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

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• Hash : 9d737966
  Author :
  Date : 2019-08-14T12:25:12
  

  Standardize copyright notices to project style
  
  For all "ANGLE Project" copyrights, standardize to the format specified
  by the style guide. Changes:
  - "Copyright (c)" and "Copyright(c)" changed to just "Copyright".
  - Removed the second half of date ranges ("Y1Y1-Y2Y2"->"Y1Y1").
  - Fixed a small number of files that had no copyright date using the
    initial commit year from the version control history.
  - Fixed one instance of copyright being "The ANGLE Project" rather than
    "The ANGLE Project Authors"
  
  These changes are applied both to the copyright of source file, and
  where applicable to copyright statements that are generated by
  templates.
  
  BUG=angleproject:3811
  
  Change-Id: I973dd65e4ef9deeba232d5be74c768256a0eb2e5
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1754397
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

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• src/gpu_info_util/SystemInfo_linux.cpp

• //
  // Copyright 2013 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;
      }
  
      FindActiveGPU(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.
          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
  

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