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@266: Portions created by the Initial Developer are Copyright (C) 2009-2011
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@196: using System;
moel@201: using System.Collections.Generic;
moel@201: using System.Diagnostics;
moel@196: using System.Globalization;
moel@268: using System.IO;
moel@201: using System.Runtime.InteropServices;
moel@196: using System.Text;
moel@197: using System.Threading;
moel@196:
moel@1: namespace OpenHardwareMonitor.Hardware.CPU {
moel@165:
moel@196: internal sealed class AMD10CPU : AMDCPU {
moel@1:
moel@195: private readonly Sensor coreTemperature;
moel@197: private readonly Sensor[] coreClocks;
moel@197: private readonly Sensor busClock;
moel@201:
moel@201: private const uint PERF_CTL_0 = 0xC0010000;
moel@201: private const uint PERF_CTR_0 = 0xC0010004;
moel@201: private const uint P_STATE_0 = 0xC0010064;
moel@197: private const uint COFVID_STATUS = 0xC0010071;
moel@1:
moel@196: private const byte MISCELLANEOUS_CONTROL_FUNCTION = 3;
moel@251: private const ushort FAMILY_10H_MISCELLANEOUS_CONTROL_DEVICE_ID = 0x1203;
moel@251: private const ushort FAMILY_11H_MISCELLANEOUS_CONTROL_DEVICE_ID = 0x1303;
moel@197: private const uint REPORTED_TEMPERATURE_CONTROL_REGISTER = 0xA4;
moel@201:
moel@196: private readonly uint miscellaneousControlAddress;
moel@251: private readonly ushort miscellaneousControlDeviceId;
moel@1:
moel@268: private readonly FileStream temperatureStream;
moel@266:
moel@201: private double timeStampCounterMultiplier;
moel@201:
moel@191: public AMD10CPU(int processorIndex, CPUID[][] cpuid, ISettings settings)
moel@191: : base(processorIndex, cpuid, settings)
moel@196: {
moel@251: // AMD family 10h/11h processors support only one temperature sensor
moel@22: coreTemperature = new Sensor(
moel@134: "Core" + (coreCount > 1 ? " #1 - #" + coreCount : ""), 0,
moel@195: SensorType.Temperature, this, new [] {
moel@122: new ParameterDescription("Offset [°C]", "Temperature offset.", 0)
moel@165: }, settings);
moel@1:
moel@251: switch (family) {
moel@251: case 0x10: miscellaneousControlDeviceId =
moel@251: FAMILY_10H_MISCELLANEOUS_CONTROL_DEVICE_ID; break;
moel@251: case 0x11: miscellaneousControlDeviceId =
moel@251: FAMILY_11H_MISCELLANEOUS_CONTROL_DEVICE_ID; break;
moel@251: default: miscellaneousControlDeviceId = 0; break;
moel@251: }
moel@251:
moel@196: // get the pci address for the Miscellaneous Control registers
moel@196: miscellaneousControlAddress = GetPciAddress(
moel@251: MISCELLANEOUS_CONTROL_FUNCTION, miscellaneousControlDeviceId);
moel@42:
moel@197: busClock = new Sensor("Bus Speed", 0, SensorType.Clock, this, settings);
moel@197: coreClocks = new Sensor[coreCount];
moel@197: for (int i = 0; i < coreClocks.Length; i++) {
moel@197: coreClocks[i] = new Sensor(CoreString(i), i + 1, SensorType.Clock,
moel@197: this, settings);
moel@201: if (HasTimeStampCounter)
moel@197: ActivateSensor(coreClocks[i]);
moel@197: }
moel@197:
moel@238: // set affinity to the first thread for all frequency estimations
moel@238: ulong mask = ThreadAffinity.Set(1UL << cpuid[0][0].Thread);
moel@201:
moel@201: uint ctlEax, ctlEdx;
moel@236: Ring0.Rdmsr(PERF_CTL_0, out ctlEax, out ctlEdx);
moel@201: uint ctrEax, ctrEdx;
moel@236: Ring0.Rdmsr(PERF_CTR_0, out ctrEax, out ctrEdx);
moel@201:
moel@201: timeStampCounterMultiplier = estimateTimeStampCounterMultiplier();
moel@201:
moel@201: // restore the performance counter registers
moel@236: Ring0.Wrmsr(PERF_CTL_0, ctlEax, ctlEdx);
moel@236: Ring0.Wrmsr(PERF_CTR_0, ctrEax, ctrEdx);
moel@201:
moel@201: // restore the thread affinity.
moel@238: ThreadAffinity.Set(mask);
moel@201:
moel@266: // the file reader for lm-sensors support on Linux
moel@268: temperatureStream = null;
moel@266: int p = (int)Environment.OSVersion.Platform;
moel@266: if ((p == 4) || (p == 128)) {
moel@266: string[] devicePaths = Directory.GetDirectories("/sys/class/hwmon/");
moel@266: foreach (string path in devicePaths) {
moel@266: string name = null;
moel@266: try {
moel@266: using (StreamReader reader = new StreamReader(path + "/device/name"))
moel@266: name = reader.ReadLine();
moel@266: } catch (IOException) { }
moel@266: switch (name) {
moel@266: case "k10temp":
moel@268: temperatureStream = new FileStream(path + "/device/temp1_input",
moel@268: FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
moel@266: break;
moel@266: }
moel@266: }
moel@266: }
moel@266:
moel@1: Update();
moel@1: }
moel@1:
moel@201: private double estimateTimeStampCounterMultiplier() {
moel@201: // preload the function
moel@201: estimateTimeStampCounterMultiplier(0);
moel@201: estimateTimeStampCounterMultiplier(0);
moel@201:
moel@201: // estimate the multiplier
moel@201: List<double> estimate = new List<double>(3);
moel@201: for (int i = 0; i < 3; i++)
moel@201: estimate.Add(estimateTimeStampCounterMultiplier(0.025));
moel@201: estimate.Sort();
moel@201: return estimate[1];
moel@201: }
moel@201:
moel@201: private double estimateTimeStampCounterMultiplier(double timeWindow) {
moel@201: uint eax, edx;
moel@201:
moel@201: // select event "076h CPU Clocks not Halted" and enable the counter
moel@236: Ring0.Wrmsr(PERF_CTL_0,
moel@201: (1 << 22) | // enable performance counter
moel@201: (1 << 17) | // count events in user mode
moel@201: (1 << 16) | // count events in operating-system mode
moel@201: 0x76, 0x00000000);
moel@201:
moel@201: // set the counter to 0
moel@236: Ring0.Wrmsr(PERF_CTR_0, 0, 0);
moel@201:
moel@201: long ticks = (long)(timeWindow * Stopwatch.Frequency);
moel@201: uint lsbBegin, msbBegin, lsbEnd, msbEnd;
moel@201:
moel@201: long timeBegin = Stopwatch.GetTimestamp() +
moel@201: (long)Math.Ceiling(0.001 * ticks);
moel@201: long timeEnd = timeBegin + ticks;
moel@201: while (Stopwatch.GetTimestamp() < timeBegin) { }
moel@236: Ring0.Rdmsr(PERF_CTR_0, out lsbBegin, out msbBegin);
moel@201: while (Stopwatch.GetTimestamp() < timeEnd) { }
moel@236: Ring0.Rdmsr(PERF_CTR_0, out lsbEnd, out msbEnd);
moel@201:
moel@236: Ring0.Rdmsr(COFVID_STATUS, out eax, out edx);
moel@201: uint cpuDid = (eax >> 6) & 7;
moel@201: uint cpuFid = eax & 0x1F;
moel@201: double coreMultiplier = MultiplierFromIDs(cpuDid, cpuFid);
moel@201:
moel@201: ulong countBegin = ((ulong)msbBegin << 32) | lsbBegin;
moel@201: ulong countEnd = ((ulong)msbEnd << 32) | lsbEnd;
moel@201:
moel@201: double coreFrequency = 1e-6 *
moel@201: (((double)(countEnd - countBegin)) * Stopwatch.Frequency) /
moel@201: (timeEnd - timeBegin);
moel@201:
moel@201: double busFrequency = coreFrequency / coreMultiplier;
moel@201: return 0.5 * Math.Round(2 * TimeStampCounterFrequency / busFrequency);
moel@201: }
moel@201:
moel@191: protected override uint[] GetMSRs() {
moel@201: return new uint[] { PERF_CTL_0, PERF_CTR_0, P_STATE_0, COFVID_STATUS };
moel@1: }
moel@1:
moel@196: public override string GetReport() {
moel@196: StringBuilder r = new StringBuilder();
moel@196: r.Append(base.GetReport());
moel@196:
moel@197: r.Append("Miscellaneous Control Address: 0x");
moel@196: r.AppendLine((miscellaneousControlAddress).ToString("X",
moel@196: CultureInfo.InvariantCulture));
moel@201: r.Append("Time Stamp Counter Multiplier: ");
moel@201: r.AppendLine(timeStampCounterMultiplier.ToString(
moel@201: CultureInfo.InvariantCulture));
moel@201: r.AppendLine();
moel@201:
moel@196: return r.ToString();
moel@196: }
moel@196:
moel@201: private static double MultiplierFromIDs(uint divisorID, uint frequencyID) {
moel@197: return 0.5 * (frequencyID + 0x10) / (1 << (int)divisorID);
moel@197: }
moel@197:
moel@268: private string ReadFirstLine(Stream stream) {
moel@268: StringBuilder sb = new StringBuilder();
moel@268: try {
moel@268: stream.Seek(0, SeekOrigin.Begin);
moel@268: int b = stream.ReadByte();
moel@268: while (b != -1 && b != 10) {
moel@268: sb.Append((char)b);
moel@268: b = stream.ReadByte();
moel@268: }
moel@268: } catch { }
moel@268: return sb.ToString();
moel@268: }
moel@268:
moel@110: public override void Update() {
moel@191: base.Update();
moel@191:
moel@268: if (temperatureStream == null) {
moel@266: if (miscellaneousControlAddress != Ring0.InvalidPciAddress) {
moel@266: uint value;
moel@266: if (Ring0.ReadPciConfig(miscellaneousControlAddress,
moel@266: REPORTED_TEMPERATURE_CONTROL_REGISTER, out value)) {
moel@266: coreTemperature.Value = ((value >> 21) & 0x7FF) / 8.0f +
moel@266: coreTemperature.Parameters[0].Value;
moel@266: ActivateSensor(coreTemperature);
moel@266: } else {
moel@266: DeactivateSensor(coreTemperature);
moel@266: }
moel@266: }
moel@266: } else {
moel@268: string s = ReadFirstLine(temperatureStream);
moel@266: try {
moel@266: coreTemperature.Value = 0.001f *
moel@266: long.Parse(s, CultureInfo.InvariantCulture);
moel@42: ActivateSensor(coreTemperature);
moel@266: } catch {
moel@42: DeactivateSensor(coreTemperature);
moel@266: }
moel@24: }
moel@197:
moel@201: if (HasTimeStampCounter) {
moel@197: double newBusClock = 0;
moel@197:
moel@197: for (int i = 0; i < coreClocks.Length; i++) {
moel@197: Thread.Sleep(1);
moel@197:
moel@197: uint curEax, curEdx;
moel@236: if (Ring0.RdmsrTx(COFVID_STATUS, out curEax, out curEdx,
moel@238: 1UL << cpuid[i][0].Thread))
moel@197: {
moel@197: // 8:6 CpuDid: current core divisor ID
moel@197: // 5:0 CpuFid: current core frequency ID
moel@201: uint cpuDid = (curEax >> 6) & 7;
moel@201: uint cpuFid = curEax & 0x1F;
moel@201: double multiplier = MultiplierFromIDs(cpuDid, cpuFid);
moel@197:
moel@201: coreClocks[i].Value =
moel@201: (float)(multiplier * TimeStampCounterFrequency /
moel@201: timeStampCounterMultiplier);
moel@201: newBusClock =
moel@201: (float)(TimeStampCounterFrequency / timeStampCounterMultiplier);
moel@197: } else {
moel@201: coreClocks[i].Value = (float)TimeStampCounterFrequency;
moel@197: }
moel@197: }
moel@197:
moel@197: if (newBusClock > 0) {
moel@197: this.busClock.Value = (float)newBusClock;
moel@197: ActivateSensor(this.busClock);
moel@197: }
moel@197: }
moel@201: }
moel@266:
moel@266: public override void Close() {
moel@268: if (temperatureStream != null) {
moel@268: temperatureStream.Close();
moel@266: }
moel@266: }
moel@1: }
moel@1: }