1/*	$NetBSD: drm_legacy_misc.c,v 1.3 2021/12/19 12:30:04 riastradh Exp $	*/
2
3/*
4 * \file drm_legacy_misc.c
5 * Misc legacy support functions.
6 *
7 * \author Rickard E. (Rik) Faith <faith@valinux.com>
8 * \author Gareth Hughes <gareth@valinux.com>
9 */
10
11/*
12 * Created: Tue Feb  2 08:37:54 1999 by faith@valinux.com
13 *
14 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
15 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
16 * All Rights Reserved.
17 *
18 * Permission is hereby granted, free of charge, to any person obtaining a
19 * copy of this software and associated documentation files (the "Software"),
20 * to deal in the Software without restriction, including without limitation
21 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
22 * and/or sell copies of the Software, and to permit persons to whom the
23 * Software is furnished to do so, subject to the following conditions:
24 *
25 * The above copyright notice and this permission notice (including the next
26 * paragraph) shall be included in all copies or substantial portions of the
27 * Software.
28 *
29 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
30 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
31 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
32 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
33 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
34 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
35 * OTHER DEALINGS IN THE SOFTWARE.
36 */
37
38#include <sys/cdefs.h>
39__KERNEL_RCSID(0, "$NetBSD: drm_legacy_misc.c,v 1.3 2021/12/19 12:30:04 riastradh Exp $");
40
41#include <drm/drm_agpsupport.h>
42#include <drm/drm_device.h>
43#include <drm/drm_drv.h>
44#include <drm/drm_irq.h>
45#include <drm/drm_print.h>
46
47#include "drm_internal.h"
48#include "drm_legacy.h"
49
50#include <linux/nbsd-namespace.h>
51
52void drm_legacy_init_members(struct drm_device *dev)
53{
54	INIT_LIST_HEAD(&dev->ctxlist);
55	INIT_LIST_HEAD(&dev->vmalist);
56	INIT_LIST_HEAD(&dev->maplist);
57	spin_lock_init(&dev->buf_lock);
58	mutex_init(&dev->ctxlist_mutex);
59}
60
61void drm_legacy_destroy_members(struct drm_device *dev)
62{
63	mutex_destroy(&dev->ctxlist_mutex);
64	spin_lock_destroy(&dev->buf_lock);
65}
66
67int drm_legacy_setup(struct drm_device * dev)
68{
69	int ret;
70
71	if (dev->driver->firstopen &&
72	    drm_core_check_feature(dev, DRIVER_LEGACY)) {
73		ret = dev->driver->firstopen(dev);
74		if (ret != 0)
75			return ret;
76	}
77
78	ret = drm_legacy_dma_setup(dev);
79	if (ret < 0)
80		return ret;
81
82
83	DRM_DEBUG("\n");
84	return 0;
85}
86
87void drm_legacy_dev_reinit(struct drm_device *dev)
88{
89	if (dev->irq_enabled)
90		drm_irq_uninstall(dev);
91
92	mutex_lock(&dev->struct_mutex);
93
94	drm_legacy_agp_clear(dev);
95
96	drm_legacy_sg_cleanup(dev);
97	drm_legacy_vma_flush(dev);
98	drm_legacy_dma_takedown(dev);
99
100	mutex_unlock(&dev->struct_mutex);
101
102	dev->sigdata.lock = NULL;
103
104	dev->context_flag = 0;
105	dev->last_context = 0;
106	dev->if_version = 0;
107
108	DRM_DEBUG("lastclose completed\n");
109}
110
111void drm_master_legacy_init(struct drm_master *master)
112{
113	spin_lock_init(&master->lock.spinlock);
114	DRM_INIT_WAITQUEUE(&master->lock.lock_queue, "drmlock");
115}
116