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Merge pull request #8137 from bunnei/improve-nvflinger-2 

Follow-up fixes for NVFlinger rewrite (Part 2)
This commit is contained in:
bunnei 2022-04-05 19:11:28 -07:00 committed by GitHub
parent 0c1b954e07 fdf4909f97
commit 12dc4d0527
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GPG Key ID: 4AEE18F83AFDEB23
9 changed files with 100 additions and 92 deletions
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44
src/core/hle/service/nvflinger/buffer_queue_consumer.cpp
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@ -18,8 +18,7 @@ BufferQueueConsumer::BufferQueueConsumer(std::shared_ptr<BufferQueueCore> core_)
BufferQueueConsumer::~BufferQueueConsumer() = default;
Status BufferQueueConsumer::AcquireBuffer(BufferItem* out_buffer,
std::chrono::nanoseconds expected_present,
u64 max_frame_number) {
std::chrono::nanoseconds expected_present) {
std::scoped_lock lock(core->mutex);
// Check that the consumer doesn't currently have the maximum number of buffers acquired.
@ -50,12 +49,6 @@ Status BufferQueueConsumer::AcquireBuffer(BufferItem* out_buffer,
while (core->queue.size() > 1 && !core->queue[0].is_auto_timestamp) {
const auto& buffer_item{core->queue[1]};
// If dropping entry[0] would leave us with a buffer that the consumer is not yet ready
// for, don't drop it.
if (max_frame_number && buffer_item.frame_number > max_frame_number) {
break;
}
// If entry[1] is timely, drop entry[0] (and repeat).
const auto desired_present = buffer_item.timestamp;
if (desired_present < expected_present.count() - MAX_REASONABLE_NSEC ||
@ -200,4 +193,39 @@ Status BufferQueueConsumer::Connect(std::shared_ptr<IConsumerListener> consumer_
return Status::NoError;
}
Status BufferQueueConsumer::GetReleasedBuffers(u64* out_slot_mask) {
if (out_slot_mask == nullptr) {
LOG_ERROR(Service_NVFlinger, "out_slot_mask may not be nullptr");
return Status::BadValue;
}
std::scoped_lock lock(core->mutex);
if (core->is_abandoned) {
LOG_ERROR(Service_NVFlinger, "BufferQueue has been abandoned");
return Status::NoInit;
}
u64 mask = 0;
for (int s = 0; s < BufferQueueDefs::NUM_BUFFER_SLOTS; ++s) {
if (!slots[s].acquire_called) {
mask |= (1ULL << s);
}
}
// Remove from the mask queued buffers for which acquire has been called, since the consumer
// will not receive their buffer addresses and so must retain their cached information
auto current(core->queue.begin());
while (current != core->queue.end()) {
if (current->acquire_called) {
mask &= ~(1ULL << current->slot);
}
++current;
}
LOG_DEBUG(Service_NVFlinger, "returning mask {}", mask);
*out_slot_mask = mask;
return Status::NoError;
}
} // namespace Service::android

4
src/core/hle/service/nvflinger/buffer_queue_consumer.h
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@ -24,10 +24,10 @@ public:
explicit BufferQueueConsumer(std::shared_ptr<BufferQueueCore> core_);
~BufferQueueConsumer();
Status AcquireBuffer(BufferItem* out_buffer, std::chrono::nanoseconds expected_present,
u64 max_frame_number = 0);
Status AcquireBuffer(BufferItem* out_buffer, std::chrono::nanoseconds expected_present);
Status ReleaseBuffer(s32 slot, u64 frame_number, const Fence& release_fence);
Status Connect(std::shared_ptr<IConsumerListener> consumer_listener, bool controlled_by_app);
Status GetReleasedBuffers(u64* out_slot_mask);
private:
std::shared_ptr<BufferQueueCore> core;

1
src/core/hle/service/nvflinger/buffer_queue_core.cpp
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@ -95,7 +95,6 @@ void BufferQueueCore::FreeBufferLocked(s32 slot) {
}
void BufferQueueCore::FreeAllBuffersLocked() {
queue.clear();
buffer_has_been_queued = false;
for (s32 slot = 0; slot < BufferQueueDefs::NUM_BUFFER_SLOTS; ++slot) {

2
src/core/hle/service/nvflinger/buffer_queue_core.h
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@ -73,8 +73,6 @@ private:
u32 transform_hint{};
bool is_allocating{};
mutable std::condition_variable_any is_allocating_condition;
bool allow_allocation{true};
u64 buffer_age{};
bool is_shutting_down{};
};

103
src/core/hle/service/nvflinger/buffer_queue_producer.cpp
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@ -62,11 +62,12 @@ Status BufferQueueProducer::RequestBuffer(s32 slot, std::shared_ptr<GraphicBuffe
Status BufferQueueProducer::SetBufferCount(s32 buffer_count) {
LOG_DEBUG(Service_NVFlinger, "count = {}", buffer_count);
std::shared_ptr<IConsumerListener> listener;
std::shared_ptr<IConsumerListener> listener;
{
std::scoped_lock lock(core->mutex);
core->WaitWhileAllocatingLocked();
if (core->is_abandoned) {
LOG_ERROR(Service_NVFlinger, "BufferQueue has been abandoned");
return Status::NoInit;
@ -120,7 +121,7 @@ Status BufferQueueProducer::SetBufferCount(s32 buffer_count) {
}
Status BufferQueueProducer::WaitForFreeSlotThenRelock(bool async, s32* found,
Status* returnFlags) const {
Status* return_flags) const {
bool try_again = true;
while (try_again) {
@ -142,10 +143,12 @@ Status BufferQueueProducer::WaitForFreeSlotThenRelock(bool async, s32* found,
ASSERT(slots[s].buffer_state == BufferState::Free);
if (slots[s].graphic_buffer != nullptr) {
core->FreeBufferLocked(s);
*returnFlags |= Status::ReleaseAllBuffers;
*return_flags |= Status::ReleaseAllBuffers;
}
}
// Look for a free buffer to give to the client
*found = BufferQueueCore::INVALID_BUFFER_SLOT;
s32 dequeued_count{};
s32 acquired_count{};
for (s32 s{}; s < max_buffer_count; ++s) {
@ -235,68 +238,50 @@ Status BufferQueueProducer::DequeueBuffer(s32* out_slot, Fence* out_fence, bool
{
std::scoped_lock lock(core->mutex);
core->WaitWhileAllocatingLocked();
if (format == PixelFormat::NoFormat) {
format = core->default_buffer_format;
}
// Enable the usage bits the consumer requested
usage |= core->consumer_usage_bit;
s32 found{};
Status status = WaitForFreeSlotThenRelock(async, &found, &return_flags);
if (status != Status::NoError) {
return status;
}
// This should not happen
if (found == BufferQueueCore::INVALID_BUFFER_SLOT) {
LOG_ERROR(Service_NVFlinger, "no available buffer slots");
return Status::Busy;
}
*out_slot = found;
attached_by_consumer = slots[found].attached_by_consumer;
const bool use_default_size = !width && !height;
if (use_default_size) {
width = core->default_width;
height = core->default_height;
}
s32 found = BufferItem::INVALID_BUFFER_SLOT;
while (found == BufferItem::INVALID_BUFFER_SLOT) {
Status status = WaitForFreeSlotThenRelock(async, &found, &return_flags);
if (status != Status::NoError) {
return status;
}
// This should not happen
if (found == BufferQueueCore::INVALID_BUFFER_SLOT) {
LOG_DEBUG(Service_NVFlinger, "no available buffer slots");
return Status::Busy;
}
const std::shared_ptr<GraphicBuffer>& buffer(slots[found].graphic_buffer);
// If we are not allowed to allocate new buffers, WaitForFreeSlotThenRelock must have
// returned a slot containing a buffer. If this buffer would require reallocation to
// meet the requested attributes, we free it and attempt to get another one.
if (!core->allow_allocation) {
if (buffer->NeedsReallocation(width, height, format, usage)) {
core->FreeBufferLocked(found);
found = BufferItem::INVALID_BUFFER_SLOT;
continue;
}
}
}
*out_slot = found;
attached_by_consumer = slots[found].attached_by_consumer;
slots[found].buffer_state = BufferState::Dequeued;
const std::shared_ptr<GraphicBuffer>& buffer(slots[found].graphic_buffer);
if ((buffer == nullptr) || buffer->NeedsReallocation(width, height, format, usage)) {
if ((buffer == nullptr) || (buffer->Width() != width) || (buffer->Height() != height) ||
(buffer->Format() != format) || ((buffer->Usage() & usage) != usage)) {
slots[found].acquire_called = false;
slots[found].graphic_buffer = nullptr;
slots[found].request_buffer_called = false;
slots[found].fence = Fence::NoFence();
core->buffer_age = 0;
return_flags |= Status::BufferNeedsReallocation;
} else {
// We add 1 because that will be the frame number when this buffer
// is queued
core->buffer_age = core->frame_counter + 1 - slots[found].frame_number;
}
LOG_DEBUG(Service_NVFlinger, "setting buffer age to {}", core->buffer_age);
*out_fence = slots[found].fence;
slots[found].fence = Fence::NoFence();
}
@ -311,6 +296,7 @@ Status BufferQueueProducer::DequeueBuffer(s32* out_slot, Fence* out_fence, bool
{
std::scoped_lock lock(core->mutex);
if (core->is_abandoned) {
LOG_ERROR(Service_NVFlinger, "BufferQueue has been abandoned");
return Status::NoInit;
@ -327,6 +313,7 @@ Status BufferQueueProducer::DequeueBuffer(s32* out_slot, Fence* out_fence, bool
LOG_DEBUG(Service_NVFlinger, "returning slot={} frame={}, flags={}", *out_slot,
slots[*out_slot].frame_number, return_flags);
return return_flags;
}
@ -334,6 +321,7 @@ Status BufferQueueProducer::DetachBuffer(s32 slot) {
LOG_DEBUG(Service_NVFlinger, "slot {}", slot);
std::scoped_lock lock(core->mutex);
if (core->is_abandoned) {
LOG_ERROR(Service_NVFlinger, "BufferQueue has been abandoned");
return Status::NoInit;
@ -369,7 +357,6 @@ Status BufferQueueProducer::DetachNextBuffer(std::shared_ptr<GraphicBuffer>* out
}
std::scoped_lock lock(core->mutex);
core->WaitWhileAllocatingLocked();
if (core->is_abandoned) {
@ -423,6 +410,7 @@ Status BufferQueueProducer::AttachBuffer(s32* out_slot,
return status;
}
// This should not happen
if (found == BufferQueueCore::INVALID_BUFFER_SLOT) {
LOG_ERROR(Service_NVFlinger, "No available buffer slots");
return Status::Busy;
@ -466,8 +454,8 @@ Status BufferQueueProducer::QueueBuffer(s32 slot, const QueueBufferInput& input,
return Status::BadValue;
}
std::shared_ptr<IConsumerListener> frameAvailableListener;
std::shared_ptr<IConsumerListener> frameReplacedListener;
std::shared_ptr<IConsumerListener> frame_available_listener;
std::shared_ptr<IConsumerListener> frame_replaced_listener;
s32 callback_ticket{};
BufferItem item;
@ -541,12 +529,13 @@ Status BufferQueueProducer::QueueBuffer(s32 slot, const QueueBufferInput& input,
item.fence = fence;
item.is_droppable = core->dequeue_buffer_cannot_block || async;
item.swap_interval = swap_interval;
sticky_transform = sticky_transform_;
if (core->queue.empty()) {
// When the queue is empty, we can simply queue this buffer
core->queue.push_back(item);
frameAvailableListener = core->consumer_listener;
frame_available_listener = core->consumer_listener;
} else {
// When the queue is not empty, we need to look at the front buffer
// state to see if we need to replace it
@ -563,10 +552,10 @@ Status BufferQueueProducer::QueueBuffer(s32 slot, const QueueBufferInput& input,
}
// Overwrite the droppable buffer with the incoming one
*front = item;
frameReplacedListener = core->consumer_listener;
frame_replaced_listener = core->consumer_listener;
} else {
core->queue.push_back(item);
frameAvailableListener = core->consumer_listener;
frame_available_listener = core->consumer_listener;
}
}
@ -592,10 +581,10 @@ Status BufferQueueProducer::QueueBuffer(s32 slot, const QueueBufferInput& input,
callback_condition.wait(callback_mutex);
}
if (frameAvailableListener != nullptr) {
frameAvailableListener->OnFrameAvailable(item);
} else if (frameReplacedListener != nullptr) {
frameReplacedListener->OnFrameReplaced(item);
if (frame_available_listener != nullptr) {
frame_available_listener->OnFrameAvailable(item);
} else if (frame_replaced_listener != nullptr) {
frame_replaced_listener->OnFrameReplaced(item);
}
++current_callback_ticket;
@ -669,13 +658,6 @@ Status BufferQueueProducer::Query(NativeWindow what, s32* out_value) {
case NativeWindow::ConsumerUsageBits:
value = core->consumer_usage_bit;
break;
case NativeWindow::BufferAge:
if (core->buffer_age > INT32_MAX) {
value = 0;
} else {
value = static_cast<u32>(core->buffer_age);
}
break;
default:
UNREACHABLE();
return Status::BadValue;
@ -737,7 +719,6 @@ Status BufferQueueProducer::Connect(const std::shared_ptr<IProducerListener>& li
core->buffer_has_been_queued = false;
core->dequeue_buffer_cannot_block =
core->consumer_controlled_by_app && producer_controlled_by_app;
core->allow_allocation = true;
return status;
}
@ -770,7 +751,7 @@ Status BufferQueueProducer::Disconnect(NativeWindowApi api) {
core->SignalDequeueCondition();
buffer_wait_event->GetWritableEvent().Signal();
listener = core->consumer_listener;
} else if (core->connected_api != NativeWindowApi::NoConnectedApi) {
} else {
LOG_ERROR(Service_NVFlinger, "still connected to another api (cur = {} req = {})",
core->connected_api, api);
status = Status::BadValue;

2
src/core/hle/service/nvflinger/buffer_queue_producer.h
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@ -66,7 +66,7 @@ public:
private:
BufferQueueProducer(const BufferQueueProducer&) = delete;
Status WaitForFreeSlotThenRelock(bool async, s32* found, Status* returnFlags) const;
Status WaitForFreeSlotThenRelock(bool async, s32* found, Status* return_flags) const;
Kernel::KEvent* buffer_wait_event{};
Service::KernelHelpers::ServiceContext& service_context;

29
src/core/hle/service/nvflinger/consumer_base.cpp
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@ -36,38 +36,41 @@ void ConsumerBase::FreeBufferLocked(s32 slot_index) {
}
void ConsumerBase::OnFrameAvailable(const BufferItem& item) {
std::scoped_lock lock(mutex);
LOG_DEBUG(Service_NVFlinger, "called");
}
void ConsumerBase::OnFrameReplaced(const BufferItem& item) {
std::scoped_lock lock(mutex);
LOG_DEBUG(Service_NVFlinger, "called");
}
void ConsumerBase::OnBuffersReleased() {
std::scoped_lock lock(mutex);
LOG_DEBUG(Service_NVFlinger, "called");
if (is_abandoned) {
// Nothing to do if we're already abandoned.
return;
}
u64 mask = 0;
consumer->GetReleasedBuffers(&mask);
for (int i = 0; i < BufferQueueDefs::NUM_BUFFER_SLOTS; i++) {
if (mask & (1ULL << i)) {
FreeBufferLocked(i);
}
}
}
void ConsumerBase::OnSidebandStreamChanged() {}
Status ConsumerBase::AcquireBufferLocked(BufferItem* item, std::chrono::nanoseconds present_when,
u64 max_frame_number) {
if (is_abandoned) {
LOG_ERROR(Service_NVFlinger, "consumer is abandoned!");
return Status::NoInit;
}
Status err = consumer->AcquireBuffer(item, present_when, max_frame_number);
Status ConsumerBase::AcquireBufferLocked(BufferItem* item, std::chrono::nanoseconds present_when) {
Status err = consumer->AcquireBuffer(item, present_when);
if (err != Status::NoError) {
return err;
}
if (item->graphic_buffer != nullptr) {
if (slots[item->slot].graphic_buffer != nullptr) {
FreeBufferLocked(item->slot);
}
slots[item->slot].graphic_buffer = item->graphic_buffer;
}

3
src/core/hle/service/nvflinger/consumer_base.h
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@ -35,8 +35,7 @@ protected:
virtual void OnSidebandStreamChanged() override;
void FreeBufferLocked(s32 slot_index);
Status AcquireBufferLocked(BufferItem* item, std::chrono::nanoseconds present_when,
u64 max_frame_number = 0);
Status AcquireBufferLocked(BufferItem* item, std::chrono::nanoseconds present_when);
Status ReleaseBufferLocked(s32 slot, const std::shared_ptr<GraphicBuffer> graphic_buffer);
bool StillTracking(s32 slot, const std::shared_ptr<GraphicBuffer> graphic_buffer) const;
Status AddReleaseFenceLocked(s32 slot, const std::shared_ptr<GraphicBuffer> graphic_buffer,

4
src/core/hle/service/nvflinger/nvflinger.cpp
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@ -104,7 +104,7 @@ void NVFlinger::SetNVDrvInstance(std::shared_ptr<Nvidia::Module> instance) {
std::optional<u64> NVFlinger::OpenDisplay(std::string_view name) {
const auto lock_guard = Lock();
LOG_DEBUG(Service, "Opening \"{}\" display", name);
LOG_DEBUG(Service_NVFlinger, "Opening \"{}\" display", name);
const auto itr =
std::find_if(displays.begin(), displays.end(),
@ -219,7 +219,7 @@ VI::Layer* NVFlinger::FindOrCreateLayer(u64 display_id, u64 layer_id) {
auto* layer = display->FindLayer(layer_id);
if (layer == nullptr) {
LOG_DEBUG(Service, "Layer at id {} not found. Trying to create it.", layer_id);
LOG_DEBUG(Service_NVFlinger, "Layer at id {} not found. Trying to create it.", layer_id);
CreateLayerAtId(*display, layer_id);
return display->FindLayer(layer_id);
}