obj-$(CONFIG_PPC64) += setup_64.o binfmt_elf32.o sys_ppc32.o \
signal_64.o ptrace32.o systbl.o \
paca.o ioctl32.o cpu_setup_power4.o \
- firmware.o
+ firmware.o sysfs.o
obj-$(CONFIG_ALTIVEC) += vecemu.o vector.o
obj-$(CONFIG_POWER4) += idle_power4.o
obj-$(CONFIG_PPC_OF) += of_device.o
-obj-$(CONFIG_PPC_RTAS) += rtas.o
+procfs-$(CONFIG_PPC64) := proc_ppc64.o
+obj-$(CONFIG_PROC_FS) += $(procfs-y)
+rtaspci-$(CONFIG_PPC64) := rtas_pci.o
+obj-$(CONFIG_PPC_RTAS) += rtas.o $(rtaspci-y)
obj-$(CONFIG_RTAS_FLASH) += rtas_flash.o
obj-$(CONFIG_RTAS_PROC) += rtas-proc.o
+obj-$(CONFIG_LPARCFG) += lparcfg.o
obj-$(CONFIG_IBMVIO) += vio.o
obj-$(CONFIG_GENERIC_TBSYNC) += smp-tbsync.o
--- /dev/null
+/*
+ * PowerPC64 LPAR Configuration Information Driver
+ *
+ * Dave Engebretsen engebret@us.ibm.com
+ * Copyright (c) 2003 Dave Engebretsen
+ * Will Schmidt willschm@us.ibm.com
+ * SPLPAR updates, Copyright (c) 2003 Will Schmidt IBM Corporation.
+ * seq_file updates, Copyright (c) 2004 Will Schmidt IBM Corporation.
+ * Nathan Lynch nathanl@austin.ibm.com
+ * Added lparcfg_write, Copyright (C) 2004 Nathan Lynch IBM Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ * This driver creates a proc file at /proc/ppc64/lparcfg which contains
+ * keyword - value pairs that specify the configuration of the partition.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/proc_fs.h>
+#include <linux/init.h>
+#include <linux/seq_file.h>
+#include <asm/uaccess.h>
+#include <asm/iseries/hv_lp_config.h>
+#include <asm/lppaca.h>
+#include <asm/hvcall.h>
+#include <asm/firmware.h>
+#include <asm/rtas.h>
+#include <asm/system.h>
+#include <asm/time.h>
+#include <asm/iseries/it_exp_vpd_panel.h>
+#include <asm/prom.h>
+#include <asm/systemcfg.h>
+
+#define MODULE_VERS "1.6"
+#define MODULE_NAME "lparcfg"
+
+/* #define LPARCFG_DEBUG */
+
+/* find a better place for this function... */
+void log_plpar_hcall_return(unsigned long rc, char *tag)
+{
+ if (rc == 0) /* success, return */
+ return;
+/* check for null tag ? */
+ if (rc == H_Hardware)
+ printk(KERN_INFO
+ "plpar-hcall (%s) failed with hardware fault\n", tag);
+ else if (rc == H_Function)
+ printk(KERN_INFO
+ "plpar-hcall (%s) failed; function not allowed\n", tag);
+ else if (rc == H_Authority)
+ printk(KERN_INFO
+ "plpar-hcall (%s) failed; not authorized to this function\n",
+ tag);
+ else if (rc == H_Parameter)
+ printk(KERN_INFO "plpar-hcall (%s) failed; Bad parameter(s)\n",
+ tag);
+ else
+ printk(KERN_INFO
+ "plpar-hcall (%s) failed with unexpected rc(0x%lx)\n",
+ tag, rc);
+
+}
+
+static struct proc_dir_entry *proc_ppc64_lparcfg;
+#define LPARCFG_BUFF_SIZE 4096
+
+#ifdef CONFIG_PPC_ISERIES
+
+/*
+ * For iSeries legacy systems, the PPA purr function is available from the
+ * emulated_time_base field in the paca.
+ */
+static unsigned long get_purr(void)
+{
+ unsigned long sum_purr = 0;
+ int cpu;
+ struct paca_struct *lpaca;
+
+ for_each_cpu(cpu) {
+ lpaca = paca + cpu;
+ sum_purr += lpaca->lppaca.emulated_time_base;
+
+#ifdef PURR_DEBUG
+ printk(KERN_INFO "get_purr for cpu (%d) has value (%ld) \n",
+ cpu, lpaca->lppaca.emulated_time_base);
+#endif
+ }
+ return sum_purr;
+}
+
+#define lparcfg_write NULL
+
+/*
+ * Methods used to fetch LPAR data when running on an iSeries platform.
+ */
+static int lparcfg_data(struct seq_file *m, void *v)
+{
+ unsigned long pool_id, lp_index;
+ int shared, entitled_capacity, max_entitled_capacity;
+ int processors, max_processors;
+ struct paca_struct *lpaca = get_paca();
+ unsigned long purr = get_purr();
+
+ seq_printf(m, "%s %s \n", MODULE_NAME, MODULE_VERS);
+
+ shared = (int)(lpaca->lppaca_ptr->shared_proc);
+ seq_printf(m, "serial_number=%c%c%c%c%c%c%c\n",
+ e2a(xItExtVpdPanel.mfgID[2]),
+ e2a(xItExtVpdPanel.mfgID[3]),
+ e2a(xItExtVpdPanel.systemSerial[1]),
+ e2a(xItExtVpdPanel.systemSerial[2]),
+ e2a(xItExtVpdPanel.systemSerial[3]),
+ e2a(xItExtVpdPanel.systemSerial[4]),
+ e2a(xItExtVpdPanel.systemSerial[5]));
+
+ seq_printf(m, "system_type=%c%c%c%c\n",
+ e2a(xItExtVpdPanel.machineType[0]),
+ e2a(xItExtVpdPanel.machineType[1]),
+ e2a(xItExtVpdPanel.machineType[2]),
+ e2a(xItExtVpdPanel.machineType[3]));
+
+ lp_index = HvLpConfig_getLpIndex();
+ seq_printf(m, "partition_id=%d\n", (int)lp_index);
+
+ seq_printf(m, "system_active_processors=%d\n",
+ (int)HvLpConfig_getSystemPhysicalProcessors());
+
+ seq_printf(m, "system_potential_processors=%d\n",
+ (int)HvLpConfig_getSystemPhysicalProcessors());
+
+ processors = (int)HvLpConfig_getPhysicalProcessors();
+ seq_printf(m, "partition_active_processors=%d\n", processors);
+
+ max_processors = (int)HvLpConfig_getMaxPhysicalProcessors();
+ seq_printf(m, "partition_potential_processors=%d\n", max_processors);
+
+ if (shared) {
+ entitled_capacity = HvLpConfig_getSharedProcUnits();
+ max_entitled_capacity = HvLpConfig_getMaxSharedProcUnits();
+ } else {
+ entitled_capacity = processors * 100;
+ max_entitled_capacity = max_processors * 100;
+ }
+ seq_printf(m, "partition_entitled_capacity=%d\n", entitled_capacity);
+
+ seq_printf(m, "partition_max_entitled_capacity=%d\n",
+ max_entitled_capacity);
+
+ if (shared) {
+ pool_id = HvLpConfig_getSharedPoolIndex();
+ seq_printf(m, "pool=%d\n", (int)pool_id);
+ seq_printf(m, "pool_capacity=%d\n",
+ (int)(HvLpConfig_getNumProcsInSharedPool(pool_id) *
+ 100));
+ seq_printf(m, "purr=%ld\n", purr);
+ }
+
+ seq_printf(m, "shared_processor_mode=%d\n", shared);
+
+ return 0;
+}
+#endif /* CONFIG_PPC_ISERIES */
+
+#ifdef CONFIG_PPC_PSERIES
+/*
+ * Methods used to fetch LPAR data when running on a pSeries platform.
+ */
+
+/*
+ * H_GET_PPP hcall returns info in 4 parms.
+ * entitled_capacity,unallocated_capacity,
+ * aggregation, resource_capability).
+ *
+ * R4 = Entitled Processor Capacity Percentage.
+ * R5 = Unallocated Processor Capacity Percentage.
+ * R6 (AABBCCDDEEFFGGHH).
+ * XXXX - reserved (0)
+ * XXXX - reserved (0)
+ * XXXX - Group Number
+ * XXXX - Pool Number.
+ * R7 (IIJJKKLLMMNNOOPP).
+ * XX - reserved. (0)
+ * XX - bit 0-6 reserved (0). bit 7 is Capped indicator.
+ * XX - variable processor Capacity Weight
+ * XX - Unallocated Variable Processor Capacity Weight.
+ * XXXX - Active processors in Physical Processor Pool.
+ * XXXX - Processors active on platform.
+ */
+static unsigned int h_get_ppp(unsigned long *entitled,
+ unsigned long *unallocated,
+ unsigned long *aggregation,
+ unsigned long *resource)
+{
+ unsigned long rc;
+ rc = plpar_hcall_4out(H_GET_PPP, 0, 0, 0, 0, entitled, unallocated,
+ aggregation, resource);
+
+ log_plpar_hcall_return(rc, "H_GET_PPP");
+
+ return rc;
+}
+
+static void h_pic(unsigned long *pool_idle_time, unsigned long *num_procs)
+{
+ unsigned long rc;
+ unsigned long dummy;
+ rc = plpar_hcall(H_PIC, 0, 0, 0, 0, pool_idle_time, num_procs, &dummy);
+
+ log_plpar_hcall_return(rc, "H_PIC");
+}
+
+static unsigned long get_purr(void);
+
+/* Track sum of all purrs across all processors. This is used to further */
+/* calculate usage values by different applications */
+
+static unsigned long get_purr(void)
+{
+ unsigned long sum_purr = 0;
+ int cpu;
+ struct cpu_usage *cu;
+
+ for_each_cpu(cpu) {
+ cu = &per_cpu(cpu_usage_array, cpu);
+ sum_purr += cu->current_tb;
+ }
+ return sum_purr;
+}
+
+#define SPLPAR_CHARACTERISTICS_TOKEN 20
+#define SPLPAR_MAXLENGTH 1026*(sizeof(char))
+
+/*
+ * parse_system_parameter_string()
+ * Retrieve the potential_processors, max_entitled_capacity and friends
+ * through the get-system-parameter rtas call. Replace keyword strings as
+ * necessary.
+ */
+static void parse_system_parameter_string(struct seq_file *m)
+{
+ int call_status;
+
+ char *local_buffer = kmalloc(SPLPAR_MAXLENGTH, GFP_KERNEL);
+ if (!local_buffer) {
+ printk(KERN_ERR "%s %s kmalloc failure at line %d \n",
+ __FILE__, __FUNCTION__, __LINE__);
+ return;
+ }
+
+ spin_lock(&rtas_data_buf_lock);
+ memset(rtas_data_buf, 0, SPLPAR_MAXLENGTH);
+ call_status = rtas_call(rtas_token("ibm,get-system-parameter"), 3, 1,
+ NULL,
+ SPLPAR_CHARACTERISTICS_TOKEN,
+ __pa(rtas_data_buf));
+ memcpy(local_buffer, rtas_data_buf, SPLPAR_MAXLENGTH);
+ spin_unlock(&rtas_data_buf_lock);
+
+ if (call_status != 0) {
+ printk(KERN_INFO
+ "%s %s Error calling get-system-parameter (0x%x)\n",
+ __FILE__, __FUNCTION__, call_status);
+ } else {
+ int splpar_strlen;
+ int idx, w_idx;
+ char *workbuffer = kmalloc(SPLPAR_MAXLENGTH, GFP_KERNEL);
+ if (!workbuffer) {
+ printk(KERN_ERR "%s %s kmalloc failure at line %d \n",
+ __FILE__, __FUNCTION__, __LINE__);
+ kfree(local_buffer);
+ return;
+ }
+#ifdef LPARCFG_DEBUG
+ printk(KERN_INFO "success calling get-system-parameter \n");
+#endif
+ splpar_strlen = local_buffer[0] * 16 + local_buffer[1];
+ local_buffer += 2; /* step over strlen value */
+
+ memset(workbuffer, 0, SPLPAR_MAXLENGTH);
+ w_idx = 0;
+ idx = 0;
+ while ((*local_buffer) && (idx < splpar_strlen)) {
+ workbuffer[w_idx++] = local_buffer[idx++];
+ if ((local_buffer[idx] == ',')
+ || (local_buffer[idx] == '\0')) {
+ workbuffer[w_idx] = '\0';
+ if (w_idx) {
+ /* avoid the empty string */
+ seq_printf(m, "%s\n", workbuffer);
+ }
+ memset(workbuffer, 0, SPLPAR_MAXLENGTH);
+ idx++; /* skip the comma */
+ w_idx = 0;
+ } else if (local_buffer[idx] == '=') {
+ /* code here to replace workbuffer contents
+ with different keyword strings */
+ if (0 == strcmp(workbuffer, "MaxEntCap")) {
+ strcpy(workbuffer,
+ "partition_max_entitled_capacity");
+ w_idx = strlen(workbuffer);
+ }
+ if (0 == strcmp(workbuffer, "MaxPlatProcs")) {
+ strcpy(workbuffer,
+ "system_potential_processors");
+ w_idx = strlen(workbuffer);
+ }
+ }
+ }
+ kfree(workbuffer);
+ local_buffer -= 2; /* back up over strlen value */
+ }
+ kfree(local_buffer);
+}
+
+static int lparcfg_count_active_processors(void);
+
+/* Return the number of processors in the system.
+ * This function reads through the device tree and counts
+ * the virtual processors, this does not include threads.
+ */
+static int lparcfg_count_active_processors(void)
+{
+ struct device_node *cpus_dn = NULL;
+ int count = 0;
+
+ while ((cpus_dn = of_find_node_by_type(cpus_dn, "cpu"))) {
+#ifdef LPARCFG_DEBUG
+ printk(KERN_ERR "cpus_dn %p \n", cpus_dn);
+#endif
+ count++;
+ }
+ return count;
+}
+
+static int lparcfg_data(struct seq_file *m, void *v)
+{
+ int partition_potential_processors;
+ int partition_active_processors;
+ struct device_node *rootdn;
+ const char *model = "";
+ const char *system_id = "";
+ unsigned int *lp_index_ptr, lp_index = 0;
+ struct device_node *rtas_node;
+ int *lrdrp;
+
+ rootdn = find_path_device("/");
+ if (rootdn) {
+ model = get_property(rootdn, "model", NULL);
+ system_id = get_property(rootdn, "system-id", NULL);
+ lp_index_ptr = (unsigned int *)
+ get_property(rootdn, "ibm,partition-no", NULL);
+ if (lp_index_ptr)
+ lp_index = *lp_index_ptr;
+ }
+
+ seq_printf(m, "%s %s \n", MODULE_NAME, MODULE_VERS);
+
+ seq_printf(m, "serial_number=%s\n", system_id);
+
+ seq_printf(m, "system_type=%s\n", model);
+
+ seq_printf(m, "partition_id=%d\n", (int)lp_index);
+
+ rtas_node = find_path_device("/rtas");
+ lrdrp = (int *)get_property(rtas_node, "ibm,lrdr-capacity", NULL);
+
+ if (lrdrp == NULL) {
+ partition_potential_processors = _systemcfg->processorCount;
+ } else {
+ partition_potential_processors = *(lrdrp + 4);
+ }
+
+ partition_active_processors = lparcfg_count_active_processors();
+
+ if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
+ unsigned long h_entitled, h_unallocated;
+ unsigned long h_aggregation, h_resource;
+ unsigned long pool_idle_time, pool_procs;
+ unsigned long purr;
+
+ h_get_ppp(&h_entitled, &h_unallocated, &h_aggregation,
+ &h_resource);
+
+ seq_printf(m, "R4=0x%lx\n", h_entitled);
+ seq_printf(m, "R5=0x%lx\n", h_unallocated);
+ seq_printf(m, "R6=0x%lx\n", h_aggregation);
+ seq_printf(m, "R7=0x%lx\n", h_resource);
+
+ purr = get_purr();
+
+ /* this call handles the ibm,get-system-parameter contents */
+ parse_system_parameter_string(m);
+
+ seq_printf(m, "partition_entitled_capacity=%ld\n", h_entitled);
+
+ seq_printf(m, "group=%ld\n", (h_aggregation >> 2 * 8) & 0xffff);
+
+ seq_printf(m, "system_active_processors=%ld\n",
+ (h_resource >> 0 * 8) & 0xffff);
+
+ /* pool related entries are apropriate for shared configs */
+ if (paca[0].lppaca.shared_proc) {
+
+ h_pic(&pool_idle_time, &pool_procs);
+
+ seq_printf(m, "pool=%ld\n",
+ (h_aggregation >> 0 * 8) & 0xffff);
+
+ /* report pool_capacity in percentage */
+ seq_printf(m, "pool_capacity=%ld\n",
+ ((h_resource >> 2 * 8) & 0xffff) * 100);
+
+ seq_printf(m, "pool_idle_time=%ld\n", pool_idle_time);
+
+ seq_printf(m, "pool_num_procs=%ld\n", pool_procs);
+ }
+
+ seq_printf(m, "unallocated_capacity_weight=%ld\n",
+ (h_resource >> 4 * 8) & 0xFF);
+
+ seq_printf(m, "capacity_weight=%ld\n",
+ (h_resource >> 5 * 8) & 0xFF);
+
+ seq_printf(m, "capped=%ld\n", (h_resource >> 6 * 8) & 0x01);
+
+ seq_printf(m, "unallocated_capacity=%ld\n", h_unallocated);
+
+ seq_printf(m, "purr=%ld\n", purr);
+
+ } else { /* non SPLPAR case */
+
+ seq_printf(m, "system_active_processors=%d\n",
+ partition_potential_processors);
+
+ seq_printf(m, "system_potential_processors=%d\n",
+ partition_potential_processors);
+
+ seq_printf(m, "partition_max_entitled_capacity=%d\n",
+ partition_potential_processors * 100);
+
+ seq_printf(m, "partition_entitled_capacity=%d\n",
+ partition_active_processors * 100);
+ }
+
+ seq_printf(m, "partition_active_processors=%d\n",
+ partition_active_processors);
+
+ seq_printf(m, "partition_potential_processors=%d\n",
+ partition_potential_processors);
+
+ seq_printf(m, "shared_processor_mode=%d\n", paca[0].lppaca.shared_proc);
+
+ return 0;
+}
+
+/*
+ * Interface for changing system parameters (variable capacity weight
+ * and entitled capacity). Format of input is "param_name=value";
+ * anything after value is ignored. Valid parameters at this time are
+ * "partition_entitled_capacity" and "capacity_weight". We use
+ * H_SET_PPP to alter parameters.
+ *
+ * This function should be invoked only on systems with
+ * FW_FEATURE_SPLPAR.
+ */
+static ssize_t lparcfg_write(struct file *file, const char __user * buf,
+ size_t count, loff_t * off)
+{
+ char *kbuf;
+ char *tmp;
+ u64 new_entitled, *new_entitled_ptr = &new_entitled;
+ u8 new_weight, *new_weight_ptr = &new_weight;
+
+ unsigned long current_entitled; /* parameters for h_get_ppp */
+ unsigned long dummy;
+ unsigned long resource;
+ u8 current_weight;
+
+ ssize_t retval = -ENOMEM;
+
+ kbuf = kmalloc(count, GFP_KERNEL);
+ if (!kbuf)
+ goto out;
+
+ retval = -EFAULT;
+ if (copy_from_user(kbuf, buf, count))
+ goto out;
+
+ retval = -EINVAL;
+ kbuf[count - 1] = '\0';
+ tmp = strchr(kbuf, '=');
+ if (!tmp)
+ goto out;
+
+ *tmp++ = '\0';
+
+ if (!strcmp(kbuf, "partition_entitled_capacity")) {
+ char *endp;
+ *new_entitled_ptr = (u64) simple_strtoul(tmp, &endp, 10);
+ if (endp == tmp)
+ goto out;
+ new_weight_ptr = ¤t_weight;
+ } else if (!strcmp(kbuf, "capacity_weight")) {
+ char *endp;
+ *new_weight_ptr = (u8) simple_strtoul(tmp, &endp, 10);
+ if (endp == tmp)
+ goto out;
+ new_entitled_ptr = ¤t_entitled;
+ } else
+ goto out;
+
+ /* Get our current parameters */
+ retval = h_get_ppp(¤t_entitled, &dummy, &dummy, &resource);
+ if (retval) {
+ retval = -EIO;
+ goto out;
+ }
+
+ current_weight = (resource >> 5 * 8) & 0xFF;
+
+ pr_debug("%s: current_entitled = %lu, current_weight = %lu\n",
+ __FUNCTION__, current_entitled, current_weight);
+
+ pr_debug("%s: new_entitled = %lu, new_weight = %lu\n",
+ __FUNCTION__, *new_entitled_ptr, *new_weight_ptr);
+
+ retval = plpar_hcall_norets(H_SET_PPP, *new_entitled_ptr,
+ *new_weight_ptr);
+
+ if (retval == H_Success || retval == H_Constrained) {
+ retval = count;
+ } else if (retval == H_Busy) {
+ retval = -EBUSY;
+ } else if (retval == H_Hardware) {
+ retval = -EIO;
+ } else if (retval == H_Parameter) {
+ retval = -EINVAL;
+ } else {
+ printk(KERN_WARNING "%s: received unknown hv return code %ld",
+ __FUNCTION__, retval);
+ retval = -EIO;
+ }
+
+ out:
+ kfree(kbuf);
+ return retval;
+}
+
+#endif /* CONFIG_PPC_PSERIES */
+
+static int lparcfg_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, lparcfg_data, NULL);
+}
+
+struct file_operations lparcfg_fops = {
+ .owner = THIS_MODULE,
+ .read = seq_read,
+ .open = lparcfg_open,
+ .release = single_release,
+};
+
+int __init lparcfg_init(void)
+{
+ struct proc_dir_entry *ent;
+ mode_t mode = S_IRUSR | S_IRGRP | S_IROTH;
+
+ /* Allow writing if we have FW_FEATURE_SPLPAR */
+ if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
+ lparcfg_fops.write = lparcfg_write;
+ mode |= S_IWUSR;
+ }
+
+ ent = create_proc_entry("ppc64/lparcfg", mode, NULL);
+ if (ent) {
+ ent->proc_fops = &lparcfg_fops;
+ ent->data = kmalloc(LPARCFG_BUFF_SIZE, GFP_KERNEL);
+ if (!ent->data) {
+ printk(KERN_ERR
+ "Failed to allocate buffer for lparcfg\n");
+ remove_proc_entry("lparcfg", ent->parent);
+ return -ENOMEM;
+ }
+ } else {
+ printk(KERN_ERR "Failed to create ppc64/lparcfg\n");
+ return -EIO;
+ }
+
+ proc_ppc64_lparcfg = ent;
+ return 0;
+}
+
+void __exit lparcfg_cleanup(void)
+{
+ if (proc_ppc64_lparcfg) {
+ kfree(proc_ppc64_lparcfg->data);
+ remove_proc_entry("lparcfg", proc_ppc64_lparcfg->parent);
+ }
+}
+
+module_init(lparcfg_init);
+module_exit(lparcfg_cleanup);
+MODULE_DESCRIPTION("Interface for LPAR configuration data");
+MODULE_AUTHOR("Dave Engebretsen");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * Copyright (C) 2001 Mike Corrigan & Dave Engebretsen IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/proc_fs.h>
+#include <linux/slab.h>
+#include <linux/kernel.h>
+
+#include <asm/systemcfg.h>
+#include <asm/rtas.h>
+#include <asm/uaccess.h>
+#include <asm/prom.h>
+
+static loff_t page_map_seek( struct file *file, loff_t off, int whence);
+static ssize_t page_map_read( struct file *file, char __user *buf, size_t nbytes,
+ loff_t *ppos);
+static int page_map_mmap( struct file *file, struct vm_area_struct *vma );
+
+static struct file_operations page_map_fops = {
+ .llseek = page_map_seek,
+ .read = page_map_read,
+ .mmap = page_map_mmap
+};
+
+/*
+ * Create the ppc64 and ppc64/rtas directories early. This allows us to
+ * assume that they have been previously created in drivers.
+ */
+static int __init proc_ppc64_create(void)
+{
+ struct proc_dir_entry *root;
+
+ root = proc_mkdir("ppc64", NULL);
+ if (!root)
+ return 1;
+
+ if (!(platform_is_pseries() || _machine == PLATFORM_CELL))
+ return 0;
+
+ if (!proc_mkdir("rtas", root))
+ return 1;
+
+ if (!proc_symlink("rtas", NULL, "ppc64/rtas"))
+ return 1;
+
+ return 0;
+}
+core_initcall(proc_ppc64_create);
+
+static int __init proc_ppc64_init(void)
+{
+ struct proc_dir_entry *pde;
+
+ pde = create_proc_entry("ppc64/systemcfg", S_IFREG|S_IRUGO, NULL);
+ if (!pde)
+ return 1;
+ pde->nlink = 1;
+ pde->data = _systemcfg;
+ pde->size = PAGE_SIZE;
+ pde->proc_fops = &page_map_fops;
+
+ return 0;
+}
+__initcall(proc_ppc64_init);
+
+static loff_t page_map_seek( struct file *file, loff_t off, int whence)
+{
+ loff_t new;
+ struct proc_dir_entry *dp = PDE(file->f_dentry->d_inode);
+
+ switch(whence) {
+ case 0:
+ new = off;
+ break;
+ case 1:
+ new = file->f_pos + off;
+ break;
+ case 2:
+ new = dp->size + off;
+ break;
+ default:
+ return -EINVAL;
+ }
+ if ( new < 0 || new > dp->size )
+ return -EINVAL;
+ return (file->f_pos = new);
+}
+
+static ssize_t page_map_read( struct file *file, char __user *buf, size_t nbytes,
+ loff_t *ppos)
+{
+ struct proc_dir_entry *dp = PDE(file->f_dentry->d_inode);
+ return simple_read_from_buffer(buf, nbytes, ppos, dp->data, dp->size);
+}
+
+static int page_map_mmap( struct file *file, struct vm_area_struct *vma )
+{
+ struct proc_dir_entry *dp = PDE(file->f_dentry->d_inode);
+
+ vma->vm_flags |= VM_SHM | VM_LOCKED;
+
+ if ((vma->vm_end - vma->vm_start) > dp->size)
+ return -EINVAL;
+
+ remap_pfn_range(vma, vma->vm_start, __pa(dp->data) >> PAGE_SHIFT,
+ dp->size, vma->vm_page_prot);
+ return 0;
+}
+
--- /dev/null
+/*
+ * arch/ppc64/kernel/rtas_pci.c
+ *
+ * Copyright (C) 2001 Dave Engebretsen, IBM Corporation
+ * Copyright (C) 2003 Anton Blanchard <anton@au.ibm.com>, IBM
+ *
+ * RTAS specific routines for PCI.
+ *
+ * Based on code from pci.c, chrp_pci.c and pSeries_pci.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/threads.h>
+#include <linux/pci.h>
+#include <linux/string.h>
+#include <linux/init.h>
+#include <linux/bootmem.h>
+
+#include <asm/io.h>
+#include <asm/pgtable.h>
+#include <asm/irq.h>
+#include <asm/prom.h>
+#include <asm/machdep.h>
+#include <asm/pci-bridge.h>
+#include <asm/iommu.h>
+#include <asm/rtas.h>
+#include <asm/mpic.h>
+#include <asm/ppc-pci.h>
+
+/* RTAS tokens */
+static int read_pci_config;
+static int write_pci_config;
+static int ibm_read_pci_config;
+static int ibm_write_pci_config;
+
+static inline int config_access_valid(struct pci_dn *dn, int where)
+{
+ if (where < 256)
+ return 1;
+ if (where < 4096 && dn->pci_ext_config_space)
+ return 1;
+
+ return 0;
+}
+
+static int of_device_available(struct device_node * dn)
+{
+ char * status;
+
+ status = get_property(dn, "status", NULL);
+
+ if (!status)
+ return 1;
+
+ if (!strcmp(status, "okay"))
+ return 1;
+
+ return 0;
+}
+
+static int rtas_read_config(struct pci_dn *pdn, int where, int size, u32 *val)
+{
+ int returnval = -1;
+ unsigned long buid, addr;
+ int ret;
+
+ if (!pdn)
+ return PCIBIOS_DEVICE_NOT_FOUND;
+ if (!config_access_valid(pdn, where))
+ return PCIBIOS_BAD_REGISTER_NUMBER;
+
+ addr = ((where & 0xf00) << 20) | (pdn->busno << 16) |
+ (pdn->devfn << 8) | (where & 0xff);
+ buid = pdn->phb->buid;
+ if (buid) {
+ ret = rtas_call(ibm_read_pci_config, 4, 2, &returnval,
+ addr, BUID_HI(buid), BUID_LO(buid), size);
+ } else {
+ ret = rtas_call(read_pci_config, 2, 2, &returnval, addr, size);
+ }
+ *val = returnval;
+
+ if (ret)
+ return PCIBIOS_DEVICE_NOT_FOUND;
+
+ if (returnval == EEH_IO_ERROR_VALUE(size) &&
+ eeh_dn_check_failure (pdn->node, NULL))
+ return PCIBIOS_DEVICE_NOT_FOUND;
+
+ return PCIBIOS_SUCCESSFUL;
+}
+
+static int rtas_pci_read_config(struct pci_bus *bus,
+ unsigned int devfn,
+ int where, int size, u32 *val)
+{
+ struct device_node *busdn, *dn;
+
+ if (bus->self)
+ busdn = pci_device_to_OF_node(bus->self);
+ else
+ busdn = bus->sysdata; /* must be a phb */
+
+ /* Search only direct children of the bus */
+ for (dn = busdn->child; dn; dn = dn->sibling) {
+ struct pci_dn *pdn = PCI_DN(dn);
+ if (pdn && pdn->devfn == devfn
+ && of_device_available(dn))
+ return rtas_read_config(pdn, where, size, val);
+ }
+
+ return PCIBIOS_DEVICE_NOT_FOUND;
+}
+
+int rtas_write_config(struct pci_dn *pdn, int where, int size, u32 val)
+{
+ unsigned long buid, addr;
+ int ret;
+
+ if (!pdn)
+ return PCIBIOS_DEVICE_NOT_FOUND;
+ if (!config_access_valid(pdn, where))
+ return PCIBIOS_BAD_REGISTER_NUMBER;
+
+ addr = ((where & 0xf00) << 20) | (pdn->busno << 16) |
+ (pdn->devfn << 8) | (where & 0xff);
+ buid = pdn->phb->buid;
+ if (buid) {
+ ret = rtas_call(ibm_write_pci_config, 5, 1, NULL, addr,
+ BUID_HI(buid), BUID_LO(buid), size, (ulong) val);
+ } else {
+ ret = rtas_call(write_pci_config, 3, 1, NULL, addr, size, (ulong)val);
+ }
+
+ if (ret)
+ return PCIBIOS_DEVICE_NOT_FOUND;
+
+ return PCIBIOS_SUCCESSFUL;
+}
+
+static int rtas_pci_write_config(struct pci_bus *bus,
+ unsigned int devfn,
+ int where, int size, u32 val)
+{
+ struct device_node *busdn, *dn;
+
+ if (bus->self)
+ busdn = pci_device_to_OF_node(bus->self);
+ else
+ busdn = bus->sysdata; /* must be a phb */
+
+ /* Search only direct children of the bus */
+ for (dn = busdn->child; dn; dn = dn->sibling) {
+ struct pci_dn *pdn = PCI_DN(dn);
+ if (pdn && pdn->devfn == devfn
+ && of_device_available(dn))
+ return rtas_write_config(pdn, where, size, val);
+ }
+ return PCIBIOS_DEVICE_NOT_FOUND;
+}
+
+struct pci_ops rtas_pci_ops = {
+ rtas_pci_read_config,
+ rtas_pci_write_config
+};
+
+int is_python(struct device_node *dev)
+{
+ char *model = (char *)get_property(dev, "model", NULL);
+
+ if (model && strstr(model, "Python"))
+ return 1;
+
+ return 0;
+}
+
+static int get_phb_reg_prop(struct device_node *dev,
+ unsigned int addr_size_words,
+ struct reg_property64 *reg)
+{
+ unsigned int *ui_ptr = NULL, len;
+
+ /* Found a PHB, now figure out where his registers are mapped. */
+ ui_ptr = (unsigned int *)get_property(dev, "reg", &len);
+ if (ui_ptr == NULL)
+ return 1;
+
+ if (addr_size_words == 1) {
+ reg->address = ((struct reg_property32 *)ui_ptr)->address;
+ reg->size = ((struct reg_property32 *)ui_ptr)->size;
+ } else {
+ *reg = *((struct reg_property64 *)ui_ptr);
+ }
+
+ return 0;
+}
+
+static void python_countermeasures(struct device_node *dev,
+ unsigned int addr_size_words)
+{
+ struct reg_property64 reg_struct;
+ void __iomem *chip_regs;
+ volatile u32 val;
+
+ if (get_phb_reg_prop(dev, addr_size_words, ®_struct))
+ return;
+
+ /* Python's register file is 1 MB in size. */
+ chip_regs = ioremap(reg_struct.address & ~(0xfffffUL), 0x100000);
+
+ /*
+ * Firmware doesn't always clear this bit which is critical
+ * for good performance - Anton
+ */
+
+#define PRG_CL_RESET_VALID 0x00010000
+
+ val = in_be32(chip_regs + 0xf6030);
+ if (val & PRG_CL_RESET_VALID) {
+ printk(KERN_INFO "Python workaround: ");
+ val &= ~PRG_CL_RESET_VALID;
+ out_be32(chip_regs + 0xf6030, val);
+ /*
+ * We must read it back for changes to
+ * take effect
+ */
+ val = in_be32(chip_regs + 0xf6030);
+ printk("reg0: %x\n", val);
+ }
+
+ iounmap(chip_regs);
+}
+
+void __init init_pci_config_tokens (void)
+{
+ read_pci_config = rtas_token("read-pci-config");
+ write_pci_config = rtas_token("write-pci-config");
+ ibm_read_pci_config = rtas_token("ibm,read-pci-config");
+ ibm_write_pci_config = rtas_token("ibm,write-pci-config");
+}
+
+unsigned long __devinit get_phb_buid (struct device_node *phb)
+{
+ int addr_cells;
+ unsigned int *buid_vals;
+ unsigned int len;
+ unsigned long buid;
+
+ if (ibm_read_pci_config == -1) return 0;
+
+ /* PHB's will always be children of the root node,
+ * or so it is promised by the current firmware. */
+ if (phb->parent == NULL)
+ return 0;
+ if (phb->parent->parent)
+ return 0;
+
+ buid_vals = (unsigned int *) get_property(phb, "reg", &len);
+ if (buid_vals == NULL)
+ return 0;
+
+ addr_cells = prom_n_addr_cells(phb);
+ if (addr_cells == 1) {
+ buid = (unsigned long) buid_vals[0];
+ } else {
+ buid = (((unsigned long)buid_vals[0]) << 32UL) |
+ (((unsigned long)buid_vals[1]) & 0xffffffff);
+ }
+ return buid;
+}
+
+static int phb_set_bus_ranges(struct device_node *dev,
+ struct pci_controller *phb)
+{
+ int *bus_range;
+ unsigned int len;
+
+ bus_range = (int *) get_property(dev, "bus-range", &len);
+ if (bus_range == NULL || len < 2 * sizeof(int)) {
+ return 1;
+ }
+
+ phb->first_busno = bus_range[0];
+ phb->last_busno = bus_range[1];
+
+ return 0;
+}
+
+static int __devinit setup_phb(struct device_node *dev,
+ struct pci_controller *phb,
+ unsigned int addr_size_words)
+{
+ pci_setup_pci_controller(phb);
+
+ if (is_python(dev))
+ python_countermeasures(dev, addr_size_words);
+
+ if (phb_set_bus_ranges(dev, phb))
+ return 1;
+
+ phb->arch_data = dev;
+ phb->ops = &rtas_pci_ops;
+ phb->buid = get_phb_buid(dev);
+
+ return 0;
+}
+
+static void __devinit add_linux_pci_domain(struct device_node *dev,
+ struct pci_controller *phb,
+ struct property *of_prop)
+{
+ memset(of_prop, 0, sizeof(struct property));
+ of_prop->name = "linux,pci-domain";
+ of_prop->length = sizeof(phb->global_number);
+ of_prop->value = (unsigned char *)&of_prop[1];
+ memcpy(of_prop->value, &phb->global_number, sizeof(phb->global_number));
+ prom_add_property(dev, of_prop);
+}
+
+static struct pci_controller * __init alloc_phb(struct device_node *dev,
+ unsigned int addr_size_words)
+{
+ struct pci_controller *phb;
+ struct property *of_prop;
+
+ phb = alloc_bootmem(sizeof(struct pci_controller));
+ if (phb == NULL)
+ return NULL;
+
+ of_prop = alloc_bootmem(sizeof(struct property) +
+ sizeof(phb->global_number));
+ if (!of_prop)
+ return NULL;
+
+ if (setup_phb(dev, phb, addr_size_words))
+ return NULL;
+
+ add_linux_pci_domain(dev, phb, of_prop);
+
+ return phb;
+}
+
+static struct pci_controller * __devinit alloc_phb_dynamic(struct device_node *dev, unsigned int addr_size_words)
+{
+ struct pci_controller *phb;
+
+ phb = (struct pci_controller *)kmalloc(sizeof(struct pci_controller),
+ GFP_KERNEL);
+ if (phb == NULL)
+ return NULL;
+
+ if (setup_phb(dev, phb, addr_size_words))
+ return NULL;
+
+ phb->is_dynamic = 1;
+
+ /* TODO: linux,pci-domain? */
+
+ return phb;
+}
+
+unsigned long __init find_and_init_phbs(void)
+{
+ struct device_node *node;
+ struct pci_controller *phb;
+ unsigned int root_size_cells = 0;
+ unsigned int index;
+ unsigned int *opprop = NULL;
+ struct device_node *root = of_find_node_by_path("/");
+
+ if (ppc64_interrupt_controller == IC_OPEN_PIC) {
+ opprop = (unsigned int *)get_property(root,
+ "platform-open-pic", NULL);
+ }
+
+ root_size_cells = prom_n_size_cells(root);
+
+ index = 0;
+
+ for (node = of_get_next_child(root, NULL);
+ node != NULL;
+ node = of_get_next_child(root, node)) {
+ if (node->type == NULL || strcmp(node->type, "pci") != 0)
+ continue;
+
+ phb = alloc_phb(node, root_size_cells);
+ if (!phb)
+ continue;
+
+ pci_process_bridge_OF_ranges(phb, node, 0);
+ pci_setup_phb_io(phb, index == 0);
+#ifdef CONFIG_PPC_PSERIES
+ if (ppc64_interrupt_controller == IC_OPEN_PIC && pSeries_mpic) {
+ int addr = root_size_cells * (index + 2) - 1;
+ mpic_assign_isu(pSeries_mpic, index, opprop[addr]);
+ }
+#endif
+ index++;
+ }
+
+ of_node_put(root);
+ pci_devs_phb_init();
+
+ /*
+ * pci_probe_only and pci_assign_all_buses can be set via properties
+ * in chosen.
+ */
+ if (of_chosen) {
+ int *prop;
+
+ prop = (int *)get_property(of_chosen, "linux,pci-probe-only",
+ NULL);
+ if (prop)
+ pci_probe_only = *prop;
+
+ prop = (int *)get_property(of_chosen,
+ "linux,pci-assign-all-buses", NULL);
+ if (prop)
+ pci_assign_all_buses = *prop;
+ }
+
+ return 0;
+}
+
+struct pci_controller * __devinit init_phb_dynamic(struct device_node *dn)
+{
+ struct device_node *root = of_find_node_by_path("/");
+ unsigned int root_size_cells = 0;
+ struct pci_controller *phb;
+ int primary;
+
+ root_size_cells = prom_n_size_cells(root);
+
+ primary = list_empty(&hose_list);
+ phb = alloc_phb_dynamic(dn, root_size_cells);
+ if (!phb)
+ return NULL;
+
+ pci_process_bridge_OF_ranges(phb, dn, primary);
+
+ pci_setup_phb_io_dynamic(phb, primary);
+ of_node_put(root);
+
+ pci_devs_phb_init_dynamic(phb);
+ scan_phb(phb);
+
+ return phb;
+}
+EXPORT_SYMBOL(init_phb_dynamic);
+
+/* RPA-specific bits for removing PHBs */
+int pcibios_remove_root_bus(struct pci_controller *phb)
+{
+ struct pci_bus *b = phb->bus;
+ struct resource *res;
+ int rc, i;
+
+ res = b->resource[0];
+ if (!res->flags) {
+ printk(KERN_ERR "%s: no IO resource for PHB %s\n", __FUNCTION__,
+ b->name);
+ return 1;
+ }
+
+ rc = unmap_bus_range(b);
+ if (rc) {
+ printk(KERN_ERR "%s: failed to unmap IO on bus %s\n",
+ __FUNCTION__, b->name);
+ return 1;
+ }
+
+ if (release_resource(res)) {
+ printk(KERN_ERR "%s: failed to release IO on bus %s\n",
+ __FUNCTION__, b->name);
+ return 1;
+ }
+
+ for (i = 1; i < 3; ++i) {
+ res = b->resource[i];
+ if (!res->flags && i == 0) {
+ printk(KERN_ERR "%s: no MEM resource for PHB %s\n",
+ __FUNCTION__, b->name);
+ return 1;
+ }
+ if (res->flags && release_resource(res)) {
+ printk(KERN_ERR
+ "%s: failed to release IO %d on bus %s\n",
+ __FUNCTION__, i, b->name);
+ return 1;
+ }
+ }
+
+ list_del(&phb->list_node);
+ if (phb->is_dynamic)
+ kfree(phb);
+
+ return 0;
+}
+EXPORT_SYMBOL(pcibios_remove_root_bus);
--- /dev/null
+#include <linux/config.h>
+#include <linux/sysdev.h>
+#include <linux/cpu.h>
+#include <linux/smp.h>
+#include <linux/percpu.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/module.h>
+#include <linux/nodemask.h>
+#include <linux/cpumask.h>
+#include <linux/notifier.h>
+
+#include <asm/current.h>
+#include <asm/processor.h>
+#include <asm/cputable.h>
+#include <asm/firmware.h>
+#include <asm/hvcall.h>
+#include <asm/prom.h>
+#include <asm/systemcfg.h>
+#include <asm/paca.h>
+#include <asm/lppaca.h>
+#include <asm/machdep.h>
+#include <asm/smp.h>
+
+static DEFINE_PER_CPU(struct cpu, cpu_devices);
+
+/* SMT stuff */
+
+#ifdef CONFIG_PPC_MULTIPLATFORM
+/* default to snooze disabled */
+DEFINE_PER_CPU(unsigned long, smt_snooze_delay);
+
+static ssize_t store_smt_snooze_delay(struct sys_device *dev, const char *buf,
+ size_t count)
+{
+ struct cpu *cpu = container_of(dev, struct cpu, sysdev);
+ ssize_t ret;
+ unsigned long snooze;
+
+ ret = sscanf(buf, "%lu", &snooze);
+ if (ret != 1)
+ return -EINVAL;
+
+ per_cpu(smt_snooze_delay, cpu->sysdev.id) = snooze;
+
+ return count;
+}
+
+static ssize_t show_smt_snooze_delay(struct sys_device *dev, char *buf)
+{
+ struct cpu *cpu = container_of(dev, struct cpu, sysdev);
+
+ return sprintf(buf, "%lu\n", per_cpu(smt_snooze_delay, cpu->sysdev.id));
+}
+
+static SYSDEV_ATTR(smt_snooze_delay, 0644, show_smt_snooze_delay,
+ store_smt_snooze_delay);
+
+/* Only parse OF options if the matching cmdline option was not specified */
+static int smt_snooze_cmdline;
+
+static int __init smt_setup(void)
+{
+ struct device_node *options;
+ unsigned int *val;
+ unsigned int cpu;
+
+ if (!cpu_has_feature(CPU_FTR_SMT))
+ return 1;
+
+ options = find_path_device("/options");
+ if (!options)
+ return 1;
+
+ val = (unsigned int *)get_property(options, "ibm,smt-snooze-delay",
+ NULL);
+ if (!smt_snooze_cmdline && val) {
+ for_each_cpu(cpu)
+ per_cpu(smt_snooze_delay, cpu) = *val;
+ }
+
+ return 1;
+}
+__initcall(smt_setup);
+
+static int __init setup_smt_snooze_delay(char *str)
+{
+ unsigned int cpu;
+ int snooze;
+
+ if (!cpu_has_feature(CPU_FTR_SMT))
+ return 1;
+
+ smt_snooze_cmdline = 1;
+
+ if (get_option(&str, &snooze)) {
+ for_each_cpu(cpu)
+ per_cpu(smt_snooze_delay, cpu) = snooze;
+ }
+
+ return 1;
+}
+__setup("smt-snooze-delay=", setup_smt_snooze_delay);
+
+#endif /* CONFIG_PPC_MULTIPLATFORM */
+
+/*
+ * Enabling PMCs will slow partition context switch times so we only do
+ * it the first time we write to the PMCs.
+ */
+
+static DEFINE_PER_CPU(char, pmcs_enabled);
+
+void ppc64_enable_pmcs(void)
+{
+ /* Only need to enable them once */
+ if (__get_cpu_var(pmcs_enabled))
+ return;
+
+ __get_cpu_var(pmcs_enabled) = 1;
+
+ if (ppc_md.enable_pmcs)
+ ppc_md.enable_pmcs();
+}
+EXPORT_SYMBOL(ppc64_enable_pmcs);
+
+/* XXX convert to rusty's on_one_cpu */
+static unsigned long run_on_cpu(unsigned long cpu,
+ unsigned long (*func)(unsigned long),
+ unsigned long arg)
+{
+ cpumask_t old_affinity = current->cpus_allowed;
+ unsigned long ret;
+
+ /* should return -EINVAL to userspace */
+ if (set_cpus_allowed(current, cpumask_of_cpu(cpu)))
+ return 0;
+
+ ret = func(arg);
+
+ set_cpus_allowed(current, old_affinity);
+
+ return ret;
+}
+
+#define SYSFS_PMCSETUP(NAME, ADDRESS) \
+static unsigned long read_##NAME(unsigned long junk) \
+{ \
+ return mfspr(ADDRESS); \
+} \
+static unsigned long write_##NAME(unsigned long val) \
+{ \
+ ppc64_enable_pmcs(); \
+ mtspr(ADDRESS, val); \
+ return 0; \
+} \
+static ssize_t show_##NAME(struct sys_device *dev, char *buf) \
+{ \
+ struct cpu *cpu = container_of(dev, struct cpu, sysdev); \
+ unsigned long val = run_on_cpu(cpu->sysdev.id, read_##NAME, 0); \
+ return sprintf(buf, "%lx\n", val); \
+} \
+static ssize_t __attribute_used__ \
+ store_##NAME(struct sys_device *dev, const char *buf, size_t count) \
+{ \
+ struct cpu *cpu = container_of(dev, struct cpu, sysdev); \
+ unsigned long val; \
+ int ret = sscanf(buf, "%lx", &val); \
+ if (ret != 1) \
+ return -EINVAL; \
+ run_on_cpu(cpu->sysdev.id, write_##NAME, val); \
+ return count; \
+}
+
+SYSFS_PMCSETUP(mmcr0, SPRN_MMCR0);
+SYSFS_PMCSETUP(mmcr1, SPRN_MMCR1);
+SYSFS_PMCSETUP(mmcra, SPRN_MMCRA);
+SYSFS_PMCSETUP(pmc1, SPRN_PMC1);
+SYSFS_PMCSETUP(pmc2, SPRN_PMC2);
+SYSFS_PMCSETUP(pmc3, SPRN_PMC3);
+SYSFS_PMCSETUP(pmc4, SPRN_PMC4);
+SYSFS_PMCSETUP(pmc5, SPRN_PMC5);
+SYSFS_PMCSETUP(pmc6, SPRN_PMC6);
+SYSFS_PMCSETUP(pmc7, SPRN_PMC7);
+SYSFS_PMCSETUP(pmc8, SPRN_PMC8);
+SYSFS_PMCSETUP(purr, SPRN_PURR);
+
+static SYSDEV_ATTR(mmcr0, 0600, show_mmcr0, store_mmcr0);
+static SYSDEV_ATTR(mmcr1, 0600, show_mmcr1, store_mmcr1);
+static SYSDEV_ATTR(mmcra, 0600, show_mmcra, store_mmcra);
+static SYSDEV_ATTR(pmc1, 0600, show_pmc1, store_pmc1);
+static SYSDEV_ATTR(pmc2, 0600, show_pmc2, store_pmc2);
+static SYSDEV_ATTR(pmc3, 0600, show_pmc3, store_pmc3);
+static SYSDEV_ATTR(pmc4, 0600, show_pmc4, store_pmc4);
+static SYSDEV_ATTR(pmc5, 0600, show_pmc5, store_pmc5);
+static SYSDEV_ATTR(pmc6, 0600, show_pmc6, store_pmc6);
+static SYSDEV_ATTR(pmc7, 0600, show_pmc7, store_pmc7);
+static SYSDEV_ATTR(pmc8, 0600, show_pmc8, store_pmc8);
+static SYSDEV_ATTR(purr, 0600, show_purr, NULL);
+
+static void register_cpu_online(unsigned int cpu)
+{
+ struct cpu *c = &per_cpu(cpu_devices, cpu);
+ struct sys_device *s = &c->sysdev;
+
+#ifndef CONFIG_PPC_ISERIES
+ if (cpu_has_feature(CPU_FTR_SMT))
+ sysdev_create_file(s, &attr_smt_snooze_delay);
+#endif
+
+ /* PMC stuff */
+
+ sysdev_create_file(s, &attr_mmcr0);
+ sysdev_create_file(s, &attr_mmcr1);
+
+ if (cpu_has_feature(CPU_FTR_MMCRA))
+ sysdev_create_file(s, &attr_mmcra);
+
+ if (cur_cpu_spec->num_pmcs >= 1)
+ sysdev_create_file(s, &attr_pmc1);
+ if (cur_cpu_spec->num_pmcs >= 2)
+ sysdev_create_file(s, &attr_pmc2);
+ if (cur_cpu_spec->num_pmcs >= 3)
+ sysdev_create_file(s, &attr_pmc3);
+ if (cur_cpu_spec->num_pmcs >= 4)
+ sysdev_create_file(s, &attr_pmc4);
+ if (cur_cpu_spec->num_pmcs >= 5)
+ sysdev_create_file(s, &attr_pmc5);
+ if (cur_cpu_spec->num_pmcs >= 6)
+ sysdev_create_file(s, &attr_pmc6);
+ if (cur_cpu_spec->num_pmcs >= 7)
+ sysdev_create_file(s, &attr_pmc7);
+ if (cur_cpu_spec->num_pmcs >= 8)
+ sysdev_create_file(s, &attr_pmc8);
+
+ if (cpu_has_feature(CPU_FTR_SMT))
+ sysdev_create_file(s, &attr_purr);
+}
+
+#ifdef CONFIG_HOTPLUG_CPU
+static void unregister_cpu_online(unsigned int cpu)
+{
+ struct cpu *c = &per_cpu(cpu_devices, cpu);
+ struct sys_device *s = &c->sysdev;
+
+ BUG_ON(c->no_control);
+
+#ifndef CONFIG_PPC_ISERIES
+ if (cpu_has_feature(CPU_FTR_SMT))
+ sysdev_remove_file(s, &attr_smt_snooze_delay);
+#endif
+
+ /* PMC stuff */
+
+ sysdev_remove_file(s, &attr_mmcr0);
+ sysdev_remove_file(s, &attr_mmcr1);
+
+ if (cpu_has_feature(CPU_FTR_MMCRA))
+ sysdev_remove_file(s, &attr_mmcra);
+
+ if (cur_cpu_spec->num_pmcs >= 1)
+ sysdev_remove_file(s, &attr_pmc1);
+ if (cur_cpu_spec->num_pmcs >= 2)
+ sysdev_remove_file(s, &attr_pmc2);
+ if (cur_cpu_spec->num_pmcs >= 3)
+ sysdev_remove_file(s, &attr_pmc3);
+ if (cur_cpu_spec->num_pmcs >= 4)
+ sysdev_remove_file(s, &attr_pmc4);
+ if (cur_cpu_spec->num_pmcs >= 5)
+ sysdev_remove_file(s, &attr_pmc5);
+ if (cur_cpu_spec->num_pmcs >= 6)
+ sysdev_remove_file(s, &attr_pmc6);
+ if (cur_cpu_spec->num_pmcs >= 7)
+ sysdev_remove_file(s, &attr_pmc7);
+ if (cur_cpu_spec->num_pmcs >= 8)
+ sysdev_remove_file(s, &attr_pmc8);
+
+ if (cpu_has_feature(CPU_FTR_SMT))
+ sysdev_remove_file(s, &attr_purr);
+}
+#endif /* CONFIG_HOTPLUG_CPU */
+
+static int __devinit sysfs_cpu_notify(struct notifier_block *self,
+ unsigned long action, void *hcpu)
+{
+ unsigned int cpu = (unsigned int)(long)hcpu;
+
+ switch (action) {
+ case CPU_ONLINE:
+ register_cpu_online(cpu);
+ break;
+#ifdef CONFIG_HOTPLUG_CPU
+ case CPU_DEAD:
+ unregister_cpu_online(cpu);
+ break;
+#endif
+ }
+ return NOTIFY_OK;
+}
+
+static struct notifier_block __devinitdata sysfs_cpu_nb = {
+ .notifier_call = sysfs_cpu_notify,
+};
+
+/* NUMA stuff */
+
+#ifdef CONFIG_NUMA
+static struct node node_devices[MAX_NUMNODES];
+
+static void register_nodes(void)
+{
+ int i;
+
+ for (i = 0; i < MAX_NUMNODES; i++) {
+ if (node_online(i)) {
+ int p_node = parent_node(i);
+ struct node *parent = NULL;
+
+ if (p_node != i)
+ parent = &node_devices[p_node];
+
+ register_node(&node_devices[i], i, parent);
+ }
+ }
+}
+#else
+static void register_nodes(void)
+{
+ return;
+}
+#endif
+
+/* Only valid if CPU is present. */
+static ssize_t show_physical_id(struct sys_device *dev, char *buf)
+{
+ struct cpu *cpu = container_of(dev, struct cpu, sysdev);
+
+ return sprintf(buf, "%d\n", get_hard_smp_processor_id(cpu->sysdev.id));
+}
+static SYSDEV_ATTR(physical_id, 0444, show_physical_id, NULL);
+
+static int __init topology_init(void)
+{
+ int cpu;
+ struct node *parent = NULL;
+
+ register_nodes();
+
+ register_cpu_notifier(&sysfs_cpu_nb);
+
+ for_each_cpu(cpu) {
+ struct cpu *c = &per_cpu(cpu_devices, cpu);
+
+#ifdef CONFIG_NUMA
+ /* The node to which a cpu belongs can't be known
+ * until the cpu is made present.
+ */
+ parent = NULL;
+ if (cpu_present(cpu))
+ parent = &node_devices[cpu_to_node(cpu)];
+#endif
+ /*
+ * For now, we just see if the system supports making
+ * the RTAS calls for CPU hotplug. But, there may be a
+ * more comprehensive way to do this for an individual
+ * CPU. For instance, the boot cpu might never be valid
+ * for hotplugging.
+ */
+ if (!ppc_md.cpu_die)
+ c->no_control = 1;
+
+ if (cpu_online(cpu) || (c->no_control == 0)) {
+ register_cpu(c, cpu, parent);
+
+ sysdev_create_file(&c->sysdev, &attr_physical_id);
+ }
+
+ if (cpu_online(cpu))
+ register_cpu_online(cpu);
+ }
+
+ return 0;
+}
+__initcall(topology_init);
align.o \
udbg.o \
rtc.o \
- iommu.o sysfs.o vdso.o
+ iommu.o vdso.o
obj-y += vdso32/ vdso64/
pci-obj-$(CONFIG_PPC_MULTIPLATFORM) += pci_dn.o pci_direct_iommu.o
obj-$(CONFIG_PPC_PSERIES) += udbg_16550.o
obj-$(CONFIG_KEXEC) += machine_kexec.o
-obj-$(CONFIG_PROC_FS) += proc_ppc64.o
obj-$(CONFIG_MODULES) += module.o
ifneq ($(CONFIG_PPC_MERGE),y)
obj-$(CONFIG_MODULES) += ppc_ksyms.o
endif
-obj-$(CONFIG_PPC_RTAS) += rtas_pci.o
-obj-$(CONFIG_LPARCFG) += lparcfg.o
obj-$(CONFIG_HVC_CONSOLE) += hvconsole.o
ifneq ($(CONFIG_PPC_MERGE),y)
obj-$(CONFIG_BOOTX_TEXT) += btext.o
+++ /dev/null
-/*
- * PowerPC64 LPAR Configuration Information Driver
- *
- * Dave Engebretsen engebret@us.ibm.com
- * Copyright (c) 2003 Dave Engebretsen
- * Will Schmidt willschm@us.ibm.com
- * SPLPAR updates, Copyright (c) 2003 Will Schmidt IBM Corporation.
- * seq_file updates, Copyright (c) 2004 Will Schmidt IBM Corporation.
- * Nathan Lynch nathanl@austin.ibm.com
- * Added lparcfg_write, Copyright (C) 2004 Nathan Lynch IBM Corporation.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * This driver creates a proc file at /proc/ppc64/lparcfg which contains
- * keyword - value pairs that specify the configuration of the partition.
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/proc_fs.h>
-#include <linux/init.h>
-#include <linux/seq_file.h>
-#include <asm/uaccess.h>
-#include <asm/iseries/hv_lp_config.h>
-#include <asm/lppaca.h>
-#include <asm/hvcall.h>
-#include <asm/firmware.h>
-#include <asm/rtas.h>
-#include <asm/system.h>
-#include <asm/time.h>
-#include <asm/iseries/it_exp_vpd_panel.h>
-#include <asm/prom.h>
-#include <asm/systemcfg.h>
-
-#define MODULE_VERS "1.6"
-#define MODULE_NAME "lparcfg"
-
-/* #define LPARCFG_DEBUG */
-
-/* find a better place for this function... */
-void log_plpar_hcall_return(unsigned long rc, char *tag)
-{
- if (rc == 0) /* success, return */
- return;
-/* check for null tag ? */
- if (rc == H_Hardware)
- printk(KERN_INFO
- "plpar-hcall (%s) failed with hardware fault\n", tag);
- else if (rc == H_Function)
- printk(KERN_INFO
- "plpar-hcall (%s) failed; function not allowed\n", tag);
- else if (rc == H_Authority)
- printk(KERN_INFO
- "plpar-hcall (%s) failed; not authorized to this function\n",
- tag);
- else if (rc == H_Parameter)
- printk(KERN_INFO "plpar-hcall (%s) failed; Bad parameter(s)\n",
- tag);
- else
- printk(KERN_INFO
- "plpar-hcall (%s) failed with unexpected rc(0x%lx)\n",
- tag, rc);
-
-}
-
-static struct proc_dir_entry *proc_ppc64_lparcfg;
-#define LPARCFG_BUFF_SIZE 4096
-
-#ifdef CONFIG_PPC_ISERIES
-
-/*
- * For iSeries legacy systems, the PPA purr function is available from the
- * emulated_time_base field in the paca.
- */
-static unsigned long get_purr(void)
-{
- unsigned long sum_purr = 0;
- int cpu;
- struct paca_struct *lpaca;
-
- for_each_cpu(cpu) {
- lpaca = paca + cpu;
- sum_purr += lpaca->lppaca.emulated_time_base;
-
-#ifdef PURR_DEBUG
- printk(KERN_INFO "get_purr for cpu (%d) has value (%ld) \n",
- cpu, lpaca->lppaca.emulated_time_base);
-#endif
- }
- return sum_purr;
-}
-
-#define lparcfg_write NULL
-
-/*
- * Methods used to fetch LPAR data when running on an iSeries platform.
- */
-static int lparcfg_data(struct seq_file *m, void *v)
-{
- unsigned long pool_id, lp_index;
- int shared, entitled_capacity, max_entitled_capacity;
- int processors, max_processors;
- struct paca_struct *lpaca = get_paca();
- unsigned long purr = get_purr();
-
- seq_printf(m, "%s %s \n", MODULE_NAME, MODULE_VERS);
-
- shared = (int)(lpaca->lppaca_ptr->shared_proc);
- seq_printf(m, "serial_number=%c%c%c%c%c%c%c\n",
- e2a(xItExtVpdPanel.mfgID[2]),
- e2a(xItExtVpdPanel.mfgID[3]),
- e2a(xItExtVpdPanel.systemSerial[1]),
- e2a(xItExtVpdPanel.systemSerial[2]),
- e2a(xItExtVpdPanel.systemSerial[3]),
- e2a(xItExtVpdPanel.systemSerial[4]),
- e2a(xItExtVpdPanel.systemSerial[5]));
-
- seq_printf(m, "system_type=%c%c%c%c\n",
- e2a(xItExtVpdPanel.machineType[0]),
- e2a(xItExtVpdPanel.machineType[1]),
- e2a(xItExtVpdPanel.machineType[2]),
- e2a(xItExtVpdPanel.machineType[3]));
-
- lp_index = HvLpConfig_getLpIndex();
- seq_printf(m, "partition_id=%d\n", (int)lp_index);
-
- seq_printf(m, "system_active_processors=%d\n",
- (int)HvLpConfig_getSystemPhysicalProcessors());
-
- seq_printf(m, "system_potential_processors=%d\n",
- (int)HvLpConfig_getSystemPhysicalProcessors());
-
- processors = (int)HvLpConfig_getPhysicalProcessors();
- seq_printf(m, "partition_active_processors=%d\n", processors);
-
- max_processors = (int)HvLpConfig_getMaxPhysicalProcessors();
- seq_printf(m, "partition_potential_processors=%d\n", max_processors);
-
- if (shared) {
- entitled_capacity = HvLpConfig_getSharedProcUnits();
- max_entitled_capacity = HvLpConfig_getMaxSharedProcUnits();
- } else {
- entitled_capacity = processors * 100;
- max_entitled_capacity = max_processors * 100;
- }
- seq_printf(m, "partition_entitled_capacity=%d\n", entitled_capacity);
-
- seq_printf(m, "partition_max_entitled_capacity=%d\n",
- max_entitled_capacity);
-
- if (shared) {
- pool_id = HvLpConfig_getSharedPoolIndex();
- seq_printf(m, "pool=%d\n", (int)pool_id);
- seq_printf(m, "pool_capacity=%d\n",
- (int)(HvLpConfig_getNumProcsInSharedPool(pool_id) *
- 100));
- seq_printf(m, "purr=%ld\n", purr);
- }
-
- seq_printf(m, "shared_processor_mode=%d\n", shared);
-
- return 0;
-}
-#endif /* CONFIG_PPC_ISERIES */
-
-#ifdef CONFIG_PPC_PSERIES
-/*
- * Methods used to fetch LPAR data when running on a pSeries platform.
- */
-
-/*
- * H_GET_PPP hcall returns info in 4 parms.
- * entitled_capacity,unallocated_capacity,
- * aggregation, resource_capability).
- *
- * R4 = Entitled Processor Capacity Percentage.
- * R5 = Unallocated Processor Capacity Percentage.
- * R6 (AABBCCDDEEFFGGHH).
- * XXXX - reserved (0)
- * XXXX - reserved (0)
- * XXXX - Group Number
- * XXXX - Pool Number.
- * R7 (IIJJKKLLMMNNOOPP).
- * XX - reserved. (0)
- * XX - bit 0-6 reserved (0). bit 7 is Capped indicator.
- * XX - variable processor Capacity Weight
- * XX - Unallocated Variable Processor Capacity Weight.
- * XXXX - Active processors in Physical Processor Pool.
- * XXXX - Processors active on platform.
- */
-static unsigned int h_get_ppp(unsigned long *entitled,
- unsigned long *unallocated,
- unsigned long *aggregation,
- unsigned long *resource)
-{
- unsigned long rc;
- rc = plpar_hcall_4out(H_GET_PPP, 0, 0, 0, 0, entitled, unallocated,
- aggregation, resource);
-
- log_plpar_hcall_return(rc, "H_GET_PPP");
-
- return rc;
-}
-
-static void h_pic(unsigned long *pool_idle_time, unsigned long *num_procs)
-{
- unsigned long rc;
- unsigned long dummy;
- rc = plpar_hcall(H_PIC, 0, 0, 0, 0, pool_idle_time, num_procs, &dummy);
-
- log_plpar_hcall_return(rc, "H_PIC");
-}
-
-static unsigned long get_purr(void);
-
-/* Track sum of all purrs across all processors. This is used to further */
-/* calculate usage values by different applications */
-
-static unsigned long get_purr(void)
-{
- unsigned long sum_purr = 0;
- int cpu;
- struct cpu_usage *cu;
-
- for_each_cpu(cpu) {
- cu = &per_cpu(cpu_usage_array, cpu);
- sum_purr += cu->current_tb;
- }
- return sum_purr;
-}
-
-#define SPLPAR_CHARACTERISTICS_TOKEN 20
-#define SPLPAR_MAXLENGTH 1026*(sizeof(char))
-
-/*
- * parse_system_parameter_string()
- * Retrieve the potential_processors, max_entitled_capacity and friends
- * through the get-system-parameter rtas call. Replace keyword strings as
- * necessary.
- */
-static void parse_system_parameter_string(struct seq_file *m)
-{
- int call_status;
-
- char *local_buffer = kmalloc(SPLPAR_MAXLENGTH, GFP_KERNEL);
- if (!local_buffer) {
- printk(KERN_ERR "%s %s kmalloc failure at line %d \n",
- __FILE__, __FUNCTION__, __LINE__);
- return;
- }
-
- spin_lock(&rtas_data_buf_lock);
- memset(rtas_data_buf, 0, SPLPAR_MAXLENGTH);
- call_status = rtas_call(rtas_token("ibm,get-system-parameter"), 3, 1,
- NULL,
- SPLPAR_CHARACTERISTICS_TOKEN,
- __pa(rtas_data_buf));
- memcpy(local_buffer, rtas_data_buf, SPLPAR_MAXLENGTH);
- spin_unlock(&rtas_data_buf_lock);
-
- if (call_status != 0) {
- printk(KERN_INFO
- "%s %s Error calling get-system-parameter (0x%x)\n",
- __FILE__, __FUNCTION__, call_status);
- } else {
- int splpar_strlen;
- int idx, w_idx;
- char *workbuffer = kmalloc(SPLPAR_MAXLENGTH, GFP_KERNEL);
- if (!workbuffer) {
- printk(KERN_ERR "%s %s kmalloc failure at line %d \n",
- __FILE__, __FUNCTION__, __LINE__);
- kfree(local_buffer);
- return;
- }
-#ifdef LPARCFG_DEBUG
- printk(KERN_INFO "success calling get-system-parameter \n");
-#endif
- splpar_strlen = local_buffer[0] * 16 + local_buffer[1];
- local_buffer += 2; /* step over strlen value */
-
- memset(workbuffer, 0, SPLPAR_MAXLENGTH);
- w_idx = 0;
- idx = 0;
- while ((*local_buffer) && (idx < splpar_strlen)) {
- workbuffer[w_idx++] = local_buffer[idx++];
- if ((local_buffer[idx] == ',')
- || (local_buffer[idx] == '\0')) {
- workbuffer[w_idx] = '\0';
- if (w_idx) {
- /* avoid the empty string */
- seq_printf(m, "%s\n", workbuffer);
- }
- memset(workbuffer, 0, SPLPAR_MAXLENGTH);
- idx++; /* skip the comma */
- w_idx = 0;
- } else if (local_buffer[idx] == '=') {
- /* code here to replace workbuffer contents
- with different keyword strings */
- if (0 == strcmp(workbuffer, "MaxEntCap")) {
- strcpy(workbuffer,
- "partition_max_entitled_capacity");
- w_idx = strlen(workbuffer);
- }
- if (0 == strcmp(workbuffer, "MaxPlatProcs")) {
- strcpy(workbuffer,
- "system_potential_processors");
- w_idx = strlen(workbuffer);
- }
- }
- }
- kfree(workbuffer);
- local_buffer -= 2; /* back up over strlen value */
- }
- kfree(local_buffer);
-}
-
-static int lparcfg_count_active_processors(void);
-
-/* Return the number of processors in the system.
- * This function reads through the device tree and counts
- * the virtual processors, this does not include threads.
- */
-static int lparcfg_count_active_processors(void)
-{
- struct device_node *cpus_dn = NULL;
- int count = 0;
-
- while ((cpus_dn = of_find_node_by_type(cpus_dn, "cpu"))) {
-#ifdef LPARCFG_DEBUG
- printk(KERN_ERR "cpus_dn %p \n", cpus_dn);
-#endif
- count++;
- }
- return count;
-}
-
-static int lparcfg_data(struct seq_file *m, void *v)
-{
- int partition_potential_processors;
- int partition_active_processors;
- struct device_node *rootdn;
- const char *model = "";
- const char *system_id = "";
- unsigned int *lp_index_ptr, lp_index = 0;
- struct device_node *rtas_node;
- int *lrdrp;
-
- rootdn = find_path_device("/");
- if (rootdn) {
- model = get_property(rootdn, "model", NULL);
- system_id = get_property(rootdn, "system-id", NULL);
- lp_index_ptr = (unsigned int *)
- get_property(rootdn, "ibm,partition-no", NULL);
- if (lp_index_ptr)
- lp_index = *lp_index_ptr;
- }
-
- seq_printf(m, "%s %s \n", MODULE_NAME, MODULE_VERS);
-
- seq_printf(m, "serial_number=%s\n", system_id);
-
- seq_printf(m, "system_type=%s\n", model);
-
- seq_printf(m, "partition_id=%d\n", (int)lp_index);
-
- rtas_node = find_path_device("/rtas");
- lrdrp = (int *)get_property(rtas_node, "ibm,lrdr-capacity", NULL);
-
- if (lrdrp == NULL) {
- partition_potential_processors = _systemcfg->processorCount;
- } else {
- partition_potential_processors = *(lrdrp + 4);
- }
-
- partition_active_processors = lparcfg_count_active_processors();
-
- if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
- unsigned long h_entitled, h_unallocated;
- unsigned long h_aggregation, h_resource;
- unsigned long pool_idle_time, pool_procs;
- unsigned long purr;
-
- h_get_ppp(&h_entitled, &h_unallocated, &h_aggregation,
- &h_resource);
-
- seq_printf(m, "R4=0x%lx\n", h_entitled);
- seq_printf(m, "R5=0x%lx\n", h_unallocated);
- seq_printf(m, "R6=0x%lx\n", h_aggregation);
- seq_printf(m, "R7=0x%lx\n", h_resource);
-
- purr = get_purr();
-
- /* this call handles the ibm,get-system-parameter contents */
- parse_system_parameter_string(m);
-
- seq_printf(m, "partition_entitled_capacity=%ld\n", h_entitled);
-
- seq_printf(m, "group=%ld\n", (h_aggregation >> 2 * 8) & 0xffff);
-
- seq_printf(m, "system_active_processors=%ld\n",
- (h_resource >> 0 * 8) & 0xffff);
-
- /* pool related entries are apropriate for shared configs */
- if (paca[0].lppaca.shared_proc) {
-
- h_pic(&pool_idle_time, &pool_procs);
-
- seq_printf(m, "pool=%ld\n",
- (h_aggregation >> 0 * 8) & 0xffff);
-
- /* report pool_capacity in percentage */
- seq_printf(m, "pool_capacity=%ld\n",
- ((h_resource >> 2 * 8) & 0xffff) * 100);
-
- seq_printf(m, "pool_idle_time=%ld\n", pool_idle_time);
-
- seq_printf(m, "pool_num_procs=%ld\n", pool_procs);
- }
-
- seq_printf(m, "unallocated_capacity_weight=%ld\n",
- (h_resource >> 4 * 8) & 0xFF);
-
- seq_printf(m, "capacity_weight=%ld\n",
- (h_resource >> 5 * 8) & 0xFF);
-
- seq_printf(m, "capped=%ld\n", (h_resource >> 6 * 8) & 0x01);
-
- seq_printf(m, "unallocated_capacity=%ld\n", h_unallocated);
-
- seq_printf(m, "purr=%ld\n", purr);
-
- } else { /* non SPLPAR case */
-
- seq_printf(m, "system_active_processors=%d\n",
- partition_potential_processors);
-
- seq_printf(m, "system_potential_processors=%d\n",
- partition_potential_processors);
-
- seq_printf(m, "partition_max_entitled_capacity=%d\n",
- partition_potential_processors * 100);
-
- seq_printf(m, "partition_entitled_capacity=%d\n",
- partition_active_processors * 100);
- }
-
- seq_printf(m, "partition_active_processors=%d\n",
- partition_active_processors);
-
- seq_printf(m, "partition_potential_processors=%d\n",
- partition_potential_processors);
-
- seq_printf(m, "shared_processor_mode=%d\n", paca[0].lppaca.shared_proc);
-
- return 0;
-}
-
-/*
- * Interface for changing system parameters (variable capacity weight
- * and entitled capacity). Format of input is "param_name=value";
- * anything after value is ignored. Valid parameters at this time are
- * "partition_entitled_capacity" and "capacity_weight". We use
- * H_SET_PPP to alter parameters.
- *
- * This function should be invoked only on systems with
- * FW_FEATURE_SPLPAR.
- */
-static ssize_t lparcfg_write(struct file *file, const char __user * buf,
- size_t count, loff_t * off)
-{
- char *kbuf;
- char *tmp;
- u64 new_entitled, *new_entitled_ptr = &new_entitled;
- u8 new_weight, *new_weight_ptr = &new_weight;
-
- unsigned long current_entitled; /* parameters for h_get_ppp */
- unsigned long dummy;
- unsigned long resource;
- u8 current_weight;
-
- ssize_t retval = -ENOMEM;
-
- kbuf = kmalloc(count, GFP_KERNEL);
- if (!kbuf)
- goto out;
-
- retval = -EFAULT;
- if (copy_from_user(kbuf, buf, count))
- goto out;
-
- retval = -EINVAL;
- kbuf[count - 1] = '\0';
- tmp = strchr(kbuf, '=');
- if (!tmp)
- goto out;
-
- *tmp++ = '\0';
-
- if (!strcmp(kbuf, "partition_entitled_capacity")) {
- char *endp;
- *new_entitled_ptr = (u64) simple_strtoul(tmp, &endp, 10);
- if (endp == tmp)
- goto out;
- new_weight_ptr = ¤t_weight;
- } else if (!strcmp(kbuf, "capacity_weight")) {
- char *endp;
- *new_weight_ptr = (u8) simple_strtoul(tmp, &endp, 10);
- if (endp == tmp)
- goto out;
- new_entitled_ptr = ¤t_entitled;
- } else
- goto out;
-
- /* Get our current parameters */
- retval = h_get_ppp(¤t_entitled, &dummy, &dummy, &resource);
- if (retval) {
- retval = -EIO;
- goto out;
- }
-
- current_weight = (resource >> 5 * 8) & 0xFF;
-
- pr_debug("%s: current_entitled = %lu, current_weight = %lu\n",
- __FUNCTION__, current_entitled, current_weight);
-
- pr_debug("%s: new_entitled = %lu, new_weight = %lu\n",
- __FUNCTION__, *new_entitled_ptr, *new_weight_ptr);
-
- retval = plpar_hcall_norets(H_SET_PPP, *new_entitled_ptr,
- *new_weight_ptr);
-
- if (retval == H_Success || retval == H_Constrained) {
- retval = count;
- } else if (retval == H_Busy) {
- retval = -EBUSY;
- } else if (retval == H_Hardware) {
- retval = -EIO;
- } else if (retval == H_Parameter) {
- retval = -EINVAL;
- } else {
- printk(KERN_WARNING "%s: received unknown hv return code %ld",
- __FUNCTION__, retval);
- retval = -EIO;
- }
-
- out:
- kfree(kbuf);
- return retval;
-}
-
-#endif /* CONFIG_PPC_PSERIES */
-
-static int lparcfg_open(struct inode *inode, struct file *file)
-{
- return single_open(file, lparcfg_data, NULL);
-}
-
-struct file_operations lparcfg_fops = {
- .owner = THIS_MODULE,
- .read = seq_read,
- .open = lparcfg_open,
- .release = single_release,
-};
-
-int __init lparcfg_init(void)
-{
- struct proc_dir_entry *ent;
- mode_t mode = S_IRUSR | S_IRGRP | S_IROTH;
-
- /* Allow writing if we have FW_FEATURE_SPLPAR */
- if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
- lparcfg_fops.write = lparcfg_write;
- mode |= S_IWUSR;
- }
-
- ent = create_proc_entry("ppc64/lparcfg", mode, NULL);
- if (ent) {
- ent->proc_fops = &lparcfg_fops;
- ent->data = kmalloc(LPARCFG_BUFF_SIZE, GFP_KERNEL);
- if (!ent->data) {
- printk(KERN_ERR
- "Failed to allocate buffer for lparcfg\n");
- remove_proc_entry("lparcfg", ent->parent);
- return -ENOMEM;
- }
- } else {
- printk(KERN_ERR "Failed to create ppc64/lparcfg\n");
- return -EIO;
- }
-
- proc_ppc64_lparcfg = ent;
- return 0;
-}
-
-void __exit lparcfg_cleanup(void)
-{
- if (proc_ppc64_lparcfg) {
- kfree(proc_ppc64_lparcfg->data);
- remove_proc_entry("lparcfg", proc_ppc64_lparcfg->parent);
- }
-}
-
-module_init(lparcfg_init);
-module_exit(lparcfg_cleanup);
-MODULE_DESCRIPTION("Interface for LPAR configuration data");
-MODULE_AUTHOR("Dave Engebretsen");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * arch/ppc64/kernel/proc_ppc64.c
- *
- * Copyright (C) 2001 Mike Corrigan & Dave Engebretsen IBM Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/mm.h>
-#include <linux/proc_fs.h>
-#include <linux/slab.h>
-#include <linux/kernel.h>
-
-#include <asm/systemcfg.h>
-#include <asm/rtas.h>
-#include <asm/uaccess.h>
-#include <asm/prom.h>
-
-static loff_t page_map_seek( struct file *file, loff_t off, int whence);
-static ssize_t page_map_read( struct file *file, char __user *buf, size_t nbytes,
- loff_t *ppos);
-static int page_map_mmap( struct file *file, struct vm_area_struct *vma );
-
-static struct file_operations page_map_fops = {
- .llseek = page_map_seek,
- .read = page_map_read,
- .mmap = page_map_mmap
-};
-
-/*
- * Create the ppc64 and ppc64/rtas directories early. This allows us to
- * assume that they have been previously created in drivers.
- */
-static int __init proc_ppc64_create(void)
-{
- struct proc_dir_entry *root;
-
- root = proc_mkdir("ppc64", NULL);
- if (!root)
- return 1;
-
- if (!(platform_is_pseries() || _machine == PLATFORM_CELL))
- return 0;
-
- if (!proc_mkdir("rtas", root))
- return 1;
-
- if (!proc_symlink("rtas", NULL, "ppc64/rtas"))
- return 1;
-
- return 0;
-}
-core_initcall(proc_ppc64_create);
-
-static int __init proc_ppc64_init(void)
-{
- struct proc_dir_entry *pde;
-
- pde = create_proc_entry("ppc64/systemcfg", S_IFREG|S_IRUGO, NULL);
- if (!pde)
- return 1;
- pde->nlink = 1;
- pde->data = _systemcfg;
- pde->size = PAGE_SIZE;
- pde->proc_fops = &page_map_fops;
-
- return 0;
-}
-__initcall(proc_ppc64_init);
-
-static loff_t page_map_seek( struct file *file, loff_t off, int whence)
-{
- loff_t new;
- struct proc_dir_entry *dp = PDE(file->f_dentry->d_inode);
-
- switch(whence) {
- case 0:
- new = off;
- break;
- case 1:
- new = file->f_pos + off;
- break;
- case 2:
- new = dp->size + off;
- break;
- default:
- return -EINVAL;
- }
- if ( new < 0 || new > dp->size )
- return -EINVAL;
- return (file->f_pos = new);
-}
-
-static ssize_t page_map_read( struct file *file, char __user *buf, size_t nbytes,
- loff_t *ppos)
-{
- struct proc_dir_entry *dp = PDE(file->f_dentry->d_inode);
- return simple_read_from_buffer(buf, nbytes, ppos, dp->data, dp->size);
-}
-
-static int page_map_mmap( struct file *file, struct vm_area_struct *vma )
-{
- struct proc_dir_entry *dp = PDE(file->f_dentry->d_inode);
-
- vma->vm_flags |= VM_SHM | VM_LOCKED;
-
- if ((vma->vm_end - vma->vm_start) > dp->size)
- return -EINVAL;
-
- remap_pfn_range(vma, vma->vm_start, __pa(dp->data) >> PAGE_SHIFT,
- dp->size, vma->vm_page_prot);
- return 0;
-}
-
+++ /dev/null
-/*
- * arch/ppc64/kernel/rtas_pci.c
- *
- * Copyright (C) 2001 Dave Engebretsen, IBM Corporation
- * Copyright (C) 2003 Anton Blanchard <anton@au.ibm.com>, IBM
- *
- * RTAS specific routines for PCI.
- *
- * Based on code from pci.c, chrp_pci.c and pSeries_pci.c
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <linux/kernel.h>
-#include <linux/threads.h>
-#include <linux/pci.h>
-#include <linux/string.h>
-#include <linux/init.h>
-#include <linux/bootmem.h>
-
-#include <asm/io.h>
-#include <asm/pgtable.h>
-#include <asm/irq.h>
-#include <asm/prom.h>
-#include <asm/machdep.h>
-#include <asm/pci-bridge.h>
-#include <asm/iommu.h>
-#include <asm/rtas.h>
-#include <asm/mpic.h>
-#include <asm/ppc-pci.h>
-
-/* RTAS tokens */
-static int read_pci_config;
-static int write_pci_config;
-static int ibm_read_pci_config;
-static int ibm_write_pci_config;
-
-static inline int config_access_valid(struct pci_dn *dn, int where)
-{
- if (where < 256)
- return 1;
- if (where < 4096 && dn->pci_ext_config_space)
- return 1;
-
- return 0;
-}
-
-static int of_device_available(struct device_node * dn)
-{
- char * status;
-
- status = get_property(dn, "status", NULL);
-
- if (!status)
- return 1;
-
- if (!strcmp(status, "okay"))
- return 1;
-
- return 0;
-}
-
-static int rtas_read_config(struct pci_dn *pdn, int where, int size, u32 *val)
-{
- int returnval = -1;
- unsigned long buid, addr;
- int ret;
-
- if (!pdn)
- return PCIBIOS_DEVICE_NOT_FOUND;
- if (!config_access_valid(pdn, where))
- return PCIBIOS_BAD_REGISTER_NUMBER;
-
- addr = ((where & 0xf00) << 20) | (pdn->busno << 16) |
- (pdn->devfn << 8) | (where & 0xff);
- buid = pdn->phb->buid;
- if (buid) {
- ret = rtas_call(ibm_read_pci_config, 4, 2, &returnval,
- addr, BUID_HI(buid), BUID_LO(buid), size);
- } else {
- ret = rtas_call(read_pci_config, 2, 2, &returnval, addr, size);
- }
- *val = returnval;
-
- if (ret)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- if (returnval == EEH_IO_ERROR_VALUE(size) &&
- eeh_dn_check_failure (pdn->node, NULL))
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int rtas_pci_read_config(struct pci_bus *bus,
- unsigned int devfn,
- int where, int size, u32 *val)
-{
- struct device_node *busdn, *dn;
-
- if (bus->self)
- busdn = pci_device_to_OF_node(bus->self);
- else
- busdn = bus->sysdata; /* must be a phb */
-
- /* Search only direct children of the bus */
- for (dn = busdn->child; dn; dn = dn->sibling) {
- struct pci_dn *pdn = PCI_DN(dn);
- if (pdn && pdn->devfn == devfn
- && of_device_available(dn))
- return rtas_read_config(pdn, where, size, val);
- }
-
- return PCIBIOS_DEVICE_NOT_FOUND;
-}
-
-int rtas_write_config(struct pci_dn *pdn, int where, int size, u32 val)
-{
- unsigned long buid, addr;
- int ret;
-
- if (!pdn)
- return PCIBIOS_DEVICE_NOT_FOUND;
- if (!config_access_valid(pdn, where))
- return PCIBIOS_BAD_REGISTER_NUMBER;
-
- addr = ((where & 0xf00) << 20) | (pdn->busno << 16) |
- (pdn->devfn << 8) | (where & 0xff);
- buid = pdn->phb->buid;
- if (buid) {
- ret = rtas_call(ibm_write_pci_config, 5, 1, NULL, addr,
- BUID_HI(buid), BUID_LO(buid), size, (ulong) val);
- } else {
- ret = rtas_call(write_pci_config, 3, 1, NULL, addr, size, (ulong)val);
- }
-
- if (ret)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int rtas_pci_write_config(struct pci_bus *bus,
- unsigned int devfn,
- int where, int size, u32 val)
-{
- struct device_node *busdn, *dn;
-
- if (bus->self)
- busdn = pci_device_to_OF_node(bus->self);
- else
- busdn = bus->sysdata; /* must be a phb */
-
- /* Search only direct children of the bus */
- for (dn = busdn->child; dn; dn = dn->sibling) {
- struct pci_dn *pdn = PCI_DN(dn);
- if (pdn && pdn->devfn == devfn
- && of_device_available(dn))
- return rtas_write_config(pdn, where, size, val);
- }
- return PCIBIOS_DEVICE_NOT_FOUND;
-}
-
-struct pci_ops rtas_pci_ops = {
- rtas_pci_read_config,
- rtas_pci_write_config
-};
-
-int is_python(struct device_node *dev)
-{
- char *model = (char *)get_property(dev, "model", NULL);
-
- if (model && strstr(model, "Python"))
- return 1;
-
- return 0;
-}
-
-static int get_phb_reg_prop(struct device_node *dev,
- unsigned int addr_size_words,
- struct reg_property64 *reg)
-{
- unsigned int *ui_ptr = NULL, len;
-
- /* Found a PHB, now figure out where his registers are mapped. */
- ui_ptr = (unsigned int *)get_property(dev, "reg", &len);
- if (ui_ptr == NULL)
- return 1;
-
- if (addr_size_words == 1) {
- reg->address = ((struct reg_property32 *)ui_ptr)->address;
- reg->size = ((struct reg_property32 *)ui_ptr)->size;
- } else {
- *reg = *((struct reg_property64 *)ui_ptr);
- }
-
- return 0;
-}
-
-static void python_countermeasures(struct device_node *dev,
- unsigned int addr_size_words)
-{
- struct reg_property64 reg_struct;
- void __iomem *chip_regs;
- volatile u32 val;
-
- if (get_phb_reg_prop(dev, addr_size_words, ®_struct))
- return;
-
- /* Python's register file is 1 MB in size. */
- chip_regs = ioremap(reg_struct.address & ~(0xfffffUL), 0x100000);
-
- /*
- * Firmware doesn't always clear this bit which is critical
- * for good performance - Anton
- */
-
-#define PRG_CL_RESET_VALID 0x00010000
-
- val = in_be32(chip_regs + 0xf6030);
- if (val & PRG_CL_RESET_VALID) {
- printk(KERN_INFO "Python workaround: ");
- val &= ~PRG_CL_RESET_VALID;
- out_be32(chip_regs + 0xf6030, val);
- /*
- * We must read it back for changes to
- * take effect
- */
- val = in_be32(chip_regs + 0xf6030);
- printk("reg0: %x\n", val);
- }
-
- iounmap(chip_regs);
-}
-
-void __init init_pci_config_tokens (void)
-{
- read_pci_config = rtas_token("read-pci-config");
- write_pci_config = rtas_token("write-pci-config");
- ibm_read_pci_config = rtas_token("ibm,read-pci-config");
- ibm_write_pci_config = rtas_token("ibm,write-pci-config");
-}
-
-unsigned long __devinit get_phb_buid (struct device_node *phb)
-{
- int addr_cells;
- unsigned int *buid_vals;
- unsigned int len;
- unsigned long buid;
-
- if (ibm_read_pci_config == -1) return 0;
-
- /* PHB's will always be children of the root node,
- * or so it is promised by the current firmware. */
- if (phb->parent == NULL)
- return 0;
- if (phb->parent->parent)
- return 0;
-
- buid_vals = (unsigned int *) get_property(phb, "reg", &len);
- if (buid_vals == NULL)
- return 0;
-
- addr_cells = prom_n_addr_cells(phb);
- if (addr_cells == 1) {
- buid = (unsigned long) buid_vals[0];
- } else {
- buid = (((unsigned long)buid_vals[0]) << 32UL) |
- (((unsigned long)buid_vals[1]) & 0xffffffff);
- }
- return buid;
-}
-
-static int phb_set_bus_ranges(struct device_node *dev,
- struct pci_controller *phb)
-{
- int *bus_range;
- unsigned int len;
-
- bus_range = (int *) get_property(dev, "bus-range", &len);
- if (bus_range == NULL || len < 2 * sizeof(int)) {
- return 1;
- }
-
- phb->first_busno = bus_range[0];
- phb->last_busno = bus_range[1];
-
- return 0;
-}
-
-static int __devinit setup_phb(struct device_node *dev,
- struct pci_controller *phb,
- unsigned int addr_size_words)
-{
- pci_setup_pci_controller(phb);
-
- if (is_python(dev))
- python_countermeasures(dev, addr_size_words);
-
- if (phb_set_bus_ranges(dev, phb))
- return 1;
-
- phb->arch_data = dev;
- phb->ops = &rtas_pci_ops;
- phb->buid = get_phb_buid(dev);
-
- return 0;
-}
-
-static void __devinit add_linux_pci_domain(struct device_node *dev,
- struct pci_controller *phb,
- struct property *of_prop)
-{
- memset(of_prop, 0, sizeof(struct property));
- of_prop->name = "linux,pci-domain";
- of_prop->length = sizeof(phb->global_number);
- of_prop->value = (unsigned char *)&of_prop[1];
- memcpy(of_prop->value, &phb->global_number, sizeof(phb->global_number));
- prom_add_property(dev, of_prop);
-}
-
-static struct pci_controller * __init alloc_phb(struct device_node *dev,
- unsigned int addr_size_words)
-{
- struct pci_controller *phb;
- struct property *of_prop;
-
- phb = alloc_bootmem(sizeof(struct pci_controller));
- if (phb == NULL)
- return NULL;
-
- of_prop = alloc_bootmem(sizeof(struct property) +
- sizeof(phb->global_number));
- if (!of_prop)
- return NULL;
-
- if (setup_phb(dev, phb, addr_size_words))
- return NULL;
-
- add_linux_pci_domain(dev, phb, of_prop);
-
- return phb;
-}
-
-static struct pci_controller * __devinit alloc_phb_dynamic(struct device_node *dev, unsigned int addr_size_words)
-{
- struct pci_controller *phb;
-
- phb = (struct pci_controller *)kmalloc(sizeof(struct pci_controller),
- GFP_KERNEL);
- if (phb == NULL)
- return NULL;
-
- if (setup_phb(dev, phb, addr_size_words))
- return NULL;
-
- phb->is_dynamic = 1;
-
- /* TODO: linux,pci-domain? */
-
- return phb;
-}
-
-unsigned long __init find_and_init_phbs(void)
-{
- struct device_node *node;
- struct pci_controller *phb;
- unsigned int root_size_cells = 0;
- unsigned int index;
- unsigned int *opprop = NULL;
- struct device_node *root = of_find_node_by_path("/");
-
- if (ppc64_interrupt_controller == IC_OPEN_PIC) {
- opprop = (unsigned int *)get_property(root,
- "platform-open-pic", NULL);
- }
-
- root_size_cells = prom_n_size_cells(root);
-
- index = 0;
-
- for (node = of_get_next_child(root, NULL);
- node != NULL;
- node = of_get_next_child(root, node)) {
- if (node->type == NULL || strcmp(node->type, "pci") != 0)
- continue;
-
- phb = alloc_phb(node, root_size_cells);
- if (!phb)
- continue;
-
- pci_process_bridge_OF_ranges(phb, node, 0);
- pci_setup_phb_io(phb, index == 0);
-#ifdef CONFIG_PPC_PSERIES
- if (ppc64_interrupt_controller == IC_OPEN_PIC && pSeries_mpic) {
- int addr = root_size_cells * (index + 2) - 1;
- mpic_assign_isu(pSeries_mpic, index, opprop[addr]);
- }
-#endif
- index++;
- }
-
- of_node_put(root);
- pci_devs_phb_init();
-
- /*
- * pci_probe_only and pci_assign_all_buses can be set via properties
- * in chosen.
- */
- if (of_chosen) {
- int *prop;
-
- prop = (int *)get_property(of_chosen, "linux,pci-probe-only",
- NULL);
- if (prop)
- pci_probe_only = *prop;
-
- prop = (int *)get_property(of_chosen,
- "linux,pci-assign-all-buses", NULL);
- if (prop)
- pci_assign_all_buses = *prop;
- }
-
- return 0;
-}
-
-struct pci_controller * __devinit init_phb_dynamic(struct device_node *dn)
-{
- struct device_node *root = of_find_node_by_path("/");
- unsigned int root_size_cells = 0;
- struct pci_controller *phb;
- int primary;
-
- root_size_cells = prom_n_size_cells(root);
-
- primary = list_empty(&hose_list);
- phb = alloc_phb_dynamic(dn, root_size_cells);
- if (!phb)
- return NULL;
-
- pci_process_bridge_OF_ranges(phb, dn, primary);
-
- pci_setup_phb_io_dynamic(phb, primary);
- of_node_put(root);
-
- pci_devs_phb_init_dynamic(phb);
- scan_phb(phb);
-
- return phb;
-}
-EXPORT_SYMBOL(init_phb_dynamic);
-
-/* RPA-specific bits for removing PHBs */
-int pcibios_remove_root_bus(struct pci_controller *phb)
-{
- struct pci_bus *b = phb->bus;
- struct resource *res;
- int rc, i;
-
- res = b->resource[0];
- if (!res->flags) {
- printk(KERN_ERR "%s: no IO resource for PHB %s\n", __FUNCTION__,
- b->name);
- return 1;
- }
-
- rc = unmap_bus_range(b);
- if (rc) {
- printk(KERN_ERR "%s: failed to unmap IO on bus %s\n",
- __FUNCTION__, b->name);
- return 1;
- }
-
- if (release_resource(res)) {
- printk(KERN_ERR "%s: failed to release IO on bus %s\n",
- __FUNCTION__, b->name);
- return 1;
- }
-
- for (i = 1; i < 3; ++i) {
- res = b->resource[i];
- if (!res->flags && i == 0) {
- printk(KERN_ERR "%s: no MEM resource for PHB %s\n",
- __FUNCTION__, b->name);
- return 1;
- }
- if (res->flags && release_resource(res)) {
- printk(KERN_ERR
- "%s: failed to release IO %d on bus %s\n",
- __FUNCTION__, i, b->name);
- return 1;
- }
- }
-
- list_del(&phb->list_node);
- if (phb->is_dynamic)
- kfree(phb);
-
- return 0;
-}
-EXPORT_SYMBOL(pcibios_remove_root_bus);
+++ /dev/null
-#include <linux/config.h>
-#include <linux/sysdev.h>
-#include <linux/cpu.h>
-#include <linux/smp.h>
-#include <linux/percpu.h>
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/module.h>
-#include <linux/nodemask.h>
-#include <linux/cpumask.h>
-#include <linux/notifier.h>
-
-#include <asm/current.h>
-#include <asm/processor.h>
-#include <asm/cputable.h>
-#include <asm/firmware.h>
-#include <asm/hvcall.h>
-#include <asm/prom.h>
-#include <asm/systemcfg.h>
-#include <asm/paca.h>
-#include <asm/lppaca.h>
-#include <asm/machdep.h>
-#include <asm/smp.h>
-
-static DEFINE_PER_CPU(struct cpu, cpu_devices);
-
-/* SMT stuff */
-
-#ifdef CONFIG_PPC_MULTIPLATFORM
-/* default to snooze disabled */
-DEFINE_PER_CPU(unsigned long, smt_snooze_delay);
-
-static ssize_t store_smt_snooze_delay(struct sys_device *dev, const char *buf,
- size_t count)
-{
- struct cpu *cpu = container_of(dev, struct cpu, sysdev);
- ssize_t ret;
- unsigned long snooze;
-
- ret = sscanf(buf, "%lu", &snooze);
- if (ret != 1)
- return -EINVAL;
-
- per_cpu(smt_snooze_delay, cpu->sysdev.id) = snooze;
-
- return count;
-}
-
-static ssize_t show_smt_snooze_delay(struct sys_device *dev, char *buf)
-{
- struct cpu *cpu = container_of(dev, struct cpu, sysdev);
-
- return sprintf(buf, "%lu\n", per_cpu(smt_snooze_delay, cpu->sysdev.id));
-}
-
-static SYSDEV_ATTR(smt_snooze_delay, 0644, show_smt_snooze_delay,
- store_smt_snooze_delay);
-
-/* Only parse OF options if the matching cmdline option was not specified */
-static int smt_snooze_cmdline;
-
-static int __init smt_setup(void)
-{
- struct device_node *options;
- unsigned int *val;
- unsigned int cpu;
-
- if (!cpu_has_feature(CPU_FTR_SMT))
- return 1;
-
- options = find_path_device("/options");
- if (!options)
- return 1;
-
- val = (unsigned int *)get_property(options, "ibm,smt-snooze-delay",
- NULL);
- if (!smt_snooze_cmdline && val) {
- for_each_cpu(cpu)
- per_cpu(smt_snooze_delay, cpu) = *val;
- }
-
- return 1;
-}
-__initcall(smt_setup);
-
-static int __init setup_smt_snooze_delay(char *str)
-{
- unsigned int cpu;
- int snooze;
-
- if (!cpu_has_feature(CPU_FTR_SMT))
- return 1;
-
- smt_snooze_cmdline = 1;
-
- if (get_option(&str, &snooze)) {
- for_each_cpu(cpu)
- per_cpu(smt_snooze_delay, cpu) = snooze;
- }
-
- return 1;
-}
-__setup("smt-snooze-delay=", setup_smt_snooze_delay);
-
-#endif /* CONFIG_PPC_MULTIPLATFORM */
-
-/*
- * Enabling PMCs will slow partition context switch times so we only do
- * it the first time we write to the PMCs.
- */
-
-static DEFINE_PER_CPU(char, pmcs_enabled);
-
-void ppc64_enable_pmcs(void)
-{
- /* Only need to enable them once */
- if (__get_cpu_var(pmcs_enabled))
- return;
-
- __get_cpu_var(pmcs_enabled) = 1;
-
- if (ppc_md.enable_pmcs)
- ppc_md.enable_pmcs();
-}
-EXPORT_SYMBOL(ppc64_enable_pmcs);
-
-/* XXX convert to rusty's on_one_cpu */
-static unsigned long run_on_cpu(unsigned long cpu,
- unsigned long (*func)(unsigned long),
- unsigned long arg)
-{
- cpumask_t old_affinity = current->cpus_allowed;
- unsigned long ret;
-
- /* should return -EINVAL to userspace */
- if (set_cpus_allowed(current, cpumask_of_cpu(cpu)))
- return 0;
-
- ret = func(arg);
-
- set_cpus_allowed(current, old_affinity);
-
- return ret;
-}
-
-#define SYSFS_PMCSETUP(NAME, ADDRESS) \
-static unsigned long read_##NAME(unsigned long junk) \
-{ \
- return mfspr(ADDRESS); \
-} \
-static unsigned long write_##NAME(unsigned long val) \
-{ \
- ppc64_enable_pmcs(); \
- mtspr(ADDRESS, val); \
- return 0; \
-} \
-static ssize_t show_##NAME(struct sys_device *dev, char *buf) \
-{ \
- struct cpu *cpu = container_of(dev, struct cpu, sysdev); \
- unsigned long val = run_on_cpu(cpu->sysdev.id, read_##NAME, 0); \
- return sprintf(buf, "%lx\n", val); \
-} \
-static ssize_t __attribute_used__ \
- store_##NAME(struct sys_device *dev, const char *buf, size_t count) \
-{ \
- struct cpu *cpu = container_of(dev, struct cpu, sysdev); \
- unsigned long val; \
- int ret = sscanf(buf, "%lx", &val); \
- if (ret != 1) \
- return -EINVAL; \
- run_on_cpu(cpu->sysdev.id, write_##NAME, val); \
- return count; \
-}
-
-SYSFS_PMCSETUP(mmcr0, SPRN_MMCR0);
-SYSFS_PMCSETUP(mmcr1, SPRN_MMCR1);
-SYSFS_PMCSETUP(mmcra, SPRN_MMCRA);
-SYSFS_PMCSETUP(pmc1, SPRN_PMC1);
-SYSFS_PMCSETUP(pmc2, SPRN_PMC2);
-SYSFS_PMCSETUP(pmc3, SPRN_PMC3);
-SYSFS_PMCSETUP(pmc4, SPRN_PMC4);
-SYSFS_PMCSETUP(pmc5, SPRN_PMC5);
-SYSFS_PMCSETUP(pmc6, SPRN_PMC6);
-SYSFS_PMCSETUP(pmc7, SPRN_PMC7);
-SYSFS_PMCSETUP(pmc8, SPRN_PMC8);
-SYSFS_PMCSETUP(purr, SPRN_PURR);
-
-static SYSDEV_ATTR(mmcr0, 0600, show_mmcr0, store_mmcr0);
-static SYSDEV_ATTR(mmcr1, 0600, show_mmcr1, store_mmcr1);
-static SYSDEV_ATTR(mmcra, 0600, show_mmcra, store_mmcra);
-static SYSDEV_ATTR(pmc1, 0600, show_pmc1, store_pmc1);
-static SYSDEV_ATTR(pmc2, 0600, show_pmc2, store_pmc2);
-static SYSDEV_ATTR(pmc3, 0600, show_pmc3, store_pmc3);
-static SYSDEV_ATTR(pmc4, 0600, show_pmc4, store_pmc4);
-static SYSDEV_ATTR(pmc5, 0600, show_pmc5, store_pmc5);
-static SYSDEV_ATTR(pmc6, 0600, show_pmc6, store_pmc6);
-static SYSDEV_ATTR(pmc7, 0600, show_pmc7, store_pmc7);
-static SYSDEV_ATTR(pmc8, 0600, show_pmc8, store_pmc8);
-static SYSDEV_ATTR(purr, 0600, show_purr, NULL);
-
-static void register_cpu_online(unsigned int cpu)
-{
- struct cpu *c = &per_cpu(cpu_devices, cpu);
- struct sys_device *s = &c->sysdev;
-
-#ifndef CONFIG_PPC_ISERIES
- if (cpu_has_feature(CPU_FTR_SMT))
- sysdev_create_file(s, &attr_smt_snooze_delay);
-#endif
-
- /* PMC stuff */
-
- sysdev_create_file(s, &attr_mmcr0);
- sysdev_create_file(s, &attr_mmcr1);
-
- if (cpu_has_feature(CPU_FTR_MMCRA))
- sysdev_create_file(s, &attr_mmcra);
-
- if (cur_cpu_spec->num_pmcs >= 1)
- sysdev_create_file(s, &attr_pmc1);
- if (cur_cpu_spec->num_pmcs >= 2)
- sysdev_create_file(s, &attr_pmc2);
- if (cur_cpu_spec->num_pmcs >= 3)
- sysdev_create_file(s, &attr_pmc3);
- if (cur_cpu_spec->num_pmcs >= 4)
- sysdev_create_file(s, &attr_pmc4);
- if (cur_cpu_spec->num_pmcs >= 5)
- sysdev_create_file(s, &attr_pmc5);
- if (cur_cpu_spec->num_pmcs >= 6)
- sysdev_create_file(s, &attr_pmc6);
- if (cur_cpu_spec->num_pmcs >= 7)
- sysdev_create_file(s, &attr_pmc7);
- if (cur_cpu_spec->num_pmcs >= 8)
- sysdev_create_file(s, &attr_pmc8);
-
- if (cpu_has_feature(CPU_FTR_SMT))
- sysdev_create_file(s, &attr_purr);
-}
-
-#ifdef CONFIG_HOTPLUG_CPU
-static void unregister_cpu_online(unsigned int cpu)
-{
- struct cpu *c = &per_cpu(cpu_devices, cpu);
- struct sys_device *s = &c->sysdev;
-
- BUG_ON(c->no_control);
-
-#ifndef CONFIG_PPC_ISERIES
- if (cpu_has_feature(CPU_FTR_SMT))
- sysdev_remove_file(s, &attr_smt_snooze_delay);
-#endif
-
- /* PMC stuff */
-
- sysdev_remove_file(s, &attr_mmcr0);
- sysdev_remove_file(s, &attr_mmcr1);
-
- if (cpu_has_feature(CPU_FTR_MMCRA))
- sysdev_remove_file(s, &attr_mmcra);
-
- if (cur_cpu_spec->num_pmcs >= 1)
- sysdev_remove_file(s, &attr_pmc1);
- if (cur_cpu_spec->num_pmcs >= 2)
- sysdev_remove_file(s, &attr_pmc2);
- if (cur_cpu_spec->num_pmcs >= 3)
- sysdev_remove_file(s, &attr_pmc3);
- if (cur_cpu_spec->num_pmcs >= 4)
- sysdev_remove_file(s, &attr_pmc4);
- if (cur_cpu_spec->num_pmcs >= 5)
- sysdev_remove_file(s, &attr_pmc5);
- if (cur_cpu_spec->num_pmcs >= 6)
- sysdev_remove_file(s, &attr_pmc6);
- if (cur_cpu_spec->num_pmcs >= 7)
- sysdev_remove_file(s, &attr_pmc7);
- if (cur_cpu_spec->num_pmcs >= 8)
- sysdev_remove_file(s, &attr_pmc8);
-
- if (cpu_has_feature(CPU_FTR_SMT))
- sysdev_remove_file(s, &attr_purr);
-}
-#endif /* CONFIG_HOTPLUG_CPU */
-
-static int __devinit sysfs_cpu_notify(struct notifier_block *self,
- unsigned long action, void *hcpu)
-{
- unsigned int cpu = (unsigned int)(long)hcpu;
-
- switch (action) {
- case CPU_ONLINE:
- register_cpu_online(cpu);
- break;
-#ifdef CONFIG_HOTPLUG_CPU
- case CPU_DEAD:
- unregister_cpu_online(cpu);
- break;
-#endif
- }
- return NOTIFY_OK;
-}
-
-static struct notifier_block __devinitdata sysfs_cpu_nb = {
- .notifier_call = sysfs_cpu_notify,
-};
-
-/* NUMA stuff */
-
-#ifdef CONFIG_NUMA
-static struct node node_devices[MAX_NUMNODES];
-
-static void register_nodes(void)
-{
- int i;
-
- for (i = 0; i < MAX_NUMNODES; i++) {
- if (node_online(i)) {
- int p_node = parent_node(i);
- struct node *parent = NULL;
-
- if (p_node != i)
- parent = &node_devices[p_node];
-
- register_node(&node_devices[i], i, parent);
- }
- }
-}
-#else
-static void register_nodes(void)
-{
- return;
-}
-#endif
-
-/* Only valid if CPU is present. */
-static ssize_t show_physical_id(struct sys_device *dev, char *buf)
-{
- struct cpu *cpu = container_of(dev, struct cpu, sysdev);
-
- return sprintf(buf, "%d\n", get_hard_smp_processor_id(cpu->sysdev.id));
-}
-static SYSDEV_ATTR(physical_id, 0444, show_physical_id, NULL);
-
-static int __init topology_init(void)
-{
- int cpu;
- struct node *parent = NULL;
-
- register_nodes();
-
- register_cpu_notifier(&sysfs_cpu_nb);
-
- for_each_cpu(cpu) {
- struct cpu *c = &per_cpu(cpu_devices, cpu);
-
-#ifdef CONFIG_NUMA
- /* The node to which a cpu belongs can't be known
- * until the cpu is made present.
- */
- parent = NULL;
- if (cpu_present(cpu))
- parent = &node_devices[cpu_to_node(cpu)];
-#endif
- /*
- * For now, we just see if the system supports making
- * the RTAS calls for CPU hotplug. But, there may be a
- * more comprehensive way to do this for an individual
- * CPU. For instance, the boot cpu might never be valid
- * for hotplugging.
- */
- if (!ppc_md.cpu_die)
- c->no_control = 1;
-
- if (cpu_online(cpu) || (c->no_control == 0)) {
- register_cpu(c, cpu, parent);
-
- sysdev_create_file(&c->sysdev, &attr_physical_id);
- }
-
- if (cpu_online(cpu))
- register_cpu_online(cpu);
- }
-
- return 0;
-}
-__initcall(topology_init);
--- /dev/null
+#ifndef _ASM_POWERPC_HVCALL_H
+#define _ASM_POWERPC_HVCALL_H
+
+#define HVSC .long 0x44000022
+
+#define H_Success 0
+#define H_Busy 1 /* Hardware busy -- retry later */
+#define H_Constrained 4 /* Resource request constrained to max allowed */
+#define H_LongBusyStartRange 9900 /* Start of long busy range */
+#define H_LongBusyOrder1msec 9900 /* Long busy, hint that 1msec is a good time to retry */
+#define H_LongBusyOrder10msec 9901 /* Long busy, hint that 10msec is a good time to retry */
+#define H_LongBusyOrder100msec 9902 /* Long busy, hint that 100msec is a good time to retry */
+#define H_LongBusyOrder1sec 9903 /* Long busy, hint that 1sec is a good time to retry */
+#define H_LongBusyOrder10sec 9904 /* Long busy, hint that 10sec is a good time to retry */
+#define H_LongBusyOrder100sec 9905 /* Long busy, hint that 100sec is a good time to retry */
+#define H_LongBusyEndRange 9905 /* End of long busy range */
+#define H_Hardware -1 /* Hardware error */
+#define H_Function -2 /* Function not supported */
+#define H_Privilege -3 /* Caller not privileged */
+#define H_Parameter -4 /* Parameter invalid, out-of-range or conflicting */
+#define H_Bad_Mode -5 /* Illegal msr value */
+#define H_PTEG_Full -6 /* PTEG is full */
+#define H_Not_Found -7 /* PTE was not found" */
+#define H_Reserved_DABR -8 /* DABR address is reserved by the hypervisor on this processor" */
+#define H_NoMem -9
+#define H_Authority -10
+#define H_Permission -11
+#define H_Dropped -12
+#define H_SourceParm -13
+#define H_DestParm -14
+#define H_RemoteParm -15
+#define H_Resource -16
+
+/* Long Busy is a condition that can be returned by the firmware
+ * when a call cannot be completed now, but the identical call
+ * should be retried later. This prevents calls blocking in the
+ * firmware for long periods of time. Annoyingly the firmware can return
+ * a range of return codes, hinting at how long we should wait before
+ * retrying. If you don't care for the hint, the macro below is a good
+ * way to check for the long_busy return codes
+ */
+#define H_isLongBusy(x) ((x >= H_LongBusyStartRange) && (x <= H_LongBusyEndRange))
+
+/* Flags */
+#define H_LARGE_PAGE (1UL<<(63-16))
+#define H_EXACT (1UL<<(63-24)) /* Use exact PTE or return H_PTEG_FULL */
+#define H_R_XLATE (1UL<<(63-25)) /* include a valid logical page num in the pte if the valid bit is set */
+#define H_READ_4 (1UL<<(63-26)) /* Return 4 PTEs */
+#define H_AVPN (1UL<<(63-32)) /* An avpn is provided as a sanity test */
+#define H_ANDCOND (1UL<<(63-33))
+#define H_ICACHE_INVALIDATE (1UL<<(63-40)) /* icbi, etc. (ignored for IO pages) */
+#define H_ICACHE_SYNCHRONIZE (1UL<<(63-41)) /* dcbst, icbi, etc (ignored for IO pages */
+#define H_ZERO_PAGE (1UL<<(63-48)) /* zero the page before mapping (ignored for IO pages) */
+#define H_COPY_PAGE (1UL<<(63-49))
+#define H_N (1UL<<(63-61))
+#define H_PP1 (1UL<<(63-62))
+#define H_PP2 (1UL<<(63-63))
+
+/* DABRX flags */
+#define H_DABRX_HYPERVISOR (1UL<<(63-61))
+#define H_DABRX_KERNEL (1UL<<(63-62))
+#define H_DABRX_USER (1UL<<(63-63))
+
+/* pSeries hypervisor opcodes */
+#define H_REMOVE 0x04
+#define H_ENTER 0x08
+#define H_READ 0x0c
+#define H_CLEAR_MOD 0x10
+#define H_CLEAR_REF 0x14
+#define H_PROTECT 0x18
+#define H_GET_TCE 0x1c
+#define H_PUT_TCE 0x20
+#define H_SET_SPRG0 0x24
+#define H_SET_DABR 0x28
+#define H_PAGE_INIT 0x2c
+#define H_SET_ASR 0x30
+#define H_ASR_ON 0x34
+#define H_ASR_OFF 0x38
+#define H_LOGICAL_CI_LOAD 0x3c
+#define H_LOGICAL_CI_STORE 0x40
+#define H_LOGICAL_CACHE_LOAD 0x44
+#define H_LOGICAL_CACHE_STORE 0x48
+#define H_LOGICAL_ICBI 0x4c
+#define H_LOGICAL_DCBF 0x50
+#define H_GET_TERM_CHAR 0x54
+#define H_PUT_TERM_CHAR 0x58
+#define H_REAL_TO_LOGICAL 0x5c
+#define H_HYPERVISOR_DATA 0x60
+#define H_EOI 0x64
+#define H_CPPR 0x68
+#define H_IPI 0x6c
+#define H_IPOLL 0x70
+#define H_XIRR 0x74
+#define H_PERFMON 0x7c
+#define H_MIGRATE_DMA 0x78
+#define H_REGISTER_VPA 0xDC
+#define H_CEDE 0xE0
+#define H_CONFER 0xE4
+#define H_PROD 0xE8
+#define H_GET_PPP 0xEC
+#define H_SET_PPP 0xF0
+#define H_PURR 0xF4
+#define H_PIC 0xF8
+#define H_REG_CRQ 0xFC
+#define H_FREE_CRQ 0x100
+#define H_VIO_SIGNAL 0x104
+#define H_SEND_CRQ 0x108
+#define H_COPY_RDMA 0x110
+#define H_SET_XDABR 0x134
+#define H_STUFF_TCE 0x138
+#define H_PUT_TCE_INDIRECT 0x13C
+#define H_VTERM_PARTNER_INFO 0x150
+#define H_REGISTER_VTERM 0x154
+#define H_FREE_VTERM 0x158
+#define H_POLL_PENDING 0x1D8
+
+#ifndef __ASSEMBLY__
+
+/* plpar_hcall() -- Generic call interface using above opcodes
+ *
+ * The actual call interface is a hypervisor call instruction with
+ * the opcode in R3 and input args in R4-R7.
+ * Status is returned in R3 with variable output values in R4-R11.
+ * Only H_PTE_READ with H_READ_4 uses R6-R11 so we ignore it for now
+ * and return only two out args which MUST ALWAYS BE PROVIDED.
+ */
+long plpar_hcall(unsigned long opcode,
+ unsigned long arg1,
+ unsigned long arg2,
+ unsigned long arg3,
+ unsigned long arg4,
+ unsigned long *out1,
+ unsigned long *out2,
+ unsigned long *out3);
+
+/* Same as plpar_hcall but for those opcodes that return no values
+ * other than status. Slightly more efficient.
+ */
+long plpar_hcall_norets(unsigned long opcode, ...);
+
+/*
+ * Special hcall interface for ibmveth support.
+ * Takes 8 input parms. Returns a rc and stores the
+ * R4 return value in *out1.
+ */
+long plpar_hcall_8arg_2ret(unsigned long opcode,
+ unsigned long arg1,
+ unsigned long arg2,
+ unsigned long arg3,
+ unsigned long arg4,
+ unsigned long arg5,
+ unsigned long arg6,
+ unsigned long arg7,
+ unsigned long arg8,
+ unsigned long *out1);
+
+/* plpar_hcall_4out()
+ *
+ * same as plpar_hcall except with 4 output arguments.
+ *
+ */
+long plpar_hcall_4out(unsigned long opcode,
+ unsigned long arg1,
+ unsigned long arg2,
+ unsigned long arg3,
+ unsigned long arg4,
+ unsigned long *out1,
+ unsigned long *out2,
+ unsigned long *out3,
+ unsigned long *out4);
+
+#endif /* __ASSEMBLY__ */
+#endif /* _ASM_POWERPC_HVCALL_H */
+++ /dev/null
-#ifndef _PPC64_HVCALL_H
-#define _PPC64_HVCALL_H
-
-#define HVSC .long 0x44000022
-
-#define H_Success 0
-#define H_Busy 1 /* Hardware busy -- retry later */
-#define H_Constrained 4 /* Resource request constrained to max allowed */
-#define H_LongBusyStartRange 9900 /* Start of long busy range */
-#define H_LongBusyOrder1msec 9900 /* Long busy, hint that 1msec is a good time to retry */
-#define H_LongBusyOrder10msec 9901 /* Long busy, hint that 10msec is a good time to retry */
-#define H_LongBusyOrder100msec 9902 /* Long busy, hint that 100msec is a good time to retry */
-#define H_LongBusyOrder1sec 9903 /* Long busy, hint that 1sec is a good time to retry */
-#define H_LongBusyOrder10sec 9904 /* Long busy, hint that 10sec is a good time to retry */
-#define H_LongBusyOrder100sec 9905 /* Long busy, hint that 100sec is a good time to retry */
-#define H_LongBusyEndRange 9905 /* End of long busy range */
-#define H_Hardware -1 /* Hardware error */
-#define H_Function -2 /* Function not supported */
-#define H_Privilege -3 /* Caller not privileged */
-#define H_Parameter -4 /* Parameter invalid, out-of-range or conflicting */
-#define H_Bad_Mode -5 /* Illegal msr value */
-#define H_PTEG_Full -6 /* PTEG is full */
-#define H_Not_Found -7 /* PTE was not found" */
-#define H_Reserved_DABR -8 /* DABR address is reserved by the hypervisor on this processor" */
-#define H_NoMem -9
-#define H_Authority -10
-#define H_Permission -11
-#define H_Dropped -12
-#define H_SourceParm -13
-#define H_DestParm -14
-#define H_RemoteParm -15
-#define H_Resource -16
-
-/* Long Busy is a condition that can be returned by the firmware
- * when a call cannot be completed now, but the identical call
- * should be retried later. This prevents calls blocking in the
- * firmware for long periods of time. Annoyingly the firmware can return
- * a range of return codes, hinting at how long we should wait before
- * retrying. If you don't care for the hint, the macro below is a good
- * way to check for the long_busy return codes
- */
-#define H_isLongBusy(x) ((x >= H_LongBusyStartRange) && (x <= H_LongBusyEndRange))
-
-/* Flags */
-#define H_LARGE_PAGE (1UL<<(63-16))
-#define H_EXACT (1UL<<(63-24)) /* Use exact PTE or return H_PTEG_FULL */
-#define H_R_XLATE (1UL<<(63-25)) /* include a valid logical page num in the pte if the valid bit is set */
-#define H_READ_4 (1UL<<(63-26)) /* Return 4 PTEs */
-#define H_AVPN (1UL<<(63-32)) /* An avpn is provided as a sanity test */
-#define H_ANDCOND (1UL<<(63-33))
-#define H_ICACHE_INVALIDATE (1UL<<(63-40)) /* icbi, etc. (ignored for IO pages) */
-#define H_ICACHE_SYNCHRONIZE (1UL<<(63-41)) /* dcbst, icbi, etc (ignored for IO pages */
-#define H_ZERO_PAGE (1UL<<(63-48)) /* zero the page before mapping (ignored for IO pages) */
-#define H_COPY_PAGE (1UL<<(63-49))
-#define H_N (1UL<<(63-61))
-#define H_PP1 (1UL<<(63-62))
-#define H_PP2 (1UL<<(63-63))
-
-/* DABRX flags */
-#define H_DABRX_HYPERVISOR (1UL<<(63-61))
-#define H_DABRX_KERNEL (1UL<<(63-62))
-#define H_DABRX_USER (1UL<<(63-63))
-
-/* pSeries hypervisor opcodes */
-#define H_REMOVE 0x04
-#define H_ENTER 0x08
-#define H_READ 0x0c
-#define H_CLEAR_MOD 0x10
-#define H_CLEAR_REF 0x14
-#define H_PROTECT 0x18
-#define H_GET_TCE 0x1c
-#define H_PUT_TCE 0x20
-#define H_SET_SPRG0 0x24
-#define H_SET_DABR 0x28
-#define H_PAGE_INIT 0x2c
-#define H_SET_ASR 0x30
-#define H_ASR_ON 0x34
-#define H_ASR_OFF 0x38
-#define H_LOGICAL_CI_LOAD 0x3c
-#define H_LOGICAL_CI_STORE 0x40
-#define H_LOGICAL_CACHE_LOAD 0x44
-#define H_LOGICAL_CACHE_STORE 0x48
-#define H_LOGICAL_ICBI 0x4c
-#define H_LOGICAL_DCBF 0x50
-#define H_GET_TERM_CHAR 0x54
-#define H_PUT_TERM_CHAR 0x58
-#define H_REAL_TO_LOGICAL 0x5c
-#define H_HYPERVISOR_DATA 0x60
-#define H_EOI 0x64
-#define H_CPPR 0x68
-#define H_IPI 0x6c
-#define H_IPOLL 0x70
-#define H_XIRR 0x74
-#define H_PERFMON 0x7c
-#define H_MIGRATE_DMA 0x78
-#define H_REGISTER_VPA 0xDC
-#define H_CEDE 0xE0
-#define H_CONFER 0xE4
-#define H_PROD 0xE8
-#define H_GET_PPP 0xEC
-#define H_SET_PPP 0xF0
-#define H_PURR 0xF4
-#define H_PIC 0xF8
-#define H_REG_CRQ 0xFC
-#define H_FREE_CRQ 0x100
-#define H_VIO_SIGNAL 0x104
-#define H_SEND_CRQ 0x108
-#define H_COPY_RDMA 0x110
-#define H_SET_XDABR 0x134
-#define H_STUFF_TCE 0x138
-#define H_PUT_TCE_INDIRECT 0x13C
-#define H_VTERM_PARTNER_INFO 0x150
-#define H_REGISTER_VTERM 0x154
-#define H_FREE_VTERM 0x158
-#define H_POLL_PENDING 0x1D8
-
-#ifndef __ASSEMBLY__
-
-/* plpar_hcall() -- Generic call interface using above opcodes
- *
- * The actual call interface is a hypervisor call instruction with
- * the opcode in R3 and input args in R4-R7.
- * Status is returned in R3 with variable output values in R4-R11.
- * Only H_PTE_READ with H_READ_4 uses R6-R11 so we ignore it for now
- * and return only two out args which MUST ALWAYS BE PROVIDED.
- */
-long plpar_hcall(unsigned long opcode,
- unsigned long arg1,
- unsigned long arg2,
- unsigned long arg3,
- unsigned long arg4,
- unsigned long *out1,
- unsigned long *out2,
- unsigned long *out3);
-
-/* Same as plpar_hcall but for those opcodes that return no values
- * other than status. Slightly more efficient.
- */
-long plpar_hcall_norets(unsigned long opcode, ...);
-
-/*
- * Special hcall interface for ibmveth support.
- * Takes 8 input parms. Returns a rc and stores the
- * R4 return value in *out1.
- */
-long plpar_hcall_8arg_2ret(unsigned long opcode,
- unsigned long arg1,
- unsigned long arg2,
- unsigned long arg3,
- unsigned long arg4,
- unsigned long arg5,
- unsigned long arg6,
- unsigned long arg7,
- unsigned long arg8,
- unsigned long *out1);
-
-/* plpar_hcall_4out()
- *
- * same as plpar_hcall except with 4 output arguments.
- *
- */
-long plpar_hcall_4out(unsigned long opcode,
- unsigned long arg1,
- unsigned long arg2,
- unsigned long arg3,
- unsigned long arg4,
- unsigned long *out1,
- unsigned long *out2,
- unsigned long *out3,
- unsigned long *out4);
-
-#endif /* __ASSEMBLY__ */
-#endif /* _PPC64_HVCALL_H */
projects / GitHub / LineageOS / G12 / android_kernel_amlogic_linux-4.9.git / commitdiff