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