arch_arm_memory_barrier.h

// Copyright (c) Electronic Arts Inc. All rights reserved.
 
 
#ifndef EASTL_ATOMIC_INTERNAL_ARCH_ARM_MEMORY_BARRIER_H
#define EASTL_ATOMIC_INTERNAL_ARCH_ARM_MEMORY_BARRIER_H
 
#if defined(EA_PRAGMA_ONCE_SUPPORTED)
    #pragma once
#endif
 
 
#if defined(EA_COMPILER_MSVC) && !defined(EA_COMPILER_CLANG_CL)
 
    #if defined(EA_PROCESSOR_ARM32)
 
        #define EASTL_ARM_DMB_ISH _ARM_BARRIER_ISH
 
        #define EASTL_ARM_DMB_ISHST _ARM_BARRIER_ISHST
 
        #define EASTL_ARM_DMB_ISHLD _ARM_BARRIER_ISH
 
    #elif defined(EA_PROCESSOR_ARM64)
 
        #define EASTL_ARM_DMB_ISH _ARM64_BARRIER_ISH
 
        #define EASTL_ARM_DMB_ISHST _ARM64_BARRIER_ISHST
 
        #define EASTL_ARM_DMB_ISHLD _ARM64_BARRIER_ISHLD
 
    #endif
 
 
    #define EASTL_ARCH_ATOMIC_ARM_EMIT_DMB(option)  \
        EASTL_ATOMIC_COMPILER_BARRIER();            \
        __dmb(option);                              \
        EASTL_ATOMIC_COMPILER_BARRIER()
 
 
#elif defined(EA_COMPILER_GNUC) || defined(__clang__)
 
    #define EASTL_ARM_DMB_ISH ish
 
    #define EASTL_ARM_DMB_ISHST ishst
 
    #if defined(EA_PROCESSOR_ARM32)
 
        #define EASTL_ARM_DMB_ISHLD ish
 
    #elif defined(EA_PROCESSOR_ARM64)
 
        #define EASTL_ARM_DMB_ISHLD ishld
 
    #endif
 
 
    #define EASTL_ARCH_ATOMIC_ARM_EMIT_DMB(option)                                      \
        __asm__ __volatile__ ("dmb " EA_STRINGIFY(option) ::: "memory")
 
 
#endif
 
 
//
// void EASTL_ARCH_ATOMIC_CPU_MB()
//
#define EASTL_ARCH_ATOMIC_CPU_MB()              \
    EASTL_ARCH_ATOMIC_ARM_EMIT_DMB(EASTL_ARM_DMB_ISH)
 
 
//
// void EASTL_ARCH_ATOMIC_CPU_WMB()
//
#define EASTL_ARCH_ATOMIC_CPU_WMB()             \
    EASTL_ARCH_ATOMIC_ARM_EMIT_DMB(EASTL_ARM_DMB_ISHST)
 
 
//
// void EASTL_ARCH_ATOMIC_CPU_RMB()
//
#define EASTL_ARCH_ATOMIC_CPU_RMB()             \
    EASTL_ARCH_ATOMIC_ARM_EMIT_DMB(EASTL_ARM_DMB_ISHLD)
 
 
#endif /* EASTL_ATOMIC_INTERNAL_ARCH_ARM_MEMORY_BARRIER_H */