private void timer1_Tick(object sender, EventArgs e)
{
if (monitorPstates)
{
int currentNbPState = K10Manager.GetNbPState();
nbBar.Value = (2 - currentNbPState) * 50;
nbPstateLabel.Text = currentNbPState.ToString() + " - " + freq[currentNbPState + 3].ToString() + "MHz";
// get the current P-state of the first core
for (int i = 0; i < numCores; i++)
{
currentPStateCore[i] = K10Manager.GetCurrentPState(i);
if (i == 0)
{
cpu1Bar.Value = (processBarSteps - currentPStateCore[i]) * (processBarPerc);
pstateLabel1.Text = currentPStateCore[i].ToString() + " - " + freq[currentPStateCore[i]].ToString() + "MHz";
}
else if (i == 1)
{
cpu2Bar.Value = (processBarSteps - currentPStateCore[i]) * (processBarPerc);
pstateLabel2.Text = currentPStateCore[i].ToString() + " - " + freq[currentPStateCore[i]].ToString() + "MHz";
}
else if (i == 2)
{
cpu3Bar.Value = (processBarSteps - currentPStateCore[i]) * (processBarPerc);
pstateLabel3.Text = currentPStateCore[i].ToString() + " - " + freq[currentPStateCore[i]].ToString() + "MHz";
}
else if (i == 3)
{
cpu4Bar.Value = (processBarSteps - currentPStateCore[i]) * (processBarPerc);
pstateLabel4.Text = currentPStateCore[i].ToString() + " - " + freq[currentPStateCore[i]].ToString() + "MHz";
}
}
}
}
/// <summary>
/// Saves the P-state to the cores' MSRs.
/// </summary>
/// <param name="index">Index of the hardware P-state (0-4) to be modified.</param>
public void Save(int index)
{
if (index < 0 || index > 4)
{
throw new ArgumentOutOfRangeException("index");
}
if (index < 3) //dealing with CPU P-States
{
uint msrIndex = 0xC0010064u + (uint)index;
//int boostedStates = K10Manager.GetNumBoostedStates();
int boostedStates = 0;
int indexSw = Math.Max(0, index - boostedStates);
int tempPStateHw = (index <= boostedStates ? _maxPstate : 0);
int tempPStateSw = Math.Max(0, tempPStateHw - boostedStates);
// switch temporarily to the highest thread priority
// (we try not to interfere with any kind of C&Q)
var previousPriority = Thread.CurrentThread.Priority;
Thread.CurrentThread.Priority = ThreadPriority.Highest;
bool[] applyImmediately = new bool[_numCores];
for (int i = 0; i < _numCores; i++)
{
applyImmediately[i] = (K10Manager.GetCurrentPState(i) == index);
// if the settings are to be applied immediately, switch temporarily to another P-state
if (applyImmediately[i])
{
K10Manager.SwitchToPState(tempPStateSw, i);
}
}
Thread.Sleep(3); // let transitions complete
for (int i = 0; i < _numCores; i++)
{
// save the new settings
ulong msr = Program.Ols.ReadMsr(msrIndex, i);
const ulong mask = 0xFE00FFFFu;
msr = (msr & ~mask) | (_msrs[i].Encode(index) & mask);
Program.Ols.WriteMsr(msrIndex, msr, i);
// apply the new settings by switching back
if (applyImmediately[i])
{
K10Manager.SwitchToPState(indexSw, i);
}
}
Thread.Sleep(3); // let transitions complete
Thread.CurrentThread.Priority = previousPriority;
}
else if (index == 3 || index == 4) //dealing with NB P-State 0
{
// switch temporarily to the highest thread priority
// (we try not to interfere with any kind of C&Q)
var previousPriority = Thread.CurrentThread.Priority;
Thread.CurrentThread.Priority = ThreadPriority.Highest;
//check, if current NB P-State is the one, which is going to be modified
index = index - 3;
int curNbstate = K10Manager.GetNbPState();
string message = "Start: " + curNbstate;
int changedNbstate = curNbstate;
bool applyImmediately = (curNbstate != index);
K10Manager.EnableNBPstateSwitching();
applyImmediately = (curNbstate != index);
// if the settings are to be applied immediately, switch temporarily to another P-state
if (applyImmediately)
{
K10Manager.SwitchToNbPState(index);
for (int i = 0; i < 10; i++)
{
Thread.Sleep(100); // let transitions complete
changedNbstate = K10Manager.GetNbPState();
if (changedNbstate == index)
{
message += " Time_init_switch: " + i;
i = 1000;
}
}
}
curNbstate = K10Manager.GetNbPState();
if (index == 0) // NB P-state0
{
//DRAM needs to be set into SelfRefresh
//K10Manager.DisDllShutDown();
//K10Manager.EnterDramSelfRefresh(); //NB Pstate HW switching needs to be disabled before NbPsCtrDis
// save the new settings
uint config = Program.Ols.ReadPciConfig(0xC3, 0xDC);
//const uint mask = 0x07F7F000; //enable overwrite of Vid and Div
const uint mask = 0x0007F000; //enable overwrite of Vid only
config = (config & ~mask) | (_msrs[0].Encode(index + 3) & mask);
uint voltage = Program.Ols.ReadPciConfig(0xC3, 0x15C);
//const uint maskvolt = 0x00007F00;
const uint maskvolt = 0x7F7F7F00; //overwriting VIDSelect2 and 3 in addition
uint check = _msrs[0].Encode(index + 3) >> 12 & 0x7F;
voltage = (voltage & ~maskvolt) | ((check << 24) | (check << 16) | (check << 8) & maskvolt);
Program.Ols.WritePciConfig(0xC3, 0xDC, config);
Program.Ols.WritePciConfig(0xC3, 0x15C, voltage);
}
else if (index == 1)
{
// save the new settings
//K10Manager.DisDllShutDown();
//K10Manager.EnterDramSelfRefresh(); //NB Pstate HW switching needs to be disabled before NbPsCtrDis
uint config = Program.Ols.ReadPciConfig(0xC6, 0x90);
//const uint mask = 0x00007F7F; //enable DID and VID modification
const uint mask = 0x00007F00; //enable VID modification only
config = (config & ~mask) | (_msrs[0].Encode(index + 3) & mask);
uint voltage = Program.Ols.ReadPciConfig(0xC3, 0x15C);
const uint maskvolt = 0x0000007F;
uint check = _msrs[0].Encode(index + 3) >> 8;
voltage = (voltage & ~maskvolt) | (check & maskvolt);
Program.Ols.WritePciConfig(0xC6, 0x90, config);
Program.Ols.WritePciConfig(0xC3, 0x15C, voltage);
}
if (curNbstate == 0)
{
K10Manager.SwitchToNbPState(1);
for (int i = 0; i < 10; i++)
{
Thread.Sleep(100); // let transitions complete
changedNbstate = K10Manager.GetNbPState();
if (changedNbstate == 1)
{
message += " Time_P0_P1: " + i;
i = 1000;
}
}
K10Manager.SwitchToNbPState(0);
for (int i = 0; i < 10; i++)
{
Thread.Sleep(100); // let transitions complete
changedNbstate = K10Manager.GetNbPState();
if (changedNbstate == 0)
{
message += " Time_P1_P0: " + i;
i = 1000;
}
}
}
else if (curNbstate == 1)
{
K10Manager.SwitchToNbPState(0);
for (int i = 0; i < 10; i++)
{
Thread.Sleep(100); // let transitions complete
changedNbstate = K10Manager.GetNbPState();
if (changedNbstate == 0)
{
message += " Time_P1_P0: " + i;
i = 1000;
}
}
K10Manager.SwitchToNbPState(1);
for (int i = 0; i < 10; i++)
{
Thread.Sleep(100); // let transitions complete
changedNbstate = K10Manager.GetNbPState();
if (changedNbstate == 1)
{
message += " Time_P0_P1: " + i;
i = 1000;
}
}
}
//K10Manager.ExitDramSelfRefresh();
//K10Manager.EnDllShutDown();
K10Manager.DisableNBPstateSwitching();
//MessageBox.Show(message);
Thread.CurrentThread.Priority = previousPriority;
}
}