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- #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 read_barrier_depends() \
- __asm__ __volatile__("mb": : :"memory")
- #ifdef CONFIG_SMP
- #define smp_mb() mb()
- #define smp_rmb() rmb()
- #define smp_wmb() wmb()
- #define smp_read_barrier_depends() read_barrier_depends()
- #else
- #define smp_mb() barrier()
- #define smp_rmb() barrier()
- #define smp_wmb() barrier()
- #define smp_read_barrier_depends() barrier()
- #endif
- #define set_mb(var, value) \
- do { var = value; mb(); } while (0)
- #define set_wmb(var, value) \
- do { var = value; wmb(); } while (0)
- #endif /* __BARRIER_H */
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