MdePkg/Library/BaseLib/Arm/MemoryFence.asm

   1 ;------------------------------------------------------------------------------
   2 ;
   3 ; MemoryFence() for AArch64
   4 ;
   5 ; Copyright (c) 2013, ARM Ltd. All rights reserved.
   6 ;
   7 ; SPDX-License-Identifier: BSD-2-Clause-Patent
   8 ;
   9 ;------------------------------------------------------------------------------
  10
  11     EXPORT MemoryFence
  12
  13     AREA MemoryBarriers, CODE, READONLY
  14
  15 ;/**
  16 ;  Used to serialize load and store operations.
  17 ;
  18 ;  All loads and stores that proceed calls to this function are guaranteed to be
  19 ;  globally visible when this function returns.
  20 ;
  21 ;**/
  22 ;VOID
  23 ;EFIAPI
  24 ;MemoryFence (
  25 ;  VOID
  26 ;  );
  27 ;
  28 MemoryFence FUNCTION
  29     dmb
  30     bx      lr
  31     ENDFUNC
  32
  33     END