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6f52b16c | 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
bbd3e064 CH |
2 | #ifndef _UAPI_PR_H |
3 | #define _UAPI_PR_H | |
4 | ||
9078b4ee ND |
5 | #include <linux/types.h> |
6 | ||
bbd3e064 CH |
7 | enum pr_type { |
8 | PR_WRITE_EXCLUSIVE = 1, | |
9 | PR_EXCLUSIVE_ACCESS = 2, | |
10 | PR_WRITE_EXCLUSIVE_REG_ONLY = 3, | |
11 | PR_EXCLUSIVE_ACCESS_REG_ONLY = 4, | |
12 | PR_WRITE_EXCLUSIVE_ALL_REGS = 5, | |
13 | PR_EXCLUSIVE_ACCESS_ALL_REGS = 6, | |
14 | }; | |
15 | ||
16 | struct pr_reservation { | |
17 | __u64 key; | |
18 | __u32 type; | |
19 | __u32 flags; | |
20 | }; | |
21 | ||
22 | struct pr_registration { | |
23 | __u64 old_key; | |
24 | __u64 new_key; | |
25 | __u32 flags; | |
26 | __u32 __pad; | |
27 | }; | |
28 | ||
29 | struct pr_preempt { | |
30 | __u64 old_key; | |
31 | __u64 new_key; | |
32 | __u32 type; | |
33 | __u32 flags; | |
34 | }; | |
35 | ||
36 | struct pr_clear { | |
37 | __u64 key; | |
38 | __u32 flags; | |
39 | __u32 __pad; | |
40 | }; | |
41 | ||
42 | #define PR_FL_IGNORE_KEY (1 << 0) /* ignore existing key */ | |
43 | ||
44 | #define IOC_PR_REGISTER _IOW('p', 200, struct pr_registration) | |
45 | #define IOC_PR_RESERVE _IOW('p', 201, struct pr_reservation) | |
46 | #define IOC_PR_RELEASE _IOW('p', 202, struct pr_reservation) | |
47 | #define IOC_PR_PREEMPT _IOW('p', 203, struct pr_preempt) | |
48 | #define IOC_PR_PREEMPT_ABORT _IOW('p', 204, struct pr_preempt) | |
49 | #define IOC_PR_CLEAR _IOW('p', 205, struct pr_clear) | |
50 | ||
51 | #endif /* _UAPI_PR_H */ |