Developer option for booting with 16K pages am: 8996ca9768 am: acd2de2533

Original change: https://android-review.googlesource.com/c/platform/packages/apps/Settings/+/2705817

Change-Id: I8882b9feb7b34567de5f8a65d8932dac42446529
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 7118886..09e687e 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -11325,6 +11325,15 @@
     <!-- Developer Settings: Search keywords for the Profile HWUI rendering. [CHAR_LIMIT=NONE] -->
     <string name="track_frame_time_keywords">GPU</string>
 
+    <!-- setting Checkbox title whether to boot with 16K page size [CHAR_LIMIT=35] -->
+    <string name="enable_16k_pages">Boot with 16K page size</string>
+    <!-- setting Checkbox summary whether to boot with 16K page size[CHAR_LIMIT=50] -->
+    <string name="enable_16k_pages_summary">Boot device using 16K page size supported kernel</string>
+    <!-- Confirmation dialog title to ensure user wishes to enable 16K page size -->
+    <string name="confirm_enable_16k_pages_title">Reboot with 16K page compatible kernel?</string>
+    <!-- Warning dialog message to confirm user wishes to enable 16K page size -->
+    <string name="confirm_enable_16k_pages_text">WARNING: Some applications may not be compatible with this mode</string>
+
     <!-- DSU Loader. Do not translate. -->
     <string name="dsu_loader_title" translatable="false">DSU Loader</string>
     <!-- DSU Loader Description. Do not translate. -->
diff --git a/res/xml/development_settings.xml b/res/xml/development_settings.xml
index 32acac6..c11829c 100644
--- a/res/xml/development_settings.xml
+++ b/res/xml/development_settings.xml
@@ -107,6 +107,12 @@
             android:summary="@string/oem_unlock_enable_summary"
             settings:useAdditionalSummary="true" />
 
+        <SwitchPreference
+            android:key="enable_16k_pages"
+            android:title="@string/enable_16k_pages"
+            android:summary="@string/enable_16k_pages_summary"
+            settings:useAdditionalSummary="true" />
+
         <Preference
             android:key="running_apps"
             android:title="@string/runningservices_settings_title"
diff --git a/src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java b/src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java
index 047b219..7c49956 100644
--- a/src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java
+++ b/src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java
@@ -628,6 +628,7 @@
         controllers.add(new BluetoothSnoopLogFilterProfilePbapPreferenceController(context));
         controllers.add(new BluetoothSnoopLogFilterProfileMapPreferenceController(context));
         controllers.add(new OemUnlockPreferenceController(context, activity, fragment));
+        controllers.add(new Enable16kPagesPreferenceController(context, fragment));
         controllers.add(new PictureColorModePreferenceController(context, lifecycle));
         controllers.add(new WebViewAppPreferenceController(context));
         controllers.add(new CoolColorTemperaturePreferenceController(context));
diff --git a/src/com/android/settings/development/Enable16kPagesPreferenceController.java b/src/com/android/settings/development/Enable16kPagesPreferenceController.java
new file mode 100644
index 0000000..9aadd73
--- /dev/null
+++ b/src/com/android/settings/development/Enable16kPagesPreferenceController.java
@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.development;
+
+import android.content.Context;
+import android.os.SystemProperties;
+import android.provider.Settings;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.preference.Preference;
+import androidx.preference.SwitchPreference;
+
+import com.android.settings.core.PreferenceControllerMixin;
+import com.android.settingslib.development.DeveloperOptionsPreferenceController;
+
+/** Controller for 16K pages developer option */
+public class Enable16kPagesPreferenceController extends DeveloperOptionsPreferenceController
+        implements Preference.OnPreferenceChangeListener,
+                PreferenceControllerMixin,
+                Enable16kbPagesDialogHost {
+
+    private static final String ENABLE_16K_PAGES = "enable_16k_pages";
+    private static final String DEV_OPTION_PROPERTY = "ro.product.build.16k_page.enabled";
+    private static final int ENABLE_4K_PAGE_SIZE = 0;
+    private static final int ENABLE_16K_PAGE_SIZE = 1;
+
+    private @Nullable DevelopmentSettingsDashboardFragment mFragment = null;
+
+    public Enable16kPagesPreferenceController(
+            @NonNull Context context, @Nullable DevelopmentSettingsDashboardFragment fragment) {
+        super(context);
+        mFragment = fragment;
+    }
+
+    @Override
+    public boolean isAvailable() {
+        return SystemProperties.getBoolean(DEV_OPTION_PROPERTY, false);
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return ENABLE_16K_PAGES;
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        final boolean optionEnabled = (Boolean) newValue;
+        if (optionEnabled) {
+            Enable16kPagesWarningDialog.show(mFragment, this);
+        } else {
+            // TODO(b/295573133):Directly reboot into 4k
+        }
+        return true;
+    }
+
+    @Override
+    public void updateState(Preference preference) {
+        final int optionValue =
+                Settings.Global.getInt(
+                        mContext.getContentResolver(),
+                        Settings.Global.ENABLE_16K_PAGES,
+                        ENABLE_4K_PAGE_SIZE /* default */);
+
+        ((SwitchPreference) mPreference).setChecked(optionValue == ENABLE_16K_PAGE_SIZE);
+    }
+
+    @Override
+    protected void onDeveloperOptionsSwitchDisabled() {
+        // TODO(b/295573133):Directly reboot into 4k
+        super.onDeveloperOptionsSwitchDisabled();
+        Settings.Global.putInt(
+                mContext.getContentResolver(),
+                Settings.Global.ENABLE_16K_PAGES,
+                ENABLE_4K_PAGE_SIZE);
+        ((SwitchPreference) mPreference).setChecked(false);
+    }
+
+    /** Called when user confirms reboot dialog */
+    @Override
+    public void on16kPagesDialogConfirmed() {
+        // TODO(b/295573133) : integrate update engine
+    }
+
+    /** Called when user dismisses to reboot dialog */
+    @Override
+    public void on16kPagesDialogDismissed() {}
+}
diff --git a/src/com/android/settings/development/Enable16kPagesWarningDialog.java b/src/com/android/settings/development/Enable16kPagesWarningDialog.java
new file mode 100644
index 0000000..f141c93
--- /dev/null
+++ b/src/com/android/settings/development/Enable16kPagesWarningDialog.java
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.development;
+
+import android.app.Dialog;
+import android.app.settings.SettingsEnums;
+import android.content.DialogInterface;
+import android.os.Bundle;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AlertDialog;
+import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentManager;
+
+import com.android.settings.R;
+import com.android.settings.core.instrumentation.InstrumentedDialogFragment;
+
+/** Dialog when user interacts 16K pages developer option */
+public class Enable16kPagesWarningDialog extends InstrumentedDialogFragment
+        implements DialogInterface.OnClickListener, DialogInterface.OnDismissListener {
+
+    public static final String TAG = "Enable16KDialog";
+
+    private Enable16kbPagesDialogHost mHost;
+
+    private void setHost(@NonNull Enable16kbPagesDialogHost host) {
+        mHost = host;
+    }
+
+    /** Used to display warning dialog */
+    public static void show(
+            @NonNull Fragment hostFragment, @NonNull Enable16kbPagesDialogHost dialogHost) {
+        final FragmentManager manager = hostFragment.getActivity().getSupportFragmentManager();
+        Fragment existingFragment = manager.findFragmentByTag(TAG);
+        if (existingFragment == null) {
+            existingFragment = new Enable16kPagesWarningDialog();
+            existingFragment.setTargetFragment(hostFragment, 0 /* requestCode */);
+        }
+
+        if (existingFragment instanceof Enable16kPagesWarningDialog) {
+            ((Enable16kPagesWarningDialog) existingFragment).setHost(dialogHost);
+            ((Enable16kPagesWarningDialog) existingFragment).show(manager, TAG);
+        }
+    }
+
+    @Override
+    public int getMetricsCategory() {
+        return SettingsEnums.DIALOG_ENABLE_16K_PAGES;
+    }
+
+    @NonNull
+    @Override
+    public Dialog onCreateDialog(@Nullable Bundle savedInstanceState) {
+        return new AlertDialog.Builder(getActivity())
+                .setTitle(R.string.confirm_enable_16k_pages_title)
+                .setMessage(R.string.confirm_enable_16k_pages_text)
+                .setPositiveButton(android.R.string.ok, this /* onClickListener */)
+                .setNegativeButton(android.R.string.cancel, this /* onClickListener */)
+                .create();
+    }
+
+    @Override
+    public void onClick(@NonNull DialogInterface dialog, int buttonId) {
+        if (buttonId == DialogInterface.BUTTON_POSITIVE) {
+            mHost.on16kPagesDialogConfirmed();
+        } else {
+            mHost.on16kPagesDialogDismissed();
+        }
+    }
+
+    @Override
+    public void onDismiss(@NonNull DialogInterface dialog) {
+        super.onDismiss(dialog);
+        mHost.on16kPagesDialogDismissed();
+    }
+}
diff --git a/src/com/android/settings/development/Enable16kbPagesDialogHost.java b/src/com/android/settings/development/Enable16kbPagesDialogHost.java
new file mode 100644
index 0000000..fc54bd4
--- /dev/null
+++ b/src/com/android/settings/development/Enable16kbPagesDialogHost.java
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.development;
+
+/** Interface for Enable16kbPagesDialogHost callbacks. */
+public interface Enable16kbPagesDialogHost {
+    /** Callback when the user presses ok the warning dialog. */
+    void on16kPagesDialogConfirmed();
+
+    /** Callback when the user cancels or dismisses the warning dialog. */
+    void on16kPagesDialogDismissed();
+}