[deliverable/linux.git] / arch / xtensa / include / asm / barrier.h

/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 2001 - 2012 Tensilica Inc.
 */

#ifndef _XTENSA_SYSTEM_H
#define _XTENSA_SYSTEM_H

#define mb()  ({ __asm__ __volatile__("memw" : : : "memory"); })
#define rmb() barrier()
#define wmb() mb()

#include <asm-generic/barrier.h>

#endif /* _XTENSA_SYSTEM_H */
Commit	Line	Data
f9aa7e18 DH	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	*
599bf77a	6	* Copyright (C) 2001 - 2012 Tensilica Inc.
f9aa7e18 DH	7	*/
	8
	9	#ifndef _XTENSA_SYSTEM_H
	10	#define _XTENSA_SYSTEM_H
	11
599bf77a MF	12	#define mb() ({ __asm__ __volatile__("memw" : : : "memory"); })
599bf77a MF	13	#define rmb() barrier()
f9aa7e18 DH	14	#define wmb() mb()
f9aa7e18 DH	15
93ea02bb	16	#include <asm-generic/barrier.h>
f9aa7e18 DH	17
f9aa7e18 DH	18	#endif /* _XTENSA_SYSTEM_H */