--- /dev/null
+/**
+ * @file
+ *
+ * mfemp.c
+ *
+ * Feature EMP initialization functions
+ *
+ * @xrefitem bom "File Content Label" "Release Content"
+ * @e project: AGESA
+ * @e sub-project: (Mem/Feat/ECC)
+ * @e \$Revision: 6168 $ @e \$Date: 2008-05-28 22:26:15 -0500 (Wed, 28 May 2008) $
+ *
+ **/
+/*****************************************************************************
+ *
+ * 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 "Ids.h"
+#include "GeneralServices.h"
+#include "Filecode.h"
+#define FILECODE PROC_MEM_FEAT_ECC_MFEMP_FILECODE
+/*----------------------------------------------------------------------------
+ * DEFINITIONS AND MACROS
+ *
+ *----------------------------------------------------------------------------
+ */
+
+/*----------------------------------------------------------------------------
+ * TYPEDEFS AND STRUCTURES
+ *
+ *----------------------------------------------------------------------------
+ */
+
+/*----------------------------------------------------------------------------
+ * PROTOTYPES OF LOCAL FUNCTIONS
+ *
+ *----------------------------------------------------------------------------
+ */
+BOOLEAN
+STATIC
+IsPowerOfTwo (
+ IN UINT32 Value
+ );
+
+/*
+ *-----------------------------------------------------------------------------
+ * EXPORTED FUNCTIONS
+ *
+ *-----------------------------------------------------------------------------
+ */
+BOOLEAN
+MemFInitEMP (
+ IN OUT MEM_NB_BLOCK *NBPtr
+ );
+
+extern BUILD_OPT_CFG UserOptions;
+
+/* -----------------------------------------------------------------------------*/
+/**
+ *
+ *
+ * This function initializes EMP (Enhanced Memory Protection)
+ *
+ * @param[in,out] *NBPtr - Pointer to the MEM_NB_BLOCK
+ *
+ * @return TRUE - This feature is enabled.
+ * @return FALSE - This feature is not enabled.
+ */
+
+BOOLEAN
+MemFInitEMP (
+ IN OUT MEM_NB_BLOCK *NBPtr
+ )
+{
+ MEM_PARAMETER_STRUCT *RefPtr;
+ DIE_STRUCT *MCTPtr;
+
+ ASSERT (NBPtr != NULL);
+
+ RefPtr = NBPtr->RefPtr;
+ MCTPtr = NBPtr->MCTPtr;
+ if (RefPtr->EnableEccFeature) {
+ if (NBPtr->GetBitField (NBPtr, BFEnhMemProtCap) == 0) {
+ PutEventLog (AGESA_WARNING, MEM_WARNING_EMP_NOT_SUPPORTED, 0, 0, 0, 0, &NBPtr->MemPtr->StdHeader);
+ MCTPtr->ErrStatus[EsbEMPNotSupported] = TRUE;
+ } else if (RefPtr->EnableChannelIntlv || RefPtr->EnableBankIntlv || RefPtr->EnableBankSwizzle) {
+ PutEventLog (AGESA_WARNING, MEM_WARNING_EMP_CONFLICT, 0, 0, 0, 0, &NBPtr->MemPtr->StdHeader);
+ MCTPtr->ErrStatus[EsbEMPConflict] = TRUE;
+ } else if ((!MCTPtr->GangedMode) &&
+ (!IsPowerOfTwo (MCTPtr->DctData[0].Timings.DctMemSize) &&
+ !IsPowerOfTwo (MCTPtr->DctData[1].Timings.DctMemSize))) {
+ PutEventLog (AGESA_WARNING, MEM_WARNING_EMP_NOT_ENABLED, 0, 0, 0, 0, &NBPtr->MemPtr->StdHeader);
+ MCTPtr->ErrStatus[EsbEMPDis] = TRUE;
+ } else {
+ // Reduce memory size to 7/8 of the original memory size
+ ASSERT ((MCTPtr->NodeMemSize % 8) == 0);
+ NBPtr->SetBitField (NBPtr, BFDramHoleValid, 0);
+ MCTPtr->NodeMemSize = (MCTPtr->NodeMemSize / 8) * 7;
+ NBPtr->HtMemMapInit (NBPtr);
+ NBPtr->CpuMemTyping (NBPtr);
+
+ // Enable EMP
+ NBPtr->SetBitField (NBPtr, BFDramEccEn, 1);
+
+ // Scrub CTL settings for Dcache, L2
+ NBPtr->SetBitField (NBPtr, BFL2Scrub, UserOptions.CfgScrubL2Rate);
+ NBPtr->SetBitField (NBPtr, BFDcacheScrub, UserOptions.CfgScrubDcRate);
+
+ NBPtr->SetBitField (NBPtr, BFSyncOnUcEccEn, UserOptions.CfgEccSyncFlood);
+ return TRUE;
+ }
+ }
+ return FALSE;
+}
+
+/*----------------------------------------------------------------------------
+ * LOCAL FUNCTIONS
+ *
+ *----------------------------------------------------------------------------
+ */
+
+/* -----------------------------------------------------------------------------*/
+/**
+ *
+ *
+ * This function checks to see if the input is power of two.
+ *
+ * @param[in] Value - Value to check for power of two
+ *
+ * @return TRUE - is power of two
+ * FALSE - is not power of two
+ */
+BOOLEAN
+STATIC
+IsPowerOfTwo (
+ IN UINT32 Value
+ )
+{
+ return (BOOLEAN) ((Value & (Value - 1)) == 0);
+}
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