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barrier.h
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1 #ifndef __ASM_CRIS_BARRIER_H
2 #define __ASM_CRIS_BARRIER_H
3 
4 #define nop() __asm__ __volatile__ ("nop");
5 
6 #define barrier() __asm__ __volatile__("": : :"memory")
7 #define mb() barrier()
8 #define rmb() mb()
9 #define wmb() mb()
10 #define read_barrier_depends() do { } while(0)
11 #define set_mb(var, value) do { var = value; mb(); } while (0)
12 
13 #ifdef CONFIG_SMP
14 #define smp_mb() mb()
15 #define smp_rmb() rmb()
16 #define smp_wmb() wmb()
17 #define smp_read_barrier_depends() read_barrier_depends()
18 #else
19 #define smp_mb() barrier()
20 #define smp_rmb() barrier()
21 #define smp_wmb() barrier()
22 #define smp_read_barrier_depends() do { } while(0)
23 #endif
24 
25 #endif /* __ASM_CRIS_BARRIER_H */