Linux kernel mirror (for testing)
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linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _LINUX_SCHED_SYSCTL_H
3#define _LINUX_SCHED_SYSCTL_H
4
5#include <linux/types.h>
6
7struct ctl_table;
8
9#ifdef CONFIG_DETECT_HUNG_TASK
10/* used for hung_task and block/ */
11extern unsigned long sysctl_hung_task_timeout_secs;
12#else
13/* Avoid need for ifdefs elsewhere in the code */
14enum { sysctl_hung_task_timeout_secs = 0 };
15#endif
16
17extern unsigned int sysctl_sched_child_runs_first;
18
19enum sched_tunable_scaling {
20 SCHED_TUNABLESCALING_NONE,
21 SCHED_TUNABLESCALING_LOG,
22 SCHED_TUNABLESCALING_LINEAR,
23 SCHED_TUNABLESCALING_END,
24};
25
26#define NUMA_BALANCING_DISABLED 0x0
27#define NUMA_BALANCING_NORMAL 0x1
28#define NUMA_BALANCING_MEMORY_TIERING 0x2
29
30#ifdef CONFIG_NUMA_BALANCING
31extern int sysctl_numa_balancing_mode;
32#else
33#define sysctl_numa_balancing_mode 0
34#endif
35
36/*
37 * control realtime throttling:
38 *
39 * /proc/sys/kernel/sched_rt_period_us
40 * /proc/sys/kernel/sched_rt_runtime_us
41 */
42extern unsigned int sysctl_sched_rt_period;
43extern int sysctl_sched_rt_runtime;
44
45extern unsigned int sysctl_sched_dl_period_max;
46extern unsigned int sysctl_sched_dl_period_min;
47
48#ifdef CONFIG_UCLAMP_TASK
49extern unsigned int sysctl_sched_uclamp_util_min;
50extern unsigned int sysctl_sched_uclamp_util_max;
51extern unsigned int sysctl_sched_uclamp_util_min_rt_default;
52#endif
53
54#ifdef CONFIG_CFS_BANDWIDTH
55extern unsigned int sysctl_sched_cfs_bandwidth_slice;
56#endif
57
58extern int sysctl_sched_rr_timeslice;
59extern int sched_rr_timeslice;
60
61int sched_rr_handler(struct ctl_table *table, int write, void *buffer,
62 size_t *lenp, loff_t *ppos);
63int sched_rt_handler(struct ctl_table *table, int write, void *buffer,
64 size_t *lenp, loff_t *ppos);
65int sysctl_sched_uclamp_handler(struct ctl_table *table, int write,
66 void *buffer, size_t *lenp, loff_t *ppos);
67int sysctl_numa_balancing(struct ctl_table *table, int write, void *buffer,
68 size_t *lenp, loff_t *ppos);
69int sysctl_schedstats(struct ctl_table *table, int write, void *buffer,
70 size_t *lenp, loff_t *ppos);
71
72#if defined(CONFIG_ENERGY_MODEL) && defined(CONFIG_CPU_FREQ_GOV_SCHEDUTIL)
73extern unsigned int sysctl_sched_energy_aware;
74int sched_energy_aware_handler(struct ctl_table *table, int write,
75 void *buffer, size_t *lenp, loff_t *ppos);
76#endif
77
78#endif /* _LINUX_SCHED_SYSCTL_H */