| /* $NoKeywords:$ */ |
| /** |
| * @file |
| * |
| * mfemp.c |
| * |
| * Feature EMP initialization functions |
| * |
| * @xrefitem bom "File Content Label" "Release Content" |
| * @e project: AGESA |
| * @e sub-project: (Mem/Feat/ECC) |
| * @e \$Revision: 44324 $ @e \$Date: 2010-12-22 17:16:51 +0800 (Wed, 22 Dec 2010) $ |
| * |
| **/ |
| /***************************************************************************** |
| * |
| * 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. |
| * *************************************************************************** |
| * |
| */ |
| |
| |
| |
| |
| #include "AGESA.h" |
| #include "mm.h" |
| #include "mn.h" |
| #include "Ids.h" |
| #include "GeneralServices.h" |
| #include "Filecode.h" |
| CODE_GROUP (G2_PEI) |
| RDATA_GROUP (G2_PEI) |
| |
| #define FILECODE PROC_MEM_FEAT_ECC_MFEMP_FILECODE |
| /*---------------------------------------------------------------------------- |
| * DEFINITIONS AND MACROS |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| |
| /*---------------------------------------------------------------------------- |
| * TYPEDEFS AND STRUCTURES |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| |
| /*---------------------------------------------------------------------------- |
| * PROTOTYPES OF LOCAL FUNCTIONS |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| BOOLEAN |
| STATIC |
| IsPowerOfTwo ( |
| IN UINT32 TestNumber |
| ); |
| |
| /* |
| *----------------------------------------------------------------------------- |
| * EXPORTED FUNCTIONS |
| * |
| *----------------------------------------------------------------------------- |
| */ |
| BOOLEAN |
| MemFInitEMP ( |
| IN OUT MEM_NB_BLOCK *NBPtr |
| ); |
| |
| extern BUILD_OPT_CFG UserOptions; |
| |
| /* -----------------------------------------------------------------------------*/ |
| /** |
| * |
| * |
| * This function initializes EMP (Enhanced Memory Protection) |
| * |
| * @param[in,out] *NBPtr - Pointer to the MEM_NB_BLOCK |
| * |
| * @return TRUE - This feature is enabled. |
| * @return FALSE - This feature is not enabled. |
| */ |
| |
| BOOLEAN |
| MemFInitEMP ( |
| IN OUT MEM_NB_BLOCK *NBPtr |
| ) |
| { |
| MEM_PARAMETER_STRUCT *RefPtr; |
| DIE_STRUCT *MCTPtr; |
| |
| ASSERT (NBPtr != NULL); |
| |
| RefPtr = NBPtr->RefPtr; |
| MCTPtr = NBPtr->MCTPtr; |
| if (RefPtr->EnableEccFeature) { |
| if (NBPtr->GetBitField (NBPtr, BFEnhMemProtCap) == 0) { |
| PutEventLog (AGESA_WARNING, MEM_WARNING_EMP_NOT_SUPPORTED, 0, 0, 0, 0, &NBPtr->MemPtr->StdHeader); |
| MCTPtr->ErrStatus[EsbEMPNotSupported] = TRUE; |
| } else if (RefPtr->EnableChannelIntlv || RefPtr->EnableBankIntlv || RefPtr->EnableBankSwizzle) { |
| PutEventLog (AGESA_WARNING, MEM_WARNING_EMP_CONFLICT, 0, 0, 0, 0, &NBPtr->MemPtr->StdHeader); |
| MCTPtr->ErrStatus[EsbEMPConflict] = TRUE; |
| } else if ((!MCTPtr->GangedMode) && |
| (!IsPowerOfTwo (MCTPtr->DctData[0].Timings.DctMemSize) && |
| !IsPowerOfTwo (MCTPtr->DctData[1].Timings.DctMemSize))) { |
| PutEventLog (AGESA_WARNING, MEM_WARNING_EMP_NOT_ENABLED, 0, 0, 0, 0, &NBPtr->MemPtr->StdHeader); |
| MCTPtr->ErrStatus[EsbEMPDis] = TRUE; |
| } else { |
| // Reduce memory size to 7/8 of the original memory size |
| ASSERT ((MCTPtr->NodeMemSize % 8) == 0); |
| NBPtr->SetBitField (NBPtr, BFDramHoleValid, 0); |
| MCTPtr->NodeMemSize = (MCTPtr->NodeMemSize / 8) * 7; |
| NBPtr->HtMemMapInit (NBPtr); |
| NBPtr->CpuMemTyping (NBPtr); |
| |
| // Enable EMP |
| NBPtr->SetBitField (NBPtr, BFDramEccEn, 1); |
| |
| // Scrub CTL settings for Dcache, L2 |
| NBPtr->SetBitField (NBPtr, BFL2Scrub, UserOptions.CfgScrubL2Rate); |
| NBPtr->SetBitField (NBPtr, BFDcacheScrub, UserOptions.CfgScrubDcRate); |
| |
| NBPtr->SetBitField (NBPtr, BFSyncOnUcEccEn, UserOptions.CfgEccSyncFlood); |
| return TRUE; |
| } |
| } |
| return FALSE; |
| } |
| |
| /*---------------------------------------------------------------------------- |
| * LOCAL FUNCTIONS |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| |
| /* -----------------------------------------------------------------------------*/ |
| /** |
| * |
| * |
| * This function checks to see if the input is power of two. |
| * |
| * @param[in] TestNumber - Value to check for power of two |
| * |
| * @return TRUE - is power of two |
| * FALSE - is not power of two |
| */ |
| BOOLEAN |
| STATIC |
| IsPowerOfTwo ( |
| IN UINT32 TestNumber |
| ) |
| { |
| return (BOOLEAN) ((TestNumber & (TestNumber - 1)) == 0); |
| } |