diff options
Diffstat (limited to 'include/asm-ppc64/processor.h')
| -rw-r--r-- | include/asm-ppc64/processor.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/asm-ppc64/processor.h b/include/asm-ppc64/processor.h index eb33d33cfd6..cae65b30adb 100644 --- a/include/asm-ppc64/processor.h +++ b/include/asm-ppc64/processor.h @@ -642,11 +642,17 @@ static inline unsigned long __pack_fe01(unsigned int fpmode) static inline void prefetch(const void *x) { + if (unlikely(!x)) + return; + __asm__ __volatile__ ("dcbt 0,%0" : : "r" (x)); } static inline void prefetchw(const void *x) { + if (unlikely(!x)) + return; + __asm__ __volatile__ ("dcbtst 0,%0" : : "r" (x)); } |