| ##------------------------------------------------------------------------------ | |
| # | |
| # 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): | |
| AARCH64_BTI(c) | |
| // System wide Data Memory Barrier. | |
| dmb sy | |
| ret |