OpenHardwareMonitor: Hardware/CPU/IntelCPU.cs@9b09e2ee0968

     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) 2009-2014 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       Broadwell,

    28       Silvermont

    29     }

    31     private readonly Sensor[] coreTemperatures;

    32     private readonly Sensor packageTemperature;

    33     private readonly Sensor[] coreClocks;

    34     private readonly Sensor busClock;

    35     private readonly Sensor[] powerSensors;

    37     private readonly Microarchitecture microarchitecture;

    38     private readonly double timeStampCounterMultiplier;

    40     private const uint IA32_THERM_STATUS_MSR = 0x019C;

    41     private const uint IA32_TEMPERATURE_TARGET = 0x01A2;

    42     private const uint IA32_PERF_STATUS = 0x0198;

    43     private const uint MSR_PLATFORM_INFO = 0xCE;

    44     private const uint IA32_PACKAGE_THERM_STATUS = 0x1B1;

    45     private const uint MSR_RAPL_POWER_UNIT = 0x606;

    46     private const uint MSR_PKG_ENERY_STATUS = 0x611;

    47     private const uint MSR_DRAM_ENERGY_STATUS = 0x619;

    48     private const uint MSR_PP0_ENERY_STATUS = 0x639;

    49     private const uint MSR_PP1_ENERY_STATUS = 0x641;

    51     private readonly uint[] energyStatusMSRs = { MSR_PKG_ENERY_STATUS,

    52       MSR_PP0_ENERY_STATUS, MSR_PP1_ENERY_STATUS, MSR_DRAM_ENERGY_STATUS };

    53     private readonly string[] powerSensorLabels =

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

    55     private float energyUnitMultiplier = 0;

    56     private DateTime[] lastEnergyTime;

    57     private uint[] lastEnergyConsumed;

    60     private float[] Floats(float f) {

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

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

    63         result[i] = f;

    64       return result;

    65     }

    67     private float[] GetTjMaxFromMSR() {

    68       uint eax, edx;

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

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

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

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

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

    74         } else {

    75           result[i] = 100;

    76         }

    77       }

    78       return result;

    79     }

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

    82       : base(processorIndex, cpuid, settings) {

    83       // set tjMax

    84       float[] tjMax;

    85       switch (family) {

    86         case 0x06: {

    87             switch (model) {

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

    89                 microarchitecture = Microarchitecture.Core;

    90                 switch (stepping) {

    91                   case 0x06: // B2

    92                     switch (coreCount) {

    93                       case 2:

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

    95                       case 4:

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

    97                       default:

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

    99                     }

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

   101                   case 0x0B: // G0

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

   103                   case 0x0D: // M0

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

   105                   default:

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

   107                 } break;

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

   109                 microarchitecture = Microarchitecture.Core;

   110                 tjMax = Floats(100); break;

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

   112                 microarchitecture = Microarchitecture.Atom;

   113                 switch (stepping) {

   114                   case 0x02: // C0

   115                     tjMax = Floats(90); break;

   116                   case 0x0A: // A0, B0

   117                     tjMax = Floats(100); break;

   118                   default:

   119                     tjMax = Floats(90); break;

   120                 } break;

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

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

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

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

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

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

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

   128                 microarchitecture = Microarchitecture.Nehalem;

   129                 tjMax = GetTjMaxFromMSR();

   130                 break;

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

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

   133                 microarchitecture = Microarchitecture.SandyBridge;

   134                 tjMax = GetTjMaxFromMSR();

   135                 break;

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

   137               case 0x3E: // Intel Core i7 4xxx LGA2011 (22nm)

   138                 microarchitecture = Microarchitecture.IvyBridge;

   139                 tjMax = GetTjMaxFromMSR();

   140                 break;

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

   142               case 0x3F: // Intel Xeon E5-2600/1600 v3, Core i7-59xx

   143                          // LGA2011-v3, Haswell-E (22nm)

   144               case 0x45: // Intel Core i5, i7 4xxxU (22nm)

   145               case 0x46:

   146                 microarchitecture = Microarchitecture.Haswell;

   147                 tjMax = GetTjMaxFromMSR();

   148                 break;

   149               case 0x3D: // Intel Core M-5xxx (14nm)

   150                 microarchitecture = Microarchitecture.Broadwell;

   151                 tjMax = GetTjMaxFromMSR();

   152                 break;

   153               case 0x36: // Intel Atom S1xxx, D2xxx, N2xxx (32nm)

   154                 microarchitecture = Microarchitecture.Atom;

   155                 tjMax = GetTjMaxFromMSR();

   156                 break;

   157               case 0x37: // Intel Atom E3xxx, Z3xxx (22nm)

   158               case 0x4A:

   159               case 0x4D: // Intel Atom C2xxx (22nm)

   160               case 0x5A:

   161               case 0x5D:

   162                 microarchitecture = Microarchitecture.Silvermont;

   163                 tjMax = GetTjMaxFromMSR();

   164                 break;

   165               default:

   166                 microarchitecture = Microarchitecture.Unknown;

   167                 tjMax = Floats(100);

   168                 break;

   169             }

   170           } break;

   171         case 0x0F: {

   172             switch (model) {

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

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

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

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

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

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

   179                 microarchitecture = Microarchitecture.NetBurst;

   180                 tjMax = Floats(100);

   181                 break;

   182               default:

   183                 microarchitecture = Microarchitecture.Unknown;

   184                 tjMax = Floats(100);

   185                 break;

   186             }

   187           } break;

   188         default:

   189           microarchitecture = Microarchitecture.Unknown;

   190           tjMax = Floats(100);

   191           break;

   192       }

   194       // set timeStampCounterMultiplier

   195       switch (microarchitecture) {

   196         case Microarchitecture.NetBurst:

   197         case Microarchitecture.Atom:

   198         case Microarchitecture.Core: {

   199             uint eax, edx;

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

   201               timeStampCounterMultiplier =

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

   203             }

   204           } break;

   205         case Microarchitecture.Nehalem:

   206         case Microarchitecture.SandyBridge:

   207         case Microarchitecture.IvyBridge:

   208         case Microarchitecture.Haswell:

   209         case Microarchitecture.Broadwell:

   210         case Microarchitecture.Silvermont: {

   211             uint eax, edx;

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

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

   214             }

   215           } break;

   216         default:

   217           timeStampCounterMultiplier = 0;

   218           break;

   219       }

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

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

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

   224         microarchitecture != Microarchitecture.Unknown)

   225       {

   226         coreTemperatures = new Sensor[coreCount];

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

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

   229             SensorType.Temperature, this, new[] {

   230               new ParameterDescription(

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

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

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

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

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

   236           ActivateSensor(coreTemperatures[i]);

   237         }

   238       } else {

   239         coreTemperatures = new Sensor[0];

   240       }

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

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

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

   245         microarchitecture != Microarchitecture.Unknown)

   246       {

   247         packageTemperature = new Sensor("CPU Package",

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

   249               new ParameterDescription(

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

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

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

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

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

   255         ActivateSensor(packageTemperature);

   256       }

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

   259       coreClocks = new Sensor[coreCount];

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

   261         coreClocks[i] =

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

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

   264           ActivateSensor(coreClocks[i]);

   265       }

   267       if (microarchitecture == Microarchitecture.SandyBridge ||

   268           microarchitecture == Microarchitecture.IvyBridge ||

   269           microarchitecture == Microarchitecture.Haswell ||

   270           microarchitecture == Microarchitecture.Broadwell ||

   271           microarchitecture == Microarchitecture.Silvermont)

   272       {

   273         powerSensors = new Sensor[energyStatusMSRs.Length];

   274         lastEnergyTime = new DateTime[energyStatusMSRs.Length];

   275         lastEnergyConsumed = new uint[energyStatusMSRs.Length];

   277         uint eax, edx;

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

   279           switch (microarchitecture) {

   280             case Microarchitecture.Silvermont:

   281               energyUnitMultiplier = 1.0e-6f * (1 << (int)((eax >> 8) & 0x1F));

   282               break;

   283             default:

   284               energyUnitMultiplier = 1.0f / (1 << (int)((eax >> 8) & 0x1F));

   285               break;

   286           }

   287         if (energyUnitMultiplier != 0) {

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

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

   290               continue;

   292             lastEnergyTime[i] = DateTime.UtcNow;

   293             lastEnergyConsumed[i] = eax;

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

   295               SensorType.Power, this, settings);

   296             ActivateSensor(powerSensors[i]);

   297           }

   298         }

   299       }

   301       Update();

   302     }

   304     protected override uint[] GetMSRs() {

   305       return new[] {

   306         MSR_PLATFORM_INFO,

   307         IA32_PERF_STATUS ,

   308         IA32_THERM_STATUS_MSR,

   309         IA32_TEMPERATURE_TARGET,

   310         IA32_PACKAGE_THERM_STATUS,

   311         MSR_RAPL_POWER_UNIT,

   312         MSR_PKG_ENERY_STATUS,

   313         MSR_DRAM_ENERGY_STATUS,

   314         MSR_PP0_ENERY_STATUS,

   315         MSR_PP1_ENERY_STATUS

   316       };

   317     }

   319     public override string GetReport() {

   320       StringBuilder r = new StringBuilder();

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

   323       r.Append("Microarchitecture: ");

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

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

   326       r.AppendLine(timeStampCounterMultiplier.ToString(

   327         CultureInfo.InvariantCulture));

   328       r.AppendLine();

   330       return r.ToString();

   331     }

   333     public override void Update() {

   334       base.Update();

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

   337         uint eax, edx;

   338         // if reading is valid

   339         if (Ring0.RdmsrTx(IA32_THERM_STATUS_MSR, out eax, out edx,

   340             1UL << cpuid[i][0].Thread) && (eax & 0x80000000) != 0)

   341         {

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

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

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

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

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

   347         } else {

   348           coreTemperatures[i].Value = null;

   349         }

   350       }

   352       if (packageTemperature != null) {

   353         uint eax, edx;

   354         // if reading is valid

   355         if (Ring0.RdmsrTx(IA32_PACKAGE_THERM_STATUS, out eax, out edx,

   356             1UL << cpuid[0][0].Thread) && (eax & 0x80000000) != 0)

   357         {

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

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

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

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

   362           packageTemperature.Value = tjMax - tSlope * deltaT;

   363         } else {

   364           packageTemperature.Value = null;

   365         }

   366       }

   368       if (HasTimeStampCounter && timeStampCounterMultiplier > 0) {

   369         double newBusClock = 0;

   370         uint eax, edx;

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

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

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

   374             1UL << cpuid[i][0].Thread)) {

   375             newBusClock =

   376               TimeStampCounterFrequency / timeStampCounterMultiplier;

   377             switch (microarchitecture) {

   378               case Microarchitecture.Nehalem: {

   379                   uint multiplier = eax & 0xff;

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

   381                 } break;

   382               case Microarchitecture.SandyBridge:

   383               case Microarchitecture.IvyBridge:

   384               case Microarchitecture.Haswell:

   385               case Microarchitecture.Broadwell:

   386               case Microarchitecture.Silvermont: {

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

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

   389                 } break;

   390               default: {

   391                   double multiplier =

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

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

   394                 } break;

   395             }

   396           } else {

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

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

   399           }

   400         }

   401         if (newBusClock > 0) {

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

   403           ActivateSensor(this.busClock);

   404         }

   405       }

   407       if (powerSensors != null) {

   408         foreach (Sensor sensor in powerSensors) {

   409           if (sensor == null)

   410             continue;

   412           uint eax, edx;

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

   414             continue;

   416           DateTime time = DateTime.UtcNow;

   417           uint energyConsumed = eax;

   418           float deltaTime =

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

   420           if (deltaTime < 0.01)

   421             continue;

   423           sensor.Value = energyUnitMultiplier * unchecked(

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

   425           lastEnergyTime[sensor.Index] = time;

   426           lastEnergyConsumed[sensor.Index] = energyConsumed;

   427         }

   428       }

   429     }

   430   }

   431 }

author	StephaneLenclud
	Thu, 18 Apr 2013 23:25:10 +0200
branch	MiniDisplay
changeset 444	9b09e2ee0968
parent 425	520bca5f2a7d
permissions	-rw-r--r--