drm_crtc.c revision 1aa1b11c57a69fc483218794172f660d74882944
1/* 2 * Copyright (c) 2006-2008 Intel Corporation 3 * Copyright (c) 2007 Dave Airlie <airlied@linux.ie> 4 * Copyright (c) 2008 Red Hat Inc. 5 * 6 * DRM core CRTC related functions 7 * 8 * Permission to use, copy, modify, distribute, and sell this software and its 9 * documentation for any purpose is hereby granted without fee, provided that 10 * the above copyright notice appear in all copies and that both that copyright 11 * notice and this permission notice appear in supporting documentation, and 12 * that the name of the copyright holders not be used in advertising or 13 * publicity pertaining to distribution of the software without specific, 14 * written prior permission. The copyright holders make no representations 15 * about the suitability of this software for any purpose. It is provided "as 16 * is" without express or implied warranty. 17 * 18 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, 19 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO 20 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR 21 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, 22 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 23 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 24 * OF THIS SOFTWARE. 25 * 26 * Authors: 27 * Keith Packard 28 * Eric Anholt <eric@anholt.net> 29 * Dave Airlie <airlied@linux.ie> 30 * Jesse Barnes <jesse.barnes@intel.com> 31 */ 32#include <linux/list.h> 33#include <linux/slab.h> 34#include <linux/export.h> 35#include "drm.h" 36#include "drmP.h" 37#include "drm_crtc.h" 38#include "drm_edid.h" 39#include "drm_fourcc.h" 40 41/* Avoid boilerplate. I'm tired of typing. */ 42#define DRM_ENUM_NAME_FN(fnname, list) \ 43 char *fnname(int val) \ 44 { \ 45 int i; \ 46 for (i = 0; i < ARRAY_SIZE(list); i++) { \ 47 if (list[i].type == val) \ 48 return list[i].name; \ 49 } \ 50 return "(unknown)"; \ 51 } 52 53/* 54 * Global properties 55 */ 56static struct drm_prop_enum_list drm_dpms_enum_list[] = 57{ { DRM_MODE_DPMS_ON, "On" }, 58 { DRM_MODE_DPMS_STANDBY, "Standby" }, 59 { DRM_MODE_DPMS_SUSPEND, "Suspend" }, 60 { DRM_MODE_DPMS_OFF, "Off" } 61}; 62 63DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) 64 65/* 66 * Optional properties 67 */ 68static struct drm_prop_enum_list drm_scaling_mode_enum_list[] = 69{ 70 { DRM_MODE_SCALE_NONE, "None" }, 71 { DRM_MODE_SCALE_FULLSCREEN, "Full" }, 72 { DRM_MODE_SCALE_CENTER, "Center" }, 73 { DRM_MODE_SCALE_ASPECT, "Full aspect" }, 74}; 75 76static struct drm_prop_enum_list drm_dithering_mode_enum_list[] = 77{ 78 { DRM_MODE_DITHERING_OFF, "Off" }, 79 { DRM_MODE_DITHERING_ON, "On" }, 80 { DRM_MODE_DITHERING_AUTO, "Automatic" }, 81}; 82 83/* 84 * Non-global properties, but "required" for certain connectors. 85 */ 86static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = 87{ 88 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ 89 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ 90 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ 91}; 92 93DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) 94 95static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = 96{ 97 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ 98 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ 99 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ 100}; 101 102DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, 103 drm_dvi_i_subconnector_enum_list) 104 105static struct drm_prop_enum_list drm_tv_select_enum_list[] = 106{ 107 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ 108 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ 109 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ 110 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ 111 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ 112}; 113 114DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) 115 116static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = 117{ 118 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ 119 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ 120 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ 121 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ 122 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ 123}; 124 125DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, 126 drm_tv_subconnector_enum_list) 127 128static struct drm_prop_enum_list drm_dirty_info_enum_list[] = { 129 { DRM_MODE_DIRTY_OFF, "Off" }, 130 { DRM_MODE_DIRTY_ON, "On" }, 131 { DRM_MODE_DIRTY_ANNOTATE, "Annotate" }, 132}; 133 134DRM_ENUM_NAME_FN(drm_get_dirty_info_name, 135 drm_dirty_info_enum_list) 136 137struct drm_conn_prop_enum_list { 138 int type; 139 char *name; 140 int count; 141}; 142 143/* 144 * Connector and encoder types. 145 */ 146static struct drm_conn_prop_enum_list drm_connector_enum_list[] = 147{ { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 }, 148 { DRM_MODE_CONNECTOR_VGA, "VGA", 0 }, 149 { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 }, 150 { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 }, 151 { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 }, 152 { DRM_MODE_CONNECTOR_Composite, "Composite", 0 }, 153 { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 }, 154 { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 }, 155 { DRM_MODE_CONNECTOR_Component, "Component", 0 }, 156 { DRM_MODE_CONNECTOR_9PinDIN, "DIN", 0 }, 157 { DRM_MODE_CONNECTOR_DisplayPort, "DP", 0 }, 158 { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A", 0 }, 159 { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B", 0 }, 160 { DRM_MODE_CONNECTOR_TV, "TV", 0 }, 161 { DRM_MODE_CONNECTOR_eDP, "eDP", 0 }, 162 { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual", 0}, 163}; 164 165static struct drm_prop_enum_list drm_encoder_enum_list[] = 166{ { DRM_MODE_ENCODER_NONE, "None" }, 167 { DRM_MODE_ENCODER_DAC, "DAC" }, 168 { DRM_MODE_ENCODER_TMDS, "TMDS" }, 169 { DRM_MODE_ENCODER_LVDS, "LVDS" }, 170 { DRM_MODE_ENCODER_TVDAC, "TV" }, 171 { DRM_MODE_ENCODER_VIRTUAL, "Virtual" }, 172}; 173 174char *drm_get_encoder_name(struct drm_encoder *encoder) 175{ 176 static char buf[32]; 177 178 snprintf(buf, 32, "%s-%d", 179 drm_encoder_enum_list[encoder->encoder_type].name, 180 encoder->base.id); 181 return buf; 182} 183EXPORT_SYMBOL(drm_get_encoder_name); 184 185char *drm_get_connector_name(struct drm_connector *connector) 186{ 187 static char buf[32]; 188 189 snprintf(buf, 32, "%s-%d", 190 drm_connector_enum_list[connector->connector_type].name, 191 connector->connector_type_id); 192 return buf; 193} 194EXPORT_SYMBOL(drm_get_connector_name); 195 196char *drm_get_connector_status_name(enum drm_connector_status status) 197{ 198 if (status == connector_status_connected) 199 return "connected"; 200 else if (status == connector_status_disconnected) 201 return "disconnected"; 202 else 203 return "unknown"; 204} 205 206/** 207 * drm_mode_object_get - allocate a new identifier 208 * @dev: DRM device 209 * @ptr: object pointer, used to generate unique ID 210 * @type: object type 211 * 212 * LOCKING: 213 * 214 * Create a unique identifier based on @ptr in @dev's identifier space. Used 215 * for tracking modes, CRTCs and connectors. 216 * 217 * RETURNS: 218 * New unique (relative to other objects in @dev) integer identifier for the 219 * object. 220 */ 221static int drm_mode_object_get(struct drm_device *dev, 222 struct drm_mode_object *obj, uint32_t obj_type) 223{ 224 int new_id = 0; 225 int ret; 226 227again: 228 if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) { 229 DRM_ERROR("Ran out memory getting a mode number\n"); 230 return -ENOMEM; 231 } 232 233 mutex_lock(&dev->mode_config.idr_mutex); 234 ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id); 235 mutex_unlock(&dev->mode_config.idr_mutex); 236 if (ret == -EAGAIN) 237 goto again; 238 else if (ret) 239 return ret; 240 241 obj->id = new_id; 242 obj->type = obj_type; 243 return 0; 244} 245 246/** 247 * drm_mode_object_put - free an identifer 248 * @dev: DRM device 249 * @id: ID to free 250 * 251 * LOCKING: 252 * Caller must hold DRM mode_config lock. 253 * 254 * Free @id from @dev's unique identifier pool. 255 */ 256static void drm_mode_object_put(struct drm_device *dev, 257 struct drm_mode_object *object) 258{ 259 mutex_lock(&dev->mode_config.idr_mutex); 260 idr_remove(&dev->mode_config.crtc_idr, object->id); 261 mutex_unlock(&dev->mode_config.idr_mutex); 262} 263 264struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, 265 uint32_t id, uint32_t type) 266{ 267 struct drm_mode_object *obj = NULL; 268 269 mutex_lock(&dev->mode_config.idr_mutex); 270 obj = idr_find(&dev->mode_config.crtc_idr, id); 271 if (!obj || (obj->type != type) || (obj->id != id)) 272 obj = NULL; 273 mutex_unlock(&dev->mode_config.idr_mutex); 274 275 return obj; 276} 277EXPORT_SYMBOL(drm_mode_object_find); 278 279/** 280 * drm_framebuffer_init - initialize a framebuffer 281 * @dev: DRM device 282 * 283 * LOCKING: 284 * Caller must hold mode config lock. 285 * 286 * Allocates an ID for the framebuffer's parent mode object, sets its mode 287 * functions & device file and adds it to the master fd list. 288 * 289 * RETURNS: 290 * Zero on success, error code on failure. 291 */ 292int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, 293 const struct drm_framebuffer_funcs *funcs) 294{ 295 int ret; 296 297 ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB); 298 if (ret) 299 return ret; 300 301 fb->dev = dev; 302 fb->funcs = funcs; 303 dev->mode_config.num_fb++; 304 list_add(&fb->head, &dev->mode_config.fb_list); 305 306 return 0; 307} 308EXPORT_SYMBOL(drm_framebuffer_init); 309 310/** 311 * drm_framebuffer_cleanup - remove a framebuffer object 312 * @fb: framebuffer to remove 313 * 314 * LOCKING: 315 * Caller must hold mode config lock. 316 * 317 * Scans all the CRTCs in @dev's mode_config. If they're using @fb, removes 318 * it, setting it to NULL. 319 */ 320void drm_framebuffer_cleanup(struct drm_framebuffer *fb) 321{ 322 struct drm_device *dev = fb->dev; 323 struct drm_crtc *crtc; 324 struct drm_plane *plane; 325 struct drm_mode_set set; 326 int ret; 327 328 /* remove from any CRTC */ 329 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 330 if (crtc->fb == fb) { 331 /* should turn off the crtc */ 332 memset(&set, 0, sizeof(struct drm_mode_set)); 333 set.crtc = crtc; 334 set.fb = NULL; 335 ret = crtc->funcs->set_config(&set); 336 if (ret) 337 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); 338 } 339 } 340 341 list_for_each_entry(plane, &dev->mode_config.plane_list, head) { 342 if (plane->fb == fb) { 343 /* should turn off the crtc */ 344 ret = plane->funcs->disable_plane(plane); 345 if (ret) 346 DRM_ERROR("failed to disable plane with busy fb\n"); 347 /* disconnect the plane from the fb and crtc: */ 348 plane->fb = NULL; 349 plane->crtc = NULL; 350 } 351 } 352 353 drm_mode_object_put(dev, &fb->base); 354 list_del(&fb->head); 355 dev->mode_config.num_fb--; 356} 357EXPORT_SYMBOL(drm_framebuffer_cleanup); 358 359/** 360 * drm_crtc_init - Initialise a new CRTC object 361 * @dev: DRM device 362 * @crtc: CRTC object to init 363 * @funcs: callbacks for the new CRTC 364 * 365 * LOCKING: 366 * Caller must hold mode config lock. 367 * 368 * Inits a new object created as base part of an driver crtc object. 369 * 370 * RETURNS: 371 * Zero on success, error code on failure. 372 */ 373int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc, 374 const struct drm_crtc_funcs *funcs) 375{ 376 int ret; 377 378 crtc->dev = dev; 379 crtc->funcs = funcs; 380 381 mutex_lock(&dev->mode_config.mutex); 382 383 ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); 384 if (ret) 385 goto out; 386 387 list_add_tail(&crtc->head, &dev->mode_config.crtc_list); 388 dev->mode_config.num_crtc++; 389 390 out: 391 mutex_unlock(&dev->mode_config.mutex); 392 393 return ret; 394} 395EXPORT_SYMBOL(drm_crtc_init); 396 397/** 398 * drm_crtc_cleanup - Cleans up the core crtc usage. 399 * @crtc: CRTC to cleanup 400 * 401 * LOCKING: 402 * Caller must hold mode config lock. 403 * 404 * Cleanup @crtc. Removes from drm modesetting space 405 * does NOT free object, caller does that. 406 */ 407void drm_crtc_cleanup(struct drm_crtc *crtc) 408{ 409 struct drm_device *dev = crtc->dev; 410 411 if (crtc->gamma_store) { 412 kfree(crtc->gamma_store); 413 crtc->gamma_store = NULL; 414 } 415 416 drm_mode_object_put(dev, &crtc->base); 417 list_del(&crtc->head); 418 dev->mode_config.num_crtc--; 419} 420EXPORT_SYMBOL(drm_crtc_cleanup); 421 422/** 423 * drm_mode_probed_add - add a mode to a connector's probed mode list 424 * @connector: connector the new mode 425 * @mode: mode data 426 * 427 * LOCKING: 428 * Caller must hold mode config lock. 429 * 430 * Add @mode to @connector's mode list for later use. 431 */ 432void drm_mode_probed_add(struct drm_connector *connector, 433 struct drm_display_mode *mode) 434{ 435 list_add(&mode->head, &connector->probed_modes); 436} 437EXPORT_SYMBOL(drm_mode_probed_add); 438 439/** 440 * drm_mode_remove - remove and free a mode 441 * @connector: connector list to modify 442 * @mode: mode to remove 443 * 444 * LOCKING: 445 * Caller must hold mode config lock. 446 * 447 * Remove @mode from @connector's mode list, then free it. 448 */ 449void drm_mode_remove(struct drm_connector *connector, 450 struct drm_display_mode *mode) 451{ 452 list_del(&mode->head); 453 drm_mode_destroy(connector->dev, mode); 454} 455EXPORT_SYMBOL(drm_mode_remove); 456 457/** 458 * drm_connector_init - Init a preallocated connector 459 * @dev: DRM device 460 * @connector: the connector to init 461 * @funcs: callbacks for this connector 462 * @name: user visible name of the connector 463 * 464 * LOCKING: 465 * Takes mode config lock. 466 * 467 * Initialises a preallocated connector. Connectors should be 468 * subclassed as part of driver connector objects. 469 * 470 * RETURNS: 471 * Zero on success, error code on failure. 472 */ 473int drm_connector_init(struct drm_device *dev, 474 struct drm_connector *connector, 475 const struct drm_connector_funcs *funcs, 476 int connector_type) 477{ 478 int ret; 479 480 mutex_lock(&dev->mode_config.mutex); 481 482 ret = drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR); 483 if (ret) 484 goto out; 485 486 connector->dev = dev; 487 connector->funcs = funcs; 488 connector->connector_type = connector_type; 489 connector->connector_type_id = 490 ++drm_connector_enum_list[connector_type].count; /* TODO */ 491 INIT_LIST_HEAD(&connector->user_modes); 492 INIT_LIST_HEAD(&connector->probed_modes); 493 INIT_LIST_HEAD(&connector->modes); 494 connector->edid_blob_ptr = NULL; 495 496 list_add_tail(&connector->head, &dev->mode_config.connector_list); 497 dev->mode_config.num_connector++; 498 499 if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) 500 drm_connector_attach_property(connector, 501 dev->mode_config.edid_property, 502 0); 503 504 drm_connector_attach_property(connector, 505 dev->mode_config.dpms_property, 0); 506 507 out: 508 mutex_unlock(&dev->mode_config.mutex); 509 510 return ret; 511} 512EXPORT_SYMBOL(drm_connector_init); 513 514/** 515 * drm_connector_cleanup - cleans up an initialised connector 516 * @connector: connector to cleanup 517 * 518 * LOCKING: 519 * Takes mode config lock. 520 * 521 * Cleans up the connector but doesn't free the object. 522 */ 523void drm_connector_cleanup(struct drm_connector *connector) 524{ 525 struct drm_device *dev = connector->dev; 526 struct drm_display_mode *mode, *t; 527 528 list_for_each_entry_safe(mode, t, &connector->probed_modes, head) 529 drm_mode_remove(connector, mode); 530 531 list_for_each_entry_safe(mode, t, &connector->modes, head) 532 drm_mode_remove(connector, mode); 533 534 list_for_each_entry_safe(mode, t, &connector->user_modes, head) 535 drm_mode_remove(connector, mode); 536 537 mutex_lock(&dev->mode_config.mutex); 538 drm_mode_object_put(dev, &connector->base); 539 list_del(&connector->head); 540 dev->mode_config.num_connector--; 541 mutex_unlock(&dev->mode_config.mutex); 542} 543EXPORT_SYMBOL(drm_connector_cleanup); 544 545void drm_connector_unplug_all(struct drm_device *dev) 546{ 547 struct drm_connector *connector; 548 549 /* taking the mode config mutex ends up in a clash with sysfs */ 550 list_for_each_entry(connector, &dev->mode_config.connector_list, head) 551 drm_sysfs_connector_remove(connector); 552 553} 554EXPORT_SYMBOL(drm_connector_unplug_all); 555 556int drm_encoder_init(struct drm_device *dev, 557 struct drm_encoder *encoder, 558 const struct drm_encoder_funcs *funcs, 559 int encoder_type) 560{ 561 int ret; 562 563 mutex_lock(&dev->mode_config.mutex); 564 565 ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); 566 if (ret) 567 goto out; 568 569 encoder->dev = dev; 570 encoder->encoder_type = encoder_type; 571 encoder->funcs = funcs; 572 573 list_add_tail(&encoder->head, &dev->mode_config.encoder_list); 574 dev->mode_config.num_encoder++; 575 576 out: 577 mutex_unlock(&dev->mode_config.mutex); 578 579 return ret; 580} 581EXPORT_SYMBOL(drm_encoder_init); 582 583void drm_encoder_cleanup(struct drm_encoder *encoder) 584{ 585 struct drm_device *dev = encoder->dev; 586 mutex_lock(&dev->mode_config.mutex); 587 drm_mode_object_put(dev, &encoder->base); 588 list_del(&encoder->head); 589 dev->mode_config.num_encoder--; 590 mutex_unlock(&dev->mode_config.mutex); 591} 592EXPORT_SYMBOL(drm_encoder_cleanup); 593 594int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, 595 unsigned long possible_crtcs, 596 const struct drm_plane_funcs *funcs, 597 const uint32_t *formats, uint32_t format_count, 598 bool priv) 599{ 600 int ret; 601 602 mutex_lock(&dev->mode_config.mutex); 603 604 ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); 605 if (ret) 606 goto out; 607 608 plane->dev = dev; 609 plane->funcs = funcs; 610 plane->format_types = kmalloc(sizeof(uint32_t) * format_count, 611 GFP_KERNEL); 612 if (!plane->format_types) { 613 DRM_DEBUG_KMS("out of memory when allocating plane\n"); 614 drm_mode_object_put(dev, &plane->base); 615 ret = -ENOMEM; 616 goto out; 617 } 618 619 memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); 620 plane->format_count = format_count; 621 plane->possible_crtcs = possible_crtcs; 622 623 /* private planes are not exposed to userspace, but depending on 624 * display hardware, might be convenient to allow sharing programming 625 * for the scanout engine with the crtc implementation. 626 */ 627 if (!priv) { 628 list_add_tail(&plane->head, &dev->mode_config.plane_list); 629 dev->mode_config.num_plane++; 630 } else { 631 INIT_LIST_HEAD(&plane->head); 632 } 633 634 out: 635 mutex_unlock(&dev->mode_config.mutex); 636 637 return ret; 638} 639EXPORT_SYMBOL(drm_plane_init); 640 641void drm_plane_cleanup(struct drm_plane *plane) 642{ 643 struct drm_device *dev = plane->dev; 644 645 mutex_lock(&dev->mode_config.mutex); 646 kfree(plane->format_types); 647 drm_mode_object_put(dev, &plane->base); 648 /* if not added to a list, it must be a private plane */ 649 if (!list_empty(&plane->head)) { 650 list_del(&plane->head); 651 dev->mode_config.num_plane--; 652 } 653 mutex_unlock(&dev->mode_config.mutex); 654} 655EXPORT_SYMBOL(drm_plane_cleanup); 656 657/** 658 * drm_mode_create - create a new display mode 659 * @dev: DRM device 660 * 661 * LOCKING: 662 * Caller must hold DRM mode_config lock. 663 * 664 * Create a new drm_display_mode, give it an ID, and return it. 665 * 666 * RETURNS: 667 * Pointer to new mode on success, NULL on error. 668 */ 669struct drm_display_mode *drm_mode_create(struct drm_device *dev) 670{ 671 struct drm_display_mode *nmode; 672 673 nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL); 674 if (!nmode) 675 return NULL; 676 677 if (drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE)) { 678 kfree(nmode); 679 return NULL; 680 } 681 682 return nmode; 683} 684EXPORT_SYMBOL(drm_mode_create); 685 686/** 687 * drm_mode_destroy - remove a mode 688 * @dev: DRM device 689 * @mode: mode to remove 690 * 691 * LOCKING: 692 * Caller must hold mode config lock. 693 * 694 * Free @mode's unique identifier, then free it. 695 */ 696void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode) 697{ 698 if (!mode) 699 return; 700 701 drm_mode_object_put(dev, &mode->base); 702 703 kfree(mode); 704} 705EXPORT_SYMBOL(drm_mode_destroy); 706 707static int drm_mode_create_standard_connector_properties(struct drm_device *dev) 708{ 709 struct drm_property *edid; 710 struct drm_property *dpms; 711 712 /* 713 * Standard properties (apply to all connectors) 714 */ 715 edid = drm_property_create(dev, DRM_MODE_PROP_BLOB | 716 DRM_MODE_PROP_IMMUTABLE, 717 "EDID", 0); 718 dev->mode_config.edid_property = edid; 719 720 dpms = drm_property_create_enum(dev, 0, 721 "DPMS", drm_dpms_enum_list, 722 ARRAY_SIZE(drm_dpms_enum_list)); 723 dev->mode_config.dpms_property = dpms; 724 725 return 0; 726} 727 728/** 729 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties 730 * @dev: DRM device 731 * 732 * Called by a driver the first time a DVI-I connector is made. 733 */ 734int drm_mode_create_dvi_i_properties(struct drm_device *dev) 735{ 736 struct drm_property *dvi_i_selector; 737 struct drm_property *dvi_i_subconnector; 738 739 if (dev->mode_config.dvi_i_select_subconnector_property) 740 return 0; 741 742 dvi_i_selector = 743 drm_property_create_enum(dev, 0, 744 "select subconnector", 745 drm_dvi_i_select_enum_list, 746 ARRAY_SIZE(drm_dvi_i_select_enum_list)); 747 dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; 748 749 dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 750 "subconnector", 751 drm_dvi_i_subconnector_enum_list, 752 ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); 753 dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; 754 755 return 0; 756} 757EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); 758 759/** 760 * drm_create_tv_properties - create TV specific connector properties 761 * @dev: DRM device 762 * @num_modes: number of different TV formats (modes) supported 763 * @modes: array of pointers to strings containing name of each format 764 * 765 * Called by a driver's TV initialization routine, this function creates 766 * the TV specific connector properties for a given device. Caller is 767 * responsible for allocating a list of format names and passing them to 768 * this routine. 769 */ 770int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes, 771 char *modes[]) 772{ 773 struct drm_property *tv_selector; 774 struct drm_property *tv_subconnector; 775 int i; 776 777 if (dev->mode_config.tv_select_subconnector_property) 778 return 0; 779 780 /* 781 * Basic connector properties 782 */ 783 tv_selector = drm_property_create_enum(dev, 0, 784 "select subconnector", 785 drm_tv_select_enum_list, 786 ARRAY_SIZE(drm_tv_select_enum_list)); 787 dev->mode_config.tv_select_subconnector_property = tv_selector; 788 789 tv_subconnector = 790 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 791 "subconnector", 792 drm_tv_subconnector_enum_list, 793 ARRAY_SIZE(drm_tv_subconnector_enum_list)); 794 dev->mode_config.tv_subconnector_property = tv_subconnector; 795 796 /* 797 * Other, TV specific properties: margins & TV modes. 798 */ 799 dev->mode_config.tv_left_margin_property = 800 drm_property_create_range(dev, 0, "left margin", 0, 100); 801 802 dev->mode_config.tv_right_margin_property = 803 drm_property_create_range(dev, 0, "right margin", 0, 100); 804 805 dev->mode_config.tv_top_margin_property = 806 drm_property_create_range(dev, 0, "top margin", 0, 100); 807 808 dev->mode_config.tv_bottom_margin_property = 809 drm_property_create_range(dev, 0, "bottom margin", 0, 100); 810 811 dev->mode_config.tv_mode_property = 812 drm_property_create(dev, DRM_MODE_PROP_ENUM, 813 "mode", num_modes); 814 for (i = 0; i < num_modes; i++) 815 drm_property_add_enum(dev->mode_config.tv_mode_property, i, 816 i, modes[i]); 817 818 dev->mode_config.tv_brightness_property = 819 drm_property_create_range(dev, 0, "brightness", 0, 100); 820 821 dev->mode_config.tv_contrast_property = 822 drm_property_create_range(dev, 0, "contrast", 0, 100); 823 824 dev->mode_config.tv_flicker_reduction_property = 825 drm_property_create_range(dev, 0, "flicker reduction", 0, 100); 826 827 dev->mode_config.tv_overscan_property = 828 drm_property_create_range(dev, 0, "overscan", 0, 100); 829 830 dev->mode_config.tv_saturation_property = 831 drm_property_create_range(dev, 0, "saturation", 0, 100); 832 833 dev->mode_config.tv_hue_property = 834 drm_property_create_range(dev, 0, "hue", 0, 100); 835 836 return 0; 837} 838EXPORT_SYMBOL(drm_mode_create_tv_properties); 839 840/** 841 * drm_mode_create_scaling_mode_property - create scaling mode property 842 * @dev: DRM device 843 * 844 * Called by a driver the first time it's needed, must be attached to desired 845 * connectors. 846 */ 847int drm_mode_create_scaling_mode_property(struct drm_device *dev) 848{ 849 struct drm_property *scaling_mode; 850 851 if (dev->mode_config.scaling_mode_property) 852 return 0; 853 854 scaling_mode = 855 drm_property_create_enum(dev, 0, "scaling mode", 856 drm_scaling_mode_enum_list, 857 ARRAY_SIZE(drm_scaling_mode_enum_list)); 858 859 dev->mode_config.scaling_mode_property = scaling_mode; 860 861 return 0; 862} 863EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); 864 865/** 866 * drm_mode_create_dithering_property - create dithering property 867 * @dev: DRM device 868 * 869 * Called by a driver the first time it's needed, must be attached to desired 870 * connectors. 871 */ 872int drm_mode_create_dithering_property(struct drm_device *dev) 873{ 874 struct drm_property *dithering_mode; 875 876 if (dev->mode_config.dithering_mode_property) 877 return 0; 878 879 dithering_mode = 880 drm_property_create_enum(dev, 0, "dithering", 881 drm_dithering_mode_enum_list, 882 ARRAY_SIZE(drm_dithering_mode_enum_list)); 883 dev->mode_config.dithering_mode_property = dithering_mode; 884 885 return 0; 886} 887EXPORT_SYMBOL(drm_mode_create_dithering_property); 888 889/** 890 * drm_mode_create_dirty_property - create dirty property 891 * @dev: DRM device 892 * 893 * Called by a driver the first time it's needed, must be attached to desired 894 * connectors. 895 */ 896int drm_mode_create_dirty_info_property(struct drm_device *dev) 897{ 898 struct drm_property *dirty_info; 899 900 if (dev->mode_config.dirty_info_property) 901 return 0; 902 903 dirty_info = 904 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 905 "dirty", 906 drm_dirty_info_enum_list, 907 ARRAY_SIZE(drm_dirty_info_enum_list)); 908 dev->mode_config.dirty_info_property = dirty_info; 909 910 return 0; 911} 912EXPORT_SYMBOL(drm_mode_create_dirty_info_property); 913 914/** 915 * drm_mode_config_init - initialize DRM mode_configuration structure 916 * @dev: DRM device 917 * 918 * LOCKING: 919 * None, should happen single threaded at init time. 920 * 921 * Initialize @dev's mode_config structure, used for tracking the graphics 922 * configuration of @dev. 923 */ 924void drm_mode_config_init(struct drm_device *dev) 925{ 926 mutex_init(&dev->mode_config.mutex); 927 mutex_init(&dev->mode_config.idr_mutex); 928 INIT_LIST_HEAD(&dev->mode_config.fb_list); 929 INIT_LIST_HEAD(&dev->mode_config.crtc_list); 930 INIT_LIST_HEAD(&dev->mode_config.connector_list); 931 INIT_LIST_HEAD(&dev->mode_config.encoder_list); 932 INIT_LIST_HEAD(&dev->mode_config.property_list); 933 INIT_LIST_HEAD(&dev->mode_config.property_blob_list); 934 INIT_LIST_HEAD(&dev->mode_config.plane_list); 935 idr_init(&dev->mode_config.crtc_idr); 936 937 mutex_lock(&dev->mode_config.mutex); 938 drm_mode_create_standard_connector_properties(dev); 939 mutex_unlock(&dev->mode_config.mutex); 940 941 /* Just to be sure */ 942 dev->mode_config.num_fb = 0; 943 dev->mode_config.num_connector = 0; 944 dev->mode_config.num_crtc = 0; 945 dev->mode_config.num_encoder = 0; 946} 947EXPORT_SYMBOL(drm_mode_config_init); 948 949int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group) 950{ 951 uint32_t total_objects = 0; 952 953 total_objects += dev->mode_config.num_crtc; 954 total_objects += dev->mode_config.num_connector; 955 total_objects += dev->mode_config.num_encoder; 956 957 group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL); 958 if (!group->id_list) 959 return -ENOMEM; 960 961 group->num_crtcs = 0; 962 group->num_connectors = 0; 963 group->num_encoders = 0; 964 return 0; 965} 966 967int drm_mode_group_init_legacy_group(struct drm_device *dev, 968 struct drm_mode_group *group) 969{ 970 struct drm_crtc *crtc; 971 struct drm_encoder *encoder; 972 struct drm_connector *connector; 973 int ret; 974 975 if ((ret = drm_mode_group_init(dev, group))) 976 return ret; 977 978 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) 979 group->id_list[group->num_crtcs++] = crtc->base.id; 980 981 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) 982 group->id_list[group->num_crtcs + group->num_encoders++] = 983 encoder->base.id; 984 985 list_for_each_entry(connector, &dev->mode_config.connector_list, head) 986 group->id_list[group->num_crtcs + group->num_encoders + 987 group->num_connectors++] = connector->base.id; 988 989 return 0; 990} 991EXPORT_SYMBOL(drm_mode_group_init_legacy_group); 992 993/** 994 * drm_mode_config_cleanup - free up DRM mode_config info 995 * @dev: DRM device 996 * 997 * LOCKING: 998 * Caller must hold mode config lock. 999 * 1000 * Free up all the connectors and CRTCs associated with this DRM device, then 1001 * free up the framebuffers and associated buffer objects. 1002 * 1003 * FIXME: cleanup any dangling user buffer objects too 1004 */ 1005void drm_mode_config_cleanup(struct drm_device *dev) 1006{ 1007 struct drm_connector *connector, *ot; 1008 struct drm_crtc *crtc, *ct; 1009 struct drm_encoder *encoder, *enct; 1010 struct drm_framebuffer *fb, *fbt; 1011 struct drm_property *property, *pt; 1012 struct drm_plane *plane, *plt; 1013 1014 list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, 1015 head) { 1016 encoder->funcs->destroy(encoder); 1017 } 1018 1019 list_for_each_entry_safe(connector, ot, 1020 &dev->mode_config.connector_list, head) { 1021 connector->funcs->destroy(connector); 1022 } 1023 1024 list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, 1025 head) { 1026 drm_property_destroy(dev, property); 1027 } 1028 1029 list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { 1030 fb->funcs->destroy(fb); 1031 } 1032 1033 list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { 1034 crtc->funcs->destroy(crtc); 1035 } 1036 1037 list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, 1038 head) { 1039 plane->funcs->destroy(plane); 1040 } 1041 1042 idr_remove_all(&dev->mode_config.crtc_idr); 1043 idr_destroy(&dev->mode_config.crtc_idr); 1044} 1045EXPORT_SYMBOL(drm_mode_config_cleanup); 1046 1047/** 1048 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo 1049 * @out: drm_mode_modeinfo struct to return to the user 1050 * @in: drm_display_mode to use 1051 * 1052 * LOCKING: 1053 * None. 1054 * 1055 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to 1056 * the user. 1057 */ 1058static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out, 1059 const struct drm_display_mode *in) 1060{ 1061 WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX || 1062 in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX || 1063 in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX || 1064 in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX || 1065 in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX, 1066 "timing values too large for mode info\n"); 1067 1068 out->clock = in->clock; 1069 out->hdisplay = in->hdisplay; 1070 out->hsync_start = in->hsync_start; 1071 out->hsync_end = in->hsync_end; 1072 out->htotal = in->htotal; 1073 out->hskew = in->hskew; 1074 out->vdisplay = in->vdisplay; 1075 out->vsync_start = in->vsync_start; 1076 out->vsync_end = in->vsync_end; 1077 out->vtotal = in->vtotal; 1078 out->vscan = in->vscan; 1079 out->vrefresh = in->vrefresh; 1080 out->flags = in->flags; 1081 out->type = in->type; 1082 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); 1083 out->name[DRM_DISPLAY_MODE_LEN-1] = 0; 1084} 1085 1086/** 1087 * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode 1088 * @out: drm_display_mode to return to the user 1089 * @in: drm_mode_modeinfo to use 1090 * 1091 * LOCKING: 1092 * None. 1093 * 1094 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to 1095 * the caller. 1096 * 1097 * RETURNS: 1098 * Zero on success, errno on failure. 1099 */ 1100static int drm_crtc_convert_umode(struct drm_display_mode *out, 1101 const struct drm_mode_modeinfo *in) 1102{ 1103 if (in->clock > INT_MAX || in->vrefresh > INT_MAX) 1104 return -ERANGE; 1105 1106 out->clock = in->clock; 1107 out->hdisplay = in->hdisplay; 1108 out->hsync_start = in->hsync_start; 1109 out->hsync_end = in->hsync_end; 1110 out->htotal = in->htotal; 1111 out->hskew = in->hskew; 1112 out->vdisplay = in->vdisplay; 1113 out->vsync_start = in->vsync_start; 1114 out->vsync_end = in->vsync_end; 1115 out->vtotal = in->vtotal; 1116 out->vscan = in->vscan; 1117 out->vrefresh = in->vrefresh; 1118 out->flags = in->flags; 1119 out->type = in->type; 1120 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); 1121 out->name[DRM_DISPLAY_MODE_LEN-1] = 0; 1122 1123 return 0; 1124} 1125 1126/** 1127 * drm_mode_getresources - get graphics configuration 1128 * @inode: inode from the ioctl 1129 * @filp: file * from the ioctl 1130 * @cmd: cmd from ioctl 1131 * @arg: arg from ioctl 1132 * 1133 * LOCKING: 1134 * Takes mode config lock. 1135 * 1136 * Construct a set of configuration description structures and return 1137 * them to the user, including CRTC, connector and framebuffer configuration. 1138 * 1139 * Called by the user via ioctl. 1140 * 1141 * RETURNS: 1142 * Zero on success, errno on failure. 1143 */ 1144int drm_mode_getresources(struct drm_device *dev, void *data, 1145 struct drm_file *file_priv) 1146{ 1147 struct drm_mode_card_res *card_res = data; 1148 struct list_head *lh; 1149 struct drm_framebuffer *fb; 1150 struct drm_connector *connector; 1151 struct drm_crtc *crtc; 1152 struct drm_encoder *encoder; 1153 int ret = 0; 1154 int connector_count = 0; 1155 int crtc_count = 0; 1156 int fb_count = 0; 1157 int encoder_count = 0; 1158 int copied = 0, i; 1159 uint32_t __user *fb_id; 1160 uint32_t __user *crtc_id; 1161 uint32_t __user *connector_id; 1162 uint32_t __user *encoder_id; 1163 struct drm_mode_group *mode_group; 1164 1165 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1166 return -EINVAL; 1167 1168 mutex_lock(&dev->mode_config.mutex); 1169 1170 /* 1171 * For the non-control nodes we need to limit the list of resources 1172 * by IDs in the group list for this node 1173 */ 1174 list_for_each(lh, &file_priv->fbs) 1175 fb_count++; 1176 1177 mode_group = &file_priv->master->minor->mode_group; 1178 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { 1179 1180 list_for_each(lh, &dev->mode_config.crtc_list) 1181 crtc_count++; 1182 1183 list_for_each(lh, &dev->mode_config.connector_list) 1184 connector_count++; 1185 1186 list_for_each(lh, &dev->mode_config.encoder_list) 1187 encoder_count++; 1188 } else { 1189 1190 crtc_count = mode_group->num_crtcs; 1191 connector_count = mode_group->num_connectors; 1192 encoder_count = mode_group->num_encoders; 1193 } 1194 1195 card_res->max_height = dev->mode_config.max_height; 1196 card_res->min_height = dev->mode_config.min_height; 1197 card_res->max_width = dev->mode_config.max_width; 1198 card_res->min_width = dev->mode_config.min_width; 1199 1200 /* handle this in 4 parts */ 1201 /* FBs */ 1202 if (card_res->count_fbs >= fb_count) { 1203 copied = 0; 1204 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; 1205 list_for_each_entry(fb, &file_priv->fbs, filp_head) { 1206 if (put_user(fb->base.id, fb_id + copied)) { 1207 ret = -EFAULT; 1208 goto out; 1209 } 1210 copied++; 1211 } 1212 } 1213 card_res->count_fbs = fb_count; 1214 1215 /* CRTCs */ 1216 if (card_res->count_crtcs >= crtc_count) { 1217 copied = 0; 1218 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; 1219 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { 1220 list_for_each_entry(crtc, &dev->mode_config.crtc_list, 1221 head) { 1222 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); 1223 if (put_user(crtc->base.id, crtc_id + copied)) { 1224 ret = -EFAULT; 1225 goto out; 1226 } 1227 copied++; 1228 } 1229 } else { 1230 for (i = 0; i < mode_group->num_crtcs; i++) { 1231 if (put_user(mode_group->id_list[i], 1232 crtc_id + copied)) { 1233 ret = -EFAULT; 1234 goto out; 1235 } 1236 copied++; 1237 } 1238 } 1239 } 1240 card_res->count_crtcs = crtc_count; 1241 1242 /* Encoders */ 1243 if (card_res->count_encoders >= encoder_count) { 1244 copied = 0; 1245 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; 1246 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { 1247 list_for_each_entry(encoder, 1248 &dev->mode_config.encoder_list, 1249 head) { 1250 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id, 1251 drm_get_encoder_name(encoder)); 1252 if (put_user(encoder->base.id, encoder_id + 1253 copied)) { 1254 ret = -EFAULT; 1255 goto out; 1256 } 1257 copied++; 1258 } 1259 } else { 1260 for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) { 1261 if (put_user(mode_group->id_list[i], 1262 encoder_id + copied)) { 1263 ret = -EFAULT; 1264 goto out; 1265 } 1266 copied++; 1267 } 1268 1269 } 1270 } 1271 card_res->count_encoders = encoder_count; 1272 1273 /* Connectors */ 1274 if (card_res->count_connectors >= connector_count) { 1275 copied = 0; 1276 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; 1277 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { 1278 list_for_each_entry(connector, 1279 &dev->mode_config.connector_list, 1280 head) { 1281 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", 1282 connector->base.id, 1283 drm_get_connector_name(connector)); 1284 if (put_user(connector->base.id, 1285 connector_id + copied)) { 1286 ret = -EFAULT; 1287 goto out; 1288 } 1289 copied++; 1290 } 1291 } else { 1292 int start = mode_group->num_crtcs + 1293 mode_group->num_encoders; 1294 for (i = start; i < start + mode_group->num_connectors; i++) { 1295 if (put_user(mode_group->id_list[i], 1296 connector_id + copied)) { 1297 ret = -EFAULT; 1298 goto out; 1299 } 1300 copied++; 1301 } 1302 } 1303 } 1304 card_res->count_connectors = connector_count; 1305 1306 DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs, 1307 card_res->count_connectors, card_res->count_encoders); 1308 1309out: 1310 mutex_unlock(&dev->mode_config.mutex); 1311 return ret; 1312} 1313 1314/** 1315 * drm_mode_getcrtc - get CRTC configuration 1316 * @inode: inode from the ioctl 1317 * @filp: file * from the ioctl 1318 * @cmd: cmd from ioctl 1319 * @arg: arg from ioctl 1320 * 1321 * LOCKING: 1322 * Takes mode config lock. 1323 * 1324 * Construct a CRTC configuration structure to return to the user. 1325 * 1326 * Called by the user via ioctl. 1327 * 1328 * RETURNS: 1329 * Zero on success, errno on failure. 1330 */ 1331int drm_mode_getcrtc(struct drm_device *dev, 1332 void *data, struct drm_file *file_priv) 1333{ 1334 struct drm_mode_crtc *crtc_resp = data; 1335 struct drm_crtc *crtc; 1336 struct drm_mode_object *obj; 1337 int ret = 0; 1338 1339 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1340 return -EINVAL; 1341 1342 mutex_lock(&dev->mode_config.mutex); 1343 1344 obj = drm_mode_object_find(dev, crtc_resp->crtc_id, 1345 DRM_MODE_OBJECT_CRTC); 1346 if (!obj) { 1347 ret = -EINVAL; 1348 goto out; 1349 } 1350 crtc = obj_to_crtc(obj); 1351 1352 crtc_resp->x = crtc->x; 1353 crtc_resp->y = crtc->y; 1354 crtc_resp->gamma_size = crtc->gamma_size; 1355 if (crtc->fb) 1356 crtc_resp->fb_id = crtc->fb->base.id; 1357 else 1358 crtc_resp->fb_id = 0; 1359 1360 if (crtc->enabled) { 1361 1362 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode); 1363 crtc_resp->mode_valid = 1; 1364 1365 } else { 1366 crtc_resp->mode_valid = 0; 1367 } 1368 1369out: 1370 mutex_unlock(&dev->mode_config.mutex); 1371 return ret; 1372} 1373 1374/** 1375 * drm_mode_getconnector - get connector configuration 1376 * @inode: inode from the ioctl 1377 * @filp: file * from the ioctl 1378 * @cmd: cmd from ioctl 1379 * @arg: arg from ioctl 1380 * 1381 * LOCKING: 1382 * Takes mode config lock. 1383 * 1384 * Construct a connector configuration structure to return to the user. 1385 * 1386 * Called by the user via ioctl. 1387 * 1388 * RETURNS: 1389 * Zero on success, errno on failure. 1390 */ 1391int drm_mode_getconnector(struct drm_device *dev, void *data, 1392 struct drm_file *file_priv) 1393{ 1394 struct drm_mode_get_connector *out_resp = data; 1395 struct drm_mode_object *obj; 1396 struct drm_connector *connector; 1397 struct drm_display_mode *mode; 1398 int mode_count = 0; 1399 int props_count = 0; 1400 int encoders_count = 0; 1401 int ret = 0; 1402 int copied = 0; 1403 int i; 1404 struct drm_mode_modeinfo u_mode; 1405 struct drm_mode_modeinfo __user *mode_ptr; 1406 uint32_t __user *prop_ptr; 1407 uint64_t __user *prop_values; 1408 uint32_t __user *encoder_ptr; 1409 1410 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1411 return -EINVAL; 1412 1413 memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); 1414 1415 DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id); 1416 1417 mutex_lock(&dev->mode_config.mutex); 1418 1419 obj = drm_mode_object_find(dev, out_resp->connector_id, 1420 DRM_MODE_OBJECT_CONNECTOR); 1421 if (!obj) { 1422 ret = -EINVAL; 1423 goto out; 1424 } 1425 connector = obj_to_connector(obj); 1426 1427 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { 1428 if (connector->property_ids[i] != 0) { 1429 props_count++; 1430 } 1431 } 1432 1433 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 1434 if (connector->encoder_ids[i] != 0) { 1435 encoders_count++; 1436 } 1437 } 1438 1439 if (out_resp->count_modes == 0) { 1440 connector->funcs->fill_modes(connector, 1441 dev->mode_config.max_width, 1442 dev->mode_config.max_height); 1443 } 1444 1445 /* delayed so we get modes regardless of pre-fill_modes state */ 1446 list_for_each_entry(mode, &connector->modes, head) 1447 mode_count++; 1448 1449 out_resp->connector_id = connector->base.id; 1450 out_resp->connector_type = connector->connector_type; 1451 out_resp->connector_type_id = connector->connector_type_id; 1452 out_resp->mm_width = connector->display_info.width_mm; 1453 out_resp->mm_height = connector->display_info.height_mm; 1454 out_resp->subpixel = connector->display_info.subpixel_order; 1455 out_resp->connection = connector->status; 1456 if (connector->encoder) 1457 out_resp->encoder_id = connector->encoder->base.id; 1458 else 1459 out_resp->encoder_id = 0; 1460 1461 /* 1462 * This ioctl is called twice, once to determine how much space is 1463 * needed, and the 2nd time to fill it. 1464 */ 1465 if ((out_resp->count_modes >= mode_count) && mode_count) { 1466 copied = 0; 1467 mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; 1468 list_for_each_entry(mode, &connector->modes, head) { 1469 drm_crtc_convert_to_umode(&u_mode, mode); 1470 if (copy_to_user(mode_ptr + copied, 1471 &u_mode, sizeof(u_mode))) { 1472 ret = -EFAULT; 1473 goto out; 1474 } 1475 copied++; 1476 } 1477 } 1478 out_resp->count_modes = mode_count; 1479 1480 if ((out_resp->count_props >= props_count) && props_count) { 1481 copied = 0; 1482 prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr); 1483 prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr); 1484 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { 1485 if (connector->property_ids[i] != 0) { 1486 if (put_user(connector->property_ids[i], 1487 prop_ptr + copied)) { 1488 ret = -EFAULT; 1489 goto out; 1490 } 1491 1492 if (put_user(connector->property_values[i], 1493 prop_values + copied)) { 1494 ret = -EFAULT; 1495 goto out; 1496 } 1497 copied++; 1498 } 1499 } 1500 } 1501 out_resp->count_props = props_count; 1502 1503 if ((out_resp->count_encoders >= encoders_count) && encoders_count) { 1504 copied = 0; 1505 encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); 1506 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 1507 if (connector->encoder_ids[i] != 0) { 1508 if (put_user(connector->encoder_ids[i], 1509 encoder_ptr + copied)) { 1510 ret = -EFAULT; 1511 goto out; 1512 } 1513 copied++; 1514 } 1515 } 1516 } 1517 out_resp->count_encoders = encoders_count; 1518 1519out: 1520 mutex_unlock(&dev->mode_config.mutex); 1521 return ret; 1522} 1523 1524int drm_mode_getencoder(struct drm_device *dev, void *data, 1525 struct drm_file *file_priv) 1526{ 1527 struct drm_mode_get_encoder *enc_resp = data; 1528 struct drm_mode_object *obj; 1529 struct drm_encoder *encoder; 1530 int ret = 0; 1531 1532 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1533 return -EINVAL; 1534 1535 mutex_lock(&dev->mode_config.mutex); 1536 obj = drm_mode_object_find(dev, enc_resp->encoder_id, 1537 DRM_MODE_OBJECT_ENCODER); 1538 if (!obj) { 1539 ret = -EINVAL; 1540 goto out; 1541 } 1542 encoder = obj_to_encoder(obj); 1543 1544 if (encoder->crtc) 1545 enc_resp->crtc_id = encoder->crtc->base.id; 1546 else 1547 enc_resp->crtc_id = 0; 1548 enc_resp->encoder_type = encoder->encoder_type; 1549 enc_resp->encoder_id = encoder->base.id; 1550 enc_resp->possible_crtcs = encoder->possible_crtcs; 1551 enc_resp->possible_clones = encoder->possible_clones; 1552 1553out: 1554 mutex_unlock(&dev->mode_config.mutex); 1555 return ret; 1556} 1557 1558/** 1559 * drm_mode_getplane_res - get plane info 1560 * @dev: DRM device 1561 * @data: ioctl data 1562 * @file_priv: DRM file info 1563 * 1564 * LOCKING: 1565 * Takes mode config lock. 1566 * 1567 * Return an plane count and set of IDs. 1568 */ 1569int drm_mode_getplane_res(struct drm_device *dev, void *data, 1570 struct drm_file *file_priv) 1571{ 1572 struct drm_mode_get_plane_res *plane_resp = data; 1573 struct drm_mode_config *config; 1574 struct drm_plane *plane; 1575 uint32_t __user *plane_ptr; 1576 int copied = 0, ret = 0; 1577 1578 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1579 return -EINVAL; 1580 1581 mutex_lock(&dev->mode_config.mutex); 1582 config = &dev->mode_config; 1583 1584 /* 1585 * This ioctl is called twice, once to determine how much space is 1586 * needed, and the 2nd time to fill it. 1587 */ 1588 if (config->num_plane && 1589 (plane_resp->count_planes >= config->num_plane)) { 1590 plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; 1591 1592 list_for_each_entry(plane, &config->plane_list, head) { 1593 if (put_user(plane->base.id, plane_ptr + copied)) { 1594 ret = -EFAULT; 1595 goto out; 1596 } 1597 copied++; 1598 } 1599 } 1600 plane_resp->count_planes = config->num_plane; 1601 1602out: 1603 mutex_unlock(&dev->mode_config.mutex); 1604 return ret; 1605} 1606 1607/** 1608 * drm_mode_getplane - get plane info 1609 * @dev: DRM device 1610 * @data: ioctl data 1611 * @file_priv: DRM file info 1612 * 1613 * LOCKING: 1614 * Takes mode config lock. 1615 * 1616 * Return plane info, including formats supported, gamma size, any 1617 * current fb, etc. 1618 */ 1619int drm_mode_getplane(struct drm_device *dev, void *data, 1620 struct drm_file *file_priv) 1621{ 1622 struct drm_mode_get_plane *plane_resp = data; 1623 struct drm_mode_object *obj; 1624 struct drm_plane *plane; 1625 uint32_t __user *format_ptr; 1626 int ret = 0; 1627 1628 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1629 return -EINVAL; 1630 1631 mutex_lock(&dev->mode_config.mutex); 1632 obj = drm_mode_object_find(dev, plane_resp->plane_id, 1633 DRM_MODE_OBJECT_PLANE); 1634 if (!obj) { 1635 ret = -ENOENT; 1636 goto out; 1637 } 1638 plane = obj_to_plane(obj); 1639 1640 if (plane->crtc) 1641 plane_resp->crtc_id = plane->crtc->base.id; 1642 else 1643 plane_resp->crtc_id = 0; 1644 1645 if (plane->fb) 1646 plane_resp->fb_id = plane->fb->base.id; 1647 else 1648 plane_resp->fb_id = 0; 1649 1650 plane_resp->plane_id = plane->base.id; 1651 plane_resp->possible_crtcs = plane->possible_crtcs; 1652 plane_resp->gamma_size = plane->gamma_size; 1653 1654 /* 1655 * This ioctl is called twice, once to determine how much space is 1656 * needed, and the 2nd time to fill it. 1657 */ 1658 if (plane->format_count && 1659 (plane_resp->count_format_types >= plane->format_count)) { 1660 format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; 1661 if (copy_to_user(format_ptr, 1662 plane->format_types, 1663 sizeof(uint32_t) * plane->format_count)) { 1664 ret = -EFAULT; 1665 goto out; 1666 } 1667 } 1668 plane_resp->count_format_types = plane->format_count; 1669 1670out: 1671 mutex_unlock(&dev->mode_config.mutex); 1672 return ret; 1673} 1674 1675/** 1676 * drm_mode_setplane - set up or tear down an plane 1677 * @dev: DRM device 1678 * @data: ioctl data* 1679 * @file_prive: DRM file info 1680 * 1681 * LOCKING: 1682 * Takes mode config lock. 1683 * 1684 * Set plane info, including placement, fb, scaling, and other factors. 1685 * Or pass a NULL fb to disable. 1686 */ 1687int drm_mode_setplane(struct drm_device *dev, void *data, 1688 struct drm_file *file_priv) 1689{ 1690 struct drm_mode_set_plane *plane_req = data; 1691 struct drm_mode_object *obj; 1692 struct drm_plane *plane; 1693 struct drm_crtc *crtc; 1694 struct drm_framebuffer *fb; 1695 int ret = 0; 1696 unsigned int fb_width, fb_height; 1697 int i; 1698 1699 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1700 return -EINVAL; 1701 1702 mutex_lock(&dev->mode_config.mutex); 1703 1704 /* 1705 * First, find the plane, crtc, and fb objects. If not available, 1706 * we don't bother to call the driver. 1707 */ 1708 obj = drm_mode_object_find(dev, plane_req->plane_id, 1709 DRM_MODE_OBJECT_PLANE); 1710 if (!obj) { 1711 DRM_DEBUG_KMS("Unknown plane ID %d\n", 1712 plane_req->plane_id); 1713 ret = -ENOENT; 1714 goto out; 1715 } 1716 plane = obj_to_plane(obj); 1717 1718 /* No fb means shut it down */ 1719 if (!plane_req->fb_id) { 1720 plane->funcs->disable_plane(plane); 1721 plane->crtc = NULL; 1722 plane->fb = NULL; 1723 goto out; 1724 } 1725 1726 obj = drm_mode_object_find(dev, plane_req->crtc_id, 1727 DRM_MODE_OBJECT_CRTC); 1728 if (!obj) { 1729 DRM_DEBUG_KMS("Unknown crtc ID %d\n", 1730 plane_req->crtc_id); 1731 ret = -ENOENT; 1732 goto out; 1733 } 1734 crtc = obj_to_crtc(obj); 1735 1736 obj = drm_mode_object_find(dev, plane_req->fb_id, 1737 DRM_MODE_OBJECT_FB); 1738 if (!obj) { 1739 DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", 1740 plane_req->fb_id); 1741 ret = -ENOENT; 1742 goto out; 1743 } 1744 fb = obj_to_fb(obj); 1745 1746 /* Check whether this plane supports the fb pixel format. */ 1747 for (i = 0; i < plane->format_count; i++) 1748 if (fb->pixel_format == plane->format_types[i]) 1749 break; 1750 if (i == plane->format_count) { 1751 DRM_DEBUG_KMS("Invalid pixel format 0x%08x\n", fb->pixel_format); 1752 ret = -EINVAL; 1753 goto out; 1754 } 1755 1756 fb_width = fb->width << 16; 1757 fb_height = fb->height << 16; 1758 1759 /* Make sure source coordinates are inside the fb. */ 1760 if (plane_req->src_w > fb_width || 1761 plane_req->src_x > fb_width - plane_req->src_w || 1762 plane_req->src_h > fb_height || 1763 plane_req->src_y > fb_height - plane_req->src_h) { 1764 DRM_DEBUG_KMS("Invalid source coordinates " 1765 "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", 1766 plane_req->src_w >> 16, 1767 ((plane_req->src_w & 0xffff) * 15625) >> 10, 1768 plane_req->src_h >> 16, 1769 ((plane_req->src_h & 0xffff) * 15625) >> 10, 1770 plane_req->src_x >> 16, 1771 ((plane_req->src_x & 0xffff) * 15625) >> 10, 1772 plane_req->src_y >> 16, 1773 ((plane_req->src_y & 0xffff) * 15625) >> 10); 1774 ret = -ENOSPC; 1775 goto out; 1776 } 1777 1778 /* Give drivers some help against integer overflows */ 1779 if (plane_req->crtc_w > INT_MAX || 1780 plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w || 1781 plane_req->crtc_h > INT_MAX || 1782 plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) { 1783 DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", 1784 plane_req->crtc_w, plane_req->crtc_h, 1785 plane_req->crtc_x, plane_req->crtc_y); 1786 ret = -ERANGE; 1787 goto out; 1788 } 1789 1790 ret = plane->funcs->update_plane(plane, crtc, fb, 1791 plane_req->crtc_x, plane_req->crtc_y, 1792 plane_req->crtc_w, plane_req->crtc_h, 1793 plane_req->src_x, plane_req->src_y, 1794 plane_req->src_w, plane_req->src_h); 1795 if (!ret) { 1796 plane->crtc = crtc; 1797 plane->fb = fb; 1798 } 1799 1800out: 1801 mutex_unlock(&dev->mode_config.mutex); 1802 1803 return ret; 1804} 1805 1806/** 1807 * drm_mode_setcrtc - set CRTC configuration 1808 * @inode: inode from the ioctl 1809 * @filp: file * from the ioctl 1810 * @cmd: cmd from ioctl 1811 * @arg: arg from ioctl 1812 * 1813 * LOCKING: 1814 * Takes mode config lock. 1815 * 1816 * Build a new CRTC configuration based on user request. 1817 * 1818 * Called by the user via ioctl. 1819 * 1820 * RETURNS: 1821 * Zero on success, errno on failure. 1822 */ 1823int drm_mode_setcrtc(struct drm_device *dev, void *data, 1824 struct drm_file *file_priv) 1825{ 1826 struct drm_mode_config *config = &dev->mode_config; 1827 struct drm_mode_crtc *crtc_req = data; 1828 struct drm_mode_object *obj; 1829 struct drm_crtc *crtc; 1830 struct drm_connector **connector_set = NULL, *connector; 1831 struct drm_framebuffer *fb = NULL; 1832 struct drm_display_mode *mode = NULL; 1833 struct drm_mode_set set; 1834 uint32_t __user *set_connectors_ptr; 1835 int ret = 0; 1836 int i; 1837 1838 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1839 return -EINVAL; 1840 1841 /* For some reason crtc x/y offsets are signed internally. */ 1842 if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX) 1843 return -ERANGE; 1844 1845 mutex_lock(&dev->mode_config.mutex); 1846 obj = drm_mode_object_find(dev, crtc_req->crtc_id, 1847 DRM_MODE_OBJECT_CRTC); 1848 if (!obj) { 1849 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); 1850 ret = -EINVAL; 1851 goto out; 1852 } 1853 crtc = obj_to_crtc(obj); 1854 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); 1855 1856 if (crtc_req->mode_valid) { 1857 /* If we have a mode we need a framebuffer. */ 1858 /* If we pass -1, set the mode with the currently bound fb */ 1859 if (crtc_req->fb_id == -1) { 1860 if (!crtc->fb) { 1861 DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); 1862 ret = -EINVAL; 1863 goto out; 1864 } 1865 fb = crtc->fb; 1866 } else { 1867 obj = drm_mode_object_find(dev, crtc_req->fb_id, 1868 DRM_MODE_OBJECT_FB); 1869 if (!obj) { 1870 DRM_DEBUG_KMS("Unknown FB ID%d\n", 1871 crtc_req->fb_id); 1872 ret = -EINVAL; 1873 goto out; 1874 } 1875 fb = obj_to_fb(obj); 1876 } 1877 1878 mode = drm_mode_create(dev); 1879 if (!mode) { 1880 ret = -ENOMEM; 1881 goto out; 1882 } 1883 1884 ret = drm_crtc_convert_umode(mode, &crtc_req->mode); 1885 if (ret) { 1886 DRM_DEBUG_KMS("Invalid mode\n"); 1887 goto out; 1888 } 1889 1890 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); 1891 1892 if (mode->hdisplay > fb->width || 1893 mode->vdisplay > fb->height || 1894 crtc_req->x > fb->width - mode->hdisplay || 1895 crtc_req->y > fb->height - mode->vdisplay) { 1896 DRM_DEBUG_KMS("Invalid CRTC viewport %ux%u+%u+%u for fb size %ux%u.\n", 1897 mode->hdisplay, mode->vdisplay, 1898 crtc_req->x, crtc_req->y, 1899 fb->width, fb->height); 1900 ret = -ENOSPC; 1901 goto out; 1902 } 1903 } 1904 1905 if (crtc_req->count_connectors == 0 && mode) { 1906 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); 1907 ret = -EINVAL; 1908 goto out; 1909 } 1910 1911 if (crtc_req->count_connectors > 0 && (!mode || !fb)) { 1912 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", 1913 crtc_req->count_connectors); 1914 ret = -EINVAL; 1915 goto out; 1916 } 1917 1918 if (crtc_req->count_connectors > 0) { 1919 u32 out_id; 1920 1921 /* Avoid unbounded kernel memory allocation */ 1922 if (crtc_req->count_connectors > config->num_connector) { 1923 ret = -EINVAL; 1924 goto out; 1925 } 1926 1927 connector_set = kmalloc(crtc_req->count_connectors * 1928 sizeof(struct drm_connector *), 1929 GFP_KERNEL); 1930 if (!connector_set) { 1931 ret = -ENOMEM; 1932 goto out; 1933 } 1934 1935 for (i = 0; i < crtc_req->count_connectors; i++) { 1936 set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; 1937 if (get_user(out_id, &set_connectors_ptr[i])) { 1938 ret = -EFAULT; 1939 goto out; 1940 } 1941 1942 obj = drm_mode_object_find(dev, out_id, 1943 DRM_MODE_OBJECT_CONNECTOR); 1944 if (!obj) { 1945 DRM_DEBUG_KMS("Connector id %d unknown\n", 1946 out_id); 1947 ret = -EINVAL; 1948 goto out; 1949 } 1950 connector = obj_to_connector(obj); 1951 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", 1952 connector->base.id, 1953 drm_get_connector_name(connector)); 1954 1955 connector_set[i] = connector; 1956 } 1957 } 1958 1959 set.crtc = crtc; 1960 set.x = crtc_req->x; 1961 set.y = crtc_req->y; 1962 set.mode = mode; 1963 set.connectors = connector_set; 1964 set.num_connectors = crtc_req->count_connectors; 1965 set.fb = fb; 1966 ret = crtc->funcs->set_config(&set); 1967 1968out: 1969 kfree(connector_set); 1970 drm_mode_destroy(dev, mode); 1971 mutex_unlock(&dev->mode_config.mutex); 1972 return ret; 1973} 1974 1975int drm_mode_cursor_ioctl(struct drm_device *dev, 1976 void *data, struct drm_file *file_priv) 1977{ 1978 struct drm_mode_cursor *req = data; 1979 struct drm_mode_object *obj; 1980 struct drm_crtc *crtc; 1981 int ret = 0; 1982 1983 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1984 return -EINVAL; 1985 1986 if (!req->flags) 1987 return -EINVAL; 1988 1989 mutex_lock(&dev->mode_config.mutex); 1990 obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC); 1991 if (!obj) { 1992 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); 1993 ret = -EINVAL; 1994 goto out; 1995 } 1996 crtc = obj_to_crtc(obj); 1997 1998 if (req->flags & DRM_MODE_CURSOR_BO) { 1999 if (!crtc->funcs->cursor_set) { 2000 ret = -ENXIO; 2001 goto out; 2002 } 2003 /* Turns off the cursor if handle is 0 */ 2004 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, 2005 req->width, req->height); 2006 } 2007 2008 if (req->flags & DRM_MODE_CURSOR_MOVE) { 2009 if (crtc->funcs->cursor_move) { 2010 ret = crtc->funcs->cursor_move(crtc, req->x, req->y); 2011 } else { 2012 ret = -EFAULT; 2013 goto out; 2014 } 2015 } 2016out: 2017 mutex_unlock(&dev->mode_config.mutex); 2018 return ret; 2019} 2020 2021/* Original addfb only supported RGB formats, so figure out which one */ 2022uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) 2023{ 2024 uint32_t fmt; 2025 2026 switch (bpp) { 2027 case 8: 2028 fmt = DRM_FORMAT_RGB332; 2029 break; 2030 case 16: 2031 if (depth == 15) 2032 fmt = DRM_FORMAT_XRGB1555; 2033 else 2034 fmt = DRM_FORMAT_RGB565; 2035 break; 2036 case 24: 2037 fmt = DRM_FORMAT_RGB888; 2038 break; 2039 case 32: 2040 if (depth == 24) 2041 fmt = DRM_FORMAT_XRGB8888; 2042 else if (depth == 30) 2043 fmt = DRM_FORMAT_XRGB2101010; 2044 else 2045 fmt = DRM_FORMAT_ARGB8888; 2046 break; 2047 default: 2048 DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); 2049 fmt = DRM_FORMAT_XRGB8888; 2050 break; 2051 } 2052 2053 return fmt; 2054} 2055EXPORT_SYMBOL(drm_mode_legacy_fb_format); 2056 2057/** 2058 * drm_mode_addfb - add an FB to the graphics configuration 2059 * @inode: inode from the ioctl 2060 * @filp: file * from the ioctl 2061 * @cmd: cmd from ioctl 2062 * @arg: arg from ioctl 2063 * 2064 * LOCKING: 2065 * Takes mode config lock. 2066 * 2067 * Add a new FB to the specified CRTC, given a user request. 2068 * 2069 * Called by the user via ioctl. 2070 * 2071 * RETURNS: 2072 * Zero on success, errno on failure. 2073 */ 2074int drm_mode_addfb(struct drm_device *dev, 2075 void *data, struct drm_file *file_priv) 2076{ 2077 struct drm_mode_fb_cmd *or = data; 2078 struct drm_mode_fb_cmd2 r = {}; 2079 struct drm_mode_config *config = &dev->mode_config; 2080 struct drm_framebuffer *fb; 2081 int ret = 0; 2082 2083 /* Use new struct with format internally */ 2084 r.fb_id = or->fb_id; 2085 r.width = or->width; 2086 r.height = or->height; 2087 r.pitches[0] = or->pitch; 2088 r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); 2089 r.handles[0] = or->handle; 2090 2091 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2092 return -EINVAL; 2093 2094 if ((config->min_width > r.width) || (r.width > config->max_width)) 2095 return -EINVAL; 2096 2097 if ((config->min_height > r.height) || (r.height > config->max_height)) 2098 return -EINVAL; 2099 2100 mutex_lock(&dev->mode_config.mutex); 2101 2102 /* TODO check buffer is sufficiently large */ 2103 /* TODO setup destructor callback */ 2104 2105 fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r); 2106 if (IS_ERR(fb)) { 2107 DRM_DEBUG_KMS("could not create framebuffer\n"); 2108 ret = PTR_ERR(fb); 2109 goto out; 2110 } 2111 2112 or->fb_id = fb->base.id; 2113 list_add(&fb->filp_head, &file_priv->fbs); 2114 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); 2115 2116out: 2117 mutex_unlock(&dev->mode_config.mutex); 2118 return ret; 2119} 2120 2121static int format_check(struct drm_mode_fb_cmd2 *r) 2122{ 2123 uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; 2124 2125 switch (format) { 2126 case DRM_FORMAT_C8: 2127 case DRM_FORMAT_RGB332: 2128 case DRM_FORMAT_BGR233: 2129 case DRM_FORMAT_XRGB4444: 2130 case DRM_FORMAT_XBGR4444: 2131 case DRM_FORMAT_RGBX4444: 2132 case DRM_FORMAT_BGRX4444: 2133 case DRM_FORMAT_ARGB4444: 2134 case DRM_FORMAT_ABGR4444: 2135 case DRM_FORMAT_RGBA4444: 2136 case DRM_FORMAT_BGRA4444: 2137 case DRM_FORMAT_XRGB1555: 2138 case DRM_FORMAT_XBGR1555: 2139 case DRM_FORMAT_RGBX5551: 2140 case DRM_FORMAT_BGRX5551: 2141 case DRM_FORMAT_ARGB1555: 2142 case DRM_FORMAT_ABGR1555: 2143 case DRM_FORMAT_RGBA5551: 2144 case DRM_FORMAT_BGRA5551: 2145 case DRM_FORMAT_RGB565: 2146 case DRM_FORMAT_BGR565: 2147 case DRM_FORMAT_RGB888: 2148 case DRM_FORMAT_BGR888: 2149 case DRM_FORMAT_XRGB8888: 2150 case DRM_FORMAT_XBGR8888: 2151 case DRM_FORMAT_RGBX8888: 2152 case DRM_FORMAT_BGRX8888: 2153 case DRM_FORMAT_ARGB8888: 2154 case DRM_FORMAT_ABGR8888: 2155 case DRM_FORMAT_RGBA8888: 2156 case DRM_FORMAT_BGRA8888: 2157 case DRM_FORMAT_XRGB2101010: 2158 case DRM_FORMAT_XBGR2101010: 2159 case DRM_FORMAT_RGBX1010102: 2160 case DRM_FORMAT_BGRX1010102: 2161 case DRM_FORMAT_ARGB2101010: 2162 case DRM_FORMAT_ABGR2101010: 2163 case DRM_FORMAT_RGBA1010102: 2164 case DRM_FORMAT_BGRA1010102: 2165 case DRM_FORMAT_YUYV: 2166 case DRM_FORMAT_YVYU: 2167 case DRM_FORMAT_UYVY: 2168 case DRM_FORMAT_VYUY: 2169 case DRM_FORMAT_AYUV: 2170 case DRM_FORMAT_NV12: 2171 case DRM_FORMAT_NV21: 2172 case DRM_FORMAT_NV16: 2173 case DRM_FORMAT_NV61: 2174 case DRM_FORMAT_YUV410: 2175 case DRM_FORMAT_YVU410: 2176 case DRM_FORMAT_YUV411: 2177 case DRM_FORMAT_YVU411: 2178 case DRM_FORMAT_YUV420: 2179 case DRM_FORMAT_YVU420: 2180 case DRM_FORMAT_YUV422: 2181 case DRM_FORMAT_YVU422: 2182 case DRM_FORMAT_YUV444: 2183 case DRM_FORMAT_YVU444: 2184 return 0; 2185 default: 2186 return -EINVAL; 2187 } 2188} 2189 2190static int framebuffer_check(struct drm_mode_fb_cmd2 *r) 2191{ 2192 int ret, hsub, vsub, num_planes, i; 2193 2194 ret = format_check(r); 2195 if (ret) { 2196 DRM_DEBUG_KMS("bad framebuffer format 0x%08x\n", r->pixel_format); 2197 return ret; 2198 } 2199 2200 hsub = drm_format_horz_chroma_subsampling(r->pixel_format); 2201 vsub = drm_format_vert_chroma_subsampling(r->pixel_format); 2202 num_planes = drm_format_num_planes(r->pixel_format); 2203 2204 if (r->width == 0 || r->width % hsub) { 2205 DRM_DEBUG_KMS("bad framebuffer width %u\n", r->height); 2206 return -EINVAL; 2207 } 2208 2209 if (r->height == 0 || r->height % vsub) { 2210 DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); 2211 return -EINVAL; 2212 } 2213 2214 for (i = 0; i < num_planes; i++) { 2215 unsigned int width = r->width / (i != 0 ? hsub : 1); 2216 2217 if (!r->handles[i]) { 2218 DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); 2219 return -EINVAL; 2220 } 2221 2222 if (r->pitches[i] < drm_format_plane_cpp(r->pixel_format, i) * width) { 2223 DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); 2224 return -EINVAL; 2225 } 2226 } 2227 2228 return 0; 2229} 2230 2231/** 2232 * drm_mode_addfb2 - add an FB to the graphics configuration 2233 * @inode: inode from the ioctl 2234 * @filp: file * from the ioctl 2235 * @cmd: cmd from ioctl 2236 * @arg: arg from ioctl 2237 * 2238 * LOCKING: 2239 * Takes mode config lock. 2240 * 2241 * Add a new FB to the specified CRTC, given a user request with format. 2242 * 2243 * Called by the user via ioctl. 2244 * 2245 * RETURNS: 2246 * Zero on success, errno on failure. 2247 */ 2248int drm_mode_addfb2(struct drm_device *dev, 2249 void *data, struct drm_file *file_priv) 2250{ 2251 struct drm_mode_fb_cmd2 *r = data; 2252 struct drm_mode_config *config = &dev->mode_config; 2253 struct drm_framebuffer *fb; 2254 int ret = 0; 2255 2256 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2257 return -EINVAL; 2258 2259 if ((config->min_width > r->width) || (r->width > config->max_width)) { 2260 DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", 2261 r->width, config->min_width, config->max_width); 2262 return -EINVAL; 2263 } 2264 if ((config->min_height > r->height) || (r->height > config->max_height)) { 2265 DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", 2266 r->height, config->min_height, config->max_height); 2267 return -EINVAL; 2268 } 2269 2270 ret = framebuffer_check(r); 2271 if (ret) 2272 return ret; 2273 2274 mutex_lock(&dev->mode_config.mutex); 2275 2276 fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); 2277 if (IS_ERR(fb)) { 2278 DRM_DEBUG_KMS("could not create framebuffer\n"); 2279 ret = PTR_ERR(fb); 2280 goto out; 2281 } 2282 2283 r->fb_id = fb->base.id; 2284 list_add(&fb->filp_head, &file_priv->fbs); 2285 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); 2286 2287out: 2288 mutex_unlock(&dev->mode_config.mutex); 2289 return ret; 2290} 2291 2292/** 2293 * drm_mode_rmfb - remove an FB from the configuration 2294 * @inode: inode from the ioctl 2295 * @filp: file * from the ioctl 2296 * @cmd: cmd from ioctl 2297 * @arg: arg from ioctl 2298 * 2299 * LOCKING: 2300 * Takes mode config lock. 2301 * 2302 * Remove the FB specified by the user. 2303 * 2304 * Called by the user via ioctl. 2305 * 2306 * RETURNS: 2307 * Zero on success, errno on failure. 2308 */ 2309int drm_mode_rmfb(struct drm_device *dev, 2310 void *data, struct drm_file *file_priv) 2311{ 2312 struct drm_mode_object *obj; 2313 struct drm_framebuffer *fb = NULL; 2314 struct drm_framebuffer *fbl = NULL; 2315 uint32_t *id = data; 2316 int ret = 0; 2317 int found = 0; 2318 2319 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2320 return -EINVAL; 2321 2322 mutex_lock(&dev->mode_config.mutex); 2323 obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB); 2324 /* TODO check that we really get a framebuffer back. */ 2325 if (!obj) { 2326 ret = -EINVAL; 2327 goto out; 2328 } 2329 fb = obj_to_fb(obj); 2330 2331 list_for_each_entry(fbl, &file_priv->fbs, filp_head) 2332 if (fb == fbl) 2333 found = 1; 2334 2335 if (!found) { 2336 ret = -EINVAL; 2337 goto out; 2338 } 2339 2340 /* TODO release all crtc connected to the framebuffer */ 2341 /* TODO unhock the destructor from the buffer object */ 2342 2343 list_del(&fb->filp_head); 2344 fb->funcs->destroy(fb); 2345 2346out: 2347 mutex_unlock(&dev->mode_config.mutex); 2348 return ret; 2349} 2350 2351/** 2352 * drm_mode_getfb - get FB info 2353 * @inode: inode from the ioctl 2354 * @filp: file * from the ioctl 2355 * @cmd: cmd from ioctl 2356 * @arg: arg from ioctl 2357 * 2358 * LOCKING: 2359 * Takes mode config lock. 2360 * 2361 * Lookup the FB given its ID and return info about it. 2362 * 2363 * Called by the user via ioctl. 2364 * 2365 * RETURNS: 2366 * Zero on success, errno on failure. 2367 */ 2368int drm_mode_getfb(struct drm_device *dev, 2369 void *data, struct drm_file *file_priv) 2370{ 2371 struct drm_mode_fb_cmd *r = data; 2372 struct drm_mode_object *obj; 2373 struct drm_framebuffer *fb; 2374 int ret = 0; 2375 2376 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2377 return -EINVAL; 2378 2379 mutex_lock(&dev->mode_config.mutex); 2380 obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB); 2381 if (!obj) { 2382 ret = -EINVAL; 2383 goto out; 2384 } 2385 fb = obj_to_fb(obj); 2386 2387 r->height = fb->height; 2388 r->width = fb->width; 2389 r->depth = fb->depth; 2390 r->bpp = fb->bits_per_pixel; 2391 r->pitch = fb->pitches[0]; 2392 fb->funcs->create_handle(fb, file_priv, &r->handle); 2393 2394out: 2395 mutex_unlock(&dev->mode_config.mutex); 2396 return ret; 2397} 2398 2399int drm_mode_dirtyfb_ioctl(struct drm_device *dev, 2400 void *data, struct drm_file *file_priv) 2401{ 2402 struct drm_clip_rect __user *clips_ptr; 2403 struct drm_clip_rect *clips = NULL; 2404 struct drm_mode_fb_dirty_cmd *r = data; 2405 struct drm_mode_object *obj; 2406 struct drm_framebuffer *fb; 2407 unsigned flags; 2408 int num_clips; 2409 int ret = 0; 2410 2411 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2412 return -EINVAL; 2413 2414 mutex_lock(&dev->mode_config.mutex); 2415 obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB); 2416 if (!obj) { 2417 ret = -EINVAL; 2418 goto out_err1; 2419 } 2420 fb = obj_to_fb(obj); 2421 2422 num_clips = r->num_clips; 2423 clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; 2424 2425 if (!num_clips != !clips_ptr) { 2426 ret = -EINVAL; 2427 goto out_err1; 2428 } 2429 2430 flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; 2431 2432 /* If userspace annotates copy, clips must come in pairs */ 2433 if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { 2434 ret = -EINVAL; 2435 goto out_err1; 2436 } 2437 2438 if (num_clips && clips_ptr) { 2439 if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { 2440 ret = -EINVAL; 2441 goto out_err1; 2442 } 2443 clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL); 2444 if (!clips) { 2445 ret = -ENOMEM; 2446 goto out_err1; 2447 } 2448 2449 ret = copy_from_user(clips, clips_ptr, 2450 num_clips * sizeof(*clips)); 2451 if (ret) { 2452 ret = -EFAULT; 2453 goto out_err2; 2454 } 2455 } 2456 2457 if (fb->funcs->dirty) { 2458 ret = fb->funcs->dirty(fb, file_priv, flags, r->color, 2459 clips, num_clips); 2460 } else { 2461 ret = -ENOSYS; 2462 goto out_err2; 2463 } 2464 2465out_err2: 2466 kfree(clips); 2467out_err1: 2468 mutex_unlock(&dev->mode_config.mutex); 2469 return ret; 2470} 2471 2472 2473/** 2474 * drm_fb_release - remove and free the FBs on this file 2475 * @filp: file * from the ioctl 2476 * 2477 * LOCKING: 2478 * Takes mode config lock. 2479 * 2480 * Destroy all the FBs associated with @filp. 2481 * 2482 * Called by the user via ioctl. 2483 * 2484 * RETURNS: 2485 * Zero on success, errno on failure. 2486 */ 2487void drm_fb_release(struct drm_file *priv) 2488{ 2489 struct drm_device *dev = priv->minor->dev; 2490 struct drm_framebuffer *fb, *tfb; 2491 2492 mutex_lock(&dev->mode_config.mutex); 2493 list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { 2494 list_del(&fb->filp_head); 2495 fb->funcs->destroy(fb); 2496 } 2497 mutex_unlock(&dev->mode_config.mutex); 2498} 2499 2500/** 2501 * drm_mode_attachmode - add a mode to the user mode list 2502 * @dev: DRM device 2503 * @connector: connector to add the mode to 2504 * @mode: mode to add 2505 * 2506 * Add @mode to @connector's user mode list. 2507 */ 2508static void drm_mode_attachmode(struct drm_device *dev, 2509 struct drm_connector *connector, 2510 struct drm_display_mode *mode) 2511{ 2512 list_add_tail(&mode->head, &connector->user_modes); 2513} 2514 2515int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc, 2516 const struct drm_display_mode *mode) 2517{ 2518 struct drm_connector *connector; 2519 int ret = 0; 2520 struct drm_display_mode *dup_mode, *next; 2521 LIST_HEAD(list); 2522 2523 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 2524 if (!connector->encoder) 2525 continue; 2526 if (connector->encoder->crtc == crtc) { 2527 dup_mode = drm_mode_duplicate(dev, mode); 2528 if (!dup_mode) { 2529 ret = -ENOMEM; 2530 goto out; 2531 } 2532 list_add_tail(&dup_mode->head, &list); 2533 } 2534 } 2535 2536 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 2537 if (!connector->encoder) 2538 continue; 2539 if (connector->encoder->crtc == crtc) 2540 list_move_tail(list.next, &connector->user_modes); 2541 } 2542 2543 WARN_ON(!list_empty(&list)); 2544 2545 out: 2546 list_for_each_entry_safe(dup_mode, next, &list, head) 2547 drm_mode_destroy(dev, dup_mode); 2548 2549 return ret; 2550} 2551EXPORT_SYMBOL(drm_mode_attachmode_crtc); 2552 2553static int drm_mode_detachmode(struct drm_device *dev, 2554 struct drm_connector *connector, 2555 struct drm_display_mode *mode) 2556{ 2557 int found = 0; 2558 int ret = 0; 2559 struct drm_display_mode *match_mode, *t; 2560 2561 list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) { 2562 if (drm_mode_equal(match_mode, mode)) { 2563 list_del(&match_mode->head); 2564 drm_mode_destroy(dev, match_mode); 2565 found = 1; 2566 break; 2567 } 2568 } 2569 2570 if (!found) 2571 ret = -EINVAL; 2572 2573 return ret; 2574} 2575 2576int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode) 2577{ 2578 struct drm_connector *connector; 2579 2580 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 2581 drm_mode_detachmode(dev, connector, mode); 2582 } 2583 return 0; 2584} 2585EXPORT_SYMBOL(drm_mode_detachmode_crtc); 2586 2587/** 2588 * drm_fb_attachmode - Attach a user mode to an connector 2589 * @inode: inode from the ioctl 2590 * @filp: file * from the ioctl 2591 * @cmd: cmd from ioctl 2592 * @arg: arg from ioctl 2593 * 2594 * This attaches a user specified mode to an connector. 2595 * Called by the user via ioctl. 2596 * 2597 * RETURNS: 2598 * Zero on success, errno on failure. 2599 */ 2600int drm_mode_attachmode_ioctl(struct drm_device *dev, 2601 void *data, struct drm_file *file_priv) 2602{ 2603 struct drm_mode_mode_cmd *mode_cmd = data; 2604 struct drm_connector *connector; 2605 struct drm_display_mode *mode; 2606 struct drm_mode_object *obj; 2607 struct drm_mode_modeinfo *umode = &mode_cmd->mode; 2608 int ret = 0; 2609 2610 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2611 return -EINVAL; 2612 2613 mutex_lock(&dev->mode_config.mutex); 2614 2615 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR); 2616 if (!obj) { 2617 ret = -EINVAL; 2618 goto out; 2619 } 2620 connector = obj_to_connector(obj); 2621 2622 mode = drm_mode_create(dev); 2623 if (!mode) { 2624 ret = -ENOMEM; 2625 goto out; 2626 } 2627 2628 ret = drm_crtc_convert_umode(mode, umode); 2629 if (ret) { 2630 DRM_DEBUG_KMS("Invalid mode\n"); 2631 drm_mode_destroy(dev, mode); 2632 goto out; 2633 } 2634 2635 drm_mode_attachmode(dev, connector, mode); 2636out: 2637 mutex_unlock(&dev->mode_config.mutex); 2638 return ret; 2639} 2640 2641 2642/** 2643 * drm_fb_detachmode - Detach a user specified mode from an connector 2644 * @inode: inode from the ioctl 2645 * @filp: file * from the ioctl 2646 * @cmd: cmd from ioctl 2647 * @arg: arg from ioctl 2648 * 2649 * Called by the user via ioctl. 2650 * 2651 * RETURNS: 2652 * Zero on success, errno on failure. 2653 */ 2654int drm_mode_detachmode_ioctl(struct drm_device *dev, 2655 void *data, struct drm_file *file_priv) 2656{ 2657 struct drm_mode_object *obj; 2658 struct drm_mode_mode_cmd *mode_cmd = data; 2659 struct drm_connector *connector; 2660 struct drm_display_mode mode; 2661 struct drm_mode_modeinfo *umode = &mode_cmd->mode; 2662 int ret = 0; 2663 2664 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2665 return -EINVAL; 2666 2667 mutex_lock(&dev->mode_config.mutex); 2668 2669 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR); 2670 if (!obj) { 2671 ret = -EINVAL; 2672 goto out; 2673 } 2674 connector = obj_to_connector(obj); 2675 2676 ret = drm_crtc_convert_umode(&mode, umode); 2677 if (ret) { 2678 DRM_DEBUG_KMS("Invalid mode\n"); 2679 goto out; 2680 } 2681 2682 ret = drm_mode_detachmode(dev, connector, &mode); 2683out: 2684 mutex_unlock(&dev->mode_config.mutex); 2685 return ret; 2686} 2687 2688struct drm_property *drm_property_create(struct drm_device *dev, int flags, 2689 const char *name, int num_values) 2690{ 2691 struct drm_property *property = NULL; 2692 int ret; 2693 2694 property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); 2695 if (!property) 2696 return NULL; 2697 2698 if (num_values) { 2699 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL); 2700 if (!property->values) 2701 goto fail; 2702 } 2703 2704 ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); 2705 if (ret) 2706 goto fail; 2707 2708 property->flags = flags; 2709 property->num_values = num_values; 2710 INIT_LIST_HEAD(&property->enum_blob_list); 2711 2712 if (name) { 2713 strncpy(property->name, name, DRM_PROP_NAME_LEN); 2714 property->name[DRM_PROP_NAME_LEN-1] = '\0'; 2715 } 2716 2717 list_add_tail(&property->head, &dev->mode_config.property_list); 2718 return property; 2719fail: 2720 kfree(property->values); 2721 kfree(property); 2722 return NULL; 2723} 2724EXPORT_SYMBOL(drm_property_create); 2725 2726struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, 2727 const char *name, 2728 const struct drm_prop_enum_list *props, 2729 int num_values) 2730{ 2731 struct drm_property *property; 2732 int i, ret; 2733 2734 flags |= DRM_MODE_PROP_ENUM; 2735 2736 property = drm_property_create(dev, flags, name, num_values); 2737 if (!property) 2738 return NULL; 2739 2740 for (i = 0; i < num_values; i++) { 2741 ret = drm_property_add_enum(property, i, 2742 props[i].type, 2743 props[i].name); 2744 if (ret) { 2745 drm_property_destroy(dev, property); 2746 return NULL; 2747 } 2748 } 2749 2750 return property; 2751} 2752EXPORT_SYMBOL(drm_property_create_enum); 2753 2754struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, 2755 const char *name, 2756 uint64_t min, uint64_t max) 2757{ 2758 struct drm_property *property; 2759 2760 flags |= DRM_MODE_PROP_RANGE; 2761 2762 property = drm_property_create(dev, flags, name, 2); 2763 if (!property) 2764 return NULL; 2765 2766 property->values[0] = min; 2767 property->values[1] = max; 2768 2769 return property; 2770} 2771EXPORT_SYMBOL(drm_property_create_range); 2772 2773int drm_property_add_enum(struct drm_property *property, int index, 2774 uint64_t value, const char *name) 2775{ 2776 struct drm_property_enum *prop_enum; 2777 2778 if (!(property->flags & DRM_MODE_PROP_ENUM)) 2779 return -EINVAL; 2780 2781 if (!list_empty(&property->enum_blob_list)) { 2782 list_for_each_entry(prop_enum, &property->enum_blob_list, head) { 2783 if (prop_enum->value == value) { 2784 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); 2785 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; 2786 return 0; 2787 } 2788 } 2789 } 2790 2791 prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); 2792 if (!prop_enum) 2793 return -ENOMEM; 2794 2795 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); 2796 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; 2797 prop_enum->value = value; 2798 2799 property->values[index] = value; 2800 list_add_tail(&prop_enum->head, &property->enum_blob_list); 2801 return 0; 2802} 2803EXPORT_SYMBOL(drm_property_add_enum); 2804 2805void drm_property_destroy(struct drm_device *dev, struct drm_property *property) 2806{ 2807 struct drm_property_enum *prop_enum, *pt; 2808 2809 list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) { 2810 list_del(&prop_enum->head); 2811 kfree(prop_enum); 2812 } 2813 2814 if (property->num_values) 2815 kfree(property->values); 2816 drm_mode_object_put(dev, &property->base); 2817 list_del(&property->head); 2818 kfree(property); 2819} 2820EXPORT_SYMBOL(drm_property_destroy); 2821 2822int drm_connector_attach_property(struct drm_connector *connector, 2823 struct drm_property *property, uint64_t init_val) 2824{ 2825 int i; 2826 2827 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { 2828 if (connector->property_ids[i] == 0) { 2829 connector->property_ids[i] = property->base.id; 2830 connector->property_values[i] = init_val; 2831 break; 2832 } 2833 } 2834 2835 if (i == DRM_CONNECTOR_MAX_PROPERTY) 2836 return -EINVAL; 2837 return 0; 2838} 2839EXPORT_SYMBOL(drm_connector_attach_property); 2840 2841int drm_connector_property_set_value(struct drm_connector *connector, 2842 struct drm_property *property, uint64_t value) 2843{ 2844 int i; 2845 2846 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { 2847 if (connector->property_ids[i] == property->base.id) { 2848 connector->property_values[i] = value; 2849 break; 2850 } 2851 } 2852 2853 if (i == DRM_CONNECTOR_MAX_PROPERTY) 2854 return -EINVAL; 2855 return 0; 2856} 2857EXPORT_SYMBOL(drm_connector_property_set_value); 2858 2859int drm_connector_property_get_value(struct drm_connector *connector, 2860 struct drm_property *property, uint64_t *val) 2861{ 2862 int i; 2863 2864 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { 2865 if (connector->property_ids[i] == property->base.id) { 2866 *val = connector->property_values[i]; 2867 break; 2868 } 2869 } 2870 2871 if (i == DRM_CONNECTOR_MAX_PROPERTY) 2872 return -EINVAL; 2873 return 0; 2874} 2875EXPORT_SYMBOL(drm_connector_property_get_value); 2876 2877int drm_mode_getproperty_ioctl(struct drm_device *dev, 2878 void *data, struct drm_file *file_priv) 2879{ 2880 struct drm_mode_object *obj; 2881 struct drm_mode_get_property *out_resp = data; 2882 struct drm_property *property; 2883 int enum_count = 0; 2884 int blob_count = 0; 2885 int value_count = 0; 2886 int ret = 0, i; 2887 int copied; 2888 struct drm_property_enum *prop_enum; 2889 struct drm_mode_property_enum __user *enum_ptr; 2890 struct drm_property_blob *prop_blob; 2891 uint32_t __user *blob_id_ptr; 2892 uint64_t __user *values_ptr; 2893 uint32_t __user *blob_length_ptr; 2894 2895 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2896 return -EINVAL; 2897 2898 mutex_lock(&dev->mode_config.mutex); 2899 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY); 2900 if (!obj) { 2901 ret = -EINVAL; 2902 goto done; 2903 } 2904 property = obj_to_property(obj); 2905 2906 if (property->flags & DRM_MODE_PROP_ENUM) { 2907 list_for_each_entry(prop_enum, &property->enum_blob_list, head) 2908 enum_count++; 2909 } else if (property->flags & DRM_MODE_PROP_BLOB) { 2910 list_for_each_entry(prop_blob, &property->enum_blob_list, head) 2911 blob_count++; 2912 } 2913 2914 value_count = property->num_values; 2915 2916 strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); 2917 out_resp->name[DRM_PROP_NAME_LEN-1] = 0; 2918 out_resp->flags = property->flags; 2919 2920 if ((out_resp->count_values >= value_count) && value_count) { 2921 values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; 2922 for (i = 0; i < value_count; i++) { 2923 if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { 2924 ret = -EFAULT; 2925 goto done; 2926 } 2927 } 2928 } 2929 out_resp->count_values = value_count; 2930 2931 if (property->flags & DRM_MODE_PROP_ENUM) { 2932 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { 2933 copied = 0; 2934 enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; 2935 list_for_each_entry(prop_enum, &property->enum_blob_list, head) { 2936 2937 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { 2938 ret = -EFAULT; 2939 goto done; 2940 } 2941 2942 if (copy_to_user(&enum_ptr[copied].name, 2943 &prop_enum->name, DRM_PROP_NAME_LEN)) { 2944 ret = -EFAULT; 2945 goto done; 2946 } 2947 copied++; 2948 } 2949 } 2950 out_resp->count_enum_blobs = enum_count; 2951 } 2952 2953 if (property->flags & DRM_MODE_PROP_BLOB) { 2954 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) { 2955 copied = 0; 2956 blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr; 2957 blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr; 2958 2959 list_for_each_entry(prop_blob, &property->enum_blob_list, head) { 2960 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) { 2961 ret = -EFAULT; 2962 goto done; 2963 } 2964 2965 if (put_user(prop_blob->length, blob_length_ptr + copied)) { 2966 ret = -EFAULT; 2967 goto done; 2968 } 2969 2970 copied++; 2971 } 2972 } 2973 out_resp->count_enum_blobs = blob_count; 2974 } 2975done: 2976 mutex_unlock(&dev->mode_config.mutex); 2977 return ret; 2978} 2979 2980static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length, 2981 void *data) 2982{ 2983 struct drm_property_blob *blob; 2984 int ret; 2985 2986 if (!length || !data) 2987 return NULL; 2988 2989 blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); 2990 if (!blob) 2991 return NULL; 2992 2993 ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); 2994 if (ret) { 2995 kfree(blob); 2996 return NULL; 2997 } 2998 2999 blob->length = length; 3000 3001 memcpy(blob->data, data, length); 3002 3003 list_add_tail(&blob->head, &dev->mode_config.property_blob_list); 3004 return blob; 3005} 3006 3007static void drm_property_destroy_blob(struct drm_device *dev, 3008 struct drm_property_blob *blob) 3009{ 3010 drm_mode_object_put(dev, &blob->base); 3011 list_del(&blob->head); 3012 kfree(blob); 3013} 3014 3015int drm_mode_getblob_ioctl(struct drm_device *dev, 3016 void *data, struct drm_file *file_priv) 3017{ 3018 struct drm_mode_object *obj; 3019 struct drm_mode_get_blob *out_resp = data; 3020 struct drm_property_blob *blob; 3021 int ret = 0; 3022 void __user *blob_ptr; 3023 3024 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3025 return -EINVAL; 3026 3027 mutex_lock(&dev->mode_config.mutex); 3028 obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB); 3029 if (!obj) { 3030 ret = -EINVAL; 3031 goto done; 3032 } 3033 blob = obj_to_blob(obj); 3034 3035 if (out_resp->length == blob->length) { 3036 blob_ptr = (void __user *)(unsigned long)out_resp->data; 3037 if (copy_to_user(blob_ptr, blob->data, blob->length)){ 3038 ret = -EFAULT; 3039 goto done; 3040 } 3041 } 3042 out_resp->length = blob->length; 3043 3044done: 3045 mutex_unlock(&dev->mode_config.mutex); 3046 return ret; 3047} 3048 3049int drm_mode_connector_update_edid_property(struct drm_connector *connector, 3050 struct edid *edid) 3051{ 3052 struct drm_device *dev = connector->dev; 3053 int ret = 0, size; 3054 3055 if (connector->edid_blob_ptr) 3056 drm_property_destroy_blob(dev, connector->edid_blob_ptr); 3057 3058 /* Delete edid, when there is none. */ 3059 if (!edid) { 3060 connector->edid_blob_ptr = NULL; 3061 ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0); 3062 return ret; 3063 } 3064 3065 size = EDID_LENGTH * (1 + edid->extensions); 3066 connector->edid_blob_ptr = drm_property_create_blob(connector->dev, 3067 size, edid); 3068 3069 ret = drm_connector_property_set_value(connector, 3070 dev->mode_config.edid_property, 3071 connector->edid_blob_ptr->base.id); 3072 3073 return ret; 3074} 3075EXPORT_SYMBOL(drm_mode_connector_update_edid_property); 3076 3077int drm_mode_connector_property_set_ioctl(struct drm_device *dev, 3078 void *data, struct drm_file *file_priv) 3079{ 3080 struct drm_mode_connector_set_property *out_resp = data; 3081 struct drm_mode_object *obj; 3082 struct drm_property *property; 3083 struct drm_connector *connector; 3084 int ret = -EINVAL; 3085 int i; 3086 3087 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3088 return -EINVAL; 3089 3090 mutex_lock(&dev->mode_config.mutex); 3091 3092 obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR); 3093 if (!obj) { 3094 goto out; 3095 } 3096 connector = obj_to_connector(obj); 3097 3098 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { 3099 if (connector->property_ids[i] == out_resp->prop_id) 3100 break; 3101 } 3102 3103 if (i == DRM_CONNECTOR_MAX_PROPERTY) { 3104 goto out; 3105 } 3106 3107 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY); 3108 if (!obj) { 3109 goto out; 3110 } 3111 property = obj_to_property(obj); 3112 3113 if (property->flags & DRM_MODE_PROP_IMMUTABLE) 3114 goto out; 3115 3116 if (property->flags & DRM_MODE_PROP_RANGE) { 3117 if (out_resp->value < property->values[0]) 3118 goto out; 3119 3120 if (out_resp->value > property->values[1]) 3121 goto out; 3122 } else { 3123 int found = 0; 3124 for (i = 0; i < property->num_values; i++) { 3125 if (property->values[i] == out_resp->value) { 3126 found = 1; 3127 break; 3128 } 3129 } 3130 if (!found) { 3131 goto out; 3132 } 3133 } 3134 3135 /* Do DPMS ourselves */ 3136 if (property == connector->dev->mode_config.dpms_property) { 3137 if (connector->funcs->dpms) 3138 (*connector->funcs->dpms)(connector, (int) out_resp->value); 3139 ret = 0; 3140 } else if (connector->funcs->set_property) 3141 ret = connector->funcs->set_property(connector, property, out_resp->value); 3142 3143 /* store the property value if successful */ 3144 if (!ret) 3145 drm_connector_property_set_value(connector, property, out_resp->value); 3146out: 3147 mutex_unlock(&dev->mode_config.mutex); 3148 return ret; 3149} 3150 3151int drm_mode_connector_attach_encoder(struct drm_connector *connector, 3152 struct drm_encoder *encoder) 3153{ 3154 int i; 3155 3156 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 3157 if (connector->encoder_ids[i] == 0) { 3158 connector->encoder_ids[i] = encoder->base.id; 3159 return 0; 3160 } 3161 } 3162 return -ENOMEM; 3163} 3164EXPORT_SYMBOL(drm_mode_connector_attach_encoder); 3165 3166void drm_mode_connector_detach_encoder(struct drm_connector *connector, 3167 struct drm_encoder *encoder) 3168{ 3169 int i; 3170 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 3171 if (connector->encoder_ids[i] == encoder->base.id) { 3172 connector->encoder_ids[i] = 0; 3173 if (connector->encoder == encoder) 3174 connector->encoder = NULL; 3175 break; 3176 } 3177 } 3178} 3179EXPORT_SYMBOL(drm_mode_connector_detach_encoder); 3180 3181int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, 3182 int gamma_size) 3183{ 3184 crtc->gamma_size = gamma_size; 3185 3186 crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL); 3187 if (!crtc->gamma_store) { 3188 crtc->gamma_size = 0; 3189 return -ENOMEM; 3190 } 3191 3192 return 0; 3193} 3194EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); 3195 3196int drm_mode_gamma_set_ioctl(struct drm_device *dev, 3197 void *data, struct drm_file *file_priv) 3198{ 3199 struct drm_mode_crtc_lut *crtc_lut = data; 3200 struct drm_mode_object *obj; 3201 struct drm_crtc *crtc; 3202 void *r_base, *g_base, *b_base; 3203 int size; 3204 int ret = 0; 3205 3206 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3207 return -EINVAL; 3208 3209 mutex_lock(&dev->mode_config.mutex); 3210 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); 3211 if (!obj) { 3212 ret = -EINVAL; 3213 goto out; 3214 } 3215 crtc = obj_to_crtc(obj); 3216 3217 /* memcpy into gamma store */ 3218 if (crtc_lut->gamma_size != crtc->gamma_size) { 3219 ret = -EINVAL; 3220 goto out; 3221 } 3222 3223 size = crtc_lut->gamma_size * (sizeof(uint16_t)); 3224 r_base = crtc->gamma_store; 3225 if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { 3226 ret = -EFAULT; 3227 goto out; 3228 } 3229 3230 g_base = r_base + size; 3231 if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { 3232 ret = -EFAULT; 3233 goto out; 3234 } 3235 3236 b_base = g_base + size; 3237 if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { 3238 ret = -EFAULT; 3239 goto out; 3240 } 3241 3242 crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); 3243 3244out: 3245 mutex_unlock(&dev->mode_config.mutex); 3246 return ret; 3247 3248} 3249 3250int drm_mode_gamma_get_ioctl(struct drm_device *dev, 3251 void *data, struct drm_file *file_priv) 3252{ 3253 struct drm_mode_crtc_lut *crtc_lut = data; 3254 struct drm_mode_object *obj; 3255 struct drm_crtc *crtc; 3256 void *r_base, *g_base, *b_base; 3257 int size; 3258 int ret = 0; 3259 3260 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3261 return -EINVAL; 3262 3263 mutex_lock(&dev->mode_config.mutex); 3264 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); 3265 if (!obj) { 3266 ret = -EINVAL; 3267 goto out; 3268 } 3269 crtc = obj_to_crtc(obj); 3270 3271 /* memcpy into gamma store */ 3272 if (crtc_lut->gamma_size != crtc->gamma_size) { 3273 ret = -EINVAL; 3274 goto out; 3275 } 3276 3277 size = crtc_lut->gamma_size * (sizeof(uint16_t)); 3278 r_base = crtc->gamma_store; 3279 if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { 3280 ret = -EFAULT; 3281 goto out; 3282 } 3283 3284 g_base = r_base + size; 3285 if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { 3286 ret = -EFAULT; 3287 goto out; 3288 } 3289 3290 b_base = g_base + size; 3291 if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { 3292 ret = -EFAULT; 3293 goto out; 3294 } 3295out: 3296 mutex_unlock(&dev->mode_config.mutex); 3297 return ret; 3298} 3299 3300int drm_mode_page_flip_ioctl(struct drm_device *dev, 3301 void *data, struct drm_file *file_priv) 3302{ 3303 struct drm_mode_crtc_page_flip *page_flip = data; 3304 struct drm_mode_object *obj; 3305 struct drm_crtc *crtc; 3306 struct drm_framebuffer *fb; 3307 struct drm_pending_vblank_event *e = NULL; 3308 unsigned long flags; 3309 int ret = -EINVAL; 3310 3311 if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS || 3312 page_flip->reserved != 0) 3313 return -EINVAL; 3314 3315 mutex_lock(&dev->mode_config.mutex); 3316 obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC); 3317 if (!obj) 3318 goto out; 3319 crtc = obj_to_crtc(obj); 3320 3321 if (crtc->fb == NULL) { 3322 /* The framebuffer is currently unbound, presumably 3323 * due to a hotplug event, that userspace has not 3324 * yet discovered. 3325 */ 3326 ret = -EBUSY; 3327 goto out; 3328 } 3329 3330 if (crtc->funcs->page_flip == NULL) 3331 goto out; 3332 3333 obj = drm_mode_object_find(dev, page_flip->fb_id, DRM_MODE_OBJECT_FB); 3334 if (!obj) 3335 goto out; 3336 fb = obj_to_fb(obj); 3337 3338 if (crtc->mode.hdisplay > fb->width || 3339 crtc->mode.vdisplay > fb->height || 3340 crtc->x > fb->width - crtc->mode.hdisplay || 3341 crtc->y > fb->height - crtc->mode.vdisplay) { 3342 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d.\n", 3343 fb->width, fb->height, 3344 crtc->mode.hdisplay, crtc->mode.vdisplay, 3345 crtc->x, crtc->y); 3346 ret = -ENOSPC; 3347 goto out; 3348 } 3349 3350 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { 3351 ret = -ENOMEM; 3352 spin_lock_irqsave(&dev->event_lock, flags); 3353 if (file_priv->event_space < sizeof e->event) { 3354 spin_unlock_irqrestore(&dev->event_lock, flags); 3355 goto out; 3356 } 3357 file_priv->event_space -= sizeof e->event; 3358 spin_unlock_irqrestore(&dev->event_lock, flags); 3359 3360 e = kzalloc(sizeof *e, GFP_KERNEL); 3361 if (e == NULL) { 3362 spin_lock_irqsave(&dev->event_lock, flags); 3363 file_priv->event_space += sizeof e->event; 3364 spin_unlock_irqrestore(&dev->event_lock, flags); 3365 goto out; 3366 } 3367 3368 e->event.base.type = DRM_EVENT_FLIP_COMPLETE; 3369 e->event.base.length = sizeof e->event; 3370 e->event.user_data = page_flip->user_data; 3371 e->base.event = &e->event.base; 3372 e->base.file_priv = file_priv; 3373 e->base.destroy = 3374 (void (*) (struct drm_pending_event *)) kfree; 3375 } 3376 3377 ret = crtc->funcs->page_flip(crtc, fb, e); 3378 if (ret) { 3379 spin_lock_irqsave(&dev->event_lock, flags); 3380 file_priv->event_space += sizeof e->event; 3381 spin_unlock_irqrestore(&dev->event_lock, flags); 3382 kfree(e); 3383 } 3384 3385out: 3386 mutex_unlock(&dev->mode_config.mutex); 3387 return ret; 3388} 3389 3390void drm_mode_config_reset(struct drm_device *dev) 3391{ 3392 struct drm_crtc *crtc; 3393 struct drm_encoder *encoder; 3394 struct drm_connector *connector; 3395 3396 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) 3397 if (crtc->funcs->reset) 3398 crtc->funcs->reset(crtc); 3399 3400 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) 3401 if (encoder->funcs->reset) 3402 encoder->funcs->reset(encoder); 3403 3404 list_for_each_entry(connector, &dev->mode_config.connector_list, head) 3405 if (connector->funcs->reset) 3406 connector->funcs->reset(connector); 3407} 3408EXPORT_SYMBOL(drm_mode_config_reset); 3409 3410int drm_mode_create_dumb_ioctl(struct drm_device *dev, 3411 void *data, struct drm_file *file_priv) 3412{ 3413 struct drm_mode_create_dumb *args = data; 3414 3415 if (!dev->driver->dumb_create) 3416 return -ENOSYS; 3417 return dev->driver->dumb_create(file_priv, dev, args); 3418} 3419 3420int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, 3421 void *data, struct drm_file *file_priv) 3422{ 3423 struct drm_mode_map_dumb *args = data; 3424 3425 /* call driver ioctl to get mmap offset */ 3426 if (!dev->driver->dumb_map_offset) 3427 return -ENOSYS; 3428 3429 return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); 3430} 3431 3432int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, 3433 void *data, struct drm_file *file_priv) 3434{ 3435 struct drm_mode_destroy_dumb *args = data; 3436 3437 if (!dev->driver->dumb_destroy) 3438 return -ENOSYS; 3439 3440 return dev->driver->dumb_destroy(file_priv, dev, args->handle); 3441} 3442 3443/* 3444 * Just need to support RGB formats here for compat with code that doesn't 3445 * use pixel formats directly yet. 3446 */ 3447void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, 3448 int *bpp) 3449{ 3450 switch (format) { 3451 case DRM_FORMAT_RGB332: 3452 case DRM_FORMAT_BGR233: 3453 *depth = 8; 3454 *bpp = 8; 3455 break; 3456 case DRM_FORMAT_XRGB1555: 3457 case DRM_FORMAT_XBGR1555: 3458 case DRM_FORMAT_RGBX5551: 3459 case DRM_FORMAT_BGRX5551: 3460 case DRM_FORMAT_ARGB1555: 3461 case DRM_FORMAT_ABGR1555: 3462 case DRM_FORMAT_RGBA5551: 3463 case DRM_FORMAT_BGRA5551: 3464 *depth = 15; 3465 *bpp = 16; 3466 break; 3467 case DRM_FORMAT_RGB565: 3468 case DRM_FORMAT_BGR565: 3469 *depth = 16; 3470 *bpp = 16; 3471 break; 3472 case DRM_FORMAT_RGB888: 3473 case DRM_FORMAT_BGR888: 3474 *depth = 24; 3475 *bpp = 24; 3476 break; 3477 case DRM_FORMAT_XRGB8888: 3478 case DRM_FORMAT_XBGR8888: 3479 case DRM_FORMAT_RGBX8888: 3480 case DRM_FORMAT_BGRX8888: 3481 *depth = 24; 3482 *bpp = 32; 3483 break; 3484 case DRM_FORMAT_XRGB2101010: 3485 case DRM_FORMAT_XBGR2101010: 3486 case DRM_FORMAT_RGBX1010102: 3487 case DRM_FORMAT_BGRX1010102: 3488 case DRM_FORMAT_ARGB2101010: 3489 case DRM_FORMAT_ABGR2101010: 3490 case DRM_FORMAT_RGBA1010102: 3491 case DRM_FORMAT_BGRA1010102: 3492 *depth = 30; 3493 *bpp = 32; 3494 break; 3495 case DRM_FORMAT_ARGB8888: 3496 case DRM_FORMAT_ABGR8888: 3497 case DRM_FORMAT_RGBA8888: 3498 case DRM_FORMAT_BGRA8888: 3499 *depth = 32; 3500 *bpp = 32; 3501 break; 3502 default: 3503 DRM_DEBUG_KMS("unsupported pixel format\n"); 3504 *depth = 0; 3505 *bpp = 0; 3506 break; 3507 } 3508} 3509EXPORT_SYMBOL(drm_fb_get_bpp_depth); 3510 3511/** 3512 * drm_format_num_planes - get the number of planes for format 3513 * @format: pixel format (DRM_FORMAT_*) 3514 * 3515 * RETURNS: 3516 * The number of planes used by the specified pixel format. 3517 */ 3518int drm_format_num_planes(uint32_t format) 3519{ 3520 switch (format) { 3521 case DRM_FORMAT_YUV410: 3522 case DRM_FORMAT_YVU410: 3523 case DRM_FORMAT_YUV411: 3524 case DRM_FORMAT_YVU411: 3525 case DRM_FORMAT_YUV420: 3526 case DRM_FORMAT_YVU420: 3527 case DRM_FORMAT_YUV422: 3528 case DRM_FORMAT_YVU422: 3529 case DRM_FORMAT_YUV444: 3530 case DRM_FORMAT_YVU444: 3531 return 3; 3532 case DRM_FORMAT_NV12: 3533 case DRM_FORMAT_NV21: 3534 case DRM_FORMAT_NV16: 3535 case DRM_FORMAT_NV61: 3536 return 2; 3537 default: 3538 return 1; 3539 } 3540} 3541EXPORT_SYMBOL(drm_format_num_planes); 3542 3543/** 3544 * drm_format_plane_cpp - determine the bytes per pixel value 3545 * @format: pixel format (DRM_FORMAT_*) 3546 * @plane: plane index 3547 * 3548 * RETURNS: 3549 * The bytes per pixel value for the specified plane. 3550 */ 3551int drm_format_plane_cpp(uint32_t format, int plane) 3552{ 3553 unsigned int depth; 3554 int bpp; 3555 3556 if (plane >= drm_format_num_planes(format)) 3557 return 0; 3558 3559 switch (format) { 3560 case DRM_FORMAT_YUYV: 3561 case DRM_FORMAT_YVYU: 3562 case DRM_FORMAT_UYVY: 3563 case DRM_FORMAT_VYUY: 3564 return 2; 3565 case DRM_FORMAT_NV12: 3566 case DRM_FORMAT_NV21: 3567 case DRM_FORMAT_NV16: 3568 case DRM_FORMAT_NV61: 3569 return plane ? 2 : 1; 3570 case DRM_FORMAT_YUV410: 3571 case DRM_FORMAT_YVU410: 3572 case DRM_FORMAT_YUV411: 3573 case DRM_FORMAT_YVU411: 3574 case DRM_FORMAT_YUV420: 3575 case DRM_FORMAT_YVU420: 3576 case DRM_FORMAT_YUV422: 3577 case DRM_FORMAT_YVU422: 3578 case DRM_FORMAT_YUV444: 3579 case DRM_FORMAT_YVU444: 3580 return 1; 3581 default: 3582 drm_fb_get_bpp_depth(format, &depth, &bpp); 3583 return bpp >> 3; 3584 } 3585} 3586EXPORT_SYMBOL(drm_format_plane_cpp); 3587 3588/** 3589 * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor 3590 * @format: pixel format (DRM_FORMAT_*) 3591 * 3592 * RETURNS: 3593 * The horizontal chroma subsampling factor for the 3594 * specified pixel format. 3595 */ 3596int drm_format_horz_chroma_subsampling(uint32_t format) 3597{ 3598 switch (format) { 3599 case DRM_FORMAT_YUV411: 3600 case DRM_FORMAT_YVU411: 3601 case DRM_FORMAT_YUV410: 3602 case DRM_FORMAT_YVU410: 3603 return 4; 3604 case DRM_FORMAT_YUYV: 3605 case DRM_FORMAT_YVYU: 3606 case DRM_FORMAT_UYVY: 3607 case DRM_FORMAT_VYUY: 3608 case DRM_FORMAT_NV12: 3609 case DRM_FORMAT_NV21: 3610 case DRM_FORMAT_NV16: 3611 case DRM_FORMAT_NV61: 3612 case DRM_FORMAT_YUV422: 3613 case DRM_FORMAT_YVU422: 3614 case DRM_FORMAT_YUV420: 3615 case DRM_FORMAT_YVU420: 3616 return 2; 3617 default: 3618 return 1; 3619 } 3620} 3621EXPORT_SYMBOL(drm_format_horz_chroma_subsampling); 3622 3623/** 3624 * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor 3625 * @format: pixel format (DRM_FORMAT_*) 3626 * 3627 * RETURNS: 3628 * The vertical chroma subsampling factor for the 3629 * specified pixel format. 3630 */ 3631int drm_format_vert_chroma_subsampling(uint32_t format) 3632{ 3633 switch (format) { 3634 case DRM_FORMAT_YUV410: 3635 case DRM_FORMAT_YVU410: 3636 return 4; 3637 case DRM_FORMAT_YUV420: 3638 case DRM_FORMAT_YVU420: 3639 case DRM_FORMAT_NV12: 3640 case DRM_FORMAT_NV21: 3641 return 2; 3642 default: 3643 return 1; 3644 } 3645} 3646EXPORT_SYMBOL(drm_format_vert_chroma_subsampling); 3647