diff --git a/libgralloc/adreno_utils.h b/libgralloc/adreno_utils.h
index 6cb78106..78f49da4 100644
--- a/libgralloc/adreno_utils.h
+++ b/libgralloc/adreno_utils.h
@@ -36,6 +36,7 @@ typedef enum {
     ADRENO_PIXELFORMAT_NV12          = 103,
     ADRENO_PIXELFORMAT_YUY2          = 107,
     ADRENO_PIXELFORMAT_B4G4R4A4      = 115,
+    ADRENO_PIXELFORMAT_NV12_EXT      = 506,  // NV12 with non-std alignment and offsets
     ADRENO_PIXELFORMAT_R8G8B8        = 508,  // GL_RGB8
     ADRENO_PIXELFORMAT_A1B5G5R5      = 519,  // GL_RGB5_A1
     ADRENO_PIXELFORMAT_R8G8B8X8_SRGB = 520,  // GL_SRGB8
diff --git a/libgralloc/alloc_controller.cpp b/libgralloc/alloc_controller.cpp
index fd98154c..f70ead35 100644
--- a/libgralloc/alloc_controller.cpp
+++ b/libgralloc/alloc_controller.cpp
@@ -308,9 +308,10 @@ ADRENOPIXELFORMAT AdrenoMemInfo::getGpuPixelFormat(int hal_format)
         case HAL_PIXEL_FORMAT_sRGB_A_8888:
             return ADRENO_PIXELFORMAT_R8G8B8A8_SRGB;
         case HAL_PIXEL_FORMAT_NV12_ENCODEABLE:
+            return ADRENO_PIXELFORMAT_NV12;
         case HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS:
         case HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS_UBWC:
-            return ADRENO_PIXELFORMAT_NV12;
+            return ADRENO_PIXELFORMAT_NV12_EXT;
         default:
             ALOGE("%s: No map for format: 0x%x", __FUNCTION__, hal_format);
             break;
diff --git a/libgralloc/gralloc_priv.h b/libgralloc/gralloc_priv.h
index e9b9d9d4..f973b76c 100755
--- a/libgralloc/gralloc_priv.h
+++ b/libgralloc/gralloc_priv.h
@@ -33,44 +33,42 @@
 #define ROUND_UP_PAGESIZE(x) ( (((unsigned long)(x)) + PAGE_SIZE-1)  & \
                                (~(PAGE_SIZE-1)) )
 
-enum {
-    /* gralloc usage bits indicating the type
-     * of allocation that should be used */
+/* Gralloc usage bits indicating the type of allocation that should be used */
+/* SYSTEM heap comes from kernel vmalloc, can never be uncached,
+ * is not secured */
+#define GRALLOC_USAGE_PRIVATE_SYSTEM_HEAP     GRALLOC_USAGE_PRIVATE_0
 
-    /* SYSTEM heap comes from kernel vmalloc,
-     * can never be uncached, is not secured*/
-    GRALLOC_USAGE_PRIVATE_SYSTEM_HEAP     =       GRALLOC_USAGE_PRIVATE_0,
+/* Non linear, Universal Bandwidth Compression */
+#define GRALLOC_USAGE_PRIVATE_ALLOC_UBWC      GRALLOC_USAGE_PRIVATE_1
 
-    /* Non linear, Universal Bandwidth Compression */
-    GRALLOC_USAGE_PRIVATE_ALLOC_UBWC      =       GRALLOC_USAGE_PRIVATE_1,
+/* IOMMU heap comes from manually allocated pages, can be cached/uncached,
+ * is not secured */
+#define GRALLOC_USAGE_PRIVATE_IOMMU_HEAP      GRALLOC_USAGE_PRIVATE_2
 
-    /* IOMMU heap comes from manually allocated pages,
-     * can be cached/uncached, is not secured */
-    GRALLOC_USAGE_PRIVATE_IOMMU_HEAP      =       GRALLOC_USAGE_PRIVATE_2,
-    /* MM heap is a carveout heap for video, can be secured*/
-    GRALLOC_USAGE_PRIVATE_MM_HEAP         =       GRALLOC_USAGE_PRIVATE_3,
-    /* ADSP heap is a carveout heap, is not secured*/
-    GRALLOC_USAGE_PRIVATE_ADSP_HEAP       =       0x01000000,
+/* MM heap is a carveout heap for video, can be secured */
+#define GRALLOC_USAGE_PRIVATE_MM_HEAP         GRALLOC_USAGE_PRIVATE_3
 
-    /* Set this for allocating uncached memory (using O_DSYNC)
-     * cannot be used with noncontiguous heaps */
-    GRALLOC_USAGE_PRIVATE_UNCACHED        =       0x02000000,
+/* ADSP heap is a carveout heap, is not secured */
+#define GRALLOC_USAGE_PRIVATE_ADSP_HEAP       0x01000000
 
-    /* Buffer content should be displayed on an primary display only */
-    GRALLOC_USAGE_PRIVATE_INTERNAL_ONLY   =       0x04000000,
+/* Set this for allocating uncached memory (using O_DSYNC),
+ * cannot be used with noncontiguous heaps */
+#define GRALLOC_USAGE_PRIVATE_UNCACHED        0x02000000
 
-    /* Buffer content should be displayed on an external display only */
-    GRALLOC_USAGE_PRIVATE_EXTERNAL_ONLY   =       0x08000000,
+/* Buffer content should be displayed on an primary display only */
+#define GRALLOC_USAGE_PRIVATE_INTERNAL_ONLY   0x04000000
 
-    /* This flag is set for WFD usecase */
-    GRALLOC_USAGE_PRIVATE_WFD             =       0x00200000,
+/* Buffer content should be displayed on an external display only */
+#define GRALLOC_USAGE_PRIVATE_EXTERNAL_ONLY   0x08000000
 
-    /* CAMERA heap is a carveout heap for camera, is not secured*/
-    GRALLOC_USAGE_PRIVATE_CAMERA_HEAP     =       0x00400000,
+/* This flag is set for WFD usecase */
+#define GRALLOC_USAGE_PRIVATE_WFD             0x00200000
 
-    /* This flag is used for SECURE display usecase */
-    GRALLOC_USAGE_PRIVATE_SECURE_DISPLAY  =       0x00800000,
-};
+/* CAMERA heap is a carveout heap for camera, is not secured */
+#define GRALLOC_USAGE_PRIVATE_CAMERA_HEAP     0x00400000
+
+/* This flag is used for SECURE display usecase */
+#define GRALLOC_USAGE_PRIVATE_SECURE_DISPLAY  0x00800000
 
 /* define Gralloc perform */
 #define GRALLOC_MODULE_PERFORM_CREATE_HANDLE_FROM_BUFFER 1
@@ -84,6 +82,7 @@ enum {
 #define GRALLOC_MODULE_PERFORM_GET_COLOR_SPACE_FROM_HANDLE 6
 #define GRALLOC_MODULE_PERFORM_GET_YUV_PLANE_INFO 7
 #define GRALLOC_MODULE_PERFORM_GET_MAP_SECURE_BUFFER_INFO 8
+#define GRALLOC_MODULE_PERFORM_GET_UBWC_FLAG 9
 
 #define GRALLOC_HEAP_MASK   (GRALLOC_USAGE_PRIVATE_SYSTEM_HEAP    |\
                              GRALLOC_USAGE_PRIVATE_IOMMU_HEAP     |\
diff --git a/libgralloc/mapper.cpp b/libgralloc/mapper.cpp
index 44f4fb2b..53823002 100644
--- a/libgralloc/mapper.cpp
+++ b/libgralloc/mapper.cpp
@@ -447,6 +447,17 @@ int gralloc_perform(struct gralloc_module_t const* module,
                 }
             } break;
 
+        case GRALLOC_MODULE_PERFORM_GET_UBWC_FLAG:
+            {
+                private_handle_t* hnd =  va_arg(args, private_handle_t*);
+                int *flag = va_arg(args, int *);
+                if (private_handle_t::validate(hnd)) {
+                    return res;
+                }
+                *flag = hnd->flags & private_handle_t::PRIV_FLAGS_UBWC_ALIGNED;
+                res = 0;
+            } break;
+
         default:
             break;
     }