moel@1: /*
moel@1:  
moel@344:   This Source Code Form is subject to the terms of the Mozilla Public
moel@344:   License, v. 2.0. If a copy of the MPL was not distributed with this
moel@344:   file, You can obtain one at http://mozilla.org/MPL/2.0/.
moel@1:  
moel@350:   Copyright (C) 2009-2012 Michael Möller <mmoeller@openhardwaremonitor.org>
moel@344: 	
moel@1: */
moel@1: 
moel@1: using System;
moel@219: using System.Globalization;
moel@219: using System.Text;
moel@1: 
moel@1: namespace OpenHardwareMonitor.Hardware.CPU {
moel@191:   internal sealed class IntelCPU : GenericCPU {
moel@46: 
moel@219:     private enum Microarchitecture {
moel@219:       Unknown,
moel@264:       NetBurst,
moel@219:       Core,
moel@219:       Atom,
moel@249:       Nehalem,
moel@350:       SandyBridge,
moel@350:       IvyBridge
moel@219:     }
moel@219: 
moel@195:     private readonly Sensor[] coreTemperatures;
moel@306:     private readonly Sensor packageTemperature;
moel@195:     private readonly Sensor[] coreClocks;
moel@195:     private readonly Sensor busClock;
moel@321:     private readonly Sensor[] powerSensors;
moel@63: 
moel@219:     private readonly Microarchitecture microarchitecture;
moel@219:     private readonly double timeStampCounterMultiplier;
moel@79: 
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@306:     private const uint IA32_PACKAGE_THERM_STATUS = 0x1B1;
moel@317:     private const uint MSR_RAPL_POWER_UNIT = 0x606;
moel@317:     private const uint MSR_PKG_ENERY_STATUS = 0x611;
moel@321:     private const uint MSR_DRAM_ENERGY_STATUS = 0x619;
moel@317:     private const uint MSR_PP0_ENERY_STATUS = 0x639;
moel@320:     private const uint MSR_PP1_ENERY_STATUS = 0x641;
moel@317: 
moel@321:     private readonly uint[] energyStatusMSRs = { MSR_PKG_ENERY_STATUS, 
moel@321:       MSR_PP0_ENERY_STATUS, MSR_PP1_ENERY_STATUS, MSR_DRAM_ENERGY_STATUS };
moel@321:     private readonly string[] powerSensorLabels = 
moel@321:       { "CPU Package", "CPU Cores", "CPU Graphics", "CPU DRAM" };
moel@317:     private float energyUnitMultiplier = 0;
moel@321:     private DateTime[] lastEnergyTime;
moel@321:     private uint[] lastEnergyConsumed;
moel@317: 
moel@1: 
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@249:     private float[] GetTjMaxFromMSR() {
moel@249:       uint eax, edx;
moel@249:       float[] result = new float[coreCount];
moel@249:       for (int i = 0; i < coreCount; i++) {
moel@249:         if (Ring0.RdmsrTx(IA32_TEMPERATURE_TARGET, out eax,
moel@249:           out edx, 1UL << cpuid[i][0].Thread)) {
moel@249:           result[i] = (eax >> 16) & 0xFF;
moel@249:         } else {
moel@249:           result[i] = 100;
moel@249:         }
moel@249:       }
moel@249:       return result;
moel@249:     }
moel@249: 
moel@191:     public IntelCPU(int processorIndex, CPUID[][] cpuid, ISettings settings)
moel@321:       : base(processorIndex, cpuid, settings) {
moel@219:       // set tjMax
moel@69:       float[] tjMax;
moel@49:       switch (family) {
moel@49:         case 0x06: {
moel@49:             switch (model) {
moel@219:               case 0x0F: // Intel Core 2 (65nm)
moel@219:                 microarchitecture = Microarchitecture.Core;
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@219:               case 0x17: // Intel Core 2 (45nm)
moel@219:                 microarchitecture = Microarchitecture.Core;
moel@69:                 tjMax = Floats(100); break;
moel@114:               case 0x1C: // Intel Atom (45nm)
moel@219:                 microarchitecture = Microarchitecture.Atom;
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@191:                 } break;
moel@49:               case 0x1A: // Intel Core i7 LGA1366 (45nm)
moel@49:               case 0x1E: // Intel Core i5, i7 LGA1156 (45nm)
moel@249:               case 0x1F: // Intel Core i5, i7 
moel@49:               case 0x25: // Intel Core i3, i5, i7 LGA1156 (32nm)
moel@91:               case 0x2C: // Intel Core i7 LGA1366 (32nm) 6 Core
moel@350:               case 0x2E: // Intel Xeon Processor 7500 series (45nm)
moel@350:               case 0x2F: // Intel Xeon Processor (32nm)
moel@219:                 microarchitecture = Microarchitecture.Nehalem;
moel@249:                 tjMax = GetTjMaxFromMSR();
moel@249:                 break;
moel@249:               case 0x2A: // Intel Core i5, i7 2xxx LGA1155 (32nm)
moel@350:               case 0x2D: // Next Generation Intel Xeon, i7 3xxx LGA2011 (32nm)
moel@249:                 microarchitecture = Microarchitecture.SandyBridge;
moel@249:                 tjMax = GetTjMaxFromMSR();
moel@49:                 break;
moel@350:               case 0x3A: // Intel Core i5, i7 3xxx LGA1155 (22nm)
moel@350:                 microarchitecture = Microarchitecture.IvyBridge;
moel@350:                 tjMax = GetTjMaxFromMSR();
moel@350:                 break;
moel@49:               default:
moel@219:                 microarchitecture = Microarchitecture.Unknown;
moel@321:                 tjMax = Floats(100);
moel@219:                 break;
moel@49:             }
moel@49:           } break;
moel@264:         case 0x0F: {
moel@264:             switch (model) {
moel@264:               case 0x00: // Pentium 4 (180nm)
moel@264:               case 0x01: // Pentium 4 (130nm)
moel@264:               case 0x02: // Pentium 4 (130nm)
moel@264:               case 0x03: // Pentium 4, Celeron D (90nm)
moel@264:               case 0x04: // Pentium 4, Pentium D, Celeron D (90nm)
moel@264:               case 0x06: // Pentium 4, Pentium D, Celeron D (65nm)
moel@264:                 microarchitecture = Microarchitecture.NetBurst;
moel@321:                 tjMax = Floats(100);
moel@264:                 break;
moel@264:               default:
moel@264:                 microarchitecture = Microarchitecture.Unknown;
moel@264:                 tjMax = Floats(100);
moel@264:                 break;
moel@264:             }
moel@264:           } break;
moel@219:         default:
moel@219:           microarchitecture = Microarchitecture.Unknown;
moel@321:           tjMax = Floats(100);
moel@219:           break;
moel@219:       }
moel@219: 
moel@219:       // set timeStampCounterMultiplier
moel@219:       switch (microarchitecture) {
moel@264:         case Microarchitecture.NetBurst:
moel@219:         case Microarchitecture.Atom:
moel@219:         case Microarchitecture.Core: {
moel@219:             uint eax, edx;
moel@236:             if (Ring0.Rdmsr(IA32_PERF_STATUS, out eax, out edx)) {
moel@321:               timeStampCounterMultiplier =
moel@219:                 ((edx >> 8) & 0x1f) + 0.5 * ((edx >> 14) & 1);
moel@219:             }
moel@219:           } break;
moel@321:         case Microarchitecture.Nehalem:
moel@350:         case Microarchitecture.SandyBridge:
moel@350:         case Microarchitecture.IvyBridge: {
moel@219:             uint eax, edx;
moel@236:             if (Ring0.Rdmsr(MSR_PLATFORM_INFO, out eax, out edx)) {
moel@219:               timeStampCounterMultiplier = (eax >> 8) & 0xff;
moel@219:             }
moel@219:           } break;
moel@350:         default: 
moel@350:           timeStampCounterMultiplier = 0;
moel@350:           break;
moel@49:       }
moel@1: 
moel@306:       // check if processor supports a digital thermal sensor at core level
moel@191:       if (cpuid[0][0].Data.GetLength(0) > 6 &&
moel@350:         (cpuid[0][0].Data[6, 0] & 1) != 0 && 
moel@350:         microarchitecture != Microarchitecture.Unknown) 
moel@350:       {
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@321:             SensorType.Temperature, this, new[] { 
moel@63:               new ParameterDescription(
moel@306:                 "TjMax [°C]", "TjMax temperature of the core sensor.\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@165:                 "Temperature = TjMax - TSlope * Value.", 1)}, settings);
moel@155:           ActivateSensor(coreTemperatures[i]);
moel@44:         }
moel@44:       } else {
moel@44:         coreTemperatures = new Sensor[0];
moel@1:       }
moel@49: 
moel@306:       // check if processor supports a digital thermal sensor at package level
moel@306:       if (cpuid[0][0].Data.GetLength(0) > 6 &&
moel@350:         (cpuid[0][0].Data[6, 0] & 0x40) != 0 && 
moel@350:         microarchitecture != Microarchitecture.Unknown) 
moel@350:       {
moel@321:         packageTemperature = new Sensor("CPU Package",
moel@321:           coreTemperatures.Length, SensorType.Temperature, this, new[] { 
moel@306:               new ParameterDescription(
moel@306:                 "TjMax [°C]", "TjMax temperature of the package sensor.\n" + 
moel@306:                 "Temperature = TjMax - TSlope * Value.", tjMax[0]), 
moel@306:               new ParameterDescription("TSlope [°C]", 
moel@306:                 "Temperature slope of the digital thermal sensor.\n" + 
moel@306:                 "Temperature = TjMax - TSlope * Value.", 1)}, settings);
moel@306:         ActivateSensor(packageTemperature);
moel@321:       }
moel@306: 
moel@191:       busClock = new Sensor("Bus Speed", 0, SensorType.Clock, this, settings);
moel@44:       coreClocks = new Sensor[coreCount];
moel@44:       for (int i = 0; i < coreClocks.Length; i++) {
moel@49:         coreClocks[i] =
moel@165:           new Sensor(CoreString(i), i + 1, SensorType.Clock, this, settings);
moel@350:         if (HasTimeStampCounter && microarchitecture != Microarchitecture.Unknown)
moel@79:           ActivateSensor(coreClocks[i]);
moel@44:       }
moel@191: 
moel@350:       if (microarchitecture == Microarchitecture.SandyBridge ||
moel@350:           microarchitecture == Microarchitecture.IvyBridge) 
moel@350:       {
moel@321:         powerSensors = new Sensor[energyStatusMSRs.Length];
moel@321:         lastEnergyTime = new DateTime[energyStatusMSRs.Length];
moel@321:         lastEnergyConsumed = new uint[energyStatusMSRs.Length];
moel@321: 
moel@317:         uint eax, edx;
moel@317:         if (Ring0.Rdmsr(MSR_RAPL_POWER_UNIT, out eax, out edx))
moel@317:           energyUnitMultiplier = 1.0f / (1 << (int)((eax >> 8) & 0x1FF));
moel@317: 
moel@321:         if (energyUnitMultiplier != 0) {
moel@321:           for (int i = 0; i < energyStatusMSRs.Length; i++) {
moel@321:             if (!Ring0.Rdmsr(energyStatusMSRs[i], out eax, out edx))
moel@321:               continue;
moel@317: 
moel@321:             lastEnergyTime[i] = DateTime.UtcNow;
moel@321:             lastEnergyConsumed[i] = eax;
moel@321:             powerSensors[i] = new Sensor(powerSensorLabels[i], i,
moel@321:               SensorType.Power, this, settings);
moel@321:             ActivateSensor(powerSensors[i]);
moel@321:           }
moel@317:         }
moel@317:       }
moel@317: 
moel@191:       Update();
moel@1:     }
moel@1: 
moel@191:     protected override uint[] GetMSRs() {
moel@321:       return new[] {
moel@191:         MSR_PLATFORM_INFO,
moel@191:         IA32_PERF_STATUS ,
moel@191:         IA32_THERM_STATUS_MSR,
moel@306:         IA32_TEMPERATURE_TARGET,
moel@317:         IA32_PACKAGE_THERM_STATUS,
moel@317:         MSR_RAPL_POWER_UNIT,
moel@317:         MSR_PKG_ENERY_STATUS,
moel@321:         MSR_DRAM_ENERGY_STATUS,
moel@320:         MSR_PP0_ENERY_STATUS,
moel@320:         MSR_PP1_ENERY_STATUS
moel@191:       };
moel@1:     }
moel@1: 
moel@219:     public override string GetReport() {
moel@219:       StringBuilder r = new StringBuilder();
moel@219:       r.Append(base.GetReport());
moel@219: 
moel@264:       r.Append("Microarchitecture: ");
moel@264:       r.AppendLine(microarchitecture.ToString());
moel@219:       r.Append("Time Stamp Counter Multiplier: ");
moel@219:       r.AppendLine(timeStampCounterMultiplier.ToString(
moel@219:         CultureInfo.InvariantCulture));
moel@219:       r.AppendLine();
moel@219: 
moel@219:       return r.ToString();
moel@219:     }
moel@219: 
moel@191:     public override void Update() {
moel@191:       base.Update();
moel@1: 
moel@1:       for (int i = 0; i < coreTemperatures.Length; i++) {
moel@46:         uint eax, edx;
moel@236:         if (Ring0.RdmsrTx(
moel@191:           IA32_THERM_STATUS_MSR, out eax, out edx,
moel@238:             1UL << 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@306:       if (packageTemperature != null) {
moel@306:         uint eax, edx;
moel@306:         if (Ring0.RdmsrTx(
moel@315:           IA32_PACKAGE_THERM_STATUS, out eax, out edx,
moel@306:             1UL << cpuid[0][0].Thread)) {
moel@306:           // get the dist from tjMax from bits 22:16
moel@306:           float deltaT = ((eax & 0x007F0000) >> 16);
moel@306:           float tjMax = packageTemperature.Parameters[0].Value;
moel@306:           float tSlope = packageTemperature.Parameters[1].Value;
moel@306:           packageTemperature.Value = tjMax - tSlope * deltaT;
moel@306:         } else {
moel@306:           packageTemperature.Value = null;
moel@306:         }
moel@306:       }
moel@306: 
moel@350:       if (HasTimeStampCounter && timeStampCounterMultiplier > 0) {
moel@191:         double newBusClock = 0;
moel@191:         uint eax, edx;
moel@191:         for (int i = 0; i < coreClocks.Length; i++) {
moel@191:           System.Threading.Thread.Sleep(1);
moel@236:           if (Ring0.RdmsrTx(IA32_PERF_STATUS, out eax, out edx,
moel@321:             1UL << cpuid[i][0].Thread)) {
moel@321:             newBusClock =
moel@219:               TimeStampCounterFrequency / timeStampCounterMultiplier;
moel@250:             switch (microarchitecture) {
moel@250:               case Microarchitecture.Nehalem: {
moel@250:                   uint multiplier = eax & 0xff;
moel@250:                   coreClocks[i].Value = (float)(multiplier * newBusClock);
moel@250:                 } break;
moel@350:               case Microarchitecture.SandyBridge:
moel@350:               case Microarchitecture.IvyBridge: {
moel@250:                   uint multiplier = (eax >> 8) & 0xff;
moel@250:                   coreClocks[i].Value = (float)(multiplier * newBusClock);
moel@250:                 } break;
moel@250:               default: {
moel@321:                   double multiplier =
moel@250:                     ((eax >> 8) & 0x1f) + 0.5 * ((eax >> 14) & 1);
moel@250:                   coreClocks[i].Value = (float)(multiplier * newBusClock);
moel@250:                 } break;
moel@321:             }
moel@321:           } else {
moel@201:             // if IA32_PERF_STATUS is not available, assume TSC frequency
moel@201:             coreClocks[i].Value = (float)TimeStampCounterFrequency;
moel@46:           }
moel@44:         }
moel@191:         if (newBusClock > 0) {
moel@191:           this.busClock.Value = (float)newBusClock;
moel@191:           ActivateSensor(this.busClock);
moel@191:         }
moel@44:       }
moel@317: 
moel@321:       if (powerSensors != null) {
moel@321:         foreach (Sensor sensor in powerSensors) {
moel@321:           if (sensor == null)
moel@321:             continue;
moel@317: 
moel@321:           uint eax, edx;
moel@321:           if (!Ring0.Rdmsr(energyStatusMSRs[sensor.Index], out eax, out edx))
moel@321:             continue;
moel@317: 
moel@317:           DateTime time = DateTime.UtcNow;
moel@317:           uint energyConsumed = eax;
moel@321:           float deltaTime =
moel@321:             (float)(time - lastEnergyTime[sensor.Index]).TotalSeconds;
moel@321:           if (deltaTime < 0.01)
moel@321:             continue;
moel@321: 
moel@321:           sensor.Value = energyUnitMultiplier * unchecked(
moel@321:             energyConsumed - lastEnergyConsumed[sensor.Index]) / deltaTime;
moel@321:           lastEnergyTime[sensor.Index] = time;
moel@321:           lastEnergyConsumed[sensor.Index] = energyConsumed;
moel@317:         }
moel@317:       }
moel@46:     }
moel@191:   }
moel@1: }