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 enum sched_tunable_scaling { 18 SCHED_TUNABLESCALING_NONE, 19 SCHED_TUNABLESCALING_LOG, 20 SCHED_TUNABLESCALING_LINEAR, 21 SCHED_TUNABLESCALING_END, 22 }; 23 24 #define NUMA_BALANCING_DISABLED 0x0 25 #define NUMA_BALANCING_NORMAL 0x1 26 #define NUMA_BALANCING_MEMORY_TIERING 0x2 27 28 #ifdef CONFIG_NUMA_BALANCING 29 extern int sysctl_numa_balancing_mode; 30 #else 31 #define sysctl_numa_balancing_mode 0 32 #endif 33 34 extern unsigned int sysctl_sched_dl_period_max; 35 extern unsigned int sysctl_sched_dl_period_min; 36 37 #ifdef CONFIG_UCLAMP_TASK 38 extern unsigned int sysctl_sched_uclamp_util_min; 39 extern unsigned int sysctl_sched_uclamp_util_max; 40 extern unsigned int sysctl_sched_uclamp_util_min_rt_default; 41 #endif 42 43 #ifdef CONFIG_CFS_BANDWIDTH 44 extern unsigned int sysctl_sched_cfs_bandwidth_slice; 45 #endif 46 47 extern int sysctl_sched_rr_timeslice; 48 extern int sched_rr_timeslice; 49 50 int sched_rr_handler(struct ctl_table *table, int write, void *buffer, 51 size_t *lenp, loff_t *ppos); 52 int sysctl_sched_uclamp_handler(struct ctl_table *table, int write, 53 void *buffer, size_t *lenp, loff_t *ppos); 54 int sysctl_numa_balancing(struct ctl_table *table, int write, void *buffer, 55 size_t *lenp, loff_t *ppos); 56 57 #if defined(CONFIG_ENERGY_MODEL) && defined(CONFIG_CPU_FREQ_GOV_SCHEDUTIL) 58 extern unsigned int sysctl_sched_energy_aware; 59 int sched_energy_aware_handler(struct ctl_table *table, int write, 60 void *buffer, size_t *lenp, loff_t *ppos); 61 #endif 62 63 #endif /* _LINUX_SCHED_SYSCTL_H */ 64