1/*	$NetBSD: notify.h,v 1.3 2021/12/18 23:45:33 riastradh Exp $	*/
2
3/* SPDX-License-Identifier: MIT */
4#ifndef __NVKM_NOTIFY_H__
5#define __NVKM_NOTIFY_H__
6#include <core/os.h>
7struct nvkm_object;
8
9struct nvkm_notify {
10	struct nvkm_event *event;
11	struct list_head head;
12#define NVKM_NOTIFY_USER 0
13#define NVKM_NOTIFY_WORK 1
14	unsigned long flags;
15	int block;
16#define NVKM_NOTIFY_DROP 0
17#define NVKM_NOTIFY_KEEP 1
18	int (*func)(struct nvkm_notify *);
19
20	/* set by nvkm_event ctor */
21	u32 types;
22	int index;
23	u32 size;
24
25	struct work_struct work;
26	/* this is const for a *very* good reason - the data might be on the
27	 * stack from an irq handler.  if you're not core/notify.c then you
28	 * should probably think twice before casting it away...
29	 */
30	const void *data;
31};
32
33int  nvkm_notify_init(struct nvkm_object *, struct nvkm_event *,
34		      int (*func)(struct nvkm_notify *), bool work,
35		      void *data, u32 size, u32 reply,
36		      struct nvkm_notify *);
37void nvkm_notify_fini(struct nvkm_notify *);
38void nvkm_notify_get(struct nvkm_notify *);
39void nvkm_notify_put(struct nvkm_notify *);
40void nvkm_notify_send(struct nvkm_notify *, void *data, u32 size);
41#endif
42