sched_cpupri.h 931 B

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