diff options
Diffstat (limited to 'tools/arch/s390/include/asm/barrier.h')
| -rw-r--r-- | tools/arch/s390/include/asm/barrier.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/tools/arch/s390/include/asm/barrier.h b/tools/arch/s390/include/asm/barrier.h index f85141266b92..de362fa664d4 100644 --- a/tools/arch/s390/include/asm/barrier.h +++ b/tools/arch/s390/include/asm/barrier.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copied from the kernel sources: * @@ -27,4 +28,17 @@ #define rmb() mb() #define wmb() mb() +#define smp_store_release(p, v) \ +do { \ + barrier(); \ + WRITE_ONCE(*p, v); \ +} while (0) + +#define smp_load_acquire(p) \ +({ \ + typeof(*p) ___p1 = READ_ONCE(*p); \ + barrier(); \ + ___p1; \ +}) + #endif /* __TOOLS_LIB_ASM_BARRIER_H */ |