content/gpu/gpu_main.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include <stdlib.h>
   6
   7 #if defined(OS_WIN)
   8 #include <dwmapi.h>
   9 #include <windows.h>
  10 #endif
  11
  12 #include "base/lazy_instance.h"
  13 #include "base/message_loop/message_loop.h"
  14 #include "base/metrics/histogram.h"
  15 #include "base/metrics/statistics_recorder.h"
  16 #include "base/rand_util.h"
  17 #include "base/strings/string_number_conversions.h"
  18 #include "base/strings/stringprintf.h"
  19 #include "base/third_party/dynamic_annotations/dynamic_annotations.h"
  20 #include "base/threading/platform_thread.h"
  21 #include "base/trace_event/trace_event.h"
  22 #include "build/build_config.h"
  23 #include "content/child/child_process.h"
  24 #include "content/common/content_constants_internal.h"
  25 #include "content/common/gpu/gpu_config.h"
  26 #include "content/common/gpu/gpu_memory_buffer_factory.h"
  27 #include "content/common/gpu/gpu_messages.h"
  28 #include "content/common/gpu/media/gpu_jpeg_decode_accelerator.h"
  29 #include "content/common/gpu/media/gpu_video_decode_accelerator.h"
  30 #include "content/common/gpu/media/gpu_video_encode_accelerator.h"
  31 #include "content/common/sandbox_linux/sandbox_linux.h"
  32 #include "content/gpu/gpu_child_thread.h"
  33 #include "content/gpu/gpu_process.h"
  34 #include "content/gpu/gpu_watchdog_thread.h"
  35 #include "content/public/common/content_client.h"
  36 #include "content/public/common/content_switches.h"
  37 #include "content/public/common/main_function_params.h"
  38 #include "gpu/command_buffer/service/gpu_switches.h"
  39 #include "gpu/command_buffer/service/sync_point_manager.h"
  40 #include "gpu/config/gpu_info_collector.h"
  41 #include "gpu/config/gpu_switches.h"
  42 #include "gpu/config/gpu_util.h"
  43 #include "ui/events/platform/platform_event_source.h"
  44 #include "ui/gl/gl_context.h"
  45 #include "ui/gl/gl_implementation.h"
  46 #include "ui/gl/gl_surface.h"
  47 #include "ui/gl/gl_switches.h"
  48 #include "ui/gl/gpu_switching_manager.h"
  49
  50 #if defined(OS_WIN)
  51 #include "base/win/windows_version.h"
  52 #include "base/win/scoped_com_initializer.h"
  53 #include "sandbox/win/src/sandbox.h"
  54 #endif
  55
  56 #if defined(USE_X11)
  57 #include "ui/base/x/x11_util.h"
  58 #endif
  59
  60 #if defined(OS_LINUX)
  61 #include "content/public/common/sandbox_init.h"
  62 #endif
  63
  64 #if defined(OS_MACOSX)
  65 #include "base/message_loop/message_pump_mac.h"
  66 #include "content/common/sandbox_mac.h"
  67 #endif
  68
  69 #if defined(OS_CHROMEOS) && defined(ARCH_CPU_X86_FAMILY)
  70 #include "content/common/gpu/media/vaapi_wrapper.h"
  71 #endif
  72
  73 #if defined(SANITIZER_COVERAGE)
  74 #include <sanitizer/common_interface_defs.h>
  75 #include <sanitizer/coverage_interface.h>
  76 #endif
  77
  78 const int kGpuTimeout = 10000;
  79
  80 namespace content {
  81
  82 namespace {
  83
  84 void GetGpuInfoFromCommandLine(gpu::GPUInfo& gpu_info,
  85                                const base::CommandLine& command_line);
  86 bool WarmUpSandbox(const base::CommandLine& command_line);
  87
  88 #if !defined(OS_MACOSX)
  89 bool CollectGraphicsInfo(gpu::GPUInfo& gpu_info);
  90 #endif
  91
  92 #if defined(OS_LINUX)
  93 #if !defined(OS_CHROMEOS)
  94 bool CanAccessNvidiaDeviceFile();
  95 #endif
  96 bool StartSandboxLinux(const gpu::GPUInfo&, GpuWatchdogThread*, bool);
  97 #elif defined(OS_WIN)
  98 bool StartSandboxWindows(const sandbox::SandboxInterfaceInfo*);
  99 #endif
 100
 101 base::LazyInstance<GpuChildThread::DeferredMessages> deferred_messages =
 102     LAZY_INSTANCE_INITIALIZER;
 103
 104 bool GpuProcessLogMessageHandler(int severity,
 105                                  const char* file, int line,
 106                                  size_t message_start,
 107                                  const std::string& str) {
 108   std::string header = str.substr(0, message_start);
 109   std::string message = str.substr(message_start);
 110   deferred_messages.Get().push(new GpuHostMsg_OnLogMessage(
 111       severity, header, message));
 112   return false;
 113 }
 114
 115 }  // namespace anonymous
 116
 117 // Main function for starting the Gpu process.
 118 int GpuMain(const MainFunctionParams& parameters) {
 119   TRACE_EVENT0("gpu", "GpuMain");
 120   base::trace_event::TraceLog::GetInstance()->SetProcessName("GPU Process");
 121   base::trace_event::TraceLog::GetInstance()->SetProcessSortIndex(
 122       kTraceEventGpuProcessSortIndex);
 123
 124   const base::CommandLine& command_line = parameters.command_line;
 125   if (command_line.HasSwitch(switches::kGpuStartupDialog)) {
 126     ChildProcess::WaitForDebugger("Gpu");
 127   }
 128
 129   base::Time start_time = base::Time::Now();
 130
 131 #if defined(OS_WIN)
 132   // Prevent Windows from displaying a modal dialog on failures like not being
 133   // able to load a DLL.
 134   SetErrorMode(
 135       SEM_FAILCRITICALERRORS |
 136       SEM_NOGPFAULTERRORBOX |
 137       SEM_NOOPENFILEERRORBOX);
 138 #elif defined(USE_X11)
 139   ui::SetDefaultX11ErrorHandlers();
 140 #endif
 141
 142   logging::SetLogMessageHandler(GpuProcessLogMessageHandler);
 143
 144   if (command_line.HasSwitch(switches::kSupportsDualGpus)) {
 145     std::string types = command_line.GetSwitchValueASCII(
 146         switches::kGpuDriverBugWorkarounds);
 147     std::set<int> workarounds;
 148     gpu::StringToFeatureSet(types, &workarounds);
 149     if (workarounds.count(gpu::FORCE_DISCRETE_GPU) == 1)
 150       ui::GpuSwitchingManager::GetInstance()->ForceUseOfDiscreteGpu();
 151     else if (workarounds.count(gpu::FORCE_INTEGRATED_GPU) == 1)
 152       ui::GpuSwitchingManager::GetInstance()->ForceUseOfIntegratedGpu();
 153   }
 154
 155   // Initialization of the OpenGL bindings may fail, in which case we
 156   // will need to tear down this process. However, we can not do so
 157   // safely until the IPC channel is set up, because the detection of
 158   // early return of a child process is implemented using an IPC
 159   // channel error. If the IPC channel is not fully set up between the
 160   // browser and GPU process, and the GPU process crashes or exits
 161   // early, the browser process will never detect it.  For this reason
 162   // we defer tearing down the GPU process until receiving the
 163   // GpuMsg_Initialize message from the browser.
 164   bool dead_on_arrival = false;
 165
 166 #if defined(OS_WIN)
 167   // Use a UI message loop because ANGLE and the desktop GL platform can
 168   // create child windows to render to.
 169   base::MessageLoop main_message_loop(base::MessageLoop::TYPE_UI);
 170 #elif defined(OS_LINUX) && defined(USE_X11)
 171   // We need a UI loop so that we can grab the Expose events. See GLSurfaceGLX
 172   // and https://crbug.com/326995.
 173   base::MessageLoop main_message_loop(base::MessageLoop::TYPE_UI);
 174   scoped_ptr<ui::PlatformEventSource> event_source =
 175       ui::PlatformEventSource::CreateDefault();
 176 #elif defined(OS_LINUX)
 177   base::MessageLoop main_message_loop(base::MessageLoop::TYPE_DEFAULT);
 178 #elif defined(OS_MACOSX)
 179   // This is necessary for CoreAnimation layers hosted in the GPU process to be
 180   // drawn. See http://crbug.com/312462.
 181   scoped_ptr<base::MessagePump> pump(new base::MessagePumpCFRunLoop());
 182   base::MessageLoop main_message_loop(pump.Pass());
 183 #else
 184   base::MessageLoop main_message_loop(base::MessageLoop::TYPE_IO);
 185 #endif
 186
 187   base::PlatformThread::SetName("CrGpuMain");
 188
 189   // In addition to disabling the watchdog if the command line switch is
 190   // present, disable the watchdog on valgrind because the code is expected
 191   // to run slowly in that case.
 192   bool enable_watchdog =
 193       !command_line.HasSwitch(switches::kDisableGpuWatchdog) &&
 194       !RunningOnValgrind();
 195
 196   // Disable the watchdog in debug builds because they tend to only be run by
 197   // developers who will not appreciate the watchdog killing the GPU process.
 198 #ifndef NDEBUG
 199   enable_watchdog = false;
 200 #endif
 201
 202   bool delayed_watchdog_enable = false;
 203
 204 #if defined(OS_CHROMEOS)
 205   // Don't start watchdog immediately, to allow developers to switch to VT2 on
 206   // startup.
 207   delayed_watchdog_enable = true;
 208 #endif
 209
 210   scoped_refptr<GpuWatchdogThread> watchdog_thread;
 211
 212   // Start the GPU watchdog only after anything that is expected to be time
 213   // consuming has completed, otherwise the process is liable to be aborted.
 214   if (enable_watchdog && !delayed_watchdog_enable) {
 215     watchdog_thread = new GpuWatchdogThread(kGpuTimeout);
 216     base::Thread::Options options;
 217     options.timer_slack = base::TIMER_SLACK_MAXIMUM;
 218     watchdog_thread->StartWithOptions(options);
 219   }
 220
 221   // Initializes StatisticsRecorder which tracks UMA histograms.
 222   base::StatisticsRecorder::Initialize();
 223
 224   gpu::GPUInfo gpu_info;
 225   // Get vendor_id, device_id, driver_version from browser process through
 226   // commandline switches.
 227   GetGpuInfoFromCommandLine(gpu_info, command_line);
 228   gpu_info.in_process_gpu = false;
 229
 230 #if defined(OS_CHROMEOS) && defined(ARCH_CPU_X86_FAMILY)
 231   VaapiWrapper::PreSandboxInitialization();
 232 #endif
 233
 234   // Warm up resources that don't need access to GPUInfo.
 235   if (WarmUpSandbox(command_line)) {
 236 #if defined(OS_LINUX)
 237     bool initialized_sandbox = false;
 238     bool initialized_gl_context = false;
 239     bool should_initialize_gl_context = false;
 240     // On Chrome OS ARM Mali, GPU driver userspace creates threads when
 241     // initializing a GL context, so start the sandbox early.
 242     if (command_line.HasSwitch(switches::kGpuSandboxStartEarly)) {
 243       gpu_info.sandboxed = StartSandboxLinux(
 244           gpu_info, watchdog_thread.get(), should_initialize_gl_context);
 245       initialized_sandbox = true;
 246     }
 247 #endif  // defined(OS_LINUX)
 248
 249     base::TimeTicks before_initialize_one_off = base::TimeTicks::Now();
 250
 251     // Determine if we need to initialize GL here or it has already been done.
 252     bool gl_already_initialized = false;
 253 #if defined(OS_MACOSX)
 254     if (!command_line.HasSwitch(switches::kNoSandbox)) {
 255       // On Mac, if the sandbox is enabled, then GLSurface::InitializeOneOff()
 256       // is called from the sandbox warmup code before getting here.
 257       gl_already_initialized = true;
 258     }
 259 #endif
 260     if (command_line.HasSwitch(switches::kInProcessGPU)) {
 261       // With in-process GPU, GLSurface::InitializeOneOff() is called from
 262       // GpuChildThread before getting here.
 263       gl_already_initialized = true;
 264     }
 265
 266     // Load and initialize the GL implementation and locate the GL entry points.
 267     bool gl_initialized =
 268         gl_already_initialized
 269             ? gfx::GetGLImplementation() != gfx::kGLImplementationNone
 270             : gfx::GLSurface::InitializeOneOff();
 271     if (gl_initialized) {
 272       // We need to collect GL strings (VENDOR, RENDERER) for blacklisting
 273       // purposes. However, on Mac we don't actually use them. As documented in
 274       // crbug.com/222934, due to some driver issues, glGetString could take
 275       // multiple seconds to finish, which in turn cause the GPU process to
 276       // crash.
 277       // By skipping the following code on Mac, we don't really lose anything,
 278       // because the basic GPU information is passed down from browser process
 279       // and we already registered them through SetGpuInfo() above.
 280       base::TimeTicks before_collect_context_graphics_info =
 281           base::TimeTicks::Now();
 282 #if !defined(OS_MACOSX)
 283       if (!CollectGraphicsInfo(gpu_info))
 284         dead_on_arrival = true;
 285
 286 #if defined(OS_CHROMEOS) || defined(OS_ANDROID)
 287       // Recompute gpu driver bug workarounds - this is specifically useful
 288       // on systems where vendor_id/device_id aren't available.
 289       if (!command_line.HasSwitch(switches::kDisableGpuDriverBugWorkarounds)) {
 290         gpu::ApplyGpuDriverBugWorkarounds(
 291             gpu_info, const_cast<base::CommandLine*>(&command_line));
 292       }
 293 #endif
 294
 295 #if defined(OS_LINUX)
 296       initialized_gl_context = true;
 297 #if !defined(OS_CHROMEOS)
 298       if (gpu_info.gpu.vendor_id == 0x10de &&  // NVIDIA
 299           gpu_info.driver_vendor == "NVIDIA" &&
 300           !CanAccessNvidiaDeviceFile())
 301         dead_on_arrival = true;
 302 #endif  // !defined(OS_CHROMEOS)
 303 #endif  // defined(OS_LINUX)
 304 #endif  // !defined(OS_MACOSX)
 305       base::TimeDelta collect_context_time =
 306           base::TimeTicks::Now() - before_collect_context_graphics_info;
 307       UMA_HISTOGRAM_TIMES("GPU.CollectContextGraphicsInfo",
 308                           collect_context_time);
 309     } else {  // gl_initialized
 310       VLOG(1) << "gfx::GLSurface::InitializeOneOff failed";
 311       dead_on_arrival = true;
 312     }
 313
 314     base::TimeDelta initialize_one_off_time =
 315         base::TimeTicks::Now() - before_initialize_one_off;
 316     UMA_HISTOGRAM_MEDIUM_TIMES("GPU.InitializeOneOffMediumTime",
 317                                initialize_one_off_time);
 318
 319     if (enable_watchdog && delayed_watchdog_enable) {
 320       watchdog_thread = new GpuWatchdogThread(kGpuTimeout);
 321       base::Thread::Options options;
 322       options.timer_slack = base::TIMER_SLACK_MAXIMUM;
 323       watchdog_thread->StartWithOptions(options);
 324     }
 325
 326     // OSMesa is expected to run very slowly, so disable the watchdog in that
 327     // case.
 328     if (enable_watchdog &&
 329         gfx::GetGLImplementation() == gfx::kGLImplementationOSMesaGL) {
 330       watchdog_thread->Stop();
 331       watchdog_thread = NULL;
 332     }
 333
 334 #if defined(OS_LINUX)
 335     should_initialize_gl_context = !initialized_gl_context &&
 336                                    !dead_on_arrival;
 337
 338     if (!initialized_sandbox) {
 339       gpu_info.sandboxed = StartSandboxLinux(gpu_info, watchdog_thread.get(),
 340                                              should_initialize_gl_context);
 341     }
 342 #elif defined(OS_WIN)
 343     gpu_info.sandboxed = StartSandboxWindows(parameters.sandbox_info);
 344 #elif defined(OS_MACOSX)
 345     gpu_info.sandboxed = Sandbox::SandboxIsCurrentlyActive();
 346 #endif
 347
 348     gpu_info.video_decode_accelerator_supported_profiles =
 349         content::GpuVideoDecodeAccelerator::GetSupportedProfiles();
 350     gpu_info.video_encode_accelerator_supported_profiles =
 351         content::GpuVideoEncodeAccelerator::GetSupportedProfiles();
 352     gpu_info.jpeg_decode_accelerator_supported =
 353         content::GpuJpegDecodeAccelerator::IsSupported();
 354   } else {
 355     dead_on_arrival = true;
 356   }
 357
 358   logging::SetLogMessageHandler(NULL);
 359
 360   scoped_ptr<GpuMemoryBufferFactory> gpu_memory_buffer_factory =
 361       GpuMemoryBufferFactory::Create(
 362           GpuChildThread::GetGpuMemoryBufferFactoryType());
 363   gpu::SyncPointManager sync_point_manager(false);
 364
 365   GpuProcess gpu_process;
 366
 367   GpuChildThread* child_thread = new GpuChildThread(
 368       watchdog_thread.get(), dead_on_arrival, gpu_info, deferred_messages.Get(),
 369       gpu_memory_buffer_factory.get(),
 370       &sync_point_manager);
 371   while (!deferred_messages.Get().empty())
 372     deferred_messages.Get().pop();
 373
 374   child_thread->Init(start_time);
 375
 376   gpu_process.set_main_thread(child_thread);
 377
 378   if (watchdog_thread.get())
 379     watchdog_thread->AddPowerObserver();
 380
 381   {
 382     TRACE_EVENT0("gpu", "Run Message Loop");
 383     main_message_loop.Run();
 384   }
 385
 386   child_thread->StopWatchdog();
 387
 388   return 0;
 389 }
 390
 391 namespace {
 392
 393 void GetGpuInfoFromCommandLine(gpu::GPUInfo& gpu_info,
 394                                const base::CommandLine& command_line) {
 395   DCHECK(command_line.HasSwitch(switches::kGpuVendorID) &&
 396          command_line.HasSwitch(switches::kGpuDeviceID) &&
 397          command_line.HasSwitch(switches::kGpuDriverVersion));
 398   bool success = base::HexStringToUInt(
 399       command_line.GetSwitchValueASCII(switches::kGpuVendorID),
 400       &gpu_info.gpu.vendor_id);
 401   DCHECK(success);
 402   success = base::HexStringToUInt(
 403       command_line.GetSwitchValueASCII(switches::kGpuDeviceID),
 404       &gpu_info.gpu.device_id);
 405   DCHECK(success);
 406   gpu_info.driver_vendor =
 407       command_line.GetSwitchValueASCII(switches::kGpuDriverVendor);
 408   gpu_info.driver_version =
 409       command_line.GetSwitchValueASCII(switches::kGpuDriverVersion);
 410   GetContentClient()->SetGpuInfo(gpu_info);
 411 }
 412
 413 bool WarmUpSandbox(const base::CommandLine& command_line) {
 414   {
 415     TRACE_EVENT0("gpu", "Warm up rand");
 416     // Warm up the random subsystem, which needs to be done pre-sandbox on all
 417     // platforms.
 418     (void) base::RandUint64();
 419   }
 420   return true;
 421 }
 422
 423 #if !defined(OS_MACOSX)
 424 bool CollectGraphicsInfo(gpu::GPUInfo& gpu_info) {
 425   bool res = true;
 426   gpu::CollectInfoResult result = gpu::CollectContextGraphicsInfo(&gpu_info);
 427   switch (result) {
 428     case gpu::kCollectInfoFatalFailure:
 429       LOG(ERROR) << "gpu::CollectGraphicsInfo failed (fatal).";
 430       res = false;
 431       break;
 432     case gpu::kCollectInfoNonFatalFailure:
 433       DVLOG(1) << "gpu::CollectGraphicsInfo failed (non-fatal).";
 434       break;
 435     case gpu::kCollectInfoNone:
 436       NOTREACHED();
 437       break;
 438     case gpu::kCollectInfoSuccess:
 439       break;
 440   }
 441   GetContentClient()->SetGpuInfo(gpu_info);
 442   return res;
 443 }
 444 #endif
 445
 446 #if defined(OS_LINUX)
 447 #if !defined(OS_CHROMEOS)
 448 bool CanAccessNvidiaDeviceFile() {
 449   bool res = true;
 450   base::ThreadRestrictions::AssertIOAllowed();
 451   if (access("/dev/nvidiactl", R_OK) != 0) {
 452     DVLOG(1) << "NVIDIA device file /dev/nvidiactl access denied";
 453     res = false;
 454   }
 455   return res;
 456 }
 457 #endif
 458
 459 void CreateDummyGlContext() {
 460   scoped_refptr<gfx::GLSurface> surface(
 461       gfx::GLSurface::CreateOffscreenGLSurface(gfx::Size()));
 462   if (!surface.get()) {
 463     DVLOG(1) << "gfx::GLSurface::CreateOffscreenGLSurface failed";
 464     return;
 465   }
 466
 467   // On Linux, this is needed to make sure /dev/nvidiactl has
 468   // been opened and its descriptor cached.
 469   scoped_refptr<gfx::GLContext> context(gfx::GLContext::CreateGLContext(
 470       NULL, surface.get(), gfx::PreferDiscreteGpu));
 471   if (!context.get()) {
 472     DVLOG(1) << "gfx::GLContext::CreateGLContext failed";
 473     return;
 474   }
 475
 476   // Similarly, this is needed for /dev/nvidia0.
 477   if (context->MakeCurrent(surface.get())) {
 478     context->ReleaseCurrent(surface.get());
 479   } else {
 480     DVLOG(1)  << "gfx::GLContext::MakeCurrent failed";
 481   }
 482 }
 483
 484 void WarmUpSandboxNvidia(const gpu::GPUInfo& gpu_info,
 485                          bool should_initialize_gl_context) {
 486   // We special case Optimus since the vendor_id we see may not be Nvidia.
 487   bool uses_nvidia_driver = (gpu_info.gpu.vendor_id == 0x10de &&  // NVIDIA.
 488                              gpu_info.driver_vendor == "NVIDIA") ||
 489                             gpu_info.optimus;
 490   if (uses_nvidia_driver && should_initialize_gl_context) {
 491     // We need this on Nvidia to pre-open /dev/nvidiactl and /dev/nvidia0.
 492     CreateDummyGlContext();
 493   }
 494 }
 495
 496 bool StartSandboxLinux(const gpu::GPUInfo& gpu_info,
 497                        GpuWatchdogThread* watchdog_thread,
 498                        bool should_initialize_gl_context) {
 499   TRACE_EVENT0("gpu", "Initialize sandbox");
 500
 501   bool res = false;
 502
 503   WarmUpSandboxNvidia(gpu_info, should_initialize_gl_context);
 504
 505   if (watchdog_thread) {
 506     // LinuxSandbox needs to be able to ensure that the thread
 507     // has really been stopped.
 508     LinuxSandbox::StopThread(watchdog_thread);
 509   }
 510
 511 #if defined(SANITIZER_COVERAGE)
 512   const std::string sancov_file_name =
 513       "gpu." + base::Uint64ToString(base::RandUint64());
 514   LinuxSandbox* linux_sandbox = LinuxSandbox::GetInstance();
 515   linux_sandbox->sanitizer_args()->coverage_sandboxed = 1;
 516   linux_sandbox->sanitizer_args()->coverage_fd =
 517       __sanitizer_maybe_open_cov_file(sancov_file_name.c_str());
 518   linux_sandbox->sanitizer_args()->coverage_max_block_size = 0;
 519 #endif
 520
 521   // LinuxSandbox::InitializeSandbox() must always be called
 522   // with only one thread.
 523   res = LinuxSandbox::InitializeSandbox();
 524   if (watchdog_thread) {
 525     base::Thread::Options options;
 526     options.timer_slack = base::TIMER_SLACK_MAXIMUM;
 527     watchdog_thread->StartWithOptions(options);
 528   }
 529
 530   return res;
 531 }
 532 #endif  // defined(OS_LINUX)
 533
 534 #if defined(OS_WIN)
 535 bool StartSandboxWindows(const sandbox::SandboxInterfaceInfo* sandbox_info) {
 536   TRACE_EVENT0("gpu", "Lower token");
 537
 538   // For Windows, if the target_services interface is not zero, the process
 539   // is sandboxed and we must call LowerToken() before rendering untrusted
 540   // content.
 541   sandbox::TargetServices* target_services = sandbox_info->target_services;
 542   if (target_services) {
 543     target_services->LowerToken();
 544     return true;
 545   }
 546
 547   return false;
 548 }
 549 #endif  // defined(OS_WIN)
 550
 551 }  // namespace.
 552
 553 }  // namespace content