Fix a recently introduced compile time error w/ IPSEC.
[dragonfly.git] / sys / dev / drm / drm_drawable.c
CommitLineData
7f3c3d6f
HT
1/*-
2 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
3 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
15 * Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 * OTHER DEALINGS IN THE SOFTWARE.
24 *
25 * Authors:
26 * Rickard E. (Rik) Faith <faith@valinux.com>
27 * Gareth Hughes <gareth@valinux.com>
28 *
29 * $DragonFly: src/sys/dev/drm/drm_drawable.c,v 1.1 2008/04/05 18:12:29 hasso Exp $
30 */
31
32/** @file drm_drawable.c
33 * This file implements ioctls to store information along with DRM drawables,
34 * such as the current set of cliprects for vblank-synced buffer swaps.
35 */
36
37#include "drmP.h"
38
39struct bsd_drm_drawable_info {
40 struct drm_drawable_info info;
41 int handle;
42 RB_ENTRY(bsd_drm_drawable_info) tree;
43};
44
45static int
46drm_drawable_compare(struct bsd_drm_drawable_info *a,
47 struct bsd_drm_drawable_info *b)
48{
49 if (a->handle > b->handle)
50 return 1;
51 if (a->handle < b->handle)
52 return -1;
53 return 0;
54}
55RB_PROTOTYPE_STATIC(drawable_tree, bsd_drm_drawable_info, tree,
56 drm_drawable_compare);
57RB_GENERATE_STATIC(drawable_tree, bsd_drm_drawable_info, tree,
58 drm_drawable_compare);
59
60struct drm_drawable_info *
61drm_get_drawable_info(drm_device_t *dev, int handle)
62{
63 struct bsd_drm_drawable_info find, *result;
64
65 find.handle = handle;
66 result = RB_FIND(drawable_tree, &dev->drw_head, &find);
67
68 return &result->info;
69}
70
71int drm_adddraw(drm_device_t *dev, void *data, struct drm_file *file_priv)
72{
73 drm_draw_t *draw = data;
74 struct bsd_drm_drawable_info *info;
75
76 info = drm_calloc(1, sizeof(struct bsd_drm_drawable_info),
77 DRM_MEM_DRAWABLE);
78 if (info == NULL)
79 return ENOMEM;
80
81#ifdef __FreeBSD__
82 info->handle = alloc_unr(dev->drw_unrhdr);
83#else
84 /*
85 * XXX Only valid for sizeof(int) == sizeof(void *)
86 */
87 info->handle = (int)info;
88#endif
89 DRM_SPINLOCK(&dev->drw_lock);
90 RB_INSERT(drawable_tree, &dev->drw_head, info);
91 draw->handle = info->handle;
92 DRM_SPINUNLOCK(&dev->drw_lock);
93
94 DRM_DEBUG("%d\n", draw->handle);
95
96 return 0;
97}
98
99int drm_rmdraw(drm_device_t *dev, void *data, struct drm_file *file_priv)
100{
101 drm_draw_t *draw = (drm_draw_t *)data;
102 struct drm_drawable_info *info;
103
104 DRM_SPINLOCK(&dev->drw_lock);
105 info = drm_get_drawable_info(dev, draw->handle);
106 if (info != NULL) {
107 RB_REMOVE(drawable_tree, &dev->drw_head,
108 (struct bsd_drm_drawable_info *)info);
109 DRM_SPINUNLOCK(&dev->drw_lock);
110#ifdef __FreeBSD__
111 free_unr(dev->drw_unrhdr, draw->handle);
112#endif
113 drm_free(info, sizeof(struct bsd_drm_drawable_info),
114 DRM_MEM_DRAWABLE);
115 return 0;
116 } else {
117 DRM_SPINUNLOCK(&dev->drw_lock);
118 return EINVAL;
119 }
120}
121
122int drm_update_draw(drm_device_t *dev, void *data, struct drm_file *file_priv)
123{
124 struct drm_drawable_info *info;
125 struct drm_update_draw *update = (struct drm_update_draw *)data;
126 int ret;
127
128 info = drm_get_drawable_info(dev, update->handle);
129 if (info == NULL)
130 return EINVAL;
131
132 switch (update->type) {
133 case DRM_DRAWABLE_CLIPRECTS:
134 DRM_SPINLOCK(&dev->drw_lock);
135 if (update->num != info->num_rects) {
136 drm_free(info->rects,
137 sizeof(*info->rects) * info->num_rects,
138 DRM_MEM_DRAWABLE);
139 info->rects = NULL;
140 info->num_rects = 0;
141 }
142 if (update->num == 0) {
143 DRM_SPINUNLOCK(&dev->drw_lock);
144 return 0;
145 }
146 if (info->rects == NULL) {
147 info->rects = drm_alloc(sizeof(*info->rects) *
148 update->num, DRM_MEM_DRAWABLE);
149 if (info->rects == NULL)
150 return ENOMEM;
151 info->num_rects = update->num;
152 }
153 /* For some reason the pointer arg is unsigned long long. */
154 ret = copyin((void *)(intptr_t)update->data, info->rects,
155 sizeof(*info->rects) * info->num_rects);
156 DRM_SPINUNLOCK(&dev->drw_lock);
157 return ret;
158 default:
159 return EINVAL;
160 }
161}