Merge "SF: resyncToHardwareVsync after sending a notifyExpectedPresent hint." into main

commit: 05f45ce7ebd164564f1f9e7be89aef11f0347473 [log] [tgz]
author: Ram Indani <ramindani@google.com> Thu Sep 05 00:18:47 2024 +0000
committer: Android (Google) Code Review <android-gerrit@google.com> Thu Sep 05 00:18:47 2024 +0000
tree: adae187c4b62e56a60495874013cb708669a3769
parent: 99d4307044655da8ffe4e51f8a16d5894686fb16 [diff]
parent: 2ff3cd44c9152854313a02ff36ac814e90777d91 [diff]
diff --git a/cmds/atrace/atrace_userdebug.rc b/cmds/atrace/atrace_userdebug.rc
index fa7be18..041ffe1 100644
--- a/cmds/atrace/atrace_userdebug.rc
+++ b/cmds/atrace/atrace_userdebug.rc

@@ -24,3 +24,7 @@
     chmod 0666 /sys/kernel/debug/tracing/events/raw_syscalls/sys_enter/filter
     chmod 0666 /sys/kernel/tracing/events/raw_syscalls/sys_exit/filter
     chmod 0666 /sys/kernel/debug/tracing/events/raw_syscalls/sys_exit/filter
+
+    # Allow traced_probes to use the kprobe interface
+    chmod 0666 /sys/kernel/debug/tracing/kprobe_events
+    chmod 0666 /sys/kernel/tracing/kprobe_events

diff --git a/cmds/installd/otapreopt_script.sh b/cmds/installd/otapreopt_script.sh
index 28bd793..b7ad331 100644
--- a/cmds/installd/otapreopt_script.sh
+++ b/cmds/installd/otapreopt_script.sh

@@ -50,6 +50,37 @@
   exit 1
 fi
 
+# A source that infinitely emits arbitrary lines.
+# When connected to STDIN of another process, this source keeps STDIN open until
+# the consumer process closes STDIN or this script dies.
+function infinite_source {
+  while echo .; do
+    sleep 1
+  done
+}
+
+PR_DEXOPT_JOB_VERSION="$(pm art pr-dexopt-job --version)"
+if (( $? == 0 )) && (( $PR_DEXOPT_JOB_VERSION >= 3 )); then
+  # Delegate to Pre-reboot Dexopt, a feature of ART Service.
+  # ART Service decides what to do with this request:
+  # - If Pre-reboot Dexopt is disabled or unsupported, the command returns
+  #   non-zero. This is always the case if the current system is Android 14 or
+  #   earlier.
+  # - If Pre-reboot Dexopt is enabled in synchronous mode, the command blocks
+  #   until Pre-reboot Dexopt finishes, and returns zero no matter it succeeds or
+  #   not. This is the default behavior if the current system is Android 15.
+  # - If Pre-reboot Dexopt is enabled in asynchronous mode, the command schedules
+  #   an asynchronous job and returns 0 immediately. The job will then run by the
+  #   job scheduler when the device is idle and charging.
+  if infinite_source | pm art on-ota-staged --slot "$TARGET_SLOT_SUFFIX"; then
+    # Handled by Pre-reboot Dexopt.
+    exit 0
+  fi
+  echo "Pre-reboot Dexopt not enabled. Fall back to otapreopt."
+else
+  echo "Pre-reboot Dexopt is too old. Fall back to otapreopt."
+fi
+
 if [ "$(/system/bin/otapreopt_chroot --version)" != 2 ]; then
   # We require an updated chroot wrapper that reads dexopt commands from stdin.
   # Even if we kept compat with the old binary, the OTA preopt wouldn't work due

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--- /dev/null
+++ b/cmds/installd/tests/corpus/seed-2024-08-29-98
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new file mode 100644
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--- /dev/null
+++ b/cmds/installd/tests/corpus/seed-2024-08-29-99
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diff --git a/cmds/installd/tests/installd_dexopt_test.cpp b/cmds/installd/tests/installd_dexopt_test.cpp
index ee91d80..e89543e 100644
--- a/cmds/installd/tests/installd_dexopt_test.cpp
+++ b/cmds/installd/tests/installd_dexopt_test.cpp

@@ -1449,7 +1449,7 @@
 
 class BootProfileTest : public ProfileTest {
   public:
-    std::vector<const std::string> extra_apps_;
+    std::vector<std::string> extra_apps_;
     std::vector<int64_t> extra_ce_data_inodes_;
 
     virtual void SetUp() {

diff --git a/cmds/installd/tests/installd_utils_test.cpp b/cmds/installd/tests/installd_utils_test.cpp
index 910cd63..19201b2 100644
--- a/cmds/installd/tests/installd_utils_test.cpp
+++ b/cmds/installd/tests/installd_utils_test.cpp

@@ -101,6 +101,9 @@
     EXPECT_EQ(0, validate_apk_path(path2))
             << path2 << " should be allowed as a valid path";
 
+    const char* path3 = TEST_APP_DIR "..example..com../example.apk";
+    EXPECT_EQ(0, validate_apk_path(path3)) << path3 << " should be allowed as a valid path";
+
     const char *badint1 = TEST_APP_DIR "../example.apk";
     EXPECT_EQ(-1, validate_apk_path(badint1))
             << badint1 << " should be rejected as a invalid path";

diff --git a/cmds/installd/utils.cpp b/cmds/installd/utils.cpp
index ffc082d..b05c655 100644
--- a/cmds/installd/utils.cpp
+++ b/cmds/installd/utils.cpp

@@ -1040,25 +1040,30 @@
         LOG(ERROR) << "Invalid directory " << dir;
         return -1;
     }
-    if (path.find("..") != std::string::npos) {
-        LOG(ERROR) << "Invalid path " << path;
-        return -1;
-    }
 
     if (path.compare(0, dir.size(), dir) != 0) {
         // Common case, path isn't under directory
         return -1;
     }
 
-    // Count number of subdirectories
-    auto pos = path.find('/', dir.size());
+    // Count number of subdirectories and invalidate ".." subdirectories
+    auto last = dir.size();
+    auto pos = path.find('/', last);
     int count = 0;
     while (pos != std::string::npos) {
-        auto next = path.find('/', pos + 1);
-        if (next > pos + 1) {
+        if (pos > last + 1) {
             count++;
         }
-        pos = next;
+        if (path.substr(last, pos - last) == "..") {
+            LOG(ERROR) << "Invalid path " << path;
+            return -1;
+        }
+        last = pos + 1;
+        pos = path.find('/', last);
+    }
+    if (path.substr(last, path.size() - last) == "..") {
+        LOG(ERROR) << "Invalid path " << path;
+        return -1;
     }
 
     if (count > maxSubdirs) {

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diff --git a/cmds/servicemanager/corpus/seed-2024-08-29-86 b/cmds/servicemanager/corpus/seed-2024-08-29-86
new file mode 100644
index 0000000..62f6765
--- /dev/null
+++ b/cmds/servicemanager/corpus/seed-2024-08-29-86
Binary files differ

diff --git a/cmds/servicemanager/corpus/seed-2024-08-29-87 b/cmds/servicemanager/corpus/seed-2024-08-29-87
new file mode 100644
index 0000000..eb54dcb
--- /dev/null
+++ b/cmds/servicemanager/corpus/seed-2024-08-29-87
Binary files differ

diff --git a/cmds/servicemanager/corpus/seed-2024-08-29-88 b/cmds/servicemanager/corpus/seed-2024-08-29-88
new file mode 100644
index 0000000..f38aaba
--- /dev/null
+++ b/cmds/servicemanager/corpus/seed-2024-08-29-88
Binary files differ

diff --git a/cmds/servicemanager/corpus/seed-2024-08-29-89 b/cmds/servicemanager/corpus/seed-2024-08-29-89
new file mode 100644
index 0000000..b4154ae
--- /dev/null
+++ b/cmds/servicemanager/corpus/seed-2024-08-29-89
Binary files differ

diff --git a/cmds/servicemanager/corpus/seed-2024-08-29-9 b/cmds/servicemanager/corpus/seed-2024-08-29-9
new file mode 100644
index 0000000..5dca38a
--- /dev/null
+++ b/cmds/servicemanager/corpus/seed-2024-08-29-9
Binary files differ

diff --git a/cmds/servicemanager/corpus/seed-2024-08-29-90 b/cmds/servicemanager/corpus/seed-2024-08-29-90
new file mode 100644
index 0000000..2725a79
--- /dev/null
+++ b/cmds/servicemanager/corpus/seed-2024-08-29-90
Binary files differ

diff --git a/cmds/servicemanager/corpus/seed-2024-08-29-91 b/cmds/servicemanager/corpus/seed-2024-08-29-91
new file mode 100644
index 0000000..9140e28
--- /dev/null
+++ b/cmds/servicemanager/corpus/seed-2024-08-29-91
Binary files differ

diff --git a/cmds/servicemanager/corpus/seed-2024-08-29-92 b/cmds/servicemanager/corpus/seed-2024-08-29-92
new file mode 100644
index 0000000..88dda1e
--- /dev/null
+++ b/cmds/servicemanager/corpus/seed-2024-08-29-92
Binary files differ

diff --git a/cmds/servicemanager/corpus/seed-2024-08-29-93 b/cmds/servicemanager/corpus/seed-2024-08-29-93
new file mode 100644
index 0000000..6dd114e
--- /dev/null
+++ b/cmds/servicemanager/corpus/seed-2024-08-29-93
Binary files differ

diff --git a/cmds/servicemanager/corpus/seed-2024-08-29-94 b/cmds/servicemanager/corpus/seed-2024-08-29-94
new file mode 100644
index 0000000..462c185
--- /dev/null
+++ b/cmds/servicemanager/corpus/seed-2024-08-29-94
Binary files differ

diff --git a/cmds/servicemanager/corpus/seed-2024-08-29-95 b/cmds/servicemanager/corpus/seed-2024-08-29-95
new file mode 100644
index 0000000..4472deb
--- /dev/null
+++ b/cmds/servicemanager/corpus/seed-2024-08-29-95
Binary files differ

diff --git a/cmds/servicemanager/corpus/seed-2024-08-29-96 b/cmds/servicemanager/corpus/seed-2024-08-29-96
new file mode 100644
index 0000000..875efc5
--- /dev/null
+++ b/cmds/servicemanager/corpus/seed-2024-08-29-96
Binary files differ

diff --git a/cmds/servicemanager/corpus/seed-2024-08-29-97 b/cmds/servicemanager/corpus/seed-2024-08-29-97
new file mode 100644
index 0000000..3f0277e
--- /dev/null
+++ b/cmds/servicemanager/corpus/seed-2024-08-29-97
Binary files differ

diff --git a/cmds/servicemanager/corpus/seed-2024-08-29-98 b/cmds/servicemanager/corpus/seed-2024-08-29-98
new file mode 100644
index 0000000..2c66436
--- /dev/null
+++ b/cmds/servicemanager/corpus/seed-2024-08-29-98
Binary files differ

diff --git a/cmds/servicemanager/corpus/seed-2024-08-29-99 b/cmds/servicemanager/corpus/seed-2024-08-29-99
new file mode 100644
index 0000000..9a6ff1d
--- /dev/null
+++ b/cmds/servicemanager/corpus/seed-2024-08-29-99
Binary files differ

diff --git a/include/audiomanager/IAudioManager.h b/include/audiomanager/IAudioManager.h
index 769670e..0b7e16b 100644
--- a/include/audiomanager/IAudioManager.h
+++ b/include/audiomanager/IAudioManager.h

@@ -27,7 +27,7 @@
 namespace android {
 
 // ----------------------------------------------------------------------------
-
+// TODO(b/309532236) replace this class with AIDL generated parcelable
 class IAudioManager : public IInterface
 {
 public:
@@ -43,6 +43,7 @@
         RELEASE_RECORDER                      = IBinder::FIRST_CALL_TRANSACTION + 6,
         PLAYER_SESSION_ID                     = IBinder::FIRST_CALL_TRANSACTION + 7,
         PORT_EVENT                            = IBinder::FIRST_CALL_TRANSACTION + 8,
+        PERMISSION_UPDATE_BARRIER             = IBinder::FIRST_CALL_TRANSACTION + 9,
     };
 
     DECLARE_META_INTERFACE(AudioManager)
@@ -63,6 +64,7 @@
     /*oneway*/ virtual status_t playerSessionId(audio_unique_id_t piid, audio_session_t sessionId) = 0;
     /*oneway*/ virtual status_t portEvent(audio_port_handle_t portId, player_state_t event,
                 const std::unique_ptr<os::PersistableBundle>& extras) = 0;
+    virtual status_t permissionUpdateBarrier() = 0;
 };
 
 // ----------------------------------------------------------------------------

diff --git a/include/ftl/small_vector.h b/include/ftl/small_vector.h
index 43e9fac..3d5d52e 100644
--- a/include/ftl/small_vector.h
+++ b/include/ftl/small_vector.h

@@ -234,7 +234,7 @@
   }
 
   // Extracts the elements as std::vector.
-  std::vector<T> promote() && {
+  std::vector<std::remove_const_t<T>> promote() && {
     if (dynamic()) {
       return std::get<Dynamic>(std::move(vector_)).promote();
     } else {
@@ -290,11 +290,11 @@
 class SmallVector<T, 0> final : details::ArrayTraits<T>,
                                 details::ArrayComparators<SmallVector>,
                                 details::ArrayIterators<SmallVector<T, 0>, T>,
-                                std::vector<T> {
+                                std::vector<std::remove_const_t<T>> {
   using details::ArrayTraits<T>::replace_at;
 
   using Iter = details::ArrayIterators<SmallVector, T>;
-  using Impl = std::vector<T>;
+  using Impl = std::vector<std::remove_const_t<T>>;
 
   friend Iter;
 
@@ -394,12 +394,12 @@
     pop_back();
   }
 
-  std::vector<T> promote() && { return std::move(*this); }
+  std::vector<std::remove_const_t<T>> promote() && { return std::move(*this); }
 
  private:
   template <typename U, std::size_t M>
   static Impl convert(SmallVector<U, M>&& other) {
-    if constexpr (std::is_constructible_v<Impl, std::vector<U>&&>) {
+    if constexpr (std::is_constructible_v<Impl, std::vector<std::remove_const_t<U>>&&>) {
       return std::move(other).promote();
     } else {
       SmallVector vector(other.size());

diff --git a/include/input/Input.h b/include/input/Input.h
index 1a3cb6a..a8684bd 100644
--- a/include/input/Input.h
+++ b/include/input/Input.h

@@ -251,6 +251,8 @@
     TOUCH_MODE = AINPUT_EVENT_TYPE_TOUCH_MODE,
     ftl_first = KEY,
     ftl_last = TOUCH_MODE,
+    // Used by LatencyTracker fuzzer
+    kMaxValue = ftl_last
 };
 
 std::string inputEventSourceToString(int32_t source);

diff --git a/libs/adbd_auth/adbd_auth.cpp b/libs/adbd_auth/adbd_auth.cpp
index 78896ed..d31cb3d 100644
--- a/libs/adbd_auth/adbd_auth.cpp
+++ b/libs/adbd_auth/adbd_auth.cpp

@@ -390,13 +390,16 @@
         }
     }
 
-    static constexpr const char* key_paths[] = {"/adb_keys", "/data/misc/adb/adb_keys"};
+    static constexpr std::pair<const char*, bool> key_paths[] = {
+        {"/adb_keys",               true  /* follow symlinks */       },
+        {"/data/misc/adb/adb_keys", false /* don't follow symlinks */ },
+    };
     void IteratePublicKeys(bool (*callback)(void*, const char*, size_t), void* opaque) {
-        for (const auto& path : key_paths) {
+        for (const auto& [path, follow_symlinks] : key_paths) {
             if (access(path, R_OK) == 0) {
                 LOG(INFO) << "adbd_auth: loading keys from " << path;
                 std::string content;
-                if (!android::base::ReadFileToString(path, &content)) {
+                if (!android::base::ReadFileToString(path, &content, follow_symlinks)) {
                     PLOG(ERROR) << "adbd_auth: couldn't read " << path;
                     continue;
                 }

diff --git a/libs/binder/Android.bp b/libs/binder/Android.bp
index de331b7..379b609 100644
--- a/libs/binder/Android.bp
+++ b/libs/binder/Android.bp

@@ -87,6 +87,11 @@
 
 cc_cmake_snapshot {
     name: "binder_sdk",
+    dist: {
+        targets: ["binder_sdk"],
+        dest: "binder_sdk.zip",
+    },
+
     modules_host: [
         "libbinder_sdk",
         "libbinder_sdk_single_threaded",

diff --git a/libs/binder/BackendUnifiedServiceManager.cpp b/libs/binder/BackendUnifiedServiceManager.cpp
index 54f687b..fee36da 100644
--- a/libs/binder/BackendUnifiedServiceManager.cpp
+++ b/libs/binder/BackendUnifiedServiceManager.cpp

@@ -46,7 +46,9 @@
                                                          os::Service* _out) {
     os::Service service;
     binder::Status status = mTheRealServiceManager->getService2(name, &service);
-    toBinderService(service, _out);
+    if (status.isOk()) {
+        return toBinderService(name, service, _out);
+    }
     return status;
 }
 
@@ -54,15 +56,38 @@
                                                           os::Service* _out) {
     os::Service service;
     binder::Status status = mTheRealServiceManager->checkService(name, &service);
-    toBinderService(service, _out);
+    if (status.isOk()) {
+        return toBinderService(name, service, _out);
+    }
     return status;
 }
 
-void BackendUnifiedServiceManager::toBinderService(const os::Service& in, os::Service* _out) {
+binder::Status BackendUnifiedServiceManager::toBinderService(const ::std::string& name,
+                                                             const os::Service& in,
+                                                             os::Service* _out) {
     switch (in.getTag()) {
         case os::Service::Tag::binder: {
+            if (in.get<os::Service::Tag::binder>() == nullptr) {
+                // failed to find a service. Check to see if we have any local
+                // injected Accessors for this service.
+                os::Service accessor;
+                binder::Status status = getInjectedAccessor(name, &accessor);
+                if (!status.isOk()) {
+                    *_out = os::Service::make<os::Service::Tag::binder>(nullptr);
+                    return status;
+                }
+                if (accessor.getTag() == os::Service::Tag::accessor &&
+                    accessor.get<os::Service::Tag::accessor>() != nullptr) {
+                    ALOGI("Found local injected service for %s, will attempt to create connection",
+                          name.c_str());
+                    // Call this again using the accessor Service to get the real
+                    // service's binder into _out
+                    return toBinderService(name, accessor, _out);
+                }
+            }
+
             *_out = in;
-            break;
+            return binder::Status::ok();
         }
         case os::Service::Tag::accessor: {
             sp<IBinder> accessorBinder = in.get<os::Service::Tag::accessor>();
@@ -70,7 +95,7 @@
             if (accessor == nullptr) {
                 ALOGE("Service#accessor doesn't have accessor. VM is maybe starting...");
                 *_out = os::Service::make<os::Service::Tag::binder>(nullptr);
-                break;
+                return binder::Status::ok();
             }
             auto request = [=] {
                 os::ParcelFileDescriptor fd;
@@ -83,10 +108,15 @@
                 }
             };
             auto session = RpcSession::make();
-            session->setupPreconnectedClient(base::unique_fd{}, request);
+            status_t status = session->setupPreconnectedClient(base::unique_fd{}, request);
+            if (status != OK) {
+                ALOGE("Failed to set up preconnected binder RPC client: %s",
+                      statusToString(status).c_str());
+                return binder::Status::fromStatusT(status);
+            }
             session->setSessionSpecificRoot(accessorBinder);
             *_out = os::Service::make<os::Service::Tag::binder>(session->getRootObject());
-            break;
+            return binder::Status::ok();
         }
         default: {
             LOG_ALWAYS_FATAL("Unknown service type: %d", in.getTag());
@@ -177,4 +207,4 @@
     return gUnifiedServiceManager;
 }
 
-} // namespace android
\ No newline at end of file
+} // namespace android

diff --git a/libs/binder/BackendUnifiedServiceManager.h b/libs/binder/BackendUnifiedServiceManager.h
index 8f3839f..387eb35 100644
--- a/libs/binder/BackendUnifiedServiceManager.h
+++ b/libs/binder/BackendUnifiedServiceManager.h

@@ -59,9 +59,12 @@
 
 private:
     sp<os::IServiceManager> mTheRealServiceManager;
-    void toBinderService(const os::Service& in, os::Service* _out);
+    binder::Status toBinderService(const ::std::string& name, const os::Service& in,
+                                   os::Service* _out);
 };
 
 sp<BackendUnifiedServiceManager> getBackendUnifiedServiceManager();
 
-} // namespace android
\ No newline at end of file
+android::binder::Status getInjectedAccessor(const std::string& name, android::os::Service* service);
+
+} // namespace android

diff --git a/libs/binder/IServiceManager.cpp b/libs/binder/IServiceManager.cpp
index c55dd9d..cba21b2 100644
--- a/libs/binder/IServiceManager.cpp
+++ b/libs/binder/IServiceManager.cpp

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+#include <sys/socket.h>
 #define LOG_TAG "ServiceManagerCppClient"
 
 #include <binder/IServiceManager.h>
@@ -24,14 +25,19 @@
 #include <chrono>
 #include <condition_variable>
 
+#include <FdTrigger.h>
+#include <RpcSocketAddress.h>
 #include <android-base/properties.h>
+#include <android/os/BnAccessor.h>
 #include <android/os/BnServiceCallback.h>
+#include <android/os/BnServiceManager.h>
 #include <android/os/IAccessor.h>
 #include <android/os/IServiceManager.h>
 #include <binder/IPCThreadState.h>
 #include <binder/Parcel.h>
+#include <binder/RpcSession.h>
 #include <utils/String8.h>
-
+#include <variant>
 #ifndef __ANDROID_VNDK__
 #include <binder/IPermissionController.h>
 #endif
@@ -148,8 +154,141 @@
     }
 };
 
+class AccessorProvider {
+public:
+    AccessorProvider(RpcAccessorProvider&& provider) : mProvider(provider) {}
+    sp<IBinder> provide(const String16& name) { return mProvider(name); }
+
+private:
+    AccessorProvider() = delete;
+
+    RpcAccessorProvider mProvider;
+};
+
+class AccessorProviderEntry {
+public:
+    AccessorProviderEntry(std::shared_ptr<AccessorProvider>&& provider) : mProvider(provider) {}
+    std::shared_ptr<AccessorProvider> mProvider;
+
+private:
+    AccessorProviderEntry() = delete;
+};
+
 [[clang::no_destroy]] static std::once_flag gSmOnce;
 [[clang::no_destroy]] static sp<IServiceManager> gDefaultServiceManager;
+[[clang::no_destroy]] static std::mutex gAccessorProvidersMutex;
+[[clang::no_destroy]] static std::vector<AccessorProviderEntry> gAccessorProviders;
+
+class LocalAccessor : public android::os::BnAccessor {
+public:
+    LocalAccessor(const String16& instance, RpcSocketAddressProvider&& connectionInfoProvider)
+          : mInstance(instance), mConnectionInfoProvider(connectionInfoProvider) {
+        LOG_ALWAYS_FATAL_IF(!mConnectionInfoProvider,
+                            "LocalAccessor object needs a valid connection info provider");
+    }
+
+    ~LocalAccessor() {
+        if (mOnDelete) mOnDelete();
+    }
+
+    ::android::binder::Status addConnection(::android::os::ParcelFileDescriptor* outFd) {
+        using android::os::IAccessor;
+        sockaddr_storage addrStorage;
+        std::unique_ptr<FdTrigger> trigger = FdTrigger::make();
+        RpcTransportFd fd;
+        status_t status =
+                mConnectionInfoProvider(mInstance, reinterpret_cast<sockaddr*>(&addrStorage),
+                                        sizeof(addrStorage));
+        if (status != OK) {
+            const std::string error = "The connection info provider was unable to provide "
+                                      "connection info for instance " +
+                    std::string(String8(mInstance).c_str()) +
+                    " with status: " + statusToString(status);
+            ALOGE("%s", error.c_str());
+            return Status::fromServiceSpecificError(IAccessor::ERROR_CONNECTION_INFO_NOT_FOUND,
+                                                    error.c_str());
+        }
+        if (addrStorage.ss_family == AF_VSOCK) {
+            sockaddr_vm* addr = reinterpret_cast<sockaddr_vm*>(&addrStorage);
+            status = singleSocketConnection(VsockSocketAddress(addr->svm_cid, addr->svm_port),
+                                            trigger, &fd);
+        } else if (addrStorage.ss_family == AF_UNIX) {
+            sockaddr_un* addr = reinterpret_cast<sockaddr_un*>(&addrStorage);
+            status = singleSocketConnection(UnixSocketAddress(addr->sun_path), trigger, &fd);
+        } else if (addrStorage.ss_family == AF_INET) {
+            sockaddr_in* addr = reinterpret_cast<sockaddr_in*>(&addrStorage);
+            status = singleSocketConnection(InetSocketAddress(reinterpret_cast<sockaddr*>(addr),
+                                                              sizeof(sockaddr_in),
+                                                              inet_ntoa(addr->sin_addr),
+                                                              ntohs(addr->sin_port)),
+                                            trigger, &fd);
+        } else {
+            const std::string error =
+                    "Unsupported socket family type or the ConnectionInfoProvider failed to find a "
+                    "valid address. Family type: " +
+                    std::to_string(addrStorage.ss_family);
+            ALOGE("%s", error.c_str());
+            return Status::fromServiceSpecificError(IAccessor::ERROR_UNSUPPORTED_SOCKET_FAMILY,
+                                                    error.c_str());
+        }
+        if (status != OK) {
+            const std::string error = "Failed to connect to socket for " +
+                    std::string(String8(mInstance).c_str()) +
+                    " with status: " + statusToString(status);
+            ALOGE("%s", error.c_str());
+            int err = 0;
+            if (status == -EACCES) {
+                err = IAccessor::ERROR_FAILED_TO_CONNECT_EACCES;
+            } else {
+                err = IAccessor::ERROR_FAILED_TO_CONNECT_TO_SOCKET;
+            }
+            return Status::fromServiceSpecificError(err, error.c_str());
+        }
+        *outFd = os::ParcelFileDescriptor(std::move(fd.fd));
+        return Status::ok();
+    }
+
+    ::android::binder::Status getInstanceName(String16* instance) {
+        *instance = mInstance;
+        return Status::ok();
+    }
+
+private:
+    LocalAccessor() = delete;
+    String16 mInstance;
+    RpcSocketAddressProvider mConnectionInfoProvider;
+    std::function<void()> mOnDelete;
+};
+
+android::binder::Status getInjectedAccessor(const std::string& name,
+                                            android::os::Service* service) {
+    std::vector<AccessorProviderEntry> copiedProviders;
+    {
+        std::lock_guard<std::mutex> lock(gAccessorProvidersMutex);
+        copiedProviders.insert(copiedProviders.begin(), gAccessorProviders.begin(),
+                               gAccessorProviders.end());
+    }
+
+    // Unlocked to call the providers. This requires the providers to be
+    // threadsafe and not contain any references to objects that could be
+    // deleted.
+    for (const auto& provider : copiedProviders) {
+        sp<IBinder> binder = provider.mProvider->provide(String16(name.c_str()));
+        if (binder == nullptr) continue;
+        status_t status = validateAccessor(String16(name.c_str()), binder);
+        if (status != OK) {
+            ALOGE("A provider returned a binder that is not an IAccessor for instance %s. Status: "
+                  "%s",
+                  name.c_str(), statusToString(status).c_str());
+            return android::binder::Status::fromStatusT(android::INVALID_OPERATION);
+        }
+        *service = os::Service::make<os::Service::Tag::accessor>(binder);
+        return android::binder::Status::ok();
+    }
+
+    *service = os::Service::make<os::Service::Tag::accessor>(nullptr);
+    return android::binder::Status::ok();
+}
 
 sp<IServiceManager> defaultServiceManager()
 {
@@ -172,6 +311,75 @@
     }
 }
 
+std::weak_ptr<AccessorProvider> addAccessorProvider(RpcAccessorProvider&& providerCallback) {
+    std::lock_guard<std::mutex> lock(gAccessorProvidersMutex);
+    std::shared_ptr<AccessorProvider> provider =
+            std::make_shared<AccessorProvider>(std::move(providerCallback));
+    gAccessorProviders.push_back(AccessorProviderEntry(std::move(provider)));
+
+    return provider;
+}
+
+status_t removeAccessorProvider(std::weak_ptr<AccessorProvider> wProvider) {
+    std::shared_ptr<AccessorProvider> provider = wProvider.lock();
+    if (provider == nullptr) {
+        ALOGE("The provider supplied to removeAccessorProvider has already been removed.");
+        return NAME_NOT_FOUND;
+    }
+    std::lock_guard<std::mutex> lock(gAccessorProvidersMutex);
+    size_t sizeBefore = gAccessorProviders.size();
+    gAccessorProviders.erase(std::remove_if(gAccessorProviders.begin(), gAccessorProviders.end(),
+                                            [&](AccessorProviderEntry entry) {
+                                                return entry.mProvider == provider;
+                                            }),
+                             gAccessorProviders.end());
+    if (sizeBefore == gAccessorProviders.size()) {
+        ALOGE("Failed to find an AccessorProvider for removeAccessorProvider");
+        return NAME_NOT_FOUND;
+    }
+
+    return OK;
+}
+
+status_t validateAccessor(const String16& instance, const sp<IBinder>& binder) {
+    if (binder == nullptr) {
+        ALOGE("Binder is null");
+        return BAD_VALUE;
+    }
+    sp<IAccessor> accessor = interface_cast<IAccessor>(binder);
+    if (accessor == nullptr) {
+        ALOGE("This binder for %s is not an IAccessor binder", String8(instance).c_str());
+        return BAD_TYPE;
+    }
+    String16 reportedInstance;
+    Status status = accessor->getInstanceName(&reportedInstance);
+    if (!status.isOk()) {
+        ALOGE("Failed to validate the binder being used to create a new ARpc_Accessor for %s with "
+              "status: %s",
+              String8(instance).c_str(), status.toString8().c_str());
+        return NAME_NOT_FOUND;
+    }
+    if (reportedInstance != instance) {
+        ALOGE("Instance %s doesn't match the Accessor's instance of %s", String8(instance).c_str(),
+              String8(reportedInstance).c_str());
+        return NAME_NOT_FOUND;
+    }
+    return OK;
+}
+
+sp<IBinder> createAccessor(const String16& instance,
+                           RpcSocketAddressProvider&& connectionInfoProvider) {
+    // Try to create a new accessor
+    if (!connectionInfoProvider) {
+        ALOGE("Could not find an Accessor for %s and no ConnectionInfoProvider provided to "
+              "create a new one",
+              String8(instance).c_str());
+        return nullptr;
+    }
+    sp<IBinder> binder = sp<LocalAccessor>::make(instance, std::move(connectionInfoProvider));
+    return binder;
+}
+
 #if !defined(__ANDROID_VNDK__)
 // IPermissionController is not accessible to vendors
 

diff --git a/libs/binder/Parcel.cpp b/libs/binder/Parcel.cpp
index e8fe555..4b7af45 100644
--- a/libs/binder/Parcel.cpp
+++ b/libs/binder/Parcel.cpp

@@ -1725,7 +1725,9 @@
                 }
             }
         }
-        ::munmap(ptr, len);
+        if (::munmap(ptr, len) == -1) {
+            ALOGW("munmap() failed: %s", strerror(errno));
+        }
     }
     ::close(fd);
     return status;
@@ -3332,7 +3334,9 @@
 
 void Parcel::Blob::release() {
     if (mFd != -1 && mData) {
-        ::munmap(mData, mSize);
+        if (::munmap(mData, mSize) == -1) {
+            ALOGW("munmap() failed: %s", strerror(errno));
+        }
     }
     clear();
 }

diff --git a/libs/binder/RpcSession.cpp b/libs/binder/RpcSession.cpp
index 49def82..cd21a91 100644
--- a/libs/binder/RpcSession.cpp
+++ b/libs/binder/RpcSession.cpp

@@ -589,6 +589,21 @@
 status_t RpcSession::setupOneSocketConnection(const RpcSocketAddress& addr,
                                               const std::vector<uint8_t>& sessionId,
                                               bool incoming) {
+    RpcTransportFd transportFd;
+    status_t status = singleSocketConnection(addr, mShutdownTrigger, &transportFd);
+    if (status != OK) return status;
+
+    return initAndAddConnection(std::move(transportFd), sessionId, incoming);
+}
+
+status_t singleSocketConnection(const RpcSocketAddress& addr,
+                                const std::unique_ptr<FdTrigger>& shutdownTrigger,
+                                RpcTransportFd* outFd) {
+    LOG_ALWAYS_FATAL_IF(outFd == nullptr,
+                        "There is no reason to call this function without an outFd");
+    LOG_ALWAYS_FATAL_IF(shutdownTrigger == nullptr,
+                        "FdTrigger argument is required so we don't get stuck in the connect call "
+                        "if the server process shuts down.");
     for (size_t tries = 0; tries < 5; tries++) {
         if (tries > 0) usleep(10000);
 
@@ -620,7 +635,7 @@
             if (connErrno == EAGAIN || connErrno == EINPROGRESS) {
                 // For non-blocking sockets, connect() may return EAGAIN (for unix domain socket) or
                 // EINPROGRESS (for others). Call poll() and getsockopt() to get the error.
-                status_t pollStatus = mShutdownTrigger->triggerablePoll(transportFd, POLLOUT);
+                status_t pollStatus = shutdownTrigger->triggerablePoll(transportFd, POLLOUT);
                 if (pollStatus != OK) {
                     ALOGE("Could not POLLOUT after connect() on non-blocking socket: %s",
                           statusToString(pollStatus).c_str());
@@ -654,7 +669,8 @@
         LOG_RPC_DETAIL("Socket at %s client with fd %d", addr.toString().c_str(),
                        transportFd.fd.get());
 
-        return initAndAddConnection(std::move(transportFd), sessionId, incoming);
+        *outFd = std::move(transportFd);
+        return OK;
     }
 
     ALOGE("Ran out of retries to connect to %s", addr.toString().c_str());

diff --git a/libs/binder/RpcSocketAddress.h b/libs/binder/RpcSocketAddress.h
index c7ba5d9..ee7d448 100644
--- a/libs/binder/RpcSocketAddress.h
+++ b/libs/binder/RpcSocketAddress.h

@@ -113,4 +113,11 @@
     unsigned int mPort;
 };
 
+/**
+ * Connects to a single socket and produces a RpcTransportFd.
+ */
+status_t singleSocketConnection(const RpcSocketAddress& address,
+                                const std::unique_ptr<FdTrigger>& shutdownTrigger,
+                                RpcTransportFd* outFd);
+
 } // namespace android

diff --git a/libs/binder/aidl/android/os/IAccessor.aidl b/libs/binder/aidl/android/os/IAccessor.aidl
index a3134a3..c06e05c 100644
--- a/libs/binder/aidl/android/os/IAccessor.aidl
+++ b/libs/binder/aidl/android/os/IAccessor.aidl

@@ -25,15 +25,56 @@
  */
 interface IAccessor {
     /**
+     * The connection info was not available for this service.
+     * This happens when the user-supplied callback fails to produce
+     * valid connection info.
+     * Depending on the implementation of the callback, it might be helpful
+     * to retry.
+     */
+    const int ERROR_CONNECTION_INFO_NOT_FOUND = 0;
+    /**
+     * Failed to create the socket. Often happens when the process trying to create
+     * the socket lacks the permissions to do so.
+     * This may be a temporary issue, so retrying the operation is OK.
+     */
+    const int ERROR_FAILED_TO_CREATE_SOCKET = 1;
+    /**
+     * Failed to connect to the socket. This can happen for many reasons, so be sure
+     * log the error message and check it.
+     * This may be a temporary issue, so retrying the operation is OK.
+     */
+    const int ERROR_FAILED_TO_CONNECT_TO_SOCKET = 2;
+    /**
+     * Failed to connect to the socket with EACCES because this process does not
+     * have perimssions to connect.
+     * There is no need to retry the connection as this access will not be granted
+     * upon retry.
+     */
+    const int ERROR_FAILED_TO_CONNECT_EACCES = 3;
+    /**
+     * Unsupported socket family type returned.
+     * There is no need to retry the connection as this socket family is not
+     * supported.
+     */
+    const int ERROR_UNSUPPORTED_SOCKET_FAMILY = 4;
+
+    /**
      * Adds a connection to the RPC server of the service managed by the IAccessor.
      *
      * This method can be called multiple times to establish multiple distinct
      * connections to the same RPC server.
      *
+     * @throws ServiceSpecificError with message and one of the IAccessor::ERROR_ values.
+     *
      * @return A file descriptor connected to the RPC session of the service managed
      *         by IAccessor.
      */
     ParcelFileDescriptor addConnection();
 
-    // TODO(b/350941051): Add API for debugging.
+    /**
+     * Get the instance name for the service this accessor is responsible for.
+     *
+     * This is used to verify the proxy binder is associated with the expected instance name.
+     */
+    String getInstanceName();
 }

diff --git a/libs/binder/include/binder/IServiceManager.h b/libs/binder/include/binder/IServiceManager.h
index 5fb7307..879f319 100644
--- a/libs/binder/include/binder/IServiceManager.h
+++ b/libs/binder/include/binder/IServiceManager.h

@@ -17,14 +17,16 @@
 #pragma once
 #include <binder/Common.h>
 #include <binder/IInterface.h>
-#include <utils/Vector.h>
+// Trusty has its own definition of socket APIs from trusty_ipc.h
+#ifndef __TRUSTY__
+#include <sys/socket.h>
+#endif // __TRUSTY__
 #include <utils/String16.h>
+#include <utils/Vector.h>
 #include <optional>
 
 namespace android {
 
-// ----------------------------------------------------------------------
-
 /**
  * Service manager for C++ services.
  *
@@ -216,6 +218,64 @@
 LIBBINDER_EXPORTED bool checkPermission(const String16& permission, pid_t pid, uid_t uid,
                                         bool logPermissionFailure = true);
 
+// ----------------------------------------------------------------------
+// Trusty's definition of the socket APIs does not include sockaddr types
+#ifndef __TRUSTY__
+typedef std::function<status_t(const String16& name, sockaddr* outAddr, socklen_t addrSize)>
+        RpcSocketAddressProvider;
+
+typedef std::function<sp<IBinder>(const String16& name)> RpcAccessorProvider;
+
+class AccessorProvider;
+
+/**
+ * Register an accessor provider for the service manager APIs.
+ *
+ * \param provider callback that generates Accessors.
+ *
+ * \return A pointer used as a recept for the successful addition of the
+ *         AccessorProvider. This is needed to unregister it later.
+ */
+[[nodiscard]] LIBBINDER_EXPORTED std::weak_ptr<AccessorProvider> addAccessorProvider(
+        RpcAccessorProvider&& providerCallback);
+
+/**
+ * Remove an accessor provider using the pointer provided by addAccessorProvider
+ * along with the cookie pointer that was used.
+ *
+ * \param provider cookie that was returned by addAccessorProvider to keep track
+ *        of this instance.
+ */
+[[nodiscard]] LIBBINDER_EXPORTED status_t
+removeAccessorProvider(std::weak_ptr<AccessorProvider> provider);
+
+/**
+ * Create an Accessor associated with a service that can create a socket connection based
+ * on the connection info from the supplied RpcSocketAddressProvider.
+ *
+ * \param instance name of the service that this Accessor is associated with
+ * \param connectionInfoProvider a callback that returns connection info for
+ *        connecting to the service.
+ * \return the binder of the IAccessor implementation from libbinder
+ */
+LIBBINDER_EXPORTED sp<IBinder> createAccessor(const String16& instance,
+                                              RpcSocketAddressProvider&& connectionInfoProvider);
+
+/**
+ * Check to make sure this binder is the expected binder that is an IAccessor
+ * associated with a specific instance.
+ *
+ * This helper function exists to avoid adding the IAccessor type to
+ * libbinder_ndk.
+ *
+ * \param instance name of the service that this Accessor should be associated with
+ * \param binder to validate
+ *
+ * \return OK if the binder is an IAccessor for `instance`
+ */
+LIBBINDER_EXPORTED status_t validateAccessor(const String16& instance, const sp<IBinder>& binder);
+#endif // __TRUSTY__
+
 #ifndef __ANDROID__
 // Create an IServiceManager that delegates the service manager on the device via adb.
 // This is can be set as the default service manager at program start, so that

diff --git a/libs/binder/ndk/Android.bp b/libs/binder/ndk/Android.bp
index 4e02ace..5f45cb2 100644
--- a/libs/binder/ndk/Android.bp
+++ b/libs/binder/ndk/Android.bp

@@ -230,12 +230,24 @@
     },
     apex_available: [
         "//apex_available:platform",
+        "//apex_available:anyapex",
         "com.android.media",
         "com.android.media.swcodec",
     ],
     min_sdk_version: "29",
 }
 
+// TODO: if you try to export libbinder_headers_platform_shared from libbinder_ndk.ndk, it will
+// not select the NDK variant of libbinder_headers_platform_shared and instead, it will error
+// that the NDK can't depend on glibc C++.
+cc_library_headers {
+    name: "libbinder_headers_platform_shared_ndk",
+    export_include_dirs: ["include_cpp"],
+    sdk_version: "29",
+    min_sdk_version: "29",
+    visibility: [":__subpackages__"],
+}
+
 ndk_headers {
     name: "libbinder_ndk_headers",
     from: "include_ndk/android",
@@ -246,26 +258,14 @@
     license: "NOTICE",
 }
 
-// TODO(b/160624671): package with the aidl compiler
-ndk_headers {
-    name: "libbinder_ndk_helper_headers",
-    from: "include_cpp/android",
-    to: "android",
-    srcs: [
-        "include_cpp/android/*.h",
-    ],
-    license: "NOTICE",
-    // These are intentionally not C. It's a mistake that they're in the NDK.
-    // See the bug above.
-    skip_verification: true,
-}
+// include_cpp are packaged in development/build/sdk.atree with the AIDL compiler
 
 ndk_library {
     name: "libbinder_ndk",
     symbol_file: "libbinder_ndk.map.txt",
     first_version: "29",
     export_header_libs: [
-        "libbinder_ndk_headers",
-        "libbinder_ndk_helper_headers",
+        // used to be part of the NDK, platform things depend on it
+        "libbinder_headers_platform_shared_ndk",
     ],
 }

diff --git a/libs/binder/rust/src/proxy.rs b/libs/binder/rust/src/proxy.rs
index 340014a..04f1517 100644
--- a/libs/binder/rust/src/proxy.rs
+++ b/libs/binder/rust/src/proxy.rs

@@ -195,7 +195,7 @@
 
 impl PartialEq for SpIBinder {
     fn eq(&self, other: &Self) -> bool {
-        ptr::eq(self.0.as_ptr(), other.0.as_ptr())
+        self.cmp(other) == Ordering::Equal
     }
 }
 

diff --git a/libs/binder/tests/Android.bp b/libs/binder/tests/Android.bp
index 9578713..1e463a4 100644
--- a/libs/binder/tests/Android.bp
+++ b/libs/binder/tests/Android.bp

@@ -888,6 +888,7 @@
             enabled: false,
         },
     },
+    corpus: ["corpus/*"],
     fuzz_config: {
         cc: [
             "smoreland@google.com",

diff --git a/libs/binder/tests/binderRpcTest.cpp b/libs/binder/tests/binderRpcTest.cpp
index 3038de9..fbca35e 100644
--- a/libs/binder/tests/binderRpcTest.cpp
+++ b/libs/binder/tests/binderRpcTest.cpp

@@ -365,26 +365,57 @@
         session->setMaxOutgoingConnections(options.numOutgoingConnections);
         session->setFileDescriptorTransportMode(options.clientFileDescriptorTransportMode);
 
+        sockaddr_storage addr{};
+        socklen_t addrLen = 0;
+
         switch (socketType) {
-            case SocketType::PRECONNECTED:
+            case SocketType::PRECONNECTED: {
+                sockaddr_un addr_un{};
+                addr_un.sun_family = AF_UNIX;
+                strcpy(addr_un.sun_path, serverConfig.addr.c_str());
+                addr = *reinterpret_cast<sockaddr_storage*>(&addr_un);
+                addrLen = sizeof(sockaddr_un);
+
                 status = session->setupPreconnectedClient({}, [=]() {
                     return connectTo(UnixSocketAddress(serverConfig.addr.c_str()));
                 });
-                break;
+            } break;
             case SocketType::UNIX_RAW:
-            case SocketType::UNIX:
+            case SocketType::UNIX: {
+                sockaddr_un addr_un{};
+                addr_un.sun_family = AF_UNIX;
+                strcpy(addr_un.sun_path, serverConfig.addr.c_str());
+                addr = *reinterpret_cast<sockaddr_storage*>(&addr_un);
+                addrLen = sizeof(sockaddr_un);
+
                 status = session->setupUnixDomainClient(serverConfig.addr.c_str());
-                break;
+            } break;
             case SocketType::UNIX_BOOTSTRAP:
                 status = session->setupUnixDomainSocketBootstrapClient(
                         unique_fd(dup(bootstrapClientFd.get())));
                 break;
-            case SocketType::VSOCK:
+            case SocketType::VSOCK: {
+                sockaddr_vm addr_vm{
+                        .svm_family = AF_VSOCK,
+                        .svm_port = static_cast<unsigned int>(serverInfo.port),
+                        .svm_cid = VMADDR_CID_LOCAL,
+                };
+                addr = *reinterpret_cast<sockaddr_storage*>(&addr_vm);
+                addrLen = sizeof(sockaddr_vm);
+
                 status = session->setupVsockClient(VMADDR_CID_LOCAL, serverInfo.port);
-                break;
-            case SocketType::INET:
-                status = session->setupInetClient("127.0.0.1", serverInfo.port);
-                break;
+            } break;
+            case SocketType::INET: {
+                const std::string ip_addr = "127.0.0.1";
+                sockaddr_in addr_in{};
+                addr_in.sin_family = AF_INET;
+                addr_in.sin_port = htons(serverInfo.port);
+                inet_aton(ip_addr.c_str(), &addr_in.sin_addr);
+                addr = *reinterpret_cast<sockaddr_storage*>(&addr_in);
+                addrLen = sizeof(sockaddr_in);
+
+                status = session->setupInetClient(ip_addr.c_str(), serverInfo.port);
+            } break;
             case SocketType::TIPC:
                 status = session->setupPreconnectedClient({}, [=]() {
 #ifdef BINDER_RPC_TO_TRUSTY_TEST
@@ -413,7 +444,7 @@
             break;
         }
         LOG_ALWAYS_FATAL_IF(status != OK, "Could not connect: %s", statusToString(status).c_str());
-        ret->sessions.push_back({session, session->getRootObject()});
+        ret->sessions.push_back({session, session->getRootObject(), addr, addrLen});
     }
     return ret;
 }
@@ -1127,6 +1158,139 @@
     ASSERT_EQ(beforeFds, countFds()) << (system("ls -l /proc/self/fd/"), "fd leak?");
 }
 
+// TODO need to add IServiceManager.cpp/.h to libbinder_no_kernel
+#ifdef BINDER_WITH_KERNEL_IPC
+
+class BinderRpcAccessor : public BinderRpc {
+    void SetUp() override {
+        if (serverSingleThreaded()) {
+            // This blocks on android::FdTrigger::triggerablePoll when attempting to set
+            // up the client RpcSession
+            GTEST_SKIP() << "Accessors are not supported for single threaded libbinder";
+        }
+        if (rpcSecurity() == RpcSecurity::TLS) {
+            GTEST_SKIP() << "Accessors are not supported with TLS";
+            // ... for now
+        }
+
+        if (socketType() == SocketType::UNIX_BOOTSTRAP) {
+            GTEST_SKIP() << "Accessors do not support UNIX_BOOTSTRAP because no connection "
+                            "information is known";
+        }
+        if (socketType() == SocketType::TIPC) {
+            GTEST_SKIP() << "Accessors do not support TIPC because the socket transport is not "
+                            "known in libbinder";
+        }
+        BinderRpc::SetUp();
+    }
+};
+
+inline void waitForExtraSessionCleanup(const BinderRpcTestProcessSession& proc) {
+    // Need to give the server some time to delete its RpcSession after our last
+    // reference is dropped, closing the connection. Check for up to 1 second,
+    // every 10 ms.
+    for (size_t i = 0; i < 100; i++) {
+        std::vector<int32_t> remoteCounts;
+        EXPECT_OK(proc.rootIface->countBinders(&remoteCounts));
+        // We exect the original binder to still be alive, we just want to wait
+        // for this extra session to be cleaned up.
+        if (remoteCounts.size() == proc.proc->sessions.size()) break;
+        usleep(10000);
+    }
+}
+
+TEST_P(BinderRpcAccessor, InjectAndGetServiceHappyPath) {
+    constexpr size_t kNumThreads = 10;
+    const String16 kInstanceName("super.cool.service/better_than_default");
+
+    auto proc = createRpcTestSocketServerProcess({.numThreads = kNumThreads});
+    EXPECT_EQ(OK, proc.rootBinder->pingBinder());
+
+    auto receipt = addAccessorProvider([&](const String16& name) -> sp<IBinder> {
+        return createAccessor(name,
+                              [&](const String16& name, sockaddr* outAddr,
+                                  socklen_t addrSize) -> status_t {
+                                  if (outAddr == nullptr ||
+                                      addrSize < proc.proc->sessions[0].addrLen) {
+                                      return BAD_VALUE;
+                                  }
+                                  if (name == kInstanceName) {
+                                      if (proc.proc->sessions[0].addr.ss_family == AF_UNIX) {
+                                          sockaddr_un* un = reinterpret_cast<sockaddr_un*>(
+                                                  &proc.proc->sessions[0].addr);
+                                          ALOGE("inside callback: %s", un->sun_path);
+                                      }
+                                      std::memcpy(outAddr, &proc.proc->sessions[0].addr,
+                                                  proc.proc->sessions[0].addrLen);
+                                      return OK;
+                                  }
+                                  return NAME_NOT_FOUND;
+                              });
+    });
+
+    EXPECT_FALSE(receipt.expired());
+
+    sp<IBinder> binder = defaultServiceManager()->checkService(kInstanceName);
+    sp<IBinderRpcTest> service = checked_interface_cast<IBinderRpcTest>(binder);
+    EXPECT_NE(service, nullptr);
+
+    sp<IBinder> out;
+    EXPECT_OK(service->repeatBinder(binder, &out));
+    EXPECT_EQ(binder, out);
+
+    out.clear();
+    binder.clear();
+    service.clear();
+
+    status_t status = removeAccessorProvider(receipt);
+    EXPECT_EQ(status, OK);
+
+    waitForExtraSessionCleanup(proc);
+}
+
+TEST_P(BinderRpcAccessor, InjectNoAccessorProvided) {
+    const String16 kInstanceName("doesnt_matter_nothing_checks");
+
+    bool isProviderDeleted = false;
+
+    auto receipt = addAccessorProvider([&](const String16&) -> sp<IBinder> { return nullptr; });
+    EXPECT_FALSE(receipt.expired());
+
+    sp<IBinder> binder = defaultServiceManager()->checkService(kInstanceName);
+    EXPECT_EQ(binder, nullptr);
+
+    status_t status = removeAccessorProvider(receipt);
+    EXPECT_EQ(status, OK);
+}
+
+TEST_P(BinderRpcAccessor, InjectNoSockaddrProvided) {
+    constexpr size_t kNumThreads = 10;
+    const String16 kInstanceName("super.cool.service/better_than_default");
+
+    auto proc = createRpcTestSocketServerProcess({.numThreads = kNumThreads});
+    EXPECT_EQ(OK, proc.rootBinder->pingBinder());
+
+    bool isProviderDeleted = false;
+    bool isAccessorDeleted = false;
+
+    auto receipt = addAccessorProvider([&](const String16& name) -> sp<IBinder> {
+        return createAccessor(name, [&](const String16&, sockaddr*, socklen_t) -> status_t {
+            // don't fill in outAddr
+            return NAME_NOT_FOUND;
+        });
+    });
+
+    EXPECT_FALSE(receipt.expired());
+
+    sp<IBinder> binder = defaultServiceManager()->checkService(kInstanceName);
+    EXPECT_EQ(binder, nullptr);
+
+    status_t status = removeAccessorProvider(receipt);
+    EXPECT_EQ(status, OK);
+}
+
+#endif // BINDER_WITH_KERNEL_IPC
+
 #ifdef BINDER_RPC_TO_TRUSTY_TEST
 
 static std::vector<BinderRpc::ParamType> getTrustyBinderRpcParams() {
@@ -1315,6 +1479,11 @@
 INSTANTIATE_TEST_SUITE_P(PerSocket, BinderRpc, ::testing::ValuesIn(getBinderRpcParams()),
                          BinderRpc::PrintParamInfo);
 
+#ifdef BINDER_WITH_KERNEL_IPC
+INSTANTIATE_TEST_SUITE_P(PerSocket, BinderRpcAccessor, ::testing::ValuesIn(getBinderRpcParams()),
+                         BinderRpc::PrintParamInfo);
+#endif // BINDER_WITH_KERNEL_IPC
+
 class BinderRpcServerRootObject
       : public ::testing::TestWithParam<std::tuple<bool, bool, RpcSecurity>> {};
 

diff --git a/libs/binder/tests/binderRpcTestFixture.h b/libs/binder/tests/binderRpcTestFixture.h
index 2c9646b..c8a8acc 100644
--- a/libs/binder/tests/binderRpcTestFixture.h
+++ b/libs/binder/tests/binderRpcTestFixture.h

@@ -35,6 +35,12 @@
     struct SessionInfo {
         sp<RpcSession> session;
         sp<IBinder> root;
+// Trusty defines its own socket APIs in trusty_ipc.h but doesn't include
+// sockaddr types.
+#ifndef __TRUSTY__
+        sockaddr_storage addr;
+        socklen_t addrLen;
+#endif
     };
 
     // client session objects associated with other process

diff --git a/libs/gralloc/types/fuzzer/Android.bp b/libs/gralloc/types/fuzzer/Android.bp
index 8337182..d9cdb59 100644
--- a/libs/gralloc/types/fuzzer/Android.bp
+++ b/libs/gralloc/types/fuzzer/Android.bp

@@ -28,14 +28,10 @@
     ],
     static_libs: [
         "libbase",
-        "libcgrouprc",
-        "libcgrouprc_format",
         "libcutils",
         "libgralloctypes",
         "libhidlbase",
         "liblog",
-        "libprocessgroup",
-        "libjsoncpp",
         "libutils",
     ],
 

diff --git a/libs/graphicsenv/GraphicsEnv.cpp b/libs/graphicsenv/GraphicsEnv.cpp
index 4c3f4a6..d1a5663 100644
--- a/libs/graphicsenv/GraphicsEnv.cpp
+++ b/libs/graphicsenv/GraphicsEnv.cpp

@@ -401,18 +401,10 @@
     switch (driver) {
         case GpuStatsInfo::Driver::GL:
         case GpuStatsInfo::Driver::GL_UPDATED:
-        case GpuStatsInfo::Driver::ANGLE: {
-            if (mGpuStats.glDriverToLoad == GpuStatsInfo::Driver::NONE ||
-                mGpuStats.glDriverToLoad == GpuStatsInfo::Driver::GL) {
-                mGpuStats.glDriverToLoad = driver;
-                break;
-            }
-
-            if (mGpuStats.glDriverFallback == GpuStatsInfo::Driver::NONE) {
-                mGpuStats.glDriverFallback = driver;
-            }
+        case GpuStatsInfo::Driver::ANGLE:
+            mGpuStats.glDriverToLoad = driver;
             break;
-        }
+
         case GpuStatsInfo::Driver::VULKAN:
         case GpuStatsInfo::Driver::VULKAN_UPDATED: {
             if (mGpuStats.vkDriverToLoad == GpuStatsInfo::Driver::NONE ||
@@ -561,8 +553,7 @@
     bool isIntendedDriverLoaded = false;
     if (api == GpuStatsInfo::Api::API_GL) {
         driver = mGpuStats.glDriverToLoad;
-        isIntendedDriverLoaded =
-                isDriverLoaded && (mGpuStats.glDriverFallback == GpuStatsInfo::Driver::NONE);
+        isIntendedDriverLoaded = isDriverLoaded;
     } else {
         driver = mGpuStats.vkDriverToLoad;
         isIntendedDriverLoaded =

diff --git a/libs/graphicsenv/OWNERS b/libs/graphicsenv/OWNERS
index 1db8cbe..4aa8fff 100644
--- a/libs/graphicsenv/OWNERS
+++ b/libs/graphicsenv/OWNERS

@@ -1,4 +1,11 @@
 chrisforbes@google.com
-cnorthrop@google.com
 ianelliott@google.com
-lpy@google.com
+
+abdolrashidi@google.com
+cclao@google.com
+cnorthrop@google.com
+hibrian@google.com
+mathias@google.com
+romanl@google.com
+solti@google.com
+yuxinhu@google.com

diff --git a/libs/graphicsenv/include/graphicsenv/GpuStatsInfo.h b/libs/graphicsenv/include/graphicsenv/GpuStatsInfo.h
index 7f45581..72f29c6 100644
--- a/libs/graphicsenv/include/graphicsenv/GpuStatsInfo.h
+++ b/libs/graphicsenv/include/graphicsenv/GpuStatsInfo.h

@@ -141,7 +141,6 @@
     std::string appPackageName = "";
     int32_t vulkanVersion = 0;
     Driver glDriverToLoad = Driver::NONE;
-    Driver glDriverFallback = Driver::NONE;
     Driver vkDriverToLoad = Driver::NONE;
     Driver vkDriverFallback = Driver::NONE;
     bool glDriverToSend = false;

diff --git a/libs/gui/BLASTBufferQueue.cpp b/libs/gui/BLASTBufferQueue.cpp
index f8e3fd0..3c1971f 100644
--- a/libs/gui/BLASTBufferQueue.cpp
+++ b/libs/gui/BLASTBufferQueue.cpp

@@ -22,11 +22,14 @@
 
 #include <com_android_graphics_libgui_flags.h>
 #include <cutils/atomic.h>
+#include <ftl/fake_guard.h>
 #include <gui/BLASTBufferQueue.h>
 #include <gui/BufferItemConsumer.h>
 #include <gui/BufferQueueConsumer.h>
 #include <gui/BufferQueueCore.h>
 #include <gui/BufferQueueProducer.h>
+#include <sys/epoll.h>
+#include <sys/eventfd.h>
 
 #include <gui/FrameRateUtils.h>
 #include <gui/GLConsumer.h>
@@ -74,6 +77,12 @@
     std::unique_lock _lock{mutex};        \
     base::ScopedLockAssertion assumeLocked(mutex);
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
+static ReleaseBufferCallback EMPTY_RELEASE_CALLBACK =
+        [](const ReleaseCallbackId&, const sp<Fence>& /*releaseFence*/,
+           std::optional<uint32_t> /*currentMaxAcquiredBufferCount*/) {};
+#endif
+
 void BLASTBufferItemConsumer::onDisconnect() {
     Mutex::Autolock lock(mMutex);
     mPreviouslyConnected = mCurrentlyConnected;
@@ -215,6 +224,12 @@
             },
             this);
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
+    std::unique_ptr<gui::BufferReleaseChannel::ConsumerEndpoint> bufferReleaseConsumer;
+    gui::BufferReleaseChannel::open(mName, bufferReleaseConsumer, mBufferReleaseProducer);
+    mBufferReleaseReader = std::make_shared<BufferReleaseReader>(std::move(bufferReleaseConsumer));
+#endif
+
     BQA_LOGV("BLASTBufferQueue created");
 }
 
@@ -244,6 +259,9 @@
 void BLASTBufferQueue::onFirstRef() {
     // safe default, most producers are expected to override this
     mProducer->setMaxDequeuedBufferCount(2);
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
+    mBufferReleaseThread.start(sp<BLASTBufferQueue>::fromExisting(this));
+#endif
 }
 
 void BLASTBufferQueue::update(const sp<SurfaceControl>& surface, uint32_t width, uint32_t height,
@@ -269,6 +287,9 @@
     if (surfaceControlChanged) {
         t.setFlags(mSurfaceControl, layer_state_t::eEnableBackpressure,
                    layer_state_t::eEnableBackpressure);
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
+        t.setBufferReleaseChannel(mSurfaceControl, mBufferReleaseProducer);
+#endif
         applyTransaction = true;
     }
     mTransformHint = mSurfaceControl->getTransformHint();
@@ -386,6 +407,7 @@
                                                     stat.latchTime,
                                                     stat.frameEventStats.dequeueReadyTime);
                 }
+#if !COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
                 auto currFrameNumber = stat.frameEventStats.frameNumber;
                 std::vector<ReleaseCallbackId> staleReleases;
                 for (const auto& [key, value]: mSubmitted) {
@@ -401,6 +423,7 @@
                                                 stat.currentMaxAcquiredBufferCount,
                                                 true /* fakeRelease */);
                 }
+#endif
             } else {
                 BQA_LOGE("Failed to find matching SurfaceControl in transactionCallback");
             }
@@ -411,6 +434,15 @@
     }
 }
 
+void BLASTBufferQueue::flushShadowQueue() {
+    BQA_LOGV("flushShadowQueue");
+    int numFramesToFlush = mNumFrameAvailable;
+    while (numFramesToFlush > 0) {
+        acquireNextBufferLocked(std::nullopt);
+        numFramesToFlush--;
+    }
+}
+
 // Unlike transactionCallbackThunk the release buffer callback does not extend the life of the
 // BBQ. This is because if the BBQ is destroyed, then the buffers will be released by the client.
 // So we pass in a weak pointer to the BBQ and if it still alive, then we release the buffer.
@@ -428,15 +460,6 @@
     };
 }
 
-void BLASTBufferQueue::flushShadowQueue() {
-    BQA_LOGV("flushShadowQueue");
-    int numFramesToFlush = mNumFrameAvailable;
-    while (numFramesToFlush > 0) {
-        acquireNextBufferLocked(std::nullopt);
-        numFramesToFlush--;
-    }
-}
-
 void BLASTBufferQueue::releaseBufferCallback(
         const ReleaseCallbackId& id, const sp<Fence>& releaseFence,
         std::optional<uint32_t> currentMaxAcquiredBufferCount) {
@@ -504,13 +527,7 @@
                  callbackId.to_string().c_str());
         return;
     }
-#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
-    if (!it->second.disconnectedAfterAcquired) {
-        mNumAcquired--;
-    }
-#else
     mNumAcquired--;
-#endif
     BBQ_TRACE("frame=%" PRIu64, callbackId.framenumber);
     BQA_LOGV("released %s", callbackId.to_string().c_str());
     mBufferItemConsumer->releaseBuffer(it->second, releaseFence);
@@ -561,7 +578,7 @@
         applyTransaction = false;
     }
 
-    BLASTBufferItem bufferItem;
+    BufferItem bufferItem;
 
     status_t status =
             mBufferItemConsumer->acquireBuffer(&bufferItem, 0 /* expectedPresent */, false);
@@ -617,7 +634,12 @@
                            bufferItem.mGraphicBuffer->getHeight(), bufferItem.mTransform,
                            bufferItem.mScalingMode, crop);
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
+    ReleaseBufferCallback releaseBufferCallback =
+            applyTransaction ? EMPTY_RELEASE_CALLBACK : makeReleaseBufferCallbackThunk();
+#else
     auto releaseBufferCallback = makeReleaseBufferCallbackThunk();
+#endif
     sp<Fence> fence = bufferItem.mFence ? new Fence(bufferItem.mFence->dup()) : Fence::NO_FENCE;
 
     nsecs_t dequeueTime = -1;
@@ -767,9 +789,6 @@
         }
 
         // add to shadow queue
-#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
-        mNumDequeued--;
-#endif
         mNumFrameAvailable++;
         if (waitForTransactionCallback && mNumFrameAvailable >= 2) {
             acquireAndReleaseBuffer();
@@ -824,17 +843,8 @@
 };
 
 void BLASTBufferQueue::onFrameCancelled(const uint64_t bufferId) {
-    {
-        std::lock_guard _lock{mTimestampMutex};
-        mDequeueTimestamps.erase(bufferId);
-    }
-
-#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
-    {
-        std::lock_guard lock{mMutex};
-        mNumDequeued--;
-    }
-#endif
+    std::lock_guard _lock{mTimestampMutex};
+    mDequeueTimestamps.erase(bufferId);
 }
 
 bool BLASTBufferQueue::syncNextTransaction(
@@ -1134,116 +1144,6 @@
                                             producerControlledByApp, output);
     }
 
-#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
-    status_t disconnect(int api, DisconnectMode mode) override {
-        sp<BLASTBufferQueue> bbq = mBLASTBufferQueue.promote();
-        if (!bbq) {
-            return BufferQueueProducer::disconnect(api, mode);
-        }
-
-        std::lock_guard lock{bbq->mMutex};
-        if (status_t status = BufferQueueProducer::disconnect(api, mode); status != OK) {
-            return status;
-        }
-
-        // We need to reset dequeued and acquired counts because BufferQueueProducer::disconnect
-        // calls BufferQueueCore::freeAllBuffersLocked which frees all dequeued and acquired
-        // buffers. We don't reset mNumFrameAvailable because these buffers are still available
-        // in BufferItemConsumer.
-        bbq->mNumDequeued = 0;
-        bbq->mNumAcquired = 0;
-        // SurfaceFlinger sends release callbacks for buffers that have been acquired after a
-        // disconnect. We set disconnectedAfterAcquired to true so that we can ignore any stale
-        // releases that come in after the producer is disconnected. Otherwise, releaseBuffer will
-        // decrement mNumAcquired for a buffer that was acquired before we reset mNumAcquired to
-        // zero.
-        for (auto& [releaseId, bufferItem] : bbq->mSubmitted) {
-            bufferItem.disconnectedAfterAcquired = true;
-        }
-
-        return OK;
-    }
-
-    status_t setAsyncMode(bool asyncMode) override {
-        if (status_t status = BufferQueueProducer::setAsyncMode(asyncMode); status != OK) {
-            return status;
-        }
-
-        sp<BLASTBufferQueue> bbq = mBLASTBufferQueue.promote();
-        if (!bbq) {
-            return OK;
-        }
-
-        {
-            std::lock_guard lock{bbq->mMutex};
-            bbq->mAsyncMode = asyncMode;
-        }
-
-        return OK;
-    }
-
-    status_t setSharedBufferMode(bool sharedBufferMode) override {
-        if (status_t status = BufferQueueProducer::setSharedBufferMode(sharedBufferMode);
-            status != OK) {
-            return status;
-        }
-
-        sp<BLASTBufferQueue> bbq = mBLASTBufferQueue.promote();
-        if (!bbq) {
-            return OK;
-        }
-
-        {
-            std::lock_guard lock{bbq->mMutex};
-            bbq->mSharedBufferMode = sharedBufferMode;
-        }
-
-        return OK;
-    }
-
-    status_t detachBuffer(int slot) override {
-        if (status_t status = BufferQueueProducer::detachBuffer(slot); status != OK) {
-            return status;
-        }
-
-        sp<BLASTBufferQueue> bbq = mBLASTBufferQueue.promote();
-        if (!bbq) {
-            return OK;
-        }
-
-        {
-            std::lock_guard lock{bbq->mMutex};
-            bbq->mNumDequeued--;
-        }
-
-        return OK;
-    }
-
-    status_t dequeueBuffer(int* outSlot, sp<Fence>* outFence, uint32_t width, uint32_t height,
-                           PixelFormat format, uint64_t usage, uint64_t* outBufferAge,
-                           FrameEventHistoryDelta* outTimestamps) override {
-        sp<BLASTBufferQueue> bbq = mBLASTBufferQueue.promote();
-        if (!bbq) {
-            return BufferQueueProducer::dequeueBuffer(outSlot, outFence, width, height, format,
-                                                      usage, outBufferAge, outTimestamps);
-        }
-
-        {
-            std::lock_guard lock{bbq->mMutex};
-            bbq->mNumDequeued++;
-        }
-
-        status_t status =
-                BufferQueueProducer::dequeueBuffer(outSlot, outFence, width, height, format, usage,
-                                                   outBufferAge, outTimestamps);
-        if (status < 0) {
-            std::lock_guard lock{bbq->mMutex};
-            bbq->mNumDequeued--;
-        }
-        return status;
-    }
-#endif
-
     // We want to resize the frame history when changing the size of the buffer queue
     status_t setMaxDequeuedBufferCount(int maxDequeuedBufferCount) override {
         int maxBufferCount;
@@ -1266,13 +1166,6 @@
             bbq->resizeFrameEventHistory(newFrameHistorySize);
         }
 
-#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
-        {
-            std::lock_guard lock{bbq->mMutex};
-            bbq->mMaxDequeuedBuffers = maxDequeuedBufferCount;
-        }
-#endif
-
         return OK;
     }
 
@@ -1359,7 +1252,120 @@
 void BLASTBufferQueue::setTransactionHangCallback(
         std::function<void(const std::string&)> callback) {
     std::lock_guard _lock{mMutex};
-    mTransactionHangCallback = callback;
+    mTransactionHangCallback = std::move(callback);
 }
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
+
+BLASTBufferQueue::BufferReleaseReader::BufferReleaseReader(
+        std::unique_ptr<gui::BufferReleaseChannel::ConsumerEndpoint> endpoint)
+      : mEndpoint{std::move(endpoint)} {
+    mEpollFd = android::base::unique_fd{epoll_create1(0)};
+    LOG_ALWAYS_FATAL_IF(!mEpollFd.ok(),
+                        "Failed to create buffer release epoll file descriptor. errno=%d "
+                        "message='%s'",
+                        errno, strerror(errno));
+
+    epoll_event registerEndpointFd{};
+    registerEndpointFd.events = EPOLLIN;
+    registerEndpointFd.data.fd = mEndpoint->getFd();
+    status_t status =
+            epoll_ctl(mEpollFd.get(), EPOLL_CTL_ADD, mEndpoint->getFd(), &registerEndpointFd);
+    LOG_ALWAYS_FATAL_IF(status == -1,
+                        "Failed to register buffer release consumer file descriptor with epoll. "
+                        "errno=%d message='%s'",
+                        errno, strerror(errno));
+
+    mEventFd = android::base::unique_fd(eventfd(0, EFD_CLOEXEC | EFD_NONBLOCK));
+    LOG_ALWAYS_FATAL_IF(!mEventFd.ok(),
+                        "Failed to create buffer release event file descriptor. errno=%d "
+                        "message='%s'",
+                        errno, strerror(errno));
+
+    epoll_event registerEventFd{};
+    registerEventFd.events = EPOLLIN;
+    registerEventFd.data.fd = mEventFd.get();
+    status = epoll_ctl(mEpollFd.get(), EPOLL_CTL_ADD, mEventFd.get(), &registerEventFd);
+    LOG_ALWAYS_FATAL_IF(status == -1,
+                        "Failed to register buffer release event file descriptor with epoll. "
+                        "errno=%d message='%s'",
+                        errno, strerror(errno));
+}
+
+BLASTBufferQueue::BufferReleaseReader& BLASTBufferQueue::BufferReleaseReader::operator=(
+        BufferReleaseReader&& other) {
+    if (this != &other) {
+        ftl::FakeGuard guard{mMutex};
+        ftl::FakeGuard otherGuard{other.mMutex};
+        mEndpoint = std::move(other.mEndpoint);
+        mEpollFd = std::move(other.mEpollFd);
+        mEventFd = std::move(other.mEventFd);
+    }
+    return *this;
+}
+
+status_t BLASTBufferQueue::BufferReleaseReader::readBlocking(ReleaseCallbackId& outId,
+                                                             sp<Fence>& outFence,
+                                                             uint32_t& outMaxAcquiredBufferCount) {
+    epoll_event event{};
+    while (true) {
+        int eventCount = epoll_wait(mEpollFd.get(), &event, 1 /* maxevents */, -1 /* timeout */);
+        if (eventCount == 1) {
+            break;
+        }
+        if (eventCount == -1 && errno != EINTR) {
+            ALOGE("epoll_wait error while waiting for buffer release. errno=%d message='%s'", errno,
+                  strerror(errno));
+        }
+    }
+
+    if (event.data.fd == mEventFd.get()) {
+        uint64_t value;
+        if (read(mEventFd.get(), &value, sizeof(uint64_t)) == -1 && errno != EWOULDBLOCK) {
+            ALOGE("error while reading from eventfd. errno=%d message='%s'", errno,
+                  strerror(errno));
+        }
+        return WOULD_BLOCK;
+    }
+
+    std::lock_guard lock{mMutex};
+    return mEndpoint->readReleaseFence(outId, outFence, outMaxAcquiredBufferCount);
+}
+
+void BLASTBufferQueue::BufferReleaseReader::interruptBlockingRead() {
+    uint64_t value = 1;
+    if (write(mEventFd.get(), &value, sizeof(uint64_t)) == -1) {
+        ALOGE("failed to notify dequeue event. errno=%d message='%s'", errno, strerror(errno));
+    }
+}
+
+void BLASTBufferQueue::BufferReleaseThread::start(const sp<BLASTBufferQueue>& bbq) {
+    mRunning = std::make_shared<std::atomic_bool>(true);
+    mReader = bbq->mBufferReleaseReader;
+    std::thread([running = mRunning, reader = mReader, weakBbq = wp<BLASTBufferQueue>(bbq)]() {
+        pthread_setname_np(pthread_self(), "BufferReleaseThread");
+        while (*running) {
+            ReleaseCallbackId id;
+            sp<Fence> fence;
+            uint32_t maxAcquiredBufferCount;
+            if (status_t status = reader->readBlocking(id, fence, maxAcquiredBufferCount);
+                status != OK) {
+                continue;
+            }
+            sp<BLASTBufferQueue> bbq = weakBbq.promote();
+            if (!bbq) {
+                return;
+            }
+            bbq->releaseBufferCallback(id, fence, maxAcquiredBufferCount);
+        }
+    }).detach();
+}
+
+BLASTBufferQueue::BufferReleaseThread::~BufferReleaseThread() {
+    *mRunning = false;
+    mReader->interruptBlockingRead();
+}
+
+#endif
+
 } // namespace android

diff --git a/libs/gui/Surface.cpp b/libs/gui/Surface.cpp
index 76d74fe..66e7ddd 100644
--- a/libs/gui/Surface.cpp
+++ b/libs/gui/Surface.cpp

@@ -741,11 +741,12 @@
     return res;
 }
 
-status_t Surface::queueBuffer(const sp<GraphicBuffer>& buffer, const sp<Fence>& fd) {
+status_t Surface::queueBuffer(const sp<GraphicBuffer>& buffer, const sp<Fence>& fd,
+                              SurfaceQueueBufferOutput* output) {
     if (buffer == nullptr) {
         return BAD_VALUE;
     }
-    return queueBuffer(buffer.get(), fd ? fd->get() : -1);
+    return queueBuffer(buffer.get(), fd ? fd->get() : -1, output);
 }
 
 status_t Surface::detachBuffer(const sp<GraphicBuffer>& buffer) {
@@ -1195,7 +1196,8 @@
 
 #if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
 
-int Surface::queueBuffer(android_native_buffer_t* buffer, int fenceFd) {
+int Surface::queueBuffer(android_native_buffer_t* buffer, int fenceFd,
+                         SurfaceQueueBufferOutput* surfaceOutput) {
     ATRACE_CALL();
     ALOGV("Surface::queueBuffer");
 
@@ -1245,16 +1247,26 @@
         onBufferQueuedLocked(slot, fence, output);
     }
 
+    if (surfaceOutput != nullptr) {
+        *surfaceOutput = {.bufferReplaced = output.bufferReplaced};
+    }
+
     return err;
 }
 
-int Surface::queueBuffers(const std::vector<BatchQueuedBuffer>& buffers) {
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+int Surface::queueBuffers(const std::vector<BatchQueuedBuffer>& buffers,
+                          std::vector<SurfaceQueueBufferOutput>* queueBufferOutputs)
+#else
+int Surface::queueBuffers(const std::vector<BatchQueuedBuffer>& buffers)
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+{
     ATRACE_CALL();
     ALOGV("Surface::queueBuffers");
 
     size_t numBuffers = buffers.size();
-    std::vector<IGraphicBufferProducer::QueueBufferInput> queueBufferInputs(numBuffers);
-    std::vector<IGraphicBufferProducer::QueueBufferOutput> queueBufferOutputs;
+    std::vector<IGraphicBufferProducer::QueueBufferInput> igbpQueueBufferInputs(numBuffers);
+    std::vector<IGraphicBufferProducer::QueueBufferOutput> igbpQueueBufferOutputs;
     std::vector<int> bufferSlots(numBuffers, -1);
     std::vector<sp<Fence>> bufferFences(numBuffers);
 
@@ -1280,12 +1292,13 @@
             IGraphicBufferProducer::QueueBufferInput input;
             getQueueBufferInputLocked(buffers[batchIdx].buffer, buffers[batchIdx].fenceFd,
                                       buffers[batchIdx].timestamp, &input);
+            input.slot = i;
             bufferFences[batchIdx] = input.fence;
-            queueBufferInputs[batchIdx] = input;
+            igbpQueueBufferInputs[batchIdx] = input;
         }
     }
     nsecs_t now = systemTime();
-    err = mGraphicBufferProducer->queueBuffers(queueBufferInputs, &queueBufferOutputs);
+    err = mGraphicBufferProducer->queueBuffers(igbpQueueBufferInputs, &igbpQueueBufferOutputs);
     {
         Mutex::Autolock lock(mMutex);
         mLastQueueDuration = systemTime() - now;
@@ -1295,10 +1308,21 @@
 
         for (size_t batchIdx = 0; batchIdx < numBuffers; batchIdx++) {
             onBufferQueuedLocked(bufferSlots[batchIdx], bufferFences[batchIdx],
-                                 queueBufferOutputs[batchIdx]);
+                                 igbpQueueBufferOutputs[batchIdx]);
         }
     }
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+    if (queueBufferOutputs != nullptr) {
+        queueBufferOutputs->clear();
+        queueBufferOutputs->resize(numBuffers);
+        for (size_t batchIdx = 0; batchIdx < numBuffers; batchIdx++) {
+            (*queueBufferOutputs)[batchIdx].bufferReplaced =
+                    igbpQueueBufferOutputs[batchIdx].bufferReplaced;
+        }
+    }
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
     return err;
 }
 

diff --git a/libs/gui/aidl/android/gui/JankData.aidl b/libs/gui/aidl/android/gui/JankData.aidl
index 7ea9d22..ec13681 100644
--- a/libs/gui/aidl/android/gui/JankData.aidl
+++ b/libs/gui/aidl/android/gui/JankData.aidl

@@ -29,7 +29,17 @@
   int jankType;
 
   /**
-   * Expected duration in nanoseconds of this frame.
+   * Time between frames in nanoseconds.
    */
   long frameIntervalNs;
+
+  /**
+   * Time allocated to the application to render this frame.
+   */
+  long scheduledAppFrameTimeNs;
+
+  /**
+   * Time taken by the application to render this frame.
+   */
+  long actualAppFrameTimeNs;
 }

diff --git a/libs/gui/include/gui/BLASTBufferQueue.h b/libs/gui/include/gui/BLASTBufferQueue.h
index 729d46a..d787d6c 100644
--- a/libs/gui/include/gui/BLASTBufferQueue.h
+++ b/libs/gui/include/gui/BLASTBufferQueue.h

@@ -187,15 +187,6 @@
     // BufferQueue internally allows 1 more than
     // the max to be acquired
     int32_t mMaxAcquiredBuffers GUARDED_BY(mMutex) = 1;
-#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
-    int32_t mMaxDequeuedBuffers GUARDED_BY(mMutex) = 1;
-    static constexpr int32_t kMaxBufferCount = BufferQueueDefs::NUM_BUFFER_SLOTS;
-
-    bool mAsyncMode GUARDED_BY(mMutex) = false;
-    bool mSharedBufferMode GUARDED_BY(mMutex) = false;
-
-    int32_t mNumDequeued GUARDED_BY(mMutex) = 0;
-#endif
     int32_t mNumFrameAvailable GUARDED_BY(mMutex) = 0;
     int32_t mNumAcquired GUARDED_BY(mMutex) = 0;
 
@@ -204,16 +195,9 @@
     // latch stale buffers and that we don't wait on barriers from an old producer.
     uint32_t mProducerId = 0;
 
-    class BLASTBufferItem : public BufferItem {
-    public:
-        // True if BBQBufferQueueProducer is disconnected after the buffer is acquried but
-        // before it is released.
-        bool disconnectedAfterAcquired{false};
-    };
-
     // Keep a reference to the submitted buffers so we can release when surfaceflinger drops the
     // buffer or the buffer has been presented and a new buffer is ready to be presented.
-    std::unordered_map<ReleaseCallbackId, BLASTBufferItem, ReleaseBufferCallbackIdHash> mSubmitted
+    std::unordered_map<ReleaseCallbackId, BufferItem, ReleaseBufferCallbackIdHash> mSubmitted
             GUARDED_BY(mMutex);
 
     // Keep a queue of the released buffers instead of immediately releasing
@@ -331,6 +315,51 @@
     std::function<void(const std::string&)> mTransactionHangCallback;
 
     std::unordered_set<uint64_t> mSyncedFrameNumbers GUARDED_BY(mMutex);
+
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
+    class BufferReleaseReader {
+    public:
+        BufferReleaseReader() = default;
+        BufferReleaseReader(std::unique_ptr<gui::BufferReleaseChannel::ConsumerEndpoint>);
+        BufferReleaseReader& operator=(BufferReleaseReader&&);
+
+        // Block until we can read a buffer release message.
+        //
+        // Returns:
+        // * OK if a ReleaseCallbackId and Fence were successfully read.
+        // * WOULD_BLOCK if the blocking read was interrupted by interruptBlockingRead.
+        // * UNKNOWN_ERROR if something went wrong.
+        status_t readBlocking(ReleaseCallbackId& outId, sp<Fence>& outReleaseFence,
+                              uint32_t& outMaxAcquiredBufferCount);
+
+        // Signals the reader's eventfd to wake up any threads waiting on readBlocking.
+        void interruptBlockingRead();
+
+    private:
+        std::mutex mMutex;
+        std::unique_ptr<gui::BufferReleaseChannel::ConsumerEndpoint> mEndpoint GUARDED_BY(mMutex);
+        android::base::unique_fd mEpollFd;
+        android::base::unique_fd mEventFd;
+    };
+
+    // BufferReleaseChannel is used to communicate buffer releases from SurfaceFlinger to
+    // the client. See BBQBufferQueueProducer::dequeueBuffer for details.
+    std::shared_ptr<BufferReleaseReader> mBufferReleaseReader;
+    std::shared_ptr<gui::BufferReleaseChannel::ProducerEndpoint> mBufferReleaseProducer;
+
+    class BufferReleaseThread {
+    public:
+        BufferReleaseThread() = default;
+        ~BufferReleaseThread();
+        void start(const sp<BLASTBufferQueue>&);
+
+    private:
+        std::shared_ptr<std::atomic_bool> mRunning;
+        std::shared_ptr<BufferReleaseReader> mReader;
+    };
+
+    BufferReleaseThread mBufferReleaseThread;
+#endif
 };
 
 } // namespace android

diff --git a/libs/gui/include/gui/Surface.h b/libs/gui/include/gui/Surface.h
index 5ea81c4..e74f9ad 100644
--- a/libs/gui/include/gui/Surface.h
+++ b/libs/gui/include/gui/Surface.h

@@ -87,6 +87,15 @@
     virtual void onBufferDetached(int /*slot*/) override {}
 };
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+// Contains additional data from the queueBuffer operation.
+struct SurfaceQueueBufferOutput {
+    // True if this queueBuffer caused a buffer to be replaced in the queue
+    // (and therefore not will not be acquired)
+    bool bufferReplaced = false;
+};
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
 /*
  * An implementation of ANativeWindow that feeds graphics buffers into a
  * BufferQueue.
@@ -363,7 +372,12 @@
 protected:
     virtual int dequeueBuffer(ANativeWindowBuffer** buffer, int* fenceFd);
     virtual int cancelBuffer(ANativeWindowBuffer* buffer, int fenceFd);
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+    virtual int queueBuffer(ANativeWindowBuffer* buffer, int fenceFd,
+                            SurfaceQueueBufferOutput* surfaceOutput = nullptr);
+#else
     virtual int queueBuffer(ANativeWindowBuffer* buffer, int fenceFd);
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
     virtual int perform(int operation, va_list args);
     virtual int setSwapInterval(int interval);
 
@@ -422,7 +436,8 @@
     // Queues a buffer, with an optional fd fence that captures pending work on the buffer. This
     // buffer must have been returned by dequeueBuffer or associated with this Surface via an
     // attachBuffer operation.
-    status_t queueBuffer(const sp<GraphicBuffer>& buffer, const sp<Fence>& fd = Fence::NO_FENCE);
+    status_t queueBuffer(const sp<GraphicBuffer>& buffer, const sp<Fence>& fd = Fence::NO_FENCE,
+                         SurfaceQueueBufferOutput* output = nullptr);
 
     // Detaches this buffer, dissociating it from this Surface. This buffer must have been returned
     // by queueBuffer or associated with this Surface via an attachBuffer operation.
@@ -443,8 +458,13 @@
         int fenceFd = -1;
         nsecs_t timestamp = NATIVE_WINDOW_TIMESTAMP_AUTO;
     };
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+    virtual int queueBuffers(const std::vector<BatchQueuedBuffer>& buffers,
+                             std::vector<SurfaceQueueBufferOutput>* queueBufferOutputs = nullptr);
+#else
     virtual int queueBuffers(
             const std::vector<BatchQueuedBuffer>& buffers);
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
 
 protected:
     enum { NUM_BUFFER_SLOTS = BufferQueueDefs::NUM_BUFFER_SLOTS };

diff --git a/libs/gui/tests/Surface_test.cpp b/libs/gui/tests/Surface_test.cpp
index 0c3859e..88893b6 100644
--- a/libs/gui/tests/Surface_test.cpp
+++ b/libs/gui/tests/Surface_test.cpp

@@ -2422,6 +2422,101 @@
     std::future_status status = watcherDiedFuture.wait_for(std::chrono::seconds(1));
     EXPECT_EQ(std::future_status::timeout, status);
 }
+
+TEST_F(SurfaceTest, QueueBufferOutput_TracksReplacements) {
+    sp<BufferItemConsumer> consumer = sp<BufferItemConsumer>::make(GRALLOC_USAGE_SW_READ_OFTEN);
+    ASSERT_EQ(OK, consumer->setMaxBufferCount(3));
+    ASSERT_EQ(OK, consumer->setMaxAcquiredBufferCount(1));
+
+    sp<Surface> surface = consumer->getSurface();
+    sp<StubSurfaceListener> listener = sp<StubSurfaceListener>::make();
+
+    // Async mode sets up an extra buffer so the surface can queue it without waiting.
+    ASSERT_EQ(OK, surface->setMaxDequeuedBufferCount(1));
+    ASSERT_EQ(OK, surface->setAsyncMode(true));
+    ASSERT_EQ(OK, surface->connect(NATIVE_WINDOW_API_CPU, listener));
+
+    sp<GraphicBuffer> buffer;
+    sp<Fence> fence;
+    SurfaceQueueBufferOutput output;
+    BufferItem item;
+
+    // We can queue directly, without an output arg.
+    EXPECT_EQ(OK, surface->dequeueBuffer(&buffer, &fence));
+    EXPECT_EQ(OK, surface->queueBuffer(buffer, fence));
+    EXPECT_EQ(OK, consumer->acquireBuffer(&item, 0));
+    EXPECT_EQ(OK, consumer->releaseBuffer(item));
+
+    // We can queue with an output arg, and that we don't expect to see a replacement.
+    EXPECT_EQ(OK, surface->dequeueBuffer(&buffer, &fence));
+    EXPECT_EQ(OK, surface->queueBuffer(buffer, fence, &output));
+    EXPECT_FALSE(output.bufferReplaced);
+
+    // We expect see a replacement when we queue a second buffer in async mode, and the consumer
+    // hasn't acquired the first one yet.
+    EXPECT_EQ(OK, surface->dequeueBuffer(&buffer, &fence));
+    EXPECT_EQ(OK, surface->queueBuffer(buffer, fence, &output));
+    EXPECT_TRUE(output.bufferReplaced);
+}
+
+TEST_F(SurfaceTest, QueueBufferOutput_TracksReplacements_Plural) {
+    sp<BufferItemConsumer> consumer = sp<BufferItemConsumer>::make(GRALLOC_USAGE_SW_READ_OFTEN);
+    ASSERT_EQ(OK, consumer->setMaxBufferCount(4));
+    ASSERT_EQ(OK, consumer->setMaxAcquiredBufferCount(1));
+
+    sp<Surface> surface = consumer->getSurface();
+    consumer->setName(String8("TRPTest"));
+    sp<StubSurfaceListener> listener = sp<StubSurfaceListener>::make();
+
+    // Async mode sets up an extra buffer so the surface can queue it without waiting.
+    ASSERT_EQ(OK, surface->setMaxDequeuedBufferCount(2));
+    ASSERT_EQ(OK, surface->setAsyncMode(true));
+    ASSERT_EQ(OK, surface->connect(NATIVE_WINDOW_API_CPU, listener));
+
+    // dequeueBuffers requires a vector of a certain size:
+    std::vector<Surface::BatchBuffer> buffers(2);
+    std::vector<Surface::BatchQueuedBuffer> queuedBuffers;
+    std::vector<SurfaceQueueBufferOutput> outputs;
+    BufferItem item;
+
+    auto moveBuffersToQueuedBuffers = [&]() {
+        EXPECT_EQ(2u, buffers.size());
+        EXPECT_NE(nullptr, buffers[0].buffer);
+        EXPECT_NE(nullptr, buffers[1].buffer);
+
+        queuedBuffers.clear();
+        for (auto& buffer : buffers) {
+            auto& queuedBuffer = queuedBuffers.emplace_back();
+            queuedBuffer.buffer = buffer.buffer;
+            queuedBuffer.fenceFd = buffer.fenceFd;
+            queuedBuffer.timestamp = NATIVE_WINDOW_TIMESTAMP_AUTO;
+        }
+        buffers = {{}, {}};
+    };
+
+    // We can queue directly, without an output arg.
+    EXPECT_EQ(OK, surface->dequeueBuffers(&buffers));
+    moveBuffersToQueuedBuffers();
+    EXPECT_EQ(OK, surface->queueBuffers(queuedBuffers));
+    EXPECT_EQ(OK, consumer->acquireBuffer(&item, 0));
+    EXPECT_EQ(OK, consumer->releaseBuffer(item));
+
+    // We can queue with an output arg. Only the second one should be replaced.
+    EXPECT_EQ(OK, surface->dequeueBuffers(&buffers));
+    moveBuffersToQueuedBuffers();
+    EXPECT_EQ(OK, surface->queueBuffers(queuedBuffers, &outputs));
+    EXPECT_EQ(2u, outputs.size());
+    EXPECT_FALSE(outputs[0].bufferReplaced);
+    EXPECT_TRUE(outputs[1].bufferReplaced);
+
+    // Since we haven't acquired anything, both queued buffers will replace the original one.
+    EXPECT_EQ(OK, surface->dequeueBuffers(&buffers));
+    moveBuffersToQueuedBuffers();
+    EXPECT_EQ(OK, surface->queueBuffers(queuedBuffers, &outputs));
+    EXPECT_EQ(2u, outputs.size());
+    EXPECT_TRUE(outputs[0].bufferReplaced);
+    EXPECT_TRUE(outputs[1].bufferReplaced);
+}
 #endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
 
 } // namespace android

diff --git a/libs/input/input_flags.aconfig b/libs/input/input_flags.aconfig
index 500f7b4..b8a8d76 100644
--- a/libs/input/input_flags.aconfig
+++ b/libs/input/input_flags.aconfig

@@ -164,3 +164,24 @@
   description: "Show touch and pointer indicators when mirroring a single task"
   bug: "310179437"
 }
+
+flag {
+  name: "include_relative_axis_values_for_captured_touchpads"
+  namespace: "input"
+  description: "Include AXIS_RELATIVE_X and AXIS_RELATIVE_Y values when reporting touches from captured touchpads."
+  bug: "330522990"
+}
+
+flag {
+  name: "enable_per_device_input_latency_metrics"
+  namespace: "input"
+  description: "Capture input latency metrics on a per device granular level using histograms."
+  bug: "270049345"
+}
+
+flag {
+  name: "collect_palm_rejection_quality_metrics"
+  namespace: "input"
+  description: "Collect quality metrics on framework palm rejection."
+  bug: "341717757"
+}

diff --git a/libs/input/rust/lib.rs b/libs/input/rust/lib.rs
index 008f675..9b6fe3c 100644
--- a/libs/input/rust/lib.rs
+++ b/libs/input/rust/lib.rs

@@ -24,7 +24,8 @@
 
 pub use data_store::{DataStore, DefaultFileReaderWriter};
 pub use input::{
-    DeviceClass, DeviceId, InputDevice, ModifierState, MotionAction, MotionFlags, Source,
+    DeviceClass, DeviceId, InputDevice, KeyboardType, ModifierState, MotionAction, MotionFlags,
+    Source,
 };
 pub use input_verifier::InputVerifier;
 pub use keyboard_classifier::KeyboardClassifier;

diff --git a/libs/nativedisplay/include/surfacetexture/SurfaceTexture.h b/libs/nativedisplay/include/surfacetexture/SurfaceTexture.h
index 099f47d..f1453bd 100644
--- a/libs/nativedisplay/include/surfacetexture/SurfaceTexture.h
+++ b/libs/nativedisplay/include/surfacetexture/SurfaceTexture.h

@@ -98,11 +98,25 @@
      * is created in a detached state, and attachToContext must be called before
      * calls to updateTexImage.
      */
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+    SurfaceTexture(uint32_t tex, uint32_t textureTarget, bool useFenceSync, bool isControlledByApp);
+
+    SurfaceTexture(uint32_t textureTarget, bool useFenceSync, bool isControlledByApp);
+
+    SurfaceTexture(const sp<IGraphicBufferConsumer>& bq, uint32_t tex, uint32_t textureTarget,
+                   bool useFenceSync, bool isControlledByApp)
+            __attribute((deprecated("Prefer ctors that create their own surface and consumer.")));
+
+    SurfaceTexture(const sp<IGraphicBufferConsumer>& bq, uint32_t textureTarget, bool useFenceSync,
+                   bool isControlledByApp)
+            __attribute((deprecated("Prefer ctors that create their own surface and consumer.")));
+#else
     SurfaceTexture(const sp<IGraphicBufferConsumer>& bq, uint32_t tex, uint32_t textureTarget,
                    bool useFenceSync, bool isControlledByApp);
 
     SurfaceTexture(const sp<IGraphicBufferConsumer>& bq, uint32_t textureTarget, bool useFenceSync,
                    bool isControlledByApp);
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
 
     /**
      * updateTexImage acquires the most recently queued buffer, and sets the
@@ -499,6 +513,8 @@
     friend class EGLConsumer;
 
 private:
+    void initialize();
+
     // Proxy listener to avoid having SurfaceTexture directly implement FrameAvailableListener as it
     // is extending ConsumerBase which also implements FrameAvailableListener.
     class FrameAvailableListenerProxy : public ConsumerBase::FrameAvailableListener {

diff --git a/libs/nativedisplay/surfacetexture/SurfaceTexture.cpp b/libs/nativedisplay/surfacetexture/SurfaceTexture.cpp
index 3a09204..ce232cc 100644
--- a/libs/nativedisplay/surfacetexture/SurfaceTexture.cpp
+++ b/libs/nativedisplay/surfacetexture/SurfaceTexture.cpp

@@ -35,6 +35,49 @@
 
 static const mat4 mtxIdentity;
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+SurfaceTexture::SurfaceTexture(uint32_t tex, uint32_t texTarget, bool useFenceSync,
+                               bool isControlledByApp)
+      : ConsumerBase(isControlledByApp),
+        mCurrentCrop(Rect::EMPTY_RECT),
+        mCurrentTransform(0),
+        mCurrentScalingMode(NATIVE_WINDOW_SCALING_MODE_FREEZE),
+        mCurrentFence(Fence::NO_FENCE),
+        mCurrentTimestamp(0),
+        mCurrentDataSpace(HAL_DATASPACE_UNKNOWN),
+        mCurrentFrameNumber(0),
+        mDefaultWidth(1),
+        mDefaultHeight(1),
+        mFilteringEnabled(true),
+        mTexName(tex),
+        mUseFenceSync(useFenceSync),
+        mTexTarget(texTarget),
+        mCurrentTexture(BufferQueue::INVALID_BUFFER_SLOT),
+        mOpMode(OpMode::attachedToGL) {
+    initialize();
+}
+
+SurfaceTexture::SurfaceTexture(uint32_t texTarget, bool useFenceSync, bool isControlledByApp)
+      : ConsumerBase(isControlledByApp),
+        mCurrentCrop(Rect::EMPTY_RECT),
+        mCurrentTransform(0),
+        mCurrentScalingMode(NATIVE_WINDOW_SCALING_MODE_FREEZE),
+        mCurrentFence(Fence::NO_FENCE),
+        mCurrentTimestamp(0),
+        mCurrentDataSpace(HAL_DATASPACE_UNKNOWN),
+        mCurrentFrameNumber(0),
+        mDefaultWidth(1),
+        mDefaultHeight(1),
+        mFilteringEnabled(true),
+        mTexName(0),
+        mUseFenceSync(useFenceSync),
+        mTexTarget(texTarget),
+        mCurrentTexture(BufferQueue::INVALID_BUFFER_SLOT),
+        mOpMode(OpMode::detached) {
+    initialize();
+}
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+
 SurfaceTexture::SurfaceTexture(const sp<IGraphicBufferConsumer>& bq, uint32_t tex,
                                uint32_t texTarget, bool useFenceSync, bool isControlledByApp)
       : ConsumerBase(bq, isControlledByApp),
@@ -53,11 +96,7 @@
         mTexTarget(texTarget),
         mCurrentTexture(BufferQueue::INVALID_BUFFER_SLOT),
         mOpMode(OpMode::attachedToGL) {
-    SFT_LOGV("SurfaceTexture");
-
-    memcpy(mCurrentTransformMatrix, mtxIdentity.asArray(), sizeof(mCurrentTransformMatrix));
-
-    mConsumer->setConsumerUsageBits(DEFAULT_USAGE_FLAGS);
+    initialize();
 }
 
 SurfaceTexture::SurfaceTexture(const sp<IGraphicBufferConsumer>& bq, uint32_t texTarget,
@@ -78,11 +117,7 @@
         mTexTarget(texTarget),
         mCurrentTexture(BufferQueue::INVALID_BUFFER_SLOT),
         mOpMode(OpMode::detached) {
-    SFT_LOGV("SurfaceTexture");
-
-    memcpy(mCurrentTransformMatrix, mtxIdentity.asArray(), sizeof(mCurrentTransformMatrix));
-
-    mConsumer->setConsumerUsageBits(DEFAULT_USAGE_FLAGS);
+    initialize();
 }
 
 status_t SurfaceTexture::setDefaultBufferSize(uint32_t w, uint32_t h) {
@@ -531,4 +566,12 @@
 }
 #endif
 
+void SurfaceTexture::initialize() {
+    SFT_LOGV("SurfaceTexture");
+
+    memcpy(mCurrentTransformMatrix, mtxIdentity.asArray(), sizeof(mCurrentTransformMatrix));
+
+    mConsumer->setConsumerUsageBits(DEFAULT_USAGE_FLAGS);
+}
+
 } // namespace android

diff --git a/libs/nativewindow/Android.bp b/libs/nativewindow/Android.bp
index 8558074..a8a86ba 100644
--- a/libs/nativewindow/Android.bp
+++ b/libs/nativewindow/Android.bp

@@ -67,9 +67,6 @@
 
     // Android O
     first_version: "26",
-    export_header_libs: [
-        "libnativewindow_ndk_headers",
-    ],
 }
 
 cc_library {

diff --git a/libs/nativewindow/tests/ANativeWindowTest.cpp b/libs/nativewindow/tests/ANativeWindowTest.cpp
index 6cf8291..937ff02 100644
--- a/libs/nativewindow/tests/ANativeWindowTest.cpp
+++ b/libs/nativewindow/tests/ANativeWindowTest.cpp

@@ -50,9 +50,14 @@
         const ::testing::TestInfo* const test_info =
                 ::testing::UnitTest::GetInstance()->current_test_info();
         ALOGV("**** Setting up for %s.%s\n", test_info->test_case_name(), test_info->name());
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+        mItemConsumer = new BufferItemConsumer(GRALLOC_USAGE_SW_READ_OFTEN);
+        mWindow = new TestableSurface(mItemConsumer->getSurface()->getIGraphicBufferProducer());
+#else
         BufferQueue::createBufferQueue(&mProducer, &mConsumer);
         mItemConsumer = new BufferItemConsumer(mConsumer, GRALLOC_USAGE_SW_READ_OFTEN);
         mWindow = new TestableSurface(mProducer);
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
         const int success = native_window_api_connect(mWindow.get(), NATIVE_WINDOW_API_CPU);
         EXPECT_EQ(0, success);
     }
@@ -64,10 +69,12 @@
         const int success = native_window_api_disconnect(mWindow.get(), NATIVE_WINDOW_API_CPU);
         EXPECT_EQ(0, success);
     }
+
+#if !COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
     sp<IGraphicBufferProducer> mProducer;
     sp<IGraphicBufferConsumer> mConsumer;
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
     sp<BufferItemConsumer> mItemConsumer;
-
     sp<TestableSurface> mWindow;
 };
 

diff --git a/opengl/libs/Android.bp b/opengl/libs/Android.bp
index 16de390..5159ffe 100644
--- a/opengl/libs/Android.bp
+++ b/opengl/libs/Android.bp

@@ -40,9 +40,6 @@
     symbol_file: "libEGL.map.txt",
     first_version: "9",
     unversioned_until: "current",
-    export_header_libs: [
-        "libEGL_headers",
-    ],
 }
 
 ndk_library {
@@ -50,9 +47,6 @@
     symbol_file: "libGLESv1_CM.map.txt",
     first_version: "9",
     unversioned_until: "current",
-    export_header_libs: [
-        "libGLESv1_CM_headers",
-    ],
 }
 
 ndk_library {
@@ -60,9 +54,6 @@
     symbol_file: "libGLESv2.map.txt",
     first_version: "9",
     unversioned_until: "current",
-    export_header_libs: [
-        "libGLESv2_headers",
-    ],
 }
 
 ndk_library {
@@ -70,9 +61,6 @@
     symbol_file: "libGLESv3.map.txt",
     first_version: "18",
     unversioned_until: "current",
-    export_header_libs: [
-        "libGLESv3_headers",
-    ],
 }
 
 cc_defaults {

diff --git a/services/audiomanager/IAudioManager.cpp b/services/audiomanager/IAudioManager.cpp
index 3ef5049..da1aae2 100644
--- a/services/audiomanager/IAudioManager.cpp
+++ b/services/audiomanager/IAudioManager.cpp

@@ -152,6 +152,12 @@
         data.writeNullableParcelable(extras);
         return remote()->transact(PORT_EVENT, data, &reply, IBinder::FLAG_ONEWAY);
     }
+
+    virtual status_t permissionUpdateBarrier() {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioManager::getInterfaceDescriptor());
+        return remote()->transact(PERMISSION_UPDATE_BARRIER, data, &reply, 0);
+    }
 };
 
 IMPLEMENT_META_INTERFACE(AudioManager, "android.media.IAudioService");

diff --git a/services/gpuservice/gpuwork/GpuWork.cpp b/services/gpuservice/gpuwork/GpuWork.cpp
index 1a744ab..00161e6 100644
--- a/services/gpuservice/gpuwork/GpuWork.cpp
+++ b/services/gpuservice/gpuwork/GpuWork.cpp

@@ -118,6 +118,9 @@
 }
 
 void GpuWork::initialize() {
+    // Workaround b/347947040 by allowing time for statsd / bpf setup.
+    std::this_thread::sleep_for(std::chrono::seconds(30));
+
     // Make sure BPF programs are loaded.
     bpf::waitForProgsLoaded();
 

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-0 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-0
new file mode 100644
index 0000000..120a34d
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-0
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-1 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-1
new file mode 100644
index 0000000..92d5bdf
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-1
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-10 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-10
new file mode 100644
index 0000000..c044c84
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-10
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-11 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-11
new file mode 100644
index 0000000..430552e
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-11
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-12 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-12
new file mode 100644
index 0000000..f7849bb
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-12
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-13 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-13
new file mode 100644
index 0000000..2f0a655
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-13
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-14 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-14
new file mode 100644
index 0000000..bd8fb01
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-14
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-15 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-15
new file mode 100644
index 0000000..29aa2b1
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-15
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-16 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-16
new file mode 100644
index 0000000..e00100f
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-16
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-17 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-17
new file mode 100644
index 0000000..db281e1
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-17
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-18 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-18
new file mode 100644
index 0000000..5592c32
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-18
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-2 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-2
new file mode 100644
index 0000000..5bd2b99
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-2
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-3 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-3
new file mode 100644
index 0000000..2d89289
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-3
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-4 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-4
new file mode 100644
index 0000000..8f3f1c2
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-4
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-5 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-5
new file mode 100644
index 0000000..95b05e7
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-5
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-6 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-6
new file mode 100644
index 0000000..497a501
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-6
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-7 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-7
new file mode 100644
index 0000000..9902bde
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-7
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-8 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-8
new file mode 100644
index 0000000..fdaaf31
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-8
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-9 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-9
new file mode 100644
index 0000000..a197c6a
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-9
Binary files differ

diff --git a/services/inputflinger/InputFilter.cpp b/services/inputflinger/InputFilter.cpp
index e4d73fc..2ef94fb 100644
--- a/services/inputflinger/InputFilter.cpp
+++ b/services/inputflinger/InputFilter.cpp

@@ -60,6 +60,7 @@
         AidlDeviceInfo& aidlInfo = mDeviceInfos.emplace_back();
         aidlInfo.deviceId = info.getId();
         aidlInfo.external = info.isExternal();
+        aidlInfo.keyboardType = info.getKeyboardType();
     }
     if (isFilterEnabled()) {
         LOG_ALWAYS_FATAL_IF(!mInputFilterRust->notifyInputDevicesChanged(mDeviceInfos).isOk());
@@ -145,6 +146,12 @@
 
 void InputFilter::dump(std::string& dump) {
     dump += "InputFilter:\n";
+    if (isFilterEnabled()) {
+        std::string result;
+        LOG_ALWAYS_FATAL_IF(!mInputFilterRust->dumpFilter(&result).isOk());
+        dump += result;
+        dump += "\n";
+    }
 }
 
 } // namespace android

diff --git a/services/inputflinger/InputManager.cpp b/services/inputflinger/InputManager.cpp
index 41e5247..b155122 100644
--- a/services/inputflinger/InputManager.cpp
+++ b/services/inputflinger/InputManager.cpp

@@ -250,6 +250,10 @@
         mCollector->dump(dump);
         dump += '\n';
     }
+    if (ENABLE_INPUT_FILTER_RUST) {
+        mInputFilter->dump(dump);
+        dump += '\n';
+    }
     mDispatcher->dump(dump);
     dump += '\n';
 }

diff --git a/services/inputflinger/aidl/com/android/server/inputflinger/DeviceInfo.aidl b/services/inputflinger/aidl/com/android/server/inputflinger/DeviceInfo.aidl
index b9e6a03..5b0b9ac 100644
--- a/services/inputflinger/aidl/com/android/server/inputflinger/DeviceInfo.aidl
+++ b/services/inputflinger/aidl/com/android/server/inputflinger/DeviceInfo.aidl

@@ -23,4 +23,5 @@
 parcelable DeviceInfo {
     int deviceId;
     boolean external;
+    int keyboardType;
 }
\ No newline at end of file

diff --git a/services/inputflinger/aidl/com/android/server/inputflinger/IInputFilter.aidl b/services/inputflinger/aidl/com/android/server/inputflinger/IInputFilter.aidl
index 994d1c4..31b7231 100644
--- a/services/inputflinger/aidl/com/android/server/inputflinger/IInputFilter.aidl
+++ b/services/inputflinger/aidl/com/android/server/inputflinger/IInputFilter.aidl

@@ -54,5 +54,7 @@
 
     /** Notifies when configuration changes */
     void notifyConfigurationChanged(in InputFilterConfiguration config);
+
+    String dumpFilter();
 }
 

diff --git a/services/inputflinger/dispatcher/InputDispatcher.cpp b/services/inputflinger/dispatcher/InputDispatcher.cpp
index bcef350..250e72c 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.cpp
+++ b/services/inputflinger/dispatcher/InputDispatcher.cpp

@@ -52,6 +52,7 @@
 #include "Connection.h"
 #include "DebugConfig.h"
 #include "InputDispatcher.h"
+#include "InputEventTimeline.h"
 #include "trace/InputTracer.h"
 #include "trace/InputTracingPerfettoBackend.h"
 #include "trace/ThreadedBackend.h"
@@ -4642,10 +4643,9 @@
         if (args.id != android::os::IInputConstants::INVALID_INPUT_EVENT_ID &&
             IdGenerator::getSource(args.id) == IdGenerator::Source::INPUT_READER &&
             !mInputFilterEnabled) {
-            const bool isDown = args.action == AMOTION_EVENT_ACTION_DOWN;
             std::set<InputDeviceUsageSource> sources = getUsageSourcesForMotionArgs(args);
-            mLatencyTracker.trackListener(args.id, isDown, args.eventTime, args.readTime,
-                                          args.deviceId, sources);
+            mLatencyTracker.trackListener(args.id, args.eventTime, args.readTime, args.deviceId,
+                                          sources, args.action, InputEventType::MOTION);
         }
 
         needWake = enqueueInboundEventLocked(std::move(newEntry));

diff --git a/services/inputflinger/dispatcher/InputEventTimeline.cpp b/services/inputflinger/dispatcher/InputEventTimeline.cpp
index a365003..31ceb8d 100644
--- a/services/inputflinger/dispatcher/InputEventTimeline.cpp
+++ b/services/inputflinger/dispatcher/InputEventTimeline.cpp

@@ -68,13 +68,15 @@
 
 InputEventTimeline::InputEventTimeline(bool isDown, nsecs_t eventTime, nsecs_t readTime,
                                        uint16_t vendorId, uint16_t productId,
-                                       const std::set<InputDeviceUsageSource>& sources)
+                                       const std::set<InputDeviceUsageSource>& sources,
+                                       InputEventActionType inputEventActionType)
       : isDown(isDown),
         eventTime(eventTime),
         readTime(readTime),
         vendorId(vendorId),
         productId(productId),
-        sources(sources) {}
+        sources(sources),
+        inputEventActionType(inputEventActionType) {}
 
 bool InputEventTimeline::operator==(const InputEventTimeline& rhs) const {
     if (connectionTimelines.size() != rhs.connectionTimelines.size()) {
@@ -90,7 +92,8 @@
         }
     }
     return isDown == rhs.isDown && eventTime == rhs.eventTime && readTime == rhs.readTime &&
-            vendorId == rhs.vendorId && productId == rhs.productId && sources == rhs.sources;
+            vendorId == rhs.vendorId && productId == rhs.productId && sources == rhs.sources &&
+            inputEventActionType == rhs.inputEventActionType;
 }
 
 } // namespace android::inputdispatcher

diff --git a/services/inputflinger/dispatcher/InputEventTimeline.h b/services/inputflinger/dispatcher/InputEventTimeline.h
index 1756944..6668399 100644
--- a/services/inputflinger/dispatcher/InputEventTimeline.h
+++ b/services/inputflinger/dispatcher/InputEventTimeline.h

@@ -74,15 +74,39 @@
     bool mHasGraphicsTimeline = false;
 };
 
+enum class InputEventActionType : int32_t {
+    UNKNOWN_INPUT_EVENT = 0,
+    MOTION_ACTION_DOWN = 1,
+    // Motion events for ACTION_MOVE (characterizes scrolling motion)
+    MOTION_ACTION_MOVE = 2,
+    // Motion events for ACTION_UP (when the pointer first goes up)
+    MOTION_ACTION_UP = 3,
+    // Motion events for ACTION_HOVER_MOVE (pointer position on screen changes but pointer is not
+    // down)
+    MOTION_ACTION_HOVER_MOVE = 4,
+    // Motion events for ACTION_SCROLL (moving the mouse wheel)
+    MOTION_ACTION_SCROLL = 5,
+    // Key events for both ACTION_DOWN and ACTION_UP (key press and key release)
+    KEY = 6,
+
+    ftl_first = UNKNOWN_INPUT_EVENT,
+    ftl_last = KEY,
+    // Used by latency fuzzer
+    kMaxValue = ftl_last
+
+};
+
 struct InputEventTimeline {
     InputEventTimeline(bool isDown, nsecs_t eventTime, nsecs_t readTime, uint16_t vendorId,
-                       uint16_t productId, const std::set<InputDeviceUsageSource>& sources);
+                       uint16_t productId, const std::set<InputDeviceUsageSource>& sources,
+                       InputEventActionType inputEventActionType);
     const bool isDown; // True if this is an ACTION_DOWN event
     const nsecs_t eventTime;
     const nsecs_t readTime;
     const uint16_t vendorId;
     const uint16_t productId;
     const std::set<InputDeviceUsageSource> sources;
+    const InputEventActionType inputEventActionType;
 
     struct IBinderHash {
         std::size_t operator()(const sp<IBinder>& b) const {

diff --git a/services/inputflinger/dispatcher/LatencyTracker.cpp b/services/inputflinger/dispatcher/LatencyTracker.cpp
index 698bd9f..721d009 100644
--- a/services/inputflinger/dispatcher/LatencyTracker.cpp
+++ b/services/inputflinger/dispatcher/LatencyTracker.cpp

@@ -67,9 +67,10 @@
     LOG_ALWAYS_FATAL_IF(processor == nullptr);
 }
 
-void LatencyTracker::trackListener(int32_t inputEventId, bool isDown, nsecs_t eventTime,
-                                   nsecs_t readTime, DeviceId deviceId,
-                                   const std::set<InputDeviceUsageSource>& sources) {
+void LatencyTracker::trackListener(int32_t inputEventId, nsecs_t eventTime, nsecs_t readTime,
+                                   DeviceId deviceId,
+                                   const std::set<InputDeviceUsageSource>& sources,
+                                   int inputEventAction, InputEventType inputEventType) {
     reportAndPruneMatureRecords(eventTime);
     const auto it = mTimelines.find(inputEventId);
     if (it != mTimelines.end()) {
@@ -101,9 +102,43 @@
         return;
     }
 
+    const InputEventActionType inputEventActionType = [&]() {
+        switch (inputEventType) {
+            case InputEventType::MOTION: {
+                switch (inputEventAction) {
+                    case AMOTION_EVENT_ACTION_DOWN:
+                        return InputEventActionType::MOTION_ACTION_DOWN;
+                    case AMOTION_EVENT_ACTION_MOVE:
+                        return InputEventActionType::MOTION_ACTION_MOVE;
+                    case AMOTION_EVENT_ACTION_UP:
+                        return InputEventActionType::MOTION_ACTION_UP;
+                    case AMOTION_EVENT_ACTION_HOVER_MOVE:
+                        return InputEventActionType::MOTION_ACTION_HOVER_MOVE;
+                    case AMOTION_EVENT_ACTION_SCROLL:
+                        return InputEventActionType::MOTION_ACTION_SCROLL;
+                    default:
+                        return InputEventActionType::UNKNOWN_INPUT_EVENT;
+                }
+            }
+            case InputEventType::KEY: {
+                switch (inputEventAction) {
+                    case AKEY_EVENT_ACTION_DOWN:
+                    case AKEY_EVENT_ACTION_UP:
+                        return InputEventActionType::KEY;
+                    default:
+                        return InputEventActionType::UNKNOWN_INPUT_EVENT;
+                }
+            }
+            default:
+                return InputEventActionType::UNKNOWN_INPUT_EVENT;
+        }
+    }();
+
+    bool isDown = inputEventType == InputEventType::MOTION &&
+            inputEventAction == AMOTION_EVENT_ACTION_DOWN;
     mTimelines.emplace(inputEventId,
                        InputEventTimeline(isDown, eventTime, readTime, identifier->vendor,
-                                          identifier->product, sources));
+                                          identifier->product, sources, inputEventActionType));
     mEventTimes.emplace(eventTime, inputEventId);
 }
 

diff --git a/services/inputflinger/dispatcher/LatencyTracker.h b/services/inputflinger/dispatcher/LatencyTracker.h
index 890d61d..532f422 100644
--- a/services/inputflinger/dispatcher/LatencyTracker.h
+++ b/services/inputflinger/dispatcher/LatencyTracker.h

@@ -52,8 +52,9 @@
      * duplicate events that happen to have the same eventTime and inputEventId. Therefore, we
      * must drop all duplicate data.
      */
-    void trackListener(int32_t inputEventId, bool isDown, nsecs_t eventTime, nsecs_t readTime,
-                       DeviceId deviceId, const std::set<InputDeviceUsageSource>& sources);
+    void trackListener(int32_t inputEventId, nsecs_t eventTime, nsecs_t readTime, DeviceId deviceId,
+                       const std::set<InputDeviceUsageSource>& sources, int inputEventActionType,
+                       InputEventType inputEventType);
     void trackFinishedEvent(int32_t inputEventId, const sp<IBinder>& connectionToken,
                             nsecs_t deliveryTime, nsecs_t consumeTime, nsecs_t finishTime);
     void trackGraphicsLatency(int32_t inputEventId, const sp<IBinder>& connectionToken,

diff --git a/services/inputflinger/reader/mapper/CapturedTouchpadEventConverter.cpp b/services/inputflinger/reader/mapper/CapturedTouchpadEventConverter.cpp
index c8e7790..dd46bbc 100644
--- a/services/inputflinger/reader/mapper/CapturedTouchpadEventConverter.cpp
+++ b/services/inputflinger/reader/mapper/CapturedTouchpadEventConverter.cpp

@@ -20,14 +20,19 @@
 #include <sstream>
 
 #include <android-base/stringprintf.h>
+#include <com_android_input_flags.h>
 #include <input/PrintTools.h>
 #include <linux/input-event-codes.h>
 #include <log/log_main.h>
 
+namespace input_flags = com::android::input::flags;
+
 namespace android {
 
 namespace {
 
+static constexpr uint32_t SOURCE = AINPUT_SOURCE_TOUCHPAD;
+
 int32_t actionWithIndex(int32_t action, int32_t index) {
     return action | (index << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT);
 }
@@ -43,6 +48,12 @@
     return i;
 }
 
+void addRawMotionRange(InputDeviceInfo& deviceInfo, int32_t androidAxis,
+                       RawAbsoluteAxisInfo& evdevAxis) {
+    deviceInfo.addMotionRange(androidAxis, SOURCE, evdevAxis.minValue, evdevAxis.maxValue,
+                              evdevAxis.flat, evdevAxis.fuzz, evdevAxis.resolution);
+}
+
 } // namespace
 
 CapturedTouchpadEventConverter::CapturedTouchpadEventConverter(
@@ -108,8 +119,15 @@
 }
 
 void CapturedTouchpadEventConverter::populateMotionRanges(InputDeviceInfo& info) const {
-    tryAddRawMotionRange(/*byref*/ info, AMOTION_EVENT_AXIS_X, ABS_MT_POSITION_X);
-    tryAddRawMotionRange(/*byref*/ info, AMOTION_EVENT_AXIS_Y, ABS_MT_POSITION_Y);
+    if (input_flags::include_relative_axis_values_for_captured_touchpads()) {
+        tryAddRawMotionRangeWithRelative(/*byref*/ info, AMOTION_EVENT_AXIS_X,
+                                         AMOTION_EVENT_AXIS_RELATIVE_X, ABS_MT_POSITION_X);
+        tryAddRawMotionRangeWithRelative(/*byref*/ info, AMOTION_EVENT_AXIS_Y,
+                                         AMOTION_EVENT_AXIS_RELATIVE_Y, ABS_MT_POSITION_Y);
+    } else {
+        tryAddRawMotionRange(/*byref*/ info, AMOTION_EVENT_AXIS_X, ABS_MT_POSITION_X);
+        tryAddRawMotionRange(/*byref*/ info, AMOTION_EVENT_AXIS_Y, ABS_MT_POSITION_Y);
+    }
     tryAddRawMotionRange(/*byref*/ info, AMOTION_EVENT_AXIS_TOUCH_MAJOR, ABS_MT_TOUCH_MAJOR);
     tryAddRawMotionRange(/*byref*/ info, AMOTION_EVENT_AXIS_TOUCH_MINOR, ABS_MT_TOUCH_MINOR);
     tryAddRawMotionRange(/*byref*/ info, AMOTION_EVENT_AXIS_TOOL_MAJOR, ABS_MT_WIDTH_MAJOR);
@@ -135,8 +153,23 @@
                                                           int32_t evdevAxis) const {
     std::optional<RawAbsoluteAxisInfo> info = mDeviceContext.getAbsoluteAxisInfo(evdevAxis);
     if (info) {
-        deviceInfo.addMotionRange(androidAxis, SOURCE, info->minValue, info->maxValue, info->flat,
-                                  info->fuzz, info->resolution);
+        addRawMotionRange(/*byref*/ deviceInfo, androidAxis, *info);
+    }
+}
+
+void CapturedTouchpadEventConverter::tryAddRawMotionRangeWithRelative(InputDeviceInfo& deviceInfo,
+                                                                      int32_t androidAxis,
+                                                                      int32_t androidRelativeAxis,
+                                                                      int32_t evdevAxis) const {
+    std::optional<RawAbsoluteAxisInfo> axisInfo = mDeviceContext.getAbsoluteAxisInfo(evdevAxis);
+    if (axisInfo) {
+        addRawMotionRange(/*byref*/ deviceInfo, androidAxis, *axisInfo);
+
+        // The largest movement we could possibly report on a relative axis is from the minimum to
+        // the maximum (or vice versa) of the absolute axis.
+        float range = axisInfo->maxValue - axisInfo->minValue;
+        deviceInfo.addMotionRange(androidRelativeAxis, SOURCE, -range, range, axisInfo->flat,
+                                  axisInfo->fuzz, axisInfo->resolution);
     }
 }
 
@@ -163,7 +196,7 @@
     std::list<NotifyArgs> out;
     std::vector<PointerCoords> coords;
     std::vector<PointerProperties> properties;
-    std::map<size_t, size_t> coordsIndexForSlotNumber;
+    std::map<size_t /*slotNumber*/, size_t /*coordsIndex*/> coordsIndexForSlotNumber;
 
     // For all the touches that were already down, send a MOVE event with their updated coordinates.
     // A convention of the MotionEvent API is that pointer coordinates in UP events match the
@@ -175,11 +208,19 @@
             // to stay perfectly still between frames, and if it does the worst that can happen is
             // an extra MOVE event, so it's not worth the overhead of checking for changes.
             coordsIndexForSlotNumber[slotNumber] = coords.size();
-            coords.push_back(makePointerCoordsForSlot(mMotionAccumulator.getSlot(slotNumber)));
+            coords.push_back(makePointerCoordsForSlot(slotNumber));
             properties.push_back({.id = pointerId, .toolType = ToolType::FINGER});
         }
         out.push_back(
                 makeMotionArgs(when, readTime, AMOTION_EVENT_ACTION_MOVE, coords, properties));
+        if (input_flags::include_relative_axis_values_for_captured_touchpads()) {
+            // For any further events we send from this sync, the pointers won't have moved relative
+            // to the positions we just reported in this MOVE event, so zero out the relative axes.
+            for (PointerCoords& pointer : coords) {
+                pointer.setAxisValue(AMOTION_EVENT_AXIS_RELATIVE_X, 0);
+                pointer.setAxisValue(AMOTION_EVENT_AXIS_RELATIVE_Y, 0);
+            }
+        }
     }
 
     std::vector<size_t> upSlots, downSlots;
@@ -234,6 +275,9 @@
                                      /*flags=*/cancel ? AMOTION_EVENT_FLAG_CANCELED : 0));
 
         freePointerIdForSlot(slotNumber);
+        if (input_flags::include_relative_axis_values_for_captured_touchpads()) {
+            mPreviousCoordsForSlotNumber.erase(slotNumber);
+        }
         coords.erase(coords.begin() + indexToRemove);
         properties.erase(properties.begin() + indexToRemove);
         // Now that we've removed some coords and properties, we might have to update the slot
@@ -254,7 +298,7 @@
                 : actionWithIndex(AMOTION_EVENT_ACTION_POINTER_DOWN, coordsIndex);
 
         coordsIndexForSlotNumber[slotNumber] = coordsIndex;
-        coords.push_back(makePointerCoordsForSlot(mMotionAccumulator.getSlot(slotNumber)));
+        coords.push_back(makePointerCoordsForSlot(slotNumber));
         properties.push_back(
                 {.id = allocatePointerIdToSlot(slotNumber), .toolType = ToolType::FINGER});
 
@@ -286,12 +330,22 @@
                             AMOTION_EVENT_INVALID_CURSOR_POSITION, mDownTime, /*videoFrames=*/{});
 }
 
-PointerCoords CapturedTouchpadEventConverter::makePointerCoordsForSlot(
-        const MultiTouchMotionAccumulator::Slot& slot) const {
+PointerCoords CapturedTouchpadEventConverter::makePointerCoordsForSlot(size_t slotNumber) {
+    const MultiTouchMotionAccumulator::Slot& slot = mMotionAccumulator.getSlot(slotNumber);
     PointerCoords coords;
     coords.clear();
     coords.setAxisValue(AMOTION_EVENT_AXIS_X, slot.getX());
     coords.setAxisValue(AMOTION_EVENT_AXIS_Y, slot.getY());
+    if (input_flags::include_relative_axis_values_for_captured_touchpads()) {
+        if (auto it = mPreviousCoordsForSlotNumber.find(slotNumber);
+            it != mPreviousCoordsForSlotNumber.end()) {
+            auto [oldX, oldY] = it->second;
+            coords.setAxisValue(AMOTION_EVENT_AXIS_RELATIVE_X, slot.getX() - oldX);
+            coords.setAxisValue(AMOTION_EVENT_AXIS_RELATIVE_Y, slot.getY() - oldY);
+        }
+        mPreviousCoordsForSlotNumber[slotNumber] = std::make_pair(slot.getX(), slot.getY());
+    }
+
     coords.setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR, slot.getTouchMajor());
     coords.setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR, slot.getTouchMinor());
     coords.setAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR, slot.getToolMajor());

diff --git a/services/inputflinger/reader/mapper/CapturedTouchpadEventConverter.h b/services/inputflinger/reader/mapper/CapturedTouchpadEventConverter.h
index 9b6df7a..d6c0708 100644
--- a/services/inputflinger/reader/mapper/CapturedTouchpadEventConverter.h
+++ b/services/inputflinger/reader/mapper/CapturedTouchpadEventConverter.h

@@ -21,6 +21,7 @@
 #include <map>
 #include <set>
 #include <string>
+#include <utility>
 #include <vector>
 
 #include <android/input.h>
@@ -49,12 +50,14 @@
 private:
     void tryAddRawMotionRange(InputDeviceInfo& deviceInfo, int32_t androidAxis,
                               int32_t evdevAxis) const;
+    void tryAddRawMotionRangeWithRelative(InputDeviceInfo& deviceInfo, int32_t androidAxis,
+                                          int32_t androidRelativeAxis, int32_t evdevAxis) const;
     [[nodiscard]] std::list<NotifyArgs> sync(nsecs_t when, nsecs_t readTime);
     [[nodiscard]] NotifyMotionArgs makeMotionArgs(nsecs_t when, nsecs_t readTime, int32_t action,
                                                   const std::vector<PointerCoords>& coords,
                                                   const std::vector<PointerProperties>& properties,
                                                   int32_t actionButton = 0, int32_t flags = 0);
-    PointerCoords makePointerCoordsForSlot(const MultiTouchMotionAccumulator::Slot& slot) const;
+    PointerCoords makePointerCoordsForSlot(size_t slotNumber);
     int32_t allocatePointerIdToSlot(size_t slotNumber);
     void freePointerIdForSlot(size_t slotNumber);
 
@@ -76,8 +79,7 @@
 
     std::bitset<MAX_POINTER_ID + 1> mPointerIdsInUse;
     std::map<size_t, int32_t> mPointerIdForSlotNumber;
-
-    static constexpr uint32_t SOURCE = AINPUT_SOURCE_TOUCHPAD;
+    std::map<size_t, std::pair<float, float>> mPreviousCoordsForSlotNumber;
 };
 
 } // namespace android

diff --git a/services/inputflinger/rust/bounce_keys_filter.rs b/services/inputflinger/rust/bounce_keys_filter.rs
index 2d5039a..e05e8e5 100644
--- a/services/inputflinger/rust/bounce_keys_filter.rs
+++ b/services/inputflinger/rust/bounce_keys_filter.rs

@@ -17,12 +17,13 @@
 //! Bounce keys input filter implementation.
 //! Bounce keys is an accessibility feature to aid users who have physical disabilities, that
 //! allows the user to configure the device to ignore rapid, repeated key presses of the same key.
-use crate::input_filter::Filter;
+use crate::input_filter::{Filter, VIRTUAL_KEYBOARD_DEVICE_ID};
 
 use android_hardware_input_common::aidl::android::hardware::input::common::Source::Source;
 use com_android_server_inputflinger::aidl::com::android::server::inputflinger::{
     DeviceInfo::DeviceInfo, KeyEvent::KeyEvent, KeyEventAction::KeyEventAction,
 };
+use input::KeyboardType;
 use log::debug;
 use std::collections::{HashMap, HashSet};
 
@@ -42,7 +43,7 @@
     next: Box<dyn Filter + Send + Sync>,
     key_event_map: HashMap<i32, LastUpKeyEvent>,
     blocked_events: Vec<BlockedEvent>,
-    external_devices: HashSet<i32>,
+    supported_devices: HashSet<i32>,
     bounce_key_threshold_ns: i64,
 }
 
@@ -56,7 +57,7 @@
             next,
             key_event_map: HashMap::new(),
             blocked_events: Vec::new(),
-            external_devices: HashSet::new(),
+            supported_devices: HashSet::new(),
             bounce_key_threshold_ns,
         }
     }
@@ -64,7 +65,10 @@
 
 impl Filter for BounceKeysFilter {
     fn notify_key(&mut self, event: &KeyEvent) {
-        if !(self.external_devices.contains(&event.deviceId) && event.source == Source::KEYBOARD) {
+        // Check if it is a supported device and event source contains Source::KEYBOARD
+        if !(self.supported_devices.contains(&event.deviceId)
+            && event.source.0 & Source::KEYBOARD.0 != 0)
+        {
             self.next.notify_key(event);
             return;
         }
@@ -110,10 +114,17 @@
         self.blocked_events.retain(|blocked_event| {
             device_infos.iter().any(|x| blocked_event.device_id == x.deviceId)
         });
-        self.external_devices.clear();
+        self.supported_devices.clear();
         for device_info in device_infos {
-            if device_info.external {
-                self.external_devices.insert(device_info.deviceId);
+            if device_info.deviceId == VIRTUAL_KEYBOARD_DEVICE_ID {
+                continue;
+            }
+            if device_info.keyboardType == KeyboardType::None as i32 {
+                continue;
+            }
+            // Support Alphabetic keyboards and Non-alphabetic external keyboards
+            if device_info.external || device_info.keyboardType == KeyboardType::Alphabetic as i32 {
+                self.supported_devices.insert(device_info.deviceId);
             }
         }
         self.next.notify_devices_changed(device_infos);
@@ -122,16 +133,26 @@
     fn destroy(&mut self) {
         self.next.destroy();
     }
+
+    fn dump(&mut self, dump_str: String) -> String {
+        let mut result = "Bounce Keys filter: \n".to_string();
+        result += &format!("\tthreshold = {:?}ns\n", self.bounce_key_threshold_ns);
+        result += &format!("\tkey_event_map = {:?}\n", self.key_event_map);
+        result += &format!("\tblocked_events = {:?}\n", self.blocked_events);
+        result += &format!("\tsupported_devices = {:?}\n", self.supported_devices);
+        self.next.dump(dump_str + &result)
+    }
 }
 
 #[cfg(test)]
 mod tests {
     use crate::bounce_keys_filter::BounceKeysFilter;
-    use crate::input_filter::{test_filter::TestFilter, Filter};
+    use crate::input_filter::{test_filter::TestFilter, Filter, VIRTUAL_KEYBOARD_DEVICE_ID};
     use android_hardware_input_common::aidl::android::hardware::input::common::Source::Source;
     use com_android_server_inputflinger::aidl::com::android::server::inputflinger::{
         DeviceInfo::DeviceInfo, KeyEvent::KeyEvent, KeyEventAction::KeyEventAction,
     };
+    use input::KeyboardType;
 
     static BASE_KEY_EVENT: KeyEvent = KeyEvent {
         id: 1,
@@ -156,6 +177,7 @@
             Box::new(next.clone()),
             1,   /* device_id */
             100, /* threshold */
+            KeyboardType::Alphabetic,
         );
 
         let event = KeyEvent { action: KeyEventAction::DOWN, ..BASE_KEY_EVENT };
@@ -181,12 +203,103 @@
     }
 
     #[test]
-    fn test_is_notify_key_doesnt_block_for_internal_keyboard() {
+    fn test_is_notify_key_for_tv_remote() {
+        let mut next = TestFilter::new();
+        let mut filter = setup_filter_with_external_device(
+            Box::new(next.clone()),
+            1,   /* device_id */
+            100, /* threshold */
+            KeyboardType::NonAlphabetic,
+        );
+
+        let source = Source(Source::KEYBOARD.0 | Source::DPAD.0);
+        let event = KeyEvent { action: KeyEventAction::DOWN, source, ..BASE_KEY_EVENT };
+        filter.notify_key(&event);
+        assert_eq!(next.last_event().unwrap(), event);
+
+        let event = KeyEvent { action: KeyEventAction::UP, source, ..BASE_KEY_EVENT };
+        filter.notify_key(&event);
+        assert_eq!(next.last_event().unwrap(), event);
+
+        next.clear();
+        let event = KeyEvent { action: KeyEventAction::DOWN, source, ..BASE_KEY_EVENT };
+        filter.notify_key(&event);
+        assert!(next.last_event().is_none());
+
+        let event =
+            KeyEvent { eventTime: 100, action: KeyEventAction::UP, source, ..BASE_KEY_EVENT };
+        filter.notify_key(&event);
+        assert!(next.last_event().is_none());
+
+        let event =
+            KeyEvent { eventTime: 200, action: KeyEventAction::DOWN, source, ..BASE_KEY_EVENT };
+        filter.notify_key(&event);
+        assert_eq!(next.last_event().unwrap(), event);
+    }
+
+    #[test]
+    fn test_is_notify_key_blocks_for_internal_keyboard() {
+        let mut next = TestFilter::new();
+        let mut filter = setup_filter_with_internal_device(
+            Box::new(next.clone()),
+            1,   /* device_id */
+            100, /* threshold */
+            KeyboardType::Alphabetic,
+        );
+
+        let event = KeyEvent { action: KeyEventAction::DOWN, ..BASE_KEY_EVENT };
+        filter.notify_key(&event);
+        assert_eq!(next.last_event().unwrap(), event);
+
+        let event = KeyEvent { action: KeyEventAction::UP, ..BASE_KEY_EVENT };
+        filter.notify_key(&event);
+        assert_eq!(next.last_event().unwrap(), event);
+
+        next.clear();
+        let event = KeyEvent { action: KeyEventAction::DOWN, ..BASE_KEY_EVENT };
+        filter.notify_key(&event);
+        assert!(next.last_event().is_none());
+
+        let event = KeyEvent { eventTime: 100, action: KeyEventAction::UP, ..BASE_KEY_EVENT };
+        filter.notify_key(&event);
+        assert!(next.last_event().is_none());
+
+        let event = KeyEvent { eventTime: 200, action: KeyEventAction::DOWN, ..BASE_KEY_EVENT };
+        filter.notify_key(&event);
+        assert_eq!(next.last_event().unwrap(), event);
+    }
+
+    #[test]
+    fn test_is_notify_key_doesnt_block_for_internal_non_alphabetic_keyboard() {
         let next = TestFilter::new();
         let mut filter = setup_filter_with_internal_device(
             Box::new(next.clone()),
             1,   /* device_id */
             100, /* threshold */
+            KeyboardType::NonAlphabetic,
+        );
+
+        let event = KeyEvent { action: KeyEventAction::DOWN, ..BASE_KEY_EVENT };
+        filter.notify_key(&event);
+        assert_eq!(next.last_event().unwrap(), event);
+
+        let event = KeyEvent { action: KeyEventAction::UP, ..BASE_KEY_EVENT };
+        filter.notify_key(&event);
+        assert_eq!(next.last_event().unwrap(), event);
+
+        let event = KeyEvent { action: KeyEventAction::DOWN, ..BASE_KEY_EVENT };
+        filter.notify_key(&event);
+        assert_eq!(next.last_event().unwrap(), event);
+    }
+
+    #[test]
+    fn test_is_notify_key_doesnt_block_for_virtual_keyboard() {
+        let next = TestFilter::new();
+        let mut filter = setup_filter_with_internal_device(
+            Box::new(next.clone()),
+            VIRTUAL_KEYBOARD_DEVICE_ID, /* device_id */
+            100,                        /* threshold */
+            KeyboardType::Alphabetic,
         );
 
         let event = KeyEvent { action: KeyEventAction::DOWN, ..BASE_KEY_EVENT };
@@ -209,6 +322,7 @@
             Box::new(next.clone()),
             1,   /* device_id */
             100, /* threshold */
+            KeyboardType::NonAlphabetic,
         );
 
         let event =
@@ -233,12 +347,60 @@
         let mut filter = setup_filter_with_devices(
             Box::new(next.clone()),
             &[
-                DeviceInfo { deviceId: 1, external: true },
-                DeviceInfo { deviceId: 2, external: true },
+                DeviceInfo {
+                    deviceId: 1,
+                    external: true,
+                    keyboardType: KeyboardType::Alphabetic as i32,
+                },
+                DeviceInfo {
+                    deviceId: 2,
+                    external: true,
+                    keyboardType: KeyboardType::Alphabetic as i32,
+                },
             ],
             100, /* threshold */
         );
 
+        // Bounce key scenario on the external keyboard
+        let event = KeyEvent { deviceId: 1, action: KeyEventAction::DOWN, ..BASE_KEY_EVENT };
+        filter.notify_key(&event);
+        assert_eq!(next.last_event().unwrap(), event);
+
+        let event = KeyEvent { deviceId: 1, action: KeyEventAction::UP, ..BASE_KEY_EVENT };
+        filter.notify_key(&event);
+        assert_eq!(next.last_event().unwrap(), event);
+
+        next.clear();
+        let event = KeyEvent { deviceId: 1, action: KeyEventAction::DOWN, ..BASE_KEY_EVENT };
+        filter.notify_key(&event);
+        assert!(next.last_event().is_none());
+
+        let event = KeyEvent { deviceId: 2, action: KeyEventAction::DOWN, ..BASE_KEY_EVENT };
+        filter.notify_key(&event);
+        assert_eq!(next.last_event().unwrap(), event);
+    }
+
+    #[test]
+    fn test_is_notify_key_for_external_and_internal_alphabetic_keyboards() {
+        let mut next = TestFilter::new();
+        let mut filter = setup_filter_with_devices(
+            Box::new(next.clone()),
+            &[
+                DeviceInfo {
+                    deviceId: 1,
+                    external: false,
+                    keyboardType: KeyboardType::Alphabetic as i32,
+                },
+                DeviceInfo {
+                    deviceId: 2,
+                    external: true,
+                    keyboardType: KeyboardType::Alphabetic as i32,
+                },
+            ],
+            100, /* threshold */
+        );
+
+        // Bounce key scenario on the internal keyboard
         let event = KeyEvent { deviceId: 1, action: KeyEventAction::DOWN, ..BASE_KEY_EVENT };
         filter.notify_key(&event);
         assert_eq!(next.last_event().unwrap(), event);
@@ -261,10 +423,15 @@
         next: Box<dyn Filter + Send + Sync>,
         device_id: i32,
         threshold: i64,
+        keyboard_type: KeyboardType,
     ) -> BounceKeysFilter {
         setup_filter_with_devices(
             next,
-            &[DeviceInfo { deviceId: device_id, external: true }],
+            &[DeviceInfo {
+                deviceId: device_id,
+                external: true,
+                keyboardType: keyboard_type as i32,
+            }],
             threshold,
         )
     }
@@ -273,10 +440,15 @@
         next: Box<dyn Filter + Send + Sync>,
         device_id: i32,
         threshold: i64,
+        keyboard_type: KeyboardType,
     ) -> BounceKeysFilter {
         setup_filter_with_devices(
             next,
-            &[DeviceInfo { deviceId: device_id, external: false }],
+            &[DeviceInfo {
+                deviceId: device_id,
+                external: false,
+                keyboardType: keyboard_type as i32,
+            }],
             threshold,
         )
     }

diff --git a/services/inputflinger/rust/input_filter.rs b/services/inputflinger/rust/input_filter.rs
index 8b44af3..e221244 100644
--- a/services/inputflinger/rust/input_filter.rs
+++ b/services/inputflinger/rust/input_filter.rs

@@ -35,11 +35,15 @@
 use log::{error, info};
 use std::sync::{Arc, Mutex, RwLock};
 
+/// Virtual keyboard device ID
+pub const VIRTUAL_KEYBOARD_DEVICE_ID: i32 = -1;
+
 /// Interface for all the sub input filters
 pub trait Filter {
     fn notify_key(&mut self, event: &KeyEvent);
     fn notify_devices_changed(&mut self, device_infos: &[DeviceInfo]);
     fn destroy(&mut self);
+    fn dump(&mut self, dump_str: String) -> String;
 }
 
 struct InputFilterState {
@@ -119,18 +123,30 @@
                     self.input_filter_thread.clone(),
                 ));
                 state.enabled = true;
-                info!("Slow keys filter is installed");
+                info!(
+                    "Slow keys filter is installed, threshold = {:?}ns",
+                    config.slowKeysThresholdNs
+                );
             }
             if config.bounceKeysThresholdNs > 0 {
                 first_filter =
                     Box::new(BounceKeysFilter::new(first_filter, config.bounceKeysThresholdNs));
                 state.enabled = true;
-                info!("Bounce keys filter is installed");
+                info!(
+                    "Bounce keys filter is installed, threshold = {:?}ns",
+                    config.bounceKeysThresholdNs
+                );
             }
             state.first_filter = first_filter;
         }
         Result::Ok(())
     }
+
+    fn dumpFilter(&self) -> binder::Result<String> {
+        let first_filter = &mut self.state.lock().unwrap().first_filter;
+        let dump_str = first_filter.dump(String::new());
+        Result::Ok(dump_str)
+    }
 }
 
 struct BaseFilter {
@@ -158,6 +174,11 @@
     fn destroy(&mut self) {
         // do nothing
     }
+
+    fn dump(&mut self, dump_str: String) -> String {
+        // do nothing
+        dump_str
+    }
 }
 
 /// This struct wraps around IInputFilterCallbacks restricting access to only
@@ -214,6 +235,7 @@
         InputFilterConfiguration::InputFilterConfiguration, KeyEvent::KeyEvent,
         KeyEventAction::KeyEventAction,
     };
+    use input::KeyboardType;
     use std::sync::{Arc, RwLock};
 
     #[test]
@@ -256,7 +278,11 @@
             Arc::new(RwLock::new(Strong::new(Box::new(test_callbacks)))),
         );
         assert!(input_filter
-            .notifyInputDevicesChanged(&[DeviceInfo { deviceId: 0, external: true }])
+            .notifyInputDevicesChanged(&[DeviceInfo {
+                deviceId: 0,
+                external: true,
+                keyboardType: KeyboardType::None as i32
+            }])
             .is_ok());
         assert!(test_filter.is_device_changed_called());
     }
@@ -389,6 +415,10 @@
         fn destroy(&mut self) {
             self.inner().is_destroy_called = true;
         }
+        fn dump(&mut self, dump_str: String) -> String {
+            // do nothing
+            dump_str
+        }
     }
 }
 

diff --git a/services/inputflinger/rust/slow_keys_filter.rs b/services/inputflinger/rust/slow_keys_filter.rs
index 0f18a2f..8830aac 100644
--- a/services/inputflinger/rust/slow_keys_filter.rs
+++ b/services/inputflinger/rust/slow_keys_filter.rs

@@ -18,12 +18,13 @@
 //! Slow keys is an accessibility feature to aid users who have physical disabilities, that allows
 //! the user to specify the duration for which one must press-and-hold a key before the system
 //! accepts the keypress.
-use crate::input_filter::Filter;
+use crate::input_filter::{Filter, VIRTUAL_KEYBOARD_DEVICE_ID};
 use crate::input_filter_thread::{InputFilterThread, ThreadCallback};
 use android_hardware_input_common::aidl::android::hardware::input::common::Source::Source;
 use com_android_server_inputflinger::aidl::com::android::server::inputflinger::{
     DeviceInfo::DeviceInfo, KeyEvent::KeyEvent, KeyEventAction::KeyEventAction,
 };
+use input::KeyboardType;
 use log::debug;
 use std::collections::HashSet;
 use std::sync::{Arc, RwLock, RwLockReadGuard, RwLockWriteGuard};
@@ -41,7 +42,7 @@
 struct SlowKeysFilterInner {
     next: Box<dyn Filter + Send + Sync>,
     slow_key_threshold_ns: i64,
-    external_devices: HashSet<i32>,
+    supported_devices: HashSet<i32>,
     // This tracks KeyEvents that are blocked by Slow keys filter and will be passed through if the
     // press duration exceeds the slow keys threshold.
     pending_down_events: Vec<KeyEvent>,
@@ -65,7 +66,7 @@
         let filter = Self(Arc::new(RwLock::new(SlowKeysFilterInner {
             next,
             slow_key_threshold_ns,
-            external_devices: HashSet::new(),
+            supported_devices: HashSet::new(),
             pending_down_events: Vec::new(),
             ongoing_down_events: Vec::new(),
             input_filter_thread: input_filter_thread.clone(),
@@ -98,8 +99,8 @@
         {
             // acquire write lock
             let mut slow_filter = self.write_inner();
-            if !(slow_filter.external_devices.contains(&event.deviceId)
-                && event.source == Source::KEYBOARD)
+            if !(slow_filter.supported_devices.contains(&event.deviceId)
+                && event.source.0 & Source::KEYBOARD.0 != 0)
             {
                 slow_filter.next.notify_key(event);
                 return;
@@ -164,10 +165,17 @@
         slow_filter
             .ongoing_down_events
             .retain(|event| device_infos.iter().any(|x| event.device_id == x.deviceId));
-        slow_filter.external_devices.clear();
+        slow_filter.supported_devices.clear();
         for device_info in device_infos {
-            if device_info.external {
-                slow_filter.external_devices.insert(device_info.deviceId);
+            if device_info.deviceId == VIRTUAL_KEYBOARD_DEVICE_ID {
+                continue;
+            }
+            if device_info.keyboardType == KeyboardType::None as i32 {
+                continue;
+            }
+            // Support Alphabetic keyboards and Non-alphabetic external keyboards
+            if device_info.external || device_info.keyboardType == KeyboardType::Alphabetic as i32 {
+                slow_filter.supported_devices.insert(device_info.deviceId);
             }
         }
         slow_filter.next.notify_devices_changed(device_infos);
@@ -178,6 +186,16 @@
         slow_filter.input_filter_thread.unregister_thread_callback(Box::new(self.clone()));
         slow_filter.next.destroy();
     }
+
+    fn dump(&mut self, dump_str: String) -> String {
+        let mut slow_filter = self.write_inner();
+        let mut result = "Slow Keys filter: \n".to_string();
+        result += &format!("\tthreshold = {:?}ns\n", slow_filter.slow_key_threshold_ns);
+        result += &format!("\tongoing_down_events = {:?}\n", slow_filter.ongoing_down_events);
+        result += &format!("\tpending_down_events = {:?}\n", slow_filter.pending_down_events);
+        result += &format!("\tsupported_devices = {:?}\n", slow_filter.supported_devices);
+        slow_filter.next.dump(dump_str + &result)
+    }
 }
 
 impl ThreadCallback for SlowKeysFilter {
@@ -217,6 +235,7 @@
     use com_android_server_inputflinger::aidl::com::android::server::inputflinger::{
         DeviceInfo::DeviceInfo, KeyEvent::KeyEvent, KeyEventAction::KeyEventAction,
     };
+    use input::KeyboardType;
     use nix::{sys::time::TimeValLike, time::clock_gettime, time::ClockId};
     use std::sync::{Arc, RwLock};
     use std::time::Duration;
@@ -240,7 +259,7 @@
     static SLOW_KEYS_THRESHOLD_NS: i64 = 100 * 1000000; // 100 ms
 
     #[test]
-    fn test_is_notify_key_for_internal_keyboard_not_blocked() {
+    fn test_is_notify_key_for_internal_non_alphabetic_keyboard_not_blocked() {
         let test_callbacks = TestCallbacks::new();
         let test_thread = get_thread(test_callbacks.clone());
         let next = TestFilter::new();
@@ -249,6 +268,7 @@
             test_thread.clone(),
             1, /* device_id */
             SLOW_KEYS_THRESHOLD_NS,
+            KeyboardType::NonAlphabetic,
         );
 
         let event = KeyEvent { action: KeyEventAction::DOWN, ..BASE_KEY_EVENT };
@@ -266,6 +286,7 @@
             test_thread.clone(),
             1, /* device_id */
             SLOW_KEYS_THRESHOLD_NS,
+            KeyboardType::NonAlphabetic,
         );
 
         let event =
@@ -275,6 +296,115 @@
     }
 
     #[test]
+    fn test_notify_key_for_tv_remote_when_key_pressed_for_threshold_time() {
+        let test_callbacks = TestCallbacks::new();
+        let test_thread = get_thread(test_callbacks.clone());
+        let next = TestFilter::new();
+        let mut filter = setup_filter_with_external_device(
+            Box::new(next.clone()),
+            test_thread.clone(),
+            1, /* device_id */
+            SLOW_KEYS_THRESHOLD_NS,
+            KeyboardType::NonAlphabetic,
+        );
+        let down_time = clock_gettime(ClockId::CLOCK_MONOTONIC).unwrap().num_nanoseconds();
+        let source = Source(Source::KEYBOARD.0 | Source::DPAD.0);
+        filter.notify_key(&KeyEvent {
+            action: KeyEventAction::DOWN,
+            downTime: down_time,
+            eventTime: down_time,
+            source,
+            ..BASE_KEY_EVENT
+        });
+        assert!(next.last_event().is_none());
+
+        std::thread::sleep(Duration::from_nanos(2 * SLOW_KEYS_THRESHOLD_NS as u64));
+        assert_eq!(
+            next.last_event().unwrap(),
+            KeyEvent {
+                action: KeyEventAction::DOWN,
+                downTime: down_time + SLOW_KEYS_THRESHOLD_NS,
+                eventTime: down_time + SLOW_KEYS_THRESHOLD_NS,
+                source,
+                policyFlags: POLICY_FLAG_DISABLE_KEY_REPEAT,
+                ..BASE_KEY_EVENT
+            }
+        );
+
+        let up_time = clock_gettime(ClockId::CLOCK_MONOTONIC).unwrap().num_nanoseconds();
+        filter.notify_key(&KeyEvent {
+            action: KeyEventAction::UP,
+            downTime: down_time,
+            eventTime: up_time,
+            source,
+            ..BASE_KEY_EVENT
+        });
+
+        assert_eq!(
+            next.last_event().unwrap(),
+            KeyEvent {
+                action: KeyEventAction::UP,
+                downTime: down_time + SLOW_KEYS_THRESHOLD_NS,
+                eventTime: up_time,
+                source,
+                ..BASE_KEY_EVENT
+            }
+        );
+    }
+
+    #[test]
+    fn test_notify_key_for_internal_alphabetic_keyboard_when_key_pressed_for_threshold_time() {
+        let test_callbacks = TestCallbacks::new();
+        let test_thread = get_thread(test_callbacks.clone());
+        let next = TestFilter::new();
+        let mut filter = setup_filter_with_internal_device(
+            Box::new(next.clone()),
+            test_thread.clone(),
+            1, /* device_id */
+            SLOW_KEYS_THRESHOLD_NS,
+            KeyboardType::Alphabetic,
+        );
+        let down_time = clock_gettime(ClockId::CLOCK_MONOTONIC).unwrap().num_nanoseconds();
+        filter.notify_key(&KeyEvent {
+            action: KeyEventAction::DOWN,
+            downTime: down_time,
+            eventTime: down_time,
+            ..BASE_KEY_EVENT
+        });
+        assert!(next.last_event().is_none());
+
+        std::thread::sleep(Duration::from_nanos(2 * SLOW_KEYS_THRESHOLD_NS as u64));
+        assert_eq!(
+            next.last_event().unwrap(),
+            KeyEvent {
+                action: KeyEventAction::DOWN,
+                downTime: down_time + SLOW_KEYS_THRESHOLD_NS,
+                eventTime: down_time + SLOW_KEYS_THRESHOLD_NS,
+                policyFlags: POLICY_FLAG_DISABLE_KEY_REPEAT,
+                ..BASE_KEY_EVENT
+            }
+        );
+
+        let up_time = clock_gettime(ClockId::CLOCK_MONOTONIC).unwrap().num_nanoseconds();
+        filter.notify_key(&KeyEvent {
+            action: KeyEventAction::UP,
+            downTime: down_time,
+            eventTime: up_time,
+            ..BASE_KEY_EVENT
+        });
+
+        assert_eq!(
+            next.last_event().unwrap(),
+            KeyEvent {
+                action: KeyEventAction::UP,
+                downTime: down_time + SLOW_KEYS_THRESHOLD_NS,
+                eventTime: up_time,
+                ..BASE_KEY_EVENT
+            }
+        );
+    }
+
+    #[test]
     fn test_notify_key_for_external_keyboard_when_key_pressed_for_threshold_time() {
         let test_callbacks = TestCallbacks::new();
         let test_thread = get_thread(test_callbacks.clone());
@@ -284,6 +414,7 @@
             test_thread.clone(),
             1, /* device_id */
             SLOW_KEYS_THRESHOLD_NS,
+            KeyboardType::Alphabetic,
         );
         let down_time = clock_gettime(ClockId::CLOCK_MONOTONIC).unwrap().num_nanoseconds();
         filter.notify_key(&KeyEvent {
@@ -335,6 +466,7 @@
             test_thread.clone(),
             1, /* device_id */
             SLOW_KEYS_THRESHOLD_NS,
+            KeyboardType::Alphabetic,
         );
         let mut now = clock_gettime(ClockId::CLOCK_MONOTONIC).unwrap().num_nanoseconds();
         filter.notify_key(&KeyEvent {
@@ -367,6 +499,7 @@
             test_thread.clone(),
             1, /* device_id */
             SLOW_KEYS_THRESHOLD_NS,
+            KeyboardType::Alphabetic,
         );
 
         let now = clock_gettime(ClockId::CLOCK_MONOTONIC).unwrap().num_nanoseconds();
@@ -388,11 +521,16 @@
         test_thread: InputFilterThread,
         device_id: i32,
         threshold: i64,
+        keyboard_type: KeyboardType,
     ) -> SlowKeysFilter {
         setup_filter_with_devices(
             next,
             test_thread,
-            &[DeviceInfo { deviceId: device_id, external: true }],
+            &[DeviceInfo {
+                deviceId: device_id,
+                external: true,
+                keyboardType: keyboard_type as i32,
+            }],
             threshold,
         )
     }
@@ -402,11 +540,16 @@
         test_thread: InputFilterThread,
         device_id: i32,
         threshold: i64,
+        keyboard_type: KeyboardType,
     ) -> SlowKeysFilter {
         setup_filter_with_devices(
             next,
             test_thread,
-            &[DeviceInfo { deviceId: device_id, external: false }],
+            &[DeviceInfo {
+                deviceId: device_id,
+                external: false,
+                keyboardType: keyboard_type as i32,
+            }],
             threshold,
         )
     }

diff --git a/services/inputflinger/rust/sticky_keys_filter.rs b/services/inputflinger/rust/sticky_keys_filter.rs
index 6c7c7fb..161a5fc 100644
--- a/services/inputflinger/rust/sticky_keys_filter.rs
+++ b/services/inputflinger/rust/sticky_keys_filter.rs

@@ -134,6 +134,14 @@
     fn destroy(&mut self) {
         self.next.destroy();
     }
+
+    fn dump(&mut self, dump_str: String) -> String {
+        let mut result = "Sticky Keys filter: \n".to_string();
+        result += &format!("\tmodifier_state = {:?}\n", self.modifier_state);
+        result += &format!("\tlocked_modifier_state = {:?}\n", self.locked_modifier_state);
+        result += &format!("\tcontributing_devices = {:?}\n", self.contributing_devices);
+        self.next.dump(dump_str + &result)
+    }
 }
 
 fn is_modifier_key(keycode: i32) -> bool {
@@ -235,6 +243,7 @@
         DeviceInfo::DeviceInfo, IInputFilter::IInputFilterCallbacks::IInputFilterCallbacks,
         KeyEvent::KeyEvent, KeyEventAction::KeyEventAction,
     };
+    use input::KeyboardType;
     use input::ModifierState;
     use std::sync::{Arc, RwLock};
 
@@ -496,7 +505,11 @@
             ..BASE_KEY_UP
         });
 
-        sticky_keys_filter.notify_devices_changed(&[DeviceInfo { deviceId: 2, external: true }]);
+        sticky_keys_filter.notify_devices_changed(&[DeviceInfo {
+            deviceId: 2,
+            external: true,
+            keyboardType: KeyboardType::Alphabetic as i32,
+        }]);
         assert_eq!(
             test_callbacks.get_last_modifier_state(),
             ModifierState::CtrlLeftOn | ModifierState::CtrlOn

diff --git a/services/inputflinger/tests/CapturedTouchpadEventConverter_test.cpp b/services/inputflinger/tests/CapturedTouchpadEventConverter_test.cpp
index b738abf..d39ad3f 100644
--- a/services/inputflinger/tests/CapturedTouchpadEventConverter_test.cpp
+++ b/services/inputflinger/tests/CapturedTouchpadEventConverter_test.cpp

@@ -20,6 +20,7 @@
 #include <memory>
 
 #include <EventHub.h>
+#include <com_android_input_flags.h>
 #include <gtest/gtest.h>
 #include <linux/input-event-codes.h>
 #include <linux/input.h>
@@ -32,9 +33,14 @@
 #include "TestEventMatchers.h"
 #include "TestInputListener.h"
 
+namespace input_flags = com::android::input::flags;
+
 namespace android {
 
 using testing::AllOf;
+using testing::Each;
+using testing::ElementsAre;
+using testing::VariantWith;
 
 class CapturedTouchpadEventConverterTest : public testing::Test {
 public:
@@ -44,6 +50,8 @@
             mReader(mFakeEventHub, mFakePolicy, mFakeListener),
             mDevice(newDevice()),
             mDeviceContext(*mDevice, EVENTHUB_ID) {
+        input_flags::include_relative_axis_values_for_captured_touchpads(true);
+
         const size_t slotCount = 8;
         mFakeEventHub->addAbsoluteAxis(EVENTHUB_ID, ABS_MT_SLOT, 0, slotCount - 1, 0, 0, 0);
         mAccumulator.configure(mDeviceContext, slotCount, /*usingSlotsProtocol=*/true);
@@ -123,7 +131,7 @@
 
 TEST_F(CapturedTouchpadEventConverterTest, MotionRanges_allAxesPresent_populatedCorrectly) {
     mFakeEventHub->addAbsoluteAxis(EVENTHUB_ID, ABS_MT_POSITION_X, 0, 4000, 0, 0, 45);
-    mFakeEventHub->addAbsoluteAxis(EVENTHUB_ID, ABS_MT_POSITION_Y, 0, 2500, 0, 0, 40);
+    mFakeEventHub->addAbsoluteAxis(EVENTHUB_ID, ABS_MT_POSITION_Y, -500, 2000, 0, 0, 40);
     mFakeEventHub->addAbsoluteAxis(EVENTHUB_ID, ABS_MT_TOUCH_MAJOR, 0, 1100, 0, 0, 35);
     mFakeEventHub->addAbsoluteAxis(EVENTHUB_ID, ABS_MT_TOUCH_MINOR, 0, 1000, 0, 0, 30);
     mFakeEventHub->addAbsoluteAxis(EVENTHUB_ID, ABS_MT_WIDTH_MAJOR, 0, 900, 0, 0, 25);
@@ -147,8 +155,8 @@
     const InputDeviceInfo::MotionRange* posY =
             info.getMotionRange(AMOTION_EVENT_AXIS_Y, AINPUT_SOURCE_TOUCHPAD);
     ASSERT_NE(nullptr, posY);
-    EXPECT_NEAR(0, posY->min, EPSILON);
-    EXPECT_NEAR(2500, posY->max, EPSILON);
+    EXPECT_NEAR(-500, posY->min, EPSILON);
+    EXPECT_NEAR(2000, posY->max, EPSILON);
     EXPECT_NEAR(40, posY->resolution, EPSILON);
 
     const InputDeviceInfo::MotionRange* touchMajor =
@@ -179,8 +187,22 @@
     EXPECT_NEAR(800, toolMinor->max, EPSILON);
     EXPECT_NEAR(20, toolMinor->resolution, EPSILON);
 
-    // ...except orientation and pressure, which get scaled, and size, which is generated from other
-    // values.
+    // ...except for the relative motion axes, derived from the corresponding absolute ones:
+    const InputDeviceInfo::MotionRange* relX =
+            info.getMotionRange(AMOTION_EVENT_AXIS_RELATIVE_X, AINPUT_SOURCE_TOUCHPAD);
+    ASSERT_NE(nullptr, relX);
+    EXPECT_NEAR(-4000, relX->min, EPSILON);
+    EXPECT_NEAR(4000, relX->max, EPSILON);
+    EXPECT_NEAR(45, relX->resolution, EPSILON);
+
+    const InputDeviceInfo::MotionRange* relY =
+            info.getMotionRange(AMOTION_EVENT_AXIS_RELATIVE_Y, AINPUT_SOURCE_TOUCHPAD);
+    ASSERT_NE(nullptr, relY);
+    EXPECT_NEAR(-2500, relY->min, EPSILON);
+    EXPECT_NEAR(2500, relY->max, EPSILON);
+    EXPECT_NEAR(40, relY->resolution, EPSILON);
+
+    // ...orientation and pressure, which get scaled:
     const InputDeviceInfo::MotionRange* orientation =
             info.getMotionRange(AMOTION_EVENT_AXIS_ORIENTATION, AINPUT_SOURCE_TOUCHPAD);
     ASSERT_NE(nullptr, orientation);
@@ -195,6 +217,7 @@
     EXPECT_NEAR(1, pressure->max, EPSILON);
     EXPECT_NEAR(0, pressure->resolution, EPSILON);
 
+    // ... and size, which is generated from other values.
     const InputDeviceInfo::MotionRange* size =
             info.getMotionRange(AMOTION_EVENT_AXIS_SIZE, AINPUT_SOURCE_TOUCHPAD);
     ASSERT_NE(nullptr, size);
@@ -216,7 +239,9 @@
     // present, since it's generated from axes that aren't provided by this device).
     EXPECT_NE(nullptr, info.getMotionRange(AMOTION_EVENT_AXIS_X, AINPUT_SOURCE_TOUCHPAD));
     EXPECT_NE(nullptr, info.getMotionRange(AMOTION_EVENT_AXIS_Y, AINPUT_SOURCE_TOUCHPAD));
-    EXPECT_EQ(2u, info.getMotionRanges().size());
+    EXPECT_NE(nullptr, info.getMotionRange(AMOTION_EVENT_AXIS_RELATIVE_X, AINPUT_SOURCE_TOUCHPAD));
+    EXPECT_NE(nullptr, info.getMotionRange(AMOTION_EVENT_AXIS_RELATIVE_Y, AINPUT_SOURCE_TOUCHPAD));
+    EXPECT_EQ(4u, info.getMotionRanges().size());
 }
 
 TEST_F(CapturedTouchpadEventConverterTest, OneFinger_motionReportedCorrectly) {
@@ -232,28 +257,31 @@
 
     EXPECT_THAT(processSyncAndExpectSingleMotionArg(conv),
                 AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN), WithPointerCount(1u),
-                      WithCoords(50, 100), WithToolType(ToolType::FINGER)));
+                      WithCoords(50, 100), WithRelativeMotion(0, 0),
+                      WithToolType(ToolType::FINGER)));
 
     processAxis(conv, EV_ABS, ABS_MT_POSITION_X, 52);
     processAxis(conv, EV_ABS, ABS_MT_POSITION_Y, 99);
 
     EXPECT_THAT(processSyncAndExpectSingleMotionArg(conv),
                 AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithPointerCount(1u),
-                      WithCoords(52, 99), WithToolType(ToolType::FINGER)));
+                      WithCoords(52, 99), WithRelativeMotion(2, -1),
+                      WithToolType(ToolType::FINGER)));
 
     processAxis(conv, EV_ABS, ABS_MT_TRACKING_ID, -1);
     processAxis(conv, EV_KEY, BTN_TOUCH, 0);
     processAxis(conv, EV_KEY, BTN_TOOL_FINGER, 0);
 
     std::list<NotifyArgs> args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithPointerCount(1u),
-                      WithCoords(52, 99), WithToolType(ToolType::FINGER)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithPointerCount(1u),
-                      WithCoords(52, 99), WithToolType(ToolType::FINGER)));
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_MOVE)),
+                            VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_UP))));
+    EXPECT_THAT(args,
+                Each(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithCoords(52, 99), WithRelativeMotion(0, 0), WithPointerCount(1u),
+                              WithToolType(ToolType::FINGER)))));
 }
 
 TEST_F(CapturedTouchpadEventConverterTest, OneFinger_touchDimensionsPassedThrough) {
@@ -504,13 +532,13 @@
 
     EXPECT_THAT(processSyncAndExpectSingleMotionArg(conv),
                 AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN), WithPointerCount(1u),
-                      WithCoords(51, 100)));
+                      WithCoords(51, 100), WithRelativeMotion(0, 0)));
 
     processAxis(conv, EV_ABS, ABS_MT_POSITION_X, 52);
 
     EXPECT_THAT(processSyncAndExpectSingleMotionArg(conv),
                 AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithPointerCount(1u),
-                      WithCoords(52, 100)));
+                      WithCoords(52, 100), WithRelativeMotion(1, 0)));
 }
 
 TEST_F(CapturedTouchpadEventConverterTest, FingerArrivingAfterPalm_onlyFingerReported) {
@@ -550,7 +578,7 @@
 
     EXPECT_THAT(processSyncAndExpectSingleMotionArg(conv),
                 AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithPointerCount(1u),
-                      WithCoords(98, 148)));
+                      WithCoords(98, 148), WithRelativeMotion(-2, -2)));
 }
 
 TEST_F(CapturedTouchpadEventConverterTest, FingerAndFingerTurningIntoPalm_partiallyCancelled) {
@@ -572,17 +600,17 @@
     processAxis(conv, EV_KEY, BTN_TOUCH, 1);
     processAxis(conv, EV_KEY, BTN_TOOL_DOUBLETAP, 1);
 
-    std::list<NotifyArgs> args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN), WithPointerCount(1u),
-                      WithToolType(ToolType::FINGER)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_DOWN |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithPointerCount(2u), WithPointerToolType(0, ToolType::FINGER),
-                      WithPointerToolType(1, ToolType::FINGER)));
+    EXPECT_THAT(processSync(conv),
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
+                                          WithPointerCount(1u), WithToolType(ToolType::FINGER))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_DOWN |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithPointerCount(2u),
+                                          WithPointerToolType(0, ToolType::FINGER),
+                                          WithPointerToolType(1, ToolType::FINGER)))));
 
     processAxis(conv, EV_ABS, ABS_MT_SLOT, 0);
     processAxis(conv, EV_ABS, ABS_MT_POSITION_X, 51);
@@ -591,15 +619,16 @@
     processAxis(conv, EV_ABS, ABS_MT_POSITION_X, 251);
     processAxis(conv, EV_ABS, ABS_MT_TOOL_TYPE, MT_TOOL_PALM);
 
-    args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithPointerCount(2u)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithFlags(AMOTION_EVENT_FLAG_CANCELED), WithPointerCount(2u)));
+    std::list<NotifyArgs> args = processSync(conv);
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_MOVE)),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithFlags(AMOTION_EVENT_FLAG_CANCELED)))));
+    EXPECT_THAT(args, Each(VariantWith<NotifyMotionArgs>(WithPointerCount(2u))));
 }
 
 TEST_F(CapturedTouchpadEventConverterTest, FingerAndPalmTurningIntoFinger_reported) {
@@ -632,15 +661,15 @@
     processAxis(conv, EV_ABS, ABS_MT_POSITION_X, 251);
     processAxis(conv, EV_ABS, ABS_MT_TOOL_TYPE, MT_TOOL_FINGER);
 
-    std::list<NotifyArgs> args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithPointerCount(1u)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_DOWN |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithPointerCount(2u)));
+    EXPECT_THAT(processSync(conv),
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE),
+                                          WithPointerCount(1u))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_DOWN |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithPointerCount(2u)))));
 }
 
 TEST_F(CapturedTouchpadEventConverterTest, TwoFingers_motionReportedCorrectly) {
@@ -656,7 +685,8 @@
 
     EXPECT_THAT(processSyncAndExpectSingleMotionArg(conv),
                 AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN), WithPointerCount(1u),
-                      WithCoords(50, 100), WithToolType(ToolType::FINGER)));
+                      WithCoords(50, 100), WithRelativeMotion(0, 0),
+                      WithToolType(ToolType::FINGER)));
 
     processAxis(conv, EV_ABS, ABS_MT_SLOT, 0);
     processAxis(conv, EV_ABS, ABS_MT_POSITION_X, 52);
@@ -670,18 +700,22 @@
     processAxis(conv, EV_KEY, BTN_TOOL_FINGER, 0);
     processAxis(conv, EV_KEY, BTN_TOOL_DOUBLETAP, 1);
 
-    std::list<NotifyArgs> args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithPointerCount(1u),
-                      WithCoords(52, 99), WithToolType(ToolType::FINGER)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_DOWN |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithPointerCount(2u), WithPointerCoords(0, 52, 99),
-                      WithPointerCoords(1, 250, 200), WithPointerToolType(0, ToolType::FINGER),
-                      WithPointerToolType(1, ToolType::FINGER)));
+    EXPECT_THAT(processSync(conv),
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE),
+                                          WithPointerCount(1u), WithCoords(52, 99),
+                                          WithRelativeMotion(2, -1),
+                                          WithToolType(ToolType::FINGER))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_DOWN |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithPointerCount(2u), WithPointerCoords(0, 52, 99),
+                                          WithPointerRelativeMotion(0, 0, 0),
+                                          WithPointerCoords(1, 250, 200),
+                                          WithPointerRelativeMotion(1, 0, 0),
+                                          WithPointerToolType(0, ToolType::FINGER),
+                                          WithPointerToolType(1, ToolType::FINGER)))));
 
     processAxis(conv, EV_ABS, ABS_MT_SLOT, 0);
     processAxis(conv, EV_ABS, ABS_MT_TRACKING_ID, -1);
@@ -692,34 +726,96 @@
     processAxis(conv, EV_KEY, BTN_TOOL_FINGER, 1);
     processAxis(conv, EV_KEY, BTN_TOOL_DOUBLETAP, 0);
 
-    args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithPointerCount(2u),
-                      WithPointerCoords(0, 52, 99), WithPointerCoords(1, 255, 202),
-                      WithPointerToolType(1, ToolType::FINGER),
-                      WithPointerToolType(0, ToolType::FINGER)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       0 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithPointerCount(2u), WithPointerCoords(0, 52, 99),
-                      WithPointerCoords(1, 255, 202), WithPointerToolType(0, ToolType::FINGER),
-                      WithPointerToolType(1, ToolType::FINGER)));
+    std::list<NotifyArgs> args = processSync(conv);
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE),
+                                          WithPointerRelativeMotion(1, 5, 2))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  0 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithPointerRelativeMotion(1, 0, 0)))));
+    EXPECT_THAT(args,
+                Each(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithPointerCount(2u), WithPointerCoords(0, 52, 99),
+                              WithPointerRelativeMotion(0, 0, 0), WithPointerCoords(1, 255, 202),
+                              WithPointerToolType(1, ToolType::FINGER),
+                              WithPointerToolType(0, ToolType::FINGER)))));
 
     processAxis(conv, EV_ABS, ABS_MT_TRACKING_ID, -1);
     processAxis(conv, EV_KEY, BTN_TOOL_FINGER, 0);
     processAxis(conv, EV_KEY, BTN_TOUCH, 0);
 
     args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_MOVE)),
+                            VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_UP))));
+    EXPECT_THAT(args,
+                Each(VariantWith<NotifyMotionArgs>(AllOf(WithPointerCount(1u), WithCoords(255, 202),
+                                                         WithPointerRelativeMotion(1, 0, 0),
+                                                         WithToolType(ToolType::FINGER)))));
+}
+
+TEST_F(CapturedTouchpadEventConverterTest, RelativeMotionAxesClearedForNewFingerInSlot) {
+    CapturedTouchpadEventConverter conv = createConverter();
+    // Put down one finger.
+    processAxis(conv, EV_ABS, ABS_MT_SLOT, 0);
+    processAxis(conv, EV_ABS, ABS_MT_TRACKING_ID, 1);
+    processAxis(conv, EV_ABS, ABS_MT_POSITION_X, 50);
+    processAxis(conv, EV_ABS, ABS_MT_POSITION_Y, 100);
+
+    processAxis(conv, EV_KEY, BTN_TOUCH, 1);
+    processAxis(conv, EV_KEY, BTN_TOOL_FINGER, 1);
+
+    EXPECT_THAT(processSyncAndExpectSingleMotionArg(conv),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN), WithPointerCount(1u),
+                      WithCoords(50, 100), WithRelativeMotion(0, 0)));
+
+    // Move it in negative X and Y directions.
+    processAxis(conv, EV_ABS, ABS_MT_POSITION_X, 47);
+    processAxis(conv, EV_ABS, ABS_MT_POSITION_Y, 97);
+
+    EXPECT_THAT(processSyncAndExpectSingleMotionArg(conv),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithCoords(47, 97),
+                      WithRelativeMotion(-3, -3)));
+
+    // Lift it.
+    processAxis(conv, EV_ABS, ABS_MT_TRACKING_ID, -1);
+    processAxis(conv, EV_KEY, BTN_TOUCH, 0);
+    processAxis(conv, EV_KEY, BTN_TOOL_FINGER, 0);
+
+    std::list<NotifyArgs> args = processSync(conv);
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_MOVE)),
+                            VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_UP))));
+    EXPECT_THAT(args,
+                Each(VariantWith<NotifyMotionArgs>(AllOf(WithCoords(47, 97),
+                                                         WithRelativeMotion(0, 0),
+                                                         WithPointerCount(1u)))));
+
+    // Put down another finger using the same slot. Relative axis values should be cleared.
+    processAxis(conv, EV_ABS, ABS_MT_TRACKING_ID, 2);
+    processAxis(conv, EV_ABS, ABS_MT_POSITION_X, 60);
+    processAxis(conv, EV_ABS, ABS_MT_POSITION_Y, 60);
+
+    processAxis(conv, EV_KEY, BTN_TOUCH, 1);
+    processAxis(conv, EV_KEY, BTN_TOOL_FINGER, 1);
+
+    EXPECT_THAT(processSyncAndExpectSingleMotionArg(conv),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN), WithPointerCount(1u),
+                      WithCoords(60, 60), WithRelativeMotion(0, 0)));
+
+    processAxis(conv, EV_ABS, ABS_MT_POSITION_X, 64);
+    processAxis(conv, EV_ABS, ABS_MT_POSITION_Y, 58);
+
+    EXPECT_THAT(processSyncAndExpectSingleMotionArg(conv),
                 AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithPointerCount(1u),
-                      WithCoords(255, 202), WithToolType(ToolType::FINGER)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithPointerCount(1u),
-                      WithCoords(255, 202), WithToolType(ToolType::FINGER)));
+                      WithCoords(64, 58), WithRelativeMotion(4, -2)));
 }
 
 // Pointer IDs max out at 31, and so must be reused once a touch is lifted to avoid running out.
@@ -737,17 +833,18 @@
     processAxis(conv, EV_KEY, BTN_TOUCH, 1);
     processAxis(conv, EV_KEY, BTN_TOOL_DOUBLETAP, 1);
 
-    std::list<NotifyArgs> args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN), WithPointerCount(1u),
-                      WithPointerId(/*index=*/0, /*id=*/0)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_DOWN |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithPointerCount(2u), WithPointerId(/*index=*/0, /*id=*/0),
-                      WithPointerId(/*index=*/1, /*id=*/1)));
+    EXPECT_THAT(processSync(conv),
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
+                                          WithPointerCount(1u),
+                                          WithPointerId(/*index=*/0, /*id=*/0))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_DOWN |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithPointerCount(2u),
+                                          WithPointerId(/*index=*/0, /*id=*/0),
+                                          WithPointerId(/*index=*/1, /*id=*/1)))));
 
     // Lift the finger in slot 0, freeing up pointer ID 0...
     processAxis(conv, EV_ABS, ABS_MT_SLOT, 0);
@@ -758,27 +855,30 @@
     processAxis(conv, EV_ABS, ABS_MT_TRACKING_ID, 3);
     processAxis(conv, EV_ABS, ABS_MT_POSITION_X, 30);
 
-    args = processSync(conv);
-    ASSERT_EQ(3u, args.size());
+    std::list<NotifyArgs> args = processSync(conv);
     // Slot 1 being present will result in a MOVE event, even though it hasn't actually moved (see
     // comments in CapturedTouchpadEventConverter::sync).
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithPointerCount(2u),
-                      WithPointerId(/*index=*/0, /*id=*/0), WithPointerId(/*index=*/1, /*id=*/1)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       0 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithPointerCount(2u), WithPointerId(/*index=*/0, /*id=*/0),
-                      WithPointerId(/*index=*/1, /*id=*/1)));
-    args.pop_front();
-    // Slot 0 being lifted causes the finger from slot 1 to move up to index 0, but keep its
-    // previous ID. The new finger in slot 2 should take ID 0, which was just freed up.
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_DOWN |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithPointerCount(2u), WithPointerId(/*index=*/0, /*id=*/1),
-                      WithPointerId(/*index=*/1, /*id=*/0)));
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE),
+                                          WithPointerId(/*index=*/0, /*id=*/0),
+                                          WithPointerId(/*index=*/1, /*id=*/1))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  0 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithPointerId(/*index=*/0, /*id=*/0),
+                                          WithPointerId(/*index=*/1, /*id=*/1))),
+                            // Slot 0 being lifted causes the finger from slot 1 to move up to index
+                            // 0, but keep its previous ID. The new finger in slot 2 should take ID
+                            // 0, which was just freed up.
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_DOWN |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithPointerId(/*index=*/0, /*id=*/1),
+                                          WithPointerId(/*index=*/1, /*id=*/0)))));
+    EXPECT_THAT(args, Each(VariantWith<NotifyMotionArgs>(WithPointerCount(2u))));
 }
 
 // Motion events without any pointers are invalid, so when a button press is reported in the same
@@ -797,33 +897,30 @@
 
     processAxis(conv, EV_KEY, BTN_LEFT, 1);
 
-    std::list<NotifyArgs> args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                WithMotionAction(AMOTION_EVENT_ACTION_DOWN));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS), WithPointerCount(1u),
-                      WithCoords(50, 100), WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY)));
+    EXPECT_THAT(processSync(conv),
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_DOWN)),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
+                                          WithPointerCount(1u), WithCoords(50, 100),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY)))));
 
     processAxis(conv, EV_ABS, ABS_MT_TRACKING_ID, -1);
     processAxis(conv, EV_KEY, BTN_TOUCH, 0);
     processAxis(conv, EV_KEY, BTN_TOOL_FINGER, 0);
 
     processAxis(conv, EV_KEY, BTN_LEFT, 0);
-    args = processSync(conv);
-    ASSERT_EQ(3u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                WithMotionAction(AMOTION_EVENT_ACTION_MOVE));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE), WithPointerCount(1u),
-                      WithCoords(50, 100), WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithButtonState(0)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                WithMotionAction(AMOTION_EVENT_ACTION_UP));
+    EXPECT_THAT(processSync(conv),
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_MOVE)),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
+                                          WithPointerCount(1u), WithCoords(50, 100),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(0))),
+                            VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_UP))));
 }
 
 // Some touchpads sometimes report a button press before they report the finger touching the pad. In
@@ -841,15 +938,14 @@
     processAxis(conv, EV_KEY, BTN_TOUCH, 1);
     processAxis(conv, EV_KEY, BTN_TOOL_FINGER, 1);
 
-    std::list<NotifyArgs> args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                WithMotionAction(AMOTION_EVENT_ACTION_DOWN));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS), WithPointerCount(1u),
-                      WithCoords(50, 100), WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY)));
+    EXPECT_THAT(processSync(conv),
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_DOWN)),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
+                                          WithPointerCount(1u), WithCoords(50, 100),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY)))));
 }
 
 // When all fingers are lifted from a touchpad, we should release any buttons that are down, since
@@ -866,29 +962,25 @@
 
     processAxis(conv, EV_KEY, BTN_LEFT, 1);
 
-    std::list<NotifyArgs> args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                WithMotionAction(AMOTION_EVENT_ACTION_DOWN));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS));
+    EXPECT_THAT(processSync(conv),
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_DOWN)),
+                            VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS))));
 
     processAxis(conv, EV_ABS, ABS_MT_TRACKING_ID, -1);
     processAxis(conv, EV_KEY, BTN_TOUCH, 0);
     processAxis(conv, EV_KEY, BTN_TOOL_FINGER, 0);
-    args = processSync(conv);
-    ASSERT_EQ(3u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                WithMotionAction(AMOTION_EVENT_ACTION_MOVE));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE), WithPointerCount(1u),
-                      WithCoords(50, 100), WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithButtonState(0)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                WithMotionAction(AMOTION_EVENT_ACTION_UP));
+    EXPECT_THAT(processSync(conv),
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_MOVE)),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
+                                          WithPointerCount(1u), WithCoords(50, 100),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(0))),
+                            VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_UP))));
 
     processAxis(conv, EV_KEY, BTN_LEFT, 0);
     ASSERT_EQ(0u, processSync(conv).size());
@@ -908,48 +1000,41 @@
                 WithMotionAction(AMOTION_EVENT_ACTION_DOWN));
 
     processAxis(conv, EV_KEY, BTN_LEFT, 1);
-    std::list<NotifyArgs> args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                WithMotionAction(AMOTION_EVENT_ACTION_MOVE));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
-                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY)));
+    EXPECT_THAT(processSync(conv),
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_MOVE)),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY)))));
 
     processAxis(conv, EV_KEY, BTN_RIGHT, 1);
-    args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                WithMotionAction(AMOTION_EVENT_ACTION_MOVE));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
-                      WithActionButton(AMOTION_EVENT_BUTTON_SECONDARY),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY |
-                                      AMOTION_EVENT_BUTTON_SECONDARY)));
+    EXPECT_THAT(processSync(conv),
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_MOVE)),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_SECONDARY),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY |
+                                                          AMOTION_EVENT_BUTTON_SECONDARY)))));
 
     processAxis(conv, EV_KEY, BTN_LEFT, 0);
-    args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                WithMotionAction(AMOTION_EVENT_ACTION_MOVE));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
-                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithButtonState(AMOTION_EVENT_BUTTON_SECONDARY)));
+    EXPECT_THAT(processSync(conv),
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_MOVE)),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_SECONDARY)))));
 
     processAxis(conv, EV_KEY, BTN_RIGHT, 0);
-    args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                WithMotionAction(AMOTION_EVENT_ACTION_MOVE));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
-                      WithActionButton(AMOTION_EVENT_BUTTON_SECONDARY), WithButtonState(0)));
+    EXPECT_THAT(processSync(conv),
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_MOVE)),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_SECONDARY),
+                                          WithButtonState(0)))));
 }
 
 } // namespace android

diff --git a/services/inputflinger/tests/FakeInputReaderPolicy.cpp b/services/inputflinger/tests/FakeInputReaderPolicy.cpp
index d77d539..e1f844c 100644
--- a/services/inputflinger/tests/FakeInputReaderPolicy.cpp
+++ b/services/inputflinger/tests/FakeInputReaderPolicy.cpp

@@ -32,19 +32,23 @@
 } // namespace
 
 void FakeInputReaderPolicy::assertInputDevicesChanged() {
-    waitForInputDevices([](bool devicesChanged) {
-        if (!devicesChanged) {
-            FAIL() << "Timed out waiting for notifyInputDevicesChanged() to be called.";
-        }
-    });
+    waitForInputDevices(
+            [](bool devicesChanged) {
+                if (!devicesChanged) {
+                    FAIL() << "Timed out waiting for notifyInputDevicesChanged() to be called.";
+                }
+            },
+            ADD_INPUT_DEVICE_TIMEOUT);
 }
 
 void FakeInputReaderPolicy::assertInputDevicesNotChanged() {
-    waitForInputDevices([](bool devicesChanged) {
-        if (devicesChanged) {
-            FAIL() << "Expected notifyInputDevicesChanged() to not be called.";
-        }
-    });
+    waitForInputDevices(
+            [](bool devicesChanged) {
+                if (devicesChanged) {
+                    FAIL() << "Expected notifyInputDevicesChanged() to not be called.";
+                }
+            },
+            INPUT_DEVICES_DIDNT_CHANGE_TIMEOUT);
 }
 
 void FakeInputReaderPolicy::assertStylusGestureNotified(int32_t deviceId) {
@@ -261,13 +265,13 @@
     return "";
 }
 
-void FakeInputReaderPolicy::waitForInputDevices(std::function<void(bool)> processDevicesChanged) {
+void FakeInputReaderPolicy::waitForInputDevices(std::function<void(bool)> processDevicesChanged,
+                                                std::chrono::milliseconds timeout) {
     std::unique_lock<std::mutex> lock(mLock);
     base::ScopedLockAssertion assumeLocked(mLock);
 
     const bool devicesChanged =
-            mDevicesChangedCondition.wait_for(lock,
-                                              ADD_INPUT_DEVICE_TIMEOUT * HW_TIMEOUT_MULTIPLIER,
+            mDevicesChangedCondition.wait_for(lock, timeout * HW_TIMEOUT_MULTIPLIER,
                                               [this]() REQUIRES(mLock) {
                                                   return mInputDevicesChanged;
                                               });

diff --git a/services/inputflinger/tests/FakeInputReaderPolicy.h b/services/inputflinger/tests/FakeInputReaderPolicy.h
index e5ba620..61bb9fc 100644
--- a/services/inputflinger/tests/FakeInputReaderPolicy.h
+++ b/services/inputflinger/tests/FakeInputReaderPolicy.h

@@ -88,7 +88,8 @@
     std::shared_ptr<KeyCharacterMap> getKeyboardLayoutOverlay(
             const InputDeviceIdentifier&, const std::optional<KeyboardLayoutInfo>) override;
     std::string getDeviceAlias(const InputDeviceIdentifier&) override;
-    void waitForInputDevices(std::function<void(bool)> processDevicesChanged);
+    void waitForInputDevices(std::function<void(bool)> processDevicesChanged,
+                             std::chrono::milliseconds timeout);
     void notifyStylusGestureStarted(int32_t deviceId, nsecs_t eventTime) override;
 
     mutable std::mutex mLock;

diff --git a/services/inputflinger/tests/LatencyTracker_test.cpp b/services/inputflinger/tests/LatencyTracker_test.cpp
index 4fcffdd..5650286 100644
--- a/services/inputflinger/tests/LatencyTracker_test.cpp
+++ b/services/inputflinger/tests/LatencyTracker_test.cpp

@@ -61,12 +61,13 @@
 
 InputEventTimeline getTestTimeline() {
     InputEventTimeline t(
-            /*isDown=*/true,
+            /*isDown=*/false,
             /*eventTime=*/2,
             /*readTime=*/3,
             /*vendorId=*/0,
             /*productId=*/0,
-            /*sources=*/{InputDeviceUsageSource::UNKNOWN});
+            /*sources=*/{InputDeviceUsageSource::UNKNOWN},
+            /*inputEventActionType=*/InputEventActionType::UNKNOWN_INPUT_EVENT);
     ConnectionTimeline expectedCT(/*deliveryTime=*/6, /*consumeTime=*/7, /*finishTime=*/8);
     std::array<nsecs_t, GraphicsTimeline::SIZE> graphicsTimeline;
     graphicsTimeline[GraphicsTimeline::GPU_COMPLETED_TIME] = 9;
@@ -116,9 +117,10 @@
 void LatencyTrackerTest::triggerEventReporting(nsecs_t lastEventTime) {
     const nsecs_t triggerEventTime =
             lastEventTime + std::chrono::nanoseconds(ANR_TIMEOUT).count() + 1;
-    mTracker->trackListener(/*inputEventId=*/1, /*isDown=*/true, triggerEventTime,
+    mTracker->trackListener(/*inputEventId=*/1, triggerEventTime,
                             /*readTime=*/3, DEVICE_ID,
-                            /*sources=*/{InputDeviceUsageSource::UNKNOWN});
+                            /*sources=*/{InputDeviceUsageSource::UNKNOWN},
+                            AMOTION_EVENT_ACTION_CANCEL, InputEventType::MOTION);
 }
 
 void LatencyTrackerTest::assertReceivedTimeline(const InputEventTimeline& timeline) {
@@ -167,12 +169,15 @@
  * any additional ConnectionTimeline's.
  */
 TEST_F(LatencyTrackerTest, TrackListener_DoesNotTriggerReporting) {
-    mTracker->trackListener(/*inputEventId=*/1, /*isDown=*/false, /*eventTime=*/2,
-                            /*readTime=*/3, DEVICE_ID, {InputDeviceUsageSource::UNKNOWN});
+    mTracker->trackListener(/*inputEventId=*/1, /*eventTime=*/2,
+                            /*readTime=*/3, DEVICE_ID, {InputDeviceUsageSource::UNKNOWN},
+                            AMOTION_EVENT_ACTION_CANCEL, InputEventType::MOTION);
     triggerEventReporting(/*eventTime=*/2);
-    assertReceivedTimeline(InputEventTimeline{/*isDown=*/false, /*eventTime=*/2,
-                                              /*readTime=*/3, /*vendorId=*/0, /*productID=*/0,
-                                              /*sources=*/{InputDeviceUsageSource::UNKNOWN}});
+    assertReceivedTimeline(
+            InputEventTimeline{/*isDown=*/false, /*eventTime=*/2,
+                               /*readTime=*/3, /*vendorId=*/0, /*productID=*/0,
+                               /*sources=*/{InputDeviceUsageSource::UNKNOWN},
+                               /*inputEventActionType=*/InputEventActionType::UNKNOWN_INPUT_EVENT});
 }
 
 /**
@@ -203,8 +208,9 @@
 
     const auto& [connectionToken, expectedCT] = *expected.connectionTimelines.begin();
 
-    mTracker->trackListener(inputEventId, expected.isDown, expected.eventTime, expected.readTime,
-                            DEVICE_ID, {InputDeviceUsageSource::UNKNOWN});
+    mTracker->trackListener(inputEventId, expected.eventTime, expected.readTime, DEVICE_ID,
+                            {InputDeviceUsageSource::UNKNOWN}, AMOTION_EVENT_ACTION_CANCEL,
+                            InputEventType::MOTION);
     mTracker->trackFinishedEvent(inputEventId, connectionToken, expectedCT.deliveryTime,
                                  expectedCT.consumeTime, expectedCT.finishTime);
     mTracker->trackGraphicsLatency(inputEventId, connectionToken, expectedCT.graphicsTimeline);
@@ -220,14 +226,16 @@
 TEST_F(LatencyTrackerTest, WhenDuplicateEventsAreReported_DoesNotCrash) {
     constexpr nsecs_t inputEventId = 1;
     constexpr nsecs_t readTime = 3; // does not matter for this test
-    constexpr bool isDown = true;   // does not matter for this test
+    constexpr bool isDown = false;  // does not matter for this test
 
     // In the following 2 calls to trackListener, the inputEventId's are the same, but event times
     // are different.
-    mTracker->trackListener(inputEventId, isDown, /*eventTime=*/1, readTime, DEVICE_ID,
-                            {InputDeviceUsageSource::UNKNOWN});
-    mTracker->trackListener(inputEventId, isDown, /*eventTime=*/2, readTime, DEVICE_ID,
-                            {InputDeviceUsageSource::UNKNOWN});
+    mTracker->trackListener(inputEventId, /*eventTime=*/1, readTime, DEVICE_ID,
+                            {InputDeviceUsageSource::UNKNOWN}, AMOTION_EVENT_ACTION_CANCEL,
+                            InputEventType::MOTION);
+    mTracker->trackListener(inputEventId, /*eventTime=*/2, readTime, DEVICE_ID,
+                            {InputDeviceUsageSource::UNKNOWN}, AMOTION_EVENT_ACTION_CANCEL,
+                            InputEventType::MOTION);
 
     triggerEventReporting(/*eventTime=*/2);
     // Since we sent duplicate input events, the tracker should just delete all of them, because it
@@ -238,12 +246,13 @@
 TEST_F(LatencyTrackerTest, MultipleEvents_AreReportedConsistently) {
     constexpr int32_t inputEventId1 = 1;
     InputEventTimeline timeline1(
-            /*isDown*/ true,
+            /*isDown*/ false,
             /*eventTime*/ 2,
             /*readTime*/ 3,
             /*vendorId=*/0,
             /*productId=*/0,
-            /*sources=*/{InputDeviceUsageSource::UNKNOWN});
+            /*sources=*/{InputDeviceUsageSource::UNKNOWN},
+            /*inputEventType=*/InputEventActionType::UNKNOWN_INPUT_EVENT);
     timeline1.connectionTimelines.emplace(connection1,
                                           ConnectionTimeline(/*deliveryTime*/ 6, /*consumeTime*/ 7,
                                                              /*finishTime*/ 8));
@@ -260,7 +269,8 @@
             /*readTime=*/30,
             /*vendorId=*/0,
             /*productId=*/0,
-            /*sources=*/{InputDeviceUsageSource::UNKNOWN});
+            /*sources=*/{InputDeviceUsageSource::UNKNOWN},
+            /*inputEventActionType=*/InputEventActionType::UNKNOWN_INPUT_EVENT);
     timeline2.connectionTimelines.emplace(connection2,
                                           ConnectionTimeline(/*deliveryTime=*/60,
                                                              /*consumeTime=*/70,
@@ -272,11 +282,13 @@
     connectionTimeline2.setGraphicsTimeline(std::move(graphicsTimeline2));
 
     // Start processing first event
-    mTracker->trackListener(inputEventId1, timeline1.isDown, timeline1.eventTime,
-                            timeline1.readTime, DEVICE_ID, {InputDeviceUsageSource::UNKNOWN});
+    mTracker->trackListener(inputEventId1, timeline1.eventTime, timeline1.readTime, DEVICE_ID,
+                            {InputDeviceUsageSource::UNKNOWN}, AMOTION_EVENT_ACTION_CANCEL,
+                            InputEventType::MOTION);
     // Start processing second event
-    mTracker->trackListener(inputEventId2, timeline2.isDown, timeline2.eventTime,
-                            timeline2.readTime, DEVICE_ID, {InputDeviceUsageSource::UNKNOWN});
+    mTracker->trackListener(inputEventId2, timeline2.eventTime, timeline2.readTime, DEVICE_ID,
+                            {InputDeviceUsageSource::UNKNOWN}, AMOTION_EVENT_ACTION_CANCEL,
+                            InputEventType::MOTION);
     mTracker->trackFinishedEvent(inputEventId1, connection1, connectionTimeline1.deliveryTime,
                                  connectionTimeline1.consumeTime, connectionTimeline1.finishTime);
 
@@ -301,12 +313,14 @@
     const sp<IBinder>& token = timeline.connectionTimelines.begin()->first;
 
     for (size_t i = 1; i <= 100; i++) {
-        mTracker->trackListener(/*inputEventId=*/i, timeline.isDown, timeline.eventTime,
-                                timeline.readTime, /*deviceId=*/DEVICE_ID,
-                                /*sources=*/{InputDeviceUsageSource::UNKNOWN});
+        mTracker->trackListener(/*inputEventId=*/i, timeline.eventTime, timeline.readTime,
+                                /*deviceId=*/DEVICE_ID,
+                                /*sources=*/{InputDeviceUsageSource::UNKNOWN},
+                                AMOTION_EVENT_ACTION_CANCEL, InputEventType::MOTION);
         expectedTimelines.push_back(InputEventTimeline{timeline.isDown, timeline.eventTime,
                                                        timeline.readTime, timeline.vendorId,
-                                                       timeline.productId, timeline.sources});
+                                                       timeline.productId, timeline.sources,
+                                                       timeline.inputEventActionType});
     }
     // Now, complete the first event that was sent.
     mTracker->trackFinishedEvent(/*inputEventId=*/1, token, expectedCT.deliveryTime,
@@ -332,12 +346,14 @@
                                  expectedCT.consumeTime, expectedCT.finishTime);
     mTracker->trackGraphicsLatency(inputEventId, connection1, expectedCT.graphicsTimeline);
 
-    mTracker->trackListener(inputEventId, expected.isDown, expected.eventTime, expected.readTime,
-                            DEVICE_ID, {InputDeviceUsageSource::UNKNOWN});
+    mTracker->trackListener(inputEventId, expected.eventTime, expected.readTime, DEVICE_ID,
+                            {InputDeviceUsageSource::UNKNOWN}, AMOTION_EVENT_ACTION_CANCEL,
+                            InputEventType::MOTION);
     triggerEventReporting(expected.eventTime);
     assertReceivedTimeline(InputEventTimeline{expected.isDown, expected.eventTime,
                                               expected.readTime, expected.vendorId,
-                                              expected.productId, expected.sources});
+                                              expected.productId, expected.sources,
+                                              expected.inputEventActionType});
 }
 
 /**
@@ -348,22 +364,92 @@
 TEST_F(LatencyTrackerTest, TrackListenerCheck_DeviceInfoFieldsInputEventTimeline) {
     constexpr int32_t inputEventId = 1;
     InputEventTimeline timeline(
-            /*isDown*/ true, /*eventTime*/ 2, /*readTime*/ 3,
+            /*isDown*/ false, /*eventTime*/ 2, /*readTime*/ 3,
             /*vendorId=*/50, /*productId=*/60,
             /*sources=*/
-            {InputDeviceUsageSource::TOUCHSCREEN, InputDeviceUsageSource::STYLUS_DIRECT});
+            {InputDeviceUsageSource::TOUCHSCREEN, InputDeviceUsageSource::STYLUS_DIRECT},
+            /*inputEventActionType=*/InputEventActionType::UNKNOWN_INPUT_EVENT);
     InputDeviceInfo deviceInfo1 = generateTestDeviceInfo(
             /*vendorId=*/5, /*productId=*/6, /*deviceId=*/DEVICE_ID + 1);
     InputDeviceInfo deviceInfo2 = generateTestDeviceInfo(
             /*vendorId=*/50, /*productId=*/60, /*deviceId=*/DEVICE_ID);
 
     mTracker->setInputDevices({deviceInfo1, deviceInfo2});
-    mTracker->trackListener(inputEventId, timeline.isDown, timeline.eventTime, timeline.readTime,
-                            DEVICE_ID,
+    mTracker->trackListener(inputEventId, timeline.eventTime, timeline.readTime, DEVICE_ID,
                             {InputDeviceUsageSource::TOUCHSCREEN,
-                             InputDeviceUsageSource::STYLUS_DIRECT});
+                             InputDeviceUsageSource::STYLUS_DIRECT},
+                            AMOTION_EVENT_ACTION_CANCEL, InputEventType::MOTION);
     triggerEventReporting(timeline.eventTime);
     assertReceivedTimeline(timeline);
 }
 
+/**
+ * Check that InputEventActionType is correctly assigned to InputEventTimeline in trackListener.
+ */
+TEST_F(LatencyTrackerTest, TrackListenerCheck_InputEventActionTypeFieldInputEventTimeline) {
+    constexpr int32_t inputEventId = 1;
+    // Create timelines for different event types (Motion, Key)
+    InputEventTimeline motionDownTimeline(
+            /*isDown*/ true, /*eventTime*/ 2, /*readTime*/ 3,
+            /*vendorId*/ 0, /*productId*/ 0,
+            /*sources*/ {InputDeviceUsageSource::UNKNOWN},
+            /*inputEventActionType*/ InputEventActionType::MOTION_ACTION_DOWN);
+
+    InputEventTimeline motionMoveTimeline(
+            /*isDown*/ false, /*eventTime*/ 4, /*readTime*/ 5,
+            /*vendorId*/ 0, /*productId*/ 0,
+            /*sources*/ {InputDeviceUsageSource::UNKNOWN},
+            /*inputEventActionType*/ InputEventActionType::MOTION_ACTION_MOVE);
+
+    InputEventTimeline motionUpTimeline(
+            /*isDown*/ false, /*eventTime*/ 6, /*readTime*/ 7,
+            /*vendorId*/ 0, /*productId*/ 0,
+            /*sources*/ {InputDeviceUsageSource::UNKNOWN},
+            /*inputEventActionType*/ InputEventActionType::MOTION_ACTION_UP);
+
+    InputEventTimeline keyDownTimeline(
+            /*isDown*/ false, /*eventTime*/ 8, /*readTime*/ 9,
+            /*vendorId*/ 0, /*productId*/ 0,
+            /*sources*/ {InputDeviceUsageSource::UNKNOWN},
+            /*inputEventActionType*/ InputEventActionType::KEY);
+
+    InputEventTimeline keyUpTimeline(
+            /*isDown*/ false, /*eventTime*/ 10, /*readTime*/ 11,
+            /*vendorId*/ 0, /*productId*/ 0,
+            /*sources*/ {InputDeviceUsageSource::UNKNOWN},
+            /*inputEventActionType*/ InputEventActionType::KEY);
+
+    InputEventTimeline unknownTimeline(
+            /*isDown*/ false, /*eventTime*/ 12, /*readTime*/ 13,
+            /*vendorId*/ 0, /*productId*/ 0,
+            /*sources*/ {InputDeviceUsageSource::UNKNOWN},
+            /*inputEventActionType*/ InputEventActionType::UNKNOWN_INPUT_EVENT);
+
+    mTracker->trackListener(inputEventId, motionDownTimeline.eventTime, motionDownTimeline.readTime,
+                            DEVICE_ID, motionDownTimeline.sources, AMOTION_EVENT_ACTION_DOWN,
+                            InputEventType::MOTION);
+    mTracker->trackListener(inputEventId + 1, motionMoveTimeline.eventTime,
+                            motionMoveTimeline.readTime, DEVICE_ID, motionMoveTimeline.sources,
+                            AMOTION_EVENT_ACTION_MOVE, InputEventType::MOTION);
+    mTracker->trackListener(inputEventId + 2, motionUpTimeline.eventTime, motionUpTimeline.readTime,
+                            DEVICE_ID, motionUpTimeline.sources, AMOTION_EVENT_ACTION_UP,
+                            InputEventType::MOTION);
+    mTracker->trackListener(inputEventId + 3, keyDownTimeline.eventTime, keyDownTimeline.readTime,
+                            DEVICE_ID, keyDownTimeline.sources, AKEY_EVENT_ACTION_DOWN,
+                            InputEventType::KEY);
+    mTracker->trackListener(inputEventId + 4, keyUpTimeline.eventTime, keyUpTimeline.readTime,
+                            DEVICE_ID, keyUpTimeline.sources, AKEY_EVENT_ACTION_UP,
+                            InputEventType::KEY);
+    mTracker->trackListener(inputEventId + 5, unknownTimeline.eventTime, unknownTimeline.readTime,
+                            DEVICE_ID, unknownTimeline.sources, AMOTION_EVENT_ACTION_POINTER_DOWN,
+                            InputEventType::MOTION);
+
+    triggerEventReporting(unknownTimeline.eventTime);
+
+    std::vector<InputEventTimeline> expectedTimelines = {motionDownTimeline, motionMoveTimeline,
+                                                         motionUpTimeline,   keyDownTimeline,
+                                                         keyUpTimeline,      unknownTimeline};
+    assertReceivedTimelines(expectedTimelines);
+}
+
 } // namespace android::inputdispatcher

diff --git a/services/inputflinger/tests/TestConstants.h b/services/inputflinger/tests/TestConstants.h
index 082bbb8..d2337dd 100644
--- a/services/inputflinger/tests/TestConstants.h
+++ b/services/inputflinger/tests/TestConstants.h

@@ -25,7 +25,10 @@
 using std::chrono_literals::operator""ms;
 
 // Timeout for waiting for an input device to be added and processed
-static constexpr std::chrono::duration ADD_INPUT_DEVICE_TIMEOUT = 500ms;
+static constexpr std::chrono::duration ADD_INPUT_DEVICE_TIMEOUT = 5000ms;
+
+// Timeout for asserting that an input device change did not occur
+static constexpr std::chrono::duration INPUT_DEVICES_DIDNT_CHANGE_TIMEOUT = 100ms;
 
 // Timeout for waiting for an expected event
 static constexpr std::chrono::duration WAIT_TIMEOUT = 100ms;

diff --git a/services/inputflinger/tests/TestEventMatchers.h b/services/inputflinger/tests/TestEventMatchers.h
index cfedc6e..f3be041 100644
--- a/services/inputflinger/tests/TestEventMatchers.h
+++ b/services/inputflinger/tests/TestEventMatchers.h

@@ -654,6 +654,15 @@
     return argX == x && argY == y;
 }
 
+MATCHER_P3(WithPointerRelativeMotion, pointer, x, y,
+           "InputEvent with specified relative motion for pointer") {
+    const auto argX = arg.pointerCoords[pointer].getAxisValue(AMOTION_EVENT_AXIS_RELATIVE_X);
+    const auto argY = arg.pointerCoords[pointer].getAxisValue(AMOTION_EVENT_AXIS_RELATIVE_Y);
+    *result_listener << "expected pointer " << pointer << " to have relative motion (" << x << ", "
+                     << y << "), but got (" << argX << ", " << argY << ")";
+    return argX == x && argY == y;
+}
+
 MATCHER_P3(WithGestureOffset, dx, dy, epsilon,
            "InputEvent with specified touchpad gesture offset") {
     const auto argGestureX = arg.pointerCoords[0].getAxisValue(AMOTION_EVENT_AXIS_GESTURE_X_OFFSET);

diff --git a/services/inputflinger/tests/fuzzers/LatencyTrackerFuzzer.cpp b/services/inputflinger/tests/fuzzers/LatencyTrackerFuzzer.cpp
index 6daeaaf..80c2213 100644
--- a/services/inputflinger/tests/fuzzers/LatencyTrackerFuzzer.cpp
+++ b/services/inputflinger/tests/fuzzers/LatencyTrackerFuzzer.cpp

@@ -18,6 +18,7 @@
 #include <linux/input.h>
 
 #include "../../InputDeviceMetricsSource.h"
+#include "../InputEventTimeline.h"
 #include "dispatcher/LatencyTracker.h"
 
 namespace android {
@@ -65,14 +66,15 @@
         fdp.PickValueInArray<std::function<void()>>({
                 [&]() -> void {
                     int32_t inputEventId = fdp.ConsumeIntegral<int32_t>();
-                    int32_t isDown = fdp.ConsumeBool();
                     nsecs_t eventTime = fdp.ConsumeIntegral<nsecs_t>();
                     nsecs_t readTime = fdp.ConsumeIntegral<nsecs_t>();
                     const DeviceId deviceId = fdp.ConsumeIntegral<int32_t>();
                     std::set<InputDeviceUsageSource> sources = {
                             fdp.ConsumeEnum<InputDeviceUsageSource>()};
-                    tracker.trackListener(inputEventId, isDown, eventTime, readTime, deviceId,
-                                          sources);
+                    int32_t inputEventActionType = fdp.ConsumeIntegral<int32_t>();
+                    const InputEventType inputEventType = fdp.ConsumeEnum<InputEventType>();
+                    tracker.trackListener(inputEventId, eventTime, readTime, deviceId, sources,
+                                          inputEventActionType, inputEventType);
                 },
                 [&]() -> void {
                     int32_t inputEventId = fdp.ConsumeIntegral<int32_t>();

diff --git a/services/sensorservice/SensorEventConnection.cpp b/services/sensorservice/SensorEventConnection.cpp
index 130c112..f56642b 100644
--- a/services/sensorservice/SensorEventConnection.cpp
+++ b/services/sensorservice/SensorEventConnection.cpp

@@ -172,7 +172,7 @@
 
 bool SensorService::SensorEventConnection::removeSensor(int32_t handle) {
     Mutex::Autolock _l(mConnectionLock);
-    if (mSensorInfo.erase(handle) >= 0) {
+    if (mSensorInfo.erase(handle) > 0) {
         return true;
     }
     return false;

diff --git a/services/sensorservice/SensorService.cpp b/services/sensorservice/SensorService.cpp
index 3895ffe..57b473b 100644
--- a/services/sensorservice/SensorService.cpp
+++ b/services/sensorservice/SensorService.cpp

@@ -1583,7 +1583,11 @@
     // Only 4 modes supported for a SensorEventConnection ... NORMAL, DATA_INJECTION,
     // REPLAY_DATA_INJECTION and HAL_BYPASS_REPLAY_DATA_INJECTION
     if (requestedMode != NORMAL && !isInjectionMode(requestedMode)) {
-        return nullptr;
+      ALOGE(
+          "Failed to create sensor event connection: invalid request mode. "
+          "requestMode: %d",
+          requestedMode);
+      return nullptr;
     }
     resetTargetSdkVersionCache(opPackageName);
 
@@ -1591,8 +1595,19 @@
     // To create a client in DATA_INJECTION mode to inject data, SensorService should already be
     // operating in DI mode.
     if (requestedMode == DATA_INJECTION) {
-        if (mCurrentOperatingMode != DATA_INJECTION) return nullptr;
-        if (!isAllowListedPackage(packageName)) return nullptr;
+      if (mCurrentOperatingMode != DATA_INJECTION) {
+        ALOGE(
+            "Failed to create sensor event connection: sensor service not in "
+            "DI mode when creating a client in DATA_INJECTION mode");
+        return nullptr;
+      }
+      if (!isAllowListedPackage(packageName)) {
+        ALOGE(
+            "Failed to create sensor event connection: package %s not in "
+            "allowed list for DATA_INJECTION mode",
+            packageName.c_str());
+        return nullptr;
+      }
     }
 
     uid_t uid = IPCThreadState::self()->getCallingUid();

diff --git a/services/surfaceflinger/CompositionEngine/tests/MockHWC2.h b/services/surfaceflinger/CompositionEngine/tests/MockHWC2.h
index b0b1a02..eb6e677 100644
--- a/services/surfaceflinger/CompositionEngine/tests/MockHWC2.h
+++ b/services/surfaceflinger/CompositionEngine/tests/MockHWC2.h

@@ -33,6 +33,7 @@
 #include "DisplayHardware/HWC2.h"
 
 #include <aidl/android/hardware/graphics/composer3/Composition.h>
+#include <aidl/android/hardware/graphics/composer3/Lut.h>
 
 // TODO(b/129481165): remove the #pragma below and fix conversion issues
 #pragma clang diagnostic pop // ignored "-Wconversion -Wextra"
@@ -77,6 +78,7 @@
                  Error(const std::string&, bool, const std::vector<uint8_t>&));
     MOCK_METHOD1(setBrightness, Error(float));
     MOCK_METHOD1(setBlockingRegion, Error(const android::Region&));
+    MOCK_METHOD(Error, setLuts, (std::vector<aidl::android::hardware::graphics::composer3::Lut>&));
 };
 
 } // namespace mock

diff --git a/services/surfaceflinger/CompositionEngine/tests/MockHWComposer.h b/services/surfaceflinger/CompositionEngine/tests/MockHWComposer.h
index 629d9f2..839fb7d 100644
--- a/services/surfaceflinger/CompositionEngine/tests/MockHWComposer.h
+++ b/services/surfaceflinger/CompositionEngine/tests/MockHWComposer.h

@@ -151,6 +151,10 @@
                 getOverlaySupport, (), (const, override));
     MOCK_METHOD(status_t, setRefreshRateChangedCallbackDebugEnabled, (PhysicalDisplayId, bool));
     MOCK_METHOD(status_t, notifyExpectedPresent, (PhysicalDisplayId, TimePoint, Fps));
+    MOCK_METHOD(status_t, getRequestedLuts,
+                (PhysicalDisplayId,
+                 std::vector<aidl::android::hardware::graphics::composer3::DisplayLuts::LayerLut>*),
+                (override));
 };
 
 } // namespace mock

diff --git a/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp b/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp
index 0eced73..20ae74a 100644
--- a/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp
+++ b/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp

@@ -1540,7 +1540,7 @@
     return error;
 }
 
-Error AidlComposer::getDisplayLuts(Display display, std::vector<Lut>* outLuts) {
+Error AidlComposer::getRequestedLuts(Display display, std::vector<DisplayLuts::LayerLut>* outLuts) {
     Error error = Error::NONE;
     mMutex.lock_shared();
     if (auto reader = getReader(display)) {
@@ -1552,6 +1552,18 @@
     return error;
 }
 
+Error AidlComposer::setLayerLuts(Display display, Layer layer, std::vector<Lut>& luts) {
+    Error error = Error::NONE;
+    mMutex.lock_shared();
+    if (auto writer = getWriter(display)) {
+        writer->get().setLayerLuts(translate<int64_t>(display), translate<int64_t>(layer), luts);
+    } else {
+        error = Error::BAD_DISPLAY;
+    }
+    mMutex.unlock_shared();
+    return error;
+}
+
 Error AidlComposer::setLayerBrightness(Display display, Layer layer, float brightness) {
     Error error = Error::NONE;
     mMutex.lock_shared();

diff --git a/services/surfaceflinger/DisplayHardware/AidlComposerHal.h b/services/surfaceflinger/DisplayHardware/AidlComposerHal.h
index 3669d4c..246223a 100644
--- a/services/surfaceflinger/DisplayHardware/AidlComposerHal.h
+++ b/services/surfaceflinger/DisplayHardware/AidlComposerHal.h

@@ -244,9 +244,13 @@
     Error setRefreshRateChangedCallbackDebugEnabled(Display, bool) override;
     Error notifyExpectedPresent(Display, nsecs_t expectedPresentTime,
                                 int32_t frameIntervalNs) override;
-    Error getDisplayLuts(
+    Error getRequestedLuts(
             Display display,
-            std::vector<aidl::android::hardware::graphics::composer3::Lut>* outLuts) override;
+            std::vector<aidl::android::hardware::graphics::composer3::DisplayLuts::LayerLut>*
+                    outLuts) override;
+    Error setLayerLuts(
+            Display display, Layer layer,
+            std::vector<aidl::android::hardware::graphics::composer3::Lut>& luts) override;
 
 private:
     // Many public functions above simply write a command into the command

diff --git a/services/surfaceflinger/DisplayHardware/ComposerHal.h b/services/surfaceflinger/DisplayHardware/ComposerHal.h
index 888dc08..7db9a94 100644
--- a/services/surfaceflinger/DisplayHardware/ComposerHal.h
+++ b/services/surfaceflinger/DisplayHardware/ComposerHal.h

@@ -40,6 +40,7 @@
 #include <aidl/android/hardware/graphics/composer3/Composition.h>
 #include <aidl/android/hardware/graphics/composer3/DisplayCapability.h>
 #include <aidl/android/hardware/graphics/composer3/DisplayConfiguration.h>
+#include <aidl/android/hardware/graphics/composer3/DisplayLuts.h>
 #include <aidl/android/hardware/graphics/composer3/IComposerCallback.h>
 #include <aidl/android/hardware/graphics/composer3/Lut.h>
 #include <aidl/android/hardware/graphics/composer3/OverlayProperties.h>
@@ -304,7 +305,9 @@
     virtual Error setRefreshRateChangedCallbackDebugEnabled(Display, bool) = 0;
     virtual Error notifyExpectedPresent(Display, nsecs_t expectedPresentTime,
                                         int32_t frameIntervalNs) = 0;
-    virtual Error getDisplayLuts(Display display, std::vector<V3_0::Lut>* outLuts) = 0;
+    virtual Error getRequestedLuts(Display display,
+                                   std::vector<V3_0::DisplayLuts::LayerLut>* outLuts) = 0;
+    virtual Error setLayerLuts(Display display, Layer layer, std::vector<V3_0::Lut>& luts) = 0;
 };
 
 } // namespace Hwc2

diff --git a/services/surfaceflinger/DisplayHardware/HWC2.cpp b/services/surfaceflinger/DisplayHardware/HWC2.cpp
index d5f65c6..8e78af4 100644
--- a/services/surfaceflinger/DisplayHardware/HWC2.cpp
+++ b/services/surfaceflinger/DisplayHardware/HWC2.cpp

@@ -41,6 +41,7 @@
 using aidl::android::hardware::graphics::composer3::Composition;
 using AidlCapability = aidl::android::hardware::graphics::composer3::Capability;
 using aidl::android::hardware::graphics::composer3::DisplayCapability;
+using aidl::android::hardware::graphics::composer3::DisplayLuts;
 using aidl::android::hardware::graphics::composer3::Lut;
 using aidl::android::hardware::graphics::composer3::OverlayProperties;
 
@@ -608,13 +609,14 @@
     return static_cast<Error>(error);
 }
 
-Error Display::getDisplayLuts(std::vector<Lut>* outLuts) {
-    std::vector<Lut> tmpLuts;
-    const auto error = mComposer.getDisplayLuts(mId, &tmpLuts);
-    for (Lut& lut : tmpLuts) {
-        if (lut.pfd.get() >= 0) {
-            outLuts->push_back(
-                    {lut.layer, ndk::ScopedFileDescriptor(lut.pfd.release()), lut.lutProperties});
+Error Display::getRequestedLuts(std::vector<DisplayLuts::LayerLut>* outLayerLuts) {
+    std::vector<DisplayLuts::LayerLut> tmpLayerLuts;
+    const auto error = mComposer.getRequestedLuts(mId, &tmpLayerLuts);
+    for (DisplayLuts::LayerLut& layerLut : tmpLayerLuts) {
+        if (layerLut.lut.pfd.get() >= 0) {
+            outLayerLuts->push_back({layerLut.layer,
+                                     Lut{ndk::ScopedFileDescriptor(layerLut.lut.pfd.release()),
+                                         layerLut.lut.lutProperties}});
         }
     }
     return static_cast<Error>(error);
@@ -1050,6 +1052,14 @@
     return static_cast<Error>(intError);
 }
 
+Error Layer::setLuts(std::vector<Lut>& luts) {
+    if (CC_UNLIKELY(!mDisplay)) {
+        return Error::BAD_DISPLAY;
+    }
+    const auto intError = mComposer.setLayerLuts(mDisplay->getId(), mId, luts);
+    return static_cast<Error>(intError);
+}
+
 } // namespace impl
 } // namespace HWC2
 } // namespace android

diff --git a/services/surfaceflinger/DisplayHardware/HWC2.h b/services/surfaceflinger/DisplayHardware/HWC2.h
index be2059a..c2dc943 100644
--- a/services/surfaceflinger/DisplayHardware/HWC2.h
+++ b/services/surfaceflinger/DisplayHardware/HWC2.h

@@ -179,8 +179,9 @@
     [[nodiscard]] virtual hal::Error getClientTargetProperty(
             aidl::android::hardware::graphics::composer3::ClientTargetPropertyWithBrightness*
                     outClientTargetProperty) = 0;
-    [[nodiscard]] virtual hal::Error getDisplayLuts(
-            std::vector<aidl::android::hardware::graphics::composer3::Lut>* outLuts) = 0;
+    [[nodiscard]] virtual hal::Error getRequestedLuts(
+            std::vector<aidl::android::hardware::graphics::composer3::DisplayLuts::LayerLut>*
+                    outLuts) = 0;
     [[nodiscard]] virtual hal::Error getDisplayDecorationSupport(
             std::optional<aidl::android::hardware::graphics::common::DisplayDecorationSupport>*
                     support) = 0;
@@ -264,8 +265,9 @@
     hal::Error getClientTargetProperty(
             aidl::android::hardware::graphics::composer3::ClientTargetPropertyWithBrightness*
                     outClientTargetProperty) override;
-    hal::Error getDisplayLuts(
-            std::vector<aidl::android::hardware::graphics::composer3::Lut>* outLuts) override;
+    hal::Error getRequestedLuts(
+            std::vector<aidl::android::hardware::graphics::composer3::DisplayLuts::LayerLut>*
+                    outLuts) override;
     hal::Error getDisplayDecorationSupport(
             std::optional<aidl::android::hardware::graphics::common::DisplayDecorationSupport>*
                     support) override;
@@ -359,6 +361,8 @@
     // AIDL HAL
     [[nodiscard]] virtual hal::Error setBrightness(float brightness) = 0;
     [[nodiscard]] virtual hal::Error setBlockingRegion(const android::Region& region) = 0;
+    [[nodiscard]] virtual hal::Error setLuts(
+            std::vector<aidl::android::hardware::graphics::composer3::Lut>& luts) = 0;
 };
 
 namespace impl {
@@ -409,6 +413,8 @@
     // AIDL HAL
     hal::Error setBrightness(float brightness) override;
     hal::Error setBlockingRegion(const android::Region& region) override;
+    hal::Error setLuts(
+            std::vector<aidl::android::hardware::graphics::composer3::Lut>& luts) override;
 
 private:
     // These are references to data owned by HWComposer, which will outlive

diff --git a/services/surfaceflinger/DisplayHardware/HWComposer.cpp b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
index 73fa855..c83e0da 100644
--- a/services/surfaceflinger/DisplayHardware/HWComposer.cpp
+++ b/services/surfaceflinger/DisplayHardware/HWComposer.cpp

@@ -533,6 +533,7 @@
 
     DeviceRequestedChanges::ClientTargetProperty clientTargetProperty;
     error = hwcDisplay->getClientTargetProperty(&clientTargetProperty);
+    RETURN_IF_HWC_ERROR_FOR("getClientTargetProperty", error, displayId, BAD_INDEX);
 
     outChanges->emplace(DeviceRequestedChanges{std::move(changedTypes), std::move(displayRequests),
                                                std::move(layerRequests),
@@ -925,6 +926,21 @@
     return NO_ERROR;
 }
 
+status_t HWComposer::getRequestedLuts(
+        PhysicalDisplayId displayId,
+        std::vector<aidl::android::hardware::graphics::composer3::DisplayLuts::LayerLut>* outLuts) {
+    RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX);
+    const auto error = mDisplayData[displayId].hwcDisplay->getRequestedLuts(outLuts);
+    if (error == hal::Error::UNSUPPORTED) {
+        RETURN_IF_HWC_ERROR(error, displayId, INVALID_OPERATION);
+    }
+    if (error == hal::Error::BAD_PARAMETER) {
+        RETURN_IF_HWC_ERROR(error, displayId, BAD_VALUE);
+    }
+    RETURN_IF_HWC_ERROR(error, displayId, UNKNOWN_ERROR);
+    return NO_ERROR;
+}
+
 status_t HWComposer::setAutoLowLatencyMode(PhysicalDisplayId displayId, bool on) {
     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX);
     const auto error = mDisplayData[displayId].hwcDisplay->setAutoLowLatencyMode(on);

diff --git a/services/surfaceflinger/DisplayHardware/HWComposer.h b/services/surfaceflinger/DisplayHardware/HWComposer.h
index 9368b7b..dec4bfe 100644
--- a/services/surfaceflinger/DisplayHardware/HWComposer.h
+++ b/services/surfaceflinger/DisplayHardware/HWComposer.h

@@ -52,6 +52,7 @@
 #include <aidl/android/hardware/graphics/composer3/ClientTargetPropertyWithBrightness.h>
 #include <aidl/android/hardware/graphics/composer3/Composition.h>
 #include <aidl/android/hardware/graphics/composer3/DisplayCapability.h>
+#include <aidl/android/hardware/graphics/composer3/DisplayLuts.h>
 #include <aidl/android/hardware/graphics/composer3/OverlayProperties.h>
 
 namespace android {
@@ -309,6 +310,11 @@
     virtual status_t setRefreshRateChangedCallbackDebugEnabled(PhysicalDisplayId, bool enabled) = 0;
     virtual status_t notifyExpectedPresent(PhysicalDisplayId, TimePoint expectedPresentTime,
                                            Fps frameInterval) = 0;
+
+    // Composer 4.0
+    virtual status_t getRequestedLuts(
+            PhysicalDisplayId,
+            std::vector<aidl::android::hardware::graphics::composer3::DisplayLuts::LayerLut>*) = 0;
 };
 
 static inline bool operator==(const android::HWComposer::DeviceRequestedChanges& lhs,
@@ -472,6 +478,12 @@
     status_t notifyExpectedPresent(PhysicalDisplayId, TimePoint expectedPresentTime,
                                    Fps frameInterval) override;
 
+    // Composer 4.0
+    status_t getRequestedLuts(
+            PhysicalDisplayId,
+            std::vector<aidl::android::hardware::graphics::composer3::DisplayLuts::LayerLut>*)
+            override;
+
     // for debugging ----------------------------------------------------------
     void dump(std::string& out) const override;
     void dumpOverlayProperties(std::string& out) const override;

diff --git a/services/surfaceflinger/DisplayHardware/HidlComposerHal.cpp b/services/surfaceflinger/DisplayHardware/HidlComposerHal.cpp
index ec2a3ec..ee1e07a 100644
--- a/services/surfaceflinger/DisplayHardware/HidlComposerHal.cpp
+++ b/services/surfaceflinger/DisplayHardware/HidlComposerHal.cpp

@@ -46,6 +46,7 @@
 using aidl::android::hardware::graphics::composer3::ClientTargetPropertyWithBrightness;
 using aidl::android::hardware::graphics::composer3::DimmingStage;
 using aidl::android::hardware::graphics::composer3::DisplayCapability;
+using aidl::android::hardware::graphics::composer3::DisplayLuts;
 using aidl::android::hardware::graphics::composer3::Lut;
 using aidl::android::hardware::graphics::composer3::OverlayProperties;
 
@@ -1409,7 +1410,11 @@
     return Error::NONE;
 }
 
-Error HidlComposer::getDisplayLuts(Display, std::vector<Lut>*) {
+Error HidlComposer::getRequestedLuts(Display, std::vector<DisplayLuts::LayerLut>*) {
+    return Error::NONE;
+}
+
+Error HidlComposer::setLayerLuts(Display, Layer, std::vector<Lut>&) {
     return Error::NONE;
 }
 

diff --git a/services/surfaceflinger/DisplayHardware/HidlComposerHal.h b/services/surfaceflinger/DisplayHardware/HidlComposerHal.h
index 8bca5ad..701a54b 100644
--- a/services/surfaceflinger/DisplayHardware/HidlComposerHal.h
+++ b/services/surfaceflinger/DisplayHardware/HidlComposerHal.h

@@ -351,8 +351,12 @@
                                    Hdr*) override;
     Error setRefreshRateChangedCallbackDebugEnabled(Display, bool) override;
     Error notifyExpectedPresent(Display, nsecs_t, int32_t) override;
-    Error getDisplayLuts(Display,
-                         std::vector<aidl::android::hardware::graphics::composer3::Lut>*) override;
+    Error getRequestedLuts(
+            Display,
+            std::vector<aidl::android::hardware::graphics::composer3::DisplayLuts::LayerLut>*)
+            override;
+    Error setLayerLuts(Display, Layer,
+                       std::vector<aidl::android::hardware::graphics::composer3::Lut>&) override;
 
 private:
     class CommandWriter : public CommandWriterBase {

diff --git a/services/surfaceflinger/FrameTimeline/FrameTimeline.cpp b/services/surfaceflinger/FrameTimeline/FrameTimeline.cpp
index 2a0ee5a..3736abc 100644
--- a/services/surfaceflinger/FrameTimeline/FrameTimeline.cpp
+++ b/services/surfaceflinger/FrameTimeline/FrameTimeline.cpp

@@ -697,6 +697,23 @@
         jd.jankType = mJankType;
         jd.frameIntervalNs =
                 (mRenderRate ? *mRenderRate : mDisplayFrameRenderRate).getPeriodNsecs();
+
+        if (mPredictionState == PredictionState::Valid) {
+            jd.scheduledAppFrameTimeNs = mPredictions.endTime - mPredictions.startTime;
+
+            // Using expected start, rather than actual, to measure the entire frame time. That is
+            // if the application starts the frame later than scheduled, include that delay in the
+            // frame time, as it usually means main thread being busy with non-rendering work.
+            if (mPresentState == PresentState::Dropped) {
+                jd.actualAppFrameTimeNs = mDropTime - mPredictions.startTime;
+            } else {
+                jd.actualAppFrameTimeNs = mActuals.endTime - mPredictions.startTime;
+            }
+        } else {
+            jd.scheduledAppFrameTimeNs = 0;
+            jd.actualAppFrameTimeNs = 0;
+        }
+
         JankTracker::onJankData(mLayerId, jd);
     }
 }

diff --git a/services/surfaceflinger/FrontEnd/Update.h b/services/surfaceflinger/FrontEnd/Update.h
index e5cca8f..4af27ab 100644
--- a/services/surfaceflinger/FrontEnd/Update.h
+++ b/services/surfaceflinger/FrontEnd/Update.h

@@ -22,28 +22,13 @@
 #include "RequestedLayerState.h"
 #include "TransactionState.h"
 
-namespace android {
-struct LayerCreatedState {
-    LayerCreatedState(const wp<Layer>& layer, const wp<Layer>& parent, bool addToRoot)
-          : layer(layer), initialParent(parent), addToRoot(addToRoot) {}
-    wp<Layer> layer;
-    // Indicates the initial parent of the created layer, only used for creating layer in
-    // SurfaceFlinger. If nullptr, it may add the created layer into the current root layers.
-    wp<Layer> initialParent;
-    // Indicates whether the layer getting created should be added at root if there's no parent
-    // and has permission ACCESS_SURFACE_FLINGER. If set to false and no parent, the layer will
-    // be added offscreen.
-    bool addToRoot;
-};
-} // namespace android
-
 namespace android::surfaceflinger::frontend {
 
 // Atomic set of changes affecting layer state. These changes are queued in binder threads and
 // applied every vsync.
 struct Update {
     std::vector<TransactionState> transactions;
-    std::vector<LayerCreatedState> layerCreatedStates;
+    std::vector<sp<Layer>> legacyLayers;
     std::vector<std::unique_ptr<frontend::RequestedLayerState>> newLayers;
     std::vector<LayerCreationArgs> layerCreationArgs;
     std::vector<std::pair<uint32_t, std::string /* debugName */>> destroyedHandles;

diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index 636f7bd..3c8af19 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp

@@ -231,10 +231,6 @@
     LOG_ALWAYS_FATAL_IF(std::this_thread::get_id() != mFlinger->mMainThreadId,
                         "Layer destructor called off the main thread.");
 
-    // The original layer and the clone layer share the same texture and buffer. Therefore, only
-    // one of the layers, in this case the original layer, needs to handle the deletion. The
-    // original layer and the clone should be removed at the same time so there shouldn't be any
-    // issue with the clone layer trying to use the texture.
     if (mBufferInfo.mBuffer != nullptr) {
         callReleaseBufferCallback(mDrawingState.releaseBufferListener,
                                   mBufferInfo.mBuffer->getBuffer(), mBufferInfo.mFrameNumber,
@@ -250,10 +246,6 @@
     if (mDrawingState.sidebandStream != nullptr) {
         mFlinger->mTunnelModeEnabledReporter->decrementTunnelModeCount();
     }
-    if (mHadClonedChild) {
-        auto& roots = mFlinger->mLayerMirrorRoots;
-        roots.erase(std::remove(roots.begin(), roots.end(), this), roots.end());
-    }
     if (hasTrustedPresentationListener()) {
         mFlinger->mNumTrustedPresentationListeners--;
         updateTrustedPresentationState(nullptr, nullptr, -1 /* time_in_ms */, true /* leaveState*/);
@@ -282,48 +274,6 @@
     }
 }
 
-void Layer::removeFromCurrentState() {
-    if (!mRemovedFromDrawingState) {
-        mRemovedFromDrawingState = true;
-        mFlinger->mScheduler->deregisterLayer(this);
-    }
-    updateTrustedPresentationState(nullptr, nullptr, -1 /* time_in_ms */, true /* leaveState*/);
-
-    mFlinger->markLayerPendingRemovalLocked(sp<Layer>::fromExisting(this));
-}
-
-sp<Layer> Layer::getRootLayer() {
-    sp<Layer> parent = getParent();
-    if (parent == nullptr) {
-        return sp<Layer>::fromExisting(this);
-    }
-    return parent->getRootLayer();
-}
-
-void Layer::onRemovedFromCurrentState() {
-    // Use the root layer since we want to maintain the hierarchy for the entire subtree.
-    auto layersInTree = getRootLayer()->getLayersInTree(LayerVector::StateSet::Current);
-    std::sort(layersInTree.begin(), layersInTree.end());
-
-    REQUIRE_MUTEX(mFlinger->mStateLock);
-    traverse(LayerVector::StateSet::Current,
-             [&](Layer* layer) REQUIRES(layer->mFlinger->mStateLock) {
-                 layer->removeFromCurrentState();
-                 layer->removeRelativeZ(layersInTree);
-             });
-}
-
-void Layer::addToCurrentState() {
-    if (mRemovedFromDrawingState) {
-        mRemovedFromDrawingState = false;
-        mFlinger->mScheduler->registerLayer(this, FrameRateCompatibility::Default);
-    }
-
-    for (const auto& child : mCurrentChildren) {
-        child->addToCurrentState();
-    }
-}
-
 // ---------------------------------------------------------------------------
 // set-up
 // ---------------------------------------------------------------------------
@@ -592,7 +542,6 @@
     snapshot->alpha = alpha;
     snapshot->backgroundBlurRadius = getBackgroundBlurRadius();
     snapshot->blurRegions = getBlurRegions();
-    snapshot->stretchEffect = getStretchEffect();
 }
 
 void Layer::prepareGeometryCompositionState() {
@@ -826,33 +775,6 @@
     mTransactionFlags |= mask;
 }
 
-bool Layer::setChildLayer(const sp<Layer>& childLayer, int32_t z) {
-    ssize_t idx = mCurrentChildren.indexOf(childLayer);
-    if (idx < 0) {
-        return false;
-    }
-    if (childLayer->setLayer(z)) {
-        mCurrentChildren.removeAt(idx);
-        mCurrentChildren.add(childLayer);
-        return true;
-    }
-    return false;
-}
-
-bool Layer::setChildRelativeLayer(const sp<Layer>& childLayer,
-        const sp<IBinder>& relativeToHandle, int32_t relativeZ) {
-    ssize_t idx = mCurrentChildren.indexOf(childLayer);
-    if (idx < 0) {
-        return false;
-    }
-    if (childLayer->setRelativeLayer(relativeToHandle, relativeZ)) {
-        mCurrentChildren.removeAt(idx);
-        mCurrentChildren.add(childLayer);
-        return true;
-    }
-    return false;
-}
-
 bool Layer::setLayer(int32_t z) {
     if (mDrawingState.z == z && !usingRelativeZ(LayerVector::StateSet::Current)) return false;
     mDrawingState.sequence++;
@@ -959,46 +881,6 @@
     return true;
 }
 
-bool Layer::setBackgroundColor(const half3& color, float alpha, ui::Dataspace dataspace) {
-    if (!mDrawingState.bgColorLayer && alpha == 0) {
-        return false;
-    }
-    mDrawingState.sequence++;
-    mDrawingState.modified = true;
-    setTransactionFlags(eTransactionNeeded);
-
-    if (!mDrawingState.bgColorLayer && alpha != 0) {
-        // create background color layer if one does not yet exist
-        uint32_t flags = ISurfaceComposerClient::eFXSurfaceEffect;
-        std::string name = mName + "BackgroundColorLayer";
-        mDrawingState.bgColorLayer = mFlinger->getFactory().createEffectLayer(
-                surfaceflinger::LayerCreationArgs(mFlinger.get(), nullptr, std::move(name), flags,
-                                                  LayerMetadata()));
-
-        // add to child list
-        addChild(mDrawingState.bgColorLayer);
-        mFlinger->mLayersAdded = true;
-        // set up SF to handle added color layer
-        if (isRemovedFromCurrentState()) {
-            MUTEX_ALIAS(mFlinger->mStateLock, mDrawingState.bgColorLayer->mFlinger->mStateLock);
-            mDrawingState.bgColorLayer->onRemovedFromCurrentState();
-        }
-        mFlinger->setTransactionFlags(eTransactionNeeded);
-    } else if (mDrawingState.bgColorLayer && alpha == 0) {
-        MUTEX_ALIAS(mFlinger->mStateLock, mDrawingState.bgColorLayer->mFlinger->mStateLock);
-        mDrawingState.bgColorLayer->reparent(nullptr);
-        mDrawingState.bgColorLayer = nullptr;
-        return true;
-    }
-
-    mDrawingState.bgColorLayer->setColor(color);
-    mDrawingState.bgColorLayer->setLayer(std::numeric_limits<int32_t>::min());
-    mDrawingState.bgColorLayer->setAlpha(alpha);
-    mDrawingState.bgColorLayer->setDataspace(dataspace);
-
-    return true;
-}
-
 bool Layer::setCornerRadius(float cornerRadius) {
     if (mDrawingState.cornerRadius == cornerRadius) return false;
 
@@ -1149,22 +1031,6 @@
     return true;
 }
 
-StretchEffect Layer::getStretchEffect() const {
-    if (mDrawingState.stretchEffect.hasEffect()) {
-        return mDrawingState.stretchEffect;
-    }
-
-    sp<Layer> parent = getParent();
-    if (parent != nullptr) {
-        auto effect = parent->getStretchEffect();
-        if (effect.hasEffect()) {
-            // TODO(b/179047472): Map it? Or do we make the effect be in global space?
-            return effect;
-        }
-    }
-    return StretchEffect{};
-}
-
 void Layer::setFrameTimelineVsyncForBufferTransaction(const FrameTimelineInfo& info,
                                                       nsecs_t postTime, gui::GameMode gameMode) {
     mDrawingState.postTime = postTime;
@@ -1439,32 +1305,6 @@
     mFlinger->mFrameTracer->onDestroy(layerId);
 }
 
-size_t Layer::getDescendantCount() const {
-    size_t count = 0;
-    for (const sp<Layer>& child : mDrawingChildren) {
-        count += 1 + child->getChildrenCount();
-    }
-    return count;
-}
-
-void Layer::addChild(const sp<Layer>& layer) {
-    mFlinger->mSomeChildrenChanged = true;
-    setTransactionFlags(eTransactionNeeded);
-
-    mCurrentChildren.add(layer);
-    layer->setParent(sp<Layer>::fromExisting(this));
-}
-
-ssize_t Layer::removeChild(const sp<Layer>& layer) {
-    mFlinger->mSomeChildrenChanged = true;
-    setTransactionFlags(eTransactionNeeded);
-
-    layer->setParent(nullptr);
-    const auto removeResult = mCurrentChildren.remove(layer);
-
-    return removeResult;
-}
-
 void Layer::setChildrenDrawingParent(const sp<Layer>& newParent) {
     for (const sp<Layer>& child : mDrawingChildren) {
         child->mDrawingParent = newParent;
@@ -1475,39 +1315,6 @@
     }
 }
 
-bool Layer::reparent(const sp<IBinder>& newParentHandle) {
-    sp<Layer> newParent;
-    if (newParentHandle != nullptr) {
-        newParent = LayerHandle::getLayer(newParentHandle);
-        if (newParent == nullptr) {
-            ALOGE("Unable to promote Layer handle");
-            return false;
-        }
-        if (newParent == this) {
-            ALOGE("Invalid attempt to reparent Layer (%s) to itself", getName().c_str());
-            return false;
-        }
-    }
-
-    sp<Layer> parent = getParent();
-    if (parent != nullptr) {
-        parent->removeChild(sp<Layer>::fromExisting(this));
-    }
-
-    if (newParentHandle != nullptr) {
-        newParent->addChild(sp<Layer>::fromExisting(this));
-        if (!newParent->isRemovedFromCurrentState()) {
-            addToCurrentState();
-        } else {
-            onRemovedFromCurrentState();
-        }
-    } else {
-        onRemovedFromCurrentState();
-    }
-
-    return true;
-}
-
 bool Layer::setColorTransform(const mat4& matrix) {
     static const mat4 identityMatrix = mat4();
 
@@ -1590,167 +1397,6 @@
     return traverse;
 }
 
-/**
- * Negatively signed relatives are before 'this' in Z-order.
- */
-void Layer::traverseInZOrder(LayerVector::StateSet stateSet, const LayerVector::Visitor& visitor) {
-    // In the case we have other layers who are using a relative Z to us, makeTraversalList will
-    // produce a new list for traversing, including our relatives, and not including our children
-    // who are relatives of another surface. In the case that there are no relative Z,
-    // makeTraversalList returns our children directly to avoid significant overhead.
-    // However in this case we need to take the responsibility for filtering children which
-    // are relatives of another surface here.
-    bool skipRelativeZUsers = false;
-    const LayerVector list = makeTraversalList(stateSet, &skipRelativeZUsers);
-
-    size_t i = 0;
-    for (; i < list.size(); i++) {
-        const auto& relative = list[i];
-        if (skipRelativeZUsers && relative->usingRelativeZ(stateSet)) {
-            continue;
-        }
-
-        if (relative->getZ(stateSet) >= 0) {
-            break;
-        }
-        relative->traverseInZOrder(stateSet, visitor);
-    }
-
-    visitor(this);
-    for (; i < list.size(); i++) {
-        const auto& relative = list[i];
-
-        if (skipRelativeZUsers && relative->usingRelativeZ(stateSet)) {
-            continue;
-        }
-        relative->traverseInZOrder(stateSet, visitor);
-    }
-}
-
-/**
- * Positively signed relatives are before 'this' in reverse Z-order.
- */
-void Layer::traverseInReverseZOrder(LayerVector::StateSet stateSet,
-                                    const LayerVector::Visitor& visitor) {
-    // See traverseInZOrder for documentation.
-    bool skipRelativeZUsers = false;
-    LayerVector list = makeTraversalList(stateSet, &skipRelativeZUsers);
-
-    int32_t i = 0;
-    for (i = int32_t(list.size()) - 1; i >= 0; i--) {
-        const auto& relative = list[i];
-
-        if (skipRelativeZUsers && relative->usingRelativeZ(stateSet)) {
-            continue;
-        }
-
-        if (relative->getZ(stateSet) < 0) {
-            break;
-        }
-        relative->traverseInReverseZOrder(stateSet, visitor);
-    }
-    visitor(this);
-    for (; i >= 0; i--) {
-        const auto& relative = list[i];
-
-        if (skipRelativeZUsers && relative->usingRelativeZ(stateSet)) {
-            continue;
-        }
-
-        relative->traverseInReverseZOrder(stateSet, visitor);
-    }
-}
-
-void Layer::traverse(LayerVector::StateSet state, const LayerVector::Visitor& visitor) {
-    visitor(this);
-    const LayerVector& children =
-          state == LayerVector::StateSet::Drawing ? mDrawingChildren : mCurrentChildren;
-    for (const sp<Layer>& child : children) {
-        child->traverse(state, visitor);
-    }
-}
-
-void Layer::traverseChildren(const LayerVector::Visitor& visitor) {
-    for (const sp<Layer>& child : mDrawingChildren) {
-        visitor(child.get());
-    }
-}
-
-LayerVector Layer::makeChildrenTraversalList(LayerVector::StateSet stateSet,
-                                             const std::vector<Layer*>& layersInTree) {
-    LOG_ALWAYS_FATAL_IF(stateSet == LayerVector::StateSet::Invalid,
-                        "makeTraversalList received invalid stateSet");
-    const bool useDrawing = stateSet == LayerVector::StateSet::Drawing;
-    const LayerVector& children = useDrawing ? mDrawingChildren : mCurrentChildren;
-    const State& state = useDrawing ? mDrawingState : mDrawingState;
-
-    LayerVector traverse(stateSet);
-    for (const wp<Layer>& weakRelative : state.zOrderRelatives) {
-        sp<Layer> strongRelative = weakRelative.promote();
-        // Only add relative layers that are also descendents of the top most parent of the tree.
-        // If a relative layer is not a descendent, then it should be ignored.
-        if (std::binary_search(layersInTree.begin(), layersInTree.end(), strongRelative.get())) {
-            traverse.add(strongRelative);
-        }
-    }
-
-    for (const sp<Layer>& child : children) {
-        const State& childState = useDrawing ? child->mDrawingState : child->mDrawingState;
-        // If a layer has a relativeOf layer, only ignore if the layer it's relative to is a
-        // descendent of the top most parent of the tree. If it's not a descendent, then just add
-        // the child here since it won't be added later as a relative.
-        if (std::binary_search(layersInTree.begin(), layersInTree.end(),
-                               childState.zOrderRelativeOf.promote().get())) {
-            continue;
-        }
-        traverse.add(child);
-    }
-
-    return traverse;
-}
-
-void Layer::traverseChildrenInZOrderInner(const std::vector<Layer*>& layersInTree,
-                                          LayerVector::StateSet stateSet,
-                                          const LayerVector::Visitor& visitor) {
-    const LayerVector list = makeChildrenTraversalList(stateSet, layersInTree);
-
-    size_t i = 0;
-    for (; i < list.size(); i++) {
-        const auto& relative = list[i];
-        if (relative->getZ(stateSet) >= 0) {
-            break;
-        }
-        relative->traverseChildrenInZOrderInner(layersInTree, stateSet, visitor);
-    }
-
-    visitor(this);
-    for (; i < list.size(); i++) {
-        const auto& relative = list[i];
-        relative->traverseChildrenInZOrderInner(layersInTree, stateSet, visitor);
-    }
-}
-
-std::vector<Layer*> Layer::getLayersInTree(LayerVector::StateSet stateSet) {
-    const bool useDrawing = stateSet == LayerVector::StateSet::Drawing;
-    const LayerVector& children = useDrawing ? mDrawingChildren : mCurrentChildren;
-
-    std::vector<Layer*> layersInTree = {this};
-    for (size_t i = 0; i < children.size(); i++) {
-        const auto& child = children[i];
-        std::vector<Layer*> childLayers = child->getLayersInTree(stateSet);
-        layersInTree.insert(layersInTree.end(), childLayers.cbegin(), childLayers.cend());
-    }
-
-    return layersInTree;
-}
-
-void Layer::traverseChildrenInZOrder(LayerVector::StateSet stateSet,
-                                     const LayerVector::Visitor& visitor) {
-    std::vector<Layer*> layersInTree = getLayersInTree(stateSet);
-    std::sort(layersInTree.begin(), layersInTree.end());
-    traverseChildrenInZOrderInner(layersInTree, stateSet, visitor);
-}
-
 ui::Transform Layer::getTransform() const {
     return mEffectiveTransform;
 }
@@ -1861,27 +1507,6 @@
     return false;
 }
 
-void Layer::commitChildList() {
-    for (size_t i = 0; i < mCurrentChildren.size(); i++) {
-        const auto& child = mCurrentChildren[i];
-        child->commitChildList();
-    }
-    mDrawingChildren = mCurrentChildren;
-    mDrawingParent = mCurrentParent;
-    if (CC_UNLIKELY(usingRelativeZ(LayerVector::StateSet::Drawing))) {
-        auto zOrderRelativeOf = mDrawingState.zOrderRelativeOf.promote();
-        if (zOrderRelativeOf == nullptr) return;
-        if (findInHierarchy(zOrderRelativeOf)) {
-            ALOGE("Detected Z ordering loop between %s and %s", mName.c_str(),
-                  zOrderRelativeOf->mName.c_str());
-            ALOGE("Severing rel Z loop, potentially dangerous");
-            mDrawingState.isRelativeOf = false;
-            zOrderRelativeOf->removeZOrderRelative(wp<Layer>::fromExisting(this));
-        }
-    }
-}
-
-
 void Layer::setInputInfo(const WindowInfo& info) {
     mDrawingState.inputInfo = info;
     mDrawingState.touchableRegionCrop =
@@ -2048,10 +1673,6 @@
                                    [&]() { return layerInfo->mutable_destination_frame(); });
 }
 
-bool Layer::isRemovedFromCurrentState() const  {
-    return mRemovedFromDrawingState;
-}
-
 // Applies the given transform to the region, while protecting against overflows caused by any
 // offsets. If applying the offset in the transform to any of the Rects in the region would result
 // in an overflow, they are not added to the output Region.
@@ -2243,16 +1864,6 @@
         info.inputConfig |= WindowInfo::InputConfig::TRUSTED_OVERLAY;
     }
 
-    // If the layer is a clone, we need to crop the input region to cloned root to prevent
-    // touches from going outside the cloned area.
-    if (isClone()) {
-        info.inputConfig |= WindowInfo::InputConfig::CLONE;
-        if (const sp<Layer> clonedRoot = getClonedRoot()) {
-            const Rect rect = displayTransform.transform(Rect{clonedRoot->mScreenBounds});
-            info.touchableRegion = info.touchableRegion.intersect(rect);
-        }
-    }
-
     Rect bufferSize = getBufferSize(getDrawingState());
     info.contentSize = Size(bufferSize.width(), bufferSize.height());
 
@@ -2280,16 +1891,6 @@
     return Rect{layerToDisplay.transform(croppedInputBounds)};
 }
 
-sp<Layer> Layer::getClonedRoot() {
-    if (mClonedChild != nullptr) {
-        return sp<Layer>::fromExisting(this);
-    }
-    if (mDrawingParent == nullptr || mDrawingParent.promote() == nullptr) {
-        return nullptr;
-    }
-    return mDrawingParent.promote()->getClonedRoot();
-}
-
 bool Layer::hasInputInfo() const {
     return mDrawingState.inputInfo.token != nullptr ||
             mDrawingState.inputInfo.inputConfig.test(WindowInfo::InputConfig::NO_INPUT_CHANNEL);
@@ -2329,170 +1930,6 @@
     return outputLayer ? outputLayer->getState().visibleRegion : Region();
 }
 
-void Layer::updateCloneBufferInfo() {
-    if (!isClone() || !isClonedFromAlive()) {
-        return;
-    }
-
-    sp<Layer> clonedFrom = getClonedFrom();
-    mBufferInfo = clonedFrom->mBufferInfo;
-    mSidebandStream = clonedFrom->mSidebandStream;
-    surfaceDamageRegion = clonedFrom->surfaceDamageRegion;
-    mCurrentFrameNumber = clonedFrom->mCurrentFrameNumber.load();
-    mPreviousFrameNumber = clonedFrom->mPreviousFrameNumber;
-
-    // After buffer info is updated, the drawingState from the real layer needs to be copied into
-    // the cloned. This is because some properties of drawingState can change when latchBuffer is
-    // called. However, copying the drawingState would also overwrite the cloned layer's relatives
-    // and touchableRegionCrop. Therefore, temporarily store the relatives so they can be set in
-    // the cloned drawingState again.
-    wp<Layer> tmpZOrderRelativeOf = mDrawingState.zOrderRelativeOf;
-    SortedVector<wp<Layer>> tmpZOrderRelatives = mDrawingState.zOrderRelatives;
-    wp<Layer> tmpTouchableRegionCrop = mDrawingState.touchableRegionCrop;
-    WindowInfo tmpInputInfo = mDrawingState.inputInfo;
-
-    cloneDrawingState(clonedFrom.get());
-
-    mDrawingState.touchableRegionCrop = tmpTouchableRegionCrop;
-    mDrawingState.zOrderRelativeOf = tmpZOrderRelativeOf;
-    mDrawingState.zOrderRelatives = tmpZOrderRelatives;
-    mDrawingState.inputInfo = tmpInputInfo;
-}
-
-bool Layer::updateMirrorInfo(const std::deque<Layer*>& cloneRootsPendingUpdates) {
-    if (mClonedChild == nullptr || !mClonedChild->isClonedFromAlive()) {
-        // If mClonedChild is null, there is nothing to mirror. If isClonedFromAlive returns false,
-        // it means that there is a clone, but the layer it was cloned from has been destroyed. In
-        // that case, we want to delete the reference to the clone since we want it to get
-        // destroyed. The root, this layer, will still be around since the client can continue
-        // to hold a reference, but no cloned layers will be displayed.
-        mClonedChild = nullptr;
-        return true;
-    }
-
-    std::map<sp<Layer>, sp<Layer>> clonedLayersMap;
-    // If the real layer exists and is in current state, add the clone as a child of the root.
-    // There's no need to remove from drawingState when the layer is offscreen since currentState is
-    // copied to drawingState for the root layer. So the clonedChild is always removed from
-    // drawingState and then needs to be added back each traversal.
-    if (!mClonedChild->getClonedFrom()->isRemovedFromCurrentState()) {
-        addChildToDrawing(mClonedChild);
-    }
-
-    mClonedChild->updateClonedDrawingState(clonedLayersMap);
-    mClonedChild->updateClonedChildren(sp<Layer>::fromExisting(this), clonedLayersMap);
-    mClonedChild->updateClonedRelatives(clonedLayersMap);
-
-    for (Layer* root : cloneRootsPendingUpdates) {
-        if (clonedLayersMap.find(sp<Layer>::fromExisting(root)) != clonedLayersMap.end()) {
-            return false;
-        }
-    }
-    return true;
-}
-
-void Layer::updateClonedDrawingState(std::map<sp<Layer>, sp<Layer>>& clonedLayersMap) {
-    // If the layer the clone was cloned from is alive, copy the content of the drawingState
-    // to the clone. If the real layer is no longer alive, continue traversing the children
-    // since we may be able to pull out other children that are still alive.
-    if (isClonedFromAlive()) {
-        sp<Layer> clonedFrom = getClonedFrom();
-        cloneDrawingState(clonedFrom.get());
-        clonedLayersMap.emplace(clonedFrom, sp<Layer>::fromExisting(this));
-    }
-
-    // The clone layer may have children in drawingState since they may have been created and
-    // added from a previous request to updateMirorInfo. This is to ensure we don't recreate clones
-    // that already exist, since we can just re-use them.
-    // The drawingChildren will not get overwritten by the currentChildren since the clones are
-    // not updated in the regular traversal. They are skipped since the root will lose the
-    // reference to them when it copies its currentChildren to drawing.
-    for (sp<Layer>& child : mDrawingChildren) {
-        child->updateClonedDrawingState(clonedLayersMap);
-    }
-}
-
-void Layer::updateClonedChildren(const sp<Layer>& mirrorRoot,
-                                 std::map<sp<Layer>, sp<Layer>>& clonedLayersMap) {
-    mDrawingChildren.clear();
-
-    if (!isClonedFromAlive()) {
-        return;
-    }
-
-    sp<Layer> clonedFrom = getClonedFrom();
-    for (sp<Layer>& child : clonedFrom->mDrawingChildren) {
-        if (child == mirrorRoot) {
-            // This is to avoid cyclical mirroring.
-            continue;
-        }
-        sp<Layer> clonedChild = clonedLayersMap[child];
-        if (clonedChild == nullptr) {
-            clonedChild = child->createClone();
-            clonedLayersMap[child] = clonedChild;
-        }
-        addChildToDrawing(clonedChild);
-        clonedChild->updateClonedChildren(mirrorRoot, clonedLayersMap);
-    }
-}
-
-void Layer::updateClonedInputInfo(const std::map<sp<Layer>, sp<Layer>>& clonedLayersMap) {
-    auto cropLayer = mDrawingState.touchableRegionCrop.promote();
-    if (cropLayer != nullptr) {
-        if (clonedLayersMap.count(cropLayer) == 0) {
-            // Real layer had a crop layer but it's not in the cloned hierarchy. Just set to
-            // self as crop layer to avoid going outside bounds.
-            mDrawingState.touchableRegionCrop = wp<Layer>::fromExisting(this);
-        } else {
-            const sp<Layer>& clonedCropLayer = clonedLayersMap.at(cropLayer);
-            mDrawingState.touchableRegionCrop = clonedCropLayer;
-        }
-    }
-    // Cloned layers shouldn't handle watch outside since their z order is not determined by
-    // WM or the client.
-    mDrawingState.inputInfo.setInputConfig(WindowInfo::InputConfig::WATCH_OUTSIDE_TOUCH, false);
-}
-
-void Layer::updateClonedRelatives(const std::map<sp<Layer>, sp<Layer>>& clonedLayersMap) {
-    mDrawingState.zOrderRelativeOf = wp<Layer>();
-    mDrawingState.zOrderRelatives.clear();
-
-    if (!isClonedFromAlive()) {
-        return;
-    }
-
-    const sp<Layer>& clonedFrom = getClonedFrom();
-    for (wp<Layer>& relativeWeak : clonedFrom->mDrawingState.zOrderRelatives) {
-        const sp<Layer>& relative = relativeWeak.promote();
-        if (clonedLayersMap.count(relative) > 0) {
-            auto& clonedRelative = clonedLayersMap.at(relative);
-            mDrawingState.zOrderRelatives.add(clonedRelative);
-        }
-    }
-
-    // Check if the relativeLayer for the real layer is part of the cloned hierarchy.
-    // It's possible that the layer it's relative to is outside the requested cloned hierarchy.
-    // In that case, we treat the layer as if the relativeOf has been removed. This way, it will
-    // still traverse the children, but the layer with the missing relativeOf will not be shown
-    // on screen.
-    const sp<Layer>& relativeOf = clonedFrom->mDrawingState.zOrderRelativeOf.promote();
-    if (clonedLayersMap.count(relativeOf) > 0) {
-        const sp<Layer>& clonedRelativeOf = clonedLayersMap.at(relativeOf);
-        mDrawingState.zOrderRelativeOf = clonedRelativeOf;
-    }
-
-    updateClonedInputInfo(clonedLayersMap);
-
-    for (sp<Layer>& child : mDrawingChildren) {
-        child->updateClonedRelatives(clonedLayersMap);
-    }
-}
-
-void Layer::addChildToDrawing(const sp<Layer>& layer) {
-    mDrawingChildren.add(layer);
-    layer->mDrawingParent = sp<Layer>::fromExisting(this);
-}
-
 bool Layer::isInternalDisplayOverlay() const {
     const State& s(mDrawingState);
     if (s.flags & layer_state_t::eLayerSkipScreenshot) {
@@ -2503,12 +1940,6 @@
     return parent && parent->isInternalDisplayOverlay();
 }
 
-void Layer::setClonedChild(const sp<Layer>& clonedChild) {
-    mClonedChild = clonedChild;
-    mHadClonedChild = true;
-    mFlinger->mLayerMirrorRoots.push_back(this);
-}
-
 bool Layer::setDropInputMode(gui::DropInputMode mode) {
     if (mDrawingState.dropInputMode == mode) {
         return false;
@@ -2517,27 +1948,27 @@
     return true;
 }
 
-void Layer::cloneDrawingState(const Layer* from) {
-    mDrawingState = from->mDrawingState;
-    // Skip callback info since they are not applicable for cloned layers.
-    mDrawingState.releaseBufferListener = nullptr;
-    // TODO (b/238781169) currently broken for mirror layers because we do not
-    // track release fences for mirror layers composed on other displays
-    mDrawingState.callbackHandles = {};
-}
-
 void Layer::callReleaseBufferCallback(const sp<ITransactionCompletedListener>& listener,
                                       const sp<GraphicBuffer>& buffer, uint64_t framenumber,
                                       const sp<Fence>& releaseFence) {
-    if (!listener) {
+    if (!listener && !mBufferReleaseChannel) {
         return;
     }
+
     SFTRACE_FORMAT_INSTANT("callReleaseBufferCallback %s - %" PRIu64, getDebugName(), framenumber);
+
+    ReleaseCallbackId callbackId{buffer->getId(), framenumber};
+    const sp<Fence>& fence = releaseFence ? releaseFence : Fence::NO_FENCE;
     uint32_t currentMaxAcquiredBufferCount =
             mFlinger->getMaxAcquiredBufferCountForCurrentRefreshRate(mOwnerUid);
-    listener->onReleaseBuffer({buffer->getId(), framenumber},
-                              releaseFence ? releaseFence : Fence::NO_FENCE,
-                              currentMaxAcquiredBufferCount);
+
+    if (listener) {
+        listener->onReleaseBuffer(callbackId, fence, currentMaxAcquiredBufferCount);
+    }
+
+    if (mBufferReleaseChannel) {
+        mBufferReleaseChannel->writeReleaseFence(callbackId, fence, currentMaxAcquiredBufferCount);
+    }
 }
 
 sp<CallbackHandle> Layer::findCallbackHandle() {
@@ -2655,6 +2086,7 @@
 
 void Layer::releasePendingBuffer(nsecs_t dequeueReadyTime) {
     for (const auto& handle : mDrawingState.callbackHandles) {
+        handle->bufferReleaseChannel = mBufferReleaseChannel;
         handle->transformHint = mTransformHint;
         handle->dequeueReadyTime = dequeueReadyTime;
         handle->currentMaxAcquiredBufferCount =
@@ -3372,13 +2804,6 @@
     }
 }
 
-sp<Layer> Layer::createClone() {
-    surfaceflinger::LayerCreationArgs args(mFlinger.get(), nullptr, mName + " (Mirror)", 0,
-                                           LayerMetadata());
-    sp<Layer> layer = mFlinger->getFactory().createBufferStateLayer(args);
-    return layer;
-}
-
 void Layer::decrementPendingBufferCount() {
     int32_t pendingBuffers = --mPendingBufferTransactions;
     tracePendingBufferCount(pendingBuffers);
@@ -4093,6 +3518,11 @@
     return haveTrustedPresentationListener;
 }
 
+void Layer::setBufferReleaseChannel(
+        const std::shared_ptr<gui::BufferReleaseChannel::ProducerEndpoint>& channel) {
+    mBufferReleaseChannel = channel;
+}
+
 void Layer::updateLastLatchTime(nsecs_t latchTime) {
     mLastLatchTime = latchTime;
 }

diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index f6eed63..1e4f2dc 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h

@@ -250,8 +250,6 @@
     // true if this layer is visible, false otherwise
     virtual bool isVisible() const;
 
-    virtual sp<Layer> createClone();
-
     // Set a 2x2 transformation matrix on the layer. This transform
     // will be applied after parent transforms, but before any final
     // producer specified transform.
@@ -297,7 +295,6 @@
 
     virtual bool setMetadata(const LayerMetadata& data);
     virtual void setChildrenDrawingParent(const sp<Layer>&);
-    virtual bool reparent(const sp<IBinder>& newParentHandle) REQUIRES(mFlinger->mStateLock);
     virtual bool setColorTransform(const mat4& matrix);
     virtual mat4 getColorTransform() const;
     virtual bool hasColorTransform() const;
@@ -326,8 +323,6 @@
                            gui::GameMode gameMode);
     bool setTransactionCompletedListeners(const std::vector<sp<CallbackHandle>>& /*handles*/,
                                           bool willPresent);
-    virtual bool setBackgroundColor(const half3& color, float alpha, ui::Dataspace dataspace)
-            REQUIRES(mFlinger->mStateLock);
     virtual bool setColorSpaceAgnostic(const bool agnostic);
     virtual bool setDimmingEnabled(const bool dimmingEnabled);
     virtual bool setFixedTransformHint(ui::Transform::RotationFlags fixedTransformHint);
@@ -426,7 +421,6 @@
 
     // from graphics API
     static ui::Dataspace translateDataspace(ui::Dataspace dataspace);
-    void updateCloneBufferInfo();
     uint64_t mPreviousFrameNumber = 0;
 
     void onCompositionPresented(const DisplayDevice*,
@@ -543,6 +537,7 @@
     };
 
     BufferInfo mBufferInfo;
+    std::shared_ptr<gui::BufferReleaseChannel::ProducerEndpoint> mBufferReleaseChannel;
 
     // implements compositionengine::LayerFE
     const compositionengine::LayerFECompositionState* getCompositionState() const;
@@ -638,8 +633,6 @@
         return {getLayerStack(), isInternalDisplayOverlay()};
     }
 
-    bool isRemovedFromCurrentState() const;
-
     perfetto::protos::LayerProto* writeToProto(perfetto::protos::LayersProto& layersProto,
                                                uint32_t traceFlags);
     void writeCompositionStateToProto(perfetto::protos::LayerProto* layerProto,
@@ -657,8 +650,6 @@
 
     gui::WindowInfo::Type getWindowType() const { return mWindowType; }
 
-    bool updateMirrorInfo(const std::deque<Layer*>& cloneRootsPendingUpdates);
-
     /*
      * doTransaction - process the transaction. This is a good place to figure
      * out which attributes of the surface have changed.
@@ -671,22 +662,6 @@
      */
     void removeRelativeZ(const std::vector<Layer*>& layersInTree);
 
-    /*
-     * Remove from current state and mark for removal.
-     */
-    void removeFromCurrentState() REQUIRES(mFlinger->mStateLock);
-
-    /*
-     * called with the state lock from a binder thread when the layer is
-     * removed from the current list to the pending removal list
-     */
-    void onRemovedFromCurrentState() REQUIRES(mFlinger->mStateLock);
-
-    /*
-     * Called when the layer is added back to the current state list.
-     */
-    void addToCurrentState();
-
     inline const State& getDrawingState() const { return mDrawingState; }
     inline State& getDrawingState() { return mDrawingState; }
 
@@ -715,57 +690,9 @@
     // is ready to acquire a buffer.
     ui::Transform::RotationFlags getFixedTransformHint() const;
 
-    /**
-     * Traverse this layer and it's hierarchy of children directly. Unlike traverseInZOrder
-     * which will not emit children who have relativeZOrder to another layer, this method
-     * just directly emits all children. It also emits them in no particular order.
-     * So this method is not suitable for graphical operations, as it doesn't represent
-     * the scene state, but it's also more efficient than traverseInZOrder and so useful for
-     * book-keeping.
-     */
-    void traverse(LayerVector::StateSet, const LayerVector::Visitor&);
-    void traverseInReverseZOrder(LayerVector::StateSet, const LayerVector::Visitor&);
-    void traverseInZOrder(LayerVector::StateSet, const LayerVector::Visitor&);
-    void traverseChildren(const LayerVector::Visitor&);
-
-    /**
-     * Traverse only children in z order, ignoring relative layers that are not children of the
-     * parent.
-     */
-    void traverseChildrenInZOrder(LayerVector::StateSet, const LayerVector::Visitor&);
-
-    size_t getDescendantCount() const;
-    size_t getChildrenCount() const { return mDrawingChildren.size(); }
     bool isHandleAlive() const { return mHandleAlive; }
     bool onHandleDestroyed() { return mHandleAlive = false; }
-
-    // ONLY CALL THIS FROM THE LAYER DTOR!
-    // See b/141111965.  We need to add current children to offscreen layers in
-    // the layer dtor so as not to dangle layers.  Since the layer has not
-    // committed its transaction when the layer is destroyed, we must add
-    // current children.  This is safe in the dtor as we will no longer update
-    // the current state, but should not be called anywhere else!
-    LayerVector& getCurrentChildren() { return mCurrentChildren; }
-
-    void addChild(const sp<Layer>&);
-    // Returns index if removed, or negative value otherwise
-    // for symmetry with Vector::remove
-    ssize_t removeChild(const sp<Layer>& layer);
-    sp<Layer> getParent() const { return mCurrentParent.promote(); }
-
-    // Should be called with the surfaceflinger statelock held
-    bool isAtRoot() const { return mIsAtRoot; }
-    void setIsAtRoot(bool isAtRoot) { mIsAtRoot = isAtRoot; }
-
-    bool hasParent() const { return getParent() != nullptr; }
     Rect getScreenBounds(bool reduceTransparentRegion = true) const;
-    bool setChildLayer(const sp<Layer>& childLayer, int32_t z);
-    bool setChildRelativeLayer(const sp<Layer>& childLayer,
-            const sp<IBinder>& relativeToHandle, int32_t relativeZ);
-
-    // Copy the current list of children to the drawing state. Called by
-    // SurfaceFlinger to complete a transaction.
-    void commitChildList();
     int32_t getZ(LayerVector::StateSet) const;
 
     /**
@@ -798,6 +725,8 @@
 
     bool setTrustedPresentationInfo(TrustedPresentationThresholds const& thresholds,
                                     TrustedPresentationListener const& listener);
+    void setBufferReleaseChannel(
+            const std::shared_ptr<gui::BufferReleaseChannel::ProducerEndpoint>& channel);
 
     // Creates a new handle each time, so we only expect
     // this to be called once.
@@ -823,15 +752,6 @@
 
     int32_t getOwnerAppId() { return mOwnerAppId; }
 
-    // This layer is not a clone, but it's the parent to the cloned hierarchy. The
-    // variable mClonedChild represents the top layer that will be cloned so this
-    // layer will be the parent of mClonedChild.
-    // The layers in the cloned hierarchy will match the lifetime of the real layers. That is
-    // if the real layer is destroyed, then the clone layer will also be destroyed.
-    sp<Layer> mClonedChild;
-    bool mHadClonedChild = false;
-    void setClonedChild(const sp<Layer>& mClonedChild);
-
     mutable bool contentDirty{false};
     Region surfaceDamageRegion;
 
@@ -855,7 +775,6 @@
     }
 
     bool setStretchEffect(const StretchEffect& effect);
-    StretchEffect getStretchEffect() const;
 
     bool setBufferCrop(const Rect& /* bufferCrop */);
     bool setDestinationFrame(const Rect& /* destinationFrame */);
@@ -877,10 +796,6 @@
     // CompositionEngine to create a single path for composing layers.
     void updateSnapshot(bool updateGeometry);
     void updateChildrenSnapshots(bool updateGeometry);
-    sp<Layer> getClonedFrom() const {
-        return mClonedFrom != nullptr ? mClonedFrom.promote() : nullptr;
-    }
-    bool isClone() { return mClonedFrom != nullptr; }
 
     bool willPresentCurrentTransaction() const;
 
@@ -946,16 +861,6 @@
     void preparePerFrameEffectsCompositionState();
     void gatherBufferInfo();
 
-    bool isClonedFromAlive() { return getClonedFrom() != nullptr; }
-
-    void cloneDrawingState(const Layer* from);
-    void updateClonedDrawingState(std::map<sp<Layer>, sp<Layer>>& clonedLayersMap);
-    void updateClonedChildren(const sp<Layer>& mirrorRoot,
-                              std::map<sp<Layer>, sp<Layer>>& clonedLayersMap);
-    void updateClonedRelatives(const std::map<sp<Layer>, sp<Layer>>& clonedLayersMap);
-    void addChildToDrawing(const sp<Layer>&);
-    void updateClonedInputInfo(const std::map<sp<Layer>, sp<Layer>>& clonedLayersMap);
-
     void prepareBasicGeometryCompositionState();
     void prepareGeometryCompositionState();
     void prepareCursorCompositionState();
@@ -1086,19 +991,6 @@
             const DisplayDevice&) const;
     aidl::android::hardware::graphics::composer3::Composition getCompositionType(
             const compositionengine::OutputLayer*) const;
-    /**
-     * Returns an unsorted vector of all layers that are part of this tree.
-     * That includes the current layer and all its descendants.
-     */
-    std::vector<Layer*> getLayersInTree(LayerVector::StateSet);
-    /**
-     * Traverses layers that are part of this tree in the correct z order.
-     * layersInTree must be sorted before calling this method.
-     */
-    void traverseChildrenInZOrderInner(const std::vector<Layer*>& layersInTree,
-                                       LayerVector::StateSet, const LayerVector::Visitor&);
-    LayerVector makeChildrenTraversalList(LayerVector::StateSet,
-                                          const std::vector<Layer*>& layersInTree);
 
     bool propagateFrameRateForLayerTree(FrameRate parentFrameRate, bool overrideChildren,
                                         bool* transactionNeeded);
@@ -1107,10 +999,6 @@
     gui::DropInputMode getDropInputMode() const;
     void handleDropInputMode(gui::WindowInfo& info) const;
 
-    // Find the root of the cloned hierarchy, this means the first non cloned parent.
-    // This will return null if first non cloned parent is not found.
-    sp<Layer> getClonedRoot();
-
     // Finds the top most layer in the hierarchy. This will find the root Layer where the parent is
     // null.
     sp<Layer> getRootLayer();
@@ -1185,12 +1073,6 @@
 
     bool mGetHandleCalled = false;
 
-    // The current layer is a clone of mClonedFrom. This means that this layer will update it's
-    // properties based on mClonedFrom. When mClonedFrom latches a new buffer for BufferLayers,
-    // this layer will update it's buffer. When mClonedFrom updates it's drawing state, children,
-    // and relatives, this layer will update as well.
-    wp<Layer> mClonedFrom;
-
     // The inherited shadow radius after taking into account the layer hierarchy. This is the
     // final shadow radius for this layer. If a shadow is specified for a layer, then effective
     // shadow radius is the set shadow radius, otherwise its the parent's shadow radius.

diff --git a/services/surfaceflinger/LayerProtoHelper.cpp b/services/surfaceflinger/LayerProtoHelper.cpp
index 0d2987c..885c3d3 100644
--- a/services/surfaceflinger/LayerProtoHelper.cpp
+++ b/services/surfaceflinger/LayerProtoHelper.cpp

@@ -263,7 +263,7 @@
     outRegion.bottom = proto.bottom();
 }
 
-perfetto::protos::LayersProto LayerProtoFromSnapshotGenerator::generate(
+LayerProtoFromSnapshotGenerator& LayerProtoFromSnapshotGenerator::with(
         const frontend::LayerHierarchy& root) {
     mLayersProto.clear_layers();
     mVisitedLayers.clear();
@@ -305,9 +305,40 @@
         }
     }
 
-    mDefaultSnapshots.clear();
-    mChildToRelativeParent.clear();
-    return std::move(mLayersProto);
+    return *this;
+}
+
+LayerProtoFromSnapshotGenerator& LayerProtoFromSnapshotGenerator::withOffscreenLayers(
+        const frontend::LayerHierarchy& offscreenRoot) {
+    // Add a fake invisible root layer to the proto output and parent all the offscreen layers to
+    // it.
+    perfetto::protos::LayerProto* rootProto = mLayersProto.add_layers();
+    const int32_t offscreenRootLayerId = INT32_MAX - 2;
+    rootProto->set_id(offscreenRootLayerId);
+    rootProto->set_name("Offscreen Root");
+    rootProto->set_parent(-1);
+
+    perfetto::protos::LayersProto offscreenLayers =
+            LayerProtoFromSnapshotGenerator(mSnapshotBuilder, mDisplayInfos, mLegacyLayers,
+                                            mTraceFlags)
+                    .with(offscreenRoot)
+                    .generate();
+
+    for (int i = 0; i < offscreenLayers.layers_size(); i++) {
+        perfetto::protos::LayerProto* layerProto = offscreenLayers.mutable_layers()->Mutable(i);
+        if (layerProto->parent() == -1) {
+            layerProto->set_parent(offscreenRootLayerId);
+            // Add layer as child of the fake root
+            rootProto->add_children(layerProto->id());
+        }
+    }
+
+    mLayersProto.mutable_layers()->Reserve(mLayersProto.layers_size() +
+                                           offscreenLayers.layers_size());
+    std::copy(offscreenLayers.layers().begin(), offscreenLayers.layers().end(),
+              RepeatedFieldBackInserter(mLayersProto.mutable_layers()));
+
+    return *this;
 }
 
 frontend::LayerSnapshot* LayerProtoFromSnapshotGenerator::getSnapshot(

diff --git a/services/surfaceflinger/LayerProtoHelper.h b/services/surfaceflinger/LayerProtoHelper.h
index d672012..c0198b6 100644
--- a/services/surfaceflinger/LayerProtoHelper.h
+++ b/services/surfaceflinger/LayerProtoHelper.h

@@ -88,7 +88,12 @@
             mLegacyLayers(legacyLayers),
             mDisplayInfos(displayInfos),
             mTraceFlags(traceFlags) {}
-    perfetto::protos::LayersProto generate(const frontend::LayerHierarchy& root);
+    LayerProtoFromSnapshotGenerator& with(const frontend::LayerHierarchy& root);
+    // Creates a fake root and adds all offscreen layers from the passed in hierarchy to the fake
+    // root
+    LayerProtoFromSnapshotGenerator& withOffscreenLayers(
+            const frontend::LayerHierarchy& offscreenRoot);
+    perfetto::protos::LayersProto generate() { return mLayersProto; };
 
 private:
     void writeHierarchyToProto(const frontend::LayerHierarchy& root,

diff --git a/services/surfaceflinger/LayerVector.cpp b/services/surfaceflinger/LayerVector.cpp
index f52e60d..ff0a955 100644
--- a/services/surfaceflinger/LayerVector.cpp
+++ b/services/surfaceflinger/LayerVector.cpp

@@ -61,35 +61,6 @@
     return (l->sequence > r->sequence) ? 1 : -1;
 }
 
-void LayerVector::traverseInZOrder(StateSet stateSet, const Visitor& visitor) const {
-    for (size_t i = 0; i < size(); i++) {
-        const auto& layer = (*this)[i];
-        auto& state = layer->getDrawingState();
-        if (state.isRelativeOf) {
-            continue;
-        }
-        layer->traverseInZOrder(stateSet, visitor);
-    }
-}
-
-void LayerVector::traverseInReverseZOrder(StateSet stateSet, const Visitor& visitor) const {
-    for (auto i = static_cast<int64_t>(size()) - 1; i >= 0; i--) {
-        const auto& layer = (*this)[i];
-        auto& state = layer->getDrawingState();
-        if (state.isRelativeOf) {
-            continue;
-        }
-        layer->traverseInReverseZOrder(stateSet, visitor);
-     }
-}
-
-void LayerVector::traverse(const Visitor& visitor) const {
-    for (auto i = static_cast<int64_t>(size()) - 1; i >= 0; i--) {
-        const auto& layer = (*this)[i];
-        layer->traverse(mStateSet, visitor);
-    }
-}
-
 } // namespace android
 
 // TODO(b/129481165): remove the #pragma below and fix conversion issues

diff --git a/services/surfaceflinger/LayerVector.h b/services/surfaceflinger/LayerVector.h
index a531f4f..38dc11d 100644
--- a/services/surfaceflinger/LayerVector.h
+++ b/services/surfaceflinger/LayerVector.h

@@ -46,11 +46,8 @@
 
     // Sorts layer by layer-stack, Z order, and finally creation order (sequence).
     int do_compare(const void* lhs, const void* rhs) const override;
-
     using Visitor = std::function<void(Layer*)>;
-    void traverseInReverseZOrder(StateSet stateSet, const Visitor& visitor) const;
-    void traverseInZOrder(StateSet stateSet, const Visitor& visitor) const;
-    void traverse(const Visitor& visitor) const;
+
 private:
     const StateSet mStateSet;
 };

diff --git a/services/surfaceflinger/Scheduler/EventThread.cpp b/services/surfaceflinger/Scheduler/EventThread.cpp
index d31fcea..218c56e 100644
--- a/services/surfaceflinger/Scheduler/EventThread.cpp
+++ b/services/surfaceflinger/Scheduler/EventThread.cpp

@@ -320,7 +320,8 @@
 
     mVsyncRegistration.update({.workDuration = mWorkDuration.get().count(),
                                .readyDuration = mReadyDuration.count(),
-                               .lastVsync = mLastVsyncCallbackTime.ns()});
+                               .lastVsync = mLastVsyncCallbackTime.ns(),
+                               .committedVsyncOpt = mLastCommittedVsyncTime.ns()});
 }
 
 sp<EventThreadConnection> EventThread::createEventConnection(
@@ -527,10 +528,11 @@
         }
 
         if (mState == State::VSync) {
-            const auto scheduleResult =
-                    mVsyncRegistration.schedule({.workDuration = mWorkDuration.get().count(),
-                                                 .readyDuration = mReadyDuration.count(),
-                                                 .lastVsync = mLastVsyncCallbackTime.ns()});
+            const auto scheduleResult = mVsyncRegistration.schedule(
+                    {.workDuration = mWorkDuration.get().count(),
+                     .readyDuration = mReadyDuration.count(),
+                     .lastVsync = mLastVsyncCallbackTime.ns(),
+                     .committedVsyncOpt = mLastCommittedVsyncTime.ns()});
             LOG_ALWAYS_FATAL_IF(!scheduleResult, "Error scheduling callback");
         } else {
             mVsyncRegistration.cancel();
@@ -725,8 +727,9 @@
     }
     if (event.header.type == DisplayEventReceiver::DISPLAY_EVENT_VSYNC &&
         FlagManager::getInstance().vrr_config()) {
-        mCallback.onExpectedPresentTimePosted(
-                TimePoint::fromNs(event.vsync.vsyncData.preferredExpectedPresentationTime()));
+        mLastCommittedVsyncTime =
+                TimePoint::fromNs(event.vsync.vsyncData.preferredExpectedPresentationTime());
+        mCallback.onExpectedPresentTimePosted(mLastCommittedVsyncTime);
     }
 }
 
@@ -744,9 +747,12 @@
 
     const auto relativeLastCallTime =
             ticks<std::milli, float>(mLastVsyncCallbackTime - TimePoint::now());
+    const auto relativeLastCommittedTime =
+            ticks<std::milli, float>(mLastCommittedVsyncTime - TimePoint::now());
     StringAppendF(&result, "mWorkDuration=%.2f mReadyDuration=%.2f last vsync time ",
                   mWorkDuration.get().count() / 1e6f, mReadyDuration.count() / 1e6f);
     StringAppendF(&result, "%.2fms relative to now\n", relativeLastCallTime);
+    StringAppendF(&result, " with vsync committed at %.2fms", relativeLastCommittedTime);
 
     StringAppendF(&result, "  pending events (count=%zu):\n", mPendingEvents.size());
     for (const auto& event : mPendingEvents) {
@@ -794,7 +800,8 @@
     if (reschedule) {
         mVsyncRegistration.schedule({.workDuration = mWorkDuration.get().count(),
                                      .readyDuration = mReadyDuration.count(),
-                                     .lastVsync = mLastVsyncCallbackTime.ns()});
+                                     .lastVsync = mLastVsyncCallbackTime.ns(),
+                                     .committedVsyncOpt = mLastCommittedVsyncTime.ns()});
     }
     return oldRegistration;
 }

diff --git a/services/surfaceflinger/Scheduler/EventThread.h b/services/surfaceflinger/Scheduler/EventThread.h
index f772126..bbe4f9d 100644
--- a/services/surfaceflinger/Scheduler/EventThread.h
+++ b/services/surfaceflinger/Scheduler/EventThread.h

@@ -220,6 +220,7 @@
     std::chrono::nanoseconds mReadyDuration GUARDED_BY(mMutex);
     std::shared_ptr<scheduler::VsyncSchedule> mVsyncSchedule GUARDED_BY(mMutex);
     TimePoint mLastVsyncCallbackTime GUARDED_BY(mMutex) = TimePoint::now();
+    TimePoint mLastCommittedVsyncTime GUARDED_BY(mMutex) = TimePoint::now();
     scheduler::VSyncCallbackRegistration mVsyncRegistration GUARDED_BY(mMutex);
     frametimeline::TokenManager* const mTokenManager;
 

diff --git a/services/surfaceflinger/Scheduler/VSyncDispatch.h b/services/surfaceflinger/Scheduler/VSyncDispatch.h
index 0c43ffb..8993c38 100644
--- a/services/surfaceflinger/Scheduler/VSyncDispatch.h
+++ b/services/surfaceflinger/Scheduler/VSyncDispatch.h

@@ -93,6 +93,8 @@
      *                 readyDuration will typically be 0.
      * @lastVsync: The targeted display time. This will be snapped to the closest
      *                 predicted vsync time after lastVsync.
+     * @committedVsyncOpt: The display time that is committed to the callback as the
+     *                 target vsync time.
      *
      * callback will be dispatched at 'workDuration + readyDuration' nanoseconds before a vsync
      * event.
@@ -101,10 +103,11 @@
         nsecs_t workDuration = 0;
         nsecs_t readyDuration = 0;
         nsecs_t lastVsync = 0;
+        std::optional<nsecs_t> committedVsyncOpt;
 
         bool operator==(const ScheduleTiming& other) const {
             return workDuration == other.workDuration && readyDuration == other.readyDuration &&
-                    lastVsync == other.lastVsync;
+                    lastVsync == other.lastVsync && committedVsyncOpt == other.committedVsyncOpt;
         }
 
         bool operator!=(const ScheduleTiming& other) const { return !(*this == other); }

diff --git a/services/surfaceflinger/Scheduler/VSyncDispatchTimerQueue.cpp b/services/surfaceflinger/Scheduler/VSyncDispatchTimerQueue.cpp
index 900bce0..1925f11 100644
--- a/services/surfaceflinger/Scheduler/VSyncDispatchTimerQueue.cpp
+++ b/services/surfaceflinger/Scheduler/VSyncDispatchTimerQueue.cpp

@@ -103,7 +103,8 @@
             tracker.nextAnticipatedVSyncTimeFrom(std::max(timing.lastVsync,
                                                           now + timing.workDuration +
                                                                   timing.readyDuration),
-                                                 timing.lastVsync);
+                                                 timing.committedVsyncOpt.value_or(
+                                                         timing.lastVsync));
     auto nextWakeupTime = nextVsyncTime - timing.workDuration - timing.readyDuration;
 
     bool const wouldSkipAVsyncTarget =
@@ -208,9 +209,12 @@
         const auto workDelta = mWorkloadUpdateInfo->workDuration - mScheduleTiming.workDuration;
         const auto readyDelta = mWorkloadUpdateInfo->readyDuration - mScheduleTiming.readyDuration;
         const auto lastVsyncDelta = mWorkloadUpdateInfo->lastVsync - mScheduleTiming.lastVsync;
+        const auto lastCommittedVsyncDelta =
+                mWorkloadUpdateInfo->committedVsyncOpt.value_or(mWorkloadUpdateInfo->lastVsync) -
+                mScheduleTiming.committedVsyncOpt.value_or(mScheduleTiming.lastVsync);
         SFTRACE_FORMAT_INSTANT("Workload updated workDelta=%" PRId64 " readyDelta=%" PRId64
-                               " lastVsyncDelta=%" PRId64,
-                               workDelta, readyDelta, lastVsyncDelta);
+                               " lastVsyncDelta=%" PRId64 " committedVsyncDelta=%" PRId64,
+                               workDelta, readyDelta, lastVsyncDelta, lastCommittedVsyncDelta);
         mScheduleTiming = *mWorkloadUpdateInfo;
         mWorkloadUpdateInfo.reset();
     }
@@ -261,10 +265,14 @@
     StringAppendF(&result, "\t\t%s: %s %s\n", mName.c_str(),
                   mRunning ? "(in callback function)" : "", armedInfo.c_str());
     StringAppendF(&result,
-                  "\t\t\tworkDuration: %.2fms readyDuration: %.2fms lastVsync: %.2fms relative "
-                  "to now\n",
+                  "\t\t\tworkDuration: %.2fms readyDuration: %.2fms "
+                  "lastVsync: %.2fms relative to now "
+                  "committedVsync: %.2fms relative to now\n",
                   mScheduleTiming.workDuration / 1e6f, mScheduleTiming.readyDuration / 1e6f,
-                  (mScheduleTiming.lastVsync - systemTime()) / 1e6f);
+                  (mScheduleTiming.lastVsync - systemTime()) / 1e6f,
+                  (mScheduleTiming.committedVsyncOpt.value_or(mScheduleTiming.lastVsync) -
+                   systemTime()) /
+                          1e6f);
 
     if (mLastDispatchTime) {
         StringAppendF(&result, "\t\t\tmLastDispatchTime: %.2fms ago\n",

diff --git a/services/surfaceflinger/Scheduler/VSyncPredictor.cpp b/services/surfaceflinger/Scheduler/VSyncPredictor.cpp
index 4a7cff5..6e36f02 100644
--- a/services/surfaceflinger/Scheduler/VSyncPredictor.cpp
+++ b/services/surfaceflinger/Scheduler/VSyncPredictor.cpp

@@ -695,9 +695,12 @@
         if (lastFrameMissed) {
             // If the last frame missed is the last vsync, we already shifted the timeline. Depends
             // on whether we skipped the frame (onFrameMissed) or not (onFrameBegin) we apply a
-            // different fixup. There is no need to to shift the vsync timeline again.
-            vsyncTime += missedVsync.fixup.ns();
-            SFTRACE_FORMAT_INSTANT("lastFrameMissed");
+            // different fixup if we are violating the minFramePeriod.
+            // There is no need to shift the vsync timeline again.
+            if (vsyncTime - missedVsync.vsync.ns() < minFramePeriodOpt->ns()) {
+                vsyncTime += missedVsync.fixup.ns();
+                SFTRACE_FORMAT_INSTANT("lastFrameMissed");
+            }
         } else if (mightBackpressure && lastVsyncOpt) {
             if (!FlagManager::getInstance().vrr_bugfix_24q4()) {
                 // lastVsyncOpt does not need to be corrected with the new rate, and

diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index bc0b3a4..e13c74f 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp

@@ -2371,7 +2371,7 @@
         {
             // TODO(b/238781169) lockless queue this and keep order.
             std::scoped_lock<std::mutex> lock(mCreatedLayersLock);
-            update.layerCreatedStates = std::move(mCreatedLayers);
+            update.legacyLayers = std::move(mCreatedLayers);
             mCreatedLayers.clear();
             update.newLayers = std::move(mNewLayers);
             mNewLayers.clear();
@@ -2390,11 +2390,8 @@
         }
         mLayerLifecycleManager.applyTransactions(update.transactions);
         mLayerLifecycleManager.onHandlesDestroyed(update.destroyedHandles);
-        for (auto& legacyLayer : update.layerCreatedStates) {
-            sp<Layer> layer = legacyLayer.layer.promote();
-            if (layer) {
-                mLegacyLayers[layer->sequence] = layer;
-            }
+        for (auto& legacyLayer : update.legacyLayers) {
+            mLegacyLayers[legacyLayer->sequence] = legacyLayer;
         }
         mLayerHierarchyBuilder.update(mLayerLifecycleManager);
     }
@@ -2848,9 +2845,7 @@
         for (auto [layer, layerFE] : layers) {
             CompositionResult compositionResult{layerFE->stealCompositionResult()};
             for (auto& [releaseFence, layerStack] : compositionResult.releaseFences) {
-                Layer* clonedFrom = layer->getClonedFrom().get();
-                auto owningLayer = clonedFrom ? clonedFrom : layer;
-                owningLayer->onLayerDisplayed(std::move(releaseFence), layerStack);
+                layer->onLayerDisplayed(std::move(releaseFence), layerStack);
             }
             if (compositionResult.lastClientCompositionFence) {
                 layer->setWasClientComposed(compositionResult.lastClientCompositionFence);
@@ -4338,55 +4333,8 @@
 
 void SurfaceFlinger::doCommitTransactions() {
     SFTRACE_CALL();
-
-    if (!mLayersPendingRemoval.isEmpty()) {
-        // Notify removed layers now that they can't be drawn from
-        for (const auto& l : mLayersPendingRemoval) {
-            // Ensure any buffers set to display on any children are released.
-            if (l->isRemovedFromCurrentState()) {
-                l->latchAndReleaseBuffer();
-            }
-
-            // If a layer has a parent, we allow it to out-live it's handle
-            // with the idea that the parent holds a reference and will eventually
-            // be cleaned up. However no one cleans up the top-level so we do so
-            // here.
-            if (l->isAtRoot()) {
-                l->setIsAtRoot(false);
-                mCurrentState.layersSortedByZ.remove(l);
-            }
-        }
-        mLayersPendingRemoval.clear();
-    }
-
     mDrawingState = mCurrentState;
     mCurrentState.colorMatrixChanged = false;
-
-    if (mVisibleRegionsDirty) {
-        for (const auto& rootLayer : mDrawingState.layersSortedByZ) {
-            rootLayer->commitChildList();
-        }
-    }
-
-    if (mLayerMirrorRoots.size() > 0) {
-        std::deque<Layer*> pendingUpdates;
-        pendingUpdates.insert(pendingUpdates.end(), mLayerMirrorRoots.begin(),
-                              mLayerMirrorRoots.end());
-        std::vector<Layer*> needsUpdating;
-        for (Layer* cloneRoot : mLayerMirrorRoots) {
-            pendingUpdates.pop_front();
-            if (cloneRoot->isRemovedFromCurrentState()) {
-                continue;
-            }
-            if (cloneRoot->updateMirrorInfo(pendingUpdates)) {
-            } else {
-                needsUpdating.push_back(cloneRoot);
-            }
-        }
-        for (Layer* cloneRoot : needsUpdating) {
-            cloneRoot->updateMirrorInfo({});
-        }
-    }
 }
 
 void SurfaceFlinger::invalidateLayerStack(const ui::LayerFilter& layerFilter, const Region& dirty) {
@@ -4429,7 +4377,7 @@
     args.layerIdToMirror = LayerHandle::getLayerId(args.mirrorLayerHandle.promote());
     {
         std::scoped_lock<std::mutex> lock(mCreatedLayersLock);
-        mCreatedLayers.emplace_back(layer, parent, args.addToRoot);
+        mCreatedLayers.emplace_back(layer);
         mNewLayers.emplace_back(std::make_unique<frontend::RequestedLayerState>(args));
         args.mirrorLayerHandle.clear();
         args.parentHandle.clear();
@@ -5117,6 +5065,10 @@
         }
     }
 
+    if (what & layer_state_t::eBufferReleaseChannelChanged) {
+        layer->setBufferReleaseChannel(s.bufferReleaseChannel);
+    }
+
     const auto& requestedLayerState = mLayerLifecycleManager.getLayerFromId(layer->getSequence());
     bool willPresentCurrentTransaction = requestedLayerState &&
             (requestedLayerState->hasReadyFrame() ||
@@ -5155,8 +5107,6 @@
         if (result != NO_ERROR) {
             return result;
         }
-
-        mirrorLayer->setClonedChild(mirrorFrom->createClone());
     }
 
     outResult.layerId = mirrorLayer->sequence;
@@ -5270,33 +5220,22 @@
     return NO_ERROR;
 }
 
-void SurfaceFlinger::markLayerPendingRemovalLocked(const sp<Layer>& layer) {
-    mLayersPendingRemoval.add(layer);
-    mLayersRemoved = true;
-    setTransactionFlags(eTransactionNeeded);
-}
-
 void SurfaceFlinger::onHandleDestroyed(BBinder* handle, sp<Layer>& layer, uint32_t layerId) {
     {
-        std::scoped_lock<std::mutex> lock(mCreatedLayersLock);
-        mDestroyedHandles.emplace_back(layerId, layer->getDebugName());
-    }
-
-    {
         // Used to remove stalled transactions which uses an internal lock.
         ftl::FakeGuard guard(kMainThreadContext);
         mTransactionHandler.onLayerDestroyed(layerId);
     }
-
     JankTracker::flushJankData(layerId);
 
-    Mutex::Autolock lock(mStateLock);
-    markLayerPendingRemovalLocked(layer);
+    std::scoped_lock<std::mutex> lock(mCreatedLayersLock);
+    mDestroyedHandles.emplace_back(layerId, layer->getDebugName());
+
+    Mutex::Autolock stateLock(mStateLock);
     layer->onHandleDestroyed();
     mBufferCountTracker.remove(handle);
     layer.clear();
-
-    setTransactionFlags(eTransactionFlushNeeded);
+    setTransactionFlags(eTransactionFlushNeeded | eTransactionNeeded);
 }
 
 void SurfaceFlinger::initializeDisplays() {
@@ -5865,9 +5804,16 @@
         }
     }
 
-    return LayerProtoFromSnapshotGenerator(mLayerSnapshotBuilder, mFrontEndDisplayInfos,
-                                           mLegacyLayers, traceFlags)
-            .generate(mLayerHierarchyBuilder.getHierarchy());
+    auto traceGenerator =
+            LayerProtoFromSnapshotGenerator(mLayerSnapshotBuilder, mFrontEndDisplayInfos,
+                                            mLegacyLayers, traceFlags)
+                    .with(mLayerHierarchyBuilder.getHierarchy());
+
+    if (traceFlags & LayerTracing::Flag::TRACE_EXTRA) {
+        traceGenerator.withOffscreenLayers(mLayerHierarchyBuilder.getOffscreenHierarchy());
+    }
+
+    return traceGenerator.generate();
 }
 
 google::protobuf::RepeatedPtrField<perfetto::protos::DisplayProto>
@@ -5901,36 +5847,6 @@
     getHwComposer().dump(result);
 }
 
-void SurfaceFlinger::dumpOffscreenLayersProto(perfetto::protos::LayersProto& layersProto,
-                                              uint32_t traceFlags) const {
-    // Add a fake invisible root layer to the proto output and parent all the offscreen layers to
-    // it.
-    perfetto::protos::LayerProto* rootProto = layersProto.add_layers();
-    const int32_t offscreenRootLayerId = INT32_MAX - 2;
-    rootProto->set_id(offscreenRootLayerId);
-    rootProto->set_name("Offscreen Root");
-    rootProto->set_parent(-1);
-
-    perfetto::protos::LayersProto offscreenLayers =
-            LayerProtoFromSnapshotGenerator(mLayerSnapshotBuilder, mFrontEndDisplayInfos,
-                                            mLegacyLayers, traceFlags)
-                    .generate(mLayerHierarchyBuilder.getOffscreenHierarchy());
-
-    for (int i = 0; i < offscreenLayers.layers_size(); i++) {
-        perfetto::protos::LayerProto* layerProto = offscreenLayers.mutable_layers()->Mutable(i);
-        if (layerProto->parent() == -1) {
-            layerProto->set_parent(offscreenRootLayerId);
-            // Add layer as child of the fake root
-            rootProto->add_children(layerProto->id());
-        }
-    }
-
-    layersProto.mutable_layers()->Reserve(layersProto.layers_size() +
-                                          offscreenLayers.layers_size());
-    std::copy(offscreenLayers.layers().begin(), offscreenLayers.layers().end(),
-              RepeatedFieldBackInserter(layersProto.mutable_layers()));
-}
-
 perfetto::protos::LayersProto SurfaceFlinger::dumpProtoFromMainThread(uint32_t traceFlags) {
     return mScheduler
             ->schedule([=, this]() FTL_FAKE_GUARD(kMainThreadContext) {
@@ -6884,7 +6800,8 @@
     IPCThreadState* ipc = IPCThreadState::self();
     const int pid = ipc->getCallingPid();
     const int uid = ipc->getCallingUid();
-    if (uid == AID_GRAPHICS || PermissionCache::checkPermission(sReadFramebuffer, pid, uid)) {
+    if (uid == AID_GRAPHICS || uid == AID_SYSTEM ||
+        PermissionCache::checkPermission(sReadFramebuffer, pid, uid)) {
         return OK;
     }
 
@@ -7223,9 +7140,7 @@
 void SurfaceFlinger::attachReleaseFenceFutureToLayer(Layer* layer, LayerFE* layerFE,
                                                      ui::LayerStack layerStack) {
     ftl::Future<FenceResult> futureFence = layerFE->createReleaseFenceFuture();
-    Layer* clonedFrom = layer->getClonedFrom().get();
-    auto owningLayer = clonedFrom ? clonedFrom : layer;
-    owningLayer->prepareReleaseCallbacks(std::move(futureFence), layerStack);
+    layer->prepareReleaseCallbacks(std::move(futureFence), layerStack);
 }
 
 // Loop over all visible layers to see whether there's any protected layer. A protected layer is
@@ -7693,18 +7608,6 @@
 
 // ---------------------------------------------------------------------------
 
-void SurfaceFlinger::State::traverse(const LayerVector::Visitor& visitor) const {
-    layersSortedByZ.traverse(visitor);
-}
-
-void SurfaceFlinger::State::traverseInZOrder(const LayerVector::Visitor& visitor) const {
-    layersSortedByZ.traverseInZOrder(stateSet, visitor);
-}
-
-void SurfaceFlinger::State::traverseInReverseZOrder(const LayerVector::Visitor& visitor) const {
-    layersSortedByZ.traverseInReverseZOrder(stateSet, visitor);
-}
-
 ftl::Optional<scheduler::FrameRateMode> SurfaceFlinger::getPreferredDisplayMode(
         PhysicalDisplayId displayId, DisplayModeId defaultModeId) const {
     if (const auto schedulerMode = mScheduler->getPreferredDisplayMode();
@@ -7873,16 +7776,12 @@
 
 void SurfaceFlinger::onLayerFirstRef(Layer* layer) {
     mNumLayers++;
-    if (!layer->isRemovedFromCurrentState()) {
-        mScheduler->registerLayer(layer, scheduler::FrameRateCompatibility::Default);
-    }
+    mScheduler->registerLayer(layer, scheduler::FrameRateCompatibility::Default);
 }
 
 void SurfaceFlinger::onLayerDestroyed(Layer* layer) {
     mNumLayers--;
-    if (!layer->isRemovedFromCurrentState()) {
-        mScheduler->deregisterLayer(layer);
-    }
+    mScheduler->deregisterLayer(layer);
     if (mTransactionTracing) {
         mTransactionTracing->onLayerRemoved(layer->getSequence());
     }
@@ -8035,37 +7934,6 @@
     return calculateMaxAcquiredBufferCount(refreshRate, presentLatency);
 }
 
-void SurfaceFlinger::handleLayerCreatedLocked(const LayerCreatedState& state, VsyncId vsyncId) {
-    sp<Layer> layer = state.layer.promote();
-    if (!layer) {
-        ALOGD("Layer was destroyed soon after creation %p", state.layer.unsafe_get());
-        return;
-    }
-    MUTEX_ALIAS(mStateLock, layer->mFlinger->mStateLock);
-
-    sp<Layer> parent;
-    bool addToRoot = state.addToRoot;
-    if (state.initialParent != nullptr) {
-        parent = state.initialParent.promote();
-        if (parent == nullptr) {
-            ALOGD("Parent was destroyed soon after creation %p", state.initialParent.unsafe_get());
-            addToRoot = false;
-        }
-    }
-
-    if (parent == nullptr && addToRoot) {
-        layer->setIsAtRoot(true);
-        mCurrentState.layersSortedByZ.add(layer);
-    } else if (parent == nullptr) {
-        layer->onRemovedFromCurrentState();
-    } else if (parent->isRemovedFromCurrentState()) {
-        parent->addChild(layer);
-        layer->onRemovedFromCurrentState();
-    } else {
-        parent->addChild(layer);
-    }
-}
-
 void SurfaceFlinger::sample() {
     if (!mLumaSampling || !mRegionSamplingThread) {
         return;
@@ -8433,9 +8301,6 @@
                                             0);
 
     auto layers = dumpDrawingStateProto(traceFlags);
-    if (traceFlags & LayerTracing::Flag::TRACE_EXTRA) {
-        dumpOffscreenLayersProto(layers);
-    }
     *snapshot.mutable_layers() = std::move(layers);
 
     if (traceFlags & LayerTracing::Flag::TRACE_HWC) {

diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 282c8cf..414088e 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h

@@ -297,8 +297,6 @@
     // the client can no longer modify this layer directly.
     void onHandleDestroyed(BBinder* handle, sp<Layer>& layer, uint32_t layerId);
 
-    std::vector<Layer*> mLayerMirrorRoots;
-
     TransactionCallbackInvoker& getTransactionCallbackInvoker() {
         return mTransactionCallbackInvoker;
     }
@@ -389,11 +387,10 @@
 
     class State {
     public:
-        explicit State(LayerVector::StateSet set) : stateSet(set), layersSortedByZ(set) {}
+        explicit State(LayerVector::StateSet set) : stateSet(set) {}
         State& operator=(const State& other) {
             // We explicitly don't copy stateSet so that, e.g., mDrawingState
             // always uses the Drawing StateSet.
-            layersSortedByZ = other.layersSortedByZ;
             displays = other.displays;
             colorMatrixChanged = other.colorMatrixChanged;
             if (colorMatrixChanged) {
@@ -405,7 +402,6 @@
         }
 
         const LayerVector::StateSet stateSet = LayerVector::StateSet::Invalid;
-        LayerVector layersSortedByZ;
 
         // TODO(b/241285876): Replace deprecated DefaultKeyedVector with ftl::SmallMap.
         DefaultKeyedVector<wp<IBinder>, DisplayDeviceState> displays;
@@ -425,10 +421,6 @@
         mat4 colorMatrix;
 
         ShadowSettings globalShadowSettings;
-
-        void traverse(const LayerVector::Visitor& visitor) const;
-        void traverseInZOrder(const LayerVector::Visitor& visitor) const;
-        void traverseInReverseZOrder(const LayerVector::Visitor& visitor) const;
     };
 
     // Keeps track of pending buffers per layer handle in the transaction queue or current/drawing
@@ -847,8 +839,6 @@
     status_t mirrorDisplay(DisplayId displayId, const LayerCreationArgs& args,
                            gui::CreateSurfaceResult& outResult);
 
-    void markLayerPendingRemovalLocked(const sp<Layer>& layer) REQUIRES(mStateLock);
-
     // add a layer to SurfaceFlinger
     status_t addClientLayer(LayerCreationArgs& args, const sp<IBinder>& handle,
                             const sp<Layer>& layer, const wp<Layer>& parentLayer,
@@ -1128,9 +1118,6 @@
 
     perfetto::protos::LayersProto dumpDrawingStateProto(uint32_t traceFlags) const
             REQUIRES(kMainThreadContext);
-    void dumpOffscreenLayersProto(perfetto::protos::LayersProto& layersProto,
-                                  uint32_t traceFlags = LayerTracing::TRACE_ALL) const
-            REQUIRES(kMainThreadContext);
     google::protobuf::RepeatedPtrField<perfetto::protos::DisplayProto> dumpDisplayProto() const;
     void doActiveLayersTracingIfNeeded(bool isCompositionComputed, bool visibleRegionDirty,
                                        TimePoint, VsyncId) REQUIRES(kMainThreadContext);
@@ -1202,7 +1189,6 @@
     State mCurrentState{LayerVector::StateSet::Current};
     std::atomic<int32_t> mTransactionFlags = 0;
     std::atomic<uint32_t> mUniqueTransactionId = 1;
-    SortedVector<sp<Layer>> mLayersPendingRemoval;
 
     // Buffers that have been discarded by clients and need to be evicted from per-layer caches so
     // the graphics memory can be immediately freed.
@@ -1392,13 +1378,6 @@
     std::unordered_map<DisplayId, sp<HdrLayerInfoReporter>> mHdrLayerInfoListeners
             GUARDED_BY(mStateLock);
 
-    mutable std::mutex mCreatedLayersLock;
-
-    // A temporay pool that store the created layers and will be added to current state in main
-    // thread.
-    std::vector<LayerCreatedState> mCreatedLayers GUARDED_BY(mCreatedLayersLock);
-    void handleLayerCreatedLocked(const LayerCreatedState&, VsyncId) REQUIRES(mStateLock);
-
     std::atomic<ui::Transform::RotationFlags> mActiveDisplayTransformHint;
 
     // Must only be accessed on the main thread.
@@ -1439,6 +1418,8 @@
     frontend::LayerHierarchyBuilder mLayerHierarchyBuilder GUARDED_BY(kMainThreadContext);
     frontend::LayerSnapshotBuilder mLayerSnapshotBuilder GUARDED_BY(kMainThreadContext);
 
+    mutable std::mutex mCreatedLayersLock;
+    std::vector<sp<Layer>> mCreatedLayers GUARDED_BY(mCreatedLayersLock);
     std::vector<std::pair<uint32_t, std::string>> mDestroyedHandles GUARDED_BY(mCreatedLayersLock);
     std::vector<std::unique_ptr<frontend::RequestedLayerState>> mNewLayers
             GUARDED_BY(mCreatedLayersLock);

diff --git a/services/surfaceflinger/Tracing/tools/LayerTraceGenerator.cpp b/services/surfaceflinger/Tracing/tools/LayerTraceGenerator.cpp
index 617ea2c..1dba175 100644
--- a/services/surfaceflinger/Tracing/tools/LayerTraceGenerator.cpp
+++ b/services/surfaceflinger/Tracing/tools/LayerTraceGenerator.cpp

@@ -162,7 +162,10 @@
 
         auto layersProto =
                 LayerProtoFromSnapshotGenerator(snapshotBuilder, displayInfos, {}, traceFlags)
-                        .generate(hierarchyBuilder.getHierarchy());
+                        .with(hierarchyBuilder.getHierarchy())
+                        .withOffscreenLayers(hierarchyBuilder.getOffscreenHierarchy())
+                        .generate();
+
         auto displayProtos = LayerProtoHelper::writeDisplayInfoToProto(displayInfos);
         if (!onlyLastEntry || (i == traceFile.entry_size() - 1)) {
             perfetto::protos::LayersSnapshotProto snapshotProto{};

diff --git a/services/surfaceflinger/TransactionCallbackInvoker.cpp b/services/surfaceflinger/TransactionCallbackInvoker.cpp
index 881bf35..c6856ae 100644
--- a/services/surfaceflinger/TransactionCallbackInvoker.cpp
+++ b/services/surfaceflinger/TransactionCallbackInvoker.cpp

@@ -149,6 +149,13 @@
                                                     handle->transformHint,
                                                     handle->currentMaxAcquiredBufferCount,
                                                     eventStats, handle->previousReleaseCallbackId);
+        if (handle->bufferReleaseChannel &&
+            handle->previousReleaseCallbackId != ReleaseCallbackId::INVALID_ID) {
+            mBufferReleases.emplace_back(handle->bufferReleaseChannel,
+                                         handle->previousReleaseCallbackId,
+                                         handle->previousReleaseFence,
+                                         handle->currentMaxAcquiredBufferCount);
+        }
     }
     return NO_ERROR;
 }
@@ -158,6 +165,12 @@
 }
 
 void TransactionCallbackInvoker::sendCallbacks(bool onCommitOnly) {
+    for (const auto& bufferRelease : mBufferReleases) {
+        bufferRelease.channel->writeReleaseFence(bufferRelease.callbackId, bufferRelease.fence,
+                                                 bufferRelease.currentMaxAcquiredBufferCount);
+    }
+    mBufferReleases.clear();
+
     // For each listener
     auto completedTransactionsItr = mCompletedTransactions.begin();
     ftl::SmallVector<ListenerStats, 10> listenerStatsToSend;

diff --git a/services/surfaceflinger/TransactionCallbackInvoker.h b/services/surfaceflinger/TransactionCallbackInvoker.h
index 7853a9f..14a7487 100644
--- a/services/surfaceflinger/TransactionCallbackInvoker.h
+++ b/services/surfaceflinger/TransactionCallbackInvoker.h

@@ -16,18 +16,14 @@
 
 #pragma once
 
-#include <condition_variable>
 #include <deque>
-#include <mutex>
 #include <optional>
-#include <queue>
-#include <thread>
 #include <unordered_map>
-#include <unordered_set>
 
 #include <android-base/thread_annotations.h>
 #include <binder/IBinder.h>
 #include <ftl/future.h>
+#include <gui/BufferReleaseChannel.h>
 #include <gui/ITransactionCompletedListener.h>
 #include <ui/Fence.h>
 #include <ui/FenceResult.h>
@@ -59,6 +55,7 @@
     uint64_t frameNumber = 0;
     uint64_t previousFrameNumber = 0;
     ReleaseCallbackId previousReleaseCallbackId = ReleaseCallbackId::INVALID_ID;
+    std::shared_ptr<gui::BufferReleaseChannel::ProducerEndpoint> bufferReleaseChannel;
 };
 
 class TransactionCallbackInvoker {
@@ -86,6 +83,14 @@
     std::unordered_map<sp<IBinder>, std::deque<TransactionStats>, IListenerHash>
         mCompletedTransactions;
 
+    struct BufferRelease {
+        std::shared_ptr<gui::BufferReleaseChannel::ProducerEndpoint> channel;
+        ReleaseCallbackId callbackId;
+        sp<Fence> fence;
+        uint32_t currentMaxAcquiredBufferCount;
+    };
+    std::vector<BufferRelease> mBufferReleases;
+
     sp<Fence> mPresentFence;
 };
 

diff --git a/services/surfaceflinger/common/FlagManager.cpp b/services/surfaceflinger/common/FlagManager.cpp
index 07c720f..8ec908f 100644
--- a/services/surfaceflinger/common/FlagManager.cpp
+++ b/services/surfaceflinger/common/FlagManager.cpp

@@ -155,6 +155,7 @@
     DUMP_READ_ONLY_FLAG(force_compile_graphite_renderengine);
     DUMP_READ_ONLY_FLAG(single_hop_screenshot);
     DUMP_READ_ONLY_FLAG(trace_frame_rate_override);
+    DUMP_READ_ONLY_FLAG(true_hdr_screenshots);
 
 #undef DUMP_READ_ONLY_FLAG
 #undef DUMP_SERVER_FLAG
@@ -259,6 +260,7 @@
 FLAG_MANAGER_READ_ONLY_FLAG(flush_buffer_slots_to_uncache, "");
 FLAG_MANAGER_READ_ONLY_FLAG(force_compile_graphite_renderengine, "");
 FLAG_MANAGER_READ_ONLY_FLAG(single_hop_screenshot, "");
+FLAG_MANAGER_READ_ONLY_FLAG(true_hdr_screenshots, "debug.sf.true_hdr_screenshots");
 
 /// Trunk stable server flags ///
 FLAG_MANAGER_SERVER_FLAG(refresh_rate_overlay_on_external_display, "")

diff --git a/services/surfaceflinger/common/include/common/FlagManager.h b/services/surfaceflinger/common/include/common/FlagManager.h
index a4b4a2b..473e564 100644
--- a/services/surfaceflinger/common/include/common/FlagManager.h
+++ b/services/surfaceflinger/common/include/common/FlagManager.h

@@ -93,6 +93,7 @@
     bool force_compile_graphite_renderengine() const;
     bool single_hop_screenshot() const;
     bool trace_frame_rate_override() const;
+    bool true_hdr_screenshots() const;
 
 protected:
     // overridden for unit tests

diff --git a/services/surfaceflinger/surfaceflinger_flags_new.aconfig b/services/surfaceflinger/surfaceflinger_flags_new.aconfig
index 886167e..0ff846e7 100644
--- a/services/surfaceflinger/surfaceflinger_flags_new.aconfig
+++ b/services/surfaceflinger/surfaceflinger_flags_new.aconfig

@@ -114,6 +114,14 @@
   }
  } # single_hop_screenshot
 
+flag {
+    name: "true_hdr_screenshots"
+    namespace: "core_graphics"
+    description: "Enables screenshotting display content in HDR, sans tone mapping"
+    bug: "329470026"
+    is_fixed_read_only: true
+} # true_hdr_screenshots
+
  flag {
   name: "override_trusted_overlay"
   namespace: "window_surfaces"

diff --git a/services/surfaceflinger/tests/unittests/SchedulerTest.cpp b/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
index 358f6b0..45ca7e2 100644
--- a/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SchedulerTest.cpp

@@ -884,7 +884,6 @@
             mScheduler->createDisplayEventConnection(Cycle::Render, {}, layer->getHandle());
 
     layer.clear();
-    mFlinger.mutableLayersPendingRemoval().clear();
     EXPECT_TRUE(mScheduler->mutableAttachedChoreographers().empty());
 }
 

diff --git a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
index a6a2758..710b5cc 100644
--- a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
+++ b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h

@@ -721,7 +721,6 @@
     }
 
     auto& mutableMinAcquiredBuffers() { return SurfaceFlinger::minAcquiredBuffers; }
-    auto& mutableLayersPendingRemoval() { return mFlinger->mLayersPendingRemoval; }
     auto& mutableLayerSnapshotBuilder() { return mFlinger->mLayerSnapshotBuilder; };
 
     auto fromHandle(const sp<IBinder>& handle) { return LayerHandle::getLayer(handle); }
@@ -789,7 +788,6 @@
         mutableDisplays().clear();
         mutableCurrentState().displays.clear();
         mutableDrawingState().displays.clear();
-        mFlinger->mLayersPendingRemoval.clear();
         mFlinger->mScheduler.reset();
         mFlinger->mCompositionEngine->setHwComposer(std::unique_ptr<HWComposer>());
         mFlinger->mRenderEngine = std::unique_ptr<renderengine::RenderEngine>();

diff --git a/services/surfaceflinger/tests/unittests/TransactionTracingTest.cpp b/services/surfaceflinger/tests/unittests/TransactionTracingTest.cpp
index 7bf1674..f8f08c7 100644
--- a/services/surfaceflinger/tests/unittests/TransactionTracingTest.cpp
+++ b/services/surfaceflinger/tests/unittests/TransactionTracingTest.cpp

@@ -20,6 +20,7 @@
 #include <gui/SurfaceComposerClient.h>
 #include <cstdint>
 #include "Client.h"
+#include "Layer.h"
 
 #include <layerproto/LayerProtoHeader.h>
 #include "FrontEnd/LayerCreationArgs.h"

diff --git a/services/surfaceflinger/tests/unittests/TunnelModeEnabledReporterTest.cpp b/services/surfaceflinger/tests/unittests/TunnelModeEnabledReporterTest.cpp
index 9f6065b..e27af0e 100644
--- a/services/surfaceflinger/tests/unittests/TunnelModeEnabledReporterTest.cpp
+++ b/services/surfaceflinger/tests/unittests/TunnelModeEnabledReporterTest.cpp

@@ -128,12 +128,10 @@
             NativeHandle::create(reinterpret_cast<native_handle_t*>(DEFAULT_SIDEBAND_STREAM),
                                  false);
     layer->setSidebandStream(stream, FrameTimelineInfo{}, 20, gui::GameMode::Unsupported);
-    mFlinger.mutableCurrentState().layersSortedByZ.add(layer);
     mTunnelModeEnabledReporter->updateTunnelModeStatus();
     mTunnelModeEnabledReporter->addListener(mTunnelModeEnabledListener);
     EXPECT_EQ(true, mTunnelModeEnabledListener->mTunnelModeEnabled);
     mTunnelModeEnabledReporter->removeListener(mTunnelModeEnabledListener);
-    mFlinger.mutableCurrentState().layersSortedByZ.remove(layer);
     layer = nullptr;
 
     mTunnelModeEnabledReporter->updateTunnelModeStatus();
@@ -154,12 +152,9 @@
     layerWithSidebandStream->setSidebandStream(stream, FrameTimelineInfo{}, 20,
                                                gui::GameMode::Unsupported);
 
-    mFlinger.mutableCurrentState().layersSortedByZ.add(simpleLayer);
-    mFlinger.mutableCurrentState().layersSortedByZ.add(layerWithSidebandStream);
     mTunnelModeEnabledReporter->updateTunnelModeStatus();
     EXPECT_EQ(true, mTunnelModeEnabledListener->mTunnelModeEnabled);
 
-    mFlinger.mutableCurrentState().layersSortedByZ.remove(layerWithSidebandStream);
     layerWithSidebandStream = nullptr;
     mTunnelModeEnabledReporter->updateTunnelModeStatus();
     EXPECT_EQ(false, mTunnelModeEnabledListener->mTunnelModeEnabled);

diff --git a/services/surfaceflinger/tests/unittests/VSyncPredictorTest.cpp b/services/surfaceflinger/tests/unittests/VSyncPredictorTest.cpp
index 7c678bd..918107d 100644
--- a/services/surfaceflinger/tests/unittests/VSyncPredictorTest.cpp
+++ b/services/surfaceflinger/tests/unittests/VSyncPredictorTest.cpp

@@ -915,7 +915,8 @@
 
     vrrTracker.onFrameBegin(TimePoint::fromNs(7000),
                             {TimePoint::fromNs(6500), TimePoint::fromNs(6500)});
-    EXPECT_EQ(10500, vrrTracker.nextAnticipatedVSyncTimeFrom(9000, 7000));
+    EXPECT_EQ(8500, vrrTracker.nextAnticipatedVSyncTimeFrom(8000, 7000));
+    EXPECT_EQ(9500, vrrTracker.nextAnticipatedVSyncTimeFrom(9000, 7000));
 }
 
 TEST_F(VSyncPredictorTest, adjustsVrrTimelineTwoClients) {

diff --git a/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockComposer.h b/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockComposer.h
index e380e19..f472d8f 100644
--- a/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockComposer.h
+++ b/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockComposer.h

@@ -180,8 +180,12 @@
     MOCK_METHOD1(onHotplugDisconnect, void(Display));
     MOCK_METHOD(Error, setRefreshRateChangedCallbackDebugEnabled, (Display, bool));
     MOCK_METHOD(Error, notifyExpectedPresent, (Display, nsecs_t, int32_t));
-    MOCK_METHOD(Error, getDisplayLuts,
-                (Display, std::vector<aidl::android::hardware::graphics::composer3::Lut>*));
+    MOCK_METHOD(
+            Error, getRequestedLuts,
+            (Display,
+             std::vector<aidl::android::hardware::graphics::composer3::DisplayLuts::LayerLut>*));
+    MOCK_METHOD(Error, setLayerLuts,
+                (Display, Layer, std::vector<aidl::android::hardware::graphics::composer3::Lut>&));
 };
 
 } // namespace Hwc2::mock

diff --git a/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockHWC2.h b/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockHWC2.h
index 1eda358..2cc1987 100644
--- a/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockHWC2.h
+++ b/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockHWC2.h

@@ -109,8 +109,9 @@
     MOCK_METHOD(hal::Error, getOverlaySupport,
                 (aidl::android::hardware::graphics::composer3::OverlayProperties *),
                 (const override));
-    MOCK_METHOD(hal::Error, getDisplayLuts,
-                (std::vector<aidl::android::hardware::graphics::composer3::Lut>*), (override));
+    MOCK_METHOD(hal::Error, getRequestedLuts,
+                (std::vector<aidl::android::hardware::graphics::composer3::DisplayLuts::LayerLut>*),
+                (override));
 };
 
 class Layer : public HWC2::Layer {
@@ -145,6 +146,8 @@
                 (const std::string &, bool, const std::vector<uint8_t> &), (override));
     MOCK_METHOD(hal::Error, setBrightness, (float), (override));
     MOCK_METHOD(hal::Error, setBlockingRegion, (const android::Region &), (override));
+    MOCK_METHOD(hal::Error, setLuts,
+                (std::vector<aidl::android::hardware::graphics::composer3::Lut>&), (override));
 };
 
 } // namespace android::HWC2::mock

diff --git a/vulkan/libvulkan/Android.bp b/vulkan/libvulkan/Android.bp
index 436e6c6..879d2d0 100644
--- a/vulkan/libvulkan/Android.bp
+++ b/vulkan/libvulkan/Android.bp

@@ -27,9 +27,18 @@
     symbol_file: "libvulkan.map.txt",
     first_version: "24",
     unversioned_until: "current",
-    export_header_libs: [
-        "ndk_vulkan_headers",
-    ],
+}
+
+aconfig_declarations {
+    name: "libvulkan_flags",
+    package: "com.android.graphics.libvulkan.flags",
+    container: "system",
+    srcs: ["libvulkan_flags.aconfig"],
+}
+
+cc_aconfig_library {
+    name: "libvulkanflags",
+    aconfig_declarations: "libvulkan_flags",
 }
 
 cc_library_shared {
@@ -113,5 +122,8 @@
         "android.hardware.graphics.common@1.0",
         "libSurfaceFlingerProp",
     ],
-    static_libs: ["libgrallocusage"],
+    static_libs: [
+        "libgrallocusage",
+        "libvulkanflags",
+    ],
 }

diff --git a/vulkan/libvulkan/api_gen.cpp b/vulkan/libvulkan/api_gen.cpp
index a3fe33e..9ff0b46 100644
--- a/vulkan/libvulkan/api_gen.cpp
+++ b/vulkan/libvulkan/api_gen.cpp

@@ -25,6 +25,9 @@
 #undef VK_NO_PROTOTYPES
 #include "api.h"
 
+/*
+ * This file is autogenerated by api_generator.py. Do not edit directly.
+ */
 namespace vulkan {
 namespace api {
 

diff --git a/vulkan/libvulkan/api_gen.h b/vulkan/libvulkan/api_gen.h
index 4998018..b468a89 100644
--- a/vulkan/libvulkan/api_gen.h
+++ b/vulkan/libvulkan/api_gen.h

@@ -25,6 +25,9 @@
 
 #include "driver_gen.h"
 
+/*
+ * This file is autogenerated by api_generator.py. Do not edit directly.
+ */
 namespace vulkan {
 namespace api {
 

diff --git a/vulkan/libvulkan/driver.cpp b/vulkan/libvulkan/driver.cpp
index ef213f0..01436db 100644
--- a/vulkan/libvulkan/driver.cpp
+++ b/vulkan/libvulkan/driver.cpp

@@ -41,10 +41,12 @@
 #include <new>
 #include <vector>
 
+#include <com_android_graphics_libvulkan_flags.h>
 #include "stubhal.h"
 
 using namespace android::hardware::configstore;
 using namespace android::hardware::configstore::V1_0;
+using namespace com::android::graphics::libvulkan;
 
 extern "C" android_namespace_t* android_get_exported_namespace(const char*);
 
@@ -688,6 +690,7 @@
             case ProcHook::KHR_incremental_present:
             case ProcHook::KHR_shared_presentable_image:
             case ProcHook::KHR_swapchain:
+            case ProcHook::KHR_swapchain_mutable_format:
             case ProcHook::EXT_hdr_metadata:
             case ProcHook::EXT_swapchain_maintenance1:
             case ProcHook::ANDROID_external_memory_android_hardware_buffer:
@@ -740,6 +743,7 @@
                 break;
             case ProcHook::ANDROID_external_memory_android_hardware_buffer:
             case ProcHook::KHR_external_fence_fd:
+            case ProcHook::KHR_swapchain_mutable_format:
             case ProcHook::EXTENSION_UNKNOWN:
                 // Extensions we don't need to do anything about at this level
                 break;
@@ -1251,6 +1255,15 @@
                 VK_EXT_SWAPCHAIN_MAINTENANCE_1_SPEC_VERSION});
     }
 
+    VkPhysicalDeviceProperties pDeviceProperties;
+    data.driver.GetPhysicalDeviceProperties(physicalDevice, &pDeviceProperties);
+    if (flags::swapchain_mutable_format_ext() &&
+        pDeviceProperties.apiVersion >= VK_API_VERSION_1_2) {
+        loader_extensions.push_back(
+            {VK_KHR_SWAPCHAIN_MUTABLE_FORMAT_EXTENSION_NAME,
+             VK_KHR_SWAPCHAIN_MUTABLE_FORMAT_SPEC_VERSION});
+    }
+
     // enumerate our extensions first
     if (!pLayerName && pProperties) {
         uint32_t count = std::min(

diff --git a/vulkan/libvulkan/driver_gen.cpp b/vulkan/libvulkan/driver_gen.cpp
index 8f09008..f741977 100644
--- a/vulkan/libvulkan/driver_gen.cpp
+++ b/vulkan/libvulkan/driver_gen.cpp

@@ -26,6 +26,9 @@
 namespace vulkan {
 namespace driver {
 
+/*
+ * This file is autogenerated by driver_generator.py. Do not edit directly.
+ */
 namespace {
 
 // clang-format off
@@ -613,6 +616,7 @@
     if (strcmp(name, "VK_KHR_external_semaphore_capabilities") == 0) return ProcHook::KHR_external_semaphore_capabilities;
     if (strcmp(name, "VK_KHR_external_fence_capabilities") == 0) return ProcHook::KHR_external_fence_capabilities;
     if (strcmp(name, "VK_KHR_external_fence_fd") == 0) return ProcHook::KHR_external_fence_fd;
+    if (strcmp(name, "VK_KHR_swapchain_mutable_format") == 0) return ProcHook::KHR_swapchain_mutable_format;
     // clang-format on
     return ProcHook::EXTENSION_UNKNOWN;
 }

diff --git a/vulkan/libvulkan/driver_gen.h b/vulkan/libvulkan/driver_gen.h
index 4527214..649c0f1 100644
--- a/vulkan/libvulkan/driver_gen.h
+++ b/vulkan/libvulkan/driver_gen.h

@@ -26,6 +26,9 @@
 #include <optional>
 #include <vector>
 
+/*
+ * This file is autogenerated by driver_generator.py. Do not edit directly.
+ */
 namespace vulkan {
 namespace driver {
 
@@ -59,6 +62,7 @@
         KHR_external_semaphore_capabilities,
         KHR_external_fence_capabilities,
         KHR_external_fence_fd,
+        KHR_swapchain_mutable_format,
 
         EXTENSION_CORE_1_0,
         EXTENSION_CORE_1_1,

diff --git a/vulkan/libvulkan/libvulkan_flags.aconfig b/vulkan/libvulkan/libvulkan_flags.aconfig
new file mode 100644
index 0000000..891bc02
--- /dev/null
+++ b/vulkan/libvulkan/libvulkan_flags.aconfig

@@ -0,0 +1,10 @@
+package: "com.android.graphics.libvulkan.flags"
+container: "system"
+
+flag {
+  name: "swapchain_mutable_format_ext"
+  namespace: "core_graphics"
+  description: "Enable the VK_KHR_swapchain_mutable_format vulkan extension"
+  bug: "341978292"
+  is_fixed_read_only: true
+}

diff --git a/vulkan/libvulkan/swapchain.cpp b/vulkan/libvulkan/swapchain.cpp
index 00e987f..09b0a14 100644
--- a/vulkan/libvulkan/swapchain.cpp
+++ b/vulkan/libvulkan/swapchain.cpp

@@ -1215,8 +1215,15 @@
                             surfaceCompressionProps
                                 ->imageCompressionFixedRateFlags =
                                 compressionProps.imageCompressionFixedRateFlags;
-                        } else {
+                        } else if (compressionRes ==
+                                       VK_ERROR_OUT_OF_HOST_MEMORY ||
+                                   compressionRes ==
+                                       VK_ERROR_OUT_OF_DEVICE_MEMORY) {
                             return compressionRes;
+                        } else {
+                            // For any of the *_NOT_SUPPORTED errors we continue
+                            // onto the next format
+                            continue;
                         }
                     }
                 } break;
@@ -1465,6 +1472,12 @@
             .flags = create_protected_swapchain ? VK_IMAGE_CREATE_PROTECTED_BIT : 0u,
         };
 
+        // If supporting mutable format swapchain add the mutable format flag
+        if (create_info->flags & VK_SWAPCHAIN_CREATE_MUTABLE_FORMAT_BIT_KHR) {
+            image_format_info.flags |= VK_IMAGE_CREATE_MUTABLE_FORMAT_BIT;
+            image_format_info.flags |= VK_IMAGE_CREATE_EXTENDED_USAGE_BIT_KHR;
+        }
+
         VkAndroidHardwareBufferUsageANDROID ahb_usage;
         ahb_usage.sType = VK_STRUCTURE_TYPE_ANDROID_HARDWARE_BUFFER_USAGE_ANDROID;
         ahb_usage.pNext = nullptr;
@@ -1883,6 +1896,11 @@
         num_images = 1;
     }
 
+    VkImageFormatListCreateInfo extra_mutable_formats = {
+        .sType = VK_STRUCTURE_TYPE_IMAGE_FORMAT_LIST_CREATE_INFO_KHR,
+    };
+    VkImageFormatListCreateInfo* extra_mutable_formats_ptr;
+
     // Look through the create_info pNext chain passed to createSwapchainKHR
     // for an image compression control struct.
     // if one is found AND the appropriate extensions are enabled, create a
@@ -1901,7 +1919,29 @@
                 image_compression.pNext = nullptr;
                 usage_info_pNext = &image_compression;
             } break;
-
+            case VK_STRUCTURE_TYPE_IMAGE_FORMAT_LIST_CREATE_INFO: {
+                const VkImageFormatListCreateInfo* format_list =
+                    reinterpret_cast<const VkImageFormatListCreateInfo*>(
+                        create_infos);
+                if (create_info->flags &
+                    VK_SWAPCHAIN_CREATE_MUTABLE_FORMAT_BIT_KHR) {
+                    if (format_list && format_list->viewFormatCount > 0 &&
+                        format_list->pViewFormats) {
+                        extra_mutable_formats.viewFormatCount =
+                            format_list->viewFormatCount;
+                        extra_mutable_formats.pViewFormats =
+                            format_list->pViewFormats;
+                        extra_mutable_formats_ptr = &extra_mutable_formats;
+                    } else {
+                        ALOGE(
+                            "vk_swapchain_create_mutable_format_bit_khr was "
+                            "set during swapchain creation but no valid "
+                            "vkimageformatlistcreateinfo was found in the "
+                            "pnext chain");
+                        return VK_ERROR_INITIALIZATION_FAILED;
+                    }
+                }
+            } break;
             default:
                 // Ignore all other info structs
                 break;
@@ -1997,6 +2037,11 @@
         .pQueueFamilyIndices = create_info->pQueueFamilyIndices,
     };
 
+    if (create_info->flags & VK_SWAPCHAIN_CREATE_MUTABLE_FORMAT_BIT_KHR) {
+        image_create.flags |= VK_IMAGE_CREATE_MUTABLE_FORMAT_BIT;
+        image_create.flags |= VK_IMAGE_CREATE_EXTENDED_USAGE_BIT_KHR;
+    }
+
     // Note: don't do deferred allocation for shared present modes. There's only one buffer
     // involved so very little benefit.
     if ((create_info->flags & VK_SWAPCHAIN_CREATE_DEFERRED_MEMORY_ALLOCATION_BIT_EXT) &&
@@ -2006,7 +2051,7 @@
         // AcquireNextImage.
         VkImageSwapchainCreateInfoKHR image_swapchain_create = {
             .sType = VK_STRUCTURE_TYPE_IMAGE_SWAPCHAIN_CREATE_INFO_KHR,
-            .pNext = nullptr,
+            .pNext = extra_mutable_formats_ptr,
             .swapchain = HandleFromSwapchain(swapchain),
         };
         image_create.pNext = &image_swapchain_create;
@@ -2058,6 +2103,11 @@
                 ANativeWindowBuffer_getHardwareBuffer(img.buffer.get());
             image_create.pNext = &image_native_buffer;
 
+            if (extra_mutable_formats_ptr) {
+                extra_mutable_formats_ptr->pNext = image_create.pNext;
+                image_create.pNext = extra_mutable_formats_ptr;
+            }
+
             ATRACE_BEGIN("CreateImage");
             result =
                 dispatch.CreateImage(device, &image_create, nullptr, &img.image);

diff --git a/vulkan/nulldrv/null_driver_gen.cpp b/vulkan/nulldrv/null_driver_gen.cpp
index d34851e..40a45af 100644
--- a/vulkan/nulldrv/null_driver_gen.cpp
+++ b/vulkan/nulldrv/null_driver_gen.cpp

@@ -24,6 +24,9 @@
 
 using namespace null_driver;
 
+/*
+ * This file is autogenerated by null_generator.py. Do not edit directly.
+ */
 namespace {
 
 struct NameProc {

diff --git a/vulkan/nulldrv/null_driver_gen.h b/vulkan/nulldrv/null_driver_gen.h
index fb3bd05..0d1e223 100644
--- a/vulkan/nulldrv/null_driver_gen.h
+++ b/vulkan/nulldrv/null_driver_gen.h

@@ -22,6 +22,9 @@
 #include <vulkan/vk_android_native_buffer.h>
 #include <vulkan/vulkan.h>
 
+/*
+ * This file is autogenerated by null_generator.py. Do not edit directly.
+ */
 namespace null_driver {
 
 PFN_vkVoidFunction GetGlobalProcAddr(const char* name);

diff --git a/vulkan/scripts/api_generator.py b/vulkan/scripts/api_generator.py
index be24172..001af20 100644
--- a/vulkan/scripts/api_generator.py
+++ b/vulkan/scripts/api_generator.py

@@ -61,6 +61,9 @@
 
 #include "driver_gen.h"
 
+/*
+ * This file is autogenerated by api_generator.py. Do not edit directly.
+ */
 namespace vulkan {
 namespace api {
 
@@ -283,6 +286,9 @@
 #undef VK_NO_PROTOTYPES
 #include "api.h"
 
+/*
+ * This file is autogenerated by api_generator.py. Do not edit directly.
+ */
 namespace vulkan {
 namespace api {
 

diff --git a/vulkan/scripts/driver_generator.py b/vulkan/scripts/driver_generator.py
index 48c0ae9..6159599 100644
--- a/vulkan/scripts/driver_generator.py
+++ b/vulkan/scripts/driver_generator.py

@@ -49,6 +49,7 @@
     'VK_KHR_external_semaphore_capabilities',
     'VK_KHR_external_fence_capabilities',
     'VK_KHR_external_fence_fd',
+    'VK_KHR_swapchain_mutable_format',
 ]
 
 # Functions needed at vulkan::driver level.
@@ -224,6 +225,9 @@
 #include <optional>
 #include <vector>
 
+/*
+ * This file is autogenerated by driver_generator.py. Do not edit directly.
+ */
 namespace vulkan {
 namespace driver {
 
@@ -503,6 +507,9 @@
 namespace vulkan {
 namespace driver {
 
+/*
+ * This file is autogenerated by driver_generator.py. Do not edit directly.
+ */
 namespace {
 
 // clang-format off\n\n""")

diff --git a/vulkan/scripts/null_generator.py b/vulkan/scripts/null_generator.py
index 3624c1d..5c5bea3 100644
--- a/vulkan/scripts/null_generator.py
+++ b/vulkan/scripts/null_generator.py

@@ -55,6 +55,9 @@
 #include <vulkan/vk_android_native_buffer.h>
 #include <vulkan/vulkan.h>
 
+/*
+ * This file is autogenerated by null_generator.py. Do not edit directly.
+ */
 namespace null_driver {
 
 PFN_vkVoidFunction GetGlobalProcAddr(const char* name);
@@ -97,6 +100,9 @@
 
 using namespace null_driver;
 
+/*
+ * This file is autogenerated by null_generator.py. Do not edit directly.
+ */
 namespace {
 
 struct NameProc {
commit	05f45ce7ebd164564f1f9e7be89aef11f0347473	[log] [tgz]
author	Ram Indani <ramindani@google.com>	Thu Sep 05 00:18:47 2024 +0000
committer	Android (Google) Code Review <android-gerrit@google.com>	Thu Sep 05 00:18:47 2024 +0000
tree	adae187c4b62e56a60495874013cb708669a3769
parent	99d4307044655da8ffe4e51f8a16d5894686fb16 [diff]
parent	2ff3cd44c9152854313a02ff36ac814e90777d91 [diff]