diff options
Diffstat (limited to 'kernel/sched/ext_idle.h')
| -rw-r--r-- | kernel/sched/ext_idle.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/kernel/sched/ext_idle.h b/kernel/sched/ext_idle.h new file mode 100644 index 000000000000..511cc2221f7a --- /dev/null +++ b/kernel/sched/ext_idle.h @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * BPF extensible scheduler class: Documentation/scheduler/sched-ext.rst + * + * Copyright (c) 2022 Meta Platforms, Inc. and affiliates. + * Copyright (c) 2022 Tejun Heo <tj@kernel.org> + * Copyright (c) 2022 David Vernet <dvernet@meta.com> + * Copyright (c) 2024 Andrea Righi <arighi@nvidia.com> + */ +#ifndef _KERNEL_SCHED_EXT_IDLE_H +#define _KERNEL_SCHED_EXT_IDLE_H + +struct sched_ext_ops; + +#ifdef CONFIG_SMP +void scx_idle_update_selcpu_topology(struct sched_ext_ops *ops); +void scx_idle_init_masks(void); +bool scx_idle_test_and_clear_cpu(int cpu); +s32 scx_pick_idle_cpu(const struct cpumask *cpus_allowed, int node, u64 flags); +#else /* !CONFIG_SMP */ +static inline void scx_idle_update_selcpu_topology(struct sched_ext_ops *ops) {} +static inline void scx_idle_init_masks(void) {} +static inline bool scx_idle_test_and_clear_cpu(int cpu) { return false; } +static inline s32 scx_pick_idle_cpu(const struct cpumask *cpus_allowed, int node, u64 flags) +{ + return -EBUSY; +} +#endif /* CONFIG_SMP */ + +s32 scx_select_cpu_dfl(struct task_struct *p, s32 prev_cpu, u64 wake_flags, u64 flags); +void scx_idle_enable(struct sched_ext_ops *ops); +void scx_idle_disable(void); +int scx_idle_init(void); + +#endif /* _KERNEL_SCHED_EXT_IDLE_H */ |