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/* $NoKeywords:$ */
/**
* @file
*
* AMD Family_10 Power Plane Initialization
*
* Performs the "BIOS Requirements for Power Plane Initialization" as described
* in the BKDG.
*
* @xrefitem bom "File Content Label" "Release Content"
* @e project: AGESA
* @e sub-project: CPU/F10
* @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 "cpuF10PowerMgmt.h"
#include "cpuApicUtilities.h"
#include "cpuServices.h"
#include "GeneralServices.h"
#include "cpuFamilyTranslation.h"
#include "cpuF10Utilities.h"
#include "cpuF10PowerPlane.h"
#include "Table.h"
#include "F10PackageType.h"
#include "OptionMultiSocket.h"
#include "Filecode.h"
CODE_GROUP (G1_PEICC)
RDATA_GROUP (G2_PEI)
#define FILECODE PROC_CPU_FAMILY_0X10_CPUF10POWERPLANE_FILECODE
/*----------------------------------------------------------------------------------------
* D E F I N I T I O N S A N D M A C R O S
*----------------------------------------------------------------------------------------
*/
// Register encodings for F3xD4[PowerStepUp/PowerStepDown]
CONST UINT16 ROMDATA PowerStepEncodings[16] =
{
400, // 0000b: 400ns
300, // 0001b: 300ns
200, // 0010b: 200ns
100, // 0011b: 100ns
90, // 0100b: 90ns
80, // 0101b: 80ns
70, // 0110b: 70ns
60, // 0111b: 60ns
50, // 1000b: 50ns
45, // 1001b: 45ns
40, // 1010b: 40ns
35, // 1011b: 35ns
30, // 1100b: 30ns
25, // 1101b: 25ns
20, // 1110b: 20ns
15 // 1111b: 15ns
};
// Register encodings for F3xDC[AltvidVSSlamTime]
CONST UINT32 ROMDATA AltvidSlamTime[8] =
{
0, // 000b: <1us
10, // 001b: 10us
20, // 010b: 20us
40, // 011b: 40us
50, // 100b: 50us
70, // 101b: 70us
80, // 110b: 80us
90 // 111b: 90us
};
/*----------------------------------------------------------------------------------------
* 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
F10PmPwrPlaneInitPviCore (
IN AMD_CONFIG_PARAMS *StdHeader
);
UINT32
STATIC
F10CalculateAltvidVSSlamTimeOnCore (
IN BOOLEAN PviModeFlag,
IN PCI_ADDR *PciAddress,
IN AMD_CPU_EARLY_PARAMS *CpuEarlyParams,
IN AMD_CONFIG_PARAMS *StdHeader
);
VOID
STATIC
F10PmVrmLowPowerModeEnable (
IN CPU_SPECIFIC_SERVICES *FamilySpecificServices,
IN AMD_CPU_EARLY_PARAMS *CpuEarlyParams,
IN PCI_ADDR PciAddress,
IN AMD_CONFIG_PARAMS *StdHeader
);
/*----------------------------------------------------------------------------------------
* E X P O R T E D F U N C T I O N S
*----------------------------------------------------------------------------------------
*/
extern OPTION_MULTISOCKET_CONFIGURATION OptionMultiSocketConfiguration;
/*---------------------------------------------------------------------------------------*/
/**
* Family 10h core 0 entry point for performing power plane initialization.
*
* The steps are as follows:
* 1. If single plane, program lower VID code of CpuVid & NbVid for all
* enabled P-States.
* 2. Configure F3xA0[SlamMode] & F3xD8[VsRampTime & VsSlamTime] based on
* platform requirements.
* 3. Configure F3xD4[PowerStepUp & PowerStepDown]
* 4. Optionally configure F3xA0[PsiVidEn & PsiVid]
*
* @param[in] FamilySpecificServices The current Family Specific Services.
* @param[in] CpuEarlyParams Service parameters
* @param[in] StdHeader Config handle for library and services.
*
*/
VOID
F10CpuAmdPmPwrPlaneInit (
IN CPU_SPECIFIC_SERVICES *FamilySpecificServices,
IN AMD_CPU_EARLY_PARAMS *CpuEarlyParams,
IN AMD_CONFIG_PARAMS *StdHeader
)
{
BOOLEAN PviModeFlag;
PCI_ADDR PciAddress;
UINT16 PowerStepTime;
UINT32 PowerStepEncoded;
UINT32 LocalPciRegister;
UINT32 VsSlamTime;
UINT32 Socket;
UINT32 Module;
UINT32 Core;
UINT32 NumOfCores;
UINT32 LowCore;
UINT32 AndMask;
UINT32 OrMask;
UINT32 ProcessorPackageType;
UINT64 LocalMsrRegister;
AP_TASK TaskPtr;
AGESA_STATUS IgnoredSts;
PLATFORM_FEATS Features;
CPU_LOGICAL_ID LogicalId;
// Initialize the union
Features.PlatformValue = 0;
GetPlatformFeatures (&Features, &CpuEarlyParams->PlatformConfig, StdHeader);
IdentifyCore (StdHeader, &Socket, &Module, &Core, &IgnoredSts);
GetPciAddress (StdHeader, Socket, Module, &PciAddress, &IgnoredSts);
ASSERT (Core == 0);
GetLogicalIdOfCurrentCore (&LogicalId, StdHeader);
// Set SlamVidMode
PciAddress.Address.Function = FUNC_3;
PciAddress.Address.Register = PW_CTL_MISC_REG;
LibAmdPciRead (AccessWidth32, PciAddress, &LocalPciRegister, StdHeader);
AndMask = 0xFFFFFFFF;
OrMask = 0x00000000;
if (((POWER_CTRL_MISC_REGISTER *) &LocalPciRegister)->PviMode == 1) {
PviModeFlag = TRUE;
((POWER_CTRL_MISC_REGISTER *) &AndMask)->SlamVidMode = 0;
// Have all single plane cores adjust their NB and CPU VID fields
TaskPtr.FuncAddress.PfApTask = F10PmPwrPlaneInitPviCore;
TaskPtr.DataTransfer.DataSizeInDwords = 0;
TaskPtr.ExeFlags = WAIT_FOR_CORE;
ApUtilRunCodeOnAllLocalCoresAtEarly (&TaskPtr, StdHeader, CpuEarlyParams);
} else {
PviModeFlag = FALSE;
((POWER_CTRL_MISC_REGISTER *) &OrMask)->SlamVidMode = 1;
}
OptionMultiSocketConfiguration.ModifyCurrSocketPci (&PciAddress, AndMask, OrMask, StdHeader);
F10ProgramVSSlamTimeOnSocket (&PciAddress, CpuEarlyParams, StdHeader);
// Configure PowerStepUp/PowerStepDown
PciAddress.Address.Register = CPTC0_REG;
if ((Features.PlatformFeatures.PlatformSingleLink == 1) ||
(Features.PlatformFeatures.PlatformUma == 1) ||
(Features.PlatformFeatures.PlatformUmaIfcm == 1) ||
(Features.PlatformFeatures.PlatformIfcm == 1) ||
(Features.PlatformFeatures.PlatformIommu == 1)) {
PowerStepEncoded = 0x8;
} else {
GetGivenModuleCoreRange ((UINT32) Socket,
(UINT32) Module,
&LowCore,
&NumOfCores,
StdHeader);
NumOfCores = ((NumOfCores - LowCore) + 1);
PowerStepTime = (UINT16) (400 / NumOfCores);
for (PowerStepEncoded = 0xF; PowerStepEncoded > 0; PowerStepEncoded--) {
if (PowerStepTime <= PowerStepEncodings[PowerStepEncoded]) {
break;
}
}
}
AndMask = 0xFFFFFFFF;
((CLK_PWR_TIMING_CTRL_REGISTER *) &AndMask)->PowerStepUp = 0;
((CLK_PWR_TIMING_CTRL_REGISTER *) &AndMask)->PowerStepDown = 0;
OrMask = 0x00000000;
((CLK_PWR_TIMING_CTRL_REGISTER *) &OrMask)->PowerStepUp = PowerStepEncoded;
((CLK_PWR_TIMING_CTRL_REGISTER *) &OrMask)->PowerStepDown = PowerStepEncoded;
OptionMultiSocketConfiguration.ModifyCurrSocketPci (&PciAddress, AndMask, OrMask, StdHeader);
if ((LogicalId.Revision & AMD_F10_C3) != 0) {
// Set up Pop up P-state register
PciAddress.Address.Register = CPTC2_REG;
LibAmdPciRead (AccessWidth32, PciAddress, &LocalPciRegister, StdHeader);
AndMask = 0xFFFFFFFF;
((POPUP_PSTATE_REGISTER *) &AndMask)->PopupPstate = 0;
((POPUP_PSTATE_REGISTER *) &AndMask)->PopupCpuVid = 0;
((POPUP_PSTATE_REGISTER *) &AndMask)->PopupCpuFid = 0;
((POPUP_PSTATE_REGISTER *) &AndMask)->PopupCpuDid = 0;
OrMask = 0x00000000;
((POPUP_PSTATE_REGISTER *) &OrMask)->PopupEn = 0;
((POPUP_PSTATE_REGISTER *) &OrMask)->PopupPstate = ((CLK_PWR_TIMING_CTRL2_REGISTER *) &LocalPciRegister)->PstateMaxVal;
LibAmdMsrRead ((((CLK_PWR_TIMING_CTRL2_REGISTER *) &LocalPciRegister)->PstateMaxVal + PS_REG_BASE), &LocalMsrRegister, StdHeader);
((POPUP_PSTATE_REGISTER *) &OrMask)->PopupCpuVid = (UINT32) ((PSTATE_MSR *) &LocalMsrRegister)->CpuVid;
((POPUP_PSTATE_REGISTER *) &OrMask)->PopupCpuFid = (UINT32) ((PSTATE_MSR *) &LocalMsrRegister)->CpuFid;
((POPUP_PSTATE_REGISTER *) &OrMask)->PopupCpuDid = (UINT32) ((PSTATE_MSR *) &LocalMsrRegister)->CpuDid;
PciAddress.Address.Register = POPUP_PSTATE_REG;
OptionMultiSocketConfiguration.ModifyCurrSocketPci (&PciAddress, AndMask, OrMask, StdHeader);
// Set AltVidStart
PciAddress.Address.Register = CPTC1_REG;
AndMask = 0xFFFFFFFF;
((CLK_PWR_TIMING_CTRL1_REGISTER *) &AndMask)->AltVidStart = 0;
OrMask = 0x00000000;
((CLK_PWR_TIMING_CTRL1_REGISTER *) &OrMask)->AltVidStart = (UINT32) ((PSTATE_MSR *) &LocalMsrRegister)->CpuVid;
OptionMultiSocketConfiguration.ModifyCurrSocketPci (&PciAddress, AndMask, OrMask, StdHeader);
// Set up Altvid slam time
ProcessorPackageType = LibAmdGetPackageType (StdHeader);
PciAddress.Address.Register = CPTC2_REG;
VsSlamTime = F10CalculateAltvidVSSlamTimeOnCore (PviModeFlag, &PciAddress, CpuEarlyParams, StdHeader);
AndMask = 0xFFFFFFFF;
((CLK_PWR_TIMING_CTRL2_REGISTER *) &AndMask)->AltvidVSSlamTime = 0;
((CLK_PWR_TIMING_CTRL2_REGISTER *) &AndMask)->SlamTimeMode = 0;
OrMask = 0x00000000;
((CLK_PWR_TIMING_CTRL2_REGISTER *) &OrMask)->AltvidVSSlamTime = VsSlamTime;
if (ProcessorPackageType == PACKAGE_TYPE_S1G3_S1G4 || ProcessorPackageType == PACKAGE_TYPE_ASB2) {
// If CPUID Fn8000_0001_EBX[PkgType]=0010b or 0100b, BIOS should program this to 10b;
// else BIOS should leave this field at 00b.
((CLK_PWR_TIMING_CTRL2_REGISTER *) &OrMask)->SlamTimeMode = 2;
}
OptionMultiSocketConfiguration.ModifyCurrSocketPci (&PciAddress, AndMask, OrMask, StdHeader);
}
if (IsWarmReset (StdHeader) && !PviModeFlag) {
// Configure PsiVid
F10PmVrmLowPowerModeEnable (FamilySpecificServices, CpuEarlyParams, PciAddress, StdHeader);
}
}
/*---------------------------------------------------------------------------------------*/
/**
* Support routine for F10CpuAmdPmPwrPlaneInit.
*
* This function implements step 1 on each core.
*
* @param[in] StdHeader Config handle for library and services.
*
*/
VOID
STATIC
F10PmPwrPlaneInitPviCore (
IN AMD_CONFIG_PARAMS *StdHeader
)
{
UINT32 MsrAddr;
UINT32 NbVid;
UINT32 CpuVid;
UINT64 LocalMsrRegister;
for (MsrAddr = PS_REG_BASE; MsrAddr <= PS_MAX_REG; MsrAddr++) {
LibAmdMsrRead (MsrAddr, &LocalMsrRegister, StdHeader);
if (((PSTATE_MSR *) &LocalMsrRegister)->PsEnable == (UINT64) 1) {
NbVid = (UINT32) (((PSTATE_MSR *) &LocalMsrRegister)->NbVid);
CpuVid = (UINT32) (((PSTATE_MSR *) &LocalMsrRegister)->CpuVid);
if (NbVid != CpuVid) {
if (NbVid > CpuVid) {
NbVid = CpuVid;
}
((PSTATE_MSR *) &LocalMsrRegister)->NbVid = NbVid;
((PSTATE_MSR *) &LocalMsrRegister)->CpuVid = NbVid;
LibAmdMsrWrite (MsrAddr, &LocalMsrRegister, StdHeader);
}
}
}
}
/*---------------------------------------------------------------------------------------*/
/**
* Returns the encoded altvid voltage stabilization slam time for the executing
* family 10h core.
*
* This function calculates how much time it will take for the voltage to
* stabilize when transitioning from altvid to Pmin, and returns the necessary
* encoded value for the amount of time discovered.
*
* @param[in] PviModeFlag Whether or not the platform uses VRMs that
* employ the parallel VID interface.
* @param[in] PciAddress Full PCI address of the executing core's config space.
* @param[in] CpuEarlyParams Service parameters
* @param[in] StdHeader Config handle for library and services.
*
* @retval Encoded register value.
*
*/
UINT32
STATIC
F10CalculateAltvidVSSlamTimeOnCore (
IN BOOLEAN PviModeFlag,
IN PCI_ADDR *PciAddress,
IN AMD_CPU_EARLY_PARAMS *CpuEarlyParams,
IN AMD_CONFIG_PARAMS *StdHeader
)
{
UINT8 NbVid;
UINT8 AltVidCode;
UINT8 PminVidCode;
UINT32 MsrAddr;
UINT32 LocalPciRegister;
UINT64 LocalMsrRegister;
PCI_ADDR LocalPciAddress;
// Calculate Slam Time
// VSSlamTime = 0.4us/mV (or 0.2us/mV) * Vpmin - Altvid
// In our case, we will scale the values by 100 to avoid
// decimals.
// Get Pmin's index
LibAmdMsrRead (MSR_PSTATE_CURRENT_LIMIT, &LocalMsrRegister, StdHeader);
MsrAddr = (UINT32) ((((PSTATE_CURLIM_MSR *) &LocalMsrRegister)->PstateMaxVal) + PS_REG_BASE);
// Get Pmin's VID
LibAmdMsrRead (MsrAddr, &LocalMsrRegister, StdHeader);
PminVidCode = (UINT8) (((PSTATE_MSR *) &LocalMsrRegister)->CpuVid);
// If SVI, we only care about CPU VID.
// If PVI, determine the higher voltage b/t NB and CPU
if (PviModeFlag) {
NbVid = (UINT8) (((PSTATE_MSR *) &LocalMsrRegister)->NbVid);
if (PminVidCode > NbVid) {
PminVidCode = NbVid;
}
}
// Get Alt VID
LocalPciAddress.AddressValue = PciAddress->AddressValue;
LocalPciAddress.Address.Function = FUNC_3;
LocalPciAddress.Address.Register = CPTC2_REG;
LibAmdPciRead (AccessWidth32, LocalPciAddress, &LocalPciRegister, StdHeader);
AltVidCode = (UINT8) (((CLK_PWR_TIMING_CTRL2_REGISTER *) &LocalPciRegister)->AltVid);
return (F10GetSlamTimeEncoding (PminVidCode, AltVidCode, CpuEarlyParams, AltvidSlamTime, StdHeader));
}
/*---------------------------------------------------------------------------------------*/
/**
* Sets up PSI_L operation.
*
* This function implements the LowPowerThreshold parameter.
*
* @param[in] FamilySpecificServices The current Family Specific Services.
* @param[in] CpuEarlyParams Contains VrmLowPowerThreshold parameter.
* @param[in] PciAddress PCI address of the executing core's config space.
* @param[in] StdHeader Config handle for library and services.
*
*/
VOID
STATIC
F10PmVrmLowPowerModeEnable (
IN CPU_SPECIFIC_SERVICES *FamilySpecificServices,
IN AMD_CPU_EARLY_PARAMS *CpuEarlyParams,
IN PCI_ADDR PciAddress,
IN AMD_CONFIG_PARAMS *StdHeader
)
{
UINT32 Pstate;
UINT32 PstateCurrent;
UINT32 NextPstateCurrent;
UINT32 AndMask;
UINT32 OrMask;
UINT32 PreviousVID;
UINT32 PstateVID;
UINT32 HwPsMaxVal;
UINT64 PstateMsr;
BOOLEAN EnablePsi;
if (CpuEarlyParams->PlatformConfig.VrmProperties[CoreVrm].LowPowerThreshold != 0) {
EnablePsi = FALSE;
PreviousVID = 0x7F; // Initialize to invalid zero volt VID code
PstateVID = 0x7F;
PciAddress.Address.Function = FUNC_3;
PciAddress.Address.Register = CPTC2_REG;
LibAmdPciRead (AccessWidth32, PciAddress, &HwPsMaxVal, StdHeader);
for (Pstate = 0; Pstate <= (UINT32) ((CLK_PWR_TIMING_CTRL2_REGISTER *) &HwPsMaxVal)->PstateMaxVal; Pstate++) {
if (FamilySpecificServices->GetProcIddMax (FamilySpecificServices, (UINT8) Pstate, &PstateCurrent, StdHeader)) {
LibAmdMsrRead ((UINT32) (Pstate + PS_REG_BASE), &PstateMsr, StdHeader);
PstateVID = (UINT32) (((PSTATE_MSR *) &PstateMsr)->CpuVid);
if ((Pstate + 1) > (UINT32) ((CLK_PWR_TIMING_CTRL2_REGISTER *) &HwPsMaxVal)->PstateMaxVal) {
NextPstateCurrent = 0;
} else if (FamilySpecificServices->GetProcIddMax (FamilySpecificServices, (UINT8) (Pstate + 1), &NextPstateCurrent, StdHeader)) {
NextPstateCurrent = CpuEarlyParams->PlatformConfig.VrmProperties[CoreVrm].InrushCurrentLimit + NextPstateCurrent;
}
if ((PstateCurrent <= CpuEarlyParams->PlatformConfig.VrmProperties[CoreVrm].LowPowerThreshold) && (NextPstateCurrent <= CpuEarlyParams->PlatformConfig.VrmProperties[CoreVrm].LowPowerThreshold) && (PstateVID != PreviousVID)) {
EnablePsi = TRUE;
break;
}
PreviousVID = PstateVID;
}
}
PciAddress.Address.Function = FUNC_3;
PciAddress.Address.Register = PW_CTL_MISC_REG;
AndMask = 0xFFFFFFFF;
OrMask = 0x00000000;
((POWER_CTRL_MISC_REGISTER *) &AndMask)->PsiVid = 0;
if (EnablePsi) {
((POWER_CTRL_MISC_REGISTER *) &OrMask)->PsiVid = PstateVID;
((POWER_CTRL_MISC_REGISTER *) &OrMask)->PsiVidEn = 1;
} else {
((POWER_CTRL_MISC_REGISTER *) &AndMask)->PsiVidEn = 0;
}
OptionMultiSocketConfiguration.ModifyCurrSocketPci (&PciAddress, AndMask, OrMask, StdHeader);
}
}
|