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 * $FreeBSD: head/sys/dev/drm2/drm_drv.c 247835 2013-03-05 09:49:34Z kib $
33 * The catch-all file for DRM device support, including module setup/teardown,
34 * open/close, and ioctl dispatch.
38 #include <sys/limits.h>
39 #include <sys/devfs.h>
40 #include <dev/drm2/drmP.h>
41 #include <dev/drm2/drm.h>
42 #include <dev/drm2/drm_sarea.h>
43 #include <dev/drm2/drm_mode.h>
45 #ifdef DRM_DEBUG_DEFAULT_ON
46 int drm_debug_flag = (DRM_DEBUGBITS_DEBUG | DRM_DEBUGBITS_KMS |
47 DRM_DEBUGBITS_FAILED_IOCTL);
49 int drm_debug_flag = 0;
51 int drm_notyet_flag = 0;
53 unsigned int drm_vblank_offdelay = 5000; /* Default to 5000 msecs. */
54 unsigned int drm_timestamp_precision = 20; /* Default to 20 usecs. */
56 static int drm_load(struct drm_device *dev);
57 static void drm_unload(struct drm_device *dev);
58 static drm_pci_id_list_t *drm_find_description(int vendor, int device,
59 drm_pci_id_list_t *idlist);
61 #define DRIVER_SOFTC(unit) \
62 ((struct drm_device *)devclass_get_softc(drm_devclass, unit))
65 drm_modevent(module_t mod, int type, void *data)
70 TUNABLE_INT_FETCH("drm.debug", &drm_debug_flag);
71 TUNABLE_INT_FETCH("drm.notyet", &drm_notyet_flag);
77 static moduledata_t drm_mod = {
82 DECLARE_MODULE(drmn, drm_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
83 MODULE_VERSION(drmn, 1);
84 MODULE_DEPEND(drmn, agp, 1, 1, 1);
85 MODULE_DEPEND(drmn, pci, 1, 1, 1);
86 MODULE_DEPEND(drmn, iicbus, 1, 1, 1);
88 static drm_ioctl_desc_t drm_ioctls[256] = {
89 DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version, 0),
90 DRM_IOCTL_DEF(DRM_IOCTL_GET_UNIQUE, drm_getunique, 0),
91 DRM_IOCTL_DEF(DRM_IOCTL_GET_MAGIC, drm_getmagic, 0),
92 DRM_IOCTL_DEF(DRM_IOCTL_IRQ_BUSID, drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY),
93 DRM_IOCTL_DEF(DRM_IOCTL_GET_MAP, drm_getmap, 0),
94 DRM_IOCTL_DEF(DRM_IOCTL_GET_CLIENT, drm_getclient, 0),
95 DRM_IOCTL_DEF(DRM_IOCTL_GET_STATS, drm_getstats, 0),
96 DRM_IOCTL_DEF(DRM_IOCTL_GET_CAP, drm_getcap, DRM_UNLOCKED),
97 DRM_IOCTL_DEF(DRM_IOCTL_SET_VERSION, drm_setversion, DRM_MASTER|DRM_ROOT_ONLY),
99 DRM_IOCTL_DEF(DRM_IOCTL_SET_UNIQUE, drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
100 DRM_IOCTL_DEF(DRM_IOCTL_BLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
101 DRM_IOCTL_DEF(DRM_IOCTL_UNBLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
102 DRM_IOCTL_DEF(DRM_IOCTL_AUTH_MAGIC, drm_authmagic, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
104 DRM_IOCTL_DEF(DRM_IOCTL_ADD_MAP, drm_addmap_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
105 DRM_IOCTL_DEF(DRM_IOCTL_RM_MAP, drm_rmmap_ioctl, DRM_AUTH),
107 DRM_IOCTL_DEF(DRM_IOCTL_SET_SAREA_CTX, drm_setsareactx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
108 DRM_IOCTL_DEF(DRM_IOCTL_GET_SAREA_CTX, drm_getsareactx, DRM_AUTH),
110 DRM_IOCTL_DEF(DRM_IOCTL_SET_MASTER, drm_setmaster_ioctl, DRM_ROOT_ONLY),
111 DRM_IOCTL_DEF(DRM_IOCTL_DROP_MASTER, drm_dropmaster_ioctl, DRM_ROOT_ONLY),
113 DRM_IOCTL_DEF(DRM_IOCTL_ADD_CTX, drm_addctx, DRM_AUTH|DRM_ROOT_ONLY),
114 DRM_IOCTL_DEF(DRM_IOCTL_RM_CTX, drm_rmctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
115 DRM_IOCTL_DEF(DRM_IOCTL_MOD_CTX, drm_modctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
116 DRM_IOCTL_DEF(DRM_IOCTL_GET_CTX, drm_getctx, DRM_AUTH),
117 DRM_IOCTL_DEF(DRM_IOCTL_SWITCH_CTX, drm_switchctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
118 DRM_IOCTL_DEF(DRM_IOCTL_NEW_CTX, drm_newctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
119 DRM_IOCTL_DEF(DRM_IOCTL_RES_CTX, drm_resctx, DRM_AUTH),
121 DRM_IOCTL_DEF(DRM_IOCTL_ADD_DRAW, drm_adddraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
122 DRM_IOCTL_DEF(DRM_IOCTL_RM_DRAW, drm_rmdraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
124 DRM_IOCTL_DEF(DRM_IOCTL_LOCK, drm_lock, DRM_AUTH),
125 DRM_IOCTL_DEF(DRM_IOCTL_UNLOCK, drm_unlock, DRM_AUTH),
127 DRM_IOCTL_DEF(DRM_IOCTL_FINISH, drm_noop, DRM_AUTH),
129 DRM_IOCTL_DEF(DRM_IOCTL_ADD_BUFS, drm_addbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
130 DRM_IOCTL_DEF(DRM_IOCTL_MARK_BUFS, drm_markbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
131 DRM_IOCTL_DEF(DRM_IOCTL_INFO_BUFS, drm_infobufs, DRM_AUTH),
132 DRM_IOCTL_DEF(DRM_IOCTL_MAP_BUFS, drm_mapbufs, DRM_AUTH),
133 DRM_IOCTL_DEF(DRM_IOCTL_FREE_BUFS, drm_freebufs, DRM_AUTH),
134 DRM_IOCTL_DEF(DRM_IOCTL_DMA, drm_dma, DRM_AUTH),
136 DRM_IOCTL_DEF(DRM_IOCTL_CONTROL, drm_control, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
138 DRM_IOCTL_DEF(DRM_IOCTL_AGP_ACQUIRE, drm_agp_acquire_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
139 DRM_IOCTL_DEF(DRM_IOCTL_AGP_RELEASE, drm_agp_release_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
140 DRM_IOCTL_DEF(DRM_IOCTL_AGP_ENABLE, drm_agp_enable_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
141 DRM_IOCTL_DEF(DRM_IOCTL_AGP_INFO, drm_agp_info_ioctl, DRM_AUTH),
142 DRM_IOCTL_DEF(DRM_IOCTL_AGP_ALLOC, drm_agp_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
143 DRM_IOCTL_DEF(DRM_IOCTL_AGP_FREE, drm_agp_free_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
144 DRM_IOCTL_DEF(DRM_IOCTL_AGP_BIND, drm_agp_bind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
145 DRM_IOCTL_DEF(DRM_IOCTL_AGP_UNBIND, drm_agp_unbind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
147 DRM_IOCTL_DEF(DRM_IOCTL_SG_ALLOC, drm_sg_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
148 DRM_IOCTL_DEF(DRM_IOCTL_SG_FREE, drm_sg_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
149 DRM_IOCTL_DEF(DRM_IOCTL_WAIT_VBLANK, drm_wait_vblank, DRM_UNLOCKED),
150 DRM_IOCTL_DEF(DRM_IOCTL_MODESET_CTL, drm_modeset_ctl, 0),
151 DRM_IOCTL_DEF(DRM_IOCTL_UPDATE_DRAW, drm_update_draw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
153 DRM_IOCTL_DEF(DRM_IOCTL_GEM_CLOSE, drm_gem_close_ioctl, DRM_UNLOCKED),
154 DRM_IOCTL_DEF(DRM_IOCTL_GEM_FLINK, drm_gem_flink_ioctl, DRM_AUTH|DRM_UNLOCKED),
155 DRM_IOCTL_DEF(DRM_IOCTL_GEM_OPEN, drm_gem_open_ioctl, DRM_AUTH|DRM_UNLOCKED),
157 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETRESOURCES, drm_mode_getresources, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
158 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPLANERESOURCES, drm_mode_getplane_res, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
159 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCRTC, drm_mode_getcrtc, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
160 DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETCRTC, drm_mode_setcrtc, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
161 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPLANE, drm_mode_getplane, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
162 DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETPLANE, drm_mode_setplane, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
163 DRM_IOCTL_DEF(DRM_IOCTL_MODE_CURSOR, drm_mode_cursor_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
164 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETGAMMA, drm_mode_gamma_get_ioctl, DRM_MASTER|DRM_UNLOCKED),
165 DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETGAMMA, drm_mode_gamma_set_ioctl, DRM_MASTER|DRM_UNLOCKED),
166 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETENCODER, drm_mode_getencoder, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
167 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCONNECTOR, drm_mode_getconnector, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
168 DRM_IOCTL_DEF(DRM_IOCTL_MODE_ATTACHMODE, drm_mode_attachmode_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
169 DRM_IOCTL_DEF(DRM_IOCTL_MODE_DETACHMODE, drm_mode_detachmode_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
170 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPERTY, drm_mode_getproperty_ioctl, DRM_MASTER | DRM_CONTROL_ALLOW|DRM_UNLOCKED),
171 DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETPROPERTY, drm_mode_connector_property_set_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
172 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPBLOB, drm_mode_getblob_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
173 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETFB, drm_mode_getfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
174 DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB, drm_mode_addfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
175 DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB2, drm_mode_addfb2, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
176 DRM_IOCTL_DEF(DRM_IOCTL_MODE_RMFB, drm_mode_rmfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
177 DRM_IOCTL_DEF(DRM_IOCTL_MODE_PAGE_FLIP, drm_mode_page_flip_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
178 DRM_IOCTL_DEF(DRM_IOCTL_MODE_DIRTYFB, drm_mode_dirtyfb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
179 DRM_IOCTL_DEF(DRM_IOCTL_MODE_CREATE_DUMB, drm_mode_create_dumb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
180 DRM_IOCTL_DEF(DRM_IOCTL_MODE_MAP_DUMB, drm_mode_mmap_dumb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
181 DRM_IOCTL_DEF(DRM_IOCTL_MODE_DESTROY_DUMB, drm_mode_destroy_dumb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
184 static struct dev_ops drm_cdevsw = {
185 { "drm", 0, D_TRACKCLOSE },
187 .d_close = drm_close,
189 .d_ioctl = drm_ioctl,
190 .d_kqfilter = drm_kqfilter,
192 .d_mmap_single = drm_mmap_single,
195 static int drm_msi = 1; /* Enable by default. */
196 TUNABLE_INT("hw.drm.msi", &drm_msi);
197 SYSCTL_NODE(_hw, OID_AUTO, drm, CTLFLAG_RW, NULL, "DRM device");
198 SYSCTL_INT(_hw_drm, OID_AUTO, msi, CTLFLAG_RD, &drm_msi, 1,
199 "Enable MSI interrupts for drm devices");
201 static struct drm_msi_blacklist_entry drm_msi_blacklist[] = {
202 {0x8086, 0x2772}, /* Intel i945G */ \
203 {0x8086, 0x27A2}, /* Intel i945GM */ \
204 {0x8086, 0x27AE}, /* Intel i945GME */ \
208 static int drm_msi_is_blacklisted(int vendor, int device)
212 for (i = 0; drm_msi_blacklist[i].vendor != 0; i++) {
213 if ((drm_msi_blacklist[i].vendor == vendor) &&
214 (drm_msi_blacklist[i].device == device)) {
222 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist)
224 drm_pci_id_list_t *id_entry;
227 vendor = pci_get_vendor(kdev);
228 device = pci_get_device(kdev);
230 if (pci_get_class(kdev) != PCIC_DISPLAY)
233 id_entry = drm_find_description(vendor, device, idlist);
234 if (id_entry != NULL) {
235 if (!device_get_desc(kdev)) {
236 DRM_DEBUG("desc : %s\n", device_get_desc(kdev));
237 device_set_desc(kdev, id_entry->name);
245 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist)
247 struct drm_device *dev;
248 drm_pci_id_list_t *id_entry;
252 unit = device_get_unit(kdev);
253 dev = device_get_softc(kdev);
255 if (!strcmp(device_get_name(kdev), "drmsub"))
256 dev->device = device_get_parent(kdev);
260 dev->devnode = make_dev(&drm_cdevsw, unit, DRM_DEV_UID, DRM_DEV_GID,
261 DRM_DEV_MODE, "dri/card%d", unit);
263 dev->pci_domain = pci_get_domain(dev->device);
264 dev->pci_bus = pci_get_bus(dev->device);
265 dev->pci_slot = pci_get_slot(dev->device);
266 dev->pci_func = pci_get_function(dev->device);
268 dev->pci_vendor = pci_get_vendor(dev->device);
269 dev->pci_device = pci_get_device(dev->device);
271 if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ)) {
273 !drm_msi_is_blacklisted(dev->pci_vendor, dev->pci_device)) {
274 msicount = pci_msi_count(dev->device);
275 DRM_DEBUG("MSI count = %d\n", msicount);
279 if (pci_alloc_msi(dev->device, &rid, msicount, -1) == 0) {
280 DRM_INFO("MSI enabled %d message(s)\n",
282 dev->msi_enabled = 1;
287 dev->irqr = bus_alloc_resource_any(dev->device, SYS_RES_IRQ,
288 &dev->irqrid, RF_SHAREABLE);
293 dev->irq = (int) rman_get_start(dev->irqr);
296 lockinit(&dev->dev_lock, "drmdev", 0, LK_CANRECURSE);
297 lwkt_serialize_init(&dev->irq_lock);
298 lockinit(&dev->vbl_lock, "drmvbl", 0, LK_CANRECURSE);
299 spin_init(&dev->drw_lock);
300 lockinit(&dev->event_lock, "drmev", 0, LK_CANRECURSE);
301 lockinit(&dev->dev_struct_lock, "drmslk", 0, LK_CANRECURSE);
303 id_entry = drm_find_description(dev->pci_vendor,
304 dev->pci_device, idlist);
305 dev->id_entry = id_entry;
307 return drm_load(dev);
310 int drm_detach(device_t kdev)
312 struct drm_device *dev;
314 dev = device_get_softc(kdev);
317 bus_release_resource(dev->device, SYS_RES_IRQ, dev->irqrid,
319 if (dev->msi_enabled) {
320 pci_release_msi(dev->device);
321 DRM_INFO("MSI released\n");
328 #define DRM_DEV_NAME "drm"
331 devclass_t drm_devclass;
333 drm_pci_id_list_t *drm_find_description(int vendor, int device,
334 drm_pci_id_list_t *idlist)
338 for (i = 0; idlist[i].vendor != 0; i++) {
339 if ((idlist[i].vendor == vendor) &&
340 ((idlist[i].device == device) ||
341 (idlist[i].device == 0))) {
348 static int drm_firstopen(struct drm_device *dev)
350 drm_local_map_t *map;
353 DRM_LOCK_ASSERT(dev);
355 /* prebuild the SAREA */
356 i = drm_addmap(dev, 0, SAREA_MAX, _DRM_SHM,
357 _DRM_CONTAINS_LOCK, &map);
361 if (dev->driver->firstopen)
362 dev->driver->firstopen(dev);
366 if (drm_core_check_feature(dev, DRIVER_HAVE_DMA)) {
367 i = drm_dma_setup(dev);
372 for (i = 0; i < DRM_HASH_SIZE; i++) {
373 dev->magiclist[i].head = NULL;
374 dev->magiclist[i].tail = NULL;
377 dev->lock.lock_queue = 0;
378 if (!drm_core_check_feature(dev, DRIVER_MODESET))
379 dev->irq_enabled = 0;
380 dev->context_flag = 0;
381 dev->last_context = 0;
384 dev->buf_sigio = NULL;
391 static int drm_lastclose(struct drm_device *dev)
393 drm_magic_entry_t *pt, *next;
394 drm_local_map_t *map, *mapsave;
397 DRM_LOCK_ASSERT(dev);
401 if (dev->driver->lastclose != NULL)
402 dev->driver->lastclose(dev);
404 if (!drm_core_check_feature(dev, DRIVER_MODESET) && dev->irq_enabled)
405 drm_irq_uninstall(dev);
408 drm_free(dev->unique, DRM_MEM_DRIVER);
413 for (i = 0; i < DRM_HASH_SIZE; i++) {
414 for (pt = dev->magiclist[i].head; pt; pt = next) {
416 drm_free(pt, DRM_MEM_MAGIC);
418 dev->magiclist[i].head = dev->magiclist[i].tail = NULL;
422 drm_drawable_free_all(dev);
425 /* Clear AGP information */
427 drm_agp_mem_t *entry;
428 drm_agp_mem_t *nexte;
430 /* Remove AGP resources, but leave dev->agp intact until
431 * drm_unload is called.
433 for (entry = dev->agp->memory; entry; entry = nexte) {
436 drm_agp_unbind_memory(entry->handle);
437 drm_agp_free_memory(entry->handle);
438 drm_free(entry, DRM_MEM_AGPLISTS);
440 dev->agp->memory = NULL;
442 if (dev->agp->acquired)
443 drm_agp_release(dev);
445 dev->agp->acquired = 0;
446 dev->agp->enabled = 0;
448 if (dev->sg != NULL) {
449 drm_sg_cleanup(dev->sg);
453 #if defined(__DragonFly__)
454 TAILQ_FOREACH_MUTABLE(map, &dev->maplist, link, mapsave) {
456 TAILQ_FOREACH_SAFE(map, &dev->maplist, link, mapsave) {
458 if (!(map->flags & _DRM_DRIVER))
462 drm_dma_takedown(dev);
463 if (dev->lock.hw_lock) {
464 dev->lock.hw_lock = NULL; /* SHM removed */
465 dev->lock.file_priv = NULL;
466 DRM_WAKEUP_INT((void *)&dev->lock.lock_queue);
472 static int drm_load(struct drm_device *dev)
478 TAILQ_INIT(&dev->maplist);
479 dev->map_unrhdr = new_unrhdr(1, ((1 << DRM_MAP_HANDLE_BITS) - 1), NULL);
480 if (dev->map_unrhdr == NULL) {
481 DRM_ERROR("Couldn't allocate map number allocator\n");
487 drm_sysctl_init(dev);
488 TAILQ_INIT(&dev->files);
491 dev->types[0] = _DRM_STAT_LOCK;
492 dev->types[1] = _DRM_STAT_OPENS;
493 dev->types[2] = _DRM_STAT_CLOSES;
494 dev->types[3] = _DRM_STAT_IOCTLS;
495 dev->types[4] = _DRM_STAT_LOCKS;
496 dev->types[5] = _DRM_STAT_UNLOCKS;
498 for (i = 0; i < DRM_ARRAY_SIZE(dev->counts); i++)
499 atomic_set(&dev->counts[i], 0);
501 INIT_LIST_HEAD(&dev->vblank_event_list);
503 if (drm_core_has_AGP(dev)) {
504 if (drm_device_is_agp(dev))
505 dev->agp = drm_agp_init();
506 if (drm_core_check_feature(dev, DRIVER_REQUIRE_AGP) &&
508 DRM_ERROR("Card isn't AGP, or couldn't initialize "
513 if (dev->agp != NULL && dev->agp->info.ai_aperture_base != 0) {
514 if (drm_mtrr_add(dev->agp->info.ai_aperture_base,
515 dev->agp->info.ai_aperture_size, DRM_MTRR_WC) == 0)
520 retcode = drm_ctxbitmap_init(dev);
522 DRM_ERROR("Cannot allocate memory for context bitmap.\n");
526 dev->drw_unrhdr = new_unrhdr(1, INT_MAX, NULL);
527 if (dev->drw_unrhdr == NULL) {
528 DRM_ERROR("Couldn't allocate drawable number allocator\n");
533 if (dev->driver->driver_features & DRIVER_GEM) {
534 retcode = drm_gem_init(dev);
536 DRM_ERROR("Cannot initialize graphics execution "
542 if (dev->driver->load != NULL) {
544 /* Shared code returns -errno. */
545 retcode = -dev->driver->load(dev,
546 dev->id_entry->driver_private);
547 if (pci_enable_busmaster(dev->device))
548 DRM_ERROR("Request to enable bus-master failed.\n");
554 DRM_INFO("Initialized %s %d.%d.%d %s\n",
558 dev->driver->patchlevel,
564 delete_unrhdr(dev->drw_unrhdr);
566 drm_sysctl_cleanup(dev);
570 if (dev->devnode != NULL)
571 destroy_dev(dev->devnode);
573 spin_uninit(&dev->drw_lock);
574 lockuninit(&dev->vbl_lock);
575 lockuninit(&dev->dev_lock);
576 lockuninit(&dev->event_lock);
577 lockuninit(&dev->dev_struct_lock);
582 static void drm_unload(struct drm_device *dev)
588 drm_sysctl_cleanup(dev);
589 if (dev->devnode != NULL)
590 destroy_dev(dev->devnode);
592 drm_ctxbitmap_cleanup(dev);
594 if (dev->driver->driver_features & DRIVER_GEM)
595 drm_gem_destroy(dev);
597 if (dev->agp && dev->agp->mtrr) {
598 int __unused retcode;
600 retcode = drm_mtrr_del(0, dev->agp->info.ai_aperture_base,
601 dev->agp->info.ai_aperture_size, DRM_MTRR_WC);
602 DRM_DEBUG("mtrr_del = %d", retcode);
605 drm_vblank_cleanup(dev);
611 /* Clean up PCI resources allocated by drm_bufs.c. We're not really
612 * worried about resource consumption while the DRM is inactive (between
613 * lastclose and firstopen or unload) because these aren't actually
614 * taking up KVA, just keeping the PCI resource allocated.
616 for (i = 0; i < DRM_MAX_PCI_RESOURCE; i++) {
617 if (dev->pcir[i] == NULL)
619 bus_release_resource(dev->device, SYS_RES_MEMORY,
620 dev->pcirid[i], dev->pcir[i]);
625 drm_free(dev->agp, DRM_MEM_AGPLISTS);
629 if (dev->driver->unload != NULL) {
631 dev->driver->unload(dev);
635 delete_unrhdr(dev->drw_unrhdr);
636 delete_unrhdr(dev->map_unrhdr);
640 if (pci_disable_busmaster(dev->device))
641 DRM_ERROR("Request to disable bus-master failed.\n");
643 spin_uninit(&dev->drw_lock);
644 lockuninit(&dev->vbl_lock);
645 lockuninit(&dev->dev_lock);
646 lockuninit(&dev->event_lock);
647 lockuninit(&dev->dev_struct_lock);
650 int drm_version(struct drm_device *dev, void *data, struct drm_file *file_priv)
652 struct drm_version *version = data;
655 #define DRM_COPY( name, value ) \
656 len = strlen( value ); \
657 if ( len > name##_len ) len = name##_len; \
658 name##_len = strlen( value ); \
659 if ( len && name ) { \
660 if ( DRM_COPY_TO_USER( name, value, len ) ) \
664 version->version_major = dev->driver->major;
665 version->version_minor = dev->driver->minor;
666 version->version_patchlevel = dev->driver->patchlevel;
668 DRM_COPY(version->name, dev->driver->name);
669 DRM_COPY(version->date, dev->driver->date);
670 DRM_COPY(version->desc, dev->driver->desc);
676 /* drm_open(struct cdev *kdev, int flags, int fmt, DRM_STRUCTPROC *p) */
677 drm_open(struct dev_open_args *ap)
679 struct cdev *kdev = ap->a_head.a_dev;
680 int flags = ap->a_oflags;
682 struct thread *p = curthread;
683 struct drm_device *dev;
686 dev = DRIVER_SOFTC(minor(kdev));
690 DRM_DEBUG("open_count = %d\n", dev->open_count);
692 retcode = drm_open_helper(kdev, flags, fmt, p, dev);
695 atomic_inc(&dev->counts[_DRM_STAT_OPENS]);
697 device_busy(dev->device);
698 if (!dev->open_count++)
699 retcode = drm_firstopen(dev);
703 DRM_DEBUG("return %d\n", retcode);
708 int drm_close(struct dev_close_args *ap)
710 struct cdev *kdev = ap->a_head.a_dev;
711 struct drm_file *file_priv;
712 struct drm_device *dev;
715 dev = DRIVER_SOFTC(minor(kdev));
716 file_priv = drm_find_file_by_proc(dev, curthread);
718 DRM_DEBUG("open_count = %d\n", dev->open_count);
722 if (dev->driver->preclose != NULL)
723 dev->driver->preclose(dev, file_priv);
725 /* ========================================================
726 * Begin inline drm_release
729 DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n",
730 DRM_CURRENTPID, (long)dev->device, dev->open_count);
732 if (dev->driver->driver_features & DRIVER_GEM)
733 drm_gem_release(dev, file_priv);
735 if (dev->lock.hw_lock && _DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)
736 && dev->lock.file_priv == file_priv) {
737 DRM_DEBUG("Process %d dead, freeing lock for context %d\n",
739 _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
740 if (dev->driver->reclaim_buffers_locked != NULL)
741 dev->driver->reclaim_buffers_locked(dev, file_priv);
743 drm_lock_free(&dev->lock,
744 _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
746 /* FIXME: may require heavy-handed reset of
747 hardware at this point, possibly
748 processed via a callback to the X
750 } else if (dev->driver->reclaim_buffers_locked != NULL &&
751 dev->lock.hw_lock != NULL) {
752 /* The lock is required to reclaim buffers */
754 if (!dev->lock.hw_lock) {
755 /* Device has been unregistered */
759 if (drm_lock_take(&dev->lock, DRM_KERNEL_CONTEXT)) {
760 dev->lock.file_priv = file_priv;
761 dev->lock.lock_time = jiffies;
762 atomic_inc(&dev->counts[_DRM_STAT_LOCKS]);
763 break; /* Got lock */
766 retcode = DRM_LOCK_SLEEP(dev, &dev->lock.lock_queue,
767 PCATCH, "drmlk2", 0);
772 dev->driver->reclaim_buffers_locked(dev, file_priv);
773 drm_lock_free(&dev->lock, DRM_KERNEL_CONTEXT);
777 if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) &&
778 !dev->driver->reclaim_buffers_locked)
779 drm_reclaim_buffers(dev, file_priv);
781 funsetown(&dev->buf_sigio);
783 if (dev->driver->postclose != NULL)
784 dev->driver->postclose(dev, file_priv);
785 TAILQ_REMOVE(&dev->files, file_priv, link);
786 drm_free(file_priv, DRM_MEM_FILES);
788 /* ========================================================
789 * End inline drm_release
792 atomic_inc(&dev->counts[_DRM_STAT_CLOSES]);
793 device_unbusy(dev->device);
794 if (--dev->open_count == 0) {
795 retcode = drm_lastclose(dev);
803 /* drm_ioctl is called whenever a process performs an ioctl on /dev/drm.
805 int drm_ioctl(struct dev_ioctl_args *ap)
807 struct cdev *kdev = ap->a_head.a_dev;
808 u_long cmd = ap->a_cmd;
809 caddr_t data = ap->a_data;
810 struct thread *p = curthread;
811 struct drm_device *dev = drm_get_device_from_kdev(kdev);
813 drm_ioctl_desc_t *ioctl;
814 int (*func)(struct drm_device *dev, void *data, struct drm_file *file_priv);
815 int nr = DRM_IOCTL_NR(cmd);
816 int is_driver_ioctl = 0;
817 struct drm_file *file_priv;
819 file_priv = drm_find_file_by_proc(dev, p);
821 atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]);
822 ++file_priv->ioctl_count;
824 DRM_DEBUG("pid=%d, cmd=0x%02lx, nr=0x%02x, dev 0x%lx, auth=%d\n",
825 DRM_CURRENTPID, cmd, nr, (long)dev->device,
826 file_priv->authenticated);
834 return fsetown(*(int *)data, &dev->buf_sigio);
837 *(int *) data = fgetown(&dev->buf_sigio);
841 if (IOCGROUP(cmd) != DRM_IOCTL_BASE) {
842 DRM_DEBUG("Bad ioctl group 0x%x\n", (int)IOCGROUP(cmd));
846 ioctl = &drm_ioctls[nr];
847 /* It's not a core DRM ioctl, try driver-specific. */
848 if (ioctl->func == NULL && nr >= DRM_COMMAND_BASE) {
849 /* The array entries begin at DRM_COMMAND_BASE ioctl nr */
850 nr -= DRM_COMMAND_BASE;
851 if (nr > dev->driver->max_ioctl) {
852 DRM_DEBUG("Bad driver ioctl number, 0x%x (of 0x%x)\n",
853 nr, dev->driver->max_ioctl);
856 ioctl = &dev->driver->ioctls[nr];
862 DRM_DEBUG("no function\n");
866 if (((ioctl->flags & DRM_ROOT_ONLY) && !DRM_SUSER(p)) ||
867 ((ioctl->flags & DRM_AUTH) && !file_priv->authenticated) ||
868 ((ioctl->flags & DRM_MASTER) && !file_priv->master))
871 if (is_driver_ioctl) {
872 if ((ioctl->flags & DRM_UNLOCKED) == 0)
874 /* shared code returns -errno */
875 retcode = -func(dev, data, file_priv);
876 if ((ioctl->flags & DRM_UNLOCKED) == 0)
879 retcode = func(dev, data, file_priv);
883 DRM_DEBUG(" returning %d\n", retcode);
885 (drm_debug_flag & DRM_DEBUGBITS_FAILED_IOCTL) != 0) {
887 "pid %d, cmd 0x%02lx, nr 0x%02x/%1d, dev 0x%lx, auth %d, res %d\n",
888 DRM_CURRENTPID, cmd, nr, is_driver_ioctl, (long)dev->device,
889 file_priv->authenticated, retcode);
895 drm_local_map_t *drm_getsarea(struct drm_device *dev)
897 drm_local_map_t *map;
899 DRM_LOCK_ASSERT(dev);
900 TAILQ_FOREACH(map, &dev->maplist, link) {
901 if (map->type == _DRM_SHM && (map->flags & _DRM_CONTAINS_LOCK))
909 drm_add_busid_modesetting(struct drm_device *dev, struct sysctl_ctx_list *ctx,
910 struct sysctl_oid *top)
912 struct sysctl_oid *oid;
914 ksnprintf(dev->busid_str, sizeof(dev->busid_str),
915 "pci:%04x:%02x:%02x.%d", dev->pci_domain, dev->pci_bus,
916 dev->pci_slot, dev->pci_func);
917 oid = SYSCTL_ADD_STRING(ctx, SYSCTL_CHILDREN(top), OID_AUTO, "busid",
918 CTLFLAG_RD, dev->busid_str, 0, NULL);
921 dev->modesetting = (dev->driver->driver_features & DRIVER_MODESET) != 0;
922 oid = SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(top), OID_AUTO,
923 "modesetting", CTLFLAG_RD, &dev->modesetting, 0, NULL);
931 drm_mmap_single(struct dev_mmap_single_args *ap)
933 struct drm_device *dev;
934 struct cdev *kdev = ap->a_head.a_dev;
935 vm_ooffset_t *offset = ap->a_offset;
936 vm_size_t size = ap->a_size;
937 struct vm_object **obj_res = ap->a_object;
938 int nprot = ap->a_nprot;
940 dev = drm_get_device_from_kdev(kdev);
941 if ((dev->driver->driver_features & DRIVER_GEM) != 0) {
942 return (drm_gem_mmap_single(dev, offset, size, obj_res, nprot));
943 } else if (dev->drm_ttm_bo != NULL) {
944 return (ttm_bo_mmap_single(dev->drm_ttm_bo, offset, size,
953 #include <sys/sysproto.h>
955 MODULE_DEPEND(DRIVER_NAME, linux, 1, 1, 1);
957 #define LINUX_IOCTL_DRM_MIN 0x6400
958 #define LINUX_IOCTL_DRM_MAX 0x64ff
960 static linux_ioctl_function_t drm_linux_ioctl;
961 static struct linux_ioctl_handler drm_handler = {drm_linux_ioctl,
962 LINUX_IOCTL_DRM_MIN, LINUX_IOCTL_DRM_MAX};
964 SYSINIT(drm_register, SI_SUB_KLD, SI_ORDER_MIDDLE,
965 linux_ioctl_register_handler, &drm_handler);
966 SYSUNINIT(drm_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE,
967 linux_ioctl_unregister_handler, &drm_handler);
969 /* The bits for in/out are switched on Linux */
970 #define LINUX_IOC_IN IOC_OUT
971 #define LINUX_IOC_OUT IOC_IN
974 drm_linux_ioctl(DRM_STRUCTPROC *p, struct linux_ioctl_args* args)
979 args->cmd &= ~(LINUX_IOC_IN | LINUX_IOC_OUT);
980 if (cmd & LINUX_IOC_IN)
982 if (cmd & LINUX_IOC_OUT)
983 args->cmd |= IOC_OUT;
985 error = ioctl(p, (struct ioctl_args *)args);
989 #endif /* DRM_LINUX */
992 * Check if dmi_system_id structure matches system DMI data
995 dmi_found(const struct dmi_system_id *dsi)
999 char *sys_vendor, *board_vendor, *product_name, *board_name;
1001 sys_vendor = kgetenv("smbios.system.maker");
1002 board_vendor = kgetenv("smbios.planar.maker");
1003 product_name = kgetenv("smbios.system.product");
1004 board_name = kgetenv("smbios.planar.product");
1006 for (i = 0; i < NELEM(dsi->matches); i++) {
1007 slot = dsi->matches[i].slot;
1011 case DMI_SYS_VENDOR:
1012 if (sys_vendor != NULL &&
1013 !strcmp(sys_vendor, dsi->matches[i].substr))
1017 case DMI_BOARD_VENDOR:
1018 if (board_vendor != NULL &&
1019 !strcmp(board_vendor, dsi->matches[i].substr))
1023 case DMI_PRODUCT_NAME:
1024 if (product_name != NULL &&
1025 !strcmp(product_name, dsi->matches[i].substr))
1029 case DMI_BOARD_NAME:
1030 if (board_name != NULL &&
1031 !strcmp(board_name, dsi->matches[i].substr))
1042 if (sys_vendor != NULL)
1043 kfreeenv(sys_vendor);
1044 if (board_vendor != NULL)
1045 kfreeenv(board_vendor);
1046 if (product_name != NULL)
1047 kfreeenv(product_name);
1048 if (board_name != NULL)
1049 kfreeenv(board_name);
1055 dmi_check_system(const struct dmi_system_id *sysid)
1057 const struct dmi_system_id *dsi;
1060 for (dsi = sysid; dsi->matches[0].slot != 0 ; dsi++) {
1061 if (dmi_found(dsi)) {
1063 if (dsi->callback && dsi->callback(dsi))