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@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@1:
moel@7: private float tjMax = 0;
moel@7: private uint logicalProcessorsPerCore;
moel@1:
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@1:
moel@4: uint logicalProcessors = 1;
moel@4: if (cpuidData.GetLength(0) > 0x04)
moel@4: logicalProcessors = ((cpuidData[4, 0] >> 26) & 0x3F) + 1;
moel@4:
moel@7: logicalProcessorsPerCore = 1;
moel@4: if (cpuidData.GetLength(0) > 0x0B)
moel@4: logicalProcessorsPerCore = cpuidData[0x0B, 1] & 0xFF;
moel@4: if (logicalProcessorsPerCore == 0)
moel@4: logicalProcessorsPerCore = 1;
moel@4:
moel@4: uint 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@1: coreTemperatures = new Sensor[coreCount];
moel@1: for (int i = 0; i < coreTemperatures.Length; i++)
moel@1: coreTemperatures[i] =
moel@1: new Sensor("Core #" + (i + 1), i, tjMax, SensorType.Temperature,
moel@1: this);
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@1: get {
moel@1: return coreTemperatures;
moel@1: }
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@5: r.AppendFormat("Number of cores: {0}{1}", coreTemperatures.Length,
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@7: (UIntPtr)(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@1: }
moel@1: }
moel@1: }
moel@1: }
moel@1:
moel@1: #pragma warning disable 67
moel@1: public event SensorEventHandler SensorAdded;
moel@1: public event SensorEventHandler SensorRemoved;
moel@1: #pragma warning restore 67
moel@1: }
moel@1: }