[mirror_ubuntu-artful-kernel.git] / kernel / sched / cpudeadline.h

#ifndef _LINUX_CPUDL_H
#define _LINUX_CPUDL_H

#include <linux/sched.h>

#define IDX_INVALID     -1

struct array_item {
	u64 dl;
	int cpu;
};

struct cpudl {
	raw_spinlock_t lock;
	int size;
	int cpu_to_idx[NR_CPUS];
	struct array_item elements[NR_CPUS];
	cpumask_var_t free_cpus;
};


#ifdef CONFIG_SMP
int cpudl_find(struct cpudl *cp, struct task_struct *p,
	       struct cpumask *later_mask);
void cpudl_set(struct cpudl *cp, int cpu, u64 dl, int is_valid);
int cpudl_init(struct cpudl *cp);
void cpudl_cleanup(struct cpudl *cp);
#else
#define cpudl_set(cp, cpu, dl) do { } while (0)
#define cpudl_init() do { } while (0)
#endif /* CONFIG_SMP */

#endif /* _LINUX_CPUDL_H */
Commit	Line	Data
6bfd6d72 JL	1	#ifndef _LINUX_CPUDL_H
	2	#define _LINUX_CPUDL_H
	3
	4	#include <linux/sched.h>
	5
	6	#define IDX_INVALID -1
	7
	8	struct array_item {
	9	u64 dl;
	10	int cpu;
	11	};
	12
	13	struct cpudl {
	14	raw_spinlock_t lock;
	15	int size;
	16	int cpu_to_idx[NR_CPUS];
	17	struct array_item elements[NR_CPUS];
	18	cpumask_var_t free_cpus;
	19	};
	20
	21
	22	#ifdef CONFIG_SMP
	23	int cpudl_find(struct cpudl cp, struct task_struct p,
	24	struct cpumask *later_mask);
	25	void cpudl_set(struct cpudl *cp, int cpu, u64 dl, int is_valid);
	26	int cpudl_init(struct cpudl *cp);
	27	void cpudl_cleanup(struct cpudl *cp);
	28	#else
	29	#define cpudl_set(cp, cpu, dl) do { } while (0)
	30	#define cpudl_init() do { } while (0)
	31	#endif /* CONFIG_SMP */
	32
	33	#endif /* _LINUX_CPUDL_H */