Manual merge with Linus.

Conflicts:
	arch/powerpc/kernel/setup-common.c
	drivers/input/keyboard/hil_kbd.c
	drivers/input/mouse/hil_ptr.c

55 files changed, 1421 insertions, 790 deletions

diff --git a/arch/i386/kernel/Makefile b/arch/i386/kernel/Makefile
index 65656c033d70..5b9ed21216cf 100644
--- a/arch/i386/kernel/Makefile
+++ b/arch/i386/kernel/Makefile
@@ -7,7 +7,7 @@ extra-y := head.o init_task.o vmlinux.lds
 obj-y   := process.o semaphore.o signal.o entry.o traps.o irq.o \
                 ptrace.o time.o ioport.o ldt.o setup.o i8259.o sys_i386.o \
                 pci-dma.o i386_ksyms.o i387.o dmi_scan.o bootflag.o \
-                quirks.o i8237.o topology.o
+                quirks.o i8237.o topology.o alternative.o
 
 obj-y                           += cpu/
 obj-y                           += timers/
diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c
index f1a21945963d..033066176b3e 100644
--- a/arch/i386/kernel/acpi/boot.c
+++ b/arch/i386/kernel/acpi/boot.c
@@ -668,10 +668,10 @@ unsigned long __init acpi_find_rsdp(void)
         unsigned long rsdp_phys = 0;
 
         if (efi_enabled) {
-                if (efi.acpi20)
-                        return __pa(efi.acpi20);
-                else if (efi.acpi)
-                        return __pa(efi.acpi);
+                if (efi.acpi20 != EFI_INVALID_TABLE_ADDR)
+                        return efi.acpi20;
+                else if (efi.acpi != EFI_INVALID_TABLE_ADDR)
+                        return efi.acpi;
         }
         /*
          * Scan memory looking for the RSDP signature. First search EBDA (low
diff --git a/arch/i386/kernel/alternative.c b/arch/i386/kernel/alternative.c
new file mode 100644
index 000000000000..5cbd6f99fb2a
--- /dev/null
+++ b/arch/i386/kernel/alternative.c
@@ -0,0 +1,321 @@
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <linux/list.h>
+#include <asm/alternative.h>
+#include <asm/sections.h>
+
+#define DEBUG 0
+#if DEBUG
+# define DPRINTK(fmt, args...) printk(fmt, args)
+#else
+# define DPRINTK(fmt, args...)
+#endif
+
+/* Use inline assembly to define this because the nops are defined
+   as inline assembly strings in the include files and we cannot
+   get them easily into strings. */
+asm("\t.data\nintelnops: "
+        GENERIC_NOP1 GENERIC_NOP2 GENERIC_NOP3 GENERIC_NOP4 GENERIC_NOP5 GENERIC_NOP6
+        GENERIC_NOP7 GENERIC_NOP8);
+asm("\t.data\nk8nops: "
+        K8_NOP1 K8_NOP2 K8_NOP3 K8_NOP4 K8_NOP5 K8_NOP6
+        K8_NOP7 K8_NOP8);
+asm("\t.data\nk7nops: "
+        K7_NOP1 K7_NOP2 K7_NOP3 K7_NOP4 K7_NOP5 K7_NOP6
+        K7_NOP7 K7_NOP8);
+
+extern unsigned char intelnops[], k8nops[], k7nops[];
+static unsigned char *intel_nops[ASM_NOP_MAX+1] = {
+        NULL,
+        intelnops,
+        intelnops + 1,
+        intelnops + 1 + 2,
+        intelnops + 1 + 2 + 3,
+        intelnops + 1 + 2 + 3 + 4,
+        intelnops + 1 + 2 + 3 + 4 + 5,
+        intelnops + 1 + 2 + 3 + 4 + 5 + 6,
+        intelnops + 1 + 2 + 3 + 4 + 5 + 6 + 7,
+};
+static unsigned char *k8_nops[ASM_NOP_MAX+1] = {
+        NULL,
+        k8nops,
+        k8nops + 1,
+        k8nops + 1 + 2,
+        k8nops + 1 + 2 + 3,
+        k8nops + 1 + 2 + 3 + 4,
+        k8nops + 1 + 2 + 3 + 4 + 5,
+        k8nops + 1 + 2 + 3 + 4 + 5 + 6,
+        k8nops + 1 + 2 + 3 + 4 + 5 + 6 + 7,
+};
+static unsigned char *k7_nops[ASM_NOP_MAX+1] = {
+        NULL,
+        k7nops,
+        k7nops + 1,
+        k7nops + 1 + 2,
+        k7nops + 1 + 2 + 3,
+        k7nops + 1 + 2 + 3 + 4,
+        k7nops + 1 + 2 + 3 + 4 + 5,
+        k7nops + 1 + 2 + 3 + 4 + 5 + 6,
+        k7nops + 1 + 2 + 3 + 4 + 5 + 6 + 7,
+};
+static struct nop {
+        int cpuid;
+        unsigned char **noptable;
+} noptypes[] = {
+        { X86_FEATURE_K8, k8_nops },
+        { X86_FEATURE_K7, k7_nops },
+        { -1, NULL }
+};
+
+
+extern struct alt_instr __alt_instructions[], __alt_instructions_end[];
+extern struct alt_instr __smp_alt_instructions[], __smp_alt_instructions_end[];
+extern u8 *__smp_locks[], *__smp_locks_end[];
+
+extern u8 __smp_alt_begin[], __smp_alt_end[];
+
+
+static unsigned char** find_nop_table(void)
+{
+        unsigned char **noptable = intel_nops;
+        int i;
+
+        for (i = 0; noptypes[i].cpuid >= 0; i++) {
+                if (boot_cpu_has(noptypes[i].cpuid)) {
+                        noptable = noptypes[i].noptable;
+                        break;
+                }
+        }
+        return noptable;
+}
+
+/* Replace instructions with better alternatives for this CPU type.
+   This runs before SMP is initialized to avoid SMP problems with
+   self modifying code. This implies that assymetric systems where
+   APs have less capabilities than the boot processor are not handled.
+   Tough. Make sure you disable such features by hand. */
+
+void apply_alternatives(struct alt_instr *start, struct alt_instr *end)
+{
+        unsigned char **noptable = find_nop_table();
+        struct alt_instr *a;
+        int diff, i, k;
+
+        DPRINTK("%s: alt table %p -> %p\n", __FUNCTION__, start, end);
+        for (a = start; a < end; a++) {
+                BUG_ON(a->replacementlen > a->instrlen);
+                if (!boot_cpu_has(a->cpuid))
+                        continue;
+                memcpy(a->instr, a->replacement, a->replacementlen);
+                diff = a->instrlen - a->replacementlen;
+                /* Pad the rest with nops */
+                for (i = a->replacementlen; diff > 0; diff -= k, i += k) {
+                        k = diff;
+                        if (k > ASM_NOP_MAX)
+                                k = ASM_NOP_MAX;
+                        memcpy(a->instr + i, noptable[k], k);
+                }
+        }
+}
+
+static void alternatives_smp_save(struct alt_instr *start, struct alt_instr *end)
+{
+        struct alt_instr *a;
+
+        DPRINTK("%s: alt table %p-%p\n", __FUNCTION__, start, end);
+        for (a = start; a < end; a++) {
+                memcpy(a->replacement + a->replacementlen,
+                       a->instr,
+                       a->instrlen);
+        }
+}
+
+static void alternatives_smp_apply(struct alt_instr *start, struct alt_instr *end)
+{
+        struct alt_instr *a;
+
+        for (a = start; a < end; a++) {
+                memcpy(a->instr,
+                       a->replacement + a->replacementlen,
+                       a->instrlen);
+        }
+}
+
+static void alternatives_smp_lock(u8 **start, u8 **end, u8 *text, u8 *text_end)
+{
+        u8 **ptr;
+
+        for (ptr = start; ptr < end; ptr++) {
+                if (*ptr < text)
+                        continue;
+                if (*ptr > text_end)
+                        continue;
+                **ptr = 0xf0; /* lock prefix */
+        };
+}
+
+static void alternatives_smp_unlock(u8 **start, u8 **end, u8 *text, u8 *text_end)
+{
+        unsigned char **noptable = find_nop_table();
+        u8 **ptr;
+
+        for (ptr = start; ptr < end; ptr++) {
+                if (*ptr < text)
+                        continue;
+                if (*ptr > text_end)
+                        continue;
+                **ptr = noptable[1][0];
+        };
+}
+
+struct smp_alt_module {
+        /* what is this ??? */
+        struct module   *mod;
+        char            *name;
+
+        /* ptrs to lock prefixes */
+        u8              **locks;
+        u8              **locks_end;
+
+        /* .text segment, needed to avoid patching init code ;) */
+        u8              *text;
+        u8              *text_end;
+
+        struct list_head next;
+};
+static LIST_HEAD(smp_alt_modules);
+static DEFINE_SPINLOCK(smp_alt);
+
+static int smp_alt_once = 0;
+static int __init bootonly(char *str)
+{
+        smp_alt_once = 1;
+        return 1;
+}
+__setup("smp-alt-boot", bootonly);
+
+void alternatives_smp_module_add(struct module *mod, char *name,
+                                 void *locks, void *locks_end,
+                                 void *text,  void *text_end)
+{
+        struct smp_alt_module *smp;
+        unsigned long flags;
+
+        if (smp_alt_once) {
+                if (boot_cpu_has(X86_FEATURE_UP))
+                        alternatives_smp_unlock(locks, locks_end,
+                                                text, text_end);
+                return;
+        }
+
+        smp = kzalloc(sizeof(*smp), GFP_KERNEL);
+        if (NULL == smp)
+                return; /* we'll run the (safe but slow) SMP code then ... */
+
+        smp->mod        = mod;
+        smp->name       = name;
+        smp->locks      = locks;
+        smp->locks_end  = locks_end;
+        smp->text       = text;
+        smp->text_end   = text_end;
+        DPRINTK("%s: locks %p -> %p, text %p -> %p, name %s\n",
+                __FUNCTION__, smp->locks, smp->locks_end,
+                smp->text, smp->text_end, smp->name);
+
+        spin_lock_irqsave(&smp_alt, flags);
+        list_add_tail(&smp->next, &smp_alt_modules);
+        if (boot_cpu_has(X86_FEATURE_UP))
+                alternatives_smp_unlock(smp->locks, smp->locks_end,
+                                        smp->text, smp->text_end);
+        spin_unlock_irqrestore(&smp_alt, flags);
+}
+
+void alternatives_smp_module_del(struct module *mod)
+{
+        struct smp_alt_module *item;
+        unsigned long flags;
+
+        if (smp_alt_once)
+                return;
+
+        spin_lock_irqsave(&smp_alt, flags);
+        list_for_each_entry(item, &smp_alt_modules, next) {
+                if (mod != item->mod)
+                        continue;
+                list_del(&item->next);
+                spin_unlock_irqrestore(&smp_alt, flags);
+                DPRINTK("%s: %s\n", __FUNCTION__, item->name);
+                kfree(item);
+                return;
+        }
+        spin_unlock_irqrestore(&smp_alt, flags);
+}
+
+void alternatives_smp_switch(int smp)
+{
+        struct smp_alt_module *mod;
+        unsigned long flags;
+
+        if (smp_alt_once)
+                return;
+        BUG_ON(!smp && (num_online_cpus() > 1));
+
+        spin_lock_irqsave(&smp_alt, flags);
+        if (smp) {
+                printk(KERN_INFO "SMP alternatives: switching to SMP code\n");
+                clear_bit(X86_FEATURE_UP, boot_cpu_data.x86_capability);
+                clear_bit(X86_FEATURE_UP, cpu_data[0].x86_capability);
+                alternatives_smp_apply(__smp_alt_instructions,
+                                       __smp_alt_instructions_end);
+                list_for_each_entry(mod, &smp_alt_modules, next)
+                        alternatives_smp_lock(mod->locks, mod->locks_end,
+                                              mod->text, mod->text_end);
+        } else {
+                printk(KERN_INFO "SMP alternatives: switching to UP code\n");
+                set_bit(X86_FEATURE_UP, boot_cpu_data.x86_capability);
+                set_bit(X86_FEATURE_UP, cpu_data[0].x86_capability);
+                apply_alternatives(__smp_alt_instructions,
+                                   __smp_alt_instructions_end);
+                list_for_each_entry(mod, &smp_alt_modules, next)
+                        alternatives_smp_unlock(mod->locks, mod->locks_end,
+                                                mod->text, mod->text_end);
+        }
+        spin_unlock_irqrestore(&smp_alt, flags);
+}
+
+void __init alternative_instructions(void)
+{
+        apply_alternatives(__alt_instructions, __alt_instructions_end);
+
+        /* switch to patch-once-at-boottime-only mode and free the
+         * tables in case we know the number of CPUs will never ever
+         * change */
+#ifdef CONFIG_HOTPLUG_CPU
+        if (num_possible_cpus() < 2)
+                smp_alt_once = 1;
+#else
+        smp_alt_once = 1;
+#endif
+
+        if (smp_alt_once) {
+                if (1 == num_possible_cpus()) {
+                        printk(KERN_INFO "SMP alternatives: switching to UP code\n");
+                        set_bit(X86_FEATURE_UP, boot_cpu_data.x86_capability);
+                        set_bit(X86_FEATURE_UP, cpu_data[0].x86_capability);
+                        apply_alternatives(__smp_alt_instructions,
+                                           __smp_alt_instructions_end);
+                        alternatives_smp_unlock(__smp_locks, __smp_locks_end,
+                                                _text, _etext);
+                }
+                free_init_pages("SMP alternatives",
+                                (unsigned long)__smp_alt_begin,
+                                (unsigned long)__smp_alt_end);
+        } else {
+                alternatives_smp_save(__smp_alt_instructions,
+                                      __smp_alt_instructions_end);
+                alternatives_smp_module_add(NULL, "core kernel",
+                                            __smp_locks, __smp_locks_end,
+                                            _text, _etext);
+                alternatives_smp_switch(0);
+        }
+}
diff --git a/arch/i386/kernel/apic.c b/arch/i386/kernel/apic.c
index f39e09ef64ec..6273bf74c203 100644
--- a/arch/i386/kernel/apic.c
+++ b/arch/i386/kernel/apic.c
@@ -38,6 +38,7 @@
 #include <asm/i8253.h>
 
 #include <mach_apic.h>
+#include <mach_apicdef.h>
 #include <mach_ipi.h>
 
 #include "io_ports.h"
@@ -414,6 +415,7 @@ void __init init_bsp_APIC(void)
 void __devinit setup_local_APIC(void)
 {
         unsigned long oldvalue, value, ver, maxlvt;
+        int i, j;
 
         /* Pound the ESR really hard over the head with a big hammer - mbligh */
         if (esr_disable) {
@@ -451,6 +453,25 @@ void __devinit setup_local_APIC(void)
         apic_write_around(APIC_TASKPRI, value);
 
         /*
+         * After a crash, we no longer service the interrupts and a pending
+         * interrupt from previous kernel might still have ISR bit set.
+         *
+         * Most probably by now CPU has serviced that pending interrupt and
+         * it might not have done the ack_APIC_irq() because it thought,
+         * interrupt came from i8259 as ExtInt. LAPIC did not get EOI so it
+         * does not clear the ISR bit and cpu thinks it has already serivced
+         * the interrupt. Hence a vector might get locked. It was noticed
+         * for timer irq (vector 0x31). Issue an extra EOI to clear ISR.
+         */
+        for (i = APIC_ISR_NR - 1; i >= 0; i--) {
+                value = apic_read(APIC_ISR + i*0x10);
+                for (j = 31; j >= 0; j--) {
+                        if (value & (1<<j))
+                                ack_APIC_irq();
+                }
+        }
+
+        /*
          * Now that we are all set up, enable the APIC
          */
         value = apic_read(APIC_SPIV);
@@ -570,16 +591,18 @@ void __devinit setup_local_APIC(void)
  */
 void lapic_shutdown(void)
 {
+        unsigned long flags;
+
         if (!cpu_has_apic)
                 return;
 
-        local_irq_disable();
+        local_irq_save(flags);
         clear_local_APIC();
 
         if (enabled_via_apicbase)
                 disable_local_APIC();
 
-        local_irq_enable();
+        local_irq_restore(flags);
 }
 
 #ifdef CONFIG_PM
@@ -729,7 +752,7 @@ static int __init apic_set_verbosity(char *str)
                 printk(KERN_WARNING "APIC Verbosity level %s not recognised"
                                 " use apic=verbose or apic=debug\n", str);
 
-        return 0;
+        return 1;
 }
 
 __setup("apic=", apic_set_verbosity);
diff --git a/arch/i386/kernel/apm.c b/arch/i386/kernel/apm.c
index 05312a8abb8b..da30a374dd4e 100644
--- a/arch/i386/kernel/apm.c
+++ b/arch/i386/kernel/apm.c
@@ -824,8 +824,6 @@ static void apm_do_busy(void)
 
 static void (*original_pm_idle)(void);
 
-extern void default_idle(void);
-
 /**
  * apm_cpu_idle         -       cpu idling for APM capable Linux
  *
diff --git a/arch/i386/kernel/cpu/centaur.c b/arch/i386/kernel/cpu/centaur.c
index f52669ecb93f..bd75629dd262 100644
--- a/arch/i386/kernel/cpu/centaur.c
+++ b/arch/i386/kernel/cpu/centaur.c
@@ -4,6 +4,7 @@
 #include <asm/processor.h>
 #include <asm/msr.h>
 #include <asm/e820.h>
+#include <asm/mtrr.h>
 #include "cpu.h"
 
 #ifdef CONFIG_X86_OOSTORE
diff --git a/arch/i386/kernel/cpu/common.c b/arch/i386/kernel/cpu/common.c
index e6bd095ae108..a06a49075f10 100644
--- a/arch/i386/kernel/cpu/common.c
+++ b/arch/i386/kernel/cpu/common.c
@@ -25,9 +25,10 @@ EXPORT_PER_CPU_SYMBOL(cpu_gdt_descr);
 DEFINE_PER_CPU(unsigned char, cpu_16bit_stack[CPU_16BIT_STACK_SIZE]);
 EXPORT_PER_CPU_SYMBOL(cpu_16bit_stack);
 
-static int cachesize_override __devinitdata = -1;
-static int disable_x86_fxsr __devinitdata = 0;
-static int disable_x86_serial_nr __devinitdata = 1;
+static int cachesize_override __cpuinitdata = -1;
+static int disable_x86_fxsr __cpuinitdata;
+static int disable_x86_serial_nr __cpuinitdata = 1;
+static int disable_x86_sep __cpuinitdata;
 
 struct cpu_dev * cpu_devs[X86_VENDOR_NUM] = {};
 
@@ -59,7 +60,7 @@ static int __init cachesize_setup(char *str)
 }
 __setup("cachesize=", cachesize_setup);
 
-int __devinit get_model_name(struct cpuinfo_x86 *c)
+int __cpuinit get_model_name(struct cpuinfo_x86 *c)
 {
         unsigned int *v;
         char *p, *q;
@@ -89,7 +90,7 @@ int __devinit get_model_name(struct cpuinfo_x86 *c)
 }
 
 
-void __devinit display_cacheinfo(struct cpuinfo_x86 *c)
+void __cpuinit display_cacheinfo(struct cpuinfo_x86 *c)
 {
         unsigned int n, dummy, ecx, edx, l2size;
 
@@ -130,7 +131,7 @@ void __devinit display_cacheinfo(struct cpuinfo_x86 *c)
 /* in particular, if CPUID levels 0x80000002..4 are supported, this isn't used */
 
 /* Look up CPU names by table lookup. */
-static char __devinit *table_lookup_model(struct cpuinfo_x86 *c)
+static char __cpuinit *table_lookup_model(struct cpuinfo_x86 *c)
 {
         struct cpu_model_info *info;
 
@@ -151,7 +152,7 @@ static char __devinit *table_lookup_model(struct cpuinfo_x86 *c)
 }
 
 
-static void __devinit get_cpu_vendor(struct cpuinfo_x86 *c, int early)
+static void __cpuinit get_cpu_vendor(struct cpuinfo_x86 *c, int early)
 {
         char *v = c->x86_vendor_id;
         int i;
@@ -187,6 +188,14 @@ static int __init x86_fxsr_setup(char * s)
 __setup("nofxsr", x86_fxsr_setup);
 
 
+static int __init x86_sep_setup(char * s)
+{
+        disable_x86_sep = 1;
+        return 1;
+}
+__setup("nosep", x86_sep_setup);
+
+
 /* Standard macro to see if a specific flag is changeable */
 static inline int flag_is_changeable_p(u32 flag)
 {
@@ -210,7 +219,7 @@ static inline int flag_is_changeable_p(u32 flag)
 
 
 /* Probe for the CPUID instruction */
-static int __devinit have_cpuid_p(void)
+static int __cpuinit have_cpuid_p(void)
 {
         return flag_is_changeable_p(X86_EFLAGS_ID);
 }
@@ -254,10 +263,10 @@ static void __init early_cpu_detect(void)
         }
 }
 
-void __devinit generic_identify(struct cpuinfo_x86 * c)
+void __cpuinit generic_identify(struct cpuinfo_x86 * c)
 {
         u32 tfms, xlvl;
-        int junk;
+        int ebx;
 
         if (have_cpuid_p()) {
                 /* Get vendor name */
@@ -273,7 +282,7 @@ void __devinit generic_identify(struct cpuinfo_x86 * c)
                 /* Intel-defined flags: level 0x00000001 */
                 if ( c->cpuid_level >= 0x00000001 ) {
                         u32 capability, excap;
-                        cpuid(0x00000001, &tfms, &junk, &excap, &capability);
+                        cpuid(0x00000001, &tfms, &ebx, &excap, &capability);
                         c->x86_capability[0] = capability;
                         c->x86_capability[4] = excap;
                         c->x86 = (tfms >> 8) & 15;
@@ -283,6 +292,11 @@ void __devinit generic_identify(struct cpuinfo_x86 * c)
                         if (c->x86 >= 0x6)
                                 c->x86_model += ((tfms >> 16) & 0xF) << 4;
                         c->x86_mask = tfms & 15;
+#ifdef CONFIG_SMP
+                        c->apicid = phys_pkg_id((ebx >> 24) & 0xFF, 0);
+#else
+                        c->apicid = (ebx >> 24) & 0xFF;
+#endif
                 } else {
                         /* Have CPUID level 0 only - unheard of */
                         c->x86 = 4;
@@ -307,7 +321,7 @@ void __devinit generic_identify(struct cpuinfo_x86 * c)
 #endif
 }
 
-static void __devinit squash_the_stupid_serial_number(struct cpuinfo_x86 *c)
+static void __cpuinit squash_the_stupid_serial_number(struct cpuinfo_x86 *c)
 {
         if (cpu_has(c, X86_FEATURE_PN) && disable_x86_serial_nr ) {
                 /* Disable processor serial number */
@@ -335,7 +349,7 @@ __setup("serialnumber", x86_serial_nr_setup);
 /*
  * This does the hard work of actually picking apart the CPU stuff...
  */
-void __devinit identify_cpu(struct cpuinfo_x86 *c)
+void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 {
         int i;
 
@@ -405,6 +419,10 @@ void __devinit identify_cpu(struct cpuinfo_x86 *c)
                 clear_bit(X86_FEATURE_XMM, c->x86_capability);
         }
 
+        /* SEP disabled? */
+        if (disable_x86_sep)
+                clear_bit(X86_FEATURE_SEP, c->x86_capability);
+
         if (disable_pse)
                 clear_bit(X86_FEATURE_PSE, c->x86_capability);
 
@@ -417,7 +435,7 @@ void __devinit identify_cpu(struct cpuinfo_x86 *c)
                 else
                         /* Last resort... */
                         sprintf(c->x86_model_id, "%02x/%02x",
-                                c->x86_vendor, c->x86_model);
+                                c->x86, c->x86_model);
         }
 
         /* Now the feature flags better reflect actual CPU features! */
@@ -453,7 +471,7 @@ void __devinit identify_cpu(struct cpuinfo_x86 *c)
 }
 
 #ifdef CONFIG_X86_HT
-void __devinit detect_ht(struct cpuinfo_x86 *c)
+void __cpuinit detect_ht(struct cpuinfo_x86 *c)
 {
         u32     eax, ebx, ecx, edx;
         int     index_msb, core_bits;
@@ -461,7 +479,6 @@ void __devinit detect_ht(struct cpuinfo_x86 *c)
 
         cpuid(1, &eax, &ebx, &ecx, &edx);
 
-        c->apicid = phys_pkg_id((ebx >> 24) & 0xFF, 0);
 
         if (!cpu_has(c, X86_FEATURE_HT) || cpu_has(c, X86_FEATURE_CMP_LEGACY))
                 return;
@@ -500,7 +517,7 @@ void __devinit detect_ht(struct cpuinfo_x86 *c)
 }
 #endif
 
-void __devinit print_cpu_info(struct cpuinfo_x86 *c)
+void __cpuinit print_cpu_info(struct cpuinfo_x86 *c)
 {
         char *vendor = NULL;
 
@@ -523,7 +540,7 @@ void __devinit print_cpu_info(struct cpuinfo_x86 *c)
                 printk("\n");
 }
 
-cpumask_t cpu_initialized __devinitdata = CPU_MASK_NONE;
+cpumask_t cpu_initialized __cpuinitdata = CPU_MASK_NONE;
 
 /* This is hacky. :)
  * We're emulating future behavior.
@@ -570,7 +587,7 @@ void __init early_cpu_init(void)
  * and IDT. We reload them nevertheless, this function acts as a
  * 'CPU state barrier', nothing should get across.
  */
-void __devinit cpu_init(void)
+void __cpuinit cpu_init(void)
 {
         int cpu = smp_processor_id();
         struct tss_struct * t = &per_cpu(init_tss, cpu);
@@ -670,7 +687,7 @@ void __devinit cpu_init(void)
 }
 
 #ifdef CONFIG_HOTPLUG_CPU
-void __devinit cpu_uninit(void)
+void __cpuinit cpu_uninit(void)
 {
         int cpu = raw_smp_processor_id();
         cpu_clear(cpu, cpu_initialized);
diff --git a/arch/i386/kernel/cpu/cpufreq/Kconfig b/arch/i386/kernel/cpu/cpufreq/Kconfig
index 26892d2099b0..e44a4c6a4fe5 100644
--- a/arch/i386/kernel/cpu/cpufreq/Kconfig
+++ b/arch/i386/kernel/cpu/cpufreq/Kconfig
@@ -96,7 +96,6 @@ config X86_POWERNOW_K8_ACPI
 
 config X86_GX_SUSPMOD
         tristate "Cyrix MediaGX/NatSemi Geode Suspend Modulation"
-        depends on PCI
         help
          This add the CPUFreq driver for NatSemi Geode processors which
          support suspend modulation.
@@ -115,9 +114,9 @@ config X86_SPEEDSTEP_CENTRINO
           you also need to say Y to "Use ACPI tables to decode..." below
           [which might imply enabling ACPI] if you want to use this driver
           on non-Banias CPUs.
-          
+
           For details, take a look at <file:Documentation/cpu-freq/>.
-          
+
           If in doubt, say N.
 
 config X86_SPEEDSTEP_CENTRINO_ACPI
@@ -148,7 +147,7 @@ config X86_SPEEDSTEP_ICH
         help
           This adds the CPUFreq driver for certain mobile Intel Pentium III
           (Coppermine), all mobile Intel Pentium III-M (Tualatin) and all
-          mobile Intel Pentium 4 P4-M on systems which have an Intel ICH2, 
+          mobile Intel Pentium 4 P4-M on systems which have an Intel ICH2,
           ICH3 or ICH4 southbridge.
 
           For details, take a look at <file:Documentation/cpu-freq/>.
@@ -161,7 +160,7 @@ config X86_SPEEDSTEP_SMI
         depends on EXPERIMENTAL
         help
           This adds the CPUFreq driver for certain mobile Intel Pentium III
-          (Coppermine), all mobile Intel Pentium III-M (Tualatin)  
+          (Coppermine), all mobile Intel Pentium III-M (Tualatin)
           on systems which have an Intel 440BX/ZX/MX southbridge.
 
           For details, take a look at <file:Documentation/cpu-freq/>.
@@ -203,9 +202,10 @@ config X86_LONGRUN
 config X86_LONGHAUL
         tristate "VIA Cyrix III Longhaul"
         select CPU_FREQ_TABLE
+        depends on BROKEN
         help
-          This adds the CPUFreq driver for VIA Samuel/CyrixIII, 
-          VIA Cyrix Samuel/C3, VIA Cyrix Ezra and VIA Cyrix Ezra-T 
+          This adds the CPUFreq driver for VIA Samuel/CyrixIII,
+          VIA Cyrix Samuel/C3, VIA Cyrix Ezra and VIA Cyrix Ezra-T
           processors.
 
           For details, take a look at <file:Documentation/cpu-freq/>.
@@ -215,11 +215,11 @@ config X86_LONGHAUL
 comment "shared options"
 
 config X86_ACPI_CPUFREQ_PROC_INTF
-        bool "/proc/acpi/processor/../performance interface (deprecated)"
+        bool "/proc/acpi/processor/../performance interface (deprecated)"
         depends on PROC_FS
         depends on X86_ACPI_CPUFREQ || X86_SPEEDSTEP_CENTRINO_ACPI || X86_POWERNOW_K7_ACPI || X86_POWERNOW_K8_ACPI
         help
-          This enables the deprecated /proc/acpi/processor/../performance 
+          This enables the deprecated /proc/acpi/processor/../performance
           interface. While it is helpful for debugging, the generic,
           cross-architecture cpufreq interfaces should be used.
 
@@ -233,9 +233,9 @@ config X86_SPEEDSTEP_RELAXED_CAP_CHECK
         bool "Relaxed speedstep capability checks"
         depends on (X86_SPEEDSTEP_SMI || X86_SPEEDSTEP_ICH)
         help
-          Don't perform all checks for a speedstep capable system which would 
-          normally be done. Some ancient or strange systems, though speedstep 
-          capable, don't always indicate that they are speedstep capable. This 
+          Don't perform all checks for a speedstep capable system which would
+          normally be done. Some ancient or strange systems, though speedstep
+          capable, don't always indicate that they are speedstep capable. This
           option lets the probing code bypass some of those checks if the
           parameter "relaxed_check=1" is passed to the module.
 
diff --git a/arch/i386/kernel/cpu/cpufreq/cpufreq-nforce2.c b/arch/i386/kernel/cpu/cpufreq/cpufreq-nforce2.c
index 2b62dee35c6c..f275e0d4aee5 100644
--- a/arch/i386/kernel/cpu/cpufreq/cpufreq-nforce2.c
+++ b/arch/i386/kernel/cpu/cpufreq/cpufreq-nforce2.c
@@ -39,7 +39,7 @@ static struct pci_dev *nforce2_chipset_dev;
 static int fid = 0;
 
 /* min_fsb, max_fsb:
- * minimum and maximum FSB (= FSB at boot time) 
+ * minimum and maximum FSB (= FSB at boot time)
  */
 static int min_fsb = 0;
 static int max_fsb = 0;
@@ -57,10 +57,10 @@ MODULE_PARM_DESC(min_fsb,
 
 #define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, "cpufreq-nforce2", msg)
 
-/*
+/**
  * nforce2_calc_fsb - calculate FSB
  * @pll: PLL value
- * 
+ *
  *   Calculates FSB from PLL value
  */
 static int nforce2_calc_fsb(int pll)
@@ -76,10 +76,10 @@ static int nforce2_calc_fsb(int pll)
         return 0;
 }
 
-/*
+/**
  * nforce2_calc_pll - calculate PLL value
  * @fsb: FSB
- * 
+ *
  *   Calculate PLL value for given FSB
  */
 static int nforce2_calc_pll(unsigned int fsb)
@@ -106,10 +106,10 @@ static int nforce2_calc_pll(unsigned int fsb)
         return NFORCE2_PLL(mul, div);
 }
 
-/*
+/**
  * nforce2_write_pll - write PLL value to chipset
  * @pll: PLL value
- * 
+ *
  *   Writes new FSB PLL value to chipset
  */
 static void nforce2_write_pll(int pll)
@@ -121,15 +121,13 @@ static void nforce2_write_pll(int pll)
         pci_write_config_dword(nforce2_chipset_dev, NFORCE2_PLLADR, temp);
 
         /* Now write the value in all 64 registers */
-        for (temp = 0; temp <= 0x3f; temp++) {
-                pci_write_config_dword(nforce2_chipset_dev, 
-                                       NFORCE2_PLLREG, pll);
-        }
+        for (temp = 0; temp <= 0x3f; temp++)
+                pci_write_config_dword(nforce2_chipset_dev, NFORCE2_PLLREG, pll);
 
         return;
 }
 
-/*
+/**
  * nforce2_fsb_read - Read FSB
  *
  *   Read FSB from chipset
@@ -140,39 +138,32 @@ static unsigned int nforce2_fsb_read(int bootfsb)
         struct pci_dev *nforce2_sub5;
         u32 fsb, temp = 0;
 
-        
         /* Get chipset boot FSB from subdevice 5 (FSB at boot-time) */
         nforce2_sub5 = pci_get_subsys(PCI_VENDOR_ID_NVIDIA,
-                                      0x01EF,
-                                      PCI_ANY_ID,
-                                      PCI_ANY_ID,
-                                      NULL);
-        
+                                                0x01EF,PCI_ANY_ID,PCI_ANY_ID,NULL);
         if (!nforce2_sub5)
                 return 0;
 
         pci_read_config_dword(nforce2_sub5, NFORCE2_BOOTFSB, &fsb);
         fsb /= 1000000;
-        
+
         /* Check if PLL register is already set */
-        pci_read_config_byte(nforce2_chipset_dev, 
-                             NFORCE2_PLLENABLE, (u8 *)&temp);
-        
+        pci_read_config_byte(nforce2_chipset_dev,NFORCE2_PLLENABLE, (u8 *)&temp);
+
         if(bootfsb || !temp)
                 return fsb;
                 
         /* Use PLL register FSB value */
-        pci_read_config_dword(nforce2_chipset_dev, 
-                              NFORCE2_PLLREG, &temp);
+        pci_read_config_dword(nforce2_chipset_dev,NFORCE2_PLLREG, &temp);
         fsb = nforce2_calc_fsb(temp);
 
         return fsb;
 }
 
-/*
+/**
  * nforce2_set_fsb - set new FSB
  * @fsb: New FSB
- * 
+ *
  *   Sets new FSB
  */
 static int nforce2_set_fsb(unsigned int fsb)
@@ -186,7 +177,7 @@ static int nforce2_set_fsb(unsigned int fsb)
                 printk(KERN_ERR "cpufreq: FSB %d is out of range!\n", fsb);
                 return -EINVAL;
         }
-        
+
         tfsb = nforce2_fsb_read(0);
         if (!tfsb) {
                 printk(KERN_ERR "cpufreq: Error while reading the FSB\n");
@@ -194,8 +185,7 @@ static int nforce2_set_fsb(unsigned int fsb)
         }
 
         /* First write? Then set actual value */
-        pci_read_config_byte(nforce2_chipset_dev, 
-                             NFORCE2_PLLENABLE, (u8 *)&temp);
+        pci_read_config_byte(nforce2_chipset_dev,NFORCE2_PLLENABLE, (u8 *)&temp);
         if (!temp) {
                 pll = nforce2_calc_pll(tfsb);
 
@@ -223,7 +213,7 @@ static int nforce2_set_fsb(unsigned int fsb)
                 /* Calculate the PLL reg. value */
                 if ((pll = nforce2_calc_pll(tfsb)) == -1)
                         return -EINVAL;
-                
+
                 nforce2_write_pll(pll);
 #ifdef NFORCE2_DELAY
                 mdelay(NFORCE2_DELAY);
@@ -239,7 +229,7 @@ static int nforce2_set_fsb(unsigned int fsb)
 /**
  * nforce2_get - get the CPU frequency
  * @cpu: CPU number
- * 
+ *
  * Returns the CPU frequency
  */
 static unsigned int nforce2_get(unsigned int cpu)
@@ -354,10 +344,10 @@ static int nforce2_cpu_init(struct cpufreq_policy *policy)
 
         printk(KERN_INFO "cpufreq: FSB currently at %i MHz, FID %d.%d\n", fsb,
                fid / 10, fid % 10);
-        
+
         /* Set maximum FSB to FSB at boot time */
         max_fsb = nforce2_fsb_read(1);
-        
+
         if(!max_fsb)
                 return -EIO;
 
@@ -398,17 +388,15 @@ static struct cpufreq_driver nforce2_driver = {
  * nforce2_detect_chipset - detect the Southbridge which contains FSB PLL logic
  *
  * Detects nForce2 A2 and C1 stepping
- * 
+ *
  */
 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);
+                                        PCI_DEVICE_ID_NVIDIA_NFORCE2,
+                                        PCI_ANY_ID, PCI_ANY_ID, NULL);
 
         if (nforce2_chipset_dev == NULL)
                 return -ENODEV;
diff --git a/arch/i386/kernel/cpu/cpufreq/elanfreq.c b/arch/i386/kernel/cpu/cpufreq/elanfreq.c
index 3f7caa4ae6d6..f317276afa7a 100644
--- a/arch/i386/kernel/cpu/cpufreq/elanfreq.c
+++ b/arch/i386/kernel/cpu/cpufreq/elanfreq.c
@@ -1,16 +1,16 @@
 /*
- *      elanfreq:       cpufreq driver for the AMD ELAN family
+ *      elanfreq:       cpufreq driver for the AMD ELAN family
  *
  *      (c) Copyright 2002 Robert Schwebel <r.schwebel@pengutronix.de>
  *
- *      Parts of this code are (c) Sven Geggus <sven@geggus.net> 
+ *      Parts of this code are (c) Sven Geggus <sven@geggus.net>
  *
- *      All Rights Reserved. 
+ *      All Rights Reserved.
  *
  *      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. 
+ *      2 of the License, or (at your option) any later version.
  *
  *      2002-02-13: - initial revision for 2.4.18-pre9 by Robert Schwebel
  *
@@ -28,7 +28,7 @@
 #include <asm/timex.h>
 #include <asm/io.h>
 
-#define REG_CSCIR 0x22          /* Chip Setup and Control Index Register    */
+#define REG_CSCIR 0x22          /* Chip Setup and Control Index Register    */
 #define REG_CSCDR 0x23          /* Chip Setup and Control Data  Register    */
 
 /* Module parameter */
@@ -41,7 +41,7 @@ struct s_elan_multiplier {
 };
 
 /*
- * It is important that the frequencies 
+ * It is important that the frequencies
  * are listed in ascending order here!
  */
 struct s_elan_multiplier elan_multiplier[] = {
@@ -72,78 +72,79 @@ static struct cpufreq_frequency_table elanfreq_table[] = {
  *      elanfreq_get_cpu_frequency: determine current cpu speed
  *
  *      Finds out at which frequency the CPU of the Elan SOC runs
- *      at the moment. Frequencies from 1 to 33 MHz are generated 
+ *      at the moment. Frequencies from 1 to 33 MHz are generated
  *      the normal way, 66 and 99 MHz are called "Hyperspeed Mode"
- *      and have the rest of the chip running with 33 MHz. 
+ *      and have the rest of the chip running with 33 MHz.
  */
 
 static unsigned int elanfreq_get_cpu_frequency(unsigned int cpu)
 {
-        u8 clockspeed_reg;    /* Clock Speed Register */
-        
+        u8 clockspeed_reg;    /* Clock Speed Register */
+
         local_irq_disable();
-        outb_p(0x80,REG_CSCIR);
-        clockspeed_reg = inb_p(REG_CSCDR);
+        outb_p(0x80,REG_CSCIR);
+        clockspeed_reg = inb_p(REG_CSCDR);
         local_irq_enable();
 
-        if ((clockspeed_reg & 0xE0) == 0xE0) { return 0; }
+        if ((clockspeed_reg & 0xE0) == 0xE0)
+                return 0;
 
-        /* Are we in CPU clock multiplied mode (66/99 MHz)? */
-        if ((clockspeed_reg & 0xE0) == 0xC0) {
-                if ((clockspeed_reg & 0x01) == 0) {
+        /* Are we in CPU clock multiplied mode (66/99 MHz)? */
+        if ((clockspeed_reg & 0xE0) == 0xC0) {
+                if ((clockspeed_reg & 0x01) == 0)
                         return 66000;
-                } else {
-                        return 99000;             
-                }
-        }
+                else
+                        return 99000;
+        }
 
         /* 33 MHz is not 32 MHz... */
         if ((clockspeed_reg & 0xE0)==0xA0)
                 return 33000;
 
-        return ((1<<((clockspeed_reg & 0xE0) >> 5)) * 1000);
+        return ((1<<((clockspeed_reg & 0xE0) >> 5)) * 1000);
 }
 
 
 /**
- *      elanfreq_set_cpu_frequency: Change the CPU core frequency
- *      @cpu: cpu number
+ *      elanfreq_set_cpu_frequency: Change the CPU core frequency
+ *      @cpu: cpu number
  *      @freq: frequency in kHz
  *
- *      This function takes a frequency value and changes the CPU frequency 
+ *      This function takes a frequency value and changes the CPU frequency
  *      according to this. Note that the frequency has to be checked by
  *      elanfreq_validatespeed() for correctness!
- *      
- *      There is no return value. 
+ *
+ *      There is no return value.
  */
 
-static void elanfreq_set_cpu_state (unsigned int state) {
-
+static void elanfreq_set_cpu_state (unsigned int state)
+{
         struct cpufreq_freqs    freqs;
 
         freqs.old = elanfreq_get_cpu_frequency(0);
         freqs.new = elan_multiplier[state].clock;
         freqs.cpu = 0; /* elanfreq.c is UP only driver */
-        
+
         cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
 
-        printk(KERN_INFO "elanfreq: attempting to set frequency to %i kHz\n",elan_multiplier[state].clock);
+        printk(KERN_INFO "elanfreq: attempting to set frequency to %i kHz\n",
+                        elan_multiplier[state].clock);
 
 
-        /* 
-         * Access to the Elan's internal registers is indexed via    
-         * 0x22: Chip Setup & Control Register Index Register (CSCI) 
-         * 0x23: Chip Setup & Control Register Data  Register (CSCD) 
+        /*
+         * Access to the Elan's internal registers is indexed via
+         * 0x22: Chip Setup & Control Register Index Register (CSCI)
+         * 0x23: Chip Setup & Control Register Data  Register (CSCD)
          *
          */
 
-        /* 
-         * 0x40 is the Power Management Unit's Force Mode Register. 
+        /*
+         * 0x40 is the Power Management Unit's Force Mode Register.
          * Bit 6 enables Hyperspeed Mode (66/100 MHz core frequency)
          */
 
         local_irq_disable();
-        outb_p(0x40,REG_CSCIR);         /* Disable hyperspeed mode          */
+        outb_p(0x40,REG_CSCIR);         /* Disable hyperspeed mode */
         outb_p(0x00,REG_CSCDR);
         local_irq_enable();             /* wait till internal pipelines and */
         udelay(1000);                   /* buffers have cleaned up          */
@@ -166,10 +167,10 @@ static void elanfreq_set_cpu_state (unsigned int state) {
 
 /**
  *      elanfreq_validatespeed: test if frequency range is valid
- *      @policy: the policy to validate
+ *      @policy: the policy to validate
  *
- *      This function checks if a given frequency range in kHz is valid 
- *      for the hardware supported by the driver. 
+ *      This function checks if a given frequency range in kHz is valid
+ *      for the hardware supported by the driver.
  */
 
 static int elanfreq_verify (struct cpufreq_policy *policy)
@@ -177,11 +178,11 @@ static int elanfreq_verify (struct cpufreq_policy *policy)
         return cpufreq_frequency_table_verify(policy, &elanfreq_table[0]);
 }
 
-static int elanfreq_target (struct cpufreq_policy *policy, 
-                            unsigned int target_freq, 
+static int elanfreq_target (struct cpufreq_policy *policy,
+                            unsigned int target_freq,
                             unsigned int relation)
 {
-        unsigned int    newstate = 0;
+        unsigned int newstate = 0;
 
         if (cpufreq_frequency_table_target(policy, &elanfreq_table[0], target_freq, relation, &newstate))
                 return -EINVAL;
@@ -212,7 +213,7 @@ static int elanfreq_cpu_init(struct cpufreq_policy *policy)
                 max_freq = elanfreq_get_cpu_frequency(0);
 
         /* table init */
-        for (i=0; (elanfreq_table[i].frequency != CPUFREQ_TABLE_END); i++) {
+        for (i=0; (elanfreq_table[i].frequency != CPUFREQ_TABLE_END); i++) {
                 if (elanfreq_table[i].frequency > max_freq)
                         elanfreq_table[i].frequency = CPUFREQ_ENTRY_INVALID;
         }
@@ -226,8 +227,7 @@ static int elanfreq_cpu_init(struct cpufreq_policy *policy)
         if (result)
                 return (result);
 
-        cpufreq_frequency_table_get_attr(elanfreq_table, policy->cpu);
-
+        cpufreq_frequency_table_get_attr(elanfreq_table, policy->cpu);
         return 0;
 }
 
@@ -268,9 +268,9 @@ static struct freq_attr* elanfreq_attr[] = {
 
 
 static struct cpufreq_driver elanfreq_driver = {
-        .get            = elanfreq_get_cpu_frequency,
-        .verify         = elanfreq_verify,
-        .target         = elanfreq_target,
+        .get            = elanfreq_get_cpu_frequency,
+        .verify         = elanfreq_verify,
+        .target         = elanfreq_target,
         .init           = elanfreq_cpu_init,
         .exit           = elanfreq_cpu_exit,
         .name           = "elanfreq",
@@ -279,23 +279,21 @@ static struct cpufreq_driver elanfreq_driver = {
 };
 
 
-static int __init elanfreq_init(void) 
-{       
+static int __init elanfreq_init(void)
+{
         struct cpuinfo_x86 *c = cpu_data;
 
         /* Test if we have the right hardware */
         if ((c->x86_vendor != X86_VENDOR_AMD) ||
-                (c->x86 != 4) || (c->x86_model!=10))
-        {
+                (c->x86 != 4) || (c->x86_model!=10)) {
                 printk(KERN_INFO "elanfreq: error: no Elan processor found!\n");
                 return -ENODEV;
         }
-        
         return cpufreq_register_driver(&elanfreq_driver);
 }
 
 
-static void __exit elanfreq_exit(void) 
+static void __exit elanfreq_exit(void)
 {
         cpufreq_unregister_driver(&elanfreq_driver);
 }
@@ -309,4 +307,3 @@ MODULE_DESCRIPTION("cpufreq driver for AMD's Elan CPUs");
 
 module_init(elanfreq_init);
 module_exit(elanfreq_exit);
-
diff --git a/arch/i386/kernel/cpu/cpufreq/gx-suspmod.c b/arch/i386/kernel/cpu/cpufreq/gx-suspmod.c
index e86ea486c311..92afa3bc84f1 100644
--- a/arch/i386/kernel/cpu/cpufreq/gx-suspmod.c
+++ b/arch/i386/kernel/cpu/cpufreq/gx-suspmod.c
@@ -6,12 +6,12 @@
  *
  *      This program is free software; you can redistribute it and/or
  *      modify it under the terms of the GNU General Public License
- *      version 2 as published by the Free Software Foundation 
+ *      version 2 as published by the Free Software Foundation
  *
  *      The author(s) of this software shall not be held liable for damages
  *      of any nature resulting due to the use of this software. This
  *      software is provided AS-IS with no warranties.
- *      
+ *
  * Theoritical note:
  *
  *      (see Geode(tm) CS5530 manual (rev.4.1) page.56)
@@ -21,18 +21,18 @@
  *
  *      Suspend Modulation works by asserting and de-asserting the SUSP# pin
  *      to CPU(GX1/GXLV) for configurable durations. When asserting SUSP#
- *      the CPU enters an idle state. GX1 stops its core clock when SUSP# is 
+ *      the CPU enters an idle state. GX1 stops its core clock when SUSP# is
  *      asserted then power consumption is reduced.
  *
- *      Suspend Modulation's OFF/ON duration are configurable 
+ *      Suspend Modulation's OFF/ON duration are configurable
  *      with 'Suspend Modulation OFF Count Register'
  *      and 'Suspend Modulation ON Count Register'.
- *      These registers are 8bit counters that represent the number of 
+ *      These registers are 8bit counters that represent the number of
  *      32us intervals which the SUSP# pin is asserted(ON)/de-asserted(OFF)
  *      to the processor.
  *
- *      These counters define a ratio which is the effective frequency 
- *      of operation of the system.
+ *      These counters define a ratio which is the effective frequency
+ *      of operation of the system.
  *
  *                             OFF Count
  *      F_eff = Fgx * ----------------------
@@ -40,24 +40,24 @@
  *
  *      0 <= On Count, Off Count <= 255
  *
- *      From these limits, we can get register values 
+ *      From these limits, we can get register values
  *
  *      off_duration + on_duration <= MAX_DURATION
  *      on_duration = off_duration * (stock_freq - freq) / freq
  *
- *      off_duration  =  (freq * DURATION) / stock_freq 
- *      on_duration = DURATION - off_duration 
+ *      off_duration  =  (freq * DURATION) / stock_freq
+ *      on_duration = DURATION - off_duration
  *
  *
  *---------------------------------------------------------------------------
  *
  * ChangeLog:
- *      Dec. 12, 2003   Hiroshi Miura <miura@da-cha.org>
- *              - fix on/off register mistake
- *              - fix cpu_khz calc when it stops cpu modulation.
+ *      Dec. 12, 2003   Hiroshi Miura <miura@da-cha.org>
+ *              - fix on/off register mistake
+ *              - fix cpu_khz calc when it stops cpu modulation.
  *
- *      Dec. 11, 2002   Hiroshi Miura <miura@da-cha.org>
- *              - rewrite for Cyrix MediaGX Cx5510/5520 and 
+ *      Dec. 11, 2002   Hiroshi Miura <miura@da-cha.org>
+ *              - rewrite for Cyrix MediaGX Cx5510/5520 and
  *                NatSemi Geode Cs5530(A).
  *
  *      Jul. ??, 2002  Zwane Mwaikambo <zwane@commfireservices.com>
@@ -74,40 +74,40 @@
  ************************************************************************/
 
 #include <linux/kernel.h>
-#include <linux/module.h> 
+#include <linux/module.h>
 #include <linux/init.h>
 #include <linux/smp.h>
 #include <linux/cpufreq.h>
 #include <linux/pci.h>
-#include <asm/processor.h> 
+#include <asm/processor.h>
 #include <asm/errno.h>
 
 /* PCI config registers, all at F0 */
-#define PCI_PMER1              0x80    /* power management enable register 1 */
-#define PCI_PMER2              0x81    /* power management enable register 2 */
-#define PCI_PMER3              0x82    /* power management enable register 3 */
-#define PCI_IRQTC              0x8c    /* irq speedup timer counter register:typical 2 to 4ms */
-#define PCI_VIDTC              0x8d    /* video speedup timer counter register: typical 50 to 100ms */
-#define PCI_MODOFF             0x94    /* suspend modulation OFF counter register, 1 = 32us */
-#define PCI_MODON              0x95    /* suspend modulation ON counter register */
-#define PCI_SUSCFG             0x96    /* suspend configuration register */
+#define PCI_PMER1       0x80    /* power management enable register 1 */
+#define PCI_PMER2       0x81    /* power management enable register 2 */
+#define PCI_PMER3       0x82    /* power management enable register 3 */
+#define PCI_IRQTC       0x8c    /* irq speedup timer counter register:typical 2 to 4ms */
+#define PCI_VIDTC       0x8d    /* video speedup timer counter register: typical 50 to 100ms */
+#define PCI_MODOFF      0x94    /* suspend modulation OFF counter register, 1 = 32us */
+#define PCI_MODON       0x95    /* suspend modulation ON counter register */
+#define PCI_SUSCFG      0x96    /* suspend configuration register */
 
 /* PMER1 bits */
-#define GPM                    (1<<0)  /* global power management */
-#define GIT                    (1<<1)  /* globally enable PM device idle timers */
-#define GTR                    (1<<2)  /* globally enable IO traps */
-#define IRQ_SPDUP              (1<<3)  /* disable clock throttle during interrupt handling */
-#define VID_SPDUP              (1<<4)  /* disable clock throttle during vga video handling */
+#define GPM             (1<<0)  /* global power management */
+#define GIT             (1<<1)  /* globally enable PM device idle timers */
+#define GTR             (1<<2)  /* globally enable IO traps */
+#define IRQ_SPDUP       (1<<3)  /* disable clock throttle during interrupt handling */
+#define VID_SPDUP       (1<<4)  /* disable clock throttle during vga video handling */
 
 /* SUSCFG bits */
-#define SUSMOD                 (1<<0)  /* enable/disable suspend modulation */
-/* the belows support only with cs5530 (after rev.1.2)/cs5530A */ 
-#define SMISPDUP               (1<<1)  /* select how SMI re-enable suspend modulation: */
-                                       /* IRQTC timer or read SMI speedup disable reg.(F1BAR[08-09h]) */
-#define SUSCFG                 (1<<2)  /* enable powering down a GXLV processor. "Special 3Volt Suspend" mode */
-/* the belows support only with cs5530A */ 
-#define PWRSVE_ISA             (1<<3)  /* stop ISA clock  */
-#define PWRSVE                 (1<<4)  /* active idle */
+#define SUSMOD          (1<<0)  /* enable/disable suspend modulation */
+/* the belows support only with cs5530 (after rev.1.2)/cs5530A */
+#define SMISPDUP        (1<<1)  /* select how SMI re-enable suspend modulation: */
+                                /* IRQTC timer or read SMI speedup disable reg.(F1BAR[08-09h]) */
+#define SUSCFG          (1<<2)  /* enable powering down a GXLV processor. "Special 3Volt Suspend" mode */
+/* the belows support only with cs5530A */
+#define PWRSVE_ISA      (1<<3)  /* stop ISA clock  */
+#define PWRSVE          (1<<4)  /* active idle */
 
 struct gxfreq_params {
         u8 on_duration;
@@ -128,7 +128,7 @@ module_param (pci_busclk, int, 0444);
 
 /* maximum duration for which the cpu may be suspended
  * (32us * MAX_DURATION). If no parameter is given, this defaults
- * to 255. 
+ * to 255.
  * Note that this leads to a maximum of 8 ms(!) where the CPU clock
  * is suspended -- processing power is just 0.39% of what it used to be,
  * though. 781.25 kHz(!) for a 200 MHz processor -- wow. */
@@ -144,17 +144,17 @@ module_param (max_duration, int, 0444);
 #define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, "gx-suspmod", msg)
 
 /**
- *      we can detect a core multipiler from dir0_lsb 
- *      from GX1 datasheet p.56, 
- *         MULT[3:0]:
- *         0000 = SYSCLK multiplied by 4 (test only)
- *         0001 = SYSCLK multiplied by 10
- *         0010 = SYSCLK multiplied by 4
- *         0011 = SYSCLK multiplied by 6
- *         0100 = SYSCLK multiplied by 9
- *         0101 = SYSCLK multiplied by 5
- *         0110 = SYSCLK multiplied by 7
- *         0111 = SYSCLK multiplied by 8
+ * we can detect a core multipiler from dir0_lsb
+ * from GX1 datasheet p.56,
+ *      MULT[3:0]:
+ *      0000 = SYSCLK multiplied by 4 (test only)
+ *      0001 = SYSCLK multiplied by 10
+ *      0010 = SYSCLK multiplied by 4
+ *      0011 = SYSCLK multiplied by 6
+ *      0100 = SYSCLK multiplied by 9
+ *      0101 = SYSCLK multiplied by 5
+ *      0110 = SYSCLK multiplied by 7
+ *      0111 = SYSCLK multiplied by 8
  *              of 33.3MHz
  **/
 static int gx_freq_mult[16] = {
@@ -164,17 +164,17 @@ static int gx_freq_mult[16] = {
 
 
 /****************************************************************
- *      Low Level chipset interface                             *
+ *      Low Level chipset interface                             *
  ****************************************************************/
 static struct pci_device_id gx_chipset_tbl[] __initdata = {
-        { PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5530_LEGACY, PCI_ANY_ID, PCI_ANY_ID },
-        { PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5520, PCI_ANY_ID, PCI_ANY_ID },
-        { PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5510, PCI_ANY_ID, PCI_ANY_ID },
-        { 0, },
+        { PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5530_LEGACY, PCI_ANY_ID, PCI_ANY_ID },
+        { PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5520, PCI_ANY_ID, PCI_ANY_ID },
+        { PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5510, PCI_ANY_ID, PCI_ANY_ID },
+        { 0, },
 };
 
 /**
- *     gx_detect_chipset:
+ * gx_detect_chipset:
  *
  **/
 static __init struct pci_dev *gx_detect_chipset(void)
@@ -182,17 +182,16 @@ static __init struct pci_dev *gx_detect_chipset(void)
         struct pci_dev *gx_pci = NULL;
 
         /* check if CPU is a MediaGX or a Geode. */
-        if ((current_cpu_data.x86_vendor != X86_VENDOR_NSC) && 
+        if ((current_cpu_data.x86_vendor != X86_VENDOR_NSC) &&
             (current_cpu_data.x86_vendor != X86_VENDOR_CYRIX)) {
                 dprintk("error: no MediaGX/Geode processor found!\n");
-                return NULL;            
+                return NULL;
         }
 
         /* detect which companion chip is used */
         while ((gx_pci = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, gx_pci)) != NULL) {
-                if ((pci_match_id(gx_chipset_tbl, gx_pci)) != NULL) {
+                if ((pci_match_id(gx_chipset_tbl, gx_pci)) != NULL)
                         return gx_pci;
-                }
         }
 
         dprintk("error: no supported chipset found!\n");
@@ -200,24 +199,24 @@ static __init struct pci_dev *gx_detect_chipset(void)
 }
 
 /**
- *      gx_get_cpuspeed:
+ * gx_get_cpuspeed:
  *
  * Finds out at which efficient frequency the Cyrix MediaGX/NatSemi Geode CPU runs.
  */
 static unsigned int gx_get_cpuspeed(unsigned int cpu)
 {
-        if ((gx_params->pci_suscfg & SUSMOD) == 0) 
+        if ((gx_params->pci_suscfg & SUSMOD) == 0)
                 return stock_freq;
 
-        return (stock_freq * gx_params->off_duration) 
+        return (stock_freq * gx_params->off_duration)
                 / (gx_params->on_duration + gx_params->off_duration);
 }
 
 /**
  *      gx_validate_speed:
  *      determine current cpu speed
- *       
-**/
+ *
+ **/
 
 static unsigned int gx_validate_speed(unsigned int khz, u8 *on_duration, u8 *off_duration)
 {
@@ -230,7 +229,7 @@ static unsigned int gx_validate_speed(unsigned int khz, u8 *on_duration, u8 *off
         *on_duration=0;
 
         for (i=max_duration; i>0; i--) {
-                tmp_off = ((khz * i) / stock_freq) & 0xff; 
+                tmp_off = ((khz * i) / stock_freq) & 0xff;
                 tmp_on = i - tmp_off;
                 tmp_freq = (stock_freq * tmp_off) / i;
                 /* if this relation is closer to khz, use this. If it's equal,
@@ -247,18 +246,17 @@ static unsigned int gx_validate_speed(unsigned int khz, u8 *on_duration, u8 *off
 
 
 /**
- *      gx_set_cpuspeed:
- *              set cpu speed in khz.
+ * gx_set_cpuspeed:
+ * set cpu speed in khz.
  **/
 
 static void gx_set_cpuspeed(unsigned int khz)
 {
-        u8 suscfg, pmer1;
+        u8 suscfg, pmer1;
         unsigned int new_khz;
         unsigned long flags;
         struct cpufreq_freqs freqs;
 
-
         freqs.cpu = 0;
         freqs.old = gx_get_cpuspeed(0);
 
@@ -303,18 +301,18 @@ static void gx_set_cpuspeed(unsigned int khz)
         pci_write_config_byte(gx_params->cs55x0, PCI_MODOFF, gx_params->off_duration);
         pci_write_config_byte(gx_params->cs55x0, PCI_MODON, gx_params->on_duration);
 
-        pci_write_config_byte(gx_params->cs55x0, PCI_SUSCFG, suscfg);
-        pci_read_config_byte(gx_params->cs55x0, PCI_SUSCFG, &suscfg);
+        pci_write_config_byte(gx_params->cs55x0, PCI_SUSCFG, suscfg);
+        pci_read_config_byte(gx_params->cs55x0, PCI_SUSCFG, &suscfg);
 
-        local_irq_restore(flags);
+        local_irq_restore(flags);
 
         gx_params->pci_suscfg = suscfg;
 
         cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
 
-        dprintk("suspend modulation w/ duration of ON:%d us, OFF:%d us\n",
-                gx_params->on_duration * 32, gx_params->off_duration * 32);
-        dprintk("suspend modulation w/ clock speed: %d kHz.\n", freqs.new); 
+        dprintk("suspend modulation w/ duration of ON:%d us, OFF:%d us\n",
+                gx_params->on_duration * 32, gx_params->off_duration * 32);
+        dprintk("suspend modulation w/ clock speed: %d kHz.\n", freqs.new);
 }
 
 /****************************************************************
@@ -322,10 +320,10 @@ static void gx_set_cpuspeed(unsigned int khz)
  ****************************************************************/
 
 /*
- *      cpufreq_gx_verify: test if frequency range is valid 
+ *      cpufreq_gx_verify: test if frequency range is valid
  *
- *      This function checks if a given frequency range in kHz is valid 
- *      for the hardware supported by the driver. 
+ *      This function checks if a given frequency range in kHz is valid
+ *      for the hardware supported by the driver.
  */
 
 static int cpufreq_gx_verify(struct cpufreq_policy *policy)
@@ -333,8 +331,8 @@ static int cpufreq_gx_verify(struct cpufreq_policy *policy)
         unsigned int tmp_freq = 0;
         u8 tmp1, tmp2;
 
-        if (!stock_freq || !policy)
-                return -EINVAL;
+        if (!stock_freq || !policy)
+                return -EINVAL;
 
         policy->cpu = 0;
         cpufreq_verify_within_limits(policy, (stock_freq / max_duration), stock_freq);
@@ -342,14 +340,14 @@ static int cpufreq_gx_verify(struct cpufreq_policy *policy)
         /* it needs to be assured that at least one supported frequency is
          * within policy->min and policy->max. If it is not, policy->max
          * needs to be increased until one freuqency is supported.
-         * policy->min may not be decreased, though. This way we guarantee a 
+         * policy->min may not be decreased, though. This way we guarantee a
          * specific processing capacity.
          */
         tmp_freq = gx_validate_speed(policy->min, &tmp1, &tmp2);
-        if (tmp_freq < policy->min) 
+        if (tmp_freq < policy->min)
                 tmp_freq += stock_freq / max_duration;
         policy->min = tmp_freq;
-        if (policy->min > policy->max) 
+        if (policy->min > policy->max)
                 policy->max = tmp_freq;
         tmp_freq = gx_validate_speed(policy->max, &tmp1, &tmp2);
         if (tmp_freq > policy->max)
@@ -358,12 +356,12 @@ static int cpufreq_gx_verify(struct cpufreq_policy *policy)
         if (policy->max < policy->min)
                 policy->max = policy->min;
         cpufreq_verify_within_limits(policy, (stock_freq / max_duration), stock_freq);
-        
+
         return 0;
 }
 
 /*
- *      cpufreq_gx_target:  
+ *      cpufreq_gx_target:
  *
  */
 static int cpufreq_gx_target(struct cpufreq_policy *policy,
@@ -373,8 +371,8 @@ static int cpufreq_gx_target(struct cpufreq_policy *policy,
         u8 tmp1, tmp2;
         unsigned int tmp_freq;
 
-        if (!stock_freq || !policy)
-                return -EINVAL;
+        if (!stock_freq || !policy)
+                return -EINVAL;
 
         policy->cpu = 0;
 
@@ -431,7 +429,7 @@ static int cpufreq_gx_cpu_init(struct cpufreq_policy *policy)
         return 0;
 }
 
-/* 
+/*
  * cpufreq_gx_init:
  *   MediaGX/Geode GX initialize cpufreq driver
  */
@@ -452,7 +450,7 @@ static int __init cpufreq_gx_init(void)
         u32 class_rev;
 
         /* Test if we have the right hardware */
-        if ((gx_pci = gx_detect_chipset()) == NULL) 
+        if ((gx_pci = gx_detect_chipset()) == NULL)
                 return -ENODEV;
 
         /* check whether module parameters are sane */
@@ -461,10 +459,9 @@ static int __init cpufreq_gx_init(void)
 
         dprintk("geode suspend modulation available.\n");
 
-        params = kmalloc(sizeof(struct gxfreq_params), GFP_KERNEL);
+        params = kzalloc(sizeof(struct gxfreq_params), GFP_KERNEL);
         if (params == NULL)
                 return -ENOMEM;
-        memset(params, 0, sizeof(struct gxfreq_params));
 
         params->cs55x0 = gx_pci;
         gx_params = params;
@@ -478,7 +475,7 @@ static int __init cpufreq_gx_init(void)
         pci_read_config_dword(params->cs55x0, PCI_CLASS_REVISION, &class_rev);
         params->pci_rev = class_rev && 0xff;
 
-        if ((ret = cpufreq_register_driver(&gx_suspmod_driver))) { 
+        if ((ret = cpufreq_register_driver(&gx_suspmod_driver))) {
                 kfree(params);
                 return ret;                   /* register error! */
         }
diff --git a/arch/i386/kernel/cpu/cpufreq/longhaul.h b/arch/i386/kernel/cpu/cpufreq/longhaul.h
index 2a495c162ec7..d3a95d77ee85 100644
--- a/arch/i386/kernel/cpu/cpufreq/longhaul.h
+++ b/arch/i386/kernel/cpu/cpufreq/longhaul.h
@@ -234,7 +234,7 @@ static int __initdata ezrat_eblcr[32] = {
 
 /*
  * VIA C3 Nehemiah */
- 
+
 static int __initdata nehemiah_a_clock_ratio[32] = {
         100, /* 0000 -> 10.0x */
         160, /* 0001 -> 16.0x */
@@ -446,7 +446,7 @@ static int __initdata nehemiah_c_eblcr[32] = {
           /* end of table  */
 };
 
-/* 
+/*
  * Voltage scales. Div/Mod by 1000 to get actual voltage.
  * Which scale to use depends on the VRM type in use.
  */
diff --git a/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c b/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c
index cc73a7ae34bc..ab6504efd801 100644
--- a/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c
+++ b/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c
@@ -14,7 +14,7 @@
  *      The author(s) of this software shall not be held liable for damages
  *      of any nature resulting due to the use of this software. This
  *      software is provided AS-IS with no warranties.
- *      
+ *
  *      Date            Errata                  Description
  *      20020525        N44, O17        12.5% or 25% DC causes lockup
  *
@@ -22,7 +22,7 @@
 
 #include <linux/config.h>
 #include <linux/kernel.h>
-#include <linux/module.h> 
+#include <linux/module.h>
 #include <linux/init.h>
 #include <linux/smp.h>
 #include <linux/cpufreq.h>
@@ -30,7 +30,7 @@
 #include <linux/cpumask.h>
 #include <linux/sched.h>        /* current / set_cpus_allowed() */
 
-#include <asm/processor.h> 
+#include <asm/processor.h>
 #include <asm/msr.h>
 #include <asm/timex.h>
 
@@ -79,7 +79,7 @@ static int cpufreq_p4_setdc(unsigned int cpu, unsigned int newstate)
         } else {
                 dprintk("CPU#%d setting duty cycle to %d%%\n",
                         cpu, ((125 * newstate) / 10));
-                /* bits 63 - 5  : reserved 
+                /* bits 63 - 5  : reserved
                  * bit  4       : enable/disable
                  * bits 3-1     : duty cycle
                  * bit  0       : reserved
@@ -132,7 +132,7 @@ static int cpufreq_p4_target(struct cpufreq_policy *policy,
         }
 
         /* run on each logical CPU, see section 13.15.3 of IA32 Intel Architecture Software
-         * Developer's Manual, Volume 3 
+         * Developer's Manual, Volume 3
          */
         cpus_allowed = current->cpus_allowed;
 
@@ -206,7 +206,7 @@ static unsigned int cpufreq_p4_get_frequency(struct cpuinfo_x86 *c)
         return speedstep_get_processor_frequency(SPEEDSTEP_PROCESSOR_P4D);
 }
 
- 
+
 
 static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy)
 {
@@ -234,7 +234,7 @@ static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy)
                 dprintk("has errata -- disabling frequencies lower than 2ghz\n");
                 break;
         }
-        
+
         /* get max frequency */
         stock_freq = cpufreq_p4_get_frequency(c);
         if (!stock_freq)
@@ -244,13 +244,13 @@ static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy)
         for (i=1; (p4clockmod_table[i].frequency != CPUFREQ_TABLE_END); i++) {
                 if ((i<2) && (has_N44_O17_errata[policy->cpu]))
                         p4clockmod_table[i].frequency = CPUFREQ_ENTRY_INVALID;
-                else if (has_N60_errata[policy->cpu] && p4clockmod_table[i].frequency < 2000000)
+                else if (has_N60_errata[policy->cpu] && ((stock_freq * i)/8) < 2000000)
                         p4clockmod_table[i].frequency = CPUFREQ_ENTRY_INVALID;
                 else
                         p4clockmod_table[i].frequency = (stock_freq * i)/8;
         }
         cpufreq_frequency_table_get_attr(p4clockmod_table, policy->cpu);
-        
+
         /* cpuinfo and default policy values */
         policy->governor = CPUFREQ_DEFAULT_GOVERNOR;
         policy->cpuinfo.transition_latency = 1000000; /* assumed */
@@ -262,7 +262,7 @@ static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy)
 
 static int cpufreq_p4_cpu_exit(struct cpufreq_policy *policy)
 {
-        cpufreq_frequency_table_put_attr(policy->cpu);    
+        cpufreq_frequency_table_put_attr(policy->cpu);
         return 0;
 }
 
@@ -298,7 +298,7 @@ static struct freq_attr* p4clockmod_attr[] = {
 };
 
 static struct cpufreq_driver p4clockmod_driver = {
-        .verify         = cpufreq_p4_verify,
+        .verify         = cpufreq_p4_verify,
         .target         = cpufreq_p4_target,
         .init           = cpufreq_p4_cpu_init,
         .exit           = cpufreq_p4_cpu_exit,
@@ -310,12 +310,12 @@ static struct cpufreq_driver p4clockmod_driver = {
 
 
 static int __init cpufreq_p4_init(void)
-{       
+{
         struct cpuinfo_x86 *c = cpu_data;
         int ret;
 
         /*
-         * THERM_CONTROL is architectural for IA32 now, so 
+         * THERM_CONTROL is architectural for IA32 now, so
          * we can rely on the capability checks
          */
         if (c->x86_vendor != X86_VENDOR_INTEL)
diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k6.c b/arch/i386/kernel/cpu/cpufreq/powernow-k6.c
index 222f8cfe3c57..f89524051e4a 100644
--- a/arch/i386/kernel/cpu/cpufreq/powernow-k6.c
+++ b/arch/i386/kernel/cpu/cpufreq/powernow-k6.c
@@ -8,7 +8,7 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/module.h> 
+#include <linux/module.h>
 #include <linux/init.h>
 #include <linux/cpufreq.h>
 #include <linux/ioport.h>
@@ -50,7 +50,7 @@ static int powernow_k6_get_cpu_multiplier(void)
 {
         u64             invalue = 0;
         u32             msrval;
-        
+
         msrval = POWERNOW_IOPORT + 0x1;
         wrmsr(MSR_K6_EPMR, msrval, 0); /* enable the PowerNow port */
         invalue=inl(POWERNOW_IOPORT + 0x8);
@@ -81,7 +81,7 @@ static void powernow_k6_set_state (unsigned int best_i)
         freqs.old = busfreq * powernow_k6_get_cpu_multiplier();
         freqs.new = busfreq * clock_ratio[best_i].index;
         freqs.cpu = 0; /* powernow-k6.c is UP only driver */
-        
+
         cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
 
         /* we now need to transform best_i to the BVC format, see AMD#23446 */
@@ -152,7 +152,7 @@ static int powernow_k6_cpu_init(struct cpufreq_policy *policy)
         busfreq = cpu_khz / max_multiplier;
 
         /* table init */
-        for (i=0; (clock_ratio[i].frequency != CPUFREQ_TABLE_END); i++) {
+        for (i=0; (clock_ratio[i].frequency != CPUFREQ_TABLE_END); i++) {
                 if (clock_ratio[i].index > max_multiplier)
                         clock_ratio[i].frequency = CPUFREQ_ENTRY_INVALID;
                 else
@@ -182,7 +182,7 @@ static int powernow_k6_cpu_exit(struct cpufreq_policy *policy)
                         powernow_k6_set_state(i);
         }
         cpufreq_frequency_table_put_attr(policy->cpu);
-        return 0;
+        return 0;
 }
 
 static unsigned int powernow_k6_get(unsigned int cpu)
@@ -196,8 +196,8 @@ static struct freq_attr* powernow_k6_attr[] = {
 };
 
 static struct cpufreq_driver powernow_k6_driver = {
-        .verify         = powernow_k6_verify,
-        .target         = powernow_k6_target,
+        .verify         = powernow_k6_verify,
+        .target         = powernow_k6_target,
         .init           = powernow_k6_cpu_init,
         .exit           = powernow_k6_cpu_exit,
         .get            = powernow_k6_get,
@@ -215,7 +215,7 @@ static struct cpufreq_driver powernow_k6_driver = {
  * on success.
  */
 static int __init powernow_k6_init(void)
-{       
+{
         struct cpuinfo_x86      *c = cpu_data;
 
         if ((c->x86_vendor != X86_VENDOR_AMD) || (c->x86 != 5) ||
diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k7.c b/arch/i386/kernel/cpu/cpufreq/powernow-k7.c
index edcd626001da..2bf4237cb94e 100644
--- a/arch/i386/kernel/cpu/cpufreq/powernow-k7.c
+++ b/arch/i386/kernel/cpu/cpufreq/powernow-k7.c
@@ -199,8 +199,8 @@ static int get_ranges (unsigned char *pst)
                 powernow_table[j].index |= (vid << 8); /* upper 8 bits */
 
                 dprintk ("   FID: 0x%x (%d.%dx [%dMHz])  "
-                         "VID: 0x%x (%d.%03dV)\n", fid, fid_codes[fid] / 10, 
-                         fid_codes[fid] % 10, speed/1000, vid,  
+                         "VID: 0x%x (%d.%03dV)\n", fid, fid_codes[fid] / 10,
+                         fid_codes[fid] % 10, speed/1000, vid,
                          mobile_vid_table[vid]/1000,
                          mobile_vid_table[vid]%1000);
         }
@@ -368,8 +368,8 @@ static int powernow_acpi_init(void)
                 }
 
                 dprintk ("   FID: 0x%x (%d.%dx [%dMHz])  "
-                         "VID: 0x%x (%d.%03dV)\n", fid, fid_codes[fid] / 10, 
-                         fid_codes[fid] % 10, speed/1000, vid,  
+                         "VID: 0x%x (%d.%03dV)\n", fid, fid_codes[fid] / 10,
+                         fid_codes[fid] % 10, speed/1000, vid,
                          mobile_vid_table[vid]/1000,
                          mobile_vid_table[vid]%1000);
 
@@ -460,7 +460,7 @@ static int powernow_decode_bios (int maxfid, int startvid)
                                     (maxfid==pst->maxfid) && (startvid==pst->startvid))
                                 {
                                         dprintk ("PST:%d (@%p)\n", i, pst);
-                                        dprintk (" cpuid: 0x%x  fsb: %d  maxFID: 0x%x  startvid: 0x%x\n", 
+                                        dprintk (" cpuid: 0x%x  fsb: %d  maxFID: 0x%x  startvid: 0x%x\n",
                                                  pst->cpuid, pst->fsbspeed, pst->maxfid, pst->startvid);
 
                                         ret = get_ranges ((char *) pst + sizeof (struct pst_s));
diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
index e11a09207ec8..712a26bd4457 100644
--- a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
@@ -40,21 +40,22 @@
 
 #ifdef CONFIG_X86_POWERNOW_K8_ACPI
 #include <linux/acpi.h>
+#include <linux/mutex.h>
 #include <acpi/processor.h>
 #endif
 
 #define PFX "powernow-k8: "
 #define BFX PFX "BIOS error: "
-#define VERSION "version 1.60.0"
+#define VERSION "version 1.60.1"
 #include "powernow-k8.h"
 
 /* serialize freq changes  */
-static DECLARE_MUTEX(fidvid_sem);
+static DEFINE_MUTEX(fidvid_mutex);
 
 static struct powernow_k8_data *powernow_data[NR_CPUS];
 
 #ifndef CONFIG_SMP
-static cpumask_t cpu_core_map[1];
+static cpumask_t cpu_core_map[1] = { CPU_MASK_ALL };
 #endif
 
 /* Return a frequency in MHz, given an input fid */
@@ -83,11 +84,10 @@ static u32 find_millivolts_from_vid(struct powernow_k8_data *data, u32 vid)
  */
 static u32 convert_fid_to_vco_fid(u32 fid)
 {
-        if (fid < HI_FID_TABLE_BOTTOM) {
+        if (fid < HI_FID_TABLE_BOTTOM)
                 return 8 + (2 * fid);
-        } else {
+        else
                 return fid;
-        }
 }
 
 /*
@@ -177,7 +177,7 @@ static int write_new_fid(struct powernow_k8_data *data, u32 fid)
                 if (i++ > 100) {
                         printk(KERN_ERR PFX "internal error - pending bit very stuck - no further pstate changes possible\n");
                         return 1;
-                }                       
+                }
         } while (query_current_values_with_pending_wait(data));
 
         count_off_irt(data);
@@ -474,8 +474,10 @@ static int check_supported_cpu(unsigned int cpu)
                 goto out;
 
         eax = cpuid_eax(CPUID_PROCESSOR_SIGNATURE);
+        if ((eax & CPUID_XFAM) != CPUID_XFAM_K8)
+                goto out;
+
         if (((eax & CPUID_USE_XFAM_XMOD) != CPUID_USE_XFAM_XMOD) ||
-            ((eax & CPUID_XFAM) != CPUID_XFAM_K8) ||
             ((eax & CPUID_XMOD) > CPUID_XMOD_REV_G)) {
                 printk(KERN_INFO PFX "Processor cpuid %x not supported\n", eax);
                 goto out;
@@ -780,9 +782,7 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data)
                 /* verify only 1 entry from the lo frequency table */
                 if (fid < HI_FID_TABLE_BOTTOM) {
                         if (cntlofreq) {
-                                /* if both entries are the same, ignore this
-                                 * one... 
-                                 */
+                                /* if both entries are the same, ignore this one ... */
                                 if ((powernow_table[i].frequency != powernow_table[cntlofreq].frequency) ||
                                     (powernow_table[i].index != powernow_table[cntlofreq].index)) {
                                         printk(KERN_ERR PFX "Too many lo freq table entries\n");
@@ -854,7 +854,7 @@ static int transition_frequency(struct powernow_k8_data *data, unsigned int inde
         dprintk("cpu %d transition to index %u\n", smp_processor_id(), index);
 
         /* fid are the lower 8 bits of the index we stored into
-         * the cpufreq frequency table in find_psb_table, vid are 
+         * the cpufreq frequency table in find_psb_table, vid are
          * the upper 8 bits.
          */
 
@@ -909,7 +909,6 @@ static int powernowk8_target(struct cpufreq_policy *pol, unsigned targfreq, unsi
         u32 checkvid = data->currvid;
         unsigned int newstate;
         int ret = -EIO;
-        int i;
 
         /* only run on specific CPU from here on */
         oldmask = current->cpus_allowed;
@@ -945,23 +944,17 @@ static int powernowk8_target(struct cpufreq_policy *pol, unsigned targfreq, unsi
         if (cpufreq_frequency_table_target(pol, data->powernow_table, targfreq, relation, &newstate))
                 goto err_out;
 
-        down(&fidvid_sem);
+        mutex_lock(&fidvid_mutex);
 
         powernow_k8_acpi_pst_values(data, newstate);
 
         if (transition_frequency(data, newstate)) {
                 printk(KERN_ERR PFX "transition frequency failed\n");
                 ret = 1;
-                up(&fidvid_sem);
+                mutex_unlock(&fidvid_mutex);
                 goto err_out;
         }
-
-        /* Update all the fid/vids of our siblings */
-        for_each_cpu_mask(i, cpu_core_map[pol->cpu]) {
-                powernow_data[i]->currvid = data->currvid;
-                powernow_data[i]->currfid = data->currfid;
-        }       
-        up(&fidvid_sem);
+        mutex_unlock(&fidvid_mutex);
 
         pol->cur = find_khz_freq_from_fid(data->currfid);
         ret = 0;
@@ -1048,7 +1041,7 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
         pol->governor = CPUFREQ_DEFAULT_GOVERNOR;
         pol->cpus = cpu_core_map[pol->cpu];
 
-        /* Take a crude guess here. 
+        /* Take a crude guess here.
          * That guess was in microseconds, so multiply with 1000 */
         pol->cpuinfo.transition_latency = (((data->rvo + 8) * data->vstable * VST_UNITS_20US)
             + (3 * (1 << data->irt) * 10)) * 1000;
@@ -1070,9 +1063,8 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
         printk("cpu_init done, current fid 0x%x, vid 0x%x\n",
                data->currfid, data->currvid);
 
-        for_each_cpu_mask(i, cpu_core_map[pol->cpu]) {
+        for_each_cpu_mask(i, cpu_core_map[pol->cpu])
                 powernow_data[i] = data;
-        }
 
         return 0;
 
@@ -1103,10 +1095,15 @@ static int __devexit powernowk8_cpu_exit (struct cpufreq_policy *pol)
 
 static unsigned int powernowk8_get (unsigned int cpu)
 {
-        struct powernow_k8_data *data = powernow_data[cpu];
+        struct powernow_k8_data *data;
         cpumask_t oldmask = current->cpus_allowed;
         unsigned int khz = 0;
 
+        data = powernow_data[first_cpu(cpu_core_map[cpu])];
+
+        if (!data)
+                return -EINVAL;
+
         set_cpus_allowed(current, cpumask_of_cpu(cpu));
         if (smp_processor_id() != cpu) {
                 printk(KERN_ERR PFX "limiting to CPU %d failed in powernowk8_get\n", cpu);
@@ -1145,16 +1142,14 @@ static int __cpuinit powernowk8_init(void)
 {
         unsigned int i, supported_cpus = 0;
 
-        for (i=0; i<NR_CPUS; i++) {
-                if (!cpu_online(i))
-                        continue;
+        for_each_online_cpu(i) {
                 if (check_supported_cpu(i))
                         supported_cpus++;
         }
 
         if (supported_cpus == num_online_cpus()) {
-                printk(KERN_INFO PFX "Found %d AMD Athlon 64 / Opteron processors (" VERSION ")\n",
-                        supported_cpus);
+                printk(KERN_INFO PFX "Found %d AMD Athlon 64 / Opteron "
+                        "processors (" VERSION ")\n", supported_cpus);
                 return cpufreq_register_driver(&cpufreq_amd64_driver);
         }
 
diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k8.h b/arch/i386/kernel/cpu/cpufreq/powernow-k8.h
index d0de37d58e9a..79a7c5c87edc 100644
--- a/arch/i386/kernel/cpu/cpufreq/powernow-k8.h
+++ b/arch/i386/kernel/cpu/cpufreq/powernow-k8.h
@@ -63,7 +63,7 @@ struct powernow_k8_data {
 #define MSR_C_LO_VID_SHIFT        8
 
 /* Field definitions within the FID VID High Control MSR : */
-#define MSR_C_HI_STP_GNT_TO       0x000fffff
+#define MSR_C_HI_STP_GNT_TO       0x000fffff
 
 /* Field definitions within the FID VID Low Status MSR : */
 #define MSR_S_LO_CHANGE_PENDING   0x80000000   /* cleared when completed */
@@ -123,7 +123,7 @@ struct powernow_k8_data {
  * Most values of interest are enocoded in a single field of the _PSS
  * entries: the "control" value.
  */
-                                                                                                    
+
 #define IRT_SHIFT      30
 #define RVO_SHIFT      28
 #define EXT_TYPE_SHIFT 27
@@ -182,10 +182,6 @@ static int core_frequency_transition(struct powernow_k8_data *data, u32 reqfid);
 
 static void powernow_k8_acpi_pst_values(struct powernow_k8_data *data, unsigned int index);
 
-#ifndef for_each_cpu_mask
-#define for_each_cpu_mask(i,mask) for (i=0;i<1;i++)
-#endif
-                                                                                
 #ifdef CONFIG_SMP
 static inline void define_siblings(int cpu, cpumask_t cpu_sharedcore_mask[])
 {
diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
index c173c0fa117a..b0ff9075708c 100644
--- a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
+++ b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
@@ -479,15 +479,13 @@ static int centrino_cpu_init(struct cpufreq_policy *policy)
         unsigned l, h;
         int ret;
         int i;
-        struct cpuinfo_x86 *c = &cpu_data[policy->cpu];
 
         /* Only Intel makes Enhanced Speedstep-capable CPUs */
         if (cpu->x86_vendor != X86_VENDOR_INTEL || !cpu_has(cpu, X86_FEATURE_EST))
                 return -ENODEV;
 
-        if (cpu_has(c, X86_FEATURE_CONSTANT_TSC)) {
+        if (cpu_has(cpu, X86_FEATURE_CONSTANT_TSC))
                 centrino_driver.flags |= CPUFREQ_CONST_LOOPS;
-        }
 
         if (centrino_cpu_init_acpi(policy)) {
                 if (policy->cpu != 0)
diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c b/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c
index 7c47005a1805..4f46cac155c4 100644
--- a/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c
+++ b/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c
@@ -9,7 +9,7 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/module.h> 
+#include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/init.h>
 #include <linux/cpufreq.h>
@@ -36,8 +36,8 @@ static unsigned int pentium3_get_frequency (unsigned int processor)
         /* See table 14 of p3_ds.pdf and table 22 of 29834003.pdf */
         struct {
                 unsigned int ratio;     /* Frequency Multiplier (x10) */
-                u8 bitmap;              /* power on configuration bits
-                                           [27, 25:22] (in MSR 0x2a) */
+                u8 bitmap;              /* power on configuration bits
+                                        [27, 25:22] (in MSR 0x2a) */
         } msr_decode_mult [] = {
                 { 30, 0x01 },
                 { 35, 0x05 },
@@ -58,9 +58,9 @@ static unsigned int pentium3_get_frequency (unsigned int processor)
 
         /* PIII(-M) FSB settings: see table b1-b of 24547206.pdf */
         struct {
-                unsigned int value;     /* Front Side Bus speed in MHz */
-                u8 bitmap;              /* power on configuration bits [18: 19]
-                                           (in MSR 0x2a) */
+                unsigned int value;     /* Front Side Bus speed in MHz */
+                u8 bitmap;              /* power on configuration bits [18: 19]
+                                        (in MSR 0x2a) */
         } msr_decode_fsb [] = {
                 {  66, 0x0 },
                 { 100, 0x2 },
@@ -68,8 +68,8 @@ static unsigned int pentium3_get_frequency (unsigned int processor)
                 {   0, 0xff}
         };
 
-        u32     msr_lo, msr_tmp;
-        int     i = 0, j = 0;
+        u32 msr_lo, msr_tmp;
+        int i = 0, j = 0;
 
         /* read MSR 0x2a - we only need the low 32 bits */
         rdmsr(MSR_IA32_EBL_CR_POWERON, msr_lo, msr_tmp);
@@ -106,7 +106,7 @@ static unsigned int pentium3_get_frequency (unsigned int processor)
 
 static unsigned int pentiumM_get_frequency(void)
 {
-        u32     msr_lo, msr_tmp;
+        u32 msr_lo, msr_tmp;
 
         rdmsr(MSR_IA32_EBL_CR_POWERON, msr_lo, msr_tmp);
         dprintk("PM - MSR_IA32_EBL_CR_POWERON: 0x%x 0x%x\n", msr_lo, msr_tmp);
@@ -134,7 +134,7 @@ static unsigned int pentium4_get_frequency(void)
 
         dprintk("P4 - MSR_EBC_FREQUENCY_ID: 0x%x 0x%x\n", msr_lo, msr_hi);
 
-        /* decode the FSB: see IA-32 Intel (C) Architecture Software 
+        /* decode the FSB: see IA-32 Intel (C) Architecture Software
          * Developer's Manual, Volume 3: System Prgramming Guide,
          * revision #12 in Table B-1: MSRs in the Pentium 4 and
          * Intel Xeon Processors, on page B-4 and B-5.
@@ -170,7 +170,7 @@ static unsigned int pentium4_get_frequency(void)
         return (fsb * mult);
 }
 
- 
+
 unsigned int speedstep_get_processor_frequency(unsigned int processor)
 {
         switch (processor) {
@@ -198,11 +198,11 @@ EXPORT_SYMBOL_GPL(speedstep_get_processor_frequency);
 unsigned int speedstep_detect_processor (void)
 {
         struct cpuinfo_x86 *c = cpu_data;
-        u32                     ebx, msr_lo, msr_hi;
+        u32 ebx, msr_lo, msr_hi;
 
         dprintk("x86: %x, model: %x\n", c->x86, c->x86_model);
 
-        if ((c->x86_vendor != X86_VENDOR_INTEL) || 
+        if ((c->x86_vendor != X86_VENDOR_INTEL) ||
             ((c->x86 != 6) && (c->x86 != 0xF)))
                 return 0;
 
@@ -218,15 +218,15 @@ unsigned int speedstep_detect_processor (void)
                 dprintk("ebx value is %x, x86_mask is %x\n", ebx, c->x86_mask);
 
                 switch (c->x86_mask) {
-                case 4: 
+                case 4:
                         /*
-                         * B-stepping [M-P4-M] 
+                         * B-stepping [M-P4-M]
                          * sample has ebx = 0x0f, production has 0x0e.
                          */
                         if ((ebx == 0x0e) || (ebx == 0x0f))
                                 return SPEEDSTEP_PROCESSOR_P4M;
                         break;
-                case 7: 
+                case 7:
                         /*
                          * C-stepping [M-P4-M]
                          * needs to have ebx=0x0e, else it's a celeron:
@@ -253,7 +253,7 @@ unsigned int speedstep_detect_processor (void)
                          * also, M-P4M HTs have ebx=0x8, too
                          * For now, they are distinguished by the model_id string
                          */
-                        if ((ebx == 0x0e) || (strstr(c->x86_model_id,"Mobile Intel(R) Pentium(R) 4") != NULL)) 
+                        if ((ebx == 0x0e) || (strstr(c->x86_model_id,"Mobile Intel(R) Pentium(R) 4") != NULL))
                                 return SPEEDSTEP_PROCESSOR_P4M;
                         break;
                 default:
@@ -264,8 +264,7 @@ unsigned int speedstep_detect_processor (void)
 
         switch (c->x86_model) {
         case 0x0B: /* Intel PIII [Tualatin] */
-                /* cpuid_ebx(1) is 0x04 for desktop PIII, 
-                                   0x06 for mobile PIII-M */
+                /* cpuid_ebx(1) is 0x04 for desktop PIII, 0x06 for mobile PIII-M */
                 ebx = cpuid_ebx(0x00000001);
                 dprintk("ebx is %x\n", ebx);
 
@@ -275,9 +274,8 @@ unsigned int speedstep_detect_processor (void)
                         return 0;
 
                 /* So far all PIII-M processors support SpeedStep. See
-                 * Intel's 24540640.pdf of June 2003 
+                 * Intel's 24540640.pdf of June 2003
                  */
-
                 return SPEEDSTEP_PROCESSOR_PIII_T;
 
         case 0x08: /* Intel PIII [Coppermine] */
@@ -399,7 +397,7 @@ unsigned int speedstep_get_freqs(unsigned int processor,
                 }
         }
 
- out:
+out:
         local_irq_restore(flags);
         return (ret);
 }
diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-lib.h b/arch/i386/kernel/cpu/cpufreq/speedstep-lib.h
index 6a727fd3a77e..b735429c50b4 100644
--- a/arch/i386/kernel/cpu/cpufreq/speedstep-lib.h
+++ b/arch/i386/kernel/cpu/cpufreq/speedstep-lib.h
@@ -14,7 +14,7 @@
 
 #define SPEEDSTEP_PROCESSOR_PIII_C_EARLY        0x00000001  /* Coppermine core */
 #define SPEEDSTEP_PROCESSOR_PIII_C              0x00000002  /* Coppermine core */
-#define SPEEDSTEP_PROCESSOR_PIII_T              0x00000003  /* Tualatin core */
+#define SPEEDSTEP_PROCESSOR_PIII_T              0x00000003  /* Tualatin core */
 #define SPEEDSTEP_PROCESSOR_P4M                 0x00000004  /* P4-M  */
 
 /* the following processors are not speedstep-capable and are not auto-detected
@@ -25,8 +25,8 @@
 
 /* speedstep states -- only two of them */
 
-#define SPEEDSTEP_HIGH                  0x00000000
-#define SPEEDSTEP_LOW                   0x00000001
+#define SPEEDSTEP_HIGH  0x00000000
+#define SPEEDSTEP_LOW   0x00000001
 
 
 /* detect a speedstep-capable processor */
@@ -36,13 +36,13 @@ extern unsigned int speedstep_detect_processor (void);
 extern unsigned int speedstep_get_processor_frequency(unsigned int processor);
 
 
-/* detect the low and high speeds of the processor. The callback 
- * set_state"'s first argument is either SPEEDSTEP_HIGH or 
- * SPEEDSTEP_LOW; the second argument is zero so that no 
+/* detect the low and high speeds of the processor. The callback
+ * set_state"'s first argument is either SPEEDSTEP_HIGH or
+ * SPEEDSTEP_LOW; the second argument is zero so that no
  * cpufreq_notify_transition calls are initiated.
  */
 extern unsigned int speedstep_get_freqs(unsigned int processor,
-          unsigned int *low_speed,
-          unsigned int *high_speed,
-          unsigned int *transition_latency,
-          void (*set_state) (unsigned int state));
+        unsigned int *low_speed,
+        unsigned int *high_speed,
+        unsigned int *transition_latency,
+        void (*set_state) (unsigned int state));
diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c b/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c
index 28cc5d524afc..c28333d53646 100644
--- a/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c
+++ b/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c
@@ -13,8 +13,8 @@
  *********************************************************************/
 
 #include <linux/kernel.h>
-#include <linux/module.h> 
-#include <linux/moduleparam.h> 
+#include <linux/module.h>
+#include <linux/moduleparam.h>
 #include <linux/init.h>
 #include <linux/cpufreq.h>
 #include <linux/pci.h>
@@ -28,21 +28,21 @@
  *
  * These parameters are got from IST-SMI BIOS call.
  * If user gives it, these are used.
- * 
+ *
  */
-static int              smi_port        = 0;
-static int              smi_cmd         = 0;
-static unsigned int     smi_sig         = 0;
+static int smi_port = 0;
+static int smi_cmd = 0;
+static unsigned int smi_sig = 0;
 
 /* info about the processor */
-static unsigned int     speedstep_processor = 0;
+static unsigned int speedstep_processor = 0;
 
-/* 
- *   There are only two frequency states for each processor. Values
+/*
+ * There are only two frequency states for each processor. Values
  * are in kHz for the time being.
  */
 static struct cpufreq_frequency_table speedstep_freqs[] = {
-        {SPEEDSTEP_HIGH,        0},
+        {SPEEDSTEP_HIGH,        0},
         {SPEEDSTEP_LOW,         0},
         {0,                     CPUFREQ_TABLE_END},
 };
@@ -75,7 +75,9 @@ static int speedstep_smi_ownership (void)
         __asm__ __volatile__(
                 "out %%al, (%%dx)\n"
                 : "=D" (result)
-                : "a" (command), "b" (function), "c" (0), "d" (smi_port), "D" (0), "S" (magic)
+                : "a" (command), "b" (function), "c" (0), "d" (smi_port),
+                        "D" (0), "S" (magic)
+                : "memory"
         );
 
         dprintk("result is %x\n", result);
@@ -123,7 +125,7 @@ static int speedstep_smi_get_freqs (unsigned int *low, unsigned int *high)
         *low  = low_mhz  * 1000;
 
         return result;
-} 
+}
 
 /**
  * speedstep_get_state - set the SpeedStep state
@@ -204,7 +206,7 @@ static void speedstep_set_state (unsigned int state)
  * speedstep_target - set a new CPUFreq policy
  * @policy: new policy
  * @target_freq: new freq
- * @relation: 
+ * @relation:
  *
  * Sets a new CPUFreq policy/freq.
  */
@@ -283,7 +285,7 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy)
         state = speedstep_get_state();
         speed = speedstep_freqs[state].frequency;
 
-        dprintk("currently at %s speed setting - %i MHz\n", 
+        dprintk("currently at %s speed setting - %i MHz\n",
                 (speed == speedstep_freqs[SPEEDSTEP_LOW].frequency) ? "low" : "high",
                 (speed / 1000));
 
@@ -296,7 +298,7 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy)
         if (result)
                 return (result);
 
-        cpufreq_frequency_table_get_attr(speedstep_freqs, policy->cpu);
+        cpufreq_frequency_table_get_attr(speedstep_freqs, policy->cpu);
 
         return 0;
 }
@@ -332,8 +334,8 @@ static struct freq_attr* speedstep_attr[] = {
 
 static struct cpufreq_driver speedstep_driver = {
         .name           = "speedstep-smi",
-        .verify         = speedstep_verify,
-        .target         = speedstep_target,
+        .verify         = speedstep_verify,
+        .target         = speedstep_target,
         .init           = speedstep_cpu_init,
         .exit           = speedstep_cpu_exit,
         .get            = speedstep_get,
@@ -370,13 +372,12 @@ static int __init speedstep_init(void)
                 return -ENODEV;
         }
 
-        dprintk("signature:0x%.8lx, command:0x%.8lx, event:0x%.8lx, perf_level:0x%.8lx.\n", 
+        dprintk("signature:0x%.8lx, command:0x%.8lx, event:0x%.8lx, perf_level:0x%.8lx.\n",
                 ist_info.signature, ist_info.command, ist_info.event, ist_info.perf_level);
 
-
-        /* Error if no IST-SMI BIOS or no PARM 
+        /* Error if no IST-SMI BIOS or no PARM
                  sig= 'ISGE' aka 'Intel Speedstep Gate E' */
-        if ((ist_info.signature !=  0x47534943) && ( 
+        if ((ist_info.signature !=  0x47534943) && (
             (smi_port == 0) || (smi_cmd == 0)))
                 return -ENODEV;
 
@@ -386,17 +387,15 @@ static int __init speedstep_init(void)
                 smi_sig = ist_info.signature;
 
         /* setup smi_port from MODLULE_PARM or BIOS */
-        if ((smi_port > 0xff) || (smi_port < 0)) {
+        if ((smi_port > 0xff) || (smi_port < 0))
                 return -EINVAL;
-        } else if (smi_port == 0) {
+        else if (smi_port == 0)
                 smi_port = ist_info.command & 0xff;
-        }
 
-        if ((smi_cmd > 0xff) || (smi_cmd < 0)) {
+        if ((smi_cmd > 0xff) || (smi_cmd < 0))
                 return -EINVAL;
-        } else if (smi_cmd == 0) {
+        else if (smi_cmd == 0)
                 smi_cmd = (ist_info.command >> 16) & 0xff;
-        }
 
         return cpufreq_register_driver(&speedstep_driver);
 }
diff --git a/arch/i386/kernel/cpu/intel.c b/arch/i386/kernel/cpu/intel.c
index 8c0120186b9f..5386b29bb5a5 100644
--- a/arch/i386/kernel/cpu/intel.c
+++ b/arch/i386/kernel/cpu/intel.c
@@ -29,7 +29,7 @@ extern int trap_init_f00f_bug(void);
 struct movsl_mask movsl_mask __read_mostly;
 #endif
 
-void __devinit early_intel_workaround(struct cpuinfo_x86 *c)
+void __cpuinit early_intel_workaround(struct cpuinfo_x86 *c)
 {
         if (c->x86_vendor != X86_VENDOR_INTEL)
                 return;
@@ -44,7 +44,7 @@ void __devinit early_intel_workaround(struct cpuinfo_x86 *c)
  *      This is called before we do cpu ident work
  */
  
-int __devinit ppro_with_ram_bug(void)
+int __cpuinit ppro_with_ram_bug(void)
 {
         /* Uses data from early_cpu_detect now */
         if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL &&
@@ -62,7 +62,7 @@ int __devinit ppro_with_ram_bug(void)
  * P4 Xeon errata 037 workaround.
  * Hardware prefetcher may cause stale data to be loaded into the cache.
  */
-static void __devinit Intel_errata_workarounds(struct cpuinfo_x86 *c)
+static void __cpuinit Intel_errata_workarounds(struct cpuinfo_x86 *c)
 {
         unsigned long lo, hi;
 
@@ -81,7 +81,7 @@ static void __devinit Intel_errata_workarounds(struct cpuinfo_x86 *c)
 /*
  * find out the number of processor cores on the die
  */
-static int __devinit num_cpu_cores(struct cpuinfo_x86 *c)
+static int __cpuinit num_cpu_cores(struct cpuinfo_x86 *c)
 {
         unsigned int eax, ebx, ecx, edx;
 
@@ -96,7 +96,7 @@ static int __devinit num_cpu_cores(struct cpuinfo_x86 *c)
                 return 1;
 }
 
-static void __devinit init_intel(struct cpuinfo_x86 *c)
+static void __cpuinit init_intel(struct cpuinfo_x86 *c)
 {
         unsigned int l2 = 0;
         char *p = NULL;
@@ -205,7 +205,7 @@ static unsigned int intel_size_cache(struct cpuinfo_x86 * c, unsigned int size)
         return size;
 }
 
-static struct cpu_dev intel_cpu_dev __devinitdata = {
+static struct cpu_dev intel_cpu_dev __cpuinitdata = {
         .c_vendor       = "Intel",
         .c_ident        = { "GenuineIntel" },
         .c_models = {
diff --git a/arch/i386/kernel/cpu/intel_cacheinfo.c b/arch/i386/kernel/cpu/intel_cacheinfo.c
index ffe58cee0c48..9df87b03612c 100644
--- a/arch/i386/kernel/cpu/intel_cacheinfo.c
+++ b/arch/i386/kernel/cpu/intel_cacheinfo.c
@@ -173,8 +173,12 @@ unsigned int __cpuinit init_intel_cacheinfo(struct cpuinfo_x86 *c)
         unsigned int trace = 0, l1i = 0, l1d = 0, l2 = 0, l3 = 0; /* Cache sizes */
         unsigned int new_l1d = 0, new_l1i = 0; /* Cache sizes from cpuid(4) */
         unsigned int new_l2 = 0, new_l3 = 0, i; /* Cache sizes from cpuid(4) */
+        unsigned int l2_id = 0, l3_id = 0, num_threads_sharing, index_msb;
+#ifdef CONFIG_SMP
+        unsigned int cpu = (c == &boot_cpu_data) ? 0 : (c - cpu_data);
+#endif
 
-        if (c->cpuid_level > 4) {
+        if (c->cpuid_level > 3) {
                 static int is_initialized;
 
                 if (is_initialized == 0) {
@@ -205,9 +209,15 @@ unsigned int __cpuinit init_intel_cacheinfo(struct cpuinfo_x86 *c)
                                         break;
                                     case 2:
                                         new_l2 = this_leaf.size/1024;
+                                        num_threads_sharing = 1 + this_leaf.eax.split.num_threads_sharing;
+                                        index_msb = get_count_order(num_threads_sharing);
+                                        l2_id = c->apicid >> index_msb;
                                         break;
                                     case 3:
                                         new_l3 = this_leaf.size/1024;
+                                        num_threads_sharing = 1 + this_leaf.eax.split.num_threads_sharing;
+                                        index_msb = get_count_order(num_threads_sharing);
+                                        l3_id = c->apicid >> index_msb;
                                         break;
                                     default:
                                         break;
@@ -215,11 +225,19 @@ unsigned int __cpuinit init_intel_cacheinfo(struct cpuinfo_x86 *c)
                         }
                 }
         }
-        if (c->cpuid_level > 1) {
+        /*
+         * Don't use cpuid2 if cpuid4 is supported. For P4, we use cpuid2 for
+         * trace cache
+         */
+        if ((num_cache_leaves == 0 || c->x86 == 15) && c->cpuid_level > 1) {
                 /* supports eax=2  call */
                 int i, j, n;
                 int regs[4];
                 unsigned char *dp = (unsigned char *)regs;
+                int only_trace = 0;
+
+                if (num_cache_leaves != 0 && c->x86 == 15)
+                        only_trace = 1;
 
                 /* Number of times to iterate */
                 n = cpuid_eax(2) & 0xFF;
@@ -241,6 +259,8 @@ unsigned int __cpuinit init_intel_cacheinfo(struct cpuinfo_x86 *c)
                                 while (cache_table[k].descriptor != 0)
                                 {
                                         if (cache_table[k].descriptor == des) {
+                                                if (only_trace && cache_table[k].cache_type != LVL_TRACE)
+                                                        break;
                                                 switch (cache_table[k].cache_type) {
                                                 case LVL_1_INST:
                                                         l1i += cache_table[k].size;
@@ -266,34 +286,45 @@ unsigned int __cpuinit init_intel_cacheinfo(struct cpuinfo_x86 *c)
                                 }
                         }
                 }
+        }
 
-                if (new_l1d)
-                        l1d = new_l1d;
+        if (new_l1d)
+                l1d = new_l1d;
 
-                if (new_l1i)
-                        l1i = new_l1i;
+        if (new_l1i)
+                l1i = new_l1i;
 
-                if (new_l2)
-                        l2 = new_l2;
+        if (new_l2) {
+                l2 = new_l2;
+#ifdef CONFIG_SMP
+                cpu_llc_id[cpu] = l2_id;
+#endif
+        }
 
-                if (new_l3)
-                        l3 = new_l3;
+        if (new_l3) {
+                l3 = new_l3;
+#ifdef CONFIG_SMP
+                cpu_llc_id[cpu] = l3_id;
+#endif
+        }
 
-                if ( trace )
-                        printk (KERN_INFO "CPU: Trace cache: %dK uops", trace);
-                else if ( l1i )
-                        printk (KERN_INFO "CPU: L1 I cache: %dK", l1i);
-                if ( l1d )
-                        printk(", L1 D cache: %dK\n", l1d);
-                else
-                        printk("\n");
-                if ( l2 )
-                        printk(KERN_INFO "CPU: L2 cache: %dK\n", l2);
-                if ( l3 )
-                        printk(KERN_INFO "CPU: L3 cache: %dK\n", l3);
+        if (trace)
+                printk (KERN_INFO "CPU: Trace cache: %dK uops", trace);
+        else if ( l1i )
+                printk (KERN_INFO "CPU: L1 I cache: %dK", l1i);
 
-                c->x86_cache_size = l3 ? l3 : (l2 ? l2 : (l1i+l1d));
-        }
+        if (l1d)
+                printk(", L1 D cache: %dK\n", l1d);
+        else
+                printk("\n");
+
+        if (l2)
+                printk(KERN_INFO "CPU: L2 cache: %dK\n", l2);
+
+        if (l3)
+                printk(KERN_INFO "CPU: L3 cache: %dK\n", l3);
+
+        c->x86_cache_size = l3 ? l3 : (l2 ? l2 : (l1i+l1d));
 
         return l2;
 }
@@ -330,7 +361,7 @@ static void __cpuinit cache_shared_cpu_map_setup(unsigned int cpu, int index)
                 }
         }
 }
-static void __devinit cache_remove_shared_cpu_map(unsigned int cpu, int index)
+static void __cpuinit cache_remove_shared_cpu_map(unsigned int cpu, int index)
 {
         struct _cpuid4_info     *this_leaf, *sibling_leaf;
         int sibling;
diff --git a/arch/i386/kernel/cpu/mcheck/mce.c b/arch/i386/kernel/cpu/mcheck/mce.c
index 6170af3c271a..afa0888f9a1e 100644
--- a/arch/i386/kernel/cpu/mcheck/mce.c
+++ b/arch/i386/kernel/cpu/mcheck/mce.c
@@ -64,13 +64,13 @@ void mcheck_init(struct cpuinfo_x86 *c)
 static int __init mcheck_disable(char *str)
 {
         mce_disabled = 1;
-        return 0;
+        return 1;
 }
 
 static int __init mcheck_enable(char *str)
 {
         mce_disabled = -1;
-        return 0;
+        return 1;
 }
 
 __setup("nomce", mcheck_disable);
diff --git a/arch/i386/kernel/cpu/mtrr/main.c b/arch/i386/kernel/cpu/mtrr/main.c
index 3b4618bed70d..fff90bda4733 100644
--- a/arch/i386/kernel/cpu/mtrr/main.c
+++ b/arch/i386/kernel/cpu/mtrr/main.c
@@ -36,6 +36,7 @@
 #include <linux/pci.h>
 #include <linux/smp.h>
 #include <linux/cpu.h>
+#include <linux/mutex.h>
 
 #include <asm/mtrr.h>
 
@@ -47,7 +48,7 @@
 u32 num_var_ranges = 0;
 
 unsigned int *usage_table;
-static DECLARE_MUTEX(mtrr_sem);
+static DEFINE_MUTEX(mtrr_mutex);
 
 u32 size_or_mask, size_and_mask;
 
@@ -333,7 +334,7 @@ int mtrr_add_page(unsigned long base, unsigned long size,
         /* No CPU hotplug when we change MTRR entries */
         lock_cpu_hotplug();
         /*  Search for existing MTRR  */
-        down(&mtrr_sem);
+        mutex_lock(&mtrr_mutex);
         for (i = 0; i < num_var_ranges; ++i) {
                 mtrr_if->get(i, &lbase, &lsize, &ltype);
                 if (base >= lbase + lsize)
@@ -371,7 +372,7 @@ int mtrr_add_page(unsigned long base, unsigned long size,
                 printk(KERN_INFO "mtrr: no more MTRRs available\n");
         error = i;
  out:
-        up(&mtrr_sem);
+        mutex_unlock(&mtrr_mutex);
         unlock_cpu_hotplug();
         return error;
 }
@@ -464,7 +465,7 @@ int mtrr_del_page(int reg, unsigned long base, unsigned long size)
         max = num_var_ranges;
         /* No CPU hotplug when we change MTRR entries */
         lock_cpu_hotplug();
-        down(&mtrr_sem);
+        mutex_lock(&mtrr_mutex);
         if (reg < 0) {
                 /*  Search for existing MTRR  */
                 for (i = 0; i < max; ++i) {
@@ -503,7 +504,7 @@ int mtrr_del_page(int reg, unsigned long base, unsigned long size)
                 set_mtrr(reg, 0, 0, 0);
         error = reg;
  out:
-        up(&mtrr_sem);
+        mutex_unlock(&mtrr_mutex);
         unlock_cpu_hotplug();
         return error;
 }
@@ -685,7 +686,7 @@ void mtrr_ap_init(void)
         if (!mtrr_if || !use_intel())
                 return;
         /*
-         * Ideally we should hold mtrr_sem here to avoid mtrr entries changed,
+         * Ideally we should hold mtrr_mutex here to avoid mtrr entries changed,
          * but this routine will be called in cpu boot time, holding the lock
          * breaks it. This routine is called in two cases: 1.very earily time
          * of software resume, when there absolutely isn't mtrr entry changes;
diff --git a/arch/i386/kernel/cpu/proc.c b/arch/i386/kernel/cpu/proc.c
index 89a85af33d28..f94cdb7aca50 100644
--- a/arch/i386/kernel/cpu/proc.c
+++ b/arch/i386/kernel/cpu/proc.c
@@ -40,12 +40,12 @@ 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", NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+                "constant_tsc", "up", NULL, NULL, NULL, NULL, NULL, NULL,
                 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
                 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 
                 /* Intel-defined (#2) */
-                "pni", NULL, NULL, "monitor", "ds_cpl", "vmx", NULL, "est",
+                "pni", NULL, NULL, "monitor", "ds_cpl", "vmx", "smx", "est",
                 "tm2", NULL, "cid", NULL, NULL, "cx16", "xtpr", NULL,
                 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
                 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
diff --git a/arch/i386/kernel/crash.c b/arch/i386/kernel/crash.c
index d49dbe8dc96b..e3c5fca0aa8a 100644
--- a/arch/i386/kernel/crash.c
+++ b/arch/i386/kernel/crash.c
@@ -105,7 +105,7 @@ static int crash_nmi_callback(struct pt_regs *regs, int cpu)
                 return 1;
         local_irq_disable();
 
-        if (!user_mode(regs)) {
+        if (!user_mode_vm(regs)) {
                 crash_fixup_ss_esp(&fixed_regs, regs);
                 regs = &fixed_regs;
         }
diff --git a/arch/i386/kernel/dmi_scan.c b/arch/i386/kernel/dmi_scan.c
index 6a93d75db431..5efceebc48dc 100644
--- a/arch/i386/kernel/dmi_scan.c
+++ b/arch/i386/kernel/dmi_scan.c
@@ -3,8 +3,10 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/dmi.h>
+#include <linux/efi.h>
 #include <linux/bootmem.h>
 #include <linux/slab.h>
+#include <asm/dmi.h>
 
 static char * __init dmi_string(struct dmi_header *dm, u8 s)
 {
@@ -106,7 +108,7 @@ static void __init dmi_save_devices(struct dmi_header *dm)
         struct dmi_device *dev;
 
         for (i = 0; i < count; i++) {
-                char *d = ((char *) dm) + (i * 2);
+                char *d = (char *)(dm + 1) + (i * 2);
 
                 /* Skip disabled device */
                 if ((*d & 0x80) == 0)
@@ -184,47 +186,72 @@ static void __init dmi_decode(struct dmi_header *dm)
         }
 }
 
-void __init dmi_scan_machine(void)
+static int __init dmi_present(char __iomem *p)
 {
         u8 buf[15];
-        char __iomem *p, *q;
+        memcpy_fromio(buf, p, 15);
+        if ((memcmp(buf, "_DMI_", 5) == 0) && dmi_checksum(buf)) {
+                u16 num = (buf[13] << 8) | buf[12];
+                u16 len = (buf[7] << 8) | buf[6];
+                u32 base = (buf[11] << 24) | (buf[10] << 16) |
+                        (buf[9] << 8) | buf[8];
 
-        /*
-         * no iounmap() for that ioremap(); it would be a no-op, but it's
-         * so early in setup that sucker gets confused into doing what
-         * it shouldn't if we actually call it.
-         */
-        p = ioremap(0xF0000, 0x10000);
-        if (p == NULL)
-                goto out;
-
-        for (q = p; q < p + 0x10000; q += 16) {
-                memcpy_fromio(buf, q, 15);
-                if ((memcmp(buf, "_DMI_", 5) == 0) && dmi_checksum(buf)) {
-                        u16 num = (buf[13] << 8) | buf[12];
-                        u16 len = (buf[7] << 8) | buf[6];
-                        u32 base = (buf[11] << 24) | (buf[10] << 16) |
-                                   (buf[9] << 8) | buf[8];
-
-                        /*
-                         * DMI version 0.0 means that the real version is taken from
-                         * the SMBIOS version, which we don't know at this point.
-                         */
-                        if (buf[14] != 0)
-                                printk(KERN_INFO "DMI %d.%d present.\n",
-                                        buf[14] >> 4, buf[14] & 0xF);
-                        else
-                                printk(KERN_INFO "DMI present.\n");
+                /*
+                 * DMI version 0.0 means that the real version is taken from
+                 * the SMBIOS version, which we don't know at this point.
+                 */
+                if (buf[14] != 0)
+                        printk(KERN_INFO "DMI %d.%d present.\n",
+                               buf[14] >> 4, buf[14] & 0xF);
+                else
+                        printk(KERN_INFO "DMI present.\n");
+                if (dmi_table(base,len, num, dmi_decode) == 0)
+                        return 0;
+        }
+        return 1;
+}
+
+void __init dmi_scan_machine(void)
+{
+        char __iomem *p, *q;
+        int rc;
+
+        if (efi_enabled) {
+                if (efi.smbios == EFI_INVALID_TABLE_ADDR)
+                        goto out;
+
+               /* This is called as a core_initcall() because it isn't
+                * needed during early boot.  This also means we can
+                * iounmap the space when we're done with it.
+                */
+                p = dmi_ioremap(efi.smbios, 32);
+                if (p == NULL)
+                        goto out;
+
+                rc = dmi_present(p + 0x10); /* offset of _DMI_ string */
+                dmi_iounmap(p, 32);
+                if (!rc)
+                        return;
+        }
+        else {
+                /*
+                 * no iounmap() for that ioremap(); it would be a no-op, but
+                 * it's so early in setup that sucker gets confused into doing
+                 * what it shouldn't if we actually call it.
+                 */
+                p = dmi_ioremap(0xF0000, 0x10000);
+                if (p == NULL)
+                        goto out;
 
-                        if (dmi_table(base,len, num, dmi_decode) == 0)
+                for (q = p; q < p + 0x10000; q += 16) {
+                        rc = dmi_present(q);
+                        if (!rc)
                                 return;
                 }
         }
-
-out:    printk(KERN_INFO "DMI not present or invalid.\n");
+ out:   printk(KERN_INFO "DMI not present or invalid.\n");
 }
 
-
 /**
  *      dmi_check_system - check system DMI data
  *      @list: array of dmi_system_id structures to match against
@@ -299,3 +326,33 @@ struct dmi_device * dmi_find_device(int type, const char *name,
         return NULL;
 }
 EXPORT_SYMBOL(dmi_find_device);
+
+/**
+ *      dmi_get_year - Return year of a DMI date
+ *      @field: data index (like dmi_get_system_info)
+ *
+ *      Returns -1 when the field doesn't exist. 0 when it is broken.
+ */
+int dmi_get_year(int field)
+{
+        int year;
+        char *s = dmi_get_system_info(field);
+
+        if (!s)
+                return -1;
+        if (*s == '\0')
+                return 0;
+        s = strrchr(s, '/');
+        if (!s)
+                return 0;
+
+        s += 1;
+        year = simple_strtoul(s, NULL, 0);
+        if (year && year < 100) {       /* 2-digit year */
+                year += 1900;
+                if (year < 1996)        /* no dates < spec 1.0 */
+                        year += 100;
+        }
+
+        return year;
+}
diff --git a/arch/i386/kernel/efi.c b/arch/i386/kernel/efi.c
index c9cad7ba0d2d..9202b67c4b2e 100644
--- a/arch/i386/kernel/efi.c
+++ b/arch/i386/kernel/efi.c
@@ -115,7 +115,7 @@ static void efi_call_phys_epilog(void)
         unsigned long cr4;
         struct Xgt_desc_struct *cpu_gdt_descr = &per_cpu(cpu_gdt_descr, 0);
 
-        cpu_gdt_descr->address = __va(cpu_gdt_descr->address);
+        cpu_gdt_descr->address = (unsigned long)__va(cpu_gdt_descr->address);
         load_gdt(cpu_gdt_descr);
 
         cr4 = read_cr4();
@@ -361,7 +361,7 @@ void __init efi_init(void)
          */
         c16 = (efi_char16_t *) boot_ioremap(efi.systab->fw_vendor, 2);
         if (c16) {
-                for (i = 0; i < sizeof(vendor) && *c16; ++i)
+                for (i = 0; i < (sizeof(vendor) - 1) && *c16; ++i)
                         vendor[i] = *c16++;
                 vendor[i] = '\0';
         } else
@@ -381,29 +381,38 @@ void __init efi_init(void)
         if (config_tables == NULL)
                 printk(KERN_ERR PFX "Could not map EFI Configuration Table!\n");
 
+        efi.mps        = EFI_INVALID_TABLE_ADDR;
+        efi.acpi       = EFI_INVALID_TABLE_ADDR;
+        efi.acpi20     = EFI_INVALID_TABLE_ADDR;
+        efi.smbios     = EFI_INVALID_TABLE_ADDR;
+        efi.sal_systab = EFI_INVALID_TABLE_ADDR;
+        efi.boot_info  = EFI_INVALID_TABLE_ADDR;
+        efi.hcdp       = EFI_INVALID_TABLE_ADDR;
+        efi.uga        = EFI_INVALID_TABLE_ADDR;
+
         for (i = 0; i < num_config_tables; i++) {
                 if (efi_guidcmp(config_tables[i].guid, MPS_TABLE_GUID) == 0) {
-                        efi.mps = (void *)config_tables[i].table;
+                        efi.mps = config_tables[i].table;
                         printk(KERN_INFO " MPS=0x%lx ", config_tables[i].table);
                 } else
                     if (efi_guidcmp(config_tables[i].guid, ACPI_20_TABLE_GUID) == 0) {
-                        efi.acpi20 = __va(config_tables[i].table);
+                        efi.acpi20 = config_tables[i].table;
                         printk(KERN_INFO " ACPI 2.0=0x%lx ", config_tables[i].table);
                 } else
                     if (efi_guidcmp(config_tables[i].guid, ACPI_TABLE_GUID) == 0) {
-                        efi.acpi = __va(config_tables[i].table);
+                        efi.acpi = config_tables[i].table;
                         printk(KERN_INFO " ACPI=0x%lx ", config_tables[i].table);
                 } else
                     if (efi_guidcmp(config_tables[i].guid, SMBIOS_TABLE_GUID) == 0) {
-                        efi.smbios = (void *) config_tables[i].table;
+                        efi.smbios = config_tables[i].table;
                         printk(KERN_INFO " SMBIOS=0x%lx ", config_tables[i].table);
                 } else
                     if (efi_guidcmp(config_tables[i].guid, HCDP_TABLE_GUID) == 0) {
-                        efi.hcdp = (void *)config_tables[i].table;
+                        efi.hcdp = config_tables[i].table;
                         printk(KERN_INFO " HCDP=0x%lx ", config_tables[i].table);
                 } else
                     if (efi_guidcmp(config_tables[i].guid, UGA_IO_PROTOCOL_GUID) == 0) {
-                        efi.uga = (void *)config_tables[i].table;
+                        efi.uga = config_tables[i].table;
                         printk(KERN_INFO " UGA=0x%lx ", config_tables[i].table);
                 }
         }
@@ -543,7 +552,7 @@ efi_initialize_iomem_resources(struct resource *code_resource,
                 if ((md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT)) >
                     0x100000000ULL)
                         continue;
-                res = alloc_bootmem_low(sizeof(struct resource));
+                res = kzalloc(sizeof(struct resource), GFP_ATOMIC);
                 switch (md->type) {
                 case EFI_RESERVED_TYPE:
                         res->name = "Reserved Memory";
diff --git a/arch/i386/kernel/entry.S b/arch/i386/kernel/entry.S
index 4d704724b2f5..cfc683f153b9 100644
--- a/arch/i386/kernel/entry.S
+++ b/arch/i386/kernel/entry.S
@@ -226,6 +226,10 @@ ENTRY(system_call)
         pushl %eax                      # save orig_eax
         SAVE_ALL
         GET_THREAD_INFO(%ebp)
+        testl $TF_MASK,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)
diff --git a/arch/i386/kernel/head.S b/arch/i386/kernel/head.S
index e0b7c632efbc..3debc2e26542 100644
--- a/arch/i386/kernel/head.S
+++ b/arch/i386/kernel/head.S
@@ -450,7 +450,6 @@ int_msg:
 
 .globl boot_gdt_descr
 .globl idt_descr
-.globl cpu_gdt_descr
 
         ALIGN
 # early boot GDT descriptor (must use 1:1 address mapping)
@@ -470,8 +469,6 @@ cpu_gdt_descr:
         .word GDT_ENTRIES*8-1
         .long cpu_gdt_table
 
-        .fill NR_CPUS-1,8,0             # space for the other GDT descriptors
-
 /*
  * The boot_gdt_table must mirror the equivalent in setup.S and is
  * used only for booting.
@@ -485,7 +482,7 @@ ENTRY(boot_gdt_table)
 /*
  * The Global Descriptor Table contains 28 quadwords, per-CPU.
  */
-        .align PAGE_SIZE_asm
+        .align L1_CACHE_BYTES
 ENTRY(cpu_gdt_table)
         .quad 0x0000000000000000        /* NULL descriptor */
         .quad 0x0000000000000000        /* 0x0b reserved */
diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c
index 39d9a5fa907e..f8f132aa5472 100644
--- a/arch/i386/kernel/io_apic.c
+++ b/arch/i386/kernel/io_apic.c
@@ -351,8 +351,8 @@ static inline void rotate_irqs_among_cpus(unsigned long useful_load_threshold)
 {
         int i, j;
         Dprintk("Rotating IRQs among CPUs.\n");
-        for (i = 0; i < NR_CPUS; i++) {
-                for (j = 0; cpu_online(i) && (j < NR_IRQS); j++) {
+        for_each_online_cpu(i) {
+                for (j = 0; j < NR_IRQS; j++) {
                         if (!irq_desc[j].action)
                                 continue;
                         /* Is it a significant load ?  */
@@ -381,7 +381,7 @@ static void do_irq_balance(void)
         unsigned long imbalance = 0;
         cpumask_t allowed_mask, target_cpu_mask, tmp;
 
-        for (i = 0; i < NR_CPUS; i++) {
+        for_each_possible_cpu(i) {
                 int package_index;
                 CPU_IRQ(i) = 0;
                 if (!cpu_online(i))
@@ -422,9 +422,7 @@ static void do_irq_balance(void)
                 }
         }
         /* Find the least loaded processor package */
-        for (i = 0; i < NR_CPUS; i++) {
-                if (!cpu_online(i))
-                        continue;
+        for_each_online_cpu(i) {
                 if (i != CPU_TO_PACKAGEINDEX(i))
                         continue;
                 if (min_cpu_irq > CPU_IRQ(i)) {
@@ -441,9 +439,7 @@ tryanothercpu:
          */
         tmp_cpu_irq = 0;
         tmp_loaded = -1;
-        for (i = 0; i < NR_CPUS; i++) {
-                if (!cpu_online(i))
-                        continue;
+        for_each_online_cpu(i) {
                 if (i != CPU_TO_PACKAGEINDEX(i))
                         continue;
                 if (max_cpu_irq <= CPU_IRQ(i)) 
@@ -619,9 +615,7 @@ static int __init balanced_irq_init(void)
         if (smp_num_siblings > 1 && !cpus_empty(tmp))
                 physical_balance = 1;
 
-        for (i = 0; i < NR_CPUS; i++) {
-                if (!cpu_online(i))
-                        continue;
+        for_each_online_cpu(i) {
                 irq_cpu_data[i].irq_delta = kmalloc(sizeof(unsigned long) * NR_IRQS, GFP_KERNEL);
                 irq_cpu_data[i].last_irq = kmalloc(sizeof(unsigned long) * NR_IRQS, GFP_KERNEL);
                 if (irq_cpu_data[i].irq_delta == NULL || irq_cpu_data[i].last_irq == NULL) {
@@ -638,9 +632,11 @@ static int __init balanced_irq_init(void)
         else 
                 printk(KERN_ERR "balanced_irq_init: failed to spawn balanced_irq");
 failed:
-        for (i = 0; i < NR_CPUS; i++) {
+        for_each_possible_cpu(i) {
                 kfree(irq_cpu_data[i].irq_delta);
+                irq_cpu_data[i].irq_delta = NULL;
                 kfree(irq_cpu_data[i].last_irq);
+                irq_cpu_data[i].last_irq = NULL;
         }
         return 0;
 }
@@ -648,7 +644,7 @@ failed:
 int __init irqbalance_disable(char *str)
 {
         irqbalance_disabled = 1;
-        return 0;
+        return 1;
 }
 
 __setup("noirqbalance", irqbalance_disable);
@@ -1761,7 +1757,8 @@ static void __init setup_ioapic_ids_from_mpc(void)
          * Don't check I/O APIC IDs for xAPIC systems.  They have
          * no meaning without the serial APIC bus.
          */
-        if (!(boot_cpu_data.x86_vendor == X86_VENDOR_INTEL && boot_cpu_data.x86 < 15))
+        if (!(boot_cpu_data.x86_vendor == X86_VENDOR_INTEL)
+                || APIC_XAPIC(apic_version[boot_cpu_physical_apicid]))
                 return;
         /*
          * This is broken; anything with a real cpu count has to
diff --git a/arch/i386/kernel/kprobes.c b/arch/i386/kernel/kprobes.c
index 694a13997637..f19768789e8a 100644
--- a/arch/i386/kernel/kprobes.c
+++ b/arch/i386/kernel/kprobes.c
@@ -35,12 +35,56 @@
 #include <asm/cacheflush.h>
 #include <asm/kdebug.h>
 #include <asm/desc.h>
+#include <asm/uaccess.h>
 
 void jprobe_return_end(void);
 
 DEFINE_PER_CPU(struct kprobe *, current_kprobe) = NULL;
 DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk);
 
+/* insert a jmp code */
+static inline void set_jmp_op(void *from, void *to)
+{
+        struct __arch_jmp_op {
+                char op;
+                long raddr;
+        } __attribute__((packed)) *jop;
+        jop = (struct __arch_jmp_op *)from;
+        jop->raddr = (long)(to) - ((long)(from) + 5);
+        jop->op = RELATIVEJUMP_INSTRUCTION;
+}
+
+/*
+ * returns non-zero if opcodes can be boosted.
+ */
+static inline int can_boost(kprobe_opcode_t opcode)
+{
+        switch (opcode & 0xf0 ) {
+        case 0x70:
+                return 0; /* can't boost conditional jump */
+        case 0x90:
+                /* can't boost call and pushf */
+                return opcode != 0x9a && opcode != 0x9c;
+        case 0xc0:
+                /* can't boost undefined opcodes and soft-interruptions */
+                return (0xc1 < opcode && opcode < 0xc6) ||
+                        (0xc7 < opcode && opcode < 0xcc) || opcode == 0xcf;
+        case 0xd0:
+                /* can boost AA* and XLAT */
+                return (opcode == 0xd4 || opcode == 0xd5 || opcode == 0xd7);
+        case 0xe0:
+                /* can boost in/out and (may be) jmps */
+                return (0xe3 < opcode && opcode != 0xe8);
+        case 0xf0:
+                /* clear and set flags can be boost */
+                return (opcode == 0xf5 || (0xf7 < opcode && opcode < 0xfe));
+        default:
+                /* currently, can't boost 2 bytes opcodes */
+                return opcode != 0x0f;
+        }
+}
+
+
 /*
  * returns non-zero if opcode modifies the interrupt flag.
  */
@@ -65,6 +109,11 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p)
 
         memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
         p->opcode = *p->addr;
+        if (can_boost(p->opcode)) {
+                p->ainsn.boostable = 0;
+        } else {
+                p->ainsn.boostable = -1;
+        }
         return 0;
 }
 
@@ -84,9 +133,9 @@ void __kprobes arch_disarm_kprobe(struct kprobe *p)
 
 void __kprobes arch_remove_kprobe(struct kprobe *p)
 {
-        down(&kprobe_mutex);
+        mutex_lock(&kprobe_mutex);
         free_insn_slot(p->ainsn.insn);
-        up(&kprobe_mutex);
+        mutex_unlock(&kprobe_mutex);
 }
 
 static inline void save_previous_kprobe(struct kprobe_ctlblk *kcb)
@@ -155,9 +204,13 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
 {
         struct kprobe *p;
         int ret = 0;
-        kprobe_opcode_t *addr = NULL;
-        unsigned long *lp;
+        kprobe_opcode_t *addr;
         struct kprobe_ctlblk *kcb;
+#ifdef CONFIG_PREEMPT
+        unsigned pre_preempt_count = preempt_count();
+#endif /* CONFIG_PREEMPT */
+
+        addr = (kprobe_opcode_t *)(regs->eip - sizeof(kprobe_opcode_t));
 
         /*
          * We don't want to be preempted for the entire
@@ -166,17 +219,6 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
         preempt_disable();
         kcb = get_kprobe_ctlblk();
 
-        /* Check if the application is using LDT entry for its code segment and
-         * calculate the address by reading the base address from the LDT entry.
-         */
-        if ((regs->xcs & 4) && (current->mm)) {
-                lp = (unsigned long *) ((unsigned long)((regs->xcs >> 3) * 8)
-                                        + (char *) current->mm->context.ldt);
-                addr = (kprobe_opcode_t *) (get_desc_base(lp) + regs->eip -
-                                                sizeof(kprobe_opcode_t));
-        } else {
-                addr = (kprobe_opcode_t *)(regs->eip - sizeof(kprobe_opcode_t));
-        }
         /* Check we're not actually recursing */
         if (kprobe_running()) {
                 p = get_kprobe(addr);
@@ -252,6 +294,21 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
                 /* handler has already set things up, so skip ss setup */
                 return 1;
 
+        if (p->ainsn.boostable == 1 &&
+#ifdef CONFIG_PREEMPT
+            !(pre_preempt_count) && /*
+                                       * This enables booster when the direct
+                                       * execution path aren't preempted.
+                                       */
+#endif /* CONFIG_PREEMPT */
+            !p->post_handler && !p->break_handler ) {
+                /* Boost up -- we can execute copied instructions directly */
+                reset_current_kprobe();
+                regs->eip = (unsigned long)p->ainsn.insn;
+                preempt_enable_no_resched();
+                return 1;
+        }
+
 ss_probe:
         prepare_singlestep(p, regs);
         kcb->kprobe_status = KPROBE_HIT_SS;
@@ -267,17 +324,44 @@ no_kprobe:
  * here. When a retprobed function returns, this probe is hit and
  * trampoline_probe_handler() runs, calling the kretprobe's handler.
  */
- void kretprobe_trampoline_holder(void)
+ void __kprobes kretprobe_trampoline_holder(void)
  {
-        asm volatile (  ".global kretprobe_trampoline\n"
+        asm volatile ( ".global kretprobe_trampoline\n"
                         "kretprobe_trampoline: \n"
-                        "nop\n");
- }
+                        "       pushf\n"
+                        /* skip cs, eip, orig_eax, es, ds */
+                        "       subl $20, %esp\n"
+                        "       pushl %eax\n"
+                        "       pushl %ebp\n"
+                        "       pushl %edi\n"
+                        "       pushl %esi\n"
+                        "       pushl %edx\n"
+                        "       pushl %ecx\n"
+                        "       pushl %ebx\n"
+                        "       movl %esp, %eax\n"
+                        "       call trampoline_handler\n"
+                        /* move eflags to cs */
+                        "       movl 48(%esp), %edx\n"
+                        "       movl %edx, 44(%esp)\n"
+                        /* save true return address on eflags */
+                        "       movl %eax, 48(%esp)\n"
+                        "       popl %ebx\n"
+                        "       popl %ecx\n"
+                        "       popl %edx\n"
+                        "       popl %esi\n"
+                        "       popl %edi\n"
+                        "       popl %ebp\n"
+                        "       popl %eax\n"
+                        /* skip eip, orig_eax, es, ds */
+                        "       addl $16, %esp\n"
+                        "       popf\n"
+                        "       ret\n");
+}
 
 /*
- * Called when we hit the probe point at kretprobe_trampoline
+ * Called from kretprobe_trampoline
  */
-int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
+fastcall void *__kprobes trampoline_handler(struct pt_regs *regs)
 {
         struct kretprobe_instance *ri = NULL;
         struct hlist_head *head;
@@ -306,8 +390,11 @@ int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
                         /* another task is sharing our hash bucket */
                         continue;
 
-                if (ri->rp && ri->rp->handler)
+                if (ri->rp && ri->rp->handler){
+                        __get_cpu_var(current_kprobe) = &ri->rp->kp;
                         ri->rp->handler(ri, regs);
+                        __get_cpu_var(current_kprobe) = NULL;
+                }
 
                 orig_ret_address = (unsigned long)ri->ret_addr;
                 recycle_rp_inst(ri);
@@ -322,18 +409,10 @@ int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
         }
 
         BUG_ON(!orig_ret_address || (orig_ret_address == trampoline_address));
-        regs->eip = orig_ret_address;
 
-        reset_current_kprobe();
         spin_unlock_irqrestore(&kretprobe_lock, flags);
-        preempt_enable_no_resched();
 
-        /*
-         * By returning a non-zero value, we are telling
-         * kprobe_handler() that we don't want the post_handler
-         * to run (and have re-enabled preemption)
-         */
-        return 1;
+        return (void*)orig_ret_address;
 }
 
 /*
@@ -357,15 +436,17 @@ int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
  * 2) If the single-stepped instruction was a call, the return address
  * that is atop the stack is the address following the copied instruction.
  * We need to make it the address following the original instruction.
+ *
+ * This function also checks instruction size for preparing direct execution.
  */
 static void __kprobes resume_execution(struct kprobe *p,
                 struct pt_regs *regs, struct kprobe_ctlblk *kcb)
 {
         unsigned long *tos = (unsigned long *)&regs->esp;
-        unsigned long next_eip = 0;
         unsigned long copy_eip = (unsigned long)p->ainsn.insn;
         unsigned long orig_eip = (unsigned long)p->addr;
 
+        regs->eflags &= ~TF_MASK;
         switch (p->ainsn.insn[0]) {
         case 0x9c:              /* pushfl */
                 *tos &= ~(TF_MASK | IF_MASK);
@@ -375,37 +456,51 @@ static void __kprobes resume_execution(struct kprobe *p,
         case 0xcb:
         case 0xc2:
         case 0xca:
-                regs->eflags &= ~TF_MASK;
-                /* eip is already adjusted, no more changes required*/
-                return;
+        case 0xea:              /* jmp absolute -- eip is correct */
+                /* eip is already adjusted, no more changes required */
+                p->ainsn.boostable = 1;
+                goto no_change;
         case 0xe8:              /* call relative - Fix return addr */
                 *tos = orig_eip + (*tos - copy_eip);
                 break;
         case 0xff:
                 if ((p->ainsn.insn[1] & 0x30) == 0x10) {
                         /* call absolute, indirect */
-                        /* Fix return addr; eip is correct. */
-                        next_eip = regs->eip;
+                        /*
+                         * Fix return addr; eip is correct.
+                         * But this is not boostable
+                         */
                         *tos = orig_eip + (*tos - copy_eip);
+                        goto no_change;
                 } else if (((p->ainsn.insn[1] & 0x31) == 0x20) ||       /* jmp near, absolute indirect */
                            ((p->ainsn.insn[1] & 0x31) == 0x21)) {       /* jmp far, absolute indirect */
-                        /* eip is correct. */
-                        next_eip = regs->eip;
+                        /* eip is correct. And this is boostable */
+                        p->ainsn.boostable = 1;
+                        goto no_change;
                 }
-                break;
-        case 0xea:              /* jmp absolute -- eip is correct */
-                next_eip = regs->eip;
-                break;
         default:
                 break;
         }
 
-        regs->eflags &= ~TF_MASK;
-        if (next_eip) {
-                regs->eip = next_eip;
-        } else {
-                regs->eip = orig_eip + (regs->eip - copy_eip);
+        if (p->ainsn.boostable == 0) {
+                if ((regs->eip > copy_eip) &&
+                    (regs->eip - copy_eip) + 5 < MAX_INSN_SIZE) {
+                        /*
+                         * These instructions can be executed directly if it
+                         * jumps back to correct address.
+                         */
+                        set_jmp_op((void *)regs->eip,
+                                   (void *)orig_eip + (regs->eip - copy_eip));
+                        p->ainsn.boostable = 1;
+                } else {
+                        p->ainsn.boostable = -1;
+                }
         }
+
+        regs->eip = orig_eip + (regs->eip - copy_eip);
+
+no_change:
+        return;
 }
 
 /*
@@ -453,15 +548,57 @@ static inline int kprobe_fault_handler(struct pt_regs *regs, int trapnr)
         struct kprobe *cur = kprobe_running();
         struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
 
-        if (cur->fault_handler && cur->fault_handler(cur, regs, trapnr))
-                return 1;
-
-        if (kcb->kprobe_status & KPROBE_HIT_SS) {
-                resume_execution(cur, regs, kcb);
+        switch(kcb->kprobe_status) {
+        case KPROBE_HIT_SS:
+        case KPROBE_REENTER:
+                /*
+                 * We are here because the instruction being single
+                 * stepped caused a page fault. We reset the current
+                 * kprobe and the eip points back to the probe address
+                 * and allow the page fault handler to continue as a
+                 * normal page fault.
+                 */
+                regs->eip = (unsigned long)cur->addr;
                 regs->eflags |= kcb->kprobe_old_eflags;
-
-                reset_current_kprobe();
+                if (kcb->kprobe_status == KPROBE_REENTER)
+                        restore_previous_kprobe(kcb);
+                else
+                        reset_current_kprobe();
                 preempt_enable_no_resched();
+                break;
+        case KPROBE_HIT_ACTIVE:
+        case KPROBE_HIT_SSDONE:
+                /*
+                 * We increment the nmissed count for accounting,
+                 * we can also use npre/npostfault count for accouting
+                 * these specific fault cases.
+                 */
+                kprobes_inc_nmissed_count(cur);
+
+                /*
+                 * We come here because instructions in the pre/post
+                 * handler caused the page_fault, this could happen
+                 * if handler tries to access user space by
+                 * copy_from_user(), get_user() etc. Let the
+                 * user-specified handler try to fix it first.
+                 */
+                if (cur->fault_handler && cur->fault_handler(cur, regs, trapnr))
+                        return 1;
+
+                /*
+                 * In case the user-specified fault handler returned
+                 * zero, try to fix up.
+                 */
+                if (fixup_exception(regs))
+                        return 1;
+
+                /*
+                 * fixup_exception() could not handle it,
+                 * Let do_page_fault() fix it.
+                 */
+                break;
+        default:
+                break;
         }
         return 0;
 }
@@ -475,6 +612,9 @@ int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
         struct die_args *args = (struct die_args *)data;
         int ret = NOTIFY_DONE;
 
+        if (args->regs && user_mode(args->regs))
+                return ret;
+
         switch (val) {
         case DIE_INT3:
                 if (kprobe_handler(args->regs))
@@ -564,12 +704,7 @@ int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
         return 0;
 }
 
-static struct kprobe trampoline_p = {
-        .addr = (kprobe_opcode_t *) &kretprobe_trampoline,
-        .pre_handler = trampoline_probe_handler
-};
-
 int __init arch_init_kprobes(void)
 {
-        return register_kprobe(&trampoline_p);
+        return 0;
 }
diff --git a/arch/i386/kernel/microcode.c b/arch/i386/kernel/microcode.c
index 5390b521aca0..e7c138f66c5a 100644
--- a/arch/i386/kernel/microcode.c
+++ b/arch/i386/kernel/microcode.c
@@ -81,6 +81,7 @@
 #include <linux/miscdevice.h>
 #include <linux/spinlock.h>
 #include <linux/mm.h>
+#include <linux/mutex.h>
 
 #include <asm/msr.h>
 #include <asm/uaccess.h>
@@ -114,7 +115,7 @@ MODULE_LICENSE("GPL");
 static DEFINE_SPINLOCK(microcode_update_lock);
 
 /* no concurrent ->write()s are allowed on /dev/cpu/microcode */
-static DECLARE_MUTEX(microcode_sem);
+static DEFINE_MUTEX(microcode_mutex);
 
 static void __user *user_buffer;        /* user area microcode data buffer */
 static unsigned int user_buffer_size;   /* it's size */
@@ -202,8 +203,6 @@ static inline void mark_microcode_update (int cpu_num, microcode_header_t *mc_he
         } else if (mc_header->rev == uci->rev) {
                 /* notify the caller of success on this cpu */
                 uci->err = MC_SUCCESS;
-                printk(KERN_ERR "microcode: CPU%d already at revision"
-                        " 0x%x (current=0x%x)\n", cpu_num, mc_header->rev, uci->rev);
                 goto out;
         }
 
@@ -369,7 +368,6 @@ static void do_update_one (void * unused)
         struct ucode_cpu_info *uci = ucode_cpu_info + cpu_num;
 
         if (uci->mc == NULL) {
-                printk(KERN_INFO "microcode: No new microcode data for CPU%d\n", cpu_num);
                 return;
         }
 
@@ -447,7 +445,7 @@ static ssize_t microcode_write (struct file *file, const char __user *buf, size_
                 return -EINVAL;
         }
 
-        down(&microcode_sem);
+        mutex_lock(&microcode_mutex);
 
         user_buffer = (void __user *) buf;
         user_buffer_size = (int) len;
@@ -456,31 +454,14 @@ static ssize_t microcode_write (struct file *file, const char __user *buf, size_
         if (!ret)
                 ret = (ssize_t)len;
 
-        up(&microcode_sem);
+        mutex_unlock(&microcode_mutex);
 
         return ret;
 }
 
-static int microcode_ioctl (struct inode *inode, struct file *file, 
-                unsigned int cmd, unsigned long arg)
-{
-        switch (cmd) {
-                /* 
-                 *  XXX: will be removed after microcode_ctl 
-                 *  is updated to ignore failure of this ioctl()
-                 */
-                case MICROCODE_IOCFREE:
-                        return 0;
-                default:
-                        return -EINVAL;
-        }
-        return -EINVAL;
-}
-
 static struct file_operations microcode_fops = {
         .owner          = THIS_MODULE,
         .write          = microcode_write,
-        .ioctl          = microcode_ioctl,
         .open           = microcode_open,
 };
 
@@ -511,7 +492,6 @@ static int __init microcode_init (void)
 static void __exit microcode_exit (void)
 {
         misc_deregister(&microcode_dev);
-        printk(KERN_INFO "IA-32 Microcode Update Driver v" MICROCODE_VERSION " unregistered\n");
 }
 
 module_init(microcode_init)
diff --git a/arch/i386/kernel/module.c b/arch/i386/kernel/module.c
index 5149c8a621f0..470cf97e7cd3 100644
--- a/arch/i386/kernel/module.c
+++ b/arch/i386/kernel/module.c
@@ -104,26 +104,38 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
         return -ENOEXEC;
 }
 
-extern void apply_alternatives(void *start, void *end); 
-
 int module_finalize(const Elf_Ehdr *hdr,
                     const Elf_Shdr *sechdrs,
                     struct module *me)
 {
-        const Elf_Shdr *s;
+        const Elf_Shdr *s, *text = NULL, *alt = NULL, *locks = NULL;
         char *secstrings = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
 
-        /* look for .altinstructions to patch */ 
         for (s = sechdrs; s < sechdrs + hdr->e_shnum; s++) { 
-                void *seg;              
-                if (strcmp(".altinstructions", secstrings + s->sh_name))
-                        continue;
-                seg = (void *)s->sh_addr; 
-                apply_alternatives(seg, seg + s->sh_size); 
-        }       
+                if (!strcmp(".text", secstrings + s->sh_name))
+                        text = s;
+                if (!strcmp(".altinstructions", secstrings + s->sh_name))
+                        alt = s;
+                if (!strcmp(".smp_locks", secstrings + s->sh_name))
+                        locks= s;
+        }
+
+        if (alt) {
+                /* patch .altinstructions */
+                void *aseg = (void *)alt->sh_addr;
+                apply_alternatives(aseg, aseg + alt->sh_size);
+        }
+        if (locks && text) {
+                void *lseg = (void *)locks->sh_addr;
+                void *tseg = (void *)text->sh_addr;
+                alternatives_smp_module_add(me, me->name,
+                                            lseg, lseg + locks->sh_size,
+                                            tseg, tseg + text->sh_size);
+        }
         return 0;
 }
 
 void module_arch_cleanup(struct module *mod)
 {
+        alternatives_smp_module_del(mod);
 }
diff --git a/arch/i386/kernel/mpparse.c b/arch/i386/kernel/mpparse.c
index e6e2f43db85e..8d8aa9d1796d 100644
--- a/arch/i386/kernel/mpparse.c
+++ b/arch/i386/kernel/mpparse.c
@@ -828,6 +828,8 @@ void __init find_smp_config (void)
                 smp_scan_config(address, 0x400);
 }
 
+int es7000_plat;
+
 /* --------------------------------------------------------------------------
                             ACPI-based MP Configuration
    -------------------------------------------------------------------------- */
@@ -935,7 +937,8 @@ void __init mp_register_ioapic (
         mp_ioapics[idx].mpc_apicaddr = address;
 
         set_fixmap_nocache(FIX_IO_APIC_BASE_0 + idx, address);
-        if ((boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) && (boot_cpu_data.x86 < 15))
+        if ((boot_cpu_data.x86_vendor == X86_VENDOR_INTEL)
+                && !APIC_XAPIC(apic_version[boot_cpu_physical_apicid]))
                 tmpid = io_apic_get_unique_id(idx, id);
         else
                 tmpid = id;
@@ -1011,8 +1014,6 @@ void __init mp_override_legacy_irq (
         return;
 }
 
-int es7000_plat;
-
 void __init mp_config_acpi_legacy_irqs (void)
 {
         struct mpc_config_intsrc intsrc;
diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c
index be87c5e2ee95..d43b498ec745 100644
--- a/arch/i386/kernel/nmi.c
+++ b/arch/i386/kernel/nmi.c
@@ -138,12 +138,12 @@ static int __init check_nmi_watchdog(void)
         if (nmi_watchdog == NMI_LOCAL_APIC)
                 smp_call_function(nmi_cpu_busy, (void *)&endflag, 0, 0);
 
-        for_each_cpu(cpu)
+        for_each_possible_cpu(cpu)
                 prev_nmi_count[cpu] = per_cpu(irq_stat, cpu).__nmi_count;
         local_irq_enable();
         mdelay((10*1000)/nmi_hz); // wait 10 ticks
 
-        for (cpu = 0; cpu < NR_CPUS; cpu++) {
+        for_each_possible_cpu(cpu) {
 #ifdef CONFIG_SMP
                 /* Check cpu_callin_map here because that is set
                    after the timer is started. */
@@ -510,7 +510,7 @@ void touch_nmi_watchdog (void)
          * Just reset the alert counters, (other CPUs might be
          * spinning on locks we hold):
          */
-        for (i = 0; i < NR_CPUS; i++)
+        for_each_possible_cpu(i)
                 alert_counter[i] = 0;
 
         /*
@@ -529,7 +529,8 @@ void nmi_watchdog_tick (struct pt_regs * regs)
          * always switch the stack NMI-atomically, it's safe to use
          * smp_processor_id().
          */
-        int sum, cpu = smp_processor_id();
+        unsigned int sum;
+        int cpu = smp_processor_id();
 
         sum = per_cpu(irq_stat, cpu).apic_timer_irqs;
 
@@ -543,7 +544,7 @@ void nmi_watchdog_tick (struct pt_regs * regs)
                         /*
                          * die_nmi will return ONLY if NOTIFY_STOP happens..
                          */
-                        die_nmi(regs, "NMI Watchdog detected LOCKUP");
+                        die_nmi(regs, "BUG: NMI Watchdog detected LOCKUP");
         } else {
                 last_irq_sums[cpu] = sum;
                 alert_counter[cpu] = 0;
diff --git a/arch/i386/kernel/process.c b/arch/i386/kernel/process.c
index 0480454ebffa..6259afea46d1 100644
--- a/arch/i386/kernel/process.c
+++ b/arch/i386/kernel/process.c
@@ -38,7 +38,6 @@
 #include <linux/kallsyms.h>
 #include <linux/ptrace.h>
 #include <linux/random.h>
-#include <linux/kprobes.h>
 
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
@@ -295,7 +294,7 @@ void show_regs(struct pt_regs * regs)
         printk("EIP: %04x:[<%08lx>] CPU: %d\n",0xffff & regs->xcs,regs->eip, smp_processor_id());
         print_symbol("EIP is at %s\n", regs->eip);
 
-        if (user_mode(regs))
+        if (user_mode_vm(regs))
                 printk(" ESP: %04x:%08lx",0xffff & regs->xss,regs->esp);
         printk(" EFLAGS: %08lx    %s  (%s %.*s)\n",
                regs->eflags, print_tainted(), system_utsname.release,
@@ -364,13 +363,6 @@ void exit_thread(void)
         struct task_struct *tsk = current;
         struct thread_struct *t = &tsk->thread;
 
-        /*
-         * Remove function-return probe instances associated with this task
-         * and put them back on the free list. Do not insert an exit probe for
-         * this function, it will be disabled by kprobe_flush_task if you do.
-         */
-        kprobe_flush_task(tsk);
-
         /* The process may have allocated an io port bitmap... nuke it. */
         if (unlikely(NULL != t->io_bitmap_ptr)) {
                 int cpu = get_cpu();
@@ -789,7 +781,6 @@ unsigned long get_wchan(struct task_struct *p)
         } while (count++ < 16);
         return 0;
 }
-EXPORT_SYMBOL(get_wchan);
 
 /*
  * sys_alloc_thread_area: get a yet unused TLS descriptor index.
diff --git a/arch/i386/kernel/ptrace.c b/arch/i386/kernel/ptrace.c
index 5c1fb6aada5b..506462ef36a0 100644
--- a/arch/i386/kernel/ptrace.c
+++ b/arch/i386/kernel/ptrace.c
@@ -34,10 +34,10 @@
 
 /*
  * Determines which flags the user has access to [1 = access, 0 = no access].
- * Prohibits changing ID(21), VIP(20), VIF(19), VM(17), IOPL(12-13), IF(9).
+ * Prohibits changing ID(21), VIP(20), VIF(19), VM(17), NT(14), IOPL(12-13), IF(9).
  * Also masks reserved bits (31-22, 15, 5, 3, 1).
  */
-#define FLAG_MASK 0x00054dd5
+#define FLAG_MASK 0x00050dd5
 
 /* set's the trap flag. */
 #define TRAP_FLAG 0x100
diff --git a/arch/i386/kernel/semaphore.c b/arch/i386/kernel/semaphore.c
index 7455ab643943..967dc74df9ee 100644
--- a/arch/i386/kernel/semaphore.c
+++ b/arch/i386/kernel/semaphore.c
@@ -110,11 +110,11 @@ asm(
 ".align 4\n"
 ".globl __write_lock_failed\n"
 "__write_lock_failed:\n\t"
-        LOCK "addl      $" RW_LOCK_BIAS_STR ",(%eax)\n"
+        LOCK_PREFIX "addl       $" RW_LOCK_BIAS_STR ",(%eax)\n"
 "1:     rep; nop\n\t"
         "cmpl   $" RW_LOCK_BIAS_STR ",(%eax)\n\t"
         "jne    1b\n\t"
-        LOCK "subl      $" RW_LOCK_BIAS_STR ",(%eax)\n\t"
+        LOCK_PREFIX "subl       $" RW_LOCK_BIAS_STR ",(%eax)\n\t"
         "jnz    __write_lock_failed\n\t"
         "ret"
 );
@@ -124,11 +124,11 @@ asm(
 ".align 4\n"
 ".globl __read_lock_failed\n"
 "__read_lock_failed:\n\t"
-        LOCK "incl      (%eax)\n"
+        LOCK_PREFIX "incl       (%eax)\n"
 "1:     rep; nop\n\t"
         "cmpl   $1,(%eax)\n\t"
         "js     1b\n\t"
-        LOCK "decl      (%eax)\n\t"
+        LOCK_PREFIX "decl       (%eax)\n\t"
         "js     __read_lock_failed\n\t"
         "ret"
 );
diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c
index a0b407585679..eacc3f0a2ea4 100644
--- a/arch/i386/kernel/setup.c
+++ b/arch/i386/kernel/setup.c
@@ -47,6 +47,7 @@
 #include <linux/kexec.h>
 #include <linux/crash_dump.h>
 #include <linux/dmi.h>
+#include <linux/pfn.h>
 
 #include <video/edid.h>
 
@@ -1059,10 +1060,10 @@ static int __init
 free_available_memory(unsigned long start, unsigned long end, void *arg)
 {
         /* check max_low_pfn */
-        if (start >= ((max_low_pfn + 1) << PAGE_SHIFT))
+        if (start >= (max_low_pfn << PAGE_SHIFT))
                 return 0;
-        if (end >= ((max_low_pfn + 1) << PAGE_SHIFT))
-                end = (max_low_pfn + 1) << PAGE_SHIFT;
+        if (end >= (max_low_pfn << PAGE_SHIFT))
+                end = max_low_pfn << PAGE_SHIFT;
         if (start < end)
                 free_bootmem(start, end - start);
 
@@ -1287,9 +1288,7 @@ legacy_init_iomem_resources(struct resource *code_resource, struct resource *dat
         probe_roms();
         for (i = 0; i < e820.nr_map; i++) {
                 struct resource *res;
-                if (e820.map[i].addr + e820.map[i].size > 0x100000000ULL)
-                        continue;
-                res = alloc_bootmem_low(sizeof(struct resource));
+                res = kzalloc(sizeof(struct resource), GFP_ATOMIC);
                 switch (e820.map[i].type) {
                 case E820_RAM:  res->name = "System RAM"; break;
                 case E820_ACPI: res->name = "ACPI Tables"; break;
@@ -1317,13 +1316,15 @@ legacy_init_iomem_resources(struct resource *code_resource, struct resource *dat
 
 /*
  * Request address space for all standard resources
+ *
+ * This is called just before pcibios_assign_resources(), which is also
+ * an fs_initcall, but is linked in later (in arch/i386/pci/i386.c).
  */
-static void __init register_memory(void)
+static int __init request_standard_resources(void)
 {
-        unsigned long gapstart, gapsize, round;
-        unsigned long long last;
-        int           i;
+        int i;
 
+        printk("Setting up standard PCI resources\n");
         if (efi_enabled)
                 efi_initialize_iomem_resources(&code_resource, &data_resource);
         else
@@ -1335,6 +1336,16 @@ static void __init register_memory(void)
         /* request I/O space for devices used on all i[345]86 PCs */
         for (i = 0; i < STANDARD_IO_RESOURCES; i++)
                 request_resource(&ioport_resource, &standard_io_resources[i]);
+        return 0;
+}
+
+fs_initcall(request_standard_resources);
+
+static void __init register_memory(void)
+{
+        unsigned long gapstart, gapsize, round;
+        unsigned long long last;
+        int i;
 
         /*
          * Search for the bigest gap in the low 32 bits of the e820
@@ -1378,101 +1389,6 @@ static void __init register_memory(void)
                 pci_mem_start, gapstart, gapsize);
 }
 
-/* Use inline assembly to define this because the nops are defined 
-   as inline assembly strings in the include files and we cannot 
-   get them easily into strings. */
-asm("\t.data\nintelnops: " 
-    GENERIC_NOP1 GENERIC_NOP2 GENERIC_NOP3 GENERIC_NOP4 GENERIC_NOP5 GENERIC_NOP6
-    GENERIC_NOP7 GENERIC_NOP8); 
-asm("\t.data\nk8nops: " 
-    K8_NOP1 K8_NOP2 K8_NOP3 K8_NOP4 K8_NOP5 K8_NOP6
-    K8_NOP7 K8_NOP8); 
-asm("\t.data\nk7nops: " 
-    K7_NOP1 K7_NOP2 K7_NOP3 K7_NOP4 K7_NOP5 K7_NOP6
-    K7_NOP7 K7_NOP8); 
-    
-extern unsigned char intelnops[], k8nops[], k7nops[];
-static unsigned char *intel_nops[ASM_NOP_MAX+1] = { 
-     NULL,
-     intelnops,
-     intelnops + 1,
-     intelnops + 1 + 2,
-     intelnops + 1 + 2 + 3,
-     intelnops + 1 + 2 + 3 + 4,
-     intelnops + 1 + 2 + 3 + 4 + 5,
-     intelnops + 1 + 2 + 3 + 4 + 5 + 6,
-     intelnops + 1 + 2 + 3 + 4 + 5 + 6 + 7,
-}; 
-static unsigned char *k8_nops[ASM_NOP_MAX+1] = { 
-     NULL,
-     k8nops,
-     k8nops + 1,
-     k8nops + 1 + 2,
-     k8nops + 1 + 2 + 3,
-     k8nops + 1 + 2 + 3 + 4,
-     k8nops + 1 + 2 + 3 + 4 + 5,
-     k8nops + 1 + 2 + 3 + 4 + 5 + 6,
-     k8nops + 1 + 2 + 3 + 4 + 5 + 6 + 7,
-}; 
-static unsigned char *k7_nops[ASM_NOP_MAX+1] = { 
-     NULL,
-     k7nops,
-     k7nops + 1,
-     k7nops + 1 + 2,
-     k7nops + 1 + 2 + 3,
-     k7nops + 1 + 2 + 3 + 4,
-     k7nops + 1 + 2 + 3 + 4 + 5,
-     k7nops + 1 + 2 + 3 + 4 + 5 + 6,
-     k7nops + 1 + 2 + 3 + 4 + 5 + 6 + 7,
-}; 
-static struct nop { 
-     int cpuid; 
-     unsigned char **noptable; 
-} noptypes[] = { 
-     { X86_FEATURE_K8, k8_nops }, 
-     { X86_FEATURE_K7, k7_nops }, 
-     { -1, NULL }
-}; 
-
-/* Replace instructions with better alternatives for this CPU type.
-
-   This runs before SMP is initialized to avoid SMP problems with
-   self modifying code. This implies that assymetric systems where
-   APs have less capabilities than the boot processor are not handled. 
-   Tough. Make sure you disable such features by hand. */ 
-void apply_alternatives(void *start, void *end) 
-{ 
-        struct alt_instr *a; 
-        int diff, i, k;
-        unsigned char **noptable = intel_nops; 
-        for (i = 0; noptypes[i].cpuid >= 0; i++) { 
-                if (boot_cpu_has(noptypes[i].cpuid)) { 
-                        noptable = noptypes[i].noptable;
-                        break;
-                }
-        } 
-        for (a = start; (void *)a < end; a++) { 
-                if (!boot_cpu_has(a->cpuid))
-                        continue;
-                BUG_ON(a->replacementlen > a->instrlen); 
-                memcpy(a->instr, a->replacement, a->replacementlen); 
-                diff = a->instrlen - a->replacementlen; 
-                /* Pad the rest with nops */
-                for (i = a->replacementlen; diff > 0; diff -= k, i += k) {
-                        k = diff;
-                        if (k > ASM_NOP_MAX)
-                                k = ASM_NOP_MAX;
-                        memcpy(a->instr + i, noptable[k], k); 
-                } 
-        }
-} 
-
-void __init alternative_instructions(void)
-{
-        extern struct alt_instr __alt_instructions[], __alt_instructions_end[];
-        apply_alternatives(__alt_instructions, __alt_instructions_end);
-}
-
 static char * __init machine_specific_memory_setup(void);
 
 #ifdef CONFIG_MCA
@@ -1555,6 +1471,16 @@ void __init setup_arch(char **cmdline_p)
 
         parse_cmdline_early(cmdline_p);
 
+#ifdef CONFIG_EARLY_PRINTK
+        {
+                char *s = strstr(*cmdline_p, "earlyprintk=");
+                if (s) {
+                        setup_early_printk(strchr(s, '=') + 1);
+                        printk("early console enabled\n");
+                }
+        }
+#endif
+
         max_low_pfn = setup_memory();
 
         /*
@@ -1579,19 +1505,6 @@ void __init setup_arch(char **cmdline_p)
          * NOTE: at this point the bootmem allocator is fully available.
          */
 
-#ifdef CONFIG_EARLY_PRINTK
-        {
-                char *s = strstr(*cmdline_p, "earlyprintk=");
-                if (s) {
-                        extern void setup_early_printk(char *);
-
-                        setup_early_printk(strchr(s, '=') + 1);
-                        printk("early console enabled\n");
-                }
-        }
-#endif
-
-
         dmi_scan_machine();
 
 #ifdef CONFIG_X86_GENERICARCH
diff --git a/arch/i386/kernel/signal.c b/arch/i386/kernel/signal.c
index 963616d364ec..5c352c3a9e7f 100644
--- a/arch/i386/kernel/signal.c
+++ b/arch/i386/kernel/signal.c
@@ -123,7 +123,8 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, int *peax
           err |= __get_user(tmp, &sc->seg);                             \
           loadsegment(seg,tmp); }
 
-#define FIX_EFLAGS      (X86_EFLAGS_AC | X86_EFLAGS_OF | X86_EFLAGS_DF | \
+#define FIX_EFLAGS      (X86_EFLAGS_AC | X86_EFLAGS_RF |                 \
+                         X86_EFLAGS_OF | X86_EFLAGS_DF |                 \
                          X86_EFLAGS_TF | X86_EFLAGS_SF | X86_EFLAGS_ZF | \
                          X86_EFLAGS_AF | X86_EFLAGS_PF | X86_EFLAGS_CF)
 
@@ -582,9 +583,6 @@ static void fastcall do_signal(struct pt_regs *regs)
         if (!user_mode(regs))
                 return;
 
-        if (try_to_freeze())
-                goto no_signal;
-
         if (test_thread_flag(TIF_RESTORE_SIGMASK))
                 oldset = &current->saved_sigmask;
         else
@@ -613,7 +611,6 @@ static void fastcall do_signal(struct pt_regs *regs)
                 return;
         }
 
-no_signal:
         /* Did we come from a system call? */
         if (regs->orig_eax >= 0) {
                 /* Restart the system call - no handlers present */
diff --git a/arch/i386/kernel/smp.c b/arch/i386/kernel/smp.c
index 218d725a5a1e..d134e9643a58 100644
--- a/arch/i386/kernel/smp.c
+++ b/arch/i386/kernel/smp.c
@@ -504,27 +504,23 @@ void unlock_ipi_call_lock(void)
         spin_unlock_irq(&call_lock);
 }
 
-static struct call_data_struct * call_data;
-
-/*
- * this function sends a 'generic call function' IPI to all other CPUs
- * in the system.
- */
-
-int smp_call_function (void (*func) (void *info), void *info, int nonatomic,
-                        int wait)
-/*
- * [SUMMARY] 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> currently unused.
- * <wait> If true, wait (atomically) until function has completed on other CPUs.
- * [RETURNS] 0 on success, else a negative status code. Does not return until
+static struct call_data_struct *call_data;
+
+/**
+ * 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: currently unused.
+ * @wait: If true, wait (atomically) until function has completed on other CPUs.
+ *
+ * Returns 0 on success, else a negative status code. Does not return until
  * remote CPUs are nearly ready to execute <<func>> or are or have executed.
  *
  * 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)
 {
         struct call_data_struct data;
         int cpus;
diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c
index eba7f53f8b4a..a6969903f2d6 100644
--- a/arch/i386/kernel/smpboot.c
+++ b/arch/i386/kernel/smpboot.c
@@ -72,6 +72,9 @@ int phys_proc_id[NR_CPUS] __read_mostly = {[0 ... NR_CPUS-1] = BAD_APICID};
 /* Core ID of each logical CPU */
 int cpu_core_id[NR_CPUS] __read_mostly = {[0 ... NR_CPUS-1] = BAD_APICID};
 
+/* Last level cache ID of each logical CPU */
+int cpu_llc_id[NR_CPUS] __cpuinitdata = {[0 ... NR_CPUS-1] = BAD_APICID};
+
 /* representing HT siblings of each logical CPU */
 cpumask_t cpu_sibling_map[NR_CPUS] __read_mostly;
 EXPORT_SYMBOL(cpu_sibling_map);
@@ -440,6 +443,18 @@ static void __devinit smp_callin(void)
 
 static int cpucount;
 
+/* maps the cpu to the sched domain representing multi-core */
+cpumask_t cpu_coregroup_map(int cpu)
+{
+        struct cpuinfo_x86 *c = cpu_data + cpu;
+        /*
+         * For perf, we return last level cache shared map.
+         * TBD: when power saving sched policy is added, we will return
+         *      cpu_core_map when power saving policy is enabled
+         */
+        return c->llc_shared_map;
+}
+
 /* representing cpus for which sibling maps can be computed */
 static cpumask_t cpu_sibling_setup_map;
 
@@ -459,12 +474,16 @@ set_cpu_sibling_map(int cpu)
                                 cpu_set(cpu, cpu_sibling_map[i]);
                                 cpu_set(i, cpu_core_map[cpu]);
                                 cpu_set(cpu, cpu_core_map[i]);
+                                cpu_set(i, c[cpu].llc_shared_map);
+                                cpu_set(cpu, c[i].llc_shared_map);
                         }
                 }
         } else {
                 cpu_set(cpu, cpu_sibling_map[cpu]);
         }
 
+        cpu_set(cpu, c[cpu].llc_shared_map);
+
         if (current_cpu_data.x86_max_cores == 1) {
                 cpu_core_map[cpu] = cpu_sibling_map[cpu];
                 c[cpu].booted_cores = 1;
@@ -472,6 +491,11 @@ set_cpu_sibling_map(int cpu)
         }
 
         for_each_cpu_mask(i, cpu_sibling_setup_map) {
+                if (cpu_llc_id[cpu] != BAD_APICID &&
+                    cpu_llc_id[cpu] == cpu_llc_id[i]) {
+                        cpu_set(i, c[cpu].llc_shared_map);
+                        cpu_set(cpu, c[i].llc_shared_map);
+                }
                 if (phys_proc_id[cpu] == phys_proc_id[i]) {
                         cpu_set(i, cpu_core_map[cpu]);
                         cpu_set(cpu, cpu_core_map[i]);
@@ -899,6 +923,7 @@ static int __devinit do_boot_cpu(int apicid, int cpu)
         unsigned short nmi_high = 0, nmi_low = 0;
 
         ++cpucount;
+        alternatives_smp_switch(1);
 
         /*
          * We can't use kernel_thread since we must avoid to
@@ -1002,7 +1027,6 @@ void cpu_exit_clear(void)
 
         cpu_clear(cpu, cpu_callout_map);
         cpu_clear(cpu, cpu_callin_map);
-        cpu_clear(cpu, cpu_present_map);
 
         cpu_clear(cpu, smp_commenced_mask);
         unmap_cpu_to_logical_apicid(cpu);
@@ -1014,21 +1038,20 @@ struct warm_boot_cpu_info {
         int cpu;
 };
 
-static void __devinit do_warm_boot_cpu(void *p)
+static void __cpuinit do_warm_boot_cpu(void *p)
 {
         struct warm_boot_cpu_info *info = p;
         do_boot_cpu(info->apicid, info->cpu);
         complete(info->complete);
 }
 
-int __devinit smp_prepare_cpu(int cpu)
+static int __cpuinit __smp_prepare_cpu(int cpu)
 {
         DECLARE_COMPLETION(done);
         struct warm_boot_cpu_info info;
         struct work_struct task;
         int     apicid, ret;
 
-        lock_cpu_hotplug();
         apicid = x86_cpu_to_apicid[cpu];
         if (apicid == BAD_APICID) {
                 ret = -ENODEV;
@@ -1053,7 +1076,6 @@ int __devinit smp_prepare_cpu(int cpu)
         zap_low_mappings();
         ret = 0;
 exit:
-        unlock_cpu_hotplug();
         return ret;
 }
 #endif
@@ -1358,6 +1380,8 @@ void __cpu_die(unsigned int cpu)
                 /* They ack this in play_dead by setting CPU_DEAD */
                 if (per_cpu(cpu_state, cpu) == CPU_DEAD) {
                         printk ("CPU %d is now offline\n", cpu);
+                        if (1 == num_online_cpus())
+                                alternatives_smp_switch(0);
                         return;
                 }
                 msleep(100);
@@ -1379,6 +1403,22 @@ void __cpu_die(unsigned int cpu)
 
 int __devinit __cpu_up(unsigned int cpu)
 {
+#ifdef CONFIG_HOTPLUG_CPU
+        int ret=0;
+
+        /*
+         * We do warm boot only on cpus that had booted earlier
+         * Otherwise cold boot is all handled from smp_boot_cpus().
+         * cpu_callin_map is set during AP kickstart process. Its reset
+         * when a cpu is taken offline from cpu_exit_clear().
+         */
+        if (!cpu_isset(cpu, cpu_callin_map))
+                ret = __smp_prepare_cpu(cpu);
+
+        if (ret)
+                return -EIO;
+#endif
+
         /* In case one didn't come up */
         if (!cpu_isset(cpu, cpu_callin_map)) {
                 printk(KERN_DEBUG "skipping cpu%d, didn't come online\n", cpu);
diff --git a/arch/i386/kernel/sys_i386.c b/arch/i386/kernel/sys_i386.c
index a4a61976ecb9..8fdb1fb17a5f 100644
--- a/arch/i386/kernel/sys_i386.c
+++ b/arch/i386/kernel/sys_i386.c
@@ -40,14 +40,13 @@ asmlinkage int sys_pipe(unsigned long __user * fildes)
         return error;
 }
 
-/* common code for old and new mmaps */
-static inline long do_mmap2(
-        unsigned long addr, unsigned long len,
-        unsigned long prot, unsigned long flags,
-        unsigned long fd, unsigned long pgoff)
+asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
+                          unsigned long prot, unsigned long flags,
+                          unsigned long fd, unsigned long pgoff)
 {
         int error = -EBADF;
-        struct file * file = NULL;
+        struct file *file = NULL;
+        struct mm_struct *mm = current->mm;
 
         flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
         if (!(flags & MAP_ANONYMOUS)) {
@@ -56,9 +55,9 @@ static inline long do_mmap2(
                         goto out;
         }
 
-        down_write(&current->mm->mmap_sem);
+        down_write(&mm->mmap_sem);
         error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
-        up_write(&current->mm->mmap_sem);
+        up_write(&mm->mmap_sem);
 
         if (file)
                 fput(file);
@@ -66,13 +65,6 @@ out:
         return error;
 }
 
-asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
-        unsigned long prot, unsigned long flags,
-        unsigned long fd, unsigned long pgoff)
-{
-        return do_mmap2(addr, len, prot, flags, fd, pgoff);
-}
-
 /*
  * Perform the select(nd, in, out, ex, tv) and mmap() system
  * calls. Linux/i386 didn't use to be able to handle more than
@@ -101,7 +93,8 @@ asmlinkage int old_mmap(struct mmap_arg_struct __user *arg)
         if (a.offset & ~PAGE_MASK)
                 goto out;
 
-        err = do_mmap2(a.addr, a.len, a.prot, a.flags, a.fd, a.offset >> PAGE_SHIFT);
+        err = sys_mmap2(a.addr, a.len, a.prot, a.flags,
+                        a.fd, a.offset >> PAGE_SHIFT);
 out:
         return err;
 }
diff --git a/arch/i386/kernel/syscall_table.S b/arch/i386/kernel/syscall_table.S
index ac687d00a1ce..4f58b9c0efe3 100644
--- a/arch/i386/kernel/syscall_table.S
+++ b/arch/i386/kernel/syscall_table.S
@@ -310,3 +310,7 @@ ENTRY(sys_call_table)
         .long sys_pselect6
         .long sys_ppoll
         .long sys_unshare               /* 310 */
+        .long sys_set_robust_list
+        .long sys_get_robust_list
+        .long sys_splice
+        .long sys_sync_file_range
diff --git a/arch/i386/kernel/timers/timer_hpet.c b/arch/i386/kernel/timers/timer_hpet.c
index be242723c339..17a6fe7166e7 100644
--- a/arch/i386/kernel/timers/timer_hpet.c
+++ b/arch/i386/kernel/timers/timer_hpet.c
@@ -46,7 +46,7 @@ static seqlock_t monotonic_lock = SEQLOCK_UNLOCKED;
  *
  *                      -johnstul@us.ibm.com "math is hard, lets go shopping!"
  */
-static unsigned long cyc2ns_scale;
+static unsigned long cyc2ns_scale __read_mostly;
 #define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */
 
 static inline void set_cyc2ns_scale(unsigned long cpu_khz)
diff --git a/arch/i386/kernel/timers/timer_pm.c b/arch/i386/kernel/timers/timer_pm.c
index 264edaaac315..144e94a04933 100644
--- a/arch/i386/kernel/timers/timer_pm.c
+++ b/arch/i386/kernel/timers/timer_pm.c
@@ -15,6 +15,7 @@
 #include <linux/module.h>
 #include <linux/device.h>
 #include <linux/init.h>
+#include <linux/pci.h>
 #include <asm/types.h>
 #include <asm/timer.h>
 #include <asm/smp.h>
@@ -45,24 +46,31 @@ static seqlock_t monotonic_lock = SEQLOCK_UNLOCKED;
 
 #define ACPI_PM_MASK 0xFFFFFF /* limit it to 24 bits */
 
+static int pmtmr_need_workaround __read_mostly = 1;
+
 /*helper function to safely read acpi pm timesource*/
 static inline u32 read_pmtmr(void)
 {
-        u32 v1=0,v2=0,v3=0;
-        /* It has been reported that because of various broken
-         * chipsets (ICH4, PIIX4 and PIIX4E) where the ACPI PM time
-         * source is not latched, so you must read it multiple
-         * times to insure a safe value is read.
-         */
-        do {
-                v1 = inl(pmtmr_ioport);
-                v2 = inl(pmtmr_ioport);
-                v3 = inl(pmtmr_ioport);
-        } while ((v1 > v2 && v1 < v3) || (v2 > v3 && v2 < v1)
-                        || (v3 > v1 && v3 < v2));
-
-        /* mask the output to 24 bits */
-        return v2 & ACPI_PM_MASK;
+        if (pmtmr_need_workaround) {
+                u32 v1, v2, v3;
+
+                /* It has been reported that because of various broken
+                 * chipsets (ICH4, PIIX4 and PIIX4E) where the ACPI PM time
+                 * source is not latched, so you must read it multiple
+                 * times to insure a safe value is read.
+                 */
+                do {
+                        v1 = inl(pmtmr_ioport);
+                        v2 = inl(pmtmr_ioport);
+                        v3 = inl(pmtmr_ioport);
+                } while ((v1 > v2 && v1 < v3) || (v2 > v3 && v2 < v1)
+                         || (v3 > v1 && v3 < v2));
+
+                /* mask the output to 24 bits */
+                return v2 & ACPI_PM_MASK;
+        }
+
+        return inl(pmtmr_ioport) & ACPI_PM_MASK;
 }
 
 
@@ -263,6 +271,72 @@ struct init_timer_opts __initdata timer_pmtmr_init = {
         .opts = &timer_pmtmr,
 };
 
+#ifdef CONFIG_PCI
+/*
+ * PIIX4 Errata:
+ *
+ * The power management timer may return improper results when read.
+ * Although the timer value settles properly after incrementing,
+ * while incrementing there is a 3 ns window every 69.8 ns where the
+ * timer value is indeterminate (a 4.2% chance that the data will be
+ * incorrect when read). As a result, the ACPI free running count up
+ * timer specification is violated due to erroneous reads.
+ */
+static int __init pmtmr_bug_check(void)
+{
+        static struct pci_device_id gray_list[] __initdata = {
+                /* these chipsets may have bug. */
+                { PCI_DEVICE(PCI_VENDOR_ID_INTEL,
+                                PCI_DEVICE_ID_INTEL_82801DB_0) },
+                { },
+        };
+        struct pci_dev *dev;
+        int pmtmr_has_bug = 0;
+        u8 rev;
+
+        if (cur_timer != &timer_pmtmr || !pmtmr_need_workaround)
+                return 0;
+
+        dev = pci_get_device(PCI_VENDOR_ID_INTEL,
+                             PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
+        if (dev) {
+                pci_read_config_byte(dev, PCI_REVISION_ID, &rev);
+                /* the bug has been fixed in PIIX4M */
+                if (rev < 3) {
+                        printk(KERN_WARNING "* Found PM-Timer Bug on this "
+                                "chipset. Due to workarounds for a bug,\n"
+                                "* this time source is slow.  Consider trying "
+                                "other time sources (clock=)\n");
+                        pmtmr_has_bug = 1;
+                }
+                pci_dev_put(dev);
+        }
+
+        if (pci_dev_present(gray_list)) {
+                printk(KERN_WARNING "* This chipset may have PM-Timer Bug.  Due"
+                        " to workarounds for a bug,\n"
+                        "* this time source is slow. If you are sure your timer"
+                        " does not have\n"
+                        "* this bug, please use \"pmtmr_good\" to disable the "
+                        "workaround\n");
+                pmtmr_has_bug = 1;
+        }
+
+        if (!pmtmr_has_bug)
+                pmtmr_need_workaround = 0;
+
+        return 0;
+}
+device_initcall(pmtmr_bug_check);
+#endif
+
+static int __init pmtr_good_setup(char *__str)
+{
+        pmtmr_need_workaround = 0;
+        return 1;
+}
+__setup("pmtmr_good", pmtr_good_setup);
+
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>");
 MODULE_DESCRIPTION("Power Management Timer (PMTMR) as primary timing source for x86");
diff --git a/arch/i386/kernel/timers/timer_tsc.c b/arch/i386/kernel/timers/timer_tsc.c
index a7f5a2aceba2..5e41ee29c8cf 100644
--- a/arch/i386/kernel/timers/timer_tsc.c
+++ b/arch/i386/kernel/timers/timer_tsc.c
@@ -74,7 +74,7 @@ late_initcall(start_lost_tick_compensation);
  *
  *                      -johnstul@us.ibm.com "math is hard, lets go shopping!"
  */
-static unsigned long cyc2ns_scale; 
+static unsigned long cyc2ns_scale __read_mostly;
 #define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */
 
 static inline void set_cyc2ns_scale(unsigned long cpu_khz)
diff --git a/arch/i386/kernel/topology.c b/arch/i386/kernel/topology.c
index 67a0e1baa28b..296355292c7c 100644
--- a/arch/i386/kernel/topology.c
+++ b/arch/i386/kernel/topology.c
@@ -41,6 +41,15 @@ int arch_register_cpu(int num){
                 parent = &node_devices[node].node;
 #endif /* CONFIG_NUMA */
 
+        /*
+         * CPU0 cannot be offlined due to several
+         * restrictions and assumptions in kernel. This basically
+         * doesnt add a control file, one cannot attempt to offline
+         * BSP.
+         */
+        if (!num)
+                cpu_devices[num].cpu.no_control = 1;
+
         return register_cpu(&cpu_devices[num].cpu, num, parent);
 }
 
diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c
index b814dbdcc91e..e38527994590 100644
--- a/arch/i386/kernel/traps.c
+++ b/arch/i386/kernel/traps.c
@@ -92,32 +92,51 @@ asmlinkage void spurious_interrupt_bug(void);
 asmlinkage void machine_check(void);
 
 static int kstack_depth_to_print = 24;
-struct notifier_block *i386die_chain;
-static DEFINE_SPINLOCK(die_notifier_lock);
+ATOMIC_NOTIFIER_HEAD(i386die_chain);
 
 int register_die_notifier(struct notifier_block *nb)
 {
-        int err = 0;
-        unsigned long flags;
-        spin_lock_irqsave(&die_notifier_lock, flags);
-        err = notifier_chain_register(&i386die_chain, nb);
-        spin_unlock_irqrestore(&die_notifier_lock, flags);
-        return err;
+        vmalloc_sync_all();
+        return atomic_notifier_chain_register(&i386die_chain, nb);
 }
 EXPORT_SYMBOL(register_die_notifier);
 
+int unregister_die_notifier(struct notifier_block *nb)
+{
+        return atomic_notifier_chain_unregister(&i386die_chain, nb);
+}
+EXPORT_SYMBOL(unregister_die_notifier);
+
 static inline int valid_stack_ptr(struct thread_info *tinfo, void *p)
 {
         return  p > (void *)tinfo &&
                 p < (void *)tinfo + THREAD_SIZE - 3;
 }
 
-static void print_addr_and_symbol(unsigned long addr, char *log_lvl)
+/*
+ * Print CONFIG_STACK_BACKTRACE_COLS address/symbol entries per line.
+ */
+static inline int print_addr_and_symbol(unsigned long addr, char *log_lvl,
+                                        int printed)
 {
-        printk(log_lvl);
+        if (!printed)
+                printk(log_lvl);
+
+#if CONFIG_STACK_BACKTRACE_COLS == 1
         printk(" [<%08lx>] ", addr);
+#else
+        printk(" <%08lx> ", addr);
+#endif
         print_symbol("%s", addr);
-        printk("\n");
+
+        printed = (printed + 1) % CONFIG_STACK_BACKTRACE_COLS;
+
+        if (printed)
+                printk("  ");
+        else
+                printk("\n");
+
+        return printed;
 }
 
 static inline unsigned long print_context_stack(struct thread_info *tinfo,
@@ -125,20 +144,24 @@ static inline unsigned long print_context_stack(struct thread_info *tinfo,
                                 char *log_lvl)
 {
         unsigned long addr;
+        int printed = 0; /* nr of entries already printed on current line */
 
 #ifdef  CONFIG_FRAME_POINTER
         while (valid_stack_ptr(tinfo, (void *)ebp)) {
                 addr = *(unsigned long *)(ebp + 4);
-                print_addr_and_symbol(addr, log_lvl);
+                printed = print_addr_and_symbol(addr, log_lvl, printed);
                 ebp = *(unsigned long *)ebp;
         }
 #else
         while (valid_stack_ptr(tinfo, stack)) {
                 addr = *stack++;
                 if (__kernel_text_address(addr))
-                        print_addr_and_symbol(addr, log_lvl);
+                        printed = print_addr_and_symbol(addr, log_lvl, printed);
         }
 #endif
+        if (printed)
+                printk("\n");
+
         return ebp;
 }
 
@@ -166,8 +189,7 @@ static void show_trace_log_lvl(struct task_struct *task,
                 stack = (unsigned long*)context->previous_esp;
                 if (!stack)
                         break;
-                printk(log_lvl);
-                printk(" =======================\n");
+                printk("%s =======================\n", log_lvl);
         }
 }
 
@@ -194,21 +216,17 @@ static void show_stack_log_lvl(struct task_struct *task, unsigned long *esp,
         for(i = 0; i < kstack_depth_to_print; i++) {
                 if (kstack_end(stack))
                         break;
-                if (i && ((i % 8) == 0)) {
-                        printk("\n");
-                        printk(log_lvl);
-                        printk("       ");
-                }
+                if (i && ((i % 8) == 0))
+                        printk("\n%s       ", log_lvl);
                 printk("%08lx ", *stack++);
         }
-        printk("\n");
-        printk(log_lvl);
-        printk("Call Trace:\n");
+        printk("\n%sCall Trace:\n", log_lvl);
         show_trace_log_lvl(task, esp, log_lvl);
 }
 
 void show_stack(struct task_struct *task, unsigned long *esp)
 {
+        printk("       ");
         show_stack_log_lvl(task, esp, "");
 }
 
@@ -233,7 +251,7 @@ void show_registers(struct pt_regs *regs)
 
         esp = (unsigned long) (&regs->esp);
         savesegment(ss, ss);
-        if (user_mode(regs)) {
+        if (user_mode_vm(regs)) {
                 in_kernel = 0;
                 esp = regs->esp;
                 ss = regs->xss & 0xffff;
@@ -333,6 +351,8 @@ void die(const char * str, struct pt_regs * regs, long err)
         static int die_counter;
         unsigned long flags;
 
+        oops_enter();
+
         if (die.lock_owner != raw_smp_processor_id()) {
                 console_verbose();
                 spin_lock_irqsave(&die.lock, flags);
@@ -365,8 +385,12 @@ void die(const char * str, struct pt_regs * regs, long err)
 #endif
                 if (nl)
                         printk("\n");
-        notify_die(DIE_OOPS, (char *)str, regs, err, 255, SIGSEGV);
-                show_registers(regs);
+                if (notify_die(DIE_OOPS, str, regs, err,
+                                        current->thread.trap_no, SIGSEGV) !=
+                                NOTIFY_STOP)
+                        show_registers(regs);
+                else
+                        regs = NULL;
         } else
                 printk(KERN_EMERG "Recursive die() failure, output suppressed\n");
 
@@ -374,6 +398,9 @@ void die(const char * str, struct pt_regs * regs, long err)
         die.lock_owner = -1;
         spin_unlock_irqrestore(&die.lock, flags);
 
+        if (!regs)
+                return;
+
         if (kexec_should_crash(current))
                 crash_kexec(regs);
 
@@ -385,6 +412,7 @@ void die(const char * str, struct pt_regs * regs, long err)
                 ssleep(5);
                 panic("Fatal exception");
         }
+        oops_exit();
         do_exit(SIGSEGV);
 }
 
@@ -601,7 +629,7 @@ static DEFINE_SPINLOCK(nmi_print_lock);
 
 void die_nmi (struct pt_regs *regs, const char *msg)
 {
-        if (notify_die(DIE_NMIWATCHDOG, msg, regs, 0, 0, SIGINT) ==
+        if (notify_die(DIE_NMIWATCHDOG, msg, regs, 0, 2, SIGINT) ==
             NOTIFY_STOP)
                 return;
 
@@ -623,7 +651,7 @@ void die_nmi (struct pt_regs *regs, const char *msg)
         /* If we are in kernel we are probably nested up pretty bad
          * and might aswell get out now while we still can.
         */
-        if (!user_mode(regs)) {
+        if (!user_mode_vm(regs)) {
                 current->thread.trap_no = 2;
                 crash_kexec(regs);
         }
@@ -640,7 +668,7 @@ static void default_do_nmi(struct pt_regs * regs)
                 reason = get_nmi_reason();
  
         if (!(reason & 0xc0)) {
-                if (notify_die(DIE_NMI_IPI, "nmi_ipi", regs, reason, 0, SIGINT)
+                if (notify_die(DIE_NMI_IPI, "nmi_ipi", regs, reason, 2, SIGINT)
                                                         == NOTIFY_STOP)
                         return;
 #ifdef CONFIG_X86_LOCAL_APIC
@@ -656,7 +684,7 @@ static void default_do_nmi(struct pt_regs * regs)
                 unknown_nmi_error(reason, regs);
                 return;
         }
-        if (notify_die(DIE_NMI, "nmi", regs, reason, 0, SIGINT) == NOTIFY_STOP)
+        if (notify_die(DIE_NMI, "nmi", regs, reason, 2, SIGINT) == NOTIFY_STOP)
                 return;
         if (reason & 0x80)
                 mem_parity_error(reason, regs);
@@ -694,6 +722,7 @@ fastcall void do_nmi(struct pt_regs * regs, long error_code)
 
 void set_nmi_callback(nmi_callback_t callback)
 {
+        vmalloc_sync_all();
         rcu_assign_pointer(nmi_callback, callback);
 }
 EXPORT_SYMBOL_GPL(set_nmi_callback);
@@ -1164,6 +1193,6 @@ void __init trap_init(void)
 static int __init kstack_setup(char *s)
 {
         kstack_depth_to_print = simple_strtoul(s, NULL, 0);
-        return 0;
+        return 1;
 }
 __setup("kstack=", kstack_setup);
diff --git a/arch/i386/kernel/vm86.c b/arch/i386/kernel/vm86.c
index f51c894a7da5..aee14fafd13d 100644
--- a/arch/i386/kernel/vm86.c
+++ b/arch/i386/kernel/vm86.c
@@ -43,6 +43,7 @@
 #include <linux/smp_lock.h>
 #include <linux/highmem.h>
 #include <linux/ptrace.h>
+#include <linux/audit.h>
 
 #include <asm/uaccess.h>
 #include <asm/io.h>
@@ -252,6 +253,7 @@ out:
 static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk)
 {
         struct tss_struct *tss;
+        long eax;
 /*
  * make sure the vm86() system call doesn't try to do anything silly
  */
@@ -305,13 +307,19 @@ static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk
         tsk->thread.screen_bitmap = info->screen_bitmap;
         if (info->flags & VM86_SCREEN_BITMAP)
                 mark_screen_rdonly(tsk->mm);
+        __asm__ __volatile__("xorl %eax,%eax; movl %eax,%fs; movl %eax,%gs\n\t");
+        __asm__ __volatile__("movl %%eax, %0\n" :"=r"(eax));
+
+        /*call audit_syscall_exit since we do not exit via the normal paths */
+        if (unlikely(current->audit_context))
+                audit_syscall_exit(current, AUDITSC_RESULT(eax), eax);
+
         __asm__ __volatile__(
-                "xorl %%eax,%%eax; movl %%eax,%%fs; movl %%eax,%%gs\n\t"
                 "movl %0,%%esp\n\t"
                 "movl %1,%%ebp\n\t"
                 "jmp resume_userspace"
                 : /* no outputs */
-                :"r" (&info->regs), "r" (task_thread_info(tsk)) : "ax");
+                :"r" (&info->regs), "r" (task_thread_info(tsk)));
         /* we never return here */
 }
 
diff --git a/arch/i386/kernel/vmlinux.lds.S b/arch/i386/kernel/vmlinux.lds.S
index 4710195b6b74..8831303a473f 100644
--- a/arch/i386/kernel/vmlinux.lds.S
+++ b/arch/i386/kernel/vmlinux.lds.S
@@ -7,6 +7,7 @@
 #include <asm-generic/vmlinux.lds.h>
 #include <asm/thread_info.h>
 #include <asm/page.h>
+#include <asm/cache.h>
 
 OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
 OUTPUT_ARCH(i386)
@@ -68,6 +69,26 @@ SECTIONS
         *(.data.init_task)
   }
 
+  /* might get freed after init */
+  . = ALIGN(4096);
+  __smp_alt_begin = .;
+  __smp_alt_instructions = .;
+  .smp_altinstructions : AT(ADDR(.smp_altinstructions) - LOAD_OFFSET) {
+        *(.smp_altinstructions)
+  }
+  __smp_alt_instructions_end = .;
+  . = ALIGN(4);
+  __smp_locks = .;
+  .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
+        *(.smp_locks)
+  }
+  __smp_locks_end = .;
+  .smp_altinstr_replacement : AT(ADDR(.smp_altinstr_replacement) - LOAD_OFFSET) {
+        *(.smp_altinstr_replacement)
+  }
+  . = ALIGN(4096);
+  __smp_alt_end = .;
+
   /* will be freed after init */
   . = ALIGN(4096);              /* Init code and data */
   __init_begin = .;
@@ -115,7 +136,7 @@ SECTIONS
   __initramfs_start = .;
   .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) { *(.init.ramfs) }
   __initramfs_end = .;
-  . = ALIGN(32);
+  . = ALIGN(L1_CACHE_BYTES);
   __per_cpu_start = .;
   .data.percpu  : AT(ADDR(.data.percpu) - LOAD_OFFSET) { *(.data.percpu) }
   __per_cpu_end = .;
diff --git a/arch/i386/kernel/vsyscall-sigreturn.S b/arch/i386/kernel/vsyscall-sigreturn.S
index fadb5bc3c374..a92262f41659 100644
--- a/arch/i386/kernel/vsyscall-sigreturn.S
+++ b/arch/i386/kernel/vsyscall-sigreturn.S
@@ -44,7 +44,7 @@ __kernel_rt_sigreturn:
 .LSTARTCIEDLSI1:
         .long 0                 /* CIE ID */
         .byte 1                 /* Version number */
-        .string "zR"            /* NUL-terminated augmentation string */
+        .string "zRS"           /* NUL-terminated augmentation string */
         .uleb128 1              /* Code alignment factor */
         .sleb128 -4             /* Data alignment factor */
         .byte 8                 /* Return address register column */
diff --git a/arch/i386/kernel/vsyscall-sysenter.S b/arch/i386/kernel/vsyscall-sysenter.S
index 76b728159403..3b62baa6a371 100644
--- a/arch/i386/kernel/vsyscall-sysenter.S
+++ b/arch/i386/kernel/vsyscall-sysenter.S
@@ -21,6 +21,9 @@
  * instruction clobbers %esp, the user's %esp won't even survive entry
  * into the kernel. We store %esp in %ebp. Code in entry.S must fetch
  * arg6 from the stack.
+ *
+ * You can not use this vsyscall for the clone() syscall because the
+ * three dwords on the parent stack do not get copied to the child.
  */
         .text
         .globl __kernel_vsyscall