1/*-
2 * Copyright (c) 2011 The FreeBSD Foundation
3 * All rights reserved.
4 *
5 * This software was developed by Konstantin Belousov under sponsorship from
6 * the FreeBSD Foundation.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $FreeBSD$
30 *
31 */
32
33#ifndef DRM_GEM_NAMES_H
34#define	DRM_GEM_NAMES_H
35
36#include <sys/types.h>
37#include <sys/lock.h>
38#include <sys/mutex.h>
39#include <sys/queue.h>
40
41struct drm_gem_name {
42	uint32_t name;
43	void *ptr;
44	LIST_ENTRY(drm_gem_name) link;
45};
46
47struct drm_gem_names {
48	struct mtx lock;
49	LIST_HEAD(drm_gem_names_head, drm_gem_name) *names_hash;
50	u_long hash_mask;
51	struct unrhdr *unr;
52};
53
54void drm_gem_names_init(struct drm_gem_names *names);
55void drm_gem_names_fini(struct drm_gem_names *names);
56uint32_t drm_gem_find_name(struct drm_gem_names *names, void *ptr);
57void *drm_gem_find_ptr(struct drm_gem_names *names, uint32_t name);
58void *drm_gem_name_ref(struct drm_gem_names *names, uint32_t name,
59    void (*ref)(void *));
60int drm_gem_name_create(struct drm_gem_names *names, void *obj, uint32_t *name);
61void drm_gem_names_foreach(struct drm_gem_names *names,
62    int (*f)(uint32_t, void *, void *), void *arg);
63void *drm_gem_names_remove(struct drm_gem_names *names, uint32_t name);
64
65#endif
66