| /* $NoKeywords:$ */ |
| /** |
| * @file |
| * |
| * mfodthermal.c |
| * |
| * On Dimm thermal management. |
| * |
| * @xrefitem bom "File Content Label" "Release Content" |
| * @e project: AGESA |
| * @e sub-project: (Mem/Feat) |
| * @e \$Revision: 84150 $ @e \$Date: 2012-12-12 15:46:25 -0600 (Wed, 12 Dec 2012) $ |
| * |
| **/ |
| /***************************************************************************** |
| * |
| * Copyright (c) 2008 - 2013, 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. |
| * *************************************************************************** |
| * |
| */ |
| |
| /* |
| *---------------------------------------------------------------------------- |
| * 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; |
| BOOLEAN FirstLoop; |
| |
| ODTSEn = FALSE; |
| ExtendTmp = FALSE; |
| FirstLoop = TRUE; |
| |
| 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)) || |
| ((NBPtr->Dct != 0) && (FirstLoop == TRUE))) { |
| 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; |
| } |
| FirstLoop = FALSE; |
| } else { |
| ODTSEn = FALSE; |
| ExtendTmp = FALSE; |
| } |
| 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 |
| * |
| *---------------------------------------------------------------------------- |
| */ |