2026-09-05 17:30:12

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

src/common/host_memory.cpp

@@ -399,6 +399,10 @@ private:
 // For managarm: see https://github.com/managarm/managarm/issues/1370
 #else // ^^^ Windows ^^^ vvv POSIX vvv
 
+#ifndef MAP_NOCORE
+#define MAP_NOCORE 0
+#endif
+
 #ifdef ARCHITECTURE_arm64
 
 static void* ChooseVirtualBase(size_t virtual_size) {
@@ -423,7 +427,7 @@ static void* ChooseVirtualBase(size_t virtual_size) {
         // Note: we may be able to take advantage of MAP_FIXED_NOREPLACE here.
         void* map_pointer =
             mmap(reinterpret_cast<void*>(hint_address), virtual_size, PROT_READ | PROT_WRITE,
-                 MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE, -1, 0);
+                 MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE | MAP_NOCORE, -1, 0);
 
         // If we successfully mapped, we're done.
         if (reinterpret_cast<uintptr_t>(map_pointer) == hint_address) {
@@ -443,11 +447,11 @@ static void* ChooseVirtualBase(size_t virtual_size) {
 
 static void* ChooseVirtualBase(size_t virtual_size) {
 #if defined(__FreeBSD__) || defined(__DragonFly__) || defined(__OpenBSD__) || defined(__sun__) || defined(__HAIKU__) || defined(__managarm__) || defined(__AIX__)
-    void* virtual_base = mmap(nullptr, virtual_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE | MAP_ALIGNED_SUPER, -1, 0);
+    void* virtual_base = mmap(nullptr, virtual_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE | MAP_ALIGNED_SUPER | MAP_NOCORE, -1, 0);
     if (virtual_base != MAP_FAILED)
         return virtual_base;
 #endif
-    return mmap(nullptr, virtual_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE, -1, 0);
+    return mmap(nullptr, virtual_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE | MAP_NOCORE, -1, 0);
 }
 
 #endif
@@ -541,13 +545,13 @@ public:
         }
         if (use_anon) {
             LOG_WARNING(Common_Memory, "Using private mappings instead of shared ones");
-            backing_base = static_cast<u8*>(mmap(nullptr, backing_size, PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0));
+            backing_base = static_cast<u8*>(mmap(nullptr, backing_size, PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_PRIVATE | MAP_NOCORE, -1, 0));
             if (fd > 0) {
                 fd = -1;
                 close(fd);
             }
         } else {
-            backing_base = static_cast<u8*>(mmap(nullptr, backing_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0));
+            backing_base = static_cast<u8*>(mmap(nullptr, backing_size, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_NOCORE, fd, 0));
         }
         if (backing_base == MAP_FAILED) {
             LOG_CRITICAL(HW_Memory, "mmap failed: {}", strerror(errno));

src/input_common/drivers/mouse.cpp

@@ -4,16 +4,17 @@
 // SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-#include <chrono>
+#include <thread>
 #include <fmt/ranges.h>
 #include <math.h>
 
 #include "common/param_package.h"
 #include "common/settings.h"
-#include "common/steady_clock.h"
+#include "common/thread.h"
 #include "input_common/drivers/mouse.h"
 
 namespace InputCommon {
+constexpr int update_time = 10;
 constexpr float default_panning_sensitivity = 0.0010f;
 constexpr float default_stick_sensitivity = 0.0006f;
 constexpr float default_deadzone_counterweight = 0.01f;
@@ -73,7 +74,7 @@ Mouse::Mouse(std::string input_engine_) : InputEngine(std::move(input_engine_))
     last_motion_change = {};
 }
 
-void Mouse::UpdateStickInput(Common::SteadyClock::time_point timestamp) {
+void Mouse::UpdateStickInput() {
     if (!IsMousePanningEnabled()) {
         return;
     }
@@ -99,9 +100,12 @@ void Mouse::UpdateStickInput(Common::SteadyClock::time_point timestamp) {
     last_mouse_change *= clamped_decay;
 }
 
-void Mouse::UpdateMotionInput(Common::SteadyClock::time_point timestamp) {
-    const float sensitivity = IsMousePanningEnabled() ? default_motion_panning_sensitivity : default_motion_sensitivity;
-    const float rotation_velocity = std::sqrt(last_motion_change.x * last_motion_change.x + last_motion_change.y * last_motion_change.y);
+void Mouse::UpdateMotionInput() {
+    const float sensitivity =
+        IsMousePanningEnabled() ? default_motion_panning_sensitivity : default_motion_sensitivity;
+
+    const float rotation_velocity = std::sqrt(last_motion_change.x * last_motion_change.x +
+                                              last_motion_change.y * last_motion_change.y);
 
     // Clamp rotation speed
     if (rotation_velocity > maximum_rotation_speed / sensitivity) {
@@ -117,7 +121,7 @@ void Mouse::UpdateMotionInput(Common::SteadyClock::time_point timestamp) {
         .accel_x = 0,
         .accel_y = 0,
         .accel_z = 0,
-        .delta_timestamp = u64(std::chrono::duration_cast<std::chrono::microseconds>(timestamp - last_notify_timestamp).count()),
+        .delta_timestamp = update_time * 1000,
     };
 
     if (IsMousePanningEnabled()) {
@@ -173,10 +177,8 @@ void Mouse::Move(int x, int y, int center_x, int center_y) {
 }
 
 void Mouse::NotifyChanged() {
-    auto const timestamp = Common::SteadyClock::Now();
-    UpdateStickInput(timestamp);
-    UpdateMotionInput(timestamp);
-    last_notify_timestamp = Common::SteadyClock::Now();
+    UpdateStickInput();
+    UpdateMotionInput();
 }
 
 void Mouse::MouseMove(f32 touch_x, f32 touch_y) {

src/input_common/drivers/mouse.h

@@ -7,9 +7,7 @@
 #pragma once
 
 #include <thread>
-#include <chrono>
 
-#include "common/steady_clock.h"
 #include "common/polyfill_thread.h"
 #include "common/vector_math.h"
 #include "input_common/input_engine.h"
@@ -103,18 +101,17 @@ public:
     Common::Input::ButtonNames GetUIName(const Common::ParamPackage& params) const override;
 
 private:
-    void UpdateStickInput(Common::SteadyClock::time_point timestamp);
-    void UpdateMotionInput(Common::SteadyClock::time_point timestamp);
+    void UpdateStickInput();
+    void UpdateMotionInput();
     bool IsMousePanningEnabled();
 
     Common::Input::ButtonNames GetUIButtonName(const Common::ParamPackage& params) const;
 
-    Common::Vec2<int> mouse_origin{};
-    Common::Vec2<int> last_mouse_position{};
-    Common::Vec2<float> last_mouse_change{};
-    Common::Vec3<float> last_motion_change{};
-    Common::Vec2<int> wheel_position{};
-    Common::SteadyClock::time_point last_notify_timestamp{};
+    Common::Vec2<int> mouse_origin;
+    Common::Vec2<int> last_mouse_position;
+    Common::Vec2<float> last_mouse_change;
+    Common::Vec3<float> last_motion_change;
+    Common::Vec2<int> wheel_position;
     bool button_pressed = false;
 };
 

src/yuzu/bootmanager.cpp

@@ -538,7 +538,6 @@ void GRenderWindow::mouseReleaseEvent(QMouseEvent* event) {
 }
 
 void GRenderWindow::ConstrainMouse() {
-    input_subsystem->GetMouse()->NotifyChanged(); // required to reset mouse once it's no longer moved
     if (QtCommon::emu_thread == nullptr || !Settings::values.mouse_panning) {
         mouse_constrain_timer.stop();
         return;
@@ -553,12 +552,15 @@ void GRenderWindow::ConstrainMouse() {
         const auto pos = mapFromGlobal(QCursor::pos());
         const int new_pos_x = std::clamp(pos.x(), 0, width());
         const int new_pos_y = std::clamp(pos.y(), 0, height());
+
         QCursor::setPos(mapToGlobal(QPoint{new_pos_x, new_pos_y}));
-    } else {
-        const int center_x = width() / 2;
-        const int center_y = height() / 2;
-        QCursor::setPos(mapToGlobal(QPoint{center_x, center_y}));
+        return;
     }
+
+    const int center_x = width() / 2;
+    const int center_y = height() / 2;
+
+    QCursor::setPos(mapToGlobal(QPoint{center_x, center_y}));
 }
 
 void GRenderWindow::wheelEvent(QWheelEvent* event) {

src/yuzu_cmd/emu_window/emu_window_sdl3.cpp

@@ -37,16 +37,10 @@ EmuWindow_SDL3::EmuWindow_SDL3(InputCommon::InputSubsystem* input_subsystem_, Co
         SDL_SetWindowTitle(this_->render_window, title.c_str());
         return 2000;
     }, this);
-    mouse_timer = SDL_AddTimer(100, [](void *userdata, SDL_TimerID, Uint32) -> Uint32 {
-        auto* this_ = (EmuWindow_SDL3*)userdata;
-        this_->input_subsystem->GetMouse()->NotifyChanged();
-        return 100;
-    }, this);
 }
 
 EmuWindow_SDL3::~EmuWindow_SDL3() {
     SDL_RemoveTimer(titlebar_timer);
-    SDL_RemoveTimer(mouse_timer);
     system.HIDCore().UnloadInputDevices();
     input_subsystem->Shutdown();
     SDL_Quit();

src/yuzu_cmd/emu_window/emu_window_sdl3.h

@@ -84,9 +84,6 @@ protected:
     /// Periodic changer of titlebar (independent of event loop)
     SDL_TimerID titlebar_timer;
 
-    // Mouse resetter once it
-    SDL_TimerID mouse_timer;
-
     /// Is the window still open?
     bool is_open = true;