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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "gpu/ipc/service/gpu_init.h"
#include "base/command_line.h"
#include "base/metrics/histogram_macros.h"
#include "base/strings/string_number_conversions.h"
#include "base/third_party/dynamic_annotations/dynamic_annotations.h"
#include "base/threading/thread_restrictions.h"
#include "base/trace_event/trace_event.h"
#include "gpu/command_buffer/service/gpu_switches.h"
#include "gpu/config/gpu_driver_bug_list.h"
#include "gpu/config/gpu_info_collector.h"
#include "gpu/config/gpu_switches.h"
#include "gpu/config/gpu_util.h"
#include "gpu/ipc/service/gpu_watchdog_thread.h"
#include "gpu/ipc/service/switches.h"
#include "ui/gfx/switches.h"
#include "ui/gl/gl_implementation.h"
#include "ui/gl/gl_switches.h"
#include "ui/gl/init/gl_factory.h"
namespace gpu {
namespace {
void GetGpuInfoFromCommandLine(gpu::GPUInfo& gpu_info,
const base::CommandLine& command_line) {
if (!command_line.HasSwitch(switches::kGpuVendorID) ||
!command_line.HasSwitch(switches::kGpuDeviceID) ||
!command_line.HasSwitch(switches::kGpuDriverVersion))
return;
bool success = base::HexStringToUInt(
command_line.GetSwitchValueASCII(switches::kGpuVendorID),
&gpu_info.gpu.vendor_id);
DCHECK(success);
success = base::HexStringToUInt(
command_line.GetSwitchValueASCII(switches::kGpuDeviceID),
&gpu_info.gpu.device_id);
DCHECK(success);
gpu_info.driver_vendor =
command_line.GetSwitchValueASCII(switches::kGpuDriverVendor);
gpu_info.driver_version =
command_line.GetSwitchValueASCII(switches::kGpuDriverVersion);
gpu_info.driver_date =
command_line.GetSwitchValueASCII(switches::kGpuDriverDate);
gpu::ParseSecondaryGpuDevicesFromCommandLine(command_line, &gpu_info);
// Set active gpu device.
if (command_line.HasSwitch(switches::kGpuActiveVendorID) &&
command_line.HasSwitch(switches::kGpuActiveDeviceID)) {
uint32_t active_vendor_id = 0;
uint32_t active_device_id = 0;
success = base::HexStringToUInt(
command_line.GetSwitchValueASCII(switches::kGpuActiveVendorID),
&active_vendor_id);
DCHECK(success);
success = base::HexStringToUInt(
command_line.GetSwitchValueASCII(switches::kGpuActiveDeviceID),
&active_device_id);
DCHECK(success);
if (gpu_info.gpu.vendor_id == active_vendor_id &&
gpu_info.gpu.device_id == active_device_id) {
gpu_info.gpu.active = true;
} else {
for (size_t i = 0; i < gpu_info.secondary_gpus.size(); ++i) {
if (gpu_info.secondary_gpus[i].vendor_id == active_vendor_id &&
gpu_info.secondary_gpus[i].device_id == active_device_id) {
gpu_info.secondary_gpus[i].active = true;
break;
}
}
}
}
}
#if !defined(OS_MACOSX)
void CollectGraphicsInfo(gpu::GPUInfo& gpu_info) {
TRACE_EVENT0("gpu,startup", "Collect Graphics Info");
gpu::CollectInfoResult result = gpu::CollectContextGraphicsInfo(&gpu_info);
switch (result) {
case gpu::kCollectInfoFatalFailure:
LOG(ERROR) << "gpu::CollectGraphicsInfo failed (fatal).";
break;
case gpu::kCollectInfoNonFatalFailure:
DVLOG(1) << "gpu::CollectGraphicsInfo failed (non-fatal).";
break;
case gpu::kCollectInfoNone:
NOTREACHED();
break;
case gpu::kCollectInfoSuccess:
break;
}
}
#endif // defined(OS_MACOSX)
#if defined(OS_LINUX) && !defined(OS_CHROMEOS)
bool CanAccessNvidiaDeviceFile() {
bool res = true;
base::ThreadRestrictions::AssertIOAllowed();
if (access("/dev/nvidiactl", R_OK) != 0) {
DVLOG(1) << "NVIDIA device file /dev/nvidiactl access denied";
res = false;
}
return res;
}
#endif // defined(OS_LINUX) && !defined(OS_CHROMEOS)
} // namespace
GpuInit::GpuInit() {}
GpuInit::~GpuInit() {}
bool GpuInit::InitializeAndStartSandbox(const base::CommandLine& command_line) {
if (command_line.HasSwitch(switches::kSupportsDualGpus)) {
std::set<int> workarounds;
gpu::GpuDriverBugList::AppendWorkaroundsFromCommandLine(&workarounds,
command_line);
gpu::InitializeDualGpusIfSupported(workarounds);
}
// In addition to disabling the watchdog if the command line switch is
// present, disable the watchdog on valgrind because the code is expected
// to run slowly in that case.
bool enable_watchdog =
!command_line.HasSwitch(switches::kDisableGpuWatchdog) &&
!command_line.HasSwitch(switches::kHeadless) &&
!RunningOnValgrind();
// Disable the watchdog in debug builds because they tend to only be run by
// developers who will not appreciate the watchdog killing the GPU process.
#ifndef NDEBUG
enable_watchdog = false;
#endif
bool delayed_watchdog_enable = false;
#if defined(OS_CHROMEOS)
// Don't start watchdog immediately, to allow developers to switch to VT2 on
// startup.
delayed_watchdog_enable = true;
#endif
// Start the GPU watchdog only after anything that is expected to be time
// consuming has completed, otherwise the process is liable to be aborted.
if (enable_watchdog && !delayed_watchdog_enable)
watchdog_thread_ = gpu::GpuWatchdogThread::Create();
// Get vendor_id, device_id, driver_version from browser process through
// commandline switches.
GetGpuInfoFromCommandLine(gpu_info_, command_line);
#if defined(OS_LINUX) && !defined(OS_CHROMEOS)
if (gpu_info_.gpu.vendor_id == 0x10de && // NVIDIA
gpu_info_.driver_vendor == "NVIDIA" && !CanAccessNvidiaDeviceFile())
return false;
#endif
gpu_info_.in_process_gpu = false;
gpu_info_.passthrough_cmd_decoder =
command_line.HasSwitch(switches::kUsePassthroughCmdDecoder);
sandbox_helper_->PreSandboxStartup();
#if defined(OS_LINUX)
// On Chrome OS ARM Mali, GPU driver userspace creates threads when
// initializing a GL context, so start the sandbox early.
if (command_line.HasSwitch(switches::kGpuSandboxStartEarly))
gpu_info_.sandboxed =
sandbox_helper_->EnsureSandboxInitialized(watchdog_thread_.get());
#endif // defined(OS_LINUX)
base::TimeTicks before_initialize_one_off = base::TimeTicks::Now();
// Load and initialize the GL implementation and locate the GL entry points if
// needed. This initialization may have already happened if running in the
// browser process, for example.
bool gl_initialized = gl::GetGLImplementation() != gl::kGLImplementationNone;
if (!gl_initialized)
gl_initialized = gl::init::InitializeGLOneOff();
if (!gl_initialized) {
VLOG(1) << "gl::init::InitializeGLOneOff failed";
return false;
}
// We need to collect GL strings (VENDOR, RENDERER) for blacklisting purposes.
// However, on Mac we don't actually use them. As documented in
// crbug.com/222934, due to some driver issues, glGetString could take
// multiple seconds to finish, which in turn cause the GPU process to crash.
// By skipping the following code on Mac, we don't really lose anything,
// because the basic GPU information is passed down from the host process.
base::TimeTicks before_collect_context_graphics_info = base::TimeTicks::Now();
#if !defined(OS_MACOSX)
CollectGraphicsInfo(gpu_info_);
if (gpu_info_.context_info_state == gpu::kCollectInfoFatalFailure)
return false;
// Recompute gpu driver bug workarounds.
// This is necessary on systems where vendor_id/device_id aren't available
// (Chrome OS, Android) or where workarounds may be dependent on GL_VENDOR
// and GL_RENDERER strings which are lazily computed (Linux).
if (!command_line.HasSwitch(switches::kDisableGpuDriverBugWorkarounds)) {
// TODO: this can not affect disabled extensions, since they're already
// initialized in the bindings. This should be moved before bindings
// initialization. However, populating GPUInfo fully works only on Android.
// Other platforms would need the bindings to query GL strings.
gpu::ApplyGpuDriverBugWorkarounds(
gpu_info_, const_cast<base::CommandLine*>(&command_line));
}
#endif // !defined(OS_MACOSX)
base::TimeDelta collect_context_time =
base::TimeTicks::Now() - before_collect_context_graphics_info;
UMA_HISTOGRAM_TIMES("GPU.CollectContextGraphicsInfo", collect_context_time);
base::TimeDelta initialize_one_off_time =
base::TimeTicks::Now() - before_initialize_one_off;
UMA_HISTOGRAM_MEDIUM_TIMES("GPU.InitializeOneOffMediumTime",
initialize_one_off_time);
// OSMesa is expected to run very slowly, so disable the watchdog in that
// case.
if (gl::GetGLImplementation() == gl::kGLImplementationOSMesaGL) {
if (watchdog_thread_)
watchdog_thread_->Stop();
watchdog_thread_ = nullptr;
} else if (enable_watchdog && delayed_watchdog_enable) {
watchdog_thread_ = gpu::GpuWatchdogThread::Create();
}
if (!gpu_info_.sandboxed)
gpu_info_.sandboxed =
sandbox_helper_->EnsureSandboxInitialized(watchdog_thread_.get());
return true;
}
} // namespace gpu
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