diff --git a/libs/gui/IProducerListener.cpp b/libs/gui/IProducerListener.cpp
index 0683087211..846eeaf8ab 100644
--- a/libs/gui/IProducerListener.cpp
+++ b/libs/gui/IProducerListener.cpp
@@ -25,6 +25,8 @@ enum {
     ON_BUFFER_RELEASED = IBinder::FIRST_CALL_TRANSACTION,
     NEEDS_RELEASE_NOTIFY,
     ON_BUFFERS_DISCARDED,
+    // MIUI ADD
+    ON_BUFFER_DETACHED,
 };
 
 class BpProducerListener : public BpInterface<IProducerListener>
@@ -64,6 +66,15 @@ class BpProducerListener : public BpInterface<IProducerListener>
         data.writeInt32Vector(discardedSlots);
         remote()->transact(ON_BUFFERS_DISCARDED, data, &reply, IBinder::FLAG_ONEWAY);
     }
+
+    // MIUI ADD: START
+    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);
+    }
+    // MIUI ADD: END
 };
 
 // Out-of-line virtual method definition to trigger vtable emission in this
@@ -88,6 +99,12 @@ class HpProducerListener : public HpInterface<
     virtual void onBuffersDiscarded(const std::vector<int32_t>& discardedSlots) override {
         return mBase->onBuffersDiscarded(discardedSlots);
     }
+
+    // MIUI ADD: START
+    virtual void onBufferDetached(int slot) {
+        mBase->onBufferDetached(slot);
+    }
+    // MIUI ADD: END
 };
 
 IMPLEMENT_HYBRID_META_INTERFACE(ProducerListener,
@@ -115,6 +132,14 @@ status_t BnProducerListener::onTransact(uint32_t code, const Parcel& data,
             onBuffersDiscarded(discardedSlots);
             return NO_ERROR;
         }
+        // MIUI ADD: START
+        case ON_BUFFER_DETACHED:
+            int slot = 0;
+            CHECK_INTERFACE(IProducerListener, data, reply);
+            data.readInt32(&slot);
+            onBufferDetached(slot);
+            return NO_ERROR;
+        // MIUI ADD: END
     }
     return BBinder::onTransact(code, data, reply, flags);
 }
@@ -128,4 +153,9 @@ bool BnProducerListener::needsReleaseNotify() {
 void BnProducerListener::onBuffersDiscarded(const std::vector<int32_t>& /*discardedSlots*/) {
 }
 
+// MIUI ADD: START
+void BnProducerListener::onBufferDetached(int slot) {
+    ALOGE("BnProducerListener::onBufferDetached slot: %d",slot);
+}
+// MIUI ADD: END
 } // namespace android
diff --git a/libs/gui/Surface.cpp b/libs/gui/Surface.cpp
index 4c8079265a..e2bbfb5d46 100644
--- a/libs/gui/Surface.cpp
+++ b/libs/gui/Surface.cpp
@@ -1958,6 +1958,19 @@ int Surface::disconnect(int api, IGraphicBufferProducer::DisconnectMode mode) {
     return err;
 }
 
+// MIUI ADD: START
+void Surface::releaseSlot(int slot) {
+    Mutex::Autolock lock(mMutex);
+    if(mDequeuedSlots.count(slot) <= 0) {
+        ALOGV("Surface releaseSlot %d",slot);
+        if (mReportRemovedBuffers && (mSlots[slot].buffer != nullptr)) {
+            mRemovedBuffers.push_back(mSlots[slot].buffer);
+        }
+        mSlots[slot].buffer = nullptr;
+    }
+}
+// MIUI ADD: END
+
 int Surface::detachNextBuffer(sp<GraphicBuffer>* outBuffer,
         sp<Fence>* outFence) {
     ATRACE_CALL();
diff --git a/libs/gui/bufferqueue/1.0/WProducerListener.cpp b/libs/gui/bufferqueue/1.0/WProducerListener.cpp
index 56b64b9ddd..c578a4fe54 100644
--- a/libs/gui/bufferqueue/1.0/WProducerListener.cpp
+++ b/libs/gui/bufferqueue/1.0/WProducerListener.cpp
@@ -49,4 +49,9 @@ bool LWProducerListener::needsReleaseNotify() {
 void LWProducerListener::onBuffersDiscarded(const std::vector<int32_t>& /*slots*/) {
 }
 
+// MIUI ADD: START
+void LWProducerListener::onBufferDetached(int /*slot*/) {
+}
+// MIUI ADD: END
+
 }  // namespace android
diff --git a/libs/gui/bufferqueue/2.0/H2BProducerListener.cpp b/libs/gui/bufferqueue/2.0/H2BProducerListener.cpp
index b2bd1172d6..e4e7df44e6 100644
--- a/libs/gui/bufferqueue/2.0/H2BProducerListener.cpp
+++ b/libs/gui/bufferqueue/2.0/H2BProducerListener.cpp
@@ -55,6 +55,11 @@ bool H2BProducerListener::needsReleaseNotify() {
 void H2BProducerListener::onBuffersDiscarded(const std::vector<int32_t>& /*slots*/) {
 }
 
+// MIUI ADD: START
+void H2BProducerListener::onBufferDetached(int /*slot*/) {
+}
+// MIUI ADD: END
+
 }  // namespace utils
 }  // namespace V2_0
 }  // namespace bufferqueue
diff --git a/libs/gui/include/gui/IProducerListener.h b/libs/gui/include/gui/IProducerListener.h
index f7ffbb99ea..44b44517b3 100644
--- a/libs/gui/include/gui/IProducerListener.h
+++ b/libs/gui/include/gui/IProducerListener.h
@@ -49,6 +49,9 @@ class ProducerListener : public virtual RefBase
     // onBuffersFreed is called from IGraphicBufferConsumer::discardFreeBuffers
     // to notify the producer that certain free buffers are discarded by the consumer.
     virtual void onBuffersDiscarded(const std::vector<int32_t>& slots) = 0; // Asynchronous
+
+    // MIUI ADD
+    virtual void onBufferDetached(int slot) = 0;
 };
 
 #ifndef NO_BINDER
@@ -72,6 +75,8 @@ class BnProducerListener : public BnInterface<IProducerListener>
             Parcel* reply, uint32_t flags = 0);
     virtual bool needsReleaseNotify();
     virtual void onBuffersDiscarded(const std::vector<int32_t>& slots);
+    // MIUI ADD
+    virtual void onBufferDetached(int slot);
 };
 
 #else
@@ -85,6 +90,8 @@ class StubProducerListener : public BnProducerListener {
     virtual ~StubProducerListener();
     virtual void onBufferReleased() {}
     virtual bool needsReleaseNotify() { return false; }
+    // MIUI ADD
+    virtual void onBufferDetached(int /**slot**/) {}
 };
 
 } // namespace android
diff --git a/libs/gui/include/gui/Surface.h b/libs/gui/include/gui/Surface.h
index 8d4e15bb40..2f4c6effde 100644
--- a/libs/gui/include/gui/Surface.h
+++ b/libs/gui/include/gui/Surface.h
@@ -54,6 +54,11 @@ class SurfaceListener : public virtual RefBase
     virtual bool needsReleaseNotify() = 0;
 
     virtual void onBuffersDiscarded(const std::vector<sp<GraphicBuffer>>& buffers) = 0;
+    // MIUI ADD: START
+    virtual void onBufferDetached(int /**slot**/) {
+        //default do nothing
+    }
+    // MIUI ADD: END
 };
 
 /*
@@ -333,6 +338,8 @@ class Surface
             bool reportBufferRemoval);
     virtual int detachNextBuffer(sp<GraphicBuffer>* outBuffer,
             sp<Fence>* outFence);
+    // MIUI ADD
+    virtual void releaseSlot(int slot);
     virtual int attachBuffer(ANativeWindowBuffer*);
 
     virtual int connect(
@@ -388,6 +395,12 @@ class Surface
         }
 
         virtual void onBuffersDiscarded(const std::vector<int32_t>& slots);
+
+        // MIUI ADD: START
+        virtual void onBufferDetached(int slot) {
+            mSurfaceListener->onBufferDetached(slot);
+        }
+        // MIUI ADD: END
     private:
         wp<Surface> mParent;
         sp<SurfaceListener> mSurfaceListener;
diff --git a/libs/gui/include/gui/bufferqueue/1.0/WProducerListener.h b/libs/gui/include/gui/bufferqueue/1.0/WProducerListener.h
index 197db26444..1f18b4b3be 100644
--- a/libs/gui/include/gui/bufferqueue/1.0/WProducerListener.h
+++ b/libs/gui/include/gui/bufferqueue/1.0/WProducerListener.h
@@ -55,6 +55,8 @@ class LWProducerListener : public BnProducerListener {
     void onBufferReleased() override;
     bool needsReleaseNotify() override;
     void onBuffersDiscarded(const std::vector<int32_t>& slots) override;
+    // MIUI ADD
+    void onBufferDetached(int slot) override;
 };
 
 }  // namespace android
diff --git a/libs/gui/include/gui/bufferqueue/2.0/H2BProducerListener.h b/libs/gui/include/gui/bufferqueue/2.0/H2BProducerListener.h
index 92650b701b..47360f69b4 100644
--- a/libs/gui/include/gui/bufferqueue/2.0/H2BProducerListener.h
+++ b/libs/gui/include/gui/bufferqueue/2.0/H2BProducerListener.h
@@ -47,6 +47,8 @@ class H2BProducerListener
     virtual void onBufferReleased() override;
     virtual bool needsReleaseNotify() override;
     virtual void onBuffersDiscarded(const std::vector<int32_t>& slots) override;
+    // MIUI ADD
+    virtual void onBufferDetached(int slot) override;
 };
 
 }  // namespace utils