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>
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
35 * The catch-all file for DRM device support, including module setup/teardown,
36 * open/close, and ioctl dispatch.
39 #include <sys/limits.h>
40 #include <sys/sysent.h>
41 #include <dev/drm2/drmP.h>
42 #include <dev/drm2/drm.h>
43 #include <dev/drm2/drm_core.h>
44 #include <dev/drm2/drm_global.h>
45 #include <dev/drm2/drm_sarea.h>
46 #include <dev/drm2/drm_mode.h>
48 #ifdef DRM_DEBUG_DEFAULT_ON
49 int drm_debug_flag = (DRM_DEBUGBITS_DEBUG | DRM_DEBUGBITS_KMS |
50 DRM_DEBUGBITS_FAILED_IOCTL);
52 int drm_debug_flag = 0;
54 int drm_notyet_flag = 0;
56 unsigned int drm_vblank_offdelay = 5000; /* Default to 5000 msecs. */
57 unsigned int drm_timestamp_precision = 20; /* Default to 20 usecs. */
59 static int drm_load(struct drm_device *dev);
60 static void drm_unload(struct drm_device *dev);
61 static drm_pci_id_list_t *drm_find_description(int vendor, int device,
62 drm_pci_id_list_t *idlist);
63 static int drm_mmap_single(struct cdev *kdev, vm_ooffset_t *offset,
64 vm_size_t size, struct vm_object **obj_res, int nprot);
67 drm_modevent(module_t mod, int type, void *data)
72 TUNABLE_INT_FETCH("drm.debug", &drm_debug_flag);
73 TUNABLE_INT_FETCH("drm.notyet", &drm_notyet_flag);
79 static moduledata_t drm_mod = {
84 DECLARE_MODULE(drmn, drm_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
85 MODULE_VERSION(drmn, 1);
86 MODULE_DEPEND(drmn, agp, 1, 1, 1);
87 MODULE_DEPEND(drmn, pci, 1, 1, 1);
88 MODULE_DEPEND(drmn, mem, 1, 1, 1);
89 MODULE_DEPEND(drmn, iicbus, 1, 1, 1);
91 static drm_ioctl_desc_t drm_ioctls[256] = {
92 DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version, 0),
93 DRM_IOCTL_DEF(DRM_IOCTL_GET_UNIQUE, drm_getunique, 0),
94 DRM_IOCTL_DEF(DRM_IOCTL_GET_MAGIC, drm_getmagic, 0),
95 DRM_IOCTL_DEF(DRM_IOCTL_IRQ_BUSID, drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY),
96 DRM_IOCTL_DEF(DRM_IOCTL_GET_MAP, drm_getmap, 0),
97 DRM_IOCTL_DEF(DRM_IOCTL_GET_CLIENT, drm_getclient, 0),
98 DRM_IOCTL_DEF(DRM_IOCTL_GET_STATS, drm_getstats, 0),
99 DRM_IOCTL_DEF(DRM_IOCTL_GET_CAP, drm_getcap, DRM_UNLOCKED),
100 DRM_IOCTL_DEF(DRM_IOCTL_SET_VERSION, drm_setversion, DRM_MASTER|DRM_ROOT_ONLY),
102 DRM_IOCTL_DEF(DRM_IOCTL_SET_UNIQUE, drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
103 DRM_IOCTL_DEF(DRM_IOCTL_BLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
104 DRM_IOCTL_DEF(DRM_IOCTL_UNBLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
105 DRM_IOCTL_DEF(DRM_IOCTL_AUTH_MAGIC, drm_authmagic, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
107 DRM_IOCTL_DEF(DRM_IOCTL_ADD_MAP, drm_addmap_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
108 DRM_IOCTL_DEF(DRM_IOCTL_RM_MAP, drm_rmmap_ioctl, DRM_AUTH),
110 DRM_IOCTL_DEF(DRM_IOCTL_SET_SAREA_CTX, drm_setsareactx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
111 DRM_IOCTL_DEF(DRM_IOCTL_GET_SAREA_CTX, drm_getsareactx, DRM_AUTH),
113 DRM_IOCTL_DEF(DRM_IOCTL_SET_MASTER, drm_setmaster_ioctl, DRM_ROOT_ONLY),
114 DRM_IOCTL_DEF(DRM_IOCTL_DROP_MASTER, drm_dropmaster_ioctl, DRM_ROOT_ONLY),
116 DRM_IOCTL_DEF(DRM_IOCTL_ADD_CTX, drm_addctx, DRM_AUTH|DRM_ROOT_ONLY),
117 DRM_IOCTL_DEF(DRM_IOCTL_RM_CTX, drm_rmctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
118 DRM_IOCTL_DEF(DRM_IOCTL_MOD_CTX, drm_modctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
119 DRM_IOCTL_DEF(DRM_IOCTL_GET_CTX, drm_getctx, DRM_AUTH),
120 DRM_IOCTL_DEF(DRM_IOCTL_SWITCH_CTX, drm_switchctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
121 DRM_IOCTL_DEF(DRM_IOCTL_NEW_CTX, drm_newctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
122 DRM_IOCTL_DEF(DRM_IOCTL_RES_CTX, drm_resctx, DRM_AUTH),
124 DRM_IOCTL_DEF(DRM_IOCTL_ADD_DRAW, drm_adddraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
125 DRM_IOCTL_DEF(DRM_IOCTL_RM_DRAW, drm_rmdraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
127 DRM_IOCTL_DEF(DRM_IOCTL_LOCK, drm_lock, DRM_AUTH),
128 DRM_IOCTL_DEF(DRM_IOCTL_UNLOCK, drm_unlock, DRM_AUTH),
130 DRM_IOCTL_DEF(DRM_IOCTL_FINISH, drm_noop, DRM_AUTH),
132 DRM_IOCTL_DEF(DRM_IOCTL_ADD_BUFS, drm_addbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
133 DRM_IOCTL_DEF(DRM_IOCTL_MARK_BUFS, drm_markbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
134 DRM_IOCTL_DEF(DRM_IOCTL_INFO_BUFS, drm_infobufs, DRM_AUTH),
135 DRM_IOCTL_DEF(DRM_IOCTL_MAP_BUFS, drm_mapbufs, DRM_AUTH),
136 DRM_IOCTL_DEF(DRM_IOCTL_FREE_BUFS, drm_freebufs, DRM_AUTH),
137 DRM_IOCTL_DEF(DRM_IOCTL_DMA, drm_dma, DRM_AUTH),
139 DRM_IOCTL_DEF(DRM_IOCTL_CONTROL, drm_control, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
141 DRM_IOCTL_DEF(DRM_IOCTL_AGP_ACQUIRE, drm_agp_acquire_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
142 DRM_IOCTL_DEF(DRM_IOCTL_AGP_RELEASE, drm_agp_release_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
143 DRM_IOCTL_DEF(DRM_IOCTL_AGP_ENABLE, drm_agp_enable_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
144 DRM_IOCTL_DEF(DRM_IOCTL_AGP_INFO, drm_agp_info_ioctl, DRM_AUTH),
145 DRM_IOCTL_DEF(DRM_IOCTL_AGP_ALLOC, drm_agp_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
146 DRM_IOCTL_DEF(DRM_IOCTL_AGP_FREE, drm_agp_free_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
147 DRM_IOCTL_DEF(DRM_IOCTL_AGP_BIND, drm_agp_bind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
148 DRM_IOCTL_DEF(DRM_IOCTL_AGP_UNBIND, drm_agp_unbind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
150 DRM_IOCTL_DEF(DRM_IOCTL_SG_ALLOC, drm_sg_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
151 DRM_IOCTL_DEF(DRM_IOCTL_SG_FREE, drm_sg_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
152 DRM_IOCTL_DEF(DRM_IOCTL_WAIT_VBLANK, drm_wait_vblank, DRM_UNLOCKED),
153 DRM_IOCTL_DEF(DRM_IOCTL_MODESET_CTL, drm_modeset_ctl, 0),
154 DRM_IOCTL_DEF(DRM_IOCTL_UPDATE_DRAW, drm_update_draw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
156 DRM_IOCTL_DEF(DRM_IOCTL_GEM_CLOSE, drm_gem_close_ioctl, DRM_UNLOCKED),
157 DRM_IOCTL_DEF(DRM_IOCTL_GEM_FLINK, drm_gem_flink_ioctl, DRM_AUTH|DRM_UNLOCKED),
158 DRM_IOCTL_DEF(DRM_IOCTL_GEM_OPEN, drm_gem_open_ioctl, DRM_AUTH|DRM_UNLOCKED),
160 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETRESOURCES, drm_mode_getresources, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
161 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPLANERESOURCES, drm_mode_getplane_res, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
162 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCRTC, drm_mode_getcrtc, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
163 DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETCRTC, drm_mode_setcrtc, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
164 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPLANE, drm_mode_getplane, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
165 DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETPLANE, drm_mode_setplane, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
166 DRM_IOCTL_DEF(DRM_IOCTL_MODE_CURSOR, drm_mode_cursor_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
167 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETGAMMA, drm_mode_gamma_get_ioctl, DRM_MASTER|DRM_UNLOCKED),
168 DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETGAMMA, drm_mode_gamma_set_ioctl, DRM_MASTER|DRM_UNLOCKED),
169 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETENCODER, drm_mode_getencoder, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
170 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCONNECTOR, drm_mode_getconnector, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
171 DRM_IOCTL_DEF(DRM_IOCTL_MODE_ATTACHMODE, drm_mode_attachmode_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
172 DRM_IOCTL_DEF(DRM_IOCTL_MODE_DETACHMODE, drm_mode_detachmode_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
173 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPERTY, drm_mode_getproperty_ioctl, DRM_MASTER | DRM_CONTROL_ALLOW|DRM_UNLOCKED),
174 DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETPROPERTY, drm_mode_connector_property_set_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
175 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPBLOB, drm_mode_getblob_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
176 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETFB, drm_mode_getfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
177 DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB, drm_mode_addfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
178 DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB2, drm_mode_addfb2, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
179 DRM_IOCTL_DEF(DRM_IOCTL_MODE_RMFB, drm_mode_rmfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
180 DRM_IOCTL_DEF(DRM_IOCTL_MODE_PAGE_FLIP, drm_mode_page_flip_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
181 DRM_IOCTL_DEF(DRM_IOCTL_MODE_DIRTYFB, drm_mode_dirtyfb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
182 DRM_IOCTL_DEF(DRM_IOCTL_MODE_CREATE_DUMB, drm_mode_create_dumb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
183 DRM_IOCTL_DEF(DRM_IOCTL_MODE_MAP_DUMB, drm_mode_mmap_dumb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
184 DRM_IOCTL_DEF(DRM_IOCTL_MODE_DESTROY_DUMB, drm_mode_destroy_dumb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
187 static struct cdevsw drm_cdevsw = {
188 .d_version = D_VERSION,
191 .d_ioctl = drm_ioctl,
194 .d_mmap_single = drm_mmap_single,
196 .d_flags = D_TRACKCLOSE
199 static int drm_msi = 1; /* Enable by default. */
200 TUNABLE_INT("hw.drm.msi", &drm_msi);
201 SYSCTL_NODE(_hw, OID_AUTO, drm, CTLFLAG_RW, NULL, "DRM device");
202 SYSCTL_INT(_hw_drm, OID_AUTO, msi, CTLFLAG_RDTUN, &drm_msi, 1,
203 "Enable MSI interrupts for drm devices");
205 static struct drm_msi_blacklist_entry drm_msi_blacklist[] = {
206 {0x8086, 0x2772}, /* Intel i945G */ \
207 {0x8086, 0x27A2}, /* Intel i945GM */ \
208 {0x8086, 0x27AE}, /* Intel i945GME */ \
212 static int drm_msi_is_blacklisted(struct drm_device *dev, unsigned long flags)
216 if (dev->driver->use_msi != NULL) {
219 use_msi = dev->driver->use_msi(dev, flags);
224 /* TODO: Maybe move this to a callback in i915? */
225 for (i = 0; drm_msi_blacklist[i].vendor != 0; i++) {
226 if ((drm_msi_blacklist[i].vendor == dev->pci_vendor) &&
227 (drm_msi_blacklist[i].device == dev->pci_device)) {
235 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist)
237 drm_pci_id_list_t *id_entry;
240 vendor = pci_get_vendor(kdev);
241 device = pci_get_device(kdev);
243 if (pci_get_class(kdev) != PCIC_DISPLAY
244 || pci_get_subclass(kdev) != PCIS_DISPLAY_VGA)
247 id_entry = drm_find_description(vendor, device, idlist);
248 if (id_entry != NULL) {
249 if (!device_get_desc(kdev)) {
250 DRM_DEBUG("desc : %s\n", device_get_desc(kdev));
251 device_set_desc(kdev, id_entry->name);
259 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist)
261 struct drm_device *dev;
262 drm_pci_id_list_t *id_entry;
265 dev = device_get_softc(kdev);
269 dev->pci_domain = pci_get_domain(dev->device);
270 dev->pci_bus = pci_get_bus(dev->device);
271 dev->pci_slot = pci_get_slot(dev->device);
272 dev->pci_func = pci_get_function(dev->device);
274 dev->pci_vendor = pci_get_vendor(dev->device);
275 dev->pci_device = pci_get_device(dev->device);
276 dev->pci_subvendor = pci_get_subvendor(dev->device);
277 dev->pci_subdevice = pci_get_subdevice(dev->device);
279 id_entry = drm_find_description(dev->pci_vendor,
280 dev->pci_device, idlist);
281 dev->id_entry = id_entry;
283 if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ)) {
285 !drm_msi_is_blacklisted(dev, dev->id_entry->driver_private)) {
286 msicount = pci_msi_count(dev->device);
287 DRM_DEBUG("MSI count = %d\n", msicount);
291 if (pci_alloc_msi(dev->device, &msicount) == 0) {
292 DRM_INFO("MSI enabled %d message(s)\n",
294 dev->msi_enabled = 1;
299 dev->irqr = bus_alloc_resource_any(dev->device, SYS_RES_IRQ,
300 &dev->irqrid, RF_SHAREABLE);
305 dev->irq = (int) rman_get_start(dev->irqr);
308 mtx_init(&dev->dev_lock, "drmdev", NULL, MTX_DEF);
309 mtx_init(&dev->irq_lock, "drmirq", NULL, MTX_DEF);
310 mtx_init(&dev->vbl_lock, "drmvbl", NULL, MTX_DEF);
311 mtx_init(&dev->drw_lock, "drmdrw", NULL, MTX_DEF);
312 mtx_init(&dev->event_lock, "drmev", NULL, MTX_DEF);
313 sx_init(&dev->dev_struct_lock, "drmslk");
315 error = drm_load(dev);
319 error = drm_create_cdevs(kdev);
326 bus_release_resource(dev->device, SYS_RES_IRQ,
327 dev->irqrid, dev->irqr);
329 if (dev->msi_enabled) {
330 pci_release_msi(dev->device);
336 drm_create_cdevs(device_t kdev)
338 struct drm_device *dev;
341 unit = device_get_unit(kdev);
342 dev = device_get_softc(kdev);
344 error = make_dev_p(MAKEDEV_WAITOK | MAKEDEV_CHECKNAME, &dev->devnode,
345 &drm_cdevsw, 0, DRM_DEV_UID, DRM_DEV_GID,
346 DRM_DEV_MODE, "dri/card%d", unit);
348 dev->devnode->si_drv1 = dev;
352 int drm_detach(device_t kdev)
354 struct drm_device *dev;
356 dev = device_get_softc(kdev);
359 bus_release_resource(dev->device, SYS_RES_IRQ, dev->irqrid,
361 if (dev->msi_enabled) {
362 pci_release_msi(dev->device);
363 DRM_INFO("MSI released\n");
370 #define DRM_DEV_NAME "drm"
373 devclass_t drm_devclass;
375 drm_pci_id_list_t *drm_find_description(int vendor, int device,
376 drm_pci_id_list_t *idlist)
380 for (i = 0; idlist[i].vendor != 0; i++) {
381 if ((idlist[i].vendor == vendor) &&
382 ((idlist[i].device == device) ||
383 (idlist[i].device == 0))) {
390 static int drm_firstopen(struct drm_device *dev)
392 drm_local_map_t *map;
395 DRM_LOCK_ASSERT(dev);
397 /* prebuild the SAREA */
398 i = drm_addmap(dev, 0, SAREA_MAX, _DRM_SHM,
399 _DRM_CONTAINS_LOCK, &map);
403 if (dev->driver->firstopen)
404 dev->driver->firstopen(dev);
408 if (drm_core_check_feature(dev, DRIVER_HAVE_DMA)) {
409 i = drm_dma_setup(dev);
414 for (i = 0; i < DRM_HASH_SIZE; i++) {
415 dev->magiclist[i].head = NULL;
416 dev->magiclist[i].tail = NULL;
419 dev->lock.lock_queue = 0;
420 if (!drm_core_check_feature(dev, DRIVER_MODESET))
421 dev->irq_enabled = 0;
422 dev->context_flag = 0;
423 dev->last_context = 0;
426 dev->buf_sigio = NULL;
433 static int drm_lastclose(struct drm_device *dev)
435 drm_magic_entry_t *pt, *next;
436 drm_local_map_t *map, *mapsave;
439 DRM_LOCK_ASSERT(dev);
443 if (dev->driver->lastclose != NULL)
444 dev->driver->lastclose(dev);
446 if (!drm_core_check_feature(dev, DRIVER_MODESET) && dev->irq_enabled)
447 drm_irq_uninstall(dev);
450 free(dev->unique, DRM_MEM_DRIVER);
455 for (i = 0; i < DRM_HASH_SIZE; i++) {
456 for (pt = dev->magiclist[i].head; pt; pt = next) {
458 free(pt, DRM_MEM_MAGIC);
460 dev->magiclist[i].head = dev->magiclist[i].tail = NULL;
464 drm_drawable_free_all(dev);
467 /* Clear AGP information */
469 drm_agp_mem_t *entry;
470 drm_agp_mem_t *nexte;
472 /* Remove AGP resources, but leave dev->agp intact until
473 * drm_unload is called.
475 for (entry = dev->agp->memory; entry; entry = nexte) {
478 drm_agp_unbind_memory(entry->handle);
479 drm_agp_free_memory(entry->handle);
480 free(entry, DRM_MEM_AGPLISTS);
482 dev->agp->memory = NULL;
484 if (dev->agp->acquired)
485 drm_agp_release(dev);
487 dev->agp->acquired = 0;
488 dev->agp->enabled = 0;
490 if (dev->sg != NULL) {
491 drm_sg_cleanup(dev->sg);
495 TAILQ_FOREACH_SAFE(map, &dev->maplist, link, mapsave) {
496 if (!(map->flags & _DRM_DRIVER))
500 drm_dma_takedown(dev);
501 if (dev->lock.hw_lock) {
502 dev->lock.hw_lock = NULL; /* SHM removed */
503 dev->lock.file_priv = NULL;
504 DRM_WAKEUP_INT((void *)&dev->lock.lock_queue);
510 static int drm_load(struct drm_device *dev)
516 TAILQ_INIT(&dev->maplist);
517 dev->map_unrhdr = new_unrhdr(1, ((1 << DRM_MAP_HANDLE_BITS) - 1), NULL);
518 if (dev->map_unrhdr == NULL) {
519 DRM_ERROR("Couldn't allocate map number allocator\n");
525 drm_sysctl_init(dev);
526 TAILQ_INIT(&dev->files);
529 dev->types[0] = _DRM_STAT_LOCK;
530 dev->types[1] = _DRM_STAT_OPENS;
531 dev->types[2] = _DRM_STAT_CLOSES;
532 dev->types[3] = _DRM_STAT_IOCTLS;
533 dev->types[4] = _DRM_STAT_LOCKS;
534 dev->types[5] = _DRM_STAT_UNLOCKS;
536 for (i = 0; i < DRM_ARRAY_SIZE(dev->counts); i++)
537 atomic_set(&dev->counts[i], 0);
539 INIT_LIST_HEAD(&dev->vblank_event_list);
541 if (drm_core_has_AGP(dev)) {
542 if (drm_device_is_agp(dev))
543 dev->agp = drm_agp_init();
544 if (drm_core_check_feature(dev, DRIVER_REQUIRE_AGP) &&
546 DRM_ERROR("Card isn't AGP, or couldn't initialize "
551 if (dev->agp != NULL && dev->agp->info.ai_aperture_base != 0) {
552 if (drm_mtrr_add(dev->agp->info.ai_aperture_base,
553 dev->agp->info.ai_aperture_size, DRM_MTRR_WC) == 0)
558 retcode = drm_ctxbitmap_init(dev);
560 DRM_ERROR("Cannot allocate memory for context bitmap.\n");
564 dev->drw_unrhdr = new_unrhdr(1, INT_MAX, NULL);
565 if (dev->drw_unrhdr == NULL) {
566 DRM_ERROR("Couldn't allocate drawable number allocator\n");
571 if (dev->driver->driver_features & DRIVER_GEM) {
572 retcode = drm_gem_init(dev);
574 DRM_ERROR("Cannot initialize graphics execution "
580 if (dev->driver->load != NULL) {
582 /* Shared code returns -errno. */
583 retcode = -dev->driver->load(dev,
584 dev->id_entry->driver_private);
585 if (pci_enable_busmaster(dev->device))
586 DRM_ERROR("Request to enable bus-master failed.\n");
592 DRM_INFO("Initialized %s %d.%d.%d %s\n",
596 dev->driver->patchlevel,
602 delete_unrhdr(dev->drw_unrhdr);
603 drm_gem_destroy(dev);
605 drm_ctxbitmap_cleanup(dev);
606 drm_sysctl_cleanup(dev);
610 if (dev->devnode != NULL)
611 destroy_dev(dev->devnode);
613 mtx_destroy(&dev->drw_lock);
614 mtx_destroy(&dev->vbl_lock);
615 mtx_destroy(&dev->irq_lock);
616 mtx_destroy(&dev->dev_lock);
617 mtx_destroy(&dev->event_lock);
618 sx_destroy(&dev->dev_struct_lock);
623 static void drm_unload(struct drm_device *dev)
629 drm_sysctl_cleanup(dev);
630 if (dev->devnode != NULL)
631 destroy_dev(dev->devnode);
633 drm_ctxbitmap_cleanup(dev);
635 if (dev->driver->driver_features & DRIVER_GEM)
636 drm_gem_destroy(dev);
638 if (dev->agp && dev->agp->mtrr) {
639 int __unused retcode;
641 retcode = drm_mtrr_del(0, dev->agp->info.ai_aperture_base,
642 dev->agp->info.ai_aperture_size, DRM_MTRR_WC);
643 DRM_DEBUG("mtrr_del = %d", retcode);
646 drm_vblank_cleanup(dev);
652 /* Clean up PCI resources allocated by drm_bufs.c. We're not really
653 * worried about resource consumption while the DRM is inactive (between
654 * lastclose and firstopen or unload) because these aren't actually
655 * taking up KVA, just keeping the PCI resource allocated.
657 for (i = 0; i < DRM_MAX_PCI_RESOURCE; i++) {
658 if (dev->pcir[i] == NULL)
660 bus_release_resource(dev->device, SYS_RES_MEMORY,
661 dev->pcirid[i], dev->pcir[i]);
666 free(dev->agp, DRM_MEM_AGPLISTS);
670 if (dev->driver->unload != NULL) {
672 dev->driver->unload(dev);
676 delete_unrhdr(dev->drw_unrhdr);
677 delete_unrhdr(dev->map_unrhdr);
681 if (pci_disable_busmaster(dev->device))
682 DRM_ERROR("Request to disable bus-master failed.\n");
684 mtx_destroy(&dev->drw_lock);
685 mtx_destroy(&dev->vbl_lock);
686 mtx_destroy(&dev->irq_lock);
687 mtx_destroy(&dev->dev_lock);
688 mtx_destroy(&dev->event_lock);
689 sx_destroy(&dev->dev_struct_lock);
692 int drm_version(struct drm_device *dev, void *data, struct drm_file *file_priv)
694 struct drm_version *version = data;
697 #define DRM_COPY( name, value ) \
698 len = strlen( value ); \
699 if ( len > name##_len ) len = name##_len; \
700 name##_len = strlen( value ); \
701 if ( len && name ) { \
702 if ( DRM_COPY_TO_USER( name, value, len ) ) \
706 version->version_major = dev->driver->major;
707 version->version_minor = dev->driver->minor;
708 version->version_patchlevel = dev->driver->patchlevel;
710 DRM_COPY(version->name, dev->driver->name);
711 DRM_COPY(version->date, dev->driver->date);
712 DRM_COPY(version->desc, dev->driver->desc);
718 drm_open(struct cdev *kdev, int flags, int fmt, DRM_STRUCTPROC *p)
720 struct drm_device *dev;
727 DRM_DEBUG("open_count = %d\n", dev->open_count);
729 retcode = drm_open_helper(kdev, flags, fmt, p, dev);
732 atomic_inc(&dev->counts[_DRM_STAT_OPENS]);
735 device_busy(dev->device);
737 if (!dev->open_count++)
738 retcode = drm_firstopen(dev);
745 void drm_close(void *data)
747 struct drm_file *file_priv = data;
748 struct drm_device *dev = file_priv->dev;
751 DRM_DEBUG("open_count = %d\n", dev->open_count);
755 if (dev->driver->preclose != NULL)
756 dev->driver->preclose(dev, file_priv);
758 /* ========================================================
759 * Begin inline drm_release
762 DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n",
763 DRM_CURRENTPID, (long)dev->device, dev->open_count);
765 if (dev->driver->driver_features & DRIVER_GEM)
766 drm_gem_release(dev, file_priv);
768 if (dev->lock.hw_lock && _DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)
769 && dev->lock.file_priv == file_priv) {
770 DRM_DEBUG("Process %d dead, freeing lock for context %d\n",
772 _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
773 if (dev->driver->reclaim_buffers_locked != NULL)
774 dev->driver->reclaim_buffers_locked(dev, file_priv);
776 drm_lock_free(&dev->lock,
777 _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
779 /* FIXME: may require heavy-handed reset of
780 hardware at this point, possibly
781 processed via a callback to the X
783 } else if (dev->driver->reclaim_buffers_locked != NULL &&
784 dev->lock.hw_lock != NULL) {
785 /* The lock is required to reclaim buffers */
787 if (!dev->lock.hw_lock) {
788 /* Device has been unregistered */
792 if (drm_lock_take(&dev->lock, DRM_KERNEL_CONTEXT)) {
793 dev->lock.file_priv = file_priv;
794 dev->lock.lock_time = jiffies;
795 atomic_inc(&dev->counts[_DRM_STAT_LOCKS]);
796 break; /* Got lock */
799 retcode = DRM_LOCK_SLEEP(dev, &dev->lock.lock_queue,
800 PCATCH, "drmlk2", 0);
805 dev->driver->reclaim_buffers_locked(dev, file_priv);
806 drm_lock_free(&dev->lock, DRM_KERNEL_CONTEXT);
810 if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) &&
811 !dev->driver->reclaim_buffers_locked)
812 drm_reclaim_buffers(dev, file_priv);
814 funsetown(&dev->buf_sigio);
815 seldrain(&file_priv->event_poll);
817 if (dev->driver->postclose != NULL)
818 dev->driver->postclose(dev, file_priv);
819 TAILQ_REMOVE(&dev->files, file_priv, link);
820 free(file_priv, DRM_MEM_FILES);
822 /* ========================================================
823 * End inline drm_release
826 atomic_inc(&dev->counts[_DRM_STAT_CLOSES]);
828 device_unbusy(dev->device);
830 if (--dev->open_count == 0) {
831 retcode = drm_lastclose(dev);
837 extern drm_ioctl_desc_t drm_compat_ioctls[];
839 /* drm_ioctl is called whenever a process performs an ioctl on /dev/drm.
841 int drm_ioctl(struct cdev *kdev, u_long cmd, caddr_t data, int flags,
844 struct drm_device *dev = drm_get_device_from_kdev(kdev);
846 drm_ioctl_desc_t *ioctl;
847 int (*func)(struct drm_device *dev, void *data, struct drm_file *file_priv);
848 int nr = DRM_IOCTL_NR(cmd);
849 int is_driver_ioctl = 0;
850 struct drm_file *file_priv;
852 retcode = devfs_get_cdevpriv((void **)&file_priv);
854 DRM_ERROR("can't find authenticator\n");
858 atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]);
859 ++file_priv->ioctl_count;
861 DRM_DEBUG("pid=%d, cmd=0x%02lx, nr=0x%02x, dev 0x%lx, auth=%d\n",
862 DRM_CURRENTPID, cmd, nr, (long)dev->device,
863 file_priv->authenticated);
871 return fsetown(*(int *)data, &dev->buf_sigio);
874 *(int *) data = fgetown(&dev->buf_sigio);
878 if (IOCGROUP(cmd) != DRM_IOCTL_BASE) {
879 DRM_DEBUG("Bad ioctl group 0x%x\n", (int)IOCGROUP(cmd));
883 #ifdef COMPAT_FREEBSD32
885 * Called whenever a 32-bit process running under a 64-bit
886 * kernel performs an ioctl on /dev/drm.
888 if (SV_CURPROC_FLAG(SV_ILP32) && drm_compat_ioctls[nr].func != NULL)
890 * Assume that ioctls without an explicit compat
891 * routine will just work. This may not always be a
892 * good assumption, but it's better than always
895 ioctl = &drm_compat_ioctls[nr];
898 ioctl = &drm_ioctls[nr];
899 /* It's not a core DRM ioctl, try driver-specific. */
900 if (ioctl->func == NULL && nr >= DRM_COMMAND_BASE) {
901 /* The array entries begin at DRM_COMMAND_BASE ioctl nr */
902 nr -= DRM_COMMAND_BASE;
903 if (nr > dev->driver->max_ioctl) {
904 DRM_DEBUG("Bad driver ioctl number, 0x%x (of 0x%x)\n",
905 nr, dev->driver->max_ioctl);
908 #ifdef COMPAT_FREEBSD32
909 if (SV_CURPROC_FLAG(SV_ILP32) &&
910 nr < *dev->driver->compat_ioctls_nr &&
911 dev->driver->compat_ioctls[nr].func != NULL)
912 ioctl = &dev->driver->compat_ioctls[nr];
915 ioctl = &dev->driver->ioctls[nr];
921 DRM_DEBUG("no function\n");
925 if (((ioctl->flags & DRM_ROOT_ONLY) && !DRM_SUSER(p)) ||
926 ((ioctl->flags & DRM_AUTH) && !file_priv->authenticated) ||
927 ((ioctl->flags & DRM_MASTER) && !file_priv->master))
930 if (is_driver_ioctl) {
931 if ((ioctl->flags & DRM_UNLOCKED) == 0)
933 /* shared code returns -errno */
934 retcode = -func(dev, data, file_priv);
935 if ((ioctl->flags & DRM_UNLOCKED) == 0)
938 retcode = func(dev, data, file_priv);
942 DRM_DEBUG(" returning %d\n", retcode);
944 (drm_debug_flag & DRM_DEBUGBITS_FAILED_IOCTL) != 0) {
946 "pid %d, cmd 0x%02lx, nr 0x%02x/%1d, dev 0x%lx, auth %d, res %d\n",
947 DRM_CURRENTPID, cmd, nr, is_driver_ioctl, (long)dev->device,
948 file_priv->authenticated, retcode);
954 drm_local_map_t *drm_getsarea(struct drm_device *dev)
956 drm_local_map_t *map;
958 DRM_LOCK_ASSERT(dev);
959 TAILQ_FOREACH(map, &dev->maplist, link) {
960 if (map->type == _DRM_SHM && (map->flags & _DRM_CONTAINS_LOCK))
968 drm_add_busid_modesetting(struct drm_device *dev, struct sysctl_ctx_list *ctx,
969 struct sysctl_oid *top)
971 struct sysctl_oid *oid;
973 snprintf(dev->busid_str, sizeof(dev->busid_str),
974 "pci:%04x:%02x:%02x.%d", dev->pci_domain, dev->pci_bus,
975 dev->pci_slot, dev->pci_func);
976 oid = SYSCTL_ADD_STRING(ctx, SYSCTL_CHILDREN(top), OID_AUTO, "busid",
977 CTLFLAG_RD, dev->busid_str, 0, NULL);
980 dev->modesetting = (dev->driver->driver_features & DRIVER_MODESET) != 0;
981 oid = SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(top), OID_AUTO,
982 "modesetting", CTLFLAG_RD, &dev->modesetting, 0, NULL);
990 drm_mmap_single(struct cdev *kdev, vm_ooffset_t *offset, vm_size_t size,
991 struct vm_object **obj_res, int nprot)
993 struct drm_device *dev;
995 dev = drm_get_device_from_kdev(kdev);
996 if ((dev->driver->driver_features & DRIVER_GEM) != 0) {
997 return (drm_gem_mmap_single(dev, offset, size, obj_res, nprot));
998 } else if (dev->drm_ttm_bo != NULL) {
999 return (ttm_bo_mmap_single(dev->drm_ttm_bo, offset, size,
1008 #include <sys/sysproto.h>
1010 MODULE_DEPEND(DRIVER_NAME, linux, 1, 1, 1);
1012 #define LINUX_IOCTL_DRM_MIN 0x6400
1013 #define LINUX_IOCTL_DRM_MAX 0x64ff
1015 static linux_ioctl_function_t drm_linux_ioctl;
1016 static struct linux_ioctl_handler drm_handler = {drm_linux_ioctl,
1017 LINUX_IOCTL_DRM_MIN, LINUX_IOCTL_DRM_MAX};
1019 /* The bits for in/out are switched on Linux */
1020 #define LINUX_IOC_IN IOC_OUT
1021 #define LINUX_IOC_OUT IOC_IN
1024 drm_linux_ioctl(DRM_STRUCTPROC *p, struct linux_ioctl_args* args)
1027 int cmd = args->cmd;
1029 args->cmd &= ~(LINUX_IOC_IN | LINUX_IOC_OUT);
1030 if (cmd & LINUX_IOC_IN)
1031 args->cmd |= IOC_IN;
1032 if (cmd & LINUX_IOC_OUT)
1033 args->cmd |= IOC_OUT;
1035 error = ioctl(p, (struct ioctl_args *)args);
1039 #endif /* DRM_LINUX */
1043 drm_core_init(void *arg)
1049 linux_ioctl_register_handler(&drm_handler);
1050 #endif /* DRM_LINUX */
1052 DRM_INFO("Initialized %s %d.%d.%d %s\n",
1053 CORE_NAME, CORE_MAJOR, CORE_MINOR, CORE_PATCHLEVEL, CORE_DATE);
1058 drm_core_exit(void *arg)
1062 linux_ioctl_unregister_handler(&drm_handler);
1063 #endif /* DRM_LINUX */
1065 drm_global_release();
1068 SYSINIT(drm_register, SI_SUB_KLD, SI_ORDER_MIDDLE,
1069 drm_core_init, NULL);
1070 SYSUNINIT(drm_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE,
1071 drm_core_exit, NULL);
1074 dmi_check_system(const struct dmi_system_id *sysid)