5 * AMD AGESA CPU Application Power Management (APM) feature support code.
7 * Contains code that declares the AGESA CPU APM related APIs
9 * @xrefitem bom "File Content Label" "Release Content"
11 * @e sub-project: CPU/Feature
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
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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
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41 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
43 ******************************************************************************
46 /*----------------------------------------------------------------------------------------
47 * M O D U L E S U S E D
48 *----------------------------------------------------------------------------------------
51 #include "GeneralServices.h"
52 #include "cpuFamilyTranslation.h"
53 #include "cpuApicUtilities.h"
54 #include "cpuFeatures.h"
60 #define FILECODE PROC_CPU_FEATURE_CPUAPM_FILECODE
62 /*----------------------------------------------------------------------------------------
63 * D E F I N I T I O N S A N D M A C R O S
64 *----------------------------------------------------------------------------------------
67 /*----------------------------------------------------------------------------------------
68 * T Y P E D E F S A N D S T R U C T U R E S
69 *----------------------------------------------------------------------------------------
72 /*----------------------------------------------------------------------------------------
73 * P R O T O T Y P E S O F L O C A L F U N C T I O N S
74 *----------------------------------------------------------------------------------------
79 IN VOID *PlatformConfig,
80 IN AMD_CONFIG_PARAMS *StdHeader
83 /*----------------------------------------------------------------------------------------
84 * E X P O R T E D F U N C T I O N S
85 *----------------------------------------------------------------------------------------
87 extern CPU_FAMILY_SUPPORT_TABLE ApmFamilyServiceTable;
89 /*---------------------------------------------------------------------------------------*/
91 * Should Application Power Management (APM) be enabled
93 * @param[in] PlatformConfig Contains the runtime modifiable feature input data.
94 * @param[in] StdHeader Config Handle for library, services.
96 * @retval TRUE APM is supported.
97 * @retval FALSE APM cannot be enabled.
102 IsApmFeatureEnabled (
103 IN PLATFORM_CONFIGURATION *PlatformConfig,
104 IN AMD_CONFIG_PARAMS *StdHeader
109 APM_FAMILY_SERVICES *FamilyServices;
113 for (Socket = 0; Socket < GetPlatformNumberOfSockets (); Socket++) {
114 if (IsProcessorPresent (Socket, StdHeader)) {
115 GetFeatureServicesOfSocket (&ApmFamilyServiceTable, Socket, (CONST VOID **)&FamilyServices, StdHeader);
116 if (FamilyServices != NULL) {
117 if (FamilyServices->IsApmSupported (FamilyServices, PlatformConfig, Socket, StdHeader)) {
127 /*---------------------------------------------------------------------------------------*/
129 * Enable Application Power Management (APM)
131 * @param[in] EntryPoint Timepoint designator.
132 * @param[in] PlatformConfig Contains the runtime modifiable feature input data.
133 * @param[in] StdHeader Config Handle for library, services.
135 * @retval AGESA_SUCCESS Always succeeds.
140 InitializeApmFeature (
141 IN UINT64 EntryPoint,
142 IN PLATFORM_CONFIGURATION *PlatformConfig,
143 IN AMD_CONFIG_PARAMS *StdHeader
149 UINT32 NumberOfSockets;
151 AGESA_STATUS IgnoredSts;
153 IDS_HDT_CONSOLE (CPU_TRACE, " APM mode is enabled\n");
155 IdentifyCore (StdHeader, &BscSocket, &Ignored, &Ignored, &IgnoredSts);
156 NumberOfSockets = GetPlatformNumberOfSockets ();
158 TaskPtr.FuncAddress.PfApTaskI = EnableApmOnSocket;
159 TaskPtr.DataTransfer.DataSizeInDwords = 2;
160 TaskPtr.DataTransfer.DataPtr = PlatformConfig;
161 TaskPtr.DataTransfer.DataTransferFlags = 0;
162 TaskPtr.ExeFlags = WAIT_FOR_CORE;
164 for (Socket = 0; Socket < NumberOfSockets; Socket++) {
165 if (IsProcessorPresent (Socket, StdHeader)) {
166 if (Socket != BscSocket) {
167 ApUtilRunCodeOnSocketCore ((UINT8) Socket, 0, &TaskPtr, StdHeader);
172 EnableApmOnSocket (PlatformConfig, StdHeader);
173 return AGESA_SUCCESS;
176 /*---------------------------------------------------------------------------------------*/
178 * AP task to enable APM
180 * @param[in] PlatformConfig Contains the runtime modifiable feature input data.
181 * @param[in] StdHeader Config Handle for library, services.
187 IN VOID *PlatformConfig,
188 IN AMD_CONFIG_PARAMS *StdHeader
191 APM_FAMILY_SERVICES *FamilyServices;
193 GetFeatureServicesOfCurrentCore (&ApmFamilyServiceTable, (CONST VOID **)&FamilyServices, StdHeader);
194 FamilyServices->EnableApmOnSocket (FamilyServices,
199 CONST CPU_FEATURE_DESCRIPTOR ROMDATA CpuFeatureApm =
202 (CPU_FEAT_BEFORE_RELINQUISH_AP | CPU_FEAT_AFTER_RESUME_MTRR_SYNC),