Android 192

service: hid: Create abstracted pad structure

.ci/scripts/format/script.sh

@@ -3,38 +3,32 @@
 # SPDX-FileCopyrightText: 2019 yuzu Emulator Project
 # SPDX-License-Identifier: GPL-2.0-or-later
 
-if grep -nrI '\s$' src *.yml *.txt *.md Doxyfile .gitignore .gitmodules .ci* dist/*.desktop \
-                 dist/*.svg dist/*.xml; then
+shopt -s nullglob globstar
+
+if git grep -nrI '\s$' src **/*.yml **/*.txt **/*.md Doxyfile .gitignore .gitmodules .ci* dist/*.desktop dist/*.svg dist/*.xml; then
     echo Trailing whitespace found, aborting
     exit 1
 fi
 
 # Default clang-format points to default 3.5 version one
-CLANG_FORMAT=${CLANG_FORMAT:-clang-format-15}
-$CLANG_FORMAT --version
-
-if [ "$TRAVIS_EVENT_TYPE" = "pull_request" ]; then
-    # Get list of every file modified in this pull request
-    files_to_lint="$(git diff --name-only --diff-filter=ACMRTUXB $TRAVIS_COMMIT_RANGE | grep '^src/[^.]*[.]\(cpp\|h\)$' || true)"
-else
-    # Check everything for branch pushes
-    files_to_lint="$(find src/ -name '*.cpp' -or -name '*.h')"
-fi
+CLANG_FORMAT="${CLANG_FORMAT:-clang-format-15}"
+"$CLANG_FORMAT" --version
 
 # Turn off tracing for this because it's too verbose
 set +x
 
-for f in $files_to_lint; do
-    d=$(diff -u "$f" <($CLANG_FORMAT "$f") || true)
-    if ! [ -z "$d" ]; then
-        echo "!!! $f not compliant to coding style, here is the fix:"
-        echo "$d"
-        fail=1
-    fi
+# Check everything for branch pushes
+FILES_TO_LINT="$(find src/ -name '*.cpp' -or -name '*.h')"
+
+for f in $FILES_TO_LINT; do
+    echo "$f"
+    "$CLANG_FORMAT" -i "$f"
 done
 
-set -x
+DIFF=$(git -c core.fileMode=false diff)
 
-if [ "$fail" = 1 ]; then
+if [ ! -z "$DIFF" ]; then
+    echo "!!! Not compliant to coding style, here is the fix:"
+    echo "$DIFF"
     exit 1
 fi

.github/workflows/android-merge.js

@@ -10,7 +10,7 @@ const CHANGE_LABEL = 'android-merge';
 // how far back in time should we consider the changes are "recent"? (default: 24 hours)
 const DETECTION_TIME_FRAME = (parseInt(process.env.DETECTION_TIME_FRAME)) || (24 * 3600 * 1000);
 
-async function checkBaseChanges(github, context) {
+async function checkBaseChanges(github) {
     // query the commit date of the latest commit on this branch
     const query = `query($owner:String!, $name:String!, $ref:String!) {
         repository(name:$name, owner:$owner) {
@@ -22,8 +22,8 @@ async function checkBaseChanges(github, context) {
         }
     }`;
     const variables = {
-        owner: context.repo.owner,
-        name: context.repo.repo,
+        owner: 'yuzu-emu',
+        name: 'yuzu',
         ref: 'refs/heads/master',
     };
     const result = await github.graphql(query, variables);
@@ -38,8 +38,8 @@ async function checkBaseChanges(github, context) {
     return false;
 }
 
-async function checkAndroidChanges(github, context) {
-    if (checkBaseChanges(github, context)) return true;
+async function checkAndroidChanges(github) {
+    if (checkBaseChanges(github)) return true;
     const query = `query($owner:String!, $name:String!, $label:String!) {
         repository(name:$name, owner:$owner) {
             pullRequests(labels: [$label], states: OPEN, first: 100) {
@@ -48,8 +48,8 @@ async function checkAndroidChanges(github, context) {
         }
     }`;
     const variables = {
-        owner: context.repo.owner,
-        name: context.repo.repo,
+        owner: 'yuzu-emu',
+        name: 'yuzu',
         label: CHANGE_LABEL,
     };
     const result = await github.graphql(query, variables);
@@ -90,8 +90,8 @@ async function tagAndPush(github, owner, repo, execa, commit=false) {
     console.log(`New tag: ${newTag}`);
     if (commit) {
         let channelName = channel[0].toUpperCase() + channel.slice(1);
-        console.info(`Committing pending commit as ${channelName} #${tagNumber + 1}`);
-        await execa("git", ['commit', '-m', `${channelName} #${tagNumber + 1}`]);
+        console.info(`Committing pending commit as ${channelName} ${tagNumber + 1}`);
+        await execa("git", ['commit', '-m', `${channelName} ${tagNumber + 1}`]);
     }
     console.info('Pushing tags to GitHub ...');
     await execa("git", ['tag', newTag]);
@@ -157,7 +157,7 @@ async function mergePullRequests(pulls, execa) {
             process1.stdout.pipe(process.stdout);
             await process1;
 
-            const process2 = execa("git", ["commit", "-m", `Merge PR ${pr}`]);
+            const process2 = execa("git", ["commit", "-m", `Merge yuzu-emu#${pr}`]);
             process2.stdout.pipe(process.stdout);
             await process2;
 
@@ -182,7 +182,30 @@ async function mergePullRequests(pulls, execa) {
     return mergeResults;
 }
 
+async function resetBranch(execa) {
+    console.log("::group::Reset master branch");
+    let hasFailed = false;
+    try {
+        await execa("git", ["remote", "add", "source", "https://github.com/yuzu-emu/yuzu.git"]);
+        await execa("git", ["fetch", "source"]);
+        const process1 = await execa("git", ["rev-parse", "source/master"]);
+        const headCommit = process1.stdout;
+
+        await execa("git", ["reset", "--hard", headCommit]);
+    } catch (err) {
+        console.log(`::error title=Failed to reset master branch`);
+        hasFailed = true;
+    }
+    console.log("::endgroup::");
+    if (hasFailed) {
+        throw 'Failed to reset the master branch. Aborting!';
+    }
+}
+
 async function mergebot(github, context, execa) {
+    // Reset our local copy of master to what appears on yuzu-emu/yuzu - master
+    await resetBranch(execa);
+
     const query = `query ($owner:String!, $name:String!, $label:String!) {
         repository(name:$name, owner:$owner) {
             pullRequests(labels: [$label], states: OPEN, first: 100) {
@@ -193,8 +216,8 @@ async function mergebot(github, context, execa) {
         }
     }`;
     const variables = {
-        owner: context.repo.owner,
-        name: context.repo.repo,
+        owner: 'yuzu-emu',
+        name: 'yuzu',
         label: CHANGE_LABEL,
     };
     const result = await github.graphql(query, variables);
@@ -209,7 +232,7 @@ async function mergebot(github, context, execa) {
     await fetchPullRequests(pulls, "https://github.com/yuzu-emu/yuzu", execa);
     const mergeResults = await mergePullRequests(pulls, execa);
     await generateReadme(pulls, context, mergeResults, execa);
-    await tagAndPush(github, context.repo.owner, `${context.repo.repo}-android`, execa, true);
+    await tagAndPush(github, 'yuzu-emu', `yuzu-android`, execa, true);
 }
 
 module.exports.mergebot = mergebot;

.github/workflows/android-publish.yml

@@ -16,7 +16,7 @@ on:
 jobs:
   android:
     runs-on: ubuntu-latest
-    if: ${{ github.event.inputs.android != 'false' && github.repository == 'yuzu-emu/yuzu' }}
+    if: ${{ github.event.inputs.android != 'false' && github.repository == 'yuzu-emu/yuzu-android' }}
     steps:
       # this checkout is required to make sure the GitHub Actions scripts are available
       - uses: actions/checkout@v3
@@ -33,7 +33,7 @@ jobs:
           script: |
             if (context.payload.inputs && context.payload.inputs.android === 'true') return true;
             const checkAndroidChanges = require('./.github/workflows/android-merge.js').checkAndroidChanges;
-            return checkAndroidChanges(github, context);
+            return checkAndroidChanges(github);
       - run: npm install execa@5
         if: ${{ steps.check-changes.outputs.result == 'true' }}
       - uses: actions/checkout@v3

README.md

@@ -1,3 +1,17 @@
+| Pull Request | Commit | Title | Author | Merged? |
+|----|----|----|----|----|
+| [12579](https://github.com/yuzu-emu/yuzu-android//pull/12579) | [`66ae60a9e`](https://github.com/yuzu-emu/yuzu-android//pull/12579/files) | Core: Implement Device Mapping & GPU SMMU | [FernandoS27](https://github.com/FernandoS27/) | Yes |
+| [12610](https://github.com/yuzu-emu/yuzu-android//pull/12610) | [`200b371d1`](https://github.com/yuzu-emu/yuzu-android//pull/12610/files) | server_manager: respond to session close correctly | [liamwhite](https://github.com/liamwhite/) | Yes |
+| [12611](https://github.com/yuzu-emu/yuzu-android//pull/12611) | [`2f0b57ca1`](https://github.com/yuzu-emu/yuzu-android//pull/12611/files) | kernel: fix resource management issues | [liamwhite](https://github.com/liamwhite/) | Yes |
+| [12612](https://github.com/yuzu-emu/yuzu-android//pull/12612) | [`76880b84f`](https://github.com/yuzu-emu/yuzu-android//pull/12612/files) | fsp-srv: use program registry for SetCurrentProcess | [liamwhite](https://github.com/liamwhite/) | Yes |
+| [12652](https://github.com/yuzu-emu/yuzu-android//pull/12652) | [`2a0d707ce`](https://github.com/yuzu-emu/yuzu-android//pull/12652/files) | shader_recompiler: emulate 8-bit and 16-bit storage writes with cas loop | [liamwhite](https://github.com/liamwhite/) | Yes |
+| [12659](https://github.com/yuzu-emu/yuzu-android//pull/12659) | [`d94097478`](https://github.com/yuzu-emu/yuzu-android//pull/12659/files) | audio: fetch process object from handle table | [liamwhite](https://github.com/liamwhite/) | Yes |
+
+
+End of merge log. You can find the original README.md below the break.
+
+-----
+
 <!--
 SPDX-FileCopyrightText: 2018 yuzu Emulator Project
 SPDX-License-Identifier: GPL-2.0-or-later

src/CMakeLists.txt

@@ -185,6 +185,7 @@ add_subdirectory(common)
 add_subdirectory(core)
 add_subdirectory(audio_core)
 add_subdirectory(video_core)
+add_subdirectory(hid_core)
 add_subdirectory(network)
 add_subdirectory(input_common)
 add_subdirectory(frontend_common)

src/android/app/src/main/AndroidManifest.xml

@@ -31,6 +31,9 @@ SPDX-License-Identifier: GPL-3.0-or-later
         android:dataExtractionRules="@xml/data_extraction_rules_api_31"
         android:enableOnBackInvokedCallback="true">
 
+        <meta-data android:name="android.game_mode_config"
+            android:resource="@xml/game_mode_config" />
+
         <activity
             android:name="org.yuzu.yuzu_emu.ui.main.MainActivity"
             android:exported="true"

src/android/app/src/main/java/org/yuzu/yuzu_emu/NativeLibrary.kt

@@ -547,6 +547,15 @@ object NativeLibrary {
      */
     external fun getSavePath(programId: String): String
 
+    /**
+     * Gets the root save directory for the default profile as either
+     * /user/save/account/<user id raw string> or /user/save/000...000/<user id>
+     *
+     * @param future If true, returns the /user/save/account/... directory
+     * @return Save data path that may not exist yet
+     */
+    external fun getDefaultProfileSaveDataRoot(future: Boolean): String
+
     /**
      * Adds a file to the manual filesystem provider in our EmulationSession instance
      * @param path Path to the file we're adding. Can be a string representation of a [Uri] or

src/android/app/src/main/java/org/yuzu/yuzu_emu/adapters/AbstractDiffAdapter.kt

@@ -0,0 +1,33 @@
+// SPDX-FileCopyrightText: 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+package org.yuzu.yuzu_emu.adapters
+
+import android.annotation.SuppressLint
+import androidx.recyclerview.widget.AsyncDifferConfig
+import androidx.recyclerview.widget.DiffUtil
+import androidx.recyclerview.widget.ListAdapter
+import org.yuzu.yuzu_emu.viewholder.AbstractViewHolder
+import androidx.recyclerview.widget.RecyclerView
+
+/**
+ * Generic adapter that implements an [AsyncDifferConfig] and covers some of the basic boilerplate
+ * code used in every [RecyclerView].
+ * Type assigned to [Model] must inherit from [Object] in order to be compared properly.
+ */
+abstract class AbstractDiffAdapter<Model : Any, Holder : AbstractViewHolder<Model>> :
+    ListAdapter<Model, Holder>(AsyncDifferConfig.Builder(DiffCallback<Model>()).build()) {
+    override fun onBindViewHolder(holder: Holder, position: Int) =
+        holder.bind(currentList[position])
+
+    private class DiffCallback<Model> : DiffUtil.ItemCallback<Model>() {
+        override fun areItemsTheSame(oldItem: Model & Any, newItem: Model & Any): Boolean {
+            return oldItem === newItem
+        }
+
+        @SuppressLint("DiffUtilEquals")
+        override fun areContentsTheSame(oldItem: Model & Any, newItem: Model & Any): Boolean {
+            return oldItem == newItem
+        }
+    }
+}

src/android/app/src/main/java/org/yuzu/yuzu_emu/adapters/AbstractListAdapter.kt

@@ -0,0 +1,98 @@
+// SPDX-FileCopyrightText: 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+package org.yuzu.yuzu_emu.adapters
+
+import android.annotation.SuppressLint
+import androidx.recyclerview.widget.RecyclerView
+import org.yuzu.yuzu_emu.viewholder.AbstractViewHolder
+
+/**
+ * Generic list class meant to take care of basic lists
+ * @param currentList The list to show initially
+ */
+abstract class AbstractListAdapter<Model : Any, Holder : AbstractViewHolder<Model>>(
+    open var currentList: List<Model>
+) : RecyclerView.Adapter<Holder>() {
+    override fun onBindViewHolder(holder: Holder, position: Int) =
+        holder.bind(currentList[position])
+
+    override fun getItemCount(): Int = currentList.size
+
+    /**
+     * Adds an item to [currentList] and notifies the underlying adapter of the change. If no parameter
+     * is passed in for position, [item] is added to the end of the list. Invokes [callback] last.
+     * @param item The item to add to the list
+     * @param position Index where [item] will be added
+     * @param callback Lambda that's called at the end of the list changes and has the added list
+     * position passed in as a parameter
+     */
+    open fun addItem(item: Model, position: Int = -1, callback: ((position: Int) -> Unit)? = null) {
+        val newList = currentList.toMutableList()
+        val positionToUpdate: Int
+        if (position == -1) {
+            newList.add(item)
+            currentList = newList
+            positionToUpdate = currentList.size - 1
+        } else {
+            newList.add(position, item)
+            currentList = newList
+            positionToUpdate = position
+        }
+        onItemAdded(positionToUpdate, callback)
+    }
+
+    protected fun onItemAdded(position: Int, callback: ((Int) -> Unit)? = null) {
+        notifyItemInserted(position)
+        callback?.invoke(position)
+    }
+
+    /**
+     * Replaces the [item] at [position] in the [currentList] and notifies the underlying adapter
+     * of the change. Invokes [callback] last.
+     * @param item New list item
+     * @param position Index where [item] will replace the existing list item
+     * @param callback Lambda that's called at the end of the list changes and has the changed list
+     * position passed in as a parameter
+     */
+    fun changeItem(item: Model, position: Int, callback: ((position: Int) -> Unit)? = null) {
+        val newList = currentList.toMutableList()
+        newList[position] = item
+        currentList = newList
+        onItemChanged(position, callback)
+    }
+
+    protected fun onItemChanged(position: Int, callback: ((Int) -> Unit)? = null) {
+        notifyItemChanged(position)
+        callback?.invoke(position)
+    }
+
+    /**
+     * Removes the list item at [position] in [currentList] and notifies the underlying adapter
+     * of the change. Invokes [callback] last.
+     * @param position Index where the list item will be removed
+     * @param callback Lambda that's called at the end of the list changes and has the removed list
+     * position passed in as a parameter
+     */
+    fun removeItem(position: Int, callback: ((position: Int) -> Unit)? = null) {
+        val newList = currentList.toMutableList()
+        newList.removeAt(position)
+        currentList = newList
+        onItemRemoved(position, callback)
+    }
+
+    protected fun onItemRemoved(position: Int, callback: ((Int) -> Unit)? = null) {
+        notifyItemRemoved(position)
+        callback?.invoke(position)
+    }
+
+    /**
+     * Replaces [currentList] with [newList] and notifies the underlying adapter of the change.
+     * @param newList The new list to replace [currentList]
+     */
+    @SuppressLint("NotifyDataSetChanged")
+    open fun replaceList(newList: List<Model>) {
+        currentList = newList
+        notifyDataSetChanged()
+    }
+}

src/android/app/src/main/java/org/yuzu/yuzu_emu/adapters/AbstractSingleSelectionList.kt

@@ -0,0 +1,105 @@
+// SPDX-FileCopyrightText: 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+package org.yuzu.yuzu_emu.adapters
+
+import org.yuzu.yuzu_emu.model.SelectableItem
+import org.yuzu.yuzu_emu.viewholder.AbstractViewHolder
+
+/**
+ * Generic list class meant to take care of single selection UI updates
+ * @param currentList The list to show initially
+ * @param defaultSelection The default selection to use if no list items are selected by
+ * [SelectableItem.selected] or if the currently selected item is removed from the list
+ */
+abstract class AbstractSingleSelectionList<
+    Model : SelectableItem,
+    Holder : AbstractViewHolder<Model>
+    >(
+    final override var currentList: List<Model>,
+    private val defaultSelection: DefaultSelection = DefaultSelection.Start
+) : AbstractListAdapter<Model, Holder>(currentList) {
+    var selectedItem = getDefaultSelection()
+
+    init {
+        findSelectedItem()
+    }
+
+    /**
+     * Changes the selection state of the [SelectableItem] that was selected and the previously selected
+     * item and notifies the underlying adapter of the change for those items. Invokes [callback] last.
+     * Does nothing if [position] is the same as the currently selected item.
+     * @param position Index of the item that was selected
+     * @param callback Lambda that's called at the end of the list changes and has the selected list
+     * position passed in as a parameter
+     */
+    fun selectItem(position: Int, callback: ((position: Int) -> Unit)? = null) {
+        if (position == selectedItem) {
+            return
+        }
+
+        val previouslySelectedItem = selectedItem
+        selectedItem = position
+        if (currentList.indices.contains(selectedItem)) {
+            currentList[selectedItem].onSelectionStateChanged(true)
+        }
+        if (currentList.indices.contains(previouslySelectedItem)) {
+            currentList[previouslySelectedItem].onSelectionStateChanged(false)
+        }
+        onItemChanged(previouslySelectedItem)
+        onItemChanged(selectedItem)
+        callback?.invoke(position)
+    }
+
+    /**
+     * Removes a given item from the list and notifies the underlying adapter of the change. If the
+     * currently selected item was the item that was removed, the item at the position provided
+     * by [defaultSelection] will be made the new selection. Invokes [callback] last.
+     * @param position Index of the item that was removed
+     * @param callback Lambda that's called at the end of the list changes and has the removed and
+     * selected list positions passed in as parameters
+     */
+    fun removeSelectableItem(
+        position: Int,
+        callback: ((removedPosition: Int, selectedPosition: Int) -> Unit)?
+    ) {
+        removeItem(position)
+        if (position == selectedItem) {
+            selectedItem = getDefaultSelection()
+            currentList[selectedItem].onSelectionStateChanged(true)
+            onItemChanged(selectedItem)
+        } else if (position < selectedItem) {
+            selectedItem--
+        }
+        callback?.invoke(position, selectedItem)
+    }
+
+    override fun addItem(item: Model, position: Int, callback: ((Int) -> Unit)?) {
+        super.addItem(item, position, callback)
+        if (position <= selectedItem && position != -1) {
+            selectedItem++
+        }
+    }
+
+    override fun replaceList(newList: List<Model>) {
+        super.replaceList(newList)
+        findSelectedItem()
+    }
+
+    private fun findSelectedItem() {
+        for (i in currentList.indices) {
+            if (currentList[i].selected) {
+                selectedItem = i
+                break
+            }
+        }
+    }
+
+    private fun getDefaultSelection(): Int =
+        when (defaultSelection) {
+            DefaultSelection.Start -> currentList.indices.first
+            DefaultSelection.End -> currentList.indices.last
+        }
+
+    enum class DefaultSelection { Start, End }
+}

src/android/app/src/main/java/org/yuzu/yuzu_emu/adapters/AddonAdapter.kt

@@ -5,48 +5,28 @@ package org.yuzu.yuzu_emu.adapters
 
 import android.view.LayoutInflater
 import android.view.ViewGroup
-import androidx.recyclerview.widget.AsyncDifferConfig
-import androidx.recyclerview.widget.DiffUtil
-import androidx.recyclerview.widget.ListAdapter
-import androidx.recyclerview.widget.RecyclerView
 import org.yuzu.yuzu_emu.databinding.ListItemAddonBinding
 import org.yuzu.yuzu_emu.model.Addon
+import org.yuzu.yuzu_emu.viewholder.AbstractViewHolder
 
-class AddonAdapter : ListAdapter<Addon, AddonAdapter.AddonViewHolder>(
-    AsyncDifferConfig.Builder(DiffCallback()).build()
-) {
+class AddonAdapter : AbstractDiffAdapter<Addon, AddonAdapter.AddonViewHolder>() {
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): AddonViewHolder {
         ListItemAddonBinding.inflate(LayoutInflater.from(parent.context), parent, false)
             .also { return AddonViewHolder(it) }
     }
 
-    override fun getItemCount(): Int = currentList.size
-
-    override fun onBindViewHolder(holder: AddonViewHolder, position: Int) =
-        holder.bind(currentList[position])
-
     inner class AddonViewHolder(val binding: ListItemAddonBinding) :
-        RecyclerView.ViewHolder(binding.root) {
-        fun bind(addon: Addon) {
+        AbstractViewHolder<Addon>(binding) {
+        override fun bind(model: Addon) {
             binding.root.setOnClickListener {
                 binding.addonSwitch.isChecked = !binding.addonSwitch.isChecked
             }
-            binding.title.text = addon.title
-            binding.version.text = addon.version
+            binding.title.text = model.title
+            binding.version.text = model.version
             binding.addonSwitch.setOnCheckedChangeListener { _, checked ->
-                addon.enabled = checked
+                model.enabled = checked
             }
-            binding.addonSwitch.isChecked = addon.enabled
-        }
-    }
-
-    private class DiffCallback : DiffUtil.ItemCallback<Addon>() {
-        override fun areItemsTheSame(oldItem: Addon, newItem: Addon): Boolean {
-            return oldItem == newItem
-        }
-
-        override fun areContentsTheSame(oldItem: Addon, newItem: Addon): Boolean {
-            return oldItem == newItem
+            binding.addonSwitch.isChecked = model.enabled
         }
     }
 }

src/android/app/src/main/java/org/yuzu/yuzu_emu/adapters/AppletAdapter.kt

@@ -4,13 +4,11 @@
 package org.yuzu.yuzu_emu.adapters
 
 import android.view.LayoutInflater
-import android.view.View
 import android.view.ViewGroup
 import android.widget.Toast
 import androidx.core.content.res.ResourcesCompat
 import androidx.fragment.app.FragmentActivity
 import androidx.navigation.findNavController
-import androidx.recyclerview.widget.RecyclerView
 import org.yuzu.yuzu_emu.HomeNavigationDirections
 import org.yuzu.yuzu_emu.NativeLibrary
 import org.yuzu.yuzu_emu.R
@@ -19,72 +17,58 @@ import org.yuzu.yuzu_emu.databinding.CardSimpleOutlinedBinding
 import org.yuzu.yuzu_emu.model.Applet
 import org.yuzu.yuzu_emu.model.AppletInfo
 import org.yuzu.yuzu_emu.model.Game
+import org.yuzu.yuzu_emu.viewholder.AbstractViewHolder
 
-class AppletAdapter(val activity: FragmentActivity, var applets: List<Applet>) :
-    RecyclerView.Adapter<AppletAdapter.AppletViewHolder>(),
-    View.OnClickListener {
-
+class AppletAdapter(val activity: FragmentActivity, applets: List<Applet>) :
+    AbstractListAdapter<Applet, AppletAdapter.AppletViewHolder>(applets) {
     override fun onCreateViewHolder(
         parent: ViewGroup,
         viewType: Int
     ): AppletAdapter.AppletViewHolder {
         CardSimpleOutlinedBinding.inflate(LayoutInflater.from(parent.context), parent, false)
-            .apply { root.setOnClickListener(this@AppletAdapter) }
             .also { return AppletViewHolder(it) }
     }
 
-    override fun onBindViewHolder(holder: AppletViewHolder, position: Int) =
-        holder.bind(applets[position])
-
-    override fun getItemCount(): Int = applets.size
-
-    override fun onClick(view: View) {
-        val applet = (view.tag as AppletViewHolder).applet
-        val appletPath = NativeLibrary.getAppletLaunchPath(applet.appletInfo.entryId)
-        if (appletPath.isEmpty()) {
-            Toast.makeText(
-                YuzuApplication.appContext,
-                R.string.applets_error_applet,
-                Toast.LENGTH_SHORT
-            ).show()
-            return
-        }
-
-        if (applet.appletInfo == AppletInfo.Cabinet) {
-            view.findNavController()
-                .navigate(R.id.action_appletLauncherFragment_to_cabinetLauncherDialogFragment)
-            return
-        }
-
-        NativeLibrary.setCurrentAppletId(applet.appletInfo.appletId)
-        val appletGame = Game(
-            title = YuzuApplication.appContext.getString(applet.titleId),
-            path = appletPath
-        )
-        val action = HomeNavigationDirections.actionGlobalEmulationActivity(appletGame)
-        view.findNavController().navigate(action)
-    }
-
     inner class AppletViewHolder(val binding: CardSimpleOutlinedBinding) :
-        RecyclerView.ViewHolder(binding.root) {
-        lateinit var applet: Applet
-
-        init {
-            itemView.tag = this
-        }
-
-        fun bind(applet: Applet) {
-            this.applet = applet
-
-            binding.title.setText(applet.titleId)
-            binding.description.setText(applet.descriptionId)
+        AbstractViewHolder<Applet>(binding) {
+        override fun bind(model: Applet) {
+            binding.title.setText(model.titleId)
+            binding.description.setText(model.descriptionId)
             binding.icon.setImageDrawable(
                 ResourcesCompat.getDrawable(
                     binding.icon.context.resources,
-                    applet.iconId,
+                    model.iconId,
                     binding.icon.context.theme
                 )
             )
+
+            binding.root.setOnClickListener { onClick(model) }
+        }
+
+        fun onClick(applet: Applet) {
+            val appletPath = NativeLibrary.getAppletLaunchPath(applet.appletInfo.entryId)
+            if (appletPath.isEmpty()) {
+                Toast.makeText(
+                    binding.root.context,
+                    R.string.applets_error_applet,
+                    Toast.LENGTH_SHORT
+                ).show()
+                return
+            }
+
+            if (applet.appletInfo == AppletInfo.Cabinet) {
+                binding.root.findNavController()
+                    .navigate(R.id.action_appletLauncherFragment_to_cabinetLauncherDialogFragment)
+                return
+            }
+
+            NativeLibrary.setCurrentAppletId(applet.appletInfo.appletId)
+            val appletGame = Game(
+                title = YuzuApplication.appContext.getString(applet.titleId),
+                path = appletPath
+            )
+            val action = HomeNavigationDirections.actionGlobalEmulationActivity(appletGame)
+            binding.root.findNavController().navigate(action)
         }
     }
 }

src/android/app/src/main/java/org/yuzu/yuzu_emu/adapters/CabinetLauncherDialogAdapter.kt

@@ -4,12 +4,10 @@
 package org.yuzu.yuzu_emu.adapters
 
 import android.view.LayoutInflater
-import android.view.View
 import android.view.ViewGroup
 import androidx.core.content.res.ResourcesCompat
 import androidx.fragment.app.Fragment
 import androidx.navigation.fragment.findNavController
-import androidx.recyclerview.widget.RecyclerView
 import org.yuzu.yuzu_emu.HomeNavigationDirections
 import org.yuzu.yuzu_emu.NativeLibrary
 import org.yuzu.yuzu_emu.R
@@ -19,54 +17,43 @@ import org.yuzu.yuzu_emu.model.CabinetMode
 import org.yuzu.yuzu_emu.adapters.CabinetLauncherDialogAdapter.CabinetModeViewHolder
 import org.yuzu.yuzu_emu.model.AppletInfo
 import org.yuzu.yuzu_emu.model.Game
+import org.yuzu.yuzu_emu.viewholder.AbstractViewHolder
 
 class CabinetLauncherDialogAdapter(val fragment: Fragment) :
-    RecyclerView.Adapter<CabinetModeViewHolder>(),
-    View.OnClickListener {
-    private val cabinetModes = CabinetMode.values().copyOfRange(1, CabinetMode.values().size)
+    AbstractListAdapter<CabinetMode, CabinetModeViewHolder>(
+        CabinetMode.values().copyOfRange(1, CabinetMode.entries.size).toList()
+    ) {
 
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): CabinetModeViewHolder {
         DialogListItemBinding.inflate(LayoutInflater.from(parent.context), parent, false)
-            .apply { root.setOnClickListener(this@CabinetLauncherDialogAdapter) }
             .also { return CabinetModeViewHolder(it) }
     }
 
-    override fun getItemCount(): Int = cabinetModes.size
-
-    override fun onBindViewHolder(holder: CabinetModeViewHolder, position: Int) =
-        holder.bind(cabinetModes[position])
-
-    override fun onClick(view: View) {
-        val mode = (view.tag as CabinetModeViewHolder).cabinetMode
-        val appletPath = NativeLibrary.getAppletLaunchPath(AppletInfo.Cabinet.entryId)
-        NativeLibrary.setCurrentAppletId(AppletInfo.Cabinet.appletId)
-        NativeLibrary.setCabinetMode(mode.id)
-        val appletGame = Game(
-            title = YuzuApplication.appContext.getString(R.string.cabinet_applet),
-            path = appletPath
-        )
-        val action = HomeNavigationDirections.actionGlobalEmulationActivity(appletGame)
-        fragment.findNavController().navigate(action)
-    }
-
     inner class CabinetModeViewHolder(val binding: DialogListItemBinding) :
-        RecyclerView.ViewHolder(binding.root) {
-        lateinit var cabinetMode: CabinetMode
-
-        init {
-            itemView.tag = this
-        }
-
-        fun bind(cabinetMode: CabinetMode) {
-            this.cabinetMode = cabinetMode
+        AbstractViewHolder<CabinetMode>(binding) {
+        override fun bind(model: CabinetMode) {
             binding.icon.setImageDrawable(
                 ResourcesCompat.getDrawable(
                     binding.icon.context.resources,
-                    cabinetMode.iconId,
+                    model.iconId,
                     binding.icon.context.theme
                 )
             )
-            binding.title.setText(cabinetMode.titleId)
+            binding.title.setText(model.titleId)
+
+            binding.root.setOnClickListener { onClick(model) }
+        }
+
+        private fun onClick(mode: CabinetMode) {
+            val appletPath = NativeLibrary.getAppletLaunchPath(AppletInfo.Cabinet.entryId)
+            NativeLibrary.setCurrentAppletId(AppletInfo.Cabinet.appletId)
+            NativeLibrary.setCabinetMode(mode.id)
+            val appletGame = Game(
+                title = YuzuApplication.appContext.getString(R.string.cabinet_applet),
+                path = appletPath
+            )
+            val action = HomeNavigationDirections.actionGlobalEmulationActivity(appletGame)
+            fragment.findNavController().navigate(action)
         }
     }
 }

src/android/app/src/main/java/org/yuzu/yuzu_emu/adapters/DriverAdapter.kt

@@ -7,65 +7,39 @@ import android.text.TextUtils
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import androidx.recyclerview.widget.AsyncDifferConfig
-import androidx.recyclerview.widget.DiffUtil
-import androidx.recyclerview.widget.ListAdapter
-import androidx.recyclerview.widget.RecyclerView
-import org.yuzu.yuzu_emu.R
 import org.yuzu.yuzu_emu.databinding.CardDriverOptionBinding
+import org.yuzu.yuzu_emu.features.settings.model.StringSetting
+import org.yuzu.yuzu_emu.model.Driver
 import org.yuzu.yuzu_emu.model.DriverViewModel
-import org.yuzu.yuzu_emu.utils.GpuDriverHelper
-import org.yuzu.yuzu_emu.utils.GpuDriverMetadata
+import org.yuzu.yuzu_emu.viewholder.AbstractViewHolder
 
 class DriverAdapter(private val driverViewModel: DriverViewModel) :
-    ListAdapter<Pair<String, GpuDriverMetadata>, DriverAdapter.DriverViewHolder>(
-        AsyncDifferConfig.Builder(DiffCallback()).build()
+    AbstractSingleSelectionList<Driver, DriverAdapter.DriverViewHolder>(
+        driverViewModel.driverList.value
     ) {
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): DriverViewHolder {
-        val binding =
-            CardDriverOptionBinding.inflate(LayoutInflater.from(parent.context), parent, false)
-        return DriverViewHolder(binding)
-    }
-
-    override fun getItemCount(): Int = currentList.size
-
-    override fun onBindViewHolder(holder: DriverViewHolder, position: Int) =
-        holder.bind(currentList[position])
-
-    private fun onSelectDriver(position: Int) {
-        driverViewModel.setSelectedDriverIndex(position)
-        notifyItemChanged(driverViewModel.previouslySelectedDriver)
-        notifyItemChanged(driverViewModel.selectedDriver)
-    }
-
-    private fun onDeleteDriver(driverData: Pair<String, GpuDriverMetadata>, position: Int) {
-        if (driverViewModel.selectedDriver > position) {
-            driverViewModel.setSelectedDriverIndex(driverViewModel.selectedDriver - 1)
-        }
-        if (GpuDriverHelper.customDriverSettingData == driverData.second) {
-            driverViewModel.setSelectedDriverIndex(0)
-        }
-        driverViewModel.driversToDelete.add(driverData.first)
-        driverViewModel.removeDriver(driverData)
-        notifyItemRemoved(position)
-        notifyItemChanged(driverViewModel.selectedDriver)
+        CardDriverOptionBinding.inflate(LayoutInflater.from(parent.context), parent, false)
+            .also { return DriverViewHolder(it) }
     }
 
     inner class DriverViewHolder(val binding: CardDriverOptionBinding) :
-        RecyclerView.ViewHolder(binding.root) {
-        private lateinit var driverData: Pair<String, GpuDriverMetadata>
-
-        fun bind(driverData: Pair<String, GpuDriverMetadata>) {
-            this.driverData = driverData
-            val driver = driverData.second
-
+        AbstractViewHolder<Driver>(binding) {
+        override fun bind(model: Driver) {
             binding.apply {
-                radioButton.isChecked = driverViewModel.selectedDriver == bindingAdapterPosition
+                radioButton.isChecked = model.selected
                 root.setOnClickListener {
-                    onSelectDriver(bindingAdapterPosition)
+                    selectItem(bindingAdapterPosition) {
+                        driverViewModel.onDriverSelected(it)
+                        driverViewModel.showClearButton(!StringSetting.DRIVER_PATH.global)
+                    }
                 }
                 buttonDelete.setOnClickListener {
-                    onDeleteDriver(driverData, bindingAdapterPosition)
+                    removeSelectableItem(
+                        bindingAdapterPosition
+                    ) { removedPosition: Int, selectedPosition: Int ->
+                        driverViewModel.onDriverRemoved(removedPosition, selectedPosition)
+                        driverViewModel.showClearButton(!StringSetting.DRIVER_PATH.global)
+                    }
                 }
 
                 // Delay marquee by 3s
@@ -80,38 +54,19 @@ class DriverAdapter(private val driverViewModel: DriverViewModel) :
                     },
                     3000
                 )
-                if (driver.name == null) {
-                    title.setText(R.string.system_gpu_driver)
-                    description.text = ""
-                    version.text = ""
-                    version.visibility = View.GONE
-                    description.visibility = View.GONE
-                    buttonDelete.visibility = View.GONE
-                } else {
-                    title.text = driver.name
-                    version.text = driver.version
-                    description.text = driver.description
+                title.text = model.title
+                version.text = model.version
+                description.text = model.description
+                if (model.description.isNotEmpty()) {
                     version.visibility = View.VISIBLE
                     description.visibility = View.VISIBLE
                     buttonDelete.visibility = View.VISIBLE
+                } else {
+                    version.visibility = View.GONE
+                    description.visibility = View.GONE
+                    buttonDelete.visibility = View.GONE
                 }
             }
         }
     }
-
-    private class DiffCallback : DiffUtil.ItemCallback<Pair<String, GpuDriverMetadata>>() {
-        override fun areItemsTheSame(
-            oldItem: Pair<String, GpuDriverMetadata>,
-            newItem: Pair<String, GpuDriverMetadata>
-        ): Boolean {
-            return oldItem.first == newItem.first
-        }
-
-        override fun areContentsTheSame(
-            oldItem: Pair<String, GpuDriverMetadata>,
-            newItem: Pair<String, GpuDriverMetadata>
-        ): Boolean {
-            return oldItem.second == newItem.second
-        }
-    }
 }

src/android/app/src/main/java/org/yuzu/yuzu_emu/adapters/FolderAdapter.kt

@@ -8,19 +8,14 @@ import android.text.TextUtils
 import android.view.LayoutInflater
 import android.view.ViewGroup
 import androidx.fragment.app.FragmentActivity
-import androidx.recyclerview.widget.AsyncDifferConfig
-import androidx.recyclerview.widget.DiffUtil
-import androidx.recyclerview.widget.ListAdapter
-import androidx.recyclerview.widget.RecyclerView
 import org.yuzu.yuzu_emu.databinding.CardFolderBinding
 import org.yuzu.yuzu_emu.fragments.GameFolderPropertiesDialogFragment
 import org.yuzu.yuzu_emu.model.GameDir
 import org.yuzu.yuzu_emu.model.GamesViewModel
+import org.yuzu.yuzu_emu.viewholder.AbstractViewHolder
 
 class FolderAdapter(val activity: FragmentActivity, val gamesViewModel: GamesViewModel) :
-    ListAdapter<GameDir, FolderAdapter.FolderViewHolder>(
-        AsyncDifferConfig.Builder(DiffCallback()).build()
-    ) {
+    AbstractDiffAdapter<GameDir, FolderAdapter.FolderViewHolder>() {
     override fun onCreateViewHolder(
         parent: ViewGroup,
         viewType: Int
@@ -29,18 +24,11 @@ class FolderAdapter(val activity: FragmentActivity, val gamesViewModel: GamesVie
             .also { return FolderViewHolder(it) }
     }
 
-    override fun onBindViewHolder(holder: FolderAdapter.FolderViewHolder, position: Int) =
-        holder.bind(currentList[position])
-
     inner class FolderViewHolder(val binding: CardFolderBinding) :
-        RecyclerView.ViewHolder(binding.root) {
-        private lateinit var gameDir: GameDir
-
-        fun bind(gameDir: GameDir) {
-            this.gameDir = gameDir
-
+        AbstractViewHolder<GameDir>(binding) {
+        override fun bind(model: GameDir) {
             binding.apply {
-                path.text = Uri.parse(gameDir.uriString).path
+                path.text = Uri.parse(model.uriString).path
                 path.postDelayed(
                     {
                         path.isSelected = true
@@ -50,7 +38,7 @@ class FolderAdapter(val activity: FragmentActivity, val gamesViewModel: GamesVie
                 )
 
                 buttonEdit.setOnClickListener {
-                    GameFolderPropertiesDialogFragment.newInstance(this@FolderViewHolder.gameDir)
+                    GameFolderPropertiesDialogFragment.newInstance(model)
                         .show(
                             activity.supportFragmentManager,
                             GameFolderPropertiesDialogFragment.TAG
@@ -58,19 +46,9 @@ class FolderAdapter(val activity: FragmentActivity, val gamesViewModel: GamesVie
                 }
 
                 buttonDelete.setOnClickListener {
-                    gamesViewModel.removeFolder(this@FolderViewHolder.gameDir)
+                    gamesViewModel.removeFolder(model)
                 }
             }
         }
     }
-
-    private class DiffCallback : DiffUtil.ItemCallback<GameDir>() {
-        override fun areItemsTheSame(oldItem: GameDir, newItem: GameDir): Boolean {
-            return oldItem == newItem
-        }
-
-        override fun areContentsTheSame(oldItem: GameDir, newItem: GameDir): Boolean {
-            return oldItem == newItem
-        }
-    }
 }

src/android/app/src/main/java/org/yuzu/yuzu_emu/adapters/GameAdapter.kt

@@ -9,7 +9,6 @@ import android.graphics.drawable.LayerDrawable
 import android.net.Uri
 import android.text.TextUtils
 import android.view.LayoutInflater
-import android.view.View
 import android.view.ViewGroup
 import android.widget.ImageView
 import android.widget.Toast
@@ -25,10 +24,6 @@ import androidx.lifecycle.ViewModelProvider
 import androidx.lifecycle.lifecycleScope
 import androidx.navigation.findNavController
 import androidx.preference.PreferenceManager
-import androidx.recyclerview.widget.AsyncDifferConfig
-import androidx.recyclerview.widget.DiffUtil
-import androidx.recyclerview.widget.ListAdapter
-import androidx.recyclerview.widget.RecyclerView
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
@@ -36,122 +31,26 @@ import org.yuzu.yuzu_emu.HomeNavigationDirections
 import org.yuzu.yuzu_emu.R
 import org.yuzu.yuzu_emu.YuzuApplication
 import org.yuzu.yuzu_emu.activities.EmulationActivity
-import org.yuzu.yuzu_emu.adapters.GameAdapter.GameViewHolder
 import org.yuzu.yuzu_emu.databinding.CardGameBinding
 import org.yuzu.yuzu_emu.model.Game
 import org.yuzu.yuzu_emu.model.GamesViewModel
 import org.yuzu.yuzu_emu.utils.GameIconUtils
+import org.yuzu.yuzu_emu.viewholder.AbstractViewHolder
 
 class GameAdapter(private val activity: AppCompatActivity) :
-    ListAdapter<Game, GameViewHolder>(AsyncDifferConfig.Builder(DiffCallback()).build()),
-    View.OnClickListener,
-    View.OnLongClickListener {
+    AbstractDiffAdapter<Game, GameAdapter.GameViewHolder>() {
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): GameViewHolder {
-        // Create a new view.
-        val binding = CardGameBinding.inflate(LayoutInflater.from(parent.context), parent, false)
-        binding.cardGame.setOnClickListener(this)
-        binding.cardGame.setOnLongClickListener(this)
-
-        // Use that view to create a ViewHolder.
-        return GameViewHolder(binding)
-    }
-
-    override fun onBindViewHolder(holder: GameViewHolder, position: Int) =
-        holder.bind(currentList[position])
-
-    override fun getItemCount(): Int = currentList.size
-
-    /**
-     * Launches the game that was clicked on.
-     *
-     * @param view The card representing the game the user wants to play.
-     */
-    override fun onClick(view: View) {
-        val holder = view.tag as GameViewHolder
-
-        val gameExists = DocumentFile.fromSingleUri(
-            YuzuApplication.appContext,
-            Uri.parse(holder.game.path)
-        )?.exists() == true
-        if (!gameExists) {
-            Toast.makeText(
-                YuzuApplication.appContext,
-                R.string.loader_error_file_not_found,
-                Toast.LENGTH_LONG
-            ).show()
-
-            ViewModelProvider(activity)[GamesViewModel::class.java].reloadGames(true)
-            return
-        }
-
-        val preferences = PreferenceManager.getDefaultSharedPreferences(YuzuApplication.appContext)
-        preferences.edit()
-            .putLong(
-                holder.game.keyLastPlayedTime,
-                System.currentTimeMillis()
-            )
-            .apply()
-
-        val openIntent = Intent(YuzuApplication.appContext, EmulationActivity::class.java).apply {
-            action = Intent.ACTION_VIEW
-            data = Uri.parse(holder.game.path)
-        }
-
-        activity.lifecycleScope.launch {
-            withContext(Dispatchers.IO) {
-                val layerDrawable = ResourcesCompat.getDrawable(
-                    YuzuApplication.appContext.resources,
-                    R.drawable.shortcut,
-                    null
-                ) as LayerDrawable
-                layerDrawable.setDrawableByLayerId(
-                    R.id.shortcut_foreground,
-                    GameIconUtils.getGameIcon(activity, holder.game)
-                        .toDrawable(YuzuApplication.appContext.resources)
-                )
-                val inset = YuzuApplication.appContext.resources
-                    .getDimensionPixelSize(R.dimen.icon_inset)
-                layerDrawable.setLayerInset(1, inset, inset, inset, inset)
-                val shortcut =
-                    ShortcutInfoCompat.Builder(YuzuApplication.appContext, holder.game.path)
-                        .setShortLabel(holder.game.title)
-                        .setIcon(
-                            IconCompat.createWithAdaptiveBitmap(
-                                layerDrawable.toBitmap(config = Bitmap.Config.ARGB_8888)
-                            )
-                        )
-                        .setIntent(openIntent)
-                        .build()
-                ShortcutManagerCompat.pushDynamicShortcut(YuzuApplication.appContext, shortcut)
-            }
-        }
-
-        val action = HomeNavigationDirections.actionGlobalEmulationActivity(holder.game, true)
-        view.findNavController().navigate(action)
-    }
-
-    override fun onLongClick(view: View): Boolean {
-        val holder = view.tag as GameViewHolder
-        val action = HomeNavigationDirections.actionGlobalPerGamePropertiesFragment(holder.game)
-        view.findNavController().navigate(action)
-        return true
+        CardGameBinding.inflate(LayoutInflater.from(parent.context), parent, false)
+            .also { return GameViewHolder(it) }
     }
 
     inner class GameViewHolder(val binding: CardGameBinding) :
-        RecyclerView.ViewHolder(binding.root) {
-        lateinit var game: Game
-
-        init {
-            binding.cardGame.tag = this
-        }
-
-        fun bind(game: Game) {
-            this.game = game
-
+        AbstractViewHolder<Game>(binding) {
+        override fun bind(model: Game) {
             binding.imageGameScreen.scaleType = ImageView.ScaleType.CENTER_CROP
-            GameIconUtils.loadGameIcon(game, binding.imageGameScreen)
+            GameIconUtils.loadGameIcon(model, binding.imageGameScreen)
 
-            binding.textGameTitle.text = game.title.replace("[\\t\\n\\r]+".toRegex(), " ")
+            binding.textGameTitle.text = model.title.replace("[\\t\\n\\r]+".toRegex(), " ")
 
             binding.textGameTitle.postDelayed(
                 {
@@ -160,16 +59,79 @@ class GameAdapter(private val activity: AppCompatActivity) :
                 },
                 3000
             )
-        }
-    }
 
-    private class DiffCallback : DiffUtil.ItemCallback<Game>() {
-        override fun areItemsTheSame(oldItem: Game, newItem: Game): Boolean {
-            return oldItem == newItem
+            binding.cardGame.setOnClickListener { onClick(model) }
+            binding.cardGame.setOnLongClickListener { onLongClick(model) }
         }
 
-        override fun areContentsTheSame(oldItem: Game, newItem: Game): Boolean {
-            return oldItem == newItem
+        fun onClick(game: Game) {
+            val gameExists = DocumentFile.fromSingleUri(
+                YuzuApplication.appContext,
+                Uri.parse(game.path)
+            )?.exists() == true
+            if (!gameExists) {
+                Toast.makeText(
+                    YuzuApplication.appContext,
+                    R.string.loader_error_file_not_found,
+                    Toast.LENGTH_LONG
+                ).show()
+
+                ViewModelProvider(activity)[GamesViewModel::class.java].reloadGames(true)
+                return
+            }
+
+            val preferences =
+                PreferenceManager.getDefaultSharedPreferences(YuzuApplication.appContext)
+            preferences.edit()
+                .putLong(
+                    game.keyLastPlayedTime,
+                    System.currentTimeMillis()
+                )
+                .apply()
+
+            val openIntent =
+                Intent(YuzuApplication.appContext, EmulationActivity::class.java).apply {
+                    action = Intent.ACTION_VIEW
+                    data = Uri.parse(game.path)
+                }
+
+            activity.lifecycleScope.launch {
+                withContext(Dispatchers.IO) {
+                    val layerDrawable = ResourcesCompat.getDrawable(
+                        YuzuApplication.appContext.resources,
+                        R.drawable.shortcut,
+                        null
+                    ) as LayerDrawable
+                    layerDrawable.setDrawableByLayerId(
+                        R.id.shortcut_foreground,
+                        GameIconUtils.getGameIcon(activity, game)
+                            .toDrawable(YuzuApplication.appContext.resources)
+                    )
+                    val inset = YuzuApplication.appContext.resources
+                        .getDimensionPixelSize(R.dimen.icon_inset)
+                    layerDrawable.setLayerInset(1, inset, inset, inset, inset)
+                    val shortcut =
+                        ShortcutInfoCompat.Builder(YuzuApplication.appContext, game.path)
+                            .setShortLabel(game.title)
+                            .setIcon(
+                                IconCompat.createWithAdaptiveBitmap(
+                                    layerDrawable.toBitmap(config = Bitmap.Config.ARGB_8888)
+                                )
+                            )
+                            .setIntent(openIntent)
+                            .build()
+                    ShortcutManagerCompat.pushDynamicShortcut(YuzuApplication.appContext, shortcut)
+                }
+            }
+
+            val action = HomeNavigationDirections.actionGlobalEmulationActivity(game, true)
+            binding.root.findNavController().navigate(action)
+        }
+
+        fun onLongClick(game: Game): Boolean {
+            val action = HomeNavigationDirections.actionGlobalPerGamePropertiesFragment(game)
+            binding.root.findNavController().navigate(action)
+            return true
         }
     }
 }

src/android/app/src/main/java/org/yuzu/yuzu_emu/adapters/GamePropertiesAdapter.kt

@@ -12,23 +12,22 @@ import androidx.lifecycle.Lifecycle
 import androidx.lifecycle.LifecycleOwner
 import androidx.lifecycle.lifecycleScope
 import androidx.lifecycle.repeatOnLifecycle
-import androidx.recyclerview.widget.RecyclerView
 import kotlinx.coroutines.launch
 import org.yuzu.yuzu_emu.databinding.CardInstallableIconBinding
 import org.yuzu.yuzu_emu.databinding.CardSimpleOutlinedBinding
 import org.yuzu.yuzu_emu.model.GameProperty
 import org.yuzu.yuzu_emu.model.InstallableProperty
 import org.yuzu.yuzu_emu.model.SubmenuProperty
+import org.yuzu.yuzu_emu.viewholder.AbstractViewHolder
 
 class GamePropertiesAdapter(
     private val viewLifecycle: LifecycleOwner,
     private var properties: List<GameProperty>
-) :
-    RecyclerView.Adapter<GamePropertiesAdapter.GamePropertyViewHolder>() {
+) : AbstractListAdapter<GameProperty, AbstractViewHolder<GameProperty>>(properties) {
     override fun onCreateViewHolder(
         parent: ViewGroup,
         viewType: Int
-    ): GamePropertyViewHolder {
+    ): AbstractViewHolder<GameProperty> {
         val inflater = LayoutInflater.from(parent.context)
         return when (viewType) {
             PropertyType.Submenu.ordinal -> {
@@ -51,11 +50,6 @@ class GamePropertiesAdapter(
         }
     }
 
-    override fun getItemCount(): Int = properties.size
-
-    override fun onBindViewHolder(holder: GamePropertyViewHolder, position: Int) =
-        holder.bind(properties[position])
-
     override fun getItemViewType(position: Int): Int {
         return when (properties[position]) {
             is SubmenuProperty -> PropertyType.Submenu.ordinal
@@ -63,14 +57,10 @@ class GamePropertiesAdapter(
         }
     }
 
-    sealed class GamePropertyViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
-        abstract fun bind(property: GameProperty)
-    }
-
     inner class SubmenuPropertyViewHolder(val binding: CardSimpleOutlinedBinding) :
-        GamePropertyViewHolder(binding.root) {
-        override fun bind(property: GameProperty) {
-            val submenuProperty = property as SubmenuProperty
+        AbstractViewHolder<GameProperty>(binding) {
+        override fun bind(model: GameProperty) {
+            val submenuProperty = model as SubmenuProperty
 
             binding.root.setOnClickListener {
                 submenuProperty.action.invoke()
@@ -108,9 +98,9 @@ class GamePropertiesAdapter(
     }
 
     inner class InstallablePropertyViewHolder(val binding: CardInstallableIconBinding) :
-        GamePropertyViewHolder(binding.root) {
-        override fun bind(property: GameProperty) {
-            val installableProperty = property as InstallableProperty
+        AbstractViewHolder<GameProperty>(binding) {
+        override fun bind(model: GameProperty) {
+            val installableProperty = model as InstallableProperty
 
             binding.title.setText(installableProperty.titleId)
             binding.description.setText(installableProperty.descriptionId)

src/android/app/src/main/java/org/yuzu/yuzu_emu/adapters/HomeSettingAdapter.kt

@@ -14,69 +14,37 @@ import androidx.lifecycle.Lifecycle
 import androidx.lifecycle.LifecycleOwner
 import androidx.lifecycle.lifecycleScope
 import androidx.lifecycle.repeatOnLifecycle
-import androidx.recyclerview.widget.RecyclerView
 import kotlinx.coroutines.launch
 import org.yuzu.yuzu_emu.R
 import org.yuzu.yuzu_emu.databinding.CardHomeOptionBinding
 import org.yuzu.yuzu_emu.fragments.MessageDialogFragment
 import org.yuzu.yuzu_emu.model.HomeSetting
+import org.yuzu.yuzu_emu.viewholder.AbstractViewHolder
 
 class HomeSettingAdapter(
     private val activity: AppCompatActivity,
     private val viewLifecycle: LifecycleOwner,
-    var options: List<HomeSetting>
-) :
-    RecyclerView.Adapter<HomeSettingAdapter.HomeOptionViewHolder>(),
-    View.OnClickListener {
+    options: List<HomeSetting>
+) : AbstractListAdapter<HomeSetting, HomeSettingAdapter.HomeOptionViewHolder>(options) {
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): HomeOptionViewHolder {
-        val binding =
-            CardHomeOptionBinding.inflate(LayoutInflater.from(parent.context), parent, false)
-        binding.root.setOnClickListener(this)
-        return HomeOptionViewHolder(binding)
-    }
-
-    override fun getItemCount(): Int {
-        return options.size
-    }
-
-    override fun onBindViewHolder(holder: HomeOptionViewHolder, position: Int) {
-        holder.bind(options[position])
-    }
-
-    override fun onClick(view: View) {
-        val holder = view.tag as HomeOptionViewHolder
-        if (holder.option.isEnabled.invoke()) {
-            holder.option.onClick.invoke()
-        } else {
-            MessageDialogFragment.newInstance(
-                activity,
-                titleId = holder.option.disabledTitleId,
-                descriptionId = holder.option.disabledMessageId
-            ).show(activity.supportFragmentManager, MessageDialogFragment.TAG)
-        }
+        CardHomeOptionBinding.inflate(LayoutInflater.from(parent.context), parent, false)
+            .also { return HomeOptionViewHolder(it) }
     }
 
     inner class HomeOptionViewHolder(val binding: CardHomeOptionBinding) :
-        RecyclerView.ViewHolder(binding.root) {
-        lateinit var option: HomeSetting
-
-        init {
-            itemView.tag = this
-        }
-
-        fun bind(option: HomeSetting) {
-            this.option = option
-            binding.optionTitle.text = activity.resources.getString(option.titleId)
-            binding.optionDescription.text = activity.resources.getString(option.descriptionId)
+        AbstractViewHolder<HomeSetting>(binding) {
+        override fun bind(model: HomeSetting) {
+            binding.optionTitle.text = activity.resources.getString(model.titleId)
+            binding.optionDescription.text = activity.resources.getString(model.descriptionId)
             binding.optionIcon.setImageDrawable(
                 ResourcesCompat.getDrawable(
                     activity.resources,
-                    option.iconId,
+                    model.iconId,
                     activity.theme
                 )
             )
 
-            when (option.titleId) {
+            when (model.titleId) {
                 R.string.get_early_access ->
                     binding.optionLayout.background =
                         ContextCompat.getDrawable(
@@ -85,7 +53,7 @@ class HomeSettingAdapter(
                         )
             }
 
-            if (!option.isEnabled.invoke()) {
+            if (!model.isEnabled.invoke()) {
                 binding.optionTitle.alpha = 0.5f
                 binding.optionDescription.alpha = 0.5f
                 binding.optionIcon.alpha = 0.5f
@@ -93,7 +61,7 @@ class HomeSettingAdapter(
 
             viewLifecycle.lifecycleScope.launch {
                 viewLifecycle.repeatOnLifecycle(Lifecycle.State.CREATED) {
-                    option.details.collect { updateOptionDetails(it) }
+                    model.details.collect { updateOptionDetails(it) }
                 }
             }
             binding.optionDetail.postDelayed(
@@ -103,6 +71,20 @@ class HomeSettingAdapter(
                 },
                 3000
             )
+
+            binding.root.setOnClickListener { onClick(model) }
+        }
+
+        private fun onClick(model: HomeSetting) {
+            if (model.isEnabled.invoke()) {
+                model.onClick.invoke()
+            } else {
+                MessageDialogFragment.newInstance(
+                    activity,
+                    titleId = model.disabledTitleId,
+                    descriptionId = model.disabledMessageId
+                ).show(activity.supportFragmentManager, MessageDialogFragment.TAG)
+            }
         }
 
         private fun updateOptionDetails(detailString: String) {

src/android/app/src/main/java/org/yuzu/yuzu_emu/adapters/InstallableAdapter.kt

@@ -6,43 +6,33 @@ package org.yuzu.yuzu_emu.adapters
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import androidx.recyclerview.widget.RecyclerView
 import org.yuzu.yuzu_emu.databinding.CardInstallableBinding
 import org.yuzu.yuzu_emu.model.Installable
+import org.yuzu.yuzu_emu.viewholder.AbstractViewHolder
 
-class InstallableAdapter(private val installables: List<Installable>) :
-    RecyclerView.Adapter<InstallableAdapter.InstallableViewHolder>() {
+class InstallableAdapter(installables: List<Installable>) :
+    AbstractListAdapter<Installable, InstallableAdapter.InstallableViewHolder>(installables) {
     override fun onCreateViewHolder(
         parent: ViewGroup,
         viewType: Int
     ): InstallableAdapter.InstallableViewHolder {
-        val binding =
-            CardInstallableBinding.inflate(LayoutInflater.from(parent.context), parent, false)
-        return InstallableViewHolder(binding)
+        CardInstallableBinding.inflate(LayoutInflater.from(parent.context), parent, false)
+            .also { return InstallableViewHolder(it) }
     }
 
-    override fun getItemCount(): Int = installables.size
-
-    override fun onBindViewHolder(holder: InstallableAdapter.InstallableViewHolder, position: Int) =
-        holder.bind(installables[position])
-
     inner class InstallableViewHolder(val binding: CardInstallableBinding) :
-        RecyclerView.ViewHolder(binding.root) {
-        lateinit var installable: Installable
+        AbstractViewHolder<Installable>(binding) {
+        override fun bind(model: Installable) {
+            binding.title.setText(model.titleId)
+            binding.description.setText(model.descriptionId)
 
-        fun bind(installable: Installable) {
-            this.installable = installable
-
-            binding.title.setText(installable.titleId)
-            binding.description.setText(installable.descriptionId)
-
-            if (installable.install != null) {
+            if (model.install != null) {
                 binding.buttonInstall.visibility = View.VISIBLE
-                binding.buttonInstall.setOnClickListener { installable.install.invoke() }
+                binding.buttonInstall.setOnClickListener { model.install.invoke() }
             }
-            if (installable.export != null) {
+            if (model.export != null) {
                 binding.buttonExport.visibility = View.VISIBLE
-                binding.buttonExport.setOnClickListener { installable.export.invoke() }
+                binding.buttonExport.setOnClickListener { model.export.invoke() }
             }
         }
     }

src/android/app/src/main/java/org/yuzu/yuzu_emu/adapters/LicenseAdapter.kt

@@ -7,49 +7,33 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import androidx.appcompat.app.AppCompatActivity
-import androidx.recyclerview.widget.RecyclerView
-import androidx.recyclerview.widget.RecyclerView.ViewHolder
-import org.yuzu.yuzu_emu.YuzuApplication
 import org.yuzu.yuzu_emu.databinding.ListItemSettingBinding
 import org.yuzu.yuzu_emu.fragments.LicenseBottomSheetDialogFragment
 import org.yuzu.yuzu_emu.model.License
+import org.yuzu.yuzu_emu.viewholder.AbstractViewHolder
 
-class LicenseAdapter(private val activity: AppCompatActivity, var licenses: List<License>) :
-    RecyclerView.Adapter<LicenseAdapter.LicenseViewHolder>(),
-    View.OnClickListener {
+class LicenseAdapter(private val activity: AppCompatActivity, licenses: List<License>) :
+    AbstractListAdapter<License, LicenseAdapter.LicenseViewHolder>(licenses) {
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): LicenseViewHolder {
-        val binding =
-            ListItemSettingBinding.inflate(LayoutInflater.from(parent.context), parent, false)
-        binding.root.setOnClickListener(this)
-        return LicenseViewHolder(binding)
+        ListItemSettingBinding.inflate(LayoutInflater.from(parent.context), parent, false)
+            .also { return LicenseViewHolder(it) }
     }
 
-    override fun getItemCount(): Int = licenses.size
+    inner class LicenseViewHolder(val binding: ListItemSettingBinding) :
+        AbstractViewHolder<License>(binding) {
+        override fun bind(model: License) {
+            binding.apply {
+                textSettingName.text = root.context.getString(model.titleId)
+                textSettingDescription.text = root.context.getString(model.descriptionId)
+                textSettingValue.visibility = View.GONE
 
-    override fun onBindViewHolder(holder: LicenseViewHolder, position: Int) {
-        holder.bind(licenses[position])
-    }
-
-    override fun onClick(view: View) {
-        val license = (view.tag as LicenseViewHolder).license
-        LicenseBottomSheetDialogFragment.newInstance(license)
-            .show(activity.supportFragmentManager, LicenseBottomSheetDialogFragment.TAG)
-    }
-
-    inner class LicenseViewHolder(val binding: ListItemSettingBinding) : ViewHolder(binding.root) {
-        lateinit var license: License
-
-        init {
-            itemView.tag = this
+                root.setOnClickListener { onClick(model) }
+            }
         }
 
-        fun bind(license: License) {
-            this.license = license
-
-            val context = YuzuApplication.appContext
-            binding.textSettingName.text = context.getString(license.titleId)
-            binding.textSettingDescription.text = context.getString(license.descriptionId)
-            binding.textSettingValue.visibility = View.GONE
+        private fun onClick(license: License) {
+            LicenseBottomSheetDialogFragment.newInstance(license)
+                .show(activity.supportFragmentManager, LicenseBottomSheetDialogFragment.TAG)
         }
     }
 }

src/android/app/src/main/java/org/yuzu/yuzu_emu/adapters/SetupAdapter.kt

@@ -10,7 +10,6 @@ import android.view.ViewGroup
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.content.res.ResourcesCompat
 import androidx.lifecycle.ViewModelProvider
-import androidx.recyclerview.widget.RecyclerView
 import com.google.android.material.button.MaterialButton
 import org.yuzu.yuzu_emu.databinding.PageSetupBinding
 import org.yuzu.yuzu_emu.model.HomeViewModel
@@ -18,31 +17,19 @@ import org.yuzu.yuzu_emu.model.SetupCallback
 import org.yuzu.yuzu_emu.model.SetupPage
 import org.yuzu.yuzu_emu.model.StepState
 import org.yuzu.yuzu_emu.utils.ViewUtils
+import org.yuzu.yuzu_emu.viewholder.AbstractViewHolder
 
-class SetupAdapter(val activity: AppCompatActivity, val pages: List<SetupPage>) :
-    RecyclerView.Adapter<SetupAdapter.SetupPageViewHolder>() {
+class SetupAdapter(val activity: AppCompatActivity, pages: List<SetupPage>) :
+    AbstractListAdapter<SetupPage, SetupAdapter.SetupPageViewHolder>(pages) {
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): SetupPageViewHolder {
-        val binding = PageSetupBinding.inflate(LayoutInflater.from(parent.context), parent, false)
-        return SetupPageViewHolder(binding)
+        PageSetupBinding.inflate(LayoutInflater.from(parent.context), parent, false)
+            .also { return SetupPageViewHolder(it) }
     }
 
-    override fun getItemCount(): Int = pages.size
-
-    override fun onBindViewHolder(holder: SetupPageViewHolder, position: Int) =
-        holder.bind(pages[position])
-
     inner class SetupPageViewHolder(val binding: PageSetupBinding) :
-        RecyclerView.ViewHolder(binding.root), SetupCallback {
-        lateinit var page: SetupPage
-
-        init {
-            itemView.tag = this
-        }
-
-        fun bind(page: SetupPage) {
-            this.page = page
-
-            if (page.stepCompleted.invoke() == StepState.COMPLETE) {
+        AbstractViewHolder<SetupPage>(binding), SetupCallback {
+        override fun bind(model: SetupPage) {
+            if (model.stepCompleted.invoke() == StepState.COMPLETE) {
                 binding.buttonAction.visibility = View.INVISIBLE
                 binding.textConfirmation.visibility = View.VISIBLE
             }
@@ -50,31 +37,31 @@ class SetupAdapter(val activity: AppCompatActivity, val pages: List<SetupPage>)
             binding.icon.setImageDrawable(
                 ResourcesCompat.getDrawable(
                     activity.resources,
-                    page.iconId,
+                    model.iconId,
                     activity.theme
                 )
             )
-            binding.textTitle.text = activity.resources.getString(page.titleId)
+            binding.textTitle.text = activity.resources.getString(model.titleId)
             binding.textDescription.text =
-                Html.fromHtml(activity.resources.getString(page.descriptionId), 0)
+                Html.fromHtml(activity.resources.getString(model.descriptionId), 0)
 
             binding.buttonAction.apply {
-                text = activity.resources.getString(page.buttonTextId)
-                if (page.buttonIconId != 0) {
+                text = activity.resources.getString(model.buttonTextId)
+                if (model.buttonIconId != 0) {
                     icon = ResourcesCompat.getDrawable(
                         activity.resources,
-                        page.buttonIconId,
+                        model.buttonIconId,
                         activity.theme
                     )
                 }
                 iconGravity =
-                    if (page.leftAlignedIcon) {
+                    if (model.leftAlignedIcon) {
                         MaterialButton.ICON_GRAVITY_START
                     } else {
                         MaterialButton.ICON_GRAVITY_END
                     }
                 setOnClickListener {
-                    page.buttonAction.invoke(this@SetupPageViewHolder)
+                    model.buttonAction.invoke(this@SetupPageViewHolder)
                 }
             }
         }

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/Settings.kt

@@ -79,7 +79,18 @@ object Settings {
     const val PREF_THEME_MODE = "ThemeMode"
     const val PREF_BLACK_BACKGROUNDS = "BlackBackgrounds"
 
-    const val LayoutOption_Unspecified = 0
-    const val LayoutOption_MobilePortrait = 4
-    const val LayoutOption_MobileLandscape = 5
+    enum class EmulationOrientation(val int: Int) {
+        Unspecified(0),
+        SensorLandscape(5),
+        Landscape(1),
+        ReverseLandscape(2),
+        SensorPortrait(6),
+        Portrait(4),
+        ReversePortrait(3);
+
+        companion object {
+            fun from(int: Int): EmulationOrientation =
+                entries.firstOrNull { it.int == int } ?: Unspecified
+        }
+    }
 }

src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/DriverManagerFragment.kt

@@ -3,6 +3,7 @@
 
 package org.yuzu.yuzu_emu.fragments
 
+import android.annotation.SuppressLint
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
@@ -13,20 +14,26 @@ import androidx.core.view.WindowInsetsCompat
 import androidx.core.view.updatePadding
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.activityViewModels
+import androidx.lifecycle.Lifecycle
 import androidx.lifecycle.lifecycleScope
+import androidx.lifecycle.repeatOnLifecycle
 import androidx.navigation.findNavController
 import androidx.navigation.fragment.navArgs
 import androidx.recyclerview.widget.GridLayoutManager
 import com.google.android.material.transition.MaterialSharedAxis
-import kotlinx.coroutines.flow.collectLatest
+import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 import org.yuzu.yuzu_emu.R
 import org.yuzu.yuzu_emu.adapters.DriverAdapter
 import org.yuzu.yuzu_emu.databinding.FragmentDriverManagerBinding
+import org.yuzu.yuzu_emu.features.settings.model.StringSetting
+import org.yuzu.yuzu_emu.model.Driver.Companion.toDriver
 import org.yuzu.yuzu_emu.model.DriverViewModel
 import org.yuzu.yuzu_emu.model.HomeViewModel
 import org.yuzu.yuzu_emu.utils.FileUtil
 import org.yuzu.yuzu_emu.utils.GpuDriverHelper
+import org.yuzu.yuzu_emu.utils.NativeConfig
 import java.io.File
 import java.io.IOException
 
@@ -55,12 +62,43 @@ class DriverManagerFragment : Fragment() {
         return binding.root
     }
 
+    // This is using the correct scope, lint is just acting up
+    @SuppressLint("UnsafeRepeatOnLifecycleDetector")
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
         homeViewModel.setNavigationVisibility(visible = false, animated = true)
         homeViewModel.setStatusBarShadeVisibility(visible = false)
 
         driverViewModel.onOpenDriverManager(args.game)
+        if (NativeConfig.isPerGameConfigLoaded()) {
+            binding.toolbarDrivers.inflateMenu(R.menu.menu_driver_manager)
+            driverViewModel.showClearButton(!StringSetting.DRIVER_PATH.global)
+            binding.toolbarDrivers.setOnMenuItemClickListener {
+                when (it.itemId) {
+                    R.id.menu_driver_clear -> {
+                        StringSetting.DRIVER_PATH.global = true
+                        driverViewModel.updateDriverList()
+                        (binding.listDrivers.adapter as DriverAdapter)
+                            .replaceList(driverViewModel.driverList.value)
+                        driverViewModel.showClearButton(false)
+                        true
+                    }
+
+                    else -> false
+                }
+            }
+
+            viewLifecycleOwner.lifecycleScope.apply {
+                launch {
+                    repeatOnLifecycle(Lifecycle.State.STARTED) {
+                        driverViewModel.showClearButton.collect {
+                            binding.toolbarDrivers.menu
+                                .findItem(R.id.menu_driver_clear).isVisible = it
+                        }
+                    }
+                }
+            }
+        }
 
         if (!driverViewModel.isInteractionAllowed.value) {
             DriversLoadingDialogFragment().show(
@@ -85,25 +123,6 @@ class DriverManagerFragment : Fragment() {
             adapter = DriverAdapter(driverViewModel)
         }
 
-        viewLifecycleOwner.lifecycleScope.apply {
-            launch {
-                driverViewModel.driverList.collectLatest {
-                    (binding.listDrivers.adapter as DriverAdapter).submitList(it)
-                }
-            }
-            launch {
-                driverViewModel.newDriverInstalled.collect {
-                    if (_binding != null && it) {
-                        (binding.listDrivers.adapter as DriverAdapter).apply {
-                            notifyItemChanged(driverViewModel.previouslySelectedDriver)
-                            notifyItemChanged(driverViewModel.selectedDriver)
-                            driverViewModel.setNewDriverInstalled(false)
-                        }
-                    }
-                }
-            }
-        }
-
         setInsets()
     }
 
@@ -160,7 +179,7 @@ class DriverManagerFragment : Fragment() {
                 false
             ) {
                 val driverPath =
-                    "${GpuDriverHelper.driverStoragePath}/${FileUtil.getFilename(result)}"
+                    "${GpuDriverHelper.driverStoragePath}${FileUtil.getFilename(result)}"
                 val driverFile = File(driverPath)
 
                 // Ignore file exceptions when a user selects an invalid zip
@@ -177,12 +196,21 @@ class DriverManagerFragment : Fragment() {
 
                 val driverData = GpuDriverHelper.getMetadataFromZip(driverFile)
                 val driverInList =
-                    driverViewModel.driverList.value.firstOrNull { it.second == driverData }
+                    driverViewModel.driverData.firstOrNull { it.second == driverData }
                 if (driverInList != null) {
                     return@newInstance getString(R.string.driver_already_installed)
                 } else {
-                    driverViewModel.addDriver(Pair(driverPath, driverData))
-                    driverViewModel.setNewDriverInstalled(true)
+                    driverViewModel.onDriverAdded(Pair(driverPath, driverData))
+                    withContext(Dispatchers.Main) {
+                        if (_binding != null) {
+                            val adapter = binding.listDrivers.adapter as DriverAdapter
+                            adapter.addItem(driverData.toDriver())
+                            adapter.selectItem(adapter.currentList.indices.last)
+                            driverViewModel.showClearButton(!StringSetting.DRIVER_PATH.global)
+                            binding.listDrivers
+                                .smoothScrollToPosition(adapter.currentList.indices.last)
+                        }
+                    }
                 }
                 return@newInstance Any()
             }.show(childFragmentManager, IndeterminateProgressDialogFragment.TAG)

src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/EmulationFragment.kt

@@ -50,6 +50,7 @@ import org.yuzu.yuzu_emu.databinding.FragmentEmulationBinding
 import org.yuzu.yuzu_emu.features.settings.model.BooleanSetting
 import org.yuzu.yuzu_emu.features.settings.model.IntSetting
 import org.yuzu.yuzu_emu.features.settings.model.Settings
+import org.yuzu.yuzu_emu.features.settings.model.Settings.EmulationOrientation
 import org.yuzu.yuzu_emu.features.settings.utils.SettingsFile
 import org.yuzu.yuzu_emu.model.DriverViewModel
 import org.yuzu.yuzu_emu.model.Game
@@ -99,6 +100,7 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
      */
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
+        updateOrientation()
 
         val intentUri: Uri? = requireActivity().intent.data
         var intentGame: Game? = null
@@ -458,13 +460,23 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
     @SuppressLint("SourceLockedOrientationActivity")
     private fun updateOrientation() {
         emulationActivity?.let {
-            it.requestedOrientation = when (IntSetting.RENDERER_SCREEN_LAYOUT.getInt()) {
-                Settings.LayoutOption_MobileLandscape ->
+            val orientationSetting =
+                EmulationOrientation.from(IntSetting.RENDERER_SCREEN_LAYOUT.getInt())
+            it.requestedOrientation = when (orientationSetting) {
+                EmulationOrientation.Unspecified -> ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED
+                EmulationOrientation.SensorLandscape ->
                     ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE
-                Settings.LayoutOption_MobilePortrait ->
-                    ActivityInfo.SCREEN_ORIENTATION_USER_PORTRAIT
-                Settings.LayoutOption_Unspecified -> ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED
-                else -> ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE
+
+                EmulationOrientation.Landscape -> ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE
+                EmulationOrientation.ReverseLandscape ->
+                    ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE
+
+                EmulationOrientation.SensorPortrait ->
+                    ActivityInfo.SCREEN_ORIENTATION_SENSOR_PORTRAIT
+
+                EmulationOrientation.Portrait -> ActivityInfo.SCREEN_ORIENTATION_PORTRAIT
+                EmulationOrientation.ReversePortrait ->
+                    ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT
             }
         }
     }
@@ -651,7 +663,7 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
     @SuppressLint("SourceLockedOrientationActivity")
     private fun startConfiguringControls() {
         // Lock the current orientation to prevent editing inconsistencies
-        if (IntSetting.RENDERER_SCREEN_LAYOUT.getInt() == Settings.LayoutOption_Unspecified) {
+        if (IntSetting.RENDERER_SCREEN_LAYOUT.getInt() == EmulationOrientation.Unspecified.int) {
             emulationActivity?.let {
                 it.requestedOrientation =
                     if (resources.configuration.orientation == Configuration.ORIENTATION_PORTRAIT) {
@@ -669,7 +681,7 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
         binding.doneControlConfig.visibility = View.GONE
         binding.surfaceInputOverlay.setIsInEditMode(false)
         // Unlock the orientation if it was locked for editing
-        if (IntSetting.RENDERER_SCREEN_LAYOUT.getInt() == Settings.LayoutOption_Unspecified) {
+        if (IntSetting.RENDERER_SCREEN_LAYOUT.getInt() == EmulationOrientation.Unspecified.int) {
             emulationActivity?.let {
                 it.requestedOrientation = ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED
             }

src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/GamePropertiesFragment.kt

@@ -445,7 +445,8 @@ class GamePropertiesFragment : Fragment() {
             val zipResult = FileUtil.zipFromInternalStorage(
                 File(saveLocation),
                 saveLocation.replaceAfterLast("/", ""),
-                BufferedOutputStream(requireContext().contentResolver.openOutputStream(result))
+                BufferedOutputStream(requireContext().contentResolver.openOutputStream(result)),
+                compression = false
             )
             return@newInstance when (zipResult) {
                 TaskState.Completed -> getString(R.string.export_success)

src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/InstallableFragment.kt

@@ -7,20 +7,39 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import android.widget.Toast
+import androidx.activity.result.contract.ActivityResultContracts
 import androidx.core.view.ViewCompat
 import androidx.core.view.WindowInsetsCompat
 import androidx.core.view.updatePadding
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.activityViewModels
+import androidx.lifecycle.Lifecycle
+import androidx.lifecycle.lifecycleScope
+import androidx.lifecycle.repeatOnLifecycle
 import androidx.navigation.findNavController
 import androidx.recyclerview.widget.GridLayoutManager
 import com.google.android.material.transition.MaterialSharedAxis
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+import org.yuzu.yuzu_emu.NativeLibrary
 import org.yuzu.yuzu_emu.R
+import org.yuzu.yuzu_emu.YuzuApplication
 import org.yuzu.yuzu_emu.adapters.InstallableAdapter
 import org.yuzu.yuzu_emu.databinding.FragmentInstallablesBinding
 import org.yuzu.yuzu_emu.model.HomeViewModel
 import org.yuzu.yuzu_emu.model.Installable
+import org.yuzu.yuzu_emu.model.TaskState
 import org.yuzu.yuzu_emu.ui.main.MainActivity
+import org.yuzu.yuzu_emu.utils.DirectoryInitialization
+import org.yuzu.yuzu_emu.utils.FileUtil
+import java.io.BufferedInputStream
+import java.io.BufferedOutputStream
+import java.io.File
+import java.math.BigInteger
+import java.time.LocalDateTime
+import java.time.format.DateTimeFormatter
 
 class InstallableFragment : Fragment() {
     private var _binding: FragmentInstallablesBinding? = null
@@ -56,6 +75,17 @@ class InstallableFragment : Fragment() {
             binding.root.findNavController().popBackStack()
         }
 
+        viewLifecycleOwner.lifecycleScope.launch {
+            repeatOnLifecycle(Lifecycle.State.CREATED) {
+                homeViewModel.openImportSaves.collect {
+                    if (it) {
+                        importSaves.launch(arrayOf("application/zip"))
+                        homeViewModel.setOpenImportSaves(false)
+                    }
+                }
+            }
+        }
+
         val installables = listOf(
             Installable(
                 R.string.user_data,
@@ -63,6 +93,43 @@ class InstallableFragment : Fragment() {
                 install = { mainActivity.importUserData.launch(arrayOf("application/zip")) },
                 export = { mainActivity.exportUserData.launch("export.zip") }
             ),
+            Installable(
+                R.string.manage_save_data,
+                R.string.manage_save_data_description,
+                install = {
+                    MessageDialogFragment.newInstance(
+                        requireActivity(),
+                        titleId = R.string.import_save_warning,
+                        descriptionId = R.string.import_save_warning_description,
+                        positiveAction = { homeViewModel.setOpenImportSaves(true) }
+                    ).show(parentFragmentManager, MessageDialogFragment.TAG)
+                },
+                export = {
+                    val oldSaveDataFolder = File(
+                        "${DirectoryInitialization.userDirectory}/nand" +
+                            NativeLibrary.getDefaultProfileSaveDataRoot(false)
+                    )
+                    val futureSaveDataFolder = File(
+                        "${DirectoryInitialization.userDirectory}/nand" +
+                            NativeLibrary.getDefaultProfileSaveDataRoot(true)
+                    )
+                    if (!oldSaveDataFolder.exists() && !futureSaveDataFolder.exists()) {
+                        Toast.makeText(
+                            YuzuApplication.appContext,
+                            R.string.no_save_data_found,
+                            Toast.LENGTH_SHORT
+                        ).show()
+                        return@Installable
+                    } else {
+                        exportSaves.launch(
+                            "${getString(R.string.save_data)} " +
+                                LocalDateTime.now().format(
+                                    DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm")
+                                )
+                        )
+                    }
+                }
+            ),
             Installable(
                 R.string.install_game_content,
                 R.string.install_game_content_description,
@@ -121,4 +188,156 @@ class InstallableFragment : Fragment() {
 
             windowInsets
         }
+
+    private val importSaves =
+        registerForActivityResult(ActivityResultContracts.OpenDocument()) { result ->
+            if (result == null) {
+                return@registerForActivityResult
+            }
+
+            val inputZip = requireContext().contentResolver.openInputStream(result)
+            val cacheSaveDir = File("${requireContext().cacheDir.path}/saves/")
+            cacheSaveDir.mkdir()
+
+            if (inputZip == null) {
+                Toast.makeText(
+                    YuzuApplication.appContext,
+                    getString(R.string.fatal_error),
+                    Toast.LENGTH_LONG
+                ).show()
+                return@registerForActivityResult
+            }
+
+            IndeterminateProgressDialogFragment.newInstance(
+                requireActivity(),
+                R.string.save_files_importing,
+                false
+            ) {
+                try {
+                    FileUtil.unzipToInternalStorage(BufferedInputStream(inputZip), cacheSaveDir)
+                    val files = cacheSaveDir.listFiles()
+                    var successfulImports = 0
+                    var failedImports = 0
+                    if (files != null) {
+                        for (file in files) {
+                            if (file.isDirectory) {
+                                val baseSaveDir =
+                                    NativeLibrary.getSavePath(BigInteger(file.name, 16).toString())
+                                if (baseSaveDir.isEmpty()) {
+                                    failedImports++
+                                    continue
+                                }
+
+                                val internalSaveFolder = File(
+                                    "${DirectoryInitialization.userDirectory}/nand$baseSaveDir"
+                                )
+                                internalSaveFolder.deleteRecursively()
+                                internalSaveFolder.mkdir()
+                                file.copyRecursively(target = internalSaveFolder, overwrite = true)
+                                successfulImports++
+                            }
+                        }
+                    }
+
+                    withContext(Dispatchers.Main) {
+                        if (successfulImports == 0) {
+                            MessageDialogFragment.newInstance(
+                                requireActivity(),
+                                titleId = R.string.save_file_invalid_zip_structure,
+                                descriptionId = R.string.save_file_invalid_zip_structure_description
+                            ).show(parentFragmentManager, MessageDialogFragment.TAG)
+                            return@withContext
+                        }
+                        val successString = if (failedImports > 0) {
+                            """
+                            ${
+                            requireContext().resources.getQuantityString(
+                                R.plurals.saves_import_success,
+                                successfulImports,
+                                successfulImports
+                            )
+                            }
+                            ${
+                            requireContext().resources.getQuantityString(
+                                R.plurals.saves_import_failed,
+                                failedImports,
+                                failedImports
+                            )
+                            }
+                            """
+                        } else {
+                            requireContext().resources.getQuantityString(
+                                R.plurals.saves_import_success,
+                                successfulImports,
+                                successfulImports
+                            )
+                        }
+                        MessageDialogFragment.newInstance(
+                            requireActivity(),
+                            titleId = R.string.import_complete,
+                            descriptionString = successString
+                        ).show(parentFragmentManager, MessageDialogFragment.TAG)
+                    }
+
+                    cacheSaveDir.deleteRecursively()
+                } catch (e: Exception) {
+                    Toast.makeText(
+                        YuzuApplication.appContext,
+                        getString(R.string.fatal_error),
+                        Toast.LENGTH_LONG
+                    ).show()
+                }
+            }.show(parentFragmentManager, IndeterminateProgressDialogFragment.TAG)
+        }
+
+    private val exportSaves = registerForActivityResult(
+        ActivityResultContracts.CreateDocument("application/zip")
+    ) { result ->
+        if (result == null) {
+            return@registerForActivityResult
+        }
+
+        IndeterminateProgressDialogFragment.newInstance(
+            requireActivity(),
+            R.string.save_files_exporting,
+            false
+        ) {
+            val cacheSaveDir = File("${requireContext().cacheDir.path}/saves/")
+            cacheSaveDir.mkdir()
+
+            val oldSaveDataFolder = File(
+                "${DirectoryInitialization.userDirectory}/nand" +
+                    NativeLibrary.getDefaultProfileSaveDataRoot(false)
+            )
+            if (oldSaveDataFolder.exists()) {
+                oldSaveDataFolder.copyRecursively(cacheSaveDir)
+            }
+
+            val futureSaveDataFolder = File(
+                "${DirectoryInitialization.userDirectory}/nand" +
+                    NativeLibrary.getDefaultProfileSaveDataRoot(true)
+            )
+            if (futureSaveDataFolder.exists()) {
+                futureSaveDataFolder.copyRecursively(cacheSaveDir)
+            }
+
+            val saveFilesTotal = cacheSaveDir.listFiles()?.size ?: 0
+            if (saveFilesTotal == 0) {
+                cacheSaveDir.deleteRecursively()
+                return@newInstance getString(R.string.no_save_data_found)
+            }
+
+            val zipResult = FileUtil.zipFromInternalStorage(
+                cacheSaveDir,
+                cacheSaveDir.path,
+                BufferedOutputStream(requireContext().contentResolver.openOutputStream(result))
+            )
+            cacheSaveDir.deleteRecursively()
+
+            return@newInstance when (zipResult) {
+                TaskState.Completed -> getString(R.string.export_success)
+                TaskState.Cancelled, TaskState.Failed -> getString(R.string.export_failed)
+            }
+        }.show(parentFragmentManager, IndeterminateProgressDialogFragment.TAG)
+    }
 }

src/android/app/src/main/java/org/yuzu/yuzu_emu/model/Driver.kt

@@ -0,0 +1,27 @@
+// SPDX-FileCopyrightText: 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+package org.yuzu.yuzu_emu.model
+
+import org.yuzu.yuzu_emu.utils.GpuDriverMetadata
+
+data class Driver(
+    override var selected: Boolean,
+    val title: String,
+    val version: String = "",
+    val description: String = ""
+) : SelectableItem {
+    override fun onSelectionStateChanged(selected: Boolean) {
+        this.selected = selected
+    }
+
+    companion object {
+        fun GpuDriverMetadata.toDriver(selected: Boolean = false): Driver =
+            Driver(
+                selected,
+                this.name ?: "",
+                this.version ?: "",
+                this.description ?: ""
+            )
+    }
+}

src/android/app/src/main/java/org/yuzu/yuzu_emu/model/DriverViewModel.kt

@@ -9,6 +9,7 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.SharingStarted
 import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.flow.combine
 import kotlinx.coroutines.flow.stateIn
 import kotlinx.coroutines.launch
@@ -17,11 +18,10 @@ import org.yuzu.yuzu_emu.R
 import org.yuzu.yuzu_emu.YuzuApplication
 import org.yuzu.yuzu_emu.features.settings.model.StringSetting
 import org.yuzu.yuzu_emu.features.settings.utils.SettingsFile
-import org.yuzu.yuzu_emu.utils.FileUtil
+import org.yuzu.yuzu_emu.model.Driver.Companion.toDriver
 import org.yuzu.yuzu_emu.utils.GpuDriverHelper
 import org.yuzu.yuzu_emu.utils.GpuDriverMetadata
 import org.yuzu.yuzu_emu.utils.NativeConfig
-import java.io.BufferedOutputStream
 import java.io.File
 
 class DriverViewModel : ViewModel() {
@@ -38,97 +38,81 @@ class DriverViewModel : ViewModel() {
             !loading && ready && !deleting
         }.stateIn(viewModelScope, SharingStarted.WhileSubscribed(), initialValue = false)
 
-    private val _driverList = MutableStateFlow(GpuDriverHelper.getDrivers())
-    val driverList: StateFlow<MutableList<Pair<String, GpuDriverMetadata>>> get() = _driverList
+    var driverData = GpuDriverHelper.getDrivers()
 
-    var previouslySelectedDriver = 0
-    var selectedDriver = -1
+    private val _driverList = MutableStateFlow(emptyList<Driver>())
+    val driverList: StateFlow<List<Driver>> get() = _driverList
 
     // Used for showing which driver is currently installed within the driver manager card
     private val _selectedDriverTitle = MutableStateFlow("")
     val selectedDriverTitle: StateFlow<String> get() = _selectedDriverTitle
 
-    private val _newDriverInstalled = MutableStateFlow(false)
-    val newDriverInstalled: StateFlow<Boolean> get() = _newDriverInstalled
+    private val _showClearButton = MutableStateFlow(false)
+    val showClearButton = _showClearButton.asStateFlow()
 
-    val driversToDelete = mutableListOf<String>()
+    private val driversToDelete = mutableListOf<String>()
 
     init {
-        val currentDriverMetadata = GpuDriverHelper.installedCustomDriverData
-        findSelectedDriver(currentDriverMetadata)
-
-        // If a user had installed a driver before the manager was implemented, this zips
-        // the installed driver to UserData/gpu_drivers/CustomDriver.zip so that it can
-        // be indexed and exported as expected.
-        if (selectedDriver == -1) {
-            val driverToSave =
-                File(GpuDriverHelper.driverStoragePath, "CustomDriver.zip")
-            driverToSave.createNewFile()
-            FileUtil.zipFromInternalStorage(
-                File(GpuDriverHelper.driverInstallationPath!!),
-                GpuDriverHelper.driverInstallationPath!!,
-                BufferedOutputStream(driverToSave.outputStream())
-            )
-            _driverList.value.add(Pair(driverToSave.path, currentDriverMetadata))
-            setSelectedDriverIndex(_driverList.value.size - 1)
-        }
-
-        // If a user had installed a driver before the config was reworked to be multiplatform,
-        // we have save the path of the previously selected driver to the new setting.
-        if (StringSetting.DRIVER_PATH.getString(true).isEmpty() && selectedDriver > 0 &&
-            StringSetting.DRIVER_PATH.global
-        ) {
-            StringSetting.DRIVER_PATH.setString(_driverList.value[selectedDriver].first)
-            NativeConfig.saveGlobalConfig()
-        } else {
-            findSelectedDriver(GpuDriverHelper.customDriverSettingData)
-        }
+        updateDriverList()
         updateDriverNameForGame(null)
     }
 
-    fun setSelectedDriverIndex(value: Int) {
-        if (selectedDriver != -1) {
-            previouslySelectedDriver = selectedDriver
+    fun reloadDriverData() {
+        _areDriversLoading.value = true
+        driverData = GpuDriverHelper.getDrivers()
+        updateDriverList()
+        _areDriversLoading.value = false
+    }
+
+    fun updateDriverList() {
+        val selectedDriver = GpuDriverHelper.customDriverSettingData
+        val newDriverList = mutableListOf(
+            Driver(
+                selectedDriver == GpuDriverMetadata(),
+                YuzuApplication.appContext.getString(R.string.system_gpu_driver)
+            )
+        )
+        driverData.forEach {
+            newDriverList.add(it.second.toDriver(it.second == selectedDriver))
         }
-        selectedDriver = value
-    }
-
-    fun setNewDriverInstalled(value: Boolean) {
-        _newDriverInstalled.value = value
-    }
-
-    fun addDriver(driverData: Pair<String, GpuDriverMetadata>) {
-        val driverIndex = _driverList.value.indexOfFirst { it == driverData }
-        if (driverIndex == -1) {
-            _driverList.value.add(driverData)
-            setSelectedDriverIndex(_driverList.value.size - 1)
-            _selectedDriverTitle.value = driverData.second.name
-                ?: YuzuApplication.appContext.getString(R.string.system_gpu_driver)
-        } else {
-            setSelectedDriverIndex(driverIndex)
-        }
-    }
-
-    fun removeDriver(driverData: Pair<String, GpuDriverMetadata>) {
-        _driverList.value.remove(driverData)
+        _driverList.value = newDriverList
     }
 
     fun onOpenDriverManager(game: Game?) {
         if (game != null) {
             SettingsFile.loadCustomConfig(game)
         }
+        updateDriverList()
+    }
 
-        val driverPath = StringSetting.DRIVER_PATH.getString()
-        if (driverPath.isEmpty()) {
-            setSelectedDriverIndex(0)
+    fun showClearButton(value: Boolean) {
+        _showClearButton.value = value
+    }
+
+    fun onDriverSelected(position: Int) {
+        if (position == 0) {
+            StringSetting.DRIVER_PATH.setString("")
         } else {
-            findSelectedDriver(GpuDriverHelper.getMetadataFromZip(File(driverPath)))
+            StringSetting.DRIVER_PATH.setString(driverData[position - 1].first)
         }
     }
 
+    fun onDriverRemoved(removedPosition: Int, selectedPosition: Int) {
+        driversToDelete.add(driverData[removedPosition - 1].first)
+        driverData.removeAt(removedPosition - 1)
+        onDriverSelected(selectedPosition)
+    }
+
+    fun onDriverAdded(driver: Pair<String, GpuDriverMetadata>) {
+        if (driversToDelete.contains(driver.first)) {
+            driversToDelete.remove(driver.first)
+        }
+        driverData.add(driver)
+        onDriverSelected(driverData.size)
+    }
+
     fun onCloseDriverManager(game: Game?) {
         _isDeletingDrivers.value = true
-        StringSetting.DRIVER_PATH.setString(driverList.value[selectedDriver].first)
         updateDriverNameForGame(game)
         if (game == null) {
             NativeConfig.saveGlobalConfig()
@@ -181,20 +165,6 @@ class DriverViewModel : ViewModel() {
         }
     }
 
-    private fun findSelectedDriver(currentDriverMetadata: GpuDriverMetadata) {
-        if (driverList.value.size == 1) {
-            setSelectedDriverIndex(0)
-            return
-        }
-
-        driverList.value.forEachIndexed { i: Int, driver: Pair<String, GpuDriverMetadata> ->
-            if (driver.second == currentDriverMetadata) {
-                setSelectedDriverIndex(i)
-                return
-            }
-        }
-    }
-
     fun updateDriverNameForGame(game: Game?) {
         if (!GpuDriverHelper.supportsCustomDriverLoading()) {
             return
@@ -217,7 +187,6 @@ class DriverViewModel : ViewModel() {
 
     private fun setDriverReady() {
         _isDriverReady.value = true
-        _selectedDriverTitle.value = GpuDriverHelper.customDriverSettingData.name
-            ?: YuzuApplication.appContext.getString(R.string.system_gpu_driver)
+        updateName()
     }
 }

src/android/app/src/main/java/org/yuzu/yuzu_emu/model/GamesViewModel.kt

@@ -167,13 +167,14 @@ class GamesViewModel : ViewModel() {
             }
         }
 
-    fun onCloseGameFoldersFragment() =
+    fun onCloseGameFoldersFragment() {
+        NativeConfig.saveGlobalConfig()
         viewModelScope.launch {
             withContext(Dispatchers.IO) {
-                NativeConfig.saveGlobalConfig()
                 getGameDirs(true)
             }
         }
+    }
 
     private fun getGameDirs(reloadList: Boolean = false) {
         val gameDirs = NativeConfig.getGameDirs()

src/android/app/src/main/java/org/yuzu/yuzu_emu/model/SelectableItem.kt

@@ -0,0 +1,9 @@
+// SPDX-FileCopyrightText: 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+package org.yuzu.yuzu_emu.model
+
+interface SelectableItem {
+    var selected: Boolean
+    fun onSelectionStateChanged(selected: Boolean)
+}

src/android/app/src/main/java/org/yuzu/yuzu_emu/ui/main/MainActivity.kt

@@ -41,6 +41,7 @@ import org.yuzu.yuzu_emu.fragments.AddGameFolderDialogFragment
 import org.yuzu.yuzu_emu.fragments.IndeterminateProgressDialogFragment
 import org.yuzu.yuzu_emu.fragments.MessageDialogFragment
 import org.yuzu.yuzu_emu.model.AddonViewModel
+import org.yuzu.yuzu_emu.model.DriverViewModel
 import org.yuzu.yuzu_emu.model.GamesViewModel
 import org.yuzu.yuzu_emu.model.HomeViewModel
 import org.yuzu.yuzu_emu.model.TaskState
@@ -58,6 +59,7 @@ class MainActivity : AppCompatActivity(), ThemeProvider {
     private val gamesViewModel: GamesViewModel by viewModels()
     private val taskViewModel: TaskViewModel by viewModels()
     private val addonViewModel: AddonViewModel by viewModels()
+    private val driverViewModel: DriverViewModel by viewModels()
 
     override var themeId: Int = 0
 
@@ -625,7 +627,8 @@ class MainActivity : AppCompatActivity(), ThemeProvider {
                 File(DirectoryInitialization.userDirectory!!),
                 DirectoryInitialization.userDirectory!!,
                 BufferedOutputStream(contentResolver.openOutputStream(result)),
-                taskViewModel.cancelled
+                taskViewModel.cancelled,
+                compression = false
             )
             return@newInstance when (zipResult) {
                 TaskState.Completed -> getString(R.string.user_data_export_success)
@@ -688,6 +691,7 @@ class MainActivity : AppCompatActivity(), ThemeProvider {
                 NativeLibrary.initializeSystem(true)
                 NativeConfig.initializeGlobalConfig()
                 gamesViewModel.reloadGames(false)
+                driverViewModel.reloadDriverData()
 
                 return@newInstance getString(R.string.user_data_import_success)
             }.show(supportFragmentManager, IndeterminateProgressDialogFragment.TAG)

src/android/app/src/main/java/org/yuzu/yuzu_emu/utils/FileUtil.kt

@@ -21,6 +21,7 @@ import org.yuzu.yuzu_emu.model.TaskState
 import java.io.BufferedOutputStream
 import java.lang.NullPointerException
 import java.nio.charset.StandardCharsets
+import java.util.zip.Deflater
 import java.util.zip.ZipOutputStream
 import kotlin.IllegalStateException
 
@@ -312,15 +313,23 @@ object FileUtil {
      * @param inputFile File representation of the item that will be zipped
      * @param rootDir Directory containing the inputFile
      * @param outputStream Stream where the zip file will be output
+     * @param cancelled [StateFlow] that reports whether this process has been cancelled
+     * @param compression Disables compression if true
      */
     fun zipFromInternalStorage(
         inputFile: File,
         rootDir: String,
         outputStream: BufferedOutputStream,
-        cancelled: StateFlow<Boolean>? = null
+        cancelled: StateFlow<Boolean>? = null,
+        compression: Boolean = true
     ): TaskState {
         try {
             ZipOutputStream(outputStream).use { zos ->
+                if (!compression) {
+                    zos.setMethod(ZipOutputStream.DEFLATED)
+                    zos.setLevel(Deflater.NO_COMPRESSION)
+                }
+
                 inputFile.walkTopDown().forEach { file ->
                     if (cancelled?.value == true) {
                         return TaskState.Cancelled
@@ -338,6 +347,7 @@ object FileUtil {
                 }
             }
         } catch (e: Exception) {
+            Log.error("[FileUtil] Failed creating zip file - ${e.message}")
             return TaskState.Failed
         }
         return TaskState.Completed

src/android/app/src/main/java/org/yuzu/yuzu_emu/utils/GpuDriverHelper.kt

@@ -62,9 +62,6 @@ object GpuDriverHelper {
                 ?.sortedByDescending { it: Pair<String, GpuDriverMetadata> -> it.second.name }
                 ?.distinct()
                 ?.toMutableList() ?: mutableListOf()
-
-        // TODO: Get system driver information
-        drivers.add(0, Pair("", GpuDriverMetadata()))
         return drivers
     }
 

src/android/app/src/main/java/org/yuzu/yuzu_emu/viewholder/AbstractViewHolder.kt

@@ -0,0 +1,18 @@
+// SPDX-FileCopyrightText: 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+package org.yuzu.yuzu_emu.viewholder
+
+import androidx.recyclerview.widget.RecyclerView
+import androidx.viewbinding.ViewBinding
+import org.yuzu.yuzu_emu.adapters.AbstractDiffAdapter
+import org.yuzu.yuzu_emu.adapters.AbstractListAdapter
+
+/**
+ * [RecyclerView.ViewHolder] meant to work together with a [AbstractDiffAdapter] or a
+ * [AbstractListAdapter] so we can run [bind] on each list item without needing a manual hookup.
+ */
+abstract class AbstractViewHolder<Model>(binding: ViewBinding) :
+    RecyclerView.ViewHolder(binding.root) {
+    abstract fun bind(model: Model)
+}

src/android/app/src/main/jni/android_config.cpp

@@ -14,12 +14,6 @@ AndroidConfig::AndroidConfig(const std::string& config_name, ConfigType config_t
     }
 }
 
-AndroidConfig::~AndroidConfig() {
-    if (global) {
-        AndroidConfig::SaveAllValues();
-    }
-}
-
 void AndroidConfig::ReloadAllValues() {
     Reload();
     ReadAndroidValues();

src/android/app/src/main/jni/android_config.h

@@ -9,7 +9,6 @@ class AndroidConfig final : public Config {
 public:
     explicit AndroidConfig(const std::string& config_name = "config",
                            ConfigType config_type = ConfigType::GlobalConfig);
-    ~AndroidConfig() override;
 
     void ReloadAllValues() override;
     void SaveAllValues() override;

src/android/app/src/main/jni/native.cpp

@@ -45,15 +45,15 @@
 #include "core/frontend/applets/profile_select.h"
 #include "core/frontend/applets/software_keyboard.h"
 #include "core/frontend/applets/web_browser.h"
-#include "core/hid/emulated_controller.h"
-#include "core/hid/hid_core.h"
-#include "core/hid/hid_types.h"
 #include "core/hle/service/am/applet_ae.h"
 #include "core/hle/service/am/applet_oe.h"
 #include "core/hle/service/am/applets/applets.h"
 #include "core/hle/service/filesystem/filesystem.h"
 #include "core/loader/loader.h"
 #include "frontend_common/config.h"
+#include "hid_core/frontend/emulated_controller.h"
+#include "hid_core/hid_core.h"
+#include "hid_core/hid_types.h"
 #include "jni/android_common/android_common.h"
 #include "jni/id_cache.h"
 #include "jni/native.h"
@@ -410,8 +410,8 @@ void EmulationSession::OnGamepadConnectEvent([[maybe_unused]] int index) {
         jauto handheld = m_system.HIDCore().GetEmulatedController(Core::HID::NpadIdType::Handheld);
 
         if (controller->GetNpadStyleIndex() == Core::HID::NpadStyleIndex::Handheld) {
-            handheld->SetNpadStyleIndex(Core::HID::NpadStyleIndex::ProController);
-            controller->SetNpadStyleIndex(Core::HID::NpadStyleIndex::ProController);
+            handheld->SetNpadStyleIndex(Core::HID::NpadStyleIndex::Fullkey);
+            controller->SetNpadStyleIndex(Core::HID::NpadStyleIndex::Fullkey);
             handheld->Disconnect();
         }
     }
@@ -770,8 +770,8 @@ void Java_org_yuzu_yuzu_1emu_NativeLibrary_initializeEmptyUserDirectory(JNIEnv*
     ASSERT(user_id);
 
     const auto user_save_data_path = FileSys::SaveDataFactory::GetFullPath(
-        EmulationSession::GetInstance().System(), vfs_nand_dir, FileSys::SaveDataSpaceId::NandUser,
-        FileSys::SaveDataType::SaveData, 1, user_id->AsU128(), 0);
+        {}, vfs_nand_dir, FileSys::SaveDataSpaceId::NandUser, FileSys::SaveDataType::SaveData, 1,
+        user_id->AsU128(), 0);
 
     const auto full_path = Common::FS::ConcatPathSafe(nand_dir, user_save_data_path);
     if (!Common::FS::CreateParentDirs(full_path)) {
@@ -862,6 +862,9 @@ jobjectArray Java_org_yuzu_yuzu_1emu_NativeLibrary_getAddonsForFile(JNIEnv* env,
 jstring Java_org_yuzu_yuzu_1emu_NativeLibrary_getSavePath(JNIEnv* env, jobject jobj,
                                                           jstring jprogramId) {
     auto program_id = EmulationSession::GetProgramId(env, jprogramId);
+    if (program_id == 0) {
+        return ToJString(env, "");
+    }
 
     auto& system = EmulationSession::GetInstance().System();
 
@@ -875,11 +878,24 @@ jstring Java_org_yuzu_yuzu_1emu_NativeLibrary_getSavePath(JNIEnv* env, jobject j
                                                             FileSys::Mode::Read);
 
     const auto user_save_data_path = FileSys::SaveDataFactory::GetFullPath(
-        system, vfsNandDir, FileSys::SaveDataSpaceId::NandUser, FileSys::SaveDataType::SaveData,
+        {}, vfsNandDir, FileSys::SaveDataSpaceId::NandUser, FileSys::SaveDataType::SaveData,
         program_id, user_id->AsU128(), 0);
     return ToJString(env, user_save_data_path);
 }
 
+jstring Java_org_yuzu_yuzu_1emu_NativeLibrary_getDefaultProfileSaveDataRoot(JNIEnv* env,
+                                                                            jobject jobj,
+                                                                            jboolean jfuture) {
+    Service::Account::ProfileManager manager;
+    // TODO: Pass in a selected user once we get the relevant UI working
+    const auto user_id = manager.GetUser(static_cast<std::size_t>(0));
+    ASSERT(user_id);
+
+    const auto user_save_data_root =
+        FileSys::SaveDataFactory::GetUserGameSaveDataRoot(user_id->AsU128(), jfuture);
+    return ToJString(env, user_save_data_root);
+}
+
 void Java_org_yuzu_yuzu_1emu_NativeLibrary_addFileToFilesystemProvider(JNIEnv* env, jobject jobj,
                                                                        jstring jpath) {
     EmulationSession::GetInstance().ConfigureFilesystemProvider(GetJString(env, jpath));

src/android/app/src/main/res/menu/menu_driver_manager.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <item
+        android:id="@+id/menu_driver_clear"
+        android:icon="@drawable/ic_clear"
+        android:title="@string/clear"
+        app:showAsAction="always" />
+
+</menu>

src/android/app/src/main/res/values/arrays.xml

@@ -118,15 +118,23 @@
     </integer-array>
 
     <string-array name="rendererScreenLayoutNames">
-        <item>@string/screen_layout_landscape</item>
-        <item>@string/screen_layout_portrait</item>
         <item>@string/screen_layout_auto</item>
+        <item>@string/screen_layout_sensor_landscape</item>
+        <item>@string/screen_layout_landscape</item>
+        <item>@string/screen_layout_reverse_landscape</item>
+        <item>@string/screen_layout_sensor_portrait</item>
+        <item>@string/screen_layout_portrait</item>
+        <item>@string/screen_layout_reverse_portrait</item>
     </string-array>
 
     <integer-array name="rendererScreenLayoutValues">
-        <item>5</item>
-        <item>4</item>
         <item>0</item>
+        <item>5</item>
+        <item>1</item>
+        <item>2</item>
+        <item>6</item>
+        <item>4</item>
+        <item>3</item>
     </integer-array>
 
     <string-array name="rendererAspectRatioNames">

src/android/app/src/main/res/values/strings.xml

@@ -133,6 +133,15 @@
     <string name="add_game_folder">Add game folder</string>
     <string name="folder_already_added">This folder was already added!</string>
     <string name="game_folder_properties">Game folder properties</string>
+    <plurals name="saves_import_failed">
+        <item quantity="one">Failed to import %d save</item>
+        <item quantity="other">Failed to import %d saves</item>
+    </plurals>
+    <plurals name="saves_import_success">
+        <item quantity="one">Successfully imported %d save</item>
+        <item quantity="other">Successfully imported %d saves</item>
+    </plurals>
+    <string name="no_save_data_found">No save data found</string>
 
     <!-- Applet launcher strings -->
     <string name="applets">Applet launcher</string>
@@ -276,6 +285,7 @@
     <string name="global">Global</string>
     <string name="custom">Custom</string>
     <string name="notice">Notice</string>
+    <string name="import_complete">Import complete</string>
 
     <!-- GPU driver installation -->
     <string name="select_gpu_driver">Select GPU driver</string>
@@ -463,9 +473,13 @@
     <string name="anti_aliasing_smaa">SMAA</string>
 
     <!-- Screen Layouts -->
-    <string name="screen_layout_landscape">Landscape</string>
-    <string name="screen_layout_portrait">Portrait</string>
     <string name="screen_layout_auto">Auto</string>
+    <string name="screen_layout_sensor_landscape">Sensor landscape</string>
+    <string name="screen_layout_landscape">Landscape</string>
+    <string name="screen_layout_reverse_landscape">Reverse landscape</string>
+    <string name="screen_layout_sensor_portrait">Sensor portrait</string>
+    <string name="screen_layout_portrait">Portrait</string>
+    <string name="screen_layout_reverse_portrait">Reverse portrait</string>
 
     <!-- Aspect Ratios -->
     <string name="ratio_default">Default (16:9)</string>

src/android/app/src/main/res/xml/game_mode_config.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<game-mode-config
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:supportsBatteryGameMode="true"
+    android:supportsPerformanceGameMode="true"
+    android:allowGameDownscaling="false"
+    android:allowGameFpsOverride="false"/>

src/audio_core/device/device_session.cpp

@@ -8,8 +8,11 @@
 #include "audio_core/sink/sink_stream.h"
 #include "core/core.h"
 #include "core/core_timing.h"
+#include "core/guest_memory.h"
 #include "core/memory.h"
 
+#include "core/hle/kernel/k_process.h"
+
 namespace AudioCore {
 
 using namespace std::literals;
@@ -25,7 +28,7 @@ DeviceSession::~DeviceSession() {
 }
 
 Result DeviceSession::Initialize(std::string_view name_, SampleFormat sample_format_,
-                                 u16 channel_count_, size_t session_id_, u32 handle_,
+                                 u16 channel_count_, size_t session_id_, Kernel::KProcess* handle_,
                                  u64 applet_resource_user_id_, Sink::StreamType type_) {
     if (stream) {
         Finalize();
@@ -36,6 +39,7 @@ Result DeviceSession::Initialize(std::string_view name_, SampleFormat sample_for
     channel_count = channel_count_;
     session_id = session_id_;
     handle = handle_;
+    handle->Open();
     applet_resource_user_id = applet_resource_user_id_;
 
     if (type == Sink::StreamType::In) {
@@ -54,6 +58,11 @@ void DeviceSession::Finalize() {
         sink->CloseStream(stream);
         stream = nullptr;
     }
+
+    if (handle) {
+        handle->Close();
+        handle = nullptr;
+    }
 }
 
 void DeviceSession::Start() {
@@ -91,7 +100,7 @@ void DeviceSession::AppendBuffers(std::span<const AudioBuffer> buffers) {
             stream->AppendBuffer(new_buffer, tmp_samples);
         } else {
             Core::Memory::CpuGuestMemory<s16, Core::Memory::GuestMemoryFlags::UnsafeRead> samples(
-                system.ApplicationMemory(), buffer.samples, buffer.size / sizeof(s16));
+                handle->GetMemory(), buffer.samples, buffer.size / sizeof(s16));
             stream->AppendBuffer(new_buffer, samples);
         }
     }
@@ -100,7 +109,7 @@ void DeviceSession::AppendBuffers(std::span<const AudioBuffer> buffers) {
 void DeviceSession::ReleaseBuffer(const AudioBuffer& buffer) const {
     if (type == Sink::StreamType::In) {
         auto samples{stream->ReleaseBuffer(buffer.size / sizeof(s16))};
-        system.ApplicationMemory().WriteBlockUnsafe(buffer.samples, samples.data(), buffer.size);
+        handle->GetMemory().WriteBlockUnsafe(buffer.samples, samples.data(), buffer.size);
     }
 }
 

src/audio_core/device/device_session.h

@@ -20,6 +20,10 @@ struct EventType;
 } // namespace Timing
 } // namespace Core
 
+namespace Kernel {
+class KProcess;
+} // namespace Kernel
+
 namespace AudioCore {
 
 namespace Sink {
@@ -44,13 +48,13 @@ public:
      * @param sample_format           - Sample format for this device's output.
      * @param channel_count           - Number of channels for this device (2 or 6).
      * @param session_id              - This session's id.
-     * @param handle                  - Handle for this device session (unused).
+     * @param handle                  - Process handle for this device session.
      * @param applet_resource_user_id - Applet resource user id for this device session (unused).
      * @param type                    - Type of this stream (Render, In, Out).
      * @return Result code for this call.
      */
     Result Initialize(std::string_view name, SampleFormat sample_format, u16 channel_count,
-                      size_t session_id, u32 handle, u64 applet_resource_user_id,
+                      size_t session_id, Kernel::KProcess* handle, u64 applet_resource_user_id,
                       Sink::StreamType type);
 
     /**
@@ -137,8 +141,8 @@ private:
     u16 channel_count{};
     /// Session id of this device session
     size_t session_id{};
-    /// Handle of this device session
-    u32 handle{};
+    /// Process handle of device memory owner
+    Kernel::KProcess* handle{};
     /// Applet resource user id of this device session
     u64 applet_resource_user_id{};
     /// Total number of samples played by this device session

src/audio_core/in/audio_in_system.cpp

@@ -57,7 +57,7 @@ Result System::IsConfigValid(const std::string_view device_name,
 }
 
 Result System::Initialize(std::string device_name, const AudioInParameter& in_params,
-                          const u32 handle_, const u64 applet_resource_user_id_) {
+                          Kernel::KProcess* handle_, const u64 applet_resource_user_id_) {
     auto result{IsConfigValid(device_name, in_params)};
     if (result.IsError()) {
         return result;

src/audio_core/in/audio_in_system.h

@@ -19,7 +19,8 @@ class System;
 
 namespace Kernel {
 class KEvent;
-}
+class KProcess;
+} // namespace Kernel
 
 namespace AudioCore::AudioIn {
 
@@ -93,12 +94,12 @@ public:
      *
      * @param device_name             - The name of the requested input device.
      * @param in_params               - Input parameters, see AudioInParameter.
-     * @param handle                  - Unused.
+     * @param handle                  - Process handle.
      * @param applet_resource_user_id - Unused.
      * @return Result code.
      */
-    Result Initialize(std::string device_name, const AudioInParameter& in_params, u32 handle,
-                      u64 applet_resource_user_id);
+    Result Initialize(std::string device_name, const AudioInParameter& in_params,
+                      Kernel::KProcess* handle, u64 applet_resource_user_id);
 
     /**
      * Start this system.
@@ -244,8 +245,8 @@ public:
 private:
     /// Core system
     Core::System& system;
-    /// (Unused)
-    u32 handle{};
+    /// Process handle
+    Kernel::KProcess* handle{};
     /// (Unused)
     u64 applet_resource_user_id{};
     /// Buffer event, signalled when a buffer is ready

src/audio_core/out/audio_out_system.cpp

@@ -48,8 +48,8 @@ Result System::IsConfigValid(std::string_view device_name,
     return Service::Audio::ResultInvalidChannelCount;
 }
 
-Result System::Initialize(std::string device_name, const AudioOutParameter& in_params, u32 handle_,
-                          u64 applet_resource_user_id_) {
+Result System::Initialize(std::string device_name, const AudioOutParameter& in_params,
+                          Kernel::KProcess* handle_, u64 applet_resource_user_id_) {
     auto result = IsConfigValid(device_name, in_params);
     if (result.IsError()) {
         return result;

src/audio_core/out/audio_out_system.h

@@ -19,7 +19,8 @@ class System;
 
 namespace Kernel {
 class KEvent;
-}
+class KProcess;
+} // namespace Kernel
 
 namespace AudioCore::AudioOut {
 
@@ -84,12 +85,12 @@ public:
      *
      * @param device_name             - The name of the requested output device.
      * @param in_params               - Input parameters, see AudioOutParameter.
-     * @param handle                  - Unused.
+     * @param handle                  - Process handle.
      * @param applet_resource_user_id - Unused.
      * @return Result code.
      */
-    Result Initialize(std::string device_name, const AudioOutParameter& in_params, u32 handle,
-                      u64 applet_resource_user_id);
+    Result Initialize(std::string device_name, const AudioOutParameter& in_params,
+                      Kernel::KProcess* handle, u64 applet_resource_user_id);
 
     /**
      * Start this system.
@@ -228,8 +229,8 @@ public:
 private:
     /// Core system
     Core::System& system;
-    /// (Unused)
-    u32 handle{};
+    /// Process handle
+    Kernel::KProcess* handle{};
     /// (Unused)
     u64 applet_resource_user_id{};
     /// Buffer event, signalled when a buffer is ready

src/audio_core/renderer/command/data_source/decode.cpp

@@ -9,6 +9,7 @@
 #include "common/fixed_point.h"
 #include "common/logging/log.h"
 #include "common/scratch_buffer.h"
+#include "core/guest_memory.h"
 #include "core/memory.h"
 
 namespace AudioCore::Renderer {

src/common/common_types.h

@@ -45,6 +45,7 @@ using f32 = float;  ///< 32-bit floating point
 using f64 = double; ///< 64-bit floating point
 
 using VAddr = u64;    ///< Represents a pointer in the userspace virtual address space.
+using DAddr = u64;    ///< Represents a pointer in the device specific virtual address space.
 using PAddr = u64;    ///< Represents a pointer in the ARM11 physical address space.
 using GPUVAddr = u64; ///< Represents a pointer in the GPU virtual address space.
 

src/common/page_table.cpp

@@ -2,6 +2,7 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "common/page_table.h"
+#include "common/scope_exit.h"
 
 namespace Common {
 
@@ -11,29 +12,10 @@ PageTable::~PageTable() noexcept = default;
 
 bool PageTable::BeginTraversal(TraversalEntry* out_entry, TraversalContext* out_context,
                                Common::ProcessAddress address) const {
-    // Setup invalid defaults.
-    out_entry->phys_addr = 0;
-    out_entry->block_size = page_size;
-    out_context->next_page = 0;
+    out_context->next_offset = GetInteger(address);
+    out_context->next_page = address / page_size;
 
-    // Validate that we can read the actual entry.
-    const auto page = address / page_size;
-    if (page >= backing_addr.size()) {
-        return false;
-    }
-
-    // Validate that the entry is mapped.
-    const auto phys_addr = backing_addr[page];
-    if (phys_addr == 0) {
-        return false;
-    }
-
-    // Populate the results.
-    out_entry->phys_addr = phys_addr + GetInteger(address);
-    out_context->next_page = page + 1;
-    out_context->next_offset = GetInteger(address) + page_size;
-
-    return true;
+    return this->ContinueTraversal(out_entry, out_context);
 }
 
 bool PageTable::ContinueTraversal(TraversalEntry* out_entry, TraversalContext* context) const {
@@ -41,6 +23,12 @@ bool PageTable::ContinueTraversal(TraversalEntry* out_entry, TraversalContext* c
     out_entry->phys_addr = 0;
     out_entry->block_size = page_size;
 
+    // Regardless of whether the page was mapped, advance on exit.
+    SCOPE_EXIT({
+        context->next_page += 1;
+        context->next_offset += page_size;
+    });
+
     // Validate that we can read the actual entry.
     const auto page = context->next_page;
     if (page >= backing_addr.size()) {
@@ -55,8 +43,6 @@ bool PageTable::ContinueTraversal(TraversalEntry* out_entry, TraversalContext* c
 
     // Populate the results.
     out_entry->phys_addr = phys_addr + context->next_offset;
-    context->next_page = page + 1;
-    context->next_offset += page_size;
 
     return true;
 }

src/core/CMakeLists.txt

@@ -37,6 +37,8 @@ add_library(core STATIC
     debugger/gdbstub_arch.h
     debugger/gdbstub.cpp
     debugger/gdbstub.h
+    device_memory_manager.h
+    device_memory_manager.inc
     device_memory.cpp
     device_memory.h
     file_sys/fssystem/fs_i_storage.h
@@ -183,22 +185,6 @@ add_library(core STATIC
     frontend/framebuffer_layout.cpp
     frontend/framebuffer_layout.h
     frontend/graphics_context.h
-    hid/emulated_console.cpp
-    hid/emulated_console.h
-    hid/emulated_controller.cpp
-    hid/emulated_controller.h
-    hid/emulated_devices.cpp
-    hid/emulated_devices.h
-    hid/hid_core.cpp
-    hid/hid_core.h
-    hid/hid_types.h
-    hid/input_converter.cpp
-    hid/input_converter.h
-    hid/input_interpreter.cpp
-    hid/input_interpreter.h
-    hid/irs_types.h
-    hid/motion_input.cpp
-    hid/motion_input.h
     hle/api_version.h
     hle/ipc.h
     hle/kernel/board/nintendo/nx/k_memory_layout.cpp
@@ -506,6 +492,10 @@ add_library(core STATIC
     hle/service/filesystem/fsp_pr.h
     hle/service/filesystem/fsp_srv.cpp
     hle/service/filesystem/fsp_srv.h
+    hle/service/filesystem/romfs_controller.cpp
+    hle/service/filesystem/romfs_controller.h
+    hle/service/filesystem/save_data_controller.cpp
+    hle/service/filesystem/save_data_controller.h
     hle/service/fgm/fgm.cpp
     hle/service/fgm/fgm.h
     hle/service/friend/friend.cpp
@@ -531,90 +521,16 @@ add_library(core STATIC
     hle/service/hid/hid.h
     hle/service/hid/hid_debug_server.cpp
     hle/service/hid/hid_debug_server.h
-    hle/service/hid/hid_firmware_settings.cpp
-    hle/service/hid/hid_firmware_settings.h
     hle/service/hid/hid_server.cpp
     hle/service/hid/hid_server.h
     hle/service/hid/hid_system_server.cpp
     hle/service/hid/hid_system_server.h
-    hle/service/hid/hid_util.h
     hle/service/hid/hidbus.cpp
     hle/service/hid/hidbus.h
     hle/service/hid/irs.cpp
     hle/service/hid/irs.h
-    hle/service/hid/irs_ring_lifo.h
-    hle/service/hid/resource_manager.cpp
-    hle/service/hid/resource_manager.h
-    hle/service/hid/ring_lifo.h
     hle/service/hid/xcd.cpp
     hle/service/hid/xcd.h
-    hle/service/hid/errors.h
-    hle/service/hid/controllers/types/debug_pad_types.h
-    hle/service/hid/controllers/types/keyboard_types.h
-    hle/service/hid/controllers/types/mouse_types.h
-    hle/service/hid/controllers/types/npad_types.h
-    hle/service/hid/controllers/types/shared_memory_format.h
-    hle/service/hid/controllers/types/touch_types.h
-    hle/service/hid/controllers/applet_resource.cpp
-    hle/service/hid/controllers/applet_resource.h
-    hle/service/hid/controllers/capture_button.cpp
-    hle/service/hid/controllers/capture_button.h
-    hle/service/hid/controllers/console_six_axis.cpp
-    hle/service/hid/controllers/console_six_axis.h
-    hle/service/hid/controllers/controller_base.cpp
-    hle/service/hid/controllers/controller_base.h
-    hle/service/hid/controllers/debug_mouse.cpp
-    hle/service/hid/controllers/debug_mouse.h
-    hle/service/hid/controllers/debug_pad.cpp
-    hle/service/hid/controllers/debug_pad.h
-    hle/service/hid/controllers/digitizer.cpp
-    hle/service/hid/controllers/digitizer.h
-    hle/service/hid/controllers/gesture.cpp
-    hle/service/hid/controllers/gesture.h
-    hle/service/hid/controllers/home_button.cpp
-    hle/service/hid/controllers/home_button.h
-    hle/service/hid/controllers/keyboard.cpp
-    hle/service/hid/controllers/keyboard.h
-    hle/service/hid/controllers/mouse.cpp
-    hle/service/hid/controllers/mouse.h
-    hle/service/hid/controllers/npad.cpp
-    hle/service/hid/controllers/npad.h
-    hle/service/hid/controllers/palma.cpp
-    hle/service/hid/controllers/palma.h
-    hle/service/hid/controllers/seven_six_axis.cpp
-    hle/service/hid/controllers/seven_six_axis.h
-    hle/service/hid/controllers/shared_memory_holder.cpp
-    hle/service/hid/controllers/shared_memory_holder.h
-    hle/service/hid/controllers/six_axis.cpp
-    hle/service/hid/controllers/six_axis.h
-    hle/service/hid/controllers/sleep_button.cpp
-    hle/service/hid/controllers/sleep_button.h
-    hle/service/hid/controllers/touchscreen.cpp
-    hle/service/hid/controllers/touchscreen.h
-    hle/service/hid/controllers/unique_pad.cpp
-    hle/service/hid/controllers/unique_pad.h
-    hle/service/hid/hidbus/hidbus_base.cpp
-    hle/service/hid/hidbus/hidbus_base.h
-    hle/service/hid/hidbus/ringcon.cpp
-    hle/service/hid/hidbus/ringcon.h
-    hle/service/hid/hidbus/starlink.cpp
-    hle/service/hid/hidbus/starlink.h
-    hle/service/hid/hidbus/stubbed.cpp
-    hle/service/hid/hidbus/stubbed.h
-    hle/service/hid/irsensor/clustering_processor.cpp
-    hle/service/hid/irsensor/clustering_processor.h
-    hle/service/hid/irsensor/image_transfer_processor.cpp
-    hle/service/hid/irsensor/image_transfer_processor.h
-    hle/service/hid/irsensor/ir_led_processor.cpp
-    hle/service/hid/irsensor/ir_led_processor.h
-    hle/service/hid/irsensor/moment_processor.cpp
-    hle/service/hid/irsensor/moment_processor.h
-    hle/service/hid/irsensor/pointing_processor.cpp
-    hle/service/hid/irsensor/pointing_processor.h
-    hle/service/hid/irsensor/processor_base.cpp
-    hle/service/hid/irsensor/processor_base.h
-    hle/service/hid/irsensor/tera_plugin_processor.cpp
-    hle/service/hid/irsensor/tera_plugin_processor.h
     hle/service/lbl/lbl.cpp
     hle/service/lbl/lbl.h
     hle/service/ldn/lan_discovery.cpp
@@ -695,6 +611,8 @@ add_library(core STATIC
     hle/service/ns/pdm_qry.h
     hle/service/nvdrv/core/container.cpp
     hle/service/nvdrv/core/container.h
+    hle/service/nvdrv/core/heap_mapper.cpp
+    hle/service/nvdrv/core/heap_mapper.h
     hle/service/nvdrv/core/nvmap.cpp
     hle/service/nvdrv/core/nvmap.h
     hle/service/nvdrv/core/syncpoint_manager.cpp
@@ -798,24 +716,24 @@ add_library(core STATIC
     hle/service/server_manager.h
     hle/service/service.cpp
     hle/service/service.h
-    hle/service/set/set.cpp
-    hle/service/set/set.h
     hle/service/set/appln_settings.cpp
     hle/service/set/appln_settings.h
     hle/service/set/device_settings.cpp
     hle/service/set/device_settings.h
+    hle/service/set/factory_settings_server.cpp
+    hle/service/set/factory_settings_server.h
+    hle/service/set/firmware_debug_settings_server.cpp
+    hle/service/set/firmware_debug_settings_server.h
     hle/service/set/private_settings.cpp
     hle/service/set/private_settings.h
-    hle/service/set/set_cal.cpp
-    hle/service/set/set_cal.h
-    hle/service/set/set_fd.cpp
-    hle/service/set/set_fd.h
-    hle/service/set/set_sys.cpp
-    hle/service/set/set_sys.h
     hle/service/set/settings.cpp
     hle/service/set/settings.h
+    hle/service/set/settings_server.cpp
+    hle/service/set/settings_server.h
     hle/service/set/system_settings.cpp
     hle/service/set/system_settings.h
+    hle/service/set/system_settings_server.cpp
+    hle/service/set/system_settings_server.h
     hle/service/sm/sm.cpp
     hle/service/sm/sm.h
     hle/service/sm/sm_controller.cpp
@@ -955,7 +873,7 @@ endif()
 
 create_target_directory_groups(core)
 
-target_link_libraries(core PUBLIC common PRIVATE audio_core network video_core nx_tzdb)
+target_link_libraries(core PUBLIC common PRIVATE audio_core hid_core network video_core nx_tzdb)
 target_link_libraries(core PUBLIC Boost::headers PRIVATE fmt::fmt nlohmann_json::nlohmann_json mbedtls RenderDoc::API)
 if (MINGW)
     target_link_libraries(core PRIVATE ${MSWSOCK_LIBRARY})

src/core/core.cpp

@@ -28,7 +28,7 @@
 #include "core/file_sys/savedata_factory.h"
 #include "core/file_sys/vfs_concat.h"
 #include "core/file_sys/vfs_real.h"
-#include "core/hid/hid_core.h"
+#include "core/gpu_dirty_memory_manager.h"
 #include "core/hle/kernel/k_memory_manager.h"
 #include "core/hle/kernel/k_process.h"
 #include "core/hle/kernel/k_resource_limit.h"
@@ -52,6 +52,7 @@
 #include "core/telemetry_session.h"
 #include "core/tools/freezer.h"
 #include "core/tools/renderdoc.h"
+#include "hid_core/hid_core.h"
 #include "network/network.h"
 #include "video_core/host1x/host1x.h"
 #include "video_core/renderer_base.h"
@@ -413,6 +414,7 @@ struct System::Impl {
         kernel.ShutdownCores();
         services.reset();
         service_manager.reset();
+        fs_controller.Reset();
         cheat_engine.reset();
         telemetry_session.reset();
         time_manager.Shutdown();
@@ -564,6 +566,9 @@ struct System::Impl {
     std::array<u64, Core::Hardware::NUM_CPU_CORES> dynarmic_ticks{};
     std::array<MicroProfileToken, Core::Hardware::NUM_CPU_CORES> microprofile_cpu{};
 
+    std::array<Core::GPUDirtyMemoryManager, Core::Hardware::NUM_CPU_CORES>
+        gpu_dirty_memory_managers;
+
     std::deque<std::vector<u8>> user_channel;
 };
 
@@ -650,8 +655,14 @@ size_t System::GetCurrentHostThreadID() const {
     return impl->kernel.GetCurrentHostThreadID();
 }
 
-void System::GatherGPUDirtyMemory(std::function<void(VAddr, size_t)>& callback) {
-    return this->ApplicationProcess()->GatherGPUDirtyMemory(callback);
+std::span<GPUDirtyMemoryManager> System::GetGPUDirtyMemoryManager() {
+    return impl->gpu_dirty_memory_managers;
+}
+
+void System::GatherGPUDirtyMemory(std::function<void(PAddr, size_t)>& callback) {
+    for (auto& manager : impl->gpu_dirty_memory_managers) {
+        manager.Gather(callback);
+    }
 }
 
 PerfStatsResults System::GetAndResetPerfStats() {

src/core/core.h

@@ -8,6 +8,7 @@
 #include <functional>
 #include <memory>
 #include <mutex>
+#include <span>
 #include <string>
 #include <vector>
 
@@ -116,6 +117,7 @@ class CpuManager;
 class Debugger;
 class DeviceMemory;
 class ExclusiveMonitor;
+class GPUDirtyMemoryManager;
 class PerfStats;
 class Reporter;
 class SpeedLimiter;
@@ -224,7 +226,9 @@ public:
     /// Prepare the core emulation for a reschedule
     void PrepareReschedule(u32 core_index);
 
-    void GatherGPUDirtyMemory(std::function<void(VAddr, size_t)>& callback);
+    std::span<GPUDirtyMemoryManager> GetGPUDirtyMemoryManager();
+
+    void GatherGPUDirtyMemory(std::function<void(PAddr, size_t)>& callback);
 
     [[nodiscard]] size_t GetCurrentHostThreadID() const;
 

src/core/cpu_manager.h

@@ -64,7 +64,7 @@ public:
         return [this] { ShutdownThreadFunction(); };
     }
 
-    void PreemptSingleCore(bool from_running_enviroment = true);
+    void PreemptSingleCore(bool from_running_environment = true);
 
     std::size_t CurrentCore() const {
         return current_core.load();

src/core/debugger/debugger.cpp

@@ -114,7 +114,7 @@ public:
     }
 
     Kernel::KThread* GetActiveThread() override {
-        return state->active_thread;
+        return state->active_thread.GetPointerUnsafe();
     }
 
 private:
@@ -147,11 +147,14 @@ private:
 
         std::scoped_lock lk{connection_lock};
 
+        // Find the process we are going to debug.
+        SetDebugProcess();
+
         // Ensure everything is stopped.
         PauseEmulation();
 
         // Set up the new frontend.
-        frontend = std::make_unique<GDBStub>(*this, system);
+        frontend = std::make_unique<GDBStub>(*this, system, debug_process.GetPointerUnsafe());
 
         // Set the new state. This will tear down any existing state.
         state = ConnectionState{
@@ -194,15 +197,20 @@ private:
             UpdateActiveThread();
 
             if (state->info.type == SignalType::Watchpoint) {
-                frontend->Watchpoint(state->active_thread, *state->info.watchpoint);
+                frontend->Watchpoint(std::addressof(*state->active_thread),
+                                     *state->info.watchpoint);
             } else {
-                frontend->Stopped(state->active_thread);
+                frontend->Stopped(std::addressof(*state->active_thread));
             }
 
             break;
         case SignalType::ShuttingDown:
             frontend->ShuttingDown();
 
+            // Release members.
+            state->active_thread.Reset(nullptr);
+            debug_process.Reset(nullptr);
+
             // Wait for emulation to shut down gracefully now.
             state->signal_pipe.close();
             state->client_socket.shutdown(boost::asio::socket_base::shutdown_both);
@@ -222,7 +230,7 @@ private:
                 stopped = true;
                 PauseEmulation();
                 UpdateActiveThread();
-                frontend->Stopped(state->active_thread);
+                frontend->Stopped(state->active_thread.GetPointerUnsafe());
                 break;
             }
             case DebuggerAction::Continue:
@@ -232,7 +240,7 @@ private:
                 MarkResumed([&] {
                     state->active_thread->SetStepState(Kernel::StepState::StepPending);
                     state->active_thread->Resume(Kernel::SuspendType::Debug);
-                    ResumeEmulation(state->active_thread);
+                    ResumeEmulation(state->active_thread.GetPointerUnsafe());
                 });
                 break;
             case DebuggerAction::StepThreadLocked: {
@@ -255,6 +263,7 @@ private:
     }
 
     void PauseEmulation() {
+        Kernel::KScopedLightLock ll{debug_process->GetListLock()};
         Kernel::KScopedSchedulerLock sl{system.Kernel()};
 
         // Put all threads to sleep on next scheduler round.
@@ -264,6 +273,9 @@ private:
     }
 
     void ResumeEmulation(Kernel::KThread* except = nullptr) {
+        Kernel::KScopedLightLock ll{debug_process->GetListLock()};
+        Kernel::KScopedSchedulerLock sl{system.Kernel()};
+
         // Wake up all threads.
         for (auto& thread : ThreadList()) {
             if (std::addressof(thread) == except) {
@@ -277,15 +289,16 @@ private:
 
     template <typename Callback>
     void MarkResumed(Callback&& cb) {
-        Kernel::KScopedSchedulerLock sl{system.Kernel()};
         stopped = false;
         cb();
     }
 
     void UpdateActiveThread() {
+        Kernel::KScopedLightLock ll{debug_process->GetListLock()};
+
         auto& threads{ThreadList()};
         for (auto& thread : threads) {
-            if (std::addressof(thread) == state->active_thread) {
+            if (std::addressof(thread) == state->active_thread.GetPointerUnsafe()) {
                 // Thread is still alive, no need to update.
                 return;
             }
@@ -293,12 +306,18 @@ private:
         state->active_thread = std::addressof(threads.front());
     }
 
+private:
+    void SetDebugProcess() {
+        debug_process = std::move(system.Kernel().GetProcessList().back());
+    }
+
     Kernel::KProcess::ThreadList& ThreadList() {
-        return system.ApplicationProcess()->GetThreadList();
+        return debug_process->GetThreadList();
     }
 
 private:
     System& system;
+    Kernel::KScopedAutoObject<Kernel::KProcess> debug_process;
     std::unique_ptr<DebuggerFrontend> frontend;
 
     boost::asio::io_context io_context;
@@ -310,7 +329,7 @@ private:
         boost::process::async_pipe signal_pipe;
 
         SignalInfo info;
-        Kernel::KThread* active_thread;
+        Kernel::KScopedAutoObject<Kernel::KThread> active_thread;
         std::array<u8, 4096> client_data;
         bool pipe_data;
     };

src/core/debugger/gdbstub.cpp

@@ -108,9 +108,9 @@ static std::string EscapeXML(std::string_view data) {
     return escaped;
 }
 
-GDBStub::GDBStub(DebuggerBackend& backend_, Core::System& system_)
-    : DebuggerFrontend(backend_), system{system_} {
-    if (system.ApplicationProcess()->Is64Bit()) {
+GDBStub::GDBStub(DebuggerBackend& backend_, Core::System& system_, Kernel::KProcess* debug_process_)
+    : DebuggerFrontend(backend_), system{system_}, debug_process{debug_process_} {
+    if (GetProcess()->Is64Bit()) {
         arch = std::make_unique<GDBStubA64>();
     } else {
         arch = std::make_unique<GDBStubA32>();
@@ -276,7 +276,7 @@ void GDBStub::ExecuteCommand(std::string_view packet, std::vector<DebuggerAction
         const size_t size{static_cast<size_t>(strtoll(command.data() + sep, nullptr, 16))};
 
         std::vector<u8> mem(size);
-        if (system.ApplicationMemory().ReadBlock(addr, mem.data(), size)) {
+        if (GetMemory().ReadBlock(addr, mem.data(), size)) {
             // Restore any bytes belonging to replaced instructions.
             auto it = replaced_instructions.lower_bound(addr);
             for (; it != replaced_instructions.end() && it->first < addr + size; it++) {
@@ -310,8 +310,8 @@ void GDBStub::ExecuteCommand(std::string_view packet, std::vector<DebuggerAction
         const auto mem_substr{std::string_view(command).substr(mem_sep)};
         const auto mem{Common::HexStringToVector(mem_substr, false)};
 
-        if (system.ApplicationMemory().WriteBlock(addr, mem.data(), size)) {
-            Core::InvalidateInstructionCacheRange(system.ApplicationProcess(), addr, size);
+        if (GetMemory().WriteBlock(addr, mem.data(), size)) {
+            Core::InvalidateInstructionCacheRange(GetProcess(), addr, size);
             SendReply(GDB_STUB_REPLY_OK);
         } else {
             SendReply(GDB_STUB_REPLY_ERR);
@@ -353,7 +353,7 @@ void GDBStub::HandleBreakpointInsert(std::string_view command) {
     const size_t addr{static_cast<size_t>(strtoll(command.data() + addr_sep, nullptr, 16))};
     const size_t size{static_cast<size_t>(strtoll(command.data() + size_sep, nullptr, 16))};
 
-    if (!system.ApplicationMemory().IsValidVirtualAddressRange(addr, size)) {
+    if (!GetMemory().IsValidVirtualAddressRange(addr, size)) {
         SendReply(GDB_STUB_REPLY_ERR);
         return;
     }
@@ -362,22 +362,20 @@ void GDBStub::HandleBreakpointInsert(std::string_view command) {
 
     switch (type) {
     case BreakpointType::Software:
-        replaced_instructions[addr] = system.ApplicationMemory().Read32(addr);
-        system.ApplicationMemory().Write32(addr, arch->BreakpointInstruction());
-        Core::InvalidateInstructionCacheRange(system.ApplicationProcess(), addr, sizeof(u32));
+        replaced_instructions[addr] = GetMemory().Read32(addr);
+        GetMemory().Write32(addr, arch->BreakpointInstruction());
+        Core::InvalidateInstructionCacheRange(GetProcess(), addr, sizeof(u32));
         success = true;
         break;
     case BreakpointType::WriteWatch:
-        success = system.ApplicationProcess()->InsertWatchpoint(addr, size,
-                                                                Kernel::DebugWatchpointType::Write);
+        success = GetProcess()->InsertWatchpoint(addr, size, Kernel::DebugWatchpointType::Write);
         break;
     case BreakpointType::ReadWatch:
-        success = system.ApplicationProcess()->InsertWatchpoint(addr, size,
-                                                                Kernel::DebugWatchpointType::Read);
+        success = GetProcess()->InsertWatchpoint(addr, size, Kernel::DebugWatchpointType::Read);
         break;
     case BreakpointType::AccessWatch:
-        success = system.ApplicationProcess()->InsertWatchpoint(
-            addr, size, Kernel::DebugWatchpointType::ReadOrWrite);
+        success =
+            GetProcess()->InsertWatchpoint(addr, size, Kernel::DebugWatchpointType::ReadOrWrite);
         break;
     case BreakpointType::Hardware:
     default:
@@ -400,7 +398,7 @@ void GDBStub::HandleBreakpointRemove(std::string_view command) {
     const size_t addr{static_cast<size_t>(strtoll(command.data() + addr_sep, nullptr, 16))};
     const size_t size{static_cast<size_t>(strtoll(command.data() + size_sep, nullptr, 16))};
 
-    if (!system.ApplicationMemory().IsValidVirtualAddressRange(addr, size)) {
+    if (!GetMemory().IsValidVirtualAddressRange(addr, size)) {
         SendReply(GDB_STUB_REPLY_ERR);
         return;
     }
@@ -411,24 +409,22 @@ void GDBStub::HandleBreakpointRemove(std::string_view command) {
     case BreakpointType::Software: {
         const auto orig_insn{replaced_instructions.find(addr)};
         if (orig_insn != replaced_instructions.end()) {
-            system.ApplicationMemory().Write32(addr, orig_insn->second);
-            Core::InvalidateInstructionCacheRange(system.ApplicationProcess(), addr, sizeof(u32));
+            GetMemory().Write32(addr, orig_insn->second);
+            Core::InvalidateInstructionCacheRange(GetProcess(), addr, sizeof(u32));
             replaced_instructions.erase(addr);
             success = true;
         }
         break;
     }
     case BreakpointType::WriteWatch:
-        success = system.ApplicationProcess()->RemoveWatchpoint(addr, size,
-                                                                Kernel::DebugWatchpointType::Write);
+        success = GetProcess()->RemoveWatchpoint(addr, size, Kernel::DebugWatchpointType::Write);
         break;
     case BreakpointType::ReadWatch:
-        success = system.ApplicationProcess()->RemoveWatchpoint(addr, size,
-                                                                Kernel::DebugWatchpointType::Read);
+        success = GetProcess()->RemoveWatchpoint(addr, size, Kernel::DebugWatchpointType::Read);
         break;
     case BreakpointType::AccessWatch:
-        success = system.ApplicationProcess()->RemoveWatchpoint(
-            addr, size, Kernel::DebugWatchpointType::ReadOrWrite);
+        success =
+            GetProcess()->RemoveWatchpoint(addr, size, Kernel::DebugWatchpointType::ReadOrWrite);
         break;
     case BreakpointType::Hardware:
     default:
@@ -466,10 +462,10 @@ void GDBStub::HandleQuery(std::string_view command) {
         const auto target_xml{arch->GetTargetXML()};
         SendReply(PaginateBuffer(target_xml, command.substr(30)));
     } else if (command.starts_with("Offsets")) {
-        const auto main_offset = Core::FindMainModuleEntrypoint(system.ApplicationProcess());
+        const auto main_offset = Core::FindMainModuleEntrypoint(GetProcess());
         SendReply(fmt::format("TextSeg={:x}", GetInteger(main_offset)));
     } else if (command.starts_with("Xfer:libraries:read::")) {
-        auto modules = Core::FindModules(system.ApplicationProcess());
+        auto modules = Core::FindModules(GetProcess());
 
         std::string buffer;
         buffer += R"(<?xml version="1.0"?>)";
@@ -483,7 +479,7 @@ void GDBStub::HandleQuery(std::string_view command) {
         SendReply(PaginateBuffer(buffer, command.substr(21)));
     } else if (command.starts_with("fThreadInfo")) {
         // beginning of list
-        const auto& threads = system.ApplicationProcess()->GetThreadList();
+        const auto& threads = GetProcess()->GetThreadList();
         std::vector<std::string> thread_ids;
         for (const auto& thread : threads) {
             thread_ids.push_back(fmt::format("{:x}", thread.GetThreadId()));
@@ -497,7 +493,7 @@ void GDBStub::HandleQuery(std::string_view command) {
         buffer += R"(<?xml version="1.0"?>)";
         buffer += "<threads>";
 
-        const auto& threads = system.ApplicationProcess()->GetThreadList();
+        const auto& threads = GetProcess()->GetThreadList();
         for (const auto& thread : threads) {
             auto thread_name{Core::GetThreadName(&thread)};
             if (!thread_name) {
@@ -559,28 +555,28 @@ void GDBStub::HandleVCont(std::string_view command, std::vector<DebuggerAction>&
 }
 
 constexpr std::array<std::pair<const char*, Kernel::Svc::MemoryState>, 22> MemoryStateNames{{
-    {"----- Free -----", Kernel::Svc::MemoryState::Free},
-    {"Io              ", Kernel::Svc::MemoryState::Io},
-    {"Static          ", Kernel::Svc::MemoryState::Static},
-    {"Code            ", Kernel::Svc::MemoryState::Code},
-    {"CodeData        ", Kernel::Svc::MemoryState::CodeData},
-    {"Normal          ", Kernel::Svc::MemoryState::Normal},
-    {"Shared          ", Kernel::Svc::MemoryState::Shared},
-    {"AliasCode       ", Kernel::Svc::MemoryState::AliasCode},
-    {"AliasCodeData   ", Kernel::Svc::MemoryState::AliasCodeData},
-    {"Ipc             ", Kernel::Svc::MemoryState::Ipc},
-    {"Stack           ", Kernel::Svc::MemoryState::Stack},
-    {"ThreadLocal     ", Kernel::Svc::MemoryState::ThreadLocal},
-    {"Transfered      ", Kernel::Svc::MemoryState::Transfered},
-    {"SharedTransfered", Kernel::Svc::MemoryState::SharedTransfered},
-    {"SharedCode      ", Kernel::Svc::MemoryState::SharedCode},
-    {"Inaccessible    ", Kernel::Svc::MemoryState::Inaccessible},
-    {"NonSecureIpc    ", Kernel::Svc::MemoryState::NonSecureIpc},
-    {"NonDeviceIpc    ", Kernel::Svc::MemoryState::NonDeviceIpc},
-    {"Kernel          ", Kernel::Svc::MemoryState::Kernel},
-    {"GeneratedCode   ", Kernel::Svc::MemoryState::GeneratedCode},
-    {"CodeOut         ", Kernel::Svc::MemoryState::CodeOut},
-    {"Coverage        ", Kernel::Svc::MemoryState::Coverage},
+    {"----- Free ------", Kernel::Svc::MemoryState::Free},
+    {"Io               ", Kernel::Svc::MemoryState::Io},
+    {"Static           ", Kernel::Svc::MemoryState::Static},
+    {"Code             ", Kernel::Svc::MemoryState::Code},
+    {"CodeData         ", Kernel::Svc::MemoryState::CodeData},
+    {"Normal           ", Kernel::Svc::MemoryState::Normal},
+    {"Shared           ", Kernel::Svc::MemoryState::Shared},
+    {"AliasCode        ", Kernel::Svc::MemoryState::AliasCode},
+    {"AliasCodeData    ", Kernel::Svc::MemoryState::AliasCodeData},
+    {"Ipc              ", Kernel::Svc::MemoryState::Ipc},
+    {"Stack            ", Kernel::Svc::MemoryState::Stack},
+    {"ThreadLocal      ", Kernel::Svc::MemoryState::ThreadLocal},
+    {"Transferred      ", Kernel::Svc::MemoryState::Transferred},
+    {"SharedTransferred", Kernel::Svc::MemoryState::SharedTransferred},
+    {"SharedCode       ", Kernel::Svc::MemoryState::SharedCode},
+    {"Inaccessible     ", Kernel::Svc::MemoryState::Inaccessible},
+    {"NonSecureIpc     ", Kernel::Svc::MemoryState::NonSecureIpc},
+    {"NonDeviceIpc     ", Kernel::Svc::MemoryState::NonDeviceIpc},
+    {"Kernel           ", Kernel::Svc::MemoryState::Kernel},
+    {"GeneratedCode    ", Kernel::Svc::MemoryState::GeneratedCode},
+    {"CodeOut          ", Kernel::Svc::MemoryState::CodeOut},
+    {"Coverage         ", Kernel::Svc::MemoryState::Coverage},
 }};
 
 static constexpr const char* GetMemoryStateName(Kernel::Svc::MemoryState state) {
@@ -613,7 +609,7 @@ void GDBStub::HandleRcmd(const std::vector<u8>& command) {
     std::string_view command_str{reinterpret_cast<const char*>(&command[0]), command.size()};
     std::string reply;
 
-    auto* process = system.ApplicationProcess();
+    auto* process = GetProcess();
     auto& page_table = process->GetPageTable();
 
     const char* commands = "Commands:\n"
@@ -714,7 +710,7 @@ void GDBStub::HandleRcmd(const std::vector<u8>& command) {
 }
 
 Kernel::KThread* GDBStub::GetThreadByID(u64 thread_id) {
-    auto& threads{system.ApplicationProcess()->GetThreadList()};
+    auto& threads{GetProcess()->GetThreadList()};
     for (auto& thread : threads) {
         if (thread.GetThreadId() == thread_id) {
             return std::addressof(thread);
@@ -783,4 +779,12 @@ void GDBStub::SendStatus(char status) {
     backend.WriteToClient(buf);
 }
 
+Kernel::KProcess* GDBStub::GetProcess() {
+    return debug_process;
+}
+
+Core::Memory::Memory& GDBStub::GetMemory() {
+    return GetProcess()->GetMemory();
+}
+
 } // namespace Core

src/core/debugger/gdbstub.h

@@ -12,13 +12,22 @@
 #include "core/debugger/debugger_interface.h"
 #include "core/debugger/gdbstub_arch.h"
 
+namespace Kernel {
+class KProcess;
+}
+
+namespace Core::Memory {
+class Memory;
+}
+
 namespace Core {
 
 class System;
 
 class GDBStub : public DebuggerFrontend {
 public:
-    explicit GDBStub(DebuggerBackend& backend, Core::System& system);
+    explicit GDBStub(DebuggerBackend& backend, Core::System& system,
+                     Kernel::KProcess* debug_process);
     ~GDBStub() override;
 
     void Connected() override;
@@ -42,8 +51,12 @@ private:
     void SendReply(std::string_view data);
     void SendStatus(char status);
 
+    Kernel::KProcess* GetProcess();
+    Core::Memory::Memory& GetMemory();
+
 private:
     Core::System& system;
+    Kernel::KProcess* debug_process;
     std::unique_ptr<GDBStubArch> arch;
     std::vector<char> current_command;
     std::map<VAddr, u32> replaced_instructions;

src/core/device_memory.h

@@ -31,6 +31,12 @@ public:
                DramMemoryMap::Base;
     }
 
+    template <typename T>
+    PAddr GetRawPhysicalAddr(const T* ptr) const {
+        return static_cast<PAddr>(reinterpret_cast<uintptr_t>(ptr) -
+                                  reinterpret_cast<uintptr_t>(buffer.BackingBasePointer()));
+    }
+
     template <typename T>
     T* GetPointer(Common::PhysicalAddress addr) {
         return reinterpret_cast<T*>(buffer.BackingBasePointer() +
@@ -43,6 +49,16 @@ public:
                                     (GetInteger(addr) - DramMemoryMap::Base));
     }
 
+    template <typename T>
+    T* GetPointerFromRaw(PAddr addr) {
+        return reinterpret_cast<T*>(buffer.BackingBasePointer() + addr);
+    }
+
+    template <typename T>
+    const T* GetPointerFromRaw(PAddr addr) const {
+        return reinterpret_cast<T*>(buffer.BackingBasePointer() + addr);
+    }
+
     Common::HostMemory buffer;
 };
 

src/core/device_memory_manager.h

@@ -0,0 +1,208 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <array>
+#include <atomic>
+#include <deque>
+#include <memory>
+#include <mutex>
+
+#include "common/common_types.h"
+#include "common/scratch_buffer.h"
+#include "common/virtual_buffer.h"
+
+namespace Core {
+
+constexpr size_t DEVICE_PAGEBITS = 12ULL;
+constexpr size_t DEVICE_PAGESIZE = 1ULL << DEVICE_PAGEBITS;
+constexpr size_t DEVICE_PAGEMASK = DEVICE_PAGESIZE - 1ULL;
+
+class DeviceMemory;
+
+namespace Memory {
+class Memory;
+}
+
+template <typename DTraits>
+struct DeviceMemoryManagerAllocator;
+
+template <typename Traits>
+class DeviceMemoryManager {
+    using DeviceInterface = typename Traits::DeviceInterface;
+    using DeviceMethods = typename Traits::DeviceMethods;
+
+public:
+    DeviceMemoryManager(const DeviceMemory& device_memory);
+    ~DeviceMemoryManager();
+
+    void BindInterface(DeviceInterface* device_inter);
+
+    DAddr Allocate(size_t size);
+    void AllocateFixed(DAddr start, size_t size);
+    void Free(DAddr start, size_t size);
+
+    void Map(DAddr address, VAddr virtual_address, size_t size, size_t process_id,
+             bool track = false);
+
+    void Unmap(DAddr address, size_t size);
+
+    void TrackContinuityImpl(DAddr address, VAddr virtual_address, size_t size, size_t process_id);
+    void TrackContinuity(DAddr address, VAddr virtual_address, size_t size, size_t process_id) {
+        std::scoped_lock lk(mapping_guard);
+        TrackContinuityImpl(address, virtual_address, size, process_id);
+    }
+
+    // Write / Read
+    template <typename T>
+    T* GetPointer(DAddr address);
+
+    template <typename T>
+    const T* GetPointer(DAddr address) const;
+
+    template <typename Func>
+    void ApplyOpOnPAddr(PAddr address, Common::ScratchBuffer<u32>& buffer, Func&& operation) {
+        DAddr subbits = static_cast<DAddr>(address & page_mask);
+        const u32 base = compressed_device_addr[(address >> page_bits)];
+        if ((base >> MULTI_FLAG_BITS) == 0) [[likely]] {
+            const DAddr d_address = (static_cast<DAddr>(base) << page_bits) + subbits;
+            operation(d_address);
+            return;
+        }
+        InnerGatherDeviceAddresses(buffer, address);
+        for (u32 value : buffer) {
+            operation((static_cast<DAddr>(value) << page_bits) + subbits);
+        }
+    }
+
+    template <typename Func>
+    void ApplyOpOnPointer(const u8* p, Common::ScratchBuffer<u32>& buffer, Func&& operation) {
+        PAddr address = GetRawPhysicalAddr<u8>(p);
+        ApplyOpOnPAddr(address, buffer, operation);
+    }
+
+    PAddr GetPhysicalRawAddressFromDAddr(DAddr address) const {
+        PAddr subbits = static_cast<PAddr>(address & page_mask);
+        auto paddr = compressed_physical_ptr[(address >> page_bits)];
+        if (paddr == 0) {
+            return 0;
+        }
+        return (static_cast<PAddr>(paddr - 1) << page_bits) + subbits;
+    }
+
+    template <typename T>
+    void Write(DAddr address, T value);
+
+    template <typename T>
+    T Read(DAddr address) const;
+
+    u8* GetSpan(const DAddr src_addr, const std::size_t size);
+    const u8* GetSpan(const DAddr src_addr, const std::size_t size) const;
+
+    void ReadBlock(DAddr address, void* dest_pointer, size_t size);
+    void ReadBlockUnsafe(DAddr address, void* dest_pointer, size_t size);
+    void WriteBlock(DAddr address, const void* src_pointer, size_t size);
+    void WriteBlockUnsafe(DAddr address, const void* src_pointer, size_t size);
+
+    size_t RegisterProcess(Memory::Memory* memory);
+    void UnregisterProcess(size_t id);
+
+    void UpdatePagesCachedCount(DAddr addr, size_t size, s32 delta);
+
+    static constexpr size_t AS_BITS = Traits::device_virtual_bits;
+
+private:
+    static constexpr size_t device_virtual_bits = Traits::device_virtual_bits;
+    static constexpr size_t device_as_size = 1ULL << device_virtual_bits;
+    static constexpr size_t physical_min_bits = 32;
+    static constexpr size_t physical_max_bits = 33;
+    static constexpr size_t page_bits = 12;
+    static constexpr size_t page_size = 1ULL << page_bits;
+    static constexpr size_t page_mask = page_size - 1ULL;
+    static constexpr u32 physical_address_base = 1U << page_bits;
+    static constexpr u32 MULTI_FLAG_BITS = 31;
+    static constexpr u32 MULTI_FLAG = 1U << MULTI_FLAG_BITS;
+    static constexpr u32 MULTI_MASK = ~MULTI_FLAG;
+
+    template <typename T>
+    T* GetPointerFromRaw(PAddr addr) {
+        return reinterpret_cast<T*>(physical_base + addr);
+    }
+
+    template <typename T>
+    const T* GetPointerFromRaw(PAddr addr) const {
+        return reinterpret_cast<T*>(physical_base + addr);
+    }
+
+    template <typename T>
+    PAddr GetRawPhysicalAddr(const T* ptr) const {
+        return static_cast<PAddr>(reinterpret_cast<uintptr_t>(ptr) - physical_base);
+    }
+
+    void WalkBlock(const DAddr addr, const std::size_t size, auto on_unmapped, auto on_memory,
+                   auto increment);
+
+    void InnerGatherDeviceAddresses(Common::ScratchBuffer<u32>& buffer, PAddr address);
+
+    std::unique_ptr<DeviceMemoryManagerAllocator<Traits>> impl;
+
+    const uintptr_t physical_base;
+    DeviceInterface* device_inter;
+    Common::VirtualBuffer<u32> compressed_physical_ptr;
+    Common::VirtualBuffer<u32> compressed_device_addr;
+    Common::VirtualBuffer<u32> continuity_tracker;
+
+    // Process memory interfaces
+
+    std::deque<size_t> id_pool;
+    std::deque<Memory::Memory*> registered_processes;
+
+    // Memory protection management
+
+    static constexpr size_t guest_max_as_bits = 39;
+    static constexpr size_t guest_as_size = 1ULL << guest_max_as_bits;
+    static constexpr size_t guest_mask = guest_as_size - 1ULL;
+    static constexpr size_t process_id_start_bit = guest_max_as_bits;
+
+    std::pair<size_t, VAddr> ExtractCPUBacking(size_t page_index) {
+        auto content = cpu_backing_address[page_index];
+        const VAddr address = content & guest_mask;
+        const size_t process_id = static_cast<size_t>(content >> process_id_start_bit);
+        return std::make_pair(process_id, address);
+    }
+
+    void InsertCPUBacking(size_t page_index, VAddr address, size_t process_id) {
+        cpu_backing_address[page_index] = address | (process_id << process_id_start_bit);
+    }
+
+    Common::VirtualBuffer<VAddr> cpu_backing_address;
+    static constexpr size_t subentries = 8 / sizeof(u8);
+    static constexpr size_t subentries_mask = subentries - 1;
+    class CounterEntry final {
+    public:
+        CounterEntry() = default;
+
+        std::atomic_uint8_t& Count(std::size_t page) {
+            return values[page & subentries_mask];
+        }
+
+        const std::atomic_uint8_t& Count(std::size_t page) const {
+            return values[page & subentries_mask];
+        }
+
+    private:
+        std::array<std::atomic_uint8_t, subentries> values{};
+    };
+    static_assert(sizeof(CounterEntry) == subentries * sizeof(u8),
+                  "CounterEntry should be 8 bytes!");
+
+    static constexpr size_t num_counter_entries =
+        (1ULL << (device_virtual_bits - page_bits)) / subentries;
+    using CachedPages = std::array<CounterEntry, num_counter_entries>;
+    std::unique_ptr<CachedPages> cached_pages;
+    std::mutex counter_guard;
+    std::mutex mapping_guard;
+};
+
+} // namespace Core

src/core/device_memory_manager.inc

@@ -0,0 +1,588 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <atomic>
+#include <limits>
+#include <memory>
+#include <type_traits>
+
+#include "common/address_space.h"
+#include "common/address_space.inc"
+#include "common/alignment.h"
+#include "common/assert.h"
+#include "common/div_ceil.h"
+#include "common/scope_exit.h"
+#include "common/settings.h"
+#include "core/device_memory.h"
+#include "core/device_memory_manager.h"
+#include "core/memory.h"
+
+namespace Core {
+
+namespace {
+
+class MultiAddressContainer {
+public:
+    MultiAddressContainer() = default;
+    ~MultiAddressContainer() = default;
+
+    void GatherValues(u32 start_entry, Common::ScratchBuffer<u32>& buffer) {
+        buffer.resize(8);
+        buffer.resize(0);
+        size_t index = 0;
+        const auto add_value = [&](u32 value) {
+            buffer[index] = value;
+            index++;
+            buffer.resize(index);
+        };
+
+        u32 iter_entry = start_entry;
+        Entry* current = &storage[iter_entry - 1];
+        add_value(current->value);
+        while (current->next_entry != 0) {
+            iter_entry = current->next_entry;
+            current = &storage[iter_entry - 1];
+            add_value(current->value);
+        }
+    }
+
+    u32 Register(u32 value) {
+        return RegisterImplementation(value);
+    }
+
+    void Register(u32 value, u32 start_entry) {
+        auto entry_id = RegisterImplementation(value);
+        u32 iter_entry = start_entry;
+        Entry* current = &storage[iter_entry - 1];
+        while (current->next_entry != 0) {
+            iter_entry = current->next_entry;
+            current = &storage[iter_entry - 1];
+        }
+        current->next_entry = entry_id;
+    }
+
+    std::pair<bool, u32> Unregister(u32 value, u32 start_entry) {
+        u32 iter_entry = start_entry;
+        Entry* previous{};
+        Entry* current = &storage[iter_entry - 1];
+        Entry* next{};
+        bool more_than_one_remaining = false;
+        u32 result_start{start_entry};
+        size_t count = 0;
+        while (current->value != value) {
+            count++;
+            previous = current;
+            iter_entry = current->next_entry;
+            current = &storage[iter_entry - 1];
+        }
+        // Find next
+        u32 next_entry = current->next_entry;
+        if (next_entry != 0) {
+            next = &storage[next_entry - 1];
+            more_than_one_remaining = next->next_entry != 0 || previous != nullptr;
+        }
+        if (previous) {
+            previous->next_entry = next_entry;
+        } else {
+            result_start = next_entry;
+        }
+        free_entries.emplace_back(iter_entry);
+        return std::make_pair(more_than_one_remaining || count > 1, result_start);
+    }
+
+    u32 ReleaseEntry(u32 start_entry) {
+        Entry* current = &storage[start_entry - 1];
+        free_entries.emplace_back(start_entry);
+        return current->value;
+    }
+
+private:
+    u32 RegisterImplementation(u32 value) {
+        auto entry_id = GetNewEntry();
+        auto& entry = storage[entry_id - 1];
+        entry.next_entry = 0;
+        entry.value = value;
+        return entry_id;
+    }
+    u32 GetNewEntry() {
+        if (!free_entries.empty()) {
+            u32 result = free_entries.front();
+            free_entries.pop_front();
+            return result;
+        }
+        storage.emplace_back();
+        u32 new_entry = static_cast<u32>(storage.size());
+        return new_entry;
+    }
+
+    struct Entry {
+        u32 next_entry{};
+        u32 value{};
+    };
+
+    std::deque<Entry> storage;
+    std::deque<u32> free_entries;
+};
+
+struct EmptyAllocator {
+    EmptyAllocator([[maybe_unused]] DAddr address) {}
+};
+
+} // namespace
+
+template <typename DTraits>
+struct DeviceMemoryManagerAllocator {
+    static constexpr size_t device_virtual_bits = DTraits::device_virtual_bits;
+    static constexpr DAddr first_address = 1ULL << Memory::YUZU_PAGEBITS;
+    static constexpr DAddr max_device_area = 1ULL << device_virtual_bits;
+
+    DeviceMemoryManagerAllocator() : main_allocator(first_address) {}
+
+    Common::FlatAllocator<DAddr, 0, device_virtual_bits> main_allocator;
+    MultiAddressContainer multi_dev_address;
+
+    /// Returns true when vaddr -> vaddr+size is fully contained in the buffer
+    template <bool pin_area>
+    [[nodiscard]] bool IsInBounds(VAddr addr, u64 size) const noexcept {
+        return addr >= 0 && addr + size <= max_device_area;
+    }
+
+    DAddr Allocate(size_t size) {
+        return main_allocator.Allocate(size);
+    }
+
+    void AllocateFixed(DAddr b_address, size_t b_size) {
+        main_allocator.AllocateFixed(b_address, b_size);
+    }
+
+    void Free(DAddr b_address, size_t b_size) {
+        main_allocator.Free(b_address, b_size);
+    }
+};
+
+template <typename Traits>
+DeviceMemoryManager<Traits>::DeviceMemoryManager(const DeviceMemory& device_memory_)
+    : physical_base{reinterpret_cast<const uintptr_t>(device_memory_.buffer.BackingBasePointer())},
+      device_inter{nullptr}, compressed_physical_ptr(device_as_size >> Memory::YUZU_PAGEBITS),
+      compressed_device_addr(1ULL << ((Settings::values.memory_layout_mode.GetValue() ==
+                                               Settings::MemoryLayout::Memory_4Gb
+                                           ? physical_min_bits
+                                           : physical_max_bits) -
+                                      Memory::YUZU_PAGEBITS)),
+      continuity_tracker(device_as_size >> Memory::YUZU_PAGEBITS),
+      cpu_backing_address(device_as_size >> Memory::YUZU_PAGEBITS) {
+    impl = std::make_unique<DeviceMemoryManagerAllocator<Traits>>();
+    cached_pages = std::make_unique<CachedPages>();
+
+    const size_t total_virtual = device_as_size >> Memory::YUZU_PAGEBITS;
+    for (size_t i = 0; i < total_virtual; i++) {
+        compressed_physical_ptr[i] = 0;
+        continuity_tracker[i] = 1;
+        cpu_backing_address[i] = 0;
+    }
+    const size_t total_phys = 1ULL << ((Settings::values.memory_layout_mode.GetValue() ==
+                                                Settings::MemoryLayout::Memory_4Gb
+                                            ? physical_min_bits
+                                            : physical_max_bits) -
+                                       Memory::YUZU_PAGEBITS);
+    for (size_t i = 0; i < total_phys; i++) {
+        compressed_device_addr[i] = 0;
+    }
+}
+
+template <typename Traits>
+DeviceMemoryManager<Traits>::~DeviceMemoryManager() = default;
+
+template <typename Traits>
+void DeviceMemoryManager<Traits>::BindInterface(DeviceInterface* device_inter_) {
+    device_inter = device_inter_;
+}
+
+template <typename Traits>
+DAddr DeviceMemoryManager<Traits>::Allocate(size_t size) {
+    return impl->Allocate(size);
+}
+
+template <typename Traits>
+void DeviceMemoryManager<Traits>::AllocateFixed(DAddr start, size_t size) {
+    return impl->AllocateFixed(start, size);
+}
+
+template <typename Traits>
+void DeviceMemoryManager<Traits>::Free(DAddr start, size_t size) {
+    impl->Free(start, size);
+}
+
+template <typename Traits>
+void DeviceMemoryManager<Traits>::Map(DAddr address, VAddr virtual_address, size_t size,
+                                      size_t process_id, bool track) {
+    Core::Memory::Memory* process_memory = registered_processes[process_id];
+    size_t start_page_d = address >> Memory::YUZU_PAGEBITS;
+    size_t num_pages = Common::AlignUp(size, Memory::YUZU_PAGESIZE) >> Memory::YUZU_PAGEBITS;
+    std::scoped_lock lk(mapping_guard);
+    for (size_t i = 0; i < num_pages; i++) {
+        const VAddr new_vaddress = virtual_address + i * Memory::YUZU_PAGESIZE;
+        auto* ptr = process_memory->GetPointerSilent(Common::ProcessAddress(new_vaddress));
+        if (ptr == nullptr) [[unlikely]] {
+            compressed_physical_ptr[start_page_d + i] = 0;
+            continue;
+        }
+        auto phys_addr = static_cast<u32>(GetRawPhysicalAddr(ptr) >> Memory::YUZU_PAGEBITS) + 1U;
+        compressed_physical_ptr[start_page_d + i] = phys_addr;
+        InsertCPUBacking(start_page_d + i, new_vaddress, process_id);
+        const u32 base_dev = compressed_device_addr[phys_addr - 1U];
+        const u32 new_dev = static_cast<u32>(start_page_d + i);
+        if (base_dev == 0) [[likely]] {
+            compressed_device_addr[phys_addr - 1U] = new_dev;
+            continue;
+        }
+        u32 start_id = base_dev & MULTI_MASK;
+        if ((base_dev >> MULTI_FLAG_BITS) == 0) {
+            start_id = impl->multi_dev_address.Register(base_dev);
+            compressed_device_addr[phys_addr - 1U] = MULTI_FLAG | start_id;
+        }
+        impl->multi_dev_address.Register(new_dev, start_id);
+    }
+    if (track) {
+        TrackContinuityImpl(address, virtual_address, size, process_id);
+    }
+}
+
+template <typename Traits>
+void DeviceMemoryManager<Traits>::Unmap(DAddr address, size_t size) {
+    size_t start_page_d = address >> Memory::YUZU_PAGEBITS;
+    size_t num_pages = Common::AlignUp(size, Memory::YUZU_PAGESIZE) >> Memory::YUZU_PAGEBITS;
+    device_inter->InvalidateRegion(address, size);
+    std::scoped_lock lk(mapping_guard);
+    for (size_t i = 0; i < num_pages; i++) {
+        auto phys_addr = compressed_physical_ptr[start_page_d + i];
+        compressed_physical_ptr[start_page_d + i] = 0;
+        cpu_backing_address[start_page_d + i] = 0;
+        if (phys_addr != 0) [[likely]] {
+            const u32 base_dev = compressed_device_addr[phys_addr - 1U];
+            if ((base_dev >> MULTI_FLAG_BITS) == 0) [[likely]] {
+                compressed_device_addr[phys_addr - 1] = 0;
+                continue;
+            }
+            const auto [more_entries, new_start] = impl->multi_dev_address.Unregister(
+                static_cast<u32>(start_page_d + i), base_dev & MULTI_MASK);
+            if (!more_entries) {
+                compressed_device_addr[phys_addr - 1] =
+                    impl->multi_dev_address.ReleaseEntry(new_start);
+                continue;
+            }
+            compressed_device_addr[phys_addr - 1] = new_start | MULTI_FLAG;
+        }
+    }
+}
+template <typename Traits>
+void DeviceMemoryManager<Traits>::TrackContinuityImpl(DAddr address, VAddr virtual_address,
+                                                      size_t size, size_t process_id) {
+    Core::Memory::Memory* process_memory = registered_processes[process_id];
+    size_t start_page_d = address >> Memory::YUZU_PAGEBITS;
+    size_t num_pages = Common::AlignUp(size, Memory::YUZU_PAGESIZE) >> Memory::YUZU_PAGEBITS;
+    uintptr_t last_ptr = 0;
+    size_t page_count = 1;
+    for (size_t i = num_pages; i > 0; i--) {
+        size_t index = i - 1;
+        const VAddr new_vaddress = virtual_address + index * Memory::YUZU_PAGESIZE;
+        const uintptr_t new_ptr = reinterpret_cast<uintptr_t>(
+            process_memory->GetPointerSilent(Common::ProcessAddress(new_vaddress)));
+        if (new_ptr + page_size == last_ptr) {
+            page_count++;
+        } else {
+            page_count = 1;
+        }
+        last_ptr = new_ptr;
+        continuity_tracker[start_page_d + index] = static_cast<u32>(page_count);
+    }
+}
+template <typename Traits>
+u8* DeviceMemoryManager<Traits>::GetSpan(const DAddr src_addr, const std::size_t size) {
+    size_t page_index = src_addr >> page_bits;
+    size_t subbits = src_addr & page_mask;
+    if ((static_cast<size_t>(continuity_tracker[page_index]) << page_bits) >= size + subbits) {
+        return GetPointer<u8>(src_addr);
+    }
+    return nullptr;
+}
+
+template <typename Traits>
+const u8* DeviceMemoryManager<Traits>::GetSpan(const DAddr src_addr, const std::size_t size) const {
+    size_t page_index = src_addr >> page_bits;
+    size_t subbits = src_addr & page_mask;
+    if ((static_cast<size_t>(continuity_tracker[page_index]) << page_bits) >= size + subbits) {
+        return GetPointer<u8>(src_addr);
+    }
+    return nullptr;
+}
+
+template <typename Traits>
+void DeviceMemoryManager<Traits>::InnerGatherDeviceAddresses(Common::ScratchBuffer<u32>& buffer,
+                                                             PAddr address) {
+    size_t phys_addr = address >> page_bits;
+    std::scoped_lock lk(mapping_guard);
+    u32 backing = compressed_device_addr[phys_addr];
+    if ((backing >> MULTI_FLAG_BITS) != 0) {
+        impl->multi_dev_address.GatherValues(backing & MULTI_MASK, buffer);
+        return;
+    }
+    buffer.resize(1);
+    buffer[0] = backing;
+}
+
+template <typename Traits>
+template <typename T>
+T* DeviceMemoryManager<Traits>::GetPointer(DAddr address) {
+    const size_t index = address >> Memory::YUZU_PAGEBITS;
+    const size_t offset = address & Memory::YUZU_PAGEMASK;
+    auto phys_addr = compressed_physical_ptr[index];
+    if (phys_addr == 0) [[unlikely]] {
+        return nullptr;
+    }
+    return GetPointerFromRaw<T>((static_cast<PAddr>(phys_addr - 1) << Memory::YUZU_PAGEBITS) +
+                                offset);
+}
+
+template <typename Traits>
+template <typename T>
+const T* DeviceMemoryManager<Traits>::GetPointer(DAddr address) const {
+    const size_t index = address >> Memory::YUZU_PAGEBITS;
+    const size_t offset = address & Memory::YUZU_PAGEMASK;
+    auto phys_addr = compressed_physical_ptr[index];
+    if (phys_addr == 0) [[unlikely]] {
+        return nullptr;
+    }
+    return GetPointerFromRaw<T>((static_cast<PAddr>(phys_addr - 1) << Memory::YUZU_PAGEBITS) +
+                                offset);
+}
+
+template <typename Traits>
+template <typename T>
+void DeviceMemoryManager<Traits>::Write(DAddr address, T value) {
+    T* ptr = GetPointer<T>(address);
+    if (!ptr) [[unlikely]] {
+        return;
+    }
+    std::memcpy(ptr, &value, sizeof(T));
+}
+
+template <typename Traits>
+template <typename T>
+T DeviceMemoryManager<Traits>::Read(DAddr address) const {
+    const T* ptr = GetPointer<T>(address);
+    T result{};
+    if (!ptr) [[unlikely]] {
+        return result;
+    }
+    std::memcpy(&result, ptr, sizeof(T));
+    return result;
+}
+
+template <typename Traits>
+void DeviceMemoryManager<Traits>::WalkBlock(DAddr addr, std::size_t size, auto on_unmapped,
+                                            auto on_memory, auto increment) {
+    std::size_t remaining_size = size;
+    std::size_t page_index = addr >> Memory::YUZU_PAGEBITS;
+    std::size_t page_offset = addr & Memory::YUZU_PAGEMASK;
+
+    while (remaining_size) {
+        const size_t next_pages = static_cast<std::size_t>(continuity_tracker[page_index]);
+        const std::size_t copy_amount =
+            std::min((next_pages << Memory::YUZU_PAGEBITS) - page_offset, remaining_size);
+        const auto current_vaddr =
+            static_cast<u64>((page_index << Memory::YUZU_PAGEBITS) + page_offset);
+        SCOPE_EXIT({
+            page_index += next_pages;
+            page_offset = 0;
+            increment(copy_amount);
+            remaining_size -= copy_amount;
+        });
+
+        auto phys_addr = compressed_physical_ptr[page_index];
+        if (phys_addr == 0) {
+            on_unmapped(copy_amount, current_vaddr);
+            continue;
+        }
+        auto* mem_ptr = GetPointerFromRaw<u8>(
+            (static_cast<PAddr>(phys_addr - 1) << Memory::YUZU_PAGEBITS) + page_offset);
+        on_memory(copy_amount, mem_ptr);
+    }
+}
+
+template <typename Traits>
+void DeviceMemoryManager<Traits>::ReadBlock(DAddr address, void* dest_pointer, size_t size) {
+    device_inter->FlushRegion(address, size);
+    WalkBlock(
+        address, size,
+        [&](size_t copy_amount, DAddr current_vaddr) {
+            LOG_ERROR(
+                HW_Memory,
+                "Unmapped Device ReadBlock @ 0x{:016X} (start address = 0x{:016X}, size = {})",
+                current_vaddr, address, size);
+            std::memset(dest_pointer, 0, copy_amount);
+        },
+        [&](size_t copy_amount, const u8* const src_ptr) {
+            std::memcpy(dest_pointer, src_ptr, copy_amount);
+        },
+        [&](const std::size_t copy_amount) {
+            dest_pointer = static_cast<u8*>(dest_pointer) + copy_amount;
+        });
+}
+
+template <typename Traits>
+void DeviceMemoryManager<Traits>::WriteBlock(DAddr address, const void* src_pointer, size_t size) {
+    WalkBlock(
+        address, size,
+        [&](size_t copy_amount, DAddr current_vaddr) {
+            LOG_ERROR(
+                HW_Memory,
+                "Unmapped Device WriteBlock @ 0x{:016X} (start address = 0x{:016X}, size = {})",
+                current_vaddr, address, size);
+        },
+        [&](size_t copy_amount, u8* const dst_ptr) {
+            std::memcpy(dst_ptr, src_pointer, copy_amount);
+        },
+        [&](const std::size_t copy_amount) {
+            src_pointer = static_cast<const u8*>(src_pointer) + copy_amount;
+        });
+    device_inter->InvalidateRegion(address, size);
+}
+
+template <typename Traits>
+void DeviceMemoryManager<Traits>::ReadBlockUnsafe(DAddr address, void* dest_pointer, size_t size) {
+    WalkBlock(
+        address, size,
+        [&](size_t copy_amount, DAddr current_vaddr) {
+            LOG_ERROR(
+                HW_Memory,
+                "Unmapped Device ReadBlock @ 0x{:016X} (start address = 0x{:016X}, size = {})",
+                current_vaddr, address, size);
+            std::memset(dest_pointer, 0, copy_amount);
+        },
+        [&](size_t copy_amount, const u8* const src_ptr) {
+            std::memcpy(dest_pointer, src_ptr, copy_amount);
+        },
+        [&](const std::size_t copy_amount) {
+            dest_pointer = static_cast<u8*>(dest_pointer) + copy_amount;
+        });
+}
+
+template <typename Traits>
+void DeviceMemoryManager<Traits>::WriteBlockUnsafe(DAddr address, const void* src_pointer,
+                                                   size_t size) {
+    WalkBlock(
+        address, size,
+        [&](size_t copy_amount, DAddr current_vaddr) {
+            LOG_ERROR(
+                HW_Memory,
+                "Unmapped Device WriteBlock @ 0x{:016X} (start address = 0x{:016X}, size = {})",
+                current_vaddr, address, size);
+        },
+        [&](size_t copy_amount, u8* const dst_ptr) {
+            std::memcpy(dst_ptr, src_pointer, copy_amount);
+        },
+        [&](const std::size_t copy_amount) {
+            src_pointer = static_cast<const u8*>(src_pointer) + copy_amount;
+        });
+}
+
+template <typename Traits>
+size_t DeviceMemoryManager<Traits>::RegisterProcess(Memory::Memory* memory_device_inter) {
+    size_t new_id;
+    if (!id_pool.empty()) {
+        new_id = id_pool.front();
+        id_pool.pop_front();
+        registered_processes[new_id] = memory_device_inter;
+    } else {
+        registered_processes.emplace_back(memory_device_inter);
+        new_id = registered_processes.size() - 1U;
+    }
+    return new_id;
+}
+
+template <typename Traits>
+void DeviceMemoryManager<Traits>::UnregisterProcess(size_t id) {
+    registered_processes[id] = nullptr;
+    id_pool.push_front(id);
+}
+
+template <typename Traits>
+void DeviceMemoryManager<Traits>::UpdatePagesCachedCount(DAddr addr, size_t size, s32 delta) {
+    bool locked = false;
+    auto lock = [&] {
+        if (!locked) {
+            counter_guard.lock();
+            locked = true;
+        }
+    };
+    SCOPE_EXIT({
+        if (locked) {
+            counter_guard.unlock();
+        }
+    });
+    u64 uncache_begin = 0;
+    u64 cache_begin = 0;
+    u64 uncache_bytes = 0;
+    u64 cache_bytes = 0;
+    const auto MarkRegionCaching = &DeviceMemoryManager<Traits>::DeviceMethods::MarkRegionCaching;
+
+    std::atomic_thread_fence(std::memory_order_acquire);
+    const size_t page_end = Common::DivCeil(addr + size, Memory::YUZU_PAGESIZE);
+    size_t page = addr >> Memory::YUZU_PAGEBITS;
+    auto [process_id, base_vaddress] = ExtractCPUBacking(page);
+    size_t vpage = base_vaddress >> Memory::YUZU_PAGEBITS;
+    auto* memory_device_inter = registered_processes[process_id];
+    for (; page != page_end; ++page) {
+        std::atomic_uint8_t& count = cached_pages->at(page >> 3).Count(page);
+
+        if (delta > 0) {
+            ASSERT_MSG(count.load(std::memory_order::relaxed) < std::numeric_limits<u8>::max(),
+                       "Count may overflow!");
+        } else if (delta < 0) {
+            ASSERT_MSG(count.load(std::memory_order::relaxed) > 0, "Count may underflow!");
+        } else {
+            ASSERT_MSG(false, "Delta must be non-zero!");
+        }
+
+        // Adds or subtracts 1, as count is a unsigned 8-bit value
+        count.fetch_add(static_cast<u8>(delta), std::memory_order_release);
+
+        // Assume delta is either -1 or 1
+        if (count.load(std::memory_order::relaxed) == 0) {
+            if (uncache_bytes == 0) {
+                uncache_begin = vpage;
+            }
+            uncache_bytes += Memory::YUZU_PAGESIZE;
+        } else if (uncache_bytes > 0) {
+            lock();
+            MarkRegionCaching(memory_device_inter, uncache_begin << Memory::YUZU_PAGEBITS,
+                              uncache_bytes, false);
+            uncache_bytes = 0;
+        }
+        if (count.load(std::memory_order::relaxed) == 1 && delta > 0) {
+            if (cache_bytes == 0) {
+                cache_begin = vpage;
+            }
+            cache_bytes += Memory::YUZU_PAGESIZE;
+        } else if (cache_bytes > 0) {
+            lock();
+            MarkRegionCaching(memory_device_inter, cache_begin << Memory::YUZU_PAGEBITS, cache_bytes,
+                              true);
+            cache_bytes = 0;
+        }
+        vpage++;
+    }
+    if (uncache_bytes > 0) {
+        lock();
+        MarkRegionCaching(memory_device_inter, uncache_begin << Memory::YUZU_PAGEBITS, uncache_bytes,
+                          false);
+    }
+    if (cache_bytes > 0) {
+        lock();
+        MarkRegionCaching(memory_device_inter, cache_begin << Memory::YUZU_PAGEBITS, cache_bytes,
+                          true);
+    }
+}
+
+} // namespace Core

src/core/file_sys/patch_manager.cpp

@@ -26,7 +26,7 @@
 #include "core/file_sys/vfs_vector.h"
 #include "core/hle/service/filesystem/filesystem.h"
 #include "core/hle/service/ns/language.h"
-#include "core/hle/service/set/set.h"
+#include "core/hle/service/set/settings_server.h"
 #include "core/loader/loader.h"
 #include "core/loader/nso.h"
 #include "core/memory/cheat_engine.h"

src/core/file_sys/savedata_factory.cpp

@@ -97,8 +97,9 @@ std::string SaveDataAttribute::DebugInfo() const {
                        static_cast<u8>(rank), index);
 }
 
-SaveDataFactory::SaveDataFactory(Core::System& system_, VirtualDir save_directory_)
-    : dir{std::move(save_directory_)}, system{system_} {
+SaveDataFactory::SaveDataFactory(Core::System& system_, ProgramId program_id_,
+                                 VirtualDir save_directory_)
+    : system{system_}, program_id{program_id_}, dir{std::move(save_directory_)} {
     // Delete all temporary storages
     // On hardware, it is expected that temporary storage be empty at first use.
     dir->DeleteSubdirectoryRecursive("temp");
@@ -110,7 +111,7 @@ VirtualDir SaveDataFactory::Create(SaveDataSpaceId space, const SaveDataAttribut
     PrintSaveDataAttributeWarnings(meta);
 
     const auto save_directory =
-        GetFullPath(system, dir, space, meta.type, meta.title_id, meta.user_id, meta.save_id);
+        GetFullPath(program_id, dir, space, meta.type, meta.title_id, meta.user_id, meta.save_id);
 
     return dir->CreateDirectoryRelative(save_directory);
 }
@@ -118,7 +119,7 @@ VirtualDir SaveDataFactory::Create(SaveDataSpaceId space, const SaveDataAttribut
 VirtualDir SaveDataFactory::Open(SaveDataSpaceId space, const SaveDataAttribute& meta) const {
 
     const auto save_directory =
-        GetFullPath(system, dir, space, meta.type, meta.title_id, meta.user_id, meta.save_id);
+        GetFullPath(program_id, dir, space, meta.type, meta.title_id, meta.user_id, meta.save_id);
 
     auto out = dir->GetDirectoryRelative(save_directory);
 
@@ -147,14 +148,14 @@ std::string SaveDataFactory::GetSaveDataSpaceIdPath(SaveDataSpaceId space) {
     }
 }
 
-std::string SaveDataFactory::GetFullPath(Core::System& system, VirtualDir dir,
+std::string SaveDataFactory::GetFullPath(ProgramId program_id, VirtualDir dir,
                                          SaveDataSpaceId space, SaveDataType type, u64 title_id,
                                          u128 user_id, u64 save_id) {
     // According to switchbrew, if a save is of type SaveData and the title id field is 0, it should
     // be interpreted as the title id of the current process.
     if (type == SaveDataType::SaveData || type == SaveDataType::DeviceSaveData) {
         if (title_id == 0) {
-            title_id = system.GetApplicationProcessProgramID();
+            title_id = program_id;
         }
     }
 
@@ -189,10 +190,19 @@ std::string SaveDataFactory::GetFullPath(Core::System& system, VirtualDir dir,
     }
 }
 
+std::string SaveDataFactory::GetUserGameSaveDataRoot(u128 user_id, bool future) {
+    if (future) {
+        Common::UUID uuid;
+        std::memcpy(uuid.uuid.data(), user_id.data(), sizeof(Common::UUID));
+        return fmt::format("/user/save/account/{}", uuid.RawString());
+    }
+    return fmt::format("/user/save/{:016X}/{:016X}{:016X}", 0, user_id[1], user_id[0]);
+}
+
 SaveDataSize SaveDataFactory::ReadSaveDataSize(SaveDataType type, u64 title_id,
                                                u128 user_id) const {
     const auto path =
-        GetFullPath(system, dir, SaveDataSpaceId::NandUser, type, title_id, user_id, 0);
+        GetFullPath(program_id, dir, SaveDataSpaceId::NandUser, type, title_id, user_id, 0);
     const auto relative_dir = GetOrCreateDirectoryRelative(dir, path);
 
     const auto size_file = relative_dir->GetFile(GetSaveDataSizeFileName());
@@ -211,7 +221,7 @@ SaveDataSize SaveDataFactory::ReadSaveDataSize(SaveDataType type, u64 title_id,
 void SaveDataFactory::WriteSaveDataSize(SaveDataType type, u64 title_id, u128 user_id,
                                         SaveDataSize new_value) const {
     const auto path =
-        GetFullPath(system, dir, SaveDataSpaceId::NandUser, type, title_id, user_id, 0);
+        GetFullPath(program_id, dir, SaveDataSpaceId::NandUser, type, title_id, user_id, 0);
     const auto relative_dir = GetOrCreateDirectoryRelative(dir, path);
 
     const auto size_file = relative_dir->CreateFile(GetSaveDataSizeFileName());

src/core/file_sys/savedata_factory.h

@@ -87,10 +87,13 @@ constexpr const char* GetSaveDataSizeFileName() {
     return ".yuzu_save_size";
 }
 
+using ProgramId = u64;
+
 /// File system interface to the SaveData archive
 class SaveDataFactory {
 public:
-    explicit SaveDataFactory(Core::System& system_, VirtualDir save_directory_);
+    explicit SaveDataFactory(Core::System& system_, ProgramId program_id_,
+                             VirtualDir save_directory_);
     ~SaveDataFactory();
 
     VirtualDir Create(SaveDataSpaceId space, const SaveDataAttribute& meta) const;
@@ -99,8 +102,9 @@ public:
     VirtualDir GetSaveDataSpaceDirectory(SaveDataSpaceId space) const;
 
     static std::string GetSaveDataSpaceIdPath(SaveDataSpaceId space);
-    static std::string GetFullPath(Core::System& system, VirtualDir dir, SaveDataSpaceId space,
+    static std::string GetFullPath(ProgramId program_id, VirtualDir dir, SaveDataSpaceId space,
                                    SaveDataType type, u64 title_id, u128 user_id, u64 save_id);
+    static std::string GetUserGameSaveDataRoot(u128 user_id, bool future);
 
     SaveDataSize ReadSaveDataSize(SaveDataType type, u64 title_id, u128 user_id) const;
     void WriteSaveDataSize(SaveDataType type, u64 title_id, u128 user_id,
@@ -109,8 +113,9 @@ public:
     void SetAutoCreate(bool state);
 
 private:
-    VirtualDir dir;
     Core::System& system;
+    ProgramId program_id;
+    VirtualDir dir;
     bool auto_create{true};
 };
 

src/core/frontend/applets/controller.cpp

@@ -6,9 +6,9 @@
 #include "common/settings.h"
 #include "common/settings_enums.h"
 #include "core/frontend/applets/controller.h"
-#include "core/hid/emulated_controller.h"
-#include "core/hid/hid_core.h"
-#include "core/hid/hid_types.h"
+#include "hid_core/frontend/emulated_controller.h"
+#include "hid_core/hid_core.h"
+#include "hid_core/hid_types.h"
 
 namespace Core::Frontend {
 
@@ -47,7 +47,7 @@ void DefaultControllerApplet::ReconfigureControllers(ReconfigureCallback callbac
         // Connect controllers based on the following priority list from highest to lowest priority:
         // Pro Controller -> Dual Joycons -> Left Joycon/Right Joycon -> Handheld
         if (parameters.allow_pro_controller) {
-            controller->SetNpadStyleIndex(Core::HID::NpadStyleIndex::ProController);
+            controller->SetNpadStyleIndex(Core::HID::NpadStyleIndex::Fullkey);
             controller->Connect(true);
         } else if (parameters.allow_dual_joycons) {
             controller->SetNpadStyleIndex(Core::HID::NpadStyleIndex::JoyconDual);

src/core/gpu_dirty_memory_manager.h

@@ -10,7 +10,7 @@
 #include <utility>
 #include <vector>
 
-#include "core/memory.h"
+#include "core/device_memory_manager.h"
 
 namespace Core {
 
@@ -23,7 +23,7 @@ public:
 
     ~GPUDirtyMemoryManager() = default;
 
-    void Collect(VAddr address, size_t size) {
+    void Collect(PAddr address, size_t size) {
         TransformAddress t = BuildTransform(address, size);
         TransformAddress tmp, original;
         do {
@@ -47,7 +47,7 @@ public:
                                                 std::memory_order_relaxed));
     }
 
-    void Gather(std::function<void(VAddr, size_t)>& callback) {
+    void Gather(std::function<void(PAddr, size_t)>& callback) {
         {
             std::scoped_lock lk(guard);
             TransformAddress t = current.exchange(default_transform, std::memory_order_relaxed);
@@ -65,7 +65,7 @@ public:
                 mask = mask >> empty_bits;
 
                 const size_t continuous_bits = std::countr_one(mask);
-                callback((static_cast<VAddr>(transform.address) << page_bits) + offset,
+                callback((static_cast<PAddr>(transform.address) << page_bits) + offset,
                          continuous_bits << align_bits);
                 mask = continuous_bits < align_size ? (mask >> continuous_bits) : 0;
                 offset += continuous_bits << align_bits;
@@ -80,7 +80,7 @@ private:
         u32 mask;
     };
 
-    constexpr static size_t page_bits = Memory::YUZU_PAGEBITS - 1;
+    constexpr static size_t page_bits = DEVICE_PAGEBITS - 1;
     constexpr static size_t page_size = 1ULL << page_bits;
     constexpr static size_t page_mask = page_size - 1;
 
@@ -89,7 +89,7 @@ private:
     constexpr static size_t align_mask = align_size - 1;
     constexpr static TransformAddress default_transform = {.address = ~0U, .mask = 0U};
 
-    bool IsValid(VAddr address) {
+    bool IsValid(PAddr address) {
         return address < (1ULL << 39);
     }
 
@@ -103,7 +103,7 @@ private:
         return mask;
     }
 
-    TransformAddress BuildTransform(VAddr address, size_t size) {
+    TransformAddress BuildTransform(PAddr address, size_t size) {
         const size_t minor_address = address & page_mask;
         const size_t minor_bit = minor_address >> align_bits;
         const size_t top_bit = (minor_address + size + align_mask) >> align_bits;

src/core/guest_memory.h

@@ -0,0 +1,214 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <iterator>
+#include <memory>
+#include <optional>
+#include <span>
+#include <vector>
+
+#include "common/assert.h"
+#include "common/scratch_buffer.h"
+
+namespace Core::Memory {
+
+enum GuestMemoryFlags : u32 {
+    Read = 1 << 0,
+    Write = 1 << 1,
+    Safe = 1 << 2,
+    Cached = 1 << 3,
+
+    SafeRead = Read | Safe,
+    SafeWrite = Write | Safe,
+    SafeReadWrite = SafeRead | SafeWrite,
+    SafeReadCachedWrite = SafeReadWrite | Cached,
+
+    UnsafeRead = Read,
+    UnsafeWrite = Write,
+    UnsafeReadWrite = UnsafeRead | UnsafeWrite,
+    UnsafeReadCachedWrite = UnsafeReadWrite | Cached,
+};
+
+namespace {
+template <typename M, typename T, GuestMemoryFlags FLAGS>
+class GuestMemory {
+    using iterator = T*;
+    using const_iterator = const T*;
+    using value_type = T;
+    using element_type = T;
+    using iterator_category = std::contiguous_iterator_tag;
+
+public:
+    GuestMemory() = delete;
+    explicit GuestMemory(M& memory, u64 addr, std::size_t size,
+                         Common::ScratchBuffer<T>* backup = nullptr)
+        : m_memory{memory}, m_addr{addr}, m_size{size} {
+        static_assert(FLAGS & GuestMemoryFlags::Read || FLAGS & GuestMemoryFlags::Write);
+        if constexpr (FLAGS & GuestMemoryFlags::Read) {
+            Read(addr, size, backup);
+        }
+    }
+
+    ~GuestMemory() = default;
+
+    T* data() noexcept {
+        return m_data_span.data();
+    }
+
+    const T* data() const noexcept {
+        return m_data_span.data();
+    }
+
+    size_t size() const noexcept {
+        return m_size;
+    }
+
+    size_t size_bytes() const noexcept {
+        return this->size() * sizeof(T);
+    }
+
+    [[nodiscard]] T* begin() noexcept {
+        return this->data();
+    }
+
+    [[nodiscard]] const T* begin() const noexcept {
+        return this->data();
+    }
+
+    [[nodiscard]] T* end() noexcept {
+        return this->data() + this->size();
+    }
+
+    [[nodiscard]] const T* end() const noexcept {
+        return this->data() + this->size();
+    }
+
+    T& operator[](size_t index) noexcept {
+        return m_data_span[index];
+    }
+
+    const T& operator[](size_t index) const noexcept {
+        return m_data_span[index];
+    }
+
+    void SetAddressAndSize(u64 addr, std::size_t size) noexcept {
+        m_addr = addr;
+        m_size = size;
+        m_addr_changed = true;
+    }
+
+    std::span<T> Read(u64 addr, std::size_t size,
+                      Common::ScratchBuffer<T>* backup = nullptr) noexcept {
+        m_addr = addr;
+        m_size = size;
+        if (m_size == 0) {
+            m_is_data_copy = true;
+            return {};
+        }
+
+        if (this->TrySetSpan()) {
+            if constexpr (FLAGS & GuestMemoryFlags::Safe) {
+                m_memory.FlushRegion(m_addr, this->size_bytes());
+            }
+        } else {
+            if (backup) {
+                backup->resize_destructive(this->size());
+                m_data_span = *backup;
+            } else {
+                m_data_copy.resize(this->size());
+                m_data_span = std::span(m_data_copy);
+            }
+            m_is_data_copy = true;
+            m_span_valid = true;
+            if constexpr (FLAGS & GuestMemoryFlags::Safe) {
+                m_memory.ReadBlock(m_addr, this->data(), this->size_bytes());
+            } else {
+                m_memory.ReadBlockUnsafe(m_addr, this->data(), this->size_bytes());
+            }
+        }
+        return m_data_span;
+    }
+
+    void Write(std::span<T> write_data) noexcept {
+        if constexpr (FLAGS & GuestMemoryFlags::Cached) {
+            m_memory.WriteBlockCached(m_addr, write_data.data(), this->size_bytes());
+        } else if constexpr (FLAGS & GuestMemoryFlags::Safe) {
+            m_memory.WriteBlock(m_addr, write_data.data(), this->size_bytes());
+        } else {
+            m_memory.WriteBlockUnsafe(m_addr, write_data.data(), this->size_bytes());
+        }
+    }
+
+    bool TrySetSpan() noexcept {
+        if (u8* ptr = m_memory.GetSpan(m_addr, this->size_bytes()); ptr) {
+            m_data_span = {reinterpret_cast<T*>(ptr), this->size()};
+            m_span_valid = true;
+            return true;
+        }
+        return false;
+    }
+
+protected:
+    bool IsDataCopy() const noexcept {
+        return m_is_data_copy;
+    }
+
+    bool AddressChanged() const noexcept {
+        return m_addr_changed;
+    }
+
+    M& m_memory;
+    u64 m_addr{};
+    size_t m_size{};
+    std::span<T> m_data_span{};
+    std::vector<T> m_data_copy{};
+    bool m_span_valid{false};
+    bool m_is_data_copy{false};
+    bool m_addr_changed{false};
+};
+
+template <typename M, typename T, GuestMemoryFlags FLAGS>
+class GuestMemoryScoped : public GuestMemory<M, T, FLAGS> {
+public:
+    GuestMemoryScoped() = delete;
+    explicit GuestMemoryScoped(M& memory, u64 addr, std::size_t size,
+                               Common::ScratchBuffer<T>* backup = nullptr)
+        : GuestMemory<M, T, FLAGS>(memory, addr, size, backup) {
+        if constexpr (!(FLAGS & GuestMemoryFlags::Read)) {
+            if (!this->TrySetSpan()) {
+                if (backup) {
+                    this->m_data_span = *backup;
+                    this->m_span_valid = true;
+                    this->m_is_data_copy = true;
+                }
+            }
+        }
+    }
+
+    ~GuestMemoryScoped() {
+        if constexpr (FLAGS & GuestMemoryFlags::Write) {
+            if (this->size() == 0) [[unlikely]] {
+                return;
+            }
+
+            if (this->AddressChanged() || this->IsDataCopy()) {
+                ASSERT(this->m_span_valid);
+                if constexpr (FLAGS & GuestMemoryFlags::Cached) {
+                    this->m_memory.WriteBlockCached(this->m_addr, this->data(), this->size_bytes());
+                } else if constexpr (FLAGS & GuestMemoryFlags::Safe) {
+                    this->m_memory.WriteBlock(this->m_addr, this->data(), this->size_bytes());
+                } else {
+                    this->m_memory.WriteBlockUnsafe(this->m_addr, this->data(), this->size_bytes());
+                }
+            } else if constexpr ((FLAGS & GuestMemoryFlags::Safe) ||
+                                 (FLAGS & GuestMemoryFlags::Cached)) {
+                this->m_memory.InvalidateRegion(this->m_addr, this->size_bytes());
+            }
+        }
+    }
+};
+} // namespace
+
+} // namespace Core::Memory

src/core/hle/kernel/k_memory_block.h

@@ -81,12 +81,12 @@ enum class KMemoryState : u32 {
 
     ThreadLocal = static_cast<u32>(Svc::MemoryState::ThreadLocal) | FlagLinearMapped,
 
-    Transfered = static_cast<u32>(Svc::MemoryState::Transfered) | FlagsMisc |
-                 FlagCanAlignedDeviceMap | FlagCanChangeAttribute | FlagCanUseIpc |
-                 FlagCanUseNonSecureIpc | FlagCanUseNonDeviceIpc,
+    Transferred = static_cast<u32>(Svc::MemoryState::Transferred) | FlagsMisc |
+                  FlagCanAlignedDeviceMap | FlagCanChangeAttribute | FlagCanUseIpc |
+                  FlagCanUseNonSecureIpc | FlagCanUseNonDeviceIpc,
 
-    SharedTransfered = static_cast<u32>(Svc::MemoryState::SharedTransfered) | FlagsMisc |
-                       FlagCanAlignedDeviceMap | FlagCanUseNonSecureIpc | FlagCanUseNonDeviceIpc,
+    SharedTransferred = static_cast<u32>(Svc::MemoryState::SharedTransferred) | FlagsMisc |
+                        FlagCanAlignedDeviceMap | FlagCanUseNonSecureIpc | FlagCanUseNonDeviceIpc,
 
     SharedCode = static_cast<u32>(Svc::MemoryState::SharedCode) | FlagMapped |
                  FlagReferenceCounted | FlagLinearMapped | FlagCanUseNonSecureIpc |
@@ -130,8 +130,8 @@ static_assert(static_cast<u32>(KMemoryState::AliasCodeData) == 0x0FFFBD09);
 static_assert(static_cast<u32>(KMemoryState::Ipc) == 0x045C3C0A);
 static_assert(static_cast<u32>(KMemoryState::Stack) == 0x045C3C0B);
 static_assert(static_cast<u32>(KMemoryState::ThreadLocal) == 0x0400000C);
-static_assert(static_cast<u32>(KMemoryState::Transfered) == 0x055C3C0D);
-static_assert(static_cast<u32>(KMemoryState::SharedTransfered) == 0x045C380E);
+static_assert(static_cast<u32>(KMemoryState::Transferred) == 0x055C3C0D);
+static_assert(static_cast<u32>(KMemoryState::SharedTransferred) == 0x045C380E);
 static_assert(static_cast<u32>(KMemoryState::SharedCode) == 0x0440380F);
 static_assert(static_cast<u32>(KMemoryState::Inaccessible) == 0x00000010);
 static_assert(static_cast<u32>(KMemoryState::NonSecureIpc) == 0x045C3811);

src/core/hle/kernel/k_memory_block_manager.cpp

@@ -28,14 +28,14 @@ Result KMemoryBlockManager::Initialize(KProcessAddress st, KProcessAddress nd,
 }
 
 void KMemoryBlockManager::Finalize(KMemoryBlockSlabManager* slab_manager,
-                                   HostUnmapCallback&& host_unmap_callback) {
+                                   BlockCallback&& block_callback) {
     // Erase every block until we have none left.
     auto it = m_memory_block_tree.begin();
     while (it != m_memory_block_tree.end()) {
         KMemoryBlock* block = std::addressof(*it);
         it = m_memory_block_tree.erase(it);
+        block_callback(block->GetAddress(), block->GetSize());
         slab_manager->Free(block);
-        host_unmap_callback(block->GetAddress(), block->GetSize());
     }
 
     ASSERT(m_memory_block_tree.empty());

src/core/hle/kernel/k_memory_block_manager.h

@@ -85,11 +85,11 @@ public:
 public:
     KMemoryBlockManager();
 
-    using HostUnmapCallback = std::function<void(Common::ProcessAddress, u64)>;
+    using BlockCallback = std::function<void(Common::ProcessAddress, u64)>;
 
     Result Initialize(KProcessAddress st, KProcessAddress nd,
                       KMemoryBlockSlabManager* slab_manager);
-    void Finalize(KMemoryBlockSlabManager* slab_manager, HostUnmapCallback&& host_unmap_callback);
+    void Finalize(KMemoryBlockSlabManager* slab_manager, BlockCallback&& block_callback);
 
     iterator end() {
         return m_memory_block_tree.end();

src/core/hle/kernel/k_page_table_base.cpp

@@ -431,15 +431,43 @@ Result KPageTableBase::InitializeForProcess(Svc::CreateProcessFlag as_type, bool
                                                m_memory_block_slab_manager));
 }
 
+Result KPageTableBase::FinalizeProcess() {
+    // Only process tables should be finalized.
+    ASSERT(!this->IsKernel());
+
+    // NOTE: Here Nintendo calls an unknown OnFinalize function.
+    // this->OnFinalize();
+
+    // NOTE: Here Nintendo calls a second unknown OnFinalize function.
+    // this->OnFinalize2();
+
+    // NOTE: Here Nintendo does a page table walk to discover heap pages to free.
+    // We will use the block manager finalization below to free them.
+
+    R_SUCCEED();
+}
+
 void KPageTableBase::Finalize() {
-    auto HostUnmapCallback = [&](KProcessAddress addr, u64 size) {
-        if (Settings::IsFastmemEnabled()) {
+    this->FinalizeProcess();
+
+    auto BlockCallback = [&](KProcessAddress addr, u64 size) {
+        if (m_impl->fastmem_arena) {
             m_system.DeviceMemory().buffer.Unmap(GetInteger(addr), size, false);
         }
+
+        // Get physical pages.
+        KPageGroup pg(m_kernel, m_block_info_manager);
+        this->MakePageGroup(pg, addr, size / PageSize);
+
+        // Free the pages.
+        pg.CloseAndReset();
     };
 
     // Finalize memory blocks.
-    m_memory_block_manager.Finalize(m_memory_block_slab_manager, std::move(HostUnmapCallback));
+    {
+        KScopedLightLock lk(m_general_lock);
+        m_memory_block_manager.Finalize(m_memory_block_slab_manager, std::move(BlockCallback));
+    }
 
     // Free any unsafe mapped memory.
     if (m_mapped_unsafe_physical_memory) {
@@ -486,8 +514,8 @@ KProcessAddress KPageTableBase::GetRegionAddress(Svc::MemoryState state) const {
     case Svc::MemoryState::Shared:
     case Svc::MemoryState::AliasCode:
     case Svc::MemoryState::AliasCodeData:
-    case Svc::MemoryState::Transfered:
-    case Svc::MemoryState::SharedTransfered:
+    case Svc::MemoryState::Transferred:
+    case Svc::MemoryState::SharedTransferred:
     case Svc::MemoryState::SharedCode:
     case Svc::MemoryState::GeneratedCode:
     case Svc::MemoryState::CodeOut:
@@ -522,8 +550,8 @@ size_t KPageTableBase::GetRegionSize(Svc::MemoryState state) const {
     case Svc::MemoryState::Shared:
     case Svc::MemoryState::AliasCode:
     case Svc::MemoryState::AliasCodeData:
-    case Svc::MemoryState::Transfered:
-    case Svc::MemoryState::SharedTransfered:
+    case Svc::MemoryState::Transferred:
+    case Svc::MemoryState::SharedTransferred:
     case Svc::MemoryState::SharedCode:
     case Svc::MemoryState::GeneratedCode:
     case Svc::MemoryState::CodeOut:
@@ -564,8 +592,8 @@ bool KPageTableBase::CanContain(KProcessAddress addr, size_t size, Svc::MemorySt
     case Svc::MemoryState::AliasCodeData:
     case Svc::MemoryState::Stack:
     case Svc::MemoryState::ThreadLocal:
-    case Svc::MemoryState::Transfered:
-    case Svc::MemoryState::SharedTransfered:
+    case Svc::MemoryState::Transferred:
+    case Svc::MemoryState::SharedTransferred:
     case Svc::MemoryState::SharedCode:
     case Svc::MemoryState::GeneratedCode:
     case Svc::MemoryState::CodeOut:

src/core/hle/kernel/k_page_table_base.h

@@ -241,6 +241,7 @@ public:
                                 KResourceLimit* resource_limit, Core::Memory::Memory& memory,
                                 KProcessAddress aslr_space_start);
 
+    Result FinalizeProcess();
     void Finalize();
 
     bool IsKernel() const {

src/core/hle/kernel/k_process.cpp

@@ -5,6 +5,7 @@
 #include "common/scope_exit.h"
 #include "common/settings.h"
 #include "core/core.h"
+#include "core/gpu_dirty_memory_manager.h"
 #include "core/hle/kernel/k_process.h"
 #include "core/hle/kernel/k_scoped_resource_reservation.h"
 #include "core/hle/kernel/k_shared_memory.h"
@@ -171,6 +172,12 @@ void KProcess::Finalize() {
         m_resource_limit->Close();
     }
 
+    // Clear expensive resources, as the destructor is not called for guest objects.
+    for (auto& interface : m_arm_interfaces) {
+        interface.reset();
+    }
+    m_exclusive_monitor.reset();
+
     // Perform inherited finalization.
     KSynchronizationObject::Finalize();
 }
@@ -314,7 +321,7 @@ Result KProcess::Initialize(const Svc::CreateProcessParameter& params, const KPa
 
     // Ensure our memory is initialized.
     m_memory.SetCurrentPageTable(*this);
-    m_memory.SetGPUDirtyManagers(m_dirty_memory_managers);
+    m_memory.SetGPUDirtyManagers(m_kernel.System().GetGPUDirtyMemoryManager());
 
     // Ensure we can insert the code region.
     R_UNLESS(m_page_table.CanContain(params.code_address, params.code_num_pages * PageSize,
@@ -411,7 +418,7 @@ Result KProcess::Initialize(const Svc::CreateProcessParameter& params,
 
     // Ensure our memory is initialized.
     m_memory.SetCurrentPageTable(*this);
-    m_memory.SetGPUDirtyManagers(m_dirty_memory_managers);
+    m_memory.SetGPUDirtyManagers(m_kernel.System().GetGPUDirtyMemoryManager());
 
     // Ensure we can insert the code region.
     R_UNLESS(m_page_table.CanContain(params.code_address, code_size, KMemoryState::Code),
@@ -1135,8 +1142,7 @@ void KProcess::Switch(KProcess* cur_process, KProcess* next_process) {}
 KProcess::KProcess(KernelCore& kernel)
     : KAutoObjectWithSlabHeapAndContainer(kernel), m_page_table{kernel}, m_state_lock{kernel},
       m_list_lock{kernel}, m_cond_var{kernel.System()}, m_address_arbiter{kernel.System()},
-      m_handle_table{kernel}, m_dirty_memory_managers{},
-      m_exclusive_monitor{}, m_memory{kernel.System()} {}
+      m_handle_table{kernel}, m_exclusive_monitor{}, m_memory{kernel.System()} {}
 KProcess::~KProcess() = default;
 
 Result KProcess::LoadFromMetadata(const FileSys::ProgramMetadata& metadata, std::size_t code_size,
@@ -1318,10 +1324,4 @@ bool KProcess::RemoveWatchpoint(KProcessAddress addr, u64 size, DebugWatchpointT
     return true;
 }
 
-void KProcess::GatherGPUDirtyMemory(std::function<void(VAddr, size_t)>& callback) {
-    for (auto& manager : m_dirty_memory_managers) {
-        manager.Gather(callback);
-    }
-}
-
 } // namespace Kernel

src/core/hle/kernel/k_process.h

@@ -7,7 +7,6 @@
 
 #include "core/arm/arm_interface.h"
 #include "core/file_sys/program_metadata.h"
-#include "core/gpu_dirty_memory_manager.h"
 #include "core/hle/kernel/code_set.h"
 #include "core/hle/kernel/k_address_arbiter.h"
 #include "core/hle/kernel/k_capabilities.h"
@@ -128,7 +127,6 @@ private:
 #ifdef HAS_NCE
     std::unordered_map<u64, u64> m_post_handlers{};
 #endif
-    std::array<Core::GPUDirtyMemoryManager, Core::Hardware::NUM_CPU_CORES> m_dirty_memory_managers;
     std::unique_ptr<Core::ExclusiveMonitor> m_exclusive_monitor;
     Core::Memory::Memory m_memory;
 
@@ -511,8 +509,6 @@ public:
         return m_memory;
     }
 
-    void GatherGPUDirtyMemory(std::function<void(VAddr, size_t)>& callback);
-
     Core::ExclusiveMonitor& GetExclusiveMonitor() const {
         return *m_exclusive_monitor;
     }

src/core/hle/kernel/k_thread.cpp

@@ -1258,11 +1258,11 @@ ThreadState KThread::RequestTerminate() {
         // Change the thread's priority to be higher than any system thread's.
         this->IncreaseBasePriority(TerminatingThreadPriority);
 
-        // If the thread is runnable, send a termination interrupt to other cores.
+        // If the thread is runnable, send a termination interrupt to cores it may be running on.
         if (this->GetState() == ThreadState::Runnable) {
-            if (const u64 core_mask = m_physical_affinity_mask.GetAffinityMask() &
-                                      ~(1ULL << GetCurrentCoreId(m_kernel));
-                core_mask != 0) {
+            // NOTE: We do not mask the "current core", because this code may not actually be
+            //       executing from the thread representing the "current core".
+            if (const u64 core_mask = m_physical_affinity_mask.GetAffinityMask(); core_mask != 0) {
                 Kernel::KInterruptManager::SendInterProcessorInterrupt(m_kernel, core_mask);
             }
         }

src/core/hle/kernel/k_transfer_memory.cpp

@@ -76,8 +76,8 @@ Result KTransferMemory::Map(KProcessAddress address, size_t size, Svc::MemoryPer
 
     // Map the memory.
     const KMemoryState state = (m_owner_perm == Svc::MemoryPermission::None)
-                                   ? KMemoryState::Transfered
-                                   : KMemoryState::SharedTransfered;
+                                   ? KMemoryState::Transferred
+                                   : KMemoryState::SharedTransferred;
     R_TRY(GetCurrentProcess(m_kernel).GetPageTable().MapPageGroup(
         address, *m_page_group, state, KMemoryPermission::UserReadWrite));
 
@@ -96,8 +96,8 @@ Result KTransferMemory::Unmap(KProcessAddress address, size_t size) {
 
     // Unmap the memory.
     const KMemoryState state = (m_owner_perm == Svc::MemoryPermission::None)
-                                   ? KMemoryState::Transfered
-                                   : KMemoryState::SharedTransfered;
+                                   ? KMemoryState::Transferred
+                                   : KMemoryState::SharedTransferred;
     R_TRY(GetCurrentProcess(m_kernel).GetPageTable().UnmapPageGroup(address, *m_page_group, state));
 
     // Mark ourselves as unmapped.

src/core/hle/kernel/kernel.cpp

@@ -112,7 +112,14 @@ struct KernelCore::Impl {
             old_process->Close();
         }
 
-        process_list.clear();
+        {
+            std::scoped_lock lk{process_list_lock};
+            for (auto* const process : process_list) {
+                process->Terminate();
+                process->Close();
+            }
+            process_list.clear();
+        }
 
         next_object_id = 0;
         next_kernel_process_id = KProcess::InitialProcessIdMin;
@@ -770,6 +777,7 @@ struct KernelCore::Impl {
     std::atomic<u64> next_thread_id{1};
 
     // Lists all processes that exist in the current session.
+    std::mutex process_list_lock;
     std::vector<KProcess*> process_list;
     std::atomic<KProcess*> application_process{};
     std::unique_ptr<Kernel::GlobalSchedulerContext> global_scheduler_context;
@@ -869,9 +877,19 @@ KResourceLimit* KernelCore::GetSystemResourceLimit() {
 }
 
 void KernelCore::AppendNewProcess(KProcess* process) {
+    process->Open();
+
+    std::scoped_lock lk{impl->process_list_lock};
     impl->process_list.push_back(process);
 }
 
+void KernelCore::RemoveProcess(KProcess* process) {
+    std::scoped_lock lk{impl->process_list_lock};
+    if (std::erase(impl->process_list, process)) {
+        process->Close();
+    }
+}
+
 void KernelCore::MakeApplicationProcess(KProcess* process) {
     impl->MakeApplicationProcess(process);
 }
@@ -884,8 +902,15 @@ const KProcess* KernelCore::ApplicationProcess() const {
     return impl->application_process;
 }
 
-const std::vector<KProcess*>& KernelCore::GetProcessList() const {
-    return impl->process_list;
+std::list<KScopedAutoObject<KProcess>> KernelCore::GetProcessList() {
+    std::list<KScopedAutoObject<KProcess>> processes;
+    std::scoped_lock lk{impl->process_list_lock};
+
+    for (auto* const process : impl->process_list) {
+        processes.emplace_back(process);
+    }
+
+    return processes;
 }
 
 Kernel::GlobalSchedulerContext& KernelCore::GlobalSchedulerContext() {

src/core/hle/kernel/kernel.h

@@ -5,6 +5,7 @@
 
 #include <array>
 #include <functional>
+#include <list>
 #include <memory>
 #include <string>
 #include <unordered_map>
@@ -116,8 +117,9 @@ public:
     /// Retrieves a shared pointer to the system resource limit instance.
     KResourceLimit* GetSystemResourceLimit();
 
-    /// Adds the given shared pointer to an internal list of active processes.
+    /// Adds/removes the given pointer to an internal list of active processes.
     void AppendNewProcess(KProcess* process);
+    void RemoveProcess(KProcess* process);
 
     /// Makes the given process the new application process.
     void MakeApplicationProcess(KProcess* process);
@@ -129,7 +131,7 @@ public:
     const KProcess* ApplicationProcess() const;
 
     /// Retrieves the list of processes.
-    const std::vector<KProcess*>& GetProcessList() const;
+    std::list<KScopedAutoObject<KProcess>> GetProcessList();
 
     /// Gets the sole instance of the global scheduler
     Kernel::GlobalSchedulerContext& GlobalSchedulerContext();

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

@@ -74,13 +74,15 @@ Result GetProcessList(Core::System& system, s32* out_num_processes, u64 out_proc
     }
 
     auto& memory = GetCurrentMemory(kernel);
-    const auto& process_list = kernel.GetProcessList();
+    auto process_list = kernel.GetProcessList();
+    auto it = process_list.begin();
+
     const auto num_processes = process_list.size();
     const auto copy_amount =
         std::min(static_cast<std::size_t>(out_process_ids_size), num_processes);
 
-    for (std::size_t i = 0; i < copy_amount; ++i) {
-        memory.Write64(out_process_ids, process_list[i]->GetProcessId());
+    for (std::size_t i = 0; i < copy_amount && it != process_list.end(); ++i, ++it) {
+        memory.Write64(out_process_ids, (*it)->GetProcessId());
         out_process_ids += sizeof(u64);
     }
 

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

@@ -90,7 +90,7 @@ Result MapTransferMemory(Core::System& system, Handle trmem_handle, uint64_t add
     // Verify that the mapping is in range.
     R_UNLESS(GetCurrentProcess(system.Kernel())
                  .GetPageTable()
-                 .CanContain(address, size, KMemoryState::Transfered),
+                 .CanContain(address, size, KMemoryState::Transferred),
              ResultInvalidMemoryRegion);
 
     // Map the transfer memory.
@@ -117,7 +117,7 @@ Result UnmapTransferMemory(Core::System& system, Handle trmem_handle, uint64_t a
     // Verify that the mapping is in range.
     R_UNLESS(GetCurrentProcess(system.Kernel())
                  .GetPageTable()
-                 .CanContain(address, size, KMemoryState::Transfered),
+                 .CanContain(address, size, KMemoryState::Transferred),
              ResultInvalidMemoryRegion);
 
     // Unmap the transfer memory.

src/core/hle/kernel/svc_types.h

@@ -27,8 +27,8 @@ enum class MemoryState : u32 {
     Ipc = 0x0A,
     Stack = 0x0B,
     ThreadLocal = 0x0C,
-    Transfered = 0x0D,
-    SharedTransfered = 0x0E,
+    Transferred = 0x0D,
+    SharedTransferred = 0x0E,
     SharedCode = 0x0F,
     Inaccessible = 0x10,
     NonSecureIpc = 0x11,

src/core/hle/service/am/am.cpp

@@ -13,7 +13,6 @@
 #include "core/file_sys/patch_manager.h"
 #include "core/file_sys/registered_cache.h"
 #include "core/file_sys/savedata_factory.h"
-#include "core/hid/hid_types.h"
 #include "core/hle/kernel/k_event.h"
 #include "core/hle/kernel/k_transfer_memory.h"
 #include "core/hle/result.h"
@@ -37,7 +36,7 @@
 #include "core/hle/service/caps/caps_su.h"
 #include "core/hle/service/caps/caps_types.h"
 #include "core/hle/service/filesystem/filesystem.h"
-#include "core/hle/service/hid/controllers/npad.h"
+#include "core/hle/service/filesystem/save_data_controller.h"
 #include "core/hle/service/ipc_helpers.h"
 #include "core/hle/service/ns/ns.h"
 #include "core/hle/service/nvnflinger/fb_share_buffer_manager.h"
@@ -48,6 +47,8 @@
 #include "core/hle/service/vi/vi.h"
 #include "core/hle/service/vi/vi_results.h"
 #include "core/memory.h"
+#include "hid_core/hid_types.h"
+#include "hid_core/resources/npad/npad.h"
 
 namespace Service::AM {
 
@@ -2178,7 +2179,7 @@ void IApplicationFunctions::EnsureSaveData(HLERequestContext& ctx) {
     attribute.type = FileSys::SaveDataType::SaveData;
 
     FileSys::VirtualDir save_data{};
-    const auto res = system.GetFileSystemController().CreateSaveData(
+    const auto res = system.GetFileSystemController().OpenSaveDataController()->CreateSaveData(
         &save_data, FileSys::SaveDataSpaceId::NandUser, attribute);
 
     IPC::ResponseBuilder rb{ctx, 4};
@@ -2353,7 +2354,7 @@ void IApplicationFunctions::ExtendSaveData(HLERequestContext& ctx) {
               "new_journal={:016X}",
               static_cast<u8>(type), user_id[1], user_id[0], new_normal_size, new_journal_size);
 
-    system.GetFileSystemController().WriteSaveDataSize(
+    system.GetFileSystemController().OpenSaveDataController()->WriteSaveDataSize(
         type, system.GetApplicationProcessProgramID(), user_id,
         {new_normal_size, new_journal_size});
 
@@ -2378,7 +2379,7 @@ void IApplicationFunctions::GetSaveDataSize(HLERequestContext& ctx) {
     LOG_DEBUG(Service_AM, "called with type={:02X}, user_id={:016X}{:016X}", type, user_id[1],
               user_id[0]);
 
-    const auto size = system.GetFileSystemController().ReadSaveDataSize(
+    const auto size = system.GetFileSystemController().OpenSaveDataController()->ReadSaveDataSize(
         type, system.GetApplicationProcessProgramID(), user_id);
 
     IPC::ResponseBuilder rb{ctx, 6};

src/core/hle/service/am/applets/applet_cabinet.cpp

@@ -5,13 +5,13 @@
 #include "common/logging/log.h"
 #include "core/core.h"
 #include "core/frontend/applets/cabinet.h"
-#include "core/hid/hid_core.h"
 #include "core/hle/kernel/k_event.h"
 #include "core/hle/kernel/k_readable_event.h"
 #include "core/hle/service/am/am.h"
 #include "core/hle/service/am/applets/applet_cabinet.h"
 #include "core/hle/service/mii/mii_manager.h"
 #include "core/hle/service/nfc/common/device.h"
+#include "hid_core/hid_core.h"
 
 namespace Service::AM::Applets {
 

src/core/hle/service/am/applets/applet_controller.cpp

@@ -9,13 +9,13 @@
 #include "common/string_util.h"
 #include "core/core.h"
 #include "core/frontend/applets/controller.h"
-#include "core/hid/emulated_controller.h"
-#include "core/hid/hid_core.h"
-#include "core/hid/hid_types.h"
 #include "core/hle/result.h"
 #include "core/hle/service/am/am.h"
 #include "core/hle/service/am/applets/applet_controller.h"
-#include "core/hle/service/hid/controllers/npad.h"
+#include "hid_core/frontend/emulated_controller.h"
+#include "hid_core/hid_core.h"
+#include "hid_core/hid_types.h"
+#include "hid_core/resources/npad/npad.h"
 
 namespace Service::AM::Applets {
 

src/core/hle/service/am/applets/applet_profile_select.h

@@ -76,7 +76,7 @@ struct UiSettingsDisplayOptions {
     bool is_system_or_launcher;
     bool is_registration_permitted;
     bool show_skip_button;
-    bool aditional_select;
+    bool additional_select;
     bool show_user_selector;
     bool is_unqualified_user_selectable;
 };

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

@@ -18,11 +18,11 @@ using namespace AudioCore::AudioIn;
 class IAudioIn final : public ServiceFramework<IAudioIn> {
 public:
     explicit IAudioIn(Core::System& system_, Manager& manager, size_t session_id,
-                      const std::string& device_name, const AudioInParameter& in_params, u32 handle,
-                      u64 applet_resource_user_id)
+                      const std::string& device_name, const AudioInParameter& in_params,
+                      Kernel::KProcess* handle, u64 applet_resource_user_id)
         : ServiceFramework{system_, "IAudioIn"},
           service_context{system_, "IAudioIn"}, event{service_context.CreateEvent("AudioInEvent")},
-          impl{std::make_shared<In>(system_, manager, event, session_id)} {
+          process{handle}, impl{std::make_shared<In>(system_, manager, event, session_id)} {
         // clang-format off
         static const FunctionInfo functions[] = {
             {0, &IAudioIn::GetAudioInState, "GetAudioInState"},
@@ -45,6 +45,8 @@ public:
 
         RegisterHandlers(functions);
 
+        process->Open();
+
         if (impl->GetSystem()
                 .Initialize(device_name, in_params, handle, applet_resource_user_id)
                 .IsError()) {
@@ -55,6 +57,7 @@ public:
     ~IAudioIn() override {
         impl->Free();
         service_context.CloseEvent(event);
+        process->Close();
     }
 
     [[nodiscard]] std::shared_ptr<In> GetImpl() {
@@ -196,6 +199,7 @@ private:
 
     KernelHelpers::ServiceContext service_context;
     Kernel::KEvent* event;
+    Kernel::KProcess* process;
     std::shared_ptr<AudioCore::AudioIn::In> impl;
     Common::ScratchBuffer<u64> released_buffer;
 };
@@ -267,6 +271,14 @@ void AudInU::OpenAudioIn(HLERequestContext& ctx) {
     auto device_name = Common::StringFromBuffer(device_name_data);
     auto handle{ctx.GetCopyHandle(0)};
 
+    auto process{ctx.GetObjectFromHandle<Kernel::KProcess>(handle)};
+    if (process.IsNull()) {
+        LOG_ERROR(Service_Audio, "Failed to get process handle");
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(ResultUnknown);
+        return;
+    }
+
     std::scoped_lock l{impl->mutex};
     auto link{impl->LinkToManager()};
     if (link.IsError()) {
@@ -287,8 +299,9 @@ void AudInU::OpenAudioIn(HLERequestContext& ctx) {
     LOG_DEBUG(Service_Audio, "Opening new AudioIn, sessionid={}, free sessions={}", new_session_id,
               impl->num_free_sessions);
 
-    auto audio_in = std::make_shared<IAudioIn>(system, *impl, new_session_id, device_name,
-                                               in_params, handle, applet_resource_user_id);
+    auto audio_in =
+        std::make_shared<IAudioIn>(system, *impl, new_session_id, device_name, in_params,
+                                   process.GetPointerUnsafe(), applet_resource_user_id);
     impl->sessions[new_session_id] = audio_in->GetImpl();
     impl->applet_resource_user_ids[new_session_id] = applet_resource_user_id;
 
@@ -318,6 +331,14 @@ void AudInU::OpenAudioInProtocolSpecified(HLERequestContext& ctx) {
     auto device_name = Common::StringFromBuffer(device_name_data);
     auto handle{ctx.GetCopyHandle(0)};
 
+    auto process{ctx.GetObjectFromHandle<Kernel::KProcess>(handle)};
+    if (process.IsNull()) {
+        LOG_ERROR(Service_Audio, "Failed to get process handle");
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(ResultUnknown);
+        return;
+    }
+
     std::scoped_lock l{impl->mutex};
     auto link{impl->LinkToManager()};
     if (link.IsError()) {
@@ -338,8 +359,9 @@ void AudInU::OpenAudioInProtocolSpecified(HLERequestContext& ctx) {
     LOG_DEBUG(Service_Audio, "Opening new AudioIn, sessionid={}, free sessions={}", new_session_id,
               impl->num_free_sessions);
 
-    auto audio_in = std::make_shared<IAudioIn>(system, *impl, new_session_id, device_name,
-                                               in_params, handle, applet_resource_user_id);
+    auto audio_in =
+        std::make_shared<IAudioIn>(system, *impl, new_session_id, device_name, in_params,
+                                   process.GetPointerUnsafe(), applet_resource_user_id);
     impl->sessions[new_session_id] = audio_in->GetImpl();
     impl->applet_resource_user_ids[new_session_id] = applet_resource_user_id;
 

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

@@ -26,9 +26,10 @@ class IAudioOut final : public ServiceFramework<IAudioOut> {
 public:
     explicit IAudioOut(Core::System& system_, AudioCore::AudioOut::Manager& manager,
                        size_t session_id, const std::string& device_name,
-                       const AudioOutParameter& in_params, u32 handle, u64 applet_resource_user_id)
+                       const AudioOutParameter& in_params, Kernel::KProcess* handle,
+                       u64 applet_resource_user_id)
         : ServiceFramework{system_, "IAudioOut"}, service_context{system_, "IAudioOut"},
-          event{service_context.CreateEvent("AudioOutEvent")},
+          event{service_context.CreateEvent("AudioOutEvent")}, process{handle},
           impl{std::make_shared<AudioCore::AudioOut::Out>(system_, manager, event, session_id)} {
 
         // clang-format off
@@ -50,11 +51,14 @@ public:
         };
         // clang-format on
         RegisterHandlers(functions);
+
+        process->Open();
     }
 
     ~IAudioOut() override {
         impl->Free();
         service_context.CloseEvent(event);
+        process->Close();
     }
 
     [[nodiscard]] std::shared_ptr<AudioCore::AudioOut::Out> GetImpl() {
@@ -206,6 +210,7 @@ private:
 
     KernelHelpers::ServiceContext service_context;
     Kernel::KEvent* event;
+    Kernel::KProcess* process;
     std::shared_ptr<AudioCore::AudioOut::Out> impl;
     Common::ScratchBuffer<u64> released_buffer;
 };
@@ -257,6 +262,14 @@ void AudOutU::OpenAudioOut(HLERequestContext& ctx) {
     auto device_name = Common::StringFromBuffer(device_name_data);
     auto handle{ctx.GetCopyHandle(0)};
 
+    auto process{ctx.GetObjectFromHandle<Kernel::KProcess>(handle)};
+    if (process.IsNull()) {
+        LOG_ERROR(Service_Audio, "Failed to get process handle");
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(ResultUnknown);
+        return;
+    }
+
     auto link{impl->LinkToManager()};
     if (link.IsError()) {
         LOG_ERROR(Service_Audio, "Failed to link Audio Out to Audio Manager");
@@ -276,10 +289,11 @@ void AudOutU::OpenAudioOut(HLERequestContext& ctx) {
     LOG_DEBUG(Service_Audio, "Opening new AudioOut, sessionid={}, free sessions={}", new_session_id,
               impl->num_free_sessions);
 
-    auto audio_out = std::make_shared<IAudioOut>(system, *impl, new_session_id, device_name,
-                                                 in_params, handle, applet_resource_user_id);
-    result = audio_out->GetImpl()->GetSystem().Initialize(device_name, in_params, handle,
-                                                          applet_resource_user_id);
+    auto audio_out =
+        std::make_shared<IAudioOut>(system, *impl, new_session_id, device_name, in_params,
+                                    process.GetPointerUnsafe(), applet_resource_user_id);
+    result = audio_out->GetImpl()->GetSystem().Initialize(
+        device_name, in_params, process.GetPointerUnsafe(), applet_resource_user_id);
     if (result.IsError()) {
         LOG_ERROR(Service_Audio, "Failed to initialize the AudioOut System!");
         IPC::ResponseBuilder rb{ctx, 2};

src/core/hle/service/caps/caps_manager.cpp

@@ -85,7 +85,7 @@ Result AlbumManager::GetAlbumFileList(std::vector<AlbumEntry>& out_entries, Albu
 }
 
 Result AlbumManager::GetAlbumFileList(std::vector<ApplicationAlbumFileEntry>& out_entries,
-                                      ContentType contex_type, s64 start_posix_time,
+                                      ContentType content_type, s64 start_posix_time,
                                       s64 end_posix_time, u64 aruid) const {
     if (!is_mounted) {
         return ResultIsNotMounted;
@@ -94,7 +94,7 @@ Result AlbumManager::GetAlbumFileList(std::vector<ApplicationAlbumFileEntry>& ou
     std::vector<ApplicationAlbumEntry> album_entries;
     const auto start_date = ConvertToAlbumDateTime(start_posix_time);
     const auto end_date = ConvertToAlbumDateTime(end_posix_time);
-    const auto result = GetAlbumFileList(album_entries, contex_type, start_date, end_date, aruid);
+    const auto result = GetAlbumFileList(album_entries, content_type, start_date, end_date, aruid);
 
     if (result.IsError()) {
         return result;
@@ -113,14 +113,14 @@ Result AlbumManager::GetAlbumFileList(std::vector<ApplicationAlbumFileEntry>& ou
 }
 
 Result AlbumManager::GetAlbumFileList(std::vector<ApplicationAlbumEntry>& out_entries,
-                                      ContentType contex_type, AlbumFileDateTime start_date,
+                                      ContentType content_type, AlbumFileDateTime start_date,
                                       AlbumFileDateTime end_date, u64 aruid) const {
     if (!is_mounted) {
         return ResultIsNotMounted;
     }
 
     for (auto& [file_id, path] : album_files) {
-        if (file_id.type != contex_type) {
+        if (file_id.type != content_type) {
             continue;
         }
         if (file_id.date > start_date) {
@@ -139,7 +139,7 @@ Result AlbumManager::GetAlbumFileList(std::vector<ApplicationAlbumEntry>& out_en
             .hash{},
             .datetime = file_id.date,
             .storage = file_id.storage,
-            .content = contex_type,
+            .content = content_type,
             .unknown = 1,
         };
         out_entries.push_back(entry);

src/core/hle/service/caps/caps_manager.h

@@ -45,10 +45,10 @@ public:
     Result GetAlbumFileList(std::vector<AlbumEntry>& out_entries, AlbumStorage storage,
                             u8 flags) const;
     Result GetAlbumFileList(std::vector<ApplicationAlbumFileEntry>& out_entries,
-                            ContentType contex_type, s64 start_posix_time, s64 end_posix_time,
+                            ContentType content_type, s64 start_posix_time, s64 end_posix_time,
                             u64 aruid) const;
     Result GetAlbumFileList(std::vector<ApplicationAlbumEntry>& out_entries,
-                            ContentType contex_type, AlbumFileDateTime start_date,
+                            ContentType content_type, AlbumFileDateTime start_date,
                             AlbumFileDateTime end_date, u64 aruid) const;
     Result GetAutoSavingStorage(bool& out_is_autosaving) const;
     Result LoadAlbumScreenShotImage(LoadAlbumScreenShotImageOutput& out_image_output,

src/core/hle/service/caps/caps_result.h

@@ -12,7 +12,7 @@ constexpr Result ResultUnknown5(ErrorModule::Capture, 5);
 constexpr Result ResultUnknown6(ErrorModule::Capture, 6);
 constexpr Result ResultUnknown7(ErrorModule::Capture, 7);
 constexpr Result ResultOutOfRange(ErrorModule::Capture, 8);
-constexpr Result ResulInvalidTimestamp(ErrorModule::Capture, 12);
+constexpr Result ResultInvalidTimestamp(ErrorModule::Capture, 12);
 constexpr Result ResultInvalidStorage(ErrorModule::Capture, 13);
 constexpr Result ResultInvalidFileContents(ErrorModule::Capture, 14);
 constexpr Result ResultIsNotMounted(ErrorModule::Capture, 21);

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

@@ -24,15 +24,13 @@
 #include "core/hle/service/filesystem/fsp_ldr.h"
 #include "core/hle/service/filesystem/fsp_pr.h"
 #include "core/hle/service/filesystem/fsp_srv.h"
+#include "core/hle/service/filesystem/romfs_controller.h"
+#include "core/hle/service/filesystem/save_data_controller.h"
 #include "core/hle/service/server_manager.h"
 #include "core/loader/loader.h"
 
 namespace Service::FileSystem {
 
-// A default size for normal/journal save data size if application control metadata cannot be found.
-// This should be large enough to satisfy even the most extreme requirements (~4.2GB)
-constexpr u64 SUFFICIENT_SAVE_DATA_SIZE = 0xF0000000;
-
 static FileSys::VirtualDir GetDirectoryRelativeWrapped(FileSys::VirtualDir base,
                                                        std::string_view dir_name_) {
     std::string dir_name(Common::FS::SanitizePath(dir_name_));
@@ -297,145 +295,65 @@ FileSystemController::FileSystemController(Core::System& system_) : system{syste
 
 FileSystemController::~FileSystemController() = default;
 
-Result FileSystemController::RegisterRomFS(std::unique_ptr<FileSys::RomFSFactory>&& factory) {
-    romfs_factory = std::move(factory);
-    LOG_DEBUG(Service_FS, "Registered RomFS");
+Result FileSystemController::RegisterProcess(
+    ProcessId process_id, ProgramId program_id,
+    std::shared_ptr<FileSys::RomFSFactory>&& romfs_factory) {
+    std::scoped_lock lk{registration_lock};
+
+    registrations.emplace(process_id, Registration{
+                                          .program_id = program_id,
+                                          .romfs_factory = std::move(romfs_factory),
+                                          .save_data_factory = CreateSaveDataFactory(program_id),
+                                      });
+
+    LOG_DEBUG(Service_FS, "Registered for process {}", process_id);
     return ResultSuccess;
 }
 
-Result FileSystemController::RegisterSaveData(std::unique_ptr<FileSys::SaveDataFactory>&& factory) {
-    ASSERT_MSG(save_data_factory == nullptr, "Tried to register a second save data");
-    save_data_factory = std::move(factory);
-    LOG_DEBUG(Service_FS, "Registered save data");
+Result FileSystemController::OpenProcess(
+    ProgramId* out_program_id, std::shared_ptr<SaveDataController>* out_save_data_controller,
+    std::shared_ptr<RomFsController>* out_romfs_controller, ProcessId process_id) {
+    std::scoped_lock lk{registration_lock};
+
+    const auto it = registrations.find(process_id);
+    if (it == registrations.end()) {
+        return FileSys::ERROR_ENTITY_NOT_FOUND;
+    }
+
+    *out_program_id = it->second.program_id;
+    *out_save_data_controller =
+        std::make_shared<SaveDataController>(system, it->second.save_data_factory);
+    *out_romfs_controller =
+        std::make_shared<RomFsController>(it->second.romfs_factory, it->second.program_id);
     return ResultSuccess;
 }
 
-Result FileSystemController::RegisterSDMC(std::unique_ptr<FileSys::SDMCFactory>&& factory) {
-    ASSERT_MSG(sdmc_factory == nullptr, "Tried to register a second SDMC");
-    sdmc_factory = std::move(factory);
-    LOG_DEBUG(Service_FS, "Registered SDMC");
-    return ResultSuccess;
-}
-
-Result FileSystemController::RegisterBIS(std::unique_ptr<FileSys::BISFactory>&& factory) {
-    ASSERT_MSG(bis_factory == nullptr, "Tried to register a second BIS");
-    bis_factory = std::move(factory);
-    LOG_DEBUG(Service_FS, "Registered BIS");
-    return ResultSuccess;
-}
-
-void FileSystemController::SetPackedUpdate(FileSys::VirtualFile update_raw) {
+void FileSystemController::SetPackedUpdate(ProcessId process_id, FileSys::VirtualFile update_raw) {
     LOG_TRACE(Service_FS, "Setting packed update for romfs");
 
-    if (romfs_factory == nullptr)
+    std::scoped_lock lk{registration_lock};
+    const auto it = registrations.find(process_id);
+    if (it == registrations.end()) {
         return;
+    }
 
-    romfs_factory->SetPackedUpdate(std::move(update_raw));
+    it->second.romfs_factory->SetPackedUpdate(std::move(update_raw));
 }
 
-FileSys::VirtualFile FileSystemController::OpenRomFSCurrentProcess() const {
-    LOG_TRACE(Service_FS, "Opening RomFS for current process");
-
-    if (romfs_factory == nullptr) {
-        return nullptr;
-    }
-
-    return romfs_factory->OpenCurrentProcess(system.GetApplicationProcessProgramID());
+std::shared_ptr<SaveDataController> FileSystemController::OpenSaveDataController() {
+    return std::make_shared<SaveDataController>(system, CreateSaveDataFactory(ProgramId{}));
 }
 
-FileSys::VirtualFile FileSystemController::OpenPatchedRomFS(u64 title_id,
-                                                            FileSys::ContentRecordType type) const {
-    LOG_TRACE(Service_FS, "Opening patched RomFS for title_id={:016X}", title_id);
+std::shared_ptr<FileSys::SaveDataFactory> FileSystemController::CreateSaveDataFactory(
+    ProgramId program_id) {
+    using YuzuPath = Common::FS::YuzuPath;
+    const auto rw_mode = FileSys::Mode::ReadWrite;
 
-    if (romfs_factory == nullptr) {
-        return nullptr;
-    }
-
-    return romfs_factory->OpenPatchedRomFS(title_id, type);
-}
-
-FileSys::VirtualFile FileSystemController::OpenPatchedRomFSWithProgramIndex(
-    u64 title_id, u8 program_index, FileSys::ContentRecordType type) const {
-    LOG_TRACE(Service_FS, "Opening patched RomFS for title_id={:016X}, program_index={}", title_id,
-              program_index);
-
-    if (romfs_factory == nullptr) {
-        return nullptr;
-    }
-
-    return romfs_factory->OpenPatchedRomFSWithProgramIndex(title_id, program_index, type);
-}
-
-FileSys::VirtualFile FileSystemController::OpenRomFS(u64 title_id, FileSys::StorageId storage_id,
-                                                     FileSys::ContentRecordType type) const {
-    LOG_TRACE(Service_FS, "Opening RomFS for title_id={:016X}, storage_id={:02X}, type={:02X}",
-              title_id, storage_id, type);
-
-    if (romfs_factory == nullptr) {
-        return nullptr;
-    }
-
-    return romfs_factory->Open(title_id, storage_id, type);
-}
-
-std::shared_ptr<FileSys::NCA> FileSystemController::OpenBaseNca(
-    u64 title_id, FileSys::StorageId storage_id, FileSys::ContentRecordType type) const {
-    return romfs_factory->GetEntry(title_id, storage_id, type);
-}
-
-Result FileSystemController::CreateSaveData(FileSys::VirtualDir* out_save_data,
-                                            FileSys::SaveDataSpaceId space,
-                                            const FileSys::SaveDataAttribute& save_struct) const {
-    LOG_TRACE(Service_FS, "Creating Save Data for space_id={:01X}, save_struct={}", space,
-              save_struct.DebugInfo());
-
-    if (save_data_factory == nullptr) {
-        return FileSys::ERROR_ENTITY_NOT_FOUND;
-    }
-
-    auto save_data = save_data_factory->Create(space, save_struct);
-    if (save_data == nullptr) {
-        return FileSys::ERROR_ENTITY_NOT_FOUND;
-    }
-
-    *out_save_data = save_data;
-    return ResultSuccess;
-}
-
-Result FileSystemController::OpenSaveData(FileSys::VirtualDir* out_save_data,
-                                          FileSys::SaveDataSpaceId space,
-                                          const FileSys::SaveDataAttribute& attribute) const {
-    LOG_TRACE(Service_FS, "Opening Save Data for space_id={:01X}, save_struct={}", space,
-              attribute.DebugInfo());
-
-    if (save_data_factory == nullptr) {
-        return FileSys::ERROR_ENTITY_NOT_FOUND;
-    }
-
-    auto save_data = save_data_factory->Open(space, attribute);
-    if (save_data == nullptr) {
-        return FileSys::ERROR_ENTITY_NOT_FOUND;
-    }
-
-    *out_save_data = save_data;
-    return ResultSuccess;
-}
-
-Result FileSystemController::OpenSaveDataSpace(FileSys::VirtualDir* out_save_data_space,
-                                               FileSys::SaveDataSpaceId space) const {
-    LOG_TRACE(Service_FS, "Opening Save Data Space for space_id={:01X}", space);
-
-    if (save_data_factory == nullptr) {
-        return FileSys::ERROR_ENTITY_NOT_FOUND;
-    }
-
-    auto save_data_space = save_data_factory->GetSaveDataSpaceDirectory(space);
-    if (save_data_space == nullptr) {
-        return FileSys::ERROR_ENTITY_NOT_FOUND;
-    }
-
-    *out_save_data_space = save_data_space;
-    return ResultSuccess;
+    auto vfs = system.GetFilesystem();
+    const auto nand_directory =
+        vfs->OpenDirectory(Common::FS::GetYuzuPathString(YuzuPath::NANDDir), rw_mode);
+    return std::make_shared<FileSys::SaveDataFactory>(system, program_id,
+                                                      std::move(nand_directory));
 }
 
 Result FileSystemController::OpenSDMC(FileSys::VirtualDir* out_sdmc) const {
@@ -540,48 +458,6 @@ u64 FileSystemController::GetTotalSpaceSize(FileSys::StorageId id) const {
     return 0;
 }
 
-FileSys::SaveDataSize FileSystemController::ReadSaveDataSize(FileSys::SaveDataType type,
-                                                             u64 title_id, u128 user_id) const {
-    if (save_data_factory == nullptr) {
-        return {0, 0};
-    }
-
-    const auto value = save_data_factory->ReadSaveDataSize(type, title_id, user_id);
-
-    if (value.normal == 0 && value.journal == 0) {
-        FileSys::SaveDataSize new_size{SUFFICIENT_SAVE_DATA_SIZE, SUFFICIENT_SAVE_DATA_SIZE};
-
-        FileSys::NACP nacp;
-        const auto res = system.GetAppLoader().ReadControlData(nacp);
-
-        if (res != Loader::ResultStatus::Success) {
-            const FileSys::PatchManager pm{system.GetApplicationProcessProgramID(),
-                                           system.GetFileSystemController(),
-                                           system.GetContentProvider()};
-            const auto metadata = pm.GetControlMetadata();
-            const auto& nacp_unique = metadata.first;
-
-            if (nacp_unique != nullptr) {
-                new_size = {nacp_unique->GetDefaultNormalSaveSize(),
-                            nacp_unique->GetDefaultJournalSaveSize()};
-            }
-        } else {
-            new_size = {nacp.GetDefaultNormalSaveSize(), nacp.GetDefaultJournalSaveSize()};
-        }
-
-        WriteSaveDataSize(type, title_id, user_id, new_size);
-        return new_size;
-    }
-
-    return value;
-}
-
-void FileSystemController::WriteSaveDataSize(FileSys::SaveDataType type, u64 title_id, u128 user_id,
-                                             FileSys::SaveDataSize new_value) const {
-    if (save_data_factory != nullptr)
-        save_data_factory->WriteSaveDataSize(type, title_id, user_id, new_value);
-}
-
 void FileSystemController::SetGameCard(FileSys::VirtualFile file) {
     gamecard = std::make_unique<FileSys::XCI>(file);
     const auto dir = gamecard->ConcatenatedPseudoDirectory();
@@ -801,14 +677,9 @@ FileSys::VirtualDir FileSystemController::GetBCATDirectory(u64 title_id) const {
     return bis_factory->GetBCATDirectory(title_id);
 }
 
-void FileSystemController::SetAutoSaveDataCreation(bool enable) {
-    save_data_factory->SetAutoCreate(enable);
-}
-
 void FileSystemController::CreateFactories(FileSys::VfsFilesystem& vfs, bool overwrite) {
     if (overwrite) {
         bis_factory = nullptr;
-        save_data_factory = nullptr;
         sdmc_factory = nullptr;
     }
 
@@ -836,11 +707,6 @@ void FileSystemController::CreateFactories(FileSys::VfsFilesystem& vfs, bool ove
                                        bis_factory->GetUserNANDContents());
     }
 
-    if (save_data_factory == nullptr) {
-        save_data_factory =
-            std::make_unique<FileSys::SaveDataFactory>(system, std::move(nand_directory));
-    }
-
     if (sdmc_factory == nullptr) {
         sdmc_factory = std::make_unique<FileSys::SDMCFactory>(std::move(sd_directory),
                                                               std::move(sd_load_directory));
@@ -849,12 +715,19 @@ void FileSystemController::CreateFactories(FileSys::VfsFilesystem& vfs, bool ove
     }
 }
 
+void FileSystemController::Reset() {
+    std::scoped_lock lk{registration_lock};
+    registrations.clear();
+}
+
 void LoopProcess(Core::System& system) {
     auto server_manager = std::make_unique<ServerManager>(system);
 
+    const auto FileSystemProxyFactory = [&] { return std::make_shared<FSP_SRV>(system); };
+
     server_manager->RegisterNamedService("fsp-ldr", std::make_shared<FSP_LDR>(system));
     server_manager->RegisterNamedService("fsp:pr", std::make_shared<FSP_PR>(system));
-    server_manager->RegisterNamedService("fsp-srv", std::make_shared<FSP_SRV>(system));
+    server_manager->RegisterNamedService("fsp-srv", std::move(FileSystemProxyFactory));
     ServerManager::RunServer(std::move(server_manager));
 }
 

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

@@ -43,6 +43,9 @@ class ServiceManager;
 
 namespace FileSystem {
 
+class RomFsController;
+class SaveDataController;
+
 enum class ContentStorageId : u32 {
     System,
     User,
@@ -61,32 +64,24 @@ enum class OpenDirectoryMode : u64 {
 };
 DECLARE_ENUM_FLAG_OPERATORS(OpenDirectoryMode);
 
+using ProcessId = u64;
+using ProgramId = u64;
+
 class FileSystemController {
 public:
     explicit FileSystemController(Core::System& system_);
     ~FileSystemController();
 
-    Result RegisterRomFS(std::unique_ptr<FileSys::RomFSFactory>&& factory);
-    Result RegisterSaveData(std::unique_ptr<FileSys::SaveDataFactory>&& factory);
-    Result RegisterSDMC(std::unique_ptr<FileSys::SDMCFactory>&& factory);
-    Result RegisterBIS(std::unique_ptr<FileSys::BISFactory>&& factory);
+    Result RegisterProcess(ProcessId process_id, ProgramId program_id,
+                           std::shared_ptr<FileSys::RomFSFactory>&& factory);
+    Result OpenProcess(ProgramId* out_program_id,
+                       std::shared_ptr<SaveDataController>* out_save_data_controller,
+                       std::shared_ptr<RomFsController>* out_romfs_controller,
+                       ProcessId process_id);
+    void SetPackedUpdate(ProcessId process_id, FileSys::VirtualFile update_raw);
 
-    void SetPackedUpdate(FileSys::VirtualFile update_raw);
-    FileSys::VirtualFile OpenRomFSCurrentProcess() const;
-    FileSys::VirtualFile OpenPatchedRomFS(u64 title_id, FileSys::ContentRecordType type) const;
-    FileSys::VirtualFile OpenPatchedRomFSWithProgramIndex(u64 title_id, u8 program_index,
-                                                          FileSys::ContentRecordType type) const;
-    FileSys::VirtualFile OpenRomFS(u64 title_id, FileSys::StorageId storage_id,
-                                   FileSys::ContentRecordType type) const;
-    std::shared_ptr<FileSys::NCA> OpenBaseNca(u64 title_id, FileSys::StorageId storage_id,
-                                              FileSys::ContentRecordType type) const;
+    std::shared_ptr<SaveDataController> OpenSaveDataController();
 
-    Result CreateSaveData(FileSys::VirtualDir* out_save_data, FileSys::SaveDataSpaceId space,
-                          const FileSys::SaveDataAttribute& save_struct) const;
-    Result OpenSaveData(FileSys::VirtualDir* out_save_data, FileSys::SaveDataSpaceId space,
-                        const FileSys::SaveDataAttribute& save_struct) const;
-    Result OpenSaveDataSpace(FileSys::VirtualDir* out_save_data_space,
-                             FileSys::SaveDataSpaceId space) const;
     Result OpenSDMC(FileSys::VirtualDir* out_sdmc) const;
     Result OpenBISPartition(FileSys::VirtualDir* out_bis_partition,
                             FileSys::BisPartitionId id) const;
@@ -96,11 +91,6 @@ public:
     u64 GetFreeSpaceSize(FileSys::StorageId id) const;
     u64 GetTotalSpaceSize(FileSys::StorageId id) const;
 
-    FileSys::SaveDataSize ReadSaveDataSize(FileSys::SaveDataType type, u64 title_id,
-                                           u128 user_id) const;
-    void WriteSaveDataSize(FileSys::SaveDataType type, u64 title_id, u128 user_id,
-                           FileSys::SaveDataSize new_value) const;
-
     void SetGameCard(FileSys::VirtualFile file);
     FileSys::XCI* GetGameCard() const;
 
@@ -133,15 +123,24 @@ public:
 
     FileSys::VirtualDir GetBCATDirectory(u64 title_id) const;
 
-    void SetAutoSaveDataCreation(bool enable);
-
     // Creates the SaveData, SDMC, and BIS Factories. Should be called once and before any function
     // above is called.
     void CreateFactories(FileSys::VfsFilesystem& vfs, bool overwrite = true);
 
+    void Reset();
+
 private:
-    std::unique_ptr<FileSys::RomFSFactory> romfs_factory;
-    std::unique_ptr<FileSys::SaveDataFactory> save_data_factory;
+    std::shared_ptr<FileSys::SaveDataFactory> CreateSaveDataFactory(ProgramId program_id);
+
+    struct Registration {
+        ProgramId program_id;
+        std::shared_ptr<FileSys::RomFSFactory> romfs_factory;
+        std::shared_ptr<FileSys::SaveDataFactory> save_data_factory;
+    };
+
+    std::mutex registration_lock;
+    std::map<ProcessId, Registration> registrations;
+
     std::unique_ptr<FileSys::SDMCFactory> sdmc_factory;
     std::unique_ptr<FileSys::BISFactory> bis_factory;
 

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

@@ -27,6 +27,8 @@
 #include "core/hle/result.h"
 #include "core/hle/service/filesystem/filesystem.h"
 #include "core/hle/service/filesystem/fsp_srv.h"
+#include "core/hle/service/filesystem/romfs_controller.h"
+#include "core/hle/service/filesystem/save_data_controller.h"
 #include "core/hle/service/hle_ipc.h"
 #include "core/hle/service/ipc_helpers.h"
 #include "core/reporter.h"
@@ -577,9 +579,11 @@ private:
 
 class ISaveDataInfoReader final : public ServiceFramework<ISaveDataInfoReader> {
 public:
-    explicit ISaveDataInfoReader(Core::System& system_, FileSys::SaveDataSpaceId space,
-                                 FileSystemController& fsc_)
-        : ServiceFramework{system_, "ISaveDataInfoReader"}, fsc{fsc_} {
+    explicit ISaveDataInfoReader(Core::System& system_,
+                                 std::shared_ptr<SaveDataController> save_data_controller_,
+                                 FileSys::SaveDataSpaceId space)
+        : ServiceFramework{system_, "ISaveDataInfoReader"}, save_data_controller{
+                                                                save_data_controller_} {
         static const FunctionInfo functions[] = {
             {0, &ISaveDataInfoReader::ReadSaveDataInfo, "ReadSaveDataInfo"},
         };
@@ -626,7 +630,7 @@ private:
 
     void FindAllSaves(FileSys::SaveDataSpaceId space) {
         FileSys::VirtualDir save_root{};
-        const auto result = fsc.OpenSaveDataSpace(&save_root, space);
+        const auto result = save_data_controller->OpenSaveDataSpace(&save_root, space);
 
         if (result != ResultSuccess || save_root == nullptr) {
             LOG_ERROR(Service_FS, "The save root for the space_id={:02X} was invalid!", space);
@@ -723,7 +727,8 @@ private:
     };
     static_assert(sizeof(SaveDataInfo) == 0x60, "SaveDataInfo has incorrect size.");
 
-    FileSystemController& fsc;
+    ProcessId process_id = 0;
+    std::shared_ptr<SaveDataController> save_data_controller;
     std::vector<SaveDataInfo> info;
     u64 next_entry_index = 0;
 };
@@ -863,21 +868,20 @@ FSP_SRV::FSP_SRV(Core::System& system_)
     if (Settings::values.enable_fs_access_log) {
         access_log_mode = AccessLogMode::SdCard;
     }
-
-    // This should be true on creation
-    fsc.SetAutoSaveDataCreation(true);
 }
 
 FSP_SRV::~FSP_SRV() = default;
 
 void FSP_SRV::SetCurrentProcess(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    current_process_id = rp.Pop<u64>();
+    current_process_id = ctx.GetPID();
 
     LOG_DEBUG(Service_FS, "called. current_process_id=0x{:016X}", current_process_id);
 
+    const auto res =
+        fsc.OpenProcess(&program_id, &save_data_controller, &romfs_controller, current_process_id);
+
     IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultSuccess);
+    rb.Push(res);
 }
 
 void FSP_SRV::OpenFileSystemWithPatch(HLERequestContext& ctx) {
@@ -916,7 +920,8 @@ void FSP_SRV::CreateSaveDataFileSystem(HLERequestContext& ctx) {
               uid[1], uid[0]);
 
     FileSys::VirtualDir save_data_dir{};
-    fsc.CreateSaveData(&save_data_dir, FileSys::SaveDataSpaceId::NandUser, save_struct);
+    save_data_controller->CreateSaveData(&save_data_dir, FileSys::SaveDataSpaceId::NandUser,
+                                         save_struct);
 
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(ResultSuccess);
@@ -931,7 +936,8 @@ void FSP_SRV::CreateSaveDataFileSystemBySystemSaveDataId(HLERequestContext& ctx)
     LOG_DEBUG(Service_FS, "called save_struct = {}", save_struct.DebugInfo());
 
     FileSys::VirtualDir save_data_dir{};
-    fsc.CreateSaveData(&save_data_dir, FileSys::SaveDataSpaceId::NandSystem, save_struct);
+    save_data_controller->CreateSaveData(&save_data_dir, FileSys::SaveDataSpaceId::NandSystem,
+                                         save_struct);
 
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(ResultSuccess);
@@ -950,7 +956,8 @@ void FSP_SRV::OpenSaveDataFileSystem(HLERequestContext& ctx) {
     LOG_INFO(Service_FS, "called.");
 
     FileSys::VirtualDir dir{};
-    auto result = fsc.OpenSaveData(&dir, parameters.space_id, parameters.attribute);
+    auto result =
+        save_data_controller->OpenSaveData(&dir, parameters.space_id, parameters.attribute);
     if (result != ResultSuccess) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 0};
         rb.Push(FileSys::ERROR_ENTITY_NOT_FOUND);
@@ -1001,7 +1008,7 @@ void FSP_SRV::OpenSaveDataInfoReaderBySaveDataSpaceId(HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(ResultSuccess);
     rb.PushIpcInterface<ISaveDataInfoReader>(
-        std::make_shared<ISaveDataInfoReader>(system, space, fsc));
+        std::make_shared<ISaveDataInfoReader>(system, save_data_controller, space));
 }
 
 void FSP_SRV::OpenSaveDataInfoReaderOnlyCacheStorage(HLERequestContext& ctx) {
@@ -1009,8 +1016,8 @@ void FSP_SRV::OpenSaveDataInfoReaderOnlyCacheStorage(HLERequestContext& ctx) {
 
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(ResultSuccess);
-    rb.PushIpcInterface<ISaveDataInfoReader>(system, FileSys::SaveDataSpaceId::TemporaryStorage,
-                                             fsc);
+    rb.PushIpcInterface<ISaveDataInfoReader>(system, save_data_controller,
+                                             FileSys::SaveDataSpaceId::TemporaryStorage);
 }
 
 void FSP_SRV::WriteSaveDataFileSystemExtraDataBySaveDataAttribute(HLERequestContext& ctx) {
@@ -1050,7 +1057,7 @@ void FSP_SRV::OpenDataStorageByCurrentProcess(HLERequestContext& ctx) {
     LOG_DEBUG(Service_FS, "called");
 
     if (!romfs) {
-        auto current_romfs = fsc.OpenRomFSCurrentProcess();
+        auto current_romfs = romfs_controller->OpenRomFSCurrentProcess();
         if (!current_romfs) {
             // TODO (bunnei): Find the right error code to use here
             LOG_CRITICAL(Service_FS, "no file system interface available!");
@@ -1078,7 +1085,7 @@ void FSP_SRV::OpenDataStorageByDataId(HLERequestContext& ctx) {
     LOG_DEBUG(Service_FS, "called with storage_id={:02X}, unknown={:08X}, title_id={:016X}",
               storage_id, unknown, title_id);
 
-    auto data = fsc.OpenRomFS(title_id, storage_id, FileSys::ContentRecordType::Data);
+    auto data = romfs_controller->OpenRomFS(title_id, storage_id, FileSys::ContentRecordType::Data);
 
     if (!data) {
         const auto archive = FileSys::SystemArchive::SynthesizeSystemArchive(title_id);
@@ -1101,7 +1108,8 @@ void FSP_SRV::OpenDataStorageByDataId(HLERequestContext& ctx) {
 
     const FileSys::PatchManager pm{title_id, fsc, content_provider};
 
-    auto base = fsc.OpenBaseNca(title_id, storage_id, FileSys::ContentRecordType::Data);
+    auto base =
+        romfs_controller->OpenBaseNca(title_id, storage_id, FileSys::ContentRecordType::Data);
     auto storage = std::make_shared<IStorage>(
         system, pm.PatchRomFS(base.get(), std::move(data), FileSys::ContentRecordType::Data));
 
@@ -1129,9 +1137,8 @@ void FSP_SRV::OpenDataStorageWithProgramIndex(HLERequestContext& ctx) {
 
     LOG_DEBUG(Service_FS, "called, program_index={}", program_index);
 
-    auto patched_romfs =
-        fsc.OpenPatchedRomFSWithProgramIndex(system.GetApplicationProcessProgramID(), program_index,
-                                             FileSys::ContentRecordType::Program);
+    auto patched_romfs = romfs_controller->OpenPatchedRomFSWithProgramIndex(
+        program_id, program_index, FileSys::ContentRecordType::Program);
 
     if (!patched_romfs) {
         // TODO: Find the right error code to use here
@@ -1152,7 +1159,7 @@ void FSP_SRV::OpenDataStorageWithProgramIndex(HLERequestContext& ctx) {
 void FSP_SRV::DisableAutoSaveDataCreation(HLERequestContext& ctx) {
     LOG_DEBUG(Service_FS, "called");
 
-    fsc.SetAutoSaveDataCreation(false);
+    save_data_controller->SetAutoCreate(false);
 
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(ResultSuccess);

src/core/hle/service/filesystem/fsp_srv.h

@@ -17,6 +17,9 @@ class FileSystemBackend;
 
 namespace Service::FileSystem {
 
+class RomFsController;
+class SaveDataController;
+
 enum class AccessLogVersion : u32 {
     V7_0_0 = 2,
 
@@ -67,6 +70,9 @@ private:
     u64 current_process_id = 0;
     u32 access_log_program_index = 0;
     AccessLogMode access_log_mode = AccessLogMode::None;
+    u64 program_id = 0;
+    std::shared_ptr<SaveDataController> save_data_controller;
+    std::shared_ptr<RomFsController> romfs_controller;
 };
 
 } // namespace Service::FileSystem

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

@@ -0,0 +1,37 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/filesystem/romfs_controller.h"
+
+namespace Service::FileSystem {
+
+RomFsController::RomFsController(std::shared_ptr<FileSys::RomFSFactory> factory_, u64 program_id_)
+    : factory{std::move(factory_)}, program_id{program_id_} {}
+RomFsController::~RomFsController() = default;
+
+FileSys::VirtualFile RomFsController::OpenRomFSCurrentProcess() {
+    return factory->OpenCurrentProcess(program_id);
+}
+
+FileSys::VirtualFile RomFsController::OpenPatchedRomFS(u64 title_id,
+                                                       FileSys::ContentRecordType type) {
+    return factory->OpenPatchedRomFS(title_id, type);
+}
+
+FileSys::VirtualFile RomFsController::OpenPatchedRomFSWithProgramIndex(
+    u64 title_id, u8 program_index, FileSys::ContentRecordType type) {
+    return factory->OpenPatchedRomFSWithProgramIndex(title_id, program_index, type);
+}
+
+FileSys::VirtualFile RomFsController::OpenRomFS(u64 title_id, FileSys::StorageId storage_id,
+                                                FileSys::ContentRecordType type) {
+    return factory->Open(title_id, storage_id, type);
+}
+
+std::shared_ptr<FileSys::NCA> RomFsController::OpenBaseNca(u64 title_id,
+                                                           FileSys::StorageId storage_id,
+                                                           FileSys::ContentRecordType type) {
+    return factory->GetEntry(title_id, storage_id, type);
+}
+
+} // namespace Service::FileSystem

src/core/hle/service/filesystem/romfs_controller.h

@@ -0,0 +1,31 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/file_sys/nca_metadata.h"
+#include "core/file_sys/romfs_factory.h"
+#include "core/file_sys/vfs_types.h"
+
+namespace Service::FileSystem {
+
+class RomFsController {
+public:
+    explicit RomFsController(std::shared_ptr<FileSys::RomFSFactory> factory_, u64 program_id_);
+    ~RomFsController();
+
+    FileSys::VirtualFile OpenRomFSCurrentProcess();
+    FileSys::VirtualFile OpenPatchedRomFS(u64 title_id, FileSys::ContentRecordType type);
+    FileSys::VirtualFile OpenPatchedRomFSWithProgramIndex(u64 title_id, u8 program_index,
+                                                          FileSys::ContentRecordType type);
+    FileSys::VirtualFile OpenRomFS(u64 title_id, FileSys::StorageId storage_id,
+                                   FileSys::ContentRecordType type);
+    std::shared_ptr<FileSys::NCA> OpenBaseNca(u64 title_id, FileSys::StorageId storage_id,
+                                              FileSys::ContentRecordType type);
+
+private:
+    const std::shared_ptr<FileSys::RomFSFactory> factory;
+    const u64 program_id;
+};
+
+} // namespace Service::FileSystem

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

@@ -0,0 +1,99 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/file_sys/control_metadata.h"
+#include "core/file_sys/errors.h"
+#include "core/file_sys/patch_manager.h"
+#include "core/hle/service/filesystem/save_data_controller.h"
+#include "core/loader/loader.h"
+
+namespace Service::FileSystem {
+
+namespace {
+
+// A default size for normal/journal save data size if application control metadata cannot be found.
+// This should be large enough to satisfy even the most extreme requirements (~4.2GB)
+constexpr u64 SufficientSaveDataSize = 0xF0000000;
+
+FileSys::SaveDataSize GetDefaultSaveDataSize(Core::System& system, u64 program_id) {
+    const FileSys::PatchManager pm{program_id, system.GetFileSystemController(),
+                                   system.GetContentProvider()};
+    const auto metadata = pm.GetControlMetadata();
+    const auto& nacp = metadata.first;
+
+    if (nacp != nullptr) {
+        return {nacp->GetDefaultNormalSaveSize(), nacp->GetDefaultJournalSaveSize()};
+    }
+
+    return {SufficientSaveDataSize, SufficientSaveDataSize};
+}
+
+} // namespace
+
+SaveDataController::SaveDataController(Core::System& system_,
+                                       std::shared_ptr<FileSys::SaveDataFactory> factory_)
+    : system{system_}, factory{std::move(factory_)} {}
+SaveDataController::~SaveDataController() = default;
+
+Result SaveDataController::CreateSaveData(FileSys::VirtualDir* out_save_data,
+                                          FileSys::SaveDataSpaceId space,
+                                          const FileSys::SaveDataAttribute& attribute) {
+    LOG_TRACE(Service_FS, "Creating Save Data for space_id={:01X}, save_struct={}", space,
+              attribute.DebugInfo());
+
+    auto save_data = factory->Create(space, attribute);
+    if (save_data == nullptr) {
+        return FileSys::ERROR_ENTITY_NOT_FOUND;
+    }
+
+    *out_save_data = save_data;
+    return ResultSuccess;
+}
+
+Result SaveDataController::OpenSaveData(FileSys::VirtualDir* out_save_data,
+                                        FileSys::SaveDataSpaceId space,
+                                        const FileSys::SaveDataAttribute& attribute) {
+    auto save_data = factory->Open(space, attribute);
+    if (save_data == nullptr) {
+        return FileSys::ERROR_ENTITY_NOT_FOUND;
+    }
+
+    *out_save_data = save_data;
+    return ResultSuccess;
+}
+
+Result SaveDataController::OpenSaveDataSpace(FileSys::VirtualDir* out_save_data_space,
+                                             FileSys::SaveDataSpaceId space) {
+    auto save_data_space = factory->GetSaveDataSpaceDirectory(space);
+    if (save_data_space == nullptr) {
+        return FileSys::ERROR_ENTITY_NOT_FOUND;
+    }
+
+    *out_save_data_space = save_data_space;
+    return ResultSuccess;
+}
+
+FileSys::SaveDataSize SaveDataController::ReadSaveDataSize(FileSys::SaveDataType type, u64 title_id,
+                                                           u128 user_id) {
+    const auto value = factory->ReadSaveDataSize(type, title_id, user_id);
+
+    if (value.normal == 0 && value.journal == 0) {
+        const auto size = GetDefaultSaveDataSize(system, title_id);
+        factory->WriteSaveDataSize(type, title_id, user_id, size);
+        return size;
+    }
+
+    return value;
+}
+
+void SaveDataController::WriteSaveDataSize(FileSys::SaveDataType type, u64 title_id, u128 user_id,
+                                           FileSys::SaveDataSize new_value) {
+    factory->WriteSaveDataSize(type, title_id, user_id, new_value);
+}
+
+void SaveDataController::SetAutoCreate(bool state) {
+    factory->SetAutoCreate(state);
+}
+
+} // namespace Service::FileSystem

src/core/hle/service/filesystem/save_data_controller.h

@@ -0,0 +1,35 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/file_sys/nca_metadata.h"
+#include "core/file_sys/savedata_factory.h"
+#include "core/file_sys/vfs_types.h"
+
+namespace Service::FileSystem {
+
+class SaveDataController {
+public:
+    explicit SaveDataController(Core::System& system,
+                                std::shared_ptr<FileSys::SaveDataFactory> factory_);
+    ~SaveDataController();
+
+    Result CreateSaveData(FileSys::VirtualDir* out_save_data, FileSys::SaveDataSpaceId space,
+                          const FileSys::SaveDataAttribute& attribute);
+    Result OpenSaveData(FileSys::VirtualDir* out_save_data, FileSys::SaveDataSpaceId space,
+                        const FileSys::SaveDataAttribute& attribute);
+    Result OpenSaveDataSpace(FileSys::VirtualDir* out_save_data_space,
+                             FileSys::SaveDataSpaceId space);
+
+    FileSys::SaveDataSize ReadSaveDataSize(FileSys::SaveDataType type, u64 title_id, u128 user_id);
+    void WriteSaveDataSize(FileSys::SaveDataType type, u64 title_id, u128 user_id,
+                           FileSys::SaveDataSize new_value);
+    void SetAutoCreate(bool state);
+
+private:
+    Core::System& system;
+    const std::shared_ptr<FileSys::SaveDataFactory> factory;
+};
+
+} // namespace Service::FileSystem

src/core/hle/service/friend/friend.cpp

@@ -131,7 +131,7 @@ private:
         u8 is_favorite;
         u8 same_app;
         u8 same_app_played;
-        u8 arbitary_app_played;
+        u8 arbitrary_app_played;
         u64 group_id;
     };
     static_assert(sizeof(SizedFriendFilter) == 0x10, "SizedFriendFilter is an invalid size");

src/core/hle/service/glue/arp.cpp

@@ -15,9 +15,10 @@
 namespace Service::Glue {
 
 namespace {
-std::optional<u64> GetTitleIDForProcessID(const Core::System& system, u64 process_id) {
-    const auto& list = system.Kernel().GetProcessList();
-    const auto iter = std::find_if(list.begin(), list.end(), [&process_id](const auto& process) {
+std::optional<u64> GetTitleIDForProcessID(Core::System& system, u64 process_id) {
+    auto list = system.Kernel().GetProcessList();
+
+    const auto iter = std::find_if(list.begin(), list.end(), [&process_id](auto& process) {
         return process->GetProcessId() == process_id;
     });