Merge pull request #11917 from liamwhite/abandonment
nvnflinger: implement consumer abandonment
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commit
6c64d5aff2
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@ -175,6 +175,25 @@ Status BufferQueueConsumer::Connect(std::shared_ptr<IConsumerListener> consumer_
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return Status::NoError;
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}
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Status BufferQueueConsumer::Disconnect() {
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LOG_DEBUG(Service_Nvnflinger, "called");
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std::scoped_lock lock{core->mutex};
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if (core->consumer_listener == nullptr) {
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LOG_ERROR(Service_Nvnflinger, "no consumer is connected");
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return Status::BadValue;
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}
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core->is_abandoned = true;
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core->consumer_listener = nullptr;
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core->queue.clear();
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core->FreeAllBuffersLocked();
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core->SignalDequeueCondition();
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return Status::NoError;
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}
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Status BufferQueueConsumer::GetReleasedBuffers(u64* out_slot_mask) {
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if (out_slot_mask == nullptr) {
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LOG_ERROR(Service_Nvnflinger, "out_slot_mask may not be nullptr");
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@ -32,6 +32,7 @@ public:
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Status AcquireBuffer(BufferItem* out_buffer, std::chrono::nanoseconds expected_present);
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Status ReleaseBuffer(s32 slot, u64 frame_number, const Fence& release_fence);
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Status Connect(std::shared_ptr<IConsumerListener> consumer_listener, bool controlled_by_app);
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Status Disconnect();
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Status GetReleasedBuffers(u64* out_slot_mask);
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private:
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@ -14,24 +14,12 @@ BufferQueueCore::BufferQueueCore() = default;
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BufferQueueCore::~BufferQueueCore() = default;
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void BufferQueueCore::NotifyShutdown() {
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std::scoped_lock lock{mutex};
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is_shutting_down = true;
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SignalDequeueCondition();
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}
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void BufferQueueCore::SignalDequeueCondition() {
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dequeue_possible.store(true);
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dequeue_condition.notify_all();
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}
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bool BufferQueueCore::WaitForDequeueCondition(std::unique_lock<std::mutex>& lk) {
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if (is_shutting_down) {
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return false;
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}
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dequeue_condition.wait(lk, [&] { return dequeue_possible.load(); });
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dequeue_possible.store(false);
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@ -34,8 +34,6 @@ public:
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BufferQueueCore();
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~BufferQueueCore();
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void NotifyShutdown();
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private:
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void SignalDequeueCondition();
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bool WaitForDequeueCondition(std::unique_lock<std::mutex>& lk);
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@ -74,7 +72,6 @@ private:
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u32 transform_hint{};
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bool is_allocating{};
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mutable std::condition_variable_any is_allocating_condition;
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bool is_shutting_down{};
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};
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} // namespace Service::android
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@ -27,6 +27,26 @@ void ConsumerBase::Connect(bool controlled_by_app) {
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consumer->Connect(shared_from_this(), controlled_by_app);
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}
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void ConsumerBase::Abandon() {
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LOG_DEBUG(Service_Nvnflinger, "called");
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std::scoped_lock lock{mutex};
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if (!is_abandoned) {
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this->AbandonLocked();
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is_abandoned = true;
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}
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}
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void ConsumerBase::AbandonLocked() {
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for (int i = 0; i < BufferQueueDefs::NUM_BUFFER_SLOTS; i++) {
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this->FreeBufferLocked(i);
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}
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// disconnect from the BufferQueue
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consumer->Disconnect();
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consumer = nullptr;
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}
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void ConsumerBase::FreeBufferLocked(s32 slot_index) {
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LOG_DEBUG(Service_Nvnflinger, "slot_index={}", slot_index);
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@ -24,6 +24,7 @@ class BufferQueueConsumer;
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class ConsumerBase : public IConsumerListener, public std::enable_shared_from_this<ConsumerBase> {
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public:
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void Connect(bool controlled_by_app);
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void Abandon();
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protected:
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explicit ConsumerBase(std::unique_ptr<BufferQueueConsumer> consumer_);
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@ -34,6 +35,7 @@ protected:
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void OnBuffersReleased() override;
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void OnSidebandStreamChanged() override;
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void AbandonLocked();
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void FreeBufferLocked(s32 slot_index);
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Status AcquireBufferLocked(BufferItem* item, std::chrono::nanoseconds present_when);
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Status ReleaseBufferLocked(s32 slot, const std::shared_ptr<GraphicBuffer>& graphic_buffer);
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@ -47,8 +47,11 @@ void Nvnflinger::SplitVSync(std::stop_token stop_token) {
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vsync_signal.Wait();
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const auto lock_guard = Lock();
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if (!is_abandoned) {
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Compose();
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}
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}
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}
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Nvnflinger::Nvnflinger(Core::System& system_, HosBinderDriverServer& hos_binder_driver_server_)
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@ -98,7 +101,6 @@ Nvnflinger::~Nvnflinger() {
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}
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ShutdownLayers();
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vsync_thread = {};
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if (nvdrv) {
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nvdrv->Close(disp_fd);
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@ -106,12 +108,20 @@ Nvnflinger::~Nvnflinger() {
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}
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void Nvnflinger::ShutdownLayers() {
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// Abandon consumers.
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{
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const auto lock_guard = Lock();
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for (auto& display : displays) {
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for (size_t layer = 0; layer < display.GetNumLayers(); ++layer) {
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display.GetLayer(layer).Core().NotifyShutdown();
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display.GetLayer(layer).GetConsumer().Abandon();
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}
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}
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is_abandoned = true;
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}
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// Join the vsync thread, if it exists.
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vsync_thread = {};
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}
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void Nvnflinger::SetNVDrvInstance(std::shared_ptr<Nvidia::Module> instance) {
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@ -140,6 +140,8 @@ private:
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s32 swap_interval = 1;
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bool is_abandoned = false;
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/// Event that handles screen composition.
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std::shared_ptr<Core::Timing::EventType> multi_composition_event;
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std::shared_ptr<Core::Timing::EventType> single_composition_event;
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