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

   1/* SPDX-License-Identifier: MIT */
   2#ifndef __NVIF_NOTIFY_H__
   3#define __NVIF_NOTIFY_H__
   4
   5struct 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
  28int  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 *);
  31int  nvif_notify_dtor(struct nvif_notify *);
  32int  nvif_notify_get(struct nvif_notify *);
  33int  nvif_notify_put(struct nvif_notify *);
  34int  nvif_notify(const void *, u32, const void *, u32);
  35#endif
  36