drivers/gpu/drm/nouveau/include/nvkm/core/notify.h

   1 #ifndef __NVKM_NOTIFY_H__
   2 #define __NVKM_NOTIFY_H__
   3 #include <core/os.h>
   4 struct nvkm_object;
   5
   6 struct nvkm_notify {
   7         struct nvkm_event *event;
   8         struct list_head head;
   9 #define NVKM_NOTIFY_USER 0
  10 #define NVKM_NOTIFY_WORK 1
  11         unsigned long flags;
  12         int block;
  13 #define NVKM_NOTIFY_DROP 0
  14 #define NVKM_NOTIFY_KEEP 1
  15         int (*func)(struct nvkm_notify *);
  16
  17         /* set by nvkm_event ctor */
  18         u32 types;
  19         int index;
  20         u32 size;
  21
  22         struct work_struct work;
  23         /* this is const for a *very* good reason - the data might be on the
  24          * stack from an irq handler.  if you're not core/notify.c then you
  25          * should probably think twice before casting it away...
  26          */
  27         const void *data;
  28 };
  29
  30 int  nvkm_notify_init(struct nvkm_object *, struct nvkm_event *,
  31                       int (*func)(struct nvkm_notify *), bool work,
  32                       void *data, u32 size, u32 reply,
  33                       struct nvkm_notify *);
  34 void nvkm_notify_fini(struct nvkm_notify *);
  35 void nvkm_notify_get(struct nvkm_notify *);
  36 void nvkm_notify_put(struct nvkm_notify *);
  37 void nvkm_notify_send(struct nvkm_notify *, void *data, u32 size);
  38 #endif