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 . 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: }