diff options
Diffstat (limited to 'src/vendorcode/amd/agesa/f14/Proc/CPU/Family/0x10/cpuF10EarlyInit.c')
| -rw-r--r-- | src/vendorcode/amd/agesa/f14/Proc/CPU/Family/0x10/cpuF10EarlyInit.c | 424 |
1 files changed, 424 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f14/Proc/CPU/Family/0x10/cpuF10EarlyInit.c b/src/vendorcode/amd/agesa/f14/Proc/CPU/Family/0x10/cpuF10EarlyInit.c new file mode 100644 index 0000000000..671af0e94c --- /dev/null +++ b/src/vendorcode/amd/agesa/f14/Proc/CPU/Family/0x10/cpuF10EarlyInit.c @@ -0,0 +1,424 @@ +/* $NoKeywords:$ */ +/** + * @file + * + * AMD Family_10 after warm reset sequence + * + * Performs the "CPU Core Minimum P-State Transition Sequence After Warm Reset" + * as described in the BKDG. + * + * @xrefitem bom "File Content Label" "Release Content" + * @e project: AGESA + * @e sub-project: CPU/Family/0x10 + * @e \$Revision: 35136 $ @e \$Date: 2010-07-16 11:29:48 +0800 (Fri, 16 Jul 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 "cpuF10PowerMgmt.h" +#include "cpuRegisters.h" +#include "cpuApicUtilities.h" +#include "cpuFamilyTranslation.h" +#include "cpuF10Utilities.h" +#include "GeneralServices.h" +#include "cpuServices.h" +#include "Filecode.h" +CODE_GROUP (G1_PEICC) +RDATA_GROUP (G1_PEICC) + +#define FILECODE PROC_CPU_FAMILY_0X10_CPUF10EARLYINIT_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 + *---------------------------------------------------------------------------------------- + */ +/// Enum for handling code branching while transitioning to the +/// minimum P-state after a warm reset +typedef enum { + EXIT_SEQUENCE, ///< Exit the sequence + STEP7, ///< Go to step 7 + STEP17, ///< Go to step 17 + STEP20 ///< Go to step 20 +} GO_TO_STEP; + +/*---------------------------------------------------------------------------------------- + * 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 +F10PmAfterResetCore ( + IN AMD_CONFIG_PARAMS *StdHeader + ); + +VOID +STATIC +WaitForCpuFidAndDidToMatch ( + IN UINT32 PstateNumber, + 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 necessary steps after + * a warm reset has occurred. + * + * The steps are as follows: + * 1. Modify F3xDC[PstateMaxVal] to reflect the lowest performance P-state + * supported, as indicated in MSRC001_00[68:64][PstateEn] + * 2. If MSRC001_0071[CurNbDid] = 0, set MSRC001_001F[GfxNbPstateDis] + * 3. If MSRC001_0071[CurPstate] != F3xDC[PstateMaxVal], go to step 20 + * 4. If F3xDC[PstateMaxVal] = 0 or F3xDC[PstateMaxVal] != 4, go to step 7 + * 5. If MSRC001_0061[CurPstateLimit] <= F3xDC[PstateMaxVal]-1, go to step 17 + * 6. Exit the sequence + * 7. Copy the P-state register pointed to by F3xDC[PstateMaxVal] to the P-state + * register pointed to by F3xDC[PstateMaxVal]+1 + * 8. Write F3xDC[PstateMaxVal]+1 to F3xDC[PstateMaxVal] + * 9. Write (the new) F3xDC[PstateMaxVal] to MSRC001_0062[PstateCmd] + * 10. Wait for MSRC001_0071[CurCpuFid/CurCpuDid] = CpuFid/CpuDid from the P-state + * register pointed to by (the new) F3xDC[PstateMaxVal] + * 11. Copy (the new) F3xDC[PstateMaxVal]-1 to MSRC001_0062[PstateCmd] + * 12. Wait for MSRC001_0071[CurCpuFid/CurCpuDid] = CpuFid/CpuDid from the P-state + * register pointed to by (the new) F3xDC[PstateMaxVal]-1 + * 13. If MSRC001_0071[CurNbDid] = 1, set MSRC001_001F[GfxNbPstateDis] + * 14. If required, transition the NB COF and VID to the NbDid and NbVid from the + * P-state register pointed to by MSRC001_0061[CurPstateLimit] using the NB COF + * and VID transition sequence after a warm reset + * 15. Write MSRC001_00[68:64][PstateEn]=0 for the P-state pointed to by F3xDC[PstateMaxVal] + * 16. Write (the new) F3xDC[PstateMaxVal]-1 to F3xDC[PstateMaxVal] and exit the sequence + * 17. Copy F3xDC[PstateMaxVal]-1 to MSRC001_0062[PstateCmd] + * 18. Wait for MSRC001_0071[CurCpuFid/CurCpuDid] = CpuFid/CpuDid from the P-state + * register pointed to by F3xDC[PstateMaxVal]-1 + * 19. If MSRC001_0071[CurNbDid] = 0, set MSRC001_001F[GfxNbPstateDis] + * 20. Copy F3xDC[PstateMaxVal] to MSRC001_0062[PstateCmd] + * 21. Wait for MSRC001_0071[CurCpuFid/CurCpuDid] = CpuFid/CpuDid from the P-state + * register pointed to by F3xDC[PstateMaxVal] + * 22. If MSRC001_0071[CurNbDid] = 1, set MSRC001_001F[GfxNbPstateDis] + * 23. Issue an LDTSTOP assertion in the IO hub and exit sequence + * 24. If required, transition the NB COF and VID to the NbDid and NbVid from the + * P-state register pointed to by F3xDC[PstateMaxVal] using the NB COF and VID + * transition sequence after a warm reset + * + * @param[in] FamilySpecificServices The current Family Specific Services. + * @param[in] CpuEarlyParamsPtr Service parameters + * @param[in] StdHeader Config handle for library and services. + * + */ +VOID +F10PmAfterReset ( + IN CPU_SPECIFIC_SERVICES *FamilySpecificServices, + IN AMD_CPU_EARLY_PARAMS *CpuEarlyParamsPtr, + IN AMD_CONFIG_PARAMS *StdHeader + ) +{ + UINT32 Socket; + UINT32 Module; + UINT32 PsMaxVal; + UINT32 CoreNum; + UINT32 MsrAddr; + UINT32 Core; + UINT32 AndMask; + UINT32 OrMask; + UINT64 MsrRegister; + PCI_ADDR PciAddress; + AP_TASK TaskPtr; + AGESA_STATUS IgnoredSts; + + IdentifyCore (StdHeader, &Socket, &Module, &Core, &IgnoredSts); + GetPciAddress (StdHeader, Socket, Module, &PciAddress, &IgnoredSts); + GetActiveCoresInCurrentSocket (&CoreNum, StdHeader); + + ASSERT (Core == 0); + + // Step 1 Modify F3xDC[PstateMaxVal] to reflect the lowest performance + // P-state supported, as indicated in MSRC001_00[68:64][PstateEn] + for (MsrAddr = PS_MAX_REG; MsrAddr > PS_REG_BASE; --MsrAddr) { + LibAmdMsrRead (MsrAddr, &MsrRegister, StdHeader); + if (((PSTATE_MSR *) &MsrRegister)->PsEnable == 1) { + break; + } + } + PsMaxVal = MsrAddr - PS_REG_BASE; + PciAddress.Address.Function = FUNC_3; + PciAddress.Address.Register = CPTC2_REG; + AndMask = 0xFFFFFFFF; + OrMask = 0x00000000; + ((CLK_PWR_TIMING_CTRL2_REGISTER *) &AndMask)->PstateMaxVal = 0; + ((CLK_PWR_TIMING_CTRL2_REGISTER *) &OrMask)->PstateMaxVal = PsMaxVal; + ModifyCurrentSocketPci (&PciAddress, AndMask, OrMask, StdHeader); + + // Launch each local core to perform the remaining steps. + TaskPtr.FuncAddress.PfApTask = F10PmAfterResetCore; + TaskPtr.DataTransfer.DataSizeInDwords = 0; + TaskPtr.ExeFlags = WAIT_FOR_CORE; + ApUtilRunCodeOnAllLocalCoresAtEarly (&TaskPtr, StdHeader, CpuEarlyParamsPtr); +} + + +/*--------------------------------------------------------------------------------------- + * L O C A L F U N C T I O N S + *--------------------------------------------------------------------------------------- + */ + +/*---------------------------------------------------------------------------------------*/ +/** + * Support routine for F10PmAfterReset to perform MSR initialization on all + * cores of a family 10h socket. + * + * This function implements steps 2 - 24 on each core. + * + * @param[in] StdHeader Config handle for library and services. + * + */ +VOID +STATIC +F10PmAfterResetCore ( + IN AMD_CONFIG_PARAMS *StdHeader + ) +{ + UINT32 Socket; + UINT32 Module; + UINT32 Ignored; + UINT32 PsMaxVal; + UINT32 PciRegister; + UINT64 MsrRegister; + UINT64 SavedMsr; + UINT64 CurrentLimitMsr; + PCI_ADDR PciAddress; + GO_TO_STEP GoToStep; + AGESA_STATUS IgnoredSts; + CPU_LOGICAL_ID LogicalId; + CPU_SPECIFIC_SERVICES *FamilySpecificServices; + + // Step 2 If MSR C001_0071[CurNbDid] = 0, set MSR C001_001F[GfxNbPstateDis] + GetLogicalIdOfCurrentCore (&LogicalId, StdHeader); + GetCpuServicesFromLogicalId (&LogicalId, &FamilySpecificServices, StdHeader); + if ((LogicalId.Revision & (AMD_F10_C3 | AMD_F10_DA_C2)) != 0) { + LibAmdMsrRead (MSR_COFVID_STS, &MsrRegister, StdHeader); + if (((COFVID_STS_MSR *) &MsrRegister)->CurNbDid == 0) { + LibAmdMsrRead (NB_CFG, &MsrRegister, StdHeader); + MsrRegister |= BIT62; + LibAmdMsrWrite (NB_CFG, &MsrRegister, StdHeader); + } + } + + GoToStep = EXIT_SEQUENCE; + + LibAmdMsrRead (MSR_PSTATE_CURRENT_LIMIT, &CurrentLimitMsr, StdHeader); + PsMaxVal = (UINT32) (((PSTATE_CURLIM_MSR *) &CurrentLimitMsr)->PstateMaxVal); + + // Step 3 If MSRC001_0071[CurPstate] != F3xDC[PstateMaxVal], go to step 20 + LibAmdMsrRead (MSR_COFVID_STS, &MsrRegister, StdHeader); + if (((COFVID_STS_MSR *) &MsrRegister)->CurPstate != + ((PSTATE_CURLIM_MSR *) &CurrentLimitMsr)->PstateMaxVal) { + GoToStep = STEP20; + } else { + // Step 4 If F3xDC[PstateMaxVal] = 0 || F3xDC[PstateMaxVal] != 4, go to step 7 + if ((PsMaxVal == 0) || (PsMaxVal != 4)) { + GoToStep = STEP7; + } else { + // Step 5 If MSRC001_0061[CurPstateLimit] <= F3xDC[PstateMaxVal]-1, go to step 17 + if (((PSTATE_CURLIM_MSR *) &CurrentLimitMsr)->CurPstateLimit <= + (((PSTATE_CURLIM_MSR *) &CurrentLimitMsr)->PstateMaxVal - 1)) { + GoToStep = STEP17; + } + } + } + switch (GoToStep) { + default: + case EXIT_SEQUENCE: + // Step 6 Exit the sequence + break; + case STEP7: + // Workaround for S3 ----Save the value of [The PState[4:0] Registers] MSRC001_00[68:64] + // pointed to by F3xDC[PstateMaxVal] + 1 + LibAmdMsrRead ((MSR_PSTATE_0 + (PsMaxVal + 1)), &SavedMsr, StdHeader); + + // Step 7 Copy the P-state register pointed to by F3xDC[PstateMaxVal] to the P-state + // register pointed to by F3xDC[PstateMaxVal]+1 + LibAmdMsrRead ((MSR_PSTATE_0 + PsMaxVal), &MsrRegister, StdHeader); + LibAmdMsrWrite ((MSR_PSTATE_0 + (PsMaxVal + 1)), &MsrRegister, StdHeader); + + // Step 8 Write F3xDC[PstateMaxVal]+1 to F3xDC[PstateMaxVal] + IdentifyCore (StdHeader, &Socket, &Module, &Ignored, &IgnoredSts); + GetPciAddress (StdHeader, Socket, Module, &PciAddress, &IgnoredSts); + PciAddress.Address.Function = FUNC_3; + PciAddress.Address.Register = CPTC2_REG; + LibAmdPciRead (AccessWidth32, PciAddress, &PciRegister, StdHeader); + ((CLK_PWR_TIMING_CTRL2_REGISTER *) &PciRegister)->PstateMaxVal = PsMaxVal + 1; + LibAmdPciWrite (AccessWidth32, PciAddress, &PciRegister, StdHeader); + + // Step 9 Write (the new) F3xDC[PstateMaxVal] to MSRC001_0062[PstateCmd] + FamilySpecificServices->TransitionPstate (FamilySpecificServices, (UINT8) (PsMaxVal + 1), (BOOLEAN) FALSE, StdHeader); + + // Step 10 Wait for MSRC001_0071[CurCpuFid/CurCpuDid] = CpuFid/CpuDid from the P-state + // register pointed to by (the new) F3xDC[PstateMaxVal] + WaitForCpuFidAndDidToMatch ((UINT32) (PsMaxVal + 1), StdHeader); + + // Step 11 Copy (the new) F3xDC[PstateMaxVal]-1 to MSRC001_0062[PstateCmd] + FamilySpecificServices->TransitionPstate (FamilySpecificServices, (UINT8) PsMaxVal, (BOOLEAN) FALSE, StdHeader); + + // Step 12 Wait for MSRC001_0071[CurCpuFid/CurCpuDid] = CpuFid/CpuDid from the P-state + // register pointed to by (the new) F3xDC[PstateMaxVal]-1 + WaitForCpuFidAndDidToMatch (PsMaxVal, StdHeader); + + // Step 13 If MSRC001_0071[CurNbDid] = 1, set MSRC001_001F[GfxNbPstateDis] + if ((LogicalId.Revision & (AMD_F10_C3 | AMD_F10_DA_C2)) != 0) { + LibAmdMsrRead (MSR_COFVID_STS, &MsrRegister, StdHeader); + if (((COFVID_STS_MSR *) &MsrRegister)->CurNbDid == 1) { + LibAmdMsrRead (NB_CFG, &MsrRegister, StdHeader); + MsrRegister |= BIT62; + LibAmdMsrWrite (NB_CFG, &MsrRegister, StdHeader); + } + } + + // Step 14 If required, transition the NB COF and VID to the NbDid and NbVid from the + // P-state register pointed to by MSRC001_0061[CurPstateLimit] using the NB COF + // and VID transition sequence after a warm reset + + // Step 15 Write 0 to PstateEn of the P-state register pointed to by (the new) F3xDC[PstateMaxVal] + // Workaround for S3----Restore the value of [The PState[4:0] Registers] MSRC001_00[68:64] + // pointed to by F3xDC[PstateMaxVal] + 1 + ((PSTATE_MSR *) &SavedMsr)->PsEnable = 0; + LibAmdMsrWrite ((MSR_PSTATE_0 + (PsMaxVal + 1)), &SavedMsr, StdHeader); + + // Step 16 Write (the new) F3xDC[PstateMaxVal]-1 to F3xDC[PstateMaxVal] + LibAmdPciRead (AccessWidth32, PciAddress, &PciRegister, StdHeader); + ((CLK_PWR_TIMING_CTRL2_REGISTER *) &PciRegister)->PstateMaxVal = PsMaxVal; + LibAmdPciWrite (AccessWidth32, PciAddress, &PciRegister, StdHeader); + break; + case STEP17: + // Step 17 Copy F3xDC[PstateMaxVal]-1 to MSRC001_0062[PstateCmd] + FamilySpecificServices->TransitionPstate (FamilySpecificServices, (UINT8) (PsMaxVal - 1), (BOOLEAN) FALSE, StdHeader); + + // Step 18 Wait for MSRC001_0071[CurCpuFid/CurCpuDid] = CpuFid/CpuDid from the P-state + // register pointed to by F3xDC[PstateMaxVal]-1 + WaitForCpuFidAndDidToMatch ((UINT32) (PsMaxVal - 1), StdHeader); + + // Step 19 If MSR C001_0071[CurNbDid] = 0, set MSR C001_001F[GfxNbPstateDis] + if ((LogicalId.Revision & (AMD_F10_C3 | AMD_F10_DA_C2)) != 0) { + LibAmdMsrRead (MSR_COFVID_STS, &MsrRegister, StdHeader); + if (((COFVID_STS_MSR *) &MsrRegister)->CurNbDid == 0) { + LibAmdMsrRead (NB_CFG, &MsrRegister, StdHeader); + MsrRegister |= BIT62; + LibAmdMsrWrite (NB_CFG, &MsrRegister, StdHeader); + } + } + + // Fall through from step 19 to step 20 + case STEP20: + // Step 20 Copy F3xDC[PstateMaxVal] to MSRC001_0062[PstateCmd] + FamilySpecificServices->TransitionPstate (FamilySpecificServices, (UINT8) PsMaxVal, (BOOLEAN) FALSE, StdHeader); + + // Step 21 Wait for MSRC001_0071[CurCpuFid/CurCpuDid] = CpuFid/CpuDid from the P-state + // register pointed to by F3xDC[PstateMaxVal] + WaitForCpuFidAndDidToMatch (PsMaxVal, StdHeader); + + // Step 22 If MSR C001_0071[CurNbDid] = 1, set MSR C001_001F[GfxNbPstateDis] and exit + // the sequence + if ((LogicalId.Revision & (AMD_F10_C3 | AMD_F10_DA_C2)) != 0) { + LibAmdMsrRead (MSR_COFVID_STS, &MsrRegister, StdHeader); + if (((COFVID_STS_MSR *) &MsrRegister)->CurNbDid == 1) { + LibAmdMsrRead (NB_CFG, &MsrRegister, StdHeader); + MsrRegister |= BIT62; + LibAmdMsrWrite (NB_CFG, &MsrRegister, StdHeader); + break; + } + } + + // Step 23 Issue an LDTSTOP and exit the sequence + + // Step 24 If required, transition the NB COF and VID to the NbDid and NbVid from the + // P-state register pointed to by F3xDC[PstateMaxVal] using the NB COF and VID + // transition sequence after a warm reset + break; + } +} + +/*---------------------------------------------------------------------------------------*/ +/** + * Support routine for F10PmAfterResetCore to wait for Cpu FID and DID to + * match a specific P-state. + * + * This function implements steps 11, 13, 18, and 20 on each core as needed. + * + * @param[in] PstateNumber P-state settings to match + * @param[in] StdHeader Config handle for library and services. + * + */ +VOID +STATIC +WaitForCpuFidAndDidToMatch ( + IN UINT32 PstateNumber, + IN AMD_CONFIG_PARAMS *StdHeader + ) +{ + UINT64 TargetPsMsr; + UINT64 CurrentStatus; + UINT32 PciRegister; + PCI_ADDR PciAddress; + CPUID_DATA CpuidData; + + // Check if CPB is supported. if yes, skip boosted p-state. The boosted p-state number = F4x15C[NumBoostStates]. + LibAmdCpuidRead (AMD_CPUID_APM, &CpuidData, StdHeader); + if (((CpuidData.EDX_Reg & 0x00000200) >> 9) == 1) { + PciAddress.AddressValue = CPB_CTRL_PCI_ADDR; + LibAmdPciRead (AccessWidth32, PciAddress, &PciRegister, StdHeader); // F4x15C + PstateNumber += (UINT32) (((CPB_CTRL_REGISTER *) &PciRegister)->NumBoostStates); + } + + // Get target P-state settings + LibAmdMsrRead ((MSR_PSTATE_0 + PstateNumber), &TargetPsMsr, StdHeader); + + // Wait for current CPU FID/DID to match target FID/DID + do { + LibAmdMsrRead (MSR_COFVID_STS, &CurrentStatus, StdHeader); + } while ((((COFVID_STS_MSR *) &CurrentStatus)->CurCpuFid != ((PSTATE_MSR *) &TargetPsMsr)->CpuFid) || + (((COFVID_STS_MSR *) &CurrentStatus)->CurCpuDid != ((PSTATE_MSR *) &TargetPsMsr)->CpuDid)); +} |