barrier.h 707 B

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  1. #ifndef __ASM_CRIS_BARRIER_H
  2. #define __ASM_CRIS_BARRIER_H
  3. #define nop() __asm__ __volatile__ ("nop");
  4. #define barrier() __asm__ __volatile__("": : :"memory")
  5. #define mb() barrier()
  6. #define rmb() mb()
  7. #define wmb() mb()
  8. #define read_barrier_depends() do { } while(0)
  9. #define set_mb(var, value) do { var = value; mb(); } while (0)
  10. #ifdef CONFIG_SMP
  11. #define smp_mb() mb()
  12. #define smp_rmb() rmb()
  13. #define smp_wmb() wmb()
  14. #define smp_read_barrier_depends() read_barrier_depends()
  15. #else
  16. #define smp_mb() barrier()
  17. #define smp_rmb() barrier()
  18. #define smp_wmb() barrier()
  19. #define smp_read_barrier_depends() do { } while(0)
  20. #endif
  21. #endif /* __ASM_CRIS_BARRIER_H */