1 /* $NetBSD: drm_mode_config.h,v 1.2 2021/12/18 23:45:46 riastradh Exp $ */ 2 3 /* 4 * Copyright (c) 2016 Intel Corporation 5 * 6 * Permission to use, copy, modify, distribute, and sell this software and its 7 * documentation for any purpose is hereby granted without fee, provided that 8 * the above copyright notice appear in all copies and that both that copyright 9 * notice and this permission notice appear in supporting documentation, and 10 * that the name of the copyright holders not be used in advertising or 11 * publicity pertaining to distribution of the software without specific, 12 * written prior permission. The copyright holders make no representations 13 * about the suitability of this software for any purpose. It is provided "as 14 * is" without express or implied warranty. 15 * 16 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, 17 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO 18 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR 19 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, 20 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 21 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 22 * OF THIS SOFTWARE. 23 */ 24 25 #ifndef __DRM_MODE_CONFIG_H__ 26 #define __DRM_MODE_CONFIG_H__ 27 28 #include <linux/mutex.h> 29 #include <linux/types.h> 30 #include <linux/idr.h> 31 #include <linux/workqueue.h> 32 #include <linux/llist.h> 33 34 #include <drm/drm_modeset_lock.h> 35 36 struct drm_file; 37 struct drm_device; 38 struct drm_atomic_state; 39 struct drm_mode_fb_cmd2; 40 struct drm_format_info; 41 struct drm_display_mode; 42 43 /** 44 * struct drm_mode_config_funcs - basic driver provided mode setting functions 45 * 46 * Some global (i.e. not per-CRTC, connector, etc) mode setting functions that 47 * involve drivers. 48 */ 49 struct drm_mode_config_funcs { 50 /** 51 * @fb_create: 52 * 53 * Create a new framebuffer object. The core does basic checks on the 54 * requested metadata, but most of that is left to the driver. See 55 * &struct drm_mode_fb_cmd2 for details. 56 * 57 * To validate the pixel format and modifier drivers can use 58 * drm_any_plane_has_format() to make sure at least one plane supports 59 * the requested values. Note that the driver must first determine the 60 * actual modifier used if the request doesn't have it specified, 61 * ie. when (@mode_cmd->flags & DRM_MODE_FB_MODIFIERS) == 0. 62 * 63 * If the parameters are deemed valid and the backing storage objects in 64 * the underlying memory manager all exist, then the driver allocates 65 * a new &drm_framebuffer structure, subclassed to contain 66 * driver-specific information (like the internal native buffer object 67 * references). It also needs to fill out all relevant metadata, which 68 * should be done by calling drm_helper_mode_fill_fb_struct(). 69 * 70 * The initialization is finalized by calling drm_framebuffer_init(), 71 * which registers the framebuffer and makes it accessible to other 72 * threads. 73 * 74 * RETURNS: 75 * 76 * A new framebuffer with an initial reference count of 1 or a negative 77 * error code encoded with ERR_PTR(). 78 */ 79 struct drm_framebuffer *(*fb_create)(struct drm_device *dev, 80 struct drm_file *file_priv, 81 const struct drm_mode_fb_cmd2 *mode_cmd); 82 83 /** 84 * @get_format_info: 85 * 86 * Allows a driver to return custom format information for special 87 * fb layouts (eg. ones with auxiliary compression control planes). 88 * 89 * RETURNS: 90 * 91 * The format information specific to the given fb metadata, or 92 * NULL if none is found. 93 */ 94 const struct drm_format_info *(*get_format_info)(const struct drm_mode_fb_cmd2 *mode_cmd); 95 96 /** 97 * @output_poll_changed: 98 * 99 * Callback used by helpers to inform the driver of output configuration 100 * changes. 101 * 102 * Drivers implementing fbdev emulation with the helpers can call 103 * drm_fb_helper_hotplug_changed from this hook to inform the fbdev 104 * helper of output changes. 105 * 106 * FIXME: 107 * 108 * Except that there's no vtable for device-level helper callbacks 109 * there's no reason this is a core function. 110 */ 111 void (*output_poll_changed)(struct drm_device *dev); 112 113 /** 114 * @mode_valid: 115 * 116 * Device specific validation of display modes. Can be used to reject 117 * modes that can never be supported. Only device wide constraints can 118 * be checked here. crtc/encoder/bridge/connector specific constraints 119 * should be checked in the .mode_valid() hook for each specific object. 120 */ 121 enum drm_mode_status (*mode_valid)(struct drm_device *dev, 122 const struct drm_display_mode *mode); 123 124 /** 125 * @atomic_check: 126 * 127 * This is the only hook to validate an atomic modeset update. This 128 * function must reject any modeset and state changes which the hardware 129 * or driver doesn't support. This includes but is of course not limited 130 * to: 131 * 132 * - Checking that the modes, framebuffers, scaling and placement 133 * requirements and so on are within the limits of the hardware. 134 * 135 * - Checking that any hidden shared resources are not oversubscribed. 136 * This can be shared PLLs, shared lanes, overall memory bandwidth, 137 * display fifo space (where shared between planes or maybe even 138 * CRTCs). 139 * 140 * - Checking that virtualized resources exported to userspace are not 141 * oversubscribed. For various reasons it can make sense to expose 142 * more planes, crtcs or encoders than which are physically there. One 143 * example is dual-pipe operations (which generally should be hidden 144 * from userspace if when lockstepped in hardware, exposed otherwise), 145 * where a plane might need 1 hardware plane (if it's just on one 146 * pipe), 2 hardware planes (when it spans both pipes) or maybe even 147 * shared a hardware plane with a 2nd plane (if there's a compatible 148 * plane requested on the area handled by the other pipe). 149 * 150 * - Check that any transitional state is possible and that if 151 * requested, the update can indeed be done in the vblank period 152 * without temporarily disabling some functions. 153 * 154 * - Check any other constraints the driver or hardware might have. 155 * 156 * - This callback also needs to correctly fill out the &drm_crtc_state 157 * in this update to make sure that drm_atomic_crtc_needs_modeset() 158 * reflects the nature of the possible update and returns true if and 159 * only if the update cannot be applied without tearing within one 160 * vblank on that CRTC. The core uses that information to reject 161 * updates which require a full modeset (i.e. blanking the screen, or 162 * at least pausing updates for a substantial amount of time) if 163 * userspace has disallowed that in its request. 164 * 165 * - The driver also does not need to repeat basic input validation 166 * like done for the corresponding legacy entry points. The core does 167 * that before calling this hook. 168 * 169 * See the documentation of @atomic_commit for an exhaustive list of 170 * error conditions which don't have to be checked at the in this 171 * callback. 172 * 173 * See the documentation for &struct drm_atomic_state for how exactly 174 * an atomic modeset update is described. 175 * 176 * Drivers using the atomic helpers can implement this hook using 177 * drm_atomic_helper_check(), or one of the exported sub-functions of 178 * it. 179 * 180 * RETURNS: 181 * 182 * 0 on success or one of the below negative error codes: 183 * 184 * - -EINVAL, if any of the above constraints are violated. 185 * 186 * - -EDEADLK, when returned from an attempt to acquire an additional 187 * &drm_modeset_lock through drm_modeset_lock(). 188 * 189 * - -ENOMEM, if allocating additional state sub-structures failed due 190 * to lack of memory. 191 * 192 * - -EINTR, -EAGAIN or -ERESTARTSYS, if the IOCTL should be restarted. 193 * This can either be due to a pending signal, or because the driver 194 * needs to completely bail out to recover from an exceptional 195 * situation like a GPU hang. From a userspace point all errors are 196 * treated equally. 197 */ 198 int (*atomic_check)(struct drm_device *dev, 199 struct drm_atomic_state *state); 200 201 /** 202 * @atomic_commit: 203 * 204 * This is the only hook to commit an atomic modeset update. The core 205 * guarantees that @atomic_check has been called successfully before 206 * calling this function, and that nothing has been changed in the 207 * interim. 208 * 209 * See the documentation for &struct drm_atomic_state for how exactly 210 * an atomic modeset update is described. 211 * 212 * Drivers using the atomic helpers can implement this hook using 213 * drm_atomic_helper_commit(), or one of the exported sub-functions of 214 * it. 215 * 216 * Nonblocking commits (as indicated with the nonblock parameter) must 217 * do any preparatory work which might result in an unsuccessful commit 218 * in the context of this callback. The only exceptions are hardware 219 * errors resulting in -EIO. But even in that case the driver must 220 * ensure that the display pipe is at least running, to avoid 221 * compositors crashing when pageflips don't work. Anything else, 222 * specifically committing the update to the hardware, should be done 223 * without blocking the caller. For updates which do not require a 224 * modeset this must be guaranteed. 225 * 226 * The driver must wait for any pending rendering to the new 227 * framebuffers to complete before executing the flip. It should also 228 * wait for any pending rendering from other drivers if the underlying 229 * buffer is a shared dma-buf. Nonblocking commits must not wait for 230 * rendering in the context of this callback. 231 * 232 * An application can request to be notified when the atomic commit has 233 * completed. These events are per-CRTC and can be distinguished by the 234 * CRTC index supplied in &drm_event to userspace. 235 * 236 * The drm core will supply a &struct drm_event in each CRTC's 237 * &drm_crtc_state.event. See the documentation for 238 * &drm_crtc_state.event for more details about the precise semantics of 239 * this event. 240 * 241 * NOTE: 242 * 243 * Drivers are not allowed to shut down any display pipe successfully 244 * enabled through an atomic commit on their own. Doing so can result in 245 * compositors crashing if a page flip is suddenly rejected because the 246 * pipe is off. 247 * 248 * RETURNS: 249 * 250 * 0 on success or one of the below negative error codes: 251 * 252 * - -EBUSY, if a nonblocking updated is requested and there is 253 * an earlier updated pending. Drivers are allowed to support a queue 254 * of outstanding updates, but currently no driver supports that. 255 * Note that drivers must wait for preceding updates to complete if a 256 * synchronous update is requested, they are not allowed to fail the 257 * commit in that case. 258 * 259 * - -ENOMEM, if the driver failed to allocate memory. Specifically 260 * this can happen when trying to pin framebuffers, which must only 261 * be done when committing the state. 262 * 263 * - -ENOSPC, as a refinement of the more generic -ENOMEM to indicate 264 * that the driver has run out of vram, iommu space or similar GPU 265 * address space needed for framebuffer. 266 * 267 * - -EIO, if the hardware completely died. 268 * 269 * - -EINTR, -EAGAIN or -ERESTARTSYS, if the IOCTL should be restarted. 270 * This can either be due to a pending signal, or because the driver 271 * needs to completely bail out to recover from an exceptional 272 * situation like a GPU hang. From a userspace point of view all errors are 273 * treated equally. 274 * 275 * This list is exhaustive. Specifically this hook is not allowed to 276 * return -EINVAL (any invalid requests should be caught in 277 * @atomic_check) or -EDEADLK (this function must not acquire 278 * additional modeset locks). 279 */ 280 int (*atomic_commit)(struct drm_device *dev, 281 struct drm_atomic_state *state, 282 bool nonblock); 283 284 /** 285 * @atomic_state_alloc: 286 * 287 * This optional hook can be used by drivers that want to subclass struct 288 * &drm_atomic_state to be able to track their own driver-private global 289 * state easily. If this hook is implemented, drivers must also 290 * implement @atomic_state_clear and @atomic_state_free. 291 * 292 * Subclassing of &drm_atomic_state is deprecated in favour of using 293 * &drm_private_state and &drm_private_obj. 294 * 295 * RETURNS: 296 * 297 * A new &drm_atomic_state on success or NULL on failure. 298 */ 299 struct drm_atomic_state *(*atomic_state_alloc)(struct drm_device *dev); 300 301 /** 302 * @atomic_state_clear: 303 * 304 * This hook must clear any driver private state duplicated into the 305 * passed-in &drm_atomic_state. This hook is called when the caller 306 * encountered a &drm_modeset_lock deadlock and needs to drop all 307 * already acquired locks as part of the deadlock avoidance dance 308 * implemented in drm_modeset_backoff(). 309 * 310 * Any duplicated state must be invalidated since a concurrent atomic 311 * update might change it, and the drm atomic interfaces always apply 312 * updates as relative changes to the current state. 313 * 314 * Drivers that implement this must call drm_atomic_state_default_clear() 315 * to clear common state. 316 * 317 * Subclassing of &drm_atomic_state is deprecated in favour of using 318 * &drm_private_state and &drm_private_obj. 319 */ 320 void (*atomic_state_clear)(struct drm_atomic_state *state); 321 322 /** 323 * @atomic_state_free: 324 * 325 * This hook needs driver private resources and the &drm_atomic_state 326 * itself. Note that the core first calls drm_atomic_state_clear() to 327 * avoid code duplicate between the clear and free hooks. 328 * 329 * Drivers that implement this must call 330 * drm_atomic_state_default_release() to release common resources. 331 * 332 * Subclassing of &drm_atomic_state is deprecated in favour of using 333 * &drm_private_state and &drm_private_obj. 334 */ 335 void (*atomic_state_free)(struct drm_atomic_state *state); 336 }; 337 338 /** 339 * struct drm_mode_config - Mode configuration control structure 340 * @min_width: minimum fb pixel width on this device 341 * @min_height: minimum fb pixel height on this device 342 * @max_width: maximum fb pixel width on this device 343 * @max_height: maximum fb pixel height on this device 344 * @funcs: core driver provided mode setting functions 345 * @fb_base: base address of the framebuffer 346 * @poll_enabled: track polling support for this device 347 * @poll_running: track polling status for this device 348 * @delayed_event: track delayed poll uevent deliver for this device 349 * @output_poll_work: delayed work for polling in process context 350 * @preferred_depth: preferred RBG pixel depth, used by fb helpers 351 * @prefer_shadow: hint to userspace to prefer shadow-fb rendering 352 * @cursor_width: hint to userspace for max cursor width 353 * @cursor_height: hint to userspace for max cursor height 354 * @helper_private: mid-layer private data 355 * 356 * Core mode resource tracking structure. All CRTC, encoders, and connectors 357 * enumerated by the driver are added here, as are global properties. Some 358 * global restrictions are also here, e.g. dimension restrictions. 359 */ 360 struct drm_mode_config { 361 /** 362 * @mutex: 363 * 364 * This is the big scary modeset BKL which protects everything that 365 * isn't protect otherwise. Scope is unclear and fuzzy, try to remove 366 * anything from under its protection and move it into more well-scoped 367 * locks. 368 * 369 * The one important thing this protects is the use of @acquire_ctx. 370 */ 371 struct mutex mutex; 372 373 /** 374 * @connection_mutex: 375 * 376 * This protects connector state and the connector to encoder to CRTC 377 * routing chain. 378 * 379 * For atomic drivers specifically this protects &drm_connector.state. 380 */ 381 struct drm_modeset_lock connection_mutex; 382 383 /** 384 * @acquire_ctx: 385 * 386 * Global implicit acquire context used by atomic drivers for legacy 387 * IOCTLs. Deprecated, since implicit locking contexts make it 388 * impossible to use driver-private &struct drm_modeset_lock. Users of 389 * this must hold @mutex. 390 */ 391 struct drm_modeset_acquire_ctx *acquire_ctx; 392 393 /** 394 * @idr_mutex: 395 * 396 * Mutex for KMS ID allocation and management. Protects both @object_idr 397 * and @tile_idr. 398 */ 399 struct mutex idr_mutex; 400 401 /** 402 * @object_idr: 403 * 404 * Main KMS ID tracking object. Use this idr for all IDs, fb, crtc, 405 * connector, modes - just makes life easier to have only one. 406 */ 407 struct idr object_idr; 408 409 /** 410 * @tile_idr: 411 * 412 * Use this idr for allocating new IDs for tiled sinks like use in some 413 * high-res DP MST screens. 414 */ 415 struct idr tile_idr; 416 417 /** @fb_lock: Mutex to protect fb the global @fb_list and @num_fb. */ 418 struct mutex fb_lock; 419 /** @num_fb: Number of entries on @fb_list. */ 420 int num_fb; 421 /** @fb_list: List of all &struct drm_framebuffer. */ 422 struct list_head fb_list; 423 424 /** 425 * @connector_list_lock: Protects @num_connector and 426 * @connector_list and @connector_free_list. 427 */ 428 spinlock_t connector_list_lock; 429 /** 430 * @num_connector: Number of connectors on this device. Protected by 431 * @connector_list_lock. 432 */ 433 int num_connector; 434 /** 435 * @connector_ida: ID allocator for connector indices. 436 */ 437 struct ida connector_ida; 438 /** 439 * @connector_list: 440 * 441 * List of connector objects linked with &drm_connector.head. Protected 442 * by @connector_list_lock. Only use drm_for_each_connector_iter() and 443 * &struct drm_connector_list_iter to walk this list. 444 */ 445 struct list_head connector_list; 446 /** 447 * @connector_free_list: 448 * 449 * List of connector objects linked with &drm_connector.free_head. 450 * Protected by @connector_list_lock. Used by 451 * drm_for_each_connector_iter() and 452 * &struct drm_connector_list_iter to savely free connectors using 453 * @connector_free_work. 454 */ 455 struct llist_head connector_free_list; 456 /** 457 * @connector_free_work: Work to clean up @connector_free_list. 458 */ 459 struct work_struct connector_free_work; 460 461 /** 462 * @num_encoder: 463 * 464 * Number of encoders on this device. This is invariant over the 465 * lifetime of a device and hence doesn't need any locks. 466 */ 467 int num_encoder; 468 /** 469 * @encoder_list: 470 * 471 * List of encoder objects linked with &drm_encoder.head. This is 472 * invariant over the lifetime of a device and hence doesn't need any 473 * locks. 474 */ 475 struct list_head encoder_list; 476 477 /** 478 * @num_total_plane: 479 * 480 * Number of universal (i.e. with primary/curso) planes on this device. 481 * This is invariant over the lifetime of a device and hence doesn't 482 * need any locks. 483 */ 484 int num_total_plane; 485 /** 486 * @plane_list: 487 * 488 * List of plane objects linked with &drm_plane.head. This is invariant 489 * over the lifetime of a device and hence doesn't need any locks. 490 */ 491 struct list_head plane_list; 492 493 /** 494 * @num_crtc: 495 * 496 * Number of CRTCs on this device linked with &drm_crtc.head. This is invariant over the lifetime 497 * of a device and hence doesn't need any locks. 498 */ 499 int num_crtc; 500 /** 501 * @crtc_list: 502 * 503 * List of CRTC objects linked with &drm_crtc.head. This is invariant 504 * over the lifetime of a device and hence doesn't need any locks. 505 */ 506 struct list_head crtc_list; 507 508 /** 509 * @property_list: 510 * 511 * List of property type objects linked with &drm_property.head. This is 512 * invariant over the lifetime of a device and hence doesn't need any 513 * locks. 514 */ 515 struct list_head property_list; 516 517 /** 518 * @privobj_list: 519 * 520 * List of private objects linked with &drm_private_obj.head. This is 521 * invariant over the lifetime of a device and hence doesn't need any 522 * locks. 523 */ 524 struct list_head privobj_list; 525 526 int min_width, min_height; 527 int max_width, max_height; 528 const struct drm_mode_config_funcs *funcs; 529 resource_size_t fb_base; 530 531 /* output poll support */ 532 bool poll_enabled; 533 bool poll_running; 534 bool delayed_event; 535 struct delayed_work output_poll_work; 536 537 /** 538 * @blob_lock: 539 * 540 * Mutex for blob property allocation and management, protects 541 * @property_blob_list and &drm_file.blobs. 542 */ 543 struct mutex blob_lock; 544 545 /** 546 * @property_blob_list: 547 * 548 * List of all the blob property objects linked with 549 * &drm_property_blob.head. Protected by @blob_lock. 550 */ 551 struct list_head property_blob_list; 552 553 /* pointers to standard properties */ 554 555 /** 556 * @edid_property: Default connector property to hold the EDID of the 557 * currently connected sink, if any. 558 */ 559 struct drm_property *edid_property; 560 /** 561 * @dpms_property: Default connector property to control the 562 * connector's DPMS state. 563 */ 564 struct drm_property *dpms_property; 565 /** 566 * @path_property: Default connector property to hold the DP MST path 567 * for the port. 568 */ 569 struct drm_property *path_property; 570 /** 571 * @tile_property: Default connector property to store the tile 572 * position of a tiled screen, for sinks which need to be driven with 573 * multiple CRTCs. 574 */ 575 struct drm_property *tile_property; 576 /** 577 * @link_status_property: Default connector property for link status 578 * of a connector 579 */ 580 struct drm_property *link_status_property; 581 /** 582 * @plane_type_property: Default plane property to differentiate 583 * CURSOR, PRIMARY and OVERLAY legacy uses of planes. 584 */ 585 struct drm_property *plane_type_property; 586 /** 587 * @prop_src_x: Default atomic plane property for the plane source 588 * position in the connected &drm_framebuffer. 589 */ 590 struct drm_property *prop_src_x; 591 /** 592 * @prop_src_y: Default atomic plane property for the plane source 593 * position in the connected &drm_framebuffer. 594 */ 595 struct drm_property *prop_src_y; 596 /** 597 * @prop_src_w: Default atomic plane property for the plane source 598 * position in the connected &drm_framebuffer. 599 */ 600 struct drm_property *prop_src_w; 601 /** 602 * @prop_src_h: Default atomic plane property for the plane source 603 * position in the connected &drm_framebuffer. 604 */ 605 struct drm_property *prop_src_h; 606 /** 607 * @prop_crtc_x: Default atomic plane property for the plane destination 608 * position in the &drm_crtc is is being shown on. 609 */ 610 struct drm_property *prop_crtc_x; 611 /** 612 * @prop_crtc_y: Default atomic plane property for the plane destination 613 * position in the &drm_crtc is is being shown on. 614 */ 615 struct drm_property *prop_crtc_y; 616 /** 617 * @prop_crtc_w: Default atomic plane property for the plane destination 618 * position in the &drm_crtc is is being shown on. 619 */ 620 struct drm_property *prop_crtc_w; 621 /** 622 * @prop_crtc_h: Default atomic plane property for the plane destination 623 * position in the &drm_crtc is is being shown on. 624 */ 625 struct drm_property *prop_crtc_h; 626 /** 627 * @prop_fb_id: Default atomic plane property to specify the 628 * &drm_framebuffer. 629 */ 630 struct drm_property *prop_fb_id; 631 /** 632 * @prop_in_fence_fd: Sync File fd representing the incoming fences 633 * for a Plane. 634 */ 635 struct drm_property *prop_in_fence_fd; 636 /** 637 * @prop_out_fence_ptr: Sync File fd pointer representing the 638 * outgoing fences for a CRTC. Userspace should provide a pointer to a 639 * value of type s32, and then cast that pointer to u64. 640 */ 641 struct drm_property *prop_out_fence_ptr; 642 /** 643 * @prop_crtc_id: Default atomic plane property to specify the 644 * &drm_crtc. 645 */ 646 struct drm_property *prop_crtc_id; 647 /** 648 * @prop_fb_damage_clips: Optional plane property to mark damaged 649 * regions on the plane in framebuffer coordinates of the framebuffer 650 * attached to the plane. 651 * 652 * The layout of blob data is simply an array of &drm_mode_rect. Unlike 653 * plane src coordinates, damage clips are not in 16.16 fixed point. 654 */ 655 struct drm_property *prop_fb_damage_clips; 656 /** 657 * @prop_active: Default atomic CRTC property to control the active 658 * state, which is the simplified implementation for DPMS in atomic 659 * drivers. 660 */ 661 struct drm_property *prop_active; 662 /** 663 * @prop_mode_id: Default atomic CRTC property to set the mode for a 664 * CRTC. A 0 mode implies that the CRTC is entirely disabled - all 665 * connectors must be of and active must be set to disabled, too. 666 */ 667 struct drm_property *prop_mode_id; 668 /** 669 * @prop_vrr_enabled: Default atomic CRTC property to indicate 670 * whether variable refresh rate should be enabled on the CRTC. 671 */ 672 struct drm_property *prop_vrr_enabled; 673 674 /** 675 * @dvi_i_subconnector_property: Optional DVI-I property to 676 * differentiate between analog or digital mode. 677 */ 678 struct drm_property *dvi_i_subconnector_property; 679 /** 680 * @dvi_i_select_subconnector_property: Optional DVI-I property to 681 * select between analog or digital mode. 682 */ 683 struct drm_property *dvi_i_select_subconnector_property; 684 685 /** 686 * @tv_subconnector_property: Optional TV property to differentiate 687 * between different TV connector types. 688 */ 689 struct drm_property *tv_subconnector_property; 690 /** 691 * @tv_select_subconnector_property: Optional TV property to select 692 * between different TV connector types. 693 */ 694 struct drm_property *tv_select_subconnector_property; 695 /** 696 * @tv_mode_property: Optional TV property to select 697 * the output TV mode. 698 */ 699 struct drm_property *tv_mode_property; 700 /** 701 * @tv_left_margin_property: Optional TV property to set the left 702 * margin (expressed in pixels). 703 */ 704 struct drm_property *tv_left_margin_property; 705 /** 706 * @tv_right_margin_property: Optional TV property to set the right 707 * margin (expressed in pixels). 708 */ 709 struct drm_property *tv_right_margin_property; 710 /** 711 * @tv_top_margin_property: Optional TV property to set the right 712 * margin (expressed in pixels). 713 */ 714 struct drm_property *tv_top_margin_property; 715 /** 716 * @tv_bottom_margin_property: Optional TV property to set the right 717 * margin (expressed in pixels). 718 */ 719 struct drm_property *tv_bottom_margin_property; 720 /** 721 * @tv_brightness_property: Optional TV property to set the 722 * brightness. 723 */ 724 struct drm_property *tv_brightness_property; 725 /** 726 * @tv_contrast_property: Optional TV property to set the 727 * contrast. 728 */ 729 struct drm_property *tv_contrast_property; 730 /** 731 * @tv_flicker_reduction_property: Optional TV property to control the 732 * flicker reduction mode. 733 */ 734 struct drm_property *tv_flicker_reduction_property; 735 /** 736 * @tv_overscan_property: Optional TV property to control the overscan 737 * setting. 738 */ 739 struct drm_property *tv_overscan_property; 740 /** 741 * @tv_saturation_property: Optional TV property to set the 742 * saturation. 743 */ 744 struct drm_property *tv_saturation_property; 745 /** 746 * @tv_hue_property: Optional TV property to set the hue. 747 */ 748 struct drm_property *tv_hue_property; 749 750 /** 751 * @scaling_mode_property: Optional connector property to control the 752 * upscaling, mostly used for built-in panels. 753 */ 754 struct drm_property *scaling_mode_property; 755 /** 756 * @aspect_ratio_property: Optional connector property to control the 757 * HDMI infoframe aspect ratio setting. 758 */ 759 struct drm_property *aspect_ratio_property; 760 /** 761 * @content_type_property: Optional connector property to control the 762 * HDMI infoframe content type setting. 763 */ 764 struct drm_property *content_type_property; 765 /** 766 * @degamma_lut_property: Optional CRTC property to set the LUT used to 767 * convert the framebuffer's colors to linear gamma. 768 */ 769 struct drm_property *degamma_lut_property; 770 /** 771 * @degamma_lut_size_property: Optional CRTC property for the size of 772 * the degamma LUT as supported by the driver (read-only). 773 */ 774 struct drm_property *degamma_lut_size_property; 775 /** 776 * @ctm_property: Optional CRTC property to set the 777 * matrix used to convert colors after the lookup in the 778 * degamma LUT. 779 */ 780 struct drm_property *ctm_property; 781 /** 782 * @gamma_lut_property: Optional CRTC property to set the LUT used to 783 * convert the colors, after the CTM matrix, to the gamma space of the 784 * connected screen. 785 */ 786 struct drm_property *gamma_lut_property; 787 /** 788 * @gamma_lut_size_property: Optional CRTC property for the size of the 789 * gamma LUT as supported by the driver (read-only). 790 */ 791 struct drm_property *gamma_lut_size_property; 792 793 /** 794 * @suggested_x_property: Optional connector property with a hint for 795 * the position of the output on the host's screen. 796 */ 797 struct drm_property *suggested_x_property; 798 /** 799 * @suggested_y_property: Optional connector property with a hint for 800 * the position of the output on the host's screen. 801 */ 802 struct drm_property *suggested_y_property; 803 804 /** 805 * @non_desktop_property: Optional connector property with a hint 806 * that device isn't a standard display, and the console/desktop, 807 * should not be displayed on it. 808 */ 809 struct drm_property *non_desktop_property; 810 811 /** 812 * @panel_orientation_property: Optional connector property indicating 813 * how the lcd-panel is mounted inside the casing (e.g. normal or 814 * upside-down). 815 */ 816 struct drm_property *panel_orientation_property; 817 818 /** 819 * @writeback_fb_id_property: Property for writeback connectors, storing 820 * the ID of the output framebuffer. 821 * See also: drm_writeback_connector_init() 822 */ 823 struct drm_property *writeback_fb_id_property; 824 825 /** 826 * @writeback_pixel_formats_property: Property for writeback connectors, 827 * storing an array of the supported pixel formats for the writeback 828 * engine (read-only). 829 * See also: drm_writeback_connector_init() 830 */ 831 struct drm_property *writeback_pixel_formats_property; 832 /** 833 * @writeback_out_fence_ptr_property: Property for writeback connectors, 834 * fd pointer representing the outgoing fences for a writeback 835 * connector. Userspace should provide a pointer to a value of type s32, 836 * and then cast that pointer to u64. 837 * See also: drm_writeback_connector_init() 838 */ 839 struct drm_property *writeback_out_fence_ptr_property; 840 841 /** 842 * @hdr_output_metadata_property: Connector property containing hdr 843 * metatada. This will be provided by userspace compositors based 844 * on HDR content 845 */ 846 struct drm_property *hdr_output_metadata_property; 847 848 /** 849 * @content_protection_property: DRM ENUM property for content 850 * protection. See drm_connector_attach_content_protection_property(). 851 */ 852 struct drm_property *content_protection_property; 853 854 /** 855 * @hdcp_content_type_property: DRM ENUM property for type of 856 * Protected Content. 857 */ 858 struct drm_property *hdcp_content_type_property; 859 860 /* dumb ioctl parameters */ 861 uint32_t preferred_depth, prefer_shadow; 862 863 /** 864 * @prefer_shadow_fbdev: 865 * 866 * Hint to framebuffer emulation to prefer shadow-fb rendering. 867 */ 868 bool prefer_shadow_fbdev; 869 870 /** 871 * @quirk_addfb_prefer_xbgr_30bpp: 872 * 873 * Special hack for legacy ADDFB to keep nouveau userspace happy. Should 874 * only ever be set by the nouveau kernel driver. 875 */ 876 bool quirk_addfb_prefer_xbgr_30bpp; 877 878 /** 879 * @quirk_addfb_prefer_host_byte_order: 880 * 881 * When set to true drm_mode_addfb() will pick host byte order 882 * pixel_format when calling drm_mode_addfb2(). This is how 883 * drm_mode_addfb() should have worked from day one. It 884 * didn't though, so we ended up with quirks in both kernel 885 * and userspace drivers to deal with the broken behavior. 886 * Simply fixing drm_mode_addfb() unconditionally would break 887 * these drivers, so add a quirk bit here to allow drivers 888 * opt-in. 889 */ 890 bool quirk_addfb_prefer_host_byte_order; 891 892 /** 893 * @async_page_flip: Does this device support async flips on the primary 894 * plane? 895 */ 896 bool async_page_flip; 897 898 /** 899 * @allow_fb_modifiers: 900 * 901 * Whether the driver supports fb modifiers in the ADDFB2.1 ioctl call. 902 */ 903 bool allow_fb_modifiers; 904 905 /** 906 * @normalize_zpos: 907 * 908 * If true the drm core will call drm_atomic_normalize_zpos() as part of 909 * atomic mode checking from drm_atomic_helper_check() 910 */ 911 bool normalize_zpos; 912 913 /** 914 * @modifiers_property: Plane property to list support modifier/format 915 * combination. 916 */ 917 struct drm_property *modifiers_property; 918 919 /* cursor size */ 920 uint32_t cursor_width, cursor_height; 921 922 /** 923 * @suspend_state: 924 * 925 * Atomic state when suspended. 926 * Set by drm_mode_config_helper_suspend() and cleared by 927 * drm_mode_config_helper_resume(). 928 */ 929 struct drm_atomic_state *suspend_state; 930 931 const struct drm_mode_config_helper_funcs *helper_private; 932 }; 933 934 void drm_mode_config_init(struct drm_device *dev); 935 void drm_mode_config_reset(struct drm_device *dev); 936 void drm_mode_config_cleanup(struct drm_device *dev); 937 938 #endif 939