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/* SPDX-License-Identifier: GPL-2.0 */
#include <linux/atomic.h>
#include <linux/cpumask.h>
#include <linux/sched/rt.h>
#define CPUPRI_NR_PRIORITIES (MAX_RT_PRIO+1)
#define CPUPRI_INVALID -1
#define CPUPRI_NORMAL 0
/* values 1-99 are for RT1-RT99 priorities */
#define CPUPRI_HIGHER 100
struct cpupri_vec {
atomic_t count;
cpumask_var_t mask;
};
struct cpupri {
struct cpupri_vec pri_to_cpu[CPUPRI_NR_PRIORITIES];
int *cpu_to_pri;
};
int cpupri_find(struct cpupri *cp, struct task_struct *p,
struct cpumask *lowest_mask);
int cpupri_find_fitness(struct cpupri *cp, struct task_struct *p,
struct cpumask *lowest_mask,
bool (*fitness_fn)(struct task_struct *p, int cpu));
void cpupri_set(struct cpupri *cp, int cpu, int pri);
int cpupri_init(struct cpupri *cp);
void cpupri_cleanup(struct cpupri *cp);
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