1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _LINUX_SCHED_SYSCTL_H
3 #define _LINUX_SCHED_SYSCTL_H
5 #include <linux/types.h>
9 #ifdef CONFIG_DETECT_HUNG_TASK
10 /* used for hung_task and block/ */
11 extern unsigned long sysctl_hung_task_timeout_secs;
13 /* Avoid need for ifdefs elsewhere in the code */
14 enum { sysctl_hung_task_timeout_secs = 0 };
17 extern unsigned int sysctl_sched_child_runs_first;
19 enum sched_tunable_scaling {
20 SCHED_TUNABLESCALING_NONE,
21 SCHED_TUNABLESCALING_LOG,
22 SCHED_TUNABLESCALING_LINEAR,
23 SCHED_TUNABLESCALING_END,
27 * control realtime throttling:
29 * /proc/sys/kernel/sched_rt_period_us
30 * /proc/sys/kernel/sched_rt_runtime_us
32 extern unsigned int sysctl_sched_rt_period;
33 extern int sysctl_sched_rt_runtime;
35 extern unsigned int sysctl_sched_dl_period_max;
36 extern unsigned int sysctl_sched_dl_period_min;
38 #ifdef CONFIG_UCLAMP_TASK
39 extern unsigned int sysctl_sched_uclamp_util_min;
40 extern unsigned int sysctl_sched_uclamp_util_max;
41 extern unsigned int sysctl_sched_uclamp_util_min_rt_default;
44 #ifdef CONFIG_CFS_BANDWIDTH
45 extern unsigned int sysctl_sched_cfs_bandwidth_slice;
48 #ifdef CONFIG_SCHED_AUTOGROUP
49 extern unsigned int sysctl_sched_autogroup_enabled;
52 extern int sysctl_sched_rr_timeslice;
53 extern int sched_rr_timeslice;
55 int sched_rr_handler(struct ctl_table *table, int write, void *buffer,
56 size_t *lenp, loff_t *ppos);
57 int sched_rt_handler(struct ctl_table *table, int write, void *buffer,
58 size_t *lenp, loff_t *ppos);
59 int sysctl_sched_uclamp_handler(struct ctl_table *table, int write,
60 void *buffer, size_t *lenp, loff_t *ppos);
61 int sysctl_numa_balancing(struct ctl_table *table, int write, void *buffer,
62 size_t *lenp, loff_t *ppos);
63 int sysctl_schedstats(struct ctl_table *table, int write, void *buffer,
64 size_t *lenp, loff_t *ppos);
66 #if defined(CONFIG_ENERGY_MODEL) && defined(CONFIG_CPU_FREQ_GOV_SCHEDUTIL)
67 extern unsigned int sysctl_sched_energy_aware;
68 int sched_energy_aware_handler(struct ctl_table *table, int write,
69 void *buffer, size_t *lenp, loff_t *ppos);
72 #endif /* _LINUX_SCHED_SYSCTL_H */