tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel / tools / arch / xtensa / include / asm / barrier.h
at v5.9 18 lines 502 B view raw
1/* 2 * Copied from the kernel sources to tools/: 3 * 4 * This file is subject to the terms and conditions of the GNU General Public 5 * License. See the file "COPYING" in the main directory of this archive 6 * for more details. 7 * 8 * Copyright (C) 2001 - 2012 Tensilica Inc. 9 */ 10 11#ifndef _TOOLS_LINUX_XTENSA_SYSTEM_H 12#define _TOOLS_LINUX_XTENSA_SYSTEM_H 13 14#define mb() ({ __asm__ __volatile__("memw" : : : "memory"); }) 15#define rmb() barrier() 16#define wmb() mb() 17 18#endif /* _TOOLS_LINUX_XTENSA_SYSTEM_H */