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 *);
25void nouveau_timer_alarm_cancel(void *, struct nouveau_alarm *);
26
27#define NV_WAIT_DEFAULT 2000000000ULL
28#define nv_wait(o,a,m,v)                                                       \
29	nouveau_timer_wait_eq((o), NV_WAIT_DEFAULT, (a), (m), (v))
30#define nv_wait_ne(o,a,m,v)                                                    \
31	nouveau_timer_wait_ne((o), NV_WAIT_DEFAULT, (a), (m), (v))
32#define nv_wait_cb(o,c,d)                                                      \
33	nouveau_timer_wait_cb((o), NV_WAIT_DEFAULT, (c), (d))
34
35struct nouveau_timer {
36	struct nouveau_subdev base;
37	u64  (*read)(struct nouveau_timer *);
38	void (*alarm)(struct nouveau_timer *, u64 time, struct nouveau_alarm *);
39	void (*alarm_cancel)(struct nouveau_timer *, struct nouveau_alarm *);
40};
41
42static inline struct nouveau_timer *
43nouveau_timer(void *obj)
44{
45	return (void *)nv_device(obj)->subdev[NVDEV_SUBDEV_TIMER];
46}
47
48#define nouveau_timer_create(p,e,o,d)                                          \
49	nouveau_subdev_create_((p), (e), (o), 0, "PTIMER", "timer",            \
50			       sizeof(**d), (void **)d)
51#define nouveau_timer_destroy(p)                                               \
52	nouveau_subdev_destroy(&(p)->base)
53#define nouveau_timer_init(p)                                                  \
54	nouveau_subdev_init(&(p)->base)
55#define nouveau_timer_fini(p,s)                                                \
56	nouveau_subdev_fini(&(p)->base, (s))
57
58int nouveau_timer_create_(struct nouveau_object *, struct nouveau_engine *,
59			  struct nouveau_oclass *, int size, void **);
60
61extern struct nouveau_oclass nv04_timer_oclass;
62extern struct nouveau_oclass gk20a_timer_oclass;
63
64#endif
65