blob: 1f23cc59488163611d78d882e9a8bb47f14f1068 [file] [log] [blame]
/* $NoKeywords:$ */
/**
* @file
*
* AMD Family_15 Trinity after warm reset sequence for NB P-states
*
* Performs the "NB COF and VID 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/0x15/TN
* @e \$Revision: 64197 $ @e \$Date: 2012-01-17 16:18:33 -0600 (Tue, 17 Jan 2012) $
*
*/
/*
******************************************************************************
*
* Copyright 2008 - 2012 ADVANCED MICRO DEVICES, INC. All Rights Reserved.
*
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*
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******************************************************************************
*/
/*----------------------------------------------------------------------------------------
* M O D U L E S U S E D
*----------------------------------------------------------------------------------------
*/
#include "AGESA.h"
#include "amdlib.h"
#include "cpuF15PowerMgmt.h"
#include "cpuF15TnPowerMgmt.h"
#include "cpuRegisters.h"
#include "cpuApicUtilities.h"
#include "cpuFamilyTranslation.h"
#include "GeneralServices.h"
#include "cpuServices.h"
#include "heapManager.h"
#include "cpuF15TnNbAfterReset.h"
#include "GnbRegisterAccTN.h"
#include "GnbRegistersTN.h"
#include "Filecode.h"
CODE_GROUP (G3_DXE)
RDATA_GROUP (G3_DXE)
#define FILECODE PROC_CPU_FAMILY_0X15_TN_CPUF15TNNBAFTERRESET_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
*----------------------------------------------------------------------------------------
*/
/*----------------------------------------------------------------------------------------
* 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
F15TnPmNbAfterResetOnCore (
IN AMD_CONFIG_PARAMS *StdHeader
);
VOID
STATIC
TransitionToNbLow (
IN PCI_ADDR PciAddress,
IN AMD_CONFIG_PARAMS *StdHeader
);
VOID
STATIC
TransitionToNbHigh (
IN PCI_ADDR PciAddress,
IN AMD_CONFIG_PARAMS *StdHeader
);
VOID
STATIC
WaitForNbTransitionToComplete (
IN PCI_ADDR PciAddress,
IN UINT32 PstateIndex,
IN AMD_CONFIG_PARAMS *StdHeader
);
/*----------------------------------------------------------------------------------------
* E X P O R T E D F U N C T I O N S
*----------------------------------------------------------------------------------------
*/
/*---------------------------------------------------------------------------------------*/
/**
* Family 15h Trinity core 0 entry point for performing the necessary steps after
* a warm reset has occurred.
*
* The steps are as follows:
*
* 1. Temp1=D18F5x170[SwNbPstateLoDis].
* 2. Temp2=D18F5x170[NbPstateDisOnP0].
* 3. Temp3=D18F5x170[NbPstateThreshold].
* 4. Temp4=D18F5x170[NbPstateGnbSlowDis].
* 5. If MSRC001_0070[NbPstate]=0, go to step 6. If MSRC001_0070[NbPstate]=1, go to step 11.
* 6. Write 1 to D18F5x170[NbPstateGnbSlowDis].
* 7. Write 0 to D18F5x170[SwNbPstateLoDis, NbPstateDisOnP0, NbPstateThreshold].
* 8. Wait for D18F5x174[CurNbPstate] = D18F5x170[NbPstateLo] and D18F5x174[CurNbFid, CurNb-
* Did]=[NbFid, NbDid] from D18F5x1[6C:60] indexed by D18F5x170[NbPstateLo].
* 9. Set D18F5x170[SwNbPstateLoDis]=1.
* 10. Wait for D18F5x174[CurNbPstate] = D18F5x170[NbPstateHi] and D18F5x174[CurNbFid, CurNb-
* Did]=[NbFid, NbDid] from D18F5x1[6C:60] indexed by D18F5x170[NbPstateHi]. Go to step 15.
* 11. Write 1 to D18F5x170[SwNbPstateLoDis].
* 12. Wait for D18F5x174[CurNbPstate] = D18F5x170[NbPstateHi] and D18F5x174[CurNbFid, CurNb-
* Did]=[NbFid, NbDid] from D18F5x1[6C:60] indexed by D18F5x170[NbPstateHi].
* 13. Write 0 to D18F5x170[SwNbPstateLoDis, NbPstateDisOnP0, NbPstateThreshold].
* 14. Wait for D18F5x174[CurNbPstate] = D18F5x170[NbPstateLo] and D18F5x174[CurNbFid, CurNb-
* Did]=[NbFid, NbDid] from D18F5x1[6C:60] indexed by D18F5x170[NbPstateLo].
* 15. Set D18F5x170[SwNbPstateLoDis]=Temp1, D18F5x170[NbPstateDisOnP0]=Temp2, D18F5x170[NbP-
* stateThreshold]=Temp3, and D18F5x170[NbPstateGnbSlowDis]=Temp4.
*
* @param[in] FamilySpecificServices The current Family Specific Services.
* @param[in] CpuEarlyParamsPtr Service parameters
* @param[in] StdHeader Config handle for library and services.
*
*/
VOID
F15TnPmNbAfterReset (
IN CPU_SPECIFIC_SERVICES *FamilySpecificServices,
IN AMD_CPU_EARLY_PARAMS *CpuEarlyParamsPtr,
IN AMD_CONFIG_PARAMS *StdHeader
)
{
UINT32 Socket;
UINT32 Module;
UINT32 Core;
UINT32 TaskedCore;
UINT32 Ignored;
AP_TASK TaskPtr;
PCI_ADDR PciAddress;
AGESA_STATUS IgnoredSts;
LOCATE_HEAP_PTR Locate;
IDS_HDT_CONSOLE (CPU_TRACE, " F15TnPmNbAfterReset\n");
IdentifyCore (StdHeader, &Socket, &Module, &Core, &IgnoredSts);
ASSERT (Core == 0);
if (FamilySpecificServices->IsNbPstateEnabled (FamilySpecificServices, &CpuEarlyParamsPtr->PlatformConfig, StdHeader)) {
PciAddress.AddressValue = NB_PSTATE_CTRL_PCI_ADDR;
Locate.BufferHandle = AMD_CPU_NB_PSTATE_FIXUP_HANDLE;
if (HeapLocateBuffer (&Locate, StdHeader) == AGESA_SUCCESS) {
LibAmdPciWrite (AccessWidth32, PciAddress, Locate.BufferPtr, StdHeader);
} else {
ASSERT (FALSE);
}
}
// Launch one core per node.
TaskPtr.FuncAddress.PfApTask = F15TnPmNbAfterResetOnCore;
TaskPtr.DataTransfer.DataSizeInDwords = 0;
TaskPtr.ExeFlags = WAIT_FOR_CORE;
for (Module = 0; Module < GetPlatformNumberOfModules (); Module++) {
if (GetGivenModuleCoreRange (Socket, Module, &TaskedCore, &Ignored, StdHeader)) {
if (TaskedCore != 0) {
ApUtilRunCodeOnSocketCore ((UINT8) Socket, (UINT8) TaskedCore, &TaskPtr, StdHeader);
}
}
}
ApUtilTaskOnExecutingCore (&TaskPtr, StdHeader, (VOID *) CpuEarlyParamsPtr);
}
/*---------------------------------------------------------------------------------------*/
/**
* Family 15h Trinity core 0 entry point for performing the necessary Nb P-state VID adjustment
* after a cold reset has occurred.
*
* @param[in] FamilySpecificServices The current Family Specific Services.
* @param[in] CpuEarlyParamsPtr Service parameters
* @param[in] StdHeader Config handle for library and services.
*
*/
VOID
F15TnNbPstateVidAdjustAfterReset (
IN CPU_SPECIFIC_SERVICES *FamilySpecificServices,
IN AMD_CPU_EARLY_PARAMS *CpuEarlyParamsPtr,
IN AMD_CONFIG_PARAMS *StdHeader
)
{
PCI_ADDR PciAddress;
BOOLEAN NeitherHiNorLo;
NB_PSTATE_REGISTER NbPsReg;
UINT32 NbPsVid;
UINT32 i;
NB_PSTATE_CTRL_REGISTER NbPsCtrl;
NB_PSTATE_CTRL_REGISTER NbPsCtrlSave;
NB_PSTATE_STS_REGISTER NbPsSts;
CLK_PWR_TIMING_CTRL_5_REGISTER ClkPwrTimgCtrl5;
D0F0xBC_x1F400_STRUCT D0F0xBC_x1F400;
// Check if D18F5x188[NbOffsetTrim] has been programmed to 01b (-25mV)
PciAddress.AddressValue = CPTC5_PCI_ADDR;
LibAmdPciRead (AccessWidth32, PciAddress, &ClkPwrTimgCtrl5, StdHeader);
if (ClkPwrTimgCtrl5.NbOffsetTrim == 1) {
return;
}
// Add 25mV (-4 VID steps) to all VddNb VIDs.
PciAddress.AddressValue = NB_PSTATE_0_PCI_ADDR;
for (i = 0; i < NM_NB_PS_REG; i++) {
PciAddress.Address.Register = NB_PSTATE_0 + (i * 4);
LibAmdPciRead (AccessWidth32, PciAddress, &NbPsReg, StdHeader);
if (NbPsReg.NbPstateEn == 1) {
NbPsVid = GetF15TnNbVid (&NbPsReg);
NbPsVid -= 4;
SetF15TnNbVid (&NbPsReg, &NbPsVid);
LibAmdPciWrite (AccessWidth32, PciAddress, &NbPsReg, StdHeader);
}
}
// Check if D18F5x174[CurNbPstate] equals NbPstateHi or NbPstateLo
PciAddress.Address.Register = NB_PSTATE_STATUS;
LibAmdPciRead (AccessWidth32, PciAddress, &NbPsSts, StdHeader);
PciAddress.Address.Register = NB_PSTATE_CTRL;
LibAmdPciRead (AccessWidth32, PciAddress, &NbPsCtrl, StdHeader);
// Save NB P-state control setting
NbPsCtrlSave = NbPsCtrl;
// Force a NB P-state Transition.
NeitherHiNorLo = FALSE;
if (NbPsSts.CurNbPstate == NbPsCtrl.NbPstateHi) {
TransitionToNbLow (PciAddress, StdHeader);
} else if (NbPsSts.CurNbPstate == NbPsCtrl.NbPstateLo) {
TransitionToNbHigh (PciAddress, StdHeader);
} else {
NeitherHiNorLo = TRUE;
}
// Set OffsetTrim to -25mV:
// D18F5x188[NbOffsetTrim]=01b (-25mV)
// D0F0xBC_x1F400[SviLoadLineOffsetVddNB]=01b (-25mV)
PciAddress.Address.Register = CPTC5_REG;
LibAmdPciRead (AccessWidth32, PciAddress, &ClkPwrTimgCtrl5, StdHeader);
ClkPwrTimgCtrl5.NbOffsetTrim = 1;
LibAmdPciWrite (AccessWidth32, PciAddress, &ClkPwrTimgCtrl5, StdHeader);
GnbRegisterReadTN (D0F0xBC_x1F400_TYPE, D0F0xBC_x1F400_ADDRESS, &D0F0xBC_x1F400, 0, StdHeader);
D0F0xBC_x1F400.Field.SviLoadLineOffsetVddNB = 1;
GnbRegisterWriteTN (D0F0xBC_x1F400_TYPE, D0F0xBC_x1F400_ADDRESS, &D0F0xBC_x1F400, 0, StdHeader);
// Unforce NB P-state back to CurNbPstate value upon entry.
if (NeitherHiNorLo || (NbPsSts.CurNbPstate == NbPsCtrl.NbPstateHi)) {
TransitionToNbHigh (PciAddress, StdHeader);
} else {
// if (NbPsSts.CurNbPstate == NbPsCtrl.NbPstateLo)
TransitionToNbLow (PciAddress, StdHeader);
}
// Restore NB P-state control setting
PciAddress.Address.Register = NB_PSTATE_CTRL;
NbPsCtrl = NbPsCtrlSave;
LibAmdPciWrite (AccessWidth32, PciAddress, &NbPsCtrl, StdHeader);
}
/*---------------------------------------------------------------------------------------
* L O C A L F U N C T I O N S
*---------------------------------------------------------------------------------------
*/
/*---------------------------------------------------------------------------------------*/
/**
* Support routine for F15TnPmNbAfterReset to perform MSR initialization on one
* core of each die in a family 15h socket.
*
* This function implements steps 1 - 15 on each core.
*
* @param[in] StdHeader Config handle for library and services.
*
*/
VOID
STATIC
F15TnPmNbAfterResetOnCore (
IN AMD_CONFIG_PARAMS *StdHeader
)
{
UINT32 NbPsCtrlOnEntry;
UINT32 NbPsCtrlOnExit;
UINT64 LocalMsrRegister;
PCI_ADDR PciAddress;
IDS_HDT_CONSOLE (CPU_TRACE, " F15TnPmNbAfterResetOnCore\n");
// 1. Temp1 = D18F5x170[SwNbPstateLoDis].
// 2. Temp2 = D18F5x170[NbPstateDisOnP0].
// 3. Temp3 = D18F5x170[NbPstateThreshold].
// 4. Temp4 = D18F5x170[NbPstateGnbSlowDis].
PciAddress.AddressValue = NB_PSTATE_CTRL_PCI_ADDR;
LibAmdPciRead (AccessWidth32, PciAddress, &NbPsCtrlOnEntry, StdHeader);
// Check if NB P-states were disabled, and if so, prevent any changes from occurring.
if (((NB_PSTATE_CTRL_REGISTER *) &NbPsCtrlOnEntry)->SwNbPstateLoDis == 0) {
// 5. If MSRC001_0070[NbPstate] = 1, go to step 11
LibAmdMsrRead (MSR_COFVID_CTL, &LocalMsrRegister, StdHeader);
if (((COFVID_CTRL_MSR *) &LocalMsrRegister)->NbPstate == 0) {
// 6. Write 1 to D18F5x170[NbPstateGnbSlowDis].
PciAddress.AddressValue = NB_PSTATE_CTRL_PCI_ADDR;
LibAmdPciRead (AccessWidth32, PciAddress, &NbPsCtrlOnExit, StdHeader);
((NB_PSTATE_CTRL_REGISTER *) &NbPsCtrlOnExit)->NbPstateGnbSlowDis = 1;
LibAmdPciWrite (AccessWidth32, PciAddress, &NbPsCtrlOnExit, StdHeader);
// 7. Write 0 to D18F5x170[SwNbPstateLoDis, NbPstateDisOnP0, NbPstateThreshold].
// 8. Wait for D18F5x174[CurNbPstate] = D18F5x170[NbPstateLo] and D18F5x174[CurNbFid,
// CurNbDid] = [NbFid, NbDid] from D18F5x1[6C:60] indexed by D18F5x170[NbPstateLo].
TransitionToNbLow (PciAddress, StdHeader);
// 9. Set D18F5x170[SwNbPstateLoDis] = 1.
// 10. Wait for D18F5x174[CurNbPstate] = D18F5x170[NbPstateHi] and D18F5x174[CurNbFid,
// CurNbDid] = [NbFid, NbDid] from D18F5x1[6C:60] indexed by D18F5x170[NbPstateHi].
// Go to step 15.
TransitionToNbHigh (PciAddress, StdHeader);
} else {
// 11. Set D18F5x170[SwNbPstateLoDis] = 1.
// 12. Wait for D18F5x174[CurNbPstate] = D18F5x170[NbPstateHi] and D18F5x174[CurNbFid,
// CurNbDid] = [NbFid, NbDid] from D18F5x1[6C:60] indexed by D18F5x170[NbPstateHi].
TransitionToNbHigh (PciAddress, StdHeader);
// 13. Write 0 to D18F5x170[SwNbPstateLoDis, NbPstateDisOnP0, NbPstateThreshold].
// 14. Wait for D18F5x174[CurNbPstate] = D18F5x170[NbPstateLo] and D18F5x174[CurNbFid,
// CurNbDid] = [NbFid, NbDid] from D18F5x1[6C:60] indexed by D18F5x170[NbPstateLo].
TransitionToNbLow (PciAddress, StdHeader);
}
// 15. Set D18F5x170[SwNbPstateLoDis]=Temp1, D18F5x170[NbPstateDisOnP0]=Temp2, D18F5x170[NbP-
// stateThreshold]=Temp3, and D18F5x170[NbPstateGnbSlowDis]=Temp4.
LibAmdPciRead (AccessWidth32, PciAddress, &NbPsCtrlOnExit, StdHeader);
((NB_PSTATE_CTRL_REGISTER *) &NbPsCtrlOnExit)->SwNbPstateLoDis = ((NB_PSTATE_CTRL_REGISTER *) &NbPsCtrlOnEntry)->SwNbPstateLoDis;
((NB_PSTATE_CTRL_REGISTER *) &NbPsCtrlOnExit)->NbPstateDisOnP0 = ((NB_PSTATE_CTRL_REGISTER *) &NbPsCtrlOnEntry)->NbPstateDisOnP0;
((NB_PSTATE_CTRL_REGISTER *) &NbPsCtrlOnExit)->NbPstateThreshold = ((NB_PSTATE_CTRL_REGISTER *) &NbPsCtrlOnEntry)->NbPstateThreshold;
((NB_PSTATE_CTRL_REGISTER *) &NbPsCtrlOnExit)->NbPstateGnbSlowDis = ((NB_PSTATE_CTRL_REGISTER *) &NbPsCtrlOnEntry)->NbPstateGnbSlowDis;
LibAmdPciWrite (AccessWidth32, PciAddress, &NbPsCtrlOnExit, StdHeader);
}
}
/*---------------------------------------------------------------------------------------*/
/**
* Support routine for F15TnPmNbAfterResetOnCore to transition to the low NB P-state.
*
* This function implements steps 7, 8, 13, and 14 as needed.
*
* @param[in] PciAddress Segment, bus, device number of the node to transition.
* @param[in] StdHeader Config handle for library and services.
*
*/
VOID
STATIC
TransitionToNbLow (
IN PCI_ADDR PciAddress,
IN AMD_CONFIG_PARAMS *StdHeader
)
{
NB_PSTATE_CTRL_REGISTER NbPsCtrl;
IDS_HDT_CONSOLE (CPU_TRACE, " TransitionToNbLow\n");
// 7/13. Write 0 to D18F5x170[SwNbPstateLoDis, NbPstateDisOnP0, NbPstateThreshold].
PciAddress.AddressValue = NB_PSTATE_CTRL_PCI_ADDR;
LibAmdPciRead (AccessWidth32, PciAddress, &NbPsCtrl, StdHeader);
NbPsCtrl.SwNbPstateLoDis = 0;
NbPsCtrl.NbPstateDisOnP0 = 0;
NbPsCtrl.NbPstateThreshold = 0;
LibAmdPciWrite (AccessWidth32, PciAddress, &NbPsCtrl, StdHeader);
// 8/14. Wait for D18F5x174[CurNbPstate] = D18F5x170[NbPstateLo] and D18F5x174[CurNbFid,
// CurNbDid] = [NbFid, NbDid] from D18F5x1[6C:60] indexed by D18F5x170[NbPstateLo].
WaitForNbTransitionToComplete (PciAddress, NbPsCtrl.NbPstateLo, StdHeader);
}
/*---------------------------------------------------------------------------------------*/
/**
* Support routine for F15TnPmNbAfterResetOnCore to transition to the high NB P-state.
*
* This function implements steps 9, 10, 11, and 12 as needed.
*
* @param[in] PciAddress Segment, bus, device number of the node to transition.
* @param[in] StdHeader Config handle for library and services.
*
*/
VOID
STATIC
TransitionToNbHigh (
IN PCI_ADDR PciAddress,
IN AMD_CONFIG_PARAMS *StdHeader
)
{
NB_PSTATE_CTRL_REGISTER NbPsCtrl;
IDS_HDT_CONSOLE (CPU_TRACE, " TransitionToNbHigh\n");
// 9/10. Set D18F5x170[SwNbPstateLoDis] = 1.
PciAddress.AddressValue = NB_PSTATE_CTRL_PCI_ADDR;
LibAmdPciRead (AccessWidth32, PciAddress, &NbPsCtrl, StdHeader);
NbPsCtrl.SwNbPstateLoDis = 1;
LibAmdPciWrite (AccessWidth32, PciAddress, &NbPsCtrl, StdHeader);
// 11/12. Wait for D18F5x174[CurNbPstate] = D18F5x170[NbPstateHi] and D18F5x174[CurNbFid,
// CurNbDid] = [NbFid, NbDid] from D18F5x1[6C:60] indexed by D18F5x170[NbPstateHi].
WaitForNbTransitionToComplete (PciAddress, NbPsCtrl.NbPstateHi, StdHeader);
}
/*---------------------------------------------------------------------------------------*/
/**
* Support routine for F15TnPmAfterResetCore to wait for NB FID and DID to
* match a specific P-state.
*
* This function implements steps 8, 10, 12, and 14 as needed.
*
* @param[in] PciAddress Segment, bus, device number of the node to transition.
* @param[in] PstateIndex P-state settings to match.
* @param[in] StdHeader Config handle for library and services.
*
*/
VOID
STATIC
WaitForNbTransitionToComplete (
IN PCI_ADDR PciAddress,
IN UINT32 PstateIndex,
IN AMD_CONFIG_PARAMS *StdHeader
)
{
NB_PSTATE_REGISTER TargetNbPs;
NB_PSTATE_STS_REGISTER NbPsSts;
IDS_HDT_CONSOLE (CPU_TRACE, " WaitForNbTransitionToComplete\n");
PciAddress.Address.Function = FUNC_5;
PciAddress.Address.Register = NB_PSTATE_0 + (PstateIndex << 2);
LibAmdPciRead (AccessWidth32, PciAddress, &TargetNbPs, StdHeader);
PciAddress.Address.Register = NB_PSTATE_STATUS;
do {
LibAmdPciRead (AccessWidth32, PciAddress, &NbPsSts, StdHeader);
} while ((NbPsSts.CurNbPstate != PstateIndex ||
(NbPsSts.CurNbFid != TargetNbPs.NbFid)) ||
(NbPsSts.CurNbDid != TargetNbPs.NbDid));
}