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1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2#ifndef _UAPI_LINUX_SCHED_H
3#define _UAPI_LINUX_SCHED_H
4
5#include <linux/types.h>
6
7/*
8 * cloning flags:
9 */
10#define CSIGNAL 0x000000ff /* signal mask to be sent at exit */
11#define CLONE_VM 0x00000100 /* set if VM shared between processes */
12#define CLONE_FS 0x00000200 /* set if fs info shared between processes */
13#define CLONE_FILES 0x00000400 /* set if open files shared between processes */
14#define CLONE_SIGHAND 0x00000800 /* set if signal handlers and blocked signals shared */
15#define CLONE_PIDFD 0x00001000 /* set if a pidfd should be placed in parent */
16#define CLONE_PTRACE 0x00002000 /* set if we want to let tracing continue on the child too */
17#define CLONE_VFORK 0x00004000 /* set if the parent wants the child to wake it up on mm_release */
18#define CLONE_PARENT 0x00008000 /* set if we want to have the same parent as the cloner */
19#define CLONE_THREAD 0x00010000 /* Same thread group? */
20#define CLONE_NEWNS 0x00020000 /* New mount namespace group */
21#define CLONE_SYSVSEM 0x00040000 /* share system V SEM_UNDO semantics */
22#define CLONE_SETTLS 0x00080000 /* create a new TLS for the child */
23#define CLONE_PARENT_SETTID 0x00100000 /* set the TID in the parent */
24#define CLONE_CHILD_CLEARTID 0x00200000 /* clear the TID in the child */
25#define CLONE_DETACHED 0x00400000 /* Unused, ignored */
26#define CLONE_UNTRACED 0x00800000 /* set if the tracing process can't force CLONE_PTRACE on this clone */
27#define CLONE_CHILD_SETTID 0x01000000 /* set the TID in the child */
28#define CLONE_NEWCGROUP 0x02000000 /* New cgroup namespace */
29#define CLONE_NEWUTS 0x04000000 /* New utsname namespace */
30#define CLONE_NEWIPC 0x08000000 /* New ipc namespace */
31#define CLONE_NEWUSER 0x10000000 /* New user namespace */
32#define CLONE_NEWPID 0x20000000 /* New pid namespace */
33#define CLONE_NEWNET 0x40000000 /* New network namespace */
34#define CLONE_IO 0x80000000 /* Clone io context */
35
36/*
37 * Arguments for the clone3 syscall
38 */
39struct clone_args {
40 __aligned_u64 flags;
41 __aligned_u64 pidfd;
42 __aligned_u64 child_tid;
43 __aligned_u64 parent_tid;
44 __aligned_u64 exit_signal;
45 __aligned_u64 stack;
46 __aligned_u64 stack_size;
47 __aligned_u64 tls;
48};
49
50/*
51 * Scheduling policies
52 */
53#define SCHED_NORMAL 0
54#define SCHED_FIFO 1
55#define SCHED_RR 2
56#define SCHED_BATCH 3
57/* SCHED_ISO: reserved but not implemented yet */
58#define SCHED_IDLE 5
59#define SCHED_DEADLINE 6
60
61/* Can be ORed in to make sure the process is reverted back to SCHED_NORMAL on fork */
62#define SCHED_RESET_ON_FORK 0x40000000
63
64/*
65 * For the sched_{set,get}attr() calls
66 */
67#define SCHED_FLAG_RESET_ON_FORK 0x01
68#define SCHED_FLAG_RECLAIM 0x02
69#define SCHED_FLAG_DL_OVERRUN 0x04
70#define SCHED_FLAG_KEEP_POLICY 0x08
71#define SCHED_FLAG_KEEP_PARAMS 0x10
72#define SCHED_FLAG_UTIL_CLAMP_MIN 0x20
73#define SCHED_FLAG_UTIL_CLAMP_MAX 0x40
74
75#define SCHED_FLAG_KEEP_ALL (SCHED_FLAG_KEEP_POLICY | \
76 SCHED_FLAG_KEEP_PARAMS)
77
78#define SCHED_FLAG_UTIL_CLAMP (SCHED_FLAG_UTIL_CLAMP_MIN | \
79 SCHED_FLAG_UTIL_CLAMP_MAX)
80
81#define SCHED_FLAG_ALL (SCHED_FLAG_RESET_ON_FORK | \
82 SCHED_FLAG_RECLAIM | \
83 SCHED_FLAG_DL_OVERRUN | \
84 SCHED_FLAG_KEEP_ALL | \
85 SCHED_FLAG_UTIL_CLAMP)
86
87#endif /* _UAPI_LINUX_SCHED_H */