1 /* 2 * Copyright (c) 2006-2008 Intel Corporation 3 * Copyright (c) 2007 Dave Airlie <airlied@linux.ie> 4 * Copyright (c) 2008 Red Hat Inc. 5 * 6 * DRM core CRTC related functions 7 * 8 * Permission to use, copy, modify, distribute, and sell this software and its 9 * documentation for any purpose is hereby granted without fee, provided that 10 * the above copyright notice appear in all copies and that both that copyright 11 * notice and this permission notice appear in supporting documentation, and 12 * that the name of the copyright holders not be used in advertising or 13 * publicity pertaining to distribution of the software without specific, 14 * written prior permission. The copyright holders make no representations 15 * about the suitability of this software for any purpose. It is provided "as 16 * is" without express or implied warranty. 17 * 18 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, 19 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO 20 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR 21 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, 22 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 23 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 24 * OF THIS SOFTWARE. 25 * 26 * Authors: 27 * Keith Packard 28 * Eric Anholt <eric@anholt.net> 29 * Dave Airlie <airlied@linux.ie> 30 * Jesse Barnes <jesse.barnes@intel.com> 31 */ 32 33 #include <linux/err.h> 34 #include <linux/list.h> 35 #include <linux/export.h> 36 #include <linux/kernel.h> 37 #include <drm/drmP.h> 38 #include <drm/drm_crtc.h> 39 #include <drm/drm_edid.h> 40 #include <uapi_drm/drm_fourcc.h> 41 42 /* Avoid boilerplate. I'm tired of typing. */ 43 #define DRM_ENUM_NAME_FN(fnname, list) \ 44 char *fnname(int val) \ 45 { \ 46 int i; \ 47 for (i = 0; i < ARRAY_SIZE(list); i++) { \ 48 if (list[i].type == val) \ 49 return list[i].name; \ 50 } \ 51 return "(unknown)"; \ 52 } 53 54 /* 55 * Global properties 56 */ 57 static struct drm_prop_enum_list drm_dpms_enum_list[] = 58 { { DRM_MODE_DPMS_ON, "On" }, 59 { DRM_MODE_DPMS_STANDBY, "Standby" }, 60 { DRM_MODE_DPMS_SUSPEND, "Suspend" }, 61 { DRM_MODE_DPMS_OFF, "Off" } 62 }; 63 64 DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) 65 66 /* 67 * Optional properties 68 */ 69 static struct drm_prop_enum_list drm_scaling_mode_enum_list[] = 70 { 71 { DRM_MODE_SCALE_NONE, "None" }, 72 { DRM_MODE_SCALE_FULLSCREEN, "Full" }, 73 { DRM_MODE_SCALE_CENTER, "Center" }, 74 { DRM_MODE_SCALE_ASPECT, "Full aspect" }, 75 }; 76 77 static struct drm_prop_enum_list drm_dithering_mode_enum_list[] = 78 { 79 { DRM_MODE_DITHERING_OFF, "Off" }, 80 { DRM_MODE_DITHERING_ON, "On" }, 81 { DRM_MODE_DITHERING_AUTO, "Automatic" }, 82 }; 83 84 /* 85 * Non-global properties, but "required" for certain connectors. 86 */ 87 static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = 88 { 89 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ 90 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ 91 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ 92 }; 93 94 DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) 95 96 static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = 97 { 98 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ 99 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ 100 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ 101 }; 102 103 DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, 104 drm_dvi_i_subconnector_enum_list) 105 106 static struct drm_prop_enum_list drm_tv_select_enum_list[] = 107 { 108 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ 109 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ 110 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ 111 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ 112 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ 113 }; 114 115 DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) 116 117 static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = 118 { 119 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ 120 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ 121 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ 122 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ 123 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ 124 }; 125 126 DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, 127 drm_tv_subconnector_enum_list) 128 129 static struct drm_prop_enum_list drm_dirty_info_enum_list[] = { 130 { DRM_MODE_DIRTY_OFF, "Off" }, 131 { DRM_MODE_DIRTY_ON, "On" }, 132 { DRM_MODE_DIRTY_ANNOTATE, "Annotate" }, 133 }; 134 135 struct drm_conn_prop_enum_list { 136 int type; 137 char *name; 138 int count; 139 }; 140 141 /* 142 * Connector and encoder types. 143 */ 144 static struct drm_conn_prop_enum_list drm_connector_enum_list[] = 145 { { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 }, 146 { DRM_MODE_CONNECTOR_VGA, "VGA", 0 }, 147 { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 }, 148 { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 }, 149 { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 }, 150 { DRM_MODE_CONNECTOR_Composite, "Composite", 0 }, 151 { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 }, 152 { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 }, 153 { DRM_MODE_CONNECTOR_Component, "Component", 0 }, 154 { DRM_MODE_CONNECTOR_9PinDIN, "DIN", 0 }, 155 { DRM_MODE_CONNECTOR_DisplayPort, "DP", 0 }, 156 { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A", 0 }, 157 { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B", 0 }, 158 { DRM_MODE_CONNECTOR_TV, "TV", 0 }, 159 { DRM_MODE_CONNECTOR_eDP, "eDP", 0 }, 160 { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual", 0}, 161 }; 162 163 static struct drm_prop_enum_list drm_encoder_enum_list[] = 164 { { DRM_MODE_ENCODER_NONE, "None" }, 165 { DRM_MODE_ENCODER_DAC, "DAC" }, 166 { DRM_MODE_ENCODER_TMDS, "TMDS" }, 167 { DRM_MODE_ENCODER_LVDS, "LVDS" }, 168 { DRM_MODE_ENCODER_TVDAC, "TV" }, 169 { DRM_MODE_ENCODER_VIRTUAL, "Virtual" }, 170 }; 171 172 char *drm_get_encoder_name(struct drm_encoder *encoder) 173 { 174 static char buf[32]; 175 176 ksnprintf(buf, 32, "%s-%d", 177 drm_encoder_enum_list[encoder->encoder_type].name, 178 encoder->base.id); 179 return buf; 180 } 181 EXPORT_SYMBOL(drm_get_encoder_name); 182 183 char *drm_get_connector_name(struct drm_connector *connector) 184 { 185 static char buf[32]; 186 187 ksnprintf(buf, 32, "%s-%d", 188 drm_connector_enum_list[connector->connector_type].name, 189 connector->connector_type_id); 190 return buf; 191 } 192 EXPORT_SYMBOL(drm_get_connector_name); 193 194 char *drm_get_connector_status_name(enum drm_connector_status status) 195 { 196 if (status == connector_status_connected) 197 return "connected"; 198 else if (status == connector_status_disconnected) 199 return "disconnected"; 200 else 201 return "unknown"; 202 } 203 204 /** 205 * drm_mode_object_get - allocate a new identifier 206 * @dev: DRM device 207 * @ptr: object pointer, used to generate unique ID 208 * @type: object type 209 * 210 * LOCKING: 211 * 212 * Create a unique identifier based on @ptr in @dev's identifier space. Used 213 * for tracking modes, CRTCs and connectors. 214 * 215 * RETURNS: 216 * New unique (relative to other objects in @dev) integer identifier for the 217 * object. 218 */ 219 static int drm_mode_object_get(struct drm_device *dev, 220 struct drm_mode_object *obj, uint32_t obj_type) 221 { 222 int new_id = 0; 223 int ret; 224 225 again: 226 if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) { 227 DRM_ERROR("Ran out memory getting a mode number\n"); 228 return -ENOMEM; 229 } 230 231 lockmgr(&dev->mode_config.idr_mutex, LK_EXCLUSIVE); 232 ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id); 233 lockmgr(&dev->mode_config.idr_mutex, LK_RELEASE); 234 if (ret == -EAGAIN) 235 goto again; 236 else if (ret) 237 return ret; 238 239 obj->id = new_id; 240 obj->type = obj_type; 241 return 0; 242 } 243 244 /** 245 * drm_mode_object_put - free an identifer 246 * @dev: DRM device 247 * @id: ID to free 248 * 249 * LOCKING: 250 * Caller must hold DRM mode_config lock. 251 * 252 * Free @id from @dev's unique identifier pool. 253 */ 254 static void drm_mode_object_put(struct drm_device *dev, 255 struct drm_mode_object *object) 256 { 257 lockmgr(&dev->mode_config.idr_mutex, LK_EXCLUSIVE); 258 idr_remove(&dev->mode_config.crtc_idr, object->id); 259 lockmgr(&dev->mode_config.idr_mutex, LK_RELEASE); 260 } 261 262 struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, 263 uint32_t id, uint32_t type) 264 { 265 struct drm_mode_object *obj = NULL; 266 267 lockmgr(&dev->mode_config.idr_mutex, LK_EXCLUSIVE); 268 obj = idr_find(&dev->mode_config.crtc_idr, id); 269 if (!obj || (obj->type != type) || (obj->id != id)) 270 obj = NULL; 271 lockmgr(&dev->mode_config.idr_mutex, LK_RELEASE); 272 273 return obj; 274 } 275 EXPORT_SYMBOL(drm_mode_object_find); 276 277 /** 278 * drm_framebuffer_init - initialize a framebuffer 279 * @dev: DRM device 280 * 281 * LOCKING: 282 * Caller must hold mode config lock. 283 * 284 * Allocates an ID for the framebuffer's parent mode object, sets its mode 285 * functions & device file and adds it to the master fd list. 286 * 287 * RETURNS: 288 * Zero on success, error code on failure. 289 */ 290 int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, 291 const struct drm_framebuffer_funcs *funcs) 292 { 293 int ret; 294 295 kref_init(&fb->refcount); 296 297 ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB); 298 if (ret) 299 return ret; 300 301 fb->dev = dev; 302 fb->funcs = funcs; 303 dev->mode_config.num_fb++; 304 list_add(&fb->head, &dev->mode_config.fb_list); 305 306 return 0; 307 } 308 EXPORT_SYMBOL(drm_framebuffer_init); 309 310 static void drm_framebuffer_free(struct kref *kref) 311 { 312 struct drm_framebuffer *fb = 313 container_of(kref, struct drm_framebuffer, refcount); 314 fb->funcs->destroy(fb); 315 } 316 317 /** 318 * drm_framebuffer_unreference - unref a framebuffer 319 * 320 * LOCKING: 321 * Caller must hold mode config lock. 322 */ 323 void drm_framebuffer_unreference(struct drm_framebuffer *fb) 324 { 325 struct drm_device *dev = fb->dev; 326 DRM_DEBUG("FB ID: %d\n", fb->base.id); 327 WARN_ON(!lockstatus(&dev->mode_config.mutex, curthread)); 328 kref_put(&fb->refcount, drm_framebuffer_free); 329 } 330 EXPORT_SYMBOL(drm_framebuffer_unreference); 331 332 /** 333 * drm_framebuffer_reference - incr the fb refcnt 334 */ 335 void drm_framebuffer_reference(struct drm_framebuffer *fb) 336 { 337 DRM_DEBUG("FB ID: %d\n", fb->base.id); 338 kref_get(&fb->refcount); 339 } 340 EXPORT_SYMBOL(drm_framebuffer_reference); 341 342 /** 343 * drm_framebuffer_cleanup - remove a framebuffer object 344 * @fb: framebuffer to remove 345 * 346 * LOCKING: 347 * Caller must hold mode config lock. 348 * 349 * Scans all the CRTCs in @dev's mode_config. If they're using @fb, removes 350 * it, setting it to NULL. 351 */ 352 void drm_framebuffer_cleanup(struct drm_framebuffer *fb) 353 { 354 struct drm_device *dev = fb->dev; 355 /* 356 * This could be moved to drm_framebuffer_remove(), but for 357 * debugging is nice to keep around the list of fb's that are 358 * no longer associated w/ a drm_file but are not unreferenced 359 * yet. (i915 and omapdrm have debugfs files which will show 360 * this.) 361 */ 362 drm_mode_object_put(dev, &fb->base); 363 list_del(&fb->head); 364 dev->mode_config.num_fb--; 365 } 366 EXPORT_SYMBOL(drm_framebuffer_cleanup); 367 368 /** 369 * drm_framebuffer_remove - remove and unreference a framebuffer object 370 * @fb: framebuffer to remove 371 * 372 * LOCKING: 373 * Caller must hold mode config lock. 374 * 375 * Scans all the CRTCs and planes in @dev's mode_config. If they're 376 * using @fb, removes it, setting it to NULL. 377 */ 378 void drm_framebuffer_remove(struct drm_framebuffer *fb) 379 { 380 struct drm_device *dev = fb->dev; 381 struct drm_crtc *crtc; 382 struct drm_plane *plane; 383 struct drm_mode_set set; 384 int ret; 385 386 /* remove from any CRTC */ 387 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 388 if (crtc->fb == fb) { 389 /* should turn off the crtc */ 390 memset(&set, 0, sizeof(struct drm_mode_set)); 391 set.crtc = crtc; 392 set.fb = NULL; 393 ret = crtc->funcs->set_config(&set); 394 if (ret) 395 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); 396 } 397 } 398 399 list_for_each_entry(plane, &dev->mode_config.plane_list, head) { 400 if (plane->fb == fb) { 401 /* should turn off the crtc */ 402 ret = plane->funcs->disable_plane(plane); 403 if (ret) 404 DRM_ERROR("failed to disable plane with busy fb\n"); 405 /* disconnect the plane from the fb and crtc: */ 406 plane->fb = NULL; 407 plane->crtc = NULL; 408 } 409 } 410 411 list_del(&fb->filp_head); 412 413 drm_framebuffer_unreference(fb); 414 } 415 EXPORT_SYMBOL(drm_framebuffer_remove); 416 417 /** 418 * drm_crtc_init - Initialise a new CRTC object 419 * @dev: DRM device 420 * @crtc: CRTC object to init 421 * @funcs: callbacks for the new CRTC 422 * 423 * LOCKING: 424 * Takes mode_config lock. 425 * 426 * Inits a new object created as base part of an driver crtc object. 427 * 428 * RETURNS: 429 * Zero on success, error code on failure. 430 */ 431 int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc, 432 const struct drm_crtc_funcs *funcs) 433 { 434 int ret; 435 436 crtc->dev = dev; 437 crtc->funcs = funcs; 438 crtc->invert_dimensions = false; 439 440 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 441 442 ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); 443 if (ret) 444 goto out; 445 446 crtc->base.properties = &crtc->properties; 447 448 list_add_tail(&crtc->head, &dev->mode_config.crtc_list); 449 dev->mode_config.num_crtc++; 450 451 out: 452 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 453 454 return ret; 455 } 456 EXPORT_SYMBOL(drm_crtc_init); 457 458 /** 459 * drm_crtc_cleanup - Cleans up the core crtc usage. 460 * @crtc: CRTC to cleanup 461 * 462 * LOCKING: 463 * Caller must hold mode config lock. 464 * 465 * Cleanup @crtc. Removes from drm modesetting space 466 * does NOT free object, caller does that. 467 */ 468 void drm_crtc_cleanup(struct drm_crtc *crtc) 469 { 470 struct drm_device *dev = crtc->dev; 471 472 drm_free(crtc->gamma_store, DRM_MEM_KMS); 473 crtc->gamma_store = NULL; 474 475 drm_mode_object_put(dev, &crtc->base); 476 list_del(&crtc->head); 477 dev->mode_config.num_crtc--; 478 } 479 EXPORT_SYMBOL(drm_crtc_cleanup); 480 481 /** 482 * drm_mode_probed_add - add a mode to a connector's probed mode list 483 * @connector: connector the new mode 484 * @mode: mode data 485 * 486 * LOCKING: 487 * Caller must hold mode config lock. 488 * 489 * Add @mode to @connector's mode list for later use. 490 */ 491 void drm_mode_probed_add(struct drm_connector *connector, 492 struct drm_display_mode *mode) 493 { 494 list_add(&mode->head, &connector->probed_modes); 495 } 496 EXPORT_SYMBOL(drm_mode_probed_add); 497 498 /** 499 * drm_mode_remove - remove and free a mode 500 * @connector: connector list to modify 501 * @mode: mode to remove 502 * 503 * LOCKING: 504 * Caller must hold mode config lock. 505 * 506 * Remove @mode from @connector's mode list, then free it. 507 */ 508 void drm_mode_remove(struct drm_connector *connector, 509 struct drm_display_mode *mode) 510 { 511 list_del(&mode->head); 512 drm_mode_destroy(connector->dev, mode); 513 } 514 EXPORT_SYMBOL(drm_mode_remove); 515 516 /** 517 * drm_connector_init - Init a preallocated connector 518 * @dev: DRM device 519 * @connector: the connector to init 520 * @funcs: callbacks for this connector 521 * @name: user visible name of the connector 522 * 523 * LOCKING: 524 * Takes mode config lock. 525 * 526 * Initialises a preallocated connector. Connectors should be 527 * subclassed as part of driver connector objects. 528 * 529 * RETURNS: 530 * Zero on success, error code on failure. 531 */ 532 int drm_connector_init(struct drm_device *dev, 533 struct drm_connector *connector, 534 const struct drm_connector_funcs *funcs, 535 int connector_type) 536 { 537 int ret; 538 539 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 540 541 ret = drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR); 542 if (ret) 543 goto out; 544 545 connector->base.properties = &connector->properties; 546 connector->dev = dev; 547 connector->funcs = funcs; 548 connector->connector_type = connector_type; 549 connector->connector_type_id = 550 ++drm_connector_enum_list[connector_type].count; /* TODO */ 551 INIT_LIST_HEAD(&connector->user_modes); 552 INIT_LIST_HEAD(&connector->probed_modes); 553 INIT_LIST_HEAD(&connector->modes); 554 connector->edid_blob_ptr = NULL; 555 connector->status = connector_status_unknown; 556 557 list_add_tail(&connector->head, &dev->mode_config.connector_list); 558 dev->mode_config.num_connector++; 559 560 if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) 561 drm_object_attach_property(&connector->base, 562 dev->mode_config.edid_property, 563 0); 564 565 drm_object_attach_property(&connector->base, 566 dev->mode_config.dpms_property, 0); 567 568 out: 569 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 570 571 return ret; 572 } 573 EXPORT_SYMBOL(drm_connector_init); 574 575 /** 576 * drm_connector_cleanup - cleans up an initialised connector 577 * @connector: connector to cleanup 578 * 579 * LOCKING: 580 * Takes mode config lock. 581 * 582 * Cleans up the connector but doesn't free the object. 583 */ 584 void drm_connector_cleanup(struct drm_connector *connector) 585 { 586 struct drm_device *dev = connector->dev; 587 struct drm_display_mode *mode, *t; 588 589 list_for_each_entry_safe(mode, t, &connector->probed_modes, head) 590 drm_mode_remove(connector, mode); 591 592 list_for_each_entry_safe(mode, t, &connector->modes, head) 593 drm_mode_remove(connector, mode); 594 595 list_for_each_entry_safe(mode, t, &connector->user_modes, head) 596 drm_mode_remove(connector, mode); 597 598 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 599 drm_mode_object_put(dev, &connector->base); 600 list_del(&connector->head); 601 dev->mode_config.num_connector--; 602 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 603 } 604 EXPORT_SYMBOL(drm_connector_cleanup); 605 606 void drm_connector_unplug_all(struct drm_device *dev) 607 { 608 #if 0 609 struct drm_connector *connector; 610 611 /* taking the mode config mutex ends up in a clash with sysfs */ 612 list_for_each_entry(connector, &dev->mode_config.connector_list, head) 613 drm_sysfs_connector_remove(connector); 614 615 #endif 616 } 617 EXPORT_SYMBOL(drm_connector_unplug_all); 618 619 int drm_encoder_init(struct drm_device *dev, 620 struct drm_encoder *encoder, 621 const struct drm_encoder_funcs *funcs, 622 int encoder_type) 623 { 624 int ret; 625 626 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 627 628 ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); 629 if (ret) 630 goto out; 631 632 encoder->dev = dev; 633 encoder->encoder_type = encoder_type; 634 encoder->funcs = funcs; 635 636 list_add_tail(&encoder->head, &dev->mode_config.encoder_list); 637 dev->mode_config.num_encoder++; 638 639 out: 640 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 641 642 return ret; 643 } 644 EXPORT_SYMBOL(drm_encoder_init); 645 646 void drm_encoder_cleanup(struct drm_encoder *encoder) 647 { 648 struct drm_device *dev = encoder->dev; 649 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 650 drm_mode_object_put(dev, &encoder->base); 651 list_del(&encoder->head); 652 dev->mode_config.num_encoder--; 653 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 654 } 655 EXPORT_SYMBOL(drm_encoder_cleanup); 656 657 int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, 658 unsigned long possible_crtcs, 659 const struct drm_plane_funcs *funcs, 660 const uint32_t *formats, uint32_t format_count, 661 bool priv) 662 { 663 int ret; 664 665 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 666 667 ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); 668 if (ret) 669 goto out; 670 671 plane->base.properties = &plane->properties; 672 plane->dev = dev; 673 plane->funcs = funcs; 674 plane->format_types = kmalloc(sizeof(uint32_t) * format_count, 675 DRM_MEM_KMS, M_WAITOK); 676 if (!plane->format_types) { 677 DRM_DEBUG_KMS("out of memory when allocating plane\n"); 678 drm_mode_object_put(dev, &plane->base); 679 ret = -ENOMEM; 680 goto out; 681 } 682 683 memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); 684 plane->format_count = format_count; 685 plane->possible_crtcs = possible_crtcs; 686 687 /* private planes are not exposed to userspace, but depending on 688 * display hardware, might be convenient to allow sharing programming 689 * for the scanout engine with the crtc implementation. 690 */ 691 if (!priv) { 692 list_add_tail(&plane->head, &dev->mode_config.plane_list); 693 dev->mode_config.num_plane++; 694 } else { 695 INIT_LIST_HEAD(&plane->head); 696 } 697 698 out: 699 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 700 701 return ret; 702 } 703 EXPORT_SYMBOL(drm_plane_init); 704 705 void drm_plane_cleanup(struct drm_plane *plane) 706 { 707 struct drm_device *dev = plane->dev; 708 709 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 710 drm_free(plane->format_types, DRM_MEM_KMS); 711 drm_mode_object_put(dev, &plane->base); 712 /* if not added to a list, it must be a private plane */ 713 if (!list_empty(&plane->head)) { 714 list_del(&plane->head); 715 dev->mode_config.num_plane--; 716 } 717 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 718 } 719 EXPORT_SYMBOL(drm_plane_cleanup); 720 721 /** 722 * drm_mode_create - create a new display mode 723 * @dev: DRM device 724 * 725 * LOCKING: 726 * Caller must hold DRM mode_config lock. 727 * 728 * Create a new drm_display_mode, give it an ID, and return it. 729 * 730 * RETURNS: 731 * Pointer to new mode on success, NULL on error. 732 */ 733 struct drm_display_mode *drm_mode_create(struct drm_device *dev) 734 { 735 struct drm_display_mode *nmode; 736 737 nmode = kmalloc(sizeof(struct drm_display_mode), DRM_MEM_KMS, 738 M_WAITOK | M_ZERO); 739 if (!nmode) 740 return NULL; 741 742 if (drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE)) { 743 drm_free(nmode, DRM_MEM_KMS); 744 return NULL; 745 } 746 747 return nmode; 748 } 749 EXPORT_SYMBOL(drm_mode_create); 750 751 /** 752 * drm_mode_destroy - remove a mode 753 * @dev: DRM device 754 * @mode: mode to remove 755 * 756 * LOCKING: 757 * Caller must hold mode config lock. 758 * 759 * Free @mode's unique identifier, then free it. 760 */ 761 void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode) 762 { 763 if (!mode) 764 return; 765 766 drm_mode_object_put(dev, &mode->base); 767 768 drm_free(mode, DRM_MEM_KMS); 769 } 770 EXPORT_SYMBOL(drm_mode_destroy); 771 772 static int drm_mode_create_standard_connector_properties(struct drm_device *dev) 773 { 774 struct drm_property *edid; 775 struct drm_property *dpms; 776 777 /* 778 * Standard properties (apply to all connectors) 779 */ 780 edid = drm_property_create(dev, DRM_MODE_PROP_BLOB | 781 DRM_MODE_PROP_IMMUTABLE, 782 "EDID", 0); 783 dev->mode_config.edid_property = edid; 784 785 dpms = drm_property_create_enum(dev, 0, 786 "DPMS", drm_dpms_enum_list, 787 ARRAY_SIZE(drm_dpms_enum_list)); 788 dev->mode_config.dpms_property = dpms; 789 790 return 0; 791 } 792 793 /** 794 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties 795 * @dev: DRM device 796 * 797 * Called by a driver the first time a DVI-I connector is made. 798 */ 799 int drm_mode_create_dvi_i_properties(struct drm_device *dev) 800 { 801 struct drm_property *dvi_i_selector; 802 struct drm_property *dvi_i_subconnector; 803 804 if (dev->mode_config.dvi_i_select_subconnector_property) 805 return 0; 806 807 dvi_i_selector = 808 drm_property_create_enum(dev, 0, 809 "select subconnector", 810 drm_dvi_i_select_enum_list, 811 ARRAY_SIZE(drm_dvi_i_select_enum_list)); 812 dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; 813 814 dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 815 "subconnector", 816 drm_dvi_i_subconnector_enum_list, 817 ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); 818 dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; 819 820 return 0; 821 } 822 EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); 823 824 /** 825 * drm_create_tv_properties - create TV specific connector properties 826 * @dev: DRM device 827 * @num_modes: number of different TV formats (modes) supported 828 * @modes: array of pointers to strings containing name of each format 829 * 830 * Called by a driver's TV initialization routine, this function creates 831 * the TV specific connector properties for a given device. Caller is 832 * responsible for allocating a list of format names and passing them to 833 * this routine. 834 */ 835 int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes, 836 char *modes[]) 837 { 838 struct drm_property *tv_selector; 839 struct drm_property *tv_subconnector; 840 int i; 841 842 if (dev->mode_config.tv_select_subconnector_property) 843 return 0; 844 845 /* 846 * Basic connector properties 847 */ 848 tv_selector = drm_property_create_enum(dev, 0, 849 "select subconnector", 850 drm_tv_select_enum_list, 851 ARRAY_SIZE(drm_tv_select_enum_list)); 852 dev->mode_config.tv_select_subconnector_property = tv_selector; 853 854 tv_subconnector = 855 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 856 "subconnector", 857 drm_tv_subconnector_enum_list, 858 ARRAY_SIZE(drm_tv_subconnector_enum_list)); 859 dev->mode_config.tv_subconnector_property = tv_subconnector; 860 861 /* 862 * Other, TV specific properties: margins & TV modes. 863 */ 864 dev->mode_config.tv_left_margin_property = 865 drm_property_create_range(dev, 0, "left margin", 0, 100); 866 867 dev->mode_config.tv_right_margin_property = 868 drm_property_create_range(dev, 0, "right margin", 0, 100); 869 870 dev->mode_config.tv_top_margin_property = 871 drm_property_create_range(dev, 0, "top margin", 0, 100); 872 873 dev->mode_config.tv_bottom_margin_property = 874 drm_property_create_range(dev, 0, "bottom margin", 0, 100); 875 876 dev->mode_config.tv_mode_property = 877 drm_property_create(dev, DRM_MODE_PROP_ENUM, 878 "mode", num_modes); 879 for (i = 0; i < num_modes; i++) 880 drm_property_add_enum(dev->mode_config.tv_mode_property, i, 881 i, modes[i]); 882 883 dev->mode_config.tv_brightness_property = 884 drm_property_create_range(dev, 0, "brightness", 0, 100); 885 886 dev->mode_config.tv_contrast_property = 887 drm_property_create_range(dev, 0, "contrast", 0, 100); 888 889 dev->mode_config.tv_flicker_reduction_property = 890 drm_property_create_range(dev, 0, "flicker reduction", 0, 100); 891 892 dev->mode_config.tv_overscan_property = 893 drm_property_create_range(dev, 0, "overscan", 0, 100); 894 895 dev->mode_config.tv_saturation_property = 896 drm_property_create_range(dev, 0, "saturation", 0, 100); 897 898 dev->mode_config.tv_hue_property = 899 drm_property_create_range(dev, 0, "hue", 0, 100); 900 901 return 0; 902 } 903 EXPORT_SYMBOL(drm_mode_create_tv_properties); 904 905 /** 906 * drm_mode_create_scaling_mode_property - create scaling mode property 907 * @dev: DRM device 908 * 909 * Called by a driver the first time it's needed, must be attached to desired 910 * connectors. 911 */ 912 int drm_mode_create_scaling_mode_property(struct drm_device *dev) 913 { 914 struct drm_property *scaling_mode; 915 916 if (dev->mode_config.scaling_mode_property) 917 return 0; 918 919 scaling_mode = 920 drm_property_create_enum(dev, 0, "scaling mode", 921 drm_scaling_mode_enum_list, 922 ARRAY_SIZE(drm_scaling_mode_enum_list)); 923 924 dev->mode_config.scaling_mode_property = scaling_mode; 925 926 return 0; 927 } 928 EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); 929 930 /** 931 * drm_mode_create_dithering_property - create dithering property 932 * @dev: DRM device 933 * 934 * Called by a driver the first time it's needed, must be attached to desired 935 * connectors. 936 */ 937 int drm_mode_create_dithering_property(struct drm_device *dev) 938 { 939 struct drm_property *dithering_mode; 940 941 if (dev->mode_config.dithering_mode_property) 942 return 0; 943 944 dithering_mode = 945 drm_property_create_enum(dev, 0, "dithering", 946 drm_dithering_mode_enum_list, 947 ARRAY_SIZE(drm_dithering_mode_enum_list)); 948 dev->mode_config.dithering_mode_property = dithering_mode; 949 950 return 0; 951 } 952 EXPORT_SYMBOL(drm_mode_create_dithering_property); 953 954 /** 955 * drm_mode_create_dirty_property - create dirty property 956 * @dev: DRM device 957 * 958 * Called by a driver the first time it's needed, must be attached to desired 959 * connectors. 960 */ 961 int drm_mode_create_dirty_info_property(struct drm_device *dev) 962 { 963 struct drm_property *dirty_info; 964 965 if (dev->mode_config.dirty_info_property) 966 return 0; 967 968 dirty_info = 969 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 970 "dirty", 971 drm_dirty_info_enum_list, 972 ARRAY_SIZE(drm_dirty_info_enum_list)); 973 dev->mode_config.dirty_info_property = dirty_info; 974 975 return 0; 976 } 977 EXPORT_SYMBOL(drm_mode_create_dirty_info_property); 978 979 /** 980 * drm_mode_config_init - initialize DRM mode_configuration structure 981 * @dev: DRM device 982 * 983 * LOCKING: 984 * None, should happen single threaded at init time. 985 * 986 * Initialize @dev's mode_config structure, used for tracking the graphics 987 * configuration of @dev. 988 */ 989 void drm_mode_config_init(struct drm_device *dev) 990 { 991 lockinit(&dev->mode_config.mutex, "kmslk", 0, LK_CANRECURSE); 992 lockinit(&dev->mode_config.idr_mutex, "mcfgidr", 0, LK_CANRECURSE); 993 INIT_LIST_HEAD(&dev->mode_config.fb_list); 994 INIT_LIST_HEAD(&dev->mode_config.crtc_list); 995 INIT_LIST_HEAD(&dev->mode_config.connector_list); 996 INIT_LIST_HEAD(&dev->mode_config.encoder_list); 997 INIT_LIST_HEAD(&dev->mode_config.property_list); 998 INIT_LIST_HEAD(&dev->mode_config.property_blob_list); 999 INIT_LIST_HEAD(&dev->mode_config.plane_list); 1000 idr_init(&dev->mode_config.crtc_idr); 1001 1002 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 1003 drm_mode_create_standard_connector_properties(dev); 1004 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 1005 1006 /* Just to be sure */ 1007 dev->mode_config.num_fb = 0; 1008 dev->mode_config.num_connector = 0; 1009 dev->mode_config.num_crtc = 0; 1010 dev->mode_config.num_encoder = 0; 1011 } 1012 EXPORT_SYMBOL(drm_mode_config_init); 1013 1014 static int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group) 1015 { 1016 uint32_t total_objects = 0; 1017 1018 total_objects += dev->mode_config.num_crtc; 1019 total_objects += dev->mode_config.num_connector; 1020 total_objects += dev->mode_config.num_encoder; 1021 1022 group->id_list = kmalloc(total_objects * sizeof(uint32_t), 1023 DRM_MEM_KMS, M_WAITOK | M_ZERO); 1024 if (!group->id_list) 1025 return -ENOMEM; 1026 1027 group->num_crtcs = 0; 1028 group->num_connectors = 0; 1029 group->num_encoders = 0; 1030 return 0; 1031 } 1032 1033 int drm_mode_group_init_legacy_group(struct drm_device *dev, 1034 struct drm_mode_group *group) 1035 { 1036 struct drm_crtc *crtc; 1037 struct drm_encoder *encoder; 1038 struct drm_connector *connector; 1039 int ret; 1040 1041 if ((ret = drm_mode_group_init(dev, group))) 1042 return ret; 1043 1044 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) 1045 group->id_list[group->num_crtcs++] = crtc->base.id; 1046 1047 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) 1048 group->id_list[group->num_crtcs + group->num_encoders++] = 1049 encoder->base.id; 1050 1051 list_for_each_entry(connector, &dev->mode_config.connector_list, head) 1052 group->id_list[group->num_crtcs + group->num_encoders + 1053 group->num_connectors++] = connector->base.id; 1054 1055 return 0; 1056 } 1057 EXPORT_SYMBOL(drm_mode_group_init_legacy_group); 1058 1059 /** 1060 * drm_mode_config_cleanup - free up DRM mode_config info 1061 * @dev: DRM device 1062 * 1063 * LOCKING: 1064 * Caller must hold mode config lock. 1065 * 1066 * Free up all the connectors and CRTCs associated with this DRM device, then 1067 * free up the framebuffers and associated buffer objects. 1068 * 1069 * FIXME: cleanup any dangling user buffer objects too 1070 */ 1071 void drm_mode_config_cleanup(struct drm_device *dev) 1072 { 1073 struct drm_connector *connector, *ot; 1074 struct drm_crtc *crtc, *ct; 1075 struct drm_encoder *encoder, *enct; 1076 struct drm_framebuffer *fb, *fbt; 1077 struct drm_property *property, *pt; 1078 struct drm_plane *plane, *plt; 1079 1080 list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, 1081 head) { 1082 encoder->funcs->destroy(encoder); 1083 } 1084 1085 list_for_each_entry_safe(connector, ot, 1086 &dev->mode_config.connector_list, head) { 1087 connector->funcs->destroy(connector); 1088 } 1089 1090 list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, 1091 head) { 1092 drm_property_destroy(dev, property); 1093 } 1094 1095 list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { 1096 drm_framebuffer_remove(fb); 1097 } 1098 1099 list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, 1100 head) { 1101 plane->funcs->destroy(plane); 1102 } 1103 1104 list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { 1105 crtc->funcs->destroy(crtc); 1106 } 1107 1108 idr_remove_all(&dev->mode_config.crtc_idr); 1109 idr_destroy(&dev->mode_config.crtc_idr); 1110 } 1111 EXPORT_SYMBOL(drm_mode_config_cleanup); 1112 1113 /** 1114 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo 1115 * @out: drm_mode_modeinfo struct to return to the user 1116 * @in: drm_display_mode to use 1117 * 1118 * LOCKING: 1119 * None. 1120 * 1121 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to 1122 * the user. 1123 */ 1124 static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out, 1125 const struct drm_display_mode *in) 1126 { 1127 WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX || 1128 in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX || 1129 in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX || 1130 in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX || 1131 in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX, 1132 "timing values too large for mode info\n"); 1133 1134 out->clock = in->clock; 1135 out->hdisplay = in->hdisplay; 1136 out->hsync_start = in->hsync_start; 1137 out->hsync_end = in->hsync_end; 1138 out->htotal = in->htotal; 1139 out->hskew = in->hskew; 1140 out->vdisplay = in->vdisplay; 1141 out->vsync_start = in->vsync_start; 1142 out->vsync_end = in->vsync_end; 1143 out->vtotal = in->vtotal; 1144 out->vscan = in->vscan; 1145 out->vrefresh = in->vrefresh; 1146 out->flags = in->flags; 1147 out->type = in->type; 1148 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); 1149 out->name[DRM_DISPLAY_MODE_LEN-1] = 0; 1150 } 1151 1152 /** 1153 * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode 1154 * @out: drm_display_mode to return to the user 1155 * @in: drm_mode_modeinfo to use 1156 * 1157 * LOCKING: 1158 * None. 1159 * 1160 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to 1161 * the caller. 1162 * 1163 * RETURNS: 1164 * Zero on success, errno on failure. 1165 */ 1166 static int drm_crtc_convert_umode(struct drm_display_mode *out, 1167 const struct drm_mode_modeinfo *in) 1168 { 1169 if (in->clock > INT_MAX || in->vrefresh > INT_MAX) 1170 return -ERANGE; 1171 1172 out->clock = in->clock; 1173 out->hdisplay = in->hdisplay; 1174 out->hsync_start = in->hsync_start; 1175 out->hsync_end = in->hsync_end; 1176 out->htotal = in->htotal; 1177 out->hskew = in->hskew; 1178 out->vdisplay = in->vdisplay; 1179 out->vsync_start = in->vsync_start; 1180 out->vsync_end = in->vsync_end; 1181 out->vtotal = in->vtotal; 1182 out->vscan = in->vscan; 1183 out->vrefresh = in->vrefresh; 1184 out->flags = in->flags; 1185 out->type = in->type; 1186 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); 1187 out->name[DRM_DISPLAY_MODE_LEN-1] = 0; 1188 1189 return 0; 1190 } 1191 1192 /** 1193 * drm_mode_getresources - get graphics configuration 1194 * @inode: inode from the ioctl 1195 * @filp: file * from the ioctl 1196 * @cmd: cmd from ioctl 1197 * @arg: arg from ioctl 1198 * 1199 * LOCKING: 1200 * Takes mode config lock. 1201 * 1202 * Construct a set of configuration description structures and return 1203 * them to the user, including CRTC, connector and framebuffer configuration. 1204 * 1205 * Called by the user via ioctl. 1206 * 1207 * RETURNS: 1208 * Zero on success, errno on failure. 1209 */ 1210 int drm_mode_getresources(struct drm_device *dev, void *data, 1211 struct drm_file *file_priv) 1212 { 1213 struct drm_mode_card_res *card_res = data; 1214 struct list_head *lh; 1215 struct drm_framebuffer *fb; 1216 struct drm_connector *connector; 1217 struct drm_crtc *crtc; 1218 struct drm_encoder *encoder; 1219 int ret = 0; 1220 int connector_count = 0; 1221 int crtc_count = 0; 1222 int fb_count = 0; 1223 int encoder_count = 0; 1224 int copied = 0, i; 1225 uint32_t __user *fb_id; 1226 uint32_t __user *crtc_id; 1227 uint32_t __user *connector_id; 1228 uint32_t __user *encoder_id; 1229 struct drm_mode_group *mode_group; 1230 1231 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1232 return -EINVAL; 1233 1234 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 1235 1236 /* 1237 * For the non-control nodes we need to limit the list of resources 1238 * by IDs in the group list for this node 1239 */ 1240 list_for_each(lh, &file_priv->fbs) 1241 fb_count++; 1242 1243 #if 1 1244 mode_group = NULL; /* XXXKIB */ 1245 if (1 || file_priv->master) { 1246 #else 1247 mode_group = &file_priv->masterp->minor->mode_group; 1248 if (file_priv->masterp->minor->type == DRM_MINOR_CONTROL) { 1249 #endif 1250 1251 list_for_each(lh, &dev->mode_config.crtc_list) 1252 crtc_count++; 1253 1254 list_for_each(lh, &dev->mode_config.connector_list) 1255 connector_count++; 1256 1257 list_for_each(lh, &dev->mode_config.encoder_list) 1258 encoder_count++; 1259 } else { 1260 1261 crtc_count = mode_group->num_crtcs; 1262 connector_count = mode_group->num_connectors; 1263 encoder_count = mode_group->num_encoders; 1264 } 1265 1266 card_res->max_height = dev->mode_config.max_height; 1267 card_res->min_height = dev->mode_config.min_height; 1268 card_res->max_width = dev->mode_config.max_width; 1269 card_res->min_width = dev->mode_config.min_width; 1270 1271 /* handle this in 4 parts */ 1272 /* FBs */ 1273 if (card_res->count_fbs >= fb_count) { 1274 copied = 0; 1275 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; 1276 list_for_each_entry(fb, &file_priv->fbs, filp_head) { 1277 if (put_user(fb->base.id, fb_id + copied)) { 1278 ret = -EFAULT; 1279 goto out; 1280 } 1281 copied++; 1282 } 1283 } 1284 card_res->count_fbs = fb_count; 1285 1286 /* CRTCs */ 1287 if (card_res->count_crtcs >= crtc_count) { 1288 copied = 0; 1289 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; 1290 #if 1 1291 if (1 || file_priv->master) { 1292 #else 1293 if (file_priv->masterp->minor->type == DRM_MINOR_CONTROL) { 1294 #endif 1295 list_for_each_entry(crtc, &dev->mode_config.crtc_list, 1296 head) { 1297 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); 1298 if (put_user(crtc->base.id, crtc_id + copied)) { 1299 ret = -EFAULT; 1300 goto out; 1301 } 1302 copied++; 1303 } 1304 } else { 1305 for (i = 0; i < mode_group->num_crtcs; i++) { 1306 if (put_user(mode_group->id_list[i], 1307 crtc_id + copied)) { 1308 ret = -EFAULT; 1309 goto out; 1310 } 1311 copied++; 1312 } 1313 } 1314 } 1315 card_res->count_crtcs = crtc_count; 1316 1317 /* Encoders */ 1318 if (card_res->count_encoders >= encoder_count) { 1319 copied = 0; 1320 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; 1321 #if 1 1322 if (file_priv->master) { 1323 #else 1324 if (file_priv->masterp->minor->type == DRM_MINOR_CONTROL) { 1325 #endif 1326 list_for_each_entry(encoder, 1327 &dev->mode_config.encoder_list, 1328 head) { 1329 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id, 1330 drm_get_encoder_name(encoder)); 1331 if (put_user(encoder->base.id, encoder_id + 1332 copied)) { 1333 ret = -EFAULT; 1334 goto out; 1335 } 1336 copied++; 1337 } 1338 } else { 1339 for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) { 1340 if (put_user(mode_group->id_list[i], 1341 encoder_id + copied)) { 1342 ret = -EFAULT; 1343 goto out; 1344 } 1345 copied++; 1346 } 1347 1348 } 1349 } 1350 card_res->count_encoders = encoder_count; 1351 1352 /* Connectors */ 1353 if (card_res->count_connectors >= connector_count) { 1354 copied = 0; 1355 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; 1356 #if 1 1357 if (file_priv->master) { 1358 #else 1359 if (file_priv->masterp->minor->type == DRM_MINOR_CONTROL) { 1360 #endif 1361 list_for_each_entry(connector, 1362 &dev->mode_config.connector_list, 1363 head) { 1364 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", 1365 connector->base.id, 1366 drm_get_connector_name(connector)); 1367 if (put_user(connector->base.id, 1368 connector_id + copied)) { 1369 ret = -EFAULT; 1370 goto out; 1371 } 1372 copied++; 1373 } 1374 } else { 1375 int start = mode_group->num_crtcs + 1376 mode_group->num_encoders; 1377 for (i = start; i < start + mode_group->num_connectors; i++) { 1378 if (put_user(mode_group->id_list[i], 1379 connector_id + copied)) { 1380 ret = -EFAULT; 1381 goto out; 1382 } 1383 copied++; 1384 } 1385 } 1386 } 1387 card_res->count_connectors = connector_count; 1388 1389 DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs, 1390 card_res->count_connectors, card_res->count_encoders); 1391 1392 out: 1393 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 1394 return ret; 1395 } 1396 1397 /** 1398 * drm_mode_getcrtc - get CRTC configuration 1399 * @inode: inode from the ioctl 1400 * @filp: file * from the ioctl 1401 * @cmd: cmd from ioctl 1402 * @arg: arg from ioctl 1403 * 1404 * LOCKING: 1405 * Takes mode config lock. 1406 * 1407 * Construct a CRTC configuration structure to return to the user. 1408 * 1409 * Called by the user via ioctl. 1410 * 1411 * RETURNS: 1412 * Zero on success, errno on failure. 1413 */ 1414 int drm_mode_getcrtc(struct drm_device *dev, 1415 void *data, struct drm_file *file_priv) 1416 { 1417 struct drm_mode_crtc *crtc_resp = data; 1418 struct drm_crtc *crtc; 1419 struct drm_mode_object *obj; 1420 int ret = 0; 1421 1422 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1423 return -EINVAL; 1424 1425 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 1426 1427 obj = drm_mode_object_find(dev, crtc_resp->crtc_id, 1428 DRM_MODE_OBJECT_CRTC); 1429 if (!obj) { 1430 ret = -EINVAL; 1431 goto out; 1432 } 1433 crtc = obj_to_crtc(obj); 1434 1435 crtc_resp->x = crtc->x; 1436 crtc_resp->y = crtc->y; 1437 crtc_resp->gamma_size = crtc->gamma_size; 1438 if (crtc->fb) 1439 crtc_resp->fb_id = crtc->fb->base.id; 1440 else 1441 crtc_resp->fb_id = 0; 1442 1443 if (crtc->enabled) { 1444 1445 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode); 1446 crtc_resp->mode_valid = 1; 1447 1448 } else { 1449 crtc_resp->mode_valid = 0; 1450 } 1451 1452 out: 1453 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 1454 return ret; 1455 } 1456 1457 /** 1458 * drm_mode_getconnector - get connector configuration 1459 * @inode: inode from the ioctl 1460 * @filp: file * from the ioctl 1461 * @cmd: cmd from ioctl 1462 * @arg: arg from ioctl 1463 * 1464 * LOCKING: 1465 * Takes mode config lock. 1466 * 1467 * Construct a connector configuration structure to return to the user. 1468 * 1469 * Called by the user via ioctl. 1470 * 1471 * RETURNS: 1472 * Zero on success, errno on failure. 1473 */ 1474 int drm_mode_getconnector(struct drm_device *dev, void *data, 1475 struct drm_file *file_priv) 1476 { 1477 struct drm_mode_get_connector *out_resp = data; 1478 struct drm_mode_object *obj; 1479 struct drm_connector *connector; 1480 struct drm_display_mode *mode; 1481 int mode_count = 0; 1482 int props_count = 0; 1483 int encoders_count = 0; 1484 int ret = 0; 1485 int copied = 0; 1486 int i; 1487 struct drm_mode_modeinfo u_mode; 1488 struct drm_mode_modeinfo __user *mode_ptr; 1489 uint32_t __user *prop_ptr; 1490 uint64_t __user *prop_values; 1491 uint32_t __user *encoder_ptr; 1492 1493 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1494 return -EINVAL; 1495 1496 memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); 1497 1498 DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id); 1499 1500 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 1501 1502 obj = drm_mode_object_find(dev, out_resp->connector_id, 1503 DRM_MODE_OBJECT_CONNECTOR); 1504 if (!obj) { 1505 ret = -EINVAL; 1506 goto out; 1507 } 1508 connector = obj_to_connector(obj); 1509 1510 props_count = connector->properties.count; 1511 1512 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 1513 if (connector->encoder_ids[i] != 0) { 1514 encoders_count++; 1515 } 1516 } 1517 1518 if (out_resp->count_modes == 0) { 1519 connector->funcs->fill_modes(connector, 1520 dev->mode_config.max_width, 1521 dev->mode_config.max_height); 1522 } 1523 1524 /* delayed so we get modes regardless of pre-fill_modes state */ 1525 list_for_each_entry(mode, &connector->modes, head) 1526 mode_count++; 1527 1528 out_resp->connector_id = connector->base.id; 1529 out_resp->connector_type = connector->connector_type; 1530 out_resp->connector_type_id = connector->connector_type_id; 1531 out_resp->mm_width = connector->display_info.width_mm; 1532 out_resp->mm_height = connector->display_info.height_mm; 1533 out_resp->subpixel = connector->display_info.subpixel_order; 1534 out_resp->connection = connector->status; 1535 if (connector->encoder) 1536 out_resp->encoder_id = connector->encoder->base.id; 1537 else 1538 out_resp->encoder_id = 0; 1539 1540 /* 1541 * This ioctl is called twice, once to determine how much space is 1542 * needed, and the 2nd time to fill it. 1543 */ 1544 if ((out_resp->count_modes >= mode_count) && mode_count) { 1545 copied = 0; 1546 mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; 1547 list_for_each_entry(mode, &connector->modes, head) { 1548 drm_crtc_convert_to_umode(&u_mode, mode); 1549 if (copy_to_user(mode_ptr + copied, 1550 &u_mode, sizeof(u_mode))) { 1551 ret = -EFAULT; 1552 goto out; 1553 } 1554 copied++; 1555 } 1556 } 1557 out_resp->count_modes = mode_count; 1558 1559 if ((out_resp->count_props >= props_count) && props_count) { 1560 copied = 0; 1561 prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr); 1562 prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr); 1563 for (i = 0; i < connector->properties.count; i++) { 1564 if (put_user(connector->properties.ids[i], 1565 prop_ptr + copied)) { 1566 ret = -EFAULT; 1567 goto out; 1568 } 1569 1570 if (put_user(connector->properties.values[i], 1571 prop_values + copied)) { 1572 ret = -EFAULT; 1573 goto out; 1574 } 1575 copied++; 1576 } 1577 } 1578 out_resp->count_props = props_count; 1579 1580 if ((out_resp->count_encoders >= encoders_count) && encoders_count) { 1581 copied = 0; 1582 encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); 1583 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 1584 if (connector->encoder_ids[i] != 0) { 1585 if (put_user(connector->encoder_ids[i], 1586 encoder_ptr + copied)) { 1587 ret = -EFAULT; 1588 goto out; 1589 } 1590 copied++; 1591 } 1592 } 1593 } 1594 out_resp->count_encoders = encoders_count; 1595 1596 out: 1597 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 1598 return ret; 1599 } 1600 1601 int drm_mode_getencoder(struct drm_device *dev, void *data, 1602 struct drm_file *file_priv) 1603 { 1604 struct drm_mode_get_encoder *enc_resp = data; 1605 struct drm_mode_object *obj; 1606 struct drm_encoder *encoder; 1607 int ret = 0; 1608 1609 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1610 return -EINVAL; 1611 1612 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 1613 obj = drm_mode_object_find(dev, enc_resp->encoder_id, 1614 DRM_MODE_OBJECT_ENCODER); 1615 if (!obj) { 1616 ret = -EINVAL; 1617 goto out; 1618 } 1619 encoder = obj_to_encoder(obj); 1620 1621 if (encoder->crtc) 1622 enc_resp->crtc_id = encoder->crtc->base.id; 1623 else 1624 enc_resp->crtc_id = 0; 1625 enc_resp->encoder_type = encoder->encoder_type; 1626 enc_resp->encoder_id = encoder->base.id; 1627 enc_resp->possible_crtcs = encoder->possible_crtcs; 1628 enc_resp->possible_clones = encoder->possible_clones; 1629 1630 out: 1631 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 1632 return ret; 1633 } 1634 1635 /** 1636 * drm_mode_getplane_res - get plane info 1637 * @dev: DRM device 1638 * @data: ioctl data 1639 * @file_priv: DRM file info 1640 * 1641 * LOCKING: 1642 * Takes mode config lock. 1643 * 1644 * Return an plane count and set of IDs. 1645 */ 1646 int drm_mode_getplane_res(struct drm_device *dev, void *data, 1647 struct drm_file *file_priv) 1648 { 1649 struct drm_mode_get_plane_res *plane_resp = data; 1650 struct drm_mode_config *config; 1651 struct drm_plane *plane; 1652 uint32_t __user *plane_ptr; 1653 int copied = 0, ret = 0; 1654 1655 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1656 return -EINVAL; 1657 1658 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 1659 config = &dev->mode_config; 1660 1661 /* 1662 * This ioctl is called twice, once to determine how much space is 1663 * needed, and the 2nd time to fill it. 1664 */ 1665 if (config->num_plane && 1666 (plane_resp->count_planes >= config->num_plane)) { 1667 plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; 1668 1669 list_for_each_entry(plane, &config->plane_list, head) { 1670 if (put_user(plane->base.id, plane_ptr + copied)) { 1671 ret = -EFAULT; 1672 goto out; 1673 } 1674 copied++; 1675 } 1676 } 1677 plane_resp->count_planes = config->num_plane; 1678 1679 out: 1680 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 1681 return ret; 1682 } 1683 1684 /** 1685 * drm_mode_getplane - get plane info 1686 * @dev: DRM device 1687 * @data: ioctl data 1688 * @file_priv: DRM file info 1689 * 1690 * LOCKING: 1691 * Takes mode config lock. 1692 * 1693 * Return plane info, including formats supported, gamma size, any 1694 * current fb, etc. 1695 */ 1696 int drm_mode_getplane(struct drm_device *dev, void *data, 1697 struct drm_file *file_priv) 1698 { 1699 struct drm_mode_get_plane *plane_resp = data; 1700 struct drm_mode_object *obj; 1701 struct drm_plane *plane; 1702 uint32_t __user *format_ptr; 1703 int ret = 0; 1704 1705 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1706 return -EINVAL; 1707 1708 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 1709 obj = drm_mode_object_find(dev, plane_resp->plane_id, 1710 DRM_MODE_OBJECT_PLANE); 1711 if (!obj) { 1712 ret = -ENOENT; 1713 goto out; 1714 } 1715 plane = obj_to_plane(obj); 1716 1717 if (plane->crtc) 1718 plane_resp->crtc_id = plane->crtc->base.id; 1719 else 1720 plane_resp->crtc_id = 0; 1721 1722 if (plane->fb) 1723 plane_resp->fb_id = plane->fb->base.id; 1724 else 1725 plane_resp->fb_id = 0; 1726 1727 plane_resp->plane_id = plane->base.id; 1728 plane_resp->possible_crtcs = plane->possible_crtcs; 1729 plane_resp->gamma_size = plane->gamma_size; 1730 1731 /* 1732 * This ioctl is called twice, once to determine how much space is 1733 * needed, and the 2nd time to fill it. 1734 */ 1735 if (plane->format_count && 1736 (plane_resp->count_format_types >= plane->format_count)) { 1737 format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; 1738 if (copy_to_user(format_ptr, 1739 plane->format_types, 1740 sizeof(uint32_t) * plane->format_count)) { 1741 ret = -EFAULT; 1742 goto out; 1743 } 1744 } 1745 plane_resp->count_format_types = plane->format_count; 1746 1747 out: 1748 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 1749 return ret; 1750 } 1751 1752 /** 1753 * drm_mode_setplane - set up or tear down an plane 1754 * @dev: DRM device 1755 * @data: ioctl data* 1756 * @file_prive: DRM file info 1757 * 1758 * LOCKING: 1759 * Takes mode config lock. 1760 * 1761 * Set plane info, including placement, fb, scaling, and other factors. 1762 * Or pass a NULL fb to disable. 1763 */ 1764 int drm_mode_setplane(struct drm_device *dev, void *data, 1765 struct drm_file *file_priv) 1766 { 1767 struct drm_mode_set_plane *plane_req = data; 1768 struct drm_mode_object *obj; 1769 struct drm_plane *plane; 1770 struct drm_crtc *crtc; 1771 struct drm_framebuffer *fb; 1772 int ret = 0; 1773 unsigned int fb_width, fb_height; 1774 int i; 1775 1776 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1777 return -EINVAL; 1778 1779 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 1780 1781 /* 1782 * First, find the plane, crtc, and fb objects. If not available, 1783 * we don't bother to call the driver. 1784 */ 1785 obj = drm_mode_object_find(dev, plane_req->plane_id, 1786 DRM_MODE_OBJECT_PLANE); 1787 if (!obj) { 1788 DRM_DEBUG_KMS("Unknown plane ID %d\n", 1789 plane_req->plane_id); 1790 ret = -ENOENT; 1791 goto out; 1792 } 1793 plane = obj_to_plane(obj); 1794 1795 /* No fb means shut it down */ 1796 if (!plane_req->fb_id) { 1797 plane->funcs->disable_plane(plane); 1798 plane->crtc = NULL; 1799 plane->fb = NULL; 1800 goto out; 1801 } 1802 1803 obj = drm_mode_object_find(dev, plane_req->crtc_id, 1804 DRM_MODE_OBJECT_CRTC); 1805 if (!obj) { 1806 DRM_DEBUG_KMS("Unknown crtc ID %d\n", 1807 plane_req->crtc_id); 1808 ret = -ENOENT; 1809 goto out; 1810 } 1811 crtc = obj_to_crtc(obj); 1812 1813 obj = drm_mode_object_find(dev, plane_req->fb_id, 1814 DRM_MODE_OBJECT_FB); 1815 if (!obj) { 1816 DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", 1817 plane_req->fb_id); 1818 ret = -ENOENT; 1819 goto out; 1820 } 1821 fb = obj_to_fb(obj); 1822 1823 /* Check whether this plane supports the fb pixel format. */ 1824 for (i = 0; i < plane->format_count; i++) 1825 if (fb->pixel_format == plane->format_types[i]) 1826 break; 1827 if (i == plane->format_count) { 1828 DRM_DEBUG_KMS("Invalid pixel format 0x%08x\n", fb->pixel_format); 1829 ret = -EINVAL; 1830 goto out; 1831 } 1832 1833 fb_width = fb->width << 16; 1834 fb_height = fb->height << 16; 1835 1836 /* Make sure source coordinates are inside the fb. */ 1837 if (plane_req->src_w > fb_width || 1838 plane_req->src_x > fb_width - plane_req->src_w || 1839 plane_req->src_h > fb_height || 1840 plane_req->src_y > fb_height - plane_req->src_h) { 1841 DRM_DEBUG_KMS("Invalid source coordinates " 1842 "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", 1843 plane_req->src_w >> 16, 1844 ((plane_req->src_w & 0xffff) * 15625) >> 10, 1845 plane_req->src_h >> 16, 1846 ((plane_req->src_h & 0xffff) * 15625) >> 10, 1847 plane_req->src_x >> 16, 1848 ((plane_req->src_x & 0xffff) * 15625) >> 10, 1849 plane_req->src_y >> 16, 1850 ((plane_req->src_y & 0xffff) * 15625) >> 10); 1851 ret = -ENOSPC; 1852 goto out; 1853 } 1854 1855 /* Give drivers some help against integer overflows */ 1856 if (plane_req->crtc_w > INT_MAX || 1857 plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w || 1858 plane_req->crtc_h > INT_MAX || 1859 plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) { 1860 DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", 1861 plane_req->crtc_w, plane_req->crtc_h, 1862 plane_req->crtc_x, plane_req->crtc_y); 1863 ret = -ERANGE; 1864 goto out; 1865 } 1866 1867 ret = plane->funcs->update_plane(plane, crtc, fb, 1868 plane_req->crtc_x, plane_req->crtc_y, 1869 plane_req->crtc_w, plane_req->crtc_h, 1870 plane_req->src_x, plane_req->src_y, 1871 plane_req->src_w, plane_req->src_h); 1872 if (!ret) { 1873 plane->crtc = crtc; 1874 plane->fb = fb; 1875 } 1876 1877 out: 1878 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 1879 1880 return ret; 1881 } 1882 1883 /** 1884 * drm_mode_setcrtc - set CRTC configuration 1885 * @inode: inode from the ioctl 1886 * @filp: file * from the ioctl 1887 * @cmd: cmd from ioctl 1888 * @arg: arg from ioctl 1889 * 1890 * LOCKING: 1891 * Takes mode config lock. 1892 * 1893 * Build a new CRTC configuration based on user request. 1894 * 1895 * Called by the user via ioctl. 1896 * 1897 * RETURNS: 1898 * Zero on success, errno on failure. 1899 */ 1900 int drm_mode_setcrtc(struct drm_device *dev, void *data, 1901 struct drm_file *file_priv) 1902 { 1903 struct drm_mode_config *config = &dev->mode_config; 1904 struct drm_mode_crtc *crtc_req = data; 1905 struct drm_mode_object *obj; 1906 struct drm_crtc *crtc; 1907 struct drm_connector **connector_set = NULL, *connector; 1908 struct drm_framebuffer *fb = NULL; 1909 struct drm_display_mode *mode = NULL; 1910 struct drm_mode_set set; 1911 uint32_t __user *set_connectors_ptr; 1912 int ret; 1913 int i; 1914 1915 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1916 return -EINVAL; 1917 1918 /* For some reason crtc x/y offsets are signed internally. */ 1919 if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX) 1920 return -ERANGE; 1921 1922 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 1923 obj = drm_mode_object_find(dev, crtc_req->crtc_id, 1924 DRM_MODE_OBJECT_CRTC); 1925 if (!obj) { 1926 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); 1927 ret = -EINVAL; 1928 goto out; 1929 } 1930 crtc = obj_to_crtc(obj); 1931 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); 1932 1933 if (crtc_req->mode_valid) { 1934 int hdisplay, vdisplay; 1935 /* If we have a mode we need a framebuffer. */ 1936 /* If we pass -1, set the mode with the currently bound fb */ 1937 if (crtc_req->fb_id == -1) { 1938 if (!crtc->fb) { 1939 DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); 1940 ret = -EINVAL; 1941 goto out; 1942 } 1943 fb = crtc->fb; 1944 } else { 1945 obj = drm_mode_object_find(dev, crtc_req->fb_id, 1946 DRM_MODE_OBJECT_FB); 1947 if (!obj) { 1948 DRM_DEBUG_KMS("Unknown FB ID%d\n", 1949 crtc_req->fb_id); 1950 ret = -EINVAL; 1951 goto out; 1952 } 1953 fb = obj_to_fb(obj); 1954 } 1955 1956 mode = drm_mode_create(dev); 1957 if (!mode) { 1958 ret = -ENOMEM; 1959 goto out; 1960 } 1961 1962 ret = drm_crtc_convert_umode(mode, &crtc_req->mode); 1963 if (ret) { 1964 DRM_DEBUG_KMS("Invalid mode\n"); 1965 goto out; 1966 } 1967 1968 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); 1969 1970 hdisplay = mode->hdisplay; 1971 vdisplay = mode->vdisplay; 1972 1973 if (crtc->invert_dimensions) 1974 swap(hdisplay, vdisplay); 1975 1976 if (hdisplay > fb->width || 1977 vdisplay > fb->height || 1978 crtc_req->x > fb->width - hdisplay || 1979 crtc_req->y > fb->height - vdisplay) { 1980 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n", 1981 fb->width, fb->height, 1982 hdisplay, vdisplay, crtc_req->x, crtc_req->y, 1983 crtc->invert_dimensions ? " (inverted)" : ""); 1984 ret = -ENOSPC; 1985 goto out; 1986 } 1987 } 1988 1989 if (crtc_req->count_connectors == 0 && mode) { 1990 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); 1991 ret = -EINVAL; 1992 goto out; 1993 } 1994 1995 if (crtc_req->count_connectors > 0 && (!mode || !fb)) { 1996 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", 1997 crtc_req->count_connectors); 1998 ret = -EINVAL; 1999 goto out; 2000 } 2001 2002 if (crtc_req->count_connectors > 0) { 2003 u32 out_id; 2004 2005 /* Avoid unbounded kernel memory allocation */ 2006 if (crtc_req->count_connectors > config->num_connector) { 2007 ret = -EINVAL; 2008 goto out; 2009 } 2010 2011 connector_set = kmalloc(crtc_req->count_connectors * 2012 sizeof(struct drm_connector *), DRM_MEM_KMS, M_WAITOK); 2013 if (!connector_set) { 2014 ret = -ENOMEM; 2015 goto out; 2016 } 2017 2018 for (i = 0; i < crtc_req->count_connectors; i++) { 2019 set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; 2020 if (get_user(out_id, &set_connectors_ptr[i])) { 2021 ret = -EFAULT; 2022 goto out; 2023 } 2024 2025 obj = drm_mode_object_find(dev, out_id, 2026 DRM_MODE_OBJECT_CONNECTOR); 2027 if (!obj) { 2028 DRM_DEBUG_KMS("Connector id %d unknown\n", 2029 out_id); 2030 ret = -EINVAL; 2031 goto out; 2032 } 2033 connector = obj_to_connector(obj); 2034 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", 2035 connector->base.id, 2036 drm_get_connector_name(connector)); 2037 2038 connector_set[i] = connector; 2039 } 2040 } 2041 2042 set.crtc = crtc; 2043 set.x = crtc_req->x; 2044 set.y = crtc_req->y; 2045 set.mode = mode; 2046 set.connectors = connector_set; 2047 set.num_connectors = crtc_req->count_connectors; 2048 set.fb = fb; 2049 ret = crtc->funcs->set_config(&set); 2050 2051 out: 2052 drm_free(connector_set, DRM_MEM_KMS); 2053 drm_mode_destroy(dev, mode); 2054 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 2055 return ret; 2056 } 2057 2058 int drm_mode_cursor_ioctl(struct drm_device *dev, 2059 void *data, struct drm_file *file_priv) 2060 { 2061 struct drm_mode_cursor *req = data; 2062 struct drm_mode_object *obj; 2063 struct drm_crtc *crtc; 2064 int ret = 0; 2065 2066 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2067 return -EINVAL; 2068 2069 if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) 2070 return -EINVAL; 2071 2072 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 2073 obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC); 2074 if (!obj) { 2075 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); 2076 ret = -EINVAL; 2077 goto out; 2078 } 2079 crtc = obj_to_crtc(obj); 2080 2081 if (req->flags & DRM_MODE_CURSOR_BO) { 2082 if (!crtc->funcs->cursor_set) { 2083 ret = -ENXIO; 2084 goto out; 2085 } 2086 /* Turns off the cursor if handle is 0 */ 2087 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, 2088 req->width, req->height); 2089 } 2090 2091 if (req->flags & DRM_MODE_CURSOR_MOVE) { 2092 if (crtc->funcs->cursor_move) { 2093 ret = crtc->funcs->cursor_move(crtc, req->x, req->y); 2094 } else { 2095 ret = -EFAULT; 2096 goto out; 2097 } 2098 } 2099 out: 2100 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 2101 return ret; 2102 } 2103 2104 /* Original addfb only supported RGB formats, so figure out which one */ 2105 uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) 2106 { 2107 uint32_t fmt; 2108 2109 switch (bpp) { 2110 case 8: 2111 fmt = DRM_FORMAT_RGB332; 2112 break; 2113 case 16: 2114 if (depth == 15) 2115 fmt = DRM_FORMAT_XRGB1555; 2116 else 2117 fmt = DRM_FORMAT_RGB565; 2118 break; 2119 case 24: 2120 fmt = DRM_FORMAT_RGB888; 2121 break; 2122 case 32: 2123 if (depth == 24) 2124 fmt = DRM_FORMAT_XRGB8888; 2125 else if (depth == 30) 2126 fmt = DRM_FORMAT_XRGB2101010; 2127 else 2128 fmt = DRM_FORMAT_ARGB8888; 2129 break; 2130 default: 2131 DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); 2132 fmt = DRM_FORMAT_XRGB8888; 2133 break; 2134 } 2135 2136 return fmt; 2137 } 2138 EXPORT_SYMBOL(drm_mode_legacy_fb_format); 2139 2140 /** 2141 * drm_mode_addfb - add an FB to the graphics configuration 2142 * @inode: inode from the ioctl 2143 * @filp: file * from the ioctl 2144 * @cmd: cmd from ioctl 2145 * @arg: arg from ioctl 2146 * 2147 * LOCKING: 2148 * Takes mode config lock. 2149 * 2150 * Add a new FB to the specified CRTC, given a user request. 2151 * 2152 * Called by the user via ioctl. 2153 * 2154 * RETURNS: 2155 * Zero on success, errno on failure. 2156 */ 2157 int drm_mode_addfb(struct drm_device *dev, 2158 void *data, struct drm_file *file_priv) 2159 { 2160 struct drm_mode_fb_cmd *or = data; 2161 struct drm_mode_fb_cmd2 r = {}; 2162 struct drm_mode_config *config = &dev->mode_config; 2163 struct drm_framebuffer *fb; 2164 int ret = 0; 2165 2166 /* Use new struct with format internally */ 2167 r.fb_id = or->fb_id; 2168 r.width = or->width; 2169 r.height = or->height; 2170 r.pitches[0] = or->pitch; 2171 r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); 2172 r.handles[0] = or->handle; 2173 2174 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2175 return -EINVAL; 2176 2177 if ((config->min_width > r.width) || (r.width > config->max_width)) 2178 return -EINVAL; 2179 2180 if ((config->min_height > r.height) || (r.height > config->max_height)) 2181 return -EINVAL; 2182 2183 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 2184 2185 /* TODO check buffer is sufficiently large */ 2186 /* TODO setup destructor callback */ 2187 2188 ret = -dev->mode_config.funcs->fb_create(dev, file_priv, &r, &fb); 2189 if (ret != 0) { 2190 DRM_ERROR("could not create framebuffer, error %d\n", ret); 2191 goto out; 2192 } 2193 2194 or->fb_id = fb->base.id; 2195 list_add(&fb->filp_head, &file_priv->fbs); 2196 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); 2197 2198 out: 2199 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 2200 return ret; 2201 } 2202 2203 static int format_check(const struct drm_mode_fb_cmd2 *r) 2204 { 2205 uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; 2206 2207 switch (format) { 2208 case DRM_FORMAT_C8: 2209 case DRM_FORMAT_RGB332: 2210 case DRM_FORMAT_BGR233: 2211 case DRM_FORMAT_XRGB4444: 2212 case DRM_FORMAT_XBGR4444: 2213 case DRM_FORMAT_RGBX4444: 2214 case DRM_FORMAT_BGRX4444: 2215 case DRM_FORMAT_ARGB4444: 2216 case DRM_FORMAT_ABGR4444: 2217 case DRM_FORMAT_RGBA4444: 2218 case DRM_FORMAT_BGRA4444: 2219 case DRM_FORMAT_XRGB1555: 2220 case DRM_FORMAT_XBGR1555: 2221 case DRM_FORMAT_RGBX5551: 2222 case DRM_FORMAT_BGRX5551: 2223 case DRM_FORMAT_ARGB1555: 2224 case DRM_FORMAT_ABGR1555: 2225 case DRM_FORMAT_RGBA5551: 2226 case DRM_FORMAT_BGRA5551: 2227 case DRM_FORMAT_RGB565: 2228 case DRM_FORMAT_BGR565: 2229 case DRM_FORMAT_RGB888: 2230 case DRM_FORMAT_BGR888: 2231 case DRM_FORMAT_XRGB8888: 2232 case DRM_FORMAT_XBGR8888: 2233 case DRM_FORMAT_RGBX8888: 2234 case DRM_FORMAT_BGRX8888: 2235 case DRM_FORMAT_ARGB8888: 2236 case DRM_FORMAT_ABGR8888: 2237 case DRM_FORMAT_RGBA8888: 2238 case DRM_FORMAT_BGRA8888: 2239 case DRM_FORMAT_XRGB2101010: 2240 case DRM_FORMAT_XBGR2101010: 2241 case DRM_FORMAT_RGBX1010102: 2242 case DRM_FORMAT_BGRX1010102: 2243 case DRM_FORMAT_ARGB2101010: 2244 case DRM_FORMAT_ABGR2101010: 2245 case DRM_FORMAT_RGBA1010102: 2246 case DRM_FORMAT_BGRA1010102: 2247 case DRM_FORMAT_YUYV: 2248 case DRM_FORMAT_YVYU: 2249 case DRM_FORMAT_UYVY: 2250 case DRM_FORMAT_VYUY: 2251 case DRM_FORMAT_AYUV: 2252 case DRM_FORMAT_NV12: 2253 case DRM_FORMAT_NV21: 2254 case DRM_FORMAT_NV16: 2255 case DRM_FORMAT_NV61: 2256 case DRM_FORMAT_NV24: 2257 case DRM_FORMAT_NV42: 2258 case DRM_FORMAT_YUV410: 2259 case DRM_FORMAT_YVU410: 2260 case DRM_FORMAT_YUV411: 2261 case DRM_FORMAT_YVU411: 2262 case DRM_FORMAT_YUV420: 2263 case DRM_FORMAT_YVU420: 2264 case DRM_FORMAT_YUV422: 2265 case DRM_FORMAT_YVU422: 2266 case DRM_FORMAT_YUV444: 2267 case DRM_FORMAT_YVU444: 2268 return 0; 2269 default: 2270 return -EINVAL; 2271 } 2272 } 2273 2274 static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) 2275 { 2276 int ret, hsub, vsub, num_planes, i; 2277 2278 ret = format_check(r); 2279 if (ret) { 2280 DRM_DEBUG_KMS("bad framebuffer format 0x%08x\n", r->pixel_format); 2281 return ret; 2282 } 2283 2284 hsub = drm_format_horz_chroma_subsampling(r->pixel_format); 2285 vsub = drm_format_vert_chroma_subsampling(r->pixel_format); 2286 num_planes = drm_format_num_planes(r->pixel_format); 2287 2288 if (r->width == 0 || r->width % hsub) { 2289 DRM_DEBUG_KMS("bad framebuffer width %u\n", r->height); 2290 return -EINVAL; 2291 } 2292 2293 if (r->height == 0 || r->height % vsub) { 2294 DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); 2295 return -EINVAL; 2296 } 2297 2298 for (i = 0; i < num_planes; i++) { 2299 unsigned int width = r->width / (i != 0 ? hsub : 1); 2300 unsigned int height = r->height / (i != 0 ? vsub : 1); 2301 unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i); 2302 2303 if (!r->handles[i]) { 2304 DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); 2305 return -EINVAL; 2306 } 2307 2308 if ((uint64_t) width * cpp > UINT_MAX) 2309 return -ERANGE; 2310 2311 if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) 2312 return -ERANGE; 2313 2314 if (r->pitches[i] < width * cpp) { 2315 DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); 2316 return -EINVAL; 2317 } 2318 } 2319 2320 return 0; 2321 } 2322 2323 /** 2324 * drm_mode_addfb2 - add an FB to the graphics configuration 2325 * @inode: inode from the ioctl 2326 * @filp: file * from the ioctl 2327 * @cmd: cmd from ioctl 2328 * @arg: arg from ioctl 2329 * 2330 * LOCKING: 2331 * Takes mode config lock. 2332 * 2333 * Add a new FB to the specified CRTC, given a user request with format. 2334 * 2335 * Called by the user via ioctl. 2336 * 2337 * RETURNS: 2338 * Zero on success, errno on failure. 2339 */ 2340 int drm_mode_addfb2(struct drm_device *dev, 2341 void *data, struct drm_file *file_priv) 2342 { 2343 struct drm_mode_fb_cmd2 *r = data; 2344 struct drm_mode_config *config = &dev->mode_config; 2345 struct drm_framebuffer *fb; 2346 int ret; 2347 2348 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2349 return -EINVAL; 2350 2351 if (r->flags & ~DRM_MODE_FB_INTERLACED) { 2352 DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags); 2353 return -EINVAL; 2354 } 2355 2356 if ((config->min_width > r->width) || (r->width > config->max_width)) { 2357 DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", 2358 r->width, config->min_width, config->max_width); 2359 return -EINVAL; 2360 } 2361 if ((config->min_height > r->height) || (r->height > config->max_height)) { 2362 DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", 2363 r->height, config->min_height, config->max_height); 2364 return -EINVAL; 2365 } 2366 2367 ret = framebuffer_check(r); 2368 if (ret) 2369 return ret; 2370 2371 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 2372 2373 ret = -dev->mode_config.funcs->fb_create(dev, file_priv, r, &fb); 2374 if (ret != 0) { 2375 DRM_ERROR("could not create framebuffer, error %d\n", ret); 2376 ret = PTR_ERR(fb); 2377 goto out; 2378 } 2379 2380 r->fb_id = fb->base.id; 2381 list_add(&fb->filp_head, &file_priv->fbs); 2382 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); 2383 2384 out: 2385 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 2386 return ret; 2387 } 2388 2389 /** 2390 * drm_mode_rmfb - remove an FB from the configuration 2391 * @inode: inode from the ioctl 2392 * @filp: file * from the ioctl 2393 * @cmd: cmd from ioctl 2394 * @arg: arg from ioctl 2395 * 2396 * LOCKING: 2397 * Takes mode config lock. 2398 * 2399 * Remove the FB specified by the user. 2400 * 2401 * Called by the user via ioctl. 2402 * 2403 * RETURNS: 2404 * Zero on success, errno on failure. 2405 */ 2406 int drm_mode_rmfb(struct drm_device *dev, 2407 void *data, struct drm_file *file_priv) 2408 { 2409 struct drm_mode_object *obj; 2410 struct drm_framebuffer *fb = NULL; 2411 struct drm_framebuffer *fbl = NULL; 2412 uint32_t *id = data; 2413 int ret = 0; 2414 int found = 0; 2415 2416 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2417 return -EINVAL; 2418 2419 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 2420 obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB); 2421 /* TODO check that we really get a framebuffer back. */ 2422 if (!obj) { 2423 ret = -EINVAL; 2424 goto out; 2425 } 2426 fb = obj_to_fb(obj); 2427 2428 list_for_each_entry(fbl, &file_priv->fbs, filp_head) 2429 if (fb == fbl) 2430 found = 1; 2431 2432 if (!found) { 2433 ret = -EINVAL; 2434 goto out; 2435 } 2436 2437 drm_framebuffer_remove(fb); 2438 2439 out: 2440 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 2441 return ret; 2442 } 2443 2444 /** 2445 * drm_mode_getfb - get FB info 2446 * @inode: inode from the ioctl 2447 * @filp: file * from the ioctl 2448 * @cmd: cmd from ioctl 2449 * @arg: arg from ioctl 2450 * 2451 * LOCKING: 2452 * Takes mode config lock. 2453 * 2454 * Lookup the FB given its ID and return info about it. 2455 * 2456 * Called by the user via ioctl. 2457 * 2458 * RETURNS: 2459 * Zero on success, errno on failure. 2460 */ 2461 int drm_mode_getfb(struct drm_device *dev, 2462 void *data, struct drm_file *file_priv) 2463 { 2464 struct drm_mode_fb_cmd *r = data; 2465 struct drm_mode_object *obj; 2466 struct drm_framebuffer *fb; 2467 int ret = 0; 2468 2469 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2470 return -EINVAL; 2471 2472 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 2473 obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB); 2474 if (!obj) { 2475 ret = -EINVAL; 2476 goto out; 2477 } 2478 fb = obj_to_fb(obj); 2479 2480 r->height = fb->height; 2481 r->width = fb->width; 2482 r->depth = fb->depth; 2483 r->bpp = fb->bits_per_pixel; 2484 r->pitch = fb->pitches[0]; 2485 fb->funcs->create_handle(fb, file_priv, &r->handle); 2486 2487 out: 2488 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 2489 return ret; 2490 } 2491 2492 int drm_mode_dirtyfb_ioctl(struct drm_device *dev, 2493 void *data, struct drm_file *file_priv) 2494 { 2495 struct drm_clip_rect __user *clips_ptr; 2496 struct drm_clip_rect *clips = NULL; 2497 struct drm_mode_fb_dirty_cmd *r = data; 2498 struct drm_mode_object *obj; 2499 struct drm_framebuffer *fb; 2500 unsigned flags; 2501 int num_clips; 2502 int ret; 2503 2504 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2505 return -EINVAL; 2506 2507 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 2508 obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB); 2509 if (!obj) { 2510 ret = -EINVAL; 2511 goto out_err1; 2512 } 2513 fb = obj_to_fb(obj); 2514 2515 num_clips = r->num_clips; 2516 clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; 2517 2518 if (!num_clips != !clips_ptr) { 2519 ret = -EINVAL; 2520 goto out_err1; 2521 } 2522 2523 flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; 2524 2525 /* If userspace annotates copy, clips must come in pairs */ 2526 if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { 2527 ret = -EINVAL; 2528 goto out_err1; 2529 } 2530 2531 if (num_clips && clips_ptr) { 2532 if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { 2533 ret = -EINVAL; 2534 goto out_err1; 2535 } 2536 clips = kmalloc(num_clips * sizeof(*clips), DRM_MEM_KMS, 2537 M_WAITOK | M_ZERO); 2538 if (!clips) { 2539 ret = -ENOMEM; 2540 goto out_err1; 2541 } 2542 2543 ret = copy_from_user(clips, clips_ptr, 2544 num_clips * sizeof(*clips)); 2545 if (ret) { 2546 ret = -EFAULT; 2547 goto out_err2; 2548 } 2549 } 2550 2551 if (fb->funcs->dirty) { 2552 ret = fb->funcs->dirty(fb, file_priv, flags, r->color, 2553 clips, num_clips); 2554 } else { 2555 ret = -ENOSYS; 2556 goto out_err2; 2557 } 2558 2559 out_err2: 2560 drm_free(clips, DRM_MEM_KMS); 2561 out_err1: 2562 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 2563 return ret; 2564 } 2565 2566 2567 /** 2568 * drm_fb_release - remove and free the FBs on this file 2569 * @filp: file * from the ioctl 2570 * 2571 * LOCKING: 2572 * Takes mode config lock. 2573 * 2574 * Destroy all the FBs associated with @filp. 2575 * 2576 * Called by the user via ioctl. 2577 * 2578 * RETURNS: 2579 * Zero on success, errno on failure. 2580 */ 2581 void drm_fb_release(struct drm_file *priv) 2582 { 2583 #if 1 2584 struct drm_device *dev = priv->dev; 2585 #else 2586 struct drm_device *dev = priv->minor->dev; 2587 #endif 2588 struct drm_framebuffer *fb, *tfb; 2589 2590 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 2591 list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { 2592 drm_framebuffer_remove(fb); 2593 } 2594 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 2595 } 2596 2597 /** 2598 * drm_mode_attachmode - add a mode to the user mode list 2599 * @dev: DRM device 2600 * @connector: connector to add the mode to 2601 * @mode: mode to add 2602 * 2603 * Add @mode to @connector's user mode list. 2604 */ 2605 static void drm_mode_attachmode(struct drm_device *dev, 2606 struct drm_connector *connector, 2607 struct drm_display_mode *mode) 2608 { 2609 list_add_tail(&mode->head, &connector->user_modes); 2610 } 2611 2612 int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc, 2613 const struct drm_display_mode *mode) 2614 { 2615 struct drm_connector *connector; 2616 int ret = 0; 2617 struct drm_display_mode *dup_mode, *next; 2618 LINUX_LIST_HEAD(list); 2619 2620 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 2621 if (!connector->encoder) 2622 continue; 2623 if (connector->encoder->crtc == crtc) { 2624 dup_mode = drm_mode_duplicate(dev, mode); 2625 if (!dup_mode) { 2626 ret = -ENOMEM; 2627 goto out; 2628 } 2629 list_add_tail(&dup_mode->head, &list); 2630 } 2631 } 2632 2633 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 2634 if (!connector->encoder) 2635 continue; 2636 if (connector->encoder->crtc == crtc) 2637 list_move_tail(list.next, &connector->user_modes); 2638 } 2639 2640 WARN_ON(!list_empty(&list)); 2641 2642 out: 2643 list_for_each_entry_safe(dup_mode, next, &list, head) 2644 drm_mode_destroy(dev, dup_mode); 2645 2646 return ret; 2647 } 2648 EXPORT_SYMBOL(drm_mode_attachmode_crtc); 2649 2650 static int drm_mode_detachmode(struct drm_device *dev, 2651 struct drm_connector *connector, 2652 struct drm_display_mode *mode) 2653 { 2654 int found = 0; 2655 int ret = 0; 2656 struct drm_display_mode *match_mode, *t; 2657 2658 list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) { 2659 if (drm_mode_equal(match_mode, mode)) { 2660 list_del(&match_mode->head); 2661 drm_mode_destroy(dev, match_mode); 2662 found = 1; 2663 break; 2664 } 2665 } 2666 2667 if (!found) 2668 ret = -EINVAL; 2669 2670 return ret; 2671 } 2672 2673 int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode) 2674 { 2675 struct drm_connector *connector; 2676 2677 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 2678 drm_mode_detachmode(dev, connector, mode); 2679 } 2680 return 0; 2681 } 2682 EXPORT_SYMBOL(drm_mode_detachmode_crtc); 2683 2684 /** 2685 * drm_fb_attachmode - Attach a user mode to an connector 2686 * @inode: inode from the ioctl 2687 * @filp: file * from the ioctl 2688 * @cmd: cmd from ioctl 2689 * @arg: arg from ioctl 2690 * 2691 * This attaches a user specified mode to an connector. 2692 * Called by the user via ioctl. 2693 * 2694 * RETURNS: 2695 * Zero on success, errno on failure. 2696 */ 2697 int drm_mode_attachmode_ioctl(struct drm_device *dev, 2698 void *data, struct drm_file *file_priv) 2699 { 2700 struct drm_mode_mode_cmd *mode_cmd = data; 2701 struct drm_connector *connector; 2702 struct drm_display_mode *mode; 2703 struct drm_mode_object *obj; 2704 struct drm_mode_modeinfo *umode = &mode_cmd->mode; 2705 int ret; 2706 2707 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2708 return -EINVAL; 2709 2710 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 2711 2712 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR); 2713 if (!obj) { 2714 ret = -EINVAL; 2715 goto out; 2716 } 2717 connector = obj_to_connector(obj); 2718 2719 mode = drm_mode_create(dev); 2720 if (!mode) { 2721 ret = -ENOMEM; 2722 goto out; 2723 } 2724 2725 ret = drm_crtc_convert_umode(mode, umode); 2726 if (ret) { 2727 DRM_DEBUG_KMS("Invalid mode\n"); 2728 drm_mode_destroy(dev, mode); 2729 goto out; 2730 } 2731 2732 drm_mode_attachmode(dev, connector, mode); 2733 out: 2734 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 2735 return ret; 2736 } 2737 2738 2739 /** 2740 * drm_fb_detachmode - Detach a user specified mode from an connector 2741 * @inode: inode from the ioctl 2742 * @filp: file * from the ioctl 2743 * @cmd: cmd from ioctl 2744 * @arg: arg from ioctl 2745 * 2746 * Called by the user via ioctl. 2747 * 2748 * RETURNS: 2749 * Zero on success, errno on failure. 2750 */ 2751 int drm_mode_detachmode_ioctl(struct drm_device *dev, 2752 void *data, struct drm_file *file_priv) 2753 { 2754 struct drm_mode_object *obj; 2755 struct drm_mode_mode_cmd *mode_cmd = data; 2756 struct drm_connector *connector; 2757 struct drm_display_mode mode; 2758 struct drm_mode_modeinfo *umode = &mode_cmd->mode; 2759 int ret; 2760 2761 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2762 return -EINVAL; 2763 2764 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 2765 2766 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR); 2767 if (!obj) { 2768 ret = -EINVAL; 2769 goto out; 2770 } 2771 connector = obj_to_connector(obj); 2772 2773 ret = drm_crtc_convert_umode(&mode, umode); 2774 if (ret) { 2775 DRM_DEBUG_KMS("Invalid mode\n"); 2776 goto out; 2777 } 2778 2779 ret = drm_mode_detachmode(dev, connector, &mode); 2780 out: 2781 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 2782 return ret; 2783 } 2784 2785 struct drm_property *drm_property_create(struct drm_device *dev, int flags, 2786 const char *name, int num_values) 2787 { 2788 struct drm_property *property = NULL; 2789 int ret; 2790 2791 property = kmalloc(sizeof(struct drm_property), DRM_MEM_KMS, 2792 M_WAITOK | M_ZERO); 2793 if (!property) 2794 return NULL; 2795 2796 if (num_values) { 2797 property->values = kmalloc(sizeof(uint64_t)*num_values, DRM_MEM_KMS, 2798 M_WAITOK | M_ZERO); 2799 if (!property->values) 2800 goto fail; 2801 } 2802 2803 ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); 2804 if (ret) 2805 goto fail; 2806 2807 property->flags = flags; 2808 property->num_values = num_values; 2809 INIT_LIST_HEAD(&property->enum_blob_list); 2810 2811 if (name) { 2812 strncpy(property->name, name, DRM_PROP_NAME_LEN); 2813 property->name[DRM_PROP_NAME_LEN-1] = '\0'; 2814 } 2815 2816 list_add_tail(&property->head, &dev->mode_config.property_list); 2817 return property; 2818 fail: 2819 drm_free(property->values, DRM_MEM_KMS); 2820 drm_free(property, DRM_MEM_KMS); 2821 return NULL; 2822 } 2823 EXPORT_SYMBOL(drm_property_create); 2824 2825 struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, 2826 const char *name, 2827 const struct drm_prop_enum_list *props, 2828 int num_values) 2829 { 2830 struct drm_property *property; 2831 int i, ret; 2832 2833 flags |= DRM_MODE_PROP_ENUM; 2834 2835 property = drm_property_create(dev, flags, name, num_values); 2836 if (!property) 2837 return NULL; 2838 2839 for (i = 0; i < num_values; i++) { 2840 ret = drm_property_add_enum(property, i, 2841 props[i].type, 2842 props[i].name); 2843 if (ret) { 2844 drm_property_destroy(dev, property); 2845 return NULL; 2846 } 2847 } 2848 2849 return property; 2850 } 2851 EXPORT_SYMBOL(drm_property_create_enum); 2852 2853 struct drm_property *drm_property_create_bitmask(struct drm_device *dev, 2854 int flags, const char *name, 2855 const struct drm_prop_enum_list *props, 2856 int num_values) 2857 { 2858 struct drm_property *property; 2859 int i, ret; 2860 2861 flags |= DRM_MODE_PROP_BITMASK; 2862 2863 property = drm_property_create(dev, flags, name, num_values); 2864 if (!property) 2865 return NULL; 2866 2867 for (i = 0; i < num_values; i++) { 2868 ret = drm_property_add_enum(property, i, 2869 props[i].type, 2870 props[i].name); 2871 if (ret) { 2872 drm_property_destroy(dev, property); 2873 return NULL; 2874 } 2875 } 2876 2877 return property; 2878 } 2879 EXPORT_SYMBOL(drm_property_create_bitmask); 2880 2881 struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, 2882 const char *name, 2883 uint64_t min, uint64_t max) 2884 { 2885 struct drm_property *property; 2886 2887 flags |= DRM_MODE_PROP_RANGE; 2888 2889 property = drm_property_create(dev, flags, name, 2); 2890 if (!property) 2891 return NULL; 2892 2893 property->values[0] = min; 2894 property->values[1] = max; 2895 2896 return property; 2897 } 2898 EXPORT_SYMBOL(drm_property_create_range); 2899 2900 int drm_property_add_enum(struct drm_property *property, int index, 2901 uint64_t value, const char *name) 2902 { 2903 struct drm_property_enum *prop_enum; 2904 2905 if (!(property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK))) 2906 return -EINVAL; 2907 2908 /* 2909 * Bitmask enum properties have the additional constraint of values 2910 * from 0 to 63 2911 */ 2912 if ((property->flags & DRM_MODE_PROP_BITMASK) && (value > 63)) 2913 return -EINVAL; 2914 2915 if (!list_empty(&property->enum_blob_list)) { 2916 list_for_each_entry(prop_enum, &property->enum_blob_list, head) { 2917 if (prop_enum->value == value) { 2918 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); 2919 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; 2920 return 0; 2921 } 2922 } 2923 } 2924 2925 prop_enum = kmalloc(sizeof(struct drm_property_enum), DRM_MEM_KMS, 2926 M_WAITOK | M_ZERO); 2927 if (!prop_enum) 2928 return -ENOMEM; 2929 2930 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); 2931 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; 2932 prop_enum->value = value; 2933 2934 property->values[index] = value; 2935 list_add_tail(&prop_enum->head, &property->enum_blob_list); 2936 return 0; 2937 } 2938 EXPORT_SYMBOL(drm_property_add_enum); 2939 2940 void drm_property_destroy(struct drm_device *dev, struct drm_property *property) 2941 { 2942 struct drm_property_enum *prop_enum, *pt; 2943 2944 list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) { 2945 list_del(&prop_enum->head); 2946 drm_free(prop_enum, DRM_MEM_KMS); 2947 } 2948 2949 if (property->num_values) 2950 drm_free(property->values, DRM_MEM_KMS); 2951 drm_mode_object_put(dev, &property->base); 2952 list_del(&property->head); 2953 drm_free(property, DRM_MEM_KMS); 2954 } 2955 EXPORT_SYMBOL(drm_property_destroy); 2956 2957 void drm_object_attach_property(struct drm_mode_object *obj, 2958 struct drm_property *property, 2959 uint64_t init_val) 2960 { 2961 int count = obj->properties->count; 2962 2963 if (count == DRM_OBJECT_MAX_PROPERTY) { 2964 WARN(1, "Failed to attach object property (type: 0x%x). Please " 2965 "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time " 2966 "you see this message on the same object type.\n", 2967 obj->type); 2968 return; 2969 } 2970 2971 obj->properties->ids[count] = property->base.id; 2972 obj->properties->values[count] = init_val; 2973 obj->properties->count++; 2974 } 2975 EXPORT_SYMBOL(drm_object_attach_property); 2976 2977 int drm_object_property_set_value(struct drm_mode_object *obj, 2978 struct drm_property *property, uint64_t val) 2979 { 2980 int i; 2981 2982 for (i = 0; i < obj->properties->count; i++) { 2983 if (obj->properties->ids[i] == property->base.id) { 2984 obj->properties->values[i] = val; 2985 return 0; 2986 } 2987 } 2988 2989 return -EINVAL; 2990 } 2991 EXPORT_SYMBOL(drm_object_property_set_value); 2992 2993 int drm_object_property_get_value(struct drm_mode_object *obj, 2994 struct drm_property *property, uint64_t *val) 2995 { 2996 int i; 2997 2998 for (i = 0; i < obj->properties->count; i++) { 2999 if (obj->properties->ids[i] == property->base.id) { 3000 *val = obj->properties->values[i]; 3001 return 0; 3002 } 3003 } 3004 3005 return -EINVAL; 3006 } 3007 EXPORT_SYMBOL(drm_object_property_get_value); 3008 3009 int drm_mode_getproperty_ioctl(struct drm_device *dev, 3010 void *data, struct drm_file *file_priv) 3011 { 3012 struct drm_mode_object *obj; 3013 struct drm_mode_get_property *out_resp = data; 3014 struct drm_property *property; 3015 int enum_count = 0; 3016 int blob_count = 0; 3017 int value_count = 0; 3018 int ret = 0, i; 3019 int copied; 3020 struct drm_property_enum *prop_enum; 3021 struct drm_mode_property_enum __user *enum_ptr; 3022 struct drm_property_blob *prop_blob; 3023 uint32_t __user *blob_id_ptr; 3024 uint64_t __user *values_ptr; 3025 uint32_t __user *blob_length_ptr; 3026 3027 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3028 return -EINVAL; 3029 3030 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 3031 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY); 3032 if (!obj) { 3033 ret = -EINVAL; 3034 goto done; 3035 } 3036 property = obj_to_property(obj); 3037 3038 if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) { 3039 list_for_each_entry(prop_enum, &property->enum_blob_list, head) 3040 enum_count++; 3041 } else if (property->flags & DRM_MODE_PROP_BLOB) { 3042 list_for_each_entry(prop_blob, &property->enum_blob_list, head) 3043 blob_count++; 3044 } 3045 3046 value_count = property->num_values; 3047 3048 strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); 3049 out_resp->name[DRM_PROP_NAME_LEN-1] = 0; 3050 out_resp->flags = property->flags; 3051 3052 if ((out_resp->count_values >= value_count) && value_count) { 3053 values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; 3054 for (i = 0; i < value_count; i++) { 3055 if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { 3056 ret = -EFAULT; 3057 goto done; 3058 } 3059 } 3060 } 3061 out_resp->count_values = value_count; 3062 3063 if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) { 3064 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { 3065 copied = 0; 3066 enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; 3067 list_for_each_entry(prop_enum, &property->enum_blob_list, head) { 3068 3069 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { 3070 ret = -EFAULT; 3071 goto done; 3072 } 3073 3074 if (copy_to_user(&enum_ptr[copied].name, 3075 &prop_enum->name, DRM_PROP_NAME_LEN)) { 3076 ret = -EFAULT; 3077 goto done; 3078 } 3079 copied++; 3080 } 3081 } 3082 out_resp->count_enum_blobs = enum_count; 3083 } 3084 3085 if (property->flags & DRM_MODE_PROP_BLOB) { 3086 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) { 3087 copied = 0; 3088 blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr; 3089 blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr; 3090 3091 list_for_each_entry(prop_blob, &property->enum_blob_list, head) { 3092 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) { 3093 ret = -EFAULT; 3094 goto done; 3095 } 3096 3097 if (put_user(prop_blob->length, blob_length_ptr + copied)) { 3098 ret = -EFAULT; 3099 goto done; 3100 } 3101 3102 copied++; 3103 } 3104 } 3105 out_resp->count_enum_blobs = blob_count; 3106 } 3107 done: 3108 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 3109 return ret; 3110 } 3111 3112 static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length, 3113 void *data) 3114 { 3115 struct drm_property_blob *blob; 3116 int ret; 3117 3118 if (!length || !data) 3119 return NULL; 3120 3121 blob = kmalloc(sizeof(struct drm_property_blob) + length, DRM_MEM_KMS, 3122 M_WAITOK | M_ZERO); 3123 if (!blob) 3124 return NULL; 3125 3126 ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); 3127 if (ret) { 3128 drm_free(blob, DRM_MEM_KMS); 3129 return NULL; 3130 } 3131 3132 blob->length = length; 3133 3134 memcpy(blob->data, data, length); 3135 3136 list_add_tail(&blob->head, &dev->mode_config.property_blob_list); 3137 return blob; 3138 } 3139 3140 static void drm_property_destroy_blob(struct drm_device *dev, 3141 struct drm_property_blob *blob) 3142 { 3143 drm_mode_object_put(dev, &blob->base); 3144 list_del(&blob->head); 3145 drm_free(blob, DRM_MEM_KMS); 3146 } 3147 3148 int drm_mode_getblob_ioctl(struct drm_device *dev, 3149 void *data, struct drm_file *file_priv) 3150 { 3151 struct drm_mode_object *obj; 3152 struct drm_mode_get_blob *out_resp = data; 3153 struct drm_property_blob *blob; 3154 int ret = 0; 3155 void __user *blob_ptr; 3156 3157 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3158 return -EINVAL; 3159 3160 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 3161 obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB); 3162 if (!obj) { 3163 ret = -EINVAL; 3164 goto done; 3165 } 3166 blob = obj_to_blob(obj); 3167 3168 if (out_resp->length == blob->length) { 3169 blob_ptr = (void __user *)(unsigned long)out_resp->data; 3170 if (copy_to_user(blob_ptr, blob->data, blob->length)){ 3171 ret = -EFAULT; 3172 goto done; 3173 } 3174 } 3175 out_resp->length = blob->length; 3176 3177 done: 3178 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 3179 return ret; 3180 } 3181 3182 int drm_mode_connector_update_edid_property(struct drm_connector *connector, 3183 struct edid *edid) 3184 { 3185 struct drm_device *dev = connector->dev; 3186 int ret, size; 3187 3188 if (connector->edid_blob_ptr) 3189 drm_property_destroy_blob(dev, connector->edid_blob_ptr); 3190 3191 /* Delete edid, when there is none. */ 3192 if (!edid) { 3193 connector->edid_blob_ptr = NULL; 3194 ret = drm_object_property_set_value(&connector->base, dev->mode_config.edid_property, 0); 3195 return ret; 3196 } 3197 3198 size = EDID_LENGTH * (1 + edid->extensions); 3199 connector->edid_blob_ptr = drm_property_create_blob(connector->dev, 3200 size, edid); 3201 if (!connector->edid_blob_ptr) 3202 return -EINVAL; 3203 3204 ret = drm_object_property_set_value(&connector->base, 3205 dev->mode_config.edid_property, 3206 connector->edid_blob_ptr->base.id); 3207 3208 return ret; 3209 } 3210 EXPORT_SYMBOL(drm_mode_connector_update_edid_property); 3211 3212 static bool drm_property_change_is_valid(struct drm_property *property, 3213 uint64_t value) 3214 { 3215 if (property->flags & DRM_MODE_PROP_IMMUTABLE) 3216 return false; 3217 if (property->flags & DRM_MODE_PROP_RANGE) { 3218 if (value < property->values[0] || value > property->values[1]) 3219 return false; 3220 return true; 3221 } else if (property->flags & DRM_MODE_PROP_BITMASK) { 3222 int i; 3223 uint64_t valid_mask = 0; 3224 for (i = 0; i < property->num_values; i++) 3225 valid_mask |= (1ULL << property->values[i]); 3226 return !(value & ~valid_mask); 3227 } else if (property->flags & DRM_MODE_PROP_BLOB) { 3228 /* Only the driver knows */ 3229 return true; 3230 } else { 3231 int i; 3232 for (i = 0; i < property->num_values; i++) 3233 if (property->values[i] == value) 3234 return true; 3235 return false; 3236 } 3237 } 3238 3239 int drm_mode_connector_property_set_ioctl(struct drm_device *dev, 3240 void *data, struct drm_file *file_priv) 3241 { 3242 struct drm_mode_connector_set_property *conn_set_prop = data; 3243 struct drm_mode_obj_set_property obj_set_prop = { 3244 .value = conn_set_prop->value, 3245 .prop_id = conn_set_prop->prop_id, 3246 .obj_id = conn_set_prop->connector_id, 3247 .obj_type = DRM_MODE_OBJECT_CONNECTOR 3248 }; 3249 3250 /* It does all the locking and checking we need */ 3251 return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv); 3252 } 3253 3254 static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, 3255 struct drm_property *property, 3256 uint64_t value) 3257 { 3258 int ret = -EINVAL; 3259 struct drm_connector *connector = obj_to_connector(obj); 3260 3261 /* Do DPMS ourselves */ 3262 if (property == connector->dev->mode_config.dpms_property) { 3263 if (connector->funcs->dpms) 3264 (*connector->funcs->dpms)(connector, (int)value); 3265 ret = 0; 3266 } else if (connector->funcs->set_property) 3267 ret = connector->funcs->set_property(connector, property, value); 3268 3269 /* store the property value if successful */ 3270 if (!ret) 3271 drm_object_property_set_value(&connector->base, property, value); 3272 return ret; 3273 } 3274 3275 static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, 3276 struct drm_property *property, 3277 uint64_t value) 3278 { 3279 int ret = -EINVAL; 3280 struct drm_crtc *crtc = obj_to_crtc(obj); 3281 3282 if (crtc->funcs->set_property) 3283 ret = crtc->funcs->set_property(crtc, property, value); 3284 if (!ret) 3285 drm_object_property_set_value(obj, property, value); 3286 3287 return ret; 3288 } 3289 3290 static int drm_mode_plane_set_obj_prop(struct drm_mode_object *obj, 3291 struct drm_property *property, 3292 uint64_t value) 3293 { 3294 int ret = -EINVAL; 3295 struct drm_plane *plane = obj_to_plane(obj); 3296 3297 if (plane->funcs->set_property) 3298 ret = plane->funcs->set_property(plane, property, value); 3299 if (!ret) 3300 drm_object_property_set_value(obj, property, value); 3301 3302 return ret; 3303 } 3304 3305 int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, 3306 struct drm_file *file_priv) 3307 { 3308 struct drm_mode_obj_get_properties *arg = data; 3309 struct drm_mode_object *obj; 3310 int ret = 0; 3311 int i; 3312 int copied = 0; 3313 int props_count = 0; 3314 uint32_t __user *props_ptr; 3315 uint64_t __user *prop_values_ptr; 3316 3317 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3318 return -EINVAL; 3319 3320 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 3321 3322 obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); 3323 if (!obj) { 3324 ret = -EINVAL; 3325 goto out; 3326 } 3327 if (!obj->properties) { 3328 ret = -EINVAL; 3329 goto out; 3330 } 3331 3332 props_count = obj->properties->count; 3333 3334 /* This ioctl is called twice, once to determine how much space is 3335 * needed, and the 2nd time to fill it. */ 3336 if ((arg->count_props >= props_count) && props_count) { 3337 copied = 0; 3338 props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr); 3339 prop_values_ptr = (uint64_t __user *)(unsigned long) 3340 (arg->prop_values_ptr); 3341 for (i = 0; i < props_count; i++) { 3342 if (put_user(obj->properties->ids[i], 3343 props_ptr + copied)) { 3344 ret = -EFAULT; 3345 goto out; 3346 } 3347 if (put_user(obj->properties->values[i], 3348 prop_values_ptr + copied)) { 3349 ret = -EFAULT; 3350 goto out; 3351 } 3352 copied++; 3353 } 3354 } 3355 arg->count_props = props_count; 3356 out: 3357 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 3358 return ret; 3359 } 3360 3361 int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, 3362 struct drm_file *file_priv) 3363 { 3364 struct drm_mode_obj_set_property *arg = data; 3365 struct drm_mode_object *arg_obj; 3366 struct drm_mode_object *prop_obj; 3367 struct drm_property *property; 3368 int ret = -EINVAL; 3369 int i; 3370 3371 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3372 return -EINVAL; 3373 3374 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 3375 3376 arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); 3377 if (!arg_obj) 3378 goto out; 3379 if (!arg_obj->properties) 3380 goto out; 3381 3382 for (i = 0; i < arg_obj->properties->count; i++) 3383 if (arg_obj->properties->ids[i] == arg->prop_id) 3384 break; 3385 3386 if (i == arg_obj->properties->count) 3387 goto out; 3388 3389 prop_obj = drm_mode_object_find(dev, arg->prop_id, 3390 DRM_MODE_OBJECT_PROPERTY); 3391 if (!prop_obj) 3392 goto out; 3393 property = obj_to_property(prop_obj); 3394 3395 if (!drm_property_change_is_valid(property, arg->value)) 3396 goto out; 3397 3398 switch (arg_obj->type) { 3399 case DRM_MODE_OBJECT_CONNECTOR: 3400 ret = drm_mode_connector_set_obj_prop(arg_obj, property, 3401 arg->value); 3402 break; 3403 case DRM_MODE_OBJECT_CRTC: 3404 ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value); 3405 break; 3406 case DRM_MODE_OBJECT_PLANE: 3407 ret = drm_mode_plane_set_obj_prop(arg_obj, property, arg->value); 3408 break; 3409 } 3410 3411 out: 3412 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 3413 return ret; 3414 } 3415 3416 int drm_mode_connector_attach_encoder(struct drm_connector *connector, 3417 struct drm_encoder *encoder) 3418 { 3419 int i; 3420 3421 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 3422 if (connector->encoder_ids[i] == 0) { 3423 connector->encoder_ids[i] = encoder->base.id; 3424 return 0; 3425 } 3426 } 3427 return -ENOMEM; 3428 } 3429 EXPORT_SYMBOL(drm_mode_connector_attach_encoder); 3430 3431 void drm_mode_connector_detach_encoder(struct drm_connector *connector, 3432 struct drm_encoder *encoder) 3433 { 3434 int i; 3435 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 3436 if (connector->encoder_ids[i] == encoder->base.id) { 3437 connector->encoder_ids[i] = 0; 3438 if (connector->encoder == encoder) 3439 connector->encoder = NULL; 3440 break; 3441 } 3442 } 3443 } 3444 EXPORT_SYMBOL(drm_mode_connector_detach_encoder); 3445 3446 int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, 3447 int gamma_size) 3448 { 3449 crtc->gamma_size = gamma_size; 3450 3451 crtc->gamma_store = kmalloc(gamma_size * sizeof(uint16_t) * 3, 3452 DRM_MEM_KMS, M_WAITOK | M_ZERO); 3453 if (!crtc->gamma_store) { 3454 crtc->gamma_size = 0; 3455 return -ENOMEM; 3456 } 3457 3458 return 0; 3459 } 3460 EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); 3461 3462 int drm_mode_gamma_set_ioctl(struct drm_device *dev, 3463 void *data, struct drm_file *file_priv) 3464 { 3465 struct drm_mode_crtc_lut *crtc_lut = data; 3466 struct drm_mode_object *obj; 3467 struct drm_crtc *crtc; 3468 void *r_base, *g_base, *b_base; 3469 int size; 3470 int ret = 0; 3471 3472 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3473 return -EINVAL; 3474 3475 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 3476 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); 3477 if (!obj) { 3478 ret = -EINVAL; 3479 goto out; 3480 } 3481 crtc = obj_to_crtc(obj); 3482 3483 if (crtc->funcs->gamma_set == NULL) { 3484 ret = -ENOSYS; 3485 goto out; 3486 } 3487 3488 /* memcpy into gamma store */ 3489 if (crtc_lut->gamma_size != crtc->gamma_size) { 3490 ret = -EINVAL; 3491 goto out; 3492 } 3493 3494 size = crtc_lut->gamma_size * (sizeof(uint16_t)); 3495 r_base = crtc->gamma_store; 3496 if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { 3497 ret = -EFAULT; 3498 goto out; 3499 } 3500 3501 g_base = (char *)r_base + size; 3502 if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { 3503 ret = -EFAULT; 3504 goto out; 3505 } 3506 3507 b_base = (char *)g_base + size; 3508 if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { 3509 ret = -EFAULT; 3510 goto out; 3511 } 3512 3513 crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); 3514 3515 out: 3516 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 3517 return ret; 3518 3519 } 3520 3521 int drm_mode_gamma_get_ioctl(struct drm_device *dev, 3522 void *data, struct drm_file *file_priv) 3523 { 3524 struct drm_mode_crtc_lut *crtc_lut = data; 3525 struct drm_mode_object *obj; 3526 struct drm_crtc *crtc; 3527 void *r_base, *g_base, *b_base; 3528 int size; 3529 int ret = 0; 3530 3531 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3532 return -EINVAL; 3533 3534 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 3535 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); 3536 if (!obj) { 3537 ret = -EINVAL; 3538 goto out; 3539 } 3540 crtc = obj_to_crtc(obj); 3541 3542 /* memcpy into gamma store */ 3543 if (crtc_lut->gamma_size != crtc->gamma_size) { 3544 ret = -EINVAL; 3545 goto out; 3546 } 3547 3548 size = crtc_lut->gamma_size * (sizeof(uint16_t)); 3549 r_base = crtc->gamma_store; 3550 if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { 3551 ret = -EFAULT; 3552 goto out; 3553 } 3554 3555 g_base = (char *)r_base + size; 3556 if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { 3557 ret = -EFAULT; 3558 goto out; 3559 } 3560 3561 b_base = (char *)g_base + size; 3562 if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { 3563 ret = -EFAULT; 3564 goto out; 3565 } 3566 out: 3567 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 3568 return ret; 3569 } 3570 3571 static void 3572 drm_kms_free(void *arg) 3573 { 3574 3575 drm_free(arg, DRM_MEM_KMS); 3576 } 3577 3578 int drm_mode_page_flip_ioctl(struct drm_device *dev, 3579 void *data, struct drm_file *file_priv) 3580 { 3581 struct drm_mode_crtc_page_flip *page_flip = data; 3582 struct drm_mode_object *obj; 3583 struct drm_crtc *crtc; 3584 struct drm_framebuffer *fb; 3585 struct drm_pending_vblank_event *e = NULL; 3586 int hdisplay, vdisplay; 3587 int ret = -EINVAL; 3588 3589 if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS || 3590 page_flip->reserved != 0) 3591 return -EINVAL; 3592 3593 lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE); 3594 obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC); 3595 if (!obj) 3596 goto out; 3597 crtc = obj_to_crtc(obj); 3598 3599 if (crtc->fb == NULL) { 3600 /* The framebuffer is currently unbound, presumably 3601 * due to a hotplug event, that userspace has not 3602 * yet discovered. 3603 */ 3604 ret = -EBUSY; 3605 goto out; 3606 } 3607 3608 if (crtc->funcs->page_flip == NULL) 3609 goto out; 3610 3611 obj = drm_mode_object_find(dev, page_flip->fb_id, DRM_MODE_OBJECT_FB); 3612 if (!obj) 3613 goto out; 3614 fb = obj_to_fb(obj); 3615 3616 hdisplay = crtc->mode.hdisplay; 3617 vdisplay = crtc->mode.vdisplay; 3618 3619 if (crtc->invert_dimensions) 3620 swap(hdisplay, vdisplay); 3621 3622 if (hdisplay > fb->width || 3623 vdisplay > fb->height || 3624 crtc->x > fb->width - hdisplay || 3625 crtc->y > fb->height - vdisplay) { 3626 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n", 3627 fb->width, fb->height, hdisplay, vdisplay, crtc->x, crtc->y, 3628 crtc->invert_dimensions ? " (inverted)" : ""); 3629 ret = -ENOSPC; 3630 goto out; 3631 } 3632 3633 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { 3634 ret = -ENOMEM; 3635 lockmgr(&dev->event_lock, LK_EXCLUSIVE); 3636 if (file_priv->event_space < sizeof e->event) { 3637 lockmgr(&dev->event_lock, LK_RELEASE); 3638 goto out; 3639 } 3640 file_priv->event_space -= sizeof e->event; 3641 lockmgr(&dev->event_lock, LK_RELEASE); 3642 3643 e = kmalloc(sizeof *e, DRM_MEM_KMS, M_WAITOK | M_ZERO); 3644 if (e == NULL) { 3645 lockmgr(&dev->event_lock, LK_EXCLUSIVE); 3646 file_priv->event_space += sizeof e->event; 3647 lockmgr(&dev->event_lock, LK_RELEASE); 3648 goto out; 3649 } 3650 3651 e->event.base.type = DRM_EVENT_FLIP_COMPLETE; 3652 e->event.base.length = sizeof e->event; 3653 e->event.user_data = page_flip->user_data; 3654 e->base.event = &e->event.base; 3655 e->base.file_priv = file_priv; 3656 e->base.destroy = 3657 (void (*) (struct drm_pending_event *))drm_kms_free; 3658 } 3659 3660 ret = crtc->funcs->page_flip(crtc, fb, e); 3661 if (ret) { 3662 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { 3663 lockmgr(&dev->event_lock, LK_EXCLUSIVE); 3664 file_priv->event_space += sizeof e->event; 3665 lockmgr(&dev->event_lock, LK_RELEASE); 3666 drm_free(e, DRM_MEM_KMS); 3667 } 3668 } 3669 3670 out: 3671 lockmgr(&dev->mode_config.mutex, LK_RELEASE); 3672 return ret; 3673 } 3674 3675 void drm_mode_config_reset(struct drm_device *dev) 3676 { 3677 struct drm_crtc *crtc; 3678 struct drm_encoder *encoder; 3679 struct drm_connector *connector; 3680 3681 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) 3682 if (crtc->funcs->reset) 3683 crtc->funcs->reset(crtc); 3684 3685 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) 3686 if (encoder->funcs->reset) 3687 encoder->funcs->reset(encoder); 3688 3689 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 3690 connector->status = connector_status_unknown; 3691 3692 if (connector->funcs->reset) 3693 connector->funcs->reset(connector); 3694 } 3695 } 3696 EXPORT_SYMBOL(drm_mode_config_reset); 3697 3698 int drm_mode_create_dumb_ioctl(struct drm_device *dev, 3699 void *data, struct drm_file *file_priv) 3700 { 3701 struct drm_mode_create_dumb *args = data; 3702 3703 if (!dev->driver->dumb_create) 3704 return -ENOSYS; 3705 return dev->driver->dumb_create(file_priv, dev, args); 3706 } 3707 3708 int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, 3709 void *data, struct drm_file *file_priv) 3710 { 3711 struct drm_mode_map_dumb *args = data; 3712 3713 /* call driver ioctl to get mmap offset */ 3714 if (!dev->driver->dumb_map_offset) 3715 return -ENOSYS; 3716 3717 return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); 3718 } 3719 3720 int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, 3721 void *data, struct drm_file *file_priv) 3722 { 3723 struct drm_mode_destroy_dumb *args = data; 3724 3725 if (!dev->driver->dumb_destroy) 3726 return -ENOSYS; 3727 3728 return dev->driver->dumb_destroy(file_priv, dev, args->handle); 3729 } 3730 3731 /* 3732 * Just need to support RGB formats here for compat with code that doesn't 3733 * use pixel formats directly yet. 3734 */ 3735 void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, 3736 int *bpp) 3737 { 3738 switch (format) { 3739 case DRM_FORMAT_RGB332: 3740 case DRM_FORMAT_BGR233: 3741 *depth = 8; 3742 *bpp = 8; 3743 break; 3744 case DRM_FORMAT_XRGB1555: 3745 case DRM_FORMAT_XBGR1555: 3746 case DRM_FORMAT_RGBX5551: 3747 case DRM_FORMAT_BGRX5551: 3748 case DRM_FORMAT_ARGB1555: 3749 case DRM_FORMAT_ABGR1555: 3750 case DRM_FORMAT_RGBA5551: 3751 case DRM_FORMAT_BGRA5551: 3752 *depth = 15; 3753 *bpp = 16; 3754 break; 3755 case DRM_FORMAT_RGB565: 3756 case DRM_FORMAT_BGR565: 3757 *depth = 16; 3758 *bpp = 16; 3759 break; 3760 case DRM_FORMAT_RGB888: 3761 case DRM_FORMAT_BGR888: 3762 *depth = 24; 3763 *bpp = 24; 3764 break; 3765 case DRM_FORMAT_XRGB8888: 3766 case DRM_FORMAT_XBGR8888: 3767 case DRM_FORMAT_RGBX8888: 3768 case DRM_FORMAT_BGRX8888: 3769 *depth = 24; 3770 *bpp = 32; 3771 break; 3772 case DRM_FORMAT_XRGB2101010: 3773 case DRM_FORMAT_XBGR2101010: 3774 case DRM_FORMAT_RGBX1010102: 3775 case DRM_FORMAT_BGRX1010102: 3776 case DRM_FORMAT_ARGB2101010: 3777 case DRM_FORMAT_ABGR2101010: 3778 case DRM_FORMAT_RGBA1010102: 3779 case DRM_FORMAT_BGRA1010102: 3780 *depth = 30; 3781 *bpp = 32; 3782 break; 3783 case DRM_FORMAT_ARGB8888: 3784 case DRM_FORMAT_ABGR8888: 3785 case DRM_FORMAT_RGBA8888: 3786 case DRM_FORMAT_BGRA8888: 3787 *depth = 32; 3788 *bpp = 32; 3789 break; 3790 default: 3791 DRM_DEBUG_KMS("unsupported pixel format\n"); 3792 *depth = 0; 3793 *bpp = 0; 3794 break; 3795 } 3796 } 3797 EXPORT_SYMBOL(drm_fb_get_bpp_depth); 3798 3799 /** 3800 * drm_format_num_planes - get the number of planes for format 3801 * @format: pixel format (DRM_FORMAT_*) 3802 * 3803 * RETURNS: 3804 * The number of planes used by the specified pixel format. 3805 */ 3806 int drm_format_num_planes(uint32_t format) 3807 { 3808 switch (format) { 3809 case DRM_FORMAT_YUV410: 3810 case DRM_FORMAT_YVU410: 3811 case DRM_FORMAT_YUV411: 3812 case DRM_FORMAT_YVU411: 3813 case DRM_FORMAT_YUV420: 3814 case DRM_FORMAT_YVU420: 3815 case DRM_FORMAT_YUV422: 3816 case DRM_FORMAT_YVU422: 3817 case DRM_FORMAT_YUV444: 3818 case DRM_FORMAT_YVU444: 3819 return 3; 3820 case DRM_FORMAT_NV12: 3821 case DRM_FORMAT_NV21: 3822 case DRM_FORMAT_NV16: 3823 case DRM_FORMAT_NV61: 3824 case DRM_FORMAT_NV24: 3825 case DRM_FORMAT_NV42: 3826 return 2; 3827 default: 3828 return 1; 3829 } 3830 } 3831 EXPORT_SYMBOL(drm_format_num_planes); 3832 3833 /** 3834 * drm_format_plane_cpp - determine the bytes per pixel value 3835 * @format: pixel format (DRM_FORMAT_*) 3836 * @plane: plane index 3837 * 3838 * RETURNS: 3839 * The bytes per pixel value for the specified plane. 3840 */ 3841 int drm_format_plane_cpp(uint32_t format, int plane) 3842 { 3843 unsigned int depth; 3844 int bpp; 3845 3846 if (plane >= drm_format_num_planes(format)) 3847 return 0; 3848 3849 switch (format) { 3850 case DRM_FORMAT_YUYV: 3851 case DRM_FORMAT_YVYU: 3852 case DRM_FORMAT_UYVY: 3853 case DRM_FORMAT_VYUY: 3854 return 2; 3855 case DRM_FORMAT_NV12: 3856 case DRM_FORMAT_NV21: 3857 case DRM_FORMAT_NV16: 3858 case DRM_FORMAT_NV61: 3859 case DRM_FORMAT_NV24: 3860 case DRM_FORMAT_NV42: 3861 return plane ? 2 : 1; 3862 case DRM_FORMAT_YUV410: 3863 case DRM_FORMAT_YVU410: 3864 case DRM_FORMAT_YUV411: 3865 case DRM_FORMAT_YVU411: 3866 case DRM_FORMAT_YUV420: 3867 case DRM_FORMAT_YVU420: 3868 case DRM_FORMAT_YUV422: 3869 case DRM_FORMAT_YVU422: 3870 case DRM_FORMAT_YUV444: 3871 case DRM_FORMAT_YVU444: 3872 return 1; 3873 default: 3874 drm_fb_get_bpp_depth(format, &depth, &bpp); 3875 return bpp >> 3; 3876 } 3877 } 3878 EXPORT_SYMBOL(drm_format_plane_cpp); 3879 3880 /** 3881 * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor 3882 * @format: pixel format (DRM_FORMAT_*) 3883 * 3884 * RETURNS: 3885 * The horizontal chroma subsampling factor for the 3886 * specified pixel format. 3887 */ 3888 int drm_format_horz_chroma_subsampling(uint32_t format) 3889 { 3890 switch (format) { 3891 case DRM_FORMAT_YUV411: 3892 case DRM_FORMAT_YVU411: 3893 case DRM_FORMAT_YUV410: 3894 case DRM_FORMAT_YVU410: 3895 return 4; 3896 case DRM_FORMAT_YUYV: 3897 case DRM_FORMAT_YVYU: 3898 case DRM_FORMAT_UYVY: 3899 case DRM_FORMAT_VYUY: 3900 case DRM_FORMAT_NV12: 3901 case DRM_FORMAT_NV21: 3902 case DRM_FORMAT_NV16: 3903 case DRM_FORMAT_NV61: 3904 case DRM_FORMAT_YUV422: 3905 case DRM_FORMAT_YVU422: 3906 case DRM_FORMAT_YUV420: 3907 case DRM_FORMAT_YVU420: 3908 return 2; 3909 default: 3910 return 1; 3911 } 3912 } 3913 EXPORT_SYMBOL(drm_format_horz_chroma_subsampling); 3914 3915 /** 3916 * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor 3917 * @format: pixel format (DRM_FORMAT_*) 3918 * 3919 * RETURNS: 3920 * The vertical chroma subsampling factor for the 3921 * specified pixel format. 3922 */ 3923 int drm_format_vert_chroma_subsampling(uint32_t format) 3924 { 3925 switch (format) { 3926 case DRM_FORMAT_YUV410: 3927 case DRM_FORMAT_YVU410: 3928 return 4; 3929 case DRM_FORMAT_YUV420: 3930 case DRM_FORMAT_YVU420: 3931 case DRM_FORMAT_NV12: 3932 case DRM_FORMAT_NV21: 3933 return 2; 3934 default: 3935 return 1; 3936 } 3937 } 3938 EXPORT_SYMBOL(drm_format_vert_chroma_subsampling); 3939