diff options
Diffstat (limited to 'src/vendorcode/amd/agesa/f14/Proc/CPU/Family/0x10/cpuF10PowerPlane.c')
| -rw-r--r-- | src/vendorcode/amd/agesa/f14/Proc/CPU/Family/0x10/cpuF10PowerPlane.c | 484 |
1 files changed, 484 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f14/Proc/CPU/Family/0x10/cpuF10PowerPlane.c b/src/vendorcode/amd/agesa/f14/Proc/CPU/Family/0x10/cpuF10PowerPlane.c new file mode 100644 index 0000000000..4011971498 --- /dev/null +++ b/src/vendorcode/amd/agesa/f14/Proc/CPU/Family/0x10/cpuF10PowerPlane.c @@ -0,0 +1,484 @@ +/* $NoKeywords:$ */ +/** + * @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: 36224 $ @e \$Date: 2010-08-16 09:46:54 +0800 (Mon, 16 Aug 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 "cpuF10PowerMgmt.h" +#include "cpuApicUtilities.h" +#include "cpuServices.h" +#include "GeneralServices.h" +#include "cpuFamilyTranslation.h" +#include "cpuF10Utilities.h" +#include "Table.h" +#include "F10PackageType.h" +#include "Filecode.h" +CODE_GROUP (G1_PEICC) +RDATA_GROUP (G1_PEICC) + +#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 + *---------------------------------------------------------------------------------------- + */ + +/*---------------------------------------------------------------------------------------*/ +/** + * 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 PciRegister; + UINT32 VsSlamTime; + UINT32 Socket; + UINT32 Module; + UINT32 Core; + UINT32 NumOfCores; + UINT32 LowCore; + UINT32 AndMask; + UINT32 OrMask; + UINT32 ProcessorPackageType; + UINT64 MsrRegister; + 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, &PciRegister, StdHeader); + AndMask = 0xFFFFFFFF; + OrMask = 0x00000000; + if (((POWER_CTRL_MISC_REGISTER *) &PciRegister)->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; + } + ModifyCurrentSocketPci (&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; + ModifyCurrentSocketPci (&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, &PciRegister, 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 *) &PciRegister)->PstateMaxVal; + LibAmdMsrRead ((((CLK_PWR_TIMING_CTRL2_REGISTER *) &PciRegister)->PstateMaxVal + PS_REG_BASE), &MsrRegister, StdHeader); + ((POPUP_PSTATE_REGISTER *) &OrMask)->PopupCpuVid = (UINT32) ((PSTATE_MSR *) &MsrRegister)->CpuVid; + ((POPUP_PSTATE_REGISTER *) &OrMask)->PopupCpuFid = (UINT32) ((PSTATE_MSR *) &MsrRegister)->CpuFid; + ((POPUP_PSTATE_REGISTER *) &OrMask)->PopupCpuDid = (UINT32) ((PSTATE_MSR *) &MsrRegister)->CpuDid; + PciAddress.Address.Register = POPUP_PSTATE_REG; + ModifyCurrentSocketPci (&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 *) &MsrRegister)->CpuVid; + ModifyCurrentSocketPci (&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; + } + ModifyCurrentSocketPci (&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 MsrRegister; + + for (MsrAddr = PS_REG_BASE; MsrAddr <= PS_MAX_REG; MsrAddr++) { + LibAmdMsrRead (MsrAddr, &MsrRegister, StdHeader); + if (((PSTATE_MSR *) &MsrRegister)->PsEnable == (UINT64) 1) { + NbVid = (UINT32) (((PSTATE_MSR *) &MsrRegister)->NbVid); + CpuVid = (UINT32) (((PSTATE_MSR *) &MsrRegister)->CpuVid); + if (NbVid != CpuVid) { + if (NbVid > CpuVid) { + NbVid = CpuVid; + } + ((PSTATE_MSR *) &MsrRegister)->NbVid = NbVid; + ((PSTATE_MSR *) &MsrRegister)->CpuVid = NbVid; + LibAmdMsrWrite (MsrAddr, &MsrRegister, 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 PciRegister; + UINT64 MsrRegister; + 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, &MsrRegister, StdHeader); + MsrAddr = (UINT32) ((((PSTATE_CURLIM_MSR *) &MsrRegister)->PstateMaxVal) + PS_REG_BASE); + + // Get Pmin's VID + LibAmdMsrRead (MsrAddr, &MsrRegister, StdHeader); + PminVidCode = (UINT8) (((PSTATE_MSR *) &MsrRegister)->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 *) &MsrRegister)->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, &PciRegister, StdHeader); + AltVidCode = (UINT8) (((CLK_PWR_TIMING_CTRL2_REGISTER *) &PciRegister)->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; + } + ModifyCurrentSocketPci (&PciAddress, AndMask, OrMask, StdHeader); + } +} |