moel@1: /*
moel@1:  
moel@344:   This Source Code Form is subject to the terms of the Mozilla Public
moel@344:   License, v. 2.0. If a copy of the MPL was not distributed with this
moel@344:   file, You can obtain one at http://mozilla.org/MPL/2.0/.
moel@1:  
moel@407:   Copyright (C) 2009-2013 Michael Möller <mmoeller@openhardwaremonitor.org>
moel@344: 	
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@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@279:     private const uint HWCR = 0xC0010015;
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@271:     private const ushort FAMILY_11H_MISCELLANEOUS_CONTROL_DEVICE_ID = 0x1303;
moel@301:     private const ushort FAMILY_12H_MISCELLANEOUS_CONTROL_DEVICE_ID = 0x1703;
moel@301:     private const ushort FAMILY_14H_MISCELLANEOUS_CONTROL_DEVICE_ID = 0x1703;
moel@407:     private const ushort FAMILY_15H_MODEL_00_MISC_CONTROL_DEVICE_ID = 0x1603;
moel@407:     private const ushort FAMILY_15H_MODEL_10_MISC_CONTROL_DEVICE_ID = 0x1403;
moel@407:     private const ushort FAMILY_16H_MODEL_00_MISC_CONTROL_DEVICE_ID = 0x1533;
moel@407: 
moel@197:     private const uint REPORTED_TEMPERATURE_CONTROL_REGISTER = 0xA4;
moel@273:     private const uint CLOCK_POWER_TIMING_CONTROL_0_REGISTER = 0xD4;
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@279:     private readonly double timeStampCounterMultiplier;
moel@279:     private readonly bool corePerformanceBoostSupport;
moel@201: 
moel@191:     public AMD10CPU(int processorIndex, CPUID[][] cpuid, ISettings settings)
moel@191:       : base(processorIndex, cpuid, settings) 
moel@196:     {            
moel@301:       // AMD family 1Xh 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@301:         case 0x12: miscellaneousControlDeviceId =
moel@301:           FAMILY_12H_MISCELLANEOUS_CONTROL_DEVICE_ID; break;
moel@271:         case 0x14: miscellaneousControlDeviceId = 
moel@273:           FAMILY_14H_MISCELLANEOUS_CONTROL_DEVICE_ID; break;
moel@407:         case 0x15:
moel@407:           switch (model & 0xF0) {
moel@407:             case 0x00: miscellaneousControlDeviceId =
moel@407:               FAMILY_15H_MODEL_00_MISC_CONTROL_DEVICE_ID; break;
moel@407:             case 0x10: miscellaneousControlDeviceId =
moel@407:               FAMILY_15H_MODEL_10_MISC_CONTROL_DEVICE_ID; break;
moel@407:             default: miscellaneousControlDeviceId = 0; break;
moel@407:           } break;
moel@407:         case 0x16:
moel@407:           switch (model & 0xF0) {
moel@407:             case 0x00: miscellaneousControlDeviceId =
moel@407:               FAMILY_16H_MODEL_00_MISC_CONTROL_DEVICE_ID; break;            
moel@407:             default: miscellaneousControlDeviceId = 0; break;
moel@407:           } 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@279:       corePerformanceBoostSupport = (cpuid[0][0].ExtData[7, 3] & (1 << 9)) > 0;
moel@279: 
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@279:       // disable core performance boost  
moel@279:       uint hwcrEax, hwcrEdx;
moel@279:       Ring0.Rdmsr(HWCR, out hwcrEax, out hwcrEdx);
moel@279:       if (corePerformanceBoostSupport) 
moel@279:         Ring0.Wrmsr(HWCR, hwcrEax | (1 << 25), hwcrEdx);
moel@279: 
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@279:       // restore core performance boost
moel@279:       if (corePerformanceBoostSupport)     
moel@279:         Ring0.Wrmsr(HWCR, hwcrEax, hwcrEdx);
moel@279: 
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@273:       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@279: 
moel@201:       while (Stopwatch.GetTimestamp() < timeEnd) { }
moel@236:       Ring0.Rdmsr(PERF_CTR_0, out lsbEnd, out msbEnd);
moel@279:       Ring0.Rdmsr(COFVID_STATUS, out eax, out edx);
moel@301:       double coreMultiplier = GetCoreMultiplier(eax);
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@279: 
moel@273:       return 0.25 * Math.Round(4 * TimeStampCounterFrequency / busFrequency);
moel@201:     }
moel@201: 
moel@191:     protected override uint[] GetMSRs() {
moel@279:       return new uint[] { PERF_CTL_0, PERF_CTR_0, HWCR, P_STATE_0, 
moel@279:         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@273:       if (family == 0x14) {
moel@273:         uint value = 0;
moel@273:         Ring0.ReadPciConfig(miscellaneousControlAddress,
moel@273:           CLOCK_POWER_TIMING_CONTROL_0_REGISTER, out value);
moel@273:         r.Append("PCI Register D18F3xD4: ");
moel@273:         r.AppendLine(value.ToString("X8", CultureInfo.InvariantCulture));
moel@273:       }
moel@201:       r.AppendLine();
moel@201: 
moel@196:       return r.ToString();
moel@196:     }
moel@196: 
moel@301:     private double GetCoreMultiplier(uint cofvidEax) {
moel@301:       switch (family) {
moel@301:         case 0x10:
moel@329:         case 0x11: 
moel@407:         case 0x15: 
moel@407:         case 0x16: {
moel@329:             // 8:6 CpuDid: current core divisor ID
moel@329:             // 5:0 CpuFid: current core frequency ID
moel@329:             uint cpuDid = (cofvidEax >> 6) & 7;
moel@329:             uint cpuFid = cofvidEax & 0x1F;
moel@329:             return 0.5 * (cpuFid + 0x10) / (1 << (int)cpuDid);
moel@301:           }
moel@329:         case 0x12: {
moel@329:             // 8:4 CpuFid: current CPU core frequency ID
moel@329:             // 3:0 CpuDid: current CPU core divisor ID
moel@329:             uint cpuFid = (cofvidEax >> 4) & 0x1F;
moel@329:             uint cpuDid = cofvidEax & 0xF;
moel@329:             double divisor;
moel@329:             switch (cpuDid) {
moel@329:               case 0: divisor = 1; break;
moel@329:               case 1: divisor = 1.5; break;
moel@329:               case 2: divisor = 2; break;
moel@329:               case 3: divisor = 3; break;
moel@329:               case 4: divisor = 4; break;
moel@329:               case 5: divisor = 6; break;
moel@329:               case 6: divisor = 8; break;
moel@329:               case 7: divisor = 12; break;
moel@329:               case 8: divisor = 16; break;
moel@329:               default: divisor = 1; break;
moel@329:             }
moel@329:             return (cpuFid + 0x10) / divisor;
moel@329:           }
moel@329:         case 0x14: {
moel@329:             // 8:4: current CPU core divisor ID most significant digit
moel@329:             // 3:0: current CPU core divisor ID least significant digit
moel@329:             uint divisorIdMSD = (cofvidEax >> 4) & 0x1F;
moel@329:             uint divisorIdLSD = cofvidEax & 0xF;
moel@329:             uint value = 0;
moel@329:             Ring0.ReadPciConfig(miscellaneousControlAddress,
moel@329:               CLOCK_POWER_TIMING_CONTROL_0_REGISTER, out value);
moel@329:             uint frequencyId = value & 0x1F;
moel@329:             return (frequencyId + 0x10) /
moel@329:               (divisorIdMSD + (divisorIdLSD * 0.25) + 1);
moel@329:           }
moel@301:         default:
moel@301:           return 1;
moel@301:       }
moel@273:     }
moel@273: 
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@329:             if (family == 0x15 && (value & 0x30000) == 0x30000) {
moel@407:               if ((model & 0xF0) == 0x00) {
moel@407:                 coreTemperature.Value = ((value >> 21) & 0x7FC) / 8.0f +
moel@407:                   coreTemperature.Parameters[0].Value - 49;
moel@407:               } else {
moel@407:                 coreTemperature.Value = ((value >> 21) & 0x7FF) / 8.0f +
moel@407:                   coreTemperature.Parameters[0].Value - 49;
moel@407:               }
moel@407:             } else if (family == 0x16 && 
moel@407:               ((value & 0x30000) == 0x30000 || (value & 0x80000) == 0x80000)) {
moel@407:                 coreTemperature.Value = ((value >> 21) & 0x7FF) / 8.0f +
moel@407:                   coreTemperature.Parameters[0].Value - 49;
moel@329:             } else {
moel@329:               coreTemperature.Value = ((value >> 21) & 0x7FF) / 8.0f +
moel@329:                 coreTemperature.Parameters[0].Value;
moel@329:             }
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@273:             double multiplier;
moel@301:             multiplier = GetCoreMultiplier(curEax);
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@298:     public override void Close() {      
moel@268:       if (temperatureStream != null) {
moel@268:         temperatureStream.Close();
moel@266:       }
moel@298:       base.Close();
moel@266:     }
moel@1:   }
moel@1: }