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.
39 #include <linux/export.h>
42 #include <drm/drm_core.h>
44 int drm_notyet_flag = 0;
46 static int drm_load(struct drm_device *dev);
47 drm_pci_id_list_t *drm_find_description(int vendor, int device,
48 drm_pci_id_list_t *idlist);
50 #define DRIVER_SOFTC(unit) \
51 ((struct drm_device *)devclass_get_softc(drm_devclass, unit))
54 drm_modevent(module_t mod, int type, void *data)
59 TUNABLE_INT_FETCH("drm.debug", &drm_debug);
60 TUNABLE_INT_FETCH("drm.notyet", &drm_notyet_flag);
66 static moduledata_t drm_mod = {
71 DECLARE_MODULE(drm, drm_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
72 MODULE_VERSION(drm, 1);
73 MODULE_DEPEND(drm, agp, 1, 1, 1);
74 MODULE_DEPEND(drm, pci, 1, 1, 1);
75 MODULE_DEPEND(drm, iicbus, 1, 1, 1);
77 static drm_ioctl_desc_t drm_ioctls[256] = {
78 DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version, 0),
79 DRM_IOCTL_DEF(DRM_IOCTL_GET_UNIQUE, drm_getunique, 0),
80 DRM_IOCTL_DEF(DRM_IOCTL_GET_MAGIC, drm_getmagic, 0),
81 DRM_IOCTL_DEF(DRM_IOCTL_IRQ_BUSID, drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY),
82 DRM_IOCTL_DEF(DRM_IOCTL_GET_MAP, drm_getmap, 0),
83 DRM_IOCTL_DEF(DRM_IOCTL_GET_CLIENT, drm_getclient, 0),
84 DRM_IOCTL_DEF(DRM_IOCTL_GET_STATS, drm_getstats, 0),
85 DRM_IOCTL_DEF(DRM_IOCTL_GET_CAP, drm_getcap, DRM_UNLOCKED),
86 DRM_IOCTL_DEF(DRM_IOCTL_SET_VERSION, drm_setversion, DRM_MASTER|DRM_ROOT_ONLY),
88 DRM_IOCTL_DEF(DRM_IOCTL_SET_UNIQUE, drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
89 DRM_IOCTL_DEF(DRM_IOCTL_BLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
90 DRM_IOCTL_DEF(DRM_IOCTL_UNBLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
91 DRM_IOCTL_DEF(DRM_IOCTL_AUTH_MAGIC, drm_authmagic, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
93 DRM_IOCTL_DEF(DRM_IOCTL_ADD_MAP, drm_addmap_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
94 DRM_IOCTL_DEF(DRM_IOCTL_RM_MAP, drm_rmmap_ioctl, DRM_AUTH),
96 DRM_IOCTL_DEF(DRM_IOCTL_SET_SAREA_CTX, drm_setsareactx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
97 DRM_IOCTL_DEF(DRM_IOCTL_GET_SAREA_CTX, drm_getsareactx, DRM_AUTH),
99 DRM_IOCTL_DEF(DRM_IOCTL_SET_MASTER, drm_setmaster_ioctl, DRM_ROOT_ONLY),
100 DRM_IOCTL_DEF(DRM_IOCTL_DROP_MASTER, drm_dropmaster_ioctl, DRM_ROOT_ONLY),
102 DRM_IOCTL_DEF(DRM_IOCTL_ADD_CTX, drm_addctx, DRM_AUTH|DRM_ROOT_ONLY),
103 DRM_IOCTL_DEF(DRM_IOCTL_RM_CTX, drm_rmctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
104 DRM_IOCTL_DEF(DRM_IOCTL_MOD_CTX, drm_modctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
105 DRM_IOCTL_DEF(DRM_IOCTL_GET_CTX, drm_getctx, DRM_AUTH),
106 DRM_IOCTL_DEF(DRM_IOCTL_SWITCH_CTX, drm_switchctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
107 DRM_IOCTL_DEF(DRM_IOCTL_NEW_CTX, drm_newctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
108 DRM_IOCTL_DEF(DRM_IOCTL_RES_CTX, drm_resctx, DRM_AUTH),
110 DRM_IOCTL_DEF(DRM_IOCTL_ADD_DRAW, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
111 DRM_IOCTL_DEF(DRM_IOCTL_RM_DRAW, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
113 DRM_IOCTL_DEF(DRM_IOCTL_LOCK, drm_lock, DRM_AUTH),
114 DRM_IOCTL_DEF(DRM_IOCTL_UNLOCK, drm_unlock, DRM_AUTH),
116 DRM_IOCTL_DEF(DRM_IOCTL_FINISH, drm_noop, DRM_AUTH),
118 DRM_IOCTL_DEF(DRM_IOCTL_ADD_BUFS, drm_addbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
119 DRM_IOCTL_DEF(DRM_IOCTL_MARK_BUFS, drm_markbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
120 DRM_IOCTL_DEF(DRM_IOCTL_INFO_BUFS, drm_infobufs, DRM_AUTH),
121 DRM_IOCTL_DEF(DRM_IOCTL_MAP_BUFS, drm_mapbufs, DRM_AUTH),
122 DRM_IOCTL_DEF(DRM_IOCTL_FREE_BUFS, drm_freebufs, DRM_AUTH),
123 DRM_IOCTL_DEF(DRM_IOCTL_DMA, drm_dma, DRM_AUTH),
125 DRM_IOCTL_DEF(DRM_IOCTL_CONTROL, drm_control, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
127 DRM_IOCTL_DEF(DRM_IOCTL_AGP_ACQUIRE, drm_agp_acquire_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
128 DRM_IOCTL_DEF(DRM_IOCTL_AGP_RELEASE, drm_agp_release_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
129 DRM_IOCTL_DEF(DRM_IOCTL_AGP_ENABLE, drm_agp_enable_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
130 DRM_IOCTL_DEF(DRM_IOCTL_AGP_INFO, drm_agp_info_ioctl, DRM_AUTH),
131 DRM_IOCTL_DEF(DRM_IOCTL_AGP_ALLOC, drm_agp_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
132 DRM_IOCTL_DEF(DRM_IOCTL_AGP_FREE, drm_agp_free_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
133 DRM_IOCTL_DEF(DRM_IOCTL_AGP_BIND, drm_agp_bind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
134 DRM_IOCTL_DEF(DRM_IOCTL_AGP_UNBIND, drm_agp_unbind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
136 DRM_IOCTL_DEF(DRM_IOCTL_SG_ALLOC, drm_sg_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
137 DRM_IOCTL_DEF(DRM_IOCTL_SG_FREE, drm_sg_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
138 DRM_IOCTL_DEF(DRM_IOCTL_WAIT_VBLANK, drm_wait_vblank, DRM_UNLOCKED),
139 DRM_IOCTL_DEF(DRM_IOCTL_MODESET_CTL, drm_modeset_ctl, 0),
141 DRM_IOCTL_DEF(DRM_IOCTL_UPDATE_DRAW, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
143 DRM_IOCTL_DEF(DRM_IOCTL_GEM_CLOSE, drm_gem_close_ioctl, DRM_UNLOCKED),
144 DRM_IOCTL_DEF(DRM_IOCTL_GEM_FLINK, drm_gem_flink_ioctl, DRM_AUTH|DRM_UNLOCKED),
145 DRM_IOCTL_DEF(DRM_IOCTL_GEM_OPEN, drm_gem_open_ioctl, DRM_AUTH|DRM_UNLOCKED),
147 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETRESOURCES, drm_mode_getresources, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
148 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPLANERESOURCES, drm_mode_getplane_res, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
149 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCRTC, drm_mode_getcrtc, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
150 DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETCRTC, drm_mode_setcrtc, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
151 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPLANE, drm_mode_getplane, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
152 DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETPLANE, drm_mode_setplane, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
153 DRM_IOCTL_DEF(DRM_IOCTL_MODE_CURSOR, drm_mode_cursor_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
154 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETGAMMA, drm_mode_gamma_get_ioctl, DRM_MASTER|DRM_UNLOCKED),
155 DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETGAMMA, drm_mode_gamma_set_ioctl, DRM_MASTER|DRM_UNLOCKED),
156 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETENCODER, drm_mode_getencoder, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
157 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCONNECTOR, drm_mode_getconnector, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
158 DRM_IOCTL_DEF(DRM_IOCTL_MODE_ATTACHMODE, drm_noop, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
159 DRM_IOCTL_DEF(DRM_IOCTL_MODE_DETACHMODE, drm_noop, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
160 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPERTY, drm_mode_getproperty_ioctl, DRM_MASTER | DRM_CONTROL_ALLOW|DRM_UNLOCKED),
161 DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETPROPERTY, drm_mode_connector_property_set_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
162 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPBLOB, drm_mode_getblob_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
163 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETFB, drm_mode_getfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
164 DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB, drm_mode_addfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
165 DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB2, drm_mode_addfb2, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
166 DRM_IOCTL_DEF(DRM_IOCTL_MODE_RMFB, drm_mode_rmfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
167 DRM_IOCTL_DEF(DRM_IOCTL_MODE_PAGE_FLIP, drm_mode_page_flip_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
168 DRM_IOCTL_DEF(DRM_IOCTL_MODE_DIRTYFB, drm_mode_dirtyfb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
169 DRM_IOCTL_DEF(DRM_IOCTL_MODE_CREATE_DUMB, drm_mode_create_dumb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
170 DRM_IOCTL_DEF(DRM_IOCTL_MODE_MAP_DUMB, drm_mode_mmap_dumb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
171 DRM_IOCTL_DEF(DRM_IOCTL_MODE_DESTROY_DUMB, drm_mode_destroy_dumb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
174 struct dev_ops drm_cdevsw = {
175 { "drm", 0, D_TRACKCLOSE | D_MPSAFE },
177 .d_close = drm_close,
179 .d_ioctl = drm_ioctl,
180 .d_kqfilter = drm_kqfilter,
182 .d_mmap_single = drm_mmap_single,
185 static int drm_msi = 1; /* Enable by default. */
186 TUNABLE_INT("hw.drm.msi", &drm_msi);
187 SYSCTL_NODE(_hw, OID_AUTO, drm, CTLFLAG_RW, NULL, "DRM device");
188 SYSCTL_INT(_hw_drm, OID_AUTO, msi, CTLFLAG_RD, &drm_msi, 1,
189 "Enable MSI interrupts for drm devices");
191 static struct drm_msi_blacklist_entry drm_msi_blacklist[] = {
192 {0x8086, 0x2772}, /* Intel i945G */ \
193 {0x8086, 0x27A2}, /* Intel i945GM */ \
194 {0x8086, 0x27AE}, /* Intel i945GME */ \
198 static int drm_msi_is_blacklisted(struct drm_device *dev, unsigned long flags)
202 if (dev->driver->use_msi != NULL) {
205 use_msi = dev->driver->use_msi(dev, flags);
210 /* TODO: Maybe move this to a callback in i915? */
211 for (i = 0; drm_msi_blacklist[i].vendor != 0; i++) {
212 if ((drm_msi_blacklist[i].vendor == dev->pci_vendor) &&
213 (drm_msi_blacklist[i].device == dev->pci_device)) {
221 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist)
223 drm_pci_id_list_t *id_entry;
226 vendor = pci_get_vendor(kdev);
227 device = pci_get_device(kdev);
229 if (pci_get_class(kdev) != PCIC_DISPLAY)
232 id_entry = drm_find_description(vendor, device, idlist);
233 if (id_entry != NULL) {
234 if (!device_get_desc(kdev)) {
235 DRM_DEBUG("desc : %s\n", device_get_desc(kdev));
236 device_set_desc(kdev, id_entry->name);
244 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist)
246 struct drm_device *dev;
247 drm_pci_id_list_t *id_entry;
248 int unit, error, msicount;
251 unit = device_get_unit(kdev);
252 dev = device_get_softc(kdev);
254 if (!strcmp(device_get_name(kdev), "drmsub"))
255 dev->dev = device_get_parent(kdev);
259 dev->pci_domain = pci_get_domain(dev->dev);
260 dev->pci_bus = pci_get_bus(dev->dev);
261 dev->pci_slot = pci_get_slot(dev->dev);
262 dev->pci_func = pci_get_function(dev->dev);
264 dev->pci_vendor = pci_get_vendor(dev->dev);
265 dev->pci_device = pci_get_device(dev->dev);
266 dev->pci_subvendor = pci_get_subvendor(dev->dev);
267 dev->pci_subdevice = pci_get_subdevice(dev->dev);
269 id_entry = drm_find_description(dev->pci_vendor,
270 dev->pci_device, idlist);
271 dev->id_entry = id_entry;
273 if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ)) {
275 !drm_msi_is_blacklisted(dev, dev->id_entry->driver_private)) {
276 msicount = pci_msi_count(dev->dev);
277 DRM_DEBUG("MSI count = %d\n", msicount);
281 if (pci_alloc_msi(dev->dev, &rid, msicount, -1) == 0) {
282 DRM_INFO("MSI enabled %d message(s)\n",
284 dev->msi_enabled = 1;
289 dev->irqr = bus_alloc_resource_any(dev->dev, SYS_RES_IRQ,
290 &dev->irqrid, RF_SHAREABLE);
295 dev->irq = (int) rman_get_start(dev->irqr);
298 lockinit(&dev->dev_lock, "drmdev", 0, LK_CANRECURSE);
299 lwkt_serialize_init(&dev->irq_lock);
300 lockinit(&dev->vbl_lock, "drmvbl", 0, LK_CANRECURSE);
301 lockinit(&dev->event_lock, "drmev", 0, LK_CANRECURSE);
302 lockinit(&dev->struct_mutex, "drmslk", 0, LK_CANRECURSE);
304 error = drm_load(dev);
311 bus_release_resource(dev->dev, SYS_RES_IRQ,
312 dev->irqrid, dev->irqr);
314 if (dev->msi_enabled) {
315 pci_release_msi(dev->dev);
321 #define DRM_DEV_NAME "drm"
324 devclass_t drm_devclass;
326 drm_pci_id_list_t *drm_find_description(int vendor, int device,
327 drm_pci_id_list_t *idlist)
331 for (i = 0; idlist[i].vendor != 0; i++) {
332 if ((idlist[i].vendor == vendor) &&
333 ((idlist[i].device == device) ||
334 (idlist[i].device == 0))) {
342 * Take down the DRM device.
344 * \param dev DRM device structure.
346 * Frees every resource in \p dev.
350 int drm_lastclose(struct drm_device * dev)
355 if (dev->driver->lastclose != NULL)
356 dev->driver->lastclose(dev);
357 DRM_DEBUG("driver lastclose completed\n");
359 if (dev->irq_enabled && !drm_core_check_feature(dev, DRIVER_MODESET))
360 drm_irq_uninstall(dev);
362 mutex_lock(&dev->struct_mutex);
364 /* Clear AGP information */
366 drm_agp_mem_t *entry;
367 drm_agp_mem_t *nexte;
369 /* Remove AGP resources, but leave dev->agp intact until
370 * drm_unload is called.
372 for (entry = dev->agp->memory; entry; entry = nexte) {
375 drm_agp_unbind_memory(entry->handle);
376 drm_agp_free_memory(entry->handle);
377 drm_free(entry, M_DRM);
379 dev->agp->memory = NULL;
381 if (dev->agp->acquired)
382 drm_agp_release(dev);
384 dev->agp->acquired = 0;
385 dev->agp->enabled = 0;
387 if (dev->sg != NULL) {
388 drm_sg_cleanup(dev->sg);
392 drm_dma_takedown(dev);
394 mutex_unlock(&dev->struct_mutex);
396 DRM_DEBUG("lastclose completed\n");
401 static int drm_load(struct drm_device *dev)
407 INIT_LIST_HEAD(&dev->maplist);
410 drm_sysctl_init(dev);
411 INIT_LIST_HEAD(&dev->filelist);
414 dev->types[0] = _DRM_STAT_LOCK;
415 dev->types[1] = _DRM_STAT_OPENS;
416 dev->types[2] = _DRM_STAT_CLOSES;
417 dev->types[3] = _DRM_STAT_IOCTLS;
418 dev->types[4] = _DRM_STAT_LOCKS;
419 dev->types[5] = _DRM_STAT_UNLOCKS;
421 for (i = 0; i < DRM_ARRAY_SIZE(dev->counts); i++)
422 atomic_set(&dev->counts[i], 0);
424 INIT_LIST_HEAD(&dev->vblank_event_list);
426 if (drm_core_has_AGP(dev)) {
427 if (drm_device_is_agp(dev))
428 dev->agp = drm_agp_init();
429 if (drm_core_check_feature(dev, DRIVER_REQUIRE_AGP) &&
431 DRM_ERROR("Card isn't AGP, or couldn't initialize "
436 if (dev->agp != NULL && dev->agp->agp_info.ai_aperture_base != 0) {
437 if (drm_mtrr_add(dev->agp->agp_info.ai_aperture_base,
438 dev->agp->agp_info.ai_aperture_size, DRM_MTRR_WC) == 0)
439 dev->agp->agp_mtrr = 1;
443 retcode = drm_ctxbitmap_init(dev);
445 DRM_ERROR("Cannot allocate memory for context bitmap.\n");
449 if (dev->driver->driver_features & DRIVER_GEM) {
450 retcode = drm_gem_init(dev);
452 DRM_ERROR("Cannot initialize graphics execution "
458 if (dev->driver->load != NULL) {
460 /* Shared code returns -errno. */
461 retcode = -dev->driver->load(dev,
462 dev->id_entry->driver_private);
463 if (pci_enable_busmaster(dev->dev))
464 DRM_ERROR("Request to enable bus-master failed.\n");
470 DRM_INFO("Initialized %s %d.%d.%d %s\n",
474 dev->driver->patchlevel,
480 drm_gem_destroy(dev);
482 drm_ctxbitmap_cleanup(dev);
483 drm_sysctl_cleanup(dev);
487 if (dev->devnode != NULL)
488 destroy_dev(dev->devnode);
490 lockuninit(&dev->vbl_lock);
491 lockuninit(&dev->dev_lock);
492 lockuninit(&dev->event_lock);
493 lockuninit(&dev->struct_mutex);
498 int drm_version(struct drm_device *dev, void *data, struct drm_file *file_priv)
500 struct drm_version *version = data;
503 #define DRM_COPY( name, value ) \
504 len = strlen( value ); \
505 if ( len > name##_len ) len = name##_len; \
506 name##_len = strlen( value ); \
507 if ( len && name ) { \
508 if ( DRM_COPY_TO_USER( name, value, len ) ) \
512 version->version_major = dev->driver->major;
513 version->version_minor = dev->driver->minor;
514 version->version_patchlevel = dev->driver->patchlevel;
516 DRM_COPY(version->name, dev->driver->name);
517 DRM_COPY(version->date, dev->driver->date);
518 DRM_COPY(version->desc, dev->driver->desc);
524 * Stub is needed for devfs
526 int drm_close(struct dev_close_args *ap)
531 /* drm_ioctl is called whenever a process performs an ioctl on /dev/drm.
533 int drm_ioctl(struct dev_ioctl_args *ap)
535 struct file *filp = ap->a_fp;
536 struct drm_file *file_priv = filp->private_data;
537 struct drm_device *dev;
538 u_long cmd = ap->a_cmd;
539 caddr_t data = ap->a_data;
540 struct thread *p = curthread;
542 drm_ioctl_desc_t *ioctl;
543 int (*func)(struct drm_device *dev, void *data, struct drm_file *file_priv);
544 int nr = DRM_IOCTL_NR(cmd);
545 int is_driver_ioctl = 0;
547 dev = file_priv->minor->dev;
551 atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]);
552 ++file_priv->ioctl_count;
554 DRM_DEBUG("pid=%d, cmd=0x%02lx, nr=0x%02x, dev 0x%lx, auth=%d\n",
555 DRM_CURRENTPID, cmd, nr, (long)dev->dev,
556 file_priv->authenticated);
564 return fsetown(*(int *)data, &dev->buf_sigio);
567 *(int *) data = fgetown(&dev->buf_sigio);
571 if (IOCGROUP(cmd) != DRM_IOCTL_BASE) {
572 DRM_DEBUG("Bad ioctl group 0x%x\n", (int)IOCGROUP(cmd));
576 ioctl = &drm_ioctls[nr];
577 /* It's not a core DRM ioctl, try driver-specific. */
578 if (ioctl->func == NULL && nr >= DRM_COMMAND_BASE) {
579 /* The array entries begin at DRM_COMMAND_BASE ioctl nr */
580 nr -= DRM_COMMAND_BASE;
581 if (nr > dev->driver->num_ioctls) {
584 ioctl = &dev->driver->ioctls[nr];
590 DRM_DEBUG("no function\n");
594 if (((ioctl->flags & DRM_ROOT_ONLY) && !DRM_SUSER(p)) ||
595 ((ioctl->flags & DRM_AUTH) && !file_priv->authenticated) ||
596 ((ioctl->flags & DRM_MASTER) && !file_priv->master))
599 if (is_driver_ioctl) {
600 if ((ioctl->flags & DRM_UNLOCKED) == 0)
602 /* shared code returns -errno */
603 retcode = -func(dev, data, file_priv);
604 if ((ioctl->flags & DRM_UNLOCKED) == 0)
607 retcode = func(dev, data, file_priv);
611 DRM_DEBUG(" returning %d\n", retcode);
613 (drm_debug & DRM_DEBUGBITS_FAILED_IOCTL) != 0) {
615 "pid %d, cmd 0x%02lx, nr 0x%02x/%1d, dev 0x%lx, auth %d, res %d\n",
616 DRM_CURRENTPID, cmd, nr, is_driver_ioctl, (long)dev->dev,
617 file_priv->authenticated, retcode);
623 drm_local_map_t *drm_getsarea(struct drm_device *dev)
625 struct drm_map_list *entry;
627 list_for_each_entry(entry, &dev->maplist, head) {
628 if (entry->map && entry->map->type == _DRM_SHM &&
629 (entry->map->flags & _DRM_CONTAINS_LOCK)) {
638 drm_add_busid_modesetting(struct drm_device *dev, struct sysctl_ctx_list *ctx,
639 struct sysctl_oid *top)
641 struct sysctl_oid *oid;
643 ksnprintf(dev->busid_str, sizeof(dev->busid_str),
644 "pci:%04x:%02x:%02x.%d", dev->pci_domain, dev->pci_bus,
645 dev->pci_slot, dev->pci_func);
646 oid = SYSCTL_ADD_STRING(ctx, SYSCTL_CHILDREN(top), OID_AUTO, "busid",
647 CTLFLAG_RD, dev->busid_str, 0, NULL);
650 dev->modesetting = (dev->driver->driver_features & DRIVER_MODESET) != 0;
651 oid = SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(top), OID_AUTO,
652 "modesetting", CTLFLAG_RD, &dev->modesetting, 0, NULL);
660 drm_mmap_single(struct dev_mmap_single_args *ap)
662 struct cdev *kdev = ap->a_head.a_dev;
663 struct drm_device *dev = drm_get_device_from_kdev(kdev);
664 vm_ooffset_t *offset = ap->a_offset;
665 vm_size_t size = ap->a_size;
666 struct vm_object **obj_res = ap->a_object;
667 int nprot = ap->a_nprot;
669 if (dev->drm_ttm_bdev != NULL) {
670 return (ttm_bo_mmap_single(dev->drm_ttm_bdev, offset, size,
672 } else if ((dev->driver->driver_features & DRIVER_GEM) != 0) {
673 return (drm_gem_mmap_single(dev, offset, size, obj_res, nprot));
681 #include <sys/sysproto.h>
683 MODULE_DEPEND(DRIVER_NAME, linux, 1, 1, 1);
685 #define LINUX_IOCTL_DRM_MIN 0x6400
686 #define LINUX_IOCTL_DRM_MAX 0x64ff
688 static linux_ioctl_function_t drm_linux_ioctl;
689 static struct linux_ioctl_handler drm_handler = {drm_linux_ioctl,
690 LINUX_IOCTL_DRM_MIN, LINUX_IOCTL_DRM_MAX};
692 /* The bits for in/out are switched on Linux */
693 #define LINUX_IOC_IN IOC_OUT
694 #define LINUX_IOC_OUT IOC_IN
697 drm_linux_ioctl(DRM_STRUCTPROC *p, struct linux_ioctl_args* args)
702 args->cmd &= ~(LINUX_IOC_IN | LINUX_IOC_OUT);
703 if (cmd & LINUX_IOC_IN)
705 if (cmd & LINUX_IOC_OUT)
706 args->cmd |= IOC_OUT;
708 error = ioctl(p, (struct ioctl_args *)args);
712 #endif /* DRM_LINUX */
715 drm_core_init(void *arg)
719 idr_init(&drm_minors_idr);
722 linux_ioctl_register_handler(&drm_handler);
723 #endif /* DRM_LINUX */
725 DRM_INFO("Initialized %s %d.%d.%d %s\n",
726 CORE_NAME, CORE_MAJOR, CORE_MINOR, CORE_PATCHLEVEL, CORE_DATE);
731 drm_core_exit(void *arg)
735 linux_ioctl_unregister_handler(&drm_handler);
736 #endif /* DRM_LINUX */
738 drm_global_release();
739 idr_destroy(&drm_minors_idr);
742 SYSINIT(drm_register, SI_SUB_DRIVERS, SI_ORDER_MIDDLE,
743 drm_core_init, NULL);
744 SYSUNINIT(drm_unregister, SI_SUB_DRIVERS, SI_ORDER_MIDDLE,
745 drm_core_exit, NULL);
748 * Check if dmi_system_id structure matches system DMI data
751 dmi_found(const struct dmi_system_id *dsi)
755 char *sys_vendor, *board_vendor, *product_name, *board_name;
757 sys_vendor = kgetenv("smbios.system.maker");
758 board_vendor = kgetenv("smbios.planar.maker");
759 product_name = kgetenv("smbios.system.product");
760 board_name = kgetenv("smbios.planar.product");
762 for (i = 0; i < NELEM(dsi->matches); i++) {
763 slot = dsi->matches[i].slot;
768 if (sys_vendor != NULL &&
769 !strcmp(sys_vendor, dsi->matches[i].substr))
773 case DMI_BOARD_VENDOR:
774 if (board_vendor != NULL &&
775 !strcmp(board_vendor, dsi->matches[i].substr))
779 case DMI_PRODUCT_NAME:
780 if (product_name != NULL &&
781 !strcmp(product_name, dsi->matches[i].substr))
786 if (board_name != NULL &&
787 !strcmp(board_name, dsi->matches[i].substr))
798 if (sys_vendor != NULL)
799 kfreeenv(sys_vendor);
800 if (board_vendor != NULL)
801 kfreeenv(board_vendor);
802 if (product_name != NULL)
803 kfreeenv(product_name);
804 if (board_name != NULL)
805 kfreeenv(board_name);
811 dmi_check_system(const struct dmi_system_id *sysid)
813 const struct dmi_system_id *dsi;
816 for (dsi = sysid; dsi->matches[0].slot != 0 ; dsi++) {
817 if (dmi_found(dsi)) {
819 if (dsi->callback && dsi->callback(dsi))