| /* $NoKeywords:$ */ |
| /** |
| * @file |
| * |
| * AMD AGESA CPU create low power P-state for PROCHOT_L throttling support code. |
| * |
| * Contains code that declares the AGESA CPU low power P-state related APIs |
| * |
| * @xrefitem bom "File Content Label" "Release Content" |
| * @e project: AGESA |
| * @e sub-project: CPU/Feature |
| * @e \$Revision: 49029 $ @e \$Date: 2011-03-16 09:55:06 +0800 (Wed, 16 Mar 2011) $ |
| * |
| */ |
| /* |
| ****************************************************************************** |
| * |
| * Copyright (c) 2011, Advanced Micro Devices, Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * * Neither the name of Advanced Micro Devices, Inc. nor the names of |
| * its contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL ADVANCED MICRO DEVICES, INC. BE LIABLE FOR ANY |
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| ****************************************************************************** |
| */ |
| |
| /*---------------------------------------------------------------------------------------- |
| * M O D U L E S U S E D |
| *---------------------------------------------------------------------------------------- |
| */ |
| #include "AGESA.h" |
| #include "GeneralServices.h" |
| #include "cpuFamilyTranslation.h" |
| #include "cpuApicUtilities.h" |
| #include "OptionMultiSocket.h" |
| #include "cpuRegisters.h" |
| #include "cpuApicUtilities.h" |
| #include "cpuFeatures.h" |
| #include "cpuLowPwrPstate.h" |
| #include "Filecode.h" |
| CODE_GROUP (G1_PEICC) |
| RDATA_GROUP (G1_PEICC) |
| |
| #define FILECODE PROC_CPU_FEATURE_CPULOWPWRPSTATE_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 |
| EnableLowPwrPstateOnSocket ( |
| IN VOID *PlatformConfig, |
| IN AMD_CONFIG_PARAMS *StdHeader |
| ); |
| |
| /*---------------------------------------------------------------------------------------- |
| * E X P O R T E D F U N C T I O N S |
| *---------------------------------------------------------------------------------------- |
| */ |
| extern CPU_FAMILY_SUPPORT_TABLE LowPwrPstateFamilyServiceTable; |
| //extern OPTION_MULTISOCKET_CONFIGURATION OptionMultiSocketConfiguration; |
| |
| /*---------------------------------------------------------------------------------------*/ |
| /** |
| * Should Low Power P-state be enabled |
| * If all processors support Low Power P-state, reture TRUE, otherwise reture FALSE |
| * |
| * @param[in] PlatformConfig Contains the runtime modifiable feature input data. |
| * @param[in] StdHeader Config Handle for library, services. |
| * |
| * @retval TRUE Low Power P-state is supported. |
| * @retval FALSE Low Power P-state cannot be enabled. |
| * |
| */ |
| BOOLEAN |
| STATIC |
| IsLowPwrPstateFeatureSupported ( |
| IN PLATFORM_CONFIGURATION *PlatformConfig, |
| IN AMD_CONFIG_PARAMS *StdHeader |
| ) |
| { |
| UINT32 Socket; |
| BOOLEAN IsSupported; |
| LOW_PWR_PSTATE_FAMILY_SERVICES *FamilyServices; |
| |
| IsSupported = FALSE; |
| for (Socket = 0; Socket < GetPlatformNumberOfSockets (); Socket++) { |
| if (IsProcessorPresent (Socket, StdHeader)) { |
| GetFeatureServicesOfSocket (&LowPwrPstateFamilyServiceTable, Socket, (const VOID **)&FamilyServices, StdHeader); |
| if (FamilyServices != NULL) { |
| if (FamilyServices->IsLowPwrPstateSupported (FamilyServices, PlatformConfig, Socket, StdHeader)) { |
| IsSupported = TRUE; |
| } else { |
| IsSupported = FALSE; |
| break; |
| } |
| } else { |
| IsSupported = FALSE; |
| break; |
| } |
| } |
| } |
| IDS_OPTION_HOOK (IDS_LOW_POWER_PSTATE, &IsSupported, StdHeader); |
| return IsSupported; |
| } |
| |
| /*---------------------------------------------------------------------------------------*/ |
| /** |
| * Enable low power P-state |
| * |
| * @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 |
| InitializeLowPwrPstateFeature ( |
| IN UINT64 EntryPoint, |
| IN PLATFORM_CONFIGURATION *PlatformConfig, |
| IN AMD_CONFIG_PARAMS *StdHeader |
| ) |
| { |
| UINT32 BscSocket; |
| UINT32 Ignored; |
| UINT32 BscCoreNum; |
| UINT32 Core; |
| UINT32 Socket; |
| UINT32 NumberOfSockets; |
| UINT32 NumberOfCores; |
| AP_TASK TaskPtr; |
| AGESA_STATUS IgnoredSts; |
| |
| IDS_HDT_CONSOLE (CPU_TRACE, " Low pwr P-state is enabled\n"); |
| |
| IdentifyCore (StdHeader, &BscSocket, &Ignored, &BscCoreNum, &IgnoredSts); |
| NumberOfSockets = GetPlatformNumberOfSockets (); |
| |
| TaskPtr.FuncAddress.PfApTaskI = EnableLowPwrPstateOnSocket; |
| TaskPtr.DataTransfer.DataSizeInDwords = 2; |
| TaskPtr.DataTransfer.DataPtr = PlatformConfig; |
| TaskPtr.DataTransfer.DataTransferFlags = 0; |
| TaskPtr.ExeFlags = WAIT_FOR_CORE; |
| |
| for (Socket = 0; Socket < NumberOfSockets; Socket++) { |
| if (GetActiveCoresInGivenSocket (Socket, &NumberOfCores, StdHeader)) { |
| for (Core = 0; Core < NumberOfCores; Core++) { |
| if ((Socket != BscSocket) || (Core != BscCoreNum)) { |
| ApUtilRunCodeOnSocketCore ((UINT8) Socket, (UINT8) Core, &TaskPtr, StdHeader); |
| } |
| } |
| } |
| } |
| |
| EnableLowPwrPstateOnSocket (PlatformConfig, StdHeader); |
| return AGESA_SUCCESS; |
| } |
| |
| /*---------------------------------------------------------------------------------------*/ |
| /** |
| * 'Local' core 0 task to enable low power P-state |
| * |
| * @param[in] PlatformConfig Contains the runtime modifiable feature input data. |
| * @param[in] StdHeader Config Handle for library, services. |
| * |
| */ |
| VOID |
| STATIC |
| EnableLowPwrPstateOnSocket ( |
| IN VOID *PlatformConfig, |
| IN AMD_CONFIG_PARAMS *StdHeader |
| ) |
| { |
| LOW_PWR_PSTATE_FAMILY_SERVICES *FamilyServices; |
| |
| GetFeatureServicesOfCurrentCore (&LowPwrPstateFamilyServiceTable, (const VOID **)&FamilyServices, StdHeader); |
| FamilyServices->EnableLowPwrPstate (FamilyServices, |
| PlatformConfig, |
| StdHeader); |
| } |
| |
| |
| CONST CPU_FEATURE_DESCRIPTOR ROMDATA CpuFeatureLowPwrPstate = |
| { |
| LowPwrPstate, |
| CPU_FEAT_BEFORE_RELINQUISH_AP, |
| IsLowPwrPstateFeatureSupported, |
| InitializeLowPwrPstateFeature |
| }; |