/* $NoKeywords:$ */ /** * @file * * mfodthermal.c * * On Dimm thermal management. * * @xrefitem bom "File Content Label" "Release Content" * @e project: AGESA * @e sub-project: (Mem/Feat) * @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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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. * *************************************************************************** * */ /* *---------------------------------------------------------------------------- * MODULES USED * *---------------------------------------------------------------------------- */ #include "AGESA.h" #include "mm.h" #include "mn.h" #include "mt.h" #include "Ids.h" #include "mfodthermal.h" #include "Filecode.h" CODE_GROUP (G2_PEI) RDATA_GROUP (G2_PEI) #define FILECODE PROC_MEM_FEAT_ODTHERMAL_MFODTHERMAL_FILECODE /*---------------------------------------------------------------------------- * DEFINITIONS AND MACROS * *---------------------------------------------------------------------------- */ /*---------------------------------------------------------------------------- * TYPEDEFS AND STRUCTURES * *---------------------------------------------------------------------------- */ /*---------------------------------------------------------------------------- * PROTOTYPES OF LOCAL FUNCTIONS * *---------------------------------------------------------------------------- */ /*---------------------------------------------------------------------------- * EXPORTED FUNCTIONS * *---------------------------------------------------------------------------- */ /*-----------------------------------------------------------------------------*/ /** * * This function does On-Dimm thermal management. * * @param[in, out] *NBPtr - Pointer to the MEM_NB_BLOCK. * * @return TRUE - This feature is enabled. * @return FALSE - This feature is not enabled. */ BOOLEAN MemFOnDimmThermal ( IN OUT MEM_NB_BLOCK *NBPtr ) { UINT8 i; UINT8 Dct; CH_DEF_STRUCT *ChannelPtr; MEM_DATA_STRUCT *MemPtr; UINT8 *SpdBufferPtr; UINT8 ThermalOp; BOOLEAN ODTSEn; BOOLEAN ExtendTmp; ODTSEn = FALSE; ExtendTmp = FALSE; ASSERT (NBPtr != NULL); MemPtr = NBPtr->MemPtr; AGESA_TESTPOINT (TpProcMemOnDimmThermal, &MemPtr->StdHeader); if (NBPtr->MCTPtr->NodeMemSize != 0) { for (Dct = 0; Dct < NBPtr->DctCount; Dct++) { NBPtr->SwitchDCT (NBPtr, Dct); // Only go through the DCT if it is not disabled. if (NBPtr->GetBitField (NBPtr, BFDisDramInterface) == 0) { ChannelPtr = NBPtr->ChannelPtr; // If Ganged mode is enabled, need to go through all dram devices on both DCTs. if (!NBPtr->Ganged || (NBPtr->Dct != 1)) { if (!(NBPtr->IsSupported[CheckSetSameDctODTsEn]) || (NBPtr->IsSupported[CheckSetSameDctODTsEn] && (NBPtr->Dct != 1))) { ODTSEn = TRUE; ExtendTmp = TRUE; } } for (i = 0; i < MAX_DIMMS_PER_CHANNEL; i ++) { if (NBPtr->TechPtr->GetDimmSpdBuffer (NBPtr->TechPtr, &SpdBufferPtr, i)) { // Check byte 31: thermal and refresh option. ThermalOp = SpdBufferPtr[THERMAL_OPT]; // Bit 3: ODTS readout if (!((ThermalOp >> 3) & 1)) { ODTSEn = FALSE; } // Bit 0: Extended Temperature Range. if (!(ThermalOp & 1)) { ExtendTmp = FALSE; } } } if (!NBPtr->Ganged || (NBPtr->Dct == 1)) { // If in ganged mode, need to switch back to DCT0 to set the registers. if (NBPtr->Ganged || NBPtr->IsSupported[CheckSetSameDctODTsEn]) { NBPtr->SwitchDCT (NBPtr, 0); ChannelPtr = NBPtr->ChannelPtr; } // If all dram devices on support ODTS NBPtr->SetBitField (NBPtr, BFODTSEn, (ODTSEn == TRUE) ? 1 : 0); ChannelPtr->ExtendTmp = ExtendTmp; } } IDS_HDT_CONSOLE (MEM_FLOW, "\tDct %d\n", Dct); IDS_HDT_CONSOLE (MEM_FLOW, "\t\tODTSEn = %d\n", ODTSEn); IDS_HDT_CONSOLE (MEM_FLOW, "\t\tExtendTmp = %d\n", ExtendTmp); } } return TRUE; } /*---------------------------------------------------------------------------- * LOCAL FUNCTIONS * *---------------------------------------------------------------------------- */