1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _LINUX_SCHED_DEADLINE_H 2 #ifndef _LINUX_SCHED_DEADLINE_H 3 #define _LINUX_SCHED_DEADLINE_H 3 #define _LINUX_SCHED_DEADLINE_H 4 4 5 /* 5 /* 6 * SCHED_DEADLINE tasks has negative prioritie 6 * SCHED_DEADLINE tasks has negative priorities, reflecting 7 * the fact that any of them has higher prio t 7 * the fact that any of them has higher prio than RT and 8 * NORMAL/BATCH tasks. 8 * NORMAL/BATCH tasks. 9 */ 9 */ 10 10 11 #include <linux/sched.h> 11 #include <linux/sched.h> 12 12 13 #define MAX_DL_PRIO 0 13 #define MAX_DL_PRIO 0 14 14 15 static inline int dl_prio(int prio) 15 static inline int dl_prio(int prio) 16 { 16 { 17 if (unlikely(prio < MAX_DL_PRIO)) 17 if (unlikely(prio < MAX_DL_PRIO)) 18 return 1; 18 return 1; 19 return 0; 19 return 0; 20 } 20 } 21 21 22 static inline int dl_task(struct task_struct * 22 static inline int dl_task(struct task_struct *p) 23 { 23 { 24 return dl_prio(p->prio); 24 return dl_prio(p->prio); 25 } 25 } 26 26 27 static inline bool dl_time_before(u64 a, u64 b 27 static inline bool dl_time_before(u64 a, u64 b) 28 { 28 { 29 return (s64)(a - b) < 0; 29 return (s64)(a - b) < 0; 30 } 30 } 31 31 32 #ifdef CONFIG_SMP 32 #ifdef CONFIG_SMP 33 33 34 struct root_domain; 34 struct root_domain; 35 extern void dl_add_task_root_domain(struct tas 35 extern void dl_add_task_root_domain(struct task_struct *p); 36 extern void dl_clear_root_domain(struct root_d 36 extern void dl_clear_root_domain(struct root_domain *rd); 37 37 38 #endif /* CONFIG_SMP */ 38 #endif /* CONFIG_SMP */ 39 39 40 #endif /* _LINUX_SCHED_DEADLINE_H */ 40 #endif /* _LINUX_SCHED_DEADLINE_H */ 41 41
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