kernel/sched/cpupri.h

   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
   8 #define CPUPRI_INVALID -1
   9 #define CPUPRI_IDLE     0
  10 #define CPUPRI_NORMAL   1
  11 /* values 2-101 are RT priorities 0-99 */
  12
  13 struct cpupri_vec {
  14         atomic_t        count;
  15         cpumask_var_t   mask;
  16 };
  17
  18 struct cpupri {
  19         struct cpupri_vec pri_to_cpu[CPUPRI_NR_PRIORITIES];
  20         int               cpu_to_pri[NR_CPUS];
  21 };
  22
  23 #ifdef CONFIG_SMP
  24 int  cpupri_find(struct cpupri *cp,
  25                  struct task_struct *p, struct cpumask *lowest_mask);
  26 void cpupri_set(struct cpupri *cp, int cpu, int pri);
  27 int cpupri_init(struct cpupri *cp);
  28 void cpupri_cleanup(struct cpupri *cp);
  29 #else
  30 #define cpupri_set(cp, cpu, pri) do { } while (0)
  31 #define cpupri_init() do { } while (0)
  32 #endif
  33
  34 #endif /* _LINUX_CPUPRI_H */