162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 262306a36Sopenharmony_ci#include <linux/compiler.h> 362306a36Sopenharmony_ci#if defined(__i386__) || defined(__x86_64__) 462306a36Sopenharmony_ci#include "../../arch/x86/include/asm/barrier.h" 562306a36Sopenharmony_ci#elif defined(__arm__) 662306a36Sopenharmony_ci#include "../../arch/arm/include/asm/barrier.h" 762306a36Sopenharmony_ci#elif defined(__aarch64__) 862306a36Sopenharmony_ci#include "../../arch/arm64/include/asm/barrier.h" 962306a36Sopenharmony_ci#elif defined(__powerpc__) 1062306a36Sopenharmony_ci#include "../../arch/powerpc/include/asm/barrier.h" 1162306a36Sopenharmony_ci#elif defined(__s390__) 1262306a36Sopenharmony_ci#include "../../arch/s390/include/asm/barrier.h" 1362306a36Sopenharmony_ci#elif defined(__sh__) 1462306a36Sopenharmony_ci#include "../../arch/sh/include/asm/barrier.h" 1562306a36Sopenharmony_ci#elif defined(__sparc__) 1662306a36Sopenharmony_ci#include "../../arch/sparc/include/asm/barrier.h" 1762306a36Sopenharmony_ci#elif defined(__tile__) 1862306a36Sopenharmony_ci#include "../../arch/tile/include/asm/barrier.h" 1962306a36Sopenharmony_ci#elif defined(__alpha__) 2062306a36Sopenharmony_ci#include "../../arch/alpha/include/asm/barrier.h" 2162306a36Sopenharmony_ci#elif defined(__mips__) 2262306a36Sopenharmony_ci#include "../../arch/mips/include/asm/barrier.h" 2362306a36Sopenharmony_ci#elif defined(__ia64__) 2462306a36Sopenharmony_ci#include "../../arch/ia64/include/asm/barrier.h" 2562306a36Sopenharmony_ci#elif defined(__xtensa__) 2662306a36Sopenharmony_ci#include "../../arch/xtensa/include/asm/barrier.h" 2762306a36Sopenharmony_ci#else 2862306a36Sopenharmony_ci#include <asm-generic/barrier.h> 2962306a36Sopenharmony_ci#endif 3062306a36Sopenharmony_ci 3162306a36Sopenharmony_ci/* 3262306a36Sopenharmony_ci * Generic fallback smp_*() definitions for archs that haven't 3362306a36Sopenharmony_ci * been updated yet. 3462306a36Sopenharmony_ci */ 3562306a36Sopenharmony_ci 3662306a36Sopenharmony_ci#ifndef smp_rmb 3762306a36Sopenharmony_ci# define smp_rmb() rmb() 3862306a36Sopenharmony_ci#endif 3962306a36Sopenharmony_ci 4062306a36Sopenharmony_ci#ifndef smp_wmb 4162306a36Sopenharmony_ci# define smp_wmb() wmb() 4262306a36Sopenharmony_ci#endif 4362306a36Sopenharmony_ci 4462306a36Sopenharmony_ci#ifndef smp_mb 4562306a36Sopenharmony_ci# define smp_mb() mb() 4662306a36Sopenharmony_ci#endif 4762306a36Sopenharmony_ci 4862306a36Sopenharmony_ci#ifndef smp_store_release 4962306a36Sopenharmony_ci# define smp_store_release(p, v) \ 5062306a36Sopenharmony_cido { \ 5162306a36Sopenharmony_ci smp_mb(); \ 5262306a36Sopenharmony_ci WRITE_ONCE(*p, v); \ 5362306a36Sopenharmony_ci} while (0) 5462306a36Sopenharmony_ci#endif 5562306a36Sopenharmony_ci 5662306a36Sopenharmony_ci#ifndef smp_load_acquire 5762306a36Sopenharmony_ci# define smp_load_acquire(p) \ 5862306a36Sopenharmony_ci({ \ 5962306a36Sopenharmony_ci typeof(*p) ___p1 = READ_ONCE(*p); \ 6062306a36Sopenharmony_ci smp_mb(); \ 6162306a36Sopenharmony_ci ___p1; \ 6262306a36Sopenharmony_ci}) 6362306a36Sopenharmony_ci#endif 64