97 lines
2.4 KiB
C++
97 lines
2.4 KiB
C++
// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include <array>
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#include <atomic>
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#include <functional>
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#include <memory>
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#include <thread>
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#include "common/fiber.h"
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#include "common/thread.h"
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#include "core/hardware_properties.h"
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namespace Common {
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class Event;
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class Fiber;
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} // namespace Common
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namespace Core {
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class System;
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class CpuManager {
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public:
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explicit CpuManager(System& system_);
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CpuManager(const CpuManager&) = delete;
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CpuManager(CpuManager&&) = delete;
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~CpuManager();
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CpuManager& operator=(const CpuManager&) = delete;
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CpuManager& operator=(CpuManager&&) = delete;
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/// Sets if emulation is multicore or single core, must be set before Initialize
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void SetMulticore(bool is_multi) {
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is_multicore = is_multi;
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}
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/// Sets if emulation is using an asynchronous GPU.
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void SetAsyncGpu(bool is_async) {
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is_async_gpu = is_async;
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}
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void Initialize();
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void Shutdown();
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static std::function<void(void*)> GetGuestThreadStartFunc();
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static std::function<void(void*)> GetIdleThreadStartFunc();
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static std::function<void(void*)> GetShutdownThreadStartFunc();
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void* GetStartFuncParameter();
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void PreemptSingleCore(bool from_running_enviroment = true);
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std::size_t CurrentCore() const {
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return current_core.load();
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}
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private:
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static void GuestThreadFunction(void* cpu_manager);
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static void GuestRewindFunction(void* cpu_manager);
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static void IdleThreadFunction(void* cpu_manager);
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static void ShutdownThreadFunction(void* cpu_manager);
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void MultiCoreRunGuestThread();
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void MultiCoreRunGuestLoop();
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void MultiCoreRunIdleThread();
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void SingleCoreRunGuestThread();
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void SingleCoreRunGuestLoop();
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void SingleCoreRunIdleThread();
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static void ThreadStart(std::stop_token stop_token, CpuManager& cpu_manager, std::size_t core);
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void ShutdownThread();
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void RunThread(std::size_t core);
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struct CoreData {
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std::shared_ptr<Common::Fiber> host_context;
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std::jthread host_thread;
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};
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std::array<CoreData, Core::Hardware::NUM_CPU_CORES> core_data{};
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bool is_async_gpu{};
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bool is_multicore{};
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std::atomic<std::size_t> current_core{};
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std::size_t idle_count{};
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std::size_t num_cores{};
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static constexpr std::size_t max_cycle_runs = 5;
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System& system;
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};
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} // namespace Core
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