drm_crtc.c revision 1.1.1.1.2.17
1 /* 2 * Copyright (c) 2006-2008 Intel Corporation 3 * Copyright (c) 2007 Dave Airlie <airlied (at) 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 (at) anholt.net> 29 * Dave Airlie <airlied (at) linux.ie> 30 * Jesse Barnes <jesse.barnes (at) intel.com> 31 */ 32 #include <linux/err.h> 33 #include <linux/spinlock.h> 34 #include <linux/list.h> 35 #include <linux/slab.h> 36 #include <linux/export.h> 37 #include <asm/bug.h> 38 #include <drm/drmP.h> 39 #include <drm/drm_crtc.h> 40 #include <drm/drm_edid.h> 41 #include <drm/drm_fourcc.h> 42 43 /* Avoid boilerplate. I'm tired of typing. */ 44 #ifdef __NetBSD__ 45 /* XXX Does nobody build this code with -Wwrite-strings? */ 46 #define DRM_ENUM_NAME_FN(fnname, list) \ 47 const char *fnname(int val) \ 48 { \ 49 int i; \ 50 for (i = 0; i < ARRAY_SIZE(list); i++) { \ 51 if (list[i].type == val) \ 52 return list[i].name; \ 53 } \ 54 return "(unknown)"; \ 55 } 56 #else 57 #define DRM_ENUM_NAME_FN(fnname, list) \ 58 char *fnname(int val) \ 59 { \ 60 int i; \ 61 for (i = 0; i < ARRAY_SIZE(list); i++) { \ 62 if (list[i].type == val) \ 63 return list[i].name; \ 64 } \ 65 return "(unknown)"; \ 66 } 67 #endif 68 69 /* 70 * Global properties 71 */ 72 static struct drm_prop_enum_list drm_dpms_enum_list[] = 73 { { DRM_MODE_DPMS_ON, "On" }, 74 { DRM_MODE_DPMS_STANDBY, "Standby" }, 75 { DRM_MODE_DPMS_SUSPEND, "Suspend" }, 76 { DRM_MODE_DPMS_OFF, "Off" } 77 }; 78 79 DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) 80 81 /* 82 * Optional properties 83 */ 84 static struct drm_prop_enum_list drm_scaling_mode_enum_list[] = 85 { 86 { DRM_MODE_SCALE_NONE, "None" }, 87 { DRM_MODE_SCALE_FULLSCREEN, "Full" }, 88 { DRM_MODE_SCALE_CENTER, "Center" }, 89 { DRM_MODE_SCALE_ASPECT, "Full aspect" }, 90 }; 91 92 static struct drm_prop_enum_list drm_dithering_mode_enum_list[] = 93 { 94 { DRM_MODE_DITHERING_OFF, "Off" }, 95 { DRM_MODE_DITHERING_ON, "On" }, 96 { DRM_MODE_DITHERING_AUTO, "Automatic" }, 97 }; 98 99 /* 100 * Non-global properties, but "required" for certain connectors. 101 */ 102 static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = 103 { 104 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ 105 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ 106 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ 107 }; 108 109 DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) 110 111 static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = 112 { 113 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ 114 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ 115 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ 116 }; 117 118 DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, 119 drm_dvi_i_subconnector_enum_list) 120 121 static struct drm_prop_enum_list drm_tv_select_enum_list[] = 122 { 123 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ 124 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ 125 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ 126 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ 127 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ 128 }; 129 130 DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) 131 132 static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = 133 { 134 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ 135 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ 136 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ 137 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ 138 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ 139 }; 140 141 DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, 142 drm_tv_subconnector_enum_list) 143 144 static struct drm_prop_enum_list drm_dirty_info_enum_list[] = { 145 { DRM_MODE_DIRTY_OFF, "Off" }, 146 { DRM_MODE_DIRTY_ON, "On" }, 147 { DRM_MODE_DIRTY_ANNOTATE, "Annotate" }, 148 }; 149 150 #ifndef __NetBSD__ 151 /* XXX Doesn't seem to be used... */ 152 DRM_ENUM_NAME_FN(drm_get_dirty_info_name, 153 drm_dirty_info_enum_list) 154 #endif 155 156 struct drm_conn_prop_enum_list { 157 int type; 158 #ifdef __NetBSD__ 159 const char *name; 160 #else 161 char *name; 162 #endif 163 int count; 164 }; 165 166 /* 167 * Connector and encoder types. 168 */ 169 static struct drm_conn_prop_enum_list drm_connector_enum_list[] = 170 { { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 }, 171 { DRM_MODE_CONNECTOR_VGA, "VGA", 0 }, 172 { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 }, 173 { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 }, 174 { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 }, 175 { DRM_MODE_CONNECTOR_Composite, "Composite", 0 }, 176 { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 }, 177 { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 }, 178 { DRM_MODE_CONNECTOR_Component, "Component", 0 }, 179 { DRM_MODE_CONNECTOR_9PinDIN, "DIN", 0 }, 180 { DRM_MODE_CONNECTOR_DisplayPort, "DP", 0 }, 181 { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A", 0 }, 182 { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B", 0 }, 183 { DRM_MODE_CONNECTOR_TV, "TV", 0 }, 184 { DRM_MODE_CONNECTOR_eDP, "eDP", 0 }, 185 { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual", 0}, 186 }; 187 188 static struct drm_prop_enum_list drm_encoder_enum_list[] = 189 { { DRM_MODE_ENCODER_NONE, "None" }, 190 { DRM_MODE_ENCODER_DAC, "DAC" }, 191 { DRM_MODE_ENCODER_TMDS, "TMDS" }, 192 { DRM_MODE_ENCODER_LVDS, "LVDS" }, 193 { DRM_MODE_ENCODER_TVDAC, "TV" }, 194 { DRM_MODE_ENCODER_VIRTUAL, "Virtual" }, 195 }; 196 197 char *drm_get_encoder_name(struct drm_encoder *encoder) 198 { 199 static char buf[32]; 200 201 snprintf(buf, 32, "%s-%d", 202 drm_encoder_enum_list[encoder->encoder_type].name, 203 encoder->base.id); 204 return buf; 205 } 206 EXPORT_SYMBOL(drm_get_encoder_name); 207 208 char *drm_get_connector_name(struct drm_connector *connector) 209 { 210 static char buf[32]; 211 212 snprintf(buf, 32, "%s-%d", 213 drm_connector_enum_list[connector->connector_type].name, 214 connector->connector_type_id); 215 return buf; 216 } 217 EXPORT_SYMBOL(drm_get_connector_name); 218 219 #ifndef __NetBSD__ 220 char *drm_get_connector_status_name(enum drm_connector_status status) 221 { 222 if (status == connector_status_connected) 223 return "connected"; 224 else if (status == connector_status_disconnected) 225 return "disconnected"; 226 else 227 return "unknown"; 228 } 229 #endif 230 231 /** 232 * drm_mode_object_get - allocate a new identifier 233 * @dev: DRM device 234 * @ptr: object pointer, used to generate unique ID 235 * @type: object type 236 * 237 * LOCKING: 238 * 239 * Create a unique identifier based on @ptr in @dev's identifier space. Used 240 * for tracking modes, CRTCs and connectors. 241 * 242 * RETURNS: 243 * New unique (relative to other objects in @dev) integer identifier for the 244 * object. 245 */ 246 static int drm_mode_object_get(struct drm_device *dev, 247 struct drm_mode_object *obj, uint32_t obj_type) 248 { 249 int new_id = 0; 250 int ret; 251 252 again: 253 if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) { 254 DRM_ERROR("Ran out memory getting a mode number\n"); 255 return -ENOMEM; 256 } 257 258 mutex_lock(&dev->mode_config.idr_mutex); 259 ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id); 260 mutex_unlock(&dev->mode_config.idr_mutex); 261 if (ret == -EAGAIN) 262 goto again; 263 else if (ret) 264 return ret; 265 266 obj->id = new_id; 267 obj->type = obj_type; 268 return 0; 269 } 270 271 /** 272 * drm_mode_object_put - free an identifer 273 * @dev: DRM device 274 * @id: ID to free 275 * 276 * LOCKING: 277 * Caller must hold DRM mode_config lock. 278 * 279 * Free @id from @dev's unique identifier pool. 280 */ 281 static void drm_mode_object_put(struct drm_device *dev, 282 struct drm_mode_object *object) 283 { 284 mutex_lock(&dev->mode_config.idr_mutex); 285 idr_remove(&dev->mode_config.crtc_idr, object->id); 286 mutex_unlock(&dev->mode_config.idr_mutex); 287 } 288 289 struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, 290 uint32_t id, uint32_t type) 291 { 292 struct drm_mode_object *obj = NULL; 293 294 mutex_lock(&dev->mode_config.idr_mutex); 295 obj = idr_find(&dev->mode_config.crtc_idr, id); 296 if (!obj || (obj->type != type) || (obj->id != id)) 297 obj = NULL; 298 mutex_unlock(&dev->mode_config.idr_mutex); 299 300 return obj; 301 } 302 EXPORT_SYMBOL(drm_mode_object_find); 303 304 /** 305 * drm_framebuffer_init - initialize a framebuffer 306 * @dev: DRM device 307 * 308 * LOCKING: 309 * Caller must hold mode config lock. 310 * 311 * Allocates an ID for the framebuffer's parent mode object, sets its mode 312 * functions & device file and adds it to the master fd list. 313 * 314 * RETURNS: 315 * Zero on success, error code on failure. 316 */ 317 int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, 318 const struct drm_framebuffer_funcs *funcs) 319 { 320 int ret; 321 322 kref_init(&fb->refcount); 323 324 ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB); 325 if (ret) 326 return ret; 327 328 fb->dev = dev; 329 fb->funcs = funcs; 330 dev->mode_config.num_fb++; 331 list_add(&fb->head, &dev->mode_config.fb_list); 332 333 return 0; 334 } 335 EXPORT_SYMBOL(drm_framebuffer_init); 336 337 static void drm_framebuffer_free(struct kref *kref) 338 { 339 struct drm_framebuffer *fb = 340 container_of(kref, struct drm_framebuffer, refcount); 341 fb->funcs->destroy(fb); 342 } 343 344 /** 345 * drm_framebuffer_unreference - unref a framebuffer 346 * 347 * LOCKING: 348 * Caller must hold mode config lock. 349 */ 350 void drm_framebuffer_unreference(struct drm_framebuffer *fb) 351 { 352 struct drm_device *dev = fb->dev; 353 DRM_DEBUG("FB ID: %d\n", fb->base.id); 354 WARN_ON(!mutex_is_locked(&dev->mode_config.mutex)); 355 kref_put(&fb->refcount, drm_framebuffer_free); 356 } 357 EXPORT_SYMBOL(drm_framebuffer_unreference); 358 359 /** 360 * drm_framebuffer_reference - incr the fb refcnt 361 */ 362 void drm_framebuffer_reference(struct drm_framebuffer *fb) 363 { 364 DRM_DEBUG("FB ID: %d\n", fb->base.id); 365 kref_get(&fb->refcount); 366 } 367 EXPORT_SYMBOL(drm_framebuffer_reference); 368 369 /** 370 * drm_framebuffer_cleanup - remove a framebuffer object 371 * @fb: framebuffer to remove 372 * 373 * LOCKING: 374 * Caller must hold mode config lock. 375 * 376 * Scans all the CRTCs in @dev's mode_config. If they're using @fb, removes 377 * it, setting it to NULL. 378 */ 379 void drm_framebuffer_cleanup(struct drm_framebuffer *fb) 380 { 381 struct drm_device *dev = fb->dev; 382 /* 383 * This could be moved to drm_framebuffer_remove(), but for 384 * debugging is nice to keep around the list of fb's that are 385 * no longer associated w/ a drm_file but are not unreferenced 386 * yet. (i915 and omapdrm have debugfs files which will show 387 * this.) 388 */ 389 drm_mode_object_put(dev, &fb->base); 390 list_del(&fb->head); 391 dev->mode_config.num_fb--; 392 } 393 EXPORT_SYMBOL(drm_framebuffer_cleanup); 394 395 /** 396 * drm_framebuffer_remove - remove and unreference a framebuffer object 397 * @fb: framebuffer to remove 398 * 399 * LOCKING: 400 * Caller must hold mode config lock. 401 * 402 * Scans all the CRTCs and planes in @dev's mode_config. If they're 403 * using @fb, removes it, setting it to NULL. 404 */ 405 void drm_framebuffer_remove(struct drm_framebuffer *fb) 406 { 407 struct drm_device *dev = fb->dev; 408 struct drm_crtc *crtc; 409 struct drm_plane *plane; 410 struct drm_mode_set set; 411 int ret; 412 413 /* remove from any CRTC */ 414 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 415 if (crtc->fb == fb) { 416 /* should turn off the crtc */ 417 memset(&set, 0, sizeof(struct drm_mode_set)); 418 set.crtc = crtc; 419 set.fb = NULL; 420 ret = crtc->funcs->set_config(&set); 421 if (ret) 422 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); 423 } 424 } 425 426 list_for_each_entry(plane, &dev->mode_config.plane_list, head) { 427 if (plane->fb == fb) { 428 /* should turn off the crtc */ 429 ret = plane->funcs->disable_plane(plane); 430 if (ret) 431 DRM_ERROR("failed to disable plane with busy fb\n"); 432 /* disconnect the plane from the fb and crtc: */ 433 plane->fb = NULL; 434 plane->crtc = NULL; 435 } 436 } 437 438 list_del(&fb->filp_head); 439 440 drm_framebuffer_unreference(fb); 441 } 442 EXPORT_SYMBOL(drm_framebuffer_remove); 443 444 /** 445 * drm_crtc_init - Initialise a new CRTC object 446 * @dev: DRM device 447 * @crtc: CRTC object to init 448 * @funcs: callbacks for the new CRTC 449 * 450 * LOCKING: 451 * Takes mode_config lock. 452 * 453 * Inits a new object created as base part of an driver crtc object. 454 * 455 * RETURNS: 456 * Zero on success, error code on failure. 457 */ 458 int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc, 459 const struct drm_crtc_funcs *funcs) 460 { 461 int ret; 462 463 crtc->dev = dev; 464 crtc->funcs = funcs; 465 crtc->invert_dimensions = false; 466 467 mutex_lock(&dev->mode_config.mutex); 468 469 ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); 470 if (ret) 471 goto out; 472 473 crtc->base.properties = &crtc->properties; 474 475 list_add_tail(&crtc->head, &dev->mode_config.crtc_list); 476 dev->mode_config.num_crtc++; 477 478 out: 479 mutex_unlock(&dev->mode_config.mutex); 480 481 return ret; 482 } 483 EXPORT_SYMBOL(drm_crtc_init); 484 485 /** 486 * drm_crtc_cleanup - Cleans up the core crtc usage. 487 * @crtc: CRTC to cleanup 488 * 489 * LOCKING: 490 * Caller must hold mode config lock. 491 * 492 * Cleanup @crtc. Removes from drm modesetting space 493 * does NOT free object, caller does that. 494 */ 495 void drm_crtc_cleanup(struct drm_crtc *crtc) 496 { 497 struct drm_device *dev = crtc->dev; 498 499 kfree(crtc->gamma_store); 500 crtc->gamma_store = NULL; 501 502 drm_mode_object_put(dev, &crtc->base); 503 list_del(&crtc->head); 504 dev->mode_config.num_crtc--; 505 } 506 EXPORT_SYMBOL(drm_crtc_cleanup); 507 508 /** 509 * drm_mode_probed_add - add a mode to a connector's probed mode list 510 * @connector: connector the new mode 511 * @mode: mode data 512 * 513 * LOCKING: 514 * Caller must hold mode config lock. 515 * 516 * Add @mode to @connector's mode list for later use. 517 */ 518 void drm_mode_probed_add(struct drm_connector *connector, 519 struct drm_display_mode *mode) 520 { 521 list_add(&mode->head, &connector->probed_modes); 522 } 523 EXPORT_SYMBOL(drm_mode_probed_add); 524 525 /** 526 * drm_mode_remove - remove and free a mode 527 * @connector: connector list to modify 528 * @mode: mode to remove 529 * 530 * LOCKING: 531 * Caller must hold mode config lock. 532 * 533 * Remove @mode from @connector's mode list, then free it. 534 */ 535 void drm_mode_remove(struct drm_connector *connector, 536 struct drm_display_mode *mode) 537 { 538 list_del(&mode->head); 539 drm_mode_destroy(connector->dev, mode); 540 } 541 EXPORT_SYMBOL(drm_mode_remove); 542 543 /** 544 * drm_connector_init - Init a preallocated connector 545 * @dev: DRM device 546 * @connector: the connector to init 547 * @funcs: callbacks for this connector 548 * @name: user visible name of the connector 549 * 550 * LOCKING: 551 * Takes mode config lock. 552 * 553 * Initialises a preallocated connector. Connectors should be 554 * subclassed as part of driver connector objects. 555 * 556 * RETURNS: 557 * Zero on success, error code on failure. 558 */ 559 int drm_connector_init(struct drm_device *dev, 560 struct drm_connector *connector, 561 const struct drm_connector_funcs *funcs, 562 int connector_type) 563 { 564 int ret; 565 566 mutex_lock(&dev->mode_config.mutex); 567 568 ret = drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR); 569 if (ret) 570 goto out; 571 572 connector->base.properties = &connector->properties; 573 connector->dev = dev; 574 connector->funcs = funcs; 575 connector->connector_type = connector_type; 576 connector->connector_type_id = 577 ++drm_connector_enum_list[connector_type].count; /* TODO */ 578 INIT_LIST_HEAD(&connector->user_modes); 579 INIT_LIST_HEAD(&connector->probed_modes); 580 INIT_LIST_HEAD(&connector->modes); 581 connector->edid_blob_ptr = NULL; 582 connector->status = connector_status_unknown; 583 584 list_add_tail(&connector->head, &dev->mode_config.connector_list); 585 dev->mode_config.num_connector++; 586 587 if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) 588 drm_object_attach_property(&connector->base, 589 dev->mode_config.edid_property, 590 0); 591 592 drm_object_attach_property(&connector->base, 593 dev->mode_config.dpms_property, 0); 594 595 out: 596 mutex_unlock(&dev->mode_config.mutex); 597 598 return ret; 599 } 600 EXPORT_SYMBOL(drm_connector_init); 601 602 /** 603 * drm_connector_cleanup - cleans up an initialised connector 604 * @connector: connector to cleanup 605 * 606 * LOCKING: 607 * Takes mode config lock. 608 * 609 * Cleans up the connector but doesn't free the object. 610 */ 611 void drm_connector_cleanup(struct drm_connector *connector) 612 { 613 struct drm_device *dev = connector->dev; 614 struct drm_display_mode *mode, *t; 615 616 list_for_each_entry_safe(mode, t, &connector->probed_modes, head) 617 drm_mode_remove(connector, mode); 618 619 list_for_each_entry_safe(mode, t, &connector->modes, head) 620 drm_mode_remove(connector, mode); 621 622 list_for_each_entry_safe(mode, t, &connector->user_modes, head) 623 drm_mode_remove(connector, mode); 624 625 mutex_lock(&dev->mode_config.mutex); 626 drm_mode_object_put(dev, &connector->base); 627 list_del(&connector->head); 628 dev->mode_config.num_connector--; 629 mutex_unlock(&dev->mode_config.mutex); 630 } 631 EXPORT_SYMBOL(drm_connector_cleanup); 632 633 void drm_connector_unplug_all(struct drm_device *dev) 634 { 635 #ifndef __NetBSD__ 636 struct drm_connector *connector; 637 638 /* taking the mode config mutex ends up in a clash with sysfs */ 639 list_for_each_entry(connector, &dev->mode_config.connector_list, head) 640 drm_sysfs_connector_remove(connector); 641 #endif 642 643 } 644 EXPORT_SYMBOL(drm_connector_unplug_all); 645 646 int drm_encoder_init(struct drm_device *dev, 647 struct drm_encoder *encoder, 648 const struct drm_encoder_funcs *funcs, 649 int encoder_type) 650 { 651 int ret; 652 653 mutex_lock(&dev->mode_config.mutex); 654 655 ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); 656 if (ret) 657 goto out; 658 659 encoder->dev = dev; 660 encoder->encoder_type = encoder_type; 661 encoder->funcs = funcs; 662 663 list_add_tail(&encoder->head, &dev->mode_config.encoder_list); 664 dev->mode_config.num_encoder++; 665 666 out: 667 mutex_unlock(&dev->mode_config.mutex); 668 669 return ret; 670 } 671 EXPORT_SYMBOL(drm_encoder_init); 672 673 void drm_encoder_cleanup(struct drm_encoder *encoder) 674 { 675 struct drm_device *dev = encoder->dev; 676 mutex_lock(&dev->mode_config.mutex); 677 drm_mode_object_put(dev, &encoder->base); 678 list_del(&encoder->head); 679 dev->mode_config.num_encoder--; 680 mutex_unlock(&dev->mode_config.mutex); 681 } 682 EXPORT_SYMBOL(drm_encoder_cleanup); 683 684 int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, 685 unsigned long possible_crtcs, 686 const struct drm_plane_funcs *funcs, 687 const uint32_t *formats, uint32_t format_count, 688 bool priv) 689 { 690 int ret; 691 692 mutex_lock(&dev->mode_config.mutex); 693 694 ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); 695 if (ret) 696 goto out; 697 698 plane->base.properties = &plane->properties; 699 plane->dev = dev; 700 plane->funcs = funcs; 701 plane->format_types = kmalloc(sizeof(uint32_t) * format_count, 702 GFP_KERNEL); 703 if (!plane->format_types) { 704 DRM_DEBUG_KMS("out of memory when allocating plane\n"); 705 drm_mode_object_put(dev, &plane->base); 706 ret = -ENOMEM; 707 goto out; 708 } 709 710 memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); 711 plane->format_count = format_count; 712 plane->possible_crtcs = possible_crtcs; 713 714 /* private planes are not exposed to userspace, but depending on 715 * display hardware, might be convenient to allow sharing programming 716 * for the scanout engine with the crtc implementation. 717 */ 718 if (!priv) { 719 list_add_tail(&plane->head, &dev->mode_config.plane_list); 720 dev->mode_config.num_plane++; 721 } else { 722 INIT_LIST_HEAD(&plane->head); 723 } 724 725 out: 726 mutex_unlock(&dev->mode_config.mutex); 727 728 return ret; 729 } 730 EXPORT_SYMBOL(drm_plane_init); 731 732 void drm_plane_cleanup(struct drm_plane *plane) 733 { 734 struct drm_device *dev = plane->dev; 735 736 mutex_lock(&dev->mode_config.mutex); 737 kfree(plane->format_types); 738 drm_mode_object_put(dev, &plane->base); 739 /* if not added to a list, it must be a private plane */ 740 if (!list_empty(&plane->head)) { 741 list_del(&plane->head); 742 dev->mode_config.num_plane--; 743 } 744 mutex_unlock(&dev->mode_config.mutex); 745 } 746 EXPORT_SYMBOL(drm_plane_cleanup); 747 748 /** 749 * drm_mode_create - create a new display mode 750 * @dev: DRM device 751 * 752 * LOCKING: 753 * Caller must hold DRM mode_config lock. 754 * 755 * Create a new drm_display_mode, give it an ID, and return it. 756 * 757 * RETURNS: 758 * Pointer to new mode on success, NULL on error. 759 */ 760 struct drm_display_mode *drm_mode_create(struct drm_device *dev) 761 { 762 struct drm_display_mode *nmode; 763 764 nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL); 765 if (!nmode) 766 return NULL; 767 768 if (drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE)) { 769 kfree(nmode); 770 return NULL; 771 } 772 773 return nmode; 774 } 775 EXPORT_SYMBOL(drm_mode_create); 776 777 /** 778 * drm_mode_destroy - remove a mode 779 * @dev: DRM device 780 * @mode: mode to remove 781 * 782 * LOCKING: 783 * Caller must hold mode config lock. 784 * 785 * Free @mode's unique identifier, then free it. 786 */ 787 void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode) 788 { 789 if (!mode) 790 return; 791 792 drm_mode_object_put(dev, &mode->base); 793 794 kfree(mode); 795 } 796 EXPORT_SYMBOL(drm_mode_destroy); 797 798 static int drm_mode_create_standard_connector_properties(struct drm_device *dev) 799 { 800 struct drm_property *edid; 801 struct drm_property *dpms; 802 803 /* 804 * Standard properties (apply to all connectors) 805 */ 806 edid = drm_property_create(dev, DRM_MODE_PROP_BLOB | 807 DRM_MODE_PROP_IMMUTABLE, 808 "EDID", 0); 809 dev->mode_config.edid_property = edid; 810 811 dpms = drm_property_create_enum(dev, 0, 812 "DPMS", drm_dpms_enum_list, 813 ARRAY_SIZE(drm_dpms_enum_list)); 814 dev->mode_config.dpms_property = dpms; 815 816 return 0; 817 } 818 819 /** 820 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties 821 * @dev: DRM device 822 * 823 * Called by a driver the first time a DVI-I connector is made. 824 */ 825 int drm_mode_create_dvi_i_properties(struct drm_device *dev) 826 { 827 struct drm_property *dvi_i_selector; 828 struct drm_property *dvi_i_subconnector; 829 830 if (dev->mode_config.dvi_i_select_subconnector_property) 831 return 0; 832 833 dvi_i_selector = 834 drm_property_create_enum(dev, 0, 835 "select subconnector", 836 drm_dvi_i_select_enum_list, 837 ARRAY_SIZE(drm_dvi_i_select_enum_list)); 838 dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; 839 840 dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 841 "subconnector", 842 drm_dvi_i_subconnector_enum_list, 843 ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); 844 dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; 845 846 return 0; 847 } 848 EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); 849 850 /** 851 * drm_create_tv_properties - create TV specific connector properties 852 * @dev: DRM device 853 * @num_modes: number of different TV formats (modes) supported 854 * @modes: array of pointers to strings containing name of each format 855 * 856 * Called by a driver's TV initialization routine, this function creates 857 * the TV specific connector properties for a given device. Caller is 858 * responsible for allocating a list of format names and passing them to 859 * this routine. 860 */ 861 #ifdef __NetBSD__ /* XXX const */ 862 int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes, 863 const char *modes[]) 864 #else 865 int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes, 866 char *modes[]) 867 #endif 868 { 869 struct drm_property *tv_selector; 870 struct drm_property *tv_subconnector; 871 int i; 872 873 if (dev->mode_config.tv_select_subconnector_property) 874 return 0; 875 876 /* 877 * Basic connector properties 878 */ 879 tv_selector = drm_property_create_enum(dev, 0, 880 "select subconnector", 881 drm_tv_select_enum_list, 882 ARRAY_SIZE(drm_tv_select_enum_list)); 883 dev->mode_config.tv_select_subconnector_property = tv_selector; 884 885 tv_subconnector = 886 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 887 "subconnector", 888 drm_tv_subconnector_enum_list, 889 ARRAY_SIZE(drm_tv_subconnector_enum_list)); 890 dev->mode_config.tv_subconnector_property = tv_subconnector; 891 892 /* 893 * Other, TV specific properties: margins & TV modes. 894 */ 895 dev->mode_config.tv_left_margin_property = 896 drm_property_create_range(dev, 0, "left margin", 0, 100); 897 898 dev->mode_config.tv_right_margin_property = 899 drm_property_create_range(dev, 0, "right margin", 0, 100); 900 901 dev->mode_config.tv_top_margin_property = 902 drm_property_create_range(dev, 0, "top margin", 0, 100); 903 904 dev->mode_config.tv_bottom_margin_property = 905 drm_property_create_range(dev, 0, "bottom margin", 0, 100); 906 907 dev->mode_config.tv_mode_property = 908 drm_property_create(dev, DRM_MODE_PROP_ENUM, 909 "mode", num_modes); 910 for (i = 0; i < num_modes; i++) 911 drm_property_add_enum(dev->mode_config.tv_mode_property, i, 912 i, modes[i]); 913 914 dev->mode_config.tv_brightness_property = 915 drm_property_create_range(dev, 0, "brightness", 0, 100); 916 917 dev->mode_config.tv_contrast_property = 918 drm_property_create_range(dev, 0, "contrast", 0, 100); 919 920 dev->mode_config.tv_flicker_reduction_property = 921 drm_property_create_range(dev, 0, "flicker reduction", 0, 100); 922 923 dev->mode_config.tv_overscan_property = 924 drm_property_create_range(dev, 0, "overscan", 0, 100); 925 926 dev->mode_config.tv_saturation_property = 927 drm_property_create_range(dev, 0, "saturation", 0, 100); 928 929 dev->mode_config.tv_hue_property = 930 drm_property_create_range(dev, 0, "hue", 0, 100); 931 932 return 0; 933 } 934 EXPORT_SYMBOL(drm_mode_create_tv_properties); 935 936 /** 937 * drm_mode_create_scaling_mode_property - create scaling mode property 938 * @dev: DRM device 939 * 940 * Called by a driver the first time it's needed, must be attached to desired 941 * connectors. 942 */ 943 int drm_mode_create_scaling_mode_property(struct drm_device *dev) 944 { 945 struct drm_property *scaling_mode; 946 947 if (dev->mode_config.scaling_mode_property) 948 return 0; 949 950 scaling_mode = 951 drm_property_create_enum(dev, 0, "scaling mode", 952 drm_scaling_mode_enum_list, 953 ARRAY_SIZE(drm_scaling_mode_enum_list)); 954 955 dev->mode_config.scaling_mode_property = scaling_mode; 956 957 return 0; 958 } 959 EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); 960 961 /** 962 * drm_mode_create_dithering_property - create dithering property 963 * @dev: DRM device 964 * 965 * Called by a driver the first time it's needed, must be attached to desired 966 * connectors. 967 */ 968 int drm_mode_create_dithering_property(struct drm_device *dev) 969 { 970 struct drm_property *dithering_mode; 971 972 if (dev->mode_config.dithering_mode_property) 973 return 0; 974 975 dithering_mode = 976 drm_property_create_enum(dev, 0, "dithering", 977 drm_dithering_mode_enum_list, 978 ARRAY_SIZE(drm_dithering_mode_enum_list)); 979 dev->mode_config.dithering_mode_property = dithering_mode; 980 981 return 0; 982 } 983 EXPORT_SYMBOL(drm_mode_create_dithering_property); 984 985 /** 986 * drm_mode_create_dirty_property - create dirty property 987 * @dev: DRM device 988 * 989 * Called by a driver the first time it's needed, must be attached to desired 990 * connectors. 991 */ 992 int drm_mode_create_dirty_info_property(struct drm_device *dev) 993 { 994 struct drm_property *dirty_info; 995 996 if (dev->mode_config.dirty_info_property) 997 return 0; 998 999 dirty_info = 1000 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 1001 "dirty", 1002 drm_dirty_info_enum_list, 1003 ARRAY_SIZE(drm_dirty_info_enum_list)); 1004 dev->mode_config.dirty_info_property = dirty_info; 1005 1006 return 0; 1007 } 1008 EXPORT_SYMBOL(drm_mode_create_dirty_info_property); 1009 1010 /** 1011 * drm_mode_config_init - initialize DRM mode_configuration structure 1012 * @dev: DRM device 1013 * 1014 * LOCKING: 1015 * None, should happen single threaded at init time. 1016 * 1017 * Initialize @dev's mode_config structure, used for tracking the graphics 1018 * configuration of @dev. 1019 */ 1020 void drm_mode_config_init(struct drm_device *dev) 1021 { 1022 #ifdef __NetBSD__ 1023 linux_mutex_init(&dev->mode_config.mutex); 1024 linux_mutex_init(&dev->mode_config.idr_mutex); 1025 #else 1026 mutex_init(&dev->mode_config.mutex); 1027 mutex_init(&dev->mode_config.idr_mutex); 1028 #endif 1029 INIT_LIST_HEAD(&dev->mode_config.fb_list); 1030 INIT_LIST_HEAD(&dev->mode_config.crtc_list); 1031 INIT_LIST_HEAD(&dev->mode_config.connector_list); 1032 INIT_LIST_HEAD(&dev->mode_config.encoder_list); 1033 INIT_LIST_HEAD(&dev->mode_config.property_list); 1034 INIT_LIST_HEAD(&dev->mode_config.property_blob_list); 1035 INIT_LIST_HEAD(&dev->mode_config.plane_list); 1036 idr_init(&dev->mode_config.crtc_idr); 1037 1038 mutex_lock(&dev->mode_config.mutex); 1039 drm_mode_create_standard_connector_properties(dev); 1040 mutex_unlock(&dev->mode_config.mutex); 1041 1042 /* Just to be sure */ 1043 dev->mode_config.num_fb = 0; 1044 dev->mode_config.num_connector = 0; 1045 dev->mode_config.num_crtc = 0; 1046 dev->mode_config.num_encoder = 0; 1047 } 1048 EXPORT_SYMBOL(drm_mode_config_init); 1049 1050 #ifdef __NetBSD__ 1051 static 1052 #endif 1053 int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group) 1054 { 1055 uint32_t total_objects = 0; 1056 1057 total_objects += dev->mode_config.num_crtc; 1058 total_objects += dev->mode_config.num_connector; 1059 total_objects += dev->mode_config.num_encoder; 1060 1061 group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL); 1062 if (!group->id_list) 1063 return -ENOMEM; 1064 1065 group->num_crtcs = 0; 1066 group->num_connectors = 0; 1067 group->num_encoders = 0; 1068 return 0; 1069 } 1070 1071 int drm_mode_group_init_legacy_group(struct drm_device *dev, 1072 struct drm_mode_group *group) 1073 { 1074 struct drm_crtc *crtc; 1075 struct drm_encoder *encoder; 1076 struct drm_connector *connector; 1077 int ret; 1078 1079 if ((ret = drm_mode_group_init(dev, group))) 1080 return ret; 1081 1082 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) 1083 group->id_list[group->num_crtcs++] = crtc->base.id; 1084 1085 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) 1086 group->id_list[group->num_crtcs + group->num_encoders++] = 1087 encoder->base.id; 1088 1089 list_for_each_entry(connector, &dev->mode_config.connector_list, head) 1090 group->id_list[group->num_crtcs + group->num_encoders + 1091 group->num_connectors++] = connector->base.id; 1092 1093 return 0; 1094 } 1095 EXPORT_SYMBOL(drm_mode_group_init_legacy_group); 1096 1097 /** 1098 * drm_mode_config_cleanup - free up DRM mode_config info 1099 * @dev: DRM device 1100 * 1101 * LOCKING: 1102 * Caller must hold mode config lock. 1103 * 1104 * Free up all the connectors and CRTCs associated with this DRM device, then 1105 * free up the framebuffers and associated buffer objects. 1106 * 1107 * FIXME: cleanup any dangling user buffer objects too 1108 */ 1109 void drm_mode_config_cleanup(struct drm_device *dev) 1110 { 1111 struct drm_connector *connector, *ot; 1112 struct drm_crtc *crtc, *ct; 1113 struct drm_encoder *encoder, *enct; 1114 struct drm_framebuffer *fb, *fbt; 1115 struct drm_property *property, *pt; 1116 struct drm_plane *plane, *plt; 1117 1118 list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, 1119 head) { 1120 encoder->funcs->destroy(encoder); 1121 } 1122 1123 list_for_each_entry_safe(connector, ot, 1124 &dev->mode_config.connector_list, head) { 1125 connector->funcs->destroy(connector); 1126 } 1127 1128 list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, 1129 head) { 1130 drm_property_destroy(dev, property); 1131 } 1132 1133 list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { 1134 drm_framebuffer_remove(fb); 1135 } 1136 1137 list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, 1138 head) { 1139 plane->funcs->destroy(plane); 1140 } 1141 1142 list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { 1143 crtc->funcs->destroy(crtc); 1144 } 1145 1146 idr_remove_all(&dev->mode_config.crtc_idr); 1147 idr_destroy(&dev->mode_config.crtc_idr); 1148 1149 #ifdef __NetBSD__ 1150 linux_mutex_destroy(&dev->mode_config.mutex); 1151 linux_mutex_destroy(&dev->mode_config.idr_mutex); 1152 #endif 1153 } 1154 EXPORT_SYMBOL(drm_mode_config_cleanup); 1155 1156 /** 1157 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo 1158 * @out: drm_mode_modeinfo struct to return to the user 1159 * @in: drm_display_mode to use 1160 * 1161 * LOCKING: 1162 * None. 1163 * 1164 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to 1165 * the user. 1166 */ 1167 static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out, 1168 const struct drm_display_mode *in) 1169 { 1170 WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX || 1171 in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX || 1172 in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX || 1173 in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX || 1174 in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX, 1175 "timing values too large for mode info\n"); 1176 1177 out->clock = in->clock; 1178 out->hdisplay = in->hdisplay; 1179 out->hsync_start = in->hsync_start; 1180 out->hsync_end = in->hsync_end; 1181 out->htotal = in->htotal; 1182 out->hskew = in->hskew; 1183 out->vdisplay = in->vdisplay; 1184 out->vsync_start = in->vsync_start; 1185 out->vsync_end = in->vsync_end; 1186 out->vtotal = in->vtotal; 1187 out->vscan = in->vscan; 1188 out->vrefresh = in->vrefresh; 1189 out->flags = in->flags; 1190 out->type = in->type; 1191 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); 1192 out->name[DRM_DISPLAY_MODE_LEN-1] = 0; 1193 } 1194 1195 /** 1196 * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode 1197 * @out: drm_display_mode to return to the user 1198 * @in: drm_mode_modeinfo to use 1199 * 1200 * LOCKING: 1201 * None. 1202 * 1203 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to 1204 * the caller. 1205 * 1206 * RETURNS: 1207 * Zero on success, errno on failure. 1208 */ 1209 static int drm_crtc_convert_umode(struct drm_display_mode *out, 1210 const struct drm_mode_modeinfo *in) 1211 { 1212 if (in->clock > INT_MAX || in->vrefresh > INT_MAX) 1213 return -ERANGE; 1214 1215 out->clock = in->clock; 1216 out->hdisplay = in->hdisplay; 1217 out->hsync_start = in->hsync_start; 1218 out->hsync_end = in->hsync_end; 1219 out->htotal = in->htotal; 1220 out->hskew = in->hskew; 1221 out->vdisplay = in->vdisplay; 1222 out->vsync_start = in->vsync_start; 1223 out->vsync_end = in->vsync_end; 1224 out->vtotal = in->vtotal; 1225 out->vscan = in->vscan; 1226 out->vrefresh = in->vrefresh; 1227 out->flags = in->flags; 1228 out->type = in->type; 1229 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); 1230 out->name[DRM_DISPLAY_MODE_LEN-1] = 0; 1231 1232 return 0; 1233 } 1234 1235 /** 1236 * drm_mode_getresources - get graphics configuration 1237 * @inode: inode from the ioctl 1238 * @filp: file * from the ioctl 1239 * @cmd: cmd from ioctl 1240 * @arg: arg from ioctl 1241 * 1242 * LOCKING: 1243 * Takes mode config lock. 1244 * 1245 * Construct a set of configuration description structures and return 1246 * them to the user, including CRTC, connector and framebuffer configuration. 1247 * 1248 * Called by the user via ioctl. 1249 * 1250 * RETURNS: 1251 * Zero on success, errno on failure. 1252 */ 1253 int drm_mode_getresources(struct drm_device *dev, void *data, 1254 struct drm_file *file_priv) 1255 { 1256 struct drm_mode_card_res *card_res = data; 1257 struct list_head *lh; 1258 struct drm_framebuffer *fb; 1259 struct drm_connector *connector; 1260 struct drm_crtc *crtc; 1261 struct drm_encoder *encoder; 1262 int ret = 0; 1263 int connector_count = 0; 1264 int crtc_count = 0; 1265 int fb_count = 0; 1266 int encoder_count = 0; 1267 int copied = 0, i; 1268 uint32_t __user *fb_id; 1269 uint32_t __user *crtc_id; 1270 uint32_t __user *connector_id; 1271 uint32_t __user *encoder_id; 1272 struct drm_mode_group *mode_group; 1273 1274 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1275 return -EINVAL; 1276 1277 mutex_lock(&dev->mode_config.mutex); 1278 1279 /* 1280 * For the non-control nodes we need to limit the list of resources 1281 * by IDs in the group list for this node 1282 */ 1283 list_for_each(lh, &file_priv->fbs) 1284 fb_count++; 1285 1286 mode_group = &file_priv->master->minor->mode_group; 1287 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { 1288 1289 list_for_each(lh, &dev->mode_config.crtc_list) 1290 crtc_count++; 1291 1292 list_for_each(lh, &dev->mode_config.connector_list) 1293 connector_count++; 1294 1295 list_for_each(lh, &dev->mode_config.encoder_list) 1296 encoder_count++; 1297 } else { 1298 1299 crtc_count = mode_group->num_crtcs; 1300 connector_count = mode_group->num_connectors; 1301 encoder_count = mode_group->num_encoders; 1302 } 1303 1304 card_res->max_height = dev->mode_config.max_height; 1305 card_res->min_height = dev->mode_config.min_height; 1306 card_res->max_width = dev->mode_config.max_width; 1307 card_res->min_width = dev->mode_config.min_width; 1308 1309 /* handle this in 4 parts */ 1310 /* FBs */ 1311 if (card_res->count_fbs >= fb_count) { 1312 copied = 0; 1313 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; 1314 list_for_each_entry(fb, &file_priv->fbs, filp_head) { 1315 if (put_user(fb->base.id, fb_id + copied)) { 1316 ret = -EFAULT; 1317 goto out; 1318 } 1319 copied++; 1320 } 1321 } 1322 card_res->count_fbs = fb_count; 1323 1324 /* CRTCs */ 1325 if (card_res->count_crtcs >= crtc_count) { 1326 copied = 0; 1327 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; 1328 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { 1329 list_for_each_entry(crtc, &dev->mode_config.crtc_list, 1330 head) { 1331 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); 1332 if (put_user(crtc->base.id, crtc_id + copied)) { 1333 ret = -EFAULT; 1334 goto out; 1335 } 1336 copied++; 1337 } 1338 } else { 1339 for (i = 0; i < mode_group->num_crtcs; i++) { 1340 if (put_user(mode_group->id_list[i], 1341 crtc_id + copied)) { 1342 ret = -EFAULT; 1343 goto out; 1344 } 1345 copied++; 1346 } 1347 } 1348 } 1349 card_res->count_crtcs = crtc_count; 1350 1351 /* Encoders */ 1352 if (card_res->count_encoders >= encoder_count) { 1353 copied = 0; 1354 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; 1355 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { 1356 list_for_each_entry(encoder, 1357 &dev->mode_config.encoder_list, 1358 head) { 1359 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id, 1360 drm_get_encoder_name(encoder)); 1361 if (put_user(encoder->base.id, encoder_id + 1362 copied)) { 1363 ret = -EFAULT; 1364 goto out; 1365 } 1366 copied++; 1367 } 1368 } else { 1369 for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) { 1370 if (put_user(mode_group->id_list[i], 1371 encoder_id + copied)) { 1372 ret = -EFAULT; 1373 goto out; 1374 } 1375 copied++; 1376 } 1377 1378 } 1379 } 1380 card_res->count_encoders = encoder_count; 1381 1382 /* Connectors */ 1383 if (card_res->count_connectors >= connector_count) { 1384 copied = 0; 1385 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; 1386 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { 1387 list_for_each_entry(connector, 1388 &dev->mode_config.connector_list, 1389 head) { 1390 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", 1391 connector->base.id, 1392 drm_get_connector_name(connector)); 1393 if (put_user(connector->base.id, 1394 connector_id + copied)) { 1395 ret = -EFAULT; 1396 goto out; 1397 } 1398 copied++; 1399 } 1400 } else { 1401 int start = mode_group->num_crtcs + 1402 mode_group->num_encoders; 1403 for (i = start; i < start + mode_group->num_connectors; i++) { 1404 if (put_user(mode_group->id_list[i], 1405 connector_id + copied)) { 1406 ret = -EFAULT; 1407 goto out; 1408 } 1409 copied++; 1410 } 1411 } 1412 } 1413 card_res->count_connectors = connector_count; 1414 1415 DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs, 1416 card_res->count_connectors, card_res->count_encoders); 1417 1418 out: 1419 mutex_unlock(&dev->mode_config.mutex); 1420 return ret; 1421 } 1422 1423 /** 1424 * drm_mode_getcrtc - get CRTC configuration 1425 * @inode: inode from the ioctl 1426 * @filp: file * from the ioctl 1427 * @cmd: cmd from ioctl 1428 * @arg: arg from ioctl 1429 * 1430 * LOCKING: 1431 * Takes mode config lock. 1432 * 1433 * Construct a CRTC configuration structure to return to the user. 1434 * 1435 * Called by the user via ioctl. 1436 * 1437 * RETURNS: 1438 * Zero on success, errno on failure. 1439 */ 1440 int drm_mode_getcrtc(struct drm_device *dev, 1441 void *data, struct drm_file *file_priv) 1442 { 1443 struct drm_mode_crtc *crtc_resp = data; 1444 struct drm_crtc *crtc; 1445 struct drm_mode_object *obj; 1446 int ret = 0; 1447 1448 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1449 return -EINVAL; 1450 1451 mutex_lock(&dev->mode_config.mutex); 1452 1453 obj = drm_mode_object_find(dev, crtc_resp->crtc_id, 1454 DRM_MODE_OBJECT_CRTC); 1455 if (!obj) { 1456 ret = -EINVAL; 1457 goto out; 1458 } 1459 crtc = obj_to_crtc(obj); 1460 1461 crtc_resp->x = crtc->x; 1462 crtc_resp->y = crtc->y; 1463 crtc_resp->gamma_size = crtc->gamma_size; 1464 if (crtc->fb) 1465 crtc_resp->fb_id = crtc->fb->base.id; 1466 else 1467 crtc_resp->fb_id = 0; 1468 1469 if (crtc->enabled) { 1470 1471 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode); 1472 crtc_resp->mode_valid = 1; 1473 1474 } else { 1475 crtc_resp->mode_valid = 0; 1476 } 1477 1478 out: 1479 mutex_unlock(&dev->mode_config.mutex); 1480 return ret; 1481 } 1482 1483 /** 1484 * drm_mode_getconnector - get connector configuration 1485 * @inode: inode from the ioctl 1486 * @filp: file * from the ioctl 1487 * @cmd: cmd from ioctl 1488 * @arg: arg from ioctl 1489 * 1490 * LOCKING: 1491 * Takes mode config lock. 1492 * 1493 * Construct a connector configuration structure to return to the user. 1494 * 1495 * Called by the user via ioctl. 1496 * 1497 * RETURNS: 1498 * Zero on success, errno on failure. 1499 */ 1500 int drm_mode_getconnector(struct drm_device *dev, void *data, 1501 struct drm_file *file_priv) 1502 { 1503 struct drm_mode_get_connector *out_resp = data; 1504 struct drm_mode_object *obj; 1505 struct drm_connector *connector; 1506 struct drm_display_mode *mode; 1507 int mode_count = 0; 1508 int props_count = 0; 1509 int encoders_count = 0; 1510 int ret = 0; 1511 int copied = 0; 1512 int i; 1513 struct drm_mode_modeinfo u_mode; 1514 struct drm_mode_modeinfo __user *mode_ptr; 1515 uint32_t __user *prop_ptr; 1516 uint64_t __user *prop_values; 1517 uint32_t __user *encoder_ptr; 1518 1519 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1520 return -EINVAL; 1521 1522 memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); 1523 1524 DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id); 1525 1526 mutex_lock(&dev->mode_config.mutex); 1527 1528 obj = drm_mode_object_find(dev, out_resp->connector_id, 1529 DRM_MODE_OBJECT_CONNECTOR); 1530 if (!obj) { 1531 ret = -EINVAL; 1532 goto out; 1533 } 1534 connector = obj_to_connector(obj); 1535 1536 props_count = connector->properties.count; 1537 1538 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 1539 if (connector->encoder_ids[i] != 0) { 1540 encoders_count++; 1541 } 1542 } 1543 1544 if (out_resp->count_modes == 0) { 1545 connector->funcs->fill_modes(connector, 1546 dev->mode_config.max_width, 1547 dev->mode_config.max_height); 1548 } 1549 1550 /* delayed so we get modes regardless of pre-fill_modes state */ 1551 list_for_each_entry(mode, &connector->modes, head) 1552 mode_count++; 1553 1554 out_resp->connector_id = connector->base.id; 1555 out_resp->connector_type = connector->connector_type; 1556 out_resp->connector_type_id = connector->connector_type_id; 1557 out_resp->mm_width = connector->display_info.width_mm; 1558 out_resp->mm_height = connector->display_info.height_mm; 1559 out_resp->subpixel = connector->display_info.subpixel_order; 1560 out_resp->connection = connector->status; 1561 if (connector->encoder) 1562 out_resp->encoder_id = connector->encoder->base.id; 1563 else 1564 out_resp->encoder_id = 0; 1565 1566 /* 1567 * This ioctl is called twice, once to determine how much space is 1568 * needed, and the 2nd time to fill it. 1569 */ 1570 if ((out_resp->count_modes >= mode_count) && mode_count) { 1571 copied = 0; 1572 mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; 1573 list_for_each_entry(mode, &connector->modes, head) { 1574 drm_crtc_convert_to_umode(&u_mode, mode); 1575 if (copy_to_user(mode_ptr + copied, 1576 &u_mode, sizeof(u_mode))) { 1577 ret = -EFAULT; 1578 goto out; 1579 } 1580 copied++; 1581 } 1582 } 1583 out_resp->count_modes = mode_count; 1584 1585 if ((out_resp->count_props >= props_count) && props_count) { 1586 copied = 0; 1587 prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr); 1588 prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr); 1589 for (i = 0; i < connector->properties.count; i++) { 1590 if (put_user(connector->properties.ids[i], 1591 prop_ptr + copied)) { 1592 ret = -EFAULT; 1593 goto out; 1594 } 1595 1596 if (put_user(connector->properties.values[i], 1597 prop_values + copied)) { 1598 ret = -EFAULT; 1599 goto out; 1600 } 1601 copied++; 1602 } 1603 } 1604 out_resp->count_props = props_count; 1605 1606 if ((out_resp->count_encoders >= encoders_count) && encoders_count) { 1607 copied = 0; 1608 encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); 1609 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 1610 if (connector->encoder_ids[i] != 0) { 1611 if (put_user(connector->encoder_ids[i], 1612 encoder_ptr + copied)) { 1613 ret = -EFAULT; 1614 goto out; 1615 } 1616 copied++; 1617 } 1618 } 1619 } 1620 out_resp->count_encoders = encoders_count; 1621 1622 out: 1623 mutex_unlock(&dev->mode_config.mutex); 1624 return ret; 1625 } 1626 1627 int drm_mode_getencoder(struct drm_device *dev, void *data, 1628 struct drm_file *file_priv) 1629 { 1630 struct drm_mode_get_encoder *enc_resp = data; 1631 struct drm_mode_object *obj; 1632 struct drm_encoder *encoder; 1633 int ret = 0; 1634 1635 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1636 return -EINVAL; 1637 1638 mutex_lock(&dev->mode_config.mutex); 1639 obj = drm_mode_object_find(dev, enc_resp->encoder_id, 1640 DRM_MODE_OBJECT_ENCODER); 1641 if (!obj) { 1642 ret = -EINVAL; 1643 goto out; 1644 } 1645 encoder = obj_to_encoder(obj); 1646 1647 if (encoder->crtc) 1648 enc_resp->crtc_id = encoder->crtc->base.id; 1649 else 1650 enc_resp->crtc_id = 0; 1651 enc_resp->encoder_type = encoder->encoder_type; 1652 enc_resp->encoder_id = encoder->base.id; 1653 enc_resp->possible_crtcs = encoder->possible_crtcs; 1654 enc_resp->possible_clones = encoder->possible_clones; 1655 1656 out: 1657 mutex_unlock(&dev->mode_config.mutex); 1658 return ret; 1659 } 1660 1661 /** 1662 * drm_mode_getplane_res - get plane info 1663 * @dev: DRM device 1664 * @data: ioctl data 1665 * @file_priv: DRM file info 1666 * 1667 * LOCKING: 1668 * Takes mode config lock. 1669 * 1670 * Return an plane count and set of IDs. 1671 */ 1672 int drm_mode_getplane_res(struct drm_device *dev, void *data, 1673 struct drm_file *file_priv) 1674 { 1675 struct drm_mode_get_plane_res *plane_resp = data; 1676 struct drm_mode_config *config; 1677 struct drm_plane *plane; 1678 uint32_t __user *plane_ptr; 1679 int copied = 0, ret = 0; 1680 1681 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1682 return -EINVAL; 1683 1684 mutex_lock(&dev->mode_config.mutex); 1685 config = &dev->mode_config; 1686 1687 /* 1688 * This ioctl is called twice, once to determine how much space is 1689 * needed, and the 2nd time to fill it. 1690 */ 1691 if (config->num_plane && 1692 (plane_resp->count_planes >= config->num_plane)) { 1693 plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; 1694 1695 list_for_each_entry(plane, &config->plane_list, head) { 1696 if (put_user(plane->base.id, plane_ptr + copied)) { 1697 ret = -EFAULT; 1698 goto out; 1699 } 1700 copied++; 1701 } 1702 } 1703 plane_resp->count_planes = config->num_plane; 1704 1705 out: 1706 mutex_unlock(&dev->mode_config.mutex); 1707 return ret; 1708 } 1709 1710 /** 1711 * drm_mode_getplane - get plane info 1712 * @dev: DRM device 1713 * @data: ioctl data 1714 * @file_priv: DRM file info 1715 * 1716 * LOCKING: 1717 * Takes mode config lock. 1718 * 1719 * Return plane info, including formats supported, gamma size, any 1720 * current fb, etc. 1721 */ 1722 int drm_mode_getplane(struct drm_device *dev, void *data, 1723 struct drm_file *file_priv) 1724 { 1725 struct drm_mode_get_plane *plane_resp = data; 1726 struct drm_mode_object *obj; 1727 struct drm_plane *plane; 1728 uint32_t __user *format_ptr; 1729 int ret = 0; 1730 1731 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1732 return -EINVAL; 1733 1734 mutex_lock(&dev->mode_config.mutex); 1735 obj = drm_mode_object_find(dev, plane_resp->plane_id, 1736 DRM_MODE_OBJECT_PLANE); 1737 if (!obj) { 1738 ret = -ENOENT; 1739 goto out; 1740 } 1741 plane = obj_to_plane(obj); 1742 1743 if (plane->crtc) 1744 plane_resp->crtc_id = plane->crtc->base.id; 1745 else 1746 plane_resp->crtc_id = 0; 1747 1748 if (plane->fb) 1749 plane_resp->fb_id = plane->fb->base.id; 1750 else 1751 plane_resp->fb_id = 0; 1752 1753 plane_resp->plane_id = plane->base.id; 1754 plane_resp->possible_crtcs = plane->possible_crtcs; 1755 plane_resp->gamma_size = plane->gamma_size; 1756 1757 /* 1758 * This ioctl is called twice, once to determine how much space is 1759 * needed, and the 2nd time to fill it. 1760 */ 1761 if (plane->format_count && 1762 (plane_resp->count_format_types >= plane->format_count)) { 1763 format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; 1764 if (copy_to_user(format_ptr, 1765 plane->format_types, 1766 sizeof(uint32_t) * plane->format_count)) { 1767 ret = -EFAULT; 1768 goto out; 1769 } 1770 } 1771 plane_resp->count_format_types = plane->format_count; 1772 1773 out: 1774 mutex_unlock(&dev->mode_config.mutex); 1775 return ret; 1776 } 1777 1778 /** 1779 * drm_mode_setplane - set up or tear down an plane 1780 * @dev: DRM device 1781 * @data: ioctl data* 1782 * @file_prive: DRM file info 1783 * 1784 * LOCKING: 1785 * Takes mode config lock. 1786 * 1787 * Set plane info, including placement, fb, scaling, and other factors. 1788 * Or pass a NULL fb to disable. 1789 */ 1790 int drm_mode_setplane(struct drm_device *dev, void *data, 1791 struct drm_file *file_priv) 1792 { 1793 struct drm_mode_set_plane *plane_req = data; 1794 struct drm_mode_object *obj; 1795 struct drm_plane *plane; 1796 struct drm_crtc *crtc; 1797 struct drm_framebuffer *fb; 1798 int ret = 0; 1799 unsigned int fb_width, fb_height; 1800 int i; 1801 1802 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1803 return -EINVAL; 1804 1805 mutex_lock(&dev->mode_config.mutex); 1806 1807 /* 1808 * First, find the plane, crtc, and fb objects. If not available, 1809 * we don't bother to call the driver. 1810 */ 1811 obj = drm_mode_object_find(dev, plane_req->plane_id, 1812 DRM_MODE_OBJECT_PLANE); 1813 if (!obj) { 1814 DRM_DEBUG_KMS("Unknown plane ID %d\n", 1815 plane_req->plane_id); 1816 ret = -ENOENT; 1817 goto out; 1818 } 1819 plane = obj_to_plane(obj); 1820 1821 /* No fb means shut it down */ 1822 if (!plane_req->fb_id) { 1823 plane->funcs->disable_plane(plane); 1824 plane->crtc = NULL; 1825 plane->fb = NULL; 1826 goto out; 1827 } 1828 1829 obj = drm_mode_object_find(dev, plane_req->crtc_id, 1830 DRM_MODE_OBJECT_CRTC); 1831 if (!obj) { 1832 DRM_DEBUG_KMS("Unknown crtc ID %d\n", 1833 plane_req->crtc_id); 1834 ret = -ENOENT; 1835 goto out; 1836 } 1837 crtc = obj_to_crtc(obj); 1838 1839 obj = drm_mode_object_find(dev, plane_req->fb_id, 1840 DRM_MODE_OBJECT_FB); 1841 if (!obj) { 1842 DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", 1843 plane_req->fb_id); 1844 ret = -ENOENT; 1845 goto out; 1846 } 1847 fb = obj_to_fb(obj); 1848 1849 /* Check whether this plane supports the fb pixel format. */ 1850 for (i = 0; i < plane->format_count; i++) 1851 if (fb->pixel_format == plane->format_types[i]) 1852 break; 1853 if (i == plane->format_count) { 1854 DRM_DEBUG_KMS("Invalid pixel format 0x%08x\n", fb->pixel_format); 1855 ret = -EINVAL; 1856 goto out; 1857 } 1858 1859 fb_width = fb->width << 16; 1860 fb_height = fb->height << 16; 1861 1862 /* Make sure source coordinates are inside the fb. */ 1863 if (plane_req->src_w > fb_width || 1864 plane_req->src_x > fb_width - plane_req->src_w || 1865 plane_req->src_h > fb_height || 1866 plane_req->src_y > fb_height - plane_req->src_h) { 1867 DRM_DEBUG_KMS("Invalid source coordinates " 1868 "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", 1869 plane_req->src_w >> 16, 1870 ((plane_req->src_w & 0xffff) * 15625) >> 10, 1871 plane_req->src_h >> 16, 1872 ((plane_req->src_h & 0xffff) * 15625) >> 10, 1873 plane_req->src_x >> 16, 1874 ((plane_req->src_x & 0xffff) * 15625) >> 10, 1875 plane_req->src_y >> 16, 1876 ((plane_req->src_y & 0xffff) * 15625) >> 10); 1877 ret = -ENOSPC; 1878 goto out; 1879 } 1880 1881 /* Give drivers some help against integer overflows */ 1882 if (plane_req->crtc_w > INT_MAX || 1883 plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w || 1884 plane_req->crtc_h > INT_MAX || 1885 plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) { 1886 DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", 1887 plane_req->crtc_w, plane_req->crtc_h, 1888 plane_req->crtc_x, plane_req->crtc_y); 1889 ret = -ERANGE; 1890 goto out; 1891 } 1892 1893 ret = plane->funcs->update_plane(plane, crtc, fb, 1894 plane_req->crtc_x, plane_req->crtc_y, 1895 plane_req->crtc_w, plane_req->crtc_h, 1896 plane_req->src_x, plane_req->src_y, 1897 plane_req->src_w, plane_req->src_h); 1898 if (!ret) { 1899 plane->crtc = crtc; 1900 plane->fb = fb; 1901 } 1902 1903 out: 1904 mutex_unlock(&dev->mode_config.mutex); 1905 1906 return ret; 1907 } 1908 1909 /** 1910 * drm_mode_setcrtc - set CRTC configuration 1911 * @inode: inode from the ioctl 1912 * @filp: file * from the ioctl 1913 * @cmd: cmd from ioctl 1914 * @arg: arg from ioctl 1915 * 1916 * LOCKING: 1917 * Takes mode config lock. 1918 * 1919 * Build a new CRTC configuration based on user request. 1920 * 1921 * Called by the user via ioctl. 1922 * 1923 * RETURNS: 1924 * Zero on success, errno on failure. 1925 */ 1926 int drm_mode_setcrtc(struct drm_device *dev, void *data, 1927 struct drm_file *file_priv) 1928 { 1929 struct drm_mode_config *config = &dev->mode_config; 1930 struct drm_mode_crtc *crtc_req = data; 1931 struct drm_mode_object *obj; 1932 struct drm_crtc *crtc; 1933 struct drm_connector **connector_set = NULL, *connector; 1934 struct drm_framebuffer *fb = NULL; 1935 struct drm_display_mode *mode = NULL; 1936 struct drm_mode_set set; 1937 uint32_t __user *set_connectors_ptr; 1938 int ret; 1939 int i; 1940 1941 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1942 return -EINVAL; 1943 1944 /* For some reason crtc x/y offsets are signed internally. */ 1945 if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX) 1946 return -ERANGE; 1947 1948 mutex_lock(&dev->mode_config.mutex); 1949 obj = drm_mode_object_find(dev, crtc_req->crtc_id, 1950 DRM_MODE_OBJECT_CRTC); 1951 if (!obj) { 1952 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); 1953 ret = -EINVAL; 1954 goto out; 1955 } 1956 crtc = obj_to_crtc(obj); 1957 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); 1958 1959 if (crtc_req->mode_valid) { 1960 int hdisplay, vdisplay; 1961 /* If we have a mode we need a framebuffer. */ 1962 /* If we pass -1, set the mode with the currently bound fb */ 1963 if (crtc_req->fb_id == -1) { 1964 if (!crtc->fb) { 1965 DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); 1966 ret = -EINVAL; 1967 goto out; 1968 } 1969 fb = crtc->fb; 1970 } else { 1971 obj = drm_mode_object_find(dev, crtc_req->fb_id, 1972 DRM_MODE_OBJECT_FB); 1973 if (!obj) { 1974 DRM_DEBUG_KMS("Unknown FB ID%d\n", 1975 crtc_req->fb_id); 1976 ret = -EINVAL; 1977 goto out; 1978 } 1979 fb = obj_to_fb(obj); 1980 } 1981 1982 mode = drm_mode_create(dev); 1983 if (!mode) { 1984 ret = -ENOMEM; 1985 goto out; 1986 } 1987 1988 ret = drm_crtc_convert_umode(mode, &crtc_req->mode); 1989 if (ret) { 1990 DRM_DEBUG_KMS("Invalid mode\n"); 1991 goto out; 1992 } 1993 1994 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); 1995 1996 hdisplay = mode->hdisplay; 1997 vdisplay = mode->vdisplay; 1998 1999 if (crtc->invert_dimensions) 2000 swap(hdisplay, vdisplay); 2001 2002 if (hdisplay > fb->width || 2003 vdisplay > fb->height || 2004 crtc_req->x > fb->width - hdisplay || 2005 crtc_req->y > fb->height - vdisplay) { 2006 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n", 2007 fb->width, fb->height, 2008 hdisplay, vdisplay, crtc_req->x, crtc_req->y, 2009 crtc->invert_dimensions ? " (inverted)" : ""); 2010 ret = -ENOSPC; 2011 goto out; 2012 } 2013 } 2014 2015 if (crtc_req->count_connectors == 0 && mode) { 2016 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); 2017 ret = -EINVAL; 2018 goto out; 2019 } 2020 2021 if (crtc_req->count_connectors > 0 && (!mode || !fb)) { 2022 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", 2023 crtc_req->count_connectors); 2024 ret = -EINVAL; 2025 goto out; 2026 } 2027 2028 if (crtc_req->count_connectors > 0) { 2029 u32 out_id; 2030 2031 /* Avoid unbounded kernel memory allocation */ 2032 if (crtc_req->count_connectors > config->num_connector) { 2033 ret = -EINVAL; 2034 goto out; 2035 } 2036 2037 connector_set = kmalloc(crtc_req->count_connectors * 2038 sizeof(struct drm_connector *), 2039 GFP_KERNEL); 2040 if (!connector_set) { 2041 ret = -ENOMEM; 2042 goto out; 2043 } 2044 2045 for (i = 0; i < crtc_req->count_connectors; i++) { 2046 set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; 2047 if (get_user(out_id, &set_connectors_ptr[i])) { 2048 ret = -EFAULT; 2049 goto out; 2050 } 2051 2052 obj = drm_mode_object_find(dev, out_id, 2053 DRM_MODE_OBJECT_CONNECTOR); 2054 if (!obj) { 2055 DRM_DEBUG_KMS("Connector id %d unknown\n", 2056 out_id); 2057 ret = -EINVAL; 2058 goto out; 2059 } 2060 connector = obj_to_connector(obj); 2061 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", 2062 connector->base.id, 2063 drm_get_connector_name(connector)); 2064 2065 connector_set[i] = connector; 2066 } 2067 } 2068 2069 set.crtc = crtc; 2070 set.x = crtc_req->x; 2071 set.y = crtc_req->y; 2072 set.mode = mode; 2073 set.connectors = connector_set; 2074 set.num_connectors = crtc_req->count_connectors; 2075 set.fb = fb; 2076 ret = crtc->funcs->set_config(&set); 2077 2078 out: 2079 kfree(connector_set); 2080 drm_mode_destroy(dev, mode); 2081 mutex_unlock(&dev->mode_config.mutex); 2082 return ret; 2083 } 2084 2085 int drm_mode_cursor_ioctl(struct drm_device *dev, 2086 void *data, struct drm_file *file_priv) 2087 { 2088 struct drm_mode_cursor *req = data; 2089 struct drm_mode_object *obj; 2090 struct drm_crtc *crtc; 2091 int ret = 0; 2092 2093 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2094 return -EINVAL; 2095 2096 if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) 2097 return -EINVAL; 2098 2099 mutex_lock(&dev->mode_config.mutex); 2100 obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC); 2101 if (!obj) { 2102 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); 2103 ret = -EINVAL; 2104 goto out; 2105 } 2106 crtc = obj_to_crtc(obj); 2107 2108 if (req->flags & DRM_MODE_CURSOR_BO) { 2109 if (!crtc->funcs->cursor_set) { 2110 ret = -ENXIO; 2111 goto out; 2112 } 2113 /* Turns off the cursor if handle is 0 */ 2114 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, 2115 req->width, req->height); 2116 } 2117 2118 if (req->flags & DRM_MODE_CURSOR_MOVE) { 2119 if (crtc->funcs->cursor_move) { 2120 ret = crtc->funcs->cursor_move(crtc, req->x, req->y); 2121 } else { 2122 ret = -EFAULT; 2123 goto out; 2124 } 2125 } 2126 out: 2127 mutex_unlock(&dev->mode_config.mutex); 2128 return ret; 2129 } 2130 2131 /* Original addfb only supported RGB formats, so figure out which one */ 2132 uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) 2133 { 2134 uint32_t fmt; 2135 2136 switch (bpp) { 2137 case 8: 2138 fmt = DRM_FORMAT_RGB332; 2139 break; 2140 case 16: 2141 if (depth == 15) 2142 fmt = DRM_FORMAT_XRGB1555; 2143 else 2144 fmt = DRM_FORMAT_RGB565; 2145 break; 2146 case 24: 2147 fmt = DRM_FORMAT_RGB888; 2148 break; 2149 case 32: 2150 if (depth == 24) 2151 fmt = DRM_FORMAT_XRGB8888; 2152 else if (depth == 30) 2153 fmt = DRM_FORMAT_XRGB2101010; 2154 else 2155 fmt = DRM_FORMAT_ARGB8888; 2156 break; 2157 default: 2158 DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); 2159 fmt = DRM_FORMAT_XRGB8888; 2160 break; 2161 } 2162 2163 return fmt; 2164 } 2165 EXPORT_SYMBOL(drm_mode_legacy_fb_format); 2166 2167 /** 2168 * drm_mode_addfb - add an FB to the graphics configuration 2169 * @inode: inode from the ioctl 2170 * @filp: file * from the ioctl 2171 * @cmd: cmd from ioctl 2172 * @arg: arg from ioctl 2173 * 2174 * LOCKING: 2175 * Takes mode config lock. 2176 * 2177 * Add a new FB to the specified CRTC, given a user request. 2178 * 2179 * Called by the user via ioctl. 2180 * 2181 * RETURNS: 2182 * Zero on success, errno on failure. 2183 */ 2184 int drm_mode_addfb(struct drm_device *dev, 2185 void *data, struct drm_file *file_priv) 2186 { 2187 struct drm_mode_fb_cmd *or = data; 2188 #ifdef __NetBSD__ /* XXX ...or just use memset. */ 2189 static const struct drm_mode_fb_cmd2 zero_fbcmd; 2190 struct drm_mode_fb_cmd2 r = zero_fbcmd; 2191 #else 2192 struct drm_mode_fb_cmd2 r = {}; 2193 #endif 2194 struct drm_mode_config *config = &dev->mode_config; 2195 struct drm_framebuffer *fb; 2196 int ret = 0; 2197 2198 /* Use new struct with format internally */ 2199 r.fb_id = or->fb_id; 2200 r.width = or->width; 2201 r.height = or->height; 2202 r.pitches[0] = or->pitch; 2203 r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); 2204 r.handles[0] = or->handle; 2205 2206 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2207 return -EINVAL; 2208 2209 if ((config->min_width > r.width) || (r.width > config->max_width)) 2210 return -EINVAL; 2211 2212 if ((config->min_height > r.height) || (r.height > config->max_height)) 2213 return -EINVAL; 2214 2215 mutex_lock(&dev->mode_config.mutex); 2216 2217 /* TODO check buffer is sufficiently large */ 2218 /* TODO setup destructor callback */ 2219 2220 fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r); 2221 if (IS_ERR(fb)) { 2222 DRM_DEBUG_KMS("could not create framebuffer\n"); 2223 ret = PTR_ERR(fb); 2224 goto out; 2225 } 2226 2227 or->fb_id = fb->base.id; 2228 list_add(&fb->filp_head, &file_priv->fbs); 2229 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); 2230 2231 out: 2232 mutex_unlock(&dev->mode_config.mutex); 2233 return ret; 2234 } 2235 2236 static int format_check(const struct drm_mode_fb_cmd2 *r) 2237 { 2238 uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; 2239 2240 switch (format) { 2241 case DRM_FORMAT_C8: 2242 case DRM_FORMAT_RGB332: 2243 case DRM_FORMAT_BGR233: 2244 case DRM_FORMAT_XRGB4444: 2245 case DRM_FORMAT_XBGR4444: 2246 case DRM_FORMAT_RGBX4444: 2247 case DRM_FORMAT_BGRX4444: 2248 case DRM_FORMAT_ARGB4444: 2249 case DRM_FORMAT_ABGR4444: 2250 case DRM_FORMAT_RGBA4444: 2251 case DRM_FORMAT_BGRA4444: 2252 case DRM_FORMAT_XRGB1555: 2253 case DRM_FORMAT_XBGR1555: 2254 case DRM_FORMAT_RGBX5551: 2255 case DRM_FORMAT_BGRX5551: 2256 case DRM_FORMAT_ARGB1555: 2257 case DRM_FORMAT_ABGR1555: 2258 case DRM_FORMAT_RGBA5551: 2259 case DRM_FORMAT_BGRA5551: 2260 case DRM_FORMAT_RGB565: 2261 case DRM_FORMAT_BGR565: 2262 case DRM_FORMAT_RGB888: 2263 case DRM_FORMAT_BGR888: 2264 case DRM_FORMAT_XRGB8888: 2265 case DRM_FORMAT_XBGR8888: 2266 case DRM_FORMAT_RGBX8888: 2267 case DRM_FORMAT_BGRX8888: 2268 case DRM_FORMAT_ARGB8888: 2269 case DRM_FORMAT_ABGR8888: 2270 case DRM_FORMAT_RGBA8888: 2271 case DRM_FORMAT_BGRA8888: 2272 case DRM_FORMAT_XRGB2101010: 2273 case DRM_FORMAT_XBGR2101010: 2274 case DRM_FORMAT_RGBX1010102: 2275 case DRM_FORMAT_BGRX1010102: 2276 case DRM_FORMAT_ARGB2101010: 2277 case DRM_FORMAT_ABGR2101010: 2278 case DRM_FORMAT_RGBA1010102: 2279 case DRM_FORMAT_BGRA1010102: 2280 case DRM_FORMAT_YUYV: 2281 case DRM_FORMAT_YVYU: 2282 case DRM_FORMAT_UYVY: 2283 case DRM_FORMAT_VYUY: 2284 case DRM_FORMAT_AYUV: 2285 case DRM_FORMAT_NV12: 2286 case DRM_FORMAT_NV21: 2287 case DRM_FORMAT_NV16: 2288 case DRM_FORMAT_NV61: 2289 case DRM_FORMAT_NV24: 2290 case DRM_FORMAT_NV42: 2291 case DRM_FORMAT_YUV410: 2292 case DRM_FORMAT_YVU410: 2293 case DRM_FORMAT_YUV411: 2294 case DRM_FORMAT_YVU411: 2295 case DRM_FORMAT_YUV420: 2296 case DRM_FORMAT_YVU420: 2297 case DRM_FORMAT_YUV422: 2298 case DRM_FORMAT_YVU422: 2299 case DRM_FORMAT_YUV444: 2300 case DRM_FORMAT_YVU444: 2301 return 0; 2302 default: 2303 return -EINVAL; 2304 } 2305 } 2306 2307 static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) 2308 { 2309 int ret, hsub, vsub, num_planes, i; 2310 2311 ret = format_check(r); 2312 if (ret) { 2313 DRM_DEBUG_KMS("bad framebuffer format 0x%08x\n", r->pixel_format); 2314 return ret; 2315 } 2316 2317 hsub = drm_format_horz_chroma_subsampling(r->pixel_format); 2318 vsub = drm_format_vert_chroma_subsampling(r->pixel_format); 2319 num_planes = drm_format_num_planes(r->pixel_format); 2320 2321 if (r->width == 0 || r->width % hsub) { 2322 DRM_DEBUG_KMS("bad framebuffer width %u\n", r->height); 2323 return -EINVAL; 2324 } 2325 2326 if (r->height == 0 || r->height % vsub) { 2327 DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); 2328 return -EINVAL; 2329 } 2330 2331 for (i = 0; i < num_planes; i++) { 2332 unsigned int width = r->width / (i != 0 ? hsub : 1); 2333 unsigned int height = r->height / (i != 0 ? vsub : 1); 2334 unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i); 2335 2336 if (!r->handles[i]) { 2337 DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); 2338 return -EINVAL; 2339 } 2340 2341 if ((uint64_t) width * cpp > UINT_MAX) 2342 return -ERANGE; 2343 2344 if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) 2345 return -ERANGE; 2346 2347 if (r->pitches[i] < width * cpp) { 2348 DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); 2349 return -EINVAL; 2350 } 2351 } 2352 2353 return 0; 2354 } 2355 2356 /** 2357 * drm_mode_addfb2 - add an FB to the graphics configuration 2358 * @inode: inode from the ioctl 2359 * @filp: file * from the ioctl 2360 * @cmd: cmd from ioctl 2361 * @arg: arg from ioctl 2362 * 2363 * LOCKING: 2364 * Takes mode config lock. 2365 * 2366 * Add a new FB to the specified CRTC, given a user request with format. 2367 * 2368 * Called by the user via ioctl. 2369 * 2370 * RETURNS: 2371 * Zero on success, errno on failure. 2372 */ 2373 int drm_mode_addfb2(struct drm_device *dev, 2374 void *data, struct drm_file *file_priv) 2375 { 2376 struct drm_mode_fb_cmd2 *r = data; 2377 struct drm_mode_config *config = &dev->mode_config; 2378 struct drm_framebuffer *fb; 2379 int ret; 2380 2381 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2382 return -EINVAL; 2383 2384 if (r->flags & ~DRM_MODE_FB_INTERLACED) { 2385 DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags); 2386 return -EINVAL; 2387 } 2388 2389 if ((config->min_width > r->width) || (r->width > config->max_width)) { 2390 DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", 2391 r->width, config->min_width, config->max_width); 2392 return -EINVAL; 2393 } 2394 if ((config->min_height > r->height) || (r->height > config->max_height)) { 2395 DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", 2396 r->height, config->min_height, config->max_height); 2397 return -EINVAL; 2398 } 2399 2400 ret = framebuffer_check(r); 2401 if (ret) 2402 return ret; 2403 2404 mutex_lock(&dev->mode_config.mutex); 2405 2406 fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); 2407 if (IS_ERR(fb)) { 2408 DRM_DEBUG_KMS("could not create framebuffer\n"); 2409 ret = PTR_ERR(fb); 2410 goto out; 2411 } 2412 2413 r->fb_id = fb->base.id; 2414 list_add(&fb->filp_head, &file_priv->fbs); 2415 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); 2416 2417 out: 2418 mutex_unlock(&dev->mode_config.mutex); 2419 return ret; 2420 } 2421 2422 /** 2423 * drm_mode_rmfb - remove an FB from the configuration 2424 * @inode: inode from the ioctl 2425 * @filp: file * from the ioctl 2426 * @cmd: cmd from ioctl 2427 * @arg: arg from ioctl 2428 * 2429 * LOCKING: 2430 * Takes mode config lock. 2431 * 2432 * Remove the FB specified by the user. 2433 * 2434 * Called by the user via ioctl. 2435 * 2436 * RETURNS: 2437 * Zero on success, errno on failure. 2438 */ 2439 int drm_mode_rmfb(struct drm_device *dev, 2440 void *data, struct drm_file *file_priv) 2441 { 2442 struct drm_mode_object *obj; 2443 struct drm_framebuffer *fb = NULL; 2444 struct drm_framebuffer *fbl = NULL; 2445 uint32_t *id = data; 2446 int ret = 0; 2447 int found = 0; 2448 2449 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2450 return -EINVAL; 2451 2452 mutex_lock(&dev->mode_config.mutex); 2453 obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB); 2454 /* TODO check that we really get a framebuffer back. */ 2455 if (!obj) { 2456 ret = -EINVAL; 2457 goto out; 2458 } 2459 fb = obj_to_fb(obj); 2460 2461 list_for_each_entry(fbl, &file_priv->fbs, filp_head) 2462 if (fb == fbl) 2463 found = 1; 2464 2465 if (!found) { 2466 ret = -EINVAL; 2467 goto out; 2468 } 2469 2470 drm_framebuffer_remove(fb); 2471 2472 out: 2473 mutex_unlock(&dev->mode_config.mutex); 2474 return ret; 2475 } 2476 2477 /** 2478 * drm_mode_getfb - get FB info 2479 * @inode: inode from the ioctl 2480 * @filp: file * from the ioctl 2481 * @cmd: cmd from ioctl 2482 * @arg: arg from ioctl 2483 * 2484 * LOCKING: 2485 * Takes mode config lock. 2486 * 2487 * Lookup the FB given its ID and return info about it. 2488 * 2489 * Called by the user via ioctl. 2490 * 2491 * RETURNS: 2492 * Zero on success, errno on failure. 2493 */ 2494 int drm_mode_getfb(struct drm_device *dev, 2495 void *data, struct drm_file *file_priv) 2496 { 2497 struct drm_mode_fb_cmd *r = data; 2498 struct drm_mode_object *obj; 2499 struct drm_framebuffer *fb; 2500 int ret = 0; 2501 2502 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2503 return -EINVAL; 2504 2505 mutex_lock(&dev->mode_config.mutex); 2506 obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB); 2507 if (!obj) { 2508 ret = -EINVAL; 2509 goto out; 2510 } 2511 fb = obj_to_fb(obj); 2512 2513 r->height = fb->height; 2514 r->width = fb->width; 2515 r->depth = fb->depth; 2516 r->bpp = fb->bits_per_pixel; 2517 r->pitch = fb->pitches[0]; 2518 fb->funcs->create_handle(fb, file_priv, &r->handle); 2519 2520 out: 2521 mutex_unlock(&dev->mode_config.mutex); 2522 return ret; 2523 } 2524 2525 int drm_mode_dirtyfb_ioctl(struct drm_device *dev, 2526 void *data, struct drm_file *file_priv) 2527 { 2528 struct drm_clip_rect __user *clips_ptr; 2529 struct drm_clip_rect *clips = NULL; 2530 struct drm_mode_fb_dirty_cmd *r = data; 2531 struct drm_mode_object *obj; 2532 struct drm_framebuffer *fb; 2533 unsigned flags; 2534 int num_clips; 2535 int ret; 2536 2537 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2538 return -EINVAL; 2539 2540 mutex_lock(&dev->mode_config.mutex); 2541 obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB); 2542 if (!obj) { 2543 ret = -EINVAL; 2544 goto out_err1; 2545 } 2546 fb = obj_to_fb(obj); 2547 2548 num_clips = r->num_clips; 2549 clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; 2550 2551 if (!num_clips != !clips_ptr) { 2552 ret = -EINVAL; 2553 goto out_err1; 2554 } 2555 2556 flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; 2557 2558 /* If userspace annotates copy, clips must come in pairs */ 2559 if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { 2560 ret = -EINVAL; 2561 goto out_err1; 2562 } 2563 2564 if (num_clips && clips_ptr) { 2565 if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { 2566 ret = -EINVAL; 2567 goto out_err1; 2568 } 2569 clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL); 2570 if (!clips) { 2571 ret = -ENOMEM; 2572 goto out_err1; 2573 } 2574 2575 ret = copy_from_user(clips, clips_ptr, 2576 num_clips * sizeof(*clips)); 2577 if (ret) { 2578 ret = -EFAULT; 2579 goto out_err2; 2580 } 2581 } 2582 2583 if (fb->funcs->dirty) { 2584 ret = fb->funcs->dirty(fb, file_priv, flags, r->color, 2585 clips, num_clips); 2586 } else { 2587 ret = -ENOSYS; 2588 goto out_err2; 2589 } 2590 2591 out_err2: 2592 kfree(clips); 2593 out_err1: 2594 mutex_unlock(&dev->mode_config.mutex); 2595 return ret; 2596 } 2597 2598 2599 /** 2600 * drm_fb_release - remove and free the FBs on this file 2601 * @filp: file * from the ioctl 2602 * 2603 * LOCKING: 2604 * Takes mode config lock. 2605 * 2606 * Destroy all the FBs associated with @filp. 2607 * 2608 * Called by the user via ioctl. 2609 * 2610 * RETURNS: 2611 * Zero on success, errno on failure. 2612 */ 2613 void drm_fb_release(struct drm_file *priv) 2614 { 2615 struct drm_device *dev = priv->minor->dev; 2616 struct drm_framebuffer *fb, *tfb; 2617 2618 mutex_lock(&dev->mode_config.mutex); 2619 list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { 2620 drm_framebuffer_remove(fb); 2621 } 2622 mutex_unlock(&dev->mode_config.mutex); 2623 } 2624 2625 /** 2626 * drm_mode_attachmode - add a mode to the user mode list 2627 * @dev: DRM device 2628 * @connector: connector to add the mode to 2629 * @mode: mode to add 2630 * 2631 * Add @mode to @connector's user mode list. 2632 */ 2633 static void drm_mode_attachmode(struct drm_device *dev, 2634 struct drm_connector *connector, 2635 struct drm_display_mode *mode) 2636 { 2637 list_add_tail(&mode->head, &connector->user_modes); 2638 } 2639 2640 int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc, 2641 const struct drm_display_mode *mode) 2642 { 2643 struct drm_connector *connector; 2644 int ret = 0; 2645 struct drm_display_mode *dup_mode, *next; 2646 #ifdef __NetBSD__ 2647 /* LIST_HEAD has another meaning in NetBSD. */ 2648 struct list_head list = LIST_HEAD_INIT(list); 2649 #else 2650 LIST_HEAD(list); 2651 #endif 2652 2653 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 2654 if (!connector->encoder) 2655 continue; 2656 if (connector->encoder->crtc == crtc) { 2657 dup_mode = drm_mode_duplicate(dev, mode); 2658 if (!dup_mode) { 2659 ret = -ENOMEM; 2660 goto out; 2661 } 2662 list_add_tail(&dup_mode->head, &list); 2663 } 2664 } 2665 2666 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 2667 if (!connector->encoder) 2668 continue; 2669 if (connector->encoder->crtc == crtc) 2670 #ifdef __NetBSD__ 2671 list_move_tail(list_next(&list), 2672 &connector->user_modes); 2673 #else 2674 list_move_tail(list.next, &connector->user_modes); 2675 #endif 2676 } 2677 2678 WARN_ON(!list_empty(&list)); 2679 2680 out: 2681 list_for_each_entry_safe(dup_mode, next, &list, head) 2682 drm_mode_destroy(dev, dup_mode); 2683 2684 return ret; 2685 } 2686 EXPORT_SYMBOL(drm_mode_attachmode_crtc); 2687 2688 static int drm_mode_detachmode(struct drm_device *dev, 2689 struct drm_connector *connector, 2690 struct drm_display_mode *mode) 2691 { 2692 int found = 0; 2693 int ret = 0; 2694 struct drm_display_mode *match_mode, *t; 2695 2696 list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) { 2697 if (drm_mode_equal(match_mode, mode)) { 2698 list_del(&match_mode->head); 2699 drm_mode_destroy(dev, match_mode); 2700 found = 1; 2701 break; 2702 } 2703 } 2704 2705 if (!found) 2706 ret = -EINVAL; 2707 2708 return ret; 2709 } 2710 2711 int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode) 2712 { 2713 struct drm_connector *connector; 2714 2715 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 2716 drm_mode_detachmode(dev, connector, mode); 2717 } 2718 return 0; 2719 } 2720 EXPORT_SYMBOL(drm_mode_detachmode_crtc); 2721 2722 /** 2723 * drm_fb_attachmode - Attach a user mode to an connector 2724 * @inode: inode from the ioctl 2725 * @filp: file * from the ioctl 2726 * @cmd: cmd from ioctl 2727 * @arg: arg from ioctl 2728 * 2729 * This attaches a user specified mode to an connector. 2730 * Called by the user via ioctl. 2731 * 2732 * RETURNS: 2733 * Zero on success, errno on failure. 2734 */ 2735 int drm_mode_attachmode_ioctl(struct drm_device *dev, 2736 void *data, struct drm_file *file_priv) 2737 { 2738 struct drm_mode_mode_cmd *mode_cmd = data; 2739 struct drm_connector *connector; 2740 struct drm_display_mode *mode; 2741 struct drm_mode_object *obj; 2742 struct drm_mode_modeinfo *umode = &mode_cmd->mode; 2743 int ret; 2744 2745 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2746 return -EINVAL; 2747 2748 mutex_lock(&dev->mode_config.mutex); 2749 2750 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR); 2751 if (!obj) { 2752 ret = -EINVAL; 2753 goto out; 2754 } 2755 connector = obj_to_connector(obj); 2756 2757 mode = drm_mode_create(dev); 2758 if (!mode) { 2759 ret = -ENOMEM; 2760 goto out; 2761 } 2762 2763 ret = drm_crtc_convert_umode(mode, umode); 2764 if (ret) { 2765 DRM_DEBUG_KMS("Invalid mode\n"); 2766 drm_mode_destroy(dev, mode); 2767 goto out; 2768 } 2769 2770 drm_mode_attachmode(dev, connector, mode); 2771 out: 2772 mutex_unlock(&dev->mode_config.mutex); 2773 return ret; 2774 } 2775 2776 2777 /** 2778 * drm_fb_detachmode - Detach a user specified mode from an connector 2779 * @inode: inode from the ioctl 2780 * @filp: file * from the ioctl 2781 * @cmd: cmd from ioctl 2782 * @arg: arg from ioctl 2783 * 2784 * Called by the user via ioctl. 2785 * 2786 * RETURNS: 2787 * Zero on success, errno on failure. 2788 */ 2789 int drm_mode_detachmode_ioctl(struct drm_device *dev, 2790 void *data, struct drm_file *file_priv) 2791 { 2792 struct drm_mode_object *obj; 2793 struct drm_mode_mode_cmd *mode_cmd = data; 2794 struct drm_connector *connector; 2795 struct drm_display_mode mode; 2796 struct drm_mode_modeinfo *umode = &mode_cmd->mode; 2797 int ret; 2798 2799 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2800 return -EINVAL; 2801 2802 mutex_lock(&dev->mode_config.mutex); 2803 2804 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR); 2805 if (!obj) { 2806 ret = -EINVAL; 2807 goto out; 2808 } 2809 connector = obj_to_connector(obj); 2810 2811 ret = drm_crtc_convert_umode(&mode, umode); 2812 if (ret) { 2813 DRM_DEBUG_KMS("Invalid mode\n"); 2814 goto out; 2815 } 2816 2817 ret = drm_mode_detachmode(dev, connector, &mode); 2818 out: 2819 mutex_unlock(&dev->mode_config.mutex); 2820 return ret; 2821 } 2822 2823 struct drm_property *drm_property_create(struct drm_device *dev, int flags, 2824 const char *name, int num_values) 2825 { 2826 struct drm_property *property = NULL; 2827 int ret; 2828 2829 property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); 2830 if (!property) 2831 return NULL; 2832 2833 if (num_values) { 2834 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL); 2835 if (!property->values) 2836 goto fail; 2837 } 2838 2839 ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); 2840 if (ret) 2841 goto fail; 2842 2843 property->flags = flags; 2844 property->num_values = num_values; 2845 INIT_LIST_HEAD(&property->enum_blob_list); 2846 2847 if (name) { 2848 strncpy(property->name, name, DRM_PROP_NAME_LEN); 2849 property->name[DRM_PROP_NAME_LEN-1] = '\0'; 2850 } 2851 2852 list_add_tail(&property->head, &dev->mode_config.property_list); 2853 return property; 2854 fail: 2855 kfree(property->values); 2856 kfree(property); 2857 return NULL; 2858 } 2859 EXPORT_SYMBOL(drm_property_create); 2860 2861 struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, 2862 const char *name, 2863 const struct drm_prop_enum_list *props, 2864 int num_values) 2865 { 2866 struct drm_property *property; 2867 int i, ret; 2868 2869 flags |= DRM_MODE_PROP_ENUM; 2870 2871 property = drm_property_create(dev, flags, name, num_values); 2872 if (!property) 2873 return NULL; 2874 2875 for (i = 0; i < num_values; i++) { 2876 ret = drm_property_add_enum(property, i, 2877 props[i].type, 2878 props[i].name); 2879 if (ret) { 2880 drm_property_destroy(dev, property); 2881 return NULL; 2882 } 2883 } 2884 2885 return property; 2886 } 2887 EXPORT_SYMBOL(drm_property_create_enum); 2888 2889 struct drm_property *drm_property_create_bitmask(struct drm_device *dev, 2890 int flags, const char *name, 2891 const struct drm_prop_enum_list *props, 2892 int num_values) 2893 { 2894 struct drm_property *property; 2895 int i, ret; 2896 2897 flags |= DRM_MODE_PROP_BITMASK; 2898 2899 property = drm_property_create(dev, flags, name, num_values); 2900 if (!property) 2901 return NULL; 2902 2903 for (i = 0; i < num_values; i++) { 2904 ret = drm_property_add_enum(property, i, 2905 props[i].type, 2906 props[i].name); 2907 if (ret) { 2908 drm_property_destroy(dev, property); 2909 return NULL; 2910 } 2911 } 2912 2913 return property; 2914 } 2915 EXPORT_SYMBOL(drm_property_create_bitmask); 2916 2917 struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, 2918 const char *name, 2919 uint64_t min, uint64_t max) 2920 { 2921 struct drm_property *property; 2922 2923 flags |= DRM_MODE_PROP_RANGE; 2924 2925 property = drm_property_create(dev, flags, name, 2); 2926 if (!property) 2927 return NULL; 2928 2929 property->values[0] = min; 2930 property->values[1] = max; 2931 2932 return property; 2933 } 2934 EXPORT_SYMBOL(drm_property_create_range); 2935 2936 int drm_property_add_enum(struct drm_property *property, int index, 2937 uint64_t value, const char *name) 2938 { 2939 struct drm_property_enum *prop_enum; 2940 2941 if (!(property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK))) 2942 return -EINVAL; 2943 2944 /* 2945 * Bitmask enum properties have the additional constraint of values 2946 * from 0 to 63 2947 */ 2948 if ((property->flags & DRM_MODE_PROP_BITMASK) && (value > 63)) 2949 return -EINVAL; 2950 2951 if (!list_empty(&property->enum_blob_list)) { 2952 list_for_each_entry(prop_enum, &property->enum_blob_list, head) { 2953 if (prop_enum->value == value) { 2954 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); 2955 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; 2956 return 0; 2957 } 2958 } 2959 } 2960 2961 prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); 2962 if (!prop_enum) 2963 return -ENOMEM; 2964 2965 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); 2966 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; 2967 prop_enum->value = value; 2968 2969 property->values[index] = value; 2970 list_add_tail(&prop_enum->head, &property->enum_blob_list); 2971 return 0; 2972 } 2973 EXPORT_SYMBOL(drm_property_add_enum); 2974 2975 void drm_property_destroy(struct drm_device *dev, struct drm_property *property) 2976 { 2977 struct drm_property_enum *prop_enum, *pt; 2978 2979 list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) { 2980 list_del(&prop_enum->head); 2981 kfree(prop_enum); 2982 } 2983 2984 if (property->num_values) 2985 kfree(property->values); 2986 drm_mode_object_put(dev, &property->base); 2987 list_del(&property->head); 2988 kfree(property); 2989 } 2990 EXPORT_SYMBOL(drm_property_destroy); 2991 2992 void drm_object_attach_property(struct drm_mode_object *obj, 2993 struct drm_property *property, 2994 uint64_t init_val) 2995 { 2996 int count = obj->properties->count; 2997 2998 if (count == DRM_OBJECT_MAX_PROPERTY) { 2999 WARN(1, "Failed to attach object property (type: 0x%x). Please " 3000 "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time " 3001 "you see this message on the same object type.\n", 3002 obj->type); 3003 return; 3004 } 3005 3006 obj->properties->ids[count] = property->base.id; 3007 obj->properties->values[count] = init_val; 3008 obj->properties->count++; 3009 } 3010 EXPORT_SYMBOL(drm_object_attach_property); 3011 3012 int drm_object_property_set_value(struct drm_mode_object *obj, 3013 struct drm_property *property, uint64_t val) 3014 { 3015 int i; 3016 3017 for (i = 0; i < obj->properties->count; i++) { 3018 if (obj->properties->ids[i] == property->base.id) { 3019 obj->properties->values[i] = val; 3020 return 0; 3021 } 3022 } 3023 3024 return -EINVAL; 3025 } 3026 EXPORT_SYMBOL(drm_object_property_set_value); 3027 3028 int drm_object_property_get_value(struct drm_mode_object *obj, 3029 struct drm_property *property, uint64_t *val) 3030 { 3031 int i; 3032 3033 for (i = 0; i < obj->properties->count; i++) { 3034 if (obj->properties->ids[i] == property->base.id) { 3035 *val = obj->properties->values[i]; 3036 return 0; 3037 } 3038 } 3039 3040 return -EINVAL; 3041 } 3042 EXPORT_SYMBOL(drm_object_property_get_value); 3043 3044 int drm_mode_getproperty_ioctl(struct drm_device *dev, 3045 void *data, struct drm_file *file_priv) 3046 { 3047 struct drm_mode_object *obj; 3048 struct drm_mode_get_property *out_resp = data; 3049 struct drm_property *property; 3050 int enum_count = 0; 3051 int blob_count = 0; 3052 int value_count = 0; 3053 int ret = 0, i; 3054 int copied; 3055 struct drm_property_enum *prop_enum; 3056 struct drm_mode_property_enum __user *enum_ptr; 3057 struct drm_property_blob *prop_blob; 3058 uint32_t __user *blob_id_ptr; 3059 uint64_t __user *values_ptr; 3060 uint32_t __user *blob_length_ptr; 3061 3062 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3063 return -EINVAL; 3064 3065 mutex_lock(&dev->mode_config.mutex); 3066 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY); 3067 if (!obj) { 3068 ret = -EINVAL; 3069 goto done; 3070 } 3071 property = obj_to_property(obj); 3072 3073 if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) { 3074 list_for_each_entry(prop_enum, &property->enum_blob_list, head) 3075 enum_count++; 3076 } else if (property->flags & DRM_MODE_PROP_BLOB) { 3077 list_for_each_entry(prop_blob, &property->enum_blob_list, head) 3078 blob_count++; 3079 } 3080 3081 value_count = property->num_values; 3082 3083 strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); 3084 out_resp->name[DRM_PROP_NAME_LEN-1] = 0; 3085 out_resp->flags = property->flags; 3086 3087 if ((out_resp->count_values >= value_count) && value_count) { 3088 values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; 3089 for (i = 0; i < value_count; i++) { 3090 if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { 3091 ret = -EFAULT; 3092 goto done; 3093 } 3094 } 3095 } 3096 out_resp->count_values = value_count; 3097 3098 if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) { 3099 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { 3100 copied = 0; 3101 enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; 3102 list_for_each_entry(prop_enum, &property->enum_blob_list, head) { 3103 3104 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { 3105 ret = -EFAULT; 3106 goto done; 3107 } 3108 3109 if (copy_to_user(&enum_ptr[copied].name, 3110 &prop_enum->name, DRM_PROP_NAME_LEN)) { 3111 ret = -EFAULT; 3112 goto done; 3113 } 3114 copied++; 3115 } 3116 } 3117 out_resp->count_enum_blobs = enum_count; 3118 } 3119 3120 if (property->flags & DRM_MODE_PROP_BLOB) { 3121 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) { 3122 copied = 0; 3123 blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr; 3124 blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr; 3125 3126 list_for_each_entry(prop_blob, &property->enum_blob_list, head) { 3127 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) { 3128 ret = -EFAULT; 3129 goto done; 3130 } 3131 3132 if (put_user(prop_blob->length, blob_length_ptr + copied)) { 3133 ret = -EFAULT; 3134 goto done; 3135 } 3136 3137 copied++; 3138 } 3139 } 3140 out_resp->count_enum_blobs = blob_count; 3141 } 3142 done: 3143 mutex_unlock(&dev->mode_config.mutex); 3144 return ret; 3145 } 3146 3147 static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length, 3148 void *data) 3149 { 3150 struct drm_property_blob *blob; 3151 int ret; 3152 3153 if (!length || !data) 3154 return NULL; 3155 3156 blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); 3157 if (!blob) 3158 return NULL; 3159 3160 ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); 3161 if (ret) { 3162 kfree(blob); 3163 return NULL; 3164 } 3165 3166 blob->length = length; 3167 3168 memcpy(blob->data, data, length); 3169 3170 list_add_tail(&blob->head, &dev->mode_config.property_blob_list); 3171 return blob; 3172 } 3173 3174 static void drm_property_destroy_blob(struct drm_device *dev, 3175 struct drm_property_blob *blob) 3176 { 3177 drm_mode_object_put(dev, &blob->base); 3178 list_del(&blob->head); 3179 kfree(blob); 3180 } 3181 3182 int drm_mode_getblob_ioctl(struct drm_device *dev, 3183 void *data, struct drm_file *file_priv) 3184 { 3185 struct drm_mode_object *obj; 3186 struct drm_mode_get_blob *out_resp = data; 3187 struct drm_property_blob *blob; 3188 int ret = 0; 3189 void __user *blob_ptr; 3190 3191 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3192 return -EINVAL; 3193 3194 mutex_lock(&dev->mode_config.mutex); 3195 obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB); 3196 if (!obj) { 3197 ret = -EINVAL; 3198 goto done; 3199 } 3200 blob = obj_to_blob(obj); 3201 3202 if (out_resp->length == blob->length) { 3203 blob_ptr = (void __user *)(unsigned long)out_resp->data; 3204 if (copy_to_user(blob_ptr, blob->data, blob->length)){ 3205 ret = -EFAULT; 3206 goto done; 3207 } 3208 } 3209 out_resp->length = blob->length; 3210 3211 done: 3212 mutex_unlock(&dev->mode_config.mutex); 3213 return ret; 3214 } 3215 3216 int drm_mode_connector_update_edid_property(struct drm_connector *connector, 3217 struct edid *edid) 3218 { 3219 struct drm_device *dev = connector->dev; 3220 int ret, size; 3221 3222 if (connector->edid_blob_ptr) 3223 drm_property_destroy_blob(dev, connector->edid_blob_ptr); 3224 3225 /* Delete edid, when there is none. */ 3226 if (!edid) { 3227 connector->edid_blob_ptr = NULL; 3228 ret = drm_object_property_set_value(&connector->base, dev->mode_config.edid_property, 0); 3229 return ret; 3230 } 3231 3232 size = EDID_LENGTH * (1 + edid->extensions); 3233 connector->edid_blob_ptr = drm_property_create_blob(connector->dev, 3234 size, edid); 3235 if (!connector->edid_blob_ptr) 3236 return -EINVAL; 3237 3238 ret = drm_object_property_set_value(&connector->base, 3239 dev->mode_config.edid_property, 3240 connector->edid_blob_ptr->base.id); 3241 3242 return ret; 3243 } 3244 EXPORT_SYMBOL(drm_mode_connector_update_edid_property); 3245 3246 static bool drm_property_change_is_valid(struct drm_property *property, 3247 uint64_t value) 3248 { 3249 if (property->flags & DRM_MODE_PROP_IMMUTABLE) 3250 return false; 3251 if (property->flags & DRM_MODE_PROP_RANGE) { 3252 if (value < property->values[0] || value > property->values[1]) 3253 return false; 3254 return true; 3255 } else if (property->flags & DRM_MODE_PROP_BITMASK) { 3256 int i; 3257 uint64_t valid_mask = 0; 3258 for (i = 0; i < property->num_values; i++) 3259 valid_mask |= (1ULL << property->values[i]); 3260 return !(value & ~valid_mask); 3261 } else if (property->flags & DRM_MODE_PROP_BLOB) { 3262 /* Only the driver knows */ 3263 return true; 3264 } else { 3265 int i; 3266 for (i = 0; i < property->num_values; i++) 3267 if (property->values[i] == value) 3268 return true; 3269 return false; 3270 } 3271 } 3272 3273 int drm_mode_connector_property_set_ioctl(struct drm_device *dev, 3274 void *data, struct drm_file *file_priv) 3275 { 3276 struct drm_mode_connector_set_property *conn_set_prop = data; 3277 struct drm_mode_obj_set_property obj_set_prop = { 3278 .value = conn_set_prop->value, 3279 .prop_id = conn_set_prop->prop_id, 3280 .obj_id = conn_set_prop->connector_id, 3281 .obj_type = DRM_MODE_OBJECT_CONNECTOR 3282 }; 3283 3284 /* It does all the locking and checking we need */ 3285 return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv); 3286 } 3287 3288 static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, 3289 struct drm_property *property, 3290 uint64_t value) 3291 { 3292 int ret = -EINVAL; 3293 struct drm_connector *connector = obj_to_connector(obj); 3294 3295 /* Do DPMS ourselves */ 3296 if (property == connector->dev->mode_config.dpms_property) { 3297 if (connector->funcs->dpms) 3298 (*connector->funcs->dpms)(connector, (int)value); 3299 ret = 0; 3300 } else if (connector->funcs->set_property) 3301 ret = connector->funcs->set_property(connector, property, value); 3302 3303 /* store the property value if successful */ 3304 if (!ret) 3305 drm_object_property_set_value(&connector->base, property, value); 3306 return ret; 3307 } 3308 3309 static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, 3310 struct drm_property *property, 3311 uint64_t value) 3312 { 3313 int ret = -EINVAL; 3314 struct drm_crtc *crtc = obj_to_crtc(obj); 3315 3316 if (crtc->funcs->set_property) 3317 ret = crtc->funcs->set_property(crtc, property, value); 3318 if (!ret) 3319 drm_object_property_set_value(obj, property, value); 3320 3321 return ret; 3322 } 3323 3324 static int drm_mode_plane_set_obj_prop(struct drm_mode_object *obj, 3325 struct drm_property *property, 3326 uint64_t value) 3327 { 3328 int ret = -EINVAL; 3329 struct drm_plane *plane = obj_to_plane(obj); 3330 3331 if (plane->funcs->set_property) 3332 ret = plane->funcs->set_property(plane, property, value); 3333 if (!ret) 3334 drm_object_property_set_value(obj, property, value); 3335 3336 return ret; 3337 } 3338 3339 int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, 3340 struct drm_file *file_priv) 3341 { 3342 struct drm_mode_obj_get_properties *arg = data; 3343 struct drm_mode_object *obj; 3344 int ret = 0; 3345 int i; 3346 int copied = 0; 3347 int props_count = 0; 3348 uint32_t __user *props_ptr; 3349 uint64_t __user *prop_values_ptr; 3350 3351 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3352 return -EINVAL; 3353 3354 mutex_lock(&dev->mode_config.mutex); 3355 3356 obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); 3357 if (!obj) { 3358 ret = -EINVAL; 3359 goto out; 3360 } 3361 if (!obj->properties) { 3362 ret = -EINVAL; 3363 goto out; 3364 } 3365 3366 props_count = obj->properties->count; 3367 3368 /* This ioctl is called twice, once to determine how much space is 3369 * needed, and the 2nd time to fill it. */ 3370 if ((arg->count_props >= props_count) && props_count) { 3371 copied = 0; 3372 props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr); 3373 prop_values_ptr = (uint64_t __user *)(unsigned long) 3374 (arg->prop_values_ptr); 3375 for (i = 0; i < props_count; i++) { 3376 if (put_user(obj->properties->ids[i], 3377 props_ptr + copied)) { 3378 ret = -EFAULT; 3379 goto out; 3380 } 3381 if (put_user(obj->properties->values[i], 3382 prop_values_ptr + copied)) { 3383 ret = -EFAULT; 3384 goto out; 3385 } 3386 copied++; 3387 } 3388 } 3389 arg->count_props = props_count; 3390 out: 3391 mutex_unlock(&dev->mode_config.mutex); 3392 return ret; 3393 } 3394 3395 int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, 3396 struct drm_file *file_priv) 3397 { 3398 struct drm_mode_obj_set_property *arg = data; 3399 struct drm_mode_object *arg_obj; 3400 struct drm_mode_object *prop_obj; 3401 struct drm_property *property; 3402 int ret = -EINVAL; 3403 int i; 3404 3405 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3406 return -EINVAL; 3407 3408 mutex_lock(&dev->mode_config.mutex); 3409 3410 arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); 3411 if (!arg_obj) 3412 goto out; 3413 if (!arg_obj->properties) 3414 goto out; 3415 3416 for (i = 0; i < arg_obj->properties->count; i++) 3417 if (arg_obj->properties->ids[i] == arg->prop_id) 3418 break; 3419 3420 if (i == arg_obj->properties->count) 3421 goto out; 3422 3423 prop_obj = drm_mode_object_find(dev, arg->prop_id, 3424 DRM_MODE_OBJECT_PROPERTY); 3425 if (!prop_obj) 3426 goto out; 3427 property = obj_to_property(prop_obj); 3428 3429 if (!drm_property_change_is_valid(property, arg->value)) 3430 goto out; 3431 3432 switch (arg_obj->type) { 3433 case DRM_MODE_OBJECT_CONNECTOR: 3434 ret = drm_mode_connector_set_obj_prop(arg_obj, property, 3435 arg->value); 3436 break; 3437 case DRM_MODE_OBJECT_CRTC: 3438 ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value); 3439 break; 3440 case DRM_MODE_OBJECT_PLANE: 3441 ret = drm_mode_plane_set_obj_prop(arg_obj, property, arg->value); 3442 break; 3443 } 3444 3445 out: 3446 mutex_unlock(&dev->mode_config.mutex); 3447 return ret; 3448 } 3449 3450 int drm_mode_connector_attach_encoder(struct drm_connector *connector, 3451 struct drm_encoder *encoder) 3452 { 3453 int i; 3454 3455 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 3456 if (connector->encoder_ids[i] == 0) { 3457 connector->encoder_ids[i] = encoder->base.id; 3458 return 0; 3459 } 3460 } 3461 return -ENOMEM; 3462 } 3463 EXPORT_SYMBOL(drm_mode_connector_attach_encoder); 3464 3465 void drm_mode_connector_detach_encoder(struct drm_connector *connector, 3466 struct drm_encoder *encoder) 3467 { 3468 int i; 3469 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 3470 if (connector->encoder_ids[i] == encoder->base.id) { 3471 connector->encoder_ids[i] = 0; 3472 if (connector->encoder == encoder) 3473 connector->encoder = NULL; 3474 break; 3475 } 3476 } 3477 } 3478 EXPORT_SYMBOL(drm_mode_connector_detach_encoder); 3479 3480 int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, 3481 int gamma_size) 3482 { 3483 crtc->gamma_size = gamma_size; 3484 3485 crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL); 3486 if (!crtc->gamma_store) { 3487 crtc->gamma_size = 0; 3488 return -ENOMEM; 3489 } 3490 3491 return 0; 3492 } 3493 EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); 3494 3495 int drm_mode_gamma_set_ioctl(struct drm_device *dev, 3496 void *data, struct drm_file *file_priv) 3497 { 3498 struct drm_mode_crtc_lut *crtc_lut = data; 3499 struct drm_mode_object *obj; 3500 struct drm_crtc *crtc; 3501 void *r_base, *g_base, *b_base; 3502 int size; 3503 int ret = 0; 3504 3505 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3506 return -EINVAL; 3507 3508 mutex_lock(&dev->mode_config.mutex); 3509 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); 3510 if (!obj) { 3511 ret = -EINVAL; 3512 goto out; 3513 } 3514 crtc = obj_to_crtc(obj); 3515 3516 if (crtc->funcs->gamma_set == NULL) { 3517 ret = -ENOSYS; 3518 goto out; 3519 } 3520 3521 /* memcpy into gamma store */ 3522 if (crtc_lut->gamma_size != crtc->gamma_size) { 3523 ret = -EINVAL; 3524 goto out; 3525 } 3526 3527 size = crtc_lut->gamma_size * (sizeof(uint16_t)); 3528 r_base = crtc->gamma_store; 3529 if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { 3530 ret = -EFAULT; 3531 goto out; 3532 } 3533 3534 #ifdef __NetBSD__ 3535 g_base = (char *)r_base + size; 3536 #else 3537 g_base = r_base + size; 3538 #endif 3539 if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { 3540 ret = -EFAULT; 3541 goto out; 3542 } 3543 3544 #ifdef __NetBSD__ 3545 b_base = (char *)g_base + size; 3546 #else 3547 b_base = g_base + size; 3548 #endif 3549 if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { 3550 ret = -EFAULT; 3551 goto out; 3552 } 3553 3554 crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); 3555 3556 out: 3557 mutex_unlock(&dev->mode_config.mutex); 3558 return ret; 3559 3560 } 3561 3562 int drm_mode_gamma_get_ioctl(struct drm_device *dev, 3563 void *data, struct drm_file *file_priv) 3564 { 3565 struct drm_mode_crtc_lut *crtc_lut = data; 3566 struct drm_mode_object *obj; 3567 struct drm_crtc *crtc; 3568 void *r_base, *g_base, *b_base; 3569 int size; 3570 int ret = 0; 3571 3572 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3573 return -EINVAL; 3574 3575 mutex_lock(&dev->mode_config.mutex); 3576 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); 3577 if (!obj) { 3578 ret = -EINVAL; 3579 goto out; 3580 } 3581 crtc = obj_to_crtc(obj); 3582 3583 /* memcpy into gamma store */ 3584 if (crtc_lut->gamma_size != crtc->gamma_size) { 3585 ret = -EINVAL; 3586 goto out; 3587 } 3588 3589 size = crtc_lut->gamma_size * (sizeof(uint16_t)); 3590 r_base = crtc->gamma_store; 3591 if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { 3592 ret = -EFAULT; 3593 goto out; 3594 } 3595 3596 #ifdef __NetBSD__ 3597 g_base = (char *)r_base + size; 3598 #else 3599 g_base = r_base + size; 3600 #endif 3601 if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { 3602 ret = -EFAULT; 3603 goto out; 3604 } 3605 3606 #ifdef __NetBSD__ 3607 b_base = (char *)g_base + size; 3608 #else 3609 b_base = g_base + size; 3610 #endif 3611 if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { 3612 ret = -EFAULT; 3613 goto out; 3614 } 3615 out: 3616 mutex_unlock(&dev->mode_config.mutex); 3617 return ret; 3618 } 3619 3620 int drm_mode_page_flip_ioctl(struct drm_device *dev, 3621 void *data, struct drm_file *file_priv) 3622 { 3623 struct drm_mode_crtc_page_flip *page_flip = data; 3624 struct drm_mode_object *obj; 3625 struct drm_crtc *crtc; 3626 struct drm_framebuffer *fb; 3627 struct drm_pending_vblank_event *e = NULL; 3628 unsigned long flags; 3629 int hdisplay, vdisplay; 3630 int ret = -EINVAL; 3631 3632 if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS || 3633 page_flip->reserved != 0) 3634 return -EINVAL; 3635 3636 mutex_lock(&dev->mode_config.mutex); 3637 obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC); 3638 if (!obj) 3639 goto out; 3640 crtc = obj_to_crtc(obj); 3641 3642 if (crtc->fb == NULL) { 3643 /* The framebuffer is currently unbound, presumably 3644 * due to a hotplug event, that userspace has not 3645 * yet discovered. 3646 */ 3647 ret = -EBUSY; 3648 goto out; 3649 } 3650 3651 if (crtc->funcs->page_flip == NULL) 3652 goto out; 3653 3654 obj = drm_mode_object_find(dev, page_flip->fb_id, DRM_MODE_OBJECT_FB); 3655 if (!obj) 3656 goto out; 3657 fb = obj_to_fb(obj); 3658 3659 hdisplay = crtc->mode.hdisplay; 3660 vdisplay = crtc->mode.vdisplay; 3661 3662 if (crtc->invert_dimensions) 3663 swap(hdisplay, vdisplay); 3664 3665 if (hdisplay > fb->width || 3666 vdisplay > fb->height || 3667 crtc->x > fb->width - hdisplay || 3668 crtc->y > fb->height - vdisplay) { 3669 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n", 3670 fb->width, fb->height, hdisplay, vdisplay, crtc->x, crtc->y, 3671 crtc->invert_dimensions ? " (inverted)" : ""); 3672 ret = -ENOSPC; 3673 goto out; 3674 } 3675 3676 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { 3677 ret = -ENOMEM; 3678 spin_lock_irqsave(&dev->event_lock, flags); 3679 if (file_priv->event_space < sizeof e->event) { 3680 spin_unlock_irqrestore(&dev->event_lock, flags); 3681 goto out; 3682 } 3683 file_priv->event_space -= sizeof e->event; 3684 spin_unlock_irqrestore(&dev->event_lock, flags); 3685 3686 e = kzalloc(sizeof *e, GFP_KERNEL); 3687 if (e == NULL) { 3688 spin_lock_irqsave(&dev->event_lock, flags); 3689 file_priv->event_space += sizeof e->event; 3690 spin_unlock_irqrestore(&dev->event_lock, flags); 3691 goto out; 3692 } 3693 3694 e->event.base.type = DRM_EVENT_FLIP_COMPLETE; 3695 e->event.base.length = sizeof e->event; 3696 e->event.user_data = page_flip->user_data; 3697 e->base.event = &e->event.base; 3698 e->base.file_priv = file_priv; 3699 e->base.destroy = 3700 (void (*) (struct drm_pending_event *)) kfree; 3701 } 3702 3703 ret = crtc->funcs->page_flip(crtc, fb, e); 3704 if (ret) { 3705 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { 3706 spin_lock_irqsave(&dev->event_lock, flags); 3707 file_priv->event_space += sizeof e->event; 3708 spin_unlock_irqrestore(&dev->event_lock, flags); 3709 kfree(e); 3710 } 3711 } 3712 3713 out: 3714 mutex_unlock(&dev->mode_config.mutex); 3715 return ret; 3716 } 3717 3718 void drm_mode_config_reset(struct drm_device *dev) 3719 { 3720 struct drm_crtc *crtc; 3721 struct drm_encoder *encoder; 3722 struct drm_connector *connector; 3723 3724 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) 3725 if (crtc->funcs->reset) 3726 crtc->funcs->reset(crtc); 3727 3728 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) 3729 if (encoder->funcs->reset) 3730 encoder->funcs->reset(encoder); 3731 3732 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 3733 connector->status = connector_status_unknown; 3734 3735 if (connector->funcs->reset) 3736 connector->funcs->reset(connector); 3737 } 3738 } 3739 EXPORT_SYMBOL(drm_mode_config_reset); 3740 3741 int drm_mode_create_dumb_ioctl(struct drm_device *dev, 3742 void *data, struct drm_file *file_priv) 3743 { 3744 struct drm_mode_create_dumb *args = data; 3745 3746 if (!dev->driver->dumb_create) 3747 return -ENOSYS; 3748 return dev->driver->dumb_create(file_priv, dev, args); 3749 } 3750 3751 int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, 3752 void *data, struct drm_file *file_priv) 3753 { 3754 struct drm_mode_map_dumb *args = data; 3755 3756 /* call driver ioctl to get mmap offset */ 3757 if (!dev->driver->dumb_map_offset) 3758 return -ENOSYS; 3759 3760 return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); 3761 } 3762 3763 int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, 3764 void *data, struct drm_file *file_priv) 3765 { 3766 struct drm_mode_destroy_dumb *args = data; 3767 3768 if (!dev->driver->dumb_destroy) 3769 return -ENOSYS; 3770 3771 return dev->driver->dumb_destroy(file_priv, dev, args->handle); 3772 } 3773 3774 /* 3775 * Just need to support RGB formats here for compat with code that doesn't 3776 * use pixel formats directly yet. 3777 */ 3778 void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, 3779 int *bpp) 3780 { 3781 switch (format) { 3782 case DRM_FORMAT_RGB332: 3783 case DRM_FORMAT_BGR233: 3784 *depth = 8; 3785 *bpp = 8; 3786 break; 3787 case DRM_FORMAT_XRGB1555: 3788 case DRM_FORMAT_XBGR1555: 3789 case DRM_FORMAT_RGBX5551: 3790 case DRM_FORMAT_BGRX5551: 3791 case DRM_FORMAT_ARGB1555: 3792 case DRM_FORMAT_ABGR1555: 3793 case DRM_FORMAT_RGBA5551: 3794 case DRM_FORMAT_BGRA5551: 3795 *depth = 15; 3796 *bpp = 16; 3797 break; 3798 case DRM_FORMAT_RGB565: 3799 case DRM_FORMAT_BGR565: 3800 *depth = 16; 3801 *bpp = 16; 3802 break; 3803 case DRM_FORMAT_RGB888: 3804 case DRM_FORMAT_BGR888: 3805 *depth = 24; 3806 *bpp = 24; 3807 break; 3808 case DRM_FORMAT_XRGB8888: 3809 case DRM_FORMAT_XBGR8888: 3810 case DRM_FORMAT_RGBX8888: 3811 case DRM_FORMAT_BGRX8888: 3812 *depth = 24; 3813 *bpp = 32; 3814 break; 3815 case DRM_FORMAT_XRGB2101010: 3816 case DRM_FORMAT_XBGR2101010: 3817 case DRM_FORMAT_RGBX1010102: 3818 case DRM_FORMAT_BGRX1010102: 3819 case DRM_FORMAT_ARGB2101010: 3820 case DRM_FORMAT_ABGR2101010: 3821 case DRM_FORMAT_RGBA1010102: 3822 case DRM_FORMAT_BGRA1010102: 3823 *depth = 30; 3824 *bpp = 32; 3825 break; 3826 case DRM_FORMAT_ARGB8888: 3827 case DRM_FORMAT_ABGR8888: 3828 case DRM_FORMAT_RGBA8888: 3829 case DRM_FORMAT_BGRA8888: 3830 *depth = 32; 3831 *bpp = 32; 3832 break; 3833 default: 3834 DRM_DEBUG_KMS("unsupported pixel format\n"); 3835 *depth = 0; 3836 *bpp = 0; 3837 break; 3838 } 3839 } 3840 EXPORT_SYMBOL(drm_fb_get_bpp_depth); 3841 3842 /** 3843 * drm_format_num_planes - get the number of planes for format 3844 * @format: pixel format (DRM_FORMAT_*) 3845 * 3846 * RETURNS: 3847 * The number of planes used by the specified pixel format. 3848 */ 3849 int drm_format_num_planes(uint32_t format) 3850 { 3851 switch (format) { 3852 case DRM_FORMAT_YUV410: 3853 case DRM_FORMAT_YVU410: 3854 case DRM_FORMAT_YUV411: 3855 case DRM_FORMAT_YVU411: 3856 case DRM_FORMAT_YUV420: 3857 case DRM_FORMAT_YVU420: 3858 case DRM_FORMAT_YUV422: 3859 case DRM_FORMAT_YVU422: 3860 case DRM_FORMAT_YUV444: 3861 case DRM_FORMAT_YVU444: 3862 return 3; 3863 case DRM_FORMAT_NV12: 3864 case DRM_FORMAT_NV21: 3865 case DRM_FORMAT_NV16: 3866 case DRM_FORMAT_NV61: 3867 case DRM_FORMAT_NV24: 3868 case DRM_FORMAT_NV42: 3869 return 2; 3870 default: 3871 return 1; 3872 } 3873 } 3874 EXPORT_SYMBOL(drm_format_num_planes); 3875 3876 /** 3877 * drm_format_plane_cpp - determine the bytes per pixel value 3878 * @format: pixel format (DRM_FORMAT_*) 3879 * @plane: plane index 3880 * 3881 * RETURNS: 3882 * The bytes per pixel value for the specified plane. 3883 */ 3884 int drm_format_plane_cpp(uint32_t format, int plane) 3885 { 3886 unsigned int depth; 3887 int bpp; 3888 3889 if (plane >= drm_format_num_planes(format)) 3890 return 0; 3891 3892 switch (format) { 3893 case DRM_FORMAT_YUYV: 3894 case DRM_FORMAT_YVYU: 3895 case DRM_FORMAT_UYVY: 3896 case DRM_FORMAT_VYUY: 3897 return 2; 3898 case DRM_FORMAT_NV12: 3899 case DRM_FORMAT_NV21: 3900 case DRM_FORMAT_NV16: 3901 case DRM_FORMAT_NV61: 3902 case DRM_FORMAT_NV24: 3903 case DRM_FORMAT_NV42: 3904 return plane ? 2 : 1; 3905 case DRM_FORMAT_YUV410: 3906 case DRM_FORMAT_YVU410: 3907 case DRM_FORMAT_YUV411: 3908 case DRM_FORMAT_YVU411: 3909 case DRM_FORMAT_YUV420: 3910 case DRM_FORMAT_YVU420: 3911 case DRM_FORMAT_YUV422: 3912 case DRM_FORMAT_YVU422: 3913 case DRM_FORMAT_YUV444: 3914 case DRM_FORMAT_YVU444: 3915 return 1; 3916 default: 3917 drm_fb_get_bpp_depth(format, &depth, &bpp); 3918 return bpp >> 3; 3919 } 3920 } 3921 EXPORT_SYMBOL(drm_format_plane_cpp); 3922 3923 /** 3924 * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor 3925 * @format: pixel format (DRM_FORMAT_*) 3926 * 3927 * RETURNS: 3928 * The horizontal chroma subsampling factor for the 3929 * specified pixel format. 3930 */ 3931 int drm_format_horz_chroma_subsampling(uint32_t format) 3932 { 3933 switch (format) { 3934 case DRM_FORMAT_YUV411: 3935 case DRM_FORMAT_YVU411: 3936 case DRM_FORMAT_YUV410: 3937 case DRM_FORMAT_YVU410: 3938 return 4; 3939 case DRM_FORMAT_YUYV: 3940 case DRM_FORMAT_YVYU: 3941 case DRM_FORMAT_UYVY: 3942 case DRM_FORMAT_VYUY: 3943 case DRM_FORMAT_NV12: 3944 case DRM_FORMAT_NV21: 3945 case DRM_FORMAT_NV16: 3946 case DRM_FORMAT_NV61: 3947 case DRM_FORMAT_YUV422: 3948 case DRM_FORMAT_YVU422: 3949 case DRM_FORMAT_YUV420: 3950 case DRM_FORMAT_YVU420: 3951 return 2; 3952 default: 3953 return 1; 3954 } 3955 } 3956 EXPORT_SYMBOL(drm_format_horz_chroma_subsampling); 3957 3958 /** 3959 * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor 3960 * @format: pixel format (DRM_FORMAT_*) 3961 * 3962 * RETURNS: 3963 * The vertical chroma subsampling factor for the 3964 * specified pixel format. 3965 */ 3966 int drm_format_vert_chroma_subsampling(uint32_t format) 3967 { 3968 switch (format) { 3969 case DRM_FORMAT_YUV410: 3970 case DRM_FORMAT_YVU410: 3971 return 4; 3972 case DRM_FORMAT_YUV420: 3973 case DRM_FORMAT_YVU420: 3974 case DRM_FORMAT_NV12: 3975 case DRM_FORMAT_NV21: 3976 return 2; 3977 default: 3978 return 1; 3979 } 3980 } 3981 EXPORT_SYMBOL(drm_format_vert_chroma_subsampling); 3982
Indexes created Wed Oct 22 13:09:56 GMT 2025