diff --git a/cmds/atrace/atrace.cpp b/cmds/atrace/atrace.cpp
index 544e26c..8637a31 100644
--- a/cmds/atrace/atrace.cpp
+++ b/cmds/atrace/atrace.cpp
@@ -233,6 +233,7 @@
         { REQ,      "events/filemap/enable" },
     } },
     { "memory",  "Memory", 0, {
+        { OPT,      "events/mm_event/mm_event_record/enable" },
         { OPT,      "events/kmem/rss_stat/enable" },
         { OPT,      "events/kmem/ion_heap_grow/enable" },
         { OPT,      "events/kmem/ion_heap_shrink/enable" },
diff --git a/cmds/atrace/atrace.rc b/cmds/atrace/atrace.rc
index 6e460a0..040ddde 100644
--- a/cmds/atrace/atrace.rc
+++ b/cmds/atrace/atrace.rc
@@ -107,6 +107,8 @@
     chmod 0666 /sys/kernel/tracing/events/kmem/ion_heap_grow/enable
     chmod 0666 /sys/kernel/debug/tracing/events/kmem/ion_heap_shrink/enable
     chmod 0666 /sys/kernel/tracing/events/kmem/ion_heap_shrink/enable
+    chmod 0666 /sys/kernel/debug/tracing/events/mm_event/mm_event_record/enable
+    chmod 0666 /sys/kernel/tracing/events/mm_event/mm_event_record/enable
     chmod 0666 /sys/kernel/debug/tracing/events/signal/signal_generate/enable
     chmod 0666 /sys/kernel/tracing/events/signal/signal_generate/enable
     chmod 0666 /sys/kernel/debug/tracing/events/signal/signal_deliver/enable
diff --git a/cmds/dumpstate/dumpstate.cpp b/cmds/dumpstate/dumpstate.cpp
index 310b5ce..f535605 100644
--- a/cmds/dumpstate/dumpstate.cpp
+++ b/cmds/dumpstate/dumpstate.cpp
@@ -1437,6 +1437,8 @@
         ds.AddDir(WMTRACE_DATA_DIR, false);
     }
 
+    ds.AddDir(SNAPSHOTCTL_LOG_DIR, false);
+
     RUN_SLOW_FUNCTION_WITH_CONSENT_CHECK(ds.DumpstateBoard);
 
     /* Migrate the ril_dumpstate to a device specific dumpstate? */
@@ -1569,7 +1571,6 @@
     ds.AddDir(RECOVERY_DATA_DIR, true);
     ds.AddDir(UPDATE_ENGINE_LOG_DIR, true);
     ds.AddDir(LOGPERSIST_DATA_DIR, false);
-    ds.AddDir(SNAPSHOTCTL_LOG_DIR, false);
     if (!PropertiesHelper::IsUserBuild()) {
         ds.AddDir(PROFILE_DATA_DIR_CUR, true);
         ds.AddDir(PROFILE_DATA_DIR_REF, true);
diff --git a/cmds/dumpsys/dumpsys.cpp b/cmds/dumpsys/dumpsys.cpp
index a427c8d..1327cfd 100644
--- a/cmds/dumpsys/dumpsys.cpp
+++ b/cmds/dumpsys/dumpsys.cpp
@@ -230,7 +230,7 @@
     }
 
     const size_t N = services.size();
-    if (N > 1) {
+    if (N > 1 || showListOnly) {
         // first print a list of the current services
         std::cout << "Currently running services:" << std::endl;
 
diff --git a/cmds/dumpsys/tests/dumpsys_test.cpp b/cmds/dumpsys/tests/dumpsys_test.cpp
index b9395ba..3467898 100644
--- a/cmds/dumpsys/tests/dumpsys_test.cpp
+++ b/cmds/dumpsys/tests/dumpsys_test.cpp
@@ -206,10 +206,7 @@
     }
 
     void AssertRunningServices(const std::vector<std::string>& services) {
-        std::string expected;
-        if (services.size() > 1) {
-            expected.append("Currently running services:\n");
-        }
+        std::string expected = "Currently running services:\n";
         for (const std::string& service : services) {
             expected.append("  ").append(service).append("\n");
         }
@@ -263,6 +260,21 @@
     AssertRunningServices({"Locksmith", "Valet"});
 }
 
+TEST_F(DumpsysTest, ListServicesOneRegistered) {
+    ExpectListServices({"Locksmith"});
+    ExpectCheckService("Locksmith");
+
+    CallMain({"-l"});
+
+    AssertRunningServices({"Locksmith"});
+}
+
+TEST_F(DumpsysTest, ListServicesEmpty) {
+    CallMain({"-l"});
+
+    AssertRunningServices({});
+}
+
 // Tests 'dumpsys -l' when a service is not running
 TEST_F(DumpsysTest, ListRunningServices) {
     ExpectListServices({"Locksmith", "Valet"});
diff --git a/cmds/installd/InstalldNativeService.cpp b/cmds/installd/InstalldNativeService.cpp
index dc0583e..6fee11b 100644
--- a/cmds/installd/InstalldNativeService.cpp
+++ b/cmds/installd/InstalldNativeService.cpp
@@ -42,6 +42,7 @@
 
 #include <android-base/file.h>
 #include <android-base/logging.h>
+#include <android-base/parseint.h>
 #include <android-base/properties.h>
 #include <android-base/scopeguard.h>
 #include <android-base/stringprintf.h>
@@ -74,6 +75,7 @@
 #define LOG_TAG "installd"
 #endif
 
+using android::base::ParseUint;
 using android::base::StringPrintf;
 using std::endl;
 
@@ -1090,6 +1092,43 @@
     return ok();
 }
 
+binder::Status InstalldNativeService::destroyCeSnapshotsNotSpecified(
+        const std::optional<std::string> &volumeUuid, const int32_t user,
+        const std::vector<int32_t>& retainSnapshotIds) {
+    ENFORCE_UID(AID_SYSTEM);
+    CHECK_ARGUMENT_UUID_IS_TEST_OR_NULL(volumeUuid);
+    std::lock_guard<std::recursive_mutex> lock(mLock);
+
+    const char* volume_uuid = volumeUuid ? volumeUuid->c_str() : nullptr;
+
+    auto base_path = create_data_misc_ce_rollback_base_path(volume_uuid, user);
+
+    std::unique_ptr<DIR, decltype(&closedir)> dir(opendir(base_path.c_str()), closedir);
+    if (!dir) {
+        return error(-1, "Failed to open rollback base dir " + base_path);
+    }
+
+    struct dirent* ent;
+    while ((ent = readdir(dir.get()))) {
+        if (ent->d_type != DT_DIR) {
+            continue;
+        }
+
+        uint snapshot_id;
+        bool parse_ok = ParseUint(ent->d_name, &snapshot_id);
+        if (parse_ok &&
+                std::find(retainSnapshotIds.begin(), retainSnapshotIds.end(),
+                          snapshot_id) == retainSnapshotIds.end()) {
+            auto rollback_path = create_data_misc_ce_rollback_path(
+                volume_uuid, user, snapshot_id);
+            int res = delete_dir_contents_and_dir(rollback_path, true /* ignore_if_missing */);
+            if (res != 0) {
+                return error(res, "Failed clearing snapshot " + rollback_path);
+            }
+        }
+    }
+    return ok();
+}
 
 binder::Status InstalldNativeService::moveCompleteApp(const std::optional<std::string>& fromUuid,
         const std::optional<std::string>& toUuid, const std::string& packageName,
diff --git a/cmds/installd/InstalldNativeService.h b/cmds/installd/InstalldNativeService.h
index 80a88b4..1a8da5f 100644
--- a/cmds/installd/InstalldNativeService.h
+++ b/cmds/installd/InstalldNativeService.h
@@ -69,6 +69,8 @@
     binder::Status destroyAppDataSnapshot(const std::optional<std::string> &volumeUuid,
             const std::string& packageName, const int32_t user, const int64_t ceSnapshotInode,
             const int32_t snapshotId, int32_t storageFlags);
+    binder::Status destroyCeSnapshotsNotSpecified(const std::optional<std::string> &volumeUuid,
+            const int32_t user, const std::vector<int32_t>& retainSnapshotIds);
 
     binder::Status getAppSize(const std::optional<std::string>& uuid,
             const std::vector<std::string>& packageNames, int32_t userId, int32_t flags,
diff --git a/cmds/installd/binder/android/os/IInstalld.aidl b/cmds/installd/binder/android/os/IInstalld.aidl
index d99bcc8..0b9a444 100644
--- a/cmds/installd/binder/android/os/IInstalld.aidl
+++ b/cmds/installd/binder/android/os/IInstalld.aidl
@@ -109,6 +109,8 @@
             int userId, int snapshotId, int storageFlags);
     void restoreAppDataSnapshot(@nullable @utf8InCpp String uuid, in @utf8InCpp String packageName,
             int appId, @utf8InCpp String seInfo, int user, int snapshotId, int storageflags);
+    void destroyCeSnapshotsNotSpecified(@nullable @utf8InCpp String uuid, int userId,
+            in int[] retainSnapshotIds);
     void destroyAppDataSnapshot(@nullable @utf8InCpp String uuid, @utf8InCpp String packageName,
             int userId, long ceSnapshotInode, int snapshotId, int storageFlags);
 
diff --git a/cmds/installd/dexopt.cpp b/cmds/installd/dexopt.cpp
index ebb8f0f..5e87faf 100644
--- a/cmds/installd/dexopt.cpp
+++ b/cmds/installd/dexopt.cpp
@@ -1273,11 +1273,6 @@
 Dex2oatFileWrapper maybe_open_app_image(const char* out_oat_path,
         bool generate_app_image, bool is_public, int uid, bool is_secondary_dex) {
 
-    // We don't create an image for secondary dex files.
-    if (is_secondary_dex) {
-        return Dex2oatFileWrapper();
-    }
-
     const std::string image_path = create_image_filename(out_oat_path);
     if (image_path.empty()) {
         // Happens when the out_oat_path has an unknown extension.
diff --git a/cmds/installd/otapreopt.cpp b/cmds/installd/otapreopt.cpp
index eefbe4f..d773790 100644
--- a/cmds/installd/otapreopt.cpp
+++ b/cmds/installd/otapreopt.cpp
@@ -138,10 +138,10 @@
             return 4;
         }
 
-        PrepareEnvironment();
+        PrepareEnvironmentVariables();
 
-        if (!PrepareBootImage(/* force */ false)) {
-            LOG(ERROR) << "Failed preparing boot image.";
+        if (!EnsureBootImageAndDalvikCache()) {
+            LOG(ERROR) << "Bad boot image.";
             return 5;
         }
 
@@ -302,7 +302,7 @@
         return parameters_.ReadArguments(argc, const_cast<const char**>(argv));
     }
 
-    void PrepareEnvironment() {
+    void PrepareEnvironmentVariables() {
         environ_.push_back(StringPrintf("BOOTCLASSPATH=%s", boot_classpath_.c_str()));
         environ_.push_back(StringPrintf("ANDROID_DATA=%s", GetOTADataDirectory().c_str()));
         environ_.push_back(StringPrintf("ANDROID_ROOT=%s", android_root_.c_str()));
@@ -312,9 +312,8 @@
         }
     }
 
-    // Ensure that we have the right boot image. The first time any app is
-    // compiled, we'll try to generate it.
-    bool PrepareBootImage(bool force) const {
+    // Ensure that we have the right boot image and cache file structures.
+    bool EnsureBootImageAndDalvikCache() const {
         if (parameters_.instruction_set == nullptr) {
             LOG(ERROR) << "Instruction set missing.";
             return false;
@@ -340,34 +339,19 @@
             }
         }
 
-        // Check whether we have files in /data.
+        // Clear cached artifacts.
+        ClearDirectory(isa_path);
+
+        // Check whether we have a boot image.
         // TODO: check that the files are correct wrt/ jars.
-        std::string art_path = isa_path + "/system@framework@boot.art";
-        std::string oat_path = isa_path + "/system@framework@boot.oat";
-        bool cleared = false;
-        if (access(art_path.c_str(), F_OK) == 0 && access(oat_path.c_str(), F_OK) == 0) {
-            // Files exist, assume everything is alright if not forced. Otherwise clean up.
-            if (!force) {
-                return true;
-            }
-            ClearDirectory(isa_path);
-            cleared = true;
+        std::string preopted_boot_art_path =
+            StringPrintf("/apex/com.android.art/javalib/%s/boot.art", isa);
+        if (access(preopted_boot_art_path.c_str(), F_OK) != 0) {
+            PLOG(ERROR) << "Bad access() to " << preopted_boot_art_path;
+            return false;
         }
 
-        // Check whether we have an image in /system.
-        // TODO: check that the files are correct wrt/ jars.
-        std::string preopted_boot_art_path = StringPrintf("/system/framework/%s/boot.art", isa);
-        if (access(preopted_boot_art_path.c_str(), F_OK) == 0) {
-            // Note: we ignore |force| here.
-            return true;
-        }
-
-
-        if (!cleared) {
-            ClearDirectory(isa_path);
-        }
-
-        return Dex2oatBootImage(boot_classpath_, art_path, oat_path, isa);
+        return true;
     }
 
     static bool CreatePath(const std::string& path) {
@@ -432,77 +416,6 @@
         CHECK_EQ(0, closedir(c_dir)) << "Unable to close directory.";
     }
 
-    bool Dex2oatBootImage(const std::string& boot_cp,
-                          const std::string& art_path,
-                          const std::string& oat_path,
-                          const char* isa) const {
-        // This needs to be kept in sync with ART, see art/runtime/gc/space/image_space.cc.
-        std::vector<std::string> cmd;
-        cmd.push_back(kDex2oatPath);
-        cmd.push_back(StringPrintf("--image=%s", art_path.c_str()));
-        for (const std::string& boot_part : Split(boot_cp, ":")) {
-            cmd.push_back(StringPrintf("--dex-file=%s", boot_part.c_str()));
-        }
-        cmd.push_back(StringPrintf("--oat-file=%s", oat_path.c_str()));
-
-        int32_t base_offset = ChooseRelocationOffsetDelta(
-                art::imagevalues::GetImageMinBaseAddressDelta(),
-                art::imagevalues::GetImageMaxBaseAddressDelta());
-        cmd.push_back(StringPrintf("--base=0x%x",
-                art::imagevalues::GetImageBaseAddress() + base_offset));
-
-        cmd.push_back(StringPrintf("--instruction-set=%s", isa));
-
-        // These things are pushed by AndroidRuntime, see frameworks/base/core/jni/AndroidRuntime.cpp.
-        AddCompilerOptionFromSystemProperty("dalvik.vm.image-dex2oat-Xms",
-                "-Xms",
-                true,
-                cmd);
-        AddCompilerOptionFromSystemProperty("dalvik.vm.image-dex2oat-Xmx",
-                "-Xmx",
-                true,
-                cmd);
-        AddCompilerOptionFromSystemProperty("dalvik.vm.image-dex2oat-filter",
-                "--compiler-filter=",
-                false,
-                cmd);
-        cmd.push_back("--profile-file=/system/etc/boot-image.prof");
-        // TODO: Compiled-classes.
-        const std::string* extra_opts =
-                system_properties_.GetProperty("dalvik.vm.image-dex2oat-flags");
-        if (extra_opts != nullptr) {
-            std::vector<std::string> extra_vals = Split(*extra_opts, " ");
-            cmd.insert(cmd.end(), extra_vals.begin(), extra_vals.end());
-        }
-        // TODO: Should we lower this? It's usually set close to max, because
-        //       normally there's not much else going on at boot.
-        AddCompilerOptionFromSystemProperty("dalvik.vm.image-dex2oat-threads",
-                "-j",
-                false,
-                cmd);
-        AddCompilerOptionFromSystemProperty("dalvik.vm.image-dex2oat-cpu-set",
-                "--cpu-set=",
-                false,
-                cmd);
-        AddCompilerOptionFromSystemProperty(
-                StringPrintf("dalvik.vm.isa.%s.variant", isa).c_str(),
-                "--instruction-set-variant=",
-                false,
-                cmd);
-        AddCompilerOptionFromSystemProperty(
-                StringPrintf("dalvik.vm.isa.%s.features", isa).c_str(),
-                "--instruction-set-features=",
-                false,
-                cmd);
-
-        std::string error_msg;
-        bool result = Exec(cmd, &error_msg);
-        if (!result) {
-            LOG(ERROR) << "Could not generate boot image: " << error_msg;
-        }
-        return result;
-    }
-
     static const char* ParseNull(const char* arg) {
         return (strcmp(arg, "!") == 0) ? nullptr : arg;
     }
@@ -592,22 +505,6 @@
             return 0;
         }
 
-        // If the dexopt failed, we may have a stale boot image from a previous OTA run.
-        // Then regenerate and retry.
-        if (WEXITSTATUS(dexopt_result) ==
-                static_cast<int>(::art::dex2oat::ReturnCode::kCreateRuntime)) {
-            if (!PrepareBootImage(/* force */ true)) {
-                LOG(ERROR) << "Forced boot image creating failed. Original error return was "
-                        << dexopt_result;
-                return dexopt_result;
-            }
-
-            int dexopt_result_boot_image_retry = Dexopt();
-            if (dexopt_result_boot_image_retry == 0) {
-                return 0;
-            }
-        }
-
         // If this was a profile-guided run, we may have profile version issues. Try to downgrade,
         // if possible.
         if ((parameters_.dexopt_flags & DEXOPT_PROFILE_GUIDED) == 0) {
diff --git a/cmds/installd/tests/installd_service_test.cpp b/cmds/installd/tests/installd_service_test.cpp
index 7278677..1e7559d 100644
--- a/cmds/installd/tests/installd_service_test.cpp
+++ b/cmds/installd/tests/installd_service_test.cpp
@@ -640,6 +640,46 @@
           "com.foo", 0, 0, 43, FLAG_STORAGE_DE).isOk());
 }
 
+TEST_F(AppDataSnapshotTest, DestroyCeSnapshotsNotSpecified) {
+  auto rollback_ce_dir_in_1 = create_data_misc_ce_rollback_path("TEST", 0, 1543);
+  auto rollback_ce_dir_in_2 = create_data_misc_ce_rollback_path("TEST", 0, 77);
+  auto rollback_ce_dir_out_1 = create_data_misc_ce_rollback_path("TEST", 0, 1500);
+  auto rollback_ce_dir_out_2 = create_data_misc_ce_rollback_path("TEST", 0, 2);
+
+  // Create snapshots
+  ASSERT_TRUE(mkdirs(rollback_ce_dir_in_1 + "/com.foo/", 0700));
+  ASSERT_TRUE(android::base::WriteStringToFile(
+          "CE_RESTORE_CONTENT", rollback_ce_dir_in_1 + "/com.foo/file1",
+          0700, 10000, 20000, false /* follow_symlinks */));
+
+  ASSERT_TRUE(mkdirs(rollback_ce_dir_in_2 + "/com.foo/", 0700));
+  ASSERT_TRUE(android::base::WriteStringToFile(
+          "CE_RESTORE_CONTENT", rollback_ce_dir_in_2 + "/com.foo/file1",
+          0700, 10000, 20000, false /* follow_symlinks */));
+
+  ASSERT_TRUE(mkdirs(rollback_ce_dir_out_1 + "/com.foo/", 0700));
+  ASSERT_TRUE(android::base::WriteStringToFile(
+          "CE_RESTORE_CONTENT", rollback_ce_dir_out_1 + "/com.foo/file1",
+          0700, 10000, 20000, false /* follow_symlinks */));
+
+  ASSERT_TRUE(mkdirs(rollback_ce_dir_out_2 + "/com.foo/", 0700));
+  ASSERT_TRUE(android::base::WriteStringToFile(
+          "CE_RESTORE_CONTENT", rollback_ce_dir_out_2 + "/com.foo/file1",
+          0700, 10000, 20000, false /* follow_symlinks */));
+
+  ASSERT_TRUE(service->destroyCeSnapshotsNotSpecified(
+          std::make_optional<std::string>("TEST"), 0, { 1543, 77 }).isOk());
+
+  // Check only snapshots not specified are deleted.
+  struct stat sb;
+  ASSERT_EQ(0, stat((rollback_ce_dir_in_1 + "/com.foo").c_str(), &sb));
+  ASSERT_EQ(0, stat((rollback_ce_dir_in_2 + "/com.foo").c_str(), &sb));
+  ASSERT_EQ(-1, stat((rollback_ce_dir_out_1 + "/com.foo").c_str(), &sb));
+  ASSERT_EQ(ENOENT, errno);
+  ASSERT_EQ(-1, stat((rollback_ce_dir_out_2 + "/com.foo").c_str(), &sb));
+  ASSERT_EQ(ENOENT, errno);
+}
+
 TEST_F(AppDataSnapshotTest, RestoreAppDataSnapshot_WrongVolumeUuid) {
   // Setup rollback data to make sure that fails due to wrong volumeUuid being
   // passed, not because of some other reason.
diff --git a/cmds/lshal/ListCommand.cpp b/cmds/lshal/ListCommand.cpp
index f426dbb..fb11cee 100644
--- a/cmds/lshal/ListCommand.cpp
+++ b/cmds/lshal/ListCommand.cpp
@@ -406,7 +406,7 @@
         return false;
     }
 
-    if (fqInstance.getPackage() == gIBaseFqName.package()) {
+    if (fqInstance.getPackage() == "android.hidl.base") {
         return true; // always remove IBase from manifest
     }
 
diff --git a/cmds/servicemanager/ServiceManager.cpp b/cmds/servicemanager/ServiceManager.cpp
index abe6436..cbbea12 100644
--- a/cmds/servicemanager/ServiceManager.cpp
+++ b/cmds/servicemanager/ServiceManager.cpp
@@ -522,6 +522,11 @@
         return Status::fromExceptionCode(Status::EX_ILLEGAL_STATE);
     }
 
+    if (serviceIt->second.guaranteeClient) {
+        LOG(INFO) << "Tried to unregister " << name << ", but there is about to be a client.";
+        return Status::fromExceptionCode(Status::EX_ILLEGAL_STATE);
+    }
+
     int clients = handleServiceClientCallback(name, false);
 
     // clients < 0: feature not implemented or other error. Assume clients.
@@ -532,6 +537,8 @@
     if (clients < 0 || clients > 2) {
         // client callbacks are either disabled or there are other clients
         LOG(INFO) << "Tried to unregister " << name << ", but there are clients: " << clients;
+        // Set this flag to ensure the clients are acknowledged in the next callback
+        serviceIt->second.guaranteeClient = true;
         return Status::fromExceptionCode(Status::EX_ILLEGAL_STATE);
     }
 
diff --git a/include/input/IInputFlinger.h b/include/input/IInputFlinger.h
index 4365a3c..d23e3b7 100644
--- a/include/input/IInputFlinger.h
+++ b/include/input/IInputFlinger.h
@@ -37,7 +37,6 @@
 
     virtual void setInputWindows(const std::vector<InputWindowInfo>& inputHandles,
             const sp<ISetInputWindowsListener>& setInputWindowsListener) = 0;
-    virtual void transferTouchFocus(const sp<IBinder>& fromToken, const sp<IBinder>& toToken) = 0;
     virtual void registerInputChannel(const sp<InputChannel>& channel) = 0;
     virtual void unregisterInputChannel(const sp<InputChannel>& channel) = 0;
 };
@@ -51,8 +50,7 @@
     enum {
         SET_INPUT_WINDOWS_TRANSACTION = IBinder::FIRST_CALL_TRANSACTION,
         REGISTER_INPUT_CHANNEL_TRANSACTION,
-        UNREGISTER_INPUT_CHANNEL_TRANSACTION,
-        TRANSFER_TOUCH_FOCUS
+        UNREGISTER_INPUT_CHANNEL_TRANSACTION
     };
 
     virtual status_t onTransact(uint32_t code, const Parcel& data,
diff --git a/libs/binder/Android.bp b/libs/binder/Android.bp
index bc541f4..6023f92 100644
--- a/libs/binder/Android.bp
+++ b/libs/binder/Android.bp
@@ -73,9 +73,9 @@
     // or dessert updates. Instead, apex users should use libbinder_ndk.
     apex_available: [
         "//apex_available:platform",
-        // TODO(b/139016109) remove these three
+        // TODO(b/139016109) remove these
+        "com.android.media",
         "com.android.media.swcodec",
-        "test_com.android.media.swcodec",
     ],
 
     srcs: [
diff --git a/libs/binder/Binder.cpp b/libs/binder/Binder.cpp
index 2f6e9c3..e0fb543 100644
--- a/libs/binder/Binder.cpp
+++ b/libs/binder/Binder.cpp
@@ -141,7 +141,7 @@
 
 // ---------------------------------------------------------------------------
 
-BBinder::BBinder() : mExtras(nullptr)
+BBinder::BBinder() : mExtras(nullptr), mStability(0)
 {
 }
 
diff --git a/libs/binder/BpBinder.cpp b/libs/binder/BpBinder.cpp
index f16c39c..d2b9b8f 100644
--- a/libs/binder/BpBinder.cpp
+++ b/libs/binder/BpBinder.cpp
@@ -138,6 +138,7 @@
 
 BpBinder::BpBinder(int32_t handle, int32_t trackedUid)
     : mHandle(handle)
+    , mStability(0)
     , mAlive(1)
     , mObitsSent(0)
     , mObituaries(nullptr)
diff --git a/libs/binder/LazyServiceRegistrar.cpp b/libs/binder/LazyServiceRegistrar.cpp
index 71d8130..74aece8 100644
--- a/libs/binder/LazyServiceRegistrar.cpp
+++ b/libs/binder/LazyServiceRegistrar.cpp
@@ -31,11 +31,16 @@
 
 class ClientCounterCallback : public ::android::os::BnClientCallback {
 public:
-    ClientCounterCallback() : mNumConnectedServices(0) {}
+    ClientCounterCallback() : mNumConnectedServices(0), mForcePersist(false) {}
 
     bool registerService(const sp<IBinder>& service, const std::string& name,
                          bool allowIsolated, int dumpFlags);
 
+    /**
+     * Set a flag to prevent services from automatically shutting down
+     */
+    void forcePersist(bool persist);
+
 protected:
     Status onClients(const sp<IBinder>& service, bool clients) override;
 
@@ -60,6 +65,8 @@
      * Map of registered names and services
      */
     std::map<std::string, Service> mRegisteredServices;
+
+    bool mForcePersist;
 };
 
 bool ClientCounterCallback::registerService(const sp<IBinder>& service, const std::string& name,
@@ -88,6 +95,14 @@
     return true;
 }
 
+void ClientCounterCallback::forcePersist(bool persist) {
+    mForcePersist = persist;
+    if(!mForcePersist) {
+        // Attempt a shutdown in case the number of clients hit 0 while the flag was on
+        tryShutdown();
+    }
+}
+
 /**
  * onClients is oneway, so no need to worry about multi-threading. Note that this means multiple
  * invocations could occur on different threads however.
@@ -103,14 +118,21 @@
           mNumConnectedServices, mRegisteredServices.size(),
           String8(service->getInterfaceDescriptor()).string(), clients);
 
-    if (mNumConnectedServices == 0) {
-        tryShutdown();
-    }
-
+    tryShutdown();
     return Status::ok();
 }
 
 void ClientCounterCallback::tryShutdown() {
+    if(mNumConnectedServices > 0) {
+        // Should only shut down if there are no clients
+        return;
+    }
+
+    if(mForcePersist) {
+        ALOGI("Shutdown prevented by forcePersist override flag.");
+        return;
+    }
+
     ALOGI("Trying to shut down the service. No clients in use for any service in process.");
 
     auto manager = interface_cast<AidlServiceManager>(asBinder(defaultServiceManager()));
@@ -165,5 +187,9 @@
     return OK;
 }
 
+void LazyServiceRegistrar::forcePersist(bool persist) {
+    mClientCC->forcePersist(persist);
+}
+
 }  // namespace hardware
 }  // namespace android
\ No newline at end of file
diff --git a/libs/binder/ProcessState.cpp b/libs/binder/ProcessState.cpp
index 631e8c5..0f81e0b 100644
--- a/libs/binder/ProcessState.cpp
+++ b/libs/binder/ProcessState.cpp
@@ -328,6 +328,8 @@
 }
 
 status_t ProcessState::setThreadPoolMaxThreadCount(size_t maxThreads) {
+    LOG_ALWAYS_FATAL_IF(mThreadPoolStarted && maxThreads < mMaxThreads,
+           "Binder threadpool cannot be shrunk after starting");
     status_t result = NO_ERROR;
     if (ioctl(mDriverFD, BINDER_SET_MAX_THREADS, &maxThreads) != -1) {
         mMaxThreads = maxThreads;
diff --git a/libs/binder/Stability.cpp b/libs/binder/Stability.cpp
index 7ce5e36..e1565fa 100644
--- a/libs/binder/Stability.cpp
+++ b/libs/binder/Stability.cpp
@@ -15,6 +15,9 @@
  */
 #include <binder/Stability.h>
 
+#include <binder/BpBinder.h>
+#include <binder/Binder.h>
+
 namespace android {
 namespace internal {
 
@@ -78,11 +81,12 @@
 
     if (currentStability == stability) return OK;
 
-    binder->attachObject(
-        reinterpret_cast<void*>(&Stability::get),
-        reinterpret_cast<void*>(stability),
-        nullptr /*cleanupCookie*/,
-        nullptr /*cleanup function*/);
+    BBinder* local = binder->localBinder();
+    if (local != nullptr) {
+        local->mStability = static_cast<int32_t>(stability);
+    } else {
+        binder->remoteBinder()->mStability = static_cast<int32_t>(stability);
+    }
 
     return OK;
 }
@@ -90,8 +94,12 @@
 Stability::Level Stability::get(IBinder* binder) {
     if (binder == nullptr) return UNDECLARED;
 
-    return static_cast<Level>(reinterpret_cast<intptr_t>(
-        binder->findObject(reinterpret_cast<void*>(&Stability::get))));
+    BBinder* local = binder->localBinder();
+    if (local != nullptr) {
+        return static_cast<Stability::Level>(local->mStability);
+    }
+
+    return static_cast<Stability::Level>(binder->remoteBinder()->mStability);
 }
 
 bool Stability::check(int32_t provided, Level required) {
diff --git a/libs/binder/include/binder/Binder.h b/libs/binder/include/binder/Binder.h
index 3be61f9..74e52db 100644
--- a/libs/binder/include/binder/Binder.h
+++ b/libs/binder/include/binder/Binder.h
@@ -24,6 +24,10 @@
 // ---------------------------------------------------------------------------
 namespace android {
 
+namespace internal {
+class Stability;
+}
+
 class BBinder : public IBinder
 {
 public:
@@ -88,7 +92,12 @@
     Extras*             getOrCreateExtras();
 
     std::atomic<Extras*> mExtras;
-            void*       mReserved0;
+
+    friend ::android::internal::Stability;
+    union {
+        int32_t mStability;
+        void* mReserved0;
+    };
 };
 
 // ---------------------------------------------------------------------------
diff --git a/libs/binder/include/binder/BpBinder.h b/libs/binder/include/binder/BpBinder.h
index 7dca733..378a911 100644
--- a/libs/binder/include/binder/BpBinder.h
+++ b/libs/binder/include/binder/BpBinder.h
@@ -27,6 +27,10 @@
 // ---------------------------------------------------------------------------
 namespace android {
 
+namespace internal {
+class Stability;
+};
+
 using binder_proxy_limit_callback = void(*)(int);
 
 class BpBinder : public IBinder
@@ -116,6 +120,9 @@
 private:
     const   int32_t             mHandle;
 
+    friend ::android::internal::Stability;
+            int32_t             mStability;
+
     struct Obituary {
         wp<DeathRecipient> recipient;
         void* cookie;
@@ -130,7 +137,6 @@
             volatile int32_t    mObitsSent;
             Vector<Obituary>*   mObituaries;
             ObjectManager       mObjects;
-            Parcel*             mConstantData;
     mutable String16            mDescriptorCache;
             int32_t             mTrackedUid;
 
diff --git a/libs/binder/include/binder/IBinder.h b/libs/binder/include/binder/IBinder.h
index 64604b7..eea0e89 100644
--- a/libs/binder/include/binder/IBinder.h
+++ b/libs/binder/include/binder/IBinder.h
@@ -173,6 +173,10 @@
      * The @a cookie is optional -- if non-NULL, it should be a
      * memory address that you own (that is, you know it is unique).
      *
+     * @note When all references to the binder being linked to are dropped, the
+     * recipient is automatically unlinked. So, you must hold onto a binder in
+     * order to receive death notifications about it.
+     *
      * @note You will only receive death notifications for remote binders,
      * as local binders by definition can't die without you dying as well.
      * Trying to use this function on a local binder will result in an
diff --git a/libs/binder/include/binder/IPCThreadState.h b/libs/binder/include/binder/IPCThreadState.h
index 4818889..b4e4a42 100644
--- a/libs/binder/include/binder/IPCThreadState.h
+++ b/libs/binder/include/binder/IPCThreadState.h
@@ -39,12 +39,28 @@
             
             status_t            clearLastError();
 
+            /**
+             * Returns the PID of the process which has made the current binder
+             * call. If not in a binder call, this will return getpid. If the
+             * call is oneway, this will return 0.
+             */
             pid_t               getCallingPid() const;
-            // nullptr if unavailable
-            //
-            // this can't be restored once it's cleared, and it does not return the
-            // context of the current process when not in a binder call.
+
+            /**
+             * Returns the SELinux security identifier of the process which has
+             * made the current binder call. If not in a binder call this will
+             * return nullptr. If this isn't requested with
+             * IBinder::setRequestingSid, it will also return nullptr.
+             *
+             * This can't be restored once it's cleared, and it does not return the
+             * context of the current process when not in a binder call.
+             */
             const char*         getCallingSid() const;
+
+            /**
+             * Returns the UID of the process which has made the current binder
+             * call. If not in a binder call, this will return 0.
+             */
             uid_t               getCallingUid() const;
 
             void                setStrictModePolicy(int32_t policy);
diff --git a/libs/binder/include/binder/LazyServiceRegistrar.h b/libs/binder/include/binder/LazyServiceRegistrar.h
index efdecc4..6d711bc 100644
--- a/libs/binder/include/binder/LazyServiceRegistrar.h
+++ b/libs/binder/include/binder/LazyServiceRegistrar.h
@@ -34,6 +34,12 @@
                               const std::string& name = "default",
                               bool allowIsolated = false,
                               int dumpFlags = IServiceManager::DUMP_FLAG_PRIORITY_DEFAULT);
+     /**
+      * Force the service to persist, even when it has 0 clients.
+      * If setting this flag from the server side, make sure to do so before calling registerService,
+      * or there may be a race with the default dynamic shutdown.
+      */
+     void forcePersist(bool persist);
 
    private:
      std::shared_ptr<internal::ClientCounterCallback> mClientCC;
diff --git a/libs/binder/ndk/ibinder.cpp b/libs/binder/ndk/ibinder.cpp
index 75dcdc8..649faa1 100644
--- a/libs/binder/ndk/ibinder.cpp
+++ b/libs/binder/ndk/ibinder.cpp
@@ -486,7 +486,6 @@
 
 void AIBinder_incStrong(AIBinder* binder) {
     if (binder == nullptr) {
-        LOG(ERROR) << __func__ << ": on null binder";
         return;
     }
 
diff --git a/libs/binder/ndk/include_ndk/android/binder_parcel_utils.h b/libs/binder/ndk/include_ndk/android/binder_parcel_utils.h
index df5df13..09949ea 100644
--- a/libs/binder/ndk/include_ndk/android/binder_parcel_utils.h
+++ b/libs/binder/ndk/include_ndk/android/binder_parcel_utils.h
@@ -831,34 +831,34 @@
 }
 
 /**
- * Writes a vector of int8_t to the next location in a non-null parcel.
+ * Writes a vector of uint8_t to the next location in a non-null parcel.
  */
-inline binder_status_t AParcel_writeVector(AParcel* parcel, const std::vector<int8_t>& vec) {
-    return AParcel_writeByteArray(parcel, vec.data(), vec.size());
+inline binder_status_t AParcel_writeVector(AParcel* parcel, const std::vector<uint8_t>& vec) {
+    return AParcel_writeByteArray(parcel, reinterpret_cast<const int8_t*>(vec.data()), vec.size());
 }
 
 /**
- * Writes an optional vector of int8_t to the next location in a non-null parcel.
+ * Writes an optional vector of uint8_t to the next location in a non-null parcel.
  */
 inline binder_status_t AParcel_writeVector(AParcel* parcel,
-                                           const std::optional<std::vector<int8_t>>& vec) {
+                                           const std::optional<std::vector<uint8_t>>& vec) {
     if (!vec) return AParcel_writeByteArray(parcel, nullptr, -1);
     return AParcel_writeVector(parcel, *vec);
 }
 
 /**
- * Reads a vector of int8_t from the next location in a non-null parcel.
+ * Reads a vector of uint8_t from the next location in a non-null parcel.
  */
-inline binder_status_t AParcel_readVector(const AParcel* parcel, std::vector<int8_t>* vec) {
+inline binder_status_t AParcel_readVector(const AParcel* parcel, std::vector<uint8_t>* vec) {
     void* vectorData = static_cast<void*>(vec);
     return AParcel_readByteArray(parcel, vectorData, AParcel_stdVectorAllocator<int8_t>);
 }
 
 /**
- * Reads an optional vector of int8_t from the next location in a non-null parcel.
+ * Reads an optional vector of uint8_t from the next location in a non-null parcel.
  */
 inline binder_status_t AParcel_readVector(const AParcel* parcel,
-                                          std::optional<std::vector<int8_t>>* vec) {
+                                          std::optional<std::vector<uint8_t>>* vec) {
     void* vectorData = static_cast<void*>(vec);
     return AParcel_readByteArray(parcel, vectorData, AParcel_nullableStdVectorAllocator<int8_t>);
 }
diff --git a/libs/binderthreadstate/Android.bp b/libs/binderthreadstate/Android.bp
index c186110..9e50729 100644
--- a/libs/binderthreadstate/Android.bp
+++ b/libs/binderthreadstate/Android.bp
@@ -20,6 +20,10 @@
     vendor_available: true,
     host_supported: true,
 
+    apex_available: [
+        "com.android.media",
+    ],
+
     shared_libs: [
         "libbinder",
         "libhidlbase",  // libhwbinder is in here
diff --git a/libs/dumputils/dump_utils.cpp b/libs/dumputils/dump_utils.cpp
index 0ede8b1..32baa5f 100644
--- a/libs/dumputils/dump_utils.cpp
+++ b/libs/dumputils/dump_utils.cpp
@@ -56,6 +56,9 @@
         "android.hardware.audio@4.0::IDevicesFactory",
         "android.hardware.audio@5.0::IDevicesFactory",
         "android.hardware.audio@6.0::IDevicesFactory",
+        "android.hardware.automotive.audiocontrol@1.0::IAudioControl",
+        "android.hardware.automotive.evs@1.0::IEvsCamera",
+        "android.hardware.automotive.vehicle@2.0::IVehicle",
         "android.hardware.biometrics.face@1.0::IBiometricsFace",
         "android.hardware.bluetooth@1.0::IBluetoothHci",
         "android.hardware.camera.provider@2.4::ICameraProvider",
@@ -66,6 +69,7 @@
         "android.hardware.media.c2@1.0::IComponentStore",
         "android.hardware.media.omx@1.0::IOmx",
         "android.hardware.media.omx@1.0::IOmxStore",
+        "android.hardware.neuralnetworks@1.0::IDevice",
         "android.hardware.power@1.3::IPower",
         "android.hardware.power.stats@1.0::IPowerStats",
         "android.hardware.sensors@1.0::ISensors",
diff --git a/libs/gralloc/OWNERS b/libs/gralloc/OWNERS
index 67743cd..4a95778 100644
--- a/libs/gralloc/OWNERS
+++ b/libs/gralloc/OWNERS
@@ -1,2 +1,2 @@
-marissaw@google.com
+chrisforbes@google.com
 vhau@google.com
diff --git a/libs/gui/BufferQueueConsumer.cpp b/libs/gui/BufferQueueConsumer.cpp
index 528bfb1..3a7cb44 100644
--- a/libs/gui/BufferQueueConsumer.cpp
+++ b/libs/gui/BufferQueueConsumer.cpp
@@ -166,7 +166,9 @@
                         mCore->mFreeBuffers.push_back(front->mSlot);
                     }
 
-                    listener = mCore->mConnectedProducerListener;
+                    if (mCore->mBufferReleasedCbEnabled) {
+                        listener = mCore->mConnectedProducerListener;
+                    }
                     ++numDroppedBuffers;
                 }
 
@@ -457,7 +459,9 @@
             mCore->mFreeBuffers.push_back(slot);
         }
 
-        listener = mCore->mConnectedProducerListener;
+        if (mCore->mBufferReleasedCbEnabled) {
+            listener = mCore->mConnectedProducerListener;
+        }
         BQ_LOGV("releaseBuffer: releasing slot %d", slot);
 
         mCore->mDequeueCondition.notify_all();
@@ -668,7 +672,7 @@
         BQ_LOGV("setMaxAcquiredBufferCount: %d", maxAcquiredBuffers);
         mCore->mMaxAcquiredBufferCount = maxAcquiredBuffers;
         VALIDATE_CONSISTENCY();
-        if (delta < 0) {
+        if (delta < 0 && mCore->mBufferReleasedCbEnabled) {
             listener = mCore->mConsumerListener;
         }
     }
diff --git a/libs/gui/BufferQueueCore.cpp b/libs/gui/BufferQueueCore.cpp
index e0e3431..0264bd2 100644
--- a/libs/gui/BufferQueueCore.cpp
+++ b/libs/gui/BufferQueueCore.cpp
@@ -65,6 +65,7 @@
     mConnectedApi(NO_CONNECTED_API),
     mLinkedToDeath(),
     mConnectedProducerListener(),
+    mBufferReleasedCbEnabled(false),
     mSlots(),
     mQueue(),
     mFreeSlots(),
@@ -260,6 +261,12 @@
 }
 
 void BufferQueueCore::discardFreeBuffersLocked() {
+    // Notify producer about the discarded buffers.
+    if (mConnectedProducerListener != nullptr && mFreeBuffers.size() > 0) {
+        std::vector<int32_t> freeBuffers(mFreeBuffers.begin(), mFreeBuffers.end());
+        mConnectedProducerListener->onBuffersDiscarded(freeBuffers);
+    }
+
     for (int s : mFreeBuffers) {
         mFreeSlots.insert(s);
         clearBufferSlotLocked(s);
diff --git a/libs/gui/BufferQueueProducer.cpp b/libs/gui/BufferQueueProducer.cpp
index 3efb1b6..4f8eb6b 100644
--- a/libs/gui/BufferQueueProducer.cpp
+++ b/libs/gui/BufferQueueProducer.cpp
@@ -1221,9 +1221,8 @@
                     }
                     mCore->mLinkedToDeath = listener;
                 }
-                if (listener->needsReleaseNotify()) {
-                    mCore->mConnectedProducerListener = listener;
-                }
+                mCore->mConnectedProducerListener = listener;
+                mCore->mBufferReleasedCbEnabled = listener->needsReleaseNotify();
             }
             break;
         default:
diff --git a/libs/gui/IProducerListener.cpp b/libs/gui/IProducerListener.cpp
index 936063a..808e336 100644
--- a/libs/gui/IProducerListener.cpp
+++ b/libs/gui/IProducerListener.cpp
@@ -24,6 +24,7 @@
 enum {
     ON_BUFFER_RELEASED = IBinder::FIRST_CALL_TRANSACTION,
     NEEDS_RELEASE_NOTIFY,
+    ON_BUFFERS_DISCARDED,
 };
 
 class BpProducerListener : public BpInterface<IProducerListener>
@@ -56,6 +57,13 @@
         }
         return result;
     }
+
+    virtual void onBuffersDiscarded(const std::vector<int>& discardedSlots) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IProducerListener::getInterfaceDescriptor());
+        data.writeInt32Vector(discardedSlots);
+        remote()->transact(ON_BUFFERS_DISCARDED, data, &reply, IBinder::FLAG_ONEWAY);
+    }
 };
 
 // Out-of-line virtual method definition to trigger vtable emission in this
@@ -76,6 +84,10 @@
     virtual bool needsReleaseNotify() override {
         return mBase->needsReleaseNotify();
     }
+
+    virtual void onBuffersDiscarded(const std::vector<int32_t>& discardedSlots) override {
+        return mBase->onBuffersDiscarded(discardedSlots);
+    }
 };
 
 IMPLEMENT_HYBRID_META_INTERFACE(ProducerListener,
@@ -92,6 +104,17 @@
             CHECK_INTERFACE(IProducerListener, data, reply);
             reply->writeBool(needsReleaseNotify());
             return NO_ERROR;
+        case ON_BUFFERS_DISCARDED: {
+            CHECK_INTERFACE(IProducerListener, data, reply);
+            std::vector<int32_t> discardedSlots;
+            status_t result = data.readInt32Vector(&discardedSlots);
+            if (result != NO_ERROR) {
+                ALOGE("ON_BUFFERS_DISCARDED failed to read discardedSlots: %d", result);
+                return result;
+            }
+            onBuffersDiscarded(discardedSlots);
+            return NO_ERROR;
+        }
     }
     return BBinder::onTransact(code, data, reply, flags);
 }
@@ -104,4 +127,7 @@
     return true;
 }
 
+void BnProducerListener::onBuffersDiscarded(const std::vector<int32_t>& /*discardedSlots*/) {
+}
+
 } // namespace android
diff --git a/libs/gui/OWNERS b/libs/gui/OWNERS
index c13401d..b77dfda 100644
--- a/libs/gui/OWNERS
+++ b/libs/gui/OWNERS
@@ -1,10 +1,9 @@
 adyabr@google.com
 akrulec@google.com
 alecmouri@google.com
+chrisforbes@google.com
 jessehall@google.com
-jwcai@google.com
 lpy@google.com
-marissaw@google.com
 mathias@google.com
 racarr@google.com
 steventhomas@google.com
diff --git a/libs/gui/Surface.cpp b/libs/gui/Surface.cpp
index 9fe5de8..b822319 100644
--- a/libs/gui/Surface.cpp
+++ b/libs/gui/Surface.cpp
@@ -35,6 +35,7 @@
 
 #include <ui/DisplayStatInfo.h>
 #include <ui/Fence.h>
+#include <ui/GraphicBuffer.h>
 #include <ui/HdrCapabilities.h>
 #include <ui/Region.h>
 
@@ -1287,6 +1288,14 @@
 }
 
 int Surface::connect(
+        int api, bool reportBufferRemoval, const sp<SurfaceListener>& sListener) {
+    if (sListener != nullptr) {
+        mListenerProxy = new ProducerListenerProxy(this, sListener);
+    }
+    return connect(api, mListenerProxy, reportBufferRemoval);
+}
+
+int Surface::connect(
         int api, const sp<IProducerListener>& listener, bool reportBufferRemoval) {
     ATRACE_CALL();
     ALOGV("Surface::connect");
@@ -1684,6 +1693,28 @@
     }
 }
 
+status_t Surface::getAndFlushBuffersFromSlots(const std::vector<int32_t>& slots,
+        std::vector<sp<GraphicBuffer>>* outBuffers) {
+    ALOGV("Surface::getAndFlushBuffersFromSlots");
+    for (int32_t i : slots) {
+        if (i < 0 || i >= NUM_BUFFER_SLOTS) {
+            ALOGE("%s: Invalid slotIndex: %d", __FUNCTION__, i);
+            return BAD_VALUE;
+        }
+    }
+
+    Mutex::Autolock lock(mMutex);
+    for (int32_t i : slots) {
+        if (mSlots[i].buffer == nullptr) {
+            ALOGW("%s: Discarded slot %d doesn't contain buffer!", __FUNCTION__, i);
+            continue;
+        }
+        outBuffers->push_back(mSlots[i].buffer);
+        mSlots[i].buffer = nullptr;
+    }
+    return OK;
+}
+
 void Surface::setSurfaceDamage(android_native_rect_t* rects, size_t numRects) {
     ATRACE_CALL();
     ALOGV("Surface::setSurfaceDamage");
@@ -1951,4 +1982,22 @@
     return err;
 }
 
+void Surface::ProducerListenerProxy::onBuffersDiscarded(const std::vector<int32_t>& slots) {
+    ATRACE_CALL();
+    sp<Surface> parent = mParent.promote();
+    if (parent == nullptr) {
+        return;
+    }
+
+    std::vector<sp<GraphicBuffer>> discardedBufs;
+    status_t res = parent->getAndFlushBuffersFromSlots(slots, &discardedBufs);
+    if (res != OK) {
+        ALOGE("%s: Failed to get buffers from slots: %s(%d)", __FUNCTION__,
+                strerror(-res), res);
+        return;
+    }
+
+    mSurfaceListener->onBuffersDiscarded(discardedBufs);
+}
+
 }; // namespace android
diff --git a/libs/gui/include/gui/BufferQueueCore.h b/libs/gui/include/gui/BufferQueueCore.h
index 690a85f..17617bc 100644
--- a/libs/gui/include/gui/BufferQueueCore.h
+++ b/libs/gui/include/gui/BufferQueueCore.h
@@ -189,8 +189,12 @@
     sp<IProducerListener> mLinkedToDeath;
 
     // mConnectedProducerListener is used to handle the onBufferReleased
-    // notification.
+    // and onBuffersDiscarded notification.
     sp<IProducerListener> mConnectedProducerListener;
+    // mBufferReleasedCbEnabled is used to indicate whether onBufferReleased()
+    // callback is registered by the listener. When set to false,
+    // mConnectedProducerListener will not trigger onBufferReleased() callback.
+    bool mBufferReleasedCbEnabled;
 
     // mSlots is an array of buffer slots that must be mirrored on the producer
     // side. This allows buffer ownership to be transferred between the producer
diff --git a/libs/gui/include/gui/IProducerListener.h b/libs/gui/include/gui/IProducerListener.h
index a13d8e4..32a3690 100644
--- a/libs/gui/include/gui/IProducerListener.h
+++ b/libs/gui/include/gui/IProducerListener.h
@@ -17,6 +17,8 @@
 #ifndef ANDROID_GUI_IPRODUCERLISTENER_H
 #define ANDROID_GUI_IPRODUCERLISTENER_H
 
+#include <vector>
+
 #include <android/hardware/graphics/bufferqueue/1.0/IProducerListener.h>
 #include <android/hardware/graphics/bufferqueue/2.0/IProducerListener.h>
 #include <binder/IInterface.h>
@@ -44,6 +46,9 @@
     // multiple threads.
     virtual void onBufferReleased() = 0; // Asynchronous
     virtual bool needsReleaseNotify() = 0;
+    // onBuffersFreed is called from IGraphicBufferConsumer::discardFreeBuffers
+    // to notify the producer that certain free buffers are discarded by the consumer.
+    virtual void onBuffersDiscarded(const std::vector<int32_t>& slots) = 0; // Asynchronous
 };
 
 class IProducerListener : public ProducerListener, public IInterface
@@ -65,6 +70,7 @@
     virtual status_t onTransact(uint32_t code, const Parcel& data,
             Parcel* reply, uint32_t flags = 0);
     virtual bool needsReleaseNotify();
+    virtual void onBuffersDiscarded(const std::vector<int32_t>& slots);
 };
 
 class DummyProducerListener : public BnProducerListener
diff --git a/libs/gui/include/gui/Surface.h b/libs/gui/include/gui/Surface.h
index 5c6a1ee..a5641b0 100644
--- a/libs/gui/include/gui/Surface.h
+++ b/libs/gui/include/gui/Surface.h
@@ -20,6 +20,7 @@
 #include <gui/BufferQueueDefs.h>
 #include <gui/HdrMetadata.h>
 #include <gui/IGraphicBufferProducer.h>
+#include <gui/IProducerListener.h>
 
 #include <ui/ANativeObjectBase.h>
 #include <ui/GraphicTypes.h>
@@ -35,6 +36,21 @@
 
 class ISurfaceComposer;
 
+/* This is the same as ProducerListener except that onBuffersDiscarded is
+ * called with a vector of graphic buffers instead of buffer slots.
+ */
+class SurfaceListener : public virtual RefBase
+{
+public:
+    SurfaceListener() = default;
+    virtual ~SurfaceListener() = default;
+
+    virtual void onBufferReleased() = 0;
+    virtual bool needsReleaseNotify() = 0;
+
+    virtual void onBuffersDiscarded(const std::vector<sp<GraphicBuffer>>& buffers) = 0;
+};
+
 /*
  * An implementation of ANativeWindow that feeds graphics buffers into a
  * BufferQueue.
@@ -283,6 +299,10 @@
             sp<Fence>* outFence);
     virtual int attachBuffer(ANativeWindowBuffer*);
 
+    virtual int connect(
+            int api, bool reportBufferRemoval,
+            const sp<SurfaceListener>& sListener);
+
     // When client connects to Surface with reportBufferRemoval set to true, any buffers removed
     // from this Surface will be collected and returned here. Once this method returns, these
     // buffers will no longer be referenced by this Surface unless they are attached to this
@@ -299,6 +319,26 @@
     enum { NUM_BUFFER_SLOTS = BufferQueueDefs::NUM_BUFFER_SLOTS };
     enum { DEFAULT_FORMAT = PIXEL_FORMAT_RGBA_8888 };
 
+    class ProducerListenerProxy : public BnProducerListener {
+    public:
+        ProducerListenerProxy(wp<Surface> parent, sp<SurfaceListener> listener)
+               : mParent(parent), mSurfaceListener(listener) {}
+        virtual ~ProducerListenerProxy() {}
+
+        virtual void onBufferReleased() {
+            mSurfaceListener->onBufferReleased();
+        }
+
+        virtual bool needsReleaseNotify() {
+            return mSurfaceListener->needsReleaseNotify();
+        }
+
+        virtual void onBuffersDiscarded(const std::vector<int32_t>& slots);
+    private:
+        wp<Surface> mParent;
+        sp<SurfaceListener> mSurfaceListener;
+    };
+
     void querySupportedTimestampsLocked() const;
 
     void freeAllBuffers();
@@ -466,6 +506,10 @@
 
     bool mReportRemovedBuffers = false;
     std::vector<sp<GraphicBuffer>> mRemovedBuffers;
+
+    sp<IProducerListener> mListenerProxy;
+    status_t getAndFlushBuffersFromSlots(const std::vector<int32_t>& slots,
+            std::vector<sp<GraphicBuffer>>* outBuffers);
 };
 
 } // namespace android
diff --git a/libs/gui/sysprop/Android.bp b/libs/gui/sysprop/Android.bp
index e7f7c1f..e090c49 100644
--- a/libs/gui/sysprop/Android.bp
+++ b/libs/gui/sysprop/Android.bp
@@ -1,5 +1,9 @@
 sysprop_library {
     name: "LibGuiProperties",
+    apex_available: [
+        "com.android.media",
+        "com.android.media.swcodec",
+    ],
     srcs: ["*.sysprop"],
     api_packages: ["android.sysprop"],
     property_owner: "Platform",
diff --git a/libs/gui/tests/BufferQueue_test.cpp b/libs/gui/tests/BufferQueue_test.cpp
index 119e888..406f21f 100644
--- a/libs/gui/tests/BufferQueue_test.cpp
+++ b/libs/gui/tests/BufferQueue_test.cpp
@@ -998,12 +998,31 @@
     ASSERT_EQ(true, thirdSegment.usedThirdBuffer);
 }
 
+struct BufferDiscardedListener : public BnProducerListener {
+public:
+    BufferDiscardedListener() = default;
+    virtual ~BufferDiscardedListener() = default;
+
+    virtual void onBufferReleased() {}
+    virtual bool needsReleaseNotify() { return false; }
+    virtual void onBuffersDiscarded(const std::vector<int32_t>& slots) {
+        mDiscardedSlots.insert(mDiscardedSlots.end(), slots.begin(), slots.end());
+    }
+
+    const std::vector<int32_t>& getDiscardedSlots() const { return mDiscardedSlots; }
+private:
+    // No need to use lock given the test triggers the listener in the same
+    // thread context.
+    std::vector<int32_t> mDiscardedSlots;
+};
+
 TEST_F(BufferQueueTest, TestDiscardFreeBuffers) {
     createBufferQueue();
     sp<DummyConsumer> dc(new DummyConsumer);
     ASSERT_EQ(OK, mConsumer->consumerConnect(dc, false));
     IGraphicBufferProducer::QueueBufferOutput output;
-    ASSERT_EQ(OK, mProducer->connect(new DummyProducerListener,
+    sp<BufferDiscardedListener> pl(new BufferDiscardedListener);
+    ASSERT_EQ(OK, mProducer->connect(pl,
             NATIVE_WINDOW_API_CPU, false, &output));
 
     int slot = BufferQueue::INVALID_BUFFER_SLOT;
@@ -1044,12 +1063,19 @@
     ASSERT_EQ(OK, mConsumer->acquireBuffer(&item, 0));
     ASSERT_EQ(OK, mConsumer->releaseBuffer(item.mSlot, item.mFrameNumber,
                     EGL_NO_DISPLAY, EGL_NO_SYNC_KHR, Fence::NO_FENCE));
+    int releasedSlot = item.mSlot;
+
     // Acquire 1 buffer, leaving 1 filled buffer in queue
     ASSERT_EQ(OK, mConsumer->acquireBuffer(&item, 0));
 
     // Now discard the free buffers
     ASSERT_EQ(OK, mConsumer->discardFreeBuffers());
 
+    // Check onBuffersDiscarded is called with correct slots
+    auto buffersDiscarded = pl->getDiscardedSlots();
+    ASSERT_EQ(buffersDiscarded.size(), 1);
+    ASSERT_EQ(buffersDiscarded[0], releasedSlot);
+
     // Check no free buffers in dump
     String8 dumpString;
     mConsumer->dumpState(String8{}, &dumpString);
diff --git a/libs/gui/tests/EndToEndNativeInputTest.cpp b/libs/gui/tests/EndToEndNativeInputTest.cpp
index 386f731..03b9cd7 100644
--- a/libs/gui/tests/EndToEndNativeInputTest.cpp
+++ b/libs/gui/tests/EndToEndNativeInputTest.cpp
@@ -133,27 +133,6 @@
         EXPECT_EQ(AMOTION_EVENT_ACTION_UP, mev->getAction());
     }
 
-    void expectMotionEvent(int motionEventType, int x, int y) {
-        InputEvent *ev = consumeEvent();
-        ASSERT_NE(ev, nullptr);
-        ASSERT_EQ(ev->getType(), AINPUT_EVENT_TYPE_MOTION);
-        MotionEvent *mev = static_cast<MotionEvent *>(ev);
-        EXPECT_EQ(motionEventType, mev->getAction());
-        EXPECT_EQ(x, mev->getX(0));
-        EXPECT_EQ(y, mev->getY(0));
-    }
-
-    void expectNoMotionEvent(int motionEventType) {
-        InputEvent *ev = consumeEvent();
-        if (ev == nullptr || ev->getType() != AINPUT_EVENT_TYPE_MOTION) {
-            // Didn't find an event or a motion event so assume action didn't occur.
-            return;
-        }
-
-        MotionEvent *mev = static_cast<MotionEvent *>(ev);
-        EXPECT_NE(motionEventType, mev->getAction());
-    }
-
     ~InputSurface() {
         mInputFlinger->unregisterInputChannel(mServerChannel);
     }
@@ -278,15 +257,6 @@
     }
 }
 
-void injectMotionEvent(std::string event, int x, int y) {
-    char *buf1, *buf2;
-    asprintf(&buf1, "%d", x);
-    asprintf(&buf2, "%d", y);
-    if (fork() == 0) {
-        execlp("input", "input", "motionevent", event.c_str(), buf1, buf2, NULL);
-    }
-}
-
 TEST_F(InputSurfacesTest, can_receive_input) {
     std::unique_ptr<InputSurface> surface = makeSurface(100, 100);
     surface->showAt(100, 100);
@@ -435,9 +405,11 @@
     surface->expectTap(1, 1);
 }
 
-// Ensure we send the input to the right surface when the surface visibility changes due to the
-// first buffer being submitted. ref: b/120839715
-TEST_F(InputSurfacesTest, input_respects_buffer_layer_buffer) {
+// TODO(b/139494112) update tests once we define expected behavior
+// Ensure we still send input to the surface regardless of surface visibility changes due to the
+// first buffer being submitted or alpha changes.
+// Original bug ref: b/120839715
+TEST_F(InputSurfacesTest, input_ignores_buffer_layer_buffer) {
     std::unique_ptr<InputSurface> bgSurface = makeSurface(100, 100);
     std::unique_ptr<InputSurface> bufferSurface =
             InputSurface::makeBufferInputSurface(mComposerClient, 100, 100);
@@ -446,14 +418,14 @@
     bufferSurface->showAt(10, 10);
 
     injectTap(11, 11);
-    bgSurface->expectTap(1, 1);
+    bufferSurface->expectTap(1, 1);
 
     postBuffer(bufferSurface->mSurfaceControl);
     injectTap(11, 11);
     bufferSurface->expectTap(1, 1);
 }
 
-TEST_F(InputSurfacesTest, input_respects_buffer_layer_alpha) {
+TEST_F(InputSurfacesTest, input_ignores_buffer_layer_alpha) {
     std::unique_ptr<InputSurface> bgSurface = makeSurface(100, 100);
     std::unique_ptr<InputSurface> bufferSurface =
             InputSurface::makeBufferInputSurface(mComposerClient, 100, 100);
@@ -468,10 +440,10 @@
     bufferSurface->doTransaction([](auto &t, auto &sc) { t.setAlpha(sc, 0.0); });
 
     injectTap(11, 11);
-    bgSurface->expectTap(1, 1);
+    bufferSurface->expectTap(1, 1);
 }
 
-TEST_F(InputSurfacesTest, input_respects_color_layer_alpha) {
+TEST_F(InputSurfacesTest, input_ignores_color_layer_alpha) {
     std::unique_ptr<InputSurface> bgSurface = makeSurface(100, 100);
     std::unique_ptr<InputSurface> fgSurface = makeSurface(100, 100);
 
@@ -484,7 +456,7 @@
     fgSurface->doTransaction([](auto &t, auto &sc) { t.setAlpha(sc, 0.0); });
 
     injectTap(11, 11);
-    bgSurface->expectTap(1, 1);
+    fgSurface->expectTap(1, 1);
 }
 
 TEST_F(InputSurfacesTest, input_respects_container_layer_visiblity) {
@@ -504,26 +476,6 @@
     bgSurface->expectTap(1, 1);
 }
 
-TEST_F(InputSurfacesTest, transfer_touch_focus) {
-    std::unique_ptr<InputSurface> fromSurface = makeSurface(100, 100);
-
-    fromSurface->showAt(10, 10);
-    injectMotionEvent("DOWN", 11, 11);
-    fromSurface->expectMotionEvent(AMOTION_EVENT_ACTION_DOWN, 1, 1);
-
-    std::unique_ptr<InputSurface> toSurface = makeSurface(100, 100);
-    toSurface->showAt(10, 10);
-
-    sp<IBinder> fromToken = fromSurface->mServerChannel->getToken();
-    sp<IBinder> toToken = toSurface->mServerChannel->getToken();
-    SurfaceComposerClient::Transaction t;
-    t.transferTouchFocus(fromToken, toToken).apply(true);
-
-    injectMotionEvent("UP", 11, 11);
-    toSurface->expectMotionEvent(AMOTION_EVENT_ACTION_UP, 1, 1);
-    fromSurface->expectNoMotionEvent(AMOTION_EVENT_ACTION_UP);
-}
-
 TEST_F(InputSurfacesTest, input_respects_outscreen) {
     std::unique_ptr<InputSurface> surface = makeSurface(100, 100);
     surface->showAt(-1, -1);
diff --git a/libs/gui/tests/Surface_test.cpp b/libs/gui/tests/Surface_test.cpp
index d370858..a851687 100644
--- a/libs/gui/tests/Surface_test.cpp
+++ b/libs/gui/tests/Surface_test.cpp
@@ -57,6 +57,37 @@
 
 static constexpr uint64_t NO_FRAME_INDEX = std::numeric_limits<uint64_t>::max();
 
+class DummySurfaceListener : public SurfaceListener {
+public:
+    DummySurfaceListener(bool enableReleasedCb = false) :
+            mEnableReleaseCb(enableReleasedCb),
+            mBuffersReleased(0) {}
+    virtual ~DummySurfaceListener() = default;
+
+    virtual void onBufferReleased() {
+        mBuffersReleased++;
+    }
+    virtual bool needsReleaseNotify() {
+        return mEnableReleaseCb;
+    }
+    virtual void onBuffersDiscarded(const std::vector<sp<GraphicBuffer>>& buffers) {
+        mDiscardedBuffers.insert(mDiscardedBuffers.end(), buffers.begin(), buffers.end());
+    }
+
+    int getReleaseNotifyCount() const {
+        return mBuffersReleased;
+    }
+    const std::vector<sp<GraphicBuffer>>& getDiscardedBuffers() const {
+        return mDiscardedBuffers;
+    }
+private:
+    // No need to use lock given the test triggers the listener in the same
+    // thread context.
+    bool mEnableReleaseCb;
+    int32_t mBuffersReleased;
+    std::vector<sp<GraphicBuffer>> mDiscardedBuffers;
+};
+
 class SurfaceTest : public ::testing::Test {
 protected:
     SurfaceTest() {
@@ -88,6 +119,86 @@
         mComposerClient->dispose();
     }
 
+    void testSurfaceListener(bool hasSurfaceListener, bool enableReleasedCb,
+            int32_t extraDiscardedBuffers) {
+        sp<IGraphicBufferProducer> producer;
+        sp<IGraphicBufferConsumer> consumer;
+        BufferQueue::createBufferQueue(&producer, &consumer);
+
+        sp<DummyConsumer> dummyConsumer(new DummyConsumer);
+        consumer->consumerConnect(dummyConsumer, false);
+        consumer->setConsumerName(String8("TestConsumer"));
+
+        sp<Surface> surface = new Surface(producer);
+        sp<ANativeWindow> window(surface);
+        sp<DummySurfaceListener> listener;
+        if (hasSurfaceListener) {
+            listener = new DummySurfaceListener(enableReleasedCb);
+        }
+        ASSERT_EQ(OK, surface->connect(
+                NATIVE_WINDOW_API_CPU,
+                /*reportBufferRemoval*/true,
+                /*listener*/listener));
+        const int BUFFER_COUNT = 4 + extraDiscardedBuffers;
+        ASSERT_EQ(NO_ERROR, native_window_set_buffer_count(window.get(), BUFFER_COUNT));
+
+        ANativeWindowBuffer* buffers[BUFFER_COUNT];
+        // Dequeue first to allocate a number of buffers
+        for (int i = 0; i < BUFFER_COUNT; i++) {
+            ASSERT_EQ(NO_ERROR, native_window_dequeue_buffer_and_wait(window.get(), &buffers[i]));
+        }
+        for (int i = 0; i < BUFFER_COUNT; i++) {
+            ASSERT_EQ(NO_ERROR, window->cancelBuffer(window.get(), buffers[i], -1));
+        }
+
+        ANativeWindowBuffer* buffer;
+        // Fill BUFFER_COUNT-1 buffers
+        for (int i = 0; i < BUFFER_COUNT-1; i++) {
+            ASSERT_EQ(NO_ERROR, native_window_dequeue_buffer_and_wait(window.get(), &buffer));
+            ASSERT_EQ(NO_ERROR, window->queueBuffer(window.get(), buffer, -1));
+        }
+
+        // Dequeue 1 buffer
+        ASSERT_EQ(NO_ERROR, native_window_dequeue_buffer_and_wait(window.get(), &buffer));
+
+        // Acquire and free 1+extraDiscardedBuffers buffer, check onBufferReleased is called.
+        std::vector<BufferItem> releasedItems;
+        releasedItems.resize(1+extraDiscardedBuffers);
+        for (int i = 0; i < releasedItems.size(); i++) {
+            ASSERT_EQ(NO_ERROR, consumer->acquireBuffer(&releasedItems[i], 0));
+            ASSERT_EQ(NO_ERROR, consumer->releaseBuffer(releasedItems[i].mSlot,
+                    releasedItems[i].mFrameNumber, EGL_NO_DISPLAY, EGL_NO_SYNC_KHR,
+                    Fence::NO_FENCE));
+        }
+        int32_t expectedReleaseCb = (enableReleasedCb ? releasedItems.size() : 0);
+        if (hasSurfaceListener) {
+            ASSERT_EQ(expectedReleaseCb, listener->getReleaseNotifyCount());
+        }
+
+        // Acquire 1 buffer, leaving 1+extraDiscardedBuffers filled buffer in queue
+        BufferItem item;
+        ASSERT_EQ(NO_ERROR, consumer->acquireBuffer(&item, 0));
+
+        // Discard free buffers
+        ASSERT_EQ(NO_ERROR, consumer->discardFreeBuffers());
+
+        if (hasSurfaceListener) {
+            ASSERT_EQ(expectedReleaseCb, listener->getReleaseNotifyCount());
+
+            // Check onBufferDiscarded is called with correct buffer
+            auto discardedBuffers = listener->getDiscardedBuffers();
+            ASSERT_EQ(discardedBuffers.size(), releasedItems.size());
+            for (int i = 0; i < releasedItems.size(); i++) {
+                ASSERT_EQ(discardedBuffers[i], releasedItems[i].mGraphicBuffer);
+            }
+
+            ASSERT_EQ(expectedReleaseCb, listener->getReleaseNotifyCount());
+        }
+
+        // Disconnect the surface
+        ASSERT_EQ(NO_ERROR, surface->disconnect(NATIVE_WINDOW_API_CPU));
+    }
+
     sp<Surface> mSurface;
     sp<SurfaceComposerClient> mComposerClient;
     sp<SurfaceControl> mSurfaceControl;
@@ -480,6 +591,21 @@
     ASSERT_LE(removedBuffers.size(), 1u);
 }
 
+TEST_F(SurfaceTest, SurfaceListenerTest) {
+    // Test discarding 1 free buffers with no listener
+    testSurfaceListener(/*hasListener*/false, /*enableReleaseCb*/false, /*extraDiscardedBuffers*/0);
+    // Test discarding 2 free buffers with no listener
+    testSurfaceListener(/*hasListener*/false, /*enableReleaseCb*/false, /*extraDiscardedBuffers*/1);
+    // Test discarding 1 free buffers with a listener, disabling onBufferReleased
+    testSurfaceListener(/*hasListener*/true, /*enableReleasedCb*/false, /*extraDiscardedBuffers*/0);
+    // Test discarding 2 free buffers with a listener, disabling onBufferReleased
+    testSurfaceListener(/*hasListener*/true, /*enableReleasedCb*/false, /*extraDiscardedBuffers*/1);
+    // Test discarding 1 free buffers with a listener, enabling onBufferReleased
+    testSurfaceListener(/*hasListener*/true, /*enableReleasedCb*/true, /*extraDiscardedBuffers*/0);
+    // Test discarding 3 free buffers with a listener, enabling onBufferReleased
+    testSurfaceListener(/*hasListener*/true, /*enableReleasedCb*/true, /*extraDiscardedBuffers*/2);
+}
+
 TEST_F(SurfaceTest, TestGetLastDequeueStartTime) {
     sp<ANativeWindow> anw(mSurface);
     ASSERT_EQ(NO_ERROR, native_window_api_connect(anw.get(), NATIVE_WINDOW_API_CPU));
diff --git a/libs/input/IInputFlinger.cpp b/libs/input/IInputFlinger.cpp
index d6a73bf..de3a23d 100644
--- a/libs/input/IInputFlinger.cpp
+++ b/libs/input/IInputFlinger.cpp
@@ -45,16 +45,6 @@
                 IBinder::FLAG_ONEWAY);
     }
 
-    virtual void transferTouchFocus(const sp<IBinder>& fromToken, const sp<IBinder>& toToken) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IInputFlinger::getInterfaceDescriptor());
-
-        data.writeStrongBinder(fromToken);
-        data.writeStrongBinder(toToken);
-        remote()->transact(BnInputFlinger::TRANSFER_TOUCH_FOCUS, data, &reply,
-                IBinder::FLAG_ONEWAY);
-    }
-
     virtual void registerInputChannel(const sp<InputChannel>& channel) {
         Parcel data, reply;
         data.writeInterfaceToken(IInputFlinger::getInterfaceDescriptor());
@@ -104,13 +94,6 @@
         unregisterInputChannel(channel);
         break;
     }
-    case TRANSFER_TOUCH_FOCUS: {
-        CHECK_INTERFACE(IInputFlinger, data, reply);
-        sp<IBinder> fromToken = data.readStrongBinder();
-        sp<IBinder> toToken = data.readStrongBinder();
-        transferTouchFocus(fromToken, toToken);
-        break;
-    }
     default:
         return BBinder::onTransact(code, data, reply, flags);
     }
diff --git a/libs/ui/GraphicBufferAllocator.cpp b/libs/ui/GraphicBufferAllocator.cpp
index 5f1c71e..b54ce0f 100644
--- a/libs/ui/GraphicBufferAllocator.cpp
+++ b/libs/ui/GraphicBufferAllocator.cpp
@@ -132,6 +132,17 @@
 
     status_t error =
             mAllocator->allocate(width, height, format, layerCount, usage, 1, stride, handle);
+    size_t bufSize;
+
+    // if stride has no meaning or is too large,
+    // approximate size with the input width instead
+    if ((*stride) != 0 &&
+        std::numeric_limits<size_t>::max() / height / (*stride) < static_cast<size_t>(bpp)) {
+        bufSize = static_cast<size_t>(width) * height * bpp;
+    } else {
+        bufSize = static_cast<size_t>((*stride)) * height * bpp;
+    }
+
     if (error == NO_ERROR) {
         Mutex::Autolock _l(sLock);
         KeyedVector<buffer_handle_t, alloc_rec_t>& list(sAllocList);
@@ -142,7 +153,7 @@
         rec.format = format;
         rec.layerCount = layerCount;
         rec.usage = usage;
-        rec.size = static_cast<size_t>(height * (*stride) * bpp);
+        rec.size = bufSize;
         rec.requestorName = std::move(requestorName);
         list.add(*handle, rec);
 
diff --git a/libs/ui/OWNERS b/libs/ui/OWNERS
index 97ead21..203a739 100644
--- a/libs/ui/OWNERS
+++ b/libs/ui/OWNERS
@@ -1,7 +1,6 @@
+chrisforbes@google.com
 lpy@google.com
-marissaw@google.com
 mathias@google.com
 romainguy@google.com
 stoza@google.com
-jwcai@google.com
-tianyuj@google.com
+vhau@google.com
diff --git a/libs/ui/include/ui/GraphicBufferAllocator.h b/libs/ui/include/ui/GraphicBufferAllocator.h
index faec978..0635727 100644
--- a/libs/ui/include/ui/GraphicBufferAllocator.h
+++ b/libs/ui/include/ui/GraphicBufferAllocator.h
@@ -54,7 +54,7 @@
     void dump(std::string& res) const;
     static void dumpToSystemLog();
 
-private:
+protected:
     struct alloc_rec_t {
         uint32_t width;
         uint32_t height;
diff --git a/libs/ui/tests/Android.bp b/libs/ui/tests/Android.bp
index 99434b7..0a07a48 100644
--- a/libs/ui/tests/Android.bp
+++ b/libs/ui/tests/Android.bp
@@ -29,6 +29,26 @@
 }
 
 cc_test {
+    name: "GraphicBufferAllocator_test",
+    header_libs: [
+        "libdvr_headers",
+        "libnativewindow_headers",
+    ],
+    static_libs: [
+        "libgmock",
+    ],
+    shared_libs: [
+        "liblog",
+	"libui",
+    ],
+    srcs: [
+        "GraphicBufferAllocator_test.cpp",
+        "mock/MockGrallocAllocator.cpp",
+    ],
+    cflags: ["-Wall", "-Werror"],
+}
+
+cc_test {
     name: "GraphicBuffer_test",
     header_libs: [
         "libdvr_headers",
diff --git a/libs/ui/tests/GraphicBufferAllocator_test.cpp b/libs/ui/tests/GraphicBufferAllocator_test.cpp
new file mode 100644
index 0000000..efca083
--- /dev/null
+++ b/libs/ui/tests/GraphicBufferAllocator_test.cpp
@@ -0,0 +1,116 @@
+/*
+ * Copyright 2019 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.
+ */
+
+#define LOG_TAG "GraphicBufferAllocatorTest"
+
+#include <ui/GraphicBuffer.h>
+#include <ui/GraphicBufferAllocator.h>
+#include <ui/PixelFormat.h>
+
+#include <gtest/gtest.h>
+
+#include "mock/MockGrallocAllocator.h"
+
+#include <algorithm>
+#include <limits>
+
+namespace android {
+
+namespace {
+
+constexpr uint32_t kTestWidth = 1024;
+constexpr uint32_t kTestHeight = 1;
+constexpr uint32_t kTestLayerCount = 1;
+constexpr uint64_t kTestUsage = GraphicBuffer::USAGE_SW_WRITE_OFTEN;
+
+} // namespace
+
+using ::testing::DoAll;
+using ::testing::Return;
+using ::testing::SetArgPointee;
+
+class TestableGraphicBufferAllocator : public GraphicBufferAllocator {
+public:
+    TestableGraphicBufferAllocator() {
+        mAllocator = std::make_unique<const mock::MockGrallocAllocator>();
+    }
+    void setUpAllocateExpectations(status_t err, uint32_t stride) {
+        std::cout << "Setting expected stride to " << stride << std::endl;
+        EXPECT_CALL(*(reinterpret_cast<const mock::MockGrallocAllocator*>(mAllocator.get())),
+                    allocate)
+                .WillOnce(DoAll(SetArgPointee<6>(stride), Return(err)));
+    }
+    std::unique_ptr<const GrallocAllocator>& getAllocator() { return mAllocator; }
+};
+
+class GraphicBufferAllocatorTest : public testing::Test {
+public:
+    GraphicBufferAllocatorTest() : mAllocator() {}
+    const TestableGraphicBufferAllocator& getAllocator() { return mAllocator; }
+
+protected:
+    TestableGraphicBufferAllocator mAllocator;
+};
+
+TEST_F(GraphicBufferAllocatorTest, AllocateNoError) {
+    mAllocator.setUpAllocateExpectations(NO_ERROR, kTestWidth);
+    android::PixelFormat format = PIXEL_FORMAT_RGBA_8888;
+    uint32_t stride = 0;
+    buffer_handle_t handle;
+    status_t err = mAllocator.allocate(kTestWidth, kTestHeight, format, kTestLayerCount, kTestUsage,
+                                       &handle, &stride, 0, "GraphicBufferAllocatorTest");
+    ASSERT_EQ(NO_ERROR, err);
+    ASSERT_EQ(kTestWidth, stride);
+}
+
+TEST_F(GraphicBufferAllocatorTest, AllocateZeroStride) {
+    android::PixelFormat format = PIXEL_FORMAT_RGBA_8888;
+    uint32_t expectedStride = 0;
+
+    mAllocator.setUpAllocateExpectations(NO_ERROR, expectedStride);
+    uint32_t stride = 0;
+    buffer_handle_t handle;
+    // a divide by zero would cause a crash
+    status_t err = mAllocator.allocate(kTestWidth, kTestHeight, format, kTestLayerCount, kTestUsage,
+                                       &handle, &stride, 0, "GraphicBufferAllocatorTest");
+    ASSERT_EQ(NO_ERROR, err);
+    ASSERT_EQ(expectedStride, stride);
+}
+
+TEST_F(GraphicBufferAllocatorTest, AllocateLargeStride) {
+    uint32_t height = std::numeric_limits<uint32_t>::max();
+    uint32_t bpp = 4;
+    android::PixelFormat format = PIXEL_FORMAT_RGBA_8888;
+
+    if (std::numeric_limits<size_t>::max() / height / bpp >= std::numeric_limits<uint32_t>::max()) {
+        std::cout << "stride cannot cause overflow" << std::endl;
+        GTEST_SUCCEED() << "stride cannot cause overflow";
+        return;
+    }
+    uint32_t width = std::numeric_limits<size_t>::max() / height / bpp;
+
+    uint32_t expectedStride = std::numeric_limits<uint32_t>::max();
+
+    mAllocator.setUpAllocateExpectations(NO_ERROR, expectedStride);
+    uint32_t stride = 0;
+    buffer_handle_t handle;
+    // an overflow would cause a crash
+    status_t err = mAllocator.allocate(width, height, format, kTestLayerCount, kTestUsage, &handle,
+                                       &stride, 0, "GraphicBufferAllocatorTest");
+    ASSERT_EQ(NO_ERROR, err);
+    ASSERT_EQ(expectedStride, stride);
+}
+} // namespace android
diff --git a/libs/ui/tests/mock/MockGrallocAllocator.cpp b/libs/ui/tests/mock/MockGrallocAllocator.cpp
new file mode 100644
index 0000000..d71e25f
--- /dev/null
+++ b/libs/ui/tests/mock/MockGrallocAllocator.cpp
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2019 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.
+ */
+
+#include "MockGrallocAllocator.h"
+
+namespace android {
+
+namespace mock {
+
+MockGrallocAllocator::MockGrallocAllocator() = default;
+MockGrallocAllocator::~MockGrallocAllocator() = default;
+
+} // namespace mock
+} // namespace android
diff --git a/libs/ui/tests/mock/MockGrallocAllocator.h b/libs/ui/tests/mock/MockGrallocAllocator.h
new file mode 100644
index 0000000..22c80a4
--- /dev/null
+++ b/libs/ui/tests/mock/MockGrallocAllocator.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2019 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.
+ */
+
+#pragma once
+
+#include <gmock/gmock.h>
+
+#include <ui/Gralloc.h>
+
+namespace android {
+
+class GraphicBuffer;
+
+namespace mock {
+
+class MockGrallocAllocator : public GrallocAllocator {
+public:
+    MockGrallocAllocator();
+    ~MockGrallocAllocator() override;
+
+    MOCK_METHOD(bool, isLoaded, (), (const, override));
+    MOCK_METHOD(std::string, dumpDebugInfo, (), (const, override));
+    MOCK_METHOD(status_t, allocate,
+                (uint32_t width, uint32_t height, PixelFormat format, uint32_t layerCount,
+                 uint64_t usage, uint32_t bufferCount, uint32_t* outStride,
+                 buffer_handle_t* outBufferHandles),
+                (const, override));
+};
+
+} // namespace mock
+} // namespace android
diff --git a/libs/vr/libpdx_uds/service_endpoint.cpp b/libs/vr/libpdx_uds/service_endpoint.cpp
index ecbfdba..9bc70ea 100644
--- a/libs/vr/libpdx_uds/service_endpoint.cpp
+++ b/libs/vr/libpdx_uds/service_endpoint.cpp
@@ -535,13 +535,13 @@
   *message = Message{info};
   auto* state = static_cast<MessageState*>(message->GetState());
   state->request = std::move(request);
-  if (request.send_len > 0 && !request.is_impulse) {
-    state->request_data.resize(request.send_len);
+  if (state->request.send_len > 0 && !state->request.is_impulse) {
+    state->request_data.resize(state->request.send_len);
     status = ReceiveData(channel_fd, state->request_data.data(),
                          state->request_data.size());
   }
 
-  if (status && request.is_impulse)
+  if (status && state->request.is_impulse)
     status = ReenableEpollEvent(channel_fd);
 
   if (!status) {
diff --git a/opengl/libagl/Android.bp b/opengl/libagl/Android.bp
index f5bf015..c4fca1b 100644
--- a/opengl/libagl/Android.bp
+++ b/opengl/libagl/Android.bp
@@ -33,14 +33,6 @@
         arm: {
             cflags: ["-fstrict-aliasing"],
         },
-
-        mips: {
-            cflags: [
-                "-fstrict-aliasing",
-                // The graphics code can generate division by zero
-                "-mno-check-zero-division",
-            ],
-        },
     },
 }
 
@@ -67,12 +59,6 @@
                 "iterators.S",
             ],
         },
-
-        mips: {
-            rev6: {
-                srcs: ["arch-mips/fixed_asm.S"],
-            },
-        },
     },
 
     relative_install_path: "egl",
diff --git a/opengl/libagl/arch-mips/fixed_asm.S b/opengl/libagl/arch-mips/fixed_asm.S
deleted file mode 100644
index a30ffc5..0000000
--- a/opengl/libagl/arch-mips/fixed_asm.S
+++ /dev/null
@@ -1,61 +0,0 @@
-/* libs/opengles/arch-mips/fixed_asm.S
-**
-** Copyright 2012, 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.
-*/
-
-
-    .text
-    .align 4
-
-/*
- * this version rounds-to-nearest and saturates numbers
- * outside the range (but not NaNs).
- */
-
-	.global	gglFloatToFixed
-	.ent	gglFloatToFixed
-	.type	gglFloatToFixed, @function
-gglFloatToFixed:
-#if !defined(__mips_soft_float)
-	mfc1	$a0,$f12
-#endif
-	srl	$t0,$a0,31		/* t0 <- sign bit */
-	srl	$t1,$a0,23
-	andi	$t1,$t1,0xff		/* get the e */
-	li	$t2,0x8e
-	subu	$t1,$t2,$t1		/* t1=127+15-e */
-	blez	$t1,0f			/* t1<=0? */
-	sll	$t2,$a0,8		/* mantissa<<8 */
-	lui	$t3,0x8000
-	or	$t2,$t2,$t3		/* add the missing 1 */
-	subu	$t1,$t1,1
-	srl	$v0,$t2,$t1
-	sltiu	$t3,$t1,32		/* t3=1 if t1<32, else t3=0. t1>=32 means the float value is too small. */
-	andi	$t4,$v0,0x1
-	srl	$v0,$v0,1		/* scale to 16.16 */
-	addu	$v0,$v0,$t4		/* round-to-nearest */
-	subu	$t2,$zero,$v0
-	movn	$v0,$t2,$t0		/* if negative? */
-	or	$t1,$a0,$zero		/* a0=0? */
-	movz	$v0,$zero,$t1
-	movz	$v0,$zero,$t3		/* t3=0 then res=0 */
-	jr	$ra
-0:
-	lui	$t1,0x8000
-	and	$v0,$a0,$t1		/* keep only the sign bit */
-	li	$t1,0x7fffffff
-	movz	$v0,$t1,$t0		/* positive, maximum value */
-	jr	$ra
-	.end	gglFloatToFixed
diff --git a/opengl/libagl/fp.cpp b/opengl/libagl/fp.cpp
index a7a4f7b..ae5f1fe 100644
--- a/opengl/libagl/fp.cpp
+++ b/opengl/libagl/fp.cpp
@@ -19,7 +19,7 @@
 
 // ----------------------------------------------------------------------------
 
-#if !(defined(__arm__) || (defined(__mips__) && !defined(__LP64__) && __mips_isa_rev < 6))
+#if !defined(__arm__)
 GGLfixed gglFloatToFixed(float v) {   
     return GGLfixed(floorf(v * 65536.0f + 0.5f));
 }
diff --git a/opengl/libagl/matrix.h b/opengl/libagl/matrix.h
index cafc119..c9a38a9 100644
--- a/opengl/libagl/matrix.h
+++ b/opengl/libagl/matrix.h
@@ -74,30 +74,6 @@
         ); 
     return r;
 
-#elif defined(__mips__) && !defined(__LP64__) && __mips_isa_rev < 6
-
-    GLfixed res;
-    int32_t t1,t2,t3;
-    asm(
-        "mult  %[a], %[a]       \r\n"
-        "li    %[res],0x8000 \r\n"
-        "madd   %[b],%[b] \r\n"
-        "move   %[t3],$zero \r\n"
-        "madd   %[c],%[c] \r\n"
-        "mflo   %[t1]\r\n"
-        "mfhi   %[t2]\r\n"
-        "addu   %[t1],%[res],%[t1]\r\n"          /*add 0x8000*/
-        "sltu   %[t3],%[t1],%[res]\r\n"
-        "addu   %[t2],%[t2],%[t3]\r\n"
-        "srl    %[res],%[t1],16\r\n"
-        "sll    %[t2],%[t2],16\r\n"
-        "or     %[res],%[res],%[t2]\r\n"
-        :   [res]"=&r"(res),[t1]"=&r"(t1),[t2]"=&r"(t2),[t3]"=&r"(t3)
-        :   [a] "r" (a),[b] "r" (b),[c] "r" (c)
-        : "%hi","%lo"
-        );
-    return res;
-
 #else
 
     return ((   int64_t(a)*a +
@@ -160,26 +136,6 @@
         ); 
     return r;
     
-#elif defined(__mips__)  && !defined(__LP64__) && __mips_isa_rev < 6
-
-    GLfixed res;
-    int32_t t1,t2;
-    asm(
-        "mult  %[a0],%[b0]       \r\n"
-        "madd  %[a1],%[b1]       \r\n"
-        "madd  %[a2],%[b2]       \r\n"
-        "mflo  %[t2]\r\n"
-        "mfhi  %[t1]\r\n"
-        "srl    %[t2],%[t2],16\r\n"
-        "sll    %[t1],%[t1],16\r\n"
-        "or     %[t2],%[t2],%[t1]\r\n"
-        "addu   %[res],%[t2],%[c]"
-        :   [res]"=&r"(res),[t1]"=&r"(t1),[t2]"=&r"(t2)
-        :   [a0] "r" (a0),[b0] "r" (b0),[a1] "r" (a1),[b1] "r" (b1),[a2] "r" (a2),[b2] "r" (b2),[c] "r" (c)
-        : "%hi","%lo"
-        );
-    return res;
-
 #else
 
     return ((   int64_t(a0)*b0 +
diff --git a/opengl/libs/EGL/egl_display.cpp b/opengl/libs/EGL/egl_display.cpp
index 67d69b4..a58e87c 100644
--- a/opengl/libs/EGL/egl_display.cpp
+++ b/opengl/libs/EGL/egl_display.cpp
@@ -158,13 +158,16 @@
             // NOTE: This is only valid if the backend is OpenGL
             attrs.push_back(EGL_PLATFORM_ANGLE_EGL_HANDLE_ANGLE);
             attrs.push_back(vendorEGL);
+
+            // Context virtualization is only available on GL back-end.
+            // Needed to support threading with GL back-end
+            attrs.push_back(EGL_PLATFORM_ANGLE_CONTEXT_VIRTUALIZATION_ANGLE);
+            attrs.push_back(EGL_FALSE);
             break;
         default:
-            ALOGV("%s: Requesting Unknown (%d) ANGLE back-end", __FUNCTION__, cnx->angleBackend);
+            ALOGE("%s: Requesting Unknown (%d) ANGLE back-end", __FUNCTION__, cnx->angleBackend);
             break;
     }
-    attrs.push_back(EGL_PLATFORM_ANGLE_CONTEXT_VIRTUALIZATION_ANGLE);
-    attrs.push_back(EGL_FALSE);
 
     return true;
 }
diff --git a/opengl/tools/glgen/gen b/opengl/tools/glgen/gen
index 41fcf1b..9efd38f 100755
--- a/opengl/tools/glgen/gen
+++ b/opengl/tools/glgen/gen
@@ -1,6 +1,18 @@
 #!/bin/bash
 set -u
 set -e
+
+if [ -z "$ANDROID_BUILD_TOP" ] ; then
+    echo "ANDROID_BUILD_TOP is not set, did you run lunch?"
+    exit 1
+fi
+
+# Avoid spewing files in any location other than the intended one.
+if [ ! -x "$PWD/gen" ] ; then
+    echo "Run this script from its parent directory".
+    exit 1
+fi
+
 rm -rf out generated
 
 mkdir out
@@ -92,7 +104,7 @@
 
 # Add UnsupportedAppUsage.java to known sources.
 mkdir -p out/android/compat/annotation
-cp ../../../../../tools/platform-compat/annotation/src/java/android/compat/annotation/UnsupportedAppUsage.java out/android/compat/annotation
+cp ${ANDROID_BUILD_TOP}/tools/platform-compat/java/android/compat/annotation/UnsupportedAppUsage.java out/android/compat/annotation
 
 pushd out > /dev/null
 mkdir classes
@@ -153,23 +165,23 @@
     fi
 }
 
-compareGenerated ../../../../base/core/jni generated/C com_google_android_gles_jni_GLImpl.cpp
-compareGenerated ../../../../base/opengl/java/com/google/android/gles_jni generated/com/google/android/gles_jni GLImpl.java
+compareGenerated ${ANDROID_BUILD_TOP}/frameworks/base/core/jni generated/C com_google_android_gles_jni_GLImpl.cpp
+compareGenerated ${ANDROID_BUILD_TOP}/frameworks/base/opengl/java/com/google/android/gles_jni generated/com/google/android/gles_jni GLImpl.java
 
 for x in GL.java GL10.java GL10Ext.java GL11.java GL11Ext.java GL11ExtensionPack.java
 do
-    compareGenerated ../../../../base/opengl/java/javax/microedition/khronos/opengles generated/javax/microedition/khronos/opengles $x
+    compareGenerated ${ANDROID_BUILD_TOP}/frameworks/base/opengl/java/javax/microedition/khronos/opengles generated/javax/microedition/khronos/opengles $x
 done
 
 for x in EGL14 EGL15 EGLExt GLES10 GLES10Ext GLES11 GLES11Ext GLES20 GLES30 GLES31 GLES31Ext GLES32
 do
-    compareGenerated ../../../../base/opengl/java/android/opengl generated/android/opengl ${x}.java
-    compareGenerated ../../../../base/core/jni generated/C android_opengl_${x}.cpp
+    compareGenerated ${ANDROID_BUILD_TOP}/frameworks/base/opengl/java/android/opengl generated/android/opengl ${x}.java
+    compareGenerated ${ANDROID_BUILD_TOP}/frameworks/base/core/jni generated/C android_opengl_${x}.cpp
 done
 
 for x in EGLConfig EGLContext EGLDisplay EGLObjectHandle EGLSurface EGLImage EGLSync
 do
-    compareGenerated ../../../../base/opengl/java/android/opengl generated/android/opengl ${x}.java
+    compareGenerated ${ANDROID_BUILD_TOP}/frameworks/base/opengl/java/android/opengl generated/android/opengl ${x}.java
 done
 
 if [ $KEEP_GENERATED == "0" ] ; then
diff --git a/opengl/tools/glgen/stubs/egl/EGL14Header.java-if b/opengl/tools/glgen/stubs/egl/EGL14Header.java-if
index 9932556..951ecff 100644
--- a/opengl/tools/glgen/stubs/egl/EGL14Header.java-if
+++ b/opengl/tools/glgen/stubs/egl/EGL14Header.java-if
@@ -21,8 +21,8 @@
 import android.compat.annotation.UnsupportedAppUsage;
 import android.graphics.SurfaceTexture;
 import android.view.Surface;
-import android.view.SurfaceView;
 import android.view.SurfaceHolder;
+import android.view.SurfaceView;
 
 /**
  * EGL 1.4
diff --git a/opengl/tools/glgen/stubs/jsr239/GLImplHeader.java-impl b/opengl/tools/glgen/stubs/jsr239/GLImplHeader.java-impl
index afcc3eb..32c9d7d 100644
--- a/opengl/tools/glgen/stubs/jsr239/GLImplHeader.java-impl
+++ b/opengl/tools/glgen/stubs/jsr239/GLImplHeader.java-impl
@@ -19,6 +19,7 @@
 package com.google.android.gles_jni;
 
 import android.app.AppGlobals;
+import android.compat.annotation.UnsupportedAppUsage;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.IPackageManager;
 import android.os.Build;
@@ -26,6 +27,7 @@
 import android.util.Log;
 
 import java.nio.Buffer;
+
 import javax.microedition.khronos.opengles.GL10;
 import javax.microedition.khronos.opengles.GL10Ext;
 import javax.microedition.khronos.opengles.GL11;
@@ -55,6 +57,7 @@
     private boolean have_OES_framebuffer_object;
     private boolean have_OES_texture_cube_map;
 
+    @UnsupportedAppUsage
     public GLImpl() {
     }
 
diff --git a/services/inputflinger/InputClassifier.cpp b/services/inputflinger/InputClassifier.cpp
index 6a7f279..ef1a224 100644
--- a/services/inputflinger/InputClassifier.cpp
+++ b/services/inputflinger/InputClassifier.cpp
@@ -82,7 +82,7 @@
 // Check if the "deep touch" feature is on.
 static bool deepPressEnabled() {
     std::string flag_value = server_configurable_flags::GetServerConfigurableFlag(
-            INPUT_NATIVE_BOOT, DEEP_PRESS_ENABLED, "false");
+            INPUT_NATIVE_BOOT, DEEP_PRESS_ENABLED, "true");
     std::transform(flag_value.begin(), flag_value.end(), flag_value.begin(), ::tolower);
     if (flag_value == "1" || flag_value == "true") {
         ALOGI("Deep press feature enabled.");
diff --git a/services/inputflinger/InputManager.cpp b/services/inputflinger/InputManager.cpp
index 359325f..7d30672 100644
--- a/services/inputflinger/InputManager.cpp
+++ b/services/inputflinger/InputManager.cpp
@@ -119,10 +119,6 @@
     }
 }
 
-void InputManager::transferTouchFocus(const sp<IBinder>& fromToken, const sp<IBinder>& toToken) {
-    mDispatcher->transferTouchFocus(fromToken, toToken);
-}
-
 // Used by tests only.
 void InputManager::registerInputChannel(const sp<InputChannel>& channel) {
     IPCThreadState* ipc = IPCThreadState::self();
diff --git a/services/inputflinger/InputManager.h b/services/inputflinger/InputManager.h
index f3da324..40f66d8 100644
--- a/services/inputflinger/InputManager.h
+++ b/services/inputflinger/InputManager.h
@@ -96,7 +96,6 @@
 
     virtual void setInputWindows(const std::vector<InputWindowInfo>& handles,
             const sp<ISetInputWindowsListener>& setInputWindowsListener);
-    virtual void transferTouchFocus(const sp<IBinder>& fromToken, const sp<IBinder>& toToken);
 
     virtual void registerInputChannel(const sp<InputChannel>& channel);
     virtual void unregisterInputChannel(const sp<InputChannel>& channel);
diff --git a/services/inputflinger/dispatcher/Entry.cpp b/services/inputflinger/dispatcher/Entry.cpp
index 8d05640..a4d9e4e 100644
--- a/services/inputflinger/dispatcher/Entry.cpp
+++ b/services/inputflinger/dispatcher/Entry.cpp
@@ -18,10 +18,12 @@
 
 #include "Connection.h"
 
+#include <android-base/properties.h>
 #include <android-base/stringprintf.h>
 #include <cutils/atomic.h>
 #include <inttypes.h>
 
+using android::base::GetBoolProperty;
 using android::base::StringPrintf;
 
 namespace android::inputdispatcher {
@@ -133,7 +135,11 @@
 KeyEntry::~KeyEntry() {}
 
 void KeyEntry::appendDescription(std::string& msg) const {
-    msg += StringPrintf("KeyEvent(deviceId=%d, source=0x%08x, displayId=%" PRId32 ", action=%s, "
+    msg += StringPrintf("KeyEvent");
+    if (!GetBoolProperty("ro.debuggable", false)) {
+        return;
+    }
+    msg += StringPrintf("(deviceId=%d, source=0x%08x, displayId=%" PRId32 ", action=%s, "
                         "flags=0x%08x, keyCode=%d, scanCode=%d, metaState=0x%08x, "
                         "repeatCount=%d), policyFlags=0x%08x",
                         deviceId, source, displayId, keyActionToString(action).c_str(), flags,
@@ -186,7 +192,11 @@
 MotionEntry::~MotionEntry() {}
 
 void MotionEntry::appendDescription(std::string& msg) const {
-    msg += StringPrintf("MotionEvent(deviceId=%d, source=0x%08x, displayId=%" PRId32
+    msg += StringPrintf("MotionEvent");
+    if (!GetBoolProperty("ro.debuggable", false)) {
+        return;
+    }
+    msg += StringPrintf("(deviceId=%d, source=0x%08x, displayId=%" PRId32
                         ", action=%s, actionButton=0x%08x, flags=0x%08x, metaState=0x%08x, "
                         "buttonState=0x%08x, "
                         "classification=%s, edgeFlags=0x%08x, xPrecision=%.1f, yPrecision=%.1f, "
diff --git a/services/inputflinger/host/InputFlinger.h b/services/inputflinger/host/InputFlinger.h
index d8b352c..973b4f9 100644
--- a/services/inputflinger/host/InputFlinger.h
+++ b/services/inputflinger/host/InputFlinger.h
@@ -42,7 +42,6 @@
     virtual status_t dump(int fd, const Vector<String16>& args);
     void setInputWindows(const std::vector<InputWindowInfo>&,
             const sp<ISetInputWindowsListener>&) {}
-    void transferTouchFocus(const sp<IBinder>&, const sp<IBinder>&) {}
     void registerInputChannel(const sp<InputChannel>&) {}
     void unregisterInputChannel(const sp<InputChannel>&) {}
 
diff --git a/services/surfaceflinger/ContainerLayer.cpp b/services/surfaceflinger/ContainerLayer.cpp
index 7927fa9..e33bedb 100644
--- a/services/surfaceflinger/ContainerLayer.cpp
+++ b/services/surfaceflinger/ContainerLayer.cpp
@@ -35,11 +35,7 @@
     return false;
 }
 
-bool ContainerLayer::canReceiveInput() const {
-    return !isHiddenByPolicy();
-}
 
 void ContainerLayer::setPerFrameData(const sp<const DisplayDevice>&, const ui::Transform&,
                                      const Rect&, int32_t, const ui::Dataspace) {}
-
 } // namespace android
diff --git a/services/surfaceflinger/ContainerLayer.h b/services/surfaceflinger/ContainerLayer.h
index 7222a3e..e6dbfcc 100644
--- a/services/surfaceflinger/ContainerLayer.h
+++ b/services/surfaceflinger/ContainerLayer.h
@@ -31,8 +31,6 @@
     const char* getTypeId() const override { return "ContainerLayer"; }
     bool isVisible() const override;
 
-    bool canReceiveInput() const override;
-
     void setPerFrameData(const sp<const DisplayDevice>& display, const ui::Transform& transform,
                          const Rect& viewport, int32_t supportedPerFrameMetadata,
                          const ui::Dataspace targetDataspace) override;
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index dda15e9..3e6dded 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -2106,7 +2106,7 @@
 }
 
 bool Layer::canReceiveInput() const {
-    return isVisible();
+    return !isHiddenByPolicy();
 }
 
 compositionengine::OutputLayer* Layer::findOutputLayerForDisplay(
diff --git a/services/surfaceflinger/OWNERS b/services/surfaceflinger/OWNERS
index f2bc65d..6bb999c 100644
--- a/services/surfaceflinger/OWNERS
+++ b/services/surfaceflinger/OWNERS
@@ -3,7 +3,6 @@
 alecmouri@google.com
 chaviw@google.com
 lpy@google.com
-marissaw@google.com
 racarr@google.com
 steventhomas@google.com
 stoza@google.com
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 60b3a11..1788560 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -574,9 +574,9 @@
                 mRefreshRateConfigs.getRefreshRate(RefreshRateType::PERFORMANCE);
 
         if (performanceRefreshRate && isDisplayConfigAllowed(performanceRefreshRate->configId)) {
-            setRefreshRateTo(RefreshRateType::PERFORMANCE, Scheduler::ConfigEvent::None);
+            setRefreshRateTo(RefreshRateType::PERFORMANCE, Scheduler::ConfigEvent::Changed);
         } else {
-            setRefreshRateTo(RefreshRateType::DEFAULT, Scheduler::ConfigEvent::None);
+            setRefreshRateTo(RefreshRateType::DEFAULT, Scheduler::ConfigEvent::Changed);
         }
     }));
 }
@@ -3029,7 +3029,7 @@
         setInputWindowsFinished();
     }
 
-    executeInputWindowCommands();
+    mInputWindowCommands.clear();
 }
 
 void SurfaceFlinger::updateInputWindowInfo() {
@@ -3053,19 +3053,6 @@
     mPendingInputWindowCommands.clear();
 }
 
-void SurfaceFlinger::executeInputWindowCommands() {
-    for (const auto& transferTouchFocusCommand : mInputWindowCommands.transferTouchFocusCommands) {
-        if (transferTouchFocusCommand.fromToken != nullptr &&
-            transferTouchFocusCommand.toToken != nullptr &&
-            transferTouchFocusCommand.fromToken != transferTouchFocusCommand.toToken) {
-            mInputFlinger->transferTouchFocus(transferTouchFocusCommand.fromToken,
-                                              transferTouchFocusCommand.toToken);
-        }
-    }
-
-    mInputWindowCommands.clear();
-}
-
 void SurfaceFlinger::updateCursorAsync()
 {
     for (const auto& [token, display] : mDisplays) {
@@ -6236,7 +6223,7 @@
         return NO_ERROR;
     }
 
-    postMessageSync(new LambdaMessage([&]() NO_THREAD_SAFETY_ANALYSIS {
+    postMessageSync(new LambdaMessage([&]() {
         const auto display = getDisplayDeviceLocked(displayToken);
         if (!display) {
             ALOGE("Attempt to set allowed display configs for invalid display token %p",
@@ -6244,6 +6231,7 @@
         } else if (display->isVirtual()) {
             ALOGW("Attempt to set allowed display configs for virtual display");
         } else {
+            Mutex::Autolock lock(mStateLock);
             setAllowedDisplayConfigsInternal(display, allowedConfigs);
         }
     }));
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 49bb574..8e4203a 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -554,7 +554,6 @@
     void updateInputFlinger();
     void updateInputWindowInfo();
     void commitInputWindowCommands() REQUIRES(mStateLock);
-    void executeInputWindowCommands();
     void setInputWindowsFinished();
     void updateCursorAsync();
 
diff --git a/services/surfaceflinger/tests/AndroidTest.xml b/services/surfaceflinger/tests/AndroidTest.xml
index 8315037..000628f 100644
--- a/services/surfaceflinger/tests/AndroidTest.xml
+++ b/services/surfaceflinger/tests/AndroidTest.xml
@@ -18,6 +18,7 @@
         <option name="cleanup" value="true" />
         <option name="push" value="SurfaceFlinger_test->/data/local/tmp/SurfaceFlinger_test" />
     </target_preparer>
+    <target_preparer class="com.android.tradefed.targetprep.RootTargetPreparer"/>
     <option name="test-suite-tag" value="apct" />
     <test class="com.android.tradefed.testtype.GTest" >
         <option name="native-test-device-path" value="/data/local/tmp" />