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/** @file
Provides cache info for each package, core type, cache level and cache type.
Copyright (c) 2020 Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <PiDxe.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/CpuCacheInfoLib.h>
#include <InternalCpuCacheInfoLib.h>
/**
Get EFI_MP_SERVICES_PROTOCOL pointer.
@param[out] MpServices A pointer to the buffer where EFI_MP_SERVICES_PROTOCOL is stored
@retval EFI_SUCCESS EFI_MP_SERVICES_PROTOCOL interface is returned
@retval EFI_NOT_FOUND EFI_MP_SERVICES_PROTOCOL interface is not found
**/
EFI_STATUS
CpuCacheInfoGetMpServices (
OUT MP_SERVICES *MpServices
)
{
EFI_STATUS Status;
Status = gBS->LocateProtocol (&gEfiMpServiceProtocolGuid, NULL, (VOID **)&MpServices->Protocol);
ASSERT_EFI_ERROR (Status);
return Status;
}
/**
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
)
{
EFI_STATUS Status;
Status = MpServices.Protocol->StartupAllAPs (MpServices.Protocol, Procedure, FALSE, NULL, 0, ProcedureArgument, NULL);
if (Status == EFI_NOT_STARTED) {
//
// EFI_NOT_STARTED is returned when there is no enabled AP.
// Treat this case as EFI_SUCCESS.
//
Status = EFI_SUCCESS;
}
ASSERT_EFI_ERROR (Status);
Procedure (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
)
{
EFI_STATUS Status;
Status = MpServices.Protocol->GetProcessorInfo (MpServices.Protocol, ProcessorNum, ProcessorInfo);
ASSERT_EFI_ERROR (Status);
}
/**
Get the logical processor number.
@param[in] MpServices MP_SERVICES structure.
@retval Return the logical processor number.
**/
UINT32
CpuCacheInfoWhoAmI (
IN MP_SERVICES MpServices
)
{
EFI_STATUS Status;
UINTN ProcessorNum;
Status = MpServices.Protocol->WhoAmI (MpServices.Protocol, &ProcessorNum);
ASSERT_EFI_ERROR (Status);
return (UINT32)ProcessorNum;
}
/**
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
)
{
EFI_STATUS Status;
UINTN NumberOfProcessor;
UINTN NumberOfEnabledProcessor;
Status = MpServices.Protocol->GetNumberOfProcessors (MpServices.Protocol, &NumberOfProcessor, &NumberOfEnabledProcessor);
ASSERT_EFI_ERROR (Status);
return (UINT32)NumberOfProcessor;
}
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