1 #ifndef __NVKM_TIMER_H__ 2 #define __NVKM_TIMER_H__ 3 #include <core/subdev.h> 4 5 struct nvkm_alarm { 6 struct list_head head; 7 u64 timestamp; 8 void (*func)(struct nvkm_alarm *); 9 }; 10 11 static inline void 12 nvkm_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 19 bool nvkm_timer_wait_eq(void *, u64 nsec, u32 addr, u32 mask, u32 data); 20 bool nvkm_timer_wait_ne(void *, u64 nsec, u32 addr, u32 mask, u32 data); 21 bool nvkm_timer_wait_cb(void *, u64 nsec, bool (*func)(void *), void *data); 22 void nvkm_timer_alarm(void *, u32 nsec, struct nvkm_alarm *); 23 void 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 33 struct 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 40 static inline struct nvkm_timer * 41 nvkm_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 56 int nvkm_timer_create_(struct nvkm_object *, struct nvkm_engine *, 57 struct nvkm_oclass *, int size, void **); 58 59 extern struct nvkm_oclass nv04_timer_oclass; 60 extern struct nvkm_oclass gk20a_timer_oclass; 61 #endif 62