1#if defined(__i386__) || defined(__x86_64__)
 2#include "../../arch/x86/include/asm/barrier.h"
 3#elif defined(__arm__)
 4#include "../../arch/arm/include/asm/barrier.h"
 5#elif defined(__aarch64__)
 6#include "../../arch/arm64/include/asm/barrier.h"
 7#elif defined(__powerpc__)
 8#include "../../arch/powerpc/include/asm/barrier.h"
 9#elif defined(__s390__)
10#include "../../arch/s390/include/asm/barrier.h"
11#elif defined(__sh__)
12#include "../../arch/sh/include/asm/barrier.h"
13#elif defined(__sparc__)
14#include "../../arch/sparc/include/asm/barrier.h"
15#elif defined(__tile__)
16#include "../../arch/tile/include/asm/barrier.h"
17#elif defined(__alpha__)
18#include "../../arch/alpha/include/asm/barrier.h"
19#elif defined(__mips__)
20#include "../../arch/mips/include/asm/barrier.h"
21#elif defined(__ia64__)
22#include "../../arch/ia64/include/asm/barrier.h"
23#elif defined(__xtensa__)
24#include "../../arch/xtensa/include/asm/barrier.h"
25#else
26#include <asm-generic/barrier.h>
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
27#endif

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#include <linux/compiler.h>
 3#if defined(__i386__) || defined(__x86_64__)
 4#include "../../arch/x86/include/asm/barrier.h"
 5#elif defined(__arm__)
 6#include "../../arch/arm/include/asm/barrier.h"
 7#elif defined(__aarch64__)
 8#include "../../arch/arm64/include/asm/barrier.h"
 9#elif defined(__powerpc__)
10#include "../../arch/powerpc/include/asm/barrier.h"
11#elif defined(__s390__)
12#include "../../arch/s390/include/asm/barrier.h"
13#elif defined(__sh__)
14#include "../../arch/sh/include/asm/barrier.h"
15#elif defined(__sparc__)
16#include "../../arch/sparc/include/asm/barrier.h"
17#elif defined(__tile__)
18#include "../../arch/tile/include/asm/barrier.h"
19#elif defined(__alpha__)
20#include "../../arch/alpha/include/asm/barrier.h"
21#elif defined(__mips__)
22#include "../../arch/mips/include/asm/barrier.h"
23#elif defined(__ia64__)
24#include "../../arch/ia64/include/asm/barrier.h"
25#elif defined(__xtensa__)
26#include "../../arch/xtensa/include/asm/barrier.h"
27#else
28#include <asm-generic/barrier.h>
29#endif
30
31/*
32 * Generic fallback smp_*() definitions for archs that haven't
33 * been updated yet.
34 */
35
36#ifndef smp_rmb
37# define smp_rmb()	rmb()
38#endif
39
40#ifndef smp_wmb
41# define smp_wmb()	wmb()
42#endif
43
44#ifndef smp_mb
45# define smp_mb()	mb()
46#endif
47
48#ifndef smp_store_release
49# define smp_store_release(p, v)		\
50do {						\
51	smp_mb();				\
52	WRITE_ONCE(*p, v);			\
53} while (0)
54#endif
55
56#ifndef smp_load_acquire
57# define smp_load_acquire(p)			\
58({						\
59	typeof(*p) ___p1 = READ_ONCE(*p);	\
60	smp_mb();				\
61	___p1;					\
62})
63#endif