mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-11-29 12:35:53 +01:00
93 lines
2.3 KiB
C
93 lines
2.3 KiB
C
|
/** @file
|
||
|
|
Functions for AARCH64 processor information
|
||
|
|
|
||
|
|
Copyright (c) 2021, NUVIA Inc. All rights reserved.<BR>
|
||
|
|
|
||
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
||
|
|
|
||
|
|
**/
|
||
|
|
|
||
|
|
#include <Uefi.h>
|
||
|
|
#include <IndustryStandard/ArmCache.h>
|
||
|
|
#include <Library/ArmLib.h>
|
||
|
|
|
||
|
|
#include "SmbiosProcessor.h"
|
||
|
|
|
||
|
|
/** Gets the size of the specified cache.
|
||
|
|
|
||
|
|
@param CacheLevel The cache level (L1, L2 etc.).
|
||
|
|
@param DataCache Whether the cache is a dedicated data cache.
|
||
|
|
@param UnifiedCache Whether the cache is a unified cache.
|
||
|
|
|
||
|
|
@return The cache size.
|
||
|
|
**/
|
||
|
|
UINT64
|
||
|
|
SmbiosProcessorGetCacheSize (
|
||
|
|
IN UINT8 CacheLevel,
|
||
|
|
IN BOOLEAN DataCache,
|
||
|
|
IN BOOLEAN UnifiedCache
|
||
|
|
)
|
||
|
|
{
|
||
|
|
CCSIDR_DATA Ccsidr;
|
||
|
|
CSSELR_DATA Csselr;
|
||
|
|
BOOLEAN CcidxSupported;
|
||
|
|
UINT64 CacheSize;
|
||
|
|
|
||
|
|
Csselr.Data = 0;
|
||
|
|
Csselr.Bits.Level = CacheLevel - 1;
|
||
|
|
Csselr.Bits.InD = (!DataCache && !UnifiedCache);
|
||
|
|
|
||
|
|
Ccsidr.Data = ReadCCSIDR (Csselr.Data);
|
||
|
|
|
||
|
|
CcidxSupported = ArmHasCcidx ();
|
||
|
|
|
||
|
|
if (CcidxSupported) {
|
||
|
|
CacheSize = (1 << (Ccsidr.BitsCcidxAA64.LineSize + 4)) *
|
||
|
|
(Ccsidr.BitsCcidxAA64.Associativity + 1) *
|
||
|
|
(Ccsidr.BitsCcidxAA64.NumSets + 1);
|
||
|
|
} else {
|
||
|
|
CacheSize = (1 << (Ccsidr.BitsNonCcidx.LineSize + 4)) *
|
||
|
|
(Ccsidr.BitsNonCcidx.Associativity + 1) *
|
||
|
|
(Ccsidr.BitsNonCcidx.NumSets + 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
return CacheSize;
|
||
|
|
}
|
||
|
|
|
||
|
|
/** Gets the associativity of the specified cache.
|
||
|
|
|
||
|
|
@param CacheLevel The cache level (L1, L2 etc.).
|
||
|
|
@param DataCache Whether the cache is a dedicated data cache.
|
||
|
|
@param UnifiedCache Whether the cache is a unified cache.
|
||
|
|
|
||
|
|
@return The cache associativity.
|
||
|
|
**/
|
||
|
|
UINT32
|
||
|
|
SmbiosProcessorGetCacheAssociativity (
|
||
|
|
IN UINT8 CacheLevel,
|
||
|
|
IN BOOLEAN DataCache,
|
||
|
|
IN BOOLEAN UnifiedCache
|
||
|
|
)
|
||
|
|
{
|
||
|
|
CCSIDR_DATA Ccsidr;
|
||
|
|
CSSELR_DATA Csselr;
|
||
|
|
BOOLEAN CcidxSupported;
|
||
|
|
UINT32 Associativity;
|
||
|
|
|
||
|
|
Csselr.Data = 0;
|
||
|
|
Csselr.Bits.Level = CacheLevel - 1;
|
||
|
|
Csselr.Bits.InD = (!DataCache && !UnifiedCache);
|
||
|
|
|
||
|
|
Ccsidr.Data = ReadCCSIDR (Csselr.Data);
|
||
|
|
|
||
|
|
CcidxSupported = ArmHasCcidx ();
|
||
|
|
|
||
|
|
if (CcidxSupported) {
|
||
|
|
Associativity = Ccsidr.BitsCcidxAA64.Associativity + 1;
|
||
|
|
} else {
|
||
|
|
Associativity = Ccsidr.BitsNonCcidx.Associativity + 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
return Associativity;
|
||
|
|
}
|