diff options
Diffstat (limited to 'src/vendorcode/amd/agesa/f14/Proc/Mem/Feat/ECC/mfemp.c')
| -rw-r--r-- | src/vendorcode/amd/agesa/f14/Proc/Mem/Feat/ECC/mfemp.c | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f14/Proc/Mem/Feat/ECC/mfemp.c b/src/vendorcode/amd/agesa/f14/Proc/Mem/Feat/ECC/mfemp.c new file mode 100644 index 0000000000..cdf3568259 --- /dev/null +++ b/src/vendorcode/amd/agesa/f14/Proc/Mem/Feat/ECC/mfemp.c @@ -0,0 +1,174 @@ +/* $NoKeywords:$ */ +/** + * @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: 35136 $ @e \$Date: 2010-07-16 11:29:48 +0800 (Fri, 16 Jul 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 + * + *----------------------------------------------------------------------------- + */ + +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); +} |