xref: /linux/kernel/sched/ext/idle.h (revision 3cd1f76be638b7386201171e7bb4c88095774dd5)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * BPF extensible scheduler class: Documentation/scheduler/sched-ext.rst
4  *
5  * Copyright (c) 2022 Meta Platforms, Inc. and affiliates.
6  * Copyright (c) 2022 Tejun Heo <tj@kernel.org>
7  * Copyright (c) 2022 David Vernet <dvernet@meta.com>
8  * Copyright (c) 2024 Andrea Righi <arighi@nvidia.com>
9  */
10 #ifndef _KERNEL_SCHED_EXT_IDLE_H
11 #define _KERNEL_SCHED_EXT_IDLE_H
12 
13 #include <linux/btf_ids.h>
14 
15 struct cpumask;
16 struct sched_ext_ops;
17 struct task_struct;
18 
19 extern struct btf_id_set8 scx_kfunc_ids_idle;
20 extern struct btf_id_set8 scx_kfunc_ids_select_cpu;
21 
22 void scx_idle_update_selcpu_topology(struct sched_ext_ops *ops);
23 void scx_idle_init_masks(void);
24 
25 s32 scx_select_cpu_dfl(struct task_struct *p, s32 prev_cpu, u64 wake_flags,
26 		       const struct cpumask *cpus_allowed, u64 flags);
27 void scx_idle_enable(struct sched_ext_ops *ops);
28 void scx_idle_disable(void);
29 int scx_idle_init(void);
30 
31 #endif /* _KERNEL_SCHED_EXT_IDLE_H */
32