1 #ifndef _TOOLS_LINUX_ASM_AARCH64_BARRIER_H 2 #define _TOOLS_LINUX_ASM_AARCH64_BARRIER_H 3 4 /* 5 * From tools/perf/perf-sys.h, last modified in: 6 * f428ebd184c82a7914b2aa7e9f868918aaf7ea78 perf tools: Fix AAAAARGH64 memory barriers 7 * 8 * XXX: arch/arm64/include/asm/barrier.h in the kernel sources use dsb, is this 9 * a case like for arm32 where we do things differently in userspace? 10 */ 11 12 #define mb() asm volatile("dmb ish" ::: "memory") 13 #define wmb() asm volatile("dmb ishst" ::: "memory") 14 #define rmb() asm volatile("dmb ishld" ::: "memory") 15 16 #endif /* _TOOLS_LINUX_ASM_AARCH64_BARRIER_H */ 17