ArmPkg/ArmLib: remove CCSIDR based cache info routines

[mirror_edk2.git] / ArmPkg / Library / ArmLib / ArmV7 / ArmV7Lib.c

/** @file\r
\r
  Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r
  Copyright (c) 2011 - 2014, ARM Limited. All rights reserved.\r
\r
  This program and the accompanying materials\r
  are licensed and made available under the terms and conditions of the BSD License\r
  which accompanies this distribution.  The full text of the license may be found at\r
  http://opensource.org/licenses/bsd-license.php\r
\r
  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
#include <Uefi.h>\r
#include <Chipset/ArmV7.h>\r
#include <Library/ArmLib.h>\r
#include <Library/BaseLib.h>\r
#include <Library/IoLib.h>\r
#include "ArmV7Lib.h"\r
#include "ArmLibPrivate.h"\r
\r
UINTN\r
EFIAPI\r
ArmDataCacheLineLength (\r
  VOID\r
  )\r
{\r
  UINT32 CCSIDR = ReadCCSIDR (0) & 7;\r
\r
  // * 4 converts to bytes\r
  return (1 << (CCSIDR + 2)) * 4;\r
}\r
\r
UINTN\r
EFIAPI\r
ArmInstructionCacheLineLength (\r
  VOID\r
  )\r
{\r
  UINT32 CCSIDR = ReadCCSIDR (1) & 7;\r
\r
  // * 4 converts to bytes\r
  return (1 << (CCSIDR + 2)) * 4;\r
\r
//  return 64;\r
}\r
\r
\r
VOID\r
ArmV7DataCacheOperation (\r
  IN  ARM_V7_CACHE_OPERATION  DataCacheOperation\r
  )\r
{\r
  UINTN     SavedInterruptState;\r
\r
  SavedInterruptState = ArmGetInterruptState ();\r
  ArmDisableInterrupts ();\r
\r
  ArmV7AllDataCachesOperation (DataCacheOperation);\r
\r
  ArmDrainWriteBuffer ();\r
\r
  if (SavedInterruptState) {\r
    ArmEnableInterrupts ();\r
  }\r
}\r
\r
VOID\r
EFIAPI\r
ArmInvalidateDataCache (\r
  VOID\r
  )\r
{\r
  ArmDrainWriteBuffer ();\r
  ArmV7DataCacheOperation (ArmInvalidateDataCacheEntryBySetWay);\r
}\r
\r
VOID\r
EFIAPI\r
ArmCleanInvalidateDataCache (\r
  VOID\r
  )\r
{\r
  ArmDrainWriteBuffer ();\r
  ArmV7DataCacheOperation (ArmCleanInvalidateDataCacheEntryBySetWay);\r
}\r
\r
VOID\r
EFIAPI\r
ArmCleanDataCache (\r
  VOID\r
  )\r
{\r
  ArmDrainWriteBuffer ();\r
  ArmV7DataCacheOperation (ArmCleanDataCacheEntryBySetWay);\r
}\r