From 6ca82f93c198a20e9850a1699006fe9fe6d0fb87 Mon Sep 17 00:00:00 2001
From: Paulo Warren <pwarren@chromium.org>
Date: Fri, 13 Dec 2019 16:15:53 -0500
Subject: [PATCH] Add udmabuf.h header.

Backport udmabuf.h header so userspace applications can use udmabuf
definitions.
---
 include/uapi/linux/udmabuf.h | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 include/uapi/linux/udmabuf.h

diff --git a/include/uapi/linux/udmabuf.h b/include/uapi/linux/udmabuf.h
new file mode 100644
index 0000000..46b6532
--- /dev/null
+++ b/include/uapi/linux/udmabuf.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_LINUX_UDMABUF_H
+#define _UAPI_LINUX_UDMABUF_H
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+
+#define UDMABUF_FLAGS_CLOEXEC	0x01
+
+struct udmabuf_create {
+	__u32 memfd;
+	__u32 flags;
+	__u64 offset;
+	__u64 size;
+};
+
+struct udmabuf_create_item {
+	__u32 memfd;
+	__u32 __pad;
+	__u64 offset;
+	__u64 size;
+};
+
+struct udmabuf_create_list {
+	__u32 flags;
+	__u32 count;
+	struct udmabuf_create_item list[];
+};
+
+#define UDMABUF_CREATE       _IOW('u', 0x42, struct udmabuf_create)
+#define UDMABUF_CREATE_LIST  _IOW('u', 0x43, struct udmabuf_create_list)
+
+#endif /* _UAPI_LINUX_UDMABUF_H */
-- 
2.21.0