diff options
| author | Oleksandr Tymoshenko <gonzo@FreeBSD.org> | 2013-01-07 20:36:51 +0000 |
|---|---|---|
| committer | Oleksandr Tymoshenko <gonzo@FreeBSD.org> | 2013-01-07 20:36:51 +0000 |
| commit | c5d04c4c3b236a3f8adc1faec213221ad9f42a15 (patch) | |
| tree | 20c50b002128b53e1c48ae125128536523eb699f /sys/arm/include/atomic.h | |
| parent | f6eef2c2d632732cc202b13d1e42482324858685 (diff) | |
Notes
Diffstat (limited to 'sys/arm/include/atomic.h')
| -rw-r--r-- | sys/arm/include/atomic.h | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/sys/arm/include/atomic.h b/sys/arm/include/atomic.h index 1a961764555b..4862453d4ff9 100644 --- a/sys/arm/include/atomic.h +++ b/sys/arm/include/atomic.h @@ -47,9 +47,25 @@ #include <machine/cpuconf.h> #endif -#define mb() -#define wmb() -#define rmb() +#if defined (__ARM_ARCH_7__) || defined (__ARM_ARCH_7A__) +#define isb() __asm __volatile("isb" : : : "memory") +#define dsb() __asm __volatile("dsb" : : : "memory") +#define dmb() __asm __volatile("dmb" : : : "memory") +#elif defined (__ARM_ARCH_6__) || defined (__ARM_ARCH_6J__) || \ + defined (__ARM_ARCH_6K__) || defined (__ARM_ARCH_6Z__) || \ + defined (__ARM_ARCH_6ZK__) +#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() __asm __volatile("mcr p15, 0, %0, c7, c10, 5" : : "r" (0) : "memory") +#else +#define isb() +#define dsb() +#define dmb() +#endif + +#define mb() dmb() +#define wmb() dmb() +#define rmb() dmb() #ifndef I32_bit #define I32_bit (1 << 7) /* IRQ disable */ |