ArmPkg/Library/ArmLib/AArch64/AArch64Lib.c

   1 /** @file
   2
   3   Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
   4   Portions copyright (c) 2011 - 2014, ARM Ltd. All rights reserved.<BR>
   5
   6   SPDX-License-Identifier: BSD-2-Clause-Patent
   7
   8 **/
   9
  10 #include <Uefi.h>
  11 #include <Chipset/AArch64.h>
  12 #include <Library/ArmLib.h>
  13 #include <Library/BaseLib.h>
  14 #include <Library/IoLib.h>
  15 #include "AArch64Lib.h"
  16 #include "ArmLibPrivate.h"
  17
  18 VOID
  19 AArch64DataCacheOperation (
  20   IN  AARCH64_CACHE_OPERATION  DataCacheOperation
  21   )
  22 {
  23   UINTN     SavedInterruptState;
  24
  25   SavedInterruptState = ArmGetInterruptState ();
  26   ArmDisableInterrupts();
  27
  28   AArch64AllDataCachesOperation (DataCacheOperation);
  29
  30   ArmDataSynchronizationBarrier ();
  31
  32   if (SavedInterruptState) {
  33     ArmEnableInterrupts ();
  34   }
  35 }
  36
  37 VOID
  38 EFIAPI
  39 ArmInvalidateDataCache (
  40   VOID
  41   )
  42 {
  43   ArmDataSynchronizationBarrier ();
  44   AArch64DataCacheOperation (ArmInvalidateDataCacheEntryBySetWay);
  45 }
  46
  47 VOID
  48 EFIAPI
  49 ArmCleanInvalidateDataCache (
  50   VOID
  51   )
  52 {
  53   ArmDataSynchronizationBarrier ();
  54   AArch64DataCacheOperation (ArmCleanInvalidateDataCacheEntryBySetWay);
  55 }
  56
  57 VOID
  58 EFIAPI
  59 ArmCleanDataCache (
  60   VOID
  61   )
  62 {
  63   ArmDataSynchronizationBarrier ();
  64   AArch64DataCacheOperation (ArmCleanDataCacheEntryBySetWay);
  65 }