MdePkg/Library/BaseCpuLib/Arm/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 # This program and the accompanying materials
   8 # are licensed and made available under the terms and conditions of the BSD License
   9 # which accompanies this distribution.  The full text of the license may be found at
  10 # http://opensource.org/licenses/bsd-license.php.
  11 #
  12 # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  13 # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  14 #
  15 #------------------------------------------------------------------------------
  16
  17 .text
  18 .p2align 2
  19 .globl ASM_PFX(CpuFlushTlb)
  20 INTERWORK_FUNC(CpuFlushTlb)
  21
  22 #/**
  23 #  Flushes all the Translation Lookaside Buffers(TLB) entries in a CPU.
  24 #
  25 #  Flushes all the Translation Lookaside Buffers(TLB) entries in a CPU.
  26 #
  27 #**/
  28 #VOID
  29 #EFIAPI
  30 #CpuFlushTlb (
  31 #  VOID
  32 #  )#
  33 #
  34 ASM_PFX(CpuFlushTlb):
  35     mov r0,#0
  36     mcr p15,0,r0,c8,c5,0        // Invalidate all the unlocked entried in TLB
  37     bx  LR