diff options
Diffstat (limited to 'tools/arch/sparc/include/asm/barrier_64.h')
| -rw-r--r-- | tools/arch/sparc/include/asm/barrier_64.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/tools/arch/sparc/include/asm/barrier_64.h b/tools/arch/sparc/include/asm/barrier_64.h index 9a7d7322c3f7..cfb0fdc8ccf0 100644 --- a/tools/arch/sparc/include/asm/barrier_64.h +++ b/tools/arch/sparc/include/asm/barrier_64.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __TOOLS_LINUX_SPARC64_BARRIER_H #define __TOOLS_LINUX_SPARC64_BARRIER_H @@ -39,4 +40,17 @@ do { __asm__ __volatile__("ba,pt %%xcc, 1f\n\t" \ #define rmb() __asm__ __volatile__("":::"memory") #define wmb() __asm__ __volatile__("":::"memory") +#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_LINUX_SPARC64_BARRIER_H) */ |