kernel/sched/cpupri.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _LINUX_CPUPRI_H
   3 #define _LINUX_CPUPRI_H
   4
   5 #include <linux/sched.h>
   6
   7 #define CPUPRI_NR_PRIORITIES    (MAX_RT_PRIO + 2)
   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         atomic_t        count;
  16         cpumask_var_t   mask;
  17 };
  18
  19 struct cpupri {
  20         struct cpupri_vec pri_to_cpu[CPUPRI_NR_PRIORITIES];
  21         int *cpu_to_pri;
  22 };
  23
  24 #ifdef CONFIG_SMP
  25 int  cpupri_find(struct cpupri *cp,
  26                  struct task_struct *p, struct cpumask *lowest_mask);
  27 void cpupri_set(struct cpupri *cp, int cpu, int pri);
  28 int cpupri_init(struct cpupri *cp);
  29 void cpupri_cleanup(struct cpupri *cp);
  30 #endif
  31
  32 #endif /* _LINUX_CPUPRI_H */