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| author | ian <ian@FreeBSD.org> | 2014-05-11 00:43:06 +0000 |
|---|---|---|
| committer | ian <ian@FreeBSD.org> | 2014-05-11 00:43:06 +0000 |
| commit | bbf551afa0d4b339aa8968ee49aaa1bc2a520403 (patch) | |
| tree | 45bcf42c38e17b54d71507f0204d8c6645845665 /sys/arm/include/atomic.h | |
| parent | 1f446d8434a38afc2c90eca121d1e8b6b9690f9b (diff) | |
| download | FreeBSD-src-bbf551afa0d4b339aa8968ee49aaa1bc2a520403.zip FreeBSD-src-bbf551afa0d4b339aa8968ee49aaa1bc2a520403.tar.gz | |
Make the hardware memory and instruction barrier functions work on armv4
and armv5 as well.
Diffstat (limited to 'sys/arm/include/atomic.h')
| -rw-r--r-- | sys/arm/include/atomic.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sys/arm/include/atomic.h b/sys/arm/include/atomic.h index d168498..02be1bd 100644 --- a/sys/arm/include/atomic.h +++ b/sys/arm/include/atomic.h @@ -58,9 +58,9 @@ #define dsb() __asm __volatile("mcr p15, 0, %0, c7, c10, 4" : : "r" (0) : "memory") #define dmb() __asm __volatile("mcr p15, 0, %0, c7, c10, 5" : : "r" (0) : "memory") #else -#define isb() -#define dsb() -#define dmb() +#define isb() __asm __volatile("mcr p15, 0, %0, c7, c5, 4" : : "r" (0) : "memory") +#define dsb() __asm __volatile("mcr p15, 0, %0, c7, c10, 4" : : "r" (0) : "memory") +#define dmb() dsb() #endif #define mb() dmb() |
