forked from Minki/linux
1ce790913b
This defines __smp_xxx barriers for xtensa, for use by virtualization. smp_xxx barriers are removed as they are defined correctly by asm-generic/barriers.h Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
22 lines
542 B
C
22 lines
542 B
C
/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 2001 - 2012 Tensilica Inc.
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*/
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#ifndef _XTENSA_SYSTEM_H
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#define _XTENSA_SYSTEM_H
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#define mb() ({ __asm__ __volatile__("memw" : : : "memory"); })
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#define rmb() barrier()
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#define wmb() mb()
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#define __smp_mb__before_atomic() barrier()
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#define __smp_mb__after_atomic() barrier()
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#include <asm-generic/barrier.h>
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#endif /* _XTENSA_SYSTEM_H */
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