13 files changed, 606 insertions, 1031 deletions

diff --git a/src/core/device_memory_manager.inc b/src/core/device_memory_manager.inc
index b026f4220..6dfee806c 100644
--- a/src/core/device_memory_manager.inc
+++ b/src/core/device_memory_manager.inc
@@ -532,6 +532,7 @@ void DeviceMemoryManager<Traits>::UpdatePagesCachedCount(DAddr addr, size_t size
             cache_bytes = 0;
         }
     };
+    size_t old_vpage = (base_vaddress >> Memory::YUZU_PAGEBITS) - 1;
     for (; page != page_end; ++page) {
         CounterAtomicType& count = cached_pages->at(page >> subentries_shift).Count(page);
         auto [asid_2, vpage] = ExtractCPUBacking(page);
@@ -547,6 +548,12 @@ void DeviceMemoryManager<Traits>::UpdatePagesCachedCount(DAddr addr, size_t size
             memory_device_inter = registered_processes[asid_2.id];
         }
 
+        if (vpage != old_vpage + 1) [[unlikely]] {
+            release_pending();
+        }
+
+        old_vpage = vpage;
+
         // Adds or subtracts 1, as count is a unsigned 8-bit value
         count.fetch_add(static_cast<CounterType>(delta), std::memory_order_release);
 
diff --git a/src/core/hle/service/cmif_types.h b/src/core/hle/service/cmif_types.h
index 84f4c2456..325304d5c 100644
--- a/src/core/hle/service/cmif_types.h
+++ b/src/core/hle/service/cmif_types.h
@@ -262,7 +262,7 @@ class OutLargeData {
 public:
     static_assert(std::is_trivially_copyable_v<T>, "LargeData type must be trivially copyable");
     static_assert((A & BufferAttr_In) == 0, "OutLargeData attr must not be In");
-    static constexpr BufferAttr Attr = static_cast<BufferAttr>(A | BufferAttr_In | BufferAttr_FixedSize);
+    static constexpr BufferAttr Attr = static_cast<BufferAttr>(A | BufferAttr_Out | BufferAttr_FixedSize);
     using Type = T;
 
     /* implicit */ OutLargeData(const OutLargeData& t) : raw(t.raw) {}
diff --git a/src/core/hle/service/hid/hid.cpp b/src/core/hle/service/hid/hid.cpp
index b60fb9139..1fa9cfbfb 100644
--- a/src/core/hle/service/hid/hid.cpp
+++ b/src/core/hle/service/hid/hid.cpp
@@ -36,7 +36,7 @@ void LoopProcess(Core::System& system) {
     server_manager->RegisterNamedService(
         "hid:sys", std::make_shared<IHidSystemServer>(system, resource_manager, firmware_settings));
 
-    server_manager->RegisterNamedService("hidbus", std::make_shared<HidBus>(system));
+    server_manager->RegisterNamedService("hidbus", std::make_shared<Hidbus>(system));
 
     server_manager->RegisterNamedService("irs", std::make_shared<IRS::IRS>(system));
     server_manager->RegisterNamedService("irs:sys", std::make_shared<IRS::IRS_SYS>(system));
diff --git a/src/core/hle/service/hid/hid_debug_server.cpp b/src/core/hle/service/hid/hid_debug_server.cpp
index 610af34dd..4e2663672 100644
--- a/src/core/hle/service/hid/hid_debug_server.cpp
+++ b/src/core/hle/service/hid/hid_debug_server.cpp
@@ -3,6 +3,7 @@
 
 #include <algorithm>
 
+#include "core/hle/service/cmif_serialization.h"
 #include "core/hle/service/hid/hid_debug_server.h"
 #include "core/hle/service/ipc_helpers.h"
 #include "hid_core/hid_types.h"
@@ -11,7 +12,6 @@
 
 #include "hid_core/resources/touch_screen/gesture.h"
 #include "hid_core/resources/touch_screen/touch_screen.h"
-#include "hid_core/resources/touch_screen/touch_types.h"
 
 namespace Service::HID {
 
@@ -24,14 +24,14 @@ IHidDebugServer::IHidDebugServer(Core::System& system_, std::shared_ptr<Resource
         {0, nullptr, "DeactivateDebugPad"},
         {1, nullptr, "SetDebugPadAutoPilotState"},
         {2, nullptr, "UnsetDebugPadAutoPilotState"},
-        {10, &IHidDebugServer::DeactivateTouchScreen, "DeactivateTouchScreen"},
-        {11, &IHidDebugServer::SetTouchScreenAutoPilotState, "SetTouchScreenAutoPilotState"},
-        {12, &IHidDebugServer::UnsetTouchScreenAutoPilotState, "UnsetTouchScreenAutoPilotState"},
-        {13, &IHidDebugServer::GetTouchScreenConfiguration, "GetTouchScreenConfiguration"},
-        {14, &IHidDebugServer::ProcessTouchScreenAutoTune, "ProcessTouchScreenAutoTune"},
-        {15, &IHidDebugServer::ForceStopTouchScreenManagement, "ForceStopTouchScreenManagement"},
-        {16, &IHidDebugServer::ForceRestartTouchScreenManagement, "ForceRestartTouchScreenManagement"},
-        {17, &IHidDebugServer::IsTouchScreenManaged, "IsTouchScreenManaged"},
+        {10, C<&IHidDebugServer::DeactivateTouchScreen>, "DeactivateTouchScreen"},
+        {11, C<&IHidDebugServer::SetTouchScreenAutoPilotState>, "SetTouchScreenAutoPilotState"},
+        {12, C<&IHidDebugServer::UnsetTouchScreenAutoPilotState>, "UnsetTouchScreenAutoPilotState"},
+        {13, C<&IHidDebugServer::GetTouchScreenConfiguration>, "GetTouchScreenConfiguration"},
+        {14, C<&IHidDebugServer::ProcessTouchScreenAutoTune>, "ProcessTouchScreenAutoTune"},
+        {15, C<&IHidDebugServer::ForceStopTouchScreenManagement>, "ForceStopTouchScreenManagement"},
+        {16, C<&IHidDebugServer::ForceRestartTouchScreenManagement>, "ForceRestartTouchScreenManagement"},
+        {17, C<&IHidDebugServer::IsTouchScreenManaged>, "IsTouchScreenManaged"},
         {20, nullptr, "DeactivateMouse"},
         {21, nullptr, "SetMouseAutoPilotState"},
         {22, nullptr, "UnsetMouseAutoPilotState"},
@@ -47,7 +47,7 @@ IHidDebugServer::IHidDebugServer(Core::System& system_, std::shared_ptr<Resource
         {60, nullptr, "ClearNpadSystemCommonPolicy"},
         {61, nullptr, "DeactivateNpad"},
         {62, nullptr, "ForceDisconnectNpad"},
-        {91, &IHidDebugServer::DeactivateGesture, "DeactivateGesture"},
+        {91, C<&IHidDebugServer::DeactivateGesture>, "DeactivateGesture"},
         {110, nullptr, "DeactivateHomeButton"},
         {111, nullptr, "SetHomeButtonAutoPilotState"},
         {112, nullptr, "UnsetHomeButtonAutoPilotState"},
@@ -160,169 +160,122 @@ IHidDebugServer::IHidDebugServer(Core::System& system_, std::shared_ptr<Resource
 }
 
 IHidDebugServer::~IHidDebugServer() = default;
-void IHidDebugServer::DeactivateTouchScreen(HLERequestContext& ctx) {
-    LOG_INFO(Service_HID, "called");
 
-    Result result = ResultSuccess;
+Result IHidDebugServer::DeactivateTouchScreen() {
+    LOG_INFO(Service_HID, "called");
 
     if (!firmware_settings->IsDeviceManaged()) {
-        result = GetResourceManager()->GetTouchScreen()->Deactivate();
+        R_RETURN(GetResourceManager()->GetTouchScreen()->Deactivate());
     }
 
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(result);
+    R_SUCCEED();
 }
 
-void IHidDebugServer::SetTouchScreenAutoPilotState(HLERequestContext& ctx) {
+Result IHidDebugServer::SetTouchScreenAutoPilotState(
+    InArray<TouchState, BufferAttr_HipcMapAlias> auto_pilot_buffer) {
     AutoPilotState auto_pilot{};
-    auto_pilot.count = ctx.GetReadBufferNumElements<TouchState>();
-    const auto buffer = ctx.ReadBuffer();
 
-    auto_pilot.count = std::min(auto_pilot.count, static_cast<u64>(auto_pilot.state.size()));
-    memcpy(auto_pilot.state.data(), buffer.data(), auto_pilot.count * sizeof(TouchState));
+    auto_pilot.count =
+        static_cast<u64>(std::min(auto_pilot_buffer.size(), auto_pilot.state.size()));
+    memcpy(auto_pilot.state.data(), auto_pilot_buffer.data(),
+           auto_pilot.count * sizeof(TouchState));
 
     LOG_INFO(Service_HID, "called, auto_pilot_count={}", auto_pilot.count);
 
-    const Result result =
-        GetResourceManager()->GetTouchScreen()->SetTouchScreenAutoPilotState(auto_pilot);
-
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(result);
+    R_RETURN(GetResourceManager()->GetTouchScreen()->SetTouchScreenAutoPilotState(auto_pilot));
 }
 
-void IHidDebugServer::UnsetTouchScreenAutoPilotState(HLERequestContext& ctx) {
+Result IHidDebugServer::UnsetTouchScreenAutoPilotState() {
     LOG_INFO(Service_HID, "called");
-
-    const Result result = GetResourceManager()->GetTouchScreen()->UnsetTouchScreenAutoPilotState();
-
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(result);
+    R_RETURN(GetResourceManager()->GetTouchScreen()->UnsetTouchScreenAutoPilotState());
 }
 
-void IHidDebugServer::GetTouchScreenConfiguration(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto applet_resource_user_id{rp.Pop<u64>()};
-
-    LOG_INFO(Service_HID, "called, applet_resource_user_id={}", applet_resource_user_id);
+Result IHidDebugServer::GetTouchScreenConfiguration(
+    Out<Core::HID::TouchScreenConfigurationForNx> out_touchscreen_config,
+    ClientAppletResourceUserId aruid) {
+    LOG_INFO(Service_HID, "called, applet_resource_user_id={}", aruid.pid);
 
-    Core::HID::TouchScreenConfigurationForNx touchscreen_config{};
-    const Result result = GetResourceManager()->GetTouchScreen()->GetTouchScreenConfiguration(
-        touchscreen_config, applet_resource_user_id);
+    R_TRY(GetResourceManager()->GetTouchScreen()->GetTouchScreenConfiguration(
+        *out_touchscreen_config, aruid.pid));
 
-    if (touchscreen_config.mode != Core::HID::TouchScreenModeForNx::Heat2 &&
-        touchscreen_config.mode != Core::HID::TouchScreenModeForNx::Finger) {
-        touchscreen_config.mode = Core::HID::TouchScreenModeForNx::UseSystemSetting;
+    if (out_touchscreen_config->mode != Core::HID::TouchScreenModeForNx::Heat2 &&
+        out_touchscreen_config->mode != Core::HID::TouchScreenModeForNx::Finger) {
+        out_touchscreen_config->mode = Core::HID::TouchScreenModeForNx::UseSystemSetting;
     }
 
-    IPC::ResponseBuilder rb{ctx, 6};
-    rb.Push(result);
-    rb.PushRaw(touchscreen_config);
+    R_SUCCEED();
 }
 
-void IHidDebugServer::ProcessTouchScreenAutoTune(HLERequestContext& ctx) {
+Result IHidDebugServer::ProcessTouchScreenAutoTune() {
     LOG_INFO(Service_HID, "called");
-
-    Result result = GetResourceManager()->GetTouchScreen()->ProcessTouchScreenAutoTune();
-
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(result);
+    R_RETURN(GetResourceManager()->GetTouchScreen()->ProcessTouchScreenAutoTune());
 }
 
-void IHidDebugServer::ForceStopTouchScreenManagement(HLERequestContext& ctx) {
+Result IHidDebugServer::ForceStopTouchScreenManagement() {
     LOG_INFO(Service_HID, "called");
 
     if (!firmware_settings->IsDeviceManaged()) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-        return;
+        R_SUCCEED();
     }
 
-    Result result = ResultSuccess;
-    bool is_touch_active{};
-    bool is_gesture_active{};
     auto touch_screen = GetResourceManager()->GetTouchScreen();
     auto gesture = GetResourceManager()->GetGesture();
 
     if (firmware_settings->IsTouchI2cManaged()) {
-        result = touch_screen->IsActive(is_touch_active);
-        if (result.IsSuccess()) {
-            result = gesture->IsActive(is_gesture_active);
-        }
-        if (result.IsSuccess() && is_touch_active) {
-            result = touch_screen->Deactivate();
+        bool is_touch_active{};
+        bool is_gesture_active{};
+        R_TRY(touch_screen->IsActive(is_touch_active));
+        R_TRY(gesture->IsActive(is_gesture_active));
+
+        if (is_touch_active) {
+            R_TRY(touch_screen->Deactivate());
         }
-        if (result.IsSuccess() && is_gesture_active) {
-            result = gesture->Deactivate();
+        if (is_gesture_active) {
+            R_TRY(gesture->Deactivate());
         }
     }
 
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(result);
+    R_SUCCEED();
 }
 
-void IHidDebugServer::ForceRestartTouchScreenManagement(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    struct Parameters {
-        u32 basic_gesture_id;
-        INSERT_PADDING_WORDS_NOINIT(1);
-        u64 applet_resource_user_id;
-    };
-    static_assert(sizeof(Parameters) == 0x10, "Parameters has incorrect size.");
-
-    const auto parameters{rp.PopRaw<Parameters>()};
-
+Result IHidDebugServer::ForceRestartTouchScreenManagement(u32 basic_gesture_id,
+                                                          ClientAppletResourceUserId aruid) {
     LOG_INFO(Service_HID, "called, basic_gesture_id={}, applet_resource_user_id={}",
-             parameters.basic_gesture_id, parameters.applet_resource_user_id);
+             basic_gesture_id, aruid.pid);
 
-    Result result = ResultSuccess;
     auto touch_screen = GetResourceManager()->GetTouchScreen();
     auto gesture = GetResourceManager()->GetGesture();
 
     if (firmware_settings->IsDeviceManaged() && firmware_settings->IsTouchI2cManaged()) {
-        result = gesture->Activate();
-        if (result.IsSuccess()) {
-            result =
-                gesture->Activate(parameters.applet_resource_user_id, parameters.basic_gesture_id);
-        }
-        if (result.IsSuccess()) {
-            result = touch_screen->Activate();
-        }
-        if (result.IsSuccess()) {
-            result = touch_screen->Activate(parameters.applet_resource_user_id);
-        }
+        R_TRY(gesture->Activate());
+        R_TRY(gesture->Activate(aruid.pid, basic_gesture_id));
+        R_TRY(touch_screen->Activate());
+        R_TRY(touch_screen->Activate(aruid.pid));
     }
 
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(result);
+    R_SUCCEED();
 }
 
-void IHidDebugServer::IsTouchScreenManaged(HLERequestContext& ctx) {
+Result IHidDebugServer::IsTouchScreenManaged(Out<bool> out_is_managed) {
     LOG_INFO(Service_HID, "called");
 
     bool is_touch_active{};
     bool is_gesture_active{};
+    R_TRY(GetResourceManager()->GetTouchScreen()->IsActive(is_touch_active));
+    R_TRY(GetResourceManager()->GetGesture()->IsActive(is_gesture_active));
 
-    Result result = GetResourceManager()->GetTouchScreen()->IsActive(is_touch_active);
-    if (result.IsSuccess()) {
-        result = GetResourceManager()->GetGesture()->IsActive(is_gesture_active);
-    }
-
-    IPC::ResponseBuilder rb{ctx, 3};
-    rb.Push(result);
-    rb.Push(is_touch_active | is_gesture_active);
+    *out_is_managed = is_touch_active || is_gesture_active;
+    R_SUCCEED();
 }
 
-void IHidDebugServer::DeactivateGesture(HLERequestContext& ctx) {
+Result IHidDebugServer::DeactivateGesture() {
     LOG_INFO(Service_HID, "called");
 
-    Result result = ResultSuccess;
-
     if (!firmware_settings->IsDeviceManaged()) {
-        result = GetResourceManager()->GetGesture()->Deactivate();
+        R_RETURN(GetResourceManager()->GetGesture()->Deactivate());
     }
 
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(result);
+    R_SUCCEED();
 }
 
 std::shared_ptr<ResourceManager> IHidDebugServer::GetResourceManager() {
diff --git a/src/core/hle/service/hid/hid_debug_server.h b/src/core/hle/service/hid/hid_debug_server.h
index 7d5b082b3..3a483f07e 100644
--- a/src/core/hle/service/hid/hid_debug_server.h
+++ b/src/core/hle/service/hid/hid_debug_server.h
@@ -3,7 +3,9 @@
 
 #pragma once
 
+#include "core/hle/service/cmif_types.h"
 #include "core/hle/service/service.h"
+#include "hid_core/resources/touch_screen/touch_types.h"
 
 namespace Core {
 class System;
@@ -20,15 +22,19 @@ public:
     ~IHidDebugServer() override;
 
 private:
-    void DeactivateTouchScreen(HLERequestContext& ctx);
-    void SetTouchScreenAutoPilotState(HLERequestContext& ctx);
-    void UnsetTouchScreenAutoPilotState(HLERequestContext& ctx);
-    void GetTouchScreenConfiguration(HLERequestContext& ctx);
-    void ProcessTouchScreenAutoTune(HLERequestContext& ctx);
-    void ForceStopTouchScreenManagement(HLERequestContext& ctx);
-    void ForceRestartTouchScreenManagement(HLERequestContext& ctx);
-    void IsTouchScreenManaged(HLERequestContext& ctx);
-    void DeactivateGesture(HLERequestContext& ctx);
+    Result DeactivateTouchScreen();
+    Result SetTouchScreenAutoPilotState(
+        InArray<TouchState, BufferAttr_HipcMapAlias> auto_pilot_buffer);
+    Result UnsetTouchScreenAutoPilotState();
+    Result GetTouchScreenConfiguration(
+        Out<Core::HID::TouchScreenConfigurationForNx> out_touchscreen_config,
+        ClientAppletResourceUserId aruid);
+    Result ProcessTouchScreenAutoTune();
+    Result ForceStopTouchScreenManagement();
+    Result ForceRestartTouchScreenManagement(u32 basic_gesture_id,
+                                             ClientAppletResourceUserId aruid);
+    Result IsTouchScreenManaged(Out<bool> out_is_managed);
+    Result DeactivateGesture();
 
     std::shared_ptr<ResourceManager> GetResourceManager();
 
diff --git a/src/core/hle/service/hid/hid_system_server.cpp b/src/core/hle/service/hid/hid_system_server.cpp
index 22471e9e2..7126a1dcd 100644
--- a/src/core/hle/service/hid/hid_system_server.cpp
+++ b/src/core/hle/service/hid/hid_system_server.cpp
@@ -508,13 +508,8 @@ void IHidSystemServer::RegisterAppletResourceUserId(HLERequestContext& ctx) {
     Result result = GetResourceManager()->RegisterAppletResourceUserId(
         parameters.applet_resource_user_id, parameters.enable_input);
 
-    if (result.IsSuccess()) {
-        // result = GetResourceManager()->GetNpad()->RegisterAppletResourceUserId(
-        //     parameters.applet_resource_user_id);
-    }
-
     IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultSuccess);
+    rb.Push(result);
 }
 
 void IHidSystemServer::UnregisterAppletResourceUserId(HLERequestContext& ctx) {
@@ -524,8 +519,6 @@ void IHidSystemServer::UnregisterAppletResourceUserId(HLERequestContext& ctx) {
     LOG_INFO(Service_HID, "called, applet_resource_user_id={}", applet_resource_user_id);
 
     GetResourceManager()->UnregisterAppletResourceUserId(applet_resource_user_id);
-    // GetResourceManager()->GetNpad()->UnregisterAppletResourceUserId(applet_resource_user_id);
-    // GetResourceManager()->GetPalma()->UnregisterAppletResourceUserId(applet_resource_user_id);
 
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(ResultSuccess);
diff --git a/src/core/hle/service/hid/hidbus.cpp b/src/core/hle/service/hid/hidbus.cpp
index c903ee8b8..4fb002bc4 100644
--- a/src/core/hle/service/hid/hidbus.cpp
+++ b/src/core/hle/service/hid/hidbus.cpp
@@ -9,6 +9,7 @@
 #include "core/hle/kernel/k_readable_event.h"
 #include "core/hle/kernel/k_shared_memory.h"
 #include "core/hle/kernel/k_transfer_memory.h"
+#include "core/hle/service/cmif_serialization.h"
 #include "core/hle/service/hid/hidbus.h"
 #include "core/hle/service/ipc_helpers.h"
 #include "core/hle/service/service.h"
@@ -22,25 +23,25 @@ namespace Service::HID {
 // (15ms, 66Hz)
 constexpr auto hidbus_update_ns = std::chrono::nanoseconds{15 * 1000 * 1000};
 
-HidBus::HidBus(Core::System& system_)
+Hidbus::Hidbus(Core::System& system_)
     : ServiceFramework{system_, "hidbus"}, service_context{system_, service_name} {
 
     // clang-format off
     static const FunctionInfo functions[] = {
-            {1, &HidBus::GetBusHandle, "GetBusHandle"},
-            {2, &HidBus::IsExternalDeviceConnected, "IsExternalDeviceConnected"},
-            {3, &HidBus::Initialize, "Initialize"},
-            {4, &HidBus::Finalize, "Finalize"},
-            {5, &HidBus::EnableExternalDevice, "EnableExternalDevice"},
-            {6, &HidBus::GetExternalDeviceId, "GetExternalDeviceId"},
-            {7, &HidBus::SendCommandAsync, "SendCommandAsync"},
-            {8, &HidBus::GetSendCommandAsynceResult, "GetSendCommandAsynceResult"},
-            {9, &HidBus::SetEventForSendCommandAsycResult, "SetEventForSendCommandAsycResult"},
-            {10, &HidBus::GetSharedMemoryHandle, "GetSharedMemoryHandle"},
-            {11, &HidBus::EnableJoyPollingReceiveMode, "EnableJoyPollingReceiveMode"},
-            {12, &HidBus::DisableJoyPollingReceiveMode, "DisableJoyPollingReceiveMode"},
+            {1, C<&Hidbus::GetBusHandle>, "GetBusHandle"},
+            {2, C<&Hidbus::IsExternalDeviceConnected>, "IsExternalDeviceConnected"},
+            {3, C<&Hidbus::Initialize>, "Initialize"},
+            {4, C<&Hidbus::Finalize>, "Finalize"},
+            {5, C<&Hidbus::EnableExternalDevice>, "EnableExternalDevice"},
+            {6, C<&Hidbus::GetExternalDeviceId>, "GetExternalDeviceId"},
+            {7, C<&Hidbus::SendCommandAsync>, "SendCommandAsync"},
+            {8, C<&Hidbus::GetSendCommandAsynceResult>, "GetSendCommandAsynceResult"},
+            {9, C<&Hidbus::SetEventForSendCommandAsycResult>, "SetEventForSendCommandAsycResult"},
+            {10, C<&Hidbus::GetSharedMemoryHandle>, "GetSharedMemoryHandle"},
+            {11, C<&Hidbus::EnableJoyPollingReceiveMode>, "EnableJoyPollingReceiveMode"},
+            {12, C<&Hidbus::DisableJoyPollingReceiveMode>, "DisableJoyPollingReceiveMode"},
             {13, nullptr, "GetPollingData"},
-            {14, &HidBus::SetStatusManagerType, "SetStatusManagerType"},
+            {14, C<&Hidbus::SetStatusManagerType>, "SetStatusManagerType"},
     };
     // clang-format on
 
@@ -60,11 +61,11 @@ HidBus::HidBus(Core::System& system_)
                                               hidbus_update_event);
 }
 
-HidBus::~HidBus() {
+Hidbus::~Hidbus() {
     system.CoreTiming().UnscheduleEvent(hidbus_update_event);
 }
 
-void HidBus::UpdateHidbus(std::chrono::nanoseconds ns_late) {
+void Hidbus::UpdateHidbus(std::chrono::nanoseconds ns_late) {
     if (is_hidbus_enabled) {
         for (std::size_t i = 0; i < devices.size(); ++i) {
             if (!devices[i].is_device_initialized) {
@@ -84,7 +85,7 @@ void HidBus::UpdateHidbus(std::chrono::nanoseconds ns_late) {
     }
 }
 
-std::optional<std::size_t> HidBus::GetDeviceIndexFromHandle(BusHandle handle) const {
+std::optional<std::size_t> Hidbus::GetDeviceIndexFromHandle(BusHandle handle) const {
     for (std::size_t i = 0; i < devices.size(); ++i) {
         const auto& device_handle = devices[i].handle;
         if (handle.abstracted_pad_id == device_handle.abstracted_pad_id &&
@@ -98,20 +99,11 @@ std::optional<std::size_t> HidBus::GetDeviceIndexFromHandle(BusHandle handle) co
     return std::nullopt;
 }
 
-void HidBus::GetBusHandle(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    struct Parameters {
-        Core::HID::NpadIdType npad_id;
-        INSERT_PADDING_WORDS_NOINIT(1);
-        BusType bus_type;
-        u64 applet_resource_user_id;
-    };
-    static_assert(sizeof(Parameters) == 0x18, "Parameters has incorrect size.");
-
-    const auto parameters{rp.PopRaw<Parameters>()};
-
-    LOG_INFO(Service_HID, "called, npad_id={}, bus_type={}, applet_resource_user_id={}",
-             parameters.npad_id, parameters.bus_type, parameters.applet_resource_user_id);
+Result Hidbus::GetBusHandle(Out<bool> out_is_valid, Out<BusHandle> out_bus_handle,
+                            Core::HID::NpadIdType npad_id, BusType bus_type,
+                            AppletResourceUserId aruid) {
+    LOG_INFO(Service_HID, "called, npad_id={}, bus_type={}, applet_resource_user_id={}", npad_id,
+             bus_type, aruid.pid);
 
     bool is_handle_found = 0;
     std::size_t handle_index = 0;
@@ -121,8 +113,8 @@ void HidBus::GetBusHandle(HLERequestContext& ctx) {
         if (!handle.is_valid) {
             continue;
         }
-        if (static_cast<Core::HID::NpadIdType>(handle.player_number) == parameters.npad_id &&
-            handle.bus_type_id == static_cast<u8>(parameters.bus_type)) {
+        if (handle.player_number.As<Core::HID::NpadIdType>() == npad_id &&
+            handle.bus_type_id == static_cast<u8>(bus_type)) {
             is_handle_found = true;
             handle_index = i;
             break;
@@ -135,388 +127,231 @@ void HidBus::GetBusHandle(HLERequestContext& ctx) {
             if (devices[i].handle.is_valid) {
                 continue;
             }
-            devices[i].handle = {
-                .abstracted_pad_id = static_cast<u8>(i),
-                .internal_index = static_cast<u8>(i),
-                .player_number = static_cast<u8>(parameters.npad_id),
-                .bus_type_id = static_cast<u8>(parameters.bus_type),
-                .is_valid = true,
-            };
+            devices[i].handle.raw = 0;
+            devices[i].handle.abstracted_pad_id.Assign(i);
+            devices[i].handle.internal_index.Assign(i);
+            devices[i].handle.player_number.Assign(static_cast<u8>(npad_id));
+            devices[i].handle.bus_type_id.Assign(static_cast<u8>(bus_type));
+            devices[i].handle.is_valid.Assign(true);
             handle_index = i;
             break;
         }
     }
 
-    struct OutData {
-        bool is_valid;
-        INSERT_PADDING_BYTES(7);
-        BusHandle handle;
-    };
-    static_assert(sizeof(OutData) == 0x10, "OutData has incorrect size.");
-
-    const OutData out_data{
-        .is_valid = true,
-        .handle = devices[handle_index].handle,
-    };
-
-    IPC::ResponseBuilder rb{ctx, 6};
-    rb.Push(ResultSuccess);
-    rb.PushRaw(out_data);
+    *out_is_valid = true;
+    *out_bus_handle = devices[handle_index].handle;
+    R_SUCCEED();
 }
 
-void HidBus::IsExternalDeviceConnected(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto bus_handle_{rp.PopRaw<BusHandle>()};
-
+Result Hidbus::IsExternalDeviceConnected(Out<bool> out_is_connected, BusHandle bus_handle) {
     LOG_INFO(Service_HID,
              "Called, abstracted_pad_id={}, bus_type={}, internal_index={}, "
              "player_number={}, is_valid={}",
-             bus_handle_.abstracted_pad_id, bus_handle_.bus_type_id, bus_handle_.internal_index,
-             bus_handle_.player_number, bus_handle_.is_valid);
+             bus_handle.abstracted_pad_id, bus_handle.bus_type_id, bus_handle.internal_index,
+             bus_handle.player_number, bus_handle.is_valid);
 
-    const auto device_index = GetDeviceIndexFromHandle(bus_handle_);
+    const auto device_index = GetDeviceIndexFromHandle(bus_handle);
 
-    if (device_index) {
-        const auto& device = devices[device_index.value()].device;
-        const bool is_attached = device->IsDeviceActivated();
+    R_UNLESS(device_index.has_value(), ResultUnknown);
 
-        IPC::ResponseBuilder rb{ctx, 3};
-        rb.Push(ResultSuccess);
-        rb.Push(is_attached);
-        return;
-    }
-
-    LOG_ERROR(Service_HID, "Invalid handle");
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultUnknown);
-    return;
+    *out_is_connected = devices[device_index.value()].device->IsDeviceActivated();
+    R_SUCCEED();
 }
 
-void HidBus::Initialize(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto bus_handle_{rp.PopRaw<BusHandle>()};
-    const auto applet_resource_user_id{rp.Pop<u64>()};
-
+Result Hidbus::Initialize(BusHandle bus_handle, AppletResourceUserId aruid) {
     LOG_INFO(Service_HID,
              "called, abstracted_pad_id={} bus_type={} internal_index={} "
              "player_number={} is_valid={}, applet_resource_user_id={}",
-             bus_handle_.abstracted_pad_id, bus_handle_.bus_type_id, bus_handle_.internal_index,
-             bus_handle_.player_number, bus_handle_.is_valid, applet_resource_user_id);
+             bus_handle.abstracted_pad_id, bus_handle.bus_type_id, bus_handle.internal_index,
+             bus_handle.player_number, bus_handle.is_valid, aruid.pid);
 
     is_hidbus_enabled = true;
 
-    const auto device_index = GetDeviceIndexFromHandle(bus_handle_);
-
-    if (device_index) {
-        const auto entry_index = devices[device_index.value()].handle.internal_index;
-        auto& cur_entry = hidbus_status.entries[entry_index];
-
-        if (bus_handle_.internal_index == 0 && Settings::values.enable_ring_controller) {
-            MakeDevice<RingController>(bus_handle_);
-            devices[device_index.value()].is_device_initialized = true;
-            devices[device_index.value()].device->ActivateDevice();
-            cur_entry.is_in_focus = true;
-            cur_entry.is_connected = true;
-            cur_entry.is_connected_result = ResultSuccess;
-            cur_entry.is_enabled = false;
-            cur_entry.is_polling_mode = false;
-        } else {
-            MakeDevice<HidbusStubbed>(bus_handle_);
-            devices[device_index.value()].is_device_initialized = true;
-            cur_entry.is_in_focus = true;
-            cur_entry.is_connected = false;
-            cur_entry.is_connected_result = ResultSuccess;
-            cur_entry.is_enabled = false;
-            cur_entry.is_polling_mode = false;
-        }
-
-        std::memcpy(system.Kernel().GetHidBusSharedMem().GetPointer(), &hidbus_status,
-                    sizeof(hidbus_status));
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-        return;
-    }
+    const auto device_index = GetDeviceIndexFromHandle(bus_handle);
 
-    LOG_ERROR(Service_HID, "Invalid handle");
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultUnknown);
-    return;
-}
+    R_UNLESS(device_index.has_value(), ResultUnknown);
 
-void HidBus::Finalize(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto bus_handle_{rp.PopRaw<BusHandle>()};
-    const auto applet_resource_user_id{rp.Pop<u64>()};
-
-    LOG_INFO(Service_HID,
-             "called, abstracted_pad_id={}, bus_type={}, internal_index={}, "
-             "player_number={}, is_valid={}, applet_resource_user_id={}",
-             bus_handle_.abstracted_pad_id, bus_handle_.bus_type_id, bus_handle_.internal_index,
-             bus_handle_.player_number, bus_handle_.is_valid, applet_resource_user_id);
-
-    const auto device_index = GetDeviceIndexFromHandle(bus_handle_);
-
-    if (device_index) {
-        const auto entry_index = devices[device_index.value()].handle.internal_index;
-        auto& cur_entry = hidbus_status.entries[entry_index];
-        auto& device = devices[device_index.value()].device;
-        devices[device_index.value()].is_device_initialized = false;
-        device->DeactivateDevice();
+    const auto entry_index = devices[device_index.value()].handle.internal_index;
+    auto& cur_entry = hidbus_status.entries[entry_index];
 
+    if (bus_handle.internal_index == 0 && Settings::values.enable_ring_controller) {
+        MakeDevice<RingController>(bus_handle);
+        devices[device_index.value()].is_device_initialized = true;
+        devices[device_index.value()].device->ActivateDevice();
+        cur_entry.is_in_focus = true;
+        cur_entry.is_connected = true;
+        cur_entry.is_connected_result = ResultSuccess;
+        cur_entry.is_enabled = false;
+        cur_entry.is_polling_mode = false;
+    } else {
+        MakeDevice<HidbusStubbed>(bus_handle);
+        devices[device_index.value()].is_device_initialized = true;
         cur_entry.is_in_focus = true;
         cur_entry.is_connected = false;
         cur_entry.is_connected_result = ResultSuccess;
         cur_entry.is_enabled = false;
         cur_entry.is_polling_mode = false;
-        std::memcpy(system.Kernel().GetHidBusSharedMem().GetPointer(), &hidbus_status,
-                    sizeof(hidbus_status));
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-        return;
     }
 
-    LOG_ERROR(Service_HID, "Invalid handle");
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultUnknown);
-    return;
+    std::memcpy(system.Kernel().GetHidBusSharedMem().GetPointer(), &hidbus_status,
+                sizeof(hidbus_status));
+    R_SUCCEED();
 }
 
-void HidBus::EnableExternalDevice(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    struct Parameters {
-        bool enable;
-        INSERT_PADDING_BYTES_NOINIT(7);
-        BusHandle bus_handle;
-        u64 inval;
-        u64 applet_resource_user_id;
-    };
-    static_assert(sizeof(Parameters) == 0x20, "Parameters has incorrect size.");
-
-    const auto parameters{rp.PopRaw<Parameters>()};
+Result Hidbus::Finalize(BusHandle bus_handle, AppletResourceUserId aruid) {
+    LOG_INFO(Service_HID,
+             "called, abstracted_pad_id={}, bus_type={}, internal_index={}, "
+             "player_number={}, is_valid={}, applet_resource_user_id={}",
+             bus_handle.abstracted_pad_id, bus_handle.bus_type_id, bus_handle.internal_index,
+             bus_handle.player_number, bus_handle.is_valid, aruid.pid);
+
+    const auto device_index = GetDeviceIndexFromHandle(bus_handle);
+
+    R_UNLESS(device_index.has_value(), ResultUnknown);
+
+    const auto entry_index = devices[device_index.value()].handle.internal_index;
+    auto& cur_entry = hidbus_status.entries[entry_index];
+    auto& device = devices[device_index.value()].device;
+    devices[device_index.value()].is_device_initialized = false;
+    device->DeactivateDevice();
+
+    cur_entry.is_in_focus = true;
+    cur_entry.is_connected = false;
+    cur_entry.is_connected_result = ResultSuccess;
+    cur_entry.is_enabled = false;
+    cur_entry.is_polling_mode = false;
+    std::memcpy(system.Kernel().GetHidBusSharedMem().GetPointer(), &hidbus_status,
+                sizeof(hidbus_status));
+    R_SUCCEED();
+}
 
+Result Hidbus::EnableExternalDevice(bool is_enabled, BusHandle bus_handle, u64 inval,
+                                    AppletResourceUserId aruid) {
     LOG_DEBUG(Service_HID,
               "called, enable={}, abstracted_pad_id={}, bus_type={}, internal_index={}, "
               "player_number={}, is_valid={}, inval={}, applet_resource_user_id{}",
-              parameters.enable, parameters.bus_handle.abstracted_pad_id,
-              parameters.bus_handle.bus_type_id, parameters.bus_handle.internal_index,
-              parameters.bus_handle.player_number, parameters.bus_handle.is_valid, parameters.inval,
-              parameters.applet_resource_user_id);
-
-    const auto device_index = GetDeviceIndexFromHandle(parameters.bus_handle);
-
-    if (device_index) {
-        auto& device = devices[device_index.value()].device;
-        device->Enable(parameters.enable);
+              is_enabled, bus_handle.abstracted_pad_id, bus_handle.bus_type_id,
+              bus_handle.internal_index, bus_handle.player_number, bus_handle.is_valid, inval,
+              aruid.pid);
 
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-        return;
-    }
+    const auto device_index = GetDeviceIndexFromHandle(bus_handle);
 
-    LOG_ERROR(Service_HID, "Invalid handle");
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultUnknown);
-    return;
+    R_UNLESS(device_index.has_value(), ResultUnknown);
+    devices[device_index.value()].device->Enable(is_enabled);
+    R_SUCCEED();
 }
 
-void HidBus::GetExternalDeviceId(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto bus_handle_{rp.PopRaw<BusHandle>()};
-
+Result Hidbus::GetExternalDeviceId(Out<u32> out_device_id, BusHandle bus_handle) {
     LOG_DEBUG(Service_HID,
               "called, abstracted_pad_id={}, bus_type={}, internal_index={}, player_number={}, "
               "is_valid={}",
-              bus_handle_.abstracted_pad_id, bus_handle_.bus_type_id, bus_handle_.internal_index,
-              bus_handle_.player_number, bus_handle_.is_valid);
-
-    const auto device_index = GetDeviceIndexFromHandle(bus_handle_);
-
-    if (device_index) {
-        const auto& device = devices[device_index.value()].device;
-        u32 device_id = device->GetDeviceId();
-        IPC::ResponseBuilder rb{ctx, 3};
-        rb.Push(ResultSuccess);
-        rb.Push<u32>(device_id);
-        return;
-    }
+              bus_handle.abstracted_pad_id, bus_handle.bus_type_id, bus_handle.internal_index,
+              bus_handle.player_number, bus_handle.is_valid);
 
-    LOG_ERROR(Service_HID, "Invalid handle");
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultUnknown);
-    return;
-}
+    const auto device_index = GetDeviceIndexFromHandle(bus_handle);
 
-void HidBus::SendCommandAsync(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto data = ctx.ReadBuffer();
-    const auto bus_handle_{rp.PopRaw<BusHandle>()};
+    R_UNLESS(device_index.has_value(), ResultUnknown);
 
+    *out_device_id = devices[device_index.value()].device->GetDeviceId();
+    R_SUCCEED();
+}
+
+Result Hidbus::SendCommandAsync(BusHandle bus_handle,
+                                InBuffer<BufferAttr_HipcAutoSelect> buffer_data) {
     LOG_DEBUG(Service_HID,
               "called, data_size={}, abstracted_pad_id={}, bus_type={}, internal_index={}, "
               "player_number={}, is_valid={}",
-              data.size(), bus_handle_.abstracted_pad_id, bus_handle_.bus_type_id,
-              bus_handle_.internal_index, bus_handle_.player_number, bus_handle_.is_valid);
+              buffer_data.size(), bus_handle.abstracted_pad_id, bus_handle.bus_type_id,
+              bus_handle.internal_index, bus_handle.player_number, bus_handle.is_valid);
 
-    const auto device_index = GetDeviceIndexFromHandle(bus_handle_);
+    const auto device_index = GetDeviceIndexFromHandle(bus_handle);
 
-    if (device_index) {
-        auto& device = devices[device_index.value()].device;
-        device->SetCommand(data);
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-        return;
-    }
+    R_UNLESS(device_index.has_value(), ResultUnknown);
 
-    LOG_ERROR(Service_HID, "Invalid handle");
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultUnknown);
-    return;
+    devices[device_index.value()].device->SetCommand(buffer_data);
+    R_SUCCEED();
 };
 
-void HidBus::GetSendCommandAsynceResult(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto bus_handle_{rp.PopRaw<BusHandle>()};
-
+Result Hidbus::GetSendCommandAsynceResult(Out<u64> out_data_size, BusHandle bus_handle,
+                                          OutBuffer<BufferAttr_HipcAutoSelect> out_buffer_data) {
     LOG_DEBUG(Service_HID,
               "called, abstracted_pad_id={}, bus_type={}, internal_index={}, player_number={}, "
               "is_valid={}",
-              bus_handle_.abstracted_pad_id, bus_handle_.bus_type_id, bus_handle_.internal_index,
-              bus_handle_.player_number, bus_handle_.is_valid);
-
-    const auto device_index = GetDeviceIndexFromHandle(bus_handle_);
+              bus_handle.abstracted_pad_id, bus_handle.bus_type_id, bus_handle.internal_index,
+              bus_handle.player_number, bus_handle.is_valid);
 
-    if (device_index) {
-        const auto& device = devices[device_index.value()].device;
-        const std::vector<u8> data = device->GetReply();
-        const u64 data_size = ctx.WriteBuffer(data);
+    const auto device_index = GetDeviceIndexFromHandle(bus_handle);
 
-        IPC::ResponseBuilder rb{ctx, 4};
-        rb.Push(ResultSuccess);
-        rb.Push<u64>(data_size);
-        return;
-    }
+    R_UNLESS(device_index.has_value(), ResultUnknown);
 
-    LOG_ERROR(Service_HID, "Invalid handle");
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultUnknown);
-    return;
+    *out_data_size = devices[device_index.value()].device->GetReply(out_buffer_data);
+    R_SUCCEED();
 };
 
-void HidBus::SetEventForSendCommandAsycResult(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto bus_handle_{rp.PopRaw<BusHandle>()};
-
+Result Hidbus::SetEventForSendCommandAsycResult(OutCopyHandle<Kernel::KReadableEvent> out_event,
+                                                BusHandle bus_handle) {
     LOG_INFO(Service_HID,
              "called, abstracted_pad_id={}, bus_type={}, internal_index={}, player_number={}, "
              "is_valid={}",
-             bus_handle_.abstracted_pad_id, bus_handle_.bus_type_id, bus_handle_.internal_index,
-             bus_handle_.player_number, bus_handle_.is_valid);
+             bus_handle.abstracted_pad_id, bus_handle.bus_type_id, bus_handle.internal_index,
+             bus_handle.player_number, bus_handle.is_valid);
 
-    const auto device_index = GetDeviceIndexFromHandle(bus_handle_);
+    const auto device_index = GetDeviceIndexFromHandle(bus_handle);
 
-    if (device_index) {
-        const auto& device = devices[device_index.value()].device;
-        IPC::ResponseBuilder rb{ctx, 2, 1};
-        rb.Push(ResultSuccess);
-        rb.PushCopyObjects(device->GetSendCommandAsycEvent());
-        return;
-    }
+    R_UNLESS(device_index.has_value(), ResultUnknown);
 
-    LOG_ERROR(Service_HID, "Invalid handle");
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultUnknown);
-    return;
+    *out_event = &devices[device_index.value()].device->GetSendCommandAsycEvent();
+    R_SUCCEED();
 };
 
-void HidBus::GetSharedMemoryHandle(HLERequestContext& ctx) {
+Result Hidbus::GetSharedMemoryHandle(OutCopyHandle<Kernel::KSharedMemory> out_shared_memory) {
     LOG_DEBUG(Service_HID, "called");
 
-    IPC::ResponseBuilder rb{ctx, 2, 1};
-    rb.Push(ResultSuccess);
-    rb.PushCopyObjects(&system.Kernel().GetHidBusSharedMem());
+    *out_shared_memory = &system.Kernel().GetHidBusSharedMem();
+    R_SUCCEED();
 }
 
-void HidBus::EnableJoyPollingReceiveMode(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto t_mem_size{rp.Pop<u32>()};
-    const auto t_mem_handle{ctx.GetCopyHandle(0)};
-    const auto polling_mode_{rp.PopEnum<JoyPollingMode>()};
-    const auto bus_handle_{rp.PopRaw<BusHandle>()};
-
+Result Hidbus::EnableJoyPollingReceiveMode(u32 t_mem_size, JoyPollingMode polling_mode,
+                                           BusHandle bus_handle,
+                                           InCopyHandle<Kernel::KTransferMemory> t_mem) {
     ASSERT_MSG(t_mem_size == 0x1000, "t_mem_size is not 0x1000 bytes");
-
-    auto t_mem = ctx.GetObjectFromHandle<Kernel::KTransferMemory>(t_mem_handle);
-
-    if (t_mem.IsNull()) {
-        LOG_ERROR(Service_HID, "t_mem is a nullptr for handle=0x{:08X}", t_mem_handle);
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultUnknown);
-        return;
-    }
-
-    ASSERT_MSG(t_mem->GetSize() == 0x1000, "t_mem has incorrect size");
+    ASSERT_MSG(t_mem->GetSize() == t_mem_size, "t_mem has incorrect size");
 
     LOG_INFO(Service_HID,
-             "called, t_mem_handle=0x{:08X}, polling_mode={}, abstracted_pad_id={}, bus_type={}, "
+             "called, polling_mode={}, abstracted_pad_id={}, bus_type={}, "
              "internal_index={}, player_number={}, is_valid={}",
-             t_mem_handle, polling_mode_, bus_handle_.abstracted_pad_id, bus_handle_.bus_type_id,
-             bus_handle_.internal_index, bus_handle_.player_number, bus_handle_.is_valid);
+             polling_mode, bus_handle.abstracted_pad_id, bus_handle.bus_type_id,
+             bus_handle.internal_index, bus_handle.player_number, bus_handle.is_valid);
 
-    const auto device_index = GetDeviceIndexFromHandle(bus_handle_);
+    const auto device_index = GetDeviceIndexFromHandle(bus_handle);
 
-    if (device_index) {
-        auto& device = devices[device_index.value()].device;
-        device->SetPollingMode(polling_mode_);
-        device->SetTransferMemoryAddress(t_mem->GetSourceAddress());
+    R_UNLESS(device_index.has_value(), ResultUnknown);
 
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-        return;
-    }
-
-    LOG_ERROR(Service_HID, "Invalid handle");
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultUnknown);
-    return;
+    auto& device = devices[device_index.value()].device;
+    device->SetPollingMode(polling_mode);
+    device->SetTransferMemoryAddress(t_mem->GetSourceAddress());
+    R_SUCCEED();
 }
 
-void HidBus::DisableJoyPollingReceiveMode(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto bus_handle_{rp.PopRaw<BusHandle>()};
-
+Result Hidbus::DisableJoyPollingReceiveMode(BusHandle bus_handle) {
     LOG_INFO(Service_HID,
              "called, abstracted_pad_id={}, bus_type={}, internal_index={}, player_number={}, "
              "is_valid={}",
-             bus_handle_.abstracted_pad_id, bus_handle_.bus_type_id, bus_handle_.internal_index,
-             bus_handle_.player_number, bus_handle_.is_valid);
+             bus_handle.abstracted_pad_id, bus_handle.bus_type_id, bus_handle.internal_index,
+             bus_handle.player_number, bus_handle.is_valid);
 
-    const auto device_index = GetDeviceIndexFromHandle(bus_handle_);
+    const auto device_index = GetDeviceIndexFromHandle(bus_handle);
 
-    if (device_index) {
-        auto& device = devices[device_index.value()].device;
-        device->DisablePollingMode();
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-        return;
-    }
+    R_UNLESS(device_index.has_value(), ResultUnknown);
 
-    LOG_ERROR(Service_HID, "Invalid handle");
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultUnknown);
-    return;
+    auto& device = devices[device_index.value()].device;
+    device->DisablePollingMode();
+    R_SUCCEED();
 }
 
-void HidBus::SetStatusManagerType(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto manager_type{rp.PopEnum<StatusManagerType>()};
-
+Result Hidbus::SetStatusManagerType(StatusManagerType manager_type) {
     LOG_WARNING(Service_HID, "(STUBBED) called, manager_type={}", manager_type);
-
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultSuccess);
+    R_SUCCEED();
 };
+
 } // namespace Service::HID
diff --git a/src/core/hle/service/hid/hidbus.h b/src/core/hle/service/hid/hidbus.h
index 03d9f6863..af4d95667 100644
--- a/src/core/hle/service/hid/hidbus.h
+++ b/src/core/hle/service/hid/hidbus.h
@@ -5,8 +5,10 @@
 
 #include <functional>
 
+#include "core/hle/service/cmif_types.h"
 #include "core/hle/service/kernel_helpers.h"
 #include "core/hle/service/service.h"
+#include "hid_core/hid_types.h"
 #include "hid_core/hidbus/hidbus_base.h"
 
 namespace Core::Timing {
@@ -19,10 +21,10 @@ class System;
 
 namespace Service::HID {
 
-class HidBus final : public ServiceFramework<HidBus> {
+class Hidbus final : public ServiceFramework<Hidbus> {
 public:
-    explicit HidBus(Core::System& system_);
-    ~HidBus() override;
+    explicit Hidbus(Core::System& system_);
+    ~Hidbus() override;
 
 private:
     static const std::size_t max_number_of_handles = 0x13;
@@ -41,7 +43,7 @@ private:
     };
 
     // This is nn::hidbus::BusType
-    enum class BusType : u32 {
+    enum class BusType : u64 {
         LeftJoyRail,
         RightJoyRail,
         InternalBus, // Lark microphone
@@ -51,11 +53,15 @@ private:
 
     // This is nn::hidbus::BusHandle
     struct BusHandle {
-        u32 abstracted_pad_id;
-        u8 internal_index;
-        u8 player_number;
-        u8 bus_type_id;
-        bool is_valid;
+        union {
+            u64 raw{};
+
+            BitField<0, 32, u64> abstracted_pad_id;
+            BitField<32, 8, u64> internal_index;
+            BitField<40, 8, u64> player_number;
+            BitField<48, 8, u64> bus_type_id;
+            BitField<56, 1, u64> is_valid;
+        };
     };
     static_assert(sizeof(BusHandle) == 0x8, "BusHandle is an invalid size");
 
@@ -94,19 +100,38 @@ private:
         std::unique_ptr<HidbusBase> device{nullptr};
     };
 
-    void GetBusHandle(HLERequestContext& ctx);
-    void IsExternalDeviceConnected(HLERequestContext& ctx);
-    void Initialize(HLERequestContext& ctx);
-    void Finalize(HLERequestContext& ctx);
-    void EnableExternalDevice(HLERequestContext& ctx);
-    void GetExternalDeviceId(HLERequestContext& ctx);
-    void SendCommandAsync(HLERequestContext& ctx);
-    void GetSendCommandAsynceResult(HLERequestContext& ctx);
-    void SetEventForSendCommandAsycResult(HLERequestContext& ctx);
-    void GetSharedMemoryHandle(HLERequestContext& ctx);
-    void EnableJoyPollingReceiveMode(HLERequestContext& ctx);
-    void DisableJoyPollingReceiveMode(HLERequestContext& ctx);
-    void SetStatusManagerType(HLERequestContext& ctx);
+    Result GetBusHandle(Out<bool> out_is_valid, Out<BusHandle> out_bus_handle,
+                        Core::HID::NpadIdType npad_id, BusType bus_type,
+                        AppletResourceUserId aruid);
+
+    Result IsExternalDeviceConnected(Out<bool> out_is_connected, BusHandle bus_handle);
+
+    Result Initialize(BusHandle bus_handle, AppletResourceUserId aruid);
+
+    Result Finalize(BusHandle bus_handle, AppletResourceUserId aruid);
+
+    Result EnableExternalDevice(bool is_enabled, BusHandle bus_handle, u64 inval,
+                                AppletResourceUserId aruid);
+
+    Result GetExternalDeviceId(Out<u32> out_device_id, BusHandle bus_handle);
+
+    Result SendCommandAsync(BusHandle bus_handle, InBuffer<BufferAttr_HipcAutoSelect> buffer_data);
+
+    Result GetSendCommandAsynceResult(Out<u64> out_data_size, BusHandle bus_handle,
+                                      OutBuffer<BufferAttr_HipcAutoSelect> out_buffer_data);
+
+    Result SetEventForSendCommandAsycResult(OutCopyHandle<Kernel::KReadableEvent> out_event,
+                                            BusHandle bus_handle);
+
+    Result GetSharedMemoryHandle(OutCopyHandle<Kernel::KSharedMemory> out_shared_memory);
+
+    Result EnableJoyPollingReceiveMode(u32 t_mem_size, JoyPollingMode polling_mode,
+                                       BusHandle bus_handle,
+                                       InCopyHandle<Kernel::KTransferMemory> t_mem);
+
+    Result DisableJoyPollingReceiveMode(BusHandle bus_handle);
+
+    Result SetStatusManagerType(StatusManagerType manager_type);
 
     void UpdateHidbus(std::chrono::nanoseconds ns_late);
     std::optional<std::size_t> GetDeviceIndexFromHandle(BusHandle handle) const;
diff --git a/src/core/hle/service/hid/irs.cpp b/src/core/hle/service/hid/irs.cpp
index 18e544f2f..7d7368ff9 100644
--- a/src/core/hle/service/hid/irs.cpp
+++ b/src/core/hle/service/hid/irs.cpp
@@ -9,6 +9,7 @@
 #include "core/hle/kernel/k_shared_memory.h"
 #include "core/hle/kernel/k_transfer_memory.h"
 #include "core/hle/kernel/kernel.h"
+#include "core/hle/service/cmif_serialization.h"
 #include "core/hle/service/hid/irs.h"
 #include "core/hle/service/ipc_helpers.h"
 #include "core/memory.h"
@@ -28,24 +29,24 @@ namespace Service::IRS {
 IRS::IRS(Core::System& system_) : ServiceFramework{system_, "irs"} {
     // clang-format off
     static const FunctionInfo functions[] = {
-        {302, &IRS::ActivateIrsensor, "ActivateIrsensor"},
-        {303, &IRS::DeactivateIrsensor, "DeactivateIrsensor"},
-        {304, &IRS::GetIrsensorSharedMemoryHandle, "GetIrsensorSharedMemoryHandle"},
-        {305, &IRS::StopImageProcessor, "StopImageProcessor"},
-        {306, &IRS::RunMomentProcessor, "RunMomentProcessor"},
-        {307, &IRS::RunClusteringProcessor, "RunClusteringProcessor"},
-        {308, &IRS::RunImageTransferProcessor, "RunImageTransferProcessor"},
-        {309, &IRS::GetImageTransferProcessorState, "GetImageTransferProcessorState"},
-        {310, &IRS::RunTeraPluginProcessor, "RunTeraPluginProcessor"},
-        {311, &IRS::GetNpadIrCameraHandle, "GetNpadIrCameraHandle"},
-        {312, &IRS::RunPointingProcessor, "RunPointingProcessor"},
-        {313, &IRS::SuspendImageProcessor, "SuspendImageProcessor"},
-        {314, &IRS::CheckFirmwareVersion, "CheckFirmwareVersion"},
-        {315, &IRS::SetFunctionLevel, "SetFunctionLevel"},
-        {316, &IRS::RunImageTransferExProcessor, "RunImageTransferExProcessor"},
-        {317, &IRS::RunIrLedProcessor, "RunIrLedProcessor"},
-        {318, &IRS::StopImageProcessorAsync, "StopImageProcessorAsync"},
-        {319, &IRS::ActivateIrsensorWithFunctionLevel, "ActivateIrsensorWithFunctionLevel"},
+        {302, C<&IRS::ActivateIrsensor>, "ActivateIrsensor"},
+        {303, C<&IRS::DeactivateIrsensor>, "DeactivateIrsensor"},
+        {304, C<&IRS::GetIrsensorSharedMemoryHandle>, "GetIrsensorSharedMemoryHandle"},
+        {305, C<&IRS::StopImageProcessor>, "StopImageProcessor"},
+        {306, C<&IRS::RunMomentProcessor>, "RunMomentProcessor"},
+        {307, C<&IRS::RunClusteringProcessor>, "RunClusteringProcessor"},
+        {308, C<&IRS::RunImageTransferProcessor>, "RunImageTransferProcessor"},
+        {309, C<&IRS::GetImageTransferProcessorState>, "GetImageTransferProcessorState"},
+        {310, C<&IRS::RunTeraPluginProcessor>, "RunTeraPluginProcessor"},
+        {311, C<&IRS::GetNpadIrCameraHandle>, "GetNpadIrCameraHandle"},
+        {312, C<&IRS::RunPointingProcessor>, "RunPointingProcessor"},
+        {313, C<&IRS::SuspendImageProcessor>, "SuspendImageProcessor"},
+        {314, C<&IRS::CheckFirmwareVersion>, "CheckFirmwareVersion"},
+        {315, C<&IRS::SetFunctionLevel>, "SetFunctionLevel"},
+        {316, C<&IRS::RunImageTransferExProcessor>, "RunImageTransferExProcessor"},
+        {317, C<&IRS::RunIrLedProcessor>, "RunIrLedProcessor"},
+        {318, C<&IRS::StopImageProcessorAsync>, "StopImageProcessorAsync"},
+        {319, C<&IRS::ActivateIrsensorWithFunctionLevel>, "ActivateIrsensorWithFunctionLevel"},
     };
     // clang-format on
 
@@ -57,489 +58,292 @@ IRS::IRS(Core::System& system_) : ServiceFramework{system_, "irs"} {
 }
 IRS::~IRS() = default;
 
-void IRS::ActivateIrsensor(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto applet_resource_user_id{rp.Pop<u64>()};
-
-    LOG_WARNING(Service_IRS, "(STUBBED) called, applet_resource_user_id={}",
-                applet_resource_user_id);
-
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultSuccess);
+Result IRS::ActivateIrsensor(ClientAppletResourceUserId aruid) {
+    LOG_WARNING(Service_IRS, "(STUBBED) called, applet_resource_user_id={}", aruid.pid);
+    R_SUCCEED();
 }
 
-void IRS::DeactivateIrsensor(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto applet_resource_user_id{rp.Pop<u64>()};
-
-    LOG_WARNING(Service_IRS, "(STUBBED) called, applet_resource_user_id={}",
-                applet_resource_user_id);
-
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultSuccess);
+Result IRS::DeactivateIrsensor(ClientAppletResourceUserId aruid) {
+    LOG_WARNING(Service_IRS, "(STUBBED) called, applet_resource_user_id={}", aruid.pid);
+    R_SUCCEED();
 }
 
-void IRS::GetIrsensorSharedMemoryHandle(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto applet_resource_user_id{rp.Pop<u64>()};
-
-    LOG_DEBUG(Service_IRS, "called, applet_resource_user_id={}", applet_resource_user_id);
+Result IRS::GetIrsensorSharedMemoryHandle(OutCopyHandle<Kernel::KSharedMemory> out_shared_memory,
+                                          ClientAppletResourceUserId aruid) {
+    LOG_DEBUG(Service_IRS, "called, applet_resource_user_id={}", aruid.pid);
 
-    IPC::ResponseBuilder rb{ctx, 2, 1};
-    rb.Push(ResultSuccess);
-    rb.PushCopyObjects(&system.Kernel().GetIrsSharedMem());
+    *out_shared_memory = &system.Kernel().GetIrsSharedMem();
+    R_SUCCEED();
 }
 
-void IRS::StopImageProcessor(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    struct Parameters {
-        Core::IrSensor::IrCameraHandle camera_handle;
-        INSERT_PADDING_WORDS_NOINIT(1);
-        u64 applet_resource_user_id;
-    };
-    static_assert(sizeof(Parameters) == 0x10, "Parameters has incorrect size.");
-
-    const auto parameters{rp.PopRaw<Parameters>()};
-
+Result IRS::StopImageProcessor(Core::IrSensor::IrCameraHandle camera_handle,
+                               ClientAppletResourceUserId aruid) {
     LOG_WARNING(Service_IRS,
                 "(STUBBED) called, npad_type={}, npad_id={}, applet_resource_user_id={}",
-                parameters.camera_handle.npad_type, parameters.camera_handle.npad_id,
-                parameters.applet_resource_user_id);
-
-    auto result = IsIrCameraHandleValid(parameters.camera_handle);
-    if (result.IsSuccess()) {
-        // TODO: Stop Image processor
-        npad_device->SetPollingMode(Core::HID::EmulatedDeviceIndex::RightIndex,
-                                    Common::Input::PollingMode::Active);
-        result = ResultSuccess;
-    }
+                camera_handle.npad_type, camera_handle.npad_id, aruid.pid);
 
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(result);
-}
-
-void IRS::RunMomentProcessor(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    struct Parameters {
-        Core::IrSensor::IrCameraHandle camera_handle;
-        INSERT_PADDING_WORDS_NOINIT(1);
-        u64 applet_resource_user_id;
-        Core::IrSensor::PackedMomentProcessorConfig processor_config;
-    };
-    static_assert(sizeof(Parameters) == 0x30, "Parameters has incorrect size.");
+    R_TRY(IsIrCameraHandleValid(camera_handle));
 
-    const auto parameters{rp.PopRaw<Parameters>()};
+    // TODO: Stop Image processor
+    npad_device->SetPollingMode(Core::HID::EmulatedDeviceIndex::RightIndex,
+                                Common::Input::PollingMode::Active);
+    R_SUCCEED();
+}
 
+Result IRS::RunMomentProcessor(
+    Core::IrSensor::IrCameraHandle camera_handle, ClientAppletResourceUserId aruid,
+    const Core::IrSensor::PackedMomentProcessorConfig& processor_config) {
     LOG_WARNING(Service_IRS,
                 "(STUBBED) called, npad_type={}, npad_id={}, applet_resource_user_id={}",
-                parameters.camera_handle.npad_type, parameters.camera_handle.npad_id,
-                parameters.applet_resource_user_id);
-
-    const auto result = IsIrCameraHandleValid(parameters.camera_handle);
-
-    if (result.IsSuccess()) {
-        auto& device = GetIrCameraSharedMemoryDeviceEntry(parameters.camera_handle);
-        MakeProcessorWithCoreContext<MomentProcessor>(parameters.camera_handle, device);
-        auto& image_transfer_processor = GetProcessor<MomentProcessor>(parameters.camera_handle);
-        image_transfer_processor.SetConfig(parameters.processor_config);
-        npad_device->SetPollingMode(Core::HID::EmulatedDeviceIndex::RightIndex,
-                                    Common::Input::PollingMode::IR);
-    }
+                camera_handle.npad_type, camera_handle.npad_id, aruid.pid);
 
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(result);
-}
+    R_TRY(IsIrCameraHandleValid(camera_handle));
 
-void IRS::RunClusteringProcessor(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    struct Parameters {
-        Core::IrSensor::IrCameraHandle camera_handle;
-        INSERT_PADDING_WORDS_NOINIT(1);
-        u64 applet_resource_user_id;
-        Core::IrSensor::PackedClusteringProcessorConfig processor_config;
-    };
-    static_assert(sizeof(Parameters) == 0x38, "Parameters has incorrect size.");
+    auto& device = GetIrCameraSharedMemoryDeviceEntry(camera_handle);
+    MakeProcessorWithCoreContext<MomentProcessor>(camera_handle, device);
+    auto& image_transfer_processor = GetProcessor<MomentProcessor>(camera_handle);
+    image_transfer_processor.SetConfig(processor_config);
+    npad_device->SetPollingMode(Core::HID::EmulatedDeviceIndex::RightIndex,
+                                Common::Input::PollingMode::IR);
 
-    const auto parameters{rp.PopRaw<Parameters>()};
+    R_SUCCEED();
+}
 
+Result IRS::RunClusteringProcessor(
+    Core::IrSensor::IrCameraHandle camera_handle, ClientAppletResourceUserId aruid,
+    const Core::IrSensor::PackedClusteringProcessorConfig& processor_config) {
     LOG_WARNING(Service_IRS,
                 "(STUBBED) called, npad_type={}, npad_id={}, applet_resource_user_id={}",
-                parameters.camera_handle.npad_type, parameters.camera_handle.npad_id,
-                parameters.applet_resource_user_id);
-
-    auto result = IsIrCameraHandleValid(parameters.camera_handle);
-
-    if (result.IsSuccess()) {
-        auto& device = GetIrCameraSharedMemoryDeviceEntry(parameters.camera_handle);
-        MakeProcessorWithCoreContext<ClusteringProcessor>(parameters.camera_handle, device);
-        auto& image_transfer_processor =
-            GetProcessor<ClusteringProcessor>(parameters.camera_handle);
-        image_transfer_processor.SetConfig(parameters.processor_config);
-        npad_device->SetPollingMode(Core::HID::EmulatedDeviceIndex::RightIndex,
-                                    Common::Input::PollingMode::IR);
-    }
+                camera_handle.npad_type, camera_handle.npad_id, aruid.pid);
 
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(result);
-}
+    R_TRY(IsIrCameraHandleValid(camera_handle));
 
-void IRS::RunImageTransferProcessor(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    struct Parameters {
-        Core::IrSensor::IrCameraHandle camera_handle;
-        INSERT_PADDING_WORDS_NOINIT(1);
-        u64 applet_resource_user_id;
-        Core::IrSensor::PackedImageTransferProcessorConfig processor_config;
-        u32 transfer_memory_size;
-    };
-    static_assert(sizeof(Parameters) == 0x30, "Parameters has incorrect size.");
+    auto& device = GetIrCameraSharedMemoryDeviceEntry(camera_handle);
+    MakeProcessorWithCoreContext<ClusteringProcessor>(camera_handle, device);
+    auto& image_transfer_processor = GetProcessor<ClusteringProcessor>(camera_handle);
+    image_transfer_processor.SetConfig(processor_config);
+    npad_device->SetPollingMode(Core::HID::EmulatedDeviceIndex::RightIndex,
+                                Common::Input::PollingMode::IR);
 
-    const auto parameters{rp.PopRaw<Parameters>()};
-    const auto t_mem_handle{ctx.GetCopyHandle(0)};
+    R_SUCCEED();
+}
 
-    auto t_mem = ctx.GetObjectFromHandle<Kernel::KTransferMemory>(t_mem_handle);
+Result IRS::RunImageTransferProcessor(
+    Core::IrSensor::IrCameraHandle camera_handle, ClientAppletResourceUserId aruid,
+    const Core::IrSensor::PackedImageTransferProcessorConfig& processor_config,
+    u64 transfer_memory_size, InCopyHandle<Kernel::KTransferMemory> t_mem) {
 
-    if (t_mem.IsNull()) {
-        LOG_ERROR(Service_IRS, "t_mem is a nullptr for handle=0x{:08X}", t_mem_handle);
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultUnknown);
-        return;
-    }
-
-    ASSERT_MSG(t_mem->GetSize() == parameters.transfer_memory_size, "t_mem has incorrect size");
+    ASSERT_MSG(t_mem->GetSize() == transfer_memory_size, "t_mem has incorrect size");
 
     LOG_INFO(Service_IRS,
              "called, npad_type={}, npad_id={}, transfer_memory_size={}, transfer_memory_size={}, "
              "applet_resource_user_id={}",
-             parameters.camera_handle.npad_type, parameters.camera_handle.npad_id,
-             parameters.transfer_memory_size, t_mem->GetSize(), parameters.applet_resource_user_id);
-
-    const auto result = IsIrCameraHandleValid(parameters.camera_handle);
-
-    if (result.IsSuccess()) {
-        auto& device = GetIrCameraSharedMemoryDeviceEntry(parameters.camera_handle);
-        MakeProcessorWithCoreContext<ImageTransferProcessor>(parameters.camera_handle, device);
-        auto& image_transfer_processor =
-            GetProcessor<ImageTransferProcessor>(parameters.camera_handle);
-        image_transfer_processor.SetConfig(parameters.processor_config);
-        image_transfer_processor.SetTransferMemoryAddress(t_mem->GetSourceAddress());
-        npad_device->SetPollingMode(Core::HID::EmulatedDeviceIndex::RightIndex,
-                                    Common::Input::PollingMode::IR);
-    }
+             camera_handle.npad_type, camera_handle.npad_id, transfer_memory_size, t_mem->GetSize(),
+             aruid.pid);
 
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(result);
-}
+    R_TRY(IsIrCameraHandleValid(camera_handle));
 
-void IRS::GetImageTransferProcessorState(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    struct Parameters {
-        Core::IrSensor::IrCameraHandle camera_handle;
-        INSERT_PADDING_WORDS_NOINIT(1);
-        u64 applet_resource_user_id;
-    };
-    static_assert(sizeof(Parameters) == 0x10, "Parameters has incorrect size.");
+    auto& device = GetIrCameraSharedMemoryDeviceEntry(camera_handle);
+    MakeProcessorWithCoreContext<ImageTransferProcessor>(camera_handle, device);
+    auto& image_transfer_processor = GetProcessor<ImageTransferProcessor>(camera_handle);
+    image_transfer_processor.SetConfig(processor_config);
+    image_transfer_processor.SetTransferMemoryAddress(t_mem->GetSourceAddress());
+    npad_device->SetPollingMode(Core::HID::EmulatedDeviceIndex::RightIndex,
+                                Common::Input::PollingMode::IR);
 
-    const auto parameters{rp.PopRaw<Parameters>()};
+    R_SUCCEED();
+}
 
+Result IRS::GetImageTransferProcessorState(
+    Out<Core::IrSensor::ImageTransferProcessorState> out_state,
+    Core::IrSensor::IrCameraHandle camera_handle, ClientAppletResourceUserId aruid,
+    OutBuffer<BufferAttr_HipcMapAlias> out_buffer_data) {
     LOG_DEBUG(Service_IRS, "(STUBBED) called, npad_type={}, npad_id={}, applet_resource_user_id={}",
-              parameters.camera_handle.npad_type, parameters.camera_handle.npad_id,
-              parameters.applet_resource_user_id);
-
-    const auto result = IsIrCameraHandleValid(parameters.camera_handle);
-    if (result.IsError()) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(result);
-        return;
-    }
+              camera_handle.npad_type, camera_handle.npad_id, aruid.pid);
 
-    const auto& device = GetIrCameraSharedMemoryDeviceEntry(parameters.camera_handle);
+    R_TRY(IsIrCameraHandleValid(camera_handle));
 
-    if (device.mode != Core::IrSensor::IrSensorMode::ImageTransferProcessor) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(InvalidProcessorState);
-        return;
-    }
+    const auto& device = GetIrCameraSharedMemoryDeviceEntry(camera_handle);
+
+    R_TRY(IsIrCameraHandleValid(camera_handle));
+    R_UNLESS(device.mode == Core::IrSensor::IrSensorMode::ImageTransferProcessor,
+             InvalidProcessorState);
 
-    std::vector<u8> data{};
-    const auto& image_transfer_processor =
-        GetProcessor<ImageTransferProcessor>(parameters.camera_handle);
-    const auto& state = image_transfer_processor.GetState(data);
+    *out_state = GetProcessor<ImageTransferProcessor>(camera_handle).GetState(out_buffer_data);
 
-    ctx.WriteBuffer(data);
-    IPC::ResponseBuilder rb{ctx, 6};
-    rb.Push(ResultSuccess);
-    rb.PushRaw(state);
+    R_SUCCEED();
 }
 
-void IRS::RunTeraPluginProcessor(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    struct Parameters {
-        Core::IrSensor::IrCameraHandle camera_handle;
-        Core::IrSensor::PackedTeraPluginProcessorConfig processor_config;
-        INSERT_PADDING_WORDS_NOINIT(1);
-        u64 applet_resource_user_id;
-    };
-    static_assert(sizeof(Parameters) == 0x18, "Parameters has incorrect size.");
+Result IRS::RunTeraPluginProcessor(Core::IrSensor::IrCameraHandle camera_handle,
+                                   Core::IrSensor::PackedTeraPluginProcessorConfig processor_config,
+                                   ClientAppletResourceUserId aruid) {
+    LOG_WARNING(Service_IRS,
+                "(STUBBED) called, npad_type={}, npad_id={}, mode={}, mcu_version={}.{}, "
+                "applet_resource_user_id={}",
+                camera_handle.npad_type, camera_handle.npad_id, processor_config.mode,
+                processor_config.required_mcu_version.major,
+                processor_config.required_mcu_version.minor, aruid.pid);
 
-    const auto parameters{rp.PopRaw<Parameters>()};
+    R_TRY(IsIrCameraHandleValid(camera_handle));
 
-    LOG_WARNING(
-        Service_IRS,
-        "(STUBBED) called, npad_type={}, npad_id={}, mode={}, mcu_version={}.{}, "
-        "applet_resource_user_id={}",
-        parameters.camera_handle.npad_type, parameters.camera_handle.npad_id,
-        parameters.processor_config.mode, parameters.processor_config.required_mcu_version.major,
-        parameters.processor_config.required_mcu_version.minor, parameters.applet_resource_user_id);
-
-    const auto result = IsIrCameraHandleValid(parameters.camera_handle);
-
-    if (result.IsSuccess()) {
-        auto& device = GetIrCameraSharedMemoryDeviceEntry(parameters.camera_handle);
-        MakeProcessor<TeraPluginProcessor>(parameters.camera_handle, device);
-        auto& image_transfer_processor =
-            GetProcessor<TeraPluginProcessor>(parameters.camera_handle);
-        image_transfer_processor.SetConfig(parameters.processor_config);
-        npad_device->SetPollingMode(Core::HID::EmulatedDeviceIndex::RightIndex,
-                                    Common::Input::PollingMode::IR);
-    }
+    auto& device = GetIrCameraSharedMemoryDeviceEntry(camera_handle);
+    MakeProcessor<TeraPluginProcessor>(camera_handle, device);
+    auto& image_transfer_processor = GetProcessor<TeraPluginProcessor>(camera_handle);
+    image_transfer_processor.SetConfig(processor_config);
+    npad_device->SetPollingMode(Core::HID::EmulatedDeviceIndex::RightIndex,
+                                Common::Input::PollingMode::IR);
 
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(result);
+    R_SUCCEED();
 }
 
-void IRS::GetNpadIrCameraHandle(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto npad_id{rp.PopEnum<Core::HID::NpadIdType>()};
-
-    if (npad_id > Core::HID::NpadIdType::Player8 && npad_id != Core::HID::NpadIdType::Invalid &&
-        npad_id != Core::HID::NpadIdType::Handheld) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(Service::HID::ResultInvalidNpadId);
-        return;
-    }
+Result IRS::GetNpadIrCameraHandle(Out<Core::IrSensor::IrCameraHandle> out_camera_handle,
+                                  Core::HID::NpadIdType npad_id) {
+    R_UNLESS(HID::IsNpadIdValid(npad_id), HID::ResultInvalidNpadId);
 
-    Core::IrSensor::IrCameraHandle camera_handle{
+    *out_camera_handle = {
         .npad_id = static_cast<u8>(HID::NpadIdTypeToIndex(npad_id)),
         .npad_type = Core::HID::NpadStyleIndex::None,
     };
 
     LOG_INFO(Service_IRS, "called, npad_id={}, camera_npad_id={}, camera_npad_type={}", npad_id,
-             camera_handle.npad_id, camera_handle.npad_type);
+             out_camera_handle->npad_id, out_camera_handle->npad_type);
 
-    IPC::ResponseBuilder rb{ctx, 3};
-    rb.Push(ResultSuccess);
-    rb.PushRaw(camera_handle);
+    R_SUCCEED();
 }
 
-void IRS::RunPointingProcessor(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto camera_handle{rp.PopRaw<Core::IrSensor::IrCameraHandle>()};
-    const auto processor_config{rp.PopRaw<Core::IrSensor::PackedPointingProcessorConfig>()};
-    const auto applet_resource_user_id{rp.Pop<u64>()};
-
+Result IRS::RunPointingProcessor(
+    Core::IrSensor::IrCameraHandle camera_handle,
+    const Core::IrSensor::PackedPointingProcessorConfig& processor_config,
+    ClientAppletResourceUserId aruid) {
     LOG_WARNING(
         Service_IRS,
         "(STUBBED) called, npad_type={}, npad_id={}, mcu_version={}.{}, applet_resource_user_id={}",
         camera_handle.npad_type, camera_handle.npad_id, processor_config.required_mcu_version.major,
-        processor_config.required_mcu_version.minor, applet_resource_user_id);
+        processor_config.required_mcu_version.minor, aruid.pid);
 
-    auto result = IsIrCameraHandleValid(camera_handle);
+    R_TRY(IsIrCameraHandleValid(camera_handle));
 
-    if (result.IsSuccess()) {
-        auto& device = GetIrCameraSharedMemoryDeviceEntry(camera_handle);
-        MakeProcessor<PointingProcessor>(camera_handle, device);
-        auto& image_transfer_processor = GetProcessor<PointingProcessor>(camera_handle);
-        image_transfer_processor.SetConfig(processor_config);
-        npad_device->SetPollingMode(Core::HID::EmulatedDeviceIndex::RightIndex,
-                                    Common::Input::PollingMode::IR);
-    }
+    auto& device = GetIrCameraSharedMemoryDeviceEntry(camera_handle);
+    MakeProcessor<PointingProcessor>(camera_handle, device);
+    auto& image_transfer_processor = GetProcessor<PointingProcessor>(camera_handle);
+    image_transfer_processor.SetConfig(processor_config);
+    npad_device->SetPollingMode(Core::HID::EmulatedDeviceIndex::RightIndex,
+                                Common::Input::PollingMode::IR);
 
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(result);
+    R_SUCCEED();
 }
 
-void IRS::SuspendImageProcessor(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    struct Parameters {
-        Core::IrSensor::IrCameraHandle camera_handle;
-        INSERT_PADDING_WORDS_NOINIT(1);
-        u64 applet_resource_user_id;
-    };
-    static_assert(sizeof(Parameters) == 0x10, "Parameters has incorrect size.");
-
-    const auto parameters{rp.PopRaw<Parameters>()};
-
+Result IRS::SuspendImageProcessor(Core::IrSensor::IrCameraHandle camera_handle,
+                                  ClientAppletResourceUserId aruid) {
     LOG_WARNING(Service_IRS,
                 "(STUBBED) called, npad_type={}, npad_id={}, applet_resource_user_id={}",
-                parameters.camera_handle.npad_type, parameters.camera_handle.npad_id,
-                parameters.applet_resource_user_id);
+                camera_handle.npad_type, camera_handle.npad_id, aruid.pid);
 
-    auto result = IsIrCameraHandleValid(parameters.camera_handle);
-    if (result.IsSuccess()) {
-        // TODO: Suspend image processor
-        result = ResultSuccess;
-    }
+    R_TRY(IsIrCameraHandleValid(camera_handle));
 
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(result);
-}
+    // TODO: Suspend image processor
 
-void IRS::CheckFirmwareVersion(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto camera_handle{rp.PopRaw<Core::IrSensor::IrCameraHandle>()};
-    const auto mcu_version{rp.PopRaw<Core::IrSensor::PackedMcuVersion>()};
-    const auto applet_resource_user_id{rp.Pop<u64>()};
+    R_SUCCEED();
+}
 
+Result IRS::CheckFirmwareVersion(Core::IrSensor::IrCameraHandle camera_handle,
+                                 Core::IrSensor::PackedMcuVersion mcu_version,
+                                 ClientAppletResourceUserId aruid) {
     LOG_WARNING(
         Service_IRS,
         "(STUBBED) called, npad_type={}, npad_id={}, applet_resource_user_id={}, mcu_version={}.{}",
-        camera_handle.npad_type, camera_handle.npad_id, applet_resource_user_id, mcu_version.major,
+        camera_handle.npad_type, camera_handle.npad_id, aruid.pid, mcu_version.major,
         mcu_version.minor);
 
-    auto result = IsIrCameraHandleValid(camera_handle);
-    if (result.IsSuccess()) {
-        // TODO: Check firmware version
-        result = ResultSuccess;
-    }
+    R_TRY(IsIrCameraHandleValid(camera_handle));
 
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(result);
-}
+    // TODO: Check firmware version
 
-void IRS::SetFunctionLevel(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto camera_handle{rp.PopRaw<Core::IrSensor::IrCameraHandle>()};
-    const auto function_level{rp.PopRaw<Core::IrSensor::PackedFunctionLevel>()};
-    const auto applet_resource_user_id{rp.Pop<u64>()};
+    R_SUCCEED();
+}
 
+Result IRS::SetFunctionLevel(Core::IrSensor::IrCameraHandle camera_handle,
+                             Core::IrSensor::PackedFunctionLevel function_level,
+                             ClientAppletResourceUserId aruid) {
     LOG_WARNING(
         Service_IRS,
         "(STUBBED) called, npad_type={}, npad_id={}, function_level={}, applet_resource_user_id={}",
-        camera_handle.npad_type, camera_handle.npad_id, function_level.function_level,
-        applet_resource_user_id);
+        camera_handle.npad_type, camera_handle.npad_id, function_level.function_level, aruid.pid);
 
-    auto result = IsIrCameraHandleValid(camera_handle);
-    if (result.IsSuccess()) {
-        // TODO: Set Function level
-        result = ResultSuccess;
-    }
+    R_TRY(IsIrCameraHandleValid(camera_handle));
 
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(result);
-}
+    // TODO: Set Function level
 
-void IRS::RunImageTransferExProcessor(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    struct Parameters {
-        Core::IrSensor::IrCameraHandle camera_handle;
-        INSERT_PADDING_WORDS_NOINIT(1);
-        u64 applet_resource_user_id;
-        Core::IrSensor::PackedImageTransferProcessorExConfig processor_config;
-        u64 transfer_memory_size;
-    };
-    static_assert(sizeof(Parameters) == 0x38, "Parameters has incorrect size.");
+    R_SUCCEED();
+}
 
-    const auto parameters{rp.PopRaw<Parameters>()};
-    const auto t_mem_handle{ctx.GetCopyHandle(0)};
+Result IRS::RunImageTransferExProcessor(
+    Core::IrSensor::IrCameraHandle camera_handle, ClientAppletResourceUserId aruid,
+    const Core::IrSensor::PackedImageTransferProcessorExConfig& processor_config,
+    u64 transfer_memory_size, InCopyHandle<Kernel::KTransferMemory> t_mem) {
 
-    auto t_mem = ctx.GetObjectFromHandle<Kernel::KTransferMemory>(t_mem_handle);
+    ASSERT_MSG(t_mem->GetSize() == transfer_memory_size, "t_mem has incorrect size");
 
     LOG_INFO(Service_IRS,
              "called, npad_type={}, npad_id={}, transfer_memory_size={}, "
              "applet_resource_user_id={}",
-             parameters.camera_handle.npad_type, parameters.camera_handle.npad_id,
-             parameters.transfer_memory_size, parameters.applet_resource_user_id);
-
-    auto result = IsIrCameraHandleValid(parameters.camera_handle);
-
-    if (result.IsSuccess()) {
-        auto& device = GetIrCameraSharedMemoryDeviceEntry(parameters.camera_handle);
-        MakeProcessorWithCoreContext<ImageTransferProcessor>(parameters.camera_handle, device);
-        auto& image_transfer_processor =
-            GetProcessor<ImageTransferProcessor>(parameters.camera_handle);
-        image_transfer_processor.SetConfig(parameters.processor_config);
-        image_transfer_processor.SetTransferMemoryAddress(t_mem->GetSourceAddress());
-        npad_device->SetPollingMode(Core::HID::EmulatedDeviceIndex::RightIndex,
-                                    Common::Input::PollingMode::IR);
-    }
+             camera_handle.npad_type, camera_handle.npad_id, transfer_memory_size, aruid.pid);
 
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(result);
-}
+    R_TRY(IsIrCameraHandleValid(camera_handle));
+
+    auto& device = GetIrCameraSharedMemoryDeviceEntry(camera_handle);
+    MakeProcessorWithCoreContext<ImageTransferProcessor>(camera_handle, device);
+    auto& image_transfer_processor = GetProcessor<ImageTransferProcessor>(camera_handle);
+    image_transfer_processor.SetConfig(processor_config);
+    image_transfer_processor.SetTransferMemoryAddress(t_mem->GetSourceAddress());
+    npad_device->SetPollingMode(Core::HID::EmulatedDeviceIndex::RightIndex,
+                                Common::Input::PollingMode::IR);
 
-void IRS::RunIrLedProcessor(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto camera_handle{rp.PopRaw<Core::IrSensor::IrCameraHandle>()};
-    const auto processor_config{rp.PopRaw<Core::IrSensor::PackedIrLedProcessorConfig>()};
-    const auto applet_resource_user_id{rp.Pop<u64>()};
+    R_SUCCEED();
+}
 
+Result IRS::RunIrLedProcessor(Core::IrSensor::IrCameraHandle camera_handle,
+                              Core::IrSensor::PackedIrLedProcessorConfig processor_config,
+                              ClientAppletResourceUserId aruid) {
     LOG_WARNING(Service_IRS,
                 "(STUBBED) called, npad_type={}, npad_id={}, light_target={}, mcu_version={}.{} "
                 "applet_resource_user_id={}",
                 camera_handle.npad_type, camera_handle.npad_id, processor_config.light_target,
                 processor_config.required_mcu_version.major,
-                processor_config.required_mcu_version.minor, applet_resource_user_id);
+                processor_config.required_mcu_version.minor, aruid.pid);
 
-    auto result = IsIrCameraHandleValid(camera_handle);
+    R_TRY(IsIrCameraHandleValid(camera_handle));
 
-    if (result.IsSuccess()) {
-        auto& device = GetIrCameraSharedMemoryDeviceEntry(camera_handle);
-        MakeProcessor<IrLedProcessor>(camera_handle, device);
-        auto& image_transfer_processor = GetProcessor<IrLedProcessor>(camera_handle);
-        image_transfer_processor.SetConfig(processor_config);
-        npad_device->SetPollingMode(Core::HID::EmulatedDeviceIndex::RightIndex,
-                                    Common::Input::PollingMode::IR);
-    }
+    auto& device = GetIrCameraSharedMemoryDeviceEntry(camera_handle);
+    MakeProcessor<IrLedProcessor>(camera_handle, device);
+    auto& image_transfer_processor = GetProcessor<IrLedProcessor>(camera_handle);
+    image_transfer_processor.SetConfig(processor_config);
+    npad_device->SetPollingMode(Core::HID::EmulatedDeviceIndex::RightIndex,
+                                Common::Input::PollingMode::IR);
 
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(result);
+    R_SUCCEED();
 }
 
-void IRS::StopImageProcessorAsync(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    struct Parameters {
-        Core::IrSensor::IrCameraHandle camera_handle;
-        INSERT_PADDING_WORDS_NOINIT(1);
-        u64 applet_resource_user_id;
-    };
-    static_assert(sizeof(Parameters) == 0x10, "Parameters has incorrect size.");
-
-    const auto parameters{rp.PopRaw<Parameters>()};
-
+Result IRS::StopImageProcessorAsync(Core::IrSensor::IrCameraHandle camera_handle,
+                                    ClientAppletResourceUserId aruid) {
     LOG_WARNING(Service_IRS,
                 "(STUBBED) called, npad_type={}, npad_id={}, applet_resource_user_id={}",
-                parameters.camera_handle.npad_type, parameters.camera_handle.npad_id,
-                parameters.applet_resource_user_id);
-
-    auto result = IsIrCameraHandleValid(parameters.camera_handle);
-    if (result.IsSuccess()) {
-        // TODO: Stop image processor async
-        npad_device->SetPollingMode(Core::HID::EmulatedDeviceIndex::RightIndex,
-                                    Common::Input::PollingMode::Active);
-        result = ResultSuccess;
-    }
+                camera_handle.npad_type, camera_handle.npad_id, aruid.pid);
 
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(result);
-}
+    R_TRY(IsIrCameraHandleValid(camera_handle));
 
-void IRS::ActivateIrsensorWithFunctionLevel(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    struct Parameters {
-        Core::IrSensor::PackedFunctionLevel function_level;
-        INSERT_PADDING_WORDS_NOINIT(1);
-        u64 applet_resource_user_id;
-    };
-    static_assert(sizeof(Parameters) == 0x10, "Parameters has incorrect size.");
+    // TODO: Stop image processor async
+    npad_device->SetPollingMode(Core::HID::EmulatedDeviceIndex::RightIndex,
+                                Common::Input::PollingMode::Active);
 
-    const auto parameters{rp.PopRaw<Parameters>()};
+    R_SUCCEED();
+}
 
+Result IRS::ActivateIrsensorWithFunctionLevel(Core::IrSensor::PackedFunctionLevel function_level,
+                                              ClientAppletResourceUserId aruid) {
     LOG_WARNING(Service_IRS, "(STUBBED) called, function_level={}, applet_resource_user_id={}",
-                parameters.function_level.function_level, parameters.applet_resource_user_id);
-
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultSuccess);
+                function_level.function_level, aruid.pid);
+    R_SUCCEED();
 }
 
 Result IRS::IsIrCameraHandleValid(const Core::IrSensor::IrCameraHandle& camera_handle) const {
diff --git a/src/core/hle/service/hid/irs.h b/src/core/hle/service/hid/irs.h
index 06b7279ee..58dfee6c3 100644
--- a/src/core/hle/service/hid/irs.h
+++ b/src/core/hle/service/hid/irs.h
@@ -4,6 +4,7 @@
 #pragma once
 
 #include "core/core.h"
+#include "core/hle/service/cmif_types.h"
 #include "core/hle/service/service.h"
 #include "hid_core/hid_types.h"
 #include "hid_core/irsensor/irs_types.h"
@@ -35,26 +36,73 @@ private:
     };
     static_assert(sizeof(StatusManager) == 0x8000, "StatusManager is an invalid size");
 
-    void ActivateIrsensor(HLERequestContext& ctx);
-    void DeactivateIrsensor(HLERequestContext& ctx);
-    void GetIrsensorSharedMemoryHandle(HLERequestContext& ctx);
-    void StopImageProcessor(HLERequestContext& ctx);
-    void RunMomentProcessor(HLERequestContext& ctx);
-    void RunClusteringProcessor(HLERequestContext& ctx);
-    void RunImageTransferProcessor(HLERequestContext& ctx);
-    void GetImageTransferProcessorState(HLERequestContext& ctx);
-    void RunTeraPluginProcessor(HLERequestContext& ctx);
-    void GetNpadIrCameraHandle(HLERequestContext& ctx);
-    void RunPointingProcessor(HLERequestContext& ctx);
-    void SuspendImageProcessor(HLERequestContext& ctx);
-    void CheckFirmwareVersion(HLERequestContext& ctx);
-    void SetFunctionLevel(HLERequestContext& ctx);
-    void RunImageTransferExProcessor(HLERequestContext& ctx);
-    void RunIrLedProcessor(HLERequestContext& ctx);
-    void StopImageProcessorAsync(HLERequestContext& ctx);
-    void ActivateIrsensorWithFunctionLevel(HLERequestContext& ctx);
+    Result ActivateIrsensor(ClientAppletResourceUserId aruid);
+
+    Result DeactivateIrsensor(ClientAppletResourceUserId aruid);
+
+    Result GetIrsensorSharedMemoryHandle(OutCopyHandle<Kernel::KSharedMemory> out_shared_memory,
+                                         ClientAppletResourceUserId aruid);
+    Result StopImageProcessor(Core::IrSensor::IrCameraHandle camera_handle,
+                              ClientAppletResourceUserId aruid);
+
+    Result RunMomentProcessor(Core::IrSensor::IrCameraHandle camera_handle,
+                              ClientAppletResourceUserId aruid,
+                              const Core::IrSensor::PackedMomentProcessorConfig& processor_config);
+
+    Result RunClusteringProcessor(
+        Core::IrSensor::IrCameraHandle camera_handle, ClientAppletResourceUserId aruid,
+        const Core::IrSensor::PackedClusteringProcessorConfig& processor_config);
+
+    Result RunImageTransferProcessor(
+        Core::IrSensor::IrCameraHandle camera_handle, ClientAppletResourceUserId aruid,
+        const Core::IrSensor::PackedImageTransferProcessorConfig& processor_config,
+        u64 transfer_memory_size, InCopyHandle<Kernel::KTransferMemory> t_mem);
+
+    Result GetImageTransferProcessorState(
+        Out<Core::IrSensor::ImageTransferProcessorState> out_state,
+        Core::IrSensor::IrCameraHandle camera_handle, ClientAppletResourceUserId aruid,
+        OutBuffer<BufferAttr_HipcMapAlias> out_buffer_data);
+
+    Result RunTeraPluginProcessor(Core::IrSensor::IrCameraHandle camera_handle,
+                                  Core::IrSensor::PackedTeraPluginProcessorConfig processor_config,
+                                  ClientAppletResourceUserId aruid);
+
+    Result GetNpadIrCameraHandle(Out<Core::IrSensor::IrCameraHandle> out_camera_handle,
+                                 Core::HID::NpadIdType npad_id);
+
+    Result RunPointingProcessor(
+        Core::IrSensor::IrCameraHandle camera_handle,
+        const Core::IrSensor::PackedPointingProcessorConfig& processor_config,
+        ClientAppletResourceUserId aruid);
+
+    Result SuspendImageProcessor(Core::IrSensor::IrCameraHandle camera_handle,
+                                 ClientAppletResourceUserId aruid);
+
+    Result CheckFirmwareVersion(Core::IrSensor::IrCameraHandle camera_handle,
+                                Core::IrSensor::PackedMcuVersion mcu_version,
+                                ClientAppletResourceUserId aruid);
+
+    Result SetFunctionLevel(Core::IrSensor::IrCameraHandle camera_handle,
+                            Core::IrSensor::PackedFunctionLevel function_level,
+                            ClientAppletResourceUserId aruid);
+
+    Result RunImageTransferExProcessor(
+        Core::IrSensor::IrCameraHandle camera_handle, ClientAppletResourceUserId aruid,
+        const Core::IrSensor::PackedImageTransferProcessorExConfig& processor_config,
+        u64 transfer_memory_size, InCopyHandle<Kernel::KTransferMemory> t_mem);
+
+    Result RunIrLedProcessor(Core::IrSensor::IrCameraHandle camera_handle,
+                             Core::IrSensor::PackedIrLedProcessorConfig processor_config,
+                             ClientAppletResourceUserId aruid);
+
+    Result StopImageProcessorAsync(Core::IrSensor::IrCameraHandle camera_handle,
+                                   ClientAppletResourceUserId aruid);
+
+    Result ActivateIrsensorWithFunctionLevel(Core::IrSensor::PackedFunctionLevel function_level,
+                                             ClientAppletResourceUserId aruid);
 
     Result IsIrCameraHandleValid(const Core::IrSensor::IrCameraHandle& camera_handle) const;
+
     Core::IrSensor::DeviceFormat& GetIrCameraSharedMemoryDeviceEntry(
         const Core::IrSensor::IrCameraHandle& camera_handle);
 
diff --git a/src/core/hle/service/nvdrv/core/heap_mapper.cpp b/src/core/hle/service/nvdrv/core/heap_mapper.cpp
index 096dc5deb..af17e3e85 100644
--- a/src/core/hle/service/nvdrv/core/heap_mapper.cpp
+++ b/src/core/hle/service/nvdrv/core/heap_mapper.cpp
@@ -3,110 +3,21 @@
 
 #include <mutex>
 
-#include <boost/container/small_vector.hpp>
-#define BOOST_NO_MT
-#include <boost/pool/detail/mutex.hpp>
-#undef BOOST_NO_MT
-#include <boost/icl/interval.hpp>
-#include <boost/icl/interval_base_set.hpp>
-#include <boost/icl/interval_set.hpp>
-#include <boost/icl/split_interval_map.hpp>
-#include <boost/pool/pool.hpp>
-#include <boost/pool/pool_alloc.hpp>
-#include <boost/pool/poolfwd.hpp>
-
+#include "common/range_sets.h"
+#include "common/range_sets.inc"
 #include "core/hle/service/nvdrv/core/heap_mapper.h"
 #include "video_core/host1x/host1x.h"
 
-namespace boost {
-template <typename T>
-class fast_pool_allocator<T, default_user_allocator_new_delete, details::pool::null_mutex, 4096, 0>;
-}
-
 namespace Service::Nvidia::NvCore {
 
-using IntervalCompare = std::less<DAddr>;
-using IntervalInstance = boost::icl::interval_type_default<DAddr, std::less>;
-using IntervalAllocator = boost::fast_pool_allocator<DAddr>;
-using IntervalSet = boost::icl::interval_set<DAddr>;
-using IntervalType = typename IntervalSet::interval_type;
-
-template <typename Type>
-struct counter_add_functor : public boost::icl::identity_based_inplace_combine<Type> {
-    // types
-    typedef counter_add_functor<Type> type;
-    typedef boost::icl::identity_based_inplace_combine<Type> base_type;
-
-    // public member functions
-    void operator()(Type& current, const Type& added) const {
-        current += added;
-        if (current < base_type::identity_element()) {
-            current = base_type::identity_element();
-        }
-    }
-
-    // public static functions
-    static void version(Type&){};
-};
-
-using OverlapCombine = counter_add_functor<int>;
-using OverlapSection = boost::icl::inter_section<int>;
-using OverlapCounter = boost::icl::split_interval_map<DAddr, int>;
-
 struct HeapMapper::HeapMapperInternal {
-    HeapMapperInternal(Tegra::Host1x::Host1x& host1x) : device_memory{host1x.MemoryManager()} {}
+    HeapMapperInternal(Tegra::Host1x::Host1x& host1x) : m_device_memory{host1x.MemoryManager()} {}
     ~HeapMapperInternal() = default;
 
-    template <typename Func>
-    void ForEachInOverlapCounter(OverlapCounter& current_range, VAddr cpu_addr, u64 size,
-                                 Func&& func) {
-        const DAddr start_address = cpu_addr;
-        const DAddr end_address = start_address + size;
-        const IntervalType search_interval{start_address, end_address};
-        auto it = current_range.lower_bound(search_interval);
-        if (it == current_range.end()) {
-            return;
-        }
-        auto end_it = current_range.upper_bound(search_interval);
-        for (; it != end_it; it++) {
-            auto& inter = it->first;
-            DAddr inter_addr_end = inter.upper();
-            DAddr inter_addr = inter.lower();
-            if (inter_addr_end > end_address) {
-                inter_addr_end = end_address;
-            }
-            if (inter_addr < start_address) {
-                inter_addr = start_address;
-            }
-            func(inter_addr, inter_addr_end, it->second);
-        }
-    }
-
-    void RemoveEachInOverlapCounter(OverlapCounter& current_range,
-                                    const IntervalType search_interval, int subtract_value) {
-        bool any_removals = false;
-        current_range.add(std::make_pair(search_interval, subtract_value));
-        do {
-            any_removals = false;
-            auto it = current_range.lower_bound(search_interval);
-            if (it == current_range.end()) {
-                return;
-            }
-            auto end_it = current_range.upper_bound(search_interval);
-            for (; it != end_it; it++) {
-                if (it->second <= 0) {
-                    any_removals = true;
-                    current_range.erase(it);
-                    break;
-                }
-            }
-        } while (any_removals);
-    }
-
-    IntervalSet base_set;
-    OverlapCounter mapping_overlaps;
-    Tegra::MaxwellDeviceMemoryManager& device_memory;
-    std::mutex guard;
+    Common::RangeSet<VAddr> m_temporary_set;
+    Common::OverlapRangeSet<VAddr> m_mapped_ranges;
+    Tegra::MaxwellDeviceMemoryManager& m_device_memory;
+    std::mutex m_guard;
 };
 
 HeapMapper::HeapMapper(VAddr start_vaddress, DAddr start_daddress, size_t size, Core::Asid asid,
@@ -116,60 +27,48 @@ HeapMapper::HeapMapper(VAddr start_vaddress, DAddr start_daddress, size_t size,
 }
 
 HeapMapper::~HeapMapper() {
-    m_internal->device_memory.Unmap(m_daddress, m_size);
+    // Unmap whatever has been mapped.
+    m_internal->m_mapped_ranges.ForEach([this](VAddr start_addr, VAddr end_addr, s32 count) {
+        const size_t sub_size = end_addr - start_addr;
+        const size_t offset = start_addr - m_vaddress;
+        m_internal->m_device_memory.Unmap(m_daddress + offset, sub_size);
+    });
 }
 
 DAddr HeapMapper::Map(VAddr start, size_t size) {
-    std::scoped_lock lk(m_internal->guard);
-    m_internal->base_set.clear();
-    const IntervalType interval{start, start + size};
-    m_internal->base_set.insert(interval);
-    m_internal->ForEachInOverlapCounter(m_internal->mapping_overlaps, start, size,
-                                        [this](VAddr start_addr, VAddr end_addr, int) {
-                                            const IntervalType other{start_addr, end_addr};
-                                            m_internal->base_set.subtract(other);
-                                        });
-    if (!m_internal->base_set.empty()) {
-        auto it = m_internal->base_set.begin();
-        auto end_it = m_internal->base_set.end();
-        for (; it != end_it; it++) {
-            const VAddr inter_addr_end = it->upper();
-            const VAddr inter_addr = it->lower();
-            const size_t offset = inter_addr - m_vaddress;
-            const size_t sub_size = inter_addr_end - inter_addr;
-            m_internal->device_memory.Map(m_daddress + offset, m_vaddress + offset, sub_size,
-                                          m_asid);
-        }
-    }
-    m_internal->mapping_overlaps += std::make_pair(interval, 1);
-    m_internal->base_set.clear();
-    return m_daddress + (start - m_vaddress);
+    std::scoped_lock lk(m_internal->m_guard);
+    // Add the mapping range to a temporary range set.
+    m_internal->m_temporary_set.Clear();
+    m_internal->m_temporary_set.Add(start, size);
+
+    // Remove anything that's already mapped from the temporary range set.
+    m_internal->m_mapped_ranges.ForEachInRange(
+        start, size, [this](VAddr start_addr, VAddr end_addr, s32) {
+            m_internal->m_temporary_set.Subtract(start_addr, end_addr - start_addr);
+        });
+
+    // Map anything that has not been mapped yet.
+    m_internal->m_temporary_set.ForEach([this](VAddr start_addr, VAddr end_addr) {
+        const size_t sub_size = end_addr - start_addr;
+        const size_t offset = start_addr - m_vaddress;
+        m_internal->m_device_memory.Map(m_daddress + offset, m_vaddress + offset, sub_size, m_asid);
+    });
+
+    // Add the mapping range to the split map, to register the map and overlaps.
+    m_internal->m_mapped_ranges.Add(start, size);
+    m_internal->m_temporary_set.Clear();
+    return m_daddress + static_cast<DAddr>(start - m_vaddress);
 }
 
 void HeapMapper::Unmap(VAddr start, size_t size) {
-    std::scoped_lock lk(m_internal->guard);
-    m_internal->base_set.clear();
-    m_internal->ForEachInOverlapCounter(m_internal->mapping_overlaps, start, size,
-                                        [this](VAddr start_addr, VAddr end_addr, int value) {
-                                            if (value <= 1) {
-                                                const IntervalType other{start_addr, end_addr};
-                                                m_internal->base_set.insert(other);
-                                            }
-                                        });
-    if (!m_internal->base_set.empty()) {
-        auto it = m_internal->base_set.begin();
-        auto end_it = m_internal->base_set.end();
-        for (; it != end_it; it++) {
-            const VAddr inter_addr_end = it->upper();
-            const VAddr inter_addr = it->lower();
-            const size_t offset = inter_addr - m_vaddress;
-            const size_t sub_size = inter_addr_end - inter_addr;
-            m_internal->device_memory.Unmap(m_daddress + offset, sub_size);
-        }
-    }
-    const IntervalType to_remove{start, start + size};
-    m_internal->RemoveEachInOverlapCounter(m_internal->mapping_overlaps, to_remove, -1);
-    m_internal->base_set.clear();
+    std::scoped_lock lk(m_internal->m_guard);
+
+    // Just subtract the range and whatever is deleted, unmap it.
+    m_internal->m_mapped_ranges.Subtract(start, size, [this](VAddr start_addr, VAddr end_addr) {
+        const size_t sub_size = end_addr - start_addr;
+        const size_t offset = start_addr - m_vaddress;
+        m_internal->m_device_memory.Unmap(m_daddress + offset, sub_size);
+    });
 }
 
 } // namespace Service::Nvidia::NvCore
diff --git a/src/core/hle/service/nvdrv/devices/nvhost_as_gpu.cpp b/src/core/hle/service/nvdrv/devices/nvhost_as_gpu.cpp
index e6646ba04..68fe38874 100644
--- a/src/core/hle/service/nvdrv/devices/nvhost_as_gpu.cpp
+++ b/src/core/hle/service/nvdrv/devices/nvhost_as_gpu.cpp
@@ -123,6 +123,8 @@ NvResult nvhost_as_gpu::AllocAsEx(IoctlAllocAsEx& params) {
         vm.va_range_end = params.va_range_end;
     }
 
+    const u64 max_big_page_bits = Common::Log2Ceil64(vm.va_range_end);
+
     const auto start_pages{static_cast<u32>(vm.va_range_start >> VM::PAGE_SIZE_BITS)};
     const auto end_pages{static_cast<u32>(vm.va_range_split >> VM::PAGE_SIZE_BITS)};
     vm.small_page_allocator = std::make_shared<VM::Allocator>(start_pages, end_pages);
@@ -132,8 +134,8 @@ NvResult nvhost_as_gpu::AllocAsEx(IoctlAllocAsEx& params) {
         static_cast<u32>((vm.va_range_end - vm.va_range_split) >> vm.big_page_size_bits)};
     vm.big_page_allocator = std::make_unique<VM::Allocator>(start_big_pages, end_big_pages);
 
-    gmmu = std::make_shared<Tegra::MemoryManager>(system, 40, vm.big_page_size_bits,
-                                                  VM::PAGE_SIZE_BITS);
+    gmmu = std::make_shared<Tegra::MemoryManager>(system, max_big_page_bits, vm.va_range_split,
+                                                  vm.big_page_size_bits, VM::PAGE_SIZE_BITS);
     system.GPU().InitAddressSpace(*gmmu);
     vm.initialised = true;
 
diff --git a/src/core/memory/cheat_engine.cpp b/src/core/memory/cheat_engine.cpp
index f3b8243d5..b84b57d92 100644
--- a/src/core/memory/cheat_engine.cpp
+++ b/src/core/memory/cheat_engine.cpp
@@ -5,6 +5,7 @@
 #include "common/hex_util.h"
 #include "common/microprofile.h"
 #include "common/swap.h"
+#include "core/arm/debug.h"
 #include "core/core.h"
 #include "core/core_timing.h"
 #include "core/hle/kernel/k_page_table.h"
@@ -64,7 +65,9 @@ void StandardVmCallbacks::MemoryWriteUnsafe(VAddr address, const void* data, u64
         return;
     }
 
-    system.ApplicationMemory().WriteBlock(address, data, size);
+    if (system.ApplicationMemory().WriteBlock(address, data, size)) {
+        Core::InvalidateInstructionCacheRange(system.ApplicationProcess(), address, size);
+    }
 }
 
 u64 StandardVmCallbacks::HidKeysDown() {