VideoCore: implement channels on gpu caches.

src/video_core/control/scheduler.h

@@ -0,0 +1,38 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <memory>
+#include <mutex>
+#include <unordered_map>
+
+#include "video_core/dma_pusher.h"
+
+namespace Tegra {
+
+class GPU;
+
+namespace Control {
+
+struct ChannelState;
+
+class Scheduler {
+public:
+    Scheduler(GPU& gpu_);
+    ~Scheduler();
+
+    void Push(s32 channel, CommandList&& entries);
+
+    void DeclareChannel(std::shared_ptr<ChannelState> new_channel);
+
+private:
+    std::unordered_map<s32, std::shared_ptr<ChannelState>> channels;
+    std::mutex scheduling_guard;
+    GPU& gpu;
+};
+
+} // namespace Control
+
+} // namespace Tegra