blob: f5b9b2480c149a9d62641f7dcd4ccc0c2d56db1a [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/**
Dave Airlieb5e89ed2005-09-25 14:28:13 +10002 * \file drm_drv.c
Linus Torvalds1da177e2005-04-16 15:20:36 -07003 * Generic driver template
4 *
5 * \author Rickard E. (Rik) Faith <faith@valinux.com>
6 * \author Gareth Hughes <gareth@valinux.com>
7 *
8 * To use this template, you must at least define the following (samples
9 * given for the MGA driver):
10 *
11 * \code
12 * #define DRIVER_AUTHOR "VA Linux Systems, Inc."
13 *
14 * #define DRIVER_NAME "mga"
15 * #define DRIVER_DESC "Matrox G200/G400"
16 * #define DRIVER_DATE "20001127"
17 *
18 * #define DRIVER_IOCTL_COUNT DRM_ARRAY_SIZE( mga_ioctls )
19 *
20 * #define drm_x mga_##x
21 * \endcode
22 */
23
24/*
25 * Created: Thu Nov 23 03:10:50 2000 by gareth@valinux.com
26 *
27 * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
28 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
29 * All Rights Reserved.
30 *
31 * Permission is hereby granted, free of charge, to any person obtaining a
32 * copy of this software and associated documentation files (the "Software"),
33 * to deal in the Software without restriction, including without limitation
34 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
35 * and/or sell copies of the Software, and to permit persons to whom the
36 * Software is furnished to do so, subject to the following conditions:
37 *
38 * The above copyright notice and this permission notice (including the next
39 * paragraph) shall be included in all copies or substantial portions of the
40 * Software.
41 *
42 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
43 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
44 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
45 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
46 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
47 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
48 * OTHER DEALINGS IN THE SOFTWARE.
49 */
50
51#include "drmP.h"
52#include "drm_core.h"
53
Dave Airliec94f7022005-07-07 21:03:38 +100054static int drm_version(struct inode *inode, struct file *filp,
55 unsigned int cmd, unsigned long arg);
56
Linus Torvalds1da177e2005-04-16 15:20:36 -070057/** Ioctl table */
Dave Airlieb5e89ed2005-09-25 14:28:13 +100058static drm_ioctl_desc_t drm_ioctls[] = {
Dave Airliea7a2cc32006-01-02 13:54:04 +110059 [DRM_IOCTL_NR(DRM_IOCTL_VERSION)] = {drm_version, 0},
60 [DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE)] = {drm_getunique, 0},
61 [DRM_IOCTL_NR(DRM_IOCTL_GET_MAGIC)] = {drm_getmagic, 0},
62 [DRM_IOCTL_NR(DRM_IOCTL_IRQ_BUSID)] = {drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY},
63 [DRM_IOCTL_NR(DRM_IOCTL_GET_MAP)] = {drm_getmap, 0},
64 [DRM_IOCTL_NR(DRM_IOCTL_GET_CLIENT)] = {drm_getclient, 0},
65 [DRM_IOCTL_NR(DRM_IOCTL_GET_STATS)] = {drm_getstats, 0},
66 [DRM_IOCTL_NR(DRM_IOCTL_SET_VERSION)] = {drm_setversion, DRM_MASTER|DRM_ROOT_ONLY},
67 [DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE)] = {drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
68 [DRM_IOCTL_NR(DRM_IOCTL_BLOCK)] = {drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
69 [DRM_IOCTL_NR(DRM_IOCTL_UNBLOCK)] = {drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
70 [DRM_IOCTL_NR(DRM_IOCTL_AUTH_MAGIC)] = {drm_authmagic, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
Linus Torvalds1da177e2005-04-16 15:20:36 -070071
Dave Airliea7a2cc32006-01-02 13:54:04 +110072 [DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP)] = {drm_addmap_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
73 [DRM_IOCTL_NR(DRM_IOCTL_RM_MAP)] = {drm_rmmap_ioctl, DRM_AUTH},
Linus Torvalds1da177e2005-04-16 15:20:36 -070074
Dave Airliea7a2cc32006-01-02 13:54:04 +110075 [DRM_IOCTL_NR(DRM_IOCTL_SET_SAREA_CTX)] = {drm_setsareactx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
76 [DRM_IOCTL_NR(DRM_IOCTL_GET_SAREA_CTX)] = {drm_getsareactx, DRM_AUTH},
Linus Torvalds1da177e2005-04-16 15:20:36 -070077
Dave Airlie11bab7d2006-04-05 18:13:13 +100078 [DRM_IOCTL_NR(DRM_IOCTL_ADD_CTX)] = {drm_addctx, DRM_AUTH|DRM_ROOT_ONLY},
79 [DRM_IOCTL_NR(DRM_IOCTL_RM_CTX)] = {drm_rmctx, DRM_AUTH|DRM_ROOT_ONLY},
Dave Airliea7a2cc32006-01-02 13:54:04 +110080 [DRM_IOCTL_NR(DRM_IOCTL_MOD_CTX)] = {drm_modctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
81 [DRM_IOCTL_NR(DRM_IOCTL_GET_CTX)] = {drm_getctx, DRM_AUTH},
82 [DRM_IOCTL_NR(DRM_IOCTL_SWITCH_CTX)] = {drm_switchctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
83 [DRM_IOCTL_NR(DRM_IOCTL_NEW_CTX)] = {drm_newctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
84 [DRM_IOCTL_NR(DRM_IOCTL_RES_CTX)] = {drm_resctx, DRM_AUTH},
Linus Torvalds1da177e2005-04-16 15:20:36 -070085
Dave Airliea7a2cc32006-01-02 13:54:04 +110086 [DRM_IOCTL_NR(DRM_IOCTL_ADD_DRAW)] = {drm_adddraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
87 [DRM_IOCTL_NR(DRM_IOCTL_RM_DRAW)] = {drm_rmdraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
Linus Torvalds1da177e2005-04-16 15:20:36 -070088
Dave Airliea7a2cc32006-01-02 13:54:04 +110089 [DRM_IOCTL_NR(DRM_IOCTL_LOCK)] = {drm_lock, DRM_AUTH},
90 [DRM_IOCTL_NR(DRM_IOCTL_UNLOCK)] = {drm_unlock, DRM_AUTH},
Linus Torvalds1da177e2005-04-16 15:20:36 -070091
Dave Airliea7a2cc32006-01-02 13:54:04 +110092 [DRM_IOCTL_NR(DRM_IOCTL_FINISH)] = {drm_noop, DRM_AUTH},
Linus Torvalds1da177e2005-04-16 15:20:36 -070093
Dave Airliea7a2cc32006-01-02 13:54:04 +110094 [DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS)] = {drm_addbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
95 [DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS)] = {drm_markbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
96 [DRM_IOCTL_NR(DRM_IOCTL_INFO_BUFS)] = {drm_infobufs, DRM_AUTH},
97 [DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS)] = {drm_mapbufs, DRM_AUTH},
98 [DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS)] = {drm_freebufs, DRM_AUTH},
Linus Torvalds1da177e2005-04-16 15:20:36 -070099 /* The DRM_IOCTL_DMA ioctl should be defined by the driver. */
Dave Airliea7a2cc32006-01-02 13:54:04 +1100100 [DRM_IOCTL_NR(DRM_IOCTL_DMA)] = {NULL, DRM_AUTH},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101
Dave Airliea7a2cc32006-01-02 13:54:04 +1100102 [DRM_IOCTL_NR(DRM_IOCTL_CONTROL)] = {drm_control, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103
104#if __OS_HAS_AGP
Dave Airliea7a2cc32006-01-02 13:54:04 +1100105 [DRM_IOCTL_NR(DRM_IOCTL_AGP_ACQUIRE)] = {drm_agp_acquire_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
106 [DRM_IOCTL_NR(DRM_IOCTL_AGP_RELEASE)] = {drm_agp_release_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
107 [DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE)] = {drm_agp_enable_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
108 [DRM_IOCTL_NR(DRM_IOCTL_AGP_INFO)] = {drm_agp_info_ioctl, DRM_AUTH},
109 [DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC)] = {drm_agp_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
110 [DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE)] = {drm_agp_free_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
111 [DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND)] = {drm_agp_bind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
112 [DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND)] = {drm_agp_unbind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700113#endif
114
Dave Airliea7a2cc32006-01-02 13:54:04 +1100115 [DRM_IOCTL_NR(DRM_IOCTL_SG_ALLOC)] = {drm_sg_alloc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
116 [DRM_IOCTL_NR(DRM_IOCTL_SG_FREE)] = {drm_sg_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117
Dave Airliea7a2cc32006-01-02 13:54:04 +1100118 [DRM_IOCTL_NR(DRM_IOCTL_WAIT_VBLANK)] = {drm_wait_vblank, 0},
=?utf-8?q?Michel_D=C3=A4nzer?=bea56792006-10-24 23:04:19 +1000119
120 [DRM_IOCTL_NR(DRM_IOCTL_UPDATE_DRAW)] = {drm_update_drawable_info, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121};
122
Dave Airlie3d774612006-08-07 20:07:43 +1000123#define DRIVER_IOCTL_COUNT ARRAY_SIZE( drm_ioctls )
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124
125/**
126 * Take down the DRM device.
127 *
128 * \param dev DRM device structure.
129 *
130 * Frees every resource in \p dev.
131 *
Dave Airlieaff138a2005-07-10 16:58:40 +1000132 * \sa drm_device
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133 */
Dave Airlie22eae942005-11-10 22:16:34 +1100134int drm_lastclose(drm_device_t * dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700135{
136 drm_magic_entry_t *pt, *next;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700137 drm_map_list_t *r_list;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138 drm_vma_entry_t *vma, *vma_next;
139 int i;
140
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000141 DRM_DEBUG("\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142
Dave Airlie22eae942005-11-10 22:16:34 +1100143 if (dev->driver->lastclose)
144 dev->driver->lastclose(dev);
145 DRM_DEBUG("driver lastclose completed\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146
147 if (dev->unique) {
148 drm_free(dev->unique, strlen(dev->unique) + 1, DRM_MEM_DRIVER);
149 dev->unique = NULL;
150 dev->unique_len = 0;
151 }
152
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000153 if (dev->irq_enabled)
154 drm_irq_uninstall(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155
=?utf-8?q?Michel_D=C3=A4nzer?=cdec2f82006-10-24 23:20:15 +1000156 /* Free drawable information memory */
157 for (i = 0; i < dev->drw_bitfield_length / sizeof(*dev->drw_bitfield);
158 i++) {
159 drm_drawable_info_t *info = drm_get_drawable_info(dev, i);
160
161 if (info) {
162 drm_free(info->rects, info->num_rects *
163 sizeof(drm_clip_rect_t), DRM_MEM_BUFS);
164 drm_free(info, sizeof(*info), DRM_MEM_BUFS);
165 }
166 }
167
Dave Airlie30e2fb12006-02-02 19:37:46 +1100168 mutex_lock(&dev->struct_mutex);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000169 del_timer(&dev->timer);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000171 /* Clear pid list */
Thomas Hellstrom0a0c7212006-08-16 09:21:56 +1000172 if (dev->magicfree.next) {
173 list_for_each_entry_safe(pt, next, &dev->magicfree, head) {
174 list_del(&pt->head);
175 drm_ht_remove_item(&dev->magiclist, &pt->hash_item);
176 drm_free(pt, sizeof(*pt), DRM_MEM_MAGIC);
177 }
Thomas Hellstrom1f4eccf2006-08-18 16:37:10 +1000178 drm_ht_remove(&dev->magiclist);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700179 }
180
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000181 /* Clear AGP information */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700182 if (drm_core_has_AGP(dev) && dev->agp) {
183 drm_agp_mem_t *entry;
184 drm_agp_mem_t *nexte;
185
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000186 /* Remove AGP resources, but leave dev->agp
187 intact until drv_cleanup is called. */
188 for (entry = dev->agp->memory; entry; entry = nexte) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189 nexte = entry->next;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000190 if (entry->bound)
191 drm_unbind_agp(entry->memory);
192 drm_free_agp(entry->memory, entry->pages);
193 drm_free(entry, sizeof(*entry), DRM_MEM_AGPLISTS);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194 }
195 dev->agp->memory = NULL;
196
Dave Airlie7ab98402005-07-10 16:56:52 +1000197 if (dev->agp->acquired)
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000198 drm_agp_release(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700199
200 dev->agp->acquired = 0;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000201 dev->agp->enabled = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700202 }
Dave Airlie836cf042005-07-10 19:27:04 +1000203 if (drm_core_check_feature(dev, DRIVER_SG) && dev->sg) {
204 drm_sg_cleanup(dev->sg);
205 dev->sg = NULL;
206 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000208 /* Clear vma list (only built for debugging) */
209 if (dev->vmalist) {
210 for (vma = dev->vmalist; vma; vma = vma_next) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211 vma_next = vma->next;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000212 drm_free(vma, sizeof(*vma), DRM_MEM_VMAS);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700213 }
214 dev->vmalist = NULL;
215 }
216
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000217 if (dev->maplist) {
Dave Airlie836cf042005-07-10 19:27:04 +1000218 while (!list_empty(&dev->maplist->head)) {
219 struct list_head *list = dev->maplist->head.next;
220 r_list = list_entry(list, drm_map_list_t, head);
221 drm_rmmap_locked(dev, r_list->map);
222 }
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000223 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700224
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000225 if (drm_core_check_feature(dev, DRIVER_DMA_QUEUE) && dev->queuelist) {
226 for (i = 0; i < dev->queue_count; i++) {
227 if (dev->queuelist[i]) {
228 drm_free(dev->queuelist[i],
229 sizeof(*dev->queuelist[0]),
230 DRM_MEM_QUEUES);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700231 dev->queuelist[i] = NULL;
232 }
233 }
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000234 drm_free(dev->queuelist,
235 dev->queue_slots * sizeof(*dev->queuelist),
236 DRM_MEM_QUEUES);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700237 dev->queuelist = NULL;
238 }
239 dev->queue_count = 0;
240
241 if (drm_core_check_feature(dev, DRIVER_HAVE_DMA))
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000242 drm_dma_takedown(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700243
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000244 if (dev->lock.hw_lock) {
245 dev->sigdata.lock = dev->lock.hw_lock = NULL; /* SHM removed */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246 dev->lock.filp = NULL;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000247 wake_up_interruptible(&dev->lock.lock_queue);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248 }
Dave Airlie30e2fb12006-02-02 19:37:46 +1100249 mutex_unlock(&dev->struct_mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250
Dave Airlie22eae942005-11-10 22:16:34 +1100251 DRM_DEBUG("lastclose completed\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700252 return 0;
253}
254
Linus Torvalds1da177e2005-04-16 15:20:36 -0700255/**
256 * Module initialization. Called via init_module at module load time, or via
257 * linux/init/main.c (this is not currently supported).
258 *
259 * \return zero on success or a negative number on failure.
260 *
261 * Initializes an array of drm_device structures, and attempts to
262 * initialize all available devices, using consecutive minors, registering the
263 * stubs and initializing the AGP device.
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000264 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700265 * Expands the \c DRIVER_PREINIT and \c DRIVER_POST_INIT macros before and
266 * after the initialization for driver customization.
267 */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000268int drm_init(struct drm_driver *driver)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700269{
270 struct pci_dev *pdev = NULL;
271 struct pci_device_id *pid;
272 int i;
273
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000274 DRM_DEBUG("\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700275
276 drm_mem_init();
277
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000278 for (i = 0; driver->pci_driver.id_table[i].vendor != 0; i++) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279 pid = (struct pci_device_id *)&driver->pci_driver.id_table[i];
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000280
281 pdev = NULL;
282 /* pass back in pdev to account for multiple identical cards */
283 while ((pdev =
284 pci_get_subsys(pid->vendor, pid->device, pid->subvendor,
285 pid->subdevice, pdev)) != NULL) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700286 /* stealth mode requires a manual probe */
287 pci_dev_get(pdev);
288 drm_get_dev(pdev, pid, driver);
289 }
290 }
291 return 0;
292}
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000293
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294EXPORT_SYMBOL(drm_init);
295
296/**
297 * Called via cleanup_module() at module unload time.
298 *
Dave Airlie22eae942005-11-10 22:16:34 +1100299 * Cleans up all DRM device, calling drm_lastclose().
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000300 *
Dave Airlieaff138a2005-07-10 16:58:40 +1000301 * \sa drm_init
Linus Torvalds1da177e2005-04-16 15:20:36 -0700302 */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000303static void drm_cleanup(drm_device_t * dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700304{
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000305 DRM_DEBUG("\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700306
307 if (!dev) {
308 DRM_ERROR("cleanup called no dev\n");
309 return;
310 }
311
Dave Airlie22eae942005-11-10 22:16:34 +1100312 drm_lastclose(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700313
Dave Airlie836cf042005-07-10 19:27:04 +1000314 if (dev->maplist) {
315 drm_free(dev->maplist, sizeof(*dev->maplist), DRM_MEM_MAPS);
316 dev->maplist = NULL;
Thomas Hellstrom1f4eccf2006-08-18 16:37:10 +1000317 drm_ht_remove(&dev->map_hash);
Dave Airlie836cf042005-07-10 19:27:04 +1000318 }
319
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000320 drm_ctxbitmap_cleanup(dev);
321
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322 if (drm_core_has_MTRR(dev) && drm_core_has_AGP(dev) &&
323 dev->agp && dev->agp->agp_mtrr >= 0) {
324 int retval;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000325 retval = mtrr_del(dev->agp->agp_mtrr,
326 dev->agp->agp_info.aper_base,
327 dev->agp->agp_info.aper_size * 1024 * 1024);
328 DRM_DEBUG("mtrr_del=%d\n", retval);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329 }
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000330
331 if (drm_core_has_AGP(dev) && dev->agp) {
332 drm_free(dev->agp, sizeof(*dev->agp), DRM_MEM_AGPLISTS);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700333 dev->agp = NULL;
334 }
335
Dave Airlie22eae942005-11-10 22:16:34 +1100336 if (dev->driver->unload)
337 dev->driver->unload(dev);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000338
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339 drm_put_head(&dev->primary);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000340 if (drm_put_dev(dev))
341 DRM_ERROR("Cannot unload module\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342}
343
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000344void drm_exit(struct drm_driver *driver)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700345{
346 int i;
347 drm_device_t *dev = NULL;
348 drm_head_t *head;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000349
350 DRM_DEBUG("\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351
352 for (i = 0; i < drm_cards_limit; i++) {
353 head = drm_heads[i];
354 if (!head)
355 continue;
356 if (!head->dev)
357 continue;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000358 if (head->dev->driver != driver)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359 continue;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000360 dev = head->dev;
Dave Airlieaab8df12006-01-11 22:32:51 +1100361 if (dev) {
362 /* release the pci driver */
363 if (dev->pdev)
364 pci_dev_put(dev->pdev);
365 drm_cleanup(dev);
366 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700367 }
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000368 DRM_INFO("Module unloaded\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700369}
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000370
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371EXPORT_SYMBOL(drm_exit);
372
373/** File operations structure */
Arjan van de Ven2b8693c2007-02-12 00:55:32 -0800374static const struct file_operations drm_stub_fops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700375 .owner = THIS_MODULE,
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000376 .open = drm_stub_open
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377};
378
379static int __init drm_core_init(void)
380{
381 int ret = -ENOMEM;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000382
383 drm_cards_limit =
384 (drm_cards_limit <
385 DRM_MAX_MINOR + 1 ? drm_cards_limit : DRM_MAX_MINOR + 1);
386 drm_heads =
387 drm_calloc(drm_cards_limit, sizeof(*drm_heads), DRM_MEM_STUB);
388 if (!drm_heads)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700389 goto err_p1;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000390
Linus Torvalds1da177e2005-04-16 15:20:36 -0700391 if (register_chrdev(DRM_MAJOR, "drm", &drm_stub_fops))
392 goto err_p1;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000393
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394 drm_class = drm_sysfs_create(THIS_MODULE, "drm");
395 if (IS_ERR(drm_class)) {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000396 printk(KERN_ERR "DRM: Error creating drm class.\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397 ret = PTR_ERR(drm_class);
398 goto err_p2;
399 }
400
Al Viro66600222005-09-28 22:32:57 +0100401 drm_proc_root = proc_mkdir("dri", NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402 if (!drm_proc_root) {
403 DRM_ERROR("Cannot create /proc/dri\n");
404 ret = -1;
405 goto err_p3;
406 }
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000407
408 DRM_INFO("Initialized %s %d.%d.%d %s\n",
409 CORE_NAME, CORE_MAJOR, CORE_MINOR, CORE_PATCHLEVEL, CORE_DATE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700410 return 0;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000411 err_p3:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700412 drm_sysfs_destroy(drm_class);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000413 err_p2:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700414 unregister_chrdev(DRM_MAJOR, "drm");
415 drm_free(drm_heads, sizeof(*drm_heads) * drm_cards_limit, DRM_MEM_STUB);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000416 err_p1:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700417 return ret;
418}
419
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000420static void __exit drm_core_exit(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421{
422 remove_proc_entry("dri", NULL);
423 drm_sysfs_destroy(drm_class);
424
425 unregister_chrdev(DRM_MAJOR, "drm");
426
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000427 drm_free(drm_heads, sizeof(*drm_heads) * drm_cards_limit, DRM_MEM_STUB);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700428}
429
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000430module_init(drm_core_init);
431module_exit(drm_core_exit);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432
433/**
434 * Get version information
435 *
436 * \param inode device inode.
437 * \param filp file pointer.
438 * \param cmd command.
439 * \param arg user argument, pointing to a drm_version structure.
440 * \return zero on success or negative number on failure.
441 *
442 * Fills in the version information in \p arg.
443 */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000444static int drm_version(struct inode *inode, struct file *filp,
445 unsigned int cmd, unsigned long arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700446{
447 drm_file_t *priv = filp->private_data;
448 drm_device_t *dev = priv->head->dev;
449 drm_version_t __user *argp = (void __user *)arg;
450 drm_version_t version;
Dave Airlie22eae942005-11-10 22:16:34 +1100451 int len;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700452
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000453 if (copy_from_user(&version, argp, sizeof(version)))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700454 return -EFAULT;
455
Dave Airlie22eae942005-11-10 22:16:34 +1100456 version.version_major = dev->driver->major;
457 version.version_minor = dev->driver->minor;
458 version.version_patchlevel = dev->driver->patchlevel;
459 DRM_COPY(version.name, dev->driver->name);
460 DRM_COPY(version.date, dev->driver->date);
461 DRM_COPY(version.desc, dev->driver->desc);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000462
463 if (copy_to_user(argp, &version, sizeof(version)))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700464 return -EFAULT;
465 return 0;
466}
467
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000468/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700469 * Called whenever a process performs an ioctl on /dev/drm.
470 *
471 * \param inode device inode.
472 * \param filp file pointer.
473 * \param cmd command.
474 * \param arg user argument.
475 * \return zero on success or negative number on failure.
476 *
477 * Looks up the ioctl function in the ::ioctls table, checking for root
478 * previleges if so required, and dispatches to the respective function.
479 */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000480int drm_ioctl(struct inode *inode, struct file *filp,
481 unsigned int cmd, unsigned long arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700482{
483 drm_file_t *priv = filp->private_data;
484 drm_device_t *dev = priv->head->dev;
485 drm_ioctl_desc_t *ioctl;
486 drm_ioctl_t *func;
487 unsigned int nr = DRM_IOCTL_NR(cmd);
488 int retcode = -EINVAL;
489
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000490 atomic_inc(&dev->ioctl_count);
491 atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700492 ++priv->ioctl_count;
493
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000494 DRM_DEBUG("pid=%d, cmd=0x%02x, nr=0x%02x, dev 0x%lx, auth=%d\n",
495 current->pid, cmd, nr,
496 (long)old_encode_dev(priv->head->device),
497 priv->authenticated);
498
Linus Torvalds1da177e2005-04-16 15:20:36 -0700499 if (nr < DRIVER_IOCTL_COUNT)
500 ioctl = &drm_ioctls[nr];
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000501 else if ((nr >= DRM_COMMAND_BASE)
502 && (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700503 ioctl = &dev->driver->ioctls[nr - DRM_COMMAND_BASE];
504 else
505 goto err_i1;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000506
Linus Torvalds1da177e2005-04-16 15:20:36 -0700507 func = ioctl->func;
508 /* is there a local override? */
509 if ((nr == DRM_IOCTL_NR(DRM_IOCTL_DMA)) && dev->driver->dma_ioctl)
510 func = dev->driver->dma_ioctl;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000511
512 if (!func) {
513 DRM_DEBUG("no function\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700514 retcode = -EINVAL;
Dave Airliea7a2cc32006-01-02 13:54:04 +1100515 } else if (((ioctl->flags & DRM_ROOT_ONLY) && !capable(CAP_SYS_ADMIN)) ||
516 ((ioctl->flags & DRM_AUTH) && !priv->authenticated) ||
517 ((ioctl->flags & DRM_MASTER) && !priv->master)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700518 retcode = -EACCES;
519 } else {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000520 retcode = func(inode, filp, cmd, arg);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700521 }
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000522
523 err_i1:
524 atomic_dec(&dev->ioctl_count);
525 if (retcode)
526 DRM_DEBUG("ret = %x\n", retcode);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700527 return retcode;
528}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700529
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000530EXPORT_SYMBOL(drm_ioctl);