1#ifndef _LINUX_CPUPRI_H
 2#define _LINUX_CPUPRI_H
 3
 4#include <linux/sched.h>
 5
 6#define CPUPRI_NR_PRIORITIES	(MAX_RT_PRIO + 2)
 7#define CPUPRI_NR_PRI_WORDS	BITS_TO_LONGS(CPUPRI_NR_PRIORITIES)
 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
14struct cpupri_vec {
15	raw_spinlock_t lock;
16	int        count;
17	cpumask_var_t mask;
18};
19
20struct 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
27int  cpupri_find(struct cpupri *cp,
28		 struct task_struct *p, struct cpumask *lowest_mask);
29void cpupri_set(struct cpupri *cp, int cpu, int pri);
30int cpupri_init(struct cpupri *cp);
31void cpupri_cleanup(struct cpupri *cp);
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 */