/**
* Family 16h Mullins core 0 entry point for performing the necessary steps for core
* P-states after a warm reset has occurred.
*
* The steps are as follows:
* 1. If MSRC001_0071[CurPstate] = MSRC001_0071[CurPstateLimit], then skip step 3 for that core.
* 2. Write 0 to MSRC001_0062[PstateCmd] on all cores in the processor.
* 3. Wait for MSRC001_0071[CurCpuFid, CurCpuDid] = [CpuFid, CpuDid] from
* MSRC001_00[6B:64] indexed by MSRC001_0071[CurPstateLimit].
* 4. Write MSRC001_0061[PstateMaxVal] to MSRC001_0062[PstateCmd] on all
* cores in the processor.
* 5. Wait for MSRC001_0071[CurCpuFid, CurCpuDid] = [CpuFid, CpuDid] from
* MSRC001_00[6B:64] indexed by MSRC001_0061[PstateMaxVal].
* 6. If MSRC001_0071[CurPstateLimit] != MSRC001_0071[CurPstate], wait for
* MSRC001_0071[CurCpuVid] = [CpuVid] from MSRC001_00[6B:64] indexed by
* MSRC001_0061[PstateMaxVal].
* 7. Wait for MSRC001_0063[CurPstate] = MSRC001_0062[PstateCmd].
*
* @param[in] FamilySpecificServices The current Family Specific Services.
* @param[in] CpuEarlyParamsPtr Service parameters
* @param[in] StdHeader Config handle for library and services.
*
*/
VOID
F16MlPmCoreAfterReset (
IN CPU_SPECIFIC_SERVICES *FamilySpecificServices,
IN AMD_CPU_EARLY_PARAMS *CpuEarlyParamsPtr,
IN AMD_CONFIG_PARAMS *StdHeader
)
{
UINT32 Core;
UINT32 HwPsMaxVal;
PCI_ADDR PciAddress;
AP_TASK TaskPtr;
IDS_HDT_CONSOLE (CPU_TRACE, " F16MlPmCoreAfterReset\n");
GetCurrentCore (&Core, StdHeader);
ASSERT (Core == 0);
PciAddress.AddressValue = MAKE_SBDFO (0, 0, 24, FUNC_3, CPTC2_REG);
LibAmdPciRead (AccessWidth32, PciAddress, &HwPsMaxVal, StdHeader);
HwPsMaxVal = ((CLK_PWR_TIMING_CTRL2_REGISTER *) &HwPsMaxVal)->HwPstateMaxVal;
// Launch each local core to perform steps 1 through 4.
TaskPtr.FuncAddress.PfApTask = F16MlPmCoreAfterResetPhase1OnCore;
TaskPtr.DataTransfer.DataSizeInDwords = 0;
TaskPtr.ExeFlags = WAIT_FOR_CORE;
ApUtilRunCodeOnAllLocalCoresAtEarly (&TaskPtr, StdHeader, CpuEarlyParamsPtr);
// Launch each local core to perform steps 5 through 7.
TaskPtr.FuncAddress.PfApTaskI = F16MlPmCoreAfterResetPhase2OnCore;
TaskPtr.DataTransfer.DataSizeInDwords = 1;
TaskPtr.DataTransfer.DataPtr = &HwPsMaxVal;
TaskPtr.DataTransfer.DataTransferFlags = 0;
TaskPtr.ExeFlags = WAIT_FOR_CORE;
ApUtilRunCodeOnAllLocalCoresAtEarly (&TaskPtr, StdHeader, CpuEarlyParamsPtr);
}
/**
* Enable Hardware C1e on a family 10h CPU.
*
* @param[in] HwC1eServices Pointer to this CPU's HW C1e family services.
* @param[in] EntryPoint Timepoint designator.
* @param[in] PlatformConfig Contains the runtime modifiable feature input data.
* @param[in] StdHeader Config Handle for library, services.
*
* @return AGESA_SUCCESS Always succeeds.
*
*/
AGESA_STATUS
STATIC
F10InitializeHwC1e (
IN HW_C1E_FAMILY_SERVICES *HwC1eServices,
IN UINT64 EntryPoint,
IN PLATFORM_CONFIGURATION *PlatformConfig,
IN AMD_CONFIG_PARAMS *StdHeader
)
{
UINT64 MsrRegister;
AP_TASK TaskPtr;
MsrRegister = 0;
((INTPEND_MSR *) &MsrRegister)->IoMsgAddr = PlatformConfig->C1ePlatformData;
((INTPEND_MSR *) &MsrRegister)->IoMsgData = 0xC1;
((INTPEND_MSR *) &MsrRegister)->IoRd = 1;
((INTPEND_MSR *) &MsrRegister)->C1eOnCmpHalt = 1;
((INTPEND_MSR *) &MsrRegister)->SmiOnCmpHalt = 0;
TaskPtr.FuncAddress.PfApTaskI = F10InitializeHwC1eOnCore;
TaskPtr.DataTransfer.DataSizeInDwords = 2;
TaskPtr.DataTransfer.DataPtr = &MsrRegister;
TaskPtr.DataTransfer.DataTransferFlags = 0;
TaskPtr.ExeFlags = WAIT_FOR_CORE;
ApUtilRunCodeOnAllLocalCoresAtEarly (&TaskPtr, StdHeader, NULL);
return AGESA_SUCCESS;
}
/**
* Enable IO Cstate on a family 14h CPU.
* Implement steps 1 to 3 of BKDG section 2.5.4.2.9 BIOS Requirements for Initialization
*
* @param[in] IoCstateServices Pointer to this CPU's IO Cstate family services.
* @param[in] EntryPoint Timepoint designator.
* @param[in] PlatformConfig Contains the runtime modifiable feature input data.
* @param[in] StdHeader Config Handle for library, services.
*
* @return AGESA_SUCCESS Always succeeds.
*
*/
AGESA_STATUS
STATIC
F14InitializeIoCstate (
IN IO_CSTATE_FAMILY_SERVICES *IoCstateServices,
IN UINT64 EntryPoint,
IN PLATFORM_CONFIGURATION *PlatformConfig,
IN AMD_CONFIG_PARAMS *StdHeader
)
{
UINT32 i;
UINT32 MaxEnabledPstate;
UINT32 PciRegister;
UINT64 MsrRegister;
AP_TASK TaskPtr;
PCI_ADDR PciAddress;
if ((EntryPoint & CPU_FEAT_AFTER_PM_INIT) != 0) {
for (i = MSR_PSTATE_7; i > MSR_PSTATE_0; i--) {
LibAmdMsrRead (i, &MsrRegister, StdHeader);
if (((PSTATE_MSR *) &MsrRegister)->PsEnable == 1) {
break;
}
}
MaxEnabledPstate = i - MSR_PSTATE_0;
// Initialize MSRC001_0073[CstateAddr] on each core to a region of
// the IO address map with 8 consecutive available addresses.
MsrRegister = 0;
((CSTATE_ADDRESS_MSR *) &MsrRegister)->CstateAddr = PlatformConfig->CStateIoBaseAddress;
ASSERT ((((CSTATE_ADDRESS_MSR *) &MsrRegister)->CstateAddr != 0) &&
(((CSTATE_ADDRESS_MSR *) &MsrRegister)->CstateAddr <= 0xFFF8));
TaskPtr.FuncAddress.PfApTaskI = F14InitializeIoCstateOnCore;
TaskPtr.DataTransfer.DataSizeInDwords = 2;
TaskPtr.DataTransfer.DataPtr = &MsrRegister;
TaskPtr.DataTransfer.DataTransferFlags = 0;
TaskPtr.ExeFlags = WAIT_FOR_CORE;
ApUtilRunCodeOnAllLocalCoresAtEarly (&TaskPtr, StdHeader, NULL);
// Program D18F4x1A8[PService] to the index of lowest-performance
// P-state with MSRC001_00[6B:64][PstateEn]==1 on core 0.
PciAddress.AddressValue = CPU_STATE_PM_CTRL0_PCI_ADDR;
LibAmdPciRead (AccessWidth32, PciAddress, &PciRegister, StdHeader);
((CPU_STATE_PM_CTRL0_REGISTER *) &PciRegister)->PService = MaxEnabledPstate;
LibAmdPciWrite (AccessWidth32, PciAddress, &PciRegister, StdHeader);
// Program D18F4x1AC[CstPminEn] to 1.
PciAddress.AddressValue = CPU_STATE_PM_CTRL1_PCI_ADDR;
LibAmdPciRead (AccessWidth32, PciAddress, &PciRegister, StdHeader);
((CPU_STATE_PM_CTRL1_REGISTER *) &PciRegister)->CstPminEn = 1;
LibAmdPciWrite (AccessWidth32, PciAddress, &PciRegister, StdHeader);
}
return AGESA_SUCCESS;
}
/**
* Transitions the executing processor to the desired P-state.
*
* This function implements the AMD_CPU_EARLY_PARAMS.MemInitPState parameter, and is
* run by all processor core 0s.
*
* @param[in] StdHeader Config handle for library and services
* @param[in] CpuEarlyParamsPtr Required input parameters for early CPU initialization
*
*/
VOID
STATIC
GoToMemInitPstateCore0 (
IN AMD_CONFIG_PARAMS *StdHeader,
IN AMD_CPU_EARLY_PARAMS *CpuEarlyParamsPtr
)
{
AP_TASK TaskPtr;
TaskPtr.FuncAddress.PfApTaskC = GoToMemInitPstateCore;
TaskPtr.DataTransfer.DataSizeInDwords = 0;
TaskPtr.ExeFlags = WAIT_FOR_CORE | PASS_EARLY_PARAMS;
ApUtilRunCodeOnAllLocalCoresAtEarly (&TaskPtr, StdHeader, CpuEarlyParamsPtr);
}
/**
* 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);
}
/**
* 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;
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
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;
((CLK_PWR_TIMING_CTRL2_REGISTER *) &OrMask)->SlamTimeMode = 2;
ModifyCurrentSocketPci (&PciAddress, AndMask, OrMask, StdHeader);
}
if (IsWarmReset (StdHeader) && !PviModeFlag) {
// Configure PsiVid
F10PmVrmLowPowerModeEnable (FamilySpecificServices, CpuEarlyParams, StdHeader);
}
}
/**
* Family 10h core 0 entry point for performing the family 10h Processor-
* Systemboard Power Delivery Check.
*
* The steps are as follows:
* 1. Starting with P0, loop through all P-states until a passing state is
* found. A passing state is one in which the current required by the
* CPU is less than the maximum amount of current that the system can
* provide to the CPU. If P0 is under the limit, no further action is
* necessary.
* 2. If at least one P-State is under the limit & at least one P-State is
* over the limit, the BIOS must:
* a. If the processor's current P-State is disabled by the power check,
* then the BIOS must request a transition to an enabled P-state
* using MSRC001_0062[PstateCmd] and wait for MSRC001_0063[CurPstate]
* to reflect the new value.
* b. Copy the contents of the enabled P-state MSRs to the highest
* performance P-state locations.
* c. Request a P-state transition to the P-state MSR containing the
* COF/VID values currently applied.
* d. On revision E systems with CPUID Fn8000_0007[CPB]=1, if P0 is disabled then
* program F4x15C[BoostSrc]=0. This step uses hardware P-state numbering.
* e. Adjust the following P-state parameters affected by the P-state
* MSR copy by subtracting the number of P-states that are disabled
* by the power check.
* 1. F3x64[HtcPstateLimit]
* 2. F3x68[StcPstateLimit]
* 3. F3xDC[PstateMaxVal]
* 3. If all P-States are over the limit, the BIOS must:
* a. If the processor's current P-State is !=F3xDC[PstateMaxVal], then
* write F3xDC[PstateMaxVal] to MSRC001_0062[PstateCmd] and wait for
* MSRC001_0063[CurPstate] to reflect the new value.
* b. If F3xDC[PstateMaxVal]!= 000b, copy the contents of the P-state
* MSR pointed to by F3xDC[PstateMaxVal] to MSRC001_0064 and set
* MSRC001_0064[PstateEn]
* c. Write 000b to MSRC001_0062[PstateCmd] and wait for MSRC001_0063
* [CurPstate] to reflect the new value.
* d. Adjust the following P-state parameters to zero on revision D and earlier processors.
* On revision E processors adjust the following fields to F4x15C[NumBoostStates]:
* 1. F3x64[HtcPstateLimit]
* 2. F3x68[StcPstateLimit]
* 3. F3xDC[PstateMaxVal]
* e. For revision E systems with CPUID Fn8000_0007[CPB]=1, program F4x15C[BoostSrc]=0.
*
* @param[in] FamilySpecificServices The current Family Specific Services.
* @param[in] CpuEarlyParams Service parameters
* @param[in] StdHeader Config handle for library and services.
*
*/
VOID
F10PmPwrCheck (
IN CPU_SPECIFIC_SERVICES *FamilySpecificServices,
IN AMD_CPU_EARLY_PARAMS *CpuEarlyParams,
IN AMD_CONFIG_PARAMS *StdHeader
)
{
UINT8 DisPsNum;
UINT8 PsMaxVal;
UINT8 Pstate;
UINT32 ProcIddMax;
UINT32 LocalPciRegister;
UINT32 Socket;
UINT32 Module;
UINT32 Core;
UINT32 AndMask;
UINT32 OrMask;
UINT32 PstateLimit;
PCI_ADDR PciAddress;
UINT64 LocalMsrRegister;
AP_TASK TaskPtr;
AGESA_STATUS IgnoredSts;
PWRCHK_ERROR_DATA ErrorData;
// get the socket number
IdentifyCore (StdHeader, &Socket, &Module, &Core, &IgnoredSts);
ErrorData.SocketNumber = (UINT8)Socket;
ASSERT (Core == 0);
// get the Max P-state value
for (PsMaxVal = NM_PS_REG - 1; PsMaxVal != 0; --PsMaxVal) {
LibAmdMsrRead (PS_REG_BASE + PsMaxVal, &LocalMsrRegister, StdHeader);
if (((PSTATE_MSR *) &LocalMsrRegister)->PsEnable == 1) {
break;
}
}
ErrorData.HwPstateNumber = (UINT8) (PsMaxVal + 1);
DisPsNum = 0;
for (Pstate = 0; Pstate < ErrorData.HwPstateNumber; Pstate++) {
if (FamilySpecificServices->GetProcIddMax (FamilySpecificServices, Pstate, &ProcIddMax, StdHeader)) {
if (ProcIddMax > CpuEarlyParams->PlatformConfig.VrmProperties[CoreVrm].CurrentLimit) {
// Add to event log the Pstate that exceeded the current limit
PutEventLog (AGESA_WARNING,
CPU_EVENT_PM_PSTATE_OVERCURRENT,
Socket, Pstate, 0, 0, StdHeader);
DisPsNum++;
} else {
break;
}
}
}
// If all P-state registers are disabled, move P[PsMaxVal] to P0
// and transition to P0, then wait for CurPstate = 0
ErrorData.AllowablePstateNumber = ((PsMaxVal + 1) - DisPsNum);
// We only need to log this event on the BSC
if (ErrorData.AllowablePstateNumber == 0) {
PutEventLog (AGESA_FATAL,
CPU_EVENT_PM_ALL_PSTATE_OVERCURRENT,
Socket, 0, 0, 0, StdHeader);
}
if (DisPsNum != 0) {
GetPciAddress (StdHeader, Socket, Module, &PciAddress, &IgnoredSts);
// Check if CPB is supported. if yes, get the number of boost states.
ErrorData.NumberofBoostStates = F10GetNumberOfBoostedPstatesOnCore (StdHeader);
TaskPtr.FuncAddress.PfApTaskI = F10PmPwrCheckCore;
TaskPtr.DataTransfer.DataSizeInDwords = SIZE_IN_DWORDS (PWRCHK_ERROR_DATA);
TaskPtr.DataTransfer.DataPtr = &ErrorData;
TaskPtr.DataTransfer.DataTransferFlags = 0;
TaskPtr.ExeFlags = WAIT_FOR_CORE;
ApUtilRunCodeOnAllLocalCoresAtEarly (&TaskPtr, StdHeader, CpuEarlyParams);
// Final Step 1
// For revision E systems with CPUID Fn8000_0007[CPB]=1, if P0 is disabled then
// program F4x15C[BoostSrc]=0. This step uses hardware P-state numbering.
if (ErrorData.NumberofBoostStates == 1) {
PciAddress.Address.Function = FUNC_4;
PciAddress.Address.Register = CPB_CTRL_REG;
LibAmdPciRead (AccessWidth32, PciAddress, &LocalPciRegister, StdHeader);
((CPB_CTRL_REGISTER *) &LocalPciRegister)->BoostSrc = 0;
LibAmdPciWrite (AccessWidth32, PciAddress, &LocalPciRegister, StdHeader);
}
// Final Step 2
// F3x64[HtPstatelimit] -= disPsNum
// F3x68[StcPstateLimit]-= disPsNum
// F3xDC[PstateMaxVal]-= disPsNum
PciAddress.Address.Function = FUNC_3;
PciAddress.Address.Register = HTC_REG;
AndMask = 0xFFFFFFFF;
((HTC_REGISTER *) &AndMask)->HtcPstateLimit = 0;
OrMask = 0x00000000;
LibAmdPciRead (AccessWidth32, PciAddress, &LocalPciRegister, StdHeader); // F3x64
PstateLimit = ((HTC_REGISTER *) &LocalPciRegister)->HtcPstateLimit;
if (ErrorData.AllowablePstateNumber != 0) {
if (PstateLimit > DisPsNum) {
PstateLimit -= DisPsNum;
((HTC_REGISTER *) &OrMask)->HtcPstateLimit = PstateLimit;
}
} else {
((HTC_REGISTER *) &OrMask)->HtcPstateLimit = ErrorData.NumberofBoostStates;
}
ModifyCurrentSocketPci (&PciAddress, AndMask, OrMask, StdHeader); // F3x64
PciAddress.Address.Register = STC_REG;
AndMask = 0xFFFFFFFF;
((STC_REGISTER *) &AndMask)->StcPstateLimit = 0;
OrMask = 0x00000000;
LibAmdPciRead (AccessWidth32, PciAddress, &LocalPciRegister, StdHeader); // F3x68
PstateLimit = ((STC_REGISTER *) &LocalPciRegister)->StcPstateLimit;
if (ErrorData.AllowablePstateNumber != 0) {
if (PstateLimit > DisPsNum) {
PstateLimit -= DisPsNum;
((STC_REGISTER *) &OrMask)->StcPstateLimit = PstateLimit;
}
} else {
((STC_REGISTER *) &OrMask)->StcPstateLimit = ErrorData.NumberofBoostStates;
}
ModifyCurrentSocketPci (&PciAddress, AndMask, OrMask, StdHeader); // F3x68
PciAddress.Address.Register = CPTC2_REG;
AndMask = 0xFFFFFFFF;
((CLK_PWR_TIMING_CTRL2_REGISTER *) &AndMask)->PstateMaxVal = 0;
OrMask = 0x00000000;
LibAmdPciRead (AccessWidth32, PciAddress, &LocalPciRegister, StdHeader); // F3xDC
PstateLimit = ((CLK_PWR_TIMING_CTRL2_REGISTER *) &LocalPciRegister)->PstateMaxVal;
if (ErrorData.AllowablePstateNumber != 0) {
if (PstateLimit > DisPsNum) {
PstateLimit -= DisPsNum;
((CLK_PWR_TIMING_CTRL2_REGISTER *) &OrMask)->PstateMaxVal = PstateLimit;
}
} else {
((CLK_PWR_TIMING_CTRL2_REGISTER *) &OrMask)->PstateMaxVal = ErrorData.NumberofBoostStates;
}
ModifyCurrentSocketPci (&PciAddress, AndMask, OrMask, StdHeader); // F3xDC
// Now that P0 has changed, recalculate VSSlamTime
F10ProgramVSSlamTimeOnSocket (&PciAddress, CpuEarlyParams, StdHeader);
}
}
/**
* Core 0 task to enable message-based C1e on a family 10h CPU.
*
* @param[in] MsgBasedC1eServices Pointer to this CPU's HW C1e family services.
* @param[in] EntryPoint Timepoint designator.
* @param[in] PlatformConfig Contains the runtime modifiable feature input data.
* @param[in] StdHeader Config Handle for library, services.
*
* @return AGESA_SUCCESS Always succeeds.
*
*/
AGESA_STATUS
STATIC
F10InitializeMsgBasedC1e (
IN MSG_BASED_C1E_FAMILY_SERVICES *MsgBasedC1eServices,
IN UINT64 EntryPoint,
IN PLATFORM_CONFIGURATION *PlatformConfig,
IN AMD_CONFIG_PARAMS *StdHeader
)
{
UINT32 AndMask;
UINT32 Core;
UINT32 Module;
UINT32 OrMask;
UINT32 PciRegister;
UINT32 Socket;
AP_TASK TaskPtr;
PCI_ADDR PciAddress;
AGESA_STATUS IgnoredSts;
if ((EntryPoint & (CPU_FEAT_AFTER_POST_MTRR_SYNC | CPU_FEAT_AFTER_RESUME_MTRR_SYNC)) != 0) {
// Note that this core 0 does NOT have the ability to launch
// any of its cores. Attempting to do so could lead to a system
// hang.
// Set F3xA0[IdleExitEn] = 1
PciAddress.Address.Function = FUNC_3;
PciAddress.Address.Register = PW_CTL_MISC_REG;
AndMask = 0xFFFFFFFF;
OrMask = 0;
((POWER_CTRL_MISC_REGISTER *) &OrMask)->IdleExitEn = 1;
ModifyCurrentSocketPci (&PciAddress, AndMask, OrMask, StdHeader); // F3xA0
// Set F3x188[EnStpGntOnFlushMaskWakeup] = 1
PciAddress.Address.Register = NB_EXT_CFG_LO_REG;
OrMask = 0;
((NB_EXT_CFG_LO_REGISTER *) &OrMask)->EnStpGntOnFlushMaskWakeup = 1;
ModifyCurrentSocketPci (&PciAddress, AndMask, OrMask, StdHeader); // F3x188
// Set F3xD4[MTC1eEn] = 1, F3xD4[CacheFlushImmOnAllHalt] = 1
// Set F3xD4[StutterScrubEn] = 1 if scrubbing is enabled
((CLK_PWR_TIMING_CTRL_REGISTER *) &AndMask)->StutterScrubEn = 0;
OrMask = 0;
((CLK_PWR_TIMING_CTRL_REGISTER *) &OrMask)->MTC1eEn = 1;
((CLK_PWR_TIMING_CTRL_REGISTER *) &OrMask)->CacheFlushImmOnAllHalt = 1;
IdentifyCore (StdHeader, &Socket, &Module, &Core, &IgnoredSts);
for (Module = 0; Module < (UINT8)GetPlatformNumberOfModules (); Module++) {
if (GetPciAddress (StdHeader, Socket, Module, &PciAddress, &IgnoredSts)) {
PciAddress.Address.Function = FUNC_3;
PciAddress.Address.Register = CPTC0_REG;
if (IsDramScrubberEnabled (PciAddress, StdHeader)) {
((CLK_PWR_TIMING_CTRL_REGISTER *) &OrMask)->StutterScrubEn = 1;
} else {
((CLK_PWR_TIMING_CTRL_REGISTER *) &OrMask)->StutterScrubEn = 0;
}
LibAmdPciRead (AccessWidth32, PciAddress, &PciRegister, StdHeader);
PciRegister &= AndMask;
PciRegister |= OrMask;
LibAmdPciWrite (AccessWidth32, PciAddress, &PciRegister, StdHeader);
}
}
} else if (EntryPoint == CPU_FEAT_AFTER_PM_INIT) {
// At early, this core 0 can launch its subordinate cores.
TaskPtr.FuncAddress.PfApTaskI = F10InitializeMsgBasedC1eOnCore;
TaskPtr.DataTransfer.DataSizeInDwords = 1;
TaskPtr.DataTransfer.DataPtr = &PlatformConfig->C1ePlatformData;
TaskPtr.DataTransfer.DataTransferFlags = 0;
TaskPtr.ExeFlags = WAIT_FOR_CORE;
ApUtilRunCodeOnAllLocalCoresAtEarly (&TaskPtr, StdHeader, NULL);
}
return AGESA_SUCCESS;
}
/**
* Family 10h core 0 entry point for performing the "Northbridge COF and
* VID Configuration" algorithm.
*
* The steps are as follows:
* 1. Determine if the algorithm is necessary by checking if all NB FIDs
* match in the coherent fabric. If so, check to see if NbCofVidUpdate
* is zero for all CPUs. If that is also true, no further steps are
* necessary. If not + cold reset, proceed to step 2. If not + warm
* reset, proceed to step 8.
* 2. Determine NewNbVid & NewNbFid.
* 3. Copy Startup Pstate settings to P0/P1 MSRs on all local cores.
* 4. Copy NewNbVid to P0 NbVid on all local cores.
* 5. Transition to P1 on all local cores.
* 6. Transition to P0 on local core 0 only.
* 7. Copy NewNbFid to F3xD4[NbFid], set NbFidEn, and issue a warm reset.
* 8. Update all enabled Pstate MSRs' NbVids according to NbVidUpdateAll
* on all local cores.
* 9. Transition to Startup Pstate on all local cores.
*
* @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
F10PmNbCofVidInit (
IN CPU_SPECIFIC_SERVICES *FamilySpecificServices,
IN AMD_CPU_EARLY_PARAMS *CpuEarlyParamsPtr,
IN AMD_CONFIG_PARAMS *StdHeader
)
{
BOOLEAN PerformNbCofVidCfg;
BOOLEAN SystemNbCofsMatch;
UINT8 NewNbFid;
UINT8 NewNbVid;
UINT32 Socket;
UINT32 Module;
UINT32 Core;
UINT32 SystemNbCof;
UINT32 AndMask;
UINT32 OrMask;
UINT32 Ignored;
UINT32 NewNbVoltage;
WARM_RESET_REQUEST Request;
AP_TASK TaskPtr;
PCI_ADDR PciAddress;
AGESA_STATUS IgnoredSts;
NB_COF_VID_INIT_WARM FunctionData;
PerformNbCofVidCfg = TRUE;
OptionMultiSocketConfiguration.GetSystemNbCof (&SystemNbCof, &SystemNbCofsMatch, StdHeader);
if (SystemNbCofsMatch) {
if (!OptionMultiSocketConfiguration.GetSystemNbCofVidUpdate (StdHeader)) {
PerformNbCofVidCfg = FALSE;
}
}
if (PerformNbCofVidCfg) {
// get the local node ID
IdentifyCore (StdHeader, &Socket, &Module, &Core, &IgnoredSts);
GetPciAddress (StdHeader, Socket, Module, &PciAddress, &IgnoredSts);
ASSERT (Core == 0);
// get NewNbVid
FamilySpecificServices->GetNbFrequency (FamilySpecificServices, &PciAddress, &Ignored, &NewNbVoltage, StdHeader);
ASSERT (((1550000 - NewNbVoltage) % 12500) == 0);
NewNbVid = (UINT8) ((1550000 - NewNbVoltage) / 12500);
ASSERT (NewNbVid < 0x80);
if (!(IsWarmReset (StdHeader))) {
// determine NewNbFid
NewNbFid = (UINT8) ((SystemNbCof / 200) - 4);
TaskPtr.FuncAddress.PfApTaskI = PmNbCofVidInitP0P1Core;
TaskPtr.DataTransfer.DataSizeInDwords = 1;
TaskPtr.DataTransfer.DataPtr = &NewNbVid;
TaskPtr.DataTransfer.DataTransferFlags = 0;
TaskPtr.ExeFlags = 0;
ApUtilRunCodeOnAllLocalCoresAtEarly (&TaskPtr, StdHeader, CpuEarlyParamsPtr);
// Transition core 0 to P0 and wait for change to complete
FamilySpecificServices->TransitionPstate (FamilySpecificServices, (UINT8) 0, (BOOLEAN) TRUE, StdHeader);
PciAddress.Address.Register = CPTC0_REG;
AndMask = 0xFFFFFFFF;
((CLK_PWR_TIMING_CTRL_REGISTER *) &AndMask)->NbFid = 0;
OrMask = 0x00000000;
((CLK_PWR_TIMING_CTRL_REGISTER *) &OrMask)->NbFid = NewNbFid;
((CLK_PWR_TIMING_CTRL_REGISTER *) &OrMask)->NbFidEn = 1;
ModifyCurrentSocketPci (&PciAddress, AndMask, OrMask, StdHeader);
// warm reset request
FamilySpecificServices->GetWarmResetFlag (FamilySpecificServices, StdHeader, &Request);
Request.RequestBit = TRUE;
FamilySpecificServices->SetWarmResetFlag (FamilySpecificServices, StdHeader, &Request);
} else {
// warm reset path
FunctionData.NewNbVid = NewNbVid;
FamilySpecificServices->IsNbCofInitNeeded (FamilySpecificServices, &PciAddress, &FunctionData.NbVidUpdateAll, StdHeader);
TaskPtr.FuncAddress.PfApTaskI = PmNbCofVidInitWarmCore;
TaskPtr.DataTransfer.DataSizeInDwords = SIZE_IN_DWORDS (NB_COF_VID_INIT_WARM);
TaskPtr.DataTransfer.DataPtr = &FunctionData;
TaskPtr.DataTransfer.DataTransferFlags = 0;
TaskPtr.ExeFlags = WAIT_FOR_CORE;
ApUtilRunCodeOnAllLocalCoresAtEarly (&TaskPtr, StdHeader, CpuEarlyParamsPtr);
}
} // skip whole algorithm
}
