[linux.git] / kernel / sched_cpupri.h

#ifndef _LINUX_CPUPRI_H
#define _LINUX_CPUPRI_H

#include <linux/sched.h>

#define CPUPRI_NR_PRIORITIES	(MAX_RT_PRIO + 2)
#define CPUPRI_NR_PRI_WORDS	BITS_TO_LONGS(CPUPRI_NR_PRIORITIES)

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

struct cpupri_vec {
	raw_spinlock_t lock;
	int        count;
	cpumask_var_t mask;
};

struct cpupri {
	struct cpupri_vec pri_to_cpu[CPUPRI_NR_PRIORITIES];
	long              pri_active[CPUPRI_NR_PRI_WORDS];
	int               cpu_to_pri[NR_CPUS];
};

#ifdef CONFIG_SMP
int  cpupri_find(struct cpupri *cp,
		 struct task_struct *p, struct cpumask *lowest_mask);
void cpupri_set(struct cpupri *cp, int cpu, int pri);
int cpupri_init(struct cpupri *cp);
void cpupri_cleanup(struct cpupri *cp);
#else
#define cpupri_set(cp, cpu, pri) do { } while (0)
#define cpupri_init() do { } while (0)
#endif

#endif /* _LINUX_CPUPRI_H */
Commit	Line	Data
6e0534f2 GH	1	#ifndef _LINUX_CPUPRI_H
	2	#define _LINUX_CPUPRI_H
	3
	4	#include <linux/sched.h>
	5
e539d8fc TG	6	#define CPUPRI_NR_PRIORITIES (MAX_RT_PRIO + 2)
e539d8fc TG	7	#define CPUPRI_NR_PRI_WORDS BITS_TO_LONGS(CPUPRI_NR_PRIORITIES)
6e0534f2 GH	8
	9	#define CPUPRI_INVALID -1
	10	#define CPUPRI_IDLE 0
	11	#define CPUPRI_NORMAL 1
	12	/* values 2-101 are RT priorities 0-99 */
	13
	14	struct cpupri_vec {
fe841226	15	raw_spinlock_t lock;
6e0534f2	16	int count;
68e74568	17	cpumask_var_t mask;
6e0534f2 GH	18	};
	19
	20	struct cpupri {
	21	struct cpupri_vec pri_to_cpu[CPUPRI_NR_PRIORITIES];
	22	long pri_active[CPUPRI_NR_PRI_WORDS];
	23	int cpu_to_pri[NR_CPUS];
	24	};
	25
	26	#ifdef CONFIG_SMP
	27	int cpupri_find(struct cpupri *cp,
612a726f	28	struct task_struct p, struct cpumask lowest_mask);
6e0534f2	29	void cpupri_set(struct cpupri *cp, int cpu, int pri);
68c38fc3	30	int cpupri_init(struct cpupri *cp);
68e74568	31	void cpupri_cleanup(struct cpupri *cp);
6e0534f2 GH	32	#else
	33	#define cpupri_set(cp, cpu, pri) do { } while (0)
	34	#define cpupri_init() do { } while (0)
	35	#endif
	36
	37	#endif /* _LINUX_CPUPRI_H */