3 * Generic driver template
5 * \author Rickard E. (Rik) Faith <faith@valinux.com>
6 * \author Gareth Hughes <gareth@valinux.com>
8 * To use this template, you must at least define the following (samples
9 * given for the MGA driver):
12 * #define DRIVER_AUTHOR "VA Linux Systems, Inc."
14 * #define DRIVER_NAME "mga"
15 * #define DRIVER_DESC "Matrox G200/G400"
16 * #define DRIVER_DATE "20001127"
18 * #define drm_x mga_##x
23 * Created: Thu Nov 23 03:10:50 2000 by gareth@valinux.com
25 * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
26 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
27 * All Rights Reserved.
29 * Permission is hereby granted, free of charge, to any person obtaining a
30 * copy of this software and associated documentation files (the "Software"),
31 * to deal in the Software without restriction, including without limitation
32 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
33 * and/or sell copies of the Software, and to permit persons to whom the
34 * Software is furnished to do so, subject to the following conditions:
36 * The above copyright notice and this permission notice (including the next
37 * paragraph) shall be included in all copies or substantial portions of the
40 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
41 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
42 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
43 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
44 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
45 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
46 * OTHER DEALINGS IN THE SOFTWARE.
51 static void drm_cleanup(drm_device_t * dev);
52 int drm_fb_loaded = 0;
54 static int drm_version(struct inode *inode, struct file *filp,
55 unsigned int cmd, unsigned long arg);
58 static drm_ioctl_desc_t drm_ioctls[] = {
59 [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},
68 [DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE)] = {drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
69 [DRM_IOCTL_NR(DRM_IOCTL_BLOCK)] = {drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
70 [DRM_IOCTL_NR(DRM_IOCTL_UNBLOCK)] = {drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
71 [DRM_IOCTL_NR(DRM_IOCTL_AUTH_MAGIC)] = {drm_authmagic, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
73 [DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP)] = {drm_addmap_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
74 [DRM_IOCTL_NR(DRM_IOCTL_RM_MAP)] = {drm_rmmap_ioctl, DRM_AUTH},
76 [DRM_IOCTL_NR(DRM_IOCTL_SET_SAREA_CTX)] = {drm_setsareactx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
77 [DRM_IOCTL_NR(DRM_IOCTL_GET_SAREA_CTX)] = {drm_getsareactx, DRM_AUTH},
79 [DRM_IOCTL_NR(DRM_IOCTL_ADD_CTX)] = {drm_addctx, DRM_AUTH|DRM_ROOT_ONLY},
80 [DRM_IOCTL_NR(DRM_IOCTL_RM_CTX)] = {drm_rmctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
81 [DRM_IOCTL_NR(DRM_IOCTL_MOD_CTX)] = {drm_modctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
82 [DRM_IOCTL_NR(DRM_IOCTL_GET_CTX)] = {drm_getctx, DRM_AUTH},
83 [DRM_IOCTL_NR(DRM_IOCTL_SWITCH_CTX)] = {drm_switchctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
84 [DRM_IOCTL_NR(DRM_IOCTL_NEW_CTX)] = {drm_newctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
85 [DRM_IOCTL_NR(DRM_IOCTL_RES_CTX)] = {drm_resctx, DRM_AUTH},
87 [DRM_IOCTL_NR(DRM_IOCTL_ADD_DRAW)] = {drm_adddraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
88 [DRM_IOCTL_NR(DRM_IOCTL_RM_DRAW)] = {drm_rmdraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
90 [DRM_IOCTL_NR(DRM_IOCTL_LOCK)] = {drm_lock, DRM_AUTH},
91 [DRM_IOCTL_NR(DRM_IOCTL_UNLOCK)] = {drm_unlock, DRM_AUTH},
93 [DRM_IOCTL_NR(DRM_IOCTL_FINISH)] = {drm_noop, DRM_AUTH},
95 [DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS)] = {drm_addbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
96 [DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS)] = {drm_markbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
97 [DRM_IOCTL_NR(DRM_IOCTL_INFO_BUFS)] = {drm_infobufs, DRM_AUTH},
98 [DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS)] = {drm_mapbufs, DRM_AUTH},
99 [DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS)] = {drm_freebufs, DRM_AUTH},
100 /* The DRM_IOCTL_DMA ioctl should be defined by the driver. */
101 [DRM_IOCTL_NR(DRM_IOCTL_DMA)] = {NULL, DRM_AUTH},
103 [DRM_IOCTL_NR(DRM_IOCTL_CONTROL)] = {drm_control, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
106 [DRM_IOCTL_NR(DRM_IOCTL_AGP_ACQUIRE)] = {drm_agp_acquire_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
107 [DRM_IOCTL_NR(DRM_IOCTL_AGP_RELEASE)] = {drm_agp_release_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
108 [DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE)] = {drm_agp_enable_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
109 [DRM_IOCTL_NR(DRM_IOCTL_AGP_INFO)] = {drm_agp_info_ioctl, DRM_AUTH},
110 [DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC)] = {drm_agp_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
111 [DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE)] = {drm_agp_free_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
112 [DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND)] = {drm_agp_bind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
113 [DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND)] = {drm_agp_unbind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
116 [DRM_IOCTL_NR(DRM_IOCTL_SG_ALLOC)] = {drm_sg_alloc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
117 [DRM_IOCTL_NR(DRM_IOCTL_SG_FREE)] = {drm_sg_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
119 [DRM_IOCTL_NR(DRM_IOCTL_WAIT_VBLANK)] = {drm_wait_vblank, 0},
121 [DRM_IOCTL_NR(DRM_IOCTL_BUFOBJ)] = {drm_bo_ioctl, DRM_AUTH},
123 [DRM_IOCTL_NR(DRM_IOCTL_UPDATE_DRAW)] = {drm_update_drawable_info, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
126 [DRM_IOCTL_NR(DRM_IOCTL_MM_INIT)] = {drm_mm_init_ioctl,
128 [DRM_IOCTL_NR(DRM_IOCTL_MM_TAKEDOWN)] = {drm_mm_takedown_ioctl,
130 [DRM_IOCTL_NR(DRM_IOCTL_MM_LOCK)] = {drm_mm_lock_ioctl,
132 [DRM_IOCTL_NR(DRM_IOCTL_MM_UNLOCK)] = {drm_mm_unlock_ioctl,
135 [DRM_IOCTL_NR(DRM_IOCTL_FENCE_CREATE)] = {drm_fence_create_ioctl, DRM_AUTH},
136 [DRM_IOCTL_NR(DRM_IOCTL_FENCE_DESTROY)] = {drm_fence_destroy_ioctl, DRM_AUTH},
137 [DRM_IOCTL_NR(DRM_IOCTL_FENCE_REFERENCE)] = {drm_fence_reference_ioctl, DRM_AUTH},
138 [DRM_IOCTL_NR(DRM_IOCTL_FENCE_UNREFERENCE)] = {drm_fence_unreference_ioctl, DRM_AUTH},
139 [DRM_IOCTL_NR(DRM_IOCTL_FENCE_SIGNALED)] = {drm_fence_signaled_ioctl, DRM_AUTH},
140 [DRM_IOCTL_NR(DRM_IOCTL_FENCE_FLUSH)] = {drm_fence_flush_ioctl, DRM_AUTH},
141 [DRM_IOCTL_NR(DRM_IOCTL_FENCE_WAIT)] = {drm_fence_wait_ioctl, DRM_AUTH},
142 [DRM_IOCTL_NR(DRM_IOCTL_FENCE_EMIT)] = {drm_fence_emit_ioctl, DRM_AUTH},
143 [DRM_IOCTL_NR(DRM_IOCTL_FENCE_BUFFERS)] = {drm_fence_buffers_ioctl, DRM_AUTH},
147 #define DRM_CORE_IOCTL_COUNT ARRAY_SIZE( drm_ioctls )
151 * Take down the DRM device.
153 * \param dev DRM device structure.
155 * Frees every resource in \p dev.
159 int drm_lastclose(drm_device_t * dev)
161 drm_magic_entry_t *pt, *next;
162 drm_map_list_t *r_list, *list_t;
163 drm_vma_entry_t *vma, *vma_temp;
169 * We can't do much about this function failing.
172 drm_bo_driver_finish(dev);
174 if (dev->driver->lastclose)
175 dev->driver->lastclose(dev);
176 DRM_DEBUG("driver lastclose completed\n");
179 drm_free(dev->unique, strlen(dev->unique) + 1, DRM_MEM_DRIVER);
184 if (dev->irq_enabled)
185 drm_irq_uninstall(dev);
187 /* Free drawable information memory */
188 for (i = 0; i < dev->drw_bitfield_length / sizeof(*dev->drw_bitfield);
190 drm_drawable_info_t *info = drm_get_drawable_info(dev, i);
193 drm_free(info->rects, info->num_rects *
194 sizeof(drm_clip_rect_t), DRM_MEM_BUFS);
195 drm_free(info, sizeof(*info), DRM_MEM_BUFS);
199 mutex_lock(&dev->struct_mutex);
200 del_timer(&dev->timer);
203 drm_free(dev->unique, strlen(dev->unique) + 1, DRM_MEM_DRIVER);
208 if (dev->magicfree.next) {
209 list_for_each_entry_safe(pt, next, &dev->magicfree, head) {
211 drm_ht_remove_item(&dev->magiclist, &pt->hash_item);
212 drm_free(pt, sizeof(*pt), DRM_MEM_MAGIC);
214 drm_ht_remove(&dev->magiclist);
218 /* Clear AGP information */
219 if (drm_core_has_AGP(dev) && dev->agp) {
220 drm_agp_mem_t *entry, *tempe;
222 /* Remove AGP resources, but leave dev->agp
223 intact until drv_cleanup is called. */
224 list_for_each_entry_safe(entry, tempe, &dev->agp->memory, head) {
226 drm_unbind_agp(entry->memory);
227 drm_free_agp(entry->memory, entry->pages);
228 drm_free(entry, sizeof(*entry), DRM_MEM_AGPLISTS);
230 INIT_LIST_HEAD(&dev->agp->memory);
232 if (dev->agp->acquired)
233 drm_agp_release(dev);
235 dev->agp->acquired = 0;
236 dev->agp->enabled = 0;
238 if (drm_core_check_feature(dev, DRIVER_SG) && dev->sg) {
239 drm_sg_cleanup(dev->sg);
243 /* Clear vma list (only built for debugging) */
244 list_for_each_entry_safe(vma, vma_temp, &dev->vmalist, head) {
245 list_del(&vma->head);
246 drm_ctl_free(vma, sizeof(*vma), DRM_MEM_VMAS);
249 list_for_each_entry_safe(r_list, list_t, &dev->maplist, head) {
250 drm_rmmap_locked(dev, r_list->map);
254 if (drm_core_check_feature(dev, DRIVER_DMA_QUEUE) && dev->queuelist) {
255 for (i = 0; i < dev->queue_count; i++) {
257 if (dev->queuelist[i]) {
258 drm_free(dev->queuelist[i],
259 sizeof(*dev->queuelist[0]),
261 dev->queuelist[i] = NULL;
264 drm_free(dev->queuelist,
265 dev->queue_slots * sizeof(*dev->queuelist),
267 dev->queuelist = NULL;
269 dev->queue_count = 0;
271 if (drm_core_check_feature(dev, DRIVER_HAVE_DMA))
272 drm_dma_takedown(dev);
274 if (dev->lock.hw_lock) {
275 dev->sigdata.lock = dev->lock.hw_lock = NULL; /* SHM removed */
276 dev->lock.filp = NULL;
277 wake_up_interruptible(&dev->lock.lock_queue);
279 dev->dev_mapping = NULL;
280 mutex_unlock(&dev->struct_mutex);
282 DRM_DEBUG("lastclose completed\n");
286 void drm_cleanup_pci(struct pci_dev *pdev)
288 drm_device_t *dev = pci_get_drvdata(pdev);
290 pci_set_drvdata(pdev, NULL);
291 pci_release_regions(pdev);
295 EXPORT_SYMBOL(drm_cleanup_pci);
298 * Module initialization. Called via init_module at module load time, or via
299 * linux/init/main.c (this is not currently supported).
301 * \return zero on success or a negative number on failure.
303 * Initializes an array of drm_device structures, and attempts to
304 * initialize all available devices, using consecutive minors, registering the
305 * stubs and initializing the AGP device.
307 * Expands the \c DRIVER_PREINIT and \c DRIVER_POST_INIT macros before and
308 * after the initialization for driver customization.
310 int drm_init(struct drm_driver *driver,
311 struct pci_device_id *pciidlist)
313 struct pci_dev *pdev;
314 struct pci_device_id *pid;
319 for (i = 0; (pciidlist[i].vendor != 0) && !drm_fb_loaded; i++) {
323 /* pass back in pdev to account for multiple identical cards */
325 pci_get_subsys(pid->vendor, pid->device, pid->subvendor,
326 pid->subdevice, pdev))) {
327 /* is there already a driver loaded, or (short circuit saves work) */
328 /* does something like VesaFB have control of the memory region? */
329 if (pci_dev_driver(pdev)
330 || pci_request_regions(pdev, "DRM scan")) {
331 /* go into stealth mode */
336 /* no fbdev or vesadev, put things back and wait for normal probe */
337 pci_release_regions(pdev);
342 pci_register_driver(&driver->pci_driver);
344 for (i = 0; pciidlist[i].vendor != 0; i++) {
348 /* pass back in pdev to account for multiple identical cards */
350 pci_get_subsys(pid->vendor, pid->device,
351 pid->subvendor, pid->subdevice,
353 /* stealth mode requires a manual probe */
355 if ((rc = drm_get_dev(pdev, &pciidlist[i], driver))) {
361 DRM_INFO("Used old pci detect: framebuffer loaded\n");
365 EXPORT_SYMBOL(drm_init);
368 * Called via cleanup_module() at module unload time.
370 * Cleans up all DRM device, calling drm_lastclose().
374 static void drm_cleanup(drm_device_t * dev)
379 DRM_ERROR("cleanup called no dev\n");
384 drm_fence_manager_takedown(dev);
386 drm_ht_remove(&dev->map_hash);
387 drm_mm_takedown(&dev->offset_manager);
388 drm_ht_remove(&dev->object_hash);
391 pci_disable_device(dev->pdev);
393 drm_ctxbitmap_cleanup(dev);
395 if (drm_core_has_MTRR(dev) && drm_core_has_AGP(dev) && dev->agp
396 && dev->agp->agp_mtrr >= 0) {
398 retval = mtrr_del(dev->agp->agp_mtrr,
399 dev->agp->agp_info.aper_base,
400 dev->agp->agp_info.aper_size * 1024 * 1024);
401 DRM_DEBUG("mtrr_del=%d\n", retval);
404 if (drm_core_has_AGP(dev) && dev->agp) {
405 drm_free(dev->agp, sizeof(*dev->agp), DRM_MEM_AGPLISTS);
408 if (dev->driver->unload)
409 dev->driver->unload(dev);
411 drm_put_head(&dev->primary);
412 if (drm_put_dev(dev))
413 DRM_ERROR("Cannot unload module\n");
416 void drm_exit(struct drm_driver *driver)
419 drm_device_t *dev = NULL;
424 for (i = 0; i < drm_cards_limit; i++) {
430 if (head->dev->driver != driver)
434 /* release the pci driver */
436 pci_dev_put(dev->pdev);
441 pci_unregister_driver(&driver->pci_driver);
442 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,15))
445 DRM_INFO("Module unloaded\n");
447 EXPORT_SYMBOL(drm_exit);
449 /** File operations structure */
450 static const struct file_operations drm_stub_fops = {
451 .owner = THIS_MODULE,
452 .open = drm_stub_open
455 static int __init drm_core_init(void)
459 unsigned long avail_memctl_mem;
460 unsigned long max_memctl_mem;
465 * AGP only allows low / DMA32 memory ATM.
468 avail_memctl_mem = si.totalram - si.totalhigh;
474 max_memctl_mem = 1UL << (32 - PAGE_SHIFT);
475 max_memctl_mem = (max_memctl_mem / si.mem_unit) * PAGE_SIZE;
477 if (avail_memctl_mem >= max_memctl_mem)
478 avail_memctl_mem = max_memctl_mem;
480 drm_init_memctl(avail_memctl_mem/2, avail_memctl_mem*3/4, si.mem_unit);
484 (drm_cards_limit < DRM_MAX_MINOR + 1 ? drm_cards_limit : DRM_MAX_MINOR + 1);
485 drm_heads = drm_calloc(drm_cards_limit, sizeof(*drm_heads), DRM_MEM_STUB);
489 if (register_chrdev(DRM_MAJOR, "drm", &drm_stub_fops))
492 drm_class = drm_sysfs_create(THIS_MODULE, "drm");
493 if (IS_ERR(drm_class)) {
494 printk(KERN_ERR "DRM: Error creating drm class.\n");
495 ret = PTR_ERR(drm_class);
499 drm_proc_root = proc_mkdir("dri", NULL);
500 if (!drm_proc_root) {
501 DRM_ERROR("Cannot create /proc/dri\n");
508 DRM_INFO("Initialized %s %d.%d.%d %s\n",
510 CORE_MAJOR, CORE_MINOR, CORE_PATCHLEVEL, CORE_DATE);
513 drm_sysfs_destroy(drm_class);
515 unregister_chrdev(DRM_MAJOR, "drm");
516 drm_free(drm_heads, sizeof(*drm_heads) * drm_cards_limit, DRM_MEM_STUB);
521 static void __exit drm_core_exit(void)
523 remove_proc_entry("dri", NULL);
524 drm_sysfs_destroy(drm_class);
526 unregister_chrdev(DRM_MAJOR, "drm");
528 drm_free(drm_heads, sizeof(*drm_heads) * drm_cards_limit, DRM_MEM_STUB);
531 module_init(drm_core_init);
532 module_exit(drm_core_exit);
535 * Get version information
537 * \param inode device inode.
538 * \param filp file pointer.
539 * \param cmd command.
540 * \param arg user argument, pointing to a drm_version structure.
541 * \return zero on success or negative number on failure.
543 * Fills in the version information in \p arg.
545 static int drm_version(struct inode *inode, struct file *filp,
546 unsigned int cmd, unsigned long arg)
548 drm_file_t *priv = filp->private_data;
549 drm_device_t *dev = priv->head->dev;
550 drm_version_t __user *argp = (void __user *)arg;
551 drm_version_t version;
554 if (copy_from_user(&version, argp, sizeof(version)))
557 version.version_major = dev->driver->major;
558 version.version_minor = dev->driver->minor;
559 version.version_patchlevel = dev->driver->patchlevel;
560 DRM_COPY(version.name, dev->driver->name);
561 DRM_COPY(version.date, dev->driver->date);
562 DRM_COPY(version.desc, dev->driver->desc);
564 if (copy_to_user(argp, &version, sizeof(version)))
570 * Called whenever a process performs an ioctl on /dev/drm.
572 * \param inode device inode.
573 * \param filp file pointer.
574 * \param cmd command.
575 * \param arg user argument.
576 * \return zero on success or negative number on failure.
578 * Looks up the ioctl function in the ::ioctls table, checking for root
579 * previleges if so required, and dispatches to the respective function.
581 int drm_ioctl(struct inode *inode, struct file *filp,
582 unsigned int cmd, unsigned long arg)
584 drm_file_t *priv = filp->private_data;
585 drm_device_t *dev = priv->head->dev;
586 drm_ioctl_desc_t *ioctl;
588 unsigned int nr = DRM_IOCTL_NR(cmd);
589 int retcode = -EINVAL;
591 atomic_inc(&dev->ioctl_count);
592 atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]);
595 DRM_DEBUG("pid=%d, cmd=0x%02x, nr=0x%02x, dev 0x%lx, auth=%d\n",
596 current->pid, cmd, nr, (long)old_encode_dev(priv->head->device),
597 priv->authenticated);
599 if ((nr >= DRM_CORE_IOCTL_COUNT) &&
600 ((nr < DRM_COMMAND_BASE) || (nr >= DRM_COMMAND_END)))
602 if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END)
603 && (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls))
604 ioctl = &dev->driver->ioctls[nr - DRM_COMMAND_BASE];
605 else if ((nr >= DRM_COMMAND_END) || (nr < DRM_COMMAND_BASE))
606 ioctl = &drm_ioctls[nr];
611 /* is there a local override? */
612 if ((nr == DRM_IOCTL_NR(DRM_IOCTL_DMA)) && dev->driver->dma_ioctl)
613 func = dev->driver->dma_ioctl;
616 DRM_DEBUG("no function\n");
618 } else if (((ioctl->flags & DRM_ROOT_ONLY) && !capable(CAP_SYS_ADMIN)) ||
619 ((ioctl->flags & DRM_AUTH) && !priv->authenticated) ||
620 ((ioctl->flags & DRM_MASTER) && !priv->master)) {
623 retcode = func(inode, filp, cmd, arg);
626 atomic_dec(&dev->ioctl_count);
628 DRM_DEBUG("ret = %x\n", retcode);
631 EXPORT_SYMBOL(drm_ioctl);
633 int drm_wait_on(drm_device_t *dev, wait_queue_head_t *queue, int timeout,
634 int (*fn)(drm_device_t *dev, void *priv), void *priv)
636 DECLARE_WAITQUEUE(entry, current);
637 unsigned long end = jiffies + (timeout);
639 add_wait_queue(queue, &entry);
642 __set_current_state(TASK_INTERRUPTIBLE);
643 if ((*fn)(dev, priv))
645 if (time_after_eq(jiffies, end)) {
649 schedule_timeout((HZ/100 > 1) ? HZ/100 : 1);
650 if (signal_pending(current)) {
655 __set_current_state(TASK_RUNNING);
656 remove_wait_queue(queue, &entry);
659 EXPORT_SYMBOL(drm_wait_on);
661 drm_local_map_t *drm_getsarea(struct drm_device *dev)
663 drm_map_list_t *entry;
665 list_for_each_entry(entry, &dev->maplist, head) {
666 if (entry->map && entry->map->type == _DRM_SHM &&
667 (entry->map->flags & _DRM_CONTAINS_LOCK)) {
673 EXPORT_SYMBOL(drm_getsarea);