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Merge pull request #99066 from DarioSamo/rd-transfer-worker-deadlock-fix
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Browse Source 
Give the barrier pool its own mutex to avoid a deadlock with transfer workers.
This commit is contained in:
Thaddeus Crews 2024-11-13 08:34:36 -06:00
commit 76fa7b2914
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GPG Key ID: 62181B86FE9E5D84
2 changed files with 10 additions and 5 deletions
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11
servers/rendering/rendering_device.cpp
View File

@ -5272,14 +5272,13 @@ void RenderingDevice::_wait_for_transfer_worker(TransferWorker *p_transfer_worke
p_transfer_worker->operations_processed = p_transfer_worker->operations_submitted;
}
if (!p_transfer_worker->texture_barriers.is_empty()) {
MutexLock transfer_worker_lock(transfer_worker_pool_mutex);
_flush_barriers_for_transfer_worker(p_transfer_worker);
}
}
void RenderingDevice::_flush_barriers_for_transfer_worker(TransferWorker *p_transfer_worker) {
// Caller must have already acquired the mutex for the worker.
if (!p_transfer_worker->texture_barriers.is_empty()) {
MutexLock transfer_worker_lock(transfer_worker_pool_texture_barriers_mutex);
for (uint32_t i = 0; i < p_transfer_worker->texture_barriers.size(); i++) {
transfer_worker_pool_texture_barriers.push_back(p_transfer_worker->texture_barriers[i]);
}
@ -5352,8 +5351,11 @@ void RenderingDevice::_submit_transfer_workers(RDD::CommandBufferID p_draw_comma
}
}
}
}
if (p_draw_command_buffer && !transfer_worker_pool_texture_barriers.is_empty()) {
void RenderingDevice::_submit_transfer_barriers(RDD::CommandBufferID p_draw_command_buffer) {
MutexLock transfer_worker_lock(transfer_worker_pool_texture_barriers_mutex);
if (!transfer_worker_pool_texture_barriers.is_empty()) {
driver->command_pipeline_barrier(p_draw_command_buffer, RDD::PIPELINE_STAGE_COPY_BIT, RDD::PIPELINE_STAGE_ALL_COMMANDS_BIT, {}, {}, transfer_worker_pool_texture_barriers);
transfer_worker_pool_texture_barriers.clear();
}
@ -5953,6 +5955,7 @@ void RenderingDevice::_end_frame() {
// The command buffer must be copied into a stack variable as the driver workarounds can change the command buffer in use.
RDD::CommandBufferID command_buffer = frames[frame].command_buffer;
_submit_transfer_workers(command_buffer);
_submit_transfer_barriers(command_buffer);
draw_graph.end(RENDER_GRAPH_REORDER, RENDER_GRAPH_FULL_BARRIERS, command_buffer, frames[frame].command_buffer_pool);
driver->command_buffer_end(command_buffer);

2
servers/rendering/rendering_device.h
View File

@ -1285,6 +1285,7 @@ private:
LocalVector<uint32_t> transfer_worker_pool_available_list;
LocalVector<RDD::TextureBarrier> transfer_worker_pool_texture_barriers;
BinaryMutex transfer_worker_pool_mutex;
BinaryMutex transfer_worker_pool_texture_barriers_mutex;
ConditionVariable transfer_worker_pool_condition;
TransferWorker *_acquire_transfer_worker(uint32_t p_transfer_size, uint32_t p_required_align, uint32_t &r_staging_offset);
@ -1299,6 +1300,7 @@ private:
void _check_transfer_worker_vertex_array(VertexArray *p_vertex_array);
void _check_transfer_worker_index_array(IndexArray *p_index_array);
void _submit_transfer_workers(RDD::CommandBufferID p_draw_command_buffer = RDD::CommandBufferID());
void _submit_transfer_barriers(RDD::CommandBufferID p_draw_command_buffer);
void _wait_for_transfer_workers();
void _free_transfer_workers();