| /* $NoKeywords:$ */ |
| /** |
| * @file |
| * |
| * mfchi.c |
| * |
| * Feature Channel interleaving support |
| * |
| * @xrefitem bom "File Content Label" "Release Content" |
| * @e project: AGESA |
| * @e sub-project: (Mem/Feat/Chintlv) |
| * @e \$Revision: 63425 $ @e \$Date: 2011-12-22 11:24:10 -0600 (Thu, 22 Dec 2011) $ |
| * |
| **/ |
| /***************************************************************************** |
| * |
| * Copyright (c) 2008 - 2012, 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 "mfchi.h" |
| #include "Ids.h" |
| #include "GeneralServices.h" |
| #include "Filecode.h" |
| CODE_GROUP (G2_PEI) |
| RDATA_GROUP (G2_PEI) |
| |
| #define FILECODE PROC_MEM_FEAT_CHINTLV_MFCHI_FILECODE |
| /*---------------------------------------------------------------------------- |
| * DEFINITIONS AND MACROS |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| #define _4GB_ (0x10000ul >> 10) |
| |
| /*---------------------------------------------------------------------------- |
| * TYPEDEFS AND STRUCTURES |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| |
| /*---------------------------------------------------------------------------- |
| * PROTOTYPES OF LOCAL FUNCTIONS |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| |
| /*---------------------------------------------------------------------------- |
| * EXPORTED FUNCTIONS |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| |
| /* -----------------------------------------------------------------------------*/ |
| /** |
| * |
| * MemFInterleaveChannels: |
| * |
| * Applies DIMM channel interleaving if enabled, if not ganged mode, and |
| * there are valid dimms in both channels. Called once per Node. |
| * |
| * @param[in,out] *NBPtr - Pointer to the MEM_NB_BLOCK |
| * |
| * @return TRUE - This feature is enabled. |
| * @return FALSE - This feature is not enabled. |
| */ |
| |
| BOOLEAN |
| MemFInterleaveChannels ( |
| IN OUT MEM_NB_BLOCK *NBPtr |
| ) |
| { |
| UINT32 DramBase; |
| UINT32 DctSelBase; |
| UINT32 HoleSize; |
| UINT32 HoleBase; |
| UINT32 HoleOffset; |
| UINT32 Dct0Size; |
| UINT32 Dct1Size; |
| UINT32 SmallerDct; |
| UINT8 DctSelIntLvAddr; |
| UINT8 DctSelHi; |
| UINT8 DctSelHiRngEn; |
| UINT32 HoleValid; |
| |
| MEM_PARAMETER_STRUCT *RefPtr; |
| DIE_STRUCT *MCTPtr; |
| |
| ASSERT (NBPtr != NULL); |
| |
| RefPtr = NBPtr->RefPtr; |
| |
| DctSelIntLvAddr = NBPtr->DefDctSelIntLvAddr; |
| if (RefPtr->EnableChannelIntlv) { |
| HoleSize = 0; |
| HoleBase = 0; |
| if (RefPtr->GStatus[GsbSoftHole] || RefPtr->GStatus[GsbHWHole]) { |
| // HoleBase scaled from [47:16] to [47:26] |
| HoleBase = RefPtr->HoleBase >> 10; |
| HoleSize = _4GB_ - HoleBase; |
| } |
| |
| MCTPtr = NBPtr->MCTPtr; |
| |
| HoleValid = NBPtr->GetBitField (NBPtr, BFDramHoleValid); |
| if ((!MCTPtr->GangedMode) && |
| (MCTPtr->DctData[0].Timings.DctMemSize != 0) && |
| (MCTPtr->DctData[1].Timings.DctMemSize != 0)) { |
| // DramBase scaled [47:16] to [47:26] |
| DramBase = MCTPtr->NodeSysBase >> 10; |
| // Scale NodeSysLimit [47:16] to [47:26] |
| Dct1Size = (MCTPtr->NodeSysLimit + 1) >> 10; |
| Dct0Size = NBPtr->GetBitField (NBPtr, BFDctSelBaseOffset); |
| if ((Dct0Size >= _4GB_) && (DramBase < HoleBase)) { |
| Dct0Size -= HoleSize; |
| } |
| if ((Dct1Size >= _4GB_) && (DramBase < HoleBase)) { |
| Dct1Size -= HoleSize; |
| } |
| Dct1Size -= Dct0Size; |
| Dct0Size -= DramBase; |
| |
| // Select the bigger size DCT to put in DctSelHi |
| DctSelHiRngEn = 1; |
| DctSelHi = 0; |
| SmallerDct = Dct1Size; |
| if (Dct1Size == Dct0Size) { |
| SmallerDct = 0; |
| DctSelHiRngEn = 0; |
| } else if (Dct1Size > Dct0Size) { |
| SmallerDct = Dct0Size; |
| DctSelHi = 1; |
| } |
| |
| if (SmallerDct != 0) { |
| DctSelBase = (SmallerDct * 2) + DramBase; |
| } else { |
| DctSelBase = 0; |
| } |
| if ((DctSelBase >= HoleBase) && (DramBase < HoleBase)) { |
| DctSelBase += HoleSize; |
| } |
| IDS_OPTION_HOOK (IDS_CHANNEL_INTERLEAVE, &DctSelIntLvAddr, &(NBPtr->MemPtr->StdHeader)); |
| NBPtr->SetBitField (NBPtr, BFDctSelBaseAddr, DctSelBase >> 1); |
| NBPtr->SetBitField (NBPtr, BFDctSelHiRngEn, DctSelHiRngEn); |
| NBPtr->SetBitField (NBPtr, BFDctSelHi, DctSelHi); |
| NBPtr->SetBitField (NBPtr, BFDctSelIntLvAddr, DctSelIntLvAddr); |
| NBPtr->SetBitField (NBPtr, BFDctSelIntLvEn, 1); |
| |
| // DctSelBaseOffset = DctSelBaseAddr - Interleaved region |
| NBPtr->SetBitField (NBPtr, BFDctSelBaseOffset, DctSelBase - SmallerDct); |
| |
| // Adjust DramHoleOffset |
| if (HoleValid != 0) { |
| HoleOffset = DramBase; |
| if ((DctSelBase < HoleBase) && (DctSelBase != 0)) { |
| HoleOffset += (DctSelBase - DramBase) >> 1; |
| } |
| HoleOffset += HoleSize; |
| NBPtr->SetBitField (NBPtr, BFDramHoleOffset, HoleOffset << 3); |
| } |
| } else { |
| // |
| // Channel Interleaving is requested but cannot be enabled |
| // |
| PutEventLog (AGESA_WARNING, MEM_WARNING_CHANNEL_INTERLEAVING_NOT_ENABLED, NBPtr->Node, 0, 0, 0, &NBPtr->MemPtr->StdHeader); |
| SetMemError (AGESA_WARNING, MCTPtr); |
| } |
| |
| return TRUE; |
| } else { |
| return FALSE; |
| } |
| } |