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- /** @file
- Internal header file for CPU Cache info Library.
- Copyright (c) 2020 - 2021, Intel Corporation. All rights reserved.<BR>
- SPDX-License-Identifier: BSD-2-Clause-Patent
- **/
- #ifndef _INTERNAL_CPU_CACHE_INFO_LIB_H_
- #define _INTERNAL_CPU_CACHE_INFO_LIB_H_
- #include <PiPei.h>
- #include <Register/Cpuid.h>
- #include <Ppi/MpServices2.h>
- #include <Protocol/MpService.h>
- #include <Library/BaseLib.h>
- #include <Library/DebugLib.h>
- #include <Library/BaseMemoryLib.h>
- #include <Library/MemoryAllocationLib.h>
- #include <Library/CpuCacheInfoLib.h>
- typedef union {
- struct {
- //
- // Type of the cache that this package's this type of logical processor corresponds to.
- // Value = CPUID.04h:EAX[04:00]
- //
- UINT32 CacheType : 5;
- //
- // Level of the cache that this package's this type of logical processor corresponds to.
- // Value = CPUID.04h:EAX[07:05]
- //
- UINT32 CacheLevel : 3;
- //
- // Core type of logical processor.
- // Value = CPUID.1Ah:EAX[31:24]
- //
- UINT32 CoreType : 8;
- UINT32 Reserved : 16;
- //
- // Package number.
- //
- UINT32 Package;
- } Bits;
- UINT64 Uint64;
- } CPU_CACHE_INFO_COMPARATOR;
- typedef struct {
- //
- // Package ID, the information comes from
- // EFI_CPU_PHYSICAL_LOCATION.Package
- //
- UINT32 Package;
- //
- // APIC ID, the information comes from
- // EFI_PROCESSOR_INFORMATION.ProcessorId
- //
- UINT32 ApicId;
- //
- // Core type of logical processor.
- // Value = CPUID.1Ah:EAX[31:24]
- //
- UINT8 CoreType;
- } CPUID_PROCESSOR_INFO;
- typedef struct {
- //
- // Level of the cache.
- // Value = CPUID.04h:EAX[07:05]
- //
- UINT8 CacheLevel : 3;
- //
- // Type of the cache.
- // Value = CPUID.04h:EAX[04:00]
- //
- UINT8 CacheType : 5;
- //
- // Ways of associativity.
- // Value = CPUID.04h:EBX[31:22]
- //
- 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;
- //
- // Cache share bits.
- // Value = CPUID.04h:EAX[25:14]
- //
- UINT16 CacheShareBits;
- //
- // Size of single cache.
- // Value = (CPUID.04h:EBX[31:22] + 1) * (CPUID.04h:EBX[21:12] + 1) *
- // (CPUID.04h:EBX[11:00] + 1) * (CPUID.04h:ECX[31:00] + 1)
- //
- UINT32 CacheSizeinKB;
- } CPUID_CACHE_DATA;
- typedef union {
- EDKII_PEI_MP_SERVICES2_PPI *Ppi;
- EFI_MP_SERVICES_PROTOCOL *Protocol;
- } MP_SERVICES;
- typedef struct {
- MP_SERVICES MpServices;
- CPUID_PROCESSOR_INFO *ProcessorInfo;
- CPUID_CACHE_DATA *CacheData;
- } COLLECT_CPUID_CACHE_DATA_CONTEXT;
- /*
- Defines the maximum count of Deterministic Cache Parameters Leaf of all APs and BSP.
- To save boot time, skip starting up all APs to calculate each AP's count of Deterministic
- Cache Parameters Leaf, so use a definition instead.
- Anyway, definition value will be checked in CpuCacheInfoCollectCoreAndCacheData function.
- */
- #define MAX_NUM_OF_CACHE_PARAMS_LEAF 6
- /*
- Defines the maximum count of packages.
- */
- #define MAX_NUM_OF_PACKAGE 100
- /**
- Get EDKII_PEI_MP_SERVICES2_PPI or EFI_MP_SERVICES_PROTOCOL pointer.
- @param[out] MpServices A pointer to the buffer where EDKII_PEI_MP_SERVICES2_PPI or
- EFI_MP_SERVICES_PROTOCOL is stored
- @retval EFI_SUCCESS EDKII_PEI_MP_SERVICES2_PPI or EFI_MP_SERVICES_PROTOCOL interface is returned
- @retval EFI_NOT_FOUND EDKII_PEI_MP_SERVICES2_PPI or EFI_MP_SERVICES_PROTOCOL interface is not found
- **/
- EFI_STATUS
- CpuCacheInfoGetMpServices (
- OUT MP_SERVICES *MpServices
- );
- /**
- Activate all of the logical processors.
- @param[in] MpServices MP_SERVICES structure.
- @param[in] Procedure A pointer to the function to be run on enabled logical processors.
- @param[in] ProcedureArgument The parameter passed into Procedure for all enabled logical processors.
- **/
- VOID
- CpuCacheInfoStartupAllCPUs (
- IN MP_SERVICES MpServices,
- IN EFI_AP_PROCEDURE Procedure,
- IN VOID *ProcedureArgument
- );
- /**
- Get detailed information of the requested logical processor.
- @param[in] MpServices MP_SERVICES structure.
- @param[in] ProcessorNum The requested logical processor number.
- @param[out] ProcessorInfo A pointer to the buffer where the processor information is stored
- **/
- VOID
- CpuCacheInfoGetProcessorInfo (
- IN MP_SERVICES MpServices,
- IN UINTN ProcessorNum,
- OUT EFI_PROCESSOR_INFORMATION *ProcessorInfo
- );
- /**
- Get the logical processor number.
- @param[in] MpServices MP_SERVICES structure.
- @retval Return the logical processor number.
- **/
- UINT32
- CpuCacheInfoWhoAmI (
- IN MP_SERVICES MpServices
- );
- /**
- Get the total number of logical processors in the platform.
- @param[in] MpServices MP_SERVICES structure.
- @retval Return the total number of logical processors.
- **/
- UINT32
- CpuCacheInfoGetNumberOfProcessors (
- IN MP_SERVICES MpServices
- );
- #endif
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