x86: remove subarchitecture support
authorIngo Molnar <mingo@elte.hu>
Wed, 28 Jan 2009 18:32:55 +0000 (19:32 +0100)
committerIngo Molnar <mingo@elte.hu>
Thu, 29 Jan 2009 13:16:52 +0000 (14:16 +0100)
Remove the 32-bit subarchitecture support code.

All subarchitectures but Voyager have been converted. Voyager will be
done later or will be removed.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
arch/x86/Makefile
arch/x86/include/asm/apic.h
arch/x86/kernel/Makefile
arch/x86/kernel/io_apic.c
arch/x86/kernel/probe_32.c
arch/x86/mach-default/setup.c [deleted file]
arch/x86/mach-generic/default.c [deleted file]

index 799a0d931c81c7d5ab4cd5b2822767ff66d18eb9..99550c40799084158c09aa4eed79bd85b191f0f7 100644 (file)
@@ -102,24 +102,6 @@ KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
 # prevent gcc from generating any FP code by mistake
 KBUILD_CFLAGS += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,)
 
-###
-# Sub architecture support
-# fcore-y is linked before mcore-y files.
-
-# Default subarch .c files
-mcore-y  := arch/x86/mach-default/
-
-# Voyager subarch support
-mflags-$(CONFIG_X86_VOYAGER)   := -Iarch/x86/include/asm/mach-voyager
-mcore-$(CONFIG_X86_VOYAGER)    := arch/x86/mach-voyager/
-
-# default subarch .h files
-mflags-y += -Iarch/x86/include/asm/mach-default
-
-# 64 bit does not support subarch support - clear sub arch variables
-fcore-$(CONFIG_X86_64)  :=
-mcore-$(CONFIG_X86_64)  :=
-
 KBUILD_CFLAGS += $(mflags-y)
 KBUILD_AFLAGS += $(mflags-y)
 
@@ -145,9 +127,6 @@ core-$(CONFIG_LGUEST_GUEST) += arch/x86/lguest/
 core-y += arch/x86/kernel/
 core-y += arch/x86/mm/
 
-# Remaining sub architecture files
-core-y += $(mcore-y)
-
 core-y += arch/x86/crypto/
 core-y += arch/x86/vdso/
 core-$(CONFIG_IA32_EMULATION) += arch/x86/ia32/
index 6a77068e261ac2d070734384a0f9a5157efc3464..b03711d7990b8d6c7de68be47e80445452d64a52 100644 (file)
@@ -215,6 +215,7 @@ static inline void disable_local_APIC(void) { }
 #define        SET_APIC_ID(x)          (apic->set_apic_id(x))
 #else
 
+#ifdef CONFIG_X86_LOCAL_APIC
 static inline unsigned default_get_apic_id(unsigned long x)
 {
        unsigned int ver = GET_APIC_VERSION(apic_read(APIC_LVR));
@@ -224,6 +225,7 @@ static inline unsigned default_get_apic_id(unsigned long x)
        else
                return (x >> 24) & 0x0F;
 }
+#endif
 
 #endif
 
index d3f8f49aed65d88f00a9740e3b828b5f1b55ca68..1bc4cdc797dbfa96389fd71b569e2748d02564d5 100644 (file)
@@ -63,7 +63,7 @@ obj-$(CONFIG_SMP)             += setup_percpu.o
 obj-$(CONFIG_X86_64_SMP)       += tsc_sync.o
 obj-$(CONFIG_X86_TRAMPOLINE)   += trampoline_$(BITS).o
 obj-$(CONFIG_X86_MPPARSE)      += mpparse.o
-obj-$(CONFIG_X86_LOCAL_APIC)   += apic.o nmi.o
+obj-$(CONFIG_X86_LOCAL_APIC)   += apic.o nmi.o ipi.o
 obj-$(CONFIG_X86_IO_APIC)      += io_apic.o
 obj-$(CONFIG_X86_REBOOTFIXUPS) += reboot_fixups_32.o
 obj-$(CONFIG_DYNAMIC_FTRACE)   += ftrace.o
index 241a01d6fd4b7ccf2d83049ec155772a7c2dbf8b..3378ffb21407ddfe09c8d3313845cfc8adbdc272 100644 (file)
@@ -797,23 +797,6 @@ static void clear_IO_APIC (void)
                        clear_IO_APIC_pin(apic, pin);
 }
 
-#if !defined(CONFIG_SMP) && defined(CONFIG_X86_32)
-void default_send_IPI_self(int vector)
-{
-       unsigned int cfg;
-
-       /*
-        * Wait for idle.
-        */
-       apic_wait_icr_idle();
-       cfg = APIC_DM_FIXED | APIC_DEST_SELF | vector | apic->dest_logical;
-       /*
-        * Send the IPI. The write to APIC_ICR fires this off.
-        */
-       apic_write(APIC_ICR, cfg);
-}
-#endif /* !CONFIG_SMP && CONFIG_X86_32*/
-
 #ifdef CONFIG_X86_32
 /*
  * support for broken MP BIOSs, enables hand-redirection of PIRQ0-7 to
index a6fba6914167bfba852c1cfe3f2388cf007134a7..61339a0d55cf6246eb9bea67309c47de015da6f1 100644 (file)
 #include <asm/genapic.h>
 #include <asm/ipi.h>
 
+#include <linux/smp.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <asm/acpi.h>
+#include <asm/arch_hooks.h>
+#include <asm/e820.h>
+#include <asm/setup.h>
+
+#include <asm/genapic.h>
+
+#ifdef CONFIG_HOTPLUG_CPU
+#define DEFAULT_SEND_IPI       (1)
+#else
+#define DEFAULT_SEND_IPI       (0)
+#endif
+
+int no_broadcast = DEFAULT_SEND_IPI;
+
+#ifdef CONFIG_X86_LOCAL_APIC
+
 static void default_vector_allocation_domain(int cpu, struct cpumask *retmask)
 {
        /*
@@ -246,3 +266,146 @@ int __init default_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
        }
        return 0;
 }
+
+#endif /* CONFIG_X86_LOCAL_APIC */
+
+/**
+ * pre_intr_init_hook - initialisation prior to setting up interrupt vectors
+ *
+ * Description:
+ *     Perform any necessary interrupt initialisation prior to setting up
+ *     the "ordinary" interrupt call gates.  For legacy reasons, the ISA
+ *     interrupts should be initialised here if the machine emulates a PC
+ *     in any way.
+ **/
+void __init pre_intr_init_hook(void)
+{
+       if (x86_quirks->arch_pre_intr_init) {
+               if (x86_quirks->arch_pre_intr_init())
+                       return;
+       }
+       init_ISA_irqs();
+}
+
+/**
+ * intr_init_hook - post gate setup interrupt initialisation
+ *
+ * Description:
+ *     Fill in any interrupts that may have been left out by the general
+ *     init_IRQ() routine.  interrupts having to do with the machine rather
+ *     than the devices on the I/O bus (like APIC interrupts in intel MP
+ *     systems) are started here.
+ **/
+void __init intr_init_hook(void)
+{
+       if (x86_quirks->arch_intr_init) {
+               if (x86_quirks->arch_intr_init())
+                       return;
+       }
+}
+
+/**
+ * pre_setup_arch_hook - hook called prior to any setup_arch() execution
+ *
+ * Description:
+ *     generally used to activate any machine specific identification
+ *     routines that may be needed before setup_arch() runs.  On Voyager
+ *     this is used to get the board revision and type.
+ **/
+void __init pre_setup_arch_hook(void)
+{
+}
+
+/**
+ * trap_init_hook - initialise system specific traps
+ *
+ * Description:
+ *     Called as the final act of trap_init().  Used in VISWS to initialise
+ *     the various board specific APIC traps.
+ **/
+void __init trap_init_hook(void)
+{
+       if (x86_quirks->arch_trap_init) {
+               if (x86_quirks->arch_trap_init())
+                       return;
+       }
+}
+
+static struct irqaction irq0  = {
+       .handler = timer_interrupt,
+       .flags = IRQF_DISABLED | IRQF_NOBALANCING | IRQF_IRQPOLL,
+       .mask = CPU_MASK_NONE,
+       .name = "timer"
+};
+
+/**
+ * pre_time_init_hook - do any specific initialisations before.
+ *
+ **/
+void __init pre_time_init_hook(void)
+{
+       if (x86_quirks->arch_pre_time_init)
+               x86_quirks->arch_pre_time_init();
+}
+
+/**
+ * time_init_hook - do any specific initialisations for the system timer.
+ *
+ * Description:
+ *     Must plug the system timer interrupt source at HZ into the IRQ listed
+ *     in irq_vectors.h:TIMER_IRQ
+ **/
+void __init time_init_hook(void)
+{
+       if (x86_quirks->arch_time_init) {
+               /*
+                * A nonzero return code does not mean failure, it means
+                * that the architecture quirk does not want any
+                * generic (timer) setup to be performed after this:
+                */
+               if (x86_quirks->arch_time_init())
+                       return;
+       }
+
+       irq0.mask = cpumask_of_cpu(0);
+       setup_irq(0, &irq0);
+}
+
+#ifdef CONFIG_MCA
+/**
+ * mca_nmi_hook - hook into MCA specific NMI chain
+ *
+ * Description:
+ *     The MCA (Microchannel Architecture) has an NMI chain for NMI sources
+ *     along the MCA bus.  Use this to hook into that chain if you will need
+ *     it.
+ **/
+void mca_nmi_hook(void)
+{
+       /*
+        * If I recall correctly, there's a whole bunch of other things that
+        * we can do to check for NMI problems, but that's all I know about
+        * at the moment.
+        */
+       pr_warning("NMI generated from unknown source!\n");
+}
+#endif
+
+static __init int no_ipi_broadcast(char *str)
+{
+       get_option(&str, &no_broadcast);
+       pr_info("Using %s mode\n",
+               no_broadcast ? "No IPI Broadcast" : "IPI Broadcast");
+       return 1;
+}
+__setup("no_ipi_broadcast=", no_ipi_broadcast);
+
+static int __init print_ipi_mode(void)
+{
+       pr_info("Using IPI %s mode\n",
+               no_broadcast ? "No-Shortcut" : "Shortcut");
+       return 0;
+}
+
+late_initcall(print_ipi_mode);
+
diff --git a/arch/x86/mach-default/setup.c b/arch/x86/mach-default/setup.c
deleted file mode 100644 (file)
index b65ff0b..0000000
+++ /dev/null
@@ -1,162 +0,0 @@
-/*
- *     Machine specific setup for generic
- */
-
-#include <linux/smp.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <asm/acpi.h>
-#include <asm/arch_hooks.h>
-#include <asm/e820.h>
-#include <asm/setup.h>
-
-#include <asm/genapic.h>
-
-#ifdef CONFIG_HOTPLUG_CPU
-#define DEFAULT_SEND_IPI       (1)
-#else
-#define DEFAULT_SEND_IPI       (0)
-#endif
-
-int no_broadcast = DEFAULT_SEND_IPI;
-
-/**
- * pre_intr_init_hook - initialisation prior to setting up interrupt vectors
- *
- * Description:
- *     Perform any necessary interrupt initialisation prior to setting up
- *     the "ordinary" interrupt call gates.  For legacy reasons, the ISA
- *     interrupts should be initialised here if the machine emulates a PC
- *     in any way.
- **/
-void __init pre_intr_init_hook(void)
-{
-       if (x86_quirks->arch_pre_intr_init) {
-               if (x86_quirks->arch_pre_intr_init())
-                       return;
-       }
-       init_ISA_irqs();
-}
-
-/**
- * intr_init_hook - post gate setup interrupt initialisation
- *
- * Description:
- *     Fill in any interrupts that may have been left out by the general
- *     init_IRQ() routine.  interrupts having to do with the machine rather
- *     than the devices on the I/O bus (like APIC interrupts in intel MP
- *     systems) are started here.
- **/
-void __init intr_init_hook(void)
-{
-       if (x86_quirks->arch_intr_init) {
-               if (x86_quirks->arch_intr_init())
-                       return;
-       }
-}
-
-/**
- * pre_setup_arch_hook - hook called prior to any setup_arch() execution
- *
- * Description:
- *     generally used to activate any machine specific identification
- *     routines that may be needed before setup_arch() runs.  On Voyager
- *     this is used to get the board revision and type.
- **/
-void __init pre_setup_arch_hook(void)
-{
-}
-
-/**
- * trap_init_hook - initialise system specific traps
- *
- * Description:
- *     Called as the final act of trap_init().  Used in VISWS to initialise
- *     the various board specific APIC traps.
- **/
-void __init trap_init_hook(void)
-{
-       if (x86_quirks->arch_trap_init) {
-               if (x86_quirks->arch_trap_init())
-                       return;
-       }
-}
-
-static struct irqaction irq0  = {
-       .handler = timer_interrupt,
-       .flags = IRQF_DISABLED | IRQF_NOBALANCING | IRQF_IRQPOLL,
-       .mask = CPU_MASK_NONE,
-       .name = "timer"
-};
-
-/**
- * pre_time_init_hook - do any specific initialisations before.
- *
- **/
-void __init pre_time_init_hook(void)
-{
-       if (x86_quirks->arch_pre_time_init)
-               x86_quirks->arch_pre_time_init();
-}
-
-/**
- * time_init_hook - do any specific initialisations for the system timer.
- *
- * Description:
- *     Must plug the system timer interrupt source at HZ into the IRQ listed
- *     in irq_vectors.h:TIMER_IRQ
- **/
-void __init time_init_hook(void)
-{
-       if (x86_quirks->arch_time_init) {
-               /*
-                * A nonzero return code does not mean failure, it means
-                * that the architecture quirk does not want any
-                * generic (timer) setup to be performed after this:
-                */
-               if (x86_quirks->arch_time_init())
-                       return;
-       }
-
-       irq0.mask = cpumask_of_cpu(0);
-       setup_irq(0, &irq0);
-}
-
-#ifdef CONFIG_MCA
-/**
- * mca_nmi_hook - hook into MCA specific NMI chain
- *
- * Description:
- *     The MCA (Microchannel Architecture) has an NMI chain for NMI sources
- *     along the MCA bus.  Use this to hook into that chain if you will need
- *     it.
- **/
-void mca_nmi_hook(void)
-{
-       /*
-        * If I recall correctly, there's a whole bunch of other things that
-        * we can do to check for NMI problems, but that's all I know about
-        * at the moment.
-        */
-       pr_warning("NMI generated from unknown source!\n");
-}
-#endif
-
-static __init int no_ipi_broadcast(char *str)
-{
-       get_option(&str, &no_broadcast);
-       pr_info("Using %s mode\n",
-               no_broadcast ? "No IPI Broadcast" : "IPI Broadcast");
-       return 1;
-}
-__setup("no_ipi_broadcast=", no_ipi_broadcast);
-
-static int __init print_ipi_mode(void)
-{
-       pr_info("Using IPI %s mode\n",
-               no_broadcast ? "No-Shortcut" : "Shortcut");
-       return 0;
-}
-
-late_initcall(print_ipi_mode);
-
diff --git a/arch/x86/mach-generic/default.c b/arch/x86/mach-generic/default.c
deleted file mode 100644 (file)
index d9d44c8..0000000
+++ /dev/null
@@ -1,93 +0,0 @@
-/*
- * Default generic APIC driver. This handles up to 8 CPUs.
- */
-#define APIC_DEFINITION 1
-#include <linux/threads.h>
-#include <linux/cpumask.h>
-#include <asm/mpspec.h>
-#include <asm/genapic.h>
-#include <asm/fixmap.h>
-#include <asm/apicdef.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/smp.h>
-#include <linux/init.h>
-#include <asm/genapic.h>
-#include <asm/ipi.h>
-
-static void default_vector_allocation_domain(int cpu, struct cpumask *retmask)
-{
-       /*
-        * Careful. Some cpus do not strictly honor the set of cpus
-        * specified in the interrupt destination when using lowest
-        * priority interrupt delivery mode.
-        *
-        * In particular there was a hyperthreading cpu observed to
-        * deliver interrupts to the wrong hyperthread when only one
-        * hyperthread was specified in the interrupt desitination.
-        */
-       *retmask = (cpumask_t) { { [0] = APIC_ALL_CPUS } };
-}
-
-/* should be called last. */
-static int probe_default(void)
-{
-       return 1;
-}
-
-struct genapic apic_default = {
-
-       .name                           = "default",
-       .probe                          = probe_default,
-       .acpi_madt_oem_check            = NULL,
-       .apic_id_registered             = default_apic_id_registered,
-
-       .irq_delivery_mode              = dest_LowestPrio,
-       /* logical delivery broadcast to all CPUs: */
-       .irq_dest_mode                  = 1,
-
-       .target_cpus                    = default_target_cpus,
-       .disable_esr                    = 0,
-       .dest_logical                   = APIC_DEST_LOGICAL,
-       .check_apicid_used              = default_check_apicid_used,
-       .check_apicid_present           = default_check_apicid_present,
-
-       .vector_allocation_domain       = default_vector_allocation_domain,
-       .init_apic_ldr                  = default_init_apic_ldr,
-
-       .ioapic_phys_id_map             = default_ioapic_phys_id_map,
-       .setup_apic_routing             = default_setup_apic_routing,
-       .multi_timer_check              = NULL,
-       .apicid_to_node                 = default_apicid_to_node,
-       .cpu_to_logical_apicid          = default_cpu_to_logical_apicid,
-       .cpu_present_to_apicid          = default_cpu_present_to_apicid,
-       .apicid_to_cpu_present          = default_apicid_to_cpu_present,
-       .setup_portio_remap             = NULL,
-       .check_phys_apicid_present      = default_check_phys_apicid_present,
-       .enable_apic_mode               = NULL,
-       .phys_pkg_id                    = default_phys_pkg_id,
-       .mps_oem_check                  = NULL,
-
-       .get_apic_id                    = default_get_apic_id,
-       .set_apic_id                    = NULL,
-       .apic_id_mask                   = 0x0F << 24,
-
-       .cpu_mask_to_apicid             = default_cpu_mask_to_apicid,
-       .cpu_mask_to_apicid_and         = default_cpu_mask_to_apicid_and,
-
-       .send_IPI_mask                  = default_send_IPI_mask,
-       .send_IPI_mask_allbutself       = NULL,
-       .send_IPI_allbutself            = default_send_IPI_allbutself,
-       .send_IPI_all                   = default_send_IPI_all,
-       .send_IPI_self                  = NULL,
-
-       .wakeup_cpu                     = NULL,
-       .trampoline_phys_low            = DEFAULT_TRAMPOLINE_PHYS_LOW,
-       .trampoline_phys_high           = DEFAULT_TRAMPOLINE_PHYS_HIGH,
-
-       .wait_for_init_deassert         = default_wait_for_init_deassert,
-
-       .smp_callin_clear_local_apic    = NULL,
-       .store_NMI_vector               = NULL,
-       .inquire_remote_apic            = default_inquire_remote_apic,
-};