18 files changed, 1059 insertions, 924 deletions

diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index 188ca2097..fa4a25156 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -959,15 +959,24 @@ add_library(core STATIC
     hle/service/vi/display/vi_display.h
     hle/service/vi/layer/vi_layer.cpp
     hle/service/vi/layer/vi_layer.h
+    hle/service/vi/application_display_service.cpp
+    hle/service/vi/application_display_service.h
+    hle/service/vi/application_root_service.cpp
+    hle/service/vi/application_root_service.h
+    hle/service/vi/hos_binder_driver.cpp
+    hle/service/vi/hos_binder_driver.h
+    hle/service/vi/manager_display_service.cpp
+    hle/service/vi/manager_display_service.h
+    hle/service/vi/manager_root_service.cpp
+    hle/service/vi/manager_root_service.h
+    hle/service/vi/system_display_service.cpp
+    hle/service/vi/system_display_service.h
+    hle/service/vi/system_root_service.cpp
+    hle/service/vi/system_root_service.h
+    hle/service/vi/vi_results.h
+    hle/service/vi/vi_types.h
     hle/service/vi/vi.cpp
     hle/service/vi/vi.h
-    hle/service/vi/vi_m.cpp
-    hle/service/vi/vi_m.h
-    hle/service/vi/vi_s.cpp
-    hle/service/vi/vi_s.h
-    hle/service/vi/vi_types.h
-    hle/service/vi/vi_u.cpp
-    hle/service/vi/vi_u.h
     internal_network/network.cpp
     internal_network/network.h
     internal_network/network_interface.cpp
diff --git a/src/core/hle/service/vi/application_display_service.cpp b/src/core/hle/service/vi/application_display_service.cpp
new file mode 100644
index 000000000..ae0cb7a08
--- /dev/null
+++ b/src/core/hle/service/vi/application_display_service.cpp
@@ -0,0 +1,419 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "common/string_util.h"
+#include "core/hle/service/ipc_helpers.h"
+#include "core/hle/service/nvnflinger/nvnflinger.h"
+#include "core/hle/service/nvnflinger/parcel.h"
+#include "core/hle/service/vi/application_display_service.h"
+#include "core/hle/service/vi/hos_binder_driver.h"
+#include "core/hle/service/vi/manager_display_service.h"
+#include "core/hle/service/vi/system_display_service.h"
+#include "core/hle/service/vi/vi_results.h"
+
+namespace Service::VI {
+
+IApplicationDisplayService::IApplicationDisplayService(
+    Core::System& system_, Nvnflinger::Nvnflinger& nvnflinger_,
+    Nvnflinger::HosBinderDriverServer& hos_binder_driver_server_)
+    : ServiceFramework{system_, "IApplicationDisplayService"}, nvnflinger{nvnflinger_},
+      hos_binder_driver_server{hos_binder_driver_server_} {
+
+    static const FunctionInfo functions[] = {
+        {100, &IApplicationDisplayService::GetRelayService, "GetRelayService"},
+        {101, &IApplicationDisplayService::GetSystemDisplayService, "GetSystemDisplayService"},
+        {102, &IApplicationDisplayService::GetManagerDisplayService, "GetManagerDisplayService"},
+        {103, &IApplicationDisplayService::GetIndirectDisplayTransactionService,
+         "GetIndirectDisplayTransactionService"},
+        {1000, &IApplicationDisplayService::ListDisplays, "ListDisplays"},
+        {1010, &IApplicationDisplayService::OpenDisplay, "OpenDisplay"},
+        {1011, &IApplicationDisplayService::OpenDefaultDisplay, "OpenDefaultDisplay"},
+        {1020, &IApplicationDisplayService::CloseDisplay, "CloseDisplay"},
+        {1101, &IApplicationDisplayService::SetDisplayEnabled, "SetDisplayEnabled"},
+        {1102, &IApplicationDisplayService::GetDisplayResolution, "GetDisplayResolution"},
+        {2020, &IApplicationDisplayService::OpenLayer, "OpenLayer"},
+        {2021, &IApplicationDisplayService::CloseLayer, "CloseLayer"},
+        {2030, &IApplicationDisplayService::CreateStrayLayer, "CreateStrayLayer"},
+        {2031, &IApplicationDisplayService::DestroyStrayLayer, "DestroyStrayLayer"},
+        {2101, &IApplicationDisplayService::SetLayerScalingMode, "SetLayerScalingMode"},
+        {2102, &IApplicationDisplayService::ConvertScalingMode, "ConvertScalingMode"},
+        {2450, &IApplicationDisplayService::GetIndirectLayerImageMap, "GetIndirectLayerImageMap"},
+        {2451, nullptr, "GetIndirectLayerImageCropMap"},
+        {2460, &IApplicationDisplayService::GetIndirectLayerImageRequiredMemoryInfo,
+         "GetIndirectLayerImageRequiredMemoryInfo"},
+        {5202, &IApplicationDisplayService::GetDisplayVsyncEvent, "GetDisplayVsyncEvent"},
+        {5203, nullptr, "GetDisplayVsyncEventForDebug"},
+    };
+    RegisterHandlers(functions);
+}
+
+IApplicationDisplayService::~IApplicationDisplayService() {
+    for (const auto layer_id : stray_layer_ids) {
+        nvnflinger.DestroyLayer(layer_id);
+    }
+}
+
+void IApplicationDisplayService::GetRelayService(HLERequestContext& ctx) {
+    LOG_WARNING(Service_VI, "(STUBBED) called");
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(ResultSuccess);
+    rb.PushIpcInterface<IHOSBinderDriver>(system, hos_binder_driver_server);
+}
+
+void IApplicationDisplayService::GetSystemDisplayService(HLERequestContext& ctx) {
+    LOG_WARNING(Service_VI, "(STUBBED) called");
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(ResultSuccess);
+    rb.PushIpcInterface<ISystemDisplayService>(system, nvnflinger);
+}
+
+void IApplicationDisplayService::GetManagerDisplayService(HLERequestContext& ctx) {
+    LOG_WARNING(Service_VI, "(STUBBED) called");
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(ResultSuccess);
+    rb.PushIpcInterface<IManagerDisplayService>(system, nvnflinger);
+}
+
+void IApplicationDisplayService::GetIndirectDisplayTransactionService(HLERequestContext& ctx) {
+    LOG_WARNING(Service_VI, "(STUBBED) called");
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(ResultSuccess);
+    rb.PushIpcInterface<IHOSBinderDriver>(system, hos_binder_driver_server);
+}
+
+void IApplicationDisplayService::OpenDisplay(HLERequestContext& ctx) {
+    LOG_WARNING(Service_VI, "(STUBBED) called");
+
+    IPC::RequestParser rp{ctx};
+    const auto name_buf = rp.PopRaw<std::array<char, 0x40>>();
+
+    OpenDisplayImpl(ctx, std::string_view{name_buf.data(), name_buf.size()});
+}
+
+void IApplicationDisplayService::OpenDefaultDisplay(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_VI, "called");
+
+    OpenDisplayImpl(ctx, "Default");
+}
+
+void IApplicationDisplayService::OpenDisplayImpl(HLERequestContext& ctx, std::string_view name) {
+    const auto trim_pos = name.find('\0');
+
+    if (trim_pos != std::string_view::npos) {
+        name.remove_suffix(name.size() - trim_pos);
+    }
+
+    ASSERT_MSG(name == "Default", "Non-default displays aren't supported yet");
+
+    const auto display_id = nvnflinger.OpenDisplay(name);
+    if (!display_id) {
+        LOG_ERROR(Service_VI, "Display not found! display_name={}", name);
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(ResultNotFound);
+        return;
+    }
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(ResultSuccess);
+    rb.Push<u64>(*display_id);
+}
+
+void IApplicationDisplayService::CloseDisplay(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const u64 display_id = rp.Pop<u64>();
+
+    const Result rc = nvnflinger.CloseDisplay(display_id) ? ResultSuccess : ResultUnknown;
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(rc);
+}
+
+// This literally does nothing internally in the actual service itself,
+// and just returns a successful result code regardless of the input.
+void IApplicationDisplayService::SetDisplayEnabled(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_VI, "called.");
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+void IApplicationDisplayService::GetDisplayResolution(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const u64 display_id = rp.Pop<u64>();
+
+    LOG_DEBUG(Service_VI, "called. display_id=0x{:016X}", display_id);
+
+    IPC::ResponseBuilder rb{ctx, 6};
+    rb.Push(ResultSuccess);
+
+    // This only returns the fixed values of 1280x720 and makes no distinguishing
+    // between docked and undocked dimensions. We take the liberty of applying
+    // the resolution scaling factor here.
+    rb.Push(static_cast<u64>(DisplayResolution::UndockedWidth));
+    rb.Push(static_cast<u64>(DisplayResolution::UndockedHeight));
+}
+
+void IApplicationDisplayService::SetLayerScalingMode(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto scaling_mode = rp.PopEnum<NintendoScaleMode>();
+    const u64 unknown = rp.Pop<u64>();
+
+    LOG_DEBUG(Service_VI, "called. scaling_mode=0x{:08X}, unknown=0x{:016X}", scaling_mode,
+              unknown);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+
+    if (scaling_mode > NintendoScaleMode::PreserveAspectRatio) {
+        LOG_ERROR(Service_VI, "Invalid scaling mode provided.");
+        rb.Push(ResultOperationFailed);
+        return;
+    }
+
+    if (scaling_mode != NintendoScaleMode::ScaleToWindow &&
+        scaling_mode != NintendoScaleMode::PreserveAspectRatio) {
+        LOG_ERROR(Service_VI, "Unsupported scaling mode supplied.");
+        rb.Push(ResultNotSupported);
+        return;
+    }
+
+    rb.Push(ResultSuccess);
+}
+
+void IApplicationDisplayService::ListDisplays(HLERequestContext& ctx) {
+    LOG_WARNING(Service_VI, "(STUBBED) called");
+
+    const DisplayInfo display_info;
+    ctx.WriteBuffer(&display_info, sizeof(DisplayInfo));
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(ResultSuccess);
+    rb.Push<u64>(1);
+}
+
+void IApplicationDisplayService::OpenLayer(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto name_buf = rp.PopRaw<std::array<u8, 0x40>>();
+    const std::string display_name(Common::StringFromBuffer(name_buf));
+
+    const u64 layer_id = rp.Pop<u64>();
+    const u64 aruid = rp.Pop<u64>();
+
+    LOG_DEBUG(Service_VI, "called. layer_id=0x{:016X}, aruid=0x{:016X}", layer_id, aruid);
+
+    const auto display_id = nvnflinger.OpenDisplay(display_name);
+    if (!display_id) {
+        LOG_ERROR(Service_VI, "Layer not found! layer_id={}", layer_id);
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(ResultNotFound);
+        return;
+    }
+
+    const auto buffer_queue_id = nvnflinger.FindBufferQueueId(*display_id, layer_id);
+    if (!buffer_queue_id) {
+        LOG_ERROR(Service_VI, "Buffer queue id not found! display_id={}", *display_id);
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(ResultNotFound);
+        return;
+    }
+
+    if (!nvnflinger.OpenLayer(layer_id)) {
+        LOG_WARNING(Service_VI, "Tried to open layer which was already open");
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(ResultOperationFailed);
+        return;
+    }
+
+    android::OutputParcel parcel;
+    parcel.WriteInterface(NativeWindow{*buffer_queue_id});
+
+    const auto buffer_size = ctx.WriteBuffer(parcel.Serialize());
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(ResultSuccess);
+    rb.Push<u64>(buffer_size);
+}
+
+void IApplicationDisplayService::CloseLayer(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto layer_id{rp.Pop<u64>()};
+
+    LOG_DEBUG(Service_VI, "called. layer_id=0x{:016X}", layer_id);
+
+    if (!nvnflinger.CloseLayer(layer_id)) {
+        LOG_WARNING(Service_VI, "Tried to close layer which was not open");
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(ResultOperationFailed);
+        return;
+    }
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+void IApplicationDisplayService::CreateStrayLayer(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const u32 flags = rp.Pop<u32>();
+    rp.Pop<u32>(); // padding
+    const u64 display_id = rp.Pop<u64>();
+
+    LOG_DEBUG(Service_VI, "called. flags=0x{:08X}, display_id=0x{:016X}", flags, display_id);
+
+    // TODO(Subv): What's the difference between a Stray and a Managed layer?
+
+    const auto layer_id = nvnflinger.CreateLayer(display_id);
+    if (!layer_id) {
+        LOG_ERROR(Service_VI, "Layer not found! display_id={}", display_id);
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(ResultNotFound);
+        return;
+    }
+
+    stray_layer_ids.push_back(*layer_id);
+    const auto buffer_queue_id = nvnflinger.FindBufferQueueId(display_id, *layer_id);
+    if (!buffer_queue_id) {
+        LOG_ERROR(Service_VI, "Buffer queue id not found! display_id={}", display_id);
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(ResultNotFound);
+        return;
+    }
+
+    android::OutputParcel parcel;
+    parcel.WriteInterface(NativeWindow{*buffer_queue_id});
+
+    const auto buffer_size = ctx.WriteBuffer(parcel.Serialize());
+
+    IPC::ResponseBuilder rb{ctx, 6};
+    rb.Push(ResultSuccess);
+    rb.Push(*layer_id);
+    rb.Push<u64>(buffer_size);
+}
+
+void IApplicationDisplayService::DestroyStrayLayer(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const u64 layer_id = rp.Pop<u64>();
+
+    LOG_WARNING(Service_VI, "(STUBBED) called. layer_id=0x{:016X}", layer_id);
+    nvnflinger.DestroyLayer(layer_id);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+void IApplicationDisplayService::GetDisplayVsyncEvent(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const u64 display_id = rp.Pop<u64>();
+
+    LOG_DEBUG(Service_VI, "called. display_id={}", display_id);
+
+    Kernel::KReadableEvent* vsync_event{};
+    const auto result = nvnflinger.FindVsyncEvent(&vsync_event, display_id);
+    if (result != ResultSuccess) {
+        if (result == ResultNotFound) {
+            LOG_ERROR(Service_VI, "Vsync event was not found for display_id={}", display_id);
+        }
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(result);
+        return;
+    }
+    if (vsync_event_fetched) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(VI::ResultPermissionDenied);
+        return;
+    }
+    vsync_event_fetched = true;
+
+    IPC::ResponseBuilder rb{ctx, 2, 1};
+    rb.Push(ResultSuccess);
+    rb.PushCopyObjects(vsync_event);
+}
+
+void IApplicationDisplayService::ConvertScalingMode(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto mode = rp.PopEnum<NintendoScaleMode>();
+    LOG_DEBUG(Service_VI, "called mode={}", mode);
+
+    ConvertedScaleMode converted_mode{};
+    const auto result = ConvertScalingModeImpl(&converted_mode, mode);
+
+    if (result == ResultSuccess) {
+        IPC::ResponseBuilder rb{ctx, 4};
+        rb.Push(ResultSuccess);
+        rb.PushEnum(converted_mode);
+    } else {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(result);
+    }
+}
+
+void IApplicationDisplayService::GetIndirectLayerImageMap(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto width = rp.Pop<s64>();
+    const auto height = rp.Pop<s64>();
+    const auto indirect_layer_consumer_handle = rp.Pop<u64>();
+    const auto applet_resource_user_id = rp.Pop<u64>();
+
+    LOG_WARNING(Service_VI,
+                "(STUBBED) called, width={}, height={}, indirect_layer_consumer_handle={}, "
+                "applet_resource_user_id={}",
+                width, height, indirect_layer_consumer_handle, applet_resource_user_id);
+
+    std::vector<u8> out_buffer(0x46);
+    ctx.WriteBuffer(out_buffer);
+
+    // TODO: Figure out what these are
+
+    constexpr s64 unknown_result_1 = 0;
+    constexpr s64 unknown_result_2 = 0;
+
+    IPC::ResponseBuilder rb{ctx, 6};
+    rb.Push(unknown_result_1);
+    rb.Push(unknown_result_2);
+    rb.Push(ResultSuccess);
+}
+
+void IApplicationDisplayService::GetIndirectLayerImageRequiredMemoryInfo(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto width = rp.Pop<u64>();
+    const auto height = rp.Pop<u64>();
+    LOG_DEBUG(Service_VI, "called width={}, height={}", width, height);
+
+    constexpr u64 base_size = 0x20000;
+    constexpr u64 alignment = 0x1000;
+    const auto texture_size = width * height * 4;
+    const auto out_size = (texture_size + base_size - 1) / base_size * base_size;
+
+    IPC::ResponseBuilder rb{ctx, 6};
+    rb.Push(ResultSuccess);
+    rb.Push(out_size);
+    rb.Push(alignment);
+}
+
+Result IApplicationDisplayService::ConvertScalingModeImpl(ConvertedScaleMode* out_scaling_mode,
+                                                          NintendoScaleMode mode) {
+    switch (mode) {
+    case NintendoScaleMode::None:
+        *out_scaling_mode = ConvertedScaleMode::None;
+        return ResultSuccess;
+    case NintendoScaleMode::Freeze:
+        *out_scaling_mode = ConvertedScaleMode::Freeze;
+        return ResultSuccess;
+    case NintendoScaleMode::ScaleToWindow:
+        *out_scaling_mode = ConvertedScaleMode::ScaleToWindow;
+        return ResultSuccess;
+    case NintendoScaleMode::ScaleAndCrop:
+        *out_scaling_mode = ConvertedScaleMode::ScaleAndCrop;
+        return ResultSuccess;
+    case NintendoScaleMode::PreserveAspectRatio:
+        *out_scaling_mode = ConvertedScaleMode::PreserveAspectRatio;
+        return ResultSuccess;
+    default:
+        LOG_ERROR(Service_VI, "Invalid scaling mode specified, mode={}", mode);
+        return ResultOperationFailed;
+    }
+}
+
+} // namespace Service::VI
diff --git a/src/core/hle/service/vi/application_display_service.h b/src/core/hle/service/vi/application_display_service.h
new file mode 100644
index 000000000..51ae2c472
--- /dev/null
+++ b/src/core/hle/service/vi/application_display_service.h
@@ -0,0 +1,48 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/service.h"
+#include "core/hle/service/vi/vi_types.h"
+
+namespace Service::VI {
+
+class IApplicationDisplayService final : public ServiceFramework<IApplicationDisplayService> {
+public:
+    IApplicationDisplayService(Core::System& system_, Nvnflinger::Nvnflinger& nvnflinger_,
+                               Nvnflinger::HosBinderDriverServer& hos_binder_driver_server_);
+    ~IApplicationDisplayService() override;
+
+private:
+    void GetRelayService(HLERequestContext& ctx);
+    void GetSystemDisplayService(HLERequestContext& ctx);
+    void GetManagerDisplayService(HLERequestContext& ctx);
+    void GetIndirectDisplayTransactionService(HLERequestContext& ctx);
+    void OpenDisplay(HLERequestContext& ctx);
+    void OpenDefaultDisplay(HLERequestContext& ctx);
+    void OpenDisplayImpl(HLERequestContext& ctx, std::string_view name);
+    void CloseDisplay(HLERequestContext& ctx);
+    void SetDisplayEnabled(HLERequestContext& ctx);
+    void GetDisplayResolution(HLERequestContext& ctx);
+    void SetLayerScalingMode(HLERequestContext& ctx);
+    void ListDisplays(HLERequestContext& ctx);
+    void OpenLayer(HLERequestContext& ctx);
+    void CloseLayer(HLERequestContext& ctx);
+    void CreateStrayLayer(HLERequestContext& ctx);
+    void DestroyStrayLayer(HLERequestContext& ctx);
+    void GetDisplayVsyncEvent(HLERequestContext& ctx);
+    void ConvertScalingMode(HLERequestContext& ctx);
+    void GetIndirectLayerImageMap(HLERequestContext& ctx);
+    void GetIndirectLayerImageRequiredMemoryInfo(HLERequestContext& ctx);
+
+private:
+    static Result ConvertScalingModeImpl(ConvertedScaleMode* out_scaling_mode,
+                                         NintendoScaleMode mode);
+
+private:
+    Nvnflinger::Nvnflinger& nvnflinger;
+    Nvnflinger::HosBinderDriverServer& hos_binder_driver_server;
+    std::vector<u64> stray_layer_ids;
+    bool vsync_event_fetched{false};
+};
+
+} // namespace Service::VI
diff --git a/src/core/hle/service/vi/vi_u.cpp b/src/core/hle/service/vi/application_root_service.cpp
index 9845e2c57..caba3d1d9 100644
--- a/src/core/hle/service/vi/vi_u.cpp
+++ b/src/core/hle/service/vi/application_root_service.cpp
@@ -1,27 +1,27 @@
 // SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-#include "common/logging/log.h"
+#include "core/hle/service/vi/application_root_service.h"
 #include "core/hle/service/vi/vi.h"
 #include "core/hle/service/vi/vi_types.h"
-#include "core/hle/service/vi/vi_u.h"
 
 namespace Service::VI {
 
-VI_U::VI_U(Core::System& system_, Nvnflinger::Nvnflinger& nv_flinger_,
-           Nvnflinger::HosBinderDriverServer& hos_binder_driver_server_)
+IApplicationRootService::IApplicationRootService(
+    Core::System& system_, Nvnflinger::Nvnflinger& nv_flinger_,
+    Nvnflinger::HosBinderDriverServer& hos_binder_driver_server_)
     : ServiceFramework{system_, "vi:u"}, nv_flinger{nv_flinger_},
       hos_binder_driver_server{hos_binder_driver_server_} {
     static const FunctionInfo functions[] = {
-        {0, &VI_U::GetDisplayService, "GetDisplayService"},
+        {0, &IApplicationRootService::GetDisplayService, "GetDisplayService"},
         {1, nullptr, "GetDisplayServiceWithProxyNameExchange"},
     };
     RegisterHandlers(functions);
 }
 
-VI_U::~VI_U() = default;
+IApplicationRootService::~IApplicationRootService() = default;
 
-void VI_U::GetDisplayService(HLERequestContext& ctx) {
+void IApplicationRootService::GetDisplayService(HLERequestContext& ctx) {
     LOG_DEBUG(Service_VI, "called");
 
     detail::GetDisplayServiceImpl(ctx, system, nv_flinger, hos_binder_driver_server,
diff --git a/src/core/hle/service/vi/vi_s.h b/src/core/hle/service/vi/application_root_service.h
index 157839c91..231d26891 100644
--- a/src/core/hle/service/vi/vi_s.h
+++ b/src/core/hle/service/vi/application_root_service.h
@@ -16,11 +16,11 @@ class Nvnflinger;
 
 namespace Service::VI {
 
-class VI_S final : public ServiceFramework<VI_S> {
+class IApplicationRootService final : public ServiceFramework<IApplicationRootService> {
 public:
-    explicit VI_S(Core::System& system_, Nvnflinger::Nvnflinger& nv_flinger_,
-                  Nvnflinger::HosBinderDriverServer& hos_binder_driver_server_);
-    ~VI_S() override;
+    explicit IApplicationRootService(Core::System& system_, Nvnflinger::Nvnflinger& nv_flinger_,
+                                     Nvnflinger::HosBinderDriverServer& hos_binder_driver_server_);
+    ~IApplicationRootService() override;
 
 private:
     void GetDisplayService(HLERequestContext& ctx);
diff --git a/src/core/hle/service/vi/hos_binder_driver.cpp b/src/core/hle/service/vi/hos_binder_driver.cpp
new file mode 100644
index 000000000..e04acc297
--- /dev/null
+++ b/src/core/hle/service/vi/hos_binder_driver.cpp
@@ -0,0 +1,64 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/ipc_helpers.h"
+#include "core/hle/service/nvnflinger/binder.h"
+#include "core/hle/service/nvnflinger/hos_binder_driver_server.h"
+#include "core/hle/service/vi/hos_binder_driver.h"
+
+namespace Service::VI {
+
+IHOSBinderDriver::IHOSBinderDriver(Core::System& system_,
+                                   Nvnflinger::HosBinderDriverServer& server_)
+    : ServiceFramework{system_, "IHOSBinderDriver"}, server(server_) {
+    static const FunctionInfo functions[] = {
+        {0, &IHOSBinderDriver::TransactParcel, "TransactParcel"},
+        {1, &IHOSBinderDriver::AdjustRefcount, "AdjustRefcount"},
+        {2, &IHOSBinderDriver::GetNativeHandle, "GetNativeHandle"},
+        {3, &IHOSBinderDriver::TransactParcel, "TransactParcelAuto"},
+    };
+    RegisterHandlers(functions);
+}
+
+IHOSBinderDriver::~IHOSBinderDriver() = default;
+
+void IHOSBinderDriver::TransactParcel(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const u32 id = rp.Pop<u32>();
+    const auto transaction = static_cast<android::TransactionId>(rp.Pop<u32>());
+    const u32 flags = rp.Pop<u32>();
+
+    LOG_DEBUG(Service_VI, "called. id=0x{:08X} transaction={:X}, flags=0x{:08X}", id, transaction,
+              flags);
+
+    server.TryGetProducer(id)->Transact(ctx, transaction, flags);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+void IHOSBinderDriver::AdjustRefcount(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const u32 id = rp.Pop<u32>();
+    const s32 addval = rp.PopRaw<s32>();
+    const u32 type = rp.Pop<u32>();
+
+    LOG_WARNING(Service_VI, "(STUBBED) called id={}, addval={:08X}, type={:08X}", id, addval, type);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+void IHOSBinderDriver::GetNativeHandle(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const u32 id = rp.Pop<u32>();
+    const u32 unknown = rp.Pop<u32>();
+
+    LOG_WARNING(Service_VI, "(STUBBED) called id={}, unknown={:08X}", id, unknown);
+
+    IPC::ResponseBuilder rb{ctx, 2, 1};
+    rb.Push(ResultSuccess);
+    rb.PushCopyObjects(server.TryGetProducer(id)->GetNativeHandle());
+}
+
+} // namespace Service::VI
diff --git a/src/core/hle/service/vi/hos_binder_driver.h b/src/core/hle/service/vi/hos_binder_driver.h
new file mode 100644
index 000000000..24780c7d8
--- /dev/null
+++ b/src/core/hle/service/vi/hos_binder_driver.h
@@ -0,0 +1,22 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/service.h"
+
+namespace Service::VI {
+
+class IHOSBinderDriver final : public ServiceFramework<IHOSBinderDriver> {
+public:
+    explicit IHOSBinderDriver(Core::System& system_, Nvnflinger::HosBinderDriverServer& server_);
+    ~IHOSBinderDriver() override;
+
+private:
+    void TransactParcel(HLERequestContext& ctx);
+    void AdjustRefcount(HLERequestContext& ctx);
+    void GetNativeHandle(HLERequestContext& ctx);
+
+private:
+    Nvnflinger::HosBinderDriverServer& server;
+};
+
+} // namespace Service::VI
diff --git a/src/core/hle/service/vi/manager_display_service.cpp b/src/core/hle/service/vi/manager_display_service.cpp
new file mode 100644
index 000000000..650b420cc
--- /dev/null
+++ b/src/core/hle/service/vi/manager_display_service.cpp
@@ -0,0 +1,164 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/ipc_helpers.h"
+#include "core/hle/service/nvnflinger/nvnflinger.h"
+#include "core/hle/service/vi/manager_display_service.h"
+#include "core/hle/service/vi/vi_results.h"
+
+namespace Service::VI {
+
+IManagerDisplayService::IManagerDisplayService(Core::System& system_,
+                                               Nvnflinger::Nvnflinger& nvnflinger_)
+    : ServiceFramework{system_, "IManagerDisplayService"}, nvnflinger{nvnflinger_} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {200, nullptr, "AllocateProcessHeapBlock"},
+        {201, nullptr, "FreeProcessHeapBlock"},
+        {1020, &IManagerDisplayService::CloseDisplay, "CloseDisplay"},
+        {1102, nullptr, "GetDisplayResolution"},
+        {2010, &IManagerDisplayService::CreateManagedLayer, "CreateManagedLayer"},
+        {2011, nullptr, "DestroyManagedLayer"},
+        {2012, nullptr, "CreateStrayLayer"},
+        {2050, nullptr, "CreateIndirectLayer"},
+        {2051, nullptr, "DestroyIndirectLayer"},
+        {2052, nullptr, "CreateIndirectProducerEndPoint"},
+        {2053, nullptr, "DestroyIndirectProducerEndPoint"},
+        {2054, nullptr, "CreateIndirectConsumerEndPoint"},
+        {2055, nullptr, "DestroyIndirectConsumerEndPoint"},
+        {2060, nullptr, "CreateWatermarkCompositor"},
+        {2062, nullptr, "SetWatermarkText"},
+        {2063, nullptr, "SetWatermarkLayerStacks"},
+        {2300, nullptr, "AcquireLayerTexturePresentingEvent"},
+        {2301, nullptr, "ReleaseLayerTexturePresentingEvent"},
+        {2302, nullptr, "GetDisplayHotplugEvent"},
+        {2303, nullptr, "GetDisplayModeChangedEvent"},
+        {2402, nullptr, "GetDisplayHotplugState"},
+        {2501, nullptr, "GetCompositorErrorInfo"},
+        {2601, nullptr, "GetDisplayErrorEvent"},
+        {2701, nullptr, "GetDisplayFatalErrorEvent"},
+        {4201, nullptr, "SetDisplayAlpha"},
+        {4203, nullptr, "SetDisplayLayerStack"},
+        {4205, nullptr, "SetDisplayPowerState"},
+        {4206, nullptr, "SetDefaultDisplay"},
+        {4207, nullptr, "ResetDisplayPanel"},
+        {4208, nullptr, "SetDisplayFatalErrorEnabled"},
+        {4209, nullptr, "IsDisplayPanelOn"},
+        {4300, nullptr, "GetInternalPanelId"},
+        {6000, &IManagerDisplayService::AddToLayerStack, "AddToLayerStack"},
+        {6001, nullptr, "RemoveFromLayerStack"},
+        {6002, &IManagerDisplayService::SetLayerVisibility, "SetLayerVisibility"},
+        {6003, nullptr, "SetLayerConfig"},
+        {6004, nullptr, "AttachLayerPresentationTracer"},
+        {6005, nullptr, "DetachLayerPresentationTracer"},
+        {6006, nullptr, "StartLayerPresentationRecording"},
+        {6007, nullptr, "StopLayerPresentationRecording"},
+        {6008, nullptr, "StartLayerPresentationFenceWait"},
+        {6009, nullptr, "StopLayerPresentationFenceWait"},
+        {6010, nullptr, "GetLayerPresentationAllFencesExpiredEvent"},
+        {6011, nullptr, "EnableLayerAutoClearTransitionBuffer"},
+        {6012, nullptr, "DisableLayerAutoClearTransitionBuffer"},
+        {6013, nullptr, "SetLayerOpacity"},
+        {6014, nullptr, "AttachLayerWatermarkCompositor"},
+        {6015, nullptr, "DetachLayerWatermarkCompositor"},
+        {7000, nullptr, "SetContentVisibility"},
+        {8000, nullptr, "SetConductorLayer"},
+        {8001, nullptr, "SetTimestampTracking"},
+        {8100, nullptr, "SetIndirectProducerFlipOffset"},
+        {8200, nullptr, "CreateSharedBufferStaticStorage"},
+        {8201, nullptr, "CreateSharedBufferTransferMemory"},
+        {8202, nullptr, "DestroySharedBuffer"},
+        {8203, nullptr, "BindSharedLowLevelLayerToManagedLayer"},
+        {8204, nullptr, "BindSharedLowLevelLayerToIndirectLayer"},
+        {8207, nullptr, "UnbindSharedLowLevelLayer"},
+        {8208, nullptr, "ConnectSharedLowLevelLayerToSharedBuffer"},
+        {8209, nullptr, "DisconnectSharedLowLevelLayerFromSharedBuffer"},
+        {8210, nullptr, "CreateSharedLayer"},
+        {8211, nullptr, "DestroySharedLayer"},
+        {8216, nullptr, "AttachSharedLayerToLowLevelLayer"},
+        {8217, nullptr, "ForceDetachSharedLayerFromLowLevelLayer"},
+        {8218, nullptr, "StartDetachSharedLayerFromLowLevelLayer"},
+        {8219, nullptr, "FinishDetachSharedLayerFromLowLevelLayer"},
+        {8220, nullptr, "GetSharedLayerDetachReadyEvent"},
+        {8221, nullptr, "GetSharedLowLevelLayerSynchronizedEvent"},
+        {8222, nullptr, "CheckSharedLowLevelLayerSynchronized"},
+        {8223, nullptr, "RegisterSharedBufferImporterAruid"},
+        {8224, nullptr, "UnregisterSharedBufferImporterAruid"},
+        {8227, nullptr, "CreateSharedBufferProcessHeap"},
+        {8228, nullptr, "GetSharedLayerLayerStacks"},
+        {8229, nullptr, "SetSharedLayerLayerStacks"},
+        {8291, nullptr, "PresentDetachedSharedFrameBufferToLowLevelLayer"},
+        {8292, nullptr, "FillDetachedSharedFrameBufferColor"},
+        {8293, nullptr, "GetDetachedSharedFrameBufferImage"},
+        {8294, nullptr, "SetDetachedSharedFrameBufferImage"},
+        {8295, nullptr, "CopyDetachedSharedFrameBufferImage"},
+        {8296, nullptr, "SetDetachedSharedFrameBufferSubImage"},
+        {8297, nullptr, "GetSharedFrameBufferContentParameter"},
+        {8298, nullptr, "ExpandStartupLogoOnSharedFrameBuffer"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+IManagerDisplayService::~IManagerDisplayService() = default;
+
+void IManagerDisplayService::CloseDisplay(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const u64 display = rp.Pop<u64>();
+
+    const Result rc = nvnflinger.CloseDisplay(display) ? ResultSuccess : ResultUnknown;
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(rc);
+}
+
+void IManagerDisplayService::CreateManagedLayer(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const u32 unknown = rp.Pop<u32>();
+    rp.Skip(1, false);
+    const u64 display = rp.Pop<u64>();
+    const u64 aruid = rp.Pop<u64>();
+
+    LOG_WARNING(Service_VI,
+                "(STUBBED) called. unknown=0x{:08X}, display=0x{:016X}, aruid=0x{:016X}", unknown,
+                display, aruid);
+
+    const auto layer_id = nvnflinger.CreateLayer(display);
+    if (!layer_id) {
+        LOG_ERROR(Service_VI, "Layer not found! display=0x{:016X}", display);
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(ResultNotFound);
+        return;
+    }
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(ResultSuccess);
+    rb.Push(*layer_id);
+}
+
+void IManagerDisplayService::AddToLayerStack(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const u32 stack = rp.Pop<u32>();
+    const u64 layer_id = rp.Pop<u64>();
+
+    LOG_WARNING(Service_VI, "(STUBBED) called. stack=0x{:08X}, layer_id=0x{:016X}", stack,
+                layer_id);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+void IManagerDisplayService::SetLayerVisibility(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const u64 layer_id = rp.Pop<u64>();
+    const bool visibility = rp.Pop<bool>();
+
+    LOG_WARNING(Service_VI, "(STUBBED) called, layer_id=0x{:X}, visibility={}", layer_id,
+                visibility);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+} // namespace Service::VI
diff --git a/src/core/hle/service/vi/manager_display_service.h b/src/core/hle/service/vi/manager_display_service.h
new file mode 100644
index 000000000..6a5554eff
--- /dev/null
+++ b/src/core/hle/service/vi/manager_display_service.h
@@ -0,0 +1,23 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/service.h"
+
+namespace Service::VI {
+
+class IManagerDisplayService final : public ServiceFramework<IManagerDisplayService> {
+public:
+    explicit IManagerDisplayService(Core::System& system_, Nvnflinger::Nvnflinger& nvnflinger_);
+    ~IManagerDisplayService() override;
+
+private:
+    void CloseDisplay(HLERequestContext& ctx);
+    void CreateManagedLayer(HLERequestContext& ctx);
+    void AddToLayerStack(HLERequestContext& ctx);
+    void SetLayerVisibility(HLERequestContext& ctx);
+
+private:
+    Nvnflinger::Nvnflinger& nvnflinger;
+};
+
+} // namespace Service::VI
diff --git a/src/core/hle/service/vi/vi_m.cpp b/src/core/hle/service/vi/manager_root_service.cpp
index b1b98cf11..3ab88111d 100644
--- a/src/core/hle/service/vi/vi_m.cpp
+++ b/src/core/hle/service/vi/manager_root_service.cpp
@@ -1,19 +1,19 @@
 // SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-#include "common/logging/log.h"
+#include "core/hle/service/vi/manager_root_service.h"
 #include "core/hle/service/vi/vi.h"
-#include "core/hle/service/vi/vi_m.h"
 #include "core/hle/service/vi/vi_types.h"
 
 namespace Service::VI {
 
-VI_M::VI_M(Core::System& system_, Nvnflinger::Nvnflinger& nv_flinger_,
-           Nvnflinger::HosBinderDriverServer& hos_binder_driver_server_)
+IManagerRootService::IManagerRootService(
+    Core::System& system_, Nvnflinger::Nvnflinger& nv_flinger_,
+    Nvnflinger::HosBinderDriverServer& hos_binder_driver_server_)
     : ServiceFramework{system_, "vi:m"}, nv_flinger{nv_flinger_},
       hos_binder_driver_server{hos_binder_driver_server_} {
     static const FunctionInfo functions[] = {
-        {2, &VI_M::GetDisplayService, "GetDisplayService"},
+        {2, &IManagerRootService::GetDisplayService, "GetDisplayService"},
         {3, nullptr, "GetDisplayServiceWithProxyNameExchange"},
         {100, nullptr, "PrepareFatal"},
         {101, nullptr, "ShowFatal"},
@@ -23,9 +23,9 @@ VI_M::VI_M(Core::System& system_, Nvnflinger::Nvnflinger& nv_flinger_,
     RegisterHandlers(functions);
 }
 
-VI_M::~VI_M() = default;
+IManagerRootService::~IManagerRootService() = default;
 
-void VI_M::GetDisplayService(HLERequestContext& ctx) {
+void IManagerRootService::GetDisplayService(HLERequestContext& ctx) {
     LOG_DEBUG(Service_VI, "called");
 
     detail::GetDisplayServiceImpl(ctx, system, nv_flinger, hos_binder_driver_server,
diff --git a/src/core/hle/service/vi/vi_u.h b/src/core/hle/service/vi/manager_root_service.h
index 5d9ca54c6..3776619ad 100644
--- a/src/core/hle/service/vi/vi_u.h
+++ b/src/core/hle/service/vi/manager_root_service.h
@@ -16,11 +16,11 @@ class Nvnflinger;
 
 namespace Service::VI {
 
-class VI_U final : public ServiceFramework<VI_U> {
+class IManagerRootService final : public ServiceFramework<IManagerRootService> {
 public:
-    explicit VI_U(Core::System& system_, Nvnflinger::Nvnflinger& nv_flinger_,
-                  Nvnflinger::HosBinderDriverServer& hos_binder_driver_server_);
-    ~VI_U() override;
+    explicit IManagerRootService(Core::System& system_, Nvnflinger::Nvnflinger& nv_flinger_,
+                                 Nvnflinger::HosBinderDriverServer& hos_binder_driver_server_);
+    ~IManagerRootService() override;
 
 private:
     void GetDisplayService(HLERequestContext& ctx);
diff --git a/src/core/hle/service/vi/system_display_service.cpp b/src/core/hle/service/vi/system_display_service.cpp
new file mode 100644
index 000000000..b40321d45
--- /dev/null
+++ b/src/core/hle/service/vi/system_display_service.cpp
@@ -0,0 +1,218 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "common/settings.h"
+#include "core/hle/service/ipc_helpers.h"
+#include "core/hle/service/nvnflinger/fb_share_buffer_manager.h"
+#include "core/hle/service/vi/system_display_service.h"
+#include "core/hle/service/vi/vi_types.h"
+
+namespace Service::VI {
+
+ISystemDisplayService::ISystemDisplayService(Core::System& system_,
+                                             Nvnflinger::Nvnflinger& nvnflinger_)
+    : ServiceFramework{system_, "ISystemDisplayService"}, nvnflinger{nvnflinger_} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {1200, nullptr, "GetZOrderCountMin"},
+        {1202, nullptr, "GetZOrderCountMax"},
+        {1203, nullptr, "GetDisplayLogicalResolution"},
+        {1204, nullptr, "SetDisplayMagnification"},
+        {2201, nullptr, "SetLayerPosition"},
+        {2203, nullptr, "SetLayerSize"},
+        {2204, nullptr, "GetLayerZ"},
+        {2205, &ISystemDisplayService::SetLayerZ, "SetLayerZ"},
+        {2207, &ISystemDisplayService::SetLayerVisibility, "SetLayerVisibility"},
+        {2209, nullptr, "SetLayerAlpha"},
+        {2210, nullptr, "SetLayerPositionAndSize"},
+        {2312, nullptr, "CreateStrayLayer"},
+        {2400, nullptr, "OpenIndirectLayer"},
+        {2401, nullptr, "CloseIndirectLayer"},
+        {2402, nullptr, "FlipIndirectLayer"},
+        {3000, nullptr, "ListDisplayModes"},
+        {3001, nullptr, "ListDisplayRgbRanges"},
+        {3002, nullptr, "ListDisplayContentTypes"},
+        {3200, &ISystemDisplayService::GetDisplayMode, "GetDisplayMode"},
+        {3201, nullptr, "SetDisplayMode"},
+        {3202, nullptr, "GetDisplayUnderscan"},
+        {3203, nullptr, "SetDisplayUnderscan"},
+        {3204, nullptr, "GetDisplayContentType"},
+        {3205, nullptr, "SetDisplayContentType"},
+        {3206, nullptr, "GetDisplayRgbRange"},
+        {3207, nullptr, "SetDisplayRgbRange"},
+        {3208, nullptr, "GetDisplayCmuMode"},
+        {3209, nullptr, "SetDisplayCmuMode"},
+        {3210, nullptr, "GetDisplayContrastRatio"},
+        {3211, nullptr, "SetDisplayContrastRatio"},
+        {3214, nullptr, "GetDisplayGamma"},
+        {3215, nullptr, "SetDisplayGamma"},
+        {3216, nullptr, "GetDisplayCmuLuma"},
+        {3217, nullptr, "SetDisplayCmuLuma"},
+        {3218, nullptr, "SetDisplayCrcMode"},
+        {6013, nullptr, "GetLayerPresentationSubmissionTimestamps"},
+        {8225, &ISystemDisplayService::GetSharedBufferMemoryHandleId, "GetSharedBufferMemoryHandleId"},
+        {8250, &ISystemDisplayService::OpenSharedLayer, "OpenSharedLayer"},
+        {8251, nullptr, "CloseSharedLayer"},
+        {8252, &ISystemDisplayService::ConnectSharedLayer, "ConnectSharedLayer"},
+        {8253, nullptr, "DisconnectSharedLayer"},
+        {8254, &ISystemDisplayService::AcquireSharedFrameBuffer, "AcquireSharedFrameBuffer"},
+        {8255, &ISystemDisplayService::PresentSharedFrameBuffer, "PresentSharedFrameBuffer"},
+        {8256, &ISystemDisplayService::GetSharedFrameBufferAcquirableEvent, "GetSharedFrameBufferAcquirableEvent"},
+        {8257, nullptr, "FillSharedFrameBufferColor"},
+        {8258, nullptr, "CancelSharedFrameBuffer"},
+        {9000, nullptr, "GetDp2hdmiController"},
+    };
+    // clang-format on
+    RegisterHandlers(functions);
+}
+
+ISystemDisplayService::~ISystemDisplayService() = default;
+
+void ISystemDisplayService::GetSharedBufferMemoryHandleId(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const u64 buffer_id = rp.PopRaw<u64>();
+    const u64 aruid = ctx.GetPID();
+
+    LOG_INFO(Service_VI, "called. buffer_id={:#x}, aruid={:#x}", buffer_id, aruid);
+
+    struct OutputParameters {
+        s32 nvmap_handle;
+        u64 size;
+    };
+
+    OutputParameters out{};
+    Nvnflinger::SharedMemoryPoolLayout layout{};
+    const auto result = nvnflinger.GetSystemBufferManager().GetSharedBufferMemoryHandleId(
+        &out.size, &out.nvmap_handle, &layout, buffer_id, aruid);
+
+    ctx.WriteBuffer(&layout, sizeof(layout));
+
+    IPC::ResponseBuilder rb{ctx, 6};
+    rb.Push(result);
+    rb.PushRaw(out);
+}
+
+void ISystemDisplayService::OpenSharedLayer(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const u64 layer_id = rp.PopRaw<u64>();
+
+    LOG_INFO(Service_VI, "(STUBBED) called. layer_id={:#x}", layer_id);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+void ISystemDisplayService::ConnectSharedLayer(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const u64 layer_id = rp.PopRaw<u64>();
+
+    LOG_INFO(Service_VI, "(STUBBED) called. layer_id={:#x}", layer_id);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+void ISystemDisplayService::GetSharedFrameBufferAcquirableEvent(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_VI, "called");
+
+    IPC::RequestParser rp{ctx};
+    const u64 layer_id = rp.PopRaw<u64>();
+
+    Kernel::KReadableEvent* event{};
+    const auto result =
+        nvnflinger.GetSystemBufferManager().GetSharedFrameBufferAcquirableEvent(&event, layer_id);
+
+    IPC::ResponseBuilder rb{ctx, 2, 1};
+    rb.Push(result);
+    rb.PushCopyObjects(event);
+}
+
+void ISystemDisplayService::AcquireSharedFrameBuffer(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_VI, "called");
+
+    IPC::RequestParser rp{ctx};
+    const u64 layer_id = rp.PopRaw<u64>();
+
+    struct OutputParameters {
+        android::Fence fence;
+        std::array<s32, 4> slots;
+        s64 target_slot;
+    };
+    static_assert(sizeof(OutputParameters) == 0x40, "OutputParameters has wrong size");
+
+    OutputParameters out{};
+    const auto result = nvnflinger.GetSystemBufferManager().AcquireSharedFrameBuffer(
+        &out.fence, out.slots, &out.target_slot, layer_id);
+
+    IPC::ResponseBuilder rb{ctx, 18};
+    rb.Push(result);
+    rb.PushRaw(out);
+}
+
+void ISystemDisplayService::PresentSharedFrameBuffer(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_VI, "called");
+
+    struct InputParameters {
+        android::Fence fence;
+        Common::Rectangle<s32> crop_region;
+        u32 window_transform;
+        s32 swap_interval;
+        u64 layer_id;
+        s64 surface_id;
+    };
+    static_assert(sizeof(InputParameters) == 0x50, "InputParameters has wrong size");
+
+    IPC::RequestParser rp{ctx};
+    auto input = rp.PopRaw<InputParameters>();
+
+    const auto result = nvnflinger.GetSystemBufferManager().PresentSharedFrameBuffer(
+        input.fence, input.crop_region, input.window_transform, input.swap_interval, input.layer_id,
+        input.surface_id);
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(result);
+}
+
+void ISystemDisplayService::SetLayerZ(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const u64 layer_id = rp.Pop<u64>();
+    const u64 z_value = rp.Pop<u64>();
+
+    LOG_WARNING(Service_VI, "(STUBBED) called. layer_id=0x{:016X}, z_value=0x{:016X}", layer_id,
+                z_value);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+// This function currently does nothing but return a success error code in
+// the vi library itself, so do the same thing, but log out the passed in values.
+void ISystemDisplayService::SetLayerVisibility(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const u64 layer_id = rp.Pop<u64>();
+    const bool visibility = rp.Pop<bool>();
+
+    LOG_DEBUG(Service_VI, "called, layer_id=0x{:08X}, visibility={}", layer_id, visibility);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+void ISystemDisplayService::GetDisplayMode(HLERequestContext& ctx) {
+    LOG_WARNING(Service_VI, "(STUBBED) called");
+
+    IPC::ResponseBuilder rb{ctx, 6};
+    rb.Push(ResultSuccess);
+
+    if (Settings::IsDockedMode()) {
+        rb.Push(static_cast<u32>(DisplayResolution::DockedWidth));
+        rb.Push(static_cast<u32>(DisplayResolution::DockedHeight));
+    } else {
+        rb.Push(static_cast<u32>(DisplayResolution::UndockedWidth));
+        rb.Push(static_cast<u32>(DisplayResolution::UndockedHeight));
+    }
+
+    rb.PushRaw<float>(60.0f); // This wouldn't seem to be correct for 30 fps games.
+    rb.Push<u32>(0);
+}
+
+} // namespace Service::VI
diff --git a/src/core/hle/service/vi/system_display_service.h b/src/core/hle/service/vi/system_display_service.h
new file mode 100644
index 000000000..57ffbbf76
--- /dev/null
+++ b/src/core/hle/service/vi/system_display_service.h
@@ -0,0 +1,28 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/service.h"
+
+namespace Service::VI {
+
+class ISystemDisplayService final : public ServiceFramework<ISystemDisplayService> {
+public:
+    explicit ISystemDisplayService(Core::System& system_, Nvnflinger::Nvnflinger& nvnflinger_);
+    ~ISystemDisplayService() override;
+
+private:
+    void GetSharedBufferMemoryHandleId(HLERequestContext& ctx);
+    void OpenSharedLayer(HLERequestContext& ctx);
+    void ConnectSharedLayer(HLERequestContext& ctx);
+    void GetSharedFrameBufferAcquirableEvent(HLERequestContext& ctx);
+    void AcquireSharedFrameBuffer(HLERequestContext& ctx);
+    void PresentSharedFrameBuffer(HLERequestContext& ctx);
+    void SetLayerZ(HLERequestContext& ctx);
+    void SetLayerVisibility(HLERequestContext& ctx);
+    void GetDisplayMode(HLERequestContext& ctx);
+
+private:
+    Nvnflinger::Nvnflinger& nvnflinger;
+};
+
+} // namespace Service::VI
diff --git a/src/core/hle/service/vi/vi_s.cpp b/src/core/hle/service/vi/system_root_service.cpp
index 2400694b0..c3228d73b 100644
--- a/src/core/hle/service/vi/vi_s.cpp
+++ b/src/core/hle/service/vi/system_root_service.cpp
@@ -1,27 +1,26 @@
 // SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-#include "common/logging/log.h"
+#include "core/hle/service/vi/system_root_service.h"
 #include "core/hle/service/vi/vi.h"
-#include "core/hle/service/vi/vi_s.h"
 #include "core/hle/service/vi/vi_types.h"
 
 namespace Service::VI {
 
-VI_S::VI_S(Core::System& system_, Nvnflinger::Nvnflinger& nv_flinger_,
-           Nvnflinger::HosBinderDriverServer& hos_binder_driver_server_)
+ISystemRootService::ISystemRootService(Core::System& system_, Nvnflinger::Nvnflinger& nv_flinger_,
+                                       Nvnflinger::HosBinderDriverServer& hos_binder_driver_server_)
     : ServiceFramework{system_, "vi:s"}, nv_flinger{nv_flinger_},
       hos_binder_driver_server{hos_binder_driver_server_} {
     static const FunctionInfo functions[] = {
-        {1, &VI_S::GetDisplayService, "GetDisplayService"},
+        {1, &ISystemRootService::GetDisplayService, "GetDisplayService"},
         {3, nullptr, "GetDisplayServiceWithProxyNameExchange"},
     };
     RegisterHandlers(functions);
 }
 
-VI_S::~VI_S() = default;
+ISystemRootService::~ISystemRootService() = default;
 
-void VI_S::GetDisplayService(HLERequestContext& ctx) {
+void ISystemRootService::GetDisplayService(HLERequestContext& ctx) {
     LOG_DEBUG(Service_VI, "called");
 
     detail::GetDisplayServiceImpl(ctx, system, nv_flinger, hos_binder_driver_server,
diff --git a/src/core/hle/service/vi/vi_m.h b/src/core/hle/service/vi/system_root_service.h
index 9ca6f3905..5a8ecfd1a 100644
--- a/src/core/hle/service/vi/vi_m.h
+++ b/src/core/hle/service/vi/system_root_service.h
@@ -16,11 +16,11 @@ class Nvnflinger;
 
 namespace Service::VI {
 
-class VI_M final : public ServiceFramework<VI_M> {
+class ISystemRootService final : public ServiceFramework<ISystemRootService> {
 public:
-    explicit VI_M(Core::System& system_, Nvnflinger::Nvnflinger& nv_flinger_,
-                  Nvnflinger::HosBinderDriverServer& hos_binder_driver_server_);
-    ~VI_M() override;
+    explicit ISystemRootService(Core::System& system_, Nvnflinger::Nvnflinger& nv_flinger_,
+                                Nvnflinger::HosBinderDriverServer& hos_binder_driver_server_);
+    ~ISystemRootService() override;
 
 private:
     void GetDisplayService(HLERequestContext& ctx);
diff --git a/src/core/hle/service/vi/vi.cpp b/src/core/hle/service/vi/vi.cpp
index fc0880c17..bb84d27b3 100644
--- a/src/core/hle/service/vi/vi.cpp
+++ b/src/core/hle/service/vi/vi.cpp
@@ -1,891 +1,18 @@
 // SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-#include <array>
-#include <memory>
-#include <optional>
-#include <type_traits>
-#include <utility>
-
-#include "common/assert.h"
-#include "common/logging/log.h"
-#include "common/math_util.h"
-#include "common/settings.h"
-#include "common/string_util.h"
-#include "core/hle/kernel/k_readable_event.h"
-#include "core/hle/kernel/k_thread.h"
 #include "core/hle/service/ipc_helpers.h"
-#include "core/hle/service/nvdrv/nvdrv.h"
-#include "core/hle/service/nvnflinger/binder.h"
-#include "core/hle/service/nvnflinger/buffer_queue_producer.h"
-#include "core/hle/service/nvnflinger/fb_share_buffer_manager.h"
-#include "core/hle/service/nvnflinger/hos_binder_driver_server.h"
-#include "core/hle/service/nvnflinger/nvnflinger.h"
-#include "core/hle/service/nvnflinger/parcel.h"
 #include "core/hle/service/server_manager.h"
-#include "core/hle/service/service.h"
+#include "core/hle/service/vi/application_display_service.h"
+#include "core/hle/service/vi/application_root_service.h"
+#include "core/hle/service/vi/manager_root_service.h"
+#include "core/hle/service/vi/system_root_service.h"
 #include "core/hle/service/vi/vi.h"
-#include "core/hle/service/vi/vi_m.h"
 #include "core/hle/service/vi/vi_results.h"
-#include "core/hle/service/vi/vi_s.h"
 #include "core/hle/service/vi/vi_types.h"
-#include "core/hle/service/vi/vi_u.h"
 
 namespace Service::VI {
 
-class IHOSBinderDriver final : public ServiceFramework<IHOSBinderDriver> {
-public:
-    explicit IHOSBinderDriver(Core::System& system_, Nvnflinger::HosBinderDriverServer& server_)
-        : ServiceFramework{system_, "IHOSBinderDriver"}, server(server_) {
-        static const FunctionInfo functions[] = {
-            {0, &IHOSBinderDriver::TransactParcel, "TransactParcel"},
-            {1, &IHOSBinderDriver::AdjustRefcount, "AdjustRefcount"},
-            {2, &IHOSBinderDriver::GetNativeHandle, "GetNativeHandle"},
-            {3, &IHOSBinderDriver::TransactParcel, "TransactParcelAuto"},
-        };
-        RegisterHandlers(functions);
-    }
-
-private:
-    void TransactParcel(HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const u32 id = rp.Pop<u32>();
-        const auto transaction = static_cast<android::TransactionId>(rp.Pop<u32>());
-        const u32 flags = rp.Pop<u32>();
-
-        LOG_DEBUG(Service_VI, "called. id=0x{:08X} transaction={:X}, flags=0x{:08X}", id,
-                  transaction, flags);
-
-        server.TryGetProducer(id)->Transact(ctx, transaction, flags);
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-    }
-
-    void AdjustRefcount(HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const u32 id = rp.Pop<u32>();
-        const s32 addval = rp.PopRaw<s32>();
-        const u32 type = rp.Pop<u32>();
-
-        LOG_WARNING(Service_VI, "(STUBBED) called id={}, addval={:08X}, type={:08X}", id, addval,
-                    type);
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-    }
-
-    void GetNativeHandle(HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const u32 id = rp.Pop<u32>();
-        const u32 unknown = rp.Pop<u32>();
-
-        LOG_WARNING(Service_VI, "(STUBBED) called id={}, unknown={:08X}", id, unknown);
-
-        IPC::ResponseBuilder rb{ctx, 2, 1};
-        rb.Push(ResultSuccess);
-        rb.PushCopyObjects(server.TryGetProducer(id)->GetNativeHandle());
-    }
-
-private:
-    Nvnflinger::HosBinderDriverServer& server;
-};
-
-class ISystemDisplayService final : public ServiceFramework<ISystemDisplayService> {
-public:
-    explicit ISystemDisplayService(Core::System& system_, Nvnflinger::Nvnflinger& nvnflinger_)
-        : ServiceFramework{system_, "ISystemDisplayService"}, nvnflinger{nvnflinger_} {
-        // clang-format off
-        static const FunctionInfo functions[] = {
-            {1200, nullptr, "GetZOrderCountMin"},
-            {1202, nullptr, "GetZOrderCountMax"},
-            {1203, nullptr, "GetDisplayLogicalResolution"},
-            {1204, nullptr, "SetDisplayMagnification"},
-            {2201, nullptr, "SetLayerPosition"},
-            {2203, nullptr, "SetLayerSize"},
-            {2204, nullptr, "GetLayerZ"},
-            {2205, &ISystemDisplayService::SetLayerZ, "SetLayerZ"},
-            {2207, &ISystemDisplayService::SetLayerVisibility, "SetLayerVisibility"},
-            {2209, nullptr, "SetLayerAlpha"},
-            {2210, nullptr, "SetLayerPositionAndSize"},
-            {2312, nullptr, "CreateStrayLayer"},
-            {2400, nullptr, "OpenIndirectLayer"},
-            {2401, nullptr, "CloseIndirectLayer"},
-            {2402, nullptr, "FlipIndirectLayer"},
-            {3000, nullptr, "ListDisplayModes"},
-            {3001, nullptr, "ListDisplayRgbRanges"},
-            {3002, nullptr, "ListDisplayContentTypes"},
-            {3200, &ISystemDisplayService::GetDisplayMode, "GetDisplayMode"},
-            {3201, nullptr, "SetDisplayMode"},
-            {3202, nullptr, "GetDisplayUnderscan"},
-            {3203, nullptr, "SetDisplayUnderscan"},
-            {3204, nullptr, "GetDisplayContentType"},
-            {3205, nullptr, "SetDisplayContentType"},
-            {3206, nullptr, "GetDisplayRgbRange"},
-            {3207, nullptr, "SetDisplayRgbRange"},
-            {3208, nullptr, "GetDisplayCmuMode"},
-            {3209, nullptr, "SetDisplayCmuMode"},
-            {3210, nullptr, "GetDisplayContrastRatio"},
-            {3211, nullptr, "SetDisplayContrastRatio"},
-            {3214, nullptr, "GetDisplayGamma"},
-            {3215, nullptr, "SetDisplayGamma"},
-            {3216, nullptr, "GetDisplayCmuLuma"},
-            {3217, nullptr, "SetDisplayCmuLuma"},
-            {3218, nullptr, "SetDisplayCrcMode"},
-            {6013, nullptr, "GetLayerPresentationSubmissionTimestamps"},
-            {8225, &ISystemDisplayService::GetSharedBufferMemoryHandleId, "GetSharedBufferMemoryHandleId"},
-            {8250, &ISystemDisplayService::OpenSharedLayer, "OpenSharedLayer"},
-            {8251, nullptr, "CloseSharedLayer"},
-            {8252, &ISystemDisplayService::ConnectSharedLayer, "ConnectSharedLayer"},
-            {8253, nullptr, "DisconnectSharedLayer"},
-            {8254, &ISystemDisplayService::AcquireSharedFrameBuffer, "AcquireSharedFrameBuffer"},
-            {8255, &ISystemDisplayService::PresentSharedFrameBuffer, "PresentSharedFrameBuffer"},
-            {8256, &ISystemDisplayService::GetSharedFrameBufferAcquirableEvent, "GetSharedFrameBufferAcquirableEvent"},
-            {8257, nullptr, "FillSharedFrameBufferColor"},
-            {8258, nullptr, "CancelSharedFrameBuffer"},
-            {9000, nullptr, "GetDp2hdmiController"},
-        };
-        // clang-format on
-        RegisterHandlers(functions);
-    }
-
-private:
-    void GetSharedBufferMemoryHandleId(HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const u64 buffer_id = rp.PopRaw<u64>();
-        const u64 aruid = ctx.GetPID();
-
-        LOG_INFO(Service_VI, "called. buffer_id={:#x}, aruid={:#x}", buffer_id, aruid);
-
-        struct OutputParameters {
-            s32 nvmap_handle;
-            u64 size;
-        };
-
-        OutputParameters out{};
-        Nvnflinger::SharedMemoryPoolLayout layout{};
-        const auto result = nvnflinger.GetSystemBufferManager().GetSharedBufferMemoryHandleId(
-            &out.size, &out.nvmap_handle, &layout, buffer_id, aruid);
-
-        ctx.WriteBuffer(&layout, sizeof(layout));
-
-        IPC::ResponseBuilder rb{ctx, 6};
-        rb.Push(result);
-        rb.PushRaw(out);
-    }
-
-    void OpenSharedLayer(HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const u64 layer_id = rp.PopRaw<u64>();
-
-        LOG_INFO(Service_VI, "(STUBBED) called. layer_id={:#x}", layer_id);
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-    }
-
-    void ConnectSharedLayer(HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const u64 layer_id = rp.PopRaw<u64>();
-
-        LOG_INFO(Service_VI, "(STUBBED) called. layer_id={:#x}", layer_id);
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-    }
-
-    void GetSharedFrameBufferAcquirableEvent(HLERequestContext& ctx) {
-        LOG_DEBUG(Service_VI, "called");
-
-        IPC::RequestParser rp{ctx};
-        const u64 layer_id = rp.PopRaw<u64>();
-
-        Kernel::KReadableEvent* event{};
-        const auto result = nvnflinger.GetSystemBufferManager().GetSharedFrameBufferAcquirableEvent(
-            &event, layer_id);
-
-        IPC::ResponseBuilder rb{ctx, 2, 1};
-        rb.Push(result);
-        rb.PushCopyObjects(event);
-    }
-
-    void AcquireSharedFrameBuffer(HLERequestContext& ctx) {
-        LOG_DEBUG(Service_VI, "called");
-
-        IPC::RequestParser rp{ctx};
-        const u64 layer_id = rp.PopRaw<u64>();
-
-        struct OutputParameters {
-            android::Fence fence;
-            std::array<s32, 4> slots;
-            s64 target_slot;
-        };
-        static_assert(sizeof(OutputParameters) == 0x40, "OutputParameters has wrong size");
-
-        OutputParameters out{};
-        const auto result = nvnflinger.GetSystemBufferManager().AcquireSharedFrameBuffer(
-            &out.fence, out.slots, &out.target_slot, layer_id);
-
-        IPC::ResponseBuilder rb{ctx, 18};
-        rb.Push(result);
-        rb.PushRaw(out);
-    }
-
-    void PresentSharedFrameBuffer(HLERequestContext& ctx) {
-        LOG_DEBUG(Service_VI, "called");
-
-        struct InputParameters {
-            android::Fence fence;
-            Common::Rectangle<s32> crop_region;
-            u32 window_transform;
-            s32 swap_interval;
-            u64 layer_id;
-            s64 surface_id;
-        };
-        static_assert(sizeof(InputParameters) == 0x50, "InputParameters has wrong size");
-
-        IPC::RequestParser rp{ctx};
-        auto input = rp.PopRaw<InputParameters>();
-
-        const auto result = nvnflinger.GetSystemBufferManager().PresentSharedFrameBuffer(
-            input.fence, input.crop_region, input.window_transform, input.swap_interval,
-            input.layer_id, input.surface_id);
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(result);
-    }
-
-    void SetLayerZ(HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const u64 layer_id = rp.Pop<u64>();
-        const u64 z_value = rp.Pop<u64>();
-
-        LOG_WARNING(Service_VI, "(STUBBED) called. layer_id=0x{:016X}, z_value=0x{:016X}", layer_id,
-                    z_value);
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-    }
-
-    // This function currently does nothing but return a success error code in
-    // the vi library itself, so do the same thing, but log out the passed in values.
-    void SetLayerVisibility(HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const u64 layer_id = rp.Pop<u64>();
-        const bool visibility = rp.Pop<bool>();
-
-        LOG_DEBUG(Service_VI, "called, layer_id=0x{:08X}, visibility={}", layer_id, visibility);
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-    }
-
-    void GetDisplayMode(HLERequestContext& ctx) {
-        LOG_WARNING(Service_VI, "(STUBBED) called");
-
-        IPC::ResponseBuilder rb{ctx, 6};
-        rb.Push(ResultSuccess);
-
-        if (Settings::IsDockedMode()) {
-            rb.Push(static_cast<u32>(Service::VI::DisplayResolution::DockedWidth));
-            rb.Push(static_cast<u32>(Service::VI::DisplayResolution::DockedHeight));
-        } else {
-            rb.Push(static_cast<u32>(Service::VI::DisplayResolution::UndockedWidth));
-            rb.Push(static_cast<u32>(Service::VI::DisplayResolution::UndockedHeight));
-        }
-
-        rb.PushRaw<float>(60.0f); // This wouldn't seem to be correct for 30 fps games.
-        rb.Push<u32>(0);
-    }
-
-private:
-    Nvnflinger::Nvnflinger& nvnflinger;
-};
-
-class IManagerDisplayService final : public ServiceFramework<IManagerDisplayService> {
-public:
-    explicit IManagerDisplayService(Core::System& system_, Nvnflinger::Nvnflinger& nvnflinger_)
-        : ServiceFramework{system_, "IManagerDisplayService"}, nvnflinger{nvnflinger_} {
-        // clang-format off
-        static const FunctionInfo functions[] = {
-            {200, nullptr, "AllocateProcessHeapBlock"},
-            {201, nullptr, "FreeProcessHeapBlock"},
-            {1020, &IManagerDisplayService::CloseDisplay, "CloseDisplay"},
-            {1102, nullptr, "GetDisplayResolution"},
-            {2010, &IManagerDisplayService::CreateManagedLayer, "CreateManagedLayer"},
-            {2011, nullptr, "DestroyManagedLayer"},
-            {2012, nullptr, "CreateStrayLayer"},
-            {2050, nullptr, "CreateIndirectLayer"},
-            {2051, nullptr, "DestroyIndirectLayer"},
-            {2052, nullptr, "CreateIndirectProducerEndPoint"},
-            {2053, nullptr, "DestroyIndirectProducerEndPoint"},
-            {2054, nullptr, "CreateIndirectConsumerEndPoint"},
-            {2055, nullptr, "DestroyIndirectConsumerEndPoint"},
-            {2060, nullptr, "CreateWatermarkCompositor"},
-            {2062, nullptr, "SetWatermarkText"},
-            {2063, nullptr, "SetWatermarkLayerStacks"},
-            {2300, nullptr, "AcquireLayerTexturePresentingEvent"},
-            {2301, nullptr, "ReleaseLayerTexturePresentingEvent"},
-            {2302, nullptr, "GetDisplayHotplugEvent"},
-            {2303, nullptr, "GetDisplayModeChangedEvent"},
-            {2402, nullptr, "GetDisplayHotplugState"},
-            {2501, nullptr, "GetCompositorErrorInfo"},
-            {2601, nullptr, "GetDisplayErrorEvent"},
-            {2701, nullptr, "GetDisplayFatalErrorEvent"},
-            {4201, nullptr, "SetDisplayAlpha"},
-            {4203, nullptr, "SetDisplayLayerStack"},
-            {4205, nullptr, "SetDisplayPowerState"},
-            {4206, nullptr, "SetDefaultDisplay"},
-            {4207, nullptr, "ResetDisplayPanel"},
-            {4208, nullptr, "SetDisplayFatalErrorEnabled"},
-            {4209, nullptr, "IsDisplayPanelOn"},
-            {4300, nullptr, "GetInternalPanelId"},
-            {6000, &IManagerDisplayService::AddToLayerStack, "AddToLayerStack"},
-            {6001, nullptr, "RemoveFromLayerStack"},
-            {6002, &IManagerDisplayService::SetLayerVisibility, "SetLayerVisibility"},
-            {6003, nullptr, "SetLayerConfig"},
-            {6004, nullptr, "AttachLayerPresentationTracer"},
-            {6005, nullptr, "DetachLayerPresentationTracer"},
-            {6006, nullptr, "StartLayerPresentationRecording"},
-            {6007, nullptr, "StopLayerPresentationRecording"},
-            {6008, nullptr, "StartLayerPresentationFenceWait"},
-            {6009, nullptr, "StopLayerPresentationFenceWait"},
-            {6010, nullptr, "GetLayerPresentationAllFencesExpiredEvent"},
-            {6011, nullptr, "EnableLayerAutoClearTransitionBuffer"},
-            {6012, nullptr, "DisableLayerAutoClearTransitionBuffer"},
-            {6013, nullptr, "SetLayerOpacity"},
-            {6014, nullptr, "AttachLayerWatermarkCompositor"},
-            {6015, nullptr, "DetachLayerWatermarkCompositor"},
-            {7000, nullptr, "SetContentVisibility"},
-            {8000, nullptr, "SetConductorLayer"},
-            {8001, nullptr, "SetTimestampTracking"},
-            {8100, nullptr, "SetIndirectProducerFlipOffset"},
-            {8200, nullptr, "CreateSharedBufferStaticStorage"},
-            {8201, nullptr, "CreateSharedBufferTransferMemory"},
-            {8202, nullptr, "DestroySharedBuffer"},
-            {8203, nullptr, "BindSharedLowLevelLayerToManagedLayer"},
-            {8204, nullptr, "BindSharedLowLevelLayerToIndirectLayer"},
-            {8207, nullptr, "UnbindSharedLowLevelLayer"},
-            {8208, nullptr, "ConnectSharedLowLevelLayerToSharedBuffer"},
-            {8209, nullptr, "DisconnectSharedLowLevelLayerFromSharedBuffer"},
-            {8210, nullptr, "CreateSharedLayer"},
-            {8211, nullptr, "DestroySharedLayer"},
-            {8216, nullptr, "AttachSharedLayerToLowLevelLayer"},
-            {8217, nullptr, "ForceDetachSharedLayerFromLowLevelLayer"},
-            {8218, nullptr, "StartDetachSharedLayerFromLowLevelLayer"},
-            {8219, nullptr, "FinishDetachSharedLayerFromLowLevelLayer"},
-            {8220, nullptr, "GetSharedLayerDetachReadyEvent"},
-            {8221, nullptr, "GetSharedLowLevelLayerSynchronizedEvent"},
-            {8222, nullptr, "CheckSharedLowLevelLayerSynchronized"},
-            {8223, nullptr, "RegisterSharedBufferImporterAruid"},
-            {8224, nullptr, "UnregisterSharedBufferImporterAruid"},
-            {8227, nullptr, "CreateSharedBufferProcessHeap"},
-            {8228, nullptr, "GetSharedLayerLayerStacks"},
-            {8229, nullptr, "SetSharedLayerLayerStacks"},
-            {8291, nullptr, "PresentDetachedSharedFrameBufferToLowLevelLayer"},
-            {8292, nullptr, "FillDetachedSharedFrameBufferColor"},
-            {8293, nullptr, "GetDetachedSharedFrameBufferImage"},
-            {8294, nullptr, "SetDetachedSharedFrameBufferImage"},
-            {8295, nullptr, "CopyDetachedSharedFrameBufferImage"},
-            {8296, nullptr, "SetDetachedSharedFrameBufferSubImage"},
-            {8297, nullptr, "GetSharedFrameBufferContentParameter"},
-            {8298, nullptr, "ExpandStartupLogoOnSharedFrameBuffer"},
-        };
-        // clang-format on
-
-        RegisterHandlers(functions);
-    }
-
-private:
-    void CloseDisplay(HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const u64 display = rp.Pop<u64>();
-
-        const Result rc = nvnflinger.CloseDisplay(display) ? ResultSuccess : ResultUnknown;
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(rc);
-    }
-
-    void CreateManagedLayer(HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const u32 unknown = rp.Pop<u32>();
-        rp.Skip(1, false);
-        const u64 display = rp.Pop<u64>();
-        const u64 aruid = rp.Pop<u64>();
-
-        LOG_WARNING(Service_VI,
-                    "(STUBBED) called. unknown=0x{:08X}, display=0x{:016X}, aruid=0x{:016X}",
-                    unknown, display, aruid);
-
-        const auto layer_id = nvnflinger.CreateLayer(display);
-        if (!layer_id) {
-            LOG_ERROR(Service_VI, "Layer not found! display=0x{:016X}", display);
-            IPC::ResponseBuilder rb{ctx, 2};
-            rb.Push(ResultNotFound);
-            return;
-        }
-
-        IPC::ResponseBuilder rb{ctx, 4};
-        rb.Push(ResultSuccess);
-        rb.Push(*layer_id);
-    }
-
-    void AddToLayerStack(HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const u32 stack = rp.Pop<u32>();
-        const u64 layer_id = rp.Pop<u64>();
-
-        LOG_WARNING(Service_VI, "(STUBBED) called. stack=0x{:08X}, layer_id=0x{:016X}", stack,
-                    layer_id);
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-    }
-
-    void SetLayerVisibility(HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const u64 layer_id = rp.Pop<u64>();
-        const bool visibility = rp.Pop<bool>();
-
-        LOG_WARNING(Service_VI, "(STUBBED) called, layer_id=0x{:X}, visibility={}", layer_id,
-                    visibility);
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-    }
-
-    Nvnflinger::Nvnflinger& nvnflinger;
-};
-
-class IApplicationDisplayService final : public ServiceFramework<IApplicationDisplayService> {
-public:
-    IApplicationDisplayService(Core::System& system_, Nvnflinger::Nvnflinger& nvnflinger_,
-                               Nvnflinger::HosBinderDriverServer& hos_binder_driver_server_)
-        : ServiceFramework{system_, "IApplicationDisplayService"}, nvnflinger{nvnflinger_},
-          hos_binder_driver_server{hos_binder_driver_server_} {
-
-        static const FunctionInfo functions[] = {
-            {100, &IApplicationDisplayService::GetRelayService, "GetRelayService"},
-            {101, &IApplicationDisplayService::GetSystemDisplayService, "GetSystemDisplayService"},
-            {102, &IApplicationDisplayService::GetManagerDisplayService,
-             "GetManagerDisplayService"},
-            {103, &IApplicationDisplayService::GetIndirectDisplayTransactionService,
-             "GetIndirectDisplayTransactionService"},
-            {1000, &IApplicationDisplayService::ListDisplays, "ListDisplays"},
-            {1010, &IApplicationDisplayService::OpenDisplay, "OpenDisplay"},
-            {1011, &IApplicationDisplayService::OpenDefaultDisplay, "OpenDefaultDisplay"},
-            {1020, &IApplicationDisplayService::CloseDisplay, "CloseDisplay"},
-            {1101, &IApplicationDisplayService::SetDisplayEnabled, "SetDisplayEnabled"},
-            {1102, &IApplicationDisplayService::GetDisplayResolution, "GetDisplayResolution"},
-            {2020, &IApplicationDisplayService::OpenLayer, "OpenLayer"},
-            {2021, &IApplicationDisplayService::CloseLayer, "CloseLayer"},
-            {2030, &IApplicationDisplayService::CreateStrayLayer, "CreateStrayLayer"},
-            {2031, &IApplicationDisplayService::DestroyStrayLayer, "DestroyStrayLayer"},
-            {2101, &IApplicationDisplayService::SetLayerScalingMode, "SetLayerScalingMode"},
-            {2102, &IApplicationDisplayService::ConvertScalingMode, "ConvertScalingMode"},
-            {2450, &IApplicationDisplayService::GetIndirectLayerImageMap,
-             "GetIndirectLayerImageMap"},
-            {2451, nullptr, "GetIndirectLayerImageCropMap"},
-            {2460, &IApplicationDisplayService::GetIndirectLayerImageRequiredMemoryInfo,
-             "GetIndirectLayerImageRequiredMemoryInfo"},
-            {5202, &IApplicationDisplayService::GetDisplayVsyncEvent, "GetDisplayVsyncEvent"},
-            {5203, nullptr, "GetDisplayVsyncEventForDebug"},
-        };
-        RegisterHandlers(functions);
-    }
-
-    ~IApplicationDisplayService() {
-        for (const auto layer_id : stray_layer_ids) {
-            nvnflinger.DestroyLayer(layer_id);
-        }
-    }
-
-private:
-    enum class ConvertedScaleMode : u64 {
-        Freeze = 0,
-        ScaleToWindow = 1,
-        ScaleAndCrop = 2,
-        None = 3,
-        PreserveAspectRatio = 4,
-    };
-
-    enum class NintendoScaleMode : u32 {
-        None = 0,
-        Freeze = 1,
-        ScaleToWindow = 2,
-        ScaleAndCrop = 3,
-        PreserveAspectRatio = 4,
-    };
-
-    void GetRelayService(HLERequestContext& ctx) {
-        LOG_WARNING(Service_VI, "(STUBBED) called");
-
-        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
-        rb.Push(ResultSuccess);
-        rb.PushIpcInterface<IHOSBinderDriver>(system, hos_binder_driver_server);
-    }
-
-    void GetSystemDisplayService(HLERequestContext& ctx) {
-        LOG_WARNING(Service_VI, "(STUBBED) called");
-
-        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
-        rb.Push(ResultSuccess);
-        rb.PushIpcInterface<ISystemDisplayService>(system, nvnflinger);
-    }
-
-    void GetManagerDisplayService(HLERequestContext& ctx) {
-        LOG_WARNING(Service_VI, "(STUBBED) called");
-
-        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
-        rb.Push(ResultSuccess);
-        rb.PushIpcInterface<IManagerDisplayService>(system, nvnflinger);
-    }
-
-    void GetIndirectDisplayTransactionService(HLERequestContext& ctx) {
-        LOG_WARNING(Service_VI, "(STUBBED) called");
-
-        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
-        rb.Push(ResultSuccess);
-        rb.PushIpcInterface<IHOSBinderDriver>(system, hos_binder_driver_server);
-    }
-
-    void OpenDisplay(HLERequestContext& ctx) {
-        LOG_WARNING(Service_VI, "(STUBBED) called");
-
-        IPC::RequestParser rp{ctx};
-        const auto name_buf = rp.PopRaw<std::array<char, 0x40>>();
-
-        OpenDisplayImpl(ctx, std::string_view{name_buf.data(), name_buf.size()});
-    }
-
-    void OpenDefaultDisplay(HLERequestContext& ctx) {
-        LOG_DEBUG(Service_VI, "called");
-
-        OpenDisplayImpl(ctx, "Default");
-    }
-
-    void OpenDisplayImpl(HLERequestContext& ctx, std::string_view name) {
-        const auto trim_pos = name.find('\0');
-
-        if (trim_pos != std::string_view::npos) {
-            name.remove_suffix(name.size() - trim_pos);
-        }
-
-        ASSERT_MSG(name == "Default", "Non-default displays aren't supported yet");
-
-        const auto display_id = nvnflinger.OpenDisplay(name);
-        if (!display_id) {
-            LOG_ERROR(Service_VI, "Display not found! display_name={}", name);
-            IPC::ResponseBuilder rb{ctx, 2};
-            rb.Push(ResultNotFound);
-            return;
-        }
-
-        IPC::ResponseBuilder rb{ctx, 4};
-        rb.Push(ResultSuccess);
-        rb.Push<u64>(*display_id);
-    }
-
-    void CloseDisplay(HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const u64 display_id = rp.Pop<u64>();
-
-        const Result rc = nvnflinger.CloseDisplay(display_id) ? ResultSuccess : ResultUnknown;
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(rc);
-    }
-
-    // This literally does nothing internally in the actual service itself,
-    // and just returns a successful result code regardless of the input.
-    void SetDisplayEnabled(HLERequestContext& ctx) {
-        LOG_DEBUG(Service_VI, "called.");
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-    }
-
-    void GetDisplayResolution(HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const u64 display_id = rp.Pop<u64>();
-
-        LOG_DEBUG(Service_VI, "called. display_id=0x{:016X}", display_id);
-
-        IPC::ResponseBuilder rb{ctx, 6};
-        rb.Push(ResultSuccess);
-
-        // This only returns the fixed values of 1280x720 and makes no distinguishing
-        // between docked and undocked dimensions. We take the liberty of applying
-        // the resolution scaling factor here.
-        rb.Push(static_cast<u64>(DisplayResolution::UndockedWidth));
-        rb.Push(static_cast<u64>(DisplayResolution::UndockedHeight));
-    }
-
-    void SetLayerScalingMode(HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const auto scaling_mode = rp.PopEnum<NintendoScaleMode>();
-        const u64 unknown = rp.Pop<u64>();
-
-        LOG_DEBUG(Service_VI, "called. scaling_mode=0x{:08X}, unknown=0x{:016X}", scaling_mode,
-                  unknown);
-
-        IPC::ResponseBuilder rb{ctx, 2};
-
-        if (scaling_mode > NintendoScaleMode::PreserveAspectRatio) {
-            LOG_ERROR(Service_VI, "Invalid scaling mode provided.");
-            rb.Push(ResultOperationFailed);
-            return;
-        }
-
-        if (scaling_mode != NintendoScaleMode::ScaleToWindow &&
-            scaling_mode != NintendoScaleMode::PreserveAspectRatio) {
-            LOG_ERROR(Service_VI, "Unsupported scaling mode supplied.");
-            rb.Push(ResultNotSupported);
-            return;
-        }
-
-        rb.Push(ResultSuccess);
-    }
-
-    void ListDisplays(HLERequestContext& ctx) {
-        LOG_WARNING(Service_VI, "(STUBBED) called");
-
-        const DisplayInfo display_info;
-        ctx.WriteBuffer(&display_info, sizeof(DisplayInfo));
-        IPC::ResponseBuilder rb{ctx, 4};
-        rb.Push(ResultSuccess);
-        rb.Push<u64>(1);
-    }
-
-    void OpenLayer(HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const auto name_buf = rp.PopRaw<std::array<u8, 0x40>>();
-        const std::string display_name(Common::StringFromBuffer(name_buf));
-
-        const u64 layer_id = rp.Pop<u64>();
-        const u64 aruid = rp.Pop<u64>();
-
-        LOG_DEBUG(Service_VI, "called. layer_id=0x{:016X}, aruid=0x{:016X}", layer_id, aruid);
-
-        const auto display_id = nvnflinger.OpenDisplay(display_name);
-        if (!display_id) {
-            LOG_ERROR(Service_VI, "Layer not found! layer_id={}", layer_id);
-            IPC::ResponseBuilder rb{ctx, 2};
-            rb.Push(ResultNotFound);
-            return;
-        }
-
-        const auto buffer_queue_id = nvnflinger.FindBufferQueueId(*display_id, layer_id);
-        if (!buffer_queue_id) {
-            LOG_ERROR(Service_VI, "Buffer queue id not found! display_id={}", *display_id);
-            IPC::ResponseBuilder rb{ctx, 2};
-            rb.Push(ResultNotFound);
-            return;
-        }
-
-        if (!nvnflinger.OpenLayer(layer_id)) {
-            LOG_WARNING(Service_VI, "Tried to open layer which was already open");
-            IPC::ResponseBuilder rb{ctx, 2};
-            rb.Push(ResultOperationFailed);
-            return;
-        }
-
-        android::OutputParcel parcel;
-        parcel.WriteInterface(NativeWindow{*buffer_queue_id});
-
-        const auto buffer_size = ctx.WriteBuffer(parcel.Serialize());
-
-        IPC::ResponseBuilder rb{ctx, 4};
-        rb.Push(ResultSuccess);
-        rb.Push<u64>(buffer_size);
-    }
-
-    void CloseLayer(HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const auto layer_id{rp.Pop<u64>()};
-
-        LOG_DEBUG(Service_VI, "called. layer_id=0x{:016X}", layer_id);
-
-        if (!nvnflinger.CloseLayer(layer_id)) {
-            LOG_WARNING(Service_VI, "Tried to close layer which was not open");
-            IPC::ResponseBuilder rb{ctx, 2};
-            rb.Push(ResultOperationFailed);
-            return;
-        }
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-    }
-
-    void CreateStrayLayer(HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const u32 flags = rp.Pop<u32>();
-        rp.Pop<u32>(); // padding
-        const u64 display_id = rp.Pop<u64>();
-
-        LOG_DEBUG(Service_VI, "called. flags=0x{:08X}, display_id=0x{:016X}", flags, display_id);
-
-        // TODO(Subv): What's the difference between a Stray and a Managed layer?
-
-        const auto layer_id = nvnflinger.CreateLayer(display_id);
-        if (!layer_id) {
-            LOG_ERROR(Service_VI, "Layer not found! display_id={}", display_id);
-            IPC::ResponseBuilder rb{ctx, 2};
-            rb.Push(ResultNotFound);
-            return;
-        }
-
-        stray_layer_ids.push_back(*layer_id);
-        const auto buffer_queue_id = nvnflinger.FindBufferQueueId(display_id, *layer_id);
-        if (!buffer_queue_id) {
-            LOG_ERROR(Service_VI, "Buffer queue id not found! display_id={}", display_id);
-            IPC::ResponseBuilder rb{ctx, 2};
-            rb.Push(ResultNotFound);
-            return;
-        }
-
-        android::OutputParcel parcel;
-        parcel.WriteInterface(NativeWindow{*buffer_queue_id});
-
-        const auto buffer_size = ctx.WriteBuffer(parcel.Serialize());
-
-        IPC::ResponseBuilder rb{ctx, 6};
-        rb.Push(ResultSuccess);
-        rb.Push(*layer_id);
-        rb.Push<u64>(buffer_size);
-    }
-
-    void DestroyStrayLayer(HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const u64 layer_id = rp.Pop<u64>();
-
-        LOG_WARNING(Service_VI, "(STUBBED) called. layer_id=0x{:016X}", layer_id);
-        nvnflinger.DestroyLayer(layer_id);
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-    }
-
-    void GetDisplayVsyncEvent(HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const u64 display_id = rp.Pop<u64>();
-
-        LOG_DEBUG(Service_VI, "called. display_id={}", display_id);
-
-        Kernel::KReadableEvent* vsync_event{};
-        const auto result = nvnflinger.FindVsyncEvent(&vsync_event, display_id);
-        if (result != ResultSuccess) {
-            if (result == ResultNotFound) {
-                LOG_ERROR(Service_VI, "Vsync event was not found for display_id={}", display_id);
-            }
-
-            IPC::ResponseBuilder rb{ctx, 2};
-            rb.Push(result);
-            return;
-        }
-        if (vsync_event_fetched) {
-            IPC::ResponseBuilder rb{ctx, 2};
-            rb.Push(VI::ResultPermissionDenied);
-            return;
-        }
-        vsync_event_fetched = true;
-
-        IPC::ResponseBuilder rb{ctx, 2, 1};
-        rb.Push(ResultSuccess);
-        rb.PushCopyObjects(vsync_event);
-    }
-
-    void ConvertScalingMode(HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const auto mode = rp.PopEnum<NintendoScaleMode>();
-        LOG_DEBUG(Service_VI, "called mode={}", mode);
-
-        ConvertedScaleMode converted_mode{};
-        const auto result = ConvertScalingModeImpl(&converted_mode, mode);
-
-        if (result == ResultSuccess) {
-            IPC::ResponseBuilder rb{ctx, 4};
-            rb.Push(ResultSuccess);
-            rb.PushEnum(converted_mode);
-        } else {
-            IPC::ResponseBuilder rb{ctx, 2};
-            rb.Push(result);
-        }
-    }
-
-    void GetIndirectLayerImageMap(HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const auto width = rp.Pop<s64>();
-        const auto height = rp.Pop<s64>();
-        const auto indirect_layer_consumer_handle = rp.Pop<u64>();
-        const auto applet_resource_user_id = rp.Pop<u64>();
-
-        LOG_WARNING(Service_VI,
-                    "(STUBBED) called, width={}, height={}, indirect_layer_consumer_handle={}, "
-                    "applet_resource_user_id={}",
-                    width, height, indirect_layer_consumer_handle, applet_resource_user_id);
-
-        std::vector<u8> out_buffer(0x46);
-        ctx.WriteBuffer(out_buffer);
-
-        // TODO: Figure out what these are
-
-        constexpr s64 unknown_result_1 = 0;
-        constexpr s64 unknown_result_2 = 0;
-
-        IPC::ResponseBuilder rb{ctx, 6};
-        rb.Push(unknown_result_1);
-        rb.Push(unknown_result_2);
-        rb.Push(ResultSuccess);
-    }
-
-    void GetIndirectLayerImageRequiredMemoryInfo(HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const auto width = rp.Pop<u64>();
-        const auto height = rp.Pop<u64>();
-        LOG_DEBUG(Service_VI, "called width={}, height={}", width, height);
-
-        constexpr u64 base_size = 0x20000;
-        constexpr u64 alignment = 0x1000;
-        const auto texture_size = width * height * 4;
-        const auto out_size = (texture_size + base_size - 1) / base_size * base_size;
-
-        IPC::ResponseBuilder rb{ctx, 6};
-        rb.Push(ResultSuccess);
-        rb.Push(out_size);
-        rb.Push(alignment);
-    }
-
-    static Result ConvertScalingModeImpl(ConvertedScaleMode* out_scaling_mode,
-                                         NintendoScaleMode mode) {
-        switch (mode) {
-        case NintendoScaleMode::None:
-            *out_scaling_mode = ConvertedScaleMode::None;
-            return ResultSuccess;
-        case NintendoScaleMode::Freeze:
-            *out_scaling_mode = ConvertedScaleMode::Freeze;
-            return ResultSuccess;
-        case NintendoScaleMode::ScaleToWindow:
-            *out_scaling_mode = ConvertedScaleMode::ScaleToWindow;
-            return ResultSuccess;
-        case NintendoScaleMode::ScaleAndCrop:
-            *out_scaling_mode = ConvertedScaleMode::ScaleAndCrop;
-            return ResultSuccess;
-        case NintendoScaleMode::PreserveAspectRatio:
-            *out_scaling_mode = ConvertedScaleMode::PreserveAspectRatio;
-            return ResultSuccess;
-        default:
-            LOG_ERROR(Service_VI, "Invalid scaling mode specified, mode={}", mode);
-            return ResultOperationFailed;
-        }
-    }
-
-    Nvnflinger::Nvnflinger& nvnflinger;
-    Nvnflinger::HosBinderDriverServer& hos_binder_driver_server;
-    std::vector<u64> stray_layer_ids;
-    bool vsync_event_fetched{false};
-};
-
 static bool IsValidServiceAccess(Permission permission, Policy policy) {
     if (permission == Permission::User) {
         return policy == Policy::User;
@@ -921,12 +48,12 @@ void LoopProcess(Core::System& system, Nvnflinger::Nvnflinger& nvnflinger,
                  Nvnflinger::HosBinderDriverServer& hos_binder_driver_server) {
     auto server_manager = std::make_unique<ServerManager>(system);
 
+    server_manager->RegisterNamedService("vi:m", std::make_shared<IManagerRootService>(
+                                                     system, nvnflinger, hos_binder_driver_server));
     server_manager->RegisterNamedService(
-        "vi:m", std::make_shared<VI_M>(system, nvnflinger, hos_binder_driver_server));
-    server_manager->RegisterNamedService(
-        "vi:s", std::make_shared<VI_S>(system, nvnflinger, hos_binder_driver_server));
-    server_manager->RegisterNamedService(
-        "vi:u", std::make_shared<VI_U>(system, nvnflinger, hos_binder_driver_server));
+        "vi:s", std::make_shared<ISystemRootService>(system, nvnflinger, hos_binder_driver_server));
+    server_manager->RegisterNamedService("vi:u", std::make_shared<IApplicationRootService>(
+                                                     system, nvnflinger, hos_binder_driver_server));
     ServerManager::RunServer(std::move(server_manager));
 }
 
diff --git a/src/core/hle/service/vi/vi.h b/src/core/hle/service/vi/vi.h
index e7a38fdbd..799def36d 100644
--- a/src/core/hle/service/vi/vi.h
+++ b/src/core/hle/service/vi/vi.h
@@ -3,8 +3,6 @@
 
 #pragma once
 
-#include "common/common_types.h"
-
 namespace Core {
 class System;
 }
diff --git a/src/core/hle/service/vi/vi_types.h b/src/core/hle/service/vi/vi_types.h
index 59976fc72..0297676af 100644
--- a/src/core/hle/service/vi/vi_types.h
+++ b/src/core/hle/service/vi/vi_types.h
@@ -28,6 +28,22 @@ enum class Policy {
     Compositor,
 };
 
+enum class ConvertedScaleMode : u64 {
+    Freeze = 0,
+    ScaleToWindow = 1,
+    ScaleAndCrop = 2,
+    None = 3,
+    PreserveAspectRatio = 4,
+};
+
+enum class NintendoScaleMode : u32 {
+    None = 0,
+    Freeze = 1,
+    ScaleToWindow = 2,
+    ScaleAndCrop = 3,
+    PreserveAspectRatio = 4,
+};
+
 struct DisplayInfo {
     /// The name of this particular display.
     char display_name[0x40]{"Default"};