1 files changed, 5 insertions, 0 deletions

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