diff options
Diffstat (limited to 'include/asm-x86')
| -rw-r--r-- | include/asm-x86/system_32.h | 4 | ||||
| -rw-r--r-- | include/asm-x86/system_64.h | 5 |
2 files changed, 9 insertions, 0 deletions
diff --git a/include/asm-x86/system_32.h b/include/asm-x86/system_32.h index 1d6fb3afa533..db6283eb5e46 100644 --- a/include/asm-x86/system_32.h +++ b/include/asm-x86/system_32.h @@ -161,6 +161,10 @@ static inline void native_wbinvd(void) asm volatile("wbinvd": : :"memory"); } +static inline void clflush(volatile void *__p) +{ + asm volatile("clflush %0" : "+m" (*(char __force *)__p)); +} #ifdef CONFIG_PARAVIRT #include <asm/paravirt.h> diff --git a/include/asm-x86/system_64.h b/include/asm-x86/system_64.h index fb4bcf99e665..ec4c29bcfcb0 100644 --- a/include/asm-x86/system_64.h +++ b/include/asm-x86/system_64.h @@ -137,6 +137,11 @@ 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 |