diff options
Diffstat (limited to 'src/vendorcode/amd/agesa/f15/Proc/Mem/Main/mmLvDdr3.c')
-rw-r--r-- | src/vendorcode/amd/agesa/f15/Proc/Mem/Main/mmLvDdr3.c | 292 |
1 files changed, 292 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f15/Proc/Mem/Main/mmLvDdr3.c b/src/vendorcode/amd/agesa/f15/Proc/Mem/Main/mmLvDdr3.c new file mode 100644 index 0000000000..2874f3f76f --- /dev/null +++ b/src/vendorcode/amd/agesa/f15/Proc/Mem/Main/mmLvDdr3.c @@ -0,0 +1,292 @@ +/* $NoKeywords:$ */ +/** + * @file + * + * mmLvDdr3.c + * + * Main Memory Feature implementation file for low voltage DDR3 support + * + * @xrefitem bom "File Content Label" "Release Content" + * @e project: AGESA + * @e sub-project: (Mem/Main) + * @e \$Revision: 56279 $ @e \$Date: 2011-07-11 13:11:28 -0600 (Mon, 11 Jul 2011) $ + * + **/ +/***************************************************************************** +* +* Copyright (C) 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 "amdlib.h" +#include "OptionMemory.h" +#include "mm.h" +#include "mn.h" +#include "mmLvDdr3.h" +#include "GeneralServices.h" +#include "Filecode.h" +CODE_GROUP (G1_PEICC) +RDATA_GROUP (G2_PEI) + +#define FILECODE PROC_MEM_MAIN_MMLVDDR3_FILECODE + +extern MEM_FEAT_BLOCK_MAIN MemFeatMain; +/*---------------------------------------------------------------------------- + * PROTOTYPES OF LOCAL FUNCTIONS + * + *---------------------------------------------------------------------------- + */ + +/*----------------------------------------------------------------------------- +* EXPORTED FUNCTIONS +* +*----------------------------------------------------------------------------- +*/ + +/* -----------------------------------------------------------------------------*/ +/** + * + * Find the common supported voltage on all nodes. + * + * @param[in,out] *MemMainPtr - Pointer to the MEM_MAIN_DATA_BLOCK + * + * @return TRUE - No fatal error occurs. + * @return FALSE - Fatal error occurs. + */ +BOOLEAN +MemMLvDdr3 ( + IN OUT MEM_MAIN_DATA_BLOCK *MemMainPtr + ) +{ + UINT8 Node; + BOOLEAN RetVal; + BOOLEAN SecondLoop; + MEM_NB_BLOCK *NBPtr; + MEM_PARAMETER_STRUCT *ParameterPtr; + MEM_SHARED_DATA *mmSharedPtr; + + NBPtr = MemMainPtr->NBPtr; + mmSharedPtr = MemMainPtr->mmSharedPtr; + ParameterPtr = MemMainPtr->MemPtr->ParameterListPtr; + mmSharedPtr->VoltageMap = 0xFF; + SecondLoop = FALSE; + RetVal = TRUE; + + for (Node = 0; Node < MemMainPtr->DieCount; Node++) { + NBPtr[Node].FeatPtr->LvDdr3 (&NBPtr[Node]); + // Check if there is no common supported voltage + if ((mmSharedPtr->VoltageMap == 0) && !SecondLoop) { + // restart node loop by setting node to 0xFF + Node = 0xFF; + SecondLoop = TRUE; + } + } + + if (mmSharedPtr->VoltageMap == 0) { + IDS_HDT_CONSOLE (MEM_FLOW, "\nNo commonly supported VDDIO is found.\n"); + PutEventLog (AGESA_WARNING, MEM_WARNING_NO_COMMONLY_SUPPORTED_VDDIO, 0, 0, 0, 0, &(NBPtr[BSP_DIE].MemPtr->StdHeader)); + SetMemError (AGESA_WARNING, NBPtr[BSP_DIE].MCTPtr); + // When there is no commonly supported VDDIO, use 1.35V as the temporal VDDIO + ParameterPtr->DDR3Voltage = VOLT1_35; + } else { + IDS_HDT_CONSOLE (MEM_FLOW, "\nCommonly supported VDDIO is: %s%s%s.\n", ((mmSharedPtr->VoltageMap & 1) != 0) ? "1.5V, " : "", ((mmSharedPtr->VoltageMap & 2) != 0) ? "1.35V, " : "", ((mmSharedPtr->VoltageMap & 4) != 0) ? "1.25V" : ""); + ParameterPtr->DDR3Voltage = CONVERT_ENCODED_TO_VDDIO (LibAmdBitScanReverse (mmSharedPtr->VoltageMap)); + } + + for (Node = 0; Node < MemMainPtr->DieCount; Node ++) { + // Check if the voltage needs force to 1.5V + NBPtr[Node].FamilySpecificHook[ForceLvDimmVoltage] (&NBPtr[Node], MemMainPtr); + + RetVal &= (BOOLEAN) (NBPtr[Node].MCTPtr->ErrCode < AGESA_FATAL); + } + + return RetVal; +} + +/* -----------------------------------------------------------------------------*/ +/** + * + * Find the common supported voltage on all nodes, taken into account of the + * user option for performance and power saving. + * + * @param[in,out] *MemMainPtr - Pointer to the MEM_MAIN_DATA_BLOCK + * + * @return TRUE - No fatal error occurs. + * @return FALSE - Fatal error occurs. + */ +BOOLEAN +MemMLvDdr3PerformanceEnhPre ( + IN OUT MEM_MAIN_DATA_BLOCK *MemMainPtr + ) +{ + UINT8 Node; + BOOLEAN RetVal; + DIMM_VOLTAGE VDDIO; + MEM_NB_BLOCK *NBPtr; + MEM_PARAMETER_STRUCT *ParameterPtr; + MEM_SHARED_DATA *mmSharedPtr; + PLATFORM_POWER_POLICY PowerPolicy; + + NBPtr = MemMainPtr->NBPtr; + mmSharedPtr = MemMainPtr->mmSharedPtr; + ParameterPtr = MemMainPtr->MemPtr->ParameterListPtr; + PowerPolicy = MemMainPtr->MemPtr->PlatFormConfig->PlatformProfile.PlatformPowerPolicy; + + IDS_OPTION_HOOK (IDS_MEMORY_POWER_POLICY, &PowerPolicy, &NBPtr->MemPtr->StdHeader); + IDS_HDT_CONSOLE (MEM_FLOW, (PowerPolicy == Performance) ? "\nMaximize Performance\n" : "\nMaximize Battery Life\n"); + + if (ParameterPtr->DDR3Voltage != VOLT_INITIAL) { + mmSharedPtr->VoltageMap = VDDIO_DETERMINED; + PutEventLog (AGESA_WARNING, MEM_WARNING_INITIAL_DDR3VOLT_NONZERO, 0, 0, 0, 0, &(NBPtr[BSP_DIE].MemPtr->StdHeader)); + SetMemError (AGESA_WARNING, NBPtr[BSP_DIE].MCTPtr); + IDS_HDT_CONSOLE (MEM_FLOW, "Warning: Initial Value for VDDIO has been changed.\n"); + RetVal = TRUE; + } else { + RetVal = MemMLvDdr3 (MemMainPtr); + + VDDIO = ParameterPtr->DDR3Voltage; + if (NBPtr->IsSupported[PerformanceOnly] || ((PowerPolicy == Performance) && (mmSharedPtr->VoltageMap != 0))) { + // When there is no commonly supported voltage, do not optimize performance + // For cases where we can maximize performance, do the following + // When VDDIO is enforced, DDR3Voltage will be overriden by specific VDDIO + // So cases with DDR3Voltage left to be VOLT_UNSUPPORTED will be open to maximizing performance. + ParameterPtr->DDR3Voltage = VOLT_UNSUPPORTED; + } + + IDS_OPTION_HOOK (IDS_ENFORCE_VDDIO, &(ParameterPtr->DDR3Voltage), &NBPtr->MemPtr->StdHeader); + + if (ParameterPtr->DDR3Voltage != VOLT_UNSUPPORTED) { + // When Voltage is already determined, do not have further process to choose maximum frequency to optimize performance + mmSharedPtr->VoltageMap = VDDIO_DETERMINED; + IDS_HDT_CONSOLE (MEM_FLOW, "VDDIO is determined. No further optimization will be done.\n"); + } else { + for (Node = 0; Node < MemMainPtr->DieCount; Node++) { + NBPtr[Node].MaxFreqVDDIO[VOLT1_5_ENCODED_VAL] = UNSUPPORTED_DDR_FREQUENCY; + NBPtr[Node].MaxFreqVDDIO[VOLT1_35_ENCODED_VAL] = UNSUPPORTED_DDR_FREQUENCY; + NBPtr[Node].MaxFreqVDDIO[VOLT1_25_ENCODED_VAL] = UNSUPPORTED_DDR_FREQUENCY; + } + // Reprogram the leveling result as temporal candidate + ParameterPtr->DDR3Voltage = VDDIO; + } + } + + ASSERT (ParameterPtr->DDR3Voltage != VOLT_UNSUPPORTED); + return RetVal; +} + +/* -----------------------------------------------------------------------------*/ +/** + * + * Finalize the VDDIO for the board for performance enhancement. + * + * @param[in,out] *MemMainPtr - Pointer to the MEM_MAIN_DATA_BLOCK + * + * @return TRUE - No fatal error occurs. + * @return FALSE - Fatal error occurs. + */ +BOOLEAN +MemMLvDdr3PerformanceEnhFinalize ( + IN OUT MEM_MAIN_DATA_BLOCK *MemMainPtr + ) +{ + UINT8 Dct; + UINT8 Node; + UINT8 NodeCnt[VOLT1_25 + 1]; + UINT8 MaxCnt; + MEM_NB_BLOCK *NBPtr; + MEM_PARAMETER_STRUCT *ParameterPtr; + MEM_SHARED_DATA *mmSharedPtr; + UINT8 CurrentVoltage; + DIMM_VOLTAGE Voltage; + MEMORY_BUS_SPEED HighestFreq; + + ParameterPtr = MemMainPtr->MemPtr->ParameterListPtr; + mmSharedPtr = MemMainPtr->mmSharedPtr; + NBPtr = MemMainPtr->NBPtr; + + LibAmdMemFill (NodeCnt, 0, VOLT1_25_ENCODED_VAL + 1, &NBPtr->MemPtr->StdHeader); + if (mmSharedPtr->VoltageMap != VDDIO_DETERMINED) { + Voltage = ParameterPtr->DDR3Voltage; + IDS_HDT_CONSOLE (MEM_FLOW, "\nSearching for VDDIO that can maximize frequency: \n"); + for (Node = 0; Node < MemMainPtr->DieCount; Node++) { + HighestFreq = 0; + // Find out what the highest frequency that can be reached is on this node across different voltage. + for (CurrentVoltage = VOLT1_5_ENCODED_VAL; CurrentVoltage <= VOLT1_25_ENCODED_VAL; CurrentVoltage ++) { + if (HighestFreq < NBPtr[Node].MaxFreqVDDIO[CurrentVoltage]) { + HighestFreq = NBPtr[Node].MaxFreqVDDIO[CurrentVoltage]; + } + } + IDS_HDT_CONSOLE (MEM_FLOW, "Node%d: 1.5V -> %dMHz, 1.35V -> %dMHz, 1.25V -> %dMHz\n", Node, NBPtr[Node].MaxFreqVDDIO[VOLT1_5_ENCODED_VAL], NBPtr[Node].MaxFreqVDDIO[VOLT1_35_ENCODED_VAL], NBPtr[Node].MaxFreqVDDIO[VOLT1_25_ENCODED_VAL]); + // Figure out what voltage we can have when attaining the highest frequency. + for (CurrentVoltage = VOLT1_5_ENCODED_VAL; CurrentVoltage <= VOLT1_25_ENCODED_VAL; CurrentVoltage ++) { + if (NBPtr[Node].MaxFreqVDDIO[CurrentVoltage] == HighestFreq) { + NodeCnt[CurrentVoltage] ++; + } + } + } + IDS_HDT_CONSOLE (MEM_FLOW, "Number of nodes that can run at maximize performance: 1.5V -> %d Nodes 1.35V -> %d Nodes 1.25V -> %d Nodes.\n", NodeCnt[VOLT1_5_ENCODED_VAL], NodeCnt[VOLT1_35_ENCODED_VAL], NodeCnt[VOLT1_25_ENCODED_VAL]); + MaxCnt = 0; + // Use the VDDIO at which most nodes can run at higher frequency + for (CurrentVoltage = VOLT1_5_ENCODED_VAL; CurrentVoltage <= VOLT1_25_ENCODED_VAL; CurrentVoltage ++) { + if (MaxCnt <= NodeCnt[CurrentVoltage]) { + MaxCnt = NodeCnt[CurrentVoltage]; + ParameterPtr->DDR3Voltage = CONVERT_ENCODED_TO_VDDIO (CurrentVoltage); + } + } + + ASSERT (ParameterPtr->DDR3Voltage != VOLT_UNSUPPORTED); + + mmSharedPtr->VoltageMap = VDDIO_DETERMINED; + if (Voltage != ParameterPtr->DDR3Voltage) { + // Finalize frequency with updated finalized VDDIO + for (Node = 0; Node < MemMainPtr->DieCount; Node++) { + // Need to re-sync target speed and different VDDIO may cause different settings + NBPtr[Node].TechPtr->SpdGetTargetSpeed (NBPtr[Node].TechPtr); + for (Dct = 0; Dct < NBPtr[Node].DctCount; Dct++) { + NBPtr[Node].SwitchDCT (&(NBPtr[Node]), Dct); + if (NBPtr[Node].DCTPtr->Timings.CsEnabled != 0) { + if (!NBPtr[Node].PlatformSpec (&(NBPtr[Node]))) { + return FALSE; + } + } + } + } + } + } + return TRUE; +} |