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