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/** @file
Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
Copyright (c) 2011 - 2014, ARM Ltd. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <Base.h>
#include <Library/ArmLib.h>
#include <Library/DebugLib.h>
#include <Library/PcdLib.h>
#include "ArmLibPrivate.h"
VOID
EFIAPI
ArmSetAuxCrBit (
IN UINT32 Bits
)
{
UINT32 val = ArmReadAuxCr();
val |= Bits;
ArmWriteAuxCr(val);
}
VOID
EFIAPI
ArmUnsetAuxCrBit (
IN UINT32 Bits
)
{
UINT32 val = ArmReadAuxCr();
val &= ~Bits;
ArmWriteAuxCr(val);
}
//
// Helper functions for accessing CPUACTLR
//
VOID
EFIAPI
ArmSetCpuActlrBit (
IN UINTN Bits
)
{
UINTN Value;
Value = ArmReadCpuActlr ();
Value |= Bits;
ArmWriteCpuActlr (Value);
}
VOID
EFIAPI
ArmUnsetCpuActlrBit (
IN UINTN Bits
)
{
UINTN Value;
Value = ArmReadCpuActlr ();
Value &= ~Bits;
ArmWriteCpuActlr (Value);
}
UINTN
EFIAPI
ArmDataCacheLineLength (
VOID
)
{
return 4 << ((ArmCacheInfo () >> 16) & 0xf); // CTR_EL0.DminLine
}
UINTN
EFIAPI
ArmInstructionCacheLineLength (
VOID
)
{
return 4 << (ArmCacheInfo () & 0xf); // CTR_EL0.IminLine
}
UINTN
EFIAPI
ArmCacheWritebackGranule (
VOID
)
{
UINTN CWG;
CWG = (ArmCacheInfo () >> 24) & 0xf; // CTR_EL0.CWG
if (CWG == 0) {
return SIZE_2KB;
}
return 4 << CWG;
}
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