[*] monster hunter rise evidences for flicker/slowdown paths

cpmfile.json

@@ -340,10 +340,10 @@
         "version": "vulkan-sdk-%NUMERIC_VERSION%"
     },
     "xbyak": {
-        "hash": "e0aa0a603dd3ac1a39d82213df1e73c042831aec2d6b2fe382c899651eaae4ed7e8aeb6be9c41ea0097087c9d091961ab18f313cd6a9e10d621715ffd49bfe36",
+        "hash": "b6475276b2faaeb315734ea8f4f8bd87ededcee768961b39679bee547e7f3e98884d8b7851e176d861dab30a80a76e6ea302f8c111483607dde969b4797ea95a",
         "package": "xbyak",
         "repo": "herumi/xbyak",
-        "version": "v7.40.1"
+        "version": "v7.35.2"
     },
     "zlib": {
         "hash": "16fea4df307a68cf0035858abe2fd550250618a97590e202037acd18a666f57afc10f8836cbbd472d54a0e76539d0e558cb26f059d53de52ff90634bbf4f47d4",

src/audio_core/audio_core.cpp

@@ -12,7 +12,7 @@
 namespace AudioCore {
 
 AudioCore::AudioCore(Core::System& system) {
-    audio_manager.emplace(system);
+    audio_manager.emplace();
     CreateSinks();
     // Must be created after the sinks
     adsp.emplace(system, *output_sink);

src/audio_core/audio_in_manager.cpp

@@ -15,12 +15,12 @@
 
 namespace AudioCore::AudioIn {
 
-Manager::Manager(Core::System& system) {
+Manager::Manager(Core::System& system_) : system{system_} {
     std::iota(session_ids.begin(), session_ids.end(), 0);
     num_free_sessions = MaxInSessions;
 }
 
-Result Manager::AcquireSessionId(Core::System& system, size_t& session_id) {
+Result Manager::AcquireSessionId(size_t& session_id) {
     if (num_free_sessions == 0) {
         LOG_ERROR(Service_Audio, "All 4 AudioIn sessions are in use, cannot create any more");
         return Service::Audio::ResultOutOfSessions;
@@ -31,7 +31,7 @@ Result Manager::AcquireSessionId(Core::System& system, size_t& session_id) {
     return ResultSuccess;
 }
 
-void Manager::ReleaseSessionId(Core::System& system, const size_t session_id) {
+void Manager::ReleaseSessionId(const size_t session_id) {
     std::scoped_lock l{mutex};
     LOG_DEBUG(Service_Audio, "Freeing AudioIn session {}", session_id);
     session_ids[free_session_id] = session_id;
@@ -41,20 +41,21 @@ void Manager::ReleaseSessionId(Core::System& system, const size_t session_id) {
     applet_resource_user_ids[session_id] = 0;
 }
 
-Result Manager::LinkToManager(Core::System& system) {
+Result Manager::LinkToManager() {
     std::scoped_lock l{mutex};
     if (!linked_to_manager) {
-        system.AudioCore().GetAudioManager().SetInManager(&Manager::BufferReleaseAndRegister);
+        system.AudioCore().GetAudioManager().SetInManager(std::bind(&Manager::BufferReleaseAndRegister, this));
         linked_to_manager = true;
     }
 
     return ResultSuccess;
 }
 
-void Manager::Start(Core::System& system) {
+void Manager::Start() {
     if (sessions_started) {
         return;
     }
+
     std::scoped_lock l{mutex};
     for (auto& session : sessions) {
         if (session) {
@@ -65,19 +66,21 @@ void Manager::Start(Core::System& system) {
     sessions_started = true;
 }
 
-void Manager::BufferReleaseAndRegister(void *data, Core::System& system) noexcept {
-    Manager* this_ = (Manager*)data;
-    std::scoped_lock l{this_->mutex};
-    for (auto& session : this_->sessions) {
+void Manager::BufferReleaseAndRegister() {
+    std::scoped_lock l{mutex};
+    for (auto& session : sessions) {
         if (session != nullptr) {
             session->ReleaseAndRegisterBuffers();
         }
     }
 }
 
-u32 Manager::GetDeviceNames(Core::System& system, std::span<Renderer::AudioDevice::AudioDeviceName> names, [[maybe_unused]] const bool filter) {
+u32 Manager::GetDeviceNames(std::span<Renderer::AudioDevice::AudioDeviceName> names,
+                            [[maybe_unused]] const bool filter) {
     std::scoped_lock l{mutex};
-    LinkToManager(system);
+
+    LinkToManager();
+
     auto input_devices{Sink::GetDeviceListForSink(Settings::values.sink_id.GetValue(), true)};
     if (!input_devices.empty() && !names.empty()) {
         names[0] = Renderer::AudioDevice::AudioDeviceName("Uac");

src/audio_core/audio_in_manager.h

@@ -1,6 +1,3 @@
-// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
-// SPDX-License-Identifier: GPL-3.0-or-later
-
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -33,29 +30,31 @@ public:
      * @param session_id - Output session_id.
      * @return Result code.
      */
-    Result AcquireSessionId(Core::System& system, size_t& session_id);
+    Result AcquireSessionId(size_t& session_id);
 
     /**
      * Release a session id on close.
      *
      * @param session_id - Session id to free.
      */
-    void ReleaseSessionId(Core::System& system, const size_t session_id);
+    void ReleaseSessionId(size_t session_id);
 
     /**
      * Link the audio in manager to the main audio manager.
      *
      * @return Result code.
      */
-    Result LinkToManager(Core::System& system);
+    Result LinkToManager();
 
     /**
      * Start the audio in manager.
      */
-    void Start(Core::System& system);
+    void Start();
 
-    /// @brief Callback function, called by the audio manager when the audio in event is signalled.
-    static void BufferReleaseAndRegister(void *data, Core::System& system) noexcept;
+    /**
+     * Callback function, called by the audio manager when the audio in event is signalled.
+     */
+    void BufferReleaseAndRegister();
 
     /**
      * Get a list of audio in device names.
@@ -65,8 +64,10 @@ public:
      *
      * @return Number of names written.
      */
-    u32 GetDeviceNames(Core::System& system, std::span<Renderer::AudioDevice::AudioDeviceName> names, bool filter);
+    u32 GetDeviceNames(std::span<Renderer::AudioDevice::AudioDeviceName> names, bool filter);
 
+    /// Core system
+    Core::System& system;
     /// Array of session ids
     std::array<size_t, MaxInSessions> session_ids{};
     /// Array of resource user ids

src/audio_core/audio_manager.cpp

@@ -11,8 +11,8 @@
 
 namespace AudioCore {
 
-AudioManager::AudioManager(Core::System& system) {
-    thread = std::jthread([&](std::stop_token stop_token) {
+AudioManager::AudioManager() {
+    thread = std::jthread([this](std::stop_token stop_token) {
         Common::SetCurrentThreadName("AudioManager");
         std::unique_lock l{events.GetAudioEventLock()};
         events.ClearEvents();
@@ -25,7 +25,7 @@ AudioManager::AudioManager(Core::System& system) {
                 const auto event_type = Event::Type(i);
                 if (events.CheckAudioEventSet(event_type) || timed_out) {
                     if (buffer_events[i]) {
-                        buffer_events[i](this, system);
+                        buffer_events[i]();
                     }
                 }
                 events.SetAudioEvent(event_type, false);

src/audio_core/audio_manager.h

@@ -16,10 +16,6 @@
 
 #include "audio_core/audio_event.h"
 
-namespace Core {
-class System;
-}
-
 union Result;
 
 namespace AudioCore {
@@ -38,9 +34,10 @@ namespace AudioCore {
  * This is only used by audio in and audio out.
  */
 class AudioManager {
-    using BufferEventFunc = void (*)(void *data, Core::System& system) noexcept;
+    using BufferEventFunc = std::function<void()>;
+
 public:
-    explicit AudioManager(Core::System& system);
+    explicit AudioManager();
 
     /**
      * Shutdown the audio manager.

src/audio_core/audio_out_manager.cpp

@@ -14,12 +14,12 @@
 
 namespace AudioCore::AudioOut {
 
-Manager::Manager(Core::System& system) {
+Manager::Manager(Core::System& system_) : system{system_} {
     std::iota(session_ids.begin(), session_ids.end(), 0);
     num_free_sessions = MaxOutSessions;
 }
 
-Result Manager::AcquireSessionId(Core::System& system, size_t& session_id) {
+Result Manager::AcquireSessionId(size_t& session_id) {
     if (num_free_sessions == 0) {
         LOG_ERROR(Service_Audio, "All 12 Audio Out sessions are in use, cannot create any more");
         return Service::Audio::ResultOutOfSessions;
@@ -30,7 +30,7 @@ Result Manager::AcquireSessionId(Core::System& system, size_t& session_id) {
     return ResultSuccess;
 }
 
-void Manager::ReleaseSessionId(Core::System& system, const size_t session_id) {
+void Manager::ReleaseSessionId(const size_t session_id) {
     std::scoped_lock l{mutex};
     LOG_DEBUG(Service_Audio, "Freeing AudioOut session {}", session_id);
     session_ids[free_session_id] = session_id;
@@ -40,17 +40,17 @@ void Manager::ReleaseSessionId(Core::System& system, const size_t session_id) {
     applet_resource_user_ids[session_id] = 0;
 }
 
-Result Manager::LinkToManager(Core::System& system) {
+Result Manager::LinkToManager() {
     std::scoped_lock l{mutex};
     if (!linked_to_manager) {
-        system.AudioCore().GetAudioManager().SetOutManager(&Manager::BufferReleaseAndRegister);
+        system.AudioCore().GetAudioManager().SetOutManager(std::bind(&Manager::BufferReleaseAndRegister, this));
         linked_to_manager = true;
     }
 
     return ResultSuccess;
 }
 
-void Manager::Start(Core::System& system) {
+void Manager::Start() {
     if (sessions_started) {
         return;
     }
@@ -65,14 +65,19 @@ void Manager::Start(Core::System& system) {
     sessions_started = true;
 }
 
-void Manager::BufferReleaseAndRegister(void *data, Core::System& system) noexcept {
-    Manager* this_ = (Manager*)data;
-    std::scoped_lock l{this_->mutex};
-    for (auto& session : this_->sessions) {
+void Manager::BufferReleaseAndRegister() {
+    std::scoped_lock l{mutex};
+    for (auto& session : sessions) {
         if (session != nullptr) {
             session->ReleaseAndRegisterBuffers();
         }
     }
 }
 
+u32 Manager::GetAudioOutDeviceNames(
+    std::vector<Renderer::AudioDevice::AudioDeviceName>& names) const {
+    names.emplace_back("DeviceOut");
+    return 1;
+}
+
 } // namespace AudioCore::AudioOut

src/audio_core/audio_out_manager.h

@@ -1,6 +1,3 @@
-// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
-// SPDX-License-Identifier: GPL-3.0-or-later
-
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -32,32 +29,42 @@ public:
      * @param session_id - Output session_id.
      * @return Result code.
      */
-    Result AcquireSessionId(Core::System& system, size_t& session_id);
+    Result AcquireSessionId(size_t& session_id);
 
     /**
      * Release a session id on close.
      *
      * @param session_id - Session id to free.
      */
-    void ReleaseSessionId(Core::System& system, const size_t session_id);
+    void ReleaseSessionId(size_t session_id);
 
     /**
      * Link this manager to the main audio manager.
      *
      * @return Result code.
      */
-    Result LinkToManager(Core::System& system);
+    Result LinkToManager();
 
     /**
      * Start the audio out manager.
      */
-    void Start(Core::System& system);
+    void Start();
 
     /**
      * Callback function, called by the audio manager when the audio out event is signalled.
      */
-    static void BufferReleaseAndRegister(void* data, Core::System& system) noexcept;
+    void BufferReleaseAndRegister();
 
+    /**
+     * Get a list of audio out device names.
+     *
+     * @param names     - Output container to write names to.
+     * @return Number of names written.
+     */
+    u32 GetAudioOutDeviceNames(std::vector<Renderer::AudioDevice::AudioDeviceName>& names) const;
+
+    /// Core system
+    Core::System& system;
     /// Array of session ids
     std::array<size_t, MaxOutSessions> session_ids{};
     /// Array of resource user ids

src/audio_core/audio_render_manager.cpp

@@ -1,20 +1,15 @@
-// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
-// SPDX-License-Identifier: GPL-3.0-or-later
-
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "audio_core/audio_render_manager.h"
 #include "audio_core/common/audio_renderer_parameter.h"
-#include "audio_core/renderer/system_manager.h"
 #include "audio_core/common/feature_support.h"
 #include "core/core.h"
 
 namespace AudioCore::Renderer {
 
 Manager::Manager(Core::System& system_)
-    : system_manager{std::make_unique<SystemManager>(system_)}
-{
+    : system{system_}, system_manager{std::make_unique<SystemManager>(system)} {
     std::iota(session_ids.begin(), session_ids.end(), 0);
 }
 
@@ -64,11 +59,11 @@ u32 Manager::GetSessionCount() const {
     return session_count;
 }
 
-bool Manager::AddSystem(Renderer::System& system_) {
+bool Manager::AddSystem(System& system_) {
     return system_manager->Add(system_);
 }
 
-bool Manager::RemoveSystem(Renderer::System& system_) {
+bool Manager::RemoveSystem(System& system_) {
     return system_manager->Remove(system_);
 }
 

src/audio_core/audio_render_manager.h

@@ -1,6 +1,3 @@
-// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
-// SPDX-License-Identifier: GPL-3.0-or-later
-
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -74,7 +71,7 @@ public:
      * @param system - The system to add.
      * @return True if the system was successfully added, otherwise false.
      */
-    bool AddSystem(Renderer::System& system);
+    bool AddSystem(System& system);
 
     /**
      * Remove a renderer system from the manager.
@@ -82,7 +79,7 @@ public:
      * @param system - The system to remove.
      * @return True if the system was successfully removed, otherwise false.
      */
-    bool RemoveSystem(Renderer::System& system);
+    bool RemoveSystem(System& system);
 
     /**
      * Free a session id when the system wants to shut down.
@@ -92,6 +89,8 @@ public:
     void ReleaseSessionId(s32 session_id);
 
 private:
+    /// Core system
+    Core::System& system;
     /// Session ids, -1 when in use
     std::array<s32, MaxRendererSessions> session_ids{};
     /// Number of active renderers

src/audio_core/common/workbuffer_allocator.h

@@ -1,6 +1,3 @@
-// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
-// SPDX-License-Identifier: GPL-3.0-or-later
-
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -19,9 +16,8 @@ namespace AudioCore {
  */
 class WorkbufferAllocator {
 public:
-    explicit WorkbufferAllocator(std::span<u8> buffer_)
-        : buffer{buffer_}
-    {}
+    explicit WorkbufferAllocator(std::span<u8> buffer_, u64 size_)
+        : buffer{reinterpret_cast<u64>(buffer_.data())}, size{size_} {}
 
     /**
      * Allocate the given count of T elements, aligned to alignment.
@@ -33,31 +29,36 @@ public:
     template <typename T>
     std::span<T> Allocate(u64 count, u64 alignment) {
         u64 out{0};
-        u64 byte_size = count * sizeof(T);
+        u64 byte_size{count * sizeof(T)};
+
         if (byte_size > 0) {
-            auto current{uintptr_t(buffer.data()) + offset};
+            auto current{buffer + offset};
             auto aligned_buffer{Common::AlignUp(current, alignment)};
-            if (aligned_buffer + byte_size <= uintptr_t(buffer.data()) + buffer.size()) {
+            if (aligned_buffer + byte_size <= buffer + size) {
                 out = aligned_buffer;
-                offset = byte_size - uintptr_t(buffer.data()) + aligned_buffer;
+                offset = byte_size - buffer + aligned_buffer;
             } else {
                 LOG_ERROR(
                     Service_Audio,
                     "Allocated buffer was too small to hold new alloc.\nAllocator size={:08X}, "
                     "offset={:08X}.\nAttempting to allocate {:08X} with alignment={:02X}",
-                    buffer.size(), offset, byte_size, alignment);
+                    size, offset, byte_size, alignment);
                 count = 0;
             }
         }
+
         return std::span<T>(reinterpret_cast<T*>(out), count);
     }
 
-    /// @brief Align the current offset to the given alignment.
-    /// @param alignment - The required starting alignment.
+    /**
+     * Align the current offset to the given alignment.
+     *
+     * @param alignment - The required starting alignment.
+     */
     void Align(u64 alignment) {
-        auto current{uintptr_t(buffer.data()) + offset};
+        auto current{buffer + offset};
         auto aligned_buffer{Common::AlignUp(current, alignment)};
-        offset = 0 - uintptr_t(buffer.data()) + aligned_buffer;
+        offset = 0 - buffer + aligned_buffer;
     }
 
     /**
@@ -75,7 +76,7 @@ public:
      * @return The size of the current buffer.
      */
     u64 GetSize() const {
-        return buffer.size();
+        return size;
     }
 
     /**
@@ -84,11 +85,14 @@ public:
      * @return The remaining size left in the buffer.
      */
     u64 GetRemainingSize() const {
-        return buffer.size() - offset;
+        return size - offset;
     }
 
 private:
-    const std::span<u8> buffer;
+    /// The buffer into which we are allocating.
+    u64 buffer;
+    /// Size of the buffer we're allocating to.
+    u64 size;
     /// Current offset into the buffer, an error will be thrown if it exceeds size.
     u64 offset{};
 };

src/audio_core/in/audio_in.cpp

@@ -1,6 +1,3 @@
-// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
-// SPDX-License-Identifier: GPL-3.0-or-later
-
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -11,43 +8,42 @@
 namespace AudioCore::AudioIn {
 
 In::In(Core::System& system_, Manager& manager_, Kernel::KEvent* event_, size_t session_id_)
-    : manager{manager_}, parent_mutex{manager.mutex}, event{event_}
-    , audio_system{system_, event, session_id_}
-{}
+    : manager{manager_}, parent_mutex{manager.mutex}, event{event_}, system{system_, event,
+                                                                            session_id_} {}
 
-void In::Free(Core::System& system) {
+void In::Free() {
     std::scoped_lock l{parent_mutex};
-    manager.ReleaseSessionId(system, audio_system.GetSessionId());
+    manager.ReleaseSessionId(system.GetSessionId());
 }
 
 System& In::GetSystem() {
-    return audio_system;
+    return system;
 }
 
 AudioIn::State In::GetState() {
     std::scoped_lock l{parent_mutex};
-    return audio_system.GetState();
+    return system.GetState();
 }
 
 Result In::StartSystem() {
     std::scoped_lock l{parent_mutex};
-    return audio_system.Start();
+    return system.Start();
 }
 
 void In::StartSession() {
     std::scoped_lock l{parent_mutex};
-    audio_system.StartSession();
+    system.StartSession();
 }
 
 Result In::StopSystem() {
     std::scoped_lock l{parent_mutex};
-    return audio_system.Stop();
+    return system.Stop();
 }
 
 Result In::AppendBuffer(const AudioInBuffer& buffer, u64 tag) {
     std::scoped_lock l{parent_mutex};
 
-    if (audio_system.AppendBuffer(buffer, tag)) {
+    if (system.AppendBuffer(buffer, tag)) {
         return ResultSuccess;
     }
     return Service::Audio::ResultBufferCountReached;
@@ -55,20 +51,20 @@ Result In::AppendBuffer(const AudioInBuffer& buffer, u64 tag) {
 
 void In::ReleaseAndRegisterBuffers() {
     std::scoped_lock l{parent_mutex};
-    if (audio_system.GetState() == State::Started) {
-        audio_system.ReleaseBuffers();
-        audio_system.RegisterBuffers();
+    if (system.GetState() == State::Started) {
+        system.ReleaseBuffers();
+        system.RegisterBuffers();
     }
 }
 
 bool In::FlushAudioInBuffers() {
     std::scoped_lock l{parent_mutex};
-    return audio_system.FlushAudioInBuffers();
+    return system.FlushAudioInBuffers();
 }
 
 u32 In::GetReleasedBuffers(std::span<u64> tags) {
     std::scoped_lock l{parent_mutex};
-    return audio_system.GetReleasedBuffers(tags);
+    return system.GetReleasedBuffers(tags);
 }
 
 Kernel::KReadableEvent& In::GetBufferEvent() {
@@ -78,27 +74,27 @@ Kernel::KReadableEvent& In::GetBufferEvent() {
 
 f32 In::GetVolume() const {
     std::scoped_lock l{parent_mutex};
-    return audio_system.GetVolume();
+    return system.GetVolume();
 }
 
 void In::SetVolume(f32 volume) {
     std::scoped_lock l{parent_mutex};
-    audio_system.SetVolume(volume);
+    system.SetVolume(volume);
 }
 
 bool In::ContainsAudioBuffer(u64 tag) const {
     std::scoped_lock l{parent_mutex};
-    return audio_system.ContainsAudioBuffer(tag);
+    return system.ContainsAudioBuffer(tag);
 }
 
 u32 In::GetBufferCount() const {
     std::scoped_lock l{parent_mutex};
-    return audio_system.GetBufferCount();
+    return system.GetBufferCount();
 }
 
 u64 In::GetPlayedSampleCount() const {
     std::scoped_lock l{parent_mutex};
-    return audio_system.GetPlayedSampleCount();
+    return system.GetPlayedSampleCount();
 }
 
 } // namespace AudioCore::AudioIn

src/audio_core/in/audio_in.h

@@ -1,6 +1,3 @@
-// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
-// SPDX-License-Identifier: GPL-3.0-or-later
-
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -33,7 +30,7 @@ public:
     /**
      * Free this audio in from the audio in manager.
      */
-    void Free(Core::System& system);
+    void Free();
 
     /**
      * Get this audio in's system.
@@ -144,7 +141,7 @@ private:
     /// Buffer event, signalled when buffers are ready to be released
     Kernel::KEvent* event;
     /// Main audio in system
-    System audio_system;
+    System system;
 };
 
 } // namespace AudioCore::AudioIn

src/audio_core/out/audio_out.cpp

@@ -1,6 +1,3 @@
-// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
-// SPDX-License-Identifier: GPL-3.0-or-later
-
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -11,43 +8,42 @@
 namespace AudioCore::AudioOut {
 
 Out::Out(Core::System& system_, Manager& manager_, Kernel::KEvent* event_, size_t session_id_)
-    : manager{manager_}, parent_mutex{manager.mutex}, event{event_}
-    , audio_system{system_, event, session_id_}
-{}
+    : manager{manager_}, parent_mutex{manager.mutex}, event{event_}, system{system_, event,
+                                                                            session_id_} {}
 
-void Out::Free(Core::System& system) {
+void Out::Free() {
     std::scoped_lock l{parent_mutex};
-    manager.ReleaseSessionId(system, audio_system.GetSessionId());
+    manager.ReleaseSessionId(system.GetSessionId());
 }
 
 System& Out::GetSystem() {
-    return audio_system;
+    return system;
 }
 
 AudioOut::State Out::GetState() {
     std::scoped_lock l{parent_mutex};
-    return audio_system.GetState();
+    return system.GetState();
 }
 
 Result Out::StartSystem() {
     std::scoped_lock l{parent_mutex};
-    return audio_system.Start();
+    return system.Start();
 }
 
 void Out::StartSession() {
     std::scoped_lock l{parent_mutex};
-    audio_system.StartSession();
+    system.StartSession();
 }
 
 Result Out::StopSystem() {
     std::scoped_lock l{parent_mutex};
-    return audio_system.Stop();
+    return system.Stop();
 }
 
 Result Out::AppendBuffer(const AudioOutBuffer& buffer, const u64 tag) {
     std::scoped_lock l{parent_mutex};
 
-    if (audio_system.AppendBuffer(buffer, tag)) {
+    if (system.AppendBuffer(buffer, tag)) {
         return ResultSuccess;
     }
     return Service::Audio::ResultBufferCountReached;
@@ -55,20 +51,20 @@ Result Out::AppendBuffer(const AudioOutBuffer& buffer, const u64 tag) {
 
 void Out::ReleaseAndRegisterBuffers() {
     std::scoped_lock l{parent_mutex};
-    if (audio_system.GetState() == State::Started) {
-        audio_system.ReleaseBuffers();
-        audio_system.RegisterBuffers();
+    if (system.GetState() == State::Started) {
+        system.ReleaseBuffers();
+        system.RegisterBuffers();
     }
 }
 
 bool Out::FlushAudioOutBuffers() {
     std::scoped_lock l{parent_mutex};
-    return audio_system.FlushAudioOutBuffers();
+    return system.FlushAudioOutBuffers();
 }
 
 u32 Out::GetReleasedBuffers(std::span<u64> tags) {
     std::scoped_lock l{parent_mutex};
-    return audio_system.GetReleasedBuffers(tags);
+    return system.GetReleasedBuffers(tags);
 }
 
 Kernel::KReadableEvent& Out::GetBufferEvent() {
@@ -78,27 +74,27 @@ Kernel::KReadableEvent& Out::GetBufferEvent() {
 
 f32 Out::GetVolume() const {
     std::scoped_lock l{parent_mutex};
-    return audio_system.GetVolume();
+    return system.GetVolume();
 }
 
 void Out::SetVolume(const f32 volume) {
     std::scoped_lock l{parent_mutex};
-    audio_system.SetVolume(volume);
+    system.SetVolume(volume);
 }
 
 bool Out::ContainsAudioBuffer(const u64 tag) const {
     std::scoped_lock l{parent_mutex};
-    return audio_system.ContainsAudioBuffer(tag);
+    return system.ContainsAudioBuffer(tag);
 }
 
 u32 Out::GetBufferCount() const {
     std::scoped_lock l{parent_mutex};
-    return audio_system.GetBufferCount();
+    return system.GetBufferCount();
 }
 
 u64 Out::GetPlayedSampleCount() const {
     std::scoped_lock l{parent_mutex};
-    return audio_system.GetPlayedSampleCount();
+    return system.GetPlayedSampleCount();
 }
 
 } // namespace AudioCore::AudioOut

src/audio_core/out/audio_out.h

@@ -1,6 +1,3 @@
-// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
-// SPDX-License-Identifier: GPL-3.0-or-later
-
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -33,7 +30,7 @@ public:
     /**
      * Free this audio out from the audio out manager.
      */
-    void Free(Core::System& system);
+    void Free();
 
     /**
      * Get this audio out's system.
@@ -144,7 +141,7 @@ private:
     /// Buffer event, signalled when buffers are ready to be released
     Kernel::KEvent* event;
     /// Main audio out system
-    System audio_system;
+    System system;
 };
 
 } // namespace AudioCore::AudioOut

src/audio_core/renderer/audio_renderer.cpp

@@ -1,6 +1,3 @@
-// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
-// SPDX-License-Identifier: GPL-3.0-or-later
-
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -16,48 +13,56 @@
 namespace AudioCore::Renderer {
 
 Renderer::Renderer(Core::System& system_, Manager& manager_, Kernel::KEvent* rendered_event)
-    : system{system_}, manager{manager_}
-    , audio_system{system_, rendered_event}
-{}
+    : core{system_}, manager{manager_}, system{system_, rendered_event} {}
 
-Result Renderer::Initialize(const AudioRendererParameterInternal& params, Kernel::KTransferMemory* transfer_memory, const u64 transfer_memory_size, Kernel::KProcess* process_handle, const u64 applet_resource_user_id, const s32 session_id) {
+Result Renderer::Initialize(const AudioRendererParameterInternal& params,
+                            Kernel::KTransferMemory* transfer_memory,
+                            const u64 transfer_memory_size, Kernel::KProcess* process_handle,
+                            const u64 applet_resource_user_id, const s32 session_id) {
     if (params.execution_mode == ExecutionMode::Auto) {
-        if (!manager.AddSystem(audio_system)) {
-            LOG_ERROR(Service_Audio, "Both Audio Render sessions are in use, cannot create any more");
+        if (!manager.AddSystem(system)) {
+            LOG_ERROR(Service_Audio,
+                      "Both Audio Render sessions are in use, cannot create any more");
             return Service::Audio::ResultOutOfSessions;
         }
         system_registered = true;
     }
 
     initialized = true;
-    audio_system.Initialize(params, transfer_memory, transfer_memory_size, process_handle, applet_resource_user_id, session_id);
+    system.Initialize(params, transfer_memory, transfer_memory_size, process_handle,
+                      applet_resource_user_id, session_id);
+
     return ResultSuccess;
 }
 
 void Renderer::Finalize() {
-    auto const session_id{audio_system.GetSessionId()};
-    audio_system.Finalize();
+    auto session_id{system.GetSessionId()};
+
+    system.Finalize();
+
     if (system_registered) {
-        manager.RemoveSystem(audio_system);
+        manager.RemoveSystem(system);
         system_registered = false;
     }
+
     manager.ReleaseSessionId(session_id);
 }
 
 System& Renderer::GetSystem() {
-    return audio_system;
+    return system;
 }
 
 void Renderer::Start() {
-    audio_system.Start();
+    system.Start();
 }
 
 void Renderer::Stop() {
-    audio_system.Stop();
+    system.Stop();
 }
 
-Result Renderer::RequestUpdate(std::span<const u8> input, std::span<u8> performance, std::span<u8> output) {
-    return audio_system.Update(input, performance, output);
+Result Renderer::RequestUpdate(std::span<const u8> input, std::span<u8> performance,
+                               std::span<u8> output) {
+    return system.Update(input, performance, output);
 }
 
 } // namespace AudioCore::Renderer

src/audio_core/renderer/audio_renderer.h

@@ -1,6 +1,3 @@
-// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
-// SPDX-License-Identifier: GPL-3.0-or-later
-
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -87,7 +84,7 @@ public:
 
 private:
     /// System core
-    Core::System& system;
+    Core::System& core;
     /// Manager this renderer is registered with
     Manager& manager;
     /// Is the audio renderer initialized?
@@ -95,7 +92,7 @@ private:
     /// Is the system registered with the manager?
     bool system_registered{};
     /// Audio render system, main driver of audio rendering
-    System audio_system;
+    System system;
 };
 
 } // namespace Renderer

src/audio_core/renderer/system.cpp

@@ -145,7 +145,7 @@ Result System::Initialize(const AudioRendererParameterInternal& params,
     PoolMapper pool_mapper(process_handle, false);
     pool_mapper.InitializeSystemPool(memory_pool_info, workbuffer.get(), workbuffer_size);
 
-    WorkbufferAllocator allocator({workbuffer.get(), workbuffer_size});
+    WorkbufferAllocator allocator({workbuffer.get(), workbuffer_size}, workbuffer_size);
 
     samples_workbuffer =
         allocator.Allocate<s32>((voice_channels + mix_buffer_count) * sample_count, 0x10);

src/core/hle/kernel/k_server_session.cpp

@@ -1216,7 +1216,7 @@ Result KServerSession::ReceiveRequest(KernelCore& kernel, uintptr_t server_messa
 }
 
 Result KServerSession::SendReply(KernelCore& kernel, uintptr_t server_message, uintptr_t server_buffer_size,
-                                 KPhysicalAddress server_message_paddr, bool is_hle, bool session_closed) {
+                                 KPhysicalAddress server_message_paddr, bool is_hle) {
     // Lock the session.
     KScopedLightLock lk{m_lock};
 
@@ -1248,7 +1248,7 @@ Result KServerSession::SendReply(KernelCore& kernel, uintptr_t server_message, u
     KEvent* event = request->GetEvent();
 
     // Check whether we're closed.
-    const bool closed = (client_thread == nullptr || m_parent->IsClientClosed() || session_closed);
+    const bool closed = (client_thread == nullptr || m_parent->IsClientClosed());
 
     Result result = ResultSuccess;
     if (!closed) {

src/core/hle/kernel/k_server_session.h

@@ -54,14 +54,14 @@ public:
 
     Result OnRequest(KernelCore& kernel, KSessionRequest* request);
     Result SendReply(KernelCore& kernel, uintptr_t server_message, uintptr_t server_buffer_size,
-                     KPhysicalAddress server_message_paddr, bool is_hle = false, bool session_closed = false);
+                     KPhysicalAddress server_message_paddr, bool is_hle = false);
     Result ReceiveRequest(KernelCore& kernel, uintptr_t server_message, uintptr_t server_buffer_size,
                           KPhysicalAddress server_message_paddr,
                           std::shared_ptr<Service::HLERequestContext>* out_context = nullptr,
                           std::weak_ptr<Service::SessionRequestManager> manager = {});
 
-    Result SendReplyHLE(KernelCore& kernel, bool session_closed = false) {
-        R_RETURN(this->SendReply(kernel, 0, 0, 0, true, session_closed));
+    Result SendReplyHLE(KernelCore& kernel) {
+        R_RETURN(this->SendReply(kernel, 0, 0, 0, true));
     }
 
     Result ReceiveRequestHLE(KernelCore& kernel, std::shared_ptr<Service::HLERequestContext>* out_context,

src/core/hle/service/audio/audio_in.cpp

@@ -50,7 +50,7 @@ IAudioIn::IAudioIn(Core::System& system_, Manager& manager, size_t session_id,
 }
 
 IAudioIn::~IAudioIn() {
-    impl->Free(system);
+    impl->Free();
     service_context.CloseEvent(event);
     process->Close(system.Kernel());
 }

src/core/hle/service/audio/audio_in_manager.cpp

@@ -1,6 +1,3 @@
-// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
-// SPDX-License-Identifier: GPL-3.0-or-later
-
 // SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -68,7 +65,7 @@ Result IAudioInManager::OpenAudioInAuto(
 Result IAudioInManager::ListAudioInsAutoFiltered(
     OutArray<AudioDeviceName, BufferAttr_HipcAutoSelect> out_audio_ins, Out<u32> out_count) {
     LOG_DEBUG(Service_Audio, "called");
-    *out_count = impl->GetDeviceNames(system, out_audio_ins, true);
+    *out_count = impl->GetDeviceNames(out_audio_ins, true);
     R_SUCCEED();
 }
 
@@ -93,8 +90,8 @@ Result IAudioInManager::OpenAudioInProtocolSpecified(
 
     size_t new_session_id{};
 
-    R_TRY(impl->LinkToManager(system));
-    R_TRY(impl->AcquireSessionId(system, new_session_id));
+    R_TRY(impl->LinkToManager());
+    R_TRY(impl->AcquireSessionId(new_session_id));
 
     LOG_DEBUG(Service_Audio, "Opening new AudioIn, session_id={}, free sessions={}", new_session_id,
               impl->num_free_sessions);

src/core/hle/service/audio/audio_out.cpp

@@ -46,7 +46,7 @@ IAudioOut::IAudioOut(Core::System& system_, Manager& manager, size_t session_id,
 }
 
 IAudioOut::~IAudioOut() {
-    impl->Free(system);
+    impl->Free();
     service_context.CloseEvent(event);
     process->Close(system.Kernel());
 }

src/core/hle/service/audio/audio_out_manager.cpp

@@ -77,8 +77,8 @@ Result IAudioOutManager::OpenAudioOutAuto(
     }
 
     size_t new_session_id{};
-    R_TRY(impl->LinkToManager(system));
-    R_TRY(impl->AcquireSessionId(system, new_session_id));
+    R_TRY(impl->LinkToManager());
+    R_TRY(impl->AcquireSessionId(new_session_id));
 
     const auto device_name = Common::StringFromBuffer(name[0].name);
     LOG_DEBUG(Service_Audio, "Opening new AudioOut, sessionid={}, free sessions={}", new_session_id,

src/core/hle/service/filesystem/filesystem.cpp

@@ -227,13 +227,12 @@ Result VfsDirectoryServiceWrapper::RenameDirectory(const std::string& src_path_,
     std::string src_path(Common::FS::SanitizePath(src_path_));
     std::string dest_path(Common::FS::SanitizePath(dest_path_));
     auto src = GetDirectoryRelativeWrapped(backing, src_path);
-    if (src == nullptr)
-        return FileSys::ResultPathNotFound;
-
     if (Common::FS::GetParentPath(src_path) == Common::FS::GetParentPath(dest_path)) {
-        std::string full_src_path = backing->GetFullPath() + "/" + src_path;
-        std::string full_dest_path = backing->GetFullPath() + "/" + dest_path;
-        if (!Common::FS::RenameDir(full_src_path, full_dest_path)) {
+        // Use more-optimized vfs implementation rename.
+        if (src == nullptr)
+            return FileSys::ResultPathNotFound;
+        if (!src->Rename(Common::FS::GetFilename(dest_path))) {
+            // TODO(DarkLordZach): Find a better error code for this
             return ResultUnknown;
         }
         return ResultSuccess;

src/core/hle/service/filesystem/fsp/fs_i_filesystem.cpp

@@ -24,7 +24,7 @@ IFileSystem::IFileSystem(Core::System& system_, FileSys::VirtualDir dir_, SizeGe
         {3, D<&IFileSystem::DeleteDirectory>, "DeleteDirectory"},
         {4, D<&IFileSystem::DeleteDirectoryRecursively>, "DeleteDirectoryRecursively"},
         {5, D<&IFileSystem::RenameFile>, "RenameFile"},
-        {6, D<&IFileSystem::RenameDirectory>, "RenameDirectory"},
+        {6, nullptr, "RenameDirectory"},
         {7, D<&IFileSystem::GetEntryType>, "GetEntryType"},
         {8, D<&IFileSystem::OpenFile>, "OpenFile"},
         {9, D<&IFileSystem::OpenDirectory>, "OpenDirectory"},
@@ -88,14 +88,6 @@ Result IFileSystem::RenameFile(
     R_RETURN(backend->RenameFile(FileSys::Path(old_path->str), FileSys::Path(new_path->str)));
 }
 
-Result IFileSystem::RenameDirectory(
-    const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> old_path,
-    const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> new_path) {
-    LOG_DEBUG(Service_FS, "called. directory '{}' to directory '{}'", old_path->str, new_path->str);
-
-    R_RETURN(backend->RenameDirectory(FileSys::Path(old_path->str), FileSys::Path(new_path->str)));
-}
-
 Result IFileSystem::OpenFile(OutInterface<IFile> out_interface,
                              const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> path,
                              u32 mode) {

src/core/hle/service/filesystem/fsp/fs_i_filesystem.h

@@ -1,6 +1,3 @@
-// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
-// SPDX-License-Identifier: GPL-3.0-or-later
-
 // SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -39,8 +36,6 @@ public:
         const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> path);
     Result RenameFile(const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> old_path,
                       const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> new_path);
-    Result RenameDirectory(const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> old_path,
-                           const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> new_path);
     Result OpenFile(OutInterface<IFile> out_interface,
                     const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> path, u32 mode);
     Result OpenDirectory(OutInterface<IDirectory> out_interface,

src/core/hle/service/server_manager.cpp

@@ -393,7 +393,7 @@ Result ServerManager::CompleteSyncRequest(Session* session) {
     }
 
     // Send the reply.
-    res = server_session->SendReplyHLE(m_system.Kernel(), service_res == IPC::ResultSessionClosed);
+    res = server_session->SendReplyHLE(m_system.Kernel());
 
     // If the session has been closed, we're done.
     if (res == Kernel::ResultSessionClosed || service_res == IPC::ResultSessionClosed) {

src/dynarmic/src/dynarmic/backend/x64/a32_emit_x64.cpp

@@ -247,7 +247,7 @@ void A32EmitX64::GenTerminalHandlers() {
     calculate_location_descriptor();
     code.mov(eax, dword[code.ABI_JIT_PTR + offsetof(A32JitState, rsb_ptr)]);
     code.sub(eax, 1);
-    code.and_(eax, u32(A32JitState::RSB_PTR_MASK));
+    code.and_(eax, u32(A32JitState::RSBPtrMask));
     code.mov(dword[code.ABI_JIT_PTR + offsetof(A32JitState, rsb_ptr)], eax);
     code.cmp(rbx, qword[code.ABI_JIT_PTR + offsetof(A32JitState, rsb_location_descriptors) + rax * sizeof(u64)]);
     if (conf.HasOptimization(OptimizationFlag::FastDispatch)) {

src/dynarmic/src/dynarmic/backend/x64/a32_interface.cpp

@@ -37,9 +37,9 @@ using namespace Backend::X64;
 
 static RunCodeCallbacks GenRunCodeCallbacks(A32::UserCallbacks* cb, CodePtr (*LookupBlock)(void* lookup_block_arg), void* arg, const A32::UserConfig& conf) {
     return RunCodeCallbacks{
-        ArgCallback(LookupBlock, reinterpret_cast<u64>(arg)),
-        ArgCallback(Devirtualize<&A32::UserCallbacks::AddTicks>(cb)),
-        ArgCallback(Devirtualize<&A32::UserCallbacks::GetTicksRemaining>(cb)),
+        std::make_unique<ArgCallback>(LookupBlock, reinterpret_cast<u64>(arg)),
+        std::make_unique<ArgCallback>(Devirtualize<&A32::UserCallbacks::AddTicks>(cb)),
+        std::make_unique<ArgCallback>(Devirtualize<&A32::UserCallbacks::GetTicksRemaining>(cb)),
         conf.enable_cycle_counting,
     };
 }
@@ -79,7 +79,7 @@ struct Jit::Impl {
         jit_interface->is_executing = true;
         const CodePtr current_codeptr = [this] {
             // RSB optimization
-            const u32 new_rsb_ptr = (jit_state.rsb_ptr - 1) & A32JitState::RSB_PTR_MASK;
+            const u32 new_rsb_ptr = (jit_state.rsb_ptr - 1) & A32JitState::RSBPtrMask;
             if (jit_state.GetUniqueHash() == jit_state.rsb_location_descriptors[new_rsb_ptr]) {
                 jit_state.rsb_ptr = new_rsb_ptr;
                 return reinterpret_cast<CodePtr>(jit_state.rsb_codeptrs[new_rsb_ptr]);

src/dynarmic/src/dynarmic/backend/x64/a32_jitstate.h

@@ -27,9 +27,6 @@ struct A32JitState {
 
     A32JitState() { ResetRSB(); }
 
-    static constexpr std::size_t RSB_SIZE = 8;  // MUST be a power of 2.
-    static constexpr std::size_t RSB_PTR_MASK = RSB_SIZE - 1;
-
     std::array<u32, 16> Reg{};  // Current register file.
     // TODO: Mode-specific register sets unimplemented.
 
@@ -39,9 +36,8 @@ struct A32JitState {
     u32 cpsr_q = 0;
     u32 cpsr_nzcv = 0;
     u32 cpsr_jaifm = 0;
-    u32 fpsr_exc = 0;
-    u32 fpsr_qc = 0;
-    u32 fpsr_nzcv = 0;
+    u32 Cpsr() const;
+    void SetCpsr(u32 cpsr);
 
     alignas(16) std::array<u32, 64> ExtReg{};  // Extension registers.
 
@@ -53,19 +49,21 @@ struct A32JitState {
     // Exclusive state
     u32 exclusive_state = 0;
 
+    static constexpr std::size_t RSBSize = 8;  // MUST be a power of 2.
+    static constexpr std::size_t RSBPtrMask = RSBSize - 1;
     u32 rsb_ptr = 0;
-    std::array<u64, RSB_SIZE> rsb_location_descriptors;
-    std::array<u64, RSB_SIZE> rsb_codeptrs;
-
-    u32 Cpsr() const;
-    void SetCpsr(u32 cpsr);
-
+    std::array<u64, RSBSize> rsb_location_descriptors;
+    std::array<u64, RSBSize> rsb_codeptrs;
     void ResetRSB();
+
+    u32 fpsr_exc = 0;
+    u32 fpsr_qc = 0;
+    u32 fpsr_nzcv = 0;
     u32 Fpscr() const;
     void SetFpscr(u32 FPSCR);
 
     u64 GetUniqueHash() const noexcept {
-        return (u64(upper_location_descriptor) << 32) | (u64(Reg[15]));
+        return (static_cast<u64>(upper_location_descriptor) << 32) | (static_cast<u64>(Reg[15]));
     }
 
     void TransferJitState(const A32JitState& src, bool reset_rsb) {

src/dynarmic/src/dynarmic/backend/x64/a64_emit_x64.cpp

@@ -208,7 +208,7 @@ void A64EmitX64::GenTerminalHandlers() {
     calculate_location_descriptor();
     code.mov(eax, dword[code.ABI_JIT_PTR + offsetof(A64JitState, rsb_ptr)]);
     code.sub(eax, 1);
-    code.and_(eax, u32(A64JitState::RSB_PTR_MASK));
+    code.and_(eax, u32(A64JitState::RSBPtrMask));
     code.mov(dword[code.ABI_JIT_PTR + offsetof(A64JitState, rsb_ptr)], eax);
     code.cmp(rbx, qword[code.ABI_JIT_PTR + offsetof(A64JitState, rsb_location_descriptors) + rax * sizeof(u64)]);
     if (conf.HasOptimization(OptimizationFlag::FastDispatch)) {

src/dynarmic/src/dynarmic/backend/x64/a64_interface.cpp

@@ -33,9 +33,9 @@ using namespace Backend::X64;
 
 static RunCodeCallbacks GenRunCodeCallbacks(A64::UserCallbacks* cb, CodePtr (*LookupBlock)(void* lookup_block_arg), void* arg, const A64::UserConfig& conf) {
     return RunCodeCallbacks{
-        ArgCallback(LookupBlock, reinterpret_cast<u64>(arg)),
-        ArgCallback(Devirtualize<&A64::UserCallbacks::AddTicks>(cb)),
-        ArgCallback(Devirtualize<&A64::UserCallbacks::GetTicksRemaining>(cb)),
+        std::make_unique<ArgCallback>(LookupBlock, reinterpret_cast<u64>(arg)),
+        std::make_unique<ArgCallback>(Devirtualize<&A64::UserCallbacks::AddTicks>(cb)),
+        std::make_unique<ArgCallback>(Devirtualize<&A64::UserCallbacks::GetTicksRemaining>(cb)),
         conf.enable_cycle_counting,
     };
 }
@@ -78,7 +78,7 @@ public:
         // TODO: Check code alignment
         const CodePtr current_code_ptr = [this] {
             // RSB optimization
-            const u32 new_rsb_ptr = (jit_state.rsb_ptr - 1) & A64JitState::RSB_PTR_MASK;
+            const u32 new_rsb_ptr = (jit_state.rsb_ptr - 1) & A64JitState::RSBPtrMask;
             if (jit_state.GetUniqueHash() == jit_state.rsb_location_descriptors[new_rsb_ptr]) {
                 jit_state.rsb_ptr = new_rsb_ptr;
                 return CodePtr(jit_state.rsb_codeptrs[new_rsb_ptr]);

src/dynarmic/src/dynarmic/backend/x64/a64_jitstate.h

@@ -29,19 +29,18 @@ struct A64JitState {
 
     A64JitState() { ResetRSB(); }
 
-    // Exclusive state stuff
-    static constexpr u64 RESERVATION_GRANULE_MASK = 0xFFFF'FFFF'FFFF'FFF0ull;
-    // Return stack buffer
-    static constexpr size_t RSB_SIZE = 8;  // MUST be a power of 2.
-    static constexpr size_t RSB_PTR_MASK = RSB_SIZE - 1;
-
     std::array<u64, 31> reg{};
     u64 sp = 0;
     u64 pc = 0;
+
     u32 cpsr_nzcv = 0;
-    u32 fpsr_exc = 0;
-    u32 fpsr_qc = 0;
-    u32 fpcr = 0;
+
+    u32 GetPstate() const {
+        return NZCV::FromX64(cpsr_nzcv);
+    }
+    void SetPstate(u32 new_pstate) {
+        cpsr_nzcv = NZCV::ToX64(new_pstate);
+    }
 
     alignas(16) std::array<u64, 64> vec{};  // Extension registers.
 
@@ -51,31 +50,29 @@ struct A64JitState {
     volatile u32 halt_reason = 0;
 
     // Exclusive state
+    static constexpr u64 RESERVATION_GRANULE_MASK = 0xFFFF'FFFF'FFFF'FFF0ull;
     u8 exclusive_state = 0;
+
+    static constexpr size_t RSBSize = 8;  // MUST be a power of 2.
+    static constexpr size_t RSBPtrMask = RSBSize - 1;
     u32 rsb_ptr = 0;
-    std::array<u64, RSB_SIZE> rsb_location_descriptors;
-    std::array<u64, RSB_SIZE> rsb_codeptrs;
-
-    u32 GetPstate() const {
-        return NZCV::FromX64(cpsr_nzcv);
-    }
-
-    void SetPstate(u32 new_pstate) {
-        cpsr_nzcv = NZCV::ToX64(new_pstate);
-    }
-
+    std::array<u64, RSBSize> rsb_location_descriptors;
+    std::array<u64, RSBSize> rsb_codeptrs;
     void ResetRSB() {
         rsb_location_descriptors.fill(0xFFFFFFFFFFFFFFFFull);
         rsb_codeptrs.fill(0);
     }
 
+    u32 fpsr_exc = 0;
+    u32 fpsr_qc = 0;
+    u32 fpcr = 0;
     u32 GetFpcr() const;
     u32 GetFpsr() const;
     void SetFpcr(u32 value);
     void SetFpsr(u32 value);
 
     u64 GetUniqueHash() const noexcept {
-        const u64 fpcr_u64 = u64(fpcr & A64::LocationDescriptor::fpcr_mask) << A64::LocationDescriptor::fpcr_shift;
+        const u64 fpcr_u64 = static_cast<u64>(fpcr & A64::LocationDescriptor::fpcr_mask) << A64::LocationDescriptor::fpcr_shift;
         const u64 pc_u64 = pc & A64::LocationDescriptor::pc_mask;
         return pc_u64 | fpcr_u64;
     }

src/dynarmic/src/dynarmic/backend/x64/block_of_code.cpp

@@ -61,6 +61,73 @@ namespace {
 constexpr size_t CONSTANT_POOL_SIZE = 2 * 1024 * 1024;
 constexpr size_t PRELUDE_COMMIT_SIZE = 16 * 1024 * 1024;
 
+class CustomXbyakAllocator : public Xbyak::Allocator {
+public:
+#ifdef _WIN32
+    uint8_t* alloc(size_t size) override {
+        void* p = VirtualAlloc(nullptr, size, MEM_RESERVE, PAGE_READWRITE);
+        if (p == nullptr) {
+            using Xbyak::Error;
+            XBYAK_THROW(Xbyak::ERR_CANT_ALLOC);
+        }
+        return static_cast<uint8_t*>(p);
+    }
+
+    void free(uint8_t* p) override {
+        VirtualFree(static_cast<void*>(p), 0, MEM_RELEASE);
+    }
+
+    bool useProtect() const override { return false; }
+#else
+    static constexpr size_t DYNARMIC_PAGE_SIZE = 4096;
+
+    // Can't subclass Xbyak::MmapAllocator because it is not a pure interface
+    // and doesn't expose its construtor
+    uint8_t* alloc(size_t size) override {
+        // Waste a page to store the size
+        size += DYNARMIC_PAGE_SIZE;
+
+        int mode = MAP_PRIVATE;
+#if defined(MAP_ANONYMOUS)
+        mode |= MAP_ANONYMOUS;
+#elif defined(MAP_ANON)
+        mode |= MAP_ANON;
+#else
+#   error "not supported"
+#endif
+#ifdef MAP_JIT
+        mode |= MAP_JIT;
+#endif
+        int prot = PROT_READ | PROT_WRITE;
+#ifdef PROT_MPROTECT
+        // https://man.netbsd.org/mprotect.2 specifies that an mprotect() that is LESS
+        // restrictive than the original mapping MUST fail
+        prot |= PROT_MPROTECT(PROT_READ) | PROT_MPROTECT(PROT_WRITE) | PROT_MPROTECT(PROT_EXEC);
+#endif
+        void* p = mmap(nullptr, size, prot, mode, -1, 0);
+        if (p == MAP_FAILED) {
+            using Xbyak::Error;
+            XBYAK_THROW(Xbyak::ERR_CANT_ALLOC);
+        }
+        std::memcpy(p, &size, sizeof(size_t));
+        return static_cast<uint8_t*>(p) + DYNARMIC_PAGE_SIZE;
+    }
+
+    void free(uint8_t* p) override {
+        size_t size;
+        std::memcpy(&size, p - DYNARMIC_PAGE_SIZE, sizeof(size_t));
+        munmap(p - DYNARMIC_PAGE_SIZE, size);
+    }
+
+#    ifdef DYNARMIC_ENABLE_NO_EXECUTE_SUPPORT
+    bool useProtect() const override { return false; }
+#    endif
+#endif
+};
+
+// This is threadsafe as Xbyak::Allocator does not contain any state; it is a pure interface.
+CustomXbyakAllocator s_allocator;
+
 #ifdef DYNARMIC_ENABLE_NO_EXECUTE_SUPPORT
 void ProtectMemory(const void* base, size_t size, bool is_executable) {
 #    ifdef _WIN32
@@ -78,9 +145,11 @@ void ProtectMemory(const void* base, size_t size, bool is_executable) {
 
 HostFeature GetHostFeatures() {
     HostFeature features = {};
+
 #ifdef DYNARMIC_ENABLE_CPU_FEATURE_DETECTION
     using Cpu = Xbyak::util::Cpu;
-    Xbyak::util::Cpu cpu_info{};
+    Xbyak::util::Cpu cpu_info;
+
     if (cpu_info.has(Cpu::tSSSE3))
         features |= HostFeature::SSSE3;
     if (cpu_info.has(Cpu::tSSE41))
@@ -127,6 +196,7 @@ HostFeature GetHostFeatures() {
         features |= HostFeature::GFNI;
     if (cpu_info.has(Cpu::tWAITPKG))
         features |= HostFeature::WAITPKG;
+
     if (cpu_info.has(Cpu::tBMI2)) {
         // BMI2 instructions such as pdep and pext have been very slow up until Zen 3.
         // Check for Zen 3 or newer by its family (0x19).
@@ -144,6 +214,7 @@ HostFeature GetHostFeatures() {
         }
     }
 #endif
+
     return features;
 }
 
@@ -162,27 +233,23 @@ bool IsUnderRosetta() {
 
 }  // anonymous namespace
 
-BlockOfCode::BlockOfCode(RunCodeCallbacks cb, JitStateInfo jsi, size_t total_code_size, std::function<void(BlockOfCode&)> rcp)
-    : Xbyak::CodeGenerator(total_code_size
 #ifdef DYNARMIC_ENABLE_NO_EXECUTE_SUPPORT
-        , Xbyak::DontSetProtectRWE
+static const auto default_cg_mode = Xbyak::DontSetProtectRWE;
 #else
-        , nullptr //Allow RWE
+static const auto default_cg_mode = nullptr; //Allow RWE
 #endif
-        , nullptr)
-    , constant_pool(*this, CONSTANT_POOL_SIZE)
-    , jsi(jsi)
-    , cb(std::move(cb))
-{
+
+BlockOfCode::BlockOfCode(RunCodeCallbacks cb, JitStateInfo jsi, size_t total_code_size, std::function<void(BlockOfCode&)> rcp)
+        : Xbyak::CodeGenerator(total_code_size, default_cg_mode, &s_allocator)
+        , cb(std::move(cb))
+        , jsi(jsi)
+        , constant_pool(*this, CONSTANT_POOL_SIZE)
+        , host_features(GetHostFeatures()) {
     EnableWriting();
     EnsureMemoryCommitted(PRELUDE_COMMIT_SIZE);
     GenRunCode(rcp);
 }
 
-bool BlockOfCode::HasHostFeature(HostFeature feature) const noexcept {
-    return (GetHostFeatures() & feature) == feature;
-}
-
 void BlockOfCode::PreludeComplete() {
     prelude_complete = true;
     code_begin = getCurr();
@@ -274,7 +341,7 @@ void BlockOfCode::GenRunCode(std::function<void(BlockOfCode&)> rcp) {
     mov(rbx, ABI_PARAM2); // save temporarily in non-volatile register
 
     if (cb.enable_cycle_counting) {
-        cb.GetTicksRemaining.EmitCall(*this);
+        cb.GetTicksRemaining->EmitCall(*this);
         mov(qword[rsp + ABI_SHADOW_SPACE + offsetof(StackLayout, cycles_to_run)], ABI_RETURN);
         mov(qword[rsp + ABI_SHADOW_SPACE + offsetof(StackLayout, cycles_remaining)], ABI_RETURN);
     }
@@ -321,7 +388,7 @@ void BlockOfCode::GenRunCode(std::function<void(BlockOfCode&)> rcp) {
         cmp(qword[rsp + ABI_SHADOW_SPACE + offsetof(StackLayout, cycles_remaining)], 0);
         jng(return_to_caller);
     }
-    cb.LookupBlock.EmitCall(*this);
+    cb.LookupBlock->EmitCall(*this);
     jmp(ABI_RETURN);
 
     align();
@@ -334,7 +401,7 @@ void BlockOfCode::GenRunCode(std::function<void(BlockOfCode&)> rcp) {
         jng(return_to_caller_mxcsr_already_exited);
     }
     SwitchMxcsrOnEntry();
-    cb.LookupBlock.EmitCall(*this);
+    cb.LookupBlock->EmitCall(*this);
     jmp(ABI_RETURN);
 
     align();
@@ -348,7 +415,7 @@ void BlockOfCode::GenRunCode(std::function<void(BlockOfCode&)> rcp) {
     L(return_to_caller_mxcsr_already_exited);
 
     if (cb.enable_cycle_counting) {
-        cb.AddTicks.EmitCall(*this, [this](RegList param) {
+        cb.AddTicks->EmitCall(*this, [this](RegList param) {
             mov(param[0], qword[rsp + ABI_SHADOW_SPACE + offsetof(StackLayout, cycles_to_run)]);
             sub(param[0], qword[rsp + ABI_SHADOW_SPACE + offsetof(StackLayout, cycles_remaining)]);
         });
@@ -388,18 +455,18 @@ void BlockOfCode::UpdateTicks() {
         return;
     }
 
-    cb.AddTicks.EmitCall(*this, [this](RegList param) {
+    cb.AddTicks->EmitCall(*this, [this](RegList param) {
         mov(param[0], qword[rsp + ABI_SHADOW_SPACE + offsetof(StackLayout, cycles_to_run)]);
         sub(param[0], qword[rsp + ABI_SHADOW_SPACE + offsetof(StackLayout, cycles_remaining)]);
     });
 
-    cb.GetTicksRemaining.EmitCall(*this);
+    cb.GetTicksRemaining->EmitCall(*this);
     mov(qword[rsp + ABI_SHADOW_SPACE + offsetof(StackLayout, cycles_to_run)], ABI_RETURN);
     mov(qword[rsp + ABI_SHADOW_SPACE + offsetof(StackLayout, cycles_remaining)], ABI_RETURN);
 }
 
 void BlockOfCode::LookupBlock() {
-    cb.LookupBlock.EmitCall(*this);
+    cb.LookupBlock->EmitCall(*this);
 }
 
 void BlockOfCode::LoadRequiredFlagsForCondFromRax(IR::Cond cond) {
@@ -453,7 +520,7 @@ void BlockOfCode::LoadRequiredFlagsForCondFromRax(IR::Cond cond) {
 }
 
 Xbyak::Address BlockOfCode::Const(const Xbyak::AddressFrame& frame, u64 lower, u64 upper) {
-    return constant_pool.GetConstant(*this, frame, lower, upper);
+    return constant_pool.GetConstant(frame, lower, upper);
 }
 
 CodePtr BlockOfCode::GetCodeBegin() const {

src/dynarmic/src/dynarmic/backend/x64/block_of_code.h

@@ -31,9 +31,9 @@ namespace Dynarmic::Backend::X64 {
 using CodePtr = const void*;
 
 struct RunCodeCallbacks {
-    ArgCallback LookupBlock;
-    ArgCallback AddTicks;
-    ArgCallback GetTicksRemaining;
+    std::unique_ptr<Callback> LookupBlock;
+    std::unique_ptr<Callback> AddTicks;
+    std::unique_ptr<Callback> GetTicksRemaining;
     bool enable_cycle_counting;
 };
 
@@ -166,24 +166,27 @@ public:
 
     JitStateInfo GetJitStateInfo() const { return jsi; }
 
-    bool HasHostFeature(HostFeature feature) const noexcept;
+    bool HasHostFeature(HostFeature feature) const {
+        return (host_features & feature) == feature;
+    }
 
 private:
     using RunCodeFuncType = HaltReason (*)(void*, CodePtr);
     static constexpr size_t MXCSR_ALREADY_EXITED = 1 << 0;
     static constexpr size_t FORCE_RETURN = 1 << 1;
 
-    ConstantPool constant_pool;
-    JitStateInfo jsi;
-    std::array<const void*, 4> return_from_run_code;
-    RunCodeFuncType run_code = nullptr;
-    RunCodeFuncType step_code = nullptr;
     RunCodeCallbacks cb;
+    JitStateInfo jsi;
     CodePtr code_begin = nullptr;
 #ifdef _WIN32
     size_t committed_size = 0;
 #endif
+    ConstantPool constant_pool;
+    RunCodeFuncType run_code = nullptr;
+    RunCodeFuncType step_code = nullptr;
+    std::array<const void*, 4> return_from_run_code;
     bool prelude_complete = false;
+    const HostFeature host_features;
 
     void GenRunCode(std::function<void(BlockOfCode&)> rcp);
 };

src/dynarmic/src/dynarmic/backend/x64/constant_pool.cpp

@@ -16,7 +16,8 @@
 namespace Dynarmic::Backend::X64 {
 
 ConstantPool::ConstantPool(BlockOfCode& code, size_t size)
-    : insertion_point(0)
+    : code(code)
+    , insertion_point(0)
 {
     code.EnsureMemoryCommitted(align_size + size);
     code.int3();
@@ -24,17 +25,17 @@ ConstantPool::ConstantPool(BlockOfCode& code, size_t size)
     pool = std::span<ConstantT>(reinterpret_cast<ConstantT*>(code.AllocateFromCodeSpace(size)), size / align_size);
 }
 
-Xbyak::Address ConstantPool::GetConstant(BlockOfCode& code, const Xbyak::AddressFrame& frame, u64 lower, u64 upper) {
+Xbyak::Address ConstantPool::GetConstant(const Xbyak::AddressFrame& frame, u64 lower, u64 upper) {
     const auto constant = ConstantT(lower, upper);
-    auto it = constant_info.find(constant);
-    if (it == constant_info.end()) {
+    auto iter = constant_info.find(constant);
+    if (iter == constant_info.end()) {
         ASSERT(insertion_point < pool.size());
         ConstantT& target_constant = pool[insertion_point];
         target_constant = constant;
-        it = constant_info.insert({constant, &target_constant}).first;
+        iter = constant_info.insert({constant, &target_constant}).first;
         ++insertion_point;
     }
-    return frame[code.rip + it->second];
+    return frame[code.rip + iter->second];
 }
 
 }  // namespace Dynarmic::Backend::X64

src/dynarmic/src/dynarmic/backend/x64/constant_pool.h

@@ -29,7 +29,7 @@ class ConstantPool final {
 public:
     ConstantPool(BlockOfCode& code, size_t size);
 
-    Xbyak::Address GetConstant(BlockOfCode& code, const Xbyak::AddressFrame& frame, u64 lower, u64 upper = 0);
+    Xbyak::Address GetConstant(const Xbyak::AddressFrame& frame, u64 lower, u64 upper = 0);
 
 private:
     static constexpr size_t align_size = 16;  // bytes
@@ -45,6 +45,7 @@ private:
 
     ankerl::unordered_dense::map<ConstantT, void*, ConstantHash> constant_info;
     std::span<ConstantT> pool;
+    BlockOfCode& code;
     std::size_t insertion_point;
 };
 

src/dynarmic/src/dynarmic/backend/x64/host_feature.h

@@ -12,7 +12,7 @@
 
 namespace Dynarmic::Backend::X64 {
 
-enum class HostFeature : u32 {
+enum class HostFeature : u64 {
     SSSE3 = 1ULL << 0,
     SSE41 = 1ULL << 1,
     SSE42 = 1ULL << 2,

src/dynarmic/src/dynarmic/backend/x64/jitstate_info.h

@@ -1,6 +1,3 @@
-// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
-// SPDX-License-Identifier: GPL-3.0-or-later
-
 /* This file is part of the dynarmic project.
  * Copyright (c) 2016 MerryMage
  * SPDX-License-Identifier: 0BSD
@@ -18,7 +15,7 @@ struct JitStateInfo {
             : offsetof_guest_MXCSR(offsetof(JitStateType, guest_MXCSR))
             , offsetof_asimd_MXCSR(offsetof(JitStateType, asimd_MXCSR))
             , offsetof_rsb_ptr(offsetof(JitStateType, rsb_ptr))
-            , rsb_ptr_mask(JitStateType::RSB_PTR_MASK)
+            , rsb_ptr_mask(JitStateType::RSBPtrMask)
             , offsetof_rsb_location_descriptors(offsetof(JitStateType, rsb_location_descriptors))
             , offsetof_rsb_codeptrs(offsetof(JitStateType, rsb_codeptrs))
             , offsetof_cpsr_nzcv(offsetof(JitStateType, cpsr_nzcv))

src/shader_recompiler/backend/spirv/emit_spirv.cpp

@@ -168,7 +168,7 @@ void Traverse(EmitContext& ctx, IR::Program& program) {
             if (!Settings::values.disable_shader_loop_safety_checks) {
                 const Id pointer_type{ctx.TypePointer(spv::StorageClass::Private, ctx.U32[1])};
                 const Id safety_counter{ctx.AddGlobalVariable(
-                    pointer_type, spv::StorageClass::Private, ctx.Const(0x2000u))};
+                    pointer_type, spv::StorageClass::Private, ctx.Const(0x100u))};
                 if (ctx.profile.supported_spirv >= 0x00010400) {
                     ctx.interfaces.push_back(safety_counter);
                 }

src/video_core/buffer_cache/buffer_cache.h

@@ -7,7 +7,10 @@
 #pragma once
 
 #include <algorithm>
+#include <array>
+#include <cstring>
 #include <memory>
+#include <mutex>
 #include <numeric>
 
 #include "common/range_sets.inc"
@@ -215,6 +218,99 @@ bool BufferCache<P>::DMACopy(GPUVAddr src_address, GPUVAddr dest_address, u64 am
     auto& dest_buffer = slot_buffers[buffer_b];
     SynchronizeBuffer(src_buffer, *cpu_src_address, static_cast<u32>(amount));
     SynchronizeBuffer(dest_buffer, *cpu_dest_address, static_cast<u32>(amount));
+
+    // MHR Sunbreak PoC: replace the poisoned A/B record with its healthy peer.
+    constexpr DAddr mhr_slot_a = 0xb7e01000ULL;
+    constexpr DAddr mhr_slot_b = 0xb7a01000ULL;
+    constexpr u64 mhr_slot_size = 0x129000ULL;
+    constexpr size_t mhr_record_size = 0x70;
+    using MhrRecord = std::array<u8, mhr_record_size>;
+    struct MhrCacheEntry {
+        DAddr destination{};
+        MhrRecord a{};
+        MhrRecord b{};
+        bool has_a{};
+        bool has_b{};
+    };
+    static std::mutex mhr_mutex;
+    static std::array<MhrCacheEntry, 512> mhr_cache{};
+    static size_t mhr_cache_next{};
+
+    const auto in_mhr_slot = [&](DAddr address, DAddr slot) {
+        return amount == mhr_record_size && address >= slot &&
+               address <= slot + mhr_slot_size - mhr_record_size;
+    };
+    const bool mhr_source_a = in_mhr_slot(*cpu_src_address, mhr_slot_a);
+    const bool mhr_source_b = in_mhr_slot(*cpu_src_address, mhr_slot_b);
+    bool mhr_override{};
+    MhrRecord mhr_healthy_record{};
+    if (mhr_source_a || mhr_source_b) {
+        const auto score_record = [](const MhrRecord& record) {
+            u32 score{};
+            for (size_t offset = 0; offset < record.size(); offset += sizeof(u32)) {
+                u32 word{};
+                std::memcpy(&word, record.data() + offset, sizeof(word));
+                if (word == 0x7f7f7f7fU) {
+                    score += 64;
+                } else if (word == 0x7fffffffU || word == 0xffffffffU || word == 0x80808080U ||
+                           word == 0x81818181U) {
+                    score += 4;
+                }
+            }
+            for (size_t offset = 0; offset + sizeof(u64) <= record.size(); offset += sizeof(u64)) {
+                u32 lo{};
+                u32 hi{};
+                std::memcpy(&lo, record.data() + offset, sizeof(lo));
+                std::memcpy(&hi, record.data() + offset + sizeof(u32), sizeof(hi));
+                if (lo == 0 && hi == 0x7f7f7f7fU) {
+                    score += 128;
+                }
+            }
+            u32 first{};
+            u32 second{};
+            std::memcpy(&first, record.data() + 0x60, sizeof(first));
+            std::memcpy(&second, record.data() + 0x64, sizeof(second));
+            if ((first & 0x40000U) != 0 && (second & 0x40000U) == 0 &&
+                ((first ^ second) & 0xffffU) == 0) {
+                score += 16;
+            } else if ((first & 0x40000U) == 0 && (second & 0x40000U) != 0 &&
+                       ((first ^ second) & 0xffffU) == 0 && score >= 4) {
+                score -= 4;
+            }
+            return score;
+        };
+
+        MhrRecord source_record{};
+        device_memory.ReadBlockUnsafe(*cpu_src_address, source_record.data(), source_record.size());
+        std::scoped_lock lock{mhr_mutex};
+        auto entry = std::ranges::find_if(mhr_cache, [&](const MhrCacheEntry& current) {
+            return (current.has_a || current.has_b) && current.destination == *cpu_dest_address;
+        });
+        if (entry == mhr_cache.end()) {
+            entry = mhr_cache.begin() + mhr_cache_next++ % mhr_cache.size();
+            *entry = {};
+            entry->destination = *cpu_dest_address;
+        }
+        if (mhr_source_a) {
+            entry->a = source_record;
+            entry->has_a = true;
+        } else {
+            entry->b = source_record;
+            entry->has_b = true;
+        }
+        if (entry->has_a && entry->has_b) {
+            const u32 score_a{score_record(entry->a)};
+            const u32 score_b{score_record(entry->b)};
+            if (score_a != score_b) {
+                const bool healthy_is_a{score_a < score_b};
+                if (mhr_source_a != healthy_is_a) {
+                    mhr_healthy_record = healthy_is_a ? entry->a : entry->b;
+                    mhr_override = true;
+                }
+            }
+        }
+    }
+
     std::array copies{BufferCopy{
         .src_offset = src_buffer.Offset(*cpu_src_address),
         .dst_offset = dest_buffer.Offset(*cpu_dest_address),
@@ -244,6 +340,14 @@ bool BufferCache<P>::DMACopy(GPUVAddr src_address, GPUVAddr dest_address, u64 am
         memory_tracker.MarkRegionAsGpuModified(*cpu_dest_address, amount);
     }
 
+    if (mhr_override) {
+        device_memory.WriteBlockUnsafe(*cpu_dest_address, mhr_healthy_record.data(),
+                                       mhr_healthy_record.size());
+        InlineMemoryImplementation(*cpu_dest_address, mhr_healthy_record.size(),
+                                   std::span<const u8>{mhr_healthy_record});
+        return true;
+    }
+
     Tegra::Memory::DeviceGuestMemoryScoped<u8, Tegra::Memory::GuestMemoryFlags::UnsafeReadWrite>
         tmp(device_memory, *cpu_src_address, amount, &tmp_buffer);
     tmp.SetAddressAndSize(*cpu_dest_address, amount);