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 _UAPI_PR_H
20 #define _UAPI_PR_H
21 #include <linux/types.h>
22 enum pr_type {
23   PR_WRITE_EXCLUSIVE = 1,
24   PR_EXCLUSIVE_ACCESS = 2,
25   PR_WRITE_EXCLUSIVE_REG_ONLY = 3,
26   PR_EXCLUSIVE_ACCESS_REG_ONLY = 4,
27   PR_WRITE_EXCLUSIVE_ALL_REGS = 5,
28   PR_EXCLUSIVE_ACCESS_ALL_REGS = 6,
29 };
30 struct pr_reservation {
31   __u64 key;
32   __u32 type;
33   __u32 flags;
34 };
35 struct pr_registration {
36   __u64 old_key;
37   __u64 new_key;
38   __u32 flags;
39   __u32 __pad;
40 };
41 struct pr_preempt {
42   __u64 old_key;
43   __u64 new_key;
44   __u32 type;
45   __u32 flags;
46 };
47 struct pr_clear {
48   __u64 key;
49   __u32 flags;
50   __u32 __pad;
51 };
52 #define PR_FL_IGNORE_KEY (1 << 0)
53 #define IOC_PR_REGISTER _IOW('p', 200, struct pr_registration)
54 #define IOC_PR_RESERVE _IOW('p', 201, struct pr_reservation)
55 #define IOC_PR_RELEASE _IOW('p', 202, struct pr_reservation)
56 #define IOC_PR_PREEMPT _IOW('p', 203, struct pr_preempt)
57 #define IOC_PR_PREEMPT_ABORT _IOW('p', 204, struct pr_preempt)
58 #define IOC_PR_CLEAR _IOW('p', 205, struct pr_clear)
59 #endif
60