| /* $NoKeywords:$ */ |
| /** |
| * @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: 84150 $ @e \$Date: 2012-12-12 15:46:25 -0600 (Wed, 12 Dec 2012) $ |
| * |
| **/ |
| /***************************************************************************** |
| * |
| * Copyright (c) 2008 - 2013, 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 "mu.h" |
| #include "mmlvddr3.h" |
| #include "GeneralServices.h" |
| #include "PlatformMemoryConfiguration.h" |
| #include "Filecode.h" |
| CODE_GROUP (G1_PEICC) |
| RDATA_GROUP (G1_PEICC) |
| |
| #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. |
| */ |
| STATIC 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; |
| UINT8 *PowerPolicyPtr; |
| |
| NBPtr = MemMainPtr->NBPtr; |
| mmSharedPtr = MemMainPtr->mmSharedPtr; |
| ParameterPtr = MemMainPtr->MemPtr->ParameterListPtr; |
| PowerPolicyPtr = FindPSOverrideEntry (NBPtr->RefPtr->PlatformMemoryConfiguration, PSO_MEMORY_POWER_POLICY, 0, 0, 0, NULL, NULL); |
| if (PowerPolicyPtr != NULL) { |
| PowerPolicy = (PLATFORM_POWER_POLICY) *PowerPolicyPtr; |
| IDS_HDT_CONSOLE (MEM_FLOW, "\nPlatform overrides memory power policy"); |
| } else { |
| 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; |
| UINT32 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; |
| } |