1 /* SPDX-License-Identifier: GPL-2.0 */ 1
2 /*
3 * BPF extensible scheduler class: Documentati
4 *
5 * Copyright (c) 2022 Meta Platforms, Inc. and
6 * Copyright (c) 2022 Tejun Heo <tj@kernel.org
7 * Copyright (c) 2022 David Vernet <dvernet@me
8 */
9 #ifdef CONFIG_SCHED_CLASS_EXT
10
11 void scx_tick(struct rq *rq);
12 void init_scx_entity(struct sched_ext_entity *
13 void scx_pre_fork(struct task_struct *p);
14 int scx_fork(struct task_struct *p);
15 void scx_post_fork(struct task_struct *p);
16 void scx_cancel_fork(struct task_struct *p);
17 bool scx_can_stop_tick(struct rq *rq);
18 void scx_rq_activate(struct rq *rq);
19 void scx_rq_deactivate(struct rq *rq);
20 int scx_check_setscheduler(struct task_struct
21 bool task_should_scx(int policy);
22 void init_sched_ext_class(void);
23
24 static inline u32 scx_cpuperf_target(s32 cpu)
25 {
26 if (scx_enabled())
27 return cpu_rq(cpu)->scx.cpuper
28 else
29 return 0;
30 }
31
32 static inline bool task_on_scx(const struct ta
33 {
34 return scx_enabled() && p->sched_class
35 }
36
37 #ifdef CONFIG_SCHED_CORE
38 bool scx_prio_less(const struct task_struct *a
39 bool in_fi);
40 #endif
41
42 #else /* CONFIG_SCHED_CLASS_EXT */
43
44 static inline void scx_tick(struct rq *rq) {}
45 static inline void scx_pre_fork(struct task_st
46 static inline int scx_fork(struct task_struct
47 static inline void scx_post_fork(struct task_s
48 static inline void scx_cancel_fork(struct task
49 static inline u32 scx_cpuperf_target(s32 cpu)
50 static inline bool scx_can_stop_tick(struct rq
51 static inline void scx_rq_activate(struct rq *
52 static inline void scx_rq_deactivate(struct rq
53 static inline int scx_check_setscheduler(struc
54 static inline bool task_on_scx(const struct ta
55 static inline void init_sched_ext_class(void)
56
57 #endif /* CONFIG_SCHED_CLASS_EXT */
58
59 #if defined(CONFIG_SCHED_CLASS_EXT) && defined
60 void __scx_update_idle(struct rq *rq, bool idl
61
62 static inline void scx_update_idle(struct rq *
63 {
64 if (scx_enabled())
65 __scx_update_idle(rq, idle);
66 }
67 #else
68 static inline void scx_update_idle(struct rq *
69 #endif
70
71 #ifdef CONFIG_CGROUP_SCHED
72 #ifdef CONFIG_EXT_GROUP_SCHED
73 int scx_tg_online(struct task_group *tg);
74 void scx_tg_offline(struct task_group *tg);
75 int scx_cgroup_can_attach(struct cgroup_taskse
76 void scx_move_task(struct task_struct *p);
77 void scx_cgroup_finish_attach(void);
78 void scx_cgroup_cancel_attach(struct cgroup_ta
79 void scx_group_set_weight(struct task_group *t
80 void scx_group_set_idle(struct task_group *tg,
81 #else /* CONFIG_EXT_GROUP_SCHED */
82 static inline int scx_tg_online(struct task_gr
83 static inline void scx_tg_offline(struct task_
84 static inline int scx_cgroup_can_attach(struct
85 static inline void scx_move_task(struct task_s
86 static inline void scx_cgroup_finish_attach(vo
87 static inline void scx_cgroup_cancel_attach(st
88 static inline void scx_group_set_weight(struct
89 static inline void scx_group_set_idle(struct t
90 #endif /* CONFIG_EXT_GROUP_SCHED */
91 #endif /* CONFIG_CGROUP_SCHED */
92
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