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/* $NoKeywords:$ */
/**
* @file
*
* AMD AGESA CPU C6 feature support code.
*
* Contains code that declares the AGESA CPU C6 related APIs
*
* @xrefitem bom "File Content Label" "Release Content"
* @e project: AGESA
* @e sub-project: CPU/Feature
* @e \$Revision: 56279 $ @e \$Date: 2011-07-11 13:11:28 -0600 (Mon, 11 Jul 2011) $
*
*/
/*
******************************************************************************
*
* Copyright (C) 2012 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.
*
******************************************************************************
*/
/*----------------------------------------------------------------------------------------
* M O D U L E S U S E D
*----------------------------------------------------------------------------------------
*/
#include "AGESA.h"
#include "amdlib.h"
#include "Ids.h"
#include "cpuRegisters.h"
#include "cpuEarlyInit.h"
#include "GeneralServices.h"
#include "cpuFamilyTranslation.h"
#include "OptionMultiSocket.h"
#include "cpuApicUtilities.h"
#include "cpuServices.h"
#include "cpuFeatures.h"
#include "cpuC6State.h"
#include "Filecode.h"
CODE_GROUP (G1_PEICC)
RDATA_GROUP (G2_PEI)
#define FILECODE PROC_CPU_FEATURE_CPUC6STATE_FILECODE
/*----------------------------------------------------------------------------------------
* D E F I N I T I O N S A N D M A C R O S
*----------------------------------------------------------------------------------------
*/
/*----------------------------------------------------------------------------------------
* T Y P E D E F S A N D S T R U C T U R E S
*----------------------------------------------------------------------------------------
*/
/*----------------------------------------------------------------------------------------
* 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
*----------------------------------------------------------------------------------------
*/
VOID
STATIC
EnableC6OnSocket (
IN VOID *EntryPoint,
IN AMD_CONFIG_PARAMS *StdHeader,
IN AMD_CPU_EARLY_PARAMS *CpuEarlyParams
);
/*----------------------------------------------------------------------------------------
* E X P O R T E D F U N C T I O N S
*----------------------------------------------------------------------------------------
*/
extern CPU_FAMILY_SUPPORT_TABLE C6FamilyServiceTable;
extern OPTION_MULTISOCKET_CONFIGURATION OptionMultiSocketConfiguration;
/*---------------------------------------------------------------------------------------*/
/**
* Should C6 be enabled
*
* @param[in] PlatformConfig Contains the runtime modifiable feature input data.
* @param[in] StdHeader Config Handle for library, services.
*
* @retval TRUE C6 is supported.
* @retval FALSE C6 cannot be enabled.
*
*/
BOOLEAN
STATIC
IsC6FeatureEnabled (
IN PLATFORM_CONFIGURATION *PlatformConfig,
IN AMD_CONFIG_PARAMS *StdHeader
)
{
UINT32 Socket;
BOOLEAN IsEnabled;
C6_FAMILY_SERVICES *FamilyServices;
IsEnabled = FALSE;
if (PlatformConfig->CStateMode == CStateModeC6) {
IsEnabled = TRUE;
for (Socket = 0; Socket < GetPlatformNumberOfSockets (); Socket++) {
if (IsProcessorPresent (Socket, StdHeader)) {
GetFeatureServicesOfSocket (&C6FamilyServiceTable, Socket, (CONST VOID **)&FamilyServices, StdHeader);
if ((FamilyServices == NULL) || !FamilyServices->IsC6Supported (FamilyServices, Socket, PlatformConfig, StdHeader)) {
IsEnabled = FALSE;
break;
}
}
}
}
return IsEnabled;
}
/*---------------------------------------------------------------------------------------*/
/**
* Enable the C6 C-state
*
* @param[in] EntryPoint Timepoint designator.
* @param[in] PlatformConfig Contains the runtime modifiable feature input data.
* @param[in] StdHeader Config Handle for library, services.
*
* @retval AGESA_SUCCESS Always succeeds.
*
*/
AGESA_STATUS
STATIC
InitializeC6Feature (
IN UINT64 EntryPoint,
IN PLATFORM_CONFIGURATION *PlatformConfig,
IN AMD_CONFIG_PARAMS *StdHeader
)
{
UINT32 BscSocket;
UINT32 Ignored;
UINT32 BscCoreNum;
UINT32 Core;
UINT32 Socket;
UINT32 NumberOfSockets;
UINT32 NumberOfCores;
AP_TASK TaskPtr;
AMD_CPU_EARLY_PARAMS CpuEarlyParams;
C6_FAMILY_SERVICES *C6FamilyServices;
AGESA_STATUS IgnoredSts;
CpuEarlyParams.PlatformConfig = *PlatformConfig;
TaskPtr.FuncAddress.PfApTaskIC = EnableC6OnSocket;
TaskPtr.DataTransfer.DataSizeInDwords = 2;
TaskPtr.DataTransfer.DataPtr = &EntryPoint;
TaskPtr.DataTransfer.DataTransferFlags = 0;
TaskPtr.ExeFlags = PASS_EARLY_PARAMS;
OptionMultiSocketConfiguration.BscRunCodeOnAllSystemCore0s (&TaskPtr, StdHeader, &CpuEarlyParams);
if ((EntryPoint & (CPU_FEAT_AFTER_POST_MTRR_SYNC | CPU_FEAT_AFTER_RESUME_MTRR_SYNC)) != 0) {
// Load any required microcode patches on both normal boot and resume from S3.
IdentifyCore (StdHeader, &BscSocket, &Ignored, &BscCoreNum, &IgnoredSts);
GetFeatureServicesOfSocket (&C6FamilyServiceTable, BscSocket, (CONST VOID **)&C6FamilyServices, StdHeader);
if (C6FamilyServices != NULL) {
C6FamilyServices->ReloadMicrocodePatchAfterMemInit (StdHeader);
}
// run code on all APs
TaskPtr.DataTransfer.DataSizeInDwords = 0;
TaskPtr.ExeFlags = 0;
NumberOfSockets = GetPlatformNumberOfSockets ();
for (Socket = 0; Socket < NumberOfSockets; Socket++) {
if (IsProcessorPresent (Socket, StdHeader)) {
GetFeatureServicesOfSocket (&C6FamilyServiceTable, Socket, (CONST VOID **)&C6FamilyServices, StdHeader);
if (C6FamilyServices != NULL) {
// run code on all APs
TaskPtr.FuncAddress.PfApTask = C6FamilyServices->ReloadMicrocodePatchAfterMemInit;
if (GetActiveCoresInGivenSocket (Socket, &NumberOfCores, StdHeader)) {
for (Core = 0; Core < NumberOfCores; Core++) {
if ((Socket != BscSocket) || (Core != BscCoreNum)) {
ApUtilRunCodeOnSocketCore ((UINT8) Socket, (UINT8) Core, &TaskPtr, StdHeader);
}
}
}
}
}
}
}
return AGESA_SUCCESS;
}
/*---------------------------------------------------------------------------------------*/
/**
* 'Local' core 0 task to enable C6 on it's socket.
*
* @param[in] EntryPoint Timepoint designator.
* @param[in] StdHeader Config Handle for library, services.
* @param[in] CpuEarlyParams Service parameters.
*
*/
VOID
STATIC
EnableC6OnSocket (
IN VOID *EntryPoint,
IN AMD_CONFIG_PARAMS *StdHeader,
IN AMD_CPU_EARLY_PARAMS *CpuEarlyParams
)
{
C6_FAMILY_SERVICES *FamilyServices;
IDS_HDT_CONSOLE (CPU_TRACE, " C6 is enabled\n");
GetFeatureServicesOfCurrentCore (&C6FamilyServiceTable, (CONST VOID **)&FamilyServices, StdHeader);
FamilyServices->InitializeC6 (FamilyServices,
*((UINT64 *) EntryPoint),
&CpuEarlyParams->PlatformConfig,
StdHeader);
}
/*---------------------------------------------------------------------------------------*/
/**
* Reload microcode patch after memory is initialized.
*
* @param[in] StdHeader Config Handle for library, services.
*
*/
VOID
ReloadMicrocodePatchAfterMemInit (
IN AMD_CONFIG_PARAMS *StdHeader
)
{
LoadMicrocodePatch (StdHeader);
}
CONST CPU_FEATURE_DESCRIPTOR ROMDATA CpuFeatureC6State =
{
C6Cstate,
(CPU_FEAT_AFTER_PM_INIT | CPU_FEAT_AFTER_POST_MTRR_SYNC | CPU_FEAT_AFTER_RESUME_MTRR_SYNC),
IsC6FeatureEnabled,
InitializeC6Feature
};
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