Merge branch 'linus' into stackprotector

[~andy/linux] / include / asm-x86 / system.h

diff --git a/include/asm-x86/system.h b/include/asm-x86/system.h
index 172f54185093e9d02ae8101f47f4d1d26092a5f7..d79fa4a9ee64c916ef70315dade3b6064b045f80 100644 (file)
--- a/include/asm-x86/system.h
+++ b/include/asm-x86/system.h
@@ -1,5 +1,5 @@
-#ifndef _ASM_X86_SYSTEM_H_
-#define _ASM_X86_SYSTEM_H_
+#ifndef ASM_X86__SYSTEM_H
+#define ASM_X86__SYSTEM_H
 
 #include <asm/asm.h>
 #include <asm/segment.h>
@@ -64,7 +64,10 @@ do {                                                                 \
                                                                        \
                       /* regparm parameters for __switch_to(): */      \
                       [prev]     "a" (prev),                           \
-                      [next]     "d" (next));                          \
+                      [next]     "d" (next)                            \
+                                                                       \
+                    : /* reloaded segment registers */                 \
+                       "memory");                                      \
 } while (0)
 
 /*
@@ -140,7 +143,7 @@ __asm__ __volatile__ ("movw %%dx,%1\n\t" \
 #define set_base(ldt, base) _set_base(((char *)&(ldt)) , (base))
 #define set_limit(ldt, limit) _set_limit(((char *)&(ldt)) , ((limit)-1))
 
-extern void load_gs_index(unsigned);
+extern void native_load_gs_index(unsigned);
 
 /*
  * Load a segment. Fall back on loading the zero
@@ -157,14 +160,14 @@ extern void load_gs_index(unsigned);
                     "jmp 2b\n"                 \
                     ".previous\n"              \
                     _ASM_EXTABLE(1b,3b)        \
-                    : :"r" (value), "r" (0))
+                    : :"r" (value), "r" (0) : "memory")
 
 
 /*
  * Save a segment register away
  */
 #define savesegment(seg, value)                                \
-       asm volatile("mov %%" #seg ",%0":"=rm" (value))
+       asm("mov %%" #seg ",%0":"=r" (value) : : "memory")
 
 static inline unsigned long get_limit(unsigned long segment)
 {
@@ -286,6 +289,7 @@ static inline void native_wbinvd(void)
 #ifdef CONFIG_X86_64
 #define read_cr8()     (native_read_cr8())
 #define write_cr8(x)   (native_write_cr8(x))
+#define load_gs_index   native_load_gs_index
 #endif
 
 /* Clear the 'TS' bit */
@@ -293,7 +297,7 @@ static inline void native_wbinvd(void)
 
 #endif/* CONFIG_PARAVIRT */
 
-#define stts() write_cr0(8 | read_cr0())
+#define stts() write_cr0(read_cr0() | X86_CR0_TS)
 
 #endif /* __KERNEL__ */
 
@@ -307,7 +311,6 @@ static inline void clflush(volatile void *__p)
 void disable_hlt(void);
 void enable_hlt(void);
 
-extern int es7000_plat;
 void cpu_idle_wait(void);
 
 extern unsigned long arch_align_stack(unsigned long sp);
@@ -423,4 +426,4 @@ static inline void rdtsc_barrier(void)
        alternative(ASM_NOP3, "lfence", X86_FEATURE_LFENCE_RDTSC);
 }
 
-#endif
+#endif /* ASM_X86__SYSTEM_H */