MdePkg/Library/BaseCpuLib/AArch64/CpuFlushTlb.S

   1 #------------------------------------------------------------------------------
   2 #
   3 # CpuFlushTlb() for ARM
   4 #
   5 # Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
   6 # Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
   7 # Portions copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.<BR>
   8 # SPDX-License-Identifier: BSD-2-Clause-Patent
   9 #
  10 #------------------------------------------------------------------------------
  11
  12 .text
  13 .p2align 2
  14 GCC_ASM_EXPORT(CpuFlushTlb)
  15
  16 #/**
  17 #  Flushes all the Translation Lookaside Buffers(TLB) entries in a CPU.
  18 #
  19 #  Flushes all the Translation Lookaside Buffers(TLB) entries in a CPU.
  20 #
  21 #**/
  22 #VOID
  23 #EFIAPI
  24 #CpuFlushTlb (
  25 #  VOID
  26 #  )#
  27 #
  28 ASM_PFX(CpuFlushTlb):
  29   tlbi  vmalle1                 // Invalidate Inst TLB and Data TLB
  30   dsb   sy
  31   isb
  32   ret