2012-03-28 17:30:01 +00:00
|
|
|
/*
|
|
|
|
|
* 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
|
|
|
|
|
|
2012-04-03 23:14:04 +00:00
|
|
|
#define nop() asm volatile("nop")
|
|
|
|
|
|
2012-03-28 17:30:01 +00:00
|
|
|
#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 */
|
