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/* $NoKeywords:$ */
/**
* @file
*
* AMD AGESA CPU HW C1e feature support code.
*
* Contains code that declares the AGESA CPU C1e related APIs
*
* @xrefitem bom "File Content Label" "Release Content"
* @e project: AGESA
* @e sub-project: CPU/Feature
* @e \$Revision: 44324 $ @e \$Date: 2010-12-22 17:16:51 +0800 (Wed, 22 Dec 2010) $
*
*/
/*
******************************************************************************
*
* 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.
******************************************************************************
*/
/*----------------------------------------------------------------------------------------
* M O D U L E S U S E D
*----------------------------------------------------------------------------------------
*/
#include "AGESA.h"
#include "amdlib.h"
#include "Ids.h"
#include "cpuRegisters.h"
#include "cpuApicUtilities.h"
#include "cpuServices.h"
#include "GeneralServices.h"
#include "cpuFamilyTranslation.h"
#include "Topology.h"
#include "cpuFeatures.h"
#include "cpuHwC1e.h"
#include "Filecode.h"
CODE_GROUP (G1_PEICC)
RDATA_GROUP (G1_PEICC)
#define FILECODE PROC_CPU_FEATURE_CPUHWC1E_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
*----------------------------------------------------------------------------------------
*/
/*----------------------------------------------------------------------------------------
* E X P O R T E D F U N C T I O N S
*----------------------------------------------------------------------------------------
*/
extern CPU_FAMILY_SUPPORT_TABLE HwC1eFamilyServiceTable;
/*---------------------------------------------------------------------------------------*/
/**
* Should hardware C1e be enabled
*
* @param[in] PlatformConfig Contains the runtime modifiable feature input data.
* @param[in] StdHeader Config Handle for library, services.
*
* @retval TRUE HW C1e is supported.
* @retval FALSE HW C1e cannot be enabled.
*
*/
BOOLEAN
STATIC
IsHwC1eFeatureEnabled (
IN PLATFORM_CONFIGURATION *PlatformConfig,
IN AMD_CONFIG_PARAMS *StdHeader
)
{
UINT32 C1eData;
BOOLEAN IsEnabled;
AP_MAILBOXES ApMailboxes;
HW_C1E_FAMILY_SERVICES *FamilyServices;
ASSERT (PlatformConfig->C1eMode < MaxC1eMode);
IsEnabled = FALSE;
C1eData = PlatformConfig->C1ePlatformData;
if ((PlatformConfig->C1eMode == C1eModeHardware) || (PlatformConfig->C1eMode == C1eModeHardwareSoftwareDeprecated) ||
(PlatformConfig->C1eMode == C1eModeAuto)) {
// If C1eMode is Auto, C1ePlatformData3 specifies the P_LVL3 I/O port of the platform for HW C1e
if (PlatformConfig->C1eMode == C1eModeAuto) {
C1eData = PlatformConfig->C1ePlatformData3;
}
ASSERT (C1eData < 0x10000);
ASSERT (C1eData != 0);
if ((C1eData != 0) && (C1eData < 0xFFFE)) {
if (!IsNonCoherentHt1 (StdHeader)) {
if (GetNumberOfProcessors (StdHeader) == 1) {
GetApMailbox (&ApMailboxes.ApMailInfo.Info, StdHeader);
if (ApMailboxes.ApMailInfo.Fields.ModuleType == 0) {
GetFeatureServicesOfCurrentCore (&HwC1eFamilyServiceTable, (const VOID **)&FamilyServices, StdHeader);
if (FamilyServices != NULL) {
IsEnabled = FamilyServices->IsHwC1eSupported (FamilyServices, StdHeader);
}
}
}
}
}
}
return IsEnabled;
}
/*---------------------------------------------------------------------------------------*/
/**
* Enable Hardware C1e
*
* @param[in] EntryPoint Timepoint designator.
* @param[in] PlatformConfig Contains the runtime modifiable feature input data.
* @param[in] StdHeader Config Handle for library, services.
*
* @return The most severe status of any family specific service.
*
*/
AGESA_STATUS
STATIC
InitializeHwC1eFeature (
IN UINT64 EntryPoint,
IN PLATFORM_CONFIGURATION *PlatformConfig,
IN AMD_CONFIG_PARAMS *StdHeader
)
{
AGESA_STATUS CalledStatus;
AGESA_STATUS AgesaStatus;
HW_C1E_FAMILY_SERVICES *FamilyServices;
AgesaStatus = AGESA_SUCCESS;
IDS_HDT_CONSOLE (CPU_TRACE, " HW C1e is enabled\n");
if (IsWarmReset (StdHeader)) {
GetFeatureServicesOfCurrentCore (&HwC1eFamilyServiceTable, (const VOID **)&FamilyServices, StdHeader);
CalledStatus = FamilyServices->InitializeHwC1e (FamilyServices, EntryPoint, PlatformConfig, StdHeader);
if (CalledStatus > AgesaStatus) {
AgesaStatus = CalledStatus;
}
}
return AgesaStatus;
}
CONST CPU_FEATURE_DESCRIPTOR ROMDATA CpuFeatureHwC1e =
{
HardwareC1e,
CPU_FEAT_AFTER_PM_INIT,
IsHwC1eFeatureEnabled,
InitializeHwC1eFeature
};