52e83f0d5c
Removes even more usages of the global system instance, trimming away more dependencies on global variables and making them explicit in the interface.
625 lines
21 KiB
C++
625 lines
21 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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#include <array>
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#include <atomic>
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#include <bitset>
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#include <functional>
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#include <memory>
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#include <mutex>
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#include <thread>
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#include <unordered_map>
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#include <utility>
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#include "common/assert.h"
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#include "common/logging/log.h"
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#include "common/microprofile.h"
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#include "common/thread.h"
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#include "core/arm/arm_interface.h"
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#include "core/arm/cpu_interrupt_handler.h"
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#include "core/arm/exclusive_monitor.h"
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#include "core/core.h"
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#include "core/core_timing.h"
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#include "core/core_timing_util.h"
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#include "core/cpu_manager.h"
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#include "core/device_memory.h"
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#include "core/hardware_properties.h"
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#include "core/hle/kernel/client_port.h"
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#include "core/hle/kernel/errors.h"
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#include "core/hle/kernel/handle_table.h"
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#include "core/hle/kernel/kernel.h"
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#include "core/hle/kernel/memory/memory_layout.h"
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#include "core/hle/kernel/memory/memory_manager.h"
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#include "core/hle/kernel/memory/slab_heap.h"
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#include "core/hle/kernel/physical_core.h"
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#include "core/hle/kernel/process.h"
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#include "core/hle/kernel/resource_limit.h"
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#include "core/hle/kernel/scheduler.h"
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#include "core/hle/kernel/shared_memory.h"
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#include "core/hle/kernel/synchronization.h"
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#include "core/hle/kernel/thread.h"
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#include "core/hle/kernel/time_manager.h"
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#include "core/hle/lock.h"
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#include "core/hle/result.h"
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#include "core/memory.h"
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MICROPROFILE_DEFINE(Kernel_SVC, "Kernel", "SVC", MP_RGB(70, 200, 70));
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namespace Kernel {
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struct KernelCore::Impl {
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explicit Impl(Core::System& system, KernelCore& kernel)
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: global_scheduler{kernel}, synchronization{system}, time_manager{system},
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global_handle_table{kernel}, system{system} {}
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void SetMulticore(bool is_multicore) {
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this->is_multicore = is_multicore;
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}
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void Initialize(KernelCore& kernel) {
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Shutdown();
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RegisterHostThread();
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InitializePhysicalCores();
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InitializeSystemResourceLimit(kernel);
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InitializeMemoryLayout();
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InitializePreemption(kernel);
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InitializeSchedulers();
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InitializeSuspendThreads();
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}
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void Shutdown() {
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next_object_id = 0;
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next_kernel_process_id = Process::InitialKIPIDMin;
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next_user_process_id = Process::ProcessIDMin;
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next_thread_id = 1;
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for (std::size_t i = 0; i < Core::Hardware::NUM_CPU_CORES; i++) {
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if (suspend_threads[i]) {
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suspend_threads[i].reset();
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}
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}
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for (std::size_t i = 0; i < cores.size(); i++) {
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cores[i].Shutdown();
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schedulers[i].reset();
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}
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cores.clear();
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registered_core_threads.reset();
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process_list.clear();
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current_process = nullptr;
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system_resource_limit = nullptr;
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global_handle_table.Clear();
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preemption_event = nullptr;
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global_scheduler.Shutdown();
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named_ports.clear();
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for (auto& core : cores) {
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core.Shutdown();
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}
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cores.clear();
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exclusive_monitor.reset();
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host_thread_ids.clear();
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}
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void InitializePhysicalCores() {
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exclusive_monitor =
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Core::MakeExclusiveMonitor(system.Memory(), Core::Hardware::NUM_CPU_CORES);
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for (std::size_t i = 0; i < Core::Hardware::NUM_CPU_CORES; i++) {
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schedulers[i] = std::make_unique<Kernel::Scheduler>(system, i);
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cores.emplace_back(system, i, *schedulers[i], interrupts[i]);
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}
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}
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void InitializeSchedulers() {
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for (std::size_t i = 0; i < Core::Hardware::NUM_CPU_CORES; i++) {
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cores[i].Scheduler().Initialize();
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}
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}
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// Creates the default system resource limit
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void InitializeSystemResourceLimit(KernelCore& kernel) {
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system_resource_limit = ResourceLimit::Create(kernel);
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// If setting the default system values fails, then something seriously wrong has occurred.
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ASSERT(system_resource_limit->SetLimitValue(ResourceType::PhysicalMemory, 0x100000000)
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.IsSuccess());
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ASSERT(system_resource_limit->SetLimitValue(ResourceType::Threads, 800).IsSuccess());
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ASSERT(system_resource_limit->SetLimitValue(ResourceType::Events, 700).IsSuccess());
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ASSERT(system_resource_limit->SetLimitValue(ResourceType::TransferMemory, 200).IsSuccess());
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ASSERT(system_resource_limit->SetLimitValue(ResourceType::Sessions, 900).IsSuccess());
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if (!system_resource_limit->Reserve(ResourceType::PhysicalMemory, 0) ||
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!system_resource_limit->Reserve(ResourceType::PhysicalMemory, 0x60000)) {
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UNREACHABLE();
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}
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}
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void InitializePreemption(KernelCore& kernel) {
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preemption_event = Core::Timing::CreateEvent(
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"PreemptionCallback", [this, &kernel](u64 userdata, s64 cycles_late) {
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{
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SchedulerLock lock(kernel);
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global_scheduler.PreemptThreads();
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}
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s64 time_interval = Core::Timing::msToCycles(std::chrono::milliseconds(10));
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system.CoreTiming().ScheduleEvent(time_interval, preemption_event);
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});
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s64 time_interval = Core::Timing::msToCycles(std::chrono::milliseconds(10));
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system.CoreTiming().ScheduleEvent(time_interval, preemption_event);
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}
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void InitializeSuspendThreads() {
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for (std::size_t i = 0; i < Core::Hardware::NUM_CPU_CORES; i++) {
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std::string name = "Suspend Thread Id:" + std::to_string(i);
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std::function<void(void*)> init_func =
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system.GetCpuManager().GetSuspendThreadStartFunc();
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void* init_func_parameter = system.GetCpuManager().GetStartFuncParamater();
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ThreadType type =
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static_cast<ThreadType>(THREADTYPE_KERNEL | THREADTYPE_HLE | THREADTYPE_SUSPEND);
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auto thread_res = Thread::Create(system, type, name, 0, 0, 0, static_cast<u32>(i), 0,
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nullptr, std::move(init_func), init_func_parameter);
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suspend_threads[i] = std::move(thread_res).Unwrap();
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}
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}
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void MakeCurrentProcess(Process* process) {
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current_process = process;
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if (process == nullptr) {
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return;
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}
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u32 core_id = GetCurrentHostThreadID();
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if (core_id < Core::Hardware::NUM_CPU_CORES) {
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system.Memory().SetCurrentPageTable(*process, core_id);
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}
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}
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void RegisterCoreThread(std::size_t core_id) {
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std::unique_lock lock{register_thread_mutex};
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if (!is_multicore) {
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single_core_thread_id = std::this_thread::get_id();
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}
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const std::thread::id this_id = std::this_thread::get_id();
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const auto it = host_thread_ids.find(this_id);
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ASSERT(core_id < Core::Hardware::NUM_CPU_CORES);
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ASSERT(it == host_thread_ids.end());
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ASSERT(!registered_core_threads[core_id]);
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host_thread_ids[this_id] = static_cast<u32>(core_id);
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registered_core_threads.set(core_id);
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}
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void RegisterHostThread() {
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std::unique_lock lock{register_thread_mutex};
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const std::thread::id this_id = std::this_thread::get_id();
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const auto it = host_thread_ids.find(this_id);
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if (it != host_thread_ids.end()) {
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return;
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}
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host_thread_ids[this_id] = registered_thread_ids++;
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}
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u32 GetCurrentHostThreadID() const {
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const std::thread::id this_id = std::this_thread::get_id();
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if (!is_multicore) {
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if (single_core_thread_id == this_id) {
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return static_cast<u32>(system.GetCpuManager().CurrentCore());
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}
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}
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const auto it = host_thread_ids.find(this_id);
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if (it == host_thread_ids.end()) {
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return Core::INVALID_HOST_THREAD_ID;
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}
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return it->second;
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}
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Core::EmuThreadHandle GetCurrentEmuThreadID() const {
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Core::EmuThreadHandle result = Core::EmuThreadHandle::InvalidHandle();
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result.host_handle = GetCurrentHostThreadID();
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if (result.host_handle >= Core::Hardware::NUM_CPU_CORES) {
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return result;
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}
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const Kernel::Scheduler& sched = cores[result.host_handle].Scheduler();
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const Kernel::Thread* current = sched.GetCurrentThread();
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if (current != nullptr && !current->IsPhantomMode()) {
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result.guest_handle = current->GetGlobalHandle();
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} else {
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result.guest_handle = InvalidHandle;
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}
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return result;
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}
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void InitializeMemoryLayout() {
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// Initialize memory layout
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constexpr Memory::MemoryLayout layout{Memory::MemoryLayout::GetDefaultLayout()};
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constexpr std::size_t hid_size{0x40000};
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constexpr std::size_t font_size{0x1100000};
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constexpr std::size_t irs_size{0x8000};
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constexpr std::size_t time_size{0x1000};
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constexpr PAddr hid_addr{layout.System().StartAddress()};
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constexpr PAddr font_pa{layout.System().StartAddress() + hid_size};
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constexpr PAddr irs_addr{layout.System().StartAddress() + hid_size + font_size};
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constexpr PAddr time_addr{layout.System().StartAddress() + hid_size + font_size + irs_size};
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// Initialize memory manager
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memory_manager = std::make_unique<Memory::MemoryManager>();
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memory_manager->InitializeManager(Memory::MemoryManager::Pool::Application,
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layout.Application().StartAddress(),
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layout.Application().EndAddress());
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memory_manager->InitializeManager(Memory::MemoryManager::Pool::Applet,
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layout.Applet().StartAddress(),
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layout.Applet().EndAddress());
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memory_manager->InitializeManager(Memory::MemoryManager::Pool::System,
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layout.System().StartAddress(),
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layout.System().EndAddress());
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hid_shared_mem = Kernel::SharedMemory::Create(
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system.Kernel(), system.DeviceMemory(), nullptr,
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{hid_addr, hid_size / Memory::PageSize}, Memory::MemoryPermission::None,
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Memory::MemoryPermission::Read, hid_addr, hid_size, "HID:SharedMemory");
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font_shared_mem = Kernel::SharedMemory::Create(
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system.Kernel(), system.DeviceMemory(), nullptr,
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{font_pa, font_size / Memory::PageSize}, Memory::MemoryPermission::None,
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Memory::MemoryPermission::Read, font_pa, font_size, "Font:SharedMemory");
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irs_shared_mem = Kernel::SharedMemory::Create(
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system.Kernel(), system.DeviceMemory(), nullptr,
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{irs_addr, irs_size / Memory::PageSize}, Memory::MemoryPermission::None,
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Memory::MemoryPermission::Read, irs_addr, irs_size, "IRS:SharedMemory");
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time_shared_mem = Kernel::SharedMemory::Create(
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system.Kernel(), system.DeviceMemory(), nullptr,
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{time_addr, time_size / Memory::PageSize}, Memory::MemoryPermission::None,
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Memory::MemoryPermission::Read, time_addr, time_size, "Time:SharedMemory");
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// Allocate slab heaps
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user_slab_heap_pages = std::make_unique<Memory::SlabHeap<Memory::Page>>();
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// Initialize slab heaps
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constexpr u64 user_slab_heap_size{0x3de000};
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user_slab_heap_pages->Initialize(
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system.DeviceMemory().GetPointer(Core::DramMemoryMap::SlabHeapBase),
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user_slab_heap_size);
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}
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std::atomic<u32> next_object_id{0};
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std::atomic<u64> next_kernel_process_id{Process::InitialKIPIDMin};
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std::atomic<u64> next_user_process_id{Process::ProcessIDMin};
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std::atomic<u64> next_thread_id{1};
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// Lists all processes that exist in the current session.
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std::vector<std::shared_ptr<Process>> process_list;
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Process* current_process = nullptr;
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Kernel::GlobalScheduler global_scheduler;
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Kernel::Synchronization synchronization;
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Kernel::TimeManager time_manager;
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std::shared_ptr<ResourceLimit> system_resource_limit;
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std::shared_ptr<Core::Timing::EventType> preemption_event;
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// This is the kernel's handle table or supervisor handle table which
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// stores all the objects in place.
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HandleTable global_handle_table;
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/// Map of named ports managed by the kernel, which can be retrieved using
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/// the ConnectToPort SVC.
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NamedPortTable named_ports;
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std::unique_ptr<Core::ExclusiveMonitor> exclusive_monitor;
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std::vector<Kernel::PhysicalCore> cores;
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// 0-3 IDs represent core threads, >3 represent others
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std::unordered_map<std::thread::id, u32> host_thread_ids;
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u32 registered_thread_ids{Core::Hardware::NUM_CPU_CORES};
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std::bitset<Core::Hardware::NUM_CPU_CORES> registered_core_threads;
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std::mutex register_thread_mutex;
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// Kernel memory management
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std::unique_ptr<Memory::MemoryManager> memory_manager;
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std::unique_ptr<Memory::SlabHeap<Memory::Page>> user_slab_heap_pages;
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// Shared memory for services
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std::shared_ptr<Kernel::SharedMemory> hid_shared_mem;
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std::shared_ptr<Kernel::SharedMemory> font_shared_mem;
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std::shared_ptr<Kernel::SharedMemory> irs_shared_mem;
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std::shared_ptr<Kernel::SharedMemory> time_shared_mem;
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std::array<std::shared_ptr<Thread>, Core::Hardware::NUM_CPU_CORES> suspend_threads{};
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std::array<Core::CPUInterruptHandler, Core::Hardware::NUM_CPU_CORES> interrupts{};
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std::array<std::unique_ptr<Kernel::Scheduler>, Core::Hardware::NUM_CPU_CORES> schedulers{};
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bool is_multicore{};
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std::thread::id single_core_thread_id{};
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std::array<u64, Core::Hardware::NUM_CPU_CORES> svc_ticks{};
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// System context
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Core::System& system;
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};
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KernelCore::KernelCore(Core::System& system) : impl{std::make_unique<Impl>(system, *this)} {}
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KernelCore::~KernelCore() {
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Shutdown();
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}
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void KernelCore::SetMulticore(bool is_multicore) {
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impl->SetMulticore(is_multicore);
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}
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void KernelCore::Initialize() {
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impl->Initialize(*this);
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}
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void KernelCore::Shutdown() {
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impl->Shutdown();
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}
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std::shared_ptr<ResourceLimit> KernelCore::GetSystemResourceLimit() const {
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return impl->system_resource_limit;
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}
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std::shared_ptr<Thread> KernelCore::RetrieveThreadFromGlobalHandleTable(Handle handle) const {
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return impl->global_handle_table.Get<Thread>(handle);
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}
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void KernelCore::AppendNewProcess(std::shared_ptr<Process> process) {
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impl->process_list.push_back(std::move(process));
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}
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void KernelCore::MakeCurrentProcess(Process* process) {
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impl->MakeCurrentProcess(process);
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}
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Process* KernelCore::CurrentProcess() {
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return impl->current_process;
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}
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const Process* KernelCore::CurrentProcess() const {
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return impl->current_process;
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}
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const std::vector<std::shared_ptr<Process>>& KernelCore::GetProcessList() const {
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return impl->process_list;
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}
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Kernel::GlobalScheduler& KernelCore::GlobalScheduler() {
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return impl->global_scheduler;
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}
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const Kernel::GlobalScheduler& KernelCore::GlobalScheduler() const {
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return impl->global_scheduler;
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}
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Kernel::Scheduler& KernelCore::Scheduler(std::size_t id) {
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return *impl->schedulers[id];
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}
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const Kernel::Scheduler& KernelCore::Scheduler(std::size_t id) const {
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return *impl->schedulers[id];
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}
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Kernel::PhysicalCore& KernelCore::PhysicalCore(std::size_t id) {
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return impl->cores[id];
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}
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const Kernel::PhysicalCore& KernelCore::PhysicalCore(std::size_t id) const {
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return impl->cores[id];
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}
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Kernel::PhysicalCore& KernelCore::CurrentPhysicalCore() {
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u32 core_id = impl->GetCurrentHostThreadID();
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ASSERT(core_id < Core::Hardware::NUM_CPU_CORES);
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return impl->cores[core_id];
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}
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const Kernel::PhysicalCore& KernelCore::CurrentPhysicalCore() const {
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u32 core_id = impl->GetCurrentHostThreadID();
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ASSERT(core_id < Core::Hardware::NUM_CPU_CORES);
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return impl->cores[core_id];
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}
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Kernel::Scheduler& KernelCore::CurrentScheduler() {
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u32 core_id = impl->GetCurrentHostThreadID();
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ASSERT(core_id < Core::Hardware::NUM_CPU_CORES);
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return *impl->schedulers[core_id];
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}
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const Kernel::Scheduler& KernelCore::CurrentScheduler() const {
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u32 core_id = impl->GetCurrentHostThreadID();
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ASSERT(core_id < Core::Hardware::NUM_CPU_CORES);
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return *impl->schedulers[core_id];
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}
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std::array<Core::CPUInterruptHandler, Core::Hardware::NUM_CPU_CORES>& KernelCore::Interrupts() {
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return impl->interrupts;
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}
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const std::array<Core::CPUInterruptHandler, Core::Hardware::NUM_CPU_CORES>& KernelCore::Interrupts()
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const {
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return impl->interrupts;
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}
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Kernel::Synchronization& KernelCore::Synchronization() {
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return impl->synchronization;
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}
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const Kernel::Synchronization& KernelCore::Synchronization() const {
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return impl->synchronization;
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}
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Kernel::TimeManager& KernelCore::TimeManager() {
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return impl->time_manager;
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}
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const Kernel::TimeManager& KernelCore::TimeManager() const {
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return impl->time_manager;
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}
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Core::ExclusiveMonitor& KernelCore::GetExclusiveMonitor() {
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return *impl->exclusive_monitor;
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}
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const Core::ExclusiveMonitor& KernelCore::GetExclusiveMonitor() const {
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return *impl->exclusive_monitor;
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}
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void KernelCore::InvalidateAllInstructionCaches() {
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auto& threads = GlobalScheduler().GetThreadList();
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|
for (auto& thread : threads) {
|
|
if (!thread->IsHLEThread()) {
|
|
auto& arm_interface = thread->ArmInterface();
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|
arm_interface.ClearInstructionCache();
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|
}
|
|
}
|
|
}
|
|
|
|
void KernelCore::PrepareReschedule(std::size_t id) {
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|
// TODO: Reimplement, this
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|
}
|
|
|
|
void KernelCore::AddNamedPort(std::string name, std::shared_ptr<ClientPort> port) {
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|
impl->named_ports.emplace(std::move(name), std::move(port));
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|
}
|
|
|
|
KernelCore::NamedPortTable::iterator KernelCore::FindNamedPort(const std::string& name) {
|
|
return impl->named_ports.find(name);
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|
}
|
|
|
|
KernelCore::NamedPortTable::const_iterator KernelCore::FindNamedPort(
|
|
const std::string& name) const {
|
|
return impl->named_ports.find(name);
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|
}
|
|
|
|
bool KernelCore::IsValidNamedPort(NamedPortTable::const_iterator port) const {
|
|
return port != impl->named_ports.cend();
|
|
}
|
|
|
|
u32 KernelCore::CreateNewObjectID() {
|
|
return impl->next_object_id++;
|
|
}
|
|
|
|
u64 KernelCore::CreateNewThreadID() {
|
|
return impl->next_thread_id++;
|
|
}
|
|
|
|
u64 KernelCore::CreateNewKernelProcessID() {
|
|
return impl->next_kernel_process_id++;
|
|
}
|
|
|
|
u64 KernelCore::CreateNewUserProcessID() {
|
|
return impl->next_user_process_id++;
|
|
}
|
|
|
|
Kernel::HandleTable& KernelCore::GlobalHandleTable() {
|
|
return impl->global_handle_table;
|
|
}
|
|
|
|
const Kernel::HandleTable& KernelCore::GlobalHandleTable() const {
|
|
return impl->global_handle_table;
|
|
}
|
|
|
|
void KernelCore::RegisterCoreThread(std::size_t core_id) {
|
|
impl->RegisterCoreThread(core_id);
|
|
}
|
|
|
|
void KernelCore::RegisterHostThread() {
|
|
impl->RegisterHostThread();
|
|
}
|
|
|
|
u32 KernelCore::GetCurrentHostThreadID() const {
|
|
return impl->GetCurrentHostThreadID();
|
|
}
|
|
|
|
Core::EmuThreadHandle KernelCore::GetCurrentEmuThreadID() const {
|
|
return impl->GetCurrentEmuThreadID();
|
|
}
|
|
|
|
Memory::MemoryManager& KernelCore::MemoryManager() {
|
|
return *impl->memory_manager;
|
|
}
|
|
|
|
const Memory::MemoryManager& KernelCore::MemoryManager() const {
|
|
return *impl->memory_manager;
|
|
}
|
|
|
|
Memory::SlabHeap<Memory::Page>& KernelCore::GetUserSlabHeapPages() {
|
|
return *impl->user_slab_heap_pages;
|
|
}
|
|
|
|
const Memory::SlabHeap<Memory::Page>& KernelCore::GetUserSlabHeapPages() const {
|
|
return *impl->user_slab_heap_pages;
|
|
}
|
|
|
|
Kernel::SharedMemory& KernelCore::GetHidSharedMem() {
|
|
return *impl->hid_shared_mem;
|
|
}
|
|
|
|
const Kernel::SharedMemory& KernelCore::GetHidSharedMem() const {
|
|
return *impl->hid_shared_mem;
|
|
}
|
|
|
|
Kernel::SharedMemory& KernelCore::GetFontSharedMem() {
|
|
return *impl->font_shared_mem;
|
|
}
|
|
|
|
const Kernel::SharedMemory& KernelCore::GetFontSharedMem() const {
|
|
return *impl->font_shared_mem;
|
|
}
|
|
|
|
Kernel::SharedMemory& KernelCore::GetIrsSharedMem() {
|
|
return *impl->irs_shared_mem;
|
|
}
|
|
|
|
const Kernel::SharedMemory& KernelCore::GetIrsSharedMem() const {
|
|
return *impl->irs_shared_mem;
|
|
}
|
|
|
|
Kernel::SharedMemory& KernelCore::GetTimeSharedMem() {
|
|
return *impl->time_shared_mem;
|
|
}
|
|
|
|
const Kernel::SharedMemory& KernelCore::GetTimeSharedMem() const {
|
|
return *impl->time_shared_mem;
|
|
}
|
|
|
|
void KernelCore::Suspend(bool in_suspention) {
|
|
const bool should_suspend = exception_exited || in_suspention;
|
|
{
|
|
SchedulerLock lock(*this);
|
|
ThreadStatus status = should_suspend ? ThreadStatus::Ready : ThreadStatus::WaitSleep;
|
|
for (std::size_t i = 0; i < Core::Hardware::NUM_CPU_CORES; i++) {
|
|
impl->suspend_threads[i]->SetStatus(status);
|
|
}
|
|
}
|
|
}
|
|
|
|
bool KernelCore::IsMulticore() const {
|
|
return impl->is_multicore;
|
|
}
|
|
|
|
void KernelCore::ExceptionalExit() {
|
|
exception_exited = true;
|
|
Suspend(true);
|
|
}
|
|
|
|
void KernelCore::EnterSVCProfile() {
|
|
std::size_t core = impl->GetCurrentHostThreadID();
|
|
impl->svc_ticks[core] = MicroProfileEnter(MICROPROFILE_TOKEN(Kernel_SVC));
|
|
}
|
|
|
|
void KernelCore::ExitSVCProfile() {
|
|
std::size_t core = impl->GetCurrentHostThreadID();
|
|
MicroProfileLeave(MICROPROFILE_TOKEN(Kernel_SVC), impl->svc_ticks[core]);
|
|
}
|
|
|
|
} // namespace Kernel
|