33 files changed, 344 insertions, 88 deletions

diff --git a/include/asm-x86/amd_iommu_types.h b/include/asm-x86/amd_iommu_types.h
index 7bfcb47cc452..22aa58ca1991 100644
--- a/include/asm-x86/amd_iommu_types.h
+++ b/include/asm-x86/amd_iommu_types.h
@@ -27,13 +27,12 @@
 /*
  * some size calculation constants
  */
-#define DEV_TABLE_ENTRY_SIZE            256
+#define DEV_TABLE_ENTRY_SIZE            32
 #define ALIAS_TABLE_ENTRY_SIZE          2
 #define RLOOKUP_TABLE_ENTRY_SIZE        (sizeof(void *))
 
 /* helper macros */
 #define LOW_U32(x) ((x) & ((1ULL << 32)-1))
-#define HIGH_U32(x) (LOW_U32((x) >> 32))
 
 /* Length of the MMIO region for the AMD IOMMU */
 #define MMIO_REGION_LENGTH       0x4000
@@ -158,78 +157,170 @@
 
 #define MAX_DOMAIN_ID 65536
 
+/*
+ * This structure contains generic data for  IOMMU protection domains
+ * independent of their use.
+ */
 struct protection_domain {
-        spinlock_t lock;
-        u16 id;
-        int mode;
-        u64 *pt_root;
-        void *priv;
+        spinlock_t lock; /* mostly used to lock the page table*/
+        u16 id;          /* the domain id written to the device table */
+        int mode;        /* paging mode (0-6 levels) */
+        u64 *pt_root;    /* page table root pointer */
+        void *priv;      /* private data */
 };
 
+/*
+ * Data container for a dma_ops specific protection domain
+ */
 struct dma_ops_domain {
         struct list_head list;
+
+        /* generic protection domain information */
         struct protection_domain domain;
+
+        /* size of the aperture for the mappings */
         unsigned long aperture_size;
+
+        /* address we start to search for free addresses */
         unsigned long next_bit;
+
+        /* address allocation bitmap */
         unsigned long *bitmap;
+
+        /*
+         * Array of PTE pages for the aperture. In this array we save all the
+         * leaf pages of the domain page table used for the aperture. This way
+         * we don't need to walk the page table to find a specific PTE. We can
+         * just calculate its address in constant time.
+         */
         u64 **pte_pages;
 };
 
+/*
+ * Structure where we save information about one hardware AMD IOMMU in the
+ * system.
+ */
 struct amd_iommu {
         struct list_head list;
+
+        /* locks the accesses to the hardware */
         spinlock_t lock;
 
+        /* device id of this IOMMU */
         u16 devid;
+        /*
+         * Capability pointer. There could be more than one IOMMU per PCI
+         * device function if there are more than one AMD IOMMU capability
+         * pointers.
+         */
         u16 cap_ptr;
 
+        /* physical address of MMIO space */
         u64 mmio_phys;
+        /* virtual address of MMIO space */
         u8 *mmio_base;
+
+        /* capabilities of that IOMMU read from ACPI */
         u32 cap;
+
+        /* first device this IOMMU handles. read from PCI */
         u16 first_device;
+        /* last device this IOMMU handles. read from PCI */
         u16 last_device;
+
+        /* start of exclusion range of that IOMMU */
         u64 exclusion_start;
+        /* length of exclusion range of that IOMMU */
         u64 exclusion_length;
 
+        /* command buffer virtual address */
         u8 *cmd_buf;
+        /* size of command buffer */
         u32 cmd_buf_size;
 
+        /* if one, we need to send a completion wait command */
         int need_sync;
 
+        /* default dma_ops domain for that IOMMU */
         struct dma_ops_domain *default_dom;
 };
 
+/*
+ * List with all IOMMUs in the system. This list is not locked because it is
+ * only written and read at driver initialization or suspend time
+ */
 extern struct list_head amd_iommu_list;
 
+/*
+ * Structure defining one entry in the device table
+ */
 struct dev_table_entry {
         u32 data[8];
 };
 
+/*
+ * One entry for unity mappings parsed out of the ACPI table.
+ */
 struct unity_map_entry {
         struct list_head list;
+
+        /* starting device id this entry is used for (including) */
         u16 devid_start;
+        /* end device id this entry is used for (including) */
         u16 devid_end;
+
+        /* start address to unity map (including) */
         u64 address_start;
+        /* end address to unity map (including) */
         u64 address_end;
+
+        /* required protection */
         int prot;
 };
 
+/*
+ * List of all unity mappings. It is not locked because as runtime it is only
+ * read. It is created at ACPI table parsing time.
+ */
 extern struct list_head amd_iommu_unity_map;
 
-/* data structures for device handling */
+/*
+ * Data structures for device handling
+ */
+
+/*
+ * Device table used by hardware. Read and write accesses by software are
+ * locked with the amd_iommu_pd_table lock.
+ */
 extern struct dev_table_entry *amd_iommu_dev_table;
+
+/*
+ * Alias table to find requestor ids to device ids. Not locked because only
+ * read on runtime.
+ */
 extern u16 *amd_iommu_alias_table;
+
+/*
+ * Reverse lookup table to find the IOMMU which translates a specific device.
+ */
 extern struct amd_iommu **amd_iommu_rlookup_table;
 
+/* size of the dma_ops aperture as power of 2 */
 extern unsigned amd_iommu_aperture_order;
 
+/* largest PCI device id we expect translation requests for */
 extern u16 amd_iommu_last_bdf;
 
 /* data structures for protection domain handling */
 extern struct protection_domain **amd_iommu_pd_table;
+
+/* allocation bitmap for domain ids */
 extern unsigned long *amd_iommu_pd_alloc_bitmap;
 
+/* will be 1 if device isolation is enabled */
 extern int amd_iommu_isolate;
 
+/* takes a PCI device id and prints it out in a readable form */
 static inline void print_devid(u16 devid, int nl)
 {
         int bus = devid >> 8;
@@ -241,4 +332,11 @@ static inline void print_devid(u16 devid, int nl)
                 printk("\n");
 }
 
+/* takes bus and device/function and returns the device id
+ * FIXME: should that be in generic PCI code? */
+static inline u16 calc_devid(u8 bus, u8 devfn)
+{
+        return (((u16)bus) << 8) | devfn;
+}
+
 #endif
diff --git a/include/asm-x86/apic.h b/include/asm-x86/apic.h
index 4e2c1e517f06..b96460a7190d 100644
--- a/include/asm-x86/apic.h
+++ b/include/asm-x86/apic.h
@@ -3,6 +3,8 @@
 
 #include <linux/pm.h>
 #include <linux/delay.h>
+
+#include <asm/alternative.h>
 #include <asm/fixmap.h>
 #include <asm/apicdef.h>
 #include <asm/processor.h>
@@ -10,7 +12,7 @@
 
 #define ARCH_APICTIMER_STOPS_ON_C3      1
 
-#define Dprintk(x...)
+#define Dprintk printk
 
 /*
  * Debugging macros
@@ -35,7 +37,7 @@ extern void generic_apic_probe(void);
 
 #ifdef CONFIG_X86_LOCAL_APIC
 
-extern int apic_verbosity;
+extern unsigned int apic_verbosity;
 extern int local_apic_timer_c2_ok;
 
 extern int ioapic_force;
@@ -48,7 +50,6 @@ extern int disable_apic;
 #include <asm/paravirt.h>
 #else
 #define apic_write native_apic_write
-#define apic_write_atomic native_apic_write_atomic
 #define apic_read native_apic_read
 #define setup_boot_clock setup_boot_APIC_clock
 #define setup_secondary_clock setup_secondary_APIC_clock
@@ -58,12 +59,11 @@ extern int is_vsmp_box(void);
 
 static inline void native_apic_write(unsigned long reg, u32 v)
 {
-        *((volatile u32 *)(APIC_BASE + reg)) = v;
-}
+        volatile u32 *addr = (volatile u32 *)(APIC_BASE + reg);
 
-static inline void native_apic_write_atomic(unsigned long reg, u32 v)
-{
-        (void)xchg((u32 *)(APIC_BASE + reg), v);
+        alternative_io("movl %0, %1", "xchgl %0, %1", X86_FEATURE_11AP,
+                       ASM_OUTPUT2("=r" (v), "=m" (*addr)),
+                       ASM_OUTPUT2("0" (v), "m" (*addr)));
 }
 
 static inline u32 native_apic_read(unsigned long reg)
@@ -75,16 +75,6 @@ extern void apic_wait_icr_idle(void);
 extern u32 safe_apic_wait_icr_idle(void);
 extern int get_physical_broadcast(void);
 
-#ifdef CONFIG_X86_GOOD_APIC
-# define FORCE_READ_AROUND_WRITE 0
-# define apic_read_around(x)
-# define apic_write_around(x, y) apic_write((x), (y))
-#else
-# define FORCE_READ_AROUND_WRITE 1
-# define apic_read_around(x) apic_read(x)
-# define apic_write_around(x, y) apic_write_atomic((x), (y))
-#endif
-
 static inline void ack_APIC_irq(void)
 {
         /*
@@ -95,7 +85,7 @@ static inline void ack_APIC_irq(void)
          */
 
         /* Docs say use 0 for future compatibility */
-        apic_write_around(APIC_EOI, 0);
+        apic_write(APIC_EOI, 0);
 }
 
 extern int lapic_get_maxlvt(void);
diff --git a/include/asm-x86/arch_hooks.h b/include/asm-x86/arch_hooks.h
index 768aee8a04ef..8411750ceb63 100644
--- a/include/asm-x86/arch_hooks.h
+++ b/include/asm-x86/arch_hooks.h
@@ -21,6 +21,7 @@ extern void intr_init_hook(void);
 extern void pre_intr_init_hook(void);
 extern void pre_setup_arch_hook(void);
 extern void trap_init_hook(void);
+extern void pre_time_init_hook(void);
 extern void time_init_hook(void);
 extern void mca_nmi_hook(void);
 
diff --git a/include/asm-x86/bitops.h b/include/asm-x86/bitops.h
index 96b1829cea15..cfb2b64f76e7 100644
--- a/include/asm-x86/bitops.h
+++ b/include/asm-x86/bitops.h
@@ -356,7 +356,7 @@ static inline unsigned long ffz(unsigned long word)
  * __fls: find last set bit in word
  * @word: The word to search
  *
- * Undefined if no zero exists, so code should check against ~0UL first.
+ * Undefined if no set bit exists, so code should check against 0 first.
  */
 static inline unsigned long __fls(unsigned long word)
 {
diff --git a/include/asm-x86/calling.h b/include/asm-x86/calling.h
index f13e62e2cb3e..2bc162e0ec6e 100644
--- a/include/asm-x86/calling.h
+++ b/include/asm-x86/calling.h
@@ -104,7 +104,7 @@
         .endif
         .endm
 
-        .macro LOAD_ARGS offset
+        .macro LOAD_ARGS offset, skiprax=0
         movq \offset(%rsp),    %r11
         movq \offset+8(%rsp),  %r10
         movq \offset+16(%rsp), %r9
@@ -113,7 +113,10 @@
         movq \offset+48(%rsp), %rdx
         movq \offset+56(%rsp), %rsi
         movq \offset+64(%rsp), %rdi
+        .if \skiprax
+        .else
         movq \offset+72(%rsp), %rax
+        .endif
         .endm
 
 #define REST_SKIP       6*8
@@ -165,4 +168,3 @@
         .macro icebp
         .byte 0xf1
         .endm
-
diff --git a/include/asm-x86/cpufeature.h b/include/asm-x86/cpufeature.h
index 75ef959db329..2f5a792b0acc 100644
--- a/include/asm-x86/cpufeature.h
+++ b/include/asm-x86/cpufeature.h
@@ -79,6 +79,7 @@
 #define X86_FEATURE_REP_GOOD    (3*32+16) /* rep microcode works well on this CPU */
 #define X86_FEATURE_MFENCE_RDTSC (3*32+17) /* Mfence synchronizes RDTSC */
 #define X86_FEATURE_LFENCE_RDTSC (3*32+18) /* Lfence synchronizes RDTSC */
+#define X86_FEATURE_11AP        (3*32+19)  /* Bad local APIC aka 11AP */
 
 /* Intel-defined CPU features, CPUID level 0x00000001 (ecx), word 4 */
 #define X86_FEATURE_XMM3        (4*32+ 0) /* Streaming SIMD Extensions-3 */
diff --git a/include/asm-x86/dma-mapping.h b/include/asm-x86/dma-mapping.h
index a1a4dc7fe6ec..c2ddd3d1b883 100644
--- a/include/asm-x86/dma-mapping.h
+++ b/include/asm-x86/dma-mapping.h
@@ -14,7 +14,6 @@ extern dma_addr_t bad_dma_address;
 extern int iommu_merge;
 extern struct device fallback_dev;
 extern int panic_on_overflow;
-extern int forbid_dac;
 extern int force_iommu;
 
 struct dma_mapping_ops {
diff --git a/include/asm-x86/e820.h b/include/asm-x86/e820.h
index 06633b01dd5b..16a31e2c7c57 100644
--- a/include/asm-x86/e820.h
+++ b/include/asm-x86/e820.h
@@ -90,6 +90,14 @@ static inline void e820_mark_nosave_regions(unsigned long limit_pfn)
 }
 #endif
 
+#ifdef CONFIG_MEMTEST
+extern void early_memtest(unsigned long start, unsigned long end);
+#else
+static inline void early_memtest(unsigned long start, unsigned long end)
+{
+}
+#endif
+
 extern unsigned long end_user_pfn;
 
 extern u64 find_e820_area(u64 start, u64 end, u64 size, u64 align);
diff --git a/include/asm-x86/fixmap_32.h b/include/asm-x86/fixmap_32.h
index aae2f0501a40..f1ac2b2167d7 100644
--- a/include/asm-x86/fixmap_32.h
+++ b/include/asm-x86/fixmap_32.h
@@ -90,13 +90,13 @@ enum fixed_addresses {
          * 256 temporary boot-time mappings, used by early_ioremap(),
          * before ioremap() is functional.
          *
-         * We round it up to the next 512 pages boundary so that we
+         * We round it up to the next 256 pages boundary so that we
          * can have a single pgd entry and a single pte table:
          */
 #define NR_FIX_BTMAPS           64
 #define FIX_BTMAPS_NESTING      4
-        FIX_BTMAP_END = __end_of_permanent_fixed_addresses + 512 -
-                        (__end_of_permanent_fixed_addresses & 511),
+        FIX_BTMAP_END = __end_of_permanent_fixed_addresses + 256 -
+                        (__end_of_permanent_fixed_addresses & 255),
         FIX_BTMAP_BEGIN = FIX_BTMAP_END + NR_FIX_BTMAPS*FIX_BTMAPS_NESTING - 1,
         FIX_WP_TEST,
 #ifdef CONFIG_ACPI
diff --git a/include/asm-x86/ftrace.h b/include/asm-x86/ftrace.h
index c184441133f2..5c68b32ee1c8 100644
--- a/include/asm-x86/ftrace.h
+++ b/include/asm-x86/ftrace.h
@@ -1,5 +1,5 @@
 #ifndef _ASM_X86_FTRACE
-#define _ASM_SPARC64_FTRACE
+#define _ASM_X86_FTRACE
 
 #ifdef CONFIG_FTRACE
 #define MCOUNT_ADDR             ((long)(mcount))
diff --git a/include/asm-x86/gart.h b/include/asm-x86/gart.h
index 33b9aeeb35a2..3f62a83887f3 100644
--- a/include/asm-x86/gart.h
+++ b/include/asm-x86/gart.h
@@ -2,7 +2,6 @@
 #define _ASM_X8664_GART_H 1
 
 #include <asm/e820.h>
-#include <asm/iommu.h>
 
 extern void set_up_gart_resume(u32, u32);
 
diff --git a/include/asm-x86/iommu.h b/include/asm-x86/iommu.h
index 068c9a40aa5b..d63166fb3ab7 100644
--- a/include/asm-x86/iommu.h
+++ b/include/asm-x86/iommu.h
@@ -25,10 +25,18 @@ extern void gart_iommu_hole_init(void);
 static inline void early_gart_iommu_check(void)
 {
 }
-
+static inline void gart_iommu_init(void)
+{
+}
 static inline void gart_iommu_shutdown(void)
 {
 }
+static inline void gart_parse_options(char *options)
+{
+}
+static inline void gart_iommu_hole_init(void)
+{
+}
 #endif
 
 #endif
diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h
index f995783b1fdb..fdde0bedaa90 100644
--- a/include/asm-x86/kvm_host.h
+++ b/include/asm-x86/kvm_host.h
@@ -703,9 +703,11 @@ enum {
                                                 vcpu, 0, 0, 0, 0, 0, 0)
 
 #ifdef CONFIG_64BIT
-#define KVM_EX_ENTRY ".quad"
+# define KVM_EX_ENTRY ".quad"
+# define KVM_EX_PUSH "pushq"
 #else
-#define KVM_EX_ENTRY ".long"
+# define KVM_EX_ENTRY ".long"
+# define KVM_EX_PUSH "pushl"
 #endif
 
 /*
@@ -719,7 +721,7 @@ asmlinkage void kvm_handle_fault_on_reboot(void);
         "666: " insn "\n\t" \
         ".pushsection .text.fixup, \"ax\" \n" \
         "667: \n\t" \
-        "push $666b \n\t" \
+        KVM_EX_PUSH " $666b \n\t" \
         "jmp kvm_handle_fault_on_reboot \n\t" \
         ".popsection \n\t" \
         ".pushsection __ex_table, \"a\" \n\t" \
diff --git a/include/asm-x86/mach-bigsmp/mach_apic.h b/include/asm-x86/mach-bigsmp/mach_apic.h
index 017c8c19ad8f..c3b9dc6970c9 100644
--- a/include/asm-x86/mach-bigsmp/mach_apic.h
+++ b/include/asm-x86/mach-bigsmp/mach_apic.h
@@ -63,9 +63,9 @@ static inline void init_apic_ldr(void)
         unsigned long val;
         int cpu = smp_processor_id();
 
-        apic_write_around(APIC_DFR, APIC_DFR_VALUE);
+        apic_write(APIC_DFR, APIC_DFR_VALUE);
         val = calculate_ldr(cpu);
-        apic_write_around(APIC_LDR, val);
+        apic_write(APIC_LDR, val);
 }
 
 static inline void setup_apic_routing(void)
diff --git a/include/asm-x86/mach-default/mach_apic.h b/include/asm-x86/mach-default/mach_apic.h
index 0b2cde5e1b74..f3226b9a6b82 100644
--- a/include/asm-x86/mach-default/mach_apic.h
+++ b/include/asm-x86/mach-default/mach_apic.h
@@ -46,10 +46,10 @@ static inline void init_apic_ldr(void)
 {
         unsigned long val;
 
-        apic_write_around(APIC_DFR, APIC_DFR_VALUE);
+        apic_write(APIC_DFR, APIC_DFR_VALUE);
         val = apic_read(APIC_LDR) & ~APIC_LDR_MASK;
         val |= SET_APIC_LOGICAL_ID(1UL << smp_processor_id());
-        apic_write_around(APIC_LDR, val);
+        apic_write(APIC_LDR, val);
 }
 
 static inline int apic_id_registered(void)
diff --git a/include/asm-x86/mach-es7000/mach_apic.h b/include/asm-x86/mach-es7000/mach_apic.h
index fbc8ad256f5a..0a3fdf930672 100644
--- a/include/asm-x86/mach-es7000/mach_apic.h
+++ b/include/asm-x86/mach-es7000/mach_apic.h
@@ -66,9 +66,9 @@ static inline void init_apic_ldr(void)
         unsigned long val;
         int cpu = smp_processor_id();
 
-        apic_write_around(APIC_DFR, APIC_DFR_VALUE);
+        apic_write(APIC_DFR, APIC_DFR_VALUE);
         val = calculate_ldr(cpu);
-        apic_write_around(APIC_LDR, val);
+        apic_write(APIC_LDR, val);
 }
 
 #ifndef CONFIG_X86_GENERICARCH
diff --git a/include/asm-x86/mach-generic/mach_mpspec.h b/include/asm-x86/mach-generic/mach_mpspec.h
index 9ef0b941bb22..c83c120be538 100644
--- a/include/asm-x86/mach-generic/mach_mpspec.h
+++ b/include/asm-x86/mach-generic/mach_mpspec.h
@@ -7,4 +7,6 @@
 /* Maximum 256 PCI busses, plus 1 ISA bus in each of 4 cabinets. */
 #define MAX_MP_BUSSES 260
 
+extern void numaq_mps_oem_check(struct mp_config_table *mpc, char *oem,
+                                char *productid);
 #endif /* __ASM_MACH_MPSPEC_H */
diff --git a/include/asm-x86/mach-summit/mach_apic.h b/include/asm-x86/mach-summit/mach_apic.h
index 1f76c2e70232..75d2c95005d7 100644
--- a/include/asm-x86/mach-summit/mach_apic.h
+++ b/include/asm-x86/mach-summit/mach_apic.h
@@ -63,10 +63,10 @@ static inline void init_apic_ldr(void)
          * BIOS puts 5 CPUs in one APIC cluster, we're hosed. */
         BUG_ON(count >= XAPIC_DEST_CPUS_SHIFT);
         id = my_cluster | (1UL << count);
-        apic_write_around(APIC_DFR, APIC_DFR_VALUE);
+        apic_write(APIC_DFR, APIC_DFR_VALUE);
         val = apic_read(APIC_LDR) & ~APIC_LDR_MASK;
         val |= SET_APIC_LOGICAL_ID(id);
-        apic_write_around(APIC_LDR, val);
+        apic_write(APIC_LDR, val);
 }
 
 static inline int multi_timer_check(int apic, int irq)
diff --git a/include/asm-x86/mach-visws/entry_arch.h b/include/asm-x86/mach-visws/entry_arch.h
deleted file mode 100644
index 86be554342d4..000000000000
--- a/include/asm-x86/mach-visws/entry_arch.h
+++ /dev/null
@@ -1,5 +0,0 @@
-/*
- * VISWS uses the standard Linux entry points:
- */
-
-#include "../mach-default/entry_arch.h"
diff --git a/include/asm-x86/mach-visws/mach_apic.h b/include/asm-x86/mach-visws/mach_apic.h
deleted file mode 100644
index 6943e7a1d0e6..000000000000
--- a/include/asm-x86/mach-visws/mach_apic.h
+++ /dev/null
@@ -1 +0,0 @@
-#include "../mach-default/mach_apic.h"
diff --git a/include/asm-x86/mach-visws/mach_apicdef.h b/include/asm-x86/mach-visws/mach_apicdef.h
deleted file mode 100644
index 42711d152a93..000000000000
--- a/include/asm-x86/mach-visws/mach_apicdef.h
+++ /dev/null
@@ -1 +0,0 @@
-#include "../mach-default/mach_apicdef.h"
diff --git a/include/asm-x86/mach-visws/setup_arch.h b/include/asm-x86/mach-visws/setup_arch.h
deleted file mode 100644
index fa4766ca2d10..000000000000
--- a/include/asm-x86/mach-visws/setup_arch.h
+++ /dev/null
@@ -1 +0,0 @@
-#include "../mach-default/setup_arch.h"
diff --git a/include/asm-x86/mach-visws/smpboot_hooks.h b/include/asm-x86/mach-visws/smpboot_hooks.h
deleted file mode 100644
index e4433ca88715..000000000000
--- a/include/asm-x86/mach-visws/smpboot_hooks.h
+++ /dev/null
@@ -1 +0,0 @@
-#include "../mach-default/smpboot_hooks.h"
diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h
index 27c9f22ba095..aec9767836b6 100644
--- a/include/asm-x86/paravirt.h
+++ b/include/asm-x86/paravirt.h
@@ -205,7 +205,6 @@ struct pv_apic_ops {
          * these shouldn't be in this interface.
          */
         void (*apic_write)(unsigned long reg, u32 v);
-        void (*apic_write_atomic)(unsigned long reg, u32 v);
         u32 (*apic_read)(unsigned long reg);
         void (*setup_boot_clock)(void);
         void (*setup_secondary_clock)(void);
@@ -907,11 +906,6 @@ static inline void apic_write(unsigned long reg, u32 v)
         PVOP_VCALL2(pv_apic_ops.apic_write, reg, v);
 }
 
-static inline void apic_write_atomic(unsigned long reg, u32 v)
-{
-        PVOP_VCALL2(pv_apic_ops.apic_write_atomic, reg, v);
-}
-
 static inline u32 apic_read(unsigned long reg)
 {
         return PVOP_CALL1(unsigned long, pv_apic_ops.apic_read, reg);
diff --git a/include/asm-x86/processor.h b/include/asm-x86/processor.h
index 55402d2ab938..15cb82a44e89 100644
--- a/include/asm-x86/processor.h
+++ b/include/asm-x86/processor.h
@@ -722,8 +722,6 @@ static inline void __sti_mwait(unsigned long eax, unsigned long ecx)
 
 extern void mwait_idle_with_hints(unsigned long eax, unsigned long ecx);
 
-extern int                      force_mwait;
-
 extern void select_idle_routine(const struct cpuinfo_x86 *c);
 
 extern unsigned long            boot_option_idle_override;
diff --git a/include/asm-x86/ptrace-abi.h b/include/asm-x86/ptrace-abi.h
index f224eb3c3157..72e7b9db29bb 100644
--- a/include/asm-x86/ptrace-abi.h
+++ b/include/asm-x86/ptrace-abi.h
@@ -73,11 +73,11 @@
 
 #ifdef __x86_64__
 # define PTRACE_ARCH_PRCTL        30
-#else
-# define PTRACE_SYSEMU            31
-# define PTRACE_SYSEMU_SINGLESTEP 32
 #endif
 
+#define PTRACE_SYSEMU             31
+#define PTRACE_SYSEMU_SINGLESTEP  32
+
 #define PTRACE_SINGLEBLOCK      33      /* resume execution until next branch */
 
 #ifndef __ASSEMBLY__
diff --git a/include/asm-x86/segment.h b/include/asm-x86/segment.h
index dfc8601c0892..646452ea9ea3 100644
--- a/include/asm-x86/segment.h
+++ b/include/asm-x86/segment.h
@@ -1,6 +1,15 @@
 #ifndef _ASM_X86_SEGMENT_H_
 #define _ASM_X86_SEGMENT_H_
 
+/* Constructor for a conventional segment GDT (or LDT) entry */
+/* This is a macro so it can be used in initializers */
+#define GDT_ENTRY(flags, base, limit)                   \
+        ((((base)  & 0xff000000ULL) << (56-24)) |       \
+         (((flags) & 0x0000f0ffULL) << 40) |            \
+         (((limit) & 0x000f0000ULL) << (48-16)) |       \
+         (((base)  & 0x00ffffffULL) << 16) |            \
+         (((limit) & 0x0000ffffULL)))
+
 /* Simple and small GDT entries for booting only */
 
 #define GDT_ENTRY_BOOT_CS       2
diff --git a/include/asm-x86/setup.h b/include/asm-x86/setup.h
index 659492624e74..a07c6f1c01e1 100644
--- a/include/asm-x86/setup.h
+++ b/include/asm-x86/setup.h
@@ -19,13 +19,28 @@ static inline int is_visws_box(void) { return 0; }
 /*
  * Any setup quirks to be performed?
  */
-extern int (*arch_time_init_quirk)(void);
-extern int (*arch_pre_intr_init_quirk)(void);
-extern int (*arch_intr_init_quirk)(void);
-extern int (*arch_trap_init_quirk)(void);
-extern char * (*arch_memory_setup_quirk)(void);
-extern int (*mach_get_smp_config_quirk)(unsigned int early);
-extern int (*mach_find_smp_config_quirk)(unsigned int reserve);
+struct mpc_config_processor;
+struct mpc_config_bus;
+struct mp_config_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_config_processor *m);
+        void (*mpc_oem_bus_info)(struct mpc_config_bus *m, char *name);
+        void (*mpc_oem_pci_bus)(struct mpc_config_bus *m);
+        void (*smp_read_mpc_oem)(struct mp_config_oemtable *oemtable,
+                                    unsigned short oemsize);
+};
+
+extern struct x86_quirks *x86_quirks;
 
 #ifndef CONFIG_PARAVIRT
 #define paravirt_post_allocator_init()  do {} while (0)
diff --git a/include/asm-x86/signal.h b/include/asm-x86/signal.h
index f15186d39c69..6dac49364e95 100644
--- a/include/asm-x86/signal.h
+++ b/include/asm-x86/signal.h
@@ -181,12 +181,12 @@ typedef struct sigaltstack {
 #ifdef __KERNEL__
 #include <asm/sigcontext.h>
 
-#ifdef __386__
+#ifdef __i386__
 
 #define __HAVE_ARCH_SIG_BITOPS
 
 #define sigaddset(set,sig)                  \
-        (__builtin_constantp(sig)           \
+        (__builtin_constant_p(sig)          \
          ? __const_sigaddset((set), (sig))  \
          : __gen_sigaddset((set), (sig)))
 
diff --git a/include/asm-x86/swiotlb.h b/include/asm-x86/swiotlb.h
index f5d9e74b1e4a..c706a7442633 100644
--- a/include/asm-x86/swiotlb.h
+++ b/include/asm-x86/swiotlb.h
@@ -45,12 +45,14 @@ extern int swiotlb_force;
 
 #ifdef CONFIG_SWIOTLB
 extern int swiotlb;
+extern void pci_swiotlb_init(void);
 #else
 #define swiotlb 0
+static inline void pci_swiotlb_init(void)
+{
+}
 #endif
 
-extern void pci_swiotlb_init(void);
-
 static inline void dma_mark_clean(void *addr, size_t size) {}
 
 #endif /* _ASM_SWIOTLB_H */
diff --git a/include/asm-x86/thread_info.h b/include/asm-x86/thread_info.h
index 895339d2bc0b..0a8f27d31d0d 100644
--- a/include/asm-x86/thread_info.h
+++ b/include/asm-x86/thread_info.h
@@ -75,9 +75,7 @@ struct thread_info {
 #define TIF_NEED_RESCHED        3       /* rescheduling necessary */
 #define TIF_SINGLESTEP          4       /* reenable singlestep on user return*/
 #define TIF_IRET                5       /* force IRET */
-#ifdef CONFIG_X86_32
 #define TIF_SYSCALL_EMU         6       /* syscall emulation active */
-#endif
 #define TIF_SYSCALL_AUDIT       7       /* syscall auditing active */
 #define TIF_SECCOMP             8       /* secure computing */
 #define TIF_MCE_NOTIFY          10      /* notify userspace of an MCE */
@@ -100,11 +98,7 @@ struct thread_info {
 #define _TIF_SINGLESTEP         (1 << TIF_SINGLESTEP)
 #define _TIF_NEED_RESCHED       (1 << TIF_NEED_RESCHED)
 #define _TIF_IRET               (1 << TIF_IRET)
-#ifdef CONFIG_X86_32
 #define _TIF_SYSCALL_EMU        (1 << TIF_SYSCALL_EMU)
-#else
-#define _TIF_SYSCALL_EMU        0
-#endif
 #define _TIF_SYSCALL_AUDIT      (1 << TIF_SYSCALL_AUDIT)
 #define _TIF_SECCOMP            (1 << TIF_SECCOMP)
 #define _TIF_MCE_NOTIFY         (1 << TIF_MCE_NOTIFY)
@@ -121,18 +115,27 @@ struct thread_info {
 #define _TIF_DS_AREA_MSR        (1 << TIF_DS_AREA_MSR)
 #define _TIF_BTS_TRACE_TS       (1 << TIF_BTS_TRACE_TS)
 
+/* work to do in syscall_trace_enter() */
+#define _TIF_WORK_SYSCALL_ENTRY \
+        (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_EMU | \
+         _TIF_SYSCALL_AUDIT | _TIF_SECCOMP | _TIF_SINGLESTEP)
+
+/* work to do in syscall_trace_leave() */
+#define _TIF_WORK_SYSCALL_EXIT  \
+        (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_SINGLESTEP)
+
 /* work to do on interrupt/exception return */
 #define _TIF_WORK_MASK                                                  \
         (0x0000FFFF &                                                   \
-         ~(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SINGLESTEP|       \
-         _TIF_SECCOMP|_TIF_SYSCALL_EMU))
+         ~(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|                       \
+           _TIF_SINGLESTEP|_TIF_SECCOMP|_TIF_SYSCALL_EMU))
 
 /* work to do on any return to user space */
 #define _TIF_ALLWORK_MASK (0x0000FFFF & ~_TIF_SECCOMP)
 
 /* Only used for 64 bit */
 #define _TIF_DO_NOTIFY_MASK                                             \
-        (_TIF_SIGPENDING|_TIF_SINGLESTEP|_TIF_MCE_NOTIFY|_TIF_HRTICK_RESCHED)
+        (_TIF_SIGPENDING|_TIF_MCE_NOTIFY|_TIF_HRTICK_RESCHED)
 
 /* flags to check in __switch_to() */
 #define _TIF_WORK_CTXSW                                                 \
diff --git a/include/asm-x86/traps.h b/include/asm-x86/traps.h
new file mode 100644
index 000000000000..a4b65a71bd66
--- /dev/null
+++ b/include/asm-x86/traps.h
@@ -0,0 +1,66 @@
+#ifndef _ASM_X86_TRAPS_H
+#define _ASM_X86_TRAPS_H
+
+/* Common in X86_32 and X86_64 */
+asmlinkage void divide_error(void);
+asmlinkage void debug(void);
+asmlinkage void nmi(void);
+asmlinkage void int3(void);
+asmlinkage void overflow(void);
+asmlinkage void bounds(void);
+asmlinkage void invalid_op(void);
+asmlinkage void device_not_available(void);
+asmlinkage void coprocessor_segment_overrun(void);
+asmlinkage void invalid_TSS(void);
+asmlinkage void segment_not_present(void);
+asmlinkage void stack_segment(void);
+asmlinkage void general_protection(void);
+asmlinkage void page_fault(void);
+asmlinkage void coprocessor_error(void);
+asmlinkage void simd_coprocessor_error(void);
+asmlinkage void alignment_check(void);
+asmlinkage void spurious_interrupt_bug(void);
+#ifdef CONFIG_X86_MCE
+asmlinkage void machine_check(void);
+#endif /* CONFIG_X86_MCE */
+
+void do_divide_error(struct pt_regs *, long);
+void do_overflow(struct pt_regs *, long);
+void do_bounds(struct pt_regs *, long);
+void do_coprocessor_segment_overrun(struct pt_regs *, long);
+void do_invalid_TSS(struct pt_regs *, long);
+void do_segment_not_present(struct pt_regs *, long);
+void do_stack_segment(struct pt_regs *, long);
+void do_alignment_check(struct pt_regs *, long);
+void do_invalid_op(struct pt_regs *, long);
+void do_general_protection(struct pt_regs *, long);
+void do_nmi(struct pt_regs *, long);
+
+extern int panic_on_unrecovered_nmi;
+extern int kstack_depth_to_print;
+
+#ifdef CONFIG_X86_32
+
+void do_iret_error(struct pt_regs *, long);
+void do_int3(struct pt_regs *, long);
+void do_debug(struct pt_regs *, long);
+void math_error(void __user *);
+void do_coprocessor_error(struct pt_regs *, long);
+void do_simd_coprocessor_error(struct pt_regs *, long);
+void do_spurious_interrupt_bug(struct pt_regs *, long);
+unsigned long patch_espfix_desc(unsigned long, unsigned long);
+asmlinkage void math_emulate(long);
+
+#else /* CONFIG_X86_32 */
+
+asmlinkage void double_fault(void);
+
+asmlinkage void do_int3(struct pt_regs *, long);
+asmlinkage void do_stack_segment(struct pt_regs *, long);
+asmlinkage void do_debug(struct pt_regs *, unsigned long);
+asmlinkage void do_coprocessor_error(struct pt_regs *);
+asmlinkage void do_simd_coprocessor_error(struct pt_regs *);
+asmlinkage void do_spurious_interrupt_bug(struct pt_regs *);
+
+#endif /* CONFIG_X86_32 */
+#endif /* _ASM_X86_TRAPS_H */
diff --git a/include/asm-x86/uv/bios.h b/include/asm-x86/uv/bios.h
new file mode 100644
index 000000000000..aa73362ff5df
--- /dev/null
+++ b/include/asm-x86/uv/bios.h
@@ -0,0 +1,68 @@
+#ifndef _ASM_X86_BIOS_H
+#define _ASM_X86_BIOS_H
+
+/*
+ * BIOS layer definitions.
+ *
+ *  Copyright (c) 2008 Silicon Graphics, Inc.  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.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#include <linux/rtc.h>
+
+#define BIOS_FREQ_BASE                  0x01000001
+
+enum {
+        BIOS_FREQ_BASE_PLATFORM = 0,
+        BIOS_FREQ_BASE_INTERVAL_TIMER = 1,
+        BIOS_FREQ_BASE_REALTIME_CLOCK = 2
+};
+
+# define BIOS_CALL(result, a0, a1, a2, a3, a4, a5, a6, a7)              \
+        do {                                                            \
+                /* XXX - the real call goes here */                     \
+                result.status = BIOS_STATUS_UNIMPLEMENTED;              \
+                isrv.v0 = 0;                                            \
+                isrv.v1 = 0;                                            \
+        } while (0)
+
+enum {
+        BIOS_STATUS_SUCCESS             =  0,
+        BIOS_STATUS_UNIMPLEMENTED       = -1,
+        BIOS_STATUS_EINVAL              = -2,
+        BIOS_STATUS_ERROR               = -3
+};
+
+struct uv_bios_retval {
+        /*
+         * A zero status value indicates call completed without error.
+         * A negative status value indicates reason of call failure.
+         * A positive status value indicates success but an
+         * informational value should be printed (e.g., "reboot for
+         * change to take effect").
+         */
+        s64 status;
+        u64 v0;
+        u64 v1;
+        u64 v2;
+};
+
+extern long
+x86_bios_freq_base(unsigned long which, unsigned long *ticks_per_second,
+                   unsigned long *drift_info);
+extern const char *x86_bios_strerror(long status);
+
+#endif /* _ASM_X86_BIOS_H */