early-access version 3440

src/core/core_timing.cpp

@@ -53,7 +53,7 @@ void CoreTiming::ThreadEntry(CoreTiming& instance) {
     static constexpr char name[] = "HostTiming";
     MicroProfileOnThreadCreate(name);
     Common::SetCurrentThreadName(name);
-    Common::SetCurrentThreadPriority(Common::ThreadPriority::Critical);
+    Common::SetCurrentThreadPriority(Common::ThreadPriority::High);
     instance.on_thread_init();
     instance.ThreadLoop();
     MicroProfileOnThreadExit();

src/core/cpu_manager.cpp

@@ -192,7 +192,7 @@ void CpuManager::RunThread(std::stop_token token, std::size_t core) {
     }
     MicroProfileOnThreadCreate(name.c_str());
     Common::SetCurrentThreadName(name.c_str());
-    Common::SetCurrentThreadPriority(Common::ThreadPriority::High);
+    Common::SetCurrentThreadPriority(Common::ThreadPriority::Critical);
     auto& data = core_data[core];
     data.host_context = Common::Fiber::ThreadToFiber();
 

src/core/hle/kernel/k_thread.cpp

@@ -49,6 +49,7 @@ static void ResetThreadContext32(Core::ARM_Interface::ThreadContext32& context,
     context.cpu_registers[0] = arg;
     context.cpu_registers[15] = entry_point;
     context.cpu_registers[13] = stack_top;
+    context.fpscr = 0;
 }
 
 static void ResetThreadContext64(Core::ARM_Interface::ThreadContext64& context, VAddr stack_top,
@@ -58,8 +59,8 @@ static void ResetThreadContext64(Core::ARM_Interface::ThreadContext64& context,
     context.cpu_registers[18] = Kernel::KSystemControl::GenerateRandomU64() | 1;
     context.pc = entry_point;
     context.sp = stack_top;
-    // TODO(merry): Perform a hardware test to determine the below value.
     context.fpcr = 0;
+    context.fpsr = 0;
 }
 } // namespace
 
@@ -815,6 +816,27 @@ void KThread::Continue() {
     KScheduler::OnThreadStateChanged(kernel, this, old_state);
 }
 
+void KThread::CloneFpuStatus() {
+    // We shouldn't reach here when starting kernel threads.
+    ASSERT(this->GetOwnerProcess() != nullptr);
+    ASSERT(this->GetOwnerProcess() == GetCurrentProcessPointer(kernel));
+
+    if (this->GetOwnerProcess()->Is64BitProcess()) {
+        // Clone FPSR and FPCR.
+        ThreadContext64 cur_ctx{};
+        kernel.System().CurrentArmInterface().SaveContext(cur_ctx);
+
+        this->GetContext64().fpcr = cur_ctx.fpcr;
+        this->GetContext64().fpsr = cur_ctx.fpsr;
+    } else {
+        // Clone FPSCR.
+        ThreadContext32 cur_ctx{};
+        kernel.System().CurrentArmInterface().SaveContext(cur_ctx);
+
+        this->GetContext32().fpscr = cur_ctx.fpscr;
+    }
+}
+
 Result KThread::SetActivity(Svc::ThreadActivity activity) {
     // Lock ourselves.
     KScopedLightLock lk(activity_pause_lock);

src/core/hle/kernel/k_thread.h

@@ -254,6 +254,8 @@ public:
         thread_context_32.tpidr = static_cast<u32>(value);
     }
 
+    void CloneFpuStatus();
+
     [[nodiscard]] ThreadContext32& GetContext32() {
         return thread_context_32;
     }

src/core/hle/kernel/svc/svc_thread.cpp

@@ -82,6 +82,9 @@ Result CreateThread(Core::System& system, Handle* out_handle, VAddr entry_point,
     // Commit the thread reservation.
     thread_reservation.Commit();
 
+    // Clone the current fpu status to the new thread.
+    thread->CloneFpuStatus();
+
     // Register the new thread.
     KThread::Register(kernel, thread);
 

src/core/hle/service/hid/controllers/stubbed.cpp

@@ -26,7 +26,7 @@ void Controller_Stubbed::OnUpdate(const Core::Timing::CoreTiming& core_timing) {
     }
 
     CommonHeader header{};
-    header.timestamp = core_timing.GetCPUTicks();
+    header.timestamp = core_timing.GetGlobalTimeNs().count();
     header.total_entry_count = 17;
     header.entry_count = 0;
     header.last_entry_index = 0;

src/core/hle/service/hid/controllers/touchscreen.cpp

@@ -32,7 +32,7 @@ void Controller_Touchscreen::OnInit() {}
 void Controller_Touchscreen::OnRelease() {}
 
 void Controller_Touchscreen::OnUpdate(const Core::Timing::CoreTiming& core_timing) {
-    shared_memory->touch_screen_lifo.timestamp = core_timing.GetCPUTicks();
+    shared_memory->touch_screen_lifo.timestamp = core_timing.GetGlobalTimeNs().count();
 
     if (!IsControllerActivated()) {
         shared_memory->touch_screen_lifo.buffer_count = 0;
@@ -85,7 +85,7 @@ void Controller_Touchscreen::OnUpdate(const Core::Timing::CoreTiming& core_timin
     const auto active_fingers_count =
         static_cast<std::size_t>(std::distance(active_fingers.begin(), end_iter));
 
-    const u64 tick = core_timing.GetCPUTicks();
+    const u64 timestamp = static_cast<u64>(core_timing.GetGlobalTimeNs().count());
     const auto& last_entry = shared_memory->touch_screen_lifo.ReadCurrentEntry().state;
 
     next_state.sampling_number = last_entry.sampling_number + 1;
@@ -102,8 +102,8 @@ void Controller_Touchscreen::OnUpdate(const Core::Timing::CoreTiming& core_timin
             touch_entry.diameter_x = Settings::values.touchscreen.diameter_x;
             touch_entry.diameter_y = Settings::values.touchscreen.diameter_y;
             touch_entry.rotation_angle = Settings::values.touchscreen.rotation_angle;
-            touch_entry.delta_time = tick - active_fingers[id].last_touch;
-            fingers[active_fingers[id].id].last_touch = tick;
+            touch_entry.delta_time = timestamp - active_fingers[id].last_touch;
+            fingers[active_fingers[id].id].last_touch = timestamp;
             touch_entry.finger = active_fingers[id].id;
             touch_entry.attribute.raw = active_fingers[id].attribute.raw;
         } else {