2 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
3 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
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:
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
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.
26 * Rickard E. (Rik) Faith <faith@valinux.com>
27 * Gareth Hughes <gareth@valinux.com>
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
34 /** @file drm_drawable.c
35 * This file implements ioctls to store information along with DRM drawables,
36 * such as the current set of cliprects for vblank-synced buffer swaps.
39 #include "dev/drm/drmP.h"
41 struct bsd_drm_drawable_info {
42 struct drm_drawable_info info;
44 RB_ENTRY(bsd_drm_drawable_info) tree;
48 drm_drawable_compare(struct bsd_drm_drawable_info *a,
49 struct bsd_drm_drawable_info *b)
51 if (a->handle > b->handle)
53 if (a->handle < b->handle)
58 RB_GENERATE_STATIC(drawable_tree, bsd_drm_drawable_info, tree,
59 drm_drawable_compare);
61 struct drm_drawable_info *
62 drm_get_drawable_info(struct drm_device *dev, int handle)
64 struct bsd_drm_drawable_info find, *result;
67 result = RB_FIND(drawable_tree, &dev->drw_head, &find);
72 int drm_adddraw(struct drm_device *dev, void *data, struct drm_file *file_priv)
74 drm_draw_t *draw = data;
75 struct bsd_drm_drawable_info *info;
77 info = drm_calloc(1, sizeof(struct bsd_drm_drawable_info),
82 info->handle = alloc_unr(dev->drw_unrhdr);
83 DRM_SPINLOCK(&dev->drw_lock);
84 RB_INSERT(drawable_tree, &dev->drw_head, info);
85 draw->handle = info->handle;
86 DRM_SPINUNLOCK(&dev->drw_lock);
88 DRM_DEBUG("%d\n", draw->handle);
93 int drm_rmdraw(struct drm_device *dev, void *data, struct drm_file *file_priv)
95 drm_draw_t *draw = (drm_draw_t *)data;
96 struct drm_drawable_info *info;
98 DRM_SPINLOCK(&dev->drw_lock);
99 info = drm_get_drawable_info(dev, draw->handle);
101 RB_REMOVE(drawable_tree, &dev->drw_head,
102 (struct bsd_drm_drawable_info *)info);
103 DRM_SPINUNLOCK(&dev->drw_lock);
104 free_unr(dev->drw_unrhdr, draw->handle);
105 drm_free(info, sizeof(struct bsd_drm_drawable_info),
109 DRM_SPINUNLOCK(&dev->drw_lock);
114 int drm_update_draw(struct drm_device *dev, void *data,
115 struct drm_file *file_priv)
117 struct drm_drawable_info *info;
118 struct drm_update_draw *update = (struct drm_update_draw *)data;
121 info = drm_get_drawable_info(dev, update->handle);
125 switch (update->type) {
126 case DRM_DRAWABLE_CLIPRECTS:
127 DRM_SPINLOCK(&dev->drw_lock);
128 if (update->num != info->num_rects) {
129 drm_free(info->rects,
130 sizeof(*info->rects) * info->num_rects,
135 if (update->num == 0) {
136 DRM_SPINUNLOCK(&dev->drw_lock);
139 if (info->rects == NULL) {
140 info->rects = drm_alloc(sizeof(*info->rects) *
141 update->num, DRM_MEM_DRAWABLE);
142 if (info->rects == NULL) {
143 DRM_SPINUNLOCK(&dev->drw_lock);
146 info->num_rects = update->num;
148 /* For some reason the pointer arg is unsigned long long. */
149 ret = copyin((void *)(intptr_t)update->data, info->rects,
150 sizeof(*info->rects) * info->num_rects);
151 DRM_SPINUNLOCK(&dev->drw_lock);
158 void drm_drawable_free_all(struct drm_device *dev)
160 struct bsd_drm_drawable_info *info, *next;
162 DRM_SPINLOCK(&dev->drw_lock);
163 for (info = RB_MIN(drawable_tree, &dev->drw_head);
164 info != NULL ; info = next) {
165 next = RB_NEXT(drawable_tree, &dev->drw_head, info);
166 RB_REMOVE(drawable_tree, &dev->drw_head,
167 (struct bsd_drm_drawable_info *)info);
168 DRM_SPINUNLOCK(&dev->drw_lock);
169 free_unr(dev->drw_unrhdr, info->handle);
170 drm_free(info, sizeof(struct bsd_drm_drawable_info),
172 DRM_SPINLOCK(&dev->drw_lock);
174 DRM_SPINUNLOCK(&dev->drw_lock);