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 struct drm_display_mode; 40 41 /** 42 * struct drm_mode_config_funcs - basic driver provided mode setting functions 43 * 44 * Some global (i.e. not per-CRTC, connector, etc) mode setting functions that 45 * involve drivers. 46 */ 47 struct drm_mode_config_funcs { 48 /** 49 * @fb_create: 50 * 51 * Create a new framebuffer object. The core does basic checks on the 52 * requested metadata, but most of that is left to the driver. See 53 * &struct drm_mode_fb_cmd2 for details. 54 * 55 * To validate the pixel format and modifier drivers can use 56 * drm_any_plane_has_format() to make sure at least one plane supports 57 * the requested values. Note that the driver must first determine the 58 * actual modifier used if the request doesn't have it specified, 59 * ie. when (@mode_cmd->flags & DRM_MODE_FB_MODIFIERS) == 0. 60 * 61 * IMPORTANT: These implied modifiers for legacy userspace must be 62 * stored in struct &drm_framebuffer, including all relevant metadata 63 * like &drm_framebuffer.pitches and &drm_framebuffer.offsets if the 64 * modifier enables additional planes beyond the fourcc pixel format 65 * code. This is required by the GETFB2 ioctl. 66 * 67 * If the parameters are deemed valid and the backing storage objects in 68 * the underlying memory manager all exist, then the driver allocates 69 * a new &drm_framebuffer structure, subclassed to contain 70 * driver-specific information (like the internal native buffer object 71 * references). It also needs to fill out all relevant metadata, which 72 * should be done by calling drm_helper_mode_fill_fb_struct(). 73 * 74 * The initialization is finalized by calling drm_framebuffer_init(), 75 * which registers the framebuffer and makes it accessible to other 76 * threads. 77 * 78 * RETURNS: 79 * 80 * A new framebuffer with an initial reference count of 1 or a negative 81 * error code encoded with ERR_PTR(). 82 */ 83 struct drm_framebuffer *(*fb_create)(struct drm_device *dev, 84 struct drm_file *file_priv, 85 const struct drm_mode_fb_cmd2 *mode_cmd); 86 87 /** 88 * @get_format_info: 89 * 90 * Allows a driver to return custom format information for special 91 * fb layouts (eg. ones with auxiliary compression control planes). 92 * 93 * RETURNS: 94 * 95 * The format information specific to the given fb metadata, or 96 * NULL if none is found. 97 */ 98 const struct drm_format_info *(*get_format_info)(const struct drm_mode_fb_cmd2 *mode_cmd); 99 100 /** 101 * @output_poll_changed: 102 * 103 * Callback used by helpers to inform the driver of output configuration 104 * changes. 105 * 106 * Drivers implementing fbdev emulation use drm_kms_helper_hotplug_event() 107 * to call this hook to inform the fbdev helper of output changes. 108 * 109 * This hook is deprecated, drivers should instead use 110 * drm_fbdev_generic_setup() which takes care of any necessary 111 * hotplug event forwarding already without further involvement by 112 * the driver. 113 */ 114 void (*output_poll_changed)(struct drm_device *dev); 115 116 /** 117 * @mode_valid: 118 * 119 * Device specific validation of display modes. Can be used to reject 120 * modes that can never be supported. Only device wide constraints can 121 * be checked here. crtc/encoder/bridge/connector specific constraints 122 * should be checked in the .mode_valid() hook for each specific object. 123 */ 124 enum drm_mode_status (*mode_valid)(struct drm_device *dev, 125 const struct drm_display_mode *mode); 126 127 /** 128 * @atomic_check: 129 * 130 * This is the only hook to validate an atomic modeset update. This 131 * function must reject any modeset and state changes which the hardware 132 * or driver doesn't support. This includes but is of course not limited 133 * to: 134 * 135 * - Checking that the modes, framebuffers, scaling and placement 136 * requirements and so on are within the limits of the hardware. 137 * 138 * - Checking that any hidden shared resources are not oversubscribed. 139 * This can be shared PLLs, shared lanes, overall memory bandwidth, 140 * display fifo space (where shared between planes or maybe even 141 * CRTCs). 142 * 143 * - Checking that virtualized resources exported to userspace are not 144 * oversubscribed. For various reasons it can make sense to expose 145 * more planes, crtcs or encoders than which are physically there. One 146 * example is dual-pipe operations (which generally should be hidden 147 * from userspace if when lockstepped in hardware, exposed otherwise), 148 * where a plane might need 1 hardware plane (if it's just on one 149 * pipe), 2 hardware planes (when it spans both pipes) or maybe even 150 * shared a hardware plane with a 2nd plane (if there's a compatible 151 * plane requested on the area handled by the other pipe). 152 * 153 * - Check that any transitional state is possible and that if 154 * requested, the update can indeed be done in the vblank period 155 * without temporarily disabling some functions. 156 * 157 * - Check any other constraints the driver or hardware might have. 158 * 159 * - This callback also needs to correctly fill out the &drm_crtc_state 160 * in this update to make sure that drm_atomic_crtc_needs_modeset() 161 * reflects the nature of the possible update and returns true if and 162 * only if the update cannot be applied without tearing within one 163 * vblank on that CRTC. The core uses that information to reject 164 * updates which require a full modeset (i.e. blanking the screen, or 165 * at least pausing updates for a substantial amount of time) if 166 * userspace has disallowed that in its request. 167 * 168 * - The driver also does not need to repeat basic input validation 169 * like done for the corresponding legacy entry points. The core does 170 * that before calling this hook. 171 * 172 * See the documentation of @atomic_commit for an exhaustive list of 173 * error conditions which don't have to be checked at the in this 174 * callback. 175 * 176 * See the documentation for &struct drm_atomic_state for how exactly 177 * an atomic modeset update is described. 178 * 179 * Drivers using the atomic helpers can implement this hook using 180 * drm_atomic_helper_check(), or one of the exported sub-functions of 181 * it. 182 * 183 * RETURNS: 184 * 185 * 0 on success or one of the below negative error codes: 186 * 187 * - -EINVAL, if any of the above constraints are violated. 188 * 189 * - -EDEADLK, when returned from an attempt to acquire an additional 190 * &drm_modeset_lock through drm_modeset_lock(). 191 * 192 * - -ENOMEM, if allocating additional state sub-structures failed due 193 * to lack of memory. 194 * 195 * - -EINTR, -EAGAIN or -ERESTARTSYS, if the IOCTL should be restarted. 196 * This can either be due to a pending signal, or because the driver 197 * needs to completely bail out to recover from an exceptional 198 * situation like a GPU hang. From a userspace point all errors are 199 * treated equally. 200 */ 201 int (*atomic_check)(struct drm_device *dev, 202 struct drm_atomic_state *state); 203 204 /** 205 * @atomic_commit: 206 * 207 * This is the only hook to commit an atomic modeset update. The core 208 * guarantees that @atomic_check has been called successfully before 209 * calling this function, and that nothing has been changed in the 210 * interim. 211 * 212 * See the documentation for &struct drm_atomic_state for how exactly 213 * an atomic modeset update is described. 214 * 215 * Drivers using the atomic helpers can implement this hook using 216 * drm_atomic_helper_commit(), or one of the exported sub-functions of 217 * it. 218 * 219 * Nonblocking commits (as indicated with the nonblock parameter) must 220 * do any preparatory work which might result in an unsuccessful commit 221 * in the context of this callback. The only exceptions are hardware 222 * errors resulting in -EIO. But even in that case the driver must 223 * ensure that the display pipe is at least running, to avoid 224 * compositors crashing when pageflips don't work. Anything else, 225 * specifically committing the update to the hardware, should be done 226 * without blocking the caller. For updates which do not require a 227 * modeset this must be guaranteed. 228 * 229 * The driver must wait for any pending rendering to the new 230 * framebuffers to complete before executing the flip. It should also 231 * wait for any pending rendering from other drivers if the underlying 232 * buffer is a shared dma-buf. Nonblocking commits must not wait for 233 * rendering in the context of this callback. 234 * 235 * An application can request to be notified when the atomic commit has 236 * completed. These events are per-CRTC and can be distinguished by the 237 * CRTC index supplied in &drm_event to userspace. 238 * 239 * The drm core will supply a &struct drm_event in each CRTC's 240 * &drm_crtc_state.event. See the documentation for 241 * &drm_crtc_state.event for more details about the precise semantics of 242 * this event. 243 * 244 * NOTE: 245 * 246 * Drivers are not allowed to shut down any display pipe successfully 247 * enabled through an atomic commit on their own. Doing so can result in 248 * compositors crashing if a page flip is suddenly rejected because the 249 * pipe is off. 250 * 251 * RETURNS: 252 * 253 * 0 on success or one of the below negative error codes: 254 * 255 * - -EBUSY, if a nonblocking updated is requested and there is 256 * an earlier updated pending. Drivers are allowed to support a queue 257 * of outstanding updates, but currently no driver supports that. 258 * Note that drivers must wait for preceding updates to complete if a 259 * synchronous update is requested, they are not allowed to fail the 260 * commit in that case. 261 * 262 * - -ENOMEM, if the driver failed to allocate memory. Specifically 263 * this can happen when trying to pin framebuffers, which must only 264 * be done when committing the state. 265 * 266 * - -ENOSPC, as a refinement of the more generic -ENOMEM to indicate 267 * that the driver has run out of vram, iommu space or similar GPU 268 * address space needed for framebuffer. 269 * 270 * - -EIO, if the hardware completely died. 271 * 272 * - -EINTR, -EAGAIN or -ERESTARTSYS, if the IOCTL should be restarted. 273 * This can either be due to a pending signal, or because the driver 274 * needs to completely bail out to recover from an exceptional 275 * situation like a GPU hang. From a userspace point of view all errors are 276 * treated equally. 277 * 278 * This list is exhaustive. Specifically this hook is not allowed to 279 * return -EINVAL (any invalid requests should be caught in 280 * @atomic_check) or -EDEADLK (this function must not acquire 281 * additional modeset locks). 282 */ 283 int (*atomic_commit)(struct drm_device *dev, 284 struct drm_atomic_state *state, 285 bool nonblock); 286 287 /** 288 * @atomic_state_alloc: 289 * 290 * This optional hook can be used by drivers that want to subclass struct 291 * &drm_atomic_state to be able to track their own driver-private global 292 * state easily. If this hook is implemented, drivers must also 293 * implement @atomic_state_clear and @atomic_state_free. 294 * 295 * Subclassing of &drm_atomic_state is deprecated in favour of using 296 * &drm_private_state and &drm_private_obj. 297 * 298 * RETURNS: 299 * 300 * A new &drm_atomic_state on success or NULL on failure. 301 */ 302 struct drm_atomic_state *(*atomic_state_alloc)(struct drm_device *dev); 303 304 /** 305 * @atomic_state_clear: 306 * 307 * This hook must clear any driver private state duplicated into the 308 * passed-in &drm_atomic_state. This hook is called when the caller 309 * encountered a &drm_modeset_lock deadlock and needs to drop all 310 * already acquired locks as part of the deadlock avoidance dance 311 * implemented in drm_modeset_backoff(). 312 * 313 * Any duplicated state must be invalidated since a concurrent atomic 314 * update might change it, and the drm atomic interfaces always apply 315 * updates as relative changes to the current state. 316 * 317 * Drivers that implement this must call drm_atomic_state_default_clear() 318 * to clear common state. 319 * 320 * Subclassing of &drm_atomic_state is deprecated in favour of using 321 * &drm_private_state and &drm_private_obj. 322 */ 323 void (*atomic_state_clear)(struct drm_atomic_state *state); 324 325 /** 326 * @atomic_state_free: 327 * 328 * This hook needs driver private resources and the &drm_atomic_state 329 * itself. Note that the core first calls drm_atomic_state_clear() to 330 * avoid code duplicate between the clear and free hooks. 331 * 332 * Drivers that implement this must call 333 * drm_atomic_state_default_release() to release common resources. 334 * 335 * Subclassing of &drm_atomic_state is deprecated in favour of using 336 * &drm_private_state and &drm_private_obj. 337 */ 338 void (*atomic_state_free)(struct drm_atomic_state *state); 339 }; 340 341 /** 342 * struct drm_mode_config - Mode configuration control structure 343 * @min_width: minimum fb pixel width on this device 344 * @min_height: minimum fb pixel height on this device 345 * @max_width: maximum fb pixel width on this device 346 * @max_height: maximum fb pixel height on this device 347 * @funcs: core driver provided mode setting functions 348 * @fb_base: base address of the framebuffer 349 * @poll_enabled: track polling support for this device 350 * @poll_running: track polling status for this device 351 * @delayed_event: track delayed poll uevent deliver for this device 352 * @output_poll_work: delayed work for polling in process context 353 * @preferred_depth: preferred RBG pixel depth, used by fb helpers 354 * @prefer_shadow: hint to userspace to prefer shadow-fb rendering 355 * @cursor_width: hint to userspace for max cursor width 356 * @cursor_height: hint to userspace for max cursor height 357 * @helper_private: mid-layer private data 358 * 359 * Core mode resource tracking structure. All CRTC, encoders, and connectors 360 * enumerated by the driver are added here, as are global properties. Some 361 * global restrictions are also here, e.g. dimension restrictions. 362 * 363 * Framebuffer sizes refer to the virtual screen that can be displayed by 364 * the CRTC. This can be different from the physical resolution programmed. 365 * The minimum width and height, stored in @min_width and @min_height, 366 * describe the smallest size of the framebuffer. It correlates to the 367 * minimum programmable resolution. 368 * The maximum width, stored in @max_width, is typically limited by the 369 * maximum pitch between two adjacent scanlines. The maximum height, stored 370 * in @max_height, is usually only limited by the amount of addressable video 371 * memory. For hardware that has no real maximum, drivers should pick a 372 * reasonable default. 373 * 374 * See also @DRM_SHADOW_PLANE_MAX_WIDTH and @DRM_SHADOW_PLANE_MAX_HEIGHT. 375 */ 376 struct drm_mode_config { 377 /** 378 * @mutex: 379 * 380 * This is the big scary modeset BKL which protects everything that 381 * isn't protect otherwise. Scope is unclear and fuzzy, try to remove 382 * anything from under its protection and move it into more well-scoped 383 * locks. 384 * 385 * The one important thing this protects is the use of @acquire_ctx. 386 */ 387 struct mutex mutex; 388 389 /** 390 * @connection_mutex: 391 * 392 * This protects connector state and the connector to encoder to CRTC 393 * routing chain. 394 * 395 * For atomic drivers specifically this protects &drm_connector.state. 396 */ 397 struct drm_modeset_lock connection_mutex; 398 399 /** 400 * @acquire_ctx: 401 * 402 * Global implicit acquire context used by atomic drivers for legacy 403 * IOCTLs. Deprecated, since implicit locking contexts make it 404 * impossible to use driver-private &struct drm_modeset_lock. Users of 405 * this must hold @mutex. 406 */ 407 struct drm_modeset_acquire_ctx *acquire_ctx; 408 409 /** 410 * @idr_mutex: 411 * 412 * Mutex for KMS ID allocation and management. Protects both @object_idr 413 * and @tile_idr. 414 */ 415 struct mutex idr_mutex; 416 417 /** 418 * @object_idr: 419 * 420 * Main KMS ID tracking object. Use this idr for all IDs, fb, crtc, 421 * connector, modes - just makes life easier to have only one. 422 */ 423 struct idr object_idr; 424 425 /** 426 * @tile_idr: 427 * 428 * Use this idr for allocating new IDs for tiled sinks like use in some 429 * high-res DP MST screens. 430 */ 431 struct idr tile_idr; 432 433 /** @fb_lock: Mutex to protect fb the global @fb_list and @num_fb. */ 434 struct mutex fb_lock; 435 /** @num_fb: Number of entries on @fb_list. */ 436 int num_fb; 437 /** @fb_list: List of all &struct drm_framebuffer. */ 438 struct list_head fb_list; 439 440 /** 441 * @connector_list_lock: Protects @num_connector and 442 * @connector_list and @connector_free_list. 443 */ 444 spinlock_t connector_list_lock; 445 /** 446 * @num_connector: Number of connectors on this device. Protected by 447 * @connector_list_lock. 448 */ 449 int num_connector; 450 /** 451 * @connector_ida: ID allocator for connector indices. 452 */ 453 struct ida connector_ida; 454 /** 455 * @connector_list: 456 * 457 * List of connector objects linked with &drm_connector.head. Protected 458 * by @connector_list_lock. Only use drm_for_each_connector_iter() and 459 * &struct drm_connector_list_iter to walk this list. 460 */ 461 struct list_head connector_list; 462 /** 463 * @connector_free_list: 464 * 465 * List of connector objects linked with &drm_connector.free_head. 466 * Protected by @connector_list_lock. Used by 467 * drm_for_each_connector_iter() and 468 * &struct drm_connector_list_iter to savely free connectors using 469 * @connector_free_work. 470 */ 471 struct llist_head connector_free_list; 472 /** 473 * @connector_free_work: Work to clean up @connector_free_list. 474 */ 475 struct work_struct connector_free_work; 476 477 /** 478 * @num_encoder: 479 * 480 * Number of encoders on this device. This is invariant over the 481 * lifetime of a device and hence doesn't need any locks. 482 */ 483 int num_encoder; 484 /** 485 * @encoder_list: 486 * 487 * List of encoder objects linked with &drm_encoder.head. This is 488 * invariant over the lifetime of a device and hence doesn't need any 489 * locks. 490 */ 491 struct list_head encoder_list; 492 493 /** 494 * @num_total_plane: 495 * 496 * Number of universal (i.e. with primary/curso) planes on this device. 497 * This is invariant over the lifetime of a device and hence doesn't 498 * need any locks. 499 */ 500 int num_total_plane; 501 /** 502 * @plane_list: 503 * 504 * List of plane objects linked with &drm_plane.head. This is invariant 505 * over the lifetime of a device and hence doesn't need any locks. 506 */ 507 struct list_head plane_list; 508 509 /** 510 * @num_crtc: 511 * 512 * Number of CRTCs on this device linked with &drm_crtc.head. This is invariant over the lifetime 513 * of a device and hence doesn't need any locks. 514 */ 515 int num_crtc; 516 /** 517 * @crtc_list: 518 * 519 * List of CRTC objects linked with &drm_crtc.head. This is invariant 520 * over the lifetime of a device and hence doesn't need any locks. 521 */ 522 struct list_head crtc_list; 523 524 /** 525 * @property_list: 526 * 527 * List of property type objects linked with &drm_property.head. This is 528 * invariant over the lifetime of a device and hence doesn't need any 529 * locks. 530 */ 531 struct list_head property_list; 532 533 /** 534 * @privobj_list: 535 * 536 * List of private objects linked with &drm_private_obj.head. This is 537 * invariant over the lifetime of a device and hence doesn't need any 538 * locks. 539 */ 540 struct list_head privobj_list; 541 542 int min_width, min_height; 543 int max_width, max_height; 544 const struct drm_mode_config_funcs *funcs; 545 resource_size_t fb_base; 546 547 /* output poll support */ 548 bool poll_enabled; 549 bool poll_running; 550 bool delayed_event; 551 struct delayed_work output_poll_work; 552 553 /** 554 * @blob_lock: 555 * 556 * Mutex for blob property allocation and management, protects 557 * @property_blob_list and &drm_file.blobs. 558 */ 559 struct mutex blob_lock; 560 561 /** 562 * @property_blob_list: 563 * 564 * List of all the blob property objects linked with 565 * &drm_property_blob.head. Protected by @blob_lock. 566 */ 567 struct list_head property_blob_list; 568 569 /* pointers to standard properties */ 570 571 /** 572 * @edid_property: Default connector property to hold the EDID of the 573 * currently connected sink, if any. 574 */ 575 struct drm_property *edid_property; 576 /** 577 * @dpms_property: Default connector property to control the 578 * connector's DPMS state. 579 */ 580 struct drm_property *dpms_property; 581 /** 582 * @path_property: Default connector property to hold the DP MST path 583 * for the port. 584 */ 585 struct drm_property *path_property; 586 /** 587 * @tile_property: Default connector property to store the tile 588 * position of a tiled screen, for sinks which need to be driven with 589 * multiple CRTCs. 590 */ 591 struct drm_property *tile_property; 592 /** 593 * @link_status_property: Default connector property for link status 594 * of a connector 595 */ 596 struct drm_property *link_status_property; 597 /** 598 * @plane_type_property: Default plane property to differentiate 599 * CURSOR, PRIMARY and OVERLAY legacy uses of planes. 600 */ 601 struct drm_property *plane_type_property; 602 /** 603 * @prop_src_x: Default atomic plane property for the plane source 604 * position in the connected &drm_framebuffer. 605 */ 606 struct drm_property *prop_src_x; 607 /** 608 * @prop_src_y: Default atomic plane property for the plane source 609 * position in the connected &drm_framebuffer. 610 */ 611 struct drm_property *prop_src_y; 612 /** 613 * @prop_src_w: Default atomic plane property for the plane source 614 * position in the connected &drm_framebuffer. 615 */ 616 struct drm_property *prop_src_w; 617 /** 618 * @prop_src_h: Default atomic plane property for the plane source 619 * position in the connected &drm_framebuffer. 620 */ 621 struct drm_property *prop_src_h; 622 /** 623 * @prop_crtc_x: Default atomic plane property for the plane destination 624 * position in the &drm_crtc is being shown on. 625 */ 626 struct drm_property *prop_crtc_x; 627 /** 628 * @prop_crtc_y: Default atomic plane property for the plane destination 629 * position in the &drm_crtc is being shown on. 630 */ 631 struct drm_property *prop_crtc_y; 632 /** 633 * @prop_crtc_w: Default atomic plane property for the plane destination 634 * position in the &drm_crtc is being shown on. 635 */ 636 struct drm_property *prop_crtc_w; 637 /** 638 * @prop_crtc_h: Default atomic plane property for the plane destination 639 * position in the &drm_crtc is being shown on. 640 */ 641 struct drm_property *prop_crtc_h; 642 /** 643 * @prop_fb_id: Default atomic plane property to specify the 644 * &drm_framebuffer. 645 */ 646 struct drm_property *prop_fb_id; 647 /** 648 * @prop_in_fence_fd: Sync File fd representing the incoming fences 649 * for a Plane. 650 */ 651 struct drm_property *prop_in_fence_fd; 652 /** 653 * @prop_out_fence_ptr: Sync File fd pointer representing the 654 * outgoing fences for a CRTC. Userspace should provide a pointer to a 655 * value of type s32, and then cast that pointer to u64. 656 */ 657 struct drm_property *prop_out_fence_ptr; 658 /** 659 * @prop_crtc_id: Default atomic plane property to specify the 660 * &drm_crtc. 661 */ 662 struct drm_property *prop_crtc_id; 663 /** 664 * @prop_fb_damage_clips: Optional plane property to mark damaged 665 * regions on the plane in framebuffer coordinates of the framebuffer 666 * attached to the plane. 667 * 668 * The layout of blob data is simply an array of &drm_mode_rect. Unlike 669 * plane src coordinates, damage clips are not in 16.16 fixed point. 670 */ 671 struct drm_property *prop_fb_damage_clips; 672 /** 673 * @prop_active: Default atomic CRTC property to control the active 674 * state, which is the simplified implementation for DPMS in atomic 675 * drivers. 676 */ 677 struct drm_property *prop_active; 678 /** 679 * @prop_mode_id: Default atomic CRTC property to set the mode for a 680 * CRTC. A 0 mode implies that the CRTC is entirely disabled - all 681 * connectors must be of and active must be set to disabled, too. 682 */ 683 struct drm_property *prop_mode_id; 684 /** 685 * @prop_vrr_enabled: Default atomic CRTC property to indicate 686 * whether variable refresh rate should be enabled on the CRTC. 687 */ 688 struct drm_property *prop_vrr_enabled; 689 690 /** 691 * @dvi_i_subconnector_property: Optional DVI-I property to 692 * differentiate between analog or digital mode. 693 */ 694 struct drm_property *dvi_i_subconnector_property; 695 /** 696 * @dvi_i_select_subconnector_property: Optional DVI-I property to 697 * select between analog or digital mode. 698 */ 699 struct drm_property *dvi_i_select_subconnector_property; 700 701 /** 702 * @dp_subconnector_property: Optional DP property to differentiate 703 * between different DP downstream port types. 704 */ 705 struct drm_property *dp_subconnector_property; 706 707 /** 708 * @tv_subconnector_property: Optional TV property to differentiate 709 * between different TV connector types. 710 */ 711 struct drm_property *tv_subconnector_property; 712 /** 713 * @tv_select_subconnector_property: Optional TV property to select 714 * between different TV connector types. 715 */ 716 struct drm_property *tv_select_subconnector_property; 717 /** 718 * @tv_mode_property: Optional TV property to select 719 * the output TV mode. 720 */ 721 struct drm_property *tv_mode_property; 722 /** 723 * @tv_left_margin_property: Optional TV property to set the left 724 * margin (expressed in pixels). 725 */ 726 struct drm_property *tv_left_margin_property; 727 /** 728 * @tv_right_margin_property: Optional TV property to set the right 729 * margin (expressed in pixels). 730 */ 731 struct drm_property *tv_right_margin_property; 732 /** 733 * @tv_top_margin_property: Optional TV property to set the right 734 * margin (expressed in pixels). 735 */ 736 struct drm_property *tv_top_margin_property; 737 /** 738 * @tv_bottom_margin_property: Optional TV property to set the right 739 * margin (expressed in pixels). 740 */ 741 struct drm_property *tv_bottom_margin_property; 742 /** 743 * @tv_brightness_property: Optional TV property to set the 744 * brightness. 745 */ 746 struct drm_property *tv_brightness_property; 747 /** 748 * @tv_contrast_property: Optional TV property to set the 749 * contrast. 750 */ 751 struct drm_property *tv_contrast_property; 752 /** 753 * @tv_flicker_reduction_property: Optional TV property to control the 754 * flicker reduction mode. 755 */ 756 struct drm_property *tv_flicker_reduction_property; 757 /** 758 * @tv_overscan_property: Optional TV property to control the overscan 759 * setting. 760 */ 761 struct drm_property *tv_overscan_property; 762 /** 763 * @tv_saturation_property: Optional TV property to set the 764 * saturation. 765 */ 766 struct drm_property *tv_saturation_property; 767 /** 768 * @tv_hue_property: Optional TV property to set the hue. 769 */ 770 struct drm_property *tv_hue_property; 771 772 /** 773 * @scaling_mode_property: Optional connector property to control the 774 * upscaling, mostly used for built-in panels. 775 */ 776 struct drm_property *scaling_mode_property; 777 /** 778 * @aspect_ratio_property: Optional connector property to control the 779 * HDMI infoframe aspect ratio setting. 780 */ 781 struct drm_property *aspect_ratio_property; 782 /** 783 * @content_type_property: Optional connector property to control the 784 * HDMI infoframe content type setting. 785 */ 786 struct drm_property *content_type_property; 787 /** 788 * @degamma_lut_property: Optional CRTC property to set the LUT used to 789 * convert the framebuffer's colors to linear gamma. 790 */ 791 struct drm_property *degamma_lut_property; 792 /** 793 * @degamma_lut_size_property: Optional CRTC property for the size of 794 * the degamma LUT as supported by the driver (read-only). 795 */ 796 struct drm_property *degamma_lut_size_property; 797 /** 798 * @ctm_property: Optional CRTC property to set the 799 * matrix used to convert colors after the lookup in the 800 * degamma LUT. 801 */ 802 struct drm_property *ctm_property; 803 /** 804 * @gamma_lut_property: Optional CRTC property to set the LUT used to 805 * convert the colors, after the CTM matrix, to the gamma space of the 806 * connected screen. 807 */ 808 struct drm_property *gamma_lut_property; 809 /** 810 * @gamma_lut_size_property: Optional CRTC property for the size of the 811 * gamma LUT as supported by the driver (read-only). 812 */ 813 struct drm_property *gamma_lut_size_property; 814 815 /** 816 * @suggested_x_property: Optional connector property with a hint for 817 * the position of the output on the host's screen. 818 */ 819 struct drm_property *suggested_x_property; 820 /** 821 * @suggested_y_property: Optional connector property with a hint for 822 * the position of the output on the host's screen. 823 */ 824 struct drm_property *suggested_y_property; 825 826 /** 827 * @non_desktop_property: Optional connector property with a hint 828 * that device isn't a standard display, and the console/desktop, 829 * should not be displayed on it. 830 */ 831 struct drm_property *non_desktop_property; 832 833 /** 834 * @panel_orientation_property: Optional connector property indicating 835 * how the lcd-panel is mounted inside the casing (e.g. normal or 836 * upside-down). 837 */ 838 struct drm_property *panel_orientation_property; 839 840 /** 841 * @writeback_fb_id_property: Property for writeback connectors, storing 842 * the ID of the output framebuffer. 843 * See also: drm_writeback_connector_init() 844 */ 845 struct drm_property *writeback_fb_id_property; 846 847 /** 848 * @writeback_pixel_formats_property: Property for writeback connectors, 849 * storing an array of the supported pixel formats for the writeback 850 * engine (read-only). 851 * See also: drm_writeback_connector_init() 852 */ 853 struct drm_property *writeback_pixel_formats_property; 854 /** 855 * @writeback_out_fence_ptr_property: Property for writeback connectors, 856 * fd pointer representing the outgoing fences for a writeback 857 * connector. Userspace should provide a pointer to a value of type s32, 858 * and then cast that pointer to u64. 859 * See also: drm_writeback_connector_init() 860 */ 861 struct drm_property *writeback_out_fence_ptr_property; 862 863 /** 864 * @hdr_output_metadata_property: Connector property containing hdr 865 * metatada. This will be provided by userspace compositors based 866 * on HDR content 867 */ 868 struct drm_property *hdr_output_metadata_property; 869 870 /** 871 * @content_protection_property: DRM ENUM property for content 872 * protection. See drm_connector_attach_content_protection_property(). 873 */ 874 struct drm_property *content_protection_property; 875 876 /** 877 * @hdcp_content_type_property: DRM ENUM property for type of 878 * Protected Content. 879 */ 880 struct drm_property *hdcp_content_type_property; 881 882 /* dumb ioctl parameters */ 883 uint32_t preferred_depth, prefer_shadow; 884 885 /** 886 * @prefer_shadow_fbdev: 887 * 888 * Hint to framebuffer emulation to prefer shadow-fb rendering. 889 */ 890 bool prefer_shadow_fbdev; 891 892 /** 893 * @quirk_addfb_prefer_xbgr_30bpp: 894 * 895 * Special hack for legacy ADDFB to keep nouveau userspace happy. Should 896 * only ever be set by the nouveau kernel driver. 897 */ 898 bool quirk_addfb_prefer_xbgr_30bpp; 899 900 /** 901 * @quirk_addfb_prefer_host_byte_order: 902 * 903 * When set to true drm_mode_addfb() will pick host byte order 904 * pixel_format when calling drm_mode_addfb2(). This is how 905 * drm_mode_addfb() should have worked from day one. It 906 * didn't though, so we ended up with quirks in both kernel 907 * and userspace drivers to deal with the broken behavior. 908 * Simply fixing drm_mode_addfb() unconditionally would break 909 * these drivers, so add a quirk bit here to allow drivers 910 * opt-in. 911 */ 912 bool quirk_addfb_prefer_host_byte_order; 913 914 /** 915 * @async_page_flip: Does this device support async flips on the primary 916 * plane? 917 */ 918 bool async_page_flip; 919 920 /** 921 * @fb_modifiers_not_supported: 922 * 923 * When this flag is set, the DRM device will not expose modifier 924 * support to userspace. This is only used by legacy drivers that infer 925 * the buffer layout through heuristics without using modifiers. New 926 * drivers shall not set fhis flag. 927 */ 928 bool fb_modifiers_not_supported; 929 930 /** 931 * @normalize_zpos: 932 * 933 * If true the drm core will call drm_atomic_normalize_zpos() as part of 934 * atomic mode checking from drm_atomic_helper_check() 935 */ 936 bool normalize_zpos; 937 938 /** 939 * @modifiers_property: Plane property to list support modifier/format 940 * combination. 941 */ 942 struct drm_property *modifiers_property; 943 944 /* cursor size */ 945 uint32_t cursor_width, cursor_height; 946 947 /** 948 * @suspend_state: 949 * 950 * Atomic state when suspended. 951 * Set by drm_mode_config_helper_suspend() and cleared by 952 * drm_mode_config_helper_resume(). 953 */ 954 struct drm_atomic_state *suspend_state; 955 956 const struct drm_mode_config_helper_funcs *helper_private; 957 }; 958 959 int __must_check drmm_mode_config_init(struct drm_device *dev); 960 961 /** 962 * drm_mode_config_init - DRM mode_configuration structure initialization 963 * @dev: DRM device 964 * 965 * This is the unmanaged version of drmm_mode_config_init() for drivers which 966 * still explicitly call drm_mode_config_cleanup(). 967 * 968 * FIXME: This function is deprecated and drivers should be converted over to 969 * drmm_mode_config_init(). 970 */ 971 static inline int drm_mode_config_init(struct drm_device *dev) 972 { 973 return drmm_mode_config_init(dev); 974 } 975 976 void drm_mode_config_reset(struct drm_device *dev); 977 void drm_mode_config_cleanup(struct drm_device *dev); 978 979 #endif 980