diff options
Diffstat (limited to 'src/vendorcode/amd/agesa/f14/Proc/CPU/Family/0x10/F10PmNbPstateInit.c')
| -rw-r--r-- | src/vendorcode/amd/agesa/f14/Proc/CPU/Family/0x10/F10PmNbPstateInit.c | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f14/Proc/CPU/Family/0x10/F10PmNbPstateInit.c b/src/vendorcode/amd/agesa/f14/Proc/CPU/Family/0x10/F10PmNbPstateInit.c new file mode 100644 index 0000000000..f69436f60b --- /dev/null +++ b/src/vendorcode/amd/agesa/f14/Proc/CPU/Family/0x10/F10PmNbPstateInit.c @@ -0,0 +1,188 @@ +/* $NoKeywords:$ */ +/** + * @file + * + * AMD Family_10 NB Pstate Initialization + * + * Performs the action described in F3x1F0[NbPstate] as + * described in the BKDG. + * + * @xrefitem bom "File Content Label" "Release Content" + * @e project: AGESA + * @e sub-project: CPU/F10 + * @e \$Revision: 35877 $ @e \$Date: 2010-08-03 12:51:46 +0800 (Tue, 03 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 "cpuRegisters.h" +#include "cpuF10PowerMgmt.h" +#include "cpuApicUtilities.h" +#include "GeneralServices.h" +#include "cpuFamilyTranslation.h" +#include "F10PmNbPstateInit.h" +#include "F10PackageType.h" +#include "Filecode.h" +CODE_GROUP (G1_PEICC) +RDATA_GROUP (G1_PEICC) + +#define FILECODE PROC_CPU_FAMILY_0X10_F10PMNBPSTATEINIT_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 + *---------------------------------------------------------------------------------------- + */ +/// Structure used for modifying the P-state +/// MSRs on fuse enable CPUs. +typedef struct { + UINT8 NbVid1; ///< Destination NB VID code + UINT8 NbPstate; ///< Status of NbVidUpdateAll +} NB_PSTATE_INIT; + +/*---------------------------------------------------------------------------------------- + * 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 +PmNbPstateInitCore ( + IN VOID *NbPstateParams, + 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 the actions described in the + * description of F3x1F0[NbPstate]. + * + * If F3x1F0[NbPstate] is non zero, it specifies the highest performance + * P-state in which to enable NbDid. Each core must loop through their + * P-state MSRs, enabling NbDid and changing NbVid to a lower voltage. + * + * @param[in] FamilySpecificServices The current Family Specific Services. + * @param[in] CpuEarlyParamsPtr Service related parameters (unused). + * @param[in] StdHeader Config handle for library and services. + * + */ +VOID +F10PmNbPstateInit ( + IN CPU_SPECIFIC_SERVICES *FamilySpecificServices, + IN AMD_CPU_EARLY_PARAMS *CpuEarlyParamsPtr, + IN AMD_CONFIG_PARAMS *StdHeader + ) +{ + UINT32 Core; + UINT32 Module; + UINT32 PciRegister; + UINT32 Socket; + AP_TASK TaskPtr; + PCI_ADDR PciAddress; + AGESA_STATUS IgnoredSts; + NB_PSTATE_INIT ApParams; + + if (FamilySpecificServices->IsNbPstateEnabled (FamilySpecificServices, &CpuEarlyParamsPtr->PlatformConfig, StdHeader)) { + if (CpuEarlyParamsPtr->PlatformConfig.PlatformProfile.PlatformPowerPolicy == BatteryLife) { + IdentifyCore (StdHeader, &Socket, &Module, &Core, &IgnoredSts); + ASSERT (Core == 0); + GetPciAddress (StdHeader, Socket, Module, &PciAddress, &IgnoredSts); + PciAddress.Address.Function = FUNC_3; + PciAddress.Address.Register = 0x1F0; + LibAmdPciRead (AccessWidth32, PciAddress, &PciRegister, StdHeader); + if ((PciRegister & 0x00070000) != 0) { + ApParams.NbPstate = (UINT8) ((PciRegister & 0x00070000) >> 16); + ASSERT (ApParams.NbPstate < NM_PS_REG); + + PciAddress.Address.Function = FUNC_4; + PciAddress.Address.Register = 0x1F4; + LibAmdPciRead (AccessWidth32, PciAddress, &PciRegister, StdHeader); + ApParams.NbVid1 = (UINT8) ((PciRegister & 0x00003F80) >> 7); + + TaskPtr.FuncAddress.PfApTaskI = PmNbPstateInitCore; + TaskPtr.DataTransfer.DataSizeInDwords = SIZE_IN_DWORDS (NB_PSTATE_INIT); + TaskPtr.DataTransfer.DataPtr = &ApParams; + TaskPtr.DataTransfer.DataTransferFlags = 0; + TaskPtr.ExeFlags = WAIT_FOR_CORE; + ApUtilRunCodeOnAllLocalCoresAtEarly (&TaskPtr, StdHeader, CpuEarlyParamsPtr); + + } + } + } +} + + +/*---------------------------------------------------------------------------------------*/ +/** + * Support routine for F10PmNbPstateInit. + * + * This function modifies NbVid and NbDid on each core. + * + * @param[in] NbPstateParams Appropriate NbVid1 and NbPstate as determined by core 0. + * @param[in] StdHeader Config handle for library and services. + * + */ +VOID +STATIC +PmNbPstateInitCore ( + IN VOID *NbPstateParams, + IN AMD_CONFIG_PARAMS *StdHeader + ) +{ + UINT32 MsrAddress; + UINT64 MsrRegister; + + for (MsrAddress = (PS_REG_BASE + ((NB_PSTATE_INIT *) NbPstateParams)->NbPstate); MsrAddress <= PS_MAX_REG; MsrAddress++) { + LibAmdMsrRead (MsrAddress, &MsrRegister, StdHeader); + if (((PSTATE_MSR *) &MsrRegister)->PsEnable == 1) { + ((PSTATE_MSR *) &MsrRegister)->NbDid = 1; + ((PSTATE_MSR *) &MsrRegister)->NbVid = ((NB_PSTATE_INIT *) NbPstateParams)->NbVid1; + LibAmdMsrWrite (MsrAddress, &MsrRegister, StdHeader); + } + } +} + |