34 files changed, 304 insertions, 259 deletions

diff --git a/arch/i386/kernel/Makefile b/arch/i386/kernel/Makefile
index 91cff8dc9e1a..06da59f6f837 100644
--- a/arch/i386/kernel/Makefile
+++ b/arch/i386/kernel/Makefile
@@ -19,6 +19,7 @@ obj-$(CONFIG_X86_CPUID)		+= cpuid.o
 obj-$(CONFIG_MICROCODE)         += microcode.o
 obj-$(CONFIG_APM)               += apm.o
 obj-$(CONFIG_X86_SMP)           += smp.o smpboot.o tsc_sync.o
+obj-$(CONFIG_SMP)               += smpcommon.o
 obj-$(CONFIG_X86_TRAMPOLINE)    += trampoline.o
 obj-$(CONFIG_X86_MPPARSE)       += mpparse.o
 obj-$(CONFIG_X86_LOCAL_APIC)    += apic.o nmi.o
diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c
index 280898b045b2..a574cd2c8b61 100644
--- a/arch/i386/kernel/acpi/boot.c
+++ b/arch/i386/kernel/acpi/boot.c
@@ -621,8 +621,6 @@ static int __init acpi_parse_sbf(struct acpi_table_header *table)
 static int __init acpi_parse_hpet(struct acpi_table_header *table)
 {
         struct acpi_table_hpet *hpet_tbl;
-        struct resource *hpet_res;
-        resource_size_t res_start;
 
         hpet_tbl = (struct acpi_table_hpet *)table;
         if (!hpet_tbl) {
@@ -636,29 +634,10 @@ static int __init acpi_parse_hpet(struct acpi_table_header *table)
                 return -1;
         }
 
-#define HPET_RESOURCE_NAME_SIZE 9
-        hpet_res = alloc_bootmem(sizeof(*hpet_res) + HPET_RESOURCE_NAME_SIZE);
-        if (hpet_res) {
-                memset(hpet_res, 0, sizeof(*hpet_res));
-                hpet_res->name = (void *)&hpet_res[1];
-                hpet_res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
-                snprintf((char *)hpet_res->name, HPET_RESOURCE_NAME_SIZE,
-                         "HPET %u", hpet_tbl->sequence);
-                hpet_res->end = (1 * 1024) - 1;
-        }
-
         hpet_address = hpet_tbl->address.address;
         printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n",
                hpet_tbl->id, hpet_address);
 
-        res_start = hpet_address;
-
-        if (hpet_res) {
-                hpet_res->start = res_start;
-                hpet_res->end += res_start;
-                insert_resource(&iomem_resource, hpet_res);
-        }
-
         return 0;
 }
 #else
diff --git a/arch/i386/kernel/acpi/wakeup.S b/arch/i386/kernel/acpi/wakeup.S
index b781b38131c0..a2295a34b2c7 100644
--- a/arch/i386/kernel/acpi/wakeup.S
+++ b/arch/i386/kernel/acpi/wakeup.S
@@ -230,6 +230,7 @@ bogus_magic:
 #
 ENTRY(acpi_copy_wakeup_routine)
 
+        pushl   %ebx
         sgdt    saved_gdt
         sidt    saved_idt
         sldt    saved_ldt
@@ -263,6 +264,7 @@ ENTRY(acpi_copy_wakeup_routine)
         movl    %edx, video_flags - wakeup_start (%eax)
         movl    $0x12345678, real_magic - wakeup_start (%eax)
         movl    $0x12345678, saved_magic
+        popl    %ebx
         ret
 
 save_registers:
diff --git a/arch/i386/kernel/cpu/Makefile b/arch/i386/kernel/cpu/Makefile
index 74f27a463db0..0b6a8551e9e2 100644
--- a/arch/i386/kernel/cpu/Makefile
+++ b/arch/i386/kernel/cpu/Makefile
@@ -8,7 +8,7 @@ obj-y	+=	amd.o
 obj-y   +=      cyrix.o
 obj-y   +=      centaur.o
 obj-y   +=      transmeta.o
-obj-y   +=      intel.o intel_cacheinfo.o
+obj-y   +=      intel.o intel_cacheinfo.o addon_cpuid_features.o
 obj-y   +=      rise.o
 obj-y   +=      nexgen.o
 obj-y   +=      umc.o
diff --git a/arch/i386/kernel/cpu/addon_cpuid_features.c b/arch/i386/kernel/cpu/addon_cpuid_features.c
new file mode 100644
index 000000000000..3e91d3ee26ec
--- /dev/null
+++ b/arch/i386/kernel/cpu/addon_cpuid_features.c
@@ -0,0 +1,50 @@
+
+/*
+ *      Routines to indentify additional cpu features that are scattered in
+ *      cpuid space.
+ */
+
+#include <linux/cpu.h>
+
+#include <asm/processor.h>
+
+struct cpuid_bit {
+        u16 feature;
+        u8 reg;
+        u8 bit;
+        u32 level;
+};
+
+enum cpuid_regs {
+        CR_EAX = 0,
+        CR_ECX,
+        CR_EDX,
+        CR_EBX
+};
+
+void __cpuinit init_scattered_cpuid_features(struct cpuinfo_x86 *c)
+{
+        u32 max_level;
+        u32 regs[4];
+        const struct cpuid_bit *cb;
+
+        static const struct cpuid_bit cpuid_bits[] = {
+                { X86_FEATURE_IDA, CR_EAX, 1, 0x00000006 },
+                { 0, 0, 0, 0 }
+        };
+
+        for (cb = cpuid_bits; cb->feature; cb++) {
+
+                /* Verify that the level is valid */
+                max_level = cpuid_eax(cb->level & 0xffff0000);
+                if (max_level < cb->level ||
+                    max_level > (cb->level | 0xffff))
+                        continue;
+
+                cpuid(cb->level, &regs[CR_EAX], &regs[CR_EBX],
+                        &regs[CR_ECX], &regs[CR_EDX]);
+
+                if (regs[cb->reg] & (1 << cb->bit))
+                        set_bit(cb->feature, c->x86_capability);
+        }
+}
diff --git a/arch/i386/kernel/cpu/amd.c b/arch/i386/kernel/cpu/amd.c
index 4fec702afd7e..6f47eeeb93ea 100644
--- a/arch/i386/kernel/cpu/amd.c
+++ b/arch/i386/kernel/cpu/amd.c
@@ -280,6 +280,10 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 
         if (c->x86 == 0x10 && !force_mwait)
                 clear_bit(X86_FEATURE_MWAIT, c->x86_capability);
+
+        /* K6s reports MCEs but don't actually have all the MSRs */
+        if (c->x86 < 6)
+                clear_bit(X86_FEATURE_MCE, c->x86_capability);
 }
 
 static unsigned int __cpuinit amd_size_cache(struct cpuinfo_x86 * c, unsigned int size)
diff --git a/arch/i386/kernel/cpu/common.c b/arch/i386/kernel/cpu/common.c
index 794d593c47eb..e5419a9dec88 100644
--- a/arch/i386/kernel/cpu/common.c
+++ b/arch/i386/kernel/cpu/common.c
@@ -353,6 +353,8 @@ static void __cpuinit generic_identify(struct cpuinfo_x86 * c)
                         if ( xlvl >= 0x80000004 )
                                 get_model_name(c); /* Default name */
                 }
+
+                init_scattered_cpuid_features(c);
         }
 
         early_intel_workaround(c);
diff --git a/arch/i386/kernel/cpu/cpufreq/cpufreq-nforce2.c b/arch/i386/kernel/cpu/cpufreq/cpufreq-nforce2.c
index 0d49d73d1b71..66acd5039918 100644
--- a/arch/i386/kernel/cpu/cpufreq/cpufreq-nforce2.c
+++ b/arch/i386/kernel/cpu/cpufreq/cpufreq-nforce2.c
@@ -391,8 +391,6 @@ static struct cpufreq_driver nforce2_driver = {
  */
 static unsigned int nforce2_detect_chipset(void)
 {
-        u8 revision;
-
         nforce2_chipset_dev = pci_get_subsys(PCI_VENDOR_ID_NVIDIA,
                                         PCI_DEVICE_ID_NVIDIA_NFORCE2,
                                         PCI_ANY_ID, PCI_ANY_ID, NULL);
@@ -400,10 +398,8 @@ static unsigned int nforce2_detect_chipset(void)
         if (nforce2_chipset_dev == NULL)
                 return -ENODEV;
 
-        pci_read_config_byte(nforce2_chipset_dev, PCI_REVISION_ID, &revision);
-
         printk(KERN_INFO "cpufreq: Detected nForce2 chipset revision %X\n",
-               revision);
+               nforce2_chipset_dev->revision);
         printk(KERN_INFO
                "cpufreq: FSB changing is maybe unstable and can lead to crashes and data loss.\n");
 
diff --git a/arch/i386/kernel/cpu/cpufreq/gx-suspmod.c b/arch/i386/kernel/cpu/cpufreq/gx-suspmod.c
index 6667e9cceb9f..194144539a6f 100644
--- a/arch/i386/kernel/cpu/cpufreq/gx-suspmod.c
+++ b/arch/i386/kernel/cpu/cpufreq/gx-suspmod.c
@@ -115,7 +115,6 @@ struct gxfreq_params {
         u8 pci_suscfg;
         u8 pci_pmer1;
         u8 pci_pmer2;
-        u8 pci_rev;
         struct pci_dev *cs55x0;
 };
 
@@ -276,7 +275,7 @@ static void gx_set_cpuspeed(unsigned int khz)
                         pci_write_config_byte(gx_params->cs55x0, PCI_VIDTC, 100);/* typical 50 to 100ms */
                         pci_write_config_byte(gx_params->cs55x0, PCI_PMER1, pmer1);
 
-                        if (gx_params->pci_rev < 0x10) {   /* CS5530(rev 1.2, 1.3) */
+                        if (gx_params->cs55x0->revision < 0x10) {   /* CS5530(rev 1.2, 1.3) */
                                 suscfg = gx_params->pci_suscfg | SUSMOD;
                         } else {                           /* CS5530A,B.. */
                                 suscfg = gx_params->pci_suscfg | SUSMOD | PWRSVE;
@@ -471,7 +470,6 @@ static int __init cpufreq_gx_init(void)
         pci_read_config_byte(params->cs55x0, PCI_PMER2, &(params->pci_pmer2));
         pci_read_config_byte(params->cs55x0, PCI_MODON, &(params->on_duration));
         pci_read_config_byte(params->cs55x0, PCI_MODOFF, &(params->off_duration));
-        pci_read_config_byte(params->cs55x0, PCI_REVISION_ID, &params->pci_rev);
 
         if ((ret = cpufreq_register_driver(&gx_suspmod_driver))) {
                 kfree(params);
diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-ich.c b/arch/i386/kernel/cpu/cpufreq/speedstep-ich.c
index b425cd3d1838..a5b2346faf1f 100644
--- a/arch/i386/kernel/cpu/cpufreq/speedstep-ich.c
+++ b/arch/i386/kernel/cpu/cpufreq/speedstep-ich.c
@@ -24,6 +24,7 @@
 #include <linux/cpufreq.h>
 #include <linux/pci.h>
 #include <linux/slab.h>
+#include <linux/sched.h>
 
 #include "speedstep-lib.h"
 
@@ -204,7 +205,6 @@ static unsigned int speedstep_detect_chipset (void)
                  * host brige. Abort on these systems.
                  */
                 static struct pci_dev *hostbridge;
-                u8 rev = 0;
 
                 hostbridge  = pci_get_subsys(PCI_VENDOR_ID_INTEL,
                               PCI_DEVICE_ID_INTEL_82815_MC,
@@ -215,8 +215,7 @@ static unsigned int speedstep_detect_chipset (void)
                 if (!hostbridge)
                         return 2; /* 2-M */
 
-                pci_read_config_byte(hostbridge, PCI_REVISION_ID, &rev);
-                if (rev < 5) {
+                if (hostbridge->revision < 5) {
                         dprintk("hostbridge does not support speedstep\n");
                         speedstep_chipset_dev = NULL;
                         pci_dev_put(hostbridge);
diff --git a/arch/i386/kernel/cpu/cyrix.c b/arch/i386/kernel/cpu/cyrix.c
index 0b8411a864fb..e88d2fba156b 100644
--- a/arch/i386/kernel/cpu/cyrix.c
+++ b/arch/i386/kernel/cpu/cyrix.c
@@ -7,6 +7,7 @@
 #include <asm/processor.h>
 #include <asm/timer.h>
 #include <asm/pci-direct.h>
+#include <asm/tsc.h>
 
 #include "cpu.h"
 
diff --git a/arch/i386/kernel/cpu/mcheck/k7.c b/arch/i386/kernel/cpu/mcheck/k7.c
index f9fa4142551e..eef63e3630c2 100644
--- a/arch/i386/kernel/cpu/mcheck/k7.c
+++ b/arch/i386/kernel/cpu/mcheck/k7.c
@@ -72,12 +72,12 @@ void amd_mcheck_init(struct cpuinfo_x86 *c)
         u32 l, h;
         int i;
 
-        machine_check_vector = k7_machine_check;
-        wmb();
-
         if (!cpu_has(c, X86_FEATURE_MCE))
                 return;
 
+        machine_check_vector = k7_machine_check;
+        wmb();
+
         printk (KERN_INFO "Intel machine check architecture supported.\n");
         rdmsr (MSR_IA32_MCG_CAP, l, h);
         if (l & (1<<8)) /* Control register present ? */
diff --git a/arch/i386/kernel/cpu/mtrr/cyrix.c b/arch/i386/kernel/cpu/mtrr/cyrix.c
index 0737a596db43..1001f1e0fe6d 100644
--- a/arch/i386/kernel/cpu/mtrr/cyrix.c
+++ b/arch/i386/kernel/cpu/mtrr/cyrix.c
@@ -136,7 +136,7 @@ static void prepare_set(void)
         /*  Save value of CR4 and clear Page Global Enable (bit 7)  */
         if ( cpu_has_pge ) {
                 cr4 = read_cr4();
-                write_cr4(cr4 & (unsigned char) ~(1 << 7));
+                write_cr4(cr4 & ~X86_CR4_PGE);
         }
 
         /*  Disable and flush caches. Note that wbinvd flushes the TLBs as
@@ -233,12 +233,12 @@ typedef struct {
         mtrr_type type;
 } arr_state_t;
 
-static arr_state_t arr_state[8] __devinitdata = {
+static arr_state_t arr_state[8] = {
         {0UL, 0UL, 0UL}, {0UL, 0UL, 0UL}, {0UL, 0UL, 0UL}, {0UL, 0UL, 0UL},
         {0UL, 0UL, 0UL}, {0UL, 0UL, 0UL}, {0UL, 0UL, 0UL}, {0UL, 0UL, 0UL}
 };
 
-static unsigned char ccr_state[7] __devinitdata = { 0, 0, 0, 0, 0, 0, 0 };
+static unsigned char ccr_state[7] = { 0, 0, 0, 0, 0, 0, 0 };
 
 static void cyrix_set_all(void)
 {
diff --git a/arch/i386/kernel/cpu/mtrr/generic.c b/arch/i386/kernel/cpu/mtrr/generic.c
index 5367e32e0403..f6e46943e6ef 100644
--- a/arch/i386/kernel/cpu/mtrr/generic.c
+++ b/arch/i386/kernel/cpu/mtrr/generic.c
@@ -42,7 +42,7 @@ static int mtrr_show;
 module_param_named(show, mtrr_show, bool, 0);
 
 /*  Get the MSR pair relating to a var range  */
-static void __init
+static void
 get_mtrr_var_range(unsigned int index, struct mtrr_var_range *vr)
 {
         rdmsr(MTRRphysBase_MSR(index), vr->base_lo, vr->base_hi);
@@ -65,10 +65,11 @@ get_fixed_ranges(mtrr_type * frs)
 
 void mtrr_save_fixed_ranges(void *info)
 {
-        get_fixed_ranges(mtrr_state.fixed_ranges);
+        if (cpu_has_mtrr)
+                get_fixed_ranges(mtrr_state.fixed_ranges);
 }
 
-static void __cpuinit print_fixed(unsigned base, unsigned step, const mtrr_type*types)
+static void print_fixed(unsigned base, unsigned step, const mtrr_type*types)
 {
         unsigned i;
 
@@ -78,7 +79,7 @@ static void __cpuinit print_fixed(unsigned base, unsigned step, const mtrr_type*
 }
 
 /*  Grab all of the MTRR state for this CPU into *state  */
-void __init get_mtrr_state(void)
+void get_mtrr_state(void)
 {
         unsigned int i;
         struct mtrr_var_range *vrs;
@@ -469,11 +470,6 @@ int generic_validate_add_page(unsigned long base, unsigned long size, unsigned i
                 }
         }
 
-        if (base < 0x100) {
-                printk(KERN_WARNING "mtrr: cannot set region below 1 MiB (0x%lx000,0x%lx000)\n",
-                       base, size);
-                return -EINVAL;
-        }
         /*  Check upper bits of base and last are equal and lower bits are 0
             for base and 1 for last  */
         last = base + size - 1;
diff --git a/arch/i386/kernel/cpu/mtrr/main.c b/arch/i386/kernel/cpu/mtrr/main.c
index 02a2f39e5e0a..75dc6d5214bc 100644
--- a/arch/i386/kernel/cpu/mtrr/main.c
+++ b/arch/i386/kernel/cpu/mtrr/main.c
@@ -229,6 +229,8 @@ static void set_mtrr(unsigned int reg, unsigned long base,
         data.smp_size = size;
         data.smp_type = type;
         atomic_set(&data.count, num_booting_cpus() - 1);
+        /* make sure data.count is visible before unleashing other CPUs */
+        smp_wmb();
         atomic_set(&data.gate,0);
 
         /*  Start the ball rolling on other CPUs  */
@@ -242,6 +244,7 @@ static void set_mtrr(unsigned int reg, unsigned long base,
 
         /* ok, reset count and toggle gate */
         atomic_set(&data.count, num_booting_cpus() - 1);
+        smp_wmb();
         atomic_set(&data.gate,1);
 
         /* do our MTRR business */
@@ -260,6 +263,7 @@ static void set_mtrr(unsigned int reg, unsigned long base,
                 cpu_relax();
 
         atomic_set(&data.count, num_booting_cpus() - 1);
+        smp_wmb();
         atomic_set(&data.gate,0);
 
         /*
@@ -639,7 +643,7 @@ static struct sysdev_driver mtrr_sysdev_driver = {
  * initialized (i.e. before smp_init()).
  * 
  */
-void __init mtrr_bp_init(void)
+__init void mtrr_bp_init(void)
 {
         init_ifs();
 
@@ -734,10 +738,13 @@ void mtrr_ap_init(void)
  */
 void mtrr_save_state(void)
 {
-        if (smp_processor_id() == 0)
+        int cpu = get_cpu();
+
+        if (cpu == 0)
                 mtrr_save_fixed_ranges(NULL);
         else
                 smp_call_function_single(0, mtrr_save_fixed_ranges, NULL, 1, 1);
+        put_cpu();
 }
 
 static int __init mtrr_init_finialize(void)
diff --git a/arch/i386/kernel/cpu/mtrr/state.c b/arch/i386/kernel/cpu/mtrr/state.c
index f62ecd15811a..7b39a2f954d9 100644
--- a/arch/i386/kernel/cpu/mtrr/state.c
+++ b/arch/i386/kernel/cpu/mtrr/state.c
@@ -19,7 +19,7 @@ void set_mtrr_prepare_save(struct set_mtrr_context *ctxt)
                 /*  Save value of CR4 and clear Page Global Enable (bit 7)  */
                 if ( cpu_has_pge ) {
                         ctxt->cr4val = read_cr4();
-                        write_cr4(ctxt->cr4val & (unsigned char) ~(1 << 7));
+                        write_cr4(ctxt->cr4val & ~X86_CR4_PGE);
                 }
 
                 /*  Disable and flush caches. Note that wbinvd flushes the TLBs as
diff --git a/arch/i386/kernel/cpu/perfctr-watchdog.c b/arch/i386/kernel/cpu/perfctr-watchdog.c
index 2b04c8f1db62..4d26d514c56f 100644
--- a/arch/i386/kernel/cpu/perfctr-watchdog.c
+++ b/arch/i386/kernel/cpu/perfctr-watchdog.c
@@ -28,7 +28,7 @@ struct wd_ops {
         void (*unreserve)(void);
         int (*setup)(unsigned nmi_hz);
         void (*rearm)(struct nmi_watchdog_ctlblk *wd, unsigned nmi_hz);
-        void (*stop)(void *);
+        void (*stop)(void);
         unsigned perfctr;
         unsigned evntsel;
         u64 checkbit;
@@ -55,14 +55,45 @@ static DEFINE_PER_CPU(struct nmi_watchdog_ctlblk, nmi_watchdog_ctlblk);
 /* converts an msr to an appropriate reservation bit */
 static inline unsigned int nmi_perfctr_msr_to_bit(unsigned int msr)
 {
-        return wd_ops ? msr - wd_ops->perfctr : 0;
+        /* returns the bit offset of the performance counter register */
+        switch (boot_cpu_data.x86_vendor) {
+        case X86_VENDOR_AMD:
+                return (msr - MSR_K7_PERFCTR0);
+        case X86_VENDOR_INTEL:
+                if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON))
+                        return (msr - MSR_ARCH_PERFMON_PERFCTR0);
+
+                switch (boot_cpu_data.x86) {
+                case 6:
+                        return (msr - MSR_P6_PERFCTR0);
+                case 15:
+                        return (msr - MSR_P4_BPU_PERFCTR0);
+                }
+        }
+        return 0;
 }
 
 /* converts an msr to an appropriate reservation bit */
 /* returns the bit offset of the event selection register */
 static inline unsigned int nmi_evntsel_msr_to_bit(unsigned int msr)
 {
-        return wd_ops ? msr - wd_ops->evntsel : 0;
+        /* returns the bit offset of the event selection register */
+        switch (boot_cpu_data.x86_vendor) {
+        case X86_VENDOR_AMD:
+                return (msr - MSR_K7_EVNTSEL0);
+        case X86_VENDOR_INTEL:
+                if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON))
+                        return (msr - MSR_ARCH_PERFMON_EVENTSEL0);
+
+                switch (boot_cpu_data.x86) {
+                case 6:
+                        return (msr - MSR_P6_EVNTSEL0);
+                case 15:
+                        return (msr - MSR_P4_BSU_ESCR0);
+                }
+        }
+        return 0;
+
 }
 
 /* checks for a bit availability (hack for oprofile) */
@@ -142,7 +173,7 @@ void disable_lapic_nmi_watchdog(void)
         if (atomic_read(&nmi_active) <= 0)
                 return;
 
-        on_each_cpu(wd_ops->stop, NULL, 0, 1);
+        on_each_cpu(stop_apic_nmi_watchdog, NULL, 0, 1);
         wd_ops->unreserve();
 
         BUG_ON(atomic_read(&nmi_active) != 0);
@@ -255,7 +286,7 @@ static int setup_k7_watchdog(unsigned nmi_hz)
         return 1;
 }
 
-static void single_msr_stop_watchdog(void *arg)
+static void single_msr_stop_watchdog(void)
 {
         struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk);
 
@@ -276,8 +307,8 @@ static int single_msr_reserve(void)
 
 static void single_msr_unreserve(void)
 {
-        release_evntsel_nmi(wd_ops->perfctr);
-        release_perfctr_nmi(wd_ops->evntsel);
+        release_evntsel_nmi(wd_ops->evntsel);
+        release_perfctr_nmi(wd_ops->perfctr);
 }
 
 static void single_msr_rearm(struct nmi_watchdog_ctlblk *wd, unsigned nmi_hz)
@@ -442,7 +473,7 @@ static int setup_p4_watchdog(unsigned nmi_hz)
         return 1;
 }
 
-static void stop_p4_watchdog(void *arg)
+static void stop_p4_watchdog(void)
 {
         struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk);
         wrmsr(wd->cccr_msr, 0, 0);
@@ -475,10 +506,10 @@ static void p4_unreserve(void)
 {
 #ifdef CONFIG_SMP
         if (smp_num_siblings > 1)
-                release_evntsel_nmi(MSR_P4_IQ_PERFCTR1);
+                release_perfctr_nmi(MSR_P4_IQ_PERFCTR1);
 #endif
-        release_evntsel_nmi(MSR_P4_IQ_PERFCTR0);
-        release_perfctr_nmi(MSR_P4_CRU_ESCR0);
+        release_evntsel_nmi(MSR_P4_CRU_ESCR0);
+        release_perfctr_nmi(MSR_P4_IQ_PERFCTR0);
 }
 
 static void p4_rearm(struct nmi_watchdog_ctlblk *wd, unsigned nmi_hz)
@@ -614,6 +645,12 @@ int lapic_watchdog_init(unsigned nmi_hz)
                 probe_nmi_watchdog();
                 if (!wd_ops)
                         return -1;
+
+                if (!wd_ops->reserve()) {
+                        printk(KERN_ERR
+                                "NMI watchdog: cannot reserve perfctrs\n");
+                        return -1;
+                }
         }
 
         if (!(wd_ops->setup(nmi_hz))) {
@@ -628,7 +665,7 @@ int lapic_watchdog_init(unsigned nmi_hz)
 void lapic_watchdog_stop(void)
 {
         if (wd_ops)
-                wd_ops->stop(NULL);
+                wd_ops->stop();
 }
 
 unsigned lapic_adjust_nmi_hz(unsigned hz)
diff --git a/arch/i386/kernel/cpu/proc.c b/arch/i386/kernel/cpu/proc.c
index 89d91e6cc972..1e31b6caffb1 100644
--- a/arch/i386/kernel/cpu/proc.c
+++ b/arch/i386/kernel/cpu/proc.c
@@ -29,7 +29,8 @@ static int show_cpuinfo(struct seq_file *m, void *v)
                 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
                 NULL, NULL, NULL, "syscall", NULL, NULL, NULL, NULL,
                 NULL, NULL, NULL, "mp", "nx", NULL, "mmxext", NULL,
-                NULL, "fxsr_opt", "pdpe1gb", "rdtscp", NULL, "lm", "3dnowext", "3dnow",
+                NULL, "fxsr_opt", "pdpe1gb", "rdtscp", NULL, "lm",
+                "3dnowext", "3dnow",
 
                 /* Transmeta-defined */
                 "recovery", "longrun", NULL, "lrti", NULL, NULL, NULL, NULL,
@@ -40,8 +41,9 @@ static int show_cpuinfo(struct seq_file *m, void *v)
                 /* Other (Linux-defined) */
                 "cxmmx", "k6_mtrr", "cyrix_arr", "centaur_mcr",
                 NULL, NULL, NULL, NULL,
-                "constant_tsc", "up", NULL, NULL, NULL, NULL, NULL, NULL,
-                NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+                "constant_tsc", "up", NULL, "arch_perfmon",
+                "pebs", "bts", NULL, "sync_rdtsc",
+                "rep_good", NULL, NULL, NULL, NULL, NULL, NULL, NULL,
                 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 
                 /* Intel-defined (#2) */
@@ -57,9 +59,16 @@ static int show_cpuinfo(struct seq_file *m, void *v)
                 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 
                 /* AMD-defined (#2) */
-                "lahf_lm", "cmp_legacy", "svm", "extapic", "cr8legacy", "abm",
-                "sse4a", "misalignsse",
-                "3dnowprefetch", "osvw", "ibs", NULL, NULL, NULL, NULL, NULL,
+                "lahf_lm", "cmp_legacy", "svm", "extapic", "cr8_legacy",
+                "altmovcr8", "abm", "sse4a",
+                "misalignsse", "3dnowprefetch",
+                "osvw", "ibs", NULL, NULL, NULL, NULL,
+                NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+                NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+
+                /* Auxiliary (Linux-defined) */
+                "ida", NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+                NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
                 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
                 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
         };
diff --git a/arch/i386/kernel/e820.c b/arch/i386/kernel/e820.c
index 9645bb51f76a..fc822a46897a 100644
--- a/arch/i386/kernel/e820.c
+++ b/arch/i386/kernel/e820.c
@@ -734,7 +734,7 @@ void __init print_memory_map(char *who)
                 case E820_NVS:
                                 printk("(ACPI NVS)\n");
                                 break;
-                default:        printk("type %lu\n", e820.map[i].type);
+                default:        printk("type %u\n", e820.map[i].type);
                                 break;
                 }
         }
diff --git a/arch/i386/kernel/entry.S b/arch/i386/kernel/entry.S
index b1f16ee65e4d..3c3c220488c9 100644
--- a/arch/i386/kernel/entry.S
+++ b/arch/i386/kernel/entry.S
@@ -367,10 +367,6 @@ ENTRY(system_call)
         CFI_ADJUST_CFA_OFFSET 4
         SAVE_ALL
         GET_THREAD_INFO(%ebp)
-        testl $TF_MASK,PT_EFLAGS(%esp)
-        jz no_singlestep
-        orl $_TIF_SINGLESTEP,TI_flags(%ebp)
-no_singlestep:
                                         # system call tracing in operation / emulation
         /* Note, _TIF_SECCOMP is bit number 8, and so it needs testw and not testb */
         testw $(_TIF_SYSCALL_EMU|_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT),TI_flags(%ebp)
@@ -385,6 +381,10 @@ syscall_exit:
                                         # setting need_resched or sigpending
                                         # between sampling and the iret
         TRACE_IRQS_OFF
+        testl $TF_MASK,PT_EFLAGS(%esp)  # If tracing set singlestep flag on exit
+        jz no_singlestep
+        orl $_TIF_SINGLESTEP,TI_flags(%ebp)
+no_singlestep:
         movl TI_flags(%ebp), %ecx
         testw $_TIF_ALLWORK_MASK, %cx   # current->work
         jne syscall_exit_work
diff --git a/arch/i386/kernel/microcode.c b/arch/i386/kernel/microcode.c
index 83f825f2e2d7..d865d041bea1 100644
--- a/arch/i386/kernel/microcode.c
+++ b/arch/i386/kernel/microcode.c
@@ -478,7 +478,7 @@ static int __init microcode_dev_init (void)
         return 0;
 }
 
-static void __exit microcode_dev_exit (void)
+static void microcode_dev_exit (void)
 {
         misc_deregister(&microcode_dev);
 }
diff --git a/arch/i386/kernel/pci-dma.c b/arch/i386/kernel/pci-dma.c
index 30b754f7cbec..048f09b62553 100644
--- a/arch/i386/kernel/pci-dma.c
+++ b/arch/i386/kernel/pci-dma.c
@@ -12,6 +12,7 @@
 #include <linux/string.h>
 #include <linux/pci.h>
 #include <linux/module.h>
+#include <linux/pci.h>
 #include <asm/io.h>
 
 struct dma_coherent_mem {
@@ -148,3 +149,29 @@ void *dma_mark_declared_memory_occupied(struct device *dev,
         return mem->virt_base + (pos << PAGE_SHIFT);
 }
 EXPORT_SYMBOL(dma_mark_declared_memory_occupied);
+
+#ifdef CONFIG_PCI
+/* Many VIA bridges seem to corrupt data for DAC. Disable it here */
+
+int forbid_dac;
+EXPORT_SYMBOL(forbid_dac);
+
+static __devinit void via_no_dac(struct pci_dev *dev)
+{
+        if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI && forbid_dac == 0) {
+                printk(KERN_INFO "PCI: VIA PCI bridge detected. Disabling DAC.\n");
+                forbid_dac = 1;
+        }
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_ANY_ID, via_no_dac);
+
+static int check_iommu(char *s)
+{
+        if (!strcmp(s, "usedac")) {
+                forbid_dac = -1;
+                return 1;
+        }
+        return 0;
+}
+__setup("iommu=", check_iommu);
+#endif
diff --git a/arch/i386/kernel/quirks.c b/arch/i386/kernel/quirks.c
index 9f6ab1789bb0..6722469c2633 100644
--- a/arch/i386/kernel/quirks.c
+++ b/arch/i386/kernel/quirks.c
@@ -20,8 +20,6 @@ static void __devinit quirk_intel_irqbalance(struct pci_dev *dev)
         if (rev > 0x9)
                 return;
 
-        printk(KERN_INFO "Intel E7520/7320/7525 detected.");
-
         /* enable access to config space*/
         pci_read_config_byte(dev, 0xf4, &config);
         pci_write_config_byte(dev, 0xf4, config|0x2);
@@ -30,7 +28,8 @@ static void __devinit quirk_intel_irqbalance(struct pci_dev *dev)
         raw_pci_ops->read(0, 0, 0x40, 0x4c, 2, &word);
 
         if (!(word & (1 << 13))) {
-                printk(KERN_INFO "Disabling irq balancing and affinity\n");
+                printk(KERN_INFO "Intel E7520/7320/7525 detected. "
+                        "Disabling irq balancing and affinity\n");
 #ifdef CONFIG_IRQBALANCE
                 irqbalance_disable("");
 #endif
diff --git a/arch/i386/kernel/reboot.c b/arch/i386/kernel/reboot.c
index 50dfc65319cd..5513f8d5b5be 100644
--- a/arch/i386/kernel/reboot.c
+++ b/arch/i386/kernel/reboot.c
@@ -89,6 +89,14 @@ static int __init set_bios_reboot(struct dmi_system_id *d)
 }
 
 static struct dmi_system_id __initdata reboot_dmi_table[] = {
+        {       /* Handle problems with rebooting on Dell E520's */
+                .callback = set_bios_reboot,
+                .ident = "Dell E520",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "Dell DM061"),
+                },
+        },
         {       /* Handle problems with rebooting on Dell 1300's */
                 .callback = set_bios_reboot,
                 .ident = "Dell PowerEdge 1300",
diff --git a/arch/i386/kernel/reboot_fixups.c b/arch/i386/kernel/reboot_fixups.c
index 2d78d918340f..03e1cce58f49 100644
--- a/arch/i386/kernel/reboot_fixups.c
+++ b/arch/i386/kernel/reboot_fixups.c
@@ -5,12 +5,14 @@
  *
  * List of supported fixups:
  * geode-gx1/cs5530a - Jaya Kumar <jayalk@intworks.biz>
+ * geode-gx/lx/cs5536 - Andres Salomon <dilinger@debian.org>
  *
  */
 
 #include <asm/delay.h>
 #include <linux/pci.h>
 #include <asm/reboot_fixups.h>
+#include <asm/msr.h>
 
 static void cs5530a_warm_reset(struct pci_dev *dev)
 {
@@ -21,6 +23,16 @@ static void cs5530a_warm_reset(struct pci_dev *dev)
         return;
 }
 
+static void cs5536_warm_reset(struct pci_dev *dev)
+{
+        /*
+         * 6.6.2.12 Soft Reset (DIVIL_SOFT_RESET)
+         * writing 1 to the LSB of this MSR causes a hard reset.
+         */
+        wrmsrl(0x51400017, 1ULL);
+        udelay(50); /* shouldn't get here but be safe and spin a while */
+}
+
 struct device_fixup {
         unsigned int vendor;
         unsigned int device;
@@ -29,6 +41,7 @@ struct device_fixup {
 
 static struct device_fixup fixups_table[] = {
 { PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5530_LEGACY, cs5530a_warm_reset },
+{ PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_ISA, cs5536_warm_reset },
 };
 
 /*
diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c
index 698c24fe482e..2d61e65eeb50 100644
--- a/arch/i386/kernel/setup.c
+++ b/arch/i386/kernel/setup.c
@@ -102,19 +102,10 @@ static unsigned int highmem_pages = -1;
 /*
  * Setup options
  */
-struct drive_info_struct { char dummy[32]; } drive_info;
-#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_HD) || \
-    defined(CONFIG_BLK_DEV_IDE_MODULE) || defined(CONFIG_BLK_DEV_HD_MODULE)
-EXPORT_SYMBOL(drive_info);
-#endif
 struct screen_info screen_info;
 EXPORT_SYMBOL(screen_info);
 struct apm_info apm_info;
 EXPORT_SYMBOL(apm_info);
-struct sys_desc_table_struct {
-        unsigned short length;
-        unsigned char table[0];
-};
 struct edid_info edid_info;
 EXPORT_SYMBOL_GPL(edid_info);
 struct ist_info ist_info;
@@ -134,7 +125,7 @@ unsigned long saved_videomode;
 
 static char __initdata command_line[COMMAND_LINE_SIZE];
 
-unsigned char __initdata boot_params[PARAM_SIZE];
+struct boot_params __initdata boot_params;
 
 #if defined(CONFIG_EDD) || defined(CONFIG_EDD_MODULE)
 struct edd edd;
@@ -528,7 +519,6 @@ void __init setup_arch(char **cmdline_p)
 #endif
 
         ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV);
-        drive_info = DRIVE_INFO;
         screen_info = SCREEN_INFO;
         edid_info = EDID_INFO;
         apm_info.bios = APM_BIOS_INFO;
diff --git a/arch/i386/kernel/smp.c b/arch/i386/kernel/smp.c
index 706bda72dc60..6299c080f6e2 100644
--- a/arch/i386/kernel/smp.c
+++ b/arch/i386/kernel/smp.c
@@ -421,7 +421,7 @@ void flush_tlb_mm (struct mm_struct * mm)
         }
         if (!cpus_empty(cpu_mask))
                 flush_tlb_others(cpu_mask, mm, TLB_FLUSH_ALL);
-        check_pgt_cache();
+
         preempt_enable();
 }
 
@@ -467,7 +467,7 @@ void flush_tlb_all(void)
  * it goes straight through and wastes no time serializing
  * anything. Worst case is that we lose a reschedule ...
  */
-void native_smp_send_reschedule(int cpu)
+static void native_smp_send_reschedule(int cpu)
 {
         WARN_ON(cpu_is_offline(cpu));
         send_IPI_mask(cpumask_of_cpu(cpu), RESCHEDULE_VECTOR);
@@ -546,9 +546,10 @@ static void __smp_call_function(void (*func) (void *info), void *info,
  * You must not call this function with disabled interrupts or from a
  * hardware interrupt handler or from a bottom half handler.
  */
-int native_smp_call_function_mask(cpumask_t mask,
-                                  void (*func)(void *), void *info,
-                                  int wait)
+static int
+native_smp_call_function_mask(cpumask_t mask,
+                              void (*func)(void *), void *info,
+                              int wait)
 {
         struct call_data_struct data;
         cpumask_t allbutself;
@@ -599,60 +600,6 @@ int native_smp_call_function_mask(cpumask_t mask,
         return 0;
 }
 
-/**
- * smp_call_function(): Run a function on all other CPUs.
- * @func: The function to run. This must be fast and non-blocking.
- * @info: An arbitrary pointer to pass to the function.
- * @nonatomic: Unused.
- * @wait: If true, wait (atomically) until function has completed on other CPUs.
- *
- * Returns 0 on success, else a negative status code.
- *
- * If @wait is true, then returns once @func has returned; otherwise
- * it returns just before the target cpu calls @func.
- *
- * You must not call this function with disabled interrupts or from a
- * hardware interrupt handler or from a bottom half handler.
- */
-int smp_call_function(void (*func) (void *info), void *info, int nonatomic,
-                      int wait)
-{
-        return smp_call_function_mask(cpu_online_map, func, info, wait);
-}
-EXPORT_SYMBOL(smp_call_function);
-
-/**
- * smp_call_function_single - Run a function on another CPU
- * @cpu: The target CPU.  Cannot be the calling CPU.
- * @func: The function to run. This must be fast and non-blocking.
- * @info: An arbitrary pointer to pass to the function.
- * @nonatomic: Unused.
- * @wait: If true, wait until function has completed on other CPUs.
- *
- * Returns 0 on success, else a negative status code.
- *
- * If @wait is true, then returns once @func has returned; otherwise
- * it returns just before the target cpu calls @func.
- */
-int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
-                             int nonatomic, int wait)
-{
-        /* prevent preemption and reschedule on another processor */
-        int ret;
-        int me = get_cpu();
-        if (cpu == me) {
-                WARN_ON(1);
-                put_cpu();
-                return -EBUSY;
-        }
-
-        ret = smp_call_function_mask(cpumask_of_cpu(cpu), func, info, wait);
-
-        put_cpu();
-        return ret;
-}
-EXPORT_SYMBOL(smp_call_function_single);
-
 static void stop_this_cpu (void * dummy)
 {
         local_irq_disable();
@@ -670,7 +617,7 @@ static void stop_this_cpu (void * dummy)
  * this function calls the 'stop' function on all other CPUs in the system.
  */
 
-void native_smp_send_stop(void)
+static void native_smp_send_stop(void)
 {
         /* Don't deadlock on the call lock in panic */
         int nolock = !spin_trylock(&call_lock);
diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c
index b92cc4e8b3bb..0b2954534b8e 100644
--- a/arch/i386/kernel/smpboot.c
+++ b/arch/i386/kernel/smpboot.c
@@ -98,9 +98,6 @@ EXPORT_SYMBOL(x86_cpu_to_apicid);
 
 u8 apicid_2_node[MAX_APICID];
 
-DEFINE_PER_CPU(unsigned long, this_cpu_off);
-EXPORT_PER_CPU_SYMBOL(this_cpu_off);
-
 /*
  * Trampoline 80x86 program as an array.
  */
@@ -763,25 +760,6 @@ static inline struct task_struct * alloc_idle_task(int cpu)
 #define alloc_idle_task(cpu) fork_idle(cpu)
 #endif
 
-/* Initialize the CPU's GDT.  This is either the boot CPU doing itself
-   (still using the master per-cpu area), or a CPU doing it for a
-   secondary which will soon come up. */
-static __cpuinit void init_gdt(int cpu)
-{
-        struct desc_struct *gdt = get_cpu_gdt_table(cpu);
-
-        pack_descriptor((u32 *)&gdt[GDT_ENTRY_PERCPU].a,
-                        (u32 *)&gdt[GDT_ENTRY_PERCPU].b,
-                        __per_cpu_offset[cpu], 0xFFFFF,
-                        0x80 | DESCTYPE_S | 0x2, 0x8);
-
-        per_cpu(this_cpu_off, cpu) = __per_cpu_offset[cpu];
-        per_cpu(cpu_number, cpu) = cpu;
-}
-
-/* Defined in head.S */
-extern struct Xgt_desc_struct early_gdt_descr;
-
 static int __cpuinit do_boot_cpu(int apicid, int cpu)
 /*
  * NOTE - on most systems this is a PHYSICAL apic ID, but on multiquad
@@ -963,18 +941,6 @@ exit:
 }
 #endif
 
-static void smp_tune_scheduling(void)
-{
-        unsigned long cachesize;       /* kB   */
-
-        if (cpu_khz) {
-                cachesize = boot_cpu_data.x86_cache_size;
-
-                if (cachesize > 0)
-                        max_cache_size = cachesize * 1024;
-        }
-}
-
 /*
  * Cycle through the processors sending APIC IPIs to boot each.
  */
@@ -1003,7 +969,6 @@ static void __init smp_boot_cpus(unsigned int max_cpus)
         x86_cpu_to_apicid[0] = boot_cpu_physical_apicid;
 
         current_thread_info()->cpu = 0;
-        smp_tune_scheduling();
 
         set_cpu_sibling_map(0);
 
diff --git a/arch/i386/kernel/smpcommon.c b/arch/i386/kernel/smpcommon.c
new file mode 100644
index 000000000000..1868ae18eb4d
--- /dev/null
+++ b/arch/i386/kernel/smpcommon.c
@@ -0,0 +1,79 @@
+/*
+ * SMP stuff which is common to all sub-architectures.
+ */
+#include <linux/module.h>
+#include <asm/smp.h>
+
+DEFINE_PER_CPU(unsigned long, this_cpu_off);
+EXPORT_PER_CPU_SYMBOL(this_cpu_off);
+
+/* Initialize the CPU's GDT.  This is either the boot CPU doing itself
+   (still using the master per-cpu area), or a CPU doing it for a
+   secondary which will soon come up. */
+__cpuinit void init_gdt(int cpu)
+{
+        struct desc_struct *gdt = get_cpu_gdt_table(cpu);
+
+        pack_descriptor((u32 *)&gdt[GDT_ENTRY_PERCPU].a,
+                        (u32 *)&gdt[GDT_ENTRY_PERCPU].b,
+                        __per_cpu_offset[cpu], 0xFFFFF,
+                        0x80 | DESCTYPE_S | 0x2, 0x8);
+
+        per_cpu(this_cpu_off, cpu) = __per_cpu_offset[cpu];
+        per_cpu(cpu_number, cpu) = cpu;
+}
+
+
+/**
+ * smp_call_function(): Run a function on all other CPUs.
+ * @func: The function to run. This must be fast and non-blocking.
+ * @info: An arbitrary pointer to pass to the function.
+ * @nonatomic: Unused.
+ * @wait: If true, wait (atomically) until function has completed on other CPUs.
+ *
+ * Returns 0 on success, else a negative status code.
+ *
+ * If @wait is true, then returns once @func has returned; otherwise
+ * it returns just before the target cpu calls @func.
+ *
+ * You must not call this function with disabled interrupts or from a
+ * hardware interrupt handler or from a bottom half handler.
+ */
+int smp_call_function(void (*func) (void *info), void *info, int nonatomic,
+                      int wait)
+{
+        return smp_call_function_mask(cpu_online_map, func, info, wait);
+}
+EXPORT_SYMBOL(smp_call_function);
+
+/**
+ * smp_call_function_single - Run a function on another CPU
+ * @cpu: The target CPU.  Cannot be the calling CPU.
+ * @func: The function to run. This must be fast and non-blocking.
+ * @info: An arbitrary pointer to pass to the function.
+ * @nonatomic: Unused.
+ * @wait: If true, wait until function has completed on other CPUs.
+ *
+ * Returns 0 on success, else a negative status code.
+ *
+ * If @wait is true, then returns once @func has returned; otherwise
+ * it returns just before the target cpu calls @func.
+ */
+int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
+                             int nonatomic, int wait)
+{
+        /* prevent preemption and reschedule on another processor */
+        int ret;
+        int me = get_cpu();
+        if (cpu == me) {
+                WARN_ON(1);
+                put_cpu();
+                return -EBUSY;
+        }
+
+        ret = smp_call_function_mask(cpumask_of_cpu(cpu), func, info, wait);
+
+        put_cpu();
+        return ret;
+}
+EXPORT_SYMBOL(smp_call_function_single);
diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c
index c05e7e861b29..90da0575fcff 100644
--- a/arch/i386/kernel/traps.c
+++ b/arch/i386/kernel/traps.c
@@ -733,11 +733,6 @@ static __kprobes void default_do_nmi(struct pt_regs * regs)
                  */
                 if (nmi_watchdog_tick(regs, reason))
                         return;
-#endif
-                if (notify_die(DIE_NMI_POST, "nmi_post", regs, reason, 2, 0)
-                                                        == NOTIFY_STOP)
-                        return;
-#ifdef CONFIG_X86_LOCAL_APIC
                 if (!do_nmi_callback(regs, smp_processor_id()))
 #endif
                         unknown_nmi_error(reason, regs);
diff --git a/arch/i386/kernel/tsc.c b/arch/i386/kernel/tsc.c
index f64b81f3033b..ea63a30ca3e8 100644
--- a/arch/i386/kernel/tsc.c
+++ b/arch/i386/kernel/tsc.c
@@ -4,6 +4,7 @@
  * See comments there for proper credits.
  */
 
+#include <linux/sched.h>
 #include <linux/clocksource.h>
 #include <linux/workqueue.h>
 #include <linux/cpufreq.h>
@@ -106,8 +107,13 @@ unsigned long long sched_clock(void)
 
         /*
          * Fall back to jiffies if there's no TSC available:
+         * ( But note that we still use it if the TSC is marked
+         *   unstable. We do this because unlike Time Of Day,
+         *   the scheduler clock tolerates small errors and it's
+         *   very important for it to be as fast as the platform
+         *   can achive it. )
          */
-        if (unlikely(!tsc_enabled))
+        if (unlikely(!tsc_enabled && !tsc_unstable))
                 /* No locking but a rare wrong value is not a big deal: */
                 return (jiffies_64 - INITIAL_JIFFIES) * (1000000000 / HZ);
 
@@ -277,6 +283,7 @@ static struct clocksource clocksource_tsc = {
 
 void mark_tsc_unstable(char *reason)
 {
+        sched_clock_unstable_event();
         if (!tsc_unstable) {
                 tsc_unstable = 1;
                 tsc_enabled = 0;
diff --git a/arch/i386/kernel/verify_cpu.S b/arch/i386/kernel/verify_cpu.S
deleted file mode 100644
index b2a9d80b6421..000000000000
--- a/arch/i386/kernel/verify_cpu.S
+++ /dev/null
@@ -1,67 +0,0 @@
-/* Check if CPU has some minimum CPUID bits
-   This runs in 16bit mode so that the caller can still use the BIOS
-   to output errors on the screen */
-#include <asm/cpufeature.h>
-
-verify_cpu:
-        pushfl                          # Save caller passed flags
-        pushl   $0                      # Kill any dangerous flags
-        popfl
-
-#if CONFIG_X86_MINIMUM_CPU_MODEL >= 4
-        pushfl
-        pop     %eax
-        orl     $(1<<18),%eax           # try setting AC
-        push    %eax
-        popfl
-        pushfl
-        popl    %eax
-        testl   $(1<<18),%eax
-        jz      bad
-#endif
-#if REQUIRED_MASK1 != 0
-        pushfl                          # standard way to check for cpuid
-        popl    %eax
-        movl    %eax,%ebx
-        xorl    $0x200000,%eax
-        pushl   %eax
-        popfl
-        pushfl
-        popl    %eax
-        cmpl    %eax,%ebx
-        pushfl                          # standard way to check for cpuid
-        popl    %eax
-        movl    %eax,%ebx
-        xorl    $0x200000,%eax
-        pushl   %eax
-        popfl
-        pushfl
-        popl    %eax
-        cmpl    %eax,%ebx
-        jz      bad                     # REQUIRED_MASK1 != 0 requires CPUID
-
-        movl    $0x0,%eax               # See if cpuid 1 is implemented
-        cpuid
-        cmpl    $0x1,%eax
-        jb      bad                     # no cpuid 1
-
-        movl    $0x1,%eax               # Does the cpu have what it takes
-        cpuid
-
-#if CONFIG_X86_MINIMUM_CPU_MODEL > 4
-#error  add proper model checking here
-#endif
-
-        andl    $REQUIRED_MASK1,%edx
-        xorl    $REQUIRED_MASK1,%edx
-        jnz     bad
-#endif /* REQUIRED_MASK1 */
-
-        popfl
-        xor     %eax,%eax
-        ret
-
-bad:
-        popfl
-        movl    $1,%eax
-        ret
diff --git a/arch/i386/kernel/vmi.c b/arch/i386/kernel/vmi.c
index c8726c424b35..c12720d7cbc5 100644
--- a/arch/i386/kernel/vmi.c
+++ b/arch/i386/kernel/vmi.c
@@ -27,6 +27,7 @@
 #include <linux/bootmem.h>
 #include <linux/mm.h>
 #include <linux/highmem.h>
+#include <linux/sched.h>
 #include <asm/vmi.h>
 #include <asm/io.h>
 #include <asm/fixmap.h>
diff --git a/arch/i386/kernel/vmlinux.lds.S b/arch/i386/kernel/vmlinux.lds.S
index 80bec6640230..aa87b06c7c82 100644
--- a/arch/i386/kernel/vmlinux.lds.S
+++ b/arch/i386/kernel/vmlinux.lds.S
@@ -44,7 +44,7 @@ SECTIONS
 
   /* read-only */
   .text : AT(ADDR(.text) - LOAD_OFFSET) {
-        *(.text)
+        TEXT_TEXT
         SCHED_TEXT
         LOCK_TEXT
         KPROBES_TEXT
@@ -74,7 +74,7 @@ SECTIONS
   /* writeable */
   . = ALIGN(4096);
   .data : AT(ADDR(.data) - LOAD_OFFSET) {       /* Data */
-        *(.data)
+        DATA_DATA
         CONSTRUCTORS
         } :data