1#ifndef __NVKM_TIMER_H__
2#define __NVKM_TIMER_H__
3#include <core/subdev.h>
4
5struct nvkm_alarm {
6	struct list_head head;
7	u64 timestamp;
8	void (*func)(struct nvkm_alarm *);
9};
10
11static inline void
12nvkm_alarm_init(struct nvkm_alarm *alarm,
13		   void (*func)(struct nvkm_alarm *))
14{
15	INIT_LIST_HEAD(&alarm->head);
16	alarm->func = func;
17}
18
19bool nvkm_timer_wait_eq(void *, u64 nsec, u32 addr, u32 mask, u32 data);
20bool nvkm_timer_wait_ne(void *, u64 nsec, u32 addr, u32 mask, u32 data);
21bool nvkm_timer_wait_cb(void *, u64 nsec, bool (*func)(void *), void *data);
22void nvkm_timer_alarm(void *, u32 nsec, struct nvkm_alarm *);
23void nvkm_timer_alarm_cancel(void *, struct nvkm_alarm *);
24
25#define NV_WAIT_DEFAULT 2000000000ULL
26#define nv_wait(o,a,m,v)                                                       \
27	nvkm_timer_wait_eq((o), NV_WAIT_DEFAULT, (a), (m), (v))
28#define nv_wait_ne(o,a,m,v)                                                    \
29	nvkm_timer_wait_ne((o), NV_WAIT_DEFAULT, (a), (m), (v))
30#define nv_wait_cb(o,c,d)                                                      \
31	nvkm_timer_wait_cb((o), NV_WAIT_DEFAULT, (c), (d))
32
33struct nvkm_timer {
34	struct nvkm_subdev base;
35	u64  (*read)(struct nvkm_timer *);
36	void (*alarm)(struct nvkm_timer *, u64 time, struct nvkm_alarm *);
37	void (*alarm_cancel)(struct nvkm_timer *, struct nvkm_alarm *);
38};
39
40static inline struct nvkm_timer *
41nvkm_timer(void *obj)
42{
43	return (void *)nvkm_subdev(obj, NVDEV_SUBDEV_TIMER);
44}
45
46#define nvkm_timer_create(p,e,o,d)                                          \
47	nvkm_subdev_create_((p), (e), (o), 0, "PTIMER", "timer",            \
48			       sizeof(**d), (void **)d)
49#define nvkm_timer_destroy(p)                                               \
50	nvkm_subdev_destroy(&(p)->base)
51#define nvkm_timer_init(p)                                                  \
52	nvkm_subdev_init(&(p)->base)
53#define nvkm_timer_fini(p,s)                                                \
54	nvkm_subdev_fini(&(p)->base, (s))
55
56int nvkm_timer_create_(struct nvkm_object *, struct nvkm_engine *,
57			  struct nvkm_oclass *, int size, void **);
58
59extern struct nvkm_oclass nv04_timer_oclass;
60extern struct nvkm_oclass gk20a_timer_oclass;
61#endif
62