1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
// SPDX-FileCopyrightText: Copyright 2019 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <atomic>
#include <condition_variable>
#include <mutex>
#include <optional>
#include <thread>
#include <variant>
#include "common/polyfill_thread.h"
#include "common/threadsafe_queue.h"
#include "video_core/framebuffer_config.h"
namespace Tegra {
struct FramebufferConfig;
namespace Control {
class Scheduler;
}
} // 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 a command list is ready for processing
struct SubmitListCommand final {
explicit SubmitListCommand(s32 channel_, Tegra::CommandList&& entries_)
: channel{channel_}, entries{std::move(entries_)} {}
s32 channel;
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<std::monostate, SubmitListCommand, SwapBuffersCommand, FlushRegionCommand,
InvalidateRegionCommand, FlushAndInvalidateRegionCommand, OnCommandListEndCommand,
GPUTickCommand>;
struct CommandDataContainer {
CommandDataContainer() = default;
explicit CommandDataContainer(CommandData&& data_, u64 next_fence_, bool block_)
: data{std::move(data_)}, fence{next_fence_}, block(block_) {}
CommandData data;
u64 fence{};
bool block{};
};
/// Struct used to synchronize the GPU thread
struct SynchState final {
using CommandQueue = Common::MPSCQueue<CommandDataContainer, true>;
std::mutex write_lock;
CommandQueue queue;
u64 last_fence{};
std::atomic<u64> signaled_fence{};
std::condition_variable_any cv;
};
/// 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::Control::Scheduler& scheduler);
/// Push GPU command entries to be processed
void SubmitList(s32 channel, 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);
void OnCommandListEnd();
void TickGPU();
private:
/// Pushes a command to be executed by the GPU thread
u64 PushCommand(CommandData&& command_data, bool block = false);
Core::System& system;
const bool is_async;
VideoCore::RasterizerInterface* rasterizer = nullptr;
SynchState state;
std::jthread thread;
};
} // namespace VideoCommon::GPUThread
|
