--- c7903ed5b40973d3ae6d1bbdd0643ac532d90665
+++ aa0b013c156b005c6a6e9233eea2bc6d4844ff03
@@ -67,6 +67,7 @@
 #define HW3D_REVOKE_GPU		_IOW(PMEM_IOCTL_MAGIC, 8, unsigned int)
 #define HW3D_GRANT_GPU		_IOW(PMEM_IOCTL_MAGIC, 9, unsigned int)
 
+#define PMEM_CACHE_FLUSH	_IOW(PMEM_IOCTL_MAGIC, 8, unsigned int)
 #define PMEM_CLEAN_INV_CACHES	_IOW(PMEM_IOCTL_MAGIC, 11, unsigned int)
 #define PMEM_CLEAN_CACHES	_IOW(PMEM_IOCTL_MAGIC, 12, unsigned int)
 #define PMEM_INV_CACHES		_IOW(PMEM_IOCTL_MAGIC, 13, unsigned int)