64 lines
1.5 KiB
C
64 lines
1.5 KiB
C
/* 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"
|
|
#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
|