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 7 struct ctl_table; 8 9 #ifdef CONFIG_DETECT_HUNG_TASK 10 /* used for hung_task and block/ */ 11 extern unsigned long sysctl_hung_task_timeout_secs; 12 #else 13 /* Avoid need for ifdefs elsewhere in the code */ 14 enum { sysctl_hung_task_timeout_secs = 0 }; 15 #endif 16 17 extern unsigned int sysctl_sched_child_runs_first; 18 19 enum sched_tunable_scaling { 20 SCHED_TUNABLESCALING_NONE, 21 SCHED_TUNABLESCALING_LOG, 22 SCHED_TUNABLESCALING_LINEAR, 23 SCHED_TUNABLESCALING_END, 24 }; 25 26 /* 27 * control realtime throttling: 28 * 29 * /proc/sys/kernel/sched_rt_period_us 30 * /proc/sys/kernel/sched_rt_runtime_us 31 */ 32 extern unsigned int sysctl_sched_rt_period; 33 extern int sysctl_sched_rt_runtime; 34 35 extern unsigned int sysctl_sched_dl_period_max; 36 extern unsigned int sysctl_sched_dl_period_min; 37 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; 42 #endif 43 44 #ifdef CONFIG_CFS_BANDWIDTH 45 extern unsigned int sysctl_sched_cfs_bandwidth_slice; 46 #endif 47 48 #ifdef CONFIG_SCHED_AUTOGROUP 49 extern unsigned int sysctl_sched_autogroup_enabled; 50 #endif 51 52 extern int sysctl_sched_rr_timeslice; 53 extern int sched_rr_timeslice; 54 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); 65 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); 70 #endif 71 72 #endif /* _LINUX_SCHED_SYSCTL_H */ 73