kc3-lang/angle/src/gpu_info_util/SystemInfo_linux.cpp

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• Author : Corentin Wallez
  Date : 2017-02-16 10:58:46
  Hash : d83f64f5
  Message : gpu_info_util: Implement GetSystemInfo on OSX Also adds a test that prints the gathered information for manual checking and to help know what the system is when looking at the logs. BUG=angleproject:1874 Change-Id: Icb0cc390c9808fd8db0f966d667b94dde4b94e62 Reviewed-on: https://chromium-review.googlesource.com/443845 Commit-Queue: Corentin Wallez <cwallez@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Zhenyao Mo <zmo@chromium.org>

• src/gpu_info_util/SystemInfo_linux.cpp

• //
  // Copyright (c) 2013-2017 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  // SystemInfo_linux.cpp: implementation of the Linux-specific parts of SystemInfo.h
  
  #include "gpu_info_util/SystemInfo_internal.h"
  
  #include <cstring>
  #include <fstream>
  
  #include "common/angleutils.h"
  #include "common/debug.h"
  
  namespace angle
  {
  
  namespace
  {
  
  bool ReadWholeFile(const char *filename, std::string *content)
  {
      std::ifstream file(filename);
  
      if (!file)
      {
          return false;
      }
  
      *content = std::string(std::istreambuf_iterator<char>(file), std::istreambuf_iterator<char>());
      return true;
  }
  
  // Scan /sys/module/amdgpu/version.
  bool GetAMDBrahmaDriverVersion(std::string *version)
  {
      *version = "";
      std::string content;
  
      return ReadWholeFile("/sys/module/amdgpu/version", &content) &&
             ParseAMDBrahmaDriverVersion(content, version);
  }
  
  // Scan /etc/ati/amdpcsdb.default for "ReleaseVersion".
  bool GetAMDCatalystDriverVersion(std::string *version)
  {
      *version = "";
      std::string content;
  
      return ReadWholeFile("/etc/ati/amdpcsdb.default", &content) &&
             ParseAMDCatalystDriverVersion(content, version);
  }
  
  }  // anonymous namespace
  
  #if !defined(GPU_INFO_USE_X11)
  bool GetNvidiaDriverVersionWithXNVCtrl(std::string *version)
  {
      return false;
  }
  #endif
  
  #if !defined(GPU_INFO_USE_LIBPCI)
  bool GetPCIDevicesWithLibPCI(std::vector<GPUDeviceInfo> *devices)
  {
      return false;
  }
  #endif
  
  bool GetSystemInfo(SystemInfo *info)
  {
      if (!GetPCIDevicesWithLibPCI(&(info->gpus)))
      {
          return false;
      }
  
      if (info->gpus.size() == 0)
      {
          return false;
      }
  
      FindPrimaryGPU(info);
  
      for (size_t i = 0; i < info->gpus.size(); ++i)
      {
          GPUDeviceInfo *gpu = &info->gpus[i];
  
          // New GPUs might be added inside this loop, don't query for their driver version again
          if (!gpu->driverVendor.empty())
          {
              continue;
          }
  
          if (IsAMD(gpu->vendorId))
          {
              std::string version;
              if (GetAMDBrahmaDriverVersion(&version))
              {
                  gpu->driverVendor  = "AMD (Brahma)";
                  gpu->driverVersion = std::move(version);
              }
              else if (GetAMDCatalystDriverVersion(&version))
              {
                  gpu->driverVendor  = "AMD (Catalyst)";
                  gpu->driverVersion = std::move(version);
              }
          }
  
          if (IsNvidia(gpu->vendorId))
          {
              std::string version;
              if (GetNvidiaDriverVersionWithXNVCtrl(&version))
              {
                  gpu->driverVendor  = "Nvidia";
                  gpu->driverVersion = std::move(version);
              }
          }
  
          // In dual-GPU cases the PCI scan sometimes only gives us the Intel GPU.
          // If we are able to query for the Nvidia driver version, it means there
          // was hidden Nvidia GPU, so we add it to the list and make it primary.
          if (IsIntel(gpu->vendorId) && info->gpus.size() == 1)
          {
              std::string version;
              if (GetNvidiaDriverVersionWithXNVCtrl(&version))
              {
                  GPUDeviceInfo nvidiaInfo;
                  nvidiaInfo.vendorId = kVendorID_Nvidia;
                  nvidiaInfo.deviceId = 0;
                  gpu->driverVendor   = "Nvidia";
                  gpu->driverVersion  = std::move(version);
  
                  info->gpus.emplace_back(std::move(nvidiaInfo));
                  info->isOptimus = true;
              }
          }
      }
  
      return true;
  }
  
  }  // namespace angle