/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
#if ECB_NO_THREADS || ECB_NO_SMP
- #define ECB_MEMORY_FENCE do { } while (0)
- #define ECB_MEMORY_FENCE_ACQUIRE do { } while (0)
- #define ECB_MEMORY_FENCE_RELEASE do { } while (0)
+ #define ECB_MEMORY_FENCE do { } while (0)
#endif
#ifndef ECB_MEMORY_FENCE
#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
#elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \
- || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) \
- || defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \
+ || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__)
+ #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,4" : : "r" (0) : "memory")
+ #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \
|| defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ )
- #define ECB_MEMORY_FENCE \
- do { \
- int null = 0; \
- __asm__ __volatile__ ("mcr p15,0,%0,c6,c10,5", : "=&r" (null) : : "memory"); \
- while (0)
+ #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dsb" : : : "memory")
#endif
#endif
#endif