diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/include/nvkm/subdev/timer.h')
-rw-r--r-- | drivers/gpu/drm/nouveau/include/nvkm/subdev/timer.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/timer.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/timer.h new file mode 100644 index 00000000000..36b5184e35e --- /dev/null +++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/timer.h @@ -0,0 +1,64 @@ +#ifndef __NOUVEAU_TIMER_H__ +#define __NOUVEAU_TIMER_H__ + +#include <core/subdev.h> +#include <core/device.h> + +struct nouveau_alarm { + struct list_head head; + u64 timestamp; + void (*func)(struct nouveau_alarm *); +}; + +static inline void +nouveau_alarm_init(struct nouveau_alarm *alarm, + void (*func)(struct nouveau_alarm *)) +{ + INIT_LIST_HEAD(&alarm->head); + alarm->func = func; +} + +bool nouveau_timer_wait_eq(void *, u64 nsec, u32 addr, u32 mask, u32 data); +bool nouveau_timer_wait_ne(void *, u64 nsec, u32 addr, u32 mask, u32 data); +bool nouveau_timer_wait_cb(void *, u64 nsec, bool (*func)(void *), void *data); +void nouveau_timer_alarm(void *, u32 nsec, struct nouveau_alarm *); +void nouveau_timer_alarm_cancel(void *, struct nouveau_alarm *); + +#define NV_WAIT_DEFAULT 2000000000ULL +#define nv_wait(o,a,m,v) \ + nouveau_timer_wait_eq((o), NV_WAIT_DEFAULT, (a), (m), (v)) +#define nv_wait_ne(o,a,m,v) \ + nouveau_timer_wait_ne((o), NV_WAIT_DEFAULT, (a), (m), (v)) +#define nv_wait_cb(o,c,d) \ + nouveau_timer_wait_cb((o), NV_WAIT_DEFAULT, (c), (d)) + +struct nouveau_timer { + struct nouveau_subdev base; + u64 (*read)(struct nouveau_timer *); + void (*alarm)(struct nouveau_timer *, u64 time, struct nouveau_alarm *); + void (*alarm_cancel)(struct nouveau_timer *, struct nouveau_alarm *); +}; + +static inline struct nouveau_timer * +nouveau_timer(void *obj) +{ + return (void *)nouveau_subdev(obj, NVDEV_SUBDEV_TIMER); +} + +#define nouveau_timer_create(p,e,o,d) \ + nouveau_subdev_create_((p), (e), (o), 0, "PTIMER", "timer", \ + sizeof(**d), (void **)d) +#define nouveau_timer_destroy(p) \ + nouveau_subdev_destroy(&(p)->base) +#define nouveau_timer_init(p) \ + nouveau_subdev_init(&(p)->base) +#define nouveau_timer_fini(p,s) \ + nouveau_subdev_fini(&(p)->base, (s)) + +int nouveau_timer_create_(struct nouveau_object *, struct nouveau_engine *, + struct nouveau_oclass *, int size, void **); + +extern struct nouveau_oclass nv04_timer_oclass; +extern struct nouveau_oclass gk20a_timer_oclass; + +#endif |