1 /* SPDX-License-Identifier: GPL-2.0 */
2
3 #define CPUPRI_NR_PRIORITIES (MAX_RT_PRIO+1)
4
5 #define CPUPRI_INVALID -1
6 #define CPUPRI_NORMAL 0
7 /* values 1-99 are for RT1-RT99 priorities */
8 #define CPUPRI_HIGHER 100
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,
22 struct cpumask *lowest_mask);
23 int cpupri_find_fitness(struct cpupri *cp, struct task_struct *p,
24 struct cpumask *lowest_mask,
25 bool (*fitness_fn)(struct task_struct *p, int cpu));
26 void cpupri_set(struct cpupri *cp, int cpu, int pri);
27 int cpupri_init(struct cpupri *cp);
28 void cpupri_cleanup(struct cpupri *cp);
29 #endif
30
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