| /* SPDX-License-Identifier: GPL-2.0 */ | |
| #ifndef __BARRIER_H | |
| #define __BARRIER_H | |
| #define mb() __asm__ __volatile__("mb": : :"memory") | |
| #define rmb() __asm__ __volatile__("mb": : :"memory") | |
| #define wmb() __asm__ __volatile__("wmb": : :"memory") | |
| #define __smp_load_acquire(p) \ | |
| ({ \ | |
| compiletime_assert_atomic_type(*p); \ | |
| __READ_ONCE(*p); \ | |
| }) | |
| #ifdef CONFIG_SMP | |
| #define __ASM_SMP_MB "\tmb\n" | |
| #else | |
| #define __ASM_SMP_MB | |
| #endif | |
| #include <asm-generic/barrier.h> | |
| #endif /* __BARRIER_H */ |