| David Howells | b1a154d | 2012-03-28 18:30:02 +0100 | [diff] [blame] | 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 */ |
