return_ACPI_STATUS(AE_NOT_EXIST); - } - - *region_context = NULL; - if (function == ACPI_REGION_DEACTIVATE) { - if (pci_id) { - ACPI_FREE(pci_id); - } - return_ACPI_STATUS(status); - } - - parent_node = acpi_ns_get_parent_node(region_obj->region.node); - - /* - * Get the _SEG and _BBN values from the device upon which the handler - * is installed. - * - * We need to get the _SEG and _BBN objects relative to the PCI BUS device. - * This is the device the handler has been registered to handle. - */ - - /* - * If the address_space.Node is still pointing to the root, we need - * to scan upward for a PCI Root bridge and re-associate the op_region - * handlers with that device. - */ - if (handler_obj->address_space.node == acpi_gbl_root_node) { - - /* Start search from the parent object */ - - pci_root_node = parent_node; - while (pci_root_node != acpi_gbl_root_node) { - - /* Get the _HID/_CID in order to detect a root_bridge */ - - if (acpi_ev_is_pci_root_bridge(pci_root_node)) { - - /* Install a handler for this PCI root bridge */ - - status = - acpi_install_address_space_handler((acpi_handle) pci_root_node, ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL); - if (ACPI_FAILURE(status)) { - if (status == AE_SAME_HANDLER) { - /* - * It is OK if the handler is already installed on the - * root bridge. Still need to return a context object - * for the new PCI_Config operation region, however. - */ - status = AE_OK; - } else { - ACPI_EXCEPTION((AE_INFO, status, - "Could not install PciConfig handler for Root Bridge %4.4s", - acpi_ut_get_node_name - (pci_root_node))); - } - } - break; - } - - pci_root_node = acpi_ns_get_parent_node(pci_root_node); - } - - /* PCI root bridge not found, use namespace root node */ - } else { - pci_root_node = handler_obj->address_space.node; - } - - /* - * If this region is now initialized, we are done. - * (install_address_space_handler could have initialized it) - */ - if (region_obj->region.flags & AOPOBJ_SETUP_COMPLETE) { - return_ACPI_STATUS(AE_OK); - } - - /* Region is still not initialized. Create a new context */ - - pci_id = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_pci_id)); - if (!pci_id) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* - * For PCI_Config space access, we need the segment, bus, device and - * function numbers. Acquire them here. - * - * Find the parent device object. (This allows the operation region to be - * within a subscope under the device, such as a control method.) - */ - pci_device_node = region_obj->region.node; - while (pci_device_node && (pci_device_node->type != ACPI_TYPE_DEVICE)) { - pci_device_node = acpi_ns_get_parent_node(pci_device_node); - } - - if (!pci_device_node) { - ACPI_FREE(pci_id); - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - - /* - * Get the PCI device and function numbers from the _ADR object contained - * in the parent's scope. - */ - status = - acpi_ut_evaluate_numeric_object(METHOD_NAME__ADR, pci_device_node, - &pci_value); - - /* - * The default is zero, and since the allocation above zeroed the data, - * just do nothing on failure. - */ - if (ACPI_SUCCESS(status)) { - pci_id->device = ACPI_HIWORD(ACPI_LODWORD(pci_value)); - pci_id->function = ACPI_LOWORD(ACPI_LODWORD(pci_value)); - } - - /* The PCI segment number comes from the _SEG method */ - - status = - acpi_ut_evaluate_numeric_object(METHOD_NAME__SEG, pci_root_node, - &pci_value); - if (ACPI_SUCCESS(status)) { - pci_id->segment = ACPI_LOWORD(pci_value); - } - - /* The PCI bus number comes from the _BBN method */ - - status = - acpi_ut_evaluate_numeric_object(METHOD_NAME__BBN, pci_root_node, - &pci_value); - if (ACPI_SUCCESS(status)) { - pci_id->bus = ACPI_LOWORD(pci_value); - } - - /* Complete this device's pci_id */ - - acpi_os_derive_pci_id(pci_root_node, region_obj->region.node, &pci_id); - - *region_context = pci_id; - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_match_pci_root_bridge - * - * PARAMETERS: Id - The HID/CID in string format - * - * RETURN: TRUE if the Id is a match for a PCI/PCI-Express Root Bridge - * - * DESCRIPTION: Determine if the input ID is a PCI Root Bridge ID. - * - ******************************************************************************/ - -static u8 acpi_ev_match_pci_root_bridge(char *id) -{ - - /* - * Check if this is a PCI root. - * ACPI 3.0+: check for a PCI Express root also. - */ - if (!(ACPI_STRNCMP(id, - PCI_ROOT_HID_STRING, - sizeof(PCI_ROOT_HID_STRING))) || - !(ACPI_STRNCMP(id, - PCI_EXPRESS_ROOT_HID_STRING, - sizeof(PCI_EXPRESS_ROOT_HID_STRING)))) { - return (TRUE); - } - - return (FALSE); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_is_pci_root_bridge - * - * PARAMETERS: Node - Device node being examined - * - * RETURN: TRUE if device is a PCI/PCI-Express Root Bridge - * - * DESCRIPTION: Determine if the input device represents a PCI Root Bridge by - * examining the _HID and _CID for the device. - * - ******************************************************************************/ - -static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node) -{ - acpi_status status; - struct acpica_device_id hid; - struct acpi_compatible_id_list *cid; - u32 i; - - /* Get the _HID and check for a PCI Root Bridge */ - - status = acpi_ut_execute_HID(node, &hid); - if (ACPI_FAILURE(status)) { - return (FALSE); - } - - if (acpi_ev_match_pci_root_bridge(hid.value)) { - return (TRUE); - } - - /* The _HID did not match. Get the _CID and check for a PCI Root Bridge */ - - status = acpi_ut_execute_CID(node, &cid); - if (ACPI_FAILURE(status)) { - return (FALSE); - } - - /* Check all _CIDs in the returned list */ - - for (i = 0; i < cid->count; i++) { - if (acpi_ev_match_pci_root_bridge(cid->id[i].value)) { - ACPI_FREE(cid); - return (TRUE); - } - } - - ACPI_FREE(cid); - return (FALSE); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_pci_bar_region_setup - * - * PARAMETERS: Handle - Region we are interested in - * Function - Start or stop - * handler_context - Address space handler context - * region_context - Region specific context - * - * RETURN: Status - * - * DESCRIPTION: Setup a pci_bAR operation region - * - * MUTEX: Assumes namespace is not locked - * - ******************************************************************************/ - -acpi_status -acpi_ev_pci_bar_region_setup(acpi_handle handle, - u32 function, - void *handler_context, void **region_context) -{ - ACPI_FUNCTION_TRACE(ev_pci_bar_region_setup); - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_cmos_region_setup - * - * PARAMETERS: Handle - Region we are interested in - * Function - Start or stop - * handler_context - Address space handler context - * region_context - Region specific context - * - * RETURN: Status - * - * DESCRIPTION: Setup a CMOS operation region - * - * MUTEX: Assumes namespace is not locked - * - ******************************************************************************/ - -acpi_status -acpi_ev_cmos_region_setup(acpi_handle handle, - u32 function, - void *handler_context, void **region_context) -{ - ACPI_FUNCTION_TRACE(ev_cmos_region_setup); - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_default_region_setup - * - * PARAMETERS: Handle - Region we are interested in - * Function - Start or stop - * handler_context - Address space handler context - * region_context - Region specific context - * - * RETURN: Status - * - * DESCRIPTION: Default region initialization - * - ******************************************************************************/ - -acpi_status -acpi_ev_default_region_setup(acpi_handle handle, - u32 function, - void *handler_context, void **region_context) -{ - ACPI_FUNCTION_TRACE(ev_default_region_setup); - - if (function == ACPI_REGION_DEACTIVATE) { - *region_context = NULL; - } else { - *region_context = handler_context; - } - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_initialize_region - * - * PARAMETERS: region_obj - Region we are initializing - * acpi_ns_locked - Is namespace locked? - * - * RETURN: Status - * - * DESCRIPTION: Initializes the region, finds any _REG methods and saves them - * for execution at a later time - * - * Get the appropriate address space handler for a newly - * created region. - * - * This also performs address space specific initialization. For - * example, PCI regions must have an _ADR object that contains - * a PCI address in the scope of the definition. This address is - * required to perform an access to PCI config space. - * - * MUTEX: Interpreter should be unlocked, because we may run the _REG - * method for this region. - * - ******************************************************************************/ - -acpi_status -acpi_ev_initialize_region(union acpi_operand_object *region_obj, - u8 acpi_ns_locked) -{ - union acpi_operand_object *handler_obj; - union acpi_operand_object *obj_desc; - acpi_adr_space_type space_id; - struct acpi_namespace_node *node; - acpi_status status; - struct acpi_namespace_node *method_node; - acpi_name *reg_name_ptr = (acpi_name *) METHOD_NAME__REG; - union acpi_operand_object *region_obj2; - - ACPI_FUNCTION_TRACE_U32(ev_initialize_region, acpi_ns_locked); - - if (!region_obj) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - if (region_obj->common.flags & AOPOBJ_OBJECT_INITIALIZED) { - return_ACPI_STATUS(AE_OK); - } - - region_obj2 = acpi_ns_get_secondary_object(region_obj); - if (!region_obj2) { - return_ACPI_STATUS(AE_NOT_EXIST); - } - - node = acpi_ns_get_parent_node(region_obj->region.node); - space_id = region_obj->region.space_id; - - /* Setup defaults */ - - region_obj->region.handler = NULL; - region_obj2->extra.method_REG = NULL; - region_obj->common.flags &= ~(AOPOBJ_SETUP_COMPLETE); - region_obj->common.flags |= AOPOBJ_OBJECT_INITIALIZED; - - /* Find any "_REG" method associated with this region definition */ - - status = - acpi_ns_search_one_scope(*reg_name_ptr, node, ACPI_TYPE_METHOD, - &method_node); - if (ACPI_SUCCESS(status)) { - /* - * The _REG method is optional and there can be only one per region - * definition. This will be executed when the handler is attached - * or removed - */ - region_obj2->extra.method_REG = method_node; - } - - /* - * The following loop depends upon the root Node having no parent - * ie: acpi_gbl_root_node->parent_entry being set to NULL - */ - while (node) { - - /* Check to see if a handler exists */ - - handler_obj = NULL; - obj_desc = acpi_ns_get_attached_object(node); - if (obj_desc) { - - /* Can only be a handler if the object exists */ - - switch (node->type) { - case ACPI_TYPE_DEVICE: - - handler_obj = obj_desc->device.handler; - break; - - case ACPI_TYPE_PROCESSOR: - - handler_obj = obj_desc->processor.handler; - break; - - case ACPI_TYPE_THERMAL: - - handler_obj = obj_desc->thermal_zone.handler; - break; - - default: - /* Ignore other objects */ - break; - } - - while (handler_obj) { - - /* Is this handler of the correct type? */ - - if (handler_obj->address_space.space_id == - space_id) { - - /* Found correct handler */ - - ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, - "Found handler %p for region %p in obj %p\n", - handler_obj, - region_obj, - obj_desc)); - - status = - acpi_ev_attach_region(handler_obj, - region_obj, - acpi_ns_locked); - - /* - * Tell all users that this region is usable by running the _REG - * method - */ - if (acpi_ns_locked) { - status = - acpi_ut_release_mutex - (ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS - (status); - } - } - - status = - acpi_ev_execute_reg_method - (region_obj, 1); - - if (acpi_ns_locked) { - status = - acpi_ut_acquire_mutex - (ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS - (status); - } - } - - return_ACPI_STATUS(AE_OK); - } - - /* Try next handler in the list */ - - handler_obj = handler_obj->address_space.next; - } - } - - /* This node does not have the handler we need; Pop up one level */ - - node = acpi_ns_get_parent_node(node); - } - - /* If we get here, there is no handler for this region */ - - ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, - "No handler for RegionType %s(%X) (RegionObj %p)\n", - acpi_ut_get_region_name(space_id), space_id, - region_obj)); - - return_ACPI_STATUS(AE_NOT_EXIST); -} diff --git a/drivers/acpi/events/evsci.c b/drivers/acpi/events/evsci.c deleted file mode 100644 index 18dce10c5fb1..000000000000 --- a/drivers/acpi/events/evsci.c +++ /dev/null @@ -1,183 +0,0 @@ -/******************************************************************************* - * - * Module Name: evsci - System Control Interrupt configuration and - * legacy to ACPI mode state transition functions - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_EVENTS -ACPI_MODULE_NAME("evsci") - -/* Local prototypes */ -static u32 ACPI_SYSTEM_XFACE acpi_ev_sci_xrupt_handler(void *context); - -/******************************************************************************* - * - * FUNCTION: acpi_ev_sci_xrupt_handler - * - * PARAMETERS: Context - Calling Context - * - * RETURN: Status code indicates whether interrupt was handled. - * - * DESCRIPTION: Interrupt handler that will figure out what function or - * control method to call to deal with a SCI. - * - ******************************************************************************/ - -static u32 ACPI_SYSTEM_XFACE acpi_ev_sci_xrupt_handler(void *context) -{ - struct acpi_gpe_xrupt_info *gpe_xrupt_list = context; - u32 interrupt_handled = ACPI_INTERRUPT_NOT_HANDLED; - - ACPI_FUNCTION_TRACE(ev_sci_xrupt_handler); - - /* - * We are guaranteed by the ACPI CA initialization/shutdown code that - * if this interrupt handler is installed, ACPI is enabled. - */ - - /* - * Fixed Events: - * Check for and dispatch any Fixed Events that have occurred - */ - interrupt_handled |= acpi_ev_fixed_event_detect(); - - /* - * General Purpose Events: - * Check for and dispatch any GPEs that have occurred - */ - interrupt_handled |= acpi_ev_gpe_detect(gpe_xrupt_list); - - return_UINT32(interrupt_handled); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_gpe_xrupt_handler - * - * PARAMETERS: Context - Calling Context - * - * RETURN: Status code indicates whether interrupt was handled. - * - * DESCRIPTION: Handler for GPE Block Device interrupts - * - ******************************************************************************/ - -u32 ACPI_SYSTEM_XFACE acpi_ev_gpe_xrupt_handler(void *context) -{ - struct acpi_gpe_xrupt_info *gpe_xrupt_list = context; - u32 interrupt_handled = ACPI_INTERRUPT_NOT_HANDLED; - - ACPI_FUNCTION_TRACE(ev_gpe_xrupt_handler); - - /* - * We are guaranteed by the ACPI CA initialization/shutdown code that - * if this interrupt handler is installed, ACPI is enabled. - */ - - /* GPEs: Check for and dispatch any GPEs that have occurred */ - - interrupt_handled |= acpi_ev_gpe_detect(gpe_xrupt_list); - - return_UINT32(interrupt_handled); -} - -/****************************************************************************** - * - * FUNCTION: acpi_ev_install_sci_handler - * - * PARAMETERS: none - * - * RETURN: Status - * - * DESCRIPTION: Installs SCI handler. - * - ******************************************************************************/ - -u32 acpi_ev_install_sci_handler(void) -{ - u32 status = AE_OK; - - ACPI_FUNCTION_TRACE(ev_install_sci_handler); - - status = - acpi_os_install_interrupt_handler((u32) acpi_gbl_FADT.sci_interrupt, - acpi_ev_sci_xrupt_handler, - acpi_gbl_gpe_xrupt_list_head); - return_ACPI_STATUS(status); -} - -/****************************************************************************** - * - * FUNCTION: acpi_ev_remove_sci_handler - * - * PARAMETERS: none - * - * RETURN: E_OK if handler uninstalled OK, E_ERROR if handler was not - * installed to begin with - * - * DESCRIPTION: Remove the SCI interrupt handler. No further SCIs will be - * taken. - * - * Note: It doesn't seem important to disable all events or set the event - * enable registers to their original values. The OS should disable - * the SCI interrupt level when the handler is removed, so no more - * events will come in. - * - ******************************************************************************/ - -acpi_status acpi_ev_remove_sci_handler(void) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_remove_sci_handler); - - /* Just let the OS remove the handler and disable the level */ - - status = - acpi_os_remove_interrupt_handler((u32) acpi_gbl_FADT.sci_interrupt, - acpi_ev_sci_xrupt_handler); - - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/events/evxface.c b/drivers/acpi/events/evxface.c deleted file mode 100644 index 3b6a069f5b06..000000000000 --- a/drivers/acpi/events/evxface.c +++ /dev/null @@ -1,821 +0,0 @@ -/****************************************************************************** - * - * Module Name: evxface - External interfaces for ACPI events - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_EVENTS -ACPI_MODULE_NAME("evxface") - -/******************************************************************************* - * - * FUNCTION: acpi_install_exception_handler - * - * PARAMETERS: Handler - Pointer to the handler function for the - * event - * - * RETURN: Status - * - * DESCRIPTION: Saves the pointer to the handler function - * - ******************************************************************************/ -#ifdef ACPI_FUTURE_USAGE -acpi_status acpi_install_exception_handler(acpi_exception_handler handler) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_install_exception_handler); - - status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Don't allow two handlers. */ - - if (acpi_gbl_exception_handler) { - status = AE_ALREADY_EXISTS; - goto cleanup; - } - - /* Install the handler */ - - acpi_gbl_exception_handler = handler; - - cleanup: - (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_install_exception_handler) -#endif /* ACPI_FUTURE_USAGE */ -/******************************************************************************* - * - * FUNCTION: acpi_install_fixed_event_handler - * - * PARAMETERS: Event - Event type to enable. - * Handler - Pointer to the handler function for the - * event - * Context - Value passed to the handler on each GPE - * - * RETURN: Status - * - * DESCRIPTION: Saves the pointer to the handler function and then enables the - * event. - * - ******************************************************************************/ -acpi_status -acpi_install_fixed_event_handler(u32 event, - acpi_event_handler handler, void *context) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_install_fixed_event_handler); - - /* Parameter validation */ - - if (event > ACPI_EVENT_MAX) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Don't allow two handlers. */ - - if (NULL != acpi_gbl_fixed_event_handlers[event].handler) { - status = AE_ALREADY_EXISTS; - goto cleanup; - } - - /* Install the handler before enabling the event */ - - acpi_gbl_fixed_event_handlers[event].handler = handler; - acpi_gbl_fixed_event_handlers[event].context = context; - - status = acpi_clear_event(event); - if (ACPI_SUCCESS(status)) - status = acpi_enable_event(event, 0); - if (ACPI_FAILURE(status)) { - ACPI_WARNING((AE_INFO, "Could not enable fixed event %X", - event)); - - /* Remove the handler */ - - acpi_gbl_fixed_event_handlers[event].handler = NULL; - acpi_gbl_fixed_event_handlers[event].context = NULL; - } else { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Enabled fixed event %X, Handler=%p\n", event, - handler)); - } - - cleanup: - (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_install_fixed_event_handler) - -/******************************************************************************* - * - * FUNCTION: acpi_remove_fixed_event_handler - * - * PARAMETERS: Event - Event type to disable. - * Handler - Address of the handler - * - * RETURN: Status - * - * DESCRIPTION: Disables the event and unregisters the event handler. - * - ******************************************************************************/ -acpi_status -acpi_remove_fixed_event_handler(u32 event, acpi_event_handler handler) -{ - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(acpi_remove_fixed_event_handler); - - /* Parameter validation */ - - if (event > ACPI_EVENT_MAX) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Disable the event before removing the handler */ - - status = acpi_disable_event(event, 0); - - /* Always Remove the handler */ - - acpi_gbl_fixed_event_handlers[event].handler = NULL; - acpi_gbl_fixed_event_handlers[event].context = NULL; - - if (ACPI_FAILURE(status)) { - ACPI_WARNING((AE_INFO, - "Could not write to fixed event enable register %X", - event)); - } else { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Disabled fixed event %X\n", - event)); - } - - (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_remove_fixed_event_handler) - -/******************************************************************************* - * - * FUNCTION: acpi_install_notify_handler - * - * PARAMETERS: Device - The device for which notifies will be handled - * handler_type - The type of handler: - * ACPI_SYSTEM_NOTIFY: system_handler (00-7f) - * ACPI_DEVICE_NOTIFY: driver_handler (80-ff) - * ACPI_ALL_NOTIFY: both system and device - * Handler - Address of the handler - * Context - Value passed to the handler on each GPE - * - * RETURN: Status - * - * DESCRIPTION: Install a handler for notifies on an ACPI device - * - ******************************************************************************/ -acpi_status -acpi_install_notify_handler(acpi_handle device, - u32 handler_type, - acpi_notify_handler handler, void *context) -{ - union acpi_operand_object *obj_desc; - union acpi_operand_object *notify_obj; - struct acpi_namespace_node *node; - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_install_notify_handler); - - /* Parameter validation */ - - if ((!device) || - (!handler) || (handler_type > ACPI_MAX_NOTIFY_HANDLER_TYPE)) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Convert and validate the device handle */ - - node = acpi_ns_map_handle_to_node(device); - if (!node) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - /* - * Root Object: - * Registering a notify handler on the root object indicates that the - * caller wishes to receive notifications for all objects. Note that - * only one global handler can be regsitered (per notify type). - */ - if (device == ACPI_ROOT_OBJECT) { - - /* Make sure the handler is not already installed */ - - if (((handler_type & ACPI_SYSTEM_NOTIFY) && - acpi_gbl_system_notify.handler) || - ((handler_type & ACPI_DEVICE_NOTIFY) && - acpi_gbl_device_notify.handler)) { - status = AE_ALREADY_EXISTS; - goto unlock_and_exit; - } - - if (handler_type & ACPI_SYSTEM_NOTIFY) { - acpi_gbl_system_notify.node = node; - acpi_gbl_system_notify.handler = handler; - acpi_gbl_system_notify.context = context; - } - - if (handler_type & ACPI_DEVICE_NOTIFY) { - acpi_gbl_device_notify.node = node; - acpi_gbl_device_notify.handler = handler; - acpi_gbl_device_notify.context = context; - } - - /* Global notify handler installed */ - } - - /* - * All Other Objects: - * Caller will only receive notifications specific to the target object. - * Note that only certain object types can receive notifications. - */ - else { - /* Notifies allowed on this object? */ - - if (!acpi_ev_is_notify_object(node)) { - status = AE_TYPE; - goto unlock_and_exit; - } - - /* Check for an existing internal object */ - - obj_desc = acpi_ns_get_attached_object(node); - if (obj_desc) { - - /* Object exists - make sure there's no handler */ - - if (((handler_type & ACPI_SYSTEM_NOTIFY) && - obj_desc->common_notify.system_notify) || - ((handler_type & ACPI_DEVICE_NOTIFY) && - obj_desc->common_notify.device_notify)) { - status = AE_ALREADY_EXISTS; - goto unlock_and_exit; - } - } else { - /* Create a new object */ - - obj_desc = acpi_ut_create_internal_object(node->type); - if (!obj_desc) { - status = AE_NO_MEMORY; - goto unlock_and_exit; - } - - /* Attach new object to the Node */ - - status = - acpi_ns_attach_object(device, obj_desc, node->type); - - /* Remove local reference to the object */ - - acpi_ut_remove_reference(obj_desc); - if (ACPI_FAILURE(status)) { - goto unlock_and_exit; - } - } - - /* Install the handler */ - - notify_obj = - acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_NOTIFY); - if (!notify_obj) { - status = AE_NO_MEMORY; - goto unlock_and_exit; - } - - notify_obj->notify.node = node; - notify_obj->notify.handler = handler; - notify_obj->notify.context = context; - - if (handler_type & ACPI_SYSTEM_NOTIFY) { - obj_desc->common_notify.system_notify = notify_obj; - } - - if (handler_type & ACPI_DEVICE_NOTIFY) { - obj_desc->common_notify.device_notify = notify_obj; - } - - if (handler_type == ACPI_ALL_NOTIFY) { - - /* Extra ref if installed in both */ - - acpi_ut_add_reference(notify_obj); - } - } - - unlock_and_exit: - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_install_notify_handler) - -/******************************************************************************* - * - * FUNCTION: acpi_remove_notify_handler - * - * PARAMETERS: Device - The device for which notifies will be handled - * handler_type - The type of handler: - * ACPI_SYSTEM_NOTIFY: system_handler (00-7f) - * ACPI_DEVICE_NOTIFY: driver_handler (80-ff) - * ACPI_ALL_NOTIFY: both system and device - * Handler - Address of the handler - * - * RETURN: Status - * - * DESCRIPTION: Remove a handler for notifies on an ACPI device - * - ******************************************************************************/ -acpi_status -acpi_remove_notify_handler(acpi_handle device, - u32 handler_type, acpi_notify_handler handler) -{ - union acpi_operand_object *notify_obj; - union acpi_operand_object *obj_desc; - struct acpi_namespace_node *node; - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_remove_notify_handler); - - /* Parameter validation */ - - if ((!device) || - (!handler) || (handler_type > ACPI_MAX_NOTIFY_HANDLER_TYPE)) { - status = AE_BAD_PARAMETER; - goto exit; - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - goto exit; - } - - /* Convert and validate the device handle */ - - node = acpi_ns_map_handle_to_node(device); - if (!node) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - /* Root Object */ - - if (device == ACPI_ROOT_OBJECT) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Removing notify handler for namespace root object\n")); - - if (((handler_type & ACPI_SYSTEM_NOTIFY) && - !acpi_gbl_system_notify.handler) || - ((handler_type & ACPI_DEVICE_NOTIFY) && - !acpi_gbl_device_notify.handler)) { - status = AE_NOT_EXIST; - goto unlock_and_exit; - } - - /* Make sure all deferred tasks are completed */ - - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - acpi_os_wait_events_complete(NULL); - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - goto exit; - } - - if (handler_type & ACPI_SYSTEM_NOTIFY) { - acpi_gbl_system_notify.node = NULL; - acpi_gbl_system_notify.handler = NULL; - acpi_gbl_system_notify.context = NULL; - } - - if (handler_type & ACPI_DEVICE_NOTIFY) { - acpi_gbl_device_notify.node = NULL; - acpi_gbl_device_notify.handler = NULL; - acpi_gbl_device_notify.context = NULL; - } - } - - /* All Other Objects */ - - else { - /* Notifies allowed on this object? */ - - if (!acpi_ev_is_notify_object(node)) { - status = AE_TYPE; - goto unlock_and_exit; - } - - /* Check for an existing internal object */ - - obj_desc = acpi_ns_get_attached_object(node); - if (!obj_desc) { - status = AE_NOT_EXIST; - goto unlock_and_exit; - } - - /* Object exists - make sure there's an existing handler */ - - if (handler_type & ACPI_SYSTEM_NOTIFY) { - notify_obj = obj_desc->common_notify.system_notify; - if (!notify_obj) { - status = AE_NOT_EXIST; - goto unlock_and_exit; - } - - if (notify_obj->notify.handler != handler) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - /* Make sure all deferred tasks are completed */ - - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - acpi_os_wait_events_complete(NULL); - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - goto exit; - } - - /* Remove the handler */ - obj_desc->common_notify.system_notify = NULL; - acpi_ut_remove_reference(notify_obj); - } - - if (handler_type & ACPI_DEVICE_NOTIFY) { - notify_obj = obj_desc->common_notify.device_notify; - if (!notify_obj) { - status = AE_NOT_EXIST; - goto unlock_and_exit; - } - - if (notify_obj->notify.handler != handler) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - /* Make sure all deferred tasks are completed */ - - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - acpi_os_wait_events_complete(NULL); - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - goto exit; - } - - /* Remove the handler */ - obj_desc->common_notify.device_notify = NULL; - acpi_ut_remove_reference(notify_obj); - } - } - - unlock_and_exit: - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - exit: - if (ACPI_FAILURE(status)) - ACPI_EXCEPTION((AE_INFO, status, "Removing notify handler")); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_remove_notify_handler) - -/******************************************************************************* - * - * FUNCTION: acpi_install_gpe_handler - * - * PARAMETERS: gpe_device - Namespace node for the GPE (NULL for FADT - * defined GPEs) - * gpe_number - The GPE number within the GPE block - * Type - Whether this GPE should be treated as an - * edge- or level-triggered interrupt. - * Address - Address of the handler - * Context - Value passed to the handler on each GPE - * - * RETURN: Status - * - * DESCRIPTION: Install a handler for a General Purpose Event. - * - ******************************************************************************/ -acpi_status -acpi_install_gpe_handler(acpi_handle gpe_device, - u32 gpe_number, - u32 type, acpi_event_handler address, void *context) -{ - struct acpi_gpe_event_info *gpe_event_info; - struct acpi_handler_info *handler; - acpi_status status; - acpi_cpu_flags flags; - - ACPI_FUNCTION_TRACE(acpi_install_gpe_handler); - - /* Parameter validation */ - - if ((!address) || (type > ACPI_GPE_XRUPT_TYPE_MASK)) { - status = AE_BAD_PARAMETER; - goto exit; - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); - if (ACPI_FAILURE(status)) { - goto exit; - } - - /* Ensure that we have a valid GPE number */ - - gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number); - if (!gpe_event_info) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - /* Make sure that there isn't a handler there already */ - - if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) == - ACPI_GPE_DISPATCH_HANDLER) { - status = AE_ALREADY_EXISTS; - goto unlock_and_exit; - } - - /* Allocate and init handler object */ - - handler = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_handler_info)); - if (!handler) { - status = AE_NO_MEMORY; - goto unlock_and_exit; - } - - handler->address = address; - handler->context = context; - handler->method_node = gpe_event_info->dispatch.method_node; - - /* Disable the GPE before installing the handler */ - - status = acpi_ev_disable_gpe(gpe_event_info); - if (ACPI_FAILURE(status)) { - goto unlock_and_exit; - } - - /* Install the handler */ - - flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); - gpe_event_info->dispatch.handler = handler; - - /* Setup up dispatch flags to indicate handler (vs. method) */ - - gpe_event_info->flags &= ~(ACPI_GPE_XRUPT_TYPE_MASK | ACPI_GPE_DISPATCH_MASK); /* Clear bits */ - gpe_event_info->flags |= (u8) (type | ACPI_GPE_DISPATCH_HANDLER); - - acpi_os_release_lock(acpi_gbl_gpe_lock, flags); - - unlock_and_exit: - (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); - exit: - if (ACPI_FAILURE(status)) - ACPI_EXCEPTION((AE_INFO, status, - "Installing notify handler failed")); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_install_gpe_handler) - -/******************************************************************************* - * - * FUNCTION: acpi_remove_gpe_handler - * - * PARAMETERS: gpe_device - Namespace node for the GPE (NULL for FADT - * defined GPEs) - * gpe_number - The event to remove a handler - * Address - Address of the handler - * - * RETURN: Status - * - * DESCRIPTION: Remove a handler for a General Purpose acpi_event. - * - ******************************************************************************/ -acpi_status -acpi_remove_gpe_handler(acpi_handle gpe_device, - u32 gpe_number, acpi_event_handler address) -{ - struct acpi_gpe_event_info *gpe_event_info; - struct acpi_handler_info *handler; - acpi_status status; - acpi_cpu_flags flags; - - ACPI_FUNCTION_TRACE(acpi_remove_gpe_handler); - - /* Parameter validation */ - - if (!address) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Ensure that we have a valid GPE number */ - - gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number); - if (!gpe_event_info) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - /* Make sure that a handler is indeed installed */ - - if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) != - ACPI_GPE_DISPATCH_HANDLER) { - status = AE_NOT_EXIST; - goto unlock_and_exit; - } - - /* Make sure that the installed handler is the same */ - - if (gpe_event_info->dispatch.handler->address != address) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - /* Disable the GPE before removing the handler */ - - status = acpi_ev_disable_gpe(gpe_event_info); - if (ACPI_FAILURE(status)) { - goto unlock_and_exit; - } - - /* Make sure all deferred tasks are completed */ - - (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); - acpi_os_wait_events_complete(NULL); - status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Remove the handler */ - - flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); - handler = gpe_event_info->dispatch.handler; - - /* Restore Method node (if any), set dispatch flags */ - - gpe_event_info->dispatch.method_node = handler->method_node; - gpe_event_info->flags &= ~ACPI_GPE_DISPATCH_MASK; /* Clear bits */ - if (handler->method_node) { - gpe_event_info->flags |= ACPI_GPE_DISPATCH_METHOD; - } - acpi_os_release_lock(acpi_gbl_gpe_lock, flags); - - /* Now we can free the handler object */ - - ACPI_FREE(handler); - - unlock_and_exit: - (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_remove_gpe_handler) - -/******************************************************************************* - * - * FUNCTION: acpi_acquire_global_lock - * - * PARAMETERS: Timeout - How long the caller is willing to wait - * Handle - Where the handle to the lock is returned - * (if acquired) - * - * RETURN: Status - * - * DESCRIPTION: Acquire the ACPI Global Lock - * - * Note: Allows callers with the same thread ID to acquire the global lock - * multiple times. In other words, externally, the behavior of the global lock - * is identical to an AML mutex. On the first acquire, a new handle is - * returned. On any subsequent calls to acquire by the same thread, the same - * handle is returned. - * - ******************************************************************************/ -acpi_status acpi_acquire_global_lock(u16 timeout, u32 * handle) -{ - acpi_status status; - - if (!handle) { - return (AE_BAD_PARAMETER); - } - - /* Must lock interpreter to prevent race conditions */ - - acpi_ex_enter_interpreter(); - - status = acpi_ex_acquire_mutex_object(timeout, - acpi_gbl_global_lock_mutex, - acpi_os_get_thread_id()); - - if (ACPI_SUCCESS(status)) { - - /* Return the global lock handle (updated in acpi_ev_acquire_global_lock) */ - - *handle = acpi_gbl_global_lock_handle; - } - - acpi_ex_exit_interpreter(); - return (status); -} - -ACPI_EXPORT_SYMBOL(acpi_acquire_global_lock) - -/******************************************************************************* - * - * FUNCTION: acpi_release_global_lock - * - * PARAMETERS: Handle - Returned from acpi_acquire_global_lock - * - * RETURN: Status - * - * DESCRIPTION: Release the ACPI Global Lock. The handle must be valid. - * - ******************************************************************************/ -acpi_status acpi_release_global_lock(u32 handle) -{ - acpi_status status; - - if (!handle || (handle != acpi_gbl_global_lock_handle)) { - return (AE_NOT_ACQUIRED); - } - - status = acpi_ex_release_mutex_object(acpi_gbl_global_lock_mutex); - return (status); -} - -ACPI_EXPORT_SYMBOL(acpi_release_global_lock) diff --git a/drivers/acpi/events/evxfevnt.c b/drivers/acpi/events/evxfevnt.c deleted file mode 100644 index f33cc30cb6b8..000000000000 --- a/drivers/acpi/events/evxfevnt.c +++ /dev/null @@ -1,871 +0,0 @@ -/****************************************************************************** - * - * Module Name: evxfevnt - External Interfaces, ACPI event disable/enable - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_EVENTS -ACPI_MODULE_NAME("evxfevnt") - -/* Local prototypes */ -acpi_status -acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info, - struct acpi_gpe_block_info *gpe_block, void *context); - -/******************************************************************************* - * - * FUNCTION: acpi_enable - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Transfers the system into ACPI mode. - * - ******************************************************************************/ - -acpi_status acpi_enable(void) -{ - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(acpi_enable); - - /* ACPI tables must be present */ - - if (!acpi_tb_tables_loaded()) { - return_ACPI_STATUS(AE_NO_ACPI_TABLES); - } - - /* Check current mode */ - - if (acpi_hw_get_mode() == ACPI_SYS_MODE_ACPI) { - ACPI_DEBUG_PRINT((ACPI_DB_INIT, - "System is already in ACPI mode\n")); - } else { - /* Transition to ACPI mode */ - - status = acpi_hw_set_mode(ACPI_SYS_MODE_ACPI); - if (ACPI_FAILURE(status)) { - ACPI_ERROR((AE_INFO, - "Could not transition to ACPI mode")); - return_ACPI_STATUS(status); - } - - ACPI_DEBUG_PRINT((ACPI_DB_INIT, - "Transition to ACPI mode successful\n")); - } - - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_enable) - -/******************************************************************************* - * - * FUNCTION: acpi_disable - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Transfers the system into LEGACY (non-ACPI) mode. - * - ******************************************************************************/ -acpi_status acpi_disable(void) -{ - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(acpi_disable); - - if (acpi_hw_get_mode() == ACPI_SYS_MODE_LEGACY) { - ACPI_DEBUG_PRINT((ACPI_DB_INIT, - "System is already in legacy (non-ACPI) mode\n")); - } else { - /* Transition to LEGACY mode */ - - status = acpi_hw_set_mode(ACPI_SYS_MODE_LEGACY); - - if (ACPI_FAILURE(status)) { - ACPI_ERROR((AE_INFO, - "Could not exit ACPI mode to legacy mode")); - return_ACPI_STATUS(status); - } - - ACPI_DEBUG_PRINT((ACPI_DB_INIT, "ACPI mode disabled\n")); - } - - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_disable) - -/******************************************************************************* - * - * FUNCTION: acpi_enable_event - * - * PARAMETERS: Event - The fixed eventto be enabled - * Flags - Reserved - * - * RETURN: Status - * - * DESCRIPTION: Enable an ACPI event (fixed) - * - ******************************************************************************/ -acpi_status acpi_enable_event(u32 event, u32 flags) -{ - acpi_status status = AE_OK; - u32 value; - - ACPI_FUNCTION_TRACE(acpi_enable_event); - - /* Decode the Fixed Event */ - - if (event > ACPI_EVENT_MAX) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* - * Enable the requested fixed event (by writing a one to the enable - * register bit) - */ - status = - acpi_set_register(acpi_gbl_fixed_event_info[event]. - enable_register_id, 1); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Make sure that the hardware responded */ - - status = - acpi_get_register(acpi_gbl_fixed_event_info[event]. - enable_register_id, &value); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - if (value != 1) { - ACPI_ERROR((AE_INFO, - "Could not enable %s event", - acpi_ut_get_event_name(event))); - return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE); - } - - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_enable_event) - -/******************************************************************************* - * - * FUNCTION: acpi_set_gpe_type - * - * PARAMETERS: gpe_device - Parent GPE Device - * gpe_number - GPE level within the GPE block - * Type - New GPE type - * - * RETURN: Status - * - * DESCRIPTION: Set the type of an individual GPE - * - ******************************************************************************/ -acpi_status acpi_set_gpe_type(acpi_handle gpe_device, u32 gpe_number, u8 type) -{ - acpi_status status = AE_OK; - struct acpi_gpe_event_info *gpe_event_info; - - ACPI_FUNCTION_TRACE(acpi_set_gpe_type); - - /* Ensure that we have a valid GPE number */ - - gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number); - if (!gpe_event_info) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - if ((gpe_event_info->flags & ACPI_GPE_TYPE_MASK) == type) { - return_ACPI_STATUS(AE_OK); - } - - /* Set the new type (will disable GPE if currently enabled) */ - - status = acpi_ev_set_gpe_type(gpe_event_info, type); - - unlock_and_exit: - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_set_gpe_type) - -/******************************************************************************* - * - * FUNCTION: acpi_enable_gpe - * - * PARAMETERS: gpe_device - Parent GPE Device - * gpe_number - GPE level within the GPE block - * Flags - Just enable, or also wake enable? - * Called from ISR or not - * - * RETURN: Status - * - * DESCRIPTION: Enable an ACPI event (general purpose) - * - ******************************************************************************/ -acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number) -{ - acpi_status status = AE_OK; - acpi_cpu_flags flags; - struct acpi_gpe_event_info *gpe_event_info; - - ACPI_FUNCTION_TRACE(acpi_enable_gpe); - - flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); - - /* Ensure that we have a valid GPE number */ - - gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number); - if (!gpe_event_info) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - /* Perform the enable */ - - status = acpi_ev_enable_gpe(gpe_event_info, TRUE); - - unlock_and_exit: - acpi_os_release_lock(acpi_gbl_gpe_lock, flags); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_enable_gpe) - -/******************************************************************************* - * - * FUNCTION: acpi_disable_gpe - * - * PARAMETERS: gpe_device - Parent GPE Device - * gpe_number - GPE level within the GPE block - * Flags - Just disable, or also wake disable? - * Called from ISR or not - * - * RETURN: Status - * - * DESCRIPTION: Disable an ACPI event (general purpose) - * - ******************************************************************************/ -acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number) -{ - acpi_status status = AE_OK; - acpi_cpu_flags flags; - struct acpi_gpe_event_info *gpe_event_info; - - ACPI_FUNCTION_TRACE(acpi_disable_gpe); - - flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); - /* Ensure that we have a valid GPE number */ - - gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number); - if (!gpe_event_info) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - status = acpi_ev_disable_gpe(gpe_event_info); - -unlock_and_exit: - acpi_os_release_lock(acpi_gbl_gpe_lock, flags); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_disable_gpe) - -/******************************************************************************* - * - * FUNCTION: acpi_disable_event - * - * PARAMETERS: Event - The fixed eventto be enabled - * Flags - Reserved - * - * RETURN: Status - * - * DESCRIPTION: Disable an ACPI event (fixed) - * - ******************************************************************************/ -acpi_status acpi_disable_event(u32 event, u32 flags) -{ - acpi_status status = AE_OK; - u32 value; - - ACPI_FUNCTION_TRACE(acpi_disable_event); - - /* Decode the Fixed Event */ - - if (event > ACPI_EVENT_MAX) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* - * Disable the requested fixed event (by writing a zero to the enable - * register bit) - */ - status = - acpi_set_register(acpi_gbl_fixed_event_info[event]. - enable_register_id, 0); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - status = - acpi_get_register(acpi_gbl_fixed_event_info[event]. - enable_register_id, &value); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - if (value != 0) { - ACPI_ERROR((AE_INFO, - "Could not disable %s events", - acpi_ut_get_event_name(event))); - return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE); - } - - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_disable_event) - -/******************************************************************************* - * - * FUNCTION: acpi_clear_event - * - * PARAMETERS: Event - The fixed event to be cleared - * - * RETURN: Status - * - * DESCRIPTION: Clear an ACPI event (fixed) - * - ******************************************************************************/ -acpi_status acpi_clear_event(u32 event) -{ - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(acpi_clear_event); - - /* Decode the Fixed Event */ - - if (event > ACPI_EVENT_MAX) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* - * Clear the requested fixed event (By writing a one to the status - * register bit) - */ - status = - acpi_set_register(acpi_gbl_fixed_event_info[event]. - status_register_id, 1); - - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_clear_event) - -/******************************************************************************* - * - * FUNCTION: acpi_clear_gpe - * - * PARAMETERS: gpe_device - Parent GPE Device - * gpe_number - GPE level within the GPE block - * Flags - Called from an ISR or not - * - * RETURN: Status - * - * DESCRIPTION: Clear an ACPI event (general purpose) - * - ******************************************************************************/ -acpi_status acpi_clear_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags) -{ - acpi_status status = AE_OK; - struct acpi_gpe_event_info *gpe_event_info; - - ACPI_FUNCTION_TRACE(acpi_clear_gpe); - - /* Use semaphore lock if not executing at interrupt level */ - - if (flags & ACPI_NOT_ISR) { - status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - - /* Ensure that we have a valid GPE number */ - - gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number); - if (!gpe_event_info) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - status = acpi_hw_clear_gpe(gpe_event_info); - - unlock_and_exit: - if (flags & ACPI_NOT_ISR) { - (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); - } - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_clear_gpe) -/******************************************************************************* - * - * FUNCTION: acpi_get_event_status - * - * PARAMETERS: Event - The fixed event - * event_status - Where the current status of the event will - * be returned - * - * RETURN: Status - * - * DESCRIPTION: Obtains and returns the current status of the event - * - ******************************************************************************/ -acpi_status acpi_get_event_status(u32 event, acpi_event_status * event_status) -{ - acpi_status status = AE_OK; - u32 value; - - ACPI_FUNCTION_TRACE(acpi_get_event_status); - - if (!event_status) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Decode the Fixed Event */ - - if (event > ACPI_EVENT_MAX) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Get the status of the requested fixed event */ - - status = - acpi_get_register(acpi_gbl_fixed_event_info[event]. - enable_register_id, &value); - if (ACPI_FAILURE(status)) - return_ACPI_STATUS(status); - - *event_status = value; - - status = - acpi_get_register(acpi_gbl_fixed_event_info[event]. - status_register_id, &value); - if (ACPI_FAILURE(status)) - return_ACPI_STATUS(status); - - if (value) - *event_status |= ACPI_EVENT_FLAG_SET; - - if (acpi_gbl_fixed_event_handlers[event].handler) - *event_status |= ACPI_EVENT_FLAG_HANDLE; - - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_event_status) - -/******************************************************************************* - * - * FUNCTION: acpi_get_gpe_status - * - * PARAMETERS: gpe_device - Parent GPE Device - * gpe_number - GPE level within the GPE block - * Flags - Called from an ISR or not - * event_status - Where the current status of the event will - * be returned - * - * RETURN: Status - * - * DESCRIPTION: Get status of an event (general purpose) - * - ******************************************************************************/ -acpi_status -acpi_get_gpe_status(acpi_handle gpe_device, - u32 gpe_number, u32 flags, acpi_event_status * event_status) -{ - acpi_status status = AE_OK; - struct acpi_gpe_event_info *gpe_event_info; - - ACPI_FUNCTION_TRACE(acpi_get_gpe_status); - - /* Use semaphore lock if not executing at interrupt level */ - - if (flags & ACPI_NOT_ISR) { - status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - - /* Ensure that we have a valid GPE number */ - - gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number); - if (!gpe_event_info) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - /* Obtain status on the requested GPE number */ - - status = acpi_hw_get_gpe_status(gpe_event_info, event_status); - - if (gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) - *event_status |= ACPI_EVENT_FLAG_HANDLE; - - unlock_and_exit: - if (flags & ACPI_NOT_ISR) { - (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); - } - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_gpe_status) -/******************************************************************************* - * - * FUNCTION: acpi_install_gpe_block - * - * PARAMETERS: gpe_device - Handle to the parent GPE Block Device - * gpe_block_address - Address and space_iD - * register_count - Number of GPE register pairs in the block - * interrupt_number - H/W interrupt for the block - * - * RETURN: Status - * - * DESCRIPTION: Create and Install a block of GPE registers - * - ******************************************************************************/ -acpi_status -acpi_install_gpe_block(acpi_handle gpe_device, - struct acpi_generic_address *gpe_block_address, - u32 register_count, u32 interrupt_number) -{ - acpi_status status; - union acpi_operand_object *obj_desc; - struct acpi_namespace_node *node; - struct acpi_gpe_block_info *gpe_block; - - ACPI_FUNCTION_TRACE(acpi_install_gpe_block); - - if ((!gpe_device) || (!gpe_block_address) || (!register_count)) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return (status); - } - - node = acpi_ns_map_handle_to_node(gpe_device); - if (!node) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - /* - * For user-installed GPE Block Devices, the gpe_block_base_number - * is always zero - */ - status = - acpi_ev_create_gpe_block(node, gpe_block_address, register_count, 0, - interrupt_number, &gpe_block); - if (ACPI_FAILURE(status)) { - goto unlock_and_exit; - } - - /* Run the _PRW methods and enable the GPEs */ - - status = acpi_ev_initialize_gpe_block(node, gpe_block); - if (ACPI_FAILURE(status)) { - goto unlock_and_exit; - } - - /* Get the device_object attached to the node */ - - obj_desc = acpi_ns_get_attached_object(node); - if (!obj_desc) { - - /* No object, create a new one */ - - obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_DEVICE); - if (!obj_desc) { - status = AE_NO_MEMORY; - goto unlock_and_exit; - } - - status = - acpi_ns_attach_object(node, obj_desc, ACPI_TYPE_DEVICE); - - /* Remove local reference to the object */ - - acpi_ut_remove_reference(obj_desc); - - if (ACPI_FAILURE(status)) { - goto unlock_and_exit; - } - } - - /* Install the GPE block in the device_object */ - - obj_desc->device.gpe_block = gpe_block; - - unlock_and_exit: - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_install_gpe_block) - -/******************************************************************************* - * - * FUNCTION: acpi_remove_gpe_block - * - * PARAMETERS: gpe_device - Handle to the parent GPE Block Device - * - * RETURN: Status - * - * DESCRIPTION: Remove a previously installed block of GPE registers - * - ******************************************************************************/ -acpi_status acpi_remove_gpe_block(acpi_handle gpe_device) -{ - union acpi_operand_object *obj_desc; - acpi_status status; - struct acpi_namespace_node *node; - - ACPI_FUNCTION_TRACE(acpi_remove_gpe_block); - - if (!gpe_device) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return (status); - } - - node = acpi_ns_map_handle_to_node(gpe_device); - if (!node) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - /* Get the device_object attached to the node */ - - obj_desc = acpi_ns_get_attached_object(node); - if (!obj_desc || !obj_desc->device.gpe_block) { - return_ACPI_STATUS(AE_NULL_OBJECT); - } - - /* Delete the GPE block (but not the device_object) */ - - status = acpi_ev_delete_gpe_block(obj_desc->device.gpe_block); - if (ACPI_SUCCESS(status)) { - obj_desc->device.gpe_block = NULL; - } - - unlock_and_exit: - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_remove_gpe_block) - -/******************************************************************************* - * - * FUNCTION: acpi_get_gpe_device - * - * PARAMETERS: Index - System GPE index (0-current_gpe_count) - * gpe_device - Where the parent GPE Device is returned - * - * RETURN: Status - * - * DESCRIPTION: Obtain the GPE device associated with the input index. A NULL - * gpe device indicates that the gpe number is contained in one of - * the FADT-defined gpe blocks. Otherwise, the GPE block device. - * - ******************************************************************************/ -acpi_status -acpi_get_gpe_device(u32 index, acpi_handle *gpe_device) -{ - struct acpi_gpe_device_info info; - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_get_gpe_device); - - if (!gpe_device) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - if (index >= acpi_current_gpe_count) { - return_ACPI_STATUS(AE_NOT_EXIST); - } - - /* Setup and walk the GPE list */ - - info.index = index; - info.status = AE_NOT_EXIST; - info.gpe_device = NULL; - info.next_block_base_index = 0; - - status = acpi_ev_walk_gpe_list(acpi_ev_get_gpe_device, &info); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - *gpe_device = info.gpe_device; - return_ACPI_STATUS(info.status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_gpe_device) - -/******************************************************************************* - * - * FUNCTION: acpi_ev_get_gpe_device - * - * PARAMETERS: GPE_WALK_CALLBACK - * - * RETURN: Status - * - * DESCRIPTION: Matches the input GPE index (0-current_gpe_count) with a GPE - * block device. NULL if the GPE is one of the FADT-defined GPEs. - * - ******************************************************************************/ -acpi_status -acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info, - struct acpi_gpe_block_info *gpe_block, void *context) -{ - struct acpi_gpe_device_info *info = context; - - /* Increment Index by the number of GPEs in this block */ - - info->next_block_base_index += - (gpe_block->register_count * ACPI_GPE_REGISTER_WIDTH); - - if (info->index < info->next_block_base_index) { - /* - * The GPE index is within this block, get the node. Leave the node - * NULL for the FADT-defined GPEs - */ - if ((gpe_block->node)->type == ACPI_TYPE_DEVICE) { - info->gpe_device = gpe_block->node; - } - - info->status = AE_OK; - return (AE_CTRL_END); - } - - return (AE_OK); -} - -/****************************************************************************** - * - * FUNCTION: acpi_disable_all_gpes - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Disable and clear all GPEs in all GPE blocks - * - ******************************************************************************/ - -acpi_status acpi_disable_all_gpes(void) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_disable_all_gpes); - - status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - status = acpi_hw_disable_all_gpes(); - (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); - - return_ACPI_STATUS(status); -} - -/****************************************************************************** - * - * FUNCTION: acpi_enable_all_runtime_gpes - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Enable all "runtime" GPEs, in all GPE blocks - * - ******************************************************************************/ - -acpi_status acpi_enable_all_runtime_gpes(void) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_enable_all_runtime_gpes); - - status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - status = acpi_hw_enable_all_runtime_gpes(); - (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); - - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/events/evxfregn.c b/drivers/acpi/events/evxfregn.c deleted file mode 100644 index b8633947391b..000000000000 --- a/drivers/acpi/events/evxfregn.c +++ /dev/null @@ -1,254 +0,0 @@ -/****************************************************************************** - * - * Module Name: evxfregn - External Interfaces, ACPI Operation Regions and - * Address Spaces. - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include - -#define _COMPONENT ACPI_EVENTS -ACPI_MODULE_NAME("evxfregn") - -/******************************************************************************* - * - * FUNCTION: acpi_install_address_space_handler - * - * PARAMETERS: Device - Handle for the device - * space_id - The address space ID - * Handler - Address of the handler - * Setup - Address of the setup function - * Context - Value passed to the handler on each access - * - * RETURN: Status - * - * DESCRIPTION: Install a handler for all op_regions of a given space_id. - * - ******************************************************************************/ -acpi_status -acpi_install_address_space_handler(acpi_handle device, - acpi_adr_space_type space_id, - acpi_adr_space_handler handler, - acpi_adr_space_setup setup, void *context) -{ - struct acpi_namespace_node *node; - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_install_address_space_handler); - - /* Parameter validation */ - - if (!device) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Convert and validate the device handle */ - - node = acpi_ns_map_handle_to_node(device); - if (!node) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - /* Install the handler for all Regions for this Space ID */ - - status = - acpi_ev_install_space_handler(node, space_id, handler, setup, - context); - if (ACPI_FAILURE(status)) { - goto unlock_and_exit; - } - - /* Run all _REG methods for this address space */ - - status = acpi_ev_execute_reg_methods(node, space_id); - - unlock_and_exit: - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_install_address_space_handler) - -/******************************************************************************* - * - * FUNCTION: acpi_remove_address_space_handler - * - * PARAMETERS: Device - Handle for the device - * space_id - The address space ID - * Handler - Address of the handler - * - * RETURN: Status - * - * DESCRIPTION: Remove a previously installed handler. - * - ******************************************************************************/ -acpi_status -acpi_remove_address_space_handler(acpi_handle device, - acpi_adr_space_type space_id, - acpi_adr_space_handler handler) -{ - union acpi_operand_object *obj_desc; - union acpi_operand_object *handler_obj; - union acpi_operand_object *region_obj; - union acpi_operand_object **last_obj_ptr; - struct acpi_namespace_node *node; - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_remove_address_space_handler); - - /* Parameter validation */ - - if (!device) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Convert and validate the device handle */ - - node = acpi_ns_map_handle_to_node(device); - if (!node || - ((node->type != ACPI_TYPE_DEVICE) && - (node->type != ACPI_TYPE_PROCESSOR) && - (node->type != ACPI_TYPE_THERMAL) && - (node != acpi_gbl_root_node))) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - /* Make sure the internal object exists */ - - obj_desc = acpi_ns_get_attached_object(node); - if (!obj_desc) { - status = AE_NOT_EXIST; - goto unlock_and_exit; - } - - /* Find the address handler the user requested */ - - handler_obj = obj_desc->device.handler; - last_obj_ptr = &obj_desc->device.handler; - while (handler_obj) { - - /* We have a handler, see if user requested this one */ - - if (handler_obj->address_space.space_id == space_id) { - - /* Handler must be the same as the installed handler */ - - if (handler_obj->address_space.handler != handler) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - /* Matched space_id, first dereference this in the Regions */ - - ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, - "Removing address handler %p(%p) for region %s on Device %p(%p)\n", - handler_obj, handler, - acpi_ut_get_region_name(space_id), - node, obj_desc)); - - region_obj = handler_obj->address_space.region_list; - - /* Walk the handler's region list */ - - while (region_obj) { - /* - * First disassociate the handler from the region. - * - * NOTE: this doesn't mean that the region goes away - * The region is just inaccessible as indicated to - * the _REG method - */ - acpi_ev_detach_region(region_obj, TRUE); - - /* - * Walk the list: Just grab the head because the - * detach_region removed the previous head. - */ - region_obj = - handler_obj->address_space.region_list; - - } - - /* Remove this Handler object from the list */ - - *last_obj_ptr = handler_obj->address_space.next; - - /* Now we can delete the handler object */ - - acpi_ut_remove_reference(handler_obj); - goto unlock_and_exit; - } - - /* Walk the linked list of handlers */ - - last_obj_ptr = &handler_obj->address_space.next; - handler_obj = handler_obj->address_space.next; - } - - /* The handler does not exist */ - - ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, - "Unable to remove address handler %p for %s(%X), DevNode %p, obj %p\n", - handler, acpi_ut_get_region_name(space_id), space_id, - node, obj_desc)); - - status = AE_NOT_EXIST; - - unlock_and_exit: - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_remove_address_space_handler) diff --git a/drivers/acpi/executer/Makefile b/drivers/acpi/executer/Makefile deleted file mode 100644 index e09998aa012f..000000000000 --- a/drivers/acpi/executer/Makefile +++ /dev/null @@ -1,10 +0,0 @@ -# -# Makefile for all Linux ACPI interpreter subdirectories -# - -obj-y := exconfig.o exfield.o exnames.o exoparg6.o exresolv.o exstorob.o\ - exconvrt.o exfldio.o exoparg1.o exprep.o exresop.o exsystem.o\ - excreate.o exmisc.o exoparg2.o exregion.o exstore.o exutils.o \ - exdump.o exmutex.o exoparg3.o exresnte.o exstoren.o - -EXTRA_CFLAGS += $(ACPI_CFLAGS) diff --git a/drivers/acpi/executer/exconfig.c b/drivers/acpi/executer/exconfig.c deleted file mode 100644 index be32d0105fe2..000000000000 --- a/drivers/acpi/executer/exconfig.c +++ /dev/null @@ -1,536 +0,0 @@ -/****************************************************************************** - * - * Module Name: exconfig - Namespace reconfiguration (Load/Unload opcodes) - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_EXECUTER -ACPI_MODULE_NAME("exconfig") - -/* Local prototypes */ -static acpi_status -acpi_ex_add_table(u32 table_index, - struct acpi_namespace_node *parent_node, - union acpi_operand_object **ddb_handle); - -/******************************************************************************* - * - * FUNCTION: acpi_ex_add_table - * - * PARAMETERS: Table - Pointer to raw table - * parent_node - Where to load the table (scope) - * ddb_handle - Where to return the table handle. - * - * RETURN: Status - * - * DESCRIPTION: Common function to Install and Load an ACPI table with a - * returned table handle. - * - ******************************************************************************/ - -static acpi_status -acpi_ex_add_table(u32 table_index, - struct acpi_namespace_node *parent_node, - union acpi_operand_object **ddb_handle) -{ - acpi_status status; - union acpi_operand_object *obj_desc; - - ACPI_FUNCTION_TRACE(ex_add_table); - - /* Create an object to be the table handle */ - - obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_REFERENCE); - if (!obj_desc) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Init the table handle */ - - obj_desc->reference.class = ACPI_REFCLASS_TABLE; - *ddb_handle = obj_desc; - - /* Install the new table into the local data structures */ - - obj_desc->reference.value = table_index; - - /* Add the table to the namespace */ - - status = acpi_ns_load_table(table_index, parent_node); - if (ACPI_FAILURE(status)) { - acpi_ut_remove_reference(obj_desc); - *ddb_handle = NULL; - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_load_table_op - * - * PARAMETERS: walk_state - Current state with operands - * return_desc - Where to store the return object - * - * RETURN: Status - * - * DESCRIPTION: Load an ACPI table from the RSDT/XSDT - * - ******************************************************************************/ - -acpi_status -acpi_ex_load_table_op(struct acpi_walk_state *walk_state, - union acpi_operand_object **return_desc) -{ - acpi_status status; - union acpi_operand_object **operand = &walk_state->operands[0]; - struct acpi_namespace_node *parent_node; - struct acpi_namespace_node *start_node; - struct acpi_namespace_node *parameter_node = NULL; - union acpi_operand_object *ddb_handle; - struct acpi_table_header *table; - u32 table_index; - - ACPI_FUNCTION_TRACE(ex_load_table_op); - - /* Validate lengths for the signature_string, OEMIDString, OEMtable_iD */ - - if ((operand[0]->string.length > ACPI_NAME_SIZE) || - (operand[1]->string.length > ACPI_OEM_ID_SIZE) || - (operand[2]->string.length > ACPI_OEM_TABLE_ID_SIZE)) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Find the ACPI table in the RSDT/XSDT */ - - status = acpi_tb_find_table(operand[0]->string.pointer, - operand[1]->string.pointer, - operand[2]->string.pointer, &table_index); - if (ACPI_FAILURE(status)) { - if (status != AE_NOT_FOUND) { - return_ACPI_STATUS(status); - } - - /* Table not found, return an Integer=0 and AE_OK */ - - ddb_handle = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); - if (!ddb_handle) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - ddb_handle->integer.value = 0; - *return_desc = ddb_handle; - - return_ACPI_STATUS(AE_OK); - } - - /* Default nodes */ - - start_node = walk_state->scope_info->scope.node; - parent_node = acpi_gbl_root_node; - - /* root_path (optional parameter) */ - - if (operand[3]->string.length > 0) { - /* - * Find the node referenced by the root_path_string. This is the - * location within the namespace where the table will be loaded. - */ - status = - acpi_ns_get_node(start_node, operand[3]->string.pointer, - ACPI_NS_SEARCH_PARENT, &parent_node); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - - /* parameter_path (optional parameter) */ - - if (operand[4]->string.length > 0) { - if ((operand[4]->string.pointer[0] != '\\') && - (operand[4]->string.pointer[0] != '^')) { - /* - * Path is not absolute, so it will be relative to the node - * referenced by the root_path_string (or the NS root if omitted) - */ - start_node = parent_node; - } - - /* Find the node referenced by the parameter_path_string */ - - status = - acpi_ns_get_node(start_node, operand[4]->string.pointer, - ACPI_NS_SEARCH_PARENT, ¶meter_node); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - - /* Load the table into the namespace */ - - status = acpi_ex_add_table(table_index, parent_node, &ddb_handle); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Parameter Data (optional) */ - - if (parameter_node) { - - /* Store the parameter data into the optional parameter object */ - - status = acpi_ex_store(operand[5], - ACPI_CAST_PTR(union acpi_operand_object, - parameter_node), - walk_state); - if (ACPI_FAILURE(status)) { - (void)acpi_ex_unload_table(ddb_handle); - return_ACPI_STATUS(status); - } - } - - status = acpi_get_table_by_index(table_index, &table); - if (ACPI_SUCCESS(status)) { - ACPI_INFO((AE_INFO, - "Dynamic OEM Table Load - [%.4s] OemId [%.6s] OemTableId [%.8s]", - table->signature, table->oem_id, - table->oem_table_id)); - } - - /* Invoke table handler if present */ - - if (acpi_gbl_table_handler) { - (void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_LOAD, table, - acpi_gbl_table_handler_context); - } - - *return_desc = ddb_handle; - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_load_op - * - * PARAMETERS: obj_desc - Region or Buffer/Field where the table will be - * obtained - * Target - Where a handle to the table will be stored - * walk_state - Current state - * - * RETURN: Status - * - * DESCRIPTION: Load an ACPI table from a field or operation region - * - * NOTE: Region Fields (Field, bank_field, index_fields) are resolved to buffer - * objects before this code is reached. - * - * If source is an operation region, it must refer to system_memory, as - * per the ACPI specification. - * - ******************************************************************************/ - -acpi_status -acpi_ex_load_op(union acpi_operand_object *obj_desc, - union acpi_operand_object *target, - struct acpi_walk_state *walk_state) -{ - union acpi_operand_object *ddb_handle; - struct acpi_table_header *table; - struct acpi_table_desc table_desc; - u32 table_index; - acpi_status status; - u32 length; - - ACPI_FUNCTION_TRACE(ex_load_op); - - ACPI_MEMSET(&table_desc, 0, sizeof(struct acpi_table_desc)); - - /* Source Object can be either an op_region or a Buffer/Field */ - - switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { - case ACPI_TYPE_REGION: - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Load table from Region %p\n", obj_desc)); - - /* Region must be system_memory (from ACPI spec) */ - - if (obj_desc->region.space_id != ACPI_ADR_SPACE_SYSTEM_MEMORY) { - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - - /* - * If the Region Address and Length have not been previously evaluated, - * evaluate them now and save the results. - */ - if (!(obj_desc->common.flags & AOPOBJ_DATA_VALID)) { - status = acpi_ds_get_region_arguments(obj_desc); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - - /* - * Map the table header and get the actual table length. The region - * length is not guaranteed to be the same as the table length. - */ - table = acpi_os_map_memory(obj_desc->region.address, - sizeof(struct acpi_table_header)); - if (!table) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - length = table->length; - acpi_os_unmap_memory(table, sizeof(struct acpi_table_header)); - - /* Must have at least an ACPI table header */ - - if (length < sizeof(struct acpi_table_header)) { - return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH); - } - - /* - * The memory region is not guaranteed to remain stable and we must - * copy the table to a local buffer. For example, the memory region - * is corrupted after suspend on some machines. Dynamically loaded - * tables are usually small, so this overhead is minimal. - */ - - /* Allocate a buffer for the table */ - - table_desc.pointer = ACPI_ALLOCATE(length); - if (!table_desc.pointer) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Map the entire table and copy it */ - - table = acpi_os_map_memory(obj_desc->region.address, length); - if (!table) { - ACPI_FREE(table_desc.pointer); - return_ACPI_STATUS(AE_NO_MEMORY); - } - - ACPI_MEMCPY(table_desc.pointer, table, length); - acpi_os_unmap_memory(table, length); - - table_desc.address = obj_desc->region.address; - break; - - case ACPI_TYPE_BUFFER: /* Buffer or resolved region_field */ - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Load table from Buffer or Field %p\n", - obj_desc)); - - /* Must have at least an ACPI table header */ - - if (obj_desc->buffer.length < sizeof(struct acpi_table_header)) { - return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH); - } - - /* Get the actual table length from the table header */ - - table = - ACPI_CAST_PTR(struct acpi_table_header, - obj_desc->buffer.pointer); - length = table->length; - - /* Table cannot extend beyond the buffer */ - - if (length > obj_desc->buffer.length) { - return_ACPI_STATUS(AE_AML_BUFFER_LIMIT); - } - if (length < sizeof(struct acpi_table_header)) { - return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH); - } - - /* - * Copy the table from the buffer because the buffer could be modified - * or even deleted in the future - */ - table_desc.pointer = ACPI_ALLOCATE(length); - if (!table_desc.pointer) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - ACPI_MEMCPY(table_desc.pointer, table, length); - table_desc.address = ACPI_TO_INTEGER(table_desc.pointer); - break; - - default: - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - - /* Validate table checksum (will not get validated in tb_add_table) */ - - status = acpi_tb_verify_checksum(table_desc.pointer, length); - if (ACPI_FAILURE(status)) { - ACPI_FREE(table_desc.pointer); - return_ACPI_STATUS(status); - } - - /* Complete the table descriptor */ - - table_desc.length = length; - table_desc.flags = ACPI_TABLE_ORIGIN_ALLOCATED; - - /* Install the new table into the local data structures */ - - status = acpi_tb_add_table(&table_desc, &table_index); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - /* - * Add the table to the namespace. - * - * Note: Load the table objects relative to the root of the namespace. - * This appears to go against the ACPI specification, but we do it for - * compatibility with other ACPI implementations. - */ - status = - acpi_ex_add_table(table_index, acpi_gbl_root_node, &ddb_handle); - if (ACPI_FAILURE(status)) { - - /* On error, table_ptr was deallocated above */ - - return_ACPI_STATUS(status); - } - - /* Store the ddb_handle into the Target operand */ - - status = acpi_ex_store(ddb_handle, target, walk_state); - if (ACPI_FAILURE(status)) { - (void)acpi_ex_unload_table(ddb_handle); - - /* table_ptr was deallocated above */ - - acpi_ut_remove_reference(ddb_handle); - return_ACPI_STATUS(status); - } - - /* Invoke table handler if present */ - - if (acpi_gbl_table_handler) { - (void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_LOAD, - table_desc.pointer, - acpi_gbl_table_handler_context); - } - - cleanup: - if (ACPI_FAILURE(status)) { - - /* Delete allocated table buffer */ - - acpi_tb_delete_table(&table_desc); - } - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_unload_table - * - * PARAMETERS: ddb_handle - Handle to a previously loaded table - * - * RETURN: Status - * - * DESCRIPTION: Unload an ACPI table - * - ******************************************************************************/ - -acpi_status acpi_ex_unload_table(union acpi_operand_object *ddb_handle) -{ - acpi_status status = AE_OK; - union acpi_operand_object *table_desc = ddb_handle; - u32 table_index; - struct acpi_table_header *table; - - ACPI_FUNCTION_TRACE(ex_unload_table); - - /* - * Validate the handle - * Although the handle is partially validated in acpi_ex_reconfiguration(), - * when it calls acpi_ex_resolve_operands(), the handle is more completely - * validated here. - */ - if ((!ddb_handle) || - (ACPI_GET_DESCRIPTOR_TYPE(ddb_handle) != ACPI_DESC_TYPE_OPERAND) || - (ACPI_GET_OBJECT_TYPE(ddb_handle) != ACPI_TYPE_LOCAL_REFERENCE)) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Get the table index from the ddb_handle */ - - table_index = table_desc->reference.value; - - /* Invoke table handler if present */ - - if (acpi_gbl_table_handler) { - status = acpi_get_table_by_index(table_index, &table); - if (ACPI_SUCCESS(status)) { - (void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_UNLOAD, - table, - acpi_gbl_table_handler_context); - } - } - - /* - * Delete the entire namespace under this table Node - * (Offset contains the table_id) - */ - acpi_tb_delete_namespace_by_owner(table_index); - (void)acpi_tb_release_owner_id(table_index); - - acpi_tb_set_table_loaded_flag(table_index, FALSE); - - /* Table unloaded, remove a reference to the ddb_handle object */ - - acpi_ut_remove_reference(ddb_handle); - return_ACPI_STATUS(AE_OK); -} diff --git a/drivers/acpi/executer/exconvrt.c b/drivers/acpi/executer/exconvrt.c deleted file mode 100644 index caeead439e8c..000000000000 --- a/drivers/acpi/executer/exconvrt.c +++ /dev/null @@ -1,692 +0,0 @@ -/****************************************************************************** - * - * Module Name: exconvrt - Object conversion routines - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include - -#define _COMPONENT ACPI_EXECUTER -ACPI_MODULE_NAME("exconvrt") - -/* Local prototypes */ -static u32 -acpi_ex_convert_to_ascii(acpi_integer integer, - u16 base, u8 * string, u8 max_length); - -/******************************************************************************* - * - * FUNCTION: acpi_ex_convert_to_integer - * - * PARAMETERS: obj_desc - Object to be converted. Must be an - * Integer, Buffer, or String - * result_desc - Where the new Integer object is returned - * Flags - Used for string conversion - * - * RETURN: Status - * - * DESCRIPTION: Convert an ACPI Object to an integer. - * - ******************************************************************************/ - -acpi_status -acpi_ex_convert_to_integer(union acpi_operand_object *obj_desc, - union acpi_operand_object **result_desc, u32 flags) -{ - union acpi_operand_object *return_desc; - u8 *pointer; - acpi_integer result; - u32 i; - u32 count; - acpi_status status; - - ACPI_FUNCTION_TRACE_PTR(ex_convert_to_integer, obj_desc); - - switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { - case ACPI_TYPE_INTEGER: - - /* No conversion necessary */ - - *result_desc = obj_desc; - return_ACPI_STATUS(AE_OK); - - case ACPI_TYPE_BUFFER: - case ACPI_TYPE_STRING: - - /* Note: Takes advantage of common buffer/string fields */ - - pointer = obj_desc->buffer.pointer; - count = obj_desc->buffer.length; - break; - - default: - return_ACPI_STATUS(AE_TYPE); - } - - /* - * Convert the buffer/string to an integer. Note that both buffers and - * strings are treated as raw data - we don't convert ascii to hex for - * strings. - * - * There are two terminating conditions for the loop: - * 1) The size of an integer has been reached, or - * 2) The end of the buffer or string has been reached - */ - result = 0; - - /* String conversion is different than Buffer conversion */ - - switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { - case ACPI_TYPE_STRING: - - /* - * Convert string to an integer - for most cases, the string must be - * hexadecimal as per the ACPI specification. The only exception (as - * of ACPI 3.0) is that the to_integer() operator allows both decimal - * and hexadecimal strings (hex prefixed with "0x"). - */ - status = acpi_ut_strtoul64((char *)pointer, flags, &result); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - break; - - case ACPI_TYPE_BUFFER: - - /* Check for zero-length buffer */ - - if (!count) { - return_ACPI_STATUS(AE_AML_BUFFER_LIMIT); - } - - /* Transfer no more than an integer's worth of data */ - - if (count > acpi_gbl_integer_byte_width) { - count = acpi_gbl_integer_byte_width; - } - - /* - * Convert buffer to an integer - we simply grab enough raw data - * from the buffer to fill an integer - */ - for (i = 0; i < count; i++) { - /* - * Get next byte and shift it into the Result. - * Little endian is used, meaning that the first byte of the buffer - * is the LSB of the integer - */ - result |= (((acpi_integer) pointer[i]) << (i * 8)); - } - break; - - default: - - /* No other types can get here */ - break; - } - - /* Create a new integer */ - - return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); - if (!return_desc) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Converted value: %8.8X%8.8X\n", - ACPI_FORMAT_UINT64(result))); - - /* Save the Result */ - - return_desc->integer.value = result; - acpi_ex_truncate_for32bit_table(return_desc); - *result_desc = return_desc; - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_convert_to_buffer - * - * PARAMETERS: obj_desc - Object to be converted. Must be an - * Integer, Buffer, or String - * result_desc - Where the new buffer object is returned - * - * RETURN: Status - * - * DESCRIPTION: Convert an ACPI Object to a Buffer - * - ******************************************************************************/ - -acpi_status -acpi_ex_convert_to_buffer(union acpi_operand_object *obj_desc, - union acpi_operand_object **result_desc) -{ - union acpi_operand_object *return_desc; - u8 *new_buf; - - ACPI_FUNCTION_TRACE_PTR(ex_convert_to_buffer, obj_desc); - - switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { - case ACPI_TYPE_BUFFER: - - /* No conversion necessary */ - - *result_desc = obj_desc; - return_ACPI_STATUS(AE_OK); - - case ACPI_TYPE_INTEGER: - - /* - * Create a new Buffer object. - * Need enough space for one integer - */ - return_desc = - acpi_ut_create_buffer_object(acpi_gbl_integer_byte_width); - if (!return_desc) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Copy the integer to the buffer, LSB first */ - - new_buf = return_desc->buffer.pointer; - ACPI_MEMCPY(new_buf, - &obj_desc->integer.value, - acpi_gbl_integer_byte_width); - break; - - case ACPI_TYPE_STRING: - - /* - * Create a new Buffer object - * Size will be the string length - * - * NOTE: Add one to the string length to include the null terminator. - * The ACPI spec is unclear on this subject, but there is existing - * ASL/AML code that depends on the null being transferred to the new - * buffer. - */ - return_desc = acpi_ut_create_buffer_object((acpi_size) - obj_desc->string. - length + 1); - if (!return_desc) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Copy the string to the buffer */ - - new_buf = return_desc->buffer.pointer; - ACPI_STRNCPY((char *)new_buf, (char *)obj_desc->string.pointer, - obj_desc->string.length); - break; - - default: - return_ACPI_STATUS(AE_TYPE); - } - - /* Mark buffer initialized */ - - return_desc->common.flags |= AOPOBJ_DATA_VALID; - *result_desc = return_desc; - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_convert_to_ascii - * - * PARAMETERS: Integer - Value to be converted - * Base - ACPI_STRING_DECIMAL or ACPI_STRING_HEX - * String - Where the string is returned - * data_width - Size of data item to be converted, in bytes - * - * RETURN: Actual string length - * - * DESCRIPTION: Convert an ACPI Integer to a hex or decimal string - * - ******************************************************************************/ - -static u32 -acpi_ex_convert_to_ascii(acpi_integer integer, - u16 base, u8 * string, u8 data_width) -{ - acpi_integer digit; - u32 i; - u32 j; - u32 k = 0; - u32 hex_length; - u32 decimal_length; - u32 remainder; - u8 supress_zeros; - - ACPI_FUNCTION_ENTRY(); - - switch (base) { - case 10: - - /* Setup max length for the decimal number */ - - switch (data_width) { - case 1: - decimal_length = ACPI_MAX8_DECIMAL_DIGITS; - break; - - case 4: - decimal_length = ACPI_MAX32_DECIMAL_DIGITS; - break; - - case 8: - default: - decimal_length = ACPI_MAX64_DECIMAL_DIGITS; - break; - } - - supress_zeros = TRUE; /* No leading zeros */ - remainder = 0; - - for (i = decimal_length; i > 0; i--) { - - /* Divide by nth factor of 10 */ - - digit = integer; - for (j = 0; j < i; j++) { - (void)acpi_ut_short_divide(digit, 10, &digit, - &remainder); - } - - /* Handle leading zeros */ - - if (remainder != 0) { - supress_zeros = FALSE; - } - - if (!supress_zeros) { - string[k] = (u8) (ACPI_ASCII_ZERO + remainder); - k++; - } - } - break; - - case 16: - - /* hex_length: 2 ascii hex chars per data byte */ - - hex_length = ACPI_MUL_2(data_width); - for (i = 0, j = (hex_length - 1); i < hex_length; i++, j--) { - - /* Get one hex digit, most significant digits first */ - - string[k] = - (u8) acpi_ut_hex_to_ascii_char(integer, - ACPI_MUL_4(j)); - k++; - } - break; - - default: - return (0); - } - - /* - * Since leading zeros are suppressed, we must check for the case where - * the integer equals 0 - * - * Finally, null terminate the string and return the length - */ - if (!k) { - string[0] = ACPI_ASCII_ZERO; - k = 1; - } - - string[k] = 0; - return ((u32) k); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_convert_to_string - * - * PARAMETERS: obj_desc - Object to be converted. Must be an - * Integer, Buffer, or String - * result_desc - Where the string object is returned - * Type - String flags (base and conversion type) - * - * RETURN: Status - * - * DESCRIPTION: Convert an ACPI Object to a string - * - ******************************************************************************/ - -acpi_status -acpi_ex_convert_to_string(union acpi_operand_object * obj_desc, - union acpi_operand_object ** result_desc, u32 type) -{ - union acpi_operand_object *return_desc; - u8 *new_buf; - u32 i; - u32 string_length = 0; - u16 base = 16; - u8 separator = ','; - - ACPI_FUNCTION_TRACE_PTR(ex_convert_to_string, obj_desc); - - switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { - case ACPI_TYPE_STRING: - - /* No conversion necessary */ - - *result_desc = obj_desc; - return_ACPI_STATUS(AE_OK); - - case ACPI_TYPE_INTEGER: - - switch (type) { - case ACPI_EXPLICIT_CONVERT_DECIMAL: - - /* Make room for maximum decimal number */ - - string_length = ACPI_MAX_DECIMAL_DIGITS; - base = 10; - break; - - default: - - /* Two hex string characters for each integer byte */ - - string_length = ACPI_MUL_2(acpi_gbl_integer_byte_width); - break; - } - - /* - * Create a new String - * Need enough space for one ASCII integer (plus null terminator) - */ - return_desc = - acpi_ut_create_string_object((acpi_size) string_length); - if (!return_desc) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - new_buf = return_desc->buffer.pointer; - - /* Convert integer to string */ - - string_length = - acpi_ex_convert_to_ascii(obj_desc->integer.value, base, - new_buf, - acpi_gbl_integer_byte_width); - - /* Null terminate at the correct place */ - - return_desc->string.length = string_length; - new_buf[string_length] = 0; - break; - - case ACPI_TYPE_BUFFER: - - /* Setup string length, base, and separator */ - - switch (type) { - case ACPI_EXPLICIT_CONVERT_DECIMAL: /* Used by to_decimal_string */ - /* - * From ACPI: "If Data is a buffer, it is converted to a string of - * decimal values separated by commas." - */ - base = 10; - - /* - * Calculate the final string length. Individual string values - * are variable length (include separator for each) - */ - for (i = 0; i < obj_desc->buffer.length; i++) { - if (obj_desc->buffer.pointer[i] >= 100) { - string_length += 4; - } else if (obj_desc->buffer.pointer[i] >= 10) { - string_length += 3; - } else { - string_length += 2; - } - } - break; - - case ACPI_IMPLICIT_CONVERT_HEX: - /* - * From the ACPI spec: - *"The entire contents of the buffer are converted to a string of - * two-character hexadecimal numbers, each separated by a space." - */ - separator = ' '; - string_length = (obj_desc->buffer.length * 3); - break; - - case ACPI_EXPLICIT_CONVERT_HEX: /* Used by to_hex_string */ - /* - * From ACPI: "If Data is a buffer, it is converted to a string of - * hexadecimal values separated by commas." - */ - string_length = (obj_desc->buffer.length * 3); - break; - - default: - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* - * Create a new string object and string buffer - * (-1 because of extra separator included in string_length from above) - * Allow creation of zero-length strings from zero-length buffers. - */ - if (string_length) { - string_length--; - } - - return_desc = acpi_ut_create_string_object((acpi_size) - string_length); - if (!return_desc) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - new_buf = return_desc->buffer.pointer; - - /* - * Convert buffer bytes to hex or decimal values - * (separated by commas or spaces) - */ - for (i = 0; i < obj_desc->buffer.length; i++) { - new_buf += acpi_ex_convert_to_ascii((acpi_integer) - obj_desc->buffer. - pointer[i], base, - new_buf, 1); - *new_buf++ = separator; /* each separated by a comma or space */ - } - - /* - * Null terminate the string - * (overwrites final comma/space from above) - */ - if (obj_desc->buffer.length) { - new_buf--; - } - *new_buf = 0; - break; - - default: - return_ACPI_STATUS(AE_TYPE); - } - - *result_desc = return_desc; - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_convert_to_target_type - * - * PARAMETERS: destination_type - Current type of the destination - * source_desc - Source object to be converted. - * result_desc - Where the converted object is returned - * walk_state - Current method state - * - * RETURN: Status - * - * DESCRIPTION: Implements "implicit conversion" rules for storing an object. - * - ******************************************************************************/ - -acpi_status -acpi_ex_convert_to_target_type(acpi_object_type destination_type, - union acpi_operand_object *source_desc, - union acpi_operand_object **result_desc, - struct acpi_walk_state *walk_state) -{ - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(ex_convert_to_target_type); - - /* Default behavior */ - - *result_desc = source_desc; - - /* - * If required by the target, - * perform implicit conversion on the source before we store it. - */ - switch (GET_CURRENT_ARG_TYPE(walk_state->op_info->runtime_args)) { - case ARGI_SIMPLE_TARGET: - case ARGI_FIXED_TARGET: - case ARGI_INTEGER_REF: /* Handles Increment, Decrement cases */ - - switch (destination_type) { - case ACPI_TYPE_LOCAL_REGION_FIELD: - /* - * Named field can always handle conversions - */ - break; - - default: - /* No conversion allowed for these types */ - - if (destination_type != - ACPI_GET_OBJECT_TYPE(source_desc)) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Explicit operator, will store (%s) over existing type (%s)\n", - acpi_ut_get_object_type_name - (source_desc), - acpi_ut_get_type_name - (destination_type))); - status = AE_TYPE; - } - } - break; - - case ARGI_TARGETREF: - - switch (destination_type) { - case ACPI_TYPE_INTEGER: - case ACPI_TYPE_BUFFER_FIELD: - case ACPI_TYPE_LOCAL_BANK_FIELD: - case ACPI_TYPE_LOCAL_INDEX_FIELD: - /* - * These types require an Integer operand. We can convert - * a Buffer or a String to an Integer if necessary. - */ - status = - acpi_ex_convert_to_integer(source_desc, result_desc, - 16); - break; - - case ACPI_TYPE_STRING: - /* - * The operand must be a String. We can convert an - * Integer or Buffer if necessary - */ - status = - acpi_ex_convert_to_string(source_desc, result_desc, - ACPI_IMPLICIT_CONVERT_HEX); - break; - - case ACPI_TYPE_BUFFER: - /* - * The operand must be a Buffer. We can convert an - * Integer or String if necessary - */ - status = - acpi_ex_convert_to_buffer(source_desc, result_desc); - break; - - default: - ACPI_ERROR((AE_INFO, - "Bad destination type during conversion: %X", - destination_type)); - status = AE_AML_INTERNAL; - break; - } - break; - - case ARGI_REFERENCE: - /* - * create_xxxx_field cases - we are storing the field object into the name - */ - break; - - default: - ACPI_ERROR((AE_INFO, - "Unknown Target type ID 0x%X AmlOpcode %X DestType %s", - GET_CURRENT_ARG_TYPE(walk_state->op_info-> - runtime_args), - walk_state->opcode, - acpi_ut_get_type_name(destination_type))); - status = AE_AML_INTERNAL; - } - - /* - * Source-to-Target conversion semantics: - * - * If conversion to the target type cannot be performed, then simply - * overwrite the target with the new object and type. - */ - if (status == AE_TYPE) { - status = AE_OK; - } - - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/executer/excreate.c b/drivers/acpi/executer/excreate.c deleted file mode 100644 index 5aa65a214fc2..000000000000 --- a/drivers/acpi/executer/excreate.c +++ /dev/null @@ -1,522 +0,0 @@ -/****************************************************************************** - * - * Module Name: excreate - Named object creation - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_EXECUTER -ACPI_MODULE_NAME("excreate") -#ifndef ACPI_NO_METHOD_EXECUTION -/******************************************************************************* - * - * FUNCTION: acpi_ex_create_alias - * - * PARAMETERS: walk_state - Current state, contains operands - * - * RETURN: Status - * - * DESCRIPTION: Create a new named alias - * - ******************************************************************************/ -acpi_status acpi_ex_create_alias(struct acpi_walk_state *walk_state) -{ - struct acpi_namespace_node *target_node; - struct acpi_namespace_node *alias_node; - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(ex_create_alias); - - /* Get the source/alias operands (both namespace nodes) */ - - alias_node = (struct acpi_namespace_node *)walk_state->operands[0]; - target_node = (struct acpi_namespace_node *)walk_state->operands[1]; - - if ((target_node->type == ACPI_TYPE_LOCAL_ALIAS) || - (target_node->type == ACPI_TYPE_LOCAL_METHOD_ALIAS)) { - /* - * Dereference an existing alias so that we don't create a chain - * of aliases. With this code, we guarantee that an alias is - * always exactly one level of indirection away from the - * actual aliased name. - */ - target_node = - ACPI_CAST_PTR(struct acpi_namespace_node, - target_node->object); - } - - /* - * For objects that can never change (i.e., the NS node will - * permanently point to the same object), we can simply attach - * the object to the new NS node. For other objects (such as - * Integers, buffers, etc.), we have to point the Alias node - * to the original Node. - */ - switch (target_node->type) { - - /* For these types, the sub-object can change dynamically via a Store */ - - case ACPI_TYPE_INTEGER: - case ACPI_TYPE_STRING: - case ACPI_TYPE_BUFFER: - case ACPI_TYPE_PACKAGE: - case ACPI_TYPE_BUFFER_FIELD: - - /* - * These types open a new scope, so we need the NS node in order to access - * any children. - */ - case ACPI_TYPE_DEVICE: - case ACPI_TYPE_POWER: - case ACPI_TYPE_PROCESSOR: - case ACPI_TYPE_THERMAL: - case ACPI_TYPE_LOCAL_SCOPE: - - /* - * The new alias has the type ALIAS and points to the original - * NS node, not the object itself. - */ - alias_node->type = ACPI_TYPE_LOCAL_ALIAS; - alias_node->object = - ACPI_CAST_PTR(union acpi_operand_object, target_node); - break; - - case ACPI_TYPE_METHOD: - - /* - * Control method aliases need to be differentiated - */ - alias_node->type = ACPI_TYPE_LOCAL_METHOD_ALIAS; - alias_node->object = - ACPI_CAST_PTR(union acpi_operand_object, target_node); - break; - - default: - - /* Attach the original source object to the new Alias Node */ - - /* - * The new alias assumes the type of the target, and it points - * to the same object. The reference count of the object has an - * additional reference to prevent deletion out from under either the - * target node or the alias Node - */ - status = acpi_ns_attach_object(alias_node, - acpi_ns_get_attached_object - (target_node), - target_node->type); - break; - } - - /* Since both operands are Nodes, we don't need to delete them */ - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_create_event - * - * PARAMETERS: walk_state - Current state - * - * RETURN: Status - * - * DESCRIPTION: Create a new event object - * - ******************************************************************************/ - -acpi_status acpi_ex_create_event(struct acpi_walk_state *walk_state) -{ - acpi_status status; - union acpi_operand_object *obj_desc; - - ACPI_FUNCTION_TRACE(ex_create_event); - - obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_EVENT); - if (!obj_desc) { - status = AE_NO_MEMORY; - goto cleanup; - } - - /* - * Create the actual OS semaphore, with zero initial units -- meaning - * that the event is created in an unsignalled state - */ - status = acpi_os_create_semaphore(ACPI_NO_UNIT_LIMIT, 0, - &obj_desc->event.os_semaphore); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - /* Attach object to the Node */ - - status = - acpi_ns_attach_object((struct acpi_namespace_node *)walk_state-> - operands[0], obj_desc, ACPI_TYPE_EVENT); - - cleanup: - /* - * Remove local reference to the object (on error, will cause deletion - * of both object and semaphore if present.) - */ - acpi_ut_remove_reference(obj_desc); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_create_mutex - * - * PARAMETERS: walk_state - Current state - * - * RETURN: Status - * - * DESCRIPTION: Create a new mutex object - * - * Mutex (Name[0], sync_level[1]) - * - ******************************************************************************/ - -acpi_status acpi_ex_create_mutex(struct acpi_walk_state *walk_state) -{ - acpi_status status = AE_OK; - union acpi_operand_object *obj_desc; - - ACPI_FUNCTION_TRACE_PTR(ex_create_mutex, ACPI_WALK_OPERANDS); - - /* Create the new mutex object */ - - obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_MUTEX); - if (!obj_desc) { - status = AE_NO_MEMORY; - goto cleanup; - } - - /* Create the actual OS Mutex */ - - status = acpi_os_create_mutex(&obj_desc->mutex.os_mutex); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - /* Init object and attach to NS node */ - - obj_desc->mutex.sync_level = - (u8) walk_state->operands[1]->integer.value; - obj_desc->mutex.node = - (struct acpi_namespace_node *)walk_state->operands[0]; - - status = - acpi_ns_attach_object(obj_desc->mutex.node, obj_desc, - ACPI_TYPE_MUTEX); - - cleanup: - /* - * Remove local reference to the object (on error, will cause deletion - * of both object and semaphore if present.) - */ - acpi_ut_remove_reference(obj_desc); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_create_region - * - * PARAMETERS: aml_start - Pointer to the region declaration AML - * aml_length - Max length of the declaration AML - * region_space - space_iD for the region - * walk_state - Current state - * - * RETURN: Status - * - * DESCRIPTION: Create a new operation region object - * - ******************************************************************************/ - -acpi_status -acpi_ex_create_region(u8 * aml_start, - u32 aml_length, - u8 region_space, struct acpi_walk_state *walk_state) -{ - acpi_status status; - union acpi_operand_object *obj_desc; - struct acpi_namespace_node *node; - union acpi_operand_object *region_obj2; - - ACPI_FUNCTION_TRACE(ex_create_region); - - /* Get the Namespace Node */ - - node = walk_state->op->common.node; - - /* - * If the region object is already attached to this node, - * just return - */ - if (acpi_ns_get_attached_object(node)) { - return_ACPI_STATUS(AE_OK); - } - - /* - * Space ID must be one of the predefined IDs, or in the user-defined - * range - */ - if ((region_space >= ACPI_NUM_PREDEFINED_REGIONS) && - (region_space < ACPI_USER_REGION_BEGIN)) { - ACPI_ERROR((AE_INFO, "Invalid AddressSpace type %X", - region_space)); - return_ACPI_STATUS(AE_AML_INVALID_SPACE_ID); - } - - ACPI_DEBUG_PRINT((ACPI_DB_LOAD, "Region Type - %s (%X)\n", - acpi_ut_get_region_name(region_space), region_space)); - - /* Create the region descriptor */ - - obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_REGION); - if (!obj_desc) { - status = AE_NO_MEMORY; - goto cleanup; - } - - /* - * Remember location in AML stream of address & length - * operands since they need to be evaluated at run time. - */ - region_obj2 = obj_desc->common.next_object; - region_obj2->extra.aml_start = aml_start; - region_obj2->extra.aml_length = aml_length; - - /* Init the region from the operands */ - - obj_desc->region.space_id = region_space; - obj_desc->region.address = 0; - obj_desc->region.length = 0; - obj_desc->region.node = node; - - /* Install the new region object in the parent Node */ - - status = acpi_ns_attach_object(node, obj_desc, ACPI_TYPE_REGION); - - cleanup: - - /* Remove local reference to the object */ - - acpi_ut_remove_reference(obj_desc); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_create_processor - * - * PARAMETERS: walk_state - Current state - * - * RETURN: Status - * - * DESCRIPTION: Create a new processor object and populate the fields - * - * Processor (Name[0], cpu_iD[1], pblock_addr[2], pblock_length[3]) - * - ******************************************************************************/ - -acpi_status acpi_ex_create_processor(struct acpi_walk_state *walk_state) -{ - union acpi_operand_object **operand = &walk_state->operands[0]; - union acpi_operand_object *obj_desc; - acpi_status status; - - ACPI_FUNCTION_TRACE_PTR(ex_create_processor, walk_state); - - /* Create the processor object */ - - obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_PROCESSOR); - if (!obj_desc) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Initialize the processor object from the operands */ - - obj_desc->processor.proc_id = (u8) operand[1]->integer.value; - obj_desc->processor.length = (u8) operand[3]->integer.value; - obj_desc->processor.address = - (acpi_io_address) operand[2]->integer.value; - - /* Install the processor object in the parent Node */ - - status = acpi_ns_attach_object((struct acpi_namespace_node *)operand[0], - obj_desc, ACPI_TYPE_PROCESSOR); - - /* Remove local reference to the object */ - - acpi_ut_remove_reference(obj_desc); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_create_power_resource - * - * PARAMETERS: walk_state - Current state - * - * RETURN: Status - * - * DESCRIPTION: Create a new power_resource object and populate the fields - * - * power_resource (Name[0], system_level[1], resource_order[2]) - * - ******************************************************************************/ - -acpi_status acpi_ex_create_power_resource(struct acpi_walk_state *walk_state) -{ - union acpi_operand_object **operand = &walk_state->operands[0]; - acpi_status status; - union acpi_operand_object *obj_desc; - - ACPI_FUNCTION_TRACE_PTR(ex_create_power_resource, walk_state); - - /* Create the power resource object */ - - obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_POWER); - if (!obj_desc) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Initialize the power object from the operands */ - - obj_desc->power_resource.system_level = (u8) operand[1]->integer.value; - obj_desc->power_resource.resource_order = - (u16) operand[2]->integer.value; - - /* Install the power resource object in the parent Node */ - - status = acpi_ns_attach_object((struct acpi_namespace_node *)operand[0], - obj_desc, ACPI_TYPE_POWER); - - /* Remove local reference to the object */ - - acpi_ut_remove_reference(obj_desc); - return_ACPI_STATUS(status); -} -#endif - -/******************************************************************************* - * - * FUNCTION: acpi_ex_create_method - * - * PARAMETERS: aml_start - First byte of the method's AML - * aml_length - AML byte count for this method - * walk_state - Current state - * - * RETURN: Status - * - * DESCRIPTION: Create a new method object - * - ******************************************************************************/ - -acpi_status -acpi_ex_create_method(u8 * aml_start, - u32 aml_length, struct acpi_walk_state *walk_state) -{ - union acpi_operand_object **operand = &walk_state->operands[0]; - union acpi_operand_object *obj_desc; - acpi_status status; - u8 method_flags; - - ACPI_FUNCTION_TRACE_PTR(ex_create_method, walk_state); - - /* Create a new method object */ - - obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_METHOD); - if (!obj_desc) { - status = AE_NO_MEMORY; - goto exit; - } - - /* Save the method's AML pointer and length */ - - obj_desc->method.aml_start = aml_start; - obj_desc->method.aml_length = aml_length; - - /* - * Disassemble the method flags. Split off the Arg Count - * for efficiency - */ - method_flags = (u8) operand[1]->integer.value; - - obj_desc->method.method_flags = - (u8) (method_flags & ~AML_METHOD_ARG_COUNT); - obj_desc->method.param_count = - (u8) (method_flags & AML_METHOD_ARG_COUNT); - - /* - * Get the sync_level. If method is serialized, a mutex will be - * created for this method when it is parsed. - */ - if (method_flags & AML_METHOD_SERIALIZED) { - /* - * ACPI 1.0: sync_level = 0 - * ACPI 2.0: sync_level = sync_level in method declaration - */ - obj_desc->method.sync_level = (u8) - ((method_flags & AML_METHOD_SYNCH_LEVEL) >> 4); - } - - /* Attach the new object to the method Node */ - - status = acpi_ns_attach_object((struct acpi_namespace_node *)operand[0], - obj_desc, ACPI_TYPE_METHOD); - - /* Remove local reference to the object */ - - acpi_ut_remove_reference(obj_desc); - - exit: - /* Remove a reference to the operand */ - - acpi_ut_remove_reference(operand[1]); - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/executer/exdump.c b/drivers/acpi/executer/exdump.c deleted file mode 100644 index 8241b9eff6c1..000000000000 --- a/drivers/acpi/executer/exdump.c +++ /dev/null @@ -1,1060 +0,0 @@ -/****************************************************************************** - * - * Module Name: exdump - Interpreter debug output routines - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_EXECUTER -ACPI_MODULE_NAME("exdump") - -/* - * The following routines are used for debug output only - */ -#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) -/* Local prototypes */ -static void acpi_ex_out_string(char *title, char *value); - -static void acpi_ex_out_pointer(char *title, void *value); - -static void -acpi_ex_dump_object(union acpi_operand_object *obj_desc, - struct acpi_exdump_info *info); - -static void acpi_ex_dump_reference_obj(union acpi_operand_object *obj_desc); - -static void -acpi_ex_dump_package_obj(union acpi_operand_object *obj_desc, - u32 level, u32 index); - -/******************************************************************************* - * - * Object Descriptor info tables - * - * Note: The first table entry must be an INIT opcode and must contain - * the table length (number of table entries) - * - ******************************************************************************/ - -static struct acpi_exdump_info acpi_ex_dump_integer[2] = { - {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_integer), NULL}, - {ACPI_EXD_UINT64, ACPI_EXD_OFFSET(integer.value), "Value"} -}; - -static struct acpi_exdump_info acpi_ex_dump_string[4] = { - {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_string), NULL}, - {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(string.length), "Length"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(string.pointer), "Pointer"}, - {ACPI_EXD_STRING, 0, NULL} -}; - -static struct acpi_exdump_info acpi_ex_dump_buffer[5] = { - {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_buffer), NULL}, - {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(buffer.length), "Length"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(buffer.pointer), "Pointer"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(buffer.node), "Parent Node"}, - {ACPI_EXD_BUFFER, 0, NULL} -}; - -static struct acpi_exdump_info acpi_ex_dump_package[5] = { - {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_package), NULL}, - {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(package.flags), "Flags"}, - {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(package.count), "Elements"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(package.elements), "Element List"}, - {ACPI_EXD_PACKAGE, 0, NULL} -}; - -static struct acpi_exdump_info acpi_ex_dump_device[4] = { - {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_device), NULL}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(device.handler), "Handler"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(device.system_notify), - "System Notify"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(device.device_notify), - "Device Notify"} -}; - -static struct acpi_exdump_info acpi_ex_dump_event[2] = { - {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_event), NULL}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(event.os_semaphore), "OsSemaphore"} -}; - -static struct acpi_exdump_info acpi_ex_dump_method[8] = { - {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_method), NULL}, - {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.param_count), "ParamCount"}, - {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.sync_level), "Sync Level"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(method.mutex), "Mutex"}, - {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.owner_id), "Owner Id"}, - {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.thread_count), "Thread Count"}, - {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(method.aml_length), "Aml Length"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(method.aml_start), "Aml Start"} -}; - -static struct acpi_exdump_info acpi_ex_dump_mutex[5] = { - {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_mutex), NULL}, - {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(mutex.sync_level), "Sync Level"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(mutex.owner_thread), "Owner Thread"}, - {ACPI_EXD_UINT16, ACPI_EXD_OFFSET(mutex.acquisition_depth), - "Acquire Depth"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(mutex.os_mutex), "OsMutex"} -}; - -static struct acpi_exdump_info acpi_ex_dump_region[7] = { - {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_region), NULL}, - {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(region.space_id), "Space Id"}, - {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(region.flags), "Flags"}, - {ACPI_EXD_ADDRESS, ACPI_EXD_OFFSET(region.address), "Address"}, - {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(region.length), "Length"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(region.handler), "Handler"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(region.next), "Next"} -}; - -static struct acpi_exdump_info acpi_ex_dump_power[5] = { - {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_power), NULL}, - {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(power_resource.system_level), - "System Level"}, - {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(power_resource.resource_order), - "Resource Order"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(power_resource.system_notify), - "System Notify"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(power_resource.device_notify), - "Device Notify"} -}; - -static struct acpi_exdump_info acpi_ex_dump_processor[7] = { - {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_processor), NULL}, - {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(processor.proc_id), "Processor ID"}, - {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(processor.length), "Length"}, - {ACPI_EXD_ADDRESS, ACPI_EXD_OFFSET(processor.address), "Address"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(processor.system_notify), - "System Notify"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(processor.device_notify), - "Device Notify"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(processor.handler), "Handler"} -}; - -static struct acpi_exdump_info acpi_ex_dump_thermal[4] = { - {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_thermal), NULL}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(thermal_zone.system_notify), - "System Notify"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(thermal_zone.device_notify), - "Device Notify"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(thermal_zone.handler), "Handler"} -}; - -static struct acpi_exdump_info acpi_ex_dump_buffer_field[3] = { - {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_buffer_field), NULL}, - {ACPI_EXD_FIELD, 0, NULL}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(buffer_field.buffer_obj), - "Buffer Object"} -}; - -static struct acpi_exdump_info acpi_ex_dump_region_field[3] = { - {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_region_field), NULL}, - {ACPI_EXD_FIELD, 0, NULL}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(field.region_obj), "Region Object"} -}; - -static struct acpi_exdump_info acpi_ex_dump_bank_field[5] = { - {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_bank_field), NULL}, - {ACPI_EXD_FIELD, 0, NULL}, - {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(bank_field.value), "Value"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(bank_field.region_obj), - "Region Object"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(bank_field.bank_obj), "Bank Object"} -}; - -static struct acpi_exdump_info acpi_ex_dump_index_field[5] = { - {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_bank_field), NULL}, - {ACPI_EXD_FIELD, 0, NULL}, - {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(index_field.value), "Value"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(index_field.index_obj), - "Index Object"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(index_field.data_obj), "Data Object"} -}; - -static struct acpi_exdump_info acpi_ex_dump_reference[8] = { - {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_reference), NULL}, - {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(reference.class), "Class"}, - {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(reference.target_type), "Target Type"}, - {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(reference.value), "Value"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(reference.object), "Object Desc"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(reference.node), "Node"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(reference.where), "Where"}, - {ACPI_EXD_REFERENCE, 0, NULL} -}; - -static struct acpi_exdump_info acpi_ex_dump_address_handler[6] = { - {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_address_handler), - NULL}, - {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(address_space.space_id), "Space Id"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(address_space.next), "Next"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(address_space.region_list), - "Region List"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(address_space.node), "Node"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(address_space.context), "Context"} -}; - -static struct acpi_exdump_info acpi_ex_dump_notify[3] = { - {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_notify), NULL}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(notify.node), "Node"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(notify.context), "Context"} -}; - -/* Miscellaneous tables */ - -static struct acpi_exdump_info acpi_ex_dump_common[4] = { - {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_common), NULL}, - {ACPI_EXD_TYPE, 0, NULL}, - {ACPI_EXD_UINT16, ACPI_EXD_OFFSET(common.reference_count), - "Reference Count"}, - {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(common.flags), "Flags"} -}; - -static struct acpi_exdump_info acpi_ex_dump_field_common[7] = { - {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_field_common), NULL}, - {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(common_field.field_flags), - "Field Flags"}, - {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(common_field.access_byte_width), - "Access Byte Width"}, - {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(common_field.bit_length), - "Bit Length"}, - {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(common_field.start_field_bit_offset), - "Field Bit Offset"}, - {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(common_field.base_byte_offset), - "Base Byte Offset"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(common_field.node), "Parent Node"} -}; - -static struct acpi_exdump_info acpi_ex_dump_node[5] = { - {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_node), NULL}, - {ACPI_EXD_UINT8, ACPI_EXD_NSOFFSET(flags), "Flags"}, - {ACPI_EXD_UINT8, ACPI_EXD_NSOFFSET(owner_id), "Owner Id"}, - {ACPI_EXD_POINTER, ACPI_EXD_NSOFFSET(child), "Child List"}, - {ACPI_EXD_POINTER, ACPI_EXD_NSOFFSET(peer), "Next Peer"} -}; - -/* Dispatch table, indexed by object type */ - -static struct acpi_exdump_info *acpi_ex_dump_info[] = { - NULL, - acpi_ex_dump_integer, - acpi_ex_dump_string, - acpi_ex_dump_buffer, - acpi_ex_dump_package, - NULL, - acpi_ex_dump_device, - acpi_ex_dump_event, - acpi_ex_dump_method, - acpi_ex_dump_mutex, - acpi_ex_dump_region, - acpi_ex_dump_power, - acpi_ex_dump_processor, - acpi_ex_dump_thermal, - acpi_ex_dump_buffer_field, - NULL, - NULL, - acpi_ex_dump_region_field, - acpi_ex_dump_bank_field, - acpi_ex_dump_index_field, - acpi_ex_dump_reference, - NULL, - NULL, - acpi_ex_dump_notify, - acpi_ex_dump_address_handler, - NULL, - NULL, - NULL -}; - -/******************************************************************************* - * - * FUNCTION: acpi_ex_dump_object - * - * PARAMETERS: obj_desc - Descriptor to dump - * Info - Info table corresponding to this object - * type - * - * RETURN: None - * - * DESCRIPTION: Walk the info table for this object - * - ******************************************************************************/ - -static void -acpi_ex_dump_object(union acpi_operand_object *obj_desc, - struct acpi_exdump_info *info) -{ - u8 *target; - char *name; - u8 count; - - if (!info) { - acpi_os_printf - ("ExDumpObject: Display not implemented for object type %s\n", - acpi_ut_get_object_type_name(obj_desc)); - return; - } - - /* First table entry must contain the table length (# of table entries) */ - - count = info->offset; - - while (count) { - target = ACPI_ADD_PTR(u8, obj_desc, info->offset); - name = info->name; - - switch (info->opcode) { - case ACPI_EXD_INIT: - break; - - case ACPI_EXD_TYPE: - acpi_ex_out_string("Type", - acpi_ut_get_object_type_name - (obj_desc)); - break; - - case ACPI_EXD_UINT8: - - acpi_os_printf("%20s : %2.2X\n", name, *target); - break; - - case ACPI_EXD_UINT16: - - acpi_os_printf("%20s : %4.4X\n", name, - ACPI_GET16(target)); - break; - - case ACPI_EXD_UINT32: - - acpi_os_printf("%20s : %8.8X\n", name, - ACPI_GET32(target)); - break; - - case ACPI_EXD_UINT64: - - acpi_os_printf("%20s : %8.8X%8.8X\n", "Value", - ACPI_FORMAT_UINT64(ACPI_GET64(target))); - break; - - case ACPI_EXD_POINTER: - case ACPI_EXD_ADDRESS: - - acpi_ex_out_pointer(name, - *ACPI_CAST_PTR(void *, target)); - break; - - case ACPI_EXD_STRING: - - acpi_ut_print_string(obj_desc->string.pointer, - ACPI_UINT8_MAX); - acpi_os_printf("\n"); - break; - - case ACPI_EXD_BUFFER: - - ACPI_DUMP_BUFFER(obj_desc->buffer.pointer, - obj_desc->buffer.length); - break; - - case ACPI_EXD_PACKAGE: - - /* Dump the package contents */ - - acpi_os_printf("\nPackage Contents:\n"); - acpi_ex_dump_package_obj(obj_desc, 0, 0); - break; - - case ACPI_EXD_FIELD: - - acpi_ex_dump_object(obj_desc, - acpi_ex_dump_field_common); - break; - - case ACPI_EXD_REFERENCE: - - acpi_ex_out_string("Class Name", - (char *) - acpi_ut_get_reference_name - (obj_desc)); - acpi_ex_dump_reference_obj(obj_desc); - break; - - default: - acpi_os_printf("**** Invalid table opcode [%X] ****\n", - info->opcode); - return; - } - - info++; - count--; - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_dump_operand - * - * PARAMETERS: *obj_desc - Pointer to entry to be dumped - * Depth - Current nesting depth - * - * RETURN: None - * - * DESCRIPTION: Dump an operand object - * - ******************************************************************************/ - -void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth) -{ - u32 length; - u32 index; - - ACPI_FUNCTION_NAME(ex_dump_operand) - - if (!((ACPI_LV_EXEC & acpi_dbg_level) - && (_COMPONENT & acpi_dbg_layer))) { - return; - } - - if (!obj_desc) { - - /* This could be a null element of a package */ - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Null Object Descriptor\n")); - return; - } - - if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == ACPI_DESC_TYPE_NAMED) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%p Namespace Node: ", - obj_desc)); - ACPI_DUMP_ENTRY(obj_desc, ACPI_LV_EXEC); - return; - } - - if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != ACPI_DESC_TYPE_OPERAND) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "%p is not a node or operand object: [%s]\n", - obj_desc, - acpi_ut_get_descriptor_name(obj_desc))); - ACPI_DUMP_BUFFER(obj_desc, sizeof(union acpi_operand_object)); - return; - } - - /* obj_desc is a valid object */ - - if (depth > 0) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%*s[%u] %p ", - depth, " ", depth, obj_desc)); - } else { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%p ", obj_desc)); - } - - /* Decode object type */ - - switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { - case ACPI_TYPE_LOCAL_REFERENCE: - - acpi_os_printf("Reference: [%s] ", - acpi_ut_get_reference_name(obj_desc)); - - switch (obj_desc->reference.class) { - case ACPI_REFCLASS_DEBUG: - - acpi_os_printf("\n"); - break; - - case ACPI_REFCLASS_INDEX: - - acpi_os_printf("%p\n", obj_desc->reference.object); - break; - - case ACPI_REFCLASS_TABLE: - - acpi_os_printf("Table Index %X\n", - obj_desc->reference.value); - break; - - case ACPI_REFCLASS_REFOF: - - acpi_os_printf("%p [%s]\n", obj_desc->reference.object, - acpi_ut_get_type_name(((union - acpi_operand_object - *) - obj_desc-> - reference. - object)->common. - type)); - break; - - case ACPI_REFCLASS_ARG: - - acpi_os_printf("%X", obj_desc->reference.value); - - if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) { - - /* Value is an Integer */ - - acpi_os_printf(" value is [%8.8X%8.8x]", - ACPI_FORMAT_UINT64(obj_desc-> - integer. - value)); - } - - acpi_os_printf("\n"); - break; - - case ACPI_REFCLASS_LOCAL: - - acpi_os_printf("%X", obj_desc->reference.value); - - if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) { - - /* Value is an Integer */ - - acpi_os_printf(" value is [%8.8X%8.8x]", - ACPI_FORMAT_UINT64(obj_desc-> - integer. - value)); - } - - acpi_os_printf("\n"); - break; - - case ACPI_REFCLASS_NAME: - - acpi_os_printf("- [%4.4s]\n", - obj_desc->reference.node->name.ascii); - break; - - default: /* Unknown reference class */ - - acpi_os_printf("%2.2X\n", obj_desc->reference.class); - break; - } - break; - - case ACPI_TYPE_BUFFER: - - acpi_os_printf("Buffer length %.2X @ %p\n", - obj_desc->buffer.length, - obj_desc->buffer.pointer); - - /* Debug only -- dump the buffer contents */ - - if (obj_desc->buffer.pointer) { - length = obj_desc->buffer.length; - if (length > 128) { - length = 128; - } - - acpi_os_printf - ("Buffer Contents: (displaying length 0x%.2X)\n", - length); - ACPI_DUMP_BUFFER(obj_desc->buffer.pointer, length); - } - break; - - case ACPI_TYPE_INTEGER: - - acpi_os_printf("Integer %8.8X%8.8X\n", - ACPI_FORMAT_UINT64(obj_desc->integer.value)); - break; - - case ACPI_TYPE_PACKAGE: - - acpi_os_printf("Package [Len %X] ElementArray %p\n", - obj_desc->package.count, - obj_desc->package.elements); - - /* - * If elements exist, package element pointer is valid, - * and debug_level exceeds 1, dump package's elements. - */ - if (obj_desc->package.count && - obj_desc->package.elements && acpi_dbg_level > 1) { - for (index = 0; index < obj_desc->package.count; - index++) { - acpi_ex_dump_operand(obj_desc->package. - elements[index], - depth + 1); - } - } - break; - - case ACPI_TYPE_REGION: - - acpi_os_printf("Region %s (%X)", - acpi_ut_get_region_name(obj_desc->region. - space_id), - obj_desc->region.space_id); - - /* - * If the address and length have not been evaluated, - * don't print them. - */ - if (!(obj_desc->region.flags & AOPOBJ_DATA_VALID)) { - acpi_os_printf("\n"); - } else { - acpi_os_printf(" base %8.8X%8.8X Length %X\n", - ACPI_FORMAT_NATIVE_UINT(obj_desc->region. - address), - obj_desc->region.length); - } - break; - - case ACPI_TYPE_STRING: - - acpi_os_printf("String length %X @ %p ", - obj_desc->string.length, - obj_desc->string.pointer); - - acpi_ut_print_string(obj_desc->string.pointer, ACPI_UINT8_MAX); - acpi_os_printf("\n"); - break; - - case ACPI_TYPE_LOCAL_BANK_FIELD: - - acpi_os_printf("BankField\n"); - break; - - case ACPI_TYPE_LOCAL_REGION_FIELD: - - acpi_os_printf - ("RegionField: Bits=%X AccWidth=%X Lock=%X Update=%X at byte=%X bit=%X of below:\n", - obj_desc->field.bit_length, - obj_desc->field.access_byte_width, - obj_desc->field.field_flags & AML_FIELD_LOCK_RULE_MASK, - obj_desc->field.field_flags & AML_FIELD_UPDATE_RULE_MASK, - obj_desc->field.base_byte_offset, - obj_desc->field.start_field_bit_offset); - - acpi_ex_dump_operand(obj_desc->field.region_obj, depth + 1); - break; - - case ACPI_TYPE_LOCAL_INDEX_FIELD: - - acpi_os_printf("IndexField\n"); - break; - - case ACPI_TYPE_BUFFER_FIELD: - - acpi_os_printf("BufferField: %X bits at byte %X bit %X of\n", - obj_desc->buffer_field.bit_length, - obj_desc->buffer_field.base_byte_offset, - obj_desc->buffer_field.start_field_bit_offset); - - if (!obj_desc->buffer_field.buffer_obj) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "*NULL*\n")); - } else - if (ACPI_GET_OBJECT_TYPE(obj_desc->buffer_field.buffer_obj) - != ACPI_TYPE_BUFFER) { - acpi_os_printf("*not a Buffer*\n"); - } else { - acpi_ex_dump_operand(obj_desc->buffer_field.buffer_obj, - depth + 1); - } - break; - - case ACPI_TYPE_EVENT: - - acpi_os_printf("Event\n"); - break; - - case ACPI_TYPE_METHOD: - - acpi_os_printf("Method(%X) @ %p:%X\n", - obj_desc->method.param_count, - obj_desc->method.aml_start, - obj_desc->method.aml_length); - break; - - case ACPI_TYPE_MUTEX: - - acpi_os_printf("Mutex\n"); - break; - - case ACPI_TYPE_DEVICE: - - acpi_os_printf("Device\n"); - break; - - case ACPI_TYPE_POWER: - - acpi_os_printf("Power\n"); - break; - - case ACPI_TYPE_PROCESSOR: - - acpi_os_printf("Processor\n"); - break; - - case ACPI_TYPE_THERMAL: - - acpi_os_printf("Thermal\n"); - break; - - default: - /* Unknown Type */ - - acpi_os_printf("Unknown Type %X\n", - ACPI_GET_OBJECT_TYPE(obj_desc)); - break; - } - - return; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_dump_operands - * - * PARAMETERS: Operands - A list of Operand objects - * opcode_name - AML opcode name - * num_operands - Operand count for this opcode - * - * DESCRIPTION: Dump the operands associated with the opcode - * - ******************************************************************************/ - -void -acpi_ex_dump_operands(union acpi_operand_object **operands, - const char *opcode_name, u32 num_operands) -{ - ACPI_FUNCTION_NAME(ex_dump_operands); - - if (!opcode_name) { - opcode_name = "UNKNOWN"; - } - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "**** Start operand dump for opcode [%s], %d operands\n", - opcode_name, num_operands)); - - if (num_operands == 0) { - num_operands = 1; - } - - /* Dump the individual operands */ - - while (num_operands) { - acpi_ex_dump_operand(*operands, 0); - operands++; - num_operands--; - } - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "**** End operand dump for [%s]\n", opcode_name)); - return; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_out* functions - * - * PARAMETERS: Title - Descriptive text - * Value - Value to be displayed - * - * DESCRIPTION: Object dump output formatting functions. These functions - * reduce the number of format strings required and keeps them - * all in one place for easy modification. - * - ******************************************************************************/ - -static void acpi_ex_out_string(char *title, char *value) -{ - acpi_os_printf("%20s : %s\n", title, value); -} - -static void acpi_ex_out_pointer(char *title, void *value) -{ - acpi_os_printf("%20s : %p\n", title, value); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_dump_namespace_node - * - * PARAMETERS: Node - Descriptor to dump - * Flags - Force display if TRUE - * - * DESCRIPTION: Dumps the members of the given.Node - * - ******************************************************************************/ - -void acpi_ex_dump_namespace_node(struct acpi_namespace_node *node, u32 flags) -{ - - ACPI_FUNCTION_ENTRY(); - - if (!flags) { - if (!((ACPI_LV_OBJECTS & acpi_dbg_level) - && (_COMPONENT & acpi_dbg_layer))) { - return; - } - } - - acpi_os_printf("%20s : %4.4s\n", "Name", acpi_ut_get_node_name(node)); - acpi_ex_out_string("Type", acpi_ut_get_type_name(node->type)); - acpi_ex_out_pointer("Attached Object", - acpi_ns_get_attached_object(node)); - acpi_ex_out_pointer("Parent", acpi_ns_get_parent_node(node)); - - acpi_ex_dump_object(ACPI_CAST_PTR(union acpi_operand_object, node), - acpi_ex_dump_node); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_dump_reference_obj - * - * PARAMETERS: Object - Descriptor to dump - * - * DESCRIPTION: Dumps a reference object - * - ******************************************************************************/ - -static void acpi_ex_dump_reference_obj(union acpi_operand_object *obj_desc) -{ - struct acpi_buffer ret_buf; - acpi_status status; - - ret_buf.length = ACPI_ALLOCATE_LOCAL_BUFFER; - - if (obj_desc->reference.class == ACPI_REFCLASS_NAME) { - acpi_os_printf(" %p ", obj_desc->reference.node); - - status = - acpi_ns_handle_to_pathname(obj_desc->reference.node, - &ret_buf); - if (ACPI_FAILURE(status)) { - acpi_os_printf(" Could not convert name to pathname\n"); - } else { - acpi_os_printf("%s\n", (char *)ret_buf.pointer); - ACPI_FREE(ret_buf.pointer); - } - } else if (obj_desc->reference.object) { - if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == - ACPI_DESC_TYPE_OPERAND) { - acpi_os_printf(" Target: %p", - obj_desc->reference.object); - if (obj_desc->reference.class == ACPI_REFCLASS_TABLE) { - acpi_os_printf(" Table Index: %X\n", - obj_desc->reference.value); - } else { - acpi_os_printf(" Target: %p [%s]\n", - obj_desc->reference.object, - acpi_ut_get_type_name(((union - acpi_operand_object - *) - obj_desc-> - reference. - object)-> - common. - type)); - } - } else { - acpi_os_printf(" Target: %p\n", - obj_desc->reference.object); - } - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_dump_package_obj - * - * PARAMETERS: obj_desc - Descriptor to dump - * Level - Indentation Level - * Index - Package index for this object - * - * DESCRIPTION: Dumps the elements of the package - * - ******************************************************************************/ - -static void -acpi_ex_dump_package_obj(union acpi_operand_object *obj_desc, - u32 level, u32 index) -{ - u32 i; - - /* Indentation and index output */ - - if (level > 0) { - for (i = 0; i < level; i++) { - acpi_os_printf(" "); - } - - acpi_os_printf("[%.2d] ", index); - } - - acpi_os_printf("%p ", obj_desc); - - /* Null package elements are allowed */ - - if (!obj_desc) { - acpi_os_printf("[Null Object]\n"); - return; - } - - /* Packages may only contain a few object types */ - - switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { - case ACPI_TYPE_INTEGER: - - acpi_os_printf("[Integer] = %8.8X%8.8X\n", - ACPI_FORMAT_UINT64(obj_desc->integer.value)); - break; - - case ACPI_TYPE_STRING: - - acpi_os_printf("[String] Value: "); - for (i = 0; i < obj_desc->string.length; i++) { - acpi_os_printf("%c", obj_desc->string.pointer[i]); - } - acpi_os_printf("\n"); - break; - - case ACPI_TYPE_BUFFER: - - acpi_os_printf("[Buffer] Length %.2X = ", - obj_desc->buffer.length); - if (obj_desc->buffer.length) { - acpi_ut_dump_buffer(ACPI_CAST_PTR - (u8, obj_desc->buffer.pointer), - obj_desc->buffer.length, - DB_DWORD_DISPLAY, _COMPONENT); - } else { - acpi_os_printf("\n"); - } - break; - - case ACPI_TYPE_PACKAGE: - - acpi_os_printf("[Package] Contains %d Elements:\n", - obj_desc->package.count); - - for (i = 0; i < obj_desc->package.count; i++) { - acpi_ex_dump_package_obj(obj_desc->package.elements[i], - level + 1, i); - } - break; - - case ACPI_TYPE_LOCAL_REFERENCE: - - acpi_os_printf("[Object Reference] Type [%s] %2.2X", - acpi_ut_get_reference_name(obj_desc), - obj_desc->reference.class); - acpi_ex_dump_reference_obj(obj_desc); - break; - - default: - - acpi_os_printf("[Unknown Type] %X\n", - ACPI_GET_OBJECT_TYPE(obj_desc)); - break; - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_dump_object_descriptor - * - * PARAMETERS: obj_desc - Descriptor to dump - * Flags - Force display if TRUE - * - * DESCRIPTION: Dumps the members of the object descriptor given. - * - ******************************************************************************/ - -void -acpi_ex_dump_object_descriptor(union acpi_operand_object *obj_desc, u32 flags) -{ - ACPI_FUNCTION_TRACE(ex_dump_object_descriptor); - - if (!obj_desc) { - return_VOID; - } - - if (!flags) { - if (!((ACPI_LV_OBJECTS & acpi_dbg_level) - && (_COMPONENT & acpi_dbg_layer))) { - return_VOID; - } - } - - if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == ACPI_DESC_TYPE_NAMED) { - acpi_ex_dump_namespace_node((struct acpi_namespace_node *) - obj_desc, flags); - - acpi_os_printf("\nAttached Object (%p):\n", - ((struct acpi_namespace_node *)obj_desc)-> - object); - - acpi_ex_dump_object_descriptor(((struct acpi_namespace_node *) - obj_desc)->object, flags); - return_VOID; - } - - if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != ACPI_DESC_TYPE_OPERAND) { - acpi_os_printf - ("ExDumpObjectDescriptor: %p is not an ACPI operand object: [%s]\n", - obj_desc, acpi_ut_get_descriptor_name(obj_desc)); - return_VOID; - } - - if (obj_desc->common.type > ACPI_TYPE_NS_NODE_MAX) { - return_VOID; - } - - /* Common Fields */ - - acpi_ex_dump_object(obj_desc, acpi_ex_dump_common); - - /* Object-specific fields */ - - acpi_ex_dump_object(obj_desc, acpi_ex_dump_info[obj_desc->common.type]); - return_VOID; -} - -#endif diff --git a/drivers/acpi/executer/exfield.c b/drivers/acpi/executer/exfield.c deleted file mode 100644 index 7b6df031039d..000000000000 --- a/drivers/acpi/executer/exfield.c +++ /dev/null @@ -1,340 +0,0 @@ -/****************************************************************************** - * - * Module Name: exfield - ACPI AML (p-code) execution - field manipulation - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include - -#define _COMPONENT ACPI_EXECUTER -ACPI_MODULE_NAME("exfield") - -/******************************************************************************* - * - * FUNCTION: acpi_ex_read_data_from_field - * - * PARAMETERS: walk_state - Current execution state - * obj_desc - The named field - * ret_buffer_desc - Where the return data object is stored - * - * RETURN: Status - * - * DESCRIPTION: Read from a named field. Returns either an Integer or a - * Buffer, depending on the size of the field. - * - ******************************************************************************/ -acpi_status -acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state, - union acpi_operand_object *obj_desc, - union acpi_operand_object **ret_buffer_desc) -{ - acpi_status status; - union acpi_operand_object *buffer_desc; - acpi_size length; - void *buffer; - - ACPI_FUNCTION_TRACE_PTR(ex_read_data_from_field, obj_desc); - - /* Parameter validation */ - - if (!obj_desc) { - return_ACPI_STATUS(AE_AML_NO_OPERAND); - } - if (!ret_buffer_desc) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_BUFFER_FIELD) { - /* - * If the buffer_field arguments have not been previously evaluated, - * evaluate them now and save the results. - */ - if (!(obj_desc->common.flags & AOPOBJ_DATA_VALID)) { - status = acpi_ds_get_buffer_field_arguments(obj_desc); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - } else - if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_REGION_FIELD) - && (obj_desc->field.region_obj->region.space_id == - ACPI_ADR_SPACE_SMBUS)) { - /* - * This is an SMBus read. We must create a buffer to hold the data - * and directly access the region handler. - */ - buffer_desc = - acpi_ut_create_buffer_object(ACPI_SMBUS_BUFFER_SIZE); - if (!buffer_desc) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Lock entire transaction if requested */ - - acpi_ex_acquire_global_lock(obj_desc->common_field.field_flags); - - /* - * Perform the read. - * Note: Smbus protocol value is passed in upper 16-bits of Function - */ - status = acpi_ex_access_region(obj_desc, 0, - ACPI_CAST_PTR(acpi_integer, - buffer_desc-> - buffer.pointer), - ACPI_READ | (obj_desc->field. - attribute << 16)); - acpi_ex_release_global_lock(obj_desc->common_field.field_flags); - goto exit; - } - - /* - * Allocate a buffer for the contents of the field. - * - * If the field is larger than the size of an acpi_integer, create - * a BUFFER to hold it. Otherwise, use an INTEGER. This allows - * the use of arithmetic operators on the returned value if the - * field size is equal or smaller than an Integer. - * - * Note: Field.length is in bits. - */ - length = - (acpi_size) ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->field.bit_length); - if (length > acpi_gbl_integer_byte_width) { - - /* Field is too large for an Integer, create a Buffer instead */ - - buffer_desc = acpi_ut_create_buffer_object(length); - if (!buffer_desc) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - buffer = buffer_desc->buffer.pointer; - } else { - /* Field will fit within an Integer (normal case) */ - - buffer_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); - if (!buffer_desc) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - length = acpi_gbl_integer_byte_width; - buffer_desc->integer.value = 0; - buffer = &buffer_desc->integer.value; - } - - ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "FieldRead [TO]: Obj %p, Type %X, Buf %p, ByteLen %X\n", - obj_desc, ACPI_GET_OBJECT_TYPE(obj_desc), buffer, - (u32) length)); - ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "FieldRead [FROM]: BitLen %X, BitOff %X, ByteOff %X\n", - obj_desc->common_field.bit_length, - obj_desc->common_field.start_field_bit_offset, - obj_desc->common_field.base_byte_offset)); - - /* Lock entire transaction if requested */ - - acpi_ex_acquire_global_lock(obj_desc->common_field.field_flags); - - /* Read from the field */ - - status = acpi_ex_extract_from_field(obj_desc, buffer, (u32) length); - acpi_ex_release_global_lock(obj_desc->common_field.field_flags); - - exit: - if (ACPI_FAILURE(status)) { - acpi_ut_remove_reference(buffer_desc); - } else { - *ret_buffer_desc = buffer_desc; - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_write_data_to_field - * - * PARAMETERS: source_desc - Contains data to write - * obj_desc - The named field - * result_desc - Where the return value is returned, if any - * - * RETURN: Status - * - * DESCRIPTION: Write to a named field - * - ******************************************************************************/ - -acpi_status -acpi_ex_write_data_to_field(union acpi_operand_object *source_desc, - union acpi_operand_object *obj_desc, - union acpi_operand_object **result_desc) -{ - acpi_status status; - u32 length; - void *buffer; - union acpi_operand_object *buffer_desc; - - ACPI_FUNCTION_TRACE_PTR(ex_write_data_to_field, obj_desc); - - /* Parameter validation */ - - if (!source_desc || !obj_desc) { - return_ACPI_STATUS(AE_AML_NO_OPERAND); - } - - if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_BUFFER_FIELD) { - /* - * If the buffer_field arguments have not been previously evaluated, - * evaluate them now and save the results. - */ - if (!(obj_desc->common.flags & AOPOBJ_DATA_VALID)) { - status = acpi_ds_get_buffer_field_arguments(obj_desc); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - } else - if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_REGION_FIELD) - && (obj_desc->field.region_obj->region.space_id == - ACPI_ADR_SPACE_SMBUS)) { - /* - * This is an SMBus write. We will bypass the entire field mechanism - * and handoff the buffer directly to the handler. - * - * Source must be a buffer of sufficient size (ACPI_SMBUS_BUFFER_SIZE). - */ - if (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_BUFFER) { - ACPI_ERROR((AE_INFO, - "SMBus write requires Buffer, found type %s", - acpi_ut_get_object_type_name(source_desc))); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - - if (source_desc->buffer.length < ACPI_SMBUS_BUFFER_SIZE) { - ACPI_ERROR((AE_INFO, - "SMBus write requires Buffer of length %X, found length %X", - ACPI_SMBUS_BUFFER_SIZE, - source_desc->buffer.length)); - - return_ACPI_STATUS(AE_AML_BUFFER_LIMIT); - } - - buffer_desc = - acpi_ut_create_buffer_object(ACPI_SMBUS_BUFFER_SIZE); - if (!buffer_desc) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - buffer = buffer_desc->buffer.pointer; - ACPI_MEMCPY(buffer, source_desc->buffer.pointer, - ACPI_SMBUS_BUFFER_SIZE); - - /* Lock entire transaction if requested */ - - acpi_ex_acquire_global_lock(obj_desc->common_field.field_flags); - - /* - * Perform the write (returns status and perhaps data in the - * same buffer) - * Note: SMBus protocol type is passed in upper 16-bits of Function. - */ - status = acpi_ex_access_region(obj_desc, 0, - (acpi_integer *) buffer, - ACPI_WRITE | (obj_desc->field. - attribute << 16)); - acpi_ex_release_global_lock(obj_desc->common_field.field_flags); - - *result_desc = buffer_desc; - return_ACPI_STATUS(status); - } - - /* Get a pointer to the data to be written */ - - switch (ACPI_GET_OBJECT_TYPE(source_desc)) { - case ACPI_TYPE_INTEGER: - buffer = &source_desc->integer.value; - length = sizeof(source_desc->integer.value); - break; - - case ACPI_TYPE_BUFFER: - buffer = source_desc->buffer.pointer; - length = source_desc->buffer.length; - break; - - case ACPI_TYPE_STRING: - buffer = source_desc->string.pointer; - length = source_desc->string.length; - break; - - default: - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - - ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "FieldWrite [FROM]: Obj %p (%s:%X), Buf %p, ByteLen %X\n", - source_desc, - acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE - (source_desc)), - ACPI_GET_OBJECT_TYPE(source_desc), buffer, length)); - - ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "FieldWrite [TO]: Obj %p (%s:%X), BitLen %X, BitOff %X, ByteOff %X\n", - obj_desc, - acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE(obj_desc)), - ACPI_GET_OBJECT_TYPE(obj_desc), - obj_desc->common_field.bit_length, - obj_desc->common_field.start_field_bit_offset, - obj_desc->common_field.base_byte_offset)); - - /* Lock entire transaction if requested */ - - acpi_ex_acquire_global_lock(obj_desc->common_field.field_flags); - - /* Write to the field */ - - status = acpi_ex_insert_into_field(obj_desc, buffer, length); - acpi_ex_release_global_lock(obj_desc->common_field.field_flags); - - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/executer/exfldio.c b/drivers/acpi/executer/exfldio.c deleted file mode 100644 index 33cd17a1064f..000000000000 --- a/drivers/acpi/executer/exfldio.c +++ /dev/null @@ -1,961 +0,0 @@ -/****************************************************************************** - * - * Module Name: exfldio - Aml Field I/O - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_EXECUTER -ACPI_MODULE_NAME("exfldio") - -/* Local prototypes */ -static acpi_status -acpi_ex_field_datum_io(union acpi_operand_object *obj_desc, - u32 field_datum_byte_offset, - acpi_integer * value, u32 read_write); - -static u8 -acpi_ex_register_overflow(union acpi_operand_object *obj_desc, - acpi_integer value); - -static acpi_status -acpi_ex_setup_region(union acpi_operand_object *obj_desc, - u32 field_datum_byte_offset); - -/******************************************************************************* - * - * FUNCTION: acpi_ex_setup_region - * - * PARAMETERS: obj_desc - Field to be read or written - * field_datum_byte_offset - Byte offset of this datum within the - * parent field - * - * RETURN: Status - * - * DESCRIPTION: Common processing for acpi_ex_extract_from_field and - * acpi_ex_insert_into_field. Initialize the Region if necessary and - * validate the request. - * - ******************************************************************************/ - -static acpi_status -acpi_ex_setup_region(union acpi_operand_object *obj_desc, - u32 field_datum_byte_offset) -{ - acpi_status status = AE_OK; - union acpi_operand_object *rgn_desc; - - ACPI_FUNCTION_TRACE_U32(ex_setup_region, field_datum_byte_offset); - - rgn_desc = obj_desc->common_field.region_obj; - - /* We must have a valid region */ - - if (ACPI_GET_OBJECT_TYPE(rgn_desc) != ACPI_TYPE_REGION) { - ACPI_ERROR((AE_INFO, "Needed Region, found type %X (%s)", - ACPI_GET_OBJECT_TYPE(rgn_desc), - acpi_ut_get_object_type_name(rgn_desc))); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - - /* - * If the Region Address and Length have not been previously evaluated, - * evaluate them now and save the results. - */ - if (!(rgn_desc->common.flags & AOPOBJ_DATA_VALID)) { - status = acpi_ds_get_region_arguments(rgn_desc); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - - /* Exit if Address/Length have been disallowed by the host OS */ - - if (rgn_desc->common.flags & AOPOBJ_INVALID) { - return_ACPI_STATUS(AE_AML_ILLEGAL_ADDRESS); - } - - /* - * Exit now for SMBus address space, it has a non-linear address space - * and the request cannot be directly validated - */ - if (rgn_desc->region.space_id == ACPI_ADR_SPACE_SMBUS) { - - /* SMBus has a non-linear address space */ - - return_ACPI_STATUS(AE_OK); - } -#ifdef ACPI_UNDER_DEVELOPMENT - /* - * If the Field access is any_acc, we can now compute the optimal - * access (because we know know the length of the parent region) - */ - if (!(obj_desc->common.flags & AOPOBJ_DATA_VALID)) { - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } -#endif - - /* - * Validate the request. The entire request from the byte offset for a - * length of one field datum (access width) must fit within the region. - * (Region length is specified in bytes) - */ - if (rgn_desc->region.length < - (obj_desc->common_field.base_byte_offset + - field_datum_byte_offset + - obj_desc->common_field.access_byte_width)) { - if (acpi_gbl_enable_interpreter_slack) { - /* - * Slack mode only: We will go ahead and allow access to this - * field if it is within the region length rounded up to the next - * access width boundary. acpi_size cast for 64-bit compile. - */ - if (ACPI_ROUND_UP(rgn_desc->region.length, - obj_desc->common_field. - access_byte_width) >= - ((acpi_size) obj_desc->common_field. - base_byte_offset + - obj_desc->common_field.access_byte_width + - field_datum_byte_offset)) { - return_ACPI_STATUS(AE_OK); - } - } - - if (rgn_desc->region.length < - obj_desc->common_field.access_byte_width) { - /* - * This is the case where the access_type (acc_word, etc.) is wider - * than the region itself. For example, a region of length one - * byte, and a field with Dword access specified. - */ - ACPI_ERROR((AE_INFO, - "Field [%4.4s] access width (%d bytes) too large for region [%4.4s] (length %X)", - acpi_ut_get_node_name(obj_desc-> - common_field.node), - obj_desc->common_field.access_byte_width, - acpi_ut_get_node_name(rgn_desc->region. - node), - rgn_desc->region.length)); - } - - /* - * Offset rounded up to next multiple of field width - * exceeds region length, indicate an error - */ - ACPI_ERROR((AE_INFO, - "Field [%4.4s] Base+Offset+Width %X+%X+%X is beyond end of region [%4.4s] (length %X)", - acpi_ut_get_node_name(obj_desc->common_field.node), - obj_desc->common_field.base_byte_offset, - field_datum_byte_offset, - obj_desc->common_field.access_byte_width, - acpi_ut_get_node_name(rgn_desc->region.node), - rgn_desc->region.length)); - - return_ACPI_STATUS(AE_AML_REGION_LIMIT); - } - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_access_region - * - * PARAMETERS: obj_desc - Field to be read - * field_datum_byte_offset - Byte offset of this datum within the - * parent field - * Value - Where to store value (must at least - * the size of acpi_integer) - * Function - Read or Write flag plus other region- - * dependent flags - * - * RETURN: Status - * - * DESCRIPTION: Read or Write a single field datum to an Operation Region. - * - ******************************************************************************/ - -acpi_status -acpi_ex_access_region(union acpi_operand_object *obj_desc, - u32 field_datum_byte_offset, - acpi_integer * value, u32 function) -{ - acpi_status status; - union acpi_operand_object *rgn_desc; - acpi_physical_address address; - - ACPI_FUNCTION_TRACE(ex_access_region); - - /* - * Ensure that the region operands are fully evaluated and verify - * the validity of the request - */ - status = acpi_ex_setup_region(obj_desc, field_datum_byte_offset); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * The physical address of this field datum is: - * - * 1) The base of the region, plus - * 2) The base offset of the field, plus - * 3) The current offset into the field - */ - rgn_desc = obj_desc->common_field.region_obj; - address = rgn_desc->region.address + - obj_desc->common_field.base_byte_offset + field_datum_byte_offset; - - if ((function & ACPI_IO_MASK) == ACPI_READ) { - ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, "[READ]")); - } else { - ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, "[WRITE]")); - } - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_BFIELD, - " Region [%s:%X], Width %X, ByteBase %X, Offset %X at %p\n", - acpi_ut_get_region_name(rgn_desc->region. - space_id), - rgn_desc->region.space_id, - obj_desc->common_field.access_byte_width, - obj_desc->common_field.base_byte_offset, - field_datum_byte_offset, ACPI_CAST_PTR(void, - address))); - - /* Invoke the appropriate address_space/op_region handler */ - - status = acpi_ev_address_space_dispatch(rgn_desc, function, - address, - ACPI_MUL_8(obj_desc-> - common_field. - access_byte_width), - value); - - if (ACPI_FAILURE(status)) { - if (status == AE_NOT_IMPLEMENTED) { - ACPI_ERROR((AE_INFO, - "Region %s(%X) not implemented", - acpi_ut_get_region_name(rgn_desc->region. - space_id), - rgn_desc->region.space_id)); - } else if (status == AE_NOT_EXIST) { - ACPI_ERROR((AE_INFO, - "Region %s(%X) has no handler", - acpi_ut_get_region_name(rgn_desc->region. - space_id), - rgn_desc->region.space_id)); - } - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_register_overflow - * - * PARAMETERS: obj_desc - Register(Field) to be written - * Value - Value to be stored - * - * RETURN: TRUE if value overflows the field, FALSE otherwise - * - * DESCRIPTION: Check if a value is out of range of the field being written. - * Used to check if the values written to Index and Bank registers - * are out of range. Normally, the value is simply truncated - * to fit the field, but this case is most likely a serious - * coding error in the ASL. - * - ******************************************************************************/ - -static u8 -acpi_ex_register_overflow(union acpi_operand_object *obj_desc, - acpi_integer value) -{ - - if (obj_desc->common_field.bit_length >= ACPI_INTEGER_BIT_SIZE) { - /* - * The field is large enough to hold the maximum integer, so we can - * never overflow it. - */ - return (FALSE); - } - - if (value >= ((acpi_integer) 1 << obj_desc->common_field.bit_length)) { - /* - * The Value is larger than the maximum value that can fit into - * the register. - */ - return (TRUE); - } - - /* The Value will fit into the field with no truncation */ - - return (FALSE); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_field_datum_io - * - * PARAMETERS: obj_desc - Field to be read - * field_datum_byte_offset - Byte offset of this datum within the - * parent field - * Value - Where to store value (must be 64 bits) - * read_write - Read or Write flag - * - * RETURN: Status - * - * DESCRIPTION: Read or Write a single datum of a field. The field_type is - * demultiplexed here to handle the different types of fields - * (buffer_field, region_field, index_field, bank_field) - * - ******************************************************************************/ - -static acpi_status -acpi_ex_field_datum_io(union acpi_operand_object *obj_desc, - u32 field_datum_byte_offset, - acpi_integer * value, u32 read_write) -{ - acpi_status status; - acpi_integer local_value; - - ACPI_FUNCTION_TRACE_U32(ex_field_datum_io, field_datum_byte_offset); - - if (read_write == ACPI_READ) { - if (!value) { - local_value = 0; - - /* To support reads without saving return value */ - value = &local_value; - } - - /* Clear the entire return buffer first, [Very Important!] */ - - *value = 0; - } - - /* - * The four types of fields are: - * - * buffer_field - Read/write from/to a Buffer - * region_field - Read/write from/to a Operation Region. - * bank_field - Write to a Bank Register, then read/write from/to an - * operation_region - * index_field - Write to an Index Register, then read/write from/to a - * Data Register - */ - switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { - case ACPI_TYPE_BUFFER_FIELD: - /* - * If the buffer_field arguments have not been previously evaluated, - * evaluate them now and save the results. - */ - if (!(obj_desc->common.flags & AOPOBJ_DATA_VALID)) { - status = acpi_ds_get_buffer_field_arguments(obj_desc); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - - if (read_write == ACPI_READ) { - /* - * Copy the data from the source buffer. - * Length is the field width in bytes. - */ - ACPI_MEMCPY(value, - (obj_desc->buffer_field.buffer_obj)->buffer. - pointer + - obj_desc->buffer_field.base_byte_offset + - field_datum_byte_offset, - obj_desc->common_field.access_byte_width); - } else { - /* - * Copy the data to the target buffer. - * Length is the field width in bytes. - */ - ACPI_MEMCPY((obj_desc->buffer_field.buffer_obj)->buffer. - pointer + - obj_desc->buffer_field.base_byte_offset + - field_datum_byte_offset, value, - obj_desc->common_field.access_byte_width); - } - - status = AE_OK; - break; - - case ACPI_TYPE_LOCAL_BANK_FIELD: - - /* - * Ensure that the bank_value is not beyond the capacity of - * the register - */ - if (acpi_ex_register_overflow(obj_desc->bank_field.bank_obj, - (acpi_integer) obj_desc-> - bank_field.value)) { - return_ACPI_STATUS(AE_AML_REGISTER_LIMIT); - } - - /* - * For bank_fields, we must write the bank_value to the bank_register - * (itself a region_field) before we can access the data. - */ - status = - acpi_ex_insert_into_field(obj_desc->bank_field.bank_obj, - &obj_desc->bank_field.value, - sizeof(obj_desc->bank_field. - value)); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * Now that the Bank has been selected, fall through to the - * region_field case and write the datum to the Operation Region - */ - - /*lint -fallthrough */ - - case ACPI_TYPE_LOCAL_REGION_FIELD: - /* - * For simple region_fields, we just directly access the owning - * Operation Region. - */ - status = - acpi_ex_access_region(obj_desc, field_datum_byte_offset, - value, read_write); - break; - - case ACPI_TYPE_LOCAL_INDEX_FIELD: - - /* - * Ensure that the index_value is not beyond the capacity of - * the register - */ - if (acpi_ex_register_overflow(obj_desc->index_field.index_obj, - (acpi_integer) obj_desc-> - index_field.value)) { - return_ACPI_STATUS(AE_AML_REGISTER_LIMIT); - } - - /* Write the index value to the index_register (itself a region_field) */ - - field_datum_byte_offset += obj_desc->index_field.value; - - ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "Write to Index Register: Value %8.8X\n", - field_datum_byte_offset)); - - status = - acpi_ex_insert_into_field(obj_desc->index_field.index_obj, - &field_datum_byte_offset, - sizeof(field_datum_byte_offset)); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - if (read_write == ACPI_READ) { - - /* Read the datum from the data_register */ - - ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "Read from Data Register\n")); - - status = - acpi_ex_extract_from_field(obj_desc->index_field. - data_obj, value, - sizeof(acpi_integer)); - } else { - /* Write the datum to the data_register */ - - ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "Write to Data Register: Value %8.8X%8.8X\n", - ACPI_FORMAT_UINT64(*value))); - - status = - acpi_ex_insert_into_field(obj_desc->index_field. - data_obj, value, - sizeof(acpi_integer)); - } - break; - - default: - - ACPI_ERROR((AE_INFO, "Wrong object type in field I/O %X", - ACPI_GET_OBJECT_TYPE(obj_desc))); - status = AE_AML_INTERNAL; - break; - } - - if (ACPI_SUCCESS(status)) { - if (read_write == ACPI_READ) { - ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "Value Read %8.8X%8.8X, Width %d\n", - ACPI_FORMAT_UINT64(*value), - obj_desc->common_field. - access_byte_width)); - } else { - ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "Value Written %8.8X%8.8X, Width %d\n", - ACPI_FORMAT_UINT64(*value), - obj_desc->common_field. - access_byte_width)); - } - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_write_with_update_rule - * - * PARAMETERS: obj_desc - Field to be written - * Mask - bitmask within field datum - * field_value - Value to write - * field_datum_byte_offset - Offset of datum within field - * - * RETURN: Status - * - * DESCRIPTION: Apply the field update rule to a field write - * - ******************************************************************************/ - -acpi_status -acpi_ex_write_with_update_rule(union acpi_operand_object *obj_desc, - acpi_integer mask, - acpi_integer field_value, - u32 field_datum_byte_offset) -{ - acpi_status status = AE_OK; - acpi_integer merged_value; - acpi_integer current_value; - - ACPI_FUNCTION_TRACE_U32(ex_write_with_update_rule, mask); - - /* Start with the new bits */ - - merged_value = field_value; - - /* If the mask is all ones, we don't need to worry about the update rule */ - - if (mask != ACPI_INTEGER_MAX) { - - /* Decode the update rule */ - - switch (obj_desc->common_field. - field_flags & AML_FIELD_UPDATE_RULE_MASK) { - case AML_FIELD_UPDATE_PRESERVE: - /* - * Check if update rule needs to be applied (not if mask is all - * ones) The left shift drops the bits we want to ignore. - */ - if ((~mask << (ACPI_MUL_8(sizeof(mask)) - - ACPI_MUL_8(obj_desc->common_field. - access_byte_width))) != 0) { - /* - * Read the current contents of the byte/word/dword containing - * the field, and merge with the new field value. - */ - status = - acpi_ex_field_datum_io(obj_desc, - field_datum_byte_offset, - ¤t_value, - ACPI_READ); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - merged_value |= (current_value & ~mask); - } - break; - - case AML_FIELD_UPDATE_WRITE_AS_ONES: - - /* Set positions outside the field to all ones */ - - merged_value |= ~mask; - break; - - case AML_FIELD_UPDATE_WRITE_AS_ZEROS: - - /* Set positions outside the field to all zeros */ - - merged_value &= mask; - break; - - default: - - ACPI_ERROR((AE_INFO, - "Unknown UpdateRule value: %X", - (obj_desc->common_field. - field_flags & - AML_FIELD_UPDATE_RULE_MASK))); - return_ACPI_STATUS(AE_AML_OPERAND_VALUE); - } - } - - ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "Mask %8.8X%8.8X, DatumOffset %X, Width %X, Value %8.8X%8.8X, MergedValue %8.8X%8.8X\n", - ACPI_FORMAT_UINT64(mask), - field_datum_byte_offset, - obj_desc->common_field.access_byte_width, - ACPI_FORMAT_UINT64(field_value), - ACPI_FORMAT_UINT64(merged_value))); - - /* Write the merged value */ - - status = acpi_ex_field_datum_io(obj_desc, field_datum_byte_offset, - &merged_value, ACPI_WRITE); - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_extract_from_field - * - * PARAMETERS: obj_desc - Field to be read - * Buffer - Where to store the field data - * buffer_length - Length of Buffer - * - * RETURN: Status - * - * DESCRIPTION: Retrieve the current value of the given field - * - ******************************************************************************/ - -acpi_status -acpi_ex_extract_from_field(union acpi_operand_object *obj_desc, - void *buffer, u32 buffer_length) -{ - acpi_status status; - acpi_integer raw_datum; - acpi_integer merged_datum; - u32 field_offset = 0; - u32 buffer_offset = 0; - u32 buffer_tail_bits; - u32 datum_count; - u32 field_datum_count; - u32 i; - - ACPI_FUNCTION_TRACE(ex_extract_from_field); - - /* Validate target buffer and clear it */ - - if (buffer_length < - ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->common_field.bit_length)) { - ACPI_ERROR((AE_INFO, - "Field size %X (bits) is too large for buffer (%X)", - obj_desc->common_field.bit_length, buffer_length)); - - return_ACPI_STATUS(AE_BUFFER_OVERFLOW); - } - ACPI_MEMSET(buffer, 0, buffer_length); - - /* Compute the number of datums (access width data items) */ - - datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length, - obj_desc->common_field.access_bit_width); - field_datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length + - obj_desc->common_field. - start_field_bit_offset, - obj_desc->common_field. - access_bit_width); - - /* Priming read from the field */ - - status = - acpi_ex_field_datum_io(obj_desc, field_offset, &raw_datum, - ACPI_READ); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - merged_datum = - raw_datum >> obj_desc->common_field.start_field_bit_offset; - - /* Read the rest of the field */ - - for (i = 1; i < field_datum_count; i++) { - - /* Get next input datum from the field */ - - field_offset += obj_desc->common_field.access_byte_width; - status = acpi_ex_field_datum_io(obj_desc, field_offset, - &raw_datum, ACPI_READ); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * Merge with previous datum if necessary. - * - * Note: Before the shift, check if the shift value will be larger than - * the integer size. If so, there is no need to perform the operation. - * This avoids the differences in behavior between different compilers - * concerning shift values larger than the target data width. - */ - if ((obj_desc->common_field.access_bit_width - - obj_desc->common_field.start_field_bit_offset) < - ACPI_INTEGER_BIT_SIZE) { - merged_datum |= - raw_datum << (obj_desc->common_field. - access_bit_width - - obj_desc->common_field. - start_field_bit_offset); - } - - if (i == datum_count) { - break; - } - - /* Write merged datum to target buffer */ - - ACPI_MEMCPY(((char *)buffer) + buffer_offset, &merged_datum, - ACPI_MIN(obj_desc->common_field.access_byte_width, - buffer_length - buffer_offset)); - - buffer_offset += obj_desc->common_field.access_byte_width; - merged_datum = - raw_datum >> obj_desc->common_field.start_field_bit_offset; - } - - /* Mask off any extra bits in the last datum */ - - buffer_tail_bits = obj_desc->common_field.bit_length % - obj_desc->common_field.access_bit_width; - if (buffer_tail_bits) { - merged_datum &= ACPI_MASK_BITS_ABOVE(buffer_tail_bits); - } - - /* Write the last datum to the buffer */ - - ACPI_MEMCPY(((char *)buffer) + buffer_offset, &merged_datum, - ACPI_MIN(obj_desc->common_field.access_byte_width, - buffer_length - buffer_offset)); - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_insert_into_field - * - * PARAMETERS: obj_desc - Field to be written - * Buffer - Data to be written - * buffer_length - Length of Buffer - * - * RETURN: Status - * - * DESCRIPTION: Store the Buffer contents into the given field - * - ******************************************************************************/ - -acpi_status -acpi_ex_insert_into_field(union acpi_operand_object *obj_desc, - void *buffer, u32 buffer_length) -{ - acpi_status status; - acpi_integer mask; - acpi_integer width_mask; - acpi_integer merged_datum; - acpi_integer raw_datum = 0; - u32 field_offset = 0; - u32 buffer_offset = 0; - u32 buffer_tail_bits; - u32 datum_count; - u32 field_datum_count; - u32 i; - u32 required_length; - void *new_buffer; - - ACPI_FUNCTION_TRACE(ex_insert_into_field); - - /* Validate input buffer */ - - new_buffer = NULL; - required_length = - ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->common_field.bit_length); - /* - * We must have a buffer that is at least as long as the field - * we are writing to. This is because individual fields are - * indivisible and partial writes are not supported -- as per - * the ACPI specification. - */ - if (buffer_length < required_length) { - - /* We need to create a new buffer */ - - new_buffer = ACPI_ALLOCATE_ZEROED(required_length); - if (!new_buffer) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* - * Copy the original data to the new buffer, starting - * at Byte zero. All unused (upper) bytes of the - * buffer will be 0. - */ - ACPI_MEMCPY((char *)new_buffer, (char *)buffer, buffer_length); - buffer = new_buffer; - buffer_length = required_length; - } - - /* - * Create the bitmasks used for bit insertion. - * Note: This if/else is used to bypass compiler differences with the - * shift operator - */ - if (obj_desc->common_field.access_bit_width == ACPI_INTEGER_BIT_SIZE) { - width_mask = ACPI_INTEGER_MAX; - } else { - width_mask = - ACPI_MASK_BITS_ABOVE(obj_desc->common_field. - access_bit_width); - } - - mask = width_mask & - ACPI_MASK_BITS_BELOW(obj_desc->common_field.start_field_bit_offset); - - /* Compute the number of datums (access width data items) */ - - datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length, - obj_desc->common_field.access_bit_width); - - field_datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length + - obj_desc->common_field. - start_field_bit_offset, - obj_desc->common_field. - access_bit_width); - - /* Get initial Datum from the input buffer */ - - ACPI_MEMCPY(&raw_datum, buffer, - ACPI_MIN(obj_desc->common_field.access_byte_width, - buffer_length - buffer_offset)); - - merged_datum = - raw_datum << obj_desc->common_field.start_field_bit_offset; - - /* Write the entire field */ - - for (i = 1; i < field_datum_count; i++) { - - /* Write merged datum to the target field */ - - merged_datum &= mask; - status = acpi_ex_write_with_update_rule(obj_desc, mask, - merged_datum, - field_offset); - if (ACPI_FAILURE(status)) { - goto exit; - } - - field_offset += obj_desc->common_field.access_byte_width; - - /* - * Start new output datum by merging with previous input datum - * if necessary. - * - * Note: Before the shift, check if the shift value will be larger than - * the integer size. If so, there is no need to perform the operation. - * This avoids the differences in behavior between different compilers - * concerning shift values larger than the target data width. - */ - if ((obj_desc->common_field.access_bit_width - - obj_desc->common_field.start_field_bit_offset) < - ACPI_INTEGER_BIT_SIZE) { - merged_datum = - raw_datum >> (obj_desc->common_field. - access_bit_width - - obj_desc->common_field. - start_field_bit_offset); - } else { - merged_datum = 0; - } - - mask = width_mask; - - if (i == datum_count) { - break; - } - - /* Get the next input datum from the buffer */ - - buffer_offset += obj_desc->common_field.access_byte_width; - ACPI_MEMCPY(&raw_datum, ((char *)buffer) + buffer_offset, - ACPI_MIN(obj_desc->common_field.access_byte_width, - buffer_length - buffer_offset)); - merged_datum |= - raw_datum << obj_desc->common_field.start_field_bit_offset; - } - - /* Mask off any extra bits in the last datum */ - - buffer_tail_bits = (obj_desc->common_field.bit_length + - obj_desc->common_field.start_field_bit_offset) % - obj_desc->common_field.access_bit_width; - if (buffer_tail_bits) { - mask &= ACPI_MASK_BITS_ABOVE(buffer_tail_bits); - } - - /* Write the last datum to the field */ - - merged_datum &= mask; - status = acpi_ex_write_with_update_rule(obj_desc, - mask, merged_datum, - field_offset); - - exit: - /* Free temporary buffer if we used one */ - - if (new_buffer) { - ACPI_FREE(new_buffer); - } - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/executer/exmisc.c b/drivers/acpi/executer/exmisc.c deleted file mode 100644 index e445463de8a9..000000000000 --- a/drivers/acpi/executer/exmisc.c +++ /dev/null @@ -1,726 +0,0 @@ - -/****************************************************************************** - * - * Module Name: exmisc - ACPI AML (p-code) execution - specific opcodes - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_EXECUTER -ACPI_MODULE_NAME("exmisc") - -/******************************************************************************* - * - * FUNCTION: acpi_ex_get_object_reference - * - * PARAMETERS: obj_desc - Create a reference to this object - * return_desc - Where to store the reference - * walk_state - Current state - * - * RETURN: Status - * - * DESCRIPTION: Obtain and return a "reference" to the target object - * Common code for the ref_of_op and the cond_ref_of_op. - * - ******************************************************************************/ -acpi_status -acpi_ex_get_object_reference(union acpi_operand_object *obj_desc, - union acpi_operand_object **return_desc, - struct acpi_walk_state *walk_state) -{ - union acpi_operand_object *reference_obj; - union acpi_operand_object *referenced_obj; - - ACPI_FUNCTION_TRACE_PTR(ex_get_object_reference, obj_desc); - - *return_desc = NULL; - - switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) { - case ACPI_DESC_TYPE_OPERAND: - - if (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_LOCAL_REFERENCE) { - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - - /* - * Must be a reference to a Local or Arg - */ - switch (obj_desc->reference.class) { - case ACPI_REFCLASS_LOCAL: - case ACPI_REFCLASS_ARG: - case ACPI_REFCLASS_DEBUG: - - /* The referenced object is the pseudo-node for the local/arg */ - - referenced_obj = obj_desc->reference.object; - break; - - default: - - ACPI_ERROR((AE_INFO, "Unknown Reference Class %2.2X", - obj_desc->reference.class)); - return_ACPI_STATUS(AE_AML_INTERNAL); - } - break; - - case ACPI_DESC_TYPE_NAMED: - - /* - * A named reference that has already been resolved to a Node - */ - referenced_obj = obj_desc; - break; - - default: - - ACPI_ERROR((AE_INFO, "Invalid descriptor type %X", - ACPI_GET_DESCRIPTOR_TYPE(obj_desc))); - return_ACPI_STATUS(AE_TYPE); - } - - /* Create a new reference object */ - - reference_obj = - acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_REFERENCE); - if (!reference_obj) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - reference_obj->reference.class = ACPI_REFCLASS_REFOF; - reference_obj->reference.object = referenced_obj; - *return_desc = reference_obj; - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Object %p Type [%s], returning Reference %p\n", - obj_desc, acpi_ut_get_object_type_name(obj_desc), - *return_desc)); - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_concat_template - * - * PARAMETERS: Operand0 - First source object - * Operand1 - Second source object - * actual_return_desc - Where to place the return object - * walk_state - Current walk state - * - * RETURN: Status - * - * DESCRIPTION: Concatenate two resource templates - * - ******************************************************************************/ - -acpi_status -acpi_ex_concat_template(union acpi_operand_object *operand0, - union acpi_operand_object *operand1, - union acpi_operand_object **actual_return_desc, - struct acpi_walk_state *walk_state) -{ - acpi_status status; - union acpi_operand_object *return_desc; - u8 *new_buf; - u8 *end_tag; - acpi_size length0; - acpi_size length1; - acpi_size new_length; - - ACPI_FUNCTION_TRACE(ex_concat_template); - - /* - * Find the end_tag descriptor in each resource template. - * Note1: returned pointers point TO the end_tag, not past it. - * Note2: zero-length buffers are allowed; treated like one end_tag - */ - - /* Get the length of the first resource template */ - - status = acpi_ut_get_resource_end_tag(operand0, &end_tag); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - length0 = ACPI_PTR_DIFF(end_tag, operand0->buffer.pointer); - - /* Get the length of the second resource template */ - - status = acpi_ut_get_resource_end_tag(operand1, &end_tag); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - length1 = ACPI_PTR_DIFF(end_tag, operand1->buffer.pointer); - - /* Combine both lengths, minimum size will be 2 for end_tag */ - - new_length = length0 + length1 + sizeof(struct aml_resource_end_tag); - - /* Create a new buffer object for the result (with one end_tag) */ - - return_desc = acpi_ut_create_buffer_object(new_length); - if (!return_desc) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* - * Copy the templates to the new buffer, 0 first, then 1 follows. One - * end_tag descriptor is copied from Operand1. - */ - new_buf = return_desc->buffer.pointer; - ACPI_MEMCPY(new_buf, operand0->buffer.pointer, length0); - ACPI_MEMCPY(new_buf + length0, operand1->buffer.pointer, length1); - - /* Insert end_tag and set the checksum to zero, means "ignore checksum" */ - - new_buf[new_length - 1] = 0; - new_buf[new_length - 2] = ACPI_RESOURCE_NAME_END_TAG | 1; - - /* Return the completed resource template */ - - *actual_return_desc = return_desc; - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_do_concatenate - * - * PARAMETERS: Operand0 - First source object - * Operand1 - Second source object - * actual_return_desc - Where to place the return object - * walk_state - Current walk state - * - * RETURN: Status - * - * DESCRIPTION: Concatenate two objects OF THE SAME TYPE. - * - ******************************************************************************/ - -acpi_status -acpi_ex_do_concatenate(union acpi_operand_object *operand0, - union acpi_operand_object *operand1, - union acpi_operand_object **actual_return_desc, - struct acpi_walk_state *walk_state) -{ - union acpi_operand_object *local_operand1 = operand1; - union acpi_operand_object *return_desc; - char *new_buf; - acpi_status status; - - ACPI_FUNCTION_TRACE(ex_do_concatenate); - - /* - * Convert the second operand if necessary. The first operand - * determines the type of the second operand, (See the Data Types - * section of the ACPI specification.) Both object types are - * guaranteed to be either Integer/String/Buffer by the operand - * resolution mechanism. - */ - switch (ACPI_GET_OBJECT_TYPE(operand0)) { - case ACPI_TYPE_INTEGER: - status = - acpi_ex_convert_to_integer(operand1, &local_operand1, 16); - break; - - case ACPI_TYPE_STRING: - status = acpi_ex_convert_to_string(operand1, &local_operand1, - ACPI_IMPLICIT_CONVERT_HEX); - break; - - case ACPI_TYPE_BUFFER: - status = acpi_ex_convert_to_buffer(operand1, &local_operand1); - break; - - default: - ACPI_ERROR((AE_INFO, "Invalid object type: %X", - ACPI_GET_OBJECT_TYPE(operand0))); - status = AE_AML_INTERNAL; - } - - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - /* - * Both operands are now known to be the same object type - * (Both are Integer, String, or Buffer), and we can now perform the - * concatenation. - */ - - /* - * There are three cases to handle: - * - * 1) Two Integers concatenated to produce a new Buffer - * 2) Two Strings concatenated to produce a new String - * 3) Two Buffers concatenated to produce a new Buffer - */ - switch (ACPI_GET_OBJECT_TYPE(operand0)) { - case ACPI_TYPE_INTEGER: - - /* Result of two Integers is a Buffer */ - /* Need enough buffer space for two integers */ - - return_desc = acpi_ut_create_buffer_object((acpi_size) - ACPI_MUL_2 - (acpi_gbl_integer_byte_width)); - if (!return_desc) { - status = AE_NO_MEMORY; - goto cleanup; - } - - new_buf = (char *)return_desc->buffer.pointer; - - /* Copy the first integer, LSB first */ - - ACPI_MEMCPY(new_buf, &operand0->integer.value, - acpi_gbl_integer_byte_width); - - /* Copy the second integer (LSB first) after the first */ - - ACPI_MEMCPY(new_buf + acpi_gbl_integer_byte_width, - &local_operand1->integer.value, - acpi_gbl_integer_byte_width); - break; - - case ACPI_TYPE_STRING: - - /* Result of two Strings is a String */ - - return_desc = acpi_ut_create_string_object(((acpi_size) - operand0->string. - length + - local_operand1-> - string.length)); - if (!return_desc) { - status = AE_NO_MEMORY; - goto cleanup; - } - - new_buf = return_desc->string.pointer; - - /* Concatenate the strings */ - - ACPI_STRCPY(new_buf, operand0->string.pointer); - ACPI_STRCPY(new_buf + operand0->string.length, - local_operand1->string.pointer); - break; - - case ACPI_TYPE_BUFFER: - - /* Result of two Buffers is a Buffer */ - - return_desc = acpi_ut_create_buffer_object(((acpi_size) - operand0->buffer. - length + - local_operand1-> - buffer.length)); - if (!return_desc) { - status = AE_NO_MEMORY; - goto cleanup; - } - - new_buf = (char *)return_desc->buffer.pointer; - - /* Concatenate the buffers */ - - ACPI_MEMCPY(new_buf, operand0->buffer.pointer, - operand0->buffer.length); - ACPI_MEMCPY(new_buf + operand0->buffer.length, - local_operand1->buffer.pointer, - local_operand1->buffer.length); - break; - - default: - - /* Invalid object type, should not happen here */ - - ACPI_ERROR((AE_INFO, "Invalid object type: %X", - ACPI_GET_OBJECT_TYPE(operand0))); - status = AE_AML_INTERNAL; - goto cleanup; - } - - *actual_return_desc = return_desc; - - cleanup: - if (local_operand1 != operand1) { - acpi_ut_remove_reference(local_operand1); - } - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_do_math_op - * - * PARAMETERS: Opcode - AML opcode - * Integer0 - Integer operand #0 - * Integer1 - Integer operand #1 - * - * RETURN: Integer result of the operation - * - * DESCRIPTION: Execute a math AML opcode. The purpose of having all of the - * math functions here is to prevent a lot of pointer dereferencing - * to obtain the operands. - * - ******************************************************************************/ - -acpi_integer -acpi_ex_do_math_op(u16 opcode, acpi_integer integer0, acpi_integer integer1) -{ - - ACPI_FUNCTION_ENTRY(); - - switch (opcode) { - case AML_ADD_OP: /* Add (Integer0, Integer1, Result) */ - - return (integer0 + integer1); - - case AML_BIT_AND_OP: /* And (Integer0, Integer1, Result) */ - - return (integer0 & integer1); - - case AML_BIT_NAND_OP: /* NAnd (Integer0, Integer1, Result) */ - - return (~(integer0 & integer1)); - - case AML_BIT_OR_OP: /* Or (Integer0, Integer1, Result) */ - - return (integer0 | integer1); - - case AML_BIT_NOR_OP: /* NOr (Integer0, Integer1, Result) */ - - return (~(integer0 | integer1)); - - case AML_BIT_XOR_OP: /* XOr (Integer0, Integer1, Result) */ - - return (integer0 ^ integer1); - - case AML_MULTIPLY_OP: /* Multiply (Integer0, Integer1, Result) */ - - return (integer0 * integer1); - - case AML_SHIFT_LEFT_OP: /* shift_left (Operand, shift_count, Result) */ - - /* - * We need to check if the shiftcount is larger than the integer bit - * width since the behavior of this is not well-defined in the C language. - */ - if (integer1 >= acpi_gbl_integer_bit_width) { - return (0); - } - return (integer0 << integer1); - - case AML_SHIFT_RIGHT_OP: /* shift_right (Operand, shift_count, Result) */ - - /* - * We need to check if the shiftcount is larger than the integer bit - * width since the behavior of this is not well-defined in the C language. - */ - if (integer1 >= acpi_gbl_integer_bit_width) { - return (0); - } - return (integer0 >> integer1); - - case AML_SUBTRACT_OP: /* Subtract (Integer0, Integer1, Result) */ - - return (integer0 - integer1); - - default: - - return (0); - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_do_logical_numeric_op - * - * PARAMETERS: Opcode - AML opcode - * Integer0 - Integer operand #0 - * Integer1 - Integer operand #1 - * logical_result - TRUE/FALSE result of the operation - * - * RETURN: Status - * - * DESCRIPTION: Execute a logical "Numeric" AML opcode. For these Numeric - * operators (LAnd and LOr), both operands must be integers. - * - * Note: cleanest machine code seems to be produced by the code - * below, rather than using statements of the form: - * Result = (Integer0 && Integer1); - * - ******************************************************************************/ - -acpi_status -acpi_ex_do_logical_numeric_op(u16 opcode, - acpi_integer integer0, - acpi_integer integer1, u8 * logical_result) -{ - acpi_status status = AE_OK; - u8 local_result = FALSE; - - ACPI_FUNCTION_TRACE(ex_do_logical_numeric_op); - - switch (opcode) { - case AML_LAND_OP: /* LAnd (Integer0, Integer1) */ - - if (integer0 && integer1) { - local_result = TRUE; - } - break; - - case AML_LOR_OP: /* LOr (Integer0, Integer1) */ - - if (integer0 || integer1) { - local_result = TRUE; - } - break; - - default: - status = AE_AML_INTERNAL; - break; - } - - /* Return the logical result and status */ - - *logical_result = local_result; - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_do_logical_op - * - * PARAMETERS: Opcode - AML opcode - * Operand0 - operand #0 - * Operand1 - operand #1 - * logical_result - TRUE/FALSE result of the operation - * - * RETURN: Status - * - * DESCRIPTION: Execute a logical AML opcode. The purpose of having all of the - * functions here is to prevent a lot of pointer dereferencing - * to obtain the operands and to simplify the generation of the - * logical value. For the Numeric operators (LAnd and LOr), both - * operands must be integers. For the other logical operators, - * operands can be any combination of Integer/String/Buffer. The - * first operand determines the type to which the second operand - * will be converted. - * - * Note: cleanest machine code seems to be produced by the code - * below, rather than using statements of the form: - * Result = (Operand0 == Operand1); - * - ******************************************************************************/ - -acpi_status -acpi_ex_do_logical_op(u16 opcode, - union acpi_operand_object *operand0, - union acpi_operand_object *operand1, u8 * logical_result) -{ - union acpi_operand_object *local_operand1 = operand1; - acpi_integer integer0; - acpi_integer integer1; - u32 length0; - u32 length1; - acpi_status status = AE_OK; - u8 local_result = FALSE; - int compare; - - ACPI_FUNCTION_TRACE(ex_do_logical_op); - - /* - * Convert the second operand if necessary. The first operand - * determines the type of the second operand, (See the Data Types - * section of the ACPI 3.0+ specification.) Both object types are - * guaranteed to be either Integer/String/Buffer by the operand - * resolution mechanism. - */ - switch (ACPI_GET_OBJECT_TYPE(operand0)) { - case ACPI_TYPE_INTEGER: - status = - acpi_ex_convert_to_integer(operand1, &local_operand1, 16); - break; - - case ACPI_TYPE_STRING: - status = acpi_ex_convert_to_string(operand1, &local_operand1, - ACPI_IMPLICIT_CONVERT_HEX); - break; - - case ACPI_TYPE_BUFFER: - status = acpi_ex_convert_to_buffer(operand1, &local_operand1); - break; - - default: - status = AE_AML_INTERNAL; - break; - } - - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - /* - * Two cases: 1) Both Integers, 2) Both Strings or Buffers - */ - if (ACPI_GET_OBJECT_TYPE(operand0) == ACPI_TYPE_INTEGER) { - /* - * 1) Both operands are of type integer - * Note: local_operand1 may have changed above - */ - integer0 = operand0->integer.value; - integer1 = local_operand1->integer.value; - - switch (opcode) { - case AML_LEQUAL_OP: /* LEqual (Operand0, Operand1) */ - - if (integer0 == integer1) { - local_result = TRUE; - } - break; - - case AML_LGREATER_OP: /* LGreater (Operand0, Operand1) */ - - if (integer0 > integer1) { - local_result = TRUE; - } - break; - - case AML_LLESS_OP: /* LLess (Operand0, Operand1) */ - - if (integer0 < integer1) { - local_result = TRUE; - } - break; - - default: - status = AE_AML_INTERNAL; - break; - } - } else { - /* - * 2) Both operands are Strings or both are Buffers - * Note: Code below takes advantage of common Buffer/String - * object fields. local_operand1 may have changed above. Use - * memcmp to handle nulls in buffers. - */ - length0 = operand0->buffer.length; - length1 = local_operand1->buffer.length; - - /* Lexicographic compare: compare the data bytes */ - - compare = ACPI_MEMCMP(operand0->buffer.pointer, - local_operand1->buffer.pointer, - (length0 > length1) ? length1 : length0); - - switch (opcode) { - case AML_LEQUAL_OP: /* LEqual (Operand0, Operand1) */ - - /* Length and all bytes must be equal */ - - if ((length0 == length1) && (compare == 0)) { - - /* Length and all bytes match ==> TRUE */ - - local_result = TRUE; - } - break; - - case AML_LGREATER_OP: /* LGreater (Operand0, Operand1) */ - - if (compare > 0) { - local_result = TRUE; - goto cleanup; /* TRUE */ - } - if (compare < 0) { - goto cleanup; /* FALSE */ - } - - /* Bytes match (to shortest length), compare lengths */ - - if (length0 > length1) { - local_result = TRUE; - } - break; - - case AML_LLESS_OP: /* LLess (Operand0, Operand1) */ - - if (compare > 0) { - goto cleanup; /* FALSE */ - } - if (compare < 0) { - local_result = TRUE; - goto cleanup; /* TRUE */ - } - - /* Bytes match (to shortest length), compare lengths */ - - if (length0 < length1) { - local_result = TRUE; - } - break; - - default: - status = AE_AML_INTERNAL; - break; - } - } - - cleanup: - - /* New object was created if implicit conversion performed - delete */ - - if (local_operand1 != operand1) { - acpi_ut_remove_reference(local_operand1); - } - - /* Return the logical result and status */ - - *logical_result = local_result; - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/executer/exmutex.c b/drivers/acpi/executer/exmutex.c deleted file mode 100644 index f86bcee8d656..000000000000 --- a/drivers/acpi/executer/exmutex.c +++ /dev/null @@ -1,474 +0,0 @@ - -/****************************************************************************** - * - * Module Name: exmutex - ASL Mutex Acquire/Release functions - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include - -#define _COMPONENT ACPI_EXECUTER -ACPI_MODULE_NAME("exmutex") - -/* Local prototypes */ -static void -acpi_ex_link_mutex(union acpi_operand_object *obj_desc, - struct acpi_thread_state *thread); - -/******************************************************************************* - * - * FUNCTION: acpi_ex_unlink_mutex - * - * PARAMETERS: obj_desc - The mutex to be unlinked - * - * RETURN: None - * - * DESCRIPTION: Remove a mutex from the "AcquiredMutex" list - * - ******************************************************************************/ - -void acpi_ex_unlink_mutex(union acpi_operand_object *obj_desc) -{ - struct acpi_thread_state *thread = obj_desc->mutex.owner_thread; - - if (!thread) { - return; - } - - /* Doubly linked list */ - - if (obj_desc->mutex.next) { - (obj_desc->mutex.next)->mutex.prev = obj_desc->mutex.prev; - } - - if (obj_desc->mutex.prev) { - (obj_desc->mutex.prev)->mutex.next = obj_desc->mutex.next; - } else { - thread->acquired_mutex_list = obj_desc->mutex.next; - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_link_mutex - * - * PARAMETERS: obj_desc - The mutex to be linked - * Thread - Current executing thread object - * - * RETURN: None - * - * DESCRIPTION: Add a mutex to the "AcquiredMutex" list for this walk - * - ******************************************************************************/ - -static void -acpi_ex_link_mutex(union acpi_operand_object *obj_desc, - struct acpi_thread_state *thread) -{ - union acpi_operand_object *list_head; - - list_head = thread->acquired_mutex_list; - - /* This object will be the first object in the list */ - - obj_desc->mutex.prev = NULL; - obj_desc->mutex.next = list_head; - - /* Update old first object to point back to this object */ - - if (list_head) { - list_head->mutex.prev = obj_desc; - } - - /* Update list head */ - - thread->acquired_mutex_list = obj_desc; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_acquire_mutex_object - * - * PARAMETERS: time_desc - Timeout in milliseconds - * obj_desc - Mutex object - * Thread - Current thread state - * - * RETURN: Status - * - * DESCRIPTION: Acquire an AML mutex, low-level interface. Provides a common - * path that supports multiple acquires by the same thread. - * - * MUTEX: Interpreter must be locked - * - * NOTE: This interface is called from three places: - * 1) From acpi_ex_acquire_mutex, via an AML Acquire() operator - * 2) From acpi_ex_acquire_global_lock when an AML Field access requires the - * global lock - * 3) From the external interface, acpi_acquire_global_lock - * - ******************************************************************************/ - -acpi_status -acpi_ex_acquire_mutex_object(u16 timeout, - union acpi_operand_object *obj_desc, - acpi_thread_id thread_id) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE_PTR(ex_acquire_mutex_object, obj_desc); - - if (!obj_desc) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Support for multiple acquires by the owning thread */ - - if (obj_desc->mutex.thread_id == thread_id) { - /* - * The mutex is already owned by this thread, just increment the - * acquisition depth - */ - obj_desc->mutex.acquisition_depth++; - return_ACPI_STATUS(AE_OK); - } - - /* Acquire the mutex, wait if necessary. Special case for Global Lock */ - - if (obj_desc == acpi_gbl_global_lock_mutex) { - status = acpi_ev_acquire_global_lock(timeout); - } else { - status = acpi_ex_system_wait_mutex(obj_desc->mutex.os_mutex, - timeout); - } - - if (ACPI_FAILURE(status)) { - - /* Includes failure from a timeout on time_desc */ - - return_ACPI_STATUS(status); - } - - /* Acquired the mutex: update mutex object */ - - obj_desc->mutex.thread_id = thread_id; - obj_desc->mutex.acquisition_depth = 1; - obj_desc->mutex.original_sync_level = 0; - obj_desc->mutex.owner_thread = NULL; /* Used only for AML Acquire() */ - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_acquire_mutex - * - * PARAMETERS: time_desc - Timeout integer - * obj_desc - Mutex object - * walk_state - Current method execution state - * - * RETURN: Status - * - * DESCRIPTION: Acquire an AML mutex - * - ******************************************************************************/ - -acpi_status -acpi_ex_acquire_mutex(union acpi_operand_object *time_desc, - union acpi_operand_object *obj_desc, - struct acpi_walk_state *walk_state) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE_PTR(ex_acquire_mutex, obj_desc); - - if (!obj_desc) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Must have a valid thread ID */ - - if (!walk_state->thread) { - ACPI_ERROR((AE_INFO, - "Cannot acquire Mutex [%4.4s], null thread info", - acpi_ut_get_node_name(obj_desc->mutex.node))); - return_ACPI_STATUS(AE_AML_INTERNAL); - } - - /* - * Current sync level must be less than or equal to the sync level of the - * mutex. This mechanism provides some deadlock prevention - */ - if (walk_state->thread->current_sync_level > obj_desc->mutex.sync_level) { - ACPI_ERROR((AE_INFO, - "Cannot acquire Mutex [%4.4s], current SyncLevel is too large (%d)", - acpi_ut_get_node_name(obj_desc->mutex.node), - walk_state->thread->current_sync_level)); - return_ACPI_STATUS(AE_AML_MUTEX_ORDER); - } - - status = acpi_ex_acquire_mutex_object((u16) time_desc->integer.value, - obj_desc, - walk_state->thread->thread_id); - if (ACPI_SUCCESS(status) && obj_desc->mutex.acquisition_depth == 1) { - - /* Save Thread object, original/current sync levels */ - - obj_desc->mutex.owner_thread = walk_state->thread; - obj_desc->mutex.original_sync_level = - walk_state->thread->current_sync_level; - walk_state->thread->current_sync_level = - obj_desc->mutex.sync_level; - - /* Link the mutex to the current thread for force-unlock at method exit */ - - acpi_ex_link_mutex(obj_desc, walk_state->thread); - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_release_mutex_object - * - * PARAMETERS: obj_desc - The object descriptor for this op - * - * RETURN: Status - * - * DESCRIPTION: Release a previously acquired Mutex, low level interface. - * Provides a common path that supports multiple releases (after - * previous multiple acquires) by the same thread. - * - * MUTEX: Interpreter must be locked - * - * NOTE: This interface is called from three places: - * 1) From acpi_ex_release_mutex, via an AML Acquire() operator - * 2) From acpi_ex_release_global_lock when an AML Field access requires the - * global lock - * 3) From the external interface, acpi_release_global_lock - * - ******************************************************************************/ - -acpi_status acpi_ex_release_mutex_object(union acpi_operand_object *obj_desc) -{ - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(ex_release_mutex_object); - - if (obj_desc->mutex.acquisition_depth == 0) { - return (AE_NOT_ACQUIRED); - } - - /* Match multiple Acquires with multiple Releases */ - - obj_desc->mutex.acquisition_depth--; - if (obj_desc->mutex.acquisition_depth != 0) { - - /* Just decrement the depth and return */ - - return_ACPI_STATUS(AE_OK); - } - - if (obj_desc->mutex.owner_thread) { - - /* Unlink the mutex from the owner's list */ - - acpi_ex_unlink_mutex(obj_desc); - obj_desc->mutex.owner_thread = NULL; - } - - /* Release the mutex, special case for Global Lock */ - - if (obj_desc == acpi_gbl_global_lock_mutex) { - status = acpi_ev_release_global_lock(); - } else { - acpi_os_release_mutex(obj_desc->mutex.os_mutex); - } - - /* Clear mutex info */ - - obj_desc->mutex.thread_id = NULL; - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_release_mutex - * - * PARAMETERS: obj_desc - The object descriptor for this op - * walk_state - Current method execution state - * - * RETURN: Status - * - * DESCRIPTION: Release a previously acquired Mutex. - * - ******************************************************************************/ - -acpi_status -acpi_ex_release_mutex(union acpi_operand_object *obj_desc, - struct acpi_walk_state *walk_state) -{ - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(ex_release_mutex); - - if (!obj_desc) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* The mutex must have been previously acquired in order to release it */ - - if (!obj_desc->mutex.owner_thread) { - ACPI_ERROR((AE_INFO, - "Cannot release Mutex [%4.4s], not acquired", - acpi_ut_get_node_name(obj_desc->mutex.node))); - return_ACPI_STATUS(AE_AML_MUTEX_NOT_ACQUIRED); - } - - /* - * The Mutex is owned, but this thread must be the owner. - * Special case for Global Lock, any thread can release - */ - if ((obj_desc->mutex.owner_thread->thread_id != - walk_state->thread->thread_id) - && (obj_desc != acpi_gbl_global_lock_mutex)) { - ACPI_ERROR((AE_INFO, - "Thread %lX cannot release Mutex [%4.4s] acquired by thread %lX", - (unsigned long)walk_state->thread->thread_id, - acpi_ut_get_node_name(obj_desc->mutex.node), - (unsigned long)obj_desc->mutex.owner_thread-> - thread_id)); - return_ACPI_STATUS(AE_AML_NOT_OWNER); - } - - /* Must have a valid thread ID */ - - if (!walk_state->thread) { - ACPI_ERROR((AE_INFO, - "Cannot release Mutex [%4.4s], null thread info", - acpi_ut_get_node_name(obj_desc->mutex.node))); - return_ACPI_STATUS(AE_AML_INTERNAL); - } - - /* - * The sync level of the mutex must be less than or equal to the current - * sync level - */ - if (obj_desc->mutex.sync_level > walk_state->thread->current_sync_level) { - ACPI_ERROR((AE_INFO, - "Cannot release Mutex [%4.4s], SyncLevel mismatch: mutex %d current %d", - acpi_ut_get_node_name(obj_desc->mutex.node), - obj_desc->mutex.sync_level, - walk_state->thread->current_sync_level)); - return_ACPI_STATUS(AE_AML_MUTEX_ORDER); - } - - status = acpi_ex_release_mutex_object(obj_desc); - - if (obj_desc->mutex.acquisition_depth == 0) { - - /* Restore the original sync_level */ - - walk_state->thread->current_sync_level = - obj_desc->mutex.original_sync_level; - } - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_release_all_mutexes - * - * PARAMETERS: Thread - Current executing thread object - * - * RETURN: Status - * - * DESCRIPTION: Release all mutexes held by this thread - * - * NOTE: This function is called as the thread is exiting the interpreter. - * Mutexes are not released when an individual control method is exited, but - * only when the parent thread actually exits the interpreter. This allows one - * method to acquire a mutex, and a different method to release it, as long as - * this is performed underneath a single parent control method. - * - ******************************************************************************/ - -void acpi_ex_release_all_mutexes(struct acpi_thread_state *thread) -{ - union acpi_operand_object *next = thread->acquired_mutex_list; - union acpi_operand_object *obj_desc; - - ACPI_FUNCTION_ENTRY(); - - /* Traverse the list of owned mutexes, releasing each one */ - - while (next) { - obj_desc = next; - next = obj_desc->mutex.next; - - obj_desc->mutex.prev = NULL; - obj_desc->mutex.next = NULL; - obj_desc->mutex.acquisition_depth = 0; - - /* Release the mutex, special case for Global Lock */ - - if (obj_desc == acpi_gbl_global_lock_mutex) { - - /* Ignore errors */ - - (void)acpi_ev_release_global_lock(); - } else { - acpi_os_release_mutex(obj_desc->mutex.os_mutex); - } - - /* Mark mutex unowned */ - - obj_desc->mutex.owner_thread = NULL; - obj_desc->mutex.thread_id = NULL; - - /* Update Thread sync_level (Last mutex is the important one) */ - - thread->current_sync_level = - obj_desc->mutex.original_sync_level; - } -} diff --git a/drivers/acpi/executer/exnames.c b/drivers/acpi/executer/exnames.c deleted file mode 100644 index 12d3513531e1..000000000000 --- a/drivers/acpi/executer/exnames.c +++ /dev/null @@ -1,436 +0,0 @@ - -/****************************************************************************** - * - * Module Name: exnames - interpreter/scanner name load/execute - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include - -#define _COMPONENT ACPI_EXECUTER -ACPI_MODULE_NAME("exnames") - -/* Local prototypes */ -static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs); - -static acpi_status -acpi_ex_name_segment(u8 ** in_aml_address, char *name_string); - -/******************************************************************************* - * - * FUNCTION: acpi_ex_allocate_name_string - * - * PARAMETERS: prefix_count - Count of parent levels. Special cases: - * (-1)==root, 0==none - * num_name_segs - count of 4-character name segments - * - * RETURN: A pointer to the allocated string segment. This segment must - * be deleted by the caller. - * - * DESCRIPTION: Allocate a buffer for a name string. Ensure allocated name - * string is long enough, and set up prefix if any. - * - ******************************************************************************/ - -static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs) -{ - char *temp_ptr; - char *name_string; - u32 size_needed; - - ACPI_FUNCTION_TRACE(ex_allocate_name_string); - - /* - * Allow room for all \ and ^ prefixes, all segments and a multi_name_prefix. - * Also, one byte for the null terminator. - * This may actually be somewhat longer than needed. - */ - if (prefix_count == ACPI_UINT32_MAX) { - - /* Special case for root */ - - size_needed = 1 + (ACPI_NAME_SIZE * num_name_segs) + 2 + 1; - } else { - size_needed = - prefix_count + (ACPI_NAME_SIZE * num_name_segs) + 2 + 1; - } - - /* - * Allocate a buffer for the name. - * This buffer must be deleted by the caller! - */ - name_string = ACPI_ALLOCATE(size_needed); - if (!name_string) { - ACPI_ERROR((AE_INFO, - "Could not allocate size %d", size_needed)); - return_PTR(NULL); - } - - temp_ptr = name_string; - - /* Set up Root or Parent prefixes if needed */ - - if (prefix_count == ACPI_UINT32_MAX) { - *temp_ptr++ = AML_ROOT_PREFIX; - } else { - while (prefix_count--) { - *temp_ptr++ = AML_PARENT_PREFIX; - } - } - - /* Set up Dual or Multi prefixes if needed */ - - if (num_name_segs > 2) { - - /* Set up multi prefixes */ - - *temp_ptr++ = AML_MULTI_NAME_PREFIX_OP; - *temp_ptr++ = (char)num_name_segs; - } else if (2 == num_name_segs) { - - /* Set up dual prefixes */ - - *temp_ptr++ = AML_DUAL_NAME_PREFIX; - } - - /* - * Terminate string following prefixes. acpi_ex_name_segment() will - * append the segment(s) - */ - *temp_ptr = 0; - - return_PTR(name_string); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_name_segment - * - * PARAMETERS: in_aml_address - Pointer to the name in the AML code - * name_string - Where to return the name. The name is appended - * to any existing string to form a namepath - * - * RETURN: Status - * - * DESCRIPTION: Extract an ACPI name (4 bytes) from the AML byte stream - * - ******************************************************************************/ - -static acpi_status acpi_ex_name_segment(u8 ** in_aml_address, char *name_string) -{ - char *aml_address = (void *)*in_aml_address; - acpi_status status = AE_OK; - u32 index; - char char_buf[5]; - - ACPI_FUNCTION_TRACE(ex_name_segment); - - /* - * If first character is a digit, then we know that we aren't looking at a - * valid name segment - */ - char_buf[0] = *aml_address; - - if ('0' <= char_buf[0] && char_buf[0] <= '9') { - ACPI_ERROR((AE_INFO, "Invalid leading digit: %c", char_buf[0])); - return_ACPI_STATUS(AE_CTRL_PENDING); - } - - ACPI_DEBUG_PRINT((ACPI_DB_LOAD, "Bytes from stream:\n")); - - for (index = 0; (index < ACPI_NAME_SIZE) - && (acpi_ut_valid_acpi_char(*aml_address, 0)); index++) { - char_buf[index] = *aml_address++; - ACPI_DEBUG_PRINT((ACPI_DB_LOAD, "%c\n", char_buf[index])); - } - - /* Valid name segment */ - - if (index == 4) { - - /* Found 4 valid characters */ - - char_buf[4] = '\0'; - - if (name_string) { - ACPI_STRCAT(name_string, char_buf); - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Appended to - %s\n", name_string)); - } else { - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "No Name string - %s\n", char_buf)); - } - } else if (index == 0) { - /* - * First character was not a valid name character, - * so we are looking at something other than a name. - */ - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Leading character is not alpha: %02Xh (not a name)\n", - char_buf[0])); - status = AE_CTRL_PENDING; - } else { - /* - * Segment started with one or more valid characters, but fewer than - * the required 4 - */ - status = AE_AML_BAD_NAME; - ACPI_ERROR((AE_INFO, - "Bad character %02x in name, at %p", - *aml_address, aml_address)); - } - - *in_aml_address = ACPI_CAST_PTR(u8, aml_address); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_get_name_string - * - * PARAMETERS: data_type - Object type to be associated with this - * name - * in_aml_address - Pointer to the namestring in the AML code - * out_name_string - Where the namestring is returned - * out_name_length - Length of the returned string - * - * RETURN: Status, namestring and length - * - * DESCRIPTION: Extract a full namepath from the AML byte stream, - * including any prefixes. - * - ******************************************************************************/ - -acpi_status -acpi_ex_get_name_string(acpi_object_type data_type, - u8 * in_aml_address, - char **out_name_string, u32 * out_name_length) -{ - acpi_status status = AE_OK; - u8 *aml_address = in_aml_address; - char *name_string = NULL; - u32 num_segments; - u32 prefix_count = 0; - u8 has_prefix = FALSE; - - ACPI_FUNCTION_TRACE_PTR(ex_get_name_string, aml_address); - - if (ACPI_TYPE_LOCAL_REGION_FIELD == data_type || - ACPI_TYPE_LOCAL_BANK_FIELD == data_type || - ACPI_TYPE_LOCAL_INDEX_FIELD == data_type) { - - /* Disallow prefixes for types associated with field_unit names */ - - name_string = acpi_ex_allocate_name_string(0, 1); - if (!name_string) { - status = AE_NO_MEMORY; - } else { - status = - acpi_ex_name_segment(&aml_address, name_string); - } - } else { - /* - * data_type is not a field name. - * Examine first character of name for root or parent prefix operators - */ - switch (*aml_address) { - case AML_ROOT_PREFIX: - - ACPI_DEBUG_PRINT((ACPI_DB_LOAD, - "RootPrefix(\\) at %p\n", - aml_address)); - - /* - * Remember that we have a root_prefix -- - * see comment in acpi_ex_allocate_name_string() - */ - aml_address++; - prefix_count = ACPI_UINT32_MAX; - has_prefix = TRUE; - break; - - case AML_PARENT_PREFIX: - - /* Increment past possibly multiple parent prefixes */ - - do { - ACPI_DEBUG_PRINT((ACPI_DB_LOAD, - "ParentPrefix (^) at %p\n", - aml_address)); - - aml_address++; - prefix_count++; - - } while (*aml_address == AML_PARENT_PREFIX); - - has_prefix = TRUE; - break; - - default: - - /* Not a prefix character */ - - break; - } - - /* Examine first character of name for name segment prefix operator */ - - switch (*aml_address) { - case AML_DUAL_NAME_PREFIX: - - ACPI_DEBUG_PRINT((ACPI_DB_LOAD, - "DualNamePrefix at %p\n", - aml_address)); - - aml_address++; - name_string = - acpi_ex_allocate_name_string(prefix_count, 2); - if (!name_string) { - status = AE_NO_MEMORY; - break; - } - - /* Indicate that we processed a prefix */ - - has_prefix = TRUE; - - status = - acpi_ex_name_segment(&aml_address, name_string); - if (ACPI_SUCCESS(status)) { - status = - acpi_ex_name_segment(&aml_address, - name_string); - } - break; - - case AML_MULTI_NAME_PREFIX_OP: - - ACPI_DEBUG_PRINT((ACPI_DB_LOAD, - "MultiNamePrefix at %p\n", - aml_address)); - - /* Fetch count of segments remaining in name path */ - - aml_address++; - num_segments = *aml_address; - - name_string = - acpi_ex_allocate_name_string(prefix_count, - num_segments); - if (!name_string) { - status = AE_NO_MEMORY; - break; - } - - /* Indicate that we processed a prefix */ - - aml_address++; - has_prefix = TRUE; - - while (num_segments && - (status = - acpi_ex_name_segment(&aml_address, - name_string)) == AE_OK) { - num_segments--; - } - - break; - - case 0: - - /* null_name valid as of 8-12-98 ASL/AML Grammar Update */ - - if (prefix_count == ACPI_UINT32_MAX) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "NameSeg is \"\\\" followed by NULL\n")); - } - - /* Consume the NULL byte */ - - aml_address++; - name_string = - acpi_ex_allocate_name_string(prefix_count, 0); - if (!name_string) { - status = AE_NO_MEMORY; - break; - } - - break; - - default: - - /* Name segment string */ - - name_string = - acpi_ex_allocate_name_string(prefix_count, 1); - if (!name_string) { - status = AE_NO_MEMORY; - break; - } - - status = - acpi_ex_name_segment(&aml_address, name_string); - break; - } - } - - if (AE_CTRL_PENDING == status && has_prefix) { - - /* Ran out of segments after processing a prefix */ - - ACPI_ERROR((AE_INFO, "Malformed Name at %p", name_string)); - status = AE_AML_BAD_NAME; - } - - if (ACPI_FAILURE(status)) { - if (name_string) { - ACPI_FREE(name_string); - } - return_ACPI_STATUS(status); - } - - *out_name_string = name_string; - *out_name_length = (u32) (aml_address - in_aml_address); - - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/executer/exoparg1.c b/drivers/acpi/executer/exoparg1.c deleted file mode 100644 index 52d78b8622be..000000000000 --- a/drivers/acpi/executer/exoparg1.c +++ /dev/null @@ -1,1050 +0,0 @@ - -/****************************************************************************** - * - * Module Name: exoparg1 - AML execution - opcodes with 1 argument - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_EXECUTER -ACPI_MODULE_NAME("exoparg1") - -/*! - * Naming convention for AML interpreter execution routines. - * - * The routines that begin execution of AML opcodes are named with a common - * convention based upon the number of arguments, the number of target operands, - * and whether or not a value is returned: - * - * AcpiExOpcode_xA_yT_zR - * - * Where: - * - * xA - ARGUMENTS: The number of arguments (input operands) that are - * required for this opcode type (0 through 6 args). - * yT - TARGETS: The number of targets (output operands) that are required - * for this opcode type (0, 1, or 2 targets). - * zR - RETURN VALUE: Indicates whether this opcode type returns a value - * as the function return (0 or 1). - * - * The AcpiExOpcode* functions are called via the Dispatcher component with - * fully resolved operands. -!*/ -/******************************************************************************* - * - * FUNCTION: acpi_ex_opcode_0A_0T_1R - * - * PARAMETERS: walk_state - Current state (contains AML opcode) - * - * RETURN: Status - * - * DESCRIPTION: Execute operator with no operands, one return value - * - ******************************************************************************/ -acpi_status acpi_ex_opcode_0A_0T_1R(struct acpi_walk_state *walk_state) -{ - acpi_status status = AE_OK; - union acpi_operand_object *return_desc = NULL; - - ACPI_FUNCTION_TRACE_STR(ex_opcode_0A_0T_1R, - acpi_ps_get_opcode_name(walk_state->opcode)); - - /* Examine the AML opcode */ - - switch (walk_state->opcode) { - case AML_TIMER_OP: /* Timer () */ - - /* Create a return object of type Integer */ - - return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); - if (!return_desc) { - status = AE_NO_MEMORY; - goto cleanup; - } - return_desc->integer.value = acpi_os_get_timer(); - break; - - default: /* Unknown opcode */ - - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", - walk_state->opcode)); - status = AE_AML_BAD_OPCODE; - break; - } - - cleanup: - - /* Delete return object on error */ - - if ((ACPI_FAILURE(status)) || walk_state->result_obj) { - acpi_ut_remove_reference(return_desc); - walk_state->result_obj = NULL; - } else { - /* Save the return value */ - - walk_state->result_obj = return_desc; - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_opcode_1A_0T_0R - * - * PARAMETERS: walk_state - Current state (contains AML opcode) - * - * RETURN: Status - * - * DESCRIPTION: Execute Type 1 monadic operator with numeric operand on - * object stack - * - ******************************************************************************/ - -acpi_status acpi_ex_opcode_1A_0T_0R(struct acpi_walk_state *walk_state) -{ - union acpi_operand_object **operand = &walk_state->operands[0]; - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_0T_0R, - acpi_ps_get_opcode_name(walk_state->opcode)); - - /* Examine the AML opcode */ - - switch (walk_state->opcode) { - case AML_RELEASE_OP: /* Release (mutex_object) */ - - status = acpi_ex_release_mutex(operand[0], walk_state); - break; - - case AML_RESET_OP: /* Reset (event_object) */ - - status = acpi_ex_system_reset_event(operand[0]); - break; - - case AML_SIGNAL_OP: /* Signal (event_object) */ - - status = acpi_ex_system_signal_event(operand[0]); - break; - - case AML_SLEEP_OP: /* Sleep (msec_time) */ - - status = acpi_ex_system_do_suspend(operand[0]->integer.value); - break; - - case AML_STALL_OP: /* Stall (usec_time) */ - - status = - acpi_ex_system_do_stall((u32) operand[0]->integer.value); - break; - - case AML_UNLOAD_OP: /* Unload (Handle) */ - - status = acpi_ex_unload_table(operand[0]); - break; - - default: /* Unknown opcode */ - - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", - walk_state->opcode)); - status = AE_AML_BAD_OPCODE; - break; - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_opcode_1A_1T_0R - * - * PARAMETERS: walk_state - Current state (contains AML opcode) - * - * RETURN: Status - * - * DESCRIPTION: Execute opcode with one argument, one target, and no - * return value. - * - ******************************************************************************/ - -acpi_status acpi_ex_opcode_1A_1T_0R(struct acpi_walk_state *walk_state) -{ - acpi_status status = AE_OK; - union acpi_operand_object **operand = &walk_state->operands[0]; - - ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_1T_0R, - acpi_ps_get_opcode_name(walk_state->opcode)); - - /* Examine the AML opcode */ - - switch (walk_state->opcode) { - case AML_LOAD_OP: - - status = acpi_ex_load_op(operand[0], operand[1], walk_state); - break; - - default: /* Unknown opcode */ - - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", - walk_state->opcode)); - status = AE_AML_BAD_OPCODE; - goto cleanup; - } - - cleanup: - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_opcode_1A_1T_1R - * - * PARAMETERS: walk_state - Current state (contains AML opcode) - * - * RETURN: Status - * - * DESCRIPTION: Execute opcode with one argument, one target, and a - * return value. - * - ******************************************************************************/ - -acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) -{ - acpi_status status = AE_OK; - union acpi_operand_object **operand = &walk_state->operands[0]; - union acpi_operand_object *return_desc = NULL; - union acpi_operand_object *return_desc2 = NULL; - u32 temp32; - u32 i; - acpi_integer power_of_ten; - acpi_integer digit; - - ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_1T_1R, - acpi_ps_get_opcode_name(walk_state->opcode)); - - /* Examine the AML opcode */ - - switch (walk_state->opcode) { - case AML_BIT_NOT_OP: - case AML_FIND_SET_LEFT_BIT_OP: - case AML_FIND_SET_RIGHT_BIT_OP: - case AML_FROM_BCD_OP: - case AML_TO_BCD_OP: - case AML_COND_REF_OF_OP: - - /* Create a return object of type Integer for these opcodes */ - - return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); - if (!return_desc) { - status = AE_NO_MEMORY; - goto cleanup; - } - - switch (walk_state->opcode) { - case AML_BIT_NOT_OP: /* Not (Operand, Result) */ - - return_desc->integer.value = ~operand[0]->integer.value; - break; - - case AML_FIND_SET_LEFT_BIT_OP: /* find_set_left_bit (Operand, Result) */ - - return_desc->integer.value = operand[0]->integer.value; - - /* - * Acpi specification describes Integer type as a little - * endian unsigned value, so this boundary condition is valid. - */ - for (temp32 = 0; return_desc->integer.value && - temp32 < ACPI_INTEGER_BIT_SIZE; ++temp32) { - return_desc->integer.value >>= 1; - } - - return_desc->integer.value = temp32; - break; - - case AML_FIND_SET_RIGHT_BIT_OP: /* find_set_right_bit (Operand, Result) */ - - return_desc->integer.value = operand[0]->integer.value; - - /* - * The Acpi specification describes Integer type as a little - * endian unsigned value, so this boundary condition is valid. - */ - for (temp32 = 0; return_desc->integer.value && - temp32 < ACPI_INTEGER_BIT_SIZE; ++temp32) { - return_desc->integer.value <<= 1; - } - - /* Since the bit position is one-based, subtract from 33 (65) */ - - return_desc->integer.value = - temp32 == - 0 ? 0 : (ACPI_INTEGER_BIT_SIZE + 1) - temp32; - break; - - case AML_FROM_BCD_OP: /* from_bcd (BCDValue, Result) */ - - /* - * The 64-bit ACPI integer can hold 16 4-bit BCD characters - * (if table is 32-bit, integer can hold 8 BCD characters) - * Convert each 4-bit BCD value - */ - power_of_ten = 1; - return_desc->integer.value = 0; - digit = operand[0]->integer.value; - - /* Convert each BCD digit (each is one nybble wide) */ - - for (i = 0; - (i < acpi_gbl_integer_nybble_width) && (digit > 0); - i++) { - - /* Get the least significant 4-bit BCD digit */ - - temp32 = ((u32) digit) & 0xF; - - /* Check the range of the digit */ - - if (temp32 > 9) { - ACPI_ERROR((AE_INFO, - "BCD digit too large (not decimal): 0x%X", - temp32)); - - status = AE_AML_NUMERIC_OVERFLOW; - goto cleanup; - } - - /* Sum the digit into the result with the current power of 10 */ - - return_desc->integer.value += - (((acpi_integer) temp32) * power_of_ten); - - /* Shift to next BCD digit */ - - digit >>= 4; - - /* Next power of 10 */ - - power_of_ten *= 10; - } - break; - - case AML_TO_BCD_OP: /* to_bcd (Operand, Result) */ - - return_desc->integer.value = 0; - digit = operand[0]->integer.value; - - /* Each BCD digit is one nybble wide */ - - for (i = 0; - (i < acpi_gbl_integer_nybble_width) && (digit > 0); - i++) { - (void)acpi_ut_short_divide(digit, 10, &digit, - &temp32); - - /* - * Insert the BCD digit that resides in the - * remainder from above - */ - return_desc->integer.value |= - (((acpi_integer) temp32) << ACPI_MUL_4(i)); - } - - /* Overflow if there is any data left in Digit */ - - if (digit > 0) { - ACPI_ERROR((AE_INFO, - "Integer too large to convert to BCD: %8.8X%8.8X", - ACPI_FORMAT_UINT64(operand[0]-> - integer.value))); - status = AE_AML_NUMERIC_OVERFLOW; - goto cleanup; - } - break; - - case AML_COND_REF_OF_OP: /* cond_ref_of (source_object, Result) */ - - /* - * This op is a little strange because the internal return value is - * different than the return value stored in the result descriptor - * (There are really two return values) - */ - if ((struct acpi_namespace_node *)operand[0] == - acpi_gbl_root_node) { - /* - * This means that the object does not exist in the namespace, - * return FALSE - */ - return_desc->integer.value = 0; - goto cleanup; - } - - /* Get the object reference, store it, and remove our reference */ - - status = acpi_ex_get_object_reference(operand[0], - &return_desc2, - walk_state); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - status = - acpi_ex_store(return_desc2, operand[1], walk_state); - acpi_ut_remove_reference(return_desc2); - - /* The object exists in the namespace, return TRUE */ - - return_desc->integer.value = ACPI_INTEGER_MAX; - goto cleanup; - - default: - /* No other opcodes get here */ - break; - } - break; - - case AML_STORE_OP: /* Store (Source, Target) */ - - /* - * A store operand is typically a number, string, buffer or lvalue - * Be careful about deleting the source object, - * since the object itself may have been stored. - */ - status = acpi_ex_store(operand[0], operand[1], walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* It is possible that the Store already produced a return object */ - - if (!walk_state->result_obj) { - /* - * Normally, we would remove a reference on the Operand[0] - * parameter; But since it is being used as the internal return - * object (meaning we would normally increment it), the two - * cancel out, and we simply don't do anything. - */ - walk_state->result_obj = operand[0]; - walk_state->operands[0] = NULL; /* Prevent deletion */ - } - return_ACPI_STATUS(status); - - /* - * ACPI 2.0 Opcodes - */ - case AML_COPY_OP: /* Copy (Source, Target) */ - - status = - acpi_ut_copy_iobject_to_iobject(operand[0], &return_desc, - walk_state); - break; - - case AML_TO_DECSTRING_OP: /* to_decimal_string (Data, Result) */ - - status = acpi_ex_convert_to_string(operand[0], &return_desc, - ACPI_EXPLICIT_CONVERT_DECIMAL); - if (return_desc == operand[0]) { - - /* No conversion performed, add ref to handle return value */ - acpi_ut_add_reference(return_desc); - } - break; - - case AML_TO_HEXSTRING_OP: /* to_hex_string (Data, Result) */ - - status = acpi_ex_convert_to_string(operand[0], &return_desc, - ACPI_EXPLICIT_CONVERT_HEX); - if (return_desc == operand[0]) { - - /* No conversion performed, add ref to handle return value */ - acpi_ut_add_reference(return_desc); - } - break; - - case AML_TO_BUFFER_OP: /* to_buffer (Data, Result) */ - - status = acpi_ex_convert_to_buffer(operand[0], &return_desc); - if (return_desc == operand[0]) { - - /* No conversion performed, add ref to handle return value */ - acpi_ut_add_reference(return_desc); - } - break; - - case AML_TO_INTEGER_OP: /* to_integer (Data, Result) */ - - status = acpi_ex_convert_to_integer(operand[0], &return_desc, - ACPI_ANY_BASE); - if (return_desc == operand[0]) { - - /* No conversion performed, add ref to handle return value */ - acpi_ut_add_reference(return_desc); - } - break; - - case AML_SHIFT_LEFT_BIT_OP: /* shift_left_bit (Source, bit_num) */ - case AML_SHIFT_RIGHT_BIT_OP: /* shift_right_bit (Source, bit_num) */ - - /* These are two obsolete opcodes */ - - ACPI_ERROR((AE_INFO, - "%s is obsolete and not implemented", - acpi_ps_get_opcode_name(walk_state->opcode))); - status = AE_SUPPORT; - goto cleanup; - - default: /* Unknown opcode */ - - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", - walk_state->opcode)); - status = AE_AML_BAD_OPCODE; - goto cleanup; - } - - if (ACPI_SUCCESS(status)) { - - /* Store the return value computed above into the target object */ - - status = acpi_ex_store(return_desc, operand[1], walk_state); - } - - cleanup: - - /* Delete return object on error */ - - if (ACPI_FAILURE(status)) { - acpi_ut_remove_reference(return_desc); - } - - /* Save return object on success */ - - else if (!walk_state->result_obj) { - walk_state->result_obj = return_desc; - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_opcode_1A_0T_1R - * - * PARAMETERS: walk_state - Current state (contains AML opcode) - * - * RETURN: Status - * - * DESCRIPTION: Execute opcode with one argument, no target, and a return value - * - ******************************************************************************/ - -acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) -{ - union acpi_operand_object **operand = &walk_state->operands[0]; - union acpi_operand_object *temp_desc; - union acpi_operand_object *return_desc = NULL; - acpi_status status = AE_OK; - u32 type; - acpi_integer value; - - ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_0T_1R, - acpi_ps_get_opcode_name(walk_state->opcode)); - - /* Examine the AML opcode */ - - switch (walk_state->opcode) { - case AML_LNOT_OP: /* LNot (Operand) */ - - return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); - if (!return_desc) { - status = AE_NO_MEMORY; - goto cleanup; - } - - /* - * Set result to ONES (TRUE) if Value == 0. Note: - * return_desc->Integer.Value is initially == 0 (FALSE) from above. - */ - if (!operand[0]->integer.value) { - return_desc->integer.value = ACPI_INTEGER_MAX; - } - break; - - case AML_DECREMENT_OP: /* Decrement (Operand) */ - case AML_INCREMENT_OP: /* Increment (Operand) */ - - /* - * Create a new integer. Can't just get the base integer and - * increment it because it may be an Arg or Field. - */ - return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); - if (!return_desc) { - status = AE_NO_MEMORY; - goto cleanup; - } - - /* - * Since we are expecting a Reference operand, it can be either a - * NS Node or an internal object. - */ - temp_desc = operand[0]; - if (ACPI_GET_DESCRIPTOR_TYPE(temp_desc) == - ACPI_DESC_TYPE_OPERAND) { - - /* Internal reference object - prevent deletion */ - - acpi_ut_add_reference(temp_desc); - } - - /* - * Convert the Reference operand to an Integer (This removes a - * reference on the Operand[0] object) - * - * NOTE: We use LNOT_OP here in order to force resolution of the - * reference operand to an actual integer. - */ - status = - acpi_ex_resolve_operands(AML_LNOT_OP, &temp_desc, - walk_state); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "While resolving operands for [%s]", - acpi_ps_get_opcode_name(walk_state-> - opcode))); - - goto cleanup; - } - - /* - * temp_desc is now guaranteed to be an Integer object -- - * Perform the actual increment or decrement - */ - if (walk_state->opcode == AML_INCREMENT_OP) { - return_desc->integer.value = - temp_desc->integer.value + 1; - } else { - return_desc->integer.value = - temp_desc->integer.value - 1; - } - - /* Finished with this Integer object */ - - acpi_ut_remove_reference(temp_desc); - - /* - * Store the result back (indirectly) through the original - * Reference object - */ - status = acpi_ex_store(return_desc, operand[0], walk_state); - break; - - case AML_TYPE_OP: /* object_type (source_object) */ - - /* - * Note: The operand is not resolved at this point because we want to - * get the associated object, not its value. For example, we don't - * want to resolve a field_unit to its value, we want the actual - * field_unit object. - */ - - /* Get the type of the base object */ - - status = - acpi_ex_resolve_multiple(walk_state, operand[0], &type, - NULL); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - /* Allocate a descriptor to hold the type. */ - - return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); - if (!return_desc) { - status = AE_NO_MEMORY; - goto cleanup; - } - - return_desc->integer.value = type; - break; - - case AML_SIZE_OF_OP: /* size_of (source_object) */ - - /* - * Note: The operand is not resolved at this point because we want to - * get the associated object, not its value. - */ - - /* Get the base object */ - - status = acpi_ex_resolve_multiple(walk_state, - operand[0], &type, - &temp_desc); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - /* - * The type of the base object must be integer, buffer, string, or - * package. All others are not supported. - * - * NOTE: Integer is not specifically supported by the ACPI spec, - * but is supported implicitly via implicit operand conversion. - * rather than bother with conversion, we just use the byte width - * global (4 or 8 bytes). - */ - switch (type) { - case ACPI_TYPE_INTEGER: - value = acpi_gbl_integer_byte_width; - break; - - case ACPI_TYPE_STRING: - value = temp_desc->string.length; - break; - - case ACPI_TYPE_BUFFER: - - /* Buffer arguments may not be evaluated at this point */ - - status = acpi_ds_get_buffer_arguments(temp_desc); - value = temp_desc->buffer.length; - break; - - case ACPI_TYPE_PACKAGE: - - /* Package arguments may not be evaluated at this point */ - - status = acpi_ds_get_package_arguments(temp_desc); - value = temp_desc->package.count; - break; - - default: - ACPI_ERROR((AE_INFO, - "Operand must be Buffer/Integer/String/Package - found type %s", - acpi_ut_get_type_name(type))); - status = AE_AML_OPERAND_TYPE; - goto cleanup; - } - - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - /* - * Now that we have the size of the object, create a result - * object to hold the value - */ - return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); - if (!return_desc) { - status = AE_NO_MEMORY; - goto cleanup; - } - - return_desc->integer.value = value; - break; - - case AML_REF_OF_OP: /* ref_of (source_object) */ - - status = - acpi_ex_get_object_reference(operand[0], &return_desc, - walk_state); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - break; - - case AML_DEREF_OF_OP: /* deref_of (obj_reference | String) */ - - /* Check for a method local or argument, or standalone String */ - - if (ACPI_GET_DESCRIPTOR_TYPE(operand[0]) == - ACPI_DESC_TYPE_NAMED) { - temp_desc = - acpi_ns_get_attached_object((struct - acpi_namespace_node *) - operand[0]); - if (temp_desc - && - ((ACPI_GET_OBJECT_TYPE(temp_desc) == - ACPI_TYPE_STRING) - || (ACPI_GET_OBJECT_TYPE(temp_desc) == - ACPI_TYPE_LOCAL_REFERENCE))) { - operand[0] = temp_desc; - acpi_ut_add_reference(temp_desc); - } else { - status = AE_AML_OPERAND_TYPE; - goto cleanup; - } - } else { - switch (ACPI_GET_OBJECT_TYPE(operand[0])) { - case ACPI_TYPE_LOCAL_REFERENCE: - /* - * This is a deref_of (local_x | arg_x) - * - * Must resolve/dereference the local/arg reference first - */ - switch (operand[0]->reference.class) { - case ACPI_REFCLASS_LOCAL: - case ACPI_REFCLASS_ARG: - - /* Set Operand[0] to the value of the local/arg */ - - status = - acpi_ds_method_data_get_value - (operand[0]->reference.class, - operand[0]->reference.value, - walk_state, &temp_desc); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - /* - * Delete our reference to the input object and - * point to the object just retrieved - */ - acpi_ut_remove_reference(operand[0]); - operand[0] = temp_desc; - break; - - case ACPI_REFCLASS_REFOF: - - /* Get the object to which the reference refers */ - - temp_desc = - operand[0]->reference.object; - acpi_ut_remove_reference(operand[0]); - operand[0] = temp_desc; - break; - - default: - - /* Must be an Index op - handled below */ - break; - } - break; - - case ACPI_TYPE_STRING: - break; - - default: - status = AE_AML_OPERAND_TYPE; - goto cleanup; - } - } - - if (ACPI_GET_DESCRIPTOR_TYPE(operand[0]) != - ACPI_DESC_TYPE_NAMED) { - if (ACPI_GET_OBJECT_TYPE(operand[0]) == - ACPI_TYPE_STRING) { - /* - * This is a deref_of (String). The string is a reference - * to a named ACPI object. - * - * 1) Find the owning Node - * 2) Dereference the node to an actual object. Could be a - * Field, so we need to resolve the node to a value. - */ - status = - acpi_ns_get_node(walk_state->scope_info-> - scope.node, - operand[0]->string.pointer, - ACPI_NS_SEARCH_PARENT, - ACPI_CAST_INDIRECT_PTR - (struct - acpi_namespace_node, - &return_desc)); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - status = - acpi_ex_resolve_node_to_value - (ACPI_CAST_INDIRECT_PTR - (struct acpi_namespace_node, &return_desc), - walk_state); - goto cleanup; - } - } - - /* Operand[0] may have changed from the code above */ - - if (ACPI_GET_DESCRIPTOR_TYPE(operand[0]) == - ACPI_DESC_TYPE_NAMED) { - /* - * This is a deref_of (object_reference) - * Get the actual object from the Node (This is the dereference). - * This case may only happen when a local_x or arg_x is - * dereferenced above. - */ - return_desc = acpi_ns_get_attached_object((struct - acpi_namespace_node - *) - operand[0]); - acpi_ut_add_reference(return_desc); - } else { - /* - * This must be a reference object produced by either the - * Index() or ref_of() operator - */ - switch (operand[0]->reference.class) { - case ACPI_REFCLASS_INDEX: - - /* - * The target type for the Index operator must be - * either a Buffer or a Package - */ - switch (operand[0]->reference.target_type) { - case ACPI_TYPE_BUFFER_FIELD: - - temp_desc = - operand[0]->reference.object; - - /* - * Create a new object that contains one element of the - * buffer -- the element pointed to by the index. - * - * NOTE: index into a buffer is NOT a pointer to a - * sub-buffer of the main buffer, it is only a pointer to a - * single element (byte) of the buffer! - */ - return_desc = - acpi_ut_create_internal_object - (ACPI_TYPE_INTEGER); - if (!return_desc) { - status = AE_NO_MEMORY; - goto cleanup; - } - - /* - * Since we are returning the value of the buffer at the - * indexed location, we don't need to add an additional - * reference to the buffer itself. - */ - return_desc->integer.value = - temp_desc->buffer. - pointer[operand[0]->reference. - value]; - break; - - case ACPI_TYPE_PACKAGE: - - /* - * Return the referenced element of the package. We must - * add another reference to the referenced object, however. - */ - return_desc = - *(operand[0]->reference.where); - if (return_desc) { - acpi_ut_add_reference - (return_desc); - } - break; - - default: - - ACPI_ERROR((AE_INFO, - "Unknown Index TargetType %X in reference object %p", - operand[0]->reference. - target_type, operand[0])); - status = AE_AML_OPERAND_TYPE; - goto cleanup; - } - break; - - case ACPI_REFCLASS_REFOF: - - return_desc = operand[0]->reference.object; - - if (ACPI_GET_DESCRIPTOR_TYPE(return_desc) == - ACPI_DESC_TYPE_NAMED) { - return_desc = - acpi_ns_get_attached_object((struct - acpi_namespace_node - *) - return_desc); - } - - /* Add another reference to the object! */ - - acpi_ut_add_reference(return_desc); - break; - - default: - ACPI_ERROR((AE_INFO, - "Unknown class in reference(%p) - %2.2X", - operand[0], - operand[0]->reference.class)); - - status = AE_TYPE; - goto cleanup; - } - } - break; - - default: - - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", - walk_state->opcode)); - status = AE_AML_BAD_OPCODE; - goto cleanup; - } - - cleanup: - - /* Delete return object on error */ - - if (ACPI_FAILURE(status)) { - acpi_ut_remove_reference(return_desc); - } - - /* Save return object on success */ - - else { - walk_state->result_obj = return_desc; - } - - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/executer/exoparg2.c b/drivers/acpi/executer/exoparg2.c deleted file mode 100644 index b01980df1365..000000000000 --- a/drivers/acpi/executer/exoparg2.c +++ /dev/null @@ -1,605 +0,0 @@ -/****************************************************************************** - * - * Module Name: exoparg2 - AML execution - opcodes with 2 arguments - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_EXECUTER -ACPI_MODULE_NAME("exoparg2") - -/*! - * Naming convention for AML interpreter execution routines. - * - * The routines that begin execution of AML opcodes are named with a common - * convention based upon the number of arguments, the number of target operands, - * and whether or not a value is returned: - * - * AcpiExOpcode_xA_yT_zR - * - * Where: - * - * xA - ARGUMENTS: The number of arguments (input operands) that are - * required for this opcode type (1 through 6 args). - * yT - TARGETS: The number of targets (output operands) that are required - * for this opcode type (0, 1, or 2 targets). - * zR - RETURN VALUE: Indicates whether this opcode type returns a value - * as the function return (0 or 1). - * - * The AcpiExOpcode* functions are called via the Dispatcher component with - * fully resolved operands. -!*/ -/******************************************************************************* - * - * FUNCTION: acpi_ex_opcode_2A_0T_0R - * - * PARAMETERS: walk_state - Current walk state - * - * RETURN: Status - * - * DESCRIPTION: Execute opcode with two arguments, no target, and no return - * value. - * - * ALLOCATION: Deletes both operands - * - ******************************************************************************/ -acpi_status acpi_ex_opcode_2A_0T_0R(struct acpi_walk_state *walk_state) -{ - union acpi_operand_object **operand = &walk_state->operands[0]; - struct acpi_namespace_node *node; - u32 value; - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_0T_0R, - acpi_ps_get_opcode_name(walk_state->opcode)); - - /* Examine the opcode */ - - switch (walk_state->opcode) { - case AML_NOTIFY_OP: /* Notify (notify_object, notify_value) */ - - /* The first operand is a namespace node */ - - node = (struct acpi_namespace_node *)operand[0]; - - /* Second value is the notify value */ - - value = (u32) operand[1]->integer.value; - - /* Are notifies allowed on this object? */ - - if (!acpi_ev_is_notify_object(node)) { - ACPI_ERROR((AE_INFO, - "Unexpected notify object type [%s]", - acpi_ut_get_type_name(node->type))); - - status = AE_AML_OPERAND_TYPE; - break; - } -#ifdef ACPI_GPE_NOTIFY_CHECK - /* - * GPE method wake/notify check. Here, we want to ensure that we - * don't receive any "DeviceWake" Notifies from a GPE _Lxx or _Exx - * GPE method during system runtime. If we do, the GPE is marked - * as "wake-only" and disabled. - * - * 1) Is the Notify() value == device_wake? - * 2) Is this a GPE deferred method? (An _Lxx or _Exx method) - * 3) Did the original GPE happen at system runtime? - * (versus during wake) - * - * If all three cases are true, this is a wake-only GPE that should - * be disabled at runtime. - */ - if (value == 2) { /* device_wake */ - status = - acpi_ev_check_for_wake_only_gpe(walk_state-> - gpe_event_info); - if (ACPI_FAILURE(status)) { - - /* AE_WAKE_ONLY_GPE only error, means ignore this notify */ - - return_ACPI_STATUS(AE_OK) - } - } -#endif - - /* - * Dispatch the notify to the appropriate handler - * NOTE: the request is queued for execution after this method - * completes. The notify handlers are NOT invoked synchronously - * from this thread -- because handlers may in turn run other - * control methods. - */ - status = acpi_ev_queue_notify_request(node, value); - break; - - default: - - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", - walk_state->opcode)); - status = AE_AML_BAD_OPCODE; - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_opcode_2A_2T_1R - * - * PARAMETERS: walk_state - Current walk state - * - * RETURN: Status - * - * DESCRIPTION: Execute a dyadic operator (2 operands) with 2 output targets - * and one implicit return value. - * - ******************************************************************************/ - -acpi_status acpi_ex_opcode_2A_2T_1R(struct acpi_walk_state *walk_state) -{ - union acpi_operand_object **operand = &walk_state->operands[0]; - union acpi_operand_object *return_desc1 = NULL; - union acpi_operand_object *return_desc2 = NULL; - acpi_status status; - - ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_2T_1R, - acpi_ps_get_opcode_name(walk_state->opcode)); - - /* Execute the opcode */ - - switch (walk_state->opcode) { - case AML_DIVIDE_OP: - - /* Divide (Dividend, Divisor, remainder_result quotient_result) */ - - return_desc1 = - acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); - if (!return_desc1) { - status = AE_NO_MEMORY; - goto cleanup; - } - - return_desc2 = - acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); - if (!return_desc2) { - status = AE_NO_MEMORY; - goto cleanup; - } - - /* Quotient to return_desc1, remainder to return_desc2 */ - - status = acpi_ut_divide(operand[0]->integer.value, - operand[1]->integer.value, - &return_desc1->integer.value, - &return_desc2->integer.value); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - break; - - default: - - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", - walk_state->opcode)); - status = AE_AML_BAD_OPCODE; - goto cleanup; - } - - /* Store the results to the target reference operands */ - - status = acpi_ex_store(return_desc2, operand[2], walk_state); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - status = acpi_ex_store(return_desc1, operand[3], walk_state); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - cleanup: - /* - * Since the remainder is not returned indirectly, remove a reference to - * it. Only the quotient is returned indirectly. - */ - acpi_ut_remove_reference(return_desc2); - - if (ACPI_FAILURE(status)) { - - /* Delete the return object */ - - acpi_ut_remove_reference(return_desc1); - } - - /* Save return object (the remainder) on success */ - - else { - walk_state->result_obj = return_desc1; - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_opcode_2A_1T_1R - * - * PARAMETERS: walk_state - Current walk state - * - * RETURN: Status - * - * DESCRIPTION: Execute opcode with two arguments, one target, and a return - * value. - * - ******************************************************************************/ - -acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state) -{ - union acpi_operand_object **operand = &walk_state->operands[0]; - union acpi_operand_object *return_desc = NULL; - acpi_integer index; - acpi_status status = AE_OK; - acpi_size length; - - ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_1T_1R, - acpi_ps_get_opcode_name(walk_state->opcode)); - - /* Execute the opcode */ - - if (walk_state->op_info->flags & AML_MATH) { - - /* All simple math opcodes (add, etc.) */ - - return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); - if (!return_desc) { - status = AE_NO_MEMORY; - goto cleanup; - } - - return_desc->integer.value = - acpi_ex_do_math_op(walk_state->opcode, - operand[0]->integer.value, - operand[1]->integer.value); - goto store_result_to_target; - } - - switch (walk_state->opcode) { - case AML_MOD_OP: /* Mod (Dividend, Divisor, remainder_result (ACPI 2.0) */ - - return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); - if (!return_desc) { - status = AE_NO_MEMORY; - goto cleanup; - } - - /* return_desc will contain the remainder */ - - status = acpi_ut_divide(operand[0]->integer.value, - operand[1]->integer.value, - NULL, &return_desc->integer.value); - break; - - case AML_CONCAT_OP: /* Concatenate (Data1, Data2, Result) */ - - status = acpi_ex_do_concatenate(operand[0], operand[1], - &return_desc, walk_state); - break; - - case AML_TO_STRING_OP: /* to_string (Buffer, Length, Result) (ACPI 2.0) */ - - /* - * Input object is guaranteed to be a buffer at this point (it may have - * been converted.) Copy the raw buffer data to a new object of - * type String. - */ - - /* - * Get the length of the new string. It is the smallest of: - * 1) Length of the input buffer - * 2) Max length as specified in the to_string operator - * 3) Length of input buffer up to a zero byte (null terminator) - * - * NOTE: A length of zero is ok, and will create a zero-length, null - * terminated string. - */ - length = 0; - while ((length < operand[0]->buffer.length) && - (length < operand[1]->integer.value) && - (operand[0]->buffer.pointer[length])) { - length++; - } - - /* Allocate a new string object */ - - return_desc = acpi_ut_create_string_object(length); - if (!return_desc) { - status = AE_NO_MEMORY; - goto cleanup; - } - - /* - * Copy the raw buffer data with no transform. - * (NULL terminated already) - */ - ACPI_MEMCPY(return_desc->string.pointer, - operand[0]->buffer.pointer, length); - break; - - case AML_CONCAT_RES_OP: - - /* concatenate_res_template (Buffer, Buffer, Result) (ACPI 2.0) */ - - status = acpi_ex_concat_template(operand[0], operand[1], - &return_desc, walk_state); - break; - - case AML_INDEX_OP: /* Index (Source Index Result) */ - - /* Create the internal return object */ - - return_desc = - acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_REFERENCE); - if (!return_desc) { - status = AE_NO_MEMORY; - goto cleanup; - } - - /* Initialize the Index reference object */ - - index = operand[1]->integer.value; - return_desc->reference.value = (u32) index; - return_desc->reference.class = ACPI_REFCLASS_INDEX; - - /* - * At this point, the Source operand is a String, Buffer, or Package. - * Verify that the index is within range. - */ - switch (ACPI_GET_OBJECT_TYPE(operand[0])) { - case ACPI_TYPE_STRING: - - if (index >= operand[0]->string.length) { - status = AE_AML_STRING_LIMIT; - } - - return_desc->reference.target_type = - ACPI_TYPE_BUFFER_FIELD; - break; - - case ACPI_TYPE_BUFFER: - - if (index >= operand[0]->buffer.length) { - status = AE_AML_BUFFER_LIMIT; - } - - return_desc->reference.target_type = - ACPI_TYPE_BUFFER_FIELD; - break; - - case ACPI_TYPE_PACKAGE: - - if (index >= operand[0]->package.count) { - status = AE_AML_PACKAGE_LIMIT; - } - - return_desc->reference.target_type = ACPI_TYPE_PACKAGE; - return_desc->reference.where = - &operand[0]->package.elements[index]; - break; - - default: - - status = AE_AML_INTERNAL; - goto cleanup; - } - - /* Failure means that the Index was beyond the end of the object */ - - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "Index (%X%8.8X) is beyond end of object", - ACPI_FORMAT_UINT64(index))); - goto cleanup; - } - - /* - * Save the target object and add a reference to it for the life - * of the index - */ - return_desc->reference.object = operand[0]; - acpi_ut_add_reference(operand[0]); - - /* Store the reference to the Target */ - - status = acpi_ex_store(return_desc, operand[2], walk_state); - - /* Return the reference */ - - walk_state->result_obj = return_desc; - goto cleanup; - - default: - - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", - walk_state->opcode)); - status = AE_AML_BAD_OPCODE; - break; - } - - store_result_to_target: - - if (ACPI_SUCCESS(status)) { - /* - * Store the result of the operation (which is now in return_desc) into - * the Target descriptor. - */ - status = acpi_ex_store(return_desc, operand[2], walk_state); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - if (!walk_state->result_obj) { - walk_state->result_obj = return_desc; - } - } - - cleanup: - - /* Delete return object on error */ - - if (ACPI_FAILURE(status)) { - acpi_ut_remove_reference(return_desc); - walk_state->result_obj = NULL; - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_opcode_2A_0T_1R - * - * PARAMETERS: walk_state - Current walk state - * - * RETURN: Status - * - * DESCRIPTION: Execute opcode with 2 arguments, no target, and a return value - * - ******************************************************************************/ - -acpi_status acpi_ex_opcode_2A_0T_1R(struct acpi_walk_state *walk_state) -{ - union acpi_operand_object **operand = &walk_state->operands[0]; - union acpi_operand_object *return_desc = NULL; - acpi_status status = AE_OK; - u8 logical_result = FALSE; - - ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_0T_1R, - acpi_ps_get_opcode_name(walk_state->opcode)); - - /* Create the internal return object */ - - return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); - if (!return_desc) { - status = AE_NO_MEMORY; - goto cleanup; - } - - /* Execute the Opcode */ - - if (walk_state->op_info->flags & AML_LOGICAL_NUMERIC) { - - /* logical_op (Operand0, Operand1) */ - - status = acpi_ex_do_logical_numeric_op(walk_state->opcode, - operand[0]->integer. - value, - operand[1]->integer. - value, &logical_result); - goto store_logical_result; - } else if (walk_state->op_info->flags & AML_LOGICAL) { - - /* logical_op (Operand0, Operand1) */ - - status = acpi_ex_do_logical_op(walk_state->opcode, operand[0], - operand[1], &logical_result); - goto store_logical_result; - } - - switch (walk_state->opcode) { - case AML_ACQUIRE_OP: /* Acquire (mutex_object, Timeout) */ - - status = - acpi_ex_acquire_mutex(operand[1], operand[0], walk_state); - if (status == AE_TIME) { - logical_result = TRUE; /* TRUE = Acquire timed out */ - status = AE_OK; - } - break; - - case AML_WAIT_OP: /* Wait (event_object, Timeout) */ - - status = acpi_ex_system_wait_event(operand[1], operand[0]); - if (status == AE_TIME) { - logical_result = TRUE; /* TRUE, Wait timed out */ - status = AE_OK; - } - break; - - default: - - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", - walk_state->opcode)); - status = AE_AML_BAD_OPCODE; - goto cleanup; - } - - store_logical_result: - /* - * Set return value to according to logical_result. logical TRUE (all ones) - * Default is FALSE (zero) - */ - if (logical_result) { - return_desc->integer.value = ACPI_INTEGER_MAX; - } - - cleanup: - - /* Delete return object on error */ - - if (ACPI_FAILURE(status)) { - acpi_ut_remove_reference(return_desc); - } - - /* Save return object on success */ - - else { - walk_state->result_obj = return_desc; - } - - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/executer/exoparg3.c b/drivers/acpi/executer/exoparg3.c deleted file mode 100644 index 26dbd5c2c1da..000000000000 --- a/drivers/acpi/executer/exoparg3.c +++ /dev/null @@ -1,273 +0,0 @@ - -/****************************************************************************** - * - * Module Name: exoparg3 - AML execution - opcodes with 3 arguments - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_EXECUTER -ACPI_MODULE_NAME("exoparg3") - -/*! - * Naming convention for AML interpreter execution routines. - * - * The routines that begin execution of AML opcodes are named with a common - * convention based upon the number of arguments, the number of target operands, - * and whether or not a value is returned: - * - * AcpiExOpcode_xA_yT_zR - * - * Where: - * - * xA - ARGUMENTS: The number of arguments (input operands) that are - * required for this opcode type (1 through 6 args). - * yT - TARGETS: The number of targets (output operands) that are required - * for this opcode type (0, 1, or 2 targets). - * zR - RETURN VALUE: Indicates whether this opcode type returns a value - * as the function return (0 or 1). - * - * The AcpiExOpcode* functions are called via the Dispatcher component with - * fully resolved operands. -!*/ -/******************************************************************************* - * - * FUNCTION: acpi_ex_opcode_3A_0T_0R - * - * PARAMETERS: walk_state - Current walk state - * - * RETURN: Status - * - * DESCRIPTION: Execute Triadic operator (3 operands) - * - ******************************************************************************/ -acpi_status acpi_ex_opcode_3A_0T_0R(struct acpi_walk_state *walk_state) -{ - union acpi_operand_object **operand = &walk_state->operands[0]; - struct acpi_signal_fatal_info *fatal; - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE_STR(ex_opcode_3A_0T_0R, - acpi_ps_get_opcode_name(walk_state->opcode)); - - switch (walk_state->opcode) { - case AML_FATAL_OP: /* Fatal (fatal_type fatal_code fatal_arg) */ - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "FatalOp: Type %X Code %X Arg %X <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<\n", - (u32) operand[0]->integer.value, - (u32) operand[1]->integer.value, - (u32) operand[2]->integer.value)); - - fatal = ACPI_ALLOCATE(sizeof(struct acpi_signal_fatal_info)); - if (fatal) { - fatal->type = (u32) operand[0]->integer.value; - fatal->code = (u32) operand[1]->integer.value; - fatal->argument = (u32) operand[2]->integer.value; - } - - /* Always signal the OS! */ - - status = acpi_os_signal(ACPI_SIGNAL_FATAL, fatal); - - /* Might return while OS is shutting down, just continue */ - - ACPI_FREE(fatal); - break; - - default: - - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", - walk_state->opcode)); - status = AE_AML_BAD_OPCODE; - goto cleanup; - } - - cleanup: - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_opcode_3A_1T_1R - * - * PARAMETERS: walk_state - Current walk state - * - * RETURN: Status - * - * DESCRIPTION: Execute Triadic operator (3 operands) - * - ******************************************************************************/ - -acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state) -{ - union acpi_operand_object **operand = &walk_state->operands[0]; - union acpi_operand_object *return_desc = NULL; - char *buffer = NULL; - acpi_status status = AE_OK; - acpi_integer index; - acpi_size length; - - ACPI_FUNCTION_TRACE_STR(ex_opcode_3A_1T_1R, - acpi_ps_get_opcode_name(walk_state->opcode)); - - switch (walk_state->opcode) { - case AML_MID_OP: /* Mid (Source[0], Index[1], Length[2], Result[3]) */ - - /* - * Create the return object. The Source operand is guaranteed to be - * either a String or a Buffer, so just use its type. - */ - return_desc = - acpi_ut_create_internal_object(ACPI_GET_OBJECT_TYPE - (operand[0])); - if (!return_desc) { - status = AE_NO_MEMORY; - goto cleanup; - } - - /* Get the Integer values from the objects */ - - index = operand[1]->integer.value; - length = (acpi_size) operand[2]->integer.value; - - /* - * If the index is beyond the length of the String/Buffer, or if the - * requested length is zero, return a zero-length String/Buffer - */ - if (index >= operand[0]->string.length) { - length = 0; - } - - /* Truncate request if larger than the actual String/Buffer */ - - else if ((index + length) > operand[0]->string.length) { - length = (acpi_size) operand[0]->string.length - - (acpi_size) index; - } - - /* Strings always have a sub-pointer, not so for buffers */ - - switch (ACPI_GET_OBJECT_TYPE(operand[0])) { - case ACPI_TYPE_STRING: - - /* Always allocate a new buffer for the String */ - - buffer = ACPI_ALLOCATE_ZEROED((acpi_size) length + 1); - if (!buffer) { - status = AE_NO_MEMORY; - goto cleanup; - } - break; - - case ACPI_TYPE_BUFFER: - - /* If the requested length is zero, don't allocate a buffer */ - - if (length > 0) { - - /* Allocate a new buffer for the Buffer */ - - buffer = ACPI_ALLOCATE_ZEROED(length); - if (!buffer) { - status = AE_NO_MEMORY; - goto cleanup; - } - } - break; - - default: /* Should not happen */ - - status = AE_AML_OPERAND_TYPE; - goto cleanup; - } - - if (buffer) { - - /* We have a buffer, copy the portion requested */ - - ACPI_MEMCPY(buffer, operand[0]->string.pointer + index, - length); - } - - /* Set the length of the new String/Buffer */ - - return_desc->string.pointer = buffer; - return_desc->string.length = (u32) length; - - /* Mark buffer initialized */ - - return_desc->buffer.flags |= AOPOBJ_DATA_VALID; - break; - - default: - - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", - walk_state->opcode)); - status = AE_AML_BAD_OPCODE; - goto cleanup; - } - - /* Store the result in the target */ - - status = acpi_ex_store(return_desc, operand[3], walk_state); - - cleanup: - - /* Delete return object on error */ - - if (ACPI_FAILURE(status) || walk_state->result_obj) { - acpi_ut_remove_reference(return_desc); - walk_state->result_obj = NULL; - } - - /* Set the return object and exit */ - - else { - walk_state->result_obj = return_desc; - } - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/executer/exoparg6.c b/drivers/acpi/executer/exoparg6.c deleted file mode 100644 index bbbba504979f..000000000000 --- a/drivers/acpi/executer/exoparg6.c +++ /dev/null @@ -1,341 +0,0 @@ - -/****************************************************************************** - * - * Module Name: exoparg6 - AML execution - opcodes with 6 arguments - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_EXECUTER -ACPI_MODULE_NAME("exoparg6") - -/*! - * Naming convention for AML interpreter execution routines. - * - * The routines that begin execution of AML opcodes are named with a common - * convention based upon the number of arguments, the number of target operands, - * and whether or not a value is returned: - * - * AcpiExOpcode_xA_yT_zR - * - * Where: - * - * xA - ARGUMENTS: The number of arguments (input operands) that are - * required for this opcode type (1 through 6 args). - * yT - TARGETS: The number of targets (output operands) that are required - * for this opcode type (0, 1, or 2 targets). - * zR - RETURN VALUE: Indicates whether this opcode type returns a value - * as the function return (0 or 1). - * - * The AcpiExOpcode* functions are called via the Dispatcher component with - * fully resolved operands. -!*/ -/* Local prototypes */ -static u8 -acpi_ex_do_match(u32 match_op, - union acpi_operand_object *package_obj, - union acpi_operand_object *match_obj); - -/******************************************************************************* - * - * FUNCTION: acpi_ex_do_match - * - * PARAMETERS: match_op - The AML match operand - * package_obj - Object from the target package - * match_obj - Object to be matched - * - * RETURN: TRUE if the match is successful, FALSE otherwise - * - * DESCRIPTION: Implements the low-level match for the ASL Match operator. - * Package elements will be implicitly converted to the type of - * the match object (Integer/Buffer/String). - * - ******************************************************************************/ - -static u8 -acpi_ex_do_match(u32 match_op, - union acpi_operand_object *package_obj, - union acpi_operand_object *match_obj) -{ - u8 logical_result = TRUE; - acpi_status status; - - /* - * Note: Since the package_obj/match_obj ordering is opposite to that of - * the standard logical operators, we have to reverse them when we call - * do_logical_op in order to make the implicit conversion rules work - * correctly. However, this means we have to flip the entire equation - * also. A bit ugly perhaps, but overall, better than fussing the - * parameters around at runtime, over and over again. - * - * Below, P[i] refers to the package element, M refers to the Match object. - */ - switch (match_op) { - case MATCH_MTR: - - /* Always true */ - - break; - - case MATCH_MEQ: - - /* - * True if equal: (P[i] == M) - * Change to: (M == P[i]) - */ - status = - acpi_ex_do_logical_op(AML_LEQUAL_OP, match_obj, package_obj, - &logical_result); - if (ACPI_FAILURE(status)) { - return (FALSE); - } - break; - - case MATCH_MLE: - - /* - * True if less than or equal: (P[i] <= M) (P[i] not_greater than M) - * Change to: (M >= P[i]) (M not_less than P[i]) - */ - status = - acpi_ex_do_logical_op(AML_LLESS_OP, match_obj, package_obj, - &logical_result); - if (ACPI_FAILURE(status)) { - return (FALSE); - } - logical_result = (u8) ! logical_result; - break; - - case MATCH_MLT: - - /* - * True if less than: (P[i] < M) - * Change to: (M > P[i]) - */ - status = - acpi_ex_do_logical_op(AML_LGREATER_OP, match_obj, - package_obj, &logical_result); - if (ACPI_FAILURE(status)) { - return (FALSE); - } - break; - - case MATCH_MGE: - - /* - * True if greater than or equal: (P[i] >= M) (P[i] not_less than M) - * Change to: (M <= P[i]) (M not_greater than P[i]) - */ - status = - acpi_ex_do_logical_op(AML_LGREATER_OP, match_obj, - package_obj, &logical_result); - if (ACPI_FAILURE(status)) { - return (FALSE); - } - logical_result = (u8) ! logical_result; - break; - - case MATCH_MGT: - - /* - * True if greater than: (P[i] > M) - * Change to: (M < P[i]) - */ - status = - acpi_ex_do_logical_op(AML_LLESS_OP, match_obj, package_obj, - &logical_result); - if (ACPI_FAILURE(status)) { - return (FALSE); - } - break; - - default: - - /* Undefined */ - - return (FALSE); - } - - return logical_result; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_opcode_6A_0T_1R - * - * PARAMETERS: walk_state - Current walk state - * - * RETURN: Status - * - * DESCRIPTION: Execute opcode with 6 arguments, no target, and a return value - * - ******************************************************************************/ - -acpi_status acpi_ex_opcode_6A_0T_1R(struct acpi_walk_state * walk_state) -{ - union acpi_operand_object **operand = &walk_state->operands[0]; - union acpi_operand_object *return_desc = NULL; - acpi_status status = AE_OK; - acpi_integer index; - union acpi_operand_object *this_element; - - ACPI_FUNCTION_TRACE_STR(ex_opcode_6A_0T_1R, - acpi_ps_get_opcode_name(walk_state->opcode)); - - switch (walk_state->opcode) { - case AML_MATCH_OP: - /* - * Match (search_pkg[0], match_op1[1], match_obj1[2], - * match_op2[3], match_obj2[4], start_index[5]) - */ - - /* Validate both Match Term Operators (MTR, MEQ, etc.) */ - - if ((operand[1]->integer.value > MAX_MATCH_OPERATOR) || - (operand[3]->integer.value > MAX_MATCH_OPERATOR)) { - ACPI_ERROR((AE_INFO, "Match operator out of range")); - status = AE_AML_OPERAND_VALUE; - goto cleanup; - } - - /* Get the package start_index, validate against the package length */ - - index = operand[5]->integer.value; - if (index >= operand[0]->package.count) { - ACPI_ERROR((AE_INFO, - "Index (%X%8.8X) beyond package end (%X)", - ACPI_FORMAT_UINT64(index), - operand[0]->package.count)); - status = AE_AML_PACKAGE_LIMIT; - goto cleanup; - } - - /* Create an integer for the return value */ - - return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); - if (!return_desc) { - status = AE_NO_MEMORY; - goto cleanup; - - } - - /* Default return value if no match found */ - - return_desc->integer.value = ACPI_INTEGER_MAX; - - /* - * Examine each element until a match is found. Both match conditions - * must be satisfied for a match to occur. Within the loop, - * "continue" signifies that the current element does not match - * and the next should be examined. - * - * Upon finding a match, the loop will terminate via "break" at - * the bottom. If it terminates "normally", match_value will be - * ACPI_INTEGER_MAX (Ones) (its initial value) indicating that no - * match was found. - */ - for (; index < operand[0]->package.count; index++) { - - /* Get the current package element */ - - this_element = operand[0]->package.elements[index]; - - /* Treat any uninitialized (NULL) elements as non-matching */ - - if (!this_element) { - continue; - } - - /* - * Both match conditions must be satisfied. Execution of a continue - * (proceed to next iteration of enclosing for loop) signifies a - * non-match. - */ - if (!acpi_ex_do_match((u32) operand[1]->integer.value, - this_element, operand[2])) { - continue; - } - - if (!acpi_ex_do_match((u32) operand[3]->integer.value, - this_element, operand[4])) { - continue; - } - - /* Match found: Index is the return value */ - - return_desc->integer.value = index; - break; - } - break; - - case AML_LOAD_TABLE_OP: - - status = acpi_ex_load_table_op(walk_state, &return_desc); - break; - - default: - - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", - walk_state->opcode)); - status = AE_AML_BAD_OPCODE; - goto cleanup; - } - - cleanup: - - /* Delete return object on error */ - - if (ACPI_FAILURE(status)) { - acpi_ut_remove_reference(return_desc); - } - - /* Save return object on success */ - - else { - walk_state->result_obj = return_desc; - } - - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/executer/exprep.c b/drivers/acpi/executer/exprep.c deleted file mode 100644 index 8f2baa934e95..000000000000 --- a/drivers/acpi/executer/exprep.c +++ /dev/null @@ -1,590 +0,0 @@ - -/****************************************************************************** - * - * Module Name: exprep - ACPI AML (p-code) execution - field prep utilities - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_EXECUTER -ACPI_MODULE_NAME("exprep") - -/* Local prototypes */ -static u32 -acpi_ex_decode_field_access(union acpi_operand_object *obj_desc, - u8 field_flags, u32 * return_byte_alignment); - -#ifdef ACPI_UNDER_DEVELOPMENT - -static u32 -acpi_ex_generate_access(u32 field_bit_offset, - u32 field_bit_length, u32 region_length); - -/******************************************************************************* - * - * FUNCTION: acpi_ex_generate_access - * - * PARAMETERS: field_bit_offset - Start of field within parent region/buffer - * field_bit_length - Length of field in bits - * region_length - Length of parent in bytes - * - * RETURN: Field granularity (8, 16, 32 or 64) and - * byte_alignment (1, 2, 3, or 4) - * - * DESCRIPTION: Generate an optimal access width for fields defined with the - * any_acc keyword. - * - * NOTE: Need to have the region_length in order to check for boundary - * conditions (end-of-region). However, the region_length is a deferred - * operation. Therefore, to complete this implementation, the generation - * of this access width must be deferred until the region length has - * been evaluated. - * - ******************************************************************************/ - -static u32 -acpi_ex_generate_access(u32 field_bit_offset, - u32 field_bit_length, u32 region_length) -{ - u32 field_byte_length; - u32 field_byte_offset; - u32 field_byte_end_offset; - u32 access_byte_width; - u32 field_start_offset; - u32 field_end_offset; - u32 minimum_access_width = 0xFFFFFFFF; - u32 minimum_accesses = 0xFFFFFFFF; - u32 accesses; - - ACPI_FUNCTION_TRACE(ex_generate_access); - - /* Round Field start offset and length to "minimal" byte boundaries */ - - field_byte_offset = ACPI_DIV_8(ACPI_ROUND_DOWN(field_bit_offset, 8)); - field_byte_end_offset = ACPI_DIV_8(ACPI_ROUND_UP(field_bit_length + - field_bit_offset, 8)); - field_byte_length = field_byte_end_offset - field_byte_offset; - - ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "Bit length %d, Bit offset %d\n", - field_bit_length, field_bit_offset)); - - ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "Byte Length %d, Byte Offset %d, End Offset %d\n", - field_byte_length, field_byte_offset, - field_byte_end_offset)); - - /* - * Iterative search for the maximum access width that is both aligned - * and does not go beyond the end of the region - * - * Start at byte_acc and work upwards to qword_acc max. (1,2,4,8 bytes) - */ - for (access_byte_width = 1; access_byte_width <= 8; - access_byte_width <<= 1) { - /* - * 1) Round end offset up to next access boundary and make sure that - * this does not go beyond the end of the parent region. - * 2) When the Access width is greater than the field_byte_length, we - * are done. (This does not optimize for the perfectly aligned - * case yet). - */ - if (ACPI_ROUND_UP(field_byte_end_offset, access_byte_width) <= - region_length) { - field_start_offset = - ACPI_ROUND_DOWN(field_byte_offset, - access_byte_width) / - access_byte_width; - - field_end_offset = - ACPI_ROUND_UP((field_byte_length + - field_byte_offset), - access_byte_width) / - access_byte_width; - - accesses = field_end_offset - field_start_offset; - - ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "AccessWidth %d end is within region\n", - access_byte_width)); - - ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "Field Start %d, Field End %d -- requires %d accesses\n", - field_start_offset, field_end_offset, - accesses)); - - /* Single access is optimal */ - - if (accesses <= 1) { - ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "Entire field can be accessed with one operation of size %d\n", - access_byte_width)); - return_VALUE(access_byte_width); - } - - /* - * Fits in the region, but requires more than one read/write. - * try the next wider access on next iteration - */ - if (accesses < minimum_accesses) { - minimum_accesses = accesses; - minimum_access_width = access_byte_width; - } - } else { - ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "AccessWidth %d end is NOT within region\n", - access_byte_width)); - if (access_byte_width == 1) { - ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "Field goes beyond end-of-region!\n")); - - /* Field does not fit in the region at all */ - - return_VALUE(0); - } - - /* - * This width goes beyond the end-of-region, back off to - * previous access - */ - ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "Backing off to previous optimal access width of %d\n", - minimum_access_width)); - return_VALUE(minimum_access_width); - } - } - - /* - * Could not read/write field with one operation, - * just use max access width - */ - ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "Cannot access field in one operation, using width 8\n")); - return_VALUE(8); -} -#endif /* ACPI_UNDER_DEVELOPMENT */ - -/******************************************************************************* - * - * FUNCTION: acpi_ex_decode_field_access - * - * PARAMETERS: obj_desc - Field object - * field_flags - Encoded fieldflags (contains access bits) - * return_byte_alignment - Where the byte alignment is returned - * - * RETURN: Field granularity (8, 16, 32 or 64) and - * byte_alignment (1, 2, 3, or 4) - * - * DESCRIPTION: Decode the access_type bits of a field definition. - * - ******************************************************************************/ - -static u32 -acpi_ex_decode_field_access(union acpi_operand_object *obj_desc, - u8 field_flags, u32 * return_byte_alignment) -{ - u32 access; - u32 byte_alignment; - u32 bit_length; - - ACPI_FUNCTION_TRACE(ex_decode_field_access); - - access = (field_flags & AML_FIELD_ACCESS_TYPE_MASK); - - switch (access) { - case AML_FIELD_ACCESS_ANY: - -#ifdef ACPI_UNDER_DEVELOPMENT - byte_alignment = - acpi_ex_generate_access(obj_desc->common_field. - start_field_bit_offset, - obj_desc->common_field.bit_length, - 0xFFFFFFFF - /* Temp until we pass region_length as parameter */ - ); - bit_length = byte_alignment * 8; -#endif - - byte_alignment = 1; - bit_length = 8; - break; - - case AML_FIELD_ACCESS_BYTE: - case AML_FIELD_ACCESS_BUFFER: /* ACPI 2.0 (SMBus Buffer) */ - byte_alignment = 1; - bit_length = 8; - break; - - case AML_FIELD_ACCESS_WORD: - byte_alignment = 2; - bit_length = 16; - break; - - case AML_FIELD_ACCESS_DWORD: - byte_alignment = 4; - bit_length = 32; - break; - - case AML_FIELD_ACCESS_QWORD: /* ACPI 2.0 */ - byte_alignment = 8; - bit_length = 64; - break; - - default: - /* Invalid field access type */ - - ACPI_ERROR((AE_INFO, "Unknown field access type %X", access)); - return_UINT32(0); - } - - if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_BUFFER_FIELD) { - /* - * buffer_field access can be on any byte boundary, so the - * byte_alignment is always 1 byte -- regardless of any byte_alignment - * implied by the field access type. - */ - byte_alignment = 1; - } - - *return_byte_alignment = byte_alignment; - return_UINT32(bit_length); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_prep_common_field_object - * - * PARAMETERS: obj_desc - The field object - * field_flags - Access, lock_rule, and update_rule. - * The format of a field_flag is described - * in the ACPI specification - * field_attribute - Special attributes (not used) - * field_bit_position - Field start position - * field_bit_length - Field length in number of bits - * - * RETURN: Status - * - * DESCRIPTION: Initialize the areas of the field object that are common - * to the various types of fields. Note: This is very "sensitive" - * code because we are solving the general case for field - * alignment. - * - ******************************************************************************/ - -acpi_status -acpi_ex_prep_common_field_object(union acpi_operand_object *obj_desc, - u8 field_flags, - u8 field_attribute, - u32 field_bit_position, u32 field_bit_length) -{ - u32 access_bit_width; - u32 byte_alignment; - u32 nearest_byte_address; - - ACPI_FUNCTION_TRACE(ex_prep_common_field_object); - - /* - * Note: the structure being initialized is the - * ACPI_COMMON_FIELD_INFO; No structure fields outside of the common - * area are initialized by this procedure. - */ - obj_desc->common_field.field_flags = field_flags; - obj_desc->common_field.attribute = field_attribute; - obj_desc->common_field.bit_length = field_bit_length; - - /* - * Decode the access type so we can compute offsets. The access type gives - * two pieces of information - the width of each field access and the - * necessary byte_alignment (address granularity) of the access. - * - * For any_acc, the access_bit_width is the largest width that is both - * necessary and possible in an attempt to access the whole field in one - * I/O operation. However, for any_acc, the byte_alignment is always one - * byte. - * - * For all Buffer Fields, the byte_alignment is always one byte. - * - * For all other access types (Byte, Word, Dword, Qword), the Bitwidth is - * the same (equivalent) as the byte_alignment. - */ - access_bit_width = acpi_ex_decode_field_access(obj_desc, field_flags, - &byte_alignment); - if (!access_bit_width) { - return_ACPI_STATUS(AE_AML_OPERAND_VALUE); - } - - /* Setup width (access granularity) fields */ - - obj_desc->common_field.access_byte_width = (u8) - ACPI_DIV_8(access_bit_width); /* 1, 2, 4, 8 */ - - obj_desc->common_field.access_bit_width = (u8) access_bit_width; - - /* - * base_byte_offset is the address of the start of the field within the - * region. It is the byte address of the first *datum* (field-width data - * unit) of the field. (i.e., the first datum that contains at least the - * first *bit* of the field.) - * - * Note: byte_alignment is always either equal to the access_bit_width or 8 - * (Byte access), and it defines the addressing granularity of the parent - * region or buffer. - */ - nearest_byte_address = - ACPI_ROUND_BITS_DOWN_TO_BYTES(field_bit_position); - obj_desc->common_field.base_byte_offset = (u32) - ACPI_ROUND_DOWN(nearest_byte_address, byte_alignment); - - /* - * start_field_bit_offset is the offset of the first bit of the field within - * a field datum. - */ - obj_desc->common_field.start_field_bit_offset = (u8) - (field_bit_position - - ACPI_MUL_8(obj_desc->common_field.base_byte_offset)); - - /* - * Does the entire field fit within a single field access element? (datum) - * (i.e., without crossing a datum boundary) - */ - if ((obj_desc->common_field.start_field_bit_offset + - field_bit_length) <= (u16) access_bit_width) { - obj_desc->common.flags |= AOPOBJ_SINGLE_DATUM; - } - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_prep_field_value - * - * PARAMETERS: Info - Contains all field creation info - * - * RETURN: Status - * - * DESCRIPTION: Construct an union acpi_operand_object of type def_field and - * connect it to the parent Node. - * - ******************************************************************************/ - -acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info) -{ - union acpi_operand_object *obj_desc; - union acpi_operand_object *second_desc = NULL; - u32 type; - acpi_status status; - - ACPI_FUNCTION_TRACE(ex_prep_field_value); - - /* Parameter validation */ - - if (info->field_type != ACPI_TYPE_LOCAL_INDEX_FIELD) { - if (!info->region_node) { - ACPI_ERROR((AE_INFO, "Null RegionNode")); - return_ACPI_STATUS(AE_AML_NO_OPERAND); - } - - type = acpi_ns_get_type(info->region_node); - if (type != ACPI_TYPE_REGION) { - ACPI_ERROR((AE_INFO, - "Needed Region, found type %X (%s)", - type, acpi_ut_get_type_name(type))); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - } - - /* Allocate a new field object */ - - obj_desc = acpi_ut_create_internal_object(info->field_type); - if (!obj_desc) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Initialize areas of the object that are common to all fields */ - - obj_desc->common_field.node = info->field_node; - status = acpi_ex_prep_common_field_object(obj_desc, info->field_flags, - info->attribute, - info->field_bit_position, - info->field_bit_length); - if (ACPI_FAILURE(status)) { - acpi_ut_delete_object_desc(obj_desc); - return_ACPI_STATUS(status); - } - - /* Initialize areas of the object that are specific to the field type */ - - switch (info->field_type) { - case ACPI_TYPE_LOCAL_REGION_FIELD: - - obj_desc->field.region_obj = - acpi_ns_get_attached_object(info->region_node); - - /* An additional reference for the container */ - - acpi_ut_add_reference(obj_desc->field.region_obj); - - ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "RegionField: BitOff %X, Off %X, Gran %X, Region %p\n", - obj_desc->field.start_field_bit_offset, - obj_desc->field.base_byte_offset, - obj_desc->field.access_byte_width, - obj_desc->field.region_obj)); - break; - - case ACPI_TYPE_LOCAL_BANK_FIELD: - - obj_desc->bank_field.value = info->bank_value; - obj_desc->bank_field.region_obj = - acpi_ns_get_attached_object(info->region_node); - obj_desc->bank_field.bank_obj = - acpi_ns_get_attached_object(info->register_node); - - /* An additional reference for the attached objects */ - - acpi_ut_add_reference(obj_desc->bank_field.region_obj); - acpi_ut_add_reference(obj_desc->bank_field.bank_obj); - - ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "Bank Field: BitOff %X, Off %X, Gran %X, Region %p, BankReg %p\n", - obj_desc->bank_field.start_field_bit_offset, - obj_desc->bank_field.base_byte_offset, - obj_desc->field.access_byte_width, - obj_desc->bank_field.region_obj, - obj_desc->bank_field.bank_obj)); - - /* - * Remember location in AML stream of the field unit - * opcode and operands -- since the bank_value - * operands must be evaluated. - */ - second_desc = obj_desc->common.next_object; - second_desc->extra.aml_start = - ACPI_CAST_PTR(union acpi_parse_object, - info->data_register_node)->named.data; - second_desc->extra.aml_length = - ACPI_CAST_PTR(union acpi_parse_object, - info->data_register_node)->named.length; - - break; - - case ACPI_TYPE_LOCAL_INDEX_FIELD: - - /* Get the Index and Data registers */ - - obj_desc->index_field.index_obj = - acpi_ns_get_attached_object(info->register_node); - obj_desc->index_field.data_obj = - acpi_ns_get_attached_object(info->data_register_node); - - if (!obj_desc->index_field.data_obj - || !obj_desc->index_field.index_obj) { - ACPI_ERROR((AE_INFO, - "Null Index Object during field prep")); - acpi_ut_delete_object_desc(obj_desc); - return_ACPI_STATUS(AE_AML_INTERNAL); - } - - /* An additional reference for the attached objects */ - - acpi_ut_add_reference(obj_desc->index_field.data_obj); - acpi_ut_add_reference(obj_desc->index_field.index_obj); - - /* - * April 2006: Changed to match MS behavior - * - * The value written to the Index register is the byte offset of the - * target field in units of the granularity of the index_field - * - * Previously, the value was calculated as an index in terms of the - * width of the Data register, as below: - * - * obj_desc->index_field.Value = (u32) - * (Info->field_bit_position / ACPI_MUL_8 ( - * obj_desc->Field.access_byte_width)); - * - * February 2006: Tried value as a byte offset: - * obj_desc->index_field.Value = (u32) - * ACPI_DIV_8 (Info->field_bit_position); - */ - obj_desc->index_field.value = - (u32) ACPI_ROUND_DOWN(ACPI_DIV_8(info->field_bit_position), - obj_desc->index_field. - access_byte_width); - - ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "IndexField: BitOff %X, Off %X, Value %X, Gran %X, Index %p, Data %p\n", - obj_desc->index_field.start_field_bit_offset, - obj_desc->index_field.base_byte_offset, - obj_desc->index_field.value, - obj_desc->field.access_byte_width, - obj_desc->index_field.index_obj, - obj_desc->index_field.data_obj)); - break; - - default: - /* No other types should get here */ - break; - } - - /* - * Store the constructed descriptor (obj_desc) into the parent Node, - * preserving the current type of that named_obj. - */ - status = acpi_ns_attach_object(info->field_node, obj_desc, - acpi_ns_get_type(info->field_node)); - - ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "Set NamedObj %p [%4.4s], ObjDesc %p\n", - info->field_node, - acpi_ut_get_node_name(info->field_node), obj_desc)); - - /* Remove local reference to the object */ - - acpi_ut_remove_reference(obj_desc); - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/executer/exregion.c b/drivers/acpi/executer/exregion.c deleted file mode 100644 index ceb269e45aba..000000000000 --- a/drivers/acpi/executer/exregion.c +++ /dev/null @@ -1,499 +0,0 @@ - -/****************************************************************************** - * - * Module Name: exregion - ACPI default op_region (address space) handlers - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_EXECUTER -ACPI_MODULE_NAME("exregion") - -/******************************************************************************* - * - * FUNCTION: acpi_ex_system_memory_space_handler - * - * PARAMETERS: Function - Read or Write operation - * Address - Where in the space to read or write - * bit_width - Field width in bits (8, 16, or 32) - * Value - Pointer to in or out value - * handler_context - Pointer to Handler's context - * region_context - Pointer to context specific to the - * accessed region - * - * RETURN: Status - * - * DESCRIPTION: Handler for the System Memory address space (Op Region) - * - ******************************************************************************/ -acpi_status -acpi_ex_system_memory_space_handler(u32 function, - acpi_physical_address address, - u32 bit_width, - acpi_integer * value, - void *handler_context, void *region_context) -{ - acpi_status status = AE_OK; - void *logical_addr_ptr = NULL; - struct acpi_mem_space_context *mem_info = region_context; - u32 length; - acpi_size window_size; -#ifdef ACPI_MISALIGNMENT_NOT_SUPPORTED - u32 remainder; -#endif - - ACPI_FUNCTION_TRACE(ex_system_memory_space_handler); - - /* Validate and translate the bit width */ - - switch (bit_width) { - case 8: - length = 1; - break; - - case 16: - length = 2; - break; - - case 32: - length = 4; - break; - - case 64: - length = 8; - break; - - default: - ACPI_ERROR((AE_INFO, "Invalid SystemMemory width %d", - bit_width)); - return_ACPI_STATUS(AE_AML_OPERAND_VALUE); - } - -#ifdef ACPI_MISALIGNMENT_NOT_SUPPORTED - /* - * Hardware does not support non-aligned data transfers, we must verify - * the request. - */ - (void)acpi_ut_short_divide((acpi_integer) address, length, NULL, - &remainder); - if (remainder != 0) { - return_ACPI_STATUS(AE_AML_ALIGNMENT); - } -#endif - - /* - * Does the request fit into the cached memory mapping? - * Is 1) Address below the current mapping? OR - * 2) Address beyond the current mapping? - */ - if ((address < mem_info->mapped_physical_address) || - (((acpi_integer) address + length) > ((acpi_integer) - mem_info-> - mapped_physical_address + - mem_info->mapped_length))) { - /* - * The request cannot be resolved by the current memory mapping; - * Delete the existing mapping and create a new one. - */ - if (mem_info->mapped_length) { - - /* Valid mapping, delete it */ - - acpi_os_unmap_memory(mem_info->mapped_logical_address, - mem_info->mapped_length); - } - - /* - * Don't attempt to map memory beyond the end of the region, and - * constrain the maximum mapping size to something reasonable. - */ - window_size = (acpi_size) - ((mem_info->address + mem_info->length) - address); - - if (window_size > ACPI_SYSMEM_REGION_WINDOW_SIZE) { - window_size = ACPI_SYSMEM_REGION_WINDOW_SIZE; - } - - /* Create a new mapping starting at the address given */ - - mem_info->mapped_logical_address = - acpi_os_map_memory((acpi_physical_address) address, window_size); - if (!mem_info->mapped_logical_address) { - ACPI_ERROR((AE_INFO, - "Could not map memory at %8.8X%8.8X, size %X", - ACPI_FORMAT_NATIVE_UINT(address), - (u32) window_size)); - mem_info->mapped_length = 0; - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Save the physical address and mapping size */ - - mem_info->mapped_physical_address = address; - mem_info->mapped_length = window_size; - } - - /* - * Generate a logical pointer corresponding to the address we want to - * access - */ - logical_addr_ptr = mem_info->mapped_logical_address + - ((acpi_integer) address - - (acpi_integer) mem_info->mapped_physical_address); - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "System-Memory (width %d) R/W %d Address=%8.8X%8.8X\n", - bit_width, function, - ACPI_FORMAT_NATIVE_UINT(address))); - - /* - * Perform the memory read or write - * - * Note: For machines that do not support non-aligned transfers, the target - * address was checked for alignment above. We do not attempt to break the - * transfer up into smaller (byte-size) chunks because the AML specifically - * asked for a transfer width that the hardware may require. - */ - switch (function) { - case ACPI_READ: - - *value = 0; - switch (bit_width) { - case 8: - *value = (acpi_integer) ACPI_GET8(logical_addr_ptr); - break; - - case 16: - *value = (acpi_integer) ACPI_GET16(logical_addr_ptr); - break; - - case 32: - *value = (acpi_integer) ACPI_GET32(logical_addr_ptr); - break; - - case 64: - *value = (acpi_integer) ACPI_GET64(logical_addr_ptr); - break; - - default: - /* bit_width was already validated */ - break; - } - break; - - case ACPI_WRITE: - - switch (bit_width) { - case 8: - ACPI_SET8(logical_addr_ptr) = (u8) * value; - break; - - case 16: - ACPI_SET16(logical_addr_ptr) = (u16) * value; - break; - - case 32: - ACPI_SET32(logical_addr_ptr) = (u32) * value; - break; - - case 64: - ACPI_SET64(logical_addr_ptr) = (u64) * value; - break; - - default: - /* bit_width was already validated */ - break; - } - break; - - default: - status = AE_BAD_PARAMETER; - break; - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_system_io_space_handler - * - * PARAMETERS: Function - Read or Write operation - * Address - Where in the space to read or write - * bit_width - Field width in bits (8, 16, or 32) - * Value - Pointer to in or out value - * handler_context - Pointer to Handler's context - * region_context - Pointer to context specific to the - * accessed region - * - * RETURN: Status - * - * DESCRIPTION: Handler for the System IO address space (Op Region) - * - ******************************************************************************/ - -acpi_status -acpi_ex_system_io_space_handler(u32 function, - acpi_physical_address address, - u32 bit_width, - acpi_integer * value, - void *handler_context, void *region_context) -{ - acpi_status status = AE_OK; - u32 value32; - - ACPI_FUNCTION_TRACE(ex_system_io_space_handler); - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "System-IO (width %d) R/W %d Address=%8.8X%8.8X\n", - bit_width, function, - ACPI_FORMAT_NATIVE_UINT(address))); - - /* Decode the function parameter */ - - switch (function) { - case ACPI_READ: - - status = acpi_os_read_port((acpi_io_address) address, - &value32, bit_width); - *value = value32; - break; - - case ACPI_WRITE: - - status = acpi_os_write_port((acpi_io_address) address, - (u32) * value, bit_width); - break; - - default: - status = AE_BAD_PARAMETER; - break; - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_pci_config_space_handler - * - * PARAMETERS: Function - Read or Write operation - * Address - Where in the space to read or write - * bit_width - Field width in bits (8, 16, or 32) - * Value - Pointer to in or out value - * handler_context - Pointer to Handler's context - * region_context - Pointer to context specific to the - * accessed region - * - * RETURN: Status - * - * DESCRIPTION: Handler for the PCI Config address space (Op Region) - * - ******************************************************************************/ - -acpi_status -acpi_ex_pci_config_space_handler(u32 function, - acpi_physical_address address, - u32 bit_width, - acpi_integer * value, - void *handler_context, void *region_context) -{ - acpi_status status = AE_OK; - struct acpi_pci_id *pci_id; - u16 pci_register; - u32 value32; - - ACPI_FUNCTION_TRACE(ex_pci_config_space_handler); - - /* - * The arguments to acpi_os(Read|Write)pci_configuration are: - * - * pci_segment is the PCI bus segment range 0-31 - * pci_bus is the PCI bus number range 0-255 - * pci_device is the PCI device number range 0-31 - * pci_function is the PCI device function number - * pci_register is the Config space register range 0-255 bytes - * - * Value - input value for write, output address for read - * - */ - pci_id = (struct acpi_pci_id *)region_context; - pci_register = (u16) (u32) address; - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Pci-Config %d (%d) Seg(%04x) Bus(%04x) Dev(%04x) Func(%04x) Reg(%04x)\n", - function, bit_width, pci_id->segment, pci_id->bus, - pci_id->device, pci_id->function, pci_register)); - - switch (function) { - case ACPI_READ: - - status = acpi_os_read_pci_configuration(pci_id, pci_register, - &value32, bit_width); - *value = value32; - break; - - case ACPI_WRITE: - - status = acpi_os_write_pci_configuration(pci_id, pci_register, - *value, bit_width); - break; - - default: - - status = AE_BAD_PARAMETER; - break; - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_cmos_space_handler - * - * PARAMETERS: Function - Read or Write operation - * Address - Where in the space to read or write - * bit_width - Field width in bits (8, 16, or 32) - * Value - Pointer to in or out value - * handler_context - Pointer to Handler's context - * region_context - Pointer to context specific to the - * accessed region - * - * RETURN: Status - * - * DESCRIPTION: Handler for the CMOS address space (Op Region) - * - ******************************************************************************/ - -acpi_status -acpi_ex_cmos_space_handler(u32 function, - acpi_physical_address address, - u32 bit_width, - acpi_integer * value, - void *handler_context, void *region_context) -{ - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(ex_cmos_space_handler); - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_pci_bar_space_handler - * - * PARAMETERS: Function - Read or Write operation - * Address - Where in the space to read or write - * bit_width - Field width in bits (8, 16, or 32) - * Value - Pointer to in or out value - * handler_context - Pointer to Handler's context - * region_context - Pointer to context specific to the - * accessed region - * - * RETURN: Status - * - * DESCRIPTION: Handler for the PCI bar_target address space (Op Region) - * - ******************************************************************************/ - -acpi_status -acpi_ex_pci_bar_space_handler(u32 function, - acpi_physical_address address, - u32 bit_width, - acpi_integer * value, - void *handler_context, void *region_context) -{ - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(ex_pci_bar_space_handler); - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_data_table_space_handler - * - * PARAMETERS: Function - Read or Write operation - * Address - Where in the space to read or write - * bit_width - Field width in bits (8, 16, or 32) - * Value - Pointer to in or out value - * handler_context - Pointer to Handler's context - * region_context - Pointer to context specific to the - * accessed region - * - * RETURN: Status - * - * DESCRIPTION: Handler for the Data Table address space (Op Region) - * - ******************************************************************************/ - -acpi_status -acpi_ex_data_table_space_handler(u32 function, - acpi_physical_address address, - u32 bit_width, - acpi_integer * value, - void *handler_context, void *region_context) -{ - ACPI_FUNCTION_TRACE(ex_data_table_space_handler); - - /* Perform the memory read or write */ - - switch (function) { - case ACPI_READ: - - ACPI_MEMCPY(ACPI_CAST_PTR(char, value), - ACPI_PHYSADDR_TO_PTR(address), - ACPI_DIV_8(bit_width)); - break; - - case ACPI_WRITE: - default: - - return_ACPI_STATUS(AE_SUPPORT); - } - - return_ACPI_STATUS(AE_OK); -} diff --git a/drivers/acpi/executer/exresnte.c b/drivers/acpi/executer/exresnte.c deleted file mode 100644 index 77df6e490e70..000000000000 --- a/drivers/acpi/executer/exresnte.c +++ /dev/null @@ -1,278 +0,0 @@ - -/****************************************************************************** - * - * Module Name: exresnte - AML Interpreter object resolution - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_EXECUTER -ACPI_MODULE_NAME("exresnte") - -/******************************************************************************* - * - * FUNCTION: acpi_ex_resolve_node_to_value - * - * PARAMETERS: object_ptr - Pointer to a location that contains - * a pointer to a NS node, and will receive a - * pointer to the resolved object. - * walk_state - Current state. Valid only if executing AML - * code. NULL if simply resolving an object - * - * RETURN: Status - * - * DESCRIPTION: Resolve a Namespace node to a valued object - * - * Note: for some of the data types, the pointer attached to the Node - * can be either a pointer to an actual internal object or a pointer into the - * AML stream itself. These types are currently: - * - * ACPI_TYPE_INTEGER - * ACPI_TYPE_STRING - * ACPI_TYPE_BUFFER - * ACPI_TYPE_MUTEX - * ACPI_TYPE_PACKAGE - * - ******************************************************************************/ -acpi_status -acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr, - struct acpi_walk_state *walk_state) -{ - acpi_status status = AE_OK; - union acpi_operand_object *source_desc; - union acpi_operand_object *obj_desc = NULL; - struct acpi_namespace_node *node; - acpi_object_type entry_type; - - ACPI_FUNCTION_TRACE(ex_resolve_node_to_value); - - /* - * The stack pointer points to a struct acpi_namespace_node (Node). Get the - * object that is attached to the Node. - */ - node = *object_ptr; - source_desc = acpi_ns_get_attached_object(node); - entry_type = acpi_ns_get_type((acpi_handle) node); - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Entry=%p SourceDesc=%p [%s]\n", - node, source_desc, - acpi_ut_get_type_name(entry_type))); - - if ((entry_type == ACPI_TYPE_LOCAL_ALIAS) || - (entry_type == ACPI_TYPE_LOCAL_METHOD_ALIAS)) { - - /* There is always exactly one level of indirection */ - - node = ACPI_CAST_PTR(struct acpi_namespace_node, node->object); - source_desc = acpi_ns_get_attached_object(node); - entry_type = acpi_ns_get_type((acpi_handle) node); - *object_ptr = node; - } - - /* - * Several object types require no further processing: - * 1) Device/Thermal objects don't have a "real" subobject, return the Node - * 2) Method locals and arguments have a pseudo-Node - * 3) 10/2007: Added method type to assist with Package construction. - */ - if ((entry_type == ACPI_TYPE_DEVICE) || - (entry_type == ACPI_TYPE_THERMAL) || - (entry_type == ACPI_TYPE_METHOD) || - (node->flags & (ANOBJ_METHOD_ARG | ANOBJ_METHOD_LOCAL))) { - return_ACPI_STATUS(AE_OK); - } - - if (!source_desc) { - ACPI_ERROR((AE_INFO, "No object attached to node %p", node)); - return_ACPI_STATUS(AE_AML_NO_OPERAND); - } - - /* - * Action is based on the type of the Node, which indicates the type - * of the attached object or pointer - */ - switch (entry_type) { - case ACPI_TYPE_PACKAGE: - - if (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_PACKAGE) { - ACPI_ERROR((AE_INFO, "Object not a Package, type %s", - acpi_ut_get_object_type_name(source_desc))); - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - - status = acpi_ds_get_package_arguments(source_desc); - if (ACPI_SUCCESS(status)) { - - /* Return an additional reference to the object */ - - obj_desc = source_desc; - acpi_ut_add_reference(obj_desc); - } - break; - - case ACPI_TYPE_BUFFER: - - if (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_BUFFER) { - ACPI_ERROR((AE_INFO, "Object not a Buffer, type %s", - acpi_ut_get_object_type_name(source_desc))); - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - - status = acpi_ds_get_buffer_arguments(source_desc); - if (ACPI_SUCCESS(status)) { - - /* Return an additional reference to the object */ - - obj_desc = source_desc; - acpi_ut_add_reference(obj_desc); - } - break; - - case ACPI_TYPE_STRING: - - if (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_STRING) { - ACPI_ERROR((AE_INFO, "Object not a String, type %s", - acpi_ut_get_object_type_name(source_desc))); - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - - /* Return an additional reference to the object */ - - obj_desc = source_desc; - acpi_ut_add_reference(obj_desc); - break; - - case ACPI_TYPE_INTEGER: - - if (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_INTEGER) { - ACPI_ERROR((AE_INFO, "Object not a Integer, type %s", - acpi_ut_get_object_type_name(source_desc))); - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - - /* Return an additional reference to the object */ - - obj_desc = source_desc; - acpi_ut_add_reference(obj_desc); - break; - - case ACPI_TYPE_BUFFER_FIELD: - case ACPI_TYPE_LOCAL_REGION_FIELD: - case ACPI_TYPE_LOCAL_BANK_FIELD: - case ACPI_TYPE_LOCAL_INDEX_FIELD: - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "FieldRead Node=%p SourceDesc=%p Type=%X\n", - node, source_desc, entry_type)); - - status = - acpi_ex_read_data_from_field(walk_state, source_desc, - &obj_desc); - break; - - /* For these objects, just return the object attached to the Node */ - - case ACPI_TYPE_MUTEX: - case ACPI_TYPE_POWER: - case ACPI_TYPE_PROCESSOR: - case ACPI_TYPE_EVENT: - case ACPI_TYPE_REGION: - - /* Return an additional reference to the object */ - - obj_desc = source_desc; - acpi_ut_add_reference(obj_desc); - break; - - /* TYPE_ANY is untyped, and thus there is no object associated with it */ - - case ACPI_TYPE_ANY: - - ACPI_ERROR((AE_INFO, - "Untyped entry %p, no attached object!", node)); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); /* Cannot be AE_TYPE */ - - case ACPI_TYPE_LOCAL_REFERENCE: - - switch (source_desc->reference.class) { - case ACPI_REFCLASS_TABLE: /* This is a ddb_handle */ - case ACPI_REFCLASS_REFOF: - case ACPI_REFCLASS_INDEX: - - /* Return an additional reference to the object */ - - obj_desc = source_desc; - acpi_ut_add_reference(obj_desc); - break; - - default: - /* No named references are allowed here */ - - ACPI_ERROR((AE_INFO, - "Unsupported Reference type %X", - source_desc->reference.class)); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - break; - - default: - - /* Default case is for unknown types */ - - ACPI_ERROR((AE_INFO, - "Node %p - Unknown object type %X", - node, entry_type)); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - - } /* switch (entry_type) */ - - /* Return the object descriptor */ - - *object_ptr = (void *)obj_desc; - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/executer/exresolv.c b/drivers/acpi/executer/exresolv.c deleted file mode 100644 index 42adde01bc93..000000000000 --- a/drivers/acpi/executer/exresolv.c +++ /dev/null @@ -1,551 +0,0 @@ - -/****************************************************************************** - * - * Module Name: exresolv - AML Interpreter object resolution - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_EXECUTER -ACPI_MODULE_NAME("exresolv") - -/* Local prototypes */ -static acpi_status -acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr, - struct acpi_walk_state *walk_state); - -/******************************************************************************* - * - * FUNCTION: acpi_ex_resolve_to_value - * - * PARAMETERS: **stack_ptr - Points to entry on obj_stack, which can - * be either an (union acpi_operand_object *) - * or an acpi_handle. - * walk_state - Current method state - * - * RETURN: Status - * - * DESCRIPTION: Convert Reference objects to values - * - ******************************************************************************/ - -acpi_status -acpi_ex_resolve_to_value(union acpi_operand_object **stack_ptr, - struct acpi_walk_state *walk_state) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE_PTR(ex_resolve_to_value, stack_ptr); - - if (!stack_ptr || !*stack_ptr) { - ACPI_ERROR((AE_INFO, "Internal - null pointer")); - return_ACPI_STATUS(AE_AML_NO_OPERAND); - } - - /* - * The entity pointed to by the stack_ptr can be either - * 1) A valid union acpi_operand_object, or - * 2) A struct acpi_namespace_node (named_obj) - */ - if (ACPI_GET_DESCRIPTOR_TYPE(*stack_ptr) == ACPI_DESC_TYPE_OPERAND) { - status = acpi_ex_resolve_object_to_value(stack_ptr, walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - if (!*stack_ptr) { - ACPI_ERROR((AE_INFO, "Internal - null pointer")); - return_ACPI_STATUS(AE_AML_NO_OPERAND); - } - } - - /* - * Object on the stack may have changed if acpi_ex_resolve_object_to_value() - * was called (i.e., we can't use an _else_ here.) - */ - if (ACPI_GET_DESCRIPTOR_TYPE(*stack_ptr) == ACPI_DESC_TYPE_NAMED) { - status = - acpi_ex_resolve_node_to_value(ACPI_CAST_INDIRECT_PTR - (struct acpi_namespace_node, - stack_ptr), walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Resolved object %p\n", *stack_ptr)); - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_resolve_object_to_value - * - * PARAMETERS: stack_ptr - Pointer to an internal object - * walk_state - Current method state - * - * RETURN: Status - * - * DESCRIPTION: Retrieve the value from an internal object. The Reference type - * uses the associated AML opcode to determine the value. - * - ******************************************************************************/ - -static acpi_status -acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr, - struct acpi_walk_state *walk_state) -{ - acpi_status status = AE_OK; - union acpi_operand_object *stack_desc; - union acpi_operand_object *obj_desc = NULL; - u8 ref_type; - - ACPI_FUNCTION_TRACE(ex_resolve_object_to_value); - - stack_desc = *stack_ptr; - - /* This is an union acpi_operand_object */ - - switch (ACPI_GET_OBJECT_TYPE(stack_desc)) { - case ACPI_TYPE_LOCAL_REFERENCE: - - ref_type = stack_desc->reference.class; - - switch (ref_type) { - case ACPI_REFCLASS_LOCAL: - case ACPI_REFCLASS_ARG: - - /* - * Get the local from the method's state info - * Note: this increments the local's object reference count - */ - status = acpi_ds_method_data_get_value(ref_type, - stack_desc-> - reference.value, - walk_state, - &obj_desc); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "[Arg/Local %X] ValueObj is %p\n", - stack_desc->reference.value, - obj_desc)); - - /* - * Now we can delete the original Reference Object and - * replace it with the resolved value - */ - acpi_ut_remove_reference(stack_desc); - *stack_ptr = obj_desc; - break; - - case ACPI_REFCLASS_INDEX: - - switch (stack_desc->reference.target_type) { - case ACPI_TYPE_BUFFER_FIELD: - - /* Just return - do not dereference */ - break; - - case ACPI_TYPE_PACKAGE: - - /* If method call or copy_object - do not dereference */ - - if ((walk_state->opcode == - AML_INT_METHODCALL_OP) - || (walk_state->opcode == AML_COPY_OP)) { - break; - } - - /* Otherwise, dereference the package_index to a package element */ - - obj_desc = *stack_desc->reference.where; - if (obj_desc) { - /* - * Valid object descriptor, copy pointer to return value - * (i.e., dereference the package index) - * Delete the ref object, increment the returned object - */ - acpi_ut_remove_reference(stack_desc); - acpi_ut_add_reference(obj_desc); - *stack_ptr = obj_desc; - } else { - /* - * A NULL object descriptor means an uninitialized element of - * the package, can't dereference it - */ - ACPI_ERROR((AE_INFO, - "Attempt to dereference an Index to NULL package element Idx=%p", - stack_desc)); - status = AE_AML_UNINITIALIZED_ELEMENT; - } - break; - - default: - - /* Invalid reference object */ - - ACPI_ERROR((AE_INFO, - "Unknown TargetType %X in Index/Reference object %p", - stack_desc->reference.target_type, - stack_desc)); - status = AE_AML_INTERNAL; - break; - } - break; - - case ACPI_REFCLASS_REFOF: - case ACPI_REFCLASS_DEBUG: - case ACPI_REFCLASS_TABLE: - - /* Just leave the object as-is, do not dereference */ - - break; - - case ACPI_REFCLASS_NAME: /* Reference to a named object */ - - /* Dereference the name */ - - if ((stack_desc->reference.node->type == - ACPI_TYPE_DEVICE) - || (stack_desc->reference.node->type == - ACPI_TYPE_THERMAL)) { - - /* These node types do not have 'real' subobjects */ - - *stack_ptr = (void *)stack_desc->reference.node; - } else { - /* Get the object pointed to by the namespace node */ - - *stack_ptr = - (stack_desc->reference.node)->object; - acpi_ut_add_reference(*stack_ptr); - } - - acpi_ut_remove_reference(stack_desc); - break; - - default: - - ACPI_ERROR((AE_INFO, - "Unknown Reference type %X in %p", ref_type, - stack_desc)); - status = AE_AML_INTERNAL; - break; - } - break; - - case ACPI_TYPE_BUFFER: - - status = acpi_ds_get_buffer_arguments(stack_desc); - break; - - case ACPI_TYPE_PACKAGE: - - status = acpi_ds_get_package_arguments(stack_desc); - break; - - case ACPI_TYPE_BUFFER_FIELD: - case ACPI_TYPE_LOCAL_REGION_FIELD: - case ACPI_TYPE_LOCAL_BANK_FIELD: - case ACPI_TYPE_LOCAL_INDEX_FIELD: - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "FieldRead SourceDesc=%p Type=%X\n", - stack_desc, - ACPI_GET_OBJECT_TYPE(stack_desc))); - - status = - acpi_ex_read_data_from_field(walk_state, stack_desc, - &obj_desc); - - /* Remove a reference to the original operand, then override */ - - acpi_ut_remove_reference(*stack_ptr); - *stack_ptr = (void *)obj_desc; - break; - - default: - break; - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_resolve_multiple - * - * PARAMETERS: walk_state - Current state (contains AML opcode) - * Operand - Starting point for resolution - * return_type - Where the object type is returned - * return_desc - Where the resolved object is returned - * - * RETURN: Status - * - * DESCRIPTION: Return the base object and type. Traverse a reference list if - * necessary to get to the base object. - * - ******************************************************************************/ - -acpi_status -acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state, - union acpi_operand_object *operand, - acpi_object_type * return_type, - union acpi_operand_object **return_desc) -{ - union acpi_operand_object *obj_desc = (void *)operand; - struct acpi_namespace_node *node; - acpi_object_type type; - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_ex_resolve_multiple); - - /* Operand can be either a namespace node or an operand descriptor */ - - switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) { - case ACPI_DESC_TYPE_OPERAND: - type = obj_desc->common.type; - break; - - case ACPI_DESC_TYPE_NAMED: - type = ((struct acpi_namespace_node *)obj_desc)->type; - obj_desc = - acpi_ns_get_attached_object((struct acpi_namespace_node *) - obj_desc); - - /* If we had an Alias node, use the attached object for type info */ - - if (type == ACPI_TYPE_LOCAL_ALIAS) { - type = ((struct acpi_namespace_node *)obj_desc)->type; - obj_desc = - acpi_ns_get_attached_object((struct - acpi_namespace_node *) - obj_desc); - } - break; - - default: - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - - /* If type is anything other than a reference, we are done */ - - if (type != ACPI_TYPE_LOCAL_REFERENCE) { - goto exit; - } - - /* - * For reference objects created via the ref_of, Index, or Load/load_table - * operators, we need to get to the base object (as per the ACPI - * specification of the object_type and size_of operators). This means - * traversing the list of possibly many nested references. - */ - while (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_REFERENCE) { - switch (obj_desc->reference.class) { - case ACPI_REFCLASS_REFOF: - case ACPI_REFCLASS_NAME: - - /* Dereference the reference pointer */ - - if (obj_desc->reference.class == ACPI_REFCLASS_REFOF) { - node = obj_desc->reference.object; - } else { /* AML_INT_NAMEPATH_OP */ - - node = obj_desc->reference.node; - } - - /* All "References" point to a NS node */ - - if (ACPI_GET_DESCRIPTOR_TYPE(node) != - ACPI_DESC_TYPE_NAMED) { - ACPI_ERROR((AE_INFO, "Not a NS node %p [%s]", - node, - acpi_ut_get_descriptor_name(node))); - return_ACPI_STATUS(AE_AML_INTERNAL); - } - - /* Get the attached object */ - - obj_desc = acpi_ns_get_attached_object(node); - if (!obj_desc) { - - /* No object, use the NS node type */ - - type = acpi_ns_get_type(node); - goto exit; - } - - /* Check for circular references */ - - if (obj_desc == operand) { - return_ACPI_STATUS(AE_AML_CIRCULAR_REFERENCE); - } - break; - - case ACPI_REFCLASS_INDEX: - - /* Get the type of this reference (index into another object) */ - - type = obj_desc->reference.target_type; - if (type != ACPI_TYPE_PACKAGE) { - goto exit; - } - - /* - * The main object is a package, we want to get the type - * of the individual package element that is referenced by - * the index. - * - * This could of course in turn be another reference object. - */ - obj_desc = *(obj_desc->reference.where); - if (!obj_desc) { - - /* NULL package elements are allowed */ - - type = 0; /* Uninitialized */ - goto exit; - } - break; - - case ACPI_REFCLASS_TABLE: - - type = ACPI_TYPE_DDB_HANDLE; - goto exit; - - case ACPI_REFCLASS_LOCAL: - case ACPI_REFCLASS_ARG: - - if (return_desc) { - status = - acpi_ds_method_data_get_value(obj_desc-> - reference. - class, - obj_desc-> - reference. - value, - walk_state, - &obj_desc); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - acpi_ut_remove_reference(obj_desc); - } else { - status = - acpi_ds_method_data_get_node(obj_desc-> - reference. - class, - obj_desc-> - reference. - value, - walk_state, - &node); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - obj_desc = acpi_ns_get_attached_object(node); - if (!obj_desc) { - type = ACPI_TYPE_ANY; - goto exit; - } - } - break; - - case ACPI_REFCLASS_DEBUG: - - /* The Debug Object is of type "DebugObject" */ - - type = ACPI_TYPE_DEBUG_OBJECT; - goto exit; - - default: - - ACPI_ERROR((AE_INFO, - "Unknown Reference Class %2.2X", - obj_desc->reference.class)); - return_ACPI_STATUS(AE_AML_INTERNAL); - } - } - - /* - * Now we are guaranteed to have an object that has not been created - * via the ref_of or Index operators. - */ - type = ACPI_GET_OBJECT_TYPE(obj_desc); - - exit: - /* Convert internal types to external types */ - - switch (type) { - case ACPI_TYPE_LOCAL_REGION_FIELD: - case ACPI_TYPE_LOCAL_BANK_FIELD: - case ACPI_TYPE_LOCAL_INDEX_FIELD: - - type = ACPI_TYPE_FIELD_UNIT; - break; - - case ACPI_TYPE_LOCAL_SCOPE: - - /* Per ACPI Specification, Scope is untyped */ - - type = ACPI_TYPE_ANY; - break; - - default: - /* No change to Type required */ - break; - } - - *return_type = type; - if (return_desc) { - *return_desc = obj_desc; - } - return_ACPI_STATUS(AE_OK); -} diff --git a/drivers/acpi/executer/exresop.c b/drivers/acpi/executer/exresop.c deleted file mode 100644 index 7602eaf5c479..000000000000 --- a/drivers/acpi/executer/exresop.c +++ /dev/null @@ -1,701 +0,0 @@ - -/****************************************************************************** - * - * Module Name: exresop - AML Interpreter operand/object resolution - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_EXECUTER -ACPI_MODULE_NAME("exresop") - -/* Local prototypes */ -static acpi_status -acpi_ex_check_object_type(acpi_object_type type_needed, - acpi_object_type this_type, void *object); - -/******************************************************************************* - * - * FUNCTION: acpi_ex_check_object_type - * - * PARAMETERS: type_needed Object type needed - * this_type Actual object type - * Object Object pointer - * - * RETURN: Status - * - * DESCRIPTION: Check required type against actual type - * - ******************************************************************************/ - -static acpi_status -acpi_ex_check_object_type(acpi_object_type type_needed, - acpi_object_type this_type, void *object) -{ - ACPI_FUNCTION_ENTRY(); - - if (type_needed == ACPI_TYPE_ANY) { - - /* All types OK, so we don't perform any typechecks */ - - return (AE_OK); - } - - if (type_needed == ACPI_TYPE_LOCAL_REFERENCE) { - /* - * Allow the AML "Constant" opcodes (Zero, One, etc.) to be reference - * objects and thus allow them to be targets. (As per the ACPI - * specification, a store to a constant is a noop.) - */ - if ((this_type == ACPI_TYPE_INTEGER) && - (((union acpi_operand_object *)object)->common. - flags & AOPOBJ_AML_CONSTANT)) { - return (AE_OK); - } - } - - if (type_needed != this_type) { - ACPI_ERROR((AE_INFO, - "Needed type [%s], found [%s] %p", - acpi_ut_get_type_name(type_needed), - acpi_ut_get_type_name(this_type), object)); - - return (AE_AML_OPERAND_TYPE); - } - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_resolve_operands - * - * PARAMETERS: Opcode - Opcode being interpreted - * stack_ptr - Pointer to the operand stack to be - * resolved - * walk_state - Current state - * - * RETURN: Status - * - * DESCRIPTION: Convert multiple input operands to the types required by the - * target operator. - * - * Each 5-bit group in arg_types represents one required - * operand and indicates the required Type. The corresponding operand - * will be converted to the required type if possible, otherwise we - * abort with an exception. - * - ******************************************************************************/ - -acpi_status -acpi_ex_resolve_operands(u16 opcode, - union acpi_operand_object ** stack_ptr, - struct acpi_walk_state * walk_state) -{ - union acpi_operand_object *obj_desc; - acpi_status status = AE_OK; - u8 object_type; - u32 arg_types; - const struct acpi_opcode_info *op_info; - u32 this_arg_type; - acpi_object_type type_needed; - u16 target_op = 0; - - ACPI_FUNCTION_TRACE_U32(ex_resolve_operands, opcode); - - op_info = acpi_ps_get_opcode_info(opcode); - if (op_info->class == AML_CLASS_UNKNOWN) { - return_ACPI_STATUS(AE_AML_BAD_OPCODE); - } - - arg_types = op_info->runtime_args; - if (arg_types == ARGI_INVALID_OPCODE) { - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", opcode)); - - return_ACPI_STATUS(AE_AML_INTERNAL); - } - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Opcode %X [%s] RequiredOperandTypes=%8.8X\n", - opcode, op_info->name, arg_types)); - - /* - * Normal exit is with (arg_types == 0) at end of argument list. - * Function will return an exception from within the loop upon - * finding an entry which is not (or cannot be converted - * to) the required type; if stack underflows; or upon - * finding a NULL stack entry (which should not happen). - */ - while (GET_CURRENT_ARG_TYPE(arg_types)) { - if (!stack_ptr || !*stack_ptr) { - ACPI_ERROR((AE_INFO, "Null stack entry at %p", - stack_ptr)); - - return_ACPI_STATUS(AE_AML_INTERNAL); - } - - /* Extract useful items */ - - obj_desc = *stack_ptr; - - /* Decode the descriptor type */ - - switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) { - case ACPI_DESC_TYPE_NAMED: - - /* Namespace Node */ - - object_type = - ((struct acpi_namespace_node *)obj_desc)->type; - - /* - * Resolve an alias object. The construction of these objects - * guarantees that there is only one level of alias indirection; - * thus, the attached object is always the aliased namespace node - */ - if (object_type == ACPI_TYPE_LOCAL_ALIAS) { - obj_desc = - acpi_ns_get_attached_object((struct - acpi_namespace_node - *)obj_desc); - *stack_ptr = obj_desc; - object_type = - ((struct acpi_namespace_node *)obj_desc)-> - type; - } - break; - - case ACPI_DESC_TYPE_OPERAND: - - /* ACPI internal object */ - - object_type = ACPI_GET_OBJECT_TYPE(obj_desc); - - /* Check for bad acpi_object_type */ - - if (!acpi_ut_valid_object_type(object_type)) { - ACPI_ERROR((AE_INFO, - "Bad operand object type [%X]", - object_type)); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - - if (object_type == (u8) ACPI_TYPE_LOCAL_REFERENCE) { - - /* Validate the Reference */ - - switch (obj_desc->reference.class) { - case ACPI_REFCLASS_DEBUG: - - target_op = AML_DEBUG_OP; - - /*lint -fallthrough */ - - case ACPI_REFCLASS_ARG: - case ACPI_REFCLASS_LOCAL: - case ACPI_REFCLASS_INDEX: - case ACPI_REFCLASS_REFOF: - case ACPI_REFCLASS_TABLE: /* ddb_handle from LOAD_OP or LOAD_TABLE_OP */ - case ACPI_REFCLASS_NAME: /* Reference to a named object */ - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Operand is a Reference, Class [%s] %2.2X\n", - acpi_ut_get_reference_name - (obj_desc), - obj_desc->reference. - class)); - break; - - default: - - ACPI_ERROR((AE_INFO, - "Unknown Reference Class %2.2X in %p", - obj_desc->reference.class, - obj_desc)); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - } - break; - - default: - - /* Invalid descriptor */ - - ACPI_ERROR((AE_INFO, "Invalid descriptor %p [%s]", - obj_desc, - acpi_ut_get_descriptor_name(obj_desc))); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - - /* Get one argument type, point to the next */ - - this_arg_type = GET_CURRENT_ARG_TYPE(arg_types); - INCREMENT_ARG_LIST(arg_types); - - /* - * Handle cases where the object does not need to be - * resolved to a value - */ - switch (this_arg_type) { - case ARGI_REF_OR_STRING: /* Can be a String or Reference */ - - if ((ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == - ACPI_DESC_TYPE_OPERAND) - && (ACPI_GET_OBJECT_TYPE(obj_desc) == - ACPI_TYPE_STRING)) { - /* - * String found - the string references a named object and - * must be resolved to a node - */ - goto next_operand; - } - - /* - * Else not a string - fall through to the normal Reference - * case below - */ - /*lint -fallthrough */ - - case ARGI_REFERENCE: /* References: */ - case ARGI_INTEGER_REF: - case ARGI_OBJECT_REF: - case ARGI_DEVICE_REF: - case ARGI_TARGETREF: /* Allows implicit conversion rules before store */ - case ARGI_FIXED_TARGET: /* No implicit conversion before store to target */ - case ARGI_SIMPLE_TARGET: /* Name, Local, or Arg - no implicit conversion */ - - /* - * Need an operand of type ACPI_TYPE_LOCAL_REFERENCE - * A Namespace Node is OK as-is - */ - if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == - ACPI_DESC_TYPE_NAMED) { - goto next_operand; - } - - status = - acpi_ex_check_object_type(ACPI_TYPE_LOCAL_REFERENCE, - object_type, obj_desc); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - goto next_operand; - - case ARGI_DATAREFOBJ: /* Store operator only */ - - /* - * We don't want to resolve index_op reference objects during - * a store because this would be an implicit de_ref_of operation. - * Instead, we just want to store the reference object. - * -- All others must be resolved below. - */ - if ((opcode == AML_STORE_OP) && - (ACPI_GET_OBJECT_TYPE(*stack_ptr) == - ACPI_TYPE_LOCAL_REFERENCE) - && ((*stack_ptr)->reference.class == ACPI_REFCLASS_INDEX)) { - goto next_operand; - } - break; - - default: - /* All cases covered above */ - break; - } - - /* - * Resolve this object to a value - */ - status = acpi_ex_resolve_to_value(stack_ptr, walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Get the resolved object */ - - obj_desc = *stack_ptr; - - /* - * Check the resulting object (value) type - */ - switch (this_arg_type) { - /* - * For the simple cases, only one type of resolved object - * is allowed - */ - case ARGI_MUTEX: - - /* Need an operand of type ACPI_TYPE_MUTEX */ - - type_needed = ACPI_TYPE_MUTEX; - break; - - case ARGI_EVENT: - - /* Need an operand of type ACPI_TYPE_EVENT */ - - type_needed = ACPI_TYPE_EVENT; - break; - - case ARGI_PACKAGE: /* Package */ - - /* Need an operand of type ACPI_TYPE_PACKAGE */ - - type_needed = ACPI_TYPE_PACKAGE; - break; - - case ARGI_ANYTYPE: - - /* Any operand type will do */ - - type_needed = ACPI_TYPE_ANY; - break; - - case ARGI_DDBHANDLE: - - /* Need an operand of type ACPI_TYPE_DDB_HANDLE */ - - type_needed = ACPI_TYPE_LOCAL_REFERENCE; - break; - - /* - * The more complex cases allow multiple resolved object types - */ - case ARGI_INTEGER: - - /* - * Need an operand of type ACPI_TYPE_INTEGER, - * But we can implicitly convert from a STRING or BUFFER - * Aka - "Implicit Source Operand Conversion" - */ - status = - acpi_ex_convert_to_integer(obj_desc, stack_ptr, 16); - if (ACPI_FAILURE(status)) { - if (status == AE_TYPE) { - ACPI_ERROR((AE_INFO, - "Needed [Integer/String/Buffer], found [%s] %p", - acpi_ut_get_object_type_name - (obj_desc), obj_desc)); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - - return_ACPI_STATUS(status); - } - - if (obj_desc != *stack_ptr) { - acpi_ut_remove_reference(obj_desc); - } - goto next_operand; - - case ARGI_BUFFER: - - /* - * Need an operand of type ACPI_TYPE_BUFFER, - * But we can implicitly convert from a STRING or INTEGER - * Aka - "Implicit Source Operand Conversion" - */ - status = acpi_ex_convert_to_buffer(obj_desc, stack_ptr); - if (ACPI_FAILURE(status)) { - if (status == AE_TYPE) { - ACPI_ERROR((AE_INFO, - "Needed [Integer/String/Buffer], found [%s] %p", - acpi_ut_get_object_type_name - (obj_desc), obj_desc)); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - - return_ACPI_STATUS(status); - } - - if (obj_desc != *stack_ptr) { - acpi_ut_remove_reference(obj_desc); - } - goto next_operand; - - case ARGI_STRING: - - /* - * Need an operand of type ACPI_TYPE_STRING, - * But we can implicitly convert from a BUFFER or INTEGER - * Aka - "Implicit Source Operand Conversion" - */ - status = acpi_ex_convert_to_string(obj_desc, stack_ptr, - ACPI_IMPLICIT_CONVERT_HEX); - if (ACPI_FAILURE(status)) { - if (status == AE_TYPE) { - ACPI_ERROR((AE_INFO, - "Needed [Integer/String/Buffer], found [%s] %p", - acpi_ut_get_object_type_name - (obj_desc), obj_desc)); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - - return_ACPI_STATUS(status); - } - - if (obj_desc != *stack_ptr) { - acpi_ut_remove_reference(obj_desc); - } - goto next_operand; - - case ARGI_COMPUTEDATA: - - /* Need an operand of type INTEGER, STRING or BUFFER */ - - switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { - case ACPI_TYPE_INTEGER: - case ACPI_TYPE_STRING: - case ACPI_TYPE_BUFFER: - - /* Valid operand */ - break; - - default: - ACPI_ERROR((AE_INFO, - "Needed [Integer/String/Buffer], found [%s] %p", - acpi_ut_get_object_type_name - (obj_desc), obj_desc)); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - goto next_operand; - - case ARGI_BUFFER_OR_STRING: - - /* Need an operand of type STRING or BUFFER */ - - switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { - case ACPI_TYPE_STRING: - case ACPI_TYPE_BUFFER: - - /* Valid operand */ - break; - - case ACPI_TYPE_INTEGER: - - /* Highest priority conversion is to type Buffer */ - - status = - acpi_ex_convert_to_buffer(obj_desc, - stack_ptr); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - if (obj_desc != *stack_ptr) { - acpi_ut_remove_reference(obj_desc); - } - break; - - default: - ACPI_ERROR((AE_INFO, - "Needed [Integer/String/Buffer], found [%s] %p", - acpi_ut_get_object_type_name - (obj_desc), obj_desc)); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - goto next_operand; - - case ARGI_DATAOBJECT: - /* - * ARGI_DATAOBJECT is only used by the size_of operator. - * Need a buffer, string, package, or ref_of reference. - * - * The only reference allowed here is a direct reference to - * a namespace node. - */ - switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { - case ACPI_TYPE_PACKAGE: - case ACPI_TYPE_STRING: - case ACPI_TYPE_BUFFER: - case ACPI_TYPE_LOCAL_REFERENCE: - - /* Valid operand */ - break; - - default: - ACPI_ERROR((AE_INFO, - "Needed [Buffer/String/Package/Reference], found [%s] %p", - acpi_ut_get_object_type_name - (obj_desc), obj_desc)); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - goto next_operand; - - case ARGI_COMPLEXOBJ: - - /* Need a buffer or package or (ACPI 2.0) String */ - - switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { - case ACPI_TYPE_PACKAGE: - case ACPI_TYPE_STRING: - case ACPI_TYPE_BUFFER: - - /* Valid operand */ - break; - - default: - ACPI_ERROR((AE_INFO, - "Needed [Buffer/String/Package], found [%s] %p", - acpi_ut_get_object_type_name - (obj_desc), obj_desc)); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - goto next_operand; - - case ARGI_REGION_OR_BUFFER: /* Used by Load() only */ - - /* Need an operand of type REGION or a BUFFER (which could be a resolved region field) */ - - switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { - case ACPI_TYPE_BUFFER: - case ACPI_TYPE_REGION: - - /* Valid operand */ - break; - - default: - ACPI_ERROR((AE_INFO, - "Needed [Region/Buffer], found [%s] %p", - acpi_ut_get_object_type_name - (obj_desc), obj_desc)); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - goto next_operand; - - case ARGI_DATAREFOBJ: - - /* Used by the Store() operator only */ - - switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { - case ACPI_TYPE_INTEGER: - case ACPI_TYPE_PACKAGE: - case ACPI_TYPE_STRING: - case ACPI_TYPE_BUFFER: - case ACPI_TYPE_BUFFER_FIELD: - case ACPI_TYPE_LOCAL_REFERENCE: - case ACPI_TYPE_LOCAL_REGION_FIELD: - case ACPI_TYPE_LOCAL_BANK_FIELD: - case ACPI_TYPE_LOCAL_INDEX_FIELD: - case ACPI_TYPE_DDB_HANDLE: - - /* Valid operand */ - break; - - default: - - if (acpi_gbl_enable_interpreter_slack) { - /* - * Enable original behavior of Store(), allowing any and all - * objects as the source operand. The ACPI spec does not - * allow this, however. - */ - break; - } - - if (target_op == AML_DEBUG_OP) { - - /* Allow store of any object to the Debug object */ - - break; - } - - ACPI_ERROR((AE_INFO, - "Needed Integer/Buffer/String/Package/Ref/Ddb], found [%s] %p", - acpi_ut_get_object_type_name - (obj_desc), obj_desc)); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - goto next_operand; - - default: - - /* Unknown type */ - - ACPI_ERROR((AE_INFO, - "Internal - Unknown ARGI (required operand) type %X", - this_arg_type)); - - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* - * Make sure that the original object was resolved to the - * required object type (Simple cases only). - */ - status = acpi_ex_check_object_type(type_needed, - ACPI_GET_OBJECT_TYPE - (*stack_ptr), *stack_ptr); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - next_operand: - /* - * If more operands needed, decrement stack_ptr to point - * to next operand on stack - */ - if (GET_CURRENT_ARG_TYPE(arg_types)) { - stack_ptr--; - } - } - - ACPI_DUMP_OPERANDS(walk_state->operands, - acpi_ps_get_opcode_name(opcode), - walk_state->num_operands); - - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/executer/exstore.c b/drivers/acpi/executer/exstore.c deleted file mode 100644 index 6f5647fdc006..000000000000 --- a/drivers/acpi/executer/exstore.c +++ /dev/null @@ -1,716 +0,0 @@ - -/****************************************************************************** - * - * Module Name: exstore - AML Interpreter object store support - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_EXECUTER -ACPI_MODULE_NAME("exstore") - -/* Local prototypes */ -static void -acpi_ex_do_debug_object(union acpi_operand_object *source_desc, - u32 level, u32 index); - -static acpi_status -acpi_ex_store_object_to_index(union acpi_operand_object *val_desc, - union acpi_operand_object *dest_desc, - struct acpi_walk_state *walk_state); - -/******************************************************************************* - * - * FUNCTION: acpi_ex_do_debug_object - * - * PARAMETERS: source_desc - Value to be stored - * Level - Indentation level (used for packages) - * Index - Current package element, zero if not pkg - * - * RETURN: None - * - * DESCRIPTION: Handles stores to the Debug Object. - * - ******************************************************************************/ - -static void -acpi_ex_do_debug_object(union acpi_operand_object *source_desc, - u32 level, u32 index) -{ - u32 i; - - ACPI_FUNCTION_TRACE_PTR(ex_do_debug_object, source_desc); - - /* Print line header as long as we are not in the middle of an object display */ - - if (!((level > 0) && index == 0)) { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[ACPI Debug] %*s", - level, " ")); - } - - /* Display index for package output only */ - - if (index > 0) { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, - "(%.2u) ", index - 1)); - } - - if (!source_desc) { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[Null Object]\n")); - return_VOID; - } - - if (ACPI_GET_DESCRIPTOR_TYPE(source_desc) == ACPI_DESC_TYPE_OPERAND) { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "%s ", - acpi_ut_get_object_type_name - (source_desc))); - - if (!acpi_ut_valid_internal_object(source_desc)) { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, - "%p, Invalid Internal Object!\n", - source_desc)); - return_VOID; - } - } else if (ACPI_GET_DESCRIPTOR_TYPE(source_desc) == - ACPI_DESC_TYPE_NAMED) { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "%s: %p\n", - acpi_ut_get_type_name(((struct - acpi_namespace_node - *)source_desc)-> - type), - source_desc)); - return_VOID; - } else { - return_VOID; - } - - /* source_desc is of type ACPI_DESC_TYPE_OPERAND */ - - switch (ACPI_GET_OBJECT_TYPE(source_desc)) { - case ACPI_TYPE_INTEGER: - - /* Output correct integer width */ - - if (acpi_gbl_integer_byte_width == 4) { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "0x%8.8X\n", - (u32) source_desc->integer. - value)); - } else { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, - "0x%8.8X%8.8X\n", - ACPI_FORMAT_UINT64(source_desc-> - integer. - value))); - } - break; - - case ACPI_TYPE_BUFFER: - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[0x%.2X]\n", - (u32) source_desc->buffer.length)); - ACPI_DUMP_BUFFER(source_desc->buffer.pointer, - (source_desc->buffer.length < - 256) ? source_desc->buffer.length : 256); - break; - - case ACPI_TYPE_STRING: - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[0x%.2X] \"%s\"\n", - source_desc->string.length, - source_desc->string.pointer)); - break; - - case ACPI_TYPE_PACKAGE: - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, - "[Contains 0x%.2X Elements]\n", - source_desc->package.count)); - - /* Output the entire contents of the package */ - - for (i = 0; i < source_desc->package.count; i++) { - acpi_ex_do_debug_object(source_desc->package. - elements[i], level + 4, i + 1); - } - break; - - case ACPI_TYPE_LOCAL_REFERENCE: - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[%s] ", - acpi_ut_get_reference_name(source_desc))); - - /* Decode the reference */ - - switch (source_desc->reference.class) { - case ACPI_REFCLASS_INDEX: - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "0x%X\n", - source_desc->reference.value)); - break; - - case ACPI_REFCLASS_TABLE: - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, - "Table Index 0x%X\n", - source_desc->reference.value)); - break; - - default: - break; - } - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, " ")); - - /* Check for valid node first, then valid object */ - - if (source_desc->reference.node) { - if (ACPI_GET_DESCRIPTOR_TYPE - (source_desc->reference.node) != - ACPI_DESC_TYPE_NAMED) { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, - " %p - Not a valid namespace node\n", - source_desc->reference. - node)); - } else { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, - "Node %p [%4.4s] ", - source_desc->reference. - node, - (source_desc->reference. - node)->name.ascii)); - - switch ((source_desc->reference.node)->type) { - - /* These types have no attached object */ - - case ACPI_TYPE_DEVICE: - acpi_os_printf("Device\n"); - break; - - case ACPI_TYPE_THERMAL: - acpi_os_printf("Thermal Zone\n"); - break; - - default: - acpi_ex_do_debug_object((source_desc-> - reference. - node)->object, - level + 4, 0); - break; - } - } - } else if (source_desc->reference.object) { - if (ACPI_GET_DESCRIPTOR_TYPE - (source_desc->reference.object) == - ACPI_DESC_TYPE_NAMED) { - acpi_ex_do_debug_object(((struct - acpi_namespace_node *) - source_desc->reference. - object)->object, - level + 4, 0); - } else { - acpi_ex_do_debug_object(source_desc->reference. - object, level + 4, 0); - } - } - break; - - default: - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "%p\n", - source_desc)); - break; - } - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, "\n")); - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_store - * - * PARAMETERS: *source_desc - Value to be stored - * *dest_desc - Where to store it. Must be an NS node - * or an union acpi_operand_object of type - * Reference; - * walk_state - Current walk state - * - * RETURN: Status - * - * DESCRIPTION: Store the value described by source_desc into the location - * described by dest_desc. Called by various interpreter - * functions to store the result of an operation into - * the destination operand -- not just simply the actual "Store" - * ASL operator. - * - ******************************************************************************/ - -acpi_status -acpi_ex_store(union acpi_operand_object *source_desc, - union acpi_operand_object *dest_desc, - struct acpi_walk_state *walk_state) -{ - acpi_status status = AE_OK; - union acpi_operand_object *ref_desc = dest_desc; - - ACPI_FUNCTION_TRACE_PTR(ex_store, dest_desc); - - /* Validate parameters */ - - if (!source_desc || !dest_desc) { - ACPI_ERROR((AE_INFO, "Null parameter")); - return_ACPI_STATUS(AE_AML_NO_OPERAND); - } - - /* dest_desc can be either a namespace node or an ACPI object */ - - if (ACPI_GET_DESCRIPTOR_TYPE(dest_desc) == ACPI_DESC_TYPE_NAMED) { - /* - * Dest is a namespace node, - * Storing an object into a Named node. - */ - status = acpi_ex_store_object_to_node(source_desc, - (struct - acpi_namespace_node *) - dest_desc, walk_state, - ACPI_IMPLICIT_CONVERSION); - - return_ACPI_STATUS(status); - } - - /* Destination object must be a Reference or a Constant object */ - - switch (ACPI_GET_OBJECT_TYPE(dest_desc)) { - case ACPI_TYPE_LOCAL_REFERENCE: - break; - - case ACPI_TYPE_INTEGER: - - /* Allow stores to Constants -- a Noop as per ACPI spec */ - - if (dest_desc->common.flags & AOPOBJ_AML_CONSTANT) { - return_ACPI_STATUS(AE_OK); - } - - /*lint -fallthrough */ - - default: - - /* Destination is not a Reference object */ - - ACPI_ERROR((AE_INFO, - "Target is not a Reference or Constant object - %s [%p]", - acpi_ut_get_object_type_name(dest_desc), - dest_desc)); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - - /* - * Examine the Reference class. These cases are handled: - * - * 1) Store to Name (Change the object associated with a name) - * 2) Store to an indexed area of a Buffer or Package - * 3) Store to a Method Local or Arg - * 4) Store to the debug object - */ - switch (ref_desc->reference.class) { - case ACPI_REFCLASS_REFOF: - - /* Storing an object into a Name "container" */ - - status = acpi_ex_store_object_to_node(source_desc, - ref_desc->reference. - object, walk_state, - ACPI_IMPLICIT_CONVERSION); - break; - - case ACPI_REFCLASS_INDEX: - - /* Storing to an Index (pointer into a packager or buffer) */ - - status = - acpi_ex_store_object_to_index(source_desc, ref_desc, - walk_state); - break; - - case ACPI_REFCLASS_LOCAL: - case ACPI_REFCLASS_ARG: - - /* Store to a method local/arg */ - - status = - acpi_ds_store_object_to_local(ref_desc->reference.class, - ref_desc->reference.value, - source_desc, walk_state); - break; - - case ACPI_REFCLASS_DEBUG: - - /* - * Storing to the Debug object causes the value stored to be - * displayed and otherwise has no effect -- see ACPI Specification - */ - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "**** Write to Debug Object: Object %p %s ****:\n\n", - source_desc, - acpi_ut_get_object_type_name(source_desc))); - - acpi_ex_do_debug_object(source_desc, 0, 0); - break; - - default: - - ACPI_ERROR((AE_INFO, "Unknown Reference Class %2.2X", - ref_desc->reference.class)); - ACPI_DUMP_ENTRY(ref_desc, ACPI_LV_INFO); - - status = AE_AML_INTERNAL; - break; - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_store_object_to_index - * - * PARAMETERS: *source_desc - Value to be stored - * *dest_desc - Named object to receive the value - * walk_state - Current walk state - * - * RETURN: Status - * - * DESCRIPTION: Store the object to indexed Buffer or Package element - * - ******************************************************************************/ - -static acpi_status -acpi_ex_store_object_to_index(union acpi_operand_object *source_desc, - union acpi_operand_object *index_desc, - struct acpi_walk_state *walk_state) -{ - acpi_status status = AE_OK; - union acpi_operand_object *obj_desc; - union acpi_operand_object *new_desc; - u8 value = 0; - u32 i; - - ACPI_FUNCTION_TRACE(ex_store_object_to_index); - - /* - * Destination must be a reference pointer, and - * must point to either a buffer or a package - */ - switch (index_desc->reference.target_type) { - case ACPI_TYPE_PACKAGE: - /* - * Storing to a package element. Copy the object and replace - * any existing object with the new object. No implicit - * conversion is performed. - * - * The object at *(index_desc->Reference.Where) is the - * element within the package that is to be modified. - * The parent package object is at index_desc->Reference.Object - */ - obj_desc = *(index_desc->reference.where); - - if (ACPI_GET_OBJECT_TYPE(source_desc) == - ACPI_TYPE_LOCAL_REFERENCE - && source_desc->reference.class == ACPI_REFCLASS_TABLE) { - - /* This is a DDBHandle, just add a reference to it */ - - acpi_ut_add_reference(source_desc); - new_desc = source_desc; - } else { - /* Normal object, copy it */ - - status = - acpi_ut_copy_iobject_to_iobject(source_desc, - &new_desc, - walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - - if (obj_desc) { - - /* Decrement reference count by the ref count of the parent package */ - - for (i = 0; i < ((union acpi_operand_object *) - index_desc->reference.object)->common. - reference_count; i++) { - acpi_ut_remove_reference(obj_desc); - } - } - - *(index_desc->reference.where) = new_desc; - - /* Increment ref count by the ref count of the parent package-1 */ - - for (i = 1; i < ((union acpi_operand_object *) - index_desc->reference.object)->common. - reference_count; i++) { - acpi_ut_add_reference(new_desc); - } - - break; - - case ACPI_TYPE_BUFFER_FIELD: - - /* - * Store into a Buffer or String (not actually a real buffer_field) - * at a location defined by an Index. - * - * The first 8-bit element of the source object is written to the - * 8-bit Buffer location defined by the Index destination object, - * according to the ACPI 2.0 specification. - */ - - /* - * Make sure the target is a Buffer or String. An error should - * not happen here, since the reference_object was constructed - * by the INDEX_OP code. - */ - obj_desc = index_desc->reference.object; - if ((ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_BUFFER) && - (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_STRING)) { - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - - /* - * The assignment of the individual elements will be slightly - * different for each source type. - */ - switch (ACPI_GET_OBJECT_TYPE(source_desc)) { - case ACPI_TYPE_INTEGER: - - /* Use the least-significant byte of the integer */ - - value = (u8) (source_desc->integer.value); - break; - - case ACPI_TYPE_BUFFER: - case ACPI_TYPE_STRING: - - /* Note: Takes advantage of common string/buffer fields */ - - value = source_desc->buffer.pointer[0]; - break; - - default: - - /* All other types are invalid */ - - ACPI_ERROR((AE_INFO, - "Source must be Integer/Buffer/String type, not %s", - acpi_ut_get_object_type_name(source_desc))); - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - - /* Store the source value into the target buffer byte */ - - obj_desc->buffer.pointer[index_desc->reference.value] = value; - break; - - default: - ACPI_ERROR((AE_INFO, "Target is not a Package or BufferField")); - status = AE_AML_OPERAND_TYPE; - break; - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_store_object_to_node - * - * PARAMETERS: source_desc - Value to be stored - * Node - Named object to receive the value - * walk_state - Current walk state - * implicit_conversion - Perform implicit conversion (yes/no) - * - * RETURN: Status - * - * DESCRIPTION: Store the object to the named object. - * - * The Assignment of an object to a named object is handled here - * The value passed in will replace the current value (if any) - * with the input value. - * - * When storing into an object the data is converted to the - * target object type then stored in the object. This means - * that the target object type (for an initialized target) will - * not be changed by a store operation. - * - * Assumes parameters are already validated. - * - ******************************************************************************/ - -acpi_status -acpi_ex_store_object_to_node(union acpi_operand_object *source_desc, - struct acpi_namespace_node *node, - struct acpi_walk_state *walk_state, - u8 implicit_conversion) -{ - acpi_status status = AE_OK; - union acpi_operand_object *target_desc; - union acpi_operand_object *new_desc; - acpi_object_type target_type; - - ACPI_FUNCTION_TRACE_PTR(ex_store_object_to_node, source_desc); - - /* Get current type of the node, and object attached to Node */ - - target_type = acpi_ns_get_type(node); - target_desc = acpi_ns_get_attached_object(node); - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Storing %p(%s) into node %p(%s)\n", - source_desc, - acpi_ut_get_object_type_name(source_desc), node, - acpi_ut_get_type_name(target_type))); - - /* - * Resolve the source object to an actual value - * (If it is a reference object) - */ - status = acpi_ex_resolve_object(&source_desc, target_type, walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* If no implicit conversion, drop into the default case below */ - - if ((!implicit_conversion) || - ((walk_state->opcode == AML_COPY_OP) && - (target_type != ACPI_TYPE_LOCAL_REGION_FIELD) && - (target_type != ACPI_TYPE_LOCAL_BANK_FIELD) && - (target_type != ACPI_TYPE_LOCAL_INDEX_FIELD))) { - /* - * Force execution of default (no implicit conversion). Note: - * copy_object does not perform an implicit conversion, as per the ACPI - * spec -- except in case of region/bank/index fields -- because these - * objects must retain their original type permanently. - */ - target_type = ACPI_TYPE_ANY; - } - - /* Do the actual store operation */ - - switch (target_type) { - case ACPI_TYPE_BUFFER_FIELD: - case ACPI_TYPE_LOCAL_REGION_FIELD: - case ACPI_TYPE_LOCAL_BANK_FIELD: - case ACPI_TYPE_LOCAL_INDEX_FIELD: - - /* For fields, copy the source data to the target field. */ - - status = acpi_ex_write_data_to_field(source_desc, target_desc, - &walk_state->result_obj); - break; - - case ACPI_TYPE_INTEGER: - case ACPI_TYPE_STRING: - case ACPI_TYPE_BUFFER: - - /* - * These target types are all of type Integer/String/Buffer, and - * therefore support implicit conversion before the store. - * - * Copy and/or convert the source object to a new target object - */ - status = - acpi_ex_store_object_to_object(source_desc, target_desc, - &new_desc, walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - if (new_desc != target_desc) { - /* - * Store the new new_desc as the new value of the Name, and set - * the Name's type to that of the value being stored in it. - * source_desc reference count is incremented by attach_object. - * - * Note: This may change the type of the node if an explicit store - * has been performed such that the node/object type has been - * changed. - */ - status = - acpi_ns_attach_object(node, new_desc, - new_desc->common.type); - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Store %s into %s via Convert/Attach\n", - acpi_ut_get_object_type_name - (source_desc), - acpi_ut_get_object_type_name - (new_desc))); - } - break; - - default: - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Storing %s (%p) directly into node (%p) with no implicit conversion\n", - acpi_ut_get_object_type_name(source_desc), - source_desc, node)); - - /* No conversions for all other types. Just attach the source object */ - - status = acpi_ns_attach_object(node, source_desc, - ACPI_GET_OBJECT_TYPE - (source_desc)); - break; - } - - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/executer/exstoren.c b/drivers/acpi/executer/exstoren.c deleted file mode 100644 index ad2047afa463..000000000000 --- a/drivers/acpi/executer/exstoren.c +++ /dev/null @@ -1,304 +0,0 @@ - -/****************************************************************************** - * - * Module Name: exstoren - AML Interpreter object store support, - * Store to Node (namespace object) - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include - -#define _COMPONENT ACPI_EXECUTER -ACPI_MODULE_NAME("exstoren") - -/******************************************************************************* - * - * FUNCTION: acpi_ex_resolve_object - * - * PARAMETERS: source_desc_ptr - Pointer to the source object - * target_type - Current type of the target - * walk_state - Current walk state - * - * RETURN: Status, resolved object in source_desc_ptr. - * - * DESCRIPTION: Resolve an object. If the object is a reference, dereference - * it and return the actual object in the source_desc_ptr. - * - ******************************************************************************/ -acpi_status -acpi_ex_resolve_object(union acpi_operand_object **source_desc_ptr, - acpi_object_type target_type, - struct acpi_walk_state *walk_state) -{ - union acpi_operand_object *source_desc = *source_desc_ptr; - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(ex_resolve_object); - - /* Ensure we have a Target that can be stored to */ - - switch (target_type) { - case ACPI_TYPE_BUFFER_FIELD: - case ACPI_TYPE_LOCAL_REGION_FIELD: - case ACPI_TYPE_LOCAL_BANK_FIELD: - case ACPI_TYPE_LOCAL_INDEX_FIELD: - /* - * These cases all require only Integers or values that - * can be converted to Integers (Strings or Buffers) - */ - - case ACPI_TYPE_INTEGER: - case ACPI_TYPE_STRING: - case ACPI_TYPE_BUFFER: - - /* - * Stores into a Field/Region or into a Integer/Buffer/String - * are all essentially the same. This case handles the - * "interchangeable" types Integer, String, and Buffer. - */ - if (ACPI_GET_OBJECT_TYPE(source_desc) == - ACPI_TYPE_LOCAL_REFERENCE) { - - /* Resolve a reference object first */ - - status = - acpi_ex_resolve_to_value(source_desc_ptr, - walk_state); - if (ACPI_FAILURE(status)) { - break; - } - } - - /* For copy_object, no further validation necessary */ - - if (walk_state->opcode == AML_COPY_OP) { - break; - } - - /* Must have a Integer, Buffer, or String */ - - if ((ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_INTEGER) && - (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_BUFFER) && - (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_STRING) && - !((ACPI_GET_OBJECT_TYPE(source_desc) == - ACPI_TYPE_LOCAL_REFERENCE) - && (source_desc->reference.class == - ACPI_REFCLASS_TABLE))) { - - /* Conversion successful but still not a valid type */ - - ACPI_ERROR((AE_INFO, - "Cannot assign type %s to %s (must be type Int/Str/Buf)", - acpi_ut_get_object_type_name(source_desc), - acpi_ut_get_type_name(target_type))); - status = AE_AML_OPERAND_TYPE; - } - break; - - case ACPI_TYPE_LOCAL_ALIAS: - case ACPI_TYPE_LOCAL_METHOD_ALIAS: - - /* - * All aliases should have been resolved earlier, during the - * operand resolution phase. - */ - ACPI_ERROR((AE_INFO, "Store into an unresolved Alias object")); - status = AE_AML_INTERNAL; - break; - - case ACPI_TYPE_PACKAGE: - default: - - /* - * All other types than Alias and the various Fields come here, - * including the untyped case - ACPI_TYPE_ANY. - */ - break; - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_store_object_to_object - * - * PARAMETERS: source_desc - Object to store - * dest_desc - Object to receive a copy of the source - * new_desc - New object if dest_desc is obsoleted - * walk_state - Current walk state - * - * RETURN: Status - * - * DESCRIPTION: "Store" an object to another object. This may include - * converting the source type to the target type (implicit - * conversion), and a copy of the value of the source to - * the target. - * - * The Assignment of an object to another (not named) object - * is handled here. - * The Source passed in will replace the current value (if any) - * with the input value. - * - * When storing into an object the data is converted to the - * target object type then stored in the object. This means - * that the target object type (for an initialized target) will - * not be changed by a store operation. - * - * This module allows destination types of Number, String, - * Buffer, and Package. - * - * Assumes parameters are already validated. NOTE: source_desc - * resolution (from a reference object) must be performed by - * the caller if necessary. - * - ******************************************************************************/ - -acpi_status -acpi_ex_store_object_to_object(union acpi_operand_object *source_desc, - union acpi_operand_object *dest_desc, - union acpi_operand_object **new_desc, - struct acpi_walk_state *walk_state) -{ - union acpi_operand_object *actual_src_desc; - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE_PTR(ex_store_object_to_object, source_desc); - - actual_src_desc = source_desc; - if (!dest_desc) { - /* - * There is no destination object (An uninitialized node or - * package element), so we can simply copy the source object - * creating a new destination object - */ - status = - acpi_ut_copy_iobject_to_iobject(actual_src_desc, new_desc, - walk_state); - return_ACPI_STATUS(status); - } - - if (ACPI_GET_OBJECT_TYPE(source_desc) != - ACPI_GET_OBJECT_TYPE(dest_desc)) { - /* - * The source type does not match the type of the destination. - * Perform the "implicit conversion" of the source to the current type - * of the target as per the ACPI specification. - * - * If no conversion performed, actual_src_desc = source_desc. - * Otherwise, actual_src_desc is a temporary object to hold the - * converted object. - */ - status = - acpi_ex_convert_to_target_type(ACPI_GET_OBJECT_TYPE - (dest_desc), source_desc, - &actual_src_desc, - walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - if (source_desc == actual_src_desc) { - /* - * No conversion was performed. Return the source_desc as the - * new object. - */ - *new_desc = source_desc; - return_ACPI_STATUS(AE_OK); - } - } - - /* - * We now have two objects of identical types, and we can perform a - * copy of the *value* of the source object. - */ - switch (ACPI_GET_OBJECT_TYPE(dest_desc)) { - case ACPI_TYPE_INTEGER: - - dest_desc->integer.value = actual_src_desc->integer.value; - - /* Truncate value if we are executing from a 32-bit ACPI table */ - - acpi_ex_truncate_for32bit_table(dest_desc); - break; - - case ACPI_TYPE_STRING: - - status = - acpi_ex_store_string_to_string(actual_src_desc, dest_desc); - break; - - case ACPI_TYPE_BUFFER: - - status = - acpi_ex_store_buffer_to_buffer(actual_src_desc, dest_desc); - break; - - case ACPI_TYPE_PACKAGE: - - status = - acpi_ut_copy_iobject_to_iobject(actual_src_desc, &dest_desc, - walk_state); - break; - - default: - /* - * All other types come here. - */ - ACPI_WARNING((AE_INFO, "Store into type %s not implemented", - acpi_ut_get_object_type_name(dest_desc))); - - status = AE_NOT_IMPLEMENTED; - break; - } - - if (actual_src_desc != source_desc) { - - /* Delete the intermediate (temporary) source object */ - - acpi_ut_remove_reference(actual_src_desc); - } - - *new_desc = dest_desc; - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/executer/exstorob.c b/drivers/acpi/executer/exstorob.c deleted file mode 100644 index a48d580d71c2..000000000000 --- a/drivers/acpi/executer/exstorob.c +++ /dev/null @@ -1,209 +0,0 @@ - -/****************************************************************************** - * - * Module Name: exstorob - AML Interpreter object store support, store to object - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_EXECUTER -ACPI_MODULE_NAME("exstorob") - -/******************************************************************************* - * - * FUNCTION: acpi_ex_store_buffer_to_buffer - * - * PARAMETERS: source_desc - Source object to copy - * target_desc - Destination object of the copy - * - * RETURN: Status - * - * DESCRIPTION: Copy a buffer object to another buffer object. - * - ******************************************************************************/ -acpi_status -acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc, - union acpi_operand_object *target_desc) -{ - u32 length; - u8 *buffer; - - ACPI_FUNCTION_TRACE_PTR(ex_store_buffer_to_buffer, source_desc); - - /* We know that source_desc is a buffer by now */ - - buffer = ACPI_CAST_PTR(u8, source_desc->buffer.pointer); - length = source_desc->buffer.length; - - /* - * If target is a buffer of length zero or is a static buffer, - * allocate a new buffer of the proper length - */ - if ((target_desc->buffer.length == 0) || - (target_desc->common.flags & AOPOBJ_STATIC_POINTER)) { - target_desc->buffer.pointer = ACPI_ALLOCATE(length); - if (!target_desc->buffer.pointer) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - target_desc->buffer.length = length; - } - - /* Copy source buffer to target buffer */ - - if (length <= target_desc->buffer.length) { - - /* Clear existing buffer and copy in the new one */ - - ACPI_MEMSET(target_desc->buffer.pointer, 0, - target_desc->buffer.length); - ACPI_MEMCPY(target_desc->buffer.pointer, buffer, length); - -#ifdef ACPI_OBSOLETE_BEHAVIOR - /* - * NOTE: ACPI versions up to 3.0 specified that the buffer must be - * truncated if the string is smaller than the buffer. However, "other" - * implementations of ACPI never did this and thus became the defacto - * standard. ACPI 3.0_a changes this behavior such that the buffer - * is no longer truncated. - */ - - /* - * OBSOLETE BEHAVIOR: - * If the original source was a string, we must truncate the buffer, - * according to the ACPI spec. Integer-to-Buffer and Buffer-to-Buffer - * copy must not truncate the original buffer. - */ - if (original_src_type == ACPI_TYPE_STRING) { - - /* Set the new length of the target */ - - target_desc->buffer.length = length; - } -#endif - } else { - /* Truncate the source, copy only what will fit */ - - ACPI_MEMCPY(target_desc->buffer.pointer, buffer, - target_desc->buffer.length); - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Truncating source buffer from %X to %X\n", - length, target_desc->buffer.length)); - } - - /* Copy flags */ - - target_desc->buffer.flags = source_desc->buffer.flags; - target_desc->common.flags &= ~AOPOBJ_STATIC_POINTER; - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_store_string_to_string - * - * PARAMETERS: source_desc - Source object to copy - * target_desc - Destination object of the copy - * - * RETURN: Status - * - * DESCRIPTION: Copy a String object to another String object - * - ******************************************************************************/ - -acpi_status -acpi_ex_store_string_to_string(union acpi_operand_object *source_desc, - union acpi_operand_object *target_desc) -{ - u32 length; - u8 *buffer; - - ACPI_FUNCTION_TRACE_PTR(ex_store_string_to_string, source_desc); - - /* We know that source_desc is a string by now */ - - buffer = ACPI_CAST_PTR(u8, source_desc->string.pointer); - length = source_desc->string.length; - - /* - * Replace existing string value if it will fit and the string - * pointer is not a static pointer (part of an ACPI table) - */ - if ((length < target_desc->string.length) && - (!(target_desc->common.flags & AOPOBJ_STATIC_POINTER))) { - /* - * String will fit in existing non-static buffer. - * Clear old string and copy in the new one - */ - ACPI_MEMSET(target_desc->string.pointer, 0, - (acpi_size) target_desc->string.length + 1); - ACPI_MEMCPY(target_desc->string.pointer, buffer, length); - } else { - /* - * Free the current buffer, then allocate a new buffer - * large enough to hold the value - */ - if (target_desc->string.pointer && - (!(target_desc->common.flags & AOPOBJ_STATIC_POINTER))) { - - /* Only free if not a pointer into the DSDT */ - - ACPI_FREE(target_desc->string.pointer); - } - - target_desc->string.pointer = ACPI_ALLOCATE_ZEROED((acpi_size) - length + 1); - if (!target_desc->string.pointer) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - target_desc->common.flags &= ~AOPOBJ_STATIC_POINTER; - ACPI_MEMCPY(target_desc->string.pointer, buffer, length); - } - - /* Set the new target length */ - - target_desc->string.length = length; - return_ACPI_STATUS(AE_OK); -} diff --git a/drivers/acpi/executer/exsystem.c b/drivers/acpi/executer/exsystem.c deleted file mode 100644 index a25b2c576eb1..000000000000 --- a/drivers/acpi/executer/exsystem.c +++ /dev/null @@ -1,303 +0,0 @@ - -/****************************************************************************** - * - * Module Name: exsystem - Interface to OS services - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_EXECUTER -ACPI_MODULE_NAME("exsystem") - -/******************************************************************************* - * - * FUNCTION: acpi_ex_system_wait_semaphore - * - * PARAMETERS: Semaphore - Semaphore to wait on - * Timeout - Max time to wait - * - * RETURN: Status - * - * DESCRIPTION: Implements a semaphore wait with a check to see if the - * semaphore is available immediately. If it is not, the - * interpreter is released before waiting. - * - ******************************************************************************/ -acpi_status acpi_ex_system_wait_semaphore(acpi_semaphore semaphore, u16 timeout) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ex_system_wait_semaphore); - - status = acpi_os_wait_semaphore(semaphore, 1, ACPI_DO_NOT_WAIT); - if (ACPI_SUCCESS(status)) { - return_ACPI_STATUS(status); - } - - if (status == AE_TIME) { - - /* We must wait, so unlock the interpreter */ - - acpi_ex_relinquish_interpreter(); - - status = acpi_os_wait_semaphore(semaphore, 1, timeout); - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "*** Thread awake after blocking, %s\n", - acpi_format_exception(status))); - - /* Reacquire the interpreter */ - - acpi_ex_reacquire_interpreter(); - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_system_wait_mutex - * - * PARAMETERS: Mutex - Mutex to wait on - * Timeout - Max time to wait - * - * RETURN: Status - * - * DESCRIPTION: Implements a mutex wait with a check to see if the - * mutex is available immediately. If it is not, the - * interpreter is released before waiting. - * - ******************************************************************************/ - -acpi_status acpi_ex_system_wait_mutex(acpi_mutex mutex, u16 timeout) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ex_system_wait_mutex); - - status = acpi_os_acquire_mutex(mutex, ACPI_DO_NOT_WAIT); - if (ACPI_SUCCESS(status)) { - return_ACPI_STATUS(status); - } - - if (status == AE_TIME) { - - /* We must wait, so unlock the interpreter */ - - acpi_ex_relinquish_interpreter(); - - status = acpi_os_acquire_mutex(mutex, timeout); - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "*** Thread awake after blocking, %s\n", - acpi_format_exception(status))); - - /* Reacquire the interpreter */ - - acpi_ex_reacquire_interpreter(); - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_system_do_stall - * - * PARAMETERS: how_long - The amount of time to stall, - * in microseconds - * - * RETURN: Status - * - * DESCRIPTION: Suspend running thread for specified amount of time. - * Note: ACPI specification requires that Stall() does not - * relinquish the processor, and delays longer than 100 usec - * should use Sleep() instead. We allow stalls up to 255 usec - * for compatibility with other interpreters and existing BIOSs. - * - ******************************************************************************/ - -acpi_status acpi_ex_system_do_stall(u32 how_long) -{ - acpi_status status = AE_OK; - - ACPI_FUNCTION_ENTRY(); - - if (how_long > 255) { /* 255 microseconds */ - /* - * Longer than 255 usec, this is an error - * - * (ACPI specifies 100 usec as max, but this gives some slack in - * order to support existing BIOSs) - */ - ACPI_ERROR((AE_INFO, "Time parameter is too large (%d)", - how_long)); - status = AE_AML_OPERAND_VALUE; - } else { - acpi_os_stall(how_long); - } - - return (status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_system_do_suspend - * - * PARAMETERS: how_long - The amount of time to suspend, - * in milliseconds - * - * RETURN: None - * - * DESCRIPTION: Suspend running thread for specified amount of time. - * - ******************************************************************************/ - -acpi_status acpi_ex_system_do_suspend(acpi_integer how_long) -{ - ACPI_FUNCTION_ENTRY(); - - /* Since this thread will sleep, we must release the interpreter */ - - acpi_ex_relinquish_interpreter(); - - acpi_os_sleep(how_long); - - /* And now we must get the interpreter again */ - - acpi_ex_reacquire_interpreter(); - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_system_signal_event - * - * PARAMETERS: obj_desc - The object descriptor for this op - * - * RETURN: Status - * - * DESCRIPTION: Provides an access point to perform synchronization operations - * within the AML. - * - ******************************************************************************/ - -acpi_status acpi_ex_system_signal_event(union acpi_operand_object * obj_desc) -{ - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(ex_system_signal_event); - - if (obj_desc) { - status = - acpi_os_signal_semaphore(obj_desc->event.os_semaphore, 1); - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_system_wait_event - * - * PARAMETERS: time_desc - The 'time to delay' object descriptor - * obj_desc - The object descriptor for this op - * - * RETURN: Status - * - * DESCRIPTION: Provides an access point to perform synchronization operations - * within the AML. This operation is a request to wait for an - * event. - * - ******************************************************************************/ - -acpi_status -acpi_ex_system_wait_event(union acpi_operand_object *time_desc, - union acpi_operand_object *obj_desc) -{ - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(ex_system_wait_event); - - if (obj_desc) { - status = - acpi_ex_system_wait_semaphore(obj_desc->event.os_semaphore, - (u16) time_desc->integer. - value); - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_system_reset_event - * - * PARAMETERS: obj_desc - The object descriptor for this op - * - * RETURN: Status - * - * DESCRIPTION: Reset an event to a known state. - * - ******************************************************************************/ - -acpi_status acpi_ex_system_reset_event(union acpi_operand_object *obj_desc) -{ - acpi_status status = AE_OK; - acpi_semaphore temp_semaphore; - - ACPI_FUNCTION_ENTRY(); - - /* - * We are going to simply delete the existing semaphore and - * create a new one! - */ - status = - acpi_os_create_semaphore(ACPI_NO_UNIT_LIMIT, 0, &temp_semaphore); - if (ACPI_SUCCESS(status)) { - (void)acpi_os_delete_semaphore(obj_desc->event.os_semaphore); - obj_desc->event.os_semaphore = temp_semaphore; - } - - return (status); -} diff --git a/drivers/acpi/executer/exutils.c b/drivers/acpi/executer/exutils.c deleted file mode 100644 index 0ecdb70c4980..000000000000 --- a/drivers/acpi/executer/exutils.c +++ /dev/null @@ -1,421 +0,0 @@ - -/****************************************************************************** - * - * Module Name: exutils - interpreter/scanner utilities - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -/* - * DEFINE_AML_GLOBALS is tested in amlcode.h - * to determine whether certain global names should be "defined" or only - * "declared" in the current compilation. This enhances maintainability - * by enabling a single header file to embody all knowledge of the names - * in question. - * - * Exactly one module of any executable should #define DEFINE_GLOBALS - * before #including the header files which use this convention. The - * names in question will be defined and initialized in that module, - * and declared as extern in all other modules which #include those - * header files. - */ - -#define DEFINE_AML_GLOBALS - -#include -#include -#include -#include - -#define _COMPONENT ACPI_EXECUTER -ACPI_MODULE_NAME("exutils") - -/* Local prototypes */ -static u32 acpi_ex_digits_needed(acpi_integer value, u32 base); - -#ifndef ACPI_NO_METHOD_EXECUTION -/******************************************************************************* - * - * FUNCTION: acpi_ex_enter_interpreter - * - * PARAMETERS: None - * - * RETURN: None - * - * DESCRIPTION: Enter the interpreter execution region. Failure to enter - * the interpreter region is a fatal system error. Used in - * conjunction with exit_interpreter. - * - ******************************************************************************/ - -void acpi_ex_enter_interpreter(void) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ex_enter_interpreter); - - status = acpi_ut_acquire_mutex(ACPI_MTX_INTERPRETER); - if (ACPI_FAILURE(status)) { - ACPI_ERROR((AE_INFO, - "Could not acquire AML Interpreter mutex")); - } - - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_reacquire_interpreter - * - * PARAMETERS: None - * - * RETURN: None - * - * DESCRIPTION: Reacquire the interpreter execution region from within the - * interpreter code. Failure to enter the interpreter region is a - * fatal system error. Used in conjuction with - * relinquish_interpreter - * - ******************************************************************************/ - -void acpi_ex_reacquire_interpreter(void) -{ - ACPI_FUNCTION_TRACE(ex_reacquire_interpreter); - - /* - * If the global serialized flag is set, do not release the interpreter, - * since it was not actually released by acpi_ex_relinquish_interpreter. - * This forces the interpreter to be single threaded. - */ - if (!acpi_gbl_all_methods_serialized) { - acpi_ex_enter_interpreter(); - } - - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_exit_interpreter - * - * PARAMETERS: None - * - * RETURN: None - * - * DESCRIPTION: Exit the interpreter execution region. This is the top level - * routine used to exit the interpreter when all processing has - * been completed. - * - ******************************************************************************/ - -void acpi_ex_exit_interpreter(void) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ex_exit_interpreter); - - status = acpi_ut_release_mutex(ACPI_MTX_INTERPRETER); - if (ACPI_FAILURE(status)) { - ACPI_ERROR((AE_INFO, - "Could not release AML Interpreter mutex")); - } - - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_relinquish_interpreter - * - * PARAMETERS: None - * - * RETURN: None - * - * DESCRIPTION: Exit the interpreter execution region, from within the - * interpreter - before attempting an operation that will possibly - * block the running thread. - * - * Cases where the interpreter is unlocked internally - * 1) Method to be blocked on a Sleep() AML opcode - * 2) Method to be blocked on an Acquire() AML opcode - * 3) Method to be blocked on a Wait() AML opcode - * 4) Method to be blocked to acquire the global lock - * 5) Method to be blocked waiting to execute a serialized control method - * that is currently executing - * 6) About to invoke a user-installed opregion handler - * - ******************************************************************************/ - -void acpi_ex_relinquish_interpreter(void) -{ - ACPI_FUNCTION_TRACE(ex_relinquish_interpreter); - - /* - * If the global serialized flag is set, do not release the interpreter. - * This forces the interpreter to be single threaded. - */ - if (!acpi_gbl_all_methods_serialized) { - acpi_ex_exit_interpreter(); - } - - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_truncate_for32bit_table - * - * PARAMETERS: obj_desc - Object to be truncated - * - * RETURN: none - * - * DESCRIPTION: Truncate an ACPI Integer to 32 bits if the execution mode is - * 32-bit, as determined by the revision of the DSDT. - * - ******************************************************************************/ - -void acpi_ex_truncate_for32bit_table(union acpi_operand_object *obj_desc) -{ - - ACPI_FUNCTION_ENTRY(); - - /* - * Object must be a valid number and we must be executing - * a control method. NS node could be there for AML_INT_NAMEPATH_OP. - */ - if ((!obj_desc) || - (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != ACPI_DESC_TYPE_OPERAND) || - (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_INTEGER)) { - return; - } - - if (acpi_gbl_integer_byte_width == 4) { - /* - * We are running a method that exists in a 32-bit ACPI table. - * Truncate the value to 32 bits by zeroing out the upper 32-bit field - */ - obj_desc->integer.value &= (acpi_integer) ACPI_UINT32_MAX; - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_acquire_global_lock - * - * PARAMETERS: field_flags - Flags with Lock rule: - * always_lock or never_lock - * - * RETURN: None - * - * DESCRIPTION: Obtain the ACPI hardware Global Lock, only if the field - * flags specifiy that it is to be obtained before field access. - * - ******************************************************************************/ - -void acpi_ex_acquire_global_lock(u32 field_flags) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ex_acquire_global_lock); - - /* Only use the lock if the always_lock bit is set */ - - if (!(field_flags & AML_FIELD_LOCK_RULE_MASK)) { - return_VOID; - } - - /* Attempt to get the global lock, wait forever */ - - status = acpi_ex_acquire_mutex_object(ACPI_WAIT_FOREVER, - acpi_gbl_global_lock_mutex, - acpi_os_get_thread_id()); - - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "Could not acquire Global Lock")); - } - - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_release_global_lock - * - * PARAMETERS: field_flags - Flags with Lock rule: - * always_lock or never_lock - * - * RETURN: None - * - * DESCRIPTION: Release the ACPI hardware Global Lock - * - ******************************************************************************/ - -void acpi_ex_release_global_lock(u32 field_flags) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ex_release_global_lock); - - /* Only use the lock if the always_lock bit is set */ - - if (!(field_flags & AML_FIELD_LOCK_RULE_MASK)) { - return_VOID; - } - - /* Release the global lock */ - - status = acpi_ex_release_mutex_object(acpi_gbl_global_lock_mutex); - if (ACPI_FAILURE(status)) { - - /* Report the error, but there isn't much else we can do */ - - ACPI_EXCEPTION((AE_INFO, status, - "Could not release Global Lock")); - } - - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_digits_needed - * - * PARAMETERS: Value - Value to be represented - * Base - Base of representation - * - * RETURN: The number of digits. - * - * DESCRIPTION: Calculate the number of digits needed to represent the Value - * in the given Base (Radix) - * - ******************************************************************************/ - -static u32 acpi_ex_digits_needed(acpi_integer value, u32 base) -{ - u32 num_digits; - acpi_integer current_value; - - ACPI_FUNCTION_TRACE(ex_digits_needed); - - /* acpi_integer is unsigned, so we don't worry about a '-' prefix */ - - if (value == 0) { - return_UINT32(1); - } - - current_value = value; - num_digits = 0; - - /* Count the digits in the requested base */ - - while (current_value) { - (void)acpi_ut_short_divide(current_value, base, ¤t_value, - NULL); - num_digits++; - } - - return_UINT32(num_digits); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_eisa_id_to_string - * - * PARAMETERS: numeric_id - EISA ID to be converted - * out_string - Where to put the converted string (8 bytes) - * - * RETURN: None - * - * DESCRIPTION: Convert a numeric EISA ID to string representation - * - ******************************************************************************/ - -void acpi_ex_eisa_id_to_string(u32 numeric_id, char *out_string) -{ - u32 eisa_id; - - ACPI_FUNCTION_ENTRY(); - - /* Swap ID to big-endian to get contiguous bits */ - - eisa_id = acpi_ut_dword_byte_swap(numeric_id); - - out_string[0] = (char)('@' + (((unsigned long)eisa_id >> 26) & 0x1f)); - out_string[1] = (char)('@' + ((eisa_id >> 21) & 0x1f)); - out_string[2] = (char)('@' + ((eisa_id >> 16) & 0x1f)); - out_string[3] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 12); - out_string[4] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 8); - out_string[5] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 4); - out_string[6] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 0); - out_string[7] = 0; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_unsigned_integer_to_string - * - * PARAMETERS: Value - Value to be converted - * out_string - Where to put the converted string (8 bytes) - * - * RETURN: None, string - * - * DESCRIPTION: Convert a number to string representation. Assumes string - * buffer is large enough to hold the string. - * - ******************************************************************************/ - -void acpi_ex_unsigned_integer_to_string(acpi_integer value, char *out_string) -{ - u32 count; - u32 digits_needed; - u32 remainder; - - ACPI_FUNCTION_ENTRY(); - - digits_needed = acpi_ex_digits_needed(value, 10); - out_string[digits_needed] = 0; - - for (count = digits_needed; count > 0; count--) { - (void)acpi_ut_short_divide(value, 10, &value, &remainder); - out_string[count - 1] = (char)('0' + remainder); - } -} - -#endif diff --git a/drivers/acpi/hardware/Makefile b/drivers/acpi/hardware/Makefile deleted file mode 100644 index 238fbe513b82..000000000000 --- a/drivers/acpi/hardware/Makefile +++ /dev/null @@ -1,9 +0,0 @@ -# -# Makefile for all Linux ACPI interpreter subdirectories -# - -obj-y := hwacpi.o hwgpe.o hwregs.o hwsleep.o hwxface.o - -obj-$(ACPI_FUTURE_USAGE) += hwtimer.o - -EXTRA_CFLAGS += $(ACPI_CFLAGS) diff --git a/drivers/acpi/hardware/hwacpi.c b/drivers/acpi/hardware/hwacpi.c deleted file mode 100644 index c76e3cd7e749..000000000000 --- a/drivers/acpi/hardware/hwacpi.c +++ /dev/null @@ -1,185 +0,0 @@ - -/****************************************************************************** - * - * Module Name: hwacpi - ACPI Hardware Initialization/Mode Interface - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include - -#define _COMPONENT ACPI_HARDWARE -ACPI_MODULE_NAME("hwacpi") - -/****************************************************************************** - * - * FUNCTION: acpi_hw_set_mode - * - * PARAMETERS: Mode - SYS_MODE_ACPI or SYS_MODE_LEGACY - * - * RETURN: Status - * - * DESCRIPTION: Transitions the system into the requested mode. - * - ******************************************************************************/ -acpi_status acpi_hw_set_mode(u32 mode) -{ - - acpi_status status; - u32 retry; - - ACPI_FUNCTION_TRACE(hw_set_mode); - - /* - * ACPI 2.0 clarified that if SMI_CMD in FADT is zero, - * system does not support mode transition. - */ - if (!acpi_gbl_FADT.smi_command) { - ACPI_ERROR((AE_INFO, - "No SMI_CMD in FADT, mode transition failed")); - return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE); - } - - /* - * ACPI 2.0 clarified the meaning of ACPI_ENABLE and ACPI_DISABLE - * in FADT: If it is zero, enabling or disabling is not supported. - * As old systems may have used zero for mode transition, - * we make sure both the numbers are zero to determine these - * transitions are not supported. - */ - if (!acpi_gbl_FADT.acpi_enable && !acpi_gbl_FADT.acpi_disable) { - ACPI_ERROR((AE_INFO, - "No ACPI mode transition supported in this system (enable/disable both zero)")); - return_ACPI_STATUS(AE_OK); - } - - switch (mode) { - case ACPI_SYS_MODE_ACPI: - - /* BIOS should have disabled ALL fixed and GP events */ - - status = acpi_os_write_port(acpi_gbl_FADT.smi_command, - (u32) acpi_gbl_FADT.acpi_enable, 8); - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Attempting to enable ACPI mode\n")); - break; - - case ACPI_SYS_MODE_LEGACY: - - /* - * BIOS should clear all fixed status bits and restore fixed event - * enable bits to default - */ - status = acpi_os_write_port(acpi_gbl_FADT.smi_command, - (u32) acpi_gbl_FADT.acpi_disable, - 8); - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Attempting to enable Legacy (non-ACPI) mode\n")); - break; - - default: - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "Could not write ACPI mode change")); - return_ACPI_STATUS(status); - } - - /* - * Some hardware takes a LONG time to switch modes. Give them 3 sec to - * do so, but allow faster systems to proceed more quickly. - */ - retry = 3000; - while (retry) { - if (acpi_hw_get_mode() == mode) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Mode %X successfully enabled\n", - mode)); - return_ACPI_STATUS(AE_OK); - } - acpi_os_stall(1000); - retry--; - } - - ACPI_ERROR((AE_INFO, "Hardware did not change modes")); - return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE); -} - -/******************************************************************************* - * - * FUNCTION: acpi_hw_get_mode - * - * PARAMETERS: none - * - * RETURN: SYS_MODE_ACPI or SYS_MODE_LEGACY - * - * DESCRIPTION: Return current operating state of system. Determined by - * querying the SCI_EN bit. - * - ******************************************************************************/ - -u32 acpi_hw_get_mode(void) -{ - acpi_status status; - u32 value; - - ACPI_FUNCTION_TRACE(hw_get_mode); - - /* - * ACPI 2.0 clarified that if SMI_CMD in FADT is zero, - * system does not support mode transition. - */ - if (!acpi_gbl_FADT.smi_command) { - return_UINT32(ACPI_SYS_MODE_ACPI); - } - - status = acpi_get_register(ACPI_BITREG_SCI_ENABLE, &value); - if (ACPI_FAILURE(status)) { - return_UINT32(ACPI_SYS_MODE_LEGACY); - } - - if (value) { - return_UINT32(ACPI_SYS_MODE_ACPI); - } else { - return_UINT32(ACPI_SYS_MODE_LEGACY); - } -} diff --git a/drivers/acpi/hardware/hwgpe.c b/drivers/acpi/hardware/hwgpe.c deleted file mode 100644 index 2b4a85a839d1..000000000000 --- a/drivers/acpi/hardware/hwgpe.c +++ /dev/null @@ -1,469 +0,0 @@ - -/****************************************************************************** - * - * Module Name: hwgpe - Low level GPE enable/disable/clear functions - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_HARDWARE -ACPI_MODULE_NAME("hwgpe") - -/* Local prototypes */ -static acpi_status -acpi_hw_enable_wakeup_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, - struct acpi_gpe_block_info *gpe_block, - void *context); - -/****************************************************************************** - * - * FUNCTION: acpi_hw_low_disable_gpe - * - * PARAMETERS: gpe_event_info - Info block for the GPE to be disabled - * - * RETURN: Status - * - * DESCRIPTION: Disable a single GPE in the enable register. - * - ******************************************************************************/ - -acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info) -{ - struct acpi_gpe_register_info *gpe_register_info; - acpi_status status; - u32 enable_mask; - - /* Get the info block for the entire GPE register */ - - gpe_register_info = gpe_event_info->register_info; - if (!gpe_register_info) { - return (AE_NOT_EXIST); - } - - /* Get current value of the enable register that contains this GPE */ - - status = acpi_read(&enable_mask, &gpe_register_info->enable_address); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* Clear just the bit that corresponds to this GPE */ - - ACPI_CLEAR_BIT(enable_mask, - ((u32) 1 << - (gpe_event_info->gpe_number - - gpe_register_info->base_gpe_number))); - - /* Write the updated enable mask */ - - status = acpi_write(enable_mask, &gpe_register_info->enable_address); - return (status); -} - -/****************************************************************************** - * - * FUNCTION: acpi_hw_write_gpe_enable_reg - * - * PARAMETERS: gpe_event_info - Info block for the GPE to be enabled - * - * RETURN: Status - * - * DESCRIPTION: Write a GPE enable register. Note: The bit for this GPE must - * already be cleared or set in the parent register - * enable_for_run mask. - * - ******************************************************************************/ - -acpi_status -acpi_hw_write_gpe_enable_reg(struct acpi_gpe_event_info * gpe_event_info) -{ - struct acpi_gpe_register_info *gpe_register_info; - acpi_status status; - - ACPI_FUNCTION_ENTRY(); - - /* Get the info block for the entire GPE register */ - - gpe_register_info = gpe_event_info->register_info; - if (!gpe_register_info) { - return (AE_NOT_EXIST); - } - - /* Write the entire GPE (runtime) enable register */ - - status = acpi_write(gpe_register_info->enable_for_run, - &gpe_register_info->enable_address); - - return (status); -} - -/****************************************************************************** - * - * FUNCTION: acpi_hw_clear_gpe - * - * PARAMETERS: gpe_event_info - Info block for the GPE to be cleared - * - * RETURN: Status - * - * DESCRIPTION: Clear the status bit for a single GPE. - * - ******************************************************************************/ - -acpi_status acpi_hw_clear_gpe(struct acpi_gpe_event_info * gpe_event_info) -{ - acpi_status status; - u8 register_bit; - - ACPI_FUNCTION_ENTRY(); - - register_bit = (u8) - (1 << - (gpe_event_info->gpe_number - - gpe_event_info->register_info->base_gpe_number)); - - /* - * Write a one to the appropriate bit in the status register to - * clear this GPE. - */ - status = acpi_write(register_bit, - &gpe_event_info->register_info->status_address); - - return (status); -} - -/****************************************************************************** - * - * FUNCTION: acpi_hw_get_gpe_status - * - * PARAMETERS: gpe_event_info - Info block for the GPE to queried - * event_status - Where the GPE status is returned - * - * RETURN: Status - * - * DESCRIPTION: Return the status of a single GPE. - * - ******************************************************************************/ - -acpi_status -acpi_hw_get_gpe_status(struct acpi_gpe_event_info * gpe_event_info, - acpi_event_status * event_status) -{ - u32 in_byte; - u8 register_bit; - struct acpi_gpe_register_info *gpe_register_info; - acpi_status status; - acpi_event_status local_event_status = 0; - - ACPI_FUNCTION_ENTRY(); - - if (!event_status) { - return (AE_BAD_PARAMETER); - } - - /* Get the info block for the entire GPE register */ - - gpe_register_info = gpe_event_info->register_info; - - /* Get the register bitmask for this GPE */ - - register_bit = (u8) - (1 << - (gpe_event_info->gpe_number - - gpe_event_info->register_info->base_gpe_number)); - - /* GPE currently enabled? (enabled for runtime?) */ - - if (register_bit & gpe_register_info->enable_for_run) { - local_event_status |= ACPI_EVENT_FLAG_ENABLED; - } - - /* GPE enabled for wake? */ - - if (register_bit & gpe_register_info->enable_for_wake) { - local_event_status |= ACPI_EVENT_FLAG_WAKE_ENABLED; - } - - /* GPE currently active (status bit == 1)? */ - - status = acpi_read(&in_byte, &gpe_register_info->status_address); - if (ACPI_FAILURE(status)) { - goto unlock_and_exit; - } - - if (register_bit & in_byte) { - local_event_status |= ACPI_EVENT_FLAG_SET; - } - - /* Set return value */ - - (*event_status) = local_event_status; - - unlock_and_exit: - return (status); -} - -/****************************************************************************** - * - * FUNCTION: acpi_hw_disable_gpe_block - * - * PARAMETERS: gpe_xrupt_info - GPE Interrupt info - * gpe_block - Gpe Block info - * - * RETURN: Status - * - * DESCRIPTION: Disable all GPEs within a single GPE block - * - ******************************************************************************/ - -acpi_status -acpi_hw_disable_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, - struct acpi_gpe_block_info *gpe_block, void *context) -{ - u32 i; - acpi_status status; - - /* Examine each GPE Register within the block */ - - for (i = 0; i < gpe_block->register_count; i++) { - - /* Disable all GPEs in this register */ - - status = - acpi_write(0x00, - &gpe_block->register_info[i].enable_address); - if (ACPI_FAILURE(status)) { - return (status); - } - } - - return (AE_OK); -} - -/****************************************************************************** - * - * FUNCTION: acpi_hw_clear_gpe_block - * - * PARAMETERS: gpe_xrupt_info - GPE Interrupt info - * gpe_block - Gpe Block info - * - * RETURN: Status - * - * DESCRIPTION: Clear status bits for all GPEs within a single GPE block - * - ******************************************************************************/ - -acpi_status -acpi_hw_clear_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, - struct acpi_gpe_block_info *gpe_block, void *context) -{ - u32 i; - acpi_status status; - - /* Examine each GPE Register within the block */ - - for (i = 0; i < gpe_block->register_count; i++) { - - /* Clear status on all GPEs in this register */ - - status = - acpi_write(0xFF, - &gpe_block->register_info[i].status_address); - if (ACPI_FAILURE(status)) { - return (status); - } - } - - return (AE_OK); -} - -/****************************************************************************** - * - * FUNCTION: acpi_hw_enable_runtime_gpe_block - * - * PARAMETERS: gpe_xrupt_info - GPE Interrupt info - * gpe_block - Gpe Block info - * - * RETURN: Status - * - * DESCRIPTION: Enable all "runtime" GPEs within a single GPE block. Includes - * combination wake/run GPEs. - * - ******************************************************************************/ - -acpi_status -acpi_hw_enable_runtime_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, - struct acpi_gpe_block_info *gpe_block, void *context) -{ - u32 i; - acpi_status status; - - /* NOTE: assumes that all GPEs are currently disabled */ - - /* Examine each GPE Register within the block */ - - for (i = 0; i < gpe_block->register_count; i++) { - if (!gpe_block->register_info[i].enable_for_run) { - continue; - } - - /* Enable all "runtime" GPEs in this register */ - - status = acpi_write(gpe_block->register_info[i].enable_for_run, - &gpe_block->register_info[i]. - enable_address); - if (ACPI_FAILURE(status)) { - return (status); - } - } - - return (AE_OK); -} - -/****************************************************************************** - * - * FUNCTION: acpi_hw_enable_wakeup_gpe_block - * - * PARAMETERS: gpe_xrupt_info - GPE Interrupt info - * gpe_block - Gpe Block info - * - * RETURN: Status - * - * DESCRIPTION: Enable all "wake" GPEs within a single GPE block. Includes - * combination wake/run GPEs. - * - ******************************************************************************/ - -static acpi_status -acpi_hw_enable_wakeup_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, - struct acpi_gpe_block_info *gpe_block, - void *context) -{ - u32 i; - acpi_status status; - - /* Examine each GPE Register within the block */ - - for (i = 0; i < gpe_block->register_count; i++) { - if (!gpe_block->register_info[i].enable_for_wake) { - continue; - } - - /* Enable all "wake" GPEs in this register */ - - status = acpi_write(gpe_block->register_info[i].enable_for_wake, - &gpe_block->register_info[i]. - enable_address); - if (ACPI_FAILURE(status)) { - return (status); - } - } - - return (AE_OK); -} - -/****************************************************************************** - * - * FUNCTION: acpi_hw_disable_all_gpes - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Disable and clear all GPEs in all GPE blocks - * - ******************************************************************************/ - -acpi_status acpi_hw_disable_all_gpes(void) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(hw_disable_all_gpes); - - status = acpi_ev_walk_gpe_list(acpi_hw_disable_gpe_block, NULL); - status = acpi_ev_walk_gpe_list(acpi_hw_clear_gpe_block, NULL); - return_ACPI_STATUS(status); -} - -/****************************************************************************** - * - * FUNCTION: acpi_hw_enable_all_runtime_gpes - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Enable all "runtime" GPEs, in all GPE blocks - * - ******************************************************************************/ - -acpi_status acpi_hw_enable_all_runtime_gpes(void) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(hw_enable_all_runtime_gpes); - - status = acpi_ev_walk_gpe_list(acpi_hw_enable_runtime_gpe_block, NULL); - return_ACPI_STATUS(status); -} - -/****************************************************************************** - * - * FUNCTION: acpi_hw_enable_all_wakeup_gpes - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Enable all "wakeup" GPEs, in all GPE blocks - * - ******************************************************************************/ - -acpi_status acpi_hw_enable_all_wakeup_gpes(void) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(hw_enable_all_wakeup_gpes); - - status = acpi_ev_walk_gpe_list(acpi_hw_enable_wakeup_gpe_block, NULL); - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/hardware/hwregs.c b/drivers/acpi/hardware/hwregs.c deleted file mode 100644 index 4bc3bbba6e9c..000000000000 --- a/drivers/acpi/hardware/hwregs.c +++ /dev/null @@ -1,353 +0,0 @@ - -/******************************************************************************* - * - * Module Name: hwregs - Read/write access functions for the various ACPI - * control and status registers. - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include - -#define _COMPONENT ACPI_HARDWARE -ACPI_MODULE_NAME("hwregs") - -/******************************************************************************* - * - * FUNCTION: acpi_hw_clear_acpi_status - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Clears all fixed and general purpose status bits - * THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED - * - ******************************************************************************/ -acpi_status acpi_hw_clear_acpi_status(void) -{ - acpi_status status; - acpi_cpu_flags lock_flags = 0; - - ACPI_FUNCTION_TRACE(hw_clear_acpi_status); - - ACPI_DEBUG_PRINT((ACPI_DB_IO, "About to write %04X to %04X\n", - ACPI_BITMASK_ALL_FIXED_STATUS, - (u16) acpi_gbl_FADT.xpm1a_event_block.address)); - - lock_flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock); - - status = acpi_hw_register_write(ACPI_REGISTER_PM1_STATUS, - ACPI_BITMASK_ALL_FIXED_STATUS); - if (ACPI_FAILURE(status)) { - goto unlock_and_exit; - } - - /* Clear the fixed events */ - - if (acpi_gbl_FADT.xpm1b_event_block.address) { - status = acpi_write(ACPI_BITMASK_ALL_FIXED_STATUS, - &acpi_gbl_FADT.xpm1b_event_block); - if (ACPI_FAILURE(status)) { - goto unlock_and_exit; - } - } - - /* Clear the GPE Bits in all GPE registers in all GPE blocks */ - - status = acpi_ev_walk_gpe_list(acpi_hw_clear_gpe_block, NULL); - - unlock_and_exit: - acpi_os_release_lock(acpi_gbl_hardware_lock, lock_flags); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_hw_get_register_bit_mask - * - * PARAMETERS: register_id - Index of ACPI Register to access - * - * RETURN: The bitmask to be used when accessing the register - * - * DESCRIPTION: Map register_id into a register bitmask. - * - ******************************************************************************/ - -struct acpi_bit_register_info *acpi_hw_get_bit_register_info(u32 register_id) -{ - ACPI_FUNCTION_ENTRY(); - - if (register_id > ACPI_BITREG_MAX) { - ACPI_ERROR((AE_INFO, "Invalid BitRegister ID: %X", - register_id)); - return (NULL); - } - - return (&acpi_gbl_bit_register_info[register_id]); -} - -/****************************************************************************** - * - * FUNCTION: acpi_hw_register_read - * - * PARAMETERS: register_id - ACPI Register ID - * return_value - Where the register value is returned - * - * RETURN: Status and the value read. - * - * DESCRIPTION: Read from the specified ACPI register - * - ******************************************************************************/ -acpi_status -acpi_hw_register_read(u32 register_id, u32 * return_value) -{ - u32 value1 = 0; - u32 value2 = 0; - acpi_status status; - - ACPI_FUNCTION_TRACE(hw_register_read); - - switch (register_id) { - case ACPI_REGISTER_PM1_STATUS: /* 16-bit access */ - - status = acpi_read(&value1, &acpi_gbl_FADT.xpm1a_event_block); - if (ACPI_FAILURE(status)) { - goto exit; - } - - /* PM1B is optional */ - - status = acpi_read(&value2, &acpi_gbl_FADT.xpm1b_event_block); - value1 |= value2; - break; - - case ACPI_REGISTER_PM1_ENABLE: /* 16-bit access */ - - status = acpi_read(&value1, &acpi_gbl_xpm1a_enable); - if (ACPI_FAILURE(status)) { - goto exit; - } - - /* PM1B is optional */ - - status = acpi_read(&value2, &acpi_gbl_xpm1b_enable); - value1 |= value2; - break; - - case ACPI_REGISTER_PM1_CONTROL: /* 16-bit access */ - - status = acpi_read(&value1, &acpi_gbl_FADT.xpm1a_control_block); - if (ACPI_FAILURE(status)) { - goto exit; - } - - status = acpi_read(&value2, &acpi_gbl_FADT.xpm1b_control_block); - value1 |= value2; - break; - - case ACPI_REGISTER_PM2_CONTROL: /* 8-bit access */ - - status = acpi_read(&value1, &acpi_gbl_FADT.xpm2_control_block); - break; - - case ACPI_REGISTER_PM_TIMER: /* 32-bit access */ - - status = acpi_read(&value1, &acpi_gbl_FADT.xpm_timer_block); - break; - - case ACPI_REGISTER_SMI_COMMAND_BLOCK: /* 8-bit access */ - - status = - acpi_os_read_port(acpi_gbl_FADT.smi_command, &value1, 8); - break; - - default: - ACPI_ERROR((AE_INFO, "Unknown Register ID: %X", register_id)); - status = AE_BAD_PARAMETER; - break; - } - - exit: - - if (ACPI_SUCCESS(status)) { - *return_value = value1; - } - - return_ACPI_STATUS(status); -} - -/****************************************************************************** - * - * FUNCTION: acpi_hw_register_write - * - * PARAMETERS: register_id - ACPI Register ID - * Value - The value to write - * - * RETURN: Status - * - * DESCRIPTION: Write to the specified ACPI register - * - * NOTE: In accordance with the ACPI specification, this function automatically - * preserves the value of the following bits, meaning that these bits cannot be - * changed via this interface: - * - * PM1_CONTROL[0] = SCI_EN - * PM1_CONTROL[9] - * PM1_STATUS[11] - * - * ACPI References: - * 1) Hardware Ignored Bits: When software writes to a register with ignored - * bit fields, it preserves the ignored bit fields - * 2) SCI_EN: OSPM always preserves this bit position - * - ******************************************************************************/ - -acpi_status acpi_hw_register_write(u32 register_id, u32 value) -{ - acpi_status status; - u32 read_value; - - ACPI_FUNCTION_TRACE(hw_register_write); - - switch (register_id) { - case ACPI_REGISTER_PM1_STATUS: /* 16-bit access */ - - /* Perform a read first to preserve certain bits (per ACPI spec) */ - - status = acpi_hw_register_read(ACPI_REGISTER_PM1_STATUS, - &read_value); - if (ACPI_FAILURE(status)) { - goto exit; - } - - /* Insert the bits to be preserved */ - - ACPI_INSERT_BITS(value, ACPI_PM1_STATUS_PRESERVED_BITS, - read_value); - - /* Now we can write the data */ - - status = acpi_write(value, &acpi_gbl_FADT.xpm1a_event_block); - if (ACPI_FAILURE(status)) { - goto exit; - } - - /* PM1B is optional */ - - status = acpi_write(value, &acpi_gbl_FADT.xpm1b_event_block); - break; - - case ACPI_REGISTER_PM1_ENABLE: /* 16-bit access */ - - status = acpi_write(value, &acpi_gbl_xpm1a_enable); - if (ACPI_FAILURE(status)) { - goto exit; - } - - /* PM1B is optional */ - - status = acpi_write(value, &acpi_gbl_xpm1b_enable); - break; - - case ACPI_REGISTER_PM1_CONTROL: /* 16-bit access */ - - /* - * Perform a read first to preserve certain bits (per ACPI spec) - */ - status = acpi_hw_register_read(ACPI_REGISTER_PM1_CONTROL, - &read_value); - if (ACPI_FAILURE(status)) { - goto exit; - } - - /* Insert the bits to be preserved */ - - ACPI_INSERT_BITS(value, ACPI_PM1_CONTROL_PRESERVED_BITS, - read_value); - - /* Now we can write the data */ - - status = acpi_write(value, &acpi_gbl_FADT.xpm1a_control_block); - if (ACPI_FAILURE(status)) { - goto exit; - } - - status = acpi_write(value, &acpi_gbl_FADT.xpm1b_control_block); - break; - - case ACPI_REGISTER_PM1A_CONTROL: /* 16-bit access */ - - status = acpi_write(value, &acpi_gbl_FADT.xpm1a_control_block); - break; - - case ACPI_REGISTER_PM1B_CONTROL: /* 16-bit access */ - - status = acpi_write(value, &acpi_gbl_FADT.xpm1b_control_block); - break; - - case ACPI_REGISTER_PM2_CONTROL: /* 8-bit access */ - - status = acpi_write(value, &acpi_gbl_FADT.xpm2_control_block); - break; - - case ACPI_REGISTER_PM_TIMER: /* 32-bit access */ - - status = acpi_write(value, &acpi_gbl_FADT.xpm_timer_block); - break; - - case ACPI_REGISTER_SMI_COMMAND_BLOCK: /* 8-bit access */ - - /* SMI_CMD is currently always in IO space */ - - status = - acpi_os_write_port(acpi_gbl_FADT.smi_command, value, 8); - break; - - default: - status = AE_BAD_PARAMETER; - break; - } - - exit: - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/hardware/hwsleep.c b/drivers/acpi/hardware/hwsleep.c deleted file mode 100644 index 54dd3ee0760c..000000000000 --- a/drivers/acpi/hardware/hwsleep.c +++ /dev/null @@ -1,629 +0,0 @@ - -/****************************************************************************** - * - * Name: hwsleep.c - ACPI Hardware Sleep/Wake Interface - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_HARDWARE -ACPI_MODULE_NAME("hwsleep") - -/******************************************************************************* - * - * FUNCTION: acpi_set_firmware_waking_vector - * - * PARAMETERS: physical_address - 32-bit physical address of ACPI real mode - * entry point. - * - * RETURN: Status - * - * DESCRIPTION: Sets the 32-bit firmware_waking_vector field of the FACS - * - ******************************************************************************/ -acpi_status -acpi_set_firmware_waking_vector(u32 physical_address) -{ - ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vector); - - - /* - * According to the ACPI specification 2.0c and later, the 64-bit - * waking vector should be cleared and the 32-bit waking vector should - * be used, unless we want the wake-up code to be called by the BIOS in - * Protected Mode. Some systems (for example HP dv5-1004nr) are known - * to fail to resume if the 64-bit vector is used. - */ - - /* Set the 32-bit vector */ - - acpi_gbl_FACS->firmware_waking_vector = physical_address; - - /* Clear the 64-bit vector if it exists */ - - if ((acpi_gbl_FACS->length > 32) && (acpi_gbl_FACS->version >= 1)) { - acpi_gbl_FACS->xfirmware_waking_vector = 0; - } - - return_ACPI_STATUS(AE_OK); -} - -ACPI_EXPORT_SYMBOL(acpi_set_firmware_waking_vector) - -/******************************************************************************* - * - * FUNCTION: acpi_set_firmware_waking_vector64 - * - * PARAMETERS: physical_address - 64-bit physical address of ACPI protected - * mode entry point. - * - * RETURN: Status - * - * DESCRIPTION: Sets the 64-bit X_firmware_waking_vector field of the FACS, if - * it exists in the table. - * - ******************************************************************************/ -acpi_status -acpi_set_firmware_waking_vector64(u64 physical_address) -{ - ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vector64); - - - /* Determine if the 64-bit vector actually exists */ - - if ((acpi_gbl_FACS->length <= 32) || (acpi_gbl_FACS->version < 1)) { - return_ACPI_STATUS(AE_NOT_EXIST); - } - - /* Clear 32-bit vector, set the 64-bit X_ vector */ - - acpi_gbl_FACS->firmware_waking_vector = 0; - acpi_gbl_FACS->xfirmware_waking_vector = physical_address; - - return_ACPI_STATUS(AE_OK); -} - -ACPI_EXPORT_SYMBOL(acpi_set_firmware_waking_vector64) - -/******************************************************************************* - * - * FUNCTION: acpi_enter_sleep_state_prep - * - * PARAMETERS: sleep_state - Which sleep state to enter - * - * RETURN: Status - * - * DESCRIPTION: Prepare to enter a system sleep state (see ACPI 2.0 spec p 231) - * This function must execute with interrupts enabled. - * We break sleeping into 2 stages so that OSPM can handle - * various OS-specific tasks between the two steps. - * - ******************************************************************************/ -acpi_status acpi_enter_sleep_state_prep(u8 sleep_state) -{ - acpi_status status; - struct acpi_object_list arg_list; - union acpi_object arg; - - ACPI_FUNCTION_TRACE(acpi_enter_sleep_state_prep); - - /* - * _PSW methods could be run here to enable wake-on keyboard, LAN, etc. - */ - status = acpi_get_sleep_type_data(sleep_state, - &acpi_gbl_sleep_type_a, - &acpi_gbl_sleep_type_b); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Setup parameter object */ - - arg_list.count = 1; - arg_list.pointer = &arg; - - arg.type = ACPI_TYPE_INTEGER; - arg.integer.value = sleep_state; - - /* Run the _PTS method */ - - status = acpi_evaluate_object(NULL, METHOD_NAME__PTS, &arg_list, NULL); - if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { - return_ACPI_STATUS(status); - } - - /* Setup the argument to _SST */ - - switch (sleep_state) { - case ACPI_STATE_S0: - arg.integer.value = ACPI_SST_WORKING; - break; - - case ACPI_STATE_S1: - case ACPI_STATE_S2: - case ACPI_STATE_S3: - arg.integer.value = ACPI_SST_SLEEPING; - break; - - case ACPI_STATE_S4: - arg.integer.value = ACPI_SST_SLEEP_CONTEXT; - break; - - default: - arg.integer.value = ACPI_SST_INDICATOR_OFF; /* Default is off */ - break; - } - - /* - * Set the system indicators to show the desired sleep state. - * _SST is an optional method (return no error if not found) - */ - status = acpi_evaluate_object(NULL, METHOD_NAME__SST, &arg_list, NULL); - if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { - ACPI_EXCEPTION((AE_INFO, status, - "While executing method _SST")); - } - - return_ACPI_STATUS(AE_OK); -} - -ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_prep) - -/******************************************************************************* - * - * FUNCTION: acpi_enter_sleep_state - * - * PARAMETERS: sleep_state - Which sleep state to enter - * - * RETURN: Status - * - * DESCRIPTION: Enter a system sleep state (see ACPI 2.0 spec p 231) - * THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED - * - ******************************************************************************/ -acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state) -{ - u32 PM1Acontrol; - u32 PM1Bcontrol; - struct acpi_bit_register_info *sleep_type_reg_info; - struct acpi_bit_register_info *sleep_enable_reg_info; - u32 in_value; - struct acpi_object_list arg_list; - union acpi_object arg; - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_enter_sleep_state); - - if ((acpi_gbl_sleep_type_a > ACPI_SLEEP_TYPE_MAX) || - (acpi_gbl_sleep_type_b > ACPI_SLEEP_TYPE_MAX)) { - ACPI_ERROR((AE_INFO, "Sleep values out of range: A=%X B=%X", - acpi_gbl_sleep_type_a, acpi_gbl_sleep_type_b)); - return_ACPI_STATUS(AE_AML_OPERAND_VALUE); - } - - sleep_type_reg_info = - acpi_hw_get_bit_register_info(ACPI_BITREG_SLEEP_TYPE_A); - sleep_enable_reg_info = - acpi_hw_get_bit_register_info(ACPI_BITREG_SLEEP_ENABLE); - - /* Clear wake status */ - - status = acpi_set_register(ACPI_BITREG_WAKE_STATUS, 1); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Clear all fixed and general purpose status bits */ - - status = acpi_hw_clear_acpi_status(); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * 1) Disable/Clear all GPEs - * 2) Enable all wakeup GPEs - */ - status = acpi_hw_disable_all_gpes(); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - acpi_gbl_system_awake_and_running = FALSE; - - status = acpi_hw_enable_all_wakeup_gpes(); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Execute the _GTS method */ - - arg_list.count = 1; - arg_list.pointer = &arg; - arg.type = ACPI_TYPE_INTEGER; - arg.integer.value = sleep_state; - - status = acpi_evaluate_object(NULL, METHOD_NAME__GTS, &arg_list, NULL); - if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { - return_ACPI_STATUS(status); - } - - /* Get current value of PM1A control */ - - status = acpi_hw_register_read(ACPI_REGISTER_PM1_CONTROL, &PM1Acontrol); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - ACPI_DEBUG_PRINT((ACPI_DB_INIT, - "Entering sleep state [S%d]\n", sleep_state)); - - /* Clear SLP_EN and SLP_TYP fields */ - - PM1Acontrol &= ~(sleep_type_reg_info->access_bit_mask | - sleep_enable_reg_info->access_bit_mask); - PM1Bcontrol = PM1Acontrol; - - /* Insert SLP_TYP bits */ - - PM1Acontrol |= - (acpi_gbl_sleep_type_a << sleep_type_reg_info->bit_position); - PM1Bcontrol |= - (acpi_gbl_sleep_type_b << sleep_type_reg_info->bit_position); - - /* - * We split the writes of SLP_TYP and SLP_EN to workaround - * poorly implemented hardware. - */ - - /* Write #1: fill in SLP_TYP data */ - - status = acpi_hw_register_write(ACPI_REGISTER_PM1A_CONTROL, - PM1Acontrol); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - status = acpi_hw_register_write(ACPI_REGISTER_PM1B_CONTROL, - PM1Bcontrol); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Insert SLP_ENABLE bit */ - - PM1Acontrol |= sleep_enable_reg_info->access_bit_mask; - PM1Bcontrol |= sleep_enable_reg_info->access_bit_mask; - - /* Write #2: SLP_TYP + SLP_EN */ - - ACPI_FLUSH_CPU_CACHE(); - - status = acpi_hw_register_write(ACPI_REGISTER_PM1A_CONTROL, - PM1Acontrol); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - status = acpi_hw_register_write(ACPI_REGISTER_PM1B_CONTROL, - PM1Bcontrol); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - if (sleep_state > ACPI_STATE_S3) { - /* - * We wanted to sleep > S3, but it didn't happen (by virtue of the - * fact that we are still executing!) - * - * Wait ten seconds, then try again. This is to get S4/S5 to work on - * all machines. - * - * We wait so long to allow chipsets that poll this reg very slowly to - * still read the right value. Ideally, this block would go - * away entirely. - */ - acpi_os_stall(10000000); - - status = acpi_hw_register_write(ACPI_REGISTER_PM1_CONTROL, - sleep_enable_reg_info-> - access_bit_mask); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - - /* Wait until we enter sleep state */ - - do { - status = acpi_get_register_unlocked(ACPI_BITREG_WAKE_STATUS, - &in_value); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Spin until we wake */ - - } while (!in_value); - - return_ACPI_STATUS(AE_OK); -} - -ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state) - -/******************************************************************************* - * - * FUNCTION: acpi_enter_sleep_state_s4bios - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Perform a S4 bios request. - * THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED - * - ******************************************************************************/ -acpi_status asmlinkage acpi_enter_sleep_state_s4bios(void) -{ - u32 in_value; - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_enter_sleep_state_s4bios); - - status = acpi_set_register(ACPI_BITREG_WAKE_STATUS, 1); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - status = acpi_hw_clear_acpi_status(); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * 1) Disable/Clear all GPEs - * 2) Enable all wakeup GPEs - */ - status = acpi_hw_disable_all_gpes(); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - acpi_gbl_system_awake_and_running = FALSE; - - status = acpi_hw_enable_all_wakeup_gpes(); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - ACPI_FLUSH_CPU_CACHE(); - - status = acpi_os_write_port(acpi_gbl_FADT.smi_command, - (u32) acpi_gbl_FADT.S4bios_request, 8); - - do { - acpi_os_stall(1000); - status = acpi_get_register(ACPI_BITREG_WAKE_STATUS, &in_value); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } while (!in_value); - - return_ACPI_STATUS(AE_OK); -} - -ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_s4bios) - -/******************************************************************************* - * - * FUNCTION: acpi_leave_sleep_state_prep - * - * PARAMETERS: sleep_state - Which sleep state we are exiting - * - * RETURN: Status - * - * DESCRIPTION: Perform the first state of OS-independent ACPI cleanup after a - * sleep. - * Called with interrupts DISABLED. - * - ******************************************************************************/ -acpi_status acpi_leave_sleep_state_prep(u8 sleep_state) -{ - struct acpi_object_list arg_list; - union acpi_object arg; - acpi_status status; - struct acpi_bit_register_info *sleep_type_reg_info; - struct acpi_bit_register_info *sleep_enable_reg_info; - u32 PM1Acontrol; - u32 PM1Bcontrol; - - ACPI_FUNCTION_TRACE(acpi_leave_sleep_state_prep); - - /* - * Set SLP_TYPE and SLP_EN to state S0. - * This is unclear from the ACPI Spec, but it is required - * by some machines. - */ - status = acpi_get_sleep_type_data(ACPI_STATE_S0, - &acpi_gbl_sleep_type_a, - &acpi_gbl_sleep_type_b); - if (ACPI_SUCCESS(status)) { - sleep_type_reg_info = - acpi_hw_get_bit_register_info(ACPI_BITREG_SLEEP_TYPE_A); - sleep_enable_reg_info = - acpi_hw_get_bit_register_info(ACPI_BITREG_SLEEP_ENABLE); - - /* Get current value of PM1A control */ - - status = acpi_hw_register_read(ACPI_REGISTER_PM1_CONTROL, - &PM1Acontrol); - if (ACPI_SUCCESS(status)) { - - /* Clear SLP_EN and SLP_TYP fields */ - - PM1Acontrol &= ~(sleep_type_reg_info->access_bit_mask | - sleep_enable_reg_info-> - access_bit_mask); - PM1Bcontrol = PM1Acontrol; - - /* Insert SLP_TYP bits */ - - PM1Acontrol |= - (acpi_gbl_sleep_type_a << sleep_type_reg_info-> - bit_position); - PM1Bcontrol |= - (acpi_gbl_sleep_type_b << sleep_type_reg_info-> - bit_position); - - /* Just ignore any errors */ - - (void)acpi_hw_register_write(ACPI_REGISTER_PM1A_CONTROL, - PM1Acontrol); - (void)acpi_hw_register_write(ACPI_REGISTER_PM1B_CONTROL, - PM1Bcontrol); - } - } - - /* Execute the _BFS method */ - - arg_list.count = 1; - arg_list.pointer = &arg; - arg.type = ACPI_TYPE_INTEGER; - arg.integer.value = sleep_state; - - status = acpi_evaluate_object(NULL, METHOD_NAME__BFS, &arg_list, NULL); - if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { - ACPI_EXCEPTION((AE_INFO, status, "During Method _BFS")); - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_leave_sleep_state - * - * PARAMETERS: sleep_state - Which sleep state we just exited - * - * RETURN: Status - * - * DESCRIPTION: Perform OS-independent ACPI cleanup after a sleep - * Called with interrupts ENABLED. - * - ******************************************************************************/ -acpi_status acpi_leave_sleep_state(u8 sleep_state) -{ - struct acpi_object_list arg_list; - union acpi_object arg; - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_leave_sleep_state); - - /* Ensure enter_sleep_state_prep -> enter_sleep_state ordering */ - - acpi_gbl_sleep_type_a = ACPI_SLEEP_TYPE_INVALID; - - /* Setup parameter object */ - - arg_list.count = 1; - arg_list.pointer = &arg; - arg.type = ACPI_TYPE_INTEGER; - - /* Ignore any errors from these methods */ - - arg.integer.value = ACPI_SST_WAKING; - status = acpi_evaluate_object(NULL, METHOD_NAME__SST, &arg_list, NULL); - if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { - ACPI_EXCEPTION((AE_INFO, status, "During Method _SST")); - } - - /* - * GPEs must be enabled before _WAK is called as GPEs - * might get fired there - * - * Restore the GPEs: - * 1) Disable/Clear all GPEs - * 2) Enable all runtime GPEs - */ - status = acpi_hw_disable_all_gpes(); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - status = acpi_hw_enable_all_runtime_gpes(); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - arg.integer.value = sleep_state; - status = acpi_evaluate_object(NULL, METHOD_NAME__WAK, &arg_list, NULL); - if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { - ACPI_EXCEPTION((AE_INFO, status, "During Method _WAK")); - } - /* TBD: _WAK "sometimes" returns stuff - do we want to look at it? */ - - /* - * Some BIOSes assume that WAK_STS will be cleared on resume and use - * it to determine whether the system is rebooting or resuming. Clear - * it for compatibility. - */ - acpi_set_register(ACPI_BITREG_WAKE_STATUS, 1); - - acpi_gbl_system_awake_and_running = TRUE; - - /* Enable power button */ - - (void) - acpi_set_register(acpi_gbl_fixed_event_info - [ACPI_EVENT_POWER_BUTTON].enable_register_id, 1); - - (void) - acpi_set_register(acpi_gbl_fixed_event_info - [ACPI_EVENT_POWER_BUTTON].status_register_id, 1); - - arg.integer.value = ACPI_SST_WORKING; - status = acpi_evaluate_object(NULL, METHOD_NAME__SST, &arg_list, NULL); - if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { - ACPI_EXCEPTION((AE_INFO, status, "During Method _SST")); - } - - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_leave_sleep_state) diff --git a/drivers/acpi/hardware/hwtimer.c b/drivers/acpi/hardware/hwtimer.c deleted file mode 100644 index d1eac2aad728..000000000000 --- a/drivers/acpi/hardware/hwtimer.c +++ /dev/null @@ -1,188 +0,0 @@ - -/****************************************************************************** - * - * Name: hwtimer.c - ACPI Power Management Timer Interface - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include - -#define _COMPONENT ACPI_HARDWARE -ACPI_MODULE_NAME("hwtimer") - -/****************************************************************************** - * - * FUNCTION: acpi_get_timer_resolution - * - * PARAMETERS: Resolution - Where the resolution is returned - * - * RETURN: Status and timer resolution - * - * DESCRIPTION: Obtains resolution of the ACPI PM Timer (24 or 32 bits). - * - ******************************************************************************/ -acpi_status acpi_get_timer_resolution(u32 * resolution) -{ - ACPI_FUNCTION_TRACE(acpi_get_timer_resolution); - - if (!resolution) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - if ((acpi_gbl_FADT.flags & ACPI_FADT_32BIT_TIMER) == 0) { - *resolution = 24; - } else { - *resolution = 32; - } - - return_ACPI_STATUS(AE_OK); -} - -ACPI_EXPORT_SYMBOL(acpi_get_timer_resolution) - -/****************************************************************************** - * - * FUNCTION: acpi_get_timer - * - * PARAMETERS: Ticks - Where the timer value is returned - * - * RETURN: Status and current timer value (ticks) - * - * DESCRIPTION: Obtains current value of ACPI PM Timer (in ticks). - * - ******************************************************************************/ -acpi_status acpi_get_timer(u32 * ticks) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_get_timer); - - if (!ticks) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - status = - acpi_hw_low_level_read(32, ticks, &acpi_gbl_FADT.xpm_timer_block); - - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_timer) - -/****************************************************************************** - * - * FUNCTION: acpi_get_timer_duration - * - * PARAMETERS: start_ticks - Starting timestamp - * end_ticks - End timestamp - * time_elapsed - Where the elapsed time is returned - * - * RETURN: Status and time_elapsed - * - * DESCRIPTION: Computes the time elapsed (in microseconds) between two - * PM Timer time stamps, taking into account the possibility of - * rollovers, the timer resolution, and timer frequency. - * - * The PM Timer's clock ticks at roughly 3.6 times per - * _microsecond_, and its clock continues through Cx state - * transitions (unlike many CPU timestamp counters) -- making it - * a versatile and accurate timer. - * - * Note that this function accommodates only a single timer - * rollover. Thus for 24-bit timers, this function should only - * be used for calculating durations less than ~4.6 seconds - * (~20 minutes for 32-bit timers) -- calculations below: - * - * 2**24 Ticks / 3,600,000 Ticks/Sec = 4.66 sec - * 2**32 Ticks / 3,600,000 Ticks/Sec = 1193 sec or 19.88 minutes - * - ******************************************************************************/ -acpi_status -acpi_get_timer_duration(u32 start_ticks, u32 end_ticks, u32 * time_elapsed) -{ - acpi_status status; - u32 delta_ticks; - acpi_integer quotient; - - ACPI_FUNCTION_TRACE(acpi_get_timer_duration); - - if (!time_elapsed) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* - * Compute Tick Delta: - * Handle (max one) timer rollovers on 24-bit versus 32-bit timers. - */ - if (start_ticks < end_ticks) { - delta_ticks = end_ticks - start_ticks; - } else if (start_ticks > end_ticks) { - if ((acpi_gbl_FADT.flags & ACPI_FADT_32BIT_TIMER) == 0) { - - /* 24-bit Timer */ - - delta_ticks = - (((0x00FFFFFF - start_ticks) + - end_ticks) & 0x00FFFFFF); - } else { - /* 32-bit Timer */ - - delta_ticks = (0xFFFFFFFF - start_ticks) + end_ticks; - } - } else { /* start_ticks == end_ticks */ - - *time_elapsed = 0; - return_ACPI_STATUS(AE_OK); - } - - /* - * Compute Duration (Requires a 64-bit multiply and divide): - * - * time_elapsed = (delta_ticks * 1000000) / PM_TIMER_FREQUENCY; - */ - status = acpi_ut_short_divide(((u64) delta_ticks) * 1000000, - PM_TIMER_FREQUENCY, "ient, NULL); - - *time_elapsed = (u32) quotient; - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_timer_duration) diff --git a/drivers/acpi/hardware/hwxface.c b/drivers/acpi/hardware/hwxface.c deleted file mode 100644 index a4456fc9462d..000000000000 --- a/drivers/acpi/hardware/hwxface.c +++ /dev/null @@ -1,593 +0,0 @@ - -/****************************************************************************** - * - * Module Name: hwxface - Public ACPICA hardware interfaces - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_HARDWARE -ACPI_MODULE_NAME("hwxface") - -/****************************************************************************** - * - * FUNCTION: acpi_reset - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Set reset register in memory or IO space. Note: Does not - * support reset register in PCI config space, this must be - * handled separately. - * - ******************************************************************************/ -acpi_status acpi_reset(void) -{ - struct acpi_generic_address *reset_reg; - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_reset); - - reset_reg = &acpi_gbl_FADT.reset_register; - - /* Check if the reset register is supported */ - - if (!(acpi_gbl_FADT.flags & ACPI_FADT_RESET_REGISTER) || - !reset_reg->address) { - return_ACPI_STATUS(AE_NOT_EXIST); - } - - /* Write the reset value to the reset register */ - - status = acpi_write(acpi_gbl_FADT.reset_value, reset_reg); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_reset) - -/****************************************************************************** - * - * FUNCTION: acpi_read - * - * PARAMETERS: Value - Where the value is returned - * Reg - GAS register structure - * - * RETURN: Status - * - * DESCRIPTION: Read from either memory or IO space. - * - ******************************************************************************/ -acpi_status acpi_read(u32 *value, struct acpi_generic_address *reg) -{ - u32 width; - u64 address; - acpi_status status; - - ACPI_FUNCTION_NAME(acpi_read); - - /* - * Must have a valid pointer to a GAS structure, and - * a non-zero address within. However, don't return an error - * because the PM1A/B code must not fail if B isn't present. - */ - if (!reg) { - return (AE_OK); - } - - /* Get a local copy of the address. Handles possible alignment issues */ - - ACPI_MOVE_64_TO_64(&address, ®->address); - if (!address) { - return (AE_OK); - } - - /* Supported widths are 8/16/32 */ - - width = reg->bit_width; - if ((width != 8) && (width != 16) && (width != 32)) { - return (AE_SUPPORT); - } - - /* Initialize entire 32-bit return value to zero */ - - *value = 0; - - /* - * Two address spaces supported: Memory or IO. - * PCI_Config is not supported here because the GAS struct is insufficient - */ - switch (reg->space_id) { - case ACPI_ADR_SPACE_SYSTEM_MEMORY: - - status = acpi_os_read_memory((acpi_physical_address) address, - value, width); - break; - - case ACPI_ADR_SPACE_SYSTEM_IO: - - status = - acpi_os_read_port((acpi_io_address) address, value, width); - break; - - default: - ACPI_ERROR((AE_INFO, - "Unsupported address space: %X", reg->space_id)); - return (AE_BAD_PARAMETER); - } - - ACPI_DEBUG_PRINT((ACPI_DB_IO, - "Read: %8.8X width %2d from %8.8X%8.8X (%s)\n", - *value, width, ACPI_FORMAT_UINT64(address), - acpi_ut_get_region_name(reg->space_id))); - - return (status); -} - -ACPI_EXPORT_SYMBOL(acpi_read) - -/****************************************************************************** - * - * FUNCTION: acpi_write - * - * PARAMETERS: Value - To be written - * Reg - GAS register structure - * - * RETURN: Status - * - * DESCRIPTION: Write to either memory or IO space. - * - ******************************************************************************/ -acpi_status acpi_write(u32 value, struct acpi_generic_address *reg) -{ - u32 width; - u64 address; - acpi_status status; - - ACPI_FUNCTION_NAME(acpi_write); - - /* - * Must have a valid pointer to a GAS structure, and - * a non-zero address within. However, don't return an error - * because the PM1A/B code must not fail if B isn't present. - */ - if (!reg) { - return (AE_OK); - } - - /* Get a local copy of the address. Handles possible alignment issues */ - - ACPI_MOVE_64_TO_64(&address, ®->address); - if (!address) { - return (AE_OK); - } - - /* Supported widths are 8/16/32 */ - - width = reg->bit_width; - if ((width != 8) && (width != 16) && (width != 32)) { - return (AE_SUPPORT); - } - - /* - * Two address spaces supported: Memory or IO. - * PCI_Config is not supported here because the GAS struct is insufficient - */ - switch (reg->space_id) { - case ACPI_ADR_SPACE_SYSTEM_MEMORY: - - status = acpi_os_write_memory((acpi_physical_address) address, - value, width); - break; - - case ACPI_ADR_SPACE_SYSTEM_IO: - - status = acpi_os_write_port((acpi_io_address) address, value, - width); - break; - - default: - ACPI_ERROR((AE_INFO, - "Unsupported address space: %X", reg->space_id)); - return (AE_BAD_PARAMETER); - } - - ACPI_DEBUG_PRINT((ACPI_DB_IO, - "Wrote: %8.8X width %2d to %8.8X%8.8X (%s)\n", - value, width, ACPI_FORMAT_UINT64(address), - acpi_ut_get_region_name(reg->space_id))); - - return (status); -} - -ACPI_EXPORT_SYMBOL(acpi_write) - -/******************************************************************************* - * - * FUNCTION: acpi_get_register_unlocked - * - * PARAMETERS: register_id - ID of ACPI bit_register to access - * return_value - Value that was read from the register - * - * RETURN: Status and the value read from specified Register. Value - * returned is normalized to bit0 (is shifted all the way right) - * - * DESCRIPTION: ACPI bit_register read function. Does not acquire the HW lock. - * - ******************************************************************************/ -acpi_status acpi_get_register_unlocked(u32 register_id, u32 *return_value) -{ - u32 register_value = 0; - struct acpi_bit_register_info *bit_reg_info; - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_get_register_unlocked); - - /* Get the info structure corresponding to the requested ACPI Register */ - - bit_reg_info = acpi_hw_get_bit_register_info(register_id); - if (!bit_reg_info) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Read from the register */ - - status = acpi_hw_register_read(bit_reg_info->parent_register, - ®ister_value); - - if (ACPI_SUCCESS(status)) { - - /* Normalize the value that was read */ - - register_value = - ((register_value & bit_reg_info->access_bit_mask) - >> bit_reg_info->bit_position); - - *return_value = register_value; - - ACPI_DEBUG_PRINT((ACPI_DB_IO, "Read value %8.8X register %X\n", - register_value, - bit_reg_info->parent_register)); - } - - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_register_unlocked) - -/******************************************************************************* - * - * FUNCTION: acpi_get_register - * - * PARAMETERS: register_id - ID of ACPI bit_register to access - * return_value - Value that was read from the register - * - * RETURN: Status and the value read from specified Register. Value - * returned is normalized to bit0 (is shifted all the way right) - * - * DESCRIPTION: ACPI bit_register read function. - * - ******************************************************************************/ -acpi_status acpi_get_register(u32 register_id, u32 *return_value) -{ - acpi_status status; - acpi_cpu_flags flags; - - flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock); - status = acpi_get_register_unlocked(register_id, return_value); - acpi_os_release_lock(acpi_gbl_hardware_lock, flags); - - return (status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_register) - -/******************************************************************************* - * - * FUNCTION: acpi_set_register - * - * PARAMETERS: register_id - ID of ACPI bit_register to access - * Value - (only used on write) value to write to the - * Register, NOT pre-normalized to the bit pos - * - * RETURN: Status - * - * DESCRIPTION: ACPI Bit Register write function. - * - ******************************************************************************/ -acpi_status acpi_set_register(u32 register_id, u32 value) -{ - u32 register_value = 0; - struct acpi_bit_register_info *bit_reg_info; - acpi_status status; - acpi_cpu_flags lock_flags; - - ACPI_FUNCTION_TRACE_U32(acpi_set_register, register_id); - - /* Get the info structure corresponding to the requested ACPI Register */ - - bit_reg_info = acpi_hw_get_bit_register_info(register_id); - if (!bit_reg_info) { - ACPI_ERROR((AE_INFO, "Bad ACPI HW RegisterId: %X", - register_id)); - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - lock_flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock); - - /* Always do a register read first so we can insert the new bits */ - - status = acpi_hw_register_read(bit_reg_info->parent_register, - ®ister_value); - if (ACPI_FAILURE(status)) { - goto unlock_and_exit; - } - - /* - * Decode the Register ID - * Register ID = [Register block ID] | [bit ID] - * - * Check bit ID to fine locate Register offset. - * Check Mask to determine Register offset, and then read-write. - */ - switch (bit_reg_info->parent_register) { - case ACPI_REGISTER_PM1_STATUS: - - /* - * Status Registers are different from the rest. Clear by - * writing 1, and writing 0 has no effect. So, the only relevant - * information is the single bit we're interested in, all others should - * be written as 0 so they will be left unchanged. - */ - value = ACPI_REGISTER_PREPARE_BITS(value, - bit_reg_info->bit_position, - bit_reg_info-> - access_bit_mask); - if (value) { - status = - acpi_hw_register_write(ACPI_REGISTER_PM1_STATUS, - (u16) value); - register_value = 0; - } - break; - - case ACPI_REGISTER_PM1_ENABLE: - - ACPI_REGISTER_INSERT_VALUE(register_value, - bit_reg_info->bit_position, - bit_reg_info->access_bit_mask, - value); - - status = acpi_hw_register_write(ACPI_REGISTER_PM1_ENABLE, - (u16) register_value); - break; - - case ACPI_REGISTER_PM1_CONTROL: - - /* - * Write the PM1 Control register. - * Note that at this level, the fact that there are actually TWO - * registers (A and B - and B may not exist) is abstracted. - */ - ACPI_DEBUG_PRINT((ACPI_DB_IO, "PM1 control: Read %X\n", - register_value)); - - ACPI_REGISTER_INSERT_VALUE(register_value, - bit_reg_info->bit_position, - bit_reg_info->access_bit_mask, - value); - - status = acpi_hw_register_write(ACPI_REGISTER_PM1_CONTROL, - (u16) register_value); - break; - - case ACPI_REGISTER_PM2_CONTROL: - - status = acpi_hw_register_read(ACPI_REGISTER_PM2_CONTROL, - ®ister_value); - if (ACPI_FAILURE(status)) { - goto unlock_and_exit; - } - - ACPI_DEBUG_PRINT((ACPI_DB_IO, - "PM2 control: Read %X from %8.8X%8.8X\n", - register_value, - ACPI_FORMAT_UINT64(acpi_gbl_FADT. - xpm2_control_block. - address))); - - ACPI_REGISTER_INSERT_VALUE(register_value, - bit_reg_info->bit_position, - bit_reg_info->access_bit_mask, - value); - - ACPI_DEBUG_PRINT((ACPI_DB_IO, - "About to write %4.4X to %8.8X%8.8X\n", - register_value, - ACPI_FORMAT_UINT64(acpi_gbl_FADT. - xpm2_control_block. - address))); - - status = acpi_hw_register_write(ACPI_REGISTER_PM2_CONTROL, - (u8) (register_value)); - break; - - default: - break; - } - - unlock_and_exit: - - acpi_os_release_lock(acpi_gbl_hardware_lock, lock_flags); - - /* Normalize the value that was read */ - - ACPI_DEBUG_EXEC(register_value = - ((register_value & bit_reg_info->access_bit_mask) >> - bit_reg_info->bit_position)); - - ACPI_DEBUG_PRINT((ACPI_DB_IO, - "Set bits: %8.8X actual %8.8X register %X\n", value, - register_value, bit_reg_info->parent_register)); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_set_register) - -/******************************************************************************* - * - * FUNCTION: acpi_get_sleep_type_data - * - * PARAMETERS: sleep_state - Numeric sleep state - * *sleep_type_a - Where SLP_TYPa is returned - * *sleep_type_b - Where SLP_TYPb is returned - * - * RETURN: Status - ACPI status - * - * DESCRIPTION: Obtain the SLP_TYPa and SLP_TYPb values for the requested sleep - * state. - * - ******************************************************************************/ -acpi_status -acpi_get_sleep_type_data(u8 sleep_state, u8 *sleep_type_a, u8 *sleep_type_b) -{ - acpi_status status = AE_OK; - struct acpi_evaluate_info *info; - - ACPI_FUNCTION_TRACE(acpi_get_sleep_type_data); - - /* Validate parameters */ - - if ((sleep_state > ACPI_S_STATES_MAX) || !sleep_type_a || !sleep_type_b) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Allocate the evaluation information block */ - - info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info)); - if (!info) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - info->pathname = - ACPI_CAST_PTR(char, acpi_gbl_sleep_state_names[sleep_state]); - - /* Evaluate the namespace object containing the values for this state */ - - status = acpi_ns_evaluate(info); - if (ACPI_FAILURE(status)) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "%s while evaluating SleepState [%s]\n", - acpi_format_exception(status), - info->pathname)); - - goto cleanup; - } - - /* Must have a return object */ - - if (!info->return_object) { - ACPI_ERROR((AE_INFO, "No Sleep State object returned from [%s]", - info->pathname)); - status = AE_NOT_EXIST; - } - - /* It must be of type Package */ - - else if (ACPI_GET_OBJECT_TYPE(info->return_object) != ACPI_TYPE_PACKAGE) { - ACPI_ERROR((AE_INFO, - "Sleep State return object is not a Package")); - status = AE_AML_OPERAND_TYPE; - } - - /* - * The package must have at least two elements. NOTE (March 2005): This - * goes against the current ACPI spec which defines this object as a - * package with one encoded DWORD element. However, existing practice - * by BIOS vendors seems to be to have 2 or more elements, at least - * one per sleep type (A/B). - */ - else if (info->return_object->package.count < 2) { - ACPI_ERROR((AE_INFO, - "Sleep State return package does not have at least two elements")); - status = AE_AML_NO_OPERAND; - } - - /* The first two elements must both be of type Integer */ - - else if ((ACPI_GET_OBJECT_TYPE(info->return_object->package.elements[0]) - != ACPI_TYPE_INTEGER) || - (ACPI_GET_OBJECT_TYPE(info->return_object->package.elements[1]) - != ACPI_TYPE_INTEGER)) { - ACPI_ERROR((AE_INFO, - "Sleep State return package elements are not both Integers (%s, %s)", - acpi_ut_get_object_type_name(info->return_object-> - package.elements[0]), - acpi_ut_get_object_type_name(info->return_object-> - package.elements[1]))); - status = AE_AML_OPERAND_TYPE; - } else { - /* Valid _Sx_ package size, type, and value */ - - *sleep_type_a = (u8) - (info->return_object->package.elements[0])->integer.value; - *sleep_type_b = (u8) - (info->return_object->package.elements[1])->integer.value; - } - - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "While evaluating SleepState [%s], bad Sleep object %p type %s", - info->pathname, info->return_object, - acpi_ut_get_object_type_name(info-> - return_object))); - } - - acpi_ut_remove_reference(info->return_object); - - cleanup: - ACPI_FREE(info); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_sleep_type_data) diff --git a/drivers/acpi/main.c b/drivers/acpi/main.c new file mode 100644 index 000000000000..d8242772de92 --- /dev/null +++ b/drivers/acpi/main.c @@ -0,0 +1,696 @@ +/* + * sleep.c - ACPI sleep support. + * + * Copyright (c) 2005 Alexey Starikovskiy + * Copyright (c) 2004 David Shaohua Li + * Copyright (c) 2000-2003 Patrick Mochel + * Copyright (c) 2003 Open Source Development Lab + * + * This file is released under the GPLv2. + * + */ + +#include +#include +#include +#include +#include +#include + +#include + +#include +#include +#include "sleep.h" + +u8 sleep_states[ACPI_S_STATE_COUNT]; + +static void acpi_sleep_tts_switch(u32 acpi_state) +{ + union acpi_object in_arg = { ACPI_TYPE_INTEGER }; + struct acpi_object_list arg_list = { 1, &in_arg }; + acpi_status status = AE_OK; + + in_arg.integer.value = acpi_state; + status = acpi_evaluate_object(NULL, "\\_TTS", &arg_list, NULL); + if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { + /* + * OS can't evaluate the _TTS object correctly. Some warning + * message will be printed. But it won't break anything. + */ + printk(KERN_NOTICE "Failure in evaluating _TTS object\n"); + } +} + +static int tts_notify_reboot(struct notifier_block *this, + unsigned long code, void *x) +{ + acpi_sleep_tts_switch(ACPI_STATE_S5); + return NOTIFY_DONE; +} + +static struct notifier_block tts_notifier = { + .notifier_call = tts_notify_reboot, + .next = NULL, + .priority = 0, +}; + +static int acpi_sleep_prepare(u32 acpi_state) +{ +#ifdef CONFIG_ACPI_SLEEP + /* do we have a wakeup address for S2 and S3? */ + if (acpi_state == ACPI_STATE_S3) { + if (!acpi_wakeup_address) { + return -EFAULT; + } + acpi_set_firmware_waking_vector( + (acpi_physical_address)acpi_wakeup_address); + + } + ACPI_FLUSH_CPU_CACHE(); + acpi_enable_wakeup_device_prep(acpi_state); +#endif + printk(KERN_INFO PREFIX "Preparing to enter system sleep state S%d\n", + acpi_state); + acpi_enter_sleep_state_prep(acpi_state); + return 0; +} + +#ifdef CONFIG_ACPI_SLEEP +static u32 acpi_target_sleep_state = ACPI_STATE_S0; +/* + * ACPI 1.0 wants us to execute _PTS before suspending devices, so we allow the + * user to request that behavior by using the 'acpi_old_suspend_ordering' + * kernel command line option that causes the following variable to be set. + */ +static bool old_suspend_ordering; + +void __init acpi_old_suspend_ordering(void) +{ + old_suspend_ordering = true; +} + +/* + * According to the ACPI specification the BIOS should make sure that ACPI is + * enabled and SCI_EN bit is set on wake-up from S1 - S3 sleep states. Still, + * some BIOSes don't do that and therefore we use acpi_enable() to enable ACPI + * on such systems during resume. Unfortunately that doesn't help in + * particularly pathological cases in which SCI_EN has to be set directly on + * resume, although the specification states very clearly that this flag is + * owned by the hardware. The set_sci_en_on_resume variable will be set in such + * cases. + */ +static bool set_sci_en_on_resume; + +/** + * acpi_pm_disable_gpes - Disable the GPEs. + */ +static int acpi_pm_disable_gpes(void) +{ + acpi_disable_all_gpes(); + return 0; +} + +/** + * __acpi_pm_prepare - Prepare the platform to enter the target state. + * + * If necessary, set the firmware waking vector and do arch-specific + * nastiness to get the wakeup code to the waking vector. + */ +static int __acpi_pm_prepare(void) +{ + int error = acpi_sleep_prepare(acpi_target_sleep_state); + + if (error) + acpi_target_sleep_state = ACPI_STATE_S0; + return error; +} + +/** + * acpi_pm_prepare - Prepare the platform to enter the target sleep + * state and disable the GPEs. + */ +static int acpi_pm_prepare(void) +{ + int error = __acpi_pm_prepare(); + + if (!error) + acpi_disable_all_gpes(); + return error; +} + +/** + * acpi_pm_finish - Instruct the platform to leave a sleep state. + * + * This is called after we wake back up (or if entering the sleep state + * failed). + */ +static void acpi_pm_finish(void) +{ + u32 acpi_state = acpi_target_sleep_state; + + if (acpi_state == ACPI_STATE_S0) + return; + + printk(KERN_INFO PREFIX "Waking up from system sleep state S%d\n", + acpi_state); + acpi_disable_wakeup_device(acpi_state); + acpi_leave_sleep_state(acpi_state); + + /* reset firmware waking vector */ + acpi_set_firmware_waking_vector((acpi_physical_address) 0); + + acpi_target_sleep_state = ACPI_STATE_S0; +} + +/** + * acpi_pm_end - Finish up suspend sequence. + */ +static void acpi_pm_end(void) +{ + /* + * This is necessary in case acpi_pm_finish() is not called during a + * failing transition to a sleep state. + */ + acpi_target_sleep_state = ACPI_STATE_S0; + acpi_sleep_tts_switch(acpi_target_sleep_state); +} +#else /* !CONFIG_ACPI_SLEEP */ +#define acpi_target_sleep_state ACPI_STATE_S0 +#endif /* CONFIG_ACPI_SLEEP */ + +#ifdef CONFIG_SUSPEND +extern void do_suspend_lowlevel(void); + +static u32 acpi_suspend_states[] = { + [PM_SUSPEND_ON] = ACPI_STATE_S0, + [PM_SUSPEND_STANDBY] = ACPI_STATE_S1, + [PM_SUSPEND_MEM] = ACPI_STATE_S3, + [PM_SUSPEND_MAX] = ACPI_STATE_S5 +}; + +/** + * acpi_suspend_begin - Set the target system sleep state to the state + * associated with given @pm_state, if supported. + */ +static int acpi_suspend_begin(suspend_state_t pm_state) +{ + u32 acpi_state = acpi_suspend_states[pm_state]; + int error = 0; + + if (sleep_states[acpi_state]) { + acpi_target_sleep_state = acpi_state; + acpi_sleep_tts_switch(acpi_target_sleep_state); + } else { + printk(KERN_ERR "ACPI does not support this state: %d\n", + pm_state); + error = -ENOSYS; + } + return error; +} + +/** + * acpi_suspend_enter - Actually enter a sleep state. + * @pm_state: ignored + * + * Flush caches and go to sleep. For STR we have to call arch-specific + * assembly, which in turn call acpi_enter_sleep_state(). + * It's unfortunate, but it works. Please fix if you're feeling frisky. + */ +static int acpi_suspend_enter(suspend_state_t pm_state) +{ + acpi_status status = AE_OK; + unsigned long flags = 0; + u32 acpi_state = acpi_target_sleep_state; + + ACPI_FLUSH_CPU_CACHE(); + + /* Do arch specific saving of state. */ + if (acpi_state == ACPI_STATE_S3) { + int error = acpi_save_state_mem(); + + if (error) + return error; + } + + local_irq_save(flags); + acpi_enable_wakeup_device(acpi_state); + switch (acpi_state) { + case ACPI_STATE_S1: + barrier(); + status = acpi_enter_sleep_state(acpi_state); + break; + + case ACPI_STATE_S3: + do_suspend_lowlevel(); + break; + } + + /* If ACPI is not enabled by the BIOS, we need to enable it here. */ + if (set_sci_en_on_resume) + acpi_set_register(ACPI_BITREG_SCI_ENABLE, 1); + else + acpi_enable(); + + /* Reprogram control registers and execute _BFS */ + acpi_leave_sleep_state_prep(acpi_state); + + /* ACPI 3.0 specs (P62) says that it's the responsibility + * of the OSPM to clear the status bit [ implying that the + * POWER_BUTTON event should not reach userspace ] + */ + if (ACPI_SUCCESS(status) && (acpi_state == ACPI_STATE_S3)) + acpi_clear_event(ACPI_EVENT_POWER_BUTTON); + + /* + * Disable and clear GPE status before interrupt is enabled. Some GPEs + * (like wakeup GPE) haven't handler, this can avoid such GPE misfire. + * acpi_leave_sleep_state will reenable specific GPEs later + */ + acpi_disable_all_gpes(); + + local_irq_restore(flags); + printk(KERN_DEBUG "Back to C!\n"); + + /* restore processor state */ + if (acpi_state == ACPI_STATE_S3) + acpi_restore_state_mem(); + + return ACPI_SUCCESS(status) ? 0 : -EFAULT; +} + +static int acpi_suspend_state_valid(suspend_state_t pm_state) +{ + u32 acpi_state; + + switch (pm_state) { + case PM_SUSPEND_ON: + case PM_SUSPEND_STANDBY: + case PM_SUSPEND_MEM: + acpi_state = acpi_suspend_states[pm_state]; + + return sleep_states[acpi_state]; + default: + return 0; + } +} + +static struct platform_suspend_ops acpi_suspend_ops = { + .valid = acpi_suspend_state_valid, + .begin = acpi_suspend_begin, + .prepare = acpi_pm_prepare, + .enter = acpi_suspend_enter, + .finish = acpi_pm_finish, + .end = acpi_pm_end, +}; + +/** + * acpi_suspend_begin_old - Set the target system sleep state to the + * state associated with given @pm_state, if supported, and + * execute the _PTS control method. This function is used if the + * pre-ACPI 2.0 suspend ordering has been requested. + */ +static int acpi_suspend_begin_old(suspend_state_t pm_state) +{ + int error = acpi_suspend_begin(pm_state); + + if (!error) + error = __acpi_pm_prepare(); + return error; +} + +/* + * The following callbacks are used if the pre-ACPI 2.0 suspend ordering has + * been requested. + */ +static struct platform_suspend_ops acpi_suspend_ops_old = { + .valid = acpi_suspend_state_valid, + .begin = acpi_suspend_begin_old, + .prepare = acpi_pm_disable_gpes, + .enter = acpi_suspend_enter, + .finish = acpi_pm_finish, + .end = acpi_pm_end, + .recover = acpi_pm_finish, +}; + +static int __init init_old_suspend_ordering(const struct dmi_system_id *d) +{ + old_suspend_ordering = true; + return 0; +} + +static int __init init_set_sci_en_on_resume(const struct dmi_system_id *d) +{ + set_sci_en_on_resume = true; + return 0; +} + +static struct dmi_system_id __initdata acpisleep_dmi_table[] = { + { + .callback = init_old_suspend_ordering, + .ident = "Abit KN9 (nForce4 variant)", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "http://www.abit.com.tw/"), + DMI_MATCH(DMI_BOARD_NAME, "KN9 Series(NF-CK804)"), + }, + }, + { + .callback = init_old_suspend_ordering, + .ident = "HP xw4600 Workstation", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP xw4600 Workstation"), + }, + }, + { + .callback = init_set_sci_en_on_resume, + .ident = "Apple MacBook 1,1", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "MacBook1,1"), + }, + }, + { + .callback = init_set_sci_en_on_resume, + .ident = "Apple MacMini 1,1", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Macmini1,1"), + }, + }, + {}, +}; +#endif /* CONFIG_SUSPEND */ + +#ifdef CONFIG_HIBERNATION +static unsigned long s4_hardware_signature; +static struct acpi_table_facs *facs; +static bool nosigcheck; + +void __init acpi_no_s4_hw_signature(void) +{ + nosigcheck = true; +} + +static int acpi_hibernation_begin(void) +{ + acpi_target_sleep_state = ACPI_STATE_S4; + acpi_sleep_tts_switch(acpi_target_sleep_state); + return 0; +} + +static int acpi_hibernation_enter(void) +{ + acpi_status status = AE_OK; + unsigned long flags = 0; + + ACPI_FLUSH_CPU_CACHE(); + + local_irq_save(flags); + acpi_enable_wakeup_device(ACPI_STATE_S4); + /* This shouldn't return. If it returns, we have a problem */ + status = acpi_enter_sleep_state(ACPI_STATE_S4); + /* Reprogram control registers and execute _BFS */ + acpi_leave_sleep_state_prep(ACPI_STATE_S4); + local_irq_restore(flags); + + return ACPI_SUCCESS(status) ? 0 : -EFAULT; +} + +static void acpi_hibernation_leave(void) +{ + /* + * If ACPI is not enabled by the BIOS and the boot kernel, we need to + * enable it here. + */ + acpi_enable(); + /* Reprogram control registers and execute _BFS */ + acpi_leave_sleep_state_prep(ACPI_STATE_S4); + /* Check the hardware signature */ + if (facs && s4_hardware_signature != facs->hardware_signature) { + printk(KERN_EMERG "ACPI: Hardware changed while hibernated, " + "cannot resume!\n"); + panic("ACPI S4 hardware signature mismatch"); + } +} + +static void acpi_pm_enable_gpes(void) +{ + acpi_enable_all_runtime_gpes(); +} + +static struct platform_hibernation_ops acpi_hibernation_ops = { + .begin = acpi_hibernation_begin, + .end = acpi_pm_end, + .pre_snapshot = acpi_pm_prepare, + .finish = acpi_pm_finish, + .prepare = acpi_pm_prepare, + .enter = acpi_hibernation_enter, + .leave = acpi_hibernation_leave, + .pre_restore = acpi_pm_disable_gpes, + .restore_cleanup = acpi_pm_enable_gpes, +}; + +/** + * acpi_hibernation_begin_old - Set the target system sleep state to + * ACPI_STATE_S4 and execute the _PTS control method. This + * function is used if the pre-ACPI 2.0 suspend ordering has been + * requested. + */ +static int acpi_hibernation_begin_old(void) +{ + int error; + /* + * The _TTS object should always be evaluated before the _PTS object. + * When the old_suspended_ordering is true, the _PTS object is + * evaluated in the acpi_sleep_prepare. + */ + acpi_sleep_tts_switch(ACPI_STATE_S4); + + error = acpi_sleep_prepare(ACPI_STATE_S4); + + if (!error) + acpi_target_sleep_state = ACPI_STATE_S4; + return error; +} + +/* + * The following callbacks are used if the pre-ACPI 2.0 suspend ordering has + * been requested. + */ +static struct platform_hibernation_ops acpi_hibernation_ops_old = { + .begin = acpi_hibernation_begin_old, + .end = acpi_pm_end, + .pre_snapshot = acpi_pm_disable_gpes, + .finish = acpi_pm_finish, + .prepare = acpi_pm_disable_gpes, + .enter = acpi_hibernation_enter, + .leave = acpi_hibernation_leave, + .pre_restore = acpi_pm_disable_gpes, + .restore_cleanup = acpi_pm_enable_gpes, + .recover = acpi_pm_finish, +}; +#endif /* CONFIG_HIBERNATION */ + +int acpi_suspend(u32 acpi_state) +{ + suspend_state_t states[] = { + [1] = PM_SUSPEND_STANDBY, + [3] = PM_SUSPEND_MEM, + [5] = PM_SUSPEND_MAX + }; + + if (acpi_state < 6 && states[acpi_state]) + return pm_suspend(states[acpi_state]); + if (acpi_state == 4) + return hibernate(); + return -EINVAL; +} + +#ifdef CONFIG_PM_SLEEP +/** + * acpi_pm_device_sleep_state - return preferred power state of ACPI device + * in the system sleep state given by %acpi_target_sleep_state + * @dev: device to examine; its driver model wakeup flags control + * whether it should be able to wake up the system + * @d_min_p: used to store the upper limit of allowed states range + * Return value: preferred power state of the device on success, -ENODEV on + * failure (ie. if there's no 'struct acpi_device' for @dev) + * + * Find the lowest power (highest number) ACPI device power state that + * device @dev can be in while the system is in the sleep state represented + * by %acpi_target_sleep_state. If @wake is nonzero, the device should be + * able to wake up the system from this sleep state. If @d_min_p is set, + * the highest power (lowest number) device power state of @dev allowed + * in this system sleep state is stored at the location pointed to by it. + * + * The caller must ensure that @dev is valid before using this function. + * The caller is also responsible for figuring out if the device is + * supposed to be able to wake up the system and passing this information + * via @wake. + */ + +int acpi_pm_device_sleep_state(struct device *dev, int *d_min_p) +{ + acpi_handle handle = DEVICE_ACPI_HANDLE(dev); + struct acpi_device *adev; + char acpi_method[] = "_SxD"; + unsigned long long d_min, d_max; + + if (!handle || ACPI_FAILURE(acpi_bus_get_device(handle, &adev))) { + printk(KERN_DEBUG "ACPI handle has no context!\n"); + return -ENODEV; + } + + acpi_method[2] = '0' + acpi_target_sleep_state; + /* + * If the sleep state is S0, we will return D3, but if the device has + * _S0W, we will use the value from _S0W + */ + d_min = ACPI_STATE_D0; + d_max = ACPI_STATE_D3; + + /* + * If present, _SxD methods return the minimum D-state (highest power + * state) we can use for the corresponding S-states. Otherwise, the + * minimum D-state is D0 (ACPI 3.x). + * + * NOTE: We rely on acpi_evaluate_integer() not clobbering the integer + * provided -- that's our fault recovery, we ignore retval. + */ + if (acpi_target_sleep_state > ACPI_STATE_S0) + acpi_evaluate_integer(handle, acpi_method, NULL, &d_min); + + /* + * If _PRW says we can wake up the system from the target sleep state, + * the D-state returned by _SxD is sufficient for that (we assume a + * wakeup-aware driver if wake is set). Still, if _SxW exists + * (ACPI 3.x), it should return the maximum (lowest power) D-state that + * can wake the system. _S0W may be valid, too. + */ + if (acpi_target_sleep_state == ACPI_STATE_S0 || + (device_may_wakeup(dev) && adev->wakeup.state.enabled && + adev->wakeup.sleep_state <= acpi_target_sleep_state)) { + acpi_status status; + + acpi_method[3] = 'W'; + status = acpi_evaluate_integer(handle, acpi_method, NULL, + &d_max); + if (ACPI_FAILURE(status)) { + d_max = d_min; + } else if (d_max < d_min) { + /* Warn the user of the broken DSDT */ + printk(KERN_WARNING "ACPI: Wrong value from %s\n", + acpi_method); + /* Sanitize it */ + d_min = d_max; + } + } + + if (d_min_p) + *d_min_p = d_min; + return d_max; +} + +/** + * acpi_pm_device_sleep_wake - enable or disable the system wake-up + * capability of given device + * @dev: device to handle + * @enable: 'true' - enable, 'false' - disable the wake-up capability + */ +int acpi_pm_device_sleep_wake(struct device *dev, bool enable) +{ + acpi_handle handle; + struct acpi_device *adev; + + if (!device_may_wakeup(dev)) + return -EINVAL; + + handle = DEVICE_ACPI_HANDLE(dev); + if (!handle || ACPI_FAILURE(acpi_bus_get_device(handle, &adev))) { + printk(KERN_DEBUG "ACPI handle has no context!\n"); + return -ENODEV; + } + + return enable ? + acpi_enable_wakeup_device_power(adev, acpi_target_sleep_state) : + acpi_disable_wakeup_device_power(adev); +} +#endif + +static void acpi_power_off_prepare(void) +{ + /* Prepare to power off the system */ + acpi_sleep_prepare(ACPI_STATE_S5); + acpi_disable_all_gpes(); +} + +static void acpi_power_off(void) +{ + /* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */ + printk("%s called\n", __func__); + local_irq_disable(); + acpi_enable_wakeup_device(ACPI_STATE_S5); + acpi_enter_sleep_state(ACPI_STATE_S5); +} + +int __init acpi_sleep_init(void) +{ + acpi_status status; + u8 type_a, type_b; +#ifdef CONFIG_SUSPEND + int i = 0; + + dmi_check_system(acpisleep_dmi_table); +#endif + + if (acpi_disabled) + return 0; + + sleep_states[ACPI_STATE_S0] = 1; + printk(KERN_INFO PREFIX "(supports S0"); + +#ifdef CONFIG_SUSPEND + for (i = ACPI_STATE_S1; i < ACPI_STATE_S4; i++) { + status = acpi_get_sleep_type_data(i, &type_a, &type_b); + if (ACPI_SUCCESS(status)) { + sleep_states[i] = 1; + printk(" S%d", i); + } + } + + suspend_set_ops(old_suspend_ordering ? + &acpi_suspend_ops_old : &acpi_suspend_ops); +#endif + +#ifdef CONFIG_HIBERNATION + status = acpi_get_sleep_type_data(ACPI_STATE_S4, &type_a, &type_b); + if (ACPI_SUCCESS(status)) { + hibernation_set_ops(old_suspend_ordering ? + &acpi_hibernation_ops_old : &acpi_hibernation_ops); + sleep_states[ACPI_STATE_S4] = 1; + printk(" S4"); + if (!nosigcheck) { + acpi_get_table(ACPI_SIG_FACS, 1, + (struct acpi_table_header **)&facs); + if (facs) + s4_hardware_signature = + facs->hardware_signature; + } + } +#endif + status = acpi_get_sleep_type_data(ACPI_STATE_S5, &type_a, &type_b); + if (ACPI_SUCCESS(status)) { + sleep_states[ACPI_STATE_S5] = 1; + printk(" S5"); + pm_power_off_prepare = acpi_power_off_prepare; + pm_power_off = acpi_power_off; + } + printk(")\n"); + /* + * Register the tts_notifier to reboot notifier list so that the _TTS + * object can also be evaluated when the system enters S5. + */ + register_reboot_notifier(&tts_notifier); + return 0; +} diff --git a/drivers/acpi/namespace/Makefile b/drivers/acpi/namespace/Makefile deleted file mode 100644 index 371a2daf837f..000000000000 --- a/drivers/acpi/namespace/Makefile +++ /dev/null @@ -1,12 +0,0 @@ -# -# Makefile for all Linux ACPI interpreter subdirectories -# - -obj-y := nsaccess.o nsload.o nssearch.o nsxfeval.o \ - nsalloc.o nseval.o nsnames.o nsutils.o nsxfname.o \ - nsdump.o nsinit.o nsobject.o nswalk.o nsxfobj.o \ - nsparse.o nspredef.o - -obj-$(ACPI_FUTURE_USAGE) += nsdumpdv.o - -EXTRA_CFLAGS += $(ACPI_CFLAGS) diff --git a/drivers/acpi/namespace/nsaccess.c b/drivers/acpi/namespace/nsaccess.c deleted file mode 100644 index 7954640e69cb..000000000000 --- a/drivers/acpi/namespace/nsaccess.c +++ /dev/null @@ -1,676 +0,0 @@ -/******************************************************************************* - * - * Module Name: nsaccess - Top-level functions for accessing ACPI namespace - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_NAMESPACE -ACPI_MODULE_NAME("nsaccess") - -/******************************************************************************* - * - * FUNCTION: acpi_ns_root_initialize - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Allocate and initialize the default root named objects - * - * MUTEX: Locks namespace for entire execution - * - ******************************************************************************/ -acpi_status acpi_ns_root_initialize(void) -{ - acpi_status status; - const struct acpi_predefined_names *init_val = NULL; - struct acpi_namespace_node *new_node; - union acpi_operand_object *obj_desc; - acpi_string val = NULL; - - ACPI_FUNCTION_TRACE(ns_root_initialize); - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * The global root ptr is initially NULL, so a non-NULL value indicates - * that acpi_ns_root_initialize() has already been called; just return. - */ - if (acpi_gbl_root_node) { - status = AE_OK; - goto unlock_and_exit; - } - - /* - * Tell the rest of the subsystem that the root is initialized - * (This is OK because the namespace is locked) - */ - acpi_gbl_root_node = &acpi_gbl_root_node_struct; - - /* Enter the pre-defined names in the name table */ - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Entering predefined entries into namespace\n")); - - for (init_val = acpi_gbl_pre_defined_names; init_val->name; init_val++) { - - /* _OSI is optional for now, will be permanent later */ - - if (!ACPI_STRCMP(init_val->name, "_OSI") - && !acpi_gbl_create_osi_method) { - continue; - } - - status = acpi_ns_lookup(NULL, init_val->name, init_val->type, - ACPI_IMODE_LOAD_PASS2, - ACPI_NS_NO_UPSEARCH, NULL, &new_node); - - if (ACPI_FAILURE(status) || (!new_node)) { /* Must be on same line for code converter */ - ACPI_EXCEPTION((AE_INFO, status, - "Could not create predefined name %s", - init_val->name)); - } - - /* - * Name entered successfully. - * If entry in pre_defined_names[] specifies an - * initial value, create the initial value. - */ - if (init_val->val) { - status = acpi_os_predefined_override(init_val, &val); - if (ACPI_FAILURE(status)) { - ACPI_ERROR((AE_INFO, - "Could not override predefined %s", - init_val->name)); - } - - if (!val) { - val = init_val->val; - } - - /* - * Entry requests an initial value, allocate a - * descriptor for it. - */ - obj_desc = - acpi_ut_create_internal_object(init_val->type); - if (!obj_desc) { - status = AE_NO_MEMORY; - goto unlock_and_exit; - } - - /* - * Convert value string from table entry to - * internal representation. Only types actually - * used for initial values are implemented here. - */ - switch (init_val->type) { - case ACPI_TYPE_METHOD: - obj_desc->method.param_count = - (u8) ACPI_TO_INTEGER(val); - obj_desc->common.flags |= AOPOBJ_DATA_VALID; - -#if defined (ACPI_ASL_COMPILER) - - /* Save the parameter count for the i_aSL compiler */ - - new_node->value = obj_desc->method.param_count; -#else - /* Mark this as a very SPECIAL method */ - - obj_desc->method.method_flags = - AML_METHOD_INTERNAL_ONLY; - obj_desc->method.implementation = - acpi_ut_osi_implementation; -#endif - break; - - case ACPI_TYPE_INTEGER: - - obj_desc->integer.value = ACPI_TO_INTEGER(val); - break; - - case ACPI_TYPE_STRING: - - /* - * Build an object around the static string - */ - obj_desc->string.length = - (u32) ACPI_STRLEN(val); - obj_desc->string.pointer = val; - obj_desc->common.flags |= AOPOBJ_STATIC_POINTER; - break; - - case ACPI_TYPE_MUTEX: - - obj_desc->mutex.node = new_node; - obj_desc->mutex.sync_level = - (u8) (ACPI_TO_INTEGER(val) - 1); - - /* Create a mutex */ - - status = - acpi_os_create_mutex(&obj_desc->mutex. - os_mutex); - if (ACPI_FAILURE(status)) { - acpi_ut_remove_reference(obj_desc); - goto unlock_and_exit; - } - - /* Special case for ACPI Global Lock */ - - if (ACPI_STRCMP(init_val->name, "_GL_") == 0) { - acpi_gbl_global_lock_mutex = obj_desc; - - /* Create additional counting semaphore for global lock */ - - status = - acpi_os_create_semaphore(1, 0, - &acpi_gbl_global_lock_semaphore); - if (ACPI_FAILURE(status)) { - acpi_ut_remove_reference - (obj_desc); - goto unlock_and_exit; - } - } - break; - - default: - - ACPI_ERROR((AE_INFO, - "Unsupported initial type value %X", - init_val->type)); - acpi_ut_remove_reference(obj_desc); - obj_desc = NULL; - continue; - } - - /* Store pointer to value descriptor in the Node */ - - status = acpi_ns_attach_object(new_node, obj_desc, - ACPI_GET_OBJECT_TYPE - (obj_desc)); - - /* Remove local reference to the object */ - - acpi_ut_remove_reference(obj_desc); - } - } - - unlock_and_exit: - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - - /* Save a handle to "_GPE", it is always present */ - - if (ACPI_SUCCESS(status)) { - status = acpi_ns_get_node(NULL, "\\_GPE", ACPI_NS_NO_UPSEARCH, - &acpi_gbl_fadt_gpe_device); - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_lookup - * - * PARAMETERS: scope_info - Current scope info block - * Pathname - Search pathname, in internal format - * (as represented in the AML stream) - * Type - Type associated with name - * interpreter_mode - IMODE_LOAD_PASS2 => add name if not found - * Flags - Flags describing the search restrictions - * walk_state - Current state of the walk - * return_node - Where the Node is placed (if found - * or created successfully) - * - * RETURN: Status - * - * DESCRIPTION: Find or enter the passed name in the name space. - * Log an error if name not found in Exec mode. - * - * MUTEX: Assumes namespace is locked. - * - ******************************************************************************/ - -acpi_status -acpi_ns_lookup(union acpi_generic_state *scope_info, - char *pathname, - acpi_object_type type, - acpi_interpreter_mode interpreter_mode, - u32 flags, - struct acpi_walk_state *walk_state, - struct acpi_namespace_node **return_node) -{ - acpi_status status; - char *path = pathname; - struct acpi_namespace_node *prefix_node; - struct acpi_namespace_node *current_node = NULL; - struct acpi_namespace_node *this_node = NULL; - u32 num_segments; - u32 num_carats; - acpi_name simple_name; - acpi_object_type type_to_check_for; - acpi_object_type this_search_type; - u32 search_parent_flag = ACPI_NS_SEARCH_PARENT; - u32 local_flags; - - ACPI_FUNCTION_TRACE(ns_lookup); - - if (!return_node) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - local_flags = flags & ~(ACPI_NS_ERROR_IF_FOUND | ACPI_NS_SEARCH_PARENT); - *return_node = ACPI_ENTRY_NOT_FOUND; - acpi_gbl_ns_lookup_count++; - - if (!acpi_gbl_root_node) { - return_ACPI_STATUS(AE_NO_NAMESPACE); - } - - /* - * Get the prefix scope. - * A null scope means use the root scope - */ - if ((!scope_info) || (!scope_info->scope.node)) { - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Null scope prefix, using root node (%p)\n", - acpi_gbl_root_node)); - - prefix_node = acpi_gbl_root_node; - } else { - prefix_node = scope_info->scope.node; - if (ACPI_GET_DESCRIPTOR_TYPE(prefix_node) != - ACPI_DESC_TYPE_NAMED) { - ACPI_ERROR((AE_INFO, "%p is not a namespace node [%s]", - prefix_node, - acpi_ut_get_descriptor_name(prefix_node))); - return_ACPI_STATUS(AE_AML_INTERNAL); - } - - if (!(flags & ACPI_NS_PREFIX_IS_SCOPE)) { - /* - * This node might not be a actual "scope" node (such as a - * Device/Method, etc.) It could be a Package or other object node. - * Backup up the tree to find the containing scope node. - */ - while (!acpi_ns_opens_scope(prefix_node->type) && - prefix_node->type != ACPI_TYPE_ANY) { - prefix_node = - acpi_ns_get_parent_node(prefix_node); - } - } - } - - /* Save type TBD: may be no longer necessary */ - - type_to_check_for = type; - - /* - * Begin examination of the actual pathname - */ - if (!pathname) { - - /* A Null name_path is allowed and refers to the root */ - - num_segments = 0; - this_node = acpi_gbl_root_node; - path = ""; - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Null Pathname (Zero segments), Flags=%X\n", - flags)); - } else { - /* - * Name pointer is valid (and must be in internal name format) - * - * Check for scope prefixes: - * - * As represented in the AML stream, a namepath consists of an - * optional scope prefix followed by a name segment part. - * - * If present, the scope prefix is either a Root Prefix (in - * which case the name is fully qualified), or one or more - * Parent Prefixes (in which case the name's scope is relative - * to the current scope). - */ - if (*path == (u8) AML_ROOT_PREFIX) { - - /* Pathname is fully qualified, start from the root */ - - this_node = acpi_gbl_root_node; - search_parent_flag = ACPI_NS_NO_UPSEARCH; - - /* Point to name segment part */ - - path++; - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Path is absolute from root [%p]\n", - this_node)); - } else { - /* Pathname is relative to current scope, start there */ - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Searching relative to prefix scope [%4.4s] (%p)\n", - acpi_ut_get_node_name(prefix_node), - prefix_node)); - - /* - * Handle multiple Parent Prefixes (carat) by just getting - * the parent node for each prefix instance. - */ - this_node = prefix_node; - num_carats = 0; - while (*path == (u8) AML_PARENT_PREFIX) { - - /* Name is fully qualified, no search rules apply */ - - search_parent_flag = ACPI_NS_NO_UPSEARCH; - /* - * Point past this prefix to the name segment - * part or the next Parent Prefix - */ - path++; - - /* Backup to the parent node */ - - num_carats++; - this_node = acpi_ns_get_parent_node(this_node); - if (!this_node) { - - /* Current scope has no parent scope */ - - ACPI_ERROR((AE_INFO, - "ACPI path has too many parent prefixes (^) - reached beyond root node")); - return_ACPI_STATUS(AE_NOT_FOUND); - } - } - - if (search_parent_flag == ACPI_NS_NO_UPSEARCH) { - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Search scope is [%4.4s], path has %d carat(s)\n", - acpi_ut_get_node_name - (this_node), num_carats)); - } - } - - /* - * Determine the number of ACPI name segments in this pathname. - * - * The segment part consists of either: - * - A Null name segment (0) - * - A dual_name_prefix followed by two 4-byte name segments - * - A multi_name_prefix followed by a byte indicating the - * number of segments and the segments themselves. - * - A single 4-byte name segment - * - * Examine the name prefix opcode, if any, to determine the number of - * segments. - */ - switch (*path) { - case 0: - /* - * Null name after a root or parent prefixes. We already - * have the correct target node and there are no name segments. - */ - num_segments = 0; - type = this_node->type; - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Prefix-only Pathname (Zero name segments), Flags=%X\n", - flags)); - break; - - case AML_DUAL_NAME_PREFIX: - - /* More than one name_seg, search rules do not apply */ - - search_parent_flag = ACPI_NS_NO_UPSEARCH; - - /* Two segments, point to first name segment */ - - num_segments = 2; - path++; - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Dual Pathname (2 segments, Flags=%X)\n", - flags)); - break; - - case AML_MULTI_NAME_PREFIX_OP: - - /* More than one name_seg, search rules do not apply */ - - search_parent_flag = ACPI_NS_NO_UPSEARCH; - - /* Extract segment count, point to first name segment */ - - path++; - num_segments = (u32) (u8) * path; - path++; - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Multi Pathname (%d Segments, Flags=%X)\n", - num_segments, flags)); - break; - - default: - /* - * Not a Null name, no Dual or Multi prefix, hence there is - * only one name segment and Pathname is already pointing to it. - */ - num_segments = 1; - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Simple Pathname (1 segment, Flags=%X)\n", - flags)); - break; - } - - ACPI_DEBUG_EXEC(acpi_ns_print_pathname(num_segments, path)); - } - - /* - * Search namespace for each segment of the name. Loop through and - * verify (or add to the namespace) each name segment. - * - * The object type is significant only at the last name - * segment. (We don't care about the types along the path, only - * the type of the final target object.) - */ - this_search_type = ACPI_TYPE_ANY; - current_node = this_node; - while (num_segments && current_node) { - num_segments--; - if (!num_segments) { - /* - * This is the last segment, enable typechecking - */ - this_search_type = type; - - /* - * Only allow automatic parent search (search rules) if the caller - * requested it AND we have a single, non-fully-qualified name_seg - */ - if ((search_parent_flag != ACPI_NS_NO_UPSEARCH) && - (flags & ACPI_NS_SEARCH_PARENT)) { - local_flags |= ACPI_NS_SEARCH_PARENT; - } - - /* Set error flag according to caller */ - - if (flags & ACPI_NS_ERROR_IF_FOUND) { - local_flags |= ACPI_NS_ERROR_IF_FOUND; - } - } - - /* Extract one ACPI name from the front of the pathname */ - - ACPI_MOVE_32_TO_32(&simple_name, path); - - /* Try to find the single (4 character) ACPI name */ - - status = - acpi_ns_search_and_enter(simple_name, walk_state, - current_node, interpreter_mode, - this_search_type, local_flags, - &this_node); - if (ACPI_FAILURE(status)) { - if (status == AE_NOT_FOUND) { - - /* Name not found in ACPI namespace */ - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Name [%4.4s] not found in scope [%4.4s] %p\n", - (char *)&simple_name, - (char *)¤t_node->name, - current_node)); - } - - *return_node = this_node; - return_ACPI_STATUS(status); - } - - /* More segments to follow? */ - - if (num_segments > 0) { - /* - * If we have an alias to an object that opens a scope (such as a - * device or processor), we need to dereference the alias here so that - * we can access any children of the original node (via the remaining - * segments). - */ - if (this_node->type == ACPI_TYPE_LOCAL_ALIAS) { - if (!this_node->object) { - return_ACPI_STATUS(AE_NOT_EXIST); - } - - if (acpi_ns_opens_scope - (((struct acpi_namespace_node *)this_node-> - object)->type)) { - this_node = - (struct acpi_namespace_node *) - this_node->object; - } - } - } - - /* Special handling for the last segment (num_segments == 0) */ - - else { - /* - * Sanity typecheck of the target object: - * - * If 1) This is the last segment (num_segments == 0) - * 2) And we are looking for a specific type - * (Not checking for TYPE_ANY) - * 3) Which is not an alias - * 4) Which is not a local type (TYPE_SCOPE) - * 5) And the type of target object is known (not TYPE_ANY) - * 6) And target object does not match what we are looking for - * - * Then we have a type mismatch. Just warn and ignore it. - */ - if ((type_to_check_for != ACPI_TYPE_ANY) && - (type_to_check_for != ACPI_TYPE_LOCAL_ALIAS) && - (type_to_check_for != ACPI_TYPE_LOCAL_METHOD_ALIAS) - && (type_to_check_for != ACPI_TYPE_LOCAL_SCOPE) - && (this_node->type != ACPI_TYPE_ANY) - && (this_node->type != type_to_check_for)) { - - /* Complain about a type mismatch */ - - ACPI_WARNING((AE_INFO, - "NsLookup: Type mismatch on %4.4s (%s), searching for (%s)", - ACPI_CAST_PTR(char, &simple_name), - acpi_ut_get_type_name(this_node-> - type), - acpi_ut_get_type_name - (type_to_check_for))); - } - - /* - * If this is the last name segment and we are not looking for a - * specific type, but the type of found object is known, use that type - * to (later) see if it opens a scope. - */ - if (type == ACPI_TYPE_ANY) { - type = this_node->type; - } - } - - /* Point to next name segment and make this node current */ - - path += ACPI_NAME_SIZE; - current_node = this_node; - } - - /* - * Always check if we need to open a new scope - */ - if (!(flags & ACPI_NS_DONT_OPEN_SCOPE) && (walk_state)) { - /* - * If entry is a type which opens a scope, push the new scope on the - * scope stack. - */ - if (acpi_ns_opens_scope(type)) { - status = - acpi_ds_scope_stack_push(this_node, type, - walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - } - - *return_node = this_node; - return_ACPI_STATUS(AE_OK); -} diff --git a/drivers/acpi/namespace/nsalloc.c b/drivers/acpi/namespace/nsalloc.c deleted file mode 100644 index cb2afbf4e457..000000000000 --- a/drivers/acpi/namespace/nsalloc.c +++ /dev/null @@ -1,497 +0,0 @@ -/******************************************************************************* - * - * Module Name: nsalloc - Namespace allocation and deletion utilities - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_NAMESPACE -ACPI_MODULE_NAME("nsalloc") - -/******************************************************************************* - * - * FUNCTION: acpi_ns_create_node - * - * PARAMETERS: Name - Name of the new node (4 char ACPI name) - * - * RETURN: New namespace node (Null on failure) - * - * DESCRIPTION: Create a namespace node - * - ******************************************************************************/ -struct acpi_namespace_node *acpi_ns_create_node(u32 name) -{ - struct acpi_namespace_node *node; -#ifdef ACPI_DBG_TRACK_ALLOCATIONS - u32 temp; -#endif - - ACPI_FUNCTION_TRACE(ns_create_node); - - node = acpi_os_acquire_object(acpi_gbl_namespace_cache); - if (!node) { - return_PTR(NULL); - } - - ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_allocated++); - -#ifdef ACPI_DBG_TRACK_ALLOCATIONS - temp = - acpi_gbl_ns_node_list->total_allocated - - acpi_gbl_ns_node_list->total_freed; - if (temp > acpi_gbl_ns_node_list->max_occupied) { - acpi_gbl_ns_node_list->max_occupied = temp; - } -#endif - - node->name.integer = name; - ACPI_SET_DESCRIPTOR_TYPE(node, ACPI_DESC_TYPE_NAMED); - return_PTR(node); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_delete_node - * - * PARAMETERS: Node - Node to be deleted - * - * RETURN: None - * - * DESCRIPTION: Delete a namespace node - * - ******************************************************************************/ - -void acpi_ns_delete_node(struct acpi_namespace_node *node) -{ - struct acpi_namespace_node *parent_node; - struct acpi_namespace_node *prev_node; - struct acpi_namespace_node *next_node; - - ACPI_FUNCTION_TRACE_PTR(ns_delete_node, node); - - parent_node = acpi_ns_get_parent_node(node); - - prev_node = NULL; - next_node = parent_node->child; - - /* Find the node that is the previous peer in the parent's child list */ - - while (next_node != node) { - prev_node = next_node; - next_node = prev_node->peer; - } - - if (prev_node) { - - /* Node is not first child, unlink it */ - - prev_node->peer = next_node->peer; - if (next_node->flags & ANOBJ_END_OF_PEER_LIST) { - prev_node->flags |= ANOBJ_END_OF_PEER_LIST; - } - } else { - /* Node is first child (has no previous peer) */ - - if (next_node->flags & ANOBJ_END_OF_PEER_LIST) { - - /* No peers at all */ - - parent_node->child = NULL; - } else { /* Link peer list to parent */ - - parent_node->child = next_node->peer; - } - } - - ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_freed++); - - /* - * Detach an object if there is one, then delete the node - */ - acpi_ns_detach_object(node); - (void)acpi_os_release_object(acpi_gbl_namespace_cache, node); - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_install_node - * - * PARAMETERS: walk_state - Current state of the walk - * parent_node - The parent of the new Node - * Node - The new Node to install - * Type - ACPI object type of the new Node - * - * RETURN: None - * - * DESCRIPTION: Initialize a new namespace node and install it amongst - * its peers. - * - * Note: Current namespace lookup is linear search. This appears - * to be sufficient as namespace searches consume only a small - * fraction of the execution time of the ACPI subsystem. - * - ******************************************************************************/ - -void acpi_ns_install_node(struct acpi_walk_state *walk_state, struct acpi_namespace_node *parent_node, /* Parent */ - struct acpi_namespace_node *node, /* New Child */ - acpi_object_type type) -{ - acpi_owner_id owner_id = 0; - struct acpi_namespace_node *child_node; - - ACPI_FUNCTION_TRACE(ns_install_node); - - /* - * Get the owner ID from the Walk state - * The owner ID is used to track table deletion and - * deletion of objects created by methods - */ - if (walk_state) { - owner_id = walk_state->owner_id; - } - - /* Link the new entry into the parent and existing children */ - - child_node = parent_node->child; - if (!child_node) { - parent_node->child = node; - node->flags |= ANOBJ_END_OF_PEER_LIST; - node->peer = parent_node; - } else { - while (!(child_node->flags & ANOBJ_END_OF_PEER_LIST)) { - child_node = child_node->peer; - } - - child_node->peer = node; - - /* Clear end-of-list flag */ - - child_node->flags &= ~ANOBJ_END_OF_PEER_LIST; - node->flags |= ANOBJ_END_OF_PEER_LIST; - node->peer = parent_node; - } - - /* Init the new entry */ - - node->owner_id = owner_id; - node->type = (u8) type; - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "%4.4s (%s) [Node %p Owner %X] added to %4.4s (%s) [Node %p]\n", - acpi_ut_get_node_name(node), - acpi_ut_get_type_name(node->type), node, owner_id, - acpi_ut_get_node_name(parent_node), - acpi_ut_get_type_name(parent_node->type), - parent_node)); - - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_delete_children - * - * PARAMETERS: parent_node - Delete this objects children - * - * RETURN: None. - * - * DESCRIPTION: Delete all children of the parent object. In other words, - * deletes a "scope". - * - ******************************************************************************/ - -void acpi_ns_delete_children(struct acpi_namespace_node *parent_node) -{ - struct acpi_namespace_node *child_node; - struct acpi_namespace_node *next_node; - u8 flags; - - ACPI_FUNCTION_TRACE_PTR(ns_delete_children, parent_node); - - if (!parent_node) { - return_VOID; - } - - /* If no children, all done! */ - - child_node = parent_node->child; - if (!child_node) { - return_VOID; - } - - /* - * Deallocate all children at this level - */ - do { - - /* Get the things we need */ - - next_node = child_node->peer; - flags = child_node->flags; - - /* Grandchildren should have all been deleted already */ - - if (child_node->child) { - ACPI_ERROR((AE_INFO, "Found a grandchild! P=%p C=%p", - parent_node, child_node)); - } - - /* Now we can free this child object */ - - ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_freed++); - - ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, - "Object %p, Remaining %X\n", child_node, - acpi_gbl_current_node_count)); - - /* - * Detach an object if there is one, then free the child node - */ - acpi_ns_detach_object(child_node); - - /* Now we can delete the node */ - - (void)acpi_os_release_object(acpi_gbl_namespace_cache, - child_node); - - /* And move on to the next child in the list */ - - child_node = next_node; - - } while (!(flags & ANOBJ_END_OF_PEER_LIST)); - - /* Clear the parent's child pointer */ - - parent_node->child = NULL; - - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_delete_namespace_subtree - * - * PARAMETERS: parent_node - Root of the subtree to be deleted - * - * RETURN: None. - * - * DESCRIPTION: Delete a subtree of the namespace. This includes all objects - * stored within the subtree. - * - ******************************************************************************/ - -void acpi_ns_delete_namespace_subtree(struct acpi_namespace_node *parent_node) -{ - struct acpi_namespace_node *child_node = NULL; - u32 level = 1; - - ACPI_FUNCTION_TRACE(ns_delete_namespace_subtree); - - if (!parent_node) { - return_VOID; - } - - /* - * Traverse the tree of objects until we bubble back up - * to where we started. - */ - while (level > 0) { - - /* Get the next node in this scope (NULL if none) */ - - child_node = - acpi_ns_get_next_node(ACPI_TYPE_ANY, parent_node, - child_node); - if (child_node) { - - /* Found a child node - detach any attached object */ - - acpi_ns_detach_object(child_node); - - /* Check if this node has any children */ - - if (acpi_ns_get_next_node - (ACPI_TYPE_ANY, child_node, NULL)) { - /* - * There is at least one child of this node, - * visit the node - */ - level++; - parent_node = child_node; - child_node = NULL; - } - } else { - /* - * No more children of this parent node. - * Move up to the grandparent. - */ - level--; - - /* - * Now delete all of the children of this parent - * all at the same time. - */ - acpi_ns_delete_children(parent_node); - - /* New "last child" is this parent node */ - - child_node = parent_node; - - /* Move up the tree to the grandparent */ - - parent_node = acpi_ns_get_parent_node(parent_node); - } - } - - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_delete_namespace_by_owner - * - * PARAMETERS: owner_id - All nodes with this owner will be deleted - * - * RETURN: Status - * - * DESCRIPTION: Delete entries within the namespace that are owned by a - * specific ID. Used to delete entire ACPI tables. All - * reference counts are updated. - * - * MUTEX: Locks namespace during deletion walk. - * - ******************************************************************************/ - -void acpi_ns_delete_namespace_by_owner(acpi_owner_id owner_id) -{ - struct acpi_namespace_node *child_node; - struct acpi_namespace_node *deletion_node; - struct acpi_namespace_node *parent_node; - u32 level; - acpi_status status; - - ACPI_FUNCTION_TRACE_U32(ns_delete_namespace_by_owner, owner_id); - - if (owner_id == 0) { - return_VOID; - } - - /* Lock namespace for possible update */ - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return_VOID; - } - - deletion_node = NULL; - parent_node = acpi_gbl_root_node; - child_node = NULL; - level = 1; - - /* - * Traverse the tree of nodes until we bubble back up - * to where we started. - */ - while (level > 0) { - /* - * Get the next child of this parent node. When child_node is NULL, - * the first child of the parent is returned - */ - child_node = - acpi_ns_get_next_node(ACPI_TYPE_ANY, parent_node, - child_node); - - if (deletion_node) { - acpi_ns_delete_children(deletion_node); - acpi_ns_delete_node(deletion_node); - deletion_node = NULL; - } - - if (child_node) { - if (child_node->owner_id == owner_id) { - - /* Found a matching child node - detach any attached object */ - - acpi_ns_detach_object(child_node); - } - - /* Check if this node has any children */ - - if (acpi_ns_get_next_node - (ACPI_TYPE_ANY, child_node, NULL)) { - /* - * There is at least one child of this node, - * visit the node - */ - level++; - parent_node = child_node; - child_node = NULL; - } else if (child_node->owner_id == owner_id) { - deletion_node = child_node; - } - } else { - /* - * No more children of this parent node. - * Move up to the grandparent. - */ - level--; - if (level != 0) { - if (parent_node->owner_id == owner_id) { - deletion_node = parent_node; - } - } - - /* New "last child" is this parent node */ - - child_node = parent_node; - - /* Move up the tree to the grandparent */ - - parent_node = acpi_ns_get_parent_node(parent_node); - } - } - - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return_VOID; -} diff --git a/drivers/acpi/namespace/nsdump.c b/drivers/acpi/namespace/nsdump.c deleted file mode 100644 index 48f02e659f24..000000000000 --- a/drivers/acpi/namespace/nsdump.c +++ /dev/null @@ -1,709 +0,0 @@ -/****************************************************************************** - * - * Module Name: nsdump - table dumping routines for debug - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_NAMESPACE -ACPI_MODULE_NAME("nsdump") - -/* Local prototypes */ -#ifdef ACPI_OBSOLETE_FUNCTIONS -void acpi_ns_dump_root_devices(void); - -static acpi_status -acpi_ns_dump_one_device(acpi_handle obj_handle, - u32 level, void *context, void **return_value); -#endif - -#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) -/******************************************************************************* - * - * FUNCTION: acpi_ns_print_pathname - * - * PARAMETERS: num_segments - Number of ACPI name segments - * Pathname - The compressed (internal) path - * - * RETURN: None - * - * DESCRIPTION: Print an object's full namespace pathname - * - ******************************************************************************/ - -void acpi_ns_print_pathname(u32 num_segments, char *pathname) -{ - u32 i; - - ACPI_FUNCTION_NAME(ns_print_pathname); - - if (!(acpi_dbg_level & ACPI_LV_NAMES) - || !(acpi_dbg_layer & ACPI_NAMESPACE)) { - return; - } - - /* Print the entire name */ - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "[")); - - while (num_segments) { - for (i = 0; i < 4; i++) { - ACPI_IS_PRINT(pathname[i]) ? - acpi_os_printf("%c", pathname[i]) : - acpi_os_printf("?"); - } - - pathname += ACPI_NAME_SIZE; - num_segments--; - if (num_segments) { - acpi_os_printf("."); - } - } - - acpi_os_printf("]\n"); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_dump_pathname - * - * PARAMETERS: Handle - Object - * Msg - Prefix message - * Level - Desired debug level - * Component - Caller's component ID - * - * RETURN: None - * - * DESCRIPTION: Print an object's full namespace pathname - * Manages allocation/freeing of a pathname buffer - * - ******************************************************************************/ - -void -acpi_ns_dump_pathname(acpi_handle handle, char *msg, u32 level, u32 component) -{ - - ACPI_FUNCTION_TRACE(ns_dump_pathname); - - /* Do this only if the requested debug level and component are enabled */ - - if (!(acpi_dbg_level & level) || !(acpi_dbg_layer & component)) { - return_VOID; - } - - /* Convert handle to a full pathname and print it (with supplied message) */ - - acpi_ns_print_node_pathname(handle, msg); - acpi_os_printf("\n"); - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_dump_one_object - * - * PARAMETERS: obj_handle - Node to be dumped - * Level - Nesting level of the handle - * Context - Passed into walk_namespace - * return_value - Not used - * - * RETURN: Status - * - * DESCRIPTION: Dump a single Node - * This procedure is a user_function called by acpi_ns_walk_namespace. - * - ******************************************************************************/ - -acpi_status -acpi_ns_dump_one_object(acpi_handle obj_handle, - u32 level, void *context, void **return_value) -{ - struct acpi_walk_info *info = (struct acpi_walk_info *)context; - struct acpi_namespace_node *this_node; - union acpi_operand_object *obj_desc = NULL; - acpi_object_type obj_type; - acpi_object_type type; - u32 bytes_to_dump; - u32 dbg_level; - u32 i; - - ACPI_FUNCTION_NAME(ns_dump_one_object); - - /* Is output enabled? */ - - if (!(acpi_dbg_level & info->debug_level)) { - return (AE_OK); - } - - if (!obj_handle) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Null object handle\n")); - return (AE_OK); - } - - this_node = acpi_ns_map_handle_to_node(obj_handle); - type = this_node->type; - - /* Check if the owner matches */ - - if ((info->owner_id != ACPI_OWNER_ID_MAX) && - (info->owner_id != this_node->owner_id)) { - return (AE_OK); - } - - if (!(info->display_type & ACPI_DISPLAY_SHORT)) { - - /* Indent the object according to the level */ - - acpi_os_printf("%2d%*s", (u32) level - 1, (int)level * 2, " "); - - /* Check the node type and name */ - - if (type > ACPI_TYPE_LOCAL_MAX) { - ACPI_WARNING((AE_INFO, "Invalid ACPI Object Type %08X", - type)); - } - - if (!acpi_ut_valid_acpi_name(this_node->name.integer)) { - this_node->name.integer = - acpi_ut_repair_name(this_node->name.ascii); - - ACPI_WARNING((AE_INFO, "Invalid ACPI Name %08X", - this_node->name.integer)); - } - - acpi_os_printf("%4.4s", acpi_ut_get_node_name(this_node)); - } - - /* - * Now we can print out the pertinent information - */ - acpi_os_printf(" %-12s %p %2.2X ", - acpi_ut_get_type_name(type), this_node, - this_node->owner_id); - - dbg_level = acpi_dbg_level; - acpi_dbg_level = 0; - obj_desc = acpi_ns_get_attached_object(this_node); - acpi_dbg_level = dbg_level; - - /* Temp nodes are those nodes created by a control method */ - - if (this_node->flags & ANOBJ_TEMPORARY) { - acpi_os_printf("(T) "); - } - - switch (info->display_type & ACPI_DISPLAY_MASK) { - case ACPI_DISPLAY_SUMMARY: - - if (!obj_desc) { - - /* No attached object, we are done */ - - acpi_os_printf("\n"); - return (AE_OK); - } - - switch (type) { - case ACPI_TYPE_PROCESSOR: - - acpi_os_printf("ID %X Len %.4X Addr %p\n", - obj_desc->processor.proc_id, - obj_desc->processor.length, - ACPI_CAST_PTR(void, - obj_desc->processor. - address)); - break; - - case ACPI_TYPE_DEVICE: - - acpi_os_printf("Notify Object: %p\n", obj_desc); - break; - - case ACPI_TYPE_METHOD: - - acpi_os_printf("Args %X Len %.4X Aml %p\n", - (u32) obj_desc->method.param_count, - obj_desc->method.aml_length, - obj_desc->method.aml_start); - break; - - case ACPI_TYPE_INTEGER: - - acpi_os_printf("= %8.8X%8.8X\n", - ACPI_FORMAT_UINT64(obj_desc->integer. - value)); - break; - - case ACPI_TYPE_PACKAGE: - - if (obj_desc->common.flags & AOPOBJ_DATA_VALID) { - acpi_os_printf("Elements %.2X\n", - obj_desc->package.count); - } else { - acpi_os_printf("[Length not yet evaluated]\n"); - } - break; - - case ACPI_TYPE_BUFFER: - - if (obj_desc->common.flags & AOPOBJ_DATA_VALID) { - acpi_os_printf("Len %.2X", - obj_desc->buffer.length); - - /* Dump some of the buffer */ - - if (obj_desc->buffer.length > 0) { - acpi_os_printf(" ="); - for (i = 0; - (i < obj_desc->buffer.length - && i < 12); i++) { - acpi_os_printf(" %.2hX", - obj_desc->buffer. - pointer[i]); - } - } - acpi_os_printf("\n"); - } else { - acpi_os_printf("[Length not yet evaluated]\n"); - } - break; - - case ACPI_TYPE_STRING: - - acpi_os_printf("Len %.2X ", obj_desc->string.length); - acpi_ut_print_string(obj_desc->string.pointer, 32); - acpi_os_printf("\n"); - break; - - case ACPI_TYPE_REGION: - - acpi_os_printf("[%s]", - acpi_ut_get_region_name(obj_desc->region. - space_id)); - if (obj_desc->region.flags & AOPOBJ_DATA_VALID) { - acpi_os_printf(" Addr %8.8X%8.8X Len %.4X\n", - ACPI_FORMAT_NATIVE_UINT - (obj_desc->region.address), - obj_desc->region.length); - } else { - acpi_os_printf - (" [Address/Length not yet evaluated]\n"); - } - break; - - case ACPI_TYPE_LOCAL_REFERENCE: - - acpi_os_printf("[%s]\n", - acpi_ut_get_reference_name(obj_desc)); - break; - - case ACPI_TYPE_BUFFER_FIELD: - - if (obj_desc->buffer_field.buffer_obj && - obj_desc->buffer_field.buffer_obj->buffer.node) { - acpi_os_printf("Buf [%4.4s]", - acpi_ut_get_node_name(obj_desc-> - buffer_field. - buffer_obj-> - buffer. - node)); - } - break; - - case ACPI_TYPE_LOCAL_REGION_FIELD: - - acpi_os_printf("Rgn [%4.4s]", - acpi_ut_get_node_name(obj_desc-> - common_field. - region_obj->region. - node)); - break; - - case ACPI_TYPE_LOCAL_BANK_FIELD: - - acpi_os_printf("Rgn [%4.4s] Bnk [%4.4s]", - acpi_ut_get_node_name(obj_desc-> - common_field. - region_obj->region. - node), - acpi_ut_get_node_name(obj_desc-> - bank_field. - bank_obj-> - common_field. - node)); - break; - - case ACPI_TYPE_LOCAL_INDEX_FIELD: - - acpi_os_printf("Idx [%4.4s] Dat [%4.4s]", - acpi_ut_get_node_name(obj_desc-> - index_field. - index_obj-> - common_field.node), - acpi_ut_get_node_name(obj_desc-> - index_field. - data_obj-> - common_field. - node)); - break; - - case ACPI_TYPE_LOCAL_ALIAS: - case ACPI_TYPE_LOCAL_METHOD_ALIAS: - - acpi_os_printf("Target %4.4s (%p)\n", - acpi_ut_get_node_name(obj_desc), - obj_desc); - break; - - default: - - acpi_os_printf("Object %p\n", obj_desc); - break; - } - - /* Common field handling */ - - switch (type) { - case ACPI_TYPE_BUFFER_FIELD: - case ACPI_TYPE_LOCAL_REGION_FIELD: - case ACPI_TYPE_LOCAL_BANK_FIELD: - case ACPI_TYPE_LOCAL_INDEX_FIELD: - - acpi_os_printf(" Off %.3X Len %.2X Acc %.2hd\n", - (obj_desc->common_field. - base_byte_offset * 8) - + - obj_desc->common_field. - start_field_bit_offset, - obj_desc->common_field.bit_length, - obj_desc->common_field. - access_byte_width); - break; - - default: - break; - } - break; - - case ACPI_DISPLAY_OBJECTS: - - acpi_os_printf("O:%p", obj_desc); - if (!obj_desc) { - - /* No attached object, we are done */ - - acpi_os_printf("\n"); - return (AE_OK); - } - - acpi_os_printf("(R%d)", obj_desc->common.reference_count); - - switch (type) { - case ACPI_TYPE_METHOD: - - /* Name is a Method and its AML offset/length are set */ - - acpi_os_printf(" M:%p-%X\n", obj_desc->method.aml_start, - obj_desc->method.aml_length); - break; - - case ACPI_TYPE_INTEGER: - - acpi_os_printf(" I:%8.8X8.8%X\n", - ACPI_FORMAT_UINT64(obj_desc->integer. - value)); - break; - - case ACPI_TYPE_STRING: - - acpi_os_printf(" S:%p-%X\n", obj_desc->string.pointer, - obj_desc->string.length); - break; - - case ACPI_TYPE_BUFFER: - - acpi_os_printf(" B:%p-%X\n", obj_desc->buffer.pointer, - obj_desc->buffer.length); - break; - - default: - - acpi_os_printf("\n"); - break; - } - break; - - default: - acpi_os_printf("\n"); - break; - } - - /* If debug turned off, done */ - - if (!(acpi_dbg_level & ACPI_LV_VALUES)) { - return (AE_OK); - } - - /* If there is an attached object, display it */ - - dbg_level = acpi_dbg_level; - acpi_dbg_level = 0; - obj_desc = acpi_ns_get_attached_object(this_node); - acpi_dbg_level = dbg_level; - - /* Dump attached objects */ - - while (obj_desc) { - obj_type = ACPI_TYPE_INVALID; - acpi_os_printf("Attached Object %p: ", obj_desc); - - /* Decode the type of attached object and dump the contents */ - - switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) { - case ACPI_DESC_TYPE_NAMED: - - acpi_os_printf("(Ptr to Node)\n"); - bytes_to_dump = sizeof(struct acpi_namespace_node); - ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump); - break; - - case ACPI_DESC_TYPE_OPERAND: - - obj_type = ACPI_GET_OBJECT_TYPE(obj_desc); - - if (obj_type > ACPI_TYPE_LOCAL_MAX) { - acpi_os_printf - ("(Pointer to ACPI Object type %.2X [UNKNOWN])\n", - obj_type); - bytes_to_dump = 32; - } else { - acpi_os_printf - ("(Pointer to ACPI Object type %.2X [%s])\n", - obj_type, acpi_ut_get_type_name(obj_type)); - bytes_to_dump = - sizeof(union acpi_operand_object); - } - - ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump); - break; - - default: - - break; - } - - /* If value is NOT an internal object, we are done */ - - if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != - ACPI_DESC_TYPE_OPERAND) { - goto cleanup; - } - - /* - * Valid object, get the pointer to next level, if any - */ - switch (obj_type) { - case ACPI_TYPE_BUFFER: - case ACPI_TYPE_STRING: - /* - * NOTE: takes advantage of common fields between string/buffer - */ - bytes_to_dump = obj_desc->string.length; - obj_desc = (void *)obj_desc->string.pointer; - acpi_os_printf("(Buffer/String pointer %p length %X)\n", - obj_desc, bytes_to_dump); - ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump); - goto cleanup; - - case ACPI_TYPE_BUFFER_FIELD: - obj_desc = - (union acpi_operand_object *)obj_desc->buffer_field. - buffer_obj; - break; - - case ACPI_TYPE_PACKAGE: - obj_desc = (void *)obj_desc->package.elements; - break; - - case ACPI_TYPE_METHOD: - obj_desc = (void *)obj_desc->method.aml_start; - break; - - case ACPI_TYPE_LOCAL_REGION_FIELD: - obj_desc = (void *)obj_desc->field.region_obj; - break; - - case ACPI_TYPE_LOCAL_BANK_FIELD: - obj_desc = (void *)obj_desc->bank_field.region_obj; - break; - - case ACPI_TYPE_LOCAL_INDEX_FIELD: - obj_desc = (void *)obj_desc->index_field.index_obj; - break; - - default: - goto cleanup; - } - - obj_type = ACPI_TYPE_INVALID; /* Terminate loop after next pass */ - } - - cleanup: - acpi_os_printf("\n"); - return (AE_OK); -} - -#ifdef ACPI_FUTURE_USAGE -/******************************************************************************* - * - * FUNCTION: acpi_ns_dump_objects - * - * PARAMETERS: Type - Object type to be dumped - * display_type - 0 or ACPI_DISPLAY_SUMMARY - * max_depth - Maximum depth of dump. Use ACPI_UINT32_MAX - * for an effectively unlimited depth. - * owner_id - Dump only objects owned by this ID. Use - * ACPI_UINT32_MAX to match all owners. - * start_handle - Where in namespace to start/end search - * - * RETURN: None - * - * DESCRIPTION: Dump typed objects within the loaded namespace. - * Uses acpi_ns_walk_namespace in conjunction with acpi_ns_dump_one_object. - * - ******************************************************************************/ - -void -acpi_ns_dump_objects(acpi_object_type type, - u8 display_type, - u32 max_depth, - acpi_owner_id owner_id, acpi_handle start_handle) -{ - struct acpi_walk_info info; - - ACPI_FUNCTION_ENTRY(); - - info.debug_level = ACPI_LV_TABLES; - info.owner_id = owner_id; - info.display_type = display_type; - - (void)acpi_ns_walk_namespace(type, start_handle, max_depth, - ACPI_NS_WALK_NO_UNLOCK | - ACPI_NS_WALK_TEMP_NODES, - acpi_ns_dump_one_object, (void *)&info, - NULL); -} -#endif /* ACPI_FUTURE_USAGE */ - -/******************************************************************************* - * - * FUNCTION: acpi_ns_dump_entry - * - * PARAMETERS: Handle - Node to be dumped - * debug_level - Output level - * - * RETURN: None - * - * DESCRIPTION: Dump a single Node - * - ******************************************************************************/ - -void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level) -{ - struct acpi_walk_info info; - - ACPI_FUNCTION_ENTRY(); - - info.debug_level = debug_level; - info.owner_id = ACPI_OWNER_ID_MAX; - info.display_type = ACPI_DISPLAY_SUMMARY; - - (void)acpi_ns_dump_one_object(handle, 1, &info, NULL); -} - -#ifdef ACPI_ASL_COMPILER -/******************************************************************************* - * - * FUNCTION: acpi_ns_dump_tables - * - * PARAMETERS: search_base - Root of subtree to be dumped, or - * NS_ALL to dump the entire namespace - * max_depth - Maximum depth of dump. Use INT_MAX - * for an effectively unlimited depth. - * - * RETURN: None - * - * DESCRIPTION: Dump the name space, or a portion of it. - * - ******************************************************************************/ - -void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth) -{ - acpi_handle search_handle = search_base; - - ACPI_FUNCTION_TRACE(ns_dump_tables); - - if (!acpi_gbl_root_node) { - /* - * If the name space has not been initialized, - * there is nothing to dump. - */ - ACPI_DEBUG_PRINT((ACPI_DB_TABLES, - "namespace not initialized!\n")); - return_VOID; - } - - if (ACPI_NS_ALL == search_base) { - - /* Entire namespace */ - - search_handle = acpi_gbl_root_node; - ACPI_DEBUG_PRINT((ACPI_DB_TABLES, "\\\n")); - } - - acpi_ns_dump_objects(ACPI_TYPE_ANY, ACPI_DISPLAY_OBJECTS, max_depth, - ACPI_OWNER_ID_MAX, search_handle); - return_VOID; -} -#endif /* _ACPI_ASL_COMPILER */ -#endif /* defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) */ diff --git a/drivers/acpi/namespace/nsdumpdv.c b/drivers/acpi/namespace/nsdumpdv.c deleted file mode 100644 index cc3df78258ed..000000000000 --- a/drivers/acpi/namespace/nsdumpdv.c +++ /dev/null @@ -1,141 +0,0 @@ -/****************************************************************************** - * - * Module Name: nsdump - table dumping routines for debug - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include - -/* TBD: This entire module is apparently obsolete and should be removed */ - -#define _COMPONENT ACPI_NAMESPACE -ACPI_MODULE_NAME("nsdumpdv") -#ifdef ACPI_OBSOLETE_FUNCTIONS -#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) -#include -/******************************************************************************* - * - * FUNCTION: acpi_ns_dump_one_device - * - * PARAMETERS: Handle - Node to be dumped - * Level - Nesting level of the handle - * Context - Passed into walk_namespace - * return_value - Not used - * - * RETURN: Status - * - * DESCRIPTION: Dump a single Node that represents a device - * This procedure is a user_function called by acpi_ns_walk_namespace. - * - ******************************************************************************/ -static acpi_status -acpi_ns_dump_one_device(acpi_handle obj_handle, - u32 level, void *context, void **return_value) -{ - struct acpi_buffer buffer; - struct acpi_device_info *info; - acpi_status status; - u32 i; - - ACPI_FUNCTION_NAME(ns_dump_one_device); - - status = - acpi_ns_dump_one_object(obj_handle, level, context, return_value); - - buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; - status = acpi_get_object_info(obj_handle, &buffer); - if (ACPI_SUCCESS(status)) { - info = buffer.pointer; - for (i = 0; i < level; i++) { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_TABLES, " ")); - } - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_TABLES, - " HID: %s, ADR: %8.8X%8.8X, Status: %X\n", - info->hardware_id.value, - ACPI_FORMAT_UINT64(info->address), - info->current_status)); - ACPI_FREE(info); - } - - return (status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_dump_root_devices - * - * PARAMETERS: None - * - * RETURN: None - * - * DESCRIPTION: Dump all objects of type "device" - * - ******************************************************************************/ - -void acpi_ns_dump_root_devices(void) -{ - acpi_handle sys_bus_handle; - acpi_status status; - - ACPI_FUNCTION_NAME(ns_dump_root_devices); - - /* Only dump the table if tracing is enabled */ - - if (!(ACPI_LV_TABLES & acpi_dbg_level)) { - return; - } - - status = acpi_get_handle(NULL, ACPI_NS_SYSTEM_BUS, &sys_bus_handle); - if (ACPI_FAILURE(status)) { - return; - } - - ACPI_DEBUG_PRINT((ACPI_DB_TABLES, - "Display of all devices in the namespace:\n")); - - status = acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, sys_bus_handle, - ACPI_UINT32_MAX, ACPI_NS_WALK_NO_UNLOCK, - acpi_ns_dump_one_device, NULL, NULL); -} - -#endif -#endif diff --git a/drivers/acpi/namespace/nseval.c b/drivers/acpi/namespace/nseval.c deleted file mode 100644 index a8d7764c73b7..000000000000 --- a/drivers/acpi/namespace/nseval.c +++ /dev/null @@ -1,278 +0,0 @@ -/******************************************************************************* - * - * Module Name: nseval - Object evaluation, includes control method execution - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_NAMESPACE -ACPI_MODULE_NAME("nseval") - -/******************************************************************************* - * - * FUNCTION: acpi_ns_evaluate - * - * PARAMETERS: Info - Evaluation info block, contains: - * prefix_node - Prefix or Method/Object Node to execute - * Pathname - Name of method to execute, If NULL, the - * Node is the object to execute - * Parameters - List of parameters to pass to the method, - * terminated by NULL. Params itself may be - * NULL if no parameters are being passed. - * return_object - Where to put method's return value (if - * any). If NULL, no value is returned. - * parameter_type - Type of Parameter list - * return_object - Where to put method's return value (if - * any). If NULL, no value is returned. - * Flags - ACPI_IGNORE_RETURN_VALUE to delete return - * - * RETURN: Status - * - * DESCRIPTION: Execute a control method or return the current value of an - * ACPI namespace object. - * - * MUTEX: Locks interpreter - * - ******************************************************************************/ -acpi_status acpi_ns_evaluate(struct acpi_evaluate_info * info) -{ - acpi_status status; - struct acpi_namespace_node *node; - - ACPI_FUNCTION_TRACE(ns_evaluate); - - if (!info) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Initialize the return value to an invalid object */ - - info->return_object = NULL; - info->param_count = 0; - - /* - * Get the actual namespace node for the target object. Handles these cases: - * - * 1) Null node, Pathname (absolute path) - * 2) Node, Pathname (path relative to Node) - * 3) Node, Null Pathname - */ - status = acpi_ns_get_node(info->prefix_node, info->pathname, - ACPI_NS_NO_UPSEARCH, &info->resolved_node); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * For a method alias, we must grab the actual method node so that proper - * scoping context will be established before execution. - */ - if (acpi_ns_get_type(info->resolved_node) == - ACPI_TYPE_LOCAL_METHOD_ALIAS) { - info->resolved_node = - ACPI_CAST_PTR(struct acpi_namespace_node, - info->resolved_node->object); - } - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "%s [%p] Value %p\n", info->pathname, - info->resolved_node, - acpi_ns_get_attached_object(info->resolved_node))); - - node = info->resolved_node; - - /* - * Two major cases here: - * - * 1) The object is a control method -- execute it - * 2) The object is not a method -- just return it's current value - */ - if (acpi_ns_get_type(info->resolved_node) == ACPI_TYPE_METHOD) { - /* - * 1) Object is a control method - execute it - */ - - /* Verify that there is a method object associated with this node */ - - info->obj_desc = - acpi_ns_get_attached_object(info->resolved_node); - if (!info->obj_desc) { - ACPI_ERROR((AE_INFO, - "Control method has no attached sub-object")); - return_ACPI_STATUS(AE_NULL_OBJECT); - } - - /* Count the number of arguments being passed to the method */ - - if (info->parameters) { - while (info->parameters[info->param_count]) { - if (info->param_count > ACPI_METHOD_MAX_ARG) { - return_ACPI_STATUS(AE_LIMIT); - } - info->param_count++; - } - } - - - ACPI_DUMP_PATHNAME(info->resolved_node, "Execute Method:", - ACPI_LV_INFO, _COMPONENT); - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Method at AML address %p Length %X\n", - info->obj_desc->method.aml_start + 1, - info->obj_desc->method.aml_length - 1)); - - /* - * Any namespace deletion must acquire both the namespace and - * interpreter locks to ensure that no thread is using the portion of - * the namespace that is being deleted. - * - * Execute the method via the interpreter. The interpreter is locked - * here before calling into the AML parser - */ - acpi_ex_enter_interpreter(); - status = acpi_ps_execute_method(info); - acpi_ex_exit_interpreter(); - } else { - /* - * 2) Object is not a method, return its current value - * - * Disallow certain object types. For these, "evaluation" is undefined. - */ - switch (info->resolved_node->type) { - case ACPI_TYPE_DEVICE: - case ACPI_TYPE_EVENT: - case ACPI_TYPE_MUTEX: - case ACPI_TYPE_REGION: - case ACPI_TYPE_THERMAL: - case ACPI_TYPE_LOCAL_SCOPE: - - ACPI_ERROR((AE_INFO, - "[%4.4s] Evaluation of object type [%s] is not supported", - info->resolved_node->name.ascii, - acpi_ut_get_type_name(info->resolved_node-> - type))); - - return_ACPI_STATUS(AE_TYPE); - - default: - break; - } - - /* - * Objects require additional resolution steps (e.g., the Node may be - * a field that must be read, etc.) -- we can't just grab the object - * out of the node. - * - * Use resolve_node_to_value() to get the associated value. - * - * NOTE: we can get away with passing in NULL for a walk state because - * resolved_node is guaranteed to not be a reference to either a method - * local or a method argument (because this interface is never called - * from a running method.) - * - * Even though we do not directly invoke the interpreter for object - * resolution, we must lock it because we could access an opregion. - * The opregion access code assumes that the interpreter is locked. - */ - acpi_ex_enter_interpreter(); - - /* Function has a strange interface */ - - status = - acpi_ex_resolve_node_to_value(&info->resolved_node, NULL); - acpi_ex_exit_interpreter(); - - /* - * If acpi_ex_resolve_node_to_value() succeeded, the return value was placed - * in resolved_node. - */ - if (ACPI_SUCCESS(status)) { - status = AE_CTRL_RETURN_VALUE; - info->return_object = - ACPI_CAST_PTR(union acpi_operand_object, - info->resolved_node); - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Returning object %p [%s]\n", - info->return_object, - acpi_ut_get_object_type_name(info-> - return_object))); - } - } - - /* - * Check input argument count against the ASL-defined count for a method. - * Also check predefined names: argument count and return value against - * the ACPI specification. Some incorrect return value types are repaired. - */ - (void)acpi_ns_check_predefined_names(node, info->param_count, - status, &info->return_object); - - /* Check if there is a return value that must be dealt with */ - - if (status == AE_CTRL_RETURN_VALUE) { - - /* If caller does not want the return value, delete it */ - - if (info->flags & ACPI_IGNORE_RETURN_VALUE) { - acpi_ut_remove_reference(info->return_object); - info->return_object = NULL; - } - - /* Map AE_CTRL_RETURN_VALUE to AE_OK, we are done with it */ - - status = AE_OK; - } - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "*** Completed evaluation of object %s ***\n", - info->pathname)); - - /* - * Namespace was unlocked by the handling acpi_ns* function, so we - * just return - */ - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/namespace/nsinit.c b/drivers/acpi/namespace/nsinit.c deleted file mode 100644 index fe470c4b38f7..000000000000 --- a/drivers/acpi/namespace/nsinit.c +++ /dev/null @@ -1,593 +0,0 @@ -/****************************************************************************** - * - * Module Name: nsinit - namespace initialization - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_NAMESPACE -ACPI_MODULE_NAME("nsinit") - -/* Local prototypes */ -static acpi_status -acpi_ns_init_one_object(acpi_handle obj_handle, - u32 level, void *context, void **return_value); - -static acpi_status -acpi_ns_init_one_device(acpi_handle obj_handle, - u32 nesting_level, void *context, void **return_value); - -static acpi_status -acpi_ns_find_ini_methods(acpi_handle obj_handle, - u32 nesting_level, void *context, void **return_value); - -/******************************************************************************* - * - * FUNCTION: acpi_ns_initialize_objects - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Walk the entire namespace and perform any necessary - * initialization on the objects found therein - * - ******************************************************************************/ - -acpi_status acpi_ns_initialize_objects(void) -{ - acpi_status status; - struct acpi_init_walk_info info; - - ACPI_FUNCTION_TRACE(ns_initialize_objects); - - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "**** Starting initialization of namespace objects ****\n")); - ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, - "Completing Region/Field/Buffer/Package initialization:")); - - /* Set all init info to zero */ - - ACPI_MEMSET(&info, 0, sizeof(struct acpi_init_walk_info)); - - /* Walk entire namespace from the supplied root */ - - status = acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, acpi_ns_init_one_object, - &info, NULL); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, "During WalkNamespace")); - } - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, - "\nInitialized %hd/%hd Regions %hd/%hd Fields %hd/%hd Buffers %hd/%hd Packages (%hd nodes)\n", - info.op_region_init, info.op_region_count, - info.field_init, info.field_count, - info.buffer_init, info.buffer_count, - info.package_init, info.package_count, - info.object_count)); - - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "%hd Control Methods found\n", info.method_count)); - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "%hd Op Regions found\n", info.op_region_count)); - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_initialize_devices - * - * PARAMETERS: None - * - * RETURN: acpi_status - * - * DESCRIPTION: Walk the entire namespace and initialize all ACPI devices. - * This means running _INI on all present devices. - * - * Note: We install PCI config space handler on region access, - * not here. - * - ******************************************************************************/ - -acpi_status acpi_ns_initialize_devices(void) -{ - acpi_status status; - struct acpi_device_walk_info info; - - ACPI_FUNCTION_TRACE(ns_initialize_devices); - - /* Init counters */ - - info.device_count = 0; - info.num_STA = 0; - info.num_INI = 0; - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, - "Initializing Device/Processor/Thermal objects by executing _INI methods:")); - - /* Tree analysis: find all subtrees that contain _INI methods */ - - status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, FALSE, - acpi_ns_find_ini_methods, &info, NULL); - if (ACPI_FAILURE(status)) { - goto error_exit; - } - - /* Allocate the evaluation information block */ - - info.evaluate_info = - ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info)); - if (!info.evaluate_info) { - status = AE_NO_MEMORY; - goto error_exit; - } - - /* Walk namespace to execute all _INIs on present devices */ - - status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, FALSE, - acpi_ns_init_one_device, &info, NULL); - - ACPI_FREE(info.evaluate_info); - if (ACPI_FAILURE(status)) { - goto error_exit; - } - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, - "\nExecuted %hd _INI methods requiring %hd _STA executions (examined %hd objects)\n", - info.num_INI, info.num_STA, info.device_count)); - - return_ACPI_STATUS(status); - - error_exit: - ACPI_EXCEPTION((AE_INFO, status, "During device initialization")); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_init_one_object - * - * PARAMETERS: obj_handle - Node - * Level - Current nesting level - * Context - Points to a init info struct - * return_value - Not used - * - * RETURN: Status - * - * DESCRIPTION: Callback from acpi_walk_namespace. Invoked for every object - * within the namespace. - * - * Currently, the only objects that require initialization are: - * 1) Methods - * 2) Op Regions - * - ******************************************************************************/ - -static acpi_status -acpi_ns_init_one_object(acpi_handle obj_handle, - u32 level, void *context, void **return_value) -{ - acpi_object_type type; - acpi_status status = AE_OK; - struct acpi_init_walk_info *info = - (struct acpi_init_walk_info *)context; - struct acpi_namespace_node *node = - (struct acpi_namespace_node *)obj_handle; - union acpi_operand_object *obj_desc; - - ACPI_FUNCTION_NAME(ns_init_one_object); - - info->object_count++; - - /* And even then, we are only interested in a few object types */ - - type = acpi_ns_get_type(obj_handle); - obj_desc = acpi_ns_get_attached_object(node); - if (!obj_desc) { - return (AE_OK); - } - - /* Increment counters for object types we are looking for */ - - switch (type) { - case ACPI_TYPE_REGION: - info->op_region_count++; - break; - - case ACPI_TYPE_BUFFER_FIELD: - info->field_count++; - break; - - case ACPI_TYPE_LOCAL_BANK_FIELD: - info->field_count++; - break; - - case ACPI_TYPE_BUFFER: - info->buffer_count++; - break; - - case ACPI_TYPE_PACKAGE: - info->package_count++; - break; - - default: - - /* No init required, just exit now */ - return (AE_OK); - } - - /* - * If the object is already initialized, nothing else to do - */ - if (obj_desc->common.flags & AOPOBJ_DATA_VALID) { - return (AE_OK); - } - - /* - * Must lock the interpreter before executing AML code - */ - acpi_ex_enter_interpreter(); - - /* - * Each of these types can contain executable AML code within the - * declaration. - */ - switch (type) { - case ACPI_TYPE_REGION: - - info->op_region_init++; - status = acpi_ds_get_region_arguments(obj_desc); - break; - - case ACPI_TYPE_BUFFER_FIELD: - - info->field_init++; - status = acpi_ds_get_buffer_field_arguments(obj_desc); - break; - - case ACPI_TYPE_LOCAL_BANK_FIELD: - - info->field_init++; - status = acpi_ds_get_bank_field_arguments(obj_desc); - break; - - case ACPI_TYPE_BUFFER: - - info->buffer_init++; - status = acpi_ds_get_buffer_arguments(obj_desc); - break; - - case ACPI_TYPE_PACKAGE: - - info->package_init++; - status = acpi_ds_get_package_arguments(obj_desc); - break; - - default: - /* No other types can get here */ - break; - } - - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "Could not execute arguments for [%4.4s] (%s)", - acpi_ut_get_node_name(node), - acpi_ut_get_type_name(type))); - } - - /* - * Print a dot for each object unless we are going to print the entire - * pathname - */ - if (!(acpi_dbg_level & ACPI_LV_INIT_NAMES)) { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, ".")); - } - - /* - * We ignore errors from above, and always return OK, since we don't want - * to abort the walk on any single error. - */ - acpi_ex_exit_interpreter(); - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_find_ini_methods - * - * PARAMETERS: acpi_walk_callback - * - * RETURN: acpi_status - * - * DESCRIPTION: Called during namespace walk. Finds objects named _INI under - * device/processor/thermal objects, and marks the entire subtree - * with a SUBTREE_HAS_INI flag. This flag is used during the - * subsequent device initialization walk to avoid entire subtrees - * that do not contain an _INI. - * - ******************************************************************************/ - -static acpi_status -acpi_ns_find_ini_methods(acpi_handle obj_handle, - u32 nesting_level, void *context, void **return_value) -{ - struct acpi_device_walk_info *info = - ACPI_CAST_PTR(struct acpi_device_walk_info, context); - struct acpi_namespace_node *node; - struct acpi_namespace_node *parent_node; - - /* Keep count of device/processor/thermal objects */ - - node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle); - if ((node->type == ACPI_TYPE_DEVICE) || - (node->type == ACPI_TYPE_PROCESSOR) || - (node->type == ACPI_TYPE_THERMAL)) { - info->device_count++; - return (AE_OK); - } - - /* We are only looking for methods named _INI */ - - if (!ACPI_COMPARE_NAME(node->name.ascii, METHOD_NAME__INI)) { - return (AE_OK); - } - - /* - * The only _INI methods that we care about are those that are - * present under Device, Processor, and Thermal objects. - */ - parent_node = acpi_ns_get_parent_node(node); - switch (parent_node->type) { - case ACPI_TYPE_DEVICE: - case ACPI_TYPE_PROCESSOR: - case ACPI_TYPE_THERMAL: - - /* Mark parent and bubble up the INI present flag to the root */ - - while (parent_node) { - parent_node->flags |= ANOBJ_SUBTREE_HAS_INI; - parent_node = acpi_ns_get_parent_node(parent_node); - } - break; - - default: - break; - } - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_init_one_device - * - * PARAMETERS: acpi_walk_callback - * - * RETURN: acpi_status - * - * DESCRIPTION: This is called once per device soon after ACPI is enabled - * to initialize each device. It determines if the device is - * present, and if so, calls _INI. - * - ******************************************************************************/ - -static acpi_status -acpi_ns_init_one_device(acpi_handle obj_handle, - u32 nesting_level, void *context, void **return_value) -{ - struct acpi_device_walk_info *walk_info = - ACPI_CAST_PTR(struct acpi_device_walk_info, context); - struct acpi_evaluate_info *info = walk_info->evaluate_info; - u32 flags; - acpi_status status; - struct acpi_namespace_node *device_node; - - ACPI_FUNCTION_TRACE(ns_init_one_device); - - /* We are interested in Devices, Processors and thermal_zones only */ - - device_node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle); - if ((device_node->type != ACPI_TYPE_DEVICE) && - (device_node->type != ACPI_TYPE_PROCESSOR) && - (device_node->type != ACPI_TYPE_THERMAL)) { - return_ACPI_STATUS(AE_OK); - } - - /* - * Because of an earlier namespace analysis, all subtrees that contain an - * _INI method are tagged. - * - * If this device subtree does not contain any _INI methods, we - * can exit now and stop traversing this entire subtree. - */ - if (!(device_node->flags & ANOBJ_SUBTREE_HAS_INI)) { - return_ACPI_STATUS(AE_CTRL_DEPTH); - } - - /* - * Run _STA to determine if this device is present and functioning. We - * must know this information for two important reasons (from ACPI spec): - * - * 1) We can only run _INI if the device is present. - * 2) We must abort the device tree walk on this subtree if the device is - * not present and is not functional (we will not examine the children) - * - * The _STA method is not required to be present under the device, we - * assume the device is present if _STA does not exist. - */ - ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname - (ACPI_TYPE_METHOD, device_node, METHOD_NAME__STA)); - - status = acpi_ut_execute_STA(device_node, &flags); - if (ACPI_FAILURE(status)) { - - /* Ignore error and move on to next device */ - - return_ACPI_STATUS(AE_OK); - } - - /* - * Flags == -1 means that _STA was not found. In this case, we assume that - * the device is both present and functional. - * - * From the ACPI spec, description of _STA: - * - * "If a device object (including the processor object) does not have an - * _STA object, then OSPM assumes that all of the above bits are set (in - * other words, the device is present, ..., and functioning)" - */ - if (flags != ACPI_UINT32_MAX) { - walk_info->num_STA++; - } - - /* - * Examine the PRESENT and FUNCTIONING status bits - * - * Note: ACPI spec does not seem to specify behavior for the present but - * not functioning case, so we assume functioning if present. - */ - if (!(flags & ACPI_STA_DEVICE_PRESENT)) { - - /* Device is not present, we must examine the Functioning bit */ - - if (flags & ACPI_STA_DEVICE_FUNCTIONING) { - /* - * Device is not present but is "functioning". In this case, - * we will not run _INI, but we continue to examine the children - * of this device. - * - * From the ACPI spec, description of _STA: (Note - no mention - * of whether to run _INI or not on the device in question) - * - * "_STA may return bit 0 clear (not present) with bit 3 set - * (device is functional). This case is used to indicate a valid - * device for which no device driver should be loaded (for example, - * a bridge device.) Children of this device may be present and - * valid. OSPM should continue enumeration below a device whose - * _STA returns this bit combination" - */ - return_ACPI_STATUS(AE_OK); - } else { - /* - * Device is not present and is not functioning. We must abort the - * walk of this subtree immediately -- don't look at the children - * of such a device. - * - * From the ACPI spec, description of _INI: - * - * "If the _STA method indicates that the device is not present, - * OSPM will not run the _INI and will not examine the children - * of the device for _INI methods" - */ - return_ACPI_STATUS(AE_CTRL_DEPTH); - } - } - - /* - * The device is present or is assumed present if no _STA exists. - * Run the _INI if it exists (not required to exist) - * - * Note: We know there is an _INI within this subtree, but it may not be - * under this particular device, it may be lower in the branch. - */ - ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname - (ACPI_TYPE_METHOD, device_node, METHOD_NAME__INI)); - - info->prefix_node = device_node; - info->pathname = METHOD_NAME__INI; - info->parameters = NULL; - info->flags = ACPI_IGNORE_RETURN_VALUE; - - /* - * Some hardware relies on this being executed as atomically - * as possible (without an NMI being received in the middle of - * this) - so disable NMIs and initialize the device: - */ - acpi_nmi_disable(); - status = acpi_ns_evaluate(info); - acpi_nmi_enable(); - - if (ACPI_SUCCESS(status)) { - walk_info->num_INI++; - - if ((acpi_dbg_level <= ACPI_LV_ALL_EXCEPTIONS) && - (!(acpi_dbg_level & ACPI_LV_INFO))) { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, ".")); - } - } -#ifdef ACPI_DEBUG_OUTPUT - else if (status != AE_NOT_FOUND) { - - /* Ignore error and move on to next device */ - - char *scope_name = - acpi_ns_get_external_pathname(info->resolved_node); - - ACPI_EXCEPTION((AE_INFO, status, "during %s._INI execution", - scope_name)); - ACPI_FREE(scope_name); - } -#endif - - /* Ignore errors from above */ - - status = AE_OK; - - /* - * The _INI method has been run if present; call the Global Initialization - * Handler for this device. - */ - if (acpi_gbl_init_handler) { - status = - acpi_gbl_init_handler(device_node, ACPI_INIT_DEVICE_INI); - } - - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/namespace/nsload.c b/drivers/acpi/namespace/nsload.c deleted file mode 100644 index a6e92b31a06f..000000000000 --- a/drivers/acpi/namespace/nsload.c +++ /dev/null @@ -1,315 +0,0 @@ -/****************************************************************************** - * - * Module Name: nsload - namespace loading/expanding/contracting procedures - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_NAMESPACE -ACPI_MODULE_NAME("nsload") - -/* Local prototypes */ -#ifdef ACPI_FUTURE_IMPLEMENTATION -acpi_status acpi_ns_unload_namespace(acpi_handle handle); - -static acpi_status acpi_ns_delete_subtree(acpi_handle start_handle); -#endif - -#ifndef ACPI_NO_METHOD_EXECUTION -/******************************************************************************* - * - * FUNCTION: acpi_ns_load_table - * - * PARAMETERS: table_index - Index for table to be loaded - * Node - Owning NS node - * - * RETURN: Status - * - * DESCRIPTION: Load one ACPI table into the namespace - * - ******************************************************************************/ - -acpi_status -acpi_ns_load_table(u32 table_index, struct acpi_namespace_node *node) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ns_load_table); - - /* - * Parse the table and load the namespace with all named - * objects found within. Control methods are NOT parsed - * at this time. In fact, the control methods cannot be - * parsed until the entire namespace is loaded, because - * if a control method makes a forward reference (call) - * to another control method, we can't continue parsing - * because we don't know how many arguments to parse next! - */ - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* If table already loaded into namespace, just return */ - - if (acpi_tb_is_table_loaded(table_index)) { - status = AE_ALREADY_EXISTS; - goto unlock; - } - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "**** Loading table into namespace ****\n")); - - status = acpi_tb_allocate_owner_id(table_index); - if (ACPI_FAILURE(status)) { - goto unlock; - } - - status = acpi_ns_parse_table(table_index, node); - if (ACPI_SUCCESS(status)) { - acpi_tb_set_table_loaded_flag(table_index, TRUE); - } else { - (void)acpi_tb_release_owner_id(table_index); - } - - unlock: - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * Now we can parse the control methods. We always parse - * them here for a sanity check, and if configured for - * just-in-time parsing, we delete the control method - * parse trees. - */ - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "**** Begin Table Method Parsing and Object Initialization ****\n")); - - status = acpi_ds_initialize_objects(table_index, node); - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "**** Completed Table Method Parsing and Object Initialization ****\n")); - - return_ACPI_STATUS(status); -} - -#ifdef ACPI_OBSOLETE_FUNCTIONS -/******************************************************************************* - * - * FUNCTION: acpi_load_namespace - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Load the name space from what ever is pointed to by DSDT. - * (DSDT points to either the BIOS or a buffer.) - * - ******************************************************************************/ - -acpi_status acpi_ns_load_namespace(void) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_load_name_space); - - /* There must be at least a DSDT installed */ - - if (acpi_gbl_DSDT == NULL) { - ACPI_ERROR((AE_INFO, "DSDT is not in memory")); - return_ACPI_STATUS(AE_NO_ACPI_TABLES); - } - - /* - * Load the namespace. The DSDT is required, - * but the SSDT and PSDT tables are optional. - */ - status = acpi_ns_load_table_by_type(ACPI_TABLE_ID_DSDT); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Ignore exceptions from these */ - - (void)acpi_ns_load_table_by_type(ACPI_TABLE_ID_SSDT); - (void)acpi_ns_load_table_by_type(ACPI_TABLE_ID_PSDT); - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, - "ACPI Namespace successfully loaded at root %p\n", - acpi_gbl_root_node)); - - return_ACPI_STATUS(status); -} -#endif - -#ifdef ACPI_FUTURE_IMPLEMENTATION -/******************************************************************************* - * - * FUNCTION: acpi_ns_delete_subtree - * - * PARAMETERS: start_handle - Handle in namespace where search begins - * - * RETURNS Status - * - * DESCRIPTION: Walks the namespace starting at the given handle and deletes - * all objects, entries, and scopes in the entire subtree. - * - * Namespace/Interpreter should be locked or the subsystem should - * be in shutdown before this routine is called. - * - ******************************************************************************/ - -static acpi_status acpi_ns_delete_subtree(acpi_handle start_handle) -{ - acpi_status status; - acpi_handle child_handle; - acpi_handle parent_handle; - acpi_handle next_child_handle; - acpi_handle dummy; - u32 level; - - ACPI_FUNCTION_TRACE(ns_delete_subtree); - - parent_handle = start_handle; - child_handle = NULL; - level = 1; - - /* - * Traverse the tree of objects until we bubble back up - * to where we started. - */ - while (level > 0) { - - /* Attempt to get the next object in this scope */ - - status = acpi_get_next_object(ACPI_TYPE_ANY, parent_handle, - child_handle, &next_child_handle); - - child_handle = next_child_handle; - - /* Did we get a new object? */ - - if (ACPI_SUCCESS(status)) { - - /* Check if this object has any children */ - - if (ACPI_SUCCESS - (acpi_get_next_object - (ACPI_TYPE_ANY, child_handle, NULL, &dummy))) { - /* - * There is at least one child of this object, - * visit the object - */ - level++; - parent_handle = child_handle; - child_handle = NULL; - } - } else { - /* - * No more children in this object, go back up to - * the object's parent - */ - level--; - - /* Delete all children now */ - - acpi_ns_delete_children(child_handle); - - child_handle = parent_handle; - status = acpi_get_parent(parent_handle, &parent_handle); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - } - - /* Now delete the starting object, and we are done */ - - acpi_ns_delete_node(child_handle); - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_unload_name_space - * - * PARAMETERS: Handle - Root of namespace subtree to be deleted - * - * RETURN: Status - * - * DESCRIPTION: Shrinks the namespace, typically in response to an undocking - * event. Deletes an entire subtree starting from (and - * including) the given handle. - * - ******************************************************************************/ - -acpi_status acpi_ns_unload_namespace(acpi_handle handle) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ns_unload_name_space); - - /* Parameter validation */ - - if (!acpi_gbl_root_node) { - return_ACPI_STATUS(AE_NO_NAMESPACE); - } - - if (!handle) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* This function does the real work */ - - status = acpi_ns_delete_subtree(handle); - - return_ACPI_STATUS(status); -} -#endif -#endif diff --git a/drivers/acpi/namespace/nsnames.c b/drivers/acpi/namespace/nsnames.c deleted file mode 100644 index b7e301848ba7..000000000000 --- a/drivers/acpi/namespace/nsnames.c +++ /dev/null @@ -1,265 +0,0 @@ -/******************************************************************************* - * - * Module Name: nsnames - Name manipulation and search - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include - -#define _COMPONENT ACPI_NAMESPACE -ACPI_MODULE_NAME("nsnames") - -/******************************************************************************* - * - * FUNCTION: acpi_ns_build_external_path - * - * PARAMETERS: Node - NS node whose pathname is needed - * Size - Size of the pathname - * *name_buffer - Where to return the pathname - * - * RETURN: Status - * Places the pathname into the name_buffer, in external format - * (name segments separated by path separators) - * - * DESCRIPTION: Generate a full pathaname - * - ******************************************************************************/ -acpi_status -acpi_ns_build_external_path(struct acpi_namespace_node *node, - acpi_size size, char *name_buffer) -{ - acpi_size index; - struct acpi_namespace_node *parent_node; - - ACPI_FUNCTION_ENTRY(); - - /* Special case for root */ - - index = size - 1; - if (index < ACPI_NAME_SIZE) { - name_buffer[0] = AML_ROOT_PREFIX; - name_buffer[1] = 0; - return (AE_OK); - } - - /* Store terminator byte, then build name backwards */ - - parent_node = node; - name_buffer[index] = 0; - - while ((index > ACPI_NAME_SIZE) && (parent_node != acpi_gbl_root_node)) { - index -= ACPI_NAME_SIZE; - - /* Put the name into the buffer */ - - ACPI_MOVE_32_TO_32((name_buffer + index), &parent_node->name); - parent_node = acpi_ns_get_parent_node(parent_node); - - /* Prefix name with the path separator */ - - index--; - name_buffer[index] = ACPI_PATH_SEPARATOR; - } - - /* Overwrite final separator with the root prefix character */ - - name_buffer[index] = AML_ROOT_PREFIX; - - if (index != 0) { - ACPI_ERROR((AE_INFO, - "Could not construct external pathname; index=%X, size=%X, Path=%s", - (u32) index, (u32) size, &name_buffer[size])); - - return (AE_BAD_PARAMETER); - } - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_get_external_pathname - * - * PARAMETERS: Node - Namespace node whose pathname is needed - * - * RETURN: Pointer to storage containing the fully qualified name of - * the node, In external format (name segments separated by path - * separators.) - * - * DESCRIPTION: Used for debug printing in acpi_ns_search_table(). - * - ******************************************************************************/ - -char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node) -{ - acpi_status status; - char *name_buffer; - acpi_size size; - - ACPI_FUNCTION_TRACE_PTR(ns_get_external_pathname, node); - - /* Calculate required buffer size based on depth below root */ - - size = acpi_ns_get_pathname_length(node); - if (!size) { - return_PTR(NULL); - } - - /* Allocate a buffer to be returned to caller */ - - name_buffer = ACPI_ALLOCATE_ZEROED(size); - if (!name_buffer) { - ACPI_ERROR((AE_INFO, "Allocation failure")); - return_PTR(NULL); - } - - /* Build the path in the allocated buffer */ - - status = acpi_ns_build_external_path(node, size, name_buffer); - if (ACPI_FAILURE(status)) { - ACPI_FREE(name_buffer); - return_PTR(NULL); - } - - return_PTR(name_buffer); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_get_pathname_length - * - * PARAMETERS: Node - Namespace node - * - * RETURN: Length of path, including prefix - * - * DESCRIPTION: Get the length of the pathname string for this node - * - ******************************************************************************/ - -acpi_size acpi_ns_get_pathname_length(struct acpi_namespace_node *node) -{ - acpi_size size; - struct acpi_namespace_node *next_node; - - ACPI_FUNCTION_ENTRY(); - - /* - * Compute length of pathname as 5 * number of name segments. - * Go back up the parent tree to the root - */ - size = 0; - next_node = node; - - while (next_node && (next_node != acpi_gbl_root_node)) { - if (ACPI_GET_DESCRIPTOR_TYPE(next_node) != ACPI_DESC_TYPE_NAMED) { - ACPI_ERROR((AE_INFO, - "Invalid Namespace Node (%p) while traversing namespace", - next_node)); - return 0; - } - size += ACPI_PATH_SEGMENT_LENGTH; - next_node = acpi_ns_get_parent_node(next_node); - } - - if (!size) { - size = 1; /* Root node case */ - } - - return (size + 1); /* +1 for null string terminator */ -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_handle_to_pathname - * - * PARAMETERS: target_handle - Handle of named object whose name is - * to be found - * Buffer - Where the pathname is returned - * - * RETURN: Status, Buffer is filled with pathname if status is AE_OK - * - * DESCRIPTION: Build and return a full namespace pathname - * - ******************************************************************************/ - -acpi_status -acpi_ns_handle_to_pathname(acpi_handle target_handle, - struct acpi_buffer * buffer) -{ - acpi_status status; - struct acpi_namespace_node *node; - acpi_size required_size; - - ACPI_FUNCTION_TRACE_PTR(ns_handle_to_pathname, target_handle); - - node = acpi_ns_map_handle_to_node(target_handle); - if (!node) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Determine size required for the caller buffer */ - - required_size = acpi_ns_get_pathname_length(node); - if (!required_size) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Validate/Allocate/Clear caller buffer */ - - status = acpi_ut_initialize_buffer(buffer, required_size); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Build the path in the caller buffer */ - - status = - acpi_ns_build_external_path(node, required_size, buffer->pointer); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%s [%X]\n", - (char *)buffer->pointer, (u32) required_size)); - return_ACPI_STATUS(AE_OK); -} diff --git a/drivers/acpi/namespace/nsobject.c b/drivers/acpi/namespace/nsobject.c deleted file mode 100644 index ca9edeea27df..000000000000 --- a/drivers/acpi/namespace/nsobject.c +++ /dev/null @@ -1,441 +0,0 @@ -/******************************************************************************* - * - * Module Name: nsobject - Utilities for objects attached to namespace - * table entries - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_NAMESPACE -ACPI_MODULE_NAME("nsobject") - -/******************************************************************************* - * - * FUNCTION: acpi_ns_attach_object - * - * PARAMETERS: Node - Parent Node - * Object - Object to be attached - * Type - Type of object, or ACPI_TYPE_ANY if not - * known - * - * RETURN: Status - * - * DESCRIPTION: Record the given object as the value associated with the - * name whose acpi_handle is passed. If Object is NULL - * and Type is ACPI_TYPE_ANY, set the name as having no value. - * Note: Future may require that the Node->Flags field be passed - * as a parameter. - * - * MUTEX: Assumes namespace is locked - * - ******************************************************************************/ -acpi_status -acpi_ns_attach_object(struct acpi_namespace_node *node, - union acpi_operand_object *object, acpi_object_type type) -{ - union acpi_operand_object *obj_desc; - union acpi_operand_object *last_obj_desc; - acpi_object_type object_type = ACPI_TYPE_ANY; - - ACPI_FUNCTION_TRACE(ns_attach_object); - - /* - * Parameter validation - */ - if (!node) { - - /* Invalid handle */ - - ACPI_ERROR((AE_INFO, "Null NamedObj handle")); - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - if (!object && (ACPI_TYPE_ANY != type)) { - - /* Null object */ - - ACPI_ERROR((AE_INFO, - "Null object, but type not ACPI_TYPE_ANY")); - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) { - - /* Not a name handle */ - - ACPI_ERROR((AE_INFO, "Invalid handle %p [%s]", - node, acpi_ut_get_descriptor_name(node))); - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Check if this object is already attached */ - - if (node->object == object) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Obj %p already installed in NameObj %p\n", - object, node)); - - return_ACPI_STATUS(AE_OK); - } - - /* If null object, we will just install it */ - - if (!object) { - obj_desc = NULL; - object_type = ACPI_TYPE_ANY; - } - - /* - * If the source object is a namespace Node with an attached object, - * we will use that (attached) object - */ - else if ((ACPI_GET_DESCRIPTOR_TYPE(object) == ACPI_DESC_TYPE_NAMED) && - ((struct acpi_namespace_node *)object)->object) { - /* - * Value passed is a name handle and that name has a - * non-null value. Use that name's value and type. - */ - obj_desc = ((struct acpi_namespace_node *)object)->object; - object_type = ((struct acpi_namespace_node *)object)->type; - } - - /* - * Otherwise, we will use the parameter object, but we must type - * it first - */ - else { - obj_desc = (union acpi_operand_object *)object; - - /* Use the given type */ - - object_type = type; - } - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Installing %p into Node %p [%4.4s]\n", - obj_desc, node, acpi_ut_get_node_name(node))); - - /* Detach an existing attached object if present */ - - if (node->object) { - acpi_ns_detach_object(node); - } - - if (obj_desc) { - /* - * Must increment the new value's reference count - * (if it is an internal object) - */ - acpi_ut_add_reference(obj_desc); - - /* - * Handle objects with multiple descriptors - walk - * to the end of the descriptor list - */ - last_obj_desc = obj_desc; - while (last_obj_desc->common.next_object) { - last_obj_desc = last_obj_desc->common.next_object; - } - - /* Install the object at the front of the object list */ - - last_obj_desc->common.next_object = node->object; - } - - node->type = (u8) object_type; - node->object = obj_desc; - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_detach_object - * - * PARAMETERS: Node - A Namespace node whose object will be detached - * - * RETURN: None. - * - * DESCRIPTION: Detach/delete an object associated with a namespace node. - * if the object is an allocated object, it is freed. - * Otherwise, the field is simply cleared. - * - ******************************************************************************/ - -void acpi_ns_detach_object(struct acpi_namespace_node *node) -{ - union acpi_operand_object *obj_desc; - - ACPI_FUNCTION_TRACE(ns_detach_object); - - obj_desc = node->object; - - if (!obj_desc || - (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA)) { - return_VOID; - } - - /* Clear the entry in all cases */ - - node->object = NULL; - if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == ACPI_DESC_TYPE_OPERAND) { - node->object = obj_desc->common.next_object; - if (node->object && - (ACPI_GET_OBJECT_TYPE(node->object) != - ACPI_TYPE_LOCAL_DATA)) { - node->object = node->object->common.next_object; - } - } - - /* Reset the node type to untyped */ - - node->type = ACPI_TYPE_ANY; - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "Node %p [%4.4s] Object %p\n", - node, acpi_ut_get_node_name(node), obj_desc)); - - /* Remove one reference on the object (and all subobjects) */ - - acpi_ut_remove_reference(obj_desc); - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_get_attached_object - * - * PARAMETERS: Node - Namespace node - * - * RETURN: Current value of the object field from the Node whose - * handle is passed - * - * DESCRIPTION: Obtain the object attached to a namespace node. - * - ******************************************************************************/ - -union acpi_operand_object *acpi_ns_get_attached_object(struct - acpi_namespace_node - *node) -{ - ACPI_FUNCTION_TRACE_PTR(ns_get_attached_object, node); - - if (!node) { - ACPI_WARNING((AE_INFO, "Null Node ptr")); - return_PTR(NULL); - } - - if (!node->object || - ((ACPI_GET_DESCRIPTOR_TYPE(node->object) != ACPI_DESC_TYPE_OPERAND) - && (ACPI_GET_DESCRIPTOR_TYPE(node->object) != - ACPI_DESC_TYPE_NAMED)) - || (ACPI_GET_OBJECT_TYPE(node->object) == ACPI_TYPE_LOCAL_DATA)) { - return_PTR(NULL); - } - - return_PTR(node->object); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_get_secondary_object - * - * PARAMETERS: Node - Namespace node - * - * RETURN: Current value of the object field from the Node whose - * handle is passed. - * - * DESCRIPTION: Obtain a secondary object associated with a namespace node. - * - ******************************************************************************/ - -union acpi_operand_object *acpi_ns_get_secondary_object(union - acpi_operand_object - *obj_desc) -{ - ACPI_FUNCTION_TRACE_PTR(ns_get_secondary_object, obj_desc); - - if ((!obj_desc) || - (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) || - (!obj_desc->common.next_object) || - (ACPI_GET_OBJECT_TYPE(obj_desc->common.next_object) == - ACPI_TYPE_LOCAL_DATA)) { - return_PTR(NULL); - } - - return_PTR(obj_desc->common.next_object); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_attach_data - * - * PARAMETERS: Node - Namespace node - * Handler - Handler to be associated with the data - * Data - Data to be attached - * - * RETURN: Status - * - * DESCRIPTION: Low-level attach data. Create and attach a Data object. - * - ******************************************************************************/ - -acpi_status -acpi_ns_attach_data(struct acpi_namespace_node *node, - acpi_object_handler handler, void *data) -{ - union acpi_operand_object *prev_obj_desc; - union acpi_operand_object *obj_desc; - union acpi_operand_object *data_desc; - - /* We only allow one attachment per handler */ - - prev_obj_desc = NULL; - obj_desc = node->object; - while (obj_desc) { - if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) && - (obj_desc->data.handler == handler)) { - return (AE_ALREADY_EXISTS); - } - - prev_obj_desc = obj_desc; - obj_desc = obj_desc->common.next_object; - } - - /* Create an internal object for the data */ - - data_desc = acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_DATA); - if (!data_desc) { - return (AE_NO_MEMORY); - } - - data_desc->data.handler = handler; - data_desc->data.pointer = data; - - /* Install the data object */ - - if (prev_obj_desc) { - prev_obj_desc->common.next_object = data_desc; - } else { - node->object = data_desc; - } - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_detach_data - * - * PARAMETERS: Node - Namespace node - * Handler - Handler associated with the data - * - * RETURN: Status - * - * DESCRIPTION: Low-level detach data. Delete the data node, but the caller - * is responsible for the actual data. - * - ******************************************************************************/ - -acpi_status -acpi_ns_detach_data(struct acpi_namespace_node * node, - acpi_object_handler handler) -{ - union acpi_operand_object *obj_desc; - union acpi_operand_object *prev_obj_desc; - - prev_obj_desc = NULL; - obj_desc = node->object; - while (obj_desc) { - if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) && - (obj_desc->data.handler == handler)) { - if (prev_obj_desc) { - prev_obj_desc->common.next_object = - obj_desc->common.next_object; - } else { - node->object = obj_desc->common.next_object; - } - - acpi_ut_remove_reference(obj_desc); - return (AE_OK); - } - - prev_obj_desc = obj_desc; - obj_desc = obj_desc->common.next_object; - } - - return (AE_NOT_FOUND); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_get_attached_data - * - * PARAMETERS: Node - Namespace node - * Handler - Handler associated with the data - * Data - Where the data is returned - * - * RETURN: Status - * - * DESCRIPTION: Low level interface to obtain data previously associated with - * a namespace node. - * - ******************************************************************************/ - -acpi_status -acpi_ns_get_attached_data(struct acpi_namespace_node * node, - acpi_object_handler handler, void **data) -{ - union acpi_operand_object *obj_desc; - - obj_desc = node->object; - while (obj_desc) { - if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) && - (obj_desc->data.handler == handler)) { - *data = obj_desc->data.pointer; - return (AE_OK); - } - - obj_desc = obj_desc->common.next_object; - } - - return (AE_NOT_FOUND); -} diff --git a/drivers/acpi/namespace/nsparse.c b/drivers/acpi/namespace/nsparse.c deleted file mode 100644 index bcfcf427c909..000000000000 --- a/drivers/acpi/namespace/nsparse.c +++ /dev/null @@ -1,204 +0,0 @@ -/****************************************************************************** - * - * Module Name: nsparse - namespace interface to AML parser - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_NAMESPACE -ACPI_MODULE_NAME("nsparse") - -/******************************************************************************* - * - * FUNCTION: ns_one_complete_parse - * - * PARAMETERS: pass_number - 1 or 2 - * table_desc - The table to be parsed. - * - * RETURN: Status - * - * DESCRIPTION: Perform one complete parse of an ACPI/AML table. - * - ******************************************************************************/ -acpi_status -acpi_ns_one_complete_parse(u32 pass_number, - u32 table_index, - struct acpi_namespace_node *start_node) -{ - union acpi_parse_object *parse_root; - acpi_status status; - u32 aml_length; - u8 *aml_start; - struct acpi_walk_state *walk_state; - struct acpi_table_header *table; - acpi_owner_id owner_id; - - ACPI_FUNCTION_TRACE(ns_one_complete_parse); - - status = acpi_tb_get_owner_id(table_index, &owner_id); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Create and init a Root Node */ - - parse_root = acpi_ps_create_scope_op(); - if (!parse_root) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Create and initialize a new walk state */ - - walk_state = acpi_ds_create_walk_state(owner_id, NULL, NULL, NULL); - if (!walk_state) { - acpi_ps_free_op(parse_root); - return_ACPI_STATUS(AE_NO_MEMORY); - } - - status = acpi_get_table_by_index(table_index, &table); - if (ACPI_FAILURE(status)) { - acpi_ds_delete_walk_state(walk_state); - acpi_ps_free_op(parse_root); - return_ACPI_STATUS(status); - } - - /* Table must consist of at least a complete header */ - - if (table->length < sizeof(struct acpi_table_header)) { - status = AE_BAD_HEADER; - } else { - aml_start = (u8 *) table + sizeof(struct acpi_table_header); - aml_length = table->length - sizeof(struct acpi_table_header); - status = acpi_ds_init_aml_walk(walk_state, parse_root, NULL, - aml_start, aml_length, NULL, - (u8) pass_number); - } - - if (ACPI_FAILURE(status)) { - acpi_ds_delete_walk_state(walk_state); - goto cleanup; - } - - /* start_node is the default location to load the table */ - - if (start_node && start_node != acpi_gbl_root_node) { - status = - acpi_ds_scope_stack_push(start_node, ACPI_TYPE_METHOD, - walk_state); - if (ACPI_FAILURE(status)) { - acpi_ds_delete_walk_state(walk_state); - goto cleanup; - } - } - - /* Parse the AML */ - - ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "*PARSE* pass %d parse\n", - (unsigned)pass_number)); - status = acpi_ps_parse_aml(walk_state); - - cleanup: - acpi_ps_delete_parse_tree(parse_root); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_parse_table - * - * PARAMETERS: table_desc - An ACPI table descriptor for table to parse - * start_node - Where to enter the table into the namespace - * - * RETURN: Status - * - * DESCRIPTION: Parse AML within an ACPI table and return a tree of ops - * - ******************************************************************************/ - -acpi_status -acpi_ns_parse_table(u32 table_index, struct acpi_namespace_node *start_node) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ns_parse_table); - - /* - * AML Parse, pass 1 - * - * In this pass, we load most of the namespace. Control methods - * are not parsed until later. A parse tree is not created. Instead, - * each Parser Op subtree is deleted when it is finished. This saves - * a great deal of memory, and allows a small cache of parse objects - * to service the entire parse. The second pass of the parse then - * performs another complete parse of the AML. - */ - ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "**** Start pass 1\n")); - status = - acpi_ns_one_complete_parse(ACPI_IMODE_LOAD_PASS1, table_index, - start_node); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * AML Parse, pass 2 - * - * In this pass, we resolve forward references and other things - * that could not be completed during the first pass. - * Another complete parse of the AML is performed, but the - * overhead of this is compensated for by the fact that the - * parse objects are all cached. - */ - ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "**** Start pass 2\n")); - status = - acpi_ns_one_complete_parse(ACPI_IMODE_LOAD_PASS2, table_index, - start_node); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/namespace/nspredef.c b/drivers/acpi/namespace/nspredef.c deleted file mode 100644 index 1e682d03f620..000000000000 --- a/drivers/acpi/namespace/nspredef.c +++ /dev/null @@ -1,1065 +0,0 @@ -/****************************************************************************** - * - * Module Name: nspredef - Validation of ACPI predefined methods and objects - * $Revision: 1.1 $ - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include - -#define _COMPONENT ACPI_NAMESPACE -ACPI_MODULE_NAME("nspredef") - -/******************************************************************************* - * - * This module validates predefined ACPI objects that appear in the namespace, - * at the time they are evaluated (via acpi_evaluate_object). The purpose of this - * validation is to detect problems with BIOS-exposed predefined ACPI objects - * before the results are returned to the ACPI-related drivers. - * - * There are several areas that are validated: - * - * 1) The number of input arguments as defined by the method/object in the - * ASL is validated against the ACPI specification. - * 2) The type of the return object (if any) is validated against the ACPI - * specification. - * 3) For returned package objects, the count of package elements is - * validated, as well as the type of each package element. Nested - * packages are supported. - * - * For any problems found, a warning message is issued. - * - ******************************************************************************/ -/* Local prototypes */ -static acpi_status -acpi_ns_check_package(char *pathname, - union acpi_operand_object **return_object_ptr, - const union acpi_predefined_info *predefined); - -static acpi_status -acpi_ns_check_package_elements(char *pathname, - union acpi_operand_object **elements, - u8 type1, u32 count1, u8 type2, u32 count2); - -static acpi_status -acpi_ns_check_object_type(char *pathname, - union acpi_operand_object **return_object_ptr, - u32 expected_btypes, u32 package_index); - -static acpi_status -acpi_ns_check_reference(char *pathname, - union acpi_operand_object *return_object); - -static acpi_status -acpi_ns_repair_object(u32 expected_btypes, - u32 package_index, - union acpi_operand_object **return_object_ptr); - -/* - * Names for the types that can be returned by the predefined objects. - * Used for warning messages. Must be in the same order as the ACPI_RTYPEs - */ -static const char *acpi_rtype_names[] = { - "/Integer", - "/String", - "/Buffer", - "/Package", - "/Reference", -}; - -#define ACPI_NOT_PACKAGE ACPI_UINT32_MAX - -/******************************************************************************* - * - * FUNCTION: acpi_ns_check_predefined_names - * - * PARAMETERS: Node - Namespace node for the method/object - * return_object_ptr - Pointer to the object returned from the - * evaluation of a method or object - * - * RETURN: Status - * - * DESCRIPTION: Check an ACPI name for a match in the predefined name list. - * - ******************************************************************************/ - -acpi_status -acpi_ns_check_predefined_names(struct acpi_namespace_node *node, - u32 user_param_count, - acpi_status return_status, - union acpi_operand_object **return_object_ptr) -{ - union acpi_operand_object *return_object = *return_object_ptr; - acpi_status status = AE_OK; - const union acpi_predefined_info *predefined; - char *pathname; - - /* Match the name for this method/object against the predefined list */ - - predefined = acpi_ns_check_for_predefined_name(node); - - /* Get the full pathname to the object, for use in error messages */ - - pathname = acpi_ns_get_external_pathname(node); - if (!pathname) { - pathname = ACPI_CAST_PTR(char, predefined->info.name); - } - - /* - * Check that the parameter count for this method matches the ASL - * definition. For predefined names, ensure that both the caller and - * the method itself are in accordance with the ACPI specification. - */ - acpi_ns_check_parameter_count(pathname, node, user_param_count, - predefined); - - /* If not a predefined name, we cannot validate the return object */ - - if (!predefined) { - goto exit; - } - - /* If the method failed, we cannot validate the return object */ - - if ((return_status != AE_OK) && (return_status != AE_CTRL_RETURN_VALUE)) { - goto exit; - } - - /* - * Only validate the return value on the first successful evaluation of - * the method. This ensures that any warnings will only be emitted during - * the very first evaluation of the method/object. - */ - if (node->flags & ANOBJ_EVALUATED) { - goto exit; - } - - /* Mark the node as having been successfully evaluated */ - - node->flags |= ANOBJ_EVALUATED; - - /* - * If there is no return value, check if we require a return value for - * this predefined name. Either one return value is expected, or none, - * for both methods and other objects. - * - * Exit now if there is no return object. Warning if one was expected. - */ - if (!return_object) { - if ((predefined->info.expected_btypes) && - (!(predefined->info.expected_btypes & ACPI_RTYPE_NONE))) { - ACPI_ERROR((AE_INFO, - "%s: Missing expected return value", - pathname)); - - status = AE_AML_NO_RETURN_VALUE; - } - goto exit; - } - - /* - * We have a return value, but if one wasn't expected, just exit, this is - * not a problem - * - * For example, if the "Implicit Return" feature is enabled, methods will - * always return a value - */ - if (!predefined->info.expected_btypes) { - goto exit; - } - - /* - * Check that the type of the return object is what is expected for - * this predefined name - */ - status = acpi_ns_check_object_type(pathname, return_object_ptr, - predefined->info.expected_btypes, - ACPI_NOT_PACKAGE); - if (ACPI_FAILURE(status)) { - goto exit; - } - - /* For returned Package objects, check the type of all sub-objects */ - - if (ACPI_GET_OBJECT_TYPE(return_object) == ACPI_TYPE_PACKAGE) { - status = - acpi_ns_check_package(pathname, return_object_ptr, - predefined); - } - - exit: - if (pathname != predefined->info.name) { - ACPI_FREE(pathname); - } - - return (status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_check_parameter_count - * - * PARAMETERS: Pathname - Full pathname to the node (for error msgs) - * Node - Namespace node for the method/object - * user_param_count - Number of args passed in by the caller - * Predefined - Pointer to entry in predefined name table - * - * RETURN: None - * - * DESCRIPTION: Check that the declared (in ASL/AML) parameter count for a - * predefined name is what is expected (i.e., what is defined in - * the ACPI specification for this predefined name.) - * - ******************************************************************************/ - -void -acpi_ns_check_parameter_count(char *pathname, - struct acpi_namespace_node *node, - u32 user_param_count, - const union acpi_predefined_info *predefined) -{ - u32 param_count; - u32 required_params_current; - u32 required_params_old; - - /* Methods have 0-7 parameters. All other types have zero. */ - - param_count = 0; - if (node->type == ACPI_TYPE_METHOD) { - param_count = node->object->method.param_count; - } - - /* Argument count check for non-predefined methods/objects */ - - if (!predefined) { - /* - * Warning if too few or too many arguments have been passed by the - * caller. An incorrect number of arguments may not cause the method - * to fail. However, the method will fail if there are too few - * arguments and the method attempts to use one of the missing ones. - */ - if (user_param_count < param_count) { - ACPI_WARNING((AE_INFO, - "%s: Insufficient arguments - needs %d, found %d", - pathname, param_count, user_param_count)); - } else if (user_param_count > param_count) { - ACPI_WARNING((AE_INFO, - "%s: Excess arguments - needs %d, found %d", - pathname, param_count, user_param_count)); - } - return; - } - - /* Allow two different legal argument counts (_SCP, etc.) */ - - required_params_current = predefined->info.param_count & 0x0F; - required_params_old = predefined->info.param_count >> 4; - - if (user_param_count != ACPI_UINT32_MAX) { - - /* Validate the user-supplied parameter count */ - - if ((user_param_count != required_params_current) && - (user_param_count != required_params_old)) { - ACPI_WARNING((AE_INFO, - "%s: Parameter count mismatch - caller passed %d, ACPI requires %d", - pathname, user_param_count, - required_params_current)); - } - } - - /* - * Only validate the argument count on the first successful evaluation of - * the method. This ensures that any warnings will only be emitted during - * the very first evaluation of the method/object. - */ - if (node->flags & ANOBJ_EVALUATED) { - return; - } - - /* - * Check that the ASL-defined parameter count is what is expected for - * this predefined name. - */ - if ((param_count != required_params_current) && - (param_count != required_params_old)) { - ACPI_WARNING((AE_INFO, - "%s: Parameter count mismatch - ASL declared %d, ACPI requires %d", - pathname, param_count, required_params_current)); - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_check_for_predefined_name - * - * PARAMETERS: Node - Namespace node for the method/object - * - * RETURN: Pointer to entry in predefined table. NULL indicates not found. - * - * DESCRIPTION: Check an object name against the predefined object list. - * - ******************************************************************************/ - -const union acpi_predefined_info *acpi_ns_check_for_predefined_name(struct - acpi_namespace_node - *node) -{ - const union acpi_predefined_info *this_name; - - /* Quick check for a predefined name, first character must be underscore */ - - if (node->name.ascii[0] != '_') { - return (NULL); - } - - /* Search info table for a predefined method/object name */ - - this_name = predefined_names; - while (this_name->info.name[0]) { - if (ACPI_COMPARE_NAME(node->name.ascii, this_name->info.name)) { - - /* Return pointer to this table entry */ - - return (this_name); - } - - /* - * Skip next entry in the table if this name returns a Package - * (next entry contains the package info) - */ - if (this_name->info.expected_btypes & ACPI_RTYPE_PACKAGE) { - this_name++; - } - - this_name++; - } - - return (NULL); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_check_package - * - * PARAMETERS: Pathname - Full pathname to the node (for error msgs) - * return_object_ptr - Pointer to the object returned from the - * evaluation of a method or object - * Predefined - Pointer to entry in predefined name table - * - * RETURN: Status - * - * DESCRIPTION: Check a returned package object for the correct count and - * correct type of all sub-objects. - * - ******************************************************************************/ - -static acpi_status -acpi_ns_check_package(char *pathname, - union acpi_operand_object **return_object_ptr, - const union acpi_predefined_info *predefined) -{ - union acpi_operand_object *return_object = *return_object_ptr; - const union acpi_predefined_info *package; - union acpi_operand_object *sub_package; - union acpi_operand_object **elements; - union acpi_operand_object **sub_elements; - acpi_status status; - u32 expected_count; - u32 count; - u32 i; - u32 j; - - ACPI_FUNCTION_NAME(ns_check_package); - - /* The package info for this name is in the next table entry */ - - package = predefined + 1; - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "%s Validating return Package of Type %X, Count %X\n", - pathname, package->ret_info.type, - return_object->package.count)); - - /* Extract package count and elements array */ - - elements = return_object->package.elements; - count = return_object->package.count; - - /* The package must have at least one element, else invalid */ - - if (!count) { - ACPI_WARNING((AE_INFO, - "%s: Return Package has no elements (empty)", - pathname)); - - return (AE_AML_OPERAND_VALUE); - } - - /* - * Decode the type of the expected package contents - * - * PTYPE1 packages contain no subpackages - * PTYPE2 packages contain sub-packages - */ - switch (package->ret_info.type) { - case ACPI_PTYPE1_FIXED: - - /* - * The package count is fixed and there are no sub-packages - * - * If package is too small, exit. - * If package is larger than expected, issue warning but continue - */ - expected_count = - package->ret_info.count1 + package->ret_info.count2; - if (count < expected_count) { - goto package_too_small; - } else if (count > expected_count) { - ACPI_WARNING((AE_INFO, - "%s: Return Package is larger than needed - " - "found %u, expected %u", pathname, count, - expected_count)); - } - - /* Validate all elements of the returned package */ - - status = acpi_ns_check_package_elements(pathname, elements, - package->ret_info. - object_type1, - package->ret_info. - count1, - package->ret_info. - object_type2, - package->ret_info. - count2); - if (ACPI_FAILURE(status)) { - return (status); - } - break; - - case ACPI_PTYPE1_VAR: - - /* - * The package count is variable, there are no sub-packages, and all - * elements must be of the same type - */ - for (i = 0; i < count; i++) { - status = acpi_ns_check_object_type(pathname, elements, - package->ret_info. - object_type1, i); - if (ACPI_FAILURE(status)) { - return (status); - } - elements++; - } - break; - - case ACPI_PTYPE1_OPTION: - - /* - * The package count is variable, there are no sub-packages. There are - * a fixed number of required elements, and a variable number of - * optional elements. - * - * Check if package is at least as large as the minimum required - */ - expected_count = package->ret_info3.count; - if (count < expected_count) { - goto package_too_small; - } - - /* Variable number of sub-objects */ - - for (i = 0; i < count; i++) { - if (i < package->ret_info3.count) { - - /* These are the required package elements (0, 1, or 2) */ - - status = - acpi_ns_check_object_type(pathname, - elements, - package-> - ret_info3. - object_type[i], - i); - if (ACPI_FAILURE(status)) { - return (status); - } - } else { - /* These are the optional package elements */ - - status = - acpi_ns_check_object_type(pathname, - elements, - package-> - ret_info3. - tail_object_type, - i); - if (ACPI_FAILURE(status)) { - return (status); - } - } - elements++; - } - break; - - case ACPI_PTYPE2_PKG_COUNT: - - /* First element is the (Integer) count of sub-packages to follow */ - - status = acpi_ns_check_object_type(pathname, elements, - ACPI_RTYPE_INTEGER, 0); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* - * Count cannot be larger than the parent package length, but allow it - * to be smaller. The >= accounts for the Integer above. - */ - expected_count = (u32) (*elements)->integer.value; - if (expected_count >= count) { - goto package_too_small; - } - - count = expected_count; - elements++; - - /* Now we can walk the sub-packages */ - - /*lint -fallthrough */ - - case ACPI_PTYPE2: - case ACPI_PTYPE2_FIXED: - case ACPI_PTYPE2_MIN: - case ACPI_PTYPE2_COUNT: - - /* - * These types all return a single package that consists of a variable - * number of sub-packages - */ - for (i = 0; i < count; i++) { - sub_package = *elements; - sub_elements = sub_package->package.elements; - - /* Each sub-object must be of type Package */ - - status = - acpi_ns_check_object_type(pathname, &sub_package, - ACPI_RTYPE_PACKAGE, i); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* Examine the different types of sub-packages */ - - switch (package->ret_info.type) { - case ACPI_PTYPE2: - case ACPI_PTYPE2_PKG_COUNT: - - /* Each subpackage has a fixed number of elements */ - - expected_count = - package->ret_info.count1 + - package->ret_info.count2; - if (sub_package->package.count != - expected_count) { - count = sub_package->package.count; - goto package_too_small; - } - - status = - acpi_ns_check_package_elements(pathname, - sub_elements, - package-> - ret_info. - object_type1, - package-> - ret_info. - count1, - package-> - ret_info. - object_type2, - package-> - ret_info. - count2); - if (ACPI_FAILURE(status)) { - return (status); - } - break; - - case ACPI_PTYPE2_FIXED: - - /* Each sub-package has a fixed length */ - - expected_count = package->ret_info2.count; - if (sub_package->package.count < expected_count) { - count = sub_package->package.count; - goto package_too_small; - } - - /* Check the type of each sub-package element */ - - for (j = 0; j < expected_count; j++) { - status = - acpi_ns_check_object_type(pathname, - &sub_elements[j], - package->ret_info2.object_type[j], j); - if (ACPI_FAILURE(status)) { - return (status); - } - } - break; - - case ACPI_PTYPE2_MIN: - - /* Each sub-package has a variable but minimum length */ - - expected_count = package->ret_info.count1; - if (sub_package->package.count < expected_count) { - count = sub_package->package.count; - goto package_too_small; - } - - /* Check the type of each sub-package element */ - - status = - acpi_ns_check_package_elements(pathname, - sub_elements, - package-> - ret_info. - object_type1, - sub_package-> - package. - count, 0, 0); - if (ACPI_FAILURE(status)) { - return (status); - } - break; - - case ACPI_PTYPE2_COUNT: - - /* First element is the (Integer) count of elements to follow */ - - status = - acpi_ns_check_object_type(pathname, - sub_elements, - ACPI_RTYPE_INTEGER, - 0); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* Make sure package is large enough for the Count */ - - expected_count = - (u32) (*sub_elements)->integer.value; - if (sub_package->package.count < expected_count) { - count = sub_package->package.count; - goto package_too_small; - } - - /* Check the type of each sub-package element */ - - status = - acpi_ns_check_package_elements(pathname, - (sub_elements - + 1), - package-> - ret_info. - object_type1, - (expected_count - - 1), 0, 0); - if (ACPI_FAILURE(status)) { - return (status); - } - break; - - default: - break; - } - - elements++; - } - break; - - default: - - /* Should not get here if predefined info table is correct */ - - ACPI_WARNING((AE_INFO, - "%s: Invalid internal return type in table entry: %X", - pathname, package->ret_info.type)); - - return (AE_AML_INTERNAL); - } - - return (AE_OK); - - package_too_small: - - /* Error exit for the case with an incorrect package count */ - - ACPI_WARNING((AE_INFO, "%s: Return Package is too small - " - "found %u, expected %u", pathname, count, - expected_count)); - - return (AE_AML_OPERAND_VALUE); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_check_package_elements - * - * PARAMETERS: Pathname - Full pathname to the node (for error msgs) - * Elements - Pointer to the package elements array - * Type1 - Object type for first group - * Count1 - Count for first group - * Type2 - Object type for second group - * Count2 - Count for second group - * - * RETURN: Status - * - * DESCRIPTION: Check that all elements of a package are of the correct object - * type. Supports up to two groups of different object types. - * - ******************************************************************************/ - -static acpi_status -acpi_ns_check_package_elements(char *pathname, - union acpi_operand_object **elements, - u8 type1, u32 count1, u8 type2, u32 count2) -{ - union acpi_operand_object **this_element = elements; - acpi_status status; - u32 i; - - /* - * Up to two groups of package elements are supported by the data - * structure. All elements in each group must be of the same type. - * The second group can have a count of zero. - */ - for (i = 0; i < count1; i++) { - status = acpi_ns_check_object_type(pathname, this_element, - type1, i); - if (ACPI_FAILURE(status)) { - return (status); - } - this_element++; - } - - for (i = 0; i < count2; i++) { - status = acpi_ns_check_object_type(pathname, this_element, - type2, (i + count1)); - if (ACPI_FAILURE(status)) { - return (status); - } - this_element++; - } - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_check_object_type - * - * PARAMETERS: Pathname - Full pathname to the node (for error msgs) - * return_object_ptr - Pointer to the object returned from the - * evaluation of a method or object - * expected_btypes - Bitmap of expected return type(s) - * package_index - Index of object within parent package (if - * applicable - ACPI_NOT_PACKAGE otherwise) - * - * RETURN: Status - * - * DESCRIPTION: Check the type of the return object against the expected object - * type(s). Use of Btype allows multiple expected object types. - * - ******************************************************************************/ - -static acpi_status -acpi_ns_check_object_type(char *pathname, - union acpi_operand_object **return_object_ptr, - u32 expected_btypes, u32 package_index) -{ - union acpi_operand_object *return_object = *return_object_ptr; - acpi_status status = AE_OK; - u32 return_btype; - char type_buffer[48]; /* Room for 5 types */ - u32 this_rtype; - u32 i; - u32 j; - - /* - * If we get a NULL return_object here, it is a NULL package element, - * and this is always an error. - */ - if (!return_object) { - goto type_error_exit; - } - - /* A Namespace node should not get here, but make sure */ - - if (ACPI_GET_DESCRIPTOR_TYPE(return_object) == ACPI_DESC_TYPE_NAMED) { - ACPI_WARNING((AE_INFO, - "%s: Invalid return type - Found a Namespace node [%4.4s] type %s", - pathname, return_object->node.name.ascii, - acpi_ut_get_type_name(return_object->node.type))); - return (AE_AML_OPERAND_TYPE); - } - - /* - * Convert the object type (ACPI_TYPE_xxx) to a bitmapped object type. - * The bitmapped type allows multiple possible return types. - * - * Note, the cases below must handle all of the possible types returned - * from all of the predefined names (including elements of returned - * packages) - */ - switch (ACPI_GET_OBJECT_TYPE(return_object)) { - case ACPI_TYPE_INTEGER: - return_btype = ACPI_RTYPE_INTEGER; - break; - - case ACPI_TYPE_BUFFER: - return_btype = ACPI_RTYPE_BUFFER; - break; - - case ACPI_TYPE_STRING: - return_btype = ACPI_RTYPE_STRING; - break; - - case ACPI_TYPE_PACKAGE: - return_btype = ACPI_RTYPE_PACKAGE; - break; - - case ACPI_TYPE_LOCAL_REFERENCE: - return_btype = ACPI_RTYPE_REFERENCE; - break; - - default: - /* Not one of the supported objects, must be incorrect */ - - goto type_error_exit; - } - - /* Is the object one of the expected types? */ - - if (!(return_btype & expected_btypes)) { - - /* Type mismatch -- attempt repair of the returned object */ - - status = acpi_ns_repair_object(expected_btypes, package_index, - return_object_ptr); - if (ACPI_SUCCESS(status)) { - return (status); - } - goto type_error_exit; - } - - /* For reference objects, check that the reference type is correct */ - - if (ACPI_GET_OBJECT_TYPE(return_object) == ACPI_TYPE_LOCAL_REFERENCE) { - status = acpi_ns_check_reference(pathname, return_object); - } - - return (status); - - type_error_exit: - - /* Create a string with all expected types for this predefined object */ - - j = 1; - type_buffer[0] = 0; - this_rtype = ACPI_RTYPE_INTEGER; - - for (i = 0; i < ACPI_NUM_RTYPES; i++) { - - /* If one of the expected types, concatenate the name of this type */ - - if (expected_btypes & this_rtype) { - ACPI_STRCAT(type_buffer, &acpi_rtype_names[i][j]); - j = 0; /* Use name separator from now on */ - } - this_rtype <<= 1; /* Next Rtype */ - } - - if (package_index == ACPI_NOT_PACKAGE) { - ACPI_WARNING((AE_INFO, - "%s: Return type mismatch - found %s, expected %s", - pathname, - acpi_ut_get_object_type_name(return_object), - type_buffer)); - } else { - ACPI_WARNING((AE_INFO, - "%s: Return Package type mismatch at index %u - " - "found %s, expected %s", pathname, package_index, - acpi_ut_get_object_type_name(return_object), - type_buffer)); - } - - return (AE_AML_OPERAND_TYPE); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_check_reference - * - * PARAMETERS: Pathname - Full pathname to the node (for error msgs) - * return_object - Object returned from the evaluation of a - * method or object - * - * RETURN: Status - * - * DESCRIPTION: Check a returned reference object for the correct reference - * type. The only reference type that can be returned from a - * predefined method is a named reference. All others are invalid. - * - ******************************************************************************/ - -static acpi_status -acpi_ns_check_reference(char *pathname, - union acpi_operand_object *return_object) -{ - - /* - * Check the reference object for the correct reference type (opcode). - * The only type of reference that can be converted to an union acpi_object is - * a reference to a named object (reference class: NAME) - */ - if (return_object->reference.class == ACPI_REFCLASS_NAME) { - return (AE_OK); - } - - ACPI_WARNING((AE_INFO, - "%s: Return type mismatch - unexpected reference object type [%s] %2.2X", - pathname, acpi_ut_get_reference_name(return_object), - return_object->reference.class)); - - return (AE_AML_OPERAND_TYPE); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_repair_object - * - * PARAMETERS: Pathname - Full pathname to the node (for error msgs) - * package_index - Used to determine if target is in a package - * return_object_ptr - Pointer to the object returned from the - * evaluation of a method or object - * - * RETURN: Status. AE_OK if repair was successful. - * - * DESCRIPTION: Attempt to repair/convert a return object of a type that was - * not expected. - * - ******************************************************************************/ - -static acpi_status -acpi_ns_repair_object(u32 expected_btypes, - u32 package_index, - union acpi_operand_object **return_object_ptr) -{ - union acpi_operand_object *return_object = *return_object_ptr; - union acpi_operand_object *new_object; - acpi_size length; - - switch (ACPI_GET_OBJECT_TYPE(return_object)) { - case ACPI_TYPE_BUFFER: - - if (!(expected_btypes & ACPI_RTYPE_STRING)) { - return (AE_AML_OPERAND_TYPE); - } - - /* - * Have a Buffer, expected a String, convert. Use a to_string - * conversion, no transform performed on the buffer data. The best - * example of this is the _BIF method, where the string data from - * the battery is often (incorrectly) returned as buffer object(s). - */ - length = 0; - while ((length < return_object->buffer.length) && - (return_object->buffer.pointer[length])) { - length++; - } - - /* Allocate a new string object */ - - new_object = acpi_ut_create_string_object(length); - if (!new_object) { - return (AE_NO_MEMORY); - } - - /* - * Copy the raw buffer data with no transform. String is already NULL - * terminated at Length+1. - */ - ACPI_MEMCPY(new_object->string.pointer, - return_object->buffer.pointer, length); - - /* Install the new return object */ - - acpi_ut_remove_reference(return_object); - *return_object_ptr = new_object; - - /* - * If the object is a package element, we need to: - * 1. Decrement the reference count of the orignal object, it was - * incremented when building the package - * 2. Increment the reference count of the new object, it will be - * decremented when releasing the package - */ - if (package_index != ACPI_NOT_PACKAGE) { - acpi_ut_remove_reference(return_object); - acpi_ut_add_reference(new_object); - } - return (AE_OK); - - default: - break; - } - - return (AE_AML_OPERAND_TYPE); -} diff --git a/drivers/acpi/namespace/nssearch.c b/drivers/acpi/namespace/nssearch.c deleted file mode 100644 index a76c731e3ba5..000000000000 --- a/drivers/acpi/namespace/nssearch.c +++ /dev/null @@ -1,415 +0,0 @@ -/******************************************************************************* - * - * Module Name: nssearch - Namespace search - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_NAMESPACE -ACPI_MODULE_NAME("nssearch") - -/* Local prototypes */ -static acpi_status -acpi_ns_search_parent_tree(u32 target_name, - struct acpi_namespace_node *node, - acpi_object_type type, - struct acpi_namespace_node **return_node); - -/******************************************************************************* - * - * FUNCTION: acpi_ns_search_one_scope - * - * PARAMETERS: target_name - Ascii ACPI name to search for - * parent_node - Starting node where search will begin - * Type - Object type to match - * return_node - Where the matched Named obj is returned - * - * RETURN: Status - * - * DESCRIPTION: Search a single level of the namespace. Performs a - * simple search of the specified level, and does not add - * entries or search parents. - * - * - * Named object lists are built (and subsequently dumped) in the - * order in which the names are encountered during the namespace load; - * - * All namespace searching is linear in this implementation, but - * could be easily modified to support any improved search - * algorithm. However, the linear search was chosen for simplicity - * and because the trees are small and the other interpreter - * execution overhead is relatively high. - * - * Note: CPU execution analysis has shown that the AML interpreter spends - * a very small percentage of its time searching the namespace. Therefore, - * the linear search seems to be sufficient, as there would seem to be - * little value in improving the search. - * - ******************************************************************************/ - -acpi_status -acpi_ns_search_one_scope(u32 target_name, - struct acpi_namespace_node *parent_node, - acpi_object_type type, - struct acpi_namespace_node **return_node) -{ - struct acpi_namespace_node *node; - - ACPI_FUNCTION_TRACE(ns_search_one_scope); - -#ifdef ACPI_DEBUG_OUTPUT - if (ACPI_LV_NAMES & acpi_dbg_level) { - char *scope_name; - - scope_name = acpi_ns_get_external_pathname(parent_node); - if (scope_name) { - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Searching %s (%p) For [%4.4s] (%s)\n", - scope_name, parent_node, - ACPI_CAST_PTR(char, &target_name), - acpi_ut_get_type_name(type))); - - ACPI_FREE(scope_name); - } - } -#endif - - /* - * Search for name at this namespace level, which is to say that we - * must search for the name among the children of this object - */ - node = parent_node->child; - while (node) { - - /* Check for match against the name */ - - if (node->name.integer == target_name) { - - /* Resolve a control method alias if any */ - - if (acpi_ns_get_type(node) == - ACPI_TYPE_LOCAL_METHOD_ALIAS) { - node = - ACPI_CAST_PTR(struct acpi_namespace_node, - node->object); - } - - /* Found matching entry */ - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Name [%4.4s] (%s) %p found in scope [%4.4s] %p\n", - ACPI_CAST_PTR(char, &target_name), - acpi_ut_get_type_name(node->type), - node, - acpi_ut_get_node_name(parent_node), - parent_node)); - - *return_node = node; - return_ACPI_STATUS(AE_OK); - } - - /* - * The last entry in the list points back to the parent, - * so a flag is used to indicate the end-of-list - */ - if (node->flags & ANOBJ_END_OF_PEER_LIST) { - - /* Searched entire list, we are done */ - - break; - } - - /* Didn't match name, move on to the next peer object */ - - node = node->peer; - } - - /* Searched entire namespace level, not found */ - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Name [%4.4s] (%s) not found in search in scope [%4.4s] %p first child %p\n", - ACPI_CAST_PTR(char, &target_name), - acpi_ut_get_type_name(type), - acpi_ut_get_node_name(parent_node), parent_node, - parent_node->child)); - - return_ACPI_STATUS(AE_NOT_FOUND); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_search_parent_tree - * - * PARAMETERS: target_name - Ascii ACPI name to search for - * Node - Starting node where search will begin - * Type - Object type to match - * return_node - Where the matched Node is returned - * - * RETURN: Status - * - * DESCRIPTION: Called when a name has not been found in the current namespace - * level. Before adding it or giving up, ACPI scope rules require - * searching enclosing scopes in cases identified by acpi_ns_local(). - * - * "A name is located by finding the matching name in the current - * name space, and then in the parent name space. If the parent - * name space does not contain the name, the search continues - * recursively until either the name is found or the name space - * does not have a parent (the root of the name space). This - * indicates that the name is not found" (From ACPI Specification, - * section 5.3) - * - ******************************************************************************/ - -static acpi_status -acpi_ns_search_parent_tree(u32 target_name, - struct acpi_namespace_node *node, - acpi_object_type type, - struct acpi_namespace_node **return_node) -{ - acpi_status status; - struct acpi_namespace_node *parent_node; - - ACPI_FUNCTION_TRACE(ns_search_parent_tree); - - parent_node = acpi_ns_get_parent_node(node); - - /* - * If there is no parent (i.e., we are at the root) or type is "local", - * we won't be searching the parent tree. - */ - if (!parent_node) { - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "[%4.4s] has no parent\n", - ACPI_CAST_PTR(char, &target_name))); - return_ACPI_STATUS(AE_NOT_FOUND); - } - - if (acpi_ns_local(type)) { - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "[%4.4s] type [%s] must be local to this scope (no parent search)\n", - ACPI_CAST_PTR(char, &target_name), - acpi_ut_get_type_name(type))); - return_ACPI_STATUS(AE_NOT_FOUND); - } - - /* Search the parent tree */ - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Searching parent [%4.4s] for [%4.4s]\n", - acpi_ut_get_node_name(parent_node), - ACPI_CAST_PTR(char, &target_name))); - - /* - * Search parents until target is found or we have backed up to the root - */ - while (parent_node) { - /* - * Search parent scope. Use TYPE_ANY because we don't care about the - * object type at this point, we only care about the existence of - * the actual name we are searching for. Typechecking comes later. - */ - status = - acpi_ns_search_one_scope(target_name, parent_node, - ACPI_TYPE_ANY, return_node); - if (ACPI_SUCCESS(status)) { - return_ACPI_STATUS(status); - } - - /* Not found here, go up another level (until we reach the root) */ - - parent_node = acpi_ns_get_parent_node(parent_node); - } - - /* Not found in parent tree */ - - return_ACPI_STATUS(AE_NOT_FOUND); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_search_and_enter - * - * PARAMETERS: target_name - Ascii ACPI name to search for (4 chars) - * walk_state - Current state of the walk - * Node - Starting node where search will begin - * interpreter_mode - Add names only in ACPI_MODE_LOAD_PASS_x. - * Otherwise,search only. - * Type - Object type to match - * Flags - Flags describing the search restrictions - * return_node - Where the Node is returned - * - * RETURN: Status - * - * DESCRIPTION: Search for a name segment in a single namespace level, - * optionally adding it if it is not found. If the passed - * Type is not Any and the type previously stored in the - * entry was Any (i.e. unknown), update the stored type. - * - * In ACPI_IMODE_EXECUTE, search only. - * In other modes, search and add if not found. - * - ******************************************************************************/ - -acpi_status -acpi_ns_search_and_enter(u32 target_name, - struct acpi_walk_state *walk_state, - struct acpi_namespace_node *node, - acpi_interpreter_mode interpreter_mode, - acpi_object_type type, - u32 flags, struct acpi_namespace_node **return_node) -{ - acpi_status status; - struct acpi_namespace_node *new_node; - - ACPI_FUNCTION_TRACE(ns_search_and_enter); - - /* Parameter validation */ - - if (!node || !target_name || !return_node) { - ACPI_ERROR((AE_INFO, - "Null parameter: Node %p Name %X ReturnNode %p", - node, target_name, return_node)); - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* - * Name must consist of valid ACPI characters. We will repair the name if - * necessary because we don't want to abort because of this, but we want - * all namespace names to be printable. A warning message is appropriate. - * - * This issue came up because there are in fact machines that exhibit - * this problem, and we want to be able to enable ACPI support for them, - * even though there are a few bad names. - */ - if (!acpi_ut_valid_acpi_name(target_name)) { - target_name = - acpi_ut_repair_name(ACPI_CAST_PTR(char, &target_name)); - - /* Report warning only if in strict mode or debug mode */ - - if (!acpi_gbl_enable_interpreter_slack) { - ACPI_WARNING((AE_INFO, - "Found bad character(s) in name, repaired: [%4.4s]\n", - ACPI_CAST_PTR(char, &target_name))); - } else { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Found bad character(s) in name, repaired: [%4.4s]\n", - ACPI_CAST_PTR(char, &target_name))); - } - } - - /* Try to find the name in the namespace level specified by the caller */ - - *return_node = ACPI_ENTRY_NOT_FOUND; - status = acpi_ns_search_one_scope(target_name, node, type, return_node); - if (status != AE_NOT_FOUND) { - /* - * If we found it AND the request specifies that a find is an error, - * return the error - */ - if ((status == AE_OK) && (flags & ACPI_NS_ERROR_IF_FOUND)) { - status = AE_ALREADY_EXISTS; - } - - /* Either found it or there was an error: finished either way */ - - return_ACPI_STATUS(status); - } - - /* - * The name was not found. If we are NOT performing the first pass - * (name entry) of loading the namespace, search the parent tree (all the - * way to the root if necessary.) We don't want to perform the parent - * search when the namespace is actually being loaded. We want to perform - * the search when namespace references are being resolved (load pass 2) - * and during the execution phase. - */ - if ((interpreter_mode != ACPI_IMODE_LOAD_PASS1) && - (flags & ACPI_NS_SEARCH_PARENT)) { - /* - * Not found at this level - search parent tree according to the - * ACPI specification - */ - status = - acpi_ns_search_parent_tree(target_name, node, type, - return_node); - if (ACPI_SUCCESS(status)) { - return_ACPI_STATUS(status); - } - } - - /* In execute mode, just search, never add names. Exit now */ - - if (interpreter_mode == ACPI_IMODE_EXECUTE) { - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "%4.4s Not found in %p [Not adding]\n", - ACPI_CAST_PTR(char, &target_name), node)); - - return_ACPI_STATUS(AE_NOT_FOUND); - } - - /* Create the new named object */ - - new_node = acpi_ns_create_node(target_name); - if (!new_node) { - return_ACPI_STATUS(AE_NO_MEMORY); - } -#ifdef ACPI_ASL_COMPILER - /* - * Node is an object defined by an External() statement - */ - if (flags & ACPI_NS_EXTERNAL) { - new_node->flags |= ANOBJ_IS_EXTERNAL; - } -#endif - - if (flags & ACPI_NS_TEMPORARY) { - new_node->flags |= ANOBJ_TEMPORARY; - } - - /* Install the new object into the parent's list of children */ - - acpi_ns_install_node(walk_state, node, new_node, type); - *return_node = new_node; - return_ACPI_STATUS(AE_OK); -} diff --git a/drivers/acpi/namespace/nsutils.c b/drivers/acpi/namespace/nsutils.c deleted file mode 100644 index a443d2805d2c..000000000000 --- a/drivers/acpi/namespace/nsutils.c +++ /dev/null @@ -1,997 +0,0 @@ -/****************************************************************************** - * - * Module Name: nsutils - Utilities for accessing ACPI namespace, accessing - * parents and siblings and Scope manipulation - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_NAMESPACE -ACPI_MODULE_NAME("nsutils") - -/* Local prototypes */ -static u8 acpi_ns_valid_path_separator(char sep); - -#ifdef ACPI_OBSOLETE_FUNCTIONS -acpi_name acpi_ns_find_parent_name(struct acpi_namespace_node *node_to_search); -#endif - -/******************************************************************************* - * - * FUNCTION: acpi_ns_report_error - * - * PARAMETERS: module_name - Caller's module name (for error output) - * line_number - Caller's line number (for error output) - * internal_name - Name or path of the namespace node - * lookup_status - Exception code from NS lookup - * - * RETURN: None - * - * DESCRIPTION: Print warning message with full pathname - * - ******************************************************************************/ - -void -acpi_ns_report_error(const char *module_name, - u32 line_number, - const char *internal_name, acpi_status lookup_status) -{ - acpi_status status; - u32 bad_name; - char *name = NULL; - - acpi_os_printf("ACPI Error (%s-%04d): ", module_name, line_number); - - if (lookup_status == AE_BAD_CHARACTER) { - - /* There is a non-ascii character in the name */ - - ACPI_MOVE_32_TO_32(&bad_name, internal_name); - acpi_os_printf("[0x%4.4X] (NON-ASCII)", bad_name); - } else { - /* Convert path to external format */ - - status = acpi_ns_externalize_name(ACPI_UINT32_MAX, - internal_name, NULL, &name); - - /* Print target name */ - - if (ACPI_SUCCESS(status)) { - acpi_os_printf("[%s]", name); - } else { - acpi_os_printf("[COULD NOT EXTERNALIZE NAME]"); - } - - if (name) { - ACPI_FREE(name); - } - } - - acpi_os_printf(" Namespace lookup failure, %s\n", - acpi_format_exception(lookup_status)); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_report_method_error - * - * PARAMETERS: module_name - Caller's module name (for error output) - * line_number - Caller's line number (for error output) - * Message - Error message to use on failure - * prefix_node - Prefix relative to the path - * Path - Path to the node (optional) - * method_status - Execution status - * - * RETURN: None - * - * DESCRIPTION: Print warning message with full pathname - * - ******************************************************************************/ - -void -acpi_ns_report_method_error(const char *module_name, - u32 line_number, - const char *message, - struct acpi_namespace_node *prefix_node, - const char *path, acpi_status method_status) -{ - acpi_status status; - struct acpi_namespace_node *node = prefix_node; - - acpi_os_printf("ACPI Error (%s-%04d): ", module_name, line_number); - - if (path) { - status = - acpi_ns_get_node(prefix_node, path, ACPI_NS_NO_UPSEARCH, - &node); - if (ACPI_FAILURE(status)) { - acpi_os_printf("[Could not get node by pathname]"); - } - } - - acpi_ns_print_node_pathname(node, message); - acpi_os_printf(", %s\n", acpi_format_exception(method_status)); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_print_node_pathname - * - * PARAMETERS: Node - Object - * Message - Prefix message - * - * DESCRIPTION: Print an object's full namespace pathname - * Manages allocation/freeing of a pathname buffer - * - ******************************************************************************/ - -void -acpi_ns_print_node_pathname(struct acpi_namespace_node *node, - const char *message) -{ - struct acpi_buffer buffer; - acpi_status status; - - if (!node) { - acpi_os_printf("[NULL NAME]"); - return; - } - - /* Convert handle to full pathname and print it (with supplied message) */ - - buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; - - status = acpi_ns_handle_to_pathname(node, &buffer); - if (ACPI_SUCCESS(status)) { - if (message) { - acpi_os_printf("%s ", message); - } - - acpi_os_printf("[%s] (Node %p)", (char *)buffer.pointer, node); - ACPI_FREE(buffer.pointer); - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_valid_root_prefix - * - * PARAMETERS: Prefix - Character to be checked - * - * RETURN: TRUE if a valid prefix - * - * DESCRIPTION: Check if a character is a valid ACPI Root prefix - * - ******************************************************************************/ - -u8 acpi_ns_valid_root_prefix(char prefix) -{ - - return ((u8) (prefix == '\\')); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_valid_path_separator - * - * PARAMETERS: Sep - Character to be checked - * - * RETURN: TRUE if a valid path separator - * - * DESCRIPTION: Check if a character is a valid ACPI path separator - * - ******************************************************************************/ - -static u8 acpi_ns_valid_path_separator(char sep) -{ - - return ((u8) (sep == '.')); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_get_type - * - * PARAMETERS: Node - Parent Node to be examined - * - * RETURN: Type field from Node whose handle is passed - * - * DESCRIPTION: Return the type of a Namespace node - * - ******************************************************************************/ - -acpi_object_type acpi_ns_get_type(struct acpi_namespace_node * node) -{ - ACPI_FUNCTION_TRACE(ns_get_type); - - if (!node) { - ACPI_WARNING((AE_INFO, "Null Node parameter")); - return_UINT32(ACPI_TYPE_ANY); - } - - return_UINT32((acpi_object_type) node->type); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_local - * - * PARAMETERS: Type - A namespace object type - * - * RETURN: LOCAL if names must be found locally in objects of the - * passed type, 0 if enclosing scopes should be searched - * - * DESCRIPTION: Returns scope rule for the given object type. - * - ******************************************************************************/ - -u32 acpi_ns_local(acpi_object_type type) -{ - ACPI_FUNCTION_TRACE(ns_local); - - if (!acpi_ut_valid_object_type(type)) { - - /* Type code out of range */ - - ACPI_WARNING((AE_INFO, "Invalid Object Type %X", type)); - return_UINT32(ACPI_NS_NORMAL); - } - - return_UINT32((u32) acpi_gbl_ns_properties[type] & ACPI_NS_LOCAL); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_get_internal_name_length - * - * PARAMETERS: Info - Info struct initialized with the - * external name pointer. - * - * RETURN: None - * - * DESCRIPTION: Calculate the length of the internal (AML) namestring - * corresponding to the external (ASL) namestring. - * - ******************************************************************************/ - -void acpi_ns_get_internal_name_length(struct acpi_namestring_info *info) -{ - const char *next_external_char; - u32 i; - - ACPI_FUNCTION_ENTRY(); - - next_external_char = info->external_name; - info->num_carats = 0; - info->num_segments = 0; - info->fully_qualified = FALSE; - - /* - * For the internal name, the required length is 4 bytes per segment, plus - * 1 each for root_prefix, multi_name_prefix_op, segment count, trailing null - * (which is not really needed, but no there's harm in putting it there) - * - * strlen() + 1 covers the first name_seg, which has no path separator - */ - if (acpi_ns_valid_root_prefix(*next_external_char)) { - info->fully_qualified = TRUE; - next_external_char++; - - /* Skip redundant root_prefix, like \\_SB.PCI0.SBRG.EC0 */ - - while (acpi_ns_valid_root_prefix(*next_external_char)) { - next_external_char++; - } - } else { - /* - * Handle Carat prefixes - */ - while (*next_external_char == '^') { - info->num_carats++; - next_external_char++; - } - } - - /* - * Determine the number of ACPI name "segments" by counting the number of - * path separators within the string. Start with one segment since the - * segment count is [(# separators) + 1], and zero separators is ok. - */ - if (*next_external_char) { - info->num_segments = 1; - for (i = 0; next_external_char[i]; i++) { - if (acpi_ns_valid_path_separator(next_external_char[i])) { - info->num_segments++; - } - } - } - - info->length = (ACPI_NAME_SIZE * info->num_segments) + - 4 + info->num_carats; - - info->next_external_char = next_external_char; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_build_internal_name - * - * PARAMETERS: Info - Info struct fully initialized - * - * RETURN: Status - * - * DESCRIPTION: Construct the internal (AML) namestring - * corresponding to the external (ASL) namestring. - * - ******************************************************************************/ - -acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info) -{ - u32 num_segments = info->num_segments; - char *internal_name = info->internal_name; - const char *external_name = info->next_external_char; - char *result = NULL; - u32 i; - - ACPI_FUNCTION_TRACE(ns_build_internal_name); - - /* Setup the correct prefixes, counts, and pointers */ - - if (info->fully_qualified) { - internal_name[0] = '\\'; - - if (num_segments <= 1) { - result = &internal_name[1]; - } else if (num_segments == 2) { - internal_name[1] = AML_DUAL_NAME_PREFIX; - result = &internal_name[2]; - } else { - internal_name[1] = AML_MULTI_NAME_PREFIX_OP; - internal_name[2] = (char)num_segments; - result = &internal_name[3]; - } - } else { - /* - * Not fully qualified. - * Handle Carats first, then append the name segments - */ - i = 0; - if (info->num_carats) { - for (i = 0; i < info->num_carats; i++) { - internal_name[i] = '^'; - } - } - - if (num_segments <= 1) { - result = &internal_name[i]; - } else if (num_segments == 2) { - internal_name[i] = AML_DUAL_NAME_PREFIX; - result = &internal_name[(acpi_size) i + 1]; - } else { - internal_name[i] = AML_MULTI_NAME_PREFIX_OP; - internal_name[(acpi_size) i + 1] = (char)num_segments; - result = &internal_name[(acpi_size) i + 2]; - } - } - - /* Build the name (minus path separators) */ - - for (; num_segments; num_segments--) { - for (i = 0; i < ACPI_NAME_SIZE; i++) { - if (acpi_ns_valid_path_separator(*external_name) || - (*external_name == 0)) { - - /* Pad the segment with underscore(s) if segment is short */ - - result[i] = '_'; - } else { - /* Convert the character to uppercase and save it */ - - result[i] = - (char)ACPI_TOUPPER((int)*external_name); - external_name++; - } - } - - /* Now we must have a path separator, or the pathname is bad */ - - if (!acpi_ns_valid_path_separator(*external_name) && - (*external_name != 0)) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Move on the next segment */ - - external_name++; - result += ACPI_NAME_SIZE; - } - - /* Terminate the string */ - - *result = 0; - - if (info->fully_qualified) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Returning [%p] (abs) \"\\%s\"\n", - internal_name, internal_name)); - } else { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Returning [%p] (rel) \"%s\"\n", - internal_name, internal_name)); - } - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_internalize_name - * - * PARAMETERS: *external_name - External representation of name - * **Converted Name - Where to return the resulting - * internal represention of the name - * - * RETURN: Status - * - * DESCRIPTION: Convert an external representation (e.g. "\_PR_.CPU0") - * to internal form (e.g. 5c 2f 02 5f 50 52 5f 43 50 55 30) - * - *******************************************************************************/ - -acpi_status -acpi_ns_internalize_name(const char *external_name, char **converted_name) -{ - char *internal_name; - struct acpi_namestring_info info; - acpi_status status; - - ACPI_FUNCTION_TRACE(ns_internalize_name); - - if ((!external_name) || (*external_name == 0) || (!converted_name)) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Get the length of the new internal name */ - - info.external_name = external_name; - acpi_ns_get_internal_name_length(&info); - - /* We need a segment to store the internal name */ - - internal_name = ACPI_ALLOCATE_ZEROED(info.length); - if (!internal_name) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Build the name */ - - info.internal_name = internal_name; - status = acpi_ns_build_internal_name(&info); - if (ACPI_FAILURE(status)) { - ACPI_FREE(internal_name); - return_ACPI_STATUS(status); - } - - *converted_name = internal_name; - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_externalize_name - * - * PARAMETERS: internal_name_length - Lenth of the internal name below - * internal_name - Internal representation of name - * converted_name_length - Where the length is returned - * converted_name - Where the resulting external name - * is returned - * - * RETURN: Status - * - * DESCRIPTION: Convert internal name (e.g. 5c 2f 02 5f 50 52 5f 43 50 55 30) - * to its external (printable) form (e.g. "\_PR_.CPU0") - * - ******************************************************************************/ - -acpi_status -acpi_ns_externalize_name(u32 internal_name_length, - const char *internal_name, - u32 * converted_name_length, char **converted_name) -{ - u32 names_index = 0; - u32 num_segments = 0; - u32 required_length; - u32 prefix_length = 0; - u32 i = 0; - u32 j = 0; - - ACPI_FUNCTION_TRACE(ns_externalize_name); - - if (!internal_name_length || !internal_name || !converted_name) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* - * Check for a prefix (one '\' | one or more '^'). - */ - switch (internal_name[0]) { - case '\\': - prefix_length = 1; - break; - - case '^': - for (i = 0; i < internal_name_length; i++) { - if (internal_name[i] == '^') { - prefix_length = i + 1; - } else { - break; - } - } - - if (i == internal_name_length) { - prefix_length = i; - } - - break; - - default: - break; - } - - /* - * Check for object names. Note that there could be 0-255 of these - * 4-byte elements. - */ - if (prefix_length < internal_name_length) { - switch (internal_name[prefix_length]) { - case AML_MULTI_NAME_PREFIX_OP: - - /* 4-byte names */ - - names_index = prefix_length + 2; - num_segments = (u8) - internal_name[(acpi_size) prefix_length + 1]; - break; - - case AML_DUAL_NAME_PREFIX: - - /* Two 4-byte names */ - - names_index = prefix_length + 1; - num_segments = 2; - break; - - case 0: - - /* null_name */ - - names_index = 0; - num_segments = 0; - break; - - default: - - /* one 4-byte name */ - - names_index = prefix_length; - num_segments = 1; - break; - } - } - - /* - * Calculate the length of converted_name, which equals the length - * of the prefix, length of all object names, length of any required - * punctuation ('.') between object names, plus the NULL terminator. - */ - required_length = prefix_length + (4 * num_segments) + - ((num_segments > 0) ? (num_segments - 1) : 0) + 1; - - /* - * Check to see if we're still in bounds. If not, there's a problem - * with internal_name (invalid format). - */ - if (required_length > internal_name_length) { - ACPI_ERROR((AE_INFO, "Invalid internal name")); - return_ACPI_STATUS(AE_BAD_PATHNAME); - } - - /* - * Build converted_name - */ - *converted_name = ACPI_ALLOCATE_ZEROED(required_length); - if (!(*converted_name)) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - j = 0; - - for (i = 0; i < prefix_length; i++) { - (*converted_name)[j++] = internal_name[i]; - } - - if (num_segments > 0) { - for (i = 0; i < num_segments; i++) { - if (i > 0) { - (*converted_name)[j++] = '.'; - } - - (*converted_name)[j++] = internal_name[names_index++]; - (*converted_name)[j++] = internal_name[names_index++]; - (*converted_name)[j++] = internal_name[names_index++]; - (*converted_name)[j++] = internal_name[names_index++]; - } - } - - if (converted_name_length) { - *converted_name_length = (u32) required_length; - } - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_map_handle_to_node - * - * PARAMETERS: Handle - Handle to be converted to an Node - * - * RETURN: A Name table entry pointer - * - * DESCRIPTION: Convert a namespace handle to a real Node - * - * Note: Real integer handles would allow for more verification - * and keep all pointers within this subsystem - however this introduces - * more (and perhaps unnecessary) overhead. - * - ******************************************************************************/ - -struct acpi_namespace_node *acpi_ns_map_handle_to_node(acpi_handle handle) -{ - - ACPI_FUNCTION_ENTRY(); - - /* - * Simple implementation - */ - if ((!handle) || (handle == ACPI_ROOT_OBJECT)) { - return (acpi_gbl_root_node); - } - - /* We can at least attempt to verify the handle */ - - if (ACPI_GET_DESCRIPTOR_TYPE(handle) != ACPI_DESC_TYPE_NAMED) { - return (NULL); - } - - return (ACPI_CAST_PTR(struct acpi_namespace_node, handle)); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_convert_entry_to_handle - * - * PARAMETERS: Node - Node to be converted to a Handle - * - * RETURN: A user handle - * - * DESCRIPTION: Convert a real Node to a namespace handle - * - ******************************************************************************/ - -acpi_handle acpi_ns_convert_entry_to_handle(struct acpi_namespace_node *node) -{ - - /* - * Simple implementation for now; - */ - return ((acpi_handle) node); - -/* Example future implementation --------------------- - - if (!Node) - { - return (NULL); - } - - if (Node == acpi_gbl_root_node) - { - return (ACPI_ROOT_OBJECT); - } - - return ((acpi_handle) Node); -------------------------------------------------------*/ -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_terminate - * - * PARAMETERS: none - * - * RETURN: none - * - * DESCRIPTION: free memory allocated for namespace and ACPI table storage. - * - ******************************************************************************/ - -void acpi_ns_terminate(void) -{ - union acpi_operand_object *obj_desc; - - ACPI_FUNCTION_TRACE(ns_terminate); - - /* - * 1) Free the entire namespace -- all nodes and objects - * - * Delete all object descriptors attached to namepsace nodes - */ - acpi_ns_delete_namespace_subtree(acpi_gbl_root_node); - - /* Detach any objects attached to the root */ - - obj_desc = acpi_ns_get_attached_object(acpi_gbl_root_node); - if (obj_desc) { - acpi_ns_detach_object(acpi_gbl_root_node); - } - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Namespace freed\n")); - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_opens_scope - * - * PARAMETERS: Type - A valid namespace type - * - * RETURN: NEWSCOPE if the passed type "opens a name scope" according - * to the ACPI specification, else 0 - * - ******************************************************************************/ - -u32 acpi_ns_opens_scope(acpi_object_type type) -{ - ACPI_FUNCTION_TRACE_STR(ns_opens_scope, acpi_ut_get_type_name(type)); - - if (!acpi_ut_valid_object_type(type)) { - - /* type code out of range */ - - ACPI_WARNING((AE_INFO, "Invalid Object Type %X", type)); - return_UINT32(ACPI_NS_NORMAL); - } - - return_UINT32(((u32) acpi_gbl_ns_properties[type]) & ACPI_NS_NEWSCOPE); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_get_node - * - * PARAMETERS: *Pathname - Name to be found, in external (ASL) format. The - * \ (backslash) and ^ (carat) prefixes, and the - * . (period) to separate segments are supported. - * prefix_node - Root of subtree to be searched, or NS_ALL for the - * root of the name space. If Name is fully - * qualified (first s8 is '\'), the passed value - * of Scope will not be accessed. - * Flags - Used to indicate whether to perform upsearch or - * not. - * return_node - Where the Node is returned - * - * DESCRIPTION: Look up a name relative to a given scope and return the - * corresponding Node. NOTE: Scope can be null. - * - * MUTEX: Locks namespace - * - ******************************************************************************/ - -acpi_status -acpi_ns_get_node(struct acpi_namespace_node *prefix_node, - const char *pathname, - u32 flags, struct acpi_namespace_node **return_node) -{ - union acpi_generic_state scope_info; - acpi_status status; - char *internal_path; - - ACPI_FUNCTION_TRACE_PTR(ns_get_node, pathname); - - if (!pathname) { - *return_node = prefix_node; - if (!prefix_node) { - *return_node = acpi_gbl_root_node; - } - return_ACPI_STATUS(AE_OK); - } - - /* Convert path to internal representation */ - - status = acpi_ns_internalize_name(pathname, &internal_path); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Must lock namespace during lookup */ - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - /* Setup lookup scope (search starting point) */ - - scope_info.scope.node = prefix_node; - - /* Lookup the name in the namespace */ - - status = acpi_ns_lookup(&scope_info, internal_path, ACPI_TYPE_ANY, - ACPI_IMODE_EXECUTE, - (flags | ACPI_NS_DONT_OPEN_SCOPE), NULL, - return_node); - if (ACPI_FAILURE(status)) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s, %s\n", - pathname, acpi_format_exception(status))); - } - - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - - cleanup: - ACPI_FREE(internal_path); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_get_parent_node - * - * PARAMETERS: Node - Current table entry - * - * RETURN: Parent entry of the given entry - * - * DESCRIPTION: Obtain the parent entry for a given entry in the namespace. - * - ******************************************************************************/ - -struct acpi_namespace_node *acpi_ns_get_parent_node(struct acpi_namespace_node - *node) -{ - ACPI_FUNCTION_ENTRY(); - - if (!node) { - return (NULL); - } - - /* - * Walk to the end of this peer list. The last entry is marked with a flag - * and the peer pointer is really a pointer back to the parent. This saves - * putting a parent back pointer in each and every named object! - */ - while (!(node->flags & ANOBJ_END_OF_PEER_LIST)) { - node = node->peer; - } - - return (node->peer); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_get_next_valid_node - * - * PARAMETERS: Node - Current table entry - * - * RETURN: Next valid Node in the linked node list. NULL if no more valid - * nodes. - * - * DESCRIPTION: Find the next valid node within a name table. - * Useful for implementing NULL-end-of-list loops. - * - ******************************************************************************/ - -struct acpi_namespace_node *acpi_ns_get_next_valid_node(struct - acpi_namespace_node - *node) -{ - - /* If we are at the end of this peer list, return NULL */ - - if (node->flags & ANOBJ_END_OF_PEER_LIST) { - return NULL; - } - - /* Otherwise just return the next peer */ - - return (node->peer); -} - -#ifdef ACPI_OBSOLETE_FUNCTIONS -/******************************************************************************* - * - * FUNCTION: acpi_ns_find_parent_name - * - * PARAMETERS: *child_node - Named Obj whose name is to be found - * - * RETURN: The ACPI name - * - * DESCRIPTION: Search for the given obj in its parent scope and return the - * name segment, or "????" if the parent name can't be found - * (which "should not happen"). - * - ******************************************************************************/ - -acpi_name acpi_ns_find_parent_name(struct acpi_namespace_node * child_node) -{ - struct acpi_namespace_node *parent_node; - - ACPI_FUNCTION_TRACE(ns_find_parent_name); - - if (child_node) { - - /* Valid entry. Get the parent Node */ - - parent_node = acpi_ns_get_parent_node(child_node); - if (parent_node) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Parent of %p [%4.4s] is %p [%4.4s]\n", - child_node, - acpi_ut_get_node_name(child_node), - parent_node, - acpi_ut_get_node_name(parent_node))); - - if (parent_node->name.integer) { - return_VALUE((acpi_name) parent_node->name. - integer); - } - } - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Unable to find parent of %p (%4.4s)\n", - child_node, - acpi_ut_get_node_name(child_node))); - } - - return_VALUE(ACPI_UNKNOWN_NAME); -} -#endif diff --git a/drivers/acpi/namespace/nswalk.c b/drivers/acpi/namespace/nswalk.c deleted file mode 100644 index 71b83e9807da..000000000000 --- a/drivers/acpi/namespace/nswalk.c +++ /dev/null @@ -1,296 +0,0 @@ -/****************************************************************************** - * - * Module Name: nswalk - Functions for walking the ACPI namespace - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_NAMESPACE -ACPI_MODULE_NAME("nswalk") - -/******************************************************************************* - * - * FUNCTION: acpi_ns_get_next_node - * - * PARAMETERS: Type - Type of node to be searched for - * parent_node - Parent node whose children we are - * getting - * child_node - Previous child that was found. - * The NEXT child will be returned - * - * RETURN: struct acpi_namespace_node - Pointer to the NEXT child or NULL if - * none is found. - * - * DESCRIPTION: Return the next peer node within the namespace. If Handle - * is valid, Scope is ignored. Otherwise, the first node - * within Scope is returned. - * - ******************************************************************************/ -struct acpi_namespace_node *acpi_ns_get_next_node(acpi_object_type type, struct acpi_namespace_node - *parent_node, struct acpi_namespace_node - *child_node) -{ - struct acpi_namespace_node *next_node = NULL; - - ACPI_FUNCTION_ENTRY(); - - if (!child_node) { - - /* It's really the parent's _scope_ that we want */ - - next_node = parent_node->child; - } - - else { - /* Start search at the NEXT node */ - - next_node = acpi_ns_get_next_valid_node(child_node); - } - - /* If any type is OK, we are done */ - - if (type == ACPI_TYPE_ANY) { - - /* next_node is NULL if we are at the end-of-list */ - - return (next_node); - } - - /* Must search for the node -- but within this scope only */ - - while (next_node) { - - /* If type matches, we are done */ - - if (next_node->type == type) { - return (next_node); - } - - /* Otherwise, move on to the next node */ - - next_node = acpi_ns_get_next_valid_node(next_node); - } - - /* Not found */ - - return (NULL); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_walk_namespace - * - * PARAMETERS: Type - acpi_object_type to search for - * start_node - Handle in namespace where search begins - * max_depth - Depth to which search is to reach - * Flags - Whether to unlock the NS before invoking - * the callback routine - * user_function - Called when an object of "Type" is found - * Context - Passed to user function - * return_value - from the user_function if terminated early. - * Otherwise, returns NULL. - * RETURNS: Status - * - * DESCRIPTION: Performs a modified depth-first walk of the namespace tree, - * starting (and ending) at the node specified by start_handle. - * The user_function is called whenever a node that matches - * the type parameter is found. If the user function returns - * a non-zero value, the search is terminated immediately and this - * value is returned to the caller. - * - * The point of this procedure is to provide a generic namespace - * walk routine that can be called from multiple places to - * provide multiple services; the User Function can be tailored - * to each task, whether it is a print function, a compare - * function, etc. - * - ******************************************************************************/ - -acpi_status -acpi_ns_walk_namespace(acpi_object_type type, - acpi_handle start_node, - u32 max_depth, - u32 flags, - acpi_walk_callback user_function, - void *context, void **return_value) -{ - acpi_status status; - acpi_status mutex_status; - struct acpi_namespace_node *child_node; - struct acpi_namespace_node *parent_node; - acpi_object_type child_type; - u32 level; - - ACPI_FUNCTION_TRACE(ns_walk_namespace); - - /* Special case for the namespace Root Node */ - - if (start_node == ACPI_ROOT_OBJECT) { - start_node = acpi_gbl_root_node; - } - - /* Null child means "get first node" */ - - parent_node = start_node; - child_node = NULL; - child_type = ACPI_TYPE_ANY; - level = 1; - - /* - * Traverse the tree of nodes until we bubble back up to where we - * started. When Level is zero, the loop is done because we have - * bubbled up to (and passed) the original parent handle (start_entry) - */ - while (level > 0) { - - /* Get the next node in this scope. Null if not found */ - - status = AE_OK; - child_node = - acpi_ns_get_next_node(ACPI_TYPE_ANY, parent_node, - child_node); - if (child_node) { - - /* Found next child, get the type if we are not searching for ANY */ - - if (type != ACPI_TYPE_ANY) { - child_type = child_node->type; - } - - /* - * Ignore all temporary namespace nodes (created during control - * method execution) unless told otherwise. These temporary nodes - * can cause a race condition because they can be deleted during the - * execution of the user function (if the namespace is unlocked before - * invocation of the user function.) Only the debugger namespace dump - * will examine the temporary nodes. - */ - if ((child_node->flags & ANOBJ_TEMPORARY) && - !(flags & ACPI_NS_WALK_TEMP_NODES)) { - status = AE_CTRL_DEPTH; - } - - /* Type must match requested type */ - - else if (child_type == type) { - /* - * Found a matching node, invoke the user callback function. - * Unlock the namespace if flag is set. - */ - if (flags & ACPI_NS_WALK_UNLOCK) { - mutex_status = - acpi_ut_release_mutex - (ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(mutex_status)) { - return_ACPI_STATUS - (mutex_status); - } - } - - status = - user_function(child_node, level, context, - return_value); - - if (flags & ACPI_NS_WALK_UNLOCK) { - mutex_status = - acpi_ut_acquire_mutex - (ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(mutex_status)) { - return_ACPI_STATUS - (mutex_status); - } - } - - switch (status) { - case AE_OK: - case AE_CTRL_DEPTH: - - /* Just keep going */ - break; - - case AE_CTRL_TERMINATE: - - /* Exit now, with OK status */ - - return_ACPI_STATUS(AE_OK); - - default: - - /* All others are valid exceptions */ - - return_ACPI_STATUS(status); - } - } - - /* - * Depth first search: Attempt to go down another level in the - * namespace if we are allowed to. Don't go any further if we have - * reached the caller specified maximum depth or if the user - * function has specified that the maximum depth has been reached. - */ - if ((level < max_depth) && (status != AE_CTRL_DEPTH)) { - if (acpi_ns_get_next_node - (ACPI_TYPE_ANY, child_node, NULL)) { - - /* There is at least one child of this node, visit it */ - - level++; - parent_node = child_node; - child_node = NULL; - } - } - } else { - /* - * No more children of this node (acpi_ns_get_next_node failed), go - * back upwards in the namespace tree to the node's parent. - */ - level--; - child_node = parent_node; - parent_node = acpi_ns_get_parent_node(parent_node); - } - } - - /* Complete walk, not terminated by user function */ - - return_ACPI_STATUS(AE_OK); -} diff --git a/drivers/acpi/namespace/nsxfeval.c b/drivers/acpi/namespace/nsxfeval.c deleted file mode 100644 index 598393a04e5f..000000000000 --- a/drivers/acpi/namespace/nsxfeval.c +++ /dev/null @@ -1,812 +0,0 @@ -/******************************************************************************* - * - * Module Name: nsxfeval - Public interfaces to the ACPI subsystem - * ACPI Object evaluation interfaces - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include - -#define _COMPONENT ACPI_NAMESPACE -ACPI_MODULE_NAME("nsxfeval") - -/* Local prototypes */ -static void acpi_ns_resolve_references(struct acpi_evaluate_info *info); - -#ifdef ACPI_FUTURE_USAGE -/******************************************************************************* - * - * FUNCTION: acpi_evaluate_object_typed - * - * PARAMETERS: Handle - Object handle (optional) - * Pathname - Object pathname (optional) - * external_params - List of parameters to pass to method, - * terminated by NULL. May be NULL - * if no parameters are being passed. - * return_buffer - Where to put method's return value (if - * any). If NULL, no value is returned. - * return_type - Expected type of return object - * - * RETURN: Status - * - * DESCRIPTION: Find and evaluate the given object, passing the given - * parameters if necessary. One of "Handle" or "Pathname" must - * be valid (non-null) - * - ******************************************************************************/ - -acpi_status -acpi_evaluate_object_typed(acpi_handle handle, - acpi_string pathname, - struct acpi_object_list *external_params, - struct acpi_buffer *return_buffer, - acpi_object_type return_type) -{ - acpi_status status; - u8 must_free = FALSE; - - ACPI_FUNCTION_TRACE(acpi_evaluate_object_typed); - - /* Return buffer must be valid */ - - if (!return_buffer) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - if (return_buffer->length == ACPI_ALLOCATE_BUFFER) { - must_free = TRUE; - } - - /* Evaluate the object */ - - status = - acpi_evaluate_object(handle, pathname, external_params, - return_buffer); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Type ANY means "don't care" */ - - if (return_type == ACPI_TYPE_ANY) { - return_ACPI_STATUS(AE_OK); - } - - if (return_buffer->length == 0) { - - /* Error because caller specifically asked for a return value */ - - ACPI_ERROR((AE_INFO, "No return value")); - return_ACPI_STATUS(AE_NULL_OBJECT); - } - - /* Examine the object type returned from evaluate_object */ - - if (((union acpi_object *)return_buffer->pointer)->type == return_type) { - return_ACPI_STATUS(AE_OK); - } - - /* Return object type does not match requested type */ - - ACPI_ERROR((AE_INFO, - "Incorrect return type [%s] requested [%s]", - acpi_ut_get_type_name(((union acpi_object *)return_buffer-> - pointer)->type), - acpi_ut_get_type_name(return_type))); - - if (must_free) { - - /* Caller used ACPI_ALLOCATE_BUFFER, free the return buffer */ - - ACPI_FREE(return_buffer->pointer); - return_buffer->pointer = NULL; - } - - return_buffer->length = 0; - return_ACPI_STATUS(AE_TYPE); -} - -ACPI_EXPORT_SYMBOL(acpi_evaluate_object_typed) -#endif /* ACPI_FUTURE_USAGE */ -/******************************************************************************* - * - * FUNCTION: acpi_evaluate_object - * - * PARAMETERS: Handle - Object handle (optional) - * Pathname - Object pathname (optional) - * external_params - List of parameters to pass to method, - * terminated by NULL. May be NULL - * if no parameters are being passed. - * return_buffer - Where to put method's return value (if - * any). If NULL, no value is returned. - * - * RETURN: Status - * - * DESCRIPTION: Find and evaluate the given object, passing the given - * parameters if necessary. One of "Handle" or "Pathname" must - * be valid (non-null) - * - ******************************************************************************/ -acpi_status -acpi_evaluate_object(acpi_handle handle, - acpi_string pathname, - struct acpi_object_list *external_params, - struct acpi_buffer *return_buffer) -{ - acpi_status status; - struct acpi_evaluate_info *info; - acpi_size buffer_space_needed; - u32 i; - - ACPI_FUNCTION_TRACE(acpi_evaluate_object); - - /* Allocate and initialize the evaluation information block */ - - info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info)); - if (!info) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - info->pathname = pathname; - - /* Convert and validate the device handle */ - - info->prefix_node = acpi_ns_map_handle_to_node(handle); - if (!info->prefix_node) { - status = AE_BAD_PARAMETER; - goto cleanup; - } - - /* - * If there are parameters to be passed to a control method, the external - * objects must all be converted to internal objects - */ - if (external_params && external_params->count) { - /* - * Allocate a new parameter block for the internal objects - * Add 1 to count to allow for null terminated internal list - */ - info->parameters = ACPI_ALLOCATE_ZEROED(((acpi_size) - external_params-> - count + - 1) * sizeof(void *)); - if (!info->parameters) { - status = AE_NO_MEMORY; - goto cleanup; - } - - /* Convert each external object in the list to an internal object */ - - for (i = 0; i < external_params->count; i++) { - status = - acpi_ut_copy_eobject_to_iobject(&external_params-> - pointer[i], - &info-> - parameters[i]); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - } - info->parameters[external_params->count] = NULL; - } - - /* - * Three major cases: - * 1) Fully qualified pathname - * 2) No handle, not fully qualified pathname (error) - * 3) Valid handle - */ - if ((pathname) && (acpi_ns_valid_root_prefix(pathname[0]))) { - - /* The path is fully qualified, just evaluate by name */ - - info->prefix_node = NULL; - status = acpi_ns_evaluate(info); - } else if (!handle) { - /* - * A handle is optional iff a fully qualified pathname is specified. - * Since we've already handled fully qualified names above, this is - * an error - */ - if (!pathname) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Both Handle and Pathname are NULL")); - } else { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Null Handle with relative pathname [%s]", - pathname)); - } - - status = AE_BAD_PARAMETER; - } else { - /* We have a namespace a node and a possible relative path */ - - status = acpi_ns_evaluate(info); - } - - /* - * If we are expecting a return value, and all went well above, - * copy the return value to an external object. - */ - if (return_buffer) { - if (!info->return_object) { - return_buffer->length = 0; - } else { - if (ACPI_GET_DESCRIPTOR_TYPE(info->return_object) == - ACPI_DESC_TYPE_NAMED) { - /* - * If we received a NS Node as a return object, this means that - * the object we are evaluating has nothing interesting to - * return (such as a mutex, etc.) We return an error because - * these types are essentially unsupported by this interface. - * We don't check up front because this makes it easier to add - * support for various types at a later date if necessary. - */ - status = AE_TYPE; - info->return_object = NULL; /* No need to delete a NS Node */ - return_buffer->length = 0; - } - - if (ACPI_SUCCESS(status)) { - - /* Dereference Index and ref_of references */ - - acpi_ns_resolve_references(info); - - /* Get the size of the returned object */ - - status = - acpi_ut_get_object_size(info->return_object, - &buffer_space_needed); - if (ACPI_SUCCESS(status)) { - - /* Validate/Allocate/Clear caller buffer */ - - status = - acpi_ut_initialize_buffer - (return_buffer, - buffer_space_needed); - if (ACPI_FAILURE(status)) { - /* - * Caller's buffer is too small or a new one can't - * be allocated - */ - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Needed buffer size %X, %s\n", - (u32) - buffer_space_needed, - acpi_format_exception - (status))); - } else { - /* We have enough space for the object, build it */ - - status = - acpi_ut_copy_iobject_to_eobject - (info->return_object, - return_buffer); - } - } - } - } - } - - if (info->return_object) { - /* - * Delete the internal return object. NOTE: Interpreter must be - * locked to avoid race condition. - */ - acpi_ex_enter_interpreter(); - - /* Remove one reference on the return object (should delete it) */ - - acpi_ut_remove_reference(info->return_object); - acpi_ex_exit_interpreter(); - } - - cleanup: - - /* Free the input parameter list (if we created one) */ - - if (info->parameters) { - - /* Free the allocated parameter block */ - - acpi_ut_delete_internal_object_list(info->parameters); - } - - ACPI_FREE(info); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_evaluate_object) - -/******************************************************************************* - * - * FUNCTION: acpi_ns_resolve_references - * - * PARAMETERS: Info - Evaluation info block - * - * RETURN: Info->return_object is replaced with the dereferenced object - * - * DESCRIPTION: Dereference certain reference objects. Called before an - * internal return object is converted to an external union acpi_object. - * - * Performs an automatic dereference of Index and ref_of reference objects. - * These reference objects are not supported by the union acpi_object, so this is a - * last resort effort to return something useful. Also, provides compatibility - * with other ACPI implementations. - * - * NOTE: does not handle references within returned package objects or nested - * references, but this support could be added later if found to be necessary. - * - ******************************************************************************/ -static void acpi_ns_resolve_references(struct acpi_evaluate_info *info) -{ - union acpi_operand_object *obj_desc = NULL; - struct acpi_namespace_node *node; - - /* We are interested in reference objects only */ - - if (ACPI_GET_OBJECT_TYPE(info->return_object) != - ACPI_TYPE_LOCAL_REFERENCE) { - return; - } - - /* - * Two types of references are supported - those created by Index and - * ref_of operators. A name reference (AML_NAMEPATH_OP) can be converted - * to an union acpi_object, so it is not dereferenced here. A ddb_handle - * (AML_LOAD_OP) cannot be dereferenced, nor can it be converted to - * an union acpi_object. - */ - switch (info->return_object->reference.class) { - case ACPI_REFCLASS_INDEX: - - obj_desc = *(info->return_object->reference.where); - break; - - case ACPI_REFCLASS_REFOF: - - node = info->return_object->reference.object; - if (node) { - obj_desc = node->object; - } - break; - - default: - return; - } - - /* Replace the existing reference object */ - - if (obj_desc) { - acpi_ut_add_reference(obj_desc); - acpi_ut_remove_reference(info->return_object); - info->return_object = obj_desc; - } - - return; -} - -/******************************************************************************* - * - * FUNCTION: acpi_walk_namespace - * - * PARAMETERS: Type - acpi_object_type to search for - * start_object - Handle in namespace where search begins - * max_depth - Depth to which search is to reach - * user_function - Called when an object of "Type" is found - * Context - Passed to user function - * return_value - Location where return value of - * user_function is put if terminated early - * - * RETURNS Return value from the user_function if terminated early. - * Otherwise, returns NULL. - * - * DESCRIPTION: Performs a modified depth-first walk of the namespace tree, - * starting (and ending) at the object specified by start_handle. - * The user_function is called whenever an object that matches - * the type parameter is found. If the user function returns - * a non-zero value, the search is terminated immediately and this - * value is returned to the caller. - * - * The point of this procedure is to provide a generic namespace - * walk routine that can be called from multiple places to - * provide multiple services; the User Function can be tailored - * to each task, whether it is a print function, a compare - * function, etc. - * - ******************************************************************************/ - -acpi_status -acpi_walk_namespace(acpi_object_type type, - acpi_handle start_object, - u32 max_depth, - acpi_walk_callback user_function, - void *context, void **return_value) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_walk_namespace); - - /* Parameter validation */ - - if ((type > ACPI_TYPE_LOCAL_MAX) || (!max_depth) || (!user_function)) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* - * Lock the namespace around the walk. - * The namespace will be unlocked/locked around each call - * to the user function - since this function - * must be allowed to make Acpi calls itself. - */ - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - status = acpi_ns_walk_namespace(type, start_object, max_depth, - ACPI_NS_WALK_UNLOCK, - user_function, context, return_value); - - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_walk_namespace) - -/******************************************************************************* - * - * FUNCTION: acpi_ns_get_device_callback - * - * PARAMETERS: Callback from acpi_get_device - * - * RETURN: Status - * - * DESCRIPTION: Takes callbacks from walk_namespace and filters out all non- - * present devices, or if they specified a HID, it filters based - * on that. - * - ******************************************************************************/ -static acpi_status -acpi_ns_get_device_callback(acpi_handle obj_handle, - u32 nesting_level, - void *context, void **return_value) -{ - struct acpi_get_devices_info *info = context; - acpi_status status; - struct acpi_namespace_node *node; - u32 flags; - struct acpica_device_id hid; - struct acpi_compatible_id_list *cid; - u32 i; - int found; - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return (status); - } - - node = acpi_ns_map_handle_to_node(obj_handle); - status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return (status); - } - - if (!node) { - return (AE_BAD_PARAMETER); - } - - /* Run _STA to determine if device is present */ - - status = acpi_ut_execute_STA(node, &flags); - if (ACPI_FAILURE(status)) { - return (AE_CTRL_DEPTH); - } - - if (!(flags & ACPI_STA_DEVICE_PRESENT) && - !(flags & ACPI_STA_DEVICE_FUNCTIONING)) { - /* - * Don't examine the children of the device only when the - * device is neither present nor functional. See ACPI spec, - * description of _STA for more information. - */ - return (AE_CTRL_DEPTH); - } - - /* Filter based on device HID & CID */ - - if (info->hid != NULL) { - status = acpi_ut_execute_HID(node, &hid); - if (status == AE_NOT_FOUND) { - return (AE_OK); - } else if (ACPI_FAILURE(status)) { - return (AE_CTRL_DEPTH); - } - - if (ACPI_STRNCMP(hid.value, info->hid, sizeof(hid.value)) != 0) { - - /* Get the list of Compatible IDs */ - - status = acpi_ut_execute_CID(node, &cid); - if (status == AE_NOT_FOUND) { - return (AE_OK); - } else if (ACPI_FAILURE(status)) { - return (AE_CTRL_DEPTH); - } - - /* Walk the CID list */ - - found = 0; - for (i = 0; i < cid->count; i++) { - if (ACPI_STRNCMP(cid->id[i].value, info->hid, - sizeof(struct - acpi_compatible_id)) == - 0) { - found = 1; - break; - } - } - ACPI_FREE(cid); - if (!found) - return (AE_OK); - } - } - - status = info->user_function(obj_handle, nesting_level, info->context, - return_value); - return (status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_get_devices - * - * PARAMETERS: HID - HID to search for. Can be NULL. - * user_function - Called when a matching object is found - * Context - Passed to user function - * return_value - Location where return value of - * user_function is put if terminated early - * - * RETURNS Return value from the user_function if terminated early. - * Otherwise, returns NULL. - * - * DESCRIPTION: Performs a modified depth-first walk of the namespace tree, - * starting (and ending) at the object specified by start_handle. - * The user_function is called whenever an object of type - * Device is found. If the user function returns - * a non-zero value, the search is terminated immediately and this - * value is returned to the caller. - * - * This is a wrapper for walk_namespace, but the callback performs - * additional filtering. Please see acpi_ns_get_device_callback. - * - ******************************************************************************/ - -acpi_status -acpi_get_devices(const char *HID, - acpi_walk_callback user_function, - void *context, void **return_value) -{ - acpi_status status; - struct acpi_get_devices_info info; - - ACPI_FUNCTION_TRACE(acpi_get_devices); - - /* Parameter validation */ - - if (!user_function) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* - * We're going to call their callback from OUR callback, so we need - * to know what it is, and their context parameter. - */ - info.hid = HID; - info.context = context; - info.user_function = user_function; - - /* - * Lock the namespace around the walk. - * The namespace will be unlocked/locked around each call - * to the user function - since this function - * must be allowed to make Acpi calls itself. - */ - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - status = acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK, - acpi_ns_get_device_callback, &info, - return_value); - - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_devices) - -/******************************************************************************* - * - * FUNCTION: acpi_attach_data - * - * PARAMETERS: obj_handle - Namespace node - * Handler - Handler for this attachment - * Data - Pointer to data to be attached - * - * RETURN: Status - * - * DESCRIPTION: Attach arbitrary data and handler to a namespace node. - * - ******************************************************************************/ -acpi_status -acpi_attach_data(acpi_handle obj_handle, - acpi_object_handler handler, void *data) -{ - struct acpi_namespace_node *node; - acpi_status status; - - /* Parameter validation */ - - if (!obj_handle || !handler || !data) { - return (AE_BAD_PARAMETER); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* Convert and validate the handle */ - - node = acpi_ns_map_handle_to_node(obj_handle); - if (!node) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - status = acpi_ns_attach_data(node, handler, data); - - unlock_and_exit: - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return (status); -} - -ACPI_EXPORT_SYMBOL(acpi_attach_data) - -/******************************************************************************* - * - * FUNCTION: acpi_detach_data - * - * PARAMETERS: obj_handle - Namespace node handle - * Handler - Handler used in call to acpi_attach_data - * - * RETURN: Status - * - * DESCRIPTION: Remove data that was previously attached to a node. - * - ******************************************************************************/ -acpi_status -acpi_detach_data(acpi_handle obj_handle, acpi_object_handler handler) -{ - struct acpi_namespace_node *node; - acpi_status status; - - /* Parameter validation */ - - if (!obj_handle || !handler) { - return (AE_BAD_PARAMETER); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* Convert and validate the handle */ - - node = acpi_ns_map_handle_to_node(obj_handle); - if (!node) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - status = acpi_ns_detach_data(node, handler); - - unlock_and_exit: - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return (status); -} - -ACPI_EXPORT_SYMBOL(acpi_detach_data) - -/******************************************************************************* - * - * FUNCTION: acpi_get_data - * - * PARAMETERS: obj_handle - Namespace node - * Handler - Handler used in call to attach_data - * Data - Where the data is returned - * - * RETURN: Status - * - * DESCRIPTION: Retrieve data that was previously attached to a namespace node. - * - ******************************************************************************/ -acpi_status -acpi_get_data(acpi_handle obj_handle, acpi_object_handler handler, void **data) -{ - struct acpi_namespace_node *node; - acpi_status status; - - /* Parameter validation */ - - if (!obj_handle || !handler || !data) { - return (AE_BAD_PARAMETER); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* Convert and validate the handle */ - - node = acpi_ns_map_handle_to_node(obj_handle); - if (!node) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - status = acpi_ns_get_attached_data(node, handler, data); - - unlock_and_exit: - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return (status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_data) diff --git a/drivers/acpi/namespace/nsxfname.c b/drivers/acpi/namespace/nsxfname.c deleted file mode 100644 index 7d5bfa9e9fe9..000000000000 --- a/drivers/acpi/namespace/nsxfname.c +++ /dev/null @@ -1,360 +0,0 @@ -/****************************************************************************** - * - * Module Name: nsxfname - Public interfaces to the ACPI subsystem - * ACPI Namespace oriented interfaces - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_NAMESPACE -ACPI_MODULE_NAME("nsxfname") - -/****************************************************************************** - * - * FUNCTION: acpi_get_handle - * - * PARAMETERS: Parent - Object to search under (search scope). - * Pathname - Pointer to an asciiz string containing the - * name - * ret_handle - Where the return handle is returned - * - * RETURN: Status - * - * DESCRIPTION: This routine will search for a caller specified name in the - * name space. The caller can restrict the search region by - * specifying a non NULL parent. The parent value is itself a - * namespace handle. - * - ******************************************************************************/ -acpi_status -acpi_get_handle(acpi_handle parent, - acpi_string pathname, acpi_handle * ret_handle) -{ - acpi_status status; - struct acpi_namespace_node *node = NULL; - struct acpi_namespace_node *prefix_node = NULL; - - ACPI_FUNCTION_ENTRY(); - - /* Parameter Validation */ - - if (!ret_handle || !pathname) { - return (AE_BAD_PARAMETER); - } - - /* Convert a parent handle to a prefix node */ - - if (parent) { - prefix_node = acpi_ns_map_handle_to_node(parent); - if (!prefix_node) { - return (AE_BAD_PARAMETER); - } - } - - /* - * Valid cases are: - * 1) Fully qualified pathname - * 2) Parent + Relative pathname - * - * Error for - */ - if (acpi_ns_valid_root_prefix(pathname[0])) { - - /* Pathname is fully qualified (starts with '\') */ - - /* Special case for root-only, since we can't search for it */ - - if (!ACPI_STRCMP(pathname, ACPI_NS_ROOT_PATH)) { - *ret_handle = - acpi_ns_convert_entry_to_handle(acpi_gbl_root_node); - return (AE_OK); - } - } else if (!prefix_node) { - - /* Relative path with null prefix is disallowed */ - - return (AE_BAD_PARAMETER); - } - - /* Find the Node and convert to a handle */ - - status = - acpi_ns_get_node(prefix_node, pathname, ACPI_NS_NO_UPSEARCH, &node); - if (ACPI_SUCCESS(status)) { - *ret_handle = acpi_ns_convert_entry_to_handle(node); - } - - return (status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_handle) - -/****************************************************************************** - * - * FUNCTION: acpi_get_name - * - * PARAMETERS: Handle - Handle to be converted to a pathname - * name_type - Full pathname or single segment - * Buffer - Buffer for returned path - * - * RETURN: Pointer to a string containing the fully qualified Name. - * - * DESCRIPTION: This routine returns the fully qualified name associated with - * the Handle parameter. This and the acpi_pathname_to_handle are - * complementary functions. - * - ******************************************************************************/ -acpi_status -acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer) -{ - acpi_status status; - struct acpi_namespace_node *node; - - /* Parameter validation */ - - if (name_type > ACPI_NAME_TYPE_MAX) { - return (AE_BAD_PARAMETER); - } - - status = acpi_ut_validate_buffer(buffer); - if (ACPI_FAILURE(status)) { - return (status); - } - - if (name_type == ACPI_FULL_PATHNAME) { - - /* Get the full pathname (From the namespace root) */ - - status = acpi_ns_handle_to_pathname(handle, buffer); - return (status); - } - - /* - * Wants the single segment ACPI name. - * Validate handle and convert to a namespace Node - */ - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return (status); - } - - node = acpi_ns_map_handle_to_node(handle); - if (!node) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - /* Validate/Allocate/Clear caller buffer */ - - status = acpi_ut_initialize_buffer(buffer, ACPI_PATH_SEGMENT_LENGTH); - if (ACPI_FAILURE(status)) { - goto unlock_and_exit; - } - - /* Just copy the ACPI name from the Node and zero terminate it */ - - ACPI_STRNCPY(buffer->pointer, acpi_ut_get_node_name(node), - ACPI_NAME_SIZE); - ((char *)buffer->pointer)[ACPI_NAME_SIZE] = 0; - status = AE_OK; - - unlock_and_exit: - - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return (status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_name) - -/****************************************************************************** - * - * FUNCTION: acpi_get_object_info - * - * PARAMETERS: Handle - Object Handle - * Buffer - Where the info is returned - * - * RETURN: Status - * - * DESCRIPTION: Returns information about an object as gleaned from the - * namespace node and possibly by running several standard - * control methods (Such as in the case of a device.) - * - ******************************************************************************/ -acpi_status -acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer) -{ - acpi_status status; - struct acpi_namespace_node *node; - struct acpi_device_info *info; - struct acpi_device_info *return_info; - struct acpi_compatible_id_list *cid_list = NULL; - acpi_size size; - - /* Parameter validation */ - - if (!handle || !buffer) { - return (AE_BAD_PARAMETER); - } - - status = acpi_ut_validate_buffer(buffer); - if (ACPI_FAILURE(status)) { - return (status); - } - - info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_device_info)); - if (!info) { - return (AE_NO_MEMORY); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - node = acpi_ns_map_handle_to_node(handle); - if (!node) { - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - status = AE_BAD_PARAMETER; - goto cleanup; - } - - /* Init return structure */ - - size = sizeof(struct acpi_device_info); - - info->type = node->type; - info->name = node->name.integer; - info->valid = 0; - - if (node->type == ACPI_TYPE_METHOD) { - info->param_count = node->object->method.param_count; - } - - status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - /* If not a device, we are all done */ - - if (info->type == ACPI_TYPE_DEVICE) { - /* - * Get extra info for ACPI Devices objects only: - * Run the Device _HID, _UID, _CID, _STA, _ADR and _sx_d methods. - * - * Note: none of these methods are required, so they may or may - * not be present for this device. The Info->Valid bitfield is used - * to indicate which methods were found and ran successfully. - */ - - /* Execute the Device._HID method */ - - status = acpi_ut_execute_HID(node, &info->hardware_id); - if (ACPI_SUCCESS(status)) { - info->valid |= ACPI_VALID_HID; - } - - /* Execute the Device._UID method */ - - status = acpi_ut_execute_UID(node, &info->unique_id); - if (ACPI_SUCCESS(status)) { - info->valid |= ACPI_VALID_UID; - } - - /* Execute the Device._CID method */ - - status = acpi_ut_execute_CID(node, &cid_list); - if (ACPI_SUCCESS(status)) { - size += cid_list->size; - info->valid |= ACPI_VALID_CID; - } - - /* Execute the Device._STA method */ - - status = acpi_ut_execute_STA(node, &info->current_status); - if (ACPI_SUCCESS(status)) { - info->valid |= ACPI_VALID_STA; - } - - /* Execute the Device._ADR method */ - - status = acpi_ut_evaluate_numeric_object(METHOD_NAME__ADR, node, - &info->address); - if (ACPI_SUCCESS(status)) { - info->valid |= ACPI_VALID_ADR; - } - - /* Execute the Device._sx_d methods */ - - status = acpi_ut_execute_sxds(node, info->highest_dstates); - if (ACPI_SUCCESS(status)) { - info->valid |= ACPI_VALID_SXDS; - } - } - - /* Validate/Allocate/Clear caller buffer */ - - status = acpi_ut_initialize_buffer(buffer, size); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - /* Populate the return buffer */ - - return_info = buffer->pointer; - ACPI_MEMCPY(return_info, info, sizeof(struct acpi_device_info)); - - if (cid_list) { - ACPI_MEMCPY(&return_info->compatibility_id, cid_list, - cid_list->size); - } - - cleanup: - ACPI_FREE(info); - if (cid_list) { - ACPI_FREE(cid_list); - } - return (status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_object_info) diff --git a/drivers/acpi/namespace/nsxfobj.c b/drivers/acpi/namespace/nsxfobj.c deleted file mode 100644 index 80e6322d59c5..000000000000 --- a/drivers/acpi/namespace/nsxfobj.c +++ /dev/null @@ -1,287 +0,0 @@ -/******************************************************************************* - * - * Module Name: nsxfobj - Public interfaces to the ACPI subsystem - * ACPI Object oriented interfaces - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_NAMESPACE -ACPI_MODULE_NAME("nsxfobj") - -/******************************************************************************* - * - * FUNCTION: acpi_get_id - * - * PARAMETERS: Handle - Handle of object whose id is desired - * ret_id - Where the id will be placed - * - * RETURN: Status - * - * DESCRIPTION: This routine returns the owner id associated with a handle - * - ******************************************************************************/ -acpi_status acpi_get_id(acpi_handle handle, acpi_owner_id * ret_id) -{ - struct acpi_namespace_node *node; - acpi_status status; - - /* Parameter Validation */ - - if (!ret_id) { - return (AE_BAD_PARAMETER); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* Convert and validate the handle */ - - node = acpi_ns_map_handle_to_node(handle); - if (!node) { - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return (AE_BAD_PARAMETER); - } - - *ret_id = node->owner_id; - - status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return (status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_id) - -/******************************************************************************* - * - * FUNCTION: acpi_get_type - * - * PARAMETERS: Handle - Handle of object whose type is desired - * ret_type - Where the type will be placed - * - * RETURN: Status - * - * DESCRIPTION: This routine returns the type associatd with a particular handle - * - ******************************************************************************/ -acpi_status acpi_get_type(acpi_handle handle, acpi_object_type * ret_type) -{ - struct acpi_namespace_node *node; - acpi_status status; - - /* Parameter Validation */ - - if (!ret_type) { - return (AE_BAD_PARAMETER); - } - - /* - * Special case for the predefined Root Node - * (return type ANY) - */ - if (handle == ACPI_ROOT_OBJECT) { - *ret_type = ACPI_TYPE_ANY; - return (AE_OK); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* Convert and validate the handle */ - - node = acpi_ns_map_handle_to_node(handle); - if (!node) { - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return (AE_BAD_PARAMETER); - } - - *ret_type = node->type; - - status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return (status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_type) - -/******************************************************************************* - * - * FUNCTION: acpi_get_parent - * - * PARAMETERS: Handle - Handle of object whose parent is desired - * ret_handle - Where the parent handle will be placed - * - * RETURN: Status - * - * DESCRIPTION: Returns a handle to the parent of the object represented by - * Handle. - * - ******************************************************************************/ -acpi_status acpi_get_parent(acpi_handle handle, acpi_handle * ret_handle) -{ - struct acpi_namespace_node *node; - acpi_status status; - - if (!ret_handle) { - return (AE_BAD_PARAMETER); - } - - /* Special case for the predefined Root Node (no parent) */ - - if (handle == ACPI_ROOT_OBJECT) { - return (AE_NULL_ENTRY); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* Convert and validate the handle */ - - node = acpi_ns_map_handle_to_node(handle); - if (!node) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - /* Get the parent entry */ - - *ret_handle = - acpi_ns_convert_entry_to_handle(acpi_ns_get_parent_node(node)); - - /* Return exception if parent is null */ - - if (!acpi_ns_get_parent_node(node)) { - status = AE_NULL_ENTRY; - } - - unlock_and_exit: - - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return (status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_parent) - -/******************************************************************************* - * - * FUNCTION: acpi_get_next_object - * - * PARAMETERS: Type - Type of object to be searched for - * Parent - Parent object whose children we are getting - * last_child - Previous child that was found. - * The NEXT child will be returned - * ret_handle - Where handle to the next object is placed - * - * RETURN: Status - * - * DESCRIPTION: Return the next peer object within the namespace. If Handle is - * valid, Scope is ignored. Otherwise, the first object within - * Scope is returned. - * - ******************************************************************************/ -acpi_status -acpi_get_next_object(acpi_object_type type, - acpi_handle parent, - acpi_handle child, acpi_handle * ret_handle) -{ - acpi_status status; - struct acpi_namespace_node *node; - struct acpi_namespace_node *parent_node = NULL; - struct acpi_namespace_node *child_node = NULL; - - /* Parameter validation */ - - if (type > ACPI_TYPE_EXTERNAL_MAX) { - return (AE_BAD_PARAMETER); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* If null handle, use the parent */ - - if (!child) { - - /* Start search at the beginning of the specified scope */ - - parent_node = acpi_ns_map_handle_to_node(parent); - if (!parent_node) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - } else { - /* Non-null handle, ignore the parent */ - /* Convert and validate the handle */ - - child_node = acpi_ns_map_handle_to_node(child); - if (!child_node) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - } - - /* Internal function does the real work */ - - node = acpi_ns_get_next_node(type, parent_node, child_node); - if (!node) { - status = AE_NOT_FOUND; - goto unlock_and_exit; - } - - if (ret_handle) { - *ret_handle = acpi_ns_convert_entry_to_handle(node); - } - - unlock_and_exit: - - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return (status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_next_object) diff --git a/drivers/acpi/parser/Makefile b/drivers/acpi/parser/Makefile deleted file mode 100644 index db24ee09cf11..000000000000 --- a/drivers/acpi/parser/Makefile +++ /dev/null @@ -1,8 +0,0 @@ -# -# Makefile for all Linux ACPI interpreter subdirectories -# - -obj-y := psargs.o psparse.o psloop.o pstree.o pswalk.o \ - psopcode.o psscope.o psutils.o psxface.o - -EXTRA_CFLAGS += $(ACPI_CFLAGS) diff --git a/drivers/acpi/parser/psargs.c b/drivers/acpi/parser/psargs.c deleted file mode 100644 index 852f3a83b2e6..000000000000 --- a/drivers/acpi/parser/psargs.c +++ /dev/null @@ -1,752 +0,0 @@ -/****************************************************************************** - * - * Module Name: psargs - Parse AML opcode arguments - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_PARSER -ACPI_MODULE_NAME("psargs") - -/* Local prototypes */ -static u32 -acpi_ps_get_next_package_length(struct acpi_parse_state *parser_state); - -static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state - *parser_state); - -/******************************************************************************* - * - * FUNCTION: acpi_ps_get_next_package_length - * - * PARAMETERS: parser_state - Current parser state object - * - * RETURN: Decoded package length. On completion, the AML pointer points - * past the length byte or bytes. - * - * DESCRIPTION: Decode and return a package length field. - * Note: Largest package length is 28 bits, from ACPI specification - * - ******************************************************************************/ - -static u32 -acpi_ps_get_next_package_length(struct acpi_parse_state *parser_state) -{ - u8 *aml = parser_state->aml; - u32 package_length = 0; - u32 byte_count; - u8 byte_zero_mask = 0x3F; /* Default [0:5] */ - - ACPI_FUNCTION_TRACE(ps_get_next_package_length); - - /* - * Byte 0 bits [6:7] contain the number of additional bytes - * used to encode the package length, either 0,1,2, or 3 - */ - byte_count = (aml[0] >> 6); - parser_state->aml += ((acpi_size) byte_count + 1); - - /* Get bytes 3, 2, 1 as needed */ - - while (byte_count) { - /* - * Final bit positions for the package length bytes: - * Byte3->[20:27] - * Byte2->[12:19] - * Byte1->[04:11] - * Byte0->[00:03] - */ - package_length |= (aml[byte_count] << ((byte_count << 3) - 4)); - - byte_zero_mask = 0x0F; /* Use bits [0:3] of byte 0 */ - byte_count--; - } - - /* Byte 0 is a special case, either bits [0:3] or [0:5] are used */ - - package_length |= (aml[0] & byte_zero_mask); - return_UINT32(package_length); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_get_next_package_end - * - * PARAMETERS: parser_state - Current parser state object - * - * RETURN: Pointer to end-of-package +1 - * - * DESCRIPTION: Get next package length and return a pointer past the end of - * the package. Consumes the package length field - * - ******************************************************************************/ - -u8 *acpi_ps_get_next_package_end(struct acpi_parse_state *parser_state) -{ - u8 *start = parser_state->aml; - u32 package_length; - - ACPI_FUNCTION_TRACE(ps_get_next_package_end); - - /* Function below updates parser_state->Aml */ - - package_length = acpi_ps_get_next_package_length(parser_state); - - return_PTR(start + package_length); /* end of package */ -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_get_next_namestring - * - * PARAMETERS: parser_state - Current parser state object - * - * RETURN: Pointer to the start of the name string (pointer points into - * the AML. - * - * DESCRIPTION: Get next raw namestring within the AML stream. Handles all name - * prefix characters. Set parser state to point past the string. - * (Name is consumed from the AML.) - * - ******************************************************************************/ - -char *acpi_ps_get_next_namestring(struct acpi_parse_state *parser_state) -{ - u8 *start = parser_state->aml; - u8 *end = parser_state->aml; - - ACPI_FUNCTION_TRACE(ps_get_next_namestring); - - /* Point past any namestring prefix characters (backslash or carat) */ - - while (acpi_ps_is_prefix_char(*end)) { - end++; - } - - /* Decode the path prefix character */ - - switch (*end) { - case 0: - - /* null_name */ - - if (end == start) { - start = NULL; - } - end++; - break; - - case AML_DUAL_NAME_PREFIX: - - /* Two name segments */ - - end += 1 + (2 * ACPI_NAME_SIZE); - break; - - case AML_MULTI_NAME_PREFIX_OP: - - /* Multiple name segments, 4 chars each, count in next byte */ - - end += 2 + (*(end + 1) * ACPI_NAME_SIZE); - break; - - default: - - /* Single name segment */ - - end += ACPI_NAME_SIZE; - break; - } - - parser_state->aml = end; - return_PTR((char *)start); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_get_next_namepath - * - * PARAMETERS: parser_state - Current parser state object - * Arg - Where the namepath will be stored - * arg_count - If the namepath points to a control method - * the method's argument is returned here. - * possible_method_call - Whether the namepath can possibly be the - * start of a method call - * - * RETURN: Status - * - * DESCRIPTION: Get next name (if method call, return # of required args). - * Names are looked up in the internal namespace to determine - * if the name represents a control method. If a method - * is found, the number of arguments to the method is returned. - * This information is critical for parsing to continue correctly. - * - ******************************************************************************/ - -acpi_status -acpi_ps_get_next_namepath(struct acpi_walk_state *walk_state, - struct acpi_parse_state *parser_state, - union acpi_parse_object *arg, u8 possible_method_call) -{ - acpi_status status; - char *path; - union acpi_parse_object *name_op; - union acpi_operand_object *method_desc; - struct acpi_namespace_node *node; - u8 *start = parser_state->aml; - - ACPI_FUNCTION_TRACE(ps_get_next_namepath); - - path = acpi_ps_get_next_namestring(parser_state); - acpi_ps_init_op(arg, AML_INT_NAMEPATH_OP); - - /* Null path case is allowed, just exit */ - - if (!path) { - arg->common.value.name = path; - return_ACPI_STATUS(AE_OK); - } - - /* - * Lookup the name in the internal namespace, starting with the current - * scope. We don't want to add anything new to the namespace here, - * however, so we use MODE_EXECUTE. - * Allow searching of the parent tree, but don't open a new scope - - * we just want to lookup the object (must be mode EXECUTE to perform - * the upsearch) - */ - status = acpi_ns_lookup(walk_state->scope_info, path, - ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE, - ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, - NULL, &node); - - /* - * If this name is a control method invocation, we must - * setup the method call - */ - if (ACPI_SUCCESS(status) && - possible_method_call && (node->type == ACPI_TYPE_METHOD)) { - if (walk_state->opcode == AML_UNLOAD_OP) { - /* - * acpi_ps_get_next_namestring has increased the AML pointer, - * so we need to restore the saved AML pointer for method call. - */ - walk_state->parser_state.aml = start; - walk_state->arg_count = 1; - acpi_ps_init_op(arg, AML_INT_METHODCALL_OP); - return_ACPI_STATUS(AE_OK); - } - - /* This name is actually a control method invocation */ - - method_desc = acpi_ns_get_attached_object(node); - ACPI_DEBUG_PRINT((ACPI_DB_PARSE, - "Control Method - %p Desc %p Path=%p\n", node, - method_desc, path)); - - name_op = acpi_ps_alloc_op(AML_INT_NAMEPATH_OP); - if (!name_op) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Change Arg into a METHOD CALL and attach name to it */ - - acpi_ps_init_op(arg, AML_INT_METHODCALL_OP); - name_op->common.value.name = path; - - /* Point METHODCALL/NAME to the METHOD Node */ - - name_op->common.node = node; - acpi_ps_append_arg(arg, name_op); - - if (!method_desc) { - ACPI_ERROR((AE_INFO, - "Control Method %p has no attached object", - node)); - return_ACPI_STATUS(AE_AML_INTERNAL); - } - - ACPI_DEBUG_PRINT((ACPI_DB_PARSE, - "Control Method - %p Args %X\n", - node, method_desc->method.param_count)); - - /* Get the number of arguments to expect */ - - walk_state->arg_count = method_desc->method.param_count; - return_ACPI_STATUS(AE_OK); - } - - /* - * Special handling if the name was not found during the lookup - - * some not_found cases are allowed - */ - if (status == AE_NOT_FOUND) { - - /* 1) not_found is ok during load pass 1/2 (allow forward references) */ - - if ((walk_state->parse_flags & ACPI_PARSE_MODE_MASK) != - ACPI_PARSE_EXECUTE) { - status = AE_OK; - } - - /* 2) not_found during a cond_ref_of(x) is ok by definition */ - - else if (walk_state->op->common.aml_opcode == - AML_COND_REF_OF_OP) { - status = AE_OK; - } - - /* - * 3) not_found while building a Package is ok at this point, we - * may flag as an error later if slack mode is not enabled. - * (Some ASL code depends on allowing this behavior) - */ - else if ((arg->common.parent) && - ((arg->common.parent->common.aml_opcode == - AML_PACKAGE_OP) - || (arg->common.parent->common.aml_opcode == - AML_VAR_PACKAGE_OP))) { - status = AE_OK; - } - } - - /* Final exception check (may have been changed from code above) */ - - if (ACPI_FAILURE(status)) { - ACPI_ERROR_NAMESPACE(path, status); - - if ((walk_state->parse_flags & ACPI_PARSE_MODE_MASK) == - ACPI_PARSE_EXECUTE) { - - /* Report a control method execution error */ - - status = acpi_ds_method_error(status, walk_state); - } - } - - /* Save the namepath */ - - arg->common.value.name = path; - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_get_next_simple_arg - * - * PARAMETERS: parser_state - Current parser state object - * arg_type - The argument type (AML_*_ARG) - * Arg - Where the argument is returned - * - * RETURN: None - * - * DESCRIPTION: Get the next simple argument (constant, string, or namestring) - * - ******************************************************************************/ - -void -acpi_ps_get_next_simple_arg(struct acpi_parse_state *parser_state, - u32 arg_type, union acpi_parse_object *arg) -{ - u32 length; - u16 opcode; - u8 *aml = parser_state->aml; - - ACPI_FUNCTION_TRACE_U32(ps_get_next_simple_arg, arg_type); - - switch (arg_type) { - case ARGP_BYTEDATA: - - /* Get 1 byte from the AML stream */ - - opcode = AML_BYTE_OP; - arg->common.value.integer = (acpi_integer) * aml; - length = 1; - break; - - case ARGP_WORDDATA: - - /* Get 2 bytes from the AML stream */ - - opcode = AML_WORD_OP; - ACPI_MOVE_16_TO_64(&arg->common.value.integer, aml); - length = 2; - break; - - case ARGP_DWORDDATA: - - /* Get 4 bytes from the AML stream */ - - opcode = AML_DWORD_OP; - ACPI_MOVE_32_TO_64(&arg->common.value.integer, aml); - length = 4; - break; - - case ARGP_QWORDDATA: - - /* Get 8 bytes from the AML stream */ - - opcode = AML_QWORD_OP; - ACPI_MOVE_64_TO_64(&arg->common.value.integer, aml); - length = 8; - break; - - case ARGP_CHARLIST: - - /* Get a pointer to the string, point past the string */ - - opcode = AML_STRING_OP; - arg->common.value.string = ACPI_CAST_PTR(char, aml); - - /* Find the null terminator */ - - length = 0; - while (aml[length]) { - length++; - } - length++; - break; - - case ARGP_NAME: - case ARGP_NAMESTRING: - - acpi_ps_init_op(arg, AML_INT_NAMEPATH_OP); - arg->common.value.name = - acpi_ps_get_next_namestring(parser_state); - return_VOID; - - default: - - ACPI_ERROR((AE_INFO, "Invalid ArgType %X", arg_type)); - return_VOID; - } - - acpi_ps_init_op(arg, opcode); - parser_state->aml += length; - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_get_next_field - * - * PARAMETERS: parser_state - Current parser state object - * - * RETURN: A newly allocated FIELD op - * - * DESCRIPTION: Get next field (named_field, reserved_field, or access_field) - * - ******************************************************************************/ - -static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state - *parser_state) -{ - u32 aml_offset = (u32) - ACPI_PTR_DIFF(parser_state->aml, - parser_state->aml_start); - union acpi_parse_object *field; - u16 opcode; - u32 name; - - ACPI_FUNCTION_TRACE(ps_get_next_field); - - /* Determine field type */ - - switch (ACPI_GET8(parser_state->aml)) { - default: - - opcode = AML_INT_NAMEDFIELD_OP; - break; - - case 0x00: - - opcode = AML_INT_RESERVEDFIELD_OP; - parser_state->aml++; - break; - - case 0x01: - - opcode = AML_INT_ACCESSFIELD_OP; - parser_state->aml++; - break; - } - - /* Allocate a new field op */ - - field = acpi_ps_alloc_op(opcode); - if (!field) { - return_PTR(NULL); - } - - field->common.aml_offset = aml_offset; - - /* Decode the field type */ - - switch (opcode) { - case AML_INT_NAMEDFIELD_OP: - - /* Get the 4-character name */ - - ACPI_MOVE_32_TO_32(&name, parser_state->aml); - acpi_ps_set_name(field, name); - parser_state->aml += ACPI_NAME_SIZE; - - /* Get the length which is encoded as a package length */ - - field->common.value.size = - acpi_ps_get_next_package_length(parser_state); - break; - - case AML_INT_RESERVEDFIELD_OP: - - /* Get the length which is encoded as a package length */ - - field->common.value.size = - acpi_ps_get_next_package_length(parser_state); - break; - - case AML_INT_ACCESSFIELD_OP: - - /* - * Get access_type and access_attrib and merge into the field Op - * access_type is first operand, access_attribute is second - */ - field->common.value.integer = - (((u32) ACPI_GET8(parser_state->aml) << 8)); - parser_state->aml++; - field->common.value.integer |= ACPI_GET8(parser_state->aml); - parser_state->aml++; - break; - - default: - - /* Opcode was set in previous switch */ - break; - } - - return_PTR(field); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_get_next_arg - * - * PARAMETERS: walk_state - Current state - * parser_state - Current parser state object - * arg_type - The argument type (AML_*_ARG) - * return_arg - Where the next arg is returned - * - * RETURN: Status, and an op object containing the next argument. - * - * DESCRIPTION: Get next argument (including complex list arguments that require - * pushing the parser stack) - * - ******************************************************************************/ - -acpi_status -acpi_ps_get_next_arg(struct acpi_walk_state *walk_state, - struct acpi_parse_state *parser_state, - u32 arg_type, union acpi_parse_object **return_arg) -{ - union acpi_parse_object *arg = NULL; - union acpi_parse_object *prev = NULL; - union acpi_parse_object *field; - u32 subop; - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE_PTR(ps_get_next_arg, parser_state); - - switch (arg_type) { - case ARGP_BYTEDATA: - case ARGP_WORDDATA: - case ARGP_DWORDDATA: - case ARGP_CHARLIST: - case ARGP_NAME: - case ARGP_NAMESTRING: - - /* Constants, strings, and namestrings are all the same size */ - - arg = acpi_ps_alloc_op(AML_BYTE_OP); - if (!arg) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - acpi_ps_get_next_simple_arg(parser_state, arg_type, arg); - break; - - case ARGP_PKGLENGTH: - - /* Package length, nothing returned */ - - parser_state->pkg_end = - acpi_ps_get_next_package_end(parser_state); - break; - - case ARGP_FIELDLIST: - - if (parser_state->aml < parser_state->pkg_end) { - - /* Non-empty list */ - - while (parser_state->aml < parser_state->pkg_end) { - field = acpi_ps_get_next_field(parser_state); - if (!field) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - if (prev) { - prev->common.next = field; - } else { - arg = field; - } - prev = field; - } - - /* Skip to End of byte data */ - - parser_state->aml = parser_state->pkg_end; - } - break; - - case ARGP_BYTELIST: - - if (parser_state->aml < parser_state->pkg_end) { - - /* Non-empty list */ - - arg = acpi_ps_alloc_op(AML_INT_BYTELIST_OP); - if (!arg) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Fill in bytelist data */ - - arg->common.value.size = (u32) - ACPI_PTR_DIFF(parser_state->pkg_end, - parser_state->aml); - arg->named.data = parser_state->aml; - - /* Skip to End of byte data */ - - parser_state->aml = parser_state->pkg_end; - } - break; - - case ARGP_TARGET: - case ARGP_SUPERNAME: - case ARGP_SIMPLENAME: - - subop = acpi_ps_peek_opcode(parser_state); - if (subop == 0 || - acpi_ps_is_leading_char(subop) || - acpi_ps_is_prefix_char(subop)) { - - /* null_name or name_string */ - - arg = acpi_ps_alloc_op(AML_INT_NAMEPATH_OP); - if (!arg) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* To support super_name arg of Unload */ - - if (walk_state->opcode == AML_UNLOAD_OP) { - status = - acpi_ps_get_next_namepath(walk_state, - parser_state, arg, - 1); - - /* - * If the super_name arg of Unload is a method call, - * we have restored the AML pointer, just free this Arg - */ - if (arg->common.aml_opcode == - AML_INT_METHODCALL_OP) { - acpi_ps_free_op(arg); - arg = NULL; - } - } else { - status = - acpi_ps_get_next_namepath(walk_state, - parser_state, arg, - 0); - } - } else { - /* Single complex argument, nothing returned */ - - walk_state->arg_count = 1; - } - break; - - case ARGP_DATAOBJ: - case ARGP_TERMARG: - - /* Single complex argument, nothing returned */ - - walk_state->arg_count = 1; - break; - - case ARGP_DATAOBJLIST: - case ARGP_TERMLIST: - case ARGP_OBJLIST: - - if (parser_state->aml < parser_state->pkg_end) { - - /* Non-empty list of variable arguments, nothing returned */ - - walk_state->arg_count = ACPI_VAR_ARGS; - } - break; - - default: - - ACPI_ERROR((AE_INFO, "Invalid ArgType: %X", arg_type)); - status = AE_AML_OPERAND_TYPE; - break; - } - - *return_arg = arg; - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/parser/psloop.c b/drivers/acpi/parser/psloop.c deleted file mode 100644 index fd6648f0d65f..000000000000 --- a/drivers/acpi/parser/psloop.c +++ /dev/null @@ -1,1088 +0,0 @@ -/****************************************************************************** - * - * Module Name: psloop - Main AML parse loop - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -/* - * Parse the AML and build an operation tree as most interpreters, (such as - * Perl) do. Parsing is done by hand rather than with a YACC generated parser - * to tightly constrain stack and dynamic memory usage. Parsing is kept - * flexible and the code fairly compact by parsing based on a list of AML - * opcode templates in aml_op_info[]. - */ - -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_PARSER -ACPI_MODULE_NAME("psloop") - -static u32 acpi_gbl_depth = 0; - -/* Local prototypes */ - -static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state); - -static acpi_status -acpi_ps_build_named_op(struct acpi_walk_state *walk_state, - u8 * aml_op_start, - union acpi_parse_object *unnamed_op, - union acpi_parse_object **op); - -static acpi_status -acpi_ps_create_op(struct acpi_walk_state *walk_state, - u8 * aml_op_start, union acpi_parse_object **new_op); - -static acpi_status -acpi_ps_get_arguments(struct acpi_walk_state *walk_state, - u8 * aml_op_start, union acpi_parse_object *op); - -static acpi_status -acpi_ps_complete_op(struct acpi_walk_state *walk_state, - union acpi_parse_object **op, acpi_status status); - -static acpi_status -acpi_ps_complete_final_op(struct acpi_walk_state *walk_state, - union acpi_parse_object *op, acpi_status status); - -/******************************************************************************* - * - * FUNCTION: acpi_ps_get_aml_opcode - * - * PARAMETERS: walk_state - Current state - * - * RETURN: Status - * - * DESCRIPTION: Extract the next AML opcode from the input stream. - * - ******************************************************************************/ - -static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state) -{ - - ACPI_FUNCTION_TRACE_PTR(ps_get_aml_opcode, walk_state); - - walk_state->aml_offset = - (u32) ACPI_PTR_DIFF(walk_state->parser_state.aml, - walk_state->parser_state.aml_start); - walk_state->opcode = acpi_ps_peek_opcode(&(walk_state->parser_state)); - - /* - * First cut to determine what we have found: - * 1) A valid AML opcode - * 2) A name string - * 3) An unknown/invalid opcode - */ - walk_state->op_info = acpi_ps_get_opcode_info(walk_state->opcode); - - switch (walk_state->op_info->class) { - case AML_CLASS_ASCII: - case AML_CLASS_PREFIX: - /* - * Starts with a valid prefix or ASCII char, this is a name - * string. Convert the bare name string to a namepath. - */ - walk_state->opcode = AML_INT_NAMEPATH_OP; - walk_state->arg_types = ARGP_NAMESTRING; - break; - - case AML_CLASS_UNKNOWN: - - /* The opcode is unrecognized. Just skip unknown opcodes */ - - ACPI_ERROR((AE_INFO, - "Found unknown opcode %X at AML address %p offset %X, ignoring", - walk_state->opcode, walk_state->parser_state.aml, - walk_state->aml_offset)); - - ACPI_DUMP_BUFFER(walk_state->parser_state.aml, 128); - - /* Assume one-byte bad opcode */ - - walk_state->parser_state.aml++; - return_ACPI_STATUS(AE_CTRL_PARSE_CONTINUE); - - default: - - /* Found opcode info, this is a normal opcode */ - - walk_state->parser_state.aml += - acpi_ps_get_opcode_size(walk_state->opcode); - walk_state->arg_types = walk_state->op_info->parse_args; - break; - } - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_build_named_op - * - * PARAMETERS: walk_state - Current state - * aml_op_start - Begin of named Op in AML - * unnamed_op - Early Op (not a named Op) - * Op - Returned Op - * - * RETURN: Status - * - * DESCRIPTION: Parse a named Op - * - ******************************************************************************/ - -static acpi_status -acpi_ps_build_named_op(struct acpi_walk_state *walk_state, - u8 * aml_op_start, - union acpi_parse_object *unnamed_op, - union acpi_parse_object **op) -{ - acpi_status status = AE_OK; - union acpi_parse_object *arg = NULL; - - ACPI_FUNCTION_TRACE_PTR(ps_build_named_op, walk_state); - - unnamed_op->common.value.arg = NULL; - unnamed_op->common.arg_list_length = 0; - unnamed_op->common.aml_opcode = walk_state->opcode; - - /* - * Get and append arguments until we find the node that contains - * the name (the type ARGP_NAME). - */ - while (GET_CURRENT_ARG_TYPE(walk_state->arg_types) && - (GET_CURRENT_ARG_TYPE(walk_state->arg_types) != ARGP_NAME)) { - status = - acpi_ps_get_next_arg(walk_state, - &(walk_state->parser_state), - GET_CURRENT_ARG_TYPE(walk_state-> - arg_types), &arg); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - acpi_ps_append_arg(unnamed_op, arg); - INCREMENT_ARG_LIST(walk_state->arg_types); - } - - /* - * Make sure that we found a NAME and didn't run out of arguments - */ - if (!GET_CURRENT_ARG_TYPE(walk_state->arg_types)) { - return_ACPI_STATUS(AE_AML_NO_OPERAND); - } - - /* We know that this arg is a name, move to next arg */ - - INCREMENT_ARG_LIST(walk_state->arg_types); - - /* - * Find the object. This will either insert the object into - * the namespace or simply look it up - */ - walk_state->op = NULL; - - status = walk_state->descending_callback(walk_state, op); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, "During name lookup/catalog")); - return_ACPI_STATUS(status); - } - - if (!*op) { - return_ACPI_STATUS(AE_CTRL_PARSE_CONTINUE); - } - - status = acpi_ps_next_parse_state(walk_state, *op, status); - if (ACPI_FAILURE(status)) { - if (status == AE_CTRL_PENDING) { - return_ACPI_STATUS(AE_CTRL_PARSE_PENDING); - } - return_ACPI_STATUS(status); - } - - acpi_ps_append_arg(*op, unnamed_op->common.value.arg); - acpi_gbl_depth++; - - if ((*op)->common.aml_opcode == AML_REGION_OP || - (*op)->common.aml_opcode == AML_DATA_REGION_OP) { - /* - * Defer final parsing of an operation_region body, because we don't - * have enough info in the first pass to parse it correctly (i.e., - * there may be method calls within the term_arg elements of the body.) - * - * However, we must continue parsing because the opregion is not a - * standalone package -- we don't know where the end is at this point. - * - * (Length is unknown until parse of the body complete) - */ - (*op)->named.data = aml_op_start; - (*op)->named.length = 0; - } - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_create_op - * - * PARAMETERS: walk_state - Current state - * aml_op_start - Op start in AML - * new_op - Returned Op - * - * RETURN: Status - * - * DESCRIPTION: Get Op from AML - * - ******************************************************************************/ - -static acpi_status -acpi_ps_create_op(struct acpi_walk_state *walk_state, - u8 * aml_op_start, union acpi_parse_object **new_op) -{ - acpi_status status = AE_OK; - union acpi_parse_object *op; - union acpi_parse_object *named_op = NULL; - union acpi_parse_object *parent_scope; - u8 argument_count; - const struct acpi_opcode_info *op_info; - - ACPI_FUNCTION_TRACE_PTR(ps_create_op, walk_state); - - status = acpi_ps_get_aml_opcode(walk_state); - if (status == AE_CTRL_PARSE_CONTINUE) { - return_ACPI_STATUS(AE_CTRL_PARSE_CONTINUE); - } - - /* Create Op structure and append to parent's argument list */ - - walk_state->op_info = acpi_ps_get_opcode_info(walk_state->opcode); - op = acpi_ps_alloc_op(walk_state->opcode); - if (!op) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - if (walk_state->op_info->flags & AML_NAMED) { - status = - acpi_ps_build_named_op(walk_state, aml_op_start, op, - &named_op); - acpi_ps_free_op(op); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - *new_op = named_op; - return_ACPI_STATUS(AE_OK); - } - - /* Not a named opcode, just allocate Op and append to parent */ - - if (walk_state->op_info->flags & AML_CREATE) { - /* - * Backup to beginning of create_xXXfield declaration - * body_length is unknown until we parse the body - */ - op->named.data = aml_op_start; - op->named.length = 0; - } - - if (walk_state->opcode == AML_BANK_FIELD_OP) { - /* - * Backup to beginning of bank_field declaration - * body_length is unknown until we parse the body - */ - op->named.data = aml_op_start; - op->named.length = 0; - } - - parent_scope = acpi_ps_get_parent_scope(&(walk_state->parser_state)); - acpi_ps_append_arg(parent_scope, op); - - if (parent_scope) { - op_info = - acpi_ps_get_opcode_info(parent_scope->common.aml_opcode); - if (op_info->flags & AML_HAS_TARGET) { - argument_count = - acpi_ps_get_argument_count(op_info->type); - if (parent_scope->common.arg_list_length > - argument_count) { - op->common.flags |= ACPI_PARSEOP_TARGET; - } - } else if (parent_scope->common.aml_opcode == AML_INCREMENT_OP) { - op->common.flags |= ACPI_PARSEOP_TARGET; - } - } - - if (walk_state->descending_callback != NULL) { - /* - * Find the object. This will either insert the object into - * the namespace or simply look it up - */ - walk_state->op = *new_op = op; - - status = walk_state->descending_callback(walk_state, &op); - status = acpi_ps_next_parse_state(walk_state, op, status); - if (status == AE_CTRL_PENDING) { - status = AE_CTRL_PARSE_PENDING; - } - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_get_arguments - * - * PARAMETERS: walk_state - Current state - * aml_op_start - Op start in AML - * Op - Current Op - * - * RETURN: Status - * - * DESCRIPTION: Get arguments for passed Op. - * - ******************************************************************************/ - -static acpi_status -acpi_ps_get_arguments(struct acpi_walk_state *walk_state, - u8 * aml_op_start, union acpi_parse_object *op) -{ - acpi_status status = AE_OK; - union acpi_parse_object *arg = NULL; - - ACPI_FUNCTION_TRACE_PTR(ps_get_arguments, walk_state); - - switch (op->common.aml_opcode) { - case AML_BYTE_OP: /* AML_BYTEDATA_ARG */ - case AML_WORD_OP: /* AML_WORDDATA_ARG */ - case AML_DWORD_OP: /* AML_DWORDATA_ARG */ - case AML_QWORD_OP: /* AML_QWORDATA_ARG */ - case AML_STRING_OP: /* AML_ASCIICHARLIST_ARG */ - - /* Fill in constant or string argument directly */ - - acpi_ps_get_next_simple_arg(&(walk_state->parser_state), - GET_CURRENT_ARG_TYPE(walk_state-> - arg_types), - op); - break; - - case AML_INT_NAMEPATH_OP: /* AML_NAMESTRING_ARG */ - - status = - acpi_ps_get_next_namepath(walk_state, - &(walk_state->parser_state), op, - 1); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - walk_state->arg_types = 0; - break; - - default: - /* - * Op is not a constant or string, append each argument to the Op - */ - while (GET_CURRENT_ARG_TYPE(walk_state->arg_types) - && !walk_state->arg_count) { - walk_state->aml_offset = - (u32) ACPI_PTR_DIFF(walk_state->parser_state.aml, - walk_state->parser_state. - aml_start); - - status = - acpi_ps_get_next_arg(walk_state, - &(walk_state->parser_state), - GET_CURRENT_ARG_TYPE - (walk_state->arg_types), &arg); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - if (arg) { - arg->common.aml_offset = walk_state->aml_offset; - acpi_ps_append_arg(op, arg); - } - - INCREMENT_ARG_LIST(walk_state->arg_types); - } - - /* Special processing for certain opcodes */ - - /* TBD (remove): Temporary mechanism to disable this code if needed */ - -#ifdef ACPI_ENABLE_MODULE_LEVEL_CODE - - if ((walk_state->pass_number <= ACPI_IMODE_LOAD_PASS1) && - ((walk_state->parse_flags & ACPI_PARSE_DISASSEMBLE) == 0)) { - /* - * We want to skip If/Else/While constructs during Pass1 because we - * want to actually conditionally execute the code during Pass2. - * - * Except for disassembly, where we always want to walk the - * If/Else/While packages - */ - switch (op->common.aml_opcode) { - case AML_IF_OP: - case AML_ELSE_OP: - case AML_WHILE_OP: - - ACPI_DEBUG_PRINT((ACPI_DB_PARSE, - "Pass1: Skipping an If/Else/While body\n")); - - /* Skip body of if/else/while in pass 1 */ - - walk_state->parser_state.aml = - walk_state->parser_state.pkg_end; - walk_state->arg_count = 0; - break; - - default: - break; - } - } -#endif - - switch (op->common.aml_opcode) { - case AML_METHOD_OP: - /* - * Skip parsing of control method because we don't have enough - * info in the first pass to parse it correctly. - * - * Save the length and address of the body - */ - op->named.data = walk_state->parser_state.aml; - op->named.length = (u32) - (walk_state->parser_state.pkg_end - - walk_state->parser_state.aml); - - /* Skip body of method */ - - walk_state->parser_state.aml = - walk_state->parser_state.pkg_end; - walk_state->arg_count = 0; - break; - - case AML_BUFFER_OP: - case AML_PACKAGE_OP: - case AML_VAR_PACKAGE_OP: - - if ((op->common.parent) && - (op->common.parent->common.aml_opcode == - AML_NAME_OP) - && (walk_state->pass_number <= - ACPI_IMODE_LOAD_PASS2)) { - /* - * Skip parsing of Buffers and Packages because we don't have - * enough info in the first pass to parse them correctly. - */ - op->named.data = aml_op_start; - op->named.length = (u32) - (walk_state->parser_state.pkg_end - - aml_op_start); - - /* Skip body */ - - walk_state->parser_state.aml = - walk_state->parser_state.pkg_end; - walk_state->arg_count = 0; - } - break; - - case AML_WHILE_OP: - - if (walk_state->control_state) { - walk_state->control_state->control.package_end = - walk_state->parser_state.pkg_end; - } - break; - - default: - - /* No action for all other opcodes */ - break; - } - - break; - } - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_complete_op - * - * PARAMETERS: walk_state - Current state - * Op - Returned Op - * Status - Parse status before complete Op - * - * RETURN: Status - * - * DESCRIPTION: Complete Op - * - ******************************************************************************/ - -static acpi_status -acpi_ps_complete_op(struct acpi_walk_state *walk_state, - union acpi_parse_object **op, acpi_status status) -{ - acpi_status status2; - - ACPI_FUNCTION_TRACE_PTR(ps_complete_op, walk_state); - - /* - * Finished one argument of the containing scope - */ - walk_state->parser_state.scope->parse_scope.arg_count--; - - /* Close this Op (will result in parse subtree deletion) */ - - status2 = acpi_ps_complete_this_op(walk_state, *op); - if (ACPI_FAILURE(status2)) { - return_ACPI_STATUS(status2); - } - - *op = NULL; - - switch (status) { - case AE_OK: - break; - - case AE_CTRL_TRANSFER: - - /* We are about to transfer to a called method */ - - walk_state->prev_op = NULL; - walk_state->prev_arg_types = walk_state->arg_types; - return_ACPI_STATUS(status); - - case AE_CTRL_END: - - acpi_ps_pop_scope(&(walk_state->parser_state), op, - &walk_state->arg_types, - &walk_state->arg_count); - - if (*op) { - walk_state->op = *op; - walk_state->op_info = - acpi_ps_get_opcode_info((*op)->common.aml_opcode); - walk_state->opcode = (*op)->common.aml_opcode; - - status = walk_state->ascending_callback(walk_state); - status = - acpi_ps_next_parse_state(walk_state, *op, status); - - status2 = acpi_ps_complete_this_op(walk_state, *op); - if (ACPI_FAILURE(status2)) { - return_ACPI_STATUS(status2); - } - } - - status = AE_OK; - break; - - case AE_CTRL_BREAK: - case AE_CTRL_CONTINUE: - - /* Pop off scopes until we find the While */ - - while (!(*op) || ((*op)->common.aml_opcode != AML_WHILE_OP)) { - acpi_ps_pop_scope(&(walk_state->parser_state), op, - &walk_state->arg_types, - &walk_state->arg_count); - } - - /* Close this iteration of the While loop */ - - walk_state->op = *op; - walk_state->op_info = - acpi_ps_get_opcode_info((*op)->common.aml_opcode); - walk_state->opcode = (*op)->common.aml_opcode; - - status = walk_state->ascending_callback(walk_state); - status = acpi_ps_next_parse_state(walk_state, *op, status); - - status2 = acpi_ps_complete_this_op(walk_state, *op); - if (ACPI_FAILURE(status2)) { - return_ACPI_STATUS(status2); - } - - status = AE_OK; - break; - - case AE_CTRL_TERMINATE: - - /* Clean up */ - do { - if (*op) { - status2 = - acpi_ps_complete_this_op(walk_state, *op); - if (ACPI_FAILURE(status2)) { - return_ACPI_STATUS(status2); - } - - acpi_ut_delete_generic_state - (acpi_ut_pop_generic_state - (&walk_state->control_state)); - } - - acpi_ps_pop_scope(&(walk_state->parser_state), op, - &walk_state->arg_types, - &walk_state->arg_count); - - } while (*op); - - return_ACPI_STATUS(AE_OK); - - default: /* All other non-AE_OK status */ - - do { - if (*op) { - status2 = - acpi_ps_complete_this_op(walk_state, *op); - if (ACPI_FAILURE(status2)) { - return_ACPI_STATUS(status2); - } - } - - acpi_ps_pop_scope(&(walk_state->parser_state), op, - &walk_state->arg_types, - &walk_state->arg_count); - - } while (*op); - -#if 0 - /* - * TBD: Cleanup parse ops on error - */ - if (*op == NULL) { - acpi_ps_pop_scope(parser_state, op, - &walk_state->arg_types, - &walk_state->arg_count); - } -#endif - walk_state->prev_op = NULL; - walk_state->prev_arg_types = walk_state->arg_types; - return_ACPI_STATUS(status); - } - - /* This scope complete? */ - - if (acpi_ps_has_completed_scope(&(walk_state->parser_state))) { - acpi_ps_pop_scope(&(walk_state->parser_state), op, - &walk_state->arg_types, - &walk_state->arg_count); - ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "Popped scope, Op=%p\n", *op)); - } else { - *op = NULL; - } - - ACPI_PREEMPTION_POINT(); - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_complete_final_op - * - * PARAMETERS: walk_state - Current state - * Op - Current Op - * Status - Current parse status before complete last - * Op - * - * RETURN: Status - * - * DESCRIPTION: Complete last Op. - * - ******************************************************************************/ - -static acpi_status -acpi_ps_complete_final_op(struct acpi_walk_state *walk_state, - union acpi_parse_object *op, acpi_status status) -{ - acpi_status status2; - - ACPI_FUNCTION_TRACE_PTR(ps_complete_final_op, walk_state); - - /* - * Complete the last Op (if not completed), and clear the scope stack. - * It is easily possible to end an AML "package" with an unbounded number - * of open scopes (such as when several ASL blocks are closed with - * sequential closing braces). We want to terminate each one cleanly. - */ - ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "AML package complete at Op %p\n", - op)); - do { - if (op) { - if (walk_state->ascending_callback != NULL) { - walk_state->op = op; - walk_state->op_info = - acpi_ps_get_opcode_info(op->common. - aml_opcode); - walk_state->opcode = op->common.aml_opcode; - - status = - walk_state->ascending_callback(walk_state); - status = - acpi_ps_next_parse_state(walk_state, op, - status); - if (status == AE_CTRL_PENDING) { - status = - acpi_ps_complete_op(walk_state, &op, - AE_OK); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - - if (status == AE_CTRL_TERMINATE) { - status = AE_OK; - - /* Clean up */ - do { - if (op) { - status2 = - acpi_ps_complete_this_op - (walk_state, op); - if (ACPI_FAILURE - (status2)) { - return_ACPI_STATUS - (status2); - } - } - - acpi_ps_pop_scope(& - (walk_state-> - parser_state), - &op, - &walk_state-> - arg_types, - &walk_state-> - arg_count); - - } while (op); - - return_ACPI_STATUS(status); - } - - else if (ACPI_FAILURE(status)) { - - /* First error is most important */ - - (void) - acpi_ps_complete_this_op(walk_state, - op); - return_ACPI_STATUS(status); - } - } - - status2 = acpi_ps_complete_this_op(walk_state, op); - if (ACPI_FAILURE(status2)) { - return_ACPI_STATUS(status2); - } - } - - acpi_ps_pop_scope(&(walk_state->parser_state), &op, - &walk_state->arg_types, - &walk_state->arg_count); - - } while (op); - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_parse_loop - * - * PARAMETERS: walk_state - Current state - * - * RETURN: Status - * - * DESCRIPTION: Parse AML (pointed to by the current parser state) and return - * a tree of ops. - * - ******************************************************************************/ - -acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state) -{ - acpi_status status = AE_OK; - union acpi_parse_object *op = NULL; /* current op */ - struct acpi_parse_state *parser_state; - u8 *aml_op_start = NULL; - - ACPI_FUNCTION_TRACE_PTR(ps_parse_loop, walk_state); - - if (walk_state->descending_callback == NULL) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - parser_state = &walk_state->parser_state; - walk_state->arg_types = 0; - -#if (!defined (ACPI_NO_METHOD_EXECUTION) && !defined (ACPI_CONSTANT_EVAL_ONLY)) - - if (walk_state->walk_type & ACPI_WALK_METHOD_RESTART) { - - /* We are restarting a preempted control method */ - - if (acpi_ps_has_completed_scope(parser_state)) { - /* - * We must check if a predicate to an IF or WHILE statement - * was just completed - */ - if ((parser_state->scope->parse_scope.op) && - ((parser_state->scope->parse_scope.op->common. - aml_opcode == AML_IF_OP) - || (parser_state->scope->parse_scope.op->common. - aml_opcode == AML_WHILE_OP)) - && (walk_state->control_state) - && (walk_state->control_state->common.state == - ACPI_CONTROL_PREDICATE_EXECUTING)) { - /* - * A predicate was just completed, get the value of the - * predicate and branch based on that value - */ - walk_state->op = NULL; - status = - acpi_ds_get_predicate_value(walk_state, - ACPI_TO_POINTER - (TRUE)); - if (ACPI_FAILURE(status) - && ((status & AE_CODE_MASK) != - AE_CODE_CONTROL)) { - if (status == AE_AML_NO_RETURN_VALUE) { - ACPI_EXCEPTION((AE_INFO, status, - "Invoked method did not return a value")); - - } - - ACPI_EXCEPTION((AE_INFO, status, - "GetPredicate Failed")); - return_ACPI_STATUS(status); - } - - status = - acpi_ps_next_parse_state(walk_state, op, - status); - } - - acpi_ps_pop_scope(parser_state, &op, - &walk_state->arg_types, - &walk_state->arg_count); - ACPI_DEBUG_PRINT((ACPI_DB_PARSE, - "Popped scope, Op=%p\n", op)); - } else if (walk_state->prev_op) { - - /* We were in the middle of an op */ - - op = walk_state->prev_op; - walk_state->arg_types = walk_state->prev_arg_types; - } - } -#endif - - /* Iterative parsing loop, while there is more AML to process: */ - - while ((parser_state->aml < parser_state->aml_end) || (op)) { - aml_op_start = parser_state->aml; - if (!op) { - status = - acpi_ps_create_op(walk_state, aml_op_start, &op); - if (ACPI_FAILURE(status)) { - if (status == AE_CTRL_PARSE_CONTINUE) { - continue; - } - - if (status == AE_CTRL_PARSE_PENDING) { - status = AE_OK; - } - - status = - acpi_ps_complete_op(walk_state, &op, - status); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - continue; - } - - op->common.aml_offset = walk_state->aml_offset; - - if (walk_state->op_info) { - ACPI_DEBUG_PRINT((ACPI_DB_PARSE, - "Opcode %4.4X [%s] Op %p Aml %p AmlOffset %5.5X\n", - (u32) op->common.aml_opcode, - walk_state->op_info->name, op, - parser_state->aml, - op->common.aml_offset)); - } - } - - /* - * Start arg_count at zero because we don't know if there are - * any args yet - */ - walk_state->arg_count = 0; - - /* Are there any arguments that must be processed? */ - - if (walk_state->arg_types) { - - /* Get arguments */ - - status = - acpi_ps_get_arguments(walk_state, aml_op_start, op); - if (ACPI_FAILURE(status)) { - status = - acpi_ps_complete_op(walk_state, &op, - status); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - continue; - } - } - - /* Check for arguments that need to be processed */ - - if (walk_state->arg_count) { - /* - * There are arguments (complex ones), push Op and - * prepare for argument - */ - status = acpi_ps_push_scope(parser_state, op, - walk_state->arg_types, - walk_state->arg_count); - if (ACPI_FAILURE(status)) { - status = - acpi_ps_complete_op(walk_state, &op, - status); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - continue; - } - - op = NULL; - continue; - } - - /* - * All arguments have been processed -- Op is complete, - * prepare for next - */ - walk_state->op_info = - acpi_ps_get_opcode_info(op->common.aml_opcode); - if (walk_state->op_info->flags & AML_NAMED) { - if (acpi_gbl_depth) { - acpi_gbl_depth--; - } - - if (op->common.aml_opcode == AML_REGION_OP || - op->common.aml_opcode == AML_DATA_REGION_OP) { - /* - * Skip parsing of control method or opregion body, - * because we don't have enough info in the first pass - * to parse them correctly. - * - * Completed parsing an op_region declaration, we now - * know the length. - */ - op->named.length = - (u32) (parser_state->aml - op->named.data); - } - } - - if (walk_state->op_info->flags & AML_CREATE) { - /* - * Backup to beginning of create_xXXfield declaration (1 for - * Opcode) - * - * body_length is unknown until we parse the body - */ - op->named.length = - (u32) (parser_state->aml - op->named.data); - } - - if (op->common.aml_opcode == AML_BANK_FIELD_OP) { - /* - * Backup to beginning of bank_field declaration - * - * body_length is unknown until we parse the body - */ - op->named.length = - (u32) (parser_state->aml - op->named.data); - } - - /* This op complete, notify the dispatcher */ - - if (walk_state->ascending_callback != NULL) { - walk_state->op = op; - walk_state->opcode = op->common.aml_opcode; - - status = walk_state->ascending_callback(walk_state); - status = - acpi_ps_next_parse_state(walk_state, op, status); - if (status == AE_CTRL_PENDING) { - status = AE_OK; - } - } - - status = acpi_ps_complete_op(walk_state, &op, status); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - } /* while parser_state->Aml */ - - status = acpi_ps_complete_final_op(walk_state, op, status); - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/parser/psopcode.c b/drivers/acpi/parser/psopcode.c deleted file mode 100644 index 3693a121b347..000000000000 --- a/drivers/acpi/parser/psopcode.c +++ /dev/null @@ -1,810 +0,0 @@ -/****************************************************************************** - * - * Module Name: psopcode - Parser/Interpreter opcode information table - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_PARSER -ACPI_MODULE_NAME("psopcode") - -static const u8 acpi_gbl_argument_count[] = - { 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 6 }; - -/******************************************************************************* - * - * NAME: acpi_gbl_aml_op_info - * - * DESCRIPTION: Opcode table. Each entry contains - * The name is a simple ascii string, the operand specifier is an - * ascii string with one letter per operand. The letter specifies - * the operand type. - * - ******************************************************************************/ - -/* - * Summary of opcode types/flags - * - - Opcodes that have associated namespace objects (AML_NSOBJECT flag) - - AML_SCOPE_OP - AML_DEVICE_OP - AML_THERMAL_ZONE_OP - AML_METHOD_OP - AML_POWER_RES_OP - AML_PROCESSOR_OP - AML_FIELD_OP - AML_INDEX_FIELD_OP - AML_BANK_FIELD_OP - AML_NAME_OP - AML_ALIAS_OP - AML_MUTEX_OP - AML_EVENT_OP - AML_REGION_OP - AML_CREATE_FIELD_OP - AML_CREATE_BIT_FIELD_OP - AML_CREATE_BYTE_FIELD_OP - AML_CREATE_WORD_FIELD_OP - AML_CREATE_DWORD_FIELD_OP - AML_CREATE_QWORD_FIELD_OP - AML_INT_NAMEDFIELD_OP - AML_INT_METHODCALL_OP - AML_INT_NAMEPATH_OP - - Opcodes that are "namespace" opcodes (AML_NSOPCODE flag) - - AML_SCOPE_OP - AML_DEVICE_OP - AML_THERMAL_ZONE_OP - AML_METHOD_OP - AML_POWER_RES_OP - AML_PROCESSOR_OP - AML_FIELD_OP - AML_INDEX_FIELD_OP - AML_BANK_FIELD_OP - AML_NAME_OP - AML_ALIAS_OP - AML_MUTEX_OP - AML_EVENT_OP - AML_REGION_OP - AML_INT_NAMEDFIELD_OP - - Opcodes that have an associated namespace node (AML_NSNODE flag) - - AML_SCOPE_OP - AML_DEVICE_OP - AML_THERMAL_ZONE_OP - AML_METHOD_OP - AML_POWER_RES_OP - AML_PROCESSOR_OP - AML_NAME_OP - AML_ALIAS_OP - AML_MUTEX_OP - AML_EVENT_OP - AML_REGION_OP - AML_CREATE_FIELD_OP - AML_CREATE_BIT_FIELD_OP - AML_CREATE_BYTE_FIELD_OP - AML_CREATE_WORD_FIELD_OP - AML_CREATE_DWORD_FIELD_OP - AML_CREATE_QWORD_FIELD_OP - AML_INT_NAMEDFIELD_OP - AML_INT_METHODCALL_OP - AML_INT_NAMEPATH_OP - - Opcodes that define named ACPI objects (AML_NAMED flag) - - AML_SCOPE_OP - AML_DEVICE_OP - AML_THERMAL_ZONE_OP - AML_METHOD_OP - AML_POWER_RES_OP - AML_PROCESSOR_OP - AML_NAME_OP - AML_ALIAS_OP - AML_MUTEX_OP - AML_EVENT_OP - AML_REGION_OP - AML_INT_NAMEDFIELD_OP - - Opcodes that contain executable AML as part of the definition that - must be deferred until needed - - AML_METHOD_OP - AML_VAR_PACKAGE_OP - AML_CREATE_FIELD_OP - AML_CREATE_BIT_FIELD_OP - AML_CREATE_BYTE_FIELD_OP - AML_CREATE_WORD_FIELD_OP - AML_CREATE_DWORD_FIELD_OP - AML_CREATE_QWORD_FIELD_OP - AML_REGION_OP - AML_BUFFER_OP - - Field opcodes - - AML_CREATE_FIELD_OP - AML_FIELD_OP - AML_INDEX_FIELD_OP - AML_BANK_FIELD_OP - - Field "Create" opcodes - - AML_CREATE_FIELD_OP - AML_CREATE_BIT_FIELD_OP - AML_CREATE_BYTE_FIELD_OP - AML_CREATE_WORD_FIELD_OP - AML_CREATE_DWORD_FIELD_OP - AML_CREATE_QWORD_FIELD_OP - - ******************************************************************************/ - -/* - * Master Opcode information table. A summary of everything we know about each - * opcode, all in one place. - */ -const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES] = { -/*! [Begin] no source code translation */ -/* Index Name Parser Args Interpreter Args ObjectType Class Type Flags */ - -/* 00 */ ACPI_OP("Zero", ARGP_ZERO_OP, ARGI_ZERO_OP, ACPI_TYPE_INTEGER, - AML_CLASS_ARGUMENT, AML_TYPE_CONSTANT, AML_CONSTANT), -/* 01 */ ACPI_OP("One", ARGP_ONE_OP, ARGI_ONE_OP, ACPI_TYPE_INTEGER, - AML_CLASS_ARGUMENT, AML_TYPE_CONSTANT, AML_CONSTANT), -/* 02 */ ACPI_OP("Alias", ARGP_ALIAS_OP, ARGI_ALIAS_OP, - ACPI_TYPE_LOCAL_ALIAS, AML_CLASS_NAMED_OBJECT, - AML_TYPE_NAMED_SIMPLE, - AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | - AML_NSNODE | AML_NAMED), -/* 03 */ ACPI_OP("Name", ARGP_NAME_OP, ARGI_NAME_OP, ACPI_TYPE_ANY, - AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_COMPLEX, - AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | - AML_NSNODE | AML_NAMED), -/* 04 */ ACPI_OP("ByteConst", ARGP_BYTE_OP, ARGI_BYTE_OP, - ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT, - AML_TYPE_LITERAL, AML_CONSTANT), -/* 05 */ ACPI_OP("WordConst", ARGP_WORD_OP, ARGI_WORD_OP, - ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT, - AML_TYPE_LITERAL, AML_CONSTANT), -/* 06 */ ACPI_OP("DwordConst", ARGP_DWORD_OP, ARGI_DWORD_OP, - ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT, - AML_TYPE_LITERAL, AML_CONSTANT), -/* 07 */ ACPI_OP("String", ARGP_STRING_OP, ARGI_STRING_OP, - ACPI_TYPE_STRING, AML_CLASS_ARGUMENT, - AML_TYPE_LITERAL, AML_CONSTANT), -/* 08 */ ACPI_OP("Scope", ARGP_SCOPE_OP, ARGI_SCOPE_OP, - ACPI_TYPE_LOCAL_SCOPE, AML_CLASS_NAMED_OBJECT, - AML_TYPE_NAMED_NO_OBJ, - AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | - AML_NSNODE | AML_NAMED), -/* 09 */ ACPI_OP("Buffer", ARGP_BUFFER_OP, ARGI_BUFFER_OP, - ACPI_TYPE_BUFFER, AML_CLASS_CREATE, - AML_TYPE_CREATE_OBJECT, - AML_HAS_ARGS | AML_DEFER | AML_CONSTANT), -/* 0A */ ACPI_OP("Package", ARGP_PACKAGE_OP, ARGI_PACKAGE_OP, - ACPI_TYPE_PACKAGE, AML_CLASS_CREATE, - AML_TYPE_CREATE_OBJECT, - AML_HAS_ARGS | AML_DEFER | AML_CONSTANT), -/* 0B */ ACPI_OP("Method", ARGP_METHOD_OP, ARGI_METHOD_OP, - ACPI_TYPE_METHOD, AML_CLASS_NAMED_OBJECT, - AML_TYPE_NAMED_COMPLEX, - AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | - AML_NSNODE | AML_NAMED | AML_DEFER), -/* 0C */ ACPI_OP("Local0", ARGP_LOCAL0, ARGI_LOCAL0, - ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, - AML_TYPE_LOCAL_VARIABLE, 0), -/* 0D */ ACPI_OP("Local1", ARGP_LOCAL1, ARGI_LOCAL1, - ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, - AML_TYPE_LOCAL_VARIABLE, 0), -/* 0E */ ACPI_OP("Local2", ARGP_LOCAL2, ARGI_LOCAL2, - ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, - AML_TYPE_LOCAL_VARIABLE, 0), -/* 0F */ ACPI_OP("Local3", ARGP_LOCAL3, ARGI_LOCAL3, - ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, - AML_TYPE_LOCAL_VARIABLE, 0), -/* 10 */ ACPI_OP("Local4", ARGP_LOCAL4, ARGI_LOCAL4, - ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, - AML_TYPE_LOCAL_VARIABLE, 0), -/* 11 */ ACPI_OP("Local5", ARGP_LOCAL5, ARGI_LOCAL5, - ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, - AML_TYPE_LOCAL_VARIABLE, 0), -/* 12 */ ACPI_OP("Local6", ARGP_LOCAL6, ARGI_LOCAL6, - ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, - AML_TYPE_LOCAL_VARIABLE, 0), -/* 13 */ ACPI_OP("Local7", ARGP_LOCAL7, ARGI_LOCAL7, - ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, - AML_TYPE_LOCAL_VARIABLE, 0), -/* 14 */ ACPI_OP("Arg0", ARGP_ARG0, ARGI_ARG0, - ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, - AML_TYPE_METHOD_ARGUMENT, 0), -/* 15 */ ACPI_OP("Arg1", ARGP_ARG1, ARGI_ARG1, - ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, - AML_TYPE_METHOD_ARGUMENT, 0), -/* 16 */ ACPI_OP("Arg2", ARGP_ARG2, ARGI_ARG2, - ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, - AML_TYPE_METHOD_ARGUMENT, 0), -/* 17 */ ACPI_OP("Arg3", ARGP_ARG3, ARGI_ARG3, - ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, - AML_TYPE_METHOD_ARGUMENT, 0), -/* 18 */ ACPI_OP("Arg4", ARGP_ARG4, ARGI_ARG4, - ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, - AML_TYPE_METHOD_ARGUMENT, 0), -/* 19 */ ACPI_OP("Arg5", ARGP_ARG5, ARGI_ARG5, - ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, - AML_TYPE_METHOD_ARGUMENT, 0), -/* 1A */ ACPI_OP("Arg6", ARGP_ARG6, ARGI_ARG6, - ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, - AML_TYPE_METHOD_ARGUMENT, 0), -/* 1B */ ACPI_OP("Store", ARGP_STORE_OP, ARGI_STORE_OP, ACPI_TYPE_ANY, - AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R, - AML_FLAGS_EXEC_1A_1T_1R), -/* 1C */ ACPI_OP("RefOf", ARGP_REF_OF_OP, ARGI_REF_OF_OP, ACPI_TYPE_ANY, - AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_1R, - AML_FLAGS_EXEC_1A_0T_1R), -/* 1D */ ACPI_OP("Add", ARGP_ADD_OP, ARGI_ADD_OP, ACPI_TYPE_ANY, - AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R, - AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT), -/* 1E */ ACPI_OP("Concatenate", ARGP_CONCAT_OP, ARGI_CONCAT_OP, - ACPI_TYPE_ANY, AML_CLASS_EXECUTE, - AML_TYPE_EXEC_2A_1T_1R, - AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT), -/* 1F */ ACPI_OP("Subtract", ARGP_SUBTRACT_OP, ARGI_SUBTRACT_OP, - ACPI_TYPE_ANY, AML_CLASS_EXECUTE, - AML_TYPE_EXEC_2A_1T_1R, - AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT), -/* 20 */ ACPI_OP("Increment", ARGP_INCREMENT_OP, ARGI_INCREMENT_OP, - ACPI_TYPE_ANY, AML_CLASS_EXECUTE, - AML_TYPE_EXEC_1A_0T_1R, - AML_FLAGS_EXEC_1A_0T_1R | AML_CONSTANT), -/* 21 */ ACPI_OP("Decrement", ARGP_DECREMENT_OP, ARGI_DECREMENT_OP, - ACPI_TYPE_ANY, AML_CLASS_EXECUTE, - AML_TYPE_EXEC_1A_0T_1R, - AML_FLAGS_EXEC_1A_0T_1R | AML_CONSTANT), -/* 22 */ ACPI_OP("Multiply", ARGP_MULTIPLY_OP, ARGI_MULTIPLY_OP, - ACPI_TYPE_ANY, AML_CLASS_EXECUTE, - AML_TYPE_EXEC_2A_1T_1R, - AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT), -/* 23 */ ACPI_OP("Divide", ARGP_DIVIDE_OP, ARGI_DIVIDE_OP, - ACPI_TYPE_ANY, AML_CLASS_EXECUTE, - AML_TYPE_EXEC_2A_2T_1R, - AML_FLAGS_EXEC_2A_2T_1R | AML_CONSTANT), -/* 24 */ ACPI_OP("ShiftLeft", ARGP_SHIFT_LEFT_OP, ARGI_SHIFT_LEFT_OP, - ACPI_TYPE_ANY, AML_CLASS_EXECUTE, - AML_TYPE_EXEC_2A_1T_1R, - AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT), -/* 25 */ ACPI_OP("ShiftRight", ARGP_SHIFT_RIGHT_OP, ARGI_SHIFT_RIGHT_OP, - ACPI_TYPE_ANY, AML_CLASS_EXECUTE, - AML_TYPE_EXEC_2A_1T_1R, - AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT), -/* 26 */ ACPI_OP("And", ARGP_BIT_AND_OP, ARGI_BIT_AND_OP, ACPI_TYPE_ANY, - AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R, - AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT), -/* 27 */ ACPI_OP("NAnd", ARGP_BIT_NAND_OP, ARGI_BIT_NAND_OP, - ACPI_TYPE_ANY, AML_CLASS_EXECUTE, - AML_TYPE_EXEC_2A_1T_1R, - AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT), -/* 28 */ ACPI_OP("Or", ARGP_BIT_OR_OP, ARGI_BIT_OR_OP, ACPI_TYPE_ANY, - AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R, - AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT), -/* 29 */ ACPI_OP("NOr", ARGP_BIT_NOR_OP, ARGI_BIT_NOR_OP, ACPI_TYPE_ANY, - AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R, - AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT), -/* 2A */ ACPI_OP("XOr", ARGP_BIT_XOR_OP, ARGI_BIT_XOR_OP, ACPI_TYPE_ANY, - AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R, - AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT), -/* 2B */ ACPI_OP("Not", ARGP_BIT_NOT_OP, ARGI_BIT_NOT_OP, ACPI_TYPE_ANY, - AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R, - AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT), -/* 2C */ ACPI_OP("FindSetLeftBit", ARGP_FIND_SET_LEFT_BIT_OP, - ARGI_FIND_SET_LEFT_BIT_OP, ACPI_TYPE_ANY, - AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R, - AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT), -/* 2D */ ACPI_OP("FindSetRightBit", ARGP_FIND_SET_RIGHT_BIT_OP, - ARGI_FIND_SET_RIGHT_BIT_OP, ACPI_TYPE_ANY, - AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R, - AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT), -/* 2E */ ACPI_OP("DerefOf", ARGP_DEREF_OF_OP, ARGI_DEREF_OF_OP, - ACPI_TYPE_ANY, AML_CLASS_EXECUTE, - AML_TYPE_EXEC_1A_0T_1R, AML_FLAGS_EXEC_1A_0T_1R), -/* 2F */ ACPI_OP("Notify", ARGP_NOTIFY_OP, ARGI_NOTIFY_OP, - ACPI_TYPE_ANY, AML_CLASS_EXECUTE, - AML_TYPE_EXEC_2A_0T_0R, AML_FLAGS_EXEC_2A_0T_0R), -/* 30 */ ACPI_OP("SizeOf", ARGP_SIZE_OF_OP, ARGI_SIZE_OF_OP, - ACPI_TYPE_ANY, AML_CLASS_EXECUTE, - AML_TYPE_EXEC_1A_0T_1R, - AML_FLAGS_EXEC_1A_0T_1R | AML_NO_OPERAND_RESOLVE), -/* 31 */ ACPI_OP("Index", ARGP_INDEX_OP, ARGI_INDEX_OP, ACPI_TYPE_ANY, - AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R, - AML_FLAGS_EXEC_2A_1T_1R), -/* 32 */ ACPI_OP("Match", ARGP_MATCH_OP, ARGI_MATCH_OP, ACPI_TYPE_ANY, - AML_CLASS_EXECUTE, AML_TYPE_EXEC_6A_0T_1R, - AML_FLAGS_EXEC_6A_0T_1R | AML_CONSTANT), -/* 33 */ ACPI_OP("CreateDWordField", ARGP_CREATE_DWORD_FIELD_OP, - ARGI_CREATE_DWORD_FIELD_OP, - ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE, - AML_TYPE_CREATE_FIELD, - AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE | - AML_DEFER | AML_CREATE), -/* 34 */ ACPI_OP("CreateWordField", ARGP_CREATE_WORD_FIELD_OP, - ARGI_CREATE_WORD_FIELD_OP, - ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE, - AML_TYPE_CREATE_FIELD, - AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE | - AML_DEFER | AML_CREATE), -/* 35 */ ACPI_OP("CreateByteField", ARGP_CREATE_BYTE_FIELD_OP, - ARGI_CREATE_BYTE_FIELD_OP, - ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE, - AML_TYPE_CREATE_FIELD, - AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE | - AML_DEFER | AML_CREATE), -/* 36 */ ACPI_OP("CreateBitField", ARGP_CREATE_BIT_FIELD_OP, - ARGI_CREATE_BIT_FIELD_OP, - ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE, - AML_TYPE_CREATE_FIELD, - AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE | - AML_DEFER | AML_CREATE), -/* 37 */ ACPI_OP("ObjectType", ARGP_TYPE_OP, ARGI_TYPE_OP, - ACPI_TYPE_ANY, AML_CLASS_EXECUTE, - AML_TYPE_EXEC_1A_0T_1R, - AML_FLAGS_EXEC_1A_0T_1R | AML_NO_OPERAND_RESOLVE), -/* 38 */ ACPI_OP("LAnd", ARGP_LAND_OP, ARGI_LAND_OP, ACPI_TYPE_ANY, - AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R, - AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL_NUMERIC | AML_CONSTANT), -/* 39 */ ACPI_OP("LOr", ARGP_LOR_OP, ARGI_LOR_OP, ACPI_TYPE_ANY, - AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R, - AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL_NUMERIC | AML_CONSTANT), -/* 3A */ ACPI_OP("LNot", ARGP_LNOT_OP, ARGI_LNOT_OP, ACPI_TYPE_ANY, - AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_1R, - AML_FLAGS_EXEC_1A_0T_1R | AML_CONSTANT), -/* 3B */ ACPI_OP("LEqual", ARGP_LEQUAL_OP, ARGI_LEQUAL_OP, - ACPI_TYPE_ANY, AML_CLASS_EXECUTE, - AML_TYPE_EXEC_2A_0T_1R, - AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL | AML_CONSTANT), -/* 3C */ ACPI_OP("LGreater", ARGP_LGREATER_OP, ARGI_LGREATER_OP, - ACPI_TYPE_ANY, AML_CLASS_EXECUTE, - AML_TYPE_EXEC_2A_0T_1R, - AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL | AML_CONSTANT), -/* 3D */ ACPI_OP("LLess", ARGP_LLESS_OP, ARGI_LLESS_OP, ACPI_TYPE_ANY, - AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R, - AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL | AML_CONSTANT), -/* 3E */ ACPI_OP("If", ARGP_IF_OP, ARGI_IF_OP, ACPI_TYPE_ANY, - AML_CLASS_CONTROL, AML_TYPE_CONTROL, AML_HAS_ARGS), -/* 3F */ ACPI_OP("Else", ARGP_ELSE_OP, ARGI_ELSE_OP, ACPI_TYPE_ANY, - AML_CLASS_CONTROL, AML_TYPE_CONTROL, AML_HAS_ARGS), -/* 40 */ ACPI_OP("While", ARGP_WHILE_OP, ARGI_WHILE_OP, ACPI_TYPE_ANY, - AML_CLASS_CONTROL, AML_TYPE_CONTROL, AML_HAS_ARGS), -/* 41 */ ACPI_OP("Noop", ARGP_NOOP_OP, ARGI_NOOP_OP, ACPI_TYPE_ANY, - AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0), -/* 42 */ ACPI_OP("Return", ARGP_RETURN_OP, ARGI_RETURN_OP, - ACPI_TYPE_ANY, AML_CLASS_CONTROL, - AML_TYPE_CONTROL, AML_HAS_ARGS), -/* 43 */ ACPI_OP("Break", ARGP_BREAK_OP, ARGI_BREAK_OP, ACPI_TYPE_ANY, - AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0), -/* 44 */ ACPI_OP("BreakPoint", ARGP_BREAK_POINT_OP, ARGI_BREAK_POINT_OP, - ACPI_TYPE_ANY, AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0), -/* 45 */ ACPI_OP("Ones", ARGP_ONES_OP, ARGI_ONES_OP, ACPI_TYPE_INTEGER, - AML_CLASS_ARGUMENT, AML_TYPE_CONSTANT, AML_CONSTANT), - -/* Prefixed opcodes (Two-byte opcodes with a prefix op) */ - -/* 46 */ ACPI_OP("Mutex", ARGP_MUTEX_OP, ARGI_MUTEX_OP, ACPI_TYPE_MUTEX, - AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_SIMPLE, - AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | - AML_NSNODE | AML_NAMED), -/* 47 */ ACPI_OP("Event", ARGP_EVENT_OP, ARGI_EVENT_OP, ACPI_TYPE_EVENT, - AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_SIMPLE, - AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE | AML_NAMED), -/* 48 */ ACPI_OP("CondRefOf", ARGP_COND_REF_OF_OP, ARGI_COND_REF_OF_OP, - ACPI_TYPE_ANY, AML_CLASS_EXECUTE, - AML_TYPE_EXEC_1A_1T_1R, AML_FLAGS_EXEC_1A_1T_1R), -/* 49 */ ACPI_OP("CreateField", ARGP_CREATE_FIELD_OP, - ARGI_CREATE_FIELD_OP, ACPI_TYPE_BUFFER_FIELD, - AML_CLASS_CREATE, AML_TYPE_CREATE_FIELD, - AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE | - AML_DEFER | AML_FIELD | AML_CREATE), -/* 4A */ ACPI_OP("Load", ARGP_LOAD_OP, ARGI_LOAD_OP, ACPI_TYPE_ANY, - AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_0R, - AML_FLAGS_EXEC_1A_1T_0R), -/* 4B */ ACPI_OP("Stall", ARGP_STALL_OP, ARGI_STALL_OP, ACPI_TYPE_ANY, - AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_0R, - AML_FLAGS_EXEC_1A_0T_0R), -/* 4C */ ACPI_OP("Sleep", ARGP_SLEEP_OP, ARGI_SLEEP_OP, ACPI_TYPE_ANY, - AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_0R, - AML_FLAGS_EXEC_1A_0T_0R), -/* 4D */ ACPI_OP("Acquire", ARGP_ACQUIRE_OP, ARGI_ACQUIRE_OP, - ACPI_TYPE_ANY, AML_CLASS_EXECUTE, - AML_TYPE_EXEC_2A_0T_1R, AML_FLAGS_EXEC_2A_0T_1R), -/* 4E */ ACPI_OP("Signal", ARGP_SIGNAL_OP, ARGI_SIGNAL_OP, - ACPI_TYPE_ANY, AML_CLASS_EXECUTE, - AML_TYPE_EXEC_1A_0T_0R, AML_FLAGS_EXEC_1A_0T_0R), -/* 4F */ ACPI_OP("Wait", ARGP_WAIT_OP, ARGI_WAIT_OP, ACPI_TYPE_ANY, - AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R, - AML_FLAGS_EXEC_2A_0T_1R), -/* 50 */ ACPI_OP("Reset", ARGP_RESET_OP, ARGI_RESET_OP, ACPI_TYPE_ANY, - AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_0R, - AML_FLAGS_EXEC_1A_0T_0R), -/* 51 */ ACPI_OP("Release", ARGP_RELEASE_OP, ARGI_RELEASE_OP, - ACPI_TYPE_ANY, AML_CLASS_EXECUTE, - AML_TYPE_EXEC_1A_0T_0R, AML_FLAGS_EXEC_1A_0T_0R), -/* 52 */ ACPI_OP("FromBCD", ARGP_FROM_BCD_OP, ARGI_FROM_BCD_OP, - ACPI_TYPE_ANY, AML_CLASS_EXECUTE, - AML_TYPE_EXEC_1A_1T_1R, - AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT), -/* 53 */ ACPI_OP("ToBCD", ARGP_TO_BCD_OP, ARGI_TO_BCD_OP, ACPI_TYPE_ANY, - AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R, - AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT), -/* 54 */ ACPI_OP("Unload", ARGP_UNLOAD_OP, ARGI_UNLOAD_OP, - ACPI_TYPE_ANY, AML_CLASS_EXECUTE, - AML_TYPE_EXEC_1A_0T_0R, AML_FLAGS_EXEC_1A_0T_0R), -/* 55 */ ACPI_OP("Revision", ARGP_REVISION_OP, ARGI_REVISION_OP, - ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT, - AML_TYPE_CONSTANT, 0), -/* 56 */ ACPI_OP("Debug", ARGP_DEBUG_OP, ARGI_DEBUG_OP, - ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, - AML_TYPE_CONSTANT, 0), -/* 57 */ ACPI_OP("Fatal", ARGP_FATAL_OP, ARGI_FATAL_OP, ACPI_TYPE_ANY, - AML_CLASS_EXECUTE, AML_TYPE_EXEC_3A_0T_0R, - AML_FLAGS_EXEC_3A_0T_0R), -/* 58 */ ACPI_OP("OperationRegion", ARGP_REGION_OP, ARGI_REGION_OP, - ACPI_TYPE_REGION, AML_CLASS_NAMED_OBJECT, - AML_TYPE_NAMED_COMPLEX, - AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | - AML_NSNODE | AML_NAMED | AML_DEFER), -/* 59 */ ACPI_OP("Field", ARGP_FIELD_OP, ARGI_FIELD_OP, ACPI_TYPE_ANY, - AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_FIELD, - AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_FIELD), -/* 5A */ ACPI_OP("Device", ARGP_DEVICE_OP, ARGI_DEVICE_OP, - ACPI_TYPE_DEVICE, AML_CLASS_NAMED_OBJECT, - AML_TYPE_NAMED_NO_OBJ, - AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | - AML_NSNODE | AML_NAMED), -/* 5B */ ACPI_OP("Processor", ARGP_PROCESSOR_OP, ARGI_PROCESSOR_OP, - ACPI_TYPE_PROCESSOR, AML_CLASS_NAMED_OBJECT, - AML_TYPE_NAMED_SIMPLE, - AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | - AML_NSNODE | AML_NAMED), -/* 5C */ ACPI_OP("PowerResource", ARGP_POWER_RES_OP, ARGI_POWER_RES_OP, - ACPI_TYPE_POWER, AML_CLASS_NAMED_OBJECT, - AML_TYPE_NAMED_SIMPLE, - AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | - AML_NSNODE | AML_NAMED), -/* 5D */ ACPI_OP("ThermalZone", ARGP_THERMAL_ZONE_OP, - ARGI_THERMAL_ZONE_OP, ACPI_TYPE_THERMAL, - AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_NO_OBJ, - AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | - AML_NSNODE | AML_NAMED), -/* 5E */ ACPI_OP("IndexField", ARGP_INDEX_FIELD_OP, ARGI_INDEX_FIELD_OP, - ACPI_TYPE_ANY, AML_CLASS_NAMED_OBJECT, - AML_TYPE_NAMED_FIELD, - AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_FIELD), -/* 5F */ ACPI_OP("BankField", ARGP_BANK_FIELD_OP, ARGI_BANK_FIELD_OP, - ACPI_TYPE_LOCAL_BANK_FIELD, AML_CLASS_NAMED_OBJECT, - AML_TYPE_NAMED_FIELD, - AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_FIELD | - AML_DEFER), - -/* Internal opcodes that map to invalid AML opcodes */ - -/* 60 */ ACPI_OP("LNotEqual", ARGP_LNOTEQUAL_OP, ARGI_LNOTEQUAL_OP, - ACPI_TYPE_ANY, AML_CLASS_INTERNAL, - AML_TYPE_BOGUS, AML_HAS_ARGS | AML_CONSTANT), -/* 61 */ ACPI_OP("LLessEqual", ARGP_LLESSEQUAL_OP, ARGI_LLESSEQUAL_OP, - ACPI_TYPE_ANY, AML_CLASS_INTERNAL, - AML_TYPE_BOGUS, AML_HAS_ARGS | AML_CONSTANT), -/* 62 */ ACPI_OP("LGreaterEqual", ARGP_LGREATEREQUAL_OP, - ARGI_LGREATEREQUAL_OP, ACPI_TYPE_ANY, - AML_CLASS_INTERNAL, AML_TYPE_BOGUS, - AML_HAS_ARGS | AML_CONSTANT), -/* 63 */ ACPI_OP("-NamePath-", ARGP_NAMEPATH_OP, ARGI_NAMEPATH_OP, - ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT, - AML_TYPE_LITERAL, AML_NSOBJECT | AML_NSNODE), -/* 64 */ ACPI_OP("-MethodCall-", ARGP_METHODCALL_OP, ARGI_METHODCALL_OP, - ACPI_TYPE_METHOD, AML_CLASS_METHOD_CALL, - AML_TYPE_METHOD_CALL, - AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE), -/* 65 */ ACPI_OP("-ByteList-", ARGP_BYTELIST_OP, ARGI_BYTELIST_OP, - ACPI_TYPE_ANY, AML_CLASS_ARGUMENT, - AML_TYPE_LITERAL, 0), -/* 66 */ ACPI_OP("-ReservedField-", ARGP_RESERVEDFIELD_OP, - ARGI_RESERVEDFIELD_OP, ACPI_TYPE_ANY, - AML_CLASS_INTERNAL, AML_TYPE_BOGUS, 0), -/* 67 */ ACPI_OP("-NamedField-", ARGP_NAMEDFIELD_OP, ARGI_NAMEDFIELD_OP, - ACPI_TYPE_ANY, AML_CLASS_INTERNAL, - AML_TYPE_BOGUS, - AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE | AML_NAMED), -/* 68 */ ACPI_OP("-AccessField-", ARGP_ACCESSFIELD_OP, - ARGI_ACCESSFIELD_OP, ACPI_TYPE_ANY, - AML_CLASS_INTERNAL, AML_TYPE_BOGUS, 0), -/* 69 */ ACPI_OP("-StaticString", ARGP_STATICSTRING_OP, - ARGI_STATICSTRING_OP, ACPI_TYPE_ANY, - AML_CLASS_INTERNAL, AML_TYPE_BOGUS, 0), -/* 6A */ ACPI_OP("-Return Value-", ARG_NONE, ARG_NONE, ACPI_TYPE_ANY, - AML_CLASS_RETURN_VALUE, AML_TYPE_RETURN, - AML_HAS_ARGS | AML_HAS_RETVAL), -/* 6B */ ACPI_OP("-UNKNOWN_OP-", ARG_NONE, ARG_NONE, ACPI_TYPE_INVALID, - AML_CLASS_UNKNOWN, AML_TYPE_BOGUS, AML_HAS_ARGS), -/* 6C */ ACPI_OP("-ASCII_ONLY-", ARG_NONE, ARG_NONE, ACPI_TYPE_ANY, - AML_CLASS_ASCII, AML_TYPE_BOGUS, AML_HAS_ARGS), -/* 6D */ ACPI_OP("-PREFIX_ONLY-", ARG_NONE, ARG_NONE, ACPI_TYPE_ANY, - AML_CLASS_PREFIX, AML_TYPE_BOGUS, AML_HAS_ARGS), - -/* ACPI 2.0 opcodes */ - -/* 6E */ ACPI_OP("QwordConst", ARGP_QWORD_OP, ARGI_QWORD_OP, - ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT, - AML_TYPE_LITERAL, AML_CONSTANT), - /* 6F */ ACPI_OP("Package", /* Var */ ARGP_VAR_PACKAGE_OP, - ARGI_VAR_PACKAGE_OP, ACPI_TYPE_PACKAGE, - AML_CLASS_CREATE, AML_TYPE_CREATE_OBJECT, - AML_HAS_ARGS | AML_DEFER), -/* 70 */ ACPI_OP("ConcatenateResTemplate", ARGP_CONCAT_RES_OP, - ARGI_CONCAT_RES_OP, ACPI_TYPE_ANY, - AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R, - AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT), -/* 71 */ ACPI_OP("Mod", ARGP_MOD_OP, ARGI_MOD_OP, ACPI_TYPE_ANY, - AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R, - AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT), -/* 72 */ ACPI_OP("CreateQWordField", ARGP_CREATE_QWORD_FIELD_OP, - ARGI_CREATE_QWORD_FIELD_OP, - ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE, - AML_TYPE_CREATE_FIELD, - AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE | - AML_DEFER | AML_CREATE), -/* 73 */ ACPI_OP("ToBuffer", ARGP_TO_BUFFER_OP, ARGI_TO_BUFFER_OP, - ACPI_TYPE_ANY, AML_CLASS_EXECUTE, - AML_TYPE_EXEC_1A_1T_1R, - AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT), -/* 74 */ ACPI_OP("ToDecimalString", ARGP_TO_DEC_STR_OP, - ARGI_TO_DEC_STR_OP, ACPI_TYPE_ANY, - AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R, - AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT), -/* 75 */ ACPI_OP("ToHexString", ARGP_TO_HEX_STR_OP, ARGI_TO_HEX_STR_OP, - ACPI_TYPE_ANY, AML_CLASS_EXECUTE, - AML_TYPE_EXEC_1A_1T_1R, - AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT), -/* 76 */ ACPI_OP("ToInteger", ARGP_TO_INTEGER_OP, ARGI_TO_INTEGER_OP, - ACPI_TYPE_ANY, AML_CLASS_EXECUTE, - AML_TYPE_EXEC_1A_1T_1R, - AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT), -/* 77 */ ACPI_OP("ToString", ARGP_TO_STRING_OP, ARGI_TO_STRING_OP, - ACPI_TYPE_ANY, AML_CLASS_EXECUTE, - AML_TYPE_EXEC_2A_1T_1R, - AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT), -/* 78 */ ACPI_OP("CopyObject", ARGP_COPY_OP, ARGI_COPY_OP, - ACPI_TYPE_ANY, AML_CLASS_EXECUTE, - AML_TYPE_EXEC_1A_1T_1R, AML_FLAGS_EXEC_1A_1T_1R), -/* 79 */ ACPI_OP("Mid", ARGP_MID_OP, ARGI_MID_OP, ACPI_TYPE_ANY, - AML_CLASS_EXECUTE, AML_TYPE_EXEC_3A_1T_1R, - AML_FLAGS_EXEC_3A_1T_1R | AML_CONSTANT), -/* 7A */ ACPI_OP("Continue", ARGP_CONTINUE_OP, ARGI_CONTINUE_OP, - ACPI_TYPE_ANY, AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0), -/* 7B */ ACPI_OP("LoadTable", ARGP_LOAD_TABLE_OP, ARGI_LOAD_TABLE_OP, - ACPI_TYPE_ANY, AML_CLASS_EXECUTE, - AML_TYPE_EXEC_6A_0T_1R, AML_FLAGS_EXEC_6A_0T_1R), -/* 7C */ ACPI_OP("DataTableRegion", ARGP_DATA_REGION_OP, - ARGI_DATA_REGION_OP, ACPI_TYPE_REGION, - AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_COMPLEX, - AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | - AML_NSNODE | AML_NAMED | AML_DEFER), -/* 7D */ ACPI_OP("[EvalSubTree]", ARGP_SCOPE_OP, ARGI_SCOPE_OP, - ACPI_TYPE_ANY, AML_CLASS_NAMED_OBJECT, - AML_TYPE_NAMED_NO_OBJ, - AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE), - -/* ACPI 3.0 opcodes */ - -/* 7E */ ACPI_OP("Timer", ARGP_TIMER_OP, ARGI_TIMER_OP, ACPI_TYPE_ANY, - AML_CLASS_EXECUTE, AML_TYPE_EXEC_0A_0T_1R, - AML_FLAGS_EXEC_0A_0T_1R) - -/*! [End] no source code translation !*/ -}; - -/* - * This table is directly indexed by the opcodes, and returns an - * index into the table above - */ -static const u8 acpi_gbl_short_op_index[256] = { -/* 0 1 2 3 4 5 6 7 */ -/* 8 9 A B C D E F */ -/* 0x00 */ 0x00, 0x01, _UNK, _UNK, _UNK, _UNK, 0x02, _UNK, -/* 0x08 */ 0x03, _UNK, 0x04, 0x05, 0x06, 0x07, 0x6E, _UNK, -/* 0x10 */ 0x08, 0x09, 0x0a, 0x6F, 0x0b, _UNK, _UNK, _UNK, -/* 0x18 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, -/* 0x20 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, -/* 0x28 */ _UNK, _UNK, _UNK, _UNK, _UNK, 0x63, _PFX, _PFX, -/* 0x30 */ 0x67, 0x66, 0x68, 0x65, 0x69, 0x64, 0x6A, 0x7D, -/* 0x38 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, -/* 0x40 */ _UNK, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, -/* 0x48 */ _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, -/* 0x50 */ _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, -/* 0x58 */ _ASC, _ASC, _ASC, _UNK, _PFX, _UNK, _PFX, _ASC, -/* 0x60 */ 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, -/* 0x68 */ 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, _UNK, -/* 0x70 */ 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, -/* 0x78 */ 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, -/* 0x80 */ 0x2b, 0x2c, 0x2d, 0x2e, 0x70, 0x71, 0x2f, 0x30, -/* 0x88 */ 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x72, -/* 0x90 */ 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x73, 0x74, -/* 0x98 */ 0x75, 0x76, _UNK, _UNK, 0x77, 0x78, 0x79, 0x7A, -/* 0xA0 */ 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x60, 0x61, -/* 0xA8 */ 0x62, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, -/* 0xB0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, -/* 0xB8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, -/* 0xC0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, -/* 0xC8 */ _UNK, _UNK, _UNK, _UNK, 0x44, _UNK, _UNK, _UNK, -/* 0xD0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, -/* 0xD8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, -/* 0xE0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, -/* 0xE8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, -/* 0xF0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, -/* 0xF8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 0x45, -}; - -/* - * This table is indexed by the second opcode of the extended opcode - * pair. It returns an index into the opcode table (acpi_gbl_aml_op_info) - */ -static const u8 acpi_gbl_long_op_index[NUM_EXTENDED_OPCODE] = { -/* 0 1 2 3 4 5 6 7 */ -/* 8 9 A B C D E F */ -/* 0x00 */ _UNK, 0x46, 0x47, _UNK, _UNK, _UNK, _UNK, _UNK, -/* 0x08 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, -/* 0x10 */ _UNK, _UNK, 0x48, 0x49, _UNK, _UNK, _UNK, _UNK, -/* 0x18 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 0x7B, -/* 0x20 */ 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51, -/* 0x28 */ 0x52, 0x53, 0x54, _UNK, _UNK, _UNK, _UNK, _UNK, -/* 0x30 */ 0x55, 0x56, 0x57, 0x7e, _UNK, _UNK, _UNK, _UNK, -/* 0x38 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, -/* 0x40 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, -/* 0x48 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, -/* 0x50 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, -/* 0x58 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, -/* 0x60 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, -/* 0x68 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, -/* 0x70 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, -/* 0x78 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, -/* 0x80 */ 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, -/* 0x88 */ 0x7C, -}; - -/******************************************************************************* - * - * FUNCTION: acpi_ps_get_opcode_info - * - * PARAMETERS: Opcode - The AML opcode - * - * RETURN: A pointer to the info about the opcode. - * - * DESCRIPTION: Find AML opcode description based on the opcode. - * NOTE: This procedure must ALWAYS return a valid pointer! - * - ******************************************************************************/ - -const struct acpi_opcode_info *acpi_ps_get_opcode_info(u16 opcode) -{ - ACPI_FUNCTION_NAME(ps_get_opcode_info); - - /* - * Detect normal 8-bit opcode or extended 16-bit opcode - */ - if (!(opcode & 0xFF00)) { - - /* Simple (8-bit) opcode: 0-255, can't index beyond table */ - - return (&acpi_gbl_aml_op_info - [acpi_gbl_short_op_index[(u8) opcode]]); - } - - if (((opcode & 0xFF00) == AML_EXTENDED_OPCODE) && - (((u8) opcode) <= MAX_EXTENDED_OPCODE)) { - - /* Valid extended (16-bit) opcode */ - - return (&acpi_gbl_aml_op_info - [acpi_gbl_long_op_index[(u8) opcode]]); - } - - /* Unknown AML opcode */ - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Unknown AML opcode [%4.4X]\n", opcode)); - - return (&acpi_gbl_aml_op_info[_UNK]); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_get_opcode_name - * - * PARAMETERS: Opcode - The AML opcode - * - * RETURN: A pointer to the name of the opcode (ASCII String) - * Note: Never returns NULL. - * - * DESCRIPTION: Translate an opcode into a human-readable string - * - ******************************************************************************/ - -char *acpi_ps_get_opcode_name(u16 opcode) -{ -#if defined(ACPI_DISASSEMBLER) || defined (ACPI_DEBUG_OUTPUT) - - const struct acpi_opcode_info *op; - - op = acpi_ps_get_opcode_info(opcode); - - /* Always guaranteed to return a valid pointer */ - - return (op->name); - -#else - return ("OpcodeName unavailable"); - -#endif -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_get_argument_count - * - * PARAMETERS: op_type - Type associated with the AML opcode - * - * RETURN: Argument count - * - * DESCRIPTION: Obtain the number of expected arguments for an AML opcode - * - ******************************************************************************/ - -u8 acpi_ps_get_argument_count(u32 op_type) -{ - - if (op_type <= AML_TYPE_EXEC_6A_0T_1R) { - return (acpi_gbl_argument_count[op_type]); - } - - return (0); -} diff --git a/drivers/acpi/parser/psparse.c b/drivers/acpi/parser/psparse.c deleted file mode 100644 index 9da48fdb811a..000000000000 --- a/drivers/acpi/parser/psparse.c +++ /dev/null @@ -1,701 +0,0 @@ -/****************************************************************************** - * - * Module Name: psparse - Parser top level AML parse routines - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -/* - * Parse the AML and build an operation tree as most interpreters, - * like Perl, do. Parsing is done by hand rather than with a YACC - * generated parser to tightly constrain stack and dynamic memory - * usage. At the same time, parsing is kept flexible and the code - * fairly compact by parsing based on a list of AML opcode - * templates in aml_op_info[] - */ - -#include -#include -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_PARSER -ACPI_MODULE_NAME("psparse") - -/******************************************************************************* - * - * FUNCTION: acpi_ps_get_opcode_size - * - * PARAMETERS: Opcode - An AML opcode - * - * RETURN: Size of the opcode, in bytes (1 or 2) - * - * DESCRIPTION: Get the size of the current opcode. - * - ******************************************************************************/ -u32 acpi_ps_get_opcode_size(u32 opcode) -{ - - /* Extended (2-byte) opcode if > 255 */ - - if (opcode > 0x00FF) { - return (2); - } - - /* Otherwise, just a single byte opcode */ - - return (1); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_peek_opcode - * - * PARAMETERS: parser_state - A parser state object - * - * RETURN: Next AML opcode - * - * DESCRIPTION: Get next AML opcode (without incrementing AML pointer) - * - ******************************************************************************/ - -u16 acpi_ps_peek_opcode(struct acpi_parse_state * parser_state) -{ - u8 *aml; - u16 opcode; - - aml = parser_state->aml; - opcode = (u16) ACPI_GET8(aml); - - if (opcode == AML_EXTENDED_OP_PREFIX) { - - /* Extended opcode, get the second opcode byte */ - - aml++; - opcode = (u16) ((opcode << 8) | ACPI_GET8(aml)); - } - - return (opcode); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_complete_this_op - * - * PARAMETERS: walk_state - Current State - * Op - Op to complete - * - * RETURN: Status - * - * DESCRIPTION: Perform any cleanup at the completion of an Op. - * - ******************************************************************************/ - -acpi_status -acpi_ps_complete_this_op(struct acpi_walk_state * walk_state, - union acpi_parse_object * op) -{ - union acpi_parse_object *prev; - union acpi_parse_object *next; - const struct acpi_opcode_info *parent_info; - union acpi_parse_object *replacement_op = NULL; - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE_PTR(ps_complete_this_op, op); - - /* Check for null Op, can happen if AML code is corrupt */ - - if (!op) { - return_ACPI_STATUS(AE_OK); /* OK for now */ - } - - /* Delete this op and the subtree below it if asked to */ - - if (((walk_state->parse_flags & ACPI_PARSE_TREE_MASK) != - ACPI_PARSE_DELETE_TREE) - || (walk_state->op_info->class == AML_CLASS_ARGUMENT)) { - return_ACPI_STATUS(AE_OK); - } - - /* Make sure that we only delete this subtree */ - - if (op->common.parent) { - prev = op->common.parent->common.value.arg; - if (!prev) { - - /* Nothing more to do */ - - goto cleanup; - } - - /* - * Check if we need to replace the operator and its subtree - * with a return value op (placeholder op) - */ - parent_info = - acpi_ps_get_opcode_info(op->common.parent->common. - aml_opcode); - - switch (parent_info->class) { - case AML_CLASS_CONTROL: - break; - - case AML_CLASS_CREATE: - - /* - * These opcodes contain term_arg operands. The current - * op must be replaced by a placeholder return op - */ - replacement_op = - acpi_ps_alloc_op(AML_INT_RETURN_VALUE_OP); - if (!replacement_op) { - status = AE_NO_MEMORY; - } - break; - - case AML_CLASS_NAMED_OBJECT: - - /* - * These opcodes contain term_arg operands. The current - * op must be replaced by a placeholder return op - */ - if ((op->common.parent->common.aml_opcode == - AML_REGION_OP) - || (op->common.parent->common.aml_opcode == - AML_DATA_REGION_OP) - || (op->common.parent->common.aml_opcode == - AML_BUFFER_OP) - || (op->common.parent->common.aml_opcode == - AML_PACKAGE_OP) - || (op->common.parent->common.aml_opcode == - AML_BANK_FIELD_OP) - || (op->common.parent->common.aml_opcode == - AML_VAR_PACKAGE_OP)) { - replacement_op = - acpi_ps_alloc_op(AML_INT_RETURN_VALUE_OP); - if (!replacement_op) { - status = AE_NO_MEMORY; - } - } else - if ((op->common.parent->common.aml_opcode == - AML_NAME_OP) - && (walk_state->pass_number <= - ACPI_IMODE_LOAD_PASS2)) { - if ((op->common.aml_opcode == AML_BUFFER_OP) - || (op->common.aml_opcode == AML_PACKAGE_OP) - || (op->common.aml_opcode == - AML_VAR_PACKAGE_OP)) { - replacement_op = - acpi_ps_alloc_op(op->common. - aml_opcode); - if (!replacement_op) { - status = AE_NO_MEMORY; - } else { - replacement_op->named.data = - op->named.data; - replacement_op->named.length = - op->named.length; - } - } - } - break; - - default: - - replacement_op = - acpi_ps_alloc_op(AML_INT_RETURN_VALUE_OP); - if (!replacement_op) { - status = AE_NO_MEMORY; - } - } - - /* We must unlink this op from the parent tree */ - - if (prev == op) { - - /* This op is the first in the list */ - - if (replacement_op) { - replacement_op->common.parent = - op->common.parent; - replacement_op->common.value.arg = NULL; - replacement_op->common.node = op->common.node; - op->common.parent->common.value.arg = - replacement_op; - replacement_op->common.next = op->common.next; - } else { - op->common.parent->common.value.arg = - op->common.next; - } - } - - /* Search the parent list */ - - else - while (prev) { - - /* Traverse all siblings in the parent's argument list */ - - next = prev->common.next; - if (next == op) { - if (replacement_op) { - replacement_op->common.parent = - op->common.parent; - replacement_op->common.value. - arg = NULL; - replacement_op->common.node = - op->common.node; - prev->common.next = - replacement_op; - replacement_op->common.next = - op->common.next; - next = NULL; - } else { - prev->common.next = - op->common.next; - next = NULL; - } - } - prev = next; - } - } - - cleanup: - - /* Now we can actually delete the subtree rooted at Op */ - - acpi_ps_delete_parse_tree(op); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_next_parse_state - * - * PARAMETERS: walk_state - Current state - * Op - Current parse op - * callback_status - Status from previous operation - * - * RETURN: Status - * - * DESCRIPTION: Update the parser state based upon the return exception from - * the parser callback. - * - ******************************************************************************/ - -acpi_status -acpi_ps_next_parse_state(struct acpi_walk_state *walk_state, - union acpi_parse_object *op, - acpi_status callback_status) -{ - struct acpi_parse_state *parser_state = &walk_state->parser_state; - acpi_status status = AE_CTRL_PENDING; - - ACPI_FUNCTION_TRACE_PTR(ps_next_parse_state, op); - - switch (callback_status) { - case AE_CTRL_TERMINATE: - /* - * A control method was terminated via a RETURN statement. - * The walk of this method is complete. - */ - parser_state->aml = parser_state->aml_end; - status = AE_CTRL_TERMINATE; - break; - - case AE_CTRL_BREAK: - - parser_state->aml = walk_state->aml_last_while; - walk_state->control_state->common.value = FALSE; - status = AE_CTRL_BREAK; - break; - - case AE_CTRL_CONTINUE: - - parser_state->aml = walk_state->aml_last_while; - status = AE_CTRL_CONTINUE; - break; - - case AE_CTRL_PENDING: - - parser_state->aml = walk_state->aml_last_while; - break; - -#if 0 - case AE_CTRL_SKIP: - - parser_state->aml = parser_state->scope->parse_scope.pkg_end; - status = AE_OK; - break; -#endif - - case AE_CTRL_TRUE: - /* - * Predicate of an IF was true, and we are at the matching ELSE. - * Just close out this package - */ - parser_state->aml = acpi_ps_get_next_package_end(parser_state); - status = AE_CTRL_PENDING; - break; - - case AE_CTRL_FALSE: - /* - * Either an IF/WHILE Predicate was false or we encountered a BREAK - * opcode. In both cases, we do not execute the rest of the - * package; We simply close out the parent (finishing the walk of - * this branch of the tree) and continue execution at the parent - * level. - */ - parser_state->aml = parser_state->scope->parse_scope.pkg_end; - - /* In the case of a BREAK, just force a predicate (if any) to FALSE */ - - walk_state->control_state->common.value = FALSE; - status = AE_CTRL_END; - break; - - case AE_CTRL_TRANSFER: - - /* A method call (invocation) -- transfer control */ - - status = AE_CTRL_TRANSFER; - walk_state->prev_op = op; - walk_state->method_call_op = op; - walk_state->method_call_node = - (op->common.value.arg)->common.node; - - /* Will return value (if any) be used by the caller? */ - - walk_state->return_used = - acpi_ds_is_result_used(op, walk_state); - break; - - default: - - status = callback_status; - if ((callback_status & AE_CODE_MASK) == AE_CODE_CONTROL) { - status = AE_OK; - } - break; - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_parse_aml - * - * PARAMETERS: walk_state - Current state - * - * - * RETURN: Status - * - * DESCRIPTION: Parse raw AML and return a tree of ops - * - ******************************************************************************/ - -acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state) -{ - acpi_status status; - struct acpi_thread_state *thread; - struct acpi_thread_state *prev_walk_list = acpi_gbl_current_walk_list; - struct acpi_walk_state *previous_walk_state; - - ACPI_FUNCTION_TRACE(ps_parse_aml); - - ACPI_DEBUG_PRINT((ACPI_DB_PARSE, - "Entered with WalkState=%p Aml=%p size=%X\n", - walk_state, walk_state->parser_state.aml, - walk_state->parser_state.aml_size)); - - if (!walk_state->parser_state.aml) { - return_ACPI_STATUS(AE_NULL_OBJECT); - } - - /* Create and initialize a new thread state */ - - thread = acpi_ut_create_thread_state(); - if (!thread) { - if (walk_state->method_desc) { - - /* Executing a control method - additional cleanup */ - - acpi_ds_terminate_control_method( - walk_state->method_desc, walk_state); - } - - acpi_ds_delete_walk_state(walk_state); - return_ACPI_STATUS(AE_NO_MEMORY); - } - - walk_state->thread = thread; - - /* - * If executing a method, the starting sync_level is this method's - * sync_level - */ - if (walk_state->method_desc) { - walk_state->thread->current_sync_level = - walk_state->method_desc->method.sync_level; - } - - acpi_ds_push_walk_state(walk_state, thread); - - /* - * This global allows the AML debugger to get a handle to the currently - * executing control method. - */ - acpi_gbl_current_walk_list = thread; - - /* - * Execute the walk loop as long as there is a valid Walk State. This - * handles nested control method invocations without recursion. - */ - ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "State=%p\n", walk_state)); - - status = AE_OK; - while (walk_state) { - if (ACPI_SUCCESS(status)) { - /* - * The parse_loop executes AML until the method terminates - * or calls another method. - */ - status = acpi_ps_parse_loop(walk_state); - } - - ACPI_DEBUG_PRINT((ACPI_DB_PARSE, - "Completed one call to walk loop, %s State=%p\n", - acpi_format_exception(status), walk_state)); - - if (status == AE_CTRL_TRANSFER) { - /* - * A method call was detected. - * Transfer control to the called control method - */ - status = - acpi_ds_call_control_method(thread, walk_state, - NULL); - if (ACPI_FAILURE(status)) { - status = - acpi_ds_method_error(status, walk_state); - } - - /* - * If the transfer to the new method method call worked, a new walk - * state was created -- get it - */ - walk_state = acpi_ds_get_current_walk_state(thread); - continue; - } else if (status == AE_CTRL_TERMINATE) { - status = AE_OK; - } else if ((status != AE_OK) && (walk_state->method_desc)) { - - /* Either the method parse or actual execution failed */ - - ACPI_ERROR_METHOD("Method parse/execution failed", - walk_state->method_node, NULL, - status); - - /* Check for possible multi-thread reentrancy problem */ - - if ((status == AE_ALREADY_EXISTS) && - (!walk_state->method_desc->method.mutex)) { - ACPI_INFO((AE_INFO, - "Marking method %4.4s as Serialized because of AE_ALREADY_EXISTS error", - walk_state->method_node->name. - ascii)); - - /* - * Method tried to create an object twice. The probable cause is - * that the method cannot handle reentrancy. - * - * The method is marked not_serialized, but it tried to create - * a named object, causing the second thread entrance to fail. - * Workaround this problem by marking the method permanently - * as Serialized. - */ - walk_state->method_desc->method.method_flags |= - AML_METHOD_SERIALIZED; - walk_state->method_desc->method.sync_level = 0; - } - } - - /* We are done with this walk, move on to the parent if any */ - - walk_state = acpi_ds_pop_walk_state(thread); - - /* Reset the current scope to the beginning of scope stack */ - - acpi_ds_scope_stack_clear(walk_state); - - /* - * If we just returned from the execution of a control method or if we - * encountered an error during the method parse phase, there's lots of - * cleanup to do - */ - if (((walk_state->parse_flags & ACPI_PARSE_MODE_MASK) == - ACPI_PARSE_EXECUTE) || (ACPI_FAILURE(status))) { - acpi_ds_terminate_control_method(walk_state-> - method_desc, - walk_state); - } - - /* Delete this walk state and all linked control states */ - - acpi_ps_cleanup_scope(&walk_state->parser_state); - previous_walk_state = walk_state; - - ACPI_DEBUG_PRINT((ACPI_DB_PARSE, - "ReturnValue=%p, ImplicitValue=%p State=%p\n", - walk_state->return_desc, - walk_state->implicit_return_obj, walk_state)); - - /* Check if we have restarted a preempted walk */ - - walk_state = acpi_ds_get_current_walk_state(thread); - if (walk_state) { - if (ACPI_SUCCESS(status)) { - /* - * There is another walk state, restart it. - * If the method return value is not used by the parent, - * The object is deleted - */ - if (!previous_walk_state->return_desc) { - /* - * In slack mode execution, if there is no return value - * we should implicitly return zero (0) as a default value. - */ - if (acpi_gbl_enable_interpreter_slack && - !previous_walk_state-> - implicit_return_obj) { - previous_walk_state-> - implicit_return_obj = - acpi_ut_create_internal_object - (ACPI_TYPE_INTEGER); - if (!previous_walk_state-> - implicit_return_obj) { - return_ACPI_STATUS - (AE_NO_MEMORY); - } - - previous_walk_state-> - implicit_return_obj-> - integer.value = 0; - } - - /* Restart the calling control method */ - - status = - acpi_ds_restart_control_method - (walk_state, - previous_walk_state-> - implicit_return_obj); - } else { - /* - * We have a valid return value, delete any implicit - * return value. - */ - acpi_ds_clear_implicit_return - (previous_walk_state); - - status = - acpi_ds_restart_control_method - (walk_state, - previous_walk_state->return_desc); - } - if (ACPI_SUCCESS(status)) { - walk_state->walk_type |= - ACPI_WALK_METHOD_RESTART; - } - } else { - /* On error, delete any return object or implicit return */ - - acpi_ut_remove_reference(previous_walk_state-> - return_desc); - acpi_ds_clear_implicit_return - (previous_walk_state); - } - } - - /* - * Just completed a 1st-level method, save the final internal return - * value (if any) - */ - else if (previous_walk_state->caller_return_desc) { - if (previous_walk_state->implicit_return_obj) { - *(previous_walk_state->caller_return_desc) = - previous_walk_state->implicit_return_obj; - } else { - /* NULL if no return value */ - - *(previous_walk_state->caller_return_desc) = - previous_walk_state->return_desc; - } - } else { - if (previous_walk_state->return_desc) { - - /* Caller doesn't want it, must delete it */ - - acpi_ut_remove_reference(previous_walk_state-> - return_desc); - } - if (previous_walk_state->implicit_return_obj) { - - /* Caller doesn't want it, must delete it */ - - acpi_ut_remove_reference(previous_walk_state-> - implicit_return_obj); - } - } - - acpi_ds_delete_walk_state(previous_walk_state); - } - - /* Normal exit */ - - acpi_ex_release_all_mutexes(thread); - acpi_ut_delete_generic_state(ACPI_CAST_PTR - (union acpi_generic_state, thread)); - acpi_gbl_current_walk_list = prev_walk_list; - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/parser/psscope.c b/drivers/acpi/parser/psscope.c deleted file mode 100644 index 22929ca1ffe4..000000000000 --- a/drivers/acpi/parser/psscope.c +++ /dev/null @@ -1,265 +0,0 @@ -/****************************************************************************** - * - * Module Name: psscope - Parser scope stack management routines - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_PARSER -ACPI_MODULE_NAME("psscope") - -/******************************************************************************* - * - * FUNCTION: acpi_ps_get_parent_scope - * - * PARAMETERS: parser_state - Current parser state object - * - * RETURN: Pointer to an Op object - * - * DESCRIPTION: Get parent of current op being parsed - * - ******************************************************************************/ -union acpi_parse_object *acpi_ps_get_parent_scope(struct acpi_parse_state - *parser_state) -{ - - return (parser_state->scope->parse_scope.op); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_has_completed_scope - * - * PARAMETERS: parser_state - Current parser state object - * - * RETURN: Boolean, TRUE = scope completed. - * - * DESCRIPTION: Is parsing of current argument complete? Determined by - * 1) AML pointer is at or beyond the end of the scope - * 2) The scope argument count has reached zero. - * - ******************************************************************************/ - -u8 acpi_ps_has_completed_scope(struct acpi_parse_state * parser_state) -{ - - return ((u8) - ((parser_state->aml >= parser_state->scope->parse_scope.arg_end - || !parser_state->scope->parse_scope.arg_count))); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_init_scope - * - * PARAMETERS: parser_state - Current parser state object - * Root - the Root Node of this new scope - * - * RETURN: Status - * - * DESCRIPTION: Allocate and init a new scope object - * - ******************************************************************************/ - -acpi_status -acpi_ps_init_scope(struct acpi_parse_state * parser_state, - union acpi_parse_object * root_op) -{ - union acpi_generic_state *scope; - - ACPI_FUNCTION_TRACE_PTR(ps_init_scope, root_op); - - scope = acpi_ut_create_generic_state(); - if (!scope) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - scope->common.descriptor_type = ACPI_DESC_TYPE_STATE_RPSCOPE; - scope->parse_scope.op = root_op; - scope->parse_scope.arg_count = ACPI_VAR_ARGS; - scope->parse_scope.arg_end = parser_state->aml_end; - scope->parse_scope.pkg_end = parser_state->aml_end; - - parser_state->scope = scope; - parser_state->start_op = root_op; - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_push_scope - * - * PARAMETERS: parser_state - Current parser state object - * Op - Current op to be pushed - * remaining_args - List of args remaining - * arg_count - Fixed or variable number of args - * - * RETURN: Status - * - * DESCRIPTION: Push current op to begin parsing its argument - * - ******************************************************************************/ - -acpi_status -acpi_ps_push_scope(struct acpi_parse_state *parser_state, - union acpi_parse_object *op, - u32 remaining_args, u32 arg_count) -{ - union acpi_generic_state *scope; - - ACPI_FUNCTION_TRACE_PTR(ps_push_scope, op); - - scope = acpi_ut_create_generic_state(); - if (!scope) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - scope->common.descriptor_type = ACPI_DESC_TYPE_STATE_PSCOPE; - scope->parse_scope.op = op; - scope->parse_scope.arg_list = remaining_args; - scope->parse_scope.arg_count = arg_count; - scope->parse_scope.pkg_end = parser_state->pkg_end; - - /* Push onto scope stack */ - - acpi_ut_push_generic_state(&parser_state->scope, scope); - - if (arg_count == ACPI_VAR_ARGS) { - - /* Multiple arguments */ - - scope->parse_scope.arg_end = parser_state->pkg_end; - } else { - /* Single argument */ - - scope->parse_scope.arg_end = ACPI_TO_POINTER(ACPI_MAX_PTR); - } - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_pop_scope - * - * PARAMETERS: parser_state - Current parser state object - * Op - Where the popped op is returned - * arg_list - Where the popped "next argument" is - * returned - * arg_count - Count of objects in arg_list - * - * RETURN: Status - * - * DESCRIPTION: Return to parsing a previous op - * - ******************************************************************************/ - -void -acpi_ps_pop_scope(struct acpi_parse_state *parser_state, - union acpi_parse_object **op, u32 * arg_list, u32 * arg_count) -{ - union acpi_generic_state *scope = parser_state->scope; - - ACPI_FUNCTION_TRACE(ps_pop_scope); - - /* Only pop the scope if there is in fact a next scope */ - - if (scope->common.next) { - scope = acpi_ut_pop_generic_state(&parser_state->scope); - - /* Return to parsing previous op */ - - *op = scope->parse_scope.op; - *arg_list = scope->parse_scope.arg_list; - *arg_count = scope->parse_scope.arg_count; - parser_state->pkg_end = scope->parse_scope.pkg_end; - - /* All done with this scope state structure */ - - acpi_ut_delete_generic_state(scope); - } else { - /* Empty parse stack, prepare to fetch next opcode */ - - *op = NULL; - *arg_list = 0; - *arg_count = 0; - } - - ACPI_DEBUG_PRINT((ACPI_DB_PARSE, - "Popped Op %p Args %X\n", *op, *arg_count)); - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_cleanup_scope - * - * PARAMETERS: parser_state - Current parser state object - * - * RETURN: None - * - * DESCRIPTION: Destroy available list, remaining stack levels, and return - * root scope - * - ******************************************************************************/ - -void acpi_ps_cleanup_scope(struct acpi_parse_state *parser_state) -{ - union acpi_generic_state *scope; - - ACPI_FUNCTION_TRACE_PTR(ps_cleanup_scope, parser_state); - - if (!parser_state) { - return_VOID; - } - - /* Delete anything on the scope stack */ - - while (parser_state->scope) { - scope = acpi_ut_pop_generic_state(&parser_state->scope); - acpi_ut_delete_generic_state(scope); - } - - return_VOID; -} diff --git a/drivers/acpi/parser/pstree.c b/drivers/acpi/parser/pstree.c deleted file mode 100644 index 8e73fbf00971..000000000000 --- a/drivers/acpi/parser/pstree.c +++ /dev/null @@ -1,312 +0,0 @@ -/****************************************************************************** - * - * Module Name: pstree - Parser op tree manipulation/traversal/search - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include - -#define _COMPONENT ACPI_PARSER -ACPI_MODULE_NAME("pstree") - -/* Local prototypes */ -#ifdef ACPI_OBSOLETE_FUNCTIONS -union acpi_parse_object *acpi_ps_get_child(union acpi_parse_object *op); -#endif - -/******************************************************************************* - * - * FUNCTION: acpi_ps_get_arg - * - * PARAMETERS: Op - Get an argument for this op - * Argn - Nth argument to get - * - * RETURN: The argument (as an Op object). NULL if argument does not exist - * - * DESCRIPTION: Get the specified op's argument. - * - ******************************************************************************/ - -union acpi_parse_object *acpi_ps_get_arg(union acpi_parse_object *op, u32 argn) -{ - union acpi_parse_object *arg = NULL; - const struct acpi_opcode_info *op_info; - - ACPI_FUNCTION_ENTRY(); - - /* Get the info structure for this opcode */ - - op_info = acpi_ps_get_opcode_info(op->common.aml_opcode); - if (op_info->class == AML_CLASS_UNKNOWN) { - - /* Invalid opcode or ASCII character */ - - return (NULL); - } - - /* Check if this opcode requires argument sub-objects */ - - if (!(op_info->flags & AML_HAS_ARGS)) { - - /* Has no linked argument objects */ - - return (NULL); - } - - /* Get the requested argument object */ - - arg = op->common.value.arg; - while (arg && argn) { - argn--; - arg = arg->common.next; - } - - return (arg); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_append_arg - * - * PARAMETERS: Op - Append an argument to this Op. - * Arg - Argument Op to append - * - * RETURN: None. - * - * DESCRIPTION: Append an argument to an op's argument list (a NULL arg is OK) - * - ******************************************************************************/ - -void -acpi_ps_append_arg(union acpi_parse_object *op, union acpi_parse_object *arg) -{ - union acpi_parse_object *prev_arg; - const struct acpi_opcode_info *op_info; - - ACPI_FUNCTION_ENTRY(); - - if (!op) { - return; - } - - /* Get the info structure for this opcode */ - - op_info = acpi_ps_get_opcode_info(op->common.aml_opcode); - if (op_info->class == AML_CLASS_UNKNOWN) { - - /* Invalid opcode */ - - ACPI_ERROR((AE_INFO, "Invalid AML Opcode: 0x%2.2X", - op->common.aml_opcode)); - return; - } - - /* Check if this opcode requires argument sub-objects */ - - if (!(op_info->flags & AML_HAS_ARGS)) { - - /* Has no linked argument objects */ - - return; - } - - /* Append the argument to the linked argument list */ - - if (op->common.value.arg) { - - /* Append to existing argument list */ - - prev_arg = op->common.value.arg; - while (prev_arg->common.next) { - prev_arg = prev_arg->common.next; - } - prev_arg->common.next = arg; - } else { - /* No argument list, this will be the first argument */ - - op->common.value.arg = arg; - } - - /* Set the parent in this arg and any args linked after it */ - - while (arg) { - arg->common.parent = op; - arg = arg->common.next; - - op->common.arg_list_length++; - } -} - -#ifdef ACPI_FUTURE_USAGE -/******************************************************************************* - * - * FUNCTION: acpi_ps_get_depth_next - * - * PARAMETERS: Origin - Root of subtree to search - * Op - Last (previous) Op that was found - * - * RETURN: Next Op found in the search. - * - * DESCRIPTION: Get next op in tree (walking the tree in depth-first order) - * Return NULL when reaching "origin" or when walking up from root - * - ******************************************************************************/ - -union acpi_parse_object *acpi_ps_get_depth_next(union acpi_parse_object *origin, - union acpi_parse_object *op) -{ - union acpi_parse_object *next = NULL; - union acpi_parse_object *parent; - union acpi_parse_object *arg; - - ACPI_FUNCTION_ENTRY(); - - if (!op) { - return (NULL); - } - - /* Look for an argument or child */ - - next = acpi_ps_get_arg(op, 0); - if (next) { - return (next); - } - - /* Look for a sibling */ - - next = op->common.next; - if (next) { - return (next); - } - - /* Look for a sibling of parent */ - - parent = op->common.parent; - - while (parent) { - arg = acpi_ps_get_arg(parent, 0); - while (arg && (arg != origin) && (arg != op)) { - arg = arg->common.next; - } - - if (arg == origin) { - - /* Reached parent of origin, end search */ - - return (NULL); - } - - if (parent->common.next) { - - /* Found sibling of parent */ - - return (parent->common.next); - } - - op = parent; - parent = parent->common.parent; - } - - return (next); -} - -#ifdef ACPI_OBSOLETE_FUNCTIONS -/******************************************************************************* - * - * FUNCTION: acpi_ps_get_child - * - * PARAMETERS: Op - Get the child of this Op - * - * RETURN: Child Op, Null if none is found. - * - * DESCRIPTION: Get op's children or NULL if none - * - ******************************************************************************/ - -union acpi_parse_object *acpi_ps_get_child(union acpi_parse_object *op) -{ - union acpi_parse_object *child = NULL; - - ACPI_FUNCTION_ENTRY(); - - switch (op->common.aml_opcode) { - case AML_SCOPE_OP: - case AML_ELSE_OP: - case AML_DEVICE_OP: - case AML_THERMAL_ZONE_OP: - case AML_INT_METHODCALL_OP: - - child = acpi_ps_get_arg(op, 0); - break; - - case AML_BUFFER_OP: - case AML_PACKAGE_OP: - case AML_METHOD_OP: - case AML_IF_OP: - case AML_WHILE_OP: - case AML_FIELD_OP: - - child = acpi_ps_get_arg(op, 1); - break; - - case AML_POWER_RES_OP: - case AML_INDEX_FIELD_OP: - - child = acpi_ps_get_arg(op, 2); - break; - - case AML_PROCESSOR_OP: - case AML_BANK_FIELD_OP: - - child = acpi_ps_get_arg(op, 3); - break; - - default: - /* All others have no children */ - break; - } - - return (child); -} -#endif -#endif /* ACPI_FUTURE_USAGE */ diff --git a/drivers/acpi/parser/psutils.c b/drivers/acpi/parser/psutils.c deleted file mode 100644 index eec7d624db8e..000000000000 --- a/drivers/acpi/parser/psutils.c +++ /dev/null @@ -1,244 +0,0 @@ -/****************************************************************************** - * - * Module Name: psutils - Parser miscellaneous utilities (Parser only) - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include - -#define _COMPONENT ACPI_PARSER -ACPI_MODULE_NAME("psutils") - -/******************************************************************************* - * - * FUNCTION: acpi_ps_create_scope_op - * - * PARAMETERS: None - * - * RETURN: A new Scope object, null on failure - * - * DESCRIPTION: Create a Scope and associated namepath op with the root name - * - ******************************************************************************/ -union acpi_parse_object *acpi_ps_create_scope_op(void) -{ - union acpi_parse_object *scope_op; - - scope_op = acpi_ps_alloc_op(AML_SCOPE_OP); - if (!scope_op) { - return (NULL); - } - - scope_op->named.name = ACPI_ROOT_NAME; - return (scope_op); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_init_op - * - * PARAMETERS: Op - A newly allocated Op object - * Opcode - Opcode to store in the Op - * - * RETURN: None - * - * DESCRIPTION: Initialize a parse (Op) object - * - ******************************************************************************/ - -void acpi_ps_init_op(union acpi_parse_object *op, u16 opcode) -{ - ACPI_FUNCTION_ENTRY(); - - op->common.descriptor_type = ACPI_DESC_TYPE_PARSER; - op->common.aml_opcode = opcode; - - ACPI_DISASM_ONLY_MEMBERS(ACPI_STRNCPY(op->common.aml_op_name, - (acpi_ps_get_opcode_info - (opcode))->name, - sizeof(op->common.aml_op_name))); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_alloc_op - * - * PARAMETERS: Opcode - Opcode that will be stored in the new Op - * - * RETURN: Pointer to the new Op, null on failure - * - * DESCRIPTION: Allocate an acpi_op, choose op type (and thus size) based on - * opcode. A cache of opcodes is available for the pure - * GENERIC_OP, since this is by far the most commonly used. - * - ******************************************************************************/ - -union acpi_parse_object *acpi_ps_alloc_op(u16 opcode) -{ - union acpi_parse_object *op; - const struct acpi_opcode_info *op_info; - u8 flags = ACPI_PARSEOP_GENERIC; - - ACPI_FUNCTION_ENTRY(); - - op_info = acpi_ps_get_opcode_info(opcode); - - /* Determine type of parse_op required */ - - if (op_info->flags & AML_DEFER) { - flags = ACPI_PARSEOP_DEFERRED; - } else if (op_info->flags & AML_NAMED) { - flags = ACPI_PARSEOP_NAMED; - } else if (opcode == AML_INT_BYTELIST_OP) { - flags = ACPI_PARSEOP_BYTELIST; - } - - /* Allocate the minimum required size object */ - - if (flags == ACPI_PARSEOP_GENERIC) { - - /* The generic op (default) is by far the most common (16 to 1) */ - - op = acpi_os_acquire_object(acpi_gbl_ps_node_cache); - } else { - /* Extended parseop */ - - op = acpi_os_acquire_object(acpi_gbl_ps_node_ext_cache); - } - - /* Initialize the Op */ - - if (op) { - acpi_ps_init_op(op, opcode); - op->common.flags = flags; - } - - return (op); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_free_op - * - * PARAMETERS: Op - Op to be freed - * - * RETURN: None. - * - * DESCRIPTION: Free an Op object. Either put it on the GENERIC_OP cache list - * or actually free it. - * - ******************************************************************************/ - -void acpi_ps_free_op(union acpi_parse_object *op) -{ - ACPI_FUNCTION_NAME(ps_free_op); - - if (op->common.aml_opcode == AML_INT_RETURN_VALUE_OP) { - ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "Free retval op: %p\n", - op)); - } - - if (op->common.flags & ACPI_PARSEOP_GENERIC) { - (void)acpi_os_release_object(acpi_gbl_ps_node_cache, op); - } else { - (void)acpi_os_release_object(acpi_gbl_ps_node_ext_cache, op); - } -} - -/******************************************************************************* - * - * FUNCTION: Utility functions - * - * DESCRIPTION: Low level character and object functions - * - ******************************************************************************/ - -/* - * Is "c" a namestring lead character? - */ -u8 acpi_ps_is_leading_char(u32 c) -{ - return ((u8) (c == '_' || (c >= 'A' && c <= 'Z'))); -} - -/* - * Is "c" a namestring prefix character? - */ -u8 acpi_ps_is_prefix_char(u32 c) -{ - return ((u8) (c == '\\' || c == '^')); -} - -/* - * Get op's name (4-byte name segment) or 0 if unnamed - */ -#ifdef ACPI_FUTURE_USAGE -u32 acpi_ps_get_name(union acpi_parse_object * op) -{ - - /* The "generic" object has no name associated with it */ - - if (op->common.flags & ACPI_PARSEOP_GENERIC) { - return (0); - } - - /* Only the "Extended" parse objects have a name */ - - return (op->named.name); -} -#endif /* ACPI_FUTURE_USAGE */ - -/* - * Set op's name - */ -void acpi_ps_set_name(union acpi_parse_object *op, u32 name) -{ - - /* The "generic" object has no name associated with it */ - - if (op->common.flags & ACPI_PARSEOP_GENERIC) { - return; - } - - op->named.name = name; -} diff --git a/drivers/acpi/parser/pswalk.c b/drivers/acpi/parser/pswalk.c deleted file mode 100644 index dacc4228ba1a..000000000000 --- a/drivers/acpi/parser/pswalk.c +++ /dev/null @@ -1,110 +0,0 @@ -/****************************************************************************** - * - * Module Name: pswalk - Parser routines to walk parsed op tree(s) - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_PARSER -ACPI_MODULE_NAME("pswalk") - -/******************************************************************************* - * - * FUNCTION: acpi_ps_delete_parse_tree - * - * PARAMETERS: subtree_root - Root of tree (or subtree) to delete - * - * RETURN: None - * - * DESCRIPTION: Delete a portion of or an entire parse tree. - * - ******************************************************************************/ -void acpi_ps_delete_parse_tree(union acpi_parse_object *subtree_root) -{ - union acpi_parse_object *op = subtree_root; - union acpi_parse_object *next = NULL; - union acpi_parse_object *parent = NULL; - - ACPI_FUNCTION_TRACE_PTR(ps_delete_parse_tree, subtree_root); - - /* Visit all nodes in the subtree */ - - while (op) { - - /* Check if we are not ascending */ - - if (op != parent) { - - /* Look for an argument or child of the current op */ - - next = acpi_ps_get_arg(op, 0); - if (next) { - - /* Still going downward in tree (Op is not completed yet) */ - - op = next; - continue; - } - } - - /* No more children, this Op is complete. */ - - next = op->common.next; - parent = op->common.parent; - - acpi_ps_free_op(op); - - /* If we are back to the starting point, the walk is complete. */ - - if (op == subtree_root) { - return_VOID; - } - if (next) { - op = next; - } else { - op = parent; - } - } - - return_VOID; -} diff --git a/drivers/acpi/parser/psxface.c b/drivers/acpi/parser/psxface.c deleted file mode 100644 index 98c31a893706..000000000000 --- a/drivers/acpi/parser/psxface.c +++ /dev/null @@ -1,385 +0,0 @@ -/****************************************************************************** - * - * Module Name: psxface - Parser external interfaces - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_PARSER -ACPI_MODULE_NAME("psxface") - -/* Local Prototypes */ -static void acpi_ps_start_trace(struct acpi_evaluate_info *info); - -static void acpi_ps_stop_trace(struct acpi_evaluate_info *info); - -static void -acpi_ps_update_parameter_list(struct acpi_evaluate_info *info, u16 action); - -/******************************************************************************* - * - * FUNCTION: acpi_debug_trace - * - * PARAMETERS: method_name - Valid ACPI name string - * debug_level - Optional level mask. 0 to use default - * debug_layer - Optional layer mask. 0 to use default - * Flags - bit 1: one shot(1) or persistent(0) - * - * RETURN: Status - * - * DESCRIPTION: External interface to enable debug tracing during control - * method execution - * - ******************************************************************************/ - -acpi_status -acpi_debug_trace(char *name, u32 debug_level, u32 debug_layer, u32 flags) -{ - acpi_status status; - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* TBDs: Validate name, allow full path or just nameseg */ - - acpi_gbl_trace_method_name = *ACPI_CAST_PTR(u32, name); - acpi_gbl_trace_flags = flags; - - if (debug_level) { - acpi_gbl_trace_dbg_level = debug_level; - } - if (debug_layer) { - acpi_gbl_trace_dbg_layer = debug_layer; - } - - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_start_trace - * - * PARAMETERS: Info - Method info struct - * - * RETURN: None - * - * DESCRIPTION: Start control method execution trace - * - ******************************************************************************/ - -static void acpi_ps_start_trace(struct acpi_evaluate_info *info) -{ - acpi_status status; - - ACPI_FUNCTION_ENTRY(); - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return; - } - - if ((!acpi_gbl_trace_method_name) || - (acpi_gbl_trace_method_name != info->resolved_node->name.integer)) { - goto exit; - } - - acpi_gbl_original_dbg_level = acpi_dbg_level; - acpi_gbl_original_dbg_layer = acpi_dbg_layer; - - acpi_dbg_level = 0x00FFFFFF; - acpi_dbg_layer = ACPI_UINT32_MAX; - - if (acpi_gbl_trace_dbg_level) { - acpi_dbg_level = acpi_gbl_trace_dbg_level; - } - if (acpi_gbl_trace_dbg_layer) { - acpi_dbg_layer = acpi_gbl_trace_dbg_layer; - } - - exit: - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_stop_trace - * - * PARAMETERS: Info - Method info struct - * - * RETURN: None - * - * DESCRIPTION: Stop control method execution trace - * - ******************************************************************************/ - -static void acpi_ps_stop_trace(struct acpi_evaluate_info *info) -{ - acpi_status status; - - ACPI_FUNCTION_ENTRY(); - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return; - } - - if ((!acpi_gbl_trace_method_name) || - (acpi_gbl_trace_method_name != info->resolved_node->name.integer)) { - goto exit; - } - - /* Disable further tracing if type is one-shot */ - - if (acpi_gbl_trace_flags & 1) { - acpi_gbl_trace_method_name = 0; - acpi_gbl_trace_dbg_level = 0; - acpi_gbl_trace_dbg_layer = 0; - } - - acpi_dbg_level = acpi_gbl_original_dbg_level; - acpi_dbg_layer = acpi_gbl_original_dbg_layer; - - exit: - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_execute_method - * - * PARAMETERS: Info - Method info block, contains: - * Node - Method Node to execute - * obj_desc - Method object - * Parameters - List of parameters to pass to the method, - * terminated by NULL. Params itself may be - * NULL if no parameters are being passed. - * return_object - Where to put method's return value (if - * any). If NULL, no value is returned. - * parameter_type - Type of Parameter list - * return_object - Where to put method's return value (if - * any). If NULL, no value is returned. - * pass_number - Parse or execute pass - * - * RETURN: Status - * - * DESCRIPTION: Execute a control method - * - ******************************************************************************/ - -acpi_status acpi_ps_execute_method(struct acpi_evaluate_info *info) -{ - acpi_status status; - union acpi_parse_object *op; - struct acpi_walk_state *walk_state; - - ACPI_FUNCTION_TRACE(ps_execute_method); - - /* Validate the Info and method Node */ - - if (!info || !info->resolved_node) { - return_ACPI_STATUS(AE_NULL_ENTRY); - } - - /* Init for new method, wait on concurrency semaphore */ - - status = - acpi_ds_begin_method_execution(info->resolved_node, info->obj_desc, - NULL); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * The caller "owns" the parameters, so give each one an extra reference - */ - acpi_ps_update_parameter_list(info, REF_INCREMENT); - - /* Begin tracing if requested */ - - acpi_ps_start_trace(info); - - /* - * Execute the method. Performs parse simultaneously - */ - ACPI_DEBUG_PRINT((ACPI_DB_PARSE, - "**** Begin Method Parse/Execute [%4.4s] **** Node=%p Obj=%p\n", - info->resolved_node->name.ascii, info->resolved_node, - info->obj_desc)); - - /* Create and init a Root Node */ - - op = acpi_ps_create_scope_op(); - if (!op) { - status = AE_NO_MEMORY; - goto cleanup; - } - - /* Create and initialize a new walk state */ - - info->pass_number = ACPI_IMODE_EXECUTE; - walk_state = - acpi_ds_create_walk_state(info->obj_desc->method.owner_id, NULL, - NULL, NULL); - if (!walk_state) { - status = AE_NO_MEMORY; - goto cleanup; - } - - status = acpi_ds_init_aml_walk(walk_state, op, info->resolved_node, - info->obj_desc->method.aml_start, - info->obj_desc->method.aml_length, info, - info->pass_number); - if (ACPI_FAILURE(status)) { - acpi_ds_delete_walk_state(walk_state); - goto cleanup; - } - - /* Invoke an internal method if necessary */ - - if (info->obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY) { - status = info->obj_desc->method.implementation(walk_state); - info->return_object = walk_state->return_desc; - - /* Cleanup states */ - - acpi_ds_scope_stack_clear(walk_state); - acpi_ps_cleanup_scope(&walk_state->parser_state); - acpi_ds_terminate_control_method(walk_state->method_desc, - walk_state); - acpi_ds_delete_walk_state(walk_state); - goto cleanup; - } - - /* - * Start method evaluation with an implicit return of zero. - * This is done for Windows compatibility. - */ - if (acpi_gbl_enable_interpreter_slack) { - walk_state->implicit_return_obj = - acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); - if (!walk_state->implicit_return_obj) { - status = AE_NO_MEMORY; - acpi_ds_delete_walk_state(walk_state); - goto cleanup; - } - - walk_state->implicit_return_obj->integer.value = 0; - } - - /* Parse the AML */ - - status = acpi_ps_parse_aml(walk_state); - - /* walk_state was deleted by parse_aml */ - - cleanup: - acpi_ps_delete_parse_tree(op); - - /* End optional tracing */ - - acpi_ps_stop_trace(info); - - /* Take away the extra reference that we gave the parameters above */ - - acpi_ps_update_parameter_list(info, REF_DECREMENT); - - /* Exit now if error above */ - - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * If the method has returned an object, signal this to the caller with - * a control exception code - */ - if (info->return_object) { - ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "Method returned ObjDesc=%p\n", - info->return_object)); - ACPI_DUMP_STACK_ENTRY(info->return_object); - - status = AE_CTRL_RETURN_VALUE; - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ps_update_parameter_list - * - * PARAMETERS: Info - See struct acpi_evaluate_info - * (Used: parameter_type and Parameters) - * Action - Add or Remove reference - * - * RETURN: Status - * - * DESCRIPTION: Update reference count on all method parameter objects - * - ******************************************************************************/ - -static void -acpi_ps_update_parameter_list(struct acpi_evaluate_info *info, u16 action) -{ - u32 i; - - if (info->parameters) { - - /* Update reference count for each parameter */ - - for (i = 0; info->parameters[i]; i++) { - - /* Ignore errors, just do them all */ - - (void)acpi_ut_update_object_reference(info-> - parameters[i], - action); - } - } -} diff --git a/drivers/acpi/proc.c b/drivers/acpi/proc.c new file mode 100644 index 000000000000..1c4851ff2657 --- /dev/null +++ b/drivers/acpi/proc.c @@ -0,0 +1,520 @@ +#include +#include +#include +#include +#include + +#include +#include + +#ifdef CONFIG_X86 +#include +#endif + +#include "sleep.h" + +#define _COMPONENT ACPI_SYSTEM_COMPONENT + +/* + * this file provides support for: + * /proc/acpi/sleep + * /proc/acpi/alarm + * /proc/acpi/wakeup + */ + +ACPI_MODULE_NAME("sleep") +#ifdef CONFIG_ACPI_PROCFS +static int acpi_system_sleep_seq_show(struct seq_file *seq, void *offset) +{ + int i; + + for (i = 0; i <= ACPI_STATE_S5; i++) { + if (sleep_states[i]) { + seq_printf(seq, "S%d ", i); + } + } + + seq_puts(seq, "\n"); + + return 0; +} + +static int acpi_system_sleep_open_fs(struct inode *inode, struct file *file) +{ + return single_open(file, acpi_system_sleep_seq_show, PDE(inode)->data); +} + +static ssize_t +acpi_system_write_sleep(struct file *file, + const char __user * buffer, size_t count, loff_t * ppos) +{ + char str[12]; + u32 state = 0; + int error = 0; + + if (count > sizeof(str) - 1) + goto Done; + memset(str, 0, sizeof(str)); + if (copy_from_user(str, buffer, count)) + return -EFAULT; + + /* Check for S4 bios request */ + if (!strcmp(str, "4b")) { + error = acpi_suspend(4); + goto Done; + } + state = simple_strtoul(str, NULL, 0); +#ifdef CONFIG_HIBERNATION + if (state == 4) { + error = hibernate(); + goto Done; + } +#endif + error = acpi_suspend(state); + Done: + return error ? error : count; +} +#endif /* CONFIG_ACPI_PROCFS */ + +#if defined(CONFIG_RTC_DRV_CMOS) || defined(CONFIG_RTC_DRV_CMOS_MODULE) || !defined(CONFIG_X86) +/* use /sys/class/rtc/rtcX/wakealarm instead; it's not ACPI-specific */ +#else +#define HAVE_ACPI_LEGACY_ALARM +#endif + +#ifdef HAVE_ACPI_LEGACY_ALARM + +static int acpi_system_alarm_seq_show(struct seq_file *seq, void *offset) +{ + u32 sec, min, hr; + u32 day, mo, yr, cent = 0; + unsigned char rtc_control = 0; + unsigned long flags; + + spin_lock_irqsave(&rtc_lock, flags); + + sec = CMOS_READ(RTC_SECONDS_ALARM); + min = CMOS_READ(RTC_MINUTES_ALARM); + hr = CMOS_READ(RTC_HOURS_ALARM); + rtc_control = CMOS_READ(RTC_CONTROL); + + /* If we ever get an FACP with proper values... */ + if (acpi_gbl_FADT.day_alarm) + /* ACPI spec: only low 6 its should be cared */ + day = CMOS_READ(acpi_gbl_FADT.day_alarm) & 0x3F; + else + day = CMOS_READ(RTC_DAY_OF_MONTH); + if (acpi_gbl_FADT.month_alarm) + mo = CMOS_READ(acpi_gbl_FADT.month_alarm); + else + mo = CMOS_READ(RTC_MONTH); + if (acpi_gbl_FADT.century) + cent = CMOS_READ(acpi_gbl_FADT.century); + + yr = CMOS_READ(RTC_YEAR); + + spin_unlock_irqrestore(&rtc_lock, flags); + + if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) { + sec = bcd2bin(sec); + min = bcd2bin(min); + hr = bcd2bin(hr); + day = bcd2bin(day); + mo = bcd2bin(mo); + yr = bcd2bin(yr); + cent = bcd2bin(cent); + } + + /* we're trusting the FADT (see above) */ + if (!acpi_gbl_FADT.century) + /* If we're not trusting the FADT, we should at least make it + * right for _this_ century... ehm, what is _this_ century? + * + * TBD: + * ASAP: find piece of code in the kernel, e.g. star tracker driver, + * which we can trust to determine the century correctly. Atom + * watch driver would be nice, too... + * + * if that has not happened, change for first release in 2050: + * if (yr<50) + * yr += 2100; + * else + * yr += 2000; // current line of code + * + * if that has not happened either, please do on 2099/12/31:23:59:59 + * s/2000/2100 + * + */ + yr += 2000; + else + yr += cent * 100; + + seq_printf(seq, "%4.4u-", yr); + (mo > 12) ? seq_puts(seq, "**-") : seq_printf(seq, "%2.2u-", mo); + (day > 31) ? seq_puts(seq, "** ") : seq_printf(seq, "%2.2u ", day); + (hr > 23) ? seq_puts(seq, "**:") : seq_printf(seq, "%2.2u:", hr); + (min > 59) ? seq_puts(seq, "**:") : seq_printf(seq, "%2.2u:", min); + (sec > 59) ? seq_puts(seq, "**\n") : seq_printf(seq, "%2.2u\n", sec); + + return 0; +} + +static int acpi_system_alarm_open_fs(struct inode *inode, struct file *file) +{ + return single_open(file, acpi_system_alarm_seq_show, PDE(inode)->data); +} + +static int get_date_field(char **p, u32 * value) +{ + char *next = NULL; + char *string_end = NULL; + int result = -EINVAL; + + /* + * Try to find delimeter, only to insert null. The end of the + * string won't have one, but is still valid. + */ + if (*p == NULL) + return result; + + next = strpbrk(*p, "- :"); + if (next) + *next++ = '\0'; + + *value = simple_strtoul(*p, &string_end, 10); + + /* Signal success if we got a good digit */ + if (string_end != *p) + result = 0; + + if (next) + *p = next; + else + *p = NULL; + + return result; +} + +/* Read a possibly BCD register, always return binary */ +static u32 cmos_bcd_read(int offset, int rtc_control) +{ + u32 val = CMOS_READ(offset); + if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) + val = bcd2bin(val); + return val; +} + +/* Write binary value into possibly BCD register */ +static void cmos_bcd_write(u32 val, int offset, int rtc_control) +{ + if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) + val = bin2bcd(val); + CMOS_WRITE(val, offset); +} + +static ssize_t +acpi_system_write_alarm(struct file *file, + const char __user * buffer, size_t count, loff_t * ppos) +{ + int result = 0; + char alarm_string[30] = { '\0' }; + char *p = alarm_string; + u32 sec, min, hr, day, mo, yr; + int adjust = 0; + unsigned char rtc_control = 0; + + if (count > sizeof(alarm_string) - 1) + return -EINVAL; + + if (copy_from_user(alarm_string, buffer, count)) + return -EFAULT; + + alarm_string[count] = '\0'; + + /* check for time adjustment */ + if (alarm_string[0] == '+') { + p++; + adjust = 1; + } + + if ((result = get_date_field(&p, &yr))) + goto end; + if ((result = get_date_field(&p, &mo))) + goto end; + if ((result = get_date_field(&p, &day))) + goto end; + if ((result = get_date_field(&p, &hr))) + goto end; + if ((result = get_date_field(&p, &min))) + goto end; + if ((result = get_date_field(&p, &sec))) + goto end; + + spin_lock_irq(&rtc_lock); + + rtc_control = CMOS_READ(RTC_CONTROL); + + if (adjust) { + yr += cmos_bcd_read(RTC_YEAR, rtc_control); + mo += cmos_bcd_read(RTC_MONTH, rtc_control); + day += cmos_bcd_read(RTC_DAY_OF_MONTH, rtc_control); + hr += cmos_bcd_read(RTC_HOURS, rtc_control); + min += cmos_bcd_read(RTC_MINUTES, rtc_control); + sec += cmos_bcd_read(RTC_SECONDS, rtc_control); + } + + spin_unlock_irq(&rtc_lock); + + if (sec > 59) { + min += sec/60; + sec = sec%60; + } + if (min > 59) { + hr += min/60; + min = min%60; + } + if (hr > 23) { + day += hr/24; + hr = hr%24; + } + if (day > 31) { + mo += day/32; + day = day%32; + } + if (mo > 12) { + yr += mo/13; + mo = mo%13; + } + + spin_lock_irq(&rtc_lock); + /* + * Disable alarm interrupt before setting alarm timer or else + * when ACPI_EVENT_RTC is enabled, a spurious ACPI interrupt occurs + */ + rtc_control &= ~RTC_AIE; + CMOS_WRITE(rtc_control, RTC_CONTROL); + CMOS_READ(RTC_INTR_FLAGS); + + /* write the fields the rtc knows about */ + cmos_bcd_write(hr, RTC_HOURS_ALARM, rtc_control); + cmos_bcd_write(min, RTC_MINUTES_ALARM, rtc_control); + cmos_bcd_write(sec, RTC_SECONDS_ALARM, rtc_control); + + /* + * If the system supports an enhanced alarm it will have non-zero + * offsets into the CMOS RAM here -- which for some reason are pointing + * to the RTC area of memory. + */ + if (acpi_gbl_FADT.day_alarm) + cmos_bcd_write(day, acpi_gbl_FADT.day_alarm, rtc_control); + if (acpi_gbl_FADT.month_alarm) + cmos_bcd_write(mo, acpi_gbl_FADT.month_alarm, rtc_control); + if (acpi_gbl_FADT.century) { + if (adjust) + yr += cmos_bcd_read(acpi_gbl_FADT.century, rtc_control) * 100; + cmos_bcd_write(yr / 100, acpi_gbl_FADT.century, rtc_control); + } + /* enable the rtc alarm interrupt */ + rtc_control |= RTC_AIE; + CMOS_WRITE(rtc_control, RTC_CONTROL); + CMOS_READ(RTC_INTR_FLAGS); + + spin_unlock_irq(&rtc_lock); + + acpi_clear_event(ACPI_EVENT_RTC); + acpi_enable_event(ACPI_EVENT_RTC, 0); + + *ppos += count; + + result = 0; + end: + return result ? result : count; +} +#endif /* HAVE_ACPI_LEGACY_ALARM */ + +extern struct list_head acpi_wakeup_device_list; +extern spinlock_t acpi_device_lock; + +static int +acpi_system_wakeup_device_seq_show(struct seq_file *seq, void *offset) +{ + struct list_head *node, *next; + + seq_printf(seq, "Device\tS-state\t Status Sysfs node\n"); + + spin_lock(&acpi_device_lock); + list_for_each_safe(node, next, &acpi_wakeup_device_list) { + struct acpi_device *dev = + container_of(node, struct acpi_device, wakeup_list); + struct device *ldev; + + if (!dev->wakeup.flags.valid) + continue; + spin_unlock(&acpi_device_lock); + + ldev = acpi_get_physical_device(dev->handle); + seq_printf(seq, "%s\t S%d\t%c%-8s ", + dev->pnp.bus_id, + (u32) dev->wakeup.sleep_state, + dev->wakeup.flags.run_wake ? '*' : ' ', + dev->wakeup.state.enabled ? "enabled" : "disabled"); + if (ldev) + seq_printf(seq, "%s:%s", + ldev->bus ? ldev->bus->name : "no-bus", + dev_name(ldev)); + seq_printf(seq, "\n"); + put_device(ldev); + + spin_lock(&acpi_device_lock); + } + spin_unlock(&acpi_device_lock); + return 0; +} + +static void physical_device_enable_wakeup(struct acpi_device *adev) +{ + struct device *dev = acpi_get_physical_device(adev->handle); + + if (dev && device_can_wakeup(dev)) + device_set_wakeup_enable(dev, adev->wakeup.state.enabled); +} + +static ssize_t +acpi_system_write_wakeup_device(struct file *file, + const char __user * buffer, + size_t count, loff_t * ppos) +{ + struct list_head *node, *next; + char strbuf[5]; + char str[5] = ""; + int len = count; + struct acpi_device *found_dev = NULL; + + if (len > 4) + len = 4; + + if (copy_from_user(strbuf, buffer, len)) + return -EFAULT; + strbuf[len] = '\0'; + sscanf(strbuf, "%s", str); + + spin_lock(&acpi_device_lock); + list_for_each_safe(node, next, &acpi_wakeup_device_list) { + struct acpi_device *dev = + container_of(node, struct acpi_device, wakeup_list); + if (!dev->wakeup.flags.valid) + continue; + + if (!strncmp(dev->pnp.bus_id, str, 4)) { + dev->wakeup.state.enabled = + dev->wakeup.state.enabled ? 0 : 1; + found_dev = dev; + break; + } + } + if (found_dev) { + physical_device_enable_wakeup(found_dev); + list_for_each_safe(node, next, &acpi_wakeup_device_list) { + struct acpi_device *dev = container_of(node, + struct + acpi_device, + wakeup_list); + + if ((dev != found_dev) && + (dev->wakeup.gpe_number == + found_dev->wakeup.gpe_number) + && (dev->wakeup.gpe_device == + found_dev->wakeup.gpe_device)) { + printk(KERN_WARNING + "ACPI: '%s' and '%s' have the same GPE, " + "can't disable/enable one seperately\n", + dev->pnp.bus_id, found_dev->pnp.bus_id); + dev->wakeup.state.enabled = + found_dev->wakeup.state.enabled; + physical_device_enable_wakeup(dev); + } + } + } + spin_unlock(&acpi_device_lock); + return count; +} + +static int +acpi_system_wakeup_device_open_fs(struct inode *inode, struct file *file) +{ + return single_open(file, acpi_system_wakeup_device_seq_show, + PDE(inode)->data); +} + +static const struct file_operations acpi_system_wakeup_device_fops = { + .owner = THIS_MODULE, + .open = acpi_system_wakeup_device_open_fs, + .read = seq_read, + .write = acpi_system_write_wakeup_device, + .llseek = seq_lseek, + .release = single_release, +}; + +#ifdef CONFIG_ACPI_PROCFS +static const struct file_operations acpi_system_sleep_fops = { + .owner = THIS_MODULE, + .open = acpi_system_sleep_open_fs, + .read = seq_read, + .write = acpi_system_write_sleep, + .llseek = seq_lseek, + .release = single_release, +}; +#endif /* CONFIG_ACPI_PROCFS */ + +#ifdef HAVE_ACPI_LEGACY_ALARM +static const struct file_operations acpi_system_alarm_fops = { + .owner = THIS_MODULE, + .open = acpi_system_alarm_open_fs, + .read = seq_read, + .write = acpi_system_write_alarm, + .llseek = seq_lseek, + .release = single_release, +}; + +static u32 rtc_handler(void *context) +{ + acpi_clear_event(ACPI_EVENT_RTC); + acpi_disable_event(ACPI_EVENT_RTC, 0); + + return ACPI_INTERRUPT_HANDLED; +} +#endif /* HAVE_ACPI_LEGACY_ALARM */ + +static int __init acpi_sleep_proc_init(void) +{ + if (acpi_disabled) + return 0; + +#ifdef CONFIG_ACPI_PROCFS + /* 'sleep' [R/W] */ + proc_create("sleep", S_IFREG | S_IRUGO | S_IWUSR, + acpi_root_dir, &acpi_system_sleep_fops); +#endif /* CONFIG_ACPI_PROCFS */ + +#ifdef HAVE_ACPI_LEGACY_ALARM + /* 'alarm' [R/W] */ + proc_create("alarm", S_IFREG | S_IRUGO | S_IWUSR, + acpi_root_dir, &acpi_system_alarm_fops); + + acpi_install_fixed_event_handler(ACPI_EVENT_RTC, rtc_handler, NULL); + /* + * Disable the RTC event after installing RTC handler. + * Only when RTC alarm is set will it be enabled. + */ + acpi_clear_event(ACPI_EVENT_RTC); + acpi_disable_event(ACPI_EVENT_RTC, 0); +#endif /* HAVE_ACPI_LEGACY_ALARM */ + + /* 'wakeup device' [R/W] */ + proc_create("wakeup", S_IFREG | S_IRUGO | S_IWUSR, + acpi_root_dir, &acpi_system_wakeup_device_fops); + + return 0; +} + +late_initcall(acpi_sleep_proc_init); diff --git a/drivers/acpi/resources/Makefile b/drivers/acpi/resources/Makefile deleted file mode 100644 index 8de4f69dfa09..000000000000 --- a/drivers/acpi/resources/Makefile +++ /dev/null @@ -1,10 +0,0 @@ -# -# Makefile for all Linux ACPI interpreter subdirectories -# - -obj-y := rsaddr.o rscreate.o rsinfo.o rsio.o rslist.o rsmisc.o rsxface.o \ - rscalc.o rsirq.o rsmemory.o rsutils.o - -obj-$(ACPI_FUTURE_USAGE) += rsdump.o - -EXTRA_CFLAGS += $(ACPI_CFLAGS) diff --git a/drivers/acpi/resources/rsaddr.c b/drivers/acpi/resources/rsaddr.c deleted file mode 100644 index b4aba3aebcb8..000000000000 --- a/drivers/acpi/resources/rsaddr.c +++ /dev/null @@ -1,381 +0,0 @@ -/******************************************************************************* - * - * Module Name: rsaddr - Address resource descriptors (16/32/64) - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_RESOURCES -ACPI_MODULE_NAME("rsaddr") - -/******************************************************************************* - * - * acpi_rs_convert_address16 - All WORD (16-bit) address resources - * - ******************************************************************************/ -struct acpi_rsconvert_info acpi_rs_convert_address16[5] = { - {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS16, - ACPI_RS_SIZE(struct acpi_resource_address16), - ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address16)}, - - {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS16, - sizeof(struct aml_resource_address16), - 0}, - - /* Resource Type, General Flags, and Type-Specific Flags */ - - {ACPI_RSC_ADDRESS, 0, 0, 0}, - - /* - * These fields are contiguous in both the source and destination: - * Address Granularity - * Address Range Minimum - * Address Range Maximum - * Address Translation Offset - * Address Length - */ - {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.address16.granularity), - AML_OFFSET(address16.granularity), - 5}, - - /* Optional resource_source (Index and String) */ - - {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address16.resource_source), - 0, - sizeof(struct aml_resource_address16)} -}; - -/******************************************************************************* - * - * acpi_rs_convert_address32 - All DWORD (32-bit) address resources - * - ******************************************************************************/ - -struct acpi_rsconvert_info acpi_rs_convert_address32[5] = { - {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS32, - ACPI_RS_SIZE(struct acpi_resource_address32), - ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address32)}, - - {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS32, - sizeof(struct aml_resource_address32), - 0}, - - /* Resource Type, General Flags, and Type-Specific Flags */ - - {ACPI_RSC_ADDRESS, 0, 0, 0}, - - /* - * These fields are contiguous in both the source and destination: - * Address Granularity - * Address Range Minimum - * Address Range Maximum - * Address Translation Offset - * Address Length - */ - {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.address32.granularity), - AML_OFFSET(address32.granularity), - 5}, - - /* Optional resource_source (Index and String) */ - - {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address32.resource_source), - 0, - sizeof(struct aml_resource_address32)} -}; - -/******************************************************************************* - * - * acpi_rs_convert_address64 - All QWORD (64-bit) address resources - * - ******************************************************************************/ - -struct acpi_rsconvert_info acpi_rs_convert_address64[5] = { - {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS64, - ACPI_RS_SIZE(struct acpi_resource_address64), - ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address64)}, - - {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS64, - sizeof(struct aml_resource_address64), - 0}, - - /* Resource Type, General Flags, and Type-Specific Flags */ - - {ACPI_RSC_ADDRESS, 0, 0, 0}, - - /* - * These fields are contiguous in both the source and destination: - * Address Granularity - * Address Range Minimum - * Address Range Maximum - * Address Translation Offset - * Address Length - */ - {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.address64.granularity), - AML_OFFSET(address64.granularity), - 5}, - - /* Optional resource_source (Index and String) */ - - {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address64.resource_source), - 0, - sizeof(struct aml_resource_address64)} -}; - -/******************************************************************************* - * - * acpi_rs_convert_ext_address64 - All Extended (64-bit) address resources - * - ******************************************************************************/ - -struct acpi_rsconvert_info acpi_rs_convert_ext_address64[5] = { - {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64, - ACPI_RS_SIZE(struct acpi_resource_extended_address64), - ACPI_RSC_TABLE_SIZE(acpi_rs_convert_ext_address64)}, - - {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64, - sizeof(struct aml_resource_extended_address64), - 0}, - - /* Resource Type, General Flags, and Type-Specific Flags */ - - {ACPI_RSC_ADDRESS, 0, 0, 0}, - - /* Revision ID */ - - {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.ext_address64.revision_iD), - AML_OFFSET(ext_address64.revision_iD), - 1}, - /* - * These fields are contiguous in both the source and destination: - * Address Granularity - * Address Range Minimum - * Address Range Maximum - * Address Translation Offset - * Address Length - * Type-Specific Attribute - */ - {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.ext_address64.granularity), - AML_OFFSET(ext_address64.granularity), - 6} -}; - -/******************************************************************************* - * - * acpi_rs_convert_general_flags - Flags common to all address descriptors - * - ******************************************************************************/ - -static struct acpi_rsconvert_info acpi_rs_convert_general_flags[6] = { - {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.flags), - ACPI_RSC_TABLE_SIZE(acpi_rs_convert_general_flags)}, - - /* Resource Type (Memory, Io, bus_number, etc.) */ - - {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.address.resource_type), - AML_OFFSET(address.resource_type), - 1}, - - /* General Flags - Consume, Decode, min_fixed, max_fixed */ - - {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.producer_consumer), - AML_OFFSET(address.flags), - 0}, - - {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.decode), - AML_OFFSET(address.flags), - 1}, - - {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.min_address_fixed), - AML_OFFSET(address.flags), - 2}, - - {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.max_address_fixed), - AML_OFFSET(address.flags), - 3} -}; - -/******************************************************************************* - * - * acpi_rs_convert_mem_flags - Flags common to Memory address descriptors - * - ******************************************************************************/ - -static struct acpi_rsconvert_info acpi_rs_convert_mem_flags[5] = { - {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.specific_flags), - ACPI_RSC_TABLE_SIZE(acpi_rs_convert_mem_flags)}, - - /* Memory-specific flags */ - - {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.write_protect), - AML_OFFSET(address.specific_flags), - 0}, - - {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.caching), - AML_OFFSET(address.specific_flags), - 1}, - - {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.range_type), - AML_OFFSET(address.specific_flags), - 3}, - - {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.translation), - AML_OFFSET(address.specific_flags), - 5} -}; - -/******************************************************************************* - * - * acpi_rs_convert_io_flags - Flags common to I/O address descriptors - * - ******************************************************************************/ - -static struct acpi_rsconvert_info acpi_rs_convert_io_flags[4] = { - {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.specific_flags), - ACPI_RSC_TABLE_SIZE(acpi_rs_convert_io_flags)}, - - /* I/O-specific flags */ - - {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.io.range_type), - AML_OFFSET(address.specific_flags), - 0}, - - {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.io.translation), - AML_OFFSET(address.specific_flags), - 4}, - - {ACPI_RSC_1BITFLAG, - ACPI_RS_OFFSET(data.address.info.io.translation_type), - AML_OFFSET(address.specific_flags), - 5} -}; - -/******************************************************************************* - * - * FUNCTION: acpi_rs_get_address_common - * - * PARAMETERS: Resource - Pointer to the internal resource struct - * Aml - Pointer to the AML resource descriptor - * - * RETURN: TRUE if the resource_type field is OK, FALSE otherwise - * - * DESCRIPTION: Convert common flag fields from a raw AML resource descriptor - * to an internal resource descriptor - * - ******************************************************************************/ - -u8 -acpi_rs_get_address_common(struct acpi_resource *resource, - union aml_resource *aml) -{ - ACPI_FUNCTION_ENTRY(); - - /* Validate the Resource Type */ - - if ((aml->address.resource_type > 2) - && (aml->address.resource_type < 0xC0)) { - return (FALSE); - } - - /* Get the Resource Type and General Flags */ - - (void)acpi_rs_convert_aml_to_resource(resource, aml, - acpi_rs_convert_general_flags); - - /* Get the Type-Specific Flags (Memory and I/O descriptors only) */ - - if (resource->data.address.resource_type == ACPI_MEMORY_RANGE) { - (void)acpi_rs_convert_aml_to_resource(resource, aml, - acpi_rs_convert_mem_flags); - } else if (resource->data.address.resource_type == ACPI_IO_RANGE) { - (void)acpi_rs_convert_aml_to_resource(resource, aml, - acpi_rs_convert_io_flags); - } else { - /* Generic resource type, just grab the type_specific byte */ - - resource->data.address.info.type_specific = - aml->address.specific_flags; - } - - return (TRUE); -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_set_address_common - * - * PARAMETERS: Aml - Pointer to the AML resource descriptor - * Resource - Pointer to the internal resource struct - * - * RETURN: None - * - * DESCRIPTION: Convert common flag fields from a resource descriptor to an - * AML descriptor - * - ******************************************************************************/ - -void -acpi_rs_set_address_common(union aml_resource *aml, - struct acpi_resource *resource) -{ - ACPI_FUNCTION_ENTRY(); - - /* Set the Resource Type and General Flags */ - - (void)acpi_rs_convert_resource_to_aml(resource, aml, - acpi_rs_convert_general_flags); - - /* Set the Type-Specific Flags (Memory and I/O descriptors only) */ - - if (resource->data.address.resource_type == ACPI_MEMORY_RANGE) { - (void)acpi_rs_convert_resource_to_aml(resource, aml, - acpi_rs_convert_mem_flags); - } else if (resource->data.address.resource_type == ACPI_IO_RANGE) { - (void)acpi_rs_convert_resource_to_aml(resource, aml, - acpi_rs_convert_io_flags); - } else { - /* Generic resource type, just copy the type_specific byte */ - - aml->address.specific_flags = - resource->data.address.info.type_specific; - } -} diff --git a/drivers/acpi/resources/rscalc.c b/drivers/acpi/resources/rscalc.c deleted file mode 100644 index 4f2b186fe302..000000000000 --- a/drivers/acpi/resources/rscalc.c +++ /dev/null @@ -1,618 +0,0 @@ -/******************************************************************************* - * - * Module Name: rscalc - Calculate stream and list lengths - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include - -#define _COMPONENT ACPI_RESOURCES -ACPI_MODULE_NAME("rscalc") - -/* Local prototypes */ -static u8 acpi_rs_count_set_bits(u16 bit_field); - -static acpi_rs_length -acpi_rs_struct_option_length(struct acpi_resource_source *resource_source); - -static u32 -acpi_rs_stream_option_length(u32 resource_length, u32 minimum_total_length); - -/******************************************************************************* - * - * FUNCTION: acpi_rs_count_set_bits - * - * PARAMETERS: bit_field - Field in which to count bits - * - * RETURN: Number of bits set within the field - * - * DESCRIPTION: Count the number of bits set in a resource field. Used for - * (Short descriptor) interrupt and DMA lists. - * - ******************************************************************************/ - -static u8 acpi_rs_count_set_bits(u16 bit_field) -{ - u8 bits_set; - - ACPI_FUNCTION_ENTRY(); - - for (bits_set = 0; bit_field; bits_set++) { - - /* Zero the least significant bit that is set */ - - bit_field &= (u16) (bit_field - 1); - } - - return bits_set; -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_struct_option_length - * - * PARAMETERS: resource_source - Pointer to optional descriptor field - * - * RETURN: Status - * - * DESCRIPTION: Common code to handle optional resource_source_index and - * resource_source fields in some Large descriptors. Used during - * list-to-stream conversion - * - ******************************************************************************/ - -static acpi_rs_length -acpi_rs_struct_option_length(struct acpi_resource_source *resource_source) -{ - ACPI_FUNCTION_ENTRY(); - - /* - * If the resource_source string is valid, return the size of the string - * (string_length includes the NULL terminator) plus the size of the - * resource_source_index (1). - */ - if (resource_source->string_ptr) { - return ((acpi_rs_length) (resource_source->string_length + 1)); - } - - return (0); -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_stream_option_length - * - * PARAMETERS: resource_length - Length from the resource header - * minimum_total_length - Minimum length of this resource, before - * any optional fields. Includes header size - * - * RETURN: Length of optional string (0 if no string present) - * - * DESCRIPTION: Common code to handle optional resource_source_index and - * resource_source fields in some Large descriptors. Used during - * stream-to-list conversion - * - ******************************************************************************/ - -static u32 -acpi_rs_stream_option_length(u32 resource_length, - u32 minimum_aml_resource_length) -{ - u32 string_length = 0; - - ACPI_FUNCTION_ENTRY(); - - /* - * The resource_source_index and resource_source are optional elements of some - * Large-type resource descriptors. - */ - - /* - * If the length of the actual resource descriptor is greater than the ACPI - * spec-defined minimum length, it means that a resource_source_index exists - * and is followed by a (required) null terminated string. The string length - * (including the null terminator) is the resource length minus the minimum - * length, minus one byte for the resource_source_index itself. - */ - if (resource_length > minimum_aml_resource_length) { - - /* Compute the length of the optional string */ - - string_length = - resource_length - minimum_aml_resource_length - 1; - } - - /* - * Round the length up to a multiple of the native word in order to - * guarantee that the entire resource descriptor is native word aligned - */ - return ((u32) ACPI_ROUND_UP_TO_NATIVE_WORD(string_length)); -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_get_aml_length - * - * PARAMETERS: Resource - Pointer to the resource linked list - * size_needed - Where the required size is returned - * - * RETURN: Status - * - * DESCRIPTION: Takes a linked list of internal resource descriptors and - * calculates the size buffer needed to hold the corresponding - * external resource byte stream. - * - ******************************************************************************/ - -acpi_status -acpi_rs_get_aml_length(struct acpi_resource * resource, acpi_size * size_needed) -{ - acpi_size aml_size_needed = 0; - acpi_rs_length total_size; - - ACPI_FUNCTION_TRACE(rs_get_aml_length); - - /* Traverse entire list of internal resource descriptors */ - - while (resource) { - - /* Validate the descriptor type */ - - if (resource->type > ACPI_RESOURCE_TYPE_MAX) { - return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE); - } - - /* Get the base size of the (external stream) resource descriptor */ - - total_size = acpi_gbl_aml_resource_sizes[resource->type]; - - /* - * Augment the base size for descriptors with optional and/or - * variable-length fields - */ - switch (resource->type) { - case ACPI_RESOURCE_TYPE_IRQ: - - /* Length can be 3 or 2 */ - - if (resource->data.irq.descriptor_length == 2) { - total_size--; - } - break; - - case ACPI_RESOURCE_TYPE_START_DEPENDENT: - - /* Length can be 1 or 0 */ - - if (resource->data.irq.descriptor_length == 0) { - total_size--; - } - break; - - case ACPI_RESOURCE_TYPE_VENDOR: - /* - * Vendor Defined Resource: - * For a Vendor Specific resource, if the Length is between 1 and 7 - * it will be created as a Small Resource data type, otherwise it - * is a Large Resource data type. - */ - if (resource->data.vendor.byte_length > 7) { - - /* Base size of a Large resource descriptor */ - - total_size = - sizeof(struct aml_resource_large_header); - } - - /* Add the size of the vendor-specific data */ - - total_size = (acpi_rs_length) - (total_size + resource->data.vendor.byte_length); - break; - - case ACPI_RESOURCE_TYPE_END_TAG: - /* - * End Tag: - * We are done -- return the accumulated total size. - */ - *size_needed = aml_size_needed + total_size; - - /* Normal exit */ - - return_ACPI_STATUS(AE_OK); - - case ACPI_RESOURCE_TYPE_ADDRESS16: - /* - * 16-Bit Address Resource: - * Add the size of the optional resource_source info - */ - total_size = (acpi_rs_length) - (total_size + - acpi_rs_struct_option_length(&resource->data. - address16. - resource_source)); - break; - - case ACPI_RESOURCE_TYPE_ADDRESS32: - /* - * 32-Bit Address Resource: - * Add the size of the optional resource_source info - */ - total_size = (acpi_rs_length) - (total_size + - acpi_rs_struct_option_length(&resource->data. - address32. - resource_source)); - break; - - case ACPI_RESOURCE_TYPE_ADDRESS64: - /* - * 64-Bit Address Resource: - * Add the size of the optional resource_source info - */ - total_size = (acpi_rs_length) - (total_size + - acpi_rs_struct_option_length(&resource->data. - address64. - resource_source)); - break; - - case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: - /* - * Extended IRQ Resource: - * Add the size of each additional optional interrupt beyond the - * required 1 (4 bytes for each u32 interrupt number) - */ - total_size = (acpi_rs_length) - (total_size + - ((resource->data.extended_irq.interrupt_count - - 1) * 4) + - /* Add the size of the optional resource_source info */ - acpi_rs_struct_option_length(&resource->data. - extended_irq. - resource_source)); - break; - - default: - break; - } - - /* Update the total */ - - aml_size_needed += total_size; - - /* Point to the next object */ - - resource = - ACPI_ADD_PTR(struct acpi_resource, resource, - resource->length); - } - - /* Did not find an end_tag resource descriptor */ - - return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG); -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_get_list_length - * - * PARAMETERS: aml_buffer - Pointer to the resource byte stream - * aml_buffer_length - Size of aml_buffer - * size_needed - Where the size needed is returned - * - * RETURN: Status - * - * DESCRIPTION: Takes an external resource byte stream and calculates the size - * buffer needed to hold the corresponding internal resource - * descriptor linked list. - * - ******************************************************************************/ - -acpi_status -acpi_rs_get_list_length(u8 * aml_buffer, - u32 aml_buffer_length, acpi_size * size_needed) -{ - acpi_status status; - u8 *end_aml; - u8 *buffer; - u32 buffer_size; - u16 temp16; - u16 resource_length; - u32 extra_struct_bytes; - u8 resource_index; - u8 minimum_aml_resource_length; - - ACPI_FUNCTION_TRACE(rs_get_list_length); - - *size_needed = 0; - end_aml = aml_buffer + aml_buffer_length; - - /* Walk the list of AML resource descriptors */ - - while (aml_buffer < end_aml) { - - /* Validate the Resource Type and Resource Length */ - - status = acpi_ut_validate_resource(aml_buffer, &resource_index); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Get the resource length and base (minimum) AML size */ - - resource_length = acpi_ut_get_resource_length(aml_buffer); - minimum_aml_resource_length = - acpi_gbl_resource_aml_sizes[resource_index]; - - /* - * Augment the size for descriptors with optional - * and/or variable length fields - */ - extra_struct_bytes = 0; - buffer = - aml_buffer + acpi_ut_get_resource_header_length(aml_buffer); - - switch (acpi_ut_get_resource_type(aml_buffer)) { - case ACPI_RESOURCE_NAME_IRQ: - /* - * IRQ Resource: - * Get the number of bits set in the 16-bit IRQ mask - */ - ACPI_MOVE_16_TO_16(&temp16, buffer); - extra_struct_bytes = acpi_rs_count_set_bits(temp16); - break; - - case ACPI_RESOURCE_NAME_DMA: - /* - * DMA Resource: - * Get the number of bits set in the 8-bit DMA mask - */ - extra_struct_bytes = acpi_rs_count_set_bits(*buffer); - break; - - case ACPI_RESOURCE_NAME_VENDOR_SMALL: - case ACPI_RESOURCE_NAME_VENDOR_LARGE: - /* - * Vendor Resource: - * Get the number of vendor data bytes - */ - extra_struct_bytes = resource_length; - break; - - case ACPI_RESOURCE_NAME_END_TAG: - /* - * End Tag: - * This is the normal exit, add size of end_tag - */ - *size_needed += ACPI_RS_SIZE_MIN; - return_ACPI_STATUS(AE_OK); - - case ACPI_RESOURCE_NAME_ADDRESS32: - case ACPI_RESOURCE_NAME_ADDRESS16: - case ACPI_RESOURCE_NAME_ADDRESS64: - /* - * Address Resource: - * Add the size of the optional resource_source - */ - extra_struct_bytes = - acpi_rs_stream_option_length(resource_length, - minimum_aml_resource_length); - break; - - case ACPI_RESOURCE_NAME_EXTENDED_IRQ: - /* - * Extended IRQ Resource: - * Using the interrupt_table_length, add 4 bytes for each additional - * interrupt. Note: at least one interrupt is required and is - * included in the minimum descriptor size (reason for the -1) - */ - extra_struct_bytes = (buffer[1] - 1) * sizeof(u32); - - /* Add the size of the optional resource_source */ - - extra_struct_bytes += - acpi_rs_stream_option_length(resource_length - - extra_struct_bytes, - minimum_aml_resource_length); - break; - - default: - break; - } - - /* - * Update the required buffer size for the internal descriptor structs - * - * Important: Round the size up for the appropriate alignment. This - * is a requirement on IA64. - */ - buffer_size = acpi_gbl_resource_struct_sizes[resource_index] + - extra_struct_bytes; - buffer_size = (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(buffer_size); - - *size_needed += buffer_size; - - ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, - "Type %.2X, AmlLength %.2X InternalLength %.2X\n", - acpi_ut_get_resource_type(aml_buffer), - acpi_ut_get_descriptor_length(aml_buffer), - buffer_size)); - - /* - * Point to the next resource within the AML stream using the length - * contained in the resource descriptor header - */ - aml_buffer += acpi_ut_get_descriptor_length(aml_buffer); - } - - /* Did not find an end_tag resource descriptor */ - - return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG); -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_get_pci_routing_table_length - * - * PARAMETERS: package_object - Pointer to the package object - * buffer_size_needed - u32 pointer of the size buffer - * needed to properly return the - * parsed data - * - * RETURN: Status - * - * DESCRIPTION: Given a package representing a PCI routing table, this - * calculates the size of the corresponding linked list of - * descriptions. - * - ******************************************************************************/ - -acpi_status -acpi_rs_get_pci_routing_table_length(union acpi_operand_object *package_object, - acpi_size * buffer_size_needed) -{ - u32 number_of_elements; - acpi_size temp_size_needed = 0; - union acpi_operand_object **top_object_list; - u32 index; - union acpi_operand_object *package_element; - union acpi_operand_object **sub_object_list; - u8 name_found; - u32 table_index; - - ACPI_FUNCTION_TRACE(rs_get_pci_routing_table_length); - - number_of_elements = package_object->package.count; - - /* - * Calculate the size of the return buffer. - * The base size is the number of elements * the sizes of the - * structures. Additional space for the strings is added below. - * The minus one is to subtract the size of the u8 Source[1] - * member because it is added below. - * - * But each PRT_ENTRY structure has a pointer to a string and - * the size of that string must be found. - */ - top_object_list = package_object->package.elements; - - for (index = 0; index < number_of_elements; index++) { - - /* Dereference the sub-package */ - - package_element = *top_object_list; - - /* - * The sub_object_list will now point to an array of the - * four IRQ elements: Address, Pin, Source and source_index - */ - sub_object_list = package_element->package.elements; - - /* Scan the irq_table_elements for the Source Name String */ - - name_found = FALSE; - - for (table_index = 0; table_index < 4 && !name_found; - table_index++) { - if (*sub_object_list && /* Null object allowed */ - ((ACPI_TYPE_STRING == - ACPI_GET_OBJECT_TYPE(*sub_object_list)) || - ((ACPI_TYPE_LOCAL_REFERENCE == - ACPI_GET_OBJECT_TYPE(*sub_object_list)) && - ((*sub_object_list)->reference.class == - ACPI_REFCLASS_NAME)))) { - name_found = TRUE; - } else { - /* Look at the next element */ - - sub_object_list++; - } - } - - temp_size_needed += (sizeof(struct acpi_pci_routing_table) - 4); - - /* Was a String type found? */ - - if (name_found) { - if (ACPI_GET_OBJECT_TYPE(*sub_object_list) == - ACPI_TYPE_STRING) { - /* - * The length String.Length field does not include the - * terminating NULL, add 1 - */ - temp_size_needed += ((acpi_size) - (*sub_object_list)->string. - length + 1); - } else { - temp_size_needed += - acpi_ns_get_pathname_length((*sub_object_list)->reference.node); - if (!temp_size_needed) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - } - } else { - /* - * If no name was found, then this is a NULL, which is - * translated as a u32 zero. - */ - temp_size_needed += sizeof(u32); - } - - /* Round up the size since each element must be aligned */ - - temp_size_needed = ACPI_ROUND_UP_TO_64BIT(temp_size_needed); - - /* Point to the next union acpi_operand_object */ - - top_object_list++; - } - - /* - * Add an extra element to the end of the list, essentially a - * NULL terminator - */ - *buffer_size_needed = - temp_size_needed + sizeof(struct acpi_pci_routing_table); - return_ACPI_STATUS(AE_OK); -} diff --git a/drivers/acpi/resources/rscreate.c b/drivers/acpi/resources/rscreate.c deleted file mode 100644 index 3ca606974d51..000000000000 --- a/drivers/acpi/resources/rscreate.c +++ /dev/null @@ -1,468 +0,0 @@ -/******************************************************************************* - * - * Module Name: rscreate - Create resource lists/tables - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include - -#define _COMPONENT ACPI_RESOURCES -ACPI_MODULE_NAME("rscreate") - -/******************************************************************************* - * - * FUNCTION: acpi_rs_create_resource_list - * - * PARAMETERS: aml_buffer - Pointer to the resource byte stream - * output_buffer - Pointer to the user's buffer - * - * RETURN: Status: AE_OK if okay, else a valid acpi_status code - * If output_buffer is not large enough, output_buffer_length - * indicates how large output_buffer should be, else it - * indicates how may u8 elements of output_buffer are valid. - * - * DESCRIPTION: Takes the byte stream returned from a _CRS, _PRS control method - * execution and parses the stream to create a linked list - * of device resources. - * - ******************************************************************************/ -acpi_status -acpi_rs_create_resource_list(union acpi_operand_object *aml_buffer, - struct acpi_buffer *output_buffer) -{ - - acpi_status status; - u8 *aml_start; - acpi_size list_size_needed = 0; - u32 aml_buffer_length; - void *resource; - - ACPI_FUNCTION_TRACE(rs_create_resource_list); - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "AmlBuffer = %p\n", aml_buffer)); - - /* Params already validated, so we don't re-validate here */ - - aml_buffer_length = aml_buffer->buffer.length; - aml_start = aml_buffer->buffer.pointer; - - /* - * Pass the aml_buffer into a module that can calculate - * the buffer size needed for the linked list - */ - status = acpi_rs_get_list_length(aml_start, aml_buffer_length, - &list_size_needed); - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Status=%X ListSizeNeeded=%X\n", - status, (u32) list_size_needed)); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Validate/Allocate/Clear caller buffer */ - - status = acpi_ut_initialize_buffer(output_buffer, list_size_needed); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Do the conversion */ - - resource = output_buffer->pointer; - status = acpi_ut_walk_aml_resources(aml_start, aml_buffer_length, - acpi_rs_convert_aml_to_resources, - &resource); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "OutputBuffer %p Length %X\n", - output_buffer->pointer, (u32) output_buffer->length)); - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_create_pci_routing_table - * - * PARAMETERS: package_object - Pointer to an union acpi_operand_object - * package - * output_buffer - Pointer to the user's buffer - * - * RETURN: Status AE_OK if okay, else a valid acpi_status code. - * If the output_buffer is too small, the error will be - * AE_BUFFER_OVERFLOW and output_buffer->Length will point - * to the size buffer needed. - * - * DESCRIPTION: Takes the union acpi_operand_object package and creates a - * linked list of PCI interrupt descriptions - * - * NOTE: It is the caller's responsibility to ensure that the start of the - * output buffer is aligned properly (if necessary). - * - ******************************************************************************/ - -acpi_status -acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, - struct acpi_buffer *output_buffer) -{ - u8 *buffer; - union acpi_operand_object **top_object_list; - union acpi_operand_object **sub_object_list; - union acpi_operand_object *obj_desc; - acpi_size buffer_size_needed = 0; - u32 number_of_elements; - u32 index; - struct acpi_pci_routing_table *user_prt; - struct acpi_namespace_node *node; - acpi_status status; - struct acpi_buffer path_buffer; - - ACPI_FUNCTION_TRACE(rs_create_pci_routing_table); - - /* Params already validated, so we don't re-validate here */ - - /* Get the required buffer length */ - - status = acpi_rs_get_pci_routing_table_length(package_object, - &buffer_size_needed); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "BufferSizeNeeded = %X\n", - (u32) buffer_size_needed)); - - /* Validate/Allocate/Clear caller buffer */ - - status = acpi_ut_initialize_buffer(output_buffer, buffer_size_needed); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * Loop through the ACPI_INTERNAL_OBJECTS - Each object should be a - * package that in turn contains an acpi_integer Address, a u8 Pin, - * a Name, and a u8 source_index. - */ - top_object_list = package_object->package.elements; - number_of_elements = package_object->package.count; - buffer = output_buffer->pointer; - user_prt = ACPI_CAST_PTR(struct acpi_pci_routing_table, buffer); - - for (index = 0; index < number_of_elements; index++) { - int source_name_index = 2; - int source_index_index = 3; - - /* - * Point user_prt past this current structure - * - * NOTE: On the first iteration, user_prt->Length will - * be zero because we cleared the return buffer earlier - */ - buffer += user_prt->length; - user_prt = ACPI_CAST_PTR(struct acpi_pci_routing_table, buffer); - - /* - * Fill in the Length field with the information we have at this point. - * The minus four is to subtract the size of the u8 Source[4] member - * because it is added below. - */ - user_prt->length = (sizeof(struct acpi_pci_routing_table) - 4); - - /* Each element of the top-level package must also be a package */ - - if (ACPI_GET_OBJECT_TYPE(*top_object_list) != ACPI_TYPE_PACKAGE) { - ACPI_ERROR((AE_INFO, - "(PRT[%X]) Need sub-package, found %s", - index, - acpi_ut_get_object_type_name - (*top_object_list))); - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - - /* Each sub-package must be of length 4 */ - - if ((*top_object_list)->package.count != 4) { - ACPI_ERROR((AE_INFO, - "(PRT[%X]) Need package of length 4, found length %d", - index, (*top_object_list)->package.count)); - return_ACPI_STATUS(AE_AML_PACKAGE_LIMIT); - } - - /* - * Dereference the sub-package. - * The sub_object_list will now point to an array of the four IRQ - * elements: [Address, Pin, Source, source_index] - */ - sub_object_list = (*top_object_list)->package.elements; - - /* 1) First subobject: Dereference the PRT.Address */ - - obj_desc = sub_object_list[0]; - if (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_INTEGER) { - ACPI_ERROR((AE_INFO, - "(PRT[%X].Address) Need Integer, found %s", - index, - acpi_ut_get_object_type_name(obj_desc))); - return_ACPI_STATUS(AE_BAD_DATA); - } - - user_prt->address = obj_desc->integer.value; - - /* 2) Second subobject: Dereference the PRT.Pin */ - - obj_desc = sub_object_list[1]; - if (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_INTEGER) { - ACPI_ERROR((AE_INFO, - "(PRT[%X].Pin) Need Integer, found %s", - index, - acpi_ut_get_object_type_name(obj_desc))); - return_ACPI_STATUS(AE_BAD_DATA); - } - - /* - * If BIOS erroneously reversed the _PRT source_name and source_index, - * then reverse them back. - */ - if (ACPI_GET_OBJECT_TYPE(sub_object_list[3]) != - ACPI_TYPE_INTEGER) { - if (acpi_gbl_enable_interpreter_slack) { - source_name_index = 3; - source_index_index = 2; - printk(KERN_WARNING - "ACPI: Handling Garbled _PRT entry\n"); - } else { - ACPI_ERROR((AE_INFO, - "(PRT[%X].source_index) Need Integer, found %s", - index, - acpi_ut_get_object_type_name - (sub_object_list[3]))); - return_ACPI_STATUS(AE_BAD_DATA); - } - } - - user_prt->pin = (u32) obj_desc->integer.value; - - /* - * If the BIOS has erroneously reversed the _PRT source_name (index 2) - * and the source_index (index 3), fix it. _PRT is important enough to - * workaround this BIOS error. This also provides compatibility with - * other ACPI implementations. - */ - obj_desc = sub_object_list[3]; - if (!obj_desc - || (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_INTEGER)) { - sub_object_list[3] = sub_object_list[2]; - sub_object_list[2] = obj_desc; - - ACPI_WARNING((AE_INFO, - "(PRT[%X].Source) SourceName and SourceIndex are reversed, fixed", - index)); - } - - /* - * 3) Third subobject: Dereference the PRT.source_name - * The name may be unresolved (slack mode), so allow a null object - */ - obj_desc = sub_object_list[source_name_index]; - if (obj_desc) { - switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { - case ACPI_TYPE_LOCAL_REFERENCE: - - if (obj_desc->reference.class != - ACPI_REFCLASS_NAME) { - ACPI_ERROR((AE_INFO, - "(PRT[%X].Source) Need name, found Reference Class %X", - index, - obj_desc->reference.class)); - return_ACPI_STATUS(AE_BAD_DATA); - } - - node = obj_desc->reference.node; - - /* Use *remaining* length of the buffer as max for pathname */ - - path_buffer.length = output_buffer->length - - (u32) ((u8 *) user_prt->source - - (u8 *) output_buffer->pointer); - path_buffer.pointer = user_prt->source; - - status = - acpi_ns_handle_to_pathname((acpi_handle) - node, - &path_buffer); - - /* +1 to include null terminator */ - - user_prt->length += - (u32) ACPI_STRLEN(user_prt->source) + 1; - break; - - case ACPI_TYPE_STRING: - - ACPI_STRCPY(user_prt->source, - obj_desc->string.pointer); - - /* - * Add to the Length field the length of the string - * (add 1 for terminator) - */ - user_prt->length += obj_desc->string.length + 1; - break; - - case ACPI_TYPE_INTEGER: - /* - * If this is a number, then the Source Name is NULL, since the - * entire buffer was zeroed out, we can leave this alone. - * - * Add to the Length field the length of the u32 NULL - */ - user_prt->length += sizeof(u32); - break; - - default: - - ACPI_ERROR((AE_INFO, - "(PRT[%X].Source) Need Ref/String/Integer, found %s", - index, - acpi_ut_get_object_type_name - (obj_desc))); - return_ACPI_STATUS(AE_BAD_DATA); - } - } - - /* Now align the current length */ - - user_prt->length = - (u32) ACPI_ROUND_UP_TO_64BIT(user_prt->length); - - /* 4) Fourth subobject: Dereference the PRT.source_index */ - - obj_desc = sub_object_list[source_index_index]; - if (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_INTEGER) { - ACPI_ERROR((AE_INFO, - "(PRT[%X].SourceIndex) Need Integer, found %s", - index, - acpi_ut_get_object_type_name(obj_desc))); - return_ACPI_STATUS(AE_BAD_DATA); - } - - user_prt->source_index = (u32) obj_desc->integer.value; - - /* Point to the next union acpi_operand_object in the top level package */ - - top_object_list++; - } - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "OutputBuffer %p Length %X\n", - output_buffer->pointer, (u32) output_buffer->length)); - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_create_aml_resources - * - * PARAMETERS: linked_list_buffer - Pointer to the resource linked list - * output_buffer - Pointer to the user's buffer - * - * RETURN: Status AE_OK if okay, else a valid acpi_status code. - * If the output_buffer is too small, the error will be - * AE_BUFFER_OVERFLOW and output_buffer->Length will point - * to the size buffer needed. - * - * DESCRIPTION: Takes the linked list of device resources and - * creates a bytestream to be used as input for the - * _SRS control method. - * - ******************************************************************************/ - -acpi_status -acpi_rs_create_aml_resources(struct acpi_resource *linked_list_buffer, - struct acpi_buffer *output_buffer) -{ - acpi_status status; - acpi_size aml_size_needed = 0; - - ACPI_FUNCTION_TRACE(rs_create_aml_resources); - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "LinkedListBuffer = %p\n", - linked_list_buffer)); - - /* - * Params already validated, so we don't re-validate here - * - * Pass the linked_list_buffer into a module that calculates - * the buffer size needed for the byte stream. - */ - status = acpi_rs_get_aml_length(linked_list_buffer, &aml_size_needed); - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "AmlSizeNeeded=%X, %s\n", - (u32) aml_size_needed, - acpi_format_exception(status))); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Validate/Allocate/Clear caller buffer */ - - status = acpi_ut_initialize_buffer(output_buffer, aml_size_needed); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Do the conversion */ - - status = - acpi_rs_convert_resources_to_aml(linked_list_buffer, - aml_size_needed, - output_buffer->pointer); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "OutputBuffer %p Length %X\n", - output_buffer->pointer, (u32) output_buffer->length)); - return_ACPI_STATUS(AE_OK); -} diff --git a/drivers/acpi/resources/rsdump.c b/drivers/acpi/resources/rsdump.c deleted file mode 100644 index 936a59be39fa..000000000000 --- a/drivers/acpi/resources/rsdump.c +++ /dev/null @@ -1,771 +0,0 @@ -/******************************************************************************* - * - * Module Name: rsdump - Functions to display the resource structures. - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_RESOURCES -ACPI_MODULE_NAME("rsdump") -#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) -/* Local prototypes */ -static void acpi_rs_out_string(char *title, char *value); - -static void acpi_rs_out_integer8(char *title, u8 value); - -static void acpi_rs_out_integer16(char *title, u16 value); - -static void acpi_rs_out_integer32(char *title, u32 value); - -static void acpi_rs_out_integer64(char *title, u64 value); - -static void acpi_rs_out_title(char *title); - -static void acpi_rs_dump_byte_list(u16 length, u8 * data); - -static void acpi_rs_dump_dword_list(u8 length, u32 * data); - -static void acpi_rs_dump_short_byte_list(u8 length, u8 * data); - -static void -acpi_rs_dump_resource_source(struct acpi_resource_source *resource_source); - -static void acpi_rs_dump_address_common(union acpi_resource_data *resource); - -static void -acpi_rs_dump_descriptor(void *resource, struct acpi_rsdump_info *table); - -#define ACPI_RSD_OFFSET(f) (u8) ACPI_OFFSET (union acpi_resource_data,f) -#define ACPI_PRT_OFFSET(f) (u8) ACPI_OFFSET (struct acpi_pci_routing_table,f) -#define ACPI_RSD_TABLE_SIZE(name) (sizeof(name) / sizeof (struct acpi_rsdump_info)) - -/******************************************************************************* - * - * Resource Descriptor info tables - * - * Note: The first table entry must be a Title or Literal and must contain - * the table length (number of table entries) - * - ******************************************************************************/ - -struct acpi_rsdump_info acpi_rs_dump_irq[7] = { - {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_irq), "IRQ", NULL}, - {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(irq.descriptor_length), - "Descriptor Length", NULL}, - {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(irq.triggering), "Triggering", - acpi_gbl_he_decode}, - {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(irq.polarity), "Polarity", - acpi_gbl_ll_decode}, - {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(irq.sharable), "Sharing", - acpi_gbl_shr_decode}, - {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(irq.interrupt_count), - "Interrupt Count", NULL}, - {ACPI_RSD_SHORTLIST, ACPI_RSD_OFFSET(irq.interrupts[0]), - "Interrupt List", NULL} -}; - -struct acpi_rsdump_info acpi_rs_dump_dma[6] = { - {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_dma), "DMA", NULL}, - {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(dma.type), "Speed", - acpi_gbl_typ_decode}, - {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(dma.bus_master), "Mastering", - acpi_gbl_bm_decode}, - {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(dma.transfer), "Transfer Type", - acpi_gbl_siz_decode}, - {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(dma.channel_count), "Channel Count", - NULL}, - {ACPI_RSD_SHORTLIST, ACPI_RSD_OFFSET(dma.channels[0]), "Channel List", - NULL} -}; - -struct acpi_rsdump_info acpi_rs_dump_start_dpf[4] = { - {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_start_dpf), - "Start-Dependent-Functions", NULL}, - {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(start_dpf.descriptor_length), - "Descriptor Length", NULL}, - {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(start_dpf.compatibility_priority), - "Compatibility Priority", acpi_gbl_config_decode}, - {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(start_dpf.performance_robustness), - "Performance/Robustness", acpi_gbl_config_decode} -}; - -struct acpi_rsdump_info acpi_rs_dump_end_dpf[1] = { - {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_end_dpf), - "End-Dependent-Functions", NULL} -}; - -struct acpi_rsdump_info acpi_rs_dump_io[6] = { - {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_io), "I/O", NULL}, - {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(io.io_decode), "Address Decoding", - acpi_gbl_io_decode}, - {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(io.minimum), "Address Minimum", NULL}, - {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(io.maximum), "Address Maximum", NULL}, - {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(io.alignment), "Alignment", NULL}, - {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(io.address_length), "Address Length", - NULL} -}; - -struct acpi_rsdump_info acpi_rs_dump_fixed_io[3] = { - {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_fixed_io), - "Fixed I/O", NULL}, - {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(fixed_io.address), "Address", NULL}, - {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(fixed_io.address_length), - "Address Length", NULL} -}; - -struct acpi_rsdump_info acpi_rs_dump_vendor[3] = { - {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_vendor), - "Vendor Specific", NULL}, - {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(vendor.byte_length), "Length", NULL}, - {ACPI_RSD_LONGLIST, ACPI_RSD_OFFSET(vendor.byte_data[0]), "Vendor Data", - NULL} -}; - -struct acpi_rsdump_info acpi_rs_dump_end_tag[1] = { - {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_end_tag), "EndTag", - NULL} -}; - -struct acpi_rsdump_info acpi_rs_dump_memory24[6] = { - {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_memory24), - "24-Bit Memory Range", NULL}, - {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(memory24.write_protect), - "Write Protect", acpi_gbl_rw_decode}, - {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(memory24.minimum), "Address Minimum", - NULL}, - {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(memory24.maximum), "Address Maximum", - NULL}, - {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(memory24.alignment), "Alignment", - NULL}, - {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(memory24.address_length), - "Address Length", NULL} -}; - -struct acpi_rsdump_info acpi_rs_dump_memory32[6] = { - {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_memory32), - "32-Bit Memory Range", NULL}, - {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(memory32.write_protect), - "Write Protect", acpi_gbl_rw_decode}, - {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(memory32.minimum), "Address Minimum", - NULL}, - {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(memory32.maximum), "Address Maximum", - NULL}, - {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(memory32.alignment), "Alignment", - NULL}, - {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(memory32.address_length), - "Address Length", NULL} -}; - -struct acpi_rsdump_info acpi_rs_dump_fixed_memory32[4] = { - {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_fixed_memory32), - "32-Bit Fixed Memory Range", NULL}, - {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(fixed_memory32.write_protect), - "Write Protect", acpi_gbl_rw_decode}, - {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(fixed_memory32.address), "Address", - NULL}, - {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(fixed_memory32.address_length), - "Address Length", NULL} -}; - -struct acpi_rsdump_info acpi_rs_dump_address16[8] = { - {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_address16), - "16-Bit WORD Address Space", NULL}, - {ACPI_RSD_ADDRESS, 0, NULL, NULL}, - {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.granularity), "Granularity", - NULL}, - {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.minimum), "Address Minimum", - NULL}, - {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.maximum), "Address Maximum", - NULL}, - {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.translation_offset), - "Translation Offset", NULL}, - {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.address_length), - "Address Length", NULL}, - {ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(address16.resource_source), NULL, NULL} -}; - -struct acpi_rsdump_info acpi_rs_dump_address32[8] = { - {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_address32), - "32-Bit DWORD Address Space", NULL}, - {ACPI_RSD_ADDRESS, 0, NULL, NULL}, - {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.granularity), "Granularity", - NULL}, - {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.minimum), "Address Minimum", - NULL}, - {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.maximum), "Address Maximum", - NULL}, - {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.translation_offset), - "Translation Offset", NULL}, - {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.address_length), - "Address Length", NULL}, - {ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(address32.resource_source), NULL, NULL} -}; - -struct acpi_rsdump_info acpi_rs_dump_address64[8] = { - {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_address64), - "64-Bit QWORD Address Space", NULL}, - {ACPI_RSD_ADDRESS, 0, NULL, NULL}, - {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.granularity), "Granularity", - NULL}, - {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.minimum), "Address Minimum", - NULL}, - {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.maximum), "Address Maximum", - NULL}, - {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.translation_offset), - "Translation Offset", NULL}, - {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.address_length), - "Address Length", NULL}, - {ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(address64.resource_source), NULL, NULL} -}; - -struct acpi_rsdump_info acpi_rs_dump_ext_address64[8] = { - {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_ext_address64), - "64-Bit Extended Address Space", NULL}, - {ACPI_RSD_ADDRESS, 0, NULL, NULL}, - {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.granularity), - "Granularity", NULL}, - {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.minimum), - "Address Minimum", NULL}, - {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.maximum), - "Address Maximum", NULL}, - {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.translation_offset), - "Translation Offset", NULL}, - {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.address_length), - "Address Length", NULL}, - {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.type_specific), - "Type-Specific Attribute", NULL} -}; - -struct acpi_rsdump_info acpi_rs_dump_ext_irq[8] = { - {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_ext_irq), - "Extended IRQ", NULL}, - {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.producer_consumer), - "Type", acpi_gbl_consume_decode}, - {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.triggering), - "Triggering", acpi_gbl_he_decode}, - {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.polarity), "Polarity", - acpi_gbl_ll_decode}, - {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.sharable), "Sharing", - acpi_gbl_shr_decode}, - {ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(extended_irq.resource_source), NULL, - NULL}, - {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(extended_irq.interrupt_count), - "Interrupt Count", NULL}, - {ACPI_RSD_DWORDLIST, ACPI_RSD_OFFSET(extended_irq.interrupts[0]), - "Interrupt List", NULL} -}; - -struct acpi_rsdump_info acpi_rs_dump_generic_reg[6] = { - {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_generic_reg), - "Generic Register", NULL}, - {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(generic_reg.space_id), "Space ID", - NULL}, - {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(generic_reg.bit_width), "Bit Width", - NULL}, - {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(generic_reg.bit_offset), "Bit Offset", - NULL}, - {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(generic_reg.access_size), - "Access Size", NULL}, - {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(generic_reg.address), "Address", NULL} -}; - -/* - * Tables used for common address descriptor flag fields - */ -static struct acpi_rsdump_info acpi_rs_dump_general_flags[5] = { - {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_general_flags), NULL, - NULL}, - {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.producer_consumer), - "Consumer/Producer", acpi_gbl_consume_decode}, - {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.decode), "Address Decode", - acpi_gbl_dec_decode}, - {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.min_address_fixed), - "Min Relocatability", acpi_gbl_min_decode}, - {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.max_address_fixed), - "Max Relocatability", acpi_gbl_max_decode} -}; - -static struct acpi_rsdump_info acpi_rs_dump_memory_flags[5] = { - {ACPI_RSD_LITERAL, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_memory_flags), - "Resource Type", (void *)"Memory Range"}, - {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.mem.write_protect), - "Write Protect", acpi_gbl_rw_decode}, - {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(address.info.mem.caching), - "Caching", acpi_gbl_mem_decode}, - {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(address.info.mem.range_type), - "Range Type", acpi_gbl_mtp_decode}, - {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.mem.translation), - "Translation", acpi_gbl_ttp_decode} -}; - -static struct acpi_rsdump_info acpi_rs_dump_io_flags[4] = { - {ACPI_RSD_LITERAL, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_io_flags), - "Resource Type", (void *)"I/O Range"}, - {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(address.info.io.range_type), - "Range Type", acpi_gbl_rng_decode}, - {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.io.translation), - "Translation", acpi_gbl_ttp_decode}, - {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.io.translation_type), - "Translation Type", acpi_gbl_trs_decode} -}; - -/* - * Table used to dump _PRT contents - */ -static struct acpi_rsdump_info acpi_rs_dump_prt[5] = { - {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_prt), NULL, NULL}, - {ACPI_RSD_UINT64, ACPI_PRT_OFFSET(address), "Address", NULL}, - {ACPI_RSD_UINT32, ACPI_PRT_OFFSET(pin), "Pin", NULL}, - {ACPI_RSD_STRING, ACPI_PRT_OFFSET(source[0]), "Source", NULL}, - {ACPI_RSD_UINT32, ACPI_PRT_OFFSET(source_index), "Source Index", NULL} -}; - -/******************************************************************************* - * - * FUNCTION: acpi_rs_dump_descriptor - * - * PARAMETERS: Resource - * - * RETURN: None - * - * DESCRIPTION: - * - ******************************************************************************/ - -static void -acpi_rs_dump_descriptor(void *resource, struct acpi_rsdump_info *table) -{ - u8 *target = NULL; - u8 *previous_target; - char *name; - u8 count; - - /* First table entry must contain the table length (# of table entries) */ - - count = table->offset; - - while (count) { - previous_target = target; - target = ACPI_ADD_PTR(u8, resource, table->offset); - name = table->name; - - switch (table->opcode) { - case ACPI_RSD_TITLE: - /* - * Optional resource title - */ - if (table->name) { - acpi_os_printf("%s Resource\n", name); - } - break; - - /* Strings */ - - case ACPI_RSD_LITERAL: - acpi_rs_out_string(name, - ACPI_CAST_PTR(char, table->pointer)); - break; - - case ACPI_RSD_STRING: - acpi_rs_out_string(name, ACPI_CAST_PTR(char, target)); - break; - - /* Data items, 8/16/32/64 bit */ - - case ACPI_RSD_UINT8: - acpi_rs_out_integer8(name, ACPI_GET8(target)); - break; - - case ACPI_RSD_UINT16: - acpi_rs_out_integer16(name, ACPI_GET16(target)); - break; - - case ACPI_RSD_UINT32: - acpi_rs_out_integer32(name, ACPI_GET32(target)); - break; - - case ACPI_RSD_UINT64: - acpi_rs_out_integer64(name, ACPI_GET64(target)); - break; - - /* Flags: 1-bit and 2-bit flags supported */ - - case ACPI_RSD_1BITFLAG: - acpi_rs_out_string(name, ACPI_CAST_PTR(char, - table-> - pointer[*target & - 0x01])); - break; - - case ACPI_RSD_2BITFLAG: - acpi_rs_out_string(name, ACPI_CAST_PTR(char, - table-> - pointer[*target & - 0x03])); - break; - - case ACPI_RSD_SHORTLIST: - /* - * Short byte list (single line output) for DMA and IRQ resources - * Note: The list length is obtained from the previous table entry - */ - if (previous_target) { - acpi_rs_out_title(name); - acpi_rs_dump_short_byte_list(*previous_target, - target); - } - break; - - case ACPI_RSD_LONGLIST: - /* - * Long byte list for Vendor resource data - * Note: The list length is obtained from the previous table entry - */ - if (previous_target) { - acpi_rs_dump_byte_list(ACPI_GET16 - (previous_target), - target); - } - break; - - case ACPI_RSD_DWORDLIST: - /* - * Dword list for Extended Interrupt resources - * Note: The list length is obtained from the previous table entry - */ - if (previous_target) { - acpi_rs_dump_dword_list(*previous_target, - ACPI_CAST_PTR(u32, - target)); - } - break; - - case ACPI_RSD_ADDRESS: - /* - * Common flags for all Address resources - */ - acpi_rs_dump_address_common(ACPI_CAST_PTR - (union acpi_resource_data, - target)); - break; - - case ACPI_RSD_SOURCE: - /* - * Optional resource_source for Address resources - */ - acpi_rs_dump_resource_source(ACPI_CAST_PTR(struct - acpi_resource_source, - target)); - break; - - default: - acpi_os_printf("**** Invalid table opcode [%X] ****\n", - table->opcode); - return; - } - - table++; - count--; - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_dump_resource_source - * - * PARAMETERS: resource_source - Pointer to a Resource Source struct - * - * RETURN: None - * - * DESCRIPTION: Common routine for dumping the optional resource_source and the - * corresponding resource_source_index. - * - ******************************************************************************/ - -static void -acpi_rs_dump_resource_source(struct acpi_resource_source *resource_source) -{ - ACPI_FUNCTION_ENTRY(); - - if (resource_source->index == 0xFF) { - return; - } - - acpi_rs_out_integer8("Resource Source Index", resource_source->index); - - acpi_rs_out_string("Resource Source", - resource_source->string_ptr ? - resource_source->string_ptr : "[Not Specified]"); -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_dump_address_common - * - * PARAMETERS: Resource - Pointer to an internal resource descriptor - * - * RETURN: None - * - * DESCRIPTION: Dump the fields that are common to all Address resource - * descriptors - * - ******************************************************************************/ - -static void acpi_rs_dump_address_common(union acpi_resource_data *resource) -{ - ACPI_FUNCTION_ENTRY(); - - /* Decode the type-specific flags */ - - switch (resource->address.resource_type) { - case ACPI_MEMORY_RANGE: - - acpi_rs_dump_descriptor(resource, acpi_rs_dump_memory_flags); - break; - - case ACPI_IO_RANGE: - - acpi_rs_dump_descriptor(resource, acpi_rs_dump_io_flags); - break; - - case ACPI_BUS_NUMBER_RANGE: - - acpi_rs_out_string("Resource Type", "Bus Number Range"); - break; - - default: - - acpi_rs_out_integer8("Resource Type", - (u8) resource->address.resource_type); - break; - } - - /* Decode the general flags */ - - acpi_rs_dump_descriptor(resource, acpi_rs_dump_general_flags); -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_dump_resource_list - * - * PARAMETERS: resource_list - Pointer to a resource descriptor list - * - * RETURN: None - * - * DESCRIPTION: Dispatches the structure to the correct dump routine. - * - ******************************************************************************/ - -void acpi_rs_dump_resource_list(struct acpi_resource *resource_list) -{ - u32 count = 0; - u32 type; - - ACPI_FUNCTION_ENTRY(); - - if (!(acpi_dbg_level & ACPI_LV_RESOURCES) - || !(_COMPONENT & acpi_dbg_layer)) { - return; - } - - /* Walk list and dump all resource descriptors (END_TAG terminates) */ - - do { - acpi_os_printf("\n[%02X] ", count); - count++; - - /* Validate Type before dispatch */ - - type = resource_list->type; - if (type > ACPI_RESOURCE_TYPE_MAX) { - acpi_os_printf - ("Invalid descriptor type (%X) in resource list\n", - resource_list->type); - return; - } - - /* Dump the resource descriptor */ - - acpi_rs_dump_descriptor(&resource_list->data, - acpi_gbl_dump_resource_dispatch[type]); - - /* Point to the next resource structure */ - - resource_list = - ACPI_ADD_PTR(struct acpi_resource, resource_list, - resource_list->length); - - /* Exit when END_TAG descriptor is reached */ - - } while (type != ACPI_RESOURCE_TYPE_END_TAG); -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_dump_irq_list - * - * PARAMETERS: route_table - Pointer to the routing table to dump. - * - * RETURN: None - * - * DESCRIPTION: Print IRQ routing table - * - ******************************************************************************/ - -void acpi_rs_dump_irq_list(u8 * route_table) -{ - struct acpi_pci_routing_table *prt_element; - u8 count; - - ACPI_FUNCTION_ENTRY(); - - if (!(acpi_dbg_level & ACPI_LV_RESOURCES) - || !(_COMPONENT & acpi_dbg_layer)) { - return; - } - - prt_element = ACPI_CAST_PTR(struct acpi_pci_routing_table, route_table); - - /* Dump all table elements, Exit on zero length element */ - - for (count = 0; prt_element->length; count++) { - acpi_os_printf("\n[%02X] PCI IRQ Routing Table Package\n", - count); - acpi_rs_dump_descriptor(prt_element, acpi_rs_dump_prt); - - prt_element = ACPI_ADD_PTR(struct acpi_pci_routing_table, - prt_element, prt_element->length); - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_out* - * - * PARAMETERS: Title - Name of the resource field - * Value - Value of the resource field - * - * RETURN: None - * - * DESCRIPTION: Miscellaneous helper functions to consistently format the - * output of the resource dump routines - * - ******************************************************************************/ - -static void acpi_rs_out_string(char *title, char *value) -{ - acpi_os_printf("%27s : %s", title, value); - if (!*value) { - acpi_os_printf("[NULL NAMESTRING]"); - } - acpi_os_printf("\n"); -} - -static void acpi_rs_out_integer8(char *title, u8 value) -{ - acpi_os_printf("%27s : %2.2X\n", title, value); -} - -static void acpi_rs_out_integer16(char *title, u16 value) -{ - acpi_os_printf("%27s : %4.4X\n", title, value); -} - -static void acpi_rs_out_integer32(char *title, u32 value) -{ - acpi_os_printf("%27s : %8.8X\n", title, value); -} - -static void acpi_rs_out_integer64(char *title, u64 value) -{ - acpi_os_printf("%27s : %8.8X%8.8X\n", title, ACPI_FORMAT_UINT64(value)); -} - -static void acpi_rs_out_title(char *title) -{ - acpi_os_printf("%27s : ", title); -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_dump*List - * - * PARAMETERS: Length - Number of elements in the list - * Data - Start of the list - * - * RETURN: None - * - * DESCRIPTION: Miscellaneous functions to dump lists of raw data - * - ******************************************************************************/ - -static void acpi_rs_dump_byte_list(u16 length, u8 * data) -{ - u8 i; - - for (i = 0; i < length; i++) { - acpi_os_printf("%25s%2.2X : %2.2X\n", "Byte", i, data[i]); - } -} - -static void acpi_rs_dump_short_byte_list(u8 length, u8 * data) -{ - u8 i; - - for (i = 0; i < length; i++) { - acpi_os_printf("%X ", data[i]); - } - acpi_os_printf("\n"); -} - -static void acpi_rs_dump_dword_list(u8 length, u32 * data) -{ - u8 i; - - for (i = 0; i < length; i++) { - acpi_os_printf("%25s%2.2X : %8.8X\n", "Dword", i, data[i]); - } -} - -#endif diff --git a/drivers/acpi/resources/rsinfo.c b/drivers/acpi/resources/rsinfo.c deleted file mode 100644 index aac41cc21344..000000000000 --- a/drivers/acpi/resources/rsinfo.c +++ /dev/null @@ -1,206 +0,0 @@ -/******************************************************************************* - * - * Module Name: rsinfo - Dispatch and Info tables - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_RESOURCES -ACPI_MODULE_NAME("rsinfo") - -/* - * Resource dispatch and information tables. Any new resource types (either - * Large or Small) must be reflected in each of these tables, so they are here - * in one place. - * - * The tables for Large descriptors are indexed by bits 6:0 of the AML - * descriptor type byte. The tables for Small descriptors are indexed by - * bits 6:3 of the descriptor byte. The tables for internal resource - * descriptors are indexed by the acpi_resource_type field. - */ -/* Dispatch table for resource-to-AML (Set Resource) conversion functions */ -struct acpi_rsconvert_info *acpi_gbl_set_resource_dispatch[] = { - acpi_rs_set_irq, /* 0x00, ACPI_RESOURCE_TYPE_IRQ */ - acpi_rs_convert_dma, /* 0x01, ACPI_RESOURCE_TYPE_DMA */ - acpi_rs_set_start_dpf, /* 0x02, ACPI_RESOURCE_TYPE_START_DEPENDENT */ - acpi_rs_convert_end_dpf, /* 0x03, ACPI_RESOURCE_TYPE_END_DEPENDENT */ - acpi_rs_convert_io, /* 0x04, ACPI_RESOURCE_TYPE_IO */ - acpi_rs_convert_fixed_io, /* 0x05, ACPI_RESOURCE_TYPE_FIXED_IO */ - acpi_rs_set_vendor, /* 0x06, ACPI_RESOURCE_TYPE_VENDOR */ - acpi_rs_convert_end_tag, /* 0x07, ACPI_RESOURCE_TYPE_END_TAG */ - acpi_rs_convert_memory24, /* 0x08, ACPI_RESOURCE_TYPE_MEMORY24 */ - acpi_rs_convert_memory32, /* 0x09, ACPI_RESOURCE_TYPE_MEMORY32 */ - acpi_rs_convert_fixed_memory32, /* 0x0A, ACPI_RESOURCE_TYPE_FIXED_MEMORY32 */ - acpi_rs_convert_address16, /* 0x0B, ACPI_RESOURCE_TYPE_ADDRESS16 */ - acpi_rs_convert_address32, /* 0x0C, ACPI_RESOURCE_TYPE_ADDRESS32 */ - acpi_rs_convert_address64, /* 0x0D, ACPI_RESOURCE_TYPE_ADDRESS64 */ - acpi_rs_convert_ext_address64, /* 0x0E, ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64 */ - acpi_rs_convert_ext_irq, /* 0x0F, ACPI_RESOURCE_TYPE_EXTENDED_IRQ */ - acpi_rs_convert_generic_reg /* 0x10, ACPI_RESOURCE_TYPE_GENERIC_REGISTER */ -}; - -/* Dispatch tables for AML-to-resource (Get Resource) conversion functions */ - -struct acpi_rsconvert_info *acpi_gbl_get_resource_dispatch[] = { - /* Small descriptors */ - - NULL, /* 0x00, Reserved */ - NULL, /* 0x01, Reserved */ - NULL, /* 0x02, Reserved */ - NULL, /* 0x03, Reserved */ - acpi_rs_get_irq, /* 0x04, ACPI_RESOURCE_NAME_IRQ */ - acpi_rs_convert_dma, /* 0x05, ACPI_RESOURCE_NAME_DMA */ - acpi_rs_get_start_dpf, /* 0x06, ACPI_RESOURCE_NAME_START_DEPENDENT */ - acpi_rs_convert_end_dpf, /* 0x07, ACPI_RESOURCE_NAME_END_DEPENDENT */ - acpi_rs_convert_io, /* 0x08, ACPI_RESOURCE_NAME_IO */ - acpi_rs_convert_fixed_io, /* 0x09, ACPI_RESOURCE_NAME_FIXED_IO */ - NULL, /* 0x0A, Reserved */ - NULL, /* 0x0B, Reserved */ - NULL, /* 0x0C, Reserved */ - NULL, /* 0x0D, Reserved */ - acpi_rs_get_vendor_small, /* 0x0E, ACPI_RESOURCE_NAME_VENDOR_SMALL */ - acpi_rs_convert_end_tag, /* 0x0F, ACPI_RESOURCE_NAME_END_TAG */ - - /* Large descriptors */ - - NULL, /* 0x00, Reserved */ - acpi_rs_convert_memory24, /* 0x01, ACPI_RESOURCE_NAME_MEMORY24 */ - acpi_rs_convert_generic_reg, /* 0x02, ACPI_RESOURCE_NAME_GENERIC_REGISTER */ - NULL, /* 0x03, Reserved */ - acpi_rs_get_vendor_large, /* 0x04, ACPI_RESOURCE_NAME_VENDOR_LARGE */ - acpi_rs_convert_memory32, /* 0x05, ACPI_RESOURCE_NAME_MEMORY32 */ - acpi_rs_convert_fixed_memory32, /* 0x06, ACPI_RESOURCE_NAME_FIXED_MEMORY32 */ - acpi_rs_convert_address32, /* 0x07, ACPI_RESOURCE_NAME_ADDRESS32 */ - acpi_rs_convert_address16, /* 0x08, ACPI_RESOURCE_NAME_ADDRESS16 */ - acpi_rs_convert_ext_irq, /* 0x09, ACPI_RESOURCE_NAME_EXTENDED_IRQ */ - acpi_rs_convert_address64, /* 0x0A, ACPI_RESOURCE_NAME_ADDRESS64 */ - acpi_rs_convert_ext_address64 /* 0x0B, ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64 */ -}; - -#ifdef ACPI_FUTURE_USAGE -#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) - -/* Dispatch table for resource dump functions */ - -struct acpi_rsdump_info *acpi_gbl_dump_resource_dispatch[] = { - acpi_rs_dump_irq, /* ACPI_RESOURCE_TYPE_IRQ */ - acpi_rs_dump_dma, /* ACPI_RESOURCE_TYPE_DMA */ - acpi_rs_dump_start_dpf, /* ACPI_RESOURCE_TYPE_START_DEPENDENT */ - acpi_rs_dump_end_dpf, /* ACPI_RESOURCE_TYPE_END_DEPENDENT */ - acpi_rs_dump_io, /* ACPI_RESOURCE_TYPE_IO */ - acpi_rs_dump_fixed_io, /* ACPI_RESOURCE_TYPE_FIXED_IO */ - acpi_rs_dump_vendor, /* ACPI_RESOURCE_TYPE_VENDOR */ - acpi_rs_dump_end_tag, /* ACPI_RESOURCE_TYPE_END_TAG */ - acpi_rs_dump_memory24, /* ACPI_RESOURCE_TYPE_MEMORY24 */ - acpi_rs_dump_memory32, /* ACPI_RESOURCE_TYPE_MEMORY32 */ - acpi_rs_dump_fixed_memory32, /* ACPI_RESOURCE_TYPE_FIXED_MEMORY32 */ - acpi_rs_dump_address16, /* ACPI_RESOURCE_TYPE_ADDRESS16 */ - acpi_rs_dump_address32, /* ACPI_RESOURCE_TYPE_ADDRESS32 */ - acpi_rs_dump_address64, /* ACPI_RESOURCE_TYPE_ADDRESS64 */ - acpi_rs_dump_ext_address64, /* ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64 */ - acpi_rs_dump_ext_irq, /* ACPI_RESOURCE_TYPE_EXTENDED_IRQ */ - acpi_rs_dump_generic_reg, /* ACPI_RESOURCE_TYPE_GENERIC_REGISTER */ -}; -#endif - -#endif /* ACPI_FUTURE_USAGE */ -/* - * Base sizes for external AML resource descriptors, indexed by internal type. - * Includes size of the descriptor header (1 byte for small descriptors, - * 3 bytes for large descriptors) - */ -const u8 acpi_gbl_aml_resource_sizes[] = { - sizeof(struct aml_resource_irq), /* ACPI_RESOURCE_TYPE_IRQ (optional Byte 3 always created) */ - sizeof(struct aml_resource_dma), /* ACPI_RESOURCE_TYPE_DMA */ - sizeof(struct aml_resource_start_dependent), /* ACPI_RESOURCE_TYPE_START_DEPENDENT (optional Byte 1 always created) */ - sizeof(struct aml_resource_end_dependent), /* ACPI_RESOURCE_TYPE_END_DEPENDENT */ - sizeof(struct aml_resource_io), /* ACPI_RESOURCE_TYPE_IO */ - sizeof(struct aml_resource_fixed_io), /* ACPI_RESOURCE_TYPE_FIXED_IO */ - sizeof(struct aml_resource_vendor_small), /* ACPI_RESOURCE_TYPE_VENDOR */ - sizeof(struct aml_resource_end_tag), /* ACPI_RESOURCE_TYPE_END_TAG */ - sizeof(struct aml_resource_memory24), /* ACPI_RESOURCE_TYPE_MEMORY24 */ - sizeof(struct aml_resource_memory32), /* ACPI_RESOURCE_TYPE_MEMORY32 */ - sizeof(struct aml_resource_fixed_memory32), /* ACPI_RESOURCE_TYPE_FIXED_MEMORY32 */ - sizeof(struct aml_resource_address16), /* ACPI_RESOURCE_TYPE_ADDRESS16 */ - sizeof(struct aml_resource_address32), /* ACPI_RESOURCE_TYPE_ADDRESS32 */ - sizeof(struct aml_resource_address64), /* ACPI_RESOURCE_TYPE_ADDRESS64 */ - sizeof(struct aml_resource_extended_address64), /*ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64 */ - sizeof(struct aml_resource_extended_irq), /* ACPI_RESOURCE_TYPE_EXTENDED_IRQ */ - sizeof(struct aml_resource_generic_register) /* ACPI_RESOURCE_TYPE_GENERIC_REGISTER */ -}; - -const u8 acpi_gbl_resource_struct_sizes[] = { - /* Small descriptors */ - - 0, - 0, - 0, - 0, - ACPI_RS_SIZE(struct acpi_resource_irq), - ACPI_RS_SIZE(struct acpi_resource_dma), - ACPI_RS_SIZE(struct acpi_resource_start_dependent), - ACPI_RS_SIZE_MIN, - ACPI_RS_SIZE(struct acpi_resource_io), - ACPI_RS_SIZE(struct acpi_resource_fixed_io), - 0, - 0, - 0, - 0, - ACPI_RS_SIZE(struct acpi_resource_vendor), - ACPI_RS_SIZE_MIN, - - /* Large descriptors */ - - 0, - ACPI_RS_SIZE(struct acpi_resource_memory24), - ACPI_RS_SIZE(struct acpi_resource_generic_register), - 0, - ACPI_RS_SIZE(struct acpi_resource_vendor), - ACPI_RS_SIZE(struct acpi_resource_memory32), - ACPI_RS_SIZE(struct acpi_resource_fixed_memory32), - ACPI_RS_SIZE(struct acpi_resource_address32), - ACPI_RS_SIZE(struct acpi_resource_address16), - ACPI_RS_SIZE(struct acpi_resource_extended_irq), - ACPI_RS_SIZE(struct acpi_resource_address64), - ACPI_RS_SIZE(struct acpi_resource_extended_address64) -}; diff --git a/drivers/acpi/resources/rsio.c b/drivers/acpi/resources/rsio.c deleted file mode 100644 index d31129aca400..000000000000 --- a/drivers/acpi/resources/rsio.c +++ /dev/null @@ -1,290 +0,0 @@ -/******************************************************************************* - * - * Module Name: rsio - IO and DMA resource descriptors - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_RESOURCES -ACPI_MODULE_NAME("rsio") - -/******************************************************************************* - * - * acpi_rs_convert_io - * - ******************************************************************************/ -struct acpi_rsconvert_info acpi_rs_convert_io[5] = { - {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_IO, - ACPI_RS_SIZE(struct acpi_resource_io), - ACPI_RSC_TABLE_SIZE(acpi_rs_convert_io)}, - - {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IO, - sizeof(struct aml_resource_io), - 0}, - - /* Decode flag */ - - {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.io.io_decode), - AML_OFFSET(io.flags), - 0}, - /* - * These fields are contiguous in both the source and destination: - * Address Alignment - * Length - * Minimum Base Address - * Maximum Base Address - */ - {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.io.alignment), - AML_OFFSET(io.alignment), - 2}, - - {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.io.minimum), - AML_OFFSET(io.minimum), - 2} -}; - -/******************************************************************************* - * - * acpi_rs_convert_fixed_io - * - ******************************************************************************/ - -struct acpi_rsconvert_info acpi_rs_convert_fixed_io[4] = { - {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_FIXED_IO, - ACPI_RS_SIZE(struct acpi_resource_fixed_io), - ACPI_RSC_TABLE_SIZE(acpi_rs_convert_fixed_io)}, - - {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_FIXED_IO, - sizeof(struct aml_resource_fixed_io), - 0}, - /* - * These fields are contiguous in both the source and destination: - * Base Address - * Length - */ - {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.fixed_io.address_length), - AML_OFFSET(fixed_io.address_length), - 1}, - - {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.fixed_io.address), - AML_OFFSET(fixed_io.address), - 1} -}; - -/******************************************************************************* - * - * acpi_rs_convert_generic_reg - * - ******************************************************************************/ - -struct acpi_rsconvert_info acpi_rs_convert_generic_reg[4] = { - {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_GENERIC_REGISTER, - ACPI_RS_SIZE(struct acpi_resource_generic_register), - ACPI_RSC_TABLE_SIZE(acpi_rs_convert_generic_reg)}, - - {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_GENERIC_REGISTER, - sizeof(struct aml_resource_generic_register), - 0}, - /* - * These fields are contiguous in both the source and destination: - * Address Space ID - * Register Bit Width - * Register Bit Offset - * Access Size - */ - {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.generic_reg.space_id), - AML_OFFSET(generic_reg.address_space_id), - 4}, - - /* Get the Register Address */ - - {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.generic_reg.address), - AML_OFFSET(generic_reg.address), - 1} -}; - -/******************************************************************************* - * - * acpi_rs_convert_end_dpf - * - ******************************************************************************/ - -struct acpi_rsconvert_info acpi_rs_convert_end_dpf[2] = { - {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_END_DEPENDENT, - ACPI_RS_SIZE_MIN, - ACPI_RSC_TABLE_SIZE(acpi_rs_convert_end_dpf)}, - - {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_END_DEPENDENT, - sizeof(struct aml_resource_end_dependent), - 0} -}; - -/******************************************************************************* - * - * acpi_rs_convert_end_tag - * - ******************************************************************************/ - -struct acpi_rsconvert_info acpi_rs_convert_end_tag[2] = { - {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_END_TAG, - ACPI_RS_SIZE_MIN, - ACPI_RSC_TABLE_SIZE(acpi_rs_convert_end_tag)}, - - /* - * Note: The checksum field is set to zero, meaning that the resource - * data is treated as if the checksum operation succeeded. - * (ACPI Spec 1.0b Section 6.4.2.8) - */ - {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_END_TAG, - sizeof(struct aml_resource_end_tag), - 0} -}; - -/******************************************************************************* - * - * acpi_rs_get_start_dpf - * - ******************************************************************************/ - -struct acpi_rsconvert_info acpi_rs_get_start_dpf[6] = { - {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_START_DEPENDENT, - ACPI_RS_SIZE(struct acpi_resource_start_dependent), - ACPI_RSC_TABLE_SIZE(acpi_rs_get_start_dpf)}, - - /* Defaults for Compatibility and Performance priorities */ - - {ACPI_RSC_SET8, ACPI_RS_OFFSET(data.start_dpf.compatibility_priority), - ACPI_ACCEPTABLE_CONFIGURATION, - 2}, - - /* Get the descriptor length (0 or 1 for Start Dpf descriptor) */ - - {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.start_dpf.descriptor_length), - AML_OFFSET(start_dpf.descriptor_type), - 0}, - - /* All done if there is no flag byte present in the descriptor */ - - {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 1}, - - /* Flag byte is present, get the flags */ - - {ACPI_RSC_2BITFLAG, - ACPI_RS_OFFSET(data.start_dpf.compatibility_priority), - AML_OFFSET(start_dpf.flags), - 0}, - - {ACPI_RSC_2BITFLAG, - ACPI_RS_OFFSET(data.start_dpf.performance_robustness), - AML_OFFSET(start_dpf.flags), - 2} -}; - -/******************************************************************************* - * - * acpi_rs_set_start_dpf - * - ******************************************************************************/ - -struct acpi_rsconvert_info acpi_rs_set_start_dpf[10] = { - /* Start with a default descriptor of length 1 */ - - {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_START_DEPENDENT, - sizeof(struct aml_resource_start_dependent), - ACPI_RSC_TABLE_SIZE(acpi_rs_set_start_dpf)}, - - /* Set the default flag values */ - - {ACPI_RSC_2BITFLAG, - ACPI_RS_OFFSET(data.start_dpf.compatibility_priority), - AML_OFFSET(start_dpf.flags), - 0}, - - {ACPI_RSC_2BITFLAG, - ACPI_RS_OFFSET(data.start_dpf.performance_robustness), - AML_OFFSET(start_dpf.flags), - 2}, - /* - * All done if the output descriptor length is required to be 1 - * (i.e., optimization to 0 bytes cannot be attempted) - */ - {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE, - ACPI_RS_OFFSET(data.start_dpf.descriptor_length), - 1}, - - /* Set length to 0 bytes (no flags byte) */ - - {ACPI_RSC_LENGTH, 0, 0, - sizeof(struct aml_resource_start_dependent_noprio)}, - - /* - * All done if the output descriptor length is required to be 0. - * - * TBD: Perhaps we should check for error if input flags are not - * compatible with a 0-byte descriptor. - */ - {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE, - ACPI_RS_OFFSET(data.start_dpf.descriptor_length), - 0}, - - /* Reset length to 1 byte (descriptor with flags byte) */ - - {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_start_dependent)}, - - /* - * All done if flags byte is necessary -- if either priority value - * is not ACPI_ACCEPTABLE_CONFIGURATION - */ - {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE, - ACPI_RS_OFFSET(data.start_dpf.compatibility_priority), - ACPI_ACCEPTABLE_CONFIGURATION}, - - {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE, - ACPI_RS_OFFSET(data.start_dpf.performance_robustness), - ACPI_ACCEPTABLE_CONFIGURATION}, - - /* Flag byte is not necessary */ - - {ACPI_RSC_LENGTH, 0, 0, - sizeof(struct aml_resource_start_dependent_noprio)} -}; diff --git a/drivers/acpi/resources/rsirq.c b/drivers/acpi/resources/rsirq.c deleted file mode 100644 index 9a5a08d67313..000000000000 --- a/drivers/acpi/resources/rsirq.c +++ /dev/null @@ -1,266 +0,0 @@ -/******************************************************************************* - * - * Module Name: rsirq - IRQ resource descriptors - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_RESOURCES -ACPI_MODULE_NAME("rsirq") - -/******************************************************************************* - * - * acpi_rs_get_irq - * - ******************************************************************************/ -struct acpi_rsconvert_info acpi_rs_get_irq[8] = { - {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_IRQ, - ACPI_RS_SIZE(struct acpi_resource_irq), - ACPI_RSC_TABLE_SIZE(acpi_rs_get_irq)}, - - /* Get the IRQ mask (bytes 1:2) */ - - {ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]), - AML_OFFSET(irq.irq_mask), - ACPI_RS_OFFSET(data.irq.interrupt_count)}, - - /* Set default flags (others are zero) */ - - {ACPI_RSC_SET8, ACPI_RS_OFFSET(data.irq.triggering), - ACPI_EDGE_SENSITIVE, - 1}, - - /* Get the descriptor length (2 or 3 for IRQ descriptor) */ - - {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.irq.descriptor_length), - AML_OFFSET(irq.descriptor_type), - 0}, - - /* All done if no flag byte present in descriptor */ - - {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 3}, - - /* Get flags: Triggering[0], Polarity[3], Sharing[4] */ - - {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering), - AML_OFFSET(irq.flags), - 0}, - - {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity), - AML_OFFSET(irq.flags), - 3}, - - {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable), - AML_OFFSET(irq.flags), - 4} -}; - -/******************************************************************************* - * - * acpi_rs_set_irq - * - ******************************************************************************/ - -struct acpi_rsconvert_info acpi_rs_set_irq[13] = { - /* Start with a default descriptor of length 3 */ - - {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IRQ, - sizeof(struct aml_resource_irq), - ACPI_RSC_TABLE_SIZE(acpi_rs_set_irq)}, - - /* Convert interrupt list to 16-bit IRQ bitmask */ - - {ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]), - AML_OFFSET(irq.irq_mask), - ACPI_RS_OFFSET(data.irq.interrupt_count)}, - - /* Set the flags byte */ - - {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering), - AML_OFFSET(irq.flags), - 0}, - - {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity), - AML_OFFSET(irq.flags), - 3}, - - {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable), - AML_OFFSET(irq.flags), - 4}, - - /* - * All done if the output descriptor length is required to be 3 - * (i.e., optimization to 2 bytes cannot be attempted) - */ - {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE, - ACPI_RS_OFFSET(data.irq.descriptor_length), - 3}, - - /* Set length to 2 bytes (no flags byte) */ - - {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)}, - - /* - * All done if the output descriptor length is required to be 2. - * - * TBD: Perhaps we should check for error if input flags are not - * compatible with a 2-byte descriptor. - */ - {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE, - ACPI_RS_OFFSET(data.irq.descriptor_length), - 2}, - - /* Reset length to 3 bytes (descriptor with flags byte) */ - - {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq)}, - - /* - * Check if the flags byte is necessary. Not needed if the flags are: - * ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_HIGH, ACPI_EXCLUSIVE - */ - {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE, - ACPI_RS_OFFSET(data.irq.triggering), - ACPI_EDGE_SENSITIVE}, - - {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE, - ACPI_RS_OFFSET(data.irq.polarity), - ACPI_ACTIVE_HIGH}, - - {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE, - ACPI_RS_OFFSET(data.irq.sharable), - ACPI_EXCLUSIVE}, - - /* We can optimize to a 2-byte irq_no_flags() descriptor */ - - {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)} -}; - -/******************************************************************************* - * - * acpi_rs_convert_ext_irq - * - ******************************************************************************/ - -struct acpi_rsconvert_info acpi_rs_convert_ext_irq[9] = { - {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_IRQ, - ACPI_RS_SIZE(struct acpi_resource_extended_irq), - ACPI_RSC_TABLE_SIZE(acpi_rs_convert_ext_irq)}, - - {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_IRQ, - sizeof(struct aml_resource_extended_irq), - 0}, - - /* Flag bits */ - - {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.producer_consumer), - AML_OFFSET(extended_irq.flags), - 0}, - - {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.triggering), - AML_OFFSET(extended_irq.flags), - 1}, - - {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.polarity), - AML_OFFSET(extended_irq.flags), - 2}, - - {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.sharable), - AML_OFFSET(extended_irq.flags), - 3}, - - /* IRQ Table length (Byte4) */ - - {ACPI_RSC_COUNT, ACPI_RS_OFFSET(data.extended_irq.interrupt_count), - AML_OFFSET(extended_irq.interrupt_count), - sizeof(u32)} - , - - /* Copy every IRQ in the table, each is 32 bits */ - - {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.extended_irq.interrupts[0]), - AML_OFFSET(extended_irq.interrupts[0]), - 0} - , - - /* Optional resource_source (Index and String) */ - - {ACPI_RSC_SOURCEX, ACPI_RS_OFFSET(data.extended_irq.resource_source), - ACPI_RS_OFFSET(data.extended_irq.interrupts[0]), - sizeof(struct aml_resource_extended_irq)} -}; - -/******************************************************************************* - * - * acpi_rs_convert_dma - * - ******************************************************************************/ - -struct acpi_rsconvert_info acpi_rs_convert_dma[6] = { - {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_DMA, - ACPI_RS_SIZE(struct acpi_resource_dma), - ACPI_RSC_TABLE_SIZE(acpi_rs_convert_dma)}, - - {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_DMA, - sizeof(struct aml_resource_dma), - 0}, - - /* Flags: transfer preference, bus mastering, channel speed */ - - {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.transfer), - AML_OFFSET(dma.flags), - 0}, - - {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.dma.bus_master), - AML_OFFSET(dma.flags), - 2}, - - {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.type), - AML_OFFSET(dma.flags), - 5}, - - /* DMA channel mask bits */ - - {ACPI_RSC_BITMASK, ACPI_RS_OFFSET(data.dma.channels[0]), - AML_OFFSET(dma.dma_channel_mask), - ACPI_RS_OFFSET(data.dma.channel_count)} -}; diff --git a/drivers/acpi/resources/rslist.c b/drivers/acpi/resources/rslist.c deleted file mode 100644 index 483389871a50..000000000000 --- a/drivers/acpi/resources/rslist.c +++ /dev/null @@ -1,203 +0,0 @@ -/******************************************************************************* - * - * Module Name: rslist - Linked list utilities - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_RESOURCES -ACPI_MODULE_NAME("rslist") - -/******************************************************************************* - * - * FUNCTION: acpi_rs_convert_aml_to_resources - * - * PARAMETERS: acpi_walk_aml_callback - * resource_ptr - Pointer to the buffer that will - * contain the output structures - * - * RETURN: Status - * - * DESCRIPTION: Convert an AML resource to an internal representation of the - * resource that is aligned and easier to access. - * - ******************************************************************************/ -acpi_status -acpi_rs_convert_aml_to_resources(u8 * aml, - u32 length, - u32 offset, u8 resource_index, void **context) -{ - struct acpi_resource **resource_ptr = - ACPI_CAST_INDIRECT_PTR(struct acpi_resource, context); - struct acpi_resource *resource; - acpi_status status; - - ACPI_FUNCTION_TRACE(rs_convert_aml_to_resources); - - /* - * Check that the input buffer and all subsequent pointers into it - * are aligned on a native word boundary. Most important on IA64 - */ - resource = *resource_ptr; - if (ACPI_IS_MISALIGNED(resource)) { - ACPI_WARNING((AE_INFO, - "Misaligned resource pointer %p", resource)); - } - - /* Convert the AML byte stream resource to a local resource struct */ - - status = - acpi_rs_convert_aml_to_resource(resource, - ACPI_CAST_PTR(union aml_resource, - aml), - acpi_gbl_get_resource_dispatch - [resource_index]); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "Could not convert AML resource (Type %X)", - *aml)); - return_ACPI_STATUS(status); - } - - ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, - "Type %.2X, AmlLength %.2X InternalLength %.2X\n", - acpi_ut_get_resource_type(aml), length, - resource->length)); - - /* Point to the next structure in the output buffer */ - - *resource_ptr = ACPI_ADD_PTR(void, resource, resource->length); - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_convert_resources_to_aml - * - * PARAMETERS: Resource - Pointer to the resource linked list - * aml_size_needed - Calculated size of the byte stream - * needed from calling acpi_rs_get_aml_length() - * The size of the output_buffer is - * guaranteed to be >= aml_size_needed - * output_buffer - Pointer to the buffer that will - * contain the byte stream - * - * RETURN: Status - * - * DESCRIPTION: Takes the resource linked list and parses it, creating a - * byte stream of resources in the caller's output buffer - * - ******************************************************************************/ - -acpi_status -acpi_rs_convert_resources_to_aml(struct acpi_resource *resource, - acpi_size aml_size_needed, u8 * output_buffer) -{ - u8 *aml = output_buffer; - u8 *end_aml = output_buffer + aml_size_needed; - acpi_status status; - - ACPI_FUNCTION_TRACE(rs_convert_resources_to_aml); - - /* Walk the resource descriptor list, convert each descriptor */ - - while (aml < end_aml) { - - /* Validate the (internal) Resource Type */ - - if (resource->type > ACPI_RESOURCE_TYPE_MAX) { - ACPI_ERROR((AE_INFO, - "Invalid descriptor type (%X) in resource list", - resource->type)); - return_ACPI_STATUS(AE_BAD_DATA); - } - - /* Perform the conversion */ - - status = acpi_rs_convert_resource_to_aml(resource, ACPI_CAST_PTR(union - aml_resource, - aml), - acpi_gbl_set_resource_dispatch - [resource->type]); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "Could not convert resource (type %X) to AML", - resource->type)); - return_ACPI_STATUS(status); - } - - /* Perform final sanity check on the new AML resource descriptor */ - - status = - acpi_ut_validate_resource(ACPI_CAST_PTR - (union aml_resource, aml), NULL); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Check for end-of-list, normal exit */ - - if (resource->type == ACPI_RESOURCE_TYPE_END_TAG) { - - /* An End Tag indicates the end of the input Resource Template */ - - return_ACPI_STATUS(AE_OK); - } - - /* - * Extract the total length of the new descriptor and set the - * Aml to point to the next (output) resource descriptor - */ - aml += acpi_ut_get_descriptor_length(aml); - - /* Point to the next input resource descriptor */ - - resource = - ACPI_ADD_PTR(struct acpi_resource, resource, - resource->length); - } - - /* Completed buffer, but did not find an end_tag resource descriptor */ - - return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG); -} diff --git a/drivers/acpi/resources/rsmemory.c b/drivers/acpi/resources/rsmemory.c deleted file mode 100644 index 5fd3746cca54..000000000000 --- a/drivers/acpi/resources/rsmemory.c +++ /dev/null @@ -1,236 +0,0 @@ -/******************************************************************************* - * - * Module Name: rsmem24 - Memory resource descriptors - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_RESOURCES -ACPI_MODULE_NAME("rsmemory") - -/******************************************************************************* - * - * acpi_rs_convert_memory24 - * - ******************************************************************************/ -struct acpi_rsconvert_info acpi_rs_convert_memory24[4] = { - {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_MEMORY24, - ACPI_RS_SIZE(struct acpi_resource_memory24), - ACPI_RSC_TABLE_SIZE(acpi_rs_convert_memory24)}, - - {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_MEMORY24, - sizeof(struct aml_resource_memory24), - 0}, - - /* Read/Write bit */ - - {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.memory24.write_protect), - AML_OFFSET(memory24.flags), - 0}, - /* - * These fields are contiguous in both the source and destination: - * Minimum Base Address - * Maximum Base Address - * Address Base Alignment - * Range Length - */ - {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.memory24.minimum), - AML_OFFSET(memory24.minimum), - 4} -}; - -/******************************************************************************* - * - * acpi_rs_convert_memory32 - * - ******************************************************************************/ - -struct acpi_rsconvert_info acpi_rs_convert_memory32[4] = { - {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_MEMORY32, - ACPI_RS_SIZE(struct acpi_resource_memory32), - ACPI_RSC_TABLE_SIZE(acpi_rs_convert_memory32)}, - - {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_MEMORY32, - sizeof(struct aml_resource_memory32), - 0}, - - /* Read/Write bit */ - - {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.memory32.write_protect), - AML_OFFSET(memory32.flags), - 0}, - /* - * These fields are contiguous in both the source and destination: - * Minimum Base Address - * Maximum Base Address - * Address Base Alignment - * Range Length - */ - {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.memory32.minimum), - AML_OFFSET(memory32.minimum), - 4} -}; - -/******************************************************************************* - * - * acpi_rs_convert_fixed_memory32 - * - ******************************************************************************/ - -struct acpi_rsconvert_info acpi_rs_convert_fixed_memory32[4] = { - {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_FIXED_MEMORY32, - ACPI_RS_SIZE(struct acpi_resource_fixed_memory32), - ACPI_RSC_TABLE_SIZE(acpi_rs_convert_fixed_memory32)}, - - {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_FIXED_MEMORY32, - sizeof(struct aml_resource_fixed_memory32), - 0}, - - /* Read/Write bit */ - - {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.fixed_memory32.write_protect), - AML_OFFSET(fixed_memory32.flags), - 0}, - /* - * These fields are contiguous in both the source and destination: - * Base Address - * Range Length - */ - {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.fixed_memory32.address), - AML_OFFSET(fixed_memory32.address), - 2} -}; - -/******************************************************************************* - * - * acpi_rs_get_vendor_small - * - ******************************************************************************/ - -struct acpi_rsconvert_info acpi_rs_get_vendor_small[3] = { - {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_VENDOR, - ACPI_RS_SIZE(struct acpi_resource_vendor), - ACPI_RSC_TABLE_SIZE(acpi_rs_get_vendor_small)}, - - /* Length of the vendor data (byte count) */ - - {ACPI_RSC_COUNT16, ACPI_RS_OFFSET(data.vendor.byte_length), - 0, - sizeof(u8)} - , - - /* Vendor data */ - - {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.vendor.byte_data[0]), - sizeof(struct aml_resource_small_header), - 0} -}; - -/******************************************************************************* - * - * acpi_rs_get_vendor_large - * - ******************************************************************************/ - -struct acpi_rsconvert_info acpi_rs_get_vendor_large[3] = { - {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_VENDOR, - ACPI_RS_SIZE(struct acpi_resource_vendor), - ACPI_RSC_TABLE_SIZE(acpi_rs_get_vendor_large)}, - - /* Length of the vendor data (byte count) */ - - {ACPI_RSC_COUNT16, ACPI_RS_OFFSET(data.vendor.byte_length), - 0, - sizeof(u8)} - , - - /* Vendor data */ - - {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.vendor.byte_data[0]), - sizeof(struct aml_resource_large_header), - 0} -}; - -/******************************************************************************* - * - * acpi_rs_set_vendor - * - ******************************************************************************/ - -struct acpi_rsconvert_info acpi_rs_set_vendor[7] = { - /* Default is a small vendor descriptor */ - - {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_VENDOR_SMALL, - sizeof(struct aml_resource_small_header), - ACPI_RSC_TABLE_SIZE(acpi_rs_set_vendor)}, - - /* Get the length and copy the data */ - - {ACPI_RSC_COUNT16, ACPI_RS_OFFSET(data.vendor.byte_length), - 0, - 0}, - - {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.vendor.byte_data[0]), - sizeof(struct aml_resource_small_header), - 0}, - - /* - * All done if the Vendor byte length is 7 or less, meaning that it will - * fit within a small descriptor - */ - {ACPI_RSC_EXIT_LE, 0, 0, 7}, - - /* Must create a large vendor descriptor */ - - {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_VENDOR_LARGE, - sizeof(struct aml_resource_large_header), - 0}, - - {ACPI_RSC_COUNT16, ACPI_RS_OFFSET(data.vendor.byte_length), - 0, - 0}, - - {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.vendor.byte_data[0]), - sizeof(struct aml_resource_large_header), - 0} -}; diff --git a/drivers/acpi/resources/rsmisc.c b/drivers/acpi/resources/rsmisc.c deleted file mode 100644 index 2cd6e8cfaba1..000000000000 --- a/drivers/acpi/resources/rsmisc.c +++ /dev/null @@ -1,561 +0,0 @@ -/******************************************************************************* - * - * Module Name: rsmisc - Miscellaneous resource descriptors - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_RESOURCES -ACPI_MODULE_NAME("rsmisc") -#define INIT_RESOURCE_TYPE(i) i->resource_offset -#define INIT_RESOURCE_LENGTH(i) i->aml_offset -#define INIT_TABLE_LENGTH(i) i->value -#define COMPARE_OPCODE(i) i->resource_offset -#define COMPARE_TARGET(i) i->aml_offset -#define COMPARE_VALUE(i) i->value -/******************************************************************************* - * - * FUNCTION: acpi_rs_convert_aml_to_resource - * - * PARAMETERS: Resource - Pointer to the resource descriptor - * Aml - Where the AML descriptor is returned - * Info - Pointer to appropriate conversion table - * - * RETURN: Status - * - * DESCRIPTION: Convert an external AML resource descriptor to the corresponding - * internal resource descriptor - * - ******************************************************************************/ -acpi_status -acpi_rs_convert_aml_to_resource(struct acpi_resource *resource, - union aml_resource *aml, - struct acpi_rsconvert_info *info) -{ - acpi_rs_length aml_resource_length; - void *source; - void *destination; - char *target; - u8 count; - u8 flags_mode = FALSE; - u16 item_count = 0; - u16 temp16 = 0; - - ACPI_FUNCTION_TRACE(rs_convert_aml_to_resource); - - if (((acpi_size) resource) & 0x3) { - - /* Each internal resource struct is expected to be 32-bit aligned */ - - ACPI_WARNING((AE_INFO, - "Misaligned resource pointer (get): %p Type %2.2X Len %X", - resource, resource->type, resource->length)); - } - - /* Extract the resource Length field (does not include header length) */ - - aml_resource_length = acpi_ut_get_resource_length(aml); - - /* - * First table entry must be ACPI_RSC_INITxxx and must contain the - * table length (# of table entries) - */ - count = INIT_TABLE_LENGTH(info); - - while (count) { - /* - * Source is the external AML byte stream buffer, - * destination is the internal resource descriptor - */ - source = ACPI_ADD_PTR(void, aml, info->aml_offset); - destination = - ACPI_ADD_PTR(void, resource, info->resource_offset); - - switch (info->opcode) { - case ACPI_RSC_INITGET: - /* - * Get the resource type and the initial (minimum) length - */ - ACPI_MEMSET(resource, 0, INIT_RESOURCE_LENGTH(info)); - resource->type = INIT_RESOURCE_TYPE(info); - resource->length = INIT_RESOURCE_LENGTH(info); - break; - - case ACPI_RSC_INITSET: - break; - - case ACPI_RSC_FLAGINIT: - - flags_mode = TRUE; - break; - - case ACPI_RSC_1BITFLAG: - /* - * Mask and shift the flag bit - */ - ACPI_SET8(destination) = (u8) - ((ACPI_GET8(source) >> info->value) & 0x01); - break; - - case ACPI_RSC_2BITFLAG: - /* - * Mask and shift the flag bits - */ - ACPI_SET8(destination) = (u8) - ((ACPI_GET8(source) >> info->value) & 0x03); - break; - - case ACPI_RSC_COUNT: - - item_count = ACPI_GET8(source); - ACPI_SET8(destination) = (u8) item_count; - - resource->length = resource->length + - (info->value * (item_count - 1)); - break; - - case ACPI_RSC_COUNT16: - - item_count = aml_resource_length; - ACPI_SET16(destination) = item_count; - - resource->length = resource->length + - (info->value * (item_count - 1)); - break; - - case ACPI_RSC_LENGTH: - - resource->length = resource->length + info->value; - break; - - case ACPI_RSC_MOVE8: - case ACPI_RSC_MOVE16: - case ACPI_RSC_MOVE32: - case ACPI_RSC_MOVE64: - /* - * Raw data move. Use the Info value field unless item_count has - * been previously initialized via a COUNT opcode - */ - if (info->value) { - item_count = info->value; - } - acpi_rs_move_data(destination, source, item_count, - info->opcode); - break; - - case ACPI_RSC_SET8: - - ACPI_MEMSET(destination, info->aml_offset, info->value); - break; - - case ACPI_RSC_DATA8: - - target = ACPI_ADD_PTR(char, resource, info->value); - ACPI_MEMCPY(destination, source, ACPI_GET16(target)); - break; - - case ACPI_RSC_ADDRESS: - /* - * Common handler for address descriptor flags - */ - if (!acpi_rs_get_address_common(resource, aml)) { - return_ACPI_STATUS - (AE_AML_INVALID_RESOURCE_TYPE); - } - break; - - case ACPI_RSC_SOURCE: - /* - * Optional resource_source (Index and String) - */ - resource->length += - acpi_rs_get_resource_source(aml_resource_length, - info->value, - destination, aml, NULL); - break; - - case ACPI_RSC_SOURCEX: - /* - * Optional resource_source (Index and String). This is the more - * complicated case used by the Interrupt() macro - */ - target = - ACPI_ADD_PTR(char, resource, - info->aml_offset + (item_count * 4)); - - resource->length += - acpi_rs_get_resource_source(aml_resource_length, - (acpi_rs_length) (((item_count - 1) * sizeof(u32)) + info->value), destination, aml, target); - break; - - case ACPI_RSC_BITMASK: - /* - * 8-bit encoded bitmask (DMA macro) - */ - item_count = - acpi_rs_decode_bitmask(ACPI_GET8(source), - destination); - if (item_count) { - resource->length += (item_count - 1); - } - - target = ACPI_ADD_PTR(char, resource, info->value); - ACPI_SET8(target) = (u8) item_count; - break; - - case ACPI_RSC_BITMASK16: - /* - * 16-bit encoded bitmask (IRQ macro) - */ - ACPI_MOVE_16_TO_16(&temp16, source); - - item_count = - acpi_rs_decode_bitmask(temp16, destination); - if (item_count) { - resource->length += (item_count - 1); - } - - target = ACPI_ADD_PTR(char, resource, info->value); - ACPI_SET8(target) = (u8) item_count; - break; - - case ACPI_RSC_EXIT_NE: - /* - * Control - Exit conversion if not equal - */ - switch (info->resource_offset) { - case ACPI_RSC_COMPARE_AML_LENGTH: - if (aml_resource_length != info->value) { - goto exit; - } - break; - - case ACPI_RSC_COMPARE_VALUE: - if (ACPI_GET8(source) != info->value) { - goto exit; - } - break; - - default: - - ACPI_ERROR((AE_INFO, - "Invalid conversion sub-opcode")); - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - break; - - default: - - ACPI_ERROR((AE_INFO, "Invalid conversion opcode")); - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - count--; - info++; - } - - exit: - if (!flags_mode) { - - /* Round the resource struct length up to the next boundary (32 or 64) */ - - resource->length = - (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(resource->length); - } - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_convert_resource_to_aml - * - * PARAMETERS: Resource - Pointer to the resource descriptor - * Aml - Where the AML descriptor is returned - * Info - Pointer to appropriate conversion table - * - * RETURN: Status - * - * DESCRIPTION: Convert an internal resource descriptor to the corresponding - * external AML resource descriptor. - * - ******************************************************************************/ - -acpi_status -acpi_rs_convert_resource_to_aml(struct acpi_resource *resource, - union aml_resource *aml, - struct acpi_rsconvert_info *info) -{ - void *source = NULL; - void *destination; - acpi_rsdesc_size aml_length = 0; - u8 count; - u16 temp16 = 0; - u16 item_count = 0; - - ACPI_FUNCTION_TRACE(rs_convert_resource_to_aml); - - /* - * First table entry must be ACPI_RSC_INITxxx and must contain the - * table length (# of table entries) - */ - count = INIT_TABLE_LENGTH(info); - - while (count) { - /* - * Source is the internal resource descriptor, - * destination is the external AML byte stream buffer - */ - source = ACPI_ADD_PTR(void, resource, info->resource_offset); - destination = ACPI_ADD_PTR(void, aml, info->aml_offset); - - switch (info->opcode) { - case ACPI_RSC_INITSET: - - ACPI_MEMSET(aml, 0, INIT_RESOURCE_LENGTH(info)); - aml_length = INIT_RESOURCE_LENGTH(info); - acpi_rs_set_resource_header(INIT_RESOURCE_TYPE(info), - aml_length, aml); - break; - - case ACPI_RSC_INITGET: - break; - - case ACPI_RSC_FLAGINIT: - /* - * Clear the flag byte - */ - ACPI_SET8(destination) = 0; - break; - - case ACPI_RSC_1BITFLAG: - /* - * Mask and shift the flag bit - */ - ACPI_SET8(destination) |= (u8) - ((ACPI_GET8(source) & 0x01) << info->value); - break; - - case ACPI_RSC_2BITFLAG: - /* - * Mask and shift the flag bits - */ - ACPI_SET8(destination) |= (u8) - ((ACPI_GET8(source) & 0x03) << info->value); - break; - - case ACPI_RSC_COUNT: - - item_count = ACPI_GET8(source); - ACPI_SET8(destination) = (u8) item_count; - - aml_length = - (u16) (aml_length + - (info->value * (item_count - 1))); - break; - - case ACPI_RSC_COUNT16: - - item_count = ACPI_GET16(source); - aml_length = (u16) (aml_length + item_count); - acpi_rs_set_resource_length(aml_length, aml); - break; - - case ACPI_RSC_LENGTH: - - acpi_rs_set_resource_length(info->value, aml); - break; - - case ACPI_RSC_MOVE8: - case ACPI_RSC_MOVE16: - case ACPI_RSC_MOVE32: - case ACPI_RSC_MOVE64: - - if (info->value) { - item_count = info->value; - } - acpi_rs_move_data(destination, source, item_count, - info->opcode); - break; - - case ACPI_RSC_ADDRESS: - - /* Set the Resource Type, General Flags, and Type-Specific Flags */ - - acpi_rs_set_address_common(aml, resource); - break; - - case ACPI_RSC_SOURCEX: - /* - * Optional resource_source (Index and String) - */ - aml_length = - acpi_rs_set_resource_source(aml, (acpi_rs_length) - aml_length, source); - acpi_rs_set_resource_length(aml_length, aml); - break; - - case ACPI_RSC_SOURCE: - /* - * Optional resource_source (Index and String). This is the more - * complicated case used by the Interrupt() macro - */ - aml_length = - acpi_rs_set_resource_source(aml, info->value, - source); - acpi_rs_set_resource_length(aml_length, aml); - break; - - case ACPI_RSC_BITMASK: - /* - * 8-bit encoded bitmask (DMA macro) - */ - ACPI_SET8(destination) = (u8) - acpi_rs_encode_bitmask(source, - *ACPI_ADD_PTR(u8, resource, - info->value)); - break; - - case ACPI_RSC_BITMASK16: - /* - * 16-bit encoded bitmask (IRQ macro) - */ - temp16 = acpi_rs_encode_bitmask(source, - *ACPI_ADD_PTR(u8, - resource, - info-> - value)); - ACPI_MOVE_16_TO_16(destination, &temp16); - break; - - case ACPI_RSC_EXIT_LE: - /* - * Control - Exit conversion if less than or equal - */ - if (item_count <= info->value) { - goto exit; - } - break; - - case ACPI_RSC_EXIT_NE: - /* - * Control - Exit conversion if not equal - */ - switch (COMPARE_OPCODE(info)) { - case ACPI_RSC_COMPARE_VALUE: - - if (*ACPI_ADD_PTR(u8, resource, - COMPARE_TARGET(info)) != - COMPARE_VALUE(info)) { - goto exit; - } - break; - - default: - - ACPI_ERROR((AE_INFO, - "Invalid conversion sub-opcode")); - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - break; - - case ACPI_RSC_EXIT_EQ: - /* - * Control - Exit conversion if equal - */ - if (*ACPI_ADD_PTR(u8, resource, - COMPARE_TARGET(info)) == - COMPARE_VALUE(info)) { - goto exit; - } - break; - - default: - - ACPI_ERROR((AE_INFO, "Invalid conversion opcode")); - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - count--; - info++; - } - - exit: - return_ACPI_STATUS(AE_OK); -} - -#if 0 -/* Previous resource validations */ - -if (aml->ext_address64.revision_iD != AML_RESOURCE_EXTENDED_ADDRESS_REVISION) { - return_ACPI_STATUS(AE_SUPPORT); -} - -if (resource->data.start_dpf.performance_robustness >= 3) { - return_ACPI_STATUS(AE_AML_BAD_RESOURCE_VALUE); -} - -if (((aml->irq.flags & 0x09) == 0x00) || ((aml->irq.flags & 0x09) == 0x09)) { - /* - * Only [active_high, edge_sensitive] or [active_low, level_sensitive] - * polarity/trigger interrupts are allowed (ACPI spec, section - * "IRQ Format"), so 0x00 and 0x09 are illegal. - */ - ACPI_ERROR((AE_INFO, - "Invalid interrupt polarity/trigger in resource list, %X", - aml->irq.flags)); - return_ACPI_STATUS(AE_BAD_DATA); -} - -resource->data.extended_irq.interrupt_count = temp8; -if (temp8 < 1) { - - /* Must have at least one IRQ */ - - return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH); -} - -if (resource->data.dma.transfer == 0x03) { - ACPI_ERROR((AE_INFO, "Invalid DMA.Transfer preference (3)")); - return_ACPI_STATUS(AE_BAD_DATA); -} -#endif diff --git a/drivers/acpi/resources/rsutils.c b/drivers/acpi/resources/rsutils.c deleted file mode 100644 index 7450105f8548..000000000000 --- a/drivers/acpi/resources/rsutils.c +++ /dev/null @@ -1,727 +0,0 @@ -/******************************************************************************* - * - * Module Name: rsutils - Utilities for the resource manager - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include - -#define _COMPONENT ACPI_RESOURCES -ACPI_MODULE_NAME("rsutils") - -/******************************************************************************* - * - * FUNCTION: acpi_rs_decode_bitmask - * - * PARAMETERS: Mask - Bitmask to decode - * List - Where the converted list is returned - * - * RETURN: Count of bits set (length of list) - * - * DESCRIPTION: Convert a bit mask into a list of values - * - ******************************************************************************/ -u8 acpi_rs_decode_bitmask(u16 mask, u8 * list) -{ - u8 i; - u8 bit_count; - - ACPI_FUNCTION_ENTRY(); - - /* Decode the mask bits */ - - for (i = 0, bit_count = 0; mask; i++) { - if (mask & 0x0001) { - list[bit_count] = i; - bit_count++; - } - - mask >>= 1; - } - - return (bit_count); -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_encode_bitmask - * - * PARAMETERS: List - List of values to encode - * Count - Length of list - * - * RETURN: Encoded bitmask - * - * DESCRIPTION: Convert a list of values to an encoded bitmask - * - ******************************************************************************/ - -u16 acpi_rs_encode_bitmask(u8 * list, u8 count) -{ - u32 i; - u16 mask; - - ACPI_FUNCTION_ENTRY(); - - /* Encode the list into a single bitmask */ - - for (i = 0, mask = 0; i < count; i++) { - mask |= (0x1 << list[i]); - } - - return mask; -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_move_data - * - * PARAMETERS: Destination - Pointer to the destination descriptor - * Source - Pointer to the source descriptor - * item_count - How many items to move - * move_type - Byte width - * - * RETURN: None - * - * DESCRIPTION: Move multiple data items from one descriptor to another. Handles - * alignment issues and endian issues if necessary, as configured - * via the ACPI_MOVE_* macros. (This is why a memcpy is not used) - * - ******************************************************************************/ - -void -acpi_rs_move_data(void *destination, void *source, u16 item_count, u8 move_type) -{ - u32 i; - - ACPI_FUNCTION_ENTRY(); - - /* One move per item */ - - for (i = 0; i < item_count; i++) { - switch (move_type) { - /* - * For the 8-bit case, we can perform the move all at once - * since there are no alignment or endian issues - */ - case ACPI_RSC_MOVE8: - ACPI_MEMCPY(destination, source, item_count); - return; - - /* - * 16-, 32-, and 64-bit cases must use the move macros that perform - * endian conversion and/or accomodate hardware that cannot perform - * misaligned memory transfers - */ - case ACPI_RSC_MOVE16: - ACPI_MOVE_16_TO_16(&ACPI_CAST_PTR(u16, destination)[i], - &ACPI_CAST_PTR(u16, source)[i]); - break; - - case ACPI_RSC_MOVE32: - ACPI_MOVE_32_TO_32(&ACPI_CAST_PTR(u32, destination)[i], - &ACPI_CAST_PTR(u32, source)[i]); - break; - - case ACPI_RSC_MOVE64: - ACPI_MOVE_64_TO_64(&ACPI_CAST_PTR(u64, destination)[i], - &ACPI_CAST_PTR(u64, source)[i]); - break; - - default: - return; - } - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_set_resource_length - * - * PARAMETERS: total_length - Length of the AML descriptor, including - * the header and length fields. - * Aml - Pointer to the raw AML descriptor - * - * RETURN: None - * - * DESCRIPTION: Set the resource_length field of an AML - * resource descriptor, both Large and Small descriptors are - * supported automatically. Note: Descriptor Type field must - * be valid. - * - ******************************************************************************/ - -void -acpi_rs_set_resource_length(acpi_rsdesc_size total_length, - union aml_resource *aml) -{ - acpi_rs_length resource_length; - - ACPI_FUNCTION_ENTRY(); - - /* Length is the total descriptor length minus the header length */ - - resource_length = (acpi_rs_length) - (total_length - acpi_ut_get_resource_header_length(aml)); - - /* Length is stored differently for large and small descriptors */ - - if (aml->small_header.descriptor_type & ACPI_RESOURCE_NAME_LARGE) { - - /* Large descriptor -- bytes 1-2 contain the 16-bit length */ - - ACPI_MOVE_16_TO_16(&aml->large_header.resource_length, - &resource_length); - } else { - /* Small descriptor -- bits 2:0 of byte 0 contain the length */ - - aml->small_header.descriptor_type = (u8) - - /* Clear any existing length, preserving descriptor type bits */ - ((aml->small_header. - descriptor_type & ~ACPI_RESOURCE_NAME_SMALL_LENGTH_MASK) - - | resource_length); - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_set_resource_header - * - * PARAMETERS: descriptor_type - Byte to be inserted as the type - * total_length - Length of the AML descriptor, including - * the header and length fields. - * Aml - Pointer to the raw AML descriptor - * - * RETURN: None - * - * DESCRIPTION: Set the descriptor_type and resource_length fields of an AML - * resource descriptor, both Large and Small descriptors are - * supported automatically - * - ******************************************************************************/ - -void -acpi_rs_set_resource_header(u8 descriptor_type, - acpi_rsdesc_size total_length, - union aml_resource *aml) -{ - ACPI_FUNCTION_ENTRY(); - - /* Set the Resource Type */ - - aml->small_header.descriptor_type = descriptor_type; - - /* Set the Resource Length */ - - acpi_rs_set_resource_length(total_length, aml); -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_strcpy - * - * PARAMETERS: Destination - Pointer to the destination string - * Source - Pointer to the source string - * - * RETURN: String length, including NULL terminator - * - * DESCRIPTION: Local string copy that returns the string length, saving a - * strcpy followed by a strlen. - * - ******************************************************************************/ - -static u16 acpi_rs_strcpy(char *destination, char *source) -{ - u16 i; - - ACPI_FUNCTION_ENTRY(); - - for (i = 0; source[i]; i++) { - destination[i] = source[i]; - } - - destination[i] = 0; - - /* Return string length including the NULL terminator */ - - return ((u16) (i + 1)); -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_get_resource_source - * - * PARAMETERS: resource_length - Length field of the descriptor - * minimum_length - Minimum length of the descriptor (minus - * any optional fields) - * resource_source - Where the resource_source is returned - * Aml - Pointer to the raw AML descriptor - * string_ptr - (optional) where to store the actual - * resource_source string - * - * RETURN: Length of the string plus NULL terminator, rounded up to native - * word boundary - * - * DESCRIPTION: Copy the optional resource_source data from a raw AML descriptor - * to an internal resource descriptor - * - ******************************************************************************/ - -acpi_rs_length -acpi_rs_get_resource_source(acpi_rs_length resource_length, - acpi_rs_length minimum_length, - struct acpi_resource_source * resource_source, - union aml_resource * aml, char *string_ptr) -{ - acpi_rsdesc_size total_length; - u8 *aml_resource_source; - - ACPI_FUNCTION_ENTRY(); - - total_length = - resource_length + sizeof(struct aml_resource_large_header); - aml_resource_source = ACPI_ADD_PTR(u8, aml, minimum_length); - - /* - * resource_source is present if the length of the descriptor is longer than - * the minimum length. - * - * Note: Some resource descriptors will have an additional null, so - * we add 1 to the minimum length. - */ - if (total_length > (acpi_rsdesc_size) (minimum_length + 1)) { - - /* Get the resource_source_index */ - - resource_source->index = aml_resource_source[0]; - - resource_source->string_ptr = string_ptr; - if (!string_ptr) { - /* - * String destination pointer is not specified; Set the String - * pointer to the end of the current resource_source structure. - */ - resource_source->string_ptr = - ACPI_ADD_PTR(char, resource_source, - sizeof(struct acpi_resource_source)); - } - - /* - * In order for the Resource length to be a multiple of the native - * word, calculate the length of the string (+1 for NULL terminator) - * and expand to the next word multiple. - * - * Zero the entire area of the buffer. - */ - total_length = (u32) - ACPI_STRLEN(ACPI_CAST_PTR(char, &aml_resource_source[1])) + 1; - total_length = (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(total_length); - - ACPI_MEMSET(resource_source->string_ptr, 0, total_length); - - /* Copy the resource_source string to the destination */ - - resource_source->string_length = - acpi_rs_strcpy(resource_source->string_ptr, - ACPI_CAST_PTR(char, - &aml_resource_source[1])); - - return ((acpi_rs_length) total_length); - } - - /* resource_source is not present */ - - resource_source->index = 0; - resource_source->string_length = 0; - resource_source->string_ptr = NULL; - return (0); -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_set_resource_source - * - * PARAMETERS: Aml - Pointer to the raw AML descriptor - * minimum_length - Minimum length of the descriptor (minus - * any optional fields) - * resource_source - Internal resource_source - - * - * RETURN: Total length of the AML descriptor - * - * DESCRIPTION: Convert an optional resource_source from internal format to a - * raw AML resource descriptor - * - ******************************************************************************/ - -acpi_rsdesc_size -acpi_rs_set_resource_source(union aml_resource * aml, - acpi_rs_length minimum_length, - struct acpi_resource_source * resource_source) -{ - u8 *aml_resource_source; - acpi_rsdesc_size descriptor_length; - - ACPI_FUNCTION_ENTRY(); - - descriptor_length = minimum_length; - - /* Non-zero string length indicates presence of a resource_source */ - - if (resource_source->string_length) { - - /* Point to the end of the AML descriptor */ - - aml_resource_source = ACPI_ADD_PTR(u8, aml, minimum_length); - - /* Copy the resource_source_index */ - - aml_resource_source[0] = (u8) resource_source->index; - - /* Copy the resource_source string */ - - ACPI_STRCPY(ACPI_CAST_PTR(char, &aml_resource_source[1]), - resource_source->string_ptr); - - /* - * Add the length of the string (+ 1 for null terminator) to the - * final descriptor length - */ - descriptor_length += - ((acpi_rsdesc_size) resource_source->string_length + 1); - } - - /* Return the new total length of the AML descriptor */ - - return (descriptor_length); -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_get_prt_method_data - * - * PARAMETERS: Node - Device node - * ret_buffer - Pointer to a buffer structure for the - * results - * - * RETURN: Status - * - * DESCRIPTION: This function is called to get the _PRT value of an object - * contained in an object specified by the handle passed in - * - * If the function fails an appropriate status will be returned - * and the contents of the callers buffer is undefined. - * - ******************************************************************************/ - -acpi_status -acpi_rs_get_prt_method_data(struct acpi_namespace_node * node, - struct acpi_buffer * ret_buffer) -{ - union acpi_operand_object *obj_desc; - acpi_status status; - - ACPI_FUNCTION_TRACE(rs_get_prt_method_data); - - /* Parameters guaranteed valid by caller */ - - /* Execute the method, no parameters */ - - status = acpi_ut_evaluate_object(node, METHOD_NAME__PRT, - ACPI_BTYPE_PACKAGE, &obj_desc); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * Create a resource linked list from the byte stream buffer that comes - * back from the _CRS method execution. - */ - status = acpi_rs_create_pci_routing_table(obj_desc, ret_buffer); - - /* On exit, we must delete the object returned by evaluate_object */ - - acpi_ut_remove_reference(obj_desc); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_get_crs_method_data - * - * PARAMETERS: Node - Device node - * ret_buffer - Pointer to a buffer structure for the - * results - * - * RETURN: Status - * - * DESCRIPTION: This function is called to get the _CRS value of an object - * contained in an object specified by the handle passed in - * - * If the function fails an appropriate status will be returned - * and the contents of the callers buffer is undefined. - * - ******************************************************************************/ - -acpi_status -acpi_rs_get_crs_method_data(struct acpi_namespace_node *node, - struct acpi_buffer *ret_buffer) -{ - union acpi_operand_object *obj_desc; - acpi_status status; - - ACPI_FUNCTION_TRACE(rs_get_crs_method_data); - - /* Parameters guaranteed valid by caller */ - - /* Execute the method, no parameters */ - - status = acpi_ut_evaluate_object(node, METHOD_NAME__CRS, - ACPI_BTYPE_BUFFER, &obj_desc); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * Make the call to create a resource linked list from the - * byte stream buffer that comes back from the _CRS method - * execution. - */ - status = acpi_rs_create_resource_list(obj_desc, ret_buffer); - - /* On exit, we must delete the object returned by evaluate_object */ - - acpi_ut_remove_reference(obj_desc); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_get_prs_method_data - * - * PARAMETERS: Node - Device node - * ret_buffer - Pointer to a buffer structure for the - * results - * - * RETURN: Status - * - * DESCRIPTION: This function is called to get the _PRS value of an object - * contained in an object specified by the handle passed in - * - * If the function fails an appropriate status will be returned - * and the contents of the callers buffer is undefined. - * - ******************************************************************************/ - -#ifdef ACPI_FUTURE_USAGE -acpi_status -acpi_rs_get_prs_method_data(struct acpi_namespace_node *node, - struct acpi_buffer *ret_buffer) -{ - union acpi_operand_object *obj_desc; - acpi_status status; - - ACPI_FUNCTION_TRACE(rs_get_prs_method_data); - - /* Parameters guaranteed valid by caller */ - - /* Execute the method, no parameters */ - - status = acpi_ut_evaluate_object(node, METHOD_NAME__PRS, - ACPI_BTYPE_BUFFER, &obj_desc); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * Make the call to create a resource linked list from the - * byte stream buffer that comes back from the _CRS method - * execution. - */ - status = acpi_rs_create_resource_list(obj_desc, ret_buffer); - - /* On exit, we must delete the object returned by evaluate_object */ - - acpi_ut_remove_reference(obj_desc); - return_ACPI_STATUS(status); -} -#endif /* ACPI_FUTURE_USAGE */ - -/******************************************************************************* - * - * FUNCTION: acpi_rs_get_method_data - * - * PARAMETERS: Handle - Handle to the containing object - * Path - Path to method, relative to Handle - * ret_buffer - Pointer to a buffer structure for the - * results - * - * RETURN: Status - * - * DESCRIPTION: This function is called to get the _CRS or _PRS value of an - * object contained in an object specified by the handle passed in - * - * If the function fails an appropriate status will be returned - * and the contents of the callers buffer is undefined. - * - ******************************************************************************/ - -acpi_status -acpi_rs_get_method_data(acpi_handle handle, - char *path, struct acpi_buffer *ret_buffer) -{ - union acpi_operand_object *obj_desc; - acpi_status status; - - ACPI_FUNCTION_TRACE(rs_get_method_data); - - /* Parameters guaranteed valid by caller */ - - /* Execute the method, no parameters */ - - status = - acpi_ut_evaluate_object(handle, path, ACPI_BTYPE_BUFFER, &obj_desc); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * Make the call to create a resource linked list from the - * byte stream buffer that comes back from the method - * execution. - */ - status = acpi_rs_create_resource_list(obj_desc, ret_buffer); - - /* On exit, we must delete the object returned by evaluate_object */ - - acpi_ut_remove_reference(obj_desc); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_set_srs_method_data - * - * PARAMETERS: Node - Device node - * in_buffer - Pointer to a buffer structure of the - * parameter - * - * RETURN: Status - * - * DESCRIPTION: This function is called to set the _SRS of an object contained - * in an object specified by the handle passed in - * - * If the function fails an appropriate status will be returned - * and the contents of the callers buffer is undefined. - * - * Note: Parameters guaranteed valid by caller - * - ******************************************************************************/ - -acpi_status -acpi_rs_set_srs_method_data(struct acpi_namespace_node *node, - struct acpi_buffer *in_buffer) -{ - struct acpi_evaluate_info *info; - union acpi_operand_object *args[2]; - acpi_status status; - struct acpi_buffer buffer; - - ACPI_FUNCTION_TRACE(rs_set_srs_method_data); - - /* Allocate and initialize the evaluation information block */ - - info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info)); - if (!info) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - info->prefix_node = node; - info->pathname = METHOD_NAME__SRS; - info->parameters = args; - info->flags = ACPI_IGNORE_RETURN_VALUE; - - /* - * The in_buffer parameter will point to a linked list of - * resource parameters. It needs to be formatted into a - * byte stream to be sent in as an input parameter to _SRS - * - * Convert the linked list into a byte stream - */ - buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; - status = acpi_rs_create_aml_resources(in_buffer->pointer, &buffer); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - /* Create and initialize the method parameter object */ - - args[0] = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER); - if (!args[0]) { - /* - * Must free the buffer allocated above (otherwise it is freed - * later) - */ - ACPI_FREE(buffer.pointer); - status = AE_NO_MEMORY; - goto cleanup; - } - - args[0]->buffer.length = (u32) buffer.length; - args[0]->buffer.pointer = buffer.pointer; - args[0]->common.flags = AOPOBJ_DATA_VALID; - args[1] = NULL; - - /* Execute the method, no return value is expected */ - - status = acpi_ns_evaluate(info); - - /* Clean up and return the status from acpi_ns_evaluate */ - - acpi_ut_remove_reference(args[0]); - - cleanup: - ACPI_FREE(info); - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/resources/rsxface.c b/drivers/acpi/resources/rsxface.c deleted file mode 100644 index 0a274356b23e..000000000000 --- a/drivers/acpi/resources/rsxface.c +++ /dev/null @@ -1,571 +0,0 @@ -/******************************************************************************* - * - * Module Name: rsxface - Public interfaces to the resource manager - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include - -#define _COMPONENT ACPI_RESOURCES -ACPI_MODULE_NAME("rsxface") - -/* Local macros for 16,32-bit to 64-bit conversion */ -#define ACPI_COPY_FIELD(out, in, field) ((out)->field = (in)->field) -#define ACPI_COPY_ADDRESS(out, in) \ - ACPI_COPY_FIELD(out, in, resource_type); \ - ACPI_COPY_FIELD(out, in, producer_consumer); \ - ACPI_COPY_FIELD(out, in, decode); \ - ACPI_COPY_FIELD(out, in, min_address_fixed); \ - ACPI_COPY_FIELD(out, in, max_address_fixed); \ - ACPI_COPY_FIELD(out, in, info); \ - ACPI_COPY_FIELD(out, in, granularity); \ - ACPI_COPY_FIELD(out, in, minimum); \ - ACPI_COPY_FIELD(out, in, maximum); \ - ACPI_COPY_FIELD(out, in, translation_offset); \ - ACPI_COPY_FIELD(out, in, address_length); \ - ACPI_COPY_FIELD(out, in, resource_source); -/* Local prototypes */ -static acpi_status -acpi_rs_match_vendor_resource(struct acpi_resource *resource, void *context); - -static acpi_status -acpi_rs_validate_parameters(acpi_handle device_handle, - struct acpi_buffer *buffer, - struct acpi_namespace_node **return_node); - -/******************************************************************************* - * - * FUNCTION: acpi_rs_validate_parameters - * - * PARAMETERS: device_handle - Handle to a device - * Buffer - Pointer to a data buffer - * return_node - Pointer to where the device node is returned - * - * RETURN: Status - * - * DESCRIPTION: Common parameter validation for resource interfaces - * - ******************************************************************************/ - -static acpi_status -acpi_rs_validate_parameters(acpi_handle device_handle, - struct acpi_buffer *buffer, - struct acpi_namespace_node **return_node) -{ - acpi_status status; - struct acpi_namespace_node *node; - - ACPI_FUNCTION_TRACE(rs_validate_parameters); - - /* - * Must have a valid handle to an ACPI device - */ - if (!device_handle) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - node = acpi_ns_map_handle_to_node(device_handle); - if (!node) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - if (node->type != ACPI_TYPE_DEVICE) { - return_ACPI_STATUS(AE_TYPE); - } - - /* - * Validate the user buffer object - * - * if there is a non-zero buffer length we also need a valid pointer in - * the buffer. If it's a zero buffer length, we'll be returning the - * needed buffer size (later), so keep going. - */ - status = acpi_ut_validate_buffer(buffer); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - *return_node = node; - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_get_irq_routing_table - * - * PARAMETERS: device_handle - Handle to the Bus device we are querying - * ret_buffer - Pointer to a buffer to receive the - * current resources for the device - * - * RETURN: Status - * - * DESCRIPTION: This function is called to get the IRQ routing table for a - * specific bus. The caller must first acquire a handle for the - * desired bus. The routine table is placed in the buffer pointed - * to by the ret_buffer variable parameter. - * - * If the function fails an appropriate status will be returned - * and the value of ret_buffer is undefined. - * - * This function attempts to execute the _PRT method contained in - * the object indicated by the passed device_handle. - * - ******************************************************************************/ - -acpi_status -acpi_get_irq_routing_table(acpi_handle device_handle, - struct acpi_buffer *ret_buffer) -{ - acpi_status status; - struct acpi_namespace_node *node; - - ACPI_FUNCTION_TRACE(acpi_get_irq_routing_table); - - /* Validate parameters then dispatch to internal routine */ - - status = acpi_rs_validate_parameters(device_handle, ret_buffer, &node); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - status = acpi_rs_get_prt_method_data(node, ret_buffer); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_irq_routing_table) - -/******************************************************************************* - * - * FUNCTION: acpi_get_current_resources - * - * PARAMETERS: device_handle - Handle to the device object for the - * device we are querying - * ret_buffer - Pointer to a buffer to receive the - * current resources for the device - * - * RETURN: Status - * - * DESCRIPTION: This function is called to get the current resources for a - * specific device. The caller must first acquire a handle for - * the desired device. The resource data is placed in the buffer - * pointed to by the ret_buffer variable parameter. - * - * If the function fails an appropriate status will be returned - * and the value of ret_buffer is undefined. - * - * This function attempts to execute the _CRS method contained in - * the object indicated by the passed device_handle. - * - ******************************************************************************/ -acpi_status -acpi_get_current_resources(acpi_handle device_handle, - struct acpi_buffer *ret_buffer) -{ - acpi_status status; - struct acpi_namespace_node *node; - - ACPI_FUNCTION_TRACE(acpi_get_current_resources); - - /* Validate parameters then dispatch to internal routine */ - - status = acpi_rs_validate_parameters(device_handle, ret_buffer, &node); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - status = acpi_rs_get_crs_method_data(node, ret_buffer); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_current_resources) -#ifdef ACPI_FUTURE_USAGE -/******************************************************************************* - * - * FUNCTION: acpi_get_possible_resources - * - * PARAMETERS: device_handle - Handle to the device object for the - * device we are querying - * ret_buffer - Pointer to a buffer to receive the - * resources for the device - * - * RETURN: Status - * - * DESCRIPTION: This function is called to get a list of the possible resources - * for a specific device. The caller must first acquire a handle - * for the desired device. The resource data is placed in the - * buffer pointed to by the ret_buffer variable. - * - * If the function fails an appropriate status will be returned - * and the value of ret_buffer is undefined. - * - ******************************************************************************/ -acpi_status -acpi_get_possible_resources(acpi_handle device_handle, - struct acpi_buffer *ret_buffer) -{ - acpi_status status; - struct acpi_namespace_node *node; - - ACPI_FUNCTION_TRACE(acpi_get_possible_resources); - - /* Validate parameters then dispatch to internal routine */ - - status = acpi_rs_validate_parameters(device_handle, ret_buffer, &node); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - status = acpi_rs_get_prs_method_data(node, ret_buffer); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_possible_resources) -#endif /* ACPI_FUTURE_USAGE */ -/******************************************************************************* - * - * FUNCTION: acpi_set_current_resources - * - * PARAMETERS: device_handle - Handle to the device object for the - * device we are setting resources - * in_buffer - Pointer to a buffer containing the - * resources to be set for the device - * - * RETURN: Status - * - * DESCRIPTION: This function is called to set the current resources for a - * specific device. The caller must first acquire a handle for - * the desired device. The resource data is passed to the routine - * the buffer pointed to by the in_buffer variable. - * - ******************************************************************************/ -acpi_status -acpi_set_current_resources(acpi_handle device_handle, - struct acpi_buffer *in_buffer) -{ - acpi_status status; - struct acpi_namespace_node *node; - - ACPI_FUNCTION_TRACE(acpi_set_current_resources); - - /* Validate the buffer, don't allow zero length */ - - if ((!in_buffer) || (!in_buffer->pointer) || (!in_buffer->length)) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Validate parameters then dispatch to internal routine */ - - status = acpi_rs_validate_parameters(device_handle, in_buffer, &node); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - status = acpi_rs_set_srs_method_data(node, in_buffer); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_set_current_resources) - -/****************************************************************************** - * - * FUNCTION: acpi_resource_to_address64 - * - * PARAMETERS: Resource - Pointer to a resource - * Out - Pointer to the users's return buffer - * (a struct acpi_resource_address64) - * - * RETURN: Status - * - * DESCRIPTION: If the resource is an address16, address32, or address64, - * copy it to the address64 return buffer. This saves the - * caller from having to duplicate code for different-sized - * addresses. - * - ******************************************************************************/ -acpi_status -acpi_resource_to_address64(struct acpi_resource *resource, - struct acpi_resource_address64 *out) -{ - struct acpi_resource_address16 *address16; - struct acpi_resource_address32 *address32; - - if (!resource || !out) { - return (AE_BAD_PARAMETER); - } - - /* Convert 16 or 32 address descriptor to 64 */ - - switch (resource->type) { - case ACPI_RESOURCE_TYPE_ADDRESS16: - - address16 = (struct acpi_resource_address16 *)&resource->data; - ACPI_COPY_ADDRESS(out, address16); - break; - - case ACPI_RESOURCE_TYPE_ADDRESS32: - - address32 = (struct acpi_resource_address32 *)&resource->data; - ACPI_COPY_ADDRESS(out, address32); - break; - - case ACPI_RESOURCE_TYPE_ADDRESS64: - - /* Simple copy for 64 bit source */ - - ACPI_MEMCPY(out, &resource->data, - sizeof(struct acpi_resource_address64)); - break; - - default: - return (AE_BAD_PARAMETER); - } - - return (AE_OK); -} - -ACPI_EXPORT_SYMBOL(acpi_resource_to_address64) - -/******************************************************************************* - * - * FUNCTION: acpi_get_vendor_resource - * - * PARAMETERS: device_handle - Handle for the parent device object - * Name - Method name for the parent resource - * (METHOD_NAME__CRS or METHOD_NAME__PRS) - * Uuid - Pointer to the UUID to be matched. - * includes both subtype and 16-byte UUID - * ret_buffer - Where the vendor resource is returned - * - * RETURN: Status - * - * DESCRIPTION: Walk a resource template for the specified evice to find a - * vendor-defined resource that matches the supplied UUID and - * UUID subtype. Returns a struct acpi_resource of type Vendor. - * - ******************************************************************************/ -acpi_status -acpi_get_vendor_resource(acpi_handle device_handle, - char *name, - struct acpi_vendor_uuid * uuid, - struct acpi_buffer * ret_buffer) -{ - struct acpi_vendor_walk_info info; - acpi_status status; - - /* Other parameters are validated by acpi_walk_resources */ - - if (!uuid || !ret_buffer) { - return (AE_BAD_PARAMETER); - } - - info.uuid = uuid; - info.buffer = ret_buffer; - info.status = AE_NOT_EXIST; - - /* Walk the _CRS or _PRS resource list for this device */ - - status = - acpi_walk_resources(device_handle, name, - acpi_rs_match_vendor_resource, &info); - if (ACPI_FAILURE(status)) { - return (status); - } - - return (info.status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_vendor_resource) - -/******************************************************************************* - * - * FUNCTION: acpi_rs_match_vendor_resource - * - * PARAMETERS: acpi_walk_resource_callback - * - * RETURN: Status - * - * DESCRIPTION: Match a vendor resource via the ACPI 3.0 UUID - * - ******************************************************************************/ -static acpi_status -acpi_rs_match_vendor_resource(struct acpi_resource *resource, void *context) -{ - struct acpi_vendor_walk_info *info = context; - struct acpi_resource_vendor_typed *vendor; - struct acpi_buffer *buffer; - acpi_status status; - - /* Ignore all descriptors except Vendor */ - - if (resource->type != ACPI_RESOURCE_TYPE_VENDOR) { - return (AE_OK); - } - - vendor = &resource->data.vendor_typed; - - /* - * For a valid match, these conditions must hold: - * - * 1) Length of descriptor data must be at least as long as a UUID struct - * 2) The UUID subtypes must match - * 3) The UUID data must match - */ - if ((vendor->byte_length < (ACPI_UUID_LENGTH + 1)) || - (vendor->uuid_subtype != info->uuid->subtype) || - (ACPI_MEMCMP(vendor->uuid, info->uuid->data, ACPI_UUID_LENGTH))) { - return (AE_OK); - } - - /* Validate/Allocate/Clear caller buffer */ - - buffer = info->buffer; - status = acpi_ut_initialize_buffer(buffer, resource->length); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* Found the correct resource, copy and return it */ - - ACPI_MEMCPY(buffer->pointer, resource, resource->length); - buffer->length = resource->length; - - /* Found the desired descriptor, terminate resource walk */ - - info->status = AE_OK; - return (AE_CTRL_TERMINATE); -} - -/******************************************************************************* - * - * FUNCTION: acpi_walk_resources - * - * PARAMETERS: device_handle - Handle to the device object for the - * device we are querying - * Name - Method name of the resources we want - * (METHOD_NAME__CRS or METHOD_NAME__PRS) - * user_function - Called for each resource - * Context - Passed to user_function - * - * RETURN: Status - * - * DESCRIPTION: Retrieves the current or possible resource list for the - * specified device. The user_function is called once for - * each resource in the list. - * - ******************************************************************************/ -acpi_status -acpi_walk_resources(acpi_handle device_handle, - char *name, - acpi_walk_resource_callback user_function, void *context) -{ - acpi_status status; - struct acpi_buffer buffer; - struct acpi_resource *resource; - struct acpi_resource *resource_end; - - ACPI_FUNCTION_TRACE(acpi_walk_resources); - - /* Parameter validation */ - - if (!device_handle || !user_function || !name || - (!ACPI_COMPARE_NAME(name, METHOD_NAME__CRS) && - !ACPI_COMPARE_NAME(name, METHOD_NAME__PRS))) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Get the _CRS or _PRS resource list */ - - buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; - status = acpi_rs_get_method_data(device_handle, name, &buffer); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Buffer now contains the resource list */ - - resource = ACPI_CAST_PTR(struct acpi_resource, buffer.pointer); - resource_end = - ACPI_ADD_PTR(struct acpi_resource, buffer.pointer, buffer.length); - - /* Walk the resource list until the end_tag is found (or buffer end) */ - - while (resource < resource_end) { - - /* Sanity check the resource */ - - if (resource->type > ACPI_RESOURCE_TYPE_MAX) { - status = AE_AML_INVALID_RESOURCE_TYPE; - break; - } - - /* Invoke the user function, abort on any error returned */ - - status = user_function(resource, context); - if (ACPI_FAILURE(status)) { - if (status == AE_CTRL_TERMINATE) { - - /* This is an OK termination by the user function */ - - status = AE_OK; - } - break; - } - - /* end_tag indicates end-of-list */ - - if (resource->type == ACPI_RESOURCE_TYPE_END_TAG) { - break; - } - - /* Get the next resource descriptor */ - - resource = - ACPI_ADD_PTR(struct acpi_resource, resource, - resource->length); - } - - ACPI_FREE(buffer.pointer); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_walk_resources) diff --git a/drivers/acpi/sleep.h b/drivers/acpi/sleep.h new file mode 100644 index 000000000000..cfaf8f5b0a14 --- /dev/null +++ b/drivers/acpi/sleep.h @@ -0,0 +1,7 @@ + +extern u8 sleep_states[]; +extern int acpi_suspend (u32 state); + +extern void acpi_enable_wakeup_device_prep(u8 sleep_state); +extern void acpi_enable_wakeup_device(u8 sleep_state); +extern void acpi_disable_wakeup_device(u8 sleep_state); diff --git a/drivers/acpi/sleep/Makefile b/drivers/acpi/sleep/Makefile deleted file mode 100644 index f1fb888c2d29..000000000000 --- a/drivers/acpi/sleep/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -obj-y := wakeup.o -obj-y += main.o -obj-$(CONFIG_ACPI_SLEEP) += proc.o - -EXTRA_CFLAGS += $(ACPI_CFLAGS) diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c deleted file mode 100644 index d8242772de92..000000000000 --- a/drivers/acpi/sleep/main.c +++ /dev/null @@ -1,696 +0,0 @@ -/* - * sleep.c - ACPI sleep support. - * - * Copyright (c) 2005 Alexey Starikovskiy - * Copyright (c) 2004 David Shaohua Li - * Copyright (c) 2000-2003 Patrick Mochel - * Copyright (c) 2003 Open Source Development Lab - * - * This file is released under the GPLv2. - * - */ - -#include -#include -#include -#include -#include -#include - -#include - -#include -#include -#include "sleep.h" - -u8 sleep_states[ACPI_S_STATE_COUNT]; - -static void acpi_sleep_tts_switch(u32 acpi_state) -{ - union acpi_object in_arg = { ACPI_TYPE_INTEGER }; - struct acpi_object_list arg_list = { 1, &in_arg }; - acpi_status status = AE_OK; - - in_arg.integer.value = acpi_state; - status = acpi_evaluate_object(NULL, "\\_TTS", &arg_list, NULL); - if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { - /* - * OS can't evaluate the _TTS object correctly. Some warning - * message will be printed. But it won't break anything. - */ - printk(KERN_NOTICE "Failure in evaluating _TTS object\n"); - } -} - -static int tts_notify_reboot(struct notifier_block *this, - unsigned long code, void *x) -{ - acpi_sleep_tts_switch(ACPI_STATE_S5); - return NOTIFY_DONE; -} - -static struct notifier_block tts_notifier = { - .notifier_call = tts_notify_reboot, - .next = NULL, - .priority = 0, -}; - -static int acpi_sleep_prepare(u32 acpi_state) -{ -#ifdef CONFIG_ACPI_SLEEP - /* do we have a wakeup address for S2 and S3? */ - if (acpi_state == ACPI_STATE_S3) { - if (!acpi_wakeup_address) { - return -EFAULT; - } - acpi_set_firmware_waking_vector( - (acpi_physical_address)acpi_wakeup_address); - - } - ACPI_FLUSH_CPU_CACHE(); - acpi_enable_wakeup_device_prep(acpi_state); -#endif - printk(KERN_INFO PREFIX "Preparing to enter system sleep state S%d\n", - acpi_state); - acpi_enter_sleep_state_prep(acpi_state); - return 0; -} - -#ifdef CONFIG_ACPI_SLEEP -static u32 acpi_target_sleep_state = ACPI_STATE_S0; -/* - * ACPI 1.0 wants us to execute _PTS before suspending devices, so we allow the - * user to request that behavior by using the 'acpi_old_suspend_ordering' - * kernel command line option that causes the following variable to be set. - */ -static bool old_suspend_ordering; - -void __init acpi_old_suspend_ordering(void) -{ - old_suspend_ordering = true; -} - -/* - * According to the ACPI specification the BIOS should make sure that ACPI is - * enabled and SCI_EN bit is set on wake-up from S1 - S3 sleep states. Still, - * some BIOSes don't do that and therefore we use acpi_enable() to enable ACPI - * on such systems during resume. Unfortunately that doesn't help in - * particularly pathological cases in which SCI_EN has to be set directly on - * resume, although the specification states very clearly that this flag is - * owned by the hardware. The set_sci_en_on_resume variable will be set in such - * cases. - */ -static bool set_sci_en_on_resume; - -/** - * acpi_pm_disable_gpes - Disable the GPEs. - */ -static int acpi_pm_disable_gpes(void) -{ - acpi_disable_all_gpes(); - return 0; -} - -/** - * __acpi_pm_prepare - Prepare the platform to enter the target state. - * - * If necessary, set the firmware waking vector and do arch-specific - * nastiness to get the wakeup code to the waking vector. - */ -static int __acpi_pm_prepare(void) -{ - int error = acpi_sleep_prepare(acpi_target_sleep_state); - - if (error) - acpi_target_sleep_state = ACPI_STATE_S0; - return error; -} - -/** - * acpi_pm_prepare - Prepare the platform to enter the target sleep - * state and disable the GPEs. - */ -static int acpi_pm_prepare(void) -{ - int error = __acpi_pm_prepare(); - - if (!error) - acpi_disable_all_gpes(); - return error; -} - -/** - * acpi_pm_finish - Instruct the platform to leave a sleep state. - * - * This is called after we wake back up (or if entering the sleep state - * failed). - */ -static void acpi_pm_finish(void) -{ - u32 acpi_state = acpi_target_sleep_state; - - if (acpi_state == ACPI_STATE_S0) - return; - - printk(KERN_INFO PREFIX "Waking up from system sleep state S%d\n", - acpi_state); - acpi_disable_wakeup_device(acpi_state); - acpi_leave_sleep_state(acpi_state); - - /* reset firmware waking vector */ - acpi_set_firmware_waking_vector((acpi_physical_address) 0); - - acpi_target_sleep_state = ACPI_STATE_S0; -} - -/** - * acpi_pm_end - Finish up suspend sequence. - */ -static void acpi_pm_end(void) -{ - /* - * This is necessary in case acpi_pm_finish() is not called during a - * failing transition to a sleep state. - */ - acpi_target_sleep_state = ACPI_STATE_S0; - acpi_sleep_tts_switch(acpi_target_sleep_state); -} -#else /* !CONFIG_ACPI_SLEEP */ -#define acpi_target_sleep_state ACPI_STATE_S0 -#endif /* CONFIG_ACPI_SLEEP */ - -#ifdef CONFIG_SUSPEND -extern void do_suspend_lowlevel(void); - -static u32 acpi_suspend_states[] = { - [PM_SUSPEND_ON] = ACPI_STATE_S0, - [PM_SUSPEND_STANDBY] = ACPI_STATE_S1, - [PM_SUSPEND_MEM] = ACPI_STATE_S3, - [PM_SUSPEND_MAX] = ACPI_STATE_S5 -}; - -/** - * acpi_suspend_begin - Set the target system sleep state to the state - * associated with given @pm_state, if supported. - */ -static int acpi_suspend_begin(suspend_state_t pm_state) -{ - u32 acpi_state = acpi_suspend_states[pm_state]; - int error = 0; - - if (sleep_states[acpi_state]) { - acpi_target_sleep_state = acpi_state; - acpi_sleep_tts_switch(acpi_target_sleep_state); - } else { - printk(KERN_ERR "ACPI does not support this state: %d\n", - pm_state); - error = -ENOSYS; - } - return error; -} - -/** - * acpi_suspend_enter - Actually enter a sleep state. - * @pm_state: ignored - * - * Flush caches and go to sleep. For STR we have to call arch-specific - * assembly, which in turn call acpi_enter_sleep_state(). - * It's unfortunate, but it works. Please fix if you're feeling frisky. - */ -static int acpi_suspend_enter(suspend_state_t pm_state) -{ - acpi_status status = AE_OK; - unsigned long flags = 0; - u32 acpi_state = acpi_target_sleep_state; - - ACPI_FLUSH_CPU_CACHE(); - - /* Do arch specific saving of state. */ - if (acpi_state == ACPI_STATE_S3) { - int error = acpi_save_state_mem(); - - if (error) - return error; - } - - local_irq_save(flags); - acpi_enable_wakeup_device(acpi_state); - switch (acpi_state) { - case ACPI_STATE_S1: - barrier(); - status = acpi_enter_sleep_state(acpi_state); - break; - - case ACPI_STATE_S3: - do_suspend_lowlevel(); - break; - } - - /* If ACPI is not enabled by the BIOS, we need to enable it here. */ - if (set_sci_en_on_resume) - acpi_set_register(ACPI_BITREG_SCI_ENABLE, 1); - else - acpi_enable(); - - /* Reprogram control registers and execute _BFS */ - acpi_leave_sleep_state_prep(acpi_state); - - /* ACPI 3.0 specs (P62) says that it's the responsibility - * of the OSPM to clear the status bit [ implying that the - * POWER_BUTTON event should not reach userspace ] - */ - if (ACPI_SUCCESS(status) && (acpi_state == ACPI_STATE_S3)) - acpi_clear_event(ACPI_EVENT_POWER_BUTTON); - - /* - * Disable and clear GPE status before interrupt is enabled. Some GPEs - * (like wakeup GPE) haven't handler, this can avoid such GPE misfire. - * acpi_leave_sleep_state will reenable specific GPEs later - */ - acpi_disable_all_gpes(); - - local_irq_restore(flags); - printk(KERN_DEBUG "Back to C!\n"); - - /* restore processor state */ - if (acpi_state == ACPI_STATE_S3) - acpi_restore_state_mem(); - - return ACPI_SUCCESS(status) ? 0 : -EFAULT; -} - -static int acpi_suspend_state_valid(suspend_state_t pm_state) -{ - u32 acpi_state; - - switch (pm_state) { - case PM_SUSPEND_ON: - case PM_SUSPEND_STANDBY: - case PM_SUSPEND_MEM: - acpi_state = acpi_suspend_states[pm_state]; - - return sleep_states[acpi_state]; - default: - return 0; - } -} - -static struct platform_suspend_ops acpi_suspend_ops = { - .valid = acpi_suspend_state_valid, - .begin = acpi_suspend_begin, - .prepare = acpi_pm_prepare, - .enter = acpi_suspend_enter, - .finish = acpi_pm_finish, - .end = acpi_pm_end, -}; - -/** - * acpi_suspend_begin_old - Set the target system sleep state to the - * state associated with given @pm_state, if supported, and - * execute the _PTS control method. This function is used if the - * pre-ACPI 2.0 suspend ordering has been requested. - */ -static int acpi_suspend_begin_old(suspend_state_t pm_state) -{ - int error = acpi_suspend_begin(pm_state); - - if (!error) - error = __acpi_pm_prepare(); - return error; -} - -/* - * The following callbacks are used if the pre-ACPI 2.0 suspend ordering has - * been requested. - */ -static struct platform_suspend_ops acpi_suspend_ops_old = { - .valid = acpi_suspend_state_valid, - .begin = acpi_suspend_begin_old, - .prepare = acpi_pm_disable_gpes, - .enter = acpi_suspend_enter, - .finish = acpi_pm_finish, - .end = acpi_pm_end, - .recover = acpi_pm_finish, -}; - -static int __init init_old_suspend_ordering(const struct dmi_system_id *d) -{ - old_suspend_ordering = true; - return 0; -} - -static int __init init_set_sci_en_on_resume(const struct dmi_system_id *d) -{ - set_sci_en_on_resume = true; - return 0; -} - -static struct dmi_system_id __initdata acpisleep_dmi_table[] = { - { - .callback = init_old_suspend_ordering, - .ident = "Abit KN9 (nForce4 variant)", - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "http://www.abit.com.tw/"), - DMI_MATCH(DMI_BOARD_NAME, "KN9 Series(NF-CK804)"), - }, - }, - { - .callback = init_old_suspend_ordering, - .ident = "HP xw4600 Workstation", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), - DMI_MATCH(DMI_PRODUCT_NAME, "HP xw4600 Workstation"), - }, - }, - { - .callback = init_set_sci_en_on_resume, - .ident = "Apple MacBook 1,1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBook1,1"), - }, - }, - { - .callback = init_set_sci_en_on_resume, - .ident = "Apple MacMini 1,1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "Macmini1,1"), - }, - }, - {}, -}; -#endif /* CONFIG_SUSPEND */ - -#ifdef CONFIG_HIBERNATION -static unsigned long s4_hardware_signature; -static struct acpi_table_facs *facs; -static bool nosigcheck; - -void __init acpi_no_s4_hw_signature(void) -{ - nosigcheck = true; -} - -static int acpi_hibernation_begin(void) -{ - acpi_target_sleep_state = ACPI_STATE_S4; - acpi_sleep_tts_switch(acpi_target_sleep_state); - return 0; -} - -static int acpi_hibernation_enter(void) -{ - acpi_status status = AE_OK; - unsigned long flags = 0; - - ACPI_FLUSH_CPU_CACHE(); - - local_irq_save(flags); - acpi_enable_wakeup_device(ACPI_STATE_S4); - /* This shouldn't return. If it returns, we have a problem */ - status = acpi_enter_sleep_state(ACPI_STATE_S4); - /* Reprogram control registers and execute _BFS */ - acpi_leave_sleep_state_prep(ACPI_STATE_S4); - local_irq_restore(flags); - - return ACPI_SUCCESS(status) ? 0 : -EFAULT; -} - -static void acpi_hibernation_leave(void) -{ - /* - * If ACPI is not enabled by the BIOS and the boot kernel, we need to - * enable it here. - */ - acpi_enable(); - /* Reprogram control registers and execute _BFS */ - acpi_leave_sleep_state_prep(ACPI_STATE_S4); - /* Check the hardware signature */ - if (facs && s4_hardware_signature != facs->hardware_signature) { - printk(KERN_EMERG "ACPI: Hardware changed while hibernated, " - "cannot resume!\n"); - panic("ACPI S4 hardware signature mismatch"); - } -} - -static void acpi_pm_enable_gpes(void) -{ - acpi_enable_all_runtime_gpes(); -} - -static struct platform_hibernation_ops acpi_hibernation_ops = { - .begin = acpi_hibernation_begin, - .end = acpi_pm_end, - .pre_snapshot = acpi_pm_prepare, - .finish = acpi_pm_finish, - .prepare = acpi_pm_prepare, - .enter = acpi_hibernation_enter, - .leave = acpi_hibernation_leave, - .pre_restore = acpi_pm_disable_gpes, - .restore_cleanup = acpi_pm_enable_gpes, -}; - -/** - * acpi_hibernation_begin_old - Set the target system sleep state to - * ACPI_STATE_S4 and execute the _PTS control method. This - * function is used if the pre-ACPI 2.0 suspend ordering has been - * requested. - */ -static int acpi_hibernation_begin_old(void) -{ - int error; - /* - * The _TTS object should always be evaluated before the _PTS object. - * When the old_suspended_ordering is true, the _PTS object is - * evaluated in the acpi_sleep_prepare. - */ - acpi_sleep_tts_switch(ACPI_STATE_S4); - - error = acpi_sleep_prepare(ACPI_STATE_S4); - - if (!error) - acpi_target_sleep_state = ACPI_STATE_S4; - return error; -} - -/* - * The following callbacks are used if the pre-ACPI 2.0 suspend ordering has - * been requested. - */ -static struct platform_hibernation_ops acpi_hibernation_ops_old = { - .begin = acpi_hibernation_begin_old, - .end = acpi_pm_end, - .pre_snapshot = acpi_pm_disable_gpes, - .finish = acpi_pm_finish, - .prepare = acpi_pm_disable_gpes, - .enter = acpi_hibernation_enter, - .leave = acpi_hibernation_leave, - .pre_restore = acpi_pm_disable_gpes, - .restore_cleanup = acpi_pm_enable_gpes, - .recover = acpi_pm_finish, -}; -#endif /* CONFIG_HIBERNATION */ - -int acpi_suspend(u32 acpi_state) -{ - suspend_state_t states[] = { - [1] = PM_SUSPEND_STANDBY, - [3] = PM_SUSPEND_MEM, - [5] = PM_SUSPEND_MAX - }; - - if (acpi_state < 6 && states[acpi_state]) - return pm_suspend(states[acpi_state]); - if (acpi_state == 4) - return hibernate(); - return -EINVAL; -} - -#ifdef CONFIG_PM_SLEEP -/** - * acpi_pm_device_sleep_state - return preferred power state of ACPI device - * in the system sleep state given by %acpi_target_sleep_state - * @dev: device to examine; its driver model wakeup flags control - * whether it should be able to wake up the system - * @d_min_p: used to store the upper limit of allowed states range - * Return value: preferred power state of the device on success, -ENODEV on - * failure (ie. if there's no 'struct acpi_device' for @dev) - * - * Find the lowest power (highest number) ACPI device power state that - * device @dev can be in while the system is in the sleep state represented - * by %acpi_target_sleep_state. If @wake is nonzero, the device should be - * able to wake up the system from this sleep state. If @d_min_p is set, - * the highest power (lowest number) device power state of @dev allowed - * in this system sleep state is stored at the location pointed to by it. - * - * The caller must ensure that @dev is valid before using this function. - * The caller is also responsible for figuring out if the device is - * supposed to be able to wake up the system and passing this information - * via @wake. - */ - -int acpi_pm_device_sleep_state(struct device *dev, int *d_min_p) -{ - acpi_handle handle = DEVICE_ACPI_HANDLE(dev); - struct acpi_device *adev; - char acpi_method[] = "_SxD"; - unsigned long long d_min, d_max; - - if (!handle || ACPI_FAILURE(acpi_bus_get_device(handle, &adev))) { - printk(KERN_DEBUG "ACPI handle has no context!\n"); - return -ENODEV; - } - - acpi_method[2] = '0' + acpi_target_sleep_state; - /* - * If the sleep state is S0, we will return D3, but if the device has - * _S0W, we will use the value from _S0W - */ - d_min = ACPI_STATE_D0; - d_max = ACPI_STATE_D3; - - /* - * If present, _SxD methods return the minimum D-state (highest power - * state) we can use for the corresponding S-states. Otherwise, the - * minimum D-state is D0 (ACPI 3.x). - * - * NOTE: We rely on acpi_evaluate_integer() not clobbering the integer - * provided -- that's our fault recovery, we ignore retval. - */ - if (acpi_target_sleep_state > ACPI_STATE_S0) - acpi_evaluate_integer(handle, acpi_method, NULL, &d_min); - - /* - * If _PRW says we can wake up the system from the target sleep state, - * the D-state returned by _SxD is sufficient for that (we assume a - * wakeup-aware driver if wake is set). Still, if _SxW exists - * (ACPI 3.x), it should return the maximum (lowest power) D-state that - * can wake the system. _S0W may be valid, too. - */ - if (acpi_target_sleep_state == ACPI_STATE_S0 || - (device_may_wakeup(dev) && adev->wakeup.state.enabled && - adev->wakeup.sleep_state <= acpi_target_sleep_state)) { - acpi_status status; - - acpi_method[3] = 'W'; - status = acpi_evaluate_integer(handle, acpi_method, NULL, - &d_max); - if (ACPI_FAILURE(status)) { - d_max = d_min; - } else if (d_max < d_min) { - /* Warn the user of the broken DSDT */ - printk(KERN_WARNING "ACPI: Wrong value from %s\n", - acpi_method); - /* Sanitize it */ - d_min = d_max; - } - } - - if (d_min_p) - *d_min_p = d_min; - return d_max; -} - -/** - * acpi_pm_device_sleep_wake - enable or disable the system wake-up - * capability of given device - * @dev: device to handle - * @enable: 'true' - enable, 'false' - disable the wake-up capability - */ -int acpi_pm_device_sleep_wake(struct device *dev, bool enable) -{ - acpi_handle handle; - struct acpi_device *adev; - - if (!device_may_wakeup(dev)) - return -EINVAL; - - handle = DEVICE_ACPI_HANDLE(dev); - if (!handle || ACPI_FAILURE(acpi_bus_get_device(handle, &adev))) { - printk(KERN_DEBUG "ACPI handle has no context!\n"); - return -ENODEV; - } - - return enable ? - acpi_enable_wakeup_device_power(adev, acpi_target_sleep_state) : - acpi_disable_wakeup_device_power(adev); -} -#endif - -static void acpi_power_off_prepare(void) -{ - /* Prepare to power off the system */ - acpi_sleep_prepare(ACPI_STATE_S5); - acpi_disable_all_gpes(); -} - -static void acpi_power_off(void) -{ - /* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */ - printk("%s called\n", __func__); - local_irq_disable(); - acpi_enable_wakeup_device(ACPI_STATE_S5); - acpi_enter_sleep_state(ACPI_STATE_S5); -} - -int __init acpi_sleep_init(void) -{ - acpi_status status; - u8 type_a, type_b; -#ifdef CONFIG_SUSPEND - int i = 0; - - dmi_check_system(acpisleep_dmi_table); -#endif - - if (acpi_disabled) - return 0; - - sleep_states[ACPI_STATE_S0] = 1; - printk(KERN_INFO PREFIX "(supports S0"); - -#ifdef CONFIG_SUSPEND - for (i = ACPI_STATE_S1; i < ACPI_STATE_S4; i++) { - status = acpi_get_sleep_type_data(i, &type_a, &type_b); - if (ACPI_SUCCESS(status)) { - sleep_states[i] = 1; - printk(" S%d", i); - } - } - - suspend_set_ops(old_suspend_ordering ? - &acpi_suspend_ops_old : &acpi_suspend_ops); -#endif - -#ifdef CONFIG_HIBERNATION - status = acpi_get_sleep_type_data(ACPI_STATE_S4, &type_a, &type_b); - if (ACPI_SUCCESS(status)) { - hibernation_set_ops(old_suspend_ordering ? - &acpi_hibernation_ops_old : &acpi_hibernation_ops); - sleep_states[ACPI_STATE_S4] = 1; - printk(" S4"); - if (!nosigcheck) { - acpi_get_table(ACPI_SIG_FACS, 1, - (struct acpi_table_header **)&facs); - if (facs) - s4_hardware_signature = - facs->hardware_signature; - } - } -#endif - status = acpi_get_sleep_type_data(ACPI_STATE_S5, &type_a, &type_b); - if (ACPI_SUCCESS(status)) { - sleep_states[ACPI_STATE_S5] = 1; - printk(" S5"); - pm_power_off_prepare = acpi_power_off_prepare; - pm_power_off = acpi_power_off; - } - printk(")\n"); - /* - * Register the tts_notifier to reboot notifier list so that the _TTS - * object can also be evaluated when the system enters S5. - */ - register_reboot_notifier(&tts_notifier); - return 0; -} diff --git a/drivers/acpi/sleep/proc.c b/drivers/acpi/sleep/proc.c deleted file mode 100644 index 1c4851ff2657..000000000000 --- a/drivers/acpi/sleep/proc.c +++ /dev/null @@ -1,520 +0,0 @@ -#include -#include -#include -#include -#include - -#include -#include - -#ifdef CONFIG_X86 -#include -#endif - -#include "sleep.h" - -#define _COMPONENT ACPI_SYSTEM_COMPONENT - -/* - * this file provides support for: - * /proc/acpi/sleep - * /proc/acpi/alarm - * /proc/acpi/wakeup - */ - -ACPI_MODULE_NAME("sleep") -#ifdef CONFIG_ACPI_PROCFS -static int acpi_system_sleep_seq_show(struct seq_file *seq, void *offset) -{ - int i; - - for (i = 0; i <= ACPI_STATE_S5; i++) { - if (sleep_states[i]) { - seq_printf(seq, "S%d ", i); - } - } - - seq_puts(seq, "\n"); - - return 0; -} - -static int acpi_system_sleep_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_system_sleep_seq_show, PDE(inode)->data); -} - -static ssize_t -acpi_system_write_sleep(struct file *file, - const char __user * buffer, size_t count, loff_t * ppos) -{ - char str[12]; - u32 state = 0; - int error = 0; - - if (count > sizeof(str) - 1) - goto Done; - memset(str, 0, sizeof(str)); - if (copy_from_user(str, buffer, count)) - return -EFAULT; - - /* Check for S4 bios request */ - if (!strcmp(str, "4b")) { - error = acpi_suspend(4); - goto Done; - } - state = simple_strtoul(str, NULL, 0); -#ifdef CONFIG_HIBERNATION - if (state == 4) { - error = hibernate(); - goto Done; - } -#endif - error = acpi_suspend(state); - Done: - return error ? error : count; -} -#endif /* CONFIG_ACPI_PROCFS */ - -#if defined(CONFIG_RTC_DRV_CMOS) || defined(CONFIG_RTC_DRV_CMOS_MODULE) || !defined(CONFIG_X86) -/* use /sys/class/rtc/rtcX/wakealarm instead; it's not ACPI-specific */ -#else -#define HAVE_ACPI_LEGACY_ALARM -#endif - -#ifdef HAVE_ACPI_LEGACY_ALARM - -static int acpi_system_alarm_seq_show(struct seq_file *seq, void *offset) -{ - u32 sec, min, hr; - u32 day, mo, yr, cent = 0; - unsigned char rtc_control = 0; - unsigned long flags; - - spin_lock_irqsave(&rtc_lock, flags); - - sec = CMOS_READ(RTC_SECONDS_ALARM); - min = CMOS_READ(RTC_MINUTES_ALARM); - hr = CMOS_READ(RTC_HOURS_ALARM); - rtc_control = CMOS_READ(RTC_CONTROL); - - /* If we ever get an FACP with proper values... */ - if (acpi_gbl_FADT.day_alarm) - /* ACPI spec: only low 6 its should be cared */ - day = CMOS_READ(acpi_gbl_FADT.day_alarm) & 0x3F; - else - day = CMOS_READ(RTC_DAY_OF_MONTH); - if (acpi_gbl_FADT.month_alarm) - mo = CMOS_READ(acpi_gbl_FADT.month_alarm); - else - mo = CMOS_READ(RTC_MONTH); - if (acpi_gbl_FADT.century) - cent = CMOS_READ(acpi_gbl_FADT.century); - - yr = CMOS_READ(RTC_YEAR); - - spin_unlock_irqrestore(&rtc_lock, flags); - - if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) { - sec = bcd2bin(sec); - min = bcd2bin(min); - hr = bcd2bin(hr); - day = bcd2bin(day); - mo = bcd2bin(mo); - yr = bcd2bin(yr); - cent = bcd2bin(cent); - } - - /* we're trusting the FADT (see above) */ - if (!acpi_gbl_FADT.century) - /* If we're not trusting the FADT, we should at least make it - * right for _this_ century... ehm, what is _this_ century? - * - * TBD: - * ASAP: find piece of code in the kernel, e.g. star tracker driver, - * which we can trust to determine the century correctly. Atom - * watch driver would be nice, too... - * - * if that has not happened, change for first release in 2050: - * if (yr<50) - * yr += 2100; - * else - * yr += 2000; // current line of code - * - * if that has not happened either, please do on 2099/12/31:23:59:59 - * s/2000/2100 - * - */ - yr += 2000; - else - yr += cent * 100; - - seq_printf(seq, "%4.4u-", yr); - (mo > 12) ? seq_puts(seq, "**-") : seq_printf(seq, "%2.2u-", mo); - (day > 31) ? seq_puts(seq, "** ") : seq_printf(seq, "%2.2u ", day); - (hr > 23) ? seq_puts(seq, "**:") : seq_printf(seq, "%2.2u:", hr); - (min > 59) ? seq_puts(seq, "**:") : seq_printf(seq, "%2.2u:", min); - (sec > 59) ? seq_puts(seq, "**\n") : seq_printf(seq, "%2.2u\n", sec); - - return 0; -} - -static int acpi_system_alarm_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_system_alarm_seq_show, PDE(inode)->data); -} - -static int get_date_field(char **p, u32 * value) -{ - char *next = NULL; - char *string_end = NULL; - int result = -EINVAL; - - /* - * Try to find delimeter, only to insert null. The end of the - * string won't have one, but is still valid. - */ - if (*p == NULL) - return result; - - next = strpbrk(*p, "- :"); - if (next) - *next++ = '\0'; - - *value = simple_strtoul(*p, &string_end, 10); - - /* Signal success if we got a good digit */ - if (string_end != *p) - result = 0; - - if (next) - *p = next; - else - *p = NULL; - - return result; -} - -/* Read a possibly BCD register, always return binary */ -static u32 cmos_bcd_read(int offset, int rtc_control) -{ - u32 val = CMOS_READ(offset); - if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) - val = bcd2bin(val); - return val; -} - -/* Write binary value into possibly BCD register */ -static void cmos_bcd_write(u32 val, int offset, int rtc_control) -{ - if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) - val = bin2bcd(val); - CMOS_WRITE(val, offset); -} - -static ssize_t -acpi_system_write_alarm(struct file *file, - const char __user * buffer, size_t count, loff_t * ppos) -{ - int result = 0; - char alarm_string[30] = { '\0' }; - char *p = alarm_string; - u32 sec, min, hr, day, mo, yr; - int adjust = 0; - unsigned char rtc_control = 0; - - if (count > sizeof(alarm_string) - 1) - return -EINVAL; - - if (copy_from_user(alarm_string, buffer, count)) - return -EFAULT; - - alarm_string[count] = '\0'; - - /* check for time adjustment */ - if (alarm_string[0] == '+') { - p++; - adjust = 1; - } - - if ((result = get_date_field(&p, &yr))) - goto end; - if ((result = get_date_field(&p, &mo))) - goto end; - if ((result = get_date_field(&p, &day))) - goto end; - if ((result = get_date_field(&p, &hr))) - goto end; - if ((result = get_date_field(&p, &min))) - goto end; - if ((result = get_date_field(&p, &sec))) - goto end; - - spin_lock_irq(&rtc_lock); - - rtc_control = CMOS_READ(RTC_CONTROL); - - if (adjust) { - yr += cmos_bcd_read(RTC_YEAR, rtc_control); - mo += cmos_bcd_read(RTC_MONTH, rtc_control); - day += cmos_bcd_read(RTC_DAY_OF_MONTH, rtc_control); - hr += cmos_bcd_read(RTC_HOURS, rtc_control); - min += cmos_bcd_read(RTC_MINUTES, rtc_control); - sec += cmos_bcd_read(RTC_SECONDS, rtc_control); - } - - spin_unlock_irq(&rtc_lock); - - if (sec > 59) { - min += sec/60; - sec = sec%60; - } - if (min > 59) { - hr += min/60; - min = min%60; - } - if (hr > 23) { - day += hr/24; - hr = hr%24; - } - if (day > 31) { - mo += day/32; - day = day%32; - } - if (mo > 12) { - yr += mo/13; - mo = mo%13; - } - - spin_lock_irq(&rtc_lock); - /* - * Disable alarm interrupt before setting alarm timer or else - * when ACPI_EVENT_RTC is enabled, a spurious ACPI interrupt occurs - */ - rtc_control &= ~RTC_AIE; - CMOS_WRITE(rtc_control, RTC_CONTROL); - CMOS_READ(RTC_INTR_FLAGS); - - /* write the fields the rtc knows about */ - cmos_bcd_write(hr, RTC_HOURS_ALARM, rtc_control); - cmos_bcd_write(min, RTC_MINUTES_ALARM, rtc_control); - cmos_bcd_write(sec, RTC_SECONDS_ALARM, rtc_control); - - /* - * If the system supports an enhanced alarm it will have non-zero - * offsets into the CMOS RAM here -- which for some reason are pointing - * to the RTC area of memory. - */ - if (acpi_gbl_FADT.day_alarm) - cmos_bcd_write(day, acpi_gbl_FADT.day_alarm, rtc_control); - if (acpi_gbl_FADT.month_alarm) - cmos_bcd_write(mo, acpi_gbl_FADT.month_alarm, rtc_control); - if (acpi_gbl_FADT.century) { - if (adjust) - yr += cmos_bcd_read(acpi_gbl_FADT.century, rtc_control) * 100; - cmos_bcd_write(yr / 100, acpi_gbl_FADT.century, rtc_control); - } - /* enable the rtc alarm interrupt */ - rtc_control |= RTC_AIE; - CMOS_WRITE(rtc_control, RTC_CONTROL); - CMOS_READ(RTC_INTR_FLAGS); - - spin_unlock_irq(&rtc_lock); - - acpi_clear_event(ACPI_EVENT_RTC); - acpi_enable_event(ACPI_EVENT_RTC, 0); - - *ppos += count; - - result = 0; - end: - return result ? result : count; -} -#endif /* HAVE_ACPI_LEGACY_ALARM */ - -extern struct list_head acpi_wakeup_device_list; -extern spinlock_t acpi_device_lock; - -static int -acpi_system_wakeup_device_seq_show(struct seq_file *seq, void *offset) -{ - struct list_head *node, *next; - - seq_printf(seq, "Device\tS-state\t Status Sysfs node\n"); - - spin_lock(&acpi_device_lock); - list_for_each_safe(node, next, &acpi_wakeup_device_list) { - struct acpi_device *dev = - container_of(node, struct acpi_device, wakeup_list); - struct device *ldev; - - if (!dev->wakeup.flags.valid) - continue; - spin_unlock(&acpi_device_lock); - - ldev = acpi_get_physical_device(dev->handle); - seq_printf(seq, "%s\t S%d\t%c%-8s ", - dev->pnp.bus_id, - (u32) dev->wakeup.sleep_state, - dev->wakeup.flags.run_wake ? '*' : ' ', - dev->wakeup.state.enabled ? "enabled" : "disabled"); - if (ldev) - seq_printf(seq, "%s:%s", - ldev->bus ? ldev->bus->name : "no-bus", - dev_name(ldev)); - seq_printf(seq, "\n"); - put_device(ldev); - - spin_lock(&acpi_device_lock); - } - spin_unlock(&acpi_device_lock); - return 0; -} - -static void physical_device_enable_wakeup(struct acpi_device *adev) -{ - struct device *dev = acpi_get_physical_device(adev->handle); - - if (dev && device_can_wakeup(dev)) - device_set_wakeup_enable(dev, adev->wakeup.state.enabled); -} - -static ssize_t -acpi_system_write_wakeup_device(struct file *file, - const char __user * buffer, - size_t count, loff_t * ppos) -{ - struct list_head *node, *next; - char strbuf[5]; - char str[5] = ""; - int len = count; - struct acpi_device *found_dev = NULL; - - if (len > 4) - len = 4; - - if (copy_from_user(strbuf, buffer, len)) - return -EFAULT; - strbuf[len] = '\0'; - sscanf(strbuf, "%s", str); - - spin_lock(&acpi_device_lock); - list_for_each_safe(node, next, &acpi_wakeup_device_list) { - struct acpi_device *dev = - container_of(node, struct acpi_device, wakeup_list); - if (!dev->wakeup.flags.valid) - continue; - - if (!strncmp(dev->pnp.bus_id, str, 4)) { - dev->wakeup.state.enabled = - dev->wakeup.state.enabled ? 0 : 1; - found_dev = dev; - break; - } - } - if (found_dev) { - physical_device_enable_wakeup(found_dev); - list_for_each_safe(node, next, &acpi_wakeup_device_list) { - struct acpi_device *dev = container_of(node, - struct - acpi_device, - wakeup_list); - - if ((dev != found_dev) && - (dev->wakeup.gpe_number == - found_dev->wakeup.gpe_number) - && (dev->wakeup.gpe_device == - found_dev->wakeup.gpe_device)) { - printk(KERN_WARNING - "ACPI: '%s' and '%s' have the same GPE, " - "can't disable/enable one seperately\n", - dev->pnp.bus_id, found_dev->pnp.bus_id); - dev->wakeup.state.enabled = - found_dev->wakeup.state.enabled; - physical_device_enable_wakeup(dev); - } - } - } - spin_unlock(&acpi_device_lock); - return count; -} - -static int -acpi_system_wakeup_device_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_system_wakeup_device_seq_show, - PDE(inode)->data); -} - -static const struct file_operations acpi_system_wakeup_device_fops = { - .owner = THIS_MODULE, - .open = acpi_system_wakeup_device_open_fs, - .read = seq_read, - .write = acpi_system_write_wakeup_device, - .llseek = seq_lseek, - .release = single_release, -}; - -#ifdef CONFIG_ACPI_PROCFS -static const struct file_operations acpi_system_sleep_fops = { - .owner = THIS_MODULE, - .open = acpi_system_sleep_open_fs, - .read = seq_read, - .write = acpi_system_write_sleep, - .llseek = seq_lseek, - .release = single_release, -}; -#endif /* CONFIG_ACPI_PROCFS */ - -#ifdef HAVE_ACPI_LEGACY_ALARM -static const struct file_operations acpi_system_alarm_fops = { - .owner = THIS_MODULE, - .open = acpi_system_alarm_open_fs, - .read = seq_read, - .write = acpi_system_write_alarm, - .llseek = seq_lseek, - .release = single_release, -}; - -static u32 rtc_handler(void *context) -{ - acpi_clear_event(ACPI_EVENT_RTC); - acpi_disable_event(ACPI_EVENT_RTC, 0); - - return ACPI_INTERRUPT_HANDLED; -} -#endif /* HAVE_ACPI_LEGACY_ALARM */ - -static int __init acpi_sleep_proc_init(void) -{ - if (acpi_disabled) - return 0; - -#ifdef CONFIG_ACPI_PROCFS - /* 'sleep' [R/W] */ - proc_create("sleep", S_IFREG | S_IRUGO | S_IWUSR, - acpi_root_dir, &acpi_system_sleep_fops); -#endif /* CONFIG_ACPI_PROCFS */ - -#ifdef HAVE_ACPI_LEGACY_ALARM - /* 'alarm' [R/W] */ - proc_create("alarm", S_IFREG | S_IRUGO | S_IWUSR, - acpi_root_dir, &acpi_system_alarm_fops); - - acpi_install_fixed_event_handler(ACPI_EVENT_RTC, rtc_handler, NULL); - /* - * Disable the RTC event after installing RTC handler. - * Only when RTC alarm is set will it be enabled. - */ - acpi_clear_event(ACPI_EVENT_RTC); - acpi_disable_event(ACPI_EVENT_RTC, 0); -#endif /* HAVE_ACPI_LEGACY_ALARM */ - - /* 'wakeup device' [R/W] */ - proc_create("wakeup", S_IFREG | S_IRUGO | S_IWUSR, - acpi_root_dir, &acpi_system_wakeup_device_fops); - - return 0; -} - -late_initcall(acpi_sleep_proc_init); diff --git a/drivers/acpi/sleep/sleep.h b/drivers/acpi/sleep/sleep.h deleted file mode 100644 index cfaf8f5b0a14..000000000000 --- a/drivers/acpi/sleep/sleep.h +++ /dev/null @@ -1,7 +0,0 @@ - -extern u8 sleep_states[]; -extern int acpi_suspend (u32 state); - -extern void acpi_enable_wakeup_device_prep(u8 sleep_state); -extern void acpi_enable_wakeup_device(u8 sleep_state); -extern void acpi_disable_wakeup_device(u8 sleep_state); diff --git a/drivers/acpi/sleep/wakeup.c b/drivers/acpi/sleep/wakeup.c deleted file mode 100644 index 2d34806d45dd..000000000000 --- a/drivers/acpi/sleep/wakeup.c +++ /dev/null @@ -1,167 +0,0 @@ -/* - * wakeup.c - support wakeup devices - * Copyright (C) 2004 Li Shaohua - */ - -#include -#include -#include -#include -#include -#include "sleep.h" - -#define _COMPONENT ACPI_SYSTEM_COMPONENT -ACPI_MODULE_NAME("wakeup_devices") - -extern struct list_head acpi_wakeup_device_list; -extern spinlock_t acpi_device_lock; - -/** - * acpi_enable_wakeup_device_prep - prepare wakeup devices - * @sleep_state: ACPI state - * Enable all wakup devices power if the devices' wakeup level - * is higher than requested sleep level - */ - -void acpi_enable_wakeup_device_prep(u8 sleep_state) -{ - struct list_head *node, *next; - - spin_lock(&acpi_device_lock); - list_for_each_safe(node, next, &acpi_wakeup_device_list) { - struct acpi_device *dev = container_of(node, - struct acpi_device, - wakeup_list); - - if (!dev->wakeup.flags.valid || - !dev->wakeup.state.enabled || - (sleep_state > (u32) dev->wakeup.sleep_state)) - continue; - - spin_unlock(&acpi_device_lock); - acpi_enable_wakeup_device_power(dev, sleep_state); - spin_lock(&acpi_device_lock); - } - spin_unlock(&acpi_device_lock); -} - -/** - * acpi_enable_wakeup_device - enable wakeup devices - * @sleep_state: ACPI state - * Enable all wakup devices's GPE - */ -void acpi_enable_wakeup_device(u8 sleep_state) -{ - struct list_head *node, *next; - - /* - * Caution: this routine must be invoked when interrupt is disabled - * Refer ACPI2.0: P212 - */ - spin_lock(&acpi_device_lock); - list_for_each_safe(node, next, &acpi_wakeup_device_list) { - struct acpi_device *dev = - container_of(node, struct acpi_device, wakeup_list); - - if (!dev->wakeup.flags.valid) - continue; - - /* If users want to disable run-wake GPE, - * we only disable it for wake and leave it for runtime - */ - if ((!dev->wakeup.state.enabled && !dev->wakeup.flags.prepared) - || sleep_state > (u32) dev->wakeup.sleep_state) { - if (dev->wakeup.flags.run_wake) { - spin_unlock(&acpi_device_lock); - /* set_gpe_type will disable GPE, leave it like that */ - acpi_set_gpe_type(dev->wakeup.gpe_device, - dev->wakeup.gpe_number, - ACPI_GPE_TYPE_RUNTIME); - spin_lock(&acpi_device_lock); - } - continue; - } - spin_unlock(&acpi_device_lock); - if (!dev->wakeup.flags.run_wake) - acpi_enable_gpe(dev->wakeup.gpe_device, - dev->wakeup.gpe_number); - spin_lock(&acpi_device_lock); - } - spin_unlock(&acpi_device_lock); -} - -/** - * acpi_disable_wakeup_device - disable devices' wakeup capability - * @sleep_state: ACPI state - * Disable all wakup devices's GPE and wakeup capability - */ -void acpi_disable_wakeup_device(u8 sleep_state) -{ - struct list_head *node, *next; - - spin_lock(&acpi_device_lock); - list_for_each_safe(node, next, &acpi_wakeup_device_list) { - struct acpi_device *dev = - container_of(node, struct acpi_device, wakeup_list); - - if (!dev->wakeup.flags.valid) - continue; - - if ((!dev->wakeup.state.enabled && !dev->wakeup.flags.prepared) - || sleep_state > (u32) dev->wakeup.sleep_state) { - if (dev->wakeup.flags.run_wake) { - spin_unlock(&acpi_device_lock); - acpi_set_gpe_type(dev->wakeup.gpe_device, - dev->wakeup.gpe_number, - ACPI_GPE_TYPE_WAKE_RUN); - /* Re-enable it, since set_gpe_type will disable it */ - acpi_enable_gpe(dev->wakeup.gpe_device, - dev->wakeup.gpe_number); - spin_lock(&acpi_device_lock); - } - continue; - } - - spin_unlock(&acpi_device_lock); - acpi_disable_wakeup_device_power(dev); - /* Never disable run-wake GPE */ - if (!dev->wakeup.flags.run_wake) { - acpi_disable_gpe(dev->wakeup.gpe_device, - dev->wakeup.gpe_number); - acpi_clear_gpe(dev->wakeup.gpe_device, - dev->wakeup.gpe_number, ACPI_NOT_ISR); - } - spin_lock(&acpi_device_lock); - } - spin_unlock(&acpi_device_lock); -} - -static int __init acpi_wakeup_device_init(void) -{ - struct list_head *node, *next; - - if (acpi_disabled) - return 0; - - spin_lock(&acpi_device_lock); - list_for_each_safe(node, next, &acpi_wakeup_device_list) { - struct acpi_device *dev = container_of(node, - struct acpi_device, - wakeup_list); - /* In case user doesn't load button driver */ - if (!dev->wakeup.flags.run_wake || dev->wakeup.state.enabled) - continue; - spin_unlock(&acpi_device_lock); - acpi_set_gpe_type(dev->wakeup.gpe_device, - dev->wakeup.gpe_number, - ACPI_GPE_TYPE_WAKE_RUN); - acpi_enable_gpe(dev->wakeup.gpe_device, - dev->wakeup.gpe_number); - dev->wakeup.state.enabled = 1; - spin_lock(&acpi_device_lock); - } - spin_unlock(&acpi_device_lock); - return 0; -} - -late_initcall(acpi_wakeup_device_init); diff --git a/drivers/acpi/tables/Makefile b/drivers/acpi/tables/Makefile deleted file mode 100644 index 7385efa61622..000000000000 --- a/drivers/acpi/tables/Makefile +++ /dev/null @@ -1,7 +0,0 @@ -# -# Makefile for all Linux ACPI interpreter subdirectories -# - -obj-y := tbxface.o tbinstal.o tbutils.o tbfind.o tbfadt.o tbxfroot.o - -EXTRA_CFLAGS += $(ACPI_CFLAGS) diff --git a/drivers/acpi/tables/tbfadt.c b/drivers/acpi/tables/tbfadt.c deleted file mode 100644 index 87f22e68c6d6..000000000000 --- a/drivers/acpi/tables/tbfadt.c +++ /dev/null @@ -1,610 +0,0 @@ -/****************************************************************************** - * - * Module Name: tbfadt - FADT table utilities - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_TABLES -ACPI_MODULE_NAME("tbfadt") - -/* Local prototypes */ -static inline void -acpi_tb_init_generic_address(struct acpi_generic_address *generic_address, - u8 space_id, u8 byte_width, u64 address); - -static void acpi_tb_convert_fadt(void); - -static void acpi_tb_validate_fadt(void); - -/* Table for conversion of FADT to common internal format and FADT validation */ - -typedef struct acpi_fadt_info { - char *name; - u8 address64; - u8 address32; - u8 length; - u8 default_length; - u8 type; - -} acpi_fadt_info; - -#define ACPI_FADT_REQUIRED 1 -#define ACPI_FADT_SEPARATE_LENGTH 2 - -static struct acpi_fadt_info fadt_info_table[] = { - {"Pm1aEventBlock", - ACPI_FADT_OFFSET(xpm1a_event_block), - ACPI_FADT_OFFSET(pm1a_event_block), - ACPI_FADT_OFFSET(pm1_event_length), - ACPI_PM1_REGISTER_WIDTH * 2, /* Enable + Status register */ - ACPI_FADT_REQUIRED}, - - {"Pm1bEventBlock", - ACPI_FADT_OFFSET(xpm1b_event_block), - ACPI_FADT_OFFSET(pm1b_event_block), - ACPI_FADT_OFFSET(pm1_event_length), - ACPI_PM1_REGISTER_WIDTH * 2, /* Enable + Status register */ - 0}, - - {"Pm1aControlBlock", - ACPI_FADT_OFFSET(xpm1a_control_block), - ACPI_FADT_OFFSET(pm1a_control_block), - ACPI_FADT_OFFSET(pm1_control_length), - ACPI_PM1_REGISTER_WIDTH, - ACPI_FADT_REQUIRED}, - - {"Pm1bControlBlock", - ACPI_FADT_OFFSET(xpm1b_control_block), - ACPI_FADT_OFFSET(pm1b_control_block), - ACPI_FADT_OFFSET(pm1_control_length), - ACPI_PM1_REGISTER_WIDTH, - 0}, - - {"Pm2ControlBlock", - ACPI_FADT_OFFSET(xpm2_control_block), - ACPI_FADT_OFFSET(pm2_control_block), - ACPI_FADT_OFFSET(pm2_control_length), - ACPI_PM2_REGISTER_WIDTH, - ACPI_FADT_SEPARATE_LENGTH}, - - {"PmTimerBlock", - ACPI_FADT_OFFSET(xpm_timer_block), - ACPI_FADT_OFFSET(pm_timer_block), - ACPI_FADT_OFFSET(pm_timer_length), - ACPI_PM_TIMER_WIDTH, - ACPI_FADT_REQUIRED}, - - {"Gpe0Block", - ACPI_FADT_OFFSET(xgpe0_block), - ACPI_FADT_OFFSET(gpe0_block), - ACPI_FADT_OFFSET(gpe0_block_length), - 0, - ACPI_FADT_SEPARATE_LENGTH}, - - {"Gpe1Block", - ACPI_FADT_OFFSET(xgpe1_block), - ACPI_FADT_OFFSET(gpe1_block), - ACPI_FADT_OFFSET(gpe1_block_length), - 0, - ACPI_FADT_SEPARATE_LENGTH} -}; - -#define ACPI_FADT_INFO_ENTRIES (sizeof (fadt_info_table) / sizeof (struct acpi_fadt_info)) - -/******************************************************************************* - * - * FUNCTION: acpi_tb_init_generic_address - * - * PARAMETERS: generic_address - GAS struct to be initialized - * byte_width - Width of this register - * Address - Address of the register - * - * RETURN: None - * - * DESCRIPTION: Initialize a Generic Address Structure (GAS) - * See the ACPI specification for a full description and - * definition of this structure. - * - ******************************************************************************/ - -static inline void -acpi_tb_init_generic_address(struct acpi_generic_address *generic_address, - u8 space_id, u8 byte_width, u64 address) -{ - - /* - * The 64-bit Address field is non-aligned in the byte packed - * GAS struct. - */ - ACPI_MOVE_64_TO_64(&generic_address->address, &address); - - /* All other fields are byte-wide */ - - generic_address->space_id = space_id; - generic_address->bit_width = (u8)ACPI_MUL_8(byte_width); - generic_address->bit_offset = 0; - generic_address->access_width = 0; /* Access width ANY */ -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_parse_fadt - * - * PARAMETERS: table_index - Index for the FADT - * Flags - Flags - * - * RETURN: None - * - * DESCRIPTION: Initialize the FADT, DSDT and FACS tables - * (FADT contains the addresses of the DSDT and FACS) - * - ******************************************************************************/ - -void acpi_tb_parse_fadt(u32 table_index, u8 flags) -{ - u32 length; - struct acpi_table_header *table; - - /* - * The FADT has multiple versions with different lengths, - * and it contains pointers to both the DSDT and FACS tables. - * - * Get a local copy of the FADT and convert it to a common format - * Map entire FADT, assumed to be smaller than one page. - */ - length = acpi_gbl_root_table_list.tables[table_index].length; - - table = - acpi_os_map_memory(acpi_gbl_root_table_list.tables[table_index]. - address, length); - if (!table) { - return; - } - - /* - * Validate the FADT checksum before we copy the table. Ignore - * checksum error as we want to try to get the DSDT and FACS. - */ - (void)acpi_tb_verify_checksum(table, length); - - /* Obtain a local copy of the FADT in common ACPI 2.0+ format */ - - acpi_tb_create_local_fadt(table, length); - - /* All done with the real FADT, unmap it */ - - acpi_os_unmap_memory(table, length); - - /* Obtain the DSDT and FACS tables via their addresses within the FADT */ - - acpi_tb_install_table((acpi_physical_address) acpi_gbl_FADT.Xdsdt, - flags, ACPI_SIG_DSDT, ACPI_TABLE_INDEX_DSDT); - - acpi_tb_install_table((acpi_physical_address) acpi_gbl_FADT.Xfacs, - flags, ACPI_SIG_FACS, ACPI_TABLE_INDEX_FACS); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_create_local_fadt - * - * PARAMETERS: Table - Pointer to BIOS FADT - * Length - Length of the table - * - * RETURN: None - * - * DESCRIPTION: Get a local copy of the FADT and convert it to a common format. - * Performs validation on some important FADT fields. - * - * NOTE: We create a local copy of the FADT regardless of the version. - * - ******************************************************************************/ - -void acpi_tb_create_local_fadt(struct acpi_table_header *table, u32 length) -{ - - /* - * Check if the FADT is larger than the largest table that we expect - * (the ACPI 2.0/3.0 version). If so, truncate the table, and issue - * a warning. - */ - if (length > sizeof(struct acpi_table_fadt)) { - ACPI_WARNING((AE_INFO, - "FADT (revision %u) is longer than ACPI 2.0 version, " - "truncating length 0x%X to 0x%zX", - table->revision, (unsigned)length, - sizeof(struct acpi_table_fadt))); - } - - /* Clear the entire local FADT */ - - ACPI_MEMSET(&acpi_gbl_FADT, 0, sizeof(struct acpi_table_fadt)); - - /* Copy the original FADT, up to sizeof (struct acpi_table_fadt) */ - - ACPI_MEMCPY(&acpi_gbl_FADT, table, - ACPI_MIN(length, sizeof(struct acpi_table_fadt))); - - /* - * 1) Convert the local copy of the FADT to the common internal format - * 2) Validate some of the important values within the FADT - */ - acpi_tb_convert_fadt(); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_convert_fadt - * - * PARAMETERS: None, uses acpi_gbl_FADT - * - * RETURN: None - * - * DESCRIPTION: Converts all versions of the FADT to a common internal format. - * Expand all 32-bit addresses to 64-bit. - * - * NOTE: acpi_gbl_FADT must be of size (struct acpi_table_fadt), - * and must contain a copy of the actual FADT. - * - * ACPICA will use the "X" fields of the FADT for all addresses. - * - * "X" fields are optional extensions to the original V1.0 fields. Even if - * they are present in the structure, they can be optionally not used by - * setting them to zero. Therefore, we must selectively expand V1.0 fields - * if the corresponding X field is zero. - * - * For ACPI 1.0 FADTs, all address fields are expanded to the corresponding - * "X" fields. - * - * For ACPI 2.0 FADTs, any "X" fields that are NULL are filled in by - * expanding the corresponding ACPI 1.0 field. - * - ******************************************************************************/ - -static void acpi_tb_convert_fadt(void) -{ - u8 pm1_register_bit_width; - u8 pm1_register_byte_width; - struct acpi_generic_address *target64; - u32 i; - - /* Update the local FADT table header length */ - - acpi_gbl_FADT.header.length = sizeof(struct acpi_table_fadt); - - /* - * Expand the 32-bit FACS and DSDT addresses to 64-bit as necessary. - * Later code will always use the X 64-bit field. Also, check for an - * address mismatch between the 32-bit and 64-bit address fields - * (FIRMWARE_CTRL/X_FIRMWARE_CTRL, DSDT/X_DSDT) which would indicate - * the presence of two FACS or two DSDT tables. - */ - if (!acpi_gbl_FADT.Xfacs) { - acpi_gbl_FADT.Xfacs = (u64) acpi_gbl_FADT.facs; - } else if (acpi_gbl_FADT.facs && - (acpi_gbl_FADT.Xfacs != (u64) acpi_gbl_FADT.facs)) { - ACPI_WARNING((AE_INFO, - "32/64 FACS address mismatch in FADT - two FACS tables!")); - } - - if (!acpi_gbl_FADT.Xdsdt) { - acpi_gbl_FADT.Xdsdt = (u64) acpi_gbl_FADT.dsdt; - } else if (acpi_gbl_FADT.dsdt && - (acpi_gbl_FADT.Xdsdt != (u64) acpi_gbl_FADT.dsdt)) { - ACPI_WARNING((AE_INFO, - "32/64 DSDT address mismatch in FADT - two DSDT tables!")); - } - - /* - * For ACPI 1.0 FADTs (revision 1 or 2), ensure that reserved fields which - * should be zero are indeed zero. This will workaround BIOSs that - * inadvertently place values in these fields. - * - * The ACPI 1.0 reserved fields that will be zeroed are the bytes located at - * offset 45, 55, 95, and the word located at offset 109, 110. - */ - if (acpi_gbl_FADT.header.revision < FADT2_REVISION_ID) { - acpi_gbl_FADT.preferred_profile = 0; - acpi_gbl_FADT.pstate_control = 0; - acpi_gbl_FADT.cst_control = 0; - acpi_gbl_FADT.boot_flags = 0; - } - - /* - * Expand the ACPI 1.0 32-bit addresses to the ACPI 2.0 64-bit "X" - * generic address structures as necessary. Later code will always use - * the 64-bit address structures. - */ - for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) { - target64 = - ACPI_ADD_PTR(struct acpi_generic_address, &acpi_gbl_FADT, - fadt_info_table[i].address64); - - /* Expand only if the 64-bit X target is null */ - - if (!target64->address) { - - /* The space_id is always I/O for the 32-bit legacy address fields */ - - acpi_tb_init_generic_address(target64, - ACPI_ADR_SPACE_SYSTEM_IO, - *ACPI_ADD_PTR(u8, - &acpi_gbl_FADT, - fadt_info_table - [i].length), - (u64) * ACPI_ADD_PTR(u32, - &acpi_gbl_FADT, - fadt_info_table - [i]. - address32)); - } - } - - /* Validate FADT values now, before we make any changes */ - - acpi_tb_validate_fadt(); - - /* - * Optionally check all register lengths against the default values and - * update them if they are incorrect. - */ - if (acpi_gbl_use_default_register_widths) { - for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) { - target64 = - ACPI_ADD_PTR(struct acpi_generic_address, - &acpi_gbl_FADT, - fadt_info_table[i].address64); - - /* - * If a valid register (Address != 0) and the (default_length > 0) - * (Not a GPE register), then check the width against the default. - */ - if ((target64->address) && - (fadt_info_table[i].default_length > 0) && - (fadt_info_table[i].default_length != - target64->bit_width)) { - ACPI_WARNING((AE_INFO, - "Invalid length for %s: %d, using default %d", - fadt_info_table[i].name, - target64->bit_width, - fadt_info_table[i]. - default_length)); - - /* Incorrect size, set width to the default */ - - target64->bit_width = - fadt_info_table[i].default_length; - } - } - } - - /* - * Get the length of the individual PM1 registers (enable and status). - * Each register is defined to be (event block length / 2). - */ - pm1_register_bit_width = - (u8)ACPI_DIV_2(acpi_gbl_FADT.xpm1a_event_block.bit_width); - pm1_register_byte_width = (u8)ACPI_DIV_8(pm1_register_bit_width); - - /* - * Adjust the lengths of the PM1 Event Blocks so that they can be used to - * access the PM1 status register(s). Use (width / 2) - */ - acpi_gbl_FADT.xpm1a_event_block.bit_width = pm1_register_bit_width; - acpi_gbl_FADT.xpm1b_event_block.bit_width = pm1_register_bit_width; - - /* - * Calculate separate GAS structs for the PM1 Enable registers. - * These addresses do not appear (directly) in the FADT, so it is - * useful to calculate them once, here. - * - * The PM event blocks are split into two register blocks, first is the - * PM Status Register block, followed immediately by the PM Enable - * Register block. Each is of length (xpm1x_event_block.bit_width/2). - * - * On various systems the v2 fields (and particularly the bit widths) - * cannot be relied upon, though. Hence resort to using the v1 length - * here (and warn about the inconsistency). - */ - if (acpi_gbl_FADT.xpm1a_event_block.bit_width - != acpi_gbl_FADT.pm1_event_length * 8) - printk(KERN_WARNING "FADT: " - "X_PM1a_EVT_BLK.bit_width (%u) does not match" - " PM1_EVT_LEN (%u)\n", - acpi_gbl_FADT.xpm1a_event_block.bit_width, - acpi_gbl_FADT.pm1_event_length); - - /* The PM1A register block is required */ - - acpi_tb_init_generic_address(&acpi_gbl_xpm1a_enable, - acpi_gbl_FADT.xpm1a_event_block.space_id, - pm1_register_byte_width, - (acpi_gbl_FADT.xpm1a_event_block.address + - pm1_register_byte_width)); - /* Don't forget to copy space_id of the GAS */ - acpi_gbl_xpm1a_enable.space_id = - acpi_gbl_FADT.xpm1a_event_block.space_id; - - /* The PM1B register block is optional, ignore if not present */ - - if (acpi_gbl_FADT.xpm1b_event_block.address) { - if (acpi_gbl_FADT.xpm1b_event_block.bit_width - != acpi_gbl_FADT.pm1_event_length * 8) - printk(KERN_WARNING "FADT: " - "X_PM1b_EVT_BLK.bit_width (%u) does not match" - " PM1_EVT_LEN (%u)\n", - acpi_gbl_FADT.xpm1b_event_block.bit_width, - acpi_gbl_FADT.pm1_event_length); - acpi_tb_init_generic_address(&acpi_gbl_xpm1b_enable, - acpi_gbl_FADT.xpm1b_event_block.space_id, - pm1_register_byte_width, - (acpi_gbl_FADT.xpm1b_event_block. - address + pm1_register_byte_width)); - /* Don't forget to copy space_id of the GAS */ - acpi_gbl_xpm1b_enable.space_id = - acpi_gbl_FADT.xpm1b_event_block.space_id; - - } -} - -/****************************************************************************** - * - * FUNCTION: acpi_tb_validate_fadt - * - * PARAMETERS: Table - Pointer to the FADT to be validated - * - * RETURN: None - * - * DESCRIPTION: Validate various important fields within the FADT. If a problem - * is found, issue a message, but no status is returned. - * Used by both the table manager and the disassembler. - * - * Possible additional checks: - * (acpi_gbl_FADT.pm1_event_length >= 4) - * (acpi_gbl_FADT.pm1_control_length >= 2) - * (acpi_gbl_FADT.pm_timer_length >= 4) - * Gpe block lengths must be multiple of 2 - * - ******************************************************************************/ - -static void acpi_tb_validate_fadt(void) -{ - char *name; - u32 *address32; - struct acpi_generic_address *address64; - u8 length; - u32 i; - - /* - * Check for FACS and DSDT address mismatches. An address mismatch between - * the 32-bit and 64-bit address fields (FIRMWARE_CTRL/X_FIRMWARE_CTRL and - * DSDT/X_DSDT) would indicate the presence of two FACS or two DSDT tables. - */ - if (acpi_gbl_FADT.facs && - (acpi_gbl_FADT.Xfacs != (u64) acpi_gbl_FADT.facs)) { - ACPI_WARNING((AE_INFO, - "32/64X FACS address mismatch in FADT - " - "two FACS tables! %8.8X/%8.8X%8.8X", - acpi_gbl_FADT.facs, - ACPI_FORMAT_UINT64(acpi_gbl_FADT.Xfacs))); - } - - if (acpi_gbl_FADT.dsdt && - (acpi_gbl_FADT.Xdsdt != (u64) acpi_gbl_FADT.dsdt)) { - ACPI_WARNING((AE_INFO, - "32/64X DSDT address mismatch in FADT - " - "two DSDT tables! %8.8X/%8.8X%8.8X", - acpi_gbl_FADT.dsdt, - ACPI_FORMAT_UINT64(acpi_gbl_FADT.Xdsdt))); - } - - /* Examine all of the 64-bit extended address fields (X fields) */ - - for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) { - /* - * Generate pointers to the 32-bit and 64-bit addresses, get the - * register length (width), and the register name - */ - address64 = ACPI_ADD_PTR(struct acpi_generic_address, - &acpi_gbl_FADT, - fadt_info_table[i].address64); - address32 = - ACPI_ADD_PTR(u32, &acpi_gbl_FADT, - fadt_info_table[i].address32); - length = - *ACPI_ADD_PTR(u8, &acpi_gbl_FADT, - fadt_info_table[i].length); - name = fadt_info_table[i].name; - - /* - * For each extended field, check for length mismatch between the - * legacy length field and the corresponding 64-bit X length field. - */ - if (address64 && (address64->bit_width != ACPI_MUL_8(length))) { - ACPI_WARNING((AE_INFO, - "32/64X length mismatch in %s: %d/%d", - name, ACPI_MUL_8(length), - address64->bit_width)); - } - - if (fadt_info_table[i].type & ACPI_FADT_REQUIRED) { - /* - * Field is required (Pm1a_event, Pm1a_control, pm_timer). - * Both the address and length must be non-zero. - */ - if (!address64->address || !length) { - ACPI_ERROR((AE_INFO, - "Required field %s has zero address and/or length: %8.8X%8.8X/%X", - name, - ACPI_FORMAT_UINT64(address64-> - address), - length)); - } - } else if (fadt_info_table[i].type & ACPI_FADT_SEPARATE_LENGTH) { - /* - * Field is optional (PM2Control, GPE0, GPE1) AND has its own - * length field. If present, both the address and length must be valid. - */ - if ((address64->address && !length) - || (!address64->address && length)) { - ACPI_WARNING((AE_INFO, - "Optional field %s has zero address or length: %8.8X%8.8X/%X", - name, - ACPI_FORMAT_UINT64(address64-> - address), - length)); - } - } - - /* If both 32- and 64-bit addresses are valid (non-zero), they must match */ - - if (address64->address && *address32 && - (address64->address != (u64) * address32)) { - ACPI_ERROR((AE_INFO, - "32/64X address mismatch in %s: %8.8X/%8.8X%8.8X, using 64X", - name, *address32, - ACPI_FORMAT_UINT64(address64->address))); - } - } -} diff --git a/drivers/acpi/tables/tbfind.c b/drivers/acpi/tables/tbfind.c deleted file mode 100644 index 9d20cb6db892..000000000000 --- a/drivers/acpi/tables/tbfind.c +++ /dev/null @@ -1,140 +0,0 @@ -/****************************************************************************** - * - * Module Name: tbfind - find table - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_TABLES -ACPI_MODULE_NAME("tbfind") - -/******************************************************************************* - * - * FUNCTION: acpi_tb_find_table - * - * PARAMETERS: Signature - String with ACPI table signature - * oem_id - String with the table OEM ID - * oem_table_id - String with the OEM Table ID - * table_index - Where the table index is returned - * - * RETURN: Status and table index - * - * DESCRIPTION: Find an ACPI table (in the RSDT/XSDT) that matches the - * Signature, OEM ID and OEM Table ID. Returns an index that can - * be used to get the table header or entire table. - * - ******************************************************************************/ -acpi_status -acpi_tb_find_table(char *signature, - char *oem_id, char *oem_table_id, u32 *table_index) -{ - u32 i; - acpi_status status; - struct acpi_table_header header; - - ACPI_FUNCTION_TRACE(tb_find_table); - - /* Normalize the input strings */ - - ACPI_MEMSET(&header, 0, sizeof(struct acpi_table_header)); - ACPI_STRNCPY(header.signature, signature, ACPI_NAME_SIZE); - ACPI_STRNCPY(header.oem_id, oem_id, ACPI_OEM_ID_SIZE); - ACPI_STRNCPY(header.oem_table_id, oem_table_id, ACPI_OEM_TABLE_ID_SIZE); - - /* Search for the table */ - - for (i = 0; i < acpi_gbl_root_table_list.count; ++i) { - if (ACPI_MEMCMP(&(acpi_gbl_root_table_list.tables[i].signature), - header.signature, ACPI_NAME_SIZE)) { - - /* Not the requested table */ - - continue; - } - - /* Table with matching signature has been found */ - - if (!acpi_gbl_root_table_list.tables[i].pointer) { - - /* Table is not currently mapped, map it */ - - status = - acpi_tb_verify_table(&acpi_gbl_root_table_list. - tables[i]); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - if (!acpi_gbl_root_table_list.tables[i].pointer) { - continue; - } - } - - /* Check for table match on all IDs */ - - if (!ACPI_MEMCMP - (acpi_gbl_root_table_list.tables[i].pointer->signature, - header.signature, ACPI_NAME_SIZE) && (!oem_id[0] - || - !ACPI_MEMCMP - (acpi_gbl_root_table_list. - tables[i].pointer-> - oem_id, - header.oem_id, - ACPI_OEM_ID_SIZE)) - && (!oem_table_id[0] - || !ACPI_MEMCMP(acpi_gbl_root_table_list.tables[i]. - pointer->oem_table_id, - header.oem_table_id, - ACPI_OEM_TABLE_ID_SIZE))) { - *table_index = i; - - ACPI_DEBUG_PRINT((ACPI_DB_TABLES, - "Found table [%4.4s]\n", - header.signature)); - return_ACPI_STATUS(AE_OK); - } - } - - return_ACPI_STATUS(AE_NOT_FOUND); -} diff --git a/drivers/acpi/tables/tbinstal.c b/drivers/acpi/tables/tbinstal.c deleted file mode 100644 index 019b0d84cbea..000000000000 --- a/drivers/acpi/tables/tbinstal.c +++ /dev/null @@ -1,574 +0,0 @@ -/****************************************************************************** - * - * Module Name: tbinstal - ACPI table installation and removal - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include - -#define _COMPONENT ACPI_TABLES -ACPI_MODULE_NAME("tbinstal") - -/****************************************************************************** - * - * FUNCTION: acpi_tb_verify_table - * - * PARAMETERS: table_desc - table - * - * RETURN: Status - * - * DESCRIPTION: this function is called to verify and map table - * - *****************************************************************************/ -acpi_status acpi_tb_verify_table(struct acpi_table_desc *table_desc) -{ - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(tb_verify_table); - - /* Map the table if necessary */ - - if (!table_desc->pointer) { - if ((table_desc->flags & ACPI_TABLE_ORIGIN_MASK) == - ACPI_TABLE_ORIGIN_MAPPED) { - table_desc->pointer = - acpi_os_map_memory(table_desc->address, - table_desc->length); - } - if (!table_desc->pointer) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - } - - /* FACS is the odd table, has no standard ACPI header and no checksum */ - - if (!ACPI_COMPARE_NAME(&table_desc->signature, ACPI_SIG_FACS)) { - - /* Always calculate checksum, ignore bad checksum if requested */ - - status = - acpi_tb_verify_checksum(table_desc->pointer, - table_desc->length); - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_add_table - * - * PARAMETERS: table_desc - Table descriptor - * table_index - Where the table index is returned - * - * RETURN: Status - * - * DESCRIPTION: This function is called to add the ACPI table - * - ******************************************************************************/ - -acpi_status -acpi_tb_add_table(struct acpi_table_desc *table_desc, u32 *table_index) -{ - u32 i; - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(tb_add_table); - - if (!table_desc->pointer) { - status = acpi_tb_verify_table(table_desc); - if (ACPI_FAILURE(status) || !table_desc->pointer) { - return_ACPI_STATUS(status); - } - } - - /* - * Originally, we checked the table signature for "SSDT" or "PSDT" here. - * Next, we added support for OEMx tables, signature "OEM". - * Valid tables were encountered with a null signature, so we've just - * given up on validating the signature, since it seems to be a waste - * of code. The original code was removed (05/2008). - */ - - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - - /* Check if table is already registered */ - - for (i = 0; i < acpi_gbl_root_table_list.count; ++i) { - if (!acpi_gbl_root_table_list.tables[i].pointer) { - status = - acpi_tb_verify_table(&acpi_gbl_root_table_list. - tables[i]); - if (ACPI_FAILURE(status) - || !acpi_gbl_root_table_list.tables[i].pointer) { - continue; - } - } - - /* - * Check for a table match on the entire table length, - * not just the header. - */ - if (table_desc->length != - acpi_gbl_root_table_list.tables[i].length) { - continue; - } - - if (ACPI_MEMCMP(table_desc->pointer, - acpi_gbl_root_table_list.tables[i].pointer, - acpi_gbl_root_table_list.tables[i].length)) { - continue; - } - - /* - * Note: the current mechanism does not unregister a table if it is - * dynamically unloaded. The related namespace entries are deleted, - * but the table remains in the root table list. - * - * The assumption here is that the number of different tables that - * will be loaded is actually small, and there is minimal overhead - * in just keeping the table in case it is needed again. - * - * If this assumption changes in the future (perhaps on large - * machines with many table load/unload operations), tables will - * need to be unregistered when they are unloaded, and slots in the - * root table list should be reused when empty. - */ - - /* - * Table is already registered. - * We can delete the table that was passed as a parameter. - */ - acpi_tb_delete_table(table_desc); - *table_index = i; - - if (acpi_gbl_root_table_list.tables[i]. - flags & ACPI_TABLE_IS_LOADED) { - - /* Table is still loaded, this is an error */ - - status = AE_ALREADY_EXISTS; - goto release; - } else { - /* Table was unloaded, allow it to be reloaded */ - - table_desc->pointer = - acpi_gbl_root_table_list.tables[i].pointer; - table_desc->address = - acpi_gbl_root_table_list.tables[i].address; - status = AE_OK; - goto print_header; - } - } - - /* Add the table to the global root table list */ - - status = acpi_tb_store_table(table_desc->address, table_desc->pointer, - table_desc->length, table_desc->flags, - table_index); - if (ACPI_FAILURE(status)) { - goto release; - } - - print_header: - acpi_tb_print_table_header(table_desc->address, table_desc->pointer); - - release: - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_resize_root_table_list - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Expand the size of global table array - * - ******************************************************************************/ - -acpi_status acpi_tb_resize_root_table_list(void) -{ - struct acpi_table_desc *tables; - - ACPI_FUNCTION_TRACE(tb_resize_root_table_list); - - /* allow_resize flag is a parameter to acpi_initialize_tables */ - - if (!(acpi_gbl_root_table_list.flags & ACPI_ROOT_ALLOW_RESIZE)) { - ACPI_ERROR((AE_INFO, - "Resize of Root Table Array is not allowed")); - return_ACPI_STATUS(AE_SUPPORT); - } - - /* Increase the Table Array size */ - - tables = ACPI_ALLOCATE_ZEROED(((acpi_size) acpi_gbl_root_table_list. - size + ACPI_ROOT_TABLE_SIZE_INCREMENT) - * sizeof(struct acpi_table_desc)); - if (!tables) { - ACPI_ERROR((AE_INFO, - "Could not allocate new root table array")); - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Copy and free the previous table array */ - - if (acpi_gbl_root_table_list.tables) { - ACPI_MEMCPY(tables, acpi_gbl_root_table_list.tables, - (acpi_size) acpi_gbl_root_table_list.size * - sizeof(struct acpi_table_desc)); - - if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) { - ACPI_FREE(acpi_gbl_root_table_list.tables); - } - } - - acpi_gbl_root_table_list.tables = tables; - acpi_gbl_root_table_list.size += ACPI_ROOT_TABLE_SIZE_INCREMENT; - acpi_gbl_root_table_list.flags |= (u8) ACPI_ROOT_ORIGIN_ALLOCATED; - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_store_table - * - * PARAMETERS: Address - Table address - * Table - Table header - * Length - Table length - * Flags - flags - * - * RETURN: Status and table index. - * - * DESCRIPTION: Add an ACPI table to the global table list - * - ******************************************************************************/ - -acpi_status -acpi_tb_store_table(acpi_physical_address address, - struct acpi_table_header *table, - u32 length, u8 flags, u32 *table_index) -{ - acpi_status status = AE_OK; - - /* Ensure that there is room for the table in the Root Table List */ - - if (acpi_gbl_root_table_list.count >= acpi_gbl_root_table_list.size) { - status = acpi_tb_resize_root_table_list(); - if (ACPI_FAILURE(status)) { - return (status); - } - } - - /* Initialize added table */ - - acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count]. - address = address; - acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count]. - pointer = table; - acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count].length = - length; - acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count]. - owner_id = 0; - acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count].flags = - flags; - - ACPI_MOVE_32_TO_32(& - (acpi_gbl_root_table_list. - tables[acpi_gbl_root_table_list.count].signature), - table->signature); - - *table_index = acpi_gbl_root_table_list.count; - acpi_gbl_root_table_list.count++; - return (status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_delete_table - * - * PARAMETERS: table_index - Table index - * - * RETURN: None - * - * DESCRIPTION: Delete one internal ACPI table - * - ******************************************************************************/ - -void acpi_tb_delete_table(struct acpi_table_desc *table_desc) -{ - /* Table must be mapped or allocated */ - if (!table_desc->pointer) { - return; - } - switch (table_desc->flags & ACPI_TABLE_ORIGIN_MASK) { - case ACPI_TABLE_ORIGIN_MAPPED: - acpi_os_unmap_memory(table_desc->pointer, table_desc->length); - break; - case ACPI_TABLE_ORIGIN_ALLOCATED: - ACPI_FREE(table_desc->pointer); - break; - default:; - } - - table_desc->pointer = NULL; -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_terminate - * - * PARAMETERS: None - * - * RETURN: None - * - * DESCRIPTION: Delete all internal ACPI tables - * - ******************************************************************************/ - -void acpi_tb_terminate(void) -{ - u32 i; - - ACPI_FUNCTION_TRACE(tb_terminate); - - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - - /* Delete the individual tables */ - - for (i = 0; i < acpi_gbl_root_table_list.count; ++i) { - acpi_tb_delete_table(&acpi_gbl_root_table_list.tables[i]); - } - - /* - * Delete the root table array if allocated locally. Array cannot be - * mapped, so we don't need to check for that flag. - */ - if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) { - ACPI_FREE(acpi_gbl_root_table_list.tables); - } - - acpi_gbl_root_table_list.tables = NULL; - acpi_gbl_root_table_list.flags = 0; - acpi_gbl_root_table_list.count = 0; - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "ACPI Tables freed\n")); - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_delete_namespace_by_owner - * - * PARAMETERS: table_index - Table index - * - * RETURN: None - * - * DESCRIPTION: Delete all namespace objects created when this table was loaded. - * - ******************************************************************************/ - -void acpi_tb_delete_namespace_by_owner(u32 table_index) -{ - acpi_owner_id owner_id; - - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - if (table_index < acpi_gbl_root_table_list.count) { - owner_id = - acpi_gbl_root_table_list.tables[table_index].owner_id; - } else { - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - return; - } - - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - acpi_ns_delete_namespace_by_owner(owner_id); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_allocate_owner_id - * - * PARAMETERS: table_index - Table index - * - * RETURN: Status - * - * DESCRIPTION: Allocates owner_id in table_desc - * - ******************************************************************************/ - -acpi_status acpi_tb_allocate_owner_id(u32 table_index) -{ - acpi_status status = AE_BAD_PARAMETER; - - ACPI_FUNCTION_TRACE(tb_allocate_owner_id); - - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - if (table_index < acpi_gbl_root_table_list.count) { - status = acpi_ut_allocate_owner_id - (&(acpi_gbl_root_table_list.tables[table_index].owner_id)); - } - - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_release_owner_id - * - * PARAMETERS: table_index - Table index - * - * RETURN: Status - * - * DESCRIPTION: Releases owner_id in table_desc - * - ******************************************************************************/ - -acpi_status acpi_tb_release_owner_id(u32 table_index) -{ - acpi_status status = AE_BAD_PARAMETER; - - ACPI_FUNCTION_TRACE(tb_release_owner_id); - - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - if (table_index < acpi_gbl_root_table_list.count) { - acpi_ut_release_owner_id(& - (acpi_gbl_root_table_list. - tables[table_index].owner_id)); - status = AE_OK; - } - - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_get_owner_id - * - * PARAMETERS: table_index - Table index - * owner_id - Where the table owner_id is returned - * - * RETURN: Status - * - * DESCRIPTION: returns owner_id for the ACPI table - * - ******************************************************************************/ - -acpi_status acpi_tb_get_owner_id(u32 table_index, acpi_owner_id *owner_id) -{ - acpi_status status = AE_BAD_PARAMETER; - - ACPI_FUNCTION_TRACE(tb_get_owner_id); - - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - if (table_index < acpi_gbl_root_table_list.count) { - *owner_id = - acpi_gbl_root_table_list.tables[table_index].owner_id; - status = AE_OK; - } - - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_is_table_loaded - * - * PARAMETERS: table_index - Table index - * - * RETURN: Table Loaded Flag - * - ******************************************************************************/ - -u8 acpi_tb_is_table_loaded(u32 table_index) -{ - u8 is_loaded = FALSE; - - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - if (table_index < acpi_gbl_root_table_list.count) { - is_loaded = (u8) - (acpi_gbl_root_table_list.tables[table_index]. - flags & ACPI_TABLE_IS_LOADED); - } - - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - return (is_loaded); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_set_table_loaded_flag - * - * PARAMETERS: table_index - Table index - * is_loaded - TRUE if table is loaded, FALSE otherwise - * - * RETURN: None - * - * DESCRIPTION: Sets the table loaded flag to either TRUE or FALSE. - * - ******************************************************************************/ - -void acpi_tb_set_table_loaded_flag(u32 table_index, u8 is_loaded) -{ - - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - if (table_index < acpi_gbl_root_table_list.count) { - if (is_loaded) { - acpi_gbl_root_table_list.tables[table_index].flags |= - ACPI_TABLE_IS_LOADED; - } else { - acpi_gbl_root_table_list.tables[table_index].flags &= - ~ACPI_TABLE_IS_LOADED; - } - } - - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); -} diff --git a/drivers/acpi/tables/tbutils.c b/drivers/acpi/tables/tbutils.c deleted file mode 100644 index 4eb7189974ca..000000000000 --- a/drivers/acpi/tables/tbutils.c +++ /dev/null @@ -1,582 +0,0 @@ -/****************************************************************************** - * - * Module Name: tbutils - table utilities - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_TABLES -ACPI_MODULE_NAME("tbutils") - -/* Local prototypes */ -static acpi_physical_address -acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size); - -/******************************************************************************* - * - * FUNCTION: acpi_tb_check_xsdt - * - * PARAMETERS: address - Pointer to the XSDT - * - * RETURN: status - * AE_OK - XSDT is okay - * AE_NO_MEMORY - can't map XSDT - * AE_INVALID_TABLE_LENGTH - invalid table length - * AE_NULL_ENTRY - XSDT has NULL entry - * - * DESCRIPTION: validate XSDT -******************************************************************************/ - -static acpi_status -acpi_tb_check_xsdt(acpi_physical_address address) -{ - struct acpi_table_header *table; - u32 length; - u64 xsdt_entry_address; - u8 *table_entry; - u32 table_count; - int i; - - table = acpi_os_map_memory(address, sizeof(struct acpi_table_header)); - if (!table) - return AE_NO_MEMORY; - - length = table->length; - acpi_os_unmap_memory(table, sizeof(struct acpi_table_header)); - if (length < sizeof(struct acpi_table_header)) - return AE_INVALID_TABLE_LENGTH; - - table = acpi_os_map_memory(address, length); - if (!table) - return AE_NO_MEMORY; - - /* Calculate the number of tables described in XSDT */ - table_count = - (u32) ((table->length - - sizeof(struct acpi_table_header)) / sizeof(u64)); - table_entry = - ACPI_CAST_PTR(u8, table) + sizeof(struct acpi_table_header); - for (i = 0; i < table_count; i++) { - ACPI_MOVE_64_TO_64(&xsdt_entry_address, table_entry); - if (!xsdt_entry_address) { - /* XSDT has NULL entry */ - break; - } - table_entry += sizeof(u64); - } - acpi_os_unmap_memory(table, length); - - if (i < table_count) - return AE_NULL_ENTRY; - else - return AE_OK; -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_initialize_facs - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Create a permanent mapping for the FADT and save it in a global - * for accessing the Global Lock and Firmware Waking Vector - * - ******************************************************************************/ - -acpi_status acpi_tb_initialize_facs(void) -{ - acpi_status status; - - status = acpi_get_table_by_index(ACPI_TABLE_INDEX_FACS, - ACPI_CAST_INDIRECT_PTR(struct - acpi_table_header, - &acpi_gbl_FACS)); - return status; -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_tables_loaded - * - * PARAMETERS: None - * - * RETURN: TRUE if required ACPI tables are loaded - * - * DESCRIPTION: Determine if the minimum required ACPI tables are present - * (FADT, FACS, DSDT) - * - ******************************************************************************/ - -u8 acpi_tb_tables_loaded(void) -{ - - if (acpi_gbl_root_table_list.count >= 3) { - return (TRUE); - } - - return (FALSE); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_print_table_header - * - * PARAMETERS: Address - Table physical address - * Header - Table header - * - * RETURN: None - * - * DESCRIPTION: Print an ACPI table header. Special cases for FACS and RSDP. - * - ******************************************************************************/ - -void -acpi_tb_print_table_header(acpi_physical_address address, - struct acpi_table_header *header) -{ - - if (ACPI_COMPARE_NAME(header->signature, ACPI_SIG_FACS)) { - - /* FACS only has signature and length fields of common table header */ - - ACPI_INFO((AE_INFO, "%4.4s %08lX, %04X", - header->signature, (unsigned long)address, - header->length)); - } else if (ACPI_COMPARE_NAME(header->signature, ACPI_SIG_RSDP)) { - - /* RSDP has no common fields */ - - ACPI_INFO((AE_INFO, "RSDP %08lX, %04X (r%d %6.6s)", - (unsigned long)address, - (ACPI_CAST_PTR(struct acpi_table_rsdp, header)-> - revision > - 0) ? ACPI_CAST_PTR(struct acpi_table_rsdp, - header)->length : 20, - ACPI_CAST_PTR(struct acpi_table_rsdp, - header)->revision, - ACPI_CAST_PTR(struct acpi_table_rsdp, - header)->oem_id)); - } else { - /* Standard ACPI table with full common header */ - - ACPI_INFO((AE_INFO, - "%4.4s %08lX, %04X (r%d %6.6s %8.8s %8X %4.4s %8X)", - header->signature, (unsigned long)address, - header->length, header->revision, header->oem_id, - header->oem_table_id, header->oem_revision, - header->asl_compiler_id, - header->asl_compiler_revision)); - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_validate_checksum - * - * PARAMETERS: Table - ACPI table to verify - * Length - Length of entire table - * - * RETURN: Status - * - * DESCRIPTION: Verifies that the table checksums to zero. Optionally returns - * exception on bad checksum. - * - ******************************************************************************/ - -acpi_status acpi_tb_verify_checksum(struct acpi_table_header *table, u32 length) -{ - u8 checksum; - - /* Compute the checksum on the table */ - - checksum = acpi_tb_checksum(ACPI_CAST_PTR(u8, table), length); - - /* Checksum ok? (should be zero) */ - - if (checksum) { - ACPI_WARNING((AE_INFO, - "Incorrect checksum in table [%4.4s] - %2.2X, should be %2.2X", - table->signature, table->checksum, - (u8) (table->checksum - checksum))); - -#if (ACPI_CHECKSUM_ABORT) - - return (AE_BAD_CHECKSUM); -#endif - } - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_checksum - * - * PARAMETERS: Buffer - Pointer to memory region to be checked - * Length - Length of this memory region - * - * RETURN: Checksum (u8) - * - * DESCRIPTION: Calculates circular checksum of memory region. - * - ******************************************************************************/ - -u8 acpi_tb_checksum(u8 *buffer, u32 length) -{ - u8 sum = 0; - u8 *end = buffer + length; - - while (buffer < end) { - sum = (u8) (sum + *(buffer++)); - } - - return sum; -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_install_table - * - * PARAMETERS: Address - Physical address of DSDT or FACS - * Flags - Flags - * Signature - Table signature, NULL if no need to - * match - * table_index - Index into root table array - * - * RETURN: None - * - * DESCRIPTION: Install an ACPI table into the global data structure. - * - ******************************************************************************/ - -void -acpi_tb_install_table(acpi_physical_address address, - u8 flags, char *signature, u32 table_index) -{ - struct acpi_table_header *table; - - if (!address) { - ACPI_ERROR((AE_INFO, - "Null physical address for ACPI table [%s]", - signature)); - return; - } - - /* Map just the table header */ - - table = acpi_os_map_memory(address, sizeof(struct acpi_table_header)); - if (!table) { - return; - } - - /* If a particular signature is expected, signature must match */ - - if (signature && !ACPI_COMPARE_NAME(table->signature, signature)) { - ACPI_ERROR((AE_INFO, - "Invalid signature 0x%X for ACPI table [%s]", - *ACPI_CAST_PTR(u32, table->signature), signature)); - goto unmap_and_exit; - } - - /* Initialize the table entry */ - - acpi_gbl_root_table_list.tables[table_index].address = address; - acpi_gbl_root_table_list.tables[table_index].length = table->length; - acpi_gbl_root_table_list.tables[table_index].flags = flags; - - ACPI_MOVE_32_TO_32(& - (acpi_gbl_root_table_list.tables[table_index]. - signature), table->signature); - - acpi_tb_print_table_header(address, table); - - if (table_index == ACPI_TABLE_INDEX_DSDT) { - - /* Global integer width is based upon revision of the DSDT */ - - acpi_ut_set_integer_width(table->revision); - } - - unmap_and_exit: - acpi_os_unmap_memory(table, sizeof(struct acpi_table_header)); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_get_root_table_entry - * - * PARAMETERS: table_entry - Pointer to the RSDT/XSDT table entry - * table_entry_size - sizeof 32 or 64 (RSDT or XSDT) - * - * RETURN: Physical address extracted from the root table - * - * DESCRIPTION: Get one root table entry. Handles 32-bit and 64-bit cases on - * both 32-bit and 64-bit platforms - * - * NOTE: acpi_physical_address is 32-bit on 32-bit platforms, 64-bit on - * 64-bit platforms. - * - ******************************************************************************/ - -static acpi_physical_address -acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size) -{ - u64 address64; - - /* - * Get the table physical address (32-bit for RSDT, 64-bit for XSDT): - * Note: Addresses are 32-bit aligned (not 64) in both RSDT and XSDT - */ - if (table_entry_size == sizeof(u32)) { - /* - * 32-bit platform, RSDT: Return 32-bit table entry - * 64-bit platform, RSDT: Expand 32-bit to 64-bit and return - */ - return ((acpi_physical_address) - (*ACPI_CAST_PTR(u32, table_entry))); - } else { - /* - * 32-bit platform, XSDT: Truncate 64-bit to 32-bit and return - * 64-bit platform, XSDT: Move (unaligned) 64-bit to local, return 64-bit - */ - ACPI_MOVE_64_TO_64(&address64, table_entry); - -#if ACPI_MACHINE_WIDTH == 32 - if (address64 > ACPI_UINT32_MAX) { - - /* Will truncate 64-bit address to 32 bits, issue warning */ - - ACPI_WARNING((AE_INFO, - "64-bit Physical Address in XSDT is too large (%8.8X%8.8X), truncating", - ACPI_FORMAT_UINT64(address64))); - } -#endif - return ((acpi_physical_address) (address64)); - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_parse_root_table - * - * PARAMETERS: Rsdp - Pointer to the RSDP - * Flags - Flags - * - * RETURN: Status - * - * DESCRIPTION: This function is called to parse the Root System Description - * Table (RSDT or XSDT) - * - * NOTE: Tables are mapped (not copied) for efficiency. The FACS must - * be mapped and cannot be copied because it contains the actual - * memory location of the ACPI Global Lock. - * - ******************************************************************************/ - -acpi_status __init -acpi_tb_parse_root_table(acpi_physical_address rsdp_address, u8 flags) -{ - struct acpi_table_rsdp *rsdp; - u32 table_entry_size; - u32 i; - u32 table_count; - struct acpi_table_header *table; - acpi_physical_address address; - acpi_physical_address uninitialized_var(rsdt_address); - u32 length; - u8 *table_entry; - acpi_status status; - - ACPI_FUNCTION_TRACE(tb_parse_root_table); - - /* - * Map the entire RSDP and extract the address of the RSDT or XSDT - */ - rsdp = acpi_os_map_memory(rsdp_address, sizeof(struct acpi_table_rsdp)); - if (!rsdp) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - acpi_tb_print_table_header(rsdp_address, - ACPI_CAST_PTR(struct acpi_table_header, - rsdp)); - - /* Differentiate between RSDT and XSDT root tables */ - - if (rsdp->revision > 1 && rsdp->xsdt_physical_address) { - /* - * Root table is an XSDT (64-bit physical addresses). We must use the - * XSDT if the revision is > 1 and the XSDT pointer is present, as per - * the ACPI specification. - */ - address = (acpi_physical_address) rsdp->xsdt_physical_address; - table_entry_size = sizeof(u64); - rsdt_address = (acpi_physical_address) - rsdp->rsdt_physical_address; - } else { - /* Root table is an RSDT (32-bit physical addresses) */ - - address = (acpi_physical_address) rsdp->rsdt_physical_address; - table_entry_size = sizeof(u32); - } - - /* - * It is not possible to map more than one entry in some environments, - * so unmap the RSDP here before mapping other tables - */ - acpi_os_unmap_memory(rsdp, sizeof(struct acpi_table_rsdp)); - - if (table_entry_size == sizeof(u64)) { - if (acpi_tb_check_xsdt(address) == AE_NULL_ENTRY) { - /* XSDT has NULL entry, RSDT is used */ - address = rsdt_address; - table_entry_size = sizeof(u32); - ACPI_WARNING((AE_INFO, "BIOS XSDT has NULL entry, " - "using RSDT")); - } - } - /* Map the RSDT/XSDT table header to get the full table length */ - - table = acpi_os_map_memory(address, sizeof(struct acpi_table_header)); - if (!table) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - acpi_tb_print_table_header(address, table); - - /* Get the length of the full table, verify length and map entire table */ - - length = table->length; - acpi_os_unmap_memory(table, sizeof(struct acpi_table_header)); - - if (length < sizeof(struct acpi_table_header)) { - ACPI_ERROR((AE_INFO, "Invalid length 0x%X in RSDT/XSDT", - length)); - return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH); - } - - table = acpi_os_map_memory(address, length); - if (!table) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Validate the root table checksum */ - - status = acpi_tb_verify_checksum(table, length); - if (ACPI_FAILURE(status)) { - acpi_os_unmap_memory(table, length); - return_ACPI_STATUS(status); - } - - /* Calculate the number of tables described in the root table */ - - table_count = - (u32) ((table->length - - sizeof(struct acpi_table_header)) / table_entry_size); - - /* - * First two entries in the table array are reserved for the DSDT and FACS, - * which are not actually present in the RSDT/XSDT - they come from the FADT - */ - table_entry = - ACPI_CAST_PTR(u8, table) + sizeof(struct acpi_table_header); - acpi_gbl_root_table_list.count = 2; - - /* - * Initialize the root table array from the RSDT/XSDT - */ - for (i = 0; i < table_count; i++) { - if (acpi_gbl_root_table_list.count >= - acpi_gbl_root_table_list.size) { - - /* There is no more room in the root table array, attempt resize */ - - status = acpi_tb_resize_root_table_list(); - if (ACPI_FAILURE(status)) { - ACPI_WARNING((AE_INFO, - "Truncating %u table entries!", - (unsigned) - (acpi_gbl_root_table_list.size - - acpi_gbl_root_table_list. - count))); - break; - } - } - - /* Get the table physical address (32-bit for RSDT, 64-bit for XSDT) */ - - acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count]. - address = - acpi_tb_get_root_table_entry(table_entry, table_entry_size); - - table_entry += table_entry_size; - acpi_gbl_root_table_list.count++; - } - - /* - * It is not possible to map more than one entry in some environments, - * so unmap the root table here before mapping other tables - */ - acpi_os_unmap_memory(table, length); - - /* - * Complete the initialization of the root table array by examining - * the header of each table - */ - for (i = 2; i < acpi_gbl_root_table_list.count; i++) { - acpi_tb_install_table(acpi_gbl_root_table_list.tables[i]. - address, flags, NULL, i); - - /* Special case for FADT - get the DSDT and FACS */ - - if (ACPI_COMPARE_NAME - (&acpi_gbl_root_table_list.tables[i].signature, - ACPI_SIG_FADT)) { - acpi_tb_parse_fadt(i, flags); - } - } - - return_ACPI_STATUS(AE_OK); -} diff --git a/drivers/acpi/tables/tbxface.c b/drivers/acpi/tables/tbxface.c deleted file mode 100644 index 115796694a2f..000000000000 --- a/drivers/acpi/tables/tbxface.c +++ /dev/null @@ -1,735 +0,0 @@ -/****************************************************************************** - * - * Module Name: tbxface - Public interfaces to the ACPI subsystem - * ACPI table oriented interfaces - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include - -#define _COMPONENT ACPI_TABLES -ACPI_MODULE_NAME("tbxface") - -/* Local prototypes */ -static acpi_status acpi_tb_load_namespace(void); - -static int no_auto_ssdt; - -/******************************************************************************* - * - * FUNCTION: acpi_allocate_root_table - * - * PARAMETERS: initial_table_count - Size of initial_table_array, in number of - * struct acpi_table_desc structures - * - * RETURN: Status - * - * DESCRIPTION: Allocate a root table array. Used by i_aSL compiler and - * acpi_initialize_tables. - * - ******************************************************************************/ - -acpi_status acpi_allocate_root_table(u32 initial_table_count) -{ - - acpi_gbl_root_table_list.size = initial_table_count; - acpi_gbl_root_table_list.flags = ACPI_ROOT_ALLOW_RESIZE; - - return (acpi_tb_resize_root_table_list()); -} - -/******************************************************************************* - * - * FUNCTION: acpi_initialize_tables - * - * PARAMETERS: initial_table_array - Pointer to an array of pre-allocated - * struct acpi_table_desc structures. If NULL, the - * array is dynamically allocated. - * initial_table_count - Size of initial_table_array, in number of - * struct acpi_table_desc structures - * allow_realloc - Flag to tell Table Manager if resize of - * pre-allocated array is allowed. Ignored - * if initial_table_array is NULL. - * - * RETURN: Status - * - * DESCRIPTION: Initialize the table manager, get the RSDP and RSDT/XSDT. - * - * NOTE: Allows static allocation of the initial table array in order - * to avoid the use of dynamic memory in confined environments - * such as the kernel boot sequence where it may not be available. - * - * If the host OS memory managers are initialized, use NULL for - * initial_table_array, and the table will be dynamically allocated. - * - ******************************************************************************/ - -acpi_status __init -acpi_initialize_tables(struct acpi_table_desc * initial_table_array, - u32 initial_table_count, u8 allow_resize) -{ - acpi_physical_address rsdp_address; - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_initialize_tables); - - /* - * Set up the Root Table Array - * Allocate the table array if requested - */ - if (!initial_table_array) { - status = acpi_allocate_root_table(initial_table_count); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } else { - /* Root Table Array has been statically allocated by the host */ - - ACPI_MEMSET(initial_table_array, 0, - (acpi_size) initial_table_count * - sizeof(struct acpi_table_desc)); - - acpi_gbl_root_table_list.tables = initial_table_array; - acpi_gbl_root_table_list.size = initial_table_count; - acpi_gbl_root_table_list.flags = ACPI_ROOT_ORIGIN_UNKNOWN; - if (allow_resize) { - acpi_gbl_root_table_list.flags |= - ACPI_ROOT_ALLOW_RESIZE; - } - } - - /* Get the address of the RSDP */ - - rsdp_address = acpi_os_get_root_pointer(); - if (!rsdp_address) { - return_ACPI_STATUS(AE_NOT_FOUND); - } - - /* - * Get the root table (RSDT or XSDT) and extract all entries to the local - * Root Table Array. This array contains the information of the RSDT/XSDT - * in a common, more useable format. - */ - status = - acpi_tb_parse_root_table(rsdp_address, ACPI_TABLE_ORIGIN_MAPPED); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_reallocate_root_table - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Reallocate Root Table List into dynamic memory. Copies the - * root list from the previously provided scratch area. Should - * be called once dynamic memory allocation is available in the - * kernel - * - ******************************************************************************/ -acpi_status acpi_reallocate_root_table(void) -{ - struct acpi_table_desc *tables; - acpi_size new_size; - - ACPI_FUNCTION_TRACE(acpi_reallocate_root_table); - - /* - * Only reallocate the root table if the host provided a static buffer - * for the table array in the call to acpi_initialize_tables. - */ - if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) { - return_ACPI_STATUS(AE_SUPPORT); - } - - new_size = ((acpi_size) acpi_gbl_root_table_list.count + - ACPI_ROOT_TABLE_SIZE_INCREMENT) * - sizeof(struct acpi_table_desc); - - /* Create new array and copy the old array */ - - tables = ACPI_ALLOCATE_ZEROED(new_size); - if (!tables) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - ACPI_MEMCPY(tables, acpi_gbl_root_table_list.tables, new_size); - - acpi_gbl_root_table_list.size = acpi_gbl_root_table_list.count; - acpi_gbl_root_table_list.tables = tables; - acpi_gbl_root_table_list.flags = - ACPI_ROOT_ORIGIN_ALLOCATED | ACPI_ROOT_ALLOW_RESIZE; - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_load_table - * - * PARAMETERS: table_ptr - pointer to a buffer containing the entire - * table to be loaded - * - * RETURN: Status - * - * DESCRIPTION: This function is called to load a table from the caller's - * buffer. The buffer must contain an entire ACPI Table including - * a valid header. The header fields will be verified, and if it - * is determined that the table is invalid, the call will fail. - * - ******************************************************************************/ -acpi_status acpi_load_table(struct acpi_table_header *table_ptr) -{ - acpi_status status; - u32 table_index; - struct acpi_table_desc table_desc; - - if (!table_ptr) - return AE_BAD_PARAMETER; - - ACPI_MEMSET(&table_desc, 0, sizeof(struct acpi_table_desc)); - table_desc.pointer = table_ptr; - table_desc.length = table_ptr->length; - table_desc.flags = ACPI_TABLE_ORIGIN_UNKNOWN; - - /* - * Install the new table into the local data structures - */ - status = acpi_tb_add_table(&table_desc, &table_index); - if (ACPI_FAILURE(status)) { - return status; - } - status = acpi_ns_load_table(table_index, acpi_gbl_root_node); - return status; -} - -ACPI_EXPORT_SYMBOL(acpi_load_table) - -/****************************************************************************** - * - * FUNCTION: acpi_get_table_header - * - * PARAMETERS: Signature - ACPI signature of needed table - * Instance - Which instance (for SSDTs) - * out_table_header - The pointer to the table header to fill - * - * RETURN: Status and pointer to mapped table header - * - * DESCRIPTION: Finds an ACPI table header. - * - * NOTE: Caller is responsible in unmapping the header with - * acpi_os_unmap_memory - * - *****************************************************************************/ -acpi_status -acpi_get_table_header(char *signature, - u32 instance, struct acpi_table_header *out_table_header) -{ - u32 i; - u32 j; - struct acpi_table_header *header; - - /* Parameter validation */ - - if (!signature || !out_table_header) { - return (AE_BAD_PARAMETER); - } - - /* - * Walk the root table list - */ - for (i = 0, j = 0; i < acpi_gbl_root_table_list.count; i++) { - if (!ACPI_COMPARE_NAME - (&(acpi_gbl_root_table_list.tables[i].signature), - signature)) { - continue; - } - - if (++j < instance) { - continue; - } - - if (!acpi_gbl_root_table_list.tables[i].pointer) { - if ((acpi_gbl_root_table_list.tables[i]. - flags & ACPI_TABLE_ORIGIN_MASK) == - ACPI_TABLE_ORIGIN_MAPPED) { - header = - acpi_os_map_memory(acpi_gbl_root_table_list. - tables[i].address, - sizeof(struct - acpi_table_header)); - if (!header) { - return AE_NO_MEMORY; - } - ACPI_MEMCPY(out_table_header, header, - sizeof(struct acpi_table_header)); - acpi_os_unmap_memory(header, - sizeof(struct - acpi_table_header)); - } else { - return AE_NOT_FOUND; - } - } else { - ACPI_MEMCPY(out_table_header, - acpi_gbl_root_table_list.tables[i].pointer, - sizeof(struct acpi_table_header)); - } - return (AE_OK); - } - - return (AE_NOT_FOUND); -} - -ACPI_EXPORT_SYMBOL(acpi_get_table_header) - -/****************************************************************************** - * - * FUNCTION: acpi_unload_table_id - * - * PARAMETERS: id - Owner ID of the table to be removed. - * - * RETURN: Status - * - * DESCRIPTION: This routine is used to force the unload of a table (by id) - * - ******************************************************************************/ -acpi_status acpi_unload_table_id(acpi_owner_id id) -{ - int i; - acpi_status status = AE_NOT_EXIST; - - ACPI_FUNCTION_TRACE(acpi_unload_table_id); - - /* Find table in the global table list */ - for (i = 0; i < acpi_gbl_root_table_list.count; ++i) { - if (id != acpi_gbl_root_table_list.tables[i].owner_id) { - continue; - } - /* - * Delete all namespace objects owned by this table. Note that these - * objects can appear anywhere in the namespace by virtue of the AML - * "Scope" operator. Thus, we need to track ownership by an ID, not - * simply a position within the hierarchy - */ - acpi_tb_delete_namespace_by_owner(i); - status = acpi_tb_release_owner_id(i); - acpi_tb_set_table_loaded_flag(i, FALSE); - break; - } - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_unload_table_id) - -/******************************************************************************* - * - * FUNCTION: acpi_get_table - * - * PARAMETERS: Signature - ACPI signature of needed table - * Instance - Which instance (for SSDTs) - * out_table - Where the pointer to the table is returned - * - * RETURN: Status and pointer to table - * - * DESCRIPTION: Finds and verifies an ACPI table. - * - *****************************************************************************/ -acpi_status -acpi_get_table(char *signature, - u32 instance, struct acpi_table_header **out_table) -{ - u32 i; - u32 j; - acpi_status status; - - /* Parameter validation */ - - if (!signature || !out_table) { - return (AE_BAD_PARAMETER); - } - - /* - * Walk the root table list - */ - for (i = 0, j = 0; i < acpi_gbl_root_table_list.count; i++) { - if (!ACPI_COMPARE_NAME - (&(acpi_gbl_root_table_list.tables[i].signature), - signature)) { - continue; - } - - if (++j < instance) { - continue; - } - - status = - acpi_tb_verify_table(&acpi_gbl_root_table_list.tables[i]); - if (ACPI_SUCCESS(status)) { - *out_table = acpi_gbl_root_table_list.tables[i].pointer; - } - - if (!acpi_gbl_permanent_mmap) { - acpi_gbl_root_table_list.tables[i].pointer = NULL; - } - - return (status); - } - - return (AE_NOT_FOUND); -} - -ACPI_EXPORT_SYMBOL(acpi_get_table) - -/******************************************************************************* - * - * FUNCTION: acpi_get_table_by_index - * - * PARAMETERS: table_index - Table index - * Table - Where the pointer to the table is returned - * - * RETURN: Status and pointer to the table - * - * DESCRIPTION: Obtain a table by an index into the global table list. - * - ******************************************************************************/ -acpi_status -acpi_get_table_by_index(u32 table_index, struct acpi_table_header **table) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_get_table_by_index); - - /* Parameter validation */ - - if (!table) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - - /* Validate index */ - - if (table_index >= acpi_gbl_root_table_list.count) { - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - if (!acpi_gbl_root_table_list.tables[table_index].pointer) { - - /* Table is not mapped, map it */ - - status = - acpi_tb_verify_table(&acpi_gbl_root_table_list. - tables[table_index]); - if (ACPI_FAILURE(status)) { - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - return_ACPI_STATUS(status); - } - } - - *table = acpi_gbl_root_table_list.tables[table_index].pointer; - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - return_ACPI_STATUS(AE_OK); -} - -ACPI_EXPORT_SYMBOL(acpi_get_table_by_index) - -/******************************************************************************* - * - * FUNCTION: acpi_tb_load_namespace - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Load the namespace from the DSDT and all SSDTs/PSDTs found in - * the RSDT/XSDT. - * - ******************************************************************************/ -static acpi_status acpi_tb_load_namespace(void) -{ - acpi_status status; - struct acpi_table_header *table; - u32 i; - - ACPI_FUNCTION_TRACE(tb_load_namespace); - - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - - /* - * Load the namespace. The DSDT is required, but any SSDT and PSDT tables - * are optional. - */ - if (!acpi_gbl_root_table_list.count || - !ACPI_COMPARE_NAME(& - (acpi_gbl_root_table_list. - tables[ACPI_TABLE_INDEX_DSDT].signature), - ACPI_SIG_DSDT) - || - ACPI_FAILURE(acpi_tb_verify_table - (&acpi_gbl_root_table_list. - tables[ACPI_TABLE_INDEX_DSDT]))) { - status = AE_NO_ACPI_TABLES; - goto unlock_and_exit; - } - - /* - * Find DSDT table - */ - status = - acpi_os_table_override(acpi_gbl_root_table_list. - tables[ACPI_TABLE_INDEX_DSDT].pointer, - &table); - if (ACPI_SUCCESS(status) && table) { - /* - * DSDT table has been found - */ - acpi_tb_delete_table(&acpi_gbl_root_table_list. - tables[ACPI_TABLE_INDEX_DSDT]); - acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_DSDT].pointer = - table; - acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_DSDT].length = - table->length; - acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_DSDT].flags = - ACPI_TABLE_ORIGIN_UNKNOWN; - - ACPI_INFO((AE_INFO, "Table DSDT replaced by host OS")); - acpi_tb_print_table_header(0, table); - - if (no_auto_ssdt == 0) { - printk(KERN_WARNING "ACPI: DSDT override uses original SSDTs unless \"acpi_no_auto_ssdt\"\n"); - } - } - - status = - acpi_tb_verify_table(&acpi_gbl_root_table_list. - tables[ACPI_TABLE_INDEX_DSDT]); - if (ACPI_FAILURE(status)) { - - /* A valid DSDT is required */ - - status = AE_NO_ACPI_TABLES; - goto unlock_and_exit; - } - - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - - /* - * Load and parse tables. - */ - status = acpi_ns_load_table(ACPI_TABLE_INDEX_DSDT, acpi_gbl_root_node); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * Load any SSDT or PSDT tables. Note: Loop leaves tables locked - */ - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - for (i = 0; i < acpi_gbl_root_table_list.count; ++i) { - if ((!ACPI_COMPARE_NAME - (&(acpi_gbl_root_table_list.tables[i].signature), - ACPI_SIG_SSDT) - && - !ACPI_COMPARE_NAME(& - (acpi_gbl_root_table_list.tables[i]. - signature), ACPI_SIG_PSDT)) - || - ACPI_FAILURE(acpi_tb_verify_table - (&acpi_gbl_root_table_list.tables[i]))) { - continue; - } - - if (no_auto_ssdt) { - printk(KERN_WARNING "ACPI: SSDT ignored due to \"acpi_no_auto_ssdt\"\n"); - continue; - } - - /* Ignore errors while loading tables, get as many as possible */ - - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - (void)acpi_ns_load_table(i, acpi_gbl_root_node); - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - } - - ACPI_DEBUG_PRINT((ACPI_DB_INIT, "ACPI Tables successfully acquired\n")); - - unlock_and_exit: - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_load_tables - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Load the ACPI tables from the RSDT/XSDT - * - ******************************************************************************/ - -acpi_status acpi_load_tables(void) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_load_tables); - - /* - * Load the namespace from the tables - */ - status = acpi_tb_load_namespace(); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "While loading namespace from ACPI tables")); - } - - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_load_tables) - - -/******************************************************************************* - * - * FUNCTION: acpi_install_table_handler - * - * PARAMETERS: Handler - Table event handler - * Context - Value passed to the handler on each event - * - * RETURN: Status - * - * DESCRIPTION: Install table event handler - * - ******************************************************************************/ -acpi_status -acpi_install_table_handler(acpi_tbl_handler handler, void *context) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_install_table_handler); - - if (!handler) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Don't allow more than one handler */ - - if (acpi_gbl_table_handler) { - status = AE_ALREADY_EXISTS; - goto cleanup; - } - - /* Install the handler */ - - acpi_gbl_table_handler = handler; - acpi_gbl_table_handler_context = context; - - cleanup: - (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_install_table_handler) - -/******************************************************************************* - * - * FUNCTION: acpi_remove_table_handler - * - * PARAMETERS: Handler - Table event handler that was installed - * previously. - * - * RETURN: Status - * - * DESCRIPTION: Remove table event handler - * - ******************************************************************************/ -acpi_status acpi_remove_table_handler(acpi_tbl_handler handler) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_remove_table_handler); - - status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Make sure that the installed handler is the same */ - - if (!handler || handler != acpi_gbl_table_handler) { - status = AE_BAD_PARAMETER; - goto cleanup; - } - - /* Remove the handler */ - - acpi_gbl_table_handler = NULL; - - cleanup: - (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_remove_table_handler) - - -static int __init acpi_no_auto_ssdt_setup(char *s) { - - printk(KERN_NOTICE "ACPI: SSDT auto-load disabled\n"); - - no_auto_ssdt = 1; - - return 1; -} - -__setup("acpi_no_auto_ssdt", acpi_no_auto_ssdt_setup); diff --git a/drivers/acpi/tables/tbxfroot.c b/drivers/acpi/tables/tbxfroot.c deleted file mode 100644 index 3495dca4e86b..000000000000 --- a/drivers/acpi/tables/tbxfroot.c +++ /dev/null @@ -1,274 +0,0 @@ -/****************************************************************************** - * - * Module Name: tbxfroot - Find the root ACPI table (RSDT) - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_TABLES -ACPI_MODULE_NAME("tbxfroot") - -/* Local prototypes */ -static u8 *acpi_tb_scan_memory_for_rsdp(u8 * start_address, u32 length); - -static acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp); - -/******************************************************************************* - * - * FUNCTION: acpi_tb_validate_rsdp - * - * PARAMETERS: Rsdp - Pointer to unvalidated RSDP - * - * RETURN: Status - * - * DESCRIPTION: Validate the RSDP (ptr) - * - ******************************************************************************/ - -static acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp) -{ - ACPI_FUNCTION_ENTRY(); - - /* - * The signature and checksum must both be correct - * - * Note: Sometimes there exists more than one RSDP in memory; the valid - * RSDP has a valid checksum, all others have an invalid checksum. - */ - if (ACPI_STRNCMP((char *)rsdp, ACPI_SIG_RSDP, sizeof(ACPI_SIG_RSDP) - 1) - != 0) { - - /* Nope, BAD Signature */ - - return (AE_BAD_SIGNATURE); - } - - /* Check the standard checksum */ - - if (acpi_tb_checksum((u8 *) rsdp, ACPI_RSDP_CHECKSUM_LENGTH) != 0) { - return (AE_BAD_CHECKSUM); - } - - /* Check extended checksum if table version >= 2 */ - - if ((rsdp->revision >= 2) && - (acpi_tb_checksum((u8 *) rsdp, ACPI_RSDP_XCHECKSUM_LENGTH) != 0)) { - return (AE_BAD_CHECKSUM); - } - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_find_root_pointer - * - * PARAMETERS: table_address - Where the table pointer is returned - * - * RETURN: Status, RSDP physical address - * - * DESCRIPTION: Search lower 1_mbyte of memory for the root system descriptor - * pointer structure. If it is found, set *RSDP to point to it. - * - * NOTE1: The RSDP must be either in the first 1_k of the Extended - * BIOS Data Area or between E0000 and FFFFF (From ACPI Spec.) - * Only a 32-bit physical address is necessary. - * - * NOTE2: This function is always available, regardless of the - * initialization state of the rest of ACPI. - * - ******************************************************************************/ - -acpi_status acpi_find_root_pointer(acpi_size *table_address) -{ - u8 *table_ptr; - u8 *mem_rover; - u32 physical_address; - - ACPI_FUNCTION_TRACE(acpi_find_root_pointer); - - /* 1a) Get the location of the Extended BIOS Data Area (EBDA) */ - - table_ptr = acpi_os_map_memory((acpi_physical_address) - ACPI_EBDA_PTR_LOCATION, - ACPI_EBDA_PTR_LENGTH); - if (!table_ptr) { - ACPI_ERROR((AE_INFO, - "Could not map memory at %8.8X for length %X", - ACPI_EBDA_PTR_LOCATION, ACPI_EBDA_PTR_LENGTH)); - - return_ACPI_STATUS(AE_NO_MEMORY); - } - - ACPI_MOVE_16_TO_32(&physical_address, table_ptr); - - /* Convert segment part to physical address */ - - physical_address <<= 4; - acpi_os_unmap_memory(table_ptr, ACPI_EBDA_PTR_LENGTH); - - /* EBDA present? */ - - if (physical_address > 0x400) { - /* - * 1b) Search EBDA paragraphs (EBDA is required to be a - * minimum of 1_k length) - */ - table_ptr = acpi_os_map_memory((acpi_physical_address) - physical_address, - ACPI_EBDA_WINDOW_SIZE); - if (!table_ptr) { - ACPI_ERROR((AE_INFO, - "Could not map memory at %8.8X for length %X", - physical_address, ACPI_EBDA_WINDOW_SIZE)); - - return_ACPI_STATUS(AE_NO_MEMORY); - } - - mem_rover = - acpi_tb_scan_memory_for_rsdp(table_ptr, - ACPI_EBDA_WINDOW_SIZE); - acpi_os_unmap_memory(table_ptr, ACPI_EBDA_WINDOW_SIZE); - - if (mem_rover) { - - /* Return the physical address */ - - physical_address += - (u32) ACPI_PTR_DIFF(mem_rover, table_ptr); - - *table_address = physical_address; - return_ACPI_STATUS(AE_OK); - } - } - - /* - * 2) Search upper memory: 16-byte boundaries in E0000h-FFFFFh - */ - table_ptr = acpi_os_map_memory((acpi_physical_address) - ACPI_HI_RSDP_WINDOW_BASE, - ACPI_HI_RSDP_WINDOW_SIZE); - - if (!table_ptr) { - ACPI_ERROR((AE_INFO, - "Could not map memory at %8.8X for length %X", - ACPI_HI_RSDP_WINDOW_BASE, - ACPI_HI_RSDP_WINDOW_SIZE)); - - return_ACPI_STATUS(AE_NO_MEMORY); - } - - mem_rover = - acpi_tb_scan_memory_for_rsdp(table_ptr, ACPI_HI_RSDP_WINDOW_SIZE); - acpi_os_unmap_memory(table_ptr, ACPI_HI_RSDP_WINDOW_SIZE); - - if (mem_rover) { - - /* Return the physical address */ - - physical_address = (u32) - (ACPI_HI_RSDP_WINDOW_BASE + - ACPI_PTR_DIFF(mem_rover, table_ptr)); - - *table_address = physical_address; - return_ACPI_STATUS(AE_OK); - } - - /* A valid RSDP was not found */ - - ACPI_ERROR((AE_INFO, "A valid RSDP was not found")); - return_ACPI_STATUS(AE_NOT_FOUND); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_scan_memory_for_rsdp - * - * PARAMETERS: start_address - Starting pointer for search - * Length - Maximum length to search - * - * RETURN: Pointer to the RSDP if found, otherwise NULL. - * - * DESCRIPTION: Search a block of memory for the RSDP signature - * - ******************************************************************************/ -static u8 *acpi_tb_scan_memory_for_rsdp(u8 * start_address, u32 length) -{ - acpi_status status; - u8 *mem_rover; - u8 *end_address; - - ACPI_FUNCTION_TRACE(tb_scan_memory_for_rsdp); - - end_address = start_address + length; - - /* Search from given start address for the requested length */ - - for (mem_rover = start_address; mem_rover < end_address; - mem_rover += ACPI_RSDP_SCAN_STEP) { - - /* The RSDP signature and checksum must both be correct */ - - status = - acpi_tb_validate_rsdp(ACPI_CAST_PTR - (struct acpi_table_rsdp, mem_rover)); - if (ACPI_SUCCESS(status)) { - - /* Sig and checksum valid, we have found a real RSDP */ - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "RSDP located at physical address %p\n", - mem_rover)); - return_PTR(mem_rover); - } - - /* No sig match or bad checksum, keep searching */ - } - - /* Searched entire block, no RSDP was found */ - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Searched entire block from %p, valid RSDP was not found\n", - start_address)); - return_PTR(NULL); -} diff --git a/drivers/acpi/utilities/Makefile b/drivers/acpi/utilities/Makefile deleted file mode 100644 index 66a71a54cb0d..000000000000 --- a/drivers/acpi/utilities/Makefile +++ /dev/null @@ -1,9 +0,0 @@ -# -# Makefile for all Linux ACPI interpreter subdirectories -# - -obj-y := utalloc.o utdebug.o uteval.o utinit.o utmisc.o utxface.o \ - utcopy.o utdelete.o utglobal.o utmath.o utobject.o \ - utstate.o utmutex.o utobject.o utresrc.o - -EXTRA_CFLAGS += $(ACPI_CFLAGS) diff --git a/drivers/acpi/utilities/utalloc.c b/drivers/acpi/utilities/utalloc.c deleted file mode 100644 index 2a017b29aa41..000000000000 --- a/drivers/acpi/utilities/utalloc.c +++ /dev/null @@ -1,383 +0,0 @@ -/****************************************************************************** - * - * Module Name: utalloc - local memory allocation routines - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_UTILITIES -ACPI_MODULE_NAME("utalloc") - -/******************************************************************************* - * - * FUNCTION: acpi_ut_create_caches - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Create all local caches - * - ******************************************************************************/ -acpi_status acpi_ut_create_caches(void) -{ - acpi_status status; - - /* Object Caches, for frequently used objects */ - - status = - acpi_os_create_cache("Acpi-Namespace", - sizeof(struct acpi_namespace_node), - ACPI_MAX_NAMESPACE_CACHE_DEPTH, - &acpi_gbl_namespace_cache); - if (ACPI_FAILURE(status)) { - return (status); - } - - status = - acpi_os_create_cache("Acpi-State", sizeof(union acpi_generic_state), - ACPI_MAX_STATE_CACHE_DEPTH, - &acpi_gbl_state_cache); - if (ACPI_FAILURE(status)) { - return (status); - } - - status = - acpi_os_create_cache("Acpi-Parse", - sizeof(struct acpi_parse_obj_common), - ACPI_MAX_PARSE_CACHE_DEPTH, - &acpi_gbl_ps_node_cache); - if (ACPI_FAILURE(status)) { - return (status); - } - - status = - acpi_os_create_cache("Acpi-ParseExt", - sizeof(struct acpi_parse_obj_named), - ACPI_MAX_EXTPARSE_CACHE_DEPTH, - &acpi_gbl_ps_node_ext_cache); - if (ACPI_FAILURE(status)) { - return (status); - } - - status = - acpi_os_create_cache("Acpi-Operand", - sizeof(union acpi_operand_object), - ACPI_MAX_OBJECT_CACHE_DEPTH, - &acpi_gbl_operand_cache); - if (ACPI_FAILURE(status)) { - return (status); - } -#ifdef ACPI_DBG_TRACK_ALLOCATIONS - - /* Memory allocation lists */ - - status = acpi_ut_create_list("Acpi-Global", 0, &acpi_gbl_global_list); - if (ACPI_FAILURE(status)) { - return (status); - } - - status = - acpi_ut_create_list("Acpi-Namespace", - sizeof(struct acpi_namespace_node), - &acpi_gbl_ns_node_list); - if (ACPI_FAILURE(status)) { - return (status); - } -#endif - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_delete_caches - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Purge and delete all local caches - * - ******************************************************************************/ - -acpi_status acpi_ut_delete_caches(void) -{ -#ifdef ACPI_DBG_TRACK_ALLOCATIONS - char buffer[7]; - - if (acpi_gbl_display_final_mem_stats) { - ACPI_STRCPY(buffer, "MEMORY"); - (void)acpi_db_display_statistics(buffer); - } -#endif - - (void)acpi_os_delete_cache(acpi_gbl_namespace_cache); - acpi_gbl_namespace_cache = NULL; - - (void)acpi_os_delete_cache(acpi_gbl_state_cache); - acpi_gbl_state_cache = NULL; - - (void)acpi_os_delete_cache(acpi_gbl_operand_cache); - acpi_gbl_operand_cache = NULL; - - (void)acpi_os_delete_cache(acpi_gbl_ps_node_cache); - acpi_gbl_ps_node_cache = NULL; - - (void)acpi_os_delete_cache(acpi_gbl_ps_node_ext_cache); - acpi_gbl_ps_node_ext_cache = NULL; - -#ifdef ACPI_DBG_TRACK_ALLOCATIONS - - /* Debug only - display leftover memory allocation, if any */ - - acpi_ut_dump_allocations(ACPI_UINT32_MAX, NULL); - - /* Free memory lists */ - - ACPI_FREE(acpi_gbl_global_list); - acpi_gbl_global_list = NULL; - - ACPI_FREE(acpi_gbl_ns_node_list); - acpi_gbl_ns_node_list = NULL; -#endif - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_validate_buffer - * - * PARAMETERS: Buffer - Buffer descriptor to be validated - * - * RETURN: Status - * - * DESCRIPTION: Perform parameter validation checks on an struct acpi_buffer - * - ******************************************************************************/ - -acpi_status acpi_ut_validate_buffer(struct acpi_buffer * buffer) -{ - - /* Obviously, the structure pointer must be valid */ - - if (!buffer) { - return (AE_BAD_PARAMETER); - } - - /* Special semantics for the length */ - - if ((buffer->length == ACPI_NO_BUFFER) || - (buffer->length == ACPI_ALLOCATE_BUFFER) || - (buffer->length == ACPI_ALLOCATE_LOCAL_BUFFER)) { - return (AE_OK); - } - - /* Length is valid, the buffer pointer must be also */ - - if (!buffer->pointer) { - return (AE_BAD_PARAMETER); - } - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_initialize_buffer - * - * PARAMETERS: Buffer - Buffer to be validated - * required_length - Length needed - * - * RETURN: Status - * - * DESCRIPTION: Validate that the buffer is of the required length or - * allocate a new buffer. Returned buffer is always zeroed. - * - ******************************************************************************/ - -acpi_status -acpi_ut_initialize_buffer(struct acpi_buffer * buffer, - acpi_size required_length) -{ - acpi_size input_buffer_length; - - /* Parameter validation */ - - if (!buffer || !required_length) { - return (AE_BAD_PARAMETER); - } - - /* - * Buffer->Length is used as both an input and output parameter. Get the - * input actual length and set the output required buffer length. - */ - input_buffer_length = buffer->length; - buffer->length = required_length; - - /* - * The input buffer length contains the actual buffer length, or the type - * of buffer to be allocated by this routine. - */ - switch (input_buffer_length) { - case ACPI_NO_BUFFER: - - /* Return the exception (and the required buffer length) */ - - return (AE_BUFFER_OVERFLOW); - - case ACPI_ALLOCATE_BUFFER: - - /* Allocate a new buffer */ - - buffer->pointer = acpi_os_allocate(required_length); - break; - - case ACPI_ALLOCATE_LOCAL_BUFFER: - - /* Allocate a new buffer with local interface to allow tracking */ - - buffer->pointer = ACPI_ALLOCATE(required_length); - break; - - default: - - /* Existing buffer: Validate the size of the buffer */ - - if (input_buffer_length < required_length) { - return (AE_BUFFER_OVERFLOW); - } - break; - } - - /* Validate allocation from above or input buffer pointer */ - - if (!buffer->pointer) { - return (AE_NO_MEMORY); - } - - /* Have a valid buffer, clear it */ - - ACPI_MEMSET(buffer->pointer, 0, required_length); - return (AE_OK); -} - -#ifdef NOT_USED_BY_LINUX -/******************************************************************************* - * - * FUNCTION: acpi_ut_allocate - * - * PARAMETERS: Size - Size of the allocation - * Component - Component type of caller - * Module - Source file name of caller - * Line - Line number of caller - * - * RETURN: Address of the allocated memory on success, NULL on failure. - * - * DESCRIPTION: Subsystem equivalent of malloc. - * - ******************************************************************************/ - -void *acpi_ut_allocate(acpi_size size, - u32 component, const char *module, u32 line) -{ - void *allocation; - - ACPI_FUNCTION_TRACE_U32(ut_allocate, size); - - /* Check for an inadvertent size of zero bytes */ - - if (!size) { - ACPI_WARNING((module, line, - "Attempt to allocate zero bytes, allocating 1 byte")); - size = 1; - } - - allocation = acpi_os_allocate(size); - if (!allocation) { - - /* Report allocation error */ - - ACPI_WARNING((module, line, - "Could not allocate size %X", (u32) size)); - - return_PTR(NULL); - } - - return_PTR(allocation); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_allocate_zeroed - * - * PARAMETERS: Size - Size of the allocation - * Component - Component type of caller - * Module - Source file name of caller - * Line - Line number of caller - * - * RETURN: Address of the allocated memory on success, NULL on failure. - * - * DESCRIPTION: Subsystem equivalent of calloc. Allocate and zero memory. - * - ******************************************************************************/ - -void *acpi_ut_allocate_zeroed(acpi_size size, - u32 component, const char *module, u32 line) -{ - void *allocation; - - ACPI_FUNCTION_ENTRY(); - - allocation = acpi_ut_allocate(size, component, module, line); - if (allocation) { - - /* Clear the memory block */ - - ACPI_MEMSET(allocation, 0, size); - } - - return (allocation); -} -#endif diff --git a/drivers/acpi/utilities/utcopy.c b/drivers/acpi/utilities/utcopy.c deleted file mode 100644 index e6f3002312e5..000000000000 --- a/drivers/acpi/utilities/utcopy.c +++ /dev/null @@ -1,970 +0,0 @@ -/****************************************************************************** - * - * Module Name: utcopy - Internal to external object translation utilities - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - - -#define _COMPONENT ACPI_UTILITIES -ACPI_MODULE_NAME("utcopy") - -/* Local prototypes */ -static acpi_status -acpi_ut_copy_isimple_to_esimple(union acpi_operand_object *internal_object, - union acpi_object *external_object, - u8 * data_space, acpi_size * buffer_space_used); - -static acpi_status -acpi_ut_copy_ielement_to_ielement(u8 object_type, - union acpi_operand_object *source_object, - union acpi_generic_state *state, - void *context); - -static acpi_status -acpi_ut_copy_ipackage_to_epackage(union acpi_operand_object *internal_object, - u8 * buffer, acpi_size * space_used); - -static acpi_status -acpi_ut_copy_esimple_to_isimple(union acpi_object *user_obj, - union acpi_operand_object **return_obj); - -static acpi_status -acpi_ut_copy_epackage_to_ipackage(union acpi_object *external_object, - union acpi_operand_object **internal_object); - -static acpi_status -acpi_ut_copy_simple_object(union acpi_operand_object *source_desc, - union acpi_operand_object *dest_desc); - -static acpi_status -acpi_ut_copy_ielement_to_eelement(u8 object_type, - union acpi_operand_object *source_object, - union acpi_generic_state *state, - void *context); - -static acpi_status -acpi_ut_copy_ipackage_to_ipackage(union acpi_operand_object *source_obj, - union acpi_operand_object *dest_obj, - struct acpi_walk_state *walk_state); - -/******************************************************************************* - * - * FUNCTION: acpi_ut_copy_isimple_to_esimple - * - * PARAMETERS: internal_object - Source object to be copied - * external_object - Where to return the copied object - * data_space - Where object data is returned (such as - * buffer and string data) - * buffer_space_used - Length of data_space that was used - * - * RETURN: Status - * - * DESCRIPTION: This function is called to copy a simple internal object to - * an external object. - * - * The data_space buffer is assumed to have sufficient space for - * the object. - * - ******************************************************************************/ - -static acpi_status -acpi_ut_copy_isimple_to_esimple(union acpi_operand_object *internal_object, - union acpi_object *external_object, - u8 * data_space, acpi_size * buffer_space_used) -{ - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(ut_copy_isimple_to_esimple); - - *buffer_space_used = 0; - - /* - * Check for NULL object case (could be an uninitialized - * package element) - */ - if (!internal_object) { - return_ACPI_STATUS(AE_OK); - } - - /* Always clear the external object */ - - ACPI_MEMSET(external_object, 0, sizeof(union acpi_object)); - - /* - * In general, the external object will be the same type as - * the internal object - */ - external_object->type = ACPI_GET_OBJECT_TYPE(internal_object); - - /* However, only a limited number of external types are supported */ - - switch (ACPI_GET_OBJECT_TYPE(internal_object)) { - case ACPI_TYPE_STRING: - - external_object->string.pointer = (char *)data_space; - external_object->string.length = internal_object->string.length; - *buffer_space_used = ACPI_ROUND_UP_TO_NATIVE_WORD((acpi_size) - internal_object-> - string. - length + 1); - - ACPI_MEMCPY((void *)data_space, - (void *)internal_object->string.pointer, - (acpi_size) internal_object->string.length + 1); - break; - - case ACPI_TYPE_BUFFER: - - external_object->buffer.pointer = data_space; - external_object->buffer.length = internal_object->buffer.length; - *buffer_space_used = - ACPI_ROUND_UP_TO_NATIVE_WORD(internal_object->string. - length); - - ACPI_MEMCPY((void *)data_space, - (void *)internal_object->buffer.pointer, - internal_object->buffer.length); - break; - - case ACPI_TYPE_INTEGER: - - external_object->integer.value = internal_object->integer.value; - break; - - case ACPI_TYPE_LOCAL_REFERENCE: - - /* This is an object reference. */ - - switch (internal_object->reference.class) { - case ACPI_REFCLASS_NAME: - - /* - * For namepath, return the object handle ("reference") - * We are referring to the namespace node - */ - external_object->reference.handle = - internal_object->reference.node; - external_object->reference.actual_type = - acpi_ns_get_type(internal_object->reference.node); - break; - - default: - - /* All other reference types are unsupported */ - - return_ACPI_STATUS(AE_TYPE); - } - break; - - case ACPI_TYPE_PROCESSOR: - - external_object->processor.proc_id = - internal_object->processor.proc_id; - external_object->processor.pblk_address = - internal_object->processor.address; - external_object->processor.pblk_length = - internal_object->processor.length; - break; - - case ACPI_TYPE_POWER: - - external_object->power_resource.system_level = - internal_object->power_resource.system_level; - - external_object->power_resource.resource_order = - internal_object->power_resource.resource_order; - break; - - default: - /* - * There is no corresponding external object type - */ - ACPI_ERROR((AE_INFO, - "Unsupported object type, cannot convert to external object: %s", - acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE - (internal_object)))); - - return_ACPI_STATUS(AE_SUPPORT); - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_copy_ielement_to_eelement - * - * PARAMETERS: acpi_pkg_callback - * - * RETURN: Status - * - * DESCRIPTION: Copy one package element to another package element - * - ******************************************************************************/ - -static acpi_status -acpi_ut_copy_ielement_to_eelement(u8 object_type, - union acpi_operand_object *source_object, - union acpi_generic_state *state, - void *context) -{ - acpi_status status = AE_OK; - struct acpi_pkg_info *info = (struct acpi_pkg_info *)context; - acpi_size object_space; - u32 this_index; - union acpi_object *target_object; - - ACPI_FUNCTION_ENTRY(); - - this_index = state->pkg.index; - target_object = (union acpi_object *) - &((union acpi_object *)(state->pkg.dest_object))->package. - elements[this_index]; - - switch (object_type) { - case ACPI_COPY_TYPE_SIMPLE: - - /* - * This is a simple or null object - */ - status = acpi_ut_copy_isimple_to_esimple(source_object, - target_object, - info->free_space, - &object_space); - if (ACPI_FAILURE(status)) { - return (status); - } - break; - - case ACPI_COPY_TYPE_PACKAGE: - - /* - * Build the package object - */ - target_object->type = ACPI_TYPE_PACKAGE; - target_object->package.count = source_object->package.count; - target_object->package.elements = - ACPI_CAST_PTR(union acpi_object, info->free_space); - - /* - * Pass the new package object back to the package walk routine - */ - state->pkg.this_target_obj = target_object; - - /* - * Save space for the array of objects (Package elements) - * update the buffer length counter - */ - object_space = ACPI_ROUND_UP_TO_NATIVE_WORD((acpi_size) - target_object-> - package.count * - sizeof(union - acpi_object)); - break; - - default: - return (AE_BAD_PARAMETER); - } - - info->free_space += object_space; - info->length += object_space; - return (status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_copy_ipackage_to_epackage - * - * PARAMETERS: internal_object - Pointer to the object we are returning - * Buffer - Where the object is returned - * space_used - Where the object length is returned - * - * RETURN: Status - * - * DESCRIPTION: This function is called to place a package object in a user - * buffer. A package object by definition contains other objects. - * - * The buffer is assumed to have sufficient space for the object. - * The caller must have verified the buffer length needed using the - * acpi_ut_get_object_size function before calling this function. - * - ******************************************************************************/ - -static acpi_status -acpi_ut_copy_ipackage_to_epackage(union acpi_operand_object *internal_object, - u8 * buffer, acpi_size * space_used) -{ - union acpi_object *external_object; - acpi_status status; - struct acpi_pkg_info info; - - ACPI_FUNCTION_TRACE(ut_copy_ipackage_to_epackage); - - /* - * First package at head of the buffer - */ - external_object = ACPI_CAST_PTR(union acpi_object, buffer); - - /* - * Free space begins right after the first package - */ - info.length = ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object)); - info.free_space = - buffer + ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object)); - info.object_space = 0; - info.num_packages = 1; - - external_object->type = ACPI_GET_OBJECT_TYPE(internal_object); - external_object->package.count = internal_object->package.count; - external_object->package.elements = ACPI_CAST_PTR(union acpi_object, - info.free_space); - - /* - * Leave room for an array of ACPI_OBJECTS in the buffer - * and move the free space past it - */ - info.length += (acpi_size) external_object->package.count * - ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object)); - info.free_space += external_object->package.count * - ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object)); - - status = acpi_ut_walk_package_tree(internal_object, external_object, - acpi_ut_copy_ielement_to_eelement, - &info); - - *space_used = info.length; - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_copy_iobject_to_eobject - * - * PARAMETERS: internal_object - The internal object to be converted - * buffer_ptr - Where the object is returned - * - * RETURN: Status - * - * DESCRIPTION: This function is called to build an API object to be returned to - * the caller. - * - ******************************************************************************/ - -acpi_status -acpi_ut_copy_iobject_to_eobject(union acpi_operand_object *internal_object, - struct acpi_buffer *ret_buffer) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ut_copy_iobject_to_eobject); - - if (ACPI_GET_OBJECT_TYPE(internal_object) == ACPI_TYPE_PACKAGE) { - /* - * Package object: Copy all subobjects (including - * nested packages) - */ - status = acpi_ut_copy_ipackage_to_epackage(internal_object, - ret_buffer->pointer, - &ret_buffer->length); - } else { - /* - * Build a simple object (no nested objects) - */ - status = acpi_ut_copy_isimple_to_esimple(internal_object, - ACPI_CAST_PTR(union - acpi_object, - ret_buffer-> - pointer), - ACPI_ADD_PTR(u8, - ret_buffer-> - pointer, - ACPI_ROUND_UP_TO_NATIVE_WORD - (sizeof - (union - acpi_object))), - &ret_buffer->length); - /* - * build simple does not include the object size in the length - * so we add it in here - */ - ret_buffer->length += sizeof(union acpi_object); - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_copy_esimple_to_isimple - * - * PARAMETERS: external_object - The external object to be converted - * ret_internal_object - Where the internal object is returned - * - * RETURN: Status - * - * DESCRIPTION: This function copies an external object to an internal one. - * NOTE: Pointers can be copied, we don't need to copy data. - * (The pointers have to be valid in our address space no matter - * what we do with them!) - * - ******************************************************************************/ - -static acpi_status -acpi_ut_copy_esimple_to_isimple(union acpi_object *external_object, - union acpi_operand_object **ret_internal_object) -{ - union acpi_operand_object *internal_object; - - ACPI_FUNCTION_TRACE(ut_copy_esimple_to_isimple); - - /* - * Simple types supported are: String, Buffer, Integer - */ - switch (external_object->type) { - case ACPI_TYPE_STRING: - case ACPI_TYPE_BUFFER: - case ACPI_TYPE_INTEGER: - case ACPI_TYPE_LOCAL_REFERENCE: - - internal_object = acpi_ut_create_internal_object((u8) - external_object-> - type); - if (!internal_object) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - break; - - case ACPI_TYPE_ANY: /* This is the case for a NULL object */ - - *ret_internal_object = NULL; - return_ACPI_STATUS(AE_OK); - - default: - /* All other types are not supported */ - - ACPI_ERROR((AE_INFO, - "Unsupported object type, cannot convert to internal object: %s", - acpi_ut_get_type_name(external_object->type))); - - return_ACPI_STATUS(AE_SUPPORT); - } - - /* Must COPY string and buffer contents */ - - switch (external_object->type) { - case ACPI_TYPE_STRING: - - internal_object->string.pointer = - ACPI_ALLOCATE_ZEROED((acpi_size) external_object->string. - length + 1); - if (!internal_object->string.pointer) { - goto error_exit; - } - - ACPI_MEMCPY(internal_object->string.pointer, - external_object->string.pointer, - external_object->string.length); - - internal_object->string.length = external_object->string.length; - break; - - case ACPI_TYPE_BUFFER: - - internal_object->buffer.pointer = - ACPI_ALLOCATE_ZEROED(external_object->buffer.length); - if (!internal_object->buffer.pointer) { - goto error_exit; - } - - ACPI_MEMCPY(internal_object->buffer.pointer, - external_object->buffer.pointer, - external_object->buffer.length); - - internal_object->buffer.length = external_object->buffer.length; - - /* Mark buffer data valid */ - - internal_object->buffer.flags |= AOPOBJ_DATA_VALID; - break; - - case ACPI_TYPE_INTEGER: - - internal_object->integer.value = external_object->integer.value; - break; - - case ACPI_TYPE_LOCAL_REFERENCE: - - /* TBD: should validate incoming handle */ - - internal_object->reference.class = ACPI_REFCLASS_NAME; - internal_object->reference.node = - external_object->reference.handle; - break; - - default: - /* Other types can't get here */ - break; - } - - *ret_internal_object = internal_object; - return_ACPI_STATUS(AE_OK); - - error_exit: - acpi_ut_remove_reference(internal_object); - return_ACPI_STATUS(AE_NO_MEMORY); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_copy_epackage_to_ipackage - * - * PARAMETERS: external_object - The external object to be converted - * internal_object - Where the internal object is returned - * - * RETURN: Status - * - * DESCRIPTION: Copy an external package object to an internal package. - * Handles nested packages. - * - ******************************************************************************/ - -static acpi_status -acpi_ut_copy_epackage_to_ipackage(union acpi_object *external_object, - union acpi_operand_object **internal_object) -{ - acpi_status status = AE_OK; - union acpi_operand_object *package_object; - union acpi_operand_object **package_elements; - u32 i; - - ACPI_FUNCTION_TRACE(ut_copy_epackage_to_ipackage); - - /* Create the package object */ - - package_object = - acpi_ut_create_package_object(external_object->package.count); - if (!package_object) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - package_elements = package_object->package.elements; - - /* - * Recursive implementation. Probably ok, since nested external packages - * as parameters should be very rare. - */ - for (i = 0; i < external_object->package.count; i++) { - status = - acpi_ut_copy_eobject_to_iobject(&external_object->package. - elements[i], - &package_elements[i]); - if (ACPI_FAILURE(status)) { - - /* Truncate package and delete it */ - - package_object->package.count = i; - package_elements[i] = NULL; - acpi_ut_remove_reference(package_object); - return_ACPI_STATUS(status); - } - } - - /* Mark package data valid */ - - package_object->package.flags |= AOPOBJ_DATA_VALID; - - *internal_object = package_object; - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_copy_eobject_to_iobject - * - * PARAMETERS: external_object - The external object to be converted - * internal_object - Where the internal object is returned - * - * RETURN: Status - the status of the call - * - * DESCRIPTION: Converts an external object to an internal object. - * - ******************************************************************************/ - -acpi_status -acpi_ut_copy_eobject_to_iobject(union acpi_object *external_object, - union acpi_operand_object **internal_object) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ut_copy_eobject_to_iobject); - - if (external_object->type == ACPI_TYPE_PACKAGE) { - status = - acpi_ut_copy_epackage_to_ipackage(external_object, - internal_object); - } else { - /* - * Build a simple object (no nested objects) - */ - status = - acpi_ut_copy_esimple_to_isimple(external_object, - internal_object); - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_copy_simple_object - * - * PARAMETERS: source_desc - The internal object to be copied - * dest_desc - New target object - * - * RETURN: Status - * - * DESCRIPTION: Simple copy of one internal object to another. Reference count - * of the destination object is preserved. - * - ******************************************************************************/ - -static acpi_status -acpi_ut_copy_simple_object(union acpi_operand_object *source_desc, - union acpi_operand_object *dest_desc) -{ - u16 reference_count; - union acpi_operand_object *next_object; - - /* Save fields from destination that we don't want to overwrite */ - - reference_count = dest_desc->common.reference_count; - next_object = dest_desc->common.next_object; - - /* Copy the entire source object over the destination object */ - - ACPI_MEMCPY((char *)dest_desc, (char *)source_desc, - sizeof(union acpi_operand_object)); - - /* Restore the saved fields */ - - dest_desc->common.reference_count = reference_count; - dest_desc->common.next_object = next_object; - - /* New object is not static, regardless of source */ - - dest_desc->common.flags &= ~AOPOBJ_STATIC_POINTER; - - /* Handle the objects with extra data */ - - switch (ACPI_GET_OBJECT_TYPE(dest_desc)) { - case ACPI_TYPE_BUFFER: - /* - * Allocate and copy the actual buffer if and only if: - * 1) There is a valid buffer pointer - * 2) The buffer has a length > 0 - */ - if ((source_desc->buffer.pointer) && - (source_desc->buffer.length)) { - dest_desc->buffer.pointer = - ACPI_ALLOCATE(source_desc->buffer.length); - if (!dest_desc->buffer.pointer) { - return (AE_NO_MEMORY); - } - - /* Copy the actual buffer data */ - - ACPI_MEMCPY(dest_desc->buffer.pointer, - source_desc->buffer.pointer, - source_desc->buffer.length); - } - break; - - case ACPI_TYPE_STRING: - /* - * Allocate and copy the actual string if and only if: - * 1) There is a valid string pointer - * (Pointer to a NULL string is allowed) - */ - if (source_desc->string.pointer) { - dest_desc->string.pointer = - ACPI_ALLOCATE((acpi_size) source_desc->string. - length + 1); - if (!dest_desc->string.pointer) { - return (AE_NO_MEMORY); - } - - /* Copy the actual string data */ - - ACPI_MEMCPY(dest_desc->string.pointer, - source_desc->string.pointer, - (acpi_size) source_desc->string.length + 1); - } - break; - - case ACPI_TYPE_LOCAL_REFERENCE: - /* - * We copied the reference object, so we now must add a reference - * to the object pointed to by the reference - * - * DDBHandle reference (from Load/load_table) is a special reference, - * it does not have a Reference.Object, so does not need to - * increase the reference count - */ - if (source_desc->reference.class == ACPI_REFCLASS_TABLE) { - break; - } - - acpi_ut_add_reference(source_desc->reference.object); - break; - - case ACPI_TYPE_REGION: - /* - * We copied the Region Handler, so we now must add a reference - */ - if (dest_desc->region.handler) { - acpi_ut_add_reference(dest_desc->region.handler); - } - break; - - default: - /* Nothing to do for other simple objects */ - break; - } - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_copy_ielement_to_ielement - * - * PARAMETERS: acpi_pkg_callback - * - * RETURN: Status - * - * DESCRIPTION: Copy one package element to another package element - * - ******************************************************************************/ - -static acpi_status -acpi_ut_copy_ielement_to_ielement(u8 object_type, - union acpi_operand_object *source_object, - union acpi_generic_state *state, - void *context) -{ - acpi_status status = AE_OK; - u32 this_index; - union acpi_operand_object **this_target_ptr; - union acpi_operand_object *target_object; - - ACPI_FUNCTION_ENTRY(); - - this_index = state->pkg.index; - this_target_ptr = (union acpi_operand_object **) - &state->pkg.dest_object->package.elements[this_index]; - - switch (object_type) { - case ACPI_COPY_TYPE_SIMPLE: - - /* A null source object indicates a (legal) null package element */ - - if (source_object) { - /* - * This is a simple object, just copy it - */ - target_object = - acpi_ut_create_internal_object(ACPI_GET_OBJECT_TYPE - (source_object)); - if (!target_object) { - return (AE_NO_MEMORY); - } - - status = - acpi_ut_copy_simple_object(source_object, - target_object); - if (ACPI_FAILURE(status)) { - goto error_exit; - } - - *this_target_ptr = target_object; - } else { - /* Pass through a null element */ - - *this_target_ptr = NULL; - } - break; - - case ACPI_COPY_TYPE_PACKAGE: - - /* - * This object is a package - go down another nesting level - * Create and build the package object - */ - target_object = - acpi_ut_create_package_object(source_object->package.count); - if (!target_object) { - return (AE_NO_MEMORY); - } - - target_object->common.flags = source_object->common.flags; - - /* Pass the new package object back to the package walk routine */ - - state->pkg.this_target_obj = target_object; - - /* Store the object pointer in the parent package object */ - - *this_target_ptr = target_object; - break; - - default: - return (AE_BAD_PARAMETER); - } - - return (status); - - error_exit: - acpi_ut_remove_reference(target_object); - return (status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_copy_ipackage_to_ipackage - * - * PARAMETERS: *source_obj - Pointer to the source package object - * *dest_obj - Where the internal object is returned - * - * RETURN: Status - the status of the call - * - * DESCRIPTION: This function is called to copy an internal package object - * into another internal package object. - * - ******************************************************************************/ - -static acpi_status -acpi_ut_copy_ipackage_to_ipackage(union acpi_operand_object *source_obj, - union acpi_operand_object *dest_obj, - struct acpi_walk_state *walk_state) -{ - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(ut_copy_ipackage_to_ipackage); - - dest_obj->common.type = ACPI_GET_OBJECT_TYPE(source_obj); - dest_obj->common.flags = source_obj->common.flags; - dest_obj->package.count = source_obj->package.count; - - /* - * Create the object array and walk the source package tree - */ - dest_obj->package.elements = ACPI_ALLOCATE_ZEROED(((acpi_size) - source_obj->package. - count + - 1) * sizeof(void *)); - if (!dest_obj->package.elements) { - ACPI_ERROR((AE_INFO, "Package allocation failure")); - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* - * Copy the package element-by-element by walking the package "tree". - * This handles nested packages of arbitrary depth. - */ - status = acpi_ut_walk_package_tree(source_obj, dest_obj, - acpi_ut_copy_ielement_to_ielement, - walk_state); - if (ACPI_FAILURE(status)) { - - /* On failure, delete the destination package object */ - - acpi_ut_remove_reference(dest_obj); - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_copy_iobject_to_iobject - * - * PARAMETERS: walk_state - Current walk state - * source_desc - The internal object to be copied - * dest_desc - Where the copied object is returned - * - * RETURN: Status - * - * DESCRIPTION: Copy an internal object to a new internal object - * - ******************************************************************************/ - -acpi_status -acpi_ut_copy_iobject_to_iobject(union acpi_operand_object *source_desc, - union acpi_operand_object **dest_desc, - struct acpi_walk_state *walk_state) -{ - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(ut_copy_iobject_to_iobject); - - /* Create the top level object */ - - *dest_desc = - acpi_ut_create_internal_object(ACPI_GET_OBJECT_TYPE(source_desc)); - if (!*dest_desc) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Copy the object and possible subobjects */ - - if (ACPI_GET_OBJECT_TYPE(source_desc) == ACPI_TYPE_PACKAGE) { - status = - acpi_ut_copy_ipackage_to_ipackage(source_desc, *dest_desc, - walk_state); - } else { - status = acpi_ut_copy_simple_object(source_desc, *dest_desc); - } - - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/utilities/utdebug.c b/drivers/acpi/utilities/utdebug.c deleted file mode 100644 index 9a3538c497d0..000000000000 --- a/drivers/acpi/utilities/utdebug.c +++ /dev/null @@ -1,651 +0,0 @@ -/****************************************************************************** - * - * Module Name: utdebug - Debug print routines - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include - -#define _COMPONENT ACPI_UTILITIES -ACPI_MODULE_NAME("utdebug") -#ifdef ACPI_DEBUG_OUTPUT -static acpi_thread_id acpi_gbl_prev_thread_id; -static char *acpi_gbl_fn_entry_str = "----Entry"; -static char *acpi_gbl_fn_exit_str = "----Exit-"; - -/* Local prototypes */ - -static const char *acpi_ut_trim_function_name(const char *function_name); - -/******************************************************************************* - * - * FUNCTION: acpi_ut_init_stack_ptr_trace - * - * PARAMETERS: None - * - * RETURN: None - * - * DESCRIPTION: Save the current CPU stack pointer at subsystem startup - * - ******************************************************************************/ - -void acpi_ut_init_stack_ptr_trace(void) -{ - acpi_size current_sp; - - acpi_gbl_entry_stack_pointer = ¤t_sp; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_track_stack_ptr - * - * PARAMETERS: None - * - * RETURN: None - * - * DESCRIPTION: Save the current CPU stack pointer - * - ******************************************************************************/ - -void acpi_ut_track_stack_ptr(void) -{ - acpi_size current_sp; - - if (¤t_sp < acpi_gbl_lowest_stack_pointer) { - acpi_gbl_lowest_stack_pointer = ¤t_sp; - } - - if (acpi_gbl_nesting_level > acpi_gbl_deepest_nesting) { - acpi_gbl_deepest_nesting = acpi_gbl_nesting_level; - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_trim_function_name - * - * PARAMETERS: function_name - Ascii string containing a procedure name - * - * RETURN: Updated pointer to the function name - * - * DESCRIPTION: Remove the "Acpi" prefix from the function name, if present. - * This allows compiler macros such as __func__ to be used - * with no change to the debug output. - * - ******************************************************************************/ - -static const char *acpi_ut_trim_function_name(const char *function_name) -{ - - /* All Function names are longer than 4 chars, check is safe */ - - if (*(ACPI_CAST_PTR(u32, function_name)) == ACPI_PREFIX_MIXED) { - - /* This is the case where the original source has not been modified */ - - return (function_name + 4); - } - - if (*(ACPI_CAST_PTR(u32, function_name)) == ACPI_PREFIX_LOWER) { - - /* This is the case where the source has been 'linuxized' */ - - return (function_name + 5); - } - - return (function_name); -} - -/******************************************************************************* - * - * FUNCTION: acpi_debug_print - * - * PARAMETERS: requested_debug_level - Requested debug print level - * line_number - Caller's line number (for error output) - * function_name - Caller's procedure name - * module_name - Caller's module name - * component_id - Caller's component ID - * Format - Printf format field - * ... - Optional printf arguments - * - * RETURN: None - * - * DESCRIPTION: Print error message with prefix consisting of the module name, - * line number, and component ID. - * - ******************************************************************************/ - -void ACPI_INTERNAL_VAR_XFACE -acpi_debug_print(u32 requested_debug_level, - u32 line_number, - const char *function_name, - const char *module_name, - u32 component_id, const char *format, ...) -{ - acpi_thread_id thread_id; - va_list args; - - /* - * Stay silent if the debug level or component ID is disabled - */ - if (!(requested_debug_level & acpi_dbg_level) || - !(component_id & acpi_dbg_layer)) { - return; - } - - /* - * Thread tracking and context switch notification - */ - thread_id = acpi_os_get_thread_id(); - if (thread_id != acpi_gbl_prev_thread_id) { - if (ACPI_LV_THREADS & acpi_dbg_level) { - acpi_os_printf - ("\n**** Context Switch from TID %lX to TID %lX ****\n\n", - (unsigned long)acpi_gbl_prev_thread_id, - (unsigned long)thread_id); - } - - acpi_gbl_prev_thread_id = thread_id; - } - - /* - * Display the module name, current line number, thread ID (if requested), - * current procedure nesting level, and the current procedure name - */ - acpi_os_printf("%8s-%04ld ", module_name, line_number); - - if (ACPI_LV_THREADS & acpi_dbg_level) { - acpi_os_printf("[%04lX] ", (unsigned long)thread_id); - } - - acpi_os_printf("[%02ld] %-22.22s: ", - acpi_gbl_nesting_level, - acpi_ut_trim_function_name(function_name)); - - va_start(args, format); - acpi_os_vprintf(format, args); - va_end(args); -} - -ACPI_EXPORT_SYMBOL(acpi_debug_print) - -/******************************************************************************* - * - * FUNCTION: acpi_debug_print_raw - * - * PARAMETERS: requested_debug_level - Requested debug print level - * line_number - Caller's line number - * function_name - Caller's procedure name - * module_name - Caller's module name - * component_id - Caller's component ID - * Format - Printf format field - * ... - Optional printf arguments - * - * RETURN: None - * - * DESCRIPTION: Print message with no headers. Has same interface as - * debug_print so that the same macros can be used. - * - ******************************************************************************/ -void ACPI_INTERNAL_VAR_XFACE -acpi_debug_print_raw(u32 requested_debug_level, - u32 line_number, - const char *function_name, - const char *module_name, - u32 component_id, const char *format, ...) -{ - va_list args; - - if (!(requested_debug_level & acpi_dbg_level) || - !(component_id & acpi_dbg_layer)) { - return; - } - - va_start(args, format); - acpi_os_vprintf(format, args); - va_end(args); -} - -ACPI_EXPORT_SYMBOL(acpi_debug_print_raw) - -/******************************************************************************* - * - * FUNCTION: acpi_ut_trace - * - * PARAMETERS: line_number - Caller's line number - * function_name - Caller's procedure name - * module_name - Caller's module name - * component_id - Caller's component ID - * - * RETURN: None - * - * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is - * set in debug_level - * - ******************************************************************************/ -void -acpi_ut_trace(u32 line_number, - const char *function_name, - const char *module_name, u32 component_id) -{ - - acpi_gbl_nesting_level++; - acpi_ut_track_stack_ptr(); - - acpi_debug_print(ACPI_LV_FUNCTIONS, - line_number, function_name, module_name, component_id, - "%s\n", acpi_gbl_fn_entry_str); -} - -ACPI_EXPORT_SYMBOL(acpi_ut_trace) - -/******************************************************************************* - * - * FUNCTION: acpi_ut_trace_ptr - * - * PARAMETERS: line_number - Caller's line number - * function_name - Caller's procedure name - * module_name - Caller's module name - * component_id - Caller's component ID - * Pointer - Pointer to display - * - * RETURN: None - * - * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is - * set in debug_level - * - ******************************************************************************/ -void -acpi_ut_trace_ptr(u32 line_number, - const char *function_name, - const char *module_name, u32 component_id, void *pointer) -{ - acpi_gbl_nesting_level++; - acpi_ut_track_stack_ptr(); - - acpi_debug_print(ACPI_LV_FUNCTIONS, - line_number, function_name, module_name, component_id, - "%s %p\n", acpi_gbl_fn_entry_str, pointer); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_trace_str - * - * PARAMETERS: line_number - Caller's line number - * function_name - Caller's procedure name - * module_name - Caller's module name - * component_id - Caller's component ID - * String - Additional string to display - * - * RETURN: None - * - * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is - * set in debug_level - * - ******************************************************************************/ - -void -acpi_ut_trace_str(u32 line_number, - const char *function_name, - const char *module_name, u32 component_id, char *string) -{ - - acpi_gbl_nesting_level++; - acpi_ut_track_stack_ptr(); - - acpi_debug_print(ACPI_LV_FUNCTIONS, - line_number, function_name, module_name, component_id, - "%s %s\n", acpi_gbl_fn_entry_str, string); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_trace_u32 - * - * PARAMETERS: line_number - Caller's line number - * function_name - Caller's procedure name - * module_name - Caller's module name - * component_id - Caller's component ID - * Integer - Integer to display - * - * RETURN: None - * - * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is - * set in debug_level - * - ******************************************************************************/ - -void -acpi_ut_trace_u32(u32 line_number, - const char *function_name, - const char *module_name, u32 component_id, u32 integer) -{ - - acpi_gbl_nesting_level++; - acpi_ut_track_stack_ptr(); - - acpi_debug_print(ACPI_LV_FUNCTIONS, - line_number, function_name, module_name, component_id, - "%s %08X\n", acpi_gbl_fn_entry_str, integer); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_exit - * - * PARAMETERS: line_number - Caller's line number - * function_name - Caller's procedure name - * module_name - Caller's module name - * component_id - Caller's component ID - * - * RETURN: None - * - * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is - * set in debug_level - * - ******************************************************************************/ - -void -acpi_ut_exit(u32 line_number, - const char *function_name, - const char *module_name, u32 component_id) -{ - - acpi_debug_print(ACPI_LV_FUNCTIONS, - line_number, function_name, module_name, component_id, - "%s\n", acpi_gbl_fn_exit_str); - - acpi_gbl_nesting_level--; -} - -ACPI_EXPORT_SYMBOL(acpi_ut_exit) - -/******************************************************************************* - * - * FUNCTION: acpi_ut_status_exit - * - * PARAMETERS: line_number - Caller's line number - * function_name - Caller's procedure name - * module_name - Caller's module name - * component_id - Caller's component ID - * Status - Exit status code - * - * RETURN: None - * - * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is - * set in debug_level. Prints exit status also. - * - ******************************************************************************/ -void -acpi_ut_status_exit(u32 line_number, - const char *function_name, - const char *module_name, - u32 component_id, acpi_status status) -{ - - if (ACPI_SUCCESS(status)) { - acpi_debug_print(ACPI_LV_FUNCTIONS, - line_number, function_name, module_name, - component_id, "%s %s\n", acpi_gbl_fn_exit_str, - acpi_format_exception(status)); - } else { - acpi_debug_print(ACPI_LV_FUNCTIONS, - line_number, function_name, module_name, - component_id, "%s ****Exception****: %s\n", - acpi_gbl_fn_exit_str, - acpi_format_exception(status)); - } - - acpi_gbl_nesting_level--; -} - -ACPI_EXPORT_SYMBOL(acpi_ut_status_exit) - -/******************************************************************************* - * - * FUNCTION: acpi_ut_value_exit - * - * PARAMETERS: line_number - Caller's line number - * function_name - Caller's procedure name - * module_name - Caller's module name - * component_id - Caller's component ID - * Value - Value to be printed with exit msg - * - * RETURN: None - * - * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is - * set in debug_level. Prints exit value also. - * - ******************************************************************************/ -void -acpi_ut_value_exit(u32 line_number, - const char *function_name, - const char *module_name, - u32 component_id, acpi_integer value) -{ - - acpi_debug_print(ACPI_LV_FUNCTIONS, - line_number, function_name, module_name, component_id, - "%s %8.8X%8.8X\n", acpi_gbl_fn_exit_str, - ACPI_FORMAT_UINT64(value)); - - acpi_gbl_nesting_level--; -} - -ACPI_EXPORT_SYMBOL(acpi_ut_value_exit) - -/******************************************************************************* - * - * FUNCTION: acpi_ut_ptr_exit - * - * PARAMETERS: line_number - Caller's line number - * function_name - Caller's procedure name - * module_name - Caller's module name - * component_id - Caller's component ID - * Ptr - Pointer to display - * - * RETURN: None - * - * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is - * set in debug_level. Prints exit value also. - * - ******************************************************************************/ -void -acpi_ut_ptr_exit(u32 line_number, - const char *function_name, - const char *module_name, u32 component_id, u8 *ptr) -{ - - acpi_debug_print(ACPI_LV_FUNCTIONS, - line_number, function_name, module_name, component_id, - "%s %p\n", acpi_gbl_fn_exit_str, ptr); - - acpi_gbl_nesting_level--; -} - -#endif - -/******************************************************************************* - * - * FUNCTION: acpi_ut_dump_buffer - * - * PARAMETERS: Buffer - Buffer to dump - * Count - Amount to dump, in bytes - * Display - BYTE, WORD, DWORD, or QWORD display - * component_iD - Caller's component ID - * - * RETURN: None - * - * DESCRIPTION: Generic dump buffer in both hex and ascii. - * - ******************************************************************************/ - -void acpi_ut_dump_buffer2(u8 * buffer, u32 count, u32 display) -{ - u32 i = 0; - u32 j; - u32 temp32; - u8 buf_char; - - if (!buffer) { - acpi_os_printf("Null Buffer Pointer in DumpBuffer!\n"); - return; - } - - if ((count < 4) || (count & 0x01)) { - display = DB_BYTE_DISPLAY; - } - - /* Nasty little dump buffer routine! */ - - while (i < count) { - - /* Print current offset */ - - acpi_os_printf("%6.4X: ", i); - - /* Print 16 hex chars */ - - for (j = 0; j < 16;) { - if (i + j >= count) { - - /* Dump fill spaces */ - - acpi_os_printf("%*s", ((display * 2) + 1), " "); - j += display; - continue; - } - - switch (display) { - case DB_BYTE_DISPLAY: - default: /* Default is BYTE display */ - - acpi_os_printf("%02X ", - buffer[(acpi_size) i + j]); - break; - - case DB_WORD_DISPLAY: - - ACPI_MOVE_16_TO_32(&temp32, - &buffer[(acpi_size) i + j]); - acpi_os_printf("%04X ", temp32); - break; - - case DB_DWORD_DISPLAY: - - ACPI_MOVE_32_TO_32(&temp32, - &buffer[(acpi_size) i + j]); - acpi_os_printf("%08X ", temp32); - break; - - case DB_QWORD_DISPLAY: - - ACPI_MOVE_32_TO_32(&temp32, - &buffer[(acpi_size) i + j]); - acpi_os_printf("%08X", temp32); - - ACPI_MOVE_32_TO_32(&temp32, - &buffer[(acpi_size) i + j + - 4]); - acpi_os_printf("%08X ", temp32); - break; - } - - j += display; - } - - /* - * Print the ASCII equivalent characters but watch out for the bad - * unprintable ones (printable chars are 0x20 through 0x7E) - */ - acpi_os_printf(" "); - for (j = 0; j < 16; j++) { - if (i + j >= count) { - acpi_os_printf("\n"); - return; - } - - buf_char = buffer[(acpi_size) i + j]; - if (ACPI_IS_PRINT(buf_char)) { - acpi_os_printf("%c", buf_char); - } else { - acpi_os_printf("."); - } - } - - /* Done with that line. */ - - acpi_os_printf("\n"); - i += 16; - } - - return; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_dump_buffer - * - * PARAMETERS: Buffer - Buffer to dump - * Count - Amount to dump, in bytes - * Display - BYTE, WORD, DWORD, or QWORD display - * component_iD - Caller's component ID - * - * RETURN: None - * - * DESCRIPTION: Generic dump buffer in both hex and ascii. - * - ******************************************************************************/ - -void acpi_ut_dump_buffer(u8 * buffer, u32 count, u32 display, u32 component_id) -{ - - /* Only dump the buffer if tracing is enabled */ - - if (!((ACPI_LV_TABLES & acpi_dbg_level) && - (component_id & acpi_dbg_layer))) { - return; - } - - acpi_ut_dump_buffer2(buffer, count, display); -} diff --git a/drivers/acpi/utilities/utdelete.c b/drivers/acpi/utilities/utdelete.c deleted file mode 100644 index 5b4e3b1a7523..000000000000 --- a/drivers/acpi/utilities/utdelete.c +++ /dev/null @@ -1,677 +0,0 @@ -/******************************************************************************* - * - * Module Name: utdelete - object deletion and reference count utilities - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_UTILITIES -ACPI_MODULE_NAME("utdelete") - -/* Local prototypes */ -static void acpi_ut_delete_internal_obj(union acpi_operand_object *object); - -static void -acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action); - -/******************************************************************************* - * - * FUNCTION: acpi_ut_delete_internal_obj - * - * PARAMETERS: Object - Object to be deleted - * - * RETURN: None - * - * DESCRIPTION: Low level object deletion, after reference counts have been - * updated (All reference counts, including sub-objects!) - * - ******************************************************************************/ - -static void acpi_ut_delete_internal_obj(union acpi_operand_object *object) -{ - void *obj_pointer = NULL; - union acpi_operand_object *handler_desc; - union acpi_operand_object *second_desc; - union acpi_operand_object *next_desc; - - ACPI_FUNCTION_TRACE_PTR(ut_delete_internal_obj, object); - - if (!object) { - return_VOID; - } - - /* - * Must delete or free any pointers within the object that are not - * actual ACPI objects (for example, a raw buffer pointer). - */ - switch (ACPI_GET_OBJECT_TYPE(object)) { - case ACPI_TYPE_STRING: - - ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, - "**** String %p, ptr %p\n", object, - object->string.pointer)); - - /* Free the actual string buffer */ - - if (!(object->common.flags & AOPOBJ_STATIC_POINTER)) { - - /* But only if it is NOT a pointer into an ACPI table */ - - obj_pointer = object->string.pointer; - } - break; - - case ACPI_TYPE_BUFFER: - - ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, - "**** Buffer %p, ptr %p\n", object, - object->buffer.pointer)); - - /* Free the actual buffer */ - - if (!(object->common.flags & AOPOBJ_STATIC_POINTER)) { - - /* But only if it is NOT a pointer into an ACPI table */ - - obj_pointer = object->buffer.pointer; - } - break; - - case ACPI_TYPE_PACKAGE: - - ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, - " **** Package of count %X\n", - object->package.count)); - - /* - * Elements of the package are not handled here, they are deleted - * separately - */ - - /* Free the (variable length) element pointer array */ - - obj_pointer = object->package.elements; - break; - - /* - * These objects have a possible list of notify handlers. - * Device object also may have a GPE block. - */ - case ACPI_TYPE_DEVICE: - - if (object->device.gpe_block) { - (void)acpi_ev_delete_gpe_block(object->device. - gpe_block); - } - - /*lint -fallthrough */ - - case ACPI_TYPE_PROCESSOR: - case ACPI_TYPE_THERMAL: - - /* Walk the notify handler list for this object */ - - handler_desc = object->common_notify.handler; - while (handler_desc) { - next_desc = handler_desc->address_space.next; - acpi_ut_remove_reference(handler_desc); - handler_desc = next_desc; - } - break; - - case ACPI_TYPE_MUTEX: - - ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, - "***** Mutex %p, OS Mutex %p\n", - object, object->mutex.os_mutex)); - - if (object == acpi_gbl_global_lock_mutex) { - - /* Global Lock has extra semaphore */ - - (void) - acpi_os_delete_semaphore - (acpi_gbl_global_lock_semaphore); - acpi_gbl_global_lock_semaphore = NULL; - - acpi_os_delete_mutex(object->mutex.os_mutex); - acpi_gbl_global_lock_mutex = NULL; - } else { - acpi_ex_unlink_mutex(object); - acpi_os_delete_mutex(object->mutex.os_mutex); - } - break; - - case ACPI_TYPE_EVENT: - - ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, - "***** Event %p, OS Semaphore %p\n", - object, object->event.os_semaphore)); - - (void)acpi_os_delete_semaphore(object->event.os_semaphore); - object->event.os_semaphore = NULL; - break; - - case ACPI_TYPE_METHOD: - - ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, - "***** Method %p\n", object)); - - /* Delete the method mutex if it exists */ - - if (object->method.mutex) { - acpi_os_delete_mutex(object->method.mutex->mutex. - os_mutex); - acpi_ut_delete_object_desc(object->method.mutex); - object->method.mutex = NULL; - } - break; - - case ACPI_TYPE_REGION: - - ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, - "***** Region %p\n", object)); - - second_desc = acpi_ns_get_secondary_object(object); - if (second_desc) { - /* - * Free the region_context if and only if the handler is one of the - * default handlers -- and therefore, we created the context object - * locally, it was not created by an external caller. - */ - handler_desc = object->region.handler; - if (handler_desc) { - if (handler_desc->address_space.handler_flags & - ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) { - - /* Deactivate region and free region context */ - - if (handler_desc->address_space.setup) { - (void)handler_desc-> - address_space.setup(object, - ACPI_REGION_DEACTIVATE, - handler_desc-> - address_space. - context, - &second_desc-> - extra. - region_context); - } - } - - acpi_ut_remove_reference(handler_desc); - } - - /* Now we can free the Extra object */ - - acpi_ut_delete_object_desc(second_desc); - } - break; - - case ACPI_TYPE_BUFFER_FIELD: - - ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, - "***** Buffer Field %p\n", object)); - - second_desc = acpi_ns_get_secondary_object(object); - if (second_desc) { - acpi_ut_delete_object_desc(second_desc); - } - break; - - case ACPI_TYPE_LOCAL_BANK_FIELD: - - ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, - "***** Bank Field %p\n", object)); - - second_desc = acpi_ns_get_secondary_object(object); - if (second_desc) { - acpi_ut_delete_object_desc(second_desc); - } - break; - - default: - break; - } - - /* Free any allocated memory (pointer within the object) found above */ - - if (obj_pointer) { - ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, - "Deleting Object Subptr %p\n", obj_pointer)); - ACPI_FREE(obj_pointer); - } - - /* Now the object can be safely deleted */ - - ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "Deleting Object %p [%s]\n", - object, acpi_ut_get_object_type_name(object))); - - acpi_ut_delete_object_desc(object); - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_delete_internal_object_list - * - * PARAMETERS: obj_list - Pointer to the list to be deleted - * - * RETURN: None - * - * DESCRIPTION: This function deletes an internal object list, including both - * simple objects and package objects - * - ******************************************************************************/ - -void acpi_ut_delete_internal_object_list(union acpi_operand_object **obj_list) -{ - union acpi_operand_object **internal_obj; - - ACPI_FUNCTION_TRACE(ut_delete_internal_object_list); - - /* Walk the null-terminated internal list */ - - for (internal_obj = obj_list; *internal_obj; internal_obj++) { - acpi_ut_remove_reference(*internal_obj); - } - - /* Free the combined parameter pointer list and object array */ - - ACPI_FREE(obj_list); - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_update_ref_count - * - * PARAMETERS: Object - Object whose ref count is to be updated - * Action - What to do - * - * RETURN: New ref count - * - * DESCRIPTION: Modify the ref count and return it. - * - ******************************************************************************/ - -static void -acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action) -{ - u16 count; - u16 new_count; - - ACPI_FUNCTION_NAME(ut_update_ref_count); - - if (!object) { - return; - } - - count = object->common.reference_count; - new_count = count; - - /* - * Perform the reference count action (increment, decrement, force delete) - */ - switch (action) { - case REF_INCREMENT: - - new_count++; - object->common.reference_count = new_count; - - ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, - "Obj %p Refs=%X, [Incremented]\n", - object, new_count)); - break; - - case REF_DECREMENT: - - if (count < 1) { - ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, - "Obj %p Refs=%X, can't decrement! (Set to 0)\n", - object, new_count)); - - new_count = 0; - } else { - new_count--; - - ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, - "Obj %p Refs=%X, [Decremented]\n", - object, new_count)); - } - - if (ACPI_GET_OBJECT_TYPE(object) == ACPI_TYPE_METHOD) { - ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, - "Method Obj %p Refs=%X, [Decremented]\n", - object, new_count)); - } - - object->common.reference_count = new_count; - if (new_count == 0) { - acpi_ut_delete_internal_obj(object); - } - break; - - case REF_FORCE_DELETE: - - ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, - "Obj %p Refs=%X, Force delete! (Set to 0)\n", - object, count)); - - new_count = 0; - object->common.reference_count = new_count; - acpi_ut_delete_internal_obj(object); - break; - - default: - - ACPI_ERROR((AE_INFO, "Unknown action (%X)", action)); - break; - } - - /* - * Sanity check the reference count, for debug purposes only. - * (A deleted object will have a huge reference count) - */ - if (count > ACPI_MAX_REFERENCE_COUNT) { - ACPI_WARNING((AE_INFO, - "Large Reference Count (%X) in object %p", count, - object)); - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_update_object_reference - * - * PARAMETERS: Object - Increment ref count for this object - * and all sub-objects - * Action - Either REF_INCREMENT or REF_DECREMENT or - * REF_FORCE_DELETE - * - * RETURN: Status - * - * DESCRIPTION: Increment the object reference count - * - * Object references are incremented when: - * 1) An object is attached to a Node (namespace object) - * 2) An object is copied (all subobjects must be incremented) - * - * Object references are decremented when: - * 1) An object is detached from an Node - * - ******************************************************************************/ - -acpi_status -acpi_ut_update_object_reference(union acpi_operand_object *object, u16 action) -{ - acpi_status status = AE_OK; - union acpi_generic_state *state_list = NULL; - union acpi_operand_object *next_object = NULL; - union acpi_generic_state *state; - u32 i; - - ACPI_FUNCTION_TRACE_PTR(ut_update_object_reference, object); - - while (object) { - - /* Make sure that this isn't a namespace handle */ - - if (ACPI_GET_DESCRIPTOR_TYPE(object) == ACPI_DESC_TYPE_NAMED) { - ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, - "Object %p is NS handle\n", object)); - return_ACPI_STATUS(AE_OK); - } - - /* - * All sub-objects must have their reference count incremented also. - * Different object types have different subobjects. - */ - switch (ACPI_GET_OBJECT_TYPE(object)) { - case ACPI_TYPE_DEVICE: - case ACPI_TYPE_PROCESSOR: - case ACPI_TYPE_POWER: - case ACPI_TYPE_THERMAL: - - /* Update the notify objects for these types (if present) */ - - acpi_ut_update_ref_count(object->common_notify. - system_notify, action); - acpi_ut_update_ref_count(object->common_notify. - device_notify, action); - break; - - case ACPI_TYPE_PACKAGE: - /* - * We must update all the sub-objects of the package, - * each of whom may have their own sub-objects. - */ - for (i = 0; i < object->package.count; i++) { - /* - * Push each element onto the stack for later processing. - * Note: There can be null elements within the package, - * these are simply ignored - */ - status = - acpi_ut_create_update_state_and_push - (object->package.elements[i], action, - &state_list); - if (ACPI_FAILURE(status)) { - goto error_exit; - } - } - break; - - case ACPI_TYPE_BUFFER_FIELD: - - next_object = object->buffer_field.buffer_obj; - break; - - case ACPI_TYPE_LOCAL_REGION_FIELD: - - next_object = object->field.region_obj; - break; - - case ACPI_TYPE_LOCAL_BANK_FIELD: - - next_object = object->bank_field.bank_obj; - status = - acpi_ut_create_update_state_and_push(object-> - bank_field. - region_obj, - action, - &state_list); - if (ACPI_FAILURE(status)) { - goto error_exit; - } - break; - - case ACPI_TYPE_LOCAL_INDEX_FIELD: - - next_object = object->index_field.index_obj; - status = - acpi_ut_create_update_state_and_push(object-> - index_field. - data_obj, - action, - &state_list); - if (ACPI_FAILURE(status)) { - goto error_exit; - } - break; - - case ACPI_TYPE_LOCAL_REFERENCE: - /* - * The target of an Index (a package, string, or buffer) or a named - * reference must track changes to the ref count of the index or - * target object. - */ - if ((object->reference.class == ACPI_REFCLASS_INDEX) || - (object->reference.class == ACPI_REFCLASS_NAME)) { - next_object = object->reference.object; - } - break; - - case ACPI_TYPE_REGION: - default: - break; /* No subobjects for all other types */ - } - - /* - * Now we can update the count in the main object. This can only - * happen after we update the sub-objects in case this causes the - * main object to be deleted. - */ - acpi_ut_update_ref_count(object, action); - object = NULL; - - /* Move on to the next object to be updated */ - - if (next_object) { - object = next_object; - next_object = NULL; - } else if (state_list) { - state = acpi_ut_pop_generic_state(&state_list); - object = state->update.object; - acpi_ut_delete_generic_state(state); - } - } - - return_ACPI_STATUS(AE_OK); - - error_exit: - - ACPI_EXCEPTION((AE_INFO, status, - "Could not update object reference count")); - - /* Free any stacked Update State objects */ - - while (state_list) { - state = acpi_ut_pop_generic_state(&state_list); - acpi_ut_delete_generic_state(state); - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_add_reference - * - * PARAMETERS: Object - Object whose reference count is to be - * incremented - * - * RETURN: None - * - * DESCRIPTION: Add one reference to an ACPI object - * - ******************************************************************************/ - -void acpi_ut_add_reference(union acpi_operand_object *object) -{ - - ACPI_FUNCTION_TRACE_PTR(ut_add_reference, object); - - /* Ensure that we have a valid object */ - - if (!acpi_ut_valid_internal_object(object)) { - return_VOID; - } - - ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, - "Obj %p Current Refs=%X [To Be Incremented]\n", - object, object->common.reference_count)); - - /* Increment the reference count */ - - (void)acpi_ut_update_object_reference(object, REF_INCREMENT); - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_remove_reference - * - * PARAMETERS: Object - Object whose ref count will be decremented - * - * RETURN: None - * - * DESCRIPTION: Decrement the reference count of an ACPI internal object - * - ******************************************************************************/ - -void acpi_ut_remove_reference(union acpi_operand_object *object) -{ - - ACPI_FUNCTION_TRACE_PTR(ut_remove_reference, object); - - /* - * Allow a NULL pointer to be passed in, just ignore it. This saves - * each caller from having to check. Also, ignore NS nodes. - * - */ - if (!object || - (ACPI_GET_DESCRIPTOR_TYPE(object) == ACPI_DESC_TYPE_NAMED)) { - return_VOID; - } - - /* Ensure that we have a valid object */ - - if (!acpi_ut_valid_internal_object(object)) { - return_VOID; - } - - ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, - "Obj %p Current Refs=%X [To Be Decremented]\n", - object, object->common.reference_count)); - - /* - * Decrement the reference count, and only actually delete the object - * if the reference count becomes 0. (Must also decrement the ref count - * of all subobjects!) - */ - (void)acpi_ut_update_object_reference(object, REF_DECREMENT); - return_VOID; -} diff --git a/drivers/acpi/utilities/uteval.c b/drivers/acpi/utilities/uteval.c deleted file mode 100644 index e1e438cd54a9..000000000000 --- a/drivers/acpi/utilities/uteval.c +++ /dev/null @@ -1,752 +0,0 @@ -/****************************************************************************** - * - * Module Name: uteval - Object evaluation - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include - -#define _COMPONENT ACPI_UTILITIES -ACPI_MODULE_NAME("uteval") - -/* Local prototypes */ -static void -acpi_ut_copy_id_string(char *destination, char *source, acpi_size max_length); - -static acpi_status -acpi_ut_translate_one_cid(union acpi_operand_object *obj_desc, - struct acpi_compatible_id *one_cid); - -/* - * Strings supported by the _OSI predefined (internal) method. - */ -static char *acpi_interfaces_supported[] = { - /* Operating System Vendor Strings */ - - "Windows 2000", /* Windows 2000 */ - "Windows 2001", /* Windows XP */ - "Windows 2001 SP1", /* Windows XP SP1 */ - "Windows 2001 SP2", /* Windows XP SP2 */ - "Windows 2001.1", /* Windows Server 2003 */ - "Windows 2001.1 SP1", /* Windows Server 2003 SP1 - Added 03/2006 */ - "Windows 2006", /* Windows Vista - Added 03/2006 */ - - /* Feature Group Strings */ - - "Extended Address Space Descriptor" - /* - * All "optional" feature group strings (features that are implemented - * by the host) should be implemented in the host version of - * acpi_os_validate_interface and should not be added here. - */ -}; - -/******************************************************************************* - * - * FUNCTION: acpi_ut_osi_implementation - * - * PARAMETERS: walk_state - Current walk state - * - * RETURN: Status - * - * DESCRIPTION: Implementation of the _OSI predefined control method - * - ******************************************************************************/ - -acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state) -{ - acpi_status status; - union acpi_operand_object *string_desc; - union acpi_operand_object *return_desc; - u32 i; - - ACPI_FUNCTION_TRACE(ut_osi_implementation); - - /* Validate the string input argument */ - - string_desc = walk_state->arguments[0].object; - if (!string_desc || (string_desc->common.type != ACPI_TYPE_STRING)) { - return_ACPI_STATUS(AE_TYPE); - } - - /* Create a return object */ - - return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); - if (!return_desc) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Default return value is SUPPORTED */ - - return_desc->integer.value = ACPI_UINT32_MAX; - walk_state->return_desc = return_desc; - - /* Compare input string to static table of supported interfaces */ - - for (i = 0; i < ACPI_ARRAY_LENGTH(acpi_interfaces_supported); i++) { - if (!ACPI_STRCMP - (string_desc->string.pointer, - acpi_interfaces_supported[i])) { - - /* The interface is supported */ - - return_ACPI_STATUS(AE_OK); - } - } - - /* - * Did not match the string in the static table, call the host OSL to - * check for a match with one of the optional strings (such as - * "Module Device", "3.0 Thermal Model", etc.) - */ - status = acpi_os_validate_interface(string_desc->string.pointer); - if (ACPI_SUCCESS(status)) { - - /* The interface is supported */ - - return_ACPI_STATUS(AE_OK); - } - - /* The interface is not supported */ - - return_desc->integer.value = 0; - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_osi_invalidate - * - * PARAMETERS: interface_string - * - * RETURN: Status - * - * DESCRIPTION: invalidate string in pre-defiend _OSI string list - * - ******************************************************************************/ - -acpi_status acpi_osi_invalidate(char *interface) -{ - int i; - - for (i = 0; i < ACPI_ARRAY_LENGTH(acpi_interfaces_supported); i++) { - if (!ACPI_STRCMP(interface, acpi_interfaces_supported[i])) { - *acpi_interfaces_supported[i] = '\0'; - return AE_OK; - } - } - return AE_NOT_FOUND; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_evaluate_object - * - * PARAMETERS: prefix_node - Starting node - * Path - Path to object from starting node - * expected_return_types - Bitmap of allowed return types - * return_desc - Where a return value is stored - * - * RETURN: Status - * - * DESCRIPTION: Evaluates a namespace object and verifies the type of the - * return object. Common code that simplifies accessing objects - * that have required return objects of fixed types. - * - * NOTE: Internal function, no parameter validation - * - ******************************************************************************/ - -acpi_status -acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node, - char *path, - u32 expected_return_btypes, - union acpi_operand_object **return_desc) -{ - struct acpi_evaluate_info *info; - acpi_status status; - u32 return_btype; - - ACPI_FUNCTION_TRACE(ut_evaluate_object); - - /* Allocate the evaluation information block */ - - info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info)); - if (!info) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - info->prefix_node = prefix_node; - info->pathname = path; - - /* Evaluate the object/method */ - - status = acpi_ns_evaluate(info); - if (ACPI_FAILURE(status)) { - if (status == AE_NOT_FOUND) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "[%4.4s.%s] was not found\n", - acpi_ut_get_node_name(prefix_node), - path)); - } else { - ACPI_ERROR_METHOD("Method execution failed", - prefix_node, path, status); - } - - goto cleanup; - } - - /* Did we get a return object? */ - - if (!info->return_object) { - if (expected_return_btypes) { - ACPI_ERROR_METHOD("No object was returned from", - prefix_node, path, AE_NOT_EXIST); - - status = AE_NOT_EXIST; - } - - goto cleanup; - } - - /* Map the return object type to the bitmapped type */ - - switch (ACPI_GET_OBJECT_TYPE(info->return_object)) { - case ACPI_TYPE_INTEGER: - return_btype = ACPI_BTYPE_INTEGER; - break; - - case ACPI_TYPE_BUFFER: - return_btype = ACPI_BTYPE_BUFFER; - break; - - case ACPI_TYPE_STRING: - return_btype = ACPI_BTYPE_STRING; - break; - - case ACPI_TYPE_PACKAGE: - return_btype = ACPI_BTYPE_PACKAGE; - break; - - default: - return_btype = 0; - break; - } - - if ((acpi_gbl_enable_interpreter_slack) && (!expected_return_btypes)) { - /* - * We received a return object, but one was not expected. This can - * happen frequently if the "implicit return" feature is enabled. - * Just delete the return object and return AE_OK. - */ - acpi_ut_remove_reference(info->return_object); - goto cleanup; - } - - /* Is the return object one of the expected types? */ - - if (!(expected_return_btypes & return_btype)) { - ACPI_ERROR_METHOD("Return object type is incorrect", - prefix_node, path, AE_TYPE); - - ACPI_ERROR((AE_INFO, - "Type returned from %s was incorrect: %s, expected Btypes: %X", - path, - acpi_ut_get_object_type_name(info->return_object), - expected_return_btypes)); - - /* On error exit, we must delete the return object */ - - acpi_ut_remove_reference(info->return_object); - status = AE_TYPE; - goto cleanup; - } - - /* Object type is OK, return it */ - - *return_desc = info->return_object; - - cleanup: - ACPI_FREE(info); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_evaluate_numeric_object - * - * PARAMETERS: object_name - Object name to be evaluated - * device_node - Node for the device - * Address - Where the value is returned - * - * RETURN: Status - * - * DESCRIPTION: Evaluates a numeric namespace object for a selected device - * and stores result in *Address. - * - * NOTE: Internal function, no parameter validation - * - ******************************************************************************/ - -acpi_status -acpi_ut_evaluate_numeric_object(char *object_name, - struct acpi_namespace_node *device_node, - acpi_integer * address) -{ - union acpi_operand_object *obj_desc; - acpi_status status; - - ACPI_FUNCTION_TRACE(ut_evaluate_numeric_object); - - status = acpi_ut_evaluate_object(device_node, object_name, - ACPI_BTYPE_INTEGER, &obj_desc); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Get the returned Integer */ - - *address = obj_desc->integer.value; - - /* On exit, we must delete the return object */ - - acpi_ut_remove_reference(obj_desc); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_copy_id_string - * - * PARAMETERS: Destination - Where to copy the string - * Source - Source string - * max_length - Length of the destination buffer - * - * RETURN: None - * - * DESCRIPTION: Copies an ID string for the _HID, _CID, and _UID methods. - * Performs removal of a leading asterisk if present -- workaround - * for a known issue on a bunch of machines. - * - ******************************************************************************/ - -static void -acpi_ut_copy_id_string(char *destination, char *source, acpi_size max_length) -{ - - /* - * Workaround for ID strings that have a leading asterisk. This construct - * is not allowed by the ACPI specification (ID strings must be - * alphanumeric), but enough existing machines have this embedded in their - * ID strings that the following code is useful. - */ - if (*source == '*') { - source++; - } - - /* Do the actual copy */ - - ACPI_STRNCPY(destination, source, max_length); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_execute_HID - * - * PARAMETERS: device_node - Node for the device - * Hid - Where the HID is returned - * - * RETURN: Status - * - * DESCRIPTION: Executes the _HID control method that returns the hardware - * ID of the device. - * - * NOTE: Internal function, no parameter validation - * - ******************************************************************************/ - -acpi_status -acpi_ut_execute_HID(struct acpi_namespace_node *device_node, - struct acpica_device_id *hid) -{ - union acpi_operand_object *obj_desc; - acpi_status status; - - ACPI_FUNCTION_TRACE(ut_execute_HID); - - status = acpi_ut_evaluate_object(device_node, METHOD_NAME__HID, - ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING, - &obj_desc); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) { - - /* Convert the Numeric HID to string */ - - acpi_ex_eisa_id_to_string((u32) obj_desc->integer.value, - hid->value); - } else { - /* Copy the String HID from the returned object */ - - acpi_ut_copy_id_string(hid->value, obj_desc->string.pointer, - sizeof(hid->value)); - } - - /* On exit, we must delete the return object */ - - acpi_ut_remove_reference(obj_desc); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_translate_one_cid - * - * PARAMETERS: obj_desc - _CID object, must be integer or string - * one_cid - Where the CID string is returned - * - * RETURN: Status - * - * DESCRIPTION: Return a numeric or string _CID value as a string. - * (Compatible ID) - * - * NOTE: Assumes a maximum _CID string length of - * ACPI_MAX_CID_LENGTH. - * - ******************************************************************************/ - -static acpi_status -acpi_ut_translate_one_cid(union acpi_operand_object *obj_desc, - struct acpi_compatible_id *one_cid) -{ - - switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { - case ACPI_TYPE_INTEGER: - - /* Convert the Numeric CID to string */ - - acpi_ex_eisa_id_to_string((u32) obj_desc->integer.value, - one_cid->value); - return (AE_OK); - - case ACPI_TYPE_STRING: - - if (obj_desc->string.length > ACPI_MAX_CID_LENGTH) { - return (AE_AML_STRING_LIMIT); - } - - /* Copy the String CID from the returned object */ - - acpi_ut_copy_id_string(one_cid->value, obj_desc->string.pointer, - ACPI_MAX_CID_LENGTH); - return (AE_OK); - - default: - - return (AE_TYPE); - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_execute_CID - * - * PARAMETERS: device_node - Node for the device - * return_cid_list - Where the CID list is returned - * - * RETURN: Status - * - * DESCRIPTION: Executes the _CID control method that returns one or more - * compatible hardware IDs for the device. - * - * NOTE: Internal function, no parameter validation - * - ******************************************************************************/ - -acpi_status -acpi_ut_execute_CID(struct acpi_namespace_node * device_node, - struct acpi_compatible_id_list ** return_cid_list) -{ - union acpi_operand_object *obj_desc; - acpi_status status; - u32 count; - u32 size; - struct acpi_compatible_id_list *cid_list; - u32 i; - - ACPI_FUNCTION_TRACE(ut_execute_CID); - - /* Evaluate the _CID method for this device */ - - status = acpi_ut_evaluate_object(device_node, METHOD_NAME__CID, - ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING - | ACPI_BTYPE_PACKAGE, &obj_desc); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Get the number of _CIDs returned */ - - count = 1; - if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_PACKAGE) { - count = obj_desc->package.count; - } - - /* Allocate a worst-case buffer for the _CIDs */ - - size = (((count - 1) * sizeof(struct acpi_compatible_id)) + - sizeof(struct acpi_compatible_id_list)); - - cid_list = ACPI_ALLOCATE_ZEROED((acpi_size) size); - if (!cid_list) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Init CID list */ - - cid_list->count = count; - cid_list->size = size; - - /* - * A _CID can return either a single compatible ID or a package of - * compatible IDs. Each compatible ID can be one of the following: - * 1) Integer (32 bit compressed EISA ID) or - * 2) String (PCI ID format, e.g. "PCI\VEN_vvvv&DEV_dddd&SUBSYS_ssssssss") - */ - - /* The _CID object can be either a single CID or a package (list) of CIDs */ - - if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_PACKAGE) { - - /* Translate each package element */ - - for (i = 0; i < count; i++) { - status = - acpi_ut_translate_one_cid(obj_desc->package. - elements[i], - &cid_list->id[i]); - if (ACPI_FAILURE(status)) { - break; - } - } - } else { - /* Only one CID, translate to a string */ - - status = acpi_ut_translate_one_cid(obj_desc, cid_list->id); - } - - /* Cleanup on error */ - - if (ACPI_FAILURE(status)) { - ACPI_FREE(cid_list); - } else { - *return_cid_list = cid_list; - } - - /* On exit, we must delete the _CID return object */ - - acpi_ut_remove_reference(obj_desc); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_execute_UID - * - * PARAMETERS: device_node - Node for the device - * Uid - Where the UID is returned - * - * RETURN: Status - * - * DESCRIPTION: Executes the _UID control method that returns the hardware - * ID of the device. - * - * NOTE: Internal function, no parameter validation - * - ******************************************************************************/ - -acpi_status -acpi_ut_execute_UID(struct acpi_namespace_node *device_node, - struct acpica_device_id *uid) -{ - union acpi_operand_object *obj_desc; - acpi_status status; - - ACPI_FUNCTION_TRACE(ut_execute_UID); - - status = acpi_ut_evaluate_object(device_node, METHOD_NAME__UID, - ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING, - &obj_desc); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) { - - /* Convert the Numeric UID to string */ - - acpi_ex_unsigned_integer_to_string(obj_desc->integer.value, - uid->value); - } else { - /* Copy the String UID from the returned object */ - - acpi_ut_copy_id_string(uid->value, obj_desc->string.pointer, - sizeof(uid->value)); - } - - /* On exit, we must delete the return object */ - - acpi_ut_remove_reference(obj_desc); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_execute_STA - * - * PARAMETERS: device_node - Node for the device - * Flags - Where the status flags are returned - * - * RETURN: Status - * - * DESCRIPTION: Executes _STA for selected device and stores results in - * *Flags. - * - * NOTE: Internal function, no parameter validation - * - ******************************************************************************/ - -acpi_status -acpi_ut_execute_STA(struct acpi_namespace_node *device_node, u32 * flags) -{ - union acpi_operand_object *obj_desc; - acpi_status status; - - ACPI_FUNCTION_TRACE(ut_execute_STA); - - status = acpi_ut_evaluate_object(device_node, METHOD_NAME__STA, - ACPI_BTYPE_INTEGER, &obj_desc); - if (ACPI_FAILURE(status)) { - if (AE_NOT_FOUND == status) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "_STA on %4.4s was not found, assuming device is present\n", - acpi_ut_get_node_name(device_node))); - - *flags = ACPI_UINT32_MAX; - status = AE_OK; - } - - return_ACPI_STATUS(status); - } - - /* Extract the status flags */ - - *flags = (u32) obj_desc->integer.value; - - /* On exit, we must delete the return object */ - - acpi_ut_remove_reference(obj_desc); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_execute_Sxds - * - * PARAMETERS: device_node - Node for the device - * Flags - Where the status flags are returned - * - * RETURN: Status - * - * DESCRIPTION: Executes _STA for selected device and stores results in - * *Flags. - * - * NOTE: Internal function, no parameter validation - * - ******************************************************************************/ - -acpi_status -acpi_ut_execute_sxds(struct acpi_namespace_node *device_node, u8 * highest) -{ - union acpi_operand_object *obj_desc; - acpi_status status; - u32 i; - - ACPI_FUNCTION_TRACE(ut_execute_sxds); - - for (i = 0; i < 4; i++) { - highest[i] = 0xFF; - status = acpi_ut_evaluate_object(device_node, - ACPI_CAST_PTR(char, - acpi_gbl_highest_dstate_names - [i]), - ACPI_BTYPE_INTEGER, &obj_desc); - if (ACPI_FAILURE(status)) { - if (status != AE_NOT_FOUND) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "%s on Device %4.4s, %s\n", - ACPI_CAST_PTR(char, - acpi_gbl_highest_dstate_names - [i]), - acpi_ut_get_node_name - (device_node), - acpi_format_exception - (status))); - - return_ACPI_STATUS(status); - } - } else { - /* Extract the Dstate value */ - - highest[i] = (u8) obj_desc->integer.value; - - /* Delete the return object */ - - acpi_ut_remove_reference(obj_desc); - } - } - - return_ACPI_STATUS(AE_OK); -} diff --git a/drivers/acpi/utilities/utglobal.c b/drivers/acpi/utilities/utglobal.c deleted file mode 100644 index 3e28d8c4045d..000000000000 --- a/drivers/acpi/utilities/utglobal.c +++ /dev/null @@ -1,823 +0,0 @@ -/****************************************************************************** - * - * Module Name: utglobal - Global variables for the ACPI subsystem - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#define DEFINE_ACPI_GLOBALS - -#include -#include -#include - -#define _COMPONENT ACPI_UTILITIES -ACPI_MODULE_NAME("utglobal") - -/******************************************************************************* - * - * Static global variable initialization. - * - ******************************************************************************/ -/* - * We want the debug switches statically initialized so they - * are already set when the debugger is entered. - */ -/* Debug switch - level and trace mask */ -u32 acpi_dbg_level = ACPI_DEBUG_DEFAULT; - -/* Debug switch - layer (component) mask */ - -u32 acpi_dbg_layer = 0; -u32 acpi_gbl_nesting_level = 0; - -/* Debugger globals */ - -u8 acpi_gbl_db_terminate_threads = FALSE; -u8 acpi_gbl_abort_method = FALSE; -u8 acpi_gbl_method_executing = FALSE; - -/* System flags */ - -u32 acpi_gbl_startup_flags = 0; - -/* System starts uninitialized */ - -u8 acpi_gbl_shutdown = TRUE; - -const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT] = { - "\\_S0_", - "\\_S1_", - "\\_S2_", - "\\_S3_", - "\\_S4_", - "\\_S5_" -}; - -const char *acpi_gbl_highest_dstate_names[4] = { - "_S1D", - "_S2D", - "_S3D", - "_S4D" -}; - -/******************************************************************************* - * - * FUNCTION: acpi_format_exception - * - * PARAMETERS: Status - The acpi_status code to be formatted - * - * RETURN: A string containing the exception text. A valid pointer is - * always returned. - * - * DESCRIPTION: This function translates an ACPI exception into an ASCII string - * It is here instead of utxface.c so it is always present. - * - ******************************************************************************/ - -const char *acpi_format_exception(acpi_status status) -{ - const char *exception = NULL; - - ACPI_FUNCTION_ENTRY(); - - exception = acpi_ut_validate_exception(status); - if (!exception) { - - /* Exception code was not recognized */ - - ACPI_ERROR((AE_INFO, - "Unknown exception code: 0x%8.8X", status)); - - exception = "UNKNOWN_STATUS_CODE"; - dump_stack(); - } - - return (ACPI_CAST_PTR(const char, exception)); -} - -ACPI_EXPORT_SYMBOL(acpi_format_exception) - -/******************************************************************************* - * - * Namespace globals - * - ******************************************************************************/ -/* - * Predefined ACPI Names (Built-in to the Interpreter) - * - * NOTES: - * 1) _SB_ is defined to be a device to allow \_SB_._INI to be run - * during the initialization sequence. - * 2) _TZ_ is defined to be a thermal zone in order to allow ASL code to - * perform a Notify() operation on it. - */ -const struct acpi_predefined_names acpi_gbl_pre_defined_names[] = { - {"_GPE", ACPI_TYPE_LOCAL_SCOPE, NULL}, - {"_PR_", ACPI_TYPE_LOCAL_SCOPE, NULL}, - {"_SB_", ACPI_TYPE_DEVICE, NULL}, - {"_SI_", ACPI_TYPE_LOCAL_SCOPE, NULL}, - {"_TZ_", ACPI_TYPE_THERMAL, NULL}, - {"_REV", ACPI_TYPE_INTEGER, (char *)ACPI_CA_SUPPORT_LEVEL}, - {"_OS_", ACPI_TYPE_STRING, ACPI_OS_NAME}, - {"_GL_", ACPI_TYPE_MUTEX, (char *)1}, - -#if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY) - {"_OSI", ACPI_TYPE_METHOD, (char *)1}, -#endif - - /* Table terminator */ - - {NULL, ACPI_TYPE_ANY, NULL} -}; - -/* - * Properties of the ACPI Object Types, both internal and external. - * The table is indexed by values of acpi_object_type - */ -const u8 acpi_gbl_ns_properties[] = { - ACPI_NS_NORMAL, /* 00 Any */ - ACPI_NS_NORMAL, /* 01 Number */ - ACPI_NS_NORMAL, /* 02 String */ - ACPI_NS_NORMAL, /* 03 Buffer */ - ACPI_NS_NORMAL, /* 04 Package */ - ACPI_NS_NORMAL, /* 05 field_unit */ - ACPI_NS_NEWSCOPE, /* 06 Device */ - ACPI_NS_NORMAL, /* 07 Event */ - ACPI_NS_NEWSCOPE, /* 08 Method */ - ACPI_NS_NORMAL, /* 09 Mutex */ - ACPI_NS_NORMAL, /* 10 Region */ - ACPI_NS_NEWSCOPE, /* 11 Power */ - ACPI_NS_NEWSCOPE, /* 12 Processor */ - ACPI_NS_NEWSCOPE, /* 13 Thermal */ - ACPI_NS_NORMAL, /* 14 buffer_field */ - ACPI_NS_NORMAL, /* 15 ddb_handle */ - ACPI_NS_NORMAL, /* 16 Debug Object */ - ACPI_NS_NORMAL, /* 17 def_field */ - ACPI_NS_NORMAL, /* 18 bank_field */ - ACPI_NS_NORMAL, /* 19 index_field */ - ACPI_NS_NORMAL, /* 20 Reference */ - ACPI_NS_NORMAL, /* 21 Alias */ - ACPI_NS_NORMAL, /* 22 method_alias */ - ACPI_NS_NORMAL, /* 23 Notify */ - ACPI_NS_NORMAL, /* 24 Address Handler */ - ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL, /* 25 Resource Desc */ - ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL, /* 26 Resource Field */ - ACPI_NS_NEWSCOPE, /* 27 Scope */ - ACPI_NS_NORMAL, /* 28 Extra */ - ACPI_NS_NORMAL, /* 29 Data */ - ACPI_NS_NORMAL /* 30 Invalid */ -}; - -/* Hex to ASCII conversion table */ - -static const char acpi_gbl_hex_to_ascii[] = { - '0', '1', '2', '3', '4', '5', '6', '7', - '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' -}; - -/******************************************************************************* - * - * FUNCTION: acpi_ut_hex_to_ascii_char - * - * PARAMETERS: Integer - Contains the hex digit - * Position - bit position of the digit within the - * integer (multiple of 4) - * - * RETURN: The converted Ascii character - * - * DESCRIPTION: Convert a hex digit to an Ascii character - * - ******************************************************************************/ - -char acpi_ut_hex_to_ascii_char(acpi_integer integer, u32 position) -{ - - return (acpi_gbl_hex_to_ascii[(integer >> position) & 0xF]); -} - -/****************************************************************************** - * - * Event and Hardware globals - * - ******************************************************************************/ - -struct acpi_bit_register_info acpi_gbl_bit_register_info[ACPI_NUM_BITREG] = { - /* Name Parent Register Register Bit Position Register Bit Mask */ - - /* ACPI_BITREG_TIMER_STATUS */ {ACPI_REGISTER_PM1_STATUS, - ACPI_BITPOSITION_TIMER_STATUS, - ACPI_BITMASK_TIMER_STATUS}, - /* ACPI_BITREG_BUS_MASTER_STATUS */ {ACPI_REGISTER_PM1_STATUS, - ACPI_BITPOSITION_BUS_MASTER_STATUS, - ACPI_BITMASK_BUS_MASTER_STATUS}, - /* ACPI_BITREG_GLOBAL_LOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS, - ACPI_BITPOSITION_GLOBAL_LOCK_STATUS, - ACPI_BITMASK_GLOBAL_LOCK_STATUS}, - /* ACPI_BITREG_POWER_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS, - ACPI_BITPOSITION_POWER_BUTTON_STATUS, - ACPI_BITMASK_POWER_BUTTON_STATUS}, - /* ACPI_BITREG_SLEEP_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS, - ACPI_BITPOSITION_SLEEP_BUTTON_STATUS, - ACPI_BITMASK_SLEEP_BUTTON_STATUS}, - /* ACPI_BITREG_RT_CLOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS, - ACPI_BITPOSITION_RT_CLOCK_STATUS, - ACPI_BITMASK_RT_CLOCK_STATUS}, - /* ACPI_BITREG_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS, - ACPI_BITPOSITION_WAKE_STATUS, - ACPI_BITMASK_WAKE_STATUS}, - /* ACPI_BITREG_PCIEXP_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS, - ACPI_BITPOSITION_PCIEXP_WAKE_STATUS, - ACPI_BITMASK_PCIEXP_WAKE_STATUS}, - - /* ACPI_BITREG_TIMER_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, - ACPI_BITPOSITION_TIMER_ENABLE, - ACPI_BITMASK_TIMER_ENABLE}, - /* ACPI_BITREG_GLOBAL_LOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, - ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE, - ACPI_BITMASK_GLOBAL_LOCK_ENABLE}, - /* ACPI_BITREG_POWER_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, - ACPI_BITPOSITION_POWER_BUTTON_ENABLE, - ACPI_BITMASK_POWER_BUTTON_ENABLE}, - /* ACPI_BITREG_SLEEP_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, - ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE, - ACPI_BITMASK_SLEEP_BUTTON_ENABLE}, - /* ACPI_BITREG_RT_CLOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, - ACPI_BITPOSITION_RT_CLOCK_ENABLE, - ACPI_BITMASK_RT_CLOCK_ENABLE}, - /* ACPI_BITREG_PCIEXP_WAKE_DISABLE */ {ACPI_REGISTER_PM1_ENABLE, - ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE, - ACPI_BITMASK_PCIEXP_WAKE_DISABLE}, - - /* ACPI_BITREG_SCI_ENABLE */ {ACPI_REGISTER_PM1_CONTROL, - ACPI_BITPOSITION_SCI_ENABLE, - ACPI_BITMASK_SCI_ENABLE}, - /* ACPI_BITREG_BUS_MASTER_RLD */ {ACPI_REGISTER_PM1_CONTROL, - ACPI_BITPOSITION_BUS_MASTER_RLD, - ACPI_BITMASK_BUS_MASTER_RLD}, - /* ACPI_BITREG_GLOBAL_LOCK_RELEASE */ {ACPI_REGISTER_PM1_CONTROL, - ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE, - ACPI_BITMASK_GLOBAL_LOCK_RELEASE}, - /* ACPI_BITREG_SLEEP_TYPE_A */ {ACPI_REGISTER_PM1_CONTROL, - ACPI_BITPOSITION_SLEEP_TYPE_X, - ACPI_BITMASK_SLEEP_TYPE_X}, - /* ACPI_BITREG_SLEEP_TYPE_B */ {ACPI_REGISTER_PM1_CONTROL, - ACPI_BITPOSITION_SLEEP_TYPE_X, - ACPI_BITMASK_SLEEP_TYPE_X}, - /* ACPI_BITREG_SLEEP_ENABLE */ {ACPI_REGISTER_PM1_CONTROL, - ACPI_BITPOSITION_SLEEP_ENABLE, - ACPI_BITMASK_SLEEP_ENABLE}, - - /* ACPI_BITREG_ARB_DIS */ {ACPI_REGISTER_PM2_CONTROL, - ACPI_BITPOSITION_ARB_DISABLE, - ACPI_BITMASK_ARB_DISABLE} -}; - -struct acpi_fixed_event_info acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS] = { - /* ACPI_EVENT_PMTIMER */ {ACPI_BITREG_TIMER_STATUS, - ACPI_BITREG_TIMER_ENABLE, - ACPI_BITMASK_TIMER_STATUS, - ACPI_BITMASK_TIMER_ENABLE}, - /* ACPI_EVENT_GLOBAL */ {ACPI_BITREG_GLOBAL_LOCK_STATUS, - ACPI_BITREG_GLOBAL_LOCK_ENABLE, - ACPI_BITMASK_GLOBAL_LOCK_STATUS, - ACPI_BITMASK_GLOBAL_LOCK_ENABLE}, - /* ACPI_EVENT_POWER_BUTTON */ {ACPI_BITREG_POWER_BUTTON_STATUS, - ACPI_BITREG_POWER_BUTTON_ENABLE, - ACPI_BITMASK_POWER_BUTTON_STATUS, - ACPI_BITMASK_POWER_BUTTON_ENABLE}, - /* ACPI_EVENT_SLEEP_BUTTON */ {ACPI_BITREG_SLEEP_BUTTON_STATUS, - ACPI_BITREG_SLEEP_BUTTON_ENABLE, - ACPI_BITMASK_SLEEP_BUTTON_STATUS, - ACPI_BITMASK_SLEEP_BUTTON_ENABLE}, - /* ACPI_EVENT_RTC */ {ACPI_BITREG_RT_CLOCK_STATUS, - ACPI_BITREG_RT_CLOCK_ENABLE, - ACPI_BITMASK_RT_CLOCK_STATUS, - ACPI_BITMASK_RT_CLOCK_ENABLE}, -}; - -/******************************************************************************* - * - * FUNCTION: acpi_ut_get_region_name - * - * PARAMETERS: None. - * - * RETURN: Status - * - * DESCRIPTION: Translate a Space ID into a name string (Debug only) - * - ******************************************************************************/ - -/* Region type decoding */ - -const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS] = { - "SystemMemory", - "SystemIO", - "PCI_Config", - "EmbeddedControl", - "SMBus", - "SystemCMOS", - "PCIBARTarget", - "DataTable" -}; - -char *acpi_ut_get_region_name(u8 space_id) -{ - - if (space_id >= ACPI_USER_REGION_BEGIN) { - return ("UserDefinedRegion"); - } else if (space_id >= ACPI_NUM_PREDEFINED_REGIONS) { - return ("InvalidSpaceId"); - } - - return (ACPI_CAST_PTR(char, acpi_gbl_region_types[space_id])); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_get_event_name - * - * PARAMETERS: None. - * - * RETURN: Status - * - * DESCRIPTION: Translate a Event ID into a name string (Debug only) - * - ******************************************************************************/ - -/* Event type decoding */ - -static const char *acpi_gbl_event_types[ACPI_NUM_FIXED_EVENTS] = { - "PM_Timer", - "GlobalLock", - "PowerButton", - "SleepButton", - "RealTimeClock", -}; - -char *acpi_ut_get_event_name(u32 event_id) -{ - - if (event_id > ACPI_EVENT_MAX) { - return ("InvalidEventID"); - } - - return (ACPI_CAST_PTR(char, acpi_gbl_event_types[event_id])); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_get_type_name - * - * PARAMETERS: None. - * - * RETURN: Status - * - * DESCRIPTION: Translate a Type ID into a name string (Debug only) - * - ******************************************************************************/ - -/* - * Elements of acpi_gbl_ns_type_names below must match - * one-to-one with values of acpi_object_type - * - * The type ACPI_TYPE_ANY (Untyped) is used as a "don't care" when searching; - * when stored in a table it really means that we have thus far seen no - * evidence to indicate what type is actually going to be stored for this entry. - */ -static const char acpi_gbl_bad_type[] = "UNDEFINED"; - -/* Printable names of the ACPI object types */ - -static const char *acpi_gbl_ns_type_names[] = { - /* 00 */ "Untyped", - /* 01 */ "Integer", - /* 02 */ "String", - /* 03 */ "Buffer", - /* 04 */ "Package", - /* 05 */ "FieldUnit", - /* 06 */ "Device", - /* 07 */ "Event", - /* 08 */ "Method", - /* 09 */ "Mutex", - /* 10 */ "Region", - /* 11 */ "Power", - /* 12 */ "Processor", - /* 13 */ "Thermal", - /* 14 */ "BufferField", - /* 15 */ "DdbHandle", - /* 16 */ "DebugObject", - /* 17 */ "RegionField", - /* 18 */ "BankField", - /* 19 */ "IndexField", - /* 20 */ "Reference", - /* 21 */ "Alias", - /* 22 */ "MethodAlias", - /* 23 */ "Notify", - /* 24 */ "AddrHandler", - /* 25 */ "ResourceDesc", - /* 26 */ "ResourceFld", - /* 27 */ "Scope", - /* 28 */ "Extra", - /* 29 */ "Data", - /* 30 */ "Invalid" -}; - -char *acpi_ut_get_type_name(acpi_object_type type) -{ - - if (type > ACPI_TYPE_INVALID) { - return (ACPI_CAST_PTR(char, acpi_gbl_bad_type)); - } - - return (ACPI_CAST_PTR(char, acpi_gbl_ns_type_names[type])); -} - -char *acpi_ut_get_object_type_name(union acpi_operand_object *obj_desc) -{ - - if (!obj_desc) { - return ("[NULL Object Descriptor]"); - } - - return (acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE(obj_desc))); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_get_node_name - * - * PARAMETERS: Object - A namespace node - * - * RETURN: Pointer to a string - * - * DESCRIPTION: Validate the node and return the node's ACPI name. - * - ******************************************************************************/ - -char *acpi_ut_get_node_name(void *object) -{ - struct acpi_namespace_node *node = (struct acpi_namespace_node *)object; - - /* Must return a string of exactly 4 characters == ACPI_NAME_SIZE */ - - if (!object) { - return ("NULL"); - } - - /* Check for Root node */ - - if ((object == ACPI_ROOT_OBJECT) || (object == acpi_gbl_root_node)) { - return ("\"\\\" "); - } - - /* Descriptor must be a namespace node */ - - if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) { - return ("####"); - } - - /* Name must be a valid ACPI name */ - - if (!acpi_ut_valid_acpi_name(node->name.integer)) { - node->name.integer = acpi_ut_repair_name(node->name.ascii); - } - - /* Return the name */ - - return (node->name.ascii); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_get_descriptor_name - * - * PARAMETERS: Object - An ACPI object - * - * RETURN: Pointer to a string - * - * DESCRIPTION: Validate object and return the descriptor type - * - ******************************************************************************/ - -/* Printable names of object descriptor types */ - -static const char *acpi_gbl_desc_type_names[] = { - /* 00 */ "Invalid", - /* 01 */ "Cached", - /* 02 */ "State-Generic", - /* 03 */ "State-Update", - /* 04 */ "State-Package", - /* 05 */ "State-Control", - /* 06 */ "State-RootParseScope", - /* 07 */ "State-ParseScope", - /* 08 */ "State-WalkScope", - /* 09 */ "State-Result", - /* 10 */ "State-Notify", - /* 11 */ "State-Thread", - /* 12 */ "Walk", - /* 13 */ "Parser", - /* 14 */ "Operand", - /* 15 */ "Node" -}; - -char *acpi_ut_get_descriptor_name(void *object) -{ - - if (!object) { - return ("NULL OBJECT"); - } - - if (ACPI_GET_DESCRIPTOR_TYPE(object) > ACPI_DESC_TYPE_MAX) { - return (ACPI_CAST_PTR(char, acpi_gbl_bad_type)); - } - - return (ACPI_CAST_PTR(char, - acpi_gbl_desc_type_names[ACPI_GET_DESCRIPTOR_TYPE - (object)])); - -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_get_reference_name - * - * PARAMETERS: Object - An ACPI reference object - * - * RETURN: Pointer to a string - * - * DESCRIPTION: Decode a reference object sub-type to a string. - * - ******************************************************************************/ - -/* Printable names of reference object sub-types */ - -static const char *acpi_gbl_ref_class_names[] = { - /* 00 */ "Local", - /* 01 */ "Argument", - /* 02 */ "RefOf", - /* 03 */ "Index", - /* 04 */ "DdbHandle", - /* 05 */ "Named Object", - /* 06 */ "Debug" -}; - -const char *acpi_ut_get_reference_name(union acpi_operand_object *object) -{ - if (!object) - return "NULL Object"; - - if (ACPI_GET_DESCRIPTOR_TYPE(object) != ACPI_DESC_TYPE_OPERAND) - return "Not an Operand object"; - - if (object->common.type != ACPI_TYPE_LOCAL_REFERENCE) - return "Not a Reference object"; - - if (object->reference.class > ACPI_REFCLASS_MAX) - return "Unknown Reference class"; - - return acpi_gbl_ref_class_names[object->reference.class]; -} - -#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) -/* - * Strings and procedures used for debug only - */ - -/******************************************************************************* - * - * FUNCTION: acpi_ut_get_mutex_name - * - * PARAMETERS: mutex_id - The predefined ID for this mutex. - * - * RETURN: String containing the name of the mutex. Always returns a valid - * pointer. - * - * DESCRIPTION: Translate a mutex ID into a name string (Debug only) - * - ******************************************************************************/ - -char *acpi_ut_get_mutex_name(u32 mutex_id) -{ - - if (mutex_id > ACPI_MAX_MUTEX) { - return ("Invalid Mutex ID"); - } - - return (acpi_gbl_mutex_names[mutex_id]); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_get_notify_name - * - * PARAMETERS: notify_value - Value from the Notify() request - * - * RETURN: String corresponding to the Notify Value. - * - * DESCRIPTION: Translate a Notify Value to a notify namestring. - * - ******************************************************************************/ - -/* Names for Notify() values, used for debug output */ - -static const char *acpi_gbl_notify_value_names[] = { - "Bus Check", - "Device Check", - "Device Wake", - "Eject Request", - "Device Check Light", - "Frequency Mismatch", - "Bus Mode Mismatch", - "Power Fault", - "Capabilities Check", - "Device PLD Check", - "Reserved", - "System Locality Update" -}; - -const char *acpi_ut_get_notify_name(u32 notify_value) -{ - - if (notify_value <= ACPI_NOTIFY_MAX) { - return (acpi_gbl_notify_value_names[notify_value]); - } else if (notify_value <= ACPI_MAX_SYS_NOTIFY) { - return ("Reserved"); - } else { /* Greater or equal to 0x80 */ - - return ("**Device Specific**"); - } -} -#endif - -/******************************************************************************* - * - * FUNCTION: acpi_ut_valid_object_type - * - * PARAMETERS: Type - Object type to be validated - * - * RETURN: TRUE if valid object type, FALSE otherwise - * - * DESCRIPTION: Validate an object type - * - ******************************************************************************/ - -u8 acpi_ut_valid_object_type(acpi_object_type type) -{ - - if (type > ACPI_TYPE_LOCAL_MAX) { - - /* Note: Assumes all TYPEs are contiguous (external/local) */ - - return (FALSE); - } - - return (TRUE); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_init_globals - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Init library globals. All globals that require specific - * initialization should be initialized here! - * - ******************************************************************************/ - -acpi_status acpi_ut_init_globals(void) -{ - acpi_status status; - u32 i; - - ACPI_FUNCTION_TRACE(ut_init_globals); - - /* Create all memory caches */ - - status = acpi_ut_create_caches(); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Mutex locked flags */ - - for (i = 0; i < ACPI_NUM_MUTEX; i++) { - acpi_gbl_mutex_info[i].mutex = NULL; - acpi_gbl_mutex_info[i].thread_id = ACPI_MUTEX_NOT_ACQUIRED; - acpi_gbl_mutex_info[i].use_count = 0; - } - - for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++) { - acpi_gbl_owner_id_mask[i] = 0; - } - acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000; /* Last ID is never valid */ - - /* GPE support */ - - acpi_gbl_gpe_xrupt_list_head = NULL; - acpi_gbl_gpe_fadt_blocks[0] = NULL; - acpi_gbl_gpe_fadt_blocks[1] = NULL; - acpi_current_gpe_count = 0; - - /* Global handlers */ - - acpi_gbl_system_notify.handler = NULL; - acpi_gbl_device_notify.handler = NULL; - acpi_gbl_exception_handler = NULL; - acpi_gbl_init_handler = NULL; - acpi_gbl_table_handler = NULL; - - /* Global Lock support */ - - acpi_gbl_global_lock_semaphore = NULL; - acpi_gbl_global_lock_mutex = NULL; - acpi_gbl_global_lock_acquired = FALSE; - acpi_gbl_global_lock_handle = 0; - acpi_gbl_global_lock_present = FALSE; - - /* Miscellaneous variables */ - - acpi_gbl_cm_single_step = FALSE; - acpi_gbl_db_terminate_threads = FALSE; - acpi_gbl_shutdown = FALSE; - acpi_gbl_ns_lookup_count = 0; - acpi_gbl_ps_find_count = 0; - acpi_gbl_acpi_hardware_present = TRUE; - acpi_gbl_last_owner_id_index = 0; - acpi_gbl_next_owner_id_offset = 0; - acpi_gbl_trace_method_name = 0; - acpi_gbl_trace_dbg_level = 0; - acpi_gbl_trace_dbg_layer = 0; - acpi_gbl_debugger_configuration = DEBUGGER_THREADING; - acpi_gbl_db_output_flags = ACPI_DB_CONSOLE_OUTPUT; - - /* Hardware oriented */ - - acpi_gbl_events_initialized = FALSE; - acpi_gbl_system_awake_and_running = TRUE; - - /* Namespace */ - - acpi_gbl_root_node = NULL; - acpi_gbl_root_node_struct.name.integer = ACPI_ROOT_NAME; - acpi_gbl_root_node_struct.descriptor_type = ACPI_DESC_TYPE_NAMED; - acpi_gbl_root_node_struct.type = ACPI_TYPE_DEVICE; - acpi_gbl_root_node_struct.child = NULL; - acpi_gbl_root_node_struct.peer = NULL; - acpi_gbl_root_node_struct.object = NULL; - acpi_gbl_root_node_struct.flags = ANOBJ_END_OF_PEER_LIST; - -#ifdef ACPI_DEBUG_OUTPUT - acpi_gbl_lowest_stack_pointer = ACPI_CAST_PTR(acpi_size, ACPI_SIZE_MAX); -#endif - -#ifdef ACPI_DBG_TRACK_ALLOCATIONS - acpi_gbl_display_final_mem_stats = FALSE; -#endif - - return_ACPI_STATUS(AE_OK); -} - -ACPI_EXPORT_SYMBOL(acpi_gbl_FADT) -ACPI_EXPORT_SYMBOL(acpi_dbg_level) -ACPI_EXPORT_SYMBOL(acpi_dbg_layer) -ACPI_EXPORT_SYMBOL(acpi_current_gpe_count) diff --git a/drivers/acpi/utilities/utinit.c b/drivers/acpi/utilities/utinit.c deleted file mode 100644 index 9316ec36a836..000000000000 --- a/drivers/acpi/utilities/utinit.c +++ /dev/null @@ -1,152 +0,0 @@ -/****************************************************************************** - * - * Module Name: utinit - Common ACPI subsystem initialization - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_UTILITIES -ACPI_MODULE_NAME("utinit") - -/* Local prototypes */ -static void acpi_ut_terminate(void); - -/****************************************************************************** - * - * FUNCTION: acpi_ut_terminate - * - * PARAMETERS: none - * - * RETURN: none - * - * DESCRIPTION: Free global memory - * - ******************************************************************************/ - -static void acpi_ut_terminate(void) -{ - struct acpi_gpe_block_info *gpe_block; - struct acpi_gpe_block_info *next_gpe_block; - struct acpi_gpe_xrupt_info *gpe_xrupt_info; - struct acpi_gpe_xrupt_info *next_gpe_xrupt_info; - - ACPI_FUNCTION_TRACE(ut_terminate); - - /* Free global GPE blocks and related info structures */ - - gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head; - while (gpe_xrupt_info) { - gpe_block = gpe_xrupt_info->gpe_block_list_head; - while (gpe_block) { - next_gpe_block = gpe_block->next; - ACPI_FREE(gpe_block->event_info); - ACPI_FREE(gpe_block->register_info); - ACPI_FREE(gpe_block); - - gpe_block = next_gpe_block; - } - next_gpe_xrupt_info = gpe_xrupt_info->next; - ACPI_FREE(gpe_xrupt_info); - gpe_xrupt_info = next_gpe_xrupt_info; - } - - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_subsystem_shutdown - * - * PARAMETERS: none - * - * RETURN: none - * - * DESCRIPTION: Shutdown the various subsystems. Don't delete the mutex - * objects here -- because the AML debugger may be still running. - * - ******************************************************************************/ - -void acpi_ut_subsystem_shutdown(void) -{ - - ACPI_FUNCTION_TRACE(ut_subsystem_shutdown); - - /* Just exit if subsystem is already shutdown */ - - if (acpi_gbl_shutdown) { - ACPI_ERROR((AE_INFO, "ACPI Subsystem is already terminated")); - return_VOID; - } - - /* Subsystem appears active, go ahead and shut it down */ - - acpi_gbl_shutdown = TRUE; - acpi_gbl_startup_flags = 0; - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n")); - -#ifndef ACPI_ASL_COMPILER - - /* Close the acpi_event Handling */ - - acpi_ev_terminate(); -#endif - - /* Close the Namespace */ - - acpi_ns_terminate(); - - /* Delete the ACPI tables */ - - acpi_tb_terminate(); - - /* Close the globals */ - - acpi_ut_terminate(); - - /* Purge the local caches */ - - (void)acpi_ut_delete_caches(); - return_VOID; -} diff --git a/drivers/acpi/utilities/utmath.c b/drivers/acpi/utilities/utmath.c deleted file mode 100644 index 616d7b271c9a..000000000000 --- a/drivers/acpi/utilities/utmath.c +++ /dev/null @@ -1,312 +0,0 @@ -/******************************************************************************* - * - * Module Name: utmath - Integer math support routines - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include - -#define _COMPONENT ACPI_UTILITIES -ACPI_MODULE_NAME("utmath") - -/* - * Support for double-precision integer divide. This code is included here - * in order to support kernel environments where the double-precision math - * library is not available. - */ -#ifndef ACPI_USE_NATIVE_DIVIDE -/******************************************************************************* - * - * FUNCTION: acpi_ut_short_divide - * - * PARAMETERS: Dividend - 64-bit dividend - * Divisor - 32-bit divisor - * out_quotient - Pointer to where the quotient is returned - * out_remainder - Pointer to where the remainder is returned - * - * RETURN: Status (Checks for divide-by-zero) - * - * DESCRIPTION: Perform a short (maximum 64 bits divided by 32 bits) - * divide and modulo. The result is a 64-bit quotient and a - * 32-bit remainder. - * - ******************************************************************************/ -acpi_status -acpi_ut_short_divide(acpi_integer dividend, - u32 divisor, - acpi_integer * out_quotient, u32 * out_remainder) -{ - union uint64_overlay dividend_ovl; - union uint64_overlay quotient; - u32 remainder32; - - ACPI_FUNCTION_TRACE(ut_short_divide); - - /* Always check for a zero divisor */ - - if (divisor == 0) { - ACPI_ERROR((AE_INFO, "Divide by zero")); - return_ACPI_STATUS(AE_AML_DIVIDE_BY_ZERO); - } - - dividend_ovl.full = dividend; - - /* - * The quotient is 64 bits, the remainder is always 32 bits, - * and is generated by the second divide. - */ - ACPI_DIV_64_BY_32(0, dividend_ovl.part.hi, divisor, - quotient.part.hi, remainder32); - ACPI_DIV_64_BY_32(remainder32, dividend_ovl.part.lo, divisor, - quotient.part.lo, remainder32); - - /* Return only what was requested */ - - if (out_quotient) { - *out_quotient = quotient.full; - } - if (out_remainder) { - *out_remainder = remainder32; - } - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_divide - * - * PARAMETERS: in_dividend - Dividend - * in_divisor - Divisor - * out_quotient - Pointer to where the quotient is returned - * out_remainder - Pointer to where the remainder is returned - * - * RETURN: Status (Checks for divide-by-zero) - * - * DESCRIPTION: Perform a divide and modulo. - * - ******************************************************************************/ - -acpi_status -acpi_ut_divide(acpi_integer in_dividend, - acpi_integer in_divisor, - acpi_integer * out_quotient, acpi_integer * out_remainder) -{ - union uint64_overlay dividend; - union uint64_overlay divisor; - union uint64_overlay quotient; - union uint64_overlay remainder; - union uint64_overlay normalized_dividend; - union uint64_overlay normalized_divisor; - u32 partial1; - union uint64_overlay partial2; - union uint64_overlay partial3; - - ACPI_FUNCTION_TRACE(ut_divide); - - /* Always check for a zero divisor */ - - if (in_divisor == 0) { - ACPI_ERROR((AE_INFO, "Divide by zero")); - return_ACPI_STATUS(AE_AML_DIVIDE_BY_ZERO); - } - - divisor.full = in_divisor; - dividend.full = in_dividend; - if (divisor.part.hi == 0) { - /* - * 1) Simplest case is where the divisor is 32 bits, we can - * just do two divides - */ - remainder.part.hi = 0; - - /* - * The quotient is 64 bits, the remainder is always 32 bits, - * and is generated by the second divide. - */ - ACPI_DIV_64_BY_32(0, dividend.part.hi, divisor.part.lo, - quotient.part.hi, partial1); - ACPI_DIV_64_BY_32(partial1, dividend.part.lo, divisor.part.lo, - quotient.part.lo, remainder.part.lo); - } - - else { - /* - * 2) The general case where the divisor is a full 64 bits - * is more difficult - */ - quotient.part.hi = 0; - normalized_dividend = dividend; - normalized_divisor = divisor; - - /* Normalize the operands (shift until the divisor is < 32 bits) */ - - do { - ACPI_SHIFT_RIGHT_64(normalized_divisor.part.hi, - normalized_divisor.part.lo); - ACPI_SHIFT_RIGHT_64(normalized_dividend.part.hi, - normalized_dividend.part.lo); - - } while (normalized_divisor.part.hi != 0); - - /* Partial divide */ - - ACPI_DIV_64_BY_32(normalized_dividend.part.hi, - normalized_dividend.part.lo, - normalized_divisor.part.lo, - quotient.part.lo, partial1); - - /* - * The quotient is always 32 bits, and simply requires adjustment. - * The 64-bit remainder must be generated. - */ - partial1 = quotient.part.lo * divisor.part.hi; - partial2.full = - (acpi_integer) quotient.part.lo * divisor.part.lo; - partial3.full = (acpi_integer) partial2.part.hi + partial1; - - remainder.part.hi = partial3.part.lo; - remainder.part.lo = partial2.part.lo; - - if (partial3.part.hi == 0) { - if (partial3.part.lo >= dividend.part.hi) { - if (partial3.part.lo == dividend.part.hi) { - if (partial2.part.lo > dividend.part.lo) { - quotient.part.lo--; - remainder.full -= divisor.full; - } - } else { - quotient.part.lo--; - remainder.full -= divisor.full; - } - } - - remainder.full = remainder.full - dividend.full; - remainder.part.hi = (u32) - ((s32) remainder.part.hi); - remainder.part.lo = (u32) - ((s32) remainder.part.lo); - - if (remainder.part.lo) { - remainder.part.hi--; - } - } - } - - /* Return only what was requested */ - - if (out_quotient) { - *out_quotient = quotient.full; - } - if (out_remainder) { - *out_remainder = remainder.full; - } - - return_ACPI_STATUS(AE_OK); -} - -#else -/******************************************************************************* - * - * FUNCTION: acpi_ut_short_divide, acpi_ut_divide - * - * PARAMETERS: See function headers above - * - * DESCRIPTION: Native versions of the ut_divide functions. Use these if either - * 1) The target is a 64-bit platform and therefore 64-bit - * integer math is supported directly by the machine. - * 2) The target is a 32-bit or 16-bit platform, and the - * double-precision integer math library is available to - * perform the divide. - * - ******************************************************************************/ -acpi_status -acpi_ut_short_divide(acpi_integer in_dividend, - u32 divisor, - acpi_integer * out_quotient, u32 * out_remainder) -{ - - ACPI_FUNCTION_TRACE(ut_short_divide); - - /* Always check for a zero divisor */ - - if (divisor == 0) { - ACPI_ERROR((AE_INFO, "Divide by zero")); - return_ACPI_STATUS(AE_AML_DIVIDE_BY_ZERO); - } - - /* Return only what was requested */ - - if (out_quotient) { - *out_quotient = in_dividend / divisor; - } - if (out_remainder) { - *out_remainder = (u32) (in_dividend % divisor); - } - - return_ACPI_STATUS(AE_OK); -} - -acpi_status -acpi_ut_divide(acpi_integer in_dividend, - acpi_integer in_divisor, - acpi_integer * out_quotient, acpi_integer * out_remainder) -{ - ACPI_FUNCTION_TRACE(ut_divide); - - /* Always check for a zero divisor */ - - if (in_divisor == 0) { - ACPI_ERROR((AE_INFO, "Divide by zero")); - return_ACPI_STATUS(AE_AML_DIVIDE_BY_ZERO); - } - - /* Return only what was requested */ - - if (out_quotient) { - *out_quotient = in_dividend / in_divisor; - } - if (out_remainder) { - *out_remainder = in_dividend % in_divisor; - } - - return_ACPI_STATUS(AE_OK); -} - -#endif diff --git a/drivers/acpi/utilities/utmisc.c b/drivers/acpi/utilities/utmisc.c deleted file mode 100644 index 8f8b407142ee..000000000000 --- a/drivers/acpi/utilities/utmisc.c +++ /dev/null @@ -1,1093 +0,0 @@ -/******************************************************************************* - * - * Module Name: utmisc - common utility procedures - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include - -#include -#include -#include - -#define _COMPONENT ACPI_UTILITIES -ACPI_MODULE_NAME("utmisc") - -/******************************************************************************* - * - * FUNCTION: acpi_ut_validate_exception - * - * PARAMETERS: Status - The acpi_status code to be formatted - * - * RETURN: A string containing the exception text. NULL if exception is - * not valid. - * - * DESCRIPTION: This function validates and translates an ACPI exception into - * an ASCII string. - * - ******************************************************************************/ -const char *acpi_ut_validate_exception(acpi_status status) -{ - u32 sub_status; - const char *exception = NULL; - - ACPI_FUNCTION_ENTRY(); - - /* - * Status is composed of two parts, a "type" and an actual code - */ - sub_status = (status & ~AE_CODE_MASK); - - switch (status & AE_CODE_MASK) { - case AE_CODE_ENVIRONMENTAL: - - if (sub_status <= AE_CODE_ENV_MAX) { - exception = acpi_gbl_exception_names_env[sub_status]; - } - break; - - case AE_CODE_PROGRAMMER: - - if (sub_status <= AE_CODE_PGM_MAX) { - exception = acpi_gbl_exception_names_pgm[sub_status]; - } - break; - - case AE_CODE_ACPI_TABLES: - - if (sub_status <= AE_CODE_TBL_MAX) { - exception = acpi_gbl_exception_names_tbl[sub_status]; - } - break; - - case AE_CODE_AML: - - if (sub_status <= AE_CODE_AML_MAX) { - exception = acpi_gbl_exception_names_aml[sub_status]; - } - break; - - case AE_CODE_CONTROL: - - if (sub_status <= AE_CODE_CTRL_MAX) { - exception = acpi_gbl_exception_names_ctrl[sub_status]; - } - break; - - default: - break; - } - - return (ACPI_CAST_PTR(const char, exception)); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_is_aml_table - * - * PARAMETERS: Table - An ACPI table - * - * RETURN: TRUE if table contains executable AML; FALSE otherwise - * - * DESCRIPTION: Check ACPI Signature for a table that contains AML code. - * Currently, these are DSDT,SSDT,PSDT. All other table types are - * data tables that do not contain AML code. - * - ******************************************************************************/ - -u8 acpi_ut_is_aml_table(struct acpi_table_header *table) -{ - - /* These are the only tables that contain executable AML */ - - if (ACPI_COMPARE_NAME(table->signature, ACPI_SIG_DSDT) || - ACPI_COMPARE_NAME(table->signature, ACPI_SIG_PSDT) || - ACPI_COMPARE_NAME(table->signature, ACPI_SIG_SSDT)) { - return (TRUE); - } - - return (FALSE); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_allocate_owner_id - * - * PARAMETERS: owner_id - Where the new owner ID is returned - * - * RETURN: Status - * - * DESCRIPTION: Allocate a table or method owner ID. The owner ID is used to - * track objects created by the table or method, to be deleted - * when the method exits or the table is unloaded. - * - ******************************************************************************/ - -acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id) -{ - u32 i; - u32 j; - u32 k; - acpi_status status; - - ACPI_FUNCTION_TRACE(ut_allocate_owner_id); - - /* Guard against multiple allocations of ID to the same location */ - - if (*owner_id) { - ACPI_ERROR((AE_INFO, "Owner ID [%2.2X] already exists", - *owner_id)); - return_ACPI_STATUS(AE_ALREADY_EXISTS); - } - - /* Mutex for the global ID mask */ - - status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * Find a free owner ID, cycle through all possible IDs on repeated - * allocations. (ACPI_NUM_OWNERID_MASKS + 1) because first index may have - * to be scanned twice. - */ - for (i = 0, j = acpi_gbl_last_owner_id_index; - i < (ACPI_NUM_OWNERID_MASKS + 1); i++, j++) { - if (j >= ACPI_NUM_OWNERID_MASKS) { - j = 0; /* Wraparound to start of mask array */ - } - - for (k = acpi_gbl_next_owner_id_offset; k < 32; k++) { - if (acpi_gbl_owner_id_mask[j] == ACPI_UINT32_MAX) { - - /* There are no free IDs in this mask */ - - break; - } - - if (!(acpi_gbl_owner_id_mask[j] & (1 << k))) { - /* - * Found a free ID. The actual ID is the bit index plus one, - * making zero an invalid Owner ID. Save this as the last ID - * allocated and update the global ID mask. - */ - acpi_gbl_owner_id_mask[j] |= (1 << k); - - acpi_gbl_last_owner_id_index = (u8) j; - acpi_gbl_next_owner_id_offset = (u8) (k + 1); - - /* - * Construct encoded ID from the index and bit position - * - * Note: Last [j].k (bit 255) is never used and is marked - * permanently allocated (prevents +1 overflow) - */ - *owner_id = - (acpi_owner_id) ((k + 1) + ACPI_MUL_32(j)); - - ACPI_DEBUG_PRINT((ACPI_DB_VALUES, - "Allocated OwnerId: %2.2X\n", - (unsigned int)*owner_id)); - goto exit; - } - } - - acpi_gbl_next_owner_id_offset = 0; - } - - /* - * All owner_ids have been allocated. This typically should - * not happen since the IDs are reused after deallocation. The IDs are - * allocated upon table load (one per table) and method execution, and - * they are released when a table is unloaded or a method completes - * execution. - * - * If this error happens, there may be very deep nesting of invoked control - * methods, or there may be a bug where the IDs are not released. - */ - status = AE_OWNER_ID_LIMIT; - ACPI_ERROR((AE_INFO, - "Could not allocate new OwnerId (255 max), AE_OWNER_ID_LIMIT")); - - exit: - (void)acpi_ut_release_mutex(ACPI_MTX_CACHES); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_release_owner_id - * - * PARAMETERS: owner_id_ptr - Pointer to a previously allocated owner_iD - * - * RETURN: None. No error is returned because we are either exiting a - * control method or unloading a table. Either way, we would - * ignore any error anyway. - * - * DESCRIPTION: Release a table or method owner ID. Valid IDs are 1 - 255 - * - ******************************************************************************/ - -void acpi_ut_release_owner_id(acpi_owner_id * owner_id_ptr) -{ - acpi_owner_id owner_id = *owner_id_ptr; - acpi_status status; - u32 index; - u32 bit; - - ACPI_FUNCTION_TRACE_U32(ut_release_owner_id, owner_id); - - /* Always clear the input owner_id (zero is an invalid ID) */ - - *owner_id_ptr = 0; - - /* Zero is not a valid owner_iD */ - - if (owner_id == 0) { - ACPI_ERROR((AE_INFO, "Invalid OwnerId: %2.2X", owner_id)); - return_VOID; - } - - /* Mutex for the global ID mask */ - - status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES); - if (ACPI_FAILURE(status)) { - return_VOID; - } - - /* Normalize the ID to zero */ - - owner_id--; - - /* Decode ID to index/offset pair */ - - index = ACPI_DIV_32(owner_id); - bit = 1 << ACPI_MOD_32(owner_id); - - /* Free the owner ID only if it is valid */ - - if (acpi_gbl_owner_id_mask[index] & bit) { - acpi_gbl_owner_id_mask[index] ^= bit; - } else { - ACPI_ERROR((AE_INFO, - "Release of non-allocated OwnerId: %2.2X", - owner_id + 1)); - } - - (void)acpi_ut_release_mutex(ACPI_MTX_CACHES); - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_strupr (strupr) - * - * PARAMETERS: src_string - The source string to convert - * - * RETURN: None - * - * DESCRIPTION: Convert string to uppercase - * - * NOTE: This is not a POSIX function, so it appears here, not in utclib.c - * - ******************************************************************************/ - -void acpi_ut_strupr(char *src_string) -{ - char *string; - - ACPI_FUNCTION_ENTRY(); - - if (!src_string) { - return; - } - - /* Walk entire string, uppercasing the letters */ - - for (string = src_string; *string; string++) { - *string = (char)ACPI_TOUPPER(*string); - } - - return; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_print_string - * - * PARAMETERS: String - Null terminated ASCII string - * max_length - Maximum output length - * - * RETURN: None - * - * DESCRIPTION: Dump an ASCII string with support for ACPI-defined escape - * sequences. - * - ******************************************************************************/ - -void acpi_ut_print_string(char *string, u8 max_length) -{ - u32 i; - - if (!string) { - acpi_os_printf("<\"NULL STRING PTR\">"); - return; - } - - acpi_os_printf("\""); - for (i = 0; string[i] && (i < max_length); i++) { - - /* Escape sequences */ - - switch (string[i]) { - case 0x07: - acpi_os_printf("\\a"); /* BELL */ - break; - - case 0x08: - acpi_os_printf("\\b"); /* BACKSPACE */ - break; - - case 0x0C: - acpi_os_printf("\\f"); /* FORMFEED */ - break; - - case 0x0A: - acpi_os_printf("\\n"); /* LINEFEED */ - break; - - case 0x0D: - acpi_os_printf("\\r"); /* CARRIAGE RETURN */ - break; - - case 0x09: - acpi_os_printf("\\t"); /* HORIZONTAL TAB */ - break; - - case 0x0B: - acpi_os_printf("\\v"); /* VERTICAL TAB */ - break; - - case '\'': /* Single Quote */ - case '\"': /* Double Quote */ - case '\\': /* Backslash */ - acpi_os_printf("\\%c", (int)string[i]); - break; - - default: - - /* Check for printable character or hex escape */ - - if (ACPI_IS_PRINT(string[i])) { - /* This is a normal character */ - - acpi_os_printf("%c", (int)string[i]); - } else { - /* All others will be Hex escapes */ - - acpi_os_printf("\\x%2.2X", (s32) string[i]); - } - break; - } - } - acpi_os_printf("\""); - - if (i == max_length && string[i]) { - acpi_os_printf("..."); - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_dword_byte_swap - * - * PARAMETERS: Value - Value to be converted - * - * RETURN: u32 integer with bytes swapped - * - * DESCRIPTION: Convert a 32-bit value to big-endian (swap the bytes) - * - ******************************************************************************/ - -u32 acpi_ut_dword_byte_swap(u32 value) -{ - union { - u32 value; - u8 bytes[4]; - } out; - union { - u32 value; - u8 bytes[4]; - } in; - - ACPI_FUNCTION_ENTRY(); - - in.value = value; - - out.bytes[0] = in.bytes[3]; - out.bytes[1] = in.bytes[2]; - out.bytes[2] = in.bytes[1]; - out.bytes[3] = in.bytes[0]; - - return (out.value); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_set_integer_width - * - * PARAMETERS: Revision From DSDT header - * - * RETURN: None - * - * DESCRIPTION: Set the global integer bit width based upon the revision - * of the DSDT. For Revision 1 and 0, Integers are 32 bits. - * For Revision 2 and above, Integers are 64 bits. Yes, this - * makes a difference. - * - ******************************************************************************/ - -void acpi_ut_set_integer_width(u8 revision) -{ - - if (revision < 2) { - - /* 32-bit case */ - - acpi_gbl_integer_bit_width = 32; - acpi_gbl_integer_nybble_width = 8; - acpi_gbl_integer_byte_width = 4; - } else { - /* 64-bit case (ACPI 2.0+) */ - - acpi_gbl_integer_bit_width = 64; - acpi_gbl_integer_nybble_width = 16; - acpi_gbl_integer_byte_width = 8; - } -} - -#ifdef ACPI_DEBUG_OUTPUT -/******************************************************************************* - * - * FUNCTION: acpi_ut_display_init_pathname - * - * PARAMETERS: Type - Object type of the node - * obj_handle - Handle whose pathname will be displayed - * Path - Additional path string to be appended. - * (NULL if no extra path) - * - * RETURN: acpi_status - * - * DESCRIPTION: Display full pathname of an object, DEBUG ONLY - * - ******************************************************************************/ - -void -acpi_ut_display_init_pathname(u8 type, - struct acpi_namespace_node *obj_handle, - char *path) -{ - acpi_status status; - struct acpi_buffer buffer; - - ACPI_FUNCTION_ENTRY(); - - /* Only print the path if the appropriate debug level is enabled */ - - if (!(acpi_dbg_level & ACPI_LV_INIT_NAMES)) { - return; - } - - /* Get the full pathname to the node */ - - buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; - status = acpi_ns_handle_to_pathname(obj_handle, &buffer); - if (ACPI_FAILURE(status)) { - return; - } - - /* Print what we're doing */ - - switch (type) { - case ACPI_TYPE_METHOD: - acpi_os_printf("Executing "); - break; - - default: - acpi_os_printf("Initializing "); - break; - } - - /* Print the object type and pathname */ - - acpi_os_printf("%-12s %s", - acpi_ut_get_type_name(type), (char *)buffer.pointer); - - /* Extra path is used to append names like _STA, _INI, etc. */ - - if (path) { - acpi_os_printf(".%s", path); - } - acpi_os_printf("\n"); - - ACPI_FREE(buffer.pointer); -} -#endif - -/******************************************************************************* - * - * FUNCTION: acpi_ut_valid_acpi_char - * - * PARAMETERS: Char - The character to be examined - * Position - Byte position (0-3) - * - * RETURN: TRUE if the character is valid, FALSE otherwise - * - * DESCRIPTION: Check for a valid ACPI character. Must be one of: - * 1) Upper case alpha - * 2) numeric - * 3) underscore - * - * We allow a '!' as the last character because of the ASF! table - * - ******************************************************************************/ - -u8 acpi_ut_valid_acpi_char(char character, u32 position) -{ - - if (!((character >= 'A' && character <= 'Z') || - (character >= '0' && character <= '9') || (character == '_'))) { - - /* Allow a '!' in the last position */ - - if (character == '!' && position == 3) { - return (TRUE); - } - - return (FALSE); - } - - return (TRUE); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_valid_acpi_name - * - * PARAMETERS: Name - The name to be examined - * - * RETURN: TRUE if the name is valid, FALSE otherwise - * - * DESCRIPTION: Check for a valid ACPI name. Each character must be one of: - * 1) Upper case alpha - * 2) numeric - * 3) underscore - * - ******************************************************************************/ - -u8 acpi_ut_valid_acpi_name(u32 name) -{ - u32 i; - - ACPI_FUNCTION_ENTRY(); - - for (i = 0; i < ACPI_NAME_SIZE; i++) { - if (!acpi_ut_valid_acpi_char - ((ACPI_CAST_PTR(char, &name))[i], i)) { - return (FALSE); - } - } - - return (TRUE); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_repair_name - * - * PARAMETERS: Name - The ACPI name to be repaired - * - * RETURN: Repaired version of the name - * - * DESCRIPTION: Repair an ACPI name: Change invalid characters to '*' and - * return the new name. - * - ******************************************************************************/ - -acpi_name acpi_ut_repair_name(char *name) -{ - u32 i; - char new_name[ACPI_NAME_SIZE]; - - for (i = 0; i < ACPI_NAME_SIZE; i++) { - new_name[i] = name[i]; - - /* - * Replace a bad character with something printable, yet technically - * still invalid. This prevents any collisions with existing "good" - * names in the namespace. - */ - if (!acpi_ut_valid_acpi_char(name[i], i)) { - new_name[i] = '*'; - } - } - - return (*(u32 *) new_name); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_strtoul64 - * - * PARAMETERS: String - Null terminated string - * Base - Radix of the string: 16 or ACPI_ANY_BASE; - * ACPI_ANY_BASE means 'in behalf of to_integer' - * ret_integer - Where the converted integer is returned - * - * RETURN: Status and Converted value - * - * DESCRIPTION: Convert a string into an unsigned value. Performs either a - * 32-bit or 64-bit conversion, depending on the current mode - * of the interpreter. - * NOTE: Does not support Octal strings, not needed. - * - ******************************************************************************/ - -acpi_status -acpi_ut_strtoul64(char *string, u32 base, acpi_integer * ret_integer) -{ - u32 this_digit = 0; - acpi_integer return_value = 0; - acpi_integer quotient; - acpi_integer dividend; - u32 to_integer_op = (base == ACPI_ANY_BASE); - u32 mode32 = (acpi_gbl_integer_byte_width == 4); - u8 valid_digits = 0; - u8 sign_of0x = 0; - u8 term = 0; - - ACPI_FUNCTION_TRACE_STR(ut_stroul64, string); - - switch (base) { - case ACPI_ANY_BASE: - case 16: - break; - - default: - /* Invalid Base */ - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - if (!string) { - goto error_exit; - } - - /* Skip over any white space in the buffer */ - - while ((*string) && (ACPI_IS_SPACE(*string) || *string == '\t')) { - string++; - } - - if (to_integer_op) { - /* - * Base equal to ACPI_ANY_BASE means 'to_integer operation case'. - * We need to determine if it is decimal or hexadecimal. - */ - if ((*string == '0') && (ACPI_TOLOWER(*(string + 1)) == 'x')) { - sign_of0x = 1; - base = 16; - - /* Skip over the leading '0x' */ - string += 2; - } else { - base = 10; - } - } - - /* Any string left? Check that '0x' is not followed by white space. */ - - if (!(*string) || ACPI_IS_SPACE(*string) || *string == '\t') { - if (to_integer_op) { - goto error_exit; - } else { - goto all_done; - } - } - - /* - * Perform a 32-bit or 64-bit conversion, depending upon the current - * execution mode of the interpreter - */ - dividend = (mode32) ? ACPI_UINT32_MAX : ACPI_UINT64_MAX; - - /* Main loop: convert the string to a 32- or 64-bit integer */ - - while (*string) { - if (ACPI_IS_DIGIT(*string)) { - - /* Convert ASCII 0-9 to Decimal value */ - - this_digit = ((u8) * string) - '0'; - } else if (base == 10) { - - /* Digit is out of range; possible in to_integer case only */ - - term = 1; - } else { - this_digit = (u8) ACPI_TOUPPER(*string); - if (ACPI_IS_XDIGIT((char)this_digit)) { - - /* Convert ASCII Hex char to value */ - - this_digit = this_digit - 'A' + 10; - } else { - term = 1; - } - } - - if (term) { - if (to_integer_op) { - goto error_exit; - } else { - break; - } - } else if ((valid_digits == 0) && (this_digit == 0) - && !sign_of0x) { - - /* Skip zeros */ - string++; - continue; - } - - valid_digits++; - - if (sign_of0x && ((valid_digits > 16) - || ((valid_digits > 8) && mode32))) { - /* - * This is to_integer operation case. - * No any restrictions for string-to-integer conversion, - * see ACPI spec. - */ - goto error_exit; - } - - /* Divide the digit into the correct position */ - - (void) - acpi_ut_short_divide((dividend - (acpi_integer) this_digit), - base, "ient, NULL); - - if (return_value > quotient) { - if (to_integer_op) { - goto error_exit; - } else { - break; - } - } - - return_value *= base; - return_value += this_digit; - string++; - } - - /* All done, normal exit */ - - all_done: - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Converted value: %8.8X%8.8X\n", - ACPI_FORMAT_UINT64(return_value))); - - *ret_integer = return_value; - return_ACPI_STATUS(AE_OK); - - error_exit: - /* Base was set/validated above */ - - if (base == 10) { - return_ACPI_STATUS(AE_BAD_DECIMAL_CONSTANT); - } else { - return_ACPI_STATUS(AE_BAD_HEX_CONSTANT); - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_create_update_state_and_push - * - * PARAMETERS: Object - Object to be added to the new state - * Action - Increment/Decrement - * state_list - List the state will be added to - * - * RETURN: Status - * - * DESCRIPTION: Create a new state and push it - * - ******************************************************************************/ - -acpi_status -acpi_ut_create_update_state_and_push(union acpi_operand_object *object, - u16 action, - union acpi_generic_state **state_list) -{ - union acpi_generic_state *state; - - ACPI_FUNCTION_ENTRY(); - - /* Ignore null objects; these are expected */ - - if (!object) { - return (AE_OK); - } - - state = acpi_ut_create_update_state(object, action); - if (!state) { - return (AE_NO_MEMORY); - } - - acpi_ut_push_generic_state(state_list, state); - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_walk_package_tree - * - * PARAMETERS: source_object - The package to walk - * target_object - Target object (if package is being copied) - * walk_callback - Called once for each package element - * Context - Passed to the callback function - * - * RETURN: Status - * - * DESCRIPTION: Walk through a package - * - ******************************************************************************/ - -acpi_status -acpi_ut_walk_package_tree(union acpi_operand_object * source_object, - void *target_object, - acpi_pkg_callback walk_callback, void *context) -{ - acpi_status status = AE_OK; - union acpi_generic_state *state_list = NULL; - union acpi_generic_state *state; - u32 this_index; - union acpi_operand_object *this_source_obj; - - ACPI_FUNCTION_TRACE(ut_walk_package_tree); - - state = acpi_ut_create_pkg_state(source_object, target_object, 0); - if (!state) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - while (state) { - - /* Get one element of the package */ - - this_index = state->pkg.index; - this_source_obj = (union acpi_operand_object *) - state->pkg.source_object->package.elements[this_index]; - - /* - * Check for: - * 1) An uninitialized package element. It is completely - * legal to declare a package and leave it uninitialized - * 2) Not an internal object - can be a namespace node instead - * 3) Any type other than a package. Packages are handled in else - * case below. - */ - if ((!this_source_obj) || - (ACPI_GET_DESCRIPTOR_TYPE(this_source_obj) != - ACPI_DESC_TYPE_OPERAND) - || (ACPI_GET_OBJECT_TYPE(this_source_obj) != - ACPI_TYPE_PACKAGE)) { - status = - walk_callback(ACPI_COPY_TYPE_SIMPLE, - this_source_obj, state, context); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - state->pkg.index++; - while (state->pkg.index >= - state->pkg.source_object->package.count) { - /* - * We've handled all of the objects at this level, This means - * that we have just completed a package. That package may - * have contained one or more packages itself. - * - * Delete this state and pop the previous state (package). - */ - acpi_ut_delete_generic_state(state); - state = acpi_ut_pop_generic_state(&state_list); - - /* Finished when there are no more states */ - - if (!state) { - /* - * We have handled all of the objects in the top level - * package just add the length of the package objects - * and exit - */ - return_ACPI_STATUS(AE_OK); - } - - /* - * Go back up a level and move the index past the just - * completed package object. - */ - state->pkg.index++; - } - } else { - /* This is a subobject of type package */ - - status = - walk_callback(ACPI_COPY_TYPE_PACKAGE, - this_source_obj, state, context); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * Push the current state and create a new one - * The callback above returned a new target package object. - */ - acpi_ut_push_generic_state(&state_list, state); - state = acpi_ut_create_pkg_state(this_source_obj, - state->pkg. - this_target_obj, 0); - if (!state) { - - /* Free any stacked Update State objects */ - - while (state_list) { - state = - acpi_ut_pop_generic_state - (&state_list); - acpi_ut_delete_generic_state(state); - } - return_ACPI_STATUS(AE_NO_MEMORY); - } - } - } - - /* We should never get here */ - - return_ACPI_STATUS(AE_AML_INTERNAL); -} - -/******************************************************************************* - * - * FUNCTION: acpi_error, acpi_exception, acpi_warning, acpi_info - * - * PARAMETERS: module_name - Caller's module name (for error output) - * line_number - Caller's line number (for error output) - * Format - Printf format string + additional args - * - * RETURN: None - * - * DESCRIPTION: Print message with module/line/version info - * - ******************************************************************************/ - -void ACPI_INTERNAL_VAR_XFACE -acpi_error(const char *module_name, u32 line_number, const char *format, ...) -{ - va_list args; - - acpi_os_printf("ACPI Error (%s-%04d): ", module_name, line_number); - - va_start(args, format); - acpi_os_vprintf(format, args); - acpi_os_printf(" [%X]\n", ACPI_CA_VERSION); - va_end(args); -} - -void ACPI_INTERNAL_VAR_XFACE -acpi_exception(const char *module_name, - u32 line_number, acpi_status status, const char *format, ...) -{ - va_list args; - - acpi_os_printf("ACPI Exception (%s-%04d): %s, ", module_name, - line_number, acpi_format_exception(status)); - - va_start(args, format); - acpi_os_vprintf(format, args); - acpi_os_printf(" [%X]\n", ACPI_CA_VERSION); - va_end(args); -} - -void ACPI_INTERNAL_VAR_XFACE -acpi_warning(const char *module_name, u32 line_number, const char *format, ...) -{ - va_list args; - - acpi_os_printf("ACPI Warning (%s-%04d): ", module_name, line_number); - - va_start(args, format); - acpi_os_vprintf(format, args); - acpi_os_printf(" [%X]\n", ACPI_CA_VERSION); - va_end(args); -} - -void ACPI_INTERNAL_VAR_XFACE -acpi_info(const char *module_name, u32 line_number, const char *format, ...) -{ - va_list args; - - /* - * Removed module_name, line_number, and acpica version, not needed - * for info output - */ - acpi_os_printf("ACPI: "); - - va_start(args, format); - acpi_os_vprintf(format, args); - acpi_os_printf("\n"); - va_end(args); -} - -ACPI_EXPORT_SYMBOL(acpi_error) -ACPI_EXPORT_SYMBOL(acpi_exception) -ACPI_EXPORT_SYMBOL(acpi_warning) -ACPI_EXPORT_SYMBOL(acpi_info) diff --git a/drivers/acpi/utilities/utmutex.c b/drivers/acpi/utilities/utmutex.c deleted file mode 100644 index 7b48ba3f3f8a..000000000000 --- a/drivers/acpi/utilities/utmutex.c +++ /dev/null @@ -1,342 +0,0 @@ -/******************************************************************************* - * - * Module Name: utmutex - local mutex support - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include - -#define _COMPONENT ACPI_UTILITIES -ACPI_MODULE_NAME("utmutex") - -/* Local prototypes */ -static acpi_status acpi_ut_create_mutex(acpi_mutex_handle mutex_id); - -static acpi_status acpi_ut_delete_mutex(acpi_mutex_handle mutex_id); - -/******************************************************************************* - * - * FUNCTION: acpi_ut_mutex_initialize - * - * PARAMETERS: None. - * - * RETURN: Status - * - * DESCRIPTION: Create the system mutex objects. - * - ******************************************************************************/ - -acpi_status acpi_ut_mutex_initialize(void) -{ - u32 i; - acpi_status status; - - ACPI_FUNCTION_TRACE(ut_mutex_initialize); - - /* - * Create each of the predefined mutex objects - */ - for (i = 0; i < ACPI_NUM_MUTEX; i++) { - status = acpi_ut_create_mutex(i); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - - /* Create the spinlocks for use at interrupt level */ - - spin_lock_init(acpi_gbl_gpe_lock); - spin_lock_init(acpi_gbl_hardware_lock); - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_mutex_terminate - * - * PARAMETERS: None. - * - * RETURN: None. - * - * DESCRIPTION: Delete all of the system mutex objects. - * - ******************************************************************************/ - -void acpi_ut_mutex_terminate(void) -{ - u32 i; - - ACPI_FUNCTION_TRACE(ut_mutex_terminate); - - /* - * Delete each predefined mutex object - */ - for (i = 0; i < ACPI_NUM_MUTEX; i++) { - (void)acpi_ut_delete_mutex(i); - } - - /* Delete the spinlocks */ - - acpi_os_delete_lock(acpi_gbl_gpe_lock); - acpi_os_delete_lock(acpi_gbl_hardware_lock); - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_create_mutex - * - * PARAMETERS: mutex_iD - ID of the mutex to be created - * - * RETURN: Status - * - * DESCRIPTION: Create a mutex object. - * - ******************************************************************************/ - -static acpi_status acpi_ut_create_mutex(acpi_mutex_handle mutex_id) -{ - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE_U32(ut_create_mutex, mutex_id); - - if (mutex_id > ACPI_MAX_MUTEX) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - if (!acpi_gbl_mutex_info[mutex_id].mutex) { - status = - acpi_os_create_mutex(&acpi_gbl_mutex_info[mutex_id].mutex); - acpi_gbl_mutex_info[mutex_id].thread_id = - ACPI_MUTEX_NOT_ACQUIRED; - acpi_gbl_mutex_info[mutex_id].use_count = 0; - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_delete_mutex - * - * PARAMETERS: mutex_iD - ID of the mutex to be deleted - * - * RETURN: Status - * - * DESCRIPTION: Delete a mutex object. - * - ******************************************************************************/ - -static acpi_status acpi_ut_delete_mutex(acpi_mutex_handle mutex_id) -{ - - ACPI_FUNCTION_TRACE_U32(ut_delete_mutex, mutex_id); - - if (mutex_id > ACPI_MAX_MUTEX) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - acpi_os_delete_mutex(acpi_gbl_mutex_info[mutex_id].mutex); - - acpi_gbl_mutex_info[mutex_id].mutex = NULL; - acpi_gbl_mutex_info[mutex_id].thread_id = ACPI_MUTEX_NOT_ACQUIRED; - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_acquire_mutex - * - * PARAMETERS: mutex_iD - ID of the mutex to be acquired - * - * RETURN: Status - * - * DESCRIPTION: Acquire a mutex object. - * - ******************************************************************************/ - -acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id) -{ - acpi_status status; - acpi_thread_id this_thread_id; - - ACPI_FUNCTION_NAME(ut_acquire_mutex); - - if (mutex_id > ACPI_MAX_MUTEX) { - return (AE_BAD_PARAMETER); - } - - this_thread_id = acpi_os_get_thread_id(); - -#ifdef ACPI_MUTEX_DEBUG - { - u32 i; - /* - * Mutex debug code, for internal debugging only. - * - * Deadlock prevention. Check if this thread owns any mutexes of value - * greater than or equal to this one. If so, the thread has violated - * the mutex ordering rule. This indicates a coding error somewhere in - * the ACPI subsystem code. - */ - for (i = mutex_id; i < ACPI_NUM_MUTEX; i++) { - if (acpi_gbl_mutex_info[i].thread_id == this_thread_id) { - if (i == mutex_id) { - ACPI_ERROR((AE_INFO, - "Mutex [%s] already acquired by this thread [%X]", - acpi_ut_get_mutex_name - (mutex_id), - this_thread_id)); - - return (AE_ALREADY_ACQUIRED); - } - - ACPI_ERROR((AE_INFO, - "Invalid acquire order: Thread %X owns [%s], wants [%s]", - this_thread_id, - acpi_ut_get_mutex_name(i), - acpi_ut_get_mutex_name(mutex_id))); - - return (AE_ACQUIRE_DEADLOCK); - } - } - } -#endif - - ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, - "Thread %lX attempting to acquire Mutex [%s]\n", - (unsigned long)this_thread_id, - acpi_ut_get_mutex_name(mutex_id))); - - status = acpi_os_acquire_mutex(acpi_gbl_mutex_info[mutex_id].mutex, - ACPI_WAIT_FOREVER); - if (ACPI_SUCCESS(status)) { - ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, - "Thread %lX acquired Mutex [%s]\n", - (unsigned long)this_thread_id, - acpi_ut_get_mutex_name(mutex_id))); - - acpi_gbl_mutex_info[mutex_id].use_count++; - acpi_gbl_mutex_info[mutex_id].thread_id = this_thread_id; - } else { - ACPI_EXCEPTION((AE_INFO, status, - "Thread %lX could not acquire Mutex [%X]", - (unsigned long)this_thread_id, mutex_id)); - } - - return (status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_release_mutex - * - * PARAMETERS: mutex_iD - ID of the mutex to be released - * - * RETURN: Status - * - * DESCRIPTION: Release a mutex object. - * - ******************************************************************************/ - -acpi_status acpi_ut_release_mutex(acpi_mutex_handle mutex_id) -{ - acpi_thread_id this_thread_id; - - ACPI_FUNCTION_NAME(ut_release_mutex); - - this_thread_id = acpi_os_get_thread_id(); - ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, - "Thread %lX releasing Mutex [%s]\n", - (unsigned long)this_thread_id, - acpi_ut_get_mutex_name(mutex_id))); - - if (mutex_id > ACPI_MAX_MUTEX) { - return (AE_BAD_PARAMETER); - } - - /* - * Mutex must be acquired in order to release it! - */ - if (acpi_gbl_mutex_info[mutex_id].thread_id == ACPI_MUTEX_NOT_ACQUIRED) { - ACPI_ERROR((AE_INFO, - "Mutex [%X] is not acquired, cannot release", - mutex_id)); - - return (AE_NOT_ACQUIRED); - } -#ifdef ACPI_MUTEX_DEBUG - { - u32 i; - /* - * Mutex debug code, for internal debugging only. - * - * Deadlock prevention. Check if this thread owns any mutexes of value - * greater than this one. If so, the thread has violated the mutex - * ordering rule. This indicates a coding error somewhere in - * the ACPI subsystem code. - */ - for (i = mutex_id; i < ACPI_NUM_MUTEX; i++) { - if (acpi_gbl_mutex_info[i].thread_id == this_thread_id) { - if (i == mutex_id) { - continue; - } - - ACPI_ERROR((AE_INFO, - "Invalid release order: owns [%s], releasing [%s]", - acpi_ut_get_mutex_name(i), - acpi_ut_get_mutex_name(mutex_id))); - - return (AE_RELEASE_DEADLOCK); - } - } - } -#endif - - /* Mark unlocked FIRST */ - - acpi_gbl_mutex_info[mutex_id].thread_id = ACPI_MUTEX_NOT_ACQUIRED; - - acpi_os_release_mutex(acpi_gbl_mutex_info[mutex_id].mutex); - return (AE_OK); -} diff --git a/drivers/acpi/utilities/utobject.c b/drivers/acpi/utilities/utobject.c deleted file mode 100644 index 964b23c11610..000000000000 --- a/drivers/acpi/utilities/utobject.c +++ /dev/null @@ -1,677 +0,0 @@ -/****************************************************************************** - * - * Module Name: utobject - ACPI object create/delete/size/cache routines - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_UTILITIES -ACPI_MODULE_NAME("utobject") - -/* Local prototypes */ -static acpi_status -acpi_ut_get_simple_object_size(union acpi_operand_object *obj, - acpi_size * obj_length); - -static acpi_status -acpi_ut_get_package_object_size(union acpi_operand_object *obj, - acpi_size * obj_length); - -static acpi_status -acpi_ut_get_element_length(u8 object_type, - union acpi_operand_object *source_object, - union acpi_generic_state *state, void *context); - -/******************************************************************************* - * - * FUNCTION: acpi_ut_create_internal_object_dbg - * - * PARAMETERS: module_name - Source file name of caller - * line_number - Line number of caller - * component_id - Component type of caller - * Type - ACPI Type of the new object - * - * RETURN: A new internal object, null on failure - * - * DESCRIPTION: Create and initialize a new internal object. - * - * NOTE: We always allocate the worst-case object descriptor because - * these objects are cached, and we want them to be - * one-size-satisifies-any-request. This in itself may not be - * the most memory efficient, but the efficiency of the object - * cache should more than make up for this! - * - ******************************************************************************/ - -union acpi_operand_object *acpi_ut_create_internal_object_dbg(const char - *module_name, - u32 line_number, - u32 component_id, - acpi_object_type - type) -{ - union acpi_operand_object *object; - union acpi_operand_object *second_object; - - ACPI_FUNCTION_TRACE_STR(ut_create_internal_object_dbg, - acpi_ut_get_type_name(type)); - - /* Allocate the raw object descriptor */ - - object = - acpi_ut_allocate_object_desc_dbg(module_name, line_number, - component_id); - if (!object) { - return_PTR(NULL); - } - - switch (type) { - case ACPI_TYPE_REGION: - case ACPI_TYPE_BUFFER_FIELD: - case ACPI_TYPE_LOCAL_BANK_FIELD: - - /* These types require a secondary object */ - - second_object = acpi_ut_allocate_object_desc_dbg(module_name, - line_number, - component_id); - if (!second_object) { - acpi_ut_delete_object_desc(object); - return_PTR(NULL); - } - - second_object->common.type = ACPI_TYPE_LOCAL_EXTRA; - second_object->common.reference_count = 1; - - /* Link the second object to the first */ - - object->common.next_object = second_object; - break; - - default: - /* All others have no secondary object */ - break; - } - - /* Save the object type in the object descriptor */ - - object->common.type = (u8) type; - - /* Init the reference count */ - - object->common.reference_count = 1; - - /* Any per-type initialization should go here */ - - return_PTR(object); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_create_package_object - * - * PARAMETERS: Count - Number of package elements - * - * RETURN: Pointer to a new Package object, null on failure - * - * DESCRIPTION: Create a fully initialized package object - * - ******************************************************************************/ - -union acpi_operand_object *acpi_ut_create_package_object(u32 count) -{ - union acpi_operand_object *package_desc; - union acpi_operand_object **package_elements; - - ACPI_FUNCTION_TRACE_U32(ut_create_package_object, count); - - /* Create a new Package object */ - - package_desc = acpi_ut_create_internal_object(ACPI_TYPE_PACKAGE); - if (!package_desc) { - return_PTR(NULL); - } - - /* - * Create the element array. Count+1 allows the array to be null - * terminated. - */ - package_elements = ACPI_ALLOCATE_ZEROED(((acpi_size) count + - 1) * sizeof(void *)); - if (!package_elements) { - acpi_ut_remove_reference(package_desc); - return_PTR(NULL); - } - - package_desc->package.count = count; - package_desc->package.elements = package_elements; - return_PTR(package_desc); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_create_buffer_object - * - * PARAMETERS: buffer_size - Size of buffer to be created - * - * RETURN: Pointer to a new Buffer object, null on failure - * - * DESCRIPTION: Create a fully initialized buffer object - * - ******************************************************************************/ - -union acpi_operand_object *acpi_ut_create_buffer_object(acpi_size buffer_size) -{ - union acpi_operand_object *buffer_desc; - u8 *buffer = NULL; - - ACPI_FUNCTION_TRACE_U32(ut_create_buffer_object, buffer_size); - - /* Create a new Buffer object */ - - buffer_desc = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER); - if (!buffer_desc) { - return_PTR(NULL); - } - - /* Create an actual buffer only if size > 0 */ - - if (buffer_size > 0) { - - /* Allocate the actual buffer */ - - buffer = ACPI_ALLOCATE_ZEROED(buffer_size); - if (!buffer) { - ACPI_ERROR((AE_INFO, "Could not allocate size %X", - (u32) buffer_size)); - acpi_ut_remove_reference(buffer_desc); - return_PTR(NULL); - } - } - - /* Complete buffer object initialization */ - - buffer_desc->buffer.flags |= AOPOBJ_DATA_VALID; - buffer_desc->buffer.pointer = buffer; - buffer_desc->buffer.length = (u32) buffer_size; - - /* Return the new buffer descriptor */ - - return_PTR(buffer_desc); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_create_string_object - * - * PARAMETERS: string_size - Size of string to be created. Does not - * include NULL terminator, this is added - * automatically. - * - * RETURN: Pointer to a new String object - * - * DESCRIPTION: Create a fully initialized string object - * - ******************************************************************************/ - -union acpi_operand_object *acpi_ut_create_string_object(acpi_size string_size) -{ - union acpi_operand_object *string_desc; - char *string; - - ACPI_FUNCTION_TRACE_U32(ut_create_string_object, string_size); - - /* Create a new String object */ - - string_desc = acpi_ut_create_internal_object(ACPI_TYPE_STRING); - if (!string_desc) { - return_PTR(NULL); - } - - /* - * Allocate the actual string buffer -- (Size + 1) for NULL terminator. - * NOTE: Zero-length strings are NULL terminated - */ - string = ACPI_ALLOCATE_ZEROED(string_size + 1); - if (!string) { - ACPI_ERROR((AE_INFO, "Could not allocate size %X", - (u32) string_size)); - acpi_ut_remove_reference(string_desc); - return_PTR(NULL); - } - - /* Complete string object initialization */ - - string_desc->string.pointer = string; - string_desc->string.length = (u32) string_size; - - /* Return the new string descriptor */ - - return_PTR(string_desc); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_valid_internal_object - * - * PARAMETERS: Object - Object to be validated - * - * RETURN: TRUE if object is valid, FALSE otherwise - * - * DESCRIPTION: Validate a pointer to be an union acpi_operand_object - * - ******************************************************************************/ - -u8 acpi_ut_valid_internal_object(void *object) -{ - - ACPI_FUNCTION_NAME(ut_valid_internal_object); - - /* Check for a null pointer */ - - if (!object) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "**** Null Object Ptr\n")); - return (FALSE); - } - - /* Check the descriptor type field */ - - switch (ACPI_GET_DESCRIPTOR_TYPE(object)) { - case ACPI_DESC_TYPE_OPERAND: - - /* The object appears to be a valid union acpi_operand_object */ - - return (TRUE); - - default: - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "%p is not not an ACPI operand obj [%s]\n", - object, acpi_ut_get_descriptor_name(object))); - break; - } - - return (FALSE); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_allocate_object_desc_dbg - * - * PARAMETERS: module_name - Caller's module name (for error output) - * line_number - Caller's line number (for error output) - * component_id - Caller's component ID (for error output) - * - * RETURN: Pointer to newly allocated object descriptor. Null on error - * - * DESCRIPTION: Allocate a new object descriptor. Gracefully handle - * error conditions. - * - ******************************************************************************/ - -void *acpi_ut_allocate_object_desc_dbg(const char *module_name, - u32 line_number, u32 component_id) -{ - union acpi_operand_object *object; - - ACPI_FUNCTION_TRACE(ut_allocate_object_desc_dbg); - - object = acpi_os_acquire_object(acpi_gbl_operand_cache); - if (!object) { - ACPI_ERROR((module_name, line_number, - "Could not allocate an object descriptor")); - - return_PTR(NULL); - } - - /* Mark the descriptor type */ - - memset(object, 0, sizeof(union acpi_operand_object)); - ACPI_SET_DESCRIPTOR_TYPE(object, ACPI_DESC_TYPE_OPERAND); - - ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "%p Size %X\n", - object, (u32) sizeof(union acpi_operand_object))); - - return_PTR(object); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_delete_object_desc - * - * PARAMETERS: Object - An Acpi internal object to be deleted - * - * RETURN: None. - * - * DESCRIPTION: Free an ACPI object descriptor or add it to the object cache - * - ******************************************************************************/ - -void acpi_ut_delete_object_desc(union acpi_operand_object *object) -{ - ACPI_FUNCTION_TRACE_PTR(ut_delete_object_desc, object); - - /* Object must be an union acpi_operand_object */ - - if (ACPI_GET_DESCRIPTOR_TYPE(object) != ACPI_DESC_TYPE_OPERAND) { - ACPI_ERROR((AE_INFO, - "%p is not an ACPI Operand object [%s]", object, - acpi_ut_get_descriptor_name(object))); - return_VOID; - } - - (void)acpi_os_release_object(acpi_gbl_operand_cache, object); - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_get_simple_object_size - * - * PARAMETERS: internal_object - An ACPI operand object - * obj_length - Where the length is returned - * - * RETURN: Status - * - * DESCRIPTION: This function is called to determine the space required to - * contain a simple object for return to an external user. - * - * The length includes the object structure plus any additional - * needed space. - * - ******************************************************************************/ - -static acpi_status -acpi_ut_get_simple_object_size(union acpi_operand_object *internal_object, - acpi_size * obj_length) -{ - acpi_size length; - acpi_size size; - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE_PTR(ut_get_simple_object_size, internal_object); - - /* - * Handle a null object (Could be a uninitialized package - * element -- which is legal) - */ - if (!internal_object) { - *obj_length = sizeof(union acpi_object); - return_ACPI_STATUS(AE_OK); - } - - /* Start with the length of the Acpi object */ - - length = sizeof(union acpi_object); - - if (ACPI_GET_DESCRIPTOR_TYPE(internal_object) == ACPI_DESC_TYPE_NAMED) { - - /* Object is a named object (reference), just return the length */ - - *obj_length = ACPI_ROUND_UP_TO_NATIVE_WORD(length); - return_ACPI_STATUS(status); - } - - /* - * The final length depends on the object type - * Strings and Buffers are packed right up against the parent object and - * must be accessed bytewise or there may be alignment problems on - * certain processors - */ - switch (ACPI_GET_OBJECT_TYPE(internal_object)) { - case ACPI_TYPE_STRING: - - length += (acpi_size) internal_object->string.length + 1; - break; - - case ACPI_TYPE_BUFFER: - - length += (acpi_size) internal_object->buffer.length; - break; - - case ACPI_TYPE_INTEGER: - case ACPI_TYPE_PROCESSOR: - case ACPI_TYPE_POWER: - - /* No extra data for these types */ - - break; - - case ACPI_TYPE_LOCAL_REFERENCE: - - switch (internal_object->reference.class) { - case ACPI_REFCLASS_NAME: - - /* - * Get the actual length of the full pathname to this object. - * The reference will be converted to the pathname to the object - */ - size = - acpi_ns_get_pathname_length(internal_object-> - reference.node); - if (!size) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - length += ACPI_ROUND_UP_TO_NATIVE_WORD(size); - break; - - default: - - /* - * No other reference opcodes are supported. - * Notably, Locals and Args are not supported, but this may be - * required eventually. - */ - ACPI_ERROR((AE_INFO, - "Cannot convert to external object - " - "unsupported Reference Class [%s] %X in object %p", - acpi_ut_get_reference_name(internal_object), - internal_object->reference.class, - internal_object)); - status = AE_TYPE; - break; - } - break; - - default: - - ACPI_ERROR((AE_INFO, "Cannot convert to external object - " - "unsupported type [%s] %X in object %p", - acpi_ut_get_object_type_name(internal_object), - ACPI_GET_OBJECT_TYPE(internal_object), - internal_object)); - status = AE_TYPE; - break; - } - - /* - * Account for the space required by the object rounded up to the next - * multiple of the machine word size. This keeps each object aligned - * on a machine word boundary. (preventing alignment faults on some - * machines.) - */ - *obj_length = ACPI_ROUND_UP_TO_NATIVE_WORD(length); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_get_element_length - * - * PARAMETERS: acpi_pkg_callback - * - * RETURN: Status - * - * DESCRIPTION: Get the length of one package element. - * - ******************************************************************************/ - -static acpi_status -acpi_ut_get_element_length(u8 object_type, - union acpi_operand_object *source_object, - union acpi_generic_state *state, void *context) -{ - acpi_status status = AE_OK; - struct acpi_pkg_info *info = (struct acpi_pkg_info *)context; - acpi_size object_space; - - switch (object_type) { - case ACPI_COPY_TYPE_SIMPLE: - - /* - * Simple object - just get the size (Null object/entry is handled - * here also) and sum it into the running package length - */ - status = - acpi_ut_get_simple_object_size(source_object, - &object_space); - if (ACPI_FAILURE(status)) { - return (status); - } - - info->length += object_space; - break; - - case ACPI_COPY_TYPE_PACKAGE: - - /* Package object - nothing much to do here, let the walk handle it */ - - info->num_packages++; - state->pkg.this_target_obj = NULL; - break; - - default: - - /* No other types allowed */ - - return (AE_BAD_PARAMETER); - } - - return (status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_get_package_object_size - * - * PARAMETERS: internal_object - An ACPI internal object - * obj_length - Where the length is returned - * - * RETURN: Status - * - * DESCRIPTION: This function is called to determine the space required to - * contain a package object for return to an external user. - * - * This is moderately complex since a package contains other - * objects including packages. - * - ******************************************************************************/ - -static acpi_status -acpi_ut_get_package_object_size(union acpi_operand_object *internal_object, - acpi_size * obj_length) -{ - acpi_status status; - struct acpi_pkg_info info; - - ACPI_FUNCTION_TRACE_PTR(ut_get_package_object_size, internal_object); - - info.length = 0; - info.object_space = 0; - info.num_packages = 1; - - status = acpi_ut_walk_package_tree(internal_object, NULL, - acpi_ut_get_element_length, &info); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * We have handled all of the objects in all levels of the package. - * just add the length of the package objects themselves. - * Round up to the next machine word. - */ - info.length += ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object)) * - (acpi_size) info.num_packages; - - /* Return the total package length */ - - *obj_length = info.length; - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_get_object_size - * - * PARAMETERS: internal_object - An ACPI internal object - * obj_length - Where the length will be returned - * - * RETURN: Status - * - * DESCRIPTION: This function is called to determine the space required to - * contain an object for return to an API user. - * - ******************************************************************************/ - -acpi_status -acpi_ut_get_object_size(union acpi_operand_object *internal_object, - acpi_size * obj_length) -{ - acpi_status status; - - ACPI_FUNCTION_ENTRY(); - - if ((ACPI_GET_DESCRIPTOR_TYPE(internal_object) == - ACPI_DESC_TYPE_OPERAND) - && (ACPI_GET_OBJECT_TYPE(internal_object) == ACPI_TYPE_PACKAGE)) { - status = - acpi_ut_get_package_object_size(internal_object, - obj_length); - } else { - status = - acpi_ut_get_simple_object_size(internal_object, obj_length); - } - - return (status); -} diff --git a/drivers/acpi/utilities/utresrc.c b/drivers/acpi/utilities/utresrc.c deleted file mode 100644 index 0755c5cdbe18..000000000000 --- a/drivers/acpi/utilities/utresrc.c +++ /dev/null @@ -1,616 +0,0 @@ -/******************************************************************************* - * - * Module Name: utresrc - Resource management utilities - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include - -#define _COMPONENT ACPI_UTILITIES -ACPI_MODULE_NAME("utresrc") -#if defined(ACPI_DISASSEMBLER) || defined (ACPI_DEBUGGER) -/* - * Strings used to decode resource descriptors. - * Used by both the disasssembler and the debugger resource dump routines - */ -const char *acpi_gbl_bm_decode[] = { - "NotBusMaster", - "BusMaster" -}; - -const char *acpi_gbl_config_decode[] = { - "0 - Good Configuration", - "1 - Acceptable Configuration", - "2 - Suboptimal Configuration", - "3 - ***Invalid Configuration***", -}; - -const char *acpi_gbl_consume_decode[] = { - "ResourceProducer", - "ResourceConsumer" -}; - -const char *acpi_gbl_dec_decode[] = { - "PosDecode", - "SubDecode" -}; - -const char *acpi_gbl_he_decode[] = { - "Level", - "Edge" -}; - -const char *acpi_gbl_io_decode[] = { - "Decode10", - "Decode16" -}; - -const char *acpi_gbl_ll_decode[] = { - "ActiveHigh", - "ActiveLow" -}; - -const char *acpi_gbl_max_decode[] = { - "MaxNotFixed", - "MaxFixed" -}; - -const char *acpi_gbl_mem_decode[] = { - "NonCacheable", - "Cacheable", - "WriteCombining", - "Prefetchable" -}; - -const char *acpi_gbl_min_decode[] = { - "MinNotFixed", - "MinFixed" -}; - -const char *acpi_gbl_mtp_decode[] = { - "AddressRangeMemory", - "AddressRangeReserved", - "AddressRangeACPI", - "AddressRangeNVS" -}; - -const char *acpi_gbl_rng_decode[] = { - "InvalidRanges", - "NonISAOnlyRanges", - "ISAOnlyRanges", - "EntireRange" -}; - -const char *acpi_gbl_rw_decode[] = { - "ReadOnly", - "ReadWrite" -}; - -const char *acpi_gbl_shr_decode[] = { - "Exclusive", - "Shared" -}; - -const char *acpi_gbl_siz_decode[] = { - "Transfer8", - "Transfer8_16", - "Transfer16", - "InvalidSize" -}; - -const char *acpi_gbl_trs_decode[] = { - "DenseTranslation", - "SparseTranslation" -}; - -const char *acpi_gbl_ttp_decode[] = { - "TypeStatic", - "TypeTranslation" -}; - -const char *acpi_gbl_typ_decode[] = { - "Compatibility", - "TypeA", - "TypeB", - "TypeF" -}; - -#endif - -/* - * Base sizes of the raw AML resource descriptors, indexed by resource type. - * Zero indicates a reserved (and therefore invalid) resource type. - */ -const u8 acpi_gbl_resource_aml_sizes[] = { - /* Small descriptors */ - - 0, - 0, - 0, - 0, - ACPI_AML_SIZE_SMALL(struct aml_resource_irq), - ACPI_AML_SIZE_SMALL(struct aml_resource_dma), - ACPI_AML_SIZE_SMALL(struct aml_resource_start_dependent), - ACPI_AML_SIZE_SMALL(struct aml_resource_end_dependent), - ACPI_AML_SIZE_SMALL(struct aml_resource_io), - ACPI_AML_SIZE_SMALL(struct aml_resource_fixed_io), - 0, - 0, - 0, - 0, - ACPI_AML_SIZE_SMALL(struct aml_resource_vendor_small), - ACPI_AML_SIZE_SMALL(struct aml_resource_end_tag), - - /* Large descriptors */ - - 0, - ACPI_AML_SIZE_LARGE(struct aml_resource_memory24), - ACPI_AML_SIZE_LARGE(struct aml_resource_generic_register), - 0, - ACPI_AML_SIZE_LARGE(struct aml_resource_vendor_large), - ACPI_AML_SIZE_LARGE(struct aml_resource_memory32), - ACPI_AML_SIZE_LARGE(struct aml_resource_fixed_memory32), - ACPI_AML_SIZE_LARGE(struct aml_resource_address32), - ACPI_AML_SIZE_LARGE(struct aml_resource_address16), - ACPI_AML_SIZE_LARGE(struct aml_resource_extended_irq), - ACPI_AML_SIZE_LARGE(struct aml_resource_address64), - ACPI_AML_SIZE_LARGE(struct aml_resource_extended_address64) -}; - -/* - * Resource types, used to validate the resource length field. - * The length of fixed-length types must match exactly, variable - * lengths must meet the minimum required length, etc. - * Zero indicates a reserved (and therefore invalid) resource type. - */ -static const u8 acpi_gbl_resource_types[] = { - /* Small descriptors */ - - 0, - 0, - 0, - 0, - ACPI_SMALL_VARIABLE_LENGTH, - ACPI_FIXED_LENGTH, - ACPI_SMALL_VARIABLE_LENGTH, - ACPI_FIXED_LENGTH, - ACPI_FIXED_LENGTH, - ACPI_FIXED_LENGTH, - 0, - 0, - 0, - 0, - ACPI_VARIABLE_LENGTH, - ACPI_FIXED_LENGTH, - - /* Large descriptors */ - - 0, - ACPI_FIXED_LENGTH, - ACPI_FIXED_LENGTH, - 0, - ACPI_VARIABLE_LENGTH, - ACPI_FIXED_LENGTH, - ACPI_FIXED_LENGTH, - ACPI_VARIABLE_LENGTH, - ACPI_VARIABLE_LENGTH, - ACPI_VARIABLE_LENGTH, - ACPI_VARIABLE_LENGTH, - ACPI_FIXED_LENGTH -}; - -/******************************************************************************* - * - * FUNCTION: acpi_ut_walk_aml_resources - * - * PARAMETERS: Aml - Pointer to the raw AML resource template - * aml_length - Length of the entire template - * user_function - Called once for each descriptor found. If - * NULL, a pointer to the end_tag is returned - * Context - Passed to user_function - * - * RETURN: Status - * - * DESCRIPTION: Walk a raw AML resource list(buffer). User function called - * once for each resource found. - * - ******************************************************************************/ - -acpi_status -acpi_ut_walk_aml_resources(u8 * aml, - acpi_size aml_length, - acpi_walk_aml_callback user_function, void **context) -{ - acpi_status status; - u8 *end_aml; - u8 resource_index; - u32 length; - u32 offset = 0; - - ACPI_FUNCTION_TRACE(ut_walk_aml_resources); - - /* The absolute minimum resource template is one end_tag descriptor */ - - if (aml_length < sizeof(struct aml_resource_end_tag)) { - return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG); - } - - /* Point to the end of the resource template buffer */ - - end_aml = aml + aml_length; - - /* Walk the byte list, abort on any invalid descriptor type or length */ - - while (aml < end_aml) { - - /* Validate the Resource Type and Resource Length */ - - status = acpi_ut_validate_resource(aml, &resource_index); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Get the length of this descriptor */ - - length = acpi_ut_get_descriptor_length(aml); - - /* Invoke the user function */ - - if (user_function) { - status = - user_function(aml, length, offset, resource_index, - context); - if (ACPI_FAILURE(status)) { - return (status); - } - } - - /* An end_tag descriptor terminates this resource template */ - - if (acpi_ut_get_resource_type(aml) == - ACPI_RESOURCE_NAME_END_TAG) { - /* - * There must be at least one more byte in the buffer for - * the 2nd byte of the end_tag - */ - if ((aml + 1) >= end_aml) { - return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG); - } - - /* Return the pointer to the end_tag if requested */ - - if (!user_function) { - *context = aml; - } - - /* Normal exit */ - - return_ACPI_STATUS(AE_OK); - } - - aml += length; - offset += length; - } - - /* Did not find an end_tag descriptor */ - - return (AE_AML_NO_RESOURCE_END_TAG); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_validate_resource - * - * PARAMETERS: Aml - Pointer to the raw AML resource descriptor - * return_index - Where the resource index is returned. NULL - * if the index is not required. - * - * RETURN: Status, and optionally the Index into the global resource tables - * - * DESCRIPTION: Validate an AML resource descriptor by checking the Resource - * Type and Resource Length. Returns an index into the global - * resource information/dispatch tables for later use. - * - ******************************************************************************/ - -acpi_status acpi_ut_validate_resource(void *aml, u8 * return_index) -{ - u8 resource_type; - u8 resource_index; - acpi_rs_length resource_length; - acpi_rs_length minimum_resource_length; - - ACPI_FUNCTION_ENTRY(); - - /* - * 1) Validate the resource_type field (Byte 0) - */ - resource_type = ACPI_GET8(aml); - - /* - * Byte 0 contains the descriptor name (Resource Type) - * Examine the large/small bit in the resource header - */ - if (resource_type & ACPI_RESOURCE_NAME_LARGE) { - - /* Verify the large resource type (name) against the max */ - - if (resource_type > ACPI_RESOURCE_NAME_LARGE_MAX) { - return (AE_AML_INVALID_RESOURCE_TYPE); - } - - /* - * Large Resource Type -- bits 6:0 contain the name - * Translate range 0x80-0x8B to index range 0x10-0x1B - */ - resource_index = (u8) (resource_type - 0x70); - } else { - /* - * Small Resource Type -- bits 6:3 contain the name - * Shift range to index range 0x00-0x0F - */ - resource_index = (u8) - ((resource_type & ACPI_RESOURCE_NAME_SMALL_MASK) >> 3); - } - - /* Check validity of the resource type, zero indicates name is invalid */ - - if (!acpi_gbl_resource_types[resource_index]) { - return (AE_AML_INVALID_RESOURCE_TYPE); - } - - /* - * 2) Validate the resource_length field. This ensures that the length - * is at least reasonable, and guarantees that it is non-zero. - */ - resource_length = acpi_ut_get_resource_length(aml); - minimum_resource_length = acpi_gbl_resource_aml_sizes[resource_index]; - - /* Validate based upon the type of resource - fixed length or variable */ - - switch (acpi_gbl_resource_types[resource_index]) { - case ACPI_FIXED_LENGTH: - - /* Fixed length resource, length must match exactly */ - - if (resource_length != minimum_resource_length) { - return (AE_AML_BAD_RESOURCE_LENGTH); - } - break; - - case ACPI_VARIABLE_LENGTH: - - /* Variable length resource, length must be at least the minimum */ - - if (resource_length < minimum_resource_length) { - return (AE_AML_BAD_RESOURCE_LENGTH); - } - break; - - case ACPI_SMALL_VARIABLE_LENGTH: - - /* Small variable length resource, length can be (Min) or (Min-1) */ - - if ((resource_length > minimum_resource_length) || - (resource_length < (minimum_resource_length - 1))) { - return (AE_AML_BAD_RESOURCE_LENGTH); - } - break; - - default: - - /* Shouldn't happen (because of validation earlier), but be sure */ - - return (AE_AML_INVALID_RESOURCE_TYPE); - } - - /* Optionally return the resource table index */ - - if (return_index) { - *return_index = resource_index; - } - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_get_resource_type - * - * PARAMETERS: Aml - Pointer to the raw AML resource descriptor - * - * RETURN: The Resource Type with no extraneous bits (except the - * Large/Small descriptor bit -- this is left alone) - * - * DESCRIPTION: Extract the Resource Type/Name from the first byte of - * a resource descriptor. - * - ******************************************************************************/ - -u8 acpi_ut_get_resource_type(void *aml) -{ - ACPI_FUNCTION_ENTRY(); - - /* - * Byte 0 contains the descriptor name (Resource Type) - * Examine the large/small bit in the resource header - */ - if (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_LARGE) { - - /* Large Resource Type -- bits 6:0 contain the name */ - - return (ACPI_GET8(aml)); - } else { - /* Small Resource Type -- bits 6:3 contain the name */ - - return ((u8) (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_SMALL_MASK)); - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_get_resource_length - * - * PARAMETERS: Aml - Pointer to the raw AML resource descriptor - * - * RETURN: Byte Length - * - * DESCRIPTION: Get the "Resource Length" of a raw AML descriptor. By - * definition, this does not include the size of the descriptor - * header or the length field itself. - * - ******************************************************************************/ - -u16 acpi_ut_get_resource_length(void *aml) -{ - acpi_rs_length resource_length; - - ACPI_FUNCTION_ENTRY(); - - /* - * Byte 0 contains the descriptor name (Resource Type) - * Examine the large/small bit in the resource header - */ - if (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_LARGE) { - - /* Large Resource type -- bytes 1-2 contain the 16-bit length */ - - ACPI_MOVE_16_TO_16(&resource_length, ACPI_ADD_PTR(u8, aml, 1)); - - } else { - /* Small Resource type -- bits 2:0 of byte 0 contain the length */ - - resource_length = (u16) (ACPI_GET8(aml) & - ACPI_RESOURCE_NAME_SMALL_LENGTH_MASK); - } - - return (resource_length); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_get_resource_header_length - * - * PARAMETERS: Aml - Pointer to the raw AML resource descriptor - * - * RETURN: Length of the AML header (depends on large/small descriptor) - * - * DESCRIPTION: Get the length of the header for this resource. - * - ******************************************************************************/ - -u8 acpi_ut_get_resource_header_length(void *aml) -{ - ACPI_FUNCTION_ENTRY(); - - /* Examine the large/small bit in the resource header */ - - if (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_LARGE) { - return (sizeof(struct aml_resource_large_header)); - } else { - return (sizeof(struct aml_resource_small_header)); - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_get_descriptor_length - * - * PARAMETERS: Aml - Pointer to the raw AML resource descriptor - * - * RETURN: Byte length - * - * DESCRIPTION: Get the total byte length of a raw AML descriptor, including the - * length of the descriptor header and the length field itself. - * Used to walk descriptor lists. - * - ******************************************************************************/ - -u32 acpi_ut_get_descriptor_length(void *aml) -{ - ACPI_FUNCTION_ENTRY(); - - /* - * Get the Resource Length (does not include header length) and add - * the header length (depends on if this is a small or large resource) - */ - return (acpi_ut_get_resource_length(aml) + - acpi_ut_get_resource_header_length(aml)); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_get_resource_end_tag - * - * PARAMETERS: obj_desc - The resource template buffer object - * end_tag - Where the pointer to the end_tag is returned - * - * RETURN: Status, pointer to the end tag - * - * DESCRIPTION: Find the end_tag resource descriptor in an AML resource template - * Note: allows a buffer length of zero. - * - ******************************************************************************/ - -acpi_status -acpi_ut_get_resource_end_tag(union acpi_operand_object * obj_desc, - u8 ** end_tag) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ut_get_resource_end_tag); - - /* Allow a buffer length of zero */ - - if (!obj_desc->buffer.length) { - *end_tag = obj_desc->buffer.pointer; - return_ACPI_STATUS(AE_OK); - } - - /* Validate the template and get a pointer to the end_tag */ - - status = acpi_ut_walk_aml_resources(obj_desc->buffer.pointer, - obj_desc->buffer.length, NULL, - (void **)end_tag); - - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/utilities/utstate.c b/drivers/acpi/utilities/utstate.c deleted file mode 100644 index 54c3461e2f26..000000000000 --- a/drivers/acpi/utilities/utstate.c +++ /dev/null @@ -1,347 +0,0 @@ -/******************************************************************************* - * - * Module Name: utstate - state object support procedures - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include - -#define _COMPONENT ACPI_UTILITIES -ACPI_MODULE_NAME("utstate") - -/******************************************************************************* - * - * FUNCTION: acpi_ut_create_pkg_state_and_push - * - * PARAMETERS: Object - Object to be added to the new state - * Action - Increment/Decrement - * state_list - List the state will be added to - * - * RETURN: Status - * - * DESCRIPTION: Create a new state and push it - * - ******************************************************************************/ -acpi_status -acpi_ut_create_pkg_state_and_push(void *internal_object, - void *external_object, - u16 index, - union acpi_generic_state **state_list) -{ - union acpi_generic_state *state; - - ACPI_FUNCTION_ENTRY(); - - state = - acpi_ut_create_pkg_state(internal_object, external_object, index); - if (!state) { - return (AE_NO_MEMORY); - } - - acpi_ut_push_generic_state(state_list, state); - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_push_generic_state - * - * PARAMETERS: list_head - Head of the state stack - * State - State object to push - * - * RETURN: None - * - * DESCRIPTION: Push a state object onto a state stack - * - ******************************************************************************/ - -void -acpi_ut_push_generic_state(union acpi_generic_state **list_head, - union acpi_generic_state *state) -{ - ACPI_FUNCTION_TRACE(ut_push_generic_state); - - /* Push the state object onto the front of the list (stack) */ - - state->common.next = *list_head; - *list_head = state; - - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_pop_generic_state - * - * PARAMETERS: list_head - Head of the state stack - * - * RETURN: The popped state object - * - * DESCRIPTION: Pop a state object from a state stack - * - ******************************************************************************/ - -union acpi_generic_state *acpi_ut_pop_generic_state(union acpi_generic_state - **list_head) -{ - union acpi_generic_state *state; - - ACPI_FUNCTION_TRACE(ut_pop_generic_state); - - /* Remove the state object at the head of the list (stack) */ - - state = *list_head; - if (state) { - - /* Update the list head */ - - *list_head = state->common.next; - } - - return_PTR(state); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_create_generic_state - * - * PARAMETERS: None - * - * RETURN: The new state object. NULL on failure. - * - * DESCRIPTION: Create a generic state object. Attempt to obtain one from - * the global state cache; If none available, create a new one. - * - ******************************************************************************/ - -union acpi_generic_state *acpi_ut_create_generic_state(void) -{ - union acpi_generic_state *state; - - ACPI_FUNCTION_ENTRY(); - - state = acpi_os_acquire_object(acpi_gbl_state_cache); - if (state) { - - /* Initialize */ - memset(state, 0, sizeof(union acpi_generic_state)); - state->common.descriptor_type = ACPI_DESC_TYPE_STATE; - } - - return (state); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_create_thread_state - * - * PARAMETERS: None - * - * RETURN: New Thread State. NULL on failure - * - * DESCRIPTION: Create a "Thread State" - a flavor of the generic state used - * to track per-thread info during method execution - * - ******************************************************************************/ - -struct acpi_thread_state *acpi_ut_create_thread_state(void) -{ - union acpi_generic_state *state; - - ACPI_FUNCTION_TRACE(ut_create_thread_state); - - /* Create the generic state object */ - - state = acpi_ut_create_generic_state(); - if (!state) { - return_PTR(NULL); - } - - /* Init fields specific to the update struct */ - - state->common.descriptor_type = ACPI_DESC_TYPE_STATE_THREAD; - state->thread.thread_id = acpi_os_get_thread_id(); - - /* Check for invalid thread ID - zero is very bad, it will break things */ - - if (!state->thread.thread_id) { - ACPI_ERROR((AE_INFO, "Invalid zero ID from AcpiOsGetThreadId")); - state->thread.thread_id = (acpi_thread_id) 1; - } - - return_PTR((struct acpi_thread_state *)state); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_create_update_state - * - * PARAMETERS: Object - Initial Object to be installed in the state - * Action - Update action to be performed - * - * RETURN: New state object, null on failure - * - * DESCRIPTION: Create an "Update State" - a flavor of the generic state used - * to update reference counts and delete complex objects such - * as packages. - * - ******************************************************************************/ - -union acpi_generic_state *acpi_ut_create_update_state(union acpi_operand_object - *object, u16 action) -{ - union acpi_generic_state *state; - - ACPI_FUNCTION_TRACE_PTR(ut_create_update_state, object); - - /* Create the generic state object */ - - state = acpi_ut_create_generic_state(); - if (!state) { - return_PTR(NULL); - } - - /* Init fields specific to the update struct */ - - state->common.descriptor_type = ACPI_DESC_TYPE_STATE_UPDATE; - state->update.object = object; - state->update.value = action; - - return_PTR(state); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_create_pkg_state - * - * PARAMETERS: Object - Initial Object to be installed in the state - * Action - Update action to be performed - * - * RETURN: New state object, null on failure - * - * DESCRIPTION: Create a "Package State" - * - ******************************************************************************/ - -union acpi_generic_state *acpi_ut_create_pkg_state(void *internal_object, - void *external_object, - u16 index) -{ - union acpi_generic_state *state; - - ACPI_FUNCTION_TRACE_PTR(ut_create_pkg_state, internal_object); - - /* Create the generic state object */ - - state = acpi_ut_create_generic_state(); - if (!state) { - return_PTR(NULL); - } - - /* Init fields specific to the update struct */ - - state->common.descriptor_type = ACPI_DESC_TYPE_STATE_PACKAGE; - state->pkg.source_object = (union acpi_operand_object *)internal_object; - state->pkg.dest_object = external_object; - state->pkg.index = index; - state->pkg.num_packages = 1; - - return_PTR(state); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_create_control_state - * - * PARAMETERS: None - * - * RETURN: New state object, null on failure - * - * DESCRIPTION: Create a "Control State" - a flavor of the generic state used - * to support nested IF/WHILE constructs in the AML. - * - ******************************************************************************/ - -union acpi_generic_state *acpi_ut_create_control_state(void) -{ - union acpi_generic_state *state; - - ACPI_FUNCTION_TRACE(ut_create_control_state); - - /* Create the generic state object */ - - state = acpi_ut_create_generic_state(); - if (!state) { - return_PTR(NULL); - } - - /* Init fields specific to the control struct */ - - state->common.descriptor_type = ACPI_DESC_TYPE_STATE_CONTROL; - state->common.state = ACPI_CONTROL_CONDITIONAL_EXECUTING; - - return_PTR(state); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_delete_generic_state - * - * PARAMETERS: State - The state object to be deleted - * - * RETURN: None - * - * DESCRIPTION: Release a state object to the state cache. NULL state objects - * are ignored. - * - ******************************************************************************/ - -void acpi_ut_delete_generic_state(union acpi_generic_state *state) -{ - ACPI_FUNCTION_TRACE(ut_delete_generic_state); - - /* Ignore null state */ - - if (state) { - (void)acpi_os_release_object(acpi_gbl_state_cache, state); - } - return_VOID; -} diff --git a/drivers/acpi/utilities/utxface.c b/drivers/acpi/utilities/utxface.c deleted file mode 100644 index 5b27724a2749..000000000000 --- a/drivers/acpi/utilities/utxface.c +++ /dev/null @@ -1,512 +0,0 @@ -/****************************************************************************** - * - * Module Name: utxface - External interfaces for "global" ACPI functions - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include -#include -#include -#include -#include -#include - -#define _COMPONENT ACPI_UTILITIES -ACPI_MODULE_NAME("utxface") - -#ifndef ACPI_ASL_COMPILER -/******************************************************************************* - * - * FUNCTION: acpi_initialize_subsystem - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Initializes all global variables. This is the first function - * called, so any early initialization belongs here. - * - ******************************************************************************/ -acpi_status __init acpi_initialize_subsystem(void) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_initialize_subsystem); - - acpi_gbl_startup_flags = ACPI_SUBSYSTEM_INITIALIZE; - ACPI_DEBUG_EXEC(acpi_ut_init_stack_ptr_trace()); - - /* Initialize the OS-Dependent layer */ - - status = acpi_os_initialize(); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, "During OSL initialization")); - return_ACPI_STATUS(status); - } - - /* Initialize all globals used by the subsystem */ - - status = acpi_ut_init_globals(); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "During initialization of globals")); - return_ACPI_STATUS(status); - } - - /* Create the default mutex objects */ - - status = acpi_ut_mutex_initialize(); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "During Global Mutex creation")); - return_ACPI_STATUS(status); - } - - /* - * Initialize the namespace manager and - * the root of the namespace tree - */ - status = acpi_ns_root_initialize(); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "During Namespace initialization")); - return_ACPI_STATUS(status); - } - - /* If configured, initialize the AML debugger */ - - ACPI_DEBUGGER_EXEC(status = acpi_db_initialize()); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_enable_subsystem - * - * PARAMETERS: Flags - Init/enable Options - * - * RETURN: Status - * - * DESCRIPTION: Completes the subsystem initialization including hardware. - * Puts system into ACPI mode if it isn't already. - * - ******************************************************************************/ -acpi_status acpi_enable_subsystem(u32 flags) -{ - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(acpi_enable_subsystem); - - /* Enable ACPI mode */ - - if (!(flags & ACPI_NO_ACPI_ENABLE)) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "[Init] Going into ACPI mode\n")); - - acpi_gbl_original_mode = acpi_hw_get_mode(); - - status = acpi_enable(); - if (ACPI_FAILURE(status)) { - ACPI_WARNING((AE_INFO, "AcpiEnable failed")); - return_ACPI_STATUS(status); - } - } - - /* - * Obtain a permanent mapping for the FACS. This is required for the - * Global Lock and the Firmware Waking Vector - */ - status = acpi_tb_initialize_facs(); - if (ACPI_FAILURE(status)) { - ACPI_WARNING((AE_INFO, "Could not map the FACS table")); - return_ACPI_STATUS(status); - } - - /* - * Install the default op_region handlers. These are installed unless - * other handlers have already been installed via the - * install_address_space_handler interface. - */ - if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "[Init] Installing default address space handlers\n")); - - status = acpi_ev_install_region_handlers(); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - - /* - * Initialize ACPI Event handling (Fixed and General Purpose) - * - * Note1: We must have the hardware and events initialized before we can - * execute any control methods safely. Any control method can require - * ACPI hardware support, so the hardware must be fully initialized before - * any method execution! - * - * Note2: Fixed events are initialized and enabled here. GPEs are - * initialized, but cannot be enabled until after the hardware is - * completely initialized (SCI and global_lock activated) - */ - if (!(flags & ACPI_NO_EVENT_INIT)) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "[Init] Initializing ACPI events\n")); - - status = acpi_ev_initialize_events(); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - - /* - * Install the SCI handler and Global Lock handler. This completes the - * hardware initialization. - */ - if (!(flags & ACPI_NO_HANDLER_INIT)) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "[Init] Installing SCI/GL handlers\n")); - - status = acpi_ev_install_xrupt_handlers(); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_enable_subsystem) - -/******************************************************************************* - * - * FUNCTION: acpi_initialize_objects - * - * PARAMETERS: Flags - Init/enable Options - * - * RETURN: Status - * - * DESCRIPTION: Completes namespace initialization by initializing device - * objects and executing AML code for Regions, buffers, etc. - * - ******************************************************************************/ -acpi_status acpi_initialize_objects(u32 flags) -{ - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(acpi_initialize_objects); - - /* - * Run all _REG methods - * - * Note: Any objects accessed by the _REG methods will be automatically - * initialized, even if they contain executable AML (see the call to - * acpi_ns_initialize_objects below). - */ - if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "[Init] Executing _REG OpRegion methods\n")); - - status = acpi_ev_initialize_op_regions(); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - - /* - * Initialize the objects that remain uninitialized. This runs the - * executable AML that may be part of the declaration of these objects: - * operation_regions, buffer_fields, Buffers, and Packages. - */ - if (!(flags & ACPI_NO_OBJECT_INIT)) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "[Init] Completing Initialization of ACPI Objects\n")); - - status = acpi_ns_initialize_objects(); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - - /* - * Initialize all device objects in the namespace. This runs the device - * _STA and _INI methods. - */ - if (!(flags & ACPI_NO_DEVICE_INIT)) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "[Init] Initializing ACPI Devices\n")); - - status = acpi_ns_initialize_devices(); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - - /* - * Complete the GPE initialization for the GPE blocks defined in the FADT - * (GPE block 0 and 1). - * - * Note1: This is where the _PRW methods are executed for the GPEs. These - * methods can only be executed after the SCI and Global Lock handlers are - * installed and initialized. - * - * Note2: Currently, there seems to be no need to run the _REG methods - * before execution of the _PRW methods and enabling of the GPEs. - */ - if (!(flags & ACPI_NO_EVENT_INIT)) { - status = acpi_ev_install_fadt_gpes(); - if (ACPI_FAILURE(status)) - return (status); - } - - /* - * Empty the caches (delete the cached objects) on the assumption that - * the table load filled them up more than they will be at runtime -- - * thus wasting non-paged memory. - */ - status = acpi_purge_cached_objects(); - - acpi_gbl_startup_flags |= ACPI_INITIALIZED_OK; - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_initialize_objects) - -#endif -/******************************************************************************* - * - * FUNCTION: acpi_terminate - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Shutdown the ACPI subsystem. Release all resources. - * - ******************************************************************************/ -acpi_status acpi_terminate(void) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_terminate); - - /* Terminate the AML Debugger if present */ - - ACPI_DEBUGGER_EXEC(acpi_gbl_db_terminate_threads = TRUE); - - /* Shutdown and free all resources */ - - acpi_ut_subsystem_shutdown(); - - /* Free the mutex objects */ - - acpi_ut_mutex_terminate(); - -#ifdef ACPI_DEBUGGER - - /* Shut down the debugger */ - - acpi_db_terminate(); -#endif - - /* Now we can shutdown the OS-dependent layer */ - - status = acpi_os_terminate(); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_terminate) -#ifndef ACPI_ASL_COMPILER -#ifdef ACPI_FUTURE_USAGE -/******************************************************************************* - * - * FUNCTION: acpi_subsystem_status - * - * PARAMETERS: None - * - * RETURN: Status of the ACPI subsystem - * - * DESCRIPTION: Other drivers that use the ACPI subsystem should call this - * before making any other calls, to ensure the subsystem - * initialized successfully. - * - ******************************************************************************/ -acpi_status acpi_subsystem_status(void) -{ - - if (acpi_gbl_startup_flags & ACPI_INITIALIZED_OK) { - return (AE_OK); - } else { - return (AE_ERROR); - } -} - -ACPI_EXPORT_SYMBOL(acpi_subsystem_status) - -/******************************************************************************* - * - * FUNCTION: acpi_get_system_info - * - * PARAMETERS: out_buffer - A buffer to receive the resources for the - * device - * - * RETURN: Status - the status of the call - * - * DESCRIPTION: This function is called to get information about the current - * state of the ACPI subsystem. It will return system information - * in the out_buffer. - * - * If the function fails an appropriate status will be returned - * and the value of out_buffer is undefined. - * - ******************************************************************************/ -acpi_status acpi_get_system_info(struct acpi_buffer * out_buffer) -{ - struct acpi_system_info *info_ptr; - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_get_system_info); - - /* Parameter validation */ - - status = acpi_ut_validate_buffer(out_buffer); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Validate/Allocate/Clear caller buffer */ - - status = - acpi_ut_initialize_buffer(out_buffer, - sizeof(struct acpi_system_info)); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * Populate the return buffer - */ - info_ptr = (struct acpi_system_info *)out_buffer->pointer; - - info_ptr->acpi_ca_version = ACPI_CA_VERSION; - - /* System flags (ACPI capabilities) */ - - info_ptr->flags = ACPI_SYS_MODE_ACPI; - - /* Timer resolution - 24 or 32 bits */ - - if (acpi_gbl_FADT.flags & ACPI_FADT_32BIT_TIMER) { - info_ptr->timer_resolution = 24; - } else { - info_ptr->timer_resolution = 32; - } - - /* Clear the reserved fields */ - - info_ptr->reserved1 = 0; - info_ptr->reserved2 = 0; - - /* Current debug levels */ - - info_ptr->debug_layer = acpi_dbg_layer; - info_ptr->debug_level = acpi_dbg_level; - - return_ACPI_STATUS(AE_OK); -} - -ACPI_EXPORT_SYMBOL(acpi_get_system_info) - -/***************************************************************************** - * - * FUNCTION: acpi_install_initialization_handler - * - * PARAMETERS: Handler - Callback procedure - * Function - Not (currently) used, see below - * - * RETURN: Status - * - * DESCRIPTION: Install an initialization handler - * - * TBD: When a second function is added, must save the Function also. - * - ****************************************************************************/ -acpi_status -acpi_install_initialization_handler(acpi_init_handler handler, u32 function) -{ - - if (!handler) { - return (AE_BAD_PARAMETER); - } - - if (acpi_gbl_init_handler) { - return (AE_ALREADY_EXISTS); - } - - acpi_gbl_init_handler = handler; - return AE_OK; -} - -ACPI_EXPORT_SYMBOL(acpi_install_initialization_handler) -#endif /* ACPI_FUTURE_USAGE */ -/***************************************************************************** - * - * FUNCTION: acpi_purge_cached_objects - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Empty all caches (delete the cached objects) - * - ****************************************************************************/ -acpi_status acpi_purge_cached_objects(void) -{ - ACPI_FUNCTION_TRACE(acpi_purge_cached_objects); - - (void)acpi_os_purge_cache(acpi_gbl_state_cache); - (void)acpi_os_purge_cache(acpi_gbl_operand_cache); - (void)acpi_os_purge_cache(acpi_gbl_ps_node_cache); - (void)acpi_os_purge_cache(acpi_gbl_ps_node_ext_cache); - return_ACPI_STATUS(AE_OK); -} - -ACPI_EXPORT_SYMBOL(acpi_purge_cached_objects) -#endif diff --git a/drivers/acpi/wakeup.c b/drivers/acpi/wakeup.c new file mode 100644 index 000000000000..2d34806d45dd --- /dev/null +++ b/drivers/acpi/wakeup.c @@ -0,0 +1,167 @@ +/* + * wakeup.c - support wakeup devices + * Copyright (C) 2004 Li Shaohua + */ + +#include +#include +#include +#include +#include +#include "sleep.h" + +#define _COMPONENT ACPI_SYSTEM_COMPONENT +ACPI_MODULE_NAME("wakeup_devices") + +extern struct list_head acpi_wakeup_device_list; +extern spinlock_t acpi_device_lock; + +/** + * acpi_enable_wakeup_device_prep - prepare wakeup devices + * @sleep_state: ACPI state + * Enable all wakup devices power if the devices' wakeup level + * is higher than requested sleep level + */ + +void acpi_enable_wakeup_device_prep(u8 sleep_state) +{ + struct list_head *node, *next; + + spin_lock(&acpi_device_lock); + list_for_each_safe(node, next, &acpi_wakeup_device_list) { + struct acpi_device *dev = container_of(node, + struct acpi_device, + wakeup_list); + + if (!dev->wakeup.flags.valid || + !dev->wakeup.state.enabled || + (sleep_state > (u32) dev->wakeup.sleep_state)) + continue; + + spin_unlock(&acpi_device_lock); + acpi_enable_wakeup_device_power(dev, sleep_state); + spin_lock(&acpi_device_lock); + } + spin_unlock(&acpi_device_lock); +} + +/** + * acpi_enable_wakeup_device - enable wakeup devices + * @sleep_state: ACPI state + * Enable all wakup devices's GPE + */ +void acpi_enable_wakeup_device(u8 sleep_state) +{ + struct list_head *node, *next; + + /* + * Caution: this routine must be invoked when interrupt is disabled + * Refer ACPI2.0: P212 + */ + spin_lock(&acpi_device_lock); + list_for_each_safe(node, next, &acpi_wakeup_device_list) { + struct acpi_device *dev = + container_of(node, struct acpi_device, wakeup_list); + + if (!dev->wakeup.flags.valid) + continue; + + /* If users want to disable run-wake GPE, + * we only disable it for wake and leave it for runtime + */ + if ((!dev->wakeup.state.enabled && !dev->wakeup.flags.prepared) + || sleep_state > (u32) dev->wakeup.sleep_state) { + if (dev->wakeup.flags.run_wake) { + spin_unlock(&acpi_device_lock); + /* set_gpe_type will disable GPE, leave it like that */ + acpi_set_gpe_type(dev->wakeup.gpe_device, + dev->wakeup.gpe_number, + ACPI_GPE_TYPE_RUNTIME); + spin_lock(&acpi_device_lock); + } + continue; + } + spin_unlock(&acpi_device_lock); + if (!dev->wakeup.flags.run_wake) + acpi_enable_gpe(dev->wakeup.gpe_device, + dev->wakeup.gpe_number); + spin_lock(&acpi_device_lock); + } + spin_unlock(&acpi_device_lock); +} + +/** + * acpi_disable_wakeup_device - disable devices' wakeup capability + * @sleep_state: ACPI state + * Disable all wakup devices's GPE and wakeup capability + */ +void acpi_disable_wakeup_device(u8 sleep_state) +{ + struct list_head *node, *next; + + spin_lock(&acpi_device_lock); + list_for_each_safe(node, next, &acpi_wakeup_device_list) { + struct acpi_device *dev = + container_of(node, struct acpi_device, wakeup_list); + + if (!dev->wakeup.flags.valid) + continue; + + if ((!dev->wakeup.state.enabled && !dev->wakeup.flags.prepared) + || sleep_state > (u32) dev->wakeup.sleep_state) { + if (dev->wakeup.flags.run_wake) { + spin_unlock(&acpi_device_lock); + acpi_set_gpe_type(dev->wakeup.gpe_device, + dev->wakeup.gpe_number, + ACPI_GPE_TYPE_WAKE_RUN); + /* Re-enable it, since set_gpe_type will disable it */ + acpi_enable_gpe(dev->wakeup.gpe_device, + dev->wakeup.gpe_number); + spin_lock(&acpi_device_lock); + } + continue; + } + + spin_unlock(&acpi_device_lock); + acpi_disable_wakeup_device_power(dev); + /* Never disable run-wake GPE */ + if (!dev->wakeup.flags.run_wake) { + acpi_disable_gpe(dev->wakeup.gpe_device, + dev->wakeup.gpe_number); + acpi_clear_gpe(dev->wakeup.gpe_device, + dev->wakeup.gpe_number, ACPI_NOT_ISR); + } + spin_lock(&acpi_device_lock); + } + spin_unlock(&acpi_device_lock); +} + +static int __init acpi_wakeup_device_init(void) +{ + struct list_head *node, *next; + + if (acpi_disabled) + return 0; + + spin_lock(&acpi_device_lock); + list_for_each_safe(node, next, &acpi_wakeup_device_list) { + struct acpi_device *dev = container_of(node, + struct acpi_device, + wakeup_list); + /* In case user doesn't load button driver */ + if (!dev->wakeup.flags.run_wake || dev->wakeup.state.enabled) + continue; + spin_unlock(&acpi_device_lock); + acpi_set_gpe_type(dev->wakeup.gpe_device, + dev->wakeup.gpe_number, + ACPI_GPE_TYPE_WAKE_RUN); + acpi_enable_gpe(dev->wakeup.gpe_device, + dev->wakeup.gpe_number); + dev->wakeup.state.enabled = 1; + spin_lock(&acpi_device_lock); + } + spin_unlock(&acpi_device_lock); + return 0; +} + +late_initcall(acpi_wakeup_device_init);