1/****************************************************************************
2 ****************************************************************************
3 ***
4 ***   This header was automatically generated from a Linux kernel header
5 ***   of the same name, to make information necessary for userspace to
6 ***   call into the kernel available to libc.  It contains only constants,
7 ***   structures, and macros generated from the original header, and thus,
8 ***   contains no copyrightable information.
9 ***
10 ***   To edit the content of this header, modify the corresponding
11 ***   source file (e.g. under external/kernel-headers/original/) then
12 ***   run bionic/libc/kernel/tools/update_all.py
13 ***
14 ***   Any manual change here will be lost the next time this script will
15 ***   be run. You've been warned!
16 ***
17 ****************************************************************************
18 ****************************************************************************/
19#ifndef __LINUX_PUBLIC_GNTDEV_H__
20#define __LINUX_PUBLIC_GNTDEV_H__
21#include <linux/types.h>
22struct ioctl_gntdev_grant_ref {
23  __u32 domid;
24  __u32 ref;
25};
26#define IOCTL_GNTDEV_MAP_GRANT_REF _IOC(_IOC_NONE, 'G', 0, sizeof(struct ioctl_gntdev_map_grant_ref))
27struct ioctl_gntdev_map_grant_ref {
28  __u32 count;
29  __u32 pad;
30  __u64 index;
31  struct ioctl_gntdev_grant_ref refs[1];
32};
33#define IOCTL_GNTDEV_UNMAP_GRANT_REF _IOC(_IOC_NONE, 'G', 1, sizeof(struct ioctl_gntdev_unmap_grant_ref))
34struct ioctl_gntdev_unmap_grant_ref {
35  __u64 index;
36  __u32 count;
37  __u32 pad;
38};
39#define IOCTL_GNTDEV_GET_OFFSET_FOR_VADDR _IOC(_IOC_NONE, 'G', 2, sizeof(struct ioctl_gntdev_get_offset_for_vaddr))
40struct ioctl_gntdev_get_offset_for_vaddr {
41  __u64 vaddr;
42  __u64 offset;
43  __u32 count;
44  __u32 pad;
45};
46#define IOCTL_GNTDEV_SET_MAX_GRANTS _IOC(_IOC_NONE, 'G', 3, sizeof(struct ioctl_gntdev_set_max_grants))
47struct ioctl_gntdev_set_max_grants {
48  __u32 count;
49};
50#define IOCTL_GNTDEV_SET_UNMAP_NOTIFY _IOC(_IOC_NONE, 'G', 7, sizeof(struct ioctl_gntdev_unmap_notify))
51struct ioctl_gntdev_unmap_notify {
52  __u64 index;
53  __u32 action;
54  __u32 event_channel_port;
55};
56struct gntdev_grant_copy_segment {
57  union {
58    void __user * virt;
59    struct {
60      grant_ref_t ref;
61      __u16 offset;
62      domid_t domid;
63    } foreign;
64  } source, dest;
65  __u16 len;
66  __u16 flags;
67  __s16 status;
68};
69#define IOCTL_GNTDEV_GRANT_COPY _IOC(_IOC_NONE, 'G', 8, sizeof(struct ioctl_gntdev_grant_copy))
70struct ioctl_gntdev_grant_copy {
71  unsigned int count;
72  struct gntdev_grant_copy_segment __user * segments;
73};
74#define UNMAP_NOTIFY_CLEAR_BYTE 0x1
75#define UNMAP_NOTIFY_SEND_EVENT 0x2
76#endif
77