Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /** |
2 | * \file drm_stub.h | |
3 | * Stub support | |
4 | * | |
5 | * \author Rickard E. (Rik) Faith <faith@valinux.com> | |
6 | */ | |
7 | ||
8 | /* | |
9 | * Created: Fri Jan 19 10:48:35 2001 by faith@acm.org | |
10 | * | |
11 | * Copyright 2001 VA Linux Systems, Inc., Sunnyvale, California. | |
12 | * All Rights Reserved. | |
13 | * | |
14 | * Permission is hereby granted, free of charge, to any person obtaining a | |
15 | * copy of this software and associated documentation files (the "Software"), | |
16 | * to deal in the Software without restriction, including without limitation | |
17 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
18 | * and/or sell copies of the Software, and to permit persons to whom the | |
19 | * Software is furnished to do so, subject to the following conditions: | |
20 | * | |
21 | * The above copyright notice and this permission notice (including the next | |
22 | * paragraph) shall be included in all copies or substantial portions of the | |
23 | * Software. | |
24 | * | |
25 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
26 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
27 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
28 | * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
29 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
30 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | |
31 | * DEALINGS IN THE SOFTWARE. | |
32 | */ | |
33 | ||
34 | #include <linux/module.h> | |
35 | #include <linux/moduleparam.h> | |
5a0e3ad6 | 36 | #include <linux/slab.h> |
1da177e4 LT |
37 | #include "drmP.h" |
38 | #include "drm_core.h" | |
39 | ||
b5e89ed5 | 40 | unsigned int drm_debug = 0; /* 1 to enable debug output */ |
1da177e4 LT |
41 | EXPORT_SYMBOL(drm_debug); |
42 | ||
b5e89ed5 DA |
43 | MODULE_AUTHOR(CORE_AUTHOR); |
44 | MODULE_DESCRIPTION(CORE_DESC); | |
1da177e4 | 45 | MODULE_LICENSE("GPL and additional rights"); |
1da177e4 LT |
46 | MODULE_PARM_DESC(debug, "Enable debug output"); |
47 | ||
c0758146 | 48 | module_param_named(debug, drm_debug, int, 0600); |
1da177e4 | 49 | |
2c14f28b DA |
50 | struct idr drm_minors_idr; |
51 | ||
0650fd58 | 52 | struct class *drm_class; |
1da177e4 | 53 | struct proc_dir_entry *drm_proc_root; |
955b12de | 54 | struct dentry *drm_debugfs_root; |
4fefcb27 | 55 | void drm_ut_debug_printk(unsigned int request_level, |
56 | const char *prefix, | |
57 | const char *function_name, | |
58 | const char *format, ...) | |
59 | { | |
60 | va_list args; | |
1da177e4 | 61 | |
4fefcb27 | 62 | if (drm_debug & request_level) { |
63 | if (function_name) | |
64 | printk(KERN_DEBUG "[%s:%s], ", prefix, function_name); | |
65 | va_start(args, format); | |
66 | vprintk(format, args); | |
67 | va_end(args); | |
68 | } | |
69 | } | |
70 | EXPORT_SYMBOL(drm_ut_debug_printk); | |
2c14f28b DA |
71 | static int drm_minor_get_id(struct drm_device *dev, int type) |
72 | { | |
73 | int new_id; | |
74 | int ret; | |
75 | int base = 0, limit = 63; | |
76 | ||
f453ba04 DA |
77 | if (type == DRM_MINOR_CONTROL) { |
78 | base += 64; | |
79 | limit = base + 127; | |
80 | } else if (type == DRM_MINOR_RENDER) { | |
81 | base += 128; | |
82 | limit = base + 255; | |
83 | } | |
84 | ||
2c14f28b DA |
85 | again: |
86 | if (idr_pre_get(&drm_minors_idr, GFP_KERNEL) == 0) { | |
87 | DRM_ERROR("Out of memory expanding drawable idr\n"); | |
88 | return -ENOMEM; | |
89 | } | |
90 | mutex_lock(&dev->struct_mutex); | |
91 | ret = idr_get_new_above(&drm_minors_idr, NULL, | |
92 | base, &new_id); | |
93 | mutex_unlock(&dev->struct_mutex); | |
94 | if (ret == -EAGAIN) { | |
95 | goto again; | |
96 | } else if (ret) { | |
97 | return ret; | |
98 | } | |
99 | ||
100 | if (new_id >= limit) { | |
101 | idr_remove(&drm_minors_idr, new_id); | |
102 | return -EINVAL; | |
103 | } | |
104 | return new_id; | |
105 | } | |
106 | ||
7c1c2871 DA |
107 | struct drm_master *drm_master_create(struct drm_minor *minor) |
108 | { | |
109 | struct drm_master *master; | |
110 | ||
9a298b2a | 111 | master = kzalloc(sizeof(*master), GFP_KERNEL); |
7c1c2871 DA |
112 | if (!master) |
113 | return NULL; | |
114 | ||
115 | kref_init(&master->refcount); | |
116 | spin_lock_init(&master->lock.spinlock); | |
117 | init_waitqueue_head(&master->lock.lock_queue); | |
118 | drm_ht_create(&master->magiclist, DRM_MAGIC_HASH_ORDER); | |
119 | INIT_LIST_HEAD(&master->magicfree); | |
120 | master->minor = minor; | |
121 | ||
122 | list_add_tail(&master->head, &minor->master_list); | |
123 | ||
124 | return master; | |
125 | } | |
126 | ||
127 | struct drm_master *drm_master_get(struct drm_master *master) | |
128 | { | |
129 | kref_get(&master->refcount); | |
130 | return master; | |
131 | } | |
85bb0c37 | 132 | EXPORT_SYMBOL(drm_master_get); |
7c1c2871 DA |
133 | |
134 | static void drm_master_destroy(struct kref *kref) | |
135 | { | |
136 | struct drm_master *master = container_of(kref, struct drm_master, refcount); | |
137 | struct drm_magic_entry *pt, *next; | |
138 | struct drm_device *dev = master->minor->dev; | |
c1ff85d9 | 139 | struct drm_map_list *r_list, *list_temp; |
7c1c2871 DA |
140 | |
141 | list_del(&master->head); | |
142 | ||
143 | if (dev->driver->master_destroy) | |
144 | dev->driver->master_destroy(dev, master); | |
145 | ||
c1ff85d9 DA |
146 | list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head) { |
147 | if (r_list->master == master) { | |
148 | drm_rmmap_locked(dev, r_list->map); | |
149 | r_list = NULL; | |
150 | } | |
151 | } | |
152 | ||
7c1c2871 | 153 | if (master->unique) { |
9a298b2a | 154 | kfree(master->unique); |
7c1c2871 DA |
155 | master->unique = NULL; |
156 | master->unique_len = 0; | |
157 | } | |
158 | ||
6e35023f CW |
159 | kfree(dev->devname); |
160 | dev->devname = NULL; | |
161 | ||
7c1c2871 DA |
162 | list_for_each_entry_safe(pt, next, &master->magicfree, head) { |
163 | list_del(&pt->head); | |
164 | drm_ht_remove_item(&master->magiclist, &pt->hash_item); | |
9a298b2a | 165 | kfree(pt); |
7c1c2871 DA |
166 | } |
167 | ||
168 | drm_ht_remove(&master->magiclist); | |
169 | ||
9a298b2a | 170 | kfree(master); |
7c1c2871 DA |
171 | } |
172 | ||
173 | void drm_master_put(struct drm_master **master) | |
174 | { | |
175 | kref_put(&(*master)->refcount, drm_master_destroy); | |
176 | *master = NULL; | |
177 | } | |
85bb0c37 | 178 | EXPORT_SYMBOL(drm_master_put); |
7c1c2871 DA |
179 | |
180 | int drm_setmaster_ioctl(struct drm_device *dev, void *data, | |
181 | struct drm_file *file_priv) | |
182 | { | |
862302ff TH |
183 | int ret = 0; |
184 | ||
6b008426 JB |
185 | if (file_priv->is_master) |
186 | return 0; | |
187 | ||
7c1c2871 DA |
188 | if (file_priv->minor->master && file_priv->minor->master != file_priv->master) |
189 | return -EINVAL; | |
190 | ||
191 | if (!file_priv->master) | |
192 | return -EINVAL; | |
193 | ||
194 | if (!file_priv->minor->master && | |
195 | file_priv->minor->master != file_priv->master) { | |
196 | mutex_lock(&dev->struct_mutex); | |
197 | file_priv->minor->master = drm_master_get(file_priv->master); | |
6b008426 | 198 | file_priv->is_master = 1; |
862302ff TH |
199 | if (dev->driver->master_set) { |
200 | ret = dev->driver->master_set(dev, file_priv, false); | |
201 | if (unlikely(ret != 0)) { | |
202 | file_priv->is_master = 0; | |
203 | drm_master_put(&file_priv->minor->master); | |
204 | } | |
205 | } | |
5ad8b7d1 | 206 | mutex_unlock(&dev->struct_mutex); |
7c1c2871 DA |
207 | } |
208 | ||
209 | return 0; | |
210 | } | |
211 | ||
212 | int drm_dropmaster_ioctl(struct drm_device *dev, void *data, | |
213 | struct drm_file *file_priv) | |
214 | { | |
6b008426 | 215 | if (!file_priv->is_master) |
7c1c2871 | 216 | return -EINVAL; |
6b008426 | 217 | |
07f1c7a7 DA |
218 | if (!file_priv->minor->master) |
219 | return -EINVAL; | |
220 | ||
7c1c2871 | 221 | mutex_lock(&dev->struct_mutex); |
862302ff TH |
222 | if (dev->driver->master_drop) |
223 | dev->driver->master_drop(dev, file_priv, false); | |
7c1c2871 | 224 | drm_master_put(&file_priv->minor->master); |
6b008426 | 225 | file_priv->is_master = 0; |
7c1c2871 DA |
226 | mutex_unlock(&dev->struct_mutex); |
227 | return 0; | |
228 | } | |
229 | ||
dcdb1674 | 230 | int drm_fill_in_dev(struct drm_device *dev, |
b5e89ed5 DA |
231 | const struct pci_device_id *ent, |
232 | struct drm_driver *driver) | |
1da177e4 LT |
233 | { |
234 | int retcode; | |
235 | ||
bd1b331f | 236 | INIT_LIST_HEAD(&dev->filelist); |
7c158ace DA |
237 | INIT_LIST_HEAD(&dev->ctxlist); |
238 | INIT_LIST_HEAD(&dev->vmalist); | |
239 | INIT_LIST_HEAD(&dev->maplist); | |
c9a9c5e0 | 240 | INIT_LIST_HEAD(&dev->vblank_event_list); |
7c158ace | 241 | |
1da177e4 | 242 | spin_lock_init(&dev->count_lock); |
bea5679f | 243 | spin_lock_init(&dev->drw_lock); |
c9a9c5e0 | 244 | spin_lock_init(&dev->event_lock); |
b5e89ed5 | 245 | init_timer(&dev->timer); |
30e2fb18 DA |
246 | mutex_init(&dev->struct_mutex); |
247 | mutex_init(&dev->ctxlist_mutex); | |
1da177e4 | 248 | |
45ea5dcd DA |
249 | idr_init(&dev->drw_idr); |
250 | ||
8d153f71 | 251 | if (drm_ht_create(&dev->map_hash, 12)) { |
8d153f71 TH |
252 | return -ENOMEM; |
253 | } | |
836cf046 | 254 | |
1da177e4 LT |
255 | /* the DRM has 6 basic counters */ |
256 | dev->counters = 6; | |
b5e89ed5 DA |
257 | dev->types[0] = _DRM_STAT_LOCK; |
258 | dev->types[1] = _DRM_STAT_OPENS; | |
259 | dev->types[2] = _DRM_STAT_CLOSES; | |
260 | dev->types[3] = _DRM_STAT_IOCTLS; | |
261 | dev->types[4] = _DRM_STAT_LOCKS; | |
262 | dev->types[5] = _DRM_STAT_UNLOCKS; | |
1da177e4 LT |
263 | |
264 | dev->driver = driver; | |
b5e89ed5 | 265 | |
1da177e4 | 266 | if (drm_core_has_AGP(dev)) { |
cda17380 DA |
267 | if (drm_device_is_agp(dev)) |
268 | dev->agp = drm_agp_init(dev); | |
b5e89ed5 DA |
269 | if (drm_core_check_feature(dev, DRIVER_REQUIRE_AGP) |
270 | && (dev->agp == NULL)) { | |
271 | DRM_ERROR("Cannot initialize the agpgart module.\n"); | |
1da177e4 LT |
272 | retcode = -EINVAL; |
273 | goto error_out_unreg; | |
274 | } | |
275 | if (drm_core_has_MTRR(dev)) { | |
276 | if (dev->agp) | |
b5e89ed5 DA |
277 | dev->agp->agp_mtrr = |
278 | mtrr_add(dev->agp->agp_info.aper_base, | |
279 | dev->agp->agp_info.aper_size * | |
280 | 1024 * 1024, MTRR_TYPE_WRCOMB, 1); | |
1da177e4 LT |
281 | } |
282 | } | |
283 | ||
2716a02f | 284 | |
b5e89ed5 DA |
285 | retcode = drm_ctxbitmap_init(dev); |
286 | if (retcode) { | |
287 | DRM_ERROR("Cannot allocate memory for context bitmap.\n"); | |
1da177e4 LT |
288 | goto error_out_unreg; |
289 | } | |
290 | ||
673a394b EA |
291 | if (driver->driver_features & DRIVER_GEM) { |
292 | retcode = drm_gem_init(dev); | |
293 | if (retcode) { | |
294 | DRM_ERROR("Cannot initialize graphics execution " | |
295 | "manager (GEM)\n"); | |
296 | goto error_out_unreg; | |
297 | } | |
298 | } | |
299 | ||
1da177e4 | 300 | return 0; |
b5e89ed5 DA |
301 | |
302 | error_out_unreg: | |
22eae947 | 303 | drm_lastclose(dev); |
1da177e4 LT |
304 | return retcode; |
305 | } | |
306 | ||
1da177e4 | 307 | |
1da177e4 LT |
308 | /** |
309 | * Get a secondary minor number. | |
310 | * | |
311 | * \param dev device data structure | |
312 | * \param sec-minor structure to hold the assigned minor | |
313 | * \return negative number on failure. | |
314 | * | |
315 | * Search an empty entry and initialize it to the given parameters, and | |
316 | * create the proc init entry via proc_init(). This routines assigns | |
317 | * minor numbers to secondary heads of multi-headed cards | |
318 | */ | |
dcdb1674 | 319 | int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int type) |
1da177e4 | 320 | { |
2c14f28b | 321 | struct drm_minor *new_minor; |
1da177e4 | 322 | int ret; |
2c14f28b | 323 | int minor_id; |
1da177e4 LT |
324 | |
325 | DRM_DEBUG("\n"); | |
326 | ||
2c14f28b DA |
327 | minor_id = drm_minor_get_id(dev, type); |
328 | if (minor_id < 0) | |
329 | return minor_id; | |
330 | ||
331 | new_minor = kzalloc(sizeof(struct drm_minor), GFP_KERNEL); | |
332 | if (!new_minor) { | |
333 | ret = -ENOMEM; | |
334 | goto err_idr; | |
335 | } | |
336 | ||
337 | new_minor->type = type; | |
338 | new_minor->device = MKDEV(DRM_MAJOR, minor_id); | |
339 | new_minor->dev = dev; | |
340 | new_minor->index = minor_id; | |
7c1c2871 | 341 | INIT_LIST_HEAD(&new_minor->master_list); |
2c14f28b DA |
342 | |
343 | idr_replace(&drm_minors_idr, new_minor, minor_id); | |
344 | ||
345 | if (type == DRM_MINOR_LEGACY) { | |
346 | ret = drm_proc_init(new_minor, minor_id, drm_proc_root); | |
347 | if (ret) { | |
348 | DRM_ERROR("DRM: Failed to initialize /proc/dri.\n"); | |
349 | goto err_mem; | |
1da177e4 | 350 | } |
2c14f28b | 351 | } else |
955b12de BG |
352 | new_minor->proc_root = NULL; |
353 | ||
354 | #if defined(CONFIG_DEBUG_FS) | |
355 | ret = drm_debugfs_init(new_minor, minor_id, drm_debugfs_root); | |
356 | if (ret) { | |
156f5a78 | 357 | DRM_ERROR("DRM: Failed to initialize /sys/kernel/debug/dri.\n"); |
955b12de BG |
358 | goto err_g2; |
359 | } | |
360 | #endif | |
2c14f28b DA |
361 | |
362 | ret = drm_sysfs_device_add(new_minor); | |
363 | if (ret) { | |
364 | printk(KERN_ERR | |
365 | "DRM: Error sysfs_device_add.\n"); | |
366 | goto err_g2; | |
1da177e4 | 367 | } |
2c14f28b DA |
368 | *minor = new_minor; |
369 | ||
370 | DRM_DEBUG("new minor assigned %d\n", minor_id); | |
371 | return 0; | |
372 | ||
373 | ||
374 | err_g2: | |
375 | if (new_minor->type == DRM_MINOR_LEGACY) | |
376 | drm_proc_cleanup(new_minor, drm_proc_root); | |
377 | err_mem: | |
378 | kfree(new_minor); | |
379 | err_idr: | |
380 | idr_remove(&drm_minors_idr, minor_id); | |
381 | *minor = NULL; | |
1da177e4 LT |
382 | return ret; |
383 | } | |
b5e89ed5 | 384 | |
1da177e4 LT |
385 | /** |
386 | * Put a secondary minor number. | |
387 | * | |
388 | * \param sec_minor - structure to be released | |
389 | * \return always zero | |
390 | * | |
391 | * Cleans up the proc resources. Not legal for this to be the | |
392 | * last minor released. | |
393 | * | |
394 | */ | |
2c14f28b | 395 | int drm_put_minor(struct drm_minor **minor_p) |
1da177e4 | 396 | { |
2c14f28b | 397 | struct drm_minor *minor = *minor_p; |
673a394b | 398 | |
2c14f28b | 399 | DRM_DEBUG("release secondary minor %d\n", minor->index); |
b5e89ed5 | 400 | |
2c14f28b DA |
401 | if (minor->type == DRM_MINOR_LEGACY) |
402 | drm_proc_cleanup(minor, drm_proc_root); | |
955b12de BG |
403 | #if defined(CONFIG_DEBUG_FS) |
404 | drm_debugfs_cleanup(minor); | |
405 | #endif | |
406 | ||
2c14f28b | 407 | drm_sysfs_device_remove(minor); |
1da177e4 | 408 | |
2c14f28b | 409 | idr_remove(&drm_minors_idr, minor->index); |
b5e89ed5 | 410 | |
2c14f28b DA |
411 | kfree(minor); |
412 | *minor_p = NULL; | |
1da177e4 LT |
413 | return 0; |
414 | } | |
112b715e KH |
415 | |
416 | /** | |
417 | * Called via drm_exit() at module unload time or when pci device is | |
418 | * unplugged. | |
419 | * | |
420 | * Cleans up all DRM device, calling drm_lastclose(). | |
421 | * | |
422 | * \sa drm_init | |
423 | */ | |
424 | void drm_put_dev(struct drm_device *dev) | |
425 | { | |
ecca0683 | 426 | struct drm_driver *driver; |
112b715e KH |
427 | struct drm_map_list *r_list, *list_temp; |
428 | ||
429 | DRM_DEBUG("\n"); | |
430 | ||
431 | if (!dev) { | |
432 | DRM_ERROR("cleanup called no dev\n"); | |
433 | return; | |
434 | } | |
ecca0683 | 435 | driver = dev->driver; |
112b715e | 436 | |
112b715e KH |
437 | drm_lastclose(dev); |
438 | ||
439 | if (drm_core_has_MTRR(dev) && drm_core_has_AGP(dev) && | |
440 | dev->agp && dev->agp->agp_mtrr >= 0) { | |
441 | int retval; | |
442 | retval = mtrr_del(dev->agp->agp_mtrr, | |
443 | dev->agp->agp_info.aper_base, | |
444 | dev->agp->agp_info.aper_size * 1024 * 1024); | |
445 | DRM_DEBUG("mtrr_del=%d\n", retval); | |
446 | } | |
447 | ||
448 | if (dev->driver->unload) | |
449 | dev->driver->unload(dev); | |
450 | ||
451 | if (drm_core_has_AGP(dev) && dev->agp) { | |
9a298b2a | 452 | kfree(dev->agp); |
112b715e KH |
453 | dev->agp = NULL; |
454 | } | |
455 | ||
b78315f0 JB |
456 | drm_vblank_cleanup(dev); |
457 | ||
112b715e KH |
458 | list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head) |
459 | drm_rmmap(dev, r_list->map); | |
30ddbd94 BS |
460 | drm_ht_remove(&dev->map_hash); |
461 | ||
462 | drm_ctxbitmap_cleanup(dev); | |
112b715e KH |
463 | |
464 | if (drm_core_check_feature(dev, DRIVER_MODESET)) | |
465 | drm_put_minor(&dev->control); | |
466 | ||
467 | if (driver->driver_features & DRIVER_GEM) | |
468 | drm_gem_destroy(dev); | |
469 | ||
470 | drm_put_minor(&dev->primary); | |
471 | ||
472 | if (dev->devname) { | |
9a298b2a | 473 | kfree(dev->devname); |
112b715e KH |
474 | dev->devname = NULL; |
475 | } | |
9a298b2a | 476 | kfree(dev); |
112b715e KH |
477 | } |
478 | EXPORT_SYMBOL(drm_put_dev); |