Merge ssh://master.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-x86

* ssh://master.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-x86: (33 commits)
  x86: convert cpuinfo_x86 array to a per_cpu array
  x86: introduce frame_pointer() and stack_pointer()
  x86 & generic: change to __builtin_prefetch()
  i386: do not BUG_ON() when MSR is unknown
  x86: acpi use cpu_physical_id
  x86: convert cpu_llc_id to be a per cpu variable
  x86: convert cpu_to_apicid to be a per cpu variable
  i386: introduce "used_vectors" bitmap which can be used to reserve vectors.
  x86: use raw locks during oopses
  x86: honor _PAGE_PSE bit on page walks
  i386: do cpuid_device_create() in CPU_UP_PREPARE instead of CPU_ONLINE.
  x86: implement missing x86_64 function smp_call_function_mask()
  x86: use descriptor's functions instead of inline assembly
  i386: consolidate show_regs and show_registers for i386
  i386: make callgraph use dump_trace() on i386/x86_64
  x86: enable iommu_merge by default
  i386: i386 add AMD64 Barcelona PMU MSR definitions to msr.h
  x86: Unify i386 and x86-64 early quirks
  x86: enable HPET on ICH3 and ICH4
  x86: force enable HPET on VT8235/8237 chipsets
  ...

Manually fix trivial conflict with task pid container helper changes in
arch/x86/kernel/process_32.c

70 files changed, 630 insertions, 635 deletions

diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index d0a4ea1ba14..d1bedbf9deb 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -1080,7 +1080,7 @@ config APM_REAL_MODE_POWER_OFF
 
 endif # APM
 
-source "arch/x86/kernel/cpu/cpufreq/Kconfig"
+source "arch/x86/kernel/cpu/cpufreq/Kconfig_32"
 
 source "drivers/cpuidle/Kconfig"
 
diff --git a/arch/i386/Makefile b/arch/i386/Makefile
index f036d2dee3d..b88e47ca303 100644
--- a/arch/i386/Makefile
+++ b/arch/i386/Makefile
@@ -102,7 +102,7 @@ core-$(CONFIG_XEN)		+= arch/x86/xen/
 # default subarch .h files
 mflags-y += -Iinclude/asm-x86/mach-default
 
-head-y := arch/x86/kernel/head_32.o arch/x86/kernel/init_task_32.o
+head-y := arch/x86/kernel/head_32.o arch/x86/kernel/init_task.o
 
 libs-y 					+= arch/x86/lib/
 core-y					+= arch/x86/kernel/ \
@@ -131,9 +131,9 @@ all: bzImage
 zImage zlilo zdisk: KBUILD_IMAGE := arch/x86/boot/zImage
 
 zImage bzImage: vmlinux
-	$(Q)mkdir -p $(objtree)/arch/i386/boot
-	$(Q)ln -fsn $(objtree)/arch/x86/boot/bzImage $(objtree)/arch/i386/boot/bzImage
 	$(Q)$(MAKE) $(build)=$(boot) $(KBUILD_IMAGE)
+	$(Q)mkdir -p $(objtree)/arch/i386/boot
+	$(Q)ln -fsn ../../x86/boot/bzImage $(objtree)/arch/i386/boot/bzImage
 
 compressed: zImage
 
diff --git a/arch/x86/ia32/ia32_binfmt.c b/arch/x86/ia32/ia32_binfmt.c
index 5027650eb27..55822d2cf05 100644
--- a/arch/x86/ia32/ia32_binfmt.c
+++ b/arch/x86/ia32/ia32_binfmt.c
@@ -5,10 +5,6 @@
  * This tricks binfmt_elf.c into loading 32bit binaries using lots 
  * of ugly preprocessor tricks. Talk about very very poor man's inheritance.
  */ 
-#define __ASM_X86_64_ELF_H 1
-
-#undef ELF_CLASS
-#define ELF_CLASS ELFCLASS32
 
 #include <linux/types.h>
 #include <linux/stddef.h>
@@ -19,6 +15,7 @@
 #include <linux/binfmts.h>
 #include <linux/mm.h>
 #include <linux/security.h>
+#include <linux/elfcore-compat.h>
 
 #include <asm/segment.h> 
 #include <asm/ptrace.h>
@@ -31,6 +28,20 @@
 #include <asm/ia32.h>
 #include <asm/vsyscall32.h>
 
+#undef	ELF_ARCH
+#undef	ELF_CLASS
+#define ELF_CLASS	ELFCLASS32
+#define ELF_ARCH	EM_386
+
+#undef	elfhdr
+#undef	elf_phdr
+#undef	elf_note
+#undef	elf_addr_t
+#define elfhdr		elf32_hdr
+#define elf_phdr	elf32_phdr
+#define elf_note	elf32_note
+#define elf_addr_t	Elf32_Off
+
 #define ELF_NAME "elf/i386"
 
 #define AT_SYSINFO 32
@@ -48,74 +59,20 @@ int sysctl_vsyscall32 = 1;
 } while(0)
 
 struct file;
-struct elf_phdr; 
 
 #define IA32_EMULATOR 1
 
-#define ELF_ET_DYN_BASE		(TASK_UNMAPPED_BASE + 0x1000000)
-
-#undef ELF_ARCH
-#define ELF_ARCH EM_386
-
-#define ELF_DATA	ELFDATA2LSB
+#undef ELF_ET_DYN_BASE
 
-#define USE_ELF_CORE_DUMP 1
-
-/* Override elfcore.h */ 
-#define _LINUX_ELFCORE_H 1
-typedef unsigned int elf_greg_t;
-
-#define ELF_NGREG (sizeof (struct user_regs_struct32) / sizeof(elf_greg_t))
-typedef elf_greg_t elf_gregset_t[ELF_NGREG];
-
-struct elf_siginfo
-{
-	int	si_signo;			/* signal number */
-	int	si_code;			/* extra code */
-	int	si_errno;			/* errno */
-};
+#define ELF_ET_DYN_BASE		(TASK_UNMAPPED_BASE + 0x1000000)
 
 #define jiffies_to_timeval(a,b) do { (b)->tv_usec = 0; (b)->tv_sec = (a)/HZ; }while(0)
 
-struct elf_prstatus
-{
-	struct elf_siginfo pr_info;	/* Info associated with signal */
-	short	pr_cursig;		/* Current signal */
-	unsigned int pr_sigpend;	/* Set of pending signals */
-	unsigned int pr_sighold;	/* Set of held signals */
-	pid_t	pr_pid;
-	pid_t	pr_ppid;
-	pid_t	pr_pgrp;
-	pid_t	pr_sid;
-	struct compat_timeval pr_utime;	/* User time */
-	struct compat_timeval pr_stime;	/* System time */
-	struct compat_timeval pr_cutime;	/* Cumulative user time */
-	struct compat_timeval pr_cstime;	/* Cumulative system time */
-	elf_gregset_t pr_reg;	/* GP registers */
-	int pr_fpvalid;		/* True if math co-processor being used.  */
-};
-
-#define ELF_PRARGSZ	(80)	/* Number of chars for args */
-
-struct elf_prpsinfo
-{
-	char	pr_state;	/* numeric process state */
-	char	pr_sname;	/* char for pr_state */
-	char	pr_zomb;	/* zombie */
-	char	pr_nice;	/* nice val */
-	unsigned int pr_flag;	/* flags */
-	__u16	pr_uid;
-	__u16	pr_gid;
-	pid_t	pr_pid, pr_ppid, pr_pgrp, pr_sid;
-	/* Lots missing */
-	char	pr_fname[16];	/* filename of executable */
-	char	pr_psargs[ELF_PRARGSZ];	/* initial part of arg list */
-};
-
 #define _GET_SEG(x) \
 	({ __u32 seg; asm("movl %%" __stringify(x) ",%0" : "=r"(seg)); seg; })
 
 /* Assumes current==process to be dumped */
+#undef	ELF_CORE_COPY_REGS
 #define ELF_CORE_COPY_REGS(pr_reg, regs)       		\
 	pr_reg[0] = regs->rbx;				\
 	pr_reg[1] = regs->rcx;				\
@@ -135,36 +92,41 @@ struct elf_prpsinfo
 	pr_reg[15] = regs->rsp;				\
 	pr_reg[16] = regs->ss;
 
-#define user user32
+
+#define elf_prstatus	compat_elf_prstatus
+#define elf_prpsinfo	compat_elf_prpsinfo
+#define elf_fpregset_t	struct user_i387_ia32_struct
+#define	elf_fpxregset_t	struct user32_fxsr_struct
+#define user		user32
 
 #undef elf_read_implies_exec
 #define elf_read_implies_exec(ex, executable_stack)     (executable_stack != EXSTACK_DISABLE_X)
-//#include <asm/ia32.h>
-#include <linux/elf.h>
-
-typedef struct user_i387_ia32_struct elf_fpregset_t;
-typedef struct user32_fxsr_struct elf_fpxregset_t;
-
 
-static inline void elf_core_copy_regs(elf_gregset_t *elfregs, struct pt_regs *regs)
+#define elf_core_copy_regs		elf32_core_copy_regs
+static inline void elf32_core_copy_regs(compat_elf_gregset_t *elfregs,
+					struct pt_regs *regs)
 {
-	ELF_CORE_COPY_REGS((*elfregs), regs)
+	ELF_CORE_COPY_REGS((&elfregs->ebx), regs)
 }
 
-static inline int elf_core_copy_task_regs(struct task_struct *t, elf_gregset_t* elfregs)
+#define elf_core_copy_task_regs		elf32_core_copy_task_regs
+static inline int elf32_core_copy_task_regs(struct task_struct *t,
+					    compat_elf_gregset_t* elfregs)
 {	
 	struct pt_regs *pp = task_pt_regs(t);
-	ELF_CORE_COPY_REGS((*elfregs), pp);
+	ELF_CORE_COPY_REGS((&elfregs->ebx), pp);
 	/* fix wrong segments */ 
-	(*elfregs)[7] = t->thread.ds; 
-	(*elfregs)[9] = t->thread.fsindex; 
-	(*elfregs)[10] = t->thread.gsindex; 
-	(*elfregs)[8] = t->thread.es; 	
+	elfregs->ds = t->thread.ds;
+	elfregs->fs = t->thread.fsindex;
+	elfregs->gs = t->thread.gsindex;
+	elfregs->es = t->thread.es;
 	return 1; 
 }
 
+#define elf_core_copy_task_fpregs	elf32_core_copy_task_fpregs
 static inline int 
-elf_core_copy_task_fpregs(struct task_struct *tsk, struct pt_regs *regs, elf_fpregset_t *fpu)
+elf32_core_copy_task_fpregs(struct task_struct *tsk, struct pt_regs *regs,
+			    elf_fpregset_t *fpu)
 {
 	struct _fpstate_ia32 *fpstate = (void*)fpu; 
 	mm_segment_t oldfs = get_fs();
@@ -186,8 +148,9 @@ elf_core_copy_task_fpregs(struct task_struct *tsk, struct pt_regs *regs, elf_fpr
 
 #define ELF_CORE_COPY_XFPREGS 1
 #define ELF_CORE_XFPREG_TYPE NT_PRXFPREG
+#define elf_core_copy_task_xfpregs	elf32_core_copy_task_xfpregs
 static inline int 
-elf_core_copy_task_xfpregs(struct task_struct *t, elf_fpxregset_t *xfpu)
+elf32_core_copy_task_xfpregs(struct task_struct *t, elf_fpxregset_t *xfpu)
 {
 	struct pt_regs *regs = task_pt_regs(t);
 	if (!tsk_used_math(t))
@@ -206,6 +169,10 @@ elf_core_copy_task_xfpregs(struct task_struct *t, elf_fpxregset_t *xfpu)
 
 extern int force_personality32;
 
+#undef	ELF_EXEC_PAGESIZE
+#undef	ELF_HWCAP
+#undef	ELF_PLATFORM
+#undef	SET_PERSONALITY
 #define ELF_EXEC_PAGESIZE PAGE_SIZE
 #define ELF_HWCAP (boot_cpu_data.x86_capability[0])
 #define ELF_PLATFORM  ("i686")
@@ -231,6 +198,7 @@ do {							\
 
 #define load_elf_binary load_elf32_binary
 
+#undef	ELF_PLAT_INIT
 #define ELF_PLAT_INIT(r, load_addr)	elf32_init(r)
 
 #undef start_thread
diff --git a/arch/x86/kernel/Makefile_32 b/arch/x86/kernel/Makefile_32
index a3fa11f8f46..ccea590bbb9 100644
--- a/arch/x86/kernel/Makefile_32
+++ b/arch/x86/kernel/Makefile_32
@@ -2,7 +2,7 @@
 # Makefile for the linux kernel.
 #
 
-extra-y := head_32.o init_task_32.o vmlinux.lds
+extra-y := head_32.o init_task.o vmlinux.lds
 
 obj-y	:= process_32.o signal_32.o entry_32.o traps_32.o irq_32.o \
 		ptrace_32.o time_32.o ioport_32.o ldt_32.o setup_32.o i8259_32.o sys_i386_32.o \
@@ -17,6 +17,7 @@ obj-$(CONFIG_MCA)		+= mca_32.o
 obj-$(CONFIG_X86_MSR)		+= msr.o
 obj-$(CONFIG_X86_CPUID)		+= cpuid.o
 obj-$(CONFIG_MICROCODE)		+= microcode.o
+obj-$(CONFIG_PCI)		+= early-quirks.o
 obj-$(CONFIG_APM)		+= apm_32.o
 obj-$(CONFIG_X86_SMP)		+= smp_32.o smpboot_32.o tsc_sync.o
 obj-$(CONFIG_SMP)		+= smpcommon_32.o
diff --git a/arch/x86/kernel/Makefile_64 b/arch/x86/kernel/Makefile_64
index 43da66213a4..dec06e76928 100644
--- a/arch/x86/kernel/Makefile_64
+++ b/arch/x86/kernel/Makefile_64
@@ -2,7 +2,7 @@
 # Makefile for the linux kernel.
 #
 
-extra-y 	:= head_64.o head64.o init_task_64.o vmlinux.lds
+extra-y 	:= head_64.o head64.o init_task.o vmlinux.lds
 EXTRA_AFLAGS	:= -traditional
 obj-y	:= process_64.o signal_64.o entry_64.o traps_64.o irq_64.o \
 		ptrace_64.o time_64.o ioport_64.o ldt_64.o setup_64.o i8259_64.o sys_x86_64.o \
@@ -39,7 +39,7 @@ obj-$(CONFIG_K8_NB)		+= k8.o
 obj-$(CONFIG_AUDIT)		+= audit_64.o
 
 obj-$(CONFIG_MODULES)		+= module_64.o
-obj-$(CONFIG_PCI)		+= early-quirks_64.o
+obj-$(CONFIG_PCI)		+= early-quirks.o
 
 obj-y				+= topology.o
 obj-y				+= intel_cacheinfo.o
diff --git a/arch/x86/kernel/acpi/Makefile_32 b/arch/x86/kernel/acpi/Makefile_32
index a4852a2e919..045dd54b33e 100644
--- a/arch/x86/kernel/acpi/Makefile_32
+++ b/arch/x86/kernel/acpi/Makefile_32
@@ -1,7 +1,4 @@
 obj-$(CONFIG_ACPI)		+= boot.o
-ifneq ($(CONFIG_PCI),)
-obj-$(CONFIG_X86_IO_APIC)	+= earlyquirk_32.o
-endif
 obj-$(CONFIG_ACPI_SLEEP)	+= sleep_32.o wakeup_32.o
 
 ifneq ($(CONFIG_ACPI_PROCESSOR),)
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index afd2afe9102..f28b2e251b1 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -555,7 +555,7 @@ EXPORT_SYMBOL(acpi_map_lsapic);
 
 int acpi_unmap_lsapic(int cpu)
 {
-	x86_cpu_to_apicid[cpu] = -1;
+	per_cpu(x86_cpu_to_apicid, cpu) = -1;
 	cpu_clear(cpu, cpu_present_map);
 	num_processors--;
 
diff --git a/arch/x86/kernel/acpi/cstate.c b/arch/x86/kernel/acpi/cstate.c
index 2d39f55d29a..10b67170b13 100644
--- a/arch/x86/kernel/acpi/cstate.c
+++ b/arch/x86/kernel/acpi/cstate.c
@@ -29,7 +29,7 @@
 void acpi_processor_power_init_bm_check(struct acpi_processor_flags *flags,
 					unsigned int cpu)
 {
-	struct cpuinfo_x86 *c = cpu_data + cpu;
+	struct cpuinfo_x86 *c = &cpu_data(cpu);
 
 	flags->bm_check = 0;
 	if (num_online_cpus() == 1)
@@ -72,7 +72,7 @@ int acpi_processor_ffh_cstate_probe(unsigned int cpu,
 		struct acpi_processor_cx *cx, struct acpi_power_register *reg)
 {
 	struct cstate_entry *percpu_entry;
-	struct cpuinfo_x86 *c = cpu_data + cpu;
+	struct cpuinfo_x86 *c = &cpu_data(cpu);
 
 	cpumask_t saved_mask;
 	int retval;
diff --git a/arch/x86/kernel/acpi/earlyquirk_32.c b/arch/x86/kernel/acpi/earlyquirk_32.c
deleted file mode 100644
index 23f78efc577..00000000000
--- a/arch/x86/kernel/acpi/earlyquirk_32.c
+++ /dev/null
@@ -1,84 +0,0 @@
-/* 
- * Do early PCI probing for bug detection when the main PCI subsystem is 
- * not up yet.
- */
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/acpi.h>
-
-#include <asm/pci-direct.h>
-#include <asm/acpi.h>
-#include <asm/apic.h>
-
-#ifdef CONFIG_ACPI
-
-static int __init nvidia_hpet_check(struct acpi_table_header *header)
-{
-	return 0;
-}
-#endif
-
-static int __init check_bridge(int vendor, int device)
-{
-#ifdef CONFIG_ACPI
-	static int warned;
-	/* According to Nvidia all timer overrides are bogus unless HPET
-	   is enabled. */
-	if (!acpi_use_timer_override && vendor == PCI_VENDOR_ID_NVIDIA) {
-		if (!warned && acpi_table_parse(ACPI_SIG_HPET,
-						nvidia_hpet_check)) {
-			warned = 1;
-			acpi_skip_timer_override = 1;
-			  printk(KERN_INFO "Nvidia board "
-                       "detected. Ignoring ACPI "
-                       "timer override.\n");
-                printk(KERN_INFO "If you got timer trouble "
-			 	 "try acpi_use_timer_override\n");
-
-		}
-	}
-#endif
-	if (vendor == PCI_VENDOR_ID_ATI && timer_over_8254 == 1) {
-		timer_over_8254 = 0;
-		printk(KERN_INFO "ATI board detected. Disabling timer routing "
-				"over 8254.\n");
-	}
-	return 0;
-}
-
-void __init check_acpi_pci(void)
-{
-	int num, slot, func;
-
-	/* Assume the machine supports type 1. If not it will 
-	   always read ffffffff and should not have any side effect.
-	   Actually a few buggy systems can machine check. Allow the user
-	   to disable it by command line option at least -AK */
-	if (!early_pci_allowed())
-		return;
-
-	/* Poor man's PCI discovery */
-	for (num = 0; num < 32; num++) {
-		for (slot = 0; slot < 32; slot++) {
-			for (func = 0; func < 8; func++) {
-				u32 class;
-				u32 vendor;
-				class = read_pci_config(num, slot, func,
-							PCI_CLASS_REVISION);
-				if (class == 0xffffffff)
-					break;
-
-				if ((class >> 16) != PCI_CLASS_BRIDGE_PCI)
-					continue;
-
-				vendor = read_pci_config(num, slot, func,
-							 PCI_VENDOR_ID);
-
-				if (check_bridge(vendor & 0xffff, vendor >> 16))
-					return;
-			}
-
-		}
-	}
-}
diff --git a/arch/x86/kernel/acpi/processor.c b/arch/x86/kernel/acpi/processor.c
index b54fded4983..2ed0a4ce62f 100644
--- a/arch/x86/kernel/acpi/processor.c
+++ b/arch/x86/kernel/acpi/processor.c
@@ -63,7 +63,7 @@ static void init_intel_pdc(struct acpi_processor *pr, struct cpuinfo_x86 *c)
 void arch_acpi_processor_init_pdc(struct acpi_processor *pr)
 {
 	unsigned int cpu = pr->id;
-	struct cpuinfo_x86 *c = cpu_data + cpu;
+	struct cpuinfo_x86 *c = &cpu_data(cpu);
 
 	pr->pdc = NULL;
 	if (c->x86_vendor == X86_VENDOR_INTEL)
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index 3bd2688bd44..d6405e0842b 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -357,14 +357,14 @@ void alternatives_smp_switch(int smp)
 	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);
+		clear_bit(X86_FEATURE_UP, cpu_data(0).x86_capability);
 		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);
+		set_bit(X86_FEATURE_UP, cpu_data(0).x86_capability);
 		list_for_each_entry(mod, &smp_alt_modules, next)
 			alternatives_smp_unlock(mod->locks, mod->locks_end,
 						mod->text, mod->text_end);
@@ -432,7 +432,7 @@ void __init alternative_instructions(void)
 		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);
+			set_bit(X86_FEATURE_UP, cpu_data(0).x86_capability);
 			alternatives_smp_unlock(__smp_locks, __smp_locks_end,
 						_text, _etext);
 		}
diff --git a/arch/x86/kernel/cpu/cpufreq/Kconfig b/arch/x86/kernel/cpu/cpufreq/Kconfig_32
index d8c6f132dc7..d8c6f132dc7 100644
--- a/arch/x86/kernel/cpu/cpufreq/Kconfig
+++ b/arch/x86/kernel/cpu/cpufreq/Kconfig_32
diff --git a/arch/x86/kernel/cpufreq/Kconfig b/arch/x86/kernel/cpu/cpufreq/Kconfig_64
index a3fd51926cb..9c9699fdcf5 100644
--- a/