9 files changed, 22 insertions, 38 deletions

diff --git a/include/asm-x86_64/alternative.h b/include/asm-x86_64/alternative.h
index aa67bfd1b3ce..a584826cc570 100644
--- a/include/asm-x86_64/alternative.h
+++ b/include/asm-x86_64/alternative.h
@@ -4,6 +4,7 @@
 #ifdef __KERNEL__
 
 #include <linux/types.h>
+#include <asm/cpufeature.h>
 
 struct alt_instr {
         u8 *instr;              /* original instruction */
@@ -102,9 +103,6 @@ static inline void alternatives_smp_switch(int smp) {}
 /*
  * Alternative inline assembly for SMP.
  *
- * alternative_smp() takes two versions (SMP first, UP second) and is
- * for more complex stuff such as spinlocks.
- *
  * The LOCK_PREFIX macro defined here replaces the LOCK and
  * LOCK_PREFIX macros used everywhere in the source tree.
  *
@@ -124,21 +122,6 @@ static inline void alternatives_smp_switch(int smp) {}
  */
 
 #ifdef CONFIG_SMP
-#define alternative_smp(smpinstr, upinstr, args...)                     \
-        asm volatile ("661:\n\t" smpinstr "\n662:\n"                    \
-                      ".section .smp_altinstructions,\"a\"\n"           \
-                      "  .align 8\n"                                    \
-                      "  .quad 661b\n"            /* label */           \
-                      "  .quad 663f\n"            /* new instruction */ \
-                      "  .byte 0x66\n"            /* X86_FEATURE_UP */  \
-                      "  .byte 662b-661b\n"       /* sourcelen */       \
-                      "  .byte 664f-663f\n"       /* replacementlen */  \
-                      ".previous\n"                                     \
-                      ".section .smp_altinstr_replacement,\"awx\"\n"    \
-                      "663:\n\t" upinstr "\n"     /* replacement */     \
-                      "664:\n\t.fill 662b-661b,1,0x42\n" /* space for original */ \
-                      ".previous" : args)
-
 #define LOCK_PREFIX \
                 ".section .smp_locks,\"a\"\n"   \
                 "  .align 8\n"                  \
@@ -147,8 +130,6 @@ static inline void alternatives_smp_switch(int smp) {}
                 "661:\n\tlock; "
 
 #else /* ! CONFIG_SMP */
-#define alternative_smp(smpinstr, upinstr, args...) \
-        asm volatile (upinstr : args)
 #define LOCK_PREFIX ""
 #endif
 
diff --git a/include/asm-x86_64/calgary.h b/include/asm-x86_64/calgary.h
index fbfb50136edb..4e3919524240 100644
--- a/include/asm-x86_64/calgary.h
+++ b/include/asm-x86_64/calgary.h
@@ -60,9 +60,4 @@ static inline int calgary_iommu_init(void) { return 1; }
 static inline void detect_calgary(void) { return; }
 #endif
 
-static inline unsigned int bus_to_phb(unsigned char busno)
-{
-        return ((busno % 15 == 0) ? 0 : busno / 2 + 1);
-}
-
 #endif /* _ASM_X86_64_CALGARY_H */
diff --git a/include/asm-x86_64/kprobes.h b/include/asm-x86_64/kprobes.h
index d36febd9bb18..cf5317898fb0 100644
--- a/include/asm-x86_64/kprobes.h
+++ b/include/asm-x86_64/kprobes.h
@@ -47,6 +47,7 @@ typedef u8 kprobe_opcode_t;
 
 void kretprobe_trampoline(void);
 extern void arch_remove_kprobe(struct kprobe *p);
+#define flush_insn_slot(p)      do { } while (0)
 
 /* Architecture specific copy of original instruction*/
 struct arch_specific_insn {
diff --git a/include/asm-x86_64/page.h b/include/asm-x86_64/page.h
index f7bf875aae40..10f346165cab 100644
--- a/include/asm-x86_64/page.h
+++ b/include/asm-x86_64/page.h
@@ -19,7 +19,7 @@
 #define EXCEPTION_STACK_ORDER 0
 #define EXCEPTION_STKSZ (PAGE_SIZE << EXCEPTION_STACK_ORDER)
 
-#define DEBUG_STACK_ORDER EXCEPTION_STACK_ORDER
+#define DEBUG_STACK_ORDER (EXCEPTION_STACK_ORDER + 1)
 #define DEBUG_STKSZ (PAGE_SIZE << DEBUG_STACK_ORDER)
 
 #define IRQSTACK_ORDER 2
diff --git a/include/asm-x86_64/processor.h b/include/asm-x86_64/processor.h
index 3b3c1217fe61..de9c3147ee4c 100644
--- a/include/asm-x86_64/processor.h
+++ b/include/asm-x86_64/processor.h
@@ -232,8 +232,14 @@ struct tss_struct {
         unsigned long io_bitmap[IO_BITMAP_LONGS + 1];
 } __attribute__((packed)) ____cacheline_aligned;
 
+
 extern struct cpuinfo_x86 boot_cpu_data;
 DECLARE_PER_CPU(struct tss_struct,init_tss);
+/* Save the original ist values for checking stack pointers during debugging */
+struct orig_ist {
+        unsigned long ist[7];
+};
+DECLARE_PER_CPU(struct orig_ist, orig_ist);
 
 #ifdef CONFIG_X86_VSMP
 #define ARCH_MIN_TASKALIGN      (1 << INTERNODE_CACHE_SHIFT)
diff --git a/include/asm-x86_64/spinlock.h b/include/asm-x86_64/spinlock.h
index 8d3421996f94..248a79f0eaff 100644
--- a/include/asm-x86_64/spinlock.h
+++ b/include/asm-x86_64/spinlock.h
@@ -21,7 +21,7 @@
 
 #define __raw_spin_lock_string \
         "\n1:\t" \
-        "lock ; decl %0\n\t" \
+        LOCK_PREFIX " ; decl %0\n\t" \
         "js 2f\n" \
         LOCK_SECTION_START("") \
         "2:\t" \
@@ -40,10 +40,7 @@
 
 static inline void __raw_spin_lock(raw_spinlock_t *lock)
 {
-        alternative_smp(
-                __raw_spin_lock_string,
-                __raw_spin_lock_string_up,
-                "=m" (lock->slock) : : "memory");
+        asm volatile(__raw_spin_lock_string : "=m" (lock->slock) : : "memory");
 }
 
 #define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock)
@@ -125,12 +122,12 @@ static inline int __raw_write_trylock(raw_rwlock_t *lock)
 
 static inline void __raw_read_unlock(raw_rwlock_t *rw)
 {
-        asm volatile("lock ; incl %0" :"=m" (rw->lock) : : "memory");
+        asm volatile(LOCK_PREFIX " ; incl %0" :"=m" (rw->lock) : : "memory");
 }
 
 static inline void __raw_write_unlock(raw_rwlock_t *rw)
 {
-        asm volatile("lock ; addl $" RW_LOCK_BIAS_STR ",%0"
+        asm volatile(LOCK_PREFIX " ; addl $" RW_LOCK_BIAS_STR ",%0"
                                 : "=m" (rw->lock) : : "memory");
 }
 
diff --git a/include/asm-x86_64/swiotlb.h b/include/asm-x86_64/swiotlb.h
index 5f9a01805821..ba94ab3d2673 100644
--- a/include/asm-x86_64/swiotlb.h
+++ b/include/asm-x86_64/swiotlb.h
@@ -42,6 +42,8 @@ extern void swiotlb_free_coherent (struct device *hwdev, size_t size,
 extern int swiotlb_dma_supported(struct device *hwdev, u64 mask);
 extern void swiotlb_init(void);
 
+extern int swiotlb_force;
+
 #ifdef CONFIG_SWIOTLB
 extern int swiotlb;
 #else
diff --git a/include/asm-x86_64/unistd.h b/include/asm-x86_64/unistd.h
index 94387c915e53..2d89d309a2a8 100644
--- a/include/asm-x86_64/unistd.h
+++ b/include/asm-x86_64/unistd.h
@@ -620,8 +620,6 @@ __SYSCALL(__NR_vmsplice, sys_vmsplice)
 #define __NR_move_pages         279
 __SYSCALL(__NR_move_pages, sys_move_pages)
 
-#ifdef __KERNEL__
-
 #define __NR_syscall_max __NR_move_pages
 
 #ifndef __NO_STUBS
@@ -746,6 +744,8 @@ __syscall_return(type,__res); \
 
 #else /* __KERNEL_SYSCALLS__ */
 
+#ifdef __KERNEL__
+
 #include <linux/syscalls.h>
 #include <asm/ptrace.h>
 
@@ -838,9 +838,9 @@ asmlinkage long sys_rt_sigaction(int sig,
                                 struct sigaction __user *oact,
                                 size_t sigsetsize);
 
-#endif  /* __ASSEMBLY__ */
+#endif
 
-#endif /* __NO_STUBS */
+#endif
 
 /*
  * "Conditional" syscalls
@@ -850,5 +850,6 @@ asmlinkage long sys_rt_sigaction(int sig,
  */
 #define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
 
-#endif /* __KERNEL__ */
+#endif
+
 #endif
diff --git a/include/asm-x86_64/unwind.h b/include/asm-x86_64/unwind.h
index f3e7124effe3..1f6e9bfb569e 100644
--- a/include/asm-x86_64/unwind.h
+++ b/include/asm-x86_64/unwind.h
@@ -95,6 +95,7 @@ static inline int arch_unw_user_mode(const struct unwind_frame_info *info)
 #else
 
 #define UNW_PC(frame) ((void)(frame), 0)
+#define UNW_SP(frame) ((void)(frame), 0)
 
 static inline int arch_unw_user_mode(const void *info)
 {