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.
37 #include <sys/devfs.h>
38 #include <machine/limits.h>
41 #include <drm/drm_core.h>
43 #ifdef DRM_DEBUG_DEFAULT_ON
44 int drm_debug = (DRM_DEBUGBITS_DEBUG | DRM_DEBUGBITS_KMS |
45 DRM_DEBUGBITS_FAILED_IOCTL);
49 int drm_notyet_flag = 0;
51 unsigned int drm_vblank_offdelay = 5000; /* Default to 5000 msecs. */
52 unsigned int drm_timestamp_precision = 20; /* Default to 20 usecs. */
54 static int drm_load(struct drm_device *dev);
55 drm_pci_id_list_t *drm_find_description(int vendor, int device,
56 drm_pci_id_list_t *idlist);
58 #define DRIVER_SOFTC(unit) \
59 ((struct drm_device *)devclass_get_softc(drm_devclass, unit))
62 drm_modevent(module_t mod, int type, void *data)
67 TUNABLE_INT_FETCH("drm.debug", &drm_debug);
68 TUNABLE_INT_FETCH("drm.notyet", &drm_notyet_flag);
74 static moduledata_t drm_mod = {
79 DECLARE_MODULE(drm, drm_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
80 MODULE_VERSION(drm, 1);
81 MODULE_DEPEND(drm, agp, 1, 1, 1);
82 MODULE_DEPEND(drm, pci, 1, 1, 1);
83 MODULE_DEPEND(drm, iicbus, 1, 1, 1);
85 static drm_ioctl_desc_t drm_ioctls[256] = {
86 DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version, 0),
87 DRM_IOCTL_DEF(DRM_IOCTL_GET_UNIQUE, drm_getunique, 0),
88 DRM_IOCTL_DEF(DRM_IOCTL_GET_MAGIC, drm_getmagic, 0),
89 DRM_IOCTL_DEF(DRM_IOCTL_IRQ_BUSID, drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY),
90 DRM_IOCTL_DEF(DRM_IOCTL_GET_MAP, drm_getmap, 0),
91 DRM_IOCTL_DEF(DRM_IOCTL_GET_CLIENT, drm_getclient, 0),
92 DRM_IOCTL_DEF(DRM_IOCTL_GET_STATS, drm_getstats, 0),
93 DRM_IOCTL_DEF(DRM_IOCTL_GET_CAP, drm_getcap, DRM_UNLOCKED),
94 DRM_IOCTL_DEF(DRM_IOCTL_SET_VERSION, drm_setversion, DRM_MASTER|DRM_ROOT_ONLY),
96 DRM_IOCTL_DEF(DRM_IOCTL_SET_UNIQUE, drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
97 DRM_IOCTL_DEF(DRM_IOCTL_BLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
98 DRM_IOCTL_DEF(DRM_IOCTL_UNBLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
99 DRM_IOCTL_DEF(DRM_IOCTL_AUTH_MAGIC, drm_authmagic, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
101 DRM_IOCTL_DEF(DRM_IOCTL_ADD_MAP, drm_addmap_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
102 DRM_IOCTL_DEF(DRM_IOCTL_RM_MAP, drm_rmmap_ioctl, DRM_AUTH),
104 DRM_IOCTL_DEF(DRM_IOCTL_SET_SAREA_CTX, drm_setsareactx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
105 DRM_IOCTL_DEF(DRM_IOCTL_GET_SAREA_CTX, drm_getsareactx, DRM_AUTH),
107 DRM_IOCTL_DEF(DRM_IOCTL_SET_MASTER, drm_setmaster_ioctl, DRM_ROOT_ONLY),
108 DRM_IOCTL_DEF(DRM_IOCTL_DROP_MASTER, drm_dropmaster_ioctl, DRM_ROOT_ONLY),
110 DRM_IOCTL_DEF(DRM_IOCTL_ADD_CTX, drm_addctx, DRM_AUTH|DRM_ROOT_ONLY),
111 DRM_IOCTL_DEF(DRM_IOCTL_RM_CTX, drm_rmctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
112 DRM_IOCTL_DEF(DRM_IOCTL_MOD_CTX, drm_modctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
113 DRM_IOCTL_DEF(DRM_IOCTL_GET_CTX, drm_getctx, DRM_AUTH),
114 DRM_IOCTL_DEF(DRM_IOCTL_SWITCH_CTX, drm_switchctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
115 DRM_IOCTL_DEF(DRM_IOCTL_NEW_CTX, drm_newctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
116 DRM_IOCTL_DEF(DRM_IOCTL_RES_CTX, drm_resctx, DRM_AUTH),
118 DRM_IOCTL_DEF(DRM_IOCTL_ADD_DRAW, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
119 DRM_IOCTL_DEF(DRM_IOCTL_RM_DRAW, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
121 DRM_IOCTL_DEF(DRM_IOCTL_LOCK, drm_lock, DRM_AUTH),
122 DRM_IOCTL_DEF(DRM_IOCTL_UNLOCK, drm_unlock, DRM_AUTH),
124 DRM_IOCTL_DEF(DRM_IOCTL_FINISH, drm_noop, DRM_AUTH),
126 DRM_IOCTL_DEF(DRM_IOCTL_ADD_BUFS, drm_addbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
127 DRM_IOCTL_DEF(DRM_IOCTL_MARK_BUFS, drm_markbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
128 DRM_IOCTL_DEF(DRM_IOCTL_INFO_BUFS, drm_infobufs, DRM_AUTH),
129 DRM_IOCTL_DEF(DRM_IOCTL_MAP_BUFS, drm_mapbufs, DRM_AUTH),
130 DRM_IOCTL_DEF(DRM_IOCTL_FREE_BUFS, drm_freebufs, DRM_AUTH),
131 DRM_IOCTL_DEF(DRM_IOCTL_DMA, drm_dma, DRM_AUTH),
133 DRM_IOCTL_DEF(DRM_IOCTL_CONTROL, drm_control, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
135 DRM_IOCTL_DEF(DRM_IOCTL_AGP_ACQUIRE, drm_agp_acquire_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
136 DRM_IOCTL_DEF(DRM_IOCTL_AGP_RELEASE, drm_agp_release_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
137 DRM_IOCTL_DEF(DRM_IOCTL_AGP_ENABLE, drm_agp_enable_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
138 DRM_IOCTL_DEF(DRM_IOCTL_AGP_INFO, drm_agp_info_ioctl, DRM_AUTH),
139 DRM_IOCTL_DEF(DRM_IOCTL_AGP_ALLOC, drm_agp_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
140 DRM_IOCTL_DEF(DRM_IOCTL_AGP_FREE, drm_agp_free_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
141 DRM_IOCTL_DEF(DRM_IOCTL_AGP_BIND, drm_agp_bind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
142 DRM_IOCTL_DEF(DRM_IOCTL_AGP_UNBIND, drm_agp_unbind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
144 DRM_IOCTL_DEF(DRM_IOCTL_SG_ALLOC, drm_sg_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
145 DRM_IOCTL_DEF(DRM_IOCTL_SG_FREE, drm_sg_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
146 DRM_IOCTL_DEF(DRM_IOCTL_WAIT_VBLANK, drm_wait_vblank, DRM_UNLOCKED),
147 DRM_IOCTL_DEF(DRM_IOCTL_MODESET_CTL, drm_modeset_ctl, 0),
149 DRM_IOCTL_DEF(DRM_IOCTL_UPDATE_DRAW, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
151 DRM_IOCTL_DEF(DRM_IOCTL_GEM_CLOSE, drm_gem_close_ioctl, DRM_UNLOCKED),
152 DRM_IOCTL_DEF(DRM_IOCTL_GEM_FLINK, drm_gem_flink_ioctl, DRM_AUTH|DRM_UNLOCKED),
153 DRM_IOCTL_DEF(DRM_IOCTL_GEM_OPEN, drm_gem_open_ioctl, DRM_AUTH|DRM_UNLOCKED),
155 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETRESOURCES, drm_mode_getresources, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
156 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPLANERESOURCES, drm_mode_getplane_res, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
157 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCRTC, drm_mode_getcrtc, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
158 DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETCRTC, drm_mode_setcrtc, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
159 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPLANE, drm_mode_getplane, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
160 DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETPLANE, drm_mode_setplane, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
161 DRM_IOCTL_DEF(DRM_IOCTL_MODE_CURSOR, drm_mode_cursor_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
162 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETGAMMA, drm_mode_gamma_get_ioctl, DRM_MASTER|DRM_UNLOCKED),
163 DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETGAMMA, drm_mode_gamma_set_ioctl, DRM_MASTER|DRM_UNLOCKED),
164 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETENCODER, drm_mode_getencoder, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
165 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCONNECTOR, drm_mode_getconnector, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
166 DRM_IOCTL_DEF(DRM_IOCTL_MODE_ATTACHMODE, drm_noop, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
167 DRM_IOCTL_DEF(DRM_IOCTL_MODE_DETACHMODE, drm_noop, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
168 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPERTY, drm_mode_getproperty_ioctl, DRM_MASTER | DRM_CONTROL_ALLOW|DRM_UNLOCKED),
169 DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETPROPERTY, drm_mode_connector_property_set_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
170 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPBLOB, drm_mode_getblob_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
171 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETFB, drm_mode_getfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
172 DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB, drm_mode_addfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
173 DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB2, drm_mode_addfb2, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
174 DRM_IOCTL_DEF(DRM_IOCTL_MODE_RMFB, drm_mode_rmfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
175 DRM_IOCTL_DEF(DRM_IOCTL_MODE_PAGE_FLIP, drm_mode_page_flip_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
176 DRM_IOCTL_DEF(DRM_IOCTL_MODE_DIRTYFB, drm_mode_dirtyfb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
177 DRM_IOCTL_DEF(DRM_IOCTL_MODE_CREATE_DUMB, drm_mode_create_dumb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
178 DRM_IOCTL_DEF(DRM_IOCTL_MODE_MAP_DUMB, drm_mode_mmap_dumb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
179 DRM_IOCTL_DEF(DRM_IOCTL_MODE_DESTROY_DUMB, drm_mode_destroy_dumb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
182 static struct dev_ops drm_cdevsw = {
183 { "drm", 0, D_TRACKCLOSE | D_MPSAFE },
185 .d_close = drm_close,
187 .d_ioctl = drm_ioctl,
188 .d_kqfilter = drm_kqfilter,
190 .d_mmap_single = drm_mmap_single,
193 static int drm_msi = 1; /* Enable by default. */
194 TUNABLE_INT("hw.drm.msi", &drm_msi);
195 SYSCTL_NODE(_hw, OID_AUTO, drm, CTLFLAG_RW, NULL, "DRM device");
196 SYSCTL_INT(_hw_drm, OID_AUTO, msi, CTLFLAG_RD, &drm_msi, 1,
197 "Enable MSI interrupts for drm devices");
199 static struct drm_msi_blacklist_entry drm_msi_blacklist[] = {
200 {0x8086, 0x2772}, /* Intel i945G */ \
201 {0x8086, 0x27A2}, /* Intel i945GM */ \
202 {0x8086, 0x27AE}, /* Intel i945GME */ \
206 static int drm_msi_is_blacklisted(struct drm_device *dev, unsigned long flags)
210 if (dev->driver->use_msi != NULL) {
213 use_msi = dev->driver->use_msi(dev, flags);
218 /* TODO: Maybe move this to a callback in i915? */
219 for (i = 0; drm_msi_blacklist[i].vendor != 0; i++) {
220 if ((drm_msi_blacklist[i].vendor == dev->pci_vendor) &&
221 (drm_msi_blacklist[i].device == dev->pci_device)) {
229 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist)
231 drm_pci_id_list_t *id_entry;
234 vendor = pci_get_vendor(kdev);
235 device = pci_get_device(kdev);
237 if (pci_get_class(kdev) != PCIC_DISPLAY)
240 id_entry = drm_find_description(vendor, device, idlist);
241 if (id_entry != NULL) {
242 if (!device_get_desc(kdev)) {
243 DRM_DEBUG("desc : %s\n", device_get_desc(kdev));
244 device_set_desc(kdev, id_entry->name);
252 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist)
254 struct drm_device *dev;
255 drm_pci_id_list_t *id_entry;
256 int unit, error, msicount;
259 unit = device_get_unit(kdev);
260 dev = device_get_softc(kdev);
262 if (!strcmp(device_get_name(kdev), "drmsub"))
263 dev->dev = device_get_parent(kdev);
267 dev->pci_domain = pci_get_domain(dev->dev);
268 dev->pci_bus = pci_get_bus(dev->dev);
269 dev->pci_slot = pci_get_slot(dev->dev);
270 dev->pci_func = pci_get_function(dev->dev);
272 dev->pci_vendor = pci_get_vendor(dev->dev);
273 dev->pci_device = pci_get_device(dev->dev);
274 dev->pci_subvendor = pci_get_subvendor(dev->dev);
275 dev->pci_subdevice = pci_get_subdevice(dev->dev);
277 id_entry = drm_find_description(dev->pci_vendor,
278 dev->pci_device, idlist);
279 dev->id_entry = id_entry;
281 if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ)) {
283 !drm_msi_is_blacklisted(dev, dev->id_entry->driver_private)) {
284 msicount = pci_msi_count(dev->dev);
285 DRM_DEBUG("MSI count = %d\n", msicount);
289 if (pci_alloc_msi(dev->dev, &rid, msicount, -1) == 0) {
290 DRM_INFO("MSI enabled %d message(s)\n",
292 dev->msi_enabled = 1;
297 dev->irqr = bus_alloc_resource_any(dev->dev, SYS_RES_IRQ,
298 &dev->irqrid, RF_SHAREABLE);
303 dev->irq = (int) rman_get_start(dev->irqr);
306 lockinit(&dev->dev_lock, "drmdev", 0, LK_CANRECURSE);
307 lwkt_serialize_init(&dev->irq_lock);
308 lockinit(&dev->event_lock, "drmev", 0, LK_CANRECURSE);
309 lockinit(&dev->struct_mutex, "drmslk", 0, LK_CANRECURSE);
311 error = drm_load(dev);
315 error = drm_create_cdevs(kdev);
322 bus_release_resource(dev->dev, SYS_RES_IRQ,
323 dev->irqrid, dev->irqr);
325 if (dev->msi_enabled) {
326 pci_release_msi(dev->dev);
332 drm_create_cdevs(device_t kdev)
334 struct drm_device *dev;
337 unit = device_get_unit(kdev);
338 dev = device_get_softc(kdev);
340 dev->devnode = make_dev(&drm_cdevsw, unit, DRM_DEV_UID, DRM_DEV_GID,
341 DRM_DEV_MODE, "dri/card%d", unit);
344 dev->devnode->si_drv1 = dev;
349 #define DRM_DEV_NAME "drm"
352 devclass_t drm_devclass;
354 drm_pci_id_list_t *drm_find_description(int vendor, int device,
355 drm_pci_id_list_t *idlist)
359 for (i = 0; idlist[i].vendor != 0; i++) {
360 if ((idlist[i].vendor == vendor) &&
361 ((idlist[i].device == device) ||
362 (idlist[i].device == 0))) {
370 * Take down the DRM device.
372 * \param dev DRM device structure.
374 * Frees every resource in \p dev.
378 int drm_lastclose(struct drm_device * dev)
380 drm_magic_entry_t *pt, *next;
385 if (dev->driver->lastclose != NULL)
386 dev->driver->lastclose(dev);
388 if (!drm_core_check_feature(dev, DRIVER_MODESET) && dev->irq_enabled)
389 drm_irq_uninstall(dev);
393 drm_free(dev->unique, M_DRM);
398 for (i = 0; i < DRM_HASH_SIZE; i++) {
399 for (pt = dev->magiclist[i].head; pt; pt = next) {
403 dev->magiclist[i].head = dev->magiclist[i].tail = NULL;
406 /* Clear AGP information */
408 drm_agp_mem_t *entry;
409 drm_agp_mem_t *nexte;
411 /* Remove AGP resources, but leave dev->agp intact until
412 * drm_unload is called.
414 for (entry = dev->agp->memory; entry; entry = nexte) {
417 drm_agp_unbind_memory(entry->handle);
418 drm_agp_free_memory(entry->handle);
419 drm_free(entry, M_DRM);
421 dev->agp->memory = NULL;
423 if (dev->agp->acquired)
424 drm_agp_release(dev);
426 dev->agp->acquired = 0;
427 dev->agp->enabled = 0;
429 if (dev->sg != NULL) {
430 drm_sg_cleanup(dev->sg);
434 drm_dma_takedown(dev);
435 if (dev->lock.hw_lock) {
436 dev->lock.hw_lock = NULL; /* SHM removed */
437 dev->lock.file_priv = NULL;
438 DRM_WAKEUP_INT((void *)&dev->lock.lock_queue);
445 static int drm_load(struct drm_device *dev)
451 INIT_LIST_HEAD(&dev->maplist);
454 drm_sysctl_init(dev);
455 INIT_LIST_HEAD(&dev->filelist);
458 dev->types[0] = _DRM_STAT_LOCK;
459 dev->types[1] = _DRM_STAT_OPENS;
460 dev->types[2] = _DRM_STAT_CLOSES;
461 dev->types[3] = _DRM_STAT_IOCTLS;
462 dev->types[4] = _DRM_STAT_LOCKS;
463 dev->types[5] = _DRM_STAT_UNLOCKS;
465 for (i = 0; i < DRM_ARRAY_SIZE(dev->counts); i++)
466 atomic_set(&dev->counts[i], 0);
468 INIT_LIST_HEAD(&dev->vblank_event_list);
470 if (drm_core_has_AGP(dev)) {
471 if (drm_device_is_agp(dev))
472 dev->agp = drm_agp_init();
473 if (drm_core_check_feature(dev, DRIVER_REQUIRE_AGP) &&
475 DRM_ERROR("Card isn't AGP, or couldn't initialize "
480 if (dev->agp != NULL && dev->agp->agp_info.ai_aperture_base != 0) {
481 if (drm_mtrr_add(dev->agp->agp_info.ai_aperture_base,
482 dev->agp->agp_info.ai_aperture_size, DRM_MTRR_WC) == 0)
483 dev->agp->agp_mtrr = 1;
487 retcode = drm_ctxbitmap_init(dev);
489 DRM_ERROR("Cannot allocate memory for context bitmap.\n");
493 if (dev->driver->driver_features & DRIVER_GEM) {
494 retcode = drm_gem_init(dev);
496 DRM_ERROR("Cannot initialize graphics execution "
502 if (dev->driver->load != NULL) {
504 /* Shared code returns -errno. */
505 retcode = -dev->driver->load(dev,
506 dev->id_entry->driver_private);
507 if (pci_enable_busmaster(dev->dev))
508 DRM_ERROR("Request to enable bus-master failed.\n");
514 DRM_INFO("Initialized %s %d.%d.%d %s\n",
518 dev->driver->patchlevel,
524 drm_gem_destroy(dev);
526 drm_ctxbitmap_cleanup(dev);
527 drm_sysctl_cleanup(dev);
531 if (dev->devnode != NULL)
532 destroy_dev(dev->devnode);
534 lockuninit(&dev->vbl_lock);
535 lockuninit(&dev->dev_lock);
536 lockuninit(&dev->event_lock);
537 lockuninit(&dev->struct_mutex);
542 int drm_version(struct drm_device *dev, void *data, struct drm_file *file_priv)
544 struct drm_version *version = data;
547 #define DRM_COPY( name, value ) \
548 len = strlen( value ); \
549 if ( len > name##_len ) len = name##_len; \
550 name##_len = strlen( value ); \
551 if ( len && name ) { \
552 if ( DRM_COPY_TO_USER( name, value, len ) ) \
556 version->version_major = dev->driver->major;
557 version->version_minor = dev->driver->minor;
558 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);
568 * Stub is needed for devfs
570 int drm_close(struct dev_close_args *ap)
575 void drm_cdevpriv_dtor(void *cd)
577 struct drm_file *file_priv = cd;
578 struct drm_device *dev = file_priv->dev;
581 DRM_DEBUG("open_count = %d\n", dev->open_count);
585 if (dev->driver->preclose != NULL)
586 dev->driver->preclose(dev, file_priv);
588 /* ========================================================
589 * Begin inline drm_release
592 DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n",
593 DRM_CURRENTPID, (long)dev->dev, dev->open_count);
595 if (dev->driver->driver_features & DRIVER_GEM)
596 drm_gem_release(dev, file_priv);
598 if (dev->lock.hw_lock && _DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)
599 && dev->lock.file_priv == file_priv) {
600 DRM_DEBUG("Process %d dead, freeing lock for context %d\n",
602 _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
603 if (dev->driver->reclaim_buffers_locked != NULL)
604 dev->driver->reclaim_buffers_locked(dev, file_priv);
606 drm_lock_free(&dev->lock,
607 _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
609 /* FIXME: may require heavy-handed reset of
610 hardware at this point, possibly
611 processed via a callback to the X
613 } else if (dev->driver->reclaim_buffers_locked != NULL &&
614 dev->lock.hw_lock != NULL) {
615 /* The lock is required to reclaim buffers */
617 if (!dev->lock.hw_lock) {
618 /* Device has been unregistered */
622 if (drm_lock_take(&dev->lock, DRM_KERNEL_CONTEXT)) {
623 dev->lock.file_priv = file_priv;
624 dev->lock.lock_time = jiffies;
625 atomic_inc(&dev->counts[_DRM_STAT_LOCKS]);
626 break; /* Got lock */
629 retcode = DRM_LOCK_SLEEP(dev, &dev->lock.lock_queue,
630 PCATCH, "drmlk2", 0);
635 dev->driver->reclaim_buffers_locked(dev, file_priv);
636 drm_lock_free(&dev->lock, DRM_KERNEL_CONTEXT);
640 if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) &&
641 !dev->driver->reclaim_buffers_locked)
642 drm_reclaim_buffers(dev, file_priv);
644 funsetown(&dev->buf_sigio);
646 if (dev->driver->postclose != NULL)
647 dev->driver->postclose(dev, file_priv);
648 list_del(&file_priv->lhead);
651 /* ========================================================
652 * End inline drm_release
655 atomic_inc(&dev->counts[_DRM_STAT_CLOSES]);
656 device_unbusy(dev->dev);
657 if (--dev->open_count == 0) {
658 retcode = drm_lastclose(dev);
664 /* drm_ioctl is called whenever a process performs an ioctl on /dev/drm.
666 int drm_ioctl(struct dev_ioctl_args *ap)
668 struct cdev *kdev = ap->a_head.a_dev;
669 u_long cmd = ap->a_cmd;
670 caddr_t data = ap->a_data;
671 struct thread *p = curthread;
672 struct drm_device *dev = drm_get_device_from_kdev(kdev);
674 drm_ioctl_desc_t *ioctl;
675 int (*func)(struct drm_device *dev, void *data, struct drm_file *file_priv);
676 int nr = DRM_IOCTL_NR(cmd);
677 int is_driver_ioctl = 0;
678 struct drm_file *file_priv;
680 retcode = devfs_get_cdevpriv(ap->a_fp, (void **)&file_priv);
682 DRM_ERROR("can't find authenticator\n");
686 atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]);
687 ++file_priv->ioctl_count;
689 DRM_DEBUG("pid=%d, cmd=0x%02lx, nr=0x%02x, dev 0x%lx, auth=%d\n",
690 DRM_CURRENTPID, cmd, nr, (long)dev->dev,
691 file_priv->authenticated);
699 return fsetown(*(int *)data, &dev->buf_sigio);
702 *(int *) data = fgetown(&dev->buf_sigio);
706 if (IOCGROUP(cmd) != DRM_IOCTL_BASE) {
707 DRM_DEBUG("Bad ioctl group 0x%x\n", (int)IOCGROUP(cmd));
711 ioctl = &drm_ioctls[nr];
712 /* It's not a core DRM ioctl, try driver-specific. */
713 if (ioctl->func == NULL && nr >= DRM_COMMAND_BASE) {
714 /* The array entries begin at DRM_COMMAND_BASE ioctl nr */
715 nr -= DRM_COMMAND_BASE;
716 if (nr > dev->driver->num_ioctls) {
719 ioctl = &dev->driver->ioctls[nr];
725 DRM_DEBUG("no function\n");
729 if (((ioctl->flags & DRM_ROOT_ONLY) && !DRM_SUSER(p)) ||
730 ((ioctl->flags & DRM_AUTH) && !file_priv->authenticated) ||
731 ((ioctl->flags & DRM_MASTER) && !file_priv->master))
734 if (is_driver_ioctl) {
735 if ((ioctl->flags & DRM_UNLOCKED) == 0)
737 /* shared code returns -errno */
738 retcode = -func(dev, data, file_priv);
739 if ((ioctl->flags & DRM_UNLOCKED) == 0)
742 retcode = func(dev, data, file_priv);
746 DRM_DEBUG(" returning %d\n", retcode);
748 (drm_debug & DRM_DEBUGBITS_FAILED_IOCTL) != 0) {
750 "pid %d, cmd 0x%02lx, nr 0x%02x/%1d, dev 0x%lx, auth %d, res %d\n",
751 DRM_CURRENTPID, cmd, nr, is_driver_ioctl, (long)dev->dev,
752 file_priv->authenticated, retcode);
758 drm_local_map_t *drm_getsarea(struct drm_device *dev)
760 struct drm_map_list *entry;
762 list_for_each_entry(entry, &dev->maplist, head) {
763 if (entry->map && entry->map->type == _DRM_SHM &&
764 (entry->map->flags & _DRM_CONTAINS_LOCK)) {
773 drm_add_busid_modesetting(struct drm_device *dev, struct sysctl_ctx_list *ctx,
774 struct sysctl_oid *top)
776 struct sysctl_oid *oid;
778 ksnprintf(dev->busid_str, sizeof(dev->busid_str),
779 "pci:%04x:%02x:%02x.%d", dev->pci_domain, dev->pci_bus,
780 dev->pci_slot, dev->pci_func);
781 oid = SYSCTL_ADD_STRING(ctx, SYSCTL_CHILDREN(top), OID_AUTO, "busid",
782 CTLFLAG_RD, dev->busid_str, 0, NULL);
785 dev->modesetting = (dev->driver->driver_features & DRIVER_MODESET) != 0;
786 oid = SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(top), OID_AUTO,
787 "modesetting", CTLFLAG_RD, &dev->modesetting, 0, NULL);
795 drm_mmap_single(struct dev_mmap_single_args *ap)
797 struct drm_device *dev;
798 struct cdev *kdev = ap->a_head.a_dev;
799 vm_ooffset_t *offset = ap->a_offset;
800 vm_size_t size = ap->a_size;
801 struct vm_object **obj_res = ap->a_object;
802 int nprot = ap->a_nprot;
804 dev = drm_get_device_from_kdev(kdev);
805 if (dev->drm_ttm_bdev != NULL) {
806 return (ttm_bo_mmap_single(dev->drm_ttm_bdev, offset, size,
808 } else if ((dev->driver->driver_features & DRIVER_GEM) != 0) {
809 return (drm_gem_mmap_single(dev, offset, size, obj_res, nprot));
817 #include <sys/sysproto.h>
819 MODULE_DEPEND(DRIVER_NAME, linux, 1, 1, 1);
821 #define LINUX_IOCTL_DRM_MIN 0x6400
822 #define LINUX_IOCTL_DRM_MAX 0x64ff
824 static linux_ioctl_function_t drm_linux_ioctl;
825 static struct linux_ioctl_handler drm_handler = {drm_linux_ioctl,
826 LINUX_IOCTL_DRM_MIN, LINUX_IOCTL_DRM_MAX};
828 /* The bits for in/out are switched on Linux */
829 #define LINUX_IOC_IN IOC_OUT
830 #define LINUX_IOC_OUT IOC_IN
833 drm_linux_ioctl(DRM_STRUCTPROC *p, struct linux_ioctl_args* args)
838 args->cmd &= ~(LINUX_IOC_IN | LINUX_IOC_OUT);
839 if (cmd & LINUX_IOC_IN)
841 if (cmd & LINUX_IOC_OUT)
842 args->cmd |= IOC_OUT;
844 error = ioctl(p, (struct ioctl_args *)args);
848 #endif /* DRM_LINUX */
851 drm_core_init(void *arg)
857 linux_ioctl_register_handler(&drm_handler);
858 #endif /* DRM_LINUX */
860 DRM_INFO("Initialized %s %d.%d.%d %s\n",
861 CORE_NAME, CORE_MAJOR, CORE_MINOR, CORE_PATCHLEVEL, CORE_DATE);
866 drm_core_exit(void *arg)
870 linux_ioctl_unregister_handler(&drm_handler);
871 #endif /* DRM_LINUX */
873 drm_global_release();
876 SYSINIT(drm_register, SI_SUB_DRIVERS, SI_ORDER_MIDDLE,
877 drm_core_init, NULL);
878 SYSUNINIT(drm_unregister, SI_SUB_DRIVERS, SI_ORDER_MIDDLE,
879 drm_core_exit, NULL);
882 * Check if dmi_system_id structure matches system DMI data
885 dmi_found(const struct dmi_system_id *dsi)
889 char *sys_vendor, *board_vendor, *product_name, *board_name;
891 sys_vendor = kgetenv("smbios.system.maker");
892 board_vendor = kgetenv("smbios.planar.maker");
893 product_name = kgetenv("smbios.system.product");
894 board_name = kgetenv("smbios.planar.product");
896 for (i = 0; i < NELEM(dsi->matches); i++) {
897 slot = dsi->matches[i].slot;
902 if (sys_vendor != NULL &&
903 !strcmp(sys_vendor, dsi->matches[i].substr))
907 case DMI_BOARD_VENDOR:
908 if (board_vendor != NULL &&
909 !strcmp(board_vendor, dsi->matches[i].substr))
913 case DMI_PRODUCT_NAME:
914 if (product_name != NULL &&
915 !strcmp(product_name, dsi->matches[i].substr))
920 if (board_name != NULL &&
921 !strcmp(board_name, dsi->matches[i].substr))
932 if (sys_vendor != NULL)
933 kfreeenv(sys_vendor);
934 if (board_vendor != NULL)
935 kfreeenv(board_vendor);
936 if (product_name != NULL)
937 kfreeenv(product_name);
938 if (board_name != NULL)
939 kfreeenv(board_name);
945 dmi_check_system(const struct dmi_system_id *sysid)
947 const struct dmi_system_id *dsi;
950 for (dsi = sysid; dsi->matches[0].slot != 0 ; dsi++) {
951 if (dmi_found(dsi)) {
953 if (dsi->callback && dsi->callback(dsi))