| /* $NoKeywords:$ */ |
| /** |
| * @file |
| * |
| * mttecc.c |
| * |
| * Technology ECC byte support |
| * |
| * @xrefitem bom "File Content Label" "Release Content" |
| * @e project: AGESA |
| * @e sub-project: (Mem/Tech) |
| * @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 "Ids.h" |
| #include "mm.h" |
| #include "mn.h" |
| #include "mt.h" |
| #include "Filecode.h" |
| CODE_GROUP (G1_PEICC) |
| RDATA_GROUP (G1_PEICC) |
| |
| #define FILECODE PROC_MEM_TECH_MTTECC_FILECODE |
| /*---------------------------------------------------------------------------- |
| * DEFINITIONS AND MACROS |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| |
| /*---------------------------------------------------------------------------- |
| * TYPEDEFS AND STRUCTURES |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| |
| /*---------------------------------------------------------------------------- |
| * PROTOTYPES OF LOCAL FUNCTIONS |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| |
| VOID |
| STATIC |
| MemTCalcDQSEccTmg ( |
| IN OUT MEM_TECH_BLOCK *TechPtr, |
| IN UINT8 Dimm, |
| IN UINT8 Type, |
| IN OUT VOID *DlyArray |
| ); |
| |
| /*---------------------------------------------------------------------------- |
| * EXPORTED FUNCTIONS |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| |
| /* -----------------------------------------------------------------------------*/ |
| /** |
| * |
| * This function sets the DQS ECC timings |
| * |
| * @param[in,out] *TechPtr - Pointer to the MEM_TECH_BLOCK |
| * |
| * @return TRUE - No fatal error occurs. |
| * @return FALSE - Fatal error occurs. |
| */ |
| |
| BOOLEAN |
| MemTSetDQSEccTmgs ( |
| IN OUT MEM_TECH_BLOCK *TechPtr |
| ) |
| { |
| UINT8 Dct; |
| UINT8 Dimm; |
| UINT8 i; |
| |
| MEM_NB_BLOCK *NBPtr; |
| CH_DEF_STRUCT *ChannelPtr; |
| |
| NBPtr = TechPtr->NBPtr; |
| if (NBPtr->MCTPtr->NodeMemSize) { |
| for (Dct = 0; Dct < NBPtr->DctCount; Dct++) { |
| NBPtr->SwitchDCT (NBPtr, Dct); |
| if (NBPtr->DCTPtr->Timings.DctMemSize != 0) { |
| ChannelPtr = NBPtr->ChannelPtr; |
| for (Dimm = 0; Dimm < MAX_DIMMS_PER_CHANNEL; Dimm++) { |
| if (NBPtr->DCTPtr->Timings.CsEnabled & ((UINT16)1 << (Dimm * 2))) { |
| i = Dimm * TechPtr->DlyTableWidth (); |
| MemTCalcDQSEccTmg (TechPtr, Dimm, AccessRcvEnDly, &ChannelPtr->RcvEnDlys[i]); |
| MemTCalcDQSEccTmg (TechPtr, Dimm, AccessRdDqsDly, &ChannelPtr->RdDqsDlys[i]); |
| MemTCalcDQSEccTmg (TechPtr, Dimm, AccessWrDatDly, &ChannelPtr->WrDatDlys[i]); |
| } |
| } |
| } |
| } |
| } |
| return (BOOLEAN) (NBPtr->MCTPtr->ErrCode < AGESA_FATAL); |
| } |
| |
| /*---------------------------------------------------------------------------- |
| * LOCAL FUNCTIONS |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| |
| /* -----------------------------------------------------------------------------*/ |
| /** |
| * |
| * This function calculates the DQS ECC timings |
| * |
| * @param[in,out] *TechPtr - Pointer to the MEM_TECH_BLOCK |
| * @param[in] Dimm - Dimm number |
| * @param[in] Type - Type of DQS timing |
| * @param[in,out] *DlyArray - Pointer to the array of delays per this Dimm |
| * |
| */ |
| |
| VOID |
| STATIC |
| MemTCalcDQSEccTmg ( |
| IN OUT MEM_TECH_BLOCK *TechPtr, |
| IN UINT8 Dimm, |
| IN UINT8 Type, |
| IN OUT VOID *DlyArray |
| ) |
| { |
| UINT8 i; |
| UINT8 j; |
| UINT8 Scale; |
| UINT8 EccByte; |
| UINT16 ByteiDly; |
| UINT16 BytejDly; |
| UINT16 EccDly; |
| UINT8 *WrDqsDly; |
| MEM_NB_BLOCK *NBPtr; |
| CH_DEF_STRUCT *ChannelPtr; |
| |
| NBPtr = TechPtr->NBPtr; |
| ChannelPtr = NBPtr->ChannelPtr; |
| |
| EccByte = TechPtr->MaxByteLanes (); |
| i = (UINT8) (ChannelPtr->DctEccDqsLike & 0xFF); |
| j = (UINT8) (ChannelPtr->DctEccDqsLike >> 8); |
| Scale = ChannelPtr->DctEccDqsScale; |
| WrDqsDly = &ChannelPtr->WrDqsDlys[Dimm * TechPtr->DlyTableWidth ()]; |
| |
| if (Type == AccessRcvEnDly) { |
| ByteiDly = ((UINT16 *) DlyArray)[i]; |
| BytejDly = ((UINT16 *) DlyArray)[j]; |
| } else { |
| ByteiDly = ((UINT8 *) DlyArray)[i]; |
| BytejDly = ((UINT8 *) DlyArray)[j]; |
| } |
| |
| // |
| // For WrDatDly, Subtract TxDqs Delay to get |
| // TxDq-TxDqs Delta, which is what should be averaged. |
| // |
| if (Type == AccessWrDatDly) { |
| ByteiDly = ByteiDly - WrDqsDly[i]; |
| BytejDly = BytejDly - WrDqsDly[j]; |
| } |
| |
| if (BytejDly > ByteiDly) { |
| EccDly = ByteiDly + (UINT8) (((UINT16) (BytejDly - ByteiDly) * Scale + 0x77) / 0xFF); |
| // Round up --^ |
| } else { |
| EccDly = BytejDly + (UINT8) (((UINT16) (ByteiDly - BytejDly) * (0xFF - Scale) + 0x77) / 0xFF); |
| // Round up --^ |
| } |
| |
| if (Type == AccessRcvEnDly) { |
| ((UINT16 *) DlyArray)[EccByte] = EccDly; |
| } else { |
| ((UINT8 *) DlyArray)[EccByte] = (UINT8) EccDly; |
| } |
| |
| // |
| // For WrDatDly, Add back the TxDqs value for ECC bytelane |
| // |
| if (Type == AccessWrDatDly) { |
| EccDly = EccDly + WrDqsDly[EccByte]; |
| } |
| |
| NBPtr->SetTrainDly (NBPtr, Type, DIMM_BYTE_ACCESS (Dimm, EccByte), EccDly); |
| } |