xbmc/utils/CPUInfo.h

   1 /*
   2  *  Copyright (C) 2005-2018 Team Kodi
   3  *  This file is part of Kodi - https://kodi.tv
   4  *
   5  *  SPDX-License-Identifier: GPL-2.0-or-later
   6  *  See LICENSES/README.md for more information.
   7  */
   8
   9 #pragma once
  10
  11 #include "threads/SystemClock.h"
  12 #include "utils/Temperature.h"
  13
  14 #include <chrono>
  15 #include <memory>
  16 #include <string>
  17 #include <vector>
  18
  19 enum CpuFeature
  20 {
  21   CPU_FEATURE_MMX = 1 << 0,
  22   CPU_FEATURE_MMX2 = 1 << 1,
  23   CPU_FEATURE_SSE = 1 << 2,
  24   CPU_FEATURE_SSE2 = 1 << 3,
  25   CPU_FEATURE_SSE3 = 1 << 4,
  26   CPU_FEATURE_SSSE3 = 1 << 5,
  27   CPU_FEATURE_SSE4 = 1 << 6,
  28   CPU_FEATURE_SSE42 = 1 << 7,
  29   CPU_FEATURE_3DNOW = 1 << 8,
  30   CPU_FEATURE_3DNOWEXT = 1 << 9,
  31   CPU_FEATURE_ALTIVEC = 1 << 10,
  32   CPU_FEATURE_NEON = 1 << 11,
  33 };
  34
  35 struct CoreInfo
  36 {
  37   int m_id = 0;
  38   double m_usagePercent = 0.0;
  39   std::size_t m_activeTime = 0;
  40   std::size_t m_idleTime = 0;
  41   std::size_t m_totalTime = 0;
  42 };
  43
  44 class CCPUInfo
  45 {
  46 public:
  47   // Defines to help with calls to CPUID
  48   const unsigned int CPUID_INFOTYPE_MANUFACTURER = 0x00000000;
  49   const unsigned int CPUID_INFOTYPE_STANDARD = 0x00000001;
  50   const unsigned int CPUID_INFOTYPE_EXTENDED_IMPLEMENTED = 0x80000000;
  51   const unsigned int CPUID_INFOTYPE_EXTENDED = 0x80000001;
  52   const unsigned int CPUID_INFOTYPE_PROCESSOR_1 = 0x80000002;
  53   const unsigned int CPUID_INFOTYPE_PROCESSOR_2 = 0x80000003;
  54   const unsigned int CPUID_INFOTYPE_PROCESSOR_3 = 0x80000004;
  55
  56   // Standard Features
  57   // Bitmasks for the values returned by a call to cpuid with eax=0x00000001
  58   const unsigned int CPUID_00000001_ECX_SSE3 = (1 << 0);
  59   const unsigned int CPUID_00000001_ECX_SSSE3 = (1 << 9);
  60   const unsigned int CPUID_00000001_ECX_SSE4 = (1 << 19);
  61   const unsigned int CPUID_00000001_ECX_SSE42 = (1 << 20);
  62
  63   const unsigned int CPUID_00000001_EDX_MMX = (1 << 23);
  64   const unsigned int CPUID_00000001_EDX_SSE = (1 << 25);
  65   const unsigned int CPUID_00000001_EDX_SSE2 = (1 << 26);
  66
  67   // Extended Features
  68   // Bitmasks for the values returned by a call to cpuid with eax=0x80000001
  69   const unsigned int CPUID_80000001_EDX_MMX2 = (1 << 22);
  70   const unsigned int CPUID_80000001_EDX_MMX = (1 << 23);
  71   const unsigned int CPUID_80000001_EDX_3DNOWEXT = (1 << 30);
  72   const unsigned int CPUID_80000001_EDX_3DNOW = (1U << 31);
  73
  74   // In milliseconds
  75   const std::chrono::milliseconds MINIMUM_TIME_BETWEEN_READS{500};
  76
  77   static std::shared_ptr<CCPUInfo> GetCPUInfo();
  78
  79   virtual bool SupportsCPUUsage() const { return true; }
  80
  81   virtual int GetUsedPercentage() = 0;
  82   virtual float GetCPUFrequency() = 0;
  83   virtual bool GetTemperature(CTemperature& temperature) = 0;
  84
  85   bool HasCoreId(int coreId) const;
  86   const CoreInfo GetCoreInfo(int coreId);
  87   std::string GetCoresUsageString();
  88
  89   unsigned int GetCPUFeatures() const { return m_cpuFeatures; }
  90   int GetCPUCount() const { return m_cpuCount; }
  91   std::string GetCPUModel() { return m_cpuModel; }
  92   std::string GetCPUBogoMips() { return m_cpuBogoMips; }
  93   std::string GetCPUSoC() { return m_cpuSoC; }
  94   std::string GetCPUHardware() { return m_cpuHardware; }
  95   std::string GetCPURevision() { return m_cpuRevision; }
  96   std::string GetCPUSerial() { return m_cpuSerial; }
  97
  98 protected:
  99   CCPUInfo() = default;
 100   virtual ~CCPUInfo() = default;
 101
 102   int m_lastUsedPercentage;
 103   XbmcThreads::EndTime<> m_nextUsedReadTime;
 104   std::string m_cpuVendor;
 105   std::string m_cpuModel;
 106   std::string m_cpuBogoMips;
 107   std::string m_cpuSoC;
 108   std::string m_cpuHardware;
 109   std::string m_cpuRevision;
 110   std::string m_cpuSerial;
 111
 112   double m_usagePercent{0.0};
 113   std::size_t m_activeTime{0};
 114   std::size_t m_idleTime{0};
 115   std::size_t m_totalTime{0};
 116
 117   int m_cpuCount;
 118   unsigned int m_cpuFeatures;
 119
 120   std::vector<CoreInfo> m_cores;
 121 };