C++ GetPciAddress函数代码示例

/**
 * A Family Specific Workaround method, to sync internal node 1 SbiAddr setting.
 *
 * @param[in] Data      The table data value (unused in this routine)
 * @param[in] StdHeader Config handle for library and services
 *
 *---------------------------------------------------------------------------------------
 **/
VOID
STATIC
F10RevDSyncInternalNode1SbiAddr (
  IN       UINT32            Data,
  IN       AMD_CONFIG_PARAMS *StdHeader
  )
{
  UINT32       Socket;
  UINT32       Module;
  UINT32       DataOr;
  UINT32       DataAnd;
  UINT32       ModuleType;
  PCI_ADDR     PciAddress;
  AGESA_STATUS AgesaStatus;
  UINT32       SyncToModule;
  AP_MAIL_INFO ApMailboxInfo;
  UINT32       LocalPciRegister;

  ApMailboxInfo.Info = 0;

  GetApMailbox (&ApMailboxInfo.Info, StdHeader);
  ASSERT (ApMailboxInfo.Fields.Socket < MAX_SOCKETS);
  ASSERT (ApMailboxInfo.Fields.Module < MAX_DIES);
  Socket = ApMailboxInfo.Fields.Socket;
  Module = ApMailboxInfo.Fields.Module;
  ModuleType = ApMailboxInfo.Fields.ModuleType;

  // sync is just needed on multinode cpu
  if (ModuleType != 0) {
    // check if it is internal node 0 of every socket
    if (Module == 0) {
      if (GetPciAddress (StdHeader, Socket, Module, &PciAddress, &AgesaStatus)) {
        PciAddress.Address.Function = FUNC_3;
        PciAddress.Address.Register = 0x1E4;
        // read internal node 0 F3x1E4[6:4]
        LibAmdPciRead (AccessWidth32, PciAddress, &LocalPciRegister, StdHeader);
        DataOr = LocalPciRegister & ((UINT32) (7 << 4));
        DataAnd = ~(UINT32) (7 << 4);
        for (SyncToModule = 1; SyncToModule < GetPlatformNumberOfModules (); SyncToModule++) {
          if (GetPciAddress (StdHeader, Socket, SyncToModule, &PciAddress, &AgesaStatus)) {
            PciAddress.Address.Function = FUNC_3;
            PciAddress.Address.Register = 0x1E4;
            // sync the other internal node F3x1E4[6:4]
            LibAmdPciRead (AccessWidth32, PciAddress, &LocalPciRegister, StdHeader);
            LocalPciRegister &= DataAnd;
            LocalPciRegister |= DataOr;
            LibAmdPciWrite (AccessWidth32, PciAddress, &LocalPciRegister, StdHeader);
          }
        }
      }
    }
  }
}

/**
 *  Writes to all nodes on the executing core's socket.
 *
 *  @param[in]     PciAddress    The Function and Register to update
 *  @param[in]     Mask          The bitwise AND mask to apply to the current register value
 *  @param[in]     Data          The bitwise OR mask to apply to the current register value
 *  @param[in]     StdHeader     Header for library and services.
 *
 */
VOID
ModifyCurrSocketPciMulti (
  IN       PCI_ADDR               *PciAddress,
  IN       UINT32                 Mask,
  IN       UINT32                 Data,
  IN       AMD_CONFIG_PARAMS      *StdHeader
  )
{
  UINT32 Socket;
  UINT32 Module;
  UINT32 Core;
  UINT32 LocalPciRegister;
  AGESA_STATUS AgesaStatus;
  PCI_ADDR Reg;

  IdentifyCore (StdHeader, &Socket, &Module, &Core, &AgesaStatus);

  for (Module = 0; Module < (UINT8)GetPlatformNumberOfModules (); Module++) {
    if (GetPciAddress (StdHeader, Socket, Module, &Reg, &AgesaStatus)) {
      Reg.Address.Function = PciAddress->Address.Function;
      Reg.Address.Register = PciAddress->Address.Register;
      LibAmdPciRead (AccessWidth32, Reg, &LocalPciRegister, StdHeader);
      LocalPciRegister &= Mask;
      LocalPciRegister |= Data;
      LibAmdPciWrite (AccessWidth32, Reg, &LocalPciRegister, StdHeader);
    }
  }
}

/**
 *  Check to see if the input CPU supports L3 dependent features.
 *
 * @param[in]    L3FeatureServices   L3 Feature family services.
 * @param[in]    Socket              Processor socket to check.
 * @param[in]    StdHeader           Config Handle for library, services.
 * @param[in]    PlatformConfig      Contains the runtime modifiable feature input data.
 *
 * @retval       TRUE                L3 dependent features are supported.
 * @retval       FALSE               L3 dependent features are not supported.
 *
 */
BOOLEAN
STATIC
F10IsL3FeatureSupported (
  IN       L3_FEATURE_FAMILY_SERVICES *L3FeatureServices,
  IN       UINT32 Socket,
  IN       AMD_CONFIG_PARAMS *StdHeader,
  IN       PLATFORM_CONFIGURATION *PlatformConfig
  )
{
  UINT32       Module;
  UINT32       LocalPciRegister;
  BOOLEAN      IsSupported;
  PCI_ADDR     PciAddress;
  AGESA_STATUS IgnoredStatus;

  IsSupported = FALSE;

  if (PlatformConfig->PlatformProfile.UseHtAssist) {
  for (Module = 0; Module < GetPlatformNumberOfModules (); Module++) {
    if (GetPciAddress (StdHeader, Socket, Module, &PciAddress, &IgnoredStatus)) {
      PciAddress.Address.Function = FUNC_3;
      PciAddress.Address.Register = NB_CAPS_REG;
      LibAmdPciRead (AccessWidth32, PciAddress, &LocalPciRegister, StdHeader);
      if (((NB_CAPS_REGISTER *) &LocalPciRegister)->L3Capable == 1) {
        IsSupported = TRUE;
      }
      break;
    }
  }
  }
  return IsSupported;
}

/**
 *    Main entry point for initializing the Thermal Control
 *    safety net feature.
 *
 *    This must be run by all Family 10h core 0s in the system.
 *
 * @param[in]  FamilySpecificServices  The current Family Specific Services.
 * @param[in]  CpuEarlyParamsPtr       Service parameters.
 * @param[in]  StdHeader               Config handle for library and services.
 */
VOID
F10PmThermalInit (
  IN       CPU_SPECIFIC_SERVICES *FamilySpecificServices,
  IN       AMD_CPU_EARLY_PARAMS  *CpuEarlyParamsPtr,
  IN       AMD_CONFIG_PARAMS     *StdHeader
  )
{
  UINT32    Core;
  UINT32    Module;
  UINT32    LocalPciRegister;
  UINT32    Socket;
  PCI_ADDR  PciAddress;
  AGESA_STATUS  IgnoredSts;

  IdentifyCore (StdHeader, &Socket, &Module, &Core, &IgnoredSts);
  ASSERT (Core == 0);

  if (GetPciAddress (StdHeader, Socket, 0, &PciAddress, &IgnoredSts)) {
    PciAddress.Address.Function = FUNC_3;
    PciAddress.Address.Register = NB_CAPS_REG;
    LibAmdPciRead (AccessWidth32, PciAddress, &LocalPciRegister, StdHeader);
    if (((NB_CAPS_REGISTER *) &LocalPciRegister)->HtcCapable == 1) {
      // Enable HTC
      PciAddress.Address.Register = HTC_REG;
      LibAmdPciRead (AccessWidth32, PciAddress, &LocalPciRegister, StdHeader);
      ((HTC_REGISTER *) &LocalPciRegister)->HtcSlewSel = 0;
      ((HTC_REGISTER *) &LocalPciRegister)->HtcEn = 1;
      LibAmdPciWrite (AccessWidth32, PciAddress, &LocalPciRegister, StdHeader);
    }
  }
}

/**
 * Multisocket call to determine if the BIOS is responsible for updating the
 * northbridge operating frequency and voltage.
 *
 * This function loops through all possible socket locations, checking whether
 * any populated sockets require NB COF VID programming.
 *
 * @param[in]  StdHeader         Config handle for library and services
 *
 * @retval     TRUE    BIOS needs to set up NB frequency and voltage
 * @retval     FALSE   BIOS does not need to set up NB frequency and voltage
 *
 */
BOOLEAN
GetSystemNbCofVidUpdateMulti (
  IN       AMD_CONFIG_PARAMS *StdHeader
  )
{
  UINT8    Module;
  UINT32   Socket;
  UINT32   NumberOfSockets;
  BOOLEAN  IgnoredBool;
  BOOLEAN  AtLeast1RequiresUpdate;
  PCI_ADDR PciAddress;
  AGESA_STATUS Ignored;
  CPU_SPECIFIC_SERVICES *FamilySpecificServices;

  NumberOfSockets = GetPlatformNumberOfSockets ();

  AtLeast1RequiresUpdate = FALSE;
  for (Socket = 0; Socket < NumberOfSockets; Socket++) {
    if (IsProcessorPresent (Socket, StdHeader)) {
      GetCpuServicesOfSocket (Socket, (CONST CPU_SPECIFIC_SERVICES **)&FamilySpecificServices, StdHeader);
      for (Module = 0; Module < GetPlatformNumberOfModules (); Module++) {
        if (GetPciAddress (StdHeader, (UINT8) Socket, Module, &PciAddress, &Ignored)) {
          break;
        }
      }
      if (FamilySpecificServices->IsNbCofInitNeeded (FamilySpecificServices, &PciAddress, &IgnoredBool, StdHeader)) {
        AtLeast1RequiresUpdate = TRUE;
        break;
      }
    }
  }
  return AtLeast1RequiresUpdate;
}

/**
 * Clear EnableCf8ExtCfg on all socket
 *
 * Clear F3x8C bit 14 EnableCf8ExtCfg
 *
 * @param[in]  StdHeader         Config handle for library and services
 *
 *
 */
VOID
DisableCf8ExtCfg (
  IN       AMD_CONFIG_PARAMS   *StdHeader
  )
{
  AGESA_STATUS  AgesaStatus;
  PCI_ADDR PciAddress;
  UINT32 Socket;
  UINT32 Module;
  UINT32 PciData;
  UINT32 LegacyPciAccess;

  ASSERT (IsBsp (StdHeader, &AgesaStatus));

  for (Socket = 0; Socket < GetPlatformNumberOfSockets (); Socket++) {
    for (Module = 0; Module < GetPlatformNumberOfModules (); Module++) {
      if (GetPciAddress (StdHeader, Socket, Module, &PciAddress, &AgesaStatus)) {
        PciAddress.Address.Function = FUNC_3;
        PciAddress.Address.Register = NB_CFG_HIGH_REG;
        LegacyPciAccess = ((1 << 31) + (PciAddress.Address.Register & 0xFC) + (PciAddress.Address.Function << 8) + (PciAddress.Address.Device << 11) + (PciAddress.Address.Bus << 16) + ((PciAddress.Address.Register & 0xF00) << (24 - 8)));
        // read from PCI register
        LibAmdIoWrite (AccessWidth32, IOCF8, &LegacyPciAccess, StdHeader);
        LibAmdIoRead (AccessWidth32, IOCFC, &PciData, StdHeader);
        // Disable Cf8ExtCfg
        PciData &= 0xFFFFBFFF;
        // write to PCI register
        LibAmdIoWrite (AccessWidth32, IOCF8, &LegacyPciAccess, StdHeader);
        LibAmdIoWrite (AccessWidth32, IOCFC, &PciData, StdHeader);
      }
    }
  }
}

/**
 * Ids Write PCI register to All node
 *
 *
 * @param[in] PciAddress    Pci address
 * @param[in]   Highbit       High bit position of the field in DWORD
 * @param[in]   Lowbit        Low bit position of the field in DWORD
 * @param[in] Value         Pointer to input value
 * @param[in] StdHeader     Standard configuration header
 *
 */
VOID
IdsLibPciWriteBitsToAllNode (
  IN       PCI_ADDR PciAddress,
  IN       UINT8 Highbit,
  IN       UINT8 Lowbit,
  IN       UINT32 *Value,
  IN OUT   AMD_CONFIG_PARAMS *StdHeader
  )
{
  UINT32 Socket;
  UINT32 Module;
  AGESA_STATUS IgnoreStatus;
  PCI_ADDR PciAddr;


  for (Socket = 0; Socket < GetPlatformNumberOfSockets (); Socket++) {
    for (Module = 0; Module < GetPlatformNumberOfModules (); Module++) {
      if (GetPciAddress (StdHeader, Socket, Module, &PciAddr, &IgnoreStatus)) {
        PciAddr.Address.Function = PciAddress.Address.Function;
        PciAddr.Address.Register = PciAddress.Address.Register;
        LibAmdPciWriteBits (PciAddr, Highbit, Lowbit, Value, StdHeader);
      }
    }
  }
}

/**
 *  Check to see if the input CPU supports HT Assist.
 *
 * @param[in]    HtAssistServices    HT Assist family services.
 * @param[in]    Socket              Processor socket to check.
 * @param[in]    StdHeader           Config Handle for library, services.
 *
 * @retval       TRUE               HT Assist is supported.
 * @retval       FALSE              HT Assist cannot be enabled.
 *
 */
BOOLEAN
STATIC
F10IsHtAssistSupported (
  IN       HT_ASSIST_FAMILY_SERVICES *HtAssistServices,
  IN       UINT32 Socket,
  IN       AMD_CONFIG_PARAMS *StdHeader
  )
{
  UINT32       Module;
  UINT32       PciRegister;
  BOOLEAN      IsSupported;
  PCI_ADDR     PciAddress;
  AGESA_STATUS IgnoredStatus;

  IsSupported = FALSE;
  for (Module = 0; Module < GetPlatformNumberOfModules (); Module++) {
    if (GetPciAddress (StdHeader, Socket, Module, &PciAddress, &IgnoredStatus)) {
      PciAddress.Address.Function = FUNC_3;
      PciAddress.Address.Register = NB_CAPS_REG;
      LibAmdPciRead (AccessWidth32, PciAddress, &PciRegister, StdHeader);
      if (((NB_CAPS_REGISTER *) &PciRegister)->L3Capable == 1) {
        IsSupported = TRUE;
      }
      break;
    }
  }
  return IsSupported;
}

/**
 * This routine checks whether any non-coherent links in the system
 * runs in HT1 mode; used to determine whether certain features
 * should be disabled when this routine returns TRUE.
 *
 * @param[in]      StdHeader  Standard AMD configuration parameters.
 *
 * @retval         TRUE       One of the non-coherent links in the
 *                            system runs in HT1 mode
 * @retval         FALSE      None of the non-coherent links in the
 *                            system is running in HT1 mode
 */
BOOLEAN
IsNonCoherentHt1 (
  IN       AMD_CONFIG_PARAMS *StdHeader
  )
{
  UINTN                 Link;
  UINT32                Socket;
  UINT32                Module;
  PCI_ADDR              PciAddress;
  AGESA_STATUS          AgesaStatus;
  HT_HOST_FEATS         HtHostFeats;
  CPU_SPECIFIC_SERVICES *CpuServices;

  for (Socket = 0; Socket < GetPlatformNumberOfSockets (); Socket++) {
    if (IsProcessorPresent (Socket, StdHeader)) {
      GetCpuServicesOfSocket (Socket, &CpuServices, StdHeader);
      for (Module = 0; Module < GetPlatformNumberOfModules (); Module++) {
        if (GetPciAddress (StdHeader, Socket, Module, &PciAddress, &AgesaStatus)) {
          HtHostFeats.HtHostValue = 0;
          Link = 0;
          while (CpuServices->GetNextHtLinkFeatures (CpuServices, &Link, &PciAddress, &HtHostFeats, StdHeader)) {
            // Return TRUE and exit routine once we find a non-coherent link in HT1
            if ((HtHostFeats.HtHostFeatures.NonCoherent == 1) && (HtHostFeats.HtHostFeatures.Ht1 == 1)) {
              return TRUE;
            }
          }
        }
      }
    }
  }

  return FALSE;
}

/**
 *
 *  InitializeCacheFlushOnHaltFeature
 *
 *    CPU feature leveling. Enable Cpu Cache Flush On Halt Function
 *
 *    @param[in]       EntryPoint       Timepoint designator.
 *    @param[in]       PlatformConfig   Contains the runtime modifiable feature input data.
 *    @param[in,out]   StdHeader        Pointer to AMD_CONFIG_PARAMS struct.
 *
 *    @return          The most severe status of any family specific service.
 */
STATIC AGESA_STATUS
InitializeCacheFlushOnHaltFeature (
  IN       UINT64                 EntryPoint,
  IN       PLATFORM_CONFIGURATION *PlatformConfig,
  IN OUT   AMD_CONFIG_PARAMS      *StdHeader
  )
{
  UINT32 Socket;
  UINT32 Module;
  UINT32 AndMask;
  UINT32 OrMask;
  UINT32 PciRegister;
  PCI_ADDR PciAddress;
  PCI_ADDR CfohPciAddress;
  AGESA_STATUS AgesaStatus;
  CPU_CFOH_FAMILY_SERVICES *FamilySpecificServices;

  ASSERT (IsBsp (StdHeader, &AgesaStatus));

  FamilySpecificServices = NULL;
  AndMask = 0xFFFFFFFF;
  OrMask = 0x00000000;
  PciRegister = 0;
  AgesaStatus = AGESA_SUCCESS;

  for (Socket = 0; Socket < GetPlatformNumberOfSockets (); Socket++) {
    if (IsProcessorPresent (Socket, StdHeader)) {

      // Get services for the socket
      GetFeatureServicesOfSocket (&CacheFlushOnHaltFamilyServiceTable, Socket, (CONST VOID **)&FamilySpecificServices, StdHeader);
      if (FamilySpecificServices != NULL) {
        FamilySpecificServices->GetCacheFlushOnHaltRegister (FamilySpecificServices, &CfohPciAddress, &AndMask, &OrMask, StdHeader);

        // Get the Or Mask value from IDS
        IDS_OPTION_HOOK (IDS_CACHE_FLUSH_HLT, &OrMask, StdHeader);

        // Set Cache Flush On Halt register
        for (Module = 0; Module < (UINT8)GetPlatformNumberOfModules (); Module++) {
          if (GetPciAddress (StdHeader, Socket, Module, &PciAddress, &AgesaStatus)) {
            PciAddress.Address.Function = CfohPciAddress.Address.Function;
            PciAddress.Address.Register = CfohPciAddress.Address.Register;
            LibAmdPciRead (AccessWidth32, PciAddress, &PciRegister, StdHeader);
            PciRegister &= AndMask;
            PciRegister |= OrMask;
            LibAmdPciWrite (AccessWidth32, PciAddress, &PciRegister, StdHeader);
          }
        }
      }
    }
  }
  return AgesaStatus;
}

/**
 * Multisocket call to loop through all possible socket locations and Nb Pstates,
 * comparing the NB frequencies to determine the slowest system and P0 frequency
 *
 * @param[in]  PlatformConfig      Platform profile/build option config structure.
 * @param[out] MinSysNbFreq        NB frequency numerator for the system in MHz
 * @param[out] MinP0NbFreq         NB frequency numerator for P0 in MHz
 * @param[in]  StdHeader           Config handle for library and services
 */
VOID
GetMinNbCofMulti (
  IN       PLATFORM_CONFIGURATION *PlatformConfig,
     OUT   UINT32                 *MinSysNbFreq,
     OUT   UINT32                 *MinP0NbFreq,
  IN       AMD_CONFIG_PARAMS      *StdHeader
  )
{
  UINT32                Socket;
  UINT32                Module;
  UINT32                CurrMinFreq;
  UINT32                CurrMaxFreq;
  PCI_ADDR              PciAddress;
  AGESA_STATUS          Ignored;
  CPU_SPECIFIC_SERVICES *FamilySpecificServices;
  AGESA_STATUS AgesaStatus;

  *MinSysNbFreq = 0xFFFFFFFF;
  *MinP0NbFreq  = 0xFFFFFFFF;

  for (Socket = 0; Socket < GetPlatformNumberOfSockets (); Socket++) {
    if (IsProcessorPresent (Socket, StdHeader)) {
      GetCpuServicesOfSocket (Socket, (CONST CPU_SPECIFIC_SERVICES **)&FamilySpecificServices, StdHeader);
      for (Module = 0; Module < GetPlatformNumberOfModules (); Module++) {
        if (GetPciAddress (StdHeader, Socket, Module, &PciAddress, &Ignored )) {
          break;
        }
      }


      AgesaStatus = FamilySpecificServices->GetMinMaxNbFrequency (FamilySpecificServices,
                                                      PlatformConfig,
                                                      &PciAddress,
                                                      &CurrMinFreq,
                                                      &CurrMaxFreq,
                                                      StdHeader);
      ASSERT (AgesaStatus == AGESA_SUCCESS);
      ASSERT ((CurrMinFreq != 0) && (CurrMaxFreq != 0));
      // Determine the slowest NB Pmin frequency
      if (CurrMinFreq < *MinSysNbFreq) {
        *MinSysNbFreq = CurrMinFreq;
      }

      // Determine the slowest NB P0 frequency
      if (CurrMaxFreq < *MinP0NbFreq) {
        *MinP0NbFreq = CurrMaxFreq;
      }
    }
  }
}

/**
 * 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    LocalMsrRegister;
  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, &LocalMsrRegister, StdHeader);
    if (((PSTATE_MSR *) &LocalMsrRegister)->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);
}

/**
 *  Check to see if the input CPU is running in the optimal configuration.
 *
 * @param[in]    HtAssistServices    HT Assist family services.
 * @param[in]    Socket              Processor socket to check.
 * @param[in]    StdHeader           Config Handle for library, services.
 *
 * @retval       TRUE               HT Assist is running sub-optimally.
 * @retval       FALSE              HT Assist is running optimally.
 *
 */
STATIC BOOLEAN
F10IsNonOptimalConfig (
  IN       HT_ASSIST_FAMILY_SERVICES *HtAssistServices,
  IN       UINT32 Socket,
  IN       AMD_CONFIG_PARAMS *StdHeader
  )
{
  BOOLEAN      IsNonOptimal;
  BOOLEAN      IsMemoryPresent;
  UINT32       Module;
  UINT32       PciRegister;
  PCI_ADDR     PciAddress;
  AGESA_STATUS IgnoredStatus;

  IsNonOptimal = FALSE;
  for (Module = 0; Module < GetPlatformNumberOfModules (); Module++) {
    if (GetPciAddress (StdHeader, Socket, Module, &PciAddress, &IgnoredStatus)) {
      IsMemoryPresent = FALSE;
      PciAddress.Address.Function = FUNC_2;
      PciAddress.Address.Register = DRAM_CFG_HI_REG0;

      LibAmdPciRead (AccessWidth32, PciAddress, &PciRegister, StdHeader);
      if (((DRAM_CFG_HI_REGISTER *) &PciRegister)->MemClkFreqVal == 1) {
        IsMemoryPresent = TRUE;
        if (((DRAM_CFG_HI_REGISTER *) &PciRegister)->MemClkFreq < 4) {
          IsNonOptimal = TRUE;
          break;
        }
      }

      PciAddress.Address.Register = DRAM_CFG_HI_REG1;

      LibAmdPciRead (AccessWidth32, PciAddress, &PciRegister, StdHeader);
      if (((DRAM_CFG_HI_REGISTER *) &PciRegister)->MemClkFreqVal == 1) {
        IsMemoryPresent = TRUE;
        if (((DRAM_CFG_HI_REGISTER *) &PciRegister)->MemClkFreq < 4) {
          IsNonOptimal = TRUE;
          break;
        }
      }
      if (!IsMemoryPresent) {
        IsNonOptimal = TRUE;
        break;
      }
    }
  }
  return IsNonOptimal;
}

UINT8
PciRead8 (
  UINT8   Segment,
  UINT8   Bus,
  UINT8   DevFunc,
  UINT8   Register
  )
/*++

Routine Description:
  Perform an one byte PCI config cycle read
    
Arguments:
  Segment   - PCI Segment ACPI _SEG
  Bus       - PCI Bus
  DevFunc   - PCI Device(7:3) and Func(2:0)
  Register  - PCI config space register

Returns:
  Data read from PCI config space

--*/
{
  EFI_STATUS  Status;
  UINT32      PciAddress;
  UINT32      PciAddress1;
  UINT8       Data;

  PciAddress = GetPciAddress (Segment, Bus, DevFunc, Register);
  //
  // Set bit 31 for PCI config access
  //
  PciAddress1 = PciAddress;
  PciAddress  = ((PciAddress & 0xFFFFFFFC) | (0x80000000));

  Status      = EfiIoWrite (EfiCpuIoWidthUint32, PCI_CONFIG_INDEX_PORT, 1, &PciAddress);

  if (EFI_ERROR (Status)) {
    return 0;
  }

  EfiIoRead (EfiCpuIoWidthUint8, (PCI_CONFIG_DATA_PORT + (PciAddress1 & 0x3)), 1, &Data);

  return Data;
}

/**
 *  Hook before the probe filter initialization sequence.
 *
 * @param[in]    HtAssistServices    HT Assist family services.
 * @param[in]    Socket              Processor socket to check.
 * @param[in]    StdHeader           Config Handle for library, services.
 *
 */
VOID
STATIC
F10HookBeforeInit (
  IN       HT_ASSIST_FAMILY_SERVICES *HtAssistServices,
  IN       UINT32 Socket,
  IN       AMD_CONFIG_PARAMS *StdHeader
  )
{
  UINT32          Module;
  UINT32          PciRegister;
  UINT32          PfCtrlRegister;
  PCI_ADDR        PciAddress;
  CPU_LOGICAL_ID  LogicalId;
  AGESA_STATUS    IgnoredStatus;
  UINT32          PackageType;

  GetLogicalIdOfSocket (Socket, &LogicalId, StdHeader);
  PackageType = LibAmdGetPackageType (StdHeader);

  PciRegister = 0;
  ((PROBE_FILTER_CTRL_REGISTER *) &PciRegister)->PFWayNum = 2;
  ((PROBE_FILTER_CTRL_REGISTER *) &PciRegister)->PFSubCacheEn = 15;
  ((PROBE_FILTER_CTRL_REGISTER *) &PciRegister)->PFLoIndexHashEn = 1;
  for (Module = 0; Module < GetPlatformNumberOfModules (); Module++) {
    if (GetPciAddress (StdHeader, Socket, Module, &PciAddress, &IgnoredStatus)) {
      PciAddress.Address.Function = FUNC_3;
      PciAddress.Address.Register = PROBE_FILTER_CTRL_REG;
      LibAmdPciRead (AccessWidth32, PciAddress, &PfCtrlRegister, StdHeader);
      ((PROBE_FILTER_CTRL_REGISTER *) &PciRegister)->PFPreferredSORepl =
        ((PROBE_FILTER_CTRL_REGISTER *) &PfCtrlRegister)->PFPreferredSORepl;
      LibAmdPciWrite (AccessWidth32, PciAddress, &PciRegister, StdHeader);

      // Assumption: all socket use the same CPU package.
      if (((LogicalId.Revision & AMD_F10_D0) != 0) && (PackageType == PACKAGE_TYPE_C32)) {
        // Apply erratum #384
        // Set F2x11C[13:12] = 11b
        PciAddress.Address.Function = FUNC_2;
        PciAddress.Address.Register = 0x11C;
        LibAmdPciRead (AccessWidth32, PciAddress, &PciRegister, StdHeader);
        PciRegister |= 0x3000;
        LibAmdPciWrite (AccessWidth32, PciAddress, &PciRegister, StdHeader);
      }
    }
  }
}