| /* $NoKeywords:$ */ |
| /** |
| * @file |
| * |
| * mfmemclr.c |
| * |
| * Feature function for memory clear operation |
| * |
| * @xrefitem bom "File Content Label" "Release Content" |
| * @e project: AGESA |
| * @e sub-project: (Mem/Feat/Memclr) |
| * @e \$Revision: 44324 $ @e \$Date: 2010-12-22 17:16:51 +0800 (Wed, 22 Dec 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 "mfmemclr.h" |
| #include "Ids.h" |
| #include "merrhdl.h" |
| #include "Filecode.h" |
| CODE_GROUP (G2_PEI) |
| RDATA_GROUP (G2_PEI) |
| |
| #define FILECODE PROC_MEM_FEAT_MEMCLR_MFMEMCLR_FILECODE |
| /*---------------------------------------------------------------------------- |
| * DEFINITIONS AND MACROS |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| |
| /*---------------------------------------------------------------------------- |
| * TYPEDEFS AND STRUCTURES |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| |
| /*---------------------------------------------------------------------------- |
| * PROTOTYPES OF LOCAL FUNCTIONS |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| |
| /* |
| *----------------------------------------------------------------------------- |
| * EXPORTED FUNCTIONS |
| * |
| *----------------------------------------------------------------------------- |
| */ |
| |
| /* -----------------------------------------------------------------------------*/ |
| /** |
| * |
| * |
| * Initiates memory clear operation on one node with Dram on it. |
| * |
| * @param[in,out] *NBPtr - Pointer to the MEM_NB_BLOCK |
| * |
| */ |
| |
| BOOLEAN |
| MemFMctMemClr_Init ( |
| IN OUT MEM_NB_BLOCK *NBPtr |
| ) |
| { |
| AGESA_TESTPOINT (TpProcMemMemClr, &NBPtr->MemPtr->StdHeader); |
| if (NBPtr->RefPtr->EnableMemClr == TRUE) { |
| if (NBPtr->MCTPtr->NodeMemSize != 0) { |
| if (!NBPtr->MemCleared) { |
| NBPtr->PollBitField (NBPtr, BFMemClrBusy, 0, SPECIAL_PCI_ACCESS_TIMEOUT, FALSE); |
| if (NBPtr->GetBitField (NBPtr, BFDramEnabled) == 1) { |
| NBPtr->FamilySpecificHook[BeforeMemClr] (NBPtr, NBPtr); |
| NBPtr->SetBitField (NBPtr, BFDramBaseAddr, 0); |
| NBPtr->SetBitField (NBPtr, BFMemClrInit, 1); |
| } |
| } |
| } |
| } |
| return TRUE; |
| } |
| |
| /* -----------------------------------------------------------------------------*/ |
| /** |
| * |
| * |
| * Ensures memory clear operation has completed on one node with Dram on it. |
| * |
| * @param[in,out] *NBPtr - Pointer to the MEM_NB_BLOCK |
| * |
| */ |
| |
| BOOLEAN |
| MemFMctMemClr_Sync ( |
| IN OUT MEM_NB_BLOCK *NBPtr |
| ) |
| { |
| UINT32 MicroSecondToWait; |
| |
| MicroSecondToWait = 0; |
| if (NBPtr->RefPtr->EnableMemClr == TRUE) { |
| if (NBPtr->MCTPtr->NodeMemSize != 0) { |
| // Calculate Timeout value: |
| // Timeout (in microsecond) = Memory Size * 1.5 ns / 8 Byte * 4 (Margin) * 1000 (change millisecond to us) |
| // NodeMemSize is system address right shifted by 16, so shift it 4 bits to right to convert it to MB. |
| // 1.5 / 8 * 4 * 1000 = 750 |
| MicroSecondToWait = (NBPtr->MCTPtr->NodeMemSize >> 4) * 750; |
| |
| if (!NBPtr->MemCleared) { |
| NBPtr->PollBitField (NBPtr, BFMemClrBusy, 0, MicroSecondToWait, FALSE); |
| NBPtr->PollBitField (NBPtr, BFMemCleared, 1, MicroSecondToWait, FALSE); |
| NBPtr->SetBitField (NBPtr, BFDramBaseAddr, NBPtr->MCTPtr->NodeSysBase >> (27 - 16)); |
| NBPtr->MemCleared = TRUE; |
| } |
| } |
| } |
| return TRUE; |
| } |
| |