diff --git a/gralloc/QtiGralloc.h b/gralloc/QtiGralloc.h
index d25b264e..f43da3f1 100644
--- a/gralloc/QtiGralloc.h
+++ b/gralloc/QtiGralloc.h
@@ -29,7 +29,7 @@
  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  * Changes from Qualcomm Innovation Center are provided under the following license:
- * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved.
  * SPDX-License-Identifier: BSD-3-Clause-Clear
  */
 
@@ -144,6 +144,8 @@ static const MetadataType MetadataType_MemHandle = {VENDOR_QTI, QTI_MEM_HANDLE};
 static const MetadataType MetadataType_TimedRendering = {VENDOR_QTI, QTI_TIMED_RENDERING};
 static const MetadataType MetadataType_CustomContentMetadata = {VENDOR_QTI,
                                                                 QTI_CUSTOM_CONTENT_METADATA};
+static const MetadataType MetadataType_BufferDequeueDuration = {VENDOR_QTI,
+                                                                QTI_BUFFER_DEQUEUE_DURATION};
 
 // 0 is also used as invalid value in standard metadata
 static const MetadataType MetadataType_Invalid = {VENDOR_QTI, 0};
diff --git a/gralloc/QtiGrallocMetadata.h b/gralloc/QtiGrallocMetadata.h
index 6d139ddb..61a42210 100644
--- a/gralloc/QtiGrallocMetadata.h
+++ b/gralloc/QtiGrallocMetadata.h
@@ -29,7 +29,7 @@
  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  * Changes from Qualcomm Innovation Center are provided under the following license:
- * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved.
  * SPDX-License-Identifier: BSD-3-Clause-Clear
  */
 
@@ -81,6 +81,7 @@
 #define QTI_EARLYNOTIFY_LINECOUNT 10031
 // Heap Name
 #define QTI_HEAP_NAME 10032
+#define QTI_BUFFER_DEQUEUE_DURATION 10033
 // Used to indicate to framework that internal definitions are used instead
 #define COMPRESSION_QTI_UBWC 20001
 #define INTERLACED_QTI 20002
diff --git a/gralloc/QtiGrallocPriv.h b/gralloc/QtiGrallocPriv.h
index 41862e4e..b20be66b 100644
--- a/gralloc/QtiGrallocPriv.h
+++ b/gralloc/QtiGrallocPriv.h
@@ -30,41 +30,11 @@
  */
 
 /*
-* Changes from Qualcomm Innovation Center are provided under the following license:
-*
-* Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
-*
-* Redistribution and use in source and binary forms, with or without
-* modification, are permitted (subject to the limitations in the
-* disclaimer below) provided that the following conditions are met:
-*
-*    * Redistributions of source code must retain the above copyright
-*      notice, this list of conditions and the following disclaimer.
-*
-*    * Redistributions in binary form must reproduce the above
-*      copyright notice, this list of conditions and the following
-*      disclaimer in the documentation and/or other materials provided
-*      with the distribution.
-*
-*    * Neither the name of Qualcomm Innovation Center, Inc. nor the
-*      names of its contributors may be used to endorse or promote
-*      products derived from this software without specific prior
-*      written permission.
-*
-* NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE
-* GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT
-* HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
-* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
-* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
-* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
-* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
-* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
-* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
-* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
+ * Changes from Qualcomm Innovation Center are provided under the following license:
+ *
+ * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved.
+ * SPDX-License-Identifier: BSD-3-Clause-Clear
+ */
 
 #ifndef __QTIGRALLOCPRIV_H__
 #define __QTIGRALLOCPRIV_H__
@@ -147,6 +117,8 @@ struct MetaData_t {
   struct VideoTranscodeStatsMetadata video_transcode_stats;
   int32_t videoEarlyNotifyLineCount;
   char heapName[MAX_NAME_LEN];
+  /* Last buffer dequeue duration used by SmoMo to detect blocking */
+  int64_t bufferDequeueDuration;
 };
 
 namespace qtigralloc {