UefiCpuPkg: Move AsmRelocateApLoopStart from Mpfuncs.nasm to AmdSev.nasm

[mirror_edk2.git] / ArmPkg / Library / ArmCacheMaintenanceLib / ArmCacheMaintenanceLib.c

/** @file\r
\r
  Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r
  Copyright (c) 2011 - 2021, ARM Limited. All rights reserved.\r
\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
#include <Base.h>\r
#include <Library/ArmLib.h>\r
#include <Library/DebugLib.h>\r
#include <Library/PcdLib.h>\r
\r
STATIC\r
VOID\r
CacheRangeOperation (\r
  IN  VOID            *Start,\r
  IN  UINTN           Length,\r
  IN  LINE_OPERATION  LineOperation,\r
  IN  UINTN           LineLength\r
  )\r
{\r
  UINTN  ArmCacheLineAlignmentMask;\r
  // Align address (rounding down)\r
  UINTN  AlignedAddress;\r
  UINTN  EndAddress;\r
\r
  ArmCacheLineAlignmentMask = LineLength - 1;\r
  AlignedAddress            = (UINTN)Start - ((UINTN)Start & ArmCacheLineAlignmentMask);\r
  EndAddress                = (UINTN)Start + Length;\r
\r
  // Perform the line operation on an address in each cache line\r
  while (AlignedAddress < EndAddress) {\r
    LineOperation (AlignedAddress);\r
    AlignedAddress += LineLength;\r
  }\r
\r
  ArmDataSynchronizationBarrier ();\r
}\r
\r
VOID\r
EFIAPI\r
InvalidateInstructionCache (\r
  VOID\r
  )\r
{\r
  ASSERT (FALSE);\r
}\r
\r
VOID\r
EFIAPI\r
InvalidateDataCache (\r
  VOID\r
  )\r
{\r
  ASSERT (FALSE);\r
}\r
\r
VOID *\r
EFIAPI\r
InvalidateInstructionCacheRange (\r
  IN      VOID   *Address,\r
  IN      UINTN  Length\r
  )\r
{\r
  CacheRangeOperation (\r
    Address,\r
    Length,\r
    ArmCleanDataCacheEntryToPoUByMVA,\r
    ArmDataCacheLineLength ()\r
    );\r
  CacheRangeOperation (\r
    Address,\r
    Length,\r
    ArmInvalidateInstructionCacheEntryToPoUByMVA,\r
    ArmInstructionCacheLineLength ()\r
    );\r
\r
  ArmInstructionSynchronizationBarrier ();\r
\r
  return Address;\r
}\r
\r
VOID\r
EFIAPI\r
WriteBackInvalidateDataCache (\r
  VOID\r
  )\r
{\r
  ASSERT (FALSE);\r
}\r
\r
VOID *\r
EFIAPI\r
WriteBackInvalidateDataCacheRange (\r
  IN      VOID   *Address,\r
  IN      UINTN  Length\r
  )\r
{\r
  CacheRangeOperation (\r
    Address,\r
    Length,\r
    ArmCleanInvalidateDataCacheEntryByMVA,\r
    ArmDataCacheLineLength ()\r
    );\r
  return Address;\r
}\r
\r
VOID\r
EFIAPI\r
WriteBackDataCache (\r
  VOID\r
  )\r
{\r
  ASSERT (FALSE);\r
}\r
\r
VOID *\r
EFIAPI\r
WriteBackDataCacheRange (\r
  IN      VOID   *Address,\r
  IN      UINTN  Length\r
  )\r
{\r
  CacheRangeOperation (\r
    Address,\r
    Length,\r
    ArmCleanDataCacheEntryByMVA,\r
    ArmDataCacheLineLength ()\r
    );\r
  return Address;\r
}\r
\r
VOID *\r
EFIAPI\r
InvalidateDataCacheRange (\r
  IN      VOID   *Address,\r
  IN      UINTN  Length\r
  )\r
{\r
  CacheRangeOperation (\r
    Address,\r
    Length,\r
    ArmInvalidateDataCacheEntryByMVA,\r
    ArmDataCacheLineLength ()\r
    );\r
  return Address;\r
}\r