--- zzzz-none-000/linux-4.4.271/include/linux/fb.h	2021-06-03 06:22:09.000000000 +0000
+++ hawkeye-5590-750/linux-4.4.271/include/linux/fb.h	2023-04-19 10:22:30.000000000 +0000
@@ -396,6 +396,7 @@
 #define FBINFO_VIRTFB		0x0004 /* FB is System RAM, not device. */
 #define FBINFO_PARTIAL_PAN_OK	0x0040 /* otw use pan only for double-buffering */
 #define FBINFO_READS_FAST	0x0080 /* soft-copy faster than rendering */
+#define FBINFO_DMAFB		0x0100 /* FB memory is DMA */
 
 /* hardware supported ops */
 /*  semantics: when a bit is set, it indicates that the operation is