yuzu/src/video_core/gpu_thread.h
ameerj 52e9d7fa49 gpu_thread: Remove Async NVDEC placeholders
This commit removes early placeholders for an implementation of async nvdec. With recent changes to the source code, the placeholders are no longer accurate, and can cause a nullptr dereference due to the nature of the cdma_pusher lifetime.
2021-02-28 22:03:00 -05:00

153 lines
4.3 KiB
C++

// Copyright 2019 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <atomic>
#include <condition_variable>
#include <mutex>
#include <optional>
#include <thread>
#include <variant>
#include "common/threadsafe_queue.h"
#include "video_core/framebuffer_config.h"
namespace Tegra {
struct FramebufferConfig;
class DmaPusher;
} // namespace Tegra
namespace Core {
namespace Frontend {
class GraphicsContext;
}
class System;
} // namespace Core
namespace VideoCore {
class RasterizerInterface;
class RendererBase;
} // namespace VideoCore
namespace VideoCommon::GPUThread {
/// Command to signal to the GPU thread that processing has ended
struct EndProcessingCommand final {};
/// Command to signal to the GPU thread that a command list is ready for processing
struct SubmitListCommand final {
explicit SubmitListCommand(Tegra::CommandList&& entries_) : entries{std::move(entries_)} {}
Tegra::CommandList entries;
};
/// Command to signal to the GPU thread that a swap buffers is pending
struct SwapBuffersCommand final {
explicit SwapBuffersCommand(std::optional<const Tegra::FramebufferConfig> framebuffer_)
: framebuffer{std::move(framebuffer_)} {}
std::optional<Tegra::FramebufferConfig> framebuffer;
};
/// Command to signal to the GPU thread to flush a region
struct FlushRegionCommand final {
explicit constexpr FlushRegionCommand(VAddr addr_, u64 size_) : addr{addr_}, size{size_} {}
VAddr addr;
u64 size;
};
/// Command to signal to the GPU thread to invalidate a region
struct InvalidateRegionCommand final {
explicit constexpr InvalidateRegionCommand(VAddr addr_, u64 size_) : addr{addr_}, size{size_} {}
VAddr addr;
u64 size;
};
/// Command to signal to the GPU thread to flush and invalidate a region
struct FlushAndInvalidateRegionCommand final {
explicit constexpr FlushAndInvalidateRegionCommand(VAddr addr_, u64 size_)
: addr{addr_}, size{size_} {}
VAddr addr;
u64 size;
};
/// Command called within the gpu, to schedule actions after a command list end
struct OnCommandListEndCommand final {};
/// Command to make the gpu look into pending requests
struct GPUTickCommand final {};
using CommandData =
std::variant<EndProcessingCommand, SubmitListCommand, SwapBuffersCommand, FlushRegionCommand,
InvalidateRegionCommand, FlushAndInvalidateRegionCommand, OnCommandListEndCommand,
GPUTickCommand>;
struct CommandDataContainer {
CommandDataContainer() = default;
explicit CommandDataContainer(CommandData&& data_, u64 next_fence_)
: data{std::move(data_)}, fence{next_fence_} {}
CommandData data;
u64 fence{};
};
/// Struct used to synchronize the GPU thread
struct SynchState final {
std::atomic_bool is_running{true};
using CommandQueue = Common::MPSCQueue<CommandDataContainer>;
CommandQueue queue;
u64 last_fence{};
std::atomic<u64> signaled_fence{};
};
/// Class used to manage the GPU thread
class ThreadManager final {
public:
explicit ThreadManager(Core::System& system_, bool is_async_);
~ThreadManager();
/// Creates and starts the GPU thread.
void StartThread(VideoCore::RendererBase& renderer, Core::Frontend::GraphicsContext& context,
Tegra::DmaPusher& dma_pusher);
/// Push GPU command entries to be processed
void SubmitList(Tegra::CommandList&& entries);
/// Swap buffers (render frame)
void SwapBuffers(const Tegra::FramebufferConfig* framebuffer);
/// Notify rasterizer that any caches of the specified region should be flushed to Switch memory
void FlushRegion(VAddr addr, u64 size);
/// Notify rasterizer that any caches of the specified region should be invalidated
void InvalidateRegion(VAddr addr, u64 size);
/// Notify rasterizer that any caches of the specified region should be flushed and invalidated
void FlushAndInvalidateRegion(VAddr addr, u64 size);
// Wait until the gpu thread is idle.
void WaitIdle() const;
void OnCommandListEnd();
private:
/// Pushes a command to be executed by the GPU thread
u64 PushCommand(CommandData&& command_data);
Core::System& system;
const bool is_async;
VideoCore::RasterizerInterface* rasterizer = nullptr;
SynchState state;
std::thread thread;
};
} // namespace VideoCommon::GPUThread