| Message ID | 5174C5D9.3060109@asianux.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Mon, Apr 22, 2013 at 06:08:41AM +0100, Chen Gang wrote: > > drivers use cmpxchg64, cmpxchg64_local ... to perform 64-bit operation, > so they can cross 32-bit and 64-bit platforms (it is a standard way). > > > Signed-off-by: Chen Gang <gang.chen@asianux.com> Applied, thanks.
On 2013?04?23? 18:48, Catalin Marinas wrote: > On Mon, Apr 22, 2013 at 06:08:41AM +0100, Chen Gang wrote: >> > >> > drivers use cmpxchg64, cmpxchg64_local ... to perform 64-bit operation, >> > so they can cross 32-bit and 64-bit platforms (it is a standard way). >> > >> > >> > Signed-off-by: Chen Gang <gang.chen@asianux.com> > Applied, thanks. Thanks too. I should continue to find and make new patches for arm64.
diff --git a/arch/arm64/include/asm/cmpxchg.h b/arch/arm64/include/asm/cmpxchg.h index 968b5cb..8a8ce0e 100644 --- a/arch/arm64/include/asm/cmpxchg.h +++ b/arch/arm64/include/asm/cmpxchg.h @@ -170,4 +170,7 @@ static inline unsigned long __cmpxchg_mb(volatile void *ptr, unsigned long old, (unsigned long)(n), \ sizeof(*(ptr)))) +#define cmpxchg64(ptr,o,n) cmpxchg((ptr),(o),(n)) +#define cmpxchg64_local(ptr,o,n) cmpxchg_local((ptr),(o),(n)) + #endif /* __ASM_CMPXCHG_H */
drivers use cmpxchg64, cmpxchg64_local ... to perform 64-bit operation, so they can cross 32-bit and 64-bit platforms (it is a standard way). Signed-off-by: Chen Gang <gang.chen@asianux.com> --- arch/arm64/include/asm/cmpxchg.h | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-)