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/** @file
Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
Module Name:
IdccInfo.c
Abstract:
Platform information used by IDCC.
Revision History
--*/
#include "PlatformDxe.h"
#include <Guid/IdccData.h>
extern EFI_GUID mPlatformDriverGuid;
EFI_STATUS
WriteIdccInfo (
)
{
EFI_STATUS Status;
EFI_DATA_HUB_PROTOCOL *DataHub;
UINT8 Ratio;
EFI_IDCC_PROCESSOR_RATIO ProcRatio;
//
// Locate the data hub protocol
//
Status = gBS->LocateProtocol (
&gEfiDataHubProtocolGuid,
NULL,
(VOID **) &DataHub
);
//
// Find processor actual ratio
//
Ratio = 15; //Temporary - some dummy value.
//
// Fill in IDCC Type 5 structure
//
ProcRatio.IdccHeader.Type = EFI_IDCC_PROC_RATIO_TYPE;
ProcRatio.IdccHeader.RecordLength = sizeof(EFI_IDCC_PROCESSOR_RATIO);
ProcRatio.ProcessorRatio = Ratio;
//
// Write data to the data hub
//
Status = DataHub->LogData (
DataHub,
&gIdccDataHubGuid,
&mPlatformDriverGuid,
EFI_DATA_RECORD_CLASS_DATA,
&ProcRatio,
sizeof(EFI_IDCC_PROCESSOR_RATIO)
);
return Status;
}
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