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/** @file
This file is SampleCode of the library for Intel CPU PEI Policy Update initialization.
Copyright (c) 2009 - 2017, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php.
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include <PeiCpuPolicyUpdate.h>
#include <Library/CpuPolicyLib.h>
#include <Library/SteppingLib.h>
#include <Library/HobLib.h>
#include <Guid/PlatformInfo.h>
#include <Platform.h>
/**
This function performs CPU PEI Policy initialization.
@param[in] SiCpuPolicyPpi The Cpu Policy PPI instance
@param[in] SystemConfiguration The pointer to get System Setup
@retval EFI_SUCCESS The PPI is installed and initialized.
@retval EFI ERRORS The PPI is not successfully installed.
@retval EFI_OUT_OF_RESOURCES Do not have enough resources to initialize the driver.
**/
EFI_STATUS
EFIAPI
UpdatePeiCpuPolicy (
IN OUT SI_CPU_POLICY_PPI *SiCpuPolicyPpi,
IN SYSTEM_CONFIGURATION *SystemConfiguration
)
{
EFI_STATUS Status;
CPU_CONFIG *CpuConfig;
POWER_MGMT_CONFIG *PowerMgmtConfig;
EFI_PEI_HOB_POINTERS Hob;
Status = GetConfigBlock ((CONFIG_BLOCK_TABLE_HEADER *) SiCpuPolicyPpi, &gCpuConfigGuid, (VOID *) &CpuConfig);
ASSERT_EFI_ERROR (Status);
DEBUG ((DEBUG_INFO, " Get config block for CpuConfig \n"));
Status = GetConfigBlock ((CONFIG_BLOCK_TABLE_HEADER *) SiCpuPolicyPpi, &gPowerMgmtConfigGuid, (VOID *) &PowerMgmtConfig);
ASSERT_EFI_ERROR (Status);
DEBUG ((DEBUG_INFO, " Get config block for PowerMgmtConfig \n"));
Hob.Raw = GetFirstGuidHob (&gEfiPlatformInfoGuid);
ASSERT (Hob.Raw != NULL);
CpuConfig->ActiveProcessorCores = SystemConfiguration->ActiveProcessorCores;
CpuConfig->DisableCore1 = SystemConfiguration->Core1;
CpuConfig->DisableCore2 = SystemConfiguration->Core2;
CpuConfig->DisableCore3 = SystemConfiguration->Core3;
CpuConfig->VmxEnable = SystemConfiguration->ProcessorVmxEnable;
CpuConfig->ProcTraceMemSize = SystemConfiguration->ProcTraceMemSize;
CpuConfig->ProcTraceEnable = SystemConfiguration->ProcTraceEnable;
CpuConfig->EnableDts = SystemConfiguration->EnableDigitalThermalSensor;
PowerMgmtConfig->Eist = SystemConfiguration->EnableGv;
PowerMgmtConfig->BootPState = SystemConfiguration->BootPState;
PowerMgmtConfig->Cx = SystemConfiguration->EnableCx;
PowerMgmtConfig->C1e = SystemConfiguration->EnableCxe;
PowerMgmtConfig->BiProcHot = SystemConfiguration->EnableProcHot;
PowerMgmtConfig->PkgCStateLimit = (MAX_PKG_C_STATE) PcdGet8 (PcdMaxPkgCState);
PowerMgmtConfig->AutoThermalReporting = SystemConfiguration->AutoThermalReporting;
if (BxtStepping () >= BxtPB1) {
PowerMgmtConfig->PmgCstCfgCtrIoMwaitRedirection = SOC_DEVICE_ENABLE;
} else {
PowerMgmtConfig->PmgCstCfgCtrIoMwaitRedirection = SOC_DEVICE_DISABLE;
}
//
//If Auto is selected, disable Monitor Mwait for B1 and enable for other stepping
//
if (SystemConfiguration->MonitorMwaitEnable == 2) {
if (BxtStepping () >= BxtPB1) {
CpuConfig->MonitorMwaitEnable = SOC_DEVICE_DISABLE;
} else {
CpuConfig->MonitorMwaitEnable = SOC_DEVICE_ENABLE;
}
} else {
CpuConfig->MonitorMwaitEnable = SystemConfiguration->MonitorMwaitEnable;
}
if (SystemConfiguration->EnableCx) {
//
// Clear C1 & C3 Auto demotion policy
//
PowerMgmtConfig->C1AutoDemotion = SOC_DEVICE_DISABLE;
PowerMgmtConfig->C3AutoDemotion = SOC_DEVICE_DISABLE;
switch (SystemConfiguration->CStateAutoDemotion) {
case 0:
//
// Disable C1 and C3 Auto-demotion
//
break;
case 1:
//
// Enable C3/C6/C7 Auto-demotion to C1
//
PowerMgmtConfig->C1AutoDemotion = SOC_DEVICE_ENABLE;
break;
case 2:
//
// Enable C6/C7 Auto-demotion to C3
//
PowerMgmtConfig->C3AutoDemotion = SOC_DEVICE_ENABLE;
break;
default:
case 3:
//
// Enable C6/C7 Auto-demotion to C1 and C3
//
PowerMgmtConfig->C1AutoDemotion = SOC_DEVICE_ENABLE;
PowerMgmtConfig->C3AutoDemotion = SOC_DEVICE_ENABLE;
break;
}
//
// Configure Un-demotion.
//
PowerMgmtConfig->C1UnDemotion = SOC_DEVICE_DISABLE;
PowerMgmtConfig->C3UnDemotion = SOC_DEVICE_DISABLE;
switch (SystemConfiguration->CStateUnDemotion) {
case 0:
//
// Disable C1 and C3 Un-demotion
//
break;
case 1:
//
// Enable C1 Un-demotion
//
PowerMgmtConfig->C1UnDemotion = SOC_DEVICE_ENABLE;
break;
case 2:
//
// Enable C3 Un-demotion
//
PowerMgmtConfig->C3UnDemotion = SOC_DEVICE_ENABLE;
break;
case 3:
//
// Enable C1 and C3 Un-demotion
//
PowerMgmtConfig->C1UnDemotion = SOC_DEVICE_ENABLE;
PowerMgmtConfig->C3UnDemotion = SOC_DEVICE_ENABLE;
break;
default:
break;
}
switch (SystemConfiguration->MaxCoreCState) {
case 0:
PowerMgmtConfig->UnlimitedCstate = SOC_DEVICE_ENABLE;
break;
case 1:
PowerMgmtConfig->EnableC1 = SOC_DEVICE_ENABLE;
break;
case 2:
PowerMgmtConfig->EnableC3 = SOC_DEVICE_ENABLE;
break;
case 3:
PowerMgmtConfig->EnableC6 = SOC_DEVICE_ENABLE;
break;
case 4:
PowerMgmtConfig->EnableC7 = SOC_DEVICE_ENABLE;
break;
case 5:
PowerMgmtConfig->EnableC8 = SOC_DEVICE_ENABLE;
break;
case 6:
PowerMgmtConfig->EnableC9 = SOC_DEVICE_ENABLE;
break;
case 7:
PowerMgmtConfig->EnableC10 = SOC_DEVICE_ENABLE;
break;
case 8:
PowerMgmtConfig->EnableCCx = SOC_DEVICE_ENABLE;
break;
default:
break;
}
//
// Pkg C-state Demotion/Un Demotion
//
PowerMgmtConfig->PkgCStateDemotion = SystemConfiguration->PkgCStateDemotion;
PowerMgmtConfig->PkgCStateUnDemotion = SystemConfiguration->PkgCStateUnDemotion;
}
if (BxtStepping() == BxtA0) {
PowerMgmtConfig->TurboMode = SOC_DEVICE_DISABLE;
} else {
PowerMgmtConfig->TurboMode = SystemConfiguration->TurboModeEnable;
}
PowerMgmtConfig->PowerLimit1Enable = SystemConfiguration->PowerLimit1Enable;
PowerMgmtConfig->PowerLimit1ClampEnable = SystemConfiguration->PowerLimit1Clamp;
PowerMgmtConfig->CustomPowerLimit1Time = SystemConfiguration->PowerLimit1Time;
PowerMgmtConfig->CustomPowerLimit1 = SystemConfiguration->PowerLimit1;
return EFI_SUCCESS;
}
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