OpenHardwareMonitor: Hardware/CPU/IntelCPU.cs@c7e2a6aa4f96

     1 /*

     3   This Source Code Form is subject to the terms of the Mozilla Public

     4   License, v. 2.0. If a copy of the MPL was not distributed with this

     5   file, You can obtain one at http://mozilla.org/MPL/2.0/.

     7   Copyright (C) 2009-2013 Michael Möller <mmoeller@openhardwaremonitor.org>

     9 */

    11 using System;

    12 using System.Globalization;

    13 using System.Text;

    15 namespace OpenHardwareMonitor.Hardware.CPU {

    16   internal sealed class IntelCPU : GenericCPU {

    18     private enum Microarchitecture {

    19       Unknown,

    20       NetBurst,

    21       Core,

    22       Atom,

    23       Nehalem,

    24       SandyBridge,

    25       IvyBridge,

    26       Haswell

    27     }

    29     private readonly Sensor[] coreTemperatures;

    30     private readonly Sensor packageTemperature;

    31     private readonly Sensor[] coreClocks;

    32     private readonly Sensor busClock;

    33     private readonly Sensor[] powerSensors;

    35     private readonly Microarchitecture microarchitecture;

    36     private readonly double timeStampCounterMultiplier;

    38     private const uint IA32_THERM_STATUS_MSR = 0x019C;

    39     private const uint IA32_TEMPERATURE_TARGET = 0x01A2;

    40     private const uint IA32_PERF_STATUS = 0x0198;

    41     private const uint MSR_PLATFORM_INFO = 0xCE;

    42     private const uint IA32_PACKAGE_THERM_STATUS = 0x1B1;

    43     private const uint MSR_RAPL_POWER_UNIT = 0x606;

    44     private const uint MSR_PKG_ENERY_STATUS = 0x611;

    45     private const uint MSR_DRAM_ENERGY_STATUS = 0x619;

    46     private const uint MSR_PP0_ENERY_STATUS = 0x639;

    47     private const uint MSR_PP1_ENERY_STATUS = 0x641;

    49     private readonly uint[] energyStatusMSRs = { MSR_PKG_ENERY_STATUS,

    50       MSR_PP0_ENERY_STATUS, MSR_PP1_ENERY_STATUS, MSR_DRAM_ENERGY_STATUS };

    51     private readonly string[] powerSensorLabels =

    52       { "CPU Package", "CPU Cores", "CPU Graphics", "CPU DRAM" };

    53     private float energyUnitMultiplier = 0;

    54     private DateTime[] lastEnergyTime;

    55     private uint[] lastEnergyConsumed;

    58     private float[] Floats(float f) {

    59       float[] result = new float[coreCount];

    60       for (int i = 0; i < coreCount; i++)

    61         result[i] = f;

    62       return result;

    63     }

    65     private float[] GetTjMaxFromMSR() {

    66       uint eax, edx;

    67       float[] result = new float[coreCount];

    68       for (int i = 0; i < coreCount; i++) {

    69         if (Ring0.RdmsrTx(IA32_TEMPERATURE_TARGET, out eax,

    70           out edx, 1UL << cpuid[i][0].Thread)) {

    71           result[i] = (eax >> 16) & 0xFF;

    72         } else {

    73           result[i] = 100;

    74         }

    75       }

    76       return result;

    77     }

    79     public IntelCPU(int processorIndex, CPUID[][] cpuid, ISettings settings)

    80       : base(processorIndex, cpuid, settings) {

    81       // set tjMax

    82       float[] tjMax;

    83       switch (family) {

    84         case 0x06: {

    85             switch (model) {

    86               case 0x0F: // Intel Core 2 (65nm)

    87                 microarchitecture = Microarchitecture.Core;

    88                 switch (stepping) {

    89                   case 0x06: // B2

    90                     switch (coreCount) {

    91                       case 2:

    92                         tjMax = Floats(80 + 10); break;

    93                       case 4:

    94                         tjMax = Floats(90 + 10); break;

    95                       default:

    96                         tjMax = Floats(85 + 10); break;

    97                     }

    98                     tjMax = Floats(80 + 10); break;

    99                   case 0x0B: // G0

   100                     tjMax = Floats(90 + 10); break;

   101                   case 0x0D: // M0

   102                     tjMax = Floats(85 + 10); break;

   103                   default:

   104                     tjMax = Floats(85 + 10); break;

   105                 } break;

   106               case 0x17: // Intel Core 2 (45nm)

   107                 microarchitecture = Microarchitecture.Core;

   108                 tjMax = Floats(100); break;

   109               case 0x1C: // Intel Atom (45nm)

   110                 microarchitecture = Microarchitecture.Atom;

   111                 switch (stepping) {

   112                   case 0x02: // C0

   113                     tjMax = Floats(90); break;

   114                   case 0x0A: // A0, B0

   115                     tjMax = Floats(100); break;

   116                   default:

   117                     tjMax = Floats(90); break;

   118                 } break;

   119               case 0x1A: // Intel Core i7 LGA1366 (45nm)

   120               case 0x1E: // Intel Core i5, i7 LGA1156 (45nm)

   121               case 0x1F: // Intel Core i5, i7

   122               case 0x25: // Intel Core i3, i5, i7 LGA1156 (32nm)

   123               case 0x2C: // Intel Core i7 LGA1366 (32nm) 6 Core

   124               case 0x2E: // Intel Xeon Processor 7500 series (45nm)

   125               case 0x2F: // Intel Xeon Processor (32nm)

   126                 microarchitecture = Microarchitecture.Nehalem;

   127                 tjMax = GetTjMaxFromMSR();

   128                 break;

   129               case 0x2A: // Intel Core i5, i7 2xxx LGA1155 (32nm)

   130               case 0x2D: // Next Generation Intel Xeon, i7 3xxx LGA2011 (32nm)

   131                 microarchitecture = Microarchitecture.SandyBridge;

   132                 tjMax = GetTjMaxFromMSR();

   133                 break;

   134               case 0x3A: // Intel Core i5, i7 3xxx LGA1155 (22nm)

   135                 microarchitecture = Microarchitecture.IvyBridge;

   136                 tjMax = GetTjMaxFromMSR();

   137                 break;

   138               case 0x3C: // Intel Core i5, i7 4xxx LGA1150 (22nm)

   139               case 0x45:

   140               case 0x46:

   141                 microarchitecture = Microarchitecture.Haswell;

   142                 tjMax = GetTjMaxFromMSR();

   143                 break;

   144               default:

   145                 microarchitecture = Microarchitecture.Unknown;

   146                 tjMax = Floats(100);

   147                 break;

   148             }

   149           } break;

   150         case 0x0F: {

   151             switch (model) {

   152               case 0x00: // Pentium 4 (180nm)

   153               case 0x01: // Pentium 4 (130nm)

   154               case 0x02: // Pentium 4 (130nm)

   155               case 0x03: // Pentium 4, Celeron D (90nm)

   156               case 0x04: // Pentium 4, Pentium D, Celeron D (90nm)

   157               case 0x06: // Pentium 4, Pentium D, Celeron D (65nm)

   158                 microarchitecture = Microarchitecture.NetBurst;

   159                 tjMax = Floats(100);

   160                 break;

   161               default:

   162                 microarchitecture = Microarchitecture.Unknown;

   163                 tjMax = Floats(100);

   164                 break;

   165             }

   166           } break;

   167         default:

   168           microarchitecture = Microarchitecture.Unknown;

   169           tjMax = Floats(100);

   170           break;

   171       }

   173       // set timeStampCounterMultiplier

   174       switch (microarchitecture) {

   175         case Microarchitecture.NetBurst:

   176         case Microarchitecture.Atom:

   177         case Microarchitecture.Core: {

   178             uint eax, edx;

   179             if (Ring0.Rdmsr(IA32_PERF_STATUS, out eax, out edx)) {

   180               timeStampCounterMultiplier =

   181                 ((edx >> 8) & 0x1f) + 0.5 * ((edx >> 14) & 1);

   182             }

   183           } break;

   184         case Microarchitecture.Nehalem:

   185         case Microarchitecture.SandyBridge:

   186         case Microarchitecture.IvyBridge:

   187         case Microarchitecture.Haswell: {

   188             uint eax, edx;

   189             if (Ring0.Rdmsr(MSR_PLATFORM_INFO, out eax, out edx)) {

   190               timeStampCounterMultiplier = (eax >> 8) & 0xff;

   191             }

   192           } break;

   193         default:

   194           timeStampCounterMultiplier = 0;

   195           break;

   196       }

   198       // check if processor supports a digital thermal sensor at core level

   199       if (cpuid[0][0].Data.GetLength(0) > 6 &&

   200         (cpuid[0][0].Data[6, 0] & 1) != 0 &&

   201         microarchitecture != Microarchitecture.Unknown)

   202       {

   203         coreTemperatures = new Sensor[coreCount];

   204         for (int i = 0; i < coreTemperatures.Length; i++) {

   205           coreTemperatures[i] = new Sensor(CoreString(i), i,

   206             SensorType.Temperature, this, new[] {

   207               new ParameterDescription(

   208                 "TjMax [°C]", "TjMax temperature of the core sensor.\n" +

   209                 "Temperature = TjMax - TSlope * Value.", tjMax[i]),

   210               new ParameterDescription("TSlope [°C]",

   211                 "Temperature slope of the digital thermal sensor.\n" +

   212                 "Temperature = TjMax - TSlope * Value.", 1)}, settings);

   213           ActivateSensor(coreTemperatures[i]);

   214         }

   215       } else {

   216         coreTemperatures = new Sensor[0];

   217       }

   219       // check if processor supports a digital thermal sensor at package level

   220       if (cpuid[0][0].Data.GetLength(0) > 6 &&

   221         (cpuid[0][0].Data[6, 0] & 0x40) != 0 &&

   222         microarchitecture != Microarchitecture.Unknown)

   223       {

   224         packageTemperature = new Sensor("CPU Package",

   225           coreTemperatures.Length, SensorType.Temperature, this, new[] {

   226               new ParameterDescription(

   227                 "TjMax [°C]", "TjMax temperature of the package sensor.\n" +

   228                 "Temperature = TjMax - TSlope * Value.", tjMax[0]),

   229               new ParameterDescription("TSlope [°C]",

   230                 "Temperature slope of the digital thermal sensor.\n" +

   231                 "Temperature = TjMax - TSlope * Value.", 1)}, settings);

   232         ActivateSensor(packageTemperature);

   233       }

   235       busClock = new Sensor("Bus Speed", 0, SensorType.Clock, this, settings);

   236       coreClocks = new Sensor[coreCount];

   237       for (int i = 0; i < coreClocks.Length; i++) {

   238         coreClocks[i] =

   239           new Sensor(CoreString(i), i + 1, SensorType.Clock, this, settings);

   240         if (HasTimeStampCounter && microarchitecture != Microarchitecture.Unknown)

   241           ActivateSensor(coreClocks[i]);

   242       }

   244       if (microarchitecture == Microarchitecture.SandyBridge ||

   245           microarchitecture == Microarchitecture.IvyBridge ||

   246           microarchitecture == Microarchitecture.Haswell)

   247       {

   248         powerSensors = new Sensor[energyStatusMSRs.Length];

   249         lastEnergyTime = new DateTime[energyStatusMSRs.Length];

   250         lastEnergyConsumed = new uint[energyStatusMSRs.Length];

   252         uint eax, edx;

   253         if (Ring0.Rdmsr(MSR_RAPL_POWER_UNIT, out eax, out edx))

   254           energyUnitMultiplier = 1.0f / (1 << (int)((eax >> 8) & 0x1FF));

   256         if (energyUnitMultiplier != 0) {

   257           for (int i = 0; i < energyStatusMSRs.Length; i++) {

   258             if (!Ring0.Rdmsr(energyStatusMSRs[i], out eax, out edx))

   259               continue;

   261             lastEnergyTime[i] = DateTime.UtcNow;

   262             lastEnergyConsumed[i] = eax;

   263             powerSensors[i] = new Sensor(powerSensorLabels[i], i,

   264               SensorType.Power, this, settings);

   265             ActivateSensor(powerSensors[i]);

   266           }

   267         }

   268       }

   270       Update();

   271     }

   273     protected override uint[] GetMSRs() {

   274       return new[] {

   275         MSR_PLATFORM_INFO,

   276         IA32_PERF_STATUS ,

   277         IA32_THERM_STATUS_MSR,

   278         IA32_TEMPERATURE_TARGET,

   279         IA32_PACKAGE_THERM_STATUS,

   280         MSR_RAPL_POWER_UNIT,

   281         MSR_PKG_ENERY_STATUS,

   282         MSR_DRAM_ENERGY_STATUS,

   283         MSR_PP0_ENERY_STATUS,

   284         MSR_PP1_ENERY_STATUS

   285       };

   286     }

   288     public override string GetReport() {

   289       StringBuilder r = new StringBuilder();

   290       r.Append(base.GetReport());

   292       r.Append("Microarchitecture: ");

   293       r.AppendLine(microarchitecture.ToString());

   294       r.Append("Time Stamp Counter Multiplier: ");

   295       r.AppendLine(timeStampCounterMultiplier.ToString(

   296         CultureInfo.InvariantCulture));

   297       r.AppendLine();

   299       return r.ToString();

   300     }

   302     public override void Update() {

   303       base.Update();

   305       for (int i = 0; i < coreTemperatures.Length; i++) {

   306         uint eax, edx;

   307         if (Ring0.RdmsrTx(

   308           IA32_THERM_STATUS_MSR, out eax, out edx,

   309             1UL << cpuid[i][0].Thread)) {

   310           // if reading is valid

   311           if ((eax & 0x80000000) != 0) {

   312             // get the dist from tjMax from bits 22:16

   313             float deltaT = ((eax & 0x007F0000) >> 16);

   314             float tjMax = coreTemperatures[i].Parameters[0].Value;

   315             float tSlope = coreTemperatures[i].Parameters[1].Value;

   316             coreTemperatures[i].Value = tjMax - tSlope * deltaT;

   317           } else {

   318             coreTemperatures[i].Value = null;

   319           }

   320         }

   321       }

   323       if (packageTemperature != null) {

   324         uint eax, edx;

   325         if (Ring0.RdmsrTx(

   326           IA32_PACKAGE_THERM_STATUS, out eax, out edx,

   327             1UL << cpuid[0][0].Thread)) {

   328           // get the dist from tjMax from bits 22:16

   329           float deltaT = ((eax & 0x007F0000) >> 16);

   330           float tjMax = packageTemperature.Parameters[0].Value;

   331           float tSlope = packageTemperature.Parameters[1].Value;

   332           packageTemperature.Value = tjMax - tSlope * deltaT;

   333         } else {

   334           packageTemperature.Value = null;

   335         }

   336       }

   338       if (HasTimeStampCounter && timeStampCounterMultiplier > 0) {

   339         double newBusClock = 0;

   340         uint eax, edx;

   341         for (int i = 0; i < coreClocks.Length; i++) {

   342           System.Threading.Thread.Sleep(1);

   343           if (Ring0.RdmsrTx(IA32_PERF_STATUS, out eax, out edx,

   344             1UL << cpuid[i][0].Thread)) {

   345             newBusClock =

   346               TimeStampCounterFrequency / timeStampCounterMultiplier;

   347             switch (microarchitecture) {

   348               case Microarchitecture.Nehalem: {

   349                   uint multiplier = eax & 0xff;

   350                   coreClocks[i].Value = (float)(multiplier * newBusClock);

   351                 } break;

   352               case Microarchitecture.SandyBridge:

   353               case Microarchitecture.IvyBridge:

   354               case Microarchitecture.Haswell: {

   355                   uint multiplier = (eax >> 8) & 0xff;

   356                   coreClocks[i].Value = (float)(multiplier * newBusClock);

   357                 } break;

   358               default: {

   359                   double multiplier =

   360                     ((eax >> 8) & 0x1f) + 0.5 * ((eax >> 14) & 1);

   361                   coreClocks[i].Value = (float)(multiplier * newBusClock);

   362                 } break;

   363             }

   364           } else {

   365             // if IA32_PERF_STATUS is not available, assume TSC frequency

   366             coreClocks[i].Value = (float)TimeStampCounterFrequency;

   367           }

   368         }

   369         if (newBusClock > 0) {

   370           this.busClock.Value = (float)newBusClock;

   371           ActivateSensor(this.busClock);

   372         }

   373       }

   375       if (powerSensors != null) {

   376         foreach (Sensor sensor in powerSensors) {

   377           if (sensor == null)

   378             continue;

   380           uint eax, edx;

   381           if (!Ring0.Rdmsr(energyStatusMSRs[sensor.Index], out eax, out edx))

   382             continue;

   384           DateTime time = DateTime.UtcNow;

   385           uint energyConsumed = eax;

   386           float deltaTime =

   387             (float)(time - lastEnergyTime[sensor.Index]).TotalSeconds;

   388           if (deltaTime < 0.01)

   389             continue;

   391           sensor.Value = energyUnitMultiplier * unchecked(

   392             energyConsumed - lastEnergyConsumed[sensor.Index]) / deltaTime;

   393           lastEnergyTime[sensor.Index] = time;

   394           lastEnergyConsumed[sensor.Index] = energyConsumed;

   395         }

   396       }

   397     }

   398   }

   399 }

author	moel.mich
	Sun, 09 Jun 2013 16:10:43 +0000
changeset 396	c7e2a6aa4f96
parent 350	6de77245e32b
child 417	4865cf06a7fa
permissions	-rw-r--r--