diff options
Diffstat (limited to 'include/asm-x86/system_64.h')
| -rw-r--r-- | include/asm-x86/system_64.h | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/include/asm-x86/system_64.h b/include/asm-x86/system_64.h index 5022aecc333..4cb23848d46 100644 --- a/include/asm-x86/system_64.h +++ b/include/asm-x86/system_64.h @@ -7,9 +7,6 @@ #ifdef __KERNEL__ -#define __STR(x) #x -#define STR(x) __STR(x) - #define __SAVE(reg,offset) "movq %%" #reg ",(14-" #offset ")*8(%%rsp)\n\t" #define __RESTORE(reg,offset) "movq (14-" #offset ")*8(%%rsp),%%" #reg "\n\t" @@ -85,7 +82,7 @@ static inline void write_cr0(unsigned long val) static inline unsigned long read_cr2(void) { unsigned long cr2; - asm("movq %%cr2,%0" : "=r" (cr2)); + asm volatile("movq %%cr2,%0" : "=r" (cr2)); return cr2; } @@ -97,7 +94,7 @@ static inline void write_cr2(unsigned long val) static inline unsigned long read_cr3(void) { unsigned long cr3; - asm("movq %%cr3,%0" : "=r" (cr3)); + asm volatile("movq %%cr3,%0" : "=r" (cr3)); return cr3; } @@ -109,7 +106,7 @@ static inline void write_cr3(unsigned long val) static inline unsigned long read_cr4(void) { unsigned long cr4; - asm("movq %%cr4,%0" : "=r" (cr4)); + asm volatile("movq %%cr4,%0" : "=r" (cr4)); return cr4; } @@ -121,7 +118,7 @@ static inline void write_cr4(unsigned long val) static inline unsigned long read_cr8(void) { unsigned long cr8; - asm("movq %%cr8,%0" : "=r" (cr8)); + asm volatile("movq %%cr8,%0" : "=r" (cr8)); return cr8; } @@ -137,6 +134,11 @@ static inline void write_cr8(unsigned long val) #endif /* __KERNEL__ */ +static inline void clflush(volatile void *__p) +{ + asm volatile("clflush %0" : "+m" (*(char __force *)__p)); +} + #define nop() __asm__ __volatile__ ("nop") #ifdef CONFIG_SMP |