2 * Copyright 1999, 2000 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>
29 * $DragonFly: src/sys/dev/drm/drm_drv.c,v 1.1 2008/04/05 18:12:29 hasso Exp $
33 * The catch-all file for DRM device support, including module setup/teardown,
34 * open/close, and ioctl dispatch.
38 #include <machine/limits.h>
40 #include <sys/limits.h>
44 #include "drm_sarea.h"
46 #ifdef DRM_DEBUG_DEFAULT_ON
47 int drm_debug_flag = 1;
49 int drm_debug_flag = 0;
52 static int drm_load(drm_device_t *dev);
53 static void drm_unload(drm_device_t *dev);
54 static drm_pci_id_list_t *drm_find_description(int vendor, int device,
55 drm_pci_id_list_t *idlist);
57 #if defined(__FreeBSD__) || defined(__DragonFly__)
58 #define DRIVER_SOFTC(unit) \
59 ((drm_device_t *)devclass_get_softc(drm_devclass, unit))
61 MODULE_VERSION(drm, 1);
62 MODULE_DEPEND(drm, agp, 1, 1, 1);
63 MODULE_DEPEND(drm, pci, 1, 1, 1);
64 #if __FreeBSD_version > 502127
65 MODULE_DEPEND(drm, mem, 1, 1, 1);
67 #endif /* __FreeBSD__ || __DragonFly__ */
69 #if defined(__NetBSD__) || defined(__OpenBSD__)
70 #define DRIVER_SOFTC(unit) \
71 ((drm_device_t *)device_lookup(&drm_cd, unit))
72 #endif /* __NetBSD__ || __OpenBSD__ */
74 static drm_ioctl_desc_t drm_ioctls[256] = {
75 DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version, 0),
76 DRM_IOCTL_DEF(DRM_IOCTL_GET_UNIQUE, drm_getunique, 0),
77 DRM_IOCTL_DEF(DRM_IOCTL_GET_MAGIC, drm_getmagic, 0),
78 DRM_IOCTL_DEF(DRM_IOCTL_IRQ_BUSID, drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY),
79 DRM_IOCTL_DEF(DRM_IOCTL_GET_MAP, drm_getmap, 0),
80 DRM_IOCTL_DEF(DRM_IOCTL_GET_CLIENT, drm_getclient, 0),
81 DRM_IOCTL_DEF(DRM_IOCTL_GET_STATS, drm_getstats, 0),
82 DRM_IOCTL_DEF(DRM_IOCTL_SET_VERSION, drm_setversion, DRM_MASTER|DRM_ROOT_ONLY),
84 DRM_IOCTL_DEF(DRM_IOCTL_SET_UNIQUE, drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
85 DRM_IOCTL_DEF(DRM_IOCTL_BLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
86 DRM_IOCTL_DEF(DRM_IOCTL_UNBLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
87 DRM_IOCTL_DEF(DRM_IOCTL_AUTH_MAGIC, drm_authmagic, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
89 DRM_IOCTL_DEF(DRM_IOCTL_ADD_MAP, drm_addmap_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
90 DRM_IOCTL_DEF(DRM_IOCTL_RM_MAP, drm_rmmap_ioctl, DRM_AUTH),
92 DRM_IOCTL_DEF(DRM_IOCTL_SET_SAREA_CTX, drm_setsareactx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
93 DRM_IOCTL_DEF(DRM_IOCTL_GET_SAREA_CTX, drm_getsareactx, DRM_AUTH),
95 DRM_IOCTL_DEF(DRM_IOCTL_ADD_CTX, drm_addctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
96 DRM_IOCTL_DEF(DRM_IOCTL_RM_CTX, drm_rmctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
97 DRM_IOCTL_DEF(DRM_IOCTL_MOD_CTX, drm_modctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
98 DRM_IOCTL_DEF(DRM_IOCTL_GET_CTX, drm_getctx, DRM_AUTH),
99 DRM_IOCTL_DEF(DRM_IOCTL_SWITCH_CTX, drm_switchctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
100 DRM_IOCTL_DEF(DRM_IOCTL_NEW_CTX, drm_newctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
101 DRM_IOCTL_DEF(DRM_IOCTL_RES_CTX, drm_resctx, DRM_AUTH),
103 DRM_IOCTL_DEF(DRM_IOCTL_ADD_DRAW, drm_adddraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
104 DRM_IOCTL_DEF(DRM_IOCTL_RM_DRAW, drm_rmdraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
106 DRM_IOCTL_DEF(DRM_IOCTL_LOCK, drm_lock, DRM_AUTH),
107 DRM_IOCTL_DEF(DRM_IOCTL_UNLOCK, drm_unlock, DRM_AUTH),
108 DRM_IOCTL_DEF(DRM_IOCTL_FINISH, drm_noop, DRM_AUTH),
110 DRM_IOCTL_DEF(DRM_IOCTL_ADD_BUFS, drm_addbufs_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
111 DRM_IOCTL_DEF(DRM_IOCTL_MARK_BUFS, drm_markbufs, DRM_AUTH|DRM_MASTER),
112 DRM_IOCTL_DEF(DRM_IOCTL_INFO_BUFS, drm_infobufs, DRM_AUTH),
113 DRM_IOCTL_DEF(DRM_IOCTL_MAP_BUFS, drm_mapbufs, DRM_AUTH),
114 DRM_IOCTL_DEF(DRM_IOCTL_FREE_BUFS, drm_freebufs, DRM_AUTH),
115 DRM_IOCTL_DEF(DRM_IOCTL_DMA, drm_dma, DRM_AUTH),
117 DRM_IOCTL_DEF(DRM_IOCTL_CONTROL, drm_control, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
119 DRM_IOCTL_DEF(DRM_IOCTL_AGP_ACQUIRE, drm_agp_acquire_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
120 DRM_IOCTL_DEF(DRM_IOCTL_AGP_RELEASE, drm_agp_release_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
121 DRM_IOCTL_DEF(DRM_IOCTL_AGP_ENABLE, drm_agp_enable_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
122 DRM_IOCTL_DEF(DRM_IOCTL_AGP_INFO, drm_agp_info_ioctl, DRM_AUTH),
123 DRM_IOCTL_DEF(DRM_IOCTL_AGP_ALLOC, drm_agp_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
124 DRM_IOCTL_DEF(DRM_IOCTL_AGP_FREE, drm_agp_free_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
125 DRM_IOCTL_DEF(DRM_IOCTL_AGP_BIND, drm_agp_bind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
126 DRM_IOCTL_DEF(DRM_IOCTL_AGP_UNBIND, drm_agp_unbind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
128 DRM_IOCTL_DEF(DRM_IOCTL_SG_ALLOC, drm_sg_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
129 DRM_IOCTL_DEF(DRM_IOCTL_SG_FREE, drm_sg_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
131 DRM_IOCTL_DEF(DRM_IOCTL_WAIT_VBLANK, drm_wait_vblank, 0),
132 DRM_IOCTL_DEF(DRM_IOCTL_UPDATE_DRAW, drm_update_draw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
135 #if defined(__FreeBSD__) || defined(__DragonFly__)
137 static struct cdevsw drm_cdevsw = {
138 #if __FreeBSD_version >= 502103
139 .d_version = D_VERSION,
142 .d_close = drm_close,
144 .d_ioctl = drm_ioctl,
148 #if __FreeBSD_version >= 502103
149 .d_flags = D_TRACKCLOSE | D_NEEDGIANT,
152 .d_flags = D_TRACKCLOSE,
154 #if __FreeBSD_version < 500000
158 #else /* __FreeBSD__ */
159 static struct dev_ops drm_cdevsw = {
160 { "drm", 145, D_TRACKCLOSE },
162 .d_close = drm_close,
164 .d_ioctl = drm_ioctl,
168 #endif /* !__FreeBSD__ */
170 int drm_probe(device_t dev, drm_pci_id_list_t *idlist)
172 drm_pci_id_list_t *id_entry;
174 #if __FreeBSD_version < 700010
177 if (!strcmp(device_get_name(dev), "drmsub"))
178 realdev = device_get_parent(dev);
181 vendor = pci_get_vendor(realdev);
182 device = pci_get_device(realdev);
184 vendor = pci_get_vendor(dev);
185 device = pci_get_device(dev);
188 id_entry = drm_find_description(vendor, device, idlist);
189 if (id_entry != NULL) {
190 device_set_desc(dev, id_entry->name);
197 int drm_attach(device_t nbdev, drm_pci_id_list_t *idlist)
200 drm_pci_id_list_t *id_entry;
203 unit = device_get_unit(nbdev);
204 dev = device_get_softc(nbdev);
206 #if __FreeBSD_version < 700010
207 if (!strcmp(device_get_name(nbdev), "drmsub"))
208 dev->device = device_get_parent(nbdev);
215 dev_ops_add(&drm_cdevsw, -1, unit);
217 dev->devnode = make_dev(&drm_cdevsw,
223 #if __FreeBSD_version >= 500000
224 mtx_init(&dev->dev_lock, "drm device", NULL, MTX_DEF);
225 mtx_init(&dev->drw_lock, "drmdrw", NULL, MTX_DEF);
226 #elif defined(__DragonFly__)
227 DRM_SPININIT(&dev->dev_lock, "drm device");
228 DRM_SPININIT(&dev->drw_lock, "drmdrw");
231 id_entry = drm_find_description(pci_get_vendor(dev->device),
232 pci_get_device(dev->device), idlist);
233 dev->id_entry = id_entry;
235 return drm_load(dev);
238 int drm_detach(device_t dev)
240 drm_unload(device_get_softc(dev));
245 #define DRM_DEV_NAME "drm"
248 devclass_t drm_devclass;
250 #elif defined(__NetBSD__) || defined(__OpenBSD__)
252 static struct cdevsw drm_cdevsw = {
268 #if defined(__NetBSD__) && __NetBSD_Version__ >= 106080000
269 MOD_DEV("drm", DRIVER_NAME, NULL, -1, &drm_cdevsw, CDEV_MAJOR);
271 MOD_DEV("drm", LM_DT_CHAR, CDEV_MAJOR, &drm_cdevsw);
274 int drm_lkmentry(struct lkm_table *lkmtp, int cmd, int ver);
275 static int drm_lkmhandle(struct lkm_table *lkmtp, int cmd);
277 int drm_modprobe(void);
278 int drm_probe(struct pci_attach_args *pa);
279 void drm_attach(struct pci_attach_args *pa, dev_t kdev);
281 int drm_lkmentry(struct lkm_table *lkmtp, int cmd, int ver) {
282 DISPATCH(lkmtp, cmd, ver, drm_lkmhandle, drm_lkmhandle, drm_lkmhandle);
285 static int drm_lkmhandle(struct lkm_table *lkmtp, int cmd)
291 if (lkmexists(lkmtp))
314 int drm_modprobe(void)
316 struct pci_attach_args pa;
319 error = pci_find_device(&pa, drm_probe, idlist);
326 int drm_probe(struct pci_attach_args *pa, drm_pci_id_list_t idlist)
329 drm_pci_id_list_t *id_entry;
331 id_entry = drm_find_description(PCI_VENDOR(pa->pa_id),
332 PCI_PRODUCT(pa->pa_id), idlist);
333 if (id_entry != NULL) {
340 void drm_attach(struct pci_attach_args *pa, dev_t kdev,
341 drm_pci_id_list_t *idlist)
345 drm_pci_id_list_t *id_entry;
347 config_makeroom(kdev, &drm_cd);
348 drm_cd.cd_devs[(kdev)] = malloc(sizeof(drm_device_t), M_DRM, M_WAITOK);
349 dev = DRIVER_SOFTC(kdev);
351 memset(dev, 0, sizeof(drm_device_t));
352 memcpy(&dev->pa, pa, sizeof(dev->pa));
354 dev->irq = pa->pa_intrline;
356 dev->pci_bus = pa->pa_bus;
357 dev->pci_slot = pa->pa_device;
358 dev->pci_func = pa->pa_function;
359 dev->dma_tag = pa->pa_dmat;
361 id_entry = drm_find_description(PCI_VENDOR(pa->pa_id),
362 PCI_PRODUCT(pa->pa_id), idlist);
363 dev->driver.pci_id_entry = id_entry;
365 DRM_INFO("%s", id_entry->name);
369 int drm_detach(struct device *self, int flags)
371 drm_unload((drm_device_t *)self);
375 int drm_activate(struct device *self, enum devact act)
382 case DVACT_DEACTIVATE:
388 #endif /* __NetBSD__ || __OpenBSD__ */
390 drm_pci_id_list_t *drm_find_description(int vendor, int device,
391 drm_pci_id_list_t *idlist)
395 for (i = 0; idlist[i].vendor != 0; i++) {
396 if ((idlist[i].vendor == vendor) &&
397 (idlist[i].device == device)) {
404 static int drm_firstopen(drm_device_t *dev)
406 drm_local_map_t *map;
409 DRM_SPINLOCK_ASSERT(&dev->dev_lock);
411 /* prebuild the SAREA */
412 i = drm_addmap(dev, 0, SAREA_MAX, _DRM_SHM,
413 _DRM_CONTAINS_LOCK, &map);
417 if (dev->driver.firstopen)
418 dev->driver.firstopen(dev);
422 if (dev->driver.use_dma) {
423 i = drm_dma_setup(dev);
428 for ( i = 0 ; i < DRM_HASH_SIZE ; i++ ) {
429 dev->magiclist[i].head = NULL;
430 dev->magiclist[i].tail = NULL;
433 dev->lock.lock_queue = 0;
434 dev->irq_enabled = 0;
435 dev->context_flag = 0;
436 dev->last_context = 0;
439 #if defined(__FreeBSD__) || defined(__DragonFly__)
440 dev->buf_sigio = NULL;
441 #elif defined(__NetBSD__) || defined(__OpenBSD__)
450 static int drm_lastclose(drm_device_t *dev)
452 drm_magic_entry_t *pt, *next;
453 drm_local_map_t *map, *mapsave;
456 DRM_SPINLOCK_ASSERT(&dev->dev_lock);
460 if (dev->driver.lastclose != NULL)
461 dev->driver.lastclose(dev);
463 if (dev->irq_enabled)
464 drm_irq_uninstall(dev);
467 free(dev->unique, M_DRM);
472 for ( i = 0 ; i < DRM_HASH_SIZE ; i++ ) {
473 for ( pt = dev->magiclist[i].head ; pt ; pt = next ) {
477 dev->magiclist[i].head = dev->magiclist[i].tail = NULL;
480 /* Clear AGP information */
482 drm_agp_mem_t *entry;
483 drm_agp_mem_t *nexte;
485 /* Remove AGP resources, but leave dev->agp intact until
486 * drm_unload is called.
488 for ( entry = dev->agp->memory ; entry ; entry = nexte ) {
491 drm_agp_unbind_memory(entry->handle);
492 drm_agp_free_memory(entry->handle);
495 dev->agp->memory = NULL;
497 if (dev->agp->acquired)
498 drm_agp_release(dev);
500 dev->agp->acquired = 0;
501 dev->agp->enabled = 0;
503 if (dev->sg != NULL) {
504 drm_sg_cleanup(dev->sg);
508 TAILQ_FOREACH_SAFE(map, &dev->maplist, link, mapsave) {
509 if (!(map->flags & _DRM_DRIVER))
513 drm_dma_takedown(dev);
514 if ( dev->lock.hw_lock ) {
515 dev->lock.hw_lock = NULL; /* SHM removed */
516 dev->lock.file_priv = NULL;
517 DRM_WAKEUP_INT((void *)&dev->lock.lock_queue);
523 static int drm_load(drm_device_t *dev)
529 dev->irq = pci_get_irq(dev->device);
530 #if defined(__FreeBSD__) && __FreeBSD_version >= 700053
531 dev->pci_domain = pci_get_domain(dev->device);
535 dev->pci_bus = pci_get_bus(dev->device);
536 dev->pci_slot = pci_get_slot(dev->device);
537 dev->pci_func = pci_get_function(dev->device);
539 dev->pci_vendor = pci_get_vendor(dev->device);
540 dev->pci_device = pci_get_device(dev->device);
542 TAILQ_INIT(&dev->maplist);
545 #if defined(__FreeBSD__) || defined(__DragonFly__)
546 drm_sysctl_init(dev);
548 TAILQ_INIT(&dev->files);
551 dev->types[0] = _DRM_STAT_LOCK;
552 dev->types[1] = _DRM_STAT_OPENS;
553 dev->types[2] = _DRM_STAT_CLOSES;
554 dev->types[3] = _DRM_STAT_IOCTLS;
555 dev->types[4] = _DRM_STAT_LOCKS;
556 dev->types[5] = _DRM_STAT_UNLOCKS;
558 for ( i = 0 ; i < DRM_ARRAY_SIZE(dev->counts) ; i++ )
559 atomic_set( &dev->counts[i], 0 );
561 if (dev->driver.load != NULL) {
563 /* Shared code returns -errno. */
564 retcode = -dev->driver.load(dev,
565 dev->id_entry->driver_private);
571 if (dev->driver.use_agp) {
572 if (drm_device_is_agp(dev))
573 dev->agp = drm_agp_init();
574 if (dev->driver.require_agp && dev->agp == NULL) {
575 DRM_ERROR("Card isn't AGP, or couldn't initialize "
580 if (dev->agp != NULL) {
581 if (drm_mtrr_add(dev->agp->info.ai_aperture_base,
582 dev->agp->info.ai_aperture_size, DRM_MTRR_WC) == 0)
587 retcode = drm_ctxbitmap_init(dev);
589 DRM_ERROR("Cannot allocate memory for context bitmap.\n");
594 dev->drw_unrhdr = new_unrhdr(1, INT_MAX, NULL);
595 if (dev->drw_unrhdr == NULL) {
596 DRM_ERROR("Couldn't allocate drawable number allocator\n");
601 DRM_INFO("Initialized %s %d.%d.%d %s\n",
605 dev->driver.patchlevel,
611 #if defined(__FreeBSD__) || defined(__DragonFly__)
612 drm_sysctl_cleanup(dev);
617 #if defined(__FreeBSD__) || defined(__DragonFly__)
618 destroy_dev(dev->devnode);
619 #if __FreeBSD_version >= 500000
620 mtx_destroy(&dev->dev_lock);
621 #elif defined(__DragonFly__)
622 DRM_SPINUNINIT(&dev->dev_lock);
628 static void drm_unload(drm_device_t *dev)
634 #if defined(__FreeBSD__) || defined(__DragonFly__)
635 drm_sysctl_cleanup(dev);
636 destroy_dev(dev->devnode);
639 drm_ctxbitmap_cleanup(dev);
641 if (dev->agp && dev->agp->mtrr) {
642 int __unused retcode;
644 retcode = drm_mtrr_del(0, dev->agp->info.ai_aperture_base,
645 dev->agp->info.ai_aperture_size, DRM_MTRR_WC);
646 DRM_DEBUG("mtrr_del = %d", retcode);
653 /* Clean up PCI resources allocated by drm_bufs.c. We're not really
654 * worried about resource consumption while the DRM is inactive (between
655 * lastclose and firstopen or unload) because these aren't actually
656 * taking up KVA, just keeping the PCI resource allocated.
658 for (i = 0; i < DRM_MAX_PCI_RESOURCE; i++) {
659 if (dev->pcir[i] == NULL)
661 bus_release_resource(dev->device, SYS_RES_MEMORY,
662 dev->pcirid[i], dev->pcir[i]);
667 free(dev->agp, M_DRM);
671 if (dev->driver.unload != NULL)
672 dev->driver.unload(dev);
675 delete_unrhdr(dev->drw_unrhdr);
679 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
680 mtx_destroy(&dev->dev_lock);
681 #elif defined(__DragonFly__)
682 DRM_SPINUNINIT(&dev->dev_lock);
687 int drm_version(drm_device_t *dev, void *data, struct drm_file *file_priv)
689 drm_version_t *version = data;
692 #define DRM_COPY( name, value ) \
693 len = strlen( value ); \
694 if ( len > name##_len ) len = name##_len; \
695 name##_len = strlen( value ); \
696 if ( len && name ) { \
697 if ( DRM_COPY_TO_USER( name, value, len ) ) \
701 version->version_major = dev->driver.major;
702 version->version_minor = dev->driver.minor;
703 version->version_patchlevel = dev->driver.patchlevel;
705 DRM_COPY(version->name, dev->driver.name);
706 DRM_COPY(version->date, dev->driver.date);
707 DRM_COPY(version->desc, dev->driver.desc);
712 #ifndef __DragonFly__
713 int drm_open(struct cdev *kdev, int flags, int fmt, DRM_STRUCTPROC *p)
716 int drm_open(struct dev_open_args *ap)
718 struct cdev *kdev = ap->a_head.a_dev;
719 int flags = ap->a_oflags;
721 struct thread *p = curthread;
723 drm_device_t *dev = NULL;
726 dev = DRIVER_SOFTC(minor(kdev));
728 DRM_DEBUG( "open_count = %d\n", dev->open_count );
730 retcode = drm_open_helper(kdev, flags, fmt, p, dev);
733 atomic_inc( &dev->counts[_DRM_STAT_OPENS] );
735 #if defined(__FreeBSD__) || defined(__DragonFly__)
736 device_busy(dev->device);
738 if ( !dev->open_count++ )
739 retcode = drm_firstopen(dev);
746 #ifndef __DragonFly__
747 int drm_close(struct cdev *kdev, int flags, int fmt, DRM_STRUCTPROC *p)
750 int drm_close(struct dev_close_args *ap)
752 struct cdev *kdev = ap->a_head.a_dev;
753 struct thread *p = curthread;
755 drm_device_t *dev = drm_get_device_from_kdev(kdev);
756 drm_file_t *file_priv;
759 DRM_DEBUG( "open_count = %d\n", dev->open_count );
763 file_priv = drm_find_file_by_proc(dev, p);
766 DRM_ERROR("can't find authenticator\n");
770 if (--file_priv->refs != 0)
773 if (dev->driver.preclose != NULL)
774 dev->driver.preclose(dev, file_priv);
776 /* ========================================================
777 * Begin inline drm_release
780 #if defined(__FreeBSD__) || defined(__DragonFly__)
781 DRM_DEBUG( "pid = %d, device = 0x%lx, open_count = %d\n",
782 DRM_CURRENTPID, (long)dev->device, dev->open_count );
783 #elif defined(__NetBSD__) || defined(__OpenBSD__)
784 DRM_DEBUG( "pid = %d, device = 0x%lx, open_count = %d\n",
785 DRM_CURRENTPID, (long)&dev->device, dev->open_count);
788 if (dev->lock.hw_lock && _DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)
789 && dev->lock.file_priv == file_priv) {
790 DRM_DEBUG("Process %d dead, freeing lock for context %d\n",
792 _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
793 if (dev->driver.reclaim_buffers_locked != NULL)
794 dev->driver.reclaim_buffers_locked(dev, file_priv);
796 drm_lock_free(dev, &dev->lock.hw_lock->lock,
797 _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
799 /* FIXME: may require heavy-handed reset of
800 hardware at this point, possibly
801 processed via a callback to the X
803 } else if (dev->driver.reclaim_buffers_locked != NULL &&
804 dev->lock.hw_lock != NULL) {
805 /* The lock is required to reclaim buffers */
807 if ( !dev->lock.hw_lock ) {
808 /* Device has been unregistered */
812 if (drm_lock_take(&dev->lock.hw_lock->lock,
813 DRM_KERNEL_CONTEXT)) {
814 dev->lock.file_priv = file_priv;
815 dev->lock.lock_time = jiffies;
816 atomic_inc( &dev->counts[_DRM_STAT_LOCKS] );
817 break; /* Got lock */
820 #if defined(__FreeBSD__) && __FreeBSD_version > 500000
821 retcode = mtx_sleep((void *)&dev->lock.lock_queue,
822 &dev->dev_lock, PZERO | PCATCH, "drmlk2", 0);
823 #elif defined(__DragonFly__)
825 tsleep_interlock((void *)&dev->lock.lock_queue);
827 retcode = tsleep((void *)&dev->lock.lock_queue,
828 PCATCH, "drmlk2", 0);
832 retcode = tsleep((void *)&dev->lock.lock_queue,
833 PZERO | PCATCH, "drmlk2", 0);
839 dev->driver.reclaim_buffers_locked(dev, file_priv);
840 drm_lock_free(dev, &dev->lock.hw_lock->lock,
845 if (dev->driver.use_dma && !dev->driver.reclaim_buffers_locked)
846 drm_reclaim_buffers(dev, file_priv);
848 #if defined (__FreeBSD__) && (__FreeBSD_version >= 500000)
849 funsetown(&dev->buf_sigio);
850 #elif defined(__FreeBSD__) || defined(__DragonFly__)
851 funsetown(dev->buf_sigio);
852 #elif defined(__NetBSD__) || defined(__OpenBSD__)
854 #endif /* __NetBSD__ || __OpenBSD__ */
856 if (dev->driver.postclose != NULL)
857 dev->driver.postclose(dev, file_priv);
858 TAILQ_REMOVE(&dev->files, file_priv, link);
859 free(file_priv, M_DRM);
861 /* ========================================================
862 * End inline drm_release
866 atomic_inc( &dev->counts[_DRM_STAT_CLOSES] );
867 #if defined(__FreeBSD__) || defined(__DragonFly__)
868 device_unbusy(dev->device);
870 if (--dev->open_count == 0) {
871 retcode = drm_lastclose(dev);
879 /* drm_ioctl is called whenever a process performs an ioctl on /dev/drm.
881 #ifndef __DragonFly__
882 int drm_ioctl(struct cdev *kdev, u_long cmd, caddr_t data, int flags,
886 int drm_ioctl(struct dev_ioctl_args *ap)
888 struct cdev *kdev = ap->a_head.a_dev;
889 u_long cmd = ap->a_cmd;
890 caddr_t data = ap->a_data;
891 struct thread *p = curthread;
893 drm_device_t *dev = drm_get_device_from_kdev(kdev);
895 drm_ioctl_desc_t *ioctl;
896 int (*func)(drm_device_t *dev, void *data, struct drm_file *file_priv);
897 int nr = DRM_IOCTL_NR(cmd);
898 int is_driver_ioctl = 0;
899 drm_file_t *file_priv;
902 file_priv = drm_find_file_by_proc(dev, p);
904 if (file_priv == NULL) {
905 DRM_ERROR("can't find authenticator\n");
909 atomic_inc( &dev->counts[_DRM_STAT_IOCTLS] );
910 ++file_priv->ioctl_count;
912 #if defined(__FreeBSD__) || defined(__DragonFly__)
913 DRM_DEBUG( "pid=%d, cmd=0x%02lx, nr=0x%02x, dev 0x%lx, auth=%d\n",
914 DRM_CURRENTPID, cmd, nr, (long)dev->device,
915 file_priv->authenticated );
916 #elif defined(__NetBSD__) || defined(__OpenBSD__)
917 DRM_DEBUG( "pid=%d, cmd=0x%02lx, nr=0x%02x, dev 0x%lx, auth=%d\n",
918 DRM_CURRENTPID, cmd, nr, (long)&dev->device,
919 file_priv->authenticated );
927 #if defined(__FreeBSD__) || defined(__DragonFly__)
929 return fsetown(*(int *)data, &dev->buf_sigio);
932 #if (__FreeBSD_version >= 500000)
933 *(int *) data = fgetown(&dev->buf_sigio);
935 *(int *) data = fgetown(dev->buf_sigio);
938 #endif /* __FreeBSD__ || __DragonFly__ */
939 #if defined(__NetBSD__) || defined(__OpenBSD__)
941 dev->buf_pgid = *(int *)data;
945 *(int *)data = dev->buf_pgid;
947 #endif /* __NetBSD__ */
950 if (IOCGROUP(cmd) != DRM_IOCTL_BASE) {
951 DRM_DEBUG("Bad ioctl group 0x%x\n", (int)IOCGROUP(cmd));
955 ioctl = &drm_ioctls[nr];
956 /* It's not a core DRM ioctl, try driver-specific. */
957 if (ioctl->func == NULL && nr >= DRM_COMMAND_BASE) {
958 /* The array entries begin at DRM_COMMAND_BASE ioctl nr */
959 nr -= DRM_COMMAND_BASE;
960 if (nr > dev->driver.max_ioctl) {
961 DRM_DEBUG("Bad driver ioctl number, 0x%x (of 0x%x)\n",
962 nr, dev->driver.max_ioctl);
965 ioctl = &dev->driver.ioctls[nr];
971 DRM_DEBUG( "no function\n" );
975 if (((ioctl->flags & DRM_ROOT_ONLY) && !DRM_SUSER(p)) ||
976 ((ioctl->flags & DRM_AUTH) && !file_priv->authenticated) ||
977 ((ioctl->flags & DRM_MASTER) && !file_priv->master))
980 if (is_driver_ioctl) {
982 /* shared code returns -errno */
983 retcode = -func(dev, data, file_priv);
986 retcode = func(dev, data, file_priv);
990 DRM_DEBUG(" returning %d\n", retcode);
995 drm_local_map_t *drm_getsarea(drm_device_t *dev)
997 drm_local_map_t *map;
999 DRM_SPINLOCK_ASSERT(&dev->dev_lock);
1000 TAILQ_FOREACH(map, &dev->maplist, link) {
1001 if (map->type == _DRM_SHM && (map->flags & _DRM_CONTAINS_LOCK))
1010 #include <sys/sysproto.h>
1012 MODULE_DEPEND(DRIVER_NAME, linux, 1, 1, 1);
1014 #define LINUX_IOCTL_DRM_MIN 0x6400
1015 #define LINUX_IOCTL_DRM_MAX 0x64ff
1017 static linux_ioctl_function_t drm_linux_ioctl;
1018 static struct linux_ioctl_handler drm_handler = {drm_linux_ioctl,
1019 LINUX_IOCTL_DRM_MIN, LINUX_IOCTL_DRM_MAX};
1021 SYSINIT(drm_register, SI_SUB_KLD, SI_ORDER_MIDDLE,
1022 linux_ioctl_register_handler, &drm_handler);
1023 SYSUNINIT(drm_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE,
1024 linux_ioctl_unregister_handler, &drm_handler);
1026 /* The bits for in/out are switched on Linux */
1027 #define LINUX_IOC_IN IOC_OUT
1028 #define LINUX_IOC_OUT IOC_IN
1031 drm_linux_ioctl(DRM_STRUCTPROC *p, struct linux_ioctl_args* args)
1034 int cmd = args->cmd;
1036 args->cmd &= ~(LINUX_IOC_IN | LINUX_IOC_OUT);
1037 if (cmd & LINUX_IOC_IN)
1038 args->cmd |= IOC_IN;
1039 if (cmd & LINUX_IOC_OUT)
1040 args->cmd |= IOC_OUT;
1042 error = ioctl(p, (struct ioctl_args *)args);
1046 #endif /* DRM_LINUX */