Merge branch 'linus' into x86/urgent

Merge reason: Bring in changes that the next patch will depend on.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

19 files changed, 226 insertions, 228 deletions

diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index 9a86fb40490d..474d80d3e6cc 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -83,9 +83,6 @@ static inline bool apic_from_smp_config(void)
  */
 #ifdef CONFIG_PARAVIRT
 #include <asm/paravirt.h>
-#else
-#define setup_boot_clock setup_boot_APIC_clock
-#define setup_secondary_clock setup_secondary_APIC_clock
 #endif
 
 #ifdef CONFIG_X86_64
@@ -265,6 +262,8 @@ static inline void lapic_shutdown(void) { }
 static inline void init_apic_mappings(void) { }
 static inline void disable_local_APIC(void) { }
 static inline void apic_disable(void) { }
+# define setup_boot_APIC_clock x86_init_noop
+# define setup_secondary_APIC_clock x86_init_noop
 #endif /* !CONFIG_X86_LOCAL_APIC */
 
 #ifdef CONFIG_X86_64
@@ -313,7 +312,7 @@ struct apic {
 	int (*cpu_present_to_apicid)(int mps_cpu);
 	physid_mask_t (*apicid_to_cpu_present)(int phys_apicid);
 	void (*setup_portio_remap)(void);
-	int (*check_phys_apicid_present)(int boot_cpu_physical_apicid);
+	int (*check_phys_apicid_present)(int phys_apicid);
 	void (*enable_apic_mode)(void);
 	int (*phys_pkg_id)(int cpuid_apic, int index_msb);
 
@@ -447,7 +446,7 @@ extern struct apic apic_x2apic_uv_x;
 DECLARE_PER_CPU(int, x2apic_extra_bits);
 
 extern int default_cpu_present_to_apicid(int mps_cpu);
-extern int default_check_phys_apicid_present(int boot_cpu_physical_apicid);
+extern int default_check_phys_apicid_present(int phys_apicid);
 #endif
 
 static inline void default_wait_for_init_deassert(atomic_t *deassert)
@@ -563,9 +562,9 @@ static inline int __default_cpu_present_to_apicid(int mps_cpu)
 }
 
 static inline int
-__default_check_phys_apicid_present(int boot_cpu_physical_apicid)
+__default_check_phys_apicid_present(int phys_apicid)
 {
-	return physid_isset(boot_cpu_physical_apicid, phys_cpu_present_map);
+	return physid_isset(phys_apicid, phys_cpu_present_map);
 }
 
 #ifdef CONFIG_X86_32
@@ -575,13 +574,13 @@ static inline int default_cpu_present_to_apicid(int mps_cpu)
 }
 
 static inline int
-default_check_phys_apicid_present(int boot_cpu_physical_apicid)
+default_check_phys_apicid_present(int phys_apicid)
 {
-	return __default_check_phys_apicid_present(boot_cpu_physical_apicid);
+	return __default_check_phys_apicid_present(phys_apicid);
 }
 #else
 extern int default_cpu_present_to_apicid(int mps_cpu);
-extern int default_check_phys_apicid_present(int boot_cpu_physical_apicid);
+extern int default_check_phys_apicid_present(int phys_apicid);
 #endif
 
 static inline physid_mask_t default_apicid_to_cpu_present(int phys_apicid)
diff --git a/arch/x86/include/asm/bootparam.h b/arch/x86/include/asm/bootparam.h
index 6ca20218dd72..6be33d83c716 100644
--- a/arch/x86/include/asm/bootparam.h
+++ b/arch/x86/include/asm/bootparam.h
@@ -110,4 +110,14 @@ struct boot_params {
 	__u8  _pad9[276];				/* 0xeec */
 } __attribute__((packed));
 
+enum {
+	X86_SUBARCH_PC = 0,
+	X86_SUBARCH_LGUEST,
+	X86_SUBARCH_XEN,
+	X86_SUBARCH_MRST,
+	X86_NR_SUBARCHS,
+};
+
+
+
 #endif /* _ASM_X86_BOOTPARAM_H */
diff --git a/arch/x86/include/asm/do_timer.h b/arch/x86/include/asm/do_timer.h
deleted file mode 100644
index 23ecda0b28a0..000000000000
--- a/arch/x86/include/asm/do_timer.h
+++ /dev/null
@@ -1,16 +0,0 @@
-/* defines for inline arch setup functions */
-#include <linux/clockchips.h>
-
-#include <asm/i8259.h>
-#include <asm/i8253.h>
-
-/**
- * do_timer_interrupt_hook - hook into timer tick
- *
- * Call the pit clock event handler. see asm/i8253.h
- **/
-
-static inline void do_timer_interrupt_hook(void)
-{
-	global_clock_event->event_handler(global_clock_event);
-}
diff --git a/arch/x86/include/asm/e820.h b/arch/x86/include/asm/e820.h
index 7ecba4d85089..40b4e614fe71 100644
--- a/arch/x86/include/asm/e820.h
+++ b/arch/x86/include/asm/e820.h
@@ -126,8 +126,6 @@ extern void e820_reserve_resources(void);
 extern void e820_reserve_resources_late(void);
 extern void setup_memory_map(void);
 extern char *default_machine_specific_memory_setup(void);
-extern char *machine_specific_memory_setup(void);
-extern char *memory_setup(void);
 #endif /* __KERNEL__ */
 #endif /* __ASSEMBLY__ */
 
diff --git a/arch/x86/include/asm/hypervisor.h b/arch/x86/include/asm/hypervisor.h
index 369f5c5d09a1..b78c0941e422 100644
--- a/arch/x86/include/asm/hypervisor.h
+++ b/arch/x86/include/asm/hypervisor.h
@@ -20,7 +20,7 @@
 #ifndef ASM_X86__HYPERVISOR_H
 #define ASM_X86__HYPERVISOR_H
 
-extern unsigned long get_hypervisor_tsc_freq(void);
 extern void init_hypervisor(struct cpuinfo_x86 *c);
+extern void init_hypervisor_platform(void);
 
 #endif
diff --git a/arch/x86/include/asm/io_apic.h b/arch/x86/include/asm/io_apic.h
index 85232d32fcb8..7c7c16cde1f8 100644
--- a/arch/x86/include/asm/io_apic.h
+++ b/arch/x86/include/asm/io_apic.h
@@ -143,6 +143,8 @@ extern int noioapicreroute;
 /* 1 if the timer IRQ uses the '8259A Virtual Wire' mode */
 extern int timer_through_8259;
 
+extern void io_apic_disable_legacy(void);
+
 /*
  * If we use the IO-APIC for IRQ routing, disable automatic
  * assignment of PCI IRQ's.
@@ -176,6 +178,7 @@ extern int setup_ioapic_entry(int apic, int irq,
 			      int polarity, int vector, int pin);
 extern void ioapic_write_entry(int apic, int pin,
 			       struct IO_APIC_route_entry e);
+extern void setup_ioapic_ids_from_mpc(void);
 
 struct mp_ioapic_gsi{
 	int gsi_base;
@@ -187,12 +190,14 @@ int mp_find_ioapic_pin(int ioapic, int gsi);
 void __init mp_register_ioapic(int id, u32 address, u32 gsi_base);
 
 #else  /* !CONFIG_X86_IO_APIC */
+
 #define io_apic_assign_pci_irqs 0
+#define setup_ioapic_ids_from_mpc x86_init_noop
 static const int timer_through_8259 = 0;
 static inline void ioapic_init_mappings(void)	{ }
 static inline void ioapic_insert_resources(void) { }
-
 static inline void probe_nr_irqs_gsi(void)	{ }
+
 #endif
 
 #endif /* _ASM_X86_IO_APIC_H */
diff --git a/arch/x86/include/asm/irq.h b/arch/x86/include/asm/irq.h
index f38481bcd455..ddda6cbed6f4 100644
--- a/arch/x86/include/asm/irq.h
+++ b/arch/x86/include/asm/irq.h
@@ -37,7 +37,6 @@ extern void fixup_irqs(void);
 #endif
 
 extern void (*generic_interrupt_extension)(void);
-extern void init_IRQ(void);
 extern void native_init_IRQ(void);
 extern bool handle_irq(unsigned irq, struct pt_regs *regs);
 
@@ -47,4 +46,6 @@ extern unsigned int do_IRQ(struct pt_regs *regs);
 extern DECLARE_BITMAP(used_vectors, NR_VECTORS);
 extern int vector_used_by_percpu_irq(unsigned int vector);
 
+extern void init_ISA_irqs(void);
+
 #endif /* _ASM_X86_IRQ_H */
diff --git a/arch/x86/include/asm/mpspec.h b/arch/x86/include/asm/mpspec.h
index e2a1bb6d71ea..79c94500c0bb 100644
--- a/arch/x86/include/asm/mpspec.h
+++ b/arch/x86/include/asm/mpspec.h
@@ -4,6 +4,7 @@
 #include <linux/init.h>
 
 #include <asm/mpspec_def.h>
+#include <asm/x86_init.h>
 
 extern int apic_version[MAX_APICS];
 extern int pic_mode;
@@ -41,9 +42,6 @@ extern int quad_local_to_mp_bus_id [NR_CPUS/4][4];
 
 #endif /* CONFIG_X86_64 */
 
-extern void early_find_smp_config(void);
-extern void early_get_smp_config(void);
-
 #if defined(CONFIG_MCA) || defined(CONFIG_EISA)
 extern int mp_bus_id_to_type[MAX_MP_BUSSES];
 #endif
@@ -52,20 +50,55 @@ extern DECLARE_BITMAP(mp_bus_not_pci, MAX_MP_BUSSES);
 
 extern unsigned int boot_cpu_physical_apicid;
 extern unsigned int max_physical_apicid;
-extern int smp_found_config;
 extern int mpc_default_type;
 extern unsigned long mp_lapic_addr;
 
-extern void get_smp_config(void);
+#ifdef CONFIG_X86_LOCAL_APIC
+extern int smp_found_config;
+#else
+# define smp_found_config 0
+#endif
+
+static inline void get_smp_config(void)
+{
+	x86_init.mpparse.get_smp_config(0);
+}
+
+static inline void early_get_smp_config(void)
+{
+	x86_init.mpparse.get_smp_config(1);
+}
+
+static inline void find_smp_config(void)
+{
+	x86_init.mpparse.find_smp_config(1);
+}
+
+static inline void early_find_smp_config(void)
+{
+	x86_init.mpparse.find_smp_config(0);
+}
 
 #ifdef CONFIG_X86_MPPARSE
-extern void find_smp_config(void);
 extern void early_reserve_e820_mpc_new(void);
 extern int enable_update_mptable;
+extern int default_mpc_apic_id(struct mpc_cpu *m);
+extern void default_smp_read_mpc_oem(struct mpc_table *mpc);
+# ifdef CONFIG_X86_IO_APIC
+extern void default_mpc_oem_bus_info(struct mpc_bus *m, char *str);
+# else
+#  define default_mpc_oem_bus_info NULL
+# endif
+extern void default_find_smp_config(unsigned int reserve);
+extern void default_get_smp_config(unsigned int early);
 #else
-static inline void find_smp_config(void) { }
 static inline void early_reserve_e820_mpc_new(void) { }
 #define enable_update_mptable 0
+#define default_mpc_apic_id NULL
+#define default_smp_read_mpc_oem NULL
+#define default_mpc_oem_bus_info NULL
+#define default_find_smp_config x86_init_uint_noop
+#define default_get_smp_config x86_init_uint_noop
 #endif
 
 void __cpuinit generic_processor_info(int apicid, int version);
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index 40d6586af25b..8aebcc41041d 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -24,22 +24,6 @@ static inline void load_sp0(struct tss_struct *tss,
 	PVOP_VCALL2(pv_cpu_ops.load_sp0, tss, thread);
 }
 
-#define ARCH_SETUP			pv_init_ops.arch_setup();
-static inline unsigned long get_wallclock(void)
-{
-	return PVOP_CALL0(unsigned long, pv_time_ops.get_wallclock);
-}
-
-static inline int set_wallclock(unsigned long nowtime)
-{
-	return PVOP_CALL1(int, pv_time_ops.set_wallclock, nowtime);
-}
-
-static inline void (*choose_time_init(void))(void)
-{
-	return pv_time_ops.time_init;
-}
-
 /* The paravirtualized CPUID instruction. */
 static inline void __cpuid(unsigned int *eax, unsigned int *ebx,
 			   unsigned int *ecx, unsigned int *edx)
@@ -245,7 +229,6 @@ static inline unsigned long long paravirt_sched_clock(void)
 {
 	return PVOP_CALL0(unsigned long long, pv_time_ops.sched_clock);
 }
-#define calibrate_tsc() (pv_time_ops.get_tsc_khz())
 
 static inline unsigned long long paravirt_read_pmc(int counter)
 {
@@ -363,34 +346,6 @@ static inline void slow_down_io(void)
 #endif
 }
 
-#ifdef CONFIG_X86_LOCAL_APIC
-static inline void setup_boot_clock(void)
-{
-	PVOP_VCALL0(pv_apic_ops.setup_boot_clock);
-}
-
-static inline void setup_secondary_clock(void)
-{
-	PVOP_VCALL0(pv_apic_ops.setup_secondary_clock);
-}
-#endif
-
-static inline void paravirt_post_allocator_init(void)
-{
-	if (pv_init_ops.post_allocator_init)
-		(*pv_init_ops.post_allocator_init)();
-}
-
-static inline void paravirt_pagetable_setup_start(pgd_t *base)
-{
-	(*pv_mmu_ops.pagetable_setup_start)(base);
-}
-
-static inline void paravirt_pagetable_setup_done(pgd_t *base)
-{
-	(*pv_mmu_ops.pagetable_setup_done)(base);
-}
-
 #ifdef CONFIG_SMP
 static inline void startup_ipi_hook(int phys_apicid, unsigned long start_eip,
 				    unsigned long start_esp)
@@ -948,6 +903,8 @@ static inline unsigned long __raw_local_irq_save(void)
 #undef PVOP_VCALL4
 #undef PVOP_CALL4
 
+extern void default_banner(void);
+
 #else  /* __ASSEMBLY__ */
 
 #define _PVSITE(ptype, clobbers, ops, word, algn)	\
@@ -1088,5 +1045,7 @@ static inline unsigned long __raw_local_irq_save(void)
 #endif	/* CONFIG_X86_32 */
 
 #endif /* __ASSEMBLY__ */
-#endif /* CONFIG_PARAVIRT */
+#else  /* CONFIG_PARAVIRT */
+# define default_banner x86_init_noop
+#endif /* !CONFIG_PARAVIRT */
 #endif /* _ASM_X86_PARAVIRT_H */
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index 25402d0006e7..dd0f5b32489d 100644
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -78,14 +78,6 @@ struct pv_init_ops {
 	 */
 	unsigned (*patch)(u8 type, u16 clobber, void *insnbuf,
 			  unsigned long addr, unsigned len);
-
-	/* Basic arch-specific setup */
-	void (*arch_setup)(void);
-	char *(*memory_setup)(void);
-	void (*post_allocator_init)(void);
-
-	/* Print a banner to identify the environment */
-	void (*banner)(void);
 };
 
 
@@ -96,12 +88,6 @@ struct pv_lazy_ops {
 };
 
 struct pv_time_ops {
-	void (*time_init)(void);
-
-	/* Set and set time of day */
-	unsigned long (*get_wallclock)(void);
-	int (*set_wallclock)(unsigned long);
-
 	unsigned long long (*sched_clock)(void);
 	unsigned long (*get_tsc_khz)(void);
 };
@@ -203,8 +189,6 @@ struct pv_cpu_ops {
 };
 
 struct pv_irq_ops {
-	void (*init_IRQ)(void);
-
 	/*
 	 * Get/set interrupt state.  save_fl and restore_fl are only
 	 * expected to use X86_EFLAGS_IF; all other bits
@@ -229,9 +213,6 @@ struct pv_irq_ops {
 
 struct pv_apic_ops {
 #ifdef CONFIG_X86_LOCAL_APIC
-	void (*setup_boot_clock)(void);
-	void (*setup_secondary_clock)(void);
-
 	void (*startup_ipi_hook)(int phys_apicid,
 				 unsigned long start_eip,
 				 unsigned long start_esp);
@@ -239,15 +220,6 @@ struct pv_apic_ops {
 };
 
 struct pv_mmu_ops {
-	/*
-	 * Called before/after init_mm pagetable setup. setup_start
-	 * may reset %cr3, and may pre-install parts of the pagetable;
-	 * pagetable setup is expected to preserve any existing
-	 * mapping.
-	 */
-	void (*pagetable_setup_start)(pgd_t *pgd_base);
-	void (*pagetable_setup_done)(pgd_t *pgd_base);
-
 	unsigned long (*read_cr2)(void);
 	void (*write_cr2)(unsigned long);
 
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index 4c5b51fdc788..af6fd360ab35 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -56,16 +56,6 @@ extern struct list_head pgd_list;
 #define pte_update(mm, addr, ptep)              do { } while (0)
 #define pte_update_defer(mm, addr, ptep)        do { } while (0)
 
-static inline void __init paravirt_pagetable_setup_start(pgd_t *base)
-{
-	native_pagetable_setup_start(base);
-}
-
-static inline void __init paravirt_pagetable_setup_done(pgd_t *base)
-{
-	native_pagetable_setup_done(base);
-}
-
 #define pgd_val(x)	native_pgd_val(x)
 #define __pgd(x)	native_make_pgd(x)
 
diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h
index 54cb697f4900..7b467bf3c680 100644
--- a/arch/x86/include/asm/pgtable_types.h
+++ b/arch/x86/include/asm/pgtable_types.h
@@ -299,8 +299,8 @@ void set_pte_vaddr(unsigned long vaddr, pte_t pte);
 extern void native_pagetable_setup_start(pgd_t *base);
 extern void native_pagetable_setup_done(pgd_t *base);
 #else
-static inline void native_pagetable_setup_start(pgd_t *base) {}
-static inline void native_pagetable_setup_done(pgd_t *base) {}
+#define native_pagetable_setup_start x86_init_pgd_noop
+#define native_pagetable_setup_done  x86_init_pgd_noop
 #endif
 
 struct seq_file;
diff --git a/arch/x86/include/asm/setup.h b/arch/x86/include/asm/setup.h
index 4093d1ed6db2..18e496c98ff0 100644
--- a/arch/x86/include/asm/setup.h
+++ b/arch/x86/include/asm/setup.h
@@ -5,43 +5,6 @@
 
 #define COMMAND_LINE_SIZE 2048
 
-#ifndef __ASSEMBLY__
-
-/*
- * Any setup quirks to be performed?
- */
-struct mpc_cpu;
-struct mpc_bus;
-struct mpc_oemtable;
-
-struct x86_quirks {
-	int (*arch_pre_time_init)(void);
-	int (*arch_time_init)(void);
-	int (*arch_pre_intr_init)(void);
-	int (*arch_intr_init)(void);
-	int (*arch_trap_init)(void);
-	char * (*arch_memory_setup)(void);
-	int (*mach_get_smp_config)(unsigned int early);
-	int (*mach_find_smp_config)(unsigned int reserve);
-
-	int *mpc_record;
-	int (*mpc_apic_id)(struct mpc_cpu *m);
-	void (*mpc_oem_bus_info)(struct mpc_bus *m, char *name);
-	void (*mpc_oem_pci_bus)(struct mpc_bus *m);
-	void (*smp_read_mpc_oem)(struct mpc_oemtable *oemtable,
-				unsigned short oemsize);
-	int (*setup_ioapic_ids)(void);
-};
-
-extern void x86_quirk_intr_init(void);
-
-extern void x86_quirk_trap_init(void);
-
-extern void x86_quirk_pre_time_init(void);
-extern void x86_quirk_time_init(void);
-
-#endif /* __ASSEMBLY__ */
-
 #ifdef __i386__
 
 #include <linux/pfn.h>
@@ -61,6 +24,7 @@ extern void x86_quirk_time_init(void);
 
 #ifndef __ASSEMBLY__
 #include <asm/bootparam.h>
+#include <asm/x86_init.h>
 
 /* Interrupt control for vSMPowered x86_64 systems */
 #ifdef CONFIG_X86_64
@@ -79,11 +43,16 @@ static inline void visws_early_detect(void) { }
 static inline int is_visws_box(void) { return 0; }
 #endif
 
-extern struct x86_quirks *x86_quirks;
 extern unsigned long saved_video_mode;
 
-#ifndef CONFIG_PARAVIRT
-#define paravirt_post_allocator_init()	do {} while (0)
+extern void reserve_standard_io_resources(void);
+extern void i386_reserve_resources(void);
+extern void setup_default_timer_irq(void);
+
+#ifdef CONFIG_X86_MRST
+extern void x86_mrst_early_setup(void);
+#else
+static inline void x86_mrst_early_setup(void) { }
 #endif
 
 #ifndef _SETUP
diff --git a/arch/x86/include/asm/time.h b/arch/x86/include/asm/time.h
index 50c733aac421..7bdec4e9b739 100644
--- a/arch/x86/include/asm/time.h
+++ b/arch/x86/include/asm/time.h
@@ -4,60 +4,7 @@
 extern void hpet_time_init(void);
 
 #include <asm/mc146818rtc.h>
-#ifdef CONFIG_X86_32
-#include <linux/efi.h>
-
-static inline unsigned long native_get_wallclock(void)
-{
-	unsigned long retval;
-
-	if (efi_enabled)
-		retval = efi_get_time();
-	else
-		retval = mach_get_cmos_time();
-
-	return retval;
-}
-
-static inline int native_set_wallclock(unsigned long nowtime)
-{
-	int retval;
-
-	if (efi_enabled)
-		retval = efi_set_rtc_mmss(nowtime);
-	else
-		retval = mach_set_rtc_mmss(nowtime);
-
-	return retval;
-}
-
-#else
-extern void native_time_init_hook(void);
-
-static inline unsigned long native_get_wallclock(void)
-{
-	return mach_get_cmos_time();
-}
-
-static inline int native_set_wallclock(unsigned long nowtime)
-{
-	return mach_set_rtc_mmss(nowtime);
-}
-
-#endif
 
 extern void time_init(void);
 
-#ifdef CONFIG_PARAVIRT
-#include <asm/paravirt.h>
-#else /* !CONFIG_PARAVIRT */
-
-#define get_wallclock() native_get_wallclock()
-#define set_wallclock(x) native_set_wallclock(x)
-#define choose_time_init() hpet_time_init
-
-#endif /* CONFIG_PARAVIRT */
-
-extern unsigned long __init calibrate_cpu(void);
-
 #endif /* _ASM_X86_TIME_H */
diff --git a/arch/x86/include/asm/timer.h b/arch/x86/include/asm/timer.h
index 20ca9c4d4686..5469630b27f5 100644
--- a/arch/x86/include/asm/timer.h
+++ b/arch/x86/include/asm/timer.h
@@ -8,20 +8,16 @@
 #define TICK_SIZE (tick_nsec / 1000)
 
 unsigned long long native_sched_clock(void);
-unsigned long native_calibrate_tsc(void);
+extern int recalibrate_cpu_khz(void);
 
-#ifdef CONFIG_X86_32
+#if defined(CONFIG_X86_32) && defined(CONFIG_X86_IO_APIC)
 extern int timer_ack;
-extern irqreturn_t timer_interrupt(int irq, void *dev_id);
-#endif /* CONFIG_X86_32 */
-extern int recalibrate_cpu_khz(void);
+#else
+# define timer_ack (0)
+#endif
 
 extern int no_timer_check;
 
-#ifndef CONFIG_PARAVIRT
-#define calibrate_tsc() native_calibrate_tsc()
-#endif
-
 /* Accelerators for sched_clock()
  * convert from cycles(64bits) => nanoseconds (64bits)
  *  basic equation:
diff --git a/arch/x86/include/asm/tsc.h b/arch/x86/include/asm/tsc.h
index 38ae163cc91b..c0427295e8f5 100644
--- a/arch/x86/include/asm/tsc.h
+++ b/arch/x86/include/asm/tsc.h
@@ -48,7 +48,8 @@ static __always_inline cycles_t vget_cycles(void)
 extern void tsc_init(void);
 extern void mark_tsc_unstable(char *reason);
 extern int unsynchronized_tsc(void);
-int check_tsc_unstable(void);
+extern int check_tsc_unstable(void);
+extern unsigned long native_calibrate_tsc(void);
 
 /*
  * Boot-time check whether the TSCs are synchronized across
diff --git a/arch/x86/include/asm/vgtod.h b/arch/x86/include/asm/vgtod.h
index dc27a69e5d2a..3d61e204826f 100644
--- a/arch/x86/include/asm/vgtod.h
+++ b/arch/x86/include/asm/vgtod.h
@@ -21,6 +21,7 @@ struct vsyscall_gtod_data {
 		u32	shift;
 	} clock;
 	struct timespec wall_to_monotonic;
+	struct timespec wall_time_coarse;
 };
 extern struct vsyscall_gtod_data __vsyscall_gtod_data
 __section_vsyscall_gtod_data;
diff --git a/arch/x86/include/asm/vmware.h b/arch/x86/include/asm/vmware.h
index c11b7e100d83..e49ed6d2fd4e 100644
--- a/arch/x86/include/asm/vmware.h
+++ b/arch/x86/include/asm/vmware.h
@@ -20,7 +20,7 @@
 #ifndef ASM_X86__VMWARE_H
 #define ASM_X86__VMWARE_H
 
-extern unsigned long vmware_get_tsc_khz(void);
+extern void vmware_platform_setup(void);
 extern int vmware_platform(void);
 extern void vmware_set_feature_bits(struct cpuinfo_x86 *c);
 
diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
new file mode 100644
index 000000000000..2c756fd4ab0e
--- /dev/null
+++ b/arch/x86/include/asm/x86_init.h
@@ -0,0 +1,133 @@
+#ifndef _ASM_X86_PLATFORM_H
+#define _ASM_X86_PLATFORM_H
+
+#include <asm/pgtable_types.h>
+#include <asm/bootparam.h>
+
+struct mpc_bus;
+struct mpc_cpu;
+struct mpc_table;
+
+/**
+ * struct x86_init_mpparse - platform specific mpparse ops
+ * @mpc_record:			platform specific mpc record accounting
+ * @setup_ioapic_ids:		platform specific ioapic id override
+ * @mpc_apic_id:		platform specific mpc apic id assignment
+ * @smp_read_mpc_oem:		platform specific oem mpc table setup
+ * @mpc_oem_pci_bus:		platform specific pci bus setup (default NULL)
+ * @mpc_oem_bus_info:		platform specific mpc bus info
+ * @find_smp_config:		find the smp configuration
+ * @get_smp_config:		get the smp configuration
+ */
+struct x86_init_mpparse {
+	void (*mpc_record)(unsigned int mode);
+	void (*setup_ioapic_ids)(void);
+	int (*mpc_apic_id)(struct mpc_cpu *m);
+	void (*smp_read_mpc_oem)(struct mpc_table *mpc);
+	void (*mpc_oem_pci_bus)(struct mpc_bus *m);
+	void (*mpc_oem_bus_info)(struct mpc_bus *m, char *name);
+	void (*find_smp_config)(unsigned int reserve);
+	void (*get_smp_config)(unsigned int early);
+};
+
+/**
+ * struct x86_init_resources - platform specific resource related ops
+ * @probe_roms:			probe BIOS roms
+ * @reserve_resources:		reserve the standard resources for the
+ *				platform
+ * @memory_setup:		platform specific memory setup
+ *
+ */
+struct x86_init_resources {
+	void (*probe_roms)(void);
+	void (*reserve_resources)(void);
+	char *(*memory_setup)(void);
+};
+
+/**
+ * struct x86_init_irqs - platform specific interrupt setup
+ * @pre_vector_init:		init code to run before interrupt vectors
+ *				are set up.
+ * @intr_init:			interrupt init code
+ * @trap_init:			platform specific trap setup
+ */
+struct x86_init_irqs {
+	void (*pre_vector_init)(void);
+	void (*intr_init)(void);
+	void (*trap_init)(void);
+};
+
+/**
+ * struct x86_init_oem - oem platform specific customizing functions
+ * @arch_setup:			platform specific architecure setup
+ * @banner:			print a platform specific banner
+ */
+struct x86_init_oem {
+	void (*arch_setup)(void);
+	void (*banner)(void);
+};
+
+/**
+ * struct x86_init_paging - platform specific paging functions
+ * @pagetable_setup_start:	platform specific pre paging_init() call
+ * @pagetable_setup_done:	platform specific post paging_init() call
+ */
+struct x86_init_paging {
+	void (*pagetable_setup_start)(pgd_t *base);
+	void (*pagetable_setup_done)(pgd_t *base);
+};
+
+/**
+ * struct x86_init_timers - platform specific timer setup
+ * @setup_perpcu_clockev:	set up the per cpu clock event device for the
+ *				boot cpu
+ * @tsc_pre_init:		platform function called before TSC init
+ * @timer_init:			initialize the platform timer (default PIT/HPET)
+ */
+struct x86_init_timers {
+	void (*setup_percpu_clockev)(void);
+	void (*tsc_pre_init)(void);
+	void (*timer_init)(void);
+};
+
+/**
+ * struct x86_init_ops - functions for platform specific setup
+ *
+ */
+struct x86_init_ops {
+	struct x86_init_resources	resources;
+	struct x86_init_mpparse		mpparse;
+	struct x86_init_irqs		irqs;
+	struct x86_init_oem		oem;
+	struct x86_init_paging		paging;
+	struct x86_init_timers		timers;
+};
+
+/**
+ * struct x86_cpuinit_ops - platform specific cpu hotplug setups
+ * @setup_percpu_clockev:	set up the per cpu clock event device
+ */
+struct x86_cpuinit_ops {
+	void (*setup_percpu_clockev)(void);
+};
+
+/**
+ * struct x86_platform_ops - platform specific runtime functions
+ * @calibrate_tsc:		calibrate TSC
+ * @get_wallclock:		get time from HW clock like RTC etc.
+ * @set_wallclock:		set time back to HW clock
+ */
+struct x86_platform_ops {
+	unsigned long (*calibrate_tsc)(void);
+	unsigned long (*get_wallclock)(void);
+	int (*set_wallclock)(unsigned long nowtime);
+};
+
+extern struct x86_init_ops x86_init;
+extern struct x86_cpuinit_ops x86_cpuinit;
+extern struct x86_platform_ops x86_platform;
+
+extern void x86_init_noop(void);
+extern void x86_init_uint_noop(unsigned int unused);
+
+#endif