acrn-kernel/tools/arch/xtensa/include/asm/barrier.h

19 lines
502 B
C

/*
* Copied from the kernel sources to tools/:
*
* 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 _TOOLS_LINUX_XTENSA_SYSTEM_H
#define _TOOLS_LINUX_XTENSA_SYSTEM_H
#define mb() ({ __asm__ __volatile__("memw" : : : "memory"); })
#define rmb() barrier()
#define wmb() mb()
#endif /* _TOOLS_LINUX_XTENSA_SYSTEM_H */