[linux-block.git] / kernel / sched / cpupri.h

/* SPDX-License-Identifier: GPL-2.0 */

#define CPUPRI_NR_PRIORITIES	(MAX_RT_PRIO + 2)

#define CPUPRI_INVALID		-1
#define CPUPRI_IDLE		 0
#define CPUPRI_NORMAL		 1
/* values 2-101 are RT priorities 0-99 */

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;
};

#ifdef CONFIG_SMP
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);
#endif
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
6e0534f2	2
e539d8fc	3	#define CPUPRI_NR_PRIORITIES (MAX_RT_PRIO + 2)
6e0534f2	4
97fb7a0a IM	5	#define CPUPRI_INVALID -1
	6	#define CPUPRI_IDLE 0
	7	#define CPUPRI_NORMAL 1
6e0534f2 GH	8	/* values 2-101 are RT priorities 0-99 */
	9
	10	struct cpupri_vec {
97fb7a0a IM	11	atomic_t count;
97fb7a0a IM	12	cpumask_var_t mask;
6e0534f2 GH	13	};
	14
	15	struct cpupri {
97fb7a0a IM	16	struct cpupri_vec pri_to_cpu[CPUPRI_NR_PRIORITIES];
97fb7a0a IM	17	int *cpu_to_pri;
6e0534f2 GH	18	};
	19
	20	#ifdef CONFIG_SMP
804d402f	21	int cpupri_find(struct cpupri cp, struct task_struct p,
a1bd02e1 QY	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));
6e0534f2	26	void cpupri_set(struct cpupri *cp, int cpu, int pri);
97fb7a0a	27	int cpupri_init(struct cpupri *cp);
68e74568	28	void cpupri_cleanup(struct cpupri *cp);
6e0534f2	29	#endif