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- /*
- * Copyright (C) 2004-2006 Atmel Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
- #ifndef __ASM_AVR32_BARRIER_H
- #define __ASM_AVR32_BARRIER_H
- #define nop() asm volatile("nop")
- #define mb() asm volatile("" : : : "memory")
- #define rmb() mb()
- #define wmb() asm volatile("sync 0" : : : "memory")
- #define read_barrier_depends() do { } while(0)
- #define set_mb(var, value) do { var = value; mb(); } while(0)
- #ifdef CONFIG_SMP
- # error "The AVR32 port does not support SMP"
- #else
- # define smp_mb() barrier()
- # define smp_rmb() barrier()
- # define smp_wmb() barrier()
- # define smp_read_barrier_depends() do { } while(0)
- #endif
- #endif /* __ASM_AVR32_BARRIER_H */
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