General: Cleanup legacy code.
Fernando Sahmkow
parent
c8bf47dcfb
commit
48fa3b7a0f
@ -1,51 +0,0 @@
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// Copyright 2018 yuzu emulator team
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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 <condition_variable>
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#include <mutex>
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#include "common/logging/log.h"
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#include "core/arm/exclusive_monitor.h"
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#include "core/arm/unicorn/arm_unicorn.h"
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#include "core/core.h"
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#include "core/core_manager.h"
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#include "core/core_timing.h"
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#include "core/hle/kernel/kernel.h"
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#include "core/hle/kernel/physical_core.h"
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#include "core/hle/kernel/scheduler.h"
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#include "core/hle/kernel/thread.h"
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#include "core/hle/lock.h"
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#include "core/settings.h"
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namespace Core {
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CoreManager::CoreManager(System& system, std::size_t core_index)
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: global_scheduler{system.GlobalScheduler()}, physical_core{system.Kernel().PhysicalCore(
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core_index)},
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core_timing{system.CoreTiming()}, core_index{core_index} {}
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CoreManager::~CoreManager() = default;
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void CoreManager::RunLoop(bool tight_loop) {
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/// Deprecated
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}
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void CoreManager::SingleStep() {
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return RunLoop(false);
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}
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void CoreManager::PrepareReschedule() {
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//physical_core.Stop();
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}
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void CoreManager::Reschedule() {
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// Lock the global kernel mutex when we manipulate the HLE state
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std::lock_guard lock(HLE::g_hle_lock);
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// global_scheduler.SelectThread(core_index);
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physical_core.Scheduler().TryDoContextSwitch();
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}
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} // namespace Core
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@ -1,63 +0,0 @@
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// Copyright 2018 yuzu emulator team
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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 <atomic>
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#include <cstddef>
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#include <memory>
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#include "common/common_types.h"
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namespace Kernel {
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class GlobalScheduler;
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class PhysicalCore;
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} // namespace Kernel
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namespace Core {
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class System;
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}
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namespace Core::Timing {
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class CoreTiming;
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}
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namespace Core::Memory {
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class Memory;
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}
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namespace Core {
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constexpr unsigned NUM_CPU_CORES{4};
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class CoreManager {
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public:
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CoreManager(System& system, std::size_t core_index);
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~CoreManager();
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void RunLoop(bool tight_loop = true);
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void SingleStep();
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void PrepareReschedule();
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bool IsMainCore() const {
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return core_index == 0;
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}
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std::size_t CoreIndex() const {
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return core_index;
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}
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private:
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void Reschedule();
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Kernel::GlobalScheduler& global_scheduler;
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Kernel::PhysicalCore& physical_core;
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Timing::CoreTiming& core_timing;
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std::atomic<bool> reschedule_pending = false;
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std::size_t core_index;
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};
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} // namespace Core
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@ -1,206 +0,0 @@
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// Copyright 2020 yuzu 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 "core/host_timing.h"
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#include <algorithm>
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#include <mutex>
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#include <string>
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#include <tuple>
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#include "common/assert.h"
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#include "core/core_timing_util.h"
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namespace Core::HostTiming {
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std::shared_ptr<EventType> CreateEvent(std::string name, TimedCallback&& callback) {
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return std::make_shared<EventType>(std::move(callback), std::move(name));
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}
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struct CoreTiming::Event {
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u64 time;
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u64 fifo_order;
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u64 userdata;
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std::weak_ptr<EventType> type;
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// Sort by time, unless the times are the same, in which case sort by
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// the order added to the queue
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friend bool operator>(const Event& left, const Event& right) {
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return std::tie(left.time, left.fifo_order) > std::tie(right.time, right.fifo_order);
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}
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friend bool operator<(const Event& left, const Event& right) {
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return std::tie(left.time, left.fifo_order) < std::tie(right.time, right.fifo_order);
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}
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};
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CoreTiming::CoreTiming() {
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clock =
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Common::CreateBestMatchingClock(Core::Hardware::BASE_CLOCK_RATE, Core::Hardware::CNTFREQ);
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}
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CoreTiming::~CoreTiming() = default;
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void CoreTiming::ThreadEntry(CoreTiming& instance) {
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instance.ThreadLoop();
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}
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void CoreTiming::Initialize() {
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event_fifo_id = 0;
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const auto empty_timed_callback = [](u64, s64) {};
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ev_lost = CreateEvent("_lost_event", empty_timed_callback);
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timer_thread = std::make_unique<std::thread>(ThreadEntry, std::ref(*this));
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}
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void CoreTiming::Shutdown() {
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paused = true;
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shutting_down = true;
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event.Set();
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timer_thread->join();
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ClearPendingEvents();
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timer_thread.reset();
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has_started = false;
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}
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void CoreTiming::Pause(bool is_paused) {
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paused = is_paused;
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}
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void CoreTiming::SyncPause(bool is_paused) {
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if (is_paused == paused && paused_set == paused) {
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return;
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}
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Pause(is_paused);
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event.Set();
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while (paused_set != is_paused)
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;
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}
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bool CoreTiming::IsRunning() const {
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return !paused_set;
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}
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bool CoreTiming::HasPendingEvents() const {
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return !(wait_set && event_queue.empty());
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}
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void CoreTiming::ScheduleEvent(s64 ns_into_future, const std::shared_ptr<EventType>& event_type,
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u64 userdata) {
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basic_lock.lock();
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const u64 timeout = static_cast<u64>(GetGlobalTimeNs().count() + ns_into_future);
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event_queue.emplace_back(Event{timeout, event_fifo_id++, userdata, event_type});
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std::push_heap(event_queue.begin(), event_queue.end(), std::greater<>());
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basic_lock.unlock();
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event.Set();
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}
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void CoreTiming::UnscheduleEvent(const std::shared_ptr<EventType>& event_type, u64 userdata) {
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basic_lock.lock();
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const auto itr = std::remove_if(event_queue.begin(), event_queue.end(), [&](const Event& e) {
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return e.type.lock().get() == event_type.get() && e.userdata == userdata;
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});
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// Removing random items breaks the invariant so we have to re-establish it.
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if (itr != event_queue.end()) {
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event_queue.erase(itr, event_queue.end());
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std::make_heap(event_queue.begin(), event_queue.end(), std::greater<>());
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}
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basic_lock.unlock();
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}
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void CoreTiming::AddTicks(std::size_t core_index, u64 ticks) {
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ticks_count[core_index] += ticks;
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}
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void CoreTiming::ResetTicks(std::size_t core_index) {
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ticks_count[core_index] = 0;
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}
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u64 CoreTiming::GetCPUTicks() const {
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return clock->GetCPUCycles();
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}
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u64 CoreTiming::GetClockTicks() const {
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return clock->GetClockCycles();
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}
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void CoreTiming::ClearPendingEvents() {
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event_queue.clear();
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}
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void CoreTiming::RemoveEvent(const std::shared_ptr<EventType>& event_type) {
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basic_lock.lock();
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const auto itr = std::remove_if(event_queue.begin(), event_queue.end(), [&](const Event& e) {
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return e.type.lock().get() == event_type.get();
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});
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// Removing random items breaks the invariant so we have to re-establish it.
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if (itr != event_queue.end()) {
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event_queue.erase(itr, event_queue.end());
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std::make_heap(event_queue.begin(), event_queue.end(), std::greater<>());
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}
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basic_lock.unlock();
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}
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std::optional<u64> CoreTiming::Advance() {
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advance_lock.lock();
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basic_lock.lock();
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global_timer = GetGlobalTimeNs().count();
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while (!event_queue.empty() && event_queue.front().time <= global_timer) {
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Event evt = std::move(event_queue.front());
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std::pop_heap(event_queue.begin(), event_queue.end(), std::greater<>());
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event_queue.pop_back();
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basic_lock.unlock();
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if (auto event_type{evt.type.lock()}) {
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event_type->callback(evt.userdata, global_timer - evt.time);
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}
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basic_lock.lock();
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}
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if (!event_queue.empty()) {
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const u64 next_time = event_queue.front().time - global_timer;
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basic_lock.unlock();
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advance_lock.unlock();
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return next_time;
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} else {
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basic_lock.unlock();
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advance_lock.unlock();
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return std::nullopt;
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}
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}
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void CoreTiming::ThreadLoop() {
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has_started = true;
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while (!shutting_down) {
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while (!paused) {
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paused_set = false;
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const auto next_time = Advance();
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if (next_time) {
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std::chrono::nanoseconds next_time_ns = std::chrono::nanoseconds(*next_time);
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event.WaitFor(next_time_ns);
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} else {
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wait_set = true;
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event.Wait();
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}
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wait_set = false;
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}
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paused_set = true;
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}
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}
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std::chrono::nanoseconds CoreTiming::GetGlobalTimeNs() const {
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return clock->GetTimeNS();
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}
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std::chrono::microseconds CoreTiming::GetGlobalTimeUs() const {
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return clock->GetTimeUS();
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}
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} // namespace Core::HostTiming
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@ -1,160 +0,0 @@
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// Copyright 2020 yuzu 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 <atomic>
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#include <chrono>
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#include <functional>
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#include <memory>
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#include <mutex>
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#include <optional>
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#include <string>
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#include <thread>
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#include <vector>
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#include "common/common_types.h"
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#include "common/spin_lock.h"
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#include "common/thread.h"
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#include "common/threadsafe_queue.h"
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#include "common/wall_clock.h"
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#include "core/hardware_properties.h"
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namespace Core::HostTiming {
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/// A callback that may be scheduled for a particular core timing event.
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using TimedCallback = std::function<void(u64 userdata, s64 cycles_late)>;
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/// Contains the characteristics of a particular event.
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struct EventType {
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EventType(TimedCallback&& callback, std::string&& name)
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: callback{std::move(callback)}, name{std::move(name)} {}
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/// The event's callback function.
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TimedCallback callback;
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/// A pointer to the name of the event.
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const std::string name;
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};
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/**
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* This is a system to schedule events into the emulated machine's future. Time is measured
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* in main CPU clock cycles.
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*
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* To schedule an event, you first have to register its type. This is where you pass in the
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* callback. You then schedule events using the type id you get back.
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*
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* The int cyclesLate that the callbacks get is how many cycles late it was.
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* So to schedule a new event on a regular basis:
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* inside callback:
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* ScheduleEvent(periodInCycles - cyclesLate, callback, "whatever")
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*/
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class CoreTiming {
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public:
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CoreTiming();
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~CoreTiming();
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CoreTiming(const CoreTiming&) = delete;
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CoreTiming(CoreTiming&&) = delete;
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CoreTiming& operator=(const CoreTiming&) = delete;
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CoreTiming& operator=(CoreTiming&&) = delete;
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/// CoreTiming begins at the boundary of timing slice -1. An initial call to Advance() is
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/// required to end slice - 1 and start slice 0 before the first cycle of code is executed.
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void Initialize();
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/// Tears down all timing related functionality.
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void Shutdown();
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/// Pauses/Unpauses the execution of the timer thread.
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void Pause(bool is_paused);
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/// Pauses/Unpauses the execution of the timer thread and waits until paused.
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void SyncPause(bool is_paused);
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/// Checks if core timing is running.
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bool IsRunning() const;
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/// Checks if the timer thread has started.
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bool HasStarted() const {
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return has_started;
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}
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/// Checks if there are any pending time events.
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bool HasPendingEvents() const;
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/// Schedules an event in core timing
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void ScheduleEvent(s64 ns_into_future, const std::shared_ptr<EventType>& event_type,
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u64 userdata = 0);
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void UnscheduleEvent(const std::shared_ptr<EventType>& event_type, u64 userdata);
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/// We only permit one event of each type in the queue at a time.
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void RemoveEvent(const std::shared_ptr<EventType>& event_type);
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void AddTicks(std::size_t core_index, u64 ticks);
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void ResetTicks(std::size_t core_index);
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/// Returns current time in emulated CPU cycles
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u64 GetCPUTicks() const;
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/// Returns current time in emulated in Clock cycles
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u64 GetClockTicks() const;
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/// Returns current time in microseconds.
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std::chrono::microseconds GetGlobalTimeUs() const;
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/// Returns current time in nanoseconds.
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std::chrono::nanoseconds GetGlobalTimeNs() const;
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/// Checks for events manually and returns time in nanoseconds for next event, threadsafe.
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std::optional<u64> Advance();
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private:
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struct Event;
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/// Clear all pending events. This should ONLY be done on exit.
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void ClearPendingEvents();
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static void ThreadEntry(CoreTiming& instance);
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void ThreadLoop();
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std::unique_ptr<Common::WallClock> clock;
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u64 global_timer = 0;
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std::chrono::nanoseconds start_point;
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// The queue is a min-heap using std::make_heap/push_heap/pop_heap.
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// We don't use std::priority_queue because we need to be able to serialize, unserialize and
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// erase arbitrary events (RemoveEvent()) regardless of the queue order. These aren't
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// accomodated by the standard adaptor class.
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std::vector<Event> event_queue;
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u64 event_fifo_id = 0;
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std::shared_ptr<EventType> ev_lost;
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Common::Event event{};
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Common::SpinLock basic_lock{};
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Common::SpinLock advance_lock{};
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std::unique_ptr<std::thread> timer_thread;
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std::atomic<bool> paused{};
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std::atomic<bool> paused_set{};
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std::atomic<bool> wait_set{};
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std::atomic<bool> shutting_down{};
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std::atomic<bool> has_started{};
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std::array<std::atomic<u64>, Core::Hardware::NUM_CPU_CORES> ticks_count{};
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};
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/// Creates a core timing event with the given name and callback.
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///
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/// @param name The name of the core timing event to create.
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/// @param callback The callback to execute for the event.
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///
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/// @returns An EventType instance representing the created event.
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///
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std::shared_ptr<EventType> CreateEvent(std::string name, TimedCallback&& callback);
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} // namespace Core::HostTiming
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