##------------------------------------------------------------------------------ | |
# | |
# MemoryFence() for AArch64 | |
# | |
# Copyright (c) 2013, ARM Ltd. All rights reserved. | |
# | |
# SPDX-License-Identifier: BSD-2-Clause-Patent | |
# | |
##------------------------------------------------------------------------------ | |
.text | |
.p2align 2 | |
GCC_ASM_EXPORT(MemoryFence) | |
#/** | |
# Used to serialize load and store operations. | |
# | |
# All loads and stores that proceed calls to this function are guaranteed to be | |
# globally visible when this function returns. | |
# | |
#**/ | |
#VOID | |
#EFIAPI | |
#MemoryFence ( | |
# VOID | |
# ); | |
# | |
ASM_PFX(MemoryFence): | |
// System wide Data Memory Barrier. | |
dmb sy | |
ret |