7 * Feature EMP initialization functions
9 * @xrefitem bom "File Content Label" "Release Content"
11 * @e sub-project: (Mem/Feat/ECC)
12 * @e \$Revision: 53955 $ @e \$Date: 2011-05-29 20:54:54 -0600 (Sun, 29 May 2011) $
15 /*****************************************************************************
17 * Copyright (C) 2012 Advanced Micro Devices, Inc.
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42 * ***************************************************************************
53 #include "GeneralServices.h"
58 #define FILECODE PROC_MEM_FEAT_ECC_MFEMP_FILECODE
59 /*----------------------------------------------------------------------------
60 * DEFINITIONS AND MACROS
62 *----------------------------------------------------------------------------
65 /*----------------------------------------------------------------------------
66 * TYPEDEFS AND STRUCTURES
68 *----------------------------------------------------------------------------
71 /*----------------------------------------------------------------------------
72 * PROTOTYPES OF LOCAL FUNCTIONS
74 *----------------------------------------------------------------------------
84 IN OUT MEM_NB_BLOCK *NBPtr
88 *-----------------------------------------------------------------------------
91 *-----------------------------------------------------------------------------
94 extern BUILD_OPT_CFG UserOptions;
96 /* -----------------------------------------------------------------------------*/
100 * This function initializes EMP (Enhanced Memory Protection)
102 * @param[in,out] *NBPtr - Pointer to the MEM_NB_BLOCK
104 * @return TRUE - This feature is enabled.
105 * @return FALSE - This feature is not enabled.
110 IN OUT MEM_NB_BLOCK *NBPtr
113 MEM_PARAMETER_STRUCT *RefPtr;
116 ASSERT (NBPtr != NULL);
118 RefPtr = NBPtr->RefPtr;
119 MCTPtr = NBPtr->MCTPtr;
120 if (RefPtr->EnableEccFeature) {
121 if (NBPtr->GetBitField (NBPtr, BFEnhMemProtCap) == 0) {
122 PutEventLog (AGESA_WARNING, MEM_WARNING_EMP_NOT_SUPPORTED, 0, 0, 0, 0, &NBPtr->MemPtr->StdHeader);
123 MCTPtr->ErrStatus[EsbEMPNotSupported] = TRUE;
124 } else if (RefPtr->EnableChannelIntlv || RefPtr->EnableBankIntlv || RefPtr->EnableBankSwizzle) {
125 PutEventLog (AGESA_WARNING, MEM_WARNING_EMP_CONFLICT, 0, 0, 0, 0, &NBPtr->MemPtr->StdHeader);
126 MCTPtr->ErrStatus[EsbEMPConflict] = TRUE;
127 } else if ((!MCTPtr->GangedMode) &&
128 (!IsPowerOfTwo (MCTPtr->DctData[0].Timings.DctMemSize) &&
129 !IsPowerOfTwo (MCTPtr->DctData[1].Timings.DctMemSize))) {
130 PutEventLog (AGESA_WARNING, MEM_WARNING_EMP_NOT_ENABLED, 0, 0, 0, 0, &NBPtr->MemPtr->StdHeader);
131 MCTPtr->ErrStatus[EsbEMPDis] = TRUE;
133 // Reduce memory size to 7/8 of the original memory size
134 ASSERT ((MCTPtr->NodeMemSize % 8) == 0);
135 NBPtr->SetBitField (NBPtr, BFDramHoleValid, 0);
136 MCTPtr->NodeMemSize = (MCTPtr->NodeMemSize / 8) * 7;
137 NBPtr->HtMemMapInit (NBPtr);
138 NBPtr->CpuMemTyping (NBPtr);
141 NBPtr->SetBitField (NBPtr, BFDramEccEn, 1);
143 // Scrub CTL settings for Dcache, L2
144 NBPtr->SetBitField (NBPtr, BFL2Scrub, UserOptions.CfgScrubL2Rate);
145 NBPtr->SetBitField (NBPtr, BFDcacheScrub, UserOptions.CfgScrubDcRate);
147 NBPtr->SetBitField (NBPtr, BFSyncOnUcEccEn, UserOptions.CfgEccSyncFlood);
154 /*----------------------------------------------------------------------------
157 *----------------------------------------------------------------------------
160 /* -----------------------------------------------------------------------------*/
164 * This function checks to see if the input is power of two.
166 * @param[in] TestNumber - Value to check for power of two
168 * @return TRUE - is power of two
169 * FALSE - is not power of two
177 return (BOOLEAN) ((TestNumber & (TestNumber - 1)) == 0);