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 *sched_ctx, 22 struct task_struct *exec_ctx, 23 struct cpumask *lowest_mask); 24 int cpupri_find_fitness(struct cpupri *cp, struct task_struct *sched_ctx, 25 struct task_struct *exec_ctx, 26 struct cpumask *lowest_mask, 27 bool (*fitness_fn)(struct task_struct *p, int cpu)); 28 void cpupri_set(struct cpupri *cp, int cpu, int pri); 29 int cpupri_init(struct cpupri *cp); 30 void cpupri_cleanup(struct cpupri *cp); 31 #endif 32