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 49int drm_debug_flag = (DRM_DEBUGBITS_DEBUG | DRM_DEBUGBITS_KMS | 50 DRM_DEBUGBITS_FAILED_IOCTL); 51#else 52int drm_debug_flag = 0; 53#endif 54int drm_notyet_flag = 0; 55 56unsigned int drm_vblank_offdelay = 5000; /* Default to 5000 msecs. */ 57unsigned int drm_timestamp_precision = 20; /* Default to 20 usecs. */ 58 59/* 60 * Default to use monotonic timestamps for wait-for-vblank and page-flip 61 * complete events. 62 */ 63unsigned int drm_timestamp_monotonic = 1; 64 65static int drm_load(struct drm_device *dev); 66static void drm_unload(struct drm_device *dev); 67static drm_pci_id_list_t *drm_find_description(int vendor, int device, 68 drm_pci_id_list_t *idlist); 69static int drm_mmap_single(struct cdev *kdev, vm_ooffset_t *offset, 70 vm_size_t size, struct vm_object **obj_res, int nprot); 71 72static int 73drm_modevent(module_t mod, int type, void *data) 74{ 75 76 switch (type) { 77 case MOD_LOAD: 78 TUNABLE_INT_FETCH("drm.debug", &drm_debug_flag); 79 TUNABLE_INT_FETCH("drm.notyet", &drm_notyet_flag); 80 break; 81 } 82 return (0); 83} 84 85static moduledata_t drm_mod = { 86 "drmn", 87 drm_modevent, 88 0 89}; 90DECLARE_MODULE(drmn, drm_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST); 91MODULE_VERSION(drmn, 1); 92MODULE_DEPEND(drmn, agp, 1, 1, 1); 93MODULE_DEPEND(drmn, pci, 1, 1, 1); 94MODULE_DEPEND(drmn, mem, 1, 1, 1); 95MODULE_DEPEND(drmn, iicbus, 1, 1, 1); 96 97static drm_ioctl_desc_t drm_ioctls[256] = { 98 DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version, 0), 99 DRM_IOCTL_DEF(DRM_IOCTL_GET_UNIQUE, drm_getunique, 0), 100 DRM_IOCTL_DEF(DRM_IOCTL_GET_MAGIC, drm_getmagic, 0), 101 DRM_IOCTL_DEF(DRM_IOCTL_IRQ_BUSID, drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY), 102 DRM_IOCTL_DEF(DRM_IOCTL_GET_MAP, drm_getmap, 0), 103 DRM_IOCTL_DEF(DRM_IOCTL_GET_CLIENT, drm_getclient, 0), 104 DRM_IOCTL_DEF(DRM_IOCTL_GET_STATS, drm_getstats, 0), 105 DRM_IOCTL_DEF(DRM_IOCTL_GET_CAP, drm_getcap, DRM_UNLOCKED), 106 DRM_IOCTL_DEF(DRM_IOCTL_SET_VERSION, drm_setversion, DRM_MASTER|DRM_ROOT_ONLY), 107 108 DRM_IOCTL_DEF(DRM_IOCTL_SET_UNIQUE, drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 109 DRM_IOCTL_DEF(DRM_IOCTL_BLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 110 DRM_IOCTL_DEF(DRM_IOCTL_UNBLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 111 DRM_IOCTL_DEF(DRM_IOCTL_AUTH_MAGIC, drm_authmagic, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 112 113 DRM_IOCTL_DEF(DRM_IOCTL_ADD_MAP, drm_addmap_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 114 DRM_IOCTL_DEF(DRM_IOCTL_RM_MAP, drm_rmmap_ioctl, DRM_AUTH), 115 116 DRM_IOCTL_DEF(DRM_IOCTL_SET_SAREA_CTX, drm_setsareactx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 117 DRM_IOCTL_DEF(DRM_IOCTL_GET_SAREA_CTX, drm_getsareactx, DRM_AUTH), 118 119 DRM_IOCTL_DEF(DRM_IOCTL_SET_MASTER, drm_setmaster_ioctl, DRM_ROOT_ONLY), 120 DRM_IOCTL_DEF(DRM_IOCTL_DROP_MASTER, drm_dropmaster_ioctl, DRM_ROOT_ONLY), 121 122 DRM_IOCTL_DEF(DRM_IOCTL_ADD_CTX, drm_addctx, DRM_AUTH|DRM_ROOT_ONLY), 123 DRM_IOCTL_DEF(DRM_IOCTL_RM_CTX, drm_rmctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 124 DRM_IOCTL_DEF(DRM_IOCTL_MOD_CTX, drm_modctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 125 DRM_IOCTL_DEF(DRM_IOCTL_GET_CTX, drm_getctx, DRM_AUTH), 126 DRM_IOCTL_DEF(DRM_IOCTL_SWITCH_CTX, drm_switchctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 127 DRM_IOCTL_DEF(DRM_IOCTL_NEW_CTX, drm_newctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 128 DRM_IOCTL_DEF(DRM_IOCTL_RES_CTX, drm_resctx, DRM_AUTH), 129 130 DRM_IOCTL_DEF(DRM_IOCTL_ADD_DRAW, drm_adddraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 131 DRM_IOCTL_DEF(DRM_IOCTL_RM_DRAW, drm_rmdraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 132 133 DRM_IOCTL_DEF(DRM_IOCTL_LOCK, drm_lock, DRM_AUTH), 134 DRM_IOCTL_DEF(DRM_IOCTL_UNLOCK, drm_unlock, DRM_AUTH), 135 136 DRM_IOCTL_DEF(DRM_IOCTL_FINISH, drm_noop, DRM_AUTH), 137 138 DRM_IOCTL_DEF(DRM_IOCTL_ADD_BUFS, drm_addbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 139 DRM_IOCTL_DEF(DRM_IOCTL_MARK_BUFS, drm_markbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 140 DRM_IOCTL_DEF(DRM_IOCTL_INFO_BUFS, drm_infobufs, DRM_AUTH), 141 DRM_IOCTL_DEF(DRM_IOCTL_MAP_BUFS, drm_mapbufs, DRM_AUTH), 142 DRM_IOCTL_DEF(DRM_IOCTL_FREE_BUFS, drm_freebufs, DRM_AUTH), 143 DRM_IOCTL_DEF(DRM_IOCTL_DMA, drm_dma, DRM_AUTH), 144 145 DRM_IOCTL_DEF(DRM_IOCTL_CONTROL, drm_control, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 146 147 DRM_IOCTL_DEF(DRM_IOCTL_AGP_ACQUIRE, drm_agp_acquire_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 148 DRM_IOCTL_DEF(DRM_IOCTL_AGP_RELEASE, drm_agp_release_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 149 DRM_IOCTL_DEF(DRM_IOCTL_AGP_ENABLE, drm_agp_enable_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 150 DRM_IOCTL_DEF(DRM_IOCTL_AGP_INFO, drm_agp_info_ioctl, DRM_AUTH), 151 DRM_IOCTL_DEF(DRM_IOCTL_AGP_ALLOC, drm_agp_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 152 DRM_IOCTL_DEF(DRM_IOCTL_AGP_FREE, drm_agp_free_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 153 DRM_IOCTL_DEF(DRM_IOCTL_AGP_BIND, drm_agp_bind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 154 DRM_IOCTL_DEF(DRM_IOCTL_AGP_UNBIND, drm_agp_unbind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 155 156 DRM_IOCTL_DEF(DRM_IOCTL_SG_ALLOC, drm_sg_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 157 DRM_IOCTL_DEF(DRM_IOCTL_SG_FREE, drm_sg_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 158 DRM_IOCTL_DEF(DRM_IOCTL_WAIT_VBLANK, drm_wait_vblank, DRM_UNLOCKED), 159 DRM_IOCTL_DEF(DRM_IOCTL_MODESET_CTL, drm_modeset_ctl, 0), 160 DRM_IOCTL_DEF(DRM_IOCTL_UPDATE_DRAW, drm_update_draw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 161 162 DRM_IOCTL_DEF(DRM_IOCTL_GEM_CLOSE, drm_gem_close_ioctl, DRM_UNLOCKED), 163 DRM_IOCTL_DEF(DRM_IOCTL_GEM_FLINK, drm_gem_flink_ioctl, DRM_AUTH|DRM_UNLOCKED), 164 DRM_IOCTL_DEF(DRM_IOCTL_GEM_OPEN, drm_gem_open_ioctl, DRM_AUTH|DRM_UNLOCKED), 165 166 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETRESOURCES, drm_mode_getresources, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 167 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPLANERESOURCES, drm_mode_getplane_res, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 168 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCRTC, drm_mode_getcrtc, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 169 DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETCRTC, drm_mode_setcrtc, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 170 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPLANE, drm_mode_getplane, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 171 DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETPLANE, drm_mode_setplane, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 172 DRM_IOCTL_DEF(DRM_IOCTL_MODE_CURSOR, drm_mode_cursor_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 173 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETGAMMA, drm_mode_gamma_get_ioctl, DRM_MASTER|DRM_UNLOCKED), 174 DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETGAMMA, drm_mode_gamma_set_ioctl, DRM_MASTER|DRM_UNLOCKED), 175 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETENCODER, drm_mode_getencoder, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 176 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCONNECTOR, drm_mode_getconnector, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 177 DRM_IOCTL_DEF(DRM_IOCTL_MODE_ATTACHMODE, drm_mode_attachmode_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 178 DRM_IOCTL_DEF(DRM_IOCTL_MODE_DETACHMODE, drm_mode_detachmode_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 179 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPERTY, drm_mode_getproperty_ioctl, DRM_MASTER | DRM_CONTROL_ALLOW|DRM_UNLOCKED), 180 DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETPROPERTY, drm_mode_connector_property_set_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 181 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPBLOB, drm_mode_getblob_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 182 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETFB, drm_mode_getfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 183 DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB, drm_mode_addfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 184 DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB2, drm_mode_addfb2, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 185 DRM_IOCTL_DEF(DRM_IOCTL_MODE_RMFB, drm_mode_rmfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 186 DRM_IOCTL_DEF(DRM_IOCTL_MODE_PAGE_FLIP, drm_mode_page_flip_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 187 DRM_IOCTL_DEF(DRM_IOCTL_MODE_DIRTYFB, drm_mode_dirtyfb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 188 DRM_IOCTL_DEF(DRM_IOCTL_MODE_CREATE_DUMB, drm_mode_create_dumb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 189 DRM_IOCTL_DEF(DRM_IOCTL_MODE_MAP_DUMB, drm_mode_mmap_dumb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 190 DRM_IOCTL_DEF(DRM_IOCTL_MODE_DESTROY_DUMB, drm_mode_destroy_dumb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 191}; 192 193static struct cdevsw drm_cdevsw = { 194 .d_version = D_VERSION, 195 .d_open = drm_open, 196 .d_read = drm_read, 197 .d_ioctl = drm_ioctl, 198 .d_poll = drm_poll, 199 .d_mmap = drm_mmap, 200 .d_mmap_single = drm_mmap_single, 201 .d_name = "drm", 202 .d_flags = D_TRACKCLOSE 203}; 204 205static int drm_msi = 1; /* Enable by default. */ 206TUNABLE_INT("hw.drm.msi", &drm_msi); 207SYSCTL_NODE(_hw, OID_AUTO, drm, CTLFLAG_RW, NULL, "DRM device"); 208SYSCTL_INT(_hw_drm, OID_AUTO, msi, CTLFLAG_RDTUN, &drm_msi, 1, 209 "Enable MSI interrupts for drm devices"); 210 211static struct drm_msi_blacklist_entry drm_msi_blacklist[] = { 212 {0x8086, 0x2772}, /* Intel i945G */ \ 213 {0x8086, 0x27A2}, /* Intel i945GM */ \ 214 {0x8086, 0x27AE}, /* Intel i945GME */ \ 215 {0, 0} 216}; 217 218static int drm_msi_is_blacklisted(struct drm_device *dev, unsigned long flags) 219{ 220 int i = 0; 221 222 if (dev->driver->use_msi != NULL) { 223 int use_msi; 224 225 use_msi = dev->driver->use_msi(dev, flags); 226 227 return (!use_msi); 228 } 229 230 /* TODO: Maybe move this to a callback in i915? */ 231 for (i = 0; drm_msi_blacklist[i].vendor != 0; i++) { 232 if ((drm_msi_blacklist[i].vendor == dev->pci_vendor) && 233 (drm_msi_blacklist[i].device == dev->pci_device)) { 234 return 1; 235 } 236 } 237 238 return 0; 239} 240 241int drm_probe(device_t kdev, drm_pci_id_list_t *idlist) 242{ 243 drm_pci_id_list_t *id_entry; 244 int vendor, device; 245 246 vendor = pci_get_vendor(kdev); 247 device = pci_get_device(kdev); 248 249 if (pci_get_class(kdev) != PCIC_DISPLAY 250 || pci_get_subclass(kdev) != PCIS_DISPLAY_VGA) 251 return ENXIO; 252 253 id_entry = drm_find_description(vendor, device, idlist); 254 if (id_entry != NULL) { 255 if (!device_get_desc(kdev)) { 256 DRM_DEBUG("desc : %s\n", device_get_desc(kdev)); 257 device_set_desc(kdev, id_entry->name); 258 } 259 return 0; 260 } 261 262 return ENXIO; 263} 264 265int drm_attach(device_t kdev, drm_pci_id_list_t *idlist) 266{ 267 struct drm_device *dev; 268 drm_pci_id_list_t *id_entry; 269 int error, msicount; 270 271 dev = device_get_softc(kdev); 272 273 dev->device = kdev; 274 275 dev->pci_domain = pci_get_domain(dev->device); 276 dev->pci_bus = pci_get_bus(dev->device); 277 dev->pci_slot = pci_get_slot(dev->device); 278 dev->pci_func = pci_get_function(dev->device); 279 280 dev->pci_vendor = pci_get_vendor(dev->device); 281 dev->pci_device = pci_get_device(dev->device); 282 dev->pci_subvendor = pci_get_subvendor(dev->device); 283 dev->pci_subdevice = pci_get_subdevice(dev->device); 284 285 id_entry = drm_find_description(dev->pci_vendor, 286 dev->pci_device, idlist); 287 dev->id_entry = id_entry; 288 289 if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ)) { 290 if (drm_msi && 291 !drm_msi_is_blacklisted(dev, dev->id_entry->driver_private)) { 292 msicount = pci_msi_count(dev->device); 293 DRM_DEBUG("MSI count = %d\n", msicount); 294 if (msicount > 1) 295 msicount = 1; 296 297 if (pci_alloc_msi(dev->device, &msicount) == 0) { 298 DRM_INFO("MSI enabled %d message(s)\n", 299 msicount); 300 dev->msi_enabled = 1; 301 dev->irqrid = 1; 302 } 303 } 304 305 dev->irqr = bus_alloc_resource_any(dev->device, SYS_RES_IRQ, 306 &dev->irqrid, RF_SHAREABLE); 307 if (!dev->irqr) { 308 return (ENOENT); 309 } 310 311 dev->irq = (int) rman_get_start(dev->irqr); 312 } 313 314 mtx_init(&dev->dev_lock, "drmdev", NULL, MTX_DEF); 315 mtx_init(&dev->irq_lock, "drmirq", NULL, MTX_DEF); 316 mtx_init(&dev->vbl_lock, "drmvbl", NULL, MTX_DEF); 317 mtx_init(&dev->drw_lock, "drmdrw", NULL, MTX_DEF); 318 mtx_init(&dev->event_lock, "drmev", NULL, MTX_DEF); 319 sx_init(&dev->dev_struct_lock, "drmslk"); 320 321 error = drm_load(dev); 322 if (error) 323 goto error; 324 325 error = drm_create_cdevs(kdev); 326 if (error) 327 goto error; 328 329 return (error); 330error: 331 if (dev->irqr) { 332 bus_release_resource(dev->device, SYS_RES_IRQ, 333 dev->irqrid, dev->irqr); 334 } 335 if (dev->msi_enabled) { 336 pci_release_msi(dev->device); 337 } 338 return (error); 339} 340 341int 342drm_create_cdevs(device_t kdev) 343{ 344 struct drm_device *dev; 345 int error, unit; 346 347 unit = device_get_unit(kdev); 348 dev = device_get_softc(kdev); 349 350 error = make_dev_p(MAKEDEV_WAITOK | MAKEDEV_CHECKNAME, &dev->devnode, 351 &drm_cdevsw, 0, DRM_DEV_UID, DRM_DEV_GID, 352 DRM_DEV_MODE, "dri/card%d", unit); 353 if (error == 0) 354 dev->devnode->si_drv1 = dev; 355 return (error); 356} 357 358int drm_detach(device_t kdev) 359{ 360 struct drm_device *dev; 361 362 dev = device_get_softc(kdev); 363 drm_unload(dev); 364 if (dev->irqr) { 365 bus_release_resource(dev->device, SYS_RES_IRQ, dev->irqrid, 366 dev->irqr); 367 if (dev->msi_enabled) { 368 pci_release_msi(dev->device); 369 DRM_INFO("MSI released\n"); 370 } 371 } 372 return (0); 373} 374 375#ifndef DRM_DEV_NAME 376#define DRM_DEV_NAME "drm" 377#endif 378 379devclass_t drm_devclass; 380 381drm_pci_id_list_t *drm_find_description(int vendor, int device, 382 drm_pci_id_list_t *idlist) 383{ 384 int i = 0; 385 386 for (i = 0; idlist[i].vendor != 0; i++) { 387 if ((idlist[i].vendor == vendor) && 388 ((idlist[i].device == device) || 389 (idlist[i].device == 0))) { 390 return &idlist[i]; 391 } 392 } 393 return NULL; 394} 395 396static int drm_firstopen(struct drm_device *dev) 397{ 398 drm_local_map_t *map; 399 int i; 400 401 DRM_LOCK_ASSERT(dev); 402 403 /* prebuild the SAREA */ 404 i = drm_addmap(dev, 0, SAREA_MAX, _DRM_SHM, 405 _DRM_CONTAINS_LOCK, &map); 406 if (i != 0) 407 return i; 408 409 if (dev->driver->firstopen) 410 dev->driver->firstopen(dev); 411 412 dev->buf_use = 0; 413 414 if (drm_core_check_feature(dev, DRIVER_HAVE_DMA)) { 415 i = drm_dma_setup(dev); 416 if (i != 0) 417 return i; 418 } 419 420 for (i = 0; i < DRM_HASH_SIZE; i++) { 421 dev->magiclist[i].head = NULL; 422 dev->magiclist[i].tail = NULL; 423 } 424 425 dev->lock.lock_queue = 0; 426 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 427 dev->irq_enabled = 0; 428 dev->context_flag = 0; 429 dev->last_context = 0; 430 dev->if_version = 0; 431 432 dev->buf_sigio = NULL; 433 434 DRM_DEBUG("\n"); 435 436 return 0; 437} 438 439static int drm_lastclose(struct drm_device *dev) 440{ 441 drm_magic_entry_t *pt, *next; 442 drm_local_map_t *map, *mapsave; 443 int i; 444 445 DRM_LOCK_ASSERT(dev); 446 447 DRM_DEBUG("\n"); 448 449 if (dev->driver->lastclose != NULL) 450 dev->driver->lastclose(dev); 451 452 if (!drm_core_check_feature(dev, DRIVER_MODESET) && dev->irq_enabled) 453 drm_irq_uninstall(dev); 454 455 if (dev->unique) { 456 free(dev->unique, DRM_MEM_DRIVER); 457 dev->unique = NULL; 458 dev->unique_len = 0; 459 } 460 /* Clear pid list */ 461 for (i = 0; i < DRM_HASH_SIZE; i++) { 462 for (pt = dev->magiclist[i].head; pt; pt = next) { 463 next = pt->next; 464 free(pt, DRM_MEM_MAGIC); 465 } 466 dev->magiclist[i].head = dev->magiclist[i].tail = NULL; 467 } 468 469 DRM_UNLOCK(dev); 470 drm_drawable_free_all(dev); 471 DRM_LOCK(dev); 472 473 /* Clear AGP information */ 474 if (dev->agp) { 475 drm_agp_mem_t *entry; 476 drm_agp_mem_t *nexte; 477 478 /* Remove AGP resources, but leave dev->agp intact until 479 * drm_unload is called. 480 */ 481 for (entry = dev->agp->memory; entry; entry = nexte) { 482 nexte = entry->next; 483 if (entry->bound) 484 drm_agp_unbind_memory(entry->handle); 485 drm_agp_free_memory(entry->handle); 486 free(entry, DRM_MEM_AGPLISTS); 487 } 488 dev->agp->memory = NULL; 489 490 if (dev->agp->acquired) 491 drm_agp_release(dev); 492 493 dev->agp->acquired = 0; 494 dev->agp->enabled = 0; 495 } 496 if (dev->sg != NULL) { 497 drm_sg_cleanup(dev->sg); 498 dev->sg = NULL; 499 } 500 501 TAILQ_FOREACH_SAFE(map, &dev->maplist, link, mapsave) { 502 if (!(map->flags & _DRM_DRIVER)) 503 drm_rmmap(dev, map); 504 } 505 506 drm_dma_takedown(dev); 507 if (dev->lock.hw_lock) { 508 dev->lock.hw_lock = NULL; /* SHM removed */ 509 dev->lock.file_priv = NULL; 510 DRM_WAKEUP_INT((void *)&dev->lock.lock_queue); 511 } 512 513 return 0; 514} 515 516static int drm_load(struct drm_device *dev) 517{ 518 int i, retcode; 519 520 DRM_DEBUG("\n"); 521 522 TAILQ_INIT(&dev->maplist); 523 dev->map_unrhdr = new_unrhdr(1, ((1 << DRM_MAP_HANDLE_BITS) - 1), NULL); 524 if (dev->map_unrhdr == NULL) { 525 DRM_ERROR("Couldn't allocate map number allocator\n"); 526 return EINVAL; 527 } 528 529 530 drm_mem_init(); 531 drm_sysctl_init(dev); 532 TAILQ_INIT(&dev->files); 533 534 dev->counters = 6; 535 dev->types[0] = _DRM_STAT_LOCK; 536 dev->types[1] = _DRM_STAT_OPENS; 537 dev->types[2] = _DRM_STAT_CLOSES; 538 dev->types[3] = _DRM_STAT_IOCTLS; 539 dev->types[4] = _DRM_STAT_LOCKS; 540 dev->types[5] = _DRM_STAT_UNLOCKS; 541 542 for (i = 0; i < DRM_ARRAY_SIZE(dev->counts); i++) 543 atomic_set(&dev->counts[i], 0); 544 545 INIT_LIST_HEAD(&dev->vblank_event_list); 546 547 if (drm_core_has_AGP(dev)) { 548 if (drm_device_is_agp(dev)) 549 dev->agp = drm_agp_init(); 550 if (drm_core_check_feature(dev, DRIVER_REQUIRE_AGP) && 551 dev->agp == NULL) { 552 DRM_ERROR("Card isn't AGP, or couldn't initialize " 553 "AGP.\n"); 554 retcode = ENOMEM; 555 goto error; 556 } 557 if (dev->agp != NULL && dev->agp->info.ai_aperture_base != 0) { 558 if (drm_mtrr_add(dev->agp->info.ai_aperture_base, 559 dev->agp->info.ai_aperture_size, DRM_MTRR_WC) == 0) 560 dev->agp->mtrr = 1; 561 } 562 } 563 564 retcode = drm_ctxbitmap_init(dev); 565 if (retcode != 0) { 566 DRM_ERROR("Cannot allocate memory for context bitmap.\n"); 567 goto error; 568 } 569 570 dev->drw_unrhdr = new_unrhdr(1, INT_MAX, NULL); 571 if (dev->drw_unrhdr == NULL) { 572 DRM_ERROR("Couldn't allocate drawable number allocator\n"); 573 retcode = ENOMEM; 574 goto error; 575 } 576 577 if (dev->driver->driver_features & DRIVER_GEM) { 578 retcode = drm_gem_init(dev); 579 if (retcode != 0) { 580 DRM_ERROR("Cannot initialize graphics execution " 581 "manager (GEM)\n"); 582 goto error1; 583 } 584 } 585 586 if (dev->driver->load != NULL) { 587 DRM_LOCK(dev); 588 /* Shared code returns -errno. */ 589 retcode = -dev->driver->load(dev, 590 dev->id_entry->driver_private); 591 if (pci_enable_busmaster(dev->device)) 592 DRM_ERROR("Request to enable bus-master failed.\n"); 593 DRM_UNLOCK(dev); 594 if (retcode != 0) 595 goto error1; 596 } 597 598 DRM_INFO("Initialized %s %d.%d.%d %s\n", 599 dev->driver->name, 600 dev->driver->major, 601 dev->driver->minor, 602 dev->driver->patchlevel, 603 dev->driver->date); 604 605 return 0; 606 607error1: 608 delete_unrhdr(dev->drw_unrhdr); 609 drm_gem_destroy(dev); 610error: 611 drm_ctxbitmap_cleanup(dev); 612 drm_sysctl_cleanup(dev); 613 DRM_LOCK(dev); 614 drm_lastclose(dev); 615 DRM_UNLOCK(dev); 616 if (dev->devnode != NULL) 617 destroy_dev(dev->devnode); 618 619 mtx_destroy(&dev->drw_lock); 620 mtx_destroy(&dev->vbl_lock); 621 mtx_destroy(&dev->irq_lock); 622 mtx_destroy(&dev->dev_lock); 623 mtx_destroy(&dev->event_lock); 624 sx_destroy(&dev->dev_struct_lock); 625 626 return retcode; 627} 628 629static void drm_unload(struct drm_device *dev) 630{ 631 int i; 632 633 DRM_DEBUG("\n"); 634 635 drm_sysctl_cleanup(dev); 636 if (dev->devnode != NULL) 637 destroy_dev(dev->devnode); 638 639 drm_ctxbitmap_cleanup(dev); 640 641 if (dev->driver->driver_features & DRIVER_GEM) 642 drm_gem_destroy(dev); 643 644 if (dev->agp && dev->agp->mtrr) { 645 int __unused retcode; 646 647 retcode = drm_mtrr_del(0, dev->agp->info.ai_aperture_base, 648 dev->agp->info.ai_aperture_size, DRM_MTRR_WC); 649 DRM_DEBUG("mtrr_del = %d", retcode); 650 } 651 652 drm_vblank_cleanup(dev); 653 654 DRM_LOCK(dev); 655 drm_lastclose(dev); 656 DRM_UNLOCK(dev); 657 658 /* Clean up PCI resources allocated by drm_bufs.c. We're not really 659 * worried about resource consumption while the DRM is inactive (between 660 * lastclose and firstopen or unload) because these aren't actually 661 * taking up KVA, just keeping the PCI resource allocated. 662 */ 663 for (i = 0; i < DRM_MAX_PCI_RESOURCE; i++) { 664 if (dev->pcir[i] == NULL) 665 continue; 666 bus_release_resource(dev->device, SYS_RES_MEMORY, 667 dev->pcirid[i], dev->pcir[i]); 668 dev->pcir[i] = NULL; 669 } 670 671 if (dev->agp) { 672 free(dev->agp, DRM_MEM_AGPLISTS); 673 dev->agp = NULL; 674 } 675 676 if (dev->driver->unload != NULL) { 677 DRM_LOCK(dev); 678 dev->driver->unload(dev); 679 DRM_UNLOCK(dev); 680 } 681 682 delete_unrhdr(dev->drw_unrhdr); 683 delete_unrhdr(dev->map_unrhdr); 684 685 drm_mem_uninit(); 686 687 if (pci_disable_busmaster(dev->device)) 688 DRM_ERROR("Request to disable bus-master failed.\n"); 689 690 mtx_destroy(&dev->drw_lock); 691 mtx_destroy(&dev->vbl_lock); 692 mtx_destroy(&dev->irq_lock); 693 mtx_destroy(&dev->dev_lock); 694 mtx_destroy(&dev->event_lock); 695 sx_destroy(&dev->dev_struct_lock); 696} 697 698int drm_version(struct drm_device *dev, void *data, struct drm_file *file_priv) 699{ 700 struct drm_version *version = data; 701 int len; 702 703#define DRM_COPY( name, value ) \ 704 len = strlen( value ); \ 705 if ( len > name##_len ) len = name##_len; \ 706 name##_len = strlen( value ); \ 707 if ( len && name ) { \ 708 if ( DRM_COPY_TO_USER( name, value, len ) ) \ 709 return EFAULT; \ 710 } 711 712 version->version_major = dev->driver->major; 713 version->version_minor = dev->driver->minor; 714 version->version_patchlevel = dev->driver->patchlevel; 715 716 DRM_COPY(version->name, dev->driver->name); 717 DRM_COPY(version->date, dev->driver->date); 718 DRM_COPY(version->desc, dev->driver->desc); 719 720 return 0; 721} 722 723int 724drm_open(struct cdev *kdev, int flags, int fmt, DRM_STRUCTPROC *p) 725{ 726 struct drm_device *dev; 727 int retcode; 728 729 dev = kdev->si_drv1; 730 if (dev == NULL) 731 return (ENXIO); 732 733 DRM_DEBUG("open_count = %d\n", dev->open_count); 734 735 retcode = drm_open_helper(kdev, flags, fmt, p, dev); 736 737 if (retcode == 0) { 738 atomic_inc(&dev->counts[_DRM_STAT_OPENS]); 739 DRM_LOCK(dev); 740 mtx_lock(&Giant); 741 device_busy(dev->device); 742 mtx_unlock(&Giant); 743 if (!dev->open_count++) 744 retcode = drm_firstopen(dev); 745 DRM_UNLOCK(dev); 746 } 747 748 return (retcode); 749} 750 751void drm_close(void *data) 752{ 753 struct drm_file *file_priv = data; 754 struct drm_device *dev = file_priv->dev; 755 int retcode = 0; 756 757 DRM_DEBUG("open_count = %d\n", dev->open_count); 758 759 DRM_LOCK(dev); 760 761 if (dev->driver->preclose != NULL) 762 dev->driver->preclose(dev, file_priv); 763 764 /* ======================================================== 765 * Begin inline drm_release 766 */ 767 768 DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n", 769 DRM_CURRENTPID, (long)dev->device, dev->open_count); 770 771 if (dev->driver->driver_features & DRIVER_GEM) 772 drm_gem_release(dev, file_priv); 773 774 if (dev->lock.hw_lock && _DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) 775 && dev->lock.file_priv == file_priv) { 776 DRM_DEBUG("Process %d dead, freeing lock for context %d\n", 777 DRM_CURRENTPID, 778 _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)); 779 if (dev->driver->reclaim_buffers_locked != NULL) 780 dev->driver->reclaim_buffers_locked(dev, file_priv); 781 782 drm_lock_free(&dev->lock, 783 _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)); 784 785 /* FIXME: may require heavy-handed reset of 786 hardware at this point, possibly 787 processed via a callback to the X 788 server. */ 789 } else if (dev->driver->reclaim_buffers_locked != NULL && 790 dev->lock.hw_lock != NULL) { 791 /* The lock is required to reclaim buffers */ 792 for (;;) { 793 if (!dev->lock.hw_lock) { 794 /* Device has been unregistered */ 795 retcode = EINTR; 796 break; 797 } 798 if (drm_lock_take(&dev->lock, DRM_KERNEL_CONTEXT)) { 799 dev->lock.file_priv = file_priv; 800 dev->lock.lock_time = jiffies; 801 atomic_inc(&dev->counts[_DRM_STAT_LOCKS]); 802 break; /* Got lock */ 803 } 804 /* Contention */ 805 retcode = DRM_LOCK_SLEEP(dev, &dev->lock.lock_queue, 806 PCATCH, "drmlk2", 0); 807 if (retcode) 808 break; 809 } 810 if (retcode == 0) { 811 dev->driver->reclaim_buffers_locked(dev, file_priv); 812 drm_lock_free(&dev->lock, DRM_KERNEL_CONTEXT); 813 } 814 } 815 816 if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) && 817 !dev->driver->reclaim_buffers_locked) 818 drm_reclaim_buffers(dev, file_priv); 819 820 funsetown(&dev->buf_sigio); 821 seldrain(&file_priv->event_poll); 822 823 if (dev->driver->postclose != NULL) 824 dev->driver->postclose(dev, file_priv); 825 TAILQ_REMOVE(&dev->files, file_priv, link); 826 free(file_priv, DRM_MEM_FILES); 827 828 /* ======================================================== 829 * End inline drm_release 830 */ 831 832 atomic_inc(&dev->counts[_DRM_STAT_CLOSES]); 833 mtx_lock(&Giant); 834 device_unbusy(dev->device); 835 mtx_unlock(&Giant); 836 if (--dev->open_count == 0) { 837 retcode = drm_lastclose(dev); 838 } 839 840 DRM_UNLOCK(dev); 841} 842 843extern drm_ioctl_desc_t drm_compat_ioctls[]; 844 845/* drm_ioctl is called whenever a process performs an ioctl on /dev/drm. 846 */ 847int drm_ioctl(struct cdev *kdev, u_long cmd, caddr_t data, int flags, 848 DRM_STRUCTPROC *p) 849{ 850 struct drm_device *dev = drm_get_device_from_kdev(kdev); 851 int retcode = 0; 852 drm_ioctl_desc_t *ioctl; 853 int (*func)(struct drm_device *dev, void *data, struct drm_file *file_priv); 854 int nr = DRM_IOCTL_NR(cmd); 855 int is_driver_ioctl = 0; 856 struct drm_file *file_priv; 857 858 retcode = devfs_get_cdevpriv((void **)&file_priv); 859 if (retcode != 0) { 860 DRM_ERROR("can't find authenticator\n"); 861 return EINVAL; 862 } 863 864 atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]); 865 ++file_priv->ioctl_count; 866 867 DRM_DEBUG("pid=%d, cmd=0x%02lx, nr=0x%02x, dev 0x%lx, auth=%d\n", 868 DRM_CURRENTPID, cmd, nr, (long)dev->device, 869 file_priv->authenticated); 870 871 switch (cmd) { 872 case FIONBIO: 873 case FIOASYNC: 874 return 0; 875 876 case FIOSETOWN: 877 return fsetown(*(int *)data, &dev->buf_sigio); 878 879 case FIOGETOWN: 880 *(int *) data = fgetown(&dev->buf_sigio); 881 return 0; 882 } 883 884 if (IOCGROUP(cmd) != DRM_IOCTL_BASE) { 885 DRM_DEBUG("Bad ioctl group 0x%x\n", (int)IOCGROUP(cmd)); 886 return EINVAL; 887 } 888 889#ifdef COMPAT_FREEBSD32 890 /* 891 * Called whenever a 32-bit process running under a 64-bit 892 * kernel performs an ioctl on /dev/drm. 893 */ 894 if (SV_CURPROC_FLAG(SV_ILP32) && drm_compat_ioctls[nr].func != NULL) 895 /* 896 * Assume that ioctls without an explicit compat 897 * routine will just work. This may not always be a 898 * good assumption, but it's better than always 899 * failing. 900 */ 901 ioctl = &drm_compat_ioctls[nr]; 902 else 903#endif 904 ioctl = &drm_ioctls[nr]; 905 /* It's not a core DRM ioctl, try driver-specific. */ 906 if (ioctl->func == NULL && nr >= DRM_COMMAND_BASE) { 907 /* The array entries begin at DRM_COMMAND_BASE ioctl nr */ 908 nr -= DRM_COMMAND_BASE; 909 if (nr > dev->driver->max_ioctl) { 910 DRM_DEBUG("Bad driver ioctl number, 0x%x (of 0x%x)\n", 911 nr, dev->driver->max_ioctl); 912 return EINVAL; 913 } 914#ifdef COMPAT_FREEBSD32 915 if (SV_CURPROC_FLAG(SV_ILP32) && 916 nr < *dev->driver->compat_ioctls_nr && 917 dev->driver->compat_ioctls[nr].func != NULL) 918 ioctl = &dev->driver->compat_ioctls[nr]; 919 else 920#endif 921 ioctl = &dev->driver->ioctls[nr]; 922 is_driver_ioctl = 1; 923 } 924 func = ioctl->func; 925 926 if (func == NULL) { 927 DRM_DEBUG("no function\n"); 928 return EINVAL; 929 } 930 931 if (((ioctl->flags & DRM_ROOT_ONLY) && !DRM_SUSER(p)) || 932 ((ioctl->flags & DRM_AUTH) && !file_priv->authenticated) || 933 ((ioctl->flags & DRM_MASTER) && !file_priv->master)) 934 return EACCES; 935 936 if (is_driver_ioctl) { 937 if ((ioctl->flags & DRM_UNLOCKED) == 0) 938 DRM_LOCK(dev); 939 /* shared code returns -errno */ 940 retcode = -func(dev, data, file_priv); 941 if ((ioctl->flags & DRM_UNLOCKED) == 0) 942 DRM_UNLOCK(dev); 943 } else { 944 retcode = func(dev, data, file_priv); 945 } 946 947 if (retcode != 0) 948 DRM_DEBUG(" returning %d\n", retcode); 949 if (retcode != 0 && 950 (drm_debug_flag & DRM_DEBUGBITS_FAILED_IOCTL) != 0) { 951 printf( 952"pid %d, cmd 0x%02lx, nr 0x%02x/%1d, dev 0x%lx, auth %d, res %d\n", 953 DRM_CURRENTPID, cmd, nr, is_driver_ioctl, (long)dev->device, 954 file_priv->authenticated, retcode); 955 } 956 957 return retcode; 958} 959 960drm_local_map_t *drm_getsarea(struct drm_device *dev) 961{ 962 drm_local_map_t *map; 963 964 DRM_LOCK_ASSERT(dev); 965 TAILQ_FOREACH(map, &dev->maplist, link) { 966 if (map->type == _DRM_SHM && (map->flags & _DRM_CONTAINS_LOCK)) 967 return map; 968 } 969 970 return NULL; 971} 972 973int 974drm_add_busid_modesetting(struct drm_device *dev, struct sysctl_ctx_list *ctx, 975 struct sysctl_oid *top) 976{ 977 struct sysctl_oid *oid; 978 979 snprintf(dev->busid_str, sizeof(dev->busid_str), 980 "pci:%04x:%02x:%02x.%d", dev->pci_domain, dev->pci_bus, 981 dev->pci_slot, dev->pci_func); 982 oid = SYSCTL_ADD_STRING(ctx, SYSCTL_CHILDREN(top), OID_AUTO, "busid", 983 CTLFLAG_RD, dev->busid_str, 0, NULL); 984 if (oid == NULL) 985 return (ENOMEM); 986 dev->modesetting = (dev->driver->driver_features & DRIVER_MODESET) != 0; 987 oid = SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(top), OID_AUTO, 988 "modesetting", CTLFLAG_RD, &dev->modesetting, 0, NULL); 989 if (oid == NULL) 990 return (ENOMEM); 991 992 return (0); 993} 994 995static int 996drm_mmap_single(struct cdev *kdev, vm_ooffset_t *offset, vm_size_t size, 997 struct vm_object **obj_res, int nprot) 998{ 999 struct drm_device *dev; 1000 1001 dev = drm_get_device_from_kdev(kdev); 1002 if (dev->drm_ttm_bdev != NULL) { 1003 return (ttm_bo_mmap_single(dev->drm_ttm_bdev, offset, size, 1004 obj_res, nprot)); 1005 } else if ((dev->driver->driver_features & DRIVER_GEM) != 0) { 1006 return (drm_gem_mmap_single(dev, offset, size, obj_res, nprot)); 1007 } else { 1008 return (ENODEV); 1009 } 1010} 1011 1012#if DRM_LINUX 1013 1014#include <sys/sysproto.h> 1015 1016MODULE_DEPEND(DRIVER_NAME, linux, 1, 1, 1); 1017 1018#define LINUX_IOCTL_DRM_MIN 0x6400 1019#define LINUX_IOCTL_DRM_MAX 0x64ff 1020 1021static linux_ioctl_function_t drm_linux_ioctl; 1022static struct linux_ioctl_handler drm_handler = {drm_linux_ioctl, 1023 LINUX_IOCTL_DRM_MIN, LINUX_IOCTL_DRM_MAX}; 1024 1025/* The bits for in/out are switched on Linux */ 1026#define LINUX_IOC_IN IOC_OUT 1027#define LINUX_IOC_OUT IOC_IN 1028 1029static int 1030drm_linux_ioctl(DRM_STRUCTPROC *p, struct linux_ioctl_args* args) 1031{ 1032 int error; 1033 int cmd = args->cmd; 1034 1035 args->cmd &= ~(LINUX_IOC_IN | LINUX_IOC_OUT); 1036 if (cmd & LINUX_IOC_IN) 1037 args->cmd |= IOC_IN; 1038 if (cmd & LINUX_IOC_OUT) 1039 args->cmd |= IOC_OUT; 1040 1041 error = ioctl(p, (struct ioctl_args *)args); 1042 1043 return error; 1044} 1045#endif /* DRM_LINUX */ 1046 1047 1048static int 1049drm_core_init(void *arg) 1050{ 1051 1052 drm_global_init(); 1053 1054#if DRM_LINUX 1055 linux_ioctl_register_handler(&drm_handler); 1056#endif /* DRM_LINUX */ 1057 1058 DRM_INFO("Initialized %s %d.%d.%d %s\n", 1059 CORE_NAME, CORE_MAJOR, CORE_MINOR, CORE_PATCHLEVEL, CORE_DATE); 1060 return 0; 1061} 1062 1063static void 1064drm_core_exit(void *arg) 1065{ 1066 1067#if DRM_LINUX 1068 linux_ioctl_unregister_handler(&drm_handler); 1069#endif /* DRM_LINUX */ 1070 1071 drm_global_release(); 1072} 1073 1074SYSINIT(drm_register, SI_SUB_KLD, SI_ORDER_MIDDLE, 1075 drm_core_init, NULL); 1076SYSUNINIT(drm_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE, 1077 drm_core_exit, NULL); 1078 1079bool 1080dmi_check_system(const struct dmi_system_id *sysid) 1081{ 1082 1083 /* XXXKIB */ 1084 return (false); 1085} 1086