| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _TOOLS_LINUX_ASM_AARCH64_BARRIER_H |
| #define _TOOLS_LINUX_ASM_AARCH64_BARRIER_H |
| |
| /* |
| * From tools/perf/perf-sys.h, last modified in: |
| * f428ebd184c82a7914b2aa7e9f868918aaf7ea78 perf tools: Fix AAAAARGH64 memory barriers |
| * |
| * XXX: arch/arm64/include/asm/barrier.h in the kernel sources use dsb, is this |
| * a case like for arm32 where we do things differently in userspace? |
| */ |
| |
| #define mb() asm volatile("dmb ish" ::: "memory") |
| #define wmb() asm volatile("dmb ishst" ::: "memory") |
| #define rmb() asm volatile("dmb ishld" ::: "memory") |
| |
| #endif /* _TOOLS_LINUX_ASM_AARCH64_BARRIER_H */ |
