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- /*
- * Copied from the kernel sources to tools/perf/:
- *
- * Generic barrier definitions, originally based on MN10300 definitions.
- *
- * It should be possible to use these on really simple architectures,
- * but it serves more as a starting point for new ports.
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
- #ifndef __TOOLS_LINUX_ASM_GENERIC_BARRIER_H
- #define __TOOLS_LINUX_ASM_GENERIC_BARRIER_H
- #ifndef __ASSEMBLY__
- #include <linux/compiler.h>
- /*
- * Force strict CPU ordering. And yes, this is required on UP too when we're
- * talking to devices.
- *
- * Fall back to compiler barriers if nothing better is provided.
- */
- #ifndef mb
- #define mb() barrier()
- #endif
- #ifndef rmb
- #define rmb() mb()
- #endif
- #ifndef wmb
- #define wmb() mb()
- #endif
- #endif /* !__ASSEMBLY__ */
- #endif /* __TOOLS_LINUX_ASM_GENERIC_BARRIER_H */
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