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 <m.moeller@gmx.ch>.
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@1: using System.Reflection;
moel@1: using System.Text;
moel@1: 
moel@1: namespace OpenHardwareMonitor.Hardware.CPU {
moel@1:   public class IntelCPU : IHardware {
moel@1: 
moel@1:     private string name;
moel@1:     private Image icon;
moel@1: 
moel@1:     private Sensor[] coreTemperatures;
moel@24:     private Sensor totalLoad;
moel@24:     private Sensor[] coreLoads;
moel@24: 
moel@24:     private List<ISensor> active = new List<ISensor>();
moel@1: 
moel@7:     private float tjMax = 0;
moel@22:     private uint logicalProcessors;
moel@7:     private uint logicalProcessorsPerCore;
moel@22:     private uint coreCount;
moel@1: 
moel@24:     private PerformanceCounter totalLoadCounter;
moel@24:     private PerformanceCounter[] coreLoadCounters;
moel@24: 
moel@1:     private const uint IA32_THERM_STATUS_MSR = 0x019C;
moel@4:     private const uint IA32_TEMPERATURE_TARGET = 0x01A2;
moel@1: 
moel@1:     public IntelCPU(string name, uint family, uint model, uint stepping, 
moel@1:       uint[,] cpuidData, uint[,] cpuidExtData) {
moel@1:       
moel@1:       this.name = name;
moel@1:       this.icon = Utilities.EmbeddedResources.GetImage("cpu.png");
moel@22:             
moel@23:       logicalProcessors = 0;
moel@22:       if (cpuidData.GetLength(0) > 0x0B) {
moel@22:         uint eax, ebx, ecx, edx;
moel@22:         WinRing0.CpuidEx(0x0B, 0, out eax, out ebx, out ecx, out edx);
moel@23:         logicalProcessorsPerCore = ebx & 0xFF;
moel@23:         if (logicalProcessorsPerCore > 0) {
moel@23:           WinRing0.CpuidEx(0x0B, 1, out eax, out ebx, out ecx, out edx);
moel@23:           logicalProcessors = ebx & 0xFF;
moel@23:         }   
moel@23:       }
moel@23:       if (logicalProcessors <= 0 && cpuidData.GetLength(0) > 0x04) {
moel@4:         logicalProcessors = ((cpuidData[4, 0] >> 26) & 0x3F) + 1;
moel@22:         logicalProcessorsPerCore = 1;
moel@23:       }
moel@23:       if (logicalProcessors <= 0) {
moel@22:         logicalProcessors = 1;
moel@22:         logicalProcessorsPerCore = 1;
moel@22:       }
moel@4: 
moel@22:       coreCount = logicalProcessors / logicalProcessorsPerCore;
moel@1: 
moel@1:       switch (family) {
moel@1:         case 0x06: {
moel@1:           switch (model) {
moel@1:             case 0x0F: // Intel Core 65nm
moel@1:               switch (stepping) {
moel@1:                 case 0x06: // B2
moel@1:                   switch (coreCount) {
moel@1:                     case 2:
moel@1:                       tjMax = 80; break;
moel@1:                     case 4:
moel@1:                       tjMax = 90; break;
moel@1:                     default:
moel@1:                       tjMax = 85; break;
moel@1:                   }
moel@1:                   tjMax = 80; break;
moel@1:                 case 0x0B: // G0
moel@1:                   tjMax = 90; break;
moel@1:                 case 0x0D: // M0
moel@1:                   tjMax = 85; break;
moel@1:                 default:
moel@1:                   tjMax = 85; break;
moel@4:               } break;            
moel@1:             case 0x17: // Intel Core 45nm
moel@1:               tjMax = 100; break;
moel@4:             case 0x1C: // Intel Atom 
moel@4:               tjMax = 90; break;
moel@4:             case 0x1A:
moel@4:               uint eax = 0, edx = 0;
moel@4:               if (WinRing0.RdmsrPx(
moel@4:                   IA32_TEMPERATURE_TARGET, ref eax, ref edx, (UIntPtr)1)) {
moel@4:                 tjMax = (eax >> 16) & 0xFF;
moel@4:               } else
moel@4:                 tjMax = 100;
moel@4:               break;
moel@1:             default:
moel@1:               tjMax = 100; break;
moel@1:           }
moel@1:         } break;
moel@1:         default: tjMax = 100; break;
moel@1:       }
moel@1: 
moel@25:       try {
moel@25:         totalLoadCounter = new PerformanceCounter();
moel@25:         totalLoadCounter.CategoryName = "Processor";
moel@25:         totalLoadCounter.CounterName = "% Processor Time";
moel@25:         totalLoadCounter.InstanceName = "_Total";
moel@25:         totalLoadCounter.NextValue();        
moel@25:       } catch (Exception) {
moel@25:         totalLoadCounter = null;
moel@25:       }
moel@24:       totalLoad = new Sensor("CPU Total", 0, SensorType.Load, this);
moel@24: 
moel@24:       coreLoadCounters = new PerformanceCounter[
moel@24:         coreCount * logicalProcessorsPerCore];
moel@24:       for (int i = 0; i < coreLoadCounters.Length; i++) {
moel@25:         try {
moel@25:           coreLoadCounters[i] = new PerformanceCounter();
moel@25:           coreLoadCounters[i].CategoryName = "Processor";
moel@25:           coreLoadCounters[i].CounterName = "% Processor Time";
moel@25:           coreLoadCounters[i].InstanceName = i.ToString();
moel@25:           coreLoadCounters[i].NextValue();
moel@25:         } catch (Exception) {
moel@25:           coreLoadCounters[i] = null;
moel@25:         }
moel@24:       }
moel@24: 
moel@1:       coreTemperatures = new Sensor[coreCount];
moel@24:       coreLoads = new Sensor[coreCount];
moel@24:       for (int i = 0; i < coreTemperatures.Length; i++) {
moel@24:         coreTemperatures[i] = new Sensor("Core #" + (i + 1), i, tjMax,
moel@24:           SensorType.Temperature, this);
moel@24:         coreLoads[i] = new Sensor("Core #" + (i + 1), i + 1, 
moel@24:           SensorType.Load, this);
moel@24:       }
moel@1: 
moel@1:       Update();                   
moel@1:     }
moel@1: 
moel@1:     public string Name {
moel@1:       get { return name; }
moel@1:     }
moel@1: 
moel@1:     public string Identifier {
moel@1:       get { return "/intelcpu/0"; }
moel@1:     }
moel@1: 
moel@1:     public Image Icon {
moel@1:       get { return icon; }
moel@1:     }
moel@1: 
moel@1:     public ISensor[] Sensors {
moel@24:       get { return active.ToArray(); }
moel@1:     }
moel@1: 
moel@1:     public 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@22:       r.AppendFormat("Number of cores: {0}{1}", coreCount, 
moel@22:         Environment.NewLine);
moel@22:       r.AppendFormat("Threads per core: {0}{1}", logicalProcessorsPerCore,
moel@5:         Environment.NewLine);
moel@5:       r.AppendFormat("TjMax: {0}{1}", tjMax, Environment.NewLine);
moel@5:       r.AppendLine();
moel@5: 
moel@5:       return r.ToString();
moel@1:     }
moel@1: 
moel@1:     public void Update() {
moel@1: 
moel@1:       uint eax = 0, edx = 0;      
moel@1:       for (int i = 0; i < coreTemperatures.Length; i++) {
moel@1:         if (WinRing0.RdmsrPx(
moel@7:           IA32_THERM_STATUS_MSR, ref eax, ref edx, 
moel@13:             (UIntPtr)(1 << (int)(logicalProcessorsPerCore * i)))) 
moel@1:         {
moel@1:           // if reading is valid
moel@1:           if ((eax & 0x80000000) != 0) {
moel@1:             // get the dist from tjMax from bits 22:16
moel@1:             coreTemperatures[i].Value = tjMax - ((eax & 0x007F0000) >> 16);
moel@24:             ActivateSensor(coreTemperatures[i]);
moel@24:           } else {
moel@24:             DeactivateSensor(coreTemperatures[i]);
moel@1:           }
moel@1:         }        
moel@24:       }
moel@24: 
moel@25:       if (totalLoadCounter != null) {
moel@25:         totalLoad.Value = totalLoadCounter.NextValue();
moel@25:         ActivateSensor(totalLoad);
moel@25:       }
moel@24: 
moel@24:       for (int i = 0; i < coreLoads.Length; i++) {
moel@24:         float value = 0;
moel@25:         int count = 0;
moel@25:         for (int j = 0; j < logicalProcessorsPerCore; j++) {
moel@25:           PerformanceCounter counter =
moel@25:             coreLoadCounters[logicalProcessorsPerCore * i + j];
moel@25:           if (counter != null) {
moel@25:             value += counter.NextValue();
moel@25:             count++;
moel@25:           }
moel@25:         }
moel@25:         if (count > 0) {
moel@25:           value /= count;
moel@25:           coreLoads[i].Value = value;
moel@25:           ActivateSensor(coreLoads[i]);
moel@25:         }
moel@24:       }
moel@1:     }
moel@1: 
moel@24:     private void ActivateSensor(Sensor sensor) {
moel@24:       if (!active.Contains(sensor)) {
moel@24:         active.Add(sensor);
moel@24:         if (SensorAdded != null)
moel@24:           SensorAdded(sensor);
moel@24:       }
moel@24:     }
moel@24: 
moel@24:     private void DeactivateSensor(Sensor sensor) {
moel@24:       if (active.Contains(sensor)) {
moel@24:         active.Remove(sensor);
moel@24:         if (SensorRemoved != null)
moel@24:           SensorRemoved(sensor);
moel@24:       }
moel@24:     }
moel@24: 
moel@1:     public event SensorEventHandler SensorAdded;
moel@1:     public event SensorEventHandler SensorRemoved;
moel@1:   }
moel@1: }