moel@1: /* moel@1: moel@1: Version: MPL 1.1/GPL 2.0/LGPL 2.1 moel@1: moel@1: The contents of this file are subject to the Mozilla Public License Version moel@1: 1.1 (the "License"); you may not use this file except in compliance with moel@1: the License. You may obtain a copy of the License at moel@1: moel@1: http://www.mozilla.org/MPL/ moel@1: moel@1: Software distributed under the License is distributed on an "AS IS" basis, moel@1: WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License moel@1: for the specific language governing rights and limitations under the License. moel@1: moel@1: The Original Code is the Open Hardware Monitor code. moel@1: moel@1: The Initial Developer of the Original Code is moel@1: Michael Möller . moel@1: Portions created by the Initial Developer are Copyright (C) 2009-2010 moel@1: the Initial Developer. All Rights Reserved. moel@1: moel@1: Contributor(s): moel@1: moel@1: Alternatively, the contents of this file may be used under the terms of moel@1: either the GNU General Public License Version 2 or later (the "GPL"), or moel@1: the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), moel@1: in which case the provisions of the GPL or the LGPL are applicable instead moel@1: of those above. If you wish to allow use of your version of this file only moel@1: under the terms of either the GPL or the LGPL, and not to allow others to moel@1: use your version of this file under the terms of the MPL, indicate your moel@1: decision by deleting the provisions above and replace them with the notice moel@1: and other provisions required by the GPL or the LGPL. If you do not delete moel@1: the provisions above, a recipient may use your version of this file under moel@1: the terms of any one of the MPL, the GPL or the LGPL. moel@1: moel@1: */ moel@1: moel@1: using System; moel@1: using System.Collections.Generic; moel@1: using System.Drawing; moel@24: using System.Diagnostics; moel@79: using System.Globalization; moel@1: using System.Reflection; moel@63: using System.Runtime.InteropServices; moel@63: using System.Threading; moel@1: using System.Text; moel@1: moel@1: namespace OpenHardwareMonitor.Hardware.CPU { moel@31: public class IntelCPU : Hardware, IHardware { moel@1: moel@100: private int processorIndex; moel@90: private CPUID[][] cpuid; moel@90: private int coreCount; moel@90: moel@1: private string name; moel@1: private Image icon; moel@1: moel@46: private uint family; moel@46: private uint model; moel@46: private uint stepping; moel@46: moel@1: private Sensor[] coreTemperatures; moel@63: moel@24: private Sensor totalLoad; moel@24: private Sensor[] coreLoads; moel@44: private Sensor[] coreClocks; moel@90: private Sensor busClock; moel@79: private bool hasTSC; moel@79: private bool invariantTSC; moel@79: private double estimatedMaxClock; moel@79: moel@26: private CPULoad cpuLoad; moel@44: moel@79: private ulong lastTimeStampCount; moel@44: private long lastTime; moel@79: private uint maxNehalemMultiplier = 0; moel@26: moel@1: private const uint IA32_THERM_STATUS_MSR = 0x019C; moel@4: private const uint IA32_TEMPERATURE_TARGET = 0x01A2; moel@44: private const uint IA32_PERF_STATUS = 0x0198; moel@46: private const uint MSR_PLATFORM_INFO = 0xCE; moel@1: moel@49: private string CoreString(int i) { moel@49: if (coreCount == 1) moel@49: return "CPU Core"; moel@49: else moel@49: return "CPU Core #" + (i + 1); moel@49: } moel@49: moel@69: private float[] Floats(float f) { moel@69: float[] result = new float[coreCount]; moel@69: for (int i = 0; i < coreCount; i++) moel@69: result[i] = f; moel@69: return result; moel@69: } moel@69: moel@100: public IntelCPU(int processorIndex, CPUID[][] cpuid) { moel@90: moel@100: this.processorIndex = processorIndex; moel@90: this.cpuid = cpuid; moel@90: this.coreCount = cpuid.Length; moel@90: this.name = cpuid[0][0].Name; moel@1: this.icon = Utilities.EmbeddedResources.GetImage("cpu.png"); moel@46: moel@90: this.family = cpuid[0][0].Family; moel@90: this.model = cpuid[0][0].Model; moel@90: this.stepping = cpuid[0][0].Stepping; moel@63: moel@69: float[] tjMax; moel@49: switch (family) { moel@49: case 0x06: { moel@49: switch (model) { moel@49: case 0x0F: // Intel Core (65nm) moel@49: switch (stepping) { moel@49: case 0x06: // B2 moel@49: switch (coreCount) { moel@49: case 2: moel@69: tjMax = Floats(80 + 10); break; moel@49: case 4: moel@69: tjMax = Floats(90 + 10); break; moel@49: default: moel@69: tjMax = Floats(85 + 10); break; moel@49: } moel@69: tjMax = Floats(80 + 10); break; moel@49: case 0x0B: // G0 moel@69: tjMax = Floats(90 + 10); break; moel@49: case 0x0D: // M0 moel@69: tjMax = Floats(85 + 10); break; moel@49: default: moel@69: tjMax = Floats(85 + 10); break; moel@49: } break; moel@49: case 0x17: // Intel Core (45nm) moel@69: tjMax = Floats(100); break; moel@114: case 0x1C: // Intel Atom (45nm) moel@114: switch (stepping) { moel@114: case 0x02: // C0 moel@114: tjMax = Floats(90); break; moel@114: case 0x0A: // A0, B0 moel@114: tjMax = Floats(100); break; moel@114: default: moel@114: tjMax = Floats(90); break; moel@114: } break; moel@49: case 0x1A: // Intel Core i7 LGA1366 (45nm) moel@49: case 0x1E: // Intel Core i5, i7 LGA1156 (45nm) moel@49: case 0x25: // Intel Core i3, i5, i7 LGA1156 (32nm) moel@91: case 0x2C: // Intel Core i7 LGA1366 (32nm) 6 Core moel@49: uint eax, edx; moel@69: tjMax = new float[coreCount]; moel@69: for (int i = 0; i < coreCount; i++) { moel@69: if (WinRing0.RdmsrTx(IA32_TEMPERATURE_TARGET, out eax, moel@90: out edx, (UIntPtr)(1L << cpuid[i][0].Thread))) moel@69: { moel@69: tjMax[i] = (eax >> 16) & 0xFF; moel@69: } else { moel@69: tjMax[i] = 100; moel@69: } moel@49: } moel@49: if (WinRing0.Rdmsr(MSR_PLATFORM_INFO, out eax, out edx)) { moel@49: maxNehalemMultiplier = (eax >> 8) & 0xff; moel@49: } moel@49: break; moel@49: default: moel@69: tjMax = Floats(100); break; moel@49: } moel@49: } break; moel@69: default: tjMax = Floats(100); break; moel@49: } moel@1: moel@44: // check if processor supports a digital thermal sensor moel@90: if (cpuid[0][0].Data.GetLength(0) > 6 && moel@90: (cpuid[0][0].Data[6, 0] & 1) != 0) moel@90: { moel@44: coreTemperatures = new Sensor[coreCount]; moel@44: for (int i = 0; i < coreTemperatures.Length; i++) { moel@134: coreTemperatures[i] = new Sensor(CoreString(i), i, moel@63: SensorType.Temperature, this, new ParameterDescription[] { moel@63: new ParameterDescription( moel@122: "TjMax [°C]", "TjMax temperature of the core.\n" + moel@69: "Temperature = TjMax - TSlope * Value.", tjMax[i]), moel@122: new ParameterDescription("TSlope [°C]", moel@122: "Temperature slope of the digital thermal sensor.\n" + moel@63: "Temperature = TjMax - TSlope * Value.", 1)}); moel@155: ActivateSensor(coreTemperatures[i]); moel@44: } moel@44: } else { moel@44: coreTemperatures = new Sensor[0]; moel@1: } moel@49: moel@49: if (coreCount > 1) moel@49: totalLoad = new Sensor("CPU Total", 0, SensorType.Load, this); moel@49: else moel@49: totalLoad = null; moel@24: coreLoads = new Sensor[coreCount]; moel@49: for (int i = 0; i < coreLoads.Length; i++) moel@49: coreLoads[i] = new Sensor(CoreString(i), i + 1, moel@44: SensorType.Load, this); moel@90: cpuLoad = new CPULoad(cpuid); moel@26: if (cpuLoad.IsAvailable) { moel@26: foreach (Sensor sensor in coreLoads) moel@26: ActivateSensor(sensor); moel@49: if (totalLoad != null) moel@49: ActivateSensor(totalLoad); moel@26: } moel@26: moel@79: // check if processor has TSC moel@90: if (cpuid[0][0].Data.GetLength(0) > 1 moel@90: && (cpuid[0][0].Data[1, 3] & 0x10) != 0) moel@79: hasTSC = true; moel@79: else moel@79: hasTSC = false; moel@79: moel@79: // check if processor supports invariant TSC moel@90: if (cpuid[0][0].ExtData.GetLength(0) > 7 moel@90: && (cpuid[0][0].ExtData[7, 3] & 0x100) != 0) moel@79: invariantTSC = true; moel@79: else moel@79: invariantTSC = false; moel@79: moel@79: // preload the function moel@79: EstimateMaxClock(0); moel@79: EstimateMaxClock(0); moel@79: moel@79: // estimate the max clock in MHz moel@97: List estimatedMaxClocks = new List(3); moel@97: for (int i = 0; i < 3; i++) moel@97: estimatedMaxClocks.Add(1e-6 * EstimateMaxClock(0.025)); moel@97: estimatedMaxClocks.Sort(); moel@97: estimatedMaxClock = estimatedMaxClocks[1]; moel@79: moel@79: lastTimeStampCount = 0; moel@44: lastTime = 0; moel@44: busClock = new Sensor("Bus Speed", 0, SensorType.Clock, this); moel@44: coreClocks = new Sensor[coreCount]; moel@44: for (int i = 0; i < coreClocks.Length; i++) { moel@49: coreClocks[i] = moel@49: new Sensor(CoreString(i), i + 1, SensorType.Clock, this); moel@79: if (hasTSC) moel@79: ActivateSensor(coreClocks[i]); moel@44: } moel@44: moel@1: Update(); moel@1: } moel@1: moel@110: public override string Name { moel@1: get { return name; } moel@1: } moel@1: moel@110: public override Identifier Identifier { moel@109: get { return new Identifier("intelcpu", processorIndex.ToString()); } moel@1: } moel@1: moel@110: public override Image Icon { moel@1: get { return icon; } moel@1: } moel@1: moel@90: private void AppendMSRData(StringBuilder r, uint msr, int thread) { moel@49: uint eax, edx; moel@90: if (WinRing0.RdmsrTx(msr, out eax, out edx, (UIntPtr)(1L << thread))) { moel@49: r.Append(" "); moel@49: r.Append((msr).ToString("X8")); moel@49: r.Append(" "); moel@49: r.Append((edx).ToString("X8")); moel@49: r.Append(" "); moel@49: r.Append((eax).ToString("X8")); moel@49: r.AppendLine(); moel@49: } moel@49: } moel@49: moel@110: public override string GetReport() { moel@5: StringBuilder r = new StringBuilder(); moel@5: moel@5: r.AppendLine("Intel CPU"); moel@5: r.AppendLine(); moel@5: r.AppendFormat("Name: {0}{1}", name, Environment.NewLine); moel@63: r.AppendFormat("Number of Cores: {0}{1}", coreCount, moel@22: Environment.NewLine); moel@90: r.AppendFormat("Threads per Core: {0}{1}", cpuid[0].Length, moel@90: Environment.NewLine); moel@79: r.AppendLine("TSC: " + moel@79: (hasTSC ? (invariantTSC ? "Invariant" : "Not Invariant") : "None")); moel@79: r.AppendLine(string.Format(CultureInfo.InvariantCulture, moel@79: "Timer Frequency: {0} MHz", Stopwatch.Frequency * 1e-6)); moel@79: r.AppendLine(string.Format(CultureInfo.InvariantCulture, moel@79: "Max Clock: {0} MHz", Math.Round(estimatedMaxClock * 100) * 0.01)); moel@5: r.AppendLine(); moel@5: moel@90: for (int i = 0; i < cpuid.Length; i++) { moel@49: r.AppendLine("MSR Core #" + (i + 1)); moel@49: r.AppendLine(); moel@49: r.AppendLine(" MSR EDX EAX"); moel@90: AppendMSRData(r, MSR_PLATFORM_INFO, cpuid[i][0].Thread); moel@90: AppendMSRData(r, IA32_PERF_STATUS, cpuid[i][0].Thread); moel@90: AppendMSRData(r, IA32_THERM_STATUS_MSR, cpuid[i][0].Thread); moel@90: AppendMSRData(r, IA32_TEMPERATURE_TARGET, cpuid[i][0].Thread); moel@49: r.AppendLine(); moel@49: } moel@49: moel@5: return r.ToString(); moel@1: } moel@1: moel@79: private double EstimateMaxClock(double timeWindow) { moel@79: long ticks = (long)(timeWindow * Stopwatch.Frequency); moel@79: uint lsbBegin, msbBegin, lsbEnd, msbEnd; moel@79: moel@79: Thread.BeginThreadAffinity(); moel@97: long timeBegin = Stopwatch.GetTimestamp() + moel@97: (long)Math.Ceiling(0.001 * ticks); moel@79: long timeEnd = timeBegin + ticks; moel@79: while (Stopwatch.GetTimestamp() < timeBegin) { } moel@79: WinRing0.Rdtsc(out lsbBegin, out msbBegin); moel@79: while (Stopwatch.GetTimestamp() < timeEnd) { } moel@79: WinRing0.Rdtsc(out lsbEnd, out msbEnd); moel@79: Thread.EndThreadAffinity(); moel@79: moel@79: ulong countBegin = ((ulong)msbBegin << 32) | lsbBegin; moel@79: ulong countEnd = ((ulong)msbEnd << 32) | lsbEnd; moel@79: moel@79: return (((double)(countEnd - countBegin)) * Stopwatch.Frequency) / moel@79: (timeEnd - timeBegin); moel@79: } moel@79: moel@110: public override void Update() { moel@1: for (int i = 0; i < coreTemperatures.Length; i++) { moel@46: uint eax, edx; moel@46: if (WinRing0.RdmsrTx( moel@90: IA32_THERM_STATUS_MSR, out eax, out edx, moel@90: (UIntPtr)(1L << cpuid[i][0].Thread))) { moel@1: // if reading is valid moel@1: if ((eax & 0x80000000) != 0) { moel@1: // get the dist from tjMax from bits 22:16 moel@63: float deltaT = ((eax & 0x007F0000) >> 16); moel@63: float tjMax = coreTemperatures[i].Parameters[0].Value; moel@63: float tSlope = coreTemperatures[i].Parameters[1].Value; moel@63: coreTemperatures[i].Value = tjMax - tSlope * deltaT; moel@24: } else { moel@155: coreTemperatures[i].Value = null; moel@1: } moel@79: } moel@24: } moel@24: moel@26: if (cpuLoad.IsAvailable) { moel@26: cpuLoad.Update(); moel@26: for (int i = 0; i < coreLoads.Length; i++) moel@26: coreLoads[i].Value = cpuLoad.GetCoreLoad(i); moel@49: if (totalLoad != null) moel@49: totalLoad.Value = cpuLoad.GetTotalLoad(); moel@24: } moel@79: moel@79: if (hasTSC) { moel@79: uint lsb, msb; moel@79: WinRing0.RdtscTx(out lsb, out msb, (UIntPtr)1); moel@79: long time = Stopwatch.GetTimestamp(); moel@79: ulong timeStampCount = ((ulong)msb << 32) | lsb; moel@79: double delta = ((double)(time - lastTime)) / Stopwatch.Frequency; moel@79: if (delta > 0.5) { moel@79: double maxClock; moel@79: if (invariantTSC) moel@79: maxClock = (timeStampCount - lastTimeStampCount) / (1e6 * delta); moel@79: else moel@79: maxClock = estimatedMaxClock; moel@79: moel@79: double busClock = 0; moel@79: uint eax, edx; moel@79: for (int i = 0; i < coreClocks.Length; i++) { moel@79: System.Threading.Thread.Sleep(1); moel@79: if (WinRing0.RdmsrTx(IA32_PERF_STATUS, out eax, out edx, moel@90: (UIntPtr)(1L << cpuid[i][0].Thread))) { moel@79: if (maxNehalemMultiplier > 0) { // Core i3, i5, i7 moel@79: uint nehalemMultiplier = eax & 0xff; moel@79: coreClocks[i].Value = moel@79: (float)(nehalemMultiplier * maxClock / maxNehalemMultiplier); moel@79: busClock = (float)(maxClock / maxNehalemMultiplier); moel@79: } else { // Core 2 moel@79: uint multiplier = (eax >> 8) & 0x1f; moel@79: uint maxMultiplier = (edx >> 8) & 0x1f; moel@79: // factor = multiplier * 2 to handle non integer multipliers moel@79: uint factor = (multiplier << 1) | ((eax >> 14) & 1); moel@79: uint maxFactor = (maxMultiplier << 1) | ((edx >> 14) & 1); moel@79: if (maxFactor > 0) { moel@79: coreClocks[i].Value = (float)(factor * maxClock / maxFactor); moel@79: busClock = (float)(2 * maxClock / maxFactor); moel@79: } moel@46: } moel@79: } else { // Intel Pentium 4 moel@79: // if IA32_PERF_STATUS is not available, assume maxClock moel@79: coreClocks[i].Value = (float)maxClock; moel@79: } moel@79: } moel@79: if (busClock > 0) { moel@79: this.busClock.Value = (float)busClock; moel@79: ActivateSensor(this.busClock); moel@46: } moel@44: } moel@79: lastTimeStampCount = timeStampCount; moel@79: lastTime = time; moel@44: } moel@46: } moel@46: } moel@1: }