drm_drv.c revision 280369
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: stable/10/sys/dev/drm2/drm_drv.c 280369 2015-03-23 13:38:33Z kib $"); 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 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 195static 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 207static int drm_msi = 1; /* Enable by default. */ 208TUNABLE_INT("hw.drm.msi", &drm_msi); 209SYSCTL_NODE(_hw, OID_AUTO, drm, CTLFLAG_RW, NULL, "DRM device"); 210SYSCTL_INT(_hw_drm, OID_AUTO, msi, CTLFLAG_RDTUN, &drm_msi, 1, 211 "Enable MSI interrupts for drm devices"); 212 213static struct drm_msi_blacklist_entry drm_msi_blacklist[] = { 214 {0x8086, 0x2772}, /* Intel i945G */ \ 215 {0x8086, 0x27A2}, /* Intel i945GM */ \ 216 {0x8086, 0x27AE}, /* Intel i945GME */ \ 217 {0, 0} 218}; 219 220static int drm_msi_is_blacklisted(struct drm_device *dev, unsigned long flags) 221{ 222 int i = 0; 223 224 if (dev->driver->use_msi != NULL) { 225 int use_msi; 226 227 use_msi = dev->driver->use_msi(dev, flags); 228 229 return (!use_msi); 230 } 231 232 /* TODO: Maybe move this to a callback in i915? */ 233 for (i = 0; drm_msi_blacklist[i].vendor != 0; i++) { 234 if ((drm_msi_blacklist[i].vendor == dev->pci_vendor) && 235 (drm_msi_blacklist[i].device == dev->pci_device)) { 236 return 1; 237 } 238 } 239 240 return 0; 241} 242 243int drm_probe(device_t kdev, drm_pci_id_list_t *idlist) 244{ 245 drm_pci_id_list_t *id_entry; 246 int vendor, device; 247 248 vendor = pci_get_vendor(kdev); 249 device = pci_get_device(kdev); 250 251 if (pci_get_class(kdev) != PCIC_DISPLAY 252 || (pci_get_subclass(kdev) != PCIS_DISPLAY_VGA && 253 pci_get_subclass(kdev) != PCIS_DISPLAY_OTHER)) 254 return ENXIO; 255 256 id_entry = drm_find_description(vendor, device, idlist); 257 if (id_entry != NULL) { 258 if (!device_get_desc(kdev)) { 259 DRM_DEBUG("desc : %s\n", device_get_desc(kdev)); 260 device_set_desc(kdev, id_entry->name); 261 } 262 return 0; 263 } 264 265 return ENXIO; 266} 267 268int drm_attach(device_t kdev, drm_pci_id_list_t *idlist) 269{ 270 struct drm_device *dev; 271 drm_pci_id_list_t *id_entry; 272 int error, msicount; 273 274 dev = device_get_softc(kdev); 275 276 dev->device = kdev; 277 278 dev->pci_domain = pci_get_domain(dev->device); 279 dev->pci_bus = pci_get_bus(dev->device); 280 dev->pci_slot = pci_get_slot(dev->device); 281 dev->pci_func = pci_get_function(dev->device); 282 283 dev->pci_vendor = pci_get_vendor(dev->device); 284 dev->pci_device = pci_get_device(dev->device); 285 dev->pci_subvendor = pci_get_subvendor(dev->device); 286 dev->pci_subdevice = pci_get_subdevice(dev->device); 287 288 id_entry = drm_find_description(dev->pci_vendor, 289 dev->pci_device, idlist); 290 dev->id_entry = id_entry; 291 292 if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ)) { 293 if (drm_msi && 294 !drm_msi_is_blacklisted(dev, dev->id_entry->driver_private)) { 295 msicount = pci_msi_count(dev->device); 296 DRM_DEBUG("MSI count = %d\n", msicount); 297 if (msicount > 1) 298 msicount = 1; 299 300 if (pci_alloc_msi(dev->device, &msicount) == 0) { 301 DRM_INFO("MSI enabled %d message(s)\n", 302 msicount); 303 dev->msi_enabled = 1; 304 dev->irqrid = 1; 305 } 306 } 307 308 dev->irqr = bus_alloc_resource_any(dev->device, SYS_RES_IRQ, 309 &dev->irqrid, RF_SHAREABLE); 310 if (!dev->irqr) { 311 return (ENOENT); 312 } 313 314 dev->irq = (int) rman_get_start(dev->irqr); 315 } 316 317 mtx_init(&dev->dev_lock, "drmdev", NULL, MTX_DEF); 318 mtx_init(&dev->irq_lock, "drmirq", NULL, MTX_DEF); 319 mtx_init(&dev->vbl_lock, "drmvbl", NULL, MTX_DEF); 320 mtx_init(&dev->drw_lock, "drmdrw", NULL, MTX_DEF); 321 mtx_init(&dev->event_lock, "drmev", NULL, MTX_DEF); 322 sx_init(&dev->dev_struct_lock, "drmslk"); 323 324 error = drm_load(dev); 325 if (error) 326 goto error; 327 328 error = drm_create_cdevs(kdev); 329 if (error) 330 goto error; 331 332 return (error); 333error: 334 if (dev->irqr) { 335 bus_release_resource(dev->device, SYS_RES_IRQ, 336 dev->irqrid, dev->irqr); 337 } 338 if (dev->msi_enabled) { 339 pci_release_msi(dev->device); 340 } 341 return (error); 342} 343 344int 345drm_create_cdevs(device_t kdev) 346{ 347 struct drm_device *dev; 348 int error, unit; 349 350 unit = device_get_unit(kdev); 351 dev = device_get_softc(kdev); 352 353 error = make_dev_p(MAKEDEV_WAITOK | MAKEDEV_CHECKNAME, &dev->devnode, 354 &drm_cdevsw, 0, DRM_DEV_UID, DRM_DEV_GID, 355 DRM_DEV_MODE, "dri/card%d", unit); 356 if (error == 0) 357 dev->devnode->si_drv1 = dev; 358 return (error); 359} 360 361int drm_detach(device_t kdev) 362{ 363 struct drm_device *dev; 364 365 dev = device_get_softc(kdev); 366 drm_unload(dev); 367 if (dev->irqr) { 368 bus_release_resource(dev->device, SYS_RES_IRQ, dev->irqrid, 369 dev->irqr); 370 if (dev->msi_enabled) { 371 pci_release_msi(dev->device); 372 DRM_INFO("MSI released\n"); 373 } 374 } 375 return (0); 376} 377 378#ifndef DRM_DEV_NAME 379#define DRM_DEV_NAME "drm" 380#endif 381 382devclass_t drm_devclass; 383 384drm_pci_id_list_t *drm_find_description(int vendor, int device, 385 drm_pci_id_list_t *idlist) 386{ 387 int i = 0; 388 389 for (i = 0; idlist[i].vendor != 0; i++) { 390 if ((idlist[i].vendor == vendor) && 391 ((idlist[i].device == device) || 392 (idlist[i].device == 0))) { 393 return &idlist[i]; 394 } 395 } 396 return NULL; 397} 398 399static int drm_firstopen(struct drm_device *dev) 400{ 401 drm_local_map_t *map; 402 int i; 403 404 DRM_LOCK_ASSERT(dev); 405 406 /* prebuild the SAREA */ 407 i = drm_addmap(dev, 0, SAREA_MAX, _DRM_SHM, 408 _DRM_CONTAINS_LOCK, &map); 409 if (i != 0) 410 return i; 411 412 if (dev->driver->firstopen) 413 dev->driver->firstopen(dev); 414 415 dev->buf_use = 0; 416 417 if (drm_core_check_feature(dev, DRIVER_HAVE_DMA)) { 418 i = drm_dma_setup(dev); 419 if (i != 0) 420 return i; 421 } 422 423 for (i = 0; i < DRM_HASH_SIZE; i++) { 424 dev->magiclist[i].head = NULL; 425 dev->magiclist[i].tail = NULL; 426 } 427 428 dev->lock.lock_queue = 0; 429 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 430 dev->irq_enabled = 0; 431 dev->context_flag = 0; 432 dev->last_context = 0; 433 dev->if_version = 0; 434 435 dev->buf_sigio = NULL; 436 437 DRM_DEBUG("\n"); 438 439 return 0; 440} 441 442static int drm_lastclose(struct drm_device *dev) 443{ 444 drm_magic_entry_t *pt, *next; 445 drm_local_map_t *map, *mapsave; 446 int i; 447 448 DRM_LOCK_ASSERT(dev); 449 450 DRM_DEBUG("\n"); 451 452 if (dev->driver->lastclose != NULL) 453 dev->driver->lastclose(dev); 454 455 if (!drm_core_check_feature(dev, DRIVER_MODESET) && dev->irq_enabled) 456 drm_irq_uninstall(dev); 457 458 if (dev->unique) { 459 free(dev->unique, DRM_MEM_DRIVER); 460 dev->unique = NULL; 461 dev->unique_len = 0; 462 } 463 /* Clear pid list */ 464 for (i = 0; i < DRM_HASH_SIZE; i++) { 465 for (pt = dev->magiclist[i].head; pt; pt = next) { 466 next = pt->next; 467 free(pt, DRM_MEM_MAGIC); 468 } 469 dev->magiclist[i].head = dev->magiclist[i].tail = NULL; 470 } 471 472 DRM_UNLOCK(dev); 473 drm_drawable_free_all(dev); 474 DRM_LOCK(dev); 475 476 /* Clear AGP information */ 477 if (dev->agp) { 478 drm_agp_mem_t *entry; 479 drm_agp_mem_t *nexte; 480 481 /* Remove AGP resources, but leave dev->agp intact until 482 * drm_unload is called. 483 */ 484 for (entry = dev->agp->memory; entry; entry = nexte) { 485 nexte = entry->next; 486 if (entry->bound) 487 drm_agp_unbind_memory(entry->handle); 488 drm_agp_free_memory(entry->handle); 489 free(entry, DRM_MEM_AGPLISTS); 490 } 491 dev->agp->memory = NULL; 492 493 if (dev->agp->acquired) 494 drm_agp_release(dev); 495 496 dev->agp->acquired = 0; 497 dev->agp->enabled = 0; 498 } 499 if (dev->sg != NULL) { 500 drm_sg_cleanup(dev->sg); 501 dev->sg = NULL; 502 } 503 504 TAILQ_FOREACH_SAFE(map, &dev->maplist, link, mapsave) { 505 if (!(map->flags & _DRM_DRIVER)) 506 drm_rmmap(dev, map); 507 } 508 509 drm_dma_takedown(dev); 510 if (dev->lock.hw_lock) { 511 dev->lock.hw_lock = NULL; /* SHM removed */ 512 dev->lock.file_priv = NULL; 513 DRM_WAKEUP_INT((void *)&dev->lock.lock_queue); 514 } 515 516 return 0; 517} 518 519static int drm_load(struct drm_device *dev) 520{ 521 int i, retcode; 522 523 DRM_DEBUG("\n"); 524 525 TAILQ_INIT(&dev->maplist); 526 dev->map_unrhdr = new_unrhdr(1, ((1 << DRM_MAP_HANDLE_BITS) - 1), NULL); 527 if (dev->map_unrhdr == NULL) { 528 DRM_ERROR("Couldn't allocate map number allocator\n"); 529 return EINVAL; 530 } 531 532 533 drm_mem_init(); 534 drm_sysctl_init(dev); 535 TAILQ_INIT(&dev->files); 536 537 dev->counters = 6; 538 dev->types[0] = _DRM_STAT_LOCK; 539 dev->types[1] = _DRM_STAT_OPENS; 540 dev->types[2] = _DRM_STAT_CLOSES; 541 dev->types[3] = _DRM_STAT_IOCTLS; 542 dev->types[4] = _DRM_STAT_LOCKS; 543 dev->types[5] = _DRM_STAT_UNLOCKS; 544 545 for (i = 0; i < DRM_ARRAY_SIZE(dev->counts); i++) 546 atomic_set(&dev->counts[i], 0); 547 548 INIT_LIST_HEAD(&dev->vblank_event_list); 549 550 if (drm_core_has_AGP(dev)) { 551 if (drm_device_is_agp(dev)) 552 dev->agp = drm_agp_init(); 553 if (drm_core_check_feature(dev, DRIVER_REQUIRE_AGP) && 554 dev->agp == NULL) { 555 DRM_ERROR("Card isn't AGP, or couldn't initialize " 556 "AGP.\n"); 557 retcode = ENOMEM; 558 goto error; 559 } 560 if (dev->agp != NULL && dev->agp->info.ai_aperture_base != 0) { 561 if (drm_mtrr_add(dev->agp->info.ai_aperture_base, 562 dev->agp->info.ai_aperture_size, DRM_MTRR_WC) == 0) 563 dev->agp->mtrr = 1; 564 } 565 } 566 567 retcode = drm_ctxbitmap_init(dev); 568 if (retcode != 0) { 569 DRM_ERROR("Cannot allocate memory for context bitmap.\n"); 570 goto error; 571 } 572 573 dev->drw_unrhdr = new_unrhdr(1, INT_MAX, NULL); 574 if (dev->drw_unrhdr == NULL) { 575 DRM_ERROR("Couldn't allocate drawable number allocator\n"); 576 retcode = ENOMEM; 577 goto error; 578 } 579 580 if (dev->driver->driver_features & DRIVER_GEM) { 581 retcode = drm_gem_init(dev); 582 if (retcode != 0) { 583 DRM_ERROR("Cannot initialize graphics execution " 584 "manager (GEM)\n"); 585 goto error1; 586 } 587 } 588 589 if (dev->driver->load != NULL) { 590 DRM_LOCK(dev); 591 /* Shared code returns -errno. */ 592 retcode = -dev->driver->load(dev, 593 dev->id_entry->driver_private); 594 if (pci_enable_busmaster(dev->device)) 595 DRM_ERROR("Request to enable bus-master failed.\n"); 596 DRM_UNLOCK(dev); 597 if (retcode != 0) 598 goto error1; 599 } 600 601 DRM_INFO("Initialized %s %d.%d.%d %s\n", 602 dev->driver->name, 603 dev->driver->major, 604 dev->driver->minor, 605 dev->driver->patchlevel, 606 dev->driver->date); 607 608 return 0; 609 610error1: 611 delete_unrhdr(dev->drw_unrhdr); 612 drm_gem_destroy(dev); 613error: 614 drm_ctxbitmap_cleanup(dev); 615 drm_sysctl_cleanup(dev); 616 DRM_LOCK(dev); 617 drm_lastclose(dev); 618 DRM_UNLOCK(dev); 619 if (dev->devnode != NULL) 620 destroy_dev(dev->devnode); 621 622 mtx_destroy(&dev->drw_lock); 623 mtx_destroy(&dev->vbl_lock); 624 mtx_destroy(&dev->irq_lock); 625 mtx_destroy(&dev->dev_lock); 626 mtx_destroy(&dev->event_lock); 627 sx_destroy(&dev->dev_struct_lock); 628 629 return retcode; 630} 631 632static void drm_unload(struct drm_device *dev) 633{ 634 int i; 635 636 DRM_DEBUG("\n"); 637 638 drm_sysctl_cleanup(dev); 639 if (dev->devnode != NULL) 640 destroy_dev(dev->devnode); 641 642 drm_ctxbitmap_cleanup(dev); 643 644 if (dev->driver->driver_features & DRIVER_GEM) 645 drm_gem_destroy(dev); 646 647 if (dev->agp && dev->agp->mtrr) { 648 int __unused retcode; 649 650 retcode = drm_mtrr_del(0, dev->agp->info.ai_aperture_base, 651 dev->agp->info.ai_aperture_size, DRM_MTRR_WC); 652 DRM_DEBUG("mtrr_del = %d", retcode); 653 } 654 655 drm_vblank_cleanup(dev); 656 657 DRM_LOCK(dev); 658 drm_lastclose(dev); 659 DRM_UNLOCK(dev); 660 661 /* Clean up PCI resources allocated by drm_bufs.c. We're not really 662 * worried about resource consumption while the DRM is inactive (between 663 * lastclose and firstopen or unload) because these aren't actually 664 * taking up KVA, just keeping the PCI resource allocated. 665 */ 666 for (i = 0; i < DRM_MAX_PCI_RESOURCE; i++) { 667 if (dev->pcir[i] == NULL) 668 continue; 669 bus_release_resource(dev->device, SYS_RES_MEMORY, 670 dev->pcirid[i], dev->pcir[i]); 671 dev->pcir[i] = NULL; 672 } 673 674 if (dev->agp) { 675 free(dev->agp, DRM_MEM_AGPLISTS); 676 dev->agp = NULL; 677 } 678 679 if (dev->driver->unload != NULL) { 680 DRM_LOCK(dev); 681 dev->driver->unload(dev); 682 DRM_UNLOCK(dev); 683 } 684 685 delete_unrhdr(dev->drw_unrhdr); 686 delete_unrhdr(dev->map_unrhdr); 687 688 drm_mem_uninit(); 689 690 if (pci_disable_busmaster(dev->device)) 691 DRM_ERROR("Request to disable bus-master failed.\n"); 692 693 mtx_destroy(&dev->drw_lock); 694 mtx_destroy(&dev->vbl_lock); 695 mtx_destroy(&dev->irq_lock); 696 mtx_destroy(&dev->dev_lock); 697 mtx_destroy(&dev->event_lock); 698 sx_destroy(&dev->dev_struct_lock); 699} 700 701int drm_version(struct drm_device *dev, void *data, struct drm_file *file_priv) 702{ 703 struct drm_version *version = data; 704 int len; 705 706#define DRM_COPY( name, value ) \ 707 len = strlen( value ); \ 708 if ( len > name##_len ) len = name##_len; \ 709 name##_len = strlen( value ); \ 710 if ( len && name ) { \ 711 if ( DRM_COPY_TO_USER( name, value, len ) ) \ 712 return EFAULT; \ 713 } 714 715 version->version_major = dev->driver->major; 716 version->version_minor = dev->driver->minor; 717 version->version_patchlevel = dev->driver->patchlevel; 718 719 DRM_COPY(version->name, dev->driver->name); 720 DRM_COPY(version->date, dev->driver->date); 721 DRM_COPY(version->desc, dev->driver->desc); 722 723 return 0; 724} 725 726int 727drm_open(struct cdev *kdev, int flags, int fmt, DRM_STRUCTPROC *p) 728{ 729 struct drm_device *dev; 730 int retcode; 731 732 dev = kdev->si_drv1; 733 if (dev == NULL) 734 return (ENXIO); 735 736 DRM_DEBUG("open_count = %d\n", dev->open_count); 737 738 retcode = drm_open_helper(kdev, flags, fmt, p, dev); 739 740 if (retcode == 0) { 741 atomic_inc(&dev->counts[_DRM_STAT_OPENS]); 742 DRM_LOCK(dev); 743 mtx_lock(&Giant); 744 device_busy(dev->device); 745 mtx_unlock(&Giant); 746 if (!dev->open_count++) 747 retcode = drm_firstopen(dev); 748 DRM_UNLOCK(dev); 749 } 750 751 return (retcode); 752} 753 754void drm_close(void *data) 755{ 756 struct drm_file *file_priv = data; 757 struct drm_device *dev = file_priv->dev; 758 int retcode = 0; 759 760 DRM_DEBUG("open_count = %d\n", dev->open_count); 761 762 DRM_LOCK(dev); 763 764 if (dev->driver->preclose != NULL) 765 dev->driver->preclose(dev, file_priv); 766 767 /* ======================================================== 768 * Begin inline drm_release 769 */ 770 771 DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n", 772 DRM_CURRENTPID, (long)dev->device, dev->open_count); 773 774 if (dev->driver->driver_features & DRIVER_GEM) 775 drm_gem_release(dev, file_priv); 776 777 if (dev->lock.hw_lock && _DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) 778 && dev->lock.file_priv == file_priv) { 779 DRM_DEBUG("Process %d dead, freeing lock for context %d\n", 780 DRM_CURRENTPID, 781 _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)); 782 if (dev->driver->reclaim_buffers_locked != NULL) 783 dev->driver->reclaim_buffers_locked(dev, file_priv); 784 785 drm_lock_free(&dev->lock, 786 _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)); 787 788 /* FIXME: may require heavy-handed reset of 789 hardware at this point, possibly 790 processed via a callback to the X 791 server. */ 792 } else if (dev->driver->reclaim_buffers_locked != NULL && 793 dev->lock.hw_lock != NULL) { 794 /* The lock is required to reclaim buffers */ 795 for (;;) { 796 if (!dev->lock.hw_lock) { 797 /* Device has been unregistered */ 798 retcode = EINTR; 799 break; 800 } 801 if (drm_lock_take(&dev->lock, DRM_KERNEL_CONTEXT)) { 802 dev->lock.file_priv = file_priv; 803 dev->lock.lock_time = jiffies; 804 atomic_inc(&dev->counts[_DRM_STAT_LOCKS]); 805 break; /* Got lock */ 806 } 807 /* Contention */ 808 retcode = DRM_LOCK_SLEEP(dev, &dev->lock.lock_queue, 809 PCATCH, "drmlk2", 0); 810 if (retcode) 811 break; 812 } 813 if (retcode == 0) { 814 dev->driver->reclaim_buffers_locked(dev, file_priv); 815 drm_lock_free(&dev->lock, DRM_KERNEL_CONTEXT); 816 } 817 } 818 819 if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) && 820 !dev->driver->reclaim_buffers_locked) 821 drm_reclaim_buffers(dev, file_priv); 822 823 funsetown(&dev->buf_sigio); 824 seldrain(&file_priv->event_poll); 825 826 if (dev->driver->postclose != NULL) 827 dev->driver->postclose(dev, file_priv); 828 TAILQ_REMOVE(&dev->files, file_priv, link); 829 free(file_priv, DRM_MEM_FILES); 830 831 /* ======================================================== 832 * End inline drm_release 833 */ 834 835 atomic_inc(&dev->counts[_DRM_STAT_CLOSES]); 836 mtx_lock(&Giant); 837 device_unbusy(dev->device); 838 mtx_unlock(&Giant); 839 if (--dev->open_count == 0) { 840 retcode = drm_lastclose(dev); 841 } 842 843 DRM_UNLOCK(dev); 844} 845 846extern drm_ioctl_desc_t drm_compat_ioctls[]; 847 848/* drm_ioctl is called whenever a process performs an ioctl on /dev/drm. 849 */ 850int drm_ioctl(struct cdev *kdev, u_long cmd, caddr_t data, int flags, 851 DRM_STRUCTPROC *p) 852{ 853 struct drm_device *dev = drm_get_device_from_kdev(kdev); 854 int retcode = 0; 855 drm_ioctl_desc_t *ioctl; 856 int (*func)(struct drm_device *dev, void *data, struct drm_file *file_priv); 857 int nr = DRM_IOCTL_NR(cmd); 858 int is_driver_ioctl = 0; 859 struct drm_file *file_priv; 860 861 retcode = devfs_get_cdevpriv((void **)&file_priv); 862 if (retcode != 0) { 863 DRM_ERROR("can't find authenticator\n"); 864 return EINVAL; 865 } 866 867 atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]); 868 ++file_priv->ioctl_count; 869 870 DRM_DEBUG("pid=%d, cmd=0x%02lx, nr=0x%02x, dev 0x%lx, auth=%d\n", 871 DRM_CURRENTPID, cmd, nr, (long)dev->device, 872 file_priv->authenticated); 873 874 switch (cmd) { 875 case FIONBIO: 876 case FIOASYNC: 877 return 0; 878 879 case FIOSETOWN: 880 return fsetown(*(int *)data, &dev->buf_sigio); 881 882 case FIOGETOWN: 883 *(int *) data = fgetown(&dev->buf_sigio); 884 return 0; 885 } 886 887 if (IOCGROUP(cmd) != DRM_IOCTL_BASE) { 888 DRM_DEBUG("Bad ioctl group 0x%x\n", (int)IOCGROUP(cmd)); 889 return EINVAL; 890 } 891 892#ifdef COMPAT_FREEBSD32 893 /* 894 * Called whenever a 32-bit process running under a 64-bit 895 * kernel performs an ioctl on /dev/drm. 896 */ 897 if (SV_CURPROC_FLAG(SV_ILP32) && drm_compat_ioctls[nr].func != NULL) 898 /* 899 * Assume that ioctls without an explicit compat 900 * routine will just work. This may not always be a 901 * good assumption, but it's better than always 902 * failing. 903 */ 904 ioctl = &drm_compat_ioctls[nr]; 905 else 906#endif 907 ioctl = &drm_ioctls[nr]; 908 /* It's not a core DRM ioctl, try driver-specific. */ 909 if (ioctl->func == NULL && nr >= DRM_COMMAND_BASE) { 910 /* The array entries begin at DRM_COMMAND_BASE ioctl nr */ 911 nr -= DRM_COMMAND_BASE; 912 if (nr > dev->driver->max_ioctl) { 913 DRM_DEBUG("Bad driver ioctl number, 0x%x (of 0x%x)\n", 914 nr, dev->driver->max_ioctl); 915 return EINVAL; 916 } 917#ifdef COMPAT_FREEBSD32 918 if (SV_CURPROC_FLAG(SV_ILP32) && 919 nr < *dev->driver->compat_ioctls_nr && 920 dev->driver->compat_ioctls[nr].func != NULL) 921 ioctl = &dev->driver->compat_ioctls[nr]; 922 else 923#endif 924 ioctl = &dev->driver->ioctls[nr]; 925 is_driver_ioctl = 1; 926 } 927 func = ioctl->func; 928 929 if (func == NULL) { 930 DRM_DEBUG("no function\n"); 931 return EINVAL; 932 } 933 934 if (((ioctl->flags & DRM_ROOT_ONLY) && !DRM_SUSER(p)) || 935 ((ioctl->flags & DRM_AUTH) && !file_priv->authenticated) || 936 ((ioctl->flags & DRM_MASTER) && !file_priv->master)) 937 return EACCES; 938 939 if (is_driver_ioctl) { 940 if ((ioctl->flags & DRM_UNLOCKED) == 0) 941 DRM_LOCK(dev); 942 /* shared code returns -errno */ 943 retcode = -func(dev, data, file_priv); 944 if ((ioctl->flags & DRM_UNLOCKED) == 0) 945 DRM_UNLOCK(dev); 946 } else { 947 retcode = func(dev, data, file_priv); 948 } 949 950 if (retcode != 0) 951 DRM_DEBUG(" returning %d\n", retcode); 952 if (retcode != 0 && 953 (drm_debug_flag & DRM_DEBUGBITS_FAILED_IOCTL) != 0) { 954 printf( 955"pid %d, cmd 0x%02lx, nr 0x%02x/%1d, dev 0x%lx, auth %d, res %d\n", 956 DRM_CURRENTPID, cmd, nr, is_driver_ioctl, (long)dev->device, 957 file_priv->authenticated, retcode); 958 } 959 960 return retcode; 961} 962 963drm_local_map_t *drm_getsarea(struct drm_device *dev) 964{ 965 drm_local_map_t *map; 966 967 DRM_LOCK_ASSERT(dev); 968 TAILQ_FOREACH(map, &dev->maplist, link) { 969 if (map->type == _DRM_SHM && (map->flags & _DRM_CONTAINS_LOCK)) 970 return map; 971 } 972 973 return NULL; 974} 975 976int 977drm_add_busid_modesetting(struct drm_device *dev, struct sysctl_ctx_list *ctx, 978 struct sysctl_oid *top) 979{ 980 struct sysctl_oid *oid; 981 982 snprintf(dev->busid_str, sizeof(dev->busid_str), 983 "pci:%04x:%02x:%02x.%d", dev->pci_domain, dev->pci_bus, 984 dev->pci_slot, dev->pci_func); 985 oid = SYSCTL_ADD_STRING(ctx, SYSCTL_CHILDREN(top), OID_AUTO, "busid", 986 CTLFLAG_RD, dev->busid_str, 0, NULL); 987 if (oid == NULL) 988 return (ENOMEM); 989 dev->modesetting = (dev->driver->driver_features & DRIVER_MODESET) != 0; 990 oid = SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(top), OID_AUTO, 991 "modesetting", CTLFLAG_RD, &dev->modesetting, 0, NULL); 992 if (oid == NULL) 993 return (ENOMEM); 994 995 return (0); 996} 997 998static int 999drm_mmap_single(struct cdev *kdev, vm_ooffset_t *offset, vm_size_t size, 1000 struct vm_object **obj_res, int nprot) 1001{ 1002 struct drm_device *dev; 1003 1004 dev = drm_get_device_from_kdev(kdev); 1005 if (dev->drm_ttm_bdev != NULL) { 1006 return (ttm_bo_mmap_single(dev->drm_ttm_bdev, offset, size, 1007 obj_res, nprot)); 1008 } else if ((dev->driver->driver_features & DRIVER_GEM) != 0) { 1009 return (drm_gem_mmap_single(dev, offset, size, obj_res, nprot)); 1010 } else { 1011 return (ENODEV); 1012 } 1013} 1014 1015#if DRM_LINUX 1016 1017#include <sys/sysproto.h> 1018 1019MODULE_DEPEND(DRIVER_NAME, linux, 1, 1, 1); 1020 1021#define LINUX_IOCTL_DRM_MIN 0x6400 1022#define LINUX_IOCTL_DRM_MAX 0x64ff 1023 1024static linux_ioctl_function_t drm_linux_ioctl; 1025static struct linux_ioctl_handler drm_handler = {drm_linux_ioctl, 1026 LINUX_IOCTL_DRM_MIN, LINUX_IOCTL_DRM_MAX}; 1027 1028/* The bits for in/out are switched on Linux */ 1029#define LINUX_IOC_IN IOC_OUT 1030#define LINUX_IOC_OUT IOC_IN 1031 1032static int 1033drm_linux_ioctl(DRM_STRUCTPROC *p, struct linux_ioctl_args* args) 1034{ 1035 int error; 1036 int cmd = args->cmd; 1037 1038 args->cmd &= ~(LINUX_IOC_IN | LINUX_IOC_OUT); 1039 if (cmd & LINUX_IOC_IN) 1040 args->cmd |= IOC_IN; 1041 if (cmd & LINUX_IOC_OUT) 1042 args->cmd |= IOC_OUT; 1043 1044 error = ioctl(p, (struct ioctl_args *)args); 1045 1046 return error; 1047} 1048#endif /* DRM_LINUX */ 1049 1050 1051static int 1052drm_core_init(void *arg) 1053{ 1054 1055 drm_global_init(); 1056 1057#if DRM_LINUX 1058 linux_ioctl_register_handler(&drm_handler); 1059#endif /* DRM_LINUX */ 1060 1061 DRM_INFO("Initialized %s %d.%d.%d %s\n", 1062 CORE_NAME, CORE_MAJOR, CORE_MINOR, CORE_PATCHLEVEL, CORE_DATE); 1063 return 0; 1064} 1065 1066static void 1067drm_core_exit(void *arg) 1068{ 1069 1070#if DRM_LINUX 1071 linux_ioctl_unregister_handler(&drm_handler); 1072#endif /* DRM_LINUX */ 1073 1074 drm_global_release(); 1075} 1076 1077SYSINIT(drm_register, SI_SUB_KLD, SI_ORDER_MIDDLE, 1078 drm_core_init, NULL); 1079SYSUNINIT(drm_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE, 1080 drm_core_exit, NULL); 1081 1082static bool 1083dmi_found(const struct dmi_system_id *dsi) 1084{ 1085 char *hw_vendor, *hw_prod; 1086 int i, slot; 1087 bool res; 1088 1089 hw_vendor = getenv("smbios.planar.maker"); 1090 hw_prod = getenv("smbios.planar.product"); 1091 res = true; 1092 for (i = 0; i < nitems(dsi->matches); i++) { 1093 slot = dsi->matches[i].slot; 1094 switch (slot) { 1095 case DMI_NONE: 1096 break; 1097 case DMI_SYS_VENDOR: 1098 case DMI_BOARD_VENDOR: 1099 if (hw_vendor != NULL && 1100 !strcmp(hw_vendor, dsi->matches[i].substr)) { 1101 break; 1102 } else { 1103 res = false; 1104 goto out; 1105 } 1106 case DMI_PRODUCT_NAME: 1107 case DMI_BOARD_NAME: 1108 if (hw_prod != NULL && 1109 !strcmp(hw_prod, dsi->matches[i].substr)) { 1110 break; 1111 } else { 1112 res = false; 1113 goto out; 1114 } 1115 default: 1116 res = false; 1117 goto out; 1118 } 1119 } 1120out: 1121 freeenv(hw_vendor); 1122 freeenv(hw_prod); 1123 1124 return (res); 1125} 1126 1127bool 1128dmi_check_system(const struct dmi_system_id *sysid) 1129{ 1130 const struct dmi_system_id *dsi; 1131 bool res; 1132 1133 for (res = false, dsi = sysid; dsi->matches[0].slot != 0 ; dsi++) { 1134 if (dmi_found(dsi)) { 1135 res = true; 1136 if (dsi->callback != NULL && dsi->callback(dsi)) 1137 break; 1138 } 1139 } 1140 return (res); 1141} 1142