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nvnflinger: fix lost wakeup

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This commit is contained in:
Liam
2022-11-14 21:00:32 -05:00
parent 040a01a5dd
commit cf202f3718
4 changed files with 16 additions and 12 deletions
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6
src/core/hle/service/nvflinger/buffer_queue_core.cpp
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@@ -23,15 +23,17 @@ void BufferQueueCore::NotifyShutdown() {
}
void BufferQueueCore::SignalDequeueCondition() {
dequeue_possible.store(true);
dequeue_condition.notify_all();
}
bool BufferQueueCore::WaitForDequeueCondition() {
bool BufferQueueCore::WaitForDequeueCondition(std::unique_lock<std::mutex>& lk) {
if (is_shutting_down) {
return false;
}
dequeue_condition.wait(mutex);
dequeue_condition.wait(lk, [&] { return dequeue_possible.load(); });
dequeue_possible.store(false);
return true;
}

5
src/core/hle/service/nvflinger/buffer_queue_core.h
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@@ -38,7 +38,7 @@ public:
private:
void SignalDequeueCondition();
bool WaitForDequeueCondition();
bool WaitForDequeueCondition(std::unique_lock<std::mutex>& lk);
s32 GetMinUndequeuedBufferCountLocked(bool async) const;
s32 GetMinMaxBufferCountLocked(bool async) const;
@@ -60,7 +60,8 @@ private:
BufferQueueDefs::SlotsType slots{};
std::vector<BufferItem> queue;
s32 override_max_buffer_count{};
mutable std::condition_variable_any dequeue_condition;
std::condition_variable dequeue_condition;
std::atomic<bool> dequeue_possible{};
const bool use_async_buffer{}; // This is always disabled on HOS
bool dequeue_buffer_cannot_block{};
PixelFormat default_buffer_format{PixelFormat::Rgba8888};

14
src/core/hle/service/nvflinger/buffer_queue_producer.cpp
View File

@@ -121,8 +121,8 @@ Status BufferQueueProducer::SetBufferCount(s32 buffer_count) {
return Status::NoError;
}
Status BufferQueueProducer::WaitForFreeSlotThenRelock(bool async, s32* found,
Status* return_flags) const {
Status BufferQueueProducer::WaitForFreeSlotThenRelock(bool async, s32* found, Status* return_flags,
std::unique_lock<std::mutex>& lk) const {
bool try_again = true;
while (try_again) {
@@ -214,7 +214,7 @@ Status BufferQueueProducer::WaitForFreeSlotThenRelock(bool async, s32* found,
return Status::WouldBlock;
}
if (!core->WaitForDequeueCondition()) {
if (!core->WaitForDequeueCondition(lk)) {
// We are no longer running
return Status::NoError;
}
@@ -237,7 +237,7 @@ Status BufferQueueProducer::DequeueBuffer(s32* out_slot, Fence* out_fence, bool
Status return_flags = Status::NoError;
bool attached_by_consumer = false;
{
std::scoped_lock lock{core->mutex};
std::unique_lock lock{core->mutex};
core->WaitWhileAllocatingLocked();
if (format == PixelFormat::NoFormat) {
@@ -248,7 +248,7 @@ Status BufferQueueProducer::DequeueBuffer(s32* out_slot, Fence* out_fence, bool
usage |= core->consumer_usage_bit;
s32 found{};
Status status = WaitForFreeSlotThenRelock(async, &found, &return_flags);
Status status = WaitForFreeSlotThenRelock(async, &found, &return_flags, lock);
if (status != Status::NoError) {
return status;
}
@@ -400,13 +400,13 @@ Status BufferQueueProducer::AttachBuffer(s32* out_slot,
return Status::BadValue;
}
std::scoped_lock lock{core->mutex};
std::unique_lock lock{core->mutex};
core->WaitWhileAllocatingLocked();
Status return_flags = Status::NoError;
s32 found{};
const auto status = WaitForFreeSlotThenRelock(false, &found, &return_flags);
const auto status = WaitForFreeSlotThenRelock(false, &found, &return_flags, lock);
if (status != Status::NoError) {
return status;
}

3
src/core/hle/service/nvflinger/buffer_queue_producer.h
View File

@@ -70,7 +70,8 @@ public:
private:
BufferQueueProducer(const BufferQueueProducer&) = delete;
Status WaitForFreeSlotThenRelock(bool async, s32* found, Status* return_flags) const;
Status WaitForFreeSlotThenRelock(bool async, s32* found, Status* return_flags,
std::unique_lock<std::mutex>& lk) const;
Kernel::KEvent* buffer_wait_event{};
Service::KernelHelpers::ServiceContext& service_context;