1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License.  See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 2001 - 2012 Tensilica Inc.
7 */
8
9#ifndef _XTENSA_SYSTEM_H
10#define _XTENSA_SYSTEM_H
11
12#define mb()  ({ __asm__ __volatile__("memw" : : : "memory"); })
13#define rmb() barrier()
14#define wmb() mb()
15
16#define smp_mb__before_atomic()		barrier()
17#define smp_mb__after_atomic()		barrier()
18
19#include <asm-generic/barrier.h>
20
21#endif /* _XTENSA_SYSTEM_H */
22