xref: /linux/kernel/sched/cpupri.h (revision c13aca79ff3c4af5fd31a5b2743a90eba6e36a26)
1  /* SPDX-License-Identifier: GPL-2.0 */
2  
3  #define CPUPRI_NR_PRIORITIES	(MAX_RT_PRIO + 2)
4  
5  #define CPUPRI_INVALID		-1
6  #define CPUPRI_IDLE		 0
7  #define CPUPRI_NORMAL		 1
8  /* values 2-101 are RT priorities 0-99 */
9  
10  struct cpupri_vec {
11  	atomic_t		count;
12  	cpumask_var_t		mask;
13  };
14  
15  struct cpupri {
16  	struct cpupri_vec	pri_to_cpu[CPUPRI_NR_PRIORITIES];
17  	int			*cpu_to_pri;
18  };
19  
20  #ifdef CONFIG_SMP
21  int  cpupri_find(struct cpupri *cp, struct task_struct *p, struct cpumask *lowest_mask);
22  void cpupri_set(struct cpupri *cp, int cpu, int pri);
23  int  cpupri_init(struct cpupri *cp);
24  void cpupri_cleanup(struct cpupri *cp);
25  #endif
26