Developer option for booting with 16K pages

Adding developer option to boot with 16K compatible kernel. Adding resources, layouts and dialog classes for 16k option. This needs to integrated with update engine to make OTA switch happen. Test: m Settings && adb install -r $ANDROID_PRODUCT_OUT/system_ext/priv-app/Settings/Settings.apk Bug: 295035851 Bug: 294614538 Change-Id: I3a24fed059eee99407e3486a7254285e0e4a251c
2023-08-11 21:36:38 +00:00
parent 4f4bb89a23
commit 8996ca9768
6 changed files with 235 additions and 0 deletions
--- a/src/com/android/settings/development/Enable16kPagesPreferenceController.java
+++ 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() {}
+}