2 * Copyright (c) 2006-2008 Intel Corporation
3 * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
4 * Copyright (c) 2008 Red Hat Inc.
6 * DRM core CRTC related functions
8 * Permission to use, copy, modify, distribute, and sell this software and its
9 * documentation for any purpose is hereby granted without fee, provided that
10 * the above copyright notice appear in all copies and that both that copyright
11 * notice and this permission notice appear in supporting documentation, and
12 * that the name of the copyright holders not be used in advertising or
13 * publicity pertaining to distribution of the software without specific,
14 * written prior permission. The copyright holders make no representations
15 * about the suitability of this software for any purpose. It is provided "as
16 * is" without express or implied warranty.
18 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
19 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
20 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
21 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
22 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
23 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
28 * Eric Anholt <eric@anholt.net>
29 * Dave Airlie <airlied@linux.ie>
30 * Jesse Barnes <jesse.barnes@intel.com>
32 #include <linux/ctype.h>
33 #include <linux/list.h>
34 #include <linux/slab.h>
35 #include <linux/export.h>
37 #include <drm/drm_crtc.h>
38 #include <drm/drm_edid.h>
39 #include <drm/drm_fourcc.h>
42 * drm_modeset_lock_all - take all modeset locks
45 * This function takes all modeset locks, suitable where a more fine-grained
46 * scheme isn't (yet) implemented.
48 void drm_modeset_lock_all(struct drm_device
*dev
)
50 struct drm_crtc
*crtc
;
52 mutex_lock(&dev
->mode_config
.mutex
);
54 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
)
55 mutex_lock_nest_lock(&crtc
->mutex
, &dev
->mode_config
.mutex
);
57 EXPORT_SYMBOL(drm_modeset_lock_all
);
60 * drm_modeset_unlock_all - drop all modeset locks
63 void drm_modeset_unlock_all(struct drm_device
*dev
)
65 struct drm_crtc
*crtc
;
67 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
)
68 mutex_unlock(&crtc
->mutex
);
70 mutex_unlock(&dev
->mode_config
.mutex
);
72 EXPORT_SYMBOL(drm_modeset_unlock_all
);
75 * drm_warn_on_modeset_not_all_locked - check that all modeset locks are locked
78 void drm_warn_on_modeset_not_all_locked(struct drm_device
*dev
)
80 struct drm_crtc
*crtc
;
82 /* Locking is currently fubar in the panic handler. */
86 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
)
87 WARN_ON(!mutex_is_locked(&crtc
->mutex
));
89 WARN_ON(!mutex_is_locked(&dev
->mode_config
.mutex
));
91 EXPORT_SYMBOL(drm_warn_on_modeset_not_all_locked
);
93 /* Avoid boilerplate. I'm tired of typing. */
94 #define DRM_ENUM_NAME_FN(fnname, list) \
95 const char *fnname(int val) \
98 for (i = 0; i < ARRAY_SIZE(list); i++) { \
99 if (list[i].type == val) \
100 return list[i].name; \
102 return "(unknown)"; \
108 static const struct drm_prop_enum_list drm_dpms_enum_list
[] =
109 { { DRM_MODE_DPMS_ON
, "On" },
110 { DRM_MODE_DPMS_STANDBY
, "Standby" },
111 { DRM_MODE_DPMS_SUSPEND
, "Suspend" },
112 { DRM_MODE_DPMS_OFF
, "Off" }
115 DRM_ENUM_NAME_FN(drm_get_dpms_name
, drm_dpms_enum_list
)
118 * Optional properties
120 static const struct drm_prop_enum_list drm_scaling_mode_enum_list
[] =
122 { DRM_MODE_SCALE_NONE
, "None" },
123 { DRM_MODE_SCALE_FULLSCREEN
, "Full" },
124 { DRM_MODE_SCALE_CENTER
, "Center" },
125 { DRM_MODE_SCALE_ASPECT
, "Full aspect" },
128 static const struct drm_prop_enum_list drm_dithering_mode_enum_list
[] =
130 { DRM_MODE_DITHERING_OFF
, "Off" },
131 { DRM_MODE_DITHERING_ON
, "On" },
132 { DRM_MODE_DITHERING_AUTO
, "Automatic" },
136 * Non-global properties, but "required" for certain connectors.
138 static const struct drm_prop_enum_list drm_dvi_i_select_enum_list
[] =
140 { DRM_MODE_SUBCONNECTOR_Automatic
, "Automatic" }, /* DVI-I and TV-out */
141 { DRM_MODE_SUBCONNECTOR_DVID
, "DVI-D" }, /* DVI-I */
142 { DRM_MODE_SUBCONNECTOR_DVIA
, "DVI-A" }, /* DVI-I */
145 DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name
, drm_dvi_i_select_enum_list
)
147 static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list
[] =
149 { DRM_MODE_SUBCONNECTOR_Unknown
, "Unknown" }, /* DVI-I and TV-out */
150 { DRM_MODE_SUBCONNECTOR_DVID
, "DVI-D" }, /* DVI-I */
151 { DRM_MODE_SUBCONNECTOR_DVIA
, "DVI-A" }, /* DVI-I */
154 DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name
,
155 drm_dvi_i_subconnector_enum_list
)
157 static const struct drm_prop_enum_list drm_tv_select_enum_list
[] =
159 { DRM_MODE_SUBCONNECTOR_Automatic
, "Automatic" }, /* DVI-I and TV-out */
160 { DRM_MODE_SUBCONNECTOR_Composite
, "Composite" }, /* TV-out */
161 { DRM_MODE_SUBCONNECTOR_SVIDEO
, "SVIDEO" }, /* TV-out */
162 { DRM_MODE_SUBCONNECTOR_Component
, "Component" }, /* TV-out */
163 { DRM_MODE_SUBCONNECTOR_SCART
, "SCART" }, /* TV-out */
166 DRM_ENUM_NAME_FN(drm_get_tv_select_name
, drm_tv_select_enum_list
)
168 static const struct drm_prop_enum_list drm_tv_subconnector_enum_list
[] =
170 { DRM_MODE_SUBCONNECTOR_Unknown
, "Unknown" }, /* DVI-I and TV-out */
171 { DRM_MODE_SUBCONNECTOR_Composite
, "Composite" }, /* TV-out */
172 { DRM_MODE_SUBCONNECTOR_SVIDEO
, "SVIDEO" }, /* TV-out */
173 { DRM_MODE_SUBCONNECTOR_Component
, "Component" }, /* TV-out */
174 { DRM_MODE_SUBCONNECTOR_SCART
, "SCART" }, /* TV-out */
177 DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name
,
178 drm_tv_subconnector_enum_list
)
180 static const struct drm_prop_enum_list drm_dirty_info_enum_list
[] = {
181 { DRM_MODE_DIRTY_OFF
, "Off" },
182 { DRM_MODE_DIRTY_ON
, "On" },
183 { DRM_MODE_DIRTY_ANNOTATE
, "Annotate" },
186 struct drm_conn_prop_enum_list
{
193 * Connector and encoder types.
195 static struct drm_conn_prop_enum_list drm_connector_enum_list
[] =
196 { { DRM_MODE_CONNECTOR_Unknown
, "Unknown", 0 },
197 { DRM_MODE_CONNECTOR_VGA
, "VGA", 0 },
198 { DRM_MODE_CONNECTOR_DVII
, "DVI-I", 0 },
199 { DRM_MODE_CONNECTOR_DVID
, "DVI-D", 0 },
200 { DRM_MODE_CONNECTOR_DVIA
, "DVI-A", 0 },
201 { DRM_MODE_CONNECTOR_Composite
, "Composite", 0 },
202 { DRM_MODE_CONNECTOR_SVIDEO
, "SVIDEO", 0 },
203 { DRM_MODE_CONNECTOR_LVDS
, "LVDS", 0 },
204 { DRM_MODE_CONNECTOR_Component
, "Component", 0 },
205 { DRM_MODE_CONNECTOR_9PinDIN
, "DIN", 0 },
206 { DRM_MODE_CONNECTOR_DisplayPort
, "DP", 0 },
207 { DRM_MODE_CONNECTOR_HDMIA
, "HDMI-A", 0 },
208 { DRM_MODE_CONNECTOR_HDMIB
, "HDMI-B", 0 },
209 { DRM_MODE_CONNECTOR_TV
, "TV", 0 },
210 { DRM_MODE_CONNECTOR_eDP
, "eDP", 0 },
211 { DRM_MODE_CONNECTOR_VIRTUAL
, "Virtual", 0},
214 static const struct drm_prop_enum_list drm_encoder_enum_list
[] =
215 { { DRM_MODE_ENCODER_NONE
, "None" },
216 { DRM_MODE_ENCODER_DAC
, "DAC" },
217 { DRM_MODE_ENCODER_TMDS
, "TMDS" },
218 { DRM_MODE_ENCODER_LVDS
, "LVDS" },
219 { DRM_MODE_ENCODER_TVDAC
, "TV" },
220 { DRM_MODE_ENCODER_VIRTUAL
, "Virtual" },
223 const char *drm_get_encoder_name(const struct drm_encoder
*encoder
)
227 snprintf(buf
, 32, "%s-%d",
228 drm_encoder_enum_list
[encoder
->encoder_type
].name
,
232 EXPORT_SYMBOL(drm_get_encoder_name
);
234 const char *drm_get_connector_name(const struct drm_connector
*connector
)
238 snprintf(buf
, 32, "%s-%d",
239 drm_connector_enum_list
[connector
->connector_type
].name
,
240 connector
->connector_type_id
);
243 EXPORT_SYMBOL(drm_get_connector_name
);
245 const char *drm_get_connector_status_name(enum drm_connector_status status
)
247 if (status
== connector_status_connected
)
249 else if (status
== connector_status_disconnected
)
250 return "disconnected";
254 EXPORT_SYMBOL(drm_get_connector_status_name
);
256 static char printable_char(int c
)
258 return isascii(c
) && isprint(c
) ? c
: '?';
261 const char *drm_get_format_name(uint32_t format
)
265 snprintf(buf
, sizeof(buf
),
266 "%c%c%c%c %s-endian (0x%08x)",
267 printable_char(format
& 0xff),
268 printable_char((format
>> 8) & 0xff),
269 printable_char((format
>> 16) & 0xff),
270 printable_char((format
>> 24) & 0x7f),
271 format
& DRM_FORMAT_BIG_ENDIAN
? "big" : "little",
276 EXPORT_SYMBOL(drm_get_format_name
);
279 * drm_mode_object_get - allocate a new modeset identifier
281 * @obj: object pointer, used to generate unique ID
282 * @obj_type: object type
284 * Create a unique identifier based on @ptr in @dev's identifier space. Used
285 * for tracking modes, CRTCs and connectors.
288 * New unique (relative to other objects in @dev) integer identifier for the
291 static int drm_mode_object_get(struct drm_device
*dev
,
292 struct drm_mode_object
*obj
, uint32_t obj_type
)
296 mutex_lock(&dev
->mode_config
.idr_mutex
);
297 ret
= idr_alloc(&dev
->mode_config
.crtc_idr
, obj
, 1, 0, GFP_KERNEL
);
300 * Set up the object linking under the protection of the idr
301 * lock so that other users can't see inconsistent state.
304 obj
->type
= obj_type
;
306 mutex_unlock(&dev
->mode_config
.idr_mutex
);
308 return ret
< 0 ? ret
: 0;
312 * drm_mode_object_put - free a modeset identifer
314 * @object: object to free
316 * Free @id from @dev's unique identifier pool.
318 static void drm_mode_object_put(struct drm_device
*dev
,
319 struct drm_mode_object
*object
)
321 mutex_lock(&dev
->mode_config
.idr_mutex
);
322 idr_remove(&dev
->mode_config
.crtc_idr
, object
->id
);
323 mutex_unlock(&dev
->mode_config
.idr_mutex
);
327 * drm_mode_object_find - look up a drm object with static lifetime
329 * @id: id of the mode object
330 * @type: type of the mode object
332 * Note that framebuffers cannot be looked up with this functions - since those
333 * are reference counted, they need special treatment.
335 struct drm_mode_object
*drm_mode_object_find(struct drm_device
*dev
,
336 uint32_t id
, uint32_t type
)
338 struct drm_mode_object
*obj
= NULL
;
340 /* Framebuffers are reference counted and need their own lookup
342 WARN_ON(type
== DRM_MODE_OBJECT_FB
);
344 mutex_lock(&dev
->mode_config
.idr_mutex
);
345 obj
= idr_find(&dev
->mode_config
.crtc_idr
, id
);
346 if (!obj
|| (obj
->type
!= type
) || (obj
->id
!= id
))
348 mutex_unlock(&dev
->mode_config
.idr_mutex
);
352 EXPORT_SYMBOL(drm_mode_object_find
);
355 * drm_framebuffer_init - initialize a framebuffer
357 * @fb: framebuffer to be initialized
358 * @funcs: ... with these functions
360 * Allocates an ID for the framebuffer's parent mode object, sets its mode
361 * functions & device file and adds it to the master fd list.
364 * This functions publishes the fb and makes it available for concurrent access
365 * by other users. Which means by this point the fb _must_ be fully set up -
366 * since all the fb attributes are invariant over its lifetime, no further
367 * locking but only correct reference counting is required.
370 * Zero on success, error code on failure.
372 int drm_framebuffer_init(struct drm_device
*dev
, struct drm_framebuffer
*fb
,
373 const struct drm_framebuffer_funcs
*funcs
)
377 mutex_lock(&dev
->mode_config
.fb_lock
);
378 kref_init(&fb
->refcount
);
379 INIT_LIST_HEAD(&fb
->filp_head
);
383 ret
= drm_mode_object_get(dev
, &fb
->base
, DRM_MODE_OBJECT_FB
);
387 /* Grab the idr reference. */
388 drm_framebuffer_reference(fb
);
390 dev
->mode_config
.num_fb
++;
391 list_add(&fb
->head
, &dev
->mode_config
.fb_list
);
393 mutex_unlock(&dev
->mode_config
.fb_lock
);
397 EXPORT_SYMBOL(drm_framebuffer_init
);
399 static void drm_framebuffer_free(struct kref
*kref
)
401 struct drm_framebuffer
*fb
=
402 container_of(kref
, struct drm_framebuffer
, refcount
);
403 fb
->funcs
->destroy(fb
);
406 static struct drm_framebuffer
*__drm_framebuffer_lookup(struct drm_device
*dev
,
409 struct drm_mode_object
*obj
= NULL
;
410 struct drm_framebuffer
*fb
;
412 mutex_lock(&dev
->mode_config
.idr_mutex
);
413 obj
= idr_find(&dev
->mode_config
.crtc_idr
, id
);
414 if (!obj
|| (obj
->type
!= DRM_MODE_OBJECT_FB
) || (obj
->id
!= id
))
418 mutex_unlock(&dev
->mode_config
.idr_mutex
);
424 * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference
426 * @id: id of the fb object
428 * If successful, this grabs an additional reference to the framebuffer -
429 * callers need to make sure to eventually unreference the returned framebuffer
432 struct drm_framebuffer
*drm_framebuffer_lookup(struct drm_device
*dev
,
435 struct drm_framebuffer
*fb
;
437 mutex_lock(&dev
->mode_config
.fb_lock
);
438 fb
= __drm_framebuffer_lookup(dev
, id
);
440 drm_framebuffer_reference(fb
);
441 mutex_unlock(&dev
->mode_config
.fb_lock
);
445 EXPORT_SYMBOL(drm_framebuffer_lookup
);
448 * drm_framebuffer_unreference - unref a framebuffer
449 * @fb: framebuffer to unref
451 * This functions decrements the fb's refcount and frees it if it drops to zero.
453 void drm_framebuffer_unreference(struct drm_framebuffer
*fb
)
455 DRM_DEBUG("FB ID: %d\n", fb
->base
.id
);
456 kref_put(&fb
->refcount
, drm_framebuffer_free
);
458 EXPORT_SYMBOL(drm_framebuffer_unreference
);
461 * drm_framebuffer_reference - incr the fb refcnt
464 void drm_framebuffer_reference(struct drm_framebuffer
*fb
)
466 DRM_DEBUG("FB ID: %d\n", fb
->base
.id
);
467 kref_get(&fb
->refcount
);
469 EXPORT_SYMBOL(drm_framebuffer_reference
);
471 static void drm_framebuffer_free_bug(struct kref
*kref
)
476 static void __drm_framebuffer_unreference(struct drm_framebuffer
*fb
)
478 DRM_DEBUG("FB ID: %d\n", fb
->base
.id
);
479 kref_put(&fb
->refcount
, drm_framebuffer_free_bug
);
482 /* dev->mode_config.fb_lock must be held! */
483 static void __drm_framebuffer_unregister(struct drm_device
*dev
,
484 struct drm_framebuffer
*fb
)
486 mutex_lock(&dev
->mode_config
.idr_mutex
);
487 idr_remove(&dev
->mode_config
.crtc_idr
, fb
->base
.id
);
488 mutex_unlock(&dev
->mode_config
.idr_mutex
);
492 __drm_framebuffer_unreference(fb
);
496 * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr
497 * @fb: fb to unregister
499 * Drivers need to call this when cleaning up driver-private framebuffers, e.g.
500 * those used for fbdev. Note that the caller must hold a reference of it's own,
501 * i.e. the object may not be destroyed through this call (since it'll lead to a
502 * locking inversion).
504 void drm_framebuffer_unregister_private(struct drm_framebuffer
*fb
)
506 struct drm_device
*dev
= fb
->dev
;
508 mutex_lock(&dev
->mode_config
.fb_lock
);
509 /* Mark fb as reaped and drop idr ref. */
510 __drm_framebuffer_unregister(dev
, fb
);
511 mutex_unlock(&dev
->mode_config
.fb_lock
);
513 EXPORT_SYMBOL(drm_framebuffer_unregister_private
);
516 * drm_framebuffer_cleanup - remove a framebuffer object
517 * @fb: framebuffer to remove
519 * Cleanup references to a user-created framebuffer. This function is intended
520 * to be used from the drivers ->destroy callback.
522 * Note that this function does not remove the fb from active usuage - if it is
523 * still used anywhere, hilarity can ensue since userspace could call getfb on
524 * the id and get back -EINVAL. Obviously no concern at driver unload time.
526 * Also, the framebuffer will not be removed from the lookup idr - for
527 * user-created framebuffers this will happen in in the rmfb ioctl. For
528 * driver-private objects (e.g. for fbdev) drivers need to explicitly call
529 * drm_framebuffer_unregister_private.
531 void drm_framebuffer_cleanup(struct drm_framebuffer
*fb
)
533 struct drm_device
*dev
= fb
->dev
;
535 mutex_lock(&dev
->mode_config
.fb_lock
);
537 dev
->mode_config
.num_fb
--;
538 mutex_unlock(&dev
->mode_config
.fb_lock
);
540 EXPORT_SYMBOL(drm_framebuffer_cleanup
);
543 * drm_framebuffer_remove - remove and unreference a framebuffer object
544 * @fb: framebuffer to remove
546 * Scans all the CRTCs and planes in @dev's mode_config. If they're
547 * using @fb, removes it, setting it to NULL. Then drops the reference to the
548 * passed-in framebuffer. Might take the modeset locks.
550 * Note that this function optimizes the cleanup away if the caller holds the
551 * last reference to the framebuffer. It is also guaranteed to not take the
552 * modeset locks in this case.
554 void drm_framebuffer_remove(struct drm_framebuffer
*fb
)
556 struct drm_device
*dev
= fb
->dev
;
557 struct drm_crtc
*crtc
;
558 struct drm_plane
*plane
;
559 struct drm_mode_set set
;
562 WARN_ON(!list_empty(&fb
->filp_head
));
565 * drm ABI mandates that we remove any deleted framebuffers from active
566 * useage. But since most sane clients only remove framebuffers they no
567 * longer need, try to optimize this away.
569 * Since we're holding a reference ourselves, observing a refcount of 1
570 * means that we're the last holder and can skip it. Also, the refcount
571 * can never increase from 1 again, so we don't need any barriers or
574 * Note that userspace could try to race with use and instate a new
575 * usage _after_ we've cleared all current ones. End result will be an
576 * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot
579 if (atomic_read(&fb
->refcount
.refcount
) > 1) {
580 drm_modeset_lock_all(dev
);
581 /* remove from any CRTC */
582 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
) {
583 if (crtc
->fb
== fb
) {
584 /* should turn off the crtc */
585 memset(&set
, 0, sizeof(struct drm_mode_set
));
588 ret
= drm_mode_set_config_internal(&set
);
590 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc
);
594 list_for_each_entry(plane
, &dev
->mode_config
.plane_list
, head
) {
595 if (plane
->fb
== fb
) {
596 /* should turn off the crtc */
597 ret
= plane
->funcs
->disable_plane(plane
);
599 DRM_ERROR("failed to disable plane with busy fb\n");
600 /* disconnect the plane from the fb and crtc: */
601 __drm_framebuffer_unreference(plane
->fb
);
606 drm_modeset_unlock_all(dev
);
609 drm_framebuffer_unreference(fb
);
611 EXPORT_SYMBOL(drm_framebuffer_remove
);
614 * drm_crtc_init - Initialise a new CRTC object
616 * @crtc: CRTC object to init
617 * @funcs: callbacks for the new CRTC
619 * Inits a new object created as base part of an driver crtc object.
622 * Zero on success, error code on failure.
624 int drm_crtc_init(struct drm_device
*dev
, struct drm_crtc
*crtc
,
625 const struct drm_crtc_funcs
*funcs
)
631 crtc
->invert_dimensions
= false;
633 drm_modeset_lock_all(dev
);
634 mutex_init(&crtc
->mutex
);
635 mutex_lock_nest_lock(&crtc
->mutex
, &dev
->mode_config
.mutex
);
637 ret
= drm_mode_object_get(dev
, &crtc
->base
, DRM_MODE_OBJECT_CRTC
);
641 crtc
->base
.properties
= &crtc
->properties
;
643 list_add_tail(&crtc
->head
, &dev
->mode_config
.crtc_list
);
644 dev
->mode_config
.num_crtc
++;
647 drm_modeset_unlock_all(dev
);
651 EXPORT_SYMBOL(drm_crtc_init
);
654 * drm_crtc_cleanup - Cleans up the core crtc usage.
655 * @crtc: CRTC to cleanup
657 * Cleanup @crtc. Removes from drm modesetting space
658 * does NOT free object, caller does that.
660 void drm_crtc_cleanup(struct drm_crtc
*crtc
)
662 struct drm_device
*dev
= crtc
->dev
;
664 kfree(crtc
->gamma_store
);
665 crtc
->gamma_store
= NULL
;
667 drm_mode_object_put(dev
, &crtc
->base
);
668 list_del(&crtc
->head
);
669 dev
->mode_config
.num_crtc
--;
671 EXPORT_SYMBOL(drm_crtc_cleanup
);
674 * drm_mode_probed_add - add a mode to a connector's probed mode list
675 * @connector: connector the new mode
678 * Add @mode to @connector's mode list for later use.
680 void drm_mode_probed_add(struct drm_connector
*connector
,
681 struct drm_display_mode
*mode
)
683 list_add_tail(&mode
->head
, &connector
->probed_modes
);
685 EXPORT_SYMBOL(drm_mode_probed_add
);
688 * drm_mode_remove - remove and free a mode
689 * @connector: connector list to modify
690 * @mode: mode to remove
692 * Remove @mode from @connector's mode list, then free it.
694 void drm_mode_remove(struct drm_connector
*connector
,
695 struct drm_display_mode
*mode
)
697 list_del(&mode
->head
);
698 drm_mode_destroy(connector
->dev
, mode
);
700 EXPORT_SYMBOL(drm_mode_remove
);
703 * drm_connector_init - Init a preallocated connector
705 * @connector: the connector to init
706 * @funcs: callbacks for this connector
707 * @connector_type: user visible type of the connector
709 * Initialises a preallocated connector. Connectors should be
710 * subclassed as part of driver connector objects.
713 * Zero on success, error code on failure.
715 int drm_connector_init(struct drm_device
*dev
,
716 struct drm_connector
*connector
,
717 const struct drm_connector_funcs
*funcs
,
722 drm_modeset_lock_all(dev
);
724 ret
= drm_mode_object_get(dev
, &connector
->base
, DRM_MODE_OBJECT_CONNECTOR
);
728 connector
->base
.properties
= &connector
->properties
;
729 connector
->dev
= dev
;
730 connector
->funcs
= funcs
;
731 connector
->connector_type
= connector_type
;
732 connector
->connector_type_id
=
733 ++drm_connector_enum_list
[connector_type
].count
; /* TODO */
734 INIT_LIST_HEAD(&connector
->probed_modes
);
735 INIT_LIST_HEAD(&connector
->modes
);
736 connector
->edid_blob_ptr
= NULL
;
737 connector
->status
= connector_status_unknown
;
739 list_add_tail(&connector
->head
, &dev
->mode_config
.connector_list
);
740 dev
->mode_config
.num_connector
++;
742 if (connector_type
!= DRM_MODE_CONNECTOR_VIRTUAL
)
743 drm_object_attach_property(&connector
->base
,
744 dev
->mode_config
.edid_property
,
747 drm_object_attach_property(&connector
->base
,
748 dev
->mode_config
.dpms_property
, 0);
751 drm_modeset_unlock_all(dev
);
755 EXPORT_SYMBOL(drm_connector_init
);
758 * drm_connector_cleanup - cleans up an initialised connector
759 * @connector: connector to cleanup
761 * Cleans up the connector but doesn't free the object.
763 void drm_connector_cleanup(struct drm_connector
*connector
)
765 struct drm_device
*dev
= connector
->dev
;
766 struct drm_display_mode
*mode
, *t
;
768 list_for_each_entry_safe(mode
, t
, &connector
->probed_modes
, head
)
769 drm_mode_remove(connector
, mode
);
771 list_for_each_entry_safe(mode
, t
, &connector
->modes
, head
)
772 drm_mode_remove(connector
, mode
);
774 drm_mode_object_put(dev
, &connector
->base
);
775 list_del(&connector
->head
);
776 dev
->mode_config
.num_connector
--;
778 EXPORT_SYMBOL(drm_connector_cleanup
);
780 void drm_connector_unplug_all(struct drm_device
*dev
)
782 struct drm_connector
*connector
;
784 /* taking the mode config mutex ends up in a clash with sysfs */
785 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
)
786 drm_sysfs_connector_remove(connector
);
789 EXPORT_SYMBOL(drm_connector_unplug_all
);
791 int drm_encoder_init(struct drm_device
*dev
,
792 struct drm_encoder
*encoder
,
793 const struct drm_encoder_funcs
*funcs
,
798 drm_modeset_lock_all(dev
);
800 ret
= drm_mode_object_get(dev
, &encoder
->base
, DRM_MODE_OBJECT_ENCODER
);
805 encoder
->encoder_type
= encoder_type
;
806 encoder
->funcs
= funcs
;
808 list_add_tail(&encoder
->head
, &dev
->mode_config
.encoder_list
);
809 dev
->mode_config
.num_encoder
++;
812 drm_modeset_unlock_all(dev
);
816 EXPORT_SYMBOL(drm_encoder_init
);
818 void drm_encoder_cleanup(struct drm_encoder
*encoder
)
820 struct drm_device
*dev
= encoder
->dev
;
821 drm_modeset_lock_all(dev
);
822 drm_mode_object_put(dev
, &encoder
->base
);
823 list_del(&encoder
->head
);
824 dev
->mode_config
.num_encoder
--;
825 drm_modeset_unlock_all(dev
);
827 EXPORT_SYMBOL(drm_encoder_cleanup
);
829 int drm_plane_init(struct drm_device
*dev
, struct drm_plane
*plane
,
830 unsigned long possible_crtcs
,
831 const struct drm_plane_funcs
*funcs
,
832 const uint32_t *formats
, uint32_t format_count
,
837 drm_modeset_lock_all(dev
);
839 ret
= drm_mode_object_get(dev
, &plane
->base
, DRM_MODE_OBJECT_PLANE
);
843 plane
->base
.properties
= &plane
->properties
;
845 plane
->funcs
= funcs
;
846 plane
->format_types
= kmalloc(sizeof(uint32_t) * format_count
,
848 if (!plane
->format_types
) {
849 DRM_DEBUG_KMS("out of memory when allocating plane\n");
850 drm_mode_object_put(dev
, &plane
->base
);
855 memcpy(plane
->format_types
, formats
, format_count
* sizeof(uint32_t));
856 plane
->format_count
= format_count
;
857 plane
->possible_crtcs
= possible_crtcs
;
859 /* private planes are not exposed to userspace, but depending on
860 * display hardware, might be convenient to allow sharing programming
861 * for the scanout engine with the crtc implementation.
864 list_add_tail(&plane
->head
, &dev
->mode_config
.plane_list
);
865 dev
->mode_config
.num_plane
++;
867 INIT_LIST_HEAD(&plane
->head
);
871 drm_modeset_unlock_all(dev
);
875 EXPORT_SYMBOL(drm_plane_init
);
877 void drm_plane_cleanup(struct drm_plane
*plane
)
879 struct drm_device
*dev
= plane
->dev
;
881 drm_modeset_lock_all(dev
);
882 kfree(plane
->format_types
);
883 drm_mode_object_put(dev
, &plane
->base
);
884 /* if not added to a list, it must be a private plane */
885 if (!list_empty(&plane
->head
)) {
886 list_del(&plane
->head
);
887 dev
->mode_config
.num_plane
--;
889 drm_modeset_unlock_all(dev
);
891 EXPORT_SYMBOL(drm_plane_cleanup
);
894 * drm_mode_create - create a new display mode
897 * Create a new drm_display_mode, give it an ID, and return it.
900 * Pointer to new mode on success, NULL on error.
902 struct drm_display_mode
*drm_mode_create(struct drm_device
*dev
)
904 struct drm_display_mode
*nmode
;
906 nmode
= kzalloc(sizeof(struct drm_display_mode
), GFP_KERNEL
);
910 if (drm_mode_object_get(dev
, &nmode
->base
, DRM_MODE_OBJECT_MODE
)) {
917 EXPORT_SYMBOL(drm_mode_create
);
920 * drm_mode_destroy - remove a mode
922 * @mode: mode to remove
924 * Free @mode's unique identifier, then free it.
926 void drm_mode_destroy(struct drm_device
*dev
, struct drm_display_mode
*mode
)
931 drm_mode_object_put(dev
, &mode
->base
);
935 EXPORT_SYMBOL(drm_mode_destroy
);
937 static int drm_mode_create_standard_connector_properties(struct drm_device
*dev
)
939 struct drm_property
*edid
;
940 struct drm_property
*dpms
;
943 * Standard properties (apply to all connectors)
945 edid
= drm_property_create(dev
, DRM_MODE_PROP_BLOB
|
946 DRM_MODE_PROP_IMMUTABLE
,
948 dev
->mode_config
.edid_property
= edid
;
950 dpms
= drm_property_create_enum(dev
, 0,
951 "DPMS", drm_dpms_enum_list
,
952 ARRAY_SIZE(drm_dpms_enum_list
));
953 dev
->mode_config
.dpms_property
= dpms
;
959 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
962 * Called by a driver the first time a DVI-I connector is made.
964 int drm_mode_create_dvi_i_properties(struct drm_device
*dev
)
966 struct drm_property
*dvi_i_selector
;
967 struct drm_property
*dvi_i_subconnector
;
969 if (dev
->mode_config
.dvi_i_select_subconnector_property
)
973 drm_property_create_enum(dev
, 0,
974 "select subconnector",
975 drm_dvi_i_select_enum_list
,
976 ARRAY_SIZE(drm_dvi_i_select_enum_list
));
977 dev
->mode_config
.dvi_i_select_subconnector_property
= dvi_i_selector
;
979 dvi_i_subconnector
= drm_property_create_enum(dev
, DRM_MODE_PROP_IMMUTABLE
,
981 drm_dvi_i_subconnector_enum_list
,
982 ARRAY_SIZE(drm_dvi_i_subconnector_enum_list
));
983 dev
->mode_config
.dvi_i_subconnector_property
= dvi_i_subconnector
;
987 EXPORT_SYMBOL(drm_mode_create_dvi_i_properties
);
990 * drm_create_tv_properties - create TV specific connector properties
992 * @num_modes: number of different TV formats (modes) supported
993 * @modes: array of pointers to strings containing name of each format
995 * Called by a driver's TV initialization routine, this function creates
996 * the TV specific connector properties for a given device. Caller is
997 * responsible for allocating a list of format names and passing them to
1000 int drm_mode_create_tv_properties(struct drm_device
*dev
, int num_modes
,
1003 struct drm_property
*tv_selector
;
1004 struct drm_property
*tv_subconnector
;
1007 if (dev
->mode_config
.tv_select_subconnector_property
)
1011 * Basic connector properties
1013 tv_selector
= drm_property_create_enum(dev
, 0,
1014 "select subconnector",
1015 drm_tv_select_enum_list
,
1016 ARRAY_SIZE(drm_tv_select_enum_list
));
1017 dev
->mode_config
.tv_select_subconnector_property
= tv_selector
;
1020 drm_property_create_enum(dev
, DRM_MODE_PROP_IMMUTABLE
,
1022 drm_tv_subconnector_enum_list
,
1023 ARRAY_SIZE(drm_tv_subconnector_enum_list
));
1024 dev
->mode_config
.tv_subconnector_property
= tv_subconnector
;
1027 * Other, TV specific properties: margins & TV modes.
1029 dev
->mode_config
.tv_left_margin_property
=
1030 drm_property_create_range(dev
, 0, "left margin", 0, 100);
1032 dev
->mode_config
.tv_right_margin_property
=
1033 drm_property_create_range(dev
, 0, "right margin", 0, 100);
1035 dev
->mode_config
.tv_top_margin_property
=
1036 drm_property_create_range(dev
, 0, "top margin", 0, 100);
1038 dev
->mode_config
.tv_bottom_margin_property
=
1039 drm_property_create_range(dev
, 0, "bottom margin", 0, 100);
1041 dev
->mode_config
.tv_mode_property
=
1042 drm_property_create(dev
, DRM_MODE_PROP_ENUM
,
1044 for (i
= 0; i
< num_modes
; i
++)
1045 drm_property_add_enum(dev
->mode_config
.tv_mode_property
, i
,
1048 dev
->mode_config
.tv_brightness_property
=
1049 drm_property_create_range(dev
, 0, "brightness", 0, 100);
1051 dev
->mode_config
.tv_contrast_property
=
1052 drm_property_create_range(dev
, 0, "contrast", 0, 100);
1054 dev
->mode_config
.tv_flicker_reduction_property
=
1055 drm_property_create_range(dev
, 0, "flicker reduction", 0, 100);
1057 dev
->mode_config
.tv_overscan_property
=
1058 drm_property_create_range(dev
, 0, "overscan", 0, 100);
1060 dev
->mode_config
.tv_saturation_property
=
1061 drm_property_create_range(dev
, 0, "saturation", 0, 100);
1063 dev
->mode_config
.tv_hue_property
=
1064 drm_property_create_range(dev
, 0, "hue", 0, 100);
1068 EXPORT_SYMBOL(drm_mode_create_tv_properties
);
1071 * drm_mode_create_scaling_mode_property - create scaling mode property
1074 * Called by a driver the first time it's needed, must be attached to desired
1077 int drm_mode_create_scaling_mode_property(struct drm_device
*dev
)
1079 struct drm_property
*scaling_mode
;
1081 if (dev
->mode_config
.scaling_mode_property
)
1085 drm_property_create_enum(dev
, 0, "scaling mode",
1086 drm_scaling_mode_enum_list
,
1087 ARRAY_SIZE(drm_scaling_mode_enum_list
));
1089 dev
->mode_config
.scaling_mode_property
= scaling_mode
;
1093 EXPORT_SYMBOL(drm_mode_create_scaling_mode_property
);
1096 * drm_mode_create_dithering_property - create dithering property
1099 * Called by a driver the first time it's needed, must be attached to desired
1102 int drm_mode_create_dithering_property(struct drm_device
*dev
)
1104 struct drm_property
*dithering_mode
;
1106 if (dev
->mode_config
.dithering_mode_property
)
1110 drm_property_create_enum(dev
, 0, "dithering",
1111 drm_dithering_mode_enum_list
,
1112 ARRAY_SIZE(drm_dithering_mode_enum_list
));
1113 dev
->mode_config
.dithering_mode_property
= dithering_mode
;
1117 EXPORT_SYMBOL(drm_mode_create_dithering_property
);
1120 * drm_mode_create_dirty_property - create dirty property
1123 * Called by a driver the first time it's needed, must be attached to desired
1126 int drm_mode_create_dirty_info_property(struct drm_device
*dev
)
1128 struct drm_property
*dirty_info
;
1130 if (dev
->mode_config
.dirty_info_property
)
1134 drm_property_create_enum(dev
, DRM_MODE_PROP_IMMUTABLE
,
1136 drm_dirty_info_enum_list
,
1137 ARRAY_SIZE(drm_dirty_info_enum_list
));
1138 dev
->mode_config
.dirty_info_property
= dirty_info
;
1142 EXPORT_SYMBOL(drm_mode_create_dirty_info_property
);
1144 static int drm_mode_group_init(struct drm_device
*dev
, struct drm_mode_group
*group
)
1146 uint32_t total_objects
= 0;
1148 total_objects
+= dev
->mode_config
.num_crtc
;
1149 total_objects
+= dev
->mode_config
.num_connector
;
1150 total_objects
+= dev
->mode_config
.num_encoder
;
1152 group
->id_list
= kzalloc(total_objects
* sizeof(uint32_t), GFP_KERNEL
);
1153 if (!group
->id_list
)
1156 group
->num_crtcs
= 0;
1157 group
->num_connectors
= 0;
1158 group
->num_encoders
= 0;
1162 int drm_mode_group_init_legacy_group(struct drm_device
*dev
,
1163 struct drm_mode_group
*group
)
1165 struct drm_crtc
*crtc
;
1166 struct drm_encoder
*encoder
;
1167 struct drm_connector
*connector
;
1170 if ((ret
= drm_mode_group_init(dev
, group
)))
1173 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
)
1174 group
->id_list
[group
->num_crtcs
++] = crtc
->base
.id
;
1176 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
)
1177 group
->id_list
[group
->num_crtcs
+ group
->num_encoders
++] =
1180 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
)
1181 group
->id_list
[group
->num_crtcs
+ group
->num_encoders
+
1182 group
->num_connectors
++] = connector
->base
.id
;
1186 EXPORT_SYMBOL(drm_mode_group_init_legacy_group
);
1189 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
1190 * @out: drm_mode_modeinfo struct to return to the user
1191 * @in: drm_display_mode to use
1193 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
1196 static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo
*out
,
1197 const struct drm_display_mode
*in
)
1199 WARN(in
->hdisplay
> USHRT_MAX
|| in
->hsync_start
> USHRT_MAX
||
1200 in
->hsync_end
> USHRT_MAX
|| in
->htotal
> USHRT_MAX
||
1201 in
->hskew
> USHRT_MAX
|| in
->vdisplay
> USHRT_MAX
||
1202 in
->vsync_start
> USHRT_MAX
|| in
->vsync_end
> USHRT_MAX
||
1203 in
->vtotal
> USHRT_MAX
|| in
->vscan
> USHRT_MAX
,
1204 "timing values too large for mode info\n");
1206 out
->clock
= in
->clock
;
1207 out
->hdisplay
= in
->hdisplay
;
1208 out
->hsync_start
= in
->hsync_start
;
1209 out
->hsync_end
= in
->hsync_end
;
1210 out
->htotal
= in
->htotal
;
1211 out
->hskew
= in
->hskew
;
1212 out
->vdisplay
= in
->vdisplay
;
1213 out
->vsync_start
= in
->vsync_start
;
1214 out
->vsync_end
= in
->vsync_end
;
1215 out
->vtotal
= in
->vtotal
;
1216 out
->vscan
= in
->vscan
;
1217 out
->vrefresh
= in
->vrefresh
;
1218 out
->flags
= in
->flags
;
1219 out
->type
= in
->type
;
1220 strncpy(out
->name
, in
->name
, DRM_DISPLAY_MODE_LEN
);
1221 out
->name
[DRM_DISPLAY_MODE_LEN
-1] = 0;
1225 * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
1226 * @out: drm_display_mode to return to the user
1227 * @in: drm_mode_modeinfo to use
1229 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
1233 * Zero on success, errno on failure.
1235 static int drm_crtc_convert_umode(struct drm_display_mode
*out
,
1236 const struct drm_mode_modeinfo
*in
)
1238 if (in
->clock
> INT_MAX
|| in
->vrefresh
> INT_MAX
)
1241 out
->clock
= in
->clock
;
1242 out
->hdisplay
= in
->hdisplay
;
1243 out
->hsync_start
= in
->hsync_start
;
1244 out
->hsync_end
= in
->hsync_end
;
1245 out
->htotal
= in
->htotal
;
1246 out
->hskew
= in
->hskew
;
1247 out
->vdisplay
= in
->vdisplay
;
1248 out
->vsync_start
= in
->vsync_start
;
1249 out
->vsync_end
= in
->vsync_end
;
1250 out
->vtotal
= in
->vtotal
;
1251 out
->vscan
= in
->vscan
;
1252 out
->vrefresh
= in
->vrefresh
;
1253 out
->flags
= in
->flags
;
1254 out
->type
= in
->type
;
1255 strncpy(out
->name
, in
->name
, DRM_DISPLAY_MODE_LEN
);
1256 out
->name
[DRM_DISPLAY_MODE_LEN
-1] = 0;
1262 * drm_mode_getresources - get graphics configuration
1263 * @dev: drm device for the ioctl
1264 * @data: data pointer for the ioctl
1265 * @file_priv: drm file for the ioctl call
1267 * Construct a set of configuration description structures and return
1268 * them to the user, including CRTC, connector and framebuffer configuration.
1270 * Called by the user via ioctl.
1273 * Zero on success, errno on failure.
1275 int drm_mode_getresources(struct drm_device
*dev
, void *data
,
1276 struct drm_file
*file_priv
)
1278 struct drm_mode_card_res
*card_res
= data
;
1279 struct list_head
*lh
;
1280 struct drm_framebuffer
*fb
;
1281 struct drm_connector
*connector
;
1282 struct drm_crtc
*crtc
;
1283 struct drm_encoder
*encoder
;
1285 int connector_count
= 0;
1288 int encoder_count
= 0;
1290 uint32_t __user
*fb_id
;
1291 uint32_t __user
*crtc_id
;
1292 uint32_t __user
*connector_id
;
1293 uint32_t __user
*encoder_id
;
1294 struct drm_mode_group
*mode_group
;
1296 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
1300 mutex_lock(&file_priv
->fbs_lock
);
1302 * For the non-control nodes we need to limit the list of resources
1303 * by IDs in the group list for this node
1305 list_for_each(lh
, &file_priv
->fbs
)
1308 /* handle this in 4 parts */
1310 if (card_res
->count_fbs
>= fb_count
) {
1312 fb_id
= (uint32_t __user
*)(unsigned long)card_res
->fb_id_ptr
;
1313 list_for_each_entry(fb
, &file_priv
->fbs
, filp_head
) {
1314 if (put_user(fb
->base
.id
, fb_id
+ copied
)) {
1315 mutex_unlock(&file_priv
->fbs_lock
);
1321 card_res
->count_fbs
= fb_count
;
1322 mutex_unlock(&file_priv
->fbs_lock
);
1324 drm_modeset_lock_all(dev
);
1325 mode_group
= &file_priv
->master
->minor
->mode_group
;
1326 if (file_priv
->master
->minor
->type
== DRM_MINOR_CONTROL
) {
1328 list_for_each(lh
, &dev
->mode_config
.crtc_list
)
1331 list_for_each(lh
, &dev
->mode_config
.connector_list
)
1334 list_for_each(lh
, &dev
->mode_config
.encoder_list
)
1338 crtc_count
= mode_group
->num_crtcs
;
1339 connector_count
= mode_group
->num_connectors
;
1340 encoder_count
= mode_group
->num_encoders
;
1343 card_res
->max_height
= dev
->mode_config
.max_height
;
1344 card_res
->min_height
= dev
->mode_config
.min_height
;
1345 card_res
->max_width
= dev
->mode_config
.max_width
;
1346 card_res
->min_width
= dev
->mode_config
.min_width
;
1349 if (card_res
->count_crtcs
>= crtc_count
) {
1351 crtc_id
= (uint32_t __user
*)(unsigned long)card_res
->crtc_id_ptr
;
1352 if (file_priv
->master
->minor
->type
== DRM_MINOR_CONTROL
) {
1353 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
,
1355 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc
->base
.id
);
1356 if (put_user(crtc
->base
.id
, crtc_id
+ copied
)) {
1363 for (i
= 0; i
< mode_group
->num_crtcs
; i
++) {
1364 if (put_user(mode_group
->id_list
[i
],
1365 crtc_id
+ copied
)) {
1373 card_res
->count_crtcs
= crtc_count
;
1376 if (card_res
->count_encoders
>= encoder_count
) {
1378 encoder_id
= (uint32_t __user
*)(unsigned long)card_res
->encoder_id_ptr
;
1379 if (file_priv
->master
->minor
->type
== DRM_MINOR_CONTROL
) {
1380 list_for_each_entry(encoder
,
1381 &dev
->mode_config
.encoder_list
,
1383 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder
->base
.id
,
1384 drm_get_encoder_name(encoder
));
1385 if (put_user(encoder
->base
.id
, encoder_id
+
1393 for (i
= mode_group
->num_crtcs
; i
< mode_group
->num_crtcs
+ mode_group
->num_encoders
; i
++) {
1394 if (put_user(mode_group
->id_list
[i
],
1395 encoder_id
+ copied
)) {
1404 card_res
->count_encoders
= encoder_count
;
1407 if (card_res
->count_connectors
>= connector_count
) {
1409 connector_id
= (uint32_t __user
*)(unsigned long)card_res
->connector_id_ptr
;
1410 if (file_priv
->master
->minor
->type
== DRM_MINOR_CONTROL
) {
1411 list_for_each_entry(connector
,
1412 &dev
->mode_config
.connector_list
,
1414 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1416 drm_get_connector_name(connector
));
1417 if (put_user(connector
->base
.id
,
1418 connector_id
+ copied
)) {
1425 int start
= mode_group
->num_crtcs
+
1426 mode_group
->num_encoders
;
1427 for (i
= start
; i
< start
+ mode_group
->num_connectors
; i
++) {
1428 if (put_user(mode_group
->id_list
[i
],
1429 connector_id
+ copied
)) {
1437 card_res
->count_connectors
= connector_count
;
1439 DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res
->count_crtcs
,
1440 card_res
->count_connectors
, card_res
->count_encoders
);
1443 drm_modeset_unlock_all(dev
);
1448 * drm_mode_getcrtc - get CRTC configuration
1449 * @dev: drm device for the ioctl
1450 * @data: data pointer for the ioctl
1451 * @file_priv: drm file for the ioctl call
1453 * Construct a CRTC configuration structure to return to the user.
1455 * Called by the user via ioctl.
1458 * Zero on success, errno on failure.
1460 int drm_mode_getcrtc(struct drm_device
*dev
,
1461 void *data
, struct drm_file
*file_priv
)
1463 struct drm_mode_crtc
*crtc_resp
= data
;
1464 struct drm_crtc
*crtc
;
1465 struct drm_mode_object
*obj
;
1468 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
1471 drm_modeset_lock_all(dev
);
1473 obj
= drm_mode_object_find(dev
, crtc_resp
->crtc_id
,
1474 DRM_MODE_OBJECT_CRTC
);
1479 crtc
= obj_to_crtc(obj
);
1481 crtc_resp
->x
= crtc
->x
;
1482 crtc_resp
->y
= crtc
->y
;
1483 crtc_resp
->gamma_size
= crtc
->gamma_size
;
1485 crtc_resp
->fb_id
= crtc
->fb
->base
.id
;
1487 crtc_resp
->fb_id
= 0;
1489 if (crtc
->enabled
) {
1491 drm_crtc_convert_to_umode(&crtc_resp
->mode
, &crtc
->mode
);
1492 crtc_resp
->mode_valid
= 1;
1495 crtc_resp
->mode_valid
= 0;
1499 drm_modeset_unlock_all(dev
);
1504 * drm_mode_getconnector - get connector configuration
1505 * @dev: drm device for the ioctl
1506 * @data: data pointer for the ioctl
1507 * @file_priv: drm file for the ioctl call
1509 * Construct a connector configuration structure to return to the user.
1511 * Called by the user via ioctl.
1514 * Zero on success, errno on failure.
1516 int drm_mode_getconnector(struct drm_device
*dev
, void *data
,
1517 struct drm_file
*file_priv
)
1519 struct drm_mode_get_connector
*out_resp
= data
;
1520 struct drm_mode_object
*obj
;
1521 struct drm_connector
*connector
;
1522 struct drm_display_mode
*mode
;
1524 int props_count
= 0;
1525 int encoders_count
= 0;
1529 struct drm_mode_modeinfo u_mode
;
1530 struct drm_mode_modeinfo __user
*mode_ptr
;
1531 uint32_t __user
*prop_ptr
;
1532 uint64_t __user
*prop_values
;
1533 uint32_t __user
*encoder_ptr
;
1535 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
1538 memset(&u_mode
, 0, sizeof(struct drm_mode_modeinfo
));
1540 DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp
->connector_id
);
1542 mutex_lock(&dev
->mode_config
.mutex
);
1544 obj
= drm_mode_object_find(dev
, out_resp
->connector_id
,
1545 DRM_MODE_OBJECT_CONNECTOR
);
1550 connector
= obj_to_connector(obj
);
1552 props_count
= connector
->properties
.count
;
1554 for (i
= 0; i
< DRM_CONNECTOR_MAX_ENCODER
; i
++) {
1555 if (connector
->encoder_ids
[i
] != 0) {
1560 if (out_resp
->count_modes
== 0) {
1561 connector
->funcs
->fill_modes(connector
,
1562 dev
->mode_config
.max_width
,
1563 dev
->mode_config
.max_height
);
1566 /* delayed so we get modes regardless of pre-fill_modes state */
1567 list_for_each_entry(mode
, &connector
->modes
, head
)
1570 out_resp
->connector_id
= connector
->base
.id
;
1571 out_resp
->connector_type
= connector
->connector_type
;
1572 out_resp
->connector_type_id
= connector
->connector_type_id
;
1573 out_resp
->mm_width
= connector
->display_info
.width_mm
;
1574 out_resp
->mm_height
= connector
->display_info
.height_mm
;
1575 out_resp
->subpixel
= connector
->display_info
.subpixel_order
;
1576 out_resp
->connection
= connector
->status
;
1577 if (connector
->encoder
)
1578 out_resp
->encoder_id
= connector
->encoder
->base
.id
;
1580 out_resp
->encoder_id
= 0;
1583 * This ioctl is called twice, once to determine how much space is
1584 * needed, and the 2nd time to fill it.
1586 if ((out_resp
->count_modes
>= mode_count
) && mode_count
) {
1588 mode_ptr
= (struct drm_mode_modeinfo __user
*)(unsigned long)out_resp
->modes_ptr
;
1589 list_for_each_entry(mode
, &connector
->modes
, head
) {
1590 drm_crtc_convert_to_umode(&u_mode
, mode
);
1591 if (copy_to_user(mode_ptr
+ copied
,
1592 &u_mode
, sizeof(u_mode
))) {
1599 out_resp
->count_modes
= mode_count
;
1601 if ((out_resp
->count_props
>= props_count
) && props_count
) {
1603 prop_ptr
= (uint32_t __user
*)(unsigned long)(out_resp
->props_ptr
);
1604 prop_values
= (uint64_t __user
*)(unsigned long)(out_resp
->prop_values_ptr
);
1605 for (i
= 0; i
< connector
->properties
.count
; i
++) {
1606 if (put_user(connector
->properties
.ids
[i
],
1607 prop_ptr
+ copied
)) {
1612 if (put_user(connector
->properties
.values
[i
],
1613 prop_values
+ copied
)) {
1620 out_resp
->count_props
= props_count
;
1622 if ((out_resp
->count_encoders
>= encoders_count
) && encoders_count
) {
1624 encoder_ptr
= (uint32_t __user
*)(unsigned long)(out_resp
->encoders_ptr
);
1625 for (i
= 0; i
< DRM_CONNECTOR_MAX_ENCODER
; i
++) {
1626 if (connector
->encoder_ids
[i
] != 0) {
1627 if (put_user(connector
->encoder_ids
[i
],
1628 encoder_ptr
+ copied
)) {
1636 out_resp
->count_encoders
= encoders_count
;
1639 mutex_unlock(&dev
->mode_config
.mutex
);
1644 int drm_mode_getencoder(struct drm_device
*dev
, void *data
,
1645 struct drm_file
*file_priv
)
1647 struct drm_mode_get_encoder
*enc_resp
= data
;
1648 struct drm_mode_object
*obj
;
1649 struct drm_encoder
*encoder
;
1652 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
1655 drm_modeset_lock_all(dev
);
1656 obj
= drm_mode_object_find(dev
, enc_resp
->encoder_id
,
1657 DRM_MODE_OBJECT_ENCODER
);
1662 encoder
= obj_to_encoder(obj
);
1665 enc_resp
->crtc_id
= encoder
->crtc
->base
.id
;
1667 enc_resp
->crtc_id
= 0;
1668 enc_resp
->encoder_type
= encoder
->encoder_type
;
1669 enc_resp
->encoder_id
= encoder
->base
.id
;
1670 enc_resp
->possible_crtcs
= encoder
->possible_crtcs
;
1671 enc_resp
->possible_clones
= encoder
->possible_clones
;
1674 drm_modeset_unlock_all(dev
);
1679 * drm_mode_getplane_res - get plane info
1682 * @file_priv: DRM file info
1684 * Return an plane count and set of IDs.
1686 int drm_mode_getplane_res(struct drm_device
*dev
, void *data
,
1687 struct drm_file
*file_priv
)
1689 struct drm_mode_get_plane_res
*plane_resp
= data
;
1690 struct drm_mode_config
*config
;
1691 struct drm_plane
*plane
;
1692 uint32_t __user
*plane_ptr
;
1693 int copied
= 0, ret
= 0;
1695 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
1698 drm_modeset_lock_all(dev
);
1699 config
= &dev
->mode_config
;
1702 * This ioctl is called twice, once to determine how much space is
1703 * needed, and the 2nd time to fill it.
1705 if (config
->num_plane
&&
1706 (plane_resp
->count_planes
>= config
->num_plane
)) {
1707 plane_ptr
= (uint32_t __user
*)(unsigned long)plane_resp
->plane_id_ptr
;
1709 list_for_each_entry(plane
, &config
->plane_list
, head
) {
1710 if (put_user(plane
->base
.id
, plane_ptr
+ copied
)) {
1717 plane_resp
->count_planes
= config
->num_plane
;
1720 drm_modeset_unlock_all(dev
);
1725 * drm_mode_getplane - get plane info
1728 * @file_priv: DRM file info
1730 * Return plane info, including formats supported, gamma size, any
1733 int drm_mode_getplane(struct drm_device
*dev
, void *data
,
1734 struct drm_file
*file_priv
)
1736 struct drm_mode_get_plane
*plane_resp
= data
;
1737 struct drm_mode_object
*obj
;
1738 struct drm_plane
*plane
;
1739 uint32_t __user
*format_ptr
;
1742 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
1745 drm_modeset_lock_all(dev
);
1746 obj
= drm_mode_object_find(dev
, plane_resp
->plane_id
,
1747 DRM_MODE_OBJECT_PLANE
);
1752 plane
= obj_to_plane(obj
);
1755 plane_resp
->crtc_id
= plane
->crtc
->base
.id
;
1757 plane_resp
->crtc_id
= 0;
1760 plane_resp
->fb_id
= plane
->fb
->base
.id
;
1762 plane_resp
->fb_id
= 0;
1764 plane_resp
->plane_id
= plane
->base
.id
;
1765 plane_resp
->possible_crtcs
= plane
->possible_crtcs
;
1766 plane_resp
->gamma_size
= plane
->gamma_size
;
1769 * This ioctl is called twice, once to determine how much space is
1770 * needed, and the 2nd time to fill it.
1772 if (plane
->format_count
&&
1773 (plane_resp
->count_format_types
>= plane
->format_count
)) {
1774 format_ptr
= (uint32_t __user
*)(unsigned long)plane_resp
->format_type_ptr
;
1775 if (copy_to_user(format_ptr
,
1776 plane
->format_types
,
1777 sizeof(uint32_t) * plane
->format_count
)) {
1782 plane_resp
->count_format_types
= plane
->format_count
;
1785 drm_modeset_unlock_all(dev
);
1790 * drm_mode_setplane - set up or tear down an plane
1792 * @data: ioctl data*
1793 * @file_priv: DRM file info
1795 * Set plane info, including placement, fb, scaling, and other factors.
1796 * Or pass a NULL fb to disable.
1798 int drm_mode_setplane(struct drm_device
*dev
, void *data
,
1799 struct drm_file
*file_priv
)
1801 struct drm_mode_set_plane
*plane_req
= data
;
1802 struct drm_mode_object
*obj
;
1803 struct drm_plane
*plane
;
1804 struct drm_crtc
*crtc
;
1805 struct drm_framebuffer
*fb
= NULL
, *old_fb
= NULL
;
1807 unsigned int fb_width
, fb_height
;
1810 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
1814 * First, find the plane, crtc, and fb objects. If not available,
1815 * we don't bother to call the driver.
1817 obj
= drm_mode_object_find(dev
, plane_req
->plane_id
,
1818 DRM_MODE_OBJECT_PLANE
);
1820 DRM_DEBUG_KMS("Unknown plane ID %d\n",
1821 plane_req
->plane_id
);
1824 plane
= obj_to_plane(obj
);
1826 /* No fb means shut it down */
1827 if (!plane_req
->fb_id
) {
1828 drm_modeset_lock_all(dev
);
1830 plane
->funcs
->disable_plane(plane
);
1833 drm_modeset_unlock_all(dev
);
1837 obj
= drm_mode_object_find(dev
, plane_req
->crtc_id
,
1838 DRM_MODE_OBJECT_CRTC
);
1840 DRM_DEBUG_KMS("Unknown crtc ID %d\n",
1841 plane_req
->crtc_id
);
1845 crtc
= obj_to_crtc(obj
);
1847 fb
= drm_framebuffer_lookup(dev
, plane_req
->fb_id
);
1849 DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
1855 /* Check whether this plane supports the fb pixel format. */
1856 for (i
= 0; i
< plane
->format_count
; i
++)
1857 if (fb
->pixel_format
== plane
->format_types
[i
])
1859 if (i
== plane
->format_count
) {
1860 DRM_DEBUG_KMS("Invalid pixel format %s\n",
1861 drm_get_format_name(fb
->pixel_format
));
1866 fb_width
= fb
->width
<< 16;
1867 fb_height
= fb
->height
<< 16;
1869 /* Make sure source coordinates are inside the fb. */
1870 if (plane_req
->src_w
> fb_width
||
1871 plane_req
->src_x
> fb_width
- plane_req
->src_w
||
1872 plane_req
->src_h
> fb_height
||
1873 plane_req
->src_y
> fb_height
- plane_req
->src_h
) {
1874 DRM_DEBUG_KMS("Invalid source coordinates "
1875 "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
1876 plane_req
->src_w
>> 16,
1877 ((plane_req
->src_w
& 0xffff) * 15625) >> 10,
1878 plane_req
->src_h
>> 16,
1879 ((plane_req
->src_h
& 0xffff) * 15625) >> 10,
1880 plane_req
->src_x
>> 16,
1881 ((plane_req
->src_x
& 0xffff) * 15625) >> 10,
1882 plane_req
->src_y
>> 16,
1883 ((plane_req
->src_y
& 0xffff) * 15625) >> 10);
1888 /* Give drivers some help against integer overflows */
1889 if (plane_req
->crtc_w
> INT_MAX
||
1890 plane_req
->crtc_x
> INT_MAX
- (int32_t) plane_req
->crtc_w
||
1891 plane_req
->crtc_h
> INT_MAX
||
1892 plane_req
->crtc_y
> INT_MAX
- (int32_t) plane_req
->crtc_h
) {
1893 DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
1894 plane_req
->crtc_w
, plane_req
->crtc_h
,
1895 plane_req
->crtc_x
, plane_req
->crtc_y
);
1900 drm_modeset_lock_all(dev
);
1901 ret
= plane
->funcs
->update_plane(plane
, crtc
, fb
,
1902 plane_req
->crtc_x
, plane_req
->crtc_y
,
1903 plane_req
->crtc_w
, plane_req
->crtc_h
,
1904 plane_req
->src_x
, plane_req
->src_y
,
1905 plane_req
->src_w
, plane_req
->src_h
);
1912 drm_modeset_unlock_all(dev
);
1916 drm_framebuffer_unreference(fb
);
1918 drm_framebuffer_unreference(old_fb
);
1924 * drm_mode_set_config_internal - helper to call ->set_config
1925 * @set: modeset config to set
1927 * This is a little helper to wrap internal calls to the ->set_config driver
1928 * interface. The only thing it adds is correct refcounting dance.
1930 int drm_mode_set_config_internal(struct drm_mode_set
*set
)
1932 struct drm_crtc
*crtc
= set
->crtc
;
1933 struct drm_framebuffer
*fb
, *old_fb
;
1939 ret
= crtc
->funcs
->set_config(set
);
1942 drm_framebuffer_unreference(old_fb
);
1944 drm_framebuffer_reference(fb
);
1949 EXPORT_SYMBOL(drm_mode_set_config_internal
);
1952 * drm_mode_setcrtc - set CRTC configuration
1953 * @dev: drm device for the ioctl
1954 * @data: data pointer for the ioctl
1955 * @file_priv: drm file for the ioctl call
1957 * Build a new CRTC configuration based on user request.
1959 * Called by the user via ioctl.
1962 * Zero on success, errno on failure.
1964 int drm_mode_setcrtc(struct drm_device
*dev
, void *data
,
1965 struct drm_file
*file_priv
)
1967 struct drm_mode_config
*config
= &dev
->mode_config
;
1968 struct drm_mode_crtc
*crtc_req
= data
;
1969 struct drm_mode_object
*obj
;
1970 struct drm_crtc
*crtc
;
1971 struct drm_connector
**connector_set
= NULL
, *connector
;
1972 struct drm_framebuffer
*fb
= NULL
;
1973 struct drm_display_mode
*mode
= NULL
;
1974 struct drm_mode_set set
;
1975 uint32_t __user
*set_connectors_ptr
;
1979 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
1982 /* For some reason crtc x/y offsets are signed internally. */
1983 if (crtc_req
->x
> INT_MAX
|| crtc_req
->y
> INT_MAX
)
1986 drm_modeset_lock_all(dev
);
1987 obj
= drm_mode_object_find(dev
, crtc_req
->crtc_id
,
1988 DRM_MODE_OBJECT_CRTC
);
1990 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req
->crtc_id
);
1994 crtc
= obj_to_crtc(obj
);
1995 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc
->base
.id
);
1997 if (crtc_req
->mode_valid
) {
1998 int hdisplay
, vdisplay
;
1999 /* If we have a mode we need a framebuffer. */
2000 /* If we pass -1, set the mode with the currently bound fb */
2001 if (crtc_req
->fb_id
== -1) {
2003 DRM_DEBUG_KMS("CRTC doesn't have current FB\n");
2008 /* Make refcounting symmetric with the lookup path. */
2009 drm_framebuffer_reference(fb
);
2011 fb
= drm_framebuffer_lookup(dev
, crtc_req
->fb_id
);
2013 DRM_DEBUG_KMS("Unknown FB ID%d\n",
2020 mode
= drm_mode_create(dev
);
2026 ret
= drm_crtc_convert_umode(mode
, &crtc_req
->mode
);
2028 DRM_DEBUG_KMS("Invalid mode\n");
2032 drm_mode_set_crtcinfo(mode
, CRTC_INTERLACE_HALVE_V
);
2034 hdisplay
= mode
->hdisplay
;
2035 vdisplay
= mode
->vdisplay
;
2037 if (crtc
->invert_dimensions
)
2038 swap(hdisplay
, vdisplay
);
2040 if (hdisplay
> fb
->width
||
2041 vdisplay
> fb
->height
||
2042 crtc_req
->x
> fb
->width
- hdisplay
||
2043 crtc_req
->y
> fb
->height
- vdisplay
) {
2044 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
2045 fb
->width
, fb
->height
,
2046 hdisplay
, vdisplay
, crtc_req
->x
, crtc_req
->y
,
2047 crtc
->invert_dimensions
? " (inverted)" : "");
2053 if (crtc_req
->count_connectors
== 0 && mode
) {
2054 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
2059 if (crtc_req
->count_connectors
> 0 && (!mode
|| !fb
)) {
2060 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
2061 crtc_req
->count_connectors
);
2066 if (crtc_req
->count_connectors
> 0) {
2069 /* Avoid unbounded kernel memory allocation */
2070 if (crtc_req
->count_connectors
> config
->num_connector
) {
2075 connector_set
= kmalloc(crtc_req
->count_connectors
*
2076 sizeof(struct drm_connector
*),
2078 if (!connector_set
) {
2083 for (i
= 0; i
< crtc_req
->count_connectors
; i
++) {
2084 set_connectors_ptr
= (uint32_t __user
*)(unsigned long)crtc_req
->set_connectors_ptr
;
2085 if (get_user(out_id
, &set_connectors_ptr
[i
])) {
2090 obj
= drm_mode_object_find(dev
, out_id
,
2091 DRM_MODE_OBJECT_CONNECTOR
);
2093 DRM_DEBUG_KMS("Connector id %d unknown\n",
2098 connector
= obj_to_connector(obj
);
2099 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
2101 drm_get_connector_name(connector
));
2103 connector_set
[i
] = connector
;
2108 set
.x
= crtc_req
->x
;
2109 set
.y
= crtc_req
->y
;
2111 set
.connectors
= connector_set
;
2112 set
.num_connectors
= crtc_req
->count_connectors
;
2114 ret
= drm_mode_set_config_internal(&set
);
2118 drm_framebuffer_unreference(fb
);
2120 kfree(connector_set
);
2121 drm_mode_destroy(dev
, mode
);
2122 drm_modeset_unlock_all(dev
);
2126 int drm_mode_cursor_ioctl(struct drm_device
*dev
,
2127 void *data
, struct drm_file
*file_priv
)
2129 struct drm_mode_cursor
*req
= data
;
2130 struct drm_mode_object
*obj
;
2131 struct drm_crtc
*crtc
;
2134 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2137 if (!req
->flags
|| (~DRM_MODE_CURSOR_FLAGS
& req
->flags
))
2140 obj
= drm_mode_object_find(dev
, req
->crtc_id
, DRM_MODE_OBJECT_CRTC
);
2142 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req
->crtc_id
);
2145 crtc
= obj_to_crtc(obj
);
2147 mutex_lock(&crtc
->mutex
);
2148 if (req
->flags
& DRM_MODE_CURSOR_BO
) {
2149 if (!crtc
->funcs
->cursor_set
) {
2153 /* Turns off the cursor if handle is 0 */
2154 ret
= crtc
->funcs
->cursor_set(crtc
, file_priv
, req
->handle
,
2155 req
->width
, req
->height
);
2158 if (req
->flags
& DRM_MODE_CURSOR_MOVE
) {
2159 if (crtc
->funcs
->cursor_move
) {
2160 ret
= crtc
->funcs
->cursor_move(crtc
, req
->x
, req
->y
);
2167 mutex_unlock(&crtc
->mutex
);
2172 /* Original addfb only supported RGB formats, so figure out which one */
2173 uint32_t drm_mode_legacy_fb_format(uint32_t bpp
, uint32_t depth
)
2179 fmt
= DRM_FORMAT_C8
;
2183 fmt
= DRM_FORMAT_XRGB1555
;
2185 fmt
= DRM_FORMAT_RGB565
;
2188 fmt
= DRM_FORMAT_RGB888
;
2192 fmt
= DRM_FORMAT_XRGB8888
;
2193 else if (depth
== 30)
2194 fmt
= DRM_FORMAT_XRGB2101010
;
2196 fmt
= DRM_FORMAT_ARGB8888
;
2199 DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n");
2200 fmt
= DRM_FORMAT_XRGB8888
;
2206 EXPORT_SYMBOL(drm_mode_legacy_fb_format
);
2209 * drm_mode_addfb - add an FB to the graphics configuration
2210 * @dev: drm device for the ioctl
2211 * @data: data pointer for the ioctl
2212 * @file_priv: drm file for the ioctl call
2214 * Add a new FB to the specified CRTC, given a user request.
2216 * Called by the user via ioctl.
2219 * Zero on success, errno on failure.
2221 int drm_mode_addfb(struct drm_device
*dev
,
2222 void *data
, struct drm_file
*file_priv
)
2224 struct drm_mode_fb_cmd
*or = data
;
2225 struct drm_mode_fb_cmd2 r
= {};
2226 struct drm_mode_config
*config
= &dev
->mode_config
;
2227 struct drm_framebuffer
*fb
;
2230 /* Use new struct with format internally */
2231 r
.fb_id
= or->fb_id
;
2232 r
.width
= or->width
;
2233 r
.height
= or->height
;
2234 r
.pitches
[0] = or->pitch
;
2235 r
.pixel_format
= drm_mode_legacy_fb_format(or->bpp
, or->depth
);
2236 r
.handles
[0] = or->handle
;
2238 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2241 if ((config
->min_width
> r
.width
) || (r
.width
> config
->max_width
))
2244 if ((config
->min_height
> r
.height
) || (r
.height
> config
->max_height
))
2247 fb
= dev
->mode_config
.funcs
->fb_create(dev
, file_priv
, &r
);
2249 DRM_DEBUG_KMS("could not create framebuffer\n");
2253 mutex_lock(&file_priv
->fbs_lock
);
2254 or->fb_id
= fb
->base
.id
;
2255 list_add(&fb
->filp_head
, &file_priv
->fbs
);
2256 DRM_DEBUG_KMS("[FB:%d]\n", fb
->base
.id
);
2257 mutex_unlock(&file_priv
->fbs_lock
);
2262 static int format_check(const struct drm_mode_fb_cmd2
*r
)
2264 uint32_t format
= r
->pixel_format
& ~DRM_FORMAT_BIG_ENDIAN
;
2268 case DRM_FORMAT_RGB332
:
2269 case DRM_FORMAT_BGR233
:
2270 case DRM_FORMAT_XRGB4444
:
2271 case DRM_FORMAT_XBGR4444
:
2272 case DRM_FORMAT_RGBX4444
:
2273 case DRM_FORMAT_BGRX4444
:
2274 case DRM_FORMAT_ARGB4444
:
2275 case DRM_FORMAT_ABGR4444
:
2276 case DRM_FORMAT_RGBA4444
:
2277 case DRM_FORMAT_BGRA4444
:
2278 case DRM_FORMAT_XRGB1555
:
2279 case DRM_FORMAT_XBGR1555
:
2280 case DRM_FORMAT_RGBX5551
:
2281 case DRM_FORMAT_BGRX5551
:
2282 case DRM_FORMAT_ARGB1555
:
2283 case DRM_FORMAT_ABGR1555
:
2284 case DRM_FORMAT_RGBA5551
:
2285 case DRM_FORMAT_BGRA5551
:
2286 case DRM_FORMAT_RGB565
:
2287 case DRM_FORMAT_BGR565
:
2288 case DRM_FORMAT_RGB888
:
2289 case DRM_FORMAT_BGR888
:
2290 case DRM_FORMAT_XRGB8888
:
2291 case DRM_FORMAT_XBGR8888
:
2292 case DRM_FORMAT_RGBX8888
:
2293 case DRM_FORMAT_BGRX8888
:
2294 case DRM_FORMAT_ARGB8888
:
2295 case DRM_FORMAT_ABGR8888
:
2296 case DRM_FORMAT_RGBA8888
:
2297 case DRM_FORMAT_BGRA8888
:
2298 case DRM_FORMAT_XRGB2101010
:
2299 case DRM_FORMAT_XBGR2101010
:
2300 case DRM_FORMAT_RGBX1010102
:
2301 case DRM_FORMAT_BGRX1010102
:
2302 case DRM_FORMAT_ARGB2101010
:
2303 case DRM_FORMAT_ABGR2101010
:
2304 case DRM_FORMAT_RGBA1010102
:
2305 case DRM_FORMAT_BGRA1010102
:
2306 case DRM_FORMAT_YUYV
:
2307 case DRM_FORMAT_YVYU
:
2308 case DRM_FORMAT_UYVY
:
2309 case DRM_FORMAT_VYUY
:
2310 case DRM_FORMAT_AYUV
:
2311 case DRM_FORMAT_NV12
:
2312 case DRM_FORMAT_NV21
:
2313 case DRM_FORMAT_NV16
:
2314 case DRM_FORMAT_NV61
:
2315 case DRM_FORMAT_NV24
:
2316 case DRM_FORMAT_NV42
:
2317 case DRM_FORMAT_YUV410
:
2318 case DRM_FORMAT_YVU410
:
2319 case DRM_FORMAT_YUV411
:
2320 case DRM_FORMAT_YVU411
:
2321 case DRM_FORMAT_YUV420
:
2322 case DRM_FORMAT_YVU420
:
2323 case DRM_FORMAT_YUV422
:
2324 case DRM_FORMAT_YVU422
:
2325 case DRM_FORMAT_YUV444
:
2326 case DRM_FORMAT_YVU444
:
2333 static int framebuffer_check(const struct drm_mode_fb_cmd2
*r
)
2335 int ret
, hsub
, vsub
, num_planes
, i
;
2337 ret
= format_check(r
);
2339 DRM_DEBUG_KMS("bad framebuffer format %s\n",
2340 drm_get_format_name(r
->pixel_format
));
2344 hsub
= drm_format_horz_chroma_subsampling(r
->pixel_format
);
2345 vsub
= drm_format_vert_chroma_subsampling(r
->pixel_format
);
2346 num_planes
= drm_format_num_planes(r
->pixel_format
);
2348 if (r
->width
== 0 || r
->width
% hsub
) {
2349 DRM_DEBUG_KMS("bad framebuffer width %u\n", r
->height
);
2353 if (r
->height
== 0 || r
->height
% vsub
) {
2354 DRM_DEBUG_KMS("bad framebuffer height %u\n", r
->height
);
2358 for (i
= 0; i
< num_planes
; i
++) {
2359 unsigned int width
= r
->width
/ (i
!= 0 ? hsub
: 1);
2360 unsigned int height
= r
->height
/ (i
!= 0 ? vsub
: 1);
2361 unsigned int cpp
= drm_format_plane_cpp(r
->pixel_format
, i
);
2363 if (!r
->handles
[i
]) {
2364 DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i
);
2368 if ((uint64_t) width
* cpp
> UINT_MAX
)
2371 if ((uint64_t) height
* r
->pitches
[i
] + r
->offsets
[i
] > UINT_MAX
)
2374 if (r
->pitches
[i
] < width
* cpp
) {
2375 DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r
->pitches
[i
], i
);
2384 * drm_mode_addfb2 - add an FB to the graphics configuration
2385 * @dev: drm device for the ioctl
2386 * @data: data pointer for the ioctl
2387 * @file_priv: drm file for the ioctl call
2389 * Add a new FB to the specified CRTC, given a user request with format.
2391 * Called by the user via ioctl.
2394 * Zero on success, errno on failure.
2396 int drm_mode_addfb2(struct drm_device
*dev
,
2397 void *data
, struct drm_file
*file_priv
)
2399 struct drm_mode_fb_cmd2
*r
= data
;
2400 struct drm_mode_config
*config
= &dev
->mode_config
;
2401 struct drm_framebuffer
*fb
;
2404 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2407 if (r
->flags
& ~DRM_MODE_FB_INTERLACED
) {
2408 DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r
->flags
);
2412 if ((config
->min_width
> r
->width
) || (r
->width
> config
->max_width
)) {
2413 DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n",
2414 r
->width
, config
->min_width
, config
->max_width
);
2417 if ((config
->min_height
> r
->height
) || (r
->height
> config
->max_height
)) {
2418 DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n",
2419 r
->height
, config
->min_height
, config
->max_height
);
2423 ret
= framebuffer_check(r
);
2427 fb
= dev
->mode_config
.funcs
->fb_create(dev
, file_priv
, r
);
2429 DRM_DEBUG_KMS("could not create framebuffer\n");
2433 mutex_lock(&file_priv
->fbs_lock
);
2434 r
->fb_id
= fb
->base
.id
;
2435 list_add(&fb
->filp_head
, &file_priv
->fbs
);
2436 DRM_DEBUG_KMS("[FB:%d]\n", fb
->base
.id
);
2437 mutex_unlock(&file_priv
->fbs_lock
);
2444 * drm_mode_rmfb - remove an FB from the configuration
2445 * @dev: drm device for the ioctl
2446 * @data: data pointer for the ioctl
2447 * @file_priv: drm file for the ioctl call
2449 * Remove the FB specified by the user.
2451 * Called by the user via ioctl.
2454 * Zero on success, errno on failure.
2456 int drm_mode_rmfb(struct drm_device
*dev
,
2457 void *data
, struct drm_file
*file_priv
)
2459 struct drm_framebuffer
*fb
= NULL
;
2460 struct drm_framebuffer
*fbl
= NULL
;
2461 uint32_t *id
= data
;
2464 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2467 mutex_lock(&file_priv
->fbs_lock
);
2468 mutex_lock(&dev
->mode_config
.fb_lock
);
2469 fb
= __drm_framebuffer_lookup(dev
, *id
);
2473 list_for_each_entry(fbl
, &file_priv
->fbs
, filp_head
)
2479 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
2480 __drm_framebuffer_unregister(dev
, fb
);
2482 list_del_init(&fb
->filp_head
);
2483 mutex_unlock(&dev
->mode_config
.fb_lock
);
2484 mutex_unlock(&file_priv
->fbs_lock
);
2486 drm_framebuffer_remove(fb
);
2491 mutex_unlock(&dev
->mode_config
.fb_lock
);
2492 mutex_unlock(&file_priv
->fbs_lock
);
2498 * drm_mode_getfb - get FB info
2499 * @dev: drm device for the ioctl
2500 * @data: data pointer for the ioctl
2501 * @file_priv: drm file for the ioctl call
2503 * Lookup the FB given its ID and return info about it.
2505 * Called by the user via ioctl.
2508 * Zero on success, errno on failure.
2510 int drm_mode_getfb(struct drm_device
*dev
,
2511 void *data
, struct drm_file
*file_priv
)
2513 struct drm_mode_fb_cmd
*r
= data
;
2514 struct drm_framebuffer
*fb
;
2517 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2520 fb
= drm_framebuffer_lookup(dev
, r
->fb_id
);
2524 r
->height
= fb
->height
;
2525 r
->width
= fb
->width
;
2526 r
->depth
= fb
->depth
;
2527 r
->bpp
= fb
->bits_per_pixel
;
2528 r
->pitch
= fb
->pitches
[0];
2529 if (fb
->funcs
->create_handle
)
2530 ret
= fb
->funcs
->create_handle(fb
, file_priv
, &r
->handle
);
2534 drm_framebuffer_unreference(fb
);
2539 int drm_mode_dirtyfb_ioctl(struct drm_device
*dev
,
2540 void *data
, struct drm_file
*file_priv
)
2542 struct drm_clip_rect __user
*clips_ptr
;
2543 struct drm_clip_rect
*clips
= NULL
;
2544 struct drm_mode_fb_dirty_cmd
*r
= data
;
2545 struct drm_framebuffer
*fb
;
2550 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2553 fb
= drm_framebuffer_lookup(dev
, r
->fb_id
);
2557 num_clips
= r
->num_clips
;
2558 clips_ptr
= (struct drm_clip_rect __user
*)(unsigned long)r
->clips_ptr
;
2560 if (!num_clips
!= !clips_ptr
) {
2565 flags
= DRM_MODE_FB_DIRTY_FLAGS
& r
->flags
;
2567 /* If userspace annotates copy, clips must come in pairs */
2568 if (flags
& DRM_MODE_FB_DIRTY_ANNOTATE_COPY
&& (num_clips
% 2)) {
2573 if (num_clips
&& clips_ptr
) {
2574 if (num_clips
< 0 || num_clips
> DRM_MODE_FB_DIRTY_MAX_CLIPS
) {
2578 clips
= kzalloc(num_clips
* sizeof(*clips
), GFP_KERNEL
);
2584 ret
= copy_from_user(clips
, clips_ptr
,
2585 num_clips
* sizeof(*clips
));
2592 if (fb
->funcs
->dirty
) {
2593 drm_modeset_lock_all(dev
);
2594 ret
= fb
->funcs
->dirty(fb
, file_priv
, flags
, r
->color
,
2596 drm_modeset_unlock_all(dev
);
2604 drm_framebuffer_unreference(fb
);
2611 * drm_fb_release - remove and free the FBs on this file
2612 * @priv: drm file for the ioctl
2614 * Destroy all the FBs associated with @filp.
2616 * Called by the user via ioctl.
2619 * Zero on success, errno on failure.
2621 void drm_fb_release(struct drm_file
*priv
)
2623 struct drm_device
*dev
= priv
->minor
->dev
;
2624 struct drm_framebuffer
*fb
, *tfb
;
2626 mutex_lock(&priv
->fbs_lock
);
2627 list_for_each_entry_safe(fb
, tfb
, &priv
->fbs
, filp_head
) {
2629 mutex_lock(&dev
->mode_config
.fb_lock
);
2630 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
2631 __drm_framebuffer_unregister(dev
, fb
);
2632 mutex_unlock(&dev
->mode_config
.fb_lock
);
2634 list_del_init(&fb
->filp_head
);
2636 /* This will also drop the fpriv->fbs reference. */
2637 drm_framebuffer_remove(fb
);
2639 mutex_unlock(&priv
->fbs_lock
);
2642 struct drm_property
*drm_property_create(struct drm_device
*dev
, int flags
,
2643 const char *name
, int num_values
)
2645 struct drm_property
*property
= NULL
;
2648 property
= kzalloc(sizeof(struct drm_property
), GFP_KERNEL
);
2653 property
->values
= kzalloc(sizeof(uint64_t)*num_values
, GFP_KERNEL
);
2654 if (!property
->values
)
2658 ret
= drm_mode_object_get(dev
, &property
->base
, DRM_MODE_OBJECT_PROPERTY
);
2662 property
->flags
= flags
;
2663 property
->num_values
= num_values
;
2664 INIT_LIST_HEAD(&property
->enum_blob_list
);
2667 strncpy(property
->name
, name
, DRM_PROP_NAME_LEN
);
2668 property
->name
[DRM_PROP_NAME_LEN
-1] = '\0';
2671 list_add_tail(&property
->head
, &dev
->mode_config
.property_list
);
2674 kfree(property
->values
);
2678 EXPORT_SYMBOL(drm_property_create
);
2680 struct drm_property
*drm_property_create_enum(struct drm_device
*dev
, int flags
,
2682 const struct drm_prop_enum_list
*props
,
2685 struct drm_property
*property
;
2688 flags
|= DRM_MODE_PROP_ENUM
;
2690 property
= drm_property_create(dev
, flags
, name
, num_values
);
2694 for (i
= 0; i
< num_values
; i
++) {
2695 ret
= drm_property_add_enum(property
, i
,
2699 drm_property_destroy(dev
, property
);
2706 EXPORT_SYMBOL(drm_property_create_enum
);
2708 struct drm_property
*drm_property_create_bitmask(struct drm_device
*dev
,
2709 int flags
, const char *name
,
2710 const struct drm_prop_enum_list
*props
,
2713 struct drm_property
*property
;
2716 flags
|= DRM_MODE_PROP_BITMASK
;
2718 property
= drm_property_create(dev
, flags
, name
, num_values
);
2722 for (i
= 0; i
< num_values
; i
++) {
2723 ret
= drm_property_add_enum(property
, i
,
2727 drm_property_destroy(dev
, property
);
2734 EXPORT_SYMBOL(drm_property_create_bitmask
);
2736 struct drm_property
*drm_property_create_range(struct drm_device
*dev
, int flags
,
2738 uint64_t min
, uint64_t max
)
2740 struct drm_property
*property
;
2742 flags
|= DRM_MODE_PROP_RANGE
;
2744 property
= drm_property_create(dev
, flags
, name
, 2);
2748 property
->values
[0] = min
;
2749 property
->values
[1] = max
;
2753 EXPORT_SYMBOL(drm_property_create_range
);
2755 int drm_property_add_enum(struct drm_property
*property
, int index
,
2756 uint64_t value
, const char *name
)
2758 struct drm_property_enum
*prop_enum
;
2760 if (!(property
->flags
& (DRM_MODE_PROP_ENUM
| DRM_MODE_PROP_BITMASK
)))
2764 * Bitmask enum properties have the additional constraint of values
2767 if ((property
->flags
& DRM_MODE_PROP_BITMASK
) && (value
> 63))
2770 if (!list_empty(&property
->enum_blob_list
)) {
2771 list_for_each_entry(prop_enum
, &property
->enum_blob_list
, head
) {
2772 if (prop_enum
->value
== value
) {
2773 strncpy(prop_enum
->name
, name
, DRM_PROP_NAME_LEN
);
2774 prop_enum
->name
[DRM_PROP_NAME_LEN
-1] = '\0';
2780 prop_enum
= kzalloc(sizeof(struct drm_property_enum
), GFP_KERNEL
);
2784 strncpy(prop_enum
->name
, name
, DRM_PROP_NAME_LEN
);
2785 prop_enum
->name
[DRM_PROP_NAME_LEN
-1] = '\0';
2786 prop_enum
->value
= value
;
2788 property
->values
[index
] = value
;
2789 list_add_tail(&prop_enum
->head
, &property
->enum_blob_list
);
2792 EXPORT_SYMBOL(drm_property_add_enum
);
2794 void drm_property_destroy(struct drm_device
*dev
, struct drm_property
*property
)
2796 struct drm_property_enum
*prop_enum
, *pt
;
2798 list_for_each_entry_safe(prop_enum
, pt
, &property
->enum_blob_list
, head
) {
2799 list_del(&prop_enum
->head
);
2803 if (property
->num_values
)
2804 kfree(property
->values
);
2805 drm_mode_object_put(dev
, &property
->base
);
2806 list_del(&property
->head
);
2809 EXPORT_SYMBOL(drm_property_destroy
);
2811 void drm_object_attach_property(struct drm_mode_object
*obj
,
2812 struct drm_property
*property
,
2815 int count
= obj
->properties
->count
;
2817 if (count
== DRM_OBJECT_MAX_PROPERTY
) {
2818 WARN(1, "Failed to attach object property (type: 0x%x). Please "
2819 "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time "
2820 "you see this message on the same object type.\n",
2825 obj
->properties
->ids
[count
] = property
->base
.id
;
2826 obj
->properties
->values
[count
] = init_val
;
2827 obj
->properties
->count
++;
2829 EXPORT_SYMBOL(drm_object_attach_property
);
2831 int drm_object_property_set_value(struct drm_mode_object
*obj
,
2832 struct drm_property
*property
, uint64_t val
)
2836 for (i
= 0; i
< obj
->properties
->count
; i
++) {
2837 if (obj
->properties
->ids
[i
] == property
->base
.id
) {
2838 obj
->properties
->values
[i
] = val
;
2845 EXPORT_SYMBOL(drm_object_property_set_value
);
2847 int drm_object_property_get_value(struct drm_mode_object
*obj
,
2848 struct drm_property
*property
, uint64_t *val
)
2852 for (i
= 0; i
< obj
->properties
->count
; i
++) {
2853 if (obj
->properties
->ids
[i
] == property
->base
.id
) {
2854 *val
= obj
->properties
->values
[i
];
2861 EXPORT_SYMBOL(drm_object_property_get_value
);
2863 int drm_mode_getproperty_ioctl(struct drm_device
*dev
,
2864 void *data
, struct drm_file
*file_priv
)
2866 struct drm_mode_object
*obj
;
2867 struct drm_mode_get_property
*out_resp
= data
;
2868 struct drm_property
*property
;
2871 int value_count
= 0;
2874 struct drm_property_enum
*prop_enum
;
2875 struct drm_mode_property_enum __user
*enum_ptr
;
2876 struct drm_property_blob
*prop_blob
;
2877 uint32_t __user
*blob_id_ptr
;
2878 uint64_t __user
*values_ptr
;
2879 uint32_t __user
*blob_length_ptr
;
2881 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2884 drm_modeset_lock_all(dev
);
2885 obj
= drm_mode_object_find(dev
, out_resp
->prop_id
, DRM_MODE_OBJECT_PROPERTY
);
2890 property
= obj_to_property(obj
);
2892 if (property
->flags
& (DRM_MODE_PROP_ENUM
| DRM_MODE_PROP_BITMASK
)) {
2893 list_for_each_entry(prop_enum
, &property
->enum_blob_list
, head
)
2895 } else if (property
->flags
& DRM_MODE_PROP_BLOB
) {
2896 list_for_each_entry(prop_blob
, &property
->enum_blob_list
, head
)
2900 value_count
= property
->num_values
;
2902 strncpy(out_resp
->name
, property
->name
, DRM_PROP_NAME_LEN
);
2903 out_resp
->name
[DRM_PROP_NAME_LEN
-1] = 0;
2904 out_resp
->flags
= property
->flags
;
2906 if ((out_resp
->count_values
>= value_count
) && value_count
) {
2907 values_ptr
= (uint64_t __user
*)(unsigned long)out_resp
->values_ptr
;
2908 for (i
= 0; i
< value_count
; i
++) {
2909 if (copy_to_user(values_ptr
+ i
, &property
->values
[i
], sizeof(uint64_t))) {
2915 out_resp
->count_values
= value_count
;
2917 if (property
->flags
& (DRM_MODE_PROP_ENUM
| DRM_MODE_PROP_BITMASK
)) {
2918 if ((out_resp
->count_enum_blobs
>= enum_count
) && enum_count
) {
2920 enum_ptr
= (struct drm_mode_property_enum __user
*)(unsigned long)out_resp
->enum_blob_ptr
;
2921 list_for_each_entry(prop_enum
, &property
->enum_blob_list
, head
) {
2923 if (copy_to_user(&enum_ptr
[copied
].value
, &prop_enum
->value
, sizeof(uint64_t))) {
2928 if (copy_to_user(&enum_ptr
[copied
].name
,
2929 &prop_enum
->name
, DRM_PROP_NAME_LEN
)) {
2936 out_resp
->count_enum_blobs
= enum_count
;
2939 if (property
->flags
& DRM_MODE_PROP_BLOB
) {
2940 if ((out_resp
->count_enum_blobs
>= blob_count
) && blob_count
) {
2942 blob_id_ptr
= (uint32_t __user
*)(unsigned long)out_resp
->enum_blob_ptr
;
2943 blob_length_ptr
= (uint32_t __user
*)(unsigned long)out_resp
->values_ptr
;
2945 list_for_each_entry(prop_blob
, &property
->enum_blob_list
, head
) {
2946 if (put_user(prop_blob
->base
.id
, blob_id_ptr
+ copied
)) {
2951 if (put_user(prop_blob
->length
, blob_length_ptr
+ copied
)) {
2959 out_resp
->count_enum_blobs
= blob_count
;
2962 drm_modeset_unlock_all(dev
);
2966 static struct drm_property_blob
*drm_property_create_blob(struct drm_device
*dev
, int length
,
2969 struct drm_property_blob
*blob
;
2972 if (!length
|| !data
)
2975 blob
= kzalloc(sizeof(struct drm_property_blob
)+length
, GFP_KERNEL
);
2979 ret
= drm_mode_object_get(dev
, &blob
->base
, DRM_MODE_OBJECT_BLOB
);
2985 blob
->length
= length
;
2987 memcpy(blob
->data
, data
, length
);
2989 list_add_tail(&blob
->head
, &dev
->mode_config
.property_blob_list
);
2993 static void drm_property_destroy_blob(struct drm_device
*dev
,
2994 struct drm_property_blob
*blob
)
2996 drm_mode_object_put(dev
, &blob
->base
);
2997 list_del(&blob
->head
);
3001 int drm_mode_getblob_ioctl(struct drm_device
*dev
,
3002 void *data
, struct drm_file
*file_priv
)
3004 struct drm_mode_object
*obj
;
3005 struct drm_mode_get_blob
*out_resp
= data
;
3006 struct drm_property_blob
*blob
;
3008 void __user
*blob_ptr
;
3010 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
3013 drm_modeset_lock_all(dev
);
3014 obj
= drm_mode_object_find(dev
, out_resp
->blob_id
, DRM_MODE_OBJECT_BLOB
);
3019 blob
= obj_to_blob(obj
);
3021 if (out_resp
->length
== blob
->length
) {
3022 blob_ptr
= (void __user
*)(unsigned long)out_resp
->data
;
3023 if (copy_to_user(blob_ptr
, blob
->data
, blob
->length
)){
3028 out_resp
->length
= blob
->length
;
3031 drm_modeset_unlock_all(dev
);
3035 int drm_mode_connector_update_edid_property(struct drm_connector
*connector
,
3038 struct drm_device
*dev
= connector
->dev
;
3041 if (connector
->edid_blob_ptr
)
3042 drm_property_destroy_blob(dev
, connector
->edid_blob_ptr
);
3044 /* Delete edid, when there is none. */
3046 connector
->edid_blob_ptr
= NULL
;
3047 ret
= drm_object_property_set_value(&connector
->base
, dev
->mode_config
.edid_property
, 0);
3051 size
= EDID_LENGTH
* (1 + edid
->extensions
);
3052 connector
->edid_blob_ptr
= drm_property_create_blob(connector
->dev
,
3054 if (!connector
->edid_blob_ptr
)
3057 ret
= drm_object_property_set_value(&connector
->base
,
3058 dev
->mode_config
.edid_property
,
3059 connector
->edid_blob_ptr
->base
.id
);
3063 EXPORT_SYMBOL(drm_mode_connector_update_edid_property
);
3065 static bool drm_property_change_is_valid(struct drm_property
*property
,
3068 if (property
->flags
& DRM_MODE_PROP_IMMUTABLE
)
3070 if (property
->flags
& DRM_MODE_PROP_RANGE
) {
3071 if (value
< property
->values
[0] || value
> property
->values
[1])
3074 } else if (property
->flags
& DRM_MODE_PROP_BITMASK
) {
3076 uint64_t valid_mask
= 0;
3077 for (i
= 0; i
< property
->num_values
; i
++)
3078 valid_mask
|= (1ULL << property
->values
[i
]);
3079 return !(value
& ~valid_mask
);
3080 } else if (property
->flags
& DRM_MODE_PROP_BLOB
) {
3081 /* Only the driver knows */
3085 for (i
= 0; i
< property
->num_values
; i
++)
3086 if (property
->values
[i
] == value
)
3092 int drm_mode_connector_property_set_ioctl(struct drm_device
*dev
,
3093 void *data
, struct drm_file
*file_priv
)
3095 struct drm_mode_connector_set_property
*conn_set_prop
= data
;
3096 struct drm_mode_obj_set_property obj_set_prop
= {
3097 .value
= conn_set_prop
->value
,
3098 .prop_id
= conn_set_prop
->prop_id
,
3099 .obj_id
= conn_set_prop
->connector_id
,
3100 .obj_type
= DRM_MODE_OBJECT_CONNECTOR
3103 /* It does all the locking and checking we need */
3104 return drm_mode_obj_set_property_ioctl(dev
, &obj_set_prop
, file_priv
);
3107 static int drm_mode_connector_set_obj_prop(struct drm_mode_object
*obj
,
3108 struct drm_property
*property
,
3112 struct drm_connector
*connector
= obj_to_connector(obj
);
3114 /* Do DPMS ourselves */
3115 if (property
== connector
->dev
->mode_config
.dpms_property
) {
3116 if (connector
->funcs
->dpms
)
3117 (*connector
->funcs
->dpms
)(connector
, (int)value
);
3119 } else if (connector
->funcs
->set_property
)
3120 ret
= connector
->funcs
->set_property(connector
, property
, value
);
3122 /* store the property value if successful */
3124 drm_object_property_set_value(&connector
->base
, property
, value
);
3128 static int drm_mode_crtc_set_obj_prop(struct drm_mode_object
*obj
,
3129 struct drm_property
*property
,
3133 struct drm_crtc
*crtc
= obj_to_crtc(obj
);
3135 if (crtc
->funcs
->set_property
)
3136 ret
= crtc
->funcs
->set_property(crtc
, property
, value
);
3138 drm_object_property_set_value(obj
, property
, value
);
3143 static int drm_mode_plane_set_obj_prop(struct drm_mode_object
*obj
,
3144 struct drm_property
*property
,
3148 struct drm_plane
*plane
= obj_to_plane(obj
);
3150 if (plane
->funcs
->set_property
)
3151 ret
= plane
->funcs
->set_property(plane
, property
, value
);
3153 drm_object_property_set_value(obj
, property
, value
);
3158 int drm_mode_obj_get_properties_ioctl(struct drm_device
*dev
, void *data
,
3159 struct drm_file
*file_priv
)
3161 struct drm_mode_obj_get_properties
*arg
= data
;
3162 struct drm_mode_object
*obj
;
3166 int props_count
= 0;
3167 uint32_t __user
*props_ptr
;
3168 uint64_t __user
*prop_values_ptr
;
3170 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
3173 drm_modeset_lock_all(dev
);
3175 obj
= drm_mode_object_find(dev
, arg
->obj_id
, arg
->obj_type
);
3180 if (!obj
->properties
) {
3185 props_count
= obj
->properties
->count
;
3187 /* This ioctl is called twice, once to determine how much space is
3188 * needed, and the 2nd time to fill it. */
3189 if ((arg
->count_props
>= props_count
) && props_count
) {
3191 props_ptr
= (uint32_t __user
*)(unsigned long)(arg
->props_ptr
);
3192 prop_values_ptr
= (uint64_t __user
*)(unsigned long)
3193 (arg
->prop_values_ptr
);
3194 for (i
= 0; i
< props_count
; i
++) {
3195 if (put_user(obj
->properties
->ids
[i
],
3196 props_ptr
+ copied
)) {
3200 if (put_user(obj
->properties
->values
[i
],
3201 prop_values_ptr
+ copied
)) {
3208 arg
->count_props
= props_count
;
3210 drm_modeset_unlock_all(dev
);
3214 int drm_mode_obj_set_property_ioctl(struct drm_device
*dev
, void *data
,
3215 struct drm_file
*file_priv
)
3217 struct drm_mode_obj_set_property
*arg
= data
;
3218 struct drm_mode_object
*arg_obj
;
3219 struct drm_mode_object
*prop_obj
;
3220 struct drm_property
*property
;
3224 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
3227 drm_modeset_lock_all(dev
);
3229 arg_obj
= drm_mode_object_find(dev
, arg
->obj_id
, arg
->obj_type
);
3232 if (!arg_obj
->properties
)
3235 for (i
= 0; i
< arg_obj
->properties
->count
; i
++)
3236 if (arg_obj
->properties
->ids
[i
] == arg
->prop_id
)
3239 if (i
== arg_obj
->properties
->count
)
3242 prop_obj
= drm_mode_object_find(dev
, arg
->prop_id
,
3243 DRM_MODE_OBJECT_PROPERTY
);
3246 property
= obj_to_property(prop_obj
);
3248 if (!drm_property_change_is_valid(property
, arg
->value
))
3251 switch (arg_obj
->type
) {
3252 case DRM_MODE_OBJECT_CONNECTOR
:
3253 ret
= drm_mode_connector_set_obj_prop(arg_obj
, property
,
3256 case DRM_MODE_OBJECT_CRTC
:
3257 ret
= drm_mode_crtc_set_obj_prop(arg_obj
, property
, arg
->value
);
3259 case DRM_MODE_OBJECT_PLANE
:
3260 ret
= drm_mode_plane_set_obj_prop(arg_obj
, property
, arg
->value
);
3265 drm_modeset_unlock_all(dev
);
3269 int drm_mode_connector_attach_encoder(struct drm_connector
*connector
,
3270 struct drm_encoder
*encoder
)
3274 for (i
= 0; i
< DRM_CONNECTOR_MAX_ENCODER
; i
++) {
3275 if (connector
->encoder_ids
[i
] == 0) {
3276 connector
->encoder_ids
[i
] = encoder
->base
.id
;
3282 EXPORT_SYMBOL(drm_mode_connector_attach_encoder
);
3284 void drm_mode_connector_detach_encoder(struct drm_connector
*connector
,
3285 struct drm_encoder
*encoder
)
3288 for (i
= 0; i
< DRM_CONNECTOR_MAX_ENCODER
; i
++) {
3289 if (connector
->encoder_ids
[i
] == encoder
->base
.id
) {
3290 connector
->encoder_ids
[i
] = 0;
3291 if (connector
->encoder
== encoder
)
3292 connector
->encoder
= NULL
;
3297 EXPORT_SYMBOL(drm_mode_connector_detach_encoder
);
3299 int drm_mode_crtc_set_gamma_size(struct drm_crtc
*crtc
,
3302 crtc
->gamma_size
= gamma_size
;
3304 crtc
->gamma_store
= kzalloc(gamma_size
* sizeof(uint16_t) * 3, GFP_KERNEL
);
3305 if (!crtc
->gamma_store
) {
3306 crtc
->gamma_size
= 0;
3312 EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size
);
3314 int drm_mode_gamma_set_ioctl(struct drm_device
*dev
,
3315 void *data
, struct drm_file
*file_priv
)
3317 struct drm_mode_crtc_lut
*crtc_lut
= data
;
3318 struct drm_mode_object
*obj
;
3319 struct drm_crtc
*crtc
;
3320 void *r_base
, *g_base
, *b_base
;
3324 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
3327 drm_modeset_lock_all(dev
);
3328 obj
= drm_mode_object_find(dev
, crtc_lut
->crtc_id
, DRM_MODE_OBJECT_CRTC
);
3333 crtc
= obj_to_crtc(obj
);
3335 if (crtc
->funcs
->gamma_set
== NULL
) {
3340 /* memcpy into gamma store */
3341 if (crtc_lut
->gamma_size
!= crtc
->gamma_size
) {
3346 size
= crtc_lut
->gamma_size
* (sizeof(uint16_t));
3347 r_base
= crtc
->gamma_store
;
3348 if (copy_from_user(r_base
, (void __user
*)(unsigned long)crtc_lut
->red
, size
)) {
3353 g_base
= r_base
+ size
;
3354 if (copy_from_user(g_base
, (void __user
*)(unsigned long)crtc_lut
->green
, size
)) {
3359 b_base
= g_base
+ size
;
3360 if (copy_from_user(b_base
, (void __user
*)(unsigned long)crtc_lut
->blue
, size
)) {
3365 crtc
->funcs
->gamma_set(crtc
, r_base
, g_base
, b_base
, 0, crtc
->gamma_size
);
3368 drm_modeset_unlock_all(dev
);
3373 int drm_mode_gamma_get_ioctl(struct drm_device
*dev
,
3374 void *data
, struct drm_file
*file_priv
)
3376 struct drm_mode_crtc_lut
*crtc_lut
= data
;
3377 struct drm_mode_object
*obj
;
3378 struct drm_crtc
*crtc
;
3379 void *r_base
, *g_base
, *b_base
;
3383 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
3386 drm_modeset_lock_all(dev
);
3387 obj
= drm_mode_object_find(dev
, crtc_lut
->crtc_id
, DRM_MODE_OBJECT_CRTC
);
3392 crtc
= obj_to_crtc(obj
);
3394 /* memcpy into gamma store */
3395 if (crtc_lut
->gamma_size
!= crtc
->gamma_size
) {
3400 size
= crtc_lut
->gamma_size
* (sizeof(uint16_t));
3401 r_base
= crtc
->gamma_store
;
3402 if (copy_to_user((void __user
*)(unsigned long)crtc_lut
->red
, r_base
, size
)) {
3407 g_base
= r_base
+ size
;
3408 if (copy_to_user((void __user
*)(unsigned long)crtc_lut
->green
, g_base
, size
)) {
3413 b_base
= g_base
+ size
;
3414 if (copy_to_user((void __user
*)(unsigned long)crtc_lut
->blue
, b_base
, size
)) {
3419 drm_modeset_unlock_all(dev
);
3423 int drm_mode_page_flip_ioctl(struct drm_device
*dev
,
3424 void *data
, struct drm_file
*file_priv
)
3426 struct drm_mode_crtc_page_flip
*page_flip
= data
;
3427 struct drm_mode_object
*obj
;
3428 struct drm_crtc
*crtc
;
3429 struct drm_framebuffer
*fb
= NULL
, *old_fb
= NULL
;
3430 struct drm_pending_vblank_event
*e
= NULL
;
3431 unsigned long flags
;
3432 int hdisplay
, vdisplay
;
3435 if (page_flip
->flags
& ~DRM_MODE_PAGE_FLIP_FLAGS
||
3436 page_flip
->reserved
!= 0)
3439 obj
= drm_mode_object_find(dev
, page_flip
->crtc_id
, DRM_MODE_OBJECT_CRTC
);
3442 crtc
= obj_to_crtc(obj
);
3444 mutex_lock(&crtc
->mutex
);
3445 if (crtc
->fb
== NULL
) {
3446 /* The framebuffer is currently unbound, presumably
3447 * due to a hotplug event, that userspace has not
3454 if (crtc
->funcs
->page_flip
== NULL
)
3457 fb
= drm_framebuffer_lookup(dev
, page_flip
->fb_id
);
3461 hdisplay
= crtc
->mode
.hdisplay
;
3462 vdisplay
= crtc
->mode
.vdisplay
;
3464 if (crtc
->invert_dimensions
)
3465 swap(hdisplay
, vdisplay
);
3467 if (hdisplay
> fb
->width
||
3468 vdisplay
> fb
->height
||
3469 crtc
->x
> fb
->width
- hdisplay
||
3470 crtc
->y
> fb
->height
- vdisplay
) {
3471 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
3472 fb
->width
, fb
->height
, hdisplay
, vdisplay
, crtc
->x
, crtc
->y
,
3473 crtc
->invert_dimensions
? " (inverted)" : "");
3478 if (crtc
->fb
->pixel_format
!= fb
->pixel_format
) {
3479 DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n");
3484 if (page_flip
->flags
& DRM_MODE_PAGE_FLIP_EVENT
) {
3486 spin_lock_irqsave(&dev
->event_lock
, flags
);
3487 if (file_priv
->event_space
< sizeof e
->event
) {
3488 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
3491 file_priv
->event_space
-= sizeof e
->event
;
3492 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
3494 e
= kzalloc(sizeof *e
, GFP_KERNEL
);
3496 spin_lock_irqsave(&dev
->event_lock
, flags
);
3497 file_priv
->event_space
+= sizeof e
->event
;
3498 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
3502 e
->event
.base
.type
= DRM_EVENT_FLIP_COMPLETE
;
3503 e
->event
.base
.length
= sizeof e
->event
;
3504 e
->event
.user_data
= page_flip
->user_data
;
3505 e
->base
.event
= &e
->event
.base
;
3506 e
->base
.file_priv
= file_priv
;
3508 (void (*) (struct drm_pending_event
*)) kfree
;
3512 ret
= crtc
->funcs
->page_flip(crtc
, fb
, e
);
3514 if (page_flip
->flags
& DRM_MODE_PAGE_FLIP_EVENT
) {
3515 spin_lock_irqsave(&dev
->event_lock
, flags
);
3516 file_priv
->event_space
+= sizeof e
->event
;
3517 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
3520 /* Keep the old fb, don't unref it. */
3524 * Warn if the driver hasn't properly updated the crtc->fb
3525 * field to reflect that the new framebuffer is now used.
3526 * Failing to do so will screw with the reference counting
3529 WARN_ON(crtc
->fb
!= fb
);
3530 /* Unref only the old framebuffer. */
3536 drm_framebuffer_unreference(fb
);
3538 drm_framebuffer_unreference(old_fb
);
3539 mutex_unlock(&crtc
->mutex
);
3544 void drm_mode_config_reset(struct drm_device
*dev
)
3546 struct drm_crtc
*crtc
;
3547 struct drm_encoder
*encoder
;
3548 struct drm_connector
*connector
;
3550 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
)
3551 if (crtc
->funcs
->reset
)
3552 crtc
->funcs
->reset(crtc
);
3554 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
)
3555 if (encoder
->funcs
->reset
)
3556 encoder
->funcs
->reset(encoder
);
3558 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
3559 connector
->status
= connector_status_unknown
;
3561 if (connector
->funcs
->reset
)
3562 connector
->funcs
->reset(connector
);
3565 EXPORT_SYMBOL(drm_mode_config_reset
);
3567 int drm_mode_create_dumb_ioctl(struct drm_device
*dev
,
3568 void *data
, struct drm_file
*file_priv
)
3570 struct drm_mode_create_dumb
*args
= data
;
3572 if (!dev
->driver
->dumb_create
)
3574 return dev
->driver
->dumb_create(file_priv
, dev
, args
);
3577 int drm_mode_mmap_dumb_ioctl(struct drm_device
*dev
,
3578 void *data
, struct drm_file
*file_priv
)
3580 struct drm_mode_map_dumb
*args
= data
;
3582 /* call driver ioctl to get mmap offset */
3583 if (!dev
->driver
->dumb_map_offset
)
3586 return dev
->driver
->dumb_map_offset(file_priv
, dev
, args
->handle
, &args
->offset
);
3589 int drm_mode_destroy_dumb_ioctl(struct drm_device
*dev
,
3590 void *data
, struct drm_file
*file_priv
)
3592 struct drm_mode_destroy_dumb
*args
= data
;
3594 if (!dev
->driver
->dumb_destroy
)
3597 return dev
->driver
->dumb_destroy(file_priv
, dev
, args
->handle
);
3601 * Just need to support RGB formats here for compat with code that doesn't
3602 * use pixel formats directly yet.
3604 void drm_fb_get_bpp_depth(uint32_t format
, unsigned int *depth
,
3609 case DRM_FORMAT_RGB332
:
3610 case DRM_FORMAT_BGR233
:
3614 case DRM_FORMAT_XRGB1555
:
3615 case DRM_FORMAT_XBGR1555
:
3616 case DRM_FORMAT_RGBX5551
:
3617 case DRM_FORMAT_BGRX5551
:
3618 case DRM_FORMAT_ARGB1555
:
3619 case DRM_FORMAT_ABGR1555
:
3620 case DRM_FORMAT_RGBA5551
:
3621 case DRM_FORMAT_BGRA5551
:
3625 case DRM_FORMAT_RGB565
:
3626 case DRM_FORMAT_BGR565
:
3630 case DRM_FORMAT_RGB888
:
3631 case DRM_FORMAT_BGR888
:
3635 case DRM_FORMAT_XRGB8888
:
3636 case DRM_FORMAT_XBGR8888
:
3637 case DRM_FORMAT_RGBX8888
:
3638 case DRM_FORMAT_BGRX8888
:
3642 case DRM_FORMAT_XRGB2101010
:
3643 case DRM_FORMAT_XBGR2101010
:
3644 case DRM_FORMAT_RGBX1010102
:
3645 case DRM_FORMAT_BGRX1010102
:
3646 case DRM_FORMAT_ARGB2101010
:
3647 case DRM_FORMAT_ABGR2101010
:
3648 case DRM_FORMAT_RGBA1010102
:
3649 case DRM_FORMAT_BGRA1010102
:
3653 case DRM_FORMAT_ARGB8888
:
3654 case DRM_FORMAT_ABGR8888
:
3655 case DRM_FORMAT_RGBA8888
:
3656 case DRM_FORMAT_BGRA8888
:
3661 DRM_DEBUG_KMS("unsupported pixel format\n");
3667 EXPORT_SYMBOL(drm_fb_get_bpp_depth
);
3670 * drm_format_num_planes - get the number of planes for format
3671 * @format: pixel format (DRM_FORMAT_*)
3674 * The number of planes used by the specified pixel format.
3676 int drm_format_num_planes(uint32_t format
)
3679 case DRM_FORMAT_YUV410
:
3680 case DRM_FORMAT_YVU410
:
3681 case DRM_FORMAT_YUV411
:
3682 case DRM_FORMAT_YVU411
:
3683 case DRM_FORMAT_YUV420
:
3684 case DRM_FORMAT_YVU420
:
3685 case DRM_FORMAT_YUV422
:
3686 case DRM_FORMAT_YVU422
:
3687 case DRM_FORMAT_YUV444
:
3688 case DRM_FORMAT_YVU444
:
3690 case DRM_FORMAT_NV12
:
3691 case DRM_FORMAT_NV21
:
3692 case DRM_FORMAT_NV16
:
3693 case DRM_FORMAT_NV61
:
3694 case DRM_FORMAT_NV24
:
3695 case DRM_FORMAT_NV42
:
3701 EXPORT_SYMBOL(drm_format_num_planes
);
3704 * drm_format_plane_cpp - determine the bytes per pixel value
3705 * @format: pixel format (DRM_FORMAT_*)
3706 * @plane: plane index
3709 * The bytes per pixel value for the specified plane.
3711 int drm_format_plane_cpp(uint32_t format
, int plane
)
3716 if (plane
>= drm_format_num_planes(format
))
3720 case DRM_FORMAT_YUYV
:
3721 case DRM_FORMAT_YVYU
:
3722 case DRM_FORMAT_UYVY
:
3723 case DRM_FORMAT_VYUY
:
3725 case DRM_FORMAT_NV12
:
3726 case DRM_FORMAT_NV21
:
3727 case DRM_FORMAT_NV16
:
3728 case DRM_FORMAT_NV61
:
3729 case DRM_FORMAT_NV24
:
3730 case DRM_FORMAT_NV42
:
3731 return plane
? 2 : 1;
3732 case DRM_FORMAT_YUV410
:
3733 case DRM_FORMAT_YVU410
:
3734 case DRM_FORMAT_YUV411
:
3735 case DRM_FORMAT_YVU411
:
3736 case DRM_FORMAT_YUV420
:
3737 case DRM_FORMAT_YVU420
:
3738 case DRM_FORMAT_YUV422
:
3739 case DRM_FORMAT_YVU422
:
3740 case DRM_FORMAT_YUV444
:
3741 case DRM_FORMAT_YVU444
:
3744 drm_fb_get_bpp_depth(format
, &depth
, &bpp
);
3748 EXPORT_SYMBOL(drm_format_plane_cpp
);
3751 * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor
3752 * @format: pixel format (DRM_FORMAT_*)
3755 * The horizontal chroma subsampling factor for the
3756 * specified pixel format.
3758 int drm_format_horz_chroma_subsampling(uint32_t format
)
3761 case DRM_FORMAT_YUV411
:
3762 case DRM_FORMAT_YVU411
:
3763 case DRM_FORMAT_YUV410
:
3764 case DRM_FORMAT_YVU410
:
3766 case DRM_FORMAT_YUYV
:
3767 case DRM_FORMAT_YVYU
:
3768 case DRM_FORMAT_UYVY
:
3769 case DRM_FORMAT_VYUY
:
3770 case DRM_FORMAT_NV12
:
3771 case DRM_FORMAT_NV21
:
3772 case DRM_FORMAT_NV16
:
3773 case DRM_FORMAT_NV61
:
3774 case DRM_FORMAT_YUV422
:
3775 case DRM_FORMAT_YVU422
:
3776 case DRM_FORMAT_YUV420
:
3777 case DRM_FORMAT_YVU420
:
3783 EXPORT_SYMBOL(drm_format_horz_chroma_subsampling
);
3786 * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor
3787 * @format: pixel format (DRM_FORMAT_*)
3790 * The vertical chroma subsampling factor for the
3791 * specified pixel format.
3793 int drm_format_vert_chroma_subsampling(uint32_t format
)
3796 case DRM_FORMAT_YUV410
:
3797 case DRM_FORMAT_YVU410
:
3799 case DRM_FORMAT_YUV420
:
3800 case DRM_FORMAT_YVU420
:
3801 case DRM_FORMAT_NV12
:
3802 case DRM_FORMAT_NV21
:
3808 EXPORT_SYMBOL(drm_format_vert_chroma_subsampling
);
3811 * drm_mode_config_init - initialize DRM mode_configuration structure
3814 * Initialize @dev's mode_config structure, used for tracking the graphics
3815 * configuration of @dev.
3817 * Since this initializes the modeset locks, no locking is possible. Which is no
3818 * problem, since this should happen single threaded at init time. It is the
3819 * driver's problem to ensure this guarantee.
3822 void drm_mode_config_init(struct drm_device
*dev
)
3824 mutex_init(&dev
->mode_config
.mutex
);
3825 mutex_init(&dev
->mode_config
.idr_mutex
);
3826 mutex_init(&dev
->mode_config
.fb_lock
);
3827 INIT_LIST_HEAD(&dev
->mode_config
.fb_list
);
3828 INIT_LIST_HEAD(&dev
->mode_config
.crtc_list
);
3829 INIT_LIST_HEAD(&dev
->mode_config
.connector_list
);
3830 INIT_LIST_HEAD(&dev
->mode_config
.encoder_list
);
3831 INIT_LIST_HEAD(&dev
->mode_config
.property_list
);
3832 INIT_LIST_HEAD(&dev
->mode_config
.property_blob_list
);
3833 INIT_LIST_HEAD(&dev
->mode_config
.plane_list
);
3834 idr_init(&dev
->mode_config
.crtc_idr
);
3836 drm_modeset_lock_all(dev
);
3837 drm_mode_create_standard_connector_properties(dev
);
3838 drm_modeset_unlock_all(dev
);
3840 /* Just to be sure */
3841 dev
->mode_config
.num_fb
= 0;
3842 dev
->mode_config
.num_connector
= 0;
3843 dev
->mode_config
.num_crtc
= 0;
3844 dev
->mode_config
.num_encoder
= 0;
3846 EXPORT_SYMBOL(drm_mode_config_init
);
3849 * drm_mode_config_cleanup - free up DRM mode_config info
3852 * Free up all the connectors and CRTCs associated with this DRM device, then
3853 * free up the framebuffers and associated buffer objects.
3855 * Note that since this /should/ happen single-threaded at driver/device
3856 * teardown time, no locking is required. It's the driver's job to ensure that
3857 * this guarantee actually holds true.
3859 * FIXME: cleanup any dangling user buffer objects too
3861 void drm_mode_config_cleanup(struct drm_device
*dev
)
3863 struct drm_connector
*connector
, *ot
;
3864 struct drm_crtc
*crtc
, *ct
;
3865 struct drm_encoder
*encoder
, *enct
;
3866 struct drm_framebuffer
*fb
, *fbt
;
3867 struct drm_property
*property
, *pt
;
3868 struct drm_property_blob
*blob
, *bt
;
3869 struct drm_plane
*plane
, *plt
;
3871 list_for_each_entry_safe(encoder
, enct
, &dev
->mode_config
.encoder_list
,
3873 encoder
->funcs
->destroy(encoder
);
3876 list_for_each_entry_safe(connector
, ot
,
3877 &dev
->mode_config
.connector_list
, head
) {
3878 connector
->funcs
->destroy(connector
);
3881 list_for_each_entry_safe(property
, pt
, &dev
->mode_config
.property_list
,
3883 drm_property_destroy(dev
, property
);
3886 list_for_each_entry_safe(blob
, bt
, &dev
->mode_config
.property_blob_list
,
3888 drm_property_destroy_blob(dev
, blob
);
3892 * Single-threaded teardown context, so it's not required to grab the
3893 * fb_lock to protect against concurrent fb_list access. Contrary, it
3894 * would actually deadlock with the drm_framebuffer_cleanup function.
3896 * Also, if there are any framebuffers left, that's a driver leak now,
3897 * so politely WARN about this.
3899 WARN_ON(!list_empty(&dev
->mode_config
.fb_list
));
3900 list_for_each_entry_safe(fb
, fbt
, &dev
->mode_config
.fb_list
, head
) {
3901 drm_framebuffer_remove(fb
);
3904 list_for_each_entry_safe(plane
, plt
, &dev
->mode_config
.plane_list
,
3906 plane
->funcs
->destroy(plane
);
3909 list_for_each_entry_safe(crtc
, ct
, &dev
->mode_config
.crtc_list
, head
) {
3910 crtc
->funcs
->destroy(crtc
);
3913 idr_destroy(&dev
->mode_config
.crtc_idr
);
3915 EXPORT_SYMBOL(drm_mode_config_cleanup
);