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

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