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- #ifndef _H8300_BARRIER_H
- #define _H8300_BARRIER_H
- #define nop() asm volatile ("nop"::)
- /*
- * Force strict CPU ordering.
- * Not really required on H8...
- */
- #define mb() asm volatile ("" : : :"memory")
- #define rmb() asm volatile ("" : : :"memory")
- #define wmb() asm volatile ("" : : :"memory")
- #define set_mb(var, value) do { xchg(&var, value); } while (0)
- #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() do { } while(0)
- #endif
- #endif /* _H8300_BARRIER_H */
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