diff --git a/include/input/Input.h b/include/input/Input.h
index 2e326cb..dce6ccb 100644
--- a/include/input/Input.h
+++ b/include/input/Input.h
@@ -1015,6 +1015,25 @@
     std::queue<std::unique_ptr<DragEvent>> mDragEventPool;
 };
 
+/*
+ * Describes a unique request to enable or disable Pointer Capture.
+ */
+struct PointerCaptureRequest {
+public:
+    inline PointerCaptureRequest() : enable(false), seq(0) {}
+    inline PointerCaptureRequest(bool enable, uint32_t seq) : enable(enable), seq(seq) {}
+    inline bool operator==(const PointerCaptureRequest& other) const {
+        return enable == other.enable && seq == other.seq;
+    }
+    explicit inline operator bool() const { return enable; }
+
+    // True iff this is a request to enable Pointer Capture.
+    bool enable;
+
+    // The sequence number for the request.
+    uint32_t seq;
+};
+
 } // namespace android
 
 #endif // _LIBINPUT_INPUT_H
diff --git a/libs/binder/BpBinder.cpp b/libs/binder/BpBinder.cpp
index 1dcb94c..6471aa6 100644
--- a/libs/binder/BpBinder.cpp
+++ b/libs/binder/BpBinder.cpp
@@ -36,7 +36,8 @@
 // ---------------------------------------------------------------------------
 
 Mutex BpBinder::sTrackingLock;
-std::unordered_map<int32_t,uint32_t> BpBinder::sTrackingMap;
+std::unordered_map<int32_t, uint32_t> BpBinder::sTrackingMap;
+std::unordered_map<int32_t, uint32_t> sLastLimitCallbackMap;
 int BpBinder::sNumTrackedUids = 0;
 std::atomic_bool BpBinder::sCountByUidEnabled(false);
 binder_proxy_limit_callback BpBinder::sLimitCallback;
@@ -117,12 +118,24 @@
             if (sBinderProxyThrottleCreate) {
                 return nullptr;
             }
+            trackedValue = trackedValue & COUNTING_VALUE_MASK;
+            uint32_t lastLimitCallbackAt = sLastLimitCallbackMap[trackedUid];
+
+            if (trackedValue > lastLimitCallbackAt &&
+                (trackedValue - lastLimitCallbackAt > sBinderProxyCountHighWatermark)) {
+                ALOGE("Still too many binder proxy objects sent to uid %d from uid %d (%d proxies "
+                      "held)",
+                      getuid(), trackedUid, trackedValue);
+                if (sLimitCallback) sLimitCallback(trackedUid);
+                sLastLimitCallbackMap[trackedUid] = trackedValue;
+            }
         } else {
             if ((trackedValue & COUNTING_VALUE_MASK) >= sBinderProxyCountHighWatermark) {
                 ALOGE("Too many binder proxy objects sent to uid %d from uid %d (%d proxies held)",
                       getuid(), trackedUid, trackedValue);
                 sTrackingMap[trackedUid] |= LIMIT_REACHED_MASK;
                 if (sLimitCallback) sLimitCallback(trackedUid);
+                sLastLimitCallbackMap[trackedUid] = trackedValue & COUNTING_VALUE_MASK;
                 if (sBinderProxyThrottleCreate) {
                     ALOGI("Throttling binder proxy creates from uid %d in uid %d until binder proxy"
                           " count drops below %d",
@@ -452,8 +465,9 @@
                 ((trackedValue & COUNTING_VALUE_MASK) <= sBinderProxyCountLowWatermark)
                 )) {
                 ALOGI("Limit reached bit reset for uid %d (fewer than %d proxies from uid %d held)",
-                                   getuid(), mTrackedUid, sBinderProxyCountLowWatermark);
+                      getuid(), sBinderProxyCountLowWatermark, mTrackedUid);
                 sTrackingMap[mTrackedUid] &= ~LIMIT_REACHED_MASK;
+                sLastLimitCallbackMap.erase(mTrackedUid);
             }
             if (--sTrackingMap[mTrackedUid] == 0) {
                 sTrackingMap.erase(mTrackedUid);
diff --git a/libs/binder/IPCThreadState.cpp b/libs/binder/IPCThreadState.cpp
index 445df9e..c415ea0 100644
--- a/libs/binder/IPCThreadState.cpp
+++ b/libs/binder/IPCThreadState.cpp
@@ -1398,6 +1398,25 @@
     return ret;
 }
 
+#ifndef __ANDROID_VNDK__
+status_t IPCThreadState::getProcessFreezeInfo(pid_t pid, uint32_t *sync_received,
+                                              uint32_t *async_received)
+{
+    int ret = 0;
+    binder_frozen_status_info info;
+    info.pid = pid;
+
+#if defined(__ANDROID__)
+    if (ioctl(self()->mProcess->mDriverFD, BINDER_GET_FROZEN_INFO, &info) < 0)
+        ret = -errno;
+#endif
+    *sync_received = info.sync_recv;
+    *async_received = info.async_recv;
+
+    return ret;
+}
+#endif
+
 status_t IPCThreadState::freeze(pid_t pid, bool enable, uint32_t timeout_ms) {
     struct binder_freeze_info info;
     int ret = 0;
diff --git a/libs/binder/TEST_MAPPING b/libs/binder/TEST_MAPPING
index 1010a2d..b9f4502 100644
--- a/libs/binder/TEST_MAPPING
+++ b/libs/binder/TEST_MAPPING
@@ -25,9 +25,6 @@
       "name": "binderLibTest"
     },
     {
-      "name": "binderRpcTest"
-    },
-    {
       "name": "binderStabilityTest"
     },
     {
diff --git a/libs/binder/binder_module.h b/libs/binder/binder_module.h
index 9dea3b4..793795e 100644
--- a/libs/binder/binder_module.h
+++ b/libs/binder/binder_module.h
@@ -74,6 +74,8 @@
     //
     // Indicates whether the process has received any sync calls since last
     // freeze (cleared at freeze/unfreeze)
+    // bit 0: received sync transaction after being frozen
+    // bit 1: new pending sync transaction during freezing
     //
     __u32 sync_recv;
     //
diff --git a/libs/binder/include/binder/IPCThreadState.h b/libs/binder/include/binder/IPCThreadState.h
index 196a41b..b401ea9 100644
--- a/libs/binder/include/binder/IPCThreadState.h
+++ b/libs/binder/include/binder/IPCThreadState.h
@@ -53,6 +53,13 @@
     // Provide information about the state of a frozen process
     static  status_t            getProcessFreezeInfo(pid_t pid, bool *sync_received,
                                                     bool *async_received);
+
+    // TODO: Remove the above legacy duplicated function in next version
+#ifndef __ANDROID_VNDK__
+    static  status_t            getProcessFreezeInfo(pid_t pid, uint32_t *sync_received,
+                                                    uint32_t *async_received);
+#endif
+
             sp<ProcessState>    process();
             
             status_t            clearLastError();
diff --git a/libs/binder/libbinder.arm32.map b/libs/binder/libbinder.arm32.map
index f26c33d..9f10b67 100644
--- a/libs/binder/libbinder.arm32.map
+++ b/libs/binder/libbinder.arm32.map
@@ -149,6 +149,7 @@
     _ZN7android14IPCThreadState20clearCallingIdentityEv;
     _ZN7android14IPCThreadState20getAndExecuteCommandEv;
     _ZN7android14IPCThreadState20getProcessFreezeInfoEiPbS1_;
+    _ZN7android14IPCThreadState20getProcessFreezeInfoEiPjS1_;
     _ZN7android14IPCThreadState20handlePolledCommandsEv;
     _ZN7android14IPCThreadState20processPendingDerefsEv;
     _ZN7android14IPCThreadState20writeTransactionDataEijijRKNS_6ParcelEPi;
diff --git a/libs/binder/libbinder.arm64.map b/libs/binder/libbinder.arm64.map
index 6211250..1d3da4c 100644
--- a/libs/binder/libbinder.arm64.map
+++ b/libs/binder/libbinder.arm64.map
@@ -150,6 +150,7 @@
     _ZN7android14IPCThreadState20clearCallingIdentityEv;
     _ZN7android14IPCThreadState20getAndExecuteCommandEv;
     _ZN7android14IPCThreadState20getProcessFreezeInfoEiPbS1_;
+    _ZN7android14IPCThreadState20getProcessFreezeInfoEiPjS1_;
     _ZN7android14IPCThreadState20handlePolledCommandsEv;
     _ZN7android14IPCThreadState20processPendingDerefsEv;
     _ZN7android14IPCThreadState20writeTransactionDataEijijRKNS_6ParcelEPi;
diff --git a/libs/binder/tests/Android.bp b/libs/binder/tests/Android.bp
index fb84f04..d584897 100644
--- a/libs/binder/tests/Android.bp
+++ b/libs/binder/tests/Android.bp
@@ -154,7 +154,6 @@
         "binderRpcTestIface-cpp",
         "binderRpcTestIface-ndk_platform",
     ],
-    test_suites: ["general-tests"],
     require_root: true,
     // Prevent the unit test target from running on sc-dev as it's not ready.
     test_options: {
diff --git a/libs/binder/tests/binderLibTest.cpp b/libs/binder/tests/binderLibTest.cpp
index 3db0a8e..6cb7e7f 100644
--- a/libs/binder/tests/binderLibTest.cpp
+++ b/libs/binder/tests/binderLibTest.cpp
@@ -425,31 +425,30 @@
 
 TEST_F(BinderLibTest, Freeze) {
     Parcel data, reply, replypid;
-    std::ifstream freezer_file("/sys/fs/cgroup/freezer/cgroup.freeze");
+    std::ifstream freezer_file("/sys/fs/cgroup/uid_0/cgroup.freeze");
 
-    //Pass test on devices where the freezer is not supported
+    // Pass test on devices where the cgroup v2 freezer is not supported
     if (freezer_file.fail()) {
         GTEST_SKIP();
         return;
     }
 
-    std::string freezer_enabled;
-    std::getline(freezer_file, freezer_enabled);
-
-    //Pass test on devices where the freezer is disabled
-    if (freezer_enabled != "1") {
-        GTEST_SKIP();
-        return;
-    }
-
     EXPECT_THAT(m_server->transact(BINDER_LIB_TEST_GETPID, data, &replypid), StatusEq(NO_ERROR));
     int32_t pid = replypid.readInt32();
     for (int i = 0; i < 10; i++) {
         EXPECT_EQ(NO_ERROR, m_server->transact(BINDER_LIB_TEST_NOP_TRANSACTION_WAIT, data, &reply, TF_ONE_WAY));
     }
-    EXPECT_EQ(-EAGAIN, IPCThreadState::self()->freeze(pid, 1, 0));
-    EXPECT_EQ(-EAGAIN, IPCThreadState::self()->freeze(pid, 1, 0));
-    EXPECT_EQ(NO_ERROR, IPCThreadState::self()->freeze(pid, 1, 1000));
+
+    // Pass test on devices where BINDER_FREEZE ioctl is not supported
+    int ret = IPCThreadState::self()->freeze(pid, false, 0);
+    if (ret != 0) {
+        GTEST_SKIP();
+        return;
+    }
+
+    EXPECT_EQ(-EAGAIN, IPCThreadState::self()->freeze(pid, true, 0));
+    EXPECT_EQ(-EAGAIN, IPCThreadState::self()->freeze(pid, true, 0));
+    EXPECT_EQ(NO_ERROR, IPCThreadState::self()->freeze(pid, true, 1000));
     EXPECT_EQ(FAILED_TRANSACTION, m_server->transact(BINDER_LIB_TEST_NOP_TRANSACTION, data, &reply));
 
     bool sync_received, async_received;
@@ -460,6 +459,14 @@
     EXPECT_EQ(sync_received, 1);
     EXPECT_EQ(async_received, 0);
 
+    uint32_t sync_received2, async_received2;
+
+    EXPECT_EQ(NO_ERROR, IPCThreadState::self()->getProcessFreezeInfo(pid, &sync_received2,
+                &async_received2));
+
+    EXPECT_EQ(sync_received2, 1);
+    EXPECT_EQ(async_received2, 0);
+
     EXPECT_EQ(NO_ERROR, IPCThreadState::self()->freeze(pid, 0, 0));
     EXPECT_EQ(NO_ERROR, m_server->transact(BINDER_LIB_TEST_NOP_TRANSACTION, data, &reply));
 }
diff --git a/libs/graphicsenv/GraphicsEnv.cpp b/libs/graphicsenv/GraphicsEnv.cpp
index d54de49..7f0cac5 100644
--- a/libs/graphicsenv/GraphicsEnv.cpp
+++ b/libs/graphicsenv/GraphicsEnv.cpp
@@ -343,80 +343,6 @@
     return nullptr;
 }
 
-bool GraphicsEnv::checkAngleRules(void* so) {
-    auto manufacturer = base::GetProperty("ro.product.manufacturer", "UNSET");
-    auto model = base::GetProperty("ro.product.model", "UNSET");
-
-    auto ANGLEGetFeatureSupportUtilAPIVersion =
-            (fpANGLEGetFeatureSupportUtilAPIVersion)dlsym(so,
-                                                          "ANGLEGetFeatureSupportUtilAPIVersion");
-
-    if (!ANGLEGetFeatureSupportUtilAPIVersion) {
-        ALOGW("Cannot find ANGLEGetFeatureSupportUtilAPIVersion function");
-        return false;
-    }
-
-    // Negotiate the interface version by requesting most recent known to the platform
-    unsigned int versionToUse = CURRENT_ANGLE_API_VERSION;
-    if (!(ANGLEGetFeatureSupportUtilAPIVersion)(&versionToUse)) {
-        ALOGW("Cannot use ANGLE feature-support library, it is older than supported by EGL, "
-              "requested version %u",
-              versionToUse);
-        return false;
-    }
-
-    // Add and remove versions below as needed
-    bool useAngle = false;
-    switch (versionToUse) {
-        case 2: {
-            ALOGV("Using version %d of ANGLE feature-support library", versionToUse);
-            void* rulesHandle = nullptr;
-            int rulesVersion = 0;
-            void* systemInfoHandle = nullptr;
-
-            // Get the symbols for the feature-support-utility library:
-#define GET_SYMBOL(symbol)                                                 \
-    fp##symbol symbol = (fp##symbol)dlsym(so, #symbol);                    \
-    if (!symbol) {                                                         \
-        ALOGW("Cannot find " #symbol " in ANGLE feature-support library"); \
-        break;                                                             \
-    }
-            GET_SYMBOL(ANGLEAndroidParseRulesString);
-            GET_SYMBOL(ANGLEGetSystemInfo);
-            GET_SYMBOL(ANGLEAddDeviceInfoToSystemInfo);
-            GET_SYMBOL(ANGLEShouldBeUsedForApplication);
-            GET_SYMBOL(ANGLEFreeRulesHandle);
-            GET_SYMBOL(ANGLEFreeSystemInfoHandle);
-
-            // Parse the rules, obtain the SystemInfo, and evaluate the
-            // application against the rules:
-            if (!(ANGLEAndroidParseRulesString)(mRulesBuffer.data(), &rulesHandle, &rulesVersion)) {
-                ALOGW("ANGLE feature-support library cannot parse rules file");
-                break;
-            }
-            if (!(ANGLEGetSystemInfo)(&systemInfoHandle)) {
-                ALOGW("ANGLE feature-support library cannot obtain SystemInfo");
-                break;
-            }
-            if (!(ANGLEAddDeviceInfoToSystemInfo)(manufacturer.c_str(), model.c_str(),
-                                                  systemInfoHandle)) {
-                ALOGW("ANGLE feature-support library cannot add device info to SystemInfo");
-                break;
-            }
-            useAngle = (ANGLEShouldBeUsedForApplication)(rulesHandle, rulesVersion,
-                                                         systemInfoHandle, mAngleAppName.c_str());
-            (ANGLEFreeRulesHandle)(rulesHandle);
-            (ANGLEFreeSystemInfoHandle)(systemInfoHandle);
-        } break;
-
-        default:
-            ALOGW("Version %u of ANGLE feature-support library is NOT supported.", versionToUse);
-    }
-
-    ALOGV("Close temporarily-loaded ANGLE opt-in/out logic");
-    return useAngle;
-}
-
 bool GraphicsEnv::shouldUseAngle(std::string appName) {
     if (appName != mAngleAppName) {
         // Make sure we are checking the app we were init'ed for
@@ -444,31 +370,20 @@
     const char* ANGLE_PREFER_ANGLE = "angle";
     const char* ANGLE_PREFER_NATIVE = "native";
 
+    mUseAngle = NO;
     if (mAngleDeveloperOptIn == ANGLE_PREFER_ANGLE) {
         ALOGV("User set \"Developer Options\" to force the use of ANGLE");
         mUseAngle = YES;
     } else if (mAngleDeveloperOptIn == ANGLE_PREFER_NATIVE) {
         ALOGV("User set \"Developer Options\" to force the use of Native");
-        mUseAngle = NO;
     } else {
-        // The "Developer Options" value wasn't set to force the use of ANGLE.  Need to temporarily
-        // load ANGLE and call the updatable opt-in/out logic:
-        void* featureSo = loadLibrary("feature_support");
-        if (featureSo) {
-            ALOGV("loaded ANGLE's opt-in/out logic from namespace");
-            mUseAngle = checkAngleRules(featureSo) ? YES : NO;
-            dlclose(featureSo);
-            featureSo = nullptr;
-        } else {
-            ALOGV("Could not load the ANGLE opt-in/out logic, cannot use ANGLE.");
-        }
+        ALOGV("User set invalid \"Developer Options\": '%s'", mAngleDeveloperOptIn.c_str());
     }
 }
 
 void GraphicsEnv::setAngleInfo(const std::string path, const std::string appName,
                                const std::string developerOptIn,
-                               const std::vector<std::string> eglFeatures, const int rulesFd,
-                               const long rulesOffset, const long rulesLength) {
+                               const std::vector<std::string> eglFeatures) {
     if (mUseAngle != UNKNOWN) {
         // We've already figured out an answer for this app, so just return.
         ALOGV("Already evaluated the rules file for '%s': use ANGLE = %s", appName.c_str(),
@@ -485,22 +400,6 @@
     ALOGV("setting ANGLE application opt-in to '%s'", developerOptIn.c_str());
     mAngleDeveloperOptIn = developerOptIn;
 
-    lseek(rulesFd, rulesOffset, SEEK_SET);
-    mRulesBuffer = std::vector<char>(rulesLength + 1);
-    ssize_t numBytesRead = read(rulesFd, mRulesBuffer.data(), rulesLength);
-    if (numBytesRead < 0) {
-        ALOGE("Cannot read rules file: numBytesRead = %zd", numBytesRead);
-        numBytesRead = 0;
-    } else if (numBytesRead == 0) {
-        ALOGW("Empty rules file");
-    }
-    if (numBytesRead != rulesLength) {
-        ALOGW("Did not read all of the necessary bytes from the rules file."
-              "expected: %ld, got: %zd",
-              rulesLength, numBytesRead);
-    }
-    mRulesBuffer[numBytesRead] = '\0';
-
     // Update the current status of whether we should use ANGLE or not
     updateUseAngle();
 }
diff --git a/libs/graphicsenv/include/graphicsenv/GraphicsEnv.h b/libs/graphicsenv/include/graphicsenv/GraphicsEnv.h
index 900fc49..56d1139 100644
--- a/libs/graphicsenv/include/graphicsenv/GraphicsEnv.h
+++ b/libs/graphicsenv/include/graphicsenv/GraphicsEnv.h
@@ -97,8 +97,7 @@
     // in the search path must have a '!' after the zip filename, e.g.
     //     /system/app/ANGLEPrebuilt/ANGLEPrebuilt.apk!/lib/arm64-v8a
     void setAngleInfo(const std::string path, const std::string appName, std::string devOptIn,
-                      const std::vector<std::string> eglFeatures, const int rulesFd,
-                      const long rulesOffset, const long rulesLength);
+                      const std::vector<std::string> eglFeatures);
     // Get the ANGLE driver namespace.
     android_namespace_t* getAngleNamespace();
     // Get the app name for ANGLE debug message.
@@ -129,8 +128,6 @@
 
     // Load requested ANGLE library.
     void* loadLibrary(std::string name);
-    // Check ANGLE support with the rules.
-    bool checkAngleRules(void* so);
     // Update whether ANGLE should be used.
     void updateUseAngle();
     // Link updatable driver namespace with llndk and vndk-sp libs.
@@ -159,8 +156,6 @@
     std::string mAngleDeveloperOptIn;
     // ANGLE EGL features;
     std::vector<std::string> mAngleEglFeatures;
-    // ANGLE rules.
-    std::vector<char> mRulesBuffer;
     // Use ANGLE flag.
     UseAngle mUseAngle = UNKNOWN;
     // Vulkan debug layers libs.
diff --git a/libs/gui/BLASTBufferQueue.cpp b/libs/gui/BLASTBufferQueue.cpp
index f7ec8ef..94e1ae1 100644
--- a/libs/gui/BLASTBufferQueue.cpp
+++ b/libs/gui/BLASTBufferQueue.cpp
@@ -118,12 +118,12 @@
 }
 
 void BLASTBufferItemConsumer::setBlastBufferQueue(BLASTBufferQueue* blastbufferqueue) {
-    Mutex::Autolock lock(mMutex);
+    std::scoped_lock lock(mBufferQueueMutex);
     mBLASTBufferQueue = blastbufferqueue;
 }
 
 void BLASTBufferItemConsumer::onSidebandStreamChanged() {
-    Mutex::Autolock lock(mMutex);
+    std::scoped_lock lock(mBufferQueueMutex);
     if (mBLASTBufferQueue != nullptr) {
         sp<NativeHandle> stream = getSidebandStream();
         mBLASTBufferQueue->setSidebandStream(stream);
diff --git a/libs/gui/include/gui/BLASTBufferQueue.h b/libs/gui/include/gui/BLASTBufferQueue.h
index ea9b1c6..6c5b2aa 100644
--- a/libs/gui/include/gui/BLASTBufferQueue.h
+++ b/libs/gui/include/gui/BLASTBufferQueue.h
@@ -62,11 +62,12 @@
     uint64_t mCurrentFrameNumber = 0;
 
     Mutex mMutex;
+    std::mutex mBufferQueueMutex;
     ConsumerFrameEventHistory mFrameEventHistory GUARDED_BY(mMutex);
     std::queue<uint64_t> mDisconnectEvents GUARDED_BY(mMutex);
     bool mCurrentlyConnected GUARDED_BY(mMutex);
     bool mPreviouslyConnected GUARDED_BY(mMutex);
-    BLASTBufferQueue* mBLASTBufferQueue GUARDED_BY(mMutex);
+    BLASTBufferQueue* mBLASTBufferQueue GUARDED_BY(mBufferQueueMutex);
 };
 
 class BLASTBufferQueue
diff --git a/libs/renderengine/skia/SkiaGLRenderEngine.cpp b/libs/renderengine/skia/SkiaGLRenderEngine.cpp
index 3c59f11..94023e6 100644
--- a/libs/renderengine/skia/SkiaGLRenderEngine.cpp
+++ b/libs/renderengine/skia/SkiaGLRenderEngine.cpp
@@ -424,14 +424,28 @@
     return fenceFd;
 }
 
-bool SkiaGLRenderEngine::waitFence(base::unique_fd fenceFd) {
+void SkiaGLRenderEngine::waitFence(base::borrowed_fd fenceFd) {
+    if (fenceFd.get() >= 0 && !waitGpuFence(fenceFd)) {
+        ATRACE_NAME("SkiaGLRenderEngine::waitFence");
+        sync_wait(fenceFd.get(), -1);
+    }
+}
+
+bool SkiaGLRenderEngine::waitGpuFence(base::borrowed_fd fenceFd) {
     if (!gl::GLExtensions::getInstance().hasNativeFenceSync() ||
         !gl::GLExtensions::getInstance().hasWaitSync()) {
         return false;
     }
 
+    // Duplicate the fence for passing to eglCreateSyncKHR.
+    base::unique_fd fenceDup(dup(fenceFd.get()));
+    if (fenceDup.get() < 0) {
+        ALOGE("failed to create duplicate fence fd: %d", fenceDup.get());
+        return false;
+    }
+
     // release the fd and transfer the ownership to EGLSync
-    EGLint attribs[] = {EGL_SYNC_NATIVE_FENCE_FD_ANDROID, fenceFd.release(), EGL_NONE};
+    EGLint attribs[] = {EGL_SYNC_NATIVE_FENCE_FD_ANDROID, fenceDup.release(), EGL_NONE};
     EGLSyncKHR sync = eglCreateSyncKHR(mEGLDisplay, EGL_SYNC_NATIVE_FENCE_ANDROID, attribs);
     if (sync == EGL_NO_SYNC_KHR) {
         ALOGE("failed to create EGL native fence sync: %#x", eglGetError());
@@ -726,14 +740,6 @@
         return NO_ERROR;
     }
 
-    if (bufferFence.get() >= 0) {
-        // Duplicate the fence for passing to waitFence.
-        base::unique_fd bufferFenceDup(dup(bufferFence.get()));
-        if (bufferFenceDup < 0 || !waitFence(std::move(bufferFenceDup))) {
-            ATRACE_NAME("Waiting before draw");
-            sync_wait(bufferFence.get(), -1);
-        }
-    }
     if (buffer == nullptr) {
         ALOGE("No output buffer provided. Aborting GPU composition.");
         return BAD_VALUE;
@@ -758,6 +764,9 @@
                                                                true, mTextureCleanupMgr);
     }
 
+    // wait on the buffer to be ready to use prior to using it
+    waitFence(bufferFence);
+
     const ui::Dataspace dstDataspace =
             mUseColorManagement ? display.outputDataspace : ui::Dataspace::V0_SRGB_LINEAR;
     sk_sp<SkSurface> dstSurface = surfaceTextureRef->getOrCreateSurface(dstDataspace, grContext);
@@ -1014,6 +1023,12 @@
                                                       false, mTextureCleanupMgr);
             }
 
+            // if the layer's buffer has a fence, then we must must respect the fence prior to using
+            // the buffer.
+            if (layer->source.buffer.fence != nullptr) {
+                waitFence(layer->source.buffer.fence->get());
+            }
+
             // isOpaque means we need to ignore the alpha in the image,
             // replacing it with the alpha specified by the LayerSettings. See
             // https://developer.android.com/reference/android/view/SurfaceControl.Builder#setOpaque(boolean)
diff --git a/libs/renderengine/skia/SkiaGLRenderEngine.h b/libs/renderengine/skia/SkiaGLRenderEngine.h
index a852bbc..238ad8f 100644
--- a/libs/renderengine/skia/SkiaGLRenderEngine.h
+++ b/libs/renderengine/skia/SkiaGLRenderEngine.h
@@ -99,7 +99,10 @@
     inline GrDirectContext* getActiveGrContext() const;
 
     base::unique_fd flush();
-    bool waitFence(base::unique_fd fenceFd);
+    // waitFence attempts to wait in the GPU, and if unable to waits on the CPU instead.
+    void waitFence(base::borrowed_fd fenceFd);
+    bool waitGpuFence(base::borrowed_fd fenceFd);
+
     void initCanvas(SkCanvas* canvas, const DisplaySettings& display);
     void drawShadow(SkCanvas* canvas, const SkRRect& casterRRect,
                     const ShadowSettings& shadowSettings);
diff --git a/services/inputflinger/InputListener.cpp b/services/inputflinger/InputListener.cpp
index 33b3e1e..71b0f5f 100644
--- a/services/inputflinger/InputListener.cpp
+++ b/services/inputflinger/InputListener.cpp
@@ -287,16 +287,16 @@
 
 // --- NotifyPointerCaptureChangedArgs ---
 
-NotifyPointerCaptureChangedArgs::NotifyPointerCaptureChangedArgs(int32_t id, nsecs_t eventTime,
-                                                                 bool enabled)
-      : NotifyArgs(id, eventTime), enabled(enabled) {}
+NotifyPointerCaptureChangedArgs::NotifyPointerCaptureChangedArgs(
+        int32_t id, nsecs_t eventTime, const PointerCaptureRequest& request)
+      : NotifyArgs(id, eventTime), request(request) {}
 
 NotifyPointerCaptureChangedArgs::NotifyPointerCaptureChangedArgs(
         const NotifyPointerCaptureChangedArgs& other)
-      : NotifyArgs(other.id, other.eventTime), enabled(other.enabled) {}
+      : NotifyArgs(other.id, other.eventTime), request(other.request) {}
 
 bool NotifyPointerCaptureChangedArgs::operator==(const NotifyPointerCaptureChangedArgs& rhs) const {
-    return id == rhs.id && eventTime == rhs.eventTime && enabled == rhs.enabled;
+    return id == rhs.id && eventTime == rhs.eventTime && request == rhs.request;
 }
 
 void NotifyPointerCaptureChangedArgs::notify(const sp<InputListenerInterface>& listener) const {
diff --git a/services/inputflinger/InputReaderBase.cpp b/services/inputflinger/InputReaderBase.cpp
index 9cc777d..d34482f 100644
--- a/services/inputflinger/InputReaderBase.cpp
+++ b/services/inputflinger/InputReaderBase.cpp
@@ -67,6 +67,9 @@
     if (changes & CHANGE_EXTERNAL_STYLUS_PRESENCE) {
         result += "EXTERNAL_STYLUS_PRESENCE | ";
     }
+    if (changes & CHANGE_POINTER_CAPTURE) {
+        result += "POINTER_CAPTURE | ";
+    }
     if (changes & CHANGE_ENABLED_STATE) {
         result += "ENABLED_STATE | ";
     }
diff --git a/services/inputflinger/benchmarks/InputDispatcher_benchmarks.cpp b/services/inputflinger/benchmarks/InputDispatcher_benchmarks.cpp
index bc77b8a..aa8cc30 100644
--- a/services/inputflinger/benchmarks/InputDispatcher_benchmarks.cpp
+++ b/services/inputflinger/benchmarks/InputDispatcher_benchmarks.cpp
@@ -113,7 +113,7 @@
 
     void onPointerDownOutsideFocus(const sp<IBinder>& newToken) override {}
 
-    void setPointerCapture(bool enabled) override {}
+    void setPointerCapture(const PointerCaptureRequest&) override {}
 
     void notifyDropWindow(const sp<IBinder>&, float x, float y) override {}
 
diff --git a/services/inputflinger/dispatcher/Entry.cpp b/services/inputflinger/dispatcher/Entry.cpp
index 881024f..5c3747e 100644
--- a/services/inputflinger/dispatcher/Entry.cpp
+++ b/services/inputflinger/dispatcher/Entry.cpp
@@ -119,15 +119,15 @@
 // PointerCaptureChanged notifications always go to apps, so set the flag POLICY_FLAG_PASS_TO_USER
 // for all entries.
 PointerCaptureChangedEntry::PointerCaptureChangedEntry(int32_t id, nsecs_t eventTime,
-                                                       bool hasPointerCapture)
+                                                       const PointerCaptureRequest& request)
       : EventEntry(id, Type::POINTER_CAPTURE_CHANGED, eventTime, POLICY_FLAG_PASS_TO_USER),
-        pointerCaptureEnabled(hasPointerCapture) {}
+        pointerCaptureRequest(request) {}
 
 PointerCaptureChangedEntry::~PointerCaptureChangedEntry() {}
 
 std::string PointerCaptureChangedEntry::getDescription() const {
     return StringPrintf("PointerCaptureChangedEvent(pointerCaptureEnabled=%s)",
-                        pointerCaptureEnabled ? "true" : "false");
+                        pointerCaptureRequest.enable ? "true" : "false");
 }
 
 // --- DragEntry ---
@@ -324,8 +324,7 @@
         keyEntry(nullptr),
         userActivityEventType(0),
         seq(0),
-        handled(false),
-        enabled(false) {}
+        handled(false) {}
 
 CommandEntry::~CommandEntry() {}
 
diff --git a/services/inputflinger/dispatcher/Entry.h b/services/inputflinger/dispatcher/Entry.h
index ebbd8e9..6f1dfad 100644
--- a/services/inputflinger/dispatcher/Entry.h
+++ b/services/inputflinger/dispatcher/Entry.h
@@ -104,9 +104,9 @@
 };
 
 struct PointerCaptureChangedEntry : EventEntry {
-    bool pointerCaptureEnabled;
+    const PointerCaptureRequest pointerCaptureRequest;
 
-    PointerCaptureChangedEntry(int32_t id, nsecs_t eventTime, bool hasPointerCapture);
+    PointerCaptureChangedEntry(int32_t id, nsecs_t eventTime, const PointerCaptureRequest&);
     std::string getDescription() const override;
 
     ~PointerCaptureChangedEntry() override;
@@ -284,7 +284,7 @@
     sp<IBinder> oldToken;
     sp<IBinder> newToken;
     std::string obscuringPackage;
-    bool enabled;
+    PointerCaptureRequest pointerCaptureRequest;
     int32_t pid;
     nsecs_t consumeTime; // time when the event was consumed by InputConsumer
     int32_t displayId;
diff --git a/services/inputflinger/dispatcher/InputDispatcher.cpp b/services/inputflinger/dispatcher/InputDispatcher.cpp
index b8f16b0..7ed0d4e 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.cpp
+++ b/services/inputflinger/dispatcher/InputDispatcher.cpp
@@ -523,7 +523,6 @@
         mInTouchMode(true),
         mMaximumObscuringOpacityForTouch(1.0f),
         mFocusedDisplayId(ADISPLAY_ID_DEFAULT),
-        mFocusedWindowRequestedPointerCapture(false),
         mWindowTokenWithPointerCapture(nullptr),
         mLatencyAggregator(),
         mLatencyTracker(&mLatencyAggregator),
@@ -1306,36 +1305,51 @@
 void InputDispatcher::dispatchPointerCaptureChangedLocked(
         nsecs_t currentTime, const std::shared_ptr<PointerCaptureChangedEntry>& entry,
         DropReason& dropReason) {
+    dropReason = DropReason::NOT_DROPPED;
+
     const bool haveWindowWithPointerCapture = mWindowTokenWithPointerCapture != nullptr;
-    if (entry->pointerCaptureEnabled && haveWindowWithPointerCapture) {
-        LOG_ALWAYS_FATAL("Pointer Capture has already been enabled for the window.");
-    }
-    if (!entry->pointerCaptureEnabled && !haveWindowWithPointerCapture) {
-        // Pointer capture was already forcefully disabled because of focus change.
-        dropReason = DropReason::NOT_DROPPED;
-        return;
-    }
-
-    // Set drop reason for early returns
-    dropReason = DropReason::NO_POINTER_CAPTURE;
-
     sp<IBinder> token;
-    if (entry->pointerCaptureEnabled) {
-        // Enable Pointer Capture
-        if (!mFocusedWindowRequestedPointerCapture) {
+
+    if (entry->pointerCaptureRequest.enable) {
+        // Enable Pointer Capture.
+        if (haveWindowWithPointerCapture &&
+            (entry->pointerCaptureRequest == mCurrentPointerCaptureRequest)) {
+            LOG_ALWAYS_FATAL("This request to enable Pointer Capture has already been dispatched "
+                             "to the window.");
+        }
+        if (!mCurrentPointerCaptureRequest.enable) {
             // This can happen if a window requests capture and immediately releases capture.
             ALOGW("No window requested Pointer Capture.");
+            dropReason = DropReason::NO_POINTER_CAPTURE;
             return;
         }
+        if (entry->pointerCaptureRequest.seq != mCurrentPointerCaptureRequest.seq) {
+            ALOGI("Skipping dispatch of Pointer Capture being enabled: sequence number mismatch.");
+            return;
+        }
+
         token = mFocusResolver.getFocusedWindowToken(mFocusedDisplayId);
         LOG_ALWAYS_FATAL_IF(!token, "Cannot find focused window for Pointer Capture.");
         mWindowTokenWithPointerCapture = token;
     } else {
-        // Disable Pointer Capture
+        // Disable Pointer Capture.
+        // We do not check if the sequence number matches for requests to disable Pointer Capture
+        // for two reasons:
+        //  1. Pointer Capture can be disabled by a focus change, which means we can get two entries
+        //     to disable capture with the same sequence number: one generated by
+        //     disablePointerCaptureForcedLocked() and another as an acknowledgement of Pointer
+        //     Capture being disabled in InputReader.
+        //  2. We respect any request to disable Pointer Capture generated by InputReader, since the
+        //     actual Pointer Capture state that affects events being generated by input devices is
+        //     in InputReader.
+        if (!haveWindowWithPointerCapture) {
+            // Pointer capture was already forcefully disabled because of focus change.
+            dropReason = DropReason::NOT_DROPPED;
+            return;
+        }
         token = mWindowTokenWithPointerCapture;
         mWindowTokenWithPointerCapture = nullptr;
-        if (mFocusedWindowRequestedPointerCapture) {
-            mFocusedWindowRequestedPointerCapture = false;
+        if (mCurrentPointerCaptureRequest.enable) {
             setPointerCaptureLocked(false);
         }
     }
@@ -1344,8 +1358,7 @@
     if (channel == nullptr) {
         // Window has gone away, clean up Pointer Capture state.
         mWindowTokenWithPointerCapture = nullptr;
-        if (mFocusedWindowRequestedPointerCapture) {
-            mFocusedWindowRequestedPointerCapture = false;
+        if (mCurrentPointerCaptureRequest.enable) {
             setPointerCaptureLocked(false);
         }
         return;
@@ -3197,7 +3210,7 @@
                         static_cast<const PointerCaptureChangedEntry&>(eventEntry);
                 status = connection->inputPublisher
                                  .publishCaptureEvent(dispatchEntry->seq, captureEntry.id,
-                                                      captureEntry.pointerCaptureEnabled);
+                                                      captureEntry.pointerCaptureRequest.enable);
                 break;
             }
 
@@ -3995,14 +4008,14 @@
 void InputDispatcher::notifyPointerCaptureChanged(const NotifyPointerCaptureChangedArgs* args) {
 #if DEBUG_INBOUND_EVENT_DETAILS
     ALOGD("notifyPointerCaptureChanged - eventTime=%" PRId64 ", enabled=%s", args->eventTime,
-          args->enabled ? "true" : "false");
+          args->request.enable ? "true" : "false");
 #endif
 
     bool needWake;
     { // acquire lock
         std::scoped_lock _l(mLock);
         auto entry = std::make_unique<PointerCaptureChangedEntry>(args->id, args->eventTime,
-                                                                  args->enabled);
+                                                                  args->request);
         needWake = enqueueInboundEventLocked(std::move(entry));
     } // release lock
 
@@ -4946,8 +4959,8 @@
 std::string InputDispatcher::dumpPointerCaptureStateLocked() {
     std::string dump;
 
-    dump += StringPrintf(INDENT "FocusedWindowRequestedPointerCapture: %s\n",
-                         toString(mFocusedWindowRequestedPointerCapture));
+    dump += StringPrintf(INDENT "Pointer Capture Requested: %s\n",
+                         toString(mCurrentPointerCaptureRequest.enable));
 
     std::string windowName = "None";
     if (mWindowTokenWithPointerCapture) {
@@ -4956,7 +4969,7 @@
         windowName = captureWindowHandle ? captureWindowHandle->getName().c_str()
                                          : "token has capture without window";
     }
-    dump += StringPrintf(INDENT "CurrentWindowWithPointerCapture: %s\n", windowName.c_str());
+    dump += StringPrintf(INDENT "Current Window with Pointer Capture: %s\n", windowName.c_str());
 
     return dump;
 }
@@ -5424,14 +5437,13 @@
             return;
         }
 
-        if (enabled == mFocusedWindowRequestedPointerCapture) {
+        if (enabled == mCurrentPointerCaptureRequest.enable) {
             ALOGW("Ignoring request to %s Pointer Capture: "
                   "window has %s requested pointer capture.",
                   enabled ? "enable" : "disable", enabled ? "already" : "not");
             return;
         }
 
-        mFocusedWindowRequestedPointerCapture = enabled;
         setPointerCaptureLocked(enabled);
     } // release lock
 
@@ -6203,14 +6215,13 @@
 }
 
 void InputDispatcher::disablePointerCaptureForcedLocked() {
-    if (!mFocusedWindowRequestedPointerCapture && !mWindowTokenWithPointerCapture) {
+    if (!mCurrentPointerCaptureRequest.enable && !mWindowTokenWithPointerCapture) {
         return;
     }
 
     ALOGD_IF(DEBUG_FOCUS, "Disabling Pointer Capture because the window lost focus.");
 
-    if (mFocusedWindowRequestedPointerCapture) {
-        mFocusedWindowRequestedPointerCapture = false;
+    if (mCurrentPointerCaptureRequest.enable) {
         setPointerCaptureLocked(false);
     }
 
@@ -6227,14 +6238,16 @@
     }
 
     auto entry = std::make_unique<PointerCaptureChangedEntry>(mIdGenerator.nextId(), now(),
-                                                              false /* hasCapture */);
+                                                              mCurrentPointerCaptureRequest);
     mInboundQueue.push_front(std::move(entry));
 }
 
 void InputDispatcher::setPointerCaptureLocked(bool enabled) {
+    mCurrentPointerCaptureRequest.enable = enabled;
+    mCurrentPointerCaptureRequest.seq++;
     std::unique_ptr<CommandEntry> commandEntry = std::make_unique<CommandEntry>(
             &InputDispatcher::doSetPointerCaptureLockedInterruptible);
-    commandEntry->enabled = enabled;
+    commandEntry->pointerCaptureRequest = mCurrentPointerCaptureRequest;
     postCommandLocked(std::move(commandEntry));
 }
 
@@ -6242,7 +6255,7 @@
         android::inputdispatcher::CommandEntry* commandEntry) {
     mLock.unlock();
 
-    mPolicy->setPointerCapture(commandEntry->enabled);
+    mPolicy->setPointerCapture(commandEntry->pointerCaptureRequest);
 
     mLock.lock();
 }
diff --git a/services/inputflinger/dispatcher/InputDispatcher.h b/services/inputflinger/dispatcher/InputDispatcher.h
index 7eb7400..053e821 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.h
+++ b/services/inputflinger/dispatcher/InputDispatcher.h
@@ -357,10 +357,12 @@
 
     // Keeps track of the focused window per display and determines focus changes.
     FocusResolver mFocusResolver GUARDED_BY(mLock);
-    // Whether the focused window on the focused display has requested Pointer Capture.
-    // The state of this variable should always be in sync with the state of Pointer Capture in the
-    // policy, which is updated through setPointerCaptureLocked(enabled).
-    bool mFocusedWindowRequestedPointerCapture GUARDED_BY(mLock);
+
+    // The enabled state of this request is true iff the focused window on the focused display has
+    // requested Pointer Capture. This request also contains the sequence number associated with the
+    // current request. The state of this variable should always be in sync with the state of
+    // Pointer Capture in the policy, and is only updated through setPointerCaptureLocked(request).
+    PointerCaptureRequest mCurrentPointerCaptureRequest GUARDED_BY(mLock);
 
     // The window token that has Pointer Capture.
     // This should be in sync with PointerCaptureChangedEvents dispatched to the input channel.
@@ -370,7 +372,7 @@
     void disablePointerCaptureForcedLocked() REQUIRES(mLock);
 
     // Set the Pointer Capture state in the Policy.
-    void setPointerCaptureLocked(bool enabled) REQUIRES(mLock);
+    void setPointerCaptureLocked(bool enable) REQUIRES(mLock);
 
     // Dispatcher state at time of last ANR.
     std::string mLastAnrState GUARDED_BY(mLock);
diff --git a/services/inputflinger/dispatcher/include/InputDispatcherPolicyInterface.h b/services/inputflinger/dispatcher/include/InputDispatcherPolicyInterface.h
index 219f45a..fd591e0 100644
--- a/services/inputflinger/dispatcher/include/InputDispatcherPolicyInterface.h
+++ b/services/inputflinger/dispatcher/include/InputDispatcherPolicyInterface.h
@@ -156,7 +156,7 @@
      *
      * InputDispatcher is solely responsible for updating the Pointer Capture state.
      */
-    virtual void setPointerCapture(bool enabled) = 0;
+    virtual void setPointerCapture(const PointerCaptureRequest&) = 0;
 
     /* Notifies the policy that the drag window has moved over to another window */
     virtual void notifyDropWindow(const sp<IBinder>& token, float x, float y) = 0;
diff --git a/services/inputflinger/docs/pointer_capture.md b/services/inputflinger/docs/pointer_capture.md
index 8da699d..0b44187 100644
--- a/services/inputflinger/docs/pointer_capture.md
+++ b/services/inputflinger/docs/pointer_capture.md
@@ -17,6 +17,8 @@
 
 `InputDispatcher` is responsible for controlling the state of Pointer Capture. Since the feature requires changes to how events are generated, Pointer Capture is configured in `InputReader`.
 
+We use a sequence number to synchronize different requests to enable Pointer Capture between InputReader and InputDispatcher.
+
 ### Enabling Pointer Capture
 
 There are four key steps that take place when Pointer Capture is enabled:
@@ -40,5 +42,5 @@
 
 `InputDispatcher` tracks two pieces of state information regarding Pointer Capture:
 
-- `mFocusedWindowRequestedPointerCapture`: Whether or not the focused window has requested Pointer Capture. This is updated whenever the Dispatcher receives requests from `InputManagerService`.
+- `mCurrentPointerCaptureRequest`: The sequence number of the current Pointer Capture request. This request is enabled iff the focused window has requested Pointer Capture. This is updated whenever the Dispatcher receives requests from `InputManagerService`.
 - `mWindowTokenWithPointerCapture`: The Binder token of the `InputWindow` that currently has Pointer Capture. This is only updated during the dispatch cycle. If it is not `nullptr`, it signifies that the window was notified that it has Pointer Capture.
diff --git a/services/inputflinger/include/InputListener.h b/services/inputflinger/include/InputListener.h
index 4b7d26d..fe74214 100644
--- a/services/inputflinger/include/InputListener.h
+++ b/services/inputflinger/include/InputListener.h
@@ -211,11 +211,12 @@
 
 /* Describes a change in the state of Pointer Capture. */
 struct NotifyPointerCaptureChangedArgs : public NotifyArgs {
-    bool enabled;
+    // The sequence number of the Pointer Capture request, if enabled.
+    PointerCaptureRequest request;
 
     inline NotifyPointerCaptureChangedArgs() {}
 
-    NotifyPointerCaptureChangedArgs(int32_t id, nsecs_t eventTime, bool enabled);
+    NotifyPointerCaptureChangedArgs(int32_t id, nsecs_t eventTime, const PointerCaptureRequest&);
 
     NotifyPointerCaptureChangedArgs(const NotifyPointerCaptureChangedArgs& other);
 
diff --git a/services/inputflinger/include/InputReaderBase.h b/services/inputflinger/include/InputReaderBase.h
index 7fdbbfd..3c8ac1c 100644
--- a/services/inputflinger/include/InputReaderBase.h
+++ b/services/inputflinger/include/InputReaderBase.h
@@ -279,29 +279,30 @@
     // True to show the location of touches on the touch screen as spots.
     bool showTouches;
 
-    // True if pointer capture is enabled.
-    bool pointerCapture;
+    // The latest request to enable or disable Pointer Capture.
+    PointerCaptureRequest pointerCaptureRequest;
 
     // The set of currently disabled input devices.
     std::set<int32_t> disabledDevices;
 
-    InputReaderConfiguration() :
-            virtualKeyQuietTime(0),
+    InputReaderConfiguration()
+          : virtualKeyQuietTime(0),
             pointerVelocityControlParameters(1.0f, 500.0f, 3000.0f, 3.0f),
             wheelVelocityControlParameters(1.0f, 15.0f, 50.0f, 4.0f),
             pointerGesturesEnabled(true),
-            pointerGestureQuietInterval(100 * 1000000LL), // 100 ms
-            pointerGestureDragMinSwitchSpeed(50), // 50 pixels per second
-            pointerGestureTapInterval(150 * 1000000LL), // 150 ms
-            pointerGestureTapDragInterval(150 * 1000000LL), // 150 ms
-            pointerGestureTapSlop(10.0f), // 10 pixels
+            pointerGestureQuietInterval(100 * 1000000LL),            // 100 ms
+            pointerGestureDragMinSwitchSpeed(50),                    // 50 pixels per second
+            pointerGestureTapInterval(150 * 1000000LL),              // 150 ms
+            pointerGestureTapDragInterval(150 * 1000000LL),          // 150 ms
+            pointerGestureTapSlop(10.0f),                            // 10 pixels
             pointerGestureMultitouchSettleInterval(100 * 1000000LL), // 100 ms
-            pointerGestureMultitouchMinDistance(15), // 15 pixels
-            pointerGestureSwipeTransitionAngleCosine(0.2588f), // cosine of 75 degrees
+            pointerGestureMultitouchMinDistance(15),                 // 15 pixels
+            pointerGestureSwipeTransitionAngleCosine(0.2588f),       // cosine of 75 degrees
             pointerGestureSwipeMaxWidthRatio(0.25f),
             pointerGestureMovementSpeedRatio(0.8f),
             pointerGestureZoomSpeedRatio(0.3f),
-            showTouches(false), pointerCapture(false) { }
+            showTouches(false),
+            pointerCaptureRequest() {}
 
     static std::string changesToString(uint32_t changes);
 
diff --git a/services/inputflinger/reader/InputReader.cpp b/services/inputflinger/reader/InputReader.cpp
index 10c04f6..5120860 100644
--- a/services/inputflinger/reader/InputReader.cpp
+++ b/services/inputflinger/reader/InputReader.cpp
@@ -367,9 +367,15 @@
     }
 
     if (changes & InputReaderConfiguration::CHANGE_POINTER_CAPTURE) {
-        const NotifyPointerCaptureChangedArgs args(mContext.getNextId(), now,
-                                                   mConfig.pointerCapture);
-        mQueuedListener->notifyPointerCaptureChanged(&args);
+        if (mCurrentPointerCaptureRequest == mConfig.pointerCaptureRequest) {
+            ALOGV("Skipping notifying pointer capture changes: "
+                  "There was no change in the pointer capture state.");
+        } else {
+            mCurrentPointerCaptureRequest = mConfig.pointerCaptureRequest;
+            const NotifyPointerCaptureChangedArgs args(mContext.getNextId(), now,
+                                                       mCurrentPointerCaptureRequest);
+            mQueuedListener->notifyPointerCaptureChanged(&args);
+        }
     }
 }
 
diff --git a/services/inputflinger/reader/include/InputReader.h b/services/inputflinger/reader/include/InputReader.h
index a00c5af..e44aa0f 100644
--- a/services/inputflinger/reader/include/InputReader.h
+++ b/services/inputflinger/reader/include/InputReader.h
@@ -230,6 +230,8 @@
     uint32_t mConfigurationChangesToRefresh GUARDED_BY(mLock);
     void refreshConfigurationLocked(uint32_t changes) REQUIRES(mLock);
 
+    PointerCaptureRequest mCurrentPointerCaptureRequest GUARDED_BY(mLock);
+
     // state queries
     typedef int32_t (InputDevice::*GetStateFunc)(uint32_t sourceMask, int32_t code);
     int32_t getStateLocked(int32_t deviceId, uint32_t sourceMask, int32_t code,
diff --git a/services/inputflinger/reader/mapper/CursorInputMapper.cpp b/services/inputflinger/reader/mapper/CursorInputMapper.cpp
index 437902a..2ac41b1 100644
--- a/services/inputflinger/reader/mapper/CursorInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/CursorInputMapper.cpp
@@ -154,9 +154,9 @@
         mHWheelScale = 1.0f;
     }
 
-    if ((!changes && config->pointerCapture) ||
+    if ((!changes && config->pointerCaptureRequest.enable) ||
         (changes & InputReaderConfiguration::CHANGE_POINTER_CAPTURE)) {
-        if (config->pointerCapture) {
+        if (config->pointerCaptureRequest.enable) {
             if (mParameters.mode == Parameters::MODE_POINTER) {
                 mParameters.mode = Parameters::MODE_POINTER_RELATIVE;
                 mSource = AINPUT_SOURCE_MOUSE_RELATIVE;
diff --git a/services/inputflinger/reader/mapper/TouchInputMapper.cpp b/services/inputflinger/reader/mapper/TouchInputMapper.cpp
index 962d8d2..8733540 100644
--- a/services/inputflinger/reader/mapper/TouchInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/TouchInputMapper.cpp
@@ -603,7 +603,7 @@
 
     // Determine device mode.
     if (mParameters.deviceType == Parameters::DeviceType::POINTER &&
-        mConfig.pointerGesturesEnabled && !mConfig.pointerCapture) {
+        mConfig.pointerGesturesEnabled && !mConfig.pointerCaptureRequest.enable) {
         mSource = AINPUT_SOURCE_MOUSE;
         mDeviceMode = DeviceMode::POINTER;
         if (hasStylus()) {
@@ -776,11 +776,12 @@
     // preserve the cursor position.
     if (mDeviceMode == DeviceMode::POINTER ||
         (mDeviceMode == DeviceMode::DIRECT && mConfig.showTouches) ||
-        (mParameters.deviceType == Parameters::DeviceType::POINTER && mConfig.pointerCapture)) {
+        (mParameters.deviceType == Parameters::DeviceType::POINTER &&
+         mConfig.pointerCaptureRequest.enable)) {
         if (mPointerController == nullptr) {
             mPointerController = getContext()->getPointerController(getDeviceId());
         }
-        if (mConfig.pointerCapture) {
+        if (mConfig.pointerCaptureRequest.enable) {
             mPointerController->fade(PointerControllerInterface::Transition::IMMEDIATE);
         }
     } else {
diff --git a/services/inputflinger/tests/InputDispatcher_test.cpp b/services/inputflinger/tests/InputDispatcher_test.cpp
index 6c2b158..c973698 100644
--- a/services/inputflinger/tests/InputDispatcher_test.cpp
+++ b/services/inputflinger/tests/InputDispatcher_test.cpp
@@ -239,19 +239,22 @@
         mConfig.keyRepeatDelay = delay;
     }
 
-    void waitForSetPointerCapture(bool enabled) {
+    PointerCaptureRequest assertSetPointerCaptureCalled(bool enabled) {
         std::unique_lock lock(mLock);
         base::ScopedLockAssertion assumeLocked(mLock);
 
         if (!mPointerCaptureChangedCondition.wait_for(lock, 100ms,
                                                       [this, enabled]() REQUIRES(mLock) {
-                                                          return mPointerCaptureEnabled &&
-                                                                  *mPointerCaptureEnabled ==
+                                                          return mPointerCaptureRequest->enable ==
                                                                   enabled;
                                                       })) {
-            FAIL() << "Timed out waiting for setPointerCapture(" << enabled << ") to be called.";
+            ADD_FAILURE() << "Timed out waiting for setPointerCapture(" << enabled
+                          << ") to be called.";
+            return {};
         }
-        mPointerCaptureEnabled.reset();
+        auto request = *mPointerCaptureRequest;
+        mPointerCaptureRequest.reset();
+        return request;
     }
 
     void assertSetPointerCaptureNotCalled() {
@@ -259,11 +262,11 @@
         base::ScopedLockAssertion assumeLocked(mLock);
 
         if (mPointerCaptureChangedCondition.wait_for(lock, 100ms) != std::cv_status::timeout) {
-            FAIL() << "Expected setPointerCapture(enabled) to not be called, but was called. "
+            FAIL() << "Expected setPointerCapture(request) to not be called, but was called. "
                       "enabled = "
-                   << *mPointerCaptureEnabled;
+                   << std::to_string(mPointerCaptureRequest->enable);
         }
-        mPointerCaptureEnabled.reset();
+        mPointerCaptureRequest.reset();
     }
 
     void assertDropTargetEquals(const sp<IBinder>& targetToken) {
@@ -281,7 +284,8 @@
     std::optional<NotifySwitchArgs> mLastNotifySwitch GUARDED_BY(mLock);
 
     std::condition_variable mPointerCaptureChangedCondition;
-    std::optional<bool> mPointerCaptureEnabled GUARDED_BY(mLock);
+
+    std::optional<PointerCaptureRequest> mPointerCaptureRequest GUARDED_BY(mLock);
 
     // ANR handling
     std::queue<std::shared_ptr<InputApplicationHandle>> mAnrApplications GUARDED_BY(mLock);
@@ -398,9 +402,9 @@
         mOnPointerDownToken = newToken;
     }
 
-    void setPointerCapture(bool enabled) override {
+    void setPointerCapture(const PointerCaptureRequest& request) override {
         std::scoped_lock lock(mLock);
-        mPointerCaptureEnabled = {enabled};
+        mPointerCaptureRequest = {request};
         mPointerCaptureChangedCondition.notify_all();
     }
 
@@ -1379,8 +1383,9 @@
     return generateMotionArgs(action, source, displayId, {PointF{100, 200}});
 }
 
-static NotifyPointerCaptureChangedArgs generatePointerCaptureChangedArgs(bool enabled) {
-    return NotifyPointerCaptureChangedArgs(/* id */ 0, systemTime(SYSTEM_TIME_MONOTONIC), enabled);
+static NotifyPointerCaptureChangedArgs generatePointerCaptureChangedArgs(
+        const PointerCaptureRequest& request) {
+    return NotifyPointerCaptureChangedArgs(/* id */ 0, systemTime(SYSTEM_TIME_MONOTONIC), request);
 }
 
 TEST_F(InputDispatcherTest, SetInputWindow_SingleWindowTouch) {
@@ -4591,16 +4596,18 @@
         mWindow->consumeFocusEvent(true);
     }
 
-    void notifyPointerCaptureChanged(bool enabled) {
-        const NotifyPointerCaptureChangedArgs args = generatePointerCaptureChangedArgs(enabled);
+    void notifyPointerCaptureChanged(const PointerCaptureRequest& request) {
+        const NotifyPointerCaptureChangedArgs args = generatePointerCaptureChangedArgs(request);
         mDispatcher->notifyPointerCaptureChanged(&args);
     }
 
-    void requestAndVerifyPointerCapture(const sp<FakeWindowHandle>& window, bool enabled) {
+    PointerCaptureRequest requestAndVerifyPointerCapture(const sp<FakeWindowHandle>& window,
+                                                         bool enabled) {
         mDispatcher->requestPointerCapture(window->getToken(), enabled);
-        mFakePolicy->waitForSetPointerCapture(enabled);
-        notifyPointerCaptureChanged(enabled);
+        auto request = mFakePolicy->assertSetPointerCaptureCalled(enabled);
+        notifyPointerCaptureChanged(request);
         window->consumeCaptureEvent(enabled);
+        return request;
     }
 };
 
@@ -4622,7 +4629,7 @@
 }
 
 TEST_F(InputDispatcherPointerCaptureTests, DisablesPointerCaptureAfterWindowLosesFocus) {
-    requestAndVerifyPointerCapture(mWindow, true);
+    auto request = requestAndVerifyPointerCapture(mWindow, true);
 
     setFocusedWindow(mSecondWindow);
 
@@ -4630,26 +4637,26 @@
     mWindow->consumeCaptureEvent(false);
     mWindow->consumeFocusEvent(false);
     mSecondWindow->consumeFocusEvent(true);
-    mFakePolicy->waitForSetPointerCapture(false);
+    mFakePolicy->assertSetPointerCaptureCalled(false);
 
     // Ensure that additional state changes from InputReader are not sent to the window.
-    notifyPointerCaptureChanged(false);
-    notifyPointerCaptureChanged(true);
-    notifyPointerCaptureChanged(false);
+    notifyPointerCaptureChanged({});
+    notifyPointerCaptureChanged(request);
+    notifyPointerCaptureChanged({});
     mWindow->assertNoEvents();
     mSecondWindow->assertNoEvents();
     mFakePolicy->assertSetPointerCaptureNotCalled();
 }
 
 TEST_F(InputDispatcherPointerCaptureTests, UnexpectedStateChangeDisablesPointerCapture) {
-    requestAndVerifyPointerCapture(mWindow, true);
+    auto request = requestAndVerifyPointerCapture(mWindow, true);
 
     // InputReader unexpectedly disables and enables pointer capture.
-    notifyPointerCaptureChanged(false);
-    notifyPointerCaptureChanged(true);
+    notifyPointerCaptureChanged({});
+    notifyPointerCaptureChanged(request);
 
     // Ensure that Pointer Capture is disabled.
-    mFakePolicy->waitForSetPointerCapture(false);
+    mFakePolicy->assertSetPointerCaptureCalled(false);
     mWindow->consumeCaptureEvent(false);
     mWindow->assertNoEvents();
 }
@@ -4659,24 +4666,43 @@
 
     // The first window loses focus.
     setFocusedWindow(mSecondWindow);
-    mFakePolicy->waitForSetPointerCapture(false);
+    mFakePolicy->assertSetPointerCaptureCalled(false);
     mWindow->consumeCaptureEvent(false);
 
     // Request Pointer Capture from the second window before the notification from InputReader
     // arrives.
     mDispatcher->requestPointerCapture(mSecondWindow->getToken(), true);
-    mFakePolicy->waitForSetPointerCapture(true);
+    auto request = mFakePolicy->assertSetPointerCaptureCalled(true);
 
     // InputReader notifies Pointer Capture was disabled (because of the focus change).
-    notifyPointerCaptureChanged(false);
+    notifyPointerCaptureChanged({});
 
     // InputReader notifies Pointer Capture was enabled (because of mSecondWindow's request).
-    notifyPointerCaptureChanged(true);
+    notifyPointerCaptureChanged(request);
 
     mSecondWindow->consumeFocusEvent(true);
     mSecondWindow->consumeCaptureEvent(true);
 }
 
+TEST_F(InputDispatcherPointerCaptureTests, EnableRequestFollowsSequenceNumbers) {
+    // App repeatedly enables and disables capture.
+    mDispatcher->requestPointerCapture(mWindow->getToken(), true);
+    auto firstRequest = mFakePolicy->assertSetPointerCaptureCalled(true);
+    mDispatcher->requestPointerCapture(mWindow->getToken(), false);
+    mFakePolicy->assertSetPointerCaptureCalled(false);
+    mDispatcher->requestPointerCapture(mWindow->getToken(), true);
+    auto secondRequest = mFakePolicy->assertSetPointerCaptureCalled(true);
+
+    // InputReader notifies that PointerCapture has been enabled for the first request. Since the
+    // first request is now stale, this should do nothing.
+    notifyPointerCaptureChanged(firstRequest);
+    mWindow->assertNoEvents();
+
+    // InputReader notifies that the second request was enabled.
+    notifyPointerCaptureChanged(secondRequest);
+    mWindow->consumeCaptureEvent(true);
+}
+
 class InputDispatcherUntrustedTouchesTest : public InputDispatcherTest {
 protected:
     constexpr static const float MAXIMUM_OBSCURING_OPACITY = 0.8;
diff --git a/services/inputflinger/tests/InputReader_test.cpp b/services/inputflinger/tests/InputReader_test.cpp
index 997cbe8..38dfe40 100644
--- a/services/inputflinger/tests/InputReader_test.cpp
+++ b/services/inputflinger/tests/InputReader_test.cpp
@@ -299,8 +299,9 @@
         transform = t;
     }
 
-    void setPointerCapture(bool enabled) {
-        mConfig.pointerCapture = enabled;
+    PointerCaptureRequest setPointerCapture(bool enabled) {
+        mConfig.pointerCaptureRequest = {enabled, mNextPointerCaptureSequenceNumber++};
+        return mConfig.pointerCaptureRequest;
     }
 
     void setShowTouches(bool enabled) {
@@ -314,6 +315,8 @@
     float getPointerGestureMovementSpeedRatio() { return mConfig.pointerGestureMovementSpeedRatio; }
 
 private:
+    uint32_t mNextPointerCaptureSequenceNumber = 0;
+
     DisplayViewport createDisplayViewport(int32_t displayId, int32_t width, int32_t height,
                                           int32_t orientation, bool isActive,
                                           const std::string& uniqueId,
@@ -1961,24 +1964,24 @@
 TEST_F(InputReaderTest, ChangingPointerCaptureNotifiesInputListener) {
     NotifyPointerCaptureChangedArgs args;
 
-    mFakePolicy->setPointerCapture(true);
+    auto request = mFakePolicy->setPointerCapture(true);
     mReader->requestRefreshConfiguration(InputReaderConfiguration::CHANGE_POINTER_CAPTURE);
     mReader->loopOnce();
     mFakeListener->assertNotifyCaptureWasCalled(&args);
-    ASSERT_TRUE(args.enabled) << "Pointer Capture should be enabled.";
+    ASSERT_TRUE(args.request.enable) << "Pointer Capture should be enabled.";
+    ASSERT_EQ(args.request, request) << "Pointer Capture sequence number should match.";
 
     mFakePolicy->setPointerCapture(false);
     mReader->requestRefreshConfiguration(InputReaderConfiguration::CHANGE_POINTER_CAPTURE);
     mReader->loopOnce();
     mFakeListener->assertNotifyCaptureWasCalled(&args);
-    ASSERT_FALSE(args.enabled) << "Pointer Capture should be disabled.";
+    ASSERT_FALSE(args.request.enable) << "Pointer Capture should be disabled.";
 
-    // Verify that the Pointer Capture state is re-configured correctly when the configuration value
+    // Verify that the Pointer Capture state is not updated when the configuration value
     // does not change.
     mReader->requestRefreshConfiguration(InputReaderConfiguration::CHANGE_POINTER_CAPTURE);
     mReader->loopOnce();
-    mFakeListener->assertNotifyCaptureWasCalled(&args);
-    ASSERT_FALSE(args.enabled) << "Pointer Capture should be disabled.";
+    mFakeListener->assertNotifyCaptureWasNotCalled();
 }
 
 class FakeVibratorInputMapper : public FakeInputMapper {
diff --git a/services/inputflinger/tests/TestInputListener.cpp b/services/inputflinger/tests/TestInputListener.cpp
index fb7de97..6a26c63 100644
--- a/services/inputflinger/tests/TestInputListener.cpp
+++ b/services/inputflinger/tests/TestInputListener.cpp
@@ -100,6 +100,11 @@
                                                           "to have been called."));
 }
 
+void TestInputListener::assertNotifyCaptureWasNotCalled() {
+    ASSERT_NO_FATAL_FAILURE(assertNotCalled<NotifyPointerCaptureChangedArgs>(
+            "notifyPointerCaptureChanged() should not be called."));
+}
+
 template <class NotifyArgsType>
 void TestInputListener::assertCalled(NotifyArgsType* outEventArgs, std::string message) {
     std::unique_lock<std::mutex> lock(mLock);
diff --git a/services/inputflinger/tests/TestInputListener.h b/services/inputflinger/tests/TestInputListener.h
index 0ffcaaa..0a1dc4b 100644
--- a/services/inputflinger/tests/TestInputListener.h
+++ b/services/inputflinger/tests/TestInputListener.h
@@ -55,6 +55,7 @@
     void assertNotifySwitchWasCalled(NotifySwitchArgs* outEventArgs = nullptr);
 
     void assertNotifyCaptureWasCalled(NotifyPointerCaptureChangedArgs* outEventArgs = nullptr);
+    void assertNotifyCaptureWasNotCalled();
     void assertNotifySensorWasCalled(NotifySensorArgs* outEventArgs = nullptr);
     void assertNotifyVibratorStateWasCalled(NotifyVibratorStateArgs* outEventArgs = nullptr);
 
diff --git a/services/sensorservice/SensorInterface.cpp b/services/sensorservice/SensorInterface.cpp
index c285c00..46f00e8 100644
--- a/services/sensorservice/SensorInterface.cpp
+++ b/services/sensorservice/SensorInterface.cpp
@@ -92,31 +92,13 @@
 }
 
 status_t ProximitySensor::activate(void* ident, bool enabled) {
-    bool lastState = mSensorDevice.isSensorActive(mSensor.getHandle());
-
     status_t status = HardwareSensor::activate(ident, enabled);
     if (status != NO_ERROR) {
         return status;
     }
-
-    bool currentState = mSensorDevice.isSensorActive(mSensor.getHandle());
-    if (currentState != lastState) {
-        mSensorService.onProximityActiveLocked(currentState);
-    }
+    mSensorService.checkAndReportProxStateChangeLocked();
     return NO_ERROR;
 }
 
-void ProximitySensor::willDisableAllSensors() {
-    if (mSensorDevice.isSensorActive(mSensor.getHandle())) {
-        mSensorService.onProximityActiveLocked(false);
-    }
-}
-
-void ProximitySensor::didEnableAllSensors() {
-    if (mSensorDevice.isSensorActive(mSensor.getHandle())) {
-        mSensorService.onProximityActiveLocked(true);
-    }
-}
-
 // ---------------------------------------------------------------------------
 }; // namespace android
diff --git a/services/sensorservice/SensorInterface.h b/services/sensorservice/SensorInterface.h
index 4e9f7bf..5704359 100644
--- a/services/sensorservice/SensorInterface.h
+++ b/services/sensorservice/SensorInterface.h
@@ -44,9 +44,6 @@
     virtual const Sensor& getSensor() const = 0;
     virtual bool isVirtual() const = 0;
     virtual void autoDisable(void* /*ident*/, int /*handle*/) = 0;
-
-    virtual void willDisableAllSensors() = 0;
-    virtual void didEnableAllSensors() = 0;
 };
 
 class BaseSensor : public SensorInterface {
@@ -70,8 +67,6 @@
     virtual const Sensor& getSensor() const override { return mSensor; }
     virtual void autoDisable(void* /*ident*/, int /*handle*/) override { }
 
-    virtual void willDisableAllSensors() override { }
-    virtual void didEnableAllSensors() override { }
 protected:
     SensorDevice& mSensorDevice;
     Sensor mSensor;
@@ -115,8 +110,6 @@
 
     status_t activate(void* ident, bool enabled) override;
 
-    void willDisableAllSensors() override;
-    void didEnableAllSensors() override;
 private:
     SensorService& mSensorService;
 };
diff --git a/services/sensorservice/SensorService.cpp b/services/sensorservice/SensorService.cpp
index 726fe8e..bdbae7b 100644
--- a/services/sensorservice/SensorService.cpp
+++ b/services/sensorservice/SensorService.cpp
@@ -103,7 +103,7 @@
 
 SensorService::SensorService()
     : mInitCheck(NO_INIT), mSocketBufferSize(SOCKET_BUFFER_SIZE_NON_BATCHED),
-      mWakeLockAcquired(false), mProximityActiveCount(0) {
+      mWakeLockAcquired(false), mLastReportedProxIsActive(false) {
     mUidPolicy = new UidPolicy(this);
     mSensorPrivacyPolicy = new SensorPrivacyPolicy(this);
 }
@@ -204,9 +204,11 @@
                 }
                 if (useThisSensor) {
                     if (list[i].type == SENSOR_TYPE_PROXIMITY) {
-                        registerSensor(new ProximitySensor(list[i], *this));
+                        SensorInterface* s = new ProximitySensor(list[i], *this);
+                        registerSensor(s);
+                        mProxSensorHandles.push_back(s->getSensor().getHandle());
                     } else {
-                        registerSensor( new HardwareSensor(list[i]) );
+                        registerSensor(new HardwareSensor(list[i]));
                     }
                 }
             }
@@ -331,6 +333,7 @@
             conn->onSensorAccessChanged(hasAccess);
         }
     }
+    checkAndReportProxStateChangeLocked();
 }
 
 bool SensorService::hasSensorAccess(uid_t uid, const String16& opPackageName) {
@@ -680,11 +683,8 @@
         bool hasAccess = hasSensorAccessLocked(conn->getUid(), conn->getOpPackageName());
         conn->onSensorAccessChanged(hasAccess);
     }
-    mSensors.forEachEntry([](const SensorServiceUtil::SensorList::Entry& e) {
-        e.si->willDisableAllSensors();
-        return true;
-    });
     dev.disableAllSensors();
+    checkAndReportProxStateChangeLocked();
     // Clear all pending flush connections for all active sensors. If one of the active
     // connections has called flush() and the underlying sensor has been disabled before a
     // flush complete event is returned, we need to remove the connection from this queue.
@@ -709,14 +709,11 @@
     }
     SensorDevice& dev(SensorDevice::getInstance());
     dev.enableAllSensors();
-    mSensors.forEachEntry([](const SensorServiceUtil::SensorList::Entry& e) {
-        e.si->didEnableAllSensors();
-        return true;
-    });
     for (const sp<SensorDirectConnection>& conn : connLock->getDirectConnections()) {
         bool hasAccess = hasSensorAccessLocked(conn->getUid(), conn->getOpPackageName());
         conn->onSensorAccessChanged(hasAccess);
     }
+    checkAndReportProxStateChangeLocked();
 }
 
 void SensorService::capRates(userid_t userId) {
@@ -1538,10 +1535,7 @@
     if (err == NO_ERROR) {
         mCurrentOperatingMode = NORMAL;
         dev.enableAllSensors();
-        mSensors.forEachEntry([](const SensorServiceUtil::SensorList::Entry& e) {
-            e.si->didEnableAllSensors();
-            return true;
-        });
+        checkAndReportProxStateChangeLocked();
     }
     return err;
 }
@@ -1606,28 +1600,26 @@
     mConnectionHolder.removeDirectConnection(c);
 }
 
-void SensorService::onProximityActiveLocked(bool isActive) {
-    int prevCount = mProximityActiveCount;
-    bool activeStateChanged = false;
-    if (isActive) {
-        mProximityActiveCount++;
-        activeStateChanged = prevCount == 0;
-    } else {
-        mProximityActiveCount--;
-        if (mProximityActiveCount < 0) {
-            ALOGE("Proximity active count is negative (%d)!", mProximityActiveCount);
-        }
-        activeStateChanged = prevCount > 0 && mProximityActiveCount <= 0;
-    }
+void SensorService::checkAndReportProxStateChangeLocked() {
+    if (mProxSensorHandles.empty()) return;
 
-    if (activeStateChanged) {
-        notifyProximityStateLocked(mProximityActiveListeners);
+    SensorDevice& dev(SensorDevice::getInstance());
+    bool isActive = false;
+    for (auto& sensor : mProxSensorHandles) {
+        if (dev.isSensorActive(sensor)) {
+            isActive = true;
+            break;
+        }
+    }
+    if (isActive != mLastReportedProxIsActive) {
+        notifyProximityStateLocked(isActive, mProximityActiveListeners);
+        mLastReportedProxIsActive = isActive;
     }
 }
 
 void SensorService::notifyProximityStateLocked(
+        const bool isActive,
         const std::vector<sp<ProximityActiveListener>>& listeners) {
-    const bool isActive = mProximityActiveCount > 0;
     const uint64_t mySeq = ++curProxCallbackSeq;
     std::thread t([isActive, mySeq, listenersCopy = listeners]() {
         while (completedCallbackSeq.load() != mySeq - 1)
@@ -1655,7 +1647,7 @@
 
     mProximityActiveListeners.push_back(callback);
     std::vector<sp<ProximityActiveListener>> listener(1, callback);
-    notifyProximityStateLocked(listener);
+    notifyProximityStateLocked(mLastReportedProxIsActive, listener);
     return OK;
 }
 
diff --git a/services/sensorservice/SensorService.h b/services/sensorservice/SensorService.h
index def6611..b059e61 100644
--- a/services/sensorservice/SensorService.h
+++ b/services/sensorservice/SensorService.h
@@ -103,8 +103,9 @@
     void cleanupConnection(SensorDirectConnection* c);
 
     // Call with mLock held.
-    void onProximityActiveLocked(bool isActive);
-    void notifyProximityStateLocked(const std::vector<sp<ProximityActiveListener>>& listeners);
+    void checkAndReportProxStateChangeLocked();
+    void notifyProximityStateLocked(const bool isActive,
+                                    const std::vector<sp<ProximityActiveListener>>& listeners);
 
     status_t enable(const sp<SensorEventConnection>& connection, int handle,
                     nsecs_t samplingPeriodNs,  nsecs_t maxBatchReportLatencyNs, int reservedFlags,
@@ -496,8 +497,11 @@
     // Checks if the mic sensor privacy is enabled for the uid
     bool isMicSensorPrivacyEnabledForUid(uid_t uid);
 
-    // Counts how many proximity sensors are currently active.
-    int mProximityActiveCount;
+    // Keeps track of the handles of all proximity sensors in the system.
+    std::vector<int32_t> mProxSensorHandles;
+    // The last proximity sensor active state reported to listeners.
+    bool mLastReportedProxIsActive;
+    // Listeners subscribed to receive updates on the proximity sensor active state.
     std::vector<sp<ProximityActiveListener>> mProximityActiveListeners;
 };
 
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index 71e4791..08c89bf 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -820,11 +820,7 @@
 }
 
 bool Layer::setRelativeLayer(const sp<IBinder>& relativeToHandle, int32_t relativeZ) {
-    sp<Handle> handle = static_cast<Handle*>(relativeToHandle.get());
-    if (handle == nullptr) {
-        return false;
-    }
-    sp<Layer> relative = handle->owner.promote();
+    sp<Layer> relative = fromHandle(relativeToHandle).promote();
     if (relative == nullptr) {
         return false;
     }
@@ -1610,8 +1606,7 @@
 bool Layer::reparent(const sp<IBinder>& newParentHandle) {
     sp<Layer> newParent;
     if (newParentHandle != nullptr) {
-        auto handle = static_cast<Handle*>(newParentHandle.get());
-        newParent = handle->owner.promote();
+        newParent = fromHandle(newParentHandle).promote();
         if (newParent == nullptr) {
             ALOGE("Unable to promote Layer handle");
             return false;
@@ -1986,24 +1981,10 @@
     mDrawingParent = mCurrentParent;
 }
 
-static wp<Layer> extractLayerFromBinder(const wp<IBinder>& weakBinderHandle) {
-    if (weakBinderHandle == nullptr) {
-        return nullptr;
-    }
-    sp<IBinder> binderHandle = weakBinderHandle.promote();
-    if (binderHandle == nullptr) {
-        return nullptr;
-    }
-    sp<Layer::Handle> handle = static_cast<Layer::Handle*>(binderHandle.get());
-    if (handle == nullptr) {
-        return nullptr;
-    }
-    return handle->owner;
-}
 
 void Layer::setInputInfo(const InputWindowInfo& info) {
     mDrawingState.inputInfo = info;
-    mDrawingState.touchableRegionCrop = extractLayerFromBinder(info.touchableRegionCropHandle);
+    mDrawingState.touchableRegionCrop = fromHandle(info.touchableRegionCropHandle.promote());
     mDrawingState.modified = true;
     mFlinger->mInputInfoChanged = true;
     setTransactionFlags(eTransactionNeeded);
@@ -2603,6 +2584,23 @@
     mFlinger->mNumClones++;
 }
 
+const String16 Layer::Handle::kDescriptor = String16("android.Layer.Handle");
+
+wp<Layer> Layer::fromHandle(const sp<IBinder>& handleBinder) {
+    if (handleBinder == nullptr) {
+        return nullptr;
+    }
+
+    BBinder* b = handleBinder->localBinder();
+    if (b == nullptr || b->getInterfaceDescriptor() != Handle::kDescriptor) {
+        return nullptr;
+    }
+
+    // We can safely cast this binder since its local and we verified its interface descriptor.
+    sp<Handle> handle = static_cast<Handle*>(handleBinder.get());
+    return handle->owner;
+}
+
 // ---------------------------------------------------------------------------
 
 std::ostream& operator<<(std::ostream& stream, const Layer::FrameRate& rate) {
diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index 51eacee..b67dbbd 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -291,16 +291,17 @@
     class LayerCleaner {
         sp<SurfaceFlinger> mFlinger;
         sp<Layer> mLayer;
+        BBinder* mHandle;
 
     protected:
         ~LayerCleaner() {
             // destroy client resources
-            mFlinger->onHandleDestroyed(mLayer);
+            mFlinger->onHandleDestroyed(mHandle, mLayer);
         }
 
     public:
-        LayerCleaner(const sp<SurfaceFlinger>& flinger, const sp<Layer>& layer)
-              : mFlinger(flinger), mLayer(layer) {}
+        LayerCleaner(const sp<SurfaceFlinger>& flinger, const sp<Layer>& layer, BBinder* handle)
+              : mFlinger(flinger), mLayer(layer), mHandle(handle) {}
     };
 
     /*
@@ -314,11 +315,15 @@
     class Handle : public BBinder, public LayerCleaner {
     public:
         Handle(const sp<SurfaceFlinger>& flinger, const sp<Layer>& layer)
-              : LayerCleaner(flinger, layer), owner(layer) {}
+              : LayerCleaner(flinger, layer, this), owner(layer) {}
+        const String16& getInterfaceDescriptor() const override { return kDescriptor; }
 
+        static const String16 kDescriptor;
         wp<Layer> owner;
     };
 
+    static wp<Layer> fromHandle(const sp<IBinder>& handle);
+
     explicit Layer(const LayerCreationArgs& args);
     virtual ~Layer();
 
diff --git a/services/surfaceflinger/Scheduler/RefreshRateConfigs.cpp b/services/surfaceflinger/Scheduler/RefreshRateConfigs.cpp
index 0334d70..73b7b63 100644
--- a/services/surfaceflinger/Scheduler/RefreshRateConfigs.cpp
+++ b/services/surfaceflinger/Scheduler/RefreshRateConfigs.cpp
@@ -911,7 +911,10 @@
 int RefreshRateConfigs::getFrameRateDivider(Fps displayFrameRate, Fps layerFrameRate) {
     // This calculation needs to be in sync with the java code
     // in DisplayManagerService.getDisplayInfoForFrameRateOverride
-    constexpr float kThreshold = 0.1f;
+
+    // The threshold must be smaller than 0.001 in order to differentiate
+    // between the fractional pairs (e.g. 59.94 and 60).
+    constexpr float kThreshold = 0.0009f;
     const auto numPeriods = displayFrameRate.getValue() / layerFrameRate.getValue();
     const auto numPeriodsRounded = std::round(numPeriods);
     if (std::abs(numPeriods - numPeriodsRounded) > kThreshold) {
diff --git a/services/surfaceflinger/Scheduler/Scheduler.cpp b/services/surfaceflinger/Scheduler/Scheduler.cpp
index e0b3640..64ad178 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.cpp
+++ b/services/surfaceflinger/Scheduler/Scheduler.cpp
@@ -386,6 +386,13 @@
     }
 
     const auto modeId = *mFeatures.modeId;
+    // If the modeId is not the current mode, this means that a
+    // mode change is in progress. In that case we shouldn't dispatch an event
+    // as it will be dispatched when the current mode changes.
+    if (mRefreshRateConfigs.getCurrentRefreshRate().getModeId() != modeId) {
+        return;
+    }
+
     const auto vsyncPeriod = mRefreshRateConfigs.getRefreshRateFromModeId(modeId).getVsyncPeriod();
 
     // If there is no change from cached mode, there is no need to dispatch an event
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index c7c3e02..9b49b35 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -3605,7 +3605,7 @@
 
         sp<Layer> layer = nullptr;
         if (s.surface) {
-            layer = fromHandleLocked(s.surface).promote();
+            layer = fromHandle(s.surface).promote();
         } else if (s.hasBufferChanges()) {
             ALOGW("Transaction with buffer, but no Layer?");
             continue;
@@ -3772,7 +3772,7 @@
                 setClientStateLocked(frameTimelineInfo, state, desiredPresentTime, isAutoTimestamp,
                                      postTime, permissions, listenerCallbacksWithSurfaces);
         if ((flags & eAnimation) && state.state.surface) {
-            if (const auto layer = fromHandleLocked(state.state.surface).promote(); layer) {
+            if (const auto layer = fromHandle(state.state.surface).promote(); layer) {
                 mScheduler->recordLayerHistory(layer.get(),
                                                isAutoTimestamp ? 0 : desiredPresentTime,
                                                LayerHistory::LayerUpdateType::AnimationTX);
@@ -3927,13 +3927,11 @@
         if (what & layer_state_t::eLayerCreated) {
             layer = handleLayerCreatedLocked(s.surface);
             if (layer) {
-                // put the created layer into mLayersByLocalBinderToken.
-                mLayersByLocalBinderToken.emplace(s.surface->localBinder(), layer);
                 flags |= eTransactionNeeded | eTraversalNeeded;
                 mLayersAdded = true;
             }
         } else {
-            layer = fromHandleLocked(s.surface).promote();
+            layer = fromHandle(s.surface).promote();
         }
     } else {
         // The client may provide us a null handle. Treat it as if the layer was removed.
@@ -4283,7 +4281,7 @@
 
     {
         Mutex::Autolock _l(mStateLock);
-        mirrorFrom = fromHandleLocked(mirrorFromHandle).promote();
+        mirrorFrom = fromHandle(mirrorFromHandle).promote();
         if (!mirrorFrom) {
             return NAME_NOT_FOUND;
         }
@@ -4481,7 +4479,7 @@
     setTransactionFlags(eTransactionNeeded);
 }
 
-void SurfaceFlinger::onHandleDestroyed(sp<Layer>& layer) {
+void SurfaceFlinger::onHandleDestroyed(BBinder* handle, sp<Layer>& layer) {
     Mutex::Autolock lock(mStateLock);
     // If a layer has a parent, we allow it to out-live it's handle
     // with the idea that the parent holds a reference and will eventually
@@ -4492,17 +4490,7 @@
         mCurrentState.layersSortedByZ.remove(layer);
     }
     markLayerPendingRemovalLocked(layer);
-
-    auto it = mLayersByLocalBinderToken.begin();
-    while (it != mLayersByLocalBinderToken.end()) {
-        if (it->second == layer) {
-            mBufferCountTracker.remove(it->first->localBinder());
-            it = mLayersByLocalBinderToken.erase(it);
-        } else {
-            it++;
-        }
-    }
-
+    mBufferCountTracker.remove(handle);
     layer.clear();
 }
 
@@ -6105,7 +6093,7 @@
     {
         Mutex::Autolock lock(mStateLock);
 
-        parent = fromHandleLocked(args.layerHandle).promote();
+        parent = fromHandle(args.layerHandle).promote();
         if (parent == nullptr || parent->isRemovedFromCurrentState()) {
             ALOGE("captureLayers called with an invalid or removed parent");
             return NAME_NOT_FOUND;
@@ -6136,7 +6124,7 @@
         reqSize = ui::Size(crop.width() * args.frameScaleX, crop.height() * args.frameScaleY);
 
         for (const auto& handle : args.excludeHandles) {
-            sp<Layer> excludeLayer = fromHandleLocked(handle).promote();
+            sp<Layer> excludeLayer = fromHandle(handle).promote();
             if (excludeLayer != nullptr) {
                 excludeLayers.emplace(excludeLayer);
             } else {
@@ -6639,24 +6627,8 @@
     }
 }
 
-wp<Layer> SurfaceFlinger::fromHandle(const sp<IBinder>& handle) {
-    Mutex::Autolock _l(mStateLock);
-    return fromHandleLocked(handle);
-}
-
-wp<Layer> SurfaceFlinger::fromHandleLocked(const sp<IBinder>& handle) const {
-    BBinder* b = nullptr;
-    if (handle) {
-        b = handle->localBinder();
-    }
-    if (b == nullptr) {
-        return nullptr;
-    }
-    auto it = mLayersByLocalBinderToken.find(b);
-    if (it != mLayersByLocalBinderToken.end()) {
-        return it->second;
-    }
-    return nullptr;
+wp<Layer> SurfaceFlinger::fromHandle(const sp<IBinder>& handle) const {
+    return Layer::fromHandle(handle);
 }
 
 void SurfaceFlinger::onLayerFirstRef(Layer* layer) {
@@ -6961,7 +6933,7 @@
     sp<Layer> parent;
     bool allowAddRoot = state->addToRoot;
     if (state->initialParent != nullptr) {
-        parent = fromHandleLocked(state->initialParent.promote()).promote();
+        parent = fromHandle(state->initialParent.promote()).promote();
         if (parent == nullptr) {
             ALOGE("Invalid parent %p", state->initialParent.unsafe_get());
             allowAddRoot = false;
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 95c251c..c63225f 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -327,8 +327,7 @@
     // Returns nullptr if the handle does not point to an existing layer.
     // Otherwise, returns a weak reference so that callers off the main-thread
     // won't accidentally hold onto the last strong reference.
-    wp<Layer> fromHandle(const sp<IBinder>& handle);
-    wp<Layer> fromHandleLocked(const sp<IBinder>& handle) const REQUIRES(mStateLock);
+    wp<Layer> fromHandle(const sp<IBinder>& handle) const;
 
     // If set, disables reusing client composition buffers. This can be set by
     // debug.sf.disable_client_composition_cache
@@ -898,7 +897,7 @@
     // called when all clients have released all their references to
     // this layer meaning it is entirely safe to destroy all
     // resources associated to this layer.
-    void onHandleDestroyed(sp<Layer>& layer);
+    void onHandleDestroyed(BBinder* handle, sp<Layer>& layer);
     void markLayerPendingRemovalLocked(const sp<Layer>& layer);
 
     // add a layer to SurfaceFlinger
@@ -1291,8 +1290,6 @@
         std::optional<DisplayIdGenerator<HalVirtualDisplayId>> hal;
     } mVirtualDisplayIdGenerators;
 
-    std::unordered_map<BBinder*, wp<Layer>> mLayersByLocalBinderToken GUARDED_BY(mStateLock);
-
     // don't use a lock for these, we don't care
     int mDebugRegion = 0;
     bool mDebugDisableHWC = false;
diff --git a/services/surfaceflinger/SurfaceInterceptor.cpp b/services/surfaceflinger/SurfaceInterceptor.cpp
index 23ab7c8..837b2e8 100644
--- a/services/surfaceflinger/SurfaceInterceptor.cpp
+++ b/services/surfaceflinger/SurfaceInterceptor.cpp
@@ -183,12 +183,9 @@
     return NO_ERROR;
 }
 
-const sp<const Layer> SurfaceInterceptor::getLayer(const wp<const IBinder>& weakHandle) const {
-    const sp<const IBinder>& handle(weakHandle.promote());
-    const auto layerHandle(static_cast<const Layer::Handle*>(handle.get()));
-    const sp<const Layer> layer(layerHandle->owner.promote());
-    // layer could be a nullptr at this point
-    return layer;
+const sp<const Layer> SurfaceInterceptor::getLayer(const wp<IBinder>& weakHandle) const {
+    sp<IBinder> handle = weakHandle.promote();
+    return Layer::fromHandle(handle).promote();
 }
 
 int32_t SurfaceInterceptor::getLayerId(const sp<const Layer>& layer) const {
@@ -203,12 +200,11 @@
     return strongLayer == nullptr ? -1 : getLayerId(strongLayer);
 }
 
-int32_t SurfaceInterceptor::getLayerIdFromHandle(const sp<const IBinder>& handle) const {
+int32_t SurfaceInterceptor::getLayerIdFromHandle(const sp<IBinder>& handle) const {
     if (handle == nullptr) {
         return -1;
     }
-    const auto layerHandle(static_cast<const Layer::Handle*>(handle.get()));
-    const sp<const Layer> layer(layerHandle->owner.promote());
+    const sp<const Layer> layer = Layer::fromHandle(handle).promote();
     return layer == nullptr ? -1 : getLayerId(layer);
 }
 
diff --git a/services/surfaceflinger/SurfaceInterceptor.h b/services/surfaceflinger/SurfaceInterceptor.h
index 673f9e7..c955596 100644
--- a/services/surfaceflinger/SurfaceInterceptor.h
+++ b/services/surfaceflinger/SurfaceInterceptor.h
@@ -133,10 +133,10 @@
     void addInitialDisplayStateLocked(Increment* increment, const DisplayDeviceState& display);
 
     status_t writeProtoFileLocked();
-    const sp<const Layer> getLayer(const wp<const IBinder>& weakHandle) const;
+    const sp<const Layer> getLayer(const wp<IBinder>& weakHandle) const;
     int32_t getLayerId(const sp<const Layer>& layer) const;
     int32_t getLayerIdFromWeakRef(const wp<const Layer>& layer) const;
-    int32_t getLayerIdFromHandle(const sp<const IBinder>& weakHandle) const;
+    int32_t getLayerIdFromHandle(const sp<IBinder>& weakHandle) const;
 
     Increment* createTraceIncrementLocked();
     void addSurfaceCreationLocked(Increment* increment, const sp<const Layer>& layer);
diff --git a/services/surfaceflinger/tests/unittests/RefreshRateConfigsTest.cpp b/services/surfaceflinger/tests/unittests/RefreshRateConfigsTest.cpp
index 3423bd5..3b2bd81 100644
--- a/services/surfaceflinger/tests/unittests/RefreshRateConfigsTest.cpp
+++ b/services/surfaceflinger/tests/unittests/RefreshRateConfigsTest.cpp
@@ -2123,7 +2123,11 @@
     refreshRateConfigs->setCurrentModeId(HWC_CONFIG_ID_90);
     displayRefreshRate = refreshRateConfigs->getCurrentRefreshRate().getFps();
     EXPECT_EQ(4, RefreshRateConfigs::getFrameRateDivider(displayRefreshRate, Fps(22.5f)));
-    EXPECT_EQ(4, RefreshRateConfigs::getFrameRateDivider(displayRefreshRate, Fps(22.6f)));
+
+    EXPECT_EQ(0, RefreshRateConfigs::getFrameRateDivider(Fps(24.f), Fps(25.f)));
+    EXPECT_EQ(0, RefreshRateConfigs::getFrameRateDivider(Fps(24.f), Fps(23.976f)));
+    EXPECT_EQ(0, RefreshRateConfigs::getFrameRateDivider(Fps(30.f), Fps(29.97f)));
+    EXPECT_EQ(0, RefreshRateConfigs::getFrameRateDivider(Fps(60.f), Fps(59.94f)));
 }
 
 TEST_F(RefreshRateConfigsTest, getFrameRateOverrides_noLayers) {
diff --git a/vulkan/libvulkan/swapchain.cpp b/vulkan/libvulkan/swapchain.cpp
index 2715587..3ed3eba 100644
--- a/vulkan/libvulkan/swapchain.cpp
+++ b/vulkan/libvulkan/swapchain.cpp
@@ -1231,6 +1231,12 @@
         return VK_ERROR_SURFACE_LOST_KHR;
     }
 
+    // In shared mode the num_images must be one regardless of how many
+    // buffers were allocated for the buffer queue.
+    if (swapchain_image_usage & VK_SWAPCHAIN_IMAGE_USAGE_SHARED_BIT_ANDROID) {
+        num_images = 1;
+    }
+
     int32_t legacy_usage = 0;
     if (dispatch.GetSwapchainGrallocUsage2ANDROID) {
         uint64_t consumer_usage, producer_usage;