timer.h revision 5a5c7432bbbd2e318dff107b4ff960ab543a7cef 
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
13bool nouveau_timer_wait_eq(void *, u64 nsec, u32 addr, u32 mask, u32 data);
14bool nouveau_timer_wait_ne(void *, u64 nsec, u32 addr, u32 mask, u32 data);
15bool nouveau_timer_wait_cb(void *, u64 nsec, bool (*func)(void *), void *data);
16void nouveau_timer_alarm(void *, u32 nsec, struct nouveau_alarm *);
17
18#define NV_WAIT_DEFAULT 2000000000ULL
19#define nv_wait(o,a,m,v)                                                       \
20	nouveau_timer_wait_eq((o), NV_WAIT_DEFAULT, (a), (m), (v))
21#define nv_wait_ne(o,a,m,v)                                                    \
22	nouveau_timer_wait_ne((o), NV_WAIT_DEFAULT, (a), (m), (v))
23#define nv_wait_cb(o,a,m,v)                                                    \
24	nouveau_timer_wait_cb((o), NV_WAIT_DEFAULT, (a), (m), (v))
25
26struct nouveau_timer {
27	struct nouveau_subdev base;
28	u64  (*read)(struct nouveau_timer *);
29	void (*alarm)(struct nouveau_timer *, u32 time, struct nouveau_alarm *);
30};
31
32static inline struct nouveau_timer *
33nouveau_timer(void *obj)
34{
35	return (void *)nv_device(obj)->subdev[NVDEV_SUBDEV_TIMER];
36}
37
38#define nouveau_timer_create(p,e,o,d)                                          \
39	nouveau_subdev_create_((p), (e), (o), 0, "PTIMER", "timer",            \
40			       sizeof(**d), (void **)d)
41#define nouveau_timer_destroy(p)                                               \
42	nouveau_subdev_destroy(&(p)->base)
43#define nouveau_timer_init(p)                                                  \
44	nouveau_subdev_init(&(p)->base)
45#define nouveau_timer_fini(p,s)                                                \
46	nouveau_subdev_fini(&(p)->base, (s))
47
48int nouveau_timer_create_(struct nouveau_object *, struct nouveau_engine *,
49			  struct nouveau_oclass *, int size, void **);
50
51extern struct nouveau_oclass nv04_timer_oclass;
52
53#endif
54