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gpu_process_host.cc
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// Copyright (c) 2012 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 "content/browser/gpu/gpu_process_host.h"
#include <stddef.h>
#include <algorithm>
#include <list>
#include <utility>
#include "base/base64.h"
#include "base/base_switches.h"
#include "base/bind.h"
#include "base/callback_helpers.h"
#include "base/command_line.h"
#include "base/logging.h"
#include "base/macros.h"
#include "base/memory/ptr_util.h"
#include "base/memory/ref_counted.h"
#include "base/message_loop/message_loop.h"
#include "base/metrics/field_trial.h"
#include "base/metrics/histogram_macros.h"
#include "base/threading/thread.h"
#include "base/threading/thread_task_runner_handle.h"
#include "base/trace_event/trace_event.h"
#include "build/build_config.h"
#include "components/tracing/common/tracing_switches.h"
#include "content/browser/browser_child_process_host_impl.h"
#include "content/browser/browser_main_loop.h"
#include "content/browser/field_trial_recorder.h"
#include "content/browser/gpu/compositor_util.h"
#include "content/browser/gpu/gpu_data_manager_impl.h"
#include "content/browser/gpu/gpu_main_thread_factory.h"
#include "content/browser/gpu/shader_cache_factory.h"
#include "content/browser/service_manager/service_manager_context.h"
#include "content/common/child_process_host_impl.h"
#include "content/common/in_process_child_thread_params.h"
#include "content/common/service_manager/child_connection.h"
#include "content/common/view_messages.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/content_browser_client.h"
#include "content/public/browser/gpu_utils.h"
#include "content/public/common/connection_filter.h"
#include "content/public/common/content_client.h"
#include "content/public/common/content_switches.h"
#include "content/public/common/mojo_channel_switches.h"
#include "content/public/common/result_codes.h"
#include "content/public/common/sandboxed_process_launcher_delegate.h"
#include "content/public/common/service_manager_connection.h"
#include "content/public/common/service_names.mojom.h"
#include "gpu/command_buffer/service/gpu_preferences.h"
#include "gpu/command_buffer/service/gpu_switches.h"
#include "gpu/config/gpu_driver_bug_list.h"
#include "gpu/config/gpu_driver_bug_workaround_type.h"
#include "gpu/ipc/host/shader_disk_cache.h"
#include "gpu/ipc/service/switches.h"
#include "ipc/ipc_channel_handle.h"
#include "ipc/message_filter.h"
#include "media/base/media_switches.h"
#include "media/media_features.h"
#include "mojo/edk/embedder/embedder.h"
#include "services/service_manager/public/cpp/binder_registry.h"
#include "services/service_manager/public/cpp/interface_provider.h"
#include "services/service_manager/runner/common/client_util.h"
#include "services/service_manager/sandbox/sandbox_type.h"
#include "ui/base/ui_base_switches.h"
#include "ui/display/display_switches.h"
#include "ui/gfx/switches.h"
#include "ui/gl/gl_switches.h"
#include "ui/latency/latency_info.h"
#if defined(OS_ANDROID)
#include "base/android/build_info.h"
#include "content/public/browser/android/java_interfaces.h"
#include "media/mojo/interfaces/android_overlay.mojom.h"
#endif
#if defined(OS_WIN)
#include "content/common/sandbox_win.h"
#include "sandbox/win/src/sandbox_policy.h"
#include "ui/gfx/switches.h"
#include "ui/gfx/win/rendering_window_manager.h"
#endif
#if defined(USE_OZONE)
#include "ui/ozone/public/gpu_platform_support_host.h"
#include "ui/ozone/public/ozone_platform.h"
#include "ui/ozone/public/ozone_switches.h"
#endif
#if defined(USE_X11)
#include "ui/gfx/x/x11_switches.h" // nogncheck
#endif
#if defined(OS_MACOSX) || defined(OS_ANDROID)
#include "gpu/ipc/common/gpu_surface_tracker.h"
#endif
namespace content {
bool GpuProcessHost::gpu_enabled_ = true;
bool GpuProcessHost::hardware_gpu_enabled_ = true;
int GpuProcessHost::gpu_crash_count_ = 0;
int GpuProcessHost::gpu_recent_crash_count_ = 0;
bool GpuProcessHost::crashed_before_ = false;
int GpuProcessHost::swiftshader_crash_count_ = 0;
namespace {
// Command-line switches to propagate to the GPU process.
static const char* const kSwitchNames[] = {
switches::kDisableAcceleratedVideoDecode,
switches::kDisableBreakpad,
switches::kDisableGpuRasterization,
switches::kDisableGpuSandbox,
switches::kDisableGpuWatchdog,
switches::kDisableGLExtensions,
switches::kDisableLogging,
switches::kDisableSeccompFilterSandbox,
switches::kDisableShaderNameHashing,
#if BUILDFLAG(ENABLE_WEBRTC)
switches::kDisableWebRtcHWEncoding,
#endif
#if defined(OS_WIN)
switches::kEnableAcceleratedVpxDecode,
#endif
switches::kEnableGpuRasterization,
switches::kEnableHeapProfiling,
switches::kEnableLogging,
switches::kEnableOOPRasterization,
#if defined(OS_CHROMEOS)
switches::kDisableVaapiAcceleratedVideoEncode,
#endif
switches::kGpuStartupDialog,
switches::kGpuSandboxAllowSysVShm,
switches::kGpuSandboxFailuresFatal,
switches::kGpuSandboxStartEarly,
switches::kHeadless,
switches::kLoggingLevel,
switches::kEnableLowEndDeviceMode,
switches::kDisableLowEndDeviceMode,
switches::kNoSandbox,
switches::kTestGLLib,
switches::kTraceConfigFile,
switches::kTraceStartup,
switches::kTraceToConsole,
switches::kUseFakeJpegDecodeAccelerator,
switches::kUseGpuInTests,
switches::kV,
switches::kVModule,
#if defined(OS_MACOSX)
switches::kDisableAVFoundationOverlays,
switches::kDisableRemoteCoreAnimation,
switches::kEnableSandboxLogging,
switches::kShowMacOverlayBorders,
#endif
#if defined(USE_OZONE)
switches::kOzonePlatform,
#endif
#if defined(USE_X11)
switches::kX11Display,
#endif
switches::kGpuTestingGLVendor,
switches::kGpuTestingGLRenderer,
switches::kGpuTestingGLVersion,
switches::kDisableGpuDriverBugWorkarounds,
switches::kUsePassthroughCmdDecoder,
switches::kIgnoreGpuBlacklist,
switches::kForceVideoOverlays,
};
enum GPUProcessLifetimeEvent {
LAUNCHED,
DIED_FIRST_TIME,
DIED_SECOND_TIME,
DIED_THIRD_TIME,
DIED_FOURTH_TIME,
GPU_PROCESS_LIFETIME_EVENT_MAX = 100
};
// Indexed by GpuProcessKind. There is one of each kind maximum. This array may
// only be accessed from the IO thread.
GpuProcessHost* g_gpu_process_hosts[GpuProcessHost::GPU_PROCESS_KIND_COUNT];
void RunCallbackOnIO(GpuProcessHost::GpuProcessKind kind,
bool force_create,
const base::Callback<void(GpuProcessHost*)>& callback) {
GpuProcessHost* host = GpuProcessHost::Get(kind, force_create);
callback.Run(host);
}
#if defined(USE_OZONE)
// The ozone platform use this callback to send IPC messages to the gpu process.
void SendGpuProcessMessage(base::WeakPtr<GpuProcessHost> host,
IPC::Message* message) {
if (host)
host->Send(message);
else
delete message;
}
void RouteMessageToOzoneOnUI(const IPC::Message& message) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
ui::OzonePlatform::GetInstance()
->GetGpuPlatformSupportHost()
->OnMessageReceived(message);
}
#endif // defined(USE_OZONE)
void OnGpuProcessHostDestroyedOnUI(int host_id, const std::string& message) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
GpuDataManagerImpl::GetInstance()->AddLogMessage(
logging::LOG_ERROR, "GpuProcessHostUIShim", message);
#if defined(USE_OZONE)
ui::OzonePlatform::GetInstance()
->GetGpuPlatformSupportHost()
->OnChannelDestroyed(host_id);
#endif
}
// NOTE: changes to this class need to be reviewed by the security team.
class GpuSandboxedProcessLauncherDelegate
: public SandboxedProcessLauncherDelegate {
public:
explicit GpuSandboxedProcessLauncherDelegate(
const base::CommandLine& cmd_line)
#if defined(OS_WIN)
: cmd_line_(cmd_line)
#endif
{
}
~GpuSandboxedProcessLauncherDelegate() override {}
#if defined(OS_WIN)
bool DisableDefaultPolicy() override {
return true;
}
// For the GPU process we gotten as far as USER_LIMITED. The next level
// which is USER_RESTRICTED breaks both the DirectX backend and the OpenGL
// backend. Note that the GPU process is connected to the interactive
// desktop.
bool PreSpawnTarget(sandbox::TargetPolicy* policy) override {
if (cmd_line_.GetSwitchValueASCII(switches::kUseGL) ==
gl::kGLImplementationDesktopName) {
// Open GL path.
policy->SetTokenLevel(sandbox::USER_RESTRICTED_SAME_ACCESS,
sandbox::USER_LIMITED);
SetJobLevel(cmd_line_, sandbox::JOB_UNPROTECTED, 0, policy);
policy->SetDelayedIntegrityLevel(sandbox::INTEGRITY_LEVEL_LOW);
} else {
policy->SetTokenLevel(sandbox::USER_RESTRICTED_SAME_ACCESS,
sandbox::USER_LIMITED);
// UI restrictions break when we access Windows from outside our job.
// However, we don't want a proxy window in this process because it can
// introduce deadlocks where the renderer blocks on the gpu, which in
// turn blocks on the browser UI thread. So, instead we forgo a window
// message pump entirely and just add job restrictions to prevent child
// processes.
SetJobLevel(cmd_line_, sandbox::JOB_LIMITED_USER,
JOB_OBJECT_UILIMIT_SYSTEMPARAMETERS |
JOB_OBJECT_UILIMIT_DESKTOP |
JOB_OBJECT_UILIMIT_EXITWINDOWS |
JOB_OBJECT_UILIMIT_DISPLAYSETTINGS,
policy);
policy->SetIntegrityLevel(sandbox::INTEGRITY_LEVEL_LOW);
}
// Allow the server side of GPU sockets, which are pipes that have
// the "chrome.gpu" namespace and an arbitrary suffix.
sandbox::ResultCode result = policy->AddRule(
sandbox::TargetPolicy::SUBSYS_NAMED_PIPES,
sandbox::TargetPolicy::NAMEDPIPES_ALLOW_ANY,
L"\\\\.\\pipe\\chrome.gpu.*");
if (result != sandbox::SBOX_ALL_OK)
return false;
// Block this DLL even if it is not loaded by the browser process.
policy->AddDllToUnload(L"cmsetac.dll");
if (cmd_line_.HasSwitch(switches::kEnableLogging)) {
base::string16 log_file_path = logging::GetLogFileFullPath();
if (!log_file_path.empty()) {
result = policy->AddRule(sandbox::TargetPolicy::SUBSYS_FILES,
sandbox::TargetPolicy::FILES_ALLOW_ANY,
log_file_path.c_str());
if (result != sandbox::SBOX_ALL_OK)
return false;
}
}
return true;
}
#endif // OS_WIN
service_manager::SandboxType GetSandboxType() override {
#if defined(OS_WIN)
if (cmd_line_.HasSwitch(switches::kDisableGpuSandbox)) {
DVLOG(1) << "GPU sandbox is disabled";
return service_manager::SANDBOX_TYPE_NO_SANDBOX;
}
#endif
return service_manager::SANDBOX_TYPE_GPU;
}
private:
#if defined(OS_WIN)
base::CommandLine cmd_line_;
#endif // OS_WIN
};
#if defined(OS_ANDROID)
template <typename Interface>
void BindJavaInterface(mojo::InterfaceRequest<Interface> request) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
content::GetGlobalJavaInterfaces()->GetInterface(std::move(request));
}
#endif // defined(OS_ANDROID)
} // anonymous namespace
class GpuProcessHost::ConnectionFilterImpl : public ConnectionFilter {
public:
ConnectionFilterImpl() {
auto task_runner = BrowserThread::GetTaskRunnerForThread(BrowserThread::UI);
registry_.AddInterface(base::Bind(&FieldTrialRecorder::Create),
task_runner);
#if defined(OS_ANDROID)
registry_.AddInterface(
base::Bind(&BindJavaInterface<media::mojom::AndroidOverlayProvider>),
task_runner);
#endif
}
private:
// ConnectionFilter:
void OnBindInterface(const service_manager::BindSourceInfo& source_info,
const std::string& interface_name,
mojo::ScopedMessagePipeHandle* interface_pipe,
service_manager::Connector* connector) override {
if (!registry_.TryBindInterface(interface_name, interface_pipe)) {
GetContentClient()->browser()->BindInterfaceRequest(
source_info, interface_name, interface_pipe);
}
}
service_manager::BinderRegistry registry_;
DISALLOW_COPY_AND_ASSIGN(ConnectionFilterImpl);
};
// static
bool GpuProcessHost::ValidateHost(GpuProcessHost* host) {
// The Gpu process is invalid if it's not using SwiftShader, the card is
// blacklisted, and we can kill it and start over.
if (base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kSingleProcess) ||
base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kInProcessGPU) ||
(host->valid_ &&
(host->swiftshader_rendering_ ||
!GpuDataManagerImpl::GetInstance()->ShouldUseSwiftShader()))) {
return true;
}
host->ForceShutdown();
return false;
}
// static
GpuProcessHost* GpuProcessHost::Get(GpuProcessKind kind, bool force_create) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
// Don't grant further access to GPU if it is not allowed.
GpuDataManagerImpl* gpu_data_manager = GpuDataManagerImpl::GetInstance();
DCHECK(gpu_data_manager);
if (!gpu_data_manager->GpuAccessAllowed(NULL))
return NULL;
if (g_gpu_process_hosts[kind] && ValidateHost(g_gpu_process_hosts[kind]))
return g_gpu_process_hosts[kind];
if (!force_create)
return nullptr;
// Do not create a new process if browser is shutting down.
if (BrowserMainRunner::ExitedMainMessageLoop())
return nullptr;
static int last_host_id = 0;
int host_id;
host_id = ++last_host_id;
GpuProcessHost* host = new GpuProcessHost(host_id, kind);
if (host->Init())
return host;
// TODO(sievers): Revisit this behavior. It's not really a crash, but we also
// want the fallback-to-sw behavior if we cannot initialize the GPU.
host->RecordProcessCrash();
delete host;
return NULL;
}
// static
void GpuProcessHost::GetHasGpuProcess(
const base::Callback<void(bool)>& callback) {
if (!BrowserThread::CurrentlyOn(BrowserThread::IO)) {
BrowserThread::PostTask(
BrowserThread::IO, FROM_HERE,
base::BindOnce(&GpuProcessHost::GetHasGpuProcess, callback));
return;
}
bool has_gpu = false;
for (size_t i = 0; i < arraysize(g_gpu_process_hosts); ++i) {
GpuProcessHost* host = g_gpu_process_hosts[i];
if (host && ValidateHost(host)) {
has_gpu = true;
break;
}
}
BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
base::BindOnce(callback, has_gpu));
}
// static
void GpuProcessHost::CallOnIO(
GpuProcessKind kind,
bool force_create,
const base::Callback<void(GpuProcessHost*)>& callback) {
#if !defined(OS_WIN)
DCHECK_NE(kind, GpuProcessHost::GPU_PROCESS_KIND_UNSANDBOXED);
#endif
BrowserThread::PostTask(
BrowserThread::IO, FROM_HERE,
base::BindOnce(&RunCallbackOnIO, kind, force_create, callback));
}
void GpuProcessHost::BindInterface(
const std::string& interface_name,
mojo::ScopedMessagePipeHandle interface_pipe) {
process_->child_connection()->BindInterface(interface_name,
std::move(interface_pipe));
}
// static
GpuProcessHost* GpuProcessHost::FromID(int host_id) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
for (int i = 0; i < GPU_PROCESS_KIND_COUNT; ++i) {
GpuProcessHost* host = g_gpu_process_hosts[i];
if (host && host->host_id_ == host_id && ValidateHost(host))
return host;
}
return NULL;
}
GpuProcessHost::GpuProcessHost(int host_id, GpuProcessKind kind)
: host_id_(host_id),
valid_(true),
in_process_(false),
swiftshader_rendering_(false),
kind_(kind),
process_launched_(false),
status_(UNKNOWN),
gpu_host_binding_(this),
weak_ptr_factory_(this) {
if (base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kSingleProcess) ||
base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kInProcessGPU)) {
in_process_ = true;
}
// If the 'single GPU process' policy ever changes, we still want to maintain
// it for 'gpu thread' mode and only create one instance of host and thread.
DCHECK(!in_process_ || g_gpu_process_hosts[kind] == NULL);
g_gpu_process_hosts[kind] = this;
process_.reset(new BrowserChildProcessHostImpl(
PROCESS_TYPE_GPU, this, mojom::kGpuServiceName));
}
GpuProcessHost::~GpuProcessHost() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
SendOutstandingReplies();
if (status_ == UNKNOWN) {
RunRequestGPUInfoCallbacks(gpu::GPUInfo());
} else {
DCHECK(request_gpu_info_callbacks_.empty());
}
// In case we never started, clean up.
while (!queued_messages_.empty()) {
delete queued_messages_.front();
queued_messages_.pop();
}
// This is only called on the IO thread so no race against the constructor
// for another GpuProcessHost.
if (g_gpu_process_hosts[kind_] == this)
g_gpu_process_hosts[kind_] = NULL;
#if defined(OS_MACOSX) || defined(OS_ANDROID)
UMA_HISTOGRAM_COUNTS_100("GPU.AtExitSurfaceCount",
gpu::GpuSurfaceTracker::Get()->GetSurfaceCount());
#endif
std::string message;
bool block_offscreen_contexts = true;
if (!in_process_) {
int exit_code;
base::TerminationStatus status = process_->GetTerminationStatus(
false /* known_dead */, &exit_code);
UMA_HISTOGRAM_ENUMERATION("GPU.GPUProcessTerminationStatus",
status,
base::TERMINATION_STATUS_MAX_ENUM);
if (status == base::TERMINATION_STATUS_NORMAL_TERMINATION ||
status == base::TERMINATION_STATUS_ABNORMAL_TERMINATION ||
status == base::TERMINATION_STATUS_PROCESS_CRASHED) {
// Windows always returns PROCESS_CRASHED on abnormal termination, as it
// doesn't have a way to distinguish the two.
UMA_HISTOGRAM_SPARSE_SLOWLY("GPU.GPUProcessExitCode",
std::max(0, std::min(100, exit_code)));
}
switch (status) {
case base::TERMINATION_STATUS_NORMAL_TERMINATION:
// Don't block offscreen contexts (and force page reload for webgl)
// if this was an intentional shutdown or the OOM killer on Android
// killed us while Chrome was in the background.
// TODO(crbug.com/598400): Restrict this to Android for now, since other
// platforms might fall through here for the 'exit_on_context_lost' workaround.
#if defined(OS_ANDROID)
block_offscreen_contexts = false;
#endif
message = "The GPU process exited normally. Everything is okay.";
break;
case base::TERMINATION_STATUS_ABNORMAL_TERMINATION:
message = base::StringPrintf(
"The GPU process exited with code %d.",
exit_code);
break;
case base::TERMINATION_STATUS_PROCESS_WAS_KILLED:
message = "You killed the GPU process! Why?";
break;
#if defined(OS_CHROMEOS)
case base::TERMINATION_STATUS_PROCESS_WAS_KILLED_BY_OOM:
message = "The GUP process was killed due to out of memory.";
break;
#endif
case base::TERMINATION_STATUS_PROCESS_CRASHED:
message = "The GPU process crashed!";
break;
case base::TERMINATION_STATUS_LAUNCH_FAILED:
message = "The GPU process failed to start!";
break;
default:
break;
}
}
// If there are any remaining offscreen contexts at the point the
// GPU process exits, assume something went wrong, and block their
// URLs from accessing client 3D APIs without prompting.
if (block_offscreen_contexts)
BlockLiveOffscreenContexts();
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE,
base::BindOnce(&OnGpuProcessHostDestroyedOnUI, host_id_, message));
}
bool GpuProcessHost::Init() {
init_start_time_ = base::TimeTicks::Now();
TRACE_EVENT_INSTANT0("gpu", "LaunchGpuProcess", TRACE_EVENT_SCOPE_THREAD);
// May be null during test execution.
if (ServiceManagerConnection::GetForProcess()) {
ServiceManagerConnection::GetForProcess()->AddConnectionFilter(
base::MakeUnique<ConnectionFilterImpl>());
}
process_->GetHost()->CreateChannelMojo();
gpu::GpuPreferences gpu_preferences = GetGpuPreferencesFromCommandLine();
GpuDataManagerImpl::GetInstance()->UpdateGpuPreferences(&gpu_preferences);
if (in_process_) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
DCHECK(GetGpuMainThreadFactory());
in_process_gpu_thread_.reset(
GetGpuMainThreadFactory()(InProcessChildThreadParams(
base::ThreadTaskRunnerHandle::Get(),
process_->GetInProcessBrokerClientInvitation(),
process_->child_connection()->service_token())));
base::Thread::Options options;
#if defined(OS_WIN)
// WGL needs to create its own window and pump messages on it.
options.message_loop_type = base::MessageLoop::TYPE_UI;
#endif
#if defined(OS_ANDROID) || defined(OS_CHROMEOS)
options.priority = base::ThreadPriority::DISPLAY;
#endif
in_process_gpu_thread_->StartWithOptions(options);
OnProcessLaunched(); // Fake a callback that the process is ready.
} else if (!LaunchGpuProcess()) {
return false;
}
process_->child_channel()
->GetAssociatedInterfaceSupport()
->GetRemoteAssociatedInterface(&gpu_main_ptr_);
ui::mojom::GpuHostPtr host_proxy;
gpu_host_binding_.Bind(mojo::MakeRequest(&host_proxy));
gpu_main_ptr_->CreateGpuService(mojo::MakeRequest(&gpu_service_ptr_),
std::move(host_proxy), gpu_preferences,
activity_flags_.CloneHandle());
#if defined(USE_OZONE)
// Ozone needs to send the primary DRM device to GPU process as early as
// possible to ensure the latter always has a valid device. crbug.com/608839
ui::OzonePlatform::GetInstance()
->GetGpuPlatformSupportHost()
->OnGpuProcessLaunched(
host_id_, BrowserThread::GetTaskRunnerForThread(BrowserThread::UI),
base::ThreadTaskRunnerHandle::Get(),
base::Bind(&SendGpuProcessMessage, weak_ptr_factory_.GetWeakPtr()));
#endif
return true;
}
bool GpuProcessHost::Send(IPC::Message* msg) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
if (process_->GetHost()->IsChannelOpening()) {
queued_messages_.push(msg);
return true;
}
bool result = process_->Send(msg);
if (!result) {
// Channel is hosed, but we may not get destroyed for a while. Send
// outstanding channel creation failures now so that the caller can restart
// with a new process/channel without waiting.
SendOutstandingReplies();
}
return result;
}
bool GpuProcessHost::OnMessageReceived(const IPC::Message& message) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
#if defined(USE_OZONE)
BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
base::BindOnce(&RouteMessageToOzoneOnUI, message));
#endif
return true;
}
void GpuProcessHost::OnChannelConnected(int32_t peer_pid) {
TRACE_EVENT0("gpu", "GpuProcessHost::OnChannelConnected");
while (!queued_messages_.empty()) {
Send(queued_messages_.front());
queued_messages_.pop();
}
}
void GpuProcessHost::EstablishGpuChannel(
int client_id,
uint64_t client_tracing_id,
bool preempts,
bool allow_view_command_buffers,
bool allow_real_time_streams,
const EstablishChannelCallback& callback) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
TRACE_EVENT0("gpu", "GpuProcessHost::EstablishGpuChannel");
// If GPU features are already blacklisted, no need to establish the channel.
if (!GpuDataManagerImpl::GetInstance()->GpuAccessAllowed(NULL)) {
DVLOG(1) << "GPU blacklisted, refusing to open a GPU channel.";
callback.Run(IPC::ChannelHandle(), gpu::GPUInfo(), gpu::GpuFeatureInfo(),
EstablishChannelStatus::GPU_ACCESS_DENIED);
return;
}
DCHECK_EQ(preempts, allow_view_command_buffers);
DCHECK_EQ(preempts, allow_real_time_streams);
bool is_gpu_host = preempts;
channel_requests_.push(callback);
gpu_service_ptr_->EstablishGpuChannel(
client_id, client_tracing_id, is_gpu_host,
base::BindOnce(&GpuProcessHost::OnChannelEstablished,
weak_ptr_factory_.GetWeakPtr(), client_id, callback));
if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kDisableGpuShaderDiskCache)) {
CreateChannelCache(client_id);
}
}
void GpuProcessHost::CreateGpuMemoryBuffer(
gfx::GpuMemoryBufferId id,
const gfx::Size& size,
gfx::BufferFormat format,
gfx::BufferUsage usage,
int client_id,
gpu::SurfaceHandle surface_handle,
const CreateGpuMemoryBufferCallback& callback) {
TRACE_EVENT0("gpu", "GpuProcessHost::CreateGpuMemoryBuffer");
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
create_gpu_memory_buffer_requests_.push(callback);
gpu_service_ptr_->CreateGpuMemoryBuffer(
id, size, format, usage, client_id, surface_handle,
base::BindOnce(&GpuProcessHost::OnGpuMemoryBufferCreated,
weak_ptr_factory_.GetWeakPtr()));
}
void GpuProcessHost::DestroyGpuMemoryBuffer(gfx::GpuMemoryBufferId id,
int client_id,
const gpu::SyncToken& sync_token) {
TRACE_EVENT0("gpu", "GpuProcessHost::DestroyGpuMemoryBuffer");
gpu_service_ptr_->DestroyGpuMemoryBuffer(id, client_id, sync_token);
}
void GpuProcessHost::RequestGPUInfo(RequestGPUInfoCallback request_cb) {
if (status_ == SUCCESS || status_ == FAILURE) {
std::move(request_cb).Run(GpuDataManagerImpl::GetInstance()->GetGPUInfo());
return;
}
request_gpu_info_callbacks_.push_back(std::move(request_cb));
}
#if defined(OS_ANDROID)
void GpuProcessHost::SendDestroyingVideoSurface(int surface_id,
const base::Closure& done_cb) {
TRACE_EVENT0("gpu", "GpuProcessHost::SendDestroyingVideoSurface");
DCHECK(send_destroying_video_surface_done_cb_.is_null());
DCHECK(!done_cb.is_null());
send_destroying_video_surface_done_cb_ = done_cb;
gpu_service_ptr_->DestroyingVideoSurface(
surface_id, base::Bind(&GpuProcessHost::OnDestroyingVideoSurfaceAck,
weak_ptr_factory_.GetWeakPtr()));
}
#endif
void GpuProcessHost::OnChannelEstablished(
int client_id,
const EstablishChannelCallback& callback,
mojo::ScopedMessagePipeHandle channel_handle) {
TRACE_EVENT0("gpu", "GpuProcessHost::OnChannelEstablished");
DCHECK(!channel_requests_.empty());
DCHECK(channel_requests_.front().Equals(callback));
channel_requests_.pop();
auto* gpu_data_manager = GpuDataManagerImpl::GetInstance();
// Currently if any of the GPU features are blacklisted, we don't establish a
// GPU channel.
if (channel_handle.is_valid() &&
!gpu_data_manager->GpuAccessAllowed(nullptr)) {
gpu_service_ptr_->CloseChannel(client_id);
callback.Run(IPC::ChannelHandle(), gpu::GPUInfo(), gpu::GpuFeatureInfo(),
EstablishChannelStatus::GPU_ACCESS_DENIED);
RecordLogMessage(logging::LOG_WARNING, "WARNING",
"Hardware acceleration is unavailable.");
return;
}
callback.Run(IPC::ChannelHandle(channel_handle.release()),
gpu_data_manager->GetGPUInfo(),
gpu_data_manager->GetGpuFeatureInfo(),
EstablishChannelStatus::SUCCESS);
}
void GpuProcessHost::OnGpuMemoryBufferCreated(
const gfx::GpuMemoryBufferHandle& handle) {
TRACE_EVENT0("gpu", "GpuProcessHost::OnGpuMemoryBufferCreated");
DCHECK(!create_gpu_memory_buffer_requests_.empty());
auto callback = create_gpu_memory_buffer_requests_.front();
create_gpu_memory_buffer_requests_.pop();
callback.Run(handle, BufferCreationStatus::SUCCESS);
}
#if defined(OS_ANDROID)
void GpuProcessHost::OnDestroyingVideoSurfaceAck() {
TRACE_EVENT0("gpu", "GpuProcessHost::OnDestroyingVideoSurfaceAck");
if (!send_destroying_video_surface_done_cb_.is_null())
base::ResetAndReturn(&send_destroying_video_surface_done_cb_).Run();
}
#endif
void GpuProcessHost::OnProcessLaunched() {
UMA_HISTOGRAM_TIMES("GPU.GPUProcessLaunchTime",
base::TimeTicks::Now() - init_start_time_);
}
void GpuProcessHost::OnProcessLaunchFailed(int error_code) {
// TODO(wfh): do something more useful with this error code.
RecordProcessCrash();
}
void GpuProcessHost::OnProcessCrashed(int exit_code) {
// If the GPU process crashed while compiling a shader, we may have invalid
// cached binaries. Completely clear the shader cache to force shader binaries
// to be re-created.
if (activity_flags_.IsFlagSet(
gpu::ActivityFlagsBase::FLAG_LOADING_PROGRAM_BINARY)) {
for (auto cache_key : client_id_to_shader_cache_) {
// This call will temporarily extend the lifetime of the cache (kept
// alive in the factory), and may drop loads of cached shader binaries if
// it takes a while to complete. As we are intentionally dropping all
// binaries, this behavior is fine.
GetShaderCacheFactorySingleton()->ClearByClientId(
cache_key.first, base::Time(), base::Time::Max(), base::Bind([] {}));
}
}
SendOutstandingReplies();
RecordProcessCrash();
GpuDataManagerImpl::GetInstance()->ProcessCrashed(
process_->GetTerminationStatus(true /* known_dead */, NULL));
}
void GpuProcessHost::DidInitialize(
const gpu::GPUInfo& gpu_info,
const gpu::GpuFeatureInfo& gpu_feature_info) {
UMA_HISTOGRAM_BOOLEAN("GPU.GPUProcessInitialized", true);
status_ = SUCCESS;
// Set GPU driver bug workaround flags that are checked on the browser side.
if (gpu_feature_info.IsWorkaroundEnabled(gpu::WAKE_UP_GPU_BEFORE_DRAWING)) {
wake_up_gpu_before_drawing_ = true;
}
if (gpu_feature_info.IsWorkaroundEnabled(
gpu::DONT_DISABLE_WEBGL_WHEN_COMPOSITOR_CONTEXT_LOST)) {
dont_disable_webgl_when_compositor_context_lost_ = true;
}
GpuDataManagerImpl* gpu_data_manager = GpuDataManagerImpl::GetInstance();
if (!gpu_data_manager->ShouldUseSwiftShader()) {
gpu_data_manager->UpdateGpuInfo(gpu_info);
gpu_data_manager->UpdateGpuFeatureInfo(gpu_feature_info);
}
RunRequestGPUInfoCallbacks(gpu_data_manager->GetGPUInfo());
}
void GpuProcessHost::DidFailInitialize() {
UMA_HISTOGRAM_BOOLEAN("GPU.GPUProcessInitialized", false);
status_ = FAILURE;
GpuDataManagerImpl* gpu_data_manager = GpuDataManagerImpl::GetInstance();
gpu_data_manager->OnGpuProcessInitFailure();
RunRequestGPUInfoCallbacks(gpu_data_manager->GetGPUInfo());
}
void GpuProcessHost::DidCreateOffscreenContext(const GURL& url) {
urls_with_live_offscreen_contexts_.insert(url);
}
void GpuProcessHost::DidDestroyOffscreenContext(const GURL& url) {
urls_with_live_offscreen_contexts_.erase(url);
}
void GpuProcessHost::DidDestroyChannel(int32_t client_id) {
TRACE_EVENT0("gpu", "GpuProcessHost::DidDestroyChannel");
client_id_to_shader_cache_.erase(client_id);
}
void GpuProcessHost::DidLoseContext(bool offscreen,
gpu::error::ContextLostReason reason,
const GURL& active_url) {
// TODO(kbr): would be nice to see the "offscreen" flag too.
TRACE_EVENT2("gpu", "GpuProcessHost::DidLoseContext", "reason", reason, "url",
active_url.possibly_invalid_spec());
if (!offscreen || active_url.is_empty()) {
// Assume that the loss of the compositor's or accelerated canvas'
// context is a serious event and blame the loss on all live
// offscreen contexts. This more robustly handles situations where
// the GPU process may not actually detect the context loss in the
// offscreen context. However, situations have been seen where the
// compositor's context can be lost due to driver bugs (as of this
// writing, on Android), so allow that possibility.
if (!dont_disable_webgl_when_compositor_context_lost_) {
BlockLiveOffscreenContexts();
}
return;
}
GpuDataManagerImpl::DomainGuilt guilt =
GpuDataManagerImpl::DOMAIN_GUILT_UNKNOWN;
switch (reason) {
case gpu::error::kGuilty:
guilt = GpuDataManagerImpl::DOMAIN_GUILT_KNOWN;
break;
// Treat most other error codes as though they had unknown provenance.
// In practice this doesn't affect the user experience. A lost context
// of either known or unknown guilt still causes user-level 3D APIs
// (e.g. WebGL) to be blocked on that domain until the user manually
// reenables them.
case gpu::error::kUnknown:
case gpu::error::kOutOfMemory:
case gpu::error::kMakeCurrentFailed:
case gpu::error::kGpuChannelLost:
case gpu::error::kInvalidGpuMessage:
break;
case gpu::error::kInnocent:
return;
}
GpuDataManagerImpl::GetInstance()->BlockDomainFrom3DAPIs(active_url, guilt);
}
void GpuProcessHost::SetChildSurface(gpu::SurfaceHandle parent_handle,
gpu::SurfaceHandle window_handle) {
#if defined(OS_WIN)
constexpr char kBadMessageError[] = "Bad parenting request from gpu process.";
if (!in_process_) {
DCHECK(process_);
{
DWORD process_id = 0;
DWORD thread_id = GetWindowThreadProcessId(parent_handle, &process_id);
if (!thread_id || process_id != ::GetCurrentProcessId()) {
process_->TerminateOnBadMessageReceived(kBadMessageError);
return;
}
}
{
DWORD process_id = 0;
DWORD thread_id = GetWindowThreadProcessId(window_handle, &process_id);
if (!thread_id || process_id != process_->GetProcess().Pid()) {
process_->TerminateOnBadMessageReceived(kBadMessageError);
return;
}
}
}
if (!gfx::RenderingWindowManager::GetInstance()->RegisterChild(
parent_handle, window_handle)) {
process_->TerminateOnBadMessageReceived(kBadMessageError);
}
#endif
}
void GpuProcessHost::StoreShaderToDisk(int32_t client_id,
const std::string& key,
const std::string& shader) {
TRACE_EVENT0("gpu", "GpuProcessHost::StoreShaderToDisk");
ClientIdToShaderCacheMap::iterator iter =
client_id_to_shader_cache_.find(client_id);
// If the cache doesn't exist then this is an off the record profile.
if (iter == client_id_to_shader_cache_.end())
return;
iter->second->Cache(GetShaderPrefixKey() + ":" + key, shader);
}
void GpuProcessHost::RecordLogMessage(int32_t severity,
const std::string& header,
const std::string& message) {
GpuDataManagerImpl::GetInstance()->AddLogMessage(severity, header, message);
}
GpuProcessHost::GpuProcessKind GpuProcessHost::kind() {
return kind_;
}
void GpuProcessHost::ForceShutdown() {
// This is only called on the IO thread so no race against the constructor
// for another GpuProcessHost.
if (g_gpu_process_hosts[kind_] == this)
g_gpu_process_hosts[kind_] = NULL;
process_->ForceShutdown();
}
bool GpuProcessHost::LaunchGpuProcess() {
const base::CommandLine& browser_command_line =
*base::CommandLine::ForCurrentProcess();
base::CommandLine::StringType gpu_launcher =
browser_command_line.GetSwitchValueNative(switches::kGpuLauncher);