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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 | |
14 | struct cpupri_vec { |
15 | spinlock_t lock; |
16 | int count; |
17 | cpumask_var_t mask; |
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, |
28 | struct task_struct *p, struct cpumask *lowest_mask); |
29 | void cpupri_set(struct cpupri *cp, int cpu, int pri); |
30 | int cpupri_init(struct cpupri *cp, bool bootmem); |
31 | void 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 */ |
38 |
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