1 /* 2 * Copyright (c) 2016 Intel Corporation 3 * 4 * Permission to use, copy, modify, distribute, and sell this software and its 5 * documentation for any purpose is hereby granted without fee, provided that 6 * the above copyright notice appear in all copies and that both that copyright 7 * notice and this permission notice appear in supporting documentation, and 8 * that the name of the copyright holders not be used in advertising or 9 * publicity pertaining to distribution of the software without specific, 10 * written prior permission. The copyright holders make no representations 11 * about the suitability of this software for any purpose. It is provided "as 12 * is" without express or implied warranty. 13 * 14 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, 15 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO 16 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR 17 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, 18 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 19 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 20 * OF THIS SOFTWARE. 21 */ 22 23 #ifndef __DRM_MODE_CONFIG_H__ 24 #define __DRM_MODE_CONFIG_H__ 25 26 #include <linux/mutex.h> 27 #include <linux/types.h> 28 #include <linux/idr.h> 29 #include <linux/workqueue.h> 30 #include <linux/llist.h> 31 32 #include <drm/drm_modeset_lock.h> 33 34 struct drm_file; 35 struct drm_device; 36 struct drm_atomic_state; 37 struct drm_mode_fb_cmd2; 38 struct drm_format_info; 39 40 /** 41 * struct drm_mode_config_funcs - basic driver provided mode setting functions 42 * 43 * Some global (i.e. not per-CRTC, connector, etc) mode setting functions that 44 * involve drivers. 45 */ 46 struct drm_mode_config_funcs { 47 /** 48 * @fb_create: 49 * 50 * Create a new framebuffer object. The core does basic checks on the 51 * requested metadata, but most of that is left to the driver. See 52 * &struct drm_mode_fb_cmd2 for details. 53 * 54 * If the parameters are deemed valid and the backing storage objects in 55 * the underlying memory manager all exist, then the driver allocates 56 * a new &drm_framebuffer structure, subclassed to contain 57 * driver-specific information (like the internal native buffer object 58 * references). It also needs to fill out all relevant metadata, which 59 * should be done by calling drm_helper_mode_fill_fb_struct(). 60 * 61 * The initialization is finalized by calling drm_framebuffer_init(), 62 * which registers the framebuffer and makes it accessible to other 63 * threads. 64 * 65 * RETURNS: 66 * 67 * A new framebuffer with an initial reference count of 1 or a negative 68 * error code encoded with ERR_PTR(). 69 */ 70 struct drm_framebuffer *(*fb_create)(struct drm_device *dev, 71 struct drm_file *file_priv, 72 const struct drm_mode_fb_cmd2 *mode_cmd); 73 74 /** 75 * @get_format_info: 76 * 77 * Allows a driver to return custom format information for special 78 * fb layouts (eg. ones with auxiliary compression control planes). 79 * 80 * RETURNS: 81 * 82 * The format information specific to the given fb metadata, or 83 * NULL if none is found. 84 */ 85 const struct drm_format_info *(*get_format_info)(const struct drm_mode_fb_cmd2 *mode_cmd); 86 87 /** 88 * @output_poll_changed: 89 * 90 * Callback used by helpers to inform the driver of output configuration 91 * changes. 92 * 93 * Drivers implementing fbdev emulation with the helpers can call 94 * drm_fb_helper_hotplug_changed from this hook to inform the fbdev 95 * helper of output changes. 96 * 97 * FIXME: 98 * 99 * Except that there's no vtable for device-level helper callbacks 100 * there's no reason this is a core function. 101 */ 102 void (*output_poll_changed)(struct drm_device *dev); 103 104 /** 105 * @atomic_check: 106 * 107 * This is the only hook to validate an atomic modeset update. This 108 * function must reject any modeset and state changes which the hardware 109 * or driver doesn't support. This includes but is of course not limited 110 * to: 111 * 112 * - Checking that the modes, framebuffers, scaling and placement 113 * requirements and so on are within the limits of the hardware. 114 * 115 * - Checking that any hidden shared resources are not oversubscribed. 116 * This can be shared PLLs, shared lanes, overall memory bandwidth, 117 * display fifo space (where shared between planes or maybe even 118 * CRTCs). 119 * 120 * - Checking that virtualized resources exported to userspace are not 121 * oversubscribed. For various reasons it can make sense to expose 122 * more planes, crtcs or encoders than which are physically there. One 123 * example is dual-pipe operations (which generally should be hidden 124 * from userspace if when lockstepped in hardware, exposed otherwise), 125 * where a plane might need 1 hardware plane (if it's just on one 126 * pipe), 2 hardware planes (when it spans both pipes) or maybe even 127 * shared a hardware plane with a 2nd plane (if there's a compatible 128 * plane requested on the area handled by the other pipe). 129 * 130 * - Check that any transitional state is possible and that if 131 * requested, the update can indeed be done in the vblank period 132 * without temporarily disabling some functions. 133 * 134 * - Check any other constraints the driver or hardware might have. 135 * 136 * - This callback also needs to correctly fill out the &drm_crtc_state 137 * in this update to make sure that drm_atomic_crtc_needs_modeset() 138 * reflects the nature of the possible update and returns true if and 139 * only if the update cannot be applied without tearing within one 140 * vblank on that CRTC. The core uses that information to reject 141 * updates which require a full modeset (i.e. blanking the screen, or 142 * at least pausing updates for a substantial amount of time) if 143 * userspace has disallowed that in its request. 144 * 145 * - The driver also does not need to repeat basic input validation 146 * like done for the corresponding legacy entry points. The core does 147 * that before calling this hook. 148 * 149 * See the documentation of @atomic_commit for an exhaustive list of 150 * error conditions which don't have to be checked at the in this 151 * callback. 152 * 153 * See the documentation for &struct drm_atomic_state for how exactly 154 * an atomic modeset update is described. 155 * 156 * Drivers using the atomic helpers can implement this hook using 157 * drm_atomic_helper_check(), or one of the exported sub-functions of 158 * it. 159 * 160 * RETURNS: 161 * 162 * 0 on success or one of the below negative error codes: 163 * 164 * - -EINVAL, if any of the above constraints are violated. 165 * 166 * - -EDEADLK, when returned from an attempt to acquire an additional 167 * &drm_modeset_lock through drm_modeset_lock(). 168 * 169 * - -ENOMEM, if allocating additional state sub-structures failed due 170 * to lack of memory. 171 * 172 * - -EINTR, -EAGAIN or -ERESTARTSYS, if the IOCTL should be restarted. 173 * This can either be due to a pending signal, or because the driver 174 * needs to completely bail out to recover from an exceptional 175 * situation like a GPU hang. From a userspace point all errors are 176 * treated equally. 177 */ 178 int (*atomic_check)(struct drm_device *dev, 179 struct drm_atomic_state *state); 180 181 /** 182 * @atomic_commit: 183 * 184 * This is the only hook to commit an atomic modeset update. The core 185 * guarantees that @atomic_check has been called successfully before 186 * calling this function, and that nothing has been changed in the 187 * interim. 188 * 189 * See the documentation for &struct drm_atomic_state for how exactly 190 * an atomic modeset update is described. 191 * 192 * Drivers using the atomic helpers can implement this hook using 193 * drm_atomic_helper_commit(), or one of the exported sub-functions of 194 * it. 195 * 196 * Nonblocking commits (as indicated with the nonblock parameter) must 197 * do any preparatory work which might result in an unsuccessful commit 198 * in the context of this callback. The only exceptions are hardware 199 * errors resulting in -EIO. But even in that case the driver must 200 * ensure that the display pipe is at least running, to avoid 201 * compositors crashing when pageflips don't work. Anything else, 202 * specifically committing the update to the hardware, should be done 203 * without blocking the caller. For updates which do not require a 204 * modeset this must be guaranteed. 205 * 206 * The driver must wait for any pending rendering to the new 207 * framebuffers to complete before executing the flip. It should also 208 * wait for any pending rendering from other drivers if the underlying 209 * buffer is a shared dma-buf. Nonblocking commits must not wait for 210 * rendering in the context of this callback. 211 * 212 * An application can request to be notified when the atomic commit has 213 * completed. These events are per-CRTC and can be distinguished by the 214 * CRTC index supplied in &drm_event to userspace. 215 * 216 * The drm core will supply a &struct drm_event in each CRTC's 217 * &drm_crtc_state.event. See the documentation for 218 * &drm_crtc_state.event for more details about the precise semantics of 219 * this event. 220 * 221 * NOTE: 222 * 223 * Drivers are not allowed to shut down any display pipe successfully 224 * enabled through an atomic commit on their own. Doing so can result in 225 * compositors crashing if a page flip is suddenly rejected because the 226 * pipe is off. 227 * 228 * RETURNS: 229 * 230 * 0 on success or one of the below negative error codes: 231 * 232 * - -EBUSY, if a nonblocking updated is requested and there is 233 * an earlier updated pending. Drivers are allowed to support a queue 234 * of outstanding updates, but currently no driver supports that. 235 * Note that drivers must wait for preceding updates to complete if a 236 * synchronous update is requested, they are not allowed to fail the 237 * commit in that case. 238 * 239 * - -ENOMEM, if the driver failed to allocate memory. Specifically 240 * this can happen when trying to pin framebuffers, which must only 241 * be done when committing the state. 242 * 243 * - -ENOSPC, as a refinement of the more generic -ENOMEM to indicate 244 * that the driver has run out of vram, iommu space or similar GPU 245 * address space needed for framebuffer. 246 * 247 * - -EIO, if the hardware completely died. 248 * 249 * - -EINTR, -EAGAIN or -ERESTARTSYS, if the IOCTL should be restarted. 250 * This can either be due to a pending signal, or because the driver 251 * needs to completely bail out to recover from an exceptional 252 * situation like a GPU hang. From a userspace point of view all errors are 253 * treated equally. 254 * 255 * This list is exhaustive. Specifically this hook is not allowed to 256 * return -EINVAL (any invalid requests should be caught in 257 * @atomic_check) or -EDEADLK (this function must not acquire 258 * additional modeset locks). 259 */ 260 int (*atomic_commit)(struct drm_device *dev, 261 struct drm_atomic_state *state, 262 bool nonblock); 263 264 /** 265 * @atomic_state_alloc: 266 * 267 * This optional hook can be used by drivers that want to subclass struct 268 * &drm_atomic_state to be able to track their own driver-private global 269 * state easily. If this hook is implemented, drivers must also 270 * implement @atomic_state_clear and @atomic_state_free. 271 * 272 * RETURNS: 273 * 274 * A new &drm_atomic_state on success or NULL on failure. 275 */ 276 struct drm_atomic_state *(*atomic_state_alloc)(struct drm_device *dev); 277 278 /** 279 * @atomic_state_clear: 280 * 281 * This hook must clear any driver private state duplicated into the 282 * passed-in &drm_atomic_state. This hook is called when the caller 283 * encountered a &drm_modeset_lock deadlock and needs to drop all 284 * already acquired locks as part of the deadlock avoidance dance 285 * implemented in drm_modeset_backoff(). 286 * 287 * Any duplicated state must be invalidated since a concurrent atomic 288 * update might change it, and the drm atomic interfaces always apply 289 * updates as relative changes to the current state. 290 * 291 * Drivers that implement this must call drm_atomic_state_default_clear() 292 * to clear common state. 293 */ 294 void (*atomic_state_clear)(struct drm_atomic_state *state); 295 296 /** 297 * @atomic_state_free: 298 * 299 * This hook needs driver private resources and the &drm_atomic_state 300 * itself. Note that the core first calls drm_atomic_state_clear() to 301 * avoid code duplicate between the clear and free hooks. 302 * 303 * Drivers that implement this must call 304 * drm_atomic_state_default_release() to release common resources. 305 */ 306 void (*atomic_state_free)(struct drm_atomic_state *state); 307 }; 308 309 /** 310 * struct drm_mode_config - Mode configuration control structure 311 * @min_width: minimum pixel width on this device 312 * @min_height: minimum pixel height on this device 313 * @max_width: maximum pixel width on this device 314 * @max_height: maximum pixel height on this device 315 * @funcs: core driver provided mode setting functions 316 * @fb_base: base address of the framebuffer 317 * @poll_enabled: track polling support for this device 318 * @poll_running: track polling status for this device 319 * @delayed_event: track delayed poll uevent deliver for this device 320 * @output_poll_work: delayed work for polling in process context 321 * @preferred_depth: preferred RBG pixel depth, used by fb helpers 322 * @prefer_shadow: hint to userspace to prefer shadow-fb rendering 323 * @cursor_width: hint to userspace for max cursor width 324 * @cursor_height: hint to userspace for max cursor height 325 * @helper_private: mid-layer private data 326 * 327 * Core mode resource tracking structure. All CRTC, encoders, and connectors 328 * enumerated by the driver are added here, as are global properties. Some 329 * global restrictions are also here, e.g. dimension restrictions. 330 */ 331 struct drm_mode_config { 332 /** 333 * @mutex: 334 * 335 * This is the big scary modeset BKL which protects everything that 336 * isn't protect otherwise. Scope is unclear and fuzzy, try to remove 337 * anything from under it's protection and move it into more well-scoped 338 * locks. 339 * 340 * The one important thing this protects is the use of @acquire_ctx. 341 */ 342 struct lock mutex; 343 344 /** 345 * @connection_mutex: 346 * 347 * This protects connector state and the connector to encoder to CRTC 348 * routing chain. 349 * 350 * For atomic drivers specifically this protects &drm_connector.state. 351 */ 352 struct drm_modeset_lock connection_mutex; 353 354 /** 355 * @acquire_ctx: 356 * 357 * Global implicit acquire context used by atomic drivers for legacy 358 * IOCTLs. Deprecated, since implicit locking contexts make it 359 * impossible to use driver-private &struct drm_modeset_lock. Users of 360 * this must hold @mutex. 361 */ 362 struct drm_modeset_acquire_ctx *acquire_ctx; 363 364 /** 365 * @idr_mutex: 366 * 367 * Mutex for KMS ID allocation and management. Protects both @crtc_idr 368 * and @tile_idr. 369 */ 370 struct lock idr_mutex; 371 372 /** 373 * @crtc_idr: 374 * 375 * Main KMS ID tracking object. Use this idr for all IDs, fb, crtc, 376 * connector, modes - just makes life easier to have only one. 377 */ 378 struct idr crtc_idr; 379 380 /** 381 * @tile_idr: 382 * 383 * Use this idr for allocating new IDs for tiled sinks like use in some 384 * high-res DP MST screens. 385 */ 386 struct idr tile_idr; 387 388 /** @fb_lock: Mutex to protect fb the global @fb_list and @num_fb. */ 389 struct lock fb_lock; 390 /** @num_fb: Number of entries on @fb_list. */ 391 int num_fb; 392 /** @fb_list: List of all &struct drm_framebuffer. */ 393 struct list_head fb_list; 394 395 /** 396 * @connector_list_lock: Protects @num_connector and 397 * @connector_list and @connector_free_list. 398 */ 399 spinlock_t connector_list_lock; 400 /** 401 * @num_connector: Number of connectors on this device. Protected by 402 * @connector_list_lock. 403 */ 404 int num_connector; 405 /** 406 * @connector_ida: ID allocator for connector indices. 407 */ 408 struct ida connector_ida; 409 /** 410 * @connector_list: 411 * 412 * List of connector objects linked with &drm_connector.head. Protected 413 * by @connector_list_lock. Only use drm_for_each_connector_iter() and 414 * &struct drm_connector_list_iter to walk this list. 415 */ 416 struct list_head connector_list; 417 /** 418 * @connector_free_list: 419 * 420 * List of connector objects linked with &drm_connector.free_head. 421 * Protected by @connector_list_lock. Used by 422 * drm_for_each_connector_iter() and 423 * &struct drm_connector_list_iter to savely free connectors using 424 * @connector_free_work. 425 */ 426 struct llist_head connector_free_list; 427 /** 428 * @connector_free_work: Work to clean up @connector_free_list. 429 */ 430 struct work_struct connector_free_work; 431 432 /** 433 * @num_encoder: 434 * 435 * Number of encoders on this device. This is invariant over the 436 * lifetime of a device and hence doesn't need any locks. 437 */ 438 int num_encoder; 439 /** 440 * @encoder_list: 441 * 442 * List of encoder objects linked with &drm_encoder.head. This is 443 * invariant over the lifetime of a device and hence doesn't need any 444 * locks. 445 */ 446 struct list_head encoder_list; 447 448 /** 449 * @num_total_plane: 450 * 451 * Number of universal (i.e. with primary/curso) planes on this device. 452 * This is invariant over the lifetime of a device and hence doesn't 453 * need any locks. 454 */ 455 int num_total_plane; 456 /** 457 * @plane_list: 458 * 459 * List of plane objects linked with &drm_plane.head. This is invariant 460 * over the lifetime of a device and hence doesn't need any locks. 461 */ 462 struct list_head plane_list; 463 464 /** 465 * @num_crtc: 466 * 467 * Number of CRTCs on this device linked with &drm_crtc.head. This is invariant over the lifetime 468 * of a device and hence doesn't need any locks. 469 */ 470 int num_crtc; 471 /** 472 * @crtc_list: 473 * 474 * List of CRTC objects linked with &drm_crtc.head. This is invariant 475 * over the lifetime of a device and hence doesn't need any locks. 476 */ 477 struct list_head crtc_list; 478 479 /** 480 * @property_list: 481 * 482 * List of property type objects linked with &drm_property.head. This is 483 * invariant over the lifetime of a device and hence doesn't need any 484 * locks. 485 */ 486 struct list_head property_list; 487 488 int min_width, min_height; 489 int max_width, max_height; 490 const struct drm_mode_config_funcs *funcs; 491 resource_size_t fb_base; 492 493 /* output poll support */ 494 bool poll_enabled; 495 bool poll_running; 496 bool delayed_event; 497 struct delayed_work output_poll_work; 498 499 /** 500 * @blob_lock: 501 * 502 * Mutex for blob property allocation and management, protects 503 * @property_blob_list and &drm_file.blobs. 504 */ 505 struct lock blob_lock; 506 507 /** 508 * @property_blob_list: 509 * 510 * List of all the blob property objects linked with 511 * &drm_property_blob.head. Protected by @blob_lock. 512 */ 513 struct list_head property_blob_list; 514 515 /* pointers to standard properties */ 516 517 /** 518 * @edid_property: Default connector property to hold the EDID of the 519 * currently connected sink, if any. 520 */ 521 struct drm_property *edid_property; 522 /** 523 * @dpms_property: Default connector property to control the 524 * connector's DPMS state. 525 */ 526 struct drm_property *dpms_property; 527 /** 528 * @path_property: Default connector property to hold the DP MST path 529 * for the port. 530 */ 531 struct drm_property *path_property; 532 /** 533 * @tile_property: Default connector property to store the tile 534 * position of a tiled screen, for sinks which need to be driven with 535 * multiple CRTCs. 536 */ 537 struct drm_property *tile_property; 538 /** 539 * @link_status_property: Default connector property for link status 540 * of a connector 541 */ 542 struct drm_property *link_status_property; 543 /** 544 * @plane_type_property: Default plane property to differentiate 545 * CURSOR, PRIMARY and OVERLAY legacy uses of planes. 546 */ 547 struct drm_property *plane_type_property; 548 /** 549 * @prop_src_x: Default atomic plane property for the plane source 550 * position in the connected &drm_framebuffer. 551 */ 552 struct drm_property *prop_src_x; 553 /** 554 * @prop_src_y: Default atomic plane property for the plane source 555 * position in the connected &drm_framebuffer. 556 */ 557 struct drm_property *prop_src_y; 558 /** 559 * @prop_src_w: Default atomic plane property for the plane source 560 * position in the connected &drm_framebuffer. 561 */ 562 struct drm_property *prop_src_w; 563 /** 564 * @prop_src_h: Default atomic plane property for the plane source 565 * position in the connected &drm_framebuffer. 566 */ 567 struct drm_property *prop_src_h; 568 /** 569 * @prop_crtc_x: Default atomic plane property for the plane destination 570 * position in the &drm_crtc is is being shown on. 571 */ 572 struct drm_property *prop_crtc_x; 573 /** 574 * @prop_crtc_y: Default atomic plane property for the plane destination 575 * position in the &drm_crtc is is being shown on. 576 */ 577 struct drm_property *prop_crtc_y; 578 /** 579 * @prop_crtc_w: Default atomic plane property for the plane destination 580 * position in the &drm_crtc is is being shown on. 581 */ 582 struct drm_property *prop_crtc_w; 583 /** 584 * @prop_crtc_h: Default atomic plane property for the plane destination 585 * position in the &drm_crtc is is being shown on. 586 */ 587 struct drm_property *prop_crtc_h; 588 /** 589 * @prop_fb_id: Default atomic plane property to specify the 590 * &drm_framebuffer. 591 */ 592 struct drm_property *prop_fb_id; 593 /** 594 * @prop_in_fence_fd: Sync File fd representing the incoming fences 595 * for a Plane. 596 */ 597 struct drm_property *prop_in_fence_fd; 598 /** 599 * @prop_out_fence_ptr: Sync File fd pointer representing the 600 * outgoing fences for a CRTC. Userspace should provide a pointer to a 601 * value of type s32, and then cast that pointer to u64. 602 */ 603 struct drm_property *prop_out_fence_ptr; 604 /** 605 * @prop_crtc_id: Default atomic plane property to specify the 606 * &drm_crtc. 607 */ 608 struct drm_property *prop_crtc_id; 609 /** 610 * @prop_active: Default atomic CRTC property to control the active 611 * state, which is the simplified implementation for DPMS in atomic 612 * drivers. 613 */ 614 struct drm_property *prop_active; 615 /** 616 * @prop_mode_id: Default atomic CRTC property to set the mode for a 617 * CRTC. A 0 mode implies that the CRTC is entirely disabled - all 618 * connectors must be of and active must be set to disabled, too. 619 */ 620 struct drm_property *prop_mode_id; 621 622 /** 623 * @dvi_i_subconnector_property: Optional DVI-I property to 624 * differentiate between analog or digital mode. 625 */ 626 struct drm_property *dvi_i_subconnector_property; 627 /** 628 * @dvi_i_select_subconnector_property: Optional DVI-I property to 629 * select between analog or digital mode. 630 */ 631 struct drm_property *dvi_i_select_subconnector_property; 632 633 /** 634 * @tv_subconnector_property: Optional TV property to differentiate 635 * between different TV connector types. 636 */ 637 struct drm_property *tv_subconnector_property; 638 /** 639 * @tv_select_subconnector_property: Optional TV property to select 640 * between different TV connector types. 641 */ 642 struct drm_property *tv_select_subconnector_property; 643 /** 644 * @tv_mode_property: Optional TV property to select 645 * the output TV mode. 646 */ 647 struct drm_property *tv_mode_property; 648 /** 649 * @tv_left_margin_property: Optional TV property to set the left 650 * margin. 651 */ 652 struct drm_property *tv_left_margin_property; 653 /** 654 * @tv_right_margin_property: Optional TV property to set the right 655 * margin. 656 */ 657 struct drm_property *tv_right_margin_property; 658 /** 659 * @tv_top_margin_property: Optional TV property to set the right 660 * margin. 661 */ 662 struct drm_property *tv_top_margin_property; 663 /** 664 * @tv_bottom_margin_property: Optional TV property to set the right 665 * margin. 666 */ 667 struct drm_property *tv_bottom_margin_property; 668 /** 669 * @tv_brightness_property: Optional TV property to set the 670 * brightness. 671 */ 672 struct drm_property *tv_brightness_property; 673 /** 674 * @tv_contrast_property: Optional TV property to set the 675 * contrast. 676 */ 677 struct drm_property *tv_contrast_property; 678 /** 679 * @tv_flicker_reduction_property: Optional TV property to control the 680 * flicker reduction mode. 681 */ 682 struct drm_property *tv_flicker_reduction_property; 683 /** 684 * @tv_overscan_property: Optional TV property to control the overscan 685 * setting. 686 */ 687 struct drm_property *tv_overscan_property; 688 /** 689 * @tv_saturation_property: Optional TV property to set the 690 * saturation. 691 */ 692 struct drm_property *tv_saturation_property; 693 /** 694 * @tv_hue_property: Optional TV property to set the hue. 695 */ 696 struct drm_property *tv_hue_property; 697 698 /** 699 * @scaling_mode_property: Optional connector property to control the 700 * upscaling, mostly used for built-in panels. 701 */ 702 struct drm_property *scaling_mode_property; 703 /** 704 * @aspect_ratio_property: Optional connector property to control the 705 * HDMI infoframe aspect ratio setting. 706 */ 707 struct drm_property *aspect_ratio_property; 708 /** 709 * @degamma_lut_property: Optional CRTC property to set the LUT used to 710 * convert the framebuffer's colors to linear gamma. 711 */ 712 struct drm_property *degamma_lut_property; 713 /** 714 * @degamma_lut_size_property: Optional CRTC property for the size of 715 * the degamma LUT as supported by the driver (read-only). 716 */ 717 struct drm_property *degamma_lut_size_property; 718 /** 719 * @ctm_property: Optional CRTC property to set the 720 * matrix used to convert colors after the lookup in the 721 * degamma LUT. 722 */ 723 struct drm_property *ctm_property; 724 /** 725 * @gamma_lut_property: Optional CRTC property to set the LUT used to 726 * convert the colors, after the CTM matrix, to the gamma space of the 727 * connected screen. 728 */ 729 struct drm_property *gamma_lut_property; 730 /** 731 * @gamma_lut_size_property: Optional CRTC property for the size of the 732 * gamma LUT as supported by the driver (read-only). 733 */ 734 struct drm_property *gamma_lut_size_property; 735 736 /** 737 * @suggested_x_property: Optional connector property with a hint for 738 * the position of the output on the host's screen. 739 */ 740 struct drm_property *suggested_x_property; 741 /** 742 * @suggested_y_property: Optional connector property with a hint for 743 * the position of the output on the host's screen. 744 */ 745 struct drm_property *suggested_y_property; 746 747 /** 748 * @non_desktop_property: Optional connector property with a hint 749 * that device isn't a standard display, and the console/desktop, 750 * should not be displayed on it. 751 */ 752 struct drm_property *non_desktop_property; 753 754 /* dumb ioctl parameters */ 755 uint32_t preferred_depth, prefer_shadow; 756 757 /** 758 * @async_page_flip: Does this device support async flips on the primary 759 * plane? 760 */ 761 bool async_page_flip; 762 763 /** 764 * @allow_fb_modifiers: 765 * 766 * Whether the driver supports fb modifiers in the ADDFB2.1 ioctl call. 767 */ 768 bool allow_fb_modifiers; 769 770 /** 771 * @modifiers: Plane property to list support modifier/format 772 * combination. 773 */ 774 struct drm_property *modifiers_property; 775 776 /* cursor size */ 777 uint32_t cursor_width, cursor_height; 778 779 const struct drm_mode_config_helper_funcs *helper_private; 780 }; 781 782 void drm_mode_config_init(struct drm_device *dev); 783 void drm_mode_config_reset(struct drm_device *dev); 784 void drm_mode_config_cleanup(struct drm_device *dev); 785 786 #endif 787