134 lines
3.8 KiB
C++
134 lines
3.8 KiB
C++
// Copyright 2019 yuzu Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include <atomic>
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#include <condition_variable>
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#include <mutex>
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#include <optional>
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#include <thread>
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#include <variant>
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#include "common/threadsafe_queue.h"
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#include "video_core/gpu.h"
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namespace Tegra {
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struct FramebufferConfig;
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class DmaPusher;
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} // namespace Tegra
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namespace Core {
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class System;
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} // namespace Core
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namespace VideoCommon::GPUThread {
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/// Command to signal to the GPU thread that processing has ended
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struct EndProcessingCommand final {};
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/// Command to signal to the GPU thread that a command list is ready for processing
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struct SubmitListCommand final {
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explicit SubmitListCommand(Tegra::CommandList&& entries) : entries{std::move(entries)} {}
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Tegra::CommandList entries;
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};
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/// Command to signal to the GPU thread that a swap buffers is pending
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struct SwapBuffersCommand final {
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explicit SwapBuffersCommand(std::optional<const Tegra::FramebufferConfig> framebuffer)
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: framebuffer{std::move(framebuffer)} {}
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std::optional<Tegra::FramebufferConfig> framebuffer;
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};
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/// Command to signal to the GPU thread to flush a region
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struct FlushRegionCommand final {
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explicit constexpr FlushRegionCommand(CacheAddr addr, u64 size) : addr{addr}, size{size} {}
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CacheAddr addr;
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u64 size;
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};
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/// Command to signal to the GPU thread to invalidate a region
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struct InvalidateRegionCommand final {
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explicit constexpr InvalidateRegionCommand(CacheAddr addr, u64 size) : addr{addr}, size{size} {}
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CacheAddr addr;
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u64 size;
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};
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/// Command to signal to the GPU thread to flush and invalidate a region
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struct FlushAndInvalidateRegionCommand final {
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explicit constexpr FlushAndInvalidateRegionCommand(CacheAddr addr, u64 size)
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: addr{addr}, size{size} {}
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CacheAddr addr;
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u64 size;
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};
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using CommandData =
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std::variant<EndProcessingCommand, SubmitListCommand, SwapBuffersCommand, FlushRegionCommand,
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InvalidateRegionCommand, FlushAndInvalidateRegionCommand>;
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struct CommandDataContainer {
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CommandDataContainer() = default;
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CommandDataContainer(CommandData&& data, u64 next_fence)
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: data{std::move(data)}, fence{next_fence} {}
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CommandData data;
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u64 fence{};
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};
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/// Struct used to synchronize the GPU thread
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struct SynchState final {
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std::atomic_bool is_running{true};
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using CommandQueue = Common::SPSCQueue<CommandDataContainer>;
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CommandQueue queue;
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u64 last_fence{};
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std::atomic<u64> signaled_fence{};
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};
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/// Class used to manage the GPU thread
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class ThreadManager final {
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public:
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explicit ThreadManager(Core::System& system);
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~ThreadManager();
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/// Creates and starts the GPU thread.
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void StartThread(VideoCore::RendererBase& renderer, Tegra::DmaPusher& dma_pusher);
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/// Push GPU command entries to be processed
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void SubmitList(Tegra::CommandList&& entries);
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/// Swap buffers (render frame)
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void SwapBuffers(const Tegra::FramebufferConfig* framebuffer);
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/// Notify rasterizer that any caches of the specified region should be flushed to Switch memory
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void FlushRegion(CacheAddr addr, u64 size);
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/// Notify rasterizer that any caches of the specified region should be invalidated
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void InvalidateRegion(CacheAddr addr, u64 size);
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/// Notify rasterizer that any caches of the specified region should be flushed and invalidated
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void FlushAndInvalidateRegion(CacheAddr addr, u64 size);
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// Wait until the gpu thread is idle.
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void WaitIdle() const;
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private:
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/// Pushes a command to be executed by the GPU thread
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u64 PushCommand(CommandData&& command_data);
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private:
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SynchState state;
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Core::System& system;
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std::thread thread;
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std::thread::id thread_id;
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};
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} // namespace VideoCommon::GPUThread
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