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 11 #ifdef CONFIG_SMP 12 extern unsigned int sysctl_hung_task_all_cpu_backtrace; 13 #else 14 #define sysctl_hung_task_all_cpu_backtrace 0 15 #endif /* CONFIG_SMP */ 16 17 extern int sysctl_hung_task_check_count; 18 extern unsigned int sysctl_hung_task_panic; 19 extern unsigned long sysctl_hung_task_timeout_secs; 20 extern unsigned long sysctl_hung_task_check_interval_secs; 21 extern int sysctl_hung_task_warnings; 22 int proc_dohung_task_timeout_secs(struct ctl_table *table, int write, 23 void *buffer, size_t *lenp, loff_t *ppos); 24 #else 25 /* Avoid need for ifdefs elsewhere in the code */ 26 enum { sysctl_hung_task_timeout_secs = 0 }; 27 #endif 28 29 extern unsigned int sysctl_sched_child_runs_first; 30 31 enum sched_tunable_scaling { 32 SCHED_TUNABLESCALING_NONE, 33 SCHED_TUNABLESCALING_LOG, 34 SCHED_TUNABLESCALING_LINEAR, 35 SCHED_TUNABLESCALING_END, 36 }; 37 38 /* 39 * control realtime throttling: 40 * 41 * /proc/sys/kernel/sched_rt_period_us 42 * /proc/sys/kernel/sched_rt_runtime_us 43 */ 44 extern unsigned int sysctl_sched_rt_period; 45 extern int sysctl_sched_rt_runtime; 46 47 extern unsigned int sysctl_sched_dl_period_max; 48 extern unsigned int sysctl_sched_dl_period_min; 49 50 #ifdef CONFIG_UCLAMP_TASK 51 extern unsigned int sysctl_sched_uclamp_util_min; 52 extern unsigned int sysctl_sched_uclamp_util_max; 53 extern unsigned int sysctl_sched_uclamp_util_min_rt_default; 54 #endif 55 56 #ifdef CONFIG_CFS_BANDWIDTH 57 extern unsigned int sysctl_sched_cfs_bandwidth_slice; 58 #endif 59 60 #ifdef CONFIG_SCHED_AUTOGROUP 61 extern unsigned int sysctl_sched_autogroup_enabled; 62 #endif 63 64 extern int sysctl_sched_rr_timeslice; 65 extern int sched_rr_timeslice; 66 67 int sched_rr_handler(struct ctl_table *table, int write, void *buffer, 68 size_t *lenp, loff_t *ppos); 69 int sched_rt_handler(struct ctl_table *table, int write, void *buffer, 70 size_t *lenp, loff_t *ppos); 71 int sysctl_sched_uclamp_handler(struct ctl_table *table, int write, 72 void *buffer, size_t *lenp, loff_t *ppos); 73 int sysctl_numa_balancing(struct ctl_table *table, int write, void *buffer, 74 size_t *lenp, loff_t *ppos); 75 int sysctl_schedstats(struct ctl_table *table, int write, void *buffer, 76 size_t *lenp, loff_t *ppos); 77 78 #if defined(CONFIG_ENERGY_MODEL) && defined(CONFIG_CPU_FREQ_GOV_SCHEDUTIL) 79 extern unsigned int sysctl_sched_energy_aware; 80 int sched_energy_aware_handler(struct ctl_table *table, int write, 81 void *buffer, size_t *lenp, loff_t *ppos); 82 #endif 83 84 #endif /* _LINUX_SCHED_SYSCTL_H */ 85