Merge "Fix key location API, when many to one key mapping with KL flags" into main
diff --git a/cmds/dumpstate/dumpstate.cpp b/cmds/dumpstate/dumpstate.cpp
index 6576ffd..220fef6 100644
--- a/cmds/dumpstate/dumpstate.cpp
+++ b/cmds/dumpstate/dumpstate.cpp
@@ -1559,6 +1559,13 @@
                CommandOptions::WithTimeout(90).Build(), SEC_TO_MSEC(10));
 
     printf("========================================================\n");
+    printf("== Networking Policy\n");
+    printf("========================================================\n");
+
+    RunDumpsys("DUMPSYS NETWORK POLICY", {"netpolicy"}, CommandOptions::WithTimeout(90).Build(),
+               SEC_TO_MSEC(10));
+
+    printf("========================================================\n");
     printf("== Dropbox crashes\n");
     printf("========================================================\n");
 
diff --git a/cmds/idlcli/Android.bp b/cmds/idlcli/Android.bp
index c18d3f5..50c2cd8 100644
--- a/cmds/idlcli/Android.bp
+++ b/cmds/idlcli/Android.bp
@@ -24,7 +24,7 @@
 cc_defaults {
     name: "idlcli-defaults",
     shared_libs: [
-        "android.hardware.vibrator-V2-ndk",
+        "android.hardware.vibrator-V3-ndk",
         "android.hardware.vibrator@1.0",
         "android.hardware.vibrator@1.1",
         "android.hardware.vibrator@1.2",
diff --git a/cmds/idlcli/vibrator.h b/cmds/idlcli/vibrator.h
index e100eac..b943495 100644
--- a/cmds/idlcli/vibrator.h
+++ b/cmds/idlcli/vibrator.h
@@ -49,7 +49,7 @@
 template <typename I>
 inline auto getService(std::string name) {
     const auto instance = std::string() + I::descriptor + "/" + name;
-    auto vibBinder = ndk::SpAIBinder(AServiceManager_getService(instance.c_str()));
+    auto vibBinder = ndk::SpAIBinder(AServiceManager_checkService(instance.c_str()));
     return I::fromBinder(vibBinder);
 }
 
diff --git a/cmds/installd/otapreopt_script.sh b/cmds/installd/otapreopt_script.sh
index 9384926..28bd793 100644
--- a/cmds/installd/otapreopt_script.sh
+++ b/cmds/installd/otapreopt_script.sh
@@ -50,37 +50,6 @@
   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 )) && (( $PR_DEXOPT_JOB_VERSION >= 2 )); then
-  # Delegate to Pre-reboot Dexopt, a feature of ART Service.
-  # ART Service decides what to do with this request:
-  # - If Pre-reboot Dexopt is disabled or unsupported, the command returns
-  #   non-zero. This is always the case if the current system is Android 14 or
-  #   earlier.
-  # - If Pre-reboot Dexopt is enabled in synchronous mode, the command blocks
-  #   until Pre-reboot Dexopt finishes, and returns zero no matter it succeeds or
-  #   not. This is the default behavior if the current system is Android 15.
-  # - If Pre-reboot Dexopt is enabled in asynchronous mode, the command schedules
-  #   an asynchronous job and returns 0 immediately. The job will then run by the
-  #   job scheduler when the device is idle and charging.
-  if infinite_source | pm art on-ota-staged --slot "$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
diff --git a/cmds/servicemanager/ServiceManager.cpp b/cmds/servicemanager/ServiceManager.cpp
index 0f251d2..ef2fa4d 100644
--- a/cmds/servicemanager/ServiceManager.cpp
+++ b/cmds/servicemanager/ServiceManager.cpp
@@ -29,6 +29,7 @@
 #include <thread>
 
 #if !defined(VENDORSERVICEMANAGER) && !defined(__ANDROID_RECOVERY__)
+#include "perfetto/public/protos/trace/android/android_track_event.pzc.h"
 #include "perfetto/public/te_category_macros.h"
 #include "perfetto/public/te_macros.h"
 #endif // !defined(VENDORSERVICEMANAGER) && !defined(__ANDROID_RECOVERY__)
@@ -57,6 +58,12 @@
 #define SM_PERFETTO_TRACE_FUNC(...) \
     PERFETTO_TE_SCOPED(servicemanager, PERFETTO_TE_SLICE_BEGIN(__func__) __VA_OPT__(, ) __VA_ARGS__)
 
+constexpr uint32_t kProtoServiceName =
+        perfetto_protos_AndroidTrackEvent_binder_service_name_field_number;
+constexpr uint32_t kProtoInterfaceName =
+        perfetto_protos_AndroidTrackEvent_binder_interface_name_field_number;
+constexpr uint32_t kProtoApexName = perfetto_protos_AndroidTrackEvent_apex_name_field_number;
+
 #endif // !(defined(VENDORSERVICEMANAGER) || defined(__ANDROID_RECOVERY__))
 
 bool is_multiuser_uid_isolated(uid_t uid) {
@@ -112,13 +119,15 @@
     std::string iface;
     std::string instance;
 
-    static bool fill(const std::string& name, AidlName* aname) {
+    static bool fill(const std::string& name, AidlName* aname, bool logError) {
         size_t firstSlash = name.find('/');
         size_t lastDot = name.rfind('.', firstSlash);
         if (firstSlash == std::string::npos || lastDot == std::string::npos) {
-            ALOGE("VINTF HALs require names in the format type/instance (e.g. "
-                  "some.package.foo.IFoo/default) but got: %s",
-                  name.c_str());
+            if (logError) {
+                ALOGE("VINTF HALs require names in the format type/instance (e.g. "
+                      "some.package.foo.IFoo/default) but got: %s",
+                      name.c_str());
+            }
             return false;
         }
         aname->package = name.substr(0, lastDot);
@@ -151,7 +160,7 @@
     }
 
     AidlName aname;
-    if (!AidlName::fill(name, &aname)) return false;
+    if (!AidlName::fill(name, &aname, true)) return false;
 
     bool found = forEachManifest([&](const ManifestWithDescription& mwd) {
         if (mwd.manifest->hasAidlInstance(aname.package, aname.iface, aname.instance)) {
@@ -209,7 +218,7 @@
     }
 
     AidlName aname;
-    if (!AidlName::fill(name, &aname)) return std::nullopt;
+    if (!AidlName::fill(name, &aname, true)) return std::nullopt;
 
     std::optional<std::string> updatableViaApex;
 
@@ -251,7 +260,7 @@
 
 static std::optional<std::string> getVintfAccessorName(const std::string& name) {
     AidlName aname;
-    if (!AidlName::fill(name, &aname)) return std::nullopt;
+    if (!AidlName::fill(name, &aname, false)) return std::nullopt;
 
     std::optional<std::string> accessor;
     forEachManifest([&](const ManifestWithDescription& mwd) {
@@ -270,7 +279,7 @@
 
 static std::optional<ConnectionInfo> getVintfConnectionInfo(const std::string& name) {
     AidlName aname;
-    if (!AidlName::fill(name, &aname)) return std::nullopt;
+    if (!AidlName::fill(name, &aname, true)) return std::nullopt;
 
     std::optional<std::string> ip;
     std::optional<uint64_t> port;
@@ -383,8 +392,18 @@
     }
 }
 
-Status ServiceManager::getService(const std::string& name, os::Service* outService) {
-    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+Status ServiceManager::getService(const std::string& name, sp<IBinder>* outBinder) {
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
+
+    *outBinder = tryGetBinder(name, true);
+    // returns ok regardless of result for legacy reasons
+    return Status::ok();
+}
+
+Status ServiceManager::getService2(const std::string& name, os::Service* outService) {
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
 
     *outService = tryGetService(name, true);
     // returns ok regardless of result for legacy reasons
@@ -392,7 +411,8 @@
 }
 
 Status ServiceManager::checkService(const std::string& name, os::Service* outService) {
-    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
 
     *outService = tryGetService(name, false);
     // returns ok regardless of result for legacy reasons
@@ -417,7 +437,8 @@
 }
 
 sp<IBinder> ServiceManager::tryGetBinder(const std::string& name, bool startIfNotFound) {
-    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
 
     auto ctx = mAccess->getCallingContext();
 
@@ -457,7 +478,8 @@
 }
 
 bool isValidServiceName(const std::string& name) {
-    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
 
     if (name.size() == 0) return false;
     if (name.size() > 127) return false;
@@ -474,7 +496,8 @@
 }
 
 Status ServiceManager::addService(const std::string& name, const sp<IBinder>& binder, bool allowIsolated, int32_t dumpPriority) {
-    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
 
     auto ctx = mAccess->getCallingContext();
 
@@ -597,7 +620,8 @@
 
 Status ServiceManager::registerForNotifications(
         const std::string& name, const sp<IServiceCallback>& callback) {
-    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
 
     auto ctx = mAccess->getCallingContext();
 
@@ -648,7 +672,8 @@
 }
 Status ServiceManager::unregisterForNotifications(
         const std::string& name, const sp<IServiceCallback>& callback) {
-    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
 
     auto ctx = mAccess->getCallingContext();
 
@@ -674,7 +699,8 @@
 }
 
 Status ServiceManager::isDeclared(const std::string& name, bool* outReturn) {
-    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
 
     auto ctx = mAccess->getCallingContext();
 
@@ -692,7 +718,8 @@
 }
 
 binder::Status ServiceManager::getDeclaredInstances(const std::string& interface, std::vector<std::string>* outReturn) {
-    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("interface", interface.c_str()));
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoInterfaceName, interface.c_str())));
 
     auto ctx = mAccess->getCallingContext();
 
@@ -720,7 +747,8 @@
 
 Status ServiceManager::updatableViaApex(const std::string& name,
                                         std::optional<std::string>* outReturn) {
-    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
 
     auto ctx = mAccess->getCallingContext();
 
@@ -739,7 +767,8 @@
 
 Status ServiceManager::getUpdatableNames([[maybe_unused]] const std::string& apexName,
                                          std::vector<std::string>* outReturn) {
-    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("apexName", apexName.c_str()));
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoApexName, apexName.c_str())));
 
     auto ctx = mAccess->getCallingContext();
 
@@ -765,7 +794,8 @@
 
 Status ServiceManager::getConnectionInfo(const std::string& name,
                                          std::optional<ConnectionInfo>* outReturn) {
-    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
 
     auto ctx = mAccess->getCallingContext();
 
@@ -850,7 +880,8 @@
 
 Status ServiceManager::registerClientCallback(const std::string& name, const sp<IBinder>& service,
                                               const sp<IClientCallback>& cb) {
-    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
 
     if (cb == nullptr) {
         return Status::fromExceptionCode(Status::EX_NULL_POINTER, "Callback null.");
@@ -1012,7 +1043,8 @@
 }
 
 Status ServiceManager::tryUnregisterService(const std::string& name, const sp<IBinder>& binder) {
-    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
 
     if (binder == nullptr) {
         return Status::fromExceptionCode(Status::EX_NULL_POINTER, "Null service.");
diff --git a/cmds/servicemanager/ServiceManager.h b/cmds/servicemanager/ServiceManager.h
index 18bae68..0d666c6 100644
--- a/cmds/servicemanager/ServiceManager.h
+++ b/cmds/servicemanager/ServiceManager.h
@@ -44,7 +44,8 @@
     ~ServiceManager();
 
     // getService will try to start any services it cannot find
-    binder::Status getService(const std::string& name, os::Service* outService) override;
+    binder::Status getService(const std::string& name, sp<IBinder>* outBinder) override;
+    binder::Status getService2(const std::string& name, os::Service* outService) override;
     binder::Status checkService(const std::string& name, os::Service* outService) override;
     binder::Status addService(const std::string& name, const sp<IBinder>& binder,
                               bool allowIsolated, int32_t dumpPriority) override;
diff --git a/cmds/servicemanager/test_sm.cpp b/cmds/servicemanager/test_sm.cpp
index 9d22641..95f459f 100644
--- a/cmds/servicemanager/test_sm.cpp
+++ b/cmds/servicemanager/test_sm.cpp
@@ -155,8 +155,11 @@
         IServiceManager::DUMP_FLAG_PRIORITY_DEFAULT).isOk());
 
     Service outA;
-    EXPECT_TRUE(sm->getService("foo", &outA).isOk());
+    EXPECT_TRUE(sm->getService2("foo", &outA).isOk());
     EXPECT_EQ(serviceA, outA.get<Service::Tag::binder>());
+    sp<IBinder> outBinderA;
+    EXPECT_TRUE(sm->getService("foo", &outBinderA).isOk());
+    EXPECT_EQ(serviceA, outBinderA);
 
     // serviceA should be overwritten by serviceB
     sp<IBinder> serviceB = getBinder();
@@ -164,8 +167,11 @@
         IServiceManager::DUMP_FLAG_PRIORITY_DEFAULT).isOk());
 
     Service outB;
-    EXPECT_TRUE(sm->getService("foo", &outB).isOk());
+    EXPECT_TRUE(sm->getService2("foo", &outB).isOk());
     EXPECT_EQ(serviceB, outB.get<Service::Tag::binder>());
+    sp<IBinder> outBinderB;
+    EXPECT_TRUE(sm->getService("foo", &outBinderB).isOk());
+    EXPECT_EQ(serviceB, outBinderB);
 }
 
 TEST(AddService, NoPermissions) {
@@ -188,16 +194,22 @@
         IServiceManager::DUMP_FLAG_PRIORITY_DEFAULT).isOk());
 
     Service out;
-    EXPECT_TRUE(sm->getService("foo", &out).isOk());
+    EXPECT_TRUE(sm->getService2("foo", &out).isOk());
     EXPECT_EQ(service, out.get<Service::Tag::binder>());
+    sp<IBinder> outBinder;
+    EXPECT_TRUE(sm->getService("foo", &outBinder).isOk());
+    EXPECT_EQ(service, outBinder);
 }
 
 TEST(GetService, NonExistant) {
     auto sm = getPermissiveServiceManager();
 
     Service out;
-    EXPECT_TRUE(sm->getService("foo", &out).isOk());
+    EXPECT_TRUE(sm->getService2("foo", &out).isOk());
     EXPECT_EQ(nullptr, out.get<Service::Tag::binder>());
+    sp<IBinder> outBinder;
+    EXPECT_TRUE(sm->getService("foo", &outBinder).isOk());
+    EXPECT_EQ(nullptr, outBinder);
 }
 
 TEST(GetService, NoPermissionsForGettingService) {
@@ -205,7 +217,7 @@
 
     EXPECT_CALL(*access, getCallingContext()).WillRepeatedly(Return(Access::CallingContext{}));
     EXPECT_CALL(*access, canAdd(_, _)).WillOnce(Return(true));
-    EXPECT_CALL(*access, canFind(_, _)).WillOnce(Return(false));
+    EXPECT_CALL(*access, canFind(_, _)).WillRepeatedly(Return(false));
 
     sp<ServiceManager> sm = sp<NiceMock<MockServiceManager>>::make(std::move(access));
 
@@ -214,22 +226,28 @@
 
     Service out;
     // returns nullptr but has OK status for legacy compatibility
-    EXPECT_TRUE(sm->getService("foo", &out).isOk());
+    EXPECT_TRUE(sm->getService2("foo", &out).isOk());
     EXPECT_EQ(nullptr, out.get<Service::Tag::binder>());
+    sp<IBinder> outBinder;
+    EXPECT_TRUE(sm->getService("foo", &outBinder).isOk());
+    EXPECT_EQ(nullptr, outBinder);
 }
 
 TEST(GetService, AllowedFromIsolated) {
     std::unique_ptr<MockAccess> access = std::make_unique<NiceMock<MockAccess>>();
 
     EXPECT_CALL(*access, getCallingContext())
-        // something adds it
-        .WillOnce(Return(Access::CallingContext{}))
-        // next call is from isolated app
-        .WillOnce(Return(Access::CallingContext{
-            .uid = AID_ISOLATED_START,
-        }));
+            // something adds it
+            .WillOnce(Return(Access::CallingContext{}))
+            // next calls is from isolated app
+            .WillOnce(Return(Access::CallingContext{
+                    .uid = AID_ISOLATED_START,
+            }))
+            .WillOnce(Return(Access::CallingContext{
+                    .uid = AID_ISOLATED_START,
+            }));
     EXPECT_CALL(*access, canAdd(_, _)).WillOnce(Return(true));
-    EXPECT_CALL(*access, canFind(_, _)).WillOnce(Return(true));
+    EXPECT_CALL(*access, canFind(_, _)).WillRepeatedly(Return(true));
 
     sp<ServiceManager> sm = sp<NiceMock<MockServiceManager>>::make(std::move(access));
 
@@ -238,20 +256,26 @@
         IServiceManager::DUMP_FLAG_PRIORITY_DEFAULT).isOk());
 
     Service out;
-    EXPECT_TRUE(sm->getService("foo", &out).isOk());
+    EXPECT_TRUE(sm->getService2("foo", &out).isOk());
     EXPECT_EQ(service, out.get<Service::Tag::binder>());
+    sp<IBinder> outBinder;
+    EXPECT_TRUE(sm->getService("foo", &outBinder).isOk());
+    EXPECT_EQ(service, outBinder);
 }
 
 TEST(GetService, NotAllowedFromIsolated) {
     std::unique_ptr<MockAccess> access = std::make_unique<NiceMock<MockAccess>>();
 
     EXPECT_CALL(*access, getCallingContext())
-        // something adds it
-        .WillOnce(Return(Access::CallingContext{}))
-        // next call is from isolated app
-        .WillOnce(Return(Access::CallingContext{
-            .uid = AID_ISOLATED_START,
-        }));
+            // something adds it
+            .WillOnce(Return(Access::CallingContext{}))
+            // next calls is from isolated app
+            .WillOnce(Return(Access::CallingContext{
+                    .uid = AID_ISOLATED_START,
+            }))
+            .WillOnce(Return(Access::CallingContext{
+                    .uid = AID_ISOLATED_START,
+            }));
     EXPECT_CALL(*access, canAdd(_, _)).WillOnce(Return(true));
 
     // TODO(b/136023468): when security check is first, this should be called first
@@ -264,8 +288,11 @@
 
     Service out;
     // returns nullptr but has OK status for legacy compatibility
-    EXPECT_TRUE(sm->getService("foo", &out).isOk());
+    EXPECT_TRUE(sm->getService2("foo", &out).isOk());
     EXPECT_EQ(nullptr, out.get<Service::Tag::binder>());
+    sp<IBinder> outBinder;
+    EXPECT_TRUE(sm->getService("foo", &outBinder).isOk());
+    EXPECT_EQ(nullptr, outBinder);
 }
 
 TEST(ListServices, NoPermissions) {
diff --git a/include/ftl/fake_guard.h b/include/ftl/fake_guard.h
index e601251..0bf2870 100644
--- a/include/ftl/fake_guard.h
+++ b/include/ftl/fake_guard.h
@@ -76,12 +76,8 @@
   FTL_ATTRIBUTE(release_capability(mutex))
 #endif
 
-// The parentheses around `expr` are needed to deduce an lvalue or rvalue reference.
-#define FTL_FAKE_GUARD2(mutex, expr)            \
-  [&]() -> decltype(auto) {                     \
-    const android::ftl::FakeGuard guard(mutex); \
-    return (expr);                              \
-  }()
+#define FTL_FAKE_GUARD2(mutex, expr) \
+    (android::ftl::FakeGuard(mutex), expr)
 
 #define FTL_MAKE_FAKE_GUARD(arg1, arg2, guard, ...) guard
 
diff --git a/libs/binder/BackendUnifiedServiceManager.cpp b/libs/binder/BackendUnifiedServiceManager.cpp
index 0bf3cad..54f687b 100644
--- a/libs/binder/BackendUnifiedServiceManager.cpp
+++ b/libs/binder/BackendUnifiedServiceManager.cpp
@@ -33,10 +33,19 @@
 sp<AidlServiceManager> BackendUnifiedServiceManager::getImpl() {
     return mTheRealServiceManager;
 }
+
 binder::Status BackendUnifiedServiceManager::getService(const ::std::string& name,
-                                                        os::Service* _out) {
+                                                        sp<IBinder>* _aidl_return) {
     os::Service service;
-    binder::Status status = mTheRealServiceManager->getService(name, &service);
+    binder::Status status = getService2(name, &service);
+    *_aidl_return = service.get<os::Service::Tag::binder>();
+    return status;
+}
+
+binder::Status BackendUnifiedServiceManager::getService2(const ::std::string& name,
+                                                         os::Service* _out) {
+    os::Service service;
+    binder::Status status = mTheRealServiceManager->getService2(name, &service);
     toBinderService(service, _out);
     return status;
 }
diff --git a/libs/binder/BackendUnifiedServiceManager.h b/libs/binder/BackendUnifiedServiceManager.h
index 4715be4..f5d7e66 100644
--- a/libs/binder/BackendUnifiedServiceManager.h
+++ b/libs/binder/BackendUnifiedServiceManager.h
@@ -26,7 +26,8 @@
     explicit BackendUnifiedServiceManager(const sp<os::IServiceManager>& impl);
 
     sp<os::IServiceManager> getImpl();
-    binder::Status getService(const ::std::string& name, os::Service* out) override;
+    binder::Status getService(const ::std::string& name, sp<IBinder>* _aidl_return) override;
+    binder::Status getService2(const ::std::string& name, os::Service* out) override;
     binder::Status checkService(const ::std::string& name, os::Service* out) override;
     binder::Status addService(const ::std::string& name, const sp<IBinder>& service,
                               bool allowIsolated, int32_t dumpPriority) override;
diff --git a/libs/binder/IServiceManager.cpp b/libs/binder/IServiceManager.cpp
index 12a18f2..8b80aed 100644
--- a/libs/binder/IServiceManager.cpp
+++ b/libs/binder/IServiceManager.cpp
@@ -143,7 +143,7 @@
     // mUnifiedServiceManager->getService so that it can be overridden in ServiceManagerHostShim.
     virtual Status realGetService(const std::string& name, sp<IBinder>* _aidl_return) {
         Service service;
-        Status status = mUnifiedServiceManager->getService(name, &service);
+        Status status = mUnifiedServiceManager->getService2(name, &service);
         *_aidl_return = service.get<Service::Tag::binder>();
         return status;
     }
diff --git a/libs/binder/aidl/android/os/IServiceManager.aidl b/libs/binder/aidl/android/os/IServiceManager.aidl
index ac95188..1d1f84f 100644
--- a/libs/binder/aidl/android/os/IServiceManager.aidl
+++ b/libs/binder/aidl/android/os/IServiceManager.aidl
@@ -60,9 +60,23 @@
      * exists for legacy purposes.
      *
      * Returns null if the service does not exist.
+     *
+     * @deprecated TODO(b/355394904): Use getService2 instead.
      */
     @UnsupportedAppUsage
-    Service getService(@utf8InCpp String name);
+    @nullable IBinder getService(@utf8InCpp String name);
+
+    /**
+     * Retrieve an existing service called @a name from the
+     * service manager.
+     *
+     * This is the same as checkService (returns immediately) but
+     * exists for legacy purposes.
+     *
+     * Returns an enum Service that can be of different types. The
+     * enum value is null if the service does not exist.
+     */
+    Service getService2(@utf8InCpp String name);
 
     /**
      * Retrieve an existing service called @a name from the service
diff --git a/libs/binder/servicedispatcher.cpp b/libs/binder/servicedispatcher.cpp
index 201dfbc..be99065 100644
--- a/libs/binder/servicedispatcher.cpp
+++ b/libs/binder/servicedispatcher.cpp
@@ -118,7 +118,12 @@
 class ServiceManagerProxyToNative : public android::os::BnServiceManager {
 public:
     ServiceManagerProxyToNative(const sp<android::os::IServiceManager>& impl) : mImpl(impl) {}
-    android::binder::Status getService(const std::string&, android::os::Service*) override {
+    android::binder::Status getService(const std::string&,
+                                       android::sp<android::IBinder>*) override {
+        // We can't send BpBinder for regular binder over RPC.
+        return android::binder::Status::fromStatusT(android::INVALID_OPERATION);
+    }
+    android::binder::Status getService2(const std::string&, android::os::Service*) override {
         // We can't send BpBinder for regular binder over RPC.
         return android::binder::Status::fromStatusT(android::INVALID_OPERATION);
     }
diff --git a/libs/binder/tests/Android.bp b/libs/binder/tests/Android.bp
index 4c7684c..dd50fbd 100644
--- a/libs/binder/tests/Android.bp
+++ b/libs/binder/tests/Android.bp
@@ -235,6 +235,16 @@
         "binder_test_defaults",
     ],
 
+    compile_multilib: "both",
+    multilib: {
+        lib32: {
+            suffix: "32",
+        },
+        lib64: {
+            suffix: "64",
+        },
+    },
+
     static_libs: [
         "libbinder_test_utils",
         "libbinder_tls_static",
@@ -267,7 +277,6 @@
     defaults: [
         "binderRpcTest_common_defaults",
     ],
-    compile_multilib: "first",
 
     srcs: [
         "binderRpcTest.cpp",
diff --git a/libs/binder/tests/binderRpcTest.cpp b/libs/binder/tests/binderRpcTest.cpp
index 3efd84f..cd78e82 100644
--- a/libs/binder/tests/binderRpcTest.cpp
+++ b/libs/binder/tests/binderRpcTest.cpp
@@ -19,6 +19,12 @@
 #include <aidl/IBinderRpcTest.h>
 #endif
 
+#if defined(__LP64__)
+#define TEST_FILE_SUFFIX "64"
+#else
+#define TEST_FILE_SUFFIX "32"
+#endif
+
 #include <chrono>
 #include <cstdlib>
 #include <iostream>
@@ -259,7 +265,8 @@
 
     std::string path = GetExecutableDirectory();
     auto servicePath = path + "/binder_rpc_test_service" +
-            (singleThreaded ? "_single_threaded" : "") + (noKernel ? "_no_kernel" : "");
+            (singleThreaded ? "_single_threaded" : "") + (noKernel ? "_no_kernel" : "") +
+            TEST_FILE_SUFFIX;
 
     unique_fd bootstrapClientFd, socketFd;
 
diff --git a/libs/bufferstreams/examples/app/java/com/android/graphics/bufferstreamsdemoapp/BufferDemosAppBar.kt b/libs/bufferstreams/examples/app/java/com/android/graphics/bufferstreamsdemoapp/BufferDemosAppBar.kt
index ff3ae5a..4f293b9 100644
--- a/libs/bufferstreams/examples/app/java/com/android/graphics/bufferstreamsdemoapp/BufferDemosAppBar.kt
+++ b/libs/bufferstreams/examples/app/java/com/android/graphics/bufferstreamsdemoapp/BufferDemosAppBar.kt
@@ -1,7 +1,5 @@
 package com.android.graphics.bufferstreamsdemoapp
 
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.automirrored.filled.ArrowBack
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
@@ -29,10 +27,11 @@
             navigationIcon = {
                 if (canNavigateBack) {
                     IconButton(onClick = navigateUp) {
-                        Icon(
-                                imageVector = Icons.AutoMirrored.Filled.ArrowBack,
-                                contentDescription = stringResource(R.string.back_button)
-                        )
+                        // b/355293776
+                        // Icon(
+                        //     imageVector = Icons.AutoMirrored.Filled.ArrowBack,
+                        //     contentDescription = stringResource(R.string.back_button)
+                        // )
                     }
                 }
             }
diff --git a/libs/cputimeinstate/testtimeinstate.cpp b/libs/cputimeinstate/testtimeinstate.cpp
index 81f6a58..44cdc02 100644
--- a/libs/cputimeinstate/testtimeinstate.cpp
+++ b/libs/cputimeinstate/testtimeinstate.cpp
@@ -41,7 +41,7 @@
 static constexpr uint64_t NSEC_PER_YEAR = NSEC_PER_SEC * 60 * 60 * 24 * 365;
 
 // Declare busy loop variable globally to prevent removal during optimization
-static long sum __attribute__((used)) = 0;
+static volatile long sum __attribute__((used)) = 1;
 
 using std::vector;
 
@@ -579,8 +579,8 @@
 
 // Keeps CPU busy with some number crunching
 void useCpu() {
-    sum = 0;
-    for (int i = 0; i < 100000; i++) {
+    sum = 1;
+    for (int i = 1; i < 100000; i++) {
         sum *= i;
     }
 }
diff --git a/libs/gui/BufferItemConsumer.cpp b/libs/gui/BufferItemConsumer.cpp
index e6331e7..eeb8f19 100644
--- a/libs/gui/BufferItemConsumer.cpp
+++ b/libs/gui/BufferItemConsumer.cpp
@@ -21,8 +21,11 @@
 
 #include <inttypes.h>
 
+#include <com_android_graphics_libgui_flags.h>
 #include <gui/BufferItem.h>
 #include <gui/BufferItemConsumer.h>
+#include <ui/BufferQueueDefs.h>
+#include <ui/GraphicBuffer.h>
 
 #define BI_LOGV(x, ...) ALOGV("[%s] " x, mName.c_str(), ##__VA_ARGS__)
 // #define BI_LOGD(x, ...) ALOGD("[%s] " x, mName.c_str(), ##__VA_ARGS__)
@@ -87,17 +90,38 @@
 
 status_t BufferItemConsumer::releaseBuffer(const BufferItem &item,
         const sp<Fence>& releaseFence) {
-    status_t err;
+    Mutex::Autolock _l(mMutex);
+    return releaseBufferSlotLocked(item.mSlot, item.mGraphicBuffer, releaseFence);
+}
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+status_t BufferItemConsumer::releaseBuffer(const sp<GraphicBuffer>& buffer,
+                                           const sp<Fence>& releaseFence) {
     Mutex::Autolock _l(mMutex);
 
-    err = addReleaseFenceLocked(item.mSlot, item.mGraphicBuffer, releaseFence);
+    if (buffer == nullptr) {
+        return BAD_VALUE;
+    }
+
+    int slotIndex = getSlotForBufferLocked(buffer);
+    if (slotIndex == INVALID_BUFFER_SLOT) {
+        return BAD_VALUE;
+    }
+
+    return releaseBufferSlotLocked(slotIndex, buffer, releaseFence);
+}
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
+status_t BufferItemConsumer::releaseBufferSlotLocked(int slotIndex, const sp<GraphicBuffer>& buffer,
+                                                     const sp<Fence>& releaseFence) {
+    status_t err;
+
+    err = addReleaseFenceLocked(slotIndex, buffer, releaseFence);
     if (err != OK) {
         BI_LOGE("Failed to addReleaseFenceLocked");
     }
 
-    err = releaseBufferLocked(item.mSlot, item.mGraphicBuffer, EGL_NO_DISPLAY,
-            EGL_NO_SYNC_KHR);
+    err = releaseBufferLocked(slotIndex, buffer, EGL_NO_DISPLAY, EGL_NO_SYNC_KHR);
     if (err != OK && err != IGraphicBufferConsumer::STALE_BUFFER_SLOT) {
         BI_LOGE("Failed to release buffer: %s (%d)",
                 strerror(-err), err);
diff --git a/libs/gui/BufferQueueConsumer.cpp b/libs/gui/BufferQueueConsumer.cpp
index 11f5174..69d25be 100644
--- a/libs/gui/BufferQueueConsumer.cpp
+++ b/libs/gui/BufferQueueConsumer.cpp
@@ -42,6 +42,8 @@
 
 #include <system/window.h>
 
+#include <com_android_graphics_libgui_flags.h>
+
 namespace android {
 
 // Macros for include BufferQueueCore information in log messages
@@ -370,79 +372,94 @@
         return BAD_VALUE;
     }
 
-    std::lock_guard<std::mutex> lock(mCore->mMutex);
+    sp<IProducerListener> listener;
+    {
+        std::lock_guard<std::mutex> lock(mCore->mMutex);
 
-    if (mCore->mSharedBufferMode) {
-        BQ_LOGE("attachBuffer: cannot attach a buffer in shared buffer mode");
-        return BAD_VALUE;
-    }
-
-    // Make sure we don't have too many acquired buffers
-    int numAcquiredBuffers = 0;
-    for (int s : mCore->mActiveBuffers) {
-        if (mSlots[s].mBufferState.isAcquired()) {
-            ++numAcquiredBuffers;
+        if (mCore->mSharedBufferMode) {
+            BQ_LOGE("attachBuffer: cannot attach a buffer in shared buffer mode");
+            return BAD_VALUE;
         }
+
+        // Make sure we don't have too many acquired buffers
+        int numAcquiredBuffers = 0;
+        for (int s : mCore->mActiveBuffers) {
+            if (mSlots[s].mBufferState.isAcquired()) {
+                ++numAcquiredBuffers;
+            }
+        }
+
+        if (numAcquiredBuffers >= mCore->mMaxAcquiredBufferCount + 1) {
+            BQ_LOGE("attachBuffer: max acquired buffer count reached: %d "
+                    "(max %d)", numAcquiredBuffers,
+                    mCore->mMaxAcquiredBufferCount);
+            return INVALID_OPERATION;
+        }
+
+        if (buffer->getGenerationNumber() != mCore->mGenerationNumber) {
+            BQ_LOGE("attachBuffer: generation number mismatch [buffer %u] "
+                    "[queue %u]", buffer->getGenerationNumber(),
+                    mCore->mGenerationNumber);
+            return BAD_VALUE;
+        }
+
+        // Find a free slot to put the buffer into
+        int found = BufferQueueCore::INVALID_BUFFER_SLOT;
+        if (!mCore->mFreeSlots.empty()) {
+            auto slot = mCore->mFreeSlots.begin();
+            found = *slot;
+            mCore->mFreeSlots.erase(slot);
+        } else if (!mCore->mFreeBuffers.empty()) {
+            found = mCore->mFreeBuffers.front();
+            mCore->mFreeBuffers.remove(found);
+        }
+        if (found == BufferQueueCore::INVALID_BUFFER_SLOT) {
+            BQ_LOGE("attachBuffer: could not find free buffer slot");
+            return NO_MEMORY;
+        }
+
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BQ_CONSUMER_ATTACH_CALLBACK)
+        if (mCore->mBufferAttachedCbEnabled) {
+            listener = mCore->mConnectedProducerListener;
+        }
+#endif
+
+        mCore->mActiveBuffers.insert(found);
+        *outSlot = found;
+        ATRACE_BUFFER_INDEX(*outSlot);
+        BQ_LOGV("attachBuffer: returning slot %d", *outSlot);
+
+        mSlots[*outSlot].mGraphicBuffer = buffer;
+        mSlots[*outSlot].mBufferState.attachConsumer();
+        mSlots[*outSlot].mNeedsReallocation = true;
+        mSlots[*outSlot].mFence = Fence::NO_FENCE;
+        mSlots[*outSlot].mFrameNumber = 0;
+
+        // mAcquireCalled tells BufferQueue that it doesn't need to send a valid
+        // GraphicBuffer pointer on the next acquireBuffer call, which decreases
+        // Binder traffic by not un/flattening the GraphicBuffer. However, it
+        // requires that the consumer maintain a cached copy of the slot <--> buffer
+        // mappings, which is why the consumer doesn't need the valid pointer on
+        // acquire.
+        //
+        // The StreamSplitter is one of the primary users of the attach/detach
+        // logic, and while it is running, all buffers it acquires are immediately
+        // detached, and all buffers it eventually releases are ones that were
+        // attached (as opposed to having been obtained from acquireBuffer), so it
+        // doesn't make sense to maintain the slot/buffer mappings, which would
+        // become invalid for every buffer during detach/attach. By setting this to
+        // false, the valid GraphicBuffer pointer will always be sent with acquire
+        // for attached buffers.
+        mSlots[*outSlot].mAcquireCalled = false;
+
+        VALIDATE_CONSISTENCY();
     }
 
-    if (numAcquiredBuffers >= mCore->mMaxAcquiredBufferCount + 1) {
-        BQ_LOGE("attachBuffer: max acquired buffer count reached: %d "
-                "(max %d)", numAcquiredBuffers,
-                mCore->mMaxAcquiredBufferCount);
-        return INVALID_OPERATION;
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BQ_CONSUMER_ATTACH_CALLBACK)
+    if (listener != nullptr) {
+        listener->onBufferAttached();
     }
-
-    if (buffer->getGenerationNumber() != mCore->mGenerationNumber) {
-        BQ_LOGE("attachBuffer: generation number mismatch [buffer %u] "
-                "[queue %u]", buffer->getGenerationNumber(),
-                mCore->mGenerationNumber);
-        return BAD_VALUE;
-    }
-
-    // Find a free slot to put the buffer into
-    int found = BufferQueueCore::INVALID_BUFFER_SLOT;
-    if (!mCore->mFreeSlots.empty()) {
-        auto slot = mCore->mFreeSlots.begin();
-        found = *slot;
-        mCore->mFreeSlots.erase(slot);
-    } else if (!mCore->mFreeBuffers.empty()) {
-        found = mCore->mFreeBuffers.front();
-        mCore->mFreeBuffers.remove(found);
-    }
-    if (found == BufferQueueCore::INVALID_BUFFER_SLOT) {
-        BQ_LOGE("attachBuffer: could not find free buffer slot");
-        return NO_MEMORY;
-    }
-
-    mCore->mActiveBuffers.insert(found);
-    *outSlot = found;
-    ATRACE_BUFFER_INDEX(*outSlot);
-    BQ_LOGV("attachBuffer: returning slot %d", *outSlot);
-
-    mSlots[*outSlot].mGraphicBuffer = buffer;
-    mSlots[*outSlot].mBufferState.attachConsumer();
-    mSlots[*outSlot].mNeedsReallocation = true;
-    mSlots[*outSlot].mFence = Fence::NO_FENCE;
-    mSlots[*outSlot].mFrameNumber = 0;
-
-    // mAcquireCalled tells BufferQueue that it doesn't need to send a valid
-    // GraphicBuffer pointer on the next acquireBuffer call, which decreases
-    // Binder traffic by not un/flattening the GraphicBuffer. However, it
-    // requires that the consumer maintain a cached copy of the slot <--> buffer
-    // mappings, which is why the consumer doesn't need the valid pointer on
-    // acquire.
-    //
-    // The StreamSplitter is one of the primary users of the attach/detach
-    // logic, and while it is running, all buffers it acquires are immediately
-    // detached, and all buffers it eventually releases are ones that were
-    // attached (as opposed to having been obtained from acquireBuffer), so it
-    // doesn't make sense to maintain the slot/buffer mappings, which would
-    // become invalid for every buffer during detach/attach. By setting this to
-    // false, the valid GraphicBuffer pointer will always be sent with acquire
-    // for attached buffers.
-    mSlots[*outSlot].mAcquireCalled = false;
-
-    VALIDATE_CONSISTENCY();
+#endif
 
     return NO_ERROR;
 }
diff --git a/libs/gui/BufferQueueCore.cpp b/libs/gui/BufferQueueCore.cpp
index 648db67..e0c5b1f 100644
--- a/libs/gui/BufferQueueCore.cpp
+++ b/libs/gui/BufferQueueCore.cpp
@@ -96,6 +96,7 @@
         mLinkedToDeath(),
         mConnectedProducerListener(),
         mBufferReleasedCbEnabled(false),
+        mBufferAttachedCbEnabled(false),
         mSlots(),
         mQueue(),
         mFreeSlots(),
diff --git a/libs/gui/BufferQueueProducer.cpp b/libs/gui/BufferQueueProducer.cpp
index 69345a9..a4d105d 100644
--- a/libs/gui/BufferQueueProducer.cpp
+++ b/libs/gui/BufferQueueProducer.cpp
@@ -1360,6 +1360,9 @@
 #endif
                 mCore->mConnectedProducerListener = listener;
                 mCore->mBufferReleasedCbEnabled = listener->needsReleaseNotify();
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BQ_CONSUMER_ATTACH_CALLBACK)
+                mCore->mBufferAttachedCbEnabled = listener->needsAttachNotify();
+#endif
             }
             break;
         default:
diff --git a/libs/gui/ConsumerBase.cpp b/libs/gui/ConsumerBase.cpp
index b625c3f..19b9c8b 100644
--- a/libs/gui/ConsumerBase.cpp
+++ b/libs/gui/ConsumerBase.cpp
@@ -30,9 +30,10 @@
 #include <cutils/atomic.h>
 
 #include <gui/BufferItem.h>
+#include <gui/ConsumerBase.h>
 #include <gui/ISurfaceComposer.h>
 #include <gui/SurfaceComposerClient.h>
-#include <gui/ConsumerBase.h>
+#include <ui/BufferQueueDefs.h>
 
 #include <private/gui/ComposerService.h>
 
@@ -40,6 +41,8 @@
 #include <utils/String8.h>
 #include <utils/Trace.h>
 
+#include <com_android_graphics_libgui_flags.h>
+
 // Macros for including the ConsumerBase name in log messages
 #define CB_LOGV(x, ...) ALOGV("[%s] " x, mName.c_str(), ##__VA_ARGS__)
 // #define CB_LOGD(x, ...) ALOGD("[%s] " x, mName.c_str(), ##__VA_ARGS__)
@@ -96,6 +99,35 @@
     abandon();
 }
 
+int ConsumerBase::getSlotForBufferLocked(const sp<GraphicBuffer>& buffer) {
+    if (!buffer) {
+        return BufferQueue::INVALID_BUFFER_SLOT;
+    }
+
+    uint64_t id = buffer->getId();
+    for (int i = 0; i < BufferQueueDefs::NUM_BUFFER_SLOTS; i++) {
+        auto& slot = mSlots[i];
+        if (slot.mGraphicBuffer && slot.mGraphicBuffer->getId() == id) {
+            return i;
+        }
+    }
+
+    return BufferQueue::INVALID_BUFFER_SLOT;
+}
+
+status_t ConsumerBase::detachBufferLocked(int slotIndex) {
+    status_t result = mConsumer->detachBuffer(slotIndex);
+
+    if (result != NO_ERROR) {
+        CB_LOGE("Failed to detach buffer: %d", result);
+        return result;
+    }
+
+    freeBufferLocked(slotIndex);
+
+    return result;
+}
+
 void ConsumerBase::freeBufferLocked(int slotIndex) {
     CB_LOGV("freeBufferLocked: slotIndex=%d", slotIndex);
     mSlots[slotIndex].mGraphicBuffer = nullptr;
@@ -252,16 +284,30 @@
         return NO_INIT;
     }
 
-    status_t result = mConsumer->detachBuffer(slot);
-    if (result != NO_ERROR) {
-        CB_LOGE("Failed to detach buffer: %d", result);
-        return result;
+    return detachBufferLocked(slot);
+}
+
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+status_t ConsumerBase::detachBuffer(const sp<GraphicBuffer>& buffer) {
+    CB_LOGV("detachBuffer");
+    Mutex::Autolock lock(mMutex);
+
+    if (mAbandoned) {
+        CB_LOGE("detachBuffer: ConsumerBase is abandoned!");
+        return NO_INIT;
+    }
+    if (buffer == nullptr) {
+        return BAD_VALUE;
     }
 
-    freeBufferLocked(slot);
+    int slotIndex = getSlotForBufferLocked(buffer);
+    if (slotIndex == BufferQueue::INVALID_BUFFER_SLOT) {
+        return BAD_VALUE;
+    }
 
-    return result;
+    return detachBufferLocked(slotIndex);
 }
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
 
 status_t ConsumerBase::setDefaultBufferSize(uint32_t width, uint32_t height) {
     Mutex::Autolock _l(mMutex);
diff --git a/libs/gui/IProducerListener.cpp b/libs/gui/IProducerListener.cpp
index 0683087..7700795 100644
--- a/libs/gui/IProducerListener.cpp
+++ b/libs/gui/IProducerListener.cpp
@@ -25,6 +25,9 @@
     ON_BUFFER_RELEASED = IBinder::FIRST_CALL_TRANSACTION,
     NEEDS_RELEASE_NOTIFY,
     ON_BUFFERS_DISCARDED,
+    ON_BUFFER_DETACHED,
+    ON_BUFFER_ATTACHED,
+    NEEDS_ATTACH_NOTIFY,
 };
 
 class BpProducerListener : public BpInterface<IProducerListener>
@@ -64,6 +67,38 @@
         data.writeInt32Vector(discardedSlots);
         remote()->transact(ON_BUFFERS_DISCARDED, data, &reply, IBinder::FLAG_ONEWAY);
     }
+
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BQ_CONSUMER_ATTACH_CALLBACK)
+    virtual void onBufferDetached(int slot) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IProducerListener::getInterfaceDescriptor());
+        data.writeInt32(slot);
+        remote()->transact(ON_BUFFER_DETACHED, data, &reply, IBinder::FLAG_ONEWAY);
+    }
+
+    virtual void onBufferAttached() {
+        Parcel data, reply;
+        data.writeInterfaceToken(IProducerListener::getInterfaceDescriptor());
+        remote()->transact(ON_BUFFER_ATTACHED, data, &reply, IBinder::FLAG_ONEWAY);
+    }
+
+    virtual bool needsAttachNotify() {
+        bool result;
+        Parcel data, reply;
+        data.writeInterfaceToken(IProducerListener::getInterfaceDescriptor());
+        status_t err = remote()->transact(NEEDS_ATTACH_NOTIFY, data, &reply);
+        if (err != NO_ERROR) {
+            ALOGE("IProducerListener: binder call \'needsAttachNotify\' failed");
+            return true;
+        }
+        err = reply.readBool(&result);
+        if (err != NO_ERROR) {
+            ALOGE("IProducerListener: malformed binder reply");
+            return true;
+        }
+        return result;
+    }
+#endif
 };
 
 // Out-of-line virtual method definition to trigger vtable emission in this
@@ -115,6 +150,27 @@
             onBuffersDiscarded(discardedSlots);
             return NO_ERROR;
         }
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BQ_CONSUMER_ATTACH_CALLBACK)
+        case ON_BUFFER_DETACHED: {
+            CHECK_INTERFACE(IProducerListener, data, reply);
+            int slot;
+            status_t result = data.readInt32(&slot);
+            if (result != NO_ERROR) {
+                ALOGE("ON_BUFFER_DETACHED failed to read slot: %d", result);
+                return result;
+            }
+            onBufferDetached(slot);
+            return NO_ERROR;
+        }
+        case ON_BUFFER_ATTACHED:
+            CHECK_INTERFACE(IProducerListener, data, reply);
+            onBufferAttached();
+            return NO_ERROR;
+        case NEEDS_ATTACH_NOTIFY:
+            CHECK_INTERFACE(IProducerListener, data, reply);
+            reply->writeBool(needsAttachNotify());
+            return NO_ERROR;
+#endif
     }
     return BBinder::onTransact(code, data, reply, flags);
 }
diff --git a/libs/gui/ISurfaceComposer.cpp b/libs/gui/ISurfaceComposer.cpp
index ff6b558..2699368 100644
--- a/libs/gui/ISurfaceComposer.cpp
+++ b/libs/gui/ISurfaceComposer.cpp
@@ -62,7 +62,7 @@
 
     status_t setTransactionState(
             const FrameTimelineInfo& frameTimelineInfo, Vector<ComposerState>& state,
-            const Vector<DisplayState>& displays, uint32_t flags, const sp<IBinder>& applyToken,
+            Vector<DisplayState>& displays, uint32_t flags, const sp<IBinder>& applyToken,
             InputWindowCommands commands, int64_t desiredPresentTime, bool isAutoTimestamp,
             const std::vector<client_cache_t>& uncacheBuffers, bool hasListenerCallbacks,
             const std::vector<ListenerCallbacks>& listenerCallbacks, uint64_t transactionId,
diff --git a/libs/gui/OWNERS b/libs/gui/OWNERS
index 070f6bf..b97cee3 100644
--- a/libs/gui/OWNERS
+++ b/libs/gui/OWNERS
@@ -1,6 +1,8 @@
 # Bug component: 1075131
 
+carlosmr@google.com
 chrisforbes@google.com
+jshargo@google.com
 jreck@google.com
 
 file:/services/surfaceflinger/OWNERS
@@ -9,10 +11,10 @@
 
 # BufferQueue is feature-frozen
 per-file BufferQueue* = set noparent
-per-file BufferQueue* = jreck@google.com, sumir@google.com, alecmouri@google.com
+per-file BufferQueue* = jreck@google.com, sumir@google.com, alecmouri@google.com, jshargo@google.com, carlosmr@google.com
 per-file IGraphicBuffer* = set noparent
-per-file IGraphicBuffer* = jreck@google.com, sumir@google.com, alecmouri@google.com
+per-file IGraphicBuffer* = jreck@google.com, sumir@google.com, alecmouri@google.com, jshargo@google.com, carlosmr@google.com
 per-file include/gui/BufferQueue* = set noparent
-per-file include/gui/BufferQueue* = jreck@google.com, sumir@google.com, alecmouri@google.com
+per-file include/gui/BufferQueue* = jreck@google.com, sumir@google.com, alecmouri@google.com, jshargo@google.com, carlosmr@google.com
 per-file include/gui/IGraphicBuffer* = set noparent
-per-file include/gui/IGraphicBuffer* = jreck@google.com, sumir@google.com, alecmouri@google.com
+per-file include/gui/IGraphicBuffer* = jreck@google.com, sumir@google.com, alecmouri@google.com, jshargo@google.com, carlosmr@google.com
diff --git a/libs/gui/Surface.cpp b/libs/gui/Surface.cpp
index 87fd448..a98a3c0 100644
--- a/libs/gui/Surface.cpp
+++ b/libs/gui/Surface.cpp
@@ -21,6 +21,8 @@
 #include <gui/Surface.h>
 
 #include <condition_variable>
+#include <cstddef>
+#include <cstdint>
 #include <deque>
 #include <mutex>
 #include <thread>
@@ -44,8 +46,6 @@
 #include <gui/AidlStatusUtil.h>
 #include <gui/BufferItem.h>
 
-#include <gui/IProducerListener.h>
-
 #include <gui/ISurfaceComposer.h>
 #include <gui/LayerState.h>
 #include <private/gui/ComposerService.h>
@@ -163,6 +163,12 @@
             mReqFormat, mReqUsage);
 }
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+status_t Surface::allowAllocation(bool allowAllocation) {
+    return mGraphicBufferProducer->allowAllocation(allowAllocation);
+}
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
 status_t Surface::setGenerationNumber(uint32_t generation) {
     status_t result = mGraphicBufferProducer->setGenerationNumber(generation);
     if (result == NO_ERROR) {
@@ -695,6 +701,50 @@
     return OK;
 }
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
+status_t Surface::dequeueBuffer(sp<GraphicBuffer>* buffer, sp<Fence>* outFence) {
+    if (buffer == nullptr || outFence == nullptr) {
+        return BAD_VALUE;
+    }
+
+    android_native_buffer_t* anb;
+    int fd = -1;
+    status_t res = dequeueBuffer(&anb, &fd);
+    *buffer = GraphicBuffer::from(anb);
+    *outFence = sp<Fence>::make(fd);
+    return res;
+}
+
+status_t Surface::queueBuffer(const sp<GraphicBuffer>& buffer, const sp<Fence>& fd) {
+    if (buffer == nullptr) {
+        return BAD_VALUE;
+    }
+    return queueBuffer(buffer.get(), fd ? fd->get() : -1);
+}
+
+status_t Surface::detachBuffer(const sp<GraphicBuffer>& buffer) {
+    if (nullptr == buffer) {
+        return BAD_VALUE;
+    }
+
+    Mutex::Autolock lock(mMutex);
+
+    uint64_t bufferId = buffer->getId();
+    for (int slot = 0; slot < Surface::NUM_BUFFER_SLOTS; ++slot) {
+        auto& bufferSlot = mSlots[slot];
+        if (bufferSlot.buffer != nullptr && bufferSlot.buffer->getId() == bufferId) {
+            bufferSlot.buffer = nullptr;
+            bufferSlot.dirtyRegion = Region::INVALID_REGION;
+            return mGraphicBufferProducer->detachBuffer(slot);
+        }
+    }
+
+    return BAD_VALUE;
+}
+
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
 int Surface::dequeueBuffers(std::vector<BatchBuffer>* buffers) {
     using DequeueBufferInput = IGraphicBufferProducer::DequeueBufferInput;
     using DequeueBufferOutput = IGraphicBufferProducer::DequeueBufferOutput;
@@ -1118,6 +1168,117 @@
     }
 }
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
+int Surface::queueBuffer(android_native_buffer_t* buffer, int fenceFd) {
+    ATRACE_CALL();
+    ALOGV("Surface::queueBuffer");
+
+    IGraphicBufferProducer::QueueBufferOutput output;
+    IGraphicBufferProducer::QueueBufferInput input;
+    int slot;
+    sp<Fence> fence;
+    {
+        Mutex::Autolock lock(mMutex);
+
+        slot = getSlotFromBufferLocked(buffer);
+        if (slot < 0) {
+            if (fenceFd >= 0) {
+                close(fenceFd);
+            }
+            return slot;
+        }
+        if (mSharedBufferSlot == slot && mSharedBufferHasBeenQueued) {
+            if (fenceFd >= 0) {
+                close(fenceFd);
+            }
+            return OK;
+        }
+
+        getQueueBufferInputLocked(buffer, fenceFd, mTimestamp, &input);
+        applyGrallocMetadataLocked(buffer, input);
+        fence = input.fence;
+    }
+    nsecs_t now = systemTime();
+    // Drop the lock temporarily while we touch the underlying producer. In the case of a local
+    // BufferQueue, the following should be allowable:
+    //
+    //    Surface::queueBuffer
+    // -> IConsumerListener::onFrameAvailable callback triggers automatically
+    // ->   implementation calls IGraphicBufferConsumer::acquire/release immediately
+    // -> SurfaceListener::onBufferRelesed callback triggers automatically
+    // ->   implementation calls Surface::dequeueBuffer
+    status_t err = mGraphicBufferProducer->queueBuffer(slot, input, &output);
+    {
+        Mutex::Autolock lock(mMutex);
+
+        mLastQueueDuration = systemTime() - now;
+        if (err != OK) {
+            ALOGE("queueBuffer: error queuing buffer, %d", err);
+        }
+
+        onBufferQueuedLocked(slot, fence, output);
+    }
+
+    return err;
+}
+
+int Surface::queueBuffers(const std::vector<BatchQueuedBuffer>& buffers) {
+    ATRACE_CALL();
+    ALOGV("Surface::queueBuffers");
+
+    size_t numBuffers = buffers.size();
+    std::vector<IGraphicBufferProducer::QueueBufferInput> queueBufferInputs(numBuffers);
+    std::vector<IGraphicBufferProducer::QueueBufferOutput> queueBufferOutputs;
+    std::vector<int> bufferSlots(numBuffers, -1);
+    std::vector<sp<Fence>> bufferFences(numBuffers);
+
+    int err;
+    {
+        Mutex::Autolock lock(mMutex);
+
+        if (mSharedBufferMode) {
+            ALOGE("%s: batched operation is not supported in shared buffer mode", __FUNCTION__);
+            return INVALID_OPERATION;
+        }
+
+        for (size_t batchIdx = 0; batchIdx < numBuffers; batchIdx++) {
+            int i = getSlotFromBufferLocked(buffers[batchIdx].buffer);
+            if (i < 0) {
+                if (buffers[batchIdx].fenceFd >= 0) {
+                    close(buffers[batchIdx].fenceFd);
+                }
+                return i;
+            }
+            bufferSlots[batchIdx] = i;
+
+            IGraphicBufferProducer::QueueBufferInput input;
+            getQueueBufferInputLocked(buffers[batchIdx].buffer, buffers[batchIdx].fenceFd,
+                                      buffers[batchIdx].timestamp, &input);
+            bufferFences[batchIdx] = input.fence;
+            queueBufferInputs[batchIdx] = input;
+        }
+    }
+    nsecs_t now = systemTime();
+    err = mGraphicBufferProducer->queueBuffers(queueBufferInputs, &queueBufferOutputs);
+    {
+        Mutex::Autolock lock(mMutex);
+        mLastQueueDuration = systemTime() - now;
+        if (err != OK) {
+            ALOGE("%s: error queuing buffer, %d", __FUNCTION__, err);
+        }
+
+        for (size_t batchIdx = 0; batchIdx < numBuffers; batchIdx++) {
+            onBufferQueuedLocked(bufferSlots[batchIdx], bufferFences[batchIdx],
+                                 queueBufferOutputs[batchIdx]);
+        }
+    }
+
+    return err;
+}
+
+#else
+
 int Surface::queueBuffer(android_native_buffer_t* buffer, int fenceFd) {
     ATRACE_CALL();
     ALOGV("Surface::queueBuffer");
@@ -1205,6 +1366,8 @@
     return err;
 }
 
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
 void Surface::querySupportedTimestampsLocked() const {
     // mMutex must be locked when calling this method.
 
@@ -1860,30 +2023,31 @@
 }
 
 int Surface::connect(int api) {
-    static sp<IProducerListener> listener = new StubProducerListener();
+    static sp<SurfaceListener> listener = new StubSurfaceListener();
     return connect(api, listener);
 }
 
-int Surface::connect(int api, const sp<IProducerListener>& listener) {
+int Surface::connect(int api, const sp<SurfaceListener>& listener) {
     return connect(api, listener, false);
 }
 
 int Surface::connect(
         int api, bool reportBufferRemoval, const sp<SurfaceListener>& sListener) {
-    if (sListener != nullptr) {
-        mListenerProxy = new ProducerListenerProxy(this, sListener);
-    }
-    return connect(api, mListenerProxy, reportBufferRemoval);
+    return connect(api, sListener, reportBufferRemoval);
 }
 
-int Surface::connect(
-        int api, const sp<IProducerListener>& listener, bool reportBufferRemoval) {
+int Surface::connect(int api, const sp<SurfaceListener>& listener, bool reportBufferRemoval) {
     ATRACE_CALL();
     ALOGV("Surface::connect");
     Mutex::Autolock lock(mMutex);
     IGraphicBufferProducer::QueueBufferOutput output;
     mReportRemovedBuffers = reportBufferRemoval;
-    int err = mGraphicBufferProducer->connect(listener, api, mProducerControlledByApp, &output);
+    if (listener != nullptr) {
+        mListenerProxy = new ProducerListenerProxy(this, listener);
+    }
+
+    int err =
+            mGraphicBufferProducer->connect(mListenerProxy, api, mProducerControlledByApp, &output);
     if (err == NO_ERROR) {
         mDefaultWidth = output.width;
         mDefaultHeight = output.height;
@@ -1911,7 +2075,6 @@
     return err;
 }
 
-
 int Surface::disconnect(int api, IGraphicBufferProducer::DisconnectMode mode) {
     ATRACE_CALL();
     ALOGV("Surface::disconnect");
diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index 2821b51..e86e13d 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -1174,7 +1174,8 @@
     uncacheBuffer.token = BufferCache::getInstance().getToken();
     uncacheBuffer.id = cacheId;
     Vector<ComposerState> composerStates;
-    status_t status = sf->setTransactionState(FrameTimelineInfo{}, composerStates, {},
+    Vector<DisplayState> displayStates;
+    status_t status = sf->setTransactionState(FrameTimelineInfo{}, composerStates, displayStates,
                                               ISurfaceComposer::eOneWay,
                                               Transaction::getDefaultApplyToken(), {}, systemTime(),
                                               true, {uncacheBuffer}, false, {}, generateId(), {});
diff --git a/libs/gui/include/gui/BufferItemConsumer.h b/libs/gui/include/gui/BufferItemConsumer.h
index a905610..e383a40 100644
--- a/libs/gui/include/gui/BufferItemConsumer.h
+++ b/libs/gui/include/gui/BufferItemConsumer.h
@@ -17,13 +17,15 @@
 #ifndef ANDROID_GUI_BUFFERITEMCONSUMER_H
 #define ANDROID_GUI_BUFFERITEMCONSUMER_H
 
-#include <gui/ConsumerBase.h>
+#include <com_android_graphics_libgui_flags.h>
 #include <gui/BufferQueue.h>
+#include <gui/ConsumerBase.h>
 
 #define ANDROID_GRAPHICS_BUFFERITEMCONSUMER_JNI_ID "mBufferItemConsumer"
 
 namespace android {
 
+class GraphicBuffer;
 class String8;
 
 /**
@@ -85,7 +87,15 @@
     status_t releaseBuffer(const BufferItem &item,
             const sp<Fence>& releaseFence = Fence::NO_FENCE);
 
-   private:
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+    status_t releaseBuffer(const sp<GraphicBuffer>& buffer,
+                           const sp<Fence>& releaseFence = Fence::NO_FENCE);
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
+private:
+    status_t releaseBufferSlotLocked(int slotIndex, const sp<GraphicBuffer>& buffer,
+                                     const sp<Fence>& releaseFence);
+
     void freeBufferLocked(int slotIndex) override;
 
     // mBufferFreedListener is the listener object that will be called when
diff --git a/libs/gui/include/gui/BufferQueueCore.h b/libs/gui/include/gui/BufferQueueCore.h
index bb52c8e..d5dd7c8 100644
--- a/libs/gui/include/gui/BufferQueueCore.h
+++ b/libs/gui/include/gui/BufferQueueCore.h
@@ -192,6 +192,10 @@
     // callback is registered by the listener. When set to false,
     // mConnectedProducerListener will not trigger onBufferReleased() callback.
     bool mBufferReleasedCbEnabled;
+    // mBufferAttachedCbEnabled is used to indicate whether onBufferAttached()
+    // callback is registered by the listener. When set to false,
+    // mConnectedProducerListener will not trigger onBufferAttached() callback.
+    bool mBufferAttachedCbEnabled;
 
     // mSlots is an array of buffer slots that must be mirrored on the producer
     // side. This allows buffer ownership to be transferred between the producer
diff --git a/libs/gui/include/gui/ConsumerBase.h b/libs/gui/include/gui/ConsumerBase.h
index 8ff0cd0..a031e66 100644
--- a/libs/gui/include/gui/ConsumerBase.h
+++ b/libs/gui/include/gui/ConsumerBase.h
@@ -17,18 +17,16 @@
 #ifndef ANDROID_GUI_CONSUMERBASE_H
 #define ANDROID_GUI_CONSUMERBASE_H
 
+#include <com_android_graphics_libgui_flags.h>
 #include <gui/BufferQueueDefs.h>
 #include <gui/IConsumerListener.h>
 #include <gui/IGraphicBufferConsumer.h>
 #include <gui/OccupancyTracker.h>
-
 #include <ui/PixelFormat.h>
-
 #include <utils/String8.h>
 #include <utils/Vector.h>
 #include <utils/threads.h>
 
-
 namespace android {
 // ----------------------------------------------------------------------------
 
@@ -81,7 +79,13 @@
     void setFrameAvailableListener(const wp<FrameAvailableListener>& listener);
 
     // See IGraphicBufferConsumer::detachBuffer
-    status_t detachBuffer(int slot);
+    status_t detachBuffer(int slot) __attribute((
+            deprecated("Please use the GraphicBuffer variant--slots are deprecated.")));
+
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+    // See IGraphicBufferConsumer::detachBuffer
+    status_t detachBuffer(const sp<GraphicBuffer>& buffer);
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
 
     // See IGraphicBufferConsumer::setDefaultBufferSize
     status_t setDefaultBufferSize(uint32_t width, uint32_t height);
@@ -150,6 +154,10 @@
     virtual void onBuffersReleased() override;
     virtual void onSidebandStreamChanged() override;
 
+    virtual int getSlotForBufferLocked(const sp<GraphicBuffer>& buffer);
+
+    virtual status_t detachBufferLocked(int slotIndex);
+
     // freeBufferLocked frees up the given buffer slot.  If the slot has been
     // initialized this will release the reference to the GraphicBuffer in that
     // slot.  Otherwise it has no effect.
diff --git a/libs/gui/include/gui/IProducerListener.h b/libs/gui/include/gui/IProducerListener.h
index b15f501..3dcc6b6 100644
--- a/libs/gui/include/gui/IProducerListener.h
+++ b/libs/gui/include/gui/IProducerListener.h
@@ -25,6 +25,8 @@
 #include <hidl/HybridInterface.h>
 #include <utils/RefBase.h>
 
+#include <com_android_graphics_libgui_flags.h>
+
 namespace android {
 
 // ProducerListener is the interface through which the BufferQueue notifies the
@@ -55,6 +57,16 @@
     // This is called without any lock held and can be called concurrently by
     // multiple threads.
     virtual void onBufferDetached(int /*slot*/) {} // Asynchronous
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BQ_CONSUMER_ATTACH_CALLBACK)
+    // onBufferAttached is called from IGraphicBufferConsumer::attachBuffer to
+    // notify the producer that a buffer is attached.
+    //
+    // This is called without any lock held and can be called concurrently by
+    // multiple threads. This callback is enabled only when needsAttachNotify()
+    // returns {@code true}.
+    virtual void onBufferAttached() {} // Asynchronous
+    virtual bool needsAttachNotify() { return false; }
+#endif
 };
 
 #ifndef NO_BINDER
diff --git a/libs/gui/include/gui/ISurfaceComposer.h b/libs/gui/include/gui/ISurfaceComposer.h
index eb4a802..1ecc216 100644
--- a/libs/gui/include/gui/ISurfaceComposer.h
+++ b/libs/gui/include/gui/ISurfaceComposer.h
@@ -112,7 +112,7 @@
     /* open/close transactions. requires ACCESS_SURFACE_FLINGER permission */
     virtual status_t setTransactionState(
             const FrameTimelineInfo& frameTimelineInfo, Vector<ComposerState>& state,
-            const Vector<DisplayState>& displays, uint32_t flags, const sp<IBinder>& applyToken,
+            Vector<DisplayState>& displays, uint32_t flags, const sp<IBinder>& applyToken,
             InputWindowCommands inputWindowCommands, int64_t desiredPresentTime,
             bool isAutoTimestamp, const std::vector<client_cache_t>& uncacheBuffer,
             bool hasListenerCallbacks, const std::vector<ListenerCallbacks>& listenerCallbacks,
diff --git a/libs/gui/include/gui/Surface.h b/libs/gui/include/gui/Surface.h
index bdcaaf2..3e2aa47 100644
--- a/libs/gui/include/gui/Surface.h
+++ b/libs/gui/include/gui/Surface.h
@@ -18,6 +18,7 @@
 #define ANDROID_GUI_SURFACE_H
 
 #include <android/gui/FrameTimelineInfo.h>
+#include <com_android_graphics_libgui_flags.h>
 #include <gui/BufferQueueDefs.h>
 #include <gui/HdrMetadata.h>
 #include <gui/IGraphicBufferProducer.h>
@@ -33,8 +34,12 @@
 #include <shared_mutex>
 #include <unordered_set>
 
+#include <com_android_graphics_libgui_flags.h>
+
 namespace android {
 
+class GraphicBuffer;
+
 namespace gui {
 class ISurfaceComposer;
 } // namespace gui
@@ -56,6 +61,20 @@
     virtual bool needsReleaseNotify() = 0;
 
     virtual void onBuffersDiscarded(const std::vector<sp<GraphicBuffer>>& buffers) = 0;
+    virtual void onBufferDetached(int slot) = 0;
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BQ_CONSUMER_ATTACH_CALLBACK)
+    virtual void onBufferAttached() {}
+    virtual bool needsAttachNotify() { return false; }
+#endif
+};
+
+class StubSurfaceListener : public SurfaceListener {
+public:
+    virtual ~StubSurfaceListener() {}
+    virtual void onBufferReleased() override {}
+    virtual bool needsReleaseNotify() { return false; }
+    virtual void onBuffersDiscarded(const std::vector<sp<GraphicBuffer>>& /*buffers*/) override {}
+    virtual void onBufferDetached(int /*slot*/) override {}
 };
 
 /*
@@ -154,6 +173,11 @@
      */
     virtual void allocateBuffers();
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+    // See IGraphicBufferProducer::allowAllocation
+    status_t allowAllocation(bool allowAllocation);
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
     /* Sets the generation number on the IGraphicBufferProducer and updates the
      * generation number on any buffers attached to the Surface after this call.
      * See IGBP::setGenerationNumber for more information. */
@@ -357,15 +381,13 @@
     virtual int unlockAndPost();
     virtual int query(int what, int* value) const;
 
-    virtual int connect(int api, const sp<IProducerListener>& listener);
+    virtual int connect(int api, const sp<SurfaceListener>& listener);
 
     // When reportBufferRemoval is true, clients must call getAndFlushRemovedBuffers to fetch
     // GraphicBuffers removed from this surface after a dequeueBuffer, detachNextBuffer or
     // attachBuffer call. This allows clients with their own buffer caches to free up buffers no
     // longer in use by this surface.
-    virtual int connect(
-            int api, const sp<IProducerListener>& listener,
-            bool reportBufferRemoval);
+    virtual int connect(int api, const sp<SurfaceListener>& listener, bool reportBufferRemoval);
     virtual int detachNextBuffer(sp<GraphicBuffer>* outBuffer,
             sp<Fence>* outFence);
     virtual int attachBuffer(ANativeWindowBuffer*);
@@ -387,6 +409,20 @@
     static status_t attachAndQueueBufferWithDataspace(Surface* surface, sp<GraphicBuffer> buffer,
                                                       ui::Dataspace dataspace);
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+    // Dequeues a buffer and its outFence, which must be signalled before the buffer can be used.
+    status_t dequeueBuffer(sp<GraphicBuffer>* buffer, sp<Fence>* outFence);
+
+    // 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);
+
+    // 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.
+    status_t detachBuffer(const sp<GraphicBuffer>& buffer);
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
     // Batch version of dequeueBuffer, cancelBuffer and queueBuffer
     // Note that these batched operations are not supported when shared buffer mode is being used.
     struct BatchBuffer {
@@ -422,7 +458,18 @@
             return mSurfaceListener->needsReleaseNotify();
         }
 
+        virtual void onBufferDetached(int slot) { mSurfaceListener->onBufferDetached(slot); }
+
         virtual void onBuffersDiscarded(const std::vector<int32_t>& slots);
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BQ_CONSUMER_ATTACH_CALLBACK)
+        virtual void onBufferAttached() {
+            mSurfaceListener->onBufferAttached();
+        }
+
+        virtual bool needsAttachNotify() {
+            return mSurfaceListener->needsAttachNotify();
+        }
+#endif
     private:
         wp<Surface> mParent;
         sp<SurfaceListener> mSurfaceListener;
diff --git a/libs/gui/libgui_flags.aconfig b/libs/gui/libgui_flags.aconfig
index 74d806e..9d44cc9 100644
--- a/libs/gui/libgui_flags.aconfig
+++ b/libs/gui/libgui_flags.aconfig
@@ -37,6 +37,14 @@
 } # trace_frame_rate_override
 
 flag {
+  name: "wb_consumer_base_owns_bq"
+  namespace: "core_graphics"
+  description: "ConsumerBase-based classes now own their own bufferqueue"
+  bug: "340933754"
+  is_fixed_read_only: true
+} # wb_consumer_base_owns_bq
+
+flag {
   name: "wb_platform_api_improvements"
   namespace: "core_graphics"
   description: "Simple improvements to Surface and ConsumerBase classes"
@@ -45,9 +53,41 @@
 } # wb_platform_api_improvements
 
 flag {
+    name: "wb_stream_splitter"
+    namespace: "core_graphics"
+    description: "Removes IGBP/IGBCs from Camera3StreamSplitter as part of BufferQueue refactors"
+    bug: "340933206"
+    is_fixed_read_only: true
+} # wb_stream_splitter
+
+flag {
   name: "edge_extension_shader"
   namespace: "windowing_frontend"
   description: "Enable edge extension via shader"
   bug: "322036393"
   is_fixed_read_only: true
 } # edge_extension_shader
+
+flag {
+  name: "buffer_release_channel"
+  namespace: "window_surfaces"
+  description: "Enable BufferReleaseChannel to optimize buffer releases"
+  bug: "294133380"
+  is_fixed_read_only: true
+} # buffer_release_channel
+
+flag {
+  name: "wb_surface_connect_methods"
+  namespace: "core_graphics"
+  description: "Remove redundant connect methods in Surface."
+  bug: "354273690"
+  is_fixed_read_only: true
+} # wb_surface_connect_methods
+
+flag {
+  name: "bq_consumer_attach_callback"
+  namespace: "core_graphics"
+  description: "Controls IProducerListener to have consumer side attach callback"
+  bug: "353202582"
+  is_fixed_read_only: true
+} # bq_consumer_attach_callback
diff --git a/libs/gui/tests/Android.bp b/libs/gui/tests/Android.bp
index ea8acbb..b342a7d 100644
--- a/libs/gui/tests/Android.bp
+++ b/libs/gui/tests/Android.bp
@@ -25,6 +25,7 @@
         "-Wthread-safety",
         "-DCOM_ANDROID_GRAPHICS_LIBGUI_FLAGS_BQ_SETFRAMERATE=true",
         "-DCOM_ANDROID_GRAPHICS_LIBGUI_FLAGS_BQ_EXTENDEDALLOCATE=true",
+        "-DCOM_ANDROID_GRAPHICS_LIBGUI_FLAGS_WB_PLATFORM_API_IMPROVEMENTS=true",
     ],
 
     srcs: [
diff --git a/libs/gui/tests/BLASTBufferQueue_test.cpp b/libs/gui/tests/BLASTBufferQueue_test.cpp
index 946ff05..6852589 100644
--- a/libs/gui/tests/BLASTBufferQueue_test.cpp
+++ b/libs/gui/tests/BLASTBufferQueue_test.cpp
@@ -1269,6 +1269,20 @@
     }
 };
 
+class TestSurfaceListener : public SurfaceListener {
+public:
+    sp<IGraphicBufferProducer> mIgbp;
+    TestSurfaceListener(const sp<IGraphicBufferProducer>& igbp) : mIgbp(igbp) {}
+    void onBufferReleased() override {
+        sp<GraphicBuffer> buffer;
+        sp<Fence> fence;
+        mIgbp->detachNextBuffer(&buffer, &fence);
+    }
+    bool needsReleaseNotify() override { return true; }
+    void onBuffersDiscarded(const std::vector<sp<GraphicBuffer>>& /*buffers*/) override {}
+    void onBufferDetached(int /*slot*/) {}
+};
+
 TEST_F(BLASTBufferQueueTest, CustomProducerListener) {
     BLASTBufferQueueHelper adapter(mSurfaceControl, mDisplayWidth, mDisplayHeight);
     sp<IGraphicBufferProducer> igbProducer = adapter.getIGraphicBufferProducer();
@@ -1327,7 +1341,7 @@
     ASSERT_EQ(ui::Transform::ROT_0, static_cast<ui::Transform::RotationFlags>(transformHint));
 
     ASSERT_EQ(NO_ERROR,
-              surface->connect(NATIVE_WINDOW_API_CPU, new TestProducerListener(igbProducer)));
+              surface->connect(NATIVE_WINDOW_API_CPU, new TestSurfaceListener(igbProducer)));
 
     // After connecting to the surface, we should get the correct hint.
     surface->query(NATIVE_WINDOW_TRANSFORM_HINT, &transformHint);
diff --git a/libs/gui/tests/BufferItemConsumer_test.cpp b/libs/gui/tests/BufferItemConsumer_test.cpp
index 6880678..7d33f28 100644
--- a/libs/gui/tests/BufferItemConsumer_test.cpp
+++ b/libs/gui/tests/BufferItemConsumer_test.cpp
@@ -17,10 +17,12 @@
 #define LOG_TAG "BufferItemConsumer_test"
 //#define LOG_NDEBUG 0
 
+#include <gmock/gmock.h>
 #include <gtest/gtest.h>
 #include <gui/BufferItemConsumer.h>
 #include <gui/IProducerListener.h>
 #include <gui/Surface.h>
+#include <ui/GraphicBuffer.h>
 
 namespace android {
 
@@ -42,6 +44,17 @@
         BufferItemConsumerTest* mTest;
     };
 
+    struct TrackingProducerListener : public BnProducerListener {
+        TrackingProducerListener(BufferItemConsumerTest* test) : mTest(test) {}
+
+        virtual void onBufferReleased() override {}
+        virtual bool needsReleaseNotify() override { return true; }
+        virtual void onBuffersDiscarded(const std::vector<int32_t>&) override {}
+        virtual void onBufferDetached(int slot) override { mTest->HandleBufferDetached(slot); }
+
+        BufferItemConsumerTest* mTest;
+    };
+
     void SetUp() override {
         BufferQueue::createBufferQueue(&mProducer, &mConsumer);
         mBIC =
@@ -51,7 +64,7 @@
         mBFL = new BufferFreedListener(this);
         mBIC->setBufferFreedListener(mBFL);
 
-        sp<IProducerListener> producerListener = new StubProducerListener();
+        sp<IProducerListener> producerListener = new TrackingProducerListener(this);
         IGraphicBufferProducer::QueueBufferOutput bufferOutput;
         ASSERT_EQ(NO_ERROR,
                   mProducer->connect(producerListener, NATIVE_WINDOW_API_CPU,
@@ -71,6 +84,13 @@
         ALOGD("HandleBufferFreed, mFreedBufferCount=%d", mFreedBufferCount);
     }
 
+    void HandleBufferDetached(int slot) {
+        std::lock_guard<std::mutex> lock(mMutex);
+        mDetachedBufferSlots.push_back(slot);
+        ALOGD("HandleBufferDetached, slot=%d mDetachedBufferSlots-count=%zu", slot,
+              mDetachedBufferSlots.size());
+    }
+
     void DequeueBuffer(int* outSlot) {
         ASSERT_NE(outSlot, nullptr);
 
@@ -120,6 +140,7 @@
 
     std::mutex mMutex;
     int mFreedBufferCount{0};
+    std::vector<int> mDetachedBufferSlots = {};
 
     sp<BufferItemConsumer> mBIC;
     sp<BufferFreedListener> mBFL;
@@ -203,4 +224,19 @@
     ASSERT_EQ(1, GetFreedBufferCount());
 }
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+// Test that delete BufferItemConsumer triggers onBufferFreed.
+TEST_F(BufferItemConsumerTest, DetachBufferWithBuffer) {
+    int slot;
+    // Let buffer go through the cycle at least once.
+    DequeueBuffer(&slot);
+    QueueBuffer(slot);
+    AcquireBuffer(&slot);
+
+    sp<GraphicBuffer> buffer = mBuffers[slot];
+    EXPECT_EQ(OK, mBIC->detachBuffer(buffer));
+    EXPECT_THAT(mDetachedBufferSlots, testing::ElementsAre(slot));
+}
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
 }  // namespace android
diff --git a/libs/gui/tests/BufferQueue_test.cpp b/libs/gui/tests/BufferQueue_test.cpp
index 272c5ed..590e2c8 100644
--- a/libs/gui/tests/BufferQueue_test.cpp
+++ b/libs/gui/tests/BufferQueue_test.cpp
@@ -1262,6 +1262,91 @@
     ASSERT_TRUE(result == WOULD_BLOCK || result == TIMED_OUT || result == INVALID_OPERATION);
 }
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BQ_CONSUMER_ATTACH_CALLBACK)
+struct BufferAttachedListener : public BnProducerListener {
+public:
+    BufferAttachedListener(bool enable) : mEnabled(enable), mAttached(0) {}
+    virtual ~BufferAttachedListener() = default;
+
+    virtual void onBufferReleased() {}
+    virtual bool needsReleaseNotify() { return true; }
+    virtual void onBufferAttached() {
+        ++mAttached;
+    }
+    virtual bool needsAttachNotify() { return mEnabled; }
+
+    int getNumAttached() const { return mAttached; }
+private:
+    const bool mEnabled;
+    int mAttached;
+};
+
+TEST_F(BufferQueueTest, TestConsumerAttachProducerListener) {
+    createBufferQueue();
+    sp<MockConsumer> mc1(new MockConsumer);
+    ASSERT_EQ(OK, mConsumer->consumerConnect(mc1, true));
+    IGraphicBufferProducer::QueueBufferOutput output;
+    // Do not enable attach callback.
+    sp<BufferAttachedListener> pl1(new BufferAttachedListener(false));
+    ASSERT_EQ(OK, mProducer->connect(pl1, NATIVE_WINDOW_API_CPU, true, &output));
+    ASSERT_EQ(OK, mProducer->setDequeueTimeout(0));
+    ASSERT_EQ(OK, mConsumer->setMaxAcquiredBufferCount(1));
+
+    sp<Fence> fence = Fence::NO_FENCE;
+    sp<GraphicBuffer> buffer = nullptr;
+
+    int slot;
+    status_t result = OK;
+
+    ASSERT_EQ(OK, mProducer->setMaxDequeuedBufferCount(1));
+
+    result = mProducer->dequeueBuffer(&slot, &fence, 0, 0, 0,
+                                      GRALLOC_USAGE_SW_READ_RARELY, nullptr, nullptr);
+    ASSERT_EQ(IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION, result);
+    ASSERT_EQ(OK, mProducer->requestBuffer(slot, &buffer));
+    ASSERT_EQ(OK, mProducer->detachBuffer(slot));
+
+    // Check # of attach is zero.
+    ASSERT_EQ(0, pl1->getNumAttached());
+
+    // Attach a buffer and check the callback was not called.
+    ASSERT_EQ(OK, mConsumer->attachBuffer(&slot, buffer));
+    ASSERT_EQ(0, pl1->getNumAttached());
+
+    mProducer = nullptr;
+    mConsumer = nullptr;
+    createBufferQueue();
+
+    sp<MockConsumer> mc2(new MockConsumer);
+    ASSERT_EQ(OK, mConsumer->consumerConnect(mc2, true));
+    // Enable attach callback.
+    sp<BufferAttachedListener> pl2(new BufferAttachedListener(true));
+    ASSERT_EQ(OK, mProducer->connect(pl2, NATIVE_WINDOW_API_CPU, true, &output));
+    ASSERT_EQ(OK, mProducer->setDequeueTimeout(0));
+    ASSERT_EQ(OK, mConsumer->setMaxAcquiredBufferCount(1));
+
+    fence = Fence::NO_FENCE;
+    buffer = nullptr;
+
+    result = OK;
+
+    ASSERT_EQ(OK, mProducer->setMaxDequeuedBufferCount(1));
+
+    result = mProducer->dequeueBuffer(&slot, &fence, 0, 0, 0,
+                                      GRALLOC_USAGE_SW_READ_RARELY, nullptr, nullptr);
+    ASSERT_EQ(IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION, result);
+    ASSERT_EQ(OK, mProducer->requestBuffer(slot, &buffer));
+    ASSERT_EQ(OK, mProducer->detachBuffer(slot));
+
+    // Check # of attach is zero.
+    ASSERT_EQ(0, pl2->getNumAttached());
+
+    // Attach a buffer and check the callback was called.
+    ASSERT_EQ(OK, mConsumer->attachBuffer(&slot, buffer));
+    ASSERT_EQ(1, pl2->getNumAttached());
+}
+#endif
+
 TEST_F(BufferQueueTest, TestStaleBufferHandleSentAfterDisconnect) {
     createBufferQueue();
     sp<MockConsumer> mc(new MockConsumer);
diff --git a/libs/gui/tests/Surface_test.cpp b/libs/gui/tests/Surface_test.cpp
index ace4423..ee0c555 100644
--- a/libs/gui/tests/Surface_test.cpp
+++ b/libs/gui/tests/Surface_test.cpp
@@ -23,25 +23,33 @@
 #include <android/gui/IDisplayEventConnection.h>
 #include <android/gui/ISurfaceComposer.h>
 #include <android/hardware/configstore/1.0/ISurfaceFlingerConfigs.h>
+#include <android/hardware_buffer.h>
 #include <binder/ProcessState.h>
+#include <com_android_graphics_libgui_flags.h>
 #include <configstore/Utils.h>
 #include <gui/AidlStatusUtil.h>
 #include <gui/BufferItemConsumer.h>
-#include <gui/IProducerListener.h>
+#include <gui/BufferQueue.h>
+#include <gui/CpuConsumer.h>
+#include <gui/IConsumerListener.h>
+#include <gui/IGraphicBufferConsumer.h>
+#include <gui/IGraphicBufferProducer.h>
 #include <gui/ISurfaceComposer.h>
 #include <gui/Surface.h>
 #include <gui/SurfaceComposerClient.h>
 #include <gui/SyncScreenCaptureListener.h>
-#include <inttypes.h>
 #include <private/gui/ComposerService.h>
 #include <private/gui/ComposerServiceAIDL.h>
 #include <sys/types.h>
+#include <system/window.h>
 #include <ui/BufferQueueDefs.h>
 #include <ui/DisplayMode.h>
+#include <ui/GraphicBuffer.h>
 #include <ui/Rect.h>
 #include <utils/Errors.h>
 #include <utils/String8.h>
 
+#include <cstddef>
 #include <limits>
 #include <thread>
 
@@ -82,7 +90,7 @@
     virtual void onBuffersDiscarded(const std::vector<sp<GraphicBuffer>>& buffers) {
         mDiscardedBuffers.insert(mDiscardedBuffers.end(), buffers.begin(), buffers.end());
     }
-
+    virtual void onBufferDetached(int /*slot*/) {}
     int getReleaseNotifyCount() const {
         return mBuffersReleased;
     }
@@ -491,7 +499,7 @@
 
     sp<Surface> surface = new Surface(producer);
     sp<ANativeWindow> window(surface);
-    sp<StubProducerListener> listener = new StubProducerListener();
+    sp<StubSurfaceListener> listener = new StubSurfaceListener();
     ASSERT_EQ(OK, surface->connect(
             NATIVE_WINDOW_API_CPU,
             /*listener*/listener,
@@ -636,7 +644,7 @@
 
     status_t setTransactionState(
             const FrameTimelineInfo& /*frameTimelineInfo*/, Vector<ComposerState>& /*state*/,
-            const Vector<DisplayState>& /*displays*/, uint32_t /*flags*/,
+            Vector<DisplayState>& /*displays*/, uint32_t /*flags*/,
             const sp<IBinder>& /*applyToken*/, InputWindowCommands /*inputWindowCommands*/,
             int64_t /*desiredPresentTime*/, bool /*isAutoTimestamp*/,
             const std::vector<client_cache_t>& /*cachedBuffer*/, bool /*hasListenerCallbacks*/,
@@ -2154,7 +2162,7 @@
     sp<CpuConsumer> cpuConsumer = new CpuConsumer(consumer, 1);
     sp<Surface> surface = new Surface(producer);
     sp<ANativeWindow> window(surface);
-    sp<StubProducerListener> listener = new StubProducerListener();
+    sp<StubSurfaceListener> listener = new StubSurfaceListener();
 
     ASSERT_EQ(OK, surface->connect(NATIVE_WINDOW_API_CPU, /*listener*/listener,
             /*reportBufferRemoval*/false));
@@ -2206,7 +2214,7 @@
     sp<CpuConsumer> cpuConsumer = new CpuConsumer(consumer, 1);
     sp<Surface> surface = new Surface(producer);
     sp<ANativeWindow> window(surface);
-    sp<StubProducerListener> listener = new StubProducerListener();
+    sp<StubSurfaceListener> listener = new StubSurfaceListener();
 
     ASSERT_EQ(OK, surface->connect(NATIVE_WINDOW_API_CPU, /*listener*/listener,
             /*reportBufferRemoval*/false));
@@ -2226,4 +2234,160 @@
     ASSERT_EQ(NO_ERROR, surface->disconnect(NATIVE_WINDOW_API_CPU));
 }
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
+TEST_F(SurfaceTest, PlatformBufferMethods) {
+    sp<IGraphicBufferProducer> producer;
+    sp<IGraphicBufferConsumer> consumer;
+    BufferQueue::createBufferQueue(&producer, &consumer);
+
+    sp<CpuConsumer> cpuConsumer = sp<CpuConsumer>::make(consumer, 1);
+    sp<Surface> surface = sp<Surface>::make(producer);
+    sp<StubSurfaceListener> listener = sp<StubSurfaceListener>::make();
+    sp<GraphicBuffer> buffer;
+    sp<Fence> fence;
+
+    EXPECT_EQ(OK,
+              surface->connect(NATIVE_WINDOW_API_CPU, listener, /* reportBufferRemoval */ false));
+
+    //
+    // Verify nullptrs are handled safely:
+    //
+
+    EXPECT_EQ(BAD_VALUE, surface->dequeueBuffer((sp<GraphicBuffer>*)nullptr, nullptr));
+    EXPECT_EQ(BAD_VALUE, surface->dequeueBuffer((sp<GraphicBuffer>*)nullptr, &fence));
+    EXPECT_EQ(BAD_VALUE, surface->dequeueBuffer(&buffer, nullptr));
+    EXPECT_EQ(BAD_VALUE, surface->queueBuffer(nullptr, nullptr));
+    EXPECT_EQ(BAD_VALUE, surface->detachBuffer(nullptr));
+
+    //
+    // Verify dequeue/queue:
+    //
+
+    EXPECT_EQ(OK, surface->dequeueBuffer(&buffer, &fence));
+    EXPECT_NE(nullptr, buffer);
+    EXPECT_EQ(OK, surface->queueBuffer(buffer, fence));
+
+    //
+    // Verify dequeue/detach:
+    //
+
+    wp<GraphicBuffer> weakBuffer;
+    {
+        EXPECT_EQ(OK, surface->dequeueBuffer(&buffer, &fence));
+
+        EXPECT_EQ(OK, surface->detachBuffer(buffer));
+
+        weakBuffer = buffer;
+        buffer = nullptr;
+    }
+    EXPECT_EQ(nullptr, weakBuffer.promote()) << "Weak buffer still held by Surface.";
+
+    //
+    // Verify detach without borrowing the buffer does not work:
+    //
+
+    sp<GraphicBuffer> heldTooLongBuffer;
+    EXPECT_EQ(OK, surface->dequeueBuffer(&heldTooLongBuffer, &fence));
+    EXPECT_EQ(OK, surface->queueBuffer(heldTooLongBuffer));
+    EXPECT_EQ(BAD_VALUE, surface->detachBuffer(heldTooLongBuffer));
+}
+
+TEST_F(SurfaceTest, AllowAllocation) {
+    sp<IGraphicBufferProducer> producer;
+    sp<IGraphicBufferConsumer> consumer;
+    BufferQueue::createBufferQueue(&producer, &consumer);
+
+    // controlledByApp must be true to disable blocking
+    sp<CpuConsumer> cpuConsumer = sp<CpuConsumer>::make(consumer, 1, /*controlledByApp*/ true);
+    sp<Surface> surface = sp<Surface>::make(producer, /*controlledByApp*/ true);
+    sp<StubSurfaceListener> listener = sp<StubSurfaceListener>::make();
+    sp<GraphicBuffer> buffer;
+    sp<Fence> fence;
+
+    EXPECT_EQ(OK,
+              surface->connect(NATIVE_WINDOW_API_CPU, listener, /* reportBufferRemoval */ false));
+    EXPECT_EQ(OK, surface->allowAllocation(false));
+
+    EXPECT_EQ(OK, surface->setDequeueTimeout(-1));
+    EXPECT_EQ(WOULD_BLOCK, surface->dequeueBuffer(&buffer, &fence));
+
+    EXPECT_EQ(OK, surface->setDequeueTimeout(10));
+    EXPECT_EQ(TIMED_OUT, surface->dequeueBuffer(&buffer, &fence));
+
+    EXPECT_EQ(OK, surface->allowAllocation(true));
+    EXPECT_EQ(OK, surface->dequeueBuffer(&buffer, &fence));
+}
+
+TEST_F(SurfaceTest, QueueAcquireReleaseDequeue_CalledInStack_DoesNotDeadlock) {
+    class DequeuingSurfaceListener : public SurfaceListener {
+    public:
+        DequeuingSurfaceListener(const wp<Surface>& surface) : mSurface(surface) {}
+
+        virtual void onBufferReleased() override {
+            sp<Surface> surface = mSurface.promote();
+            ASSERT_NE(nullptr, surface);
+            EXPECT_EQ(OK, surface->dequeueBuffer(&mBuffer, &mFence));
+        }
+
+        virtual bool needsReleaseNotify() override { return true; }
+        virtual void onBuffersDiscarded(const std::vector<sp<GraphicBuffer>>&) override {}
+        virtual void onBufferDetached(int) override {}
+
+        sp<GraphicBuffer> mBuffer;
+        sp<Fence> mFence;
+
+    private:
+        wp<Surface> mSurface;
+    };
+
+    class ImmediateReleaseConsumerListener : public BufferItemConsumer::FrameAvailableListener {
+    public:
+        ImmediateReleaseConsumerListener(const wp<BufferItemConsumer>& consumer)
+              : mConsumer(consumer) {}
+
+        virtual void onFrameAvailable(const BufferItem&) override {
+            sp<BufferItemConsumer> consumer = mConsumer.promote();
+            ASSERT_NE(nullptr, consumer);
+
+            mCalls += 1;
+
+            BufferItem buffer;
+            EXPECT_EQ(OK, consumer->acquireBuffer(&buffer, 0));
+            EXPECT_EQ(OK, consumer->releaseBuffer(buffer));
+        }
+
+        size_t mCalls = 0;
+
+    private:
+        wp<BufferItemConsumer> mConsumer;
+    };
+
+    sp<IGraphicBufferProducer> bqProducer;
+    sp<IGraphicBufferConsumer> bqConsumer;
+    BufferQueue::createBufferQueue(&bqProducer, &bqConsumer);
+
+    sp<BufferItemConsumer> consumer = sp<BufferItemConsumer>::make(bqConsumer, 3);
+    sp<Surface> surface = sp<Surface>::make(bqProducer);
+    sp<ImmediateReleaseConsumerListener> consumerListener =
+            sp<ImmediateReleaseConsumerListener>::make(consumer);
+    consumer->setFrameAvailableListener(consumerListener);
+
+    sp<DequeuingSurfaceListener> surfaceListener = sp<DequeuingSurfaceListener>::make(surface);
+    EXPECT_EQ(OK, surface->connect(NATIVE_WINDOW_API_CPU, false, surfaceListener));
+
+    EXPECT_EQ(OK, surface->setMaxDequeuedBufferCount(2));
+
+    sp<GraphicBuffer> buffer;
+    sp<Fence> fence;
+    EXPECT_EQ(OK, surface->dequeueBuffer(&buffer, &fence));
+    EXPECT_EQ(OK, surface->queueBuffer(buffer, fence));
+
+    EXPECT_EQ(1u, consumerListener->mCalls);
+    EXPECT_NE(nullptr, surfaceListener->mBuffer);
+
+    EXPECT_EQ(OK, surface->disconnect(NATIVE_WINDOW_API_CPU));
+}
+#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 3830751..500f7b4 100644
--- a/libs/input/input_flags.aconfig
+++ b/libs/input/input_flags.aconfig
@@ -37,6 +37,13 @@
 }
 
 flag {
+  name: "split_all_touches"
+  namespace: "input"
+  description: "Set FLAG_SPLIT_TOUCHES to true for all windows, regardless of what they specify. This is essentially deprecating this flag by forcefully enabling the split functionality"
+  bug: "239934827"
+}
+
+flag {
   name: "a11y_crash_on_inconsistent_event_stream"
   namespace: "accessibility"
   description: "Brings back fatal logging for inconsistent event streams originating from accessibility."
diff --git a/libs/renderengine/skia/GraphiteVkRenderEngine.cpp b/libs/renderengine/skia/GraphiteVkRenderEngine.cpp
index b5cb21b..390ad6e 100644
--- a/libs/renderengine/skia/GraphiteVkRenderEngine.cpp
+++ b/libs/renderengine/skia/GraphiteVkRenderEngine.cpp
@@ -23,6 +23,7 @@
 #include <include/gpu/graphite/BackendSemaphore.h>
 #include <include/gpu/graphite/Context.h>
 #include <include/gpu/graphite/Recording.h>
+#include <include/gpu/graphite/vk/VulkanGraphiteTypes.h>
 
 #include <log/log_main.h>
 #include <sync/sync.h>
@@ -77,7 +78,7 @@
     base::unique_fd fenceDup(dupedFd);
     VkSemaphore waitSemaphore =
             getVulkanInterface(isProtected()).importSemaphoreFromSyncFd(fenceDup.release());
-    graphite::BackendSemaphore beSemaphore(waitSemaphore);
+    auto beSemaphore = graphite::BackendSemaphores::MakeVulkan(waitSemaphore);
     mStagedWaitSemaphores.push_back(beSemaphore);
 }
 
@@ -92,7 +93,7 @@
     // This "signal" semaphore is called after rendering, but it is cleaned up in the same mechanism
     // as "wait" semaphores from waitFence.
     VkSemaphore vkSignalSemaphore = vulkanInterface.createExportableSemaphore();
-    graphite::BackendSemaphore backendSignalSemaphore(vkSignalSemaphore);
+    auto backendSignalSemaphore = graphite::BackendSemaphores::MakeVulkan(vkSignalSemaphore);
 
     // Collect all Vk semaphores that DestroySemaphoreInfo needs to own and delete after GPU work.
     std::vector<VkSemaphore> vkSemaphoresToCleanUp;
@@ -100,7 +101,8 @@
         vkSemaphoresToCleanUp.push_back(vkSignalSemaphore);
     }
     for (auto backendWaitSemaphore : mStagedWaitSemaphores) {
-        vkSemaphoresToCleanUp.push_back(backendWaitSemaphore.getVkSemaphore());
+        vkSemaphoresToCleanUp.push_back(
+            graphite::BackendSemaphores::GetVkSemaphore(backendWaitSemaphore));
     }
 
     DestroySemaphoreInfo* destroySemaphoreInfo = nullptr;
diff --git a/services/gpuservice/bpfprogs/Android.bp b/services/gpuservice/bpfprogs/Android.bp
index 680b291..a391c81 100644
--- a/services/gpuservice/bpfprogs/Android.bp
+++ b/services/gpuservice/bpfprogs/Android.bp
@@ -24,9 +24,4 @@
 bpf {
     name: "gpuMem.o",
     srcs: ["gpuMem.c"],
-    btf: true,
-    cflags: [
-        "-Wall",
-        "-Werror",
-    ],
 }
diff --git a/services/gpuservice/gpuwork/bpfprogs/Android.bp b/services/gpuservice/gpuwork/bpfprogs/Android.bp
index fe45c98..8e872fb 100644
--- a/services/gpuservice/gpuwork/bpfprogs/Android.bp
+++ b/services/gpuservice/gpuwork/bpfprogs/Android.bp
@@ -19,12 +19,10 @@
 bpf {
     name: "gpuWork.o",
     srcs: ["gpuWork.c"],
+    // Without btf disabled, presubmits will fail.
+    btf: false,
     cflags: [
-        "-Wall",
-        "-Werror",
-        "-Wformat",
         "-Wthread-safety",
-        "-Wunused",
         "-Wunreachable-code",
     ],
 }
diff --git a/services/inputflinger/TEST_MAPPING b/services/inputflinger/TEST_MAPPING
index a4dd909..018de5d 100644
--- a/services/inputflinger/TEST_MAPPING
+++ b/services/inputflinger/TEST_MAPPING
@@ -149,6 +149,9 @@
     },
     {
       "name": "monkey_test"
+    },
+    {
+      "name": "CtsSurfaceControlTests"
     }
   ],
   "postsubmit": [
diff --git a/services/inputflinger/dispatcher/InputDispatcher.cpp b/services/inputflinger/dispatcher/InputDispatcher.cpp
index 4076817..af4a04d 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.cpp
+++ b/services/inputflinger/dispatcher/InputDispatcher.cpp
@@ -2448,12 +2448,19 @@
         if (isDown) {
             targets += findOutsideTargetsLocked(displayId, newTouchedWindowHandle, pointer.id);
         }
+        LOG_IF(INFO, newTouchedWindowHandle == nullptr)
+                << "No new touched window at (" << std::format("{:.1f}, {:.1f}", x, y)
+                << ") in display " << displayId;
         // Handle the case where we did not find a window.
-        if (newTouchedWindowHandle == nullptr) {
-            ALOGD("No new touched window at (%.1f, %.1f) in display %s", x, y,
-                  displayId.toString().c_str());
-            // Try to assign the pointer to the first foreground window we find, if there is one.
-            newTouchedWindowHandle = tempTouchState.getFirstForegroundWindowHandle(entry.deviceId);
+        if (!input_flags::split_all_touches()) {
+            // If we are force splitting all touches, then touches outside of the window should
+            // be dropped, even if this device already has pointers down in another window.
+            if (newTouchedWindowHandle == nullptr) {
+                // Try to assign the pointer to the first foreground window we find, if there is
+                // one.
+                newTouchedWindowHandle =
+                        tempTouchState.getFirstForegroundWindowHandle(entry.deviceId);
+            }
         }
 
         // Verify targeted injection.
@@ -7007,6 +7014,13 @@
     for (const auto& info : update.windowInfos) {
         handlesPerDisplay.emplace(info.displayId, std::vector<sp<WindowInfoHandle>>());
         handlesPerDisplay[info.displayId].push_back(sp<WindowInfoHandle>::make(info));
+        if (input_flags::split_all_touches()) {
+            handlesPerDisplay[info.displayId]
+                    .back()
+                    ->editInfo()
+                    ->setInputConfig(android::gui::WindowInfo::InputConfig::PREVENT_SPLITTING,
+                                     false);
+        }
     }
 
     { // acquire lock
diff --git a/services/inputflinger/reader/EventHub.cpp b/services/inputflinger/reader/EventHub.cpp
index e48e94f..e11adb8 100644
--- a/services/inputflinger/reader/EventHub.cpp
+++ b/services/inputflinger/reader/EventHub.cpp
@@ -517,10 +517,10 @@
 
 // --- RawAbsoluteAxisInfo ---
 
-std::ostream& operator<<(std::ostream& out, const RawAbsoluteAxisInfo& info) {
-    if (info.valid) {
-        out << "min=" << info.minValue << ", max=" << info.maxValue << ", flat=" << info.flat
-            << ", fuzz=" << info.fuzz << ", resolution=" << info.resolution;
+std::ostream& operator<<(std::ostream& out, const std::optional<RawAbsoluteAxisInfo>& info) {
+    if (info) {
+        out << "min=" << info->minValue << ", max=" << info->maxValue << ", flat=" << info->flat
+            << ", fuzz=" << info->fuzz << ", resolution=" << info->resolution;
     } else {
         out << "unknown range";
     }
@@ -649,7 +649,6 @@
             continue;
         }
         auto& [axisInfo, value] = absState[axis];
-        axisInfo.valid = true;
         axisInfo.minValue = info.minimum;
         axisInfo.maxValue = info.maximum;
         axisInfo.flat = info.flat;
diff --git a/services/inputflinger/reader/include/EventHub.h b/services/inputflinger/reader/include/EventHub.h
index feae6b6..657126a 100644
--- a/services/inputflinger/reader/include/EventHub.h
+++ b/services/inputflinger/reader/include/EventHub.h
@@ -71,18 +71,14 @@
 
 /* Describes an absolute axis. */
 struct RawAbsoluteAxisInfo {
-    bool valid{false}; // true if the information is valid, false otherwise
-
     int32_t minValue{};   // minimum value
     int32_t maxValue{};   // maximum value
     int32_t flat{};       // center flat position, eg. flat == 8 means center is between -8 and 8
     int32_t fuzz{};       // error tolerance, eg. fuzz == 4 means value is +/- 4 due to noise
     int32_t resolution{}; // resolution in units per mm or radians per mm
-
-    inline void clear() { *this = RawAbsoluteAxisInfo(); }
 };
 
-std::ostream& operator<<(std::ostream& out, const RawAbsoluteAxisInfo& info);
+std::ostream& operator<<(std::ostream& out, const std::optional<RawAbsoluteAxisInfo>& info);
 
 /*
  * Input device classes.
diff --git a/services/inputflinger/reader/include/InputDevice.h b/services/inputflinger/reader/include/InputDevice.h
index 086c26f..93785f6 100644
--- a/services/inputflinger/reader/include/InputDevice.h
+++ b/services/inputflinger/reader/include/InputDevice.h
@@ -43,7 +43,7 @@
 public:
     InputDevice(InputReaderContext* context, int32_t id, int32_t generation,
                 const InputDeviceIdentifier& identifier);
-    ~InputDevice();
+    virtual ~InputDevice();
 
     inline InputReaderContext* getContext() { return mContext; }
     inline int32_t getId() const { return mId; }
@@ -56,7 +56,7 @@
     }
     inline const std::string getLocation() const { return mIdentifier.location; }
     inline ftl::Flags<InputDeviceClass> getClasses() const { return mClasses; }
-    inline uint32_t getSources() const { return mSources; }
+    inline virtual uint32_t getSources() const { return mSources; }
     inline bool hasEventHubDevices() const { return !mDevices.empty(); }
 
     inline bool isExternal() { return mIsExternal; }
@@ -72,7 +72,7 @@
     inline std::optional<std::string> getDeviceTypeAssociation() const {
         return mAssociatedDeviceType;
     }
-    inline std::optional<DisplayViewport> getAssociatedViewport() const {
+    inline virtual std::optional<DisplayViewport> getAssociatedViewport() const {
         return mAssociatedViewport;
     }
     inline bool hasMic() const { return mHasMic; }
@@ -132,7 +132,7 @@
 
     [[nodiscard]] NotifyDeviceResetArgs notifyReset(nsecs_t when);
 
-    inline const PropertyMap& getConfiguration() { return mConfiguration; }
+    inline virtual const PropertyMap& getConfiguration() const { return mConfiguration; }
     inline EventHubInterface* getEventHub() { return mContext->getEventHub(); }
 
     std::optional<ui::LogicalDisplayId> getAssociatedDisplayId();
@@ -299,28 +299,24 @@
     inline ftl::Flags<InputDeviceClass> getDeviceClasses() const {
         return mEventHub->getDeviceClasses(mId);
     }
+    inline uint32_t getDeviceSources() const { return mDevice.getSources(); }
     inline InputDeviceIdentifier getDeviceIdentifier() const {
         return mEventHub->getDeviceIdentifier(mId);
     }
     inline int32_t getDeviceControllerNumber() const {
         return mEventHub->getDeviceControllerNumber(mId);
     }
-    inline status_t getAbsoluteAxisInfo(int32_t code, RawAbsoluteAxisInfo* axisInfo) const {
+    inline std::optional<RawAbsoluteAxisInfo> getAbsoluteAxisInfo(int32_t code) const {
         std::optional<RawAbsoluteAxisInfo> info = mEventHub->getAbsoluteAxisInfo(mId, code);
-        if (!info.has_value()) {
-            axisInfo->clear();
-            return NAME_NOT_FOUND;
-        }
-        *axisInfo = *info;
 
         // Validate axis info for InputDevice.
-        if (axisInfo->valid && axisInfo->minValue == axisInfo->maxValue) {
+        if (info && info->minValue == info->maxValue) {
             // Historically, we deem axes with the same min and max values as invalid to avoid
             // dividing by zero when scaling by max - min.
             // TODO(b/291772515): Perform axis info validation on a per-axis basis when it is used.
-            axisInfo->valid = false;
+            return std::nullopt;
         }
-        return OK;
+        return info;
     }
     inline bool hasRelativeAxis(int32_t code) const {
         return mEventHub->hasRelativeAxis(mId, code);
@@ -435,8 +431,7 @@
     }
 
     inline bool hasAbsoluteAxis(int32_t code) const {
-        std::optional<RawAbsoluteAxisInfo> info = mEventHub->getAbsoluteAxisInfo(mId, code);
-        return info.has_value() && info->valid;
+        return mEventHub->getAbsoluteAxisInfo(mId, code).has_value();
     }
     inline bool isKeyPressed(int32_t scanCode) const {
         return mEventHub->getScanCodeState(mId, scanCode) == AKEY_STATE_DOWN;
diff --git a/services/inputflinger/reader/mapper/CapturedTouchpadEventConverter.cpp b/services/inputflinger/reader/mapper/CapturedTouchpadEventConverter.cpp
index 90685de..c8e7790 100644
--- a/services/inputflinger/reader/mapper/CapturedTouchpadEventConverter.cpp
+++ b/services/inputflinger/reader/mapper/CapturedTouchpadEventConverter.cpp
@@ -16,6 +16,7 @@
 
 #include "CapturedTouchpadEventConverter.h"
 
+#include <optional>
 #include <sstream>
 
 #include <android-base/stringprintf.h>
@@ -53,32 +54,33 @@
         mMotionAccumulator(motionAccumulator),
         mHasTouchMinor(deviceContext.hasAbsoluteAxis(ABS_MT_TOUCH_MINOR)),
         mHasToolMinor(deviceContext.hasAbsoluteAxis(ABS_MT_WIDTH_MINOR)) {
-    RawAbsoluteAxisInfo orientationInfo;
-    deviceContext.getAbsoluteAxisInfo(ABS_MT_ORIENTATION, &orientationInfo);
-    if (orientationInfo.valid) {
-        if (orientationInfo.maxValue > 0) {
-            mOrientationScale = M_PI_2 / orientationInfo.maxValue;
-        } else if (orientationInfo.minValue < 0) {
-            mOrientationScale = -M_PI_2 / orientationInfo.minValue;
+    if (std::optional<RawAbsoluteAxisInfo> orientation =
+                deviceContext.getAbsoluteAxisInfo(ABS_MT_ORIENTATION);
+        orientation) {
+        if (orientation->maxValue > 0) {
+            mOrientationScale = M_PI_2 / orientation->maxValue;
+        } else if (orientation->minValue < 0) {
+            mOrientationScale = -M_PI_2 / orientation->minValue;
         }
     }
 
     // TODO(b/275369880): support touch.pressure.calibration and .scale properties when captured.
-    RawAbsoluteAxisInfo pressureInfo;
-    deviceContext.getAbsoluteAxisInfo(ABS_MT_PRESSURE, &pressureInfo);
-    if (pressureInfo.valid && pressureInfo.maxValue > 0) {
-        mPressureScale = 1.0 / pressureInfo.maxValue;
+    if (std::optional<RawAbsoluteAxisInfo> pressure =
+                deviceContext.getAbsoluteAxisInfo(ABS_MT_PRESSURE);
+        pressure && pressure->maxValue > 0) {
+        mPressureScale = 1.0 / pressure->maxValue;
     }
 
-    RawAbsoluteAxisInfo touchMajorInfo, toolMajorInfo;
-    deviceContext.getAbsoluteAxisInfo(ABS_MT_TOUCH_MAJOR, &touchMajorInfo);
-    deviceContext.getAbsoluteAxisInfo(ABS_MT_WIDTH_MAJOR, &toolMajorInfo);
-    mHasTouchMajor = touchMajorInfo.valid;
-    mHasToolMajor = toolMajorInfo.valid;
-    if (mHasTouchMajor && touchMajorInfo.maxValue != 0) {
-        mSizeScale = 1.0f / touchMajorInfo.maxValue;
-    } else if (mHasToolMajor && toolMajorInfo.maxValue != 0) {
-        mSizeScale = 1.0f / toolMajorInfo.maxValue;
+    std::optional<RawAbsoluteAxisInfo> touchMajor =
+            deviceContext.getAbsoluteAxisInfo(ABS_MT_TOUCH_MAJOR);
+    std::optional<RawAbsoluteAxisInfo> toolMajor =
+            deviceContext.getAbsoluteAxisInfo(ABS_MT_WIDTH_MAJOR);
+    mHasTouchMajor = touchMajor.has_value();
+    mHasToolMajor = toolMajor.has_value();
+    if (mHasTouchMajor && touchMajor->maxValue != 0) {
+        mSizeScale = 1.0f / touchMajor->maxValue;
+    } else if (mHasToolMajor && toolMajor->maxValue != 0) {
+        mSizeScale = 1.0f / toolMajor->maxValue;
     }
 }
 
@@ -113,15 +115,13 @@
     tryAddRawMotionRange(/*byref*/ info, AMOTION_EVENT_AXIS_TOOL_MAJOR, ABS_MT_WIDTH_MAJOR);
     tryAddRawMotionRange(/*byref*/ info, AMOTION_EVENT_AXIS_TOOL_MINOR, ABS_MT_WIDTH_MINOR);
 
-    RawAbsoluteAxisInfo pressureInfo;
-    mDeviceContext.getAbsoluteAxisInfo(ABS_MT_PRESSURE, &pressureInfo);
-    if (pressureInfo.valid) {
+    if (mDeviceContext.hasAbsoluteAxis(ABS_MT_PRESSURE)) {
         info.addMotionRange(AMOTION_EVENT_AXIS_PRESSURE, SOURCE, 0, 1, 0, 0, 0);
     }
 
-    RawAbsoluteAxisInfo orientationInfo;
-    mDeviceContext.getAbsoluteAxisInfo(ABS_MT_ORIENTATION, &orientationInfo);
-    if (orientationInfo.valid && (orientationInfo.maxValue > 0 || orientationInfo.minValue < 0)) {
+    if (std::optional<RawAbsoluteAxisInfo> orientation =
+                mDeviceContext.getAbsoluteAxisInfo(ABS_MT_ORIENTATION);
+        orientation && (orientation->maxValue > 0 || orientation->minValue < 0)) {
         info.addMotionRange(AMOTION_EVENT_AXIS_ORIENTATION, SOURCE, -M_PI_2, M_PI_2, 0, 0, 0);
     }
 
@@ -133,11 +133,10 @@
 void CapturedTouchpadEventConverter::tryAddRawMotionRange(InputDeviceInfo& deviceInfo,
                                                           int32_t androidAxis,
                                                           int32_t evdevAxis) const {
-    RawAbsoluteAxisInfo info;
-    mDeviceContext.getAbsoluteAxisInfo(evdevAxis, &info);
-    if (info.valid) {
-        deviceInfo.addMotionRange(androidAxis, SOURCE, info.minValue, info.maxValue, info.flat,
-                                  info.fuzz, info.resolution);
+    std::optional<RawAbsoluteAxisInfo> info = mDeviceContext.getAbsoluteAxisInfo(evdevAxis);
+    if (info) {
+        deviceInfo.addMotionRange(androidAxis, SOURCE, info->minValue, info->maxValue, info->flat,
+                                  info->fuzz, info->resolution);
     }
 }
 
diff --git a/services/inputflinger/reader/mapper/CursorInputMapper.h b/services/inputflinger/reader/mapper/CursorInputMapper.h
index 2108488..3fc370c 100644
--- a/services/inputflinger/reader/mapper/CursorInputMapper.h
+++ b/services/inputflinger/reader/mapper/CursorInputMapper.h
@@ -25,9 +25,6 @@
 
 namespace android {
 
-class CursorButtonAccumulator;
-class CursorScrollAccumulator;
-
 /* Keeps track of cursor movements. */
 class CursorMotionAccumulator {
 public:
diff --git a/services/inputflinger/reader/mapper/ExternalStylusInputMapper.cpp b/services/inputflinger/reader/mapper/ExternalStylusInputMapper.cpp
index 3af1d04..7cc8940 100644
--- a/services/inputflinger/reader/mapper/ExternalStylusInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/ExternalStylusInputMapper.cpp
@@ -33,7 +33,7 @@
 
 void ExternalStylusInputMapper::populateDeviceInfo(InputDeviceInfo& info) {
     InputMapper::populateDeviceInfo(info);
-    if (mRawPressureAxis.valid) {
+    if (mRawPressureAxis) {
         info.addMotionRange(AMOTION_EVENT_AXIS_PRESSURE, AINPUT_SOURCE_STYLUS, 0.0f, 1.0f, 0.0f,
                             0.0f, 0.0f);
     }
@@ -50,7 +50,7 @@
 std::list<NotifyArgs> ExternalStylusInputMapper::reconfigure(nsecs_t when,
                                                              const InputReaderConfiguration& config,
                                                              ConfigurationChanges changes) {
-    getAbsoluteAxisInfo(ABS_PRESSURE, &mRawPressureAxis);
+    mRawPressureAxis = getAbsoluteAxisInfo(ABS_PRESSURE);
     mTouchButtonAccumulator.configure();
     return {};
 }
@@ -82,10 +82,10 @@
         mStylusState.toolType = ToolType::STYLUS;
     }
 
-    if (mRawPressureAxis.valid) {
+    if (mRawPressureAxis) {
         auto rawPressure = static_cast<float>(mSingleTouchMotionAccumulator.getAbsolutePressure());
-        mStylusState.pressure = (rawPressure - mRawPressureAxis.minValue) /
-                static_cast<float>(mRawPressureAxis.maxValue - mRawPressureAxis.minValue);
+        mStylusState.pressure = (rawPressure - mRawPressureAxis->minValue) /
+                static_cast<float>(mRawPressureAxis->maxValue - mRawPressureAxis->minValue);
     } else if (mTouchButtonAccumulator.hasButtonTouch()) {
         mStylusState.pressure = mTouchButtonAccumulator.isHovering() ? 0.0f : 1.0f;
     }
diff --git a/services/inputflinger/reader/mapper/ExternalStylusInputMapper.h b/services/inputflinger/reader/mapper/ExternalStylusInputMapper.h
index c040a7b..d48fd9b 100644
--- a/services/inputflinger/reader/mapper/ExternalStylusInputMapper.h
+++ b/services/inputflinger/reader/mapper/ExternalStylusInputMapper.h
@@ -16,6 +16,8 @@
 
 #pragma once
 
+#include <optional>
+
 #include "InputMapper.h"
 
 #include "SingleTouchMotionAccumulator.h"
@@ -43,7 +45,7 @@
 
 private:
     SingleTouchMotionAccumulator mSingleTouchMotionAccumulator;
-    RawAbsoluteAxisInfo mRawPressureAxis;
+    std::optional<RawAbsoluteAxisInfo> mRawPressureAxis;
     TouchButtonAccumulator mTouchButtonAccumulator;
 
     StylusState mStylusState;
diff --git a/services/inputflinger/reader/mapper/InputMapper.cpp b/services/inputflinger/reader/mapper/InputMapper.cpp
index b6c5c98..c44c48c 100644
--- a/services/inputflinger/reader/mapper/InputMapper.cpp
+++ b/services/inputflinger/reader/mapper/InputMapper.cpp
@@ -18,6 +18,7 @@
 
 #include "InputMapper.h"
 
+#include <optional>
 #include <sstream>
 
 #include <ftl/enum.h>
@@ -116,15 +117,16 @@
     return {};
 }
 
-status_t InputMapper::getAbsoluteAxisInfo(int32_t axis, RawAbsoluteAxisInfo* axisInfo) {
-    return getDeviceContext().getAbsoluteAxisInfo(axis, axisInfo);
+std::optional<RawAbsoluteAxisInfo> InputMapper::getAbsoluteAxisInfo(int32_t axis) {
+    return getDeviceContext().getAbsoluteAxisInfo(axis);
 }
 
 void InputMapper::bumpGeneration() {
     getDeviceContext().bumpGeneration();
 }
 
-void InputMapper::dumpRawAbsoluteAxisInfo(std::string& dump, const RawAbsoluteAxisInfo& axis,
+void InputMapper::dumpRawAbsoluteAxisInfo(std::string& dump,
+                                          const std::optional<RawAbsoluteAxisInfo>& axis,
                                           const char* name) {
     std::stringstream out;
     out << INDENT4 << name << ": " << axis << "\n";
diff --git a/services/inputflinger/reader/mapper/InputMapper.h b/services/inputflinger/reader/mapper/InputMapper.h
index 2c51448..e5afcc7 100644
--- a/services/inputflinger/reader/mapper/InputMapper.h
+++ b/services/inputflinger/reader/mapper/InputMapper.h
@@ -16,6 +16,8 @@
 
 #pragma once
 
+#include <optional>
+
 #include "EventHub.h"
 #include "InputDevice.h"
 #include "InputListener.h"
@@ -126,10 +128,11 @@
     explicit InputMapper(InputDeviceContext& deviceContext,
                          const InputReaderConfiguration& readerConfig);
 
-    status_t getAbsoluteAxisInfo(int32_t axis, RawAbsoluteAxisInfo* axisInfo);
+    std::optional<RawAbsoluteAxisInfo> getAbsoluteAxisInfo(int32_t axis);
     void bumpGeneration();
 
-    static void dumpRawAbsoluteAxisInfo(std::string& dump, const RawAbsoluteAxisInfo& axis,
+    static void dumpRawAbsoluteAxisInfo(std::string& dump,
+                                        const std::optional<RawAbsoluteAxisInfo>& axis,
                                         const char* name);
     static void dumpStylusState(std::string& dump, const StylusState& state);
 };
diff --git a/services/inputflinger/reader/mapper/JoystickInputMapper.cpp b/services/inputflinger/reader/mapper/JoystickInputMapper.cpp
index 41e018d..3091714 100644
--- a/services/inputflinger/reader/mapper/JoystickInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/JoystickInputMapper.cpp
@@ -117,9 +117,8 @@
                 continue; // axis must be claimed by a different device
             }
 
-            RawAbsoluteAxisInfo rawAxisInfo;
-            getAbsoluteAxisInfo(abs, &rawAxisInfo);
-            if (rawAxisInfo.valid) {
+            if (std::optional<RawAbsoluteAxisInfo> rawAxisInfo = getAbsoluteAxisInfo(abs);
+                rawAxisInfo) {
                 // Map axis.
                 AxisInfo axisInfo;
                 const bool explicitlyMapped = !getDeviceContext().mapAxis(abs, &axisInfo);
@@ -129,7 +128,7 @@
                     axisInfo.mode = AxisInfo::MODE_NORMAL;
                     axisInfo.axis = -1;
                 }
-                mAxes.insert({abs, createAxis(axisInfo, rawAxisInfo, explicitlyMapped)});
+                mAxes.insert({abs, createAxis(axisInfo, rawAxisInfo.value(), explicitlyMapped)});
             }
         }
 
diff --git a/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp b/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp
index 4a21e48..38dcd65 100644
--- a/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp
@@ -98,10 +98,10 @@
 KeyboardInputMapper::KeyboardInputMapper(InputDeviceContext& deviceContext,
                                          const InputReaderConfiguration& readerConfig,
                                          uint32_t source)
-      : InputMapper(deviceContext, readerConfig), mSource(source) {}
+      : InputMapper(deviceContext, readerConfig), mMapperSource(source) {}
 
 uint32_t KeyboardInputMapper::getSources() const {
-    return mSource;
+    return mMapperSource;
 }
 
 ui::Rotation KeyboardInputMapper::getOrientation() {
@@ -351,8 +351,8 @@
         policyFlags |= POLICY_FLAG_DISABLE_KEY_REPEAT;
     }
 
-    out.emplace_back(NotifyKeyArgs(getContext()->getNextId(), when, readTime, deviceId, mSource,
-                                   getDisplayId(), policyFlags,
+    out.emplace_back(NotifyKeyArgs(getContext()->getNextId(), when, readTime, deviceId,
+                                   getEventSource(), getDisplayId(), policyFlags,
                                    down ? AKEY_EVENT_ACTION_DOWN : AKEY_EVENT_ACTION_UP, flags,
                                    keyCode, scanCode, keyMetaState, downTime));
     return out;
@@ -478,12 +478,12 @@
     std::list<NotifyArgs> out;
     size_t n = mKeyDowns.size();
     for (size_t i = 0; i < n; i++) {
-        out.emplace_back(NotifyKeyArgs(getContext()->getNextId(), when,
-                                       systemTime(SYSTEM_TIME_MONOTONIC), getDeviceId(), mSource,
-                                       getDisplayId(), /*policyFlags=*/0, AKEY_EVENT_ACTION_UP,
-                                       mKeyDowns[i].flags | AKEY_EVENT_FLAG_CANCELED,
-                                       mKeyDowns[i].keyCode, mKeyDowns[i].scanCode, AMETA_NONE,
-                                       mKeyDowns[i].downTime));
+        out.emplace_back(
+                NotifyKeyArgs(getContext()->getNextId(), when, systemTime(SYSTEM_TIME_MONOTONIC),
+                              getDeviceId(), getEventSource(), getDisplayId(), /*policyFlags=*/0,
+                              AKEY_EVENT_ACTION_UP, mKeyDowns[i].flags | AKEY_EVENT_FLAG_CANCELED,
+                              mKeyDowns[i].keyCode, mKeyDowns[i].scanCode, AMETA_NONE,
+                              mKeyDowns[i].downTime));
     }
     mKeyDowns.clear();
     mMetaState = AMETA_NONE;
@@ -495,4 +495,14 @@
     context.setLastKeyDownTimestamp(downTime);
 }
 
+uint32_t KeyboardInputMapper::getEventSource() const {
+    // For all input events generated by this mapper, use the source that's shared across all
+    // KeyboardInputMappers for this device in case there are more than one.
+    static constexpr auto ALL_KEYBOARD_SOURCES =
+            AINPUT_SOURCE_KEYBOARD | AINPUT_SOURCE_DPAD | AINPUT_SOURCE_GAMEPAD;
+    const auto deviceSources = getDeviceContext().getDeviceSources();
+    LOG_ALWAYS_FATAL_IF((deviceSources & mMapperSource) != mMapperSource);
+    return deviceSources & ALL_KEYBOARD_SOURCES;
+}
+
 } // namespace android
diff --git a/services/inputflinger/reader/mapper/KeyboardInputMapper.h b/services/inputflinger/reader/mapper/KeyboardInputMapper.h
index c7df558..2df0b85 100644
--- a/services/inputflinger/reader/mapper/KeyboardInputMapper.h
+++ b/services/inputflinger/reader/mapper/KeyboardInputMapper.h
@@ -60,7 +60,10 @@
         int32_t flags{};
     };
 
-    uint32_t mSource{};
+    // The keyboard source for this mapper. Events generated should use the source shared
+    // by all KeyboardInputMappers for this input device.
+    uint32_t mMapperSource{};
+
     std::optional<KeyboardLayoutInfo> mKeyboardLayoutInfo;
 
     std::vector<KeyDown> mKeyDowns{}; // keys that are down
@@ -106,6 +109,7 @@
     std::optional<DisplayViewport> findViewport(const InputReaderConfiguration& readerConfig);
     [[nodiscard]] std::list<NotifyArgs> cancelAllDownKeys(nsecs_t when);
     void onKeyDownProcessed(nsecs_t downTime);
+    uint32_t getEventSource() const;
 };
 
 } // namespace android
diff --git a/services/inputflinger/reader/mapper/MultiTouchInputMapper.cpp b/services/inputflinger/reader/mapper/MultiTouchInputMapper.cpp
index 1986fe2..fd8224a 100644
--- a/services/inputflinger/reader/mapper/MultiTouchInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/MultiTouchInputMapper.cpp
@@ -133,7 +133,7 @@
 
         bool isHovering = mTouchButtonAccumulator.getToolType() != ToolType::MOUSE &&
                 (mTouchButtonAccumulator.isHovering() ||
-                 (mRawPointerAxes.pressure.valid && inSlot.getPressure() <= 0));
+                 (mRawPointerAxes.pressure && inSlot.getPressure() <= 0));
         outPointer.isHovering = isHovering;
 
         // Assign pointer id using tracking id if available.
@@ -189,21 +189,27 @@
 void MultiTouchInputMapper::configureRawPointerAxes() {
     TouchInputMapper::configureRawPointerAxes();
 
-    getAbsoluteAxisInfo(ABS_MT_POSITION_X, &mRawPointerAxes.x);
-    getAbsoluteAxisInfo(ABS_MT_POSITION_Y, &mRawPointerAxes.y);
-    getAbsoluteAxisInfo(ABS_MT_TOUCH_MAJOR, &mRawPointerAxes.touchMajor);
-    getAbsoluteAxisInfo(ABS_MT_TOUCH_MINOR, &mRawPointerAxes.touchMinor);
-    getAbsoluteAxisInfo(ABS_MT_WIDTH_MAJOR, &mRawPointerAxes.toolMajor);
-    getAbsoluteAxisInfo(ABS_MT_WIDTH_MINOR, &mRawPointerAxes.toolMinor);
-    getAbsoluteAxisInfo(ABS_MT_ORIENTATION, &mRawPointerAxes.orientation);
-    getAbsoluteAxisInfo(ABS_MT_PRESSURE, &mRawPointerAxes.pressure);
-    getAbsoluteAxisInfo(ABS_MT_DISTANCE, &mRawPointerAxes.distance);
-    getAbsoluteAxisInfo(ABS_MT_TRACKING_ID, &mRawPointerAxes.trackingId);
-    getAbsoluteAxisInfo(ABS_MT_SLOT, &mRawPointerAxes.slot);
+    // TODO(b/351870641): Investigate why we are sometime not getting valid axis infos for the x/y
+    //   axes, even though those axes are required to be supported.
+    if (const auto xInfo = getAbsoluteAxisInfo(ABS_MT_POSITION_X); xInfo.has_value()) {
+        mRawPointerAxes.x = *xInfo;
+    }
+    if (const auto yInfo = getAbsoluteAxisInfo(ABS_MT_POSITION_Y); yInfo.has_value()) {
+        mRawPointerAxes.y = *yInfo;
+    }
+    mRawPointerAxes.touchMajor = getAbsoluteAxisInfo(ABS_MT_TOUCH_MAJOR);
+    mRawPointerAxes.touchMinor = getAbsoluteAxisInfo(ABS_MT_TOUCH_MINOR);
+    mRawPointerAxes.toolMajor = getAbsoluteAxisInfo(ABS_MT_WIDTH_MAJOR);
+    mRawPointerAxes.toolMinor = getAbsoluteAxisInfo(ABS_MT_WIDTH_MINOR);
+    mRawPointerAxes.orientation = getAbsoluteAxisInfo(ABS_MT_ORIENTATION);
+    mRawPointerAxes.pressure = getAbsoluteAxisInfo(ABS_MT_PRESSURE);
+    mRawPointerAxes.distance = getAbsoluteAxisInfo(ABS_MT_DISTANCE);
+    mRawPointerAxes.trackingId = getAbsoluteAxisInfo(ABS_MT_TRACKING_ID);
+    mRawPointerAxes.slot = getAbsoluteAxisInfo(ABS_MT_SLOT);
 
-    if (mRawPointerAxes.trackingId.valid && mRawPointerAxes.slot.valid &&
-        mRawPointerAxes.slot.minValue == 0 && mRawPointerAxes.slot.maxValue > 0) {
-        size_t slotCount = mRawPointerAxes.slot.maxValue + 1;
+    if (mRawPointerAxes.trackingId && mRawPointerAxes.slot && mRawPointerAxes.slot->minValue == 0 &&
+        mRawPointerAxes.slot->maxValue > 0) {
+        size_t slotCount = mRawPointerAxes.slot->maxValue + 1;
         if (slotCount > MAX_SLOTS) {
             ALOGW("MultiTouch Device %s reported %zu slots but the framework "
                   "only supports a maximum of %zu slots at this time.",
diff --git a/services/inputflinger/reader/mapper/SensorInputMapper.cpp b/services/inputflinger/reader/mapper/SensorInputMapper.cpp
index d7f2993..4233f78 100644
--- a/services/inputflinger/reader/mapper/SensorInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/SensorInputMapper.cpp
@@ -133,9 +133,8 @@
                           .test(InputDeviceClass::SENSOR))) {
                 continue;
             }
-            RawAbsoluteAxisInfo rawAxisInfo;
-            getAbsoluteAxisInfo(abs, &rawAxisInfo);
-            if (rawAxisInfo.valid) {
+            if (std::optional<RawAbsoluteAxisInfo> rawAxisInfo = getAbsoluteAxisInfo(abs);
+                rawAxisInfo) {
                 AxisInfo axisInfo;
                 // Axis doesn't need to be mapped, as sensor mapper doesn't generate any motion
                 // input events
@@ -146,7 +145,7 @@
                 if (ret.ok()) {
                     InputDeviceSensorType sensorType = (*ret).first;
                     int32_t sensorDataIndex = (*ret).second;
-                    const Axis& axis = createAxis(axisInfo, rawAxisInfo);
+                    const Axis& axis = createAxis(axisInfo, rawAxisInfo.value());
                     parseSensorConfiguration(sensorType, abs, sensorDataIndex, axis);
 
                     mAxes.insert({abs, axis});
diff --git a/services/inputflinger/reader/mapper/SingleTouchInputMapper.cpp b/services/inputflinger/reader/mapper/SingleTouchInputMapper.cpp
index 140bb0c..cef1837 100644
--- a/services/inputflinger/reader/mapper/SingleTouchInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/SingleTouchInputMapper.cpp
@@ -44,7 +44,7 @@
 
         bool isHovering = mTouchButtonAccumulator.getToolType() != ToolType::MOUSE &&
                 (mTouchButtonAccumulator.isHovering() ||
-                 (mRawPointerAxes.pressure.valid &&
+                 (mRawPointerAxes.pressure &&
                   mSingleTouchMotionAccumulator.getAbsolutePressure() <= 0));
         outState->rawPointerData.markIdBit(0, isHovering);
 
@@ -72,13 +72,19 @@
 void SingleTouchInputMapper::configureRawPointerAxes() {
     TouchInputMapper::configureRawPointerAxes();
 
-    getAbsoluteAxisInfo(ABS_X, &mRawPointerAxes.x);
-    getAbsoluteAxisInfo(ABS_Y, &mRawPointerAxes.y);
-    getAbsoluteAxisInfo(ABS_PRESSURE, &mRawPointerAxes.pressure);
-    getAbsoluteAxisInfo(ABS_TOOL_WIDTH, &mRawPointerAxes.toolMajor);
-    getAbsoluteAxisInfo(ABS_DISTANCE, &mRawPointerAxes.distance);
-    getAbsoluteAxisInfo(ABS_TILT_X, &mRawPointerAxes.tiltX);
-    getAbsoluteAxisInfo(ABS_TILT_Y, &mRawPointerAxes.tiltY);
+    // TODO(b/351870641): Investigate why we are sometime not getting valid axis infos for the x/y
+    //   axes, even though those axes are required to be supported.
+    if (const auto xInfo = getAbsoluteAxisInfo(ABS_X); xInfo.has_value()) {
+        mRawPointerAxes.x = *xInfo;
+    }
+    if (const auto yInfo = getAbsoluteAxisInfo(ABS_Y); yInfo.has_value()) {
+        mRawPointerAxes.y = *yInfo;
+    }
+    mRawPointerAxes.pressure = getAbsoluteAxisInfo(ABS_PRESSURE);
+    mRawPointerAxes.toolMajor = getAbsoluteAxisInfo(ABS_TOOL_WIDTH);
+    mRawPointerAxes.distance = getAbsoluteAxisInfo(ABS_DISTANCE);
+    mRawPointerAxes.tiltX = getAbsoluteAxisInfo(ABS_TILT_X);
+    mRawPointerAxes.tiltY = getAbsoluteAxisInfo(ABS_TILT_Y);
 }
 
 bool SingleTouchInputMapper::hasStylus() const {
diff --git a/services/inputflinger/reader/mapper/TouchInputMapper.cpp b/services/inputflinger/reader/mapper/TouchInputMapper.cpp
index 2d89208..984e217 100644
--- a/services/inputflinger/reader/mapper/TouchInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/TouchInputMapper.cpp
@@ -600,10 +600,10 @@
     const float diagonalSize = hypotf(mDisplayBounds.width, mDisplayBounds.height);
 
     // Size factors.
-    if (mRawPointerAxes.touchMajor.valid && mRawPointerAxes.touchMajor.maxValue != 0) {
-        mSizeScale = 1.0f / mRawPointerAxes.touchMajor.maxValue;
-    } else if (mRawPointerAxes.toolMajor.valid && mRawPointerAxes.toolMajor.maxValue != 0) {
-        mSizeScale = 1.0f / mRawPointerAxes.toolMajor.maxValue;
+    if (mRawPointerAxes.touchMajor && mRawPointerAxes.touchMajor->maxValue != 0) {
+        mSizeScale = 1.0f / mRawPointerAxes.touchMajor->maxValue;
+    } else if (mRawPointerAxes.toolMajor && mRawPointerAxes.toolMajor->maxValue != 0) {
+        mSizeScale = 1.0f / mRawPointerAxes.toolMajor->maxValue;
     } else {
         mSizeScale = 0.0f;
     }
@@ -618,18 +618,18 @@
             .resolution = 0,
     };
 
-    if (mRawPointerAxes.touchMajor.valid) {
-        mRawPointerAxes.touchMajor.resolution =
-                clampResolution("touchMajor", mRawPointerAxes.touchMajor.resolution);
-        mOrientedRanges.touchMajor->resolution = mRawPointerAxes.touchMajor.resolution;
+    if (mRawPointerAxes.touchMajor) {
+        mRawPointerAxes.touchMajor->resolution =
+                clampResolution("touchMajor", mRawPointerAxes.touchMajor->resolution);
+        mOrientedRanges.touchMajor->resolution = mRawPointerAxes.touchMajor->resolution;
     }
 
     mOrientedRanges.touchMinor = mOrientedRanges.touchMajor;
     mOrientedRanges.touchMinor->axis = AMOTION_EVENT_AXIS_TOUCH_MINOR;
-    if (mRawPointerAxes.touchMinor.valid) {
-        mRawPointerAxes.touchMinor.resolution =
-                clampResolution("touchMinor", mRawPointerAxes.touchMinor.resolution);
-        mOrientedRanges.touchMinor->resolution = mRawPointerAxes.touchMinor.resolution;
+    if (mRawPointerAxes.touchMinor) {
+        mRawPointerAxes.touchMinor->resolution =
+                clampResolution("touchMinor", mRawPointerAxes.touchMinor->resolution);
+        mOrientedRanges.touchMinor->resolution = mRawPointerAxes.touchMinor->resolution;
     }
 
     mOrientedRanges.toolMajor = InputDeviceInfo::MotionRange{
@@ -641,18 +641,18 @@
             .fuzz = 0,
             .resolution = 0,
     };
-    if (mRawPointerAxes.toolMajor.valid) {
-        mRawPointerAxes.toolMajor.resolution =
-                clampResolution("toolMajor", mRawPointerAxes.toolMajor.resolution);
-        mOrientedRanges.toolMajor->resolution = mRawPointerAxes.toolMajor.resolution;
+    if (mRawPointerAxes.toolMajor) {
+        mRawPointerAxes.toolMajor->resolution =
+                clampResolution("toolMajor", mRawPointerAxes.toolMajor->resolution);
+        mOrientedRanges.toolMajor->resolution = mRawPointerAxes.toolMajor->resolution;
     }
 
     mOrientedRanges.toolMinor = mOrientedRanges.toolMajor;
     mOrientedRanges.toolMinor->axis = AMOTION_EVENT_AXIS_TOOL_MINOR;
-    if (mRawPointerAxes.toolMinor.valid) {
-        mRawPointerAxes.toolMinor.resolution =
-                clampResolution("toolMinor", mRawPointerAxes.toolMinor.resolution);
-        mOrientedRanges.toolMinor->resolution = mRawPointerAxes.toolMinor.resolution;
+    if (mRawPointerAxes.toolMinor) {
+        mRawPointerAxes.toolMinor->resolution =
+                clampResolution("toolMinor", mRawPointerAxes.toolMinor->resolution);
+        mOrientedRanges.toolMinor->resolution = mRawPointerAxes.toolMinor->resolution;
     }
 
     if (mCalibration.sizeCalibration == Calibration::SizeCalibration::GEOMETRIC) {
@@ -704,9 +704,10 @@
         mCalibration.pressureCalibration == Calibration::PressureCalibration::AMPLITUDE) {
         if (mCalibration.pressureScale) {
             mPressureScale = *mCalibration.pressureScale;
-            pressureMax = mPressureScale * mRawPointerAxes.pressure.maxValue;
-        } else if (mRawPointerAxes.pressure.valid && mRawPointerAxes.pressure.maxValue != 0) {
-            mPressureScale = 1.0f / mRawPointerAxes.pressure.maxValue;
+            pressureMax = mPressureScale *
+                    (mRawPointerAxes.pressure ? mRawPointerAxes.pressure->maxValue : 0);
+        } else if (mRawPointerAxes.pressure && mRawPointerAxes.pressure->maxValue != 0) {
+            mPressureScale = 1.0f / mRawPointerAxes.pressure->maxValue;
         }
     }
 
@@ -725,18 +726,18 @@
     mTiltXScale = 0;
     mTiltYCenter = 0;
     mTiltYScale = 0;
-    mHaveTilt = mRawPointerAxes.tiltX.valid && mRawPointerAxes.tiltY.valid;
+    mHaveTilt = mRawPointerAxes.tiltX && mRawPointerAxes.tiltY;
     if (mHaveTilt) {
-        mTiltXCenter = avg(mRawPointerAxes.tiltX.minValue, mRawPointerAxes.tiltX.maxValue);
-        mTiltYCenter = avg(mRawPointerAxes.tiltY.minValue, mRawPointerAxes.tiltY.maxValue);
+        mTiltXCenter = avg(mRawPointerAxes.tiltX->minValue, mRawPointerAxes.tiltX->maxValue);
+        mTiltYCenter = avg(mRawPointerAxes.tiltY->minValue, mRawPointerAxes.tiltY->maxValue);
         mTiltXScale = M_PI / 180;
         mTiltYScale = M_PI / 180;
 
-        if (mRawPointerAxes.tiltX.resolution) {
-            mTiltXScale = 1.0 / mRawPointerAxes.tiltX.resolution;
+        if (mRawPointerAxes.tiltX->resolution) {
+            mTiltXScale = 1.0 / mRawPointerAxes.tiltX->resolution;
         }
-        if (mRawPointerAxes.tiltY.resolution) {
-            mTiltYScale = 1.0 / mRawPointerAxes.tiltY.resolution;
+        if (mRawPointerAxes.tiltY->resolution) {
+            mTiltYScale = 1.0 / mRawPointerAxes.tiltY->resolution;
         }
 
         mOrientedRanges.tilt = InputDeviceInfo::MotionRange{
@@ -766,11 +767,11 @@
     } else if (mCalibration.orientationCalibration != Calibration::OrientationCalibration::NONE) {
         if (mCalibration.orientationCalibration ==
             Calibration::OrientationCalibration::INTERPOLATED) {
-            if (mRawPointerAxes.orientation.valid) {
-                if (mRawPointerAxes.orientation.maxValue > 0) {
-                    mOrientationScale = M_PI_2 / mRawPointerAxes.orientation.maxValue;
-                } else if (mRawPointerAxes.orientation.minValue < 0) {
-                    mOrientationScale = -M_PI_2 / mRawPointerAxes.orientation.minValue;
+            if (mRawPointerAxes.orientation) {
+                if (mRawPointerAxes.orientation->maxValue > 0) {
+                    mOrientationScale = M_PI_2 / mRawPointerAxes.orientation->maxValue;
+                } else if (mRawPointerAxes.orientation->minValue < 0) {
+                    mOrientationScale = -M_PI_2 / mRawPointerAxes.orientation->minValue;
                 } else {
                     mOrientationScale = 0;
                 }
@@ -795,14 +796,14 @@
             mDistanceScale = mCalibration.distanceScale.value_or(1.0f);
         }
 
+        const bool hasDistance = mRawPointerAxes.distance.has_value();
         mOrientedRanges.distance = InputDeviceInfo::MotionRange{
-
                 .axis = AMOTION_EVENT_AXIS_DISTANCE,
                 .source = mSource,
-                .min = mRawPointerAxes.distance.minValue * mDistanceScale,
-                .max = mRawPointerAxes.distance.maxValue * mDistanceScale,
+                .min = hasDistance ? mRawPointerAxes.distance->minValue * mDistanceScale : 0,
+                .max = hasDistance ? mRawPointerAxes.distance->maxValue * mDistanceScale : 0,
                 .flat = 0,
-                .fuzz = mRawPointerAxes.distance.fuzz * mDistanceScale,
+                .fuzz = hasDistance ? mRawPointerAxes.distance->fuzz * mDistanceScale : 0,
                 .resolution = 0,
         };
     }
@@ -943,12 +944,7 @@
     const std::optional<DisplayViewport> newViewportOpt = findViewport();
 
     // Ensure the device is valid and can be used.
-    if (!mRawPointerAxes.x.valid || !mRawPointerAxes.y.valid) {
-        ALOGW("Touch device '%s' did not report support for X or Y axis!  "
-              "The device will be inoperable.",
-              getDeviceName().c_str());
-        mDeviceMode = DeviceMode::DISABLED;
-    } else if (!newViewportOpt) {
+    if (!newViewportOpt) {
         ALOGI("Touch device '%s' could not query the properties of its associated "
               "display.  The device will be inoperable until the display size "
               "becomes available.",
@@ -1237,7 +1233,7 @@
 
 void TouchInputMapper::resolveCalibration() {
     // Size
-    if (mRawPointerAxes.touchMajor.valid || mRawPointerAxes.toolMajor.valid) {
+    if (mRawPointerAxes.touchMajor || mRawPointerAxes.toolMajor) {
         if (mCalibration.sizeCalibration == Calibration::SizeCalibration::DEFAULT) {
             mCalibration.sizeCalibration = Calibration::SizeCalibration::GEOMETRIC;
         }
@@ -1246,7 +1242,7 @@
     }
 
     // Pressure
-    if (mRawPointerAxes.pressure.valid) {
+    if (mRawPointerAxes.pressure) {
         if (mCalibration.pressureCalibration == Calibration::PressureCalibration::DEFAULT) {
             mCalibration.pressureCalibration = Calibration::PressureCalibration::PHYSICAL;
         }
@@ -1255,7 +1251,7 @@
     }
 
     // Orientation
-    if (mRawPointerAxes.orientation.valid) {
+    if (mRawPointerAxes.orientation) {
         if (mCalibration.orientationCalibration == Calibration::OrientationCalibration::DEFAULT) {
             mCalibration.orientationCalibration = Calibration::OrientationCalibration::INTERPOLATED;
         }
@@ -1264,7 +1260,7 @@
     }
 
     // Distance
-    if (mRawPointerAxes.distance.valid) {
+    if (mRawPointerAxes.distance) {
         if (mCalibration.distanceCalibration == Calibration::DistanceCalibration::DEFAULT) {
             mCalibration.distanceCalibration = Calibration::DistanceCalibration::SCALED;
         }
@@ -2251,25 +2247,25 @@
             case Calibration::SizeCalibration::DIAMETER:
             case Calibration::SizeCalibration::BOX:
             case Calibration::SizeCalibration::AREA:
-                if (mRawPointerAxes.touchMajor.valid && mRawPointerAxes.toolMajor.valid) {
+                if (mRawPointerAxes.touchMajor && mRawPointerAxes.toolMajor) {
                     touchMajor = in.touchMajor;
-                    touchMinor = mRawPointerAxes.touchMinor.valid ? in.touchMinor : in.touchMajor;
+                    touchMinor = mRawPointerAxes.touchMinor ? in.touchMinor : in.touchMajor;
                     toolMajor = in.toolMajor;
-                    toolMinor = mRawPointerAxes.toolMinor.valid ? in.toolMinor : in.toolMajor;
-                    size = mRawPointerAxes.touchMinor.valid ? avg(in.touchMajor, in.touchMinor)
-                                                            : in.touchMajor;
-                } else if (mRawPointerAxes.touchMajor.valid) {
+                    toolMinor = mRawPointerAxes.toolMinor ? in.toolMinor : in.toolMajor;
+                    size = mRawPointerAxes.touchMinor ? avg(in.touchMajor, in.touchMinor)
+                                                      : in.touchMajor;
+                } else if (mRawPointerAxes.touchMajor) {
                     toolMajor = touchMajor = in.touchMajor;
                     toolMinor = touchMinor =
-                            mRawPointerAxes.touchMinor.valid ? in.touchMinor : in.touchMajor;
-                    size = mRawPointerAxes.touchMinor.valid ? avg(in.touchMajor, in.touchMinor)
-                                                            : in.touchMajor;
-                } else if (mRawPointerAxes.toolMajor.valid) {
+                            mRawPointerAxes.touchMinor ? in.touchMinor : in.touchMajor;
+                    size = mRawPointerAxes.touchMinor ? avg(in.touchMajor, in.touchMinor)
+                                                      : in.touchMajor;
+                } else if (mRawPointerAxes.toolMajor) {
                     touchMajor = toolMajor = in.toolMajor;
                     touchMinor = toolMinor =
-                            mRawPointerAxes.toolMinor.valid ? in.toolMinor : in.toolMajor;
-                    size = mRawPointerAxes.toolMinor.valid ? avg(in.toolMajor, in.toolMinor)
-                                                           : in.toolMajor;
+                            mRawPointerAxes.toolMinor ? in.toolMinor : in.toolMajor;
+                    size = mRawPointerAxes.toolMinor ? avg(in.toolMajor, in.toolMinor)
+                                                     : in.toolMajor;
                 } else {
                     ALOG_ASSERT(false,
                                 "No touch or tool axes.  "
diff --git a/services/inputflinger/reader/mapper/TouchInputMapper.h b/services/inputflinger/reader/mapper/TouchInputMapper.h
index a9a0190..87b72af 100644
--- a/services/inputflinger/reader/mapper/TouchInputMapper.h
+++ b/services/inputflinger/reader/mapper/TouchInputMapper.h
@@ -61,17 +61,17 @@
 struct RawPointerAxes {
     RawAbsoluteAxisInfo x{};
     RawAbsoluteAxisInfo y{};
-    RawAbsoluteAxisInfo pressure{};
-    RawAbsoluteAxisInfo touchMajor{};
-    RawAbsoluteAxisInfo touchMinor{};
-    RawAbsoluteAxisInfo toolMajor{};
-    RawAbsoluteAxisInfo toolMinor{};
-    RawAbsoluteAxisInfo orientation{};
-    RawAbsoluteAxisInfo distance{};
-    RawAbsoluteAxisInfo tiltX{};
-    RawAbsoluteAxisInfo tiltY{};
-    RawAbsoluteAxisInfo trackingId{};
-    RawAbsoluteAxisInfo slot{};
+    std::optional<RawAbsoluteAxisInfo> pressure{};
+    std::optional<RawAbsoluteAxisInfo> touchMajor{};
+    std::optional<RawAbsoluteAxisInfo> touchMinor{};
+    std::optional<RawAbsoluteAxisInfo> toolMajor{};
+    std::optional<RawAbsoluteAxisInfo> toolMinor{};
+    std::optional<RawAbsoluteAxisInfo> orientation{};
+    std::optional<RawAbsoluteAxisInfo> distance{};
+    std::optional<RawAbsoluteAxisInfo> tiltX{};
+    std::optional<RawAbsoluteAxisInfo> tiltY{};
+    std::optional<RawAbsoluteAxisInfo> trackingId{};
+    std::optional<RawAbsoluteAxisInfo> slot{};
 
     inline int32_t getRawWidth() const { return x.maxValue - x.minValue + 1; }
     inline int32_t getRawHeight() const { return y.maxValue - y.minValue + 1; }
diff --git a/services/inputflinger/reader/mapper/TouchpadInputMapper.cpp b/services/inputflinger/reader/mapper/TouchpadInputMapper.cpp
index 128f515..5c5fd3f 100644
--- a/services/inputflinger/reader/mapper/TouchpadInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/TouchpadInputMapper.cpp
@@ -240,14 +240,15 @@
         mGestureConverter(*getContext(), deviceContext, getDeviceId()),
         mCapturedEventConverter(*getContext(), deviceContext, mMotionAccumulator, getDeviceId()),
         mMetricsId(metricsIdFromInputDeviceIdentifier(deviceContext.getDeviceIdentifier())) {
-    RawAbsoluteAxisInfo slotAxisInfo;
-    deviceContext.getAbsoluteAxisInfo(ABS_MT_SLOT, &slotAxisInfo);
-    if (!slotAxisInfo.valid || slotAxisInfo.maxValue < 0) {
+    if (std::optional<RawAbsoluteAxisInfo> slotAxis =
+                deviceContext.getAbsoluteAxisInfo(ABS_MT_SLOT);
+        slotAxis && slotAxis->maxValue >= 0) {
+        mMotionAccumulator.configure(deviceContext, slotAxis->maxValue + 1, true);
+    } else {
         LOG(WARNING) << "Touchpad " << deviceContext.getName()
                      << " doesn't have a valid ABS_MT_SLOT axis, and probably won't work properly.";
-        slotAxisInfo.maxValue = 0;
+        mMotionAccumulator.configure(deviceContext, 1, true);
     }
-    mMotionAccumulator.configure(deviceContext, slotAxisInfo.maxValue + 1, true);
 
     mGestureInterpreter->Initialize(GESTURES_DEVCLASS_TOUCHPAD);
     mGestureInterpreter->SetHardwareProperties(createHardwareProperties(deviceContext));
diff --git a/services/inputflinger/reader/mapper/gestures/GestureConverter.cpp b/services/inputflinger/reader/mapper/gestures/GestureConverter.cpp
index e8e7376..9924d0d 100644
--- a/services/inputflinger/reader/mapper/gestures/GestureConverter.cpp
+++ b/services/inputflinger/reader/mapper/gestures/GestureConverter.cpp
@@ -66,10 +66,11 @@
                                    const InputDeviceContext& deviceContext, int32_t deviceId)
       : mDeviceId(deviceId),
         mReaderContext(readerContext),
-        mEnableFlingStop(input_flags::enable_touchpad_fling_stop()) {
-    deviceContext.getAbsoluteAxisInfo(ABS_MT_POSITION_X, &mXAxisInfo);
-    deviceContext.getAbsoluteAxisInfo(ABS_MT_POSITION_Y, &mYAxisInfo);
-}
+        mEnableFlingStop(input_flags::enable_touchpad_fling_stop()),
+        // We can safely assume that ABS_MT_POSITION_X and _Y axes will be available, as EventHub
+        // won't classify a device as a touchpad if they're not present.
+        mXAxisInfo(deviceContext.getAbsoluteAxisInfo(ABS_MT_POSITION_X).value()),
+        mYAxisInfo(deviceContext.getAbsoluteAxisInfo(ABS_MT_POSITION_Y).value()) {}
 
 std::string GestureConverter::dump() const {
     std::stringstream out;
diff --git a/services/inputflinger/reader/mapper/gestures/HardwareProperties.cpp b/services/inputflinger/reader/mapper/gestures/HardwareProperties.cpp
index 04655dc..d8a1f50 100644
--- a/services/inputflinger/reader/mapper/gestures/HardwareProperties.cpp
+++ b/services/inputflinger/reader/mapper/gestures/HardwareProperties.cpp
@@ -16,6 +16,8 @@
 
 #include "HardwareProperties.h"
 
+#include <optional>
+
 namespace android {
 
 namespace {
@@ -33,26 +35,34 @@
 
 HardwareProperties createHardwareProperties(const InputDeviceContext& context) {
     HardwareProperties props;
-    RawAbsoluteAxisInfo absMtPositionX;
-    context.getAbsoluteAxisInfo(ABS_MT_POSITION_X, &absMtPositionX);
+    // We can safely assume that ABS_MT_POSITION_X and _Y axes will be available, as EventHub won't
+    // classify a device as a touchpad if they're not present.
+    RawAbsoluteAxisInfo absMtPositionX = context.getAbsoluteAxisInfo(ABS_MT_POSITION_X).value();
     props.left = absMtPositionX.minValue;
     props.right = absMtPositionX.maxValue;
     props.res_x = absMtPositionX.resolution;
 
-    RawAbsoluteAxisInfo absMtPositionY;
-    context.getAbsoluteAxisInfo(ABS_MT_POSITION_Y, &absMtPositionY);
+    RawAbsoluteAxisInfo absMtPositionY = context.getAbsoluteAxisInfo(ABS_MT_POSITION_Y).value();
     props.top = absMtPositionY.minValue;
     props.bottom = absMtPositionY.maxValue;
     props.res_y = absMtPositionY.resolution;
 
-    RawAbsoluteAxisInfo absMtOrientation;
-    context.getAbsoluteAxisInfo(ABS_MT_ORIENTATION, &absMtOrientation);
-    props.orientation_minimum = absMtOrientation.minValue;
-    props.orientation_maximum = absMtOrientation.maxValue;
+    if (std::optional<RawAbsoluteAxisInfo> absMtOrientation =
+                context.getAbsoluteAxisInfo(ABS_MT_ORIENTATION);
+        absMtOrientation) {
+        props.orientation_minimum = absMtOrientation->minValue;
+        props.orientation_maximum = absMtOrientation->maxValue;
+    } else {
+        props.orientation_minimum = 0;
+        props.orientation_maximum = 0;
+    }
 
-    RawAbsoluteAxisInfo absMtSlot;
-    context.getAbsoluteAxisInfo(ABS_MT_SLOT, &absMtSlot);
-    props.max_finger_cnt = absMtSlot.maxValue - absMtSlot.minValue + 1;
+    if (std::optional<RawAbsoluteAxisInfo> absMtSlot = context.getAbsoluteAxisInfo(ABS_MT_SLOT);
+        absMtSlot) {
+        props.max_finger_cnt = absMtSlot->maxValue - absMtSlot->minValue + 1;
+    } else {
+        props.max_finger_cnt = 1;
+    }
     props.max_touch_cnt = getMaxTouchCount(context);
 
     // T5R2 ("Track 5, Report 2") is a feature of some old Synaptics touchpads that could track 5
@@ -71,9 +81,7 @@
     // are haptic.
     props.is_haptic_pad = false;
 
-    RawAbsoluteAxisInfo absMtPressure;
-    context.getAbsoluteAxisInfo(ABS_MT_PRESSURE, &absMtPressure);
-    props.reports_pressure = absMtPressure.valid;
+    props.reports_pressure = context.hasAbsoluteAxis(ABS_MT_PRESSURE);
     return props;
 }
 
diff --git a/services/inputflinger/tests/Android.bp b/services/inputflinger/tests/Android.bp
index ab50646..95283ba 100644
--- a/services/inputflinger/tests/Android.bp
+++ b/services/inputflinger/tests/Android.bp
@@ -70,6 +70,7 @@
         "InputTraceSession.cpp",
         "InputTracingTest.cpp",
         "InstrumentedInputReader.cpp",
+        "JoystickInputMapper_test.cpp",
         "LatencyTracker_test.cpp",
         "MultiTouchMotionAccumulator_test.cpp",
         "NotifyArgs_test.cpp",
diff --git a/services/inputflinger/tests/CursorInputMapper_test.cpp b/services/inputflinger/tests/CursorInputMapper_test.cpp
index 727237f..b27d02d 100644
--- a/services/inputflinger/tests/CursorInputMapper_test.cpp
+++ b/services/inputflinger/tests/CursorInputMapper_test.cpp
@@ -17,6 +17,7 @@
 #include "CursorInputMapper.h"
 
 #include <list>
+#include <optional>
 #include <string>
 #include <tuple>
 #include <variant>
@@ -93,38 +94,6 @@
     return v;
 }
 
-/**
- * A fake InputDeviceContext that allows the associated viewport to be specified for the mapper.
- *
- * This is currently necessary because InputMapperUnitTest doesn't register the mappers it creates
- * with the InputDevice object, meaning that InputDevice::isIgnored becomes true, and the input
- * device doesn't set its associated viewport when it's configured.
- *
- * TODO(b/319217713): work out a way to avoid this fake.
- */
-class ViewportFakingInputDeviceContext : public InputDeviceContext {
-public:
-    ViewportFakingInputDeviceContext(InputDevice& device, int32_t eventHubId,
-                                     std::optional<DisplayViewport> viewport)
-          : InputDeviceContext(device, eventHubId), mAssociatedViewport(viewport) {}
-
-    ViewportFakingInputDeviceContext(InputDevice& device, int32_t eventHubId,
-                                     ui::Rotation orientation)
-          : ViewportFakingInputDeviceContext(device, eventHubId,
-                                             createPrimaryViewport(orientation)) {}
-
-    std::optional<DisplayViewport> getAssociatedViewport() const override {
-        return mAssociatedViewport;
-    }
-
-    void setViewport(const std::optional<DisplayViewport>& viewport) {
-        mAssociatedViewport = viewport;
-    }
-
-private:
-    std::optional<DisplayViewport> mAssociatedViewport;
-};
-
 } // namespace
 
 namespace input_flags = com::android::input::flags;
@@ -163,7 +132,6 @@
     }
 
     void createMapper() {
-        createDevice();
         mMapper = createInputMapper<CursorInputMapper>(*mDeviceContext, mReaderConfiguration);
     }
 
@@ -542,9 +510,9 @@
     // need to be rotated.
     mPropertyMap.addProperty("cursor.mode", "navigation");
     mPropertyMap.addProperty("cursor.orientationAware", "1");
-    createDevice();
-    ViewportFakingInputDeviceContext deviceContext(*mDevice, EVENTHUB_ID, ui::Rotation::Rotation90);
-    mMapper = createInputMapper<CursorInputMapper>(deviceContext, mReaderConfiguration);
+    EXPECT_CALL((*mDevice), getAssociatedViewport)
+            .WillRepeatedly(Return(createPrimaryViewport(ui::Rotation::Rotation90)));
+    mMapper = createInputMapper<CursorInputMapper>(*mDeviceContext, mReaderConfiguration);
 
     ASSERT_NO_FATAL_FAILURE(testMotionRotation( 0,  1,  0,  1));
     ASSERT_NO_FATAL_FAILURE(testMotionRotation( 1,  1,  1,  1));
@@ -560,9 +528,9 @@
     // Since InputReader works in the un-rotated coordinate space, only devices that are not
     // orientation-aware are affected by display rotation.
     mPropertyMap.addProperty("cursor.mode", "navigation");
-    createDevice();
-    ViewportFakingInputDeviceContext deviceContext(*mDevice, EVENTHUB_ID, ui::Rotation::Rotation0);
-    mMapper = createInputMapper<CursorInputMapper>(deviceContext, mReaderConfiguration);
+    EXPECT_CALL((*mDevice), getAssociatedViewport)
+            .WillRepeatedly(Return(createPrimaryViewport(ui::Rotation::Rotation0)));
+    mMapper = createInputMapper<CursorInputMapper>(*mDeviceContext, mReaderConfiguration);
 
     ASSERT_NO_FATAL_FAILURE(testMotionRotation( 0,  1,  0,  1));
     ASSERT_NO_FATAL_FAILURE(testMotionRotation( 1,  1,  1,  1));
@@ -573,7 +541,8 @@
     ASSERT_NO_FATAL_FAILURE(testMotionRotation(-1,  0, -1,  0));
     ASSERT_NO_FATAL_FAILURE(testMotionRotation(-1,  1, -1,  1));
 
-    deviceContext.setViewport(createPrimaryViewport(ui::Rotation::Rotation90));
+    EXPECT_CALL((*mDevice), getAssociatedViewport)
+            .WillRepeatedly(Return(createPrimaryViewport(ui::Rotation::Rotation90)));
     std::list<NotifyArgs> args =
             mMapper->reconfigure(ARBITRARY_TIME, mReaderConfiguration,
                                  InputReaderConfiguration::Change::DISPLAY_INFO);
@@ -586,7 +555,8 @@
     ASSERT_NO_FATAL_FAILURE(testMotionRotation(-1,  0,  0, -1));
     ASSERT_NO_FATAL_FAILURE(testMotionRotation(-1,  1, -1, -1));
 
-    deviceContext.setViewport(createPrimaryViewport(ui::Rotation::Rotation180));
+    EXPECT_CALL((*mDevice), getAssociatedViewport)
+            .WillRepeatedly(Return(createPrimaryViewport(ui::Rotation::Rotation180)));
     args = mMapper->reconfigure(ARBITRARY_TIME, mReaderConfiguration,
                                 InputReaderConfiguration::Change::DISPLAY_INFO);
     ASSERT_NO_FATAL_FAILURE(testMotionRotation( 0,  1,  0, -1));
@@ -598,7 +568,8 @@
     ASSERT_NO_FATAL_FAILURE(testMotionRotation(-1,  0,  1,  0));
     ASSERT_NO_FATAL_FAILURE(testMotionRotation(-1,  1,  1, -1));
 
-    deviceContext.setViewport(createPrimaryViewport(ui::Rotation::Rotation270));
+    EXPECT_CALL((*mDevice), getAssociatedViewport)
+            .WillRepeatedly(Return(createPrimaryViewport(ui::Rotation::Rotation270)));
     args = mMapper->reconfigure(ARBITRARY_TIME, mReaderConfiguration,
                                 InputReaderConfiguration::Change::DISPLAY_INFO);
     ASSERT_NO_FATAL_FAILURE(testMotionRotation( 0,  1,  1,  0));
@@ -652,9 +623,8 @@
     mReaderConfiguration.setDisplayViewports({primaryViewport, secondaryViewport});
     // Set up the secondary display as the display on which the pointer should be shown.
     // The InputDevice is not associated with any display.
-    createDevice();
-    ViewportFakingInputDeviceContext deviceContext(*mDevice, EVENTHUB_ID, secondaryViewport);
-    mMapper = createInputMapper<CursorInputMapper>(deviceContext, mReaderConfiguration);
+    EXPECT_CALL((*mDevice), getAssociatedViewport).WillRepeatedly(Return(secondaryViewport));
+    mMapper = createInputMapper<CursorInputMapper>(*mDeviceContext, mReaderConfiguration);
 
     std::list<NotifyArgs> args;
     // Ensure input events are generated for the secondary display.
@@ -673,10 +643,9 @@
     DisplayViewport secondaryViewport = createSecondaryViewport();
     mReaderConfiguration.setDisplayViewports({primaryViewport, secondaryViewport});
     // Set up the primary display as the display on which the pointer should be shown.
-    createDevice();
     // Associate the InputDevice with the secondary display.
-    ViewportFakingInputDeviceContext deviceContext(*mDevice, EVENTHUB_ID, secondaryViewport);
-    mMapper = createInputMapper<CursorInputMapper>(deviceContext, mReaderConfiguration);
+    EXPECT_CALL((*mDevice), getAssociatedViewport).WillRepeatedly(Return(secondaryViewport));
+    mMapper = createInputMapper<CursorInputMapper>(*mDeviceContext, mReaderConfiguration);
 
     // With PointerChoreographer enabled, there could be a PointerController for the associated
     // display even if it is different from the pointer display. So the mapper should generate an
@@ -1032,9 +1001,8 @@
     mPropertyMap.addProperty("cursor.mode", "pointer");
     DisplayViewport primaryViewport = createPrimaryViewport(ui::Rotation::Rotation0);
     mReaderConfiguration.setDisplayViewports({primaryViewport});
-    createDevice();
-    ViewportFakingInputDeviceContext deviceContext(*mDevice, EVENTHUB_ID, primaryViewport);
-    mMapper = createInputMapper<CursorInputMapper>(deviceContext, mReaderConfiguration);
+    EXPECT_CALL((*mDevice), getAssociatedViewport).WillRepeatedly(Return(primaryViewport));
+    mMapper = createInputMapper<CursorInputMapper>(*mDeviceContext, mReaderConfiguration);
 
     std::list<NotifyArgs> args;
 
@@ -1070,12 +1038,10 @@
     mReaderConfiguration.setDisplayViewports({primaryViewport});
     // Disable acceleration for the display.
     mReaderConfiguration.displaysWithMousePointerAccelerationDisabled.emplace(DISPLAY_ID);
-    createDevice();
 
     // Don't associate the device with the display yet.
-    ViewportFakingInputDeviceContext deviceContext(*mDevice, EVENTHUB_ID,
-                                                   /*viewport=*/std::nullopt);
-    mMapper = createInputMapper<CursorInputMapper>(deviceContext, mReaderConfiguration);
+    EXPECT_CALL((*mDevice), getAssociatedViewport).WillRepeatedly(Return(std::nullopt));
+    mMapper = createInputMapper<CursorInputMapper>(*mDeviceContext, mReaderConfiguration);
 
     std::list<NotifyArgs> args;
 
@@ -1089,7 +1055,7 @@
     ASSERT_GT(coords.getAxisValue(AMOTION_EVENT_AXIS_RELATIVE_Y), 20.f);
 
     // Now associate the device with the display, and verify that acceleration is disabled.
-    deviceContext.setViewport(primaryViewport);
+    EXPECT_CALL((*mDevice), getAssociatedViewport).WillRepeatedly(Return(primaryViewport));
     args += mMapper->reconfigure(ARBITRARY_TIME, mReaderConfiguration,
                                  InputReaderConfiguration::Change::DISPLAY_INFO);
     args.clear();
diff --git a/services/inputflinger/tests/FakeEventHub.cpp b/services/inputflinger/tests/FakeEventHub.cpp
index 99db999..31fbf20 100644
--- a/services/inputflinger/tests/FakeEventHub.cpp
+++ b/services/inputflinger/tests/FakeEventHub.cpp
@@ -101,7 +101,6 @@
     Device* device = getDevice(deviceId);
 
     RawAbsoluteAxisInfo info;
-    info.valid = true;
     info.minValue = minValue;
     info.maxValue = maxValue;
     info.flat = flat;
diff --git a/services/inputflinger/tests/HardwareProperties_test.cpp b/services/inputflinger/tests/HardwareProperties_test.cpp
index 643fab6..e87f822 100644
--- a/services/inputflinger/tests/HardwareProperties_test.cpp
+++ b/services/inputflinger/tests/HardwareProperties_test.cpp
@@ -50,7 +50,6 @@
     void setupValidAxis(int axis, int32_t min, int32_t max, int32_t resolution) {
         EXPECT_CALL(mMockEventHub, getAbsoluteAxisInfo(EVENTHUB_ID, axis))
                 .WillRepeatedly(Return(std::optional<RawAbsoluteAxisInfo>{{
-                        .valid = true,
                         .minValue = min,
                         .maxValue = max,
                         .flat = 0,
diff --git a/services/inputflinger/tests/InputDispatcher_test.cpp b/services/inputflinger/tests/InputDispatcher_test.cpp
index c70afd6..e505850 100644
--- a/services/inputflinger/tests/InputDispatcher_test.cpp
+++ b/services/inputflinger/tests/InputDispatcher_test.cpp
@@ -4168,6 +4168,7 @@
  * the event routing because the first window prevents splitting.
  */
 TEST_F(InputDispatcherTest, SplitTouchesSendCorrectActionDownTimeForNewWindow) {
+    SCOPED_FLAG_OVERRIDE(split_all_touches, false);
     std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
     sp<FakeWindowHandle> window1 =
             sp<FakeWindowHandle>::make(application, mDispatcher, "Window1", DISPLAY_ID);
@@ -4225,6 +4226,7 @@
  * (and the touch occurred outside of the bounds of window1).
  */
 TEST_F(InputDispatcherTest, SplitTouchesDropsEventForNonSplittableSecondWindow) {
+    SCOPED_FLAG_OVERRIDE(split_all_touches, false);
     std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
     sp<FakeWindowHandle> window1 =
             sp<FakeWindowHandle>::make(application, mDispatcher, "Window1", DISPLAY_ID);
@@ -4600,6 +4602,7 @@
  * This test attempts to reproduce a crash in the dispatcher.
  */
 TEST_P(SpyThatPreventsSplittingWithApplicationFixture, SpyThatPreventsSplittingWithApplication) {
+    SCOPED_FLAG_OVERRIDE(split_all_touches, false);
     std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
 
     sp<FakeWindowHandle> spyWindow = sp<FakeWindowHandle>::make(application, mDispatcher, "Spy",
@@ -5583,6 +5586,7 @@
 }
 
 TEST_F(InputDispatcherTest, NonSplitTouchableWindowReceivesMultiTouch) {
+    SCOPED_FLAG_OVERRIDE(split_all_touches, false);
     std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
     sp<FakeWindowHandle> window =
             sp<FakeWindowHandle>::make(application, mDispatcher, "Fake Window",
@@ -5628,6 +5632,7 @@
  * "incomplete" gestures.
  */
 TEST_F(InputDispatcherTest, SplittableAndNonSplittableWindows) {
+    SCOPED_FLAG_OVERRIDE(split_all_touches, false);
     std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
     sp<FakeWindowHandle> leftWindow =
             sp<FakeWindowHandle>::make(application, mDispatcher, "Left splittable Window",
@@ -5665,6 +5670,7 @@
  * This test attempts to reproduce a crash.
  */
 TEST_F(InputDispatcherTest, MultiDeviceTwoWindowsPreventSplitting) {
+    SCOPED_FLAG_OVERRIDE(split_all_touches, false);
     std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
     sp<FakeWindowHandle> leftWindow =
             sp<FakeWindowHandle>::make(application, mDispatcher, "Left window (prevent splitting)",
@@ -8411,6 +8417,7 @@
  * the previous window should receive this event and not be dropped.
  */
 TEST_F(InputDispatcherMultiDeviceTest, SingleDevicePointerDownEventRetentionWithoutWindowTarget) {
+    SCOPED_FLAG_OVERRIDE(split_all_touches, false);
     std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
     sp<FakeWindowHandle> window = sp<FakeWindowHandle>::make(application, mDispatcher, "Window",
                                                              ui::LogicalDisplayId::DEFAULT);
diff --git a/services/inputflinger/tests/InputMapperTest.cpp b/services/inputflinger/tests/InputMapperTest.cpp
index 7e96d5f..7dff144 100644
--- a/services/inputflinger/tests/InputMapperTest.cpp
+++ b/services/inputflinger/tests/InputMapperTest.cpp
@@ -26,7 +26,9 @@
 namespace android {
 
 using testing::_;
+using testing::NiceMock;
 using testing::Return;
+using testing::ReturnRef;
 
 void InputMapperUnitTest::SetUpWithBus(int bus) {
     mFakePolicy = sp<FakeInputReaderPolicy>::make();
@@ -43,23 +45,17 @@
     EXPECT_CALL(mMockEventHub, getConfiguration(EVENTHUB_ID)).WillRepeatedly([&](int32_t) {
         return mPropertyMap;
     });
-}
 
-void InputMapperUnitTest::createDevice() {
-    mDevice = std::make_unique<InputDevice>(&mMockInputReaderContext, DEVICE_ID,
-                                            /*generation=*/2, mIdentifier);
-    mDevice->addEmptyEventHubDevice(EVENTHUB_ID);
+    mDevice = std::make_unique<NiceMock<MockInputDevice>>(&mMockInputReaderContext, DEVICE_ID,
+                                                          /*generation=*/2, mIdentifier);
+    ON_CALL((*mDevice), getConfiguration).WillByDefault(ReturnRef(mPropertyMap));
     mDeviceContext = std::make_unique<InputDeviceContext>(*mDevice, EVENTHUB_ID);
-    std::list<NotifyArgs> args =
-            mDevice->configure(systemTime(), mReaderConfiguration, /*changes=*/{});
-    ASSERT_THAT(args, testing::ElementsAre(testing::VariantWith<NotifyDeviceResetArgs>(_)));
 }
 
 void InputMapperUnitTest::setupAxis(int axis, bool valid, int32_t min, int32_t max,
                                     int32_t resolution) {
     EXPECT_CALL(mMockEventHub, getAbsoluteAxisInfo(EVENTHUB_ID, axis))
             .WillRepeatedly(Return(valid ? std::optional<RawAbsoluteAxisInfo>{{
-                                                   .valid = true,
                                                    .minValue = min,
                                                    .maxValue = max,
                                                    .flat = 0,
diff --git a/services/inputflinger/tests/InputMapperTest.h b/services/inputflinger/tests/InputMapperTest.h
index 88057dc..fc27e4f 100644
--- a/services/inputflinger/tests/InputMapperTest.h
+++ b/services/inputflinger/tests/InputMapperTest.h
@@ -43,13 +43,6 @@
     virtual void SetUp() override { SetUpWithBus(0); }
     virtual void SetUpWithBus(int bus);
 
-    /**
-     * Initializes mDevice and mDeviceContext. When this happens, mDevice takes a copy of
-     * mPropertyMap, so tests that need to set configuration properties should do so before calling
-     * this. Others will most likely want to call it in their SetUp method.
-     */
-    void createDevice();
-
     void setupAxis(int axis, bool valid, int32_t min, int32_t max, int32_t resolution);
 
     void expectScanCodes(bool present, std::set<int> scanCodes);
@@ -67,7 +60,7 @@
     MockEventHubInterface mMockEventHub;
     sp<FakeInputReaderPolicy> mFakePolicy;
     MockInputReaderContext mMockInputReaderContext;
-    std::unique_ptr<InputDevice> mDevice;
+    std::unique_ptr<MockInputDevice> mDevice;
 
     std::unique_ptr<InputDeviceContext> mDeviceContext;
     InputReaderConfiguration mReaderConfiguration;
@@ -123,11 +116,12 @@
     T& constructAndAddMapper(Args... args) {
         // ensure a device entry exists for this eventHubId
         mDevice->addEmptyEventHubDevice(EVENTHUB_ID);
-        // configure the empty device
-        configureDevice(/*changes=*/{});
 
-        return mDevice->constructAndAddMapper<T>(EVENTHUB_ID, mFakePolicy->getReaderConfiguration(),
-                                                 args...);
+        auto& mapper =
+                mDevice->constructAndAddMapper<T>(EVENTHUB_ID,
+                                                  mFakePolicy->getReaderConfiguration(), args...);
+        configureDevice(/*changes=*/{});
+        return mapper;
     }
 
     void setDisplayInfoAndReconfigure(ui::LogicalDisplayId displayId, int32_t width, int32_t height,
diff --git a/services/inputflinger/tests/InputReader_test.cpp b/services/inputflinger/tests/InputReader_test.cpp
index 267c400..48fd717 100644
--- a/services/inputflinger/tests/InputReader_test.cpp
+++ b/services/inputflinger/tests/InputReader_test.cpp
@@ -24,7 +24,6 @@
 #include <InputReader.h>
 #include <InputReaderBase.h>
 #include <InputReaderFactory.h>
-#include <JoystickInputMapper.h>
 #include <KeyboardInputMapper.h>
 #include <MultiTouchInputMapper.h>
 #include <NotifyArgsBuilders.h>
@@ -4040,6 +4039,51 @@
     ASSERT_EQ(AKEY_EVENT_FLAG_FROM_SYSTEM | AKEY_EVENT_FLAG_KEEP_TOUCH_MODE, args.flags);
 }
 
+/**
+ * When there is more than one KeyboardInputMapper for an InputDevice, each mapper should produce
+ * events that use the shared keyboard source across all mappers. This is to ensure that each
+ * input device generates key events in a consistent manner, regardless of which mapper produces
+ * the event.
+ */
+TEST_F(KeyboardInputMapperTest, UsesSharedKeyboardSource) {
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_HOME, 0, AKEYCODE_HOME, POLICY_FLAG_WAKE);
+
+    // Add a mapper with SOURCE_KEYBOARD
+    KeyboardInputMapper& keyboardMapper =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
+
+    process(keyboardMapper, ARBITRARY_TIME, 0, EV_KEY, KEY_HOME, 1);
+    ASSERT_NO_FATAL_FAILURE(
+            mFakeListener->assertNotifyKeyWasCalled(WithSource(AINPUT_SOURCE_KEYBOARD)));
+    process(keyboardMapper, ARBITRARY_TIME, 0, EV_KEY, KEY_HOME, 0);
+    ASSERT_NO_FATAL_FAILURE(
+            mFakeListener->assertNotifyKeyWasCalled(WithSource(AINPUT_SOURCE_KEYBOARD)));
+
+    // Add a mapper with SOURCE_DPAD
+    KeyboardInputMapper& dpadMapper =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_DPAD);
+    for (auto* mapper : {&keyboardMapper, &dpadMapper}) {
+        process(*mapper, ARBITRARY_TIME, 0, EV_KEY, KEY_HOME, 1);
+        ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(
+                WithSource(AINPUT_SOURCE_KEYBOARD | AINPUT_SOURCE_DPAD)));
+        process(*mapper, ARBITRARY_TIME, 0, EV_KEY, KEY_HOME, 0);
+        ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(
+                WithSource(AINPUT_SOURCE_KEYBOARD | AINPUT_SOURCE_DPAD)));
+    }
+
+    // Add a mapper with SOURCE_GAMEPAD
+    KeyboardInputMapper& gamepadMapper =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_GAMEPAD);
+    for (auto* mapper : {&keyboardMapper, &dpadMapper, &gamepadMapper}) {
+        process(*mapper, ARBITRARY_TIME, 0, EV_KEY, KEY_HOME, 1);
+        ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(
+                WithSource(AINPUT_SOURCE_KEYBOARD | AINPUT_SOURCE_DPAD | AINPUT_SOURCE_GAMEPAD)));
+        process(*mapper, ARBITRARY_TIME, 0, EV_KEY, KEY_HOME, 0);
+        ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(
+                WithSource(AINPUT_SOURCE_KEYBOARD | AINPUT_SOURCE_DPAD | AINPUT_SOURCE_GAMEPAD)));
+    }
+}
+
 // --- KeyboardInputMapperTest_ExternalAlphabeticDevice ---
 
 class KeyboardInputMapperTest_ExternalAlphabeticDevice : public InputMapperTest {
@@ -10018,67 +10062,6 @@
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasNotCalled());
 }
 
-// --- JoystickInputMapperTest ---
-
-class JoystickInputMapperTest : public InputMapperTest {
-protected:
-    static const int32_t RAW_X_MIN;
-    static const int32_t RAW_X_MAX;
-    static const int32_t RAW_Y_MIN;
-    static const int32_t RAW_Y_MAX;
-
-    void SetUp() override {
-        InputMapperTest::SetUp(InputDeviceClass::JOYSTICK | InputDeviceClass::EXTERNAL);
-    }
-    void prepareAxes() {
-        mFakeEventHub->addAbsoluteAxis(EVENTHUB_ID, ABS_X, RAW_X_MIN, RAW_X_MAX, 0, 0);
-        mFakeEventHub->addAbsoluteAxis(EVENTHUB_ID, ABS_Y, RAW_Y_MIN, RAW_Y_MAX, 0, 0);
-    }
-
-    void processAxis(JoystickInputMapper& mapper, int32_t axis, int32_t value) {
-        process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, axis, value);
-    }
-
-    void processSync(JoystickInputMapper& mapper) {
-        process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
-    }
-
-    void prepareVirtualDisplay(ui::Rotation orientation) {
-        setDisplayInfoAndReconfigure(VIRTUAL_DISPLAY_ID, VIRTUAL_DISPLAY_WIDTH,
-                                     VIRTUAL_DISPLAY_HEIGHT, orientation, VIRTUAL_DISPLAY_UNIQUE_ID,
-                                     NO_PORT, ViewportType::VIRTUAL);
-    }
-};
-
-const int32_t JoystickInputMapperTest::RAW_X_MIN = -32767;
-const int32_t JoystickInputMapperTest::RAW_X_MAX = 32767;
-const int32_t JoystickInputMapperTest::RAW_Y_MIN = -32767;
-const int32_t JoystickInputMapperTest::RAW_Y_MAX = 32767;
-
-TEST_F(JoystickInputMapperTest, Configure_AssignsDisplayUniqueId) {
-    prepareAxes();
-    JoystickInputMapper& mapper = constructAndAddMapper<JoystickInputMapper>();
-
-    mFakePolicy->addInputUniqueIdAssociation(DEVICE_LOCATION, VIRTUAL_DISPLAY_UNIQUE_ID);
-
-    prepareVirtualDisplay(ui::ROTATION_0);
-
-    // Send an axis event
-    processAxis(mapper, ABS_X, 100);
-    processSync(mapper);
-
-    NotifyMotionArgs args;
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&args));
-    ASSERT_EQ(VIRTUAL_DISPLAY_ID, args.displayId);
-
-    // Send another axis event
-    processAxis(mapper, ABS_Y, 100);
-    processSync(mapper);
-
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&args));
-    ASSERT_EQ(VIRTUAL_DISPLAY_ID, args.displayId);
-}
-
 // --- PeripheralControllerTest ---
 
 class PeripheralControllerTest : public testing::Test {
diff --git a/services/inputflinger/tests/InterfaceMocks.h b/services/inputflinger/tests/InterfaceMocks.h
index 48e0b4f..5a3d79d 100644
--- a/services/inputflinger/tests/InterfaceMocks.h
+++ b/services/inputflinger/tests/InterfaceMocks.h
@@ -26,6 +26,7 @@
 #include <vector>
 
 #include <EventHub.h>
+#include <InputDevice.h>
 #include <InputReaderBase.h>
 #include <InputReaderContext.h>
 #include <NotifyArgs.h>
@@ -59,7 +60,7 @@
     MOCK_METHOD(void, requestTimeoutAtTime, (nsecs_t when), (override));
     int32_t bumpGeneration() override { return ++mGeneration; }
 
-    MOCK_METHOD(void, getExternalStylusDevices, (std::vector<InputDeviceInfo> & outDevices),
+    MOCK_METHOD(void, getExternalStylusDevices, (std::vector<InputDeviceInfo>& outDevices),
                 (override));
     MOCK_METHOD(std::list<NotifyArgs>, dispatchExternalStylusState, (const StylusState& outState),
                 (override));
@@ -172,7 +173,7 @@
     MOCK_METHOD(void, requestReopenDevices, (), (override));
     MOCK_METHOD(void, wake, (), (override));
 
-    MOCK_METHOD(void, dump, (std::string & dump), (const, override));
+    MOCK_METHOD(void, dump, (std::string& dump), (const, override));
     MOCK_METHOD(void, monitor, (), (const, override));
     MOCK_METHOD(bool, isDeviceEnabled, (int32_t deviceId), (const, override));
     MOCK_METHOD(status_t, enableDevice, (int32_t deviceId), (override));
@@ -190,4 +191,76 @@
     MOCK_METHOD(void, notifyMouseCursorFadedOnTyping, (), (override));
 };
 
+class MockInputDevice : public InputDevice {
+public:
+    MockInputDevice(InputReaderContext* context, int32_t id, int32_t generation,
+                    const InputDeviceIdentifier& identifier)
+          : InputDevice(context, id, generation, identifier) {}
+
+    MOCK_METHOD(uint32_t, getSources, (), (const, override));
+    MOCK_METHOD(std::optional<DisplayViewport>, getAssociatedViewport, (), (const));
+    MOCK_METHOD(bool, isEnabled, (), ());
+
+    MOCK_METHOD(void, dump, (std::string& dump, const std::string& eventHubDevStr), ());
+    MOCK_METHOD(void, addEmptyEventHubDevice, (int32_t eventHubId), ());
+    MOCK_METHOD(std::list<NotifyArgs>, addEventHubDevice,
+                (nsecs_t when, int32_t eventHubId, const InputReaderConfiguration& readerConfig),
+                ());
+    MOCK_METHOD(void, removeEventHubDevice, (int32_t eventHubId), ());
+    MOCK_METHOD(std::list<NotifyArgs>, configure,
+                (nsecs_t when, const InputReaderConfiguration& readerConfig,
+                 ConfigurationChanges changes),
+                ());
+    MOCK_METHOD(std::list<NotifyArgs>, reset, (nsecs_t when), ());
+    MOCK_METHOD(std::list<NotifyArgs>, process, (const RawEvent* rawEvents, size_t count), ());
+    MOCK_METHOD(std::list<NotifyArgs>, timeoutExpired, (nsecs_t when), ());
+    MOCK_METHOD(std::list<NotifyArgs>, updateExternalStylusState, (const StylusState& state), ());
+
+    MOCK_METHOD(InputDeviceInfo, getDeviceInfo, (), ());
+    MOCK_METHOD(int32_t, getKeyCodeState, (uint32_t sourceMask, int32_t keyCode), ());
+    MOCK_METHOD(int32_t, getScanCodeState, (uint32_t sourceMask, int32_t scanCode), ());
+    MOCK_METHOD(int32_t, getSwitchState, (uint32_t sourceMask, int32_t switchCode), ());
+    MOCK_METHOD(int32_t, getKeyCodeForKeyLocation, (int32_t locationKeyCode), (const));
+    MOCK_METHOD(bool, markSupportedKeyCodes,
+                (uint32_t sourceMask, const std::vector<int32_t>& keyCodes, uint8_t* outFlags), ());
+    MOCK_METHOD(std::list<NotifyArgs>, vibrate,
+                (const VibrationSequence& sequence, ssize_t repeat, int32_t token), ());
+    MOCK_METHOD(std::list<NotifyArgs>, cancelVibrate, (int32_t token), ());
+    MOCK_METHOD(bool, isVibrating, (), ());
+    MOCK_METHOD(std::vector<int32_t>, getVibratorIds, (), ());
+    MOCK_METHOD(std::list<NotifyArgs>, cancelTouch, (nsecs_t when, nsecs_t readTime), ());
+    MOCK_METHOD(bool, enableSensor,
+                (InputDeviceSensorType sensorType, std::chrono::microseconds samplingPeriod,
+                 std::chrono::microseconds maxBatchReportLatency),
+                ());
+
+    MOCK_METHOD(void, disableSensor, (InputDeviceSensorType sensorType), ());
+    MOCK_METHOD(void, flushSensor, (InputDeviceSensorType sensorType), ());
+
+    MOCK_METHOD(std::optional<int32_t>, getBatteryEventHubId, (), (const));
+
+    MOCK_METHOD(bool, setLightColor, (int32_t lightId, int32_t color), ());
+    MOCK_METHOD(bool, setLightPlayerId, (int32_t lightId, int32_t playerId), ());
+    MOCK_METHOD(std::optional<int32_t>, getLightColor, (int32_t lightId), ());
+    MOCK_METHOD(std::optional<int32_t>, getLightPlayerId, (int32_t lightId), ());
+
+    MOCK_METHOD(int32_t, getMetaState, (), ());
+    MOCK_METHOD(void, updateMetaState, (int32_t keyCode), ());
+
+    MOCK_METHOD(void, addKeyRemapping, (int32_t fromKeyCode, int32_t toKeyCode), ());
+
+    MOCK_METHOD(void, setKeyboardType, (KeyboardType keyboardType), ());
+
+    MOCK_METHOD(void, bumpGeneration, (), ());
+
+    MOCK_METHOD(const PropertyMap&, getConfiguration, (), (const, override));
+
+    MOCK_METHOD(NotifyDeviceResetArgs, notifyReset, (nsecs_t when), ());
+
+    MOCK_METHOD(std::optional<ui::LogicalDisplayId>, getAssociatedDisplayId, (), ());
+
+    MOCK_METHOD(void, updateLedState, (bool reset), ());
+
+    MOCK_METHOD(size_t, getMapperCount, (), ());
+};
 } // namespace android
diff --git a/services/inputflinger/tests/JoystickInputMapper_test.cpp b/services/inputflinger/tests/JoystickInputMapper_test.cpp
new file mode 100644
index 0000000..adebd72
--- /dev/null
+++ b/services/inputflinger/tests/JoystickInputMapper_test.cpp
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "JoystickInputMapper.h"
+
+#include <list>
+#include <optional>
+
+#include <EventHub.h>
+#include <NotifyArgs.h>
+#include <ftl/flags.h>
+#include <gmock/gmock.h>
+#include <gtest/gtest.h>
+#include <input/DisplayViewport.h>
+#include <linux/input-event-codes.h>
+#include <ui/LogicalDisplayId.h>
+
+#include "InputMapperTest.h"
+#include "TestConstants.h"
+#include "TestEventMatchers.h"
+
+namespace android {
+
+using namespace ftl::flag_operators;
+using testing::ElementsAre;
+using testing::IsEmpty;
+using testing::Return;
+using testing::VariantWith;
+
+class JoystickInputMapperTest : public InputMapperUnitTest {
+protected:
+    void SetUp() override {
+        InputMapperUnitTest::SetUp();
+        EXPECT_CALL(mMockEventHub, getDeviceClasses(EVENTHUB_ID))
+                .WillRepeatedly(Return(InputDeviceClass::JOYSTICK | InputDeviceClass::EXTERNAL));
+
+        // The mapper requests info on all ABS axis IDs, including ones which aren't actually used
+        // (e.g. in the range from 0x0b (ABS_BRAKE) to 0x0f (ABS_HAT0X)), so just return nullopt for
+        // all axes we don't explicitly set up below.
+        EXPECT_CALL(mMockEventHub, getAbsoluteAxisInfo(EVENTHUB_ID, testing::_))
+                .WillRepeatedly(Return(std::nullopt));
+
+        setupAxis(ABS_X, /*valid=*/true, /*min=*/-32767, /*max=*/32767, /*resolution=*/0);
+        setupAxis(ABS_Y, /*valid=*/true, /*min=*/-32767, /*max=*/32767, /*resolution=*/0);
+    }
+};
+
+TEST_F(JoystickInputMapperTest, Configure_AssignsDisplayUniqueId) {
+    DisplayViewport viewport;
+    viewport.displayId = ui::LogicalDisplayId{1};
+    EXPECT_CALL((*mDevice), getAssociatedViewport).WillRepeatedly(Return(viewport));
+    mMapper = createInputMapper<JoystickInputMapper>(*mDeviceContext,
+                                                     mFakePolicy->getReaderConfiguration());
+
+    std::list<NotifyArgs> out;
+
+    // Send an axis event
+    out = process(EV_ABS, ABS_X, 100);
+    ASSERT_THAT(out, IsEmpty());
+    out = process(EV_SYN, SYN_REPORT, 0);
+    ASSERT_THAT(out, ElementsAre(VariantWith<NotifyMotionArgs>(WithDisplayId(viewport.displayId))));
+
+    // Send another axis event
+    out = process(EV_ABS, ABS_Y, 100);
+    ASSERT_THAT(out, IsEmpty());
+    out = process(EV_SYN, SYN_REPORT, 0);
+    ASSERT_THAT(out, ElementsAre(VariantWith<NotifyMotionArgs>(WithDisplayId(viewport.displayId))));
+}
+
+} // namespace android
diff --git a/services/inputflinger/tests/KeyboardInputMapper_test.cpp b/services/inputflinger/tests/KeyboardInputMapper_test.cpp
index d3e8dee..88c25d3 100644
--- a/services/inputflinger/tests/KeyboardInputMapper_test.cpp
+++ b/services/inputflinger/tests/KeyboardInputMapper_test.cpp
@@ -55,7 +55,6 @@
 
     void SetUp() override {
         InputMapperUnitTest::SetUp();
-        createDevice();
 
         // set key-codes expected in tests
         for (const auto& [scanCode, outKeycode] : mKeyCodeMap) {
@@ -66,6 +65,8 @@
         mFakePolicy = sp<FakeInputReaderPolicy>::make();
         EXPECT_CALL(mMockInputReaderContext, getPolicy).WillRepeatedly(Return(mFakePolicy.get()));
 
+        ON_CALL((*mDevice), getSources).WillByDefault(Return(AINPUT_SOURCE_KEYBOARD));
+
         mMapper = createInputMapper<KeyboardInputMapper>(*mDeviceContext, mReaderConfiguration,
                                                          AINPUT_SOURCE_KEYBOARD);
     }
diff --git a/services/inputflinger/tests/MultiTouchInputMapper_test.cpp b/services/inputflinger/tests/MultiTouchInputMapper_test.cpp
index d4d3c38..9a6b266 100644
--- a/services/inputflinger/tests/MultiTouchInputMapper_test.cpp
+++ b/services/inputflinger/tests/MultiTouchInputMapper_test.cpp
@@ -109,7 +109,6 @@
         mFakePolicy->addDisplayViewport(DISPLAY_ID, DISPLAY_WIDTH, DISPLAY_HEIGHT, ui::ROTATION_0,
                                         /*isActive=*/true, "local:0", NO_PORT,
                                         ViewportType::INTERNAL);
-        createDevice();
         mMapper = createInputMapper<MultiTouchInputMapper>(*mDeviceContext,
                                                            mFakePolicy->getReaderConfiguration());
     }
diff --git a/services/inputflinger/tests/MultiTouchMotionAccumulator_test.cpp b/services/inputflinger/tests/MultiTouchMotionAccumulator_test.cpp
index b441a23..9ddb8c1 100644
--- a/services/inputflinger/tests/MultiTouchMotionAccumulator_test.cpp
+++ b/services/inputflinger/tests/MultiTouchMotionAccumulator_test.cpp
@@ -23,10 +23,7 @@
 protected:
     static constexpr size_t SLOT_COUNT = 8;
 
-    void SetUp() override {
-        InputMapperUnitTest::SetUp();
-        createDevice();
-    }
+    void SetUp() override { InputMapperUnitTest::SetUp(); }
 
     MultiTouchMotionAccumulator mMotionAccumulator;
 
diff --git a/services/inputflinger/tests/RotaryEncoderInputMapper_test.cpp b/services/inputflinger/tests/RotaryEncoderInputMapper_test.cpp
index 366b3dc..6607bc7 100644
--- a/services/inputflinger/tests/RotaryEncoderInputMapper_test.cpp
+++ b/services/inputflinger/tests/RotaryEncoderInputMapper_test.cpp
@@ -78,36 +78,6 @@
     return v;
 }
 
-/**
- * A fake InputDeviceContext that allows the associated viewport to be specified for the mapper.
- *
- * This is currently necessary because InputMapperUnitTest doesn't register the mappers it creates
- * with the InputDevice object, meaning that InputDevice::isIgnored becomes true, and the input
- * device doesn't set its associated viewport when it's configured.
- *
- * TODO(b/319217713): work out a way to avoid this fake.
- */
-class ViewportFakingInputDeviceContext : public InputDeviceContext {
-public:
-    ViewportFakingInputDeviceContext(InputDevice& device, int32_t eventHubId,
-                                     std::optional<DisplayViewport> viewport)
-          : InputDeviceContext(device, eventHubId), mAssociatedViewport(viewport) {}
-
-    ViewportFakingInputDeviceContext(InputDevice& device, int32_t eventHubId)
-          : ViewportFakingInputDeviceContext(device, eventHubId, createPrimaryViewport()) {}
-
-    std::optional<DisplayViewport> getAssociatedViewport() const override {
-        return mAssociatedViewport;
-    }
-
-    void setViewport(const std::optional<DisplayViewport>& viewport) {
-        mAssociatedViewport = viewport;
-    }
-
-private:
-    std::optional<DisplayViewport> mAssociatedViewport;
-};
-
 } // namespace
 
 namespace vd_flags = android::companion::virtualdevice::flags;
@@ -138,9 +108,8 @@
     mReaderConfiguration.setDisplayViewports({primaryViewport, secondaryViewport});
 
     // Set up the secondary display as the associated viewport of the mapper.
-    createDevice();
-    ViewportFakingInputDeviceContext deviceContext(*mDevice, EVENTHUB_ID, secondaryViewport);
-    mMapper = createInputMapper<RotaryEncoderInputMapper>(deviceContext, mReaderConfiguration);
+    EXPECT_CALL((*mDevice), getAssociatedViewport).WillRepeatedly(Return(secondaryViewport));
+    mMapper = createInputMapper<RotaryEncoderInputMapper>(*mDeviceContext, mReaderConfiguration);
 
     std::list<NotifyArgs> args;
     // Ensure input events are generated for the secondary display.
@@ -159,7 +128,6 @@
     mFakePolicy->addDisplayViewport(createPrimaryViewport());
 
     // Set up the mapper with no associated viewport.
-    createDevice();
     mMapper = createInputMapper<RotaryEncoderInputMapper>(*mDeviceContext, mReaderConfiguration);
 
     // Ensure input events are generated without display ID
@@ -174,7 +142,6 @@
 }
 
 TEST_F(RotaryEncoderInputMapperTest, ProcessRegularScroll) {
-    createDevice();
     mMapper = createInputMapper<RotaryEncoderInputMapper>(*mDeviceContext, mReaderConfiguration);
 
     std::list<NotifyArgs> args;
@@ -191,7 +158,6 @@
     vd_flags::high_resolution_scroll(true);
     EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_WHEEL_HI_RES))
             .WillRepeatedly(Return(true));
-    createDevice();
     mMapper = createInputMapper<RotaryEncoderInputMapper>(*mDeviceContext, mReaderConfiguration);
 
     std::list<NotifyArgs> args;
@@ -208,7 +174,6 @@
     vd_flags::high_resolution_scroll(true);
     EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_WHEEL_HI_RES))
             .WillRepeatedly(Return(true));
-    createDevice();
     mMapper = createInputMapper<RotaryEncoderInputMapper>(*mDeviceContext, mReaderConfiguration);
 
     std::list<NotifyArgs> args;
diff --git a/services/inputflinger/tests/SwitchInputMapper_test.cpp b/services/inputflinger/tests/SwitchInputMapper_test.cpp
index 4020e78..ebbf10b 100644
--- a/services/inputflinger/tests/SwitchInputMapper_test.cpp
+++ b/services/inputflinger/tests/SwitchInputMapper_test.cpp
@@ -33,7 +33,6 @@
 protected:
     void SetUp() override {
         InputMapperUnitTest::SetUp();
-        createDevice();
         mMapper = createInputMapper<SwitchInputMapper>(*mDeviceContext,
                                                        mFakePolicy->getReaderConfiguration());
     }
diff --git a/services/inputflinger/tests/TouchpadInputMapper_test.cpp b/services/inputflinger/tests/TouchpadInputMapper_test.cpp
index 1afb4f0..fc8a7da 100644
--- a/services/inputflinger/tests/TouchpadInputMapper_test.cpp
+++ b/services/inputflinger/tests/TouchpadInputMapper_test.cpp
@@ -109,7 +109,6 @@
                 .WillRepeatedly([]() -> base::Result<std::vector<int32_t>> {
                     return base::ResultError("Axis not supported", NAME_NOT_FOUND);
                 });
-        createDevice();
         mMapper = createInputMapper<TouchpadInputMapper>(*mDeviceContext, mReaderConfiguration);
     }
 };
diff --git a/services/inputflinger/tests/VibratorInputMapper_test.cpp b/services/inputflinger/tests/VibratorInputMapper_test.cpp
index aa4a6bb..6e3344c 100644
--- a/services/inputflinger/tests/VibratorInputMapper_test.cpp
+++ b/services/inputflinger/tests/VibratorInputMapper_test.cpp
@@ -36,7 +36,6 @@
 protected:
     void SetUp() override {
         InputMapperUnitTest::SetUp();
-        createDevice();
         EXPECT_CALL(mMockEventHub, getDeviceClasses(EVENTHUB_ID))
                 .WillRepeatedly(testing::Return(InputDeviceClass::VIBRATOR));
         EXPECT_CALL(mMockEventHub, getVibratorIds(EVENTHUB_ID))
diff --git a/services/inputflinger/tests/fuzzers/MapperHelpers.h b/services/inputflinger/tests/fuzzers/MapperHelpers.h
index bf56d3a..fea0d9a 100644
--- a/services/inputflinger/tests/fuzzers/MapperHelpers.h
+++ b/services/inputflinger/tests/fuzzers/MapperHelpers.h
@@ -129,7 +129,6 @@
         }
         if (mFdp->ConsumeBool()) {
             return std::optional<RawAbsoluteAxisInfo>({
-                    .valid = mFdp->ConsumeBool(),
                     .minValue = mFdp->ConsumeIntegral<int32_t>(),
                     .maxValue = mFdp->ConsumeIntegral<int32_t>(),
                     .flat = mFdp->ConsumeIntegral<int32_t>(),
diff --git a/services/inputflinger/tests/fuzzers/TouchpadInputFuzzer.cpp b/services/inputflinger/tests/fuzzers/TouchpadInputFuzzer.cpp
index c620032..ebbb311 100644
--- a/services/inputflinger/tests/fuzzers/TouchpadInputFuzzer.cpp
+++ b/services/inputflinger/tests/fuzzers/TouchpadInputFuzzer.cpp
@@ -34,7 +34,6 @@
     if (fdp.ConsumeBool()) {
         eventHub.setAbsoluteAxisInfo(id, axis,
                                      RawAbsoluteAxisInfo{
-                                             .valid = fdp.ConsumeBool(),
                                              .minValue = fdp.ConsumeIntegral<int32_t>(),
                                              .maxValue = fdp.ConsumeIntegral<int32_t>(),
                                              .flat = fdp.ConsumeIntegral<int32_t>(),
diff --git a/services/surfaceflinger/Android.bp b/services/surfaceflinger/Android.bp
index a37433c..c2a9880 100644
--- a/services/surfaceflinger/Android.bp
+++ b/services/surfaceflinger/Android.bp
@@ -47,6 +47,7 @@
         "libtimestats_deps",
         "libsurfaceflinger_common_deps",
         "surfaceflinger_defaults",
+        "libsurfaceflinger_proto_deps",
     ],
     cflags: [
         "-DLOG_TAG=\"SurfaceFlinger\"",
@@ -93,7 +94,6 @@
         "libcompositionengine",
         "libframetimeline",
         "libgui_aidl_static",
-        "liblayers_proto",
         "libperfetto_client_experimental",
         "librenderengine",
         "libscheduler",
diff --git a/services/surfaceflinger/CompositionEngine/Android.bp b/services/surfaceflinger/CompositionEngine/Android.bp
index 7fa58df..b826466 100644
--- a/services/surfaceflinger/CompositionEngine/Android.bp
+++ b/services/surfaceflinger/CompositionEngine/Android.bp
@@ -17,6 +17,7 @@
         "librenderengine_deps",
         "libtimestats_deps",
         "surfaceflinger_defaults",
+        "libsurfaceflinger_proto_deps",
     ],
     cflags: [
         "-DLOG_TAG=\"CompositionEngine\"",
@@ -41,7 +42,6 @@
         "libutils",
     ],
     static_libs: [
-        "liblayers_proto",
         "libmath",
         "librenderengine",
         "libtimestats",
diff --git a/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.cpp b/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.cpp
index 4e09381..47fd700 100644
--- a/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.cpp
+++ b/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.cpp
@@ -320,11 +320,8 @@
 void updateMetadataAndGameMode(LayerSnapshot& snapshot, const RequestedLayerState& requested,
                                const LayerSnapshotBuilder::Args& args,
                                const LayerSnapshot& parentSnapshot) {
-    if (snapshot.changes.test(RequestedLayerState::Changes::GameMode)) {
-        snapshot.gameMode = requested.metadata.has(gui::METADATA_GAME_MODE)
-                ? requested.gameMode
-                : parentSnapshot.gameMode;
-    }
+    snapshot.gameMode = requested.metadata.has(gui::METADATA_GAME_MODE) ? requested.gameMode
+                                                                        : parentSnapshot.gameMode;
     updateMetadata(snapshot, requested, args);
     if (args.includeMetadata) {
         snapshot.layerMetadata = parentSnapshot.layerMetadata;
@@ -780,7 +777,8 @@
         }
         if (forceUpdate ||
             (args.includeMetadata &&
-             snapshot.changes.test(RequestedLayerState::Changes::Metadata))) {
+             snapshot.changes.any(RequestedLayerState::Changes::Metadata |
+                                  RequestedLayerState::Changes::Geometry))) {
             updateMetadataAndGameMode(snapshot, requested, args, parentSnapshot);
         }
         return;
@@ -848,7 +846,9 @@
         }
     }
 
-    if (forceUpdate || snapshot.changes.test(RequestedLayerState::Changes::Metadata)) {
+    if (forceUpdate ||
+        snapshot.changes.any(RequestedLayerState::Changes::Metadata |
+                             RequestedLayerState::Changes::Hierarchy)) {
         updateMetadataAndGameMode(snapshot, requested, args, parentSnapshot);
     }
 
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index a6d2b15..1258509 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -1314,7 +1314,7 @@
 }
 
 void Layer::setFrameTimelineVsyncForBufferTransaction(const FrameTimelineInfo& info,
-                                                      nsecs_t postTime) {
+                                                      nsecs_t postTime, gui::GameMode gameMode) {
     mDrawingState.postTime = postTime;
 
     // Check if one of the bufferlessSurfaceFramesTX contains the same vsyncId. This can happen if
@@ -1330,14 +1330,15 @@
         mDrawingState.bufferSurfaceFrameTX->setActualQueueTime(postTime);
     } else {
         mDrawingState.bufferSurfaceFrameTX =
-                createSurfaceFrameForBuffer(info, postTime, mTransactionName);
+                createSurfaceFrameForBuffer(info, postTime, mTransactionName, gameMode);
     }
 
-    setFrameTimelineVsyncForSkippedFrames(info, postTime, mTransactionName);
+    setFrameTimelineVsyncForSkippedFrames(info, postTime, mTransactionName, gameMode);
 }
 
 void Layer::setFrameTimelineVsyncForBufferlessTransaction(const FrameTimelineInfo& info,
-                                                          nsecs_t postTime) {
+                                                          nsecs_t postTime,
+                                                          gui::GameMode gameMode) {
     mDrawingState.frameTimelineInfo = info;
     mDrawingState.postTime = postTime;
     mDrawingState.modified = true;
@@ -1356,17 +1357,17 @@
     // targeting different vsyncs).
     auto it = mDrawingState.bufferlessSurfaceFramesTX.find(info.vsyncId);
     if (it == mDrawingState.bufferlessSurfaceFramesTX.end()) {
-        auto surfaceFrame = createSurfaceFrameForTransaction(info, postTime);
+        auto surfaceFrame = createSurfaceFrameForTransaction(info, postTime, gameMode);
         mDrawingState.bufferlessSurfaceFramesTX[info.vsyncId] = surfaceFrame;
     } else {
         if (it->second->getPresentState() == PresentState::Presented) {
             // If the SurfaceFrame was already presented, its safe to overwrite it since it must
             // have been from previous vsync.
-            it->second = createSurfaceFrameForTransaction(info, postTime);
+            it->second = createSurfaceFrameForTransaction(info, postTime, gameMode);
         }
     }
 
-    setFrameTimelineVsyncForSkippedFrames(info, postTime, mTransactionName);
+    setFrameTimelineVsyncForSkippedFrames(info, postTime, mTransactionName, gameMode);
 }
 
 void Layer::addSurfaceFrameDroppedForBuffer(
@@ -1386,12 +1387,12 @@
 }
 
 std::shared_ptr<frametimeline::SurfaceFrame> Layer::createSurfaceFrameForTransaction(
-        const FrameTimelineInfo& info, nsecs_t postTime) {
+        const FrameTimelineInfo& info, nsecs_t postTime, gui::GameMode gameMode) {
     auto surfaceFrame =
             mFlinger->mFrameTimeline->createSurfaceFrameForToken(info, mOwnerPid, mOwnerUid,
                                                                  getSequence(), mName,
                                                                  mTransactionName,
-                                                                 /*isBuffer*/ false, getGameMode());
+                                                                 /*isBuffer*/ false, gameMode);
     surfaceFrame->setActualStartTime(info.startTimeNanos);
     // For Transactions, the post time is considered to be both queue and acquire fence time.
     surfaceFrame->setActualQueueTime(postTime);
@@ -1404,11 +1405,12 @@
 }
 
 std::shared_ptr<frametimeline::SurfaceFrame> Layer::createSurfaceFrameForBuffer(
-        const FrameTimelineInfo& info, nsecs_t queueTime, std::string debugName) {
+        const FrameTimelineInfo& info, nsecs_t queueTime, std::string debugName,
+        gui::GameMode gameMode) {
     auto surfaceFrame =
             mFlinger->mFrameTimeline->createSurfaceFrameForToken(info, mOwnerPid, mOwnerUid,
                                                                  getSequence(), mName, debugName,
-                                                                 /*isBuffer*/ true, getGameMode());
+                                                                 /*isBuffer*/ true, gameMode);
     surfaceFrame->setActualStartTime(info.startTimeNanos);
     // For buffers, acquire fence time will set during latch.
     surfaceFrame->setActualQueueTime(queueTime);
@@ -1420,7 +1422,7 @@
 }
 
 void Layer::setFrameTimelineVsyncForSkippedFrames(const FrameTimelineInfo& info, nsecs_t postTime,
-                                                  std::string debugName) {
+                                                  std::string debugName, gui::GameMode gameMode) {
     if (info.skippedFrameVsyncId == FrameTimelineInfo::INVALID_VSYNC_ID) {
         return;
     }
@@ -1432,7 +1434,7 @@
             mFlinger->mFrameTimeline->createSurfaceFrameForToken(skippedFrameTimelineInfo,
                                                                  mOwnerPid, mOwnerUid,
                                                                  getSequence(), mName, debugName,
-                                                                 /*isBuffer*/ false, getGameMode());
+                                                                 /*isBuffer*/ false, gameMode);
     surfaceFrame->setActualStartTime(skippedFrameTimelineInfo.skippedFrameStartTimeNanos);
     // For Transactions, the post time is considered to be both queue and acquire fence time.
     surfaceFrame->setActualQueueTime(postTime);
@@ -1671,25 +1673,12 @@
     return count;
 }
 
-void Layer::setGameModeForTree(GameMode gameMode) {
-    const auto& currentState = getDrawingState();
-    if (currentState.metadata.has(gui::METADATA_GAME_MODE)) {
-        gameMode =
-                static_cast<GameMode>(currentState.metadata.getInt32(gui::METADATA_GAME_MODE, 0));
-    }
-    setGameMode(gameMode);
-    for (const sp<Layer>& child : mCurrentChildren) {
-        child->setGameModeForTree(gameMode);
-    }
-}
-
 void Layer::addChild(const sp<Layer>& layer) {
     mFlinger->mSomeChildrenChanged = true;
     setTransactionFlags(eTransactionNeeded);
 
     mCurrentChildren.add(layer);
     layer->setParent(sp<Layer>::fromExisting(this));
-    layer->setGameModeForTree(mGameMode);
     updateTreeHasFrameRateVote();
 }
 
@@ -1701,7 +1690,6 @@
     const auto removeResult = mCurrentChildren.remove(layer);
 
     updateTreeHasFrameRateVote();
-    layer->setGameModeForTree(GameMode::Unsupported);
     layer->updateTreeHasFrameRateVote();
 
     return removeResult;
@@ -2540,10 +2528,6 @@
 compositionengine::OutputLayer* Layer::findOutputLayerForDisplay(
         const DisplayDevice* display) const {
     if (!display) return nullptr;
-    if (!mFlinger->mLayerLifecycleManagerEnabled) {
-        return display->getCompositionDisplay()->getOutputLayerForLayer(
-                getCompositionEngineLayerFE());
-    }
     sp<LayerFE> layerFE;
     frontend::LayerHierarchy::TraversalPath path{.id = static_cast<uint32_t>(sequence)};
     for (auto& [p, layer] : mLayerFEs) {
@@ -2559,10 +2543,6 @@
 compositionengine::OutputLayer* Layer::findOutputLayerForDisplay(
         const DisplayDevice* display, const frontend::LayerHierarchy::TraversalPath& path) const {
     if (!display) return nullptr;
-    if (!mFlinger->mLayerLifecycleManagerEnabled) {
-        return display->getCompositionDisplay()->getOutputLayerForLayer(
-                getCompositionEngineLayerFE());
-    }
     sp<LayerFE> layerFE;
     for (auto& [p, layer] : mLayerFEs) {
         if (p == path) {
@@ -3090,7 +3070,7 @@
 
 bool Layer::setBuffer(std::shared_ptr<renderengine::ExternalTexture>& buffer,
                       const BufferData& bufferData, nsecs_t postTime, nsecs_t desiredPresentTime,
-                      bool isAutoTimestamp, const FrameTimelineInfo& info) {
+                      bool isAutoTimestamp, const FrameTimelineInfo& info, gui::GameMode gameMode) {
     SFTRACE_FORMAT("setBuffer %s - hasBuffer=%s", getDebugName(), (buffer ? "true" : "false"));
 
     const bool frameNumberChanged =
@@ -3116,12 +3096,12 @@
         resetDrawingStateBufferInfo();
         setTransactionFlags(eTransactionNeeded);
         mDrawingState.bufferSurfaceFrameTX = nullptr;
-        setFrameTimelineVsyncForBufferlessTransaction(info, postTime);
+        setFrameTimelineVsyncForBufferlessTransaction(info, postTime, gameMode);
         return true;
     } else {
         // release sideband stream if it exists and a non null buffer is being set
         if (mDrawingState.sidebandStream != nullptr) {
-            setSidebandStream(nullptr, info, postTime);
+            setSidebandStream(nullptr, info, postTime, gameMode);
         }
     }
 
@@ -3160,9 +3140,9 @@
 
     const int32_t layerId = getSequence();
     mFlinger->mTimeStats->setPostTime(layerId, mDrawingState.frameNumber, getName().c_str(),
-                                      mOwnerUid, postTime, getGameMode());
+                                      mOwnerUid, postTime, gameMode);
 
-    setFrameTimelineVsyncForBufferTransaction(info, postTime);
+    setFrameTimelineVsyncForBufferTransaction(info, postTime, gameMode);
 
     if (bufferData.dequeueTime > 0) {
         const uint64_t bufferId = mDrawingState.buffer->getId();
@@ -3317,7 +3297,7 @@
 }
 
 bool Layer::setSidebandStream(const sp<NativeHandle>& sidebandStream, const FrameTimelineInfo& info,
-                              nsecs_t postTime) {
+                              nsecs_t postTime, gui::GameMode gameMode) {
     if (mDrawingState.sidebandStream == sidebandStream) return false;
 
     if (mDrawingState.sidebandStream != nullptr && sidebandStream == nullptr) {
@@ -3332,7 +3312,7 @@
         releasePreviousBuffer();
         resetDrawingStateBufferInfo();
         mDrawingState.bufferSurfaceFrameTX = nullptr;
-        setFrameTimelineVsyncForBufferlessTransaction(info, postTime);
+        setFrameTimelineVsyncForBufferlessTransaction(info, postTime, gameMode);
     }
     setTransactionFlags(eTransactionNeeded);
     if (!mSidebandStreamChanged.exchange(true)) {
@@ -3990,7 +3970,8 @@
 void Layer::onCompositionPresented(const DisplayDevice* display,
                                    const std::shared_ptr<FenceTime>& glDoneFence,
                                    const std::shared_ptr<FenceTime>& presentFence,
-                                   const CompositorTiming& compositorTiming) {
+                                   const CompositorTiming& compositorTiming,
+                                   gui::GameMode gameMode) {
     // mFrameLatencyNeeded is true when a new frame was latched for the
     // composition.
     if (!mBufferInfo.mFrameLatencyNeeded) return;
@@ -4037,7 +4018,6 @@
                 mFlinger->mScheduler->getFrameRateOverride(getOwnerUid());
 
         const auto vote = frameRateToSetFrameRateVotePayload(getFrameRateForLayerTree());
-        const auto gameMode = getGameMode();
 
         if (presentFence->isValid()) {
             mFlinger->mTimeStats->setPresentFence(layerId, mCurrentFrameNumber, presentFence,
@@ -4321,38 +4301,6 @@
     }
 }
 
-void Layer::updateMetadataSnapshot(const LayerMetadata& parentMetadata) {
-    mSnapshot->layerMetadata = parentMetadata;
-    mSnapshot->layerMetadata.merge(mDrawingState.metadata);
-    for (const sp<Layer>& child : mDrawingChildren) {
-        child->updateMetadataSnapshot(mSnapshot->layerMetadata);
-    }
-}
-
-void Layer::updateRelativeMetadataSnapshot(const LayerMetadata& relativeLayerMetadata,
-                                           std::unordered_set<Layer*>& visited) {
-    if (visited.find(this) != visited.end()) {
-        ALOGW("Cycle containing layer %s detected in z-order relatives", getDebugName());
-        return;
-    }
-    visited.insert(this);
-
-    mSnapshot->relativeLayerMetadata = relativeLayerMetadata;
-
-    if (mDrawingState.zOrderRelatives.empty()) {
-        return;
-    }
-    LayerMetadata childRelativeLayerMetadata = mSnapshot->relativeLayerMetadata;
-    childRelativeLayerMetadata.merge(mSnapshot->layerMetadata);
-    for (wp<Layer> weakRelative : mDrawingState.zOrderRelatives) {
-        sp<Layer> relative = weakRelative.promote();
-        if (!relative) {
-            continue;
-        }
-        relative->updateRelativeMetadataSnapshot(childRelativeLayerMetadata, visited);
-    }
-}
-
 bool Layer::setTrustedPresentationInfo(TrustedPresentationThresholds const& thresholds,
                                        TrustedPresentationListener const& listener) {
     bool hadTrustedPresentationListener = hasTrustedPresentationListener();
diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index 52f169e..c838b97 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -312,7 +312,7 @@
     bool setBuffer(std::shared_ptr<renderengine::ExternalTexture>& /* buffer */,
                    const BufferData& /* bufferData */, nsecs_t /* postTime */,
                    nsecs_t /*desiredPresentTime*/, bool /*isAutoTimestamp*/,
-                   const FrameTimelineInfo& /*info*/);
+                   const FrameTimelineInfo& /*info*/, gui::GameMode gameMode);
     void setDesiredPresentTime(nsecs_t /*desiredPresentTime*/, bool /*isAutoTimestamp*/);
     bool setDataspace(ui::Dataspace /*dataspace*/);
     bool setExtendedRangeBrightness(float currentBufferRatio, float desiredRatio);
@@ -322,7 +322,8 @@
     bool setSurfaceDamageRegion(const Region& /*surfaceDamage*/);
     bool setApi(int32_t /*api*/);
     bool setSidebandStream(const sp<NativeHandle>& /*sidebandStream*/,
-                           const FrameTimelineInfo& /* info*/, nsecs_t /* postTime */);
+                           const FrameTimelineInfo& /* info*/, nsecs_t /* postTime */,
+                           gui::GameMode gameMode);
     bool setTransactionCompletedListeners(const std::vector<sp<CallbackHandle>>& /*handles*/,
                                           bool willPresent);
     virtual bool setBackgroundColor(const half3& color, float alpha, ui::Dataspace dataspace)
@@ -439,7 +440,7 @@
     void onCompositionPresented(const DisplayDevice*,
                                 const std::shared_ptr<FenceTime>& /*glDoneFence*/,
                                 const std::shared_ptr<FenceTime>& /*presentFence*/,
-                                const CompositorTiming&);
+                                const CompositorTiming&, gui::GameMode gameMode);
 
     // If a buffer was replaced this frame, release the former buffer
     void releasePendingBuffer(nsecs_t /*dequeueReadyTime*/);
@@ -794,9 +795,10 @@
     bool setFrameRateSelectionStrategy(FrameRateSelectionStrategy);
 
     virtual void setFrameTimelineInfoForBuffer(const FrameTimelineInfo& /*info*/) {}
-    void setFrameTimelineVsyncForBufferTransaction(const FrameTimelineInfo& info, nsecs_t postTime);
+    void setFrameTimelineVsyncForBufferTransaction(const FrameTimelineInfo& info, nsecs_t postTime,
+                                                   gui::GameMode gameMode);
     void setFrameTimelineVsyncForBufferlessTransaction(const FrameTimelineInfo& info,
-                                                       nsecs_t postTime);
+                                                       nsecs_t postTime, gui::GameMode gameMode);
 
     void addSurfaceFrameDroppedForBuffer(std::shared_ptr<frametimeline::SurfaceFrame>& surfaceFrame,
                                          nsecs_t dropTime);
@@ -805,11 +807,12 @@
             nsecs_t currentLatchTime);
 
     std::shared_ptr<frametimeline::SurfaceFrame> createSurfaceFrameForTransaction(
-            const FrameTimelineInfo& info, nsecs_t postTime);
+            const FrameTimelineInfo& info, nsecs_t postTime, gui::GameMode gameMode);
     std::shared_ptr<frametimeline::SurfaceFrame> createSurfaceFrameForBuffer(
-            const FrameTimelineInfo& info, nsecs_t queueTime, std::string debugName);
+            const FrameTimelineInfo& info, nsecs_t queueTime, std::string debugName,
+            gui::GameMode gameMode);
     void setFrameTimelineVsyncForSkippedFrames(const FrameTimelineInfo& info, nsecs_t postTime,
-                                               std::string debugName);
+                                               std::string debugName, gui::GameMode gameMode);
 
     bool setTrustedPresentationInfo(TrustedPresentationThresholds const& thresholds,
                                     TrustedPresentationListener const& listener);
@@ -832,13 +835,6 @@
      */
     bool hasInputInfo() const;
 
-    // Sets the gui::GameMode for the tree rooted at this layer. A layer in the tree inherits this
-    // gui::GameMode unless it (or an ancestor) has GAME_MODE_METADATA.
-    void setGameModeForTree(gui::GameMode);
-
-    void setGameMode(gui::GameMode gameMode) { mGameMode = gameMode; }
-    gui::GameMode getGameMode() const { return mGameMode; }
-
     virtual uid_t getOwnerUid() const { return mOwnerUid; }
 
     pid_t getOwnerPid() { return mOwnerPid; }
@@ -899,9 +895,6 @@
     // CompositionEngine to create a single path for composing layers.
     void updateSnapshot(bool updateGeometry);
     void updateChildrenSnapshots(bool updateGeometry);
-    void updateMetadataSnapshot(const LayerMetadata& parentMetadata);
-    void updateRelativeMetadataSnapshot(const LayerMetadata& relativeLayerMetadata,
-                                        std::unordered_set<Layer*>& visited);
     sp<Layer> getClonedFrom() const {
         return mClonedFrom != nullptr ? mClonedFrom.promote() : nullptr;
     }
diff --git a/services/surfaceflinger/Scheduler/ISchedulerCallback.h b/services/surfaceflinger/Scheduler/ISchedulerCallback.h
index f430526..2b9e88c 100644
--- a/services/surfaceflinger/Scheduler/ISchedulerCallback.h
+++ b/services/surfaceflinger/Scheduler/ISchedulerCallback.h
@@ -28,7 +28,6 @@
     virtual void requestHardwareVsync(PhysicalDisplayId, bool enabled) = 0;
     virtual void requestDisplayModes(std::vector<display::DisplayModeRequest>) = 0;
     virtual void kernelTimerChanged(bool expired) = 0;
-    virtual void triggerOnFrameRateOverridesChanged() = 0;
     virtual void onChoreographerAttached() = 0;
     virtual void onExpectedPresentTimePosted(TimePoint, ftl::NonNull<DisplayModePtr>,
                                              Fps renderRate) = 0;
diff --git a/services/surfaceflinger/Scheduler/MessageQueue.cpp b/services/surfaceflinger/Scheduler/MessageQueue.cpp
index 6a67ac5..2e1f938 100644
--- a/services/surfaceflinger/Scheduler/MessageQueue.cpp
+++ b/services/surfaceflinger/Scheduler/MessageQueue.cpp
@@ -188,12 +188,13 @@
     postMessage(sp<ConfigureHandler>::make(mCompositor));
 }
 
-void MessageQueue::scheduleFrame() {
+void MessageQueue::scheduleFrame(Duration workDurationSlack) {
     SFTRACE_CALL();
 
     std::lock_guard lock(mVsync.mutex);
+    const auto workDuration = Duration(mVsync.workDuration.get() - workDurationSlack);
     mVsync.scheduledFrameTimeOpt =
-            mVsync.registration->schedule({.workDuration = mVsync.workDuration.get().count(),
+            mVsync.registration->schedule({.workDuration = workDuration.ns(),
                                            .readyDuration = 0,
                                            .lastVsync = mVsync.lastCallbackTime.ns()});
 }
diff --git a/services/surfaceflinger/Scheduler/MessageQueue.h b/services/surfaceflinger/Scheduler/MessageQueue.h
index c5fc371..ba1efbe 100644
--- a/services/surfaceflinger/Scheduler/MessageQueue.h
+++ b/services/surfaceflinger/Scheduler/MessageQueue.h
@@ -74,7 +74,7 @@
     virtual void postMessage(sp<MessageHandler>&&) = 0;
     virtual void postMessageDelayed(sp<MessageHandler>&&, nsecs_t uptimeDelay) = 0;
     virtual void scheduleConfigure() = 0;
-    virtual void scheduleFrame() = 0;
+    virtual void scheduleFrame(Duration workDurationSlack = Duration::fromNs(0)) = 0;
 
     virtual std::optional<scheduler::ScheduleResult> getScheduledFrameResult() const = 0;
 };
@@ -149,7 +149,7 @@
     void postMessageDelayed(sp<MessageHandler>&&, nsecs_t uptimeDelay) override;
 
     void scheduleConfigure() override;
-    void scheduleFrame() override;
+    void scheduleFrame(Duration workDurationSlack = Duration::fromNs(0)) override;
 
     std::optional<scheduler::ScheduleResult> getScheduledFrameResult() const override;
 };
diff --git a/services/surfaceflinger/Scheduler/RefreshRateSelector.h b/services/surfaceflinger/Scheduler/RefreshRateSelector.h
index 6f9c146..998b1b8 100644
--- a/services/surfaceflinger/Scheduler/RefreshRateSelector.h
+++ b/services/surfaceflinger/Scheduler/RefreshRateSelector.h
@@ -321,7 +321,10 @@
     RefreshRateSelector(const RefreshRateSelector&) = delete;
     RefreshRateSelector& operator=(const RefreshRateSelector&) = delete;
 
-    const DisplayModes& displayModes() const { return mDisplayModes; }
+    DisplayModes displayModes() const {
+        std::lock_guard lock(mLock);
+        return mDisplayModes;
+    }
 
     // Returns whether switching modes (refresh rate or resolution) is possible.
     // TODO(b/158780872): Consider HAL support, and skip frame rate detection if the modes only
diff --git a/services/surfaceflinger/Scheduler/Scheduler.cpp b/services/surfaceflinger/Scheduler/Scheduler.cpp
index 0cf7bdc..84584a4 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.cpp
+++ b/services/surfaceflinger/Scheduler/Scheduler.cpp
@@ -403,14 +403,20 @@
     eventThreadFor(Cycle::Render).enableSyntheticVsync(enable);
 }
 
-void Scheduler::onFrameRateOverridesChanged(Cycle cycle, PhysicalDisplayId displayId) {
-    const bool supportsFrameRateOverrideByContent =
-            pacesetterSelectorPtr()->supportsAppFrameRateOverrideByContent();
+void Scheduler::onFrameRateOverridesChanged() {
+    const auto [pacesetterId, supportsFrameRateOverrideByContent] = [this] {
+        std::scoped_lock lock(mDisplayLock);
+        const auto pacesetterOpt = pacesetterDisplayLocked();
+        LOG_ALWAYS_FATAL_IF(!pacesetterOpt);
+        const Display& pacesetter = *pacesetterOpt;
+        return std::make_pair(FTL_FAKE_GUARD(kMainThreadContext, *mPacesetterDisplayId),
+                              pacesetter.selectorPtr->supportsAppFrameRateOverrideByContent());
+    }();
 
     std::vector<FrameRateOverride> overrides =
             mFrameRateOverrideMappings.getAllFrameRateOverrides(supportsFrameRateOverrideByContent);
 
-    eventThreadFor(cycle).onFrameRateOverridesChanged(displayId, std::move(overrides));
+    eventThreadFor(Cycle::Render).onFrameRateOverridesChanged(pacesetterId, std::move(overrides));
 }
 
 void Scheduler::onHdcpLevelsChanged(Cycle cycle, PhysicalDisplayId displayId,
@@ -907,9 +913,13 @@
     }
 }
 
-bool Scheduler::updateFrameRateOverrides(GlobalSignals consideredSignals, Fps displayRefreshRate) {
-    std::scoped_lock lock(mPolicyLock);
-    return updateFrameRateOverridesLocked(consideredSignals, displayRefreshRate);
+void Scheduler::updateFrameRateOverrides(GlobalSignals consideredSignals, Fps displayRefreshRate) {
+    const bool changed = (std::scoped_lock(mPolicyLock),
+                          updateFrameRateOverridesLocked(consideredSignals, displayRefreshRate));
+
+    if (changed) {
+        onFrameRateOverridesChanged();
+    }
 }
 
 bool Scheduler::updateFrameRateOverridesLocked(GlobalSignals consideredSignals,
@@ -1157,7 +1167,7 @@
                 updateFrameRateOverridesLocked(consideredSignals, mPolicy.modeOpt->fps);
     }
     if (frameRateOverridesChanged) {
-        mSchedulerCallback.triggerOnFrameRateOverridesChanged();
+        onFrameRateOverridesChanged();
     }
     return consideredSignals;
 }
@@ -1257,6 +1267,8 @@
     } else {
         mFrameRateOverrideMappings.setGameModeRefreshRateForUid(frameRateOverride);
     }
+
+    onFrameRateOverridesChanged();
 }
 
 void Scheduler::setGameDefaultFrameRateForUid(FrameRateOverride frameRateOverride) {
@@ -1275,6 +1287,7 @@
     }
 
     mFrameRateOverrideMappings.setPreferredRefreshRateForUid(frameRateOverride);
+    onFrameRateOverridesChanged();
 }
 
 void Scheduler::updateSmallAreaDetection(
diff --git a/services/surfaceflinger/Scheduler/Scheduler.h b/services/surfaceflinger/Scheduler/Scheduler.h
index 94583db..e1f4d20 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.h
+++ b/services/surfaceflinger/Scheduler/Scheduler.h
@@ -159,8 +159,6 @@
 
     void enableSyntheticVsync(bool = true) REQUIRES(kMainThreadContext);
 
-    void onFrameRateOverridesChanged(Cycle, PhysicalDisplayId);
-
     void onHdcpLevelsChanged(Cycle, PhysicalDisplayId, int32_t, int32_t);
 
     // Modifies work duration in the event thread.
@@ -326,7 +324,7 @@
         return mLayerHistory.getLayerFramerate(now, id);
     }
 
-    bool updateFrameRateOverrides(GlobalSignals, Fps displayRefreshRate) EXCLUDES(mPolicyLock);
+    void updateFrameRateOverrides(GlobalSignals, Fps displayRefreshRate) EXCLUDES(mPolicyLock);
 
     // Returns true if the small dirty detection is enabled for the appId.
     bool supportSmallDirtyDetection(int32_t appId) {
@@ -450,6 +448,9 @@
 
     bool updateFrameRateOverridesLocked(GlobalSignals, Fps displayRefreshRate)
             REQUIRES(mPolicyLock);
+
+    void onFrameRateOverridesChanged();
+
     void updateAttachedChoreographers(const surfaceflinger::frontend::LayerHierarchy&,
                                       Fps displayRefreshRate);
     int updateAttachedChoreographersInternal(const surfaceflinger::frontend::LayerHierarchy&,
diff --git a/services/surfaceflinger/Scheduler/VSyncPredictor.cpp b/services/surfaceflinger/Scheduler/VSyncPredictor.cpp
index 3fc3901..04491a2 100644
--- a/services/surfaceflinger/Scheduler/VSyncPredictor.cpp
+++ b/services/surfaceflinger/Scheduler/VSyncPredictor.cpp
@@ -452,7 +452,7 @@
 
     const auto currentPeriod = mRateMap.find(idealPeriod())->second.slope;
     const auto threshold = currentPeriod / 2;
-    const auto minFramePeriod = minFramePeriodLocked().ns();
+    const auto minFramePeriod = minFramePeriodLocked();
 
     auto prev = lastConfirmedPresentTime.ns();
     for (auto& current : mPastExpectedPresentTimes) {
@@ -463,10 +463,10 @@
                                            1e6f);
         }
 
-        const auto minPeriodViolation = current.ns() - prev + threshold < minFramePeriod;
+        const auto minPeriodViolation = current.ns() - prev + threshold < minFramePeriod.ns();
         if (minPeriodViolation) {
             SFTRACE_NAME("minPeriodViolation");
-            current = TimePoint::fromNs(prev + minFramePeriod);
+            current = TimePoint::fromNs(prev + minFramePeriod.ns());
             prev = current.ns();
         } else {
             break;
@@ -477,7 +477,7 @@
         const auto phase = Duration(mPastExpectedPresentTimes.back() - expectedPresentTime);
         if (phase > 0ns) {
             for (auto& timeline : mTimelines) {
-                timeline.shiftVsyncSequence(phase);
+                timeline.shiftVsyncSequence(phase, minFramePeriod);
             }
             mPastExpectedPresentTimes.clear();
             return phase;
@@ -487,13 +487,13 @@
     return 0ns;
 }
 
-void VSyncPredictor::onFrameBegin(TimePoint expectedPresentTime,
-                                  TimePoint lastConfirmedPresentTime) {
+void VSyncPredictor::onFrameBegin(TimePoint expectedPresentTime, FrameTime lastSignaledFrameTime) {
     SFTRACE_NAME("VSyncPredictor::onFrameBegin");
     std::lock_guard lock(mMutex);
 
     if (!mDisplayModePtr->getVrrConfig()) return;
 
+    const auto [lastConfirmedPresentTime, lastConfirmedExpectedPresentTime] = lastSignaledFrameTime;
     if (CC_UNLIKELY(mTraceOn)) {
         SFTRACE_FORMAT_INSTANT("vsync is %.2f past last signaled fence",
                                static_cast<float>(expectedPresentTime.ns() -
@@ -519,6 +519,11 @@
         }
     }
 
+    if (lastConfirmedExpectedPresentTime.ns() - lastConfirmedPresentTime.ns() > threshold) {
+        SFTRACE_FORMAT_INSTANT("lastFramePresentedEarly");
+        return;
+    }
+
     const auto phase = ensureMinFrameDurationIsKept(expectedPresentTime, lastConfirmedPresentTime);
     if (phase > 0ns) {
         mMissedVsync = {expectedPresentTime, minFramePeriodLocked()};
@@ -773,8 +778,15 @@
     return vsyncSequence.seq % divisor == 0;
 }
 
-void VSyncPredictor::VsyncTimeline::shiftVsyncSequence(Duration phase) {
+void VSyncPredictor::VsyncTimeline::shiftVsyncSequence(Duration phase, Period minFramePeriod) {
     if (mLastVsyncSequence) {
+        const auto renderRate = mRenderRateOpt.value_or(Fps::fromPeriodNsecs(mIdealPeriod.ns()));
+        const auto threshold = mIdealPeriod.ns() / 2;
+        if (renderRate.getPeriodNsecs() - phase.ns() + threshold >= minFramePeriod.ns()) {
+            SFTRACE_FORMAT_INSTANT("Not-Adjusting vsync by %.2f",
+                                   static_cast<float>(phase.ns()) / 1e6f);
+            return;
+        }
         SFTRACE_FORMAT_INSTANT("adjusting vsync by %.2f", static_cast<float>(phase.ns()) / 1e6f);
         mLastVsyncSequence->vsyncTime += phase.ns();
     }
diff --git a/services/surfaceflinger/Scheduler/VSyncPredictor.h b/services/surfaceflinger/Scheduler/VSyncPredictor.h
index 64e1029..6c8a2f2 100644
--- a/services/surfaceflinger/Scheduler/VSyncPredictor.h
+++ b/services/surfaceflinger/Scheduler/VSyncPredictor.h
@@ -22,6 +22,7 @@
 #include <vector>
 
 #include <android-base/thread_annotations.h>
+#include <scheduler/FrameTime.h>
 #include <scheduler/TimeKeeper.h>
 #include <ui/DisplayId.h>
 
@@ -77,7 +78,7 @@
 
     void setRenderRate(Fps, bool applyImmediately) final EXCLUDES(mMutex);
 
-    void onFrameBegin(TimePoint expectedPresentTime, TimePoint lastConfirmedPresentTime) final
+    void onFrameBegin(TimePoint expectedPresentTime, FrameTime lastSignaledFrameTime) final
             EXCLUDES(mMutex);
     void onFrameMissed(TimePoint expectedPresentTime) final EXCLUDES(mMutex);
 
@@ -103,7 +104,7 @@
         void freeze(TimePoint lastVsync);
         std::optional<TimePoint> validUntil() const { return mValidUntil; }
         bool isVSyncInPhase(Model, nsecs_t vsync, Fps frameRate);
-        void shiftVsyncSequence(Duration phase);
+        void shiftVsyncSequence(Duration phase, Period minFramePeriod);
         void setRenderRate(std::optional<Fps> renderRateOpt) { mRenderRateOpt = renderRateOpt; }
 
         enum class VsyncOnTimeline {
diff --git a/services/surfaceflinger/Scheduler/VSyncTracker.h b/services/surfaceflinger/Scheduler/VSyncTracker.h
index 134d28e..3376fad 100644
--- a/services/surfaceflinger/Scheduler/VSyncTracker.h
+++ b/services/surfaceflinger/Scheduler/VSyncTracker.h
@@ -21,6 +21,7 @@
 
 #include <scheduler/Fps.h>
 #include <scheduler/FrameRateMode.h>
+#include <scheduler/FrameTime.h>
 
 #include "VSyncDispatch.h"
 
@@ -112,8 +113,7 @@
      */
     virtual void setRenderRate(Fps, bool applyImmediately) = 0;
 
-    virtual void onFrameBegin(TimePoint expectedPresentTime,
-                              TimePoint lastConfirmedPresentTime) = 0;
+    virtual void onFrameBegin(TimePoint expectedPresentTime, FrameTime lastSignaledFrameTime) = 0;
 
     virtual void onFrameMissed(TimePoint expectedPresentTime) = 0;
 
diff --git a/services/surfaceflinger/Scheduler/include/scheduler/FrameTargeter.h b/services/surfaceflinger/Scheduler/include/scheduler/FrameTargeter.h
index d37d2dc..2185bb0 100644
--- a/services/surfaceflinger/Scheduler/include/scheduler/FrameTargeter.h
+++ b/services/surfaceflinger/Scheduler/include/scheduler/FrameTargeter.h
@@ -26,6 +26,7 @@
 #include <ui/FenceTime.h>
 
 #include <scheduler/Features.h>
+#include <scheduler/FrameTime.h>
 #include <scheduler/Time.h>
 #include <scheduler/VsyncId.h>
 #include <scheduler/interface/CompositeResult.h>
@@ -54,31 +55,20 @@
 
     std::optional<TimePoint> earliestPresentTime() const { return mEarliestPresentTime; }
 
-    // The time of the VSYNC that preceded this frame. See `presentFenceForPastVsync` for details.
-    TimePoint pastVsyncTime(Period minFramePeriod) const;
-
-    // The present fence for the frame that had targeted the most recent VSYNC before this frame.
-    // If the target VSYNC for any given frame is more than `vsyncPeriod` in the future, then the
-    // VSYNC of at least one previous frame has not yet passed. In other words, this is NOT the
-    // `presentFenceForPreviousFrame` if running N VSYNCs ahead, but the one that should have been
-    // signaled by now (unless that frame missed).
-    FenceTimePtr presentFenceForPastVsync(Period minFramePeriod) const;
-
-    // Equivalent to `presentFenceForPastVsync` unless running N VSYNCs ahead.
-    const FenceTimePtr& presentFenceForPreviousFrame() const {
-        return mPresentFences.front().fenceTime;
-    }
+    // Equivalent to `expectedSignaledPresentFence` unless running N VSYNCs ahead.
+    const FenceTimePtr& presentFenceForPreviousFrame() const;
 
     bool isFramePending() const { return mFramePending; }
+    bool wouldBackpressureHwc() const { return mWouldBackpressureHwc; }
     bool didMissFrame() const { return mFrameMissed; }
     bool didMissHwcFrame() const { return mHwcFrameMissed && !mGpuFrameMissed; }
-    TimePoint lastSignaledFrameTime() const { return mLastSignaledFrameTime; };
+    FrameTime lastSignaledFrameTime() const { return mLastSignaledFrameTime; }
 
 protected:
     explicit FrameTarget(const std::string& displayLabel);
     ~FrameTarget() = default;
 
-    bool wouldPresentEarly(Period minFramePeriod) const;
+    bool wouldPresentEarly(Period vsyncPeriod, Period minFramePeriod) const;
 
     // Equivalent to `pastVsyncTime` unless running N VSYNCs ahead.
     TimePoint previousFrameVsyncTime(Period minFramePeriod) const {
@@ -87,8 +77,7 @@
 
     void addFence(sp<Fence> presentFence, FenceTimePtr presentFenceTime,
                   TimePoint expectedPresentTime) {
-        mFenceWithFenceTimes.next() = {std::move(presentFence), presentFenceTime,
-                                       expectedPresentTime};
+        mPresentFences.next() = {std::move(presentFence), presentFenceTime, expectedPresentTime};
     }
 
     VsyncId mVsyncId;
@@ -100,16 +89,25 @@
     TracedOrdinal<bool> mFrameMissed;
     TracedOrdinal<bool> mHwcFrameMissed;
     TracedOrdinal<bool> mGpuFrameMissed;
+    bool mWouldBackpressureHwc = false;
 
-    struct FenceWithFenceTime {
+    struct PresentFence {
         sp<Fence> fence = Fence::NO_FENCE;
         FenceTimePtr fenceTime = FenceTime::NO_FENCE;
         TimePoint expectedPresentTime = TimePoint();
     };
-    std::array<FenceWithFenceTime, 2> mPresentFences;
-    utils::RingBuffer<FenceWithFenceTime, 5> mFenceWithFenceTimes;
 
-    TimePoint mLastSignaledFrameTime;
+    // The present fence for the frame that had targeted the most recent VSYNC before this frame.
+    // If the target VSYNC for any given frame is more than `vsyncPeriod` in the future, then the
+    // VSYNC of at least one previous frame has not yet passed. In other words, this is NOT the
+    // `presentFenceForPreviousFrame` if running N VSYNCs ahead, but the one that should have been
+    // signaled by now (unless that frame missed).
+    std::pair<bool /* wouldBackpressure */, PresentFence> expectedSignaledPresentFence(
+            Period vsyncPeriod, Period minFramePeriod) const;
+    std::array<PresentFence, 2> mPresentFencesLegacy;
+    utils::RingBuffer<PresentFence, 5> mPresentFences;
+
+    FrameTime mLastSignaledFrameTime;
 
 private:
     friend class FrameTargeterTestBase;
@@ -119,18 +117,6 @@
         static_assert(N > 1);
         return expectedFrameDuration() > (N - 1) * minFramePeriod;
     }
-
-    const FenceTimePtr pastVsyncTimePtr() const {
-        auto pastFenceTimePtr = FenceTime::NO_FENCE;
-        for (size_t i = 0; i < mFenceWithFenceTimes.size(); i++) {
-            const auto& [_, fenceTimePtr, expectedPresentTime] = mFenceWithFenceTimes[i];
-            if (expectedPresentTime > mFrameBeginTime) {
-                return pastFenceTimePtr;
-            }
-            pastFenceTimePtr = fenceTimePtr;
-        }
-        return pastFenceTimePtr;
-    }
 };
 
 // Computes a display's per-frame metrics about past/upcoming targeting of present deadlines.
@@ -153,7 +139,7 @@
 
     void beginFrame(const BeginFrameArgs&, const IVsyncSource&);
 
-    std::optional<TimePoint> computeEarliestPresentTime(Period minFramePeriod,
+    std::optional<TimePoint> computeEarliestPresentTime(Period vsyncPeriod, Period minFramePeriod,
                                                         Duration hwcMinWorkDuration);
 
     // TODO(b/241285191): Merge with FrameTargeter::endFrame.
diff --git a/services/surfaceflinger/Scheduler/include/scheduler/FrameTime.h b/services/surfaceflinger/Scheduler/include/scheduler/FrameTime.h
new file mode 100644
index 0000000..ed5c899
--- /dev/null
+++ b/services/surfaceflinger/Scheduler/include/scheduler/FrameTime.h
@@ -0,0 +1,26 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <scheduler/Time.h>
+
+namespace android::scheduler {
+struct FrameTime {
+    TimePoint signalTime;
+    TimePoint expectedPresentTime;
+};
+} // namespace android::scheduler
\ No newline at end of file
diff --git a/services/surfaceflinger/Scheduler/src/FrameTargeter.cpp b/services/surfaceflinger/Scheduler/src/FrameTargeter.cpp
index 60694b9..8adf2a6 100644
--- a/services/surfaceflinger/Scheduler/src/FrameTargeter.cpp
+++ b/services/surfaceflinger/Scheduler/src/FrameTargeter.cpp
@@ -18,8 +18,10 @@
 #include <common/trace.h>
 #include <scheduler/FrameTargeter.h>
 #include <scheduler/IVsyncSource.h>
+#include <utils/Log.h>
 
 namespace android::scheduler {
+using namespace std::chrono_literals;
 
 FrameTarget::FrameTarget(const std::string& displayLabel)
       : mFramePending("PrevFramePending " + displayLabel, false),
@@ -27,32 +29,50 @@
         mHwcFrameMissed("PrevHwcFrameMissed " + displayLabel, false),
         mGpuFrameMissed("PrevGpuFrameMissed " + displayLabel, false) {}
 
-TimePoint FrameTarget::pastVsyncTime(Period minFramePeriod) const {
-    // TODO(b/267315508): Generalize to N VSYNCs.
-    const int shift = static_cast<int>(targetsVsyncsAhead<2>(minFramePeriod));
-    return mExpectedPresentTime - Period::fromNs(minFramePeriod.ns() << shift);
-}
-
-FenceTimePtr FrameTarget::presentFenceForPastVsync(Period minFramePeriod) const {
-    if (FlagManager::getInstance().allow_n_vsyncs_in_targeter()) {
-        return pastVsyncTimePtr();
+std::pair<bool /* wouldBackpressure */, FrameTarget::PresentFence>
+FrameTarget::expectedSignaledPresentFence(Period vsyncPeriod, Period minFramePeriod) const {
+    if (!FlagManager::getInstance().allow_n_vsyncs_in_targeter()) {
+        const size_t i = static_cast<size_t>(targetsVsyncsAhead<2>(minFramePeriod));
+        return {true, mPresentFencesLegacy[i]};
     }
-    const size_t i = static_cast<size_t>(targetsVsyncsAhead<2>(minFramePeriod));
-    return mPresentFences[i].fenceTime;
+
+    bool wouldBackpressure = true;
+    auto expectedPresentTime = mExpectedPresentTime;
+    for (size_t i = mPresentFences.size(); i != 0; --i) {
+        const auto& fence = mPresentFences[i - 1];
+
+        if (fence.expectedPresentTime + minFramePeriod < expectedPresentTime - vsyncPeriod / 2) {
+            wouldBackpressure = false;
+        }
+
+        if (fence.expectedPresentTime <= mFrameBeginTime) {
+            return {wouldBackpressure, fence};
+        }
+
+        expectedPresentTime = fence.expectedPresentTime;
+    }
+    return {wouldBackpressure, PresentFence{}};
 }
 
-bool FrameTarget::wouldPresentEarly(Period minFramePeriod) const {
-    // TODO(b/241285475): Since this is called during `composite`, the calls to `targetsVsyncsAhead`
-    // should use `TimePoint::now()` in case of delays since `mFrameBeginTime`.
-
-    // TODO(b/267315508): Generalize to N VSYNCs.
-    const bool allowNVsyncs = FlagManager::getInstance().allow_n_vsyncs_in_targeter();
-    if (!allowNVsyncs && targetsVsyncsAhead<3>(minFramePeriod)) {
+bool FrameTarget::wouldPresentEarly(Period vsyncPeriod, Period minFramePeriod) const {
+    if (targetsVsyncsAhead<3>(minFramePeriod)) {
         return true;
     }
 
-    const auto fence = presentFenceForPastVsync(minFramePeriod);
-    return fence->isValid() && fence->getSignalTime() != Fence::SIGNAL_TIME_PENDING;
+    const auto [wouldBackpressure, fence] =
+            expectedSignaledPresentFence(vsyncPeriod, minFramePeriod);
+
+    return !wouldBackpressure ||
+            (fence.fenceTime->isValid() &&
+             fence.fenceTime->getSignalTime() != Fence::SIGNAL_TIME_PENDING);
+}
+
+const FenceTimePtr& FrameTarget::presentFenceForPreviousFrame() const {
+    if (FlagManager::getInstance().allow_n_vsyncs_in_targeter()) {
+        return mPresentFences.back().fenceTime;
+    }
+
+    return mPresentFencesLegacy.front().fenceTime;
 }
 
 void FrameTargeter::beginFrame(const BeginFrameArgs& args, const IVsyncSource& vsyncSource) {
@@ -86,27 +106,39 @@
     }
 
     if (!mSupportsExpectedPresentTime) {
-        mEarliestPresentTime = computeEarliestPresentTime(minFramePeriod, args.hwcMinWorkDuration);
+        mEarliestPresentTime =
+                computeEarliestPresentTime(vsyncPeriod, minFramePeriod, args.hwcMinWorkDuration);
     }
 
     SFTRACE_FORMAT("%s %" PRId64 " vsyncIn %.2fms%s", __func__, ftl::to_underlying(args.vsyncId),
                    ticks<std::milli, float>(mExpectedPresentTime - TimePoint::now()),
                    mExpectedPresentTime == args.expectedVsyncTime ? "" : " (adjusted)");
 
-    const FenceTimePtr& pastPresentFence = presentFenceForPastVsync(minFramePeriod);
+    const auto [wouldBackpressure, fence] =
+            expectedSignaledPresentFence(vsyncPeriod, minFramePeriod);
 
     // In cases where the present fence is about to fire, give it a small grace period instead of
     // giving up on the frame.
-    //
-    // TODO(b/280667110): The grace period should depend on `sfWorkDuration` and `vsyncPeriod` being
-    // approximately equal, not whether backpressure propagation is enabled.
-    const int graceTimeForPresentFenceMs = static_cast<int>(
-            mBackpressureGpuComposition || !mCompositionCoverage.test(CompositionCoverage::Gpu));
+    const int graceTimeForPresentFenceMs = [&] {
+        const bool considerBackpressure =
+                mBackpressureGpuComposition || !mCompositionCoverage.test(CompositionCoverage::Gpu);
+
+        if (!FlagManager::getInstance().allow_n_vsyncs_in_targeter()) {
+            return static_cast<int>(considerBackpressure);
+        }
+
+        if (!wouldBackpressure || !considerBackpressure) {
+            return 0;
+        }
+
+        return static_cast<int>((std::abs(fence.expectedPresentTime.ns() - mFrameBeginTime.ns()) <=
+                                 Duration(1ms).ns()));
+    }();
 
     // Pending frames may trigger backpressure propagation.
     const auto& isFencePending = *isFencePendingFuncPtr;
-    mFramePending = pastPresentFence != FenceTime::NO_FENCE &&
-            isFencePending(pastPresentFence, graceTimeForPresentFenceMs);
+    mFramePending = fence.fenceTime != FenceTime::NO_FENCE &&
+            isFencePending(fence.fenceTime, graceTimeForPresentFenceMs);
 
     // A frame is missed if the prior frame is still pending. If no longer pending, then we still
     // count the frame as missed if the predicted present time was further in the past than when the
@@ -114,9 +146,10 @@
     // than a typical frame duration, but should not be so small that it reports reasonable drift as
     // a missed frame.
     mFrameMissed = mFramePending || [&] {
-        const nsecs_t pastPresentTime = pastPresentFence->getSignalTime();
+        const nsecs_t pastPresentTime = fence.fenceTime->getSignalTime();
         if (pastPresentTime < 0) return false;
-        mLastSignaledFrameTime = TimePoint::fromNs(pastPresentTime);
+        mLastSignaledFrameTime = {.signalTime = TimePoint::fromNs(pastPresentTime),
+                                  .expectedPresentTime = fence.expectedPresentTime};
         const nsecs_t frameMissedSlop = vsyncPeriod.ns() / 2;
         return lastScheduledPresentTime.ns() < pastPresentTime - frameMissedSlop;
     }();
@@ -127,11 +160,14 @@
     if (mFrameMissed) mFrameMissedCount++;
     if (mHwcFrameMissed) mHwcFrameMissedCount++;
     if (mGpuFrameMissed) mGpuFrameMissedCount++;
+
+    mWouldBackpressureHwc = mFramePending && wouldBackpressure;
 }
 
-std::optional<TimePoint> FrameTargeter::computeEarliestPresentTime(Period minFramePeriod,
+std::optional<TimePoint> FrameTargeter::computeEarliestPresentTime(Period vsyncPeriod,
+                                                                   Period minFramePeriod,
                                                                    Duration hwcMinWorkDuration) {
-    if (wouldPresentEarly(minFramePeriod)) {
+    if (wouldPresentEarly(vsyncPeriod, minFramePeriod)) {
         return previousFrameVsyncTime(minFramePeriod) - hwcMinWorkDuration;
     }
     return {};
@@ -150,8 +186,8 @@
     if (FlagManager::getInstance().allow_n_vsyncs_in_targeter()) {
         addFence(std::move(presentFence), presentFenceTime, mExpectedPresentTime);
     } else {
-        mPresentFences[1] = mPresentFences[0];
-        mPresentFences[0] = {std::move(presentFence), presentFenceTime, mExpectedPresentTime};
+        mPresentFencesLegacy[1] = mPresentFencesLegacy[0];
+        mPresentFencesLegacy[0] = {std::move(presentFence), presentFenceTime, mExpectedPresentTime};
     }
     return presentFenceTime;
 }
diff --git a/services/surfaceflinger/Scheduler/tests/FrameTargeterTest.cpp b/services/surfaceflinger/Scheduler/tests/FrameTargeterTest.cpp
index 5448eec..6f4e1f1 100644
--- a/services/surfaceflinger/Scheduler/tests/FrameTargeterTest.cpp
+++ b/services/surfaceflinger/Scheduler/tests/FrameTargeterTest.cpp
@@ -53,8 +53,13 @@
 
     const auto& target() const { return mTargeter.target(); }
 
-    bool wouldPresentEarly(Period minFramePeriod) const {
-        return target().wouldPresentEarly(minFramePeriod);
+    bool wouldPresentEarly(Period vsyncPeriod, Period minFramePeriod) const {
+        return target().wouldPresentEarly(vsyncPeriod, minFramePeriod);
+    }
+
+    std::pair<bool /*wouldBackpressure*/, FrameTarget::PresentFence> expectedSignaledPresentFence(
+            Period vsyncPeriod, Period minFramePeriod) const {
+        return target().expectedSignaledPresentFence(vsyncPeriod, minFramePeriod);
     }
 
     struct Frame {
@@ -169,7 +174,6 @@
 }
 
 TEST_F(FrameTargeterTest, recallsPastVsync) {
-    SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, false);
     VsyncId vsyncId{111};
     TimePoint frameBeginTime(1000ms);
     constexpr Fps kRefreshRate = 60_Hz;
@@ -177,16 +181,72 @@
     constexpr Duration kFrameDuration = 13ms;
 
     for (int n = 5; n-- > 0;) {
-        Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
-        const auto fence = frame.end();
+        FenceTimePtr fence;
+        {
+            Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate,
+                        kRefreshRate);
+            fence = frame.end();
+        }
 
-        EXPECT_EQ(target().pastVsyncTime(kPeriod), frameBeginTime + kFrameDuration - kPeriod);
-        EXPECT_EQ(target().presentFenceForPastVsync(kPeriod), fence);
+        Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
+        const auto [wouldBackpressure, presentFence] =
+                expectedSignaledPresentFence(kPeriod, kPeriod);
+        ASSERT_TRUE(wouldBackpressure);
+        EXPECT_EQ(presentFence.fenceTime, fence);
+    }
+}
+
+TEST_F(FrameTargeterTest, wouldBackpressureAfterTime) {
+    SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, true);
+    VsyncId vsyncId{111};
+    TimePoint frameBeginTime(1000ms);
+    constexpr Fps kRefreshRate = 60_Hz;
+    constexpr Period kPeriod = kRefreshRate.getPeriod();
+    constexpr Duration kFrameDuration = 13ms;
+
+    { Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate); }
+    {
+        Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
+
+        const auto [wouldBackpressure, presentFence] =
+                expectedSignaledPresentFence(kPeriod, kPeriod);
+        EXPECT_TRUE(wouldBackpressure);
+    }
+    {
+        frameBeginTime += kPeriod;
+        Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
+        const auto [wouldBackpressure, presentFence] =
+                expectedSignaledPresentFence(kPeriod, kPeriod);
+        EXPECT_FALSE(wouldBackpressure);
+    }
+}
+
+TEST_F(FrameTargeterTest, wouldBackpressureAfterTimeLegacy) {
+    SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, false);
+    VsyncId vsyncId{111};
+    TimePoint frameBeginTime(1000ms);
+    constexpr Fps kRefreshRate = 60_Hz;
+    constexpr Period kPeriod = kRefreshRate.getPeriod();
+    constexpr Duration kFrameDuration = 13ms;
+
+    { Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate); }
+    {
+        Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
+
+        const auto [wouldBackpressure, presentFence] =
+                expectedSignaledPresentFence(kPeriod, kPeriod);
+        EXPECT_TRUE(wouldBackpressure);
+    }
+    {
+        frameBeginTime += kPeriod;
+        Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
+        const auto [wouldBackpressure, presentFence] =
+                expectedSignaledPresentFence(kPeriod, kPeriod);
+        EXPECT_TRUE(wouldBackpressure);
     }
 }
 
 TEST_F(FrameTargeterTest, recallsPastVsyncTwoVsyncsAhead) {
-    SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, false);
     VsyncId vsyncId{222};
     TimePoint frameBeginTime(2000ms);
     constexpr Fps kRefreshRate = 120_Hz;
@@ -194,101 +254,66 @@
     constexpr Duration kFrameDuration = 10ms;
 
     FenceTimePtr previousFence = FenceTime::NO_FENCE;
-
+    FenceTimePtr currentFence = FenceTime::NO_FENCE;
     for (int n = 5; n-- > 0;) {
         Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
-        const auto fence = frame.end();
-
-        EXPECT_EQ(target().pastVsyncTime(kPeriod), frameBeginTime + kFrameDuration - 2 * kPeriod);
-        EXPECT_EQ(target().presentFenceForPastVsync(kPeriod), previousFence);
-
-        previousFence = fence;
+        EXPECT_EQ(expectedSignaledPresentFence(kPeriod, kPeriod).second.fenceTime, previousFence);
+        previousFence = currentFence;
+        currentFence = frame.end();
     }
 }
 
-TEST_F(FrameTargeterTest, recallsPastNVsyncTwoVsyncsAhead) {
+TEST_F(FrameTargeterTest, recallsPastVsyncFiveVsyncsAhead) {
     SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, true);
+
     VsyncId vsyncId{222};
     TimePoint frameBeginTime(2000ms);
     constexpr Fps kRefreshRate = 120_Hz;
     constexpr Period kPeriod = kRefreshRate.getPeriod();
-    constexpr Duration kFrameDuration = 10ms;
+    constexpr Duration kFrameDuration = 40ms;
 
-    FenceTimePtr previousFence = FenceTime::NO_FENCE;
-
+    FenceTimePtr firstFence = FenceTime::NO_FENCE;
     for (int n = 5; n-- > 0;) {
         Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
         const auto fence = frame.end();
-
-        const auto pastVsyncTime = frameBeginTime + kFrameDuration - 2 * kPeriod;
-        EXPECT_EQ(target().pastVsyncTime(kPeriod), pastVsyncTime);
-        EXPECT_EQ(target().presentFenceForPastVsync(kFrameDuration), previousFence);
-
-        frameBeginTime += kPeriod;
-        previousFence = fence;
+        if (firstFence == FenceTime::NO_FENCE) {
+            firstFence = fence;
+        }
     }
+
+    Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
+    EXPECT_EQ(expectedSignaledPresentFence(kPeriod, kPeriod).second.fenceTime, firstFence);
 }
 
 TEST_F(FrameTargeterTest, recallsPastVsyncTwoVsyncsAheadVrr) {
     SET_FLAG_FOR_TEST(flags::vrr_config, true);
-    SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, false);
 
     VsyncId vsyncId{222};
     TimePoint frameBeginTime(2000ms);
     constexpr Fps kRefreshRate = 120_Hz;
-    constexpr Fps kPeakRefreshRate = 240_Hz;
+    constexpr Fps kVsyncRate = 240_Hz;
     constexpr Period kPeriod = kRefreshRate.getPeriod();
+    constexpr Period kVsyncPeriod = kVsyncRate.getPeriod();
     constexpr Duration kFrameDuration = 10ms;
 
     FenceTimePtr previousFence = FenceTime::NO_FENCE;
-
+    FenceTimePtr currentFence = FenceTime::NO_FENCE;
     for (int n = 5; n-- > 0;) {
-        Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate,
-                    kPeakRefreshRate);
-        const auto fence = frame.end();
-
-        EXPECT_EQ(target().pastVsyncTime(kPeriod), frameBeginTime + kFrameDuration - 2 * kPeriod);
-        EXPECT_EQ(target().presentFenceForPastVsync(kPeriod), previousFence);
-
-        previousFence = fence;
-    }
-}
-
-TEST_F(FrameTargeterTest, recallsPastNVsyncTwoVsyncsAheadVrr) {
-    SET_FLAG_FOR_TEST(flags::vrr_config, true);
-    SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, true);
-
-    VsyncId vsyncId{222};
-    TimePoint frameBeginTime(2000ms);
-    constexpr Fps kRefreshRate = 120_Hz;
-    constexpr Fps kPeakRefreshRate = 240_Hz;
-    constexpr Period kPeriod = kRefreshRate.getPeriod();
-    constexpr Duration kFrameDuration = 10ms;
-
-    FenceTimePtr previousFence = FenceTime::NO_FENCE;
-
-    for (int n = 5; n-- > 0;) {
-        Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate,
-                    kPeakRefreshRate);
-        const auto fence = frame.end();
-
-        const auto pastVsyncTime = frameBeginTime + kFrameDuration - 2 * kPeriod;
-        EXPECT_EQ(target().pastVsyncTime(kPeriod), pastVsyncTime);
-        EXPECT_EQ(target().presentFenceForPastVsync(kFrameDuration), previousFence);
-
-        frameBeginTime += kPeriod;
-        previousFence = fence;
+        Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
+        EXPECT_EQ(expectedSignaledPresentFence(kVsyncPeriod, kPeriod).second.fenceTime,
+                  previousFence);
+        previousFence = currentFence;
+        currentFence = frame.end();
     }
 }
 
 TEST_F(FrameTargeterTest, doesNotDetectEarlyPresentIfNoFence) {
     constexpr Period kPeriod = (60_Hz).getPeriod();
-    EXPECT_EQ(target().presentFenceForPastVsync(kPeriod), FenceTime::NO_FENCE);
-    EXPECT_FALSE(wouldPresentEarly(kPeriod));
+    EXPECT_EQ(expectedSignaledPresentFence(kPeriod, kPeriod).second.fenceTime, FenceTime::NO_FENCE);
+    EXPECT_FALSE(wouldPresentEarly(kPeriod, kPeriod));
 }
 
 TEST_F(FrameTargeterTest, detectsEarlyPresent) {
-    SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, false);
     VsyncId vsyncId{333};
     TimePoint frameBeginTime(3000ms);
     constexpr Fps kRefreshRate = 60_Hz;
@@ -296,20 +321,57 @@
 
     // The target is not early while past present fences are pending.
     for (int n = 3; n-- > 0;) {
-        const Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
-        EXPECT_FALSE(wouldPresentEarly(kPeriod));
+        {
+            const Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
+        }
+        EXPECT_FALSE(wouldPresentEarly(kPeriod, kPeriod));
         EXPECT_FALSE(target().earliestPresentTime());
     }
 
     // The target is early if the past present fence was signaled.
-    Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
-    const auto fence = frame.end();
-    fence->signalForTest(frameBeginTime.ns());
+    {
+        Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
+        const auto fence = frame.end();
+        fence->signalForTest(frameBeginTime.ns());
+    }
 
     Frame finalFrame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
 
     // `finalFrame` would present early, so it has an earliest present time.
-    EXPECT_TRUE(wouldPresentEarly(kPeriod));
+    EXPECT_TRUE(wouldPresentEarly(kPeriod, kPeriod));
+    ASSERT_NE(std::nullopt, target().earliestPresentTime());
+    EXPECT_EQ(*target().earliestPresentTime(),
+              target().expectedPresentTime() - kPeriod - kHwcMinWorkDuration);
+}
+
+TEST_F(FrameTargeterTest, detectsEarlyPresentAfterLongPeriod) {
+    VsyncId vsyncId{333};
+    TimePoint frameBeginTime(3000ms);
+    constexpr Fps kRefreshRate = 60_Hz;
+    constexpr Period kPeriod = kRefreshRate.getPeriod();
+
+    // The target is not early while past present fences are pending.
+    for (int n = 3; n-- > 0;) {
+        {
+            const Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
+        }
+        EXPECT_FALSE(wouldPresentEarly(kPeriod, kPeriod));
+        EXPECT_FALSE(target().earliestPresentTime());
+    }
+
+    // The target is early if the past present fence was signaled.
+    {
+        Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
+        const auto fence = frame.end();
+        fence->signalForTest(frameBeginTime.ns());
+    }
+
+    frameBeginTime += 10 * kPeriod;
+
+    Frame finalFrame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
+
+    // `finalFrame` would present early, so it has an earliest present time.
+    EXPECT_TRUE(wouldPresentEarly(kPeriod, kPeriod));
     ASSERT_NE(std::nullopt, target().earliestPresentTime());
     EXPECT_EQ(*target().earliestPresentTime(),
               target().expectedPresentTime() - kPeriod - kHwcMinWorkDuration);
@@ -318,7 +380,6 @@
 // Same as `detectsEarlyPresent`, above, but verifies that we do not set an earliest present time
 // when there is expected present time support.
 TEST_F(FrameTargeterWithExpectedPresentSupportTest, detectsEarlyPresent) {
-    SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, false);
     VsyncId vsyncId{333};
     TimePoint frameBeginTime(3000ms);
     constexpr Fps kRefreshRate = 60_Hz;
@@ -326,26 +387,30 @@
 
     // The target is not early while past present fences are pending.
     for (int n = 3; n-- > 0;) {
-        const Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
-        EXPECT_FALSE(wouldPresentEarly(kPeriod));
+        {
+            const Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
+        }
+        EXPECT_FALSE(wouldPresentEarly(kPeriod, kPeriod));
         EXPECT_FALSE(target().earliestPresentTime());
     }
 
     // The target is early if the past present fence was signaled.
-    Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
-    const auto fence = frame.end();
-    fence->signalForTest(frameBeginTime.ns());
+    {
+        Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
+
+        const auto fence = frame.end();
+        fence->signalForTest(frameBeginTime.ns());
+    }
 
     Frame finalFrame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
 
     // `finalFrame` would present early, but we have expected present time support, so it has no
     // earliest present time.
-    EXPECT_TRUE(wouldPresentEarly(kPeriod));
+    EXPECT_TRUE(wouldPresentEarly(kPeriod, kPeriod));
     ASSERT_EQ(std::nullopt, target().earliestPresentTime());
 }
 
 TEST_F(FrameTargeterTest, detectsEarlyPresentTwoVsyncsAhead) {
-    SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, false);
     VsyncId vsyncId{444};
     TimePoint frameBeginTime(4000ms);
     constexpr Fps kRefreshRate = 120_Hz;
@@ -353,17 +418,21 @@
 
     // The target is not early while past present fences are pending.
     for (int n = 3; n-- > 0;) {
-        const Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
-        EXPECT_FALSE(wouldPresentEarly(kPeriod));
+        {
+            const Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
+        }
+        EXPECT_FALSE(wouldPresentEarly(kPeriod, kPeriod));
         EXPECT_FALSE(target().earliestPresentTime());
     }
+    {
+        Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
 
-    Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
-    const auto fence = frame.end();
-    fence->signalForTest(frameBeginTime.ns());
+        const auto fence = frame.end();
+        fence->signalForTest(frameBeginTime.ns());
+    }
 
     // The target is two VSYNCs ahead, so the past present fence is still pending.
-    EXPECT_FALSE(wouldPresentEarly(kPeriod));
+    EXPECT_FALSE(wouldPresentEarly(kPeriod, kPeriod));
     EXPECT_FALSE(target().earliestPresentTime());
 
     { const Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate); }
@@ -371,66 +440,21 @@
     Frame finalFrame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
 
     // The target is early if the past present fence was signaled.
-    EXPECT_TRUE(wouldPresentEarly(kPeriod));
+    EXPECT_TRUE(wouldPresentEarly(kPeriod, kPeriod));
     ASSERT_NE(std::nullopt, target().earliestPresentTime());
     EXPECT_EQ(*target().earliestPresentTime(),
               target().expectedPresentTime() - kPeriod - kHwcMinWorkDuration);
 }
 
-TEST_F(FrameTargeterTest, detectsEarlyPresentNVsyncsAhead) {
-    SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, true);
-    VsyncId vsyncId{444};
-    TimePoint frameBeginTime(4000ms);
-    Fps refreshRate = 120_Hz;
-    Period period = refreshRate.getPeriod();
-
-    // The target is not early while past present fences are pending.
-    for (int n = 5; n-- > 0;) {
-        const Frame frame(this, vsyncId++, frameBeginTime, 10ms, refreshRate, refreshRate);
-        EXPECT_FALSE(wouldPresentEarly(period));
-        EXPECT_FALSE(target().earliestPresentTime());
-    }
-
-    Frame frame(this, vsyncId++, frameBeginTime, 10ms, refreshRate, refreshRate);
-    auto fence = frame.end();
-    frameBeginTime += period;
-    fence->signalForTest(frameBeginTime.ns());
-
-    // The target is two VSYNCs ahead, so the past present fence is still pending.
-    EXPECT_FALSE(wouldPresentEarly(period));
-    EXPECT_FALSE(target().earliestPresentTime());
-
-    { const Frame frame(this, vsyncId++, frameBeginTime, 10ms, refreshRate, refreshRate); }
-
-    Frame oneEarlyPresentFrame(this, vsyncId++, frameBeginTime, 10ms, refreshRate, refreshRate);
-    // The target is early if the past present fence was signaled.
-    EXPECT_TRUE(wouldPresentEarly(period));
-    ASSERT_NE(std::nullopt, target().earliestPresentTime());
-    EXPECT_EQ(*target().earliestPresentTime(),
-              target().expectedPresentTime() - period - kHwcMinWorkDuration);
-
-    fence = oneEarlyPresentFrame.end();
-    frameBeginTime += period;
-    fence->signalForTest(frameBeginTime.ns());
-
-    // Change rate to track frame more than 2 vsyncs ahead
-    refreshRate = 144_Hz;
-    period = refreshRate.getPeriod();
-    Frame onePresentEarlyFrame(this, vsyncId++, frameBeginTime, 16ms, refreshRate, refreshRate);
-    // The target is not early as last frame as the past frame is tracked for pending.
-    EXPECT_FALSE(wouldPresentEarly(period));
-}
-
 TEST_F(FrameTargeterTest, detectsEarlyPresentThreeVsyncsAhead) {
-    SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, false);
     TimePoint frameBeginTime(5000ms);
     constexpr Fps kRefreshRate = 144_Hz;
     constexpr Period kPeriod = kRefreshRate.getPeriod();
 
-    const Frame frame(this, VsyncId{555}, frameBeginTime, 16ms, kRefreshRate, kRefreshRate);
+    { const Frame frame(this, VsyncId{555}, frameBeginTime, 16ms, kRefreshRate, kRefreshRate); }
 
     // The target is more than two VSYNCs ahead, but present fences are not tracked that far back.
-    EXPECT_TRUE(wouldPresentEarly(kPeriod));
+    EXPECT_TRUE(wouldPresentEarly(kPeriod, kPeriod));
     EXPECT_TRUE(target().earliestPresentTime());
     EXPECT_EQ(*target().earliestPresentTime(),
               target().expectedPresentTime() - kPeriod - kHwcMinWorkDuration);
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 1d35730..2275165 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -73,7 +73,7 @@
 #include <gui/Surface.h>
 #include <gui/SurfaceComposerClient.h>
 #include <hidl/ServiceManagement.h>
-#include <layerproto/LayerProtoParser.h>
+#include <layerproto/LayerProtoHeader.h>
 #include <linux/sched/types.h>
 #include <log/log.h>
 #include <private/android_filesystem_config.h>
@@ -534,9 +534,6 @@
 
     mIgnoreHdrCameraLayers = ignore_hdr_camera_layers(false);
 
-    mLayerLifecycleManagerEnabled =
-            base::GetBoolProperty("persist.debug.sf.enable_layer_lifecycle_manager"s, true);
-
     // These are set by the HWC implementation to indicate that they will use the workarounds.
     mIsHotplugErrViaNegVsync =
             base::GetBoolProperty("debug.sf.hwc_hotplug_error_via_neg_vsync"s, false);
@@ -914,9 +911,11 @@
     LOG_ALWAYS_FATAL_IF(!configureLocked(),
                         "Initial display configuration failed: HWC did not hotplug");
 
+    mActiveDisplayId = getPrimaryDisplayIdLocked();
+
     // Commit primary display.
     sp<const DisplayDevice> display;
-    if (const auto indexOpt = mCurrentState.getDisplayIndex(getPrimaryDisplayIdLocked())) {
+    if (const auto indexOpt = mCurrentState.getDisplayIndex(mActiveDisplayId)) {
         const auto& displays = mCurrentState.displays;
 
         const auto& token = displays.keyAt(*indexOpt);
@@ -2164,12 +2163,12 @@
     return mScheduler->createDisplayEventConnection(cycle, eventRegistration, layerHandle);
 }
 
-void SurfaceFlinger::scheduleCommit(FrameHint hint) {
+void SurfaceFlinger::scheduleCommit(FrameHint hint, Duration workDurationSlack) {
     if (hint == FrameHint::kActive) {
         mScheduler->resetIdleTimer();
     }
     mPowerAdvisor->notifyDisplayUpdateImminentAndCpuReset();
-    mScheduler->scheduleFrame();
+    mScheduler->scheduleFrame(workDurationSlack);
 }
 
 void SurfaceFlinger::scheduleComposite(FrameHint hint) {
@@ -2309,37 +2308,6 @@
     }
 }
 
-bool SurfaceFlinger::updateLayerSnapshotsLegacy(VsyncId vsyncId, nsecs_t frameTimeNs,
-                                                bool flushTransactions,
-                                                bool& outTransactionsAreEmpty) {
-    SFTRACE_CALL();
-    frontend::Update update;
-    if (flushTransactions) {
-        update = flushLifecycleUpdates();
-        if (mTransactionTracing) {
-            mTransactionTracing->addCommittedTransactions(ftl::to_underlying(vsyncId), frameTimeNs,
-                                                          update, mFrontEndDisplayInfos,
-                                                          mFrontEndDisplayInfosChanged);
-        }
-    }
-
-    bool needsTraversal = false;
-    if (flushTransactions) {
-        needsTraversal |= commitMirrorDisplays(vsyncId);
-        needsTraversal |= commitCreatedLayers(vsyncId, update.layerCreatedStates);
-        needsTraversal |= applyTransactions(update.transactions, vsyncId);
-    }
-    outTransactionsAreEmpty = !needsTraversal;
-    const bool shouldCommit = (getTransactionFlags() & ~eTransactionFlushNeeded) || needsTraversal;
-    if (shouldCommit) {
-        commitTransactionsLegacy();
-    }
-
-    bool mustComposite = latchBuffers() || shouldCommit;
-    updateLayerGeometry();
-    return mustComposite;
-}
-
 void SurfaceFlinger::updateLayerHistory(nsecs_t now) {
     for (const auto& snapshot : mLayerSnapshotBuilder.getSnapshots()) {
         using Changes = frontend::RequestedLayerState::Changes;
@@ -2555,7 +2523,9 @@
         it->second->latchBufferImpl(unused, latchTime, bgColorOnly);
         newDataLatched = true;
 
-        mLayersWithQueuedFrames.emplace(it->second);
+        frontend::LayerSnapshot* snapshot = mLayerSnapshotBuilder.getSnapshot(it->second->sequence);
+        gui::GameMode gameMode = (snapshot) ? snapshot->gameMode : gui::GameMode::Unsupported;
+        mLayersWithQueuedFrames.emplace(it->second, gameMode);
         mLayersIdsWithQueuedFrames.emplace(it->second->sequence);
     }
 
@@ -2623,13 +2593,16 @@
         }
     }
 
-    if (pacesetterFrameTarget.isFramePending()) {
+    if (pacesetterFrameTarget.wouldBackpressureHwc()) {
         if (mBackpressureGpuComposition || pacesetterFrameTarget.didMissHwcFrame()) {
             if (FlagManager::getInstance().vrr_config()) {
                 mScheduler->getVsyncSchedule()->getTracker().onFrameMissed(
                         pacesetterFrameTarget.expectedPresentTime());
             }
-            scheduleCommit(FrameHint::kNone);
+            const Duration slack = FlagManager::getInstance().allow_n_vsyncs_in_targeter()
+                    ? TimePoint::now() - pacesetterFrameTarget.frameBeginTime()
+                    : Duration::fromNs(0);
+            scheduleCommit(FrameHint::kNone, slack);
             return false;
         }
     }
@@ -2676,11 +2649,8 @@
 
         const bool flushTransactions = clearTransactionFlags(eTransactionFlushNeeded);
         bool transactionsAreEmpty = false;
-        if (mLayerLifecycleManagerEnabled) {
-            mustComposite |=
-                    updateLayerSnapshots(vsyncId, pacesetterFrameTarget.frameBeginTime().ns(),
-                                         flushTransactions, transactionsAreEmpty);
-        }
+        mustComposite |= updateLayerSnapshots(vsyncId, pacesetterFrameTarget.frameBeginTime().ns(),
+                                              flushTransactions, transactionsAreEmpty);
 
         // Tell VsyncTracker that we are going to present this frame before scheduling
         // setTransactionFlags which will schedule another SF frame. This was if the tracker
@@ -2714,9 +2684,7 @@
         mUpdateAttachedChoreographer = false;
 
         Mutex::Autolock lock(mStateLock);
-        mScheduler->chooseRefreshRateForContent(mLayerLifecycleManagerEnabled
-                                                        ? &mLayerHierarchyBuilder.getHierarchy()
-                                                        : nullptr,
+        mScheduler->chooseRefreshRateForContent(&mLayerHierarchyBuilder.getHierarchy(),
                                                 updateAttachedChoreographer);
 
         if (FlagManager::getInstance().connected_display()) {
@@ -2786,16 +2754,12 @@
 
     const bool updateTaskMetadata = mCompositionEngine->getFeatureFlags().test(
             compositionengine::Feature::kSnapshotLayerMetadata);
-    if (updateTaskMetadata && (mVisibleRegionsDirty || mLayerMetadataSnapshotNeeded)) {
-        updateLayerMetadataSnapshot();
-        mLayerMetadataSnapshotNeeded = false;
-    }
 
     refreshArgs.bufferIdsToUncache = std::move(mBufferIdsToUncache);
 
     if (!FlagManager::getInstance().ce_fence_promise()) {
         refreshArgs.layersWithQueuedFrames.reserve(mLayersWithQueuedFrames.size());
-        for (auto& layer : mLayersWithQueuedFrames) {
+        for (auto& [layer, _] : mLayersWithQueuedFrames) {
             if (const auto& layerFE = layer->getCompositionEngineLayerFE())
                 refreshArgs.layersWithQueuedFrames.push_back(layerFE);
         }
@@ -2837,7 +2801,7 @@
     constexpr bool kCursorOnly = false;
     const auto layers = moveSnapshotsToCompositionArgs(refreshArgs, kCursorOnly);
 
-    if (mLayerLifecycleManagerEnabled && !mVisibleRegionsDirty) {
+    if (!mVisibleRegionsDirty) {
         for (const auto& [token, display] : FTL_FAKE_GUARD(mStateLock, mDisplays)) {
             auto compositionDisplay = display->getCompositionDisplay();
             if (!compositionDisplay->getState().isEnabled) continue;
@@ -2871,7 +2835,7 @@
         }
 
         refreshArgs.layersWithQueuedFrames.reserve(mLayersWithQueuedFrames.size());
-        for (auto& layer : mLayersWithQueuedFrames) {
+        for (auto& [layer, _] : mLayersWithQueuedFrames) {
             if (const auto& layerFE = layer->getCompositionEngineLayerFE()) {
                 refreshArgs.layersWithQueuedFrames.push_back(layerFE);
                 // Some layers are not displayed and do not yet have a future release fence
@@ -2921,6 +2885,9 @@
         // Now that the current frame has been presented above, PowerAdvisor needs the present time
         // of the previous frame (whose fence is signaled by now) to determine how long the HWC had
         // waited on that fence to retire before presenting.
+        // TODO(b/355238809) `presentFenceForPreviousFrame` might not always be signaled (e.g. on
+        // devices
+        //  where HWC does not block on the previous present fence). Revise this assumtion.
         const auto& previousPresentFence = pacesetterTarget.presentFenceForPreviousFrame();
 
         mPowerAdvisor->setSfPresentTiming(TimePoint::fromNs(previousPresentFence->getSignalTime()),
@@ -3008,21 +2975,6 @@
     return resultsPerDisplay;
 }
 
-void SurfaceFlinger::updateLayerGeometry() {
-    SFTRACE_CALL();
-
-    if (mVisibleRegionsDirty) {
-        computeLayerBounds();
-    }
-
-    for (auto& layer : mLayersPendingRefresh) {
-        Region visibleReg;
-        visibleReg.set(layer->getScreenBounds());
-        invalidateLayerStack(layer->getOutputFilter(), visibleReg);
-    }
-    mLayersPendingRefresh.clear();
-}
-
 bool SurfaceFlinger::isHdrLayer(const frontend::LayerSnapshot& snapshot) const {
     // Even though the camera layer may be using an HDR transfer function or otherwise be "HDR"
     // the device may need to avoid boosting the brightness as a result of these layers to
@@ -3189,10 +3141,10 @@
     }
     mLayersWithBuffersRemoved.clear();
 
-    for (const auto& layer: mLayersWithQueuedFrames) {
+    for (const auto& [layer, gameMode] : mLayersWithQueuedFrames) {
         layer->onCompositionPresented(pacesetterDisplay.get(),
                                       pacesetterGpuCompositionDoneFenceTime,
-                                      pacesetterPresentFenceTime, compositorTiming);
+                                      pacesetterPresentFenceTime, compositorTiming, gameMode);
         layer->releasePendingBuffer(presentTime.ns());
     }
 
@@ -3253,28 +3205,20 @@
                         }
                     };
 
-            if (mLayerLifecycleManagerEnabled) {
-                mLayerSnapshotBuilder.forEachVisibleSnapshot(
-                        [&, compositionDisplay = compositionDisplay](
-                                std::unique_ptr<frontend::LayerSnapshot>&
-                                        snapshot) FTL_FAKE_GUARD(kMainThreadContext) {
-                            auto it = mLegacyLayers.find(snapshot->sequence);
-                            LLOG_ALWAYS_FATAL_WITH_TRACE_IF(it == mLegacyLayers.end(),
-                                                            "Couldnt find layer object for %s",
-                                                            snapshot->getDebugString().c_str());
-                            auto& legacyLayer = it->second;
-                            sp<LayerFE> layerFe =
-                                    legacyLayer->getCompositionEngineLayerFE(snapshot->path);
+            mLayerSnapshotBuilder.forEachVisibleSnapshot(
+                    [&, compositionDisplay = compositionDisplay](
+                            std::unique_ptr<frontend::LayerSnapshot>& snapshot)
+                            FTL_FAKE_GUARD(kMainThreadContext) {
+                                auto it = mLegacyLayers.find(snapshot->sequence);
+                                LLOG_ALWAYS_FATAL_WITH_TRACE_IF(it == mLegacyLayers.end(),
+                                                                "Couldnt find layer object for %s",
+                                                                snapshot->getDebugString().c_str());
+                                auto& legacyLayer = it->second;
+                                sp<LayerFE> layerFe =
+                                        legacyLayer->getCompositionEngineLayerFE(snapshot->path);
 
-                            updateInfoFn(compositionDisplay, *snapshot, layerFe);
-                        });
-            } else {
-                mDrawingState.traverse([&, compositionDisplay = compositionDisplay](Layer* layer) {
-                    const auto layerFe = layer->getCompositionEngineLayerFE();
-                    const frontend::LayerSnapshot& snapshot = *layer->getLayerSnapshot();
-                    updateInfoFn(compositionDisplay, snapshot, layerFe);
-                });
-            }
+                                updateInfoFn(compositionDisplay, *snapshot, layerFe);
+                            });
             listener->dispatchHdrLayerInfo(info);
         }
     }
@@ -3320,9 +3264,8 @@
             if (!layer->hasTrustedPresentationListener()) {
                 return;
             }
-            const frontend::LayerSnapshot* snapshot = mLayerLifecycleManagerEnabled
-                    ? mLayerSnapshotBuilder.getSnapshot(layer->sequence)
-                    : layer->getLayerSnapshot();
+            const frontend::LayerSnapshot* snapshot =
+                    mLayerSnapshotBuilder.getSnapshot(layer->sequence);
             std::optional<const DisplayDevice*> displayOpt = std::nullopt;
             if (snapshot) {
                 displayOpt = layerStackToDisplay.get(snapshot->outputFilter.layerStack);
@@ -3344,36 +3287,6 @@
     logFrameStats(presentTime);
 }
 
-FloatRect SurfaceFlinger::getMaxDisplayBounds() {
-    const ui::Size maxSize = [this] {
-        ftl::FakeGuard guard(mStateLock);
-
-        // The LayerTraceGenerator tool runs without displays.
-        if (mDisplays.empty()) return ui::Size{5000, 5000};
-
-        return std::accumulate(mDisplays.begin(), mDisplays.end(), ui::kEmptySize,
-                               [](ui::Size size, const auto& pair) -> ui::Size {
-                                   const auto& display = pair.second;
-                                   return {std::max(size.getWidth(), display->getWidth()),
-                                           std::max(size.getHeight(), display->getHeight())};
-                               });
-    }();
-
-    // Ignore display bounds for now since they will be computed later. Use a large Rect bound
-    // to ensure it's bigger than an actual display will be.
-    const float xMax = maxSize.getWidth() * 10.f;
-    const float yMax = maxSize.getHeight() * 10.f;
-
-    return {-xMax, -yMax, xMax, yMax};
-}
-
-void SurfaceFlinger::computeLayerBounds() {
-    const FloatRect maxBounds = getMaxDisplayBounds();
-    for (const auto& layer : mDrawingState.layersSortedByZ) {
-        layer->computeBounds(maxBounds, ui::Transform(), 0.f /* shadowRadius */);
-    }
-}
-
 void SurfaceFlinger::commitTransactions() {
     SFTRACE_CALL();
     mDebugInTransaction = systemTime();
@@ -3387,28 +3300,6 @@
     mDebugInTransaction = 0;
 }
 
-void SurfaceFlinger::commitTransactionsLegacy() {
-    SFTRACE_CALL();
-
-    // Keep a copy of the drawing state (that is going to be overwritten
-    // by commitTransactionsLocked) outside of mStateLock so that the side
-    // effects of the State assignment don't happen with mStateLock held,
-    // which can cause deadlocks.
-    State drawingState(mDrawingState);
-
-    Mutex::Autolock lock(mStateLock);
-    mDebugInTransaction = systemTime();
-
-    // Here we're guaranteed that some transaction flags are set
-    // so we can call commitTransactionsLocked unconditionally.
-    // We clear the flags with mStateLock held to guarantee that
-    // mCurrentState won't change until the transaction is committed.
-    mScheduler->modulateVsync({}, &VsyncModulator::onTransactionCommit);
-    commitTransactionsLocked(clearTransactionFlags(eTransactionMask));
-
-    mDebugInTransaction = 0;
-}
-
 std::pair<DisplayModes, DisplayModePtr> SurfaceFlinger::loadDisplayModes(
         PhysicalDisplayId displayId) const {
     std::vector<HWComposer::HWCDisplayMode> hwcModes;
@@ -4047,13 +3938,6 @@
     // Commit display transactions.
     const bool displayTransactionNeeded = transactionFlags & eDisplayTransactionNeeded;
     mFrontEndDisplayInfosChanged = displayTransactionNeeded;
-    if (displayTransactionNeeded && !mLayerLifecycleManagerEnabled) {
-        processDisplayChangesLocked();
-        mFrontEndDisplayInfos.clear();
-        for (const auto& [_, display] : mDisplays) {
-            mFrontEndDisplayInfos.try_emplace(display->getLayerStack(), display->getFrontEndInfo());
-        }
-    }
     mForceTransactionDisplayChange = displayTransactionNeeded;
 
     if (mSomeChildrenChanged) {
@@ -4234,23 +4118,10 @@
     outWindowInfos.reserve(sNumWindowInfos);
     sNumWindowInfos = 0;
 
-    if (mLayerLifecycleManagerEnabled) {
-        mLayerSnapshotBuilder.forEachInputSnapshot(
-                [&outWindowInfos](const frontend::LayerSnapshot& snapshot) {
-                    outWindowInfos.push_back(snapshot.inputInfo);
-                });
-    } else {
-        mDrawingState.traverseInReverseZOrder([&](Layer* layer) FTL_FAKE_GUARD(kMainThreadContext) {
-            if (!layer->needsInputInfo()) return;
-            const auto opt =
-                    mFrontEndDisplayInfos.get(layer->getLayerStack())
-                            .transform([](const frontend::DisplayInfo& info) {
-                                return Layer::InputDisplayArgs{&info.transform, info.isSecure};
-                            });
-
-            outWindowInfos.push_back(layer->fillInputInfo(opt.value_or(Layer::InputDisplayArgs{})));
-        });
-    }
+    mLayerSnapshotBuilder.forEachInputSnapshot(
+            [&outWindowInfos](const frontend::LayerSnapshot& snapshot) {
+                outWindowInfos.push_back(snapshot.inputInfo);
+            });
 
     sNumWindowInfos = outWindowInfos.size();
 
@@ -4309,25 +4180,14 @@
     }
 }
 
-void SurfaceFlinger::triggerOnFrameRateOverridesChanged() {
-    PhysicalDisplayId displayId = [&]() {
-        ConditionalLock lock(mStateLock, std::this_thread::get_id() != mMainThreadId);
-        return getDefaultDisplayDeviceLocked()->getPhysicalId();
-    }();
-
-    mScheduler->onFrameRateOverridesChanged(scheduler::Cycle::Render, displayId);
-}
-
 void SurfaceFlinger::notifyCpuLoadUp() {
     mPowerAdvisor->notifyCpuLoadUp();
 }
 
 void SurfaceFlinger::onChoreographerAttached() {
     SFTRACE_CALL();
-    if (mLayerLifecycleManagerEnabled) {
-        mUpdateAttachedChoreographer = true;
-        scheduleCommit(FrameHint::kNone);
-    }
+    mUpdateAttachedChoreographer = true;
+    scheduleCommit(FrameHint::kNone);
 }
 
 void SurfaceFlinger::onExpectedPresentTimePosted(TimePoint expectedPresentTime,
@@ -4631,97 +4491,6 @@
     }
 }
 
-bool SurfaceFlinger::latchBuffers() {
-    SFTRACE_CALL();
-
-    const nsecs_t latchTime = systemTime();
-
-    bool visibleRegions = false;
-    bool frameQueued = false;
-    bool newDataLatched = false;
-
-    // Store the set of layers that need updates. This set must not change as
-    // buffers are being latched, as this could result in a deadlock.
-    // Example: Two producers share the same command stream and:
-    // 1.) Layer 0 is latched
-    // 2.) Layer 0 gets a new frame
-    // 2.) Layer 1 gets a new frame
-    // 3.) Layer 1 is latched.
-    // Display is now waiting on Layer 1's frame, which is behind layer 0's
-    // second frame. But layer 0's second frame could be waiting on display.
-    mDrawingState.traverse([&](Layer* layer) {
-        if (layer->clearTransactionFlags(eTransactionNeeded) || mForceTransactionDisplayChange) {
-            const uint32_t flags = layer->doTransaction(0);
-            if (flags & Layer::eVisibleRegion) {
-                mVisibleRegionsDirty = true;
-            }
-        }
-
-        if (layer->hasReadyFrame() || layer->willReleaseBufferOnLatch()) {
-            frameQueued = true;
-            mLayersWithQueuedFrames.emplace(sp<Layer>::fromExisting(layer));
-        } else {
-            layer->useEmptyDamage();
-            if (!layer->hasBuffer()) {
-                // The last latch time is used to classify a missed frame as buffer stuffing
-                // instead of a missed frame. This is used to identify scenarios where we
-                // could not latch a buffer or apply a transaction due to backpressure.
-                // We only update the latch time for buffer less layers here, the latch time
-                // is updated for buffer layers when the buffer is latched.
-                layer->updateLastLatchTime(latchTime);
-            }
-        }
-    });
-    mForceTransactionDisplayChange = false;
-
-    // The client can continue submitting buffers for offscreen layers, but they will not
-    // be shown on screen. Therefore, we need to latch and release buffers of offscreen
-    // layers to ensure dequeueBuffer doesn't block indefinitely.
-    for (Layer* offscreenLayer : mOffscreenLayers) {
-        offscreenLayer->traverse(LayerVector::StateSet::Drawing,
-                                         [&](Layer* l) { l->latchAndReleaseBuffer(); });
-    }
-
-    if (!mLayersWithQueuedFrames.empty()) {
-        // mStateLock is needed for latchBuffer as LayerRejecter::reject()
-        // writes to Layer current state. See also b/119481871
-        Mutex::Autolock lock(mStateLock);
-
-        for (const auto& layer : mLayersWithQueuedFrames) {
-            if (layer->willReleaseBufferOnLatch()) {
-                mLayersWithBuffersRemoved.emplace(layer);
-            }
-            if (layer->latchBuffer(visibleRegions, latchTime)) {
-                mLayersPendingRefresh.push_back(layer);
-                newDataLatched = true;
-            }
-            layer->useSurfaceDamage();
-        }
-    }
-
-    mVisibleRegionsDirty |= visibleRegions;
-
-    // If we will need to wake up at some time in the future to deal with a
-    // queued frame that shouldn't be displayed during this vsync period, wake
-    // up during the next vsync period to check again.
-    if (frameQueued && (mLayersWithQueuedFrames.empty() || !newDataLatched)) {
-        scheduleCommit(FrameHint::kNone);
-    }
-
-    // enter boot animation on first buffer latch
-    if (CC_UNLIKELY(mBootStage == BootStage::BOOTLOADER && newDataLatched)) {
-        ALOGI("Enter boot animation");
-        mBootStage = BootStage::BOOTANIMATION;
-    }
-
-    if (mLayerMirrorRoots.size() > 0) {
-        mDrawingState.traverse([&](Layer* layer) { layer->updateCloneBufferInfo(); });
-    }
-
-    // Only continue with the refresh if there is actually new work to do
-    return !mLayersWithQueuedFrames.empty() && newDataLatched;
-}
-
 status_t SurfaceFlinger::addClientLayer(LayerCreationArgs& args, const sp<IBinder>& handle,
                                         const sp<Layer>& layer, const wp<Layer>& parent,
                                         uint32_t* outTransformHint) {
@@ -4871,101 +4640,6 @@
     return TransactionReadiness::Ready;
 }
 
-TransactionHandler::TransactionReadiness SurfaceFlinger::transactionReadyBufferCheckLegacy(
-        const TransactionHandler::TransactionFlushState& flushState) {
-    using TransactionReadiness = TransactionHandler::TransactionReadiness;
-    auto ready = TransactionReadiness::Ready;
-    flushState.transaction->traverseStatesWithBuffersWhileTrue([&](const ResolvedComposerState&
-                                                                           resolvedState) -> bool {
-        sp<Layer> layer = LayerHandle::getLayer(resolvedState.state.surface);
-
-        const auto& transaction = *flushState.transaction;
-        const auto& s = resolvedState.state;
-        // check for barrier frames
-        if (s.bufferData->hasBarrier) {
-            // The current producerId is already a newer producer than the buffer that has a
-            // barrier. This means the incoming buffer is older and we can release it here. We
-            // don't wait on the barrier since we know that's stale information.
-            if (layer->getDrawingState().barrierProducerId > s.bufferData->producerId) {
-                layer->callReleaseBufferCallback(s.bufferData->releaseBufferListener,
-                                                 resolvedState.externalTexture->getBuffer(),
-                                                 s.bufferData->frameNumber,
-                                                 s.bufferData->acquireFence);
-                // Delete the entire state at this point and not just release the buffer because
-                // everything associated with the Layer in this Transaction is now out of date.
-                SFTRACE_FORMAT("DeleteStaleBuffer %s barrierProducerId:%d > %d",
-                               layer->getDebugName(), layer->getDrawingState().barrierProducerId,
-                               s.bufferData->producerId);
-                return TraverseBuffersReturnValues::DELETE_AND_CONTINUE_TRAVERSAL;
-            }
-
-            if (layer->getDrawingState().barrierFrameNumber < s.bufferData->barrierFrameNumber) {
-                const bool willApplyBarrierFrame =
-                        flushState.bufferLayersReadyToPresent.contains(s.surface.get()) &&
-                        ((flushState.bufferLayersReadyToPresent.get(s.surface.get()) >=
-                          s.bufferData->barrierFrameNumber));
-                if (!willApplyBarrierFrame) {
-                    SFTRACE_FORMAT("NotReadyBarrier %s barrierFrameNumber:%" PRId64 " > %" PRId64,
-                                   layer->getDebugName(),
-                                   layer->getDrawingState().barrierFrameNumber,
-                                   s.bufferData->barrierFrameNumber);
-                    ready = TransactionReadiness::NotReadyBarrier;
-                    return TraverseBuffersReturnValues::STOP_TRAVERSAL;
-                }
-            }
-        }
-
-        // If backpressure is enabled and we already have a buffer to commit, keep
-        // the transaction in the queue.
-        const bool hasPendingBuffer =
-                flushState.bufferLayersReadyToPresent.contains(s.surface.get());
-        if (layer->backpressureEnabled() && hasPendingBuffer && transaction.isAutoTimestamp) {
-            SFTRACE_FORMAT("hasPendingBuffer %s", layer->getDebugName());
-            ready = TransactionReadiness::NotReady;
-            return TraverseBuffersReturnValues::STOP_TRAVERSAL;
-        }
-
-        const bool acquireFenceAvailable = s.bufferData &&
-                s.bufferData->flags.test(BufferData::BufferDataChange::fenceChanged) &&
-                s.bufferData->acquireFence;
-        const bool fenceSignaled = !acquireFenceAvailable ||
-                s.bufferData->acquireFence->getStatus() != Fence::Status::Unsignaled;
-        if (!fenceSignaled) {
-            // check fence status
-            const bool allowLatchUnsignaled = shouldLatchUnsignaled(s, transaction.states.size(),
-                                                                    flushState.firstTransaction) &&
-                    layer->isSimpleBufferUpdate(s);
-
-            if (allowLatchUnsignaled) {
-                SFTRACE_FORMAT("fence unsignaled try allowLatchUnsignaled %s",
-                               layer->getDebugName());
-                ready = TransactionReadiness::NotReadyUnsignaled;
-            } else {
-                ready = TransactionReadiness::NotReady;
-                auto& listener = s.bufferData->releaseBufferListener;
-                if (listener &&
-                    (flushState.queueProcessTime - transaction.postTime) >
-                            std::chrono::nanoseconds(4s).count()) {
-                    // Used to add a stalled transaction which uses an internal lock.
-                    ftl::FakeGuard guard(kMainThreadContext);
-                    mTransactionHandler
-                            .onTransactionQueueStalled(transaction.id,
-                                                       {.pid = layer->getOwnerPid(),
-                                                        .layerId = static_cast<uint32_t>(
-                                                                layer->getSequence()),
-                                                        .layerName = layer->getDebugName(),
-                                                        .bufferId = s.bufferData->getId(),
-                                                        .frameNumber = s.bufferData->frameNumber});
-                }
-                SFTRACE_FORMAT("fence unsignaled %s", layer->getDebugName());
-                return TraverseBuffersReturnValues::STOP_TRAVERSAL;
-            }
-        }
-        return TraverseBuffersReturnValues::CONTINUE_TRAVERSAL;
-    });
-    return ready;
-}
-
 TransactionHandler::TransactionReadiness SurfaceFlinger::transactionReadyBufferCheck(
         const TransactionHandler::TransactionFlushState& flushState) {
     using TransactionReadiness = TransactionHandler::TransactionReadiness;
@@ -5077,15 +4751,8 @@
 void SurfaceFlinger::addTransactionReadyFilters() {
     mTransactionHandler.addTransactionReadyFilter(
             std::bind(&SurfaceFlinger::transactionReadyTimelineCheck, this, std::placeholders::_1));
-    if (mLayerLifecycleManagerEnabled) {
-        mTransactionHandler.addTransactionReadyFilter(
-                std::bind(&SurfaceFlinger::transactionReadyBufferCheck, this,
-                          std::placeholders::_1));
-    } else {
-        mTransactionHandler.addTransactionReadyFilter(
-                std::bind(&SurfaceFlinger::transactionReadyBufferCheckLegacy, this,
-                          std::placeholders::_1));
-    }
+    mTransactionHandler.addTransactionReadyFilter(
+            std::bind(&SurfaceFlinger::transactionReadyBufferCheck, this, std::placeholders::_1));
 }
 
 // For tests only
@@ -5181,7 +4848,7 @@
 
 status_t SurfaceFlinger::setTransactionState(
         const FrameTimelineInfo& frameTimelineInfo, Vector<ComposerState>& states,
-        const Vector<DisplayState>& displays, uint32_t flags, const sp<IBinder>& applyToken,
+        Vector<DisplayState>& displays, uint32_t flags, const sp<IBinder>& applyToken,
         InputWindowCommands inputWindowCommands, int64_t desiredPresentTime, bool isAutoTimestamp,
         const std::vector<client_cache_t>& uncacheBuffers, bool hasListenerCallbacks,
         const std::vector<ListenerCallbacks>& listenerCallbacks, uint64_t transactionId,
@@ -5196,7 +4863,7 @@
         composerState.state.sanitize(permissions);
     }
 
-    for (DisplayState display : displays) {
+    for (DisplayState& display : displays) {
         display.sanitize(permissions);
     }
 
@@ -5317,11 +4984,6 @@
                                            const std::vector<ListenerCallbacks>& listenerCallbacks,
                                            int originPid, int originUid, uint64_t transactionId) {
     uint32_t transactionFlags = 0;
-    if (!mLayerLifecycleManagerEnabled) {
-        for (DisplayState& display : displays) {
-            transactionFlags |= setDisplayStateLocked(display);
-        }
-    }
 
     // start and end registration for listeners w/ no surface so they can get their callback.  Note
     // that listeners with SurfaceControls will start registration during setClientStateLocked
@@ -5329,27 +4991,11 @@
     for (const auto& listener : listenerCallbacks) {
         mTransactionCallbackInvoker.addEmptyTransaction(listener);
     }
-    nsecs_t now = systemTime();
     uint32_t clientStateFlags = 0;
     for (auto& resolvedState : states) {
         clientStateFlags |=
                 updateLayerCallbacksAndStats(frameTimelineInfo, resolvedState, desiredPresentTime,
                                              isAutoTimestamp, postTime, transactionId);
-        if (!mLayerLifecycleManagerEnabled) {
-            if ((flags & eAnimation) && resolvedState.state.surface) {
-                if (const auto layer = LayerHandle::getLayer(resolvedState.state.surface)) {
-                    const auto layerProps = scheduler::LayerProps{
-                            .visible = layer->isVisible(),
-                            .bounds = layer->getBounds(),
-                            .transform = layer->getTransform(),
-                            .setFrameRateVote = layer->getFrameRateForLayerTree(),
-                            .frameRateSelectionPriority = layer->getFrameRateSelectionPriority(),
-                            .isFrontBuffered = layer->isFrontBuffered(),
-                    };
-                    layer->recordLayerHistoryAnimationTx(layerProps, now);
-                }
-            }
-        }
     }
 
     transactionFlags |= clientStateFlags;
@@ -5484,364 +5130,6 @@
     return true;
 }
 
-uint32_t SurfaceFlinger::setClientStateLocked(const FrameTimelineInfo& frameTimelineInfo,
-                                              ResolvedComposerState& composerState,
-                                              int64_t desiredPresentTime, bool isAutoTimestamp,
-                                              int64_t postTime, uint64_t transactionId) {
-    layer_state_t& s = composerState.state;
-
-    std::vector<ListenerCallbacks> filteredListeners;
-    for (auto& listener : s.listeners) {
-        // Starts a registration but separates the callback ids according to callback type. This
-        // allows the callback invoker to send on latch callbacks earlier.
-        // note that startRegistration will not re-register if the listener has
-        // already be registered for a prior surface control
-
-        ListenerCallbacks onCommitCallbacks = listener.filter(CallbackId::Type::ON_COMMIT);
-        if (!onCommitCallbacks.callbackIds.empty()) {
-            filteredListeners.push_back(onCommitCallbacks);
-        }
-
-        ListenerCallbacks onCompleteCallbacks = listener.filter(CallbackId::Type::ON_COMPLETE);
-        if (!onCompleteCallbacks.callbackIds.empty()) {
-            filteredListeners.push_back(onCompleteCallbacks);
-        }
-    }
-
-    const uint64_t what = s.what;
-    uint32_t flags = 0;
-    sp<Layer> layer = nullptr;
-    if (s.surface) {
-        layer = LayerHandle::getLayer(s.surface);
-    } else {
-        // The client may provide us a null handle. Treat it as if the layer was removed.
-        ALOGW("Attempt to set client state with a null layer handle");
-    }
-    if (layer == nullptr) {
-        for (auto& [listener, callbackIds] : s.listeners) {
-            mTransactionCallbackInvoker.addCallbackHandle(
-                    sp<CallbackHandle>::make(listener, callbackIds, s.surface));
-        }
-        return 0;
-    }
-    MUTEX_ALIAS(mStateLock, layer->mFlinger->mStateLock);
-
-    ui::LayerStack oldLayerStack = layer->getLayerStack(LayerVector::StateSet::Current);
-
-    // Only set by BLAST adapter layers
-    if (what & layer_state_t::eProducerDisconnect) {
-        layer->onDisconnect();
-    }
-
-    if (what & layer_state_t::ePositionChanged) {
-        if (layer->setPosition(s.x, s.y)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eLayerChanged) {
-        // NOTE: index needs to be calculated before we update the state
-        const auto& p = layer->getParent();
-        if (p == nullptr) {
-            ssize_t idx = mCurrentState.layersSortedByZ.indexOf(layer);
-            if (layer->setLayer(s.z) && idx >= 0) {
-                mCurrentState.layersSortedByZ.removeAt(idx);
-                mCurrentState.layersSortedByZ.add(layer);
-                // we need traversal (state changed)
-                // AND transaction (list changed)
-                flags |= eTransactionNeeded|eTraversalNeeded;
-            }
-        } else {
-            if (p->setChildLayer(layer, s.z)) {
-                flags |= eTransactionNeeded|eTraversalNeeded;
-            }
-        }
-    }
-    if (what & layer_state_t::eRelativeLayerChanged) {
-        // NOTE: index needs to be calculated before we update the state
-        const auto& p = layer->getParent();
-        const auto& relativeHandle = s.relativeLayerSurfaceControl ?
-                s.relativeLayerSurfaceControl->getHandle() : nullptr;
-        if (p == nullptr) {
-            ssize_t idx = mCurrentState.layersSortedByZ.indexOf(layer);
-            if (layer->setRelativeLayer(relativeHandle, s.z) &&
-                idx >= 0) {
-                mCurrentState.layersSortedByZ.removeAt(idx);
-                mCurrentState.layersSortedByZ.add(layer);
-                // we need traversal (state changed)
-                // AND transaction (list changed)
-                flags |= eTransactionNeeded|eTraversalNeeded;
-            }
-        } else {
-            if (p->setChildRelativeLayer(layer, relativeHandle, s.z)) {
-                flags |= eTransactionNeeded|eTraversalNeeded;
-            }
-        }
-    }
-    if (what & layer_state_t::eAlphaChanged) {
-        if (layer->setAlpha(s.color.a)) flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eColorChanged) {
-        if (layer->setColor(s.color.rgb)) flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eColorTransformChanged) {
-        if (layer->setColorTransform(s.colorTransform)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eBackgroundColorChanged) {
-        if (layer->setBackgroundColor(s.bgColor.rgb, s.bgColor.a, s.bgColorDataspace)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eMatrixChanged) {
-        if (layer->setMatrix(s.matrix)) flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eTransparentRegionChanged) {
-        if (layer->setTransparentRegionHint(s.transparentRegion))
-            flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eFlagsChanged) {
-        if (layer->setFlags(s.flags, s.mask)) flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eCornerRadiusChanged) {
-        if (layer->setCornerRadius(s.cornerRadius))
-            flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eBackgroundBlurRadiusChanged && mSupportsBlur) {
-        if (layer->setBackgroundBlurRadius(s.backgroundBlurRadius)) flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eBlurRegionsChanged) {
-        if (layer->setBlurRegions(s.blurRegions)) flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eLayerStackChanged) {
-        ssize_t idx = mCurrentState.layersSortedByZ.indexOf(layer);
-        // We only allow setting layer stacks for top level layers,
-        // everything else inherits layer stack from its parent.
-        if (layer->hasParent()) {
-            ALOGE("Attempt to set layer stack on layer with parent (%s) is invalid",
-                  layer->getDebugName());
-        } else if (idx < 0) {
-            ALOGE("Attempt to set layer stack on layer without parent (%s) that "
-                  "that also does not appear in the top level layer list. Something"
-                  " has gone wrong.",
-                  layer->getDebugName());
-        } else if (layer->setLayerStack(s.layerStack)) {
-            mCurrentState.layersSortedByZ.removeAt(idx);
-            mCurrentState.layersSortedByZ.add(layer);
-            // we need traversal (state changed)
-            // AND transaction (list changed)
-            flags |= eTransactionNeeded | eTraversalNeeded | eTransformHintUpdateNeeded;
-        }
-    }
-    if (what & layer_state_t::eBufferTransformChanged) {
-        if (layer->setTransform(s.bufferTransform)) flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eTransformToDisplayInverseChanged) {
-        if (layer->setTransformToDisplayInverse(s.transformToDisplayInverse))
-            flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eCropChanged) {
-        if (layer->setCrop(s.crop)) flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eDataspaceChanged) {
-        if (layer->setDataspace(s.dataspace)) flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eSurfaceDamageRegionChanged) {
-        if (layer->setSurfaceDamageRegion(s.surfaceDamageRegion)) flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eApiChanged) {
-        if (layer->setApi(s.api)) flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eSidebandStreamChanged) {
-        if (layer->setSidebandStream(s.sidebandStream, frameTimelineInfo, postTime))
-            flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eInputInfoChanged) {
-        layer->setInputInfo(*s.windowInfoHandle->getInfo());
-        flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eMetadataChanged) {
-        if (const int32_t gameMode = s.metadata.getInt32(gui::METADATA_GAME_MODE, -1);
-            gameMode != -1) {
-            // The transaction will be received on the Task layer and needs to be applied to all
-            // child layers. Child layers that are added at a later point will obtain the game mode
-            // info through addChild().
-            layer->setGameModeForTree(static_cast<GameMode>(gameMode));
-        }
-
-        if (layer->setMetadata(s.metadata)) {
-            flags |= eTraversalNeeded;
-            mLayerMetadataSnapshotNeeded = true;
-        }
-    }
-    if (what & layer_state_t::eColorSpaceAgnosticChanged) {
-        if (layer->setColorSpaceAgnostic(s.colorSpaceAgnostic)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eShadowRadiusChanged) {
-        if (layer->setShadowRadius(s.shadowRadius)) flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eDefaultFrameRateCompatibilityChanged) {
-        const auto compatibility =
-                Layer::FrameRate::convertCompatibility(s.defaultFrameRateCompatibility);
-
-        if (layer->setDefaultFrameRateCompatibility(compatibility)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eFrameRateSelectionPriority) {
-        if (layer->setFrameRateSelectionPriority(s.frameRateSelectionPriority)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eFrameRateChanged) {
-        const auto compatibility =
-            Layer::FrameRate::convertCompatibility(s.frameRateCompatibility);
-        const auto strategy =
-            Layer::FrameRate::convertChangeFrameRateStrategy(s.changeFrameRateStrategy);
-
-        if (layer->setFrameRate(Layer::FrameRate::FrameRateVote(Fps::fromValue(s.frameRate),
-                                                                compatibility, strategy))) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eFrameRateCategoryChanged) {
-        const FrameRateCategory category = Layer::FrameRate::convertCategory(s.frameRateCategory);
-        if (layer->setFrameRateCategory(category, s.frameRateCategorySmoothSwitchOnly)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eFrameRateSelectionStrategyChanged) {
-        const scheduler::LayerInfo::FrameRateSelectionStrategy strategy =
-                scheduler::LayerInfo::convertFrameRateSelectionStrategy(
-                        s.frameRateSelectionStrategy);
-        if (layer->setFrameRateSelectionStrategy(strategy)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eFixedTransformHintChanged) {
-        if (layer->setFixedTransformHint(s.fixedTransformHint)) {
-            flags |= eTraversalNeeded | eTransformHintUpdateNeeded;
-        }
-    }
-    if (what & layer_state_t::eAutoRefreshChanged) {
-        layer->setAutoRefresh(s.autoRefresh);
-    }
-    if (what & layer_state_t::eDimmingEnabledChanged) {
-        if (layer->setDimmingEnabled(s.dimmingEnabled)) flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eExtendedRangeBrightnessChanged) {
-        if (layer->setExtendedRangeBrightness(s.currentHdrSdrRatio, s.desiredHdrSdrRatio)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eDesiredHdrHeadroomChanged) {
-        if (layer->setDesiredHdrHeadroom(s.desiredHdrSdrRatio)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eCachingHintChanged) {
-        if (layer->setCachingHint(s.cachingHint)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eHdrMetadataChanged) {
-        if (layer->setHdrMetadata(s.hdrMetadata)) flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eTrustedOverlayChanged) {
-        if (layer->setTrustedOverlay(s.trustedOverlay == gui::TrustedOverlay::ENABLED)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eStretchChanged) {
-        if (layer->setStretchEffect(s.stretchEffect)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eBufferCropChanged) {
-        if (layer->setBufferCrop(s.bufferCrop)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eDestinationFrameChanged) {
-        if (layer->setDestinationFrame(s.destinationFrame)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eDropInputModeChanged) {
-        if (layer->setDropInputMode(s.dropInputMode)) {
-            flags |= eTraversalNeeded;
-            mUpdateInputInfo = true;
-        }
-    }
-    // This has to happen after we reparent children because when we reparent to null we remove
-    // child layers from current state and remove its relative z. If the children are reparented in
-    // the same transaction, then we have to make sure we reparent the children first so we do not
-    // lose its relative z order.
-    if (what & layer_state_t::eReparent) {
-        bool hadParent = layer->hasParent();
-        auto parentHandle = (s.parentSurfaceControlForChild)
-                ? s.parentSurfaceControlForChild->getHandle()
-                : nullptr;
-        if (layer->reparent(parentHandle)) {
-            if (!hadParent) {
-                layer->setIsAtRoot(false);
-                mCurrentState.layersSortedByZ.remove(layer);
-            }
-            flags |= eTransactionNeeded | eTraversalNeeded;
-        }
-    }
-    std::vector<sp<CallbackHandle>> callbackHandles;
-    if ((what & layer_state_t::eHasListenerCallbacksChanged) && (!filteredListeners.empty())) {
-        for (auto& [listener, callbackIds] : filteredListeners) {
-            callbackHandles.emplace_back(
-                    sp<CallbackHandle>::make(listener, callbackIds, s.surface));
-        }
-    }
-
-    if (what & layer_state_t::eBufferChanged) {
-        if (layer->setBuffer(composerState.externalTexture, *s.bufferData, postTime,
-                             desiredPresentTime, isAutoTimestamp, frameTimelineInfo)) {
-            flags |= eTraversalNeeded;
-        }
-    } else if (frameTimelineInfo.vsyncId != FrameTimelineInfo::INVALID_VSYNC_ID) {
-        layer->setFrameTimelineVsyncForBufferlessTransaction(frameTimelineInfo, postTime);
-    }
-
-    if ((what & layer_state_t::eBufferChanged) == 0) {
-        layer->setDesiredPresentTime(desiredPresentTime, isAutoTimestamp);
-    }
-
-    if (what & layer_state_t::eTrustedPresentationInfoChanged) {
-        if (layer->setTrustedPresentationInfo(s.trustedPresentationThresholds,
-                                              s.trustedPresentationListener)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-
-    if (what & layer_state_t::eFlushJankData) {
-        // Do nothing. Processing the transaction completed listeners currently cause the flush.
-    }
-
-    if (layer->setTransactionCompletedListeners(callbackHandles,
-                                                layer->willPresentCurrentTransaction() ||
-                                                        layer->willReleaseBufferOnLatch())) {
-        flags |= eTraversalNeeded;
-    }
-
-    // Do not put anything that updates layer state or modifies flags after
-    // setTransactionCompletedListener
-
-    // if the layer has been parented on to a new display, update its transform hint.
-    if (((flags & eTransformHintUpdateNeeded) == 0) &&
-        oldLayerStack != layer->getLayerStack(LayerVector::StateSet::Current)) {
-        flags |= eTransformHintUpdateNeeded;
-    }
-
-    return flags;
-}
-
 uint32_t SurfaceFlinger::updateLayerCallbacksAndStats(const FrameTimelineInfo& frameTimelineInfo,
                                                       ResolvedComposerState& composerState,
                                                       int64_t desiredPresentTime,
@@ -5894,6 +5182,17 @@
                     sp<CallbackHandle>::make(listener, callbackIds, s.surface));
         }
     }
+
+    frontend::LayerSnapshot* snapshot = nullptr;
+    gui::GameMode gameMode = gui::GameMode::Unsupported;
+    if (what & (layer_state_t::eSidebandStreamChanged | layer_state_t::eBufferChanged) ||
+        frameTimelineInfo.vsyncId != FrameTimelineInfo::INVALID_VSYNC_ID) {
+        snapshot = mLayerSnapshotBuilder.getSnapshot(layer->sequence);
+        if (snapshot) {
+            gameMode = snapshot->gameMode;
+        }
+    }
+
     // TODO(b/238781169) remove after screenshot refactor, currently screenshots
     // requires to read drawing state from binder thread. So we need to fix that
     // before removing this.
@@ -5908,7 +5207,7 @@
         if (layer->setCrop(s.crop)) flags |= eTraversalNeeded;
     }
     if (what & layer_state_t::eSidebandStreamChanged) {
-        if (layer->setSidebandStream(s.sidebandStream, frameTimelineInfo, postTime))
+        if (layer->setSidebandStream(s.sidebandStream, frameTimelineInfo, postTime, gameMode))
             flags |= eTraversalNeeded;
     }
     if (what & layer_state_t::eDataspaceChanged) {
@@ -5926,18 +5225,17 @@
     }
     if (what & layer_state_t::eBufferChanged) {
         std::optional<ui::Transform::RotationFlags> transformHint = std::nullopt;
-        frontend::LayerSnapshot* snapshot = mLayerSnapshotBuilder.getSnapshot(layer->sequence);
         if (snapshot) {
             transformHint = snapshot->transformHint;
         }
         layer->setTransformHint(transformHint);
         if (layer->setBuffer(composerState.externalTexture, *s.bufferData, postTime,
-                             desiredPresentTime, isAutoTimestamp, frameTimelineInfo)) {
+                             desiredPresentTime, isAutoTimestamp, frameTimelineInfo, gameMode)) {
             flags |= eTraversalNeeded;
         }
-        mLayersWithQueuedFrames.emplace(layer);
+        mLayersWithQueuedFrames.emplace(layer, gameMode);
     } else if (frameTimelineInfo.vsyncId != FrameTimelineInfo::INVALID_VSYNC_ID) {
-        layer->setFrameTimelineVsyncForBufferlessTransaction(frameTimelineInfo, postTime);
+        layer->setFrameTimelineVsyncForBufferlessTransaction(frameTimelineInfo, postTime, gameMode);
     }
 
     if ((what & layer_state_t::eBufferChanged) == 0) {
@@ -6661,53 +5959,35 @@
 }
 
 void SurfaceFlinger::dumpVisibleFrontEnd(std::string& result) {
-    if (!mLayerLifecycleManagerEnabled) {
-        StringAppendF(&result, "Composition layers\n");
-        mDrawingState.traverseInZOrder([&](Layer* layer) {
-            auto* compositionState = layer->getCompositionState();
-            if (!compositionState || !compositionState->isVisible) return;
-            android::base::StringAppendF(&result, "* Layer %p (%s)\n", layer,
-                                         layer->getDebugName() ? layer->getDebugName()
-                                                               : "<unknown>");
-            compositionState->dump(result);
-        });
-
-        StringAppendF(&result, "Offscreen Layers\n");
-        for (Layer* offscreenLayer : mOffscreenLayers) {
-            offscreenLayer->traverse(LayerVector::StateSet::Drawing,
-                                     [&](Layer* layer) { layer->dumpOffscreenDebugInfo(result); });
-        }
-    } else {
-        std::ostringstream out;
-        out << "\nComposition list\n";
-        ui::LayerStack lastPrintedLayerStackHeader = ui::INVALID_LAYER_STACK;
-        mLayerSnapshotBuilder.forEachVisibleSnapshot(
-                [&](std::unique_ptr<frontend::LayerSnapshot>& snapshot) {
-                    if (snapshot->hasSomethingToDraw()) {
-                        if (lastPrintedLayerStackHeader != snapshot->outputFilter.layerStack) {
-                            lastPrintedLayerStackHeader = snapshot->outputFilter.layerStack;
-                            out << "LayerStack=" << lastPrintedLayerStackHeader.id << "\n";
-                        }
-                        out << "  " << *snapshot << "\n";
+    std::ostringstream out;
+    out << "\nComposition list\n";
+    ui::LayerStack lastPrintedLayerStackHeader = ui::INVALID_LAYER_STACK;
+    mLayerSnapshotBuilder.forEachVisibleSnapshot(
+            [&](std::unique_ptr<frontend::LayerSnapshot>& snapshot) {
+                if (snapshot->hasSomethingToDraw()) {
+                    if (lastPrintedLayerStackHeader != snapshot->outputFilter.layerStack) {
+                        lastPrintedLayerStackHeader = snapshot->outputFilter.layerStack;
+                        out << "LayerStack=" << lastPrintedLayerStackHeader.id << "\n";
                     }
-                });
+                    out << "  " << *snapshot << "\n";
+                }
+            });
 
-        out << "\nInput list\n";
-        lastPrintedLayerStackHeader = ui::INVALID_LAYER_STACK;
-        mLayerSnapshotBuilder.forEachInputSnapshot([&](const frontend::LayerSnapshot& snapshot) {
-            if (lastPrintedLayerStackHeader != snapshot.outputFilter.layerStack) {
-                lastPrintedLayerStackHeader = snapshot.outputFilter.layerStack;
-                out << "LayerStack=" << lastPrintedLayerStackHeader.id << "\n";
-            }
-            out << "  " << snapshot << "\n";
-        });
+    out << "\nInput list\n";
+    lastPrintedLayerStackHeader = ui::INVALID_LAYER_STACK;
+    mLayerSnapshotBuilder.forEachInputSnapshot([&](const frontend::LayerSnapshot& snapshot) {
+        if (lastPrintedLayerStackHeader != snapshot.outputFilter.layerStack) {
+            lastPrintedLayerStackHeader = snapshot.outputFilter.layerStack;
+            out << "LayerStack=" << lastPrintedLayerStackHeader.id << "\n";
+        }
+        out << "  " << snapshot << "\n";
+    });
 
-        out << "\nLayer Hierarchy\n"
-            << mLayerHierarchyBuilder.getHierarchy() << "\nOffscreen Hierarchy\n"
-            << mLayerHierarchyBuilder.getOffscreenHierarchy() << "\n\n";
-        result = out.str();
-        dumpHwcLayersMinidump(result);
-    }
+    out << "\nLayer Hierarchy\n"
+        << mLayerHierarchyBuilder.getHierarchy() << "\nOffscreen Hierarchy\n"
+        << mLayerHierarchyBuilder.getOffscreenHierarchy() << "\n\n";
+    result = out.str();
+    dumpHwcLayersMinidump(result);
 }
 
 perfetto::protos::LayersProto SurfaceFlinger::dumpDrawingStateProto(uint32_t traceFlags) const {
@@ -6810,28 +6090,8 @@
     result.append(future.get());
 }
 
-void SurfaceFlinger::dumpHwcLayersMinidumpLockedLegacy(std::string& result) const {
-    for (const auto& [token, display] : FTL_FAKE_GUARD(mStateLock, mDisplays)) {
-        const auto displayId = HalDisplayId::tryCast(display->getId());
-        if (!displayId) {
-            continue;
-        }
-
-        StringAppendF(&result, "Display %s (%s) HWC layers:\n", to_string(*displayId).c_str(),
-                      displayId == mActiveDisplayId ? "active" : "inactive");
-        Layer::miniDumpHeader(result);
-
-        const DisplayDevice& ref = *display;
-        mDrawingState.traverseInZOrder([&](Layer* layer) { layer->miniDumpLegacy(result, ref); });
-        result.append("\n");
-    }
-}
-
 void SurfaceFlinger::dumpHwcLayersMinidump(std::string& result) const {
-    if (!mLayerLifecycleManagerEnabled) {
-        return dumpHwcLayersMinidumpLockedLegacy(result);
-    }
-    for (const auto& [token, display] : FTL_FAKE_GUARD(mStateLock, mDisplays)) {
+    for (const auto& [token, display] : mDisplays) {
         const auto displayId = HalDisplayId::tryCast(display->getId());
         if (!displayId) {
             continue;
@@ -6910,8 +6170,7 @@
      * Dump the visible layer list
      */
     colorizer.bold(result);
-    StringAppendF(&result, "SurfaceFlinger New Frontend Enabled:%s\n",
-                  mLayerLifecycleManagerEnabled ? "true" : "false");
+    StringAppendF(&result, "SurfaceFlinger New Frontend Enabled:%s\n", "true");
     StringAppendF(&result, "Active Layers - layers with client handles (count = %zu)\n",
                   mNumLayers.load());
     colorizer.reset(result);
@@ -7503,15 +6762,9 @@
                 return NO_ERROR;
             }
             case 1039: {
-                PhysicalDisplayId displayId = [&]() {
-                    Mutex::Autolock lock(mStateLock);
-                    return getDefaultDisplayDeviceLocked()->getPhysicalId();
-                }();
-
-                auto inUid = static_cast<uid_t>(data.readInt32());
+                const auto uid = static_cast<uid_t>(data.readInt32());
                 const auto refreshRate = data.readFloat();
-                mScheduler->setPreferredRefreshRateForUid(FrameRateOverride{inUid, refreshRate});
-                mScheduler->onFrameRateOverridesChanged(scheduler::Cycle::Render, displayId);
+                mScheduler->setPreferredRefreshRateForUid(FrameRateOverride{uid, refreshRate});
                 return NO_ERROR;
             }
             // Toggle caching feature
@@ -8635,12 +7888,8 @@
 }
 
 void SurfaceFlinger::traverseLegacyLayers(const LayerVector::Visitor& visitor) const {
-    if (mLayerLifecycleManagerEnabled) {
-        for (auto& layer : mLegacyLayers) {
-            visitor(layer.second.get());
-        }
-    } else {
-        mDrawingState.traverse(visitor);
+    for (auto& layer : mLegacyLayers) {
+        visitor(layer.second.get());
     }
 }
 
@@ -8658,42 +7907,6 @@
     layersSortedByZ.traverseInReverseZOrder(stateSet, visitor);
 }
 
-void SurfaceFlinger::traverseLayersInLayerStack(ui::LayerStack layerStack, const int32_t uid,
-                                                std::unordered_set<uint32_t> excludeLayerIds,
-                                                const LayerVector::Visitor& visitor) {
-    // We loop through the first level of layers without traversing,
-    // as we need to determine which layers belong to the requested display.
-    for (const auto& layer : mDrawingState.layersSortedByZ) {
-        if (layer->getLayerStack() != layerStack) {
-            continue;
-        }
-        // relative layers are traversed in Layer::traverseInZOrder
-        layer->traverseInZOrder(LayerVector::StateSet::Drawing, [&](Layer* layer) {
-            if (layer->isInternalDisplayOverlay()) {
-                return;
-            }
-            if (!layer->isVisible()) {
-                return;
-            }
-            if (uid != CaptureArgs::UNSET_UID && layer->getOwnerUid() != uid) {
-                return;
-            }
-
-            if (!excludeLayerIds.empty()) {
-                auto p = sp<Layer>::fromExisting(layer);
-                while (p != nullptr) {
-                    if (excludeLayerIds.count(p->sequence) != 0) {
-                        return;
-                    }
-                    p = p->getParent();
-                }
-            }
-
-            visitor(layer);
-        });
-    }
-}
-
 ftl::Optional<scheduler::FrameRateMode> SurfaceFlinger::getPreferredDisplayMode(
         PhysicalDisplayId displayId, DisplayModeId defaultModeId) const {
     if (const auto schedulerMode = mScheduler->getPreferredDisplayMode();
@@ -8774,10 +7987,7 @@
     setDesiredMode({std::move(preferredMode), .emitEvent = true});
 
     // Update the frameRateOverride list as the display render rate might have changed
-    if (mScheduler->updateFrameRateOverrides(scheduler::GlobalSignals{}, preferredFps)) {
-        triggerOnFrameRateOverridesChanged();
-    }
-
+    mScheduler->updateFrameRateOverrides(scheduler::GlobalSignals{}, preferredFps);
     return NO_ERROR;
 }
 
@@ -8937,13 +8147,7 @@
 }
 
 status_t SurfaceFlinger::setGameModeFrameRateOverride(uid_t uid, float frameRate) {
-    PhysicalDisplayId displayId = [&]() {
-        Mutex::Autolock lock(mStateLock);
-        return getDefaultDisplayDeviceLocked()->getPhysicalId();
-    }();
-
-    mScheduler->setGameModeFrameRateForUid(FrameRateOverride{static_cast<uid_t>(uid), frameRate});
-    mScheduler->onFrameRateOverridesChanged(scheduler::Cycle::Render, displayId);
+    mScheduler->setGameModeFrameRateForUid(FrameRateOverride{uid, frameRate});
     return NO_ERROR;
 }
 
@@ -9268,178 +8472,52 @@
     return nullptr;
 }
 
-bool SurfaceFlinger::commitMirrorDisplays(VsyncId vsyncId) {
-    std::vector<MirrorDisplayState> mirrorDisplays;
-    {
-        std::scoped_lock<std::mutex> lock(mMirrorDisplayLock);
-        mirrorDisplays = std::move(mMirrorDisplays);
-        mMirrorDisplays.clear();
-        if (mirrorDisplays.size() == 0) {
-            return false;
-        }
-    }
-
-    sp<IBinder> unused;
-    for (const auto& mirrorDisplay : mirrorDisplays) {
-        // Set mirror layer's default layer stack to -1 so it doesn't end up rendered on a display
-        // accidentally.
-        sp<Layer> rootMirrorLayer = LayerHandle::getLayer(mirrorDisplay.rootHandle);
-        ssize_t idx = mCurrentState.layersSortedByZ.indexOf(rootMirrorLayer);
-        bool ret = rootMirrorLayer->setLayerStack(ui::LayerStack::fromValue(-1));
-        if (idx >= 0 && ret) {
-            mCurrentState.layersSortedByZ.removeAt(idx);
-            mCurrentState.layersSortedByZ.add(rootMirrorLayer);
-        }
-
-        for (const auto& layer : mDrawingState.layersSortedByZ) {
-            if (layer->getLayerStack() != mirrorDisplay.layerStack ||
-                layer->isInternalDisplayOverlay()) {
-                continue;
-            }
-
-            LayerCreationArgs mirrorArgs(this, mirrorDisplay.client, "MirrorLayerParent",
-                                         ISurfaceComposerClient::eNoColorFill,
-                                         gui::LayerMetadata());
-            sp<Layer> childMirror;
-            {
-                Mutex::Autolock lock(mStateLock);
-                createEffectLayer(mirrorArgs, &unused, &childMirror);
-                MUTEX_ALIAS(mStateLock, childMirror->mFlinger->mStateLock);
-                childMirror->setClonedChild(layer->createClone());
-                childMirror->reparent(mirrorDisplay.rootHandle);
-            }
-            // lock on mStateLock needs to be released before binder handle gets destroyed
-            unused.clear();
-        }
-    }
-    return true;
-}
-
-bool SurfaceFlinger::commitCreatedLayers(VsyncId vsyncId,
-                                         std::vector<LayerCreatedState>& createdLayers) {
-    if (createdLayers.size() == 0) {
-        return false;
-    }
-
-    Mutex::Autolock _l(mStateLock);
-    for (const auto& createdLayer : createdLayers) {
-        handleLayerCreatedLocked(createdLayer, vsyncId);
-    }
-    mLayersAdded = true;
-    return mLayersAdded;
-}
-
-void SurfaceFlinger::updateLayerMetadataSnapshot() {
-    LayerMetadata parentMetadata;
-    for (const auto& layer : mDrawingState.layersSortedByZ) {
-        layer->updateMetadataSnapshot(parentMetadata);
-    }
-
-    std::unordered_set<Layer*> visited;
-    mDrawingState.traverse([&visited](Layer* layer) {
-        if (visited.find(layer) != visited.end()) {
-            return;
-        }
-
-        // If the layer isRelativeOf, then either it's relative metadata will be set
-        // recursively when updateRelativeMetadataSnapshot is called on its relative parent or
-        // it's relative parent has been deleted. Clear the layer's relativeLayerMetadata to ensure
-        // that layers with deleted relative parents don't hold stale relativeLayerMetadata.
-        if (layer->getDrawingState().isRelativeOf) {
-            layer->editLayerSnapshot()->relativeLayerMetadata = {};
-            return;
-        }
-
-        layer->updateRelativeMetadataSnapshot({}, visited);
-    });
-}
-
 void SurfaceFlinger::moveSnapshotsFromCompositionArgs(
         compositionengine::CompositionRefreshArgs& refreshArgs,
         const std::vector<std::pair<Layer*, LayerFE*>>& layers) {
-    if (mLayerLifecycleManagerEnabled) {
-        std::vector<std::unique_ptr<frontend::LayerSnapshot>>& snapshots =
-                mLayerSnapshotBuilder.getSnapshots();
-        for (auto [_, layerFE] : layers) {
-            auto i = layerFE->mSnapshot->globalZ;
-            snapshots[i] = std::move(layerFE->mSnapshot);
-        }
-    }
-    if (!mLayerLifecycleManagerEnabled) {
-        for (auto [layer, layerFE] : layers) {
-            layer->updateLayerSnapshot(std::move(layerFE->mSnapshot));
-        }
+    std::vector<std::unique_ptr<frontend::LayerSnapshot>>& snapshots =
+            mLayerSnapshotBuilder.getSnapshots();
+    for (auto [_, layerFE] : layers) {
+        auto i = layerFE->mSnapshot->globalZ;
+        snapshots[i] = std::move(layerFE->mSnapshot);
     }
 }
 
 std::vector<std::pair<Layer*, LayerFE*>> SurfaceFlinger::moveSnapshotsToCompositionArgs(
         compositionengine::CompositionRefreshArgs& refreshArgs, bool cursorOnly) {
     std::vector<std::pair<Layer*, LayerFE*>> layers;
-    if (mLayerLifecycleManagerEnabled) {
-        nsecs_t currentTime = systemTime();
-        const bool needsMetadata = mCompositionEngine->getFeatureFlags().test(
-                compositionengine::Feature::kSnapshotLayerMetadata);
-        mLayerSnapshotBuilder.forEachSnapshot(
-                [&](std::unique_ptr<frontend::LayerSnapshot>& snapshot) FTL_FAKE_GUARD(
-                        kMainThreadContext) {
-                    if (cursorOnly &&
-                        snapshot->compositionType !=
-                                aidl::android::hardware::graphics::composer3::Composition::CURSOR) {
-                        return;
-                    }
-
-                    if (!snapshot->hasSomethingToDraw()) {
-                        return;
-                    }
-
-                    auto it = mLegacyLayers.find(snapshot->sequence);
-                    LLOG_ALWAYS_FATAL_WITH_TRACE_IF(it == mLegacyLayers.end(),
-                                                    "Couldnt find layer object for %s",
-                                                    snapshot->getDebugString().c_str());
-                    auto& legacyLayer = it->second;
-                    sp<LayerFE> layerFE = legacyLayer->getCompositionEngineLayerFE(snapshot->path);
-                    snapshot->fps = getLayerFramerate(currentTime, snapshot->sequence);
-                    layerFE->mSnapshot = std::move(snapshot);
-                    refreshArgs.layers.push_back(layerFE);
-                    layers.emplace_back(legacyLayer.get(), layerFE.get());
-                },
-                [needsMetadata](const frontend::LayerSnapshot& snapshot) {
-                    return snapshot.isVisible ||
-                            (needsMetadata &&
-                             snapshot.changes.test(
-                                     frontend::RequestedLayerState::Changes::Metadata));
-                });
-    }
-    if (!mLayerLifecycleManagerEnabled) {
-        auto moveSnapshots = [&layers, &refreshArgs, cursorOnly](Layer* layer) {
-            if (const auto& layerFE = layer->getCompositionEngineLayerFE()) {
+    nsecs_t currentTime = systemTime();
+    const bool needsMetadata = mCompositionEngine->getFeatureFlags().test(
+            compositionengine::Feature::kSnapshotLayerMetadata);
+    mLayerSnapshotBuilder.forEachSnapshot(
+            [&](std::unique_ptr<frontend::LayerSnapshot>& snapshot) FTL_FAKE_GUARD(
+                    kMainThreadContext) {
                 if (cursorOnly &&
-                    layer->getLayerSnapshot()->compositionType !=
-                            aidl::android::hardware::graphics::composer3::Composition::CURSOR)
+                    snapshot->compositionType !=
+                            aidl::android::hardware::graphics::composer3::Composition::CURSOR) {
                     return;
-                layer->updateSnapshot(refreshArgs.updatingGeometryThisFrame);
-                layerFE->mSnapshot = layer->stealLayerSnapshot();
+                }
+
+                if (!snapshot->hasSomethingToDraw()) {
+                    return;
+                }
+
+                auto it = mLegacyLayers.find(snapshot->sequence);
+                LLOG_ALWAYS_FATAL_WITH_TRACE_IF(it == mLegacyLayers.end(),
+                                                "Couldnt find layer object for %s",
+                                                snapshot->getDebugString().c_str());
+                auto& legacyLayer = it->second;
+                sp<LayerFE> layerFE = legacyLayer->getCompositionEngineLayerFE(snapshot->path);
+                snapshot->fps = getLayerFramerate(currentTime, snapshot->sequence);
+                layerFE->mSnapshot = std::move(snapshot);
                 refreshArgs.layers.push_back(layerFE);
-                layers.emplace_back(layer, layerFE.get());
-            }
-        };
-
-        if (cursorOnly || !mVisibleRegionsDirty) {
-            // for hot path avoid traversals by walking though the previous composition list
-            for (sp<Layer> layer : mPreviouslyComposedLayers) {
-                moveSnapshots(layer.get());
-            }
-        } else {
-            mPreviouslyComposedLayers.clear();
-            mDrawingState.traverseInZOrder(
-                    [&moveSnapshots](Layer* layer) { moveSnapshots(layer); });
-            mPreviouslyComposedLayers.reserve(layers.size());
-            for (auto [layer, _] : layers) {
-                mPreviouslyComposedLayers.push_back(sp<Layer>::fromExisting(layer));
-            }
-        }
-    }
-
+                layers.emplace_back(legacyLayer.get(), layerFE.get());
+            },
+            [needsMetadata](const frontend::LayerSnapshot& snapshot) {
+                return snapshot.isVisible ||
+                        (needsMetadata &&
+                         snapshot.changes.test(frontend::RequestedLayerState::Changes::Metadata));
+            });
     return layers;
 }
 
@@ -9566,33 +8644,6 @@
     };
 }
 
-frontend::Update SurfaceFlinger::flushLifecycleUpdates() {
-    frontend::Update update;
-    SFTRACE_NAME("TransactionHandler:flushTransactions");
-    // Locking:
-    // 1. to prevent onHandleDestroyed from being called while the state lock is held,
-    // we must keep a copy of the transactions (specifically the composer
-    // states) around outside the scope of the lock.
-    // 2. Transactions and created layers do not share a lock. To prevent applying
-    // transactions with layers still in the createdLayer queue, flush the transactions
-    // before committing the created layers.
-    mTransactionHandler.collectTransactions();
-    update.transactions = mTransactionHandler.flushTransactions();
-    {
-        // TODO(b/238781169) lockless queue this and keep order.
-        std::scoped_lock<std::mutex> lock(mCreatedLayersLock);
-        update.layerCreatedStates = std::move(mCreatedLayers);
-        mCreatedLayers.clear();
-        update.newLayers = std::move(mNewLayers);
-        mNewLayers.clear();
-        update.layerCreationArgs = std::move(mNewLayerArgs);
-        mNewLayerArgs.clear();
-        update.destroyedHandles = std::move(mDestroyedHandles);
-        mDestroyedHandles.clear();
-    }
-    return update;
-}
-
 void SurfaceFlinger::doActiveLayersTracingIfNeeded(bool isCompositionComputed,
                                                    bool visibleRegionDirty, TimePoint time,
                                                    VsyncId vsyncId) {
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index b17fd49..9b2dea2 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -273,7 +273,7 @@
     enum class FrameHint { kNone, kActive };
 
     // Schedule commit of transactions on the main thread ahead of the next VSYNC.
-    void scheduleCommit(FrameHint);
+    void scheduleCommit(FrameHint, Duration workDurationSlack = Duration::fromNs(0));
     // As above, but also force composite regardless if transactions were committed.
     void scheduleComposite(FrameHint);
     // As above, but also force dirty geometry to repaint.
@@ -313,7 +313,6 @@
     // Disables expensive rendering for all displays
     // This is scheduled on the main thread
     void disableExpensiveRendering();
-    FloatRect getMaxDisplayBounds();
 
     // If set, composition engine tries to predict the composition strategy provided by HWC
     // based on the previous frame. If the strategy can be predicted, gpu composition will
@@ -560,7 +559,7 @@
     sp<IBinder> getPhysicalDisplayToken(PhysicalDisplayId displayId) const;
     status_t setTransactionState(
             const FrameTimelineInfo& frameTimelineInfo, Vector<ComposerState>& state,
-            const Vector<DisplayState>& displays, uint32_t flags, const sp<IBinder>& applyToken,
+            Vector<DisplayState>& displays, uint32_t flags, const sp<IBinder>& applyToken,
             InputWindowCommands inputWindowCommands, int64_t desiredPresentTime,
             bool isAutoTimestamp, const std::vector<client_cache_t>& uncacheBuffers,
             bool hasListenerCallbacks, const std::vector<ListenerCallbacks>& listenerCallbacks,
@@ -698,7 +697,6 @@
     void requestHardwareVsync(PhysicalDisplayId, bool) override;
     void requestDisplayModes(std::vector<display::DisplayModeRequest>) override;
     void kernelTimerChanged(bool expired) override;
-    void triggerOnFrameRateOverridesChanged() override;
     void onChoreographerAttached() override;
     void onExpectedPresentTimePosted(TimePoint expectedPresentTime, ftl::NonNull<DisplayModePtr>,
                                      Fps renderRate) override;
@@ -764,17 +762,11 @@
                                             const scheduler::RefreshRateSelector&)
             REQUIRES(mStateLock, kMainThreadContext);
 
-    void commitTransactionsLegacy() EXCLUDES(mStateLock) REQUIRES(kMainThreadContext);
     void commitTransactions() REQUIRES(kMainThreadContext, mStateLock);
     void commitTransactionsLocked(uint32_t transactionFlags)
             REQUIRES(mStateLock, kMainThreadContext);
     void doCommitTransactions() REQUIRES(mStateLock);
 
-    // Returns whether a new buffer has been latched.
-    bool latchBuffers();
-
-    void updateLayerGeometry();
-    void updateLayerMetadataSnapshot();
     std::vector<std::pair<Layer*, LayerFE*>> moveSnapshotsToCompositionArgs(
             compositionengine::CompositionRefreshArgs& refreshArgs, bool cursorOnly)
             REQUIRES(kMainThreadContext);
@@ -782,13 +774,9 @@
                                           const std::vector<std::pair<Layer*, LayerFE*>>& layers)
             REQUIRES(kMainThreadContext);
     // Return true if we must composite this frame
-    bool updateLayerSnapshotsLegacy(VsyncId vsyncId, nsecs_t frameTimeNs, bool transactionsFlushed,
-                                    bool& out) REQUIRES(kMainThreadContext);
-    // Return true if we must composite this frame
     bool updateLayerSnapshots(VsyncId vsyncId, nsecs_t frameTimeNs, bool transactionsFlushed,
                               bool& out) REQUIRES(kMainThreadContext);
     void updateLayerHistory(nsecs_t now) REQUIRES(kMainThreadContext);
-    frontend::Update flushLifecycleUpdates() REQUIRES(kMainThreadContext);
 
     void updateInputFlinger(VsyncId vsyncId, TimePoint frameTime) REQUIRES(kMainThreadContext);
     void persistDisplayBrightness(bool needsComposite) REQUIRES(kMainThreadContext);
@@ -827,16 +815,10 @@
     TransactionHandler::TransactionReadiness transactionReadyTimelineCheck(
             const TransactionHandler::TransactionFlushState& flushState)
             REQUIRES(kMainThreadContext);
-    TransactionHandler::TransactionReadiness transactionReadyBufferCheckLegacy(
-            const TransactionHandler::TransactionFlushState& flushState)
-            REQUIRES(kMainThreadContext);
     TransactionHandler::TransactionReadiness transactionReadyBufferCheck(
             const TransactionHandler::TransactionFlushState& flushState)
             REQUIRES(kMainThreadContext);
 
-    uint32_t setClientStateLocked(const FrameTimelineInfo&, ResolvedComposerState&,
-                                  int64_t desiredPresentTime, bool isAutoTimestamp,
-                                  int64_t postTime, uint64_t transactionId) REQUIRES(mStateLock);
     uint32_t updateLayerCallbacksAndStats(const FrameTimelineInfo&, ResolvedComposerState&,
                                           int64_t desiredPresentTime, bool isAutoTimestamp,
                                           int64_t postTime, uint64_t transactionId)
@@ -886,9 +868,6 @@
                             const sp<Layer>& layer, const wp<Layer>& parentLayer,
                             uint32_t* outTransformHint);
 
-    // Traverse through all the layers and compute and cache its bounds.
-    void computeLayerBounds();
-
     // Creates a promise for a future release fence for a layer. This allows for
     // the layer to keep track of when its buffer can be released.
     void attachReleaseFenceFutureToLayer(Layer* layer, LayerFE* layerFE, ui::LayerStack layerStack);
@@ -935,12 +914,6 @@
             std::vector<std::pair<Layer*, sp<LayerFE>>>& layers,
             std::vector<sp<LayerFE>>& layerFEs);
 
-    // If the uid provided is not UNSET_UID, the traverse will skip any layers that don't have a
-    // matching ownerUid
-    void traverseLayersInLayerStack(ui::LayerStack, const int32_t uid,
-                                    std::unordered_set<uint32_t> excludeLayerIds,
-                                    const LayerVector::Visitor&);
-
     void readPersistentProperties();
 
     uint32_t getMaxAcquiredBufferCountForCurrentRefreshRate(uid_t uid) const;
@@ -989,18 +962,12 @@
         return nullptr;
     }
 
-    // Returns the primary display or (for foldables) the active display, assuming that the inner
-    // and outer displays have mutually exclusive power states.
+    // Returns the primary display or (for foldables) the active display.
     sp<const DisplayDevice> getDefaultDisplayDeviceLocked() const REQUIRES(mStateLock) {
         return const_cast<SurfaceFlinger*>(this)->getDefaultDisplayDeviceLocked();
     }
 
     sp<DisplayDevice> getDefaultDisplayDeviceLocked() REQUIRES(mStateLock) {
-        if (const auto display = getDisplayDeviceLocked(mActiveDisplayId)) {
-            return display;
-        }
-        // The active display is outdated, so fall back to the primary display.
-        mActiveDisplayId = getPrimaryDisplayIdLocked();
         return getDisplayDeviceLocked(mActiveDisplayId);
     }
 
@@ -1157,7 +1124,6 @@
     void dumpAll(const DumpArgs& args, const std::string& compositionLayers,
                  std::string& result) const EXCLUDES(mStateLock);
     void dumpHwcLayersMinidump(std::string& result) const REQUIRES(mStateLock, kMainThreadContext);
-    void dumpHwcLayersMinidumpLockedLegacy(std::string& result) const REQUIRES(mStateLock);
 
     void appendSfConfigString(std::string& result) const;
     void listLayers(std::string& result) const REQUIRES(kMainThreadContext);
@@ -1301,18 +1267,20 @@
     bool mForceTransactionDisplayChange = false;
     bool mUpdateAttachedChoreographer = false;
 
-    // Set if LayerMetadata has changed since the last LayerMetadata snapshot.
-    bool mLayerMetadataSnapshotNeeded = false;
+    struct LayerIntHash {
+        size_t operator()(const std::pair<sp<Layer>, gui::GameMode>& k) const {
+            return std::hash<Layer*>()(k.first.get()) ^
+                    std::hash<int32_t>()(static_cast<int32_t>(k.second));
+        }
+    };
 
     // TODO(b/238781169) validate these on composition
     // Tracks layers that have pending frames which are candidates for being
     // latched.
-    std::unordered_set<sp<Layer>, SpHash<Layer>> mLayersWithQueuedFrames;
+    std::unordered_set<std::pair<sp<Layer>, gui::GameMode>, LayerIntHash> mLayersWithQueuedFrames;
     std::unordered_set<sp<Layer>, SpHash<Layer>> mLayersWithBuffersRemoved;
     std::unordered_set<uint32_t> mLayersIdsWithQueuedFrames;
 
-    // Tracks layers that need to update a display's dirty region.
-    std::vector<sp<Layer>> mLayersPendingRefresh;
     // Sorted list of layers that were composed during previous frame. This is used to
     // avoid an expensive traversal of the layer hierarchy when there are no
     // visible region changes. Because this is a list of strong pointers, this will
@@ -1340,7 +1308,7 @@
 
     display::PhysicalDisplays mPhysicalDisplays GUARDED_BY(mStateLock);
 
-    // The inner or outer display for foldables, assuming they have mutually exclusive power states.
+    // The inner or outer display for foldables, while unfolded or folded, respectively.
     std::atomic<PhysicalDisplayId> mActiveDisplayId;
 
     display::DisplayModeController mDisplayModeController;
@@ -1457,22 +1425,8 @@
     // 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);
-    bool commitCreatedLayers(VsyncId, std::vector<LayerCreatedState>& createdLayers);
     void handleLayerCreatedLocked(const LayerCreatedState&, VsyncId) REQUIRES(mStateLock);
 
-    mutable std::mutex mMirrorDisplayLock;
-    struct MirrorDisplayState {
-        MirrorDisplayState(ui::LayerStack layerStack, sp<IBinder>& rootHandle,
-                           const sp<Client>& client)
-              : layerStack(layerStack), rootHandle(rootHandle), client(client) {}
-
-        ui::LayerStack layerStack;
-        sp<IBinder> rootHandle;
-        const sp<Client> client;
-    };
-    std::vector<MirrorDisplayState> mMirrorDisplays GUARDED_BY(mMirrorDisplayLock);
-    bool commitMirrorDisplays(VsyncId);
-
     std::atomic<ui::Transform::RotationFlags> mActiveDisplayTransformHint;
 
     // Must only be accessed on the main thread.
@@ -1506,8 +1460,6 @@
     }
 
     bool mPowerHintSessionEnabled;
-
-    bool mLayerLifecycleManagerEnabled = true;
     // Whether a display should be turned on when initialized
     bool mSkipPowerOnForQuiescent;
 
diff --git a/services/surfaceflinger/Utils/RingBuffer.h b/services/surfaceflinger/Utils/RingBuffer.h
index 198e7b2..215472b 100644
--- a/services/surfaceflinger/Utils/RingBuffer.h
+++ b/services/surfaceflinger/Utils/RingBuffer.h
@@ -43,8 +43,10 @@
     }
 
     T& front() { return (*this)[0]; }
+    const T& front() const { return (*this)[0]; }
 
     T& back() { return (*this)[size() - 1]; }
+    const T& back() const { return (*this)[size() - 1]; }
 
     T& operator[](size_t index) {
         return mBuffer[(static_cast<size_t>(mHead + 1) + index) % mCount];
diff --git a/services/surfaceflinger/layerproto/Android.bp b/services/surfaceflinger/layerproto/Android.bp
index f77b137..0a69a72 100644
--- a/services/surfaceflinger/layerproto/Android.bp
+++ b/services/surfaceflinger/layerproto/Android.bp
@@ -8,14 +8,9 @@
     default_team: "trendy_team_android_core_graphics_stack",
 }
 
-cc_library {
-    name: "liblayers_proto",
+cc_defaults {
+    name: "libsurfaceflinger_proto_deps",
     export_include_dirs: ["include"],
-
-    srcs: [
-        "LayerProtoParser.cpp",
-    ],
-
     static_libs: [
         "libperfetto_client_experimental",
     ],
@@ -31,24 +26,15 @@
     ],
 
     shared_libs: [
-        "android.hardware.graphics.common@1.1",
-        "libgui",
-        "libui",
         "libprotobuf-cpp-lite",
-        "libbase",
     ],
 
-    cppflags: [
-        "-Werror",
-        "-Wno-unused-parameter",
-        "-Wno-format",
-        "-Wno-c++98-compat-pedantic",
-        "-Wno-float-conversion",
-        "-Wno-disabled-macro-expansion",
-        "-Wno-float-equal",
-        "-Wno-sign-conversion",
-        "-Wno-padded",
-        "-Wno-old-style-cast",
-        "-Wno-undef",
+    header_libs: [
+        "libsurfaceflinger_proto_headers",
     ],
 }
+
+cc_library_headers {
+    name: "libsurfaceflinger_proto_headers",
+    export_include_dirs: ["include"],
+}
diff --git a/services/surfaceflinger/layerproto/LayerProtoParser.cpp b/services/surfaceflinger/layerproto/LayerProtoParser.cpp
deleted file mode 100644
index c3d0a40..0000000
--- a/services/surfaceflinger/layerproto/LayerProtoParser.cpp
+++ /dev/null
@@ -1,328 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#include <android-base/stringprintf.h>
-#include <layerproto/LayerProtoParser.h>
-#include <ui/DebugUtils.h>
-
-using android::base::StringAppendF;
-using android::base::StringPrintf;
-
-namespace android {
-namespace surfaceflinger {
-
-bool sortLayers(LayerProtoParser::Layer* lhs, const LayerProtoParser::Layer* rhs) {
-    uint32_t ls = lhs->layerStack;
-    uint32_t rs = rhs->layerStack;
-    if (ls != rs) return ls < rs;
-
-    int32_t lz = lhs->z;
-    int32_t rz = rhs->z;
-    if (lz != rz) {
-        return lz < rz;
-    }
-
-    return lhs->id < rhs->id;
-}
-
-LayerProtoParser::LayerTree LayerProtoParser::generateLayerTree(
-        const perfetto::protos::LayersProto& layersProto) {
-    LayerTree layerTree;
-    layerTree.allLayers = generateLayerList(layersProto);
-
-    // find and sort the top-level layers
-    for (Layer& layer : layerTree.allLayers) {
-        if (layer.parent == nullptr) {
-            layerTree.topLevelLayers.push_back(&layer);
-        }
-    }
-    std::sort(layerTree.topLevelLayers.begin(), layerTree.topLevelLayers.end(), sortLayers);
-
-    return layerTree;
-}
-
-std::vector<LayerProtoParser::Layer> LayerProtoParser::generateLayerList(
-        const perfetto::protos::LayersProto& layersProto) {
-    std::vector<Layer> layerList;
-    std::unordered_map<int32_t, Layer*> layerMap;
-
-    // build the layer list and the layer map
-    layerList.reserve(layersProto.layers_size());
-    layerMap.reserve(layersProto.layers_size());
-    for (int i = 0; i < layersProto.layers_size(); i++) {
-        layerList.emplace_back(generateLayer(layersProto.layers(i)));
-        // this works because layerList never changes capacity
-        layerMap[layerList.back().id] = &layerList.back();
-    }
-
-    // fix up children and relatives
-    for (int i = 0; i < layersProto.layers_size(); i++) {
-        updateChildrenAndRelative(layersProto.layers(i), layerMap);
-    }
-
-    return layerList;
-}
-
-LayerProtoParser::Layer LayerProtoParser::generateLayer(
-        const perfetto::protos::LayerProto& layerProto) {
-    Layer layer;
-    layer.id = layerProto.id();
-    layer.name = layerProto.name();
-    layer.type = layerProto.type();
-    layer.transparentRegion = generateRegion(layerProto.transparent_region());
-    layer.visibleRegion = generateRegion(layerProto.visible_region());
-    layer.damageRegion = generateRegion(layerProto.damage_region());
-    layer.layerStack = layerProto.layer_stack();
-    layer.z = layerProto.z();
-    layer.position = {layerProto.position().x(), layerProto.position().y()};
-    layer.requestedPosition = {layerProto.requested_position().x(),
-                                layerProto.requested_position().y()};
-    layer.size = {layerProto.size().w(), layerProto.size().h()};
-    layer.crop = generateRect(layerProto.crop());
-    layer.isOpaque = layerProto.is_opaque();
-    layer.invalidate = layerProto.invalidate();
-    layer.dataspace = layerProto.dataspace();
-    layer.pixelFormat = layerProto.pixel_format();
-    layer.color = {layerProto.color().r(), layerProto.color().g(), layerProto.color().b(),
-                    layerProto.color().a()};
-    layer.requestedColor = {layerProto.requested_color().r(), layerProto.requested_color().g(),
-                             layerProto.requested_color().b(), layerProto.requested_color().a()};
-    layer.flags = layerProto.flags();
-    layer.transform = generateTransform(layerProto.transform());
-    layer.requestedTransform = generateTransform(layerProto.requested_transform());
-    layer.activeBuffer = generateActiveBuffer(layerProto.active_buffer());
-    layer.bufferTransform = generateTransform(layerProto.buffer_transform());
-    layer.queuedFrames = layerProto.queued_frames();
-    layer.refreshPending = layerProto.refresh_pending();
-    layer.isProtected = layerProto.is_protected();
-    layer.isTrustedOverlay = layerProto.is_trusted_overlay();
-    layer.cornerRadius = layerProto.corner_radius();
-    layer.backgroundBlurRadius = layerProto.background_blur_radius();
-    for (const auto& entry : layerProto.metadata()) {
-        const std::string& dataStr = entry.second;
-        std::vector<uint8_t>& outData = layer.metadata.mMap[entry.first];
-        outData.resize(dataStr.size());
-        memcpy(outData.data(), dataStr.data(), dataStr.size());
-    }
-    layer.cornerRadiusCrop = generateFloatRect(layerProto.corner_radius_crop());
-    layer.shadowRadius = layerProto.shadow_radius();
-    layer.ownerUid = layerProto.owner_uid();
-    return layer;
-}
-
-LayerProtoParser::Region LayerProtoParser::generateRegion(
-        const perfetto::protos::RegionProto& regionProto) {
-    LayerProtoParser::Region region;
-    for (int i = 0; i < regionProto.rect_size(); i++) {
-        const perfetto::protos::RectProto& rectProto = regionProto.rect(i);
-        region.rects.push_back(generateRect(rectProto));
-    }
-
-    return region;
-}
-
-LayerProtoParser::Rect LayerProtoParser::generateRect(
-        const perfetto::protos::RectProto& rectProto) {
-    LayerProtoParser::Rect rect;
-    rect.left = rectProto.left();
-    rect.top = rectProto.top();
-    rect.right = rectProto.right();
-    rect.bottom = rectProto.bottom();
-
-    return rect;
-}
-
-LayerProtoParser::FloatRect LayerProtoParser::generateFloatRect(
-        const perfetto::protos::FloatRectProto& rectProto) {
-    LayerProtoParser::FloatRect rect;
-    rect.left = rectProto.left();
-    rect.top = rectProto.top();
-    rect.right = rectProto.right();
-    rect.bottom = rectProto.bottom();
-
-    return rect;
-}
-
-LayerProtoParser::Transform LayerProtoParser::generateTransform(
-        const perfetto::protos::TransformProto& transformProto) {
-    LayerProtoParser::Transform transform;
-    transform.dsdx = transformProto.dsdx();
-    transform.dtdx = transformProto.dtdx();
-    transform.dsdy = transformProto.dsdy();
-    transform.dtdy = transformProto.dtdy();
-
-    return transform;
-}
-
-LayerProtoParser::ActiveBuffer LayerProtoParser::generateActiveBuffer(
-        const perfetto::protos::ActiveBufferProto& activeBufferProto) {
-    LayerProtoParser::ActiveBuffer activeBuffer;
-    activeBuffer.width = activeBufferProto.width();
-    activeBuffer.height = activeBufferProto.height();
-    activeBuffer.stride = activeBufferProto.stride();
-    activeBuffer.format = activeBufferProto.format();
-
-    return activeBuffer;
-}
-
-void LayerProtoParser::updateChildrenAndRelative(const perfetto::protos::LayerProto& layerProto,
-                                                 std::unordered_map<int32_t, Layer*>& layerMap) {
-    auto currLayer = layerMap[layerProto.id()];
-
-    for (int i = 0; i < layerProto.children_size(); i++) {
-        if (layerMap.count(layerProto.children(i)) > 0) {
-            currLayer->children.push_back(layerMap[layerProto.children(i)]);
-        }
-    }
-
-    for (int i = 0; i < layerProto.relatives_size(); i++) {
-        if (layerMap.count(layerProto.relatives(i)) > 0) {
-            currLayer->relatives.push_back(layerMap[layerProto.relatives(i)]);
-        }
-    }
-
-    if (layerProto.has_parent()) {
-        if (layerMap.count(layerProto.parent()) > 0) {
-            currLayer->parent = layerMap[layerProto.parent()];
-        }
-    }
-
-    if (layerProto.has_z_order_relative_of()) {
-        if (layerMap.count(layerProto.z_order_relative_of()) > 0) {
-            currLayer->zOrderRelativeOf = layerMap[layerProto.z_order_relative_of()];
-        }
-    }
-}
-
-std::string LayerProtoParser::layerTreeToString(const LayerTree& layerTree) {
-    std::string result;
-    for (const LayerProtoParser::Layer* layer : layerTree.topLevelLayers) {
-        if (layer->zOrderRelativeOf != nullptr) {
-            continue;
-        }
-        result.append(layerToString(layer));
-    }
-
-    return result;
-}
-
-std::string LayerProtoParser::layerToString(const LayerProtoParser::Layer* layer) {
-    std::string result;
-
-    std::vector<Layer*> traverse(layer->relatives);
-    for (LayerProtoParser::Layer* child : layer->children) {
-        if (child->zOrderRelativeOf != nullptr) {
-            continue;
-        }
-
-        traverse.push_back(child);
-    }
-
-    std::sort(traverse.begin(), traverse.end(), sortLayers);
-
-    size_t i = 0;
-    for (; i < traverse.size(); i++) {
-        auto& relative = traverse[i];
-        if (relative->z >= 0) {
-            break;
-        }
-        result.append(layerToString(relative));
-    }
-    result.append(layer->to_string());
-    result.append("\n");
-    for (; i < traverse.size(); i++) {
-        auto& relative = traverse[i];
-        result.append(layerToString(relative));
-    }
-
-    return result;
-}
-
-std::string LayerProtoParser::ActiveBuffer::to_string() const {
-    return StringPrintf("[%4ux%4u:%4u,%s]", width, height, stride,
-                        decodePixelFormat(format).c_str());
-}
-
-std::string LayerProtoParser::Transform::to_string() const {
-    return StringPrintf("[%.2f, %.2f][%.2f, %.2f]", static_cast<double>(dsdx),
-                        static_cast<double>(dtdx), static_cast<double>(dsdy),
-                        static_cast<double>(dtdy));
-}
-
-std::string LayerProtoParser::Rect::to_string() const {
-    return StringPrintf("[%3d, %3d, %3d, %3d]", left, top, right, bottom);
-}
-
-std::string LayerProtoParser::FloatRect::to_string() const {
-    return StringPrintf("[%.2f, %.2f, %.2f, %.2f]", left, top, right, bottom);
-}
-
-std::string LayerProtoParser::Region::to_string(const char* what) const {
-    std::string result =
-            StringPrintf("  Region %s (this=%lx count=%d)\n", what, static_cast<unsigned long>(id),
-                         static_cast<int>(rects.size()));
-
-    for (auto& rect : rects) {
-        StringAppendF(&result, "    %s\n", rect.to_string().c_str());
-    }
-
-    return result;
-}
-
-std::string LayerProtoParser::Layer::to_string() const {
-    std::string result;
-    StringAppendF(&result, "+ %s (%s) uid=%d\n", type.c_str(), name.c_str(), ownerUid);
-    result.append(transparentRegion.to_string("TransparentRegion").c_str());
-    result.append(visibleRegion.to_string("VisibleRegion").c_str());
-    result.append(damageRegion.to_string("SurfaceDamageRegion").c_str());
-
-    StringAppendF(&result, "      layerStack=%4d, z=%9d, pos=(%g,%g), size=(%4d,%4d), ", layerStack,
-                  z, static_cast<double>(position.x), static_cast<double>(position.y), size.x,
-                  size.y);
-
-    StringAppendF(&result, "crop=%s, ", crop.to_string().c_str());
-    StringAppendF(&result, "cornerRadius=%f, ", cornerRadius);
-    StringAppendF(&result, "isProtected=%1d, ", isProtected);
-    StringAppendF(&result, "isTrustedOverlay=%1d, ", isTrustedOverlay);
-    StringAppendF(&result, "isOpaque=%1d, invalidate=%1d, ", isOpaque, invalidate);
-    StringAppendF(&result, "dataspace=%s, ", dataspace.c_str());
-    StringAppendF(&result, "defaultPixelFormat=%s, ", pixelFormat.c_str());
-    StringAppendF(&result, "backgroundBlurRadius=%1d, ", backgroundBlurRadius);
-    StringAppendF(&result, "color=(%.3f,%.3f,%.3f,%.3f), flags=0x%08x, ",
-                  static_cast<double>(color.r), static_cast<double>(color.g),
-                  static_cast<double>(color.b), static_cast<double>(color.a), flags);
-    StringAppendF(&result, "tr=%s", transform.to_string().c_str());
-    result.append("\n");
-    StringAppendF(&result, "      parent=%s\n", parent == nullptr ? "none" : parent->name.c_str());
-    StringAppendF(&result, "      zOrderRelativeOf=%s\n",
-                  zOrderRelativeOf == nullptr ? "none" : zOrderRelativeOf->name.c_str());
-    StringAppendF(&result, "      activeBuffer=%s,", activeBuffer.to_string().c_str());
-    StringAppendF(&result, " tr=%s", bufferTransform.to_string().c_str());
-    StringAppendF(&result, " queued-frames=%d", queuedFrames);
-    StringAppendF(&result, " metadata={");
-    bool first = true;
-    for (const auto& entry : metadata.mMap) {
-        if (!first) result.append(", ");
-        first = false;
-        result.append(metadata.itemToString(entry.first, ":"));
-    }
-    result.append("},");
-    StringAppendF(&result, " cornerRadiusCrop=%s, ", cornerRadiusCrop.to_string().c_str());
-    StringAppendF(&result, " shadowRadius=%.3f, ", shadowRadius);
-    return result;
-}
-
-} // namespace surfaceflinger
-} // namespace android
diff --git a/services/surfaceflinger/layerproto/include/layerproto/LayerProtoParser.h b/services/surfaceflinger/layerproto/include/layerproto/LayerProtoParser.h
deleted file mode 100644
index 79c3982..0000000
--- a/services/surfaceflinger/layerproto/include/layerproto/LayerProtoParser.h
+++ /dev/null
@@ -1,156 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#pragma once
-
-#include <layerproto/LayerProtoHeader.h>
-
-#include <gui/LayerMetadata.h>
-#include <math/vec4.h>
-
-#include <memory>
-#include <unordered_map>
-#include <vector>
-
-using android::gui::LayerMetadata;
-
-namespace android {
-namespace surfaceflinger {
-
-class LayerProtoParser {
-public:
-    class ActiveBuffer {
-    public:
-        uint32_t width;
-        uint32_t height;
-        uint32_t stride;
-        int32_t format;
-
-        std::string to_string() const;
-    };
-
-    class Transform {
-    public:
-        float dsdx;
-        float dtdx;
-        float dsdy;
-        float dtdy;
-
-        std::string to_string() const;
-    };
-
-    class Rect {
-    public:
-        int32_t left;
-        int32_t top;
-        int32_t right;
-        int32_t bottom;
-
-        std::string to_string() const;
-    };
-
-    class FloatRect {
-    public:
-        float left;
-        float top;
-        float right;
-        float bottom;
-
-        std::string to_string() const;
-    };
-
-    class Region {
-    public:
-        uint64_t id;
-        std::vector<Rect> rects;
-
-        std::string to_string(const char* what) const;
-    };
-
-    class Layer {
-    public:
-        int32_t id;
-        std::string name;
-        std::vector<Layer*> children;
-        std::vector<Layer*> relatives;
-        std::string type;
-        LayerProtoParser::Region transparentRegion;
-        LayerProtoParser::Region visibleRegion;
-        LayerProtoParser::Region damageRegion;
-        uint32_t layerStack;
-        int32_t z;
-        float2 position;
-        float2 requestedPosition;
-        int2 size;
-        LayerProtoParser::Rect crop;
-        bool isOpaque;
-        bool invalidate;
-        std::string dataspace;
-        std::string pixelFormat;
-        half4 color;
-        half4 requestedColor;
-        uint32_t flags;
-        Transform transform;
-        Transform requestedTransform;
-        Layer* parent = 0;
-        Layer* zOrderRelativeOf = 0;
-        LayerProtoParser::ActiveBuffer activeBuffer;
-        Transform bufferTransform;
-        int32_t queuedFrames;
-        bool refreshPending;
-        bool isProtected;
-        bool isTrustedOverlay;
-        float cornerRadius;
-        int backgroundBlurRadius;
-        LayerMetadata metadata;
-        LayerProtoParser::FloatRect cornerRadiusCrop;
-        float shadowRadius;
-        uid_t ownerUid;
-
-        std::string to_string() const;
-    };
-
-    class LayerTree {
-    public:
-        // all layers in LayersProto and in the original order
-        std::vector<Layer> allLayers;
-
-        // pointers to top-level layers in allLayers
-        std::vector<Layer*> topLevelLayers;
-    };
-
-    static LayerTree generateLayerTree(const perfetto::protos::LayersProto& layersProto);
-    static std::string layerTreeToString(const LayerTree& layerTree);
-
-private:
-    static std::vector<Layer> generateLayerList(const perfetto::protos::LayersProto& layersProto);
-    static LayerProtoParser::Layer generateLayer(const perfetto::protos::LayerProto& layerProto);
-    static LayerProtoParser::Region generateRegion(
-            const perfetto::protos::RegionProto& regionProto);
-    static LayerProtoParser::Rect generateRect(const perfetto::protos::RectProto& rectProto);
-    static LayerProtoParser::FloatRect generateFloatRect(
-            const perfetto::protos::FloatRectProto& rectProto);
-    static LayerProtoParser::Transform generateTransform(
-            const perfetto::protos::TransformProto& transformProto);
-    static LayerProtoParser::ActiveBuffer generateActiveBuffer(
-            const perfetto::protos::ActiveBufferProto& activeBufferProto);
-    static void updateChildrenAndRelative(const perfetto::protos::LayerProto& layerProto,
-                                          std::unordered_map<int32_t, Layer*>& layerMap);
-
-    static std::string layerToString(const LayerProtoParser::Layer* layer);
-};
-
-} // namespace surfaceflinger
-} // namespace android
diff --git a/services/surfaceflinger/tests/Android.bp b/services/surfaceflinger/tests/Android.bp
index 38fc977..4d5c0fd 100644
--- a/services/surfaceflinger/tests/Android.bp
+++ b/services/surfaceflinger/tests/Android.bp
@@ -28,6 +28,7 @@
         "android.hardware.graphics.common-ndk_shared",
         "surfaceflinger_defaults",
         "libsurfaceflinger_common_test_deps",
+        "libsurfaceflinger_proto_deps",
     ],
     test_suites: ["device-tests"],
     srcs: [
@@ -58,14 +59,12 @@
         "ScreenCapture_test.cpp",
         "SetFrameRate_test.cpp",
         "SetGeometry_test.cpp",
-        "Stress_test.cpp",
         "TextureFiltering_test.cpp",
         "VirtualDisplay_test.cpp",
         "WindowInfosListener_test.cpp",
     ],
     data: ["SurfaceFlinger_test.filter"],
     static_libs: [
-        "liblayers_proto",
         "android.hardware.graphics.composer@2.1",
         "libsurfaceflinger_common",
     ],
@@ -121,7 +120,6 @@
         "libEGL",
         "libGLESv2",
         "libgui",
-        "liblayers_proto",
         "liblog",
         "libprotobuf-cpp-full",
         "libui",
diff --git a/services/surfaceflinger/tests/Credentials_test.cpp b/services/surfaceflinger/tests/Credentials_test.cpp
index ebe11fb..d355e72 100644
--- a/services/surfaceflinger/tests/Credentials_test.cpp
+++ b/services/surfaceflinger/tests/Credentials_test.cpp
@@ -26,6 +26,7 @@
 #include <private/android_filesystem_config.h>
 #include <private/gui/ComposerServiceAIDL.h>
 #include <ui/DisplayMode.h>
+#include <ui/DisplayState.h>
 #include <ui/DynamicDisplayInfo.h>
 #include <utils/String8.h>
 #include <functional>
@@ -276,7 +277,7 @@
 TEST_F(CredentialsTest, CaptureLayersTest) {
     setupBackgroundSurface();
     sp<GraphicBuffer> outBuffer;
-    std::function<status_t()> condition = [=]() {
+    std::function<status_t()> condition = [=, this]() {
         LayerCaptureArgs captureArgs;
         captureArgs.layerHandle = mBGSurfaceControl->getHandle();
         captureArgs.sourceCrop = {0, 0, 1, 1};
@@ -396,6 +397,56 @@
     }
 }
 
+TEST_F(CredentialsTest, DisplayTransactionPermissionTest) {
+    const auto display = getFirstDisplayToken();
+
+    ui::DisplayState displayState;
+    ASSERT_EQ(NO_ERROR, SurfaceComposerClient::getDisplayState(display, &displayState));
+    const ui::Rotation initialOrientation = displayState.orientation;
+
+    // Set display orientation from an untrusted process. This should fail silently.
+    {
+        UIDFaker f{AID_BIN};
+        Transaction transaction;
+        Rect layerStackRect;
+        Rect displayRect;
+        transaction.setDisplayProjection(display, initialOrientation + ui::ROTATION_90,
+                                         layerStackRect, displayRect);
+        transaction.apply(/*synchronous=*/true);
+    }
+
+    // Verify that the display orientation did not change.
+    ASSERT_EQ(NO_ERROR, SurfaceComposerClient::getDisplayState(display, &displayState));
+    ASSERT_EQ(initialOrientation, displayState.orientation);
+
+    // Set display orientation from a trusted process.
+    {
+        UIDFaker f{AID_SYSTEM};
+        Transaction transaction;
+        Rect layerStackRect;
+        Rect displayRect;
+        transaction.setDisplayProjection(display, initialOrientation + ui::ROTATION_90,
+                                         layerStackRect, displayRect);
+        transaction.apply(/*synchronous=*/true);
+    }
+
+    // Verify that the display orientation did change.
+    ASSERT_EQ(NO_ERROR, SurfaceComposerClient::getDisplayState(display, &displayState));
+    ASSERT_EQ(initialOrientation + ui::ROTATION_90, displayState.orientation);
+
+    // Reset orientation
+    {
+        UIDFaker f{AID_SYSTEM};
+        Transaction transaction;
+        Rect layerStackRect;
+        Rect displayRect;
+        transaction.setDisplayProjection(display, initialOrientation, layerStackRect, displayRect);
+        transaction.apply(/*synchronous=*/true);
+    }
+    ASSERT_EQ(NO_ERROR, SurfaceComposerClient::getDisplayState(display, &displayState));
+    ASSERT_EQ(initialOrientation, displayState.orientation);
+}
+
 } // namespace android
 
 // TODO(b/129481165): remove the #pragma below and fix conversion issues
diff --git a/services/surfaceflinger/tests/Stress_test.cpp b/services/surfaceflinger/tests/Stress_test.cpp
deleted file mode 100644
index b30df5e..0000000
--- a/services/surfaceflinger/tests/Stress_test.cpp
+++ /dev/null
@@ -1,116 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// TODO(b/129481165): remove the #pragma below and fix conversion issues
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wconversion"
-
-#include <gtest/gtest.h>
-
-#include <gui/SurfaceComposerClient.h>
-
-#include <utils/String8.h>
-
-#include <thread>
-#include <functional>
-#include <layerproto/LayerProtoParser.h>
-
-namespace android {
-
-TEST(SurfaceFlingerStress, create_and_destroy) {
-    auto do_stress = []() {
-        sp<SurfaceComposerClient> client = sp<SurfaceComposerClient>::make();
-        ASSERT_EQ(NO_ERROR, client->initCheck());
-        for (int j = 0; j < 1000; j++) {
-            auto surf = client->createSurface(String8("t"), 100, 100,
-                    PIXEL_FORMAT_RGBA_8888, 0);
-            ASSERT_TRUE(surf != nullptr);
-            surf.clear();
-        }
-    };
-
-    std::vector<std::thread> threads;
-    for (int i = 0; i < 10; i++) {
-        threads.push_back(std::thread(do_stress));
-    }
-    for (auto& thread : threads) {
-        thread.join();
-    }
-}
-
-perfetto::protos::LayersProto generateLayerProto() {
-    perfetto::protos::LayersProto layersProto;
-    std::array<perfetto::protos::LayerProto*, 10> layers = {};
-    for (size_t i = 0; i < layers.size(); ++i) {
-        layers[i] = layersProto.add_layers();
-        layers[i]->set_id(i);
-    }
-
-    layers[0]->add_children(1);
-    layers[1]->set_parent(0);
-    layers[0]->add_children(2);
-    layers[2]->set_parent(0);
-    layers[0]->add_children(3);
-    layers[3]->set_parent(0);
-    layers[2]->add_children(4);
-    layers[4]->set_parent(2);
-    layers[3]->add_children(5);
-    layers[5]->set_parent(3);
-    layers[5]->add_children(6);
-    layers[6]->set_parent(5);
-    layers[5]->add_children(7);
-    layers[7]->set_parent(5);
-    layers[6]->add_children(8);
-    layers[8]->set_parent(6);
-
-    layers[4]->set_z_order_relative_of(3);
-    layers[3]->add_relatives(4);
-    layers[8]->set_z_order_relative_of(9);
-    layers[9]->add_relatives(8);
-    layers[3]->set_z_order_relative_of(1);
-    layers[1]->add_relatives(3);
-
-/* ----------------------------
- *       - 0 -      - 9 -
- *      /  |  \
- *     1   2   3(1)
- *         |    |
- *         4(3) 5
- *             / \
- *            6   7
- *            |
- *            8(9)
- * -------------------------- */
-
-    return layersProto;
-}
-
-TEST(LayerProtoStress, mem_info) {
-    std::string cmd = "dumpsys meminfo ";
-    cmd += std::to_string(getpid());
-    system(cmd.c_str());
-    for (int i = 0; i < 100000; i++) {
-        perfetto::protos::LayersProto layersProto = generateLayerProto();
-        auto layerTree = surfaceflinger::LayerProtoParser::generateLayerTree(layersProto);
-        surfaceflinger::LayerProtoParser::layerTreeToString(layerTree);
-    }
-    system(cmd.c_str());
-}
-
-}
-
-// TODO(b/129481165): remove the #pragma below and fix conversion issues
-#pragma clang diagnostic pop // ignored "-Wconversion"
diff --git a/services/surfaceflinger/tests/common/LayerLifecycleManagerHelper.h b/services/surfaceflinger/tests/common/LayerLifecycleManagerHelper.h
index 2e5913b..8b9d14b 100644
--- a/services/surfaceflinger/tests/common/LayerLifecycleManagerHelper.h
+++ b/services/surfaceflinger/tests/common/LayerLifecycleManagerHelper.h
@@ -472,6 +472,18 @@
         mLifecycleManager.applyTransactions(transactions);
     }
 
+    void setGameMode(uint32_t id, gui::GameMode gameMode) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+        transactions.back().states.front().state.what = layer_state_t::eMetadataChanged;
+        transactions.back().states.front().state.metadata = LayerMetadata();
+        transactions.back().states.front().state.metadata.setInt32(METADATA_GAME_MODE,
+                                                                   static_cast<int32_t>(gameMode));
+        transactions.back().states.front().layerId = id;
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
 private:
     LayerLifecycleManager& mLifecycleManager;
 };
diff --git a/services/surfaceflinger/tests/unittests/Android.bp b/services/surfaceflinger/tests/unittests/Android.bp
index 9ebef8c..d9d239d 100644
--- a/services/surfaceflinger/tests/unittests/Android.bp
+++ b/services/surfaceflinger/tests/unittests/Android.bp
@@ -83,7 +83,6 @@
         "FrameRateSelectionPriorityTest.cpp",
         "FrameRateSelectionStrategyTest.cpp",
         "FrameTimelineTest.cpp",
-        "GameModeTest.cpp",
         "HWComposerTest.cpp",
         "JankTrackerTest.cpp",
         "OneShotTimerTest.cpp",
@@ -94,7 +93,6 @@
         "LayerHierarchyTest.cpp",
         "LayerLifecycleManagerTest.cpp",
         "LayerSnapshotTest.cpp",
-        "LayerTest.cpp",
         "LayerTestUtils.cpp",
         "MessageQueueTest.cpp",
         "PowerAdvisorTest.cpp",
@@ -117,7 +115,6 @@
         "SurfaceFlinger_SetDisplayStateTest.cpp",
         "SurfaceFlinger_SetPowerModeInternalTest.cpp",
         "SurfaceFlinger_SetupNewDisplayDeviceInternalTest.cpp",
-        "SurfaceFlinger_UpdateLayerMetadataSnapshotTest.cpp",
         "SchedulerTest.cpp",
         "SetFrameRateTest.cpp",
         "RefreshRateSelectorTest.cpp",
@@ -153,6 +150,7 @@
         "android.hardware.power-ndk_static",
         "librenderengine_deps",
         "libsurfaceflinger_common_test_deps",
+        "libsurfaceflinger_proto_deps",
     ],
     static_libs: [
         "android.hardware.common-V2-ndk",
@@ -171,7 +169,6 @@
         "libframetimeline",
         "libgmock",
         "libgui_mocks",
-        "liblayers_proto",
         "libperfetto_client_experimental",
         "librenderengine",
         "librenderengine_mocks",
diff --git a/services/surfaceflinger/tests/unittests/FrameRateSelectionStrategyTest.cpp b/services/surfaceflinger/tests/unittests/FrameRateSelectionStrategyTest.cpp
index 5c742d7..866eb08 100644
--- a/services/surfaceflinger/tests/unittests/FrameRateSelectionStrategyTest.cpp
+++ b/services/surfaceflinger/tests/unittests/FrameRateSelectionStrategyTest.cpp
@@ -28,6 +28,7 @@
 
 namespace android {
 
+using testing::_;
 using testing::DoAll;
 using testing::Mock;
 using testing::SetArgPointee;
@@ -91,7 +92,7 @@
                          PrintToStringParamName);
 
 TEST_P(FrameRateSelectionStrategyTest, SetAndGet) {
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 
     const auto& layerFactory = GetParam();
     auto layer = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
@@ -104,7 +105,7 @@
 }
 
 TEST_P(FrameRateSelectionStrategyTest, SetChildOverrideChildren) {
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 
     const auto& layerFactory = GetParam();
     auto parent = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
@@ -128,7 +129,7 @@
 }
 
 TEST_P(FrameRateSelectionStrategyTest, SetParentOverrideChildren) {
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 
     const auto& layerFactory = GetParam();
     auto layer1 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
@@ -169,7 +170,7 @@
 }
 
 TEST_P(FrameRateSelectionStrategyTest, OverrideChildrenAndSelf) {
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 
     const auto& layerFactory = GetParam();
     auto layer1 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
diff --git a/services/surfaceflinger/tests/unittests/GameModeTest.cpp b/services/surfaceflinger/tests/unittests/GameModeTest.cpp
deleted file mode 100644
index 1b5c6e7..0000000
--- a/services/surfaceflinger/tests/unittests/GameModeTest.cpp
+++ /dev/null
@@ -1,134 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#undef LOG_TAG
-#define LOG_TAG "LibSurfaceFlingerUnittests"
-
-#include <gmock/gmock.h>
-#include <gtest/gtest.h>
-#include <gui/LayerMetadata.h>
-#include <gui/SurfaceComposerClient.h>
-#include <log/log.h>
-
-#include "TestableSurfaceFlinger.h"
-#include "mock/DisplayHardware/MockComposer.h"
-
-namespace android {
-
-using testing::_;
-using testing::Mock;
-using testing::Return;
-
-using gui::GameMode;
-using gui::LayerMetadata;
-
-class GameModeTest : public testing::Test {
-public:
-    GameModeTest() {
-        const ::testing::TestInfo* const test_info =
-                ::testing::UnitTest::GetInstance()->current_test_info();
-        ALOGD("**** Setting up for %s.%s\n", test_info->test_case_name(), test_info->name());
-        mFlinger.setupMockScheduler();
-        setupComposer();
-    }
-
-    ~GameModeTest() {
-        const ::testing::TestInfo* const test_info =
-                ::testing::UnitTest::GetInstance()->current_test_info();
-        ALOGD("**** Tearing down after %s.%s\n", test_info->test_case_name(), test_info->name());
-    }
-
-    sp<Layer> createLayer() {
-        sp<Client> client;
-        LayerCreationArgs args(mFlinger.flinger(), client, "layer", 0, LayerMetadata());
-        return sp<Layer>::make(args);
-    }
-
-    void setupComposer() {
-        mComposer = new Hwc2::mock::Composer();
-        mFlinger.setupComposer(std::unique_ptr<Hwc2::Composer>(mComposer));
-
-        Mock::VerifyAndClear(mComposer);
-    }
-
-    // Mocks the behavior of applying a transaction from WMShell
-    void setGameModeMetadata(sp<Layer> layer, GameMode gameMode) {
-        mLayerMetadata.setInt32(gui::METADATA_GAME_MODE, static_cast<int32_t>(gameMode));
-        layer->setMetadata(mLayerMetadata);
-        layer->setGameModeForTree(gameMode);
-    }
-
-    TestableSurfaceFlinger mFlinger;
-    Hwc2::mock::Composer* mComposer = nullptr;
-    client_cache_t mClientCache;
-    LayerMetadata mLayerMetadata;
-};
-
-TEST_F(GameModeTest, SetGameModeSetsForAllCurrentChildren) {
-    sp<Layer> rootLayer = createLayer();
-    sp<Layer> childLayer1 = createLayer();
-    sp<Layer> childLayer2 = createLayer();
-    rootLayer->addChild(childLayer1);
-    rootLayer->addChild(childLayer2);
-    rootLayer->setGameModeForTree(GameMode::Performance);
-
-    EXPECT_EQ(rootLayer->getGameMode(), GameMode::Performance);
-    EXPECT_EQ(childLayer1->getGameMode(), GameMode::Performance);
-    EXPECT_EQ(childLayer2->getGameMode(), GameMode::Performance);
-}
-
-TEST_F(GameModeTest, AddChildAppliesGameModeFromParent) {
-    sp<Layer> rootLayer = createLayer();
-    sp<Layer> childLayer = createLayer();
-    rootLayer->setGameModeForTree(GameMode::Performance);
-    rootLayer->addChild(childLayer);
-
-    EXPECT_EQ(rootLayer->getGameMode(), GameMode::Performance);
-    EXPECT_EQ(childLayer->getGameMode(), GameMode::Performance);
-}
-
-TEST_F(GameModeTest, RemoveChildResetsGameMode) {
-    sp<Layer> rootLayer = createLayer();
-    sp<Layer> childLayer = createLayer();
-    rootLayer->setGameModeForTree(GameMode::Performance);
-    rootLayer->addChild(childLayer);
-
-    EXPECT_EQ(rootLayer->getGameMode(), GameMode::Performance);
-    EXPECT_EQ(childLayer->getGameMode(), GameMode::Performance);
-
-    rootLayer->removeChild(childLayer);
-    EXPECT_EQ(childLayer->getGameMode(), GameMode::Unsupported);
-}
-
-TEST_F(GameModeTest, ReparentingDoesNotOverrideMetadata) {
-    sp<Layer> rootLayer = createLayer();
-    sp<Layer> childLayer1 = createLayer();
-    sp<Layer> childLayer2 = createLayer();
-    rootLayer->setGameModeForTree(GameMode::Standard);
-    rootLayer->addChild(childLayer1);
-
-    setGameModeMetadata(childLayer2, GameMode::Performance);
-    rootLayer->addChild(childLayer2);
-
-    EXPECT_EQ(rootLayer->getGameMode(), GameMode::Standard);
-    EXPECT_EQ(childLayer1->getGameMode(), GameMode::Standard);
-    EXPECT_EQ(childLayer2->getGameMode(), GameMode::Performance);
-
-    rootLayer->removeChild(childLayer2);
-    EXPECT_EQ(childLayer2->getGameMode(), GameMode::Performance);
-}
-
-} // namespace android
diff --git a/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp b/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp
index 54d4659..2bb864a 100644
--- a/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp
+++ b/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp
@@ -281,22 +281,40 @@
     EXPECT_EQ(getSnapshot(1)->clientChanges, layer_state_t::eColorChanged);
 }
 
-TEST_F(LayerSnapshotTest, GameMode) {
-    std::vector<TransactionState> transactions;
-    transactions.emplace_back();
-    transactions.back().states.push_back({});
-    transactions.back().states.front().state.what = layer_state_t::eMetadataChanged;
-    transactions.back().states.front().state.metadata = LayerMetadata();
-    transactions.back().states.front().state.metadata.setInt32(METADATA_GAME_MODE, 42);
-    transactions.back().states.front().layerId = 1;
-    transactions.back().states.front().state.layerId = static_cast<int32_t>(1);
-    mLifecycleManager.applyTransactions(transactions);
+TEST_F(LayerSnapshotTest, ChildrenInheritGameMode) {
+    setGameMode(1, gui::GameMode::Performance);
     EXPECT_EQ(mLifecycleManager.getGlobalChanges(),
               RequestedLayerState::Changes::GameMode | RequestedLayerState::Changes::Metadata);
     UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
     EXPECT_EQ(getSnapshot(1)->clientChanges, layer_state_t::eMetadataChanged);
-    EXPECT_EQ(static_cast<int32_t>(getSnapshot(1)->gameMode), 42);
-    EXPECT_EQ(static_cast<int32_t>(getSnapshot(11)->gameMode), 42);
+    EXPECT_EQ(getSnapshot(1)->gameMode, gui::GameMode::Performance);
+    EXPECT_EQ(getSnapshot(11)->gameMode, gui::GameMode::Performance);
+}
+
+TEST_F(LayerSnapshotTest, ChildrenCanOverrideGameMode) {
+    setGameMode(1, gui::GameMode::Performance);
+    setGameMode(11, gui::GameMode::Battery);
+    EXPECT_EQ(mLifecycleManager.getGlobalChanges(),
+              RequestedLayerState::Changes::GameMode | RequestedLayerState::Changes::Metadata);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_EQ(getSnapshot(1)->clientChanges, layer_state_t::eMetadataChanged);
+    EXPECT_EQ(getSnapshot(1)->gameMode, gui::GameMode::Performance);
+    EXPECT_EQ(getSnapshot(11)->gameMode, gui::GameMode::Battery);
+}
+
+TEST_F(LayerSnapshotTest, ReparentingUpdatesGameMode) {
+    setGameMode(1, gui::GameMode::Performance);
+    EXPECT_EQ(mLifecycleManager.getGlobalChanges(),
+              RequestedLayerState::Changes::GameMode | RequestedLayerState::Changes::Metadata);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_EQ(getSnapshot(1)->clientChanges, layer_state_t::eMetadataChanged);
+    EXPECT_EQ(getSnapshot(1)->gameMode, gui::GameMode::Performance);
+    EXPECT_EQ(getSnapshot(2)->gameMode, gui::GameMode::Unsupported);
+
+    reparentLayer(2, 1);
+    setZ(2, 2);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_EQ(getSnapshot(2)->gameMode, gui::GameMode::Performance);
 }
 
 TEST_F(LayerSnapshotTest, UpdateMetadata) {
@@ -1539,4 +1557,48 @@
             gui::WindowInfo::InputConfig::TRUSTED_OVERLAY));
 }
 
+static constexpr const FloatRect LARGE_FLOAT_RECT{std::numeric_limits<float>::min(),
+                                                  std::numeric_limits<float>::min(),
+                                                  std::numeric_limits<float>::max(),
+                                                  std::numeric_limits<float>::max()};
+TEST_F(LayerSnapshotTest, layerVisibleByDefault) {
+    DisplayInfo info;
+    info.info.logicalHeight = 1000000;
+    info.info.logicalWidth = 1000000;
+    mFrontEndDisplayInfos.emplace_or_replace(ui::LayerStack::fromValue(1), info);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_FALSE(getSnapshot(1)->isHiddenByPolicy());
+}
+
+TEST_F(LayerSnapshotTest, hideLayerWithZeroMatrix) {
+    DisplayInfo info;
+    info.info.logicalHeight = 1000000;
+    info.info.logicalWidth = 1000000;
+    mFrontEndDisplayInfos.emplace_or_replace(ui::LayerStack::fromValue(1), info);
+    setMatrix(1, 0.f, 0.f, 0.f, 0.f);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, {2});
+    EXPECT_TRUE(getSnapshot(1)->isHiddenByPolicy());
+}
+
+TEST_F(LayerSnapshotTest, hideLayerWithInfMatrix) {
+    DisplayInfo info;
+    info.info.logicalHeight = 1000000;
+    info.info.logicalWidth = 1000000;
+    mFrontEndDisplayInfos.emplace_or_replace(ui::LayerStack::fromValue(1), info);
+    setMatrix(1, std::numeric_limits<float>::infinity(), 0.f, 0.f,
+              std::numeric_limits<float>::infinity());
+    UPDATE_AND_VERIFY(mSnapshotBuilder, {2});
+    EXPECT_TRUE(getSnapshot(1)->isHiddenByPolicy());
+}
+
+TEST_F(LayerSnapshotTest, hideLayerWithNanMatrix) {
+    DisplayInfo info;
+    info.info.logicalHeight = 1000000;
+    info.info.logicalWidth = 1000000;
+    mFrontEndDisplayInfos.emplace_or_replace(ui::LayerStack::fromValue(1), info);
+    setMatrix(1, std::numeric_limits<float>::quiet_NaN(), 0.f, 0.f,
+              std::numeric_limits<float>::quiet_NaN());
+    UPDATE_AND_VERIFY(mSnapshotBuilder, {2});
+    EXPECT_TRUE(getSnapshot(1)->isHiddenByPolicy());
+}
 } // namespace android::surfaceflinger::frontend
diff --git a/services/surfaceflinger/tests/unittests/LayerTest.cpp b/services/surfaceflinger/tests/unittests/LayerTest.cpp
deleted file mode 100644
index 95e54f6..0000000
--- a/services/surfaceflinger/tests/unittests/LayerTest.cpp
+++ /dev/null
@@ -1,86 +0,0 @@
-/*
- * Copyright (C) 2022 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#undef LOG_TAG
-#define LOG_TAG "LibSurfaceFlingerUnittests"
-
-#include <gtest/gtest.h>
-#include <ui/FloatRect.h>
-#include <ui/Transform.h>
-#include <limits>
-
-#include "LayerTestUtils.h"
-#include "TestableSurfaceFlinger.h"
-
-namespace android {
-namespace {
-
-class LayerTest : public BaseLayerTest {
-protected:
-    static constexpr const float MIN_FLOAT = std::numeric_limits<float>::min();
-    static constexpr const float MAX_FLOAT = std::numeric_limits<float>::max();
-    static constexpr const FloatRect LARGE_FLOAT_RECT{MIN_FLOAT, MIN_FLOAT, MAX_FLOAT, MAX_FLOAT};
-};
-
-INSTANTIATE_TEST_SUITE_P(PerLayerType, LayerTest,
-                         testing::Values(std::make_shared<BufferStateLayerFactory>(),
-                                         std::make_shared<EffectLayerFactory>()),
-                         PrintToStringParamName);
-
-TEST_P(LayerTest, layerVisibleByDefault) {
-    sp<Layer> layer = GetParam()->createLayer(mFlinger);
-    layer->updateGeometry();
-    layer->computeBounds(LARGE_FLOAT_RECT, ui::Transform(), 0.f);
-    ASSERT_FALSE(layer->isHiddenByPolicy());
-}
-
-TEST_P(LayerTest, hideLayerWithZeroMatrix) {
-    sp<Layer> layer = GetParam()->createLayer(mFlinger);
-
-    layer_state_t::matrix22_t matrix{0, 0, 0, 0};
-    layer->setMatrix(matrix);
-    layer->updateGeometry();
-    layer->computeBounds(LARGE_FLOAT_RECT, ui::Transform(), 0.f);
-
-    ASSERT_TRUE(layer->isHiddenByPolicy());
-}
-
-TEST_P(LayerTest, hideLayerWithInfMatrix) {
-    sp<Layer> layer = GetParam()->createLayer(mFlinger);
-
-    constexpr const float INF = std::numeric_limits<float>::infinity();
-    layer_state_t::matrix22_t matrix{INF, 0, 0, INF};
-    layer->setMatrix(matrix);
-    layer->updateGeometry();
-    layer->computeBounds(LARGE_FLOAT_RECT, ui::Transform(), 0.f);
-
-    ASSERT_TRUE(layer->isHiddenByPolicy());
-}
-
-TEST_P(LayerTest, hideLayerWithNanMatrix) {
-    sp<Layer> layer = GetParam()->createLayer(mFlinger);
-
-    constexpr const float QUIET_NAN = std::numeric_limits<float>::quiet_NaN();
-    layer_state_t::matrix22_t matrix{QUIET_NAN, 0, 0, QUIET_NAN};
-    layer->setMatrix(matrix);
-    layer->updateGeometry();
-    layer->computeBounds(LARGE_FLOAT_RECT, ui::Transform(), 0.f);
-
-    ASSERT_TRUE(layer->isHiddenByPolicy());
-}
-
-} // namespace
-} // namespace android
diff --git a/services/surfaceflinger/tests/unittests/SchedulerTest.cpp b/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
index fc54a8b..3df724a 100644
--- a/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
@@ -34,6 +34,7 @@
 #include "mock/MockSchedulerCallback.h"
 
 #include <FrontEnd/LayerHierarchy.h>
+#include <scheduler/FrameTime.h>
 
 #include <com_android_graphics_surfaceflinger_flags.h>
 #include "FpsOps.h"
@@ -607,7 +608,8 @@
                                              TimePoint::fromNs(2000)));
 
     // Not crossing the min frame period
-    vrrTracker->onFrameBegin(TimePoint::fromNs(2000), TimePoint::fromNs(1500));
+    vrrTracker->onFrameBegin(TimePoint::fromNs(2000),
+                             {TimePoint::fromNs(1500), TimePoint::fromNs(1500)});
     EXPECT_EQ(Fps::fromPeriodNsecs(1000),
               scheduler.getNextFrameInterval(kMode->getPhysicalDisplayId(),
                                              TimePoint::fromNs(2500)));
diff --git a/services/surfaceflinger/tests/unittests/SetFrameRateTest.cpp b/services/surfaceflinger/tests/unittests/SetFrameRateTest.cpp
index 9899d42..4705dd1 100644
--- a/services/surfaceflinger/tests/unittests/SetFrameRateTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SetFrameRateTest.cpp
@@ -35,7 +35,7 @@
 #include "mock/MockVsyncController.h"
 
 namespace android {
-
+using testing::_;
 using testing::DoAll;
 using testing::Mock;
 using testing::SetArgPointee;
@@ -93,7 +93,7 @@
 namespace {
 
 TEST_P(SetFrameRateTest, SetAndGet) {
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 
     const auto& layerFactory = GetParam();
 
@@ -104,7 +104,7 @@
 }
 
 TEST_P(SetFrameRateTest, SetAndGetParent) {
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 
     const auto& layerFactory = GetParam();
 
@@ -129,7 +129,7 @@
 }
 
 TEST_P(SetFrameRateTest, SetAndGetParentAllVote) {
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 
     const auto& layerFactory = GetParam();
 
@@ -168,7 +168,7 @@
 }
 
 TEST_P(SetFrameRateTest, SetAndGetChild) {
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 
     const auto& layerFactory = GetParam();
 
@@ -193,7 +193,7 @@
 }
 
 TEST_P(SetFrameRateTest, SetAndGetChildAllVote) {
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 
     const auto& layerFactory = GetParam();
 
@@ -232,7 +232,7 @@
 }
 
 TEST_P(SetFrameRateTest, SetAndGetChildAddAfterVote) {
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 
     const auto& layerFactory = GetParam();
 
@@ -262,7 +262,7 @@
 }
 
 TEST_P(SetFrameRateTest, SetAndGetChildRemoveAfterVote) {
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 
     const auto& layerFactory = GetParam();
 
@@ -293,7 +293,7 @@
 }
 
 TEST_P(SetFrameRateTest, SetAndGetParentNotInTree) {
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 
     const auto& layerFactory = GetParam();
 
@@ -352,7 +352,7 @@
 }
 
 TEST_P(SetFrameRateTest, addChildForParentWithTreeVote) {
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 
     const auto& layerFactory = GetParam();
 
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_CreateDisplayTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_CreateDisplayTest.cpp
index e5f2a91..2d3ebb4 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_CreateDisplayTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_CreateDisplayTest.cpp
@@ -97,7 +97,7 @@
     // Cleanup conditions
 
     // Creating the display commits a display transaction.
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 }
 
 TEST_F(CreateDisplayTest, createDisplaySetsCurrentStateForSecureDisplay) {
@@ -129,7 +129,7 @@
     // Cleanup conditions
 
     // Creating the display commits a display transaction.
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 }
 
 TEST_F(CreateDisplayTest, createDisplaySetsCurrentStateForUniqueId) {
@@ -159,7 +159,7 @@
     // Cleanup conditions
 
     // Creating the display commits a display transaction.
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 }
 
 // Requesting 0 tells SF not to do anything, i.e., default to refresh as physical displays
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_DestroyDisplayTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_DestroyDisplayTest.cpp
index f8ad8e1..df8f68f 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_DestroyDisplayTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_DestroyDisplayTest.cpp
@@ -38,7 +38,7 @@
     // Call Expectations
 
     // Destroying the display commits a display transaction.
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 
     // --------------------------------------------------------------------
     // Invocation
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_HotplugTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_HotplugTest.cpp
index 897f9a0..aef467a 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_HotplugTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_HotplugTest.cpp
@@ -48,7 +48,7 @@
 
 TEST_F(HotplugTest, schedulesFrameToCommitDisplayTransaction) {
     EXPECT_CALL(*mFlinger.scheduler(), scheduleConfigure()).Times(1);
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 
     constexpr HWDisplayId displayId1 = 456;
     mFlinger.onComposerHalHotplugEvent(displayId1, DisplayHotplugEvent::DISCONNECTED);
@@ -73,7 +73,7 @@
             .WillOnce(Return(Error::NONE));
 
     // A single commit should be scheduled for both configure calls.
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 
     ExternalDisplay::injectPendingHotplugEvent(this, Connection::CONNECTED);
     mFlinger.configure();
@@ -116,7 +116,7 @@
                 setVsyncEnabled(ExternalDisplay::HWC_DISPLAY_ID, IComposerClient::Vsync::DISABLE))
             .WillOnce(Return(Error::NONE));
 
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 
     ExternalDisplay::injectPendingHotplugEvent(this, Connection::CONNECTED);
     mFlinger.configure();
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_InitializeDisplaysTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_InitializeDisplaysTest.cpp
index eaf4684..5231965 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_InitializeDisplaysTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_InitializeDisplaysTest.cpp
@@ -28,7 +28,7 @@
 
 TEST_F(InitializeDisplaysTest, initializesDisplays) {
     // Scheduled by the display transaction, and by powering on each display.
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(3);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(3);
 
     EXPECT_CALL(static_cast<mock::VSyncTracker&>(
                         mFlinger.scheduler()->getVsyncSchedule()->getTracker()),
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_SetPowerModeInternalTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_SetPowerModeInternalTest.cpp
index 83e2f98..fed7b2e 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_SetPowerModeInternalTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_SetPowerModeInternalTest.cpp
@@ -271,7 +271,7 @@
     }
 
     static void setupRepaintEverythingCallExpectations(DisplayTransactionTest* test) {
-        EXPECT_CALL(*test->mFlinger.scheduler(), scheduleFrame()).Times(1);
+        EXPECT_CALL(*test->mFlinger.scheduler(), scheduleFrame(_)).Times(1);
     }
 
     static void setupComposerCallExpectations(DisplayTransactionTest* test, PowerMode mode) {
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_UpdateLayerMetadataSnapshotTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_UpdateLayerMetadataSnapshotTest.cpp
deleted file mode 100644
index 0e5f1ea..0000000
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_UpdateLayerMetadataSnapshotTest.cpp
+++ /dev/null
@@ -1,194 +0,0 @@
-#include <gmock/gmock.h>
-#include <gtest/gtest.h>
-#include <gui/LayerMetadata.h>
-
-#include "TestableSurfaceFlinger.h"
-
-namespace android {
-
-using testing::_;
-using testing::Return;
-
-class SurfaceFlingerUpdateLayerMetadataSnapshotTest : public testing::Test {
-public:
-    SurfaceFlingerUpdateLayerMetadataSnapshotTest() { mFlinger.setupMockScheduler(); }
-
-protected:
-    sp<Layer> createLayer(const char* name, LayerMetadata& inOutlayerMetadata) {
-        LayerCreationArgs args =
-                LayerCreationArgs{mFlinger.flinger(), nullptr, name, 0, inOutlayerMetadata};
-        inOutlayerMetadata = args.metadata;
-        return sp<Layer>::make(args);
-    }
-
-    TestableSurfaceFlinger mFlinger;
-};
-
-class LayerMetadataBuilder {
-public:
-    LayerMetadataBuilder(LayerMetadata layerMetadata = {}) : mLayerMetadata(layerMetadata) {}
-
-    LayerMetadataBuilder& setInt32(uint32_t key, int32_t value) {
-        mLayerMetadata.setInt32(key, value);
-        return *this;
-    }
-
-    LayerMetadata build() { return mLayerMetadata; }
-
-private:
-    LayerMetadata mLayerMetadata;
-};
-
-bool operator==(const LayerMetadata& lhs, const LayerMetadata& rhs) {
-    return lhs.mMap == rhs.mMap;
-}
-
-std::ostream& operator<<(std::ostream& stream, const LayerMetadata& layerMetadata) {
-    stream << "LayerMetadata{";
-    for (auto it = layerMetadata.mMap.cbegin(); it != layerMetadata.mMap.cend(); it++) {
-        if (it != layerMetadata.mMap.cbegin()) {
-            stream << ", ";
-        }
-        stream << layerMetadata.itemToString(it->first, ":");
-    }
-    return stream << "}";
-}
-
-// Test that the snapshot's layer metadata is set.
-TEST_F(SurfaceFlingerUpdateLayerMetadataSnapshotTest, updatesSnapshotMetadata) {
-    auto layerMetadata = LayerMetadataBuilder().setInt32(METADATA_TASK_ID, 1).build();
-    auto layer = createLayer("layer", layerMetadata);
-    mFlinger.mutableDrawingState().layersSortedByZ.add(layer);
-
-    mFlinger.updateLayerMetadataSnapshot();
-
-    EXPECT_EQ(layer->getLayerSnapshot()->layerMetadata, layerMetadata);
-}
-
-// Test that snapshot layer metadata is set by merging the child's metadata on top of its
-// parent's metadata.
-TEST_F(SurfaceFlingerUpdateLayerMetadataSnapshotTest, mergesSnapshotMetadata) {
-    auto layerAMetadata = LayerMetadataBuilder()
-                                  .setInt32(METADATA_OWNER_UID, 1)
-                                  .setInt32(METADATA_TASK_ID, 2)
-                                  .build();
-    auto layerA = createLayer("parent", layerAMetadata);
-    auto layerBMetadata = LayerMetadataBuilder().setInt32(METADATA_TASK_ID, 3).build();
-    auto layerB = createLayer("child", layerBMetadata);
-    layerA->addChild(layerB);
-    layerA->commitChildList();
-    mFlinger.mutableDrawingState().layersSortedByZ.add(layerA);
-
-    mFlinger.updateLayerMetadataSnapshot();
-
-    EXPECT_EQ(layerA->getLayerSnapshot()->layerMetadata, layerAMetadata);
-    auto expectedChildMetadata =
-            LayerMetadataBuilder(layerAMetadata).setInt32(METADATA_TASK_ID, 3).build();
-    EXPECT_EQ(layerB->getLayerSnapshot()->layerMetadata, expectedChildMetadata);
-}
-
-// Test that snapshot relative layer metadata is set to the parent's layer metadata merged on top of
-// that parent's relative layer metadata.
-TEST_F(SurfaceFlingerUpdateLayerMetadataSnapshotTest, updatesRelativeMetadata) {
-    auto layerAMetadata = LayerMetadataBuilder().setInt32(METADATA_TASK_ID, 1).build();
-    auto layerA = createLayer("relative-parent", layerAMetadata);
-    auto layerAHandle = layerA->getHandle();
-    auto layerBMetadata = LayerMetadataBuilder().setInt32(METADATA_TASK_ID, 2).build();
-    auto layerB = createLayer("relative-child", layerBMetadata);
-    layerB->setRelativeLayer(layerAHandle, 1);
-    mFlinger.mutableDrawingState().layersSortedByZ.add(layerA);
-    mFlinger.mutableDrawingState().layersSortedByZ.add(layerB);
-
-    mFlinger.updateLayerMetadataSnapshot();
-
-    EXPECT_EQ(layerA->getLayerSnapshot()->relativeLayerMetadata, LayerMetadata{});
-    EXPECT_EQ(layerB->getLayerSnapshot()->relativeLayerMetadata, layerAMetadata);
-}
-
-// Test that snapshot relative layer metadata is set correctly when a layer is interleaved within
-// two other layers.
-//
-// Layer
-//      A
-//     / \
-//    B   D
-//   /
-//  C
-//
-// Z-order Relatives
-//    B <- D <- C
-TEST_F(SurfaceFlingerUpdateLayerMetadataSnapshotTest, updatesRelativeMetadataInterleaved) {
-    auto layerAMetadata = LayerMetadataBuilder().setInt32(METADATA_OWNER_UID, 1).build();
-    auto layerA = createLayer("layer-a", layerAMetadata);
-    auto layerBMetadata = LayerMetadataBuilder()
-                                  .setInt32(METADATA_TASK_ID, 2)
-                                  .setInt32(METADATA_OWNER_PID, 3)
-                                  .build();
-    auto layerB = createLayer("layer-b", layerBMetadata);
-    auto layerBHandle = layerB->getHandle();
-    LayerMetadata layerCMetadata;
-    auto layerC = createLayer("layer-c", layerCMetadata);
-    auto layerDMetadata = LayerMetadataBuilder().setInt32(METADATA_TASK_ID, 4).build();
-    auto layerD = createLayer("layer-d", layerDMetadata);
-    auto layerDHandle = layerD->getHandle();
-    layerB->addChild(layerC);
-    layerA->addChild(layerB);
-    layerA->addChild(layerD);
-    layerC->setRelativeLayer(layerDHandle, 1);
-    layerD->setRelativeLayer(layerBHandle, 1);
-    layerA->commitChildList();
-    mFlinger.mutableDrawingState().layersSortedByZ.add(layerA);
-
-    mFlinger.updateLayerMetadataSnapshot();
-
-    auto expectedLayerDRelativeMetadata =
-            LayerMetadataBuilder()
-                    // From layer A, parent of relative parent
-                    .setInt32(METADATA_OWNER_UID, 1)
-                    // From layer B, relative parent
-                    .setInt32(METADATA_TASK_ID, 2)
-                    .setInt32(METADATA_OWNER_PID, 3)
-                    // added by layer creation args
-                    .setInt32(gui::METADATA_CALLING_UID,
-                              layerDMetadata.getInt32(gui::METADATA_CALLING_UID, 0))
-                    .build();
-    EXPECT_EQ(layerD->getLayerSnapshot()->relativeLayerMetadata, expectedLayerDRelativeMetadata);
-    auto expectedLayerCRelativeMetadata =
-            LayerMetadataBuilder()
-                    // From layer A, parent of relative parent
-                    .setInt32(METADATA_OWNER_UID, 1)
-                    // From layer B, relative parent of relative parent
-                    .setInt32(METADATA_OWNER_PID, 3)
-                    // From layer D, relative parent
-                    .setInt32(METADATA_TASK_ID, 4)
-                    // added by layer creation args
-                    .setInt32(gui::METADATA_CALLING_UID,
-                              layerDMetadata.getInt32(gui::METADATA_CALLING_UID, 0))
-                    .build();
-    EXPECT_EQ(layerC->getLayerSnapshot()->relativeLayerMetadata, expectedLayerCRelativeMetadata);
-}
-
-TEST_F(SurfaceFlingerUpdateLayerMetadataSnapshotTest,
-       updatesRelativeMetadataMultipleRelativeChildren) {
-    auto layerAMetadata = LayerMetadataBuilder().setInt32(METADATA_OWNER_UID, 1).build();
-    auto layerA = createLayer("layer-a", layerAMetadata);
-    auto layerAHandle = layerA->getHandle();
-    LayerMetadata layerBMetadata;
-    auto layerB = createLayer("layer-b", layerBMetadata);
-    LayerMetadata layerCMetadata;
-    auto layerC = createLayer("layer-c", layerCMetadata);
-    layerB->setRelativeLayer(layerAHandle, 1);
-    layerC->setRelativeLayer(layerAHandle, 2);
-    layerA->commitChildList();
-    mFlinger.mutableDrawingState().layersSortedByZ.add(layerA);
-    mFlinger.mutableDrawingState().layersSortedByZ.add(layerB);
-    mFlinger.mutableDrawingState().layersSortedByZ.add(layerC);
-
-    mFlinger.updateLayerMetadataSnapshot();
-
-    EXPECT_EQ(layerA->getLayerSnapshot()->relativeLayerMetadata, LayerMetadata{});
-    EXPECT_EQ(layerB->getLayerSnapshot()->relativeLayerMetadata, layerAMetadata);
-    EXPECT_EQ(layerC->getLayerSnapshot()->relativeLayerMetadata, layerAMetadata);
-}
-
-} // namespace android
diff --git a/services/surfaceflinger/tests/unittests/TestableScheduler.h b/services/surfaceflinger/tests/unittests/TestableScheduler.h
index f063809..0814e3d 100644
--- a/services/surfaceflinger/tests/unittests/TestableScheduler.h
+++ b/services/surfaceflinger/tests/unittests/TestableScheduler.h
@@ -62,7 +62,7 @@
     }
 
     MOCK_METHOD(void, scheduleConfigure, (), (override));
-    MOCK_METHOD(void, scheduleFrame, (), (override));
+    MOCK_METHOD(void, scheduleFrame, (Duration), (override));
     MOCK_METHOD(void, postMessage, (sp<MessageHandler>&&), (override));
 
     void doFrameSignal(ICompositor& compositor, VsyncId vsyncId) {
diff --git a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
index e3b2af1..a6a2758 100644
--- a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
+++ b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
@@ -528,7 +528,7 @@
 
     auto setTransactionState(
             const FrameTimelineInfo& frameTimelineInfo, Vector<ComposerState>& states,
-            const Vector<DisplayState>& displays, uint32_t flags, const sp<IBinder>& applyToken,
+            Vector<DisplayState>& displays, uint32_t flags, const sp<IBinder>& applyToken,
             const InputWindowCommands& inputWindowCommands, int64_t desiredPresentTime,
             bool isAutoTimestamp, const std::vector<client_cache_t>& uncacheBuffers,
             bool hasListenerCallbacks, std::vector<ListenerCallbacks>& listenerCallbacks,
@@ -584,8 +584,6 @@
         return mFlinger->mirrorLayer(args, mirrorFromHandle, outResult);
     }
 
-    void updateLayerMetadataSnapshot() { mFlinger->updateLayerMetadataSnapshot(); }
-
     void getDynamicDisplayInfoFromToken(const sp<IBinder>& displayToken,
                                         ui::DynamicDisplayInfo* dynamicDisplayInfo) {
         mFlinger->getDynamicDisplayInfoFromToken(displayToken, dynamicDisplayInfo);
diff --git a/services/surfaceflinger/tests/unittests/TransactionApplicationTest.cpp b/services/surfaceflinger/tests/unittests/TransactionApplicationTest.cpp
index e13fe49..fab1f6d 100644
--- a/services/surfaceflinger/tests/unittests/TransactionApplicationTest.cpp
+++ b/services/surfaceflinger/tests/unittests/TransactionApplicationTest.cpp
@@ -105,7 +105,7 @@
 
     void NotPlacedOnTransactionQueue(uint32_t flags) {
         ASSERT_TRUE(mFlinger.getTransactionQueue().isEmpty());
-        EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+        EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
         TransactionInfo transaction;
         setupSingle(transaction, flags,
                     /*desiredPresentTime*/ systemTime(), /*isAutoTimestamp*/ true,
@@ -129,7 +129,7 @@
 
     void PlaceOnTransactionQueue(uint32_t flags) {
         ASSERT_TRUE(mFlinger.getTransactionQueue().isEmpty());
-        EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+        EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 
         // first check will see desired present time has not passed,
         // but afterwards it will look like the desired present time has passed
@@ -155,7 +155,7 @@
     void BlockedByPriorTransaction(uint32_t flags) {
         ASSERT_TRUE(mFlinger.getTransactionQueue().isEmpty());
         nsecs_t time = systemTime();
-        EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(2);
+        EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(2);
 
         // transaction that should go on the pending thread
         TransactionInfo transactionA;
@@ -217,7 +217,7 @@
 
 TEST_F(TransactionApplicationTest, AddToPendingQueue) {
     ASSERT_TRUE(mFlinger.getTransactionQueue().isEmpty());
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 
     TransactionInfo transactionA; // transaction to go on pending queue
     setupSingle(transactionA, /*flags*/ 0, /*desiredPresentTime*/ s2ns(1), false,
@@ -238,7 +238,7 @@
 
 TEST_F(TransactionApplicationTest, Flush_RemovesFromQueue) {
     ASSERT_TRUE(mFlinger.getTransactionQueue().isEmpty());
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 
     TransactionInfo transactionA; // transaction to go on pending queue
     setupSingle(transactionA, /*flags*/ 0, /*desiredPresentTime*/ s2ns(1), false,
diff --git a/services/surfaceflinger/tests/unittests/TransactionFrameTracerTest.cpp b/services/surfaceflinger/tests/unittests/TransactionFrameTracerTest.cpp
index 85b61f8..abfab9a 100644
--- a/services/surfaceflinger/tests/unittests/TransactionFrameTracerTest.cpp
+++ b/services/surfaceflinger/tests/unittests/TransactionFrameTracerTest.cpp
@@ -94,7 +94,7 @@
                                                          HAL_PIXEL_FORMAT_RGBA_8888,
                                                          0ULL /*usage*/);
         layer->setBuffer(externalTexture, bufferData, postTime, /*desiredPresentTime*/ 30, false,
-                         FrameTimelineInfo{});
+                         FrameTimelineInfo{}, gui::GameMode::Unsupported);
 
         commitTransaction(layer.get());
         nsecs_t latchTime = 25;
@@ -112,7 +112,8 @@
         EXPECT_CALL(*mFlinger.getFrameTracer(),
                     traceFence(layerId, bufferId, frameNumber, presentFence,
                                FrameTracer::FrameEvent::PRESENT_FENCE, /*startTime*/ 0));
-        layer->onCompositionPresented(nullptr, glDoneFence, presentFence, compositorTiming);
+        layer->onCompositionPresented(nullptr, glDoneFence, presentFence, compositorTiming,
+                                      gui::GameMode::Unsupported);
     }
 };
 
diff --git a/services/surfaceflinger/tests/unittests/TransactionSurfaceFrameTest.cpp b/services/surfaceflinger/tests/unittests/TransactionSurfaceFrameTest.cpp
index 0745f87..9a68d75 100644
--- a/services/surfaceflinger/tests/unittests/TransactionSurfaceFrameTest.cpp
+++ b/services/surfaceflinger/tests/unittests/TransactionSurfaceFrameTest.cpp
@@ -72,7 +72,8 @@
         FrameTimelineInfo ftInfo;
         ftInfo.vsyncId = 1;
         ftInfo.inputEventId = 0;
-        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo, 10);
+        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo, 10,
+                                                             gui::GameMode::Unsupported);
         EXPECT_EQ(1u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_TRUE(layer->mDrawingState.bufferSurfaceFrameTX == nullptr);
         const auto surfaceFrame = layer->mDrawingState.bufferlessSurfaceFramesTX.at(/*token*/ 1);
@@ -99,7 +100,8 @@
         FrameTimelineInfo ftInfo;
         ftInfo.vsyncId = 1;
         ftInfo.inputEventId = 0;
-        layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo);
+        layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo,
+                         gui::GameMode::Unsupported);
         acquireFence->signalForTest(12);
 
         commitTransaction(layer.get());
@@ -134,7 +136,8 @@
         FrameTimelineInfo ftInfo;
         ftInfo.vsyncId = 1;
         ftInfo.inputEventId = 0;
-        layer->setBuffer(externalTexture1, bufferData, 10, 20, false, ftInfo);
+        layer->setBuffer(externalTexture1, bufferData, 10, 20, false, ftInfo,
+                         gui::GameMode::Unsupported);
         EXPECT_EQ(0u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_NE(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
         const auto droppedSurfaceFrame = layer->mDrawingState.bufferSurfaceFrameTX;
@@ -151,7 +154,8 @@
                                                          2ULL /* bufferId */,
                                                          HAL_PIXEL_FORMAT_RGBA_8888,
                                                          0ULL /*usage*/);
-        layer->setBuffer(externalTexture2, bufferData, 10, 20, false, ftInfo);
+        layer->setBuffer(externalTexture2, bufferData, 10, 20, false, ftInfo,
+                         gui::GameMode::Unsupported);
         nsecs_t end = systemTime();
         acquireFence2->signalForTest(12);
 
@@ -180,7 +184,8 @@
         ftInfo.vsyncId = 1;
         ftInfo.inputEventId = 0;
 
-        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo, 10);
+        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo, 10,
+                                                             gui::GameMode::Unsupported);
 
         EXPECT_EQ(1u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_EQ(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
@@ -197,7 +202,8 @@
                                                          1ULL /* bufferId */,
                                                          HAL_PIXEL_FORMAT_RGBA_8888,
                                                          0ULL /*usage*/);
-        layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo);
+        layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo,
+                         gui::GameMode::Unsupported);
         acquireFence->signalForTest(12);
 
         EXPECT_EQ(0u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
@@ -232,11 +238,13 @@
         FrameTimelineInfo ftInfo;
         ftInfo.vsyncId = 1;
         ftInfo.inputEventId = 0;
-        layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo);
+        layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo,
+                         gui::GameMode::Unsupported);
         EXPECT_EQ(0u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_NE(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
 
-        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo, 10);
+        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo, 10,
+                                                             gui::GameMode::Unsupported);
         EXPECT_EQ(0u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_NE(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
     }
@@ -246,7 +254,8 @@
         FrameTimelineInfo ftInfo;
         ftInfo.vsyncId = 1;
         ftInfo.inputEventId = 0;
-        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo, 10);
+        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo, 10,
+                                                             gui::GameMode::Unsupported);
         EXPECT_EQ(1u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_EQ(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
         const auto bufferlessSurfaceFrame1 =
@@ -255,7 +264,8 @@
         FrameTimelineInfo ftInfo2;
         ftInfo2.vsyncId = 4;
         ftInfo2.inputEventId = 0;
-        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo2, 10);
+        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo2, 10,
+                                                             gui::GameMode::Unsupported);
         EXPECT_EQ(2u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_EQ(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
         const auto bufferlessSurfaceFrame2 = layer->mDrawingState.bufferlessSurfaceFramesTX[4];
@@ -275,7 +285,8 @@
         FrameTimelineInfo ftInfo3;
         ftInfo3.vsyncId = 3;
         ftInfo3.inputEventId = 0;
-        layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo3);
+        layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo3,
+                         gui::GameMode::Unsupported);
         EXPECT_EQ(2u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_NE(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
         const auto bufferSurfaceFrameTX = layer->mDrawingState.bufferSurfaceFrameTX;
@@ -320,7 +331,8 @@
         FrameTimelineInfo ftInfo;
         ftInfo.vsyncId = 1;
         ftInfo.inputEventId = 0;
-        layer->setBuffer(externalTexture1, bufferData, 10, 20, false, ftInfo);
+        layer->setBuffer(externalTexture1, bufferData, 10, 20, false, ftInfo,
+                         gui::GameMode::Unsupported);
         EXPECT_EQ(0u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_NE(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
         const auto droppedSurfaceFrame1 = layer->mDrawingState.bufferSurfaceFrameTX;
@@ -340,7 +352,8 @@
         FrameTimelineInfo ftInfoInv;
         ftInfoInv.vsyncId = FrameTimelineInfo::INVALID_VSYNC_ID;
         ftInfoInv.inputEventId = 0;
-        layer->setBuffer(externalTexture2, bufferData, 10, 20, false, ftInfoInv);
+        layer->setBuffer(externalTexture2, bufferData, 10, 20, false, ftInfoInv,
+                         gui::GameMode::Unsupported);
         auto dropEndTime1 = systemTime();
         EXPECT_EQ(0u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_NE(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
@@ -361,7 +374,8 @@
         FrameTimelineInfo ftInfo2;
         ftInfo2.vsyncId = 2;
         ftInfo2.inputEventId = 0;
-        layer->setBuffer(externalTexture3, bufferData, 10, 20, false, ftInfo2);
+        layer->setBuffer(externalTexture3, bufferData, 10, 20, false, ftInfo2,
+                         gui::GameMode::Unsupported);
         auto dropEndTime2 = systemTime();
         acquireFence3->signalForTest(12);
 
@@ -409,11 +423,13 @@
             FrameTimelineInfo ftInfo;
             ftInfo.vsyncId = 1;
             ftInfo.inputEventId = 0;
-            layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo);
+            layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo,
+                             gui::GameMode::Unsupported);
             FrameTimelineInfo ftInfo2;
             ftInfo2.vsyncId = 2;
             ftInfo2.inputEventId = 0;
-            layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo2, 10);
+            layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo2, 10,
+                                                                 gui::GameMode::Unsupported);
             ASSERT_NE(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
             EXPECT_EQ(1u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
 
diff --git a/services/surfaceflinger/tests/unittests/TunnelModeEnabledReporterTest.cpp b/services/surfaceflinger/tests/unittests/TunnelModeEnabledReporterTest.cpp
index 1cf14ae..9f6065b 100644
--- a/services/surfaceflinger/tests/unittests/TunnelModeEnabledReporterTest.cpp
+++ b/services/surfaceflinger/tests/unittests/TunnelModeEnabledReporterTest.cpp
@@ -127,7 +127,7 @@
     sp<NativeHandle> stream =
             NativeHandle::create(reinterpret_cast<native_handle_t*>(DEFAULT_SIDEBAND_STREAM),
                                  false);
-    layer->setSidebandStream(stream, FrameTimelineInfo{}, 20);
+    layer->setSidebandStream(stream, FrameTimelineInfo{}, 20, gui::GameMode::Unsupported);
     mFlinger.mutableCurrentState().layersSortedByZ.add(layer);
     mTunnelModeEnabledReporter->updateTunnelModeStatus();
     mTunnelModeEnabledReporter->addListener(mTunnelModeEnabledListener);
@@ -151,7 +151,8 @@
     sp<NativeHandle> stream =
             NativeHandle::create(reinterpret_cast<native_handle_t*>(DEFAULT_SIDEBAND_STREAM),
                                  false);
-    layerWithSidebandStream->setSidebandStream(stream, FrameTimelineInfo{}, 20);
+    layerWithSidebandStream->setSidebandStream(stream, FrameTimelineInfo{}, 20,
+                                               gui::GameMode::Unsupported);
 
     mFlinger.mutableCurrentState().layersSortedByZ.add(simpleLayer);
     mFlinger.mutableCurrentState().layersSortedByZ.add(layerWithSidebandStream);
diff --git a/services/surfaceflinger/tests/unittests/VSyncDispatchRealtimeTest.cpp b/services/surfaceflinger/tests/unittests/VSyncDispatchRealtimeTest.cpp
index 3b09554..b63f299 100644
--- a/services/surfaceflinger/tests/unittests/VSyncDispatchRealtimeTest.cpp
+++ b/services/surfaceflinger/tests/unittests/VSyncDispatchRealtimeTest.cpp
@@ -19,6 +19,7 @@
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 
+#include <scheduler/FrameTime.h>
 #include <scheduler/Timer.h>
 
 #include "Scheduler/VSyncDispatchTimerQueue.h"
@@ -51,7 +52,7 @@
     bool isVSyncInPhase(nsecs_t, Fps) final { return false; }
     void setDisplayModePtr(ftl::NonNull<DisplayModePtr>) final {}
     void setRenderRate(Fps, bool) final {}
-    void onFrameBegin(TimePoint, TimePoint) final {}
+    void onFrameBegin(TimePoint, scheduler::FrameTime) final {}
     void onFrameMissed(TimePoint) final {}
     void dump(std::string&) const final {}
     bool isCurrentMode(const ftl::NonNull<DisplayModePtr>&) const final { return false; };
diff --git a/services/surfaceflinger/tests/unittests/VSyncPredictorTest.cpp b/services/surfaceflinger/tests/unittests/VSyncPredictorTest.cpp
index f36a8a6..7c678bd 100644
--- a/services/surfaceflinger/tests/unittests/VSyncPredictorTest.cpp
+++ b/services/surfaceflinger/tests/unittests/VSyncPredictorTest.cpp
@@ -901,17 +901,20 @@
     EXPECT_EQ(1000, vrrTracker.nextAnticipatedVSyncTimeFrom(700));
     EXPECT_EQ(2000, vrrTracker.nextAnticipatedVSyncTimeFrom(1000));
 
-    vrrTracker.onFrameBegin(TimePoint::fromNs(2000), TimePoint::fromNs(1500));
+    vrrTracker.onFrameBegin(TimePoint::fromNs(2000),
+                            {TimePoint::fromNs(1500), TimePoint::fromNs(1500)});
     EXPECT_EQ(3500, vrrTracker.nextAnticipatedVSyncTimeFrom(2000, 2000));
     EXPECT_EQ(4500, vrrTracker.nextAnticipatedVSyncTimeFrom(3500, 3500));
 
     // Miss when starting 4500 and expect the next vsync will be at 5000 (next one)
-    vrrTracker.onFrameBegin(TimePoint::fromNs(3500), TimePoint::fromNs(2500));
+    vrrTracker.onFrameBegin(TimePoint::fromNs(3500),
+                            {TimePoint::fromNs(2500), TimePoint::fromNs(2500)});
     vrrTracker.onFrameMissed(TimePoint::fromNs(4500));
     EXPECT_EQ(5000, vrrTracker.nextAnticipatedVSyncTimeFrom(4500, 4500));
     EXPECT_EQ(6000, vrrTracker.nextAnticipatedVSyncTimeFrom(5000, 5000));
 
-    vrrTracker.onFrameBegin(TimePoint::fromNs(7000), TimePoint::fromNs(6500));
+    vrrTracker.onFrameBegin(TimePoint::fromNs(7000),
+                            {TimePoint::fromNs(6500), TimePoint::fromNs(6500)});
     EXPECT_EQ(10500, vrrTracker.nextAnticipatedVSyncTimeFrom(9000, 7000));
 }
 
@@ -943,7 +946,7 @@
 
     // SF starts to catch up
     EXPECT_EQ(3000, vrrTracker.nextAnticipatedVSyncTimeFrom(2700));
-    vrrTracker.onFrameBegin(TimePoint::fromNs(3000), TimePoint::fromNs(0));
+    vrrTracker.onFrameBegin(TimePoint::fromNs(3000), {TimePoint::fromNs(0), TimePoint::fromNs(0)});
 
     // SF misses last frame (3000) and observes that when committing (4000)
     EXPECT_EQ(6000, vrrTracker.nextAnticipatedVSyncTimeFrom(5000, 5000));
@@ -952,17 +955,20 @@
 
     // SF wakes up again instead of the (4000) missed frame
     EXPECT_EQ(4500, vrrTracker.nextAnticipatedVSyncTimeFrom(4000, 4000));
-    vrrTracker.onFrameBegin(TimePoint::fromNs(4500), TimePoint::fromNs(4500));
+    vrrTracker.onFrameBegin(TimePoint::fromNs(4500),
+                            {TimePoint::fromNs(4500), TimePoint::fromNs(4500)});
 
     // Timeline shifted. The app needs to get the next frame at (7500) as its last frame (6500) will
     // be presented at (7500)
     EXPECT_EQ(7500, vrrTracker.nextAnticipatedVSyncTimeFrom(6000, 6000));
     EXPECT_EQ(5500, vrrTracker.nextAnticipatedVSyncTimeFrom(4500, 4500));
-    vrrTracker.onFrameBegin(TimePoint::fromNs(5500), TimePoint::fromNs(4500));
+    vrrTracker.onFrameBegin(TimePoint::fromNs(5500),
+                            {TimePoint::fromNs(4500), TimePoint::fromNs(4500)});
 
     EXPECT_EQ(8500, vrrTracker.nextAnticipatedVSyncTimeFrom(7500, 7500));
     EXPECT_EQ(6500, vrrTracker.nextAnticipatedVSyncTimeFrom(5500, 5500));
-    vrrTracker.onFrameBegin(TimePoint::fromNs(6500), TimePoint::fromNs(5500));
+    vrrTracker.onFrameBegin(TimePoint::fromNs(6500),
+                            {TimePoint::fromNs(5500), TimePoint::fromNs(5500)});
 }
 
 TEST_F(VSyncPredictorTest, renderRateIsPreservedForCommittedVsyncs) {
@@ -1020,6 +1026,65 @@
     EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(9001), Eq(13000));
 }
 
+TEST_F(VSyncPredictorTest, timelineNotAdjustedForEarlyPresent) {
+    SET_FLAG_FOR_TEST(flags::vrr_config, true);
+
+    const int32_t kGroup = 0;
+    const auto kResolution = ui::Size(1920, 1080);
+    const auto refreshRate = Fps::fromPeriodNsecs(500);
+    const auto minFrameRate = Fps::fromPeriodNsecs(1000);
+    hal::VrrConfig vrrConfig;
+    vrrConfig.minFrameIntervalNs = minFrameRate.getPeriodNsecs();
+    const ftl::NonNull<DisplayModePtr> kMode =
+            ftl::as_non_null(createDisplayModeBuilder(DisplayModeId(0), refreshRate, kGroup,
+                                                      kResolution, DEFAULT_DISPLAY_ID)
+                                     .setVrrConfig(std::move(vrrConfig))
+                                     .build());
+
+    VSyncPredictor vrrTracker{std::make_unique<ClockWrapper>(mClock), kMode, kHistorySize,
+                              kMinimumSamplesForPrediction, kOutlierTolerancePercent};
+
+    vrrTracker.setRenderRate(minFrameRate, /*applyImmediately*/ false);
+    vrrTracker.addVsyncTimestamp(0);
+    EXPECT_EQ(1000, vrrTracker.nextAnticipatedVSyncTimeFrom(700));
+
+    constexpr auto kLastConfirmedExpectedPresentTime = TimePoint::fromNs(1000);
+    constexpr auto kLastActualSignalTime = TimePoint::fromNs(700); // presented early
+    vrrTracker.onFrameBegin(TimePoint::fromNs(1400),
+                            {kLastActualSignalTime, kLastConfirmedExpectedPresentTime});
+    EXPECT_EQ(2000, vrrTracker.nextAnticipatedVSyncTimeFrom(1400, 1000));
+    EXPECT_EQ(3000, vrrTracker.nextAnticipatedVSyncTimeFrom(2000, 1000));
+}
+
+TEST_F(VSyncPredictorTest, adjustsOnlyMinFrameViolatingVrrTimeline) {
+    const auto refreshRate = Fps::fromPeriodNsecs(500);
+    auto minFrameRate = Fps::fromPeriodNsecs(1000);
+    hal::VrrConfig vrrConfig{.minFrameIntervalNs =
+                                     static_cast<int32_t>(minFrameRate.getPeriodNsecs())};
+    ftl::NonNull<DisplayModePtr> mode =
+            ftl::as_non_null(createVrrDisplayMode(DisplayModeId(0), refreshRate, vrrConfig));
+    VSyncPredictor vrrTracker{std::make_unique<ClockWrapper>(mClock), mode, kHistorySize,
+                              kMinimumSamplesForPrediction, kOutlierTolerancePercent};
+    vrrTracker.setRenderRate(minFrameRate, /*applyImmediately*/ false);
+    vrrTracker.addVsyncTimestamp(0);
+
+    EXPECT_EQ(1000, vrrTracker.nextAnticipatedVSyncTimeFrom(700));
+    EXPECT_EQ(2000, vrrTracker.nextAnticipatedVSyncTimeFrom(1000));
+    auto lastConfirmedSignalTime = TimePoint::fromNs(1500);
+    auto lastConfirmedExpectedPresentTime = TimePoint::fromNs(1000);
+    vrrTracker.onFrameBegin(TimePoint::fromNs(2000),
+                            {lastConfirmedSignalTime, lastConfirmedExpectedPresentTime});
+    EXPECT_EQ(3500, vrrTracker.nextAnticipatedVSyncTimeFrom(3000, 1500));
+
+    minFrameRate = Fps::fromPeriodNsecs(2000);
+    vrrTracker.setRenderRate(minFrameRate, /*applyImmediately*/ false);
+    lastConfirmedSignalTime = TimePoint::fromNs(2500);
+    lastConfirmedExpectedPresentTime = TimePoint::fromNs(2500);
+    vrrTracker.onFrameBegin(TimePoint::fromNs(3000),
+                            {lastConfirmedSignalTime, lastConfirmedExpectedPresentTime});
+    // Enough time without adjusting vsync to present with new rate on time, no need of adjustment
+    EXPECT_EQ(5500, vrrTracker.nextAnticipatedVSyncTimeFrom(4000, 3500));
+}
 } // namespace android::scheduler
 
 // TODO(b/129481165): remove the #pragma below and fix conversion issues
diff --git a/services/surfaceflinger/tests/unittests/mock/MockSchedulerCallback.h b/services/surfaceflinger/tests/unittests/mock/MockSchedulerCallback.h
index 8f21cdb..d45cc66 100644
--- a/services/surfaceflinger/tests/unittests/mock/MockSchedulerCallback.h
+++ b/services/surfaceflinger/tests/unittests/mock/MockSchedulerCallback.h
@@ -26,7 +26,6 @@
     MOCK_METHOD(void, requestHardwareVsync, (PhysicalDisplayId, bool), (override));
     MOCK_METHOD(void, requestDisplayModes, (std::vector<display::DisplayModeRequest>), (override));
     MOCK_METHOD(void, kernelTimerChanged, (bool), (override));
-    MOCK_METHOD(void, triggerOnFrameRateOverridesChanged, (), (override));
     MOCK_METHOD(void, onChoreographerAttached, (), (override));
     MOCK_METHOD(void, onExpectedPresentTimePosted, (TimePoint, ftl::NonNull<DisplayModePtr>, Fps),
                 (override));
@@ -38,7 +37,6 @@
     void requestHardwareVsync(PhysicalDisplayId, bool) override {}
     void requestDisplayModes(std::vector<display::DisplayModeRequest>) override {}
     void kernelTimerChanged(bool) override {}
-    void triggerOnFrameRateOverridesChanged() override {}
     void onChoreographerAttached() override {}
     void onExpectedPresentTimePosted(TimePoint, ftl::NonNull<DisplayModePtr>, Fps) override {}
     void onCommitNotComposited(PhysicalDisplayId) override {}
diff --git a/services/surfaceflinger/tests/unittests/mock/MockVSyncTracker.h b/services/surfaceflinger/tests/unittests/mock/MockVSyncTracker.h
index 4f44d1b..8d6d1d3 100644
--- a/services/surfaceflinger/tests/unittests/mock/MockVSyncTracker.h
+++ b/services/surfaceflinger/tests/unittests/mock/MockVSyncTracker.h
@@ -18,6 +18,8 @@
 
 #include <gmock/gmock.h>
 
+#include <scheduler/FrameTime.h>
+
 #include "Scheduler/VSyncTracker.h"
 
 namespace android::mock {
@@ -37,7 +39,7 @@
     MOCK_METHOD(bool, isVSyncInPhase, (nsecs_t, Fps), (override));
     MOCK_METHOD(void, setDisplayModePtr, (ftl::NonNull<DisplayModePtr>), (override));
     MOCK_METHOD(void, setRenderRate, (Fps, bool), (override));
-    MOCK_METHOD(void, onFrameBegin, (TimePoint, TimePoint), (override));
+    MOCK_METHOD(void, onFrameBegin, (TimePoint, scheduler::FrameTime), (override));
     MOCK_METHOD(void, onFrameMissed, (TimePoint), (override));
     MOCK_METHOD(void, dump, (std::string&), (const, override));
     MOCK_METHOD(bool, isCurrentMode, (const ftl::NonNull<DisplayModePtr>&), (const, override));
diff --git a/services/surfaceflinger/tests/utils/ColorUtils.h b/services/surfaceflinger/tests/utils/ColorUtils.h
index 07916b6..253bad7 100644
--- a/services/surfaceflinger/tests/utils/ColorUtils.h
+++ b/services/surfaceflinger/tests/utils/ColorUtils.h
@@ -74,8 +74,8 @@
     static void applyMatrix(half3& color, const mat3& mat) {
         half3 ret = half3(0);
 
-        for (int i = 0; i < 3; i++) {
-            for (int j = 0; j < 3; j++) {
+        for (size_t i = 0; i < 3; i++) {
+            for (size_t j = 0; j < 3; j++) {
                 ret[i] = ret[i] + color[j] * mat[j][i];
             }
         }
diff --git a/services/vibratorservice/Android.bp b/services/vibratorservice/Android.bp
index 503587f..4735ae5 100644
--- a/services/vibratorservice/Android.bp
+++ b/services/vibratorservice/Android.bp
@@ -45,7 +45,7 @@
         "libhidlbase",
         "liblog",
         "libutils",
-        "android.hardware.vibrator-V2-ndk",
+        "android.hardware.vibrator-V3-ndk",
         "android.hardware.vibrator@1.0",
         "android.hardware.vibrator@1.1",
         "android.hardware.vibrator@1.2",
diff --git a/services/vibratorservice/VibratorHalWrapper.cpp b/services/vibratorservice/VibratorHalWrapper.cpp
index abe78f0..c97f401 100644
--- a/services/vibratorservice/VibratorHalWrapper.cpp
+++ b/services/vibratorservice/VibratorHalWrapper.cpp
@@ -32,6 +32,7 @@
 using aidl::android::hardware::vibrator::Effect;
 using aidl::android::hardware::vibrator::EffectStrength;
 using aidl::android::hardware::vibrator::PrimitivePwle;
+using aidl::android::hardware::vibrator::VendorEffect;
 
 using std::chrono::milliseconds;
 
@@ -96,6 +97,11 @@
     return mInfoCache.get();
 }
 
+HalResult<void> HalWrapper::performVendorEffect(const VendorEffect&, const std::function<void()>&) {
+    ALOGV("Skipped performVendorEffect because it's not available in Vibrator HAL");
+    return HalResult<void>::unsupported();
+}
+
 HalResult<milliseconds> HalWrapper::performComposedEffect(const std::vector<CompositeEffect>&,
                                                           const std::function<void()>&) {
     ALOGV("Skipped performComposedEffect because it's not available in Vibrator HAL");
@@ -271,6 +277,13 @@
     return ret;
 }
 
+HalResult<void> AidlHalWrapper::performVendorEffect(
+        const VendorEffect& effect, const std::function<void()>& completionCallback) {
+    // This method should always support callbacks, so no need to double check.
+    auto cb = ndk::SharedRefBase::make<HalCallbackWrapper>(completionCallback);
+    return HalResultFactory::fromStatus(getHal()->performVendorEffect(effect, cb));
+}
+
 HalResult<milliseconds> AidlHalWrapper::performComposedEffect(
         const std::vector<CompositeEffect>& primitives,
         const std::function<void()>& completionCallback) {
@@ -351,7 +364,7 @@
         }
         if (halResult.isFailed()) {
             // Fail entire request if one request has failed.
-            return HalResult<std::vector<milliseconds>>::failed(status.getMessage());
+            return HalResult<std::vector<milliseconds>>::failed(halResult.errorMessage());
         }
         durations[primitiveIdx] = milliseconds(duration);
     }
diff --git a/services/vibratorservice/benchmarks/Android.bp b/services/vibratorservice/benchmarks/Android.bp
index 5bb8ceb..915d6c7 100644
--- a/services/vibratorservice/benchmarks/Android.bp
+++ b/services/vibratorservice/benchmarks/Android.bp
@@ -33,7 +33,7 @@
         "liblog",
         "libutils",
         "libvibratorservice",
-        "android.hardware.vibrator-V2-ndk",
+        "android.hardware.vibrator-V3-ndk",
         "android.hardware.vibrator@1.0",
         "android.hardware.vibrator@1.1",
         "android.hardware.vibrator@1.2",
diff --git a/services/vibratorservice/include/vibratorservice/VibratorHalWrapper.h b/services/vibratorservice/include/vibratorservice/VibratorHalWrapper.h
index d4f7f1d..20979bd 100644
--- a/services/vibratorservice/include/vibratorservice/VibratorHalWrapper.h
+++ b/services/vibratorservice/include/vibratorservice/VibratorHalWrapper.h
@@ -349,6 +349,7 @@
 public:
     using Effect = aidl::android::hardware::vibrator::Effect;
     using EffectStrength = aidl::android::hardware::vibrator::EffectStrength;
+    using VendorEffect = aidl::android::hardware::vibrator::VendorEffect;
     using CompositePrimitive = aidl::android::hardware::vibrator::CompositePrimitive;
     using CompositeEffect = aidl::android::hardware::vibrator::CompositeEffect;
     using Braking = aidl::android::hardware::vibrator::Braking;
@@ -380,6 +381,9 @@
             Effect effect, EffectStrength strength,
             const std::function<void()>& completionCallback) = 0;
 
+    virtual HalResult<void> performVendorEffect(const VendorEffect& effect,
+                                                const std::function<void()>& completionCallback);
+
     virtual HalResult<std::chrono::milliseconds> performComposedEffect(
             const std::vector<CompositeEffect>& primitives,
             const std::function<void()>& completionCallback);
@@ -455,6 +459,10 @@
             Effect effect, EffectStrength strength,
             const std::function<void()>& completionCallback) override final;
 
+    HalResult<void> performVendorEffect(
+            const VendorEffect& effect,
+            const std::function<void()>& completionCallback) override final;
+
     HalResult<std::chrono::milliseconds> performComposedEffect(
             const std::vector<CompositeEffect>& primitives,
             const std::function<void()>& completionCallback) override final;
diff --git a/services/vibratorservice/test/Android.bp b/services/vibratorservice/test/Android.bp
index cd05123..92527eb 100644
--- a/services/vibratorservice/test/Android.bp
+++ b/services/vibratorservice/test/Android.bp
@@ -49,7 +49,7 @@
         "liblog",
         "libvibratorservice",
         "libutils",
-        "android.hardware.vibrator-V2-ndk",
+        "android.hardware.vibrator-V3-ndk",
         "android.hardware.vibrator@1.0",
         "android.hardware.vibrator@1.1",
         "android.hardware.vibrator@1.2",
diff --git a/services/vibratorservice/test/VibratorHalWrapperAidlTest.cpp b/services/vibratorservice/test/VibratorHalWrapperAidlTest.cpp
index 91717f6..7bcc59a 100644
--- a/services/vibratorservice/test/VibratorHalWrapperAidlTest.cpp
+++ b/services/vibratorservice/test/VibratorHalWrapperAidlTest.cpp
@@ -17,6 +17,7 @@
 #define LOG_TAG "VibratorHalWrapperAidlTest"
 
 #include <aidl/android/hardware/vibrator/IVibrator.h>
+#include <android/persistable_bundle_aidl.h>
 
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
@@ -38,6 +39,8 @@
 using aidl::android::hardware::vibrator::IVibrator;
 using aidl::android::hardware::vibrator::IVibratorCallback;
 using aidl::android::hardware::vibrator::PrimitivePwle;
+using aidl::android::hardware::vibrator::VendorEffect;
+using aidl::android::os::PersistableBundle;
 
 using namespace android;
 using namespace std::chrono_literals;
@@ -489,6 +492,42 @@
     ASSERT_EQ(1, *callbackCounter.get());
 }
 
+TEST_F(VibratorHalWrapperAidlTest, TestPerformVendorEffect) {
+    PersistableBundle vendorData;
+    vendorData.putInt("key", 1);
+    VendorEffect vendorEffect;
+    vendorEffect.vendorData = vendorData;
+    vendorEffect.strength = EffectStrength::MEDIUM;
+    vendorEffect.scale = 0.5f;
+
+    {
+        InSequence seq;
+        EXPECT_CALL(*mMockHal.get(), performVendorEffect(_, _))
+                .Times(Exactly(3))
+                .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION)))
+                .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)))
+                .WillOnce(DoAll(WithArg<1>(vibrator::TriggerCallback()),
+                                Return(ndk::ScopedAStatus::ok())));
+    }
+
+    std::unique_ptr<int32_t> callbackCounter = std::make_unique<int32_t>();
+    auto callback = vibrator::TestFactory::createCountingCallback(callbackCounter.get());
+
+    auto result = mWrapper->performVendorEffect(vendorEffect, callback);
+    ASSERT_TRUE(result.isUnsupported());
+    // Callback not triggered on failure
+    ASSERT_EQ(0, *callbackCounter.get());
+
+    result = mWrapper->performVendorEffect(vendorEffect, callback);
+    ASSERT_TRUE(result.isFailed());
+    // Callback not triggered for unsupported
+    ASSERT_EQ(0, *callbackCounter.get());
+
+    result = mWrapper->performVendorEffect(vendorEffect, callback);
+    ASSERT_TRUE(result.isOk());
+    ASSERT_EQ(1, *callbackCounter.get());
+}
+
 TEST_F(VibratorHalWrapperAidlTest, TestPerformComposedEffect) {
     std::vector<CompositePrimitive> supportedPrimitives = {CompositePrimitive::CLICK,
                                                            CompositePrimitive::SPIN,
diff --git a/services/vibratorservice/test/VibratorHalWrapperHidlV1_0Test.cpp b/services/vibratorservice/test/VibratorHalWrapperHidlV1_0Test.cpp
index dd59093..9a7c69d 100644
--- a/services/vibratorservice/test/VibratorHalWrapperHidlV1_0Test.cpp
+++ b/services/vibratorservice/test/VibratorHalWrapperHidlV1_0Test.cpp
@@ -17,6 +17,7 @@
 #define LOG_TAG "VibratorHalWrapperHidlV1_0Test"
 
 #include <aidl/android/hardware/vibrator/IVibrator.h>
+#include <android/persistable_bundle_aidl.h>
 
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
@@ -39,6 +40,8 @@
 using aidl::android::hardware::vibrator::EffectStrength;
 using aidl::android::hardware::vibrator::IVibrator;
 using aidl::android::hardware::vibrator::PrimitivePwle;
+using aidl::android::hardware::vibrator::VendorEffect;
+using aidl::android::os::PersistableBundle;
 
 using namespace android;
 using namespace std::chrono_literals;
@@ -317,6 +320,22 @@
     ASSERT_EQ(0, *callbackCounter.get());
 }
 
+TEST_F(VibratorHalWrapperHidlV1_0Test, TestPerformVendorEffectUnsupported) {
+    PersistableBundle vendorData; // empty
+    VendorEffect vendorEffect;
+    vendorEffect.vendorData = vendorData;
+    vendorEffect.strength = EffectStrength::LIGHT;
+    vendorEffect.scale = 1.0f;
+
+    std::unique_ptr<int32_t> callbackCounter = std::make_unique<int32_t>();
+    auto callback = vibrator::TestFactory::createCountingCallback(callbackCounter.get());
+
+    ASSERT_TRUE(mWrapper->performVendorEffect(vendorEffect, callback).isUnsupported());
+
+    // No callback is triggered.
+    ASSERT_EQ(0, *callbackCounter.get());
+}
+
 TEST_F(VibratorHalWrapperHidlV1_0Test, TestPerformComposedEffectUnsupported) {
     std::vector<CompositeEffect> emptyEffects, singleEffect, multipleEffects;
     singleEffect.push_back(
diff --git a/services/vibratorservice/test/test_mocks.h b/services/vibratorservice/test/test_mocks.h
index 7882186..2f9451e 100644
--- a/services/vibratorservice/test/test_mocks.h
+++ b/services/vibratorservice/test/test_mocks.h
@@ -41,6 +41,7 @@
 using aidl::android::hardware::vibrator::IVibrator;
 using aidl::android::hardware::vibrator::IVibratorCallback;
 using aidl::android::hardware::vibrator::PrimitivePwle;
+using aidl::android::hardware::vibrator::VendorEffect;
 
 // -------------------------------------------------------------------------------------------------
 
@@ -56,6 +57,8 @@
                 (Effect e, EffectStrength s, const std::shared_ptr<IVibratorCallback>& cb,
                  int32_t* ret),
                 (override));
+    MOCK_METHOD(ndk::ScopedAStatus, performVendorEffect,
+                (const VendorEffect& e, const std::shared_ptr<IVibratorCallback>& cb), (override));
     MOCK_METHOD(ndk::ScopedAStatus, getSupportedEffects, (std::vector<Effect> * ret), (override));
     MOCK_METHOD(ndk::ScopedAStatus, setAmplitude, (float amplitude), (override));
     MOCK_METHOD(ndk::ScopedAStatus, setExternalControl, (bool enabled), (override));