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| 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 #ifndef CONTENT_COMMON_GPU_GPU_CHANNEL_H_ | |
| 6 #define CONTENT_COMMON_GPU_GPU_CHANNEL_H_ | |
| 7 | |
| 8 #include <stddef.h> | |
| 9 #include <stdint.h> | |
| 10 | |
| 11 #include <string> | |
| 12 | |
| 13 #include "base/containers/hash_tables.h" | |
| 14 #include "base/containers/scoped_ptr_hash_map.h" | |
| 15 #include "base/macros.h" | |
| 16 #include "base/memory/ref_counted.h" | |
| 17 #include "base/memory/scoped_ptr.h" | |
| 18 #include "base/memory/weak_ptr.h" | |
| 19 #include "base/process/process.h" | |
| 20 #include "base/threading/thread_checker.h" | |
| 21 #include "base/trace_event/memory_dump_provider.h" | |
| 22 #include "build/build_config.h" | |
| 23 #include "content/common/content_export.h" | |
| 24 #include "content/common/gpu/gpu_command_buffer_stub.h" | |
| 25 #include "content/common/gpu/gpu_memory_manager.h" | |
| 26 #include "gpu/command_buffer/service/valuebuffer_manager.h" | |
| 27 #include "gpu/ipc/common/gpu_stream_constants.h" | |
| 28 #include "ipc/ipc_sync_channel.h" | |
| 29 #include "ipc/message_router.h" | |
| 30 #include "ui/gfx/geometry/size.h" | |
| 31 #include "ui/gfx/native_widget_types.h" | |
| 32 #include "ui/gl/gl_share_group.h" | |
| 33 #include "ui/gl/gpu_preference.h" | |
| 34 | |
| 35 struct GPUCreateCommandBufferConfig; | |
| 36 | |
| 37 namespace base { | |
| 38 class WaitableEvent; | |
| 39 } | |
| 40 | |
| 41 namespace gpu { | |
| 42 class PreemptionFlag; | |
| 43 class SyncPointOrderData; | |
| 44 class SyncPointManager; | |
| 45 union ValueState; | |
| 46 class ValueStateMap; | |
| 47 namespace gles2 { | |
| 48 class SubscriptionRefSet; | |
| 49 } | |
| 50 } | |
| 51 | |
| 52 namespace IPC { | |
| 53 class MessageFilter; | |
| 54 } | |
| 55 | |
| 56 namespace content { | |
| 57 class GpuChannelManager; | |
| 58 class GpuChannelMessageFilter; | |
| 59 class GpuChannelMessageQueue; | |
| 60 class GpuWatchdog; | |
| 61 | |
| 62 // Encapsulates an IPC channel between the GPU process and one renderer | |
| 63 // process. On the renderer side there's a corresponding GpuChannelHost. | |
| 64 class CONTENT_EXPORT GpuChannel | |
| 65 : public IPC::Listener, | |
| 66 public IPC::Sender, | |
| 67 public gpu::gles2::SubscriptionRefSet::Observer { | |
| 68 public: | |
| 69 // Takes ownership of the renderer process handle. | |
| 70 GpuChannel(GpuChannelManager* gpu_channel_manager, | |
| 71 gpu::SyncPointManager* sync_point_manager, | |
| 72 GpuWatchdog* watchdog, | |
| 73 gfx::GLShareGroup* share_group, | |
| 74 gpu::gles2::MailboxManager* mailbox_manager, | |
| 75 gpu::PreemptionFlag* preempting_flag, | |
| 76 gpu::PreemptionFlag* preempted_flag, | |
| 77 base::SingleThreadTaskRunner* task_runner, | |
| 78 base::SingleThreadTaskRunner* io_task_runner, | |
| 79 int32_t client_id, | |
| 80 uint64_t client_tracing_id, | |
| 81 bool allow_view_command_buffers, | |
| 82 bool allow_real_time_streams); | |
| 83 ~GpuChannel() override; | |
| 84 | |
| 85 // Initializes the IPC channel. Caller takes ownership of the client FD in | |
| 86 // the returned handle and is responsible for closing it. | |
| 87 virtual IPC::ChannelHandle Init(base::WaitableEvent* shutdown_event); | |
| 88 | |
| 89 void SetUnhandledMessageListener(IPC::Listener* listener); | |
| 90 | |
| 91 // Get the GpuChannelManager that owns this channel. | |
| 92 GpuChannelManager* gpu_channel_manager() const { | |
| 93 return gpu_channel_manager_; | |
| 94 } | |
| 95 | |
| 96 const std::string& channel_id() const { return channel_id_; } | |
| 97 | |
| 98 virtual base::ProcessId GetClientPID() const; | |
| 99 | |
| 100 int client_id() const { return client_id_; } | |
| 101 | |
| 102 uint64_t client_tracing_id() const { return client_tracing_id_; } | |
| 103 | |
| 104 base::WeakPtr<GpuChannel> AsWeakPtr(); | |
| 105 | |
| 106 scoped_refptr<base::SingleThreadTaskRunner> io_task_runner() const { | |
| 107 return io_task_runner_; | |
| 108 } | |
| 109 | |
| 110 // IPC::Listener implementation: | |
| 111 bool OnMessageReceived(const IPC::Message& msg) override; | |
| 112 void OnChannelError() override; | |
| 113 | |
| 114 // IPC::Sender implementation: | |
| 115 bool Send(IPC::Message* msg) override; | |
| 116 | |
| 117 // SubscriptionRefSet::Observer implementation | |
| 118 void OnAddSubscription(unsigned int target) override; | |
| 119 void OnRemoveSubscription(unsigned int target) override; | |
| 120 | |
| 121 void OnStreamRescheduled(int32_t stream_id, bool scheduled); | |
| 122 | |
| 123 gfx::GLShareGroup* share_group() const { return share_group_.get(); } | |
| 124 | |
| 125 GpuCommandBufferStub* LookupCommandBuffer(int32_t route_id); | |
| 126 | |
| 127 void LoseAllContexts(); | |
| 128 void MarkAllContextsLost(); | |
| 129 | |
| 130 // Called to add a listener for a particular message routing ID. | |
| 131 // Returns true if succeeded. | |
| 132 bool AddRoute(int32_t route_id, int32_t stream_id, IPC::Listener* listener); | |
| 133 | |
| 134 // Called to remove a listener for a particular message routing ID. | |
| 135 void RemoveRoute(int32_t route_id); | |
| 136 | |
| 137 void CacheShader(const std::string& key, const std::string& shader); | |
| 138 | |
| 139 void AddFilter(IPC::MessageFilter* filter); | |
| 140 void RemoveFilter(IPC::MessageFilter* filter); | |
| 141 | |
| 142 uint64_t GetMemoryUsage(); | |
| 143 | |
| 144 scoped_refptr<gl::GLImage> CreateImageForGpuMemoryBuffer( | |
| 145 const gfx::GpuMemoryBufferHandle& handle, | |
| 146 const gfx::Size& size, | |
| 147 gfx::BufferFormat format, | |
| 148 uint32_t internalformat); | |
| 149 | |
| 150 void HandleUpdateValueState(unsigned int target, | |
| 151 const gpu::ValueState& state); | |
| 152 | |
| 153 GpuChannelMessageFilter* filter() const { return filter_.get(); } | |
| 154 | |
| 155 // Visible for testing. | |
| 156 const gpu::ValueStateMap* pending_valuebuffer_state() const { | |
| 157 return pending_valuebuffer_state_.get(); | |
| 158 } | |
| 159 | |
| 160 // Returns the global order number for the last processed IPC message. | |
| 161 uint32_t GetProcessedOrderNum() const; | |
| 162 | |
| 163 // Returns the global order number for the last unprocessed IPC message. | |
| 164 uint32_t GetUnprocessedOrderNum() const; | |
| 165 | |
| 166 // Returns the shared sync point global order data for the stream. | |
| 167 scoped_refptr<gpu::SyncPointOrderData> GetSyncPointOrderData( | |
| 168 int32_t stream_id); | |
| 169 | |
| 170 void PostHandleOutOfOrderMessage(const IPC::Message& message); | |
| 171 void PostHandleMessage(const scoped_refptr<GpuChannelMessageQueue>& queue); | |
| 172 | |
| 173 // Synchronously handle the message to make testing convenient. | |
| 174 void HandleMessageForTesting(const IPC::Message& msg); | |
| 175 | |
| 176 #if defined(OS_ANDROID) | |
| 177 const GpuCommandBufferStub* GetOneStub() const; | |
| 178 #endif | |
| 179 | |
| 180 protected: | |
| 181 // The message filter on the io thread. | |
| 182 scoped_refptr<GpuChannelMessageFilter> filter_; | |
| 183 | |
| 184 // Map of routing id to command buffer stub. | |
| 185 base::ScopedPtrHashMap<int32_t, scoped_ptr<GpuCommandBufferStub>> stubs_; | |
| 186 | |
| 187 private: | |
| 188 bool OnControlMessageReceived(const IPC::Message& msg); | |
| 189 | |
| 190 void HandleMessage(const scoped_refptr<GpuChannelMessageQueue>& queue); | |
| 191 | |
| 192 // Some messages such as WaitForGetOffsetInRange and WaitForTokenInRange are | |
| 193 // processed as soon as possible because the client is blocked until they | |
| 194 // are completed. | |
| 195 void HandleOutOfOrderMessage(const IPC::Message& msg); | |
| 196 | |
| 197 void HandleMessageHelper(const IPC::Message& msg); | |
| 198 | |
| 199 scoped_refptr<GpuChannelMessageQueue> CreateStream( | |
| 200 int32_t stream_id, | |
| 201 gpu::GpuStreamPriority stream_priority); | |
| 202 | |
| 203 scoped_refptr<GpuChannelMessageQueue> LookupStream(int32_t stream_id); | |
| 204 | |
| 205 void DestroyStreamIfNecessary( | |
| 206 const scoped_refptr<GpuChannelMessageQueue>& queue); | |
| 207 | |
| 208 void AddRouteToStream(int32_t route_id, int32_t stream_id); | |
| 209 void RemoveRouteFromStream(int32_t route_id); | |
| 210 | |
| 211 // Message handlers for control messages. | |
| 212 void OnCreateCommandBuffer(gpu::SurfaceHandle surface_handle, | |
| 213 const gfx::Size& size, | |
| 214 const GPUCreateCommandBufferConfig& init_params, | |
| 215 int32_t route_id, | |
| 216 bool* succeeded); | |
| 217 void OnDestroyCommandBuffer(int32_t route_id); | |
| 218 void OnGetDriverBugWorkArounds( | |
| 219 std::vector<std::string>* gpu_driver_bug_workarounds); | |
| 220 | |
| 221 // The lifetime of objects of this class is managed by a GpuChannelManager. | |
| 222 // The GpuChannelManager destroy all the GpuChannels that they own when they | |
| 223 // are destroyed. So a raw pointer is safe. | |
| 224 GpuChannelManager* const gpu_channel_manager_; | |
| 225 | |
| 226 // Sync point manager. Outlives the channel and is guaranteed to outlive the | |
| 227 // message loop. | |
| 228 gpu::SyncPointManager* const sync_point_manager_; | |
| 229 | |
| 230 scoped_ptr<IPC::SyncChannel> channel_; | |
| 231 | |
| 232 IPC::Listener* unhandled_message_listener_; | |
| 233 | |
| 234 // Uniquely identifies the channel within this GPU process. | |
| 235 std::string channel_id_; | |
| 236 | |
| 237 // Used to implement message routing functionality to CommandBuffer objects | |
| 238 IPC::MessageRouter router_; | |
| 239 | |
| 240 // Whether the processing of IPCs on this channel is stalled and we should | |
| 241 // preempt other GpuChannels. | |
| 242 scoped_refptr<gpu::PreemptionFlag> preempting_flag_; | |
| 243 | |
| 244 // If non-NULL, all stubs on this channel should stop processing GL | |
| 245 // commands (via their CommandExecutor) when preempted_flag_->IsSet() | |
| 246 scoped_refptr<gpu::PreemptionFlag> preempted_flag_; | |
| 247 | |
| 248 // The id of the client who is on the other side of the channel. | |
| 249 const int32_t client_id_; | |
| 250 | |
| 251 // The tracing ID used for memory allocations associated with this client. | |
| 252 const uint64_t client_tracing_id_; | |
| 253 | |
| 254 // The task runners for the main thread and the io thread. | |
| 255 scoped_refptr<base::SingleThreadTaskRunner> task_runner_; | |
| 256 scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_; | |
| 257 | |
| 258 // The share group that all contexts associated with a particular renderer | |
| 259 // process use. | |
| 260 scoped_refptr<gfx::GLShareGroup> share_group_; | |
| 261 | |
| 262 scoped_refptr<gpu::gles2::MailboxManager> mailbox_manager_; | |
| 263 | |
| 264 scoped_refptr<gpu::gles2::SubscriptionRefSet> subscription_ref_set_; | |
| 265 | |
| 266 scoped_refptr<gpu::ValueStateMap> pending_valuebuffer_state_; | |
| 267 | |
| 268 gpu::gles2::DisallowedFeatures disallowed_features_; | |
| 269 GpuWatchdog* const watchdog_; | |
| 270 | |
| 271 // Map of stream id to appropriate message queue. | |
| 272 base::hash_map<int32_t, scoped_refptr<GpuChannelMessageQueue>> streams_; | |
| 273 | |
| 274 // Multimap of stream id to route ids. | |
| 275 base::hash_map<int32_t, int> streams_to_num_routes_; | |
| 276 | |
| 277 // Map of route id to stream id; | |
| 278 base::hash_map<int32_t, int32_t> routes_to_streams_; | |
| 279 | |
| 280 // Can view command buffers be created on this channel. | |
| 281 const bool allow_view_command_buffers_; | |
| 282 | |
| 283 // Can real time streams be created on this channel. | |
| 284 const bool allow_real_time_streams_; | |
| 285 | |
| 286 // Member variables should appear before the WeakPtrFactory, to ensure | |
| 287 // that any WeakPtrs to Controller are invalidated before its members | |
| 288 // variable's destructors are executed, rendering them invalid. | |
| 289 base::WeakPtrFactory<GpuChannel> weak_factory_; | |
| 290 | |
| 291 DISALLOW_COPY_AND_ASSIGN(GpuChannel); | |
| 292 }; | |
| 293 | |
| 294 // This filter does three things: | |
| 295 // - it counts and timestamps each message forwarded to the channel | |
| 296 // so that we can preempt other channels if a message takes too long to | |
| 297 // process. To guarantee fairness, we must wait a minimum amount of time | |
| 298 // before preempting and we limit the amount of time that we can preempt in | |
| 299 // one shot (see constants above). | |
| 300 // - it handles the GpuCommandBufferMsg_InsertSyncPoint message on the IO | |
| 301 // thread, generating the sync point ID and responding immediately, and then | |
| 302 // posting a task to insert the GpuCommandBufferMsg_RetireSyncPoint message | |
| 303 // into the channel's queue. | |
| 304 // - it generates mailbox names for clients of the GPU process on the IO thread. | |
| 305 class GpuChannelMessageFilter : public IPC::MessageFilter { | |
| 306 public: | |
| 307 GpuChannelMessageFilter(); | |
| 308 | |
| 309 // IPC::MessageFilter implementation. | |
| 310 void OnFilterAdded(IPC::Sender* sender) override; | |
| 311 void OnFilterRemoved() override; | |
| 312 void OnChannelConnected(int32_t peer_pid) override; | |
| 313 void OnChannelError() override; | |
| 314 void OnChannelClosing() override; | |
| 315 bool OnMessageReceived(const IPC::Message& message) override; | |
| 316 | |
| 317 void AddChannelFilter(scoped_refptr<IPC::MessageFilter> filter); | |
| 318 void RemoveChannelFilter(scoped_refptr<IPC::MessageFilter> filter); | |
| 319 | |
| 320 void AddRoute(int32_t route_id, | |
| 321 const scoped_refptr<GpuChannelMessageQueue>& queue); | |
| 322 void RemoveRoute(int32_t route_id); | |
| 323 | |
| 324 bool Send(IPC::Message* message); | |
| 325 | |
| 326 protected: | |
| 327 ~GpuChannelMessageFilter() override; | |
| 328 | |
| 329 private: | |
| 330 scoped_refptr<GpuChannelMessageQueue> LookupStreamByRoute(int32_t route_id); | |
| 331 | |
| 332 bool MessageErrorHandler(const IPC::Message& message, const char* error_msg); | |
| 333 | |
| 334 // Map of route id to message queue. | |
| 335 base::hash_map<int32_t, scoped_refptr<GpuChannelMessageQueue>> routes_; | |
| 336 base::Lock routes_lock_; // Protects |routes_|. | |
| 337 | |
| 338 IPC::Sender* sender_; | |
| 339 base::ProcessId peer_pid_; | |
| 340 std::vector<scoped_refptr<IPC::MessageFilter>> channel_filters_; | |
| 341 | |
| 342 DISALLOW_COPY_AND_ASSIGN(GpuChannelMessageFilter); | |
| 343 }; | |
| 344 | |
| 345 struct GpuChannelMessage { | |
| 346 IPC::Message message; | |
| 347 uint32_t order_number; | |
| 348 base::TimeTicks time_received; | |
| 349 | |
| 350 GpuChannelMessage(const IPC::Message& msg, | |
| 351 uint32_t order_num, | |
| 352 base::TimeTicks ts) | |
| 353 : message(msg), order_number(order_num), time_received(ts) {} | |
| 354 | |
| 355 private: | |
| 356 DISALLOW_COPY_AND_ASSIGN(GpuChannelMessage); | |
| 357 }; | |
| 358 | |
| 359 class GpuChannelMessageQueue | |
| 360 : public base::RefCountedThreadSafe<GpuChannelMessageQueue> { | |
| 361 public: | |
| 362 static scoped_refptr<GpuChannelMessageQueue> Create( | |
| 363 int32_t stream_id, | |
| 364 gpu::GpuStreamPriority stream_priority, | |
| 365 GpuChannel* channel, | |
| 366 const scoped_refptr<base::SingleThreadTaskRunner>& io_task_runner, | |
| 367 const scoped_refptr<gpu::PreemptionFlag>& preempting_flag, | |
| 368 const scoped_refptr<gpu::PreemptionFlag>& preempted_flag, | |
| 369 gpu::SyncPointManager* sync_point_manager); | |
| 370 | |
| 371 void Disable(); | |
| 372 void DisableIO(); | |
| 373 | |
| 374 int32_t stream_id() const { return stream_id_; } | |
| 375 gpu::GpuStreamPriority stream_priority() const { return stream_priority_; } | |
| 376 | |
| 377 bool IsScheduled() const; | |
| 378 void OnRescheduled(bool scheduled); | |
| 379 | |
| 380 bool HasQueuedMessages() const; | |
| 381 | |
| 382 base::TimeTicks GetNextMessageTimeTick() const; | |
| 383 | |
| 384 scoped_refptr<gpu::SyncPointOrderData> GetSyncPointOrderData(); | |
| 385 | |
| 386 // Returns the global order number for the last unprocessed IPC message. | |
| 387 uint32_t GetUnprocessedOrderNum() const; | |
| 388 | |
| 389 // Returns the global order number for the last unprocessed IPC message. | |
| 390 uint32_t GetProcessedOrderNum() const; | |
| 391 | |
| 392 // Should be called before a message begins to be processed. Returns false if | |
| 393 // there are no messages to process. | |
| 394 const GpuChannelMessage* BeginMessageProcessing(); | |
| 395 // Should be called if a message began processing but did not finish. | |
| 396 void PauseMessageProcessing(); | |
| 397 // Should be called if a message is completely processed. Returns true if | |
| 398 // there are more messages to process. | |
| 399 void FinishMessageProcessing(); | |
| 400 | |
| 401 bool PushBackMessage(const IPC::Message& message); | |
| 402 | |
| 403 private: | |
| 404 enum PreemptionState { | |
| 405 // Either there's no other channel to preempt, there are no messages | |
| 406 // pending processing, or we just finished preempting and have to wait | |
| 407 // before preempting again. | |
| 408 IDLE, | |
| 409 // We are waiting kPreemptWaitTimeMs before checking if we should preempt. | |
| 410 WAITING, | |
| 411 // We can preempt whenever any IPC processing takes more than | |
| 412 // kPreemptWaitTimeMs. | |
| 413 CHECKING, | |
| 414 // We are currently preempting (i.e. no stub is descheduled). | |
| 415 PREEMPTING, | |
| 416 // We would like to preempt, but some stub is descheduled. | |
| 417 WOULD_PREEMPT_DESCHEDULED, | |
| 418 }; | |
| 419 | |
| 420 friend class base::RefCountedThreadSafe<GpuChannelMessageQueue>; | |
| 421 | |
| 422 GpuChannelMessageQueue( | |
| 423 int32_t stream_id, | |
| 424 gpu::GpuStreamPriority stream_priority, | |
| 425 GpuChannel* channel, | |
| 426 const scoped_refptr<base::SingleThreadTaskRunner>& io_task_runner, | |
| 427 const scoped_refptr<gpu::PreemptionFlag>& preempting_flag, | |
| 428 const scoped_refptr<gpu::PreemptionFlag>& preempted_flag, | |
| 429 gpu::SyncPointManager* sync_point_manager); | |
| 430 ~GpuChannelMessageQueue(); | |
| 431 | |
| 432 void UpdatePreemptionState(); | |
| 433 void UpdatePreemptionStateHelper(); | |
| 434 | |
| 435 void UpdateStateIdle(); | |
| 436 void UpdateStateWaiting(); | |
| 437 void UpdateStateChecking(); | |
| 438 void UpdateStatePreempting(); | |
| 439 void UpdateStateWouldPreemptDescheduled(); | |
| 440 | |
| 441 void TransitionToIdle(); | |
| 442 void TransitionToWaiting(); | |
| 443 void TransitionToChecking(); | |
| 444 void TransitionToPreempting(); | |
| 445 void TransitionToWouldPreemptDescheduled(); | |
| 446 | |
| 447 bool ShouldTransitionToIdle() const; | |
| 448 | |
| 449 const int32_t stream_id_; | |
| 450 const gpu::GpuStreamPriority stream_priority_; | |
| 451 | |
| 452 // These can be accessed from both IO and main threads and are protected by | |
| 453 // |channel_lock_|. | |
| 454 bool enabled_; | |
| 455 bool scheduled_; | |
| 456 GpuChannel* const channel_; | |
| 457 std::deque<scoped_ptr<GpuChannelMessage>> channel_messages_; | |
| 458 mutable base::Lock channel_lock_; | |
| 459 | |
| 460 // The following are accessed on the IO thread only. | |
| 461 // No lock is necessary for preemption state because it's only accessed on the | |
| 462 // IO thread. | |
| 463 PreemptionState preemption_state_; | |
| 464 // Maximum amount of time that we can spend in PREEMPTING. | |
| 465 // It is reset when we transition to IDLE. | |
| 466 base::TimeDelta max_preemption_time_; | |
| 467 // This timer is used and runs tasks on the IO thread. | |
| 468 scoped_ptr<base::OneShotTimer> timer_; | |
| 469 base::ThreadChecker io_thread_checker_; | |
| 470 | |
| 471 // Keeps track of sync point related state such as message order numbers. | |
| 472 scoped_refptr<gpu::SyncPointOrderData> sync_point_order_data_; | |
| 473 | |
| 474 scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_; | |
| 475 scoped_refptr<gpu::PreemptionFlag> preempting_flag_; | |
| 476 scoped_refptr<gpu::PreemptionFlag> preempted_flag_; | |
| 477 gpu::SyncPointManager* const sync_point_manager_; | |
| 478 | |
| 479 DISALLOW_COPY_AND_ASSIGN(GpuChannelMessageQueue); | |
| 480 }; | |
| 481 | |
| 482 } // namespace content | |
| 483 | |
| 484 #endif // CONTENT_COMMON_GPU_GPU_CHANNEL_H_ | |
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Chromium Code Reviews
Issue 1845563005:
Refactor content/common/gpu into gpu/ipc/service (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master