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/* $NoKeywords:$ */
/**
* @file
*
* mfrintlv.c
*
* Feature Region interleaving support
*
* @xrefitem bom "File Content Label" "Release Content"
* @e project: AGESA
* @e sub-project: (Mem/Feat/Intlvrgn)
* @e \$Revision: 38442 $ @e \$Date: 2010-09-24 06:39:57 +0800 (Fri, 24 Sep 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.
*
* ***************************************************************************
*
*/
/*
*----------------------------------------------------------------------------
* MODULES USED
*
*----------------------------------------------------------------------------
*/
#include "AGESA.h"
#include "amdlib.h"
#include "mport.h"
#include "mm.h"
#include "mn.h"
#include "mfintlvrn.h"
#include "Ids.h"
#include "Filecode.h"
CODE_GROUP (G2_PEI)
RDATA_GROUP (G2_PEI)
#define FILECODE PROC_MEM_FEAT_INTLVRN_MFINTLVRN_FILECODE
/*----------------------------------------------------------------------------
* DEFINITIONS AND MACROS
*
*----------------------------------------------------------------------------
*/
#define _4GB_RJ27 ((UINT32)4 << (30 - 27))
/*----------------------------------------------------------------------------
* TYPEDEFS AND STRUCTURES
*
*----------------------------------------------------------------------------
*/
/*----------------------------------------------------------------------------
* PROTOTYPES OF LOCAL FUNCTIONS
*
*----------------------------------------------------------------------------
*/
/*----------------------------------------------------------------------------
* EXPORTED FUNCTIONS
*
*----------------------------------------------------------------------------
*/
/* -----------------------------------------------------------------------------*/
/**
*
* MemFInterleaveRegion:
*
* Applies region interleaving if both DCTs have different size of memory, and
* the channel interleaving region doesn't have UMA covered.
*
* @param[in,out] *NBPtr - Pointer to the MEM_NB_BLOCK
*
*/
VOID
MemFInterleaveRegion (
IN OUT MEM_NB_BLOCK *NBPtr
)
{
UINT32 TOM;
UINT32 TOM2;
UINT32 TOMused;
UINT32 UmaBase;
UINT32 DctSelBase;
S_UINT64 SMsr;
MEM_DATA_STRUCT *MemPtr;
MEM_PARAMETER_STRUCT *RefPtr;
DIE_STRUCT *MCTPtr;
MemPtr = NBPtr->MemPtr;
RefPtr = NBPtr->RefPtr;
MCTPtr = NBPtr->MCTPtr;
UmaBase = (UINT32) RefPtr->UmaBase >> (27 - 16);
//TOM scaled from [47:0] to [47:27]
LibAmdMsrRead (TOP_MEM, (UINT64 *)&SMsr, &MemPtr->StdHeader);
TOM = (SMsr.lo >> 27) | (SMsr.hi << (32 - 27));
//TOM2 scaled from [47:0] to [47:27]
LibAmdMsrRead (TOP_MEM2, (UINT64 *)&SMsr, &MemPtr->StdHeader);
TOM2 = (SMsr.lo >> 27) | (SMsr.hi << (32 - 27));
TOMused = (UmaBase >= _4GB_RJ27) ? TOM2 : TOM;
if (UmaBase != 0) {
//Check if channel interleaving is enabled ? if so, go to next step.
if (NBPtr->GetBitField (NBPtr, BFDctSelIntLvEn) == 1) {
DctSelBase = NBPtr->GetBitField (NBPtr, BFDctSelBaseAddr);
//Skip if DctSelBase is equal to 0, because DCT0 has as the same memory size as DCT1.
if (DctSelBase != 0) {
//We need not enable swapped interleaved region when channel interleaving region has covered all of the UMA.
if (DctSelBase < TOMused) {
NBPtr->EnableSwapIntlvRgn (NBPtr, UmaBase, TOMused);
}
}
}
}
}
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