public override void TickSpecificLoad(CpuidProcessorInfo info)
{
var tscSupport = info.IsTimeStampCounterSupported && info.TimeStampCounterFrequency > 0;
double newBusClock = 0;
foreach (var coreFrequencySensor in _coreFrequenciesSensors)
{
coreFrequencySensor.SetActive(tscSupport);
if (!tscSupport)
{
continue;
}
uint eax = 0, edx = 0;
if (Msr.ReadTx(IntelCpu.Ia32PerfStatus, ref eax, ref edx,
(UIntPtr)(1UL << (int)Cpu.GetCpuidProcessorInfo()[0, 0].ThreadIndex)))
{
newBusClock = Cpu.GetCpuidProcessorInfo().TimeStampCounterFrequency / Cpu.TimeStampCounterMultiper;
switch (Cpu.Microarchitecture)
{
case MicroArchitecture.Nehalem: {
var multiplier = eax & 0xff;
coreFrequencySensor.Update((float)(multiplier * newBusClock));
} break;
case MicroArchitecture.SandyBridge:
case MicroArchitecture.IvyBridge:
case MicroArchitecture.Haswell:
case MicroArchitecture.Broadwell:
case MicroArchitecture.Silvermont:
case MicroArchitecture.Skylake: {
var multiplier = (eax >> 8) & 0xff;
coreFrequencySensor.Update((float)(multiplier * newBusClock));
} break;
default: {
var multiplier = ((eax >> 8) & 0x1f) + 0.5 * ((eax >> 14) & 1);
coreFrequencySensor.Update((float)(multiplier * newBusClock));
} break;
}
}
else
{
// If IA32_PERF_STATUS is not available, assume TSC frequency
coreFrequencySensor.Update((float)Cpu.GetCpuidProcessorInfo().TimeStampCounterFrequency);
}
}
if (newBusClock > 0)
{
_baseClock.Update((float)newBusClock);
}
_baseClock.SetActive(newBusClock > 0);
IsSensorActive = newBusClock > 0;
}
private float[] GetTjMaxFromMsr()
{
uint eax = 0, edx = 0;
var result = new float[ThreadsCount];
for (uint i = 0; i < ThreadsCount; i++)
{
if (Msr.ReadTx(Ia32TemperatureTarget, ref eax, ref edx, (UIntPtr)(1UL << (int)i)))
{
result[i] = (eax >> 16) & 0xFF;
}
else
{
result[i] = 100;
}
}
return(result);
}
public override void Update(IntelCpu cpu)
{
uint eax = 0, edx = 0;
if (Msr.ReadTx(Ia32PackageThermStatus, ref eax, ref edx, (UIntPtr)(1UL << 0)) && (eax & 0x80000000) != 0)
{
// From tjMax from at bits 22 -> 16
float deltaT = ((eax & 0x007F0000) >> 16);
var tjMax = cpu.GetTjMaxOfThreadAt(0);
const float tSlope = 1;
Value = tjMax - tSlope * deltaT;
SetActive(true);
}
else
{
Value = -1;
SetActive(false);
}
AfterUpdate();
}
public override void Update(IntelCpu cpu)
{
uint eax = 0, edx = 0;
if (Msr.ReadTx(Ia32ThermStatusMsr, ref eax, ref edx, _threadMask) && (eax & 0x80000000) != 0)
{
// From tjMax from at bits 22 -> 16
float deltaT = (eax & 0x007F0000) >> 16;
var tjMax = cpu.GetTjMaxOfThreadAt(_threadIndex);
const float tSlope = 1;
Value = tjMax - tSlope * deltaT;
SetActive(true);
}
else
{
Value = -1;
SetActive(false);
}
AfterUpdate();
}
