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video_core: gpu: Implement synchronous mode using threaded GPU.

This commit is contained in:
bunnei 2020-12-12 00:24:33 -08:00
parent 14c825bd1c
commit 40571c073f
4 changed files with 34 additions and 12 deletions

View File

@ -38,7 +38,7 @@ GPU::GPU(Core::System& system_, bool is_async_, bool use_nvdec_)
maxwell_dma{std::make_unique<Engines::MaxwellDMA>(system, *memory_manager)},
kepler_memory{std::make_unique<Engines::KeplerMemory>(system, *memory_manager)},
shader_notify{std::make_unique<VideoCore::ShaderNotify>()}, is_async{is_async_},
gpu_thread{system_} {}
gpu_thread{system_, is_async_} {}
GPU::~GPU() = default;
@ -524,7 +524,10 @@ void GPU::WaitIdle() const {
}
void GPU::OnCommandListEnd() {
gpu_thread.OnCommandListEnd();
if (is_async) {
// This command only applies to asynchronous GPU mode
gpu_thread.OnCommandListEnd();
}
}
} // namespace Tegra

View File

@ -406,10 +406,10 @@ private:
u64 last_flush_fence{};
std::mutex flush_request_mutex;
const bool is_async;
VideoCommon::GPUThread::ThreadManager gpu_thread;
std::unique_ptr<Core::Frontend::GraphicsContext> cpu_context;
const bool is_async;
};
#define ASSERT_REG_POSITION(field_name, position) \

View File

@ -65,7 +65,8 @@ static void RunThread(Core::System& system, VideoCore::RendererBase& renderer,
}
}
ThreadManager::ThreadManager(Core::System& system_) : system{system_} {}
ThreadManager::ThreadManager(Core::System& system_, bool is_async_)
: system{system_}, is_async{is_async_} {}
ThreadManager::~ThreadManager() {
if (!thread.joinable()) {
@ -97,19 +98,30 @@ void ThreadManager::SwapBuffers(const Tegra::FramebufferConfig* framebuffer) {
}
void ThreadManager::FlushRegion(VAddr addr, u64 size) {
if (!Settings::IsGPULevelHigh()) {
if (!is_async) {
// Always flush with synchronous GPU mode
PushCommand(FlushRegionCommand(addr, size));
return;
}
if (!Settings::IsGPULevelExtreme()) {
return;
}
if (system.Renderer().Rasterizer().MustFlushRegion(addr, size)) {
// Asynchronous GPU mode
switch (Settings::values.gpu_accuracy.GetValue()) {
case Settings::GPUAccuracy::Normal:
PushCommand(FlushRegionCommand(addr, size));
break;
case Settings::GPUAccuracy::High:
// TODO(bunnei): Is this right? Preserving existing behavior for now
break;
case Settings::GPUAccuracy::Extreme: {
auto& gpu = system.GPU();
u64 fence = gpu.RequestFlush(addr, size);
PushCommand(GPUTickCommand());
while (fence > gpu.CurrentFlushRequestFence()) {
}
break;
}
default:
UNIMPLEMENTED_MSG("Unsupported gpu_accuracy {}", Settings::values.gpu_accuracy.GetValue());
}
}
@ -134,6 +146,12 @@ void ThreadManager::OnCommandListEnd() {
u64 ThreadManager::PushCommand(CommandData&& command_data) {
const u64 fence{++state.last_fence};
state.queue.Push(CommandDataContainer(std::move(command_data), fence));
if (!is_async) {
// In synchronous GPU mode, block the caller until the command has executed
WaitIdle();
}
return fence;
}

View File

@ -27,7 +27,7 @@ class System;
} // namespace Core
namespace VideoCore {
class RendererBase;
class RendererBase;
} // namespace VideoCore
namespace VideoCommon::GPUThread {
@ -117,7 +117,7 @@ struct SynchState final {
/// Class used to manage the GPU thread
class ThreadManager final {
public:
explicit ThreadManager(Core::System& system_);
explicit ThreadManager(Core::System& system_, bool is_async_);
~ThreadManager();
/// Creates and starts the GPU thread.
@ -155,6 +155,7 @@ private:
Core::System& system;
std::thread thread;
std::thread::id thread_id;
const bool is_async;
};
} // namespace VideoCommon::GPUThread