64 lines
1.5 KiB
C
64 lines
1.5 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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#include <linux/compiler.h>
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#if defined(__i386__) || defined(__x86_64__)
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#include "../../arch/x86/include/asm/barrier.h"
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#elif defined(__arm__)
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#include "../../arch/arm/include/asm/barrier.h"
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#elif defined(__aarch64__)
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#include "../../arch/arm64/include/asm/barrier.h"
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#elif defined(__powerpc__)
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#include "../../arch/powerpc/include/asm/barrier.h"
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#elif defined(__s390__)
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#include "../../arch/s390/include/asm/barrier.h"
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#elif defined(__sh__)
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#include "../../arch/sh/include/asm/barrier.h"
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#elif defined(__sparc__)
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#include "../../arch/sparc/include/asm/barrier.h"
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#elif defined(__tile__)
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#include "../../arch/tile/include/asm/barrier.h"
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#elif defined(__alpha__)
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#include "../../arch/alpha/include/asm/barrier.h"
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#elif defined(__mips__)
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#include "../../arch/mips/include/asm/barrier.h"
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#elif defined(__ia64__)
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#include "../../arch/ia64/include/asm/barrier.h"
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#elif defined(__xtensa__)
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#include "../../arch/xtensa/include/asm/barrier.h"
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#else
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#include <asm-generic/barrier.h>
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#endif
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/*
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* Generic fallback smp_*() definitions for archs that haven't
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* been updated yet.
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*/
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#ifndef smp_rmb
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# define smp_rmb() rmb()
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#endif
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#ifndef smp_wmb
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# define smp_wmb() wmb()
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#endif
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#ifndef smp_mb
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# define smp_mb() mb()
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#endif
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#ifndef smp_store_release
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# define smp_store_release(p, v) \
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do { \
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smp_mb(); \
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WRITE_ONCE(*p, v); \
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} while (0)
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#endif
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#ifndef smp_load_acquire
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# define smp_load_acquire(p) \
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({ \
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typeof(*p) ___p1 = READ_ONCE(*p); \
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smp_mb(); \
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___p1; \
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})
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#endif
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