[core] move event creation to attached Core::System, remove unused atomics/prevent false share on Core::Timing

Signed-off-by: lizzie <lizzie@eden-emu.dev>

src/audio_core/device/device_session.cpp

@@ -19,9 +19,11 @@ using namespace std::literals;
 constexpr auto INCREMENT_TIME{5ms};
 
 DeviceSession::DeviceSession(Core::System& system_)
-    : system{system_}, thread_event{Core::Timing::CreateEvent(
-                           "AudioOutSampleTick",
-                           [this](s64 time, std::chrono::nanoseconds) { return ThreadFunc(); })} {}
+    : system{system_}
+    , thread_event{system_.CreateEvent("AudioOutSampleTick", [this](s64 time, std::chrono::nanoseconds) {
+        return ThreadFunc();
+    })}
+{}
 
 DeviceSession::~DeviceSession() {
     Finalize();

src/core/core.cpp

@@ -968,4 +968,8 @@ void System::ApplySettings() {
     }
 }
 
+std::shared_ptr<Core::Timing::EventType> System::CreateEvent(std::string name, Core::Timing::TimedCallback&& callback) {
+    return std::make_shared<Core::Timing::EventType>(std::move(callback), std::move(name));
+}
+
 } // namespace Core

src/core/core.h

@@ -19,6 +19,7 @@
 #include "core/file_sys/vfs/vfs_types.h"
 #include "core/hle/service/os/event.h"
 #include "core/hle/service/kernel_helpers.h"
+#include "core/core_timing.h"
 
 namespace Core::Frontend {
 class EmuWindow;
@@ -438,6 +439,8 @@ public:
     /// Applies any changes to settings to this core instance.
     void ApplySettings();
 
+    std::shared_ptr<Core::Timing::EventType> CreateEvent(std::string name, Core::Timing::TimedCallback&& callback);
+
 private:
     struct Impl;
     std::unique_ptr<Impl> impl;

src/core/core_timing.cpp

@@ -23,10 +23,6 @@ namespace Core::Timing {
 
 constexpr s64 MAX_SLICE_LENGTH = 10000;
 
-std::shared_ptr<EventType> CreateEvent(std::string name, TimedCallback&& callback) {
-    return std::make_shared<EventType>(std::move(callback), std::move(name));
-}
-
 struct CoreTiming::Event {
     s64 time;
     u64 fifo_order;
@@ -36,11 +32,10 @@ struct CoreTiming::Event {
 
     // Sort by time, unless the times are the same, in which case sort by
     // the order added to the queue
-    friend bool operator>(const Event& left, const Event& right) {
+    friend bool operator>(const Event& left, const Event& right) noexcept {
         return std::tie(left.time, left.fifo_order) > std::tie(right.time, right.fifo_order);
     }
-
-    friend bool operator<(const Event& left, const Event& right) {
+    friend bool operator<(const Event& left, const Event& right) noexcept {
         return std::tie(left.time, left.fifo_order) < std::tie(right.time, right.fifo_order);
     }
 };
@@ -60,8 +55,6 @@ void CoreTiming::Initialize(std::function<void()>&& on_thread_init_) {
             Common::SetCurrentThreadName("HostTiming");
             Common::SetCurrentThreadPriority(Common::ThreadPriority::High);
             on_thread_init();
-            has_started = true;
-
             // base frequency in MHz: 1ns (10^-9) = 1GHz (10^9)
             while (!stop_token.stop_requested()) {
                 while (!paused && !stop_token.stop_requested()) {
@@ -77,8 +70,8 @@ void CoreTiming::Initialize(std::function<void()>&& on_thread_init_) {
                         // continue.
                         wait_set = true;
                         event.Wait();
+                        wait_set = false;
                     }
-                    wait_set = false;
                 }
                 paused_set = true;
                 pause_event.Wait();
@@ -144,39 +137,28 @@ void CoreTiming::ScheduleEvent(std::chrono::nanoseconds ns_into_future,
     event.Set();
 }
 
-void CoreTiming::ScheduleLoopingEvent(std::chrono::nanoseconds start_time,
-                                      std::chrono::nanoseconds resched_time,
-                                      const std::shared_ptr<EventType>& event_type,
-                                      bool absolute_time) {
+void CoreTiming::ScheduleLoopingEvent(std::chrono::nanoseconds start_time, std::chrono::nanoseconds resched_time, const std::shared_ptr<EventType>& event_type, bool absolute_time) {
     {
         std::scoped_lock scope{basic_lock};
         const auto next_time{absolute_time ? start_time : GetGlobalTimeNs() + start_time};
-
-        auto h{event_queue.emplace(
-            Event{next_time.count(), event_fifo_id++, event_type, resched_time.count()})};
+        auto h = event_queue.emplace(Event{next_time.count(), event_fifo_id++, event_type, resched_time.count()});
         (*h).handle = h;
     }
-
     event.Set();
 }
 
-void CoreTiming::UnscheduleEvent(const std::shared_ptr<EventType>& event_type,
-                                 UnscheduleEventType type) {
+void CoreTiming::UnscheduleEvent(const std::shared_ptr<EventType>& event_type, UnscheduleEventType type) {
     {
         std::scoped_lock lk{basic_lock};
-
         std::vector<heap_t::handle_type> to_remove;
-        for (auto itr = event_queue.begin(); itr != event_queue.end(); itr++) {
-            const Event& e = *itr;
+        for (auto it = event_queue.begin(); it != event_queue.end(); it++) {
+            auto const& e = *it;
             if (e.type.lock().get() == event_type.get()) {
-                to_remove.push_back(itr->handle);
+                to_remove.push_back(it->handle);
             }
         }
-
-        for (auto& h : to_remove) {
+        for (auto& h : to_remove)
             event_queue.erase(h);
-        }
-
         event_type->sequence_number++;
     }
 
@@ -187,16 +169,15 @@ void CoreTiming::UnscheduleEvent(const std::shared_ptr<EventType>& event_type,
 }
 
 static u64 GetNextTickCount(u64 next_ticks) {
-    if (Settings::values.use_custom_cpu_ticks.GetValue()) {
+    if (Settings::values.use_custom_cpu_ticks.GetValue())
         return Settings::values.cpu_ticks.GetValue();
-    }
     return next_ticks;
 }
 
 void CoreTiming::AddTicks(u64 ticks_to_add) {
     const u64 ticks = GetNextTickCount(ticks_to_add);
     cpu_ticks += ticks;
-    downcount -= static_cast<s64>(ticks);
+    downcount -= s64(ticks);
 }
 
 void CoreTiming::Idle() {
@@ -270,19 +251,14 @@ std::optional<s64> CoreTiming::Advance() {
                     next_time = pause_end_time + next_schedule_time;
                 }
 
-                event_queue.update(evt.handle, Event{next_time, event_fifo_id++, evt.type,
-                                                     next_schedule_time, evt.handle});
+                event_queue.update(evt.handle, Event{next_time, event_fifo_id++, evt.type, next_schedule_time, evt.handle});
             }
         }
 
         global_timer = GetGlobalTimeNs().count();
     }
 
-    if (!event_queue.empty()) {
-        return event_queue.top().time;
-    } else {
-        return std::nullopt;
-    }
+    return event_queue.empty() ? std::optional<s64>{} : event_queue.top().time;
 }
 
 void CoreTiming::Reset() {
@@ -293,7 +269,6 @@ void CoreTiming::Reset() {
         timer_thread.request_stop();
         timer_thread.join();
     }
-    has_started = false;
 }
 
 /// @brief Returns current time in nanoseconds.
@@ -310,10 +285,4 @@ std::chrono::microseconds CoreTiming::GetGlobalTimeUs() const noexcept {
         : std::chrono::microseconds{Common::WallClock::CPUTickToUS(cpu_ticks)};
 }
 
-#ifdef _WIN32
-void CoreTiming::SetTimerResolutionNs(std::chrono::nanoseconds ns) {
-    timer_resolution_ns = ns.count();
-}
-#endif
-
 } // namespace Core::Timing

src/core/core_timing.h

@@ -29,8 +29,7 @@ using TimedCallback = std::function<std::optional<std::chrono::nanoseconds>(
 
 /// Contains the characteristics of a particular event.
 struct EventType {
-    explicit EventType(TimedCallback&& callback_, std::string&& name_)
-        : callback{std::move(callback_)}, name{std::move(name_)}, sequence_number{0} {}
+    explicit EventType(TimedCallback&& callback_, std::string&& name_) : callback{std::move(callback_)}, name{std::move(name_)}, sequence_number{0} {}
 
     /// The event's callback function.
     TimedCallback callback;
@@ -90,11 +89,6 @@ public:
     /// Checks if core timing is running.
     bool IsRunning() const;
 
-    /// Checks if the timer thread has started.
-    bool HasStarted() const {
-        return has_started;
-    }
-
     /// Checks if there are any pending time events.
     bool HasPendingEvents() const;
 
@@ -134,45 +128,29 @@ public:
     /// Checks for events manually and returns time in nanoseconds for next event, threadsafe.
     std::optional<s64> Advance();
 
-#ifdef _WIN32
-    void SetTimerResolutionNs(std::chrono::nanoseconds ns);
-#endif
-
     struct Event;
 
     void Reset();
 
     using heap_t = boost::heap::fibonacci_heap<CoreTiming::Event, boost::heap::compare<std::greater<>>>;
+    Common::Event event{};
+    Common::Event pause_event{};
+
+    alignas(64) mutable std::mutex basic_lock;
+    alignas(64) std::mutex advance_lock;
+    alignas(64) std::atomic<bool> paused{};
+    alignas(64) std::atomic<bool> paused_set{};
+    alignas(64) std::atomic<bool> wait_set{};
+    std::function<void()> on_thread_init{};
     heap_t event_queue;
+    std::jthread timer_thread;
     s64 global_timer = 0;
-#ifdef _WIN32
-    s64 timer_resolution_ns;
-#endif
     u64 event_fifo_id = 0;
     s64 pause_end_time{};
     /// Cycle timing
     u64 cpu_ticks{};
     s64 downcount{};
-    Common::Event event{};
-    Common::Event pause_event{};
-    std::function<void()> on_thread_init{};
-    std::jthread timer_thread;
-    mutable std::mutex basic_lock;
-    std::mutex advance_lock;
-    std::atomic<bool> paused{};
-    std::atomic<bool> paused_set{};
-    std::atomic<bool> wait_set{};
-    std::atomic<bool> has_started{};
     bool is_multicore{};
 };
 
-/// Creates a core timing event with the given name and callback.
-///
-/// @param name     The name of the core timing event to create.
-/// @param callback The callback to execute for the event.
-///
-/// @returns An EventType instance representing the created event.
-///
-std::shared_ptr<EventType> CreateEvent(std::string name, TimedCallback&& callback);
-
 } // namespace Core::Timing

src/core/hle/kernel/k_hardware_timer.cpp

@@ -13,11 +13,10 @@ namespace Kernel {
 
 void KHardwareTimer::Initialize() {
     // Create the timing callback to register with CoreTiming.
-    m_event_type = Core::Timing::CreateEvent("KHardwareTimer::Callback",
-                                             [this](s64, std::chrono::nanoseconds) {
-                                                 this->DoTask();
-                                                 return std::nullopt;
-                                             });
+    m_event_type = m_kernel.System().CreateEvent("KHardwareTimer::Callback", [this](s64, std::chrono::nanoseconds) {
+        this->DoTask();
+        return std::nullopt;
+    });
 }
 
 void KHardwareTimer::Finalize() {

src/core/hle/kernel/kernel.cpp

@@ -256,7 +256,7 @@ struct KernelCore::Impl {
     }
 
     void InitializePreemption(KernelCore& kernel) {
-        preemption_event = Core::Timing::CreateEvent("PreemptionCallback", [this, &kernel](s64 time, std::chrono::nanoseconds) -> std::optional<std::chrono::nanoseconds> {
+        preemption_event = system.CreateEvent("PreemptionCallback", [this, &kernel](s64 time, std::chrono::nanoseconds) -> std::optional<std::chrono::nanoseconds> {
             {
                 KScopedSchedulerLock lock(kernel);
                 global_scheduler_context->PreemptThreads();

src/core/hle/service/glue/time/alarm_worker.cpp

@@ -22,16 +22,11 @@ AlarmWorker::~AlarmWorker() {
 
 void AlarmWorker::Initialize(std::shared_ptr<Service::PSC::Time::ServiceManager> time_m) {
     m_time_m = std::move(time_m);
-
     m_timer_event = m_ctx.CreateEvent("Glue:AlarmWorker:TimerEvent");
-    m_timer_timing_event = Core::Timing::CreateEvent(
-        "Glue:AlarmWorker::AlarmTimer",
-        [this](s64 time,
-               std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
-            m_timer_event->Signal();
-            return std::nullopt;
-        });
-
+    m_timer_timing_event = m_system.CreateEvent("Glue:AlarmWorker::AlarmTimer", [this](s64 time, std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
+        m_timer_event->Signal();
+        return std::nullopt;
+    });
     AttachToClosestAlarmEvent();
 }
 

src/core/hle/service/glue/time/worker.cpp

@@ -19,28 +19,19 @@ namespace Service::Glue::Time {
 
 TimeWorker::TimeWorker(Core::System& system, StandardSteadyClockResource& steady_clock_resource,
                        FileTimestampWorker& file_timestamp_worker)
-    : m_system{system}, m_ctx{m_system, "Glue:TimeWorker"}, m_event{m_ctx.CreateEvent(
-                                                                "Glue:TimeWorker:Event")},
+    : m_system{system}, m_ctx{m_system, "Glue:TimeWorker"}, m_event{m_ctx.CreateEvent("Glue:TimeWorker:Event")},
       m_steady_clock_resource{steady_clock_resource},
-      m_file_timestamp_worker{file_timestamp_worker}, m_timer_steady_clock{m_ctx.CreateEvent(
-                                                          "Glue:TimeWorker:SteadyClockTimerEvent")},
+      m_file_timestamp_worker{file_timestamp_worker}, m_timer_steady_clock{m_ctx.CreateEvent("Glue:TimeWorker:SteadyClockTimerEvent")},
       m_timer_file_system{m_ctx.CreateEvent("Glue:TimeWorker:FileTimeTimerEvent")},
       m_alarm_worker{m_system, m_steady_clock_resource}, m_pm_state_change_handler{m_alarm_worker} {
-    m_timer_steady_clock_timing_event = Core::Timing::CreateEvent(
-        "Time::SteadyClockEvent",
-        [this](s64 time,
-               std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
-            m_timer_steady_clock->Signal();
-            return std::nullopt;
-        });
-
-    m_timer_file_system_timing_event = Core::Timing::CreateEvent(
-        "Time::SteadyClockEvent",
-        [this](s64 time,
-               std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
-            m_timer_file_system->Signal();
-            return std::nullopt;
-        });
+    m_timer_steady_clock_timing_event = m_system.CreateEvent("Time::SteadyClockEvent", [this](s64 time, std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
+        m_timer_steady_clock->Signal();
+        return std::nullopt;
+    });
+    m_timer_file_system_timing_event = m_system.CreateEvent("Time::SteadyClockEvent", [this](s64 time, std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
+        m_timer_file_system->Signal();
+        return std::nullopt;
+    });
 }
 
 TimeWorker::~TimeWorker() {

src/core/hle/service/hid/hidbus.cpp

@@ -51,17 +51,12 @@ Hidbus::Hidbus(Core::System& system_)
     RegisterHandlers(functions);
 
     // Register update callbacks
-    hidbus_update_event = Core::Timing::CreateEvent(
-        "Hidbus::UpdateCallback",
-        [this](s64 time,
-               std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
-            const auto guard = LockService();
-            UpdateHidbus(ns_late);
-            return std::nullopt;
-        });
-
-    system_.CoreTiming().ScheduleLoopingEvent(hidbus_update_ns, hidbus_update_ns,
-                                              hidbus_update_event);
+    hidbus_update_event = system_.CreateEvent("Hidbus::UpdateCallback", [this](s64 time, std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
+        const auto guard = LockService();
+        UpdateHidbus(ns_late);
+        return std::nullopt;
+    });
+    system_.CoreTiming().ScheduleLoopingEvent(hidbus_update_ns, hidbus_update_ns, hidbus_update_event);
 }
 
 Hidbus::~Hidbus() {

src/core/hle/service/vi/conductor.cpp

@@ -23,25 +23,17 @@ Conductor::Conductor(Core::System& system, Container& container, DisplayList& di
     });
 
     if (system.IsMulticore()) {
-        m_event = Core::Timing::CreateEvent(
-            "ScreenComposition",
-            [this](s64 time,
-                   std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
-                m_signal.Set();
-                return std::chrono::nanoseconds(this->GetNextTicks());
-            });
-
+        m_event = system.CreateEvent("ScreenComposition", [this](s64 time, std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
+            m_signal.Set();
+            return std::chrono::nanoseconds(this->GetNextTicks());
+        });
         system.CoreTiming().ScheduleLoopingEvent(FrameNs, FrameNs, m_event);
         m_thread = std::jthread([this](std::stop_token token) { this->VsyncThread(token); });
     } else {
-        m_event = Core::Timing::CreateEvent(
-            "ScreenComposition",
-            [this](s64 time,
-                   std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
-                this->ProcessVsync();
-                return std::chrono::nanoseconds(this->GetNextTicks());
-            });
-
+        m_event = system.CreateEvent("ScreenComposition", [this](s64 time, std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
+            this->ProcessVsync();
+            return std::chrono::nanoseconds(this->GetNextTicks());
+        });
         system.CoreTiming().ScheduleLoopingEvent(FrameNs, FrameNs, m_event);
     }
 }

src/core/memory/cheat_engine.cpp

@@ -233,12 +233,12 @@ CheatEngine::~CheatEngine() {
 }
 
 void CheatEngine::Initialize() {
-    event = Core::Timing::CreateEvent(
-        "CheatEngine::FrameCallback::" + Common::HexToString(metadata.main_nso_build_id),
-        [this](s64 time, std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
-            FrameCallback(ns_late);
-            return std::nullopt;
-        });
+    event = system.CreateEvent(
+    "CheatEngine::FrameCallback::" + Common::HexToString(metadata.main_nso_build_id),
+    [this](s64 time, std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
+        FrameCallback(ns_late);
+        return std::nullopt;
+    });
     core_timing.ScheduleLoopingEvent(CHEAT_ENGINE_NS, CHEAT_ENGINE_NS, event);
 
     metadata.process_id = system.ApplicationProcess()->GetProcessId();

src/core/tools/freezer.cpp

@@ -52,14 +52,12 @@ void MemoryWriteWidth(Core::Memory::Memory& memory, u32 width, VAddr addr, u64 v
 
 } // Anonymous namespace
 
-Freezer::Freezer(Core::Timing::CoreTiming& core_timing_, Core::Memory::Memory& memory_)
+Freezer::Freezer(Core::System& system_, Core::Timing::CoreTiming& core_timing_, Core::Memory::Memory& memory_)
     : core_timing{core_timing_}, memory{memory_} {
-    event = Core::Timing::CreateEvent("MemoryFreezer::FrameCallback",
-                                      [this](s64 time, std::chrono::nanoseconds ns_late)
-                                          -> std::optional<std::chrono::nanoseconds> {
-                                          FrameCallback(ns_late);
-                                          return std::nullopt;
-                                      });
+    event = system_.CreateEvent("MemoryFreezer::FrameCallback", [this](s64 time, std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
+        FrameCallback(ns_late);
+        return std::nullopt;
+    });
     core_timing.ScheduleEvent(memory_freezer_ns, event);
 }
 

src/core/tools/freezer.h

@@ -11,14 +11,16 @@
 #include <vector>
 #include "common/common_types.h"
 
-namespace Core::Timing {
+namespace Core {
+class System;
+namespace Timing {
 class CoreTiming;
 struct EventType;
 } // namespace Core::Timing
-
-namespace Core::Memory {
+namespace Memory {
 class Memory;
-}
+} //namespace Core::Memory
+} //namespace Core
 
 namespace Tools {
 
@@ -38,7 +40,7 @@ public:
         u64 value;
     };
 
-    explicit Freezer(Core::Timing::CoreTiming& core_timing_, Core::Memory::Memory& memory_);
+    explicit Freezer(Core::System& system_, Core::Timing::CoreTiming& core_timing_, Core::Memory::Memory& memory_);
     ~Freezer();
 
     // Enables or disables the entire memory freezer.

src/hid_core/resource_manager.cpp

@@ -56,33 +56,22 @@ ResourceManager::ResourceManager(Core::System& system_,
     applet_resource = std::make_shared<AppletResource>(system);
 
     // Register update callbacks
-    npad_update_event = Core::Timing::CreateEvent("HID::UpdatePadCallback",
-                                                  [this](s64 time, std::chrono::nanoseconds ns_late)
-                                                      -> std::optional<std::chrono::nanoseconds> {
-                                                      UpdateNpad(ns_late);
-                                                      return std::nullopt;
-                                                  });
-    default_update_event = Core::Timing::CreateEvent(
-        "HID::UpdateDefaultCallback",
-        [this](s64 time,
-               std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
-            UpdateControllers(ns_late);
-            return std::nullopt;
-        });
-    mouse_keyboard_update_event = Core::Timing::CreateEvent(
-        "HID::UpdateMouseKeyboardCallback",
-        [this](s64 time,
-               std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
-            UpdateMouseKeyboard(ns_late);
-            return std::nullopt;
-        });
-    motion_update_event = Core::Timing::CreateEvent(
-        "HID::UpdateMotionCallback",
-        [this](s64 time,
-               std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
-            UpdateMotion(ns_late);
-            return std::nullopt;
-        });
+    npad_update_event = system.CreateEvent("HID::UpdatePadCallback", [this](s64 time, std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
+        UpdateNpad(ns_late);
+        return std::nullopt;
+    });
+    default_update_event = system.CreateEvent("HID::UpdateDefaultCallback", [this](s64 time, std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
+        UpdateControllers(ns_late);
+        return std::nullopt;
+    });
+    mouse_keyboard_update_event = system.CreateEvent("HID::UpdateMouseKeyboardCallback", [this](s64 time, std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
+        UpdateMouseKeyboard(ns_late);
+        return std::nullopt;
+    });
+    motion_update_event = system.CreateEvent("HID::UpdateMotionCallback", [this](s64 time, std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
+        UpdateMotion(ns_late);
+        return std::nullopt;
+    });
 }
 
 ResourceManager::~ResourceManager() {
@@ -267,13 +256,11 @@ void ResourceManager::InitializeTouchScreenSampler() {
     touch_screen = std::make_shared<TouchScreen>(touch_resource);
     gesture = std::make_shared<Gesture>(touch_resource);
 
-    touch_update_event = Core::Timing::CreateEvent(
-        "HID::TouchUpdateCallback",
-        [this](s64 time,
-               std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
-            touch_resource->OnTouchUpdate(time);
-            return std::nullopt;
-        });
+    touch_update_event = system.CreateEvent("HID::TouchUpdateCallback", [this](s64 time,
+            std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
+        touch_resource->OnTouchUpdate(time);
+        return std::nullopt;
+    });
 
     touch_resource->SetTouchDriver(touch_driver);
     touch_resource->SetAppletResource(applet_resource, &shared_mutex);

src/qt_common/qt_common.cpp

@@ -266,12 +266,7 @@ void Init(QWidget* root) {
              Common::GetMemInfo().TotalPhysicalMemory / f64{1_GiB});
     LOG_INFO(Frontend, "Host Swap: {:.2f} GiB", Common::GetMemInfo().TotalSwapMemory / f64{1_GiB});
 #ifdef _WIN32
-    LOG_INFO(Frontend, "Host Timer Resolution: {:.4f} ms",
-             std::chrono::duration_cast<std::chrono::duration<f64, std::milli>>(
-                 Common::Windows::SetCurrentTimerResolutionToMaximum())
-                 .count());
-    QtCommon::system->CoreTiming().SetTimerResolutionNs(
-        Common::Windows::GetCurrentTimerResolution());
+    LOG_INFO(Frontend, "Host Timer Resolution: {:.4f} ms", std::chrono::duration_cast<std::chrono::duration<f64, std::milli>>(Common::Windows::SetCurrentTimerResolutionToMaximum()).count());
 #endif
 
     // Remove cached contents generated during the previous session

src/tests/core/core_timing.cpp

@@ -53,14 +53,15 @@ u64 TestTimerSpeed(Core::Timing::CoreTiming& core_timing) {
 } // Anonymous namespace
 
 TEST_CASE("CoreTiming[BasicOrder]", "[core]") {
+    Core::System system{};
     ScopeInit guard;
     auto& core_timing = guard.core_timing;
     std::vector<std::shared_ptr<Core::Timing::EventType>> events{
-        Core::Timing::CreateEvent("callbackA", HostCallbackTemplate<0>),
-        Core::Timing::CreateEvent("callbackB", HostCallbackTemplate<1>),
-        Core::Timing::CreateEvent("callbackC", HostCallbackTemplate<2>),
-        Core::Timing::CreateEvent("callbackD", HostCallbackTemplate<3>),
-        Core::Timing::CreateEvent("callbackE", HostCallbackTemplate<4>),
+        system.CreateEvent("callbackA", HostCallbackTemplate<0>),
+        system.CreateEvent("callbackB", HostCallbackTemplate<1>),
+        system.CreateEvent("callbackC", HostCallbackTemplate<2>),
+        system.CreateEvent("callbackD", HostCallbackTemplate<3>),
+        system.CreateEvent("callbackE", HostCallbackTemplate<4>),
     };
 
     expected_callback = 0;
@@ -93,14 +94,15 @@ TEST_CASE("CoreTiming[BasicOrder]", "[core]") {
 }
 
 TEST_CASE("CoreTiming[BasicOrderNoPausing]", "[core]") {
+    Core::System system{};
     ScopeInit guard;
     auto& core_timing = guard.core_timing;
     std::vector<std::shared_ptr<Core::Timing::EventType>> events{
-        Core::Timing::CreateEvent("callbackA", HostCallbackTemplate<0>),
-        Core::Timing::CreateEvent("callbackB", HostCallbackTemplate<1>),
-        Core::Timing::CreateEvent("callbackC", HostCallbackTemplate<2>),
-        Core::Timing::CreateEvent("callbackD", HostCallbackTemplate<3>),
-        Core::Timing::CreateEvent("callbackE", HostCallbackTemplate<4>),
+        system.CreateEvent("callbackA", HostCallbackTemplate<0>),
+        system.CreateEvent("callbackB", HostCallbackTemplate<1>),
+        system.CreateEvent("callbackC", HostCallbackTemplate<2>),
+        system.CreateEvent("callbackD", HostCallbackTemplate<3>),
+        system.CreateEvent("callbackE", HostCallbackTemplate<4>),
     };
 
     core_timing.SyncPause(true);

src/yuzu_cmd/yuzu.cpp

@@ -371,7 +371,6 @@ int main(int argc, char** argv) {
 
 #ifdef _WIN32
     Common::Windows::SetCurrentTimerResolutionToMaximum();
-    system.CoreTiming().SetTimerResolutionNs(Common::Windows::GetCurrentTimerResolution());
 #endif
 
     system.SetContentProvider(std::make_unique<FileSys::ContentProviderUnion>());