| /* $NoKeywords:$ */ |
| /** |
| * @file |
| * |
| * AMD AGESA CPU IO Cstate function declarations. |
| * |
| * Contains code that declares the AGESA CPU IO Cstate 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) $ |
| */ |
| /* |
| ****************************************************************************** |
| * |
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| ****************************************************************************** |
| */ |
| |
| /*---------------------------------------------------------------------------------------- |
| * M O D U L E S U S E D |
| *---------------------------------------------------------------------------------------- |
| */ |
| |
| #include "AGESA.h" |
| #include "amdlib.h" |
| #include "cpuFeatures.h" |
| #include "cpuIoCstate.h" |
| #include "cpuServices.h" |
| #include "cpuFamilyTranslation.h" |
| #include "cpuApicUtilities.h" |
| #include "OptionMultiSocket.h" |
| #include "Filecode.h" |
| CODE_GROUP (G1_PEICC) |
| RDATA_GROUP (G1_PEICC) |
| |
| #define FILECODE PROC_CPU_FEATURE_CPUIOCSTATE_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 |
| *---------------------------------------------------------------------------------------- |
| */ |
| |
| VOID |
| STATIC |
| EnableIoCstateOnSocket ( |
| 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 IoCstateFamilyServiceTable; |
| extern OPTION_MULTISOCKET_CONFIGURATION OptionMultiSocketConfiguration; |
| |
| /*---------------------------------------------------------------------------------------*/ |
| /** |
| * Should IO Cstate be enabled |
| * If all processors support IO Cstate, return TRUE. Otherwise, return FALSE |
| * |
| * @param[in] PlatformConfig Contains the runtime modifiable feature input data. |
| * @param[in] StdHeader Config Handle for library, services. |
| * |
| * @retval TRUE IO Cstate is supported. |
| * @retval FALSE IO Cstate cannot be enabled. |
| * |
| */ |
| BOOLEAN |
| STATIC |
| IsIoCstateFeatureSupported ( |
| IN PLATFORM_CONFIGURATION *PlatformConfig, |
| IN AMD_CONFIG_PARAMS *StdHeader |
| ) |
| { |
| UINT32 Socket; |
| BOOLEAN IsSupported; |
| IO_CSTATE_FAMILY_SERVICES *IoCstateServices; |
| |
| IsSupported = FALSE; |
| if ((PlatformConfig->CStateIoBaseAddress != 0) && (PlatformConfig->CStateIoBaseAddress <= 0xFFF8)) { |
| for (Socket = 0; Socket < GetPlatformNumberOfSockets (); Socket++) { |
| if (IsProcessorPresent (Socket, StdHeader)) { |
| GetFeatureServicesOfSocket (&IoCstateFamilyServiceTable, Socket, (CONST VOID **)&IoCstateServices, StdHeader); |
| if (IoCstateServices != NULL) { |
| if (IoCstateServices->IsIoCstateSupported (IoCstateServices, Socket, StdHeader)) { |
| IsSupported = TRUE; |
| } else { |
| // Stop checking remaining socket(s) once we find one that does not support IO Cstates |
| IsSupported = FALSE; |
| break; |
| } |
| } else { |
| // Exit the for loop if we found a socket that does not have the IO Cstates feature installed |
| IsSupported = FALSE; |
| break; |
| } |
| } |
| } |
| } |
| return IsSupported; |
| } |
| |
| /*---------------------------------------------------------------------------------------*/ |
| /** |
| * Enable IO Cstate feature |
| * |
| * @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 |
| InitializeIoCstateFeature ( |
| IN UINT64 EntryPoint, |
| IN PLATFORM_CONFIGURATION *PlatformConfig, |
| IN AMD_CONFIG_PARAMS *StdHeader |
| ) |
| { |
| AP_TASK TaskPtr; |
| AMD_CPU_EARLY_PARAMS CpuEarlyParams; |
| |
| IDS_HDT_CONSOLE (CPU_TRACE, " IO C-state is enabled\n"); |
| |
| CpuEarlyParams.PlatformConfig = *PlatformConfig; |
| |
| TaskPtr.FuncAddress.PfApTaskIC = EnableIoCstateOnSocket; |
| TaskPtr.DataTransfer.DataSizeInDwords = 2; |
| TaskPtr.DataTransfer.DataPtr = &EntryPoint; |
| TaskPtr.DataTransfer.DataTransferFlags = 0; |
| TaskPtr.ExeFlags = PASS_EARLY_PARAMS; |
| OptionMultiSocketConfiguration.BscRunCodeOnAllSystemCore0s (&TaskPtr, StdHeader, &CpuEarlyParams); |
| |
| return AGESA_SUCCESS; |
| } |
| |
| /*---------------------------------------------------------------------------------------*/ |
| /** |
| * 'Local' core 0 task to enable IO Cstate on it's socket. |
| * |
| * @param[in] EntryPoint Timepoint designator. |
| * @param[in] StdHeader Config Handle for library, services. |
| * @param[in] CpuEarlyParams Service parameters. |
| * |
| */ |
| VOID |
| STATIC |
| EnableIoCstateOnSocket ( |
| IN VOID *EntryPoint, |
| IN AMD_CONFIG_PARAMS *StdHeader, |
| IN AMD_CPU_EARLY_PARAMS *CpuEarlyParams |
| ) |
| { |
| IO_CSTATE_FAMILY_SERVICES *FamilyServices; |
| |
| GetFeatureServicesOfCurrentCore (&IoCstateFamilyServiceTable, (CONST VOID **)&FamilyServices, StdHeader); |
| FamilyServices->InitializeIoCstate (FamilyServices, |
| *((UINT64 *) EntryPoint), |
| &CpuEarlyParams->PlatformConfig, |
| StdHeader); |
| } |
| |
| CONST CPU_FEATURE_DESCRIPTOR ROMDATA CpuFeatureIoCstate = |
| { |
| IoCstate, |
| (CPU_FEAT_AFTER_PM_INIT), |
| IsIoCstateFeatureSupported, |
| InitializeIoCstateFeature |
| }; |
