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

   1/* SPDX-License-Identifier: MIT */
   2#ifndef __NVKM_NOTIFY_H__
   3#define __NVKM_NOTIFY_H__
   4#include <core/os.h>
   5struct nvkm_object;
   6
   7struct nvkm_notify {
   8        struct nvkm_event *event;
   9        struct list_head head;
  10#define NVKM_NOTIFY_USER 0
  11#define NVKM_NOTIFY_WORK 1
  12        unsigned long flags;
  13        int block;
  14#define NVKM_NOTIFY_DROP 0
  15#define NVKM_NOTIFY_KEEP 1
  16        int (*func)(struct nvkm_notify *);
  17
  18        /* set by nvkm_event ctor */
  19        u32 types;
  20        int index;
  21        u32 size;
  22
  23        struct work_struct work;
  24        /* this is const for a *very* good reason - the data might be on the
  25         * stack from an irq handler.  if you're not core/notify.c then you
  26         * should probably think twice before casting it away...
  27         */
  28        const void *data;
  29};
  30
  31int  nvkm_notify_init(struct nvkm_object *, struct nvkm_event *,
  32                      int (*func)(struct nvkm_notify *), bool work,
  33                      void *data, u32 size, u32 reply,
  34                      struct nvkm_notify *);
  35void nvkm_notify_fini(struct nvkm_notify *);
  36void nvkm_notify_get(struct nvkm_notify *);
  37void nvkm_notify_put(struct nvkm_notify *);
  38void nvkm_notify_send(struct nvkm_notify *, void *data, u32 size);
  39#endif
  40