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Diffstat (limited to 'src/vendorcode/amd/agesa/f15tn/Proc/CPU/Feature/cpuIoCstate.c')
| -rw-r--r-- | src/vendorcode/amd/agesa/f15tn/Proc/CPU/Feature/cpuIoCstate.c | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f15tn/Proc/CPU/Feature/cpuIoCstate.c b/src/vendorcode/amd/agesa/f15tn/Proc/CPU/Feature/cpuIoCstate.c new file mode 100644 index 0000000000..ea546041fc --- /dev/null +++ b/src/vendorcode/amd/agesa/f15tn/Proc/CPU/Feature/cpuIoCstate.c @@ -0,0 +1,234 @@ +/* $NoKeywords:$ */ +/** + * @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) $ + */ +/* + ****************************************************************************** + * + * Copyright 2008 - 2012 ADVANCED MICRO DEVICES, INC. All Rights Reserved. + * + * AMD is granting you permission to use this software (the Materials) + * pursuant to the terms and conditions of your Software License Agreement + * with AMD. This header does *NOT* give you permission to use the Materials + * or any rights under AMD's intellectual property. Your use of any portion + * of these Materials shall constitute your acceptance of those terms and + * conditions. 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BECAUSE SOME JURISDICTIONS PROHIBIT THE + * EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES, + * THE ABOVE LIMITATION MAY NOT APPLY TO YOU. + * + * AMD does not assume any responsibility for any errors which may appear in + * the Materials or any other related information provided to you by AMD, or + * result from use of the Materials or any related information. + * + * You agree that you will not reverse engineer or decompile the Materials. + * + * NO SUPPORT OBLIGATION: AMD is not obligated to furnish, support, or make any + * further information, software, technical information, know-how, or show-how + * available to you. Additionally, AMD retains the right to modify the + * Materials at any time, without notice, and is not obligated to provide such + * modified Materials to you. + * + * U.S. GOVERNMENT RESTRICTED RIGHTS: The Materials are provided with + * "RESTRICTED RIGHTS." Use, duplication, or disclosure by the Government is + * subject to the restrictions as set forth in FAR 52.227-14 and + * DFAR252.227-7013, et seq., or its successor. Use of the Materials by the + * Government constitutes acknowledgement of AMD's proprietary rights in them. + * + * EXPORT ASSURANCE: You agree and certify that neither the Materials, nor any + * direct product thereof will be exported directly or indirectly, into any + * country prohibited by the United States Export Administration Act and the + * regulations thereunder, without the required authorization from the U.S. + * government nor will be used for any purpose prohibited by the same. + ****************************************************************************** + */ + +/*---------------------------------------------------------------------------------------- + * 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 +}; |