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UefiCpuPkg/CpuCacheInfoLib: Collect cache associative type

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REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3265

Support collecting cache associative type in CpuCacheInfoLib.
This prevents the user from using additional code to obtain the
same information.

Signed-off-by: Jason Lou <yun.lou@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
This commit is contained in:
Lou, Yun
2021-03-15 21:48:53 +08:00
committed by mergify[bot]
parent 2e51b27fed
commit e4ff3773b7
3 changed files with 53 additions and 26 deletions
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15
UefiCpuPkg/Include/Library/CpuCacheInfoLib.h
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@@ -1,7 +1,7 @@
/** @file
Header file for CPU Cache info Library.
Copyright (c) 2020, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2020 - 2021, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
@@ -33,7 +33,18 @@ typedef struct {
// Ways of associativity.
// Value = CPUID.04h:EBX[31:22]
//
UINT16 CacheWays;
UINT16 CacheWays : 10;
//
// Fully associative cache.
// Value = CPUID.04h:EAX[09]
//
UINT16 FullyAssociativeCache : 1;
//
// Direct mapped cache.
// Value = CPUID.04h:EDX[02]
//
UINT16 DirectMappedCache : 1;
UINT16 Reserved : 4;
//
// Size of single cache that this package's this type of logical processor corresponds to.
// Value = (CPUID.04h:EBX[31:22] + 1) * (CPUID.04h:EBX[21:12] + 1) *