drivers/gpu/drm/nouveau/include/nvif/notify.h

   1 #ifndef __NVIF_NOTIFY_H__
   2 #define __NVIF_NOTIFY_H__
   3
   4 struct nvif_notify {
   5         struct nvif_object *object;
   6         int index;
   7
   8 #define NVIF_NOTIFY_USER 0
   9 #define NVIF_NOTIFY_WORK 1
  10         unsigned long flags;
  11         atomic_t putcnt;
  12         void (*dtor)(struct nvif_notify *);
  13 #define NVIF_NOTIFY_DROP 0
  14 #define NVIF_NOTIFY_KEEP 1
  15         int  (*func)(struct nvif_notify *);
  16
  17         /* this is const for a *very* good reason - the data might be on the
  18          * stack from an irq handler.  if you're not nvif/notify.c then you
  19          * should probably think twice before casting it away...
  20          */
  21         const void *data;
  22         u32 size;
  23         struct work_struct work;
  24 };
  25
  26 int  nvif_notify_init(struct nvif_object *, void (*dtor)(struct nvif_notify *),
  27                       int (*func)(struct nvif_notify *), bool work, u8 type,
  28                       void *data, u32 size, u32 reply, struct nvif_notify *);
  29 int  nvif_notify_fini(struct nvif_notify *);
  30 int  nvif_notify_get(struct nvif_notify *);
  31 int  nvif_notify_put(struct nvif_notify *);
  32 int  nvif_notify(const void *, u32, const void *, u32);
  33
  34 int  nvif_notify_new(struct nvif_object *, int (*func)(struct nvif_notify *),
  35                      bool work, u8 type, void *data, u32 size, u32 reply,
  36                      struct nvif_notify **);
  37 void nvif_notify_ref(struct nvif_notify *, struct nvif_notify **);
  38
  39 #endif