bf45092c61
General moving to keep kernel object types separate from the direct kernel code. Also essentially a preliminary cleanup before eliminating global kernel state in the kernel code.
233 lines
7.7 KiB
C++
233 lines
7.7 KiB
C++
// Copyright 2014 Citra 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 <array>
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#include <memory>
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#include <string>
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#include <thread>
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#include "common/common_types.h"
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#include "core/arm/exclusive_monitor.h"
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#include "core/core_cpu.h"
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#include "core/hle/kernel/object.h"
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#include "core/hle/kernel/scheduler.h"
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#include "core/loader/loader.h"
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#include "core/memory.h"
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#include "core/perf_stats.h"
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#include "core/telemetry_session.h"
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#include "video_core/debug_utils/debug_utils.h"
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#include "video_core/gpu.h"
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class EmuWindow;
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class ARM_Interface;
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namespace Service::SM {
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class ServiceManager;
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}
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namespace Core {
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class System {
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public:
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~System();
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/**
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* Gets the instance of the System singleton class.
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* @returns Reference to the instance of the System singleton class.
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*/
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static System& GetInstance() {
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return s_instance;
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}
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/// Enumeration representing the return values of the System Initialize and Load process.
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enum class ResultStatus : u32 {
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Success, ///< Succeeded
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ErrorNotInitialized, ///< Error trying to use core prior to initialization
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ErrorGetLoader, ///< Error finding the correct application loader
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ErrorSystemMode, ///< Error determining the system mode
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ErrorLoader, ///< Error loading the specified application
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ErrorLoader_ErrorEncrypted, ///< Error loading the specified application due to encryption
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ErrorLoader_ErrorInvalidFormat, ///< Error loading the specified application due to an
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/// invalid format
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ErrorSystemFiles, ///< Error in finding system files
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ErrorSharedFont, ///< Error in finding shared font
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ErrorVideoCore, ///< Error in the video core
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ErrorUnsupportedArch, ///< Unsupported Architecture (32-Bit ROMs)
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ErrorUnknown ///< Any other error
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};
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/**
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* Run the core CPU loop
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* This function runs the core for the specified number of CPU instructions before trying to
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* update hardware. This is much faster than SingleStep (and should be equivalent), as the CPU
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* is not required to do a full dispatch with each instruction. NOTE: the number of instructions
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* requested is not guaranteed to run, as this will be interrupted preemptively if a hardware
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* update is requested (e.g. on a thread switch).
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* @param tight_loop If false, the CPU single-steps.
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* @return Result status, indicating whether or not the operation succeeded.
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*/
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ResultStatus RunLoop(bool tight_loop = true);
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/**
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* Step the CPU one instruction
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* @return Result status, indicating whether or not the operation succeeded.
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*/
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ResultStatus SingleStep();
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/// Shutdown the emulated system.
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void Shutdown();
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/**
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* Load an executable application.
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* @param emu_window Pointer to the host-system window used for video output and keyboard input.
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* @param filepath String path to the executable application to load on the host file system.
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* @returns ResultStatus code, indicating if the operation succeeded.
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*/
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ResultStatus Load(EmuWindow* emu_window, const std::string& filepath);
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/**
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* Indicates if the emulated system is powered on (all subsystems initialized and able to run an
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* application).
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* @returns True if the emulated system is powered on, otherwise false.
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*/
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bool IsPoweredOn() const {
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return cpu_barrier && cpu_barrier->IsAlive();
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}
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/**
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* Returns a reference to the telemetry session for this emulation session.
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* @returns Reference to the telemetry session.
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*/
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Core::TelemetrySession& TelemetrySession() const {
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return *telemetry_session;
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}
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/// Prepare the core emulation for a reschedule
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void PrepareReschedule();
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/// Gets and resets core performance statistics
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PerfStats::Results GetAndResetPerfStats();
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/// Gets an ARM interface to the CPU core that is currently running
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ARM_Interface& CurrentArmInterface() {
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return CurrentCpuCore().ArmInterface();
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}
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/// Gets the index of the currently running CPU core
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size_t CurrentCoreIndex() {
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return CurrentCpuCore().CoreIndex();
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}
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/// Gets an ARM interface to the CPU core with the specified index
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ARM_Interface& ArmInterface(size_t core_index);
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/// Gets a CPU interface to the CPU core with the specified index
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Cpu& CpuCore(size_t core_index);
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/// Gets the GPU interface
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Tegra::GPU& GPU() {
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return *gpu_core;
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}
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/// Gets the scheduler for the CPU core that is currently running
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Kernel::Scheduler& CurrentScheduler() {
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return *CurrentCpuCore().Scheduler();
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}
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/// Gets the exclusive monitor
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ExclusiveMonitor& Monitor() {
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return *cpu_exclusive_monitor;
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}
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/// Gets the scheduler for the CPU core with the specified index
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const std::shared_ptr<Kernel::Scheduler>& Scheduler(size_t core_index);
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/// Gets the current process
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Kernel::SharedPtr<Kernel::Process>& CurrentProcess() {
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return current_process;
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}
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PerfStats perf_stats;
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FrameLimiter frame_limiter;
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void SetStatus(ResultStatus new_status, const char* details = nullptr) {
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status = new_status;
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if (details) {
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status_details = details;
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}
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}
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const std::string& GetStatusDetails() const {
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return status_details;
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}
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Loader::AppLoader& GetAppLoader() const {
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return *app_loader;
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}
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Service::SM::ServiceManager& ServiceManager();
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const Service::SM::ServiceManager& ServiceManager() const;
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void SetGPUDebugContext(std::shared_ptr<Tegra::DebugContext> context) {
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debug_context = std::move(context);
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}
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std::shared_ptr<Tegra::DebugContext> GetGPUDebugContext() const {
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return debug_context;
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}
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private:
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System();
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/// Returns the currently running CPU core
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Cpu& CurrentCpuCore();
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/**
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* Initialize the emulated system.
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* @param emu_window Pointer to the host-system window used for video output and keyboard input.
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* @param system_mode The system mode.
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* @return ResultStatus code, indicating if the operation succeeded.
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*/
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ResultStatus Init(EmuWindow* emu_window, u32 system_mode);
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/// AppLoader used to load the current executing application
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std::unique_ptr<Loader::AppLoader> app_loader;
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std::unique_ptr<Tegra::GPU> gpu_core;
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std::shared_ptr<Tegra::DebugContext> debug_context;
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Kernel::SharedPtr<Kernel::Process> current_process;
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std::shared_ptr<ExclusiveMonitor> cpu_exclusive_monitor;
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std::shared_ptr<CpuBarrier> cpu_barrier;
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std::array<std::shared_ptr<Cpu>, NUM_CPU_CORES> cpu_cores;
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std::array<std::unique_ptr<std::thread>, NUM_CPU_CORES - 1> cpu_core_threads;
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size_t active_core{}; ///< Active core, only used in single thread mode
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/// Service manager
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std::shared_ptr<Service::SM::ServiceManager> service_manager;
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/// Telemetry session for this emulation session
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std::unique_ptr<Core::TelemetrySession> telemetry_session;
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static System s_instance;
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ResultStatus status = ResultStatus::Success;
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std::string status_details = "";
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/// Map of guest threads to CPU cores
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std::map<std::thread::id, std::shared_ptr<Cpu>> thread_to_cpu;
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};
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inline ARM_Interface& CurrentArmInterface() {
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return System::GetInstance().CurrentArmInterface();
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}
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inline TelemetrySession& Telemetry() {
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return System::GetInstance().TelemetrySession();
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}
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inline Kernel::SharedPtr<Kernel::Process>& CurrentProcess() {
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return System::GetInstance().CurrentProcess();
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}
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} // namespace Core
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