/* $NoKeywords:$ */ /** * @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: 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. * *************************************************************************** * */ #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 ); BOOLEAN MemFInitEMP ( IN OUT MEM_NB_BLOCK *NBPtr ); /* *----------------------------------------------------------------------------- * EXPORTED FUNCTIONS * *----------------------------------------------------------------------------- */ 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); }