timer.h revision 0cbf83bbe524d6014daf11005b99084d50489b80 
1#ifndef __NOUVEAU_TIMER_H__
2#define __NOUVEAU_TIMER_H__
3
4#include <core/subdev.h>
5#include <core/device.h>
6
7struct nouveau_alarm {
8	struct list_head head;
9	u64 timestamp;
10	void (*func)(struct nouveau_alarm *);
11};
12
13static inline void
14nouveau_alarm_init(struct nouveau_alarm *alarm,
15		   void (*func)(struct nouveau_alarm *))
16{
17	INIT_LIST_HEAD(&alarm->head);
18	alarm->func = func;
19}
20
21bool nouveau_timer_wait_eq(void *, u64 nsec, u32 addr, u32 mask, u32 data);
22bool nouveau_timer_wait_ne(void *, u64 nsec, u32 addr, u32 mask, u32 data);
23bool nouveau_timer_wait_cb(void *, u64 nsec, bool (*func)(void *), void *data);
24void nouveau_timer_alarm(void *, u32 nsec, struct nouveau_alarm *);
25
26#define NV_WAIT_DEFAULT 2000000000ULL
27#define nv_wait(o,a,m,v)                                                       \
28	nouveau_timer_wait_eq((o), NV_WAIT_DEFAULT, (a), (m), (v))
29#define nv_wait_ne(o,a,m,v)                                                    \
30	nouveau_timer_wait_ne((o), NV_WAIT_DEFAULT, (a), (m), (v))
31#define nv_wait_cb(o,c,d)                                                      \
32	nouveau_timer_wait_cb((o), NV_WAIT_DEFAULT, (c), (d))
33
34struct nouveau_timer {
35	struct nouveau_subdev base;
36	u64  (*read)(struct nouveau_timer *);
37	void (*alarm)(struct nouveau_timer *, u64 time, struct nouveau_alarm *);
38};
39
40static inline struct nouveau_timer *
41nouveau_timer(void *obj)
42{
43	return (void *)nv_device(obj)->subdev[NVDEV_SUBDEV_TIMER];
44}
45
46#define nouveau_timer_create(p,e,o,d)                                          \
47	nouveau_subdev_create_((p), (e), (o), 0, "PTIMER", "timer",            \
48			       sizeof(**d), (void **)d)
49#define nouveau_timer_destroy(p)                                               \
50	nouveau_subdev_destroy(&(p)->base)
51#define nouveau_timer_init(p)                                                  \
52	nouveau_subdev_init(&(p)->base)
53#define nouveau_timer_fini(p,s)                                                \
54	nouveau_subdev_fini(&(p)->base, (s))
55
56int nouveau_timer_create_(struct nouveau_object *, struct nouveau_engine *,
57			  struct nouveau_oclass *, int size, void **);
58
59extern struct nouveau_oclass nv04_timer_oclass;
60
61#endif
62