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