hc
2025-02-14 bbb9540dc49f70f6b703d1c8d1b85fa5f602d86e
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/* SPDX-License-Identifier: GPL-2.0 */
#include <linux/compiler.h>
#if defined(__i386__) || defined(__x86_64__)
#include "../../arch/x86/include/asm/barrier.h"
#elif defined(__arm__)
#include "../../arch/arm/include/asm/barrier.h"
#elif defined(__aarch64__)
#include "../../arch/arm64/include/asm/barrier.h"
#elif defined(__powerpc__)
#include "../../arch/powerpc/include/asm/barrier.h"
#elif defined(__s390__)
#include "../../arch/s390/include/asm/barrier.h"
#elif defined(__sh__)
#include "../../arch/sh/include/asm/barrier.h"
#elif defined(__sparc__)
#include "../../arch/sparc/include/asm/barrier.h"
#elif defined(__tile__)
#include "../../arch/tile/include/asm/barrier.h"
#elif defined(__alpha__)
#include "../../arch/alpha/include/asm/barrier.h"
#elif defined(__mips__)
#include "../../arch/mips/include/asm/barrier.h"
#elif defined(__ia64__)
#include "../../arch/ia64/include/asm/barrier.h"
#elif defined(__xtensa__)
#include "../../arch/xtensa/include/asm/barrier.h"
#elif defined(__nds32__)
#include "../../arch/nds32/include/asm/barrier.h"
#else
#include <asm-generic/barrier.h>
#endif
 
/*
 * Generic fallback smp_*() definitions for archs that haven't
 * been updated yet.
 */
 
#ifndef smp_rmb
# define smp_rmb()    rmb()
#endif
 
#ifndef smp_wmb
# define smp_wmb()    wmb()
#endif
 
#ifndef smp_mb
# define smp_mb()    mb()
#endif
 
#ifndef smp_store_release
# define smp_store_release(p, v)        \
do {                        \
   smp_mb();                \
   WRITE_ONCE(*p, v);            \
} while (0)
#endif
 
#ifndef smp_load_acquire
# define smp_load_acquire(p)            \
({                        \
   typeof(*p) ___p1 = READ_ONCE(*p);    \
   smp_mb();                \
   ___p1;                    \
})
#endif