cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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barrier.h (1537B)

      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