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