1 /*- 2 * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas. 3 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. 4 * All Rights Reserved. 5 * 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: 12 * 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 15 * Software. 16 * 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. 24 * 25 * Authors: 26 * Rickard E. (Rik) Faith <faith@valinux.com> 27 * Gareth Hughes <gareth@valinux.com> 28 * 29 */ 30 31 #include <sys/cdefs.h> 32 __FBSDID("$FreeBSD$"); 33 34 /** @file drm_drv.c 35 * The catch-all file for DRM device support, including module setup/teardown, 36 * open/close, and ioctl dispatch. 37 */ 38 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> 47 48 #ifdef DRM_DEBUG_DEFAULT_ON 49 int drm_debug_flag = (DRM_DEBUGBITS_DEBUG | DRM_DEBUGBITS_KMS | 50 DRM_DEBUGBITS_FAILED_IOCTL); 51 #else 52 int drm_debug_flag = 0; 53 #endif 54 int drm_notyet_flag = 0; 55 56 unsigned int drm_vblank_offdelay = 5000; /* Default to 5000 msecs. */ 57 unsigned int drm_timestamp_precision = 20; /* Default to 20 usecs. */ 58 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); 65 66 static int 67 drm_modevent(module_t mod, int type, void *data) 68 { 69 70 switch (type) { 71 case MOD_LOAD: 72 TUNABLE_INT_FETCH("drm.debug", &drm_debug_flag); 73 TUNABLE_INT_FETCH("drm.notyet", &drm_notyet_flag); 74 break; 75 } 76 return (0); 77 } 78 79 static moduledata_t drm_mod = { 80 "drmn", 81 drm_modevent, 82 0 83 }; 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); 90 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), 101 102 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), 106 107 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), 109 110 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), 112 113 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), 115 116 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), 123 124 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), 126 127 DRM_IOCTL_DEF(DRM_IOCTL_LOCK, drm_lock, DRM_AUTH), 128 DRM_IOCTL_DEF(DRM_IOCTL_UNLOCK, drm_unlock, DRM_AUTH), 129 130 DRM_IOCTL_DEF(DRM_IOCTL_FINISH, drm_noop, DRM_AUTH), 131 132 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), 138 139 DRM_IOCTL_DEF(DRM_IOCTL_CONTROL, drm_control, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 140 141 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), 149 150 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), 155 156 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), 159 160 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), 185 }; 186 187 static struct cdevsw drm_cdevsw = { 188 .d_version = D_VERSION, 189 .d_open = drm_open, 190 .d_read = drm_read, 191 .d_ioctl = drm_ioctl, 192 .d_poll = drm_poll, 193 .d_mmap = drm_mmap, 194 .d_mmap_single = drm_mmap_single, 195 .d_name = "drm", 196 .d_flags = D_TRACKCLOSE 197 }; 198 199 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"); 204 205 static struct drm_msi_blacklist_entry drm_msi_blacklist[] = { 206 {0x8086, 0x2772}, /* Intel i945G */ \ 207 {0x8086, 0x27A2}, /* Intel i945GM */ \ 208 {0x8086, 0x27AE}, /* Intel i945GME */ \ 209 {0, 0} 210 }; 211 212 static int drm_msi_is_blacklisted(struct drm_device *dev, unsigned long flags) 213 { 214 int i = 0; 215 216 if (dev->driver->use_msi != NULL) { 217 int use_msi; 218 219 use_msi = dev->driver->use_msi(dev, flags); 220 221 return (!use_msi); 222 } 223 224 /* 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)) { 228 return 1; 229 } 230 } 231 232 return 0; 233 } 234 235 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist) 236 { 237 drm_pci_id_list_t *id_entry; 238 int vendor, device; 239 240 vendor = pci_get_vendor(kdev); 241 device = pci_get_device(kdev); 242 243 if (pci_get_class(kdev) != PCIC_DISPLAY 244 || pci_get_subclass(kdev) != PCIS_DISPLAY_VGA) 245 return ENXIO; 246 247 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); 252 } 253 return 0; 254 } 255 256 return ENXIO; 257 } 258 259 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist) 260 { 261 struct drm_device *dev; 262 drm_pci_id_list_t *id_entry; 263 int error, msicount; 264 265 dev = device_get_softc(kdev); 266 267 dev->device = kdev; 268 269 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); 273 274 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); 278 279 id_entry = drm_find_description(dev->pci_vendor, 280 dev->pci_device, idlist); 281 dev->id_entry = id_entry; 282 283 if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ)) { 284 if (drm_msi && 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); 288 if (msicount > 1) 289 msicount = 1; 290 291 if (pci_alloc_msi(dev->device, &msicount) == 0) { 292 DRM_INFO("MSI enabled %d message(s)\n", 293 msicount); 294 dev->msi_enabled = 1; 295 dev->irqrid = 1; 296 } 297 } 298 299 dev->irqr = bus_alloc_resource_any(dev->device, SYS_RES_IRQ, 300 &dev->irqrid, RF_SHAREABLE); 301 if (!dev->irqr) { 302 return (ENOENT); 303 } 304 305 dev->irq = (int) rman_get_start(dev->irqr); 306 } 307 308 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"); 314 315 error = drm_load(dev); 316 if (error) 317 goto error; 318 319 error = drm_create_cdevs(kdev); 320 if (error) 321 goto error; 322 323 return (error); 324 error: 325 if (dev->irqr) { 326 bus_release_resource(dev->device, SYS_RES_IRQ, 327 dev->irqrid, dev->irqr); 328 } 329 if (dev->msi_enabled) { 330 pci_release_msi(dev->device); 331 } 332 return (error); 333 } 334 335 int 336 drm_create_cdevs(device_t kdev) 337 { 338 struct drm_device *dev; 339 int error, unit; 340 341 unit = device_get_unit(kdev); 342 dev = device_get_softc(kdev); 343 344 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); 347 if (error == 0) 348 dev->devnode->si_drv1 = dev; 349 return (error); 350 } 351 352 int drm_detach(device_t kdev) 353 { 354 struct drm_device *dev; 355 356 dev = device_get_softc(kdev); 357 drm_unload(dev); 358 if (dev->irqr) { 359 bus_release_resource(dev->device, SYS_RES_IRQ, dev->irqrid, 360 dev->irqr); 361 if (dev->msi_enabled) { 362 pci_release_msi(dev->device); 363 DRM_INFO("MSI released\n"); 364 } 365 } 366 return (0); 367 } 368 369 #ifndef DRM_DEV_NAME 370 #define DRM_DEV_NAME "drm" 371 #endif 372 373 devclass_t drm_devclass; 374 375 drm_pci_id_list_t *drm_find_description(int vendor, int device, 376 drm_pci_id_list_t *idlist) 377 { 378 int i = 0; 379 380 for (i = 0; idlist[i].vendor != 0; i++) { 381 if ((idlist[i].vendor == vendor) && 382 ((idlist[i].device == device) || 383 (idlist[i].device == 0))) { 384 return &idlist[i]; 385 } 386 } 387 return NULL; 388 } 389 390 static int drm_firstopen(struct drm_device *dev) 391 { 392 drm_local_map_t *map; 393 int i; 394 395 DRM_LOCK_ASSERT(dev); 396 397 /* prebuild the SAREA */ 398 i = drm_addmap(dev, 0, SAREA_MAX, _DRM_SHM, 399 _DRM_CONTAINS_LOCK, &map); 400 if (i != 0) 401 return i; 402 403 if (dev->driver->firstopen) 404 dev->driver->firstopen(dev); 405 406 dev->buf_use = 0; 407 408 if (drm_core_check_feature(dev, DRIVER_HAVE_DMA)) { 409 i = drm_dma_setup(dev); 410 if (i != 0) 411 return i; 412 } 413 414 for (i = 0; i < DRM_HASH_SIZE; i++) { 415 dev->magiclist[i].head = NULL; 416 dev->magiclist[i].tail = NULL; 417 } 418 419 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; 424 dev->if_version = 0; 425 426 dev->buf_sigio = NULL; 427 428 DRM_DEBUG("\n"); 429 430 return 0; 431 } 432 433 static int drm_lastclose(struct drm_device *dev) 434 { 435 drm_magic_entry_t *pt, *next; 436 drm_local_map_t *map, *mapsave; 437 int i; 438 439 DRM_LOCK_ASSERT(dev); 440 441 DRM_DEBUG("\n"); 442 443 if (dev->driver->lastclose != NULL) 444 dev->driver->lastclose(dev); 445 446 if (!drm_core_check_feature(dev, DRIVER_MODESET) && dev->irq_enabled) 447 drm_irq_uninstall(dev); 448 449 if (dev->unique) { 450 free(dev->unique, DRM_MEM_DRIVER); 451 dev->unique = NULL; 452 dev->unique_len = 0; 453 } 454 /* Clear pid list */ 455 for (i = 0; i < DRM_HASH_SIZE; i++) { 456 for (pt = dev->magiclist[i].head; pt; pt = next) { 457 next = pt->next; 458 free(pt, DRM_MEM_MAGIC); 459 } 460 dev->magiclist[i].head = dev->magiclist[i].tail = NULL; 461 } 462 463 DRM_UNLOCK(dev); 464 drm_drawable_free_all(dev); 465 DRM_LOCK(dev); 466 467 /* Clear AGP information */ 468 if (dev->agp) { 469 drm_agp_mem_t *entry; 470 drm_agp_mem_t *nexte; 471 472 /* Remove AGP resources, but leave dev->agp intact until 473 * drm_unload is called. 474 */ 475 for (entry = dev->agp->memory; entry; entry = nexte) { 476 nexte = entry->next; 477 if (entry->bound) 478 drm_agp_unbind_memory(entry->handle); 479 drm_agp_free_memory(entry->handle); 480 free(entry, DRM_MEM_AGPLISTS); 481 } 482 dev->agp->memory = NULL; 483 484 if (dev->agp->acquired) 485 drm_agp_release(dev); 486 487 dev->agp->acquired = 0; 488 dev->agp->enabled = 0; 489 } 490 if (dev->sg != NULL) { 491 drm_sg_cleanup(dev->sg); 492 dev->sg = NULL; 493 } 494 495 TAILQ_FOREACH_SAFE(map, &dev->maplist, link, mapsave) { 496 if (!(map->flags & _DRM_DRIVER)) 497 drm_rmmap(dev, map); 498 } 499 500 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); 505 } 506 507 return 0; 508 } 509 510 static int drm_load(struct drm_device *dev) 511 { 512 int i, retcode; 513 514 DRM_DEBUG("\n"); 515 516 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"); 520 return EINVAL; 521 } 522 523 524 drm_mem_init(); 525 drm_sysctl_init(dev); 526 TAILQ_INIT(&dev->files); 527 528 dev->counters = 6; 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; 535 536 for (i = 0; i < DRM_ARRAY_SIZE(dev->counts); i++) 537 atomic_set(&dev->counts[i], 0); 538 539 INIT_LIST_HEAD(&dev->vblank_event_list); 540 541 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) && 545 dev->agp == NULL) { 546 DRM_ERROR("Card isn't AGP, or couldn't initialize " 547 "AGP.\n"); 548 retcode = ENOMEM; 549 goto error; 550 } 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) 554 dev->agp->mtrr = 1; 555 } 556 } 557 558 retcode = drm_ctxbitmap_init(dev); 559 if (retcode != 0) { 560 DRM_ERROR("Cannot allocate memory for context bitmap.\n"); 561 goto error; 562 } 563 564 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"); 567 retcode = ENOMEM; 568 goto error; 569 } 570 571 if (dev->driver->driver_features & DRIVER_GEM) { 572 retcode = drm_gem_init(dev); 573 if (retcode != 0) { 574 DRM_ERROR("Cannot initialize graphics execution " 575 "manager (GEM)\n"); 576 goto error1; 577 } 578 } 579 580 if (dev->driver->load != NULL) { 581 DRM_LOCK(dev); 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"); 587 DRM_UNLOCK(dev); 588 if (retcode != 0) 589 goto error1; 590 } 591 592 DRM_INFO("Initialized %s %d.%d.%d %s\n", 593 dev->driver->name, 594 dev->driver->major, 595 dev->driver->minor, 596 dev->driver->patchlevel, 597 dev->driver->date); 598 599 return 0; 600 601 error1: 602 delete_unrhdr(dev->drw_unrhdr); 603 drm_gem_destroy(dev); 604 error: 605 drm_ctxbitmap_cleanup(dev); 606 drm_sysctl_cleanup(dev); 607 DRM_LOCK(dev); 608 drm_lastclose(dev); 609 DRM_UNLOCK(dev); 610 if (dev->devnode != NULL) 611 destroy_dev(dev->devnode); 612 613 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); 619 620 return retcode; 621 } 622 623 static void drm_unload(struct drm_device *dev) 624 { 625 int i; 626 627 DRM_DEBUG("\n"); 628 629 drm_sysctl_cleanup(dev); 630 if (dev->devnode != NULL) 631 destroy_dev(dev->devnode); 632 633 drm_ctxbitmap_cleanup(dev); 634 635 if (dev->driver->driver_features & DRIVER_GEM) 636 drm_gem_destroy(dev); 637 638 if (dev->agp && dev->agp->mtrr) { 639 int __unused retcode; 640 641 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); 644 } 645 646 drm_vblank_cleanup(dev); 647 648 DRM_LOCK(dev); 649 drm_lastclose(dev); 650 DRM_UNLOCK(dev); 651 652 /* 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. 656 */ 657 for (i = 0; i < DRM_MAX_PCI_RESOURCE; i++) { 658 if (dev->pcir[i] == NULL) 659 continue; 660 bus_release_resource(dev->device, SYS_RES_MEMORY, 661 dev->pcirid[i], dev->pcir[i]); 662 dev->pcir[i] = NULL; 663 } 664 665 if (dev->agp) { 666 free(dev->agp, DRM_MEM_AGPLISTS); 667 dev->agp = NULL; 668 } 669 670 if (dev->driver->unload != NULL) { 671 DRM_LOCK(dev); 672 dev->driver->unload(dev); 673 DRM_UNLOCK(dev); 674 } 675 676 delete_unrhdr(dev->drw_unrhdr); 677 delete_unrhdr(dev->map_unrhdr); 678 679 drm_mem_uninit(); 680 681 if (pci_disable_busmaster(dev->device)) 682 DRM_ERROR("Request to disable bus-master failed.\n"); 683 684 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); 690 } 691 692 int drm_version(struct drm_device *dev, void *data, struct drm_file *file_priv) 693 { 694 struct drm_version *version = data; 695 int len; 696 697 #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 ) ) \ 703 return EFAULT; \ 704 } 705 706 version->version_major = dev->driver->major; 707 version->version_minor = dev->driver->minor; 708 version->version_patchlevel = dev->driver->patchlevel; 709 710 DRM_COPY(version->name, dev->driver->name); 711 DRM_COPY(version->date, dev->driver->date); 712 DRM_COPY(version->desc, dev->driver->desc); 713 714 return 0; 715 } 716 717 int 718 drm_open(struct cdev *kdev, int flags, int fmt, DRM_STRUCTPROC *p) 719 { 720 struct drm_device *dev; 721 int retcode; 722 723 dev = kdev->si_drv1; 724 if (dev == NULL) 725 return (ENXIO); 726 727 DRM_DEBUG("open_count = %d\n", dev->open_count); 728 729 retcode = drm_open_helper(kdev, flags, fmt, p, dev); 730 731 if (retcode == 0) { 732 atomic_inc(&dev->counts[_DRM_STAT_OPENS]); 733 DRM_LOCK(dev); 734 mtx_lock(&Giant); 735 device_busy(dev->device); 736 mtx_unlock(&Giant); 737 if (!dev->open_count++) 738 retcode = drm_firstopen(dev); 739 DRM_UNLOCK(dev); 740 } 741 742 return (retcode); 743 } 744 745 void drm_close(void *data) 746 { 747 struct drm_file *file_priv = data; 748 struct drm_device *dev = file_priv->dev; 749 int retcode = 0; 750 751 DRM_DEBUG("open_count = %d\n", dev->open_count); 752 753 DRM_LOCK(dev); 754 755 if (dev->driver->preclose != NULL) 756 dev->driver->preclose(dev, file_priv); 757 758 /* ======================================================== 759 * Begin inline drm_release 760 */ 761 762 DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n", 763 DRM_CURRENTPID, (long)dev->device, dev->open_count); 764 765 if (dev->driver->driver_features & DRIVER_GEM) 766 drm_gem_release(dev, file_priv); 767 768 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", 771 DRM_CURRENTPID, 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); 775 776 drm_lock_free(&dev->lock, 777 _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)); 778 779 /* FIXME: may require heavy-handed reset of 780 hardware at this point, possibly 781 processed via a callback to the X 782 server. */ 783 } else if (dev->driver->reclaim_buffers_locked != NULL && 784 dev->lock.hw_lock != NULL) { 785 /* The lock is required to reclaim buffers */ 786 for (;;) { 787 if (!dev->lock.hw_lock) { 788 /* Device has been unregistered */ 789 retcode = EINTR; 790 break; 791 } 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 */ 797 } 798 /* Contention */ 799 retcode = DRM_LOCK_SLEEP(dev, &dev->lock.lock_queue, 800 PCATCH, "drmlk2", 0); 801 if (retcode) 802 break; 803 } 804 if (retcode == 0) { 805 dev->driver->reclaim_buffers_locked(dev, file_priv); 806 drm_lock_free(&dev->lock, DRM_KERNEL_CONTEXT); 807 } 808 } 809 810 if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) && 811 !dev->driver->reclaim_buffers_locked) 812 drm_reclaim_buffers(dev, file_priv); 813 814 funsetown(&dev->buf_sigio); 815 seldrain(&file_priv->event_poll); 816 817 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); 821 822 /* ======================================================== 823 * End inline drm_release 824 */ 825 826 atomic_inc(&dev->counts[_DRM_STAT_CLOSES]); 827 mtx_lock(&Giant); 828 device_unbusy(dev->device); 829 mtx_unlock(&Giant); 830 if (--dev->open_count == 0) { 831 retcode = drm_lastclose(dev); 832 } 833 834 DRM_UNLOCK(dev); 835 } 836 837 extern drm_ioctl_desc_t drm_compat_ioctls[]; 838 839 /* drm_ioctl is called whenever a process performs an ioctl on /dev/drm. 840 */ 841 int drm_ioctl(struct cdev *kdev, u_long cmd, caddr_t data, int flags, 842 DRM_STRUCTPROC *p) 843 { 844 struct drm_device *dev = drm_get_device_from_kdev(kdev); 845 int retcode = 0; 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; 851 852 retcode = devfs_get_cdevpriv((void **)&file_priv); 853 if (retcode != 0) { 854 DRM_ERROR("can't find authenticator\n"); 855 return EINVAL; 856 } 857 858 atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]); 859 ++file_priv->ioctl_count; 860 861 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); 864 865 switch (cmd) { 866 case FIONBIO: 867 case FIOASYNC: 868 return 0; 869 870 case FIOSETOWN: 871 return fsetown(*(int *)data, &dev->buf_sigio); 872 873 case FIOGETOWN: 874 *(int *) data = fgetown(&dev->buf_sigio); 875 return 0; 876 } 877 878 if (IOCGROUP(cmd) != DRM_IOCTL_BASE) { 879 DRM_DEBUG("Bad ioctl group 0x%x\n", (int)IOCGROUP(cmd)); 880 return EINVAL; 881 } 882 883 #ifdef COMPAT_FREEBSD32 884 /* 885 * Called whenever a 32-bit process running under a 64-bit 886 * kernel performs an ioctl on /dev/drm. 887 */ 888 if (SV_CURPROC_FLAG(SV_ILP32) && drm_compat_ioctls[nr].func != NULL) 889 /* 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 893 * failing. 894 */ 895 ioctl = &drm_compat_ioctls[nr]; 896 else 897 #endif 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); 906 return EINVAL; 907 } 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]; 913 else 914 #endif 915 ioctl = &dev->driver->ioctls[nr]; 916 is_driver_ioctl = 1; 917 } 918 func = ioctl->func; 919 920 if (func == NULL) { 921 DRM_DEBUG("no function\n"); 922 return EINVAL; 923 } 924 925 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)) 928 return EACCES; 929 930 if (is_driver_ioctl) { 931 if ((ioctl->flags & DRM_UNLOCKED) == 0) 932 DRM_LOCK(dev); 933 /* shared code returns -errno */ 934 retcode = -func(dev, data, file_priv); 935 if ((ioctl->flags & DRM_UNLOCKED) == 0) 936 DRM_UNLOCK(dev); 937 } else { 938 retcode = func(dev, data, file_priv); 939 } 940 941 if (retcode != 0) 942 DRM_DEBUG(" returning %d\n", retcode); 943 if (retcode != 0 && 944 (drm_debug_flag & DRM_DEBUGBITS_FAILED_IOCTL) != 0) { 945 printf( 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); 949 } 950 951 return retcode; 952 } 953 954 drm_local_map_t *drm_getsarea(struct drm_device *dev) 955 { 956 drm_local_map_t *map; 957 958 DRM_LOCK_ASSERT(dev); 959 TAILQ_FOREACH(map, &dev->maplist, link) { 960 if (map->type == _DRM_SHM && (map->flags & _DRM_CONTAINS_LOCK)) 961 return map; 962 } 963 964 return NULL; 965 } 966 967 int 968 drm_add_busid_modesetting(struct drm_device *dev, struct sysctl_ctx_list *ctx, 969 struct sysctl_oid *top) 970 { 971 struct sysctl_oid *oid; 972 973 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); 978 if (oid == NULL) 979 return (ENOMEM); 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); 983 if (oid == NULL) 984 return (ENOMEM); 985 986 return (0); 987 } 988 989 static int 990 drm_mmap_single(struct cdev *kdev, vm_ooffset_t *offset, vm_size_t size, 991 struct vm_object **obj_res, int nprot) 992 { 993 struct drm_device *dev; 994 995 dev = drm_get_device_from_kdev(kdev); 996 if (dev->drm_ttm_bdev != NULL) { 997 return (ttm_bo_mmap_single(dev->drm_ttm_bdev, offset, size, 998 obj_res, nprot)); 999 } else if ((dev->driver->driver_features & DRIVER_GEM) != 0) { 1000 return (drm_gem_mmap_single(dev, offset, size, obj_res, nprot)); 1001 } else { 1002 return (ENODEV); 1003 } 1004 } 1005 1006 #if DRM_LINUX 1007 1008 #include <sys/sysproto.h> 1009 1010 MODULE_DEPEND(DRIVER_NAME, linux, 1, 1, 1); 1011 1012 #define LINUX_IOCTL_DRM_MIN 0x6400 1013 #define LINUX_IOCTL_DRM_MAX 0x64ff 1014 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}; 1018 1019 /* The bits for in/out are switched on Linux */ 1020 #define LINUX_IOC_IN IOC_OUT 1021 #define LINUX_IOC_OUT IOC_IN 1022 1023 static int 1024 drm_linux_ioctl(DRM_STRUCTPROC *p, struct linux_ioctl_args* args) 1025 { 1026 int error; 1027 int cmd = args->cmd; 1028 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; 1034 1035 error = ioctl(p, (struct ioctl_args *)args); 1036 1037 return error; 1038 } 1039 #endif /* DRM_LINUX */ 1040 1041 1042 static int 1043 drm_core_init(void *arg) 1044 { 1045 1046 drm_global_init(); 1047 1048 #if DRM_LINUX 1049 linux_ioctl_register_handler(&drm_handler); 1050 #endif /* DRM_LINUX */ 1051 1052 DRM_INFO("Initialized %s %d.%d.%d %s\n", 1053 CORE_NAME, CORE_MAJOR, CORE_MINOR, CORE_PATCHLEVEL, CORE_DATE); 1054 return 0; 1055 } 1056 1057 static void 1058 drm_core_exit(void *arg) 1059 { 1060 1061 #if DRM_LINUX 1062 linux_ioctl_unregister_handler(&drm_handler); 1063 #endif /* DRM_LINUX */ 1064 1065 drm_global_release(); 1066 } 1067 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); 1072 1073 bool 1074 dmi_check_system(const struct dmi_system_id *sysid) 1075 { 1076 1077 /* XXXKIB */ 1078 return (false); 1079 } 1080