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 /* 60 * Default to use monotonic timestamps for wait-for-vblank and page-flip 61 * complete events. 62 */ 63 unsigned int drm_timestamp_monotonic = 1; 64 65 static int drm_load(struct drm_device *dev); 66 static void drm_unload(struct drm_device *dev); 67 static drm_pci_id_list_t *drm_find_description(int vendor, int device, 68 drm_pci_id_list_t *idlist); 69 static int drm_mmap_single(struct cdev *kdev, vm_ooffset_t *offset, 70 vm_size_t size, struct vm_object **obj_res, int nprot); 71 72 static int 73 drm_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 85 static moduledata_t drm_mod = { 86 "drmn", 87 drm_modevent, 88 0 89 }; 90 DECLARE_MODULE(drmn, drm_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST); 91 MODULE_VERSION(drmn, 1); 92 MODULE_DEPEND(drmn, agp, 1, 1, 1); 93 MODULE_DEPEND(drmn, pci, 1, 1, 1); 94 MODULE_DEPEND(drmn, mem, 1, 1, 1); 95 MODULE_DEPEND(drmn, iicbus, 1, 1, 1); 96 97 static 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 DRM_IOCTL_DEF(DRM_IOCTL_MODE_OBJ_GETPROPERTIES, drm_mode_obj_get_properties_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 192 DRM_IOCTL_DEF(DRM_IOCTL_MODE_OBJ_SETPROPERTY, drm_mode_obj_set_property_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 193 }; 194 195 static struct cdevsw drm_cdevsw = { 196 .d_version = D_VERSION, 197 .d_open = drm_open, 198 .d_read = drm_read, 199 .d_ioctl = drm_ioctl, 200 .d_poll = drm_poll, 201 .d_mmap = drm_mmap, 202 .d_mmap_single = drm_mmap_single, 203 .d_name = "drm", 204 .d_flags = D_TRACKCLOSE 205 }; 206 207 static int drm_msi = 1; /* Enable by default. */ 208 SYSCTL_NODE(_hw, OID_AUTO, drm, CTLFLAG_RW, NULL, "DRM device"); 209 SYSCTL_INT(_hw_drm, OID_AUTO, msi, CTLFLAG_RDTUN, &drm_msi, 1, 210 "Enable MSI interrupts for drm devices"); 211 212 static struct drm_msi_blacklist_entry drm_msi_blacklist[] = { 213 {0x8086, 0x2772}, /* Intel i945G */ \ 214 {0x8086, 0x27A2}, /* Intel i945GM */ \ 215 {0x8086, 0x27AE}, /* Intel i945GME */ \ 216 {0, 0} 217 }; 218 219 static int drm_msi_is_blacklisted(struct drm_device *dev, unsigned long flags) 220 { 221 int i = 0; 222 223 if (dev->driver->use_msi != NULL) { 224 int use_msi; 225 226 use_msi = dev->driver->use_msi(dev, flags); 227 228 return (!use_msi); 229 } 230 231 /* TODO: Maybe move this to a callback in i915? */ 232 for (i = 0; drm_msi_blacklist[i].vendor != 0; i++) { 233 if ((drm_msi_blacklist[i].vendor == dev->pci_vendor) && 234 (drm_msi_blacklist[i].device == dev->pci_device)) { 235 return 1; 236 } 237 } 238 239 return 0; 240 } 241 242 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist) 243 { 244 drm_pci_id_list_t *id_entry; 245 int vendor, device; 246 247 vendor = pci_get_vendor(kdev); 248 device = pci_get_device(kdev); 249 250 if (pci_get_class(kdev) != PCIC_DISPLAY 251 || (pci_get_subclass(kdev) != PCIS_DISPLAY_VGA && 252 pci_get_subclass(kdev) != PCIS_DISPLAY_OTHER)) 253 return ENXIO; 254 255 id_entry = drm_find_description(vendor, device, idlist); 256 if (id_entry != NULL) { 257 if (!device_get_desc(kdev)) { 258 DRM_DEBUG("desc : %s\n", device_get_desc(kdev)); 259 device_set_desc(kdev, id_entry->name); 260 } 261 return 0; 262 } 263 264 return ENXIO; 265 } 266 267 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist) 268 { 269 struct drm_device *dev; 270 drm_pci_id_list_t *id_entry; 271 int error, msicount; 272 273 dev = device_get_softc(kdev); 274 275 dev->device = kdev; 276 277 dev->pci_domain = pci_get_domain(dev->device); 278 dev->pci_bus = pci_get_bus(dev->device); 279 dev->pci_slot = pci_get_slot(dev->device); 280 dev->pci_func = pci_get_function(dev->device); 281 282 dev->pci_vendor = pci_get_vendor(dev->device); 283 dev->pci_device = pci_get_device(dev->device); 284 dev->pci_subvendor = pci_get_subvendor(dev->device); 285 dev->pci_subdevice = pci_get_subdevice(dev->device); 286 287 id_entry = drm_find_description(dev->pci_vendor, 288 dev->pci_device, idlist); 289 dev->id_entry = id_entry; 290 291 if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ)) { 292 if (drm_msi && 293 !drm_msi_is_blacklisted(dev, dev->id_entry->driver_private)) { 294 msicount = pci_msi_count(dev->device); 295 DRM_DEBUG("MSI count = %d\n", msicount); 296 if (msicount > 1) 297 msicount = 1; 298 299 if (pci_alloc_msi(dev->device, &msicount) == 0) { 300 DRM_INFO("MSI enabled %d message(s)\n", 301 msicount); 302 dev->msi_enabled = 1; 303 dev->irqrid = 1; 304 } 305 } 306 307 dev->irqr = bus_alloc_resource_any(dev->device, SYS_RES_IRQ, 308 &dev->irqrid, RF_SHAREABLE); 309 if (!dev->irqr) { 310 return (ENOENT); 311 } 312 313 dev->irq = (int) rman_get_start(dev->irqr); 314 } 315 316 mtx_init(&dev->dev_lock, "drmdev", NULL, MTX_DEF); 317 mtx_init(&dev->irq_lock, "drmirq", NULL, MTX_DEF); 318 mtx_init(&dev->vbl_lock, "drmvbl", NULL, MTX_DEF); 319 mtx_init(&dev->drw_lock, "drmdrw", NULL, MTX_DEF); 320 mtx_init(&dev->event_lock, "drmev", NULL, MTX_DEF); 321 sx_init(&dev->dev_struct_lock, "drmslk"); 322 323 error = drm_load(dev); 324 if (error) 325 goto error; 326 327 error = drm_create_cdevs(kdev); 328 if (error) 329 goto error; 330 331 return (error); 332 error: 333 if (dev->irqr) { 334 bus_release_resource(dev->device, SYS_RES_IRQ, 335 dev->irqrid, dev->irqr); 336 } 337 if (dev->msi_enabled) { 338 pci_release_msi(dev->device); 339 } 340 return (error); 341 } 342 343 int 344 drm_create_cdevs(device_t kdev) 345 { 346 struct drm_device *dev; 347 int error, unit; 348 349 unit = device_get_unit(kdev); 350 dev = device_get_softc(kdev); 351 352 error = make_dev_p(MAKEDEV_WAITOK | MAKEDEV_CHECKNAME, &dev->devnode, 353 &drm_cdevsw, 0, DRM_DEV_UID, DRM_DEV_GID, 354 DRM_DEV_MODE, "dri/card%d", unit); 355 if (error == 0) 356 dev->devnode->si_drv1 = dev; 357 return (error); 358 } 359 360 int drm_detach(device_t kdev) 361 { 362 struct drm_device *dev; 363 364 dev = device_get_softc(kdev); 365 drm_unload(dev); 366 if (dev->irqr) { 367 bus_release_resource(dev->device, SYS_RES_IRQ, dev->irqrid, 368 dev->irqr); 369 if (dev->msi_enabled) { 370 pci_release_msi(dev->device); 371 DRM_INFO("MSI released\n"); 372 } 373 } 374 return (0); 375 } 376 377 #ifndef DRM_DEV_NAME 378 #define DRM_DEV_NAME "drm" 379 #endif 380 381 devclass_t drm_devclass; 382 383 drm_pci_id_list_t *drm_find_description(int vendor, int device, 384 drm_pci_id_list_t *idlist) 385 { 386 int i = 0; 387 388 for (i = 0; idlist[i].vendor != 0; i++) { 389 if ((idlist[i].vendor == vendor) && 390 ((idlist[i].device == device) || 391 (idlist[i].device == 0))) { 392 return &idlist[i]; 393 } 394 } 395 return NULL; 396 } 397 398 static int drm_firstopen(struct drm_device *dev) 399 { 400 drm_local_map_t *map; 401 int i; 402 403 DRM_LOCK_ASSERT(dev); 404 405 /* prebuild the SAREA */ 406 i = drm_addmap(dev, 0, SAREA_MAX, _DRM_SHM, 407 _DRM_CONTAINS_LOCK, &map); 408 if (i != 0) 409 return i; 410 411 if (dev->driver->firstopen) 412 dev->driver->firstopen(dev); 413 414 dev->buf_use = 0; 415 416 if (drm_core_check_feature(dev, DRIVER_HAVE_DMA)) { 417 i = drm_dma_setup(dev); 418 if (i != 0) 419 return i; 420 } 421 422 for (i = 0; i < DRM_HASH_SIZE; i++) { 423 dev->magiclist[i].head = NULL; 424 dev->magiclist[i].tail = NULL; 425 } 426 427 dev->lock.lock_queue = 0; 428 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 429 dev->irq_enabled = 0; 430 dev->context_flag = 0; 431 dev->last_context = 0; 432 dev->if_version = 0; 433 434 dev->buf_sigio = NULL; 435 436 DRM_DEBUG("\n"); 437 438 return 0; 439 } 440 441 static int drm_lastclose(struct drm_device *dev) 442 { 443 drm_magic_entry_t *pt, *next; 444 drm_local_map_t *map, *mapsave; 445 int i; 446 447 DRM_LOCK_ASSERT(dev); 448 449 DRM_DEBUG("\n"); 450 451 if (dev->driver->lastclose != NULL) 452 dev->driver->lastclose(dev); 453 454 if (!drm_core_check_feature(dev, DRIVER_MODESET) && dev->irq_enabled) 455 drm_irq_uninstall(dev); 456 457 if (dev->unique) { 458 free(dev->unique, DRM_MEM_DRIVER); 459 dev->unique = NULL; 460 dev->unique_len = 0; 461 } 462 /* Clear pid list */ 463 for (i = 0; i < DRM_HASH_SIZE; i++) { 464 for (pt = dev->magiclist[i].head; pt; pt = next) { 465 next = pt->next; 466 free(pt, DRM_MEM_MAGIC); 467 } 468 dev->magiclist[i].head = dev->magiclist[i].tail = NULL; 469 } 470 471 DRM_UNLOCK(dev); 472 drm_drawable_free_all(dev); 473 DRM_LOCK(dev); 474 475 /* Clear AGP information */ 476 if (dev->agp) { 477 drm_agp_mem_t *entry; 478 drm_agp_mem_t *nexte; 479 480 /* Remove AGP resources, but leave dev->agp intact until 481 * drm_unload is called. 482 */ 483 for (entry = dev->agp->memory; entry; entry = nexte) { 484 nexte = entry->next; 485 if (entry->bound) 486 drm_agp_unbind_memory(entry->handle); 487 drm_agp_free_memory(entry->handle); 488 free(entry, DRM_MEM_AGPLISTS); 489 } 490 dev->agp->memory = NULL; 491 492 if (dev->agp->acquired) 493 drm_agp_release(dev); 494 495 dev->agp->acquired = 0; 496 dev->agp->enabled = 0; 497 } 498 if (dev->sg != NULL) { 499 drm_sg_cleanup(dev->sg); 500 dev->sg = NULL; 501 } 502 503 TAILQ_FOREACH_SAFE(map, &dev->maplist, link, mapsave) { 504 if (!(map->flags & _DRM_DRIVER)) 505 drm_rmmap(dev, map); 506 } 507 508 drm_dma_takedown(dev); 509 if (dev->lock.hw_lock) { 510 dev->lock.hw_lock = NULL; /* SHM removed */ 511 dev->lock.file_priv = NULL; 512 DRM_WAKEUP_INT((void *)&dev->lock.lock_queue); 513 } 514 515 return 0; 516 } 517 518 static int drm_load(struct drm_device *dev) 519 { 520 int i, retcode; 521 522 DRM_DEBUG("\n"); 523 524 TAILQ_INIT(&dev->maplist); 525 dev->map_unrhdr = new_unrhdr(1, ((1 << DRM_MAP_HANDLE_BITS) - 1), NULL); 526 if (dev->map_unrhdr == NULL) { 527 DRM_ERROR("Couldn't allocate map number allocator\n"); 528 return EINVAL; 529 } 530 531 532 drm_mem_init(); 533 drm_sysctl_init(dev); 534 TAILQ_INIT(&dev->files); 535 536 dev->counters = 6; 537 dev->types[0] = _DRM_STAT_LOCK; 538 dev->types[1] = _DRM_STAT_OPENS; 539 dev->types[2] = _DRM_STAT_CLOSES; 540 dev->types[3] = _DRM_STAT_IOCTLS; 541 dev->types[4] = _DRM_STAT_LOCKS; 542 dev->types[5] = _DRM_STAT_UNLOCKS; 543 544 for (i = 0; i < DRM_ARRAY_SIZE(dev->counts); i++) 545 atomic_set(&dev->counts[i], 0); 546 547 INIT_LIST_HEAD(&dev->vblank_event_list); 548 549 if (drm_core_has_AGP(dev)) { 550 if (drm_device_is_agp(dev)) 551 dev->agp = drm_agp_init(); 552 if (drm_core_check_feature(dev, DRIVER_REQUIRE_AGP) && 553 dev->agp == NULL) { 554 DRM_ERROR("Card isn't AGP, or couldn't initialize " 555 "AGP.\n"); 556 retcode = ENOMEM; 557 goto error; 558 } 559 if (dev->agp != NULL && dev->agp->info.ai_aperture_base != 0) { 560 if (drm_mtrr_add(dev->agp->info.ai_aperture_base, 561 dev->agp->info.ai_aperture_size, DRM_MTRR_WC) == 0) 562 dev->agp->mtrr = 1; 563 } 564 } 565 566 retcode = drm_ctxbitmap_init(dev); 567 if (retcode != 0) { 568 DRM_ERROR("Cannot allocate memory for context bitmap.\n"); 569 goto error; 570 } 571 572 dev->drw_unrhdr = new_unrhdr(1, INT_MAX, NULL); 573 if (dev->drw_unrhdr == NULL) { 574 DRM_ERROR("Couldn't allocate drawable number allocator\n"); 575 retcode = ENOMEM; 576 goto error; 577 } 578 579 if (dev->driver->driver_features & DRIVER_GEM) { 580 retcode = drm_gem_init(dev); 581 if (retcode != 0) { 582 DRM_ERROR("Cannot initialize graphics execution " 583 "manager (GEM)\n"); 584 goto error1; 585 } 586 } 587 588 if (dev->driver->load != NULL) { 589 DRM_LOCK(dev); 590 /* Shared code returns -errno. */ 591 retcode = -dev->driver->load(dev, 592 dev->id_entry->driver_private); 593 if (pci_enable_busmaster(dev->device)) 594 DRM_ERROR("Request to enable bus-master failed.\n"); 595 DRM_UNLOCK(dev); 596 if (retcode != 0) 597 goto error1; 598 } 599 600 DRM_INFO("Initialized %s %d.%d.%d %s\n", 601 dev->driver->name, 602 dev->driver->major, 603 dev->driver->minor, 604 dev->driver->patchlevel, 605 dev->driver->date); 606 607 return 0; 608 609 error1: 610 delete_unrhdr(dev->drw_unrhdr); 611 drm_gem_destroy(dev); 612 error: 613 drm_ctxbitmap_cleanup(dev); 614 drm_sysctl_cleanup(dev); 615 DRM_LOCK(dev); 616 drm_lastclose(dev); 617 DRM_UNLOCK(dev); 618 if (dev->devnode != NULL) 619 destroy_dev(dev->devnode); 620 621 mtx_destroy(&dev->drw_lock); 622 mtx_destroy(&dev->vbl_lock); 623 mtx_destroy(&dev->irq_lock); 624 mtx_destroy(&dev->dev_lock); 625 mtx_destroy(&dev->event_lock); 626 sx_destroy(&dev->dev_struct_lock); 627 628 return retcode; 629 } 630 631 static void drm_unload(struct drm_device *dev) 632 { 633 int i; 634 635 DRM_DEBUG("\n"); 636 637 drm_sysctl_cleanup(dev); 638 if (dev->devnode != NULL) 639 destroy_dev(dev->devnode); 640 641 drm_ctxbitmap_cleanup(dev); 642 643 if (dev->driver->driver_features & DRIVER_GEM) 644 drm_gem_destroy(dev); 645 646 if (dev->agp && dev->agp->mtrr) { 647 int __unused retcode; 648 649 retcode = drm_mtrr_del(0, dev->agp->info.ai_aperture_base, 650 dev->agp->info.ai_aperture_size, DRM_MTRR_WC); 651 DRM_DEBUG("mtrr_del = %d", retcode); 652 } 653 654 drm_vblank_cleanup(dev); 655 656 DRM_LOCK(dev); 657 drm_lastclose(dev); 658 DRM_UNLOCK(dev); 659 660 /* Clean up PCI resources allocated by drm_bufs.c. We're not really 661 * worried about resource consumption while the DRM is inactive (between 662 * lastclose and firstopen or unload) because these aren't actually 663 * taking up KVA, just keeping the PCI resource allocated. 664 */ 665 for (i = 0; i < DRM_MAX_PCI_RESOURCE; i++) { 666 if (dev->pcir[i] == NULL) 667 continue; 668 bus_release_resource(dev->device, SYS_RES_MEMORY, 669 dev->pcirid[i], dev->pcir[i]); 670 dev->pcir[i] = NULL; 671 } 672 673 if (dev->agp) { 674 free(dev->agp, DRM_MEM_AGPLISTS); 675 dev->agp = NULL; 676 } 677 678 if (dev->driver->unload != NULL) { 679 DRM_LOCK(dev); 680 dev->driver->unload(dev); 681 DRM_UNLOCK(dev); 682 } 683 684 delete_unrhdr(dev->drw_unrhdr); 685 delete_unrhdr(dev->map_unrhdr); 686 687 drm_mem_uninit(); 688 689 if (pci_disable_busmaster(dev->device)) 690 DRM_ERROR("Request to disable bus-master failed.\n"); 691 692 mtx_destroy(&dev->drw_lock); 693 mtx_destroy(&dev->vbl_lock); 694 mtx_destroy(&dev->irq_lock); 695 mtx_destroy(&dev->dev_lock); 696 mtx_destroy(&dev->event_lock); 697 sx_destroy(&dev->dev_struct_lock); 698 } 699 700 int drm_version(struct drm_device *dev, void *data, struct drm_file *file_priv) 701 { 702 struct drm_version *version = data; 703 int len; 704 705 #define DRM_COPY( name, value ) \ 706 len = strlen( value ); \ 707 if ( len > name##_len ) len = name##_len; \ 708 name##_len = strlen( value ); \ 709 if ( len && name ) { \ 710 if ( DRM_COPY_TO_USER( name, value, len ) ) \ 711 return EFAULT; \ 712 } 713 714 version->version_major = dev->driver->major; 715 version->version_minor = dev->driver->minor; 716 version->version_patchlevel = dev->driver->patchlevel; 717 718 DRM_COPY(version->name, dev->driver->name); 719 DRM_COPY(version->date, dev->driver->date); 720 DRM_COPY(version->desc, dev->driver->desc); 721 722 return 0; 723 } 724 725 int 726 drm_open(struct cdev *kdev, int flags, int fmt, DRM_STRUCTPROC *p) 727 { 728 struct drm_device *dev; 729 int retcode; 730 731 dev = kdev->si_drv1; 732 if (dev == NULL) 733 return (ENXIO); 734 735 DRM_DEBUG("open_count = %d\n", dev->open_count); 736 737 retcode = drm_open_helper(kdev, flags, fmt, p, dev); 738 739 if (retcode == 0) { 740 atomic_inc(&dev->counts[_DRM_STAT_OPENS]); 741 DRM_LOCK(dev); 742 mtx_lock(&Giant); 743 device_busy(dev->device); 744 mtx_unlock(&Giant); 745 if (!dev->open_count++) 746 retcode = drm_firstopen(dev); 747 DRM_UNLOCK(dev); 748 } 749 750 return (retcode); 751 } 752 753 void drm_close(void *data) 754 { 755 struct drm_file *file_priv = data; 756 struct drm_device *dev = file_priv->dev; 757 int retcode = 0; 758 759 DRM_DEBUG("open_count = %d\n", dev->open_count); 760 761 DRM_LOCK(dev); 762 763 if (dev->driver->preclose != NULL) 764 dev->driver->preclose(dev, file_priv); 765 766 /* ======================================================== 767 * Begin inline drm_release 768 */ 769 770 DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n", 771 DRM_CURRENTPID, (long)dev->device, dev->open_count); 772 773 if (dev->driver->driver_features & DRIVER_GEM) 774 drm_gem_release(dev, file_priv); 775 776 if (dev->lock.hw_lock && _DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) 777 && dev->lock.file_priv == file_priv) { 778 DRM_DEBUG("Process %d dead, freeing lock for context %d\n", 779 DRM_CURRENTPID, 780 _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)); 781 if (dev->driver->reclaim_buffers_locked != NULL) 782 dev->driver->reclaim_buffers_locked(dev, file_priv); 783 784 drm_lock_free(&dev->lock, 785 _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)); 786 787 /* FIXME: may require heavy-handed reset of 788 hardware at this point, possibly 789 processed via a callback to the X 790 server. */ 791 } else if (dev->driver->reclaim_buffers_locked != NULL && 792 dev->lock.hw_lock != NULL) { 793 /* The lock is required to reclaim buffers */ 794 for (;;) { 795 if (!dev->lock.hw_lock) { 796 /* Device has been unregistered */ 797 retcode = EINTR; 798 break; 799 } 800 if (drm_lock_take(&dev->lock, DRM_KERNEL_CONTEXT)) { 801 dev->lock.file_priv = file_priv; 802 dev->lock.lock_time = jiffies; 803 atomic_inc(&dev->counts[_DRM_STAT_LOCKS]); 804 break; /* Got lock */ 805 } 806 /* Contention */ 807 retcode = DRM_LOCK_SLEEP(dev, &dev->lock.lock_queue, 808 PCATCH, "drmlk2", 0); 809 if (retcode) 810 break; 811 } 812 if (retcode == 0) { 813 dev->driver->reclaim_buffers_locked(dev, file_priv); 814 drm_lock_free(&dev->lock, DRM_KERNEL_CONTEXT); 815 } 816 } 817 818 if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) && 819 !dev->driver->reclaim_buffers_locked) 820 drm_reclaim_buffers(dev, file_priv); 821 822 funsetown(&dev->buf_sigio); 823 seldrain(&file_priv->event_poll); 824 825 if (dev->driver->postclose != NULL) 826 dev->driver->postclose(dev, file_priv); 827 TAILQ_REMOVE(&dev->files, file_priv, link); 828 free(file_priv, DRM_MEM_FILES); 829 830 /* ======================================================== 831 * End inline drm_release 832 */ 833 834 atomic_inc(&dev->counts[_DRM_STAT_CLOSES]); 835 mtx_lock(&Giant); 836 device_unbusy(dev->device); 837 mtx_unlock(&Giant); 838 if (--dev->open_count == 0) { 839 retcode = drm_lastclose(dev); 840 } 841 842 DRM_UNLOCK(dev); 843 } 844 845 extern drm_ioctl_desc_t drm_compat_ioctls[]; 846 847 /* drm_ioctl is called whenever a process performs an ioctl on /dev/drm. 848 */ 849 int drm_ioctl(struct cdev *kdev, u_long cmd, caddr_t data, int flags, 850 DRM_STRUCTPROC *p) 851 { 852 struct drm_device *dev = drm_get_device_from_kdev(kdev); 853 int retcode = 0; 854 drm_ioctl_desc_t *ioctl; 855 int (*func)(struct drm_device *dev, void *data, struct drm_file *file_priv); 856 int nr = DRM_IOCTL_NR(cmd); 857 int is_driver_ioctl = 0; 858 struct drm_file *file_priv; 859 860 retcode = devfs_get_cdevpriv((void **)&file_priv); 861 if (retcode != 0) { 862 DRM_ERROR("can't find authenticator\n"); 863 return EINVAL; 864 } 865 866 atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]); 867 ++file_priv->ioctl_count; 868 869 DRM_DEBUG("pid=%d, cmd=0x%02lx, nr=0x%02x, dev 0x%lx, auth=%d\n", 870 DRM_CURRENTPID, cmd, nr, (long)dev->device, 871 file_priv->authenticated); 872 873 switch (cmd) { 874 case FIONBIO: 875 case FIOASYNC: 876 return 0; 877 878 case FIOSETOWN: 879 return fsetown(*(int *)data, &dev->buf_sigio); 880 881 case FIOGETOWN: 882 *(int *) data = fgetown(&dev->buf_sigio); 883 return 0; 884 } 885 886 if (IOCGROUP(cmd) != DRM_IOCTL_BASE) { 887 DRM_DEBUG("Bad ioctl group 0x%x\n", (int)IOCGROUP(cmd)); 888 return EINVAL; 889 } 890 891 #ifdef COMPAT_FREEBSD32 892 /* 893 * Called whenever a 32-bit process running under a 64-bit 894 * kernel performs an ioctl on /dev/drm. 895 */ 896 if (SV_CURPROC_FLAG(SV_ILP32) && drm_compat_ioctls[nr].func != NULL) 897 /* 898 * Assume that ioctls without an explicit compat 899 * routine will just work. This may not always be a 900 * good assumption, but it's better than always 901 * failing. 902 */ 903 ioctl = &drm_compat_ioctls[nr]; 904 else 905 #endif 906 ioctl = &drm_ioctls[nr]; 907 /* It's not a core DRM ioctl, try driver-specific. */ 908 if (ioctl->func == NULL && nr >= DRM_COMMAND_BASE) { 909 /* The array entries begin at DRM_COMMAND_BASE ioctl nr */ 910 nr -= DRM_COMMAND_BASE; 911 if (nr >= dev->driver->max_ioctl) { 912 DRM_DEBUG("Bad driver ioctl number, 0x%x (of 0x%x)\n", 913 nr, dev->driver->max_ioctl); 914 return EINVAL; 915 } 916 #ifdef COMPAT_FREEBSD32 917 if (SV_CURPROC_FLAG(SV_ILP32) && 918 nr < *dev->driver->compat_ioctls_nr && 919 dev->driver->compat_ioctls[nr].func != NULL) 920 ioctl = &dev->driver->compat_ioctls[nr]; 921 else 922 #endif 923 ioctl = &dev->driver->ioctls[nr]; 924 is_driver_ioctl = 1; 925 } 926 func = ioctl->func; 927 928 if (func == NULL) { 929 DRM_DEBUG("no function\n"); 930 return EINVAL; 931 } 932 933 if (((ioctl->flags & DRM_ROOT_ONLY) && !DRM_SUSER(p)) || 934 ((ioctl->flags & DRM_AUTH) && !file_priv->authenticated) || 935 ((ioctl->flags & DRM_MASTER) && !file_priv->master)) 936 return EACCES; 937 938 if (is_driver_ioctl) { 939 if ((ioctl->flags & DRM_UNLOCKED) == 0) 940 DRM_LOCK(dev); 941 /* shared code returns -errno */ 942 retcode = -func(dev, data, file_priv); 943 if ((ioctl->flags & DRM_UNLOCKED) == 0) 944 DRM_UNLOCK(dev); 945 } else { 946 retcode = func(dev, data, file_priv); 947 } 948 949 if (retcode != 0) 950 DRM_DEBUG(" returning %d\n", retcode); 951 if (retcode != 0 && 952 (drm_debug_flag & DRM_DEBUGBITS_FAILED_IOCTL) != 0) { 953 printf( 954 "pid %d, cmd 0x%02lx, nr 0x%02x/%1d, dev 0x%lx, auth %d, res %d\n", 955 DRM_CURRENTPID, cmd, nr, is_driver_ioctl, (long)dev->device, 956 file_priv->authenticated, retcode); 957 } 958 959 return retcode; 960 } 961 962 drm_local_map_t *drm_getsarea(struct drm_device *dev) 963 { 964 drm_local_map_t *map; 965 966 DRM_LOCK_ASSERT(dev); 967 TAILQ_FOREACH(map, &dev->maplist, link) { 968 if (map->type == _DRM_SHM && (map->flags & _DRM_CONTAINS_LOCK)) 969 return map; 970 } 971 972 return NULL; 973 } 974 975 int 976 drm_add_busid_modesetting(struct drm_device *dev, struct sysctl_ctx_list *ctx, 977 struct sysctl_oid *top) 978 { 979 struct sysctl_oid *oid; 980 981 snprintf(dev->busid_str, sizeof(dev->busid_str), 982 "pci:%04x:%02x:%02x.%d", dev->pci_domain, dev->pci_bus, 983 dev->pci_slot, dev->pci_func); 984 oid = SYSCTL_ADD_STRING(ctx, SYSCTL_CHILDREN(top), OID_AUTO, "busid", 985 CTLFLAG_RD, dev->busid_str, 0, NULL); 986 if (oid == NULL) 987 return (ENOMEM); 988 dev->modesetting = (dev->driver->driver_features & DRIVER_MODESET) != 0; 989 oid = SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(top), OID_AUTO, 990 "modesetting", CTLFLAG_RD, &dev->modesetting, 0, NULL); 991 if (oid == NULL) 992 return (ENOMEM); 993 994 return (0); 995 } 996 997 static int 998 drm_mmap_single(struct cdev *kdev, vm_ooffset_t *offset, vm_size_t size, 999 struct vm_object **obj_res, int nprot) 1000 { 1001 struct drm_device *dev; 1002 1003 dev = drm_get_device_from_kdev(kdev); 1004 if (dev->drm_ttm_bdev != NULL) { 1005 return (ttm_bo_mmap_single(dev->drm_ttm_bdev, offset, size, 1006 obj_res, nprot)); 1007 } else if ((dev->driver->driver_features & DRIVER_GEM) != 0) { 1008 return (drm_gem_mmap_single(dev, offset, size, obj_res, nprot)); 1009 } else { 1010 return (ENODEV); 1011 } 1012 } 1013 1014 #if DRM_LINUX 1015 1016 #include <sys/sysproto.h> 1017 1018 MODULE_DEPEND(DRIVER_NAME, linux, 1, 1, 1); 1019 1020 #define LINUX_IOCTL_DRM_MIN 0x6400 1021 #define LINUX_IOCTL_DRM_MAX 0x64ff 1022 1023 static linux_ioctl_function_t drm_linux_ioctl; 1024 static struct linux_ioctl_handler drm_handler = {drm_linux_ioctl, 1025 LINUX_IOCTL_DRM_MIN, LINUX_IOCTL_DRM_MAX}; 1026 1027 /* The bits for in/out are switched on Linux */ 1028 #define LINUX_IOC_IN IOC_OUT 1029 #define LINUX_IOC_OUT IOC_IN 1030 1031 static int 1032 drm_linux_ioctl(DRM_STRUCTPROC *p, struct linux_ioctl_args* args) 1033 { 1034 int error; 1035 int cmd = args->cmd; 1036 1037 args->cmd &= ~(LINUX_IOC_IN | LINUX_IOC_OUT); 1038 if (cmd & LINUX_IOC_IN) 1039 args->cmd |= IOC_IN; 1040 if (cmd & LINUX_IOC_OUT) 1041 args->cmd |= IOC_OUT; 1042 1043 error = ioctl(p, (struct ioctl_args *)args); 1044 1045 return error; 1046 } 1047 #endif /* DRM_LINUX */ 1048 1049 1050 static int 1051 drm_core_init(void *arg) 1052 { 1053 1054 drm_global_init(); 1055 1056 #if DRM_LINUX 1057 linux_ioctl_register_handler(&drm_handler); 1058 #endif /* DRM_LINUX */ 1059 1060 DRM_INFO("Initialized %s %d.%d.%d %s\n", 1061 CORE_NAME, CORE_MAJOR, CORE_MINOR, CORE_PATCHLEVEL, CORE_DATE); 1062 return 0; 1063 } 1064 1065 static void 1066 drm_core_exit(void *arg) 1067 { 1068 1069 #if DRM_LINUX 1070 linux_ioctl_unregister_handler(&drm_handler); 1071 #endif /* DRM_LINUX */ 1072 1073 drm_global_release(); 1074 } 1075 1076 SYSINIT(drm_register, SI_SUB_KLD, SI_ORDER_MIDDLE, 1077 drm_core_init, NULL); 1078 SYSUNINIT(drm_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE, 1079 drm_core_exit, NULL); 1080 1081 static bool 1082 dmi_found(const struct dmi_system_id *dsi) 1083 { 1084 char *hw_vendor, *hw_prod; 1085 int i, slot; 1086 bool res; 1087 1088 hw_vendor = kern_getenv("smbios.planar.maker"); 1089 hw_prod = kern_getenv("smbios.planar.product"); 1090 res = true; 1091 for (i = 0; i < nitems(dsi->matches); i++) { 1092 slot = dsi->matches[i].slot; 1093 switch (slot) { 1094 case DMI_NONE: 1095 break; 1096 case DMI_SYS_VENDOR: 1097 case DMI_BOARD_VENDOR: 1098 if (hw_vendor != NULL && 1099 !strcmp(hw_vendor, dsi->matches[i].substr)) { 1100 break; 1101 } else { 1102 res = false; 1103 goto out; 1104 } 1105 case DMI_PRODUCT_NAME: 1106 case DMI_BOARD_NAME: 1107 if (hw_prod != NULL && 1108 !strcmp(hw_prod, dsi->matches[i].substr)) { 1109 break; 1110 } else { 1111 res = false; 1112 goto out; 1113 } 1114 default: 1115 res = false; 1116 goto out; 1117 } 1118 } 1119 out: 1120 freeenv(hw_vendor); 1121 freeenv(hw_prod); 1122 1123 return (res); 1124 } 1125 1126 bool 1127 dmi_check_system(const struct dmi_system_id *sysid) 1128 { 1129 const struct dmi_system_id *dsi; 1130 bool res; 1131 1132 for (res = false, dsi = sysid; dsi->matches[0].slot != 0 ; dsi++) { 1133 if (dmi_found(dsi)) { 1134 res = true; 1135 if (dsi->callback != NULL && dsi->callback(dsi)) 1136 break; 1137 } 1138 } 1139 return (res); 1140 } 1141