ArmPkg/ArmLib: remove unused ArmCleanDataCacheToPoU()

[mirror_edk2.git] / ArmPkg / Library / ArmLib / AArch64 / AArch64Lib.c

/** @file\r
\r
  Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r
  Portions copyright (c) 2011 - 2014, ARM Ltd. All rights reserved.<BR>\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
\r
#include <Uefi.h>\r
#include <Chipset/AArch64.h>\r
#include <Library/ArmLib.h>\r
#include <Library/BaseLib.h>\r
#include <Library/IoLib.h>\r
#include "AArch64Lib.h"\r
#include "ArmLibPrivate.h"\r
\r
ARM_CACHE_TYPE\r
EFIAPI\r
ArmCacheType (\r
  VOID\r
  )\r
{\r
  return ARM_CACHE_TYPE_WRITE_BACK;\r
}\r
\r
ARM_CACHE_ARCHITECTURE\r
EFIAPI\r
ArmCacheArchitecture (\r
  VOID\r
  )\r
{\r
  UINT32 CLIDR = ReadCLIDR ();\r
\r
  return (ARM_CACHE_ARCHITECTURE)CLIDR; // BugBug Fix Me\r
}\r
\r
BOOLEAN\r
EFIAPI\r
ArmDataCachePresent (\r
  VOID\r
  )\r
{\r
  UINT32 CLIDR = ReadCLIDR ();\r
\r
  if ((CLIDR & 0x2) == 0x2) {\r
    // Instruction cache exists\r
    return TRUE;\r
  }\r
  if ((CLIDR & 0x7) == 0x4) {\r
    // Unified cache\r
    return TRUE;\r
  }\r
\r
  return FALSE;\r
}\r
\r
UINTN\r
EFIAPI\r
ArmDataCacheSize (\r
  VOID\r
  )\r
{\r
  UINT32 NumSets;\r
  UINT32 Associativity;\r
  UINT32 LineSize;\r
  UINT32 CCSIDR = ReadCCSIDR (0);\r
\r
  LineSize      = (1 << ((CCSIDR & 0x7) + 2));\r
  Associativity = ((CCSIDR >> 3) & 0x3ff) + 1;\r
  NumSets       = ((CCSIDR >> 13) & 0x7fff) + 1;\r
\r
  // LineSize is in words (4 byte chunks)\r
  return  NumSets * Associativity * LineSize * 4;\r
}\r
\r
UINTN\r
EFIAPI\r
ArmDataCacheAssociativity (\r
  VOID\r
  )\r
{\r
  UINT32 CCSIDR = ReadCCSIDR (0);\r
\r
  return ((CCSIDR >> 3) & 0x3ff) + 1;\r
}\r
\r
UINTN\r
ArmDataCacheSets (\r
  VOID\r
  )\r
{\r
  UINT32 CCSIDR = ReadCCSIDR (0);\r
\r
  return ((CCSIDR >> 13) & 0x7fff) + 1;\r
}\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
BOOLEAN\r
EFIAPI\r
ArmInstructionCachePresent (\r
  VOID\r
  )\r
{\r
  UINT32 CLIDR = ReadCLIDR ();\r
\r
  if ((CLIDR & 1) == 1) {\r
    // Instruction cache exists\r
    return TRUE;\r
  }\r
  if ((CLIDR & 0x7) == 0x4) {\r
    // Unified cache\r
    return TRUE;\r
  }\r
\r
  return FALSE;\r
}\r
\r
UINTN\r
EFIAPI\r
ArmInstructionCacheSize (\r
  VOID\r
  )\r
{\r
  UINT32 NumSets;\r
  UINT32 Associativity;\r
  UINT32 LineSize;\r
  UINT32 CCSIDR = ReadCCSIDR (1);\r
\r
  LineSize      = (1 << ((CCSIDR & 0x7) + 2));\r
  Associativity = ((CCSIDR >> 3) & 0x3ff) + 1;\r
  NumSets       = ((CCSIDR >> 13) & 0x7fff) + 1;\r
\r
  // LineSize is in words (4 byte chunks)\r
  return  NumSets * Associativity * LineSize * 4;\r
}\r
\r
UINTN\r
EFIAPI\r
ArmInstructionCacheAssociativity (\r
  VOID\r
  )\r
{\r
  UINT32 CCSIDR = ReadCCSIDR (1);\r
\r
  return ((CCSIDR >> 3) & 0x3ff) + 1;\r
}\r
\r
UINTN\r
EFIAPI\r
ArmInstructionCacheSets (\r
  VOID\r
  )\r
{\r
  UINT32 CCSIDR = ReadCCSIDR (1);\r
\r
  return ((CCSIDR >> 13) & 0x7fff) + 1;\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
\r
\r
VOID\r
AArch64DataCacheOperation (\r
  IN  AARCH64_CACHE_OPERATION  DataCacheOperation\r
  )\r
{\r
  UINTN     SavedInterruptState;\r
\r
  SavedInterruptState = ArmGetInterruptState ();\r
  ArmDisableInterrupts();\r
\r
  AArch64AllDataCachesOperation (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
  AArch64DataCacheOperation (ArmInvalidateDataCacheEntryBySetWay);\r
}\r
\r
VOID\r
EFIAPI\r
ArmCleanInvalidateDataCache (\r
  VOID\r
  )\r
{\r
  ArmDrainWriteBuffer ();\r
  AArch64DataCacheOperation (ArmCleanInvalidateDataCacheEntryBySetWay);\r
}\r
\r
VOID\r
EFIAPI\r
ArmCleanDataCache (\r
  VOID\r
  )\r
{\r
  ArmDrainWriteBuffer ();\r
  AArch64DataCacheOperation (ArmCleanDataCacheEntryBySetWay);\r
}\r