| /* $NoKeywords:$ */ |
| /** |
| * @file |
| * |
| * AMD AGESA CPU Power Status Indicator (PSI) feature support code. |
| * |
| * Contains code that declares the AGESA CPU PSI related APIs |
| * |
| * @xrefitem bom "File Content Label" "Release Content" |
| * @e project: AGESA |
| * @e sub-project: CPU/Feature |
| * @e \$Revision: 63425 $ @e \$Date: 2011-12-22 11:24:10 -0600 (Thu, 22 Dec 2011) $ |
| * |
| */ |
| /* |
| ****************************************************************************** |
| * |
| * Copyright 2008 - 2012 ADVANCED MICRO DEVICES, INC. All Rights Reserved. |
| * |
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| ****************************************************************************** |
| */ |
| |
| /*---------------------------------------------------------------------------------------- |
| * M O D U L E S U S E D |
| *---------------------------------------------------------------------------------------- |
| */ |
| #include "AGESA.h" |
| #include "GeneralServices.h" |
| #include "cpuFamilyTranslation.h" |
| #include "cpuApicUtilities.h" |
| #include "cpuFeatures.h" |
| #include "cpuPsi.h" |
| #include "OptionMultiSocket.h" |
| #include "Filecode.h" |
| CODE_GROUP (G1_PEICC) |
| RDATA_GROUP (G1_PEICC) |
| |
| #define FILECODE PROC_CPU_FEATURE_CPUPSI_FILECODE |
| |
| /*---------------------------------------------------------------------------------------- |
| * D E F I N I T I O N S A N D M A C R O S |
| *---------------------------------------------------------------------------------------- |
| */ |
| |
| /*---------------------------------------------------------------------------------------- |
| * T Y P E D E F S A N D S T R U C T U R E S |
| *---------------------------------------------------------------------------------------- |
| */ |
| |
| /*---------------------------------------------------------------------------------------- |
| * P R O T O T Y P E S O F L O C A L F U N C T I O N S |
| *---------------------------------------------------------------------------------------- |
| */ |
| UINT32 |
| STATIC |
| EnablePsiOnSocket ( |
| IN VOID *EntryPoint, |
| IN AMD_CONFIG_PARAMS *StdHeader, |
| IN AMD_CPU_EARLY_PARAMS *CpuEarlyParams |
| ); |
| |
| /*---------------------------------------------------------------------------------------- |
| * E X P O R T E D F U N C T I O N S |
| *---------------------------------------------------------------------------------------- |
| */ |
| extern CPU_FAMILY_SUPPORT_TABLE PsiFamilyServiceTable; |
| extern OPTION_MULTISOCKET_CONFIGURATION OptionMultiSocketConfiguration; |
| |
| /*---------------------------------------------------------------------------------------*/ |
| /** |
| * Should Power Status Indicator (PSI) be enabled |
| * |
| * @param[in] PlatformConfig Contains the runtime modifiable feature input data. |
| * @param[in] StdHeader Config Handle for library, services. |
| * |
| * @retval TRUE PSI is supported. |
| * @retval FALSE PSI cannot be enabled. |
| * |
| */ |
| BOOLEAN |
| STATIC |
| IsPsiFeatureEnabled ( |
| IN PLATFORM_CONFIGURATION *PlatformConfig, |
| IN AMD_CONFIG_PARAMS *StdHeader |
| ) |
| { |
| UINT32 Socket; |
| BOOLEAN IsEnabled; |
| PSI_FAMILY_SERVICES *PsiFamilyServices; |
| UINT32 VrmType; |
| |
| IsEnabled = FALSE; |
| |
| for (VrmType = 0; VrmType < MaxVrmType; VrmType++) { |
| if (PlatformConfig->VrmProperties[VrmType].LowPowerThreshold != 0) { |
| IsEnabled = TRUE; |
| break; |
| } |
| } |
| |
| if (!IsEnabled) { |
| return FALSE; |
| } |
| |
| for (Socket = 0; Socket < GetPlatformNumberOfSockets (); Socket++) { |
| if (IsProcessorPresent (Socket, StdHeader)) { |
| GetFeatureServicesOfSocket (&PsiFamilyServiceTable, Socket, (CONST VOID **)&PsiFamilyServices, StdHeader); |
| if ((PsiFamilyServices == NULL) || (!PsiFamilyServices->IsPsiSupported (PsiFamilyServices, Socket, PlatformConfig, StdHeader))) { |
| IsEnabled = FALSE; |
| break; |
| } |
| } |
| } |
| return IsEnabled; |
| } |
| |
| |
| /*---------------------------------------------------------------------------------------*/ |
| /** |
| * Enable Power Status Indicator (PSI) |
| * |
| * @param[in] EntryPoint Timepoint designator. |
| * @param[in] PlatformConfig Contains the runtime modifiable feature input data. |
| * @param[in] StdHeader Config Handle for library, services. |
| * |
| * @retval AGESA_SUCCESS Always succeeds. |
| * |
| */ |
| AGESA_STATUS |
| STATIC |
| InitializePsiFeature ( |
| IN UINT64 EntryPoint, |
| IN PLATFORM_CONFIGURATION *PlatformConfig, |
| IN AMD_CONFIG_PARAMS *StdHeader |
| ) |
| { |
| AP_TASK TaskPtr; |
| AGESA_STATUS AgesaStatus; |
| AMD_CPU_EARLY_PARAMS CpuEarlyParams; |
| |
| IDS_HDT_CONSOLE (CPU_TRACE, " PSI mode is being initialized\n"); |
| |
| CpuEarlyParams.PlatformConfig = *PlatformConfig; |
| |
| TaskPtr.FuncAddress.PfApTaskIOC = EnablePsiOnSocket; |
| TaskPtr.DataTransfer.DataSizeInDwords = 2; |
| TaskPtr.DataTransfer.DataPtr = &EntryPoint; |
| TaskPtr.DataTransfer.DataTransferFlags = 0; |
| TaskPtr.ExeFlags = PASS_EARLY_PARAMS | TASK_HAS_OUTPUT; |
| AgesaStatus = OptionMultiSocketConfiguration.BscRunCodeOnAllSystemCore0s (&TaskPtr, StdHeader, &CpuEarlyParams); |
| |
| IDS_HDT_CONSOLE (CPU_TRACE, " PSI mode is enabled\n"); |
| |
| return AgesaStatus; |
| } |
| |
| /*---------------------------------------------------------------------------------------*/ |
| /** |
| * AP task to enable PSI |
| * |
| * @param[in] EntryPoint Timepoint designator. |
| * @param[in] StdHeader Config Handle for library, services. |
| * @param[in] CpuEarlyParams Service parameters. |
| * |
| */ |
| UINT32 |
| STATIC |
| EnablePsiOnSocket ( |
| IN VOID *EntryPoint, |
| IN AMD_CONFIG_PARAMS *StdHeader, |
| IN AMD_CPU_EARLY_PARAMS *CpuEarlyParams |
| ) |
| { |
| AGESA_STATUS CalledStatus; |
| PSI_FAMILY_SERVICES *PsiFamilyServices; |
| |
| CalledStatus = AGESA_UNSUPPORTED; |
| GetFeatureServicesOfCurrentCore (&PsiFamilyServiceTable, (CONST VOID **)&PsiFamilyServices, StdHeader); |
| if (PsiFamilyServices != NULL) { |
| CalledStatus = PsiFamilyServices->EnablePsiOnSocket (PsiFamilyServices, *((UINT64 *) EntryPoint), &CpuEarlyParams->PlatformConfig, StdHeader); |
| } |
| return (UINT32) CalledStatus; |
| } |
| |
| CONST CPU_FEATURE_DESCRIPTOR ROMDATA CpuFeaturePsi = |
| { |
| CpuPsi, |
| (CPU_FEAT_AFTER_POST_MTRR_SYNC | CPU_FEAT_AFTER_RESUME_MTRR_SYNC), |
| IsPsiFeatureEnabled, |
| InitializePsiFeature |
| }; |
