Updating ArmLib.h to add functions needed to turn on paging in CpuDxe. Also added...

[mirror_edk2.git] / ArmPkg / Library / ArmLib / Common / ArmLib.c

/** @file\r
\r
  Copyright (c) 2008-2009, Apple Inc. All rights reserved.\r
  \r
  All rights reserved. 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
\r
#include <Base.h>\r
\r
#include <Library/ArmLib.h>\r
#include <Library/DebugLib.h>\r
#include <Library/PcdLib.h>\r
\r
#include "ArmLibPrivate.h"\r
\r
VOID\r
EFIAPI\r
ArmCacheInformation (\r
  OUT ARM_CACHE_INFO  *CacheInfo\r
  )\r
{\r
  if (CacheInfo != NULL) {\r
    CacheInfo->Type                           = ArmCacheType();\r
    CacheInfo->Architecture                   = ArmCacheArchitecture();\r
    CacheInfo->DataCachePresent               = ArmDataCachePresent();\r
    CacheInfo->DataCacheSize                  = ArmDataCacheSize();\r
    CacheInfo->DataCacheAssociativity         = ArmDataCacheAssociativity();\r
    CacheInfo->DataCacheLineLength            = ArmDataCacheLineLength();\r
    CacheInfo->InstructionCachePresent        = ArmInstructionCachePresent();\r
    CacheInfo->InstructionCacheSize           = ArmInstructionCacheSize();\r
    CacheInfo->InstructionCacheAssociativity  = ArmInstructionCacheAssociativity();\r
    CacheInfo->InstructionCacheLineLength     = ArmInstructionCacheLineLength();\r
  }\r
}\r
\r
VOID\r
EFIAPI\r
ArmSwitchProcessorMode (\r
  IN ARM_PROCESSOR_MODE Mode\r
  )\r
{\r
  CPSRMaskInsert(ARM_PROCESSOR_MODE_MASK, Mode);\r
}\r
\r
\r
ARM_PROCESSOR_MODE\r
EFIAPI\r
ArmProcessorMode (\r
  VOID\r
  )\r
{\r
  return (ARM_PROCESSOR_MODE)(CPSRRead() & (UINT32)ARM_PROCESSOR_MODE_MASK);\r
}\r