| /* $NoKeywords:$ */ |
| /** |
| * @file |
| * |
| * mmConditionalPso.c |
| * |
| * Functions to support conditional entries in the Platform Specific Override Table |
| * |
| * @xrefitem bom "File Content Label" "Release Content" |
| * @e project: AGESA |
| * @e sub-project: (Mem/Main) |
| * @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 "amdlib.h" |
| #include "OptionMemory.h" |
| #include "PlatformMemoryConfiguration.h" |
| #include "Ids.h" |
| #include "Filecode.h" |
| CODE_GROUP (G1_PEICC) |
| RDATA_GROUP (G1_PEICC) |
| |
| #define FILECODE PROC_MEM_MAIN_MMCONDITIONALPSO_FILECODE |
| /*---------------------------------------------------------------------------- |
| * DEFINITIONS AND MACROS |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| |
| |
| /*---------------------------------------------------------------------------- |
| * TYPEDEFS AND STRUCTURES |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| |
| #define PSO_TYPE 0 |
| #define PSO_LENGTH 1 |
| #define PSO_DATA 2 |
| |
| typedef enum _PSO_STATE { |
| PSO_FIND_CONDITION = 100, // Searching for initial Condition statement |
| PSO_FIND_ACTION, // Searching for initial Action Statement |
| PSO_MATCH_ACTION, // Trying to find an action that matches the caller's request |
| PSO_CHECK_CONDITION, // Checking the condition that preceded the found action |
| PSO_DO_ACTION, // Performing Action |
| PSO_COMPLETE // Completed processing of this request |
| } PSO_STATE; |
| |
| typedef struct _D3_CMP_CAL { |
| UINT32 D3Cmp0NCal :3; |
| UINT32 Reserved34 :2; |
| UINT32 D3Cmp0PCal :3; |
| UINT32 Reserved89 :2; |
| UINT32 D3Cmp1NCal :3; |
| UINT32 Reserved1314 :2; |
| UINT32 D3Cmp1PCal :3; |
| UINT32 Reserved1819 :2; |
| UINT32 D3Cmp2NCal :3; |
| UINT32 Reserved2324 :2; |
| UINT32 D3Cmp2PCal :3; |
| UINT32 Reserved2831 :2; |
| } D3_CMP_CAL; |
| |
| /*---------------------------------------------------------------------------- |
| * PROTOTYPES OF LOCAL FUNCTIONS |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| BOOLEAN |
| STATIC |
| MemPSODoActionODT ( |
| IN OUT MEM_NB_BLOCK *NBPtr, |
| IN UINT8 *Buffer |
| ); |
| |
| BOOLEAN |
| STATIC |
| MemPSODoActionAddrTmg ( |
| IN OUT MEM_NB_BLOCK *NBPtr, |
| IN UINT8 *Buffer |
| ); |
| |
| BOOLEAN |
| STATIC |
| MemPSODoActionODCControl ( |
| IN OUT MEM_NB_BLOCK *NBPtr, |
| IN UINT8 *Buffer |
| ); |
| |
| BOOLEAN |
| STATIC |
| MemPSODoActionSlewRate ( |
| IN OUT MEM_NB_BLOCK *NBPtr, |
| IN UINT8 *Buffer |
| ); |
| |
| BOOLEAN |
| STATIC |
| MemPSODoActionGetFreqLimit ( |
| IN OUT MEM_NB_BLOCK *NBPtr, |
| IN UINT8 *Buffer |
| ); |
| |
| BOOLEAN |
| STATIC |
| MemCheckRankType ( |
| IN CH_DEF_STRUCT *CurrentChannel, |
| IN UINT16 RankType |
| ); |
| /*---------------------------------------------------------------------------- |
| * EXPORTED FUNCTIONS |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| |
| |
| /* -----------------------------------------------------------------------------*/ |
| /** |
| * |
| * Process Conditional Platform Specific Overrides |
| * |
| * @param[in] PlatformMemoryConfiguration - Pointer to Platform config table |
| * @param[in] NBPtr - Pointer to Current NBBlock |
| * @param[in] PsoAction - Action type |
| * @param[in] Dimm - Dimm Number |
| * |
| * @return BOOLEAN - TRUE : Action was performed |
| * FALSE: Action was not performed |
| * |
| * ---------------------------------------------------------------------------- |
| */ |
| BOOLEAN |
| MemProcessConditionalOverrides ( |
| IN PSO_TABLE *PlatformMemoryConfiguration, |
| IN OUT MEM_NB_BLOCK *NBPtr, |
| IN UINT8 PsoAction, |
| IN UINT8 Dimm |
| ) |
| { |
| BOOLEAN Result; |
| MEM_TECH_BLOCK *TechPtr; |
| UINT8 *Buffer; |
| UINT8 *ConditionStartPtr; |
| UINT8 *ActionStartPtr; |
| UINT8 *SpdBufferPtr; |
| UINT8 i; |
| UINT8 DimmMask; |
| UINT8 CurDimmMask; |
| BOOLEAN Condition; |
| BOOLEAN TmpCond; |
| PSO_STATE State; |
| ASSERT (PlatformMemoryConfiguration != NULL); |
| ASSERT (NBPtr != NULL); |
| ASSERT ((PsoAction >= PSO_ACTION_MIN) && (PsoAction <= PSO_ACTION_MAX)); |
| // |
| // Set up local data |
| // |
| TechPtr = NBPtr->TechPtr; |
| Buffer = PlatformMemoryConfiguration; |
| State = PSO_FIND_CONDITION; |
| ConditionStartPtr = NULL; |
| ActionStartPtr = NULL; |
| Condition = FALSE; |
| DimmMask = 0xFF; |
| CurDimmMask = 0xFF; |
| Result = FALSE; |
| |
| if (Dimm != 0xFF) { |
| DimmMask = ( 1 << Dimm); |
| } |
| DimmMask &= (UINT8) (NBPtr->ChannelPtr->ChDimmValid & 0xFF); |
| if (DimmMask == 0) { |
| return Result; |
| } |
| |
| // |
| // Search for Condition Entry |
| // |
| while (State != PSO_COMPLETE) { |
| switch (State) { |
| // |
| // Searching for initial Condition statement |
| // |
| case PSO_FIND_CONDITION: |
| ASSERT (Buffer != NULL); |
| while (Buffer[PSO_TYPE] != PSO_CONDITION_AND) { |
| // |
| // If end of table is reached, Change state to complete and break. |
| // |
| if (Buffer[PSO_TYPE] == PSO_END) { |
| State = PSO_COMPLETE; |
| break; |
| } |
| // |
| // Otherwise, increment Buffer Pointer to the next PSO entry. |
| // |
| Buffer += (Buffer[PSO_LENGTH] + 2); |
| } |
| // |
| // If Condition statement has been found, save the Condition Start Pointer, |
| // and change to next state |
| // |
| if (State != PSO_COMPLETE) { |
| ASSERT (Buffer != NULL); |
| State = PSO_FIND_ACTION; |
| ConditionStartPtr = Buffer; |
| Buffer += (Buffer[PSO_LENGTH] + 2); |
| } |
| break; |
| // |
| // Searching for an action that matches the caller's request |
| // |
| case PSO_FIND_ACTION: |
| ASSERT (Buffer != NULL); |
| while (Buffer[PSO_TYPE] != PsoAction) { |
| // |
| // If non-conditional entry, change state to complete and break. |
| // |
| if ((Buffer[PSO_TYPE] < CONDITIONAL_PSO_MIN) || (Buffer[PSO_TYPE] > CONDITIONAL_PSO_MAX)) { |
| State = PSO_COMPLETE; |
| break; |
| } |
| // |
| // Check for the Start of a new condition block |
| // |
| if (Buffer[PSO_TYPE] == PSO_CONDITION_AND) { |
| ConditionStartPtr = Buffer; |
| } |
| // |
| // Otherwise, increment buffer pointer to the next PSO entry. |
| // |
| Buffer += (Buffer[PSO_LENGTH] + 2); |
| } |
| // |
| // If Action statement has been found, Save the Action Start Pointer, Reset Buffer to Condition Start |
| // and Change to next state. |
| // |
| if (State != PSO_COMPLETE) { |
| State = PSO_CHECK_CONDITION; |
| ASSERT (Buffer != NULL); |
| ActionStartPtr = Buffer; |
| Buffer = ConditionStartPtr; |
| Condition = TRUE; |
| } |
| break; |
| // |
| // Checking the condition that preceded the found action |
| // |
| case PSO_CHECK_CONDITION: |
| ASSERT (Buffer != NULL); |
| // |
| // Point to the next Condition |
| // |
| Buffer += (Buffer[PSO_LENGTH] + 2); |
| ASSERT ((Buffer[PSO_TYPE] >= CONDITIONAL_PSO_MIN) && (Buffer[PSO_TYPE] <= CONDITIONAL_PSO_MAX)); |
| // |
| // This section has already been checked for invalid statements so just exit on ACTION_xx |
| // |
| if ((Buffer[PSO_TYPE] >= PSO_ACTION_MIN) && (Buffer[PSO_TYPE] <= PSO_ACTION_MAX)) { |
| if (Condition) { |
| ASSERT (Buffer != NULL); |
| State = PSO_DO_ACTION; // Perform the Action |
| } else { |
| State = PSO_FIND_CONDITION; // Go back and look for another condition/action |
| } |
| Buffer = ActionStartPtr; // Restore Action Pointer |
| break; |
| } |
| switch (Buffer[PSO_TYPE]) { |
| |
| case PSO_CONDITION_AND: |
| // |
| // Additional CONDITION_AND is ORed with Previous ones, so if Previous result is TRUE |
| // just restore action pointer and perform the action. |
| // |
| if (Condition) { |
| State = PSO_DO_ACTION; |
| Buffer = ActionStartPtr; |
| } else { |
| // |
| // If its false, Start over and evaluate next cond. |
| // reset the Current Dimm Mask |
| // |
| Condition = TRUE; |
| CurDimmMask = 0xFF; |
| } |
| break; |
| |
| case PSO_CONDITION_LOC: |
| // |
| // Condition location |
| // |
| CurDimmMask = Buffer[4]; |
| Condition &= ( ((Buffer[2] & (1 << (NBPtr->MCTPtr->SocketId))) != 0) && |
| ((Buffer[3] & (1 << (NBPtr->ChannelPtr->ChannelID))) != 0) && |
| ((CurDimmMask & DimmMask) != 0) ); |
| break; |
| |
| case PSO_CONDITION_SPD: |
| // |
| // Condition SPD |
| // |
| TmpCond = FALSE; |
| for (i = 0; i < MAX_DIMMS_PER_CHANNEL; i ++) { |
| if ( ((DimmMask & CurDimmMask) & ((UINT16) (1 << i))) != 0) { |
| if (TechPtr->GetDimmSpdBuffer (TechPtr, &SpdBufferPtr, i)) { |
| TmpCond |= ( (SpdBufferPtr[Buffer[2]] & Buffer[3]) == Buffer[4]); |
| } |
| } |
| } |
| Condition &= TmpCond; |
| break; |
| |
| case PSO_CONDITION_REG: |
| // |
| // Condition Register - unsupported at this time |
| // |
| break; |
| |
| default: |
| ASSERT (FALSE); |
| } // End Condition Switch |
| break; |
| |
| case PSO_DO_ACTION: |
| ASSERT (Buffer != NULL); |
| // |
| // Performing Action |
| // |
| if ((Buffer[PSO_TYPE] < PSO_ACTION_MIN) || (Buffer[PSO_TYPE] > PSO_ACTION_MAX)) { |
| State = PSO_COMPLETE; |
| } |
| if (Buffer[PSO_TYPE] == PsoAction) { |
| switch (Buffer[PSO_TYPE]) { |
| case PSO_ACTION_ODT: |
| Result = MemPSODoActionODT (NBPtr, &Buffer[PSO_DATA]); |
| break; |
| case PSO_ACTION_ADDRTMG: |
| Result = MemPSODoActionAddrTmg (NBPtr, &Buffer[PSO_DATA]); |
| break; |
| case PSO_ACTION_ODCCONTROL: |
| Result = MemPSODoActionODCControl (NBPtr, &Buffer[PSO_DATA]); |
| break; |
| case PSO_ACTION_SLEWRATE: |
| Result = MemPSODoActionSlewRate (NBPtr, &Buffer[PSO_DATA]); |
| break; |
| case PSO_ACTION_SPEEDLIMIT: |
| Result = MemPSODoActionGetFreqLimit (NBPtr, &Buffer[PSO_DATA]); |
| break; |
| case PSO_ACTION_REG: |
| break; |
| default: |
| ASSERT (FALSE); |
| } // End Action Switch |
| // |
| // If Action was performed, mark complete. |
| // |
| if (Result) { |
| State = PSO_COMPLETE; |
| } |
| }// End Action |
| |
| // |
| // Point to the next PSO Entry |
| // |
| Buffer += (Buffer[PSO_LENGTH] + 2); |
| break; |
| |
| case PSO_COMPLETE: |
| // |
| // Completed processing of this request |
| // |
| break; |
| |
| default: |
| ASSERT (FALSE); |
| } // End State Switch |
| |
| } // End While |
| |
| return Result; |
| } |
| |
| /*---------------------------------------------------------------------------- |
| * LOCAL FUNCTIONS |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| |
| /* -----------------------------------------------------------------------------*/ |
| /** |
| * Perform ODT Platform Override |
| * |
| * @param[in] NBPtr - Pointer to Current NBBlock |
| * @param[in] Buffer - Pointer to the Action Command Data (w/o Type and Len) |
| * |
| * @return BOOLEAN - TRUE : Action was performed |
| * FALSE: Action was not performed |
| * |
| * ---------------------------------------------------------------------------- |
| */ |
| BOOLEAN |
| STATIC |
| MemPSODoActionODT ( |
| IN OUT MEM_NB_BLOCK *NBPtr, |
| IN UINT8 *Buffer |
| ) |
| { |
| BOOLEAN Result; |
| UINT32 Speed; |
| UINT8 Dimms; |
| UINT8 i; |
| UINT8 QR_Dimms; |
| Result = FALSE; |
| Speed = ((UINT32) 1 << (NBPtr->DCTPtr->Timings.Speed / 66)); |
| Dimms = NBPtr->ChannelPtr->Dimms; |
| QR_Dimms = 0; |
| for (i = 0; i < MAX_DIMMS_PER_CHANNEL; i++) { |
| if (((NBPtr->ChannelPtr->DimmQrPresent & (UINT16) (1 << i)) != 0) && (i < 2)) { |
| QR_Dimms ++; |
| } |
| } |
| if ((Speed & ((UINT32 *) Buffer)[0]) != 0) { |
| if ((((UINT8) (1 << (Dimms - 1)) & Buffer[4]) != 0) || (Buffer[4] == ANY_NUM)) { |
| if (((QR_Dimms == 0) && (Buffer[5] == NO_DIMM)) || |
| ((QR_Dimms > 0) && (((UINT8) (1 << (QR_Dimms - 1)) & Buffer[5]) != 0)) || |
| (Buffer[5] == ANY_NUM)) { |
| NBPtr->PsPtr->DramTerm = Buffer[6]; |
| NBPtr->PsPtr->QR_DramTerm = Buffer[7]; |
| NBPtr->PsPtr->DynamicDramTerm = Buffer[8]; |
| Result = TRUE; |
| IDS_HDT_CONSOLE (MEM_FLOW, " Platform Override: DramTerm:%02x, QRDramTerm:%02x, DynDramTerm:%02x\n", Buffer[6], Buffer[7], Buffer[8]); |
| } |
| } |
| } |
| return Result; |
| } |
| |
| /* -----------------------------------------------------------------------------*/ |
| /** |
| * Perform Address Timing Platform Override |
| * |
| * @param[in] NBPtr - Pointer to Current NBBlock |
| * @param[in] Buffer - Pointer to the Action Command Data (w/o Type and Len) |
| * |
| * @return BOOLEAN - TRUE : Action was performed |
| * FALSE: Action was not performed |
| * |
| * ---------------------------------------------------------------------------- |
| */ |
| BOOLEAN |
| STATIC |
| MemPSODoActionAddrTmg ( |
| IN OUT MEM_NB_BLOCK *NBPtr, |
| IN UINT8 *Buffer |
| ) |
| { |
| BOOLEAN Result; |
| CH_DEF_STRUCT *ChannelPtr; |
| UINT32 Speed; |
| UINT16 DimmConfig; |
| |
| Result = FALSE; |
| ChannelPtr = NBPtr->ChannelPtr; |
| Speed = ((UINT32) 1 << (NBPtr->DCTPtr->Timings.Speed / 66)); |
| DimmConfig = *(UINT16 *) &(Buffer[4]); |
| |
| if ((Speed & ((UINT32 *) Buffer)[0]) != 0) { |
| if (MemCheckRankType (ChannelPtr, DimmConfig)) { |
| ChannelPtr->DctAddrTmg = *(UINT32*) &(Buffer[6]); |
| Result = TRUE; |
| IDS_HDT_CONSOLE (MEM_FLOW, " Platform Override: Address Timing:%08x\n", *(UINT32*) &(Buffer[6])); |
| } |
| } |
| return Result; |
| } |
| |
| /* -----------------------------------------------------------------------------*/ |
| /** |
| * Perform Drive Strength Platform Override |
| * |
| * @param[in] NBPtr - Pointer to Current NBBlock |
| * @param[in] Buffer - Pointer to the Action Command Data (w/o Type and Len) |
| * |
| * @return BOOLEAN - TRUE : Action was performed |
| * FALSE: Action was not performed |
| * |
| * ---------------------------------------------------------------------------- |
| */ |
| BOOLEAN |
| STATIC |
| MemPSODoActionODCControl ( |
| IN OUT MEM_NB_BLOCK *NBPtr, |
| IN UINT8 *Buffer |
| ) |
| { |
| BOOLEAN Result; |
| CH_DEF_STRUCT *ChannelPtr; |
| UINT32 Speed; |
| UINT16 DimmConfig; |
| |
| Result = FALSE; |
| ChannelPtr = NBPtr->ChannelPtr; |
| Speed = ((UINT32) 1 << (NBPtr->DCTPtr->Timings.Speed / 66)); |
| DimmConfig = *(UINT16 *) &(Buffer[4]); |
| |
| if ((Speed & ((UINT32 *) Buffer)[0]) != 0) { |
| if (MemCheckRankType (ChannelPtr, DimmConfig)) { |
| ChannelPtr->DctOdcCtl = *(UINT32*) &(Buffer[6]); |
| Result = TRUE; |
| IDS_HDT_CONSOLE (MEM_FLOW, " Platform Override: ODC Control:%08x\n", *(UINT32*)&(Buffer[6])); |
| } |
| } |
| return Result; |
| } |
| |
| /* -----------------------------------------------------------------------------*/ |
| /** |
| * Perform Slew Rate Platform Override |
| * |
| * @param[in] NBPtr - Pointer to Current NBBlock |
| * @param[in] Buffer - Pointer to the Action Command Data (w/o Type and Len) |
| * |
| * @return BOOLEAN - TRUE : Action was performed |
| * FALSE: Action was not performed |
| * |
| * ---------------------------------------------------------------------------- |
| */ |
| BOOLEAN |
| STATIC |
| MemPSODoActionSlewRate ( |
| IN OUT MEM_NB_BLOCK *NBPtr, |
| IN UINT8 *Buffer |
| ) |
| { |
| BOOLEAN Result; |
| CH_DEF_STRUCT *ChannelPtr; |
| UINT32 Speed; |
| UINT16 DimmConfig; |
| |
| Result = FALSE; |
| ChannelPtr = NBPtr->ChannelPtr; |
| Speed = ((UINT32) 1 << (NBPtr->DCTPtr->Timings.Speed / 66)); |
| DimmConfig = *(UINT16 *) &(Buffer[4]); |
| |
| if ((Speed & ((UINT32 *) Buffer)[0]) != 0) { |
| if (MemCheckRankType (ChannelPtr, DimmConfig)) { |
| MemNSetBitFieldNb (NBPtr, BFD3Cmp0NCal, ((D3_CMP_CAL *) &(Buffer[6]))->D3Cmp0NCal ); |
| MemNSetBitFieldNb (NBPtr, BFD3Cmp0PCal, ((D3_CMP_CAL *) &(Buffer[6]))->D3Cmp0PCal ); |
| MemNSetBitFieldNb (NBPtr, BFD3Cmp1NCal, ((D3_CMP_CAL *) &(Buffer[6]))->D3Cmp1NCal ); |
| MemNSetBitFieldNb (NBPtr, BFD3Cmp1PCal, ((D3_CMP_CAL *) &(Buffer[6]))->D3Cmp1PCal ); |
| MemNSetBitFieldNb (NBPtr, BFD3Cmp2NCal, ((D3_CMP_CAL *) &(Buffer[6]))->D3Cmp2NCal ); |
| MemNSetBitFieldNb (NBPtr, BFD3Cmp2PCal, ((D3_CMP_CAL *) &(Buffer[6]))->D3Cmp2PCal ); |
| Result = TRUE; |
| IDS_HDT_CONSOLE (MEM_FLOW, " Platform Override: Slew Rate:%08x\n", *(UINT32 *) &(Buffer[6])); |
| } |
| } |
| return Result; |
| } |
| |
| /* -----------------------------------------------------------------------------*/ |
| /** |
| * |
| * This function overrides the POR supported speed for a specific config |
| * |
| * @param[in] NBPtr - Pointer to Current NBBlock |
| * @param[in] Buffer - Pointer to the Action Command Data (w/o Type and Len) |
| * |
| * @return BOOLEAN - TRUE : Action was performed |
| * FALSE: Action was not performed |
| * |
| */ |
| BOOLEAN |
| STATIC |
| MemPSODoActionGetFreqLimit ( |
| IN OUT MEM_NB_BLOCK *NBPtr, |
| IN UINT8 *Buffer |
| ) |
| { |
| BOOLEAN Result; |
| CH_DEF_STRUCT *ChannelPtr; |
| DCT_STRUCT *DCTPtr; |
| UINT16 DimmConfig; |
| UINT16 SpeedLimit; |
| |
| Result = FALSE; |
| ChannelPtr = NBPtr->ChannelPtr; |
| DCTPtr = NBPtr->DCTPtr; |
| DimmConfig = *(UINT16*) &(Buffer[0]); |
| SpeedLimit = 0; |
| // |
| // Match number of dimms, then Rank Type |
| // |
| if (ChannelPtr->Dimms == Buffer[2]) { |
| if (MemCheckRankType (ChannelPtr, DimmConfig)) { |
| // |
| // Select speed based on current voltage |
| // |
| if (NBPtr->RefPtr->DDR3Voltage == VOLT1_5) { |
| SpeedLimit = *(UINT16*) &(Buffer[3]); |
| } else if (NBPtr->RefPtr->DDR3Voltage == VOLT1_25) { |
| SpeedLimit = *(UINT16*) &(Buffer[7]); |
| } else { |
| SpeedLimit = *(UINT16*) &(Buffer[5]); |
| } |
| // |
| // Set the Speed limit |
| // |
| if (DCTPtr->Timings.TargetSpeed > SpeedLimit) { |
| DCTPtr->Timings.TargetSpeed = SpeedLimit; |
| } |
| Result = TRUE; |
| IDS_HDT_CONSOLE (MEM_FLOW, " Platform Override: Max Memory Speed for Channel %d: %d\n", NBPtr->Channel, SpeedLimit); |
| } |
| } |
| return Result; |
| } |
| |
| /* -----------------------------------------------------------------------------*/ |
| /** |
| * |
| * This function matches a particular Rank Type Mask to the installed |
| * DIMM configuration on the provided channel. |
| * |
| * @param[in] *CurrentChannel Pointer to CH_DEF_STRUCT |
| * @param[in] RankType Mask of rank type to match |
| * |
| * @return BOOLEAN - TRUE : Rank types match |
| * FALSE: Rank types do not match |
| * |
| */ |
| BOOLEAN |
| STATIC |
| MemCheckRankType ( |
| IN CH_DEF_STRUCT *CurrentChannel, |
| IN UINT16 RankType |
| ) |
| { |
| BOOLEAN Result; |
| UINT8 i; |
| UINT16 DIMMRankType; |
| |
| DIMMRankType = MemAGetPsRankType (CurrentChannel); |
| Result = TRUE; |
| for (i = 0; i < MAX_DIMMS_PER_CHANNEL; i++) { |
| if ( ((DIMMRankType & (0x0F << (i << 2))) + (RankType & (0x0F << (i << 2)))) != 0) { |
| Result &= (((DIMMRankType & (0x0F << (i << 2))) & ( RankType & ( 0x0F << ( i << 2)))) != 0); |
| } |
| if (!Result) { |
| break; |
| } |
| } |
| return Result; |
| } |