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https://git.eden-emu.dev/eden-emu/eden.git
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112 lines
3.1 KiB
C++
112 lines
3.1 KiB
C++
// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
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// SPDX-License-Identifier: GPL-3.0-or-later
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// 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/polyfill_thread.h"
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#include "common/thread.h"
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#include "core/hardware_properties.h"
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namespace Kernel {
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class KernelCore;
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}
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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 OnGpuReady() {
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gpu_barrier->Sync();
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}
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void Initialize();
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void Shutdown();
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std::function<void()> GetGuestActivateFunc(Kernel::KernelCore& kernel) {
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return [this, &kernel] { GuestActivate(kernel); };
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}
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std::function<void()> GetGuestThreadFunc(Kernel::KernelCore& kernel) {
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return [this, &kernel] { GuestThreadFunction(kernel); };
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}
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std::function<void()> GetIdleThreadStartFunc(Kernel::KernelCore& kernel) {
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return [this, &kernel] { IdleThreadFunction(kernel); };
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}
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std::function<void()> GetShutdownThreadStartFunc(Kernel::KernelCore& kernel) {
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return [this, &kernel] { ShutdownThreadFunction(kernel); };
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}
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void PreemptSingleCore(Kernel::KernelCore& kernel, bool from_running_environment = 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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void GuestThreadFunction(Kernel::KernelCore& kernel);
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void IdleThreadFunction(Kernel::KernelCore& kernel);
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void ShutdownThreadFunction(Kernel::KernelCore& kernel);
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void MultiCoreRunGuestThread(Kernel::KernelCore& kernel);
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void MultiCoreRunIdleThread(Kernel::KernelCore& kernel);
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void SingleCoreRunGuestThread(Kernel::KernelCore& kernel);
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void SingleCoreRunIdleThread(Kernel::KernelCore& kernel);
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void GuestActivate(Kernel::KernelCore& kernel);
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void HandleInterrupt(Kernel::KernelCore& kernel);
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void ShutdownThread(Kernel::KernelCore& kernel);
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void RunThread(std::stop_token stop_token, std::size_t core);
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static constexpr std::size_t max_cycle_runs = 5;
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std::optional<Common::Barrier> gpu_barrier{};
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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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Core::System& system;
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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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bool is_async_gpu{};
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bool is_multicore{};
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};
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} // namespace Core
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