blob: 47fb6452f0428cd12f494904945c7a3918a00407 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
/******************************************************************************
* Additional declarations for the generic scheduler interface. This should
* only be included by files that implement conforming schedulers.
*
* Portions by Mark Williamson are (C) 2004 Intel Research Cambridge
*/
#ifndef __XEN_SCHED_IF_H__
#define __XEN_SCHED_IF_H__
#define BUCKETS 10
/*300*/
struct schedule_data {
spinlock_t schedule_lock; /* spinlock protecting curr */
struct exec_domain *curr; /* current task */
struct exec_domain *idle; /* idle task for this cpu */
void *sched_priv;
struct ac_timer s_timer; /* scheduling timer */
unsigned long tick; /* current periodic 'tick' */
#ifdef BUCKETS
u32 hist[BUCKETS]; /* for scheduler latency histogram */
#endif
} __cacheline_aligned;
struct task_slice {
struct exec_domain *task;
s_time_t time;
};
struct scheduler {
char *name; /* full name for this scheduler */
char *opt_name; /* option name for this scheduler */
unsigned int sched_id; /* ID for this scheduler */
int (*alloc_task) (struct exec_domain *);
void (*add_task) (struct exec_domain *);
void (*free_task) (struct domain *);
void (*rem_task) (struct exec_domain *);
void (*sleep) (struct exec_domain *);
void (*wake) (struct exec_domain *);
struct task_slice (*do_schedule) (s_time_t);
int (*control) (struct sched_ctl_cmd *);
int (*adjdom) (struct domain *,
struct sched_adjdom_cmd *);
void (*dump_settings) (void);
void (*dump_cpu_state) (int);
};
extern struct schedule_data schedule_data[];
#endif /* __XEN_SCHED_IF_H__ */
|
