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- #ifndef _M68K_BARRIER_H
- #define _M68K_BARRIER_H
- /*
- * Force strict CPU ordering.
- * Not really required on m68k...
- */
- #define nop() do { asm volatile ("nop"); barrier(); } while (0)
- #define mb() barrier()
- #define rmb() barrier()
- #define wmb() barrier()
- #define read_barrier_depends() ((void)0)
- #define set_mb(var, value) ({ (var) = (value); wmb(); })
- #define smp_mb() barrier()
- #define smp_rmb() barrier()
- #define smp_wmb() barrier()
- #define smp_read_barrier_depends() ((void)0)
- #endif /* _M68K_BARRIER_H */
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