| #ifndef _ASM_BARRIER_H_ |
| #define _ASM_BARRIER_H_ |
| /* |
| * asm-generic/barrier.h |
| * |
| * Copyright (C) 2016, Red Hat Inc, Alexander Gordeev <agordeev@redhat.com> |
| * |
| * This work is licensed under the terms of the GNU LGPL, version 2. |
| */ |
| |
| #ifndef mb |
| #define mb() asm volatile("":::"memory") |
| #endif |
| #ifndef rmb |
| #define rmb() asm volatile("":::"memory") |
| #endif |
| #ifndef wmb |
| #define wmb() asm volatile("":::"memory") |
| #endif |
| |
| #ifndef smp_mb |
| #define smp_mb() mb() |
| #endif |
| #ifndef smp_rmb |
| #define smp_rmb() rmb() |
| #endif |
| #ifndef smp_wmb |
| #define smp_wmb() wmb() |
| #endif |
| |
| #ifndef cpu_relax |
| #define cpu_relax() asm volatile ("":::"memory") |
| #endif |
| |
| #endif /* _ASM_BARRIER_H_ */ |