/**
* Support routine for F15OrPmNbAfterResetOnCore to transition to the high NB P-state.
*
* This function implements steps 7, 8, 9, and 10 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
)
{
UINT32 NbPsCtrl;
// 7/9. Set D18F5x170[SwNbPstateLoDis] = 1.
PciAddress.Address.Function = FUNC_5;
PciAddress.Address.Register = NB_PSTATE_CTRL;
LibAmdPciRead (AccessWidth32, PciAddress, &NbPsCtrl, StdHeader);
((NB_PSTATE_CTRL_REGISTER *) &NbPsCtrl)->SwNbPstateLoDis = 1;
LibAmdPciWrite (AccessWidth32, PciAddress, &NbPsCtrl, StdHeader);
// 8/10. Wait for D18F5x174[CurNbPstate] = D18F5x170[NbPstateHi] and D18F5x174[CurNbFid,
// CurNbDid] = [NbFid, NbDid] from D18F5x1[6C:60] indexed by D18F5x170[NbPstateHi].
WaitForNbTransitionToComplete (PciAddress, ((NB_PSTATE_CTRL_REGISTER *) &NbPsCtrl)->NbPstateHi, StdHeader);
}
/**
* Support routine for F15KvPmNbAfterResetOnCore 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 F15OrPmNbAfterResetOnCore to transition to the low NB P-state.
*
* This function implements steps 5, 6, 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
TransitionToNbLow (
IN PCI_ADDR PciAddress,
IN AMD_CONFIG_PARAMS *StdHeader
)
{
UINT32 NbPsCtrl;
// 5/11. Write 0 to D18F5x170[SwNbPstateLoDis, NbPstateDisOnP0, NbPstateThreshold].
PciAddress.Address.Function = FUNC_5;
PciAddress.Address.Register = NB_PSTATE_CTRL;
LibAmdPciRead (AccessWidth32, PciAddress, &NbPsCtrl, StdHeader);
((NB_PSTATE_CTRL_REGISTER *) &NbPsCtrl)->SwNbPstateLoDis = 0;
((NB_PSTATE_CTRL_REGISTER *) &NbPsCtrl)->NbPstateDisOnP0 = 0;
((NB_PSTATE_CTRL_REGISTER *) &NbPsCtrl)->NbPstateThreshold = 0;
LibAmdPciWrite (AccessWidth32, PciAddress, &NbPsCtrl, StdHeader);
// 6/12. Wait for D18F5x174[CurNbPstate] = D18F5x170[NbPstateLo] and D18F5x174[CurNbFid,
// CurNbDid] = [NbFid, NbDid] from D18F5x1[6C:60] indexed by D18F5x170[NbPstateLo].
WaitForNbTransitionToComplete (PciAddress, ((NB_PSTATE_CTRL_REGISTER *) &NbPsCtrl)->NbPstateLo, StdHeader);
}
/**
* Support routine for F15KvPmNbAfterResetOnCore 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);
}
