MdePkg/Library/BaseCpuLib/Arm/CpuFlushTlb.asm

   1 ;------------------------------------------------------------------------------
   2 ;
   3 ; CpuFlushTlb() for ARM
   4 ;
   5 ; Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
   6 ; Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
   7 ; SPDX-License-Identifier: BSD-2-Clause-Patent
   8 ;
   9 ;------------------------------------------------------------------------------
  10
  11   EXPORT CpuFlushTlb
  12   AREA cpu_flush_tlb, CODE, READONLY
  13
  14 ;/**
  15 ;  Flushes all the Translation Lookaside Buffers(TLB) entries in a CPU.
  16 ;
  17 ;  Flushes all the Translation Lookaside Buffers(TLB) entries in a CPU.
  18 ;
  19 ;**/
  20 ;VOID
  21 ;EFIAPI
  22 ;CpuFlushTlb (
  23 ;  VOID
  24 ;  );
  25 ;
  26 CpuFlushTlb
  27     MOV r0,#0
  28     MCR p15,0,r0,c8,c5,0        ;Invalidate all the unlocked entried in TLB
  29     BX LR
  30
  31   END