5 * AMD CPU Feature Leveling Function.
7 * Contains code to Level the Feature in a multi-socket system
9 * @xrefitem bom "File Content Label" "Release Content"
12 * @e \$Revision: 56279 $ @e \$Date: 2011-07-11 13:11:28 -0600 (Mon, 11 Jul 2011) $
16 ******************************************************************************
18 * Copyright (C) 2012 Advanced Micro Devices, Inc.
19 * All rights reserved.
21 * Redistribution and use in source and binary forms, with or without
22 * modification, are permitted provided that the following conditions are met:
23 * * Redistributions of source code must retain the above copyright
24 * notice, this list of conditions and the following disclaimer.
25 * * Redistributions in binary form must reproduce the above copyright
26 * notice, this list of conditions and the following disclaimer in the
27 * documentation and/or other materials provided with the distribution.
28 * * Neither the name of Advanced Micro Devices, Inc. nor the names of
29 * its contributors may be used to endorse or promote products derived
30 * from this software without specific prior written permission.
32 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
33 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
34 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
35 * DISCLAIMED. IN NO EVENT SHALL ADVANCED MICRO DEVICES, INC. BE LIABLE FOR ANY
36 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
37 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
38 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
39 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
40 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
41 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
43 ******************************************************************************
44 *----------------------------------------------------------------------------
49 *----------------------------------------------------------------------------
52 *----------------------------------------------------------------------------
56 #include "cpuRegisters.h"
57 #include "GeneralServices.h"
58 #include "cpuServices.h"
59 #include "cpuPostInit.h"
60 #include "cpuApicUtilities.h"
61 #include "cpuFamilyTranslation.h"
66 #define FILECODE PROC_CPU_FEATURE_CPUFEATURELEVELING_FILECODE
67 /*----------------------------------------------------------------------------
68 * DEFINITIONS AND MACROS
70 *----------------------------------------------------------------------------
74 /*----------------------------------------------------------------------------
75 * TYPEDEFS AND STRUCTURES
77 *----------------------------------------------------------------------------
80 /*----------------------------------------------------------------------------------------
81 * E X P O R T E D F U N C T I O N S
82 *----------------------------------------------------------------------------------------
85 /*----------------------------------------------------------------------------
86 * PROTOTYPES OF LOCAL FUNCTIONS
88 *----------------------------------------------------------------------------
93 IN OUT VOID *cpuFeatureListPtr,
94 IN OUT AMD_CONFIG_PARAMS *StdHeader
100 IN OUT VOID *cpuFeatureListPtr,
101 IN OUT AMD_CONFIG_PARAMS *StdHeader
106 GetGlobalCpuFeatureListAddress (
107 OUT UINT64 **Address,
108 IN AMD_CONFIG_PARAMS *StdHeader
111 /*----------------------------------------------------------------------------------------
112 * P U B L I C F U N C T I O N S
113 *----------------------------------------------------------------------------------------
116 /* -----------------------------------------------------------------------------*/
121 * CPU feature leveling. Set least common features set of all CPUs
123 * @param[in,out] StdHeader - Pointer to AMD_CONFIG_PARAMS struct.
128 IN OUT AMD_CONFIG_PARAMS *StdHeader
136 UINT32 NumberOfSockets;
137 UINT32 NumberOfCores;
139 BOOLEAN *NeedLeveling;
140 AGESA_STATUS IgnoredSts;
141 CPU_FEATURES_LIST *globalCpuFeatureList;
144 ASSERT (IsBsp (StdHeader, &IgnoredSts));
146 GetGlobalCpuFeatureListAddress ((UINT64 **) &globalCpuFeatureList, StdHeader);
147 FirstTime = (BOOLEAN *) ((UINT8 *) globalCpuFeatureList + sizeof (CPU_FEATURES_LIST));
148 NeedLeveling = (BOOLEAN *) ((UINT8 *) globalCpuFeatureList + sizeof (CPU_FEATURES_LIST) + sizeof (BOOLEAN));
151 *NeedLeveling = FALSE;
153 LibAmdMemFill (globalCpuFeatureList, 0xFF, sizeof (CPU_FEATURES_LIST), StdHeader);
154 IdentifyCore (StdHeader, &BscSocket, &Ignored, &BscCoreNum, &IgnoredSts);
155 NumberOfSockets = GetPlatformNumberOfSockets ();
157 TaskPtr.FuncAddress.PfApTaskI = SaveFeatures;
158 TaskPtr.DataTransfer.DataSizeInDwords = SIZE_IN_DWORDS (CPU_FEATURES_LIST);
159 TaskPtr.ExeFlags = WAIT_FOR_CORE;
160 TaskPtr.DataTransfer.DataPtr = globalCpuFeatureList;
161 TaskPtr.DataTransfer.DataTransferFlags = DATA_IN_MEMORY;
163 for (Socket = 0; Socket < NumberOfSockets; Socket++) {
164 if (IsProcessorPresent (Socket, StdHeader)) {
165 if (Socket != BscSocket) {
166 ApUtilRunCodeOnSocketCore ((UINT8)Socket, 0, &TaskPtr, StdHeader);
170 ApUtilTaskOnExecutingCore (&TaskPtr, StdHeader, NULL);
173 TaskPtr.FuncAddress.PfApTaskI = WriteFeatures;
174 for (Socket = 0; Socket < NumberOfSockets; Socket++) {
175 if (GetActiveCoresInGivenSocket (Socket, &NumberOfCores, StdHeader)) {
176 for (Core = 0; Core < NumberOfCores; Core++) {
177 if ((Socket != BscSocket) || (Core != BscCoreNum)) {
178 ApUtilRunCodeOnSocketCore ((UINT8)Socket, (UINT8)Core, &TaskPtr, StdHeader);
183 ApUtilTaskOnExecutingCore (&TaskPtr, StdHeader, NULL);
187 /*----------------------------------------------------------------------------------------
188 * L O C A L F U N C T I O N S
189 *----------------------------------------------------------------------------------------
192 /* -----------------------------------------------------------------------------*/
197 * save least common features set of all CPUs
199 * @param[in,out] cpuFeatureListPtr - Pointer to CPU Feature List.
200 * @param[in,out] StdHeader - Pointer to AMD_CONFIG_PARAMS struct.
206 IN OUT VOID *cpuFeatureListPtr,
207 IN OUT AMD_CONFIG_PARAMS *StdHeader
210 CPU_SPECIFIC_SERVICES *FamilySpecificServices;
211 FamilySpecificServices = NULL;
213 GetCpuServicesOfCurrentCore ((CONST CPU_SPECIFIC_SERVICES **)&FamilySpecificServices, StdHeader);
214 FamilySpecificServices->SaveFeatures (FamilySpecificServices, cpuFeatureListPtr, StdHeader);
217 /* -----------------------------------------------------------------------------*/
222 * Write out least common features set of all CPUs
224 * @param[in,out] cpuFeatureListPtr - Pointer to CPU Feature List.
225 * @param[in,out] StdHeader - Pointer to AMD_CONFIG_PARAMS struct.
231 IN OUT VOID *cpuFeatureListPtr,
232 IN OUT AMD_CONFIG_PARAMS *StdHeader
235 CPU_SPECIFIC_SERVICES *FamilySpecificServices;
236 FamilySpecificServices = NULL;
238 GetCpuServicesOfCurrentCore ((CONST CPU_SPECIFIC_SERVICES **)&FamilySpecificServices, StdHeader);
239 FamilySpecificServices->WriteFeatures (FamilySpecificServices, cpuFeatureListPtr, StdHeader);
242 /*---------------------------------------------------------------------------------------*/
245 * GetGlobalCpuFeatureListAddress
247 * Determines the address in system DRAM that should be used for CPU feature leveling.
249 * @param[out] Address Address to utilize
250 * @param[in] StdHeader Config handle for library and services
256 GetGlobalCpuFeatureListAddress (
257 OUT UINT64 **Address,
258 IN AMD_CONFIG_PARAMS *StdHeader
263 AddressValue = GLOBAL_CPU_FEATURE_LIST_TEMP_ADDR;
265 *Address = (UINT64 *)(AddressValue);