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
) {
596 drm_plane_force_disable(plane
);
598 drm_modeset_unlock_all(dev
);
601 drm_framebuffer_unreference(fb
);
603 EXPORT_SYMBOL(drm_framebuffer_remove
);
606 * drm_crtc_init - Initialise a new CRTC object
608 * @crtc: CRTC object to init
609 * @funcs: callbacks for the new CRTC
611 * Inits a new object created as base part of a driver crtc object.
614 * Zero on success, error code on failure.
616 int drm_crtc_init(struct drm_device
*dev
, struct drm_crtc
*crtc
,
617 const struct drm_crtc_funcs
*funcs
)
623 crtc
->invert_dimensions
= false;
625 drm_modeset_lock_all(dev
);
626 mutex_init(&crtc
->mutex
);
627 mutex_lock_nest_lock(&crtc
->mutex
, &dev
->mode_config
.mutex
);
629 ret
= drm_mode_object_get(dev
, &crtc
->base
, DRM_MODE_OBJECT_CRTC
);
633 crtc
->base
.properties
= &crtc
->properties
;
635 list_add_tail(&crtc
->head
, &dev
->mode_config
.crtc_list
);
636 dev
->mode_config
.num_crtc
++;
639 drm_modeset_unlock_all(dev
);
643 EXPORT_SYMBOL(drm_crtc_init
);
646 * drm_crtc_cleanup - Clean up the core crtc usage
647 * @crtc: CRTC to cleanup
649 * This function cleans up @crtc and removes it from the DRM mode setting
650 * core. Note that the function does *not* free the crtc structure itself,
651 * this is the responsibility of the caller.
653 void drm_crtc_cleanup(struct drm_crtc
*crtc
)
655 struct drm_device
*dev
= crtc
->dev
;
657 kfree(crtc
->gamma_store
);
658 crtc
->gamma_store
= NULL
;
660 drm_mode_object_put(dev
, &crtc
->base
);
661 list_del(&crtc
->head
);
662 dev
->mode_config
.num_crtc
--;
664 EXPORT_SYMBOL(drm_crtc_cleanup
);
667 * drm_mode_probed_add - add a mode to a connector's probed mode list
668 * @connector: connector the new mode
671 * Add @mode to @connector's mode list for later use.
673 void drm_mode_probed_add(struct drm_connector
*connector
,
674 struct drm_display_mode
*mode
)
676 list_add_tail(&mode
->head
, &connector
->probed_modes
);
678 EXPORT_SYMBOL(drm_mode_probed_add
);
681 * drm_mode_remove - remove and free a mode
682 * @connector: connector list to modify
683 * @mode: mode to remove
685 * Remove @mode from @connector's mode list, then free it.
687 void drm_mode_remove(struct drm_connector
*connector
,
688 struct drm_display_mode
*mode
)
690 list_del(&mode
->head
);
691 drm_mode_destroy(connector
->dev
, mode
);
693 EXPORT_SYMBOL(drm_mode_remove
);
696 * drm_connector_init - Init a preallocated connector
698 * @connector: the connector to init
699 * @funcs: callbacks for this connector
700 * @connector_type: user visible type of the connector
702 * Initialises a preallocated connector. Connectors should be
703 * subclassed as part of driver connector objects.
706 * Zero on success, error code on failure.
708 int drm_connector_init(struct drm_device
*dev
,
709 struct drm_connector
*connector
,
710 const struct drm_connector_funcs
*funcs
,
715 drm_modeset_lock_all(dev
);
717 ret
= drm_mode_object_get(dev
, &connector
->base
, DRM_MODE_OBJECT_CONNECTOR
);
721 connector
->base
.properties
= &connector
->properties
;
722 connector
->dev
= dev
;
723 connector
->funcs
= funcs
;
724 connector
->connector_type
= connector_type
;
725 connector
->connector_type_id
=
726 ++drm_connector_enum_list
[connector_type
].count
; /* TODO */
727 INIT_LIST_HEAD(&connector
->probed_modes
);
728 INIT_LIST_HEAD(&connector
->modes
);
729 connector
->edid_blob_ptr
= NULL
;
730 connector
->status
= connector_status_unknown
;
732 list_add_tail(&connector
->head
, &dev
->mode_config
.connector_list
);
733 dev
->mode_config
.num_connector
++;
735 if (connector_type
!= DRM_MODE_CONNECTOR_VIRTUAL
)
736 drm_object_attach_property(&connector
->base
,
737 dev
->mode_config
.edid_property
,
740 drm_object_attach_property(&connector
->base
,
741 dev
->mode_config
.dpms_property
, 0);
744 drm_modeset_unlock_all(dev
);
748 EXPORT_SYMBOL(drm_connector_init
);
751 * drm_connector_cleanup - cleans up an initialised connector
752 * @connector: connector to cleanup
754 * Cleans up the connector but doesn't free the object.
756 void drm_connector_cleanup(struct drm_connector
*connector
)
758 struct drm_device
*dev
= connector
->dev
;
759 struct drm_display_mode
*mode
, *t
;
761 list_for_each_entry_safe(mode
, t
, &connector
->probed_modes
, head
)
762 drm_mode_remove(connector
, mode
);
764 list_for_each_entry_safe(mode
, t
, &connector
->modes
, head
)
765 drm_mode_remove(connector
, mode
);
767 drm_mode_object_put(dev
, &connector
->base
);
768 list_del(&connector
->head
);
769 dev
->mode_config
.num_connector
--;
771 EXPORT_SYMBOL(drm_connector_cleanup
);
773 void drm_connector_unplug_all(struct drm_device
*dev
)
775 struct drm_connector
*connector
;
777 /* taking the mode config mutex ends up in a clash with sysfs */
778 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
)
779 drm_sysfs_connector_remove(connector
);
782 EXPORT_SYMBOL(drm_connector_unplug_all
);
784 int drm_encoder_init(struct drm_device
*dev
,
785 struct drm_encoder
*encoder
,
786 const struct drm_encoder_funcs
*funcs
,
791 drm_modeset_lock_all(dev
);
793 ret
= drm_mode_object_get(dev
, &encoder
->base
, DRM_MODE_OBJECT_ENCODER
);
798 encoder
->encoder_type
= encoder_type
;
799 encoder
->funcs
= funcs
;
801 list_add_tail(&encoder
->head
, &dev
->mode_config
.encoder_list
);
802 dev
->mode_config
.num_encoder
++;
805 drm_modeset_unlock_all(dev
);
809 EXPORT_SYMBOL(drm_encoder_init
);
811 void drm_encoder_cleanup(struct drm_encoder
*encoder
)
813 struct drm_device
*dev
= encoder
->dev
;
814 drm_modeset_lock_all(dev
);
815 drm_mode_object_put(dev
, &encoder
->base
);
816 list_del(&encoder
->head
);
817 dev
->mode_config
.num_encoder
--;
818 drm_modeset_unlock_all(dev
);
820 EXPORT_SYMBOL(drm_encoder_cleanup
);
822 int drm_plane_init(struct drm_device
*dev
, struct drm_plane
*plane
,
823 unsigned long possible_crtcs
,
824 const struct drm_plane_funcs
*funcs
,
825 const uint32_t *formats
, uint32_t format_count
,
830 drm_modeset_lock_all(dev
);
832 ret
= drm_mode_object_get(dev
, &plane
->base
, DRM_MODE_OBJECT_PLANE
);
836 plane
->base
.properties
= &plane
->properties
;
838 plane
->funcs
= funcs
;
839 plane
->format_types
= kmalloc(sizeof(uint32_t) * format_count
,
841 if (!plane
->format_types
) {
842 DRM_DEBUG_KMS("out of memory when allocating plane\n");
843 drm_mode_object_put(dev
, &plane
->base
);
848 memcpy(plane
->format_types
, formats
, format_count
* sizeof(uint32_t));
849 plane
->format_count
= format_count
;
850 plane
->possible_crtcs
= possible_crtcs
;
852 /* private planes are not exposed to userspace, but depending on
853 * display hardware, might be convenient to allow sharing programming
854 * for the scanout engine with the crtc implementation.
857 list_add_tail(&plane
->head
, &dev
->mode_config
.plane_list
);
858 dev
->mode_config
.num_plane
++;
860 INIT_LIST_HEAD(&plane
->head
);
864 drm_modeset_unlock_all(dev
);
868 EXPORT_SYMBOL(drm_plane_init
);
870 void drm_plane_cleanup(struct drm_plane
*plane
)
872 struct drm_device
*dev
= plane
->dev
;
874 drm_modeset_lock_all(dev
);
875 kfree(plane
->format_types
);
876 drm_mode_object_put(dev
, &plane
->base
);
877 /* if not added to a list, it must be a private plane */
878 if (!list_empty(&plane
->head
)) {
879 list_del(&plane
->head
);
880 dev
->mode_config
.num_plane
--;
882 drm_modeset_unlock_all(dev
);
884 EXPORT_SYMBOL(drm_plane_cleanup
);
886 void drm_plane_force_disable(struct drm_plane
*plane
)
893 ret
= plane
->funcs
->disable_plane(plane
);
895 DRM_ERROR("failed to disable plane with busy fb\n");
896 /* disconnect the plane from the fb and crtc: */
897 __drm_framebuffer_unreference(plane
->fb
);
901 EXPORT_SYMBOL(drm_plane_force_disable
);
904 * drm_mode_create - create a new display mode
907 * Create a new drm_display_mode, give it an ID, and return it.
910 * Pointer to new mode on success, NULL on error.
912 struct drm_display_mode
*drm_mode_create(struct drm_device
*dev
)
914 struct drm_display_mode
*nmode
;
916 nmode
= kzalloc(sizeof(struct drm_display_mode
), GFP_KERNEL
);
920 if (drm_mode_object_get(dev
, &nmode
->base
, DRM_MODE_OBJECT_MODE
)) {
927 EXPORT_SYMBOL(drm_mode_create
);
930 * drm_mode_destroy - remove a mode
932 * @mode: mode to remove
934 * Free @mode's unique identifier, then free it.
936 void drm_mode_destroy(struct drm_device
*dev
, struct drm_display_mode
*mode
)
941 drm_mode_object_put(dev
, &mode
->base
);
945 EXPORT_SYMBOL(drm_mode_destroy
);
947 static int drm_mode_create_standard_connector_properties(struct drm_device
*dev
)
949 struct drm_property
*edid
;
950 struct drm_property
*dpms
;
953 * Standard properties (apply to all connectors)
955 edid
= drm_property_create(dev
, DRM_MODE_PROP_BLOB
|
956 DRM_MODE_PROP_IMMUTABLE
,
958 dev
->mode_config
.edid_property
= edid
;
960 dpms
= drm_property_create_enum(dev
, 0,
961 "DPMS", drm_dpms_enum_list
,
962 ARRAY_SIZE(drm_dpms_enum_list
));
963 dev
->mode_config
.dpms_property
= dpms
;
969 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
972 * Called by a driver the first time a DVI-I connector is made.
974 int drm_mode_create_dvi_i_properties(struct drm_device
*dev
)
976 struct drm_property
*dvi_i_selector
;
977 struct drm_property
*dvi_i_subconnector
;
979 if (dev
->mode_config
.dvi_i_select_subconnector_property
)
983 drm_property_create_enum(dev
, 0,
984 "select subconnector",
985 drm_dvi_i_select_enum_list
,
986 ARRAY_SIZE(drm_dvi_i_select_enum_list
));
987 dev
->mode_config
.dvi_i_select_subconnector_property
= dvi_i_selector
;
989 dvi_i_subconnector
= drm_property_create_enum(dev
, DRM_MODE_PROP_IMMUTABLE
,
991 drm_dvi_i_subconnector_enum_list
,
992 ARRAY_SIZE(drm_dvi_i_subconnector_enum_list
));
993 dev
->mode_config
.dvi_i_subconnector_property
= dvi_i_subconnector
;
997 EXPORT_SYMBOL(drm_mode_create_dvi_i_properties
);
1000 * drm_create_tv_properties - create TV specific connector properties
1002 * @num_modes: number of different TV formats (modes) supported
1003 * @modes: array of pointers to strings containing name of each format
1005 * Called by a driver's TV initialization routine, this function creates
1006 * the TV specific connector properties for a given device. Caller is
1007 * responsible for allocating a list of format names and passing them to
1010 int drm_mode_create_tv_properties(struct drm_device
*dev
, int num_modes
,
1013 struct drm_property
*tv_selector
;
1014 struct drm_property
*tv_subconnector
;
1017 if (dev
->mode_config
.tv_select_subconnector_property
)
1021 * Basic connector properties
1023 tv_selector
= drm_property_create_enum(dev
, 0,
1024 "select subconnector",
1025 drm_tv_select_enum_list
,
1026 ARRAY_SIZE(drm_tv_select_enum_list
));
1027 dev
->mode_config
.tv_select_subconnector_property
= tv_selector
;
1030 drm_property_create_enum(dev
, DRM_MODE_PROP_IMMUTABLE
,
1032 drm_tv_subconnector_enum_list
,
1033 ARRAY_SIZE(drm_tv_subconnector_enum_list
));
1034 dev
->mode_config
.tv_subconnector_property
= tv_subconnector
;
1037 * Other, TV specific properties: margins & TV modes.
1039 dev
->mode_config
.tv_left_margin_property
=
1040 drm_property_create_range(dev
, 0, "left margin", 0, 100);
1042 dev
->mode_config
.tv_right_margin_property
=
1043 drm_property_create_range(dev
, 0, "right margin", 0, 100);
1045 dev
->mode_config
.tv_top_margin_property
=
1046 drm_property_create_range(dev
, 0, "top margin", 0, 100);
1048 dev
->mode_config
.tv_bottom_margin_property
=
1049 drm_property_create_range(dev
, 0, "bottom margin", 0, 100);
1051 dev
->mode_config
.tv_mode_property
=
1052 drm_property_create(dev
, DRM_MODE_PROP_ENUM
,
1054 for (i
= 0; i
< num_modes
; i
++)
1055 drm_property_add_enum(dev
->mode_config
.tv_mode_property
, i
,
1058 dev
->mode_config
.tv_brightness_property
=
1059 drm_property_create_range(dev
, 0, "brightness", 0, 100);
1061 dev
->mode_config
.tv_contrast_property
=
1062 drm_property_create_range(dev
, 0, "contrast", 0, 100);
1064 dev
->mode_config
.tv_flicker_reduction_property
=
1065 drm_property_create_range(dev
, 0, "flicker reduction", 0, 100);
1067 dev
->mode_config
.tv_overscan_property
=
1068 drm_property_create_range(dev
, 0, "overscan", 0, 100);
1070 dev
->mode_config
.tv_saturation_property
=
1071 drm_property_create_range(dev
, 0, "saturation", 0, 100);
1073 dev
->mode_config
.tv_hue_property
=
1074 drm_property_create_range(dev
, 0, "hue", 0, 100);
1078 EXPORT_SYMBOL(drm_mode_create_tv_properties
);
1081 * drm_mode_create_scaling_mode_property - create scaling mode property
1084 * Called by a driver the first time it's needed, must be attached to desired
1087 int drm_mode_create_scaling_mode_property(struct drm_device
*dev
)
1089 struct drm_property
*scaling_mode
;
1091 if (dev
->mode_config
.scaling_mode_property
)
1095 drm_property_create_enum(dev
, 0, "scaling mode",
1096 drm_scaling_mode_enum_list
,
1097 ARRAY_SIZE(drm_scaling_mode_enum_list
));
1099 dev
->mode_config
.scaling_mode_property
= scaling_mode
;
1103 EXPORT_SYMBOL(drm_mode_create_scaling_mode_property
);
1106 * drm_mode_create_dithering_property - create dithering property
1109 * Called by a driver the first time it's needed, must be attached to desired
1112 int drm_mode_create_dithering_property(struct drm_device
*dev
)
1114 struct drm_property
*dithering_mode
;
1116 if (dev
->mode_config
.dithering_mode_property
)
1120 drm_property_create_enum(dev
, 0, "dithering",
1121 drm_dithering_mode_enum_list
,
1122 ARRAY_SIZE(drm_dithering_mode_enum_list
));
1123 dev
->mode_config
.dithering_mode_property
= dithering_mode
;
1127 EXPORT_SYMBOL(drm_mode_create_dithering_property
);
1130 * drm_mode_create_dirty_property - create dirty property
1133 * Called by a driver the first time it's needed, must be attached to desired
1136 int drm_mode_create_dirty_info_property(struct drm_device
*dev
)
1138 struct drm_property
*dirty_info
;
1140 if (dev
->mode_config
.dirty_info_property
)
1144 drm_property_create_enum(dev
, DRM_MODE_PROP_IMMUTABLE
,
1146 drm_dirty_info_enum_list
,
1147 ARRAY_SIZE(drm_dirty_info_enum_list
));
1148 dev
->mode_config
.dirty_info_property
= dirty_info
;
1152 EXPORT_SYMBOL(drm_mode_create_dirty_info_property
);
1154 static int drm_mode_group_init(struct drm_device
*dev
, struct drm_mode_group
*group
)
1156 uint32_t total_objects
= 0;
1158 total_objects
+= dev
->mode_config
.num_crtc
;
1159 total_objects
+= dev
->mode_config
.num_connector
;
1160 total_objects
+= dev
->mode_config
.num_encoder
;
1162 group
->id_list
= kzalloc(total_objects
* sizeof(uint32_t), GFP_KERNEL
);
1163 if (!group
->id_list
)
1166 group
->num_crtcs
= 0;
1167 group
->num_connectors
= 0;
1168 group
->num_encoders
= 0;
1172 int drm_mode_group_init_legacy_group(struct drm_device
*dev
,
1173 struct drm_mode_group
*group
)
1175 struct drm_crtc
*crtc
;
1176 struct drm_encoder
*encoder
;
1177 struct drm_connector
*connector
;
1180 if ((ret
= drm_mode_group_init(dev
, group
)))
1183 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
)
1184 group
->id_list
[group
->num_crtcs
++] = crtc
->base
.id
;
1186 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
)
1187 group
->id_list
[group
->num_crtcs
+ group
->num_encoders
++] =
1190 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
)
1191 group
->id_list
[group
->num_crtcs
+ group
->num_encoders
+
1192 group
->num_connectors
++] = connector
->base
.id
;
1196 EXPORT_SYMBOL(drm_mode_group_init_legacy_group
);
1199 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
1200 * @out: drm_mode_modeinfo struct to return to the user
1201 * @in: drm_display_mode to use
1203 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
1206 static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo
*out
,
1207 const struct drm_display_mode
*in
)
1209 WARN(in
->hdisplay
> USHRT_MAX
|| in
->hsync_start
> USHRT_MAX
||
1210 in
->hsync_end
> USHRT_MAX
|| in
->htotal
> USHRT_MAX
||
1211 in
->hskew
> USHRT_MAX
|| in
->vdisplay
> USHRT_MAX
||
1212 in
->vsync_start
> USHRT_MAX
|| in
->vsync_end
> USHRT_MAX
||
1213 in
->vtotal
> USHRT_MAX
|| in
->vscan
> USHRT_MAX
,
1214 "timing values too large for mode info\n");
1216 out
->clock
= in
->clock
;
1217 out
->hdisplay
= in
->hdisplay
;
1218 out
->hsync_start
= in
->hsync_start
;
1219 out
->hsync_end
= in
->hsync_end
;
1220 out
->htotal
= in
->htotal
;
1221 out
->hskew
= in
->hskew
;
1222 out
->vdisplay
= in
->vdisplay
;
1223 out
->vsync_start
= in
->vsync_start
;
1224 out
->vsync_end
= in
->vsync_end
;
1225 out
->vtotal
= in
->vtotal
;
1226 out
->vscan
= in
->vscan
;
1227 out
->vrefresh
= in
->vrefresh
;
1228 out
->flags
= in
->flags
;
1229 out
->type
= in
->type
;
1230 strncpy(out
->name
, in
->name
, DRM_DISPLAY_MODE_LEN
);
1231 out
->name
[DRM_DISPLAY_MODE_LEN
-1] = 0;
1235 * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
1236 * @out: drm_display_mode to return to the user
1237 * @in: drm_mode_modeinfo to use
1239 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
1243 * Zero on success, errno on failure.
1245 static int drm_crtc_convert_umode(struct drm_display_mode
*out
,
1246 const struct drm_mode_modeinfo
*in
)
1248 if (in
->clock
> INT_MAX
|| in
->vrefresh
> INT_MAX
)
1251 out
->clock
= in
->clock
;
1252 out
->hdisplay
= in
->hdisplay
;
1253 out
->hsync_start
= in
->hsync_start
;
1254 out
->hsync_end
= in
->hsync_end
;
1255 out
->htotal
= in
->htotal
;
1256 out
->hskew
= in
->hskew
;
1257 out
->vdisplay
= in
->vdisplay
;
1258 out
->vsync_start
= in
->vsync_start
;
1259 out
->vsync_end
= in
->vsync_end
;
1260 out
->vtotal
= in
->vtotal
;
1261 out
->vscan
= in
->vscan
;
1262 out
->vrefresh
= in
->vrefresh
;
1263 out
->flags
= in
->flags
;
1264 out
->type
= in
->type
;
1265 strncpy(out
->name
, in
->name
, DRM_DISPLAY_MODE_LEN
);
1266 out
->name
[DRM_DISPLAY_MODE_LEN
-1] = 0;
1272 * drm_mode_getresources - get graphics configuration
1273 * @dev: drm device for the ioctl
1274 * @data: data pointer for the ioctl
1275 * @file_priv: drm file for the ioctl call
1277 * Construct a set of configuration description structures and return
1278 * them to the user, including CRTC, connector and framebuffer configuration.
1280 * Called by the user via ioctl.
1283 * Zero on success, errno on failure.
1285 int drm_mode_getresources(struct drm_device
*dev
, void *data
,
1286 struct drm_file
*file_priv
)
1288 struct drm_mode_card_res
*card_res
= data
;
1289 struct list_head
*lh
;
1290 struct drm_framebuffer
*fb
;
1291 struct drm_connector
*connector
;
1292 struct drm_crtc
*crtc
;
1293 struct drm_encoder
*encoder
;
1295 int connector_count
= 0;
1298 int encoder_count
= 0;
1300 uint32_t __user
*fb_id
;
1301 uint32_t __user
*crtc_id
;
1302 uint32_t __user
*connector_id
;
1303 uint32_t __user
*encoder_id
;
1304 struct drm_mode_group
*mode_group
;
1306 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
1310 mutex_lock(&file_priv
->fbs_lock
);
1312 * For the non-control nodes we need to limit the list of resources
1313 * by IDs in the group list for this node
1315 list_for_each(lh
, &file_priv
->fbs
)
1318 /* handle this in 4 parts */
1320 if (card_res
->count_fbs
>= fb_count
) {
1322 fb_id
= (uint32_t __user
*)(unsigned long)card_res
->fb_id_ptr
;
1323 list_for_each_entry(fb
, &file_priv
->fbs
, filp_head
) {
1324 if (put_user(fb
->base
.id
, fb_id
+ copied
)) {
1325 mutex_unlock(&file_priv
->fbs_lock
);
1331 card_res
->count_fbs
= fb_count
;
1332 mutex_unlock(&file_priv
->fbs_lock
);
1334 drm_modeset_lock_all(dev
);
1335 mode_group
= &file_priv
->master
->minor
->mode_group
;
1336 if (file_priv
->master
->minor
->type
== DRM_MINOR_CONTROL
) {
1338 list_for_each(lh
, &dev
->mode_config
.crtc_list
)
1341 list_for_each(lh
, &dev
->mode_config
.connector_list
)
1344 list_for_each(lh
, &dev
->mode_config
.encoder_list
)
1348 crtc_count
= mode_group
->num_crtcs
;
1349 connector_count
= mode_group
->num_connectors
;
1350 encoder_count
= mode_group
->num_encoders
;
1353 card_res
->max_height
= dev
->mode_config
.max_height
;
1354 card_res
->min_height
= dev
->mode_config
.min_height
;
1355 card_res
->max_width
= dev
->mode_config
.max_width
;
1356 card_res
->min_width
= dev
->mode_config
.min_width
;
1359 if (card_res
->count_crtcs
>= crtc_count
) {
1361 crtc_id
= (uint32_t __user
*)(unsigned long)card_res
->crtc_id_ptr
;
1362 if (file_priv
->master
->minor
->type
== DRM_MINOR_CONTROL
) {
1363 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
,
1365 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc
->base
.id
);
1366 if (put_user(crtc
->base
.id
, crtc_id
+ copied
)) {
1373 for (i
= 0; i
< mode_group
->num_crtcs
; i
++) {
1374 if (put_user(mode_group
->id_list
[i
],
1375 crtc_id
+ copied
)) {
1383 card_res
->count_crtcs
= crtc_count
;
1386 if (card_res
->count_encoders
>= encoder_count
) {
1388 encoder_id
= (uint32_t __user
*)(unsigned long)card_res
->encoder_id_ptr
;
1389 if (file_priv
->master
->minor
->type
== DRM_MINOR_CONTROL
) {
1390 list_for_each_entry(encoder
,
1391 &dev
->mode_config
.encoder_list
,
1393 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder
->base
.id
,
1394 drm_get_encoder_name(encoder
));
1395 if (put_user(encoder
->base
.id
, encoder_id
+
1403 for (i
= mode_group
->num_crtcs
; i
< mode_group
->num_crtcs
+ mode_group
->num_encoders
; i
++) {
1404 if (put_user(mode_group
->id_list
[i
],
1405 encoder_id
+ copied
)) {
1414 card_res
->count_encoders
= encoder_count
;
1417 if (card_res
->count_connectors
>= connector_count
) {
1419 connector_id
= (uint32_t __user
*)(unsigned long)card_res
->connector_id_ptr
;
1420 if (file_priv
->master
->minor
->type
== DRM_MINOR_CONTROL
) {
1421 list_for_each_entry(connector
,
1422 &dev
->mode_config
.connector_list
,
1424 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1426 drm_get_connector_name(connector
));
1427 if (put_user(connector
->base
.id
,
1428 connector_id
+ copied
)) {
1435 int start
= mode_group
->num_crtcs
+
1436 mode_group
->num_encoders
;
1437 for (i
= start
; i
< start
+ mode_group
->num_connectors
; i
++) {
1438 if (put_user(mode_group
->id_list
[i
],
1439 connector_id
+ copied
)) {
1447 card_res
->count_connectors
= connector_count
;
1449 DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res
->count_crtcs
,
1450 card_res
->count_connectors
, card_res
->count_encoders
);
1453 drm_modeset_unlock_all(dev
);
1458 * drm_mode_getcrtc - get CRTC configuration
1459 * @dev: drm device for the ioctl
1460 * @data: data pointer for the ioctl
1461 * @file_priv: drm file for the ioctl call
1463 * Construct a CRTC configuration structure to return to the user.
1465 * Called by the user via ioctl.
1468 * Zero on success, errno on failure.
1470 int drm_mode_getcrtc(struct drm_device
*dev
,
1471 void *data
, struct drm_file
*file_priv
)
1473 struct drm_mode_crtc
*crtc_resp
= data
;
1474 struct drm_crtc
*crtc
;
1475 struct drm_mode_object
*obj
;
1478 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
1481 drm_modeset_lock_all(dev
);
1483 obj
= drm_mode_object_find(dev
, crtc_resp
->crtc_id
,
1484 DRM_MODE_OBJECT_CRTC
);
1489 crtc
= obj_to_crtc(obj
);
1491 crtc_resp
->x
= crtc
->x
;
1492 crtc_resp
->y
= crtc
->y
;
1493 crtc_resp
->gamma_size
= crtc
->gamma_size
;
1495 crtc_resp
->fb_id
= crtc
->fb
->base
.id
;
1497 crtc_resp
->fb_id
= 0;
1499 if (crtc
->enabled
) {
1501 drm_crtc_convert_to_umode(&crtc_resp
->mode
, &crtc
->mode
);
1502 crtc_resp
->mode_valid
= 1;
1505 crtc_resp
->mode_valid
= 0;
1509 drm_modeset_unlock_all(dev
);
1514 * drm_mode_getconnector - get connector configuration
1515 * @dev: drm device for the ioctl
1516 * @data: data pointer for the ioctl
1517 * @file_priv: drm file for the ioctl call
1519 * Construct a connector configuration structure to return to the user.
1521 * Called by the user via ioctl.
1524 * Zero on success, errno on failure.
1526 int drm_mode_getconnector(struct drm_device
*dev
, void *data
,
1527 struct drm_file
*file_priv
)
1529 struct drm_mode_get_connector
*out_resp
= data
;
1530 struct drm_mode_object
*obj
;
1531 struct drm_connector
*connector
;
1532 struct drm_display_mode
*mode
;
1534 int props_count
= 0;
1535 int encoders_count
= 0;
1539 struct drm_mode_modeinfo u_mode
;
1540 struct drm_mode_modeinfo __user
*mode_ptr
;
1541 uint32_t __user
*prop_ptr
;
1542 uint64_t __user
*prop_values
;
1543 uint32_t __user
*encoder_ptr
;
1545 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
1548 memset(&u_mode
, 0, sizeof(struct drm_mode_modeinfo
));
1550 DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp
->connector_id
);
1552 mutex_lock(&dev
->mode_config
.mutex
);
1554 obj
= drm_mode_object_find(dev
, out_resp
->connector_id
,
1555 DRM_MODE_OBJECT_CONNECTOR
);
1560 connector
= obj_to_connector(obj
);
1562 props_count
= connector
->properties
.count
;
1564 for (i
= 0; i
< DRM_CONNECTOR_MAX_ENCODER
; i
++) {
1565 if (connector
->encoder_ids
[i
] != 0) {
1570 if (out_resp
->count_modes
== 0) {
1571 connector
->funcs
->fill_modes(connector
,
1572 dev
->mode_config
.max_width
,
1573 dev
->mode_config
.max_height
);
1576 /* delayed so we get modes regardless of pre-fill_modes state */
1577 list_for_each_entry(mode
, &connector
->modes
, head
)
1580 out_resp
->connector_id
= connector
->base
.id
;
1581 out_resp
->connector_type
= connector
->connector_type
;
1582 out_resp
->connector_type_id
= connector
->connector_type_id
;
1583 out_resp
->mm_width
= connector
->display_info
.width_mm
;
1584 out_resp
->mm_height
= connector
->display_info
.height_mm
;
1585 out_resp
->subpixel
= connector
->display_info
.subpixel_order
;
1586 out_resp
->connection
= connector
->status
;
1587 if (connector
->encoder
)
1588 out_resp
->encoder_id
= connector
->encoder
->base
.id
;
1590 out_resp
->encoder_id
= 0;
1593 * This ioctl is called twice, once to determine how much space is
1594 * needed, and the 2nd time to fill it.
1596 if ((out_resp
->count_modes
>= mode_count
) && mode_count
) {
1598 mode_ptr
= (struct drm_mode_modeinfo __user
*)(unsigned long)out_resp
->modes_ptr
;
1599 list_for_each_entry(mode
, &connector
->modes
, head
) {
1600 drm_crtc_convert_to_umode(&u_mode
, mode
);
1601 if (copy_to_user(mode_ptr
+ copied
,
1602 &u_mode
, sizeof(u_mode
))) {
1609 out_resp
->count_modes
= mode_count
;
1611 if ((out_resp
->count_props
>= props_count
) && props_count
) {
1613 prop_ptr
= (uint32_t __user
*)(unsigned long)(out_resp
->props_ptr
);
1614 prop_values
= (uint64_t __user
*)(unsigned long)(out_resp
->prop_values_ptr
);
1615 for (i
= 0; i
< connector
->properties
.count
; i
++) {
1616 if (put_user(connector
->properties
.ids
[i
],
1617 prop_ptr
+ copied
)) {
1622 if (put_user(connector
->properties
.values
[i
],
1623 prop_values
+ copied
)) {
1630 out_resp
->count_props
= props_count
;
1632 if ((out_resp
->count_encoders
>= encoders_count
) && encoders_count
) {
1634 encoder_ptr
= (uint32_t __user
*)(unsigned long)(out_resp
->encoders_ptr
);
1635 for (i
= 0; i
< DRM_CONNECTOR_MAX_ENCODER
; i
++) {
1636 if (connector
->encoder_ids
[i
] != 0) {
1637 if (put_user(connector
->encoder_ids
[i
],
1638 encoder_ptr
+ copied
)) {
1646 out_resp
->count_encoders
= encoders_count
;
1649 mutex_unlock(&dev
->mode_config
.mutex
);
1654 int drm_mode_getencoder(struct drm_device
*dev
, void *data
,
1655 struct drm_file
*file_priv
)
1657 struct drm_mode_get_encoder
*enc_resp
= data
;
1658 struct drm_mode_object
*obj
;
1659 struct drm_encoder
*encoder
;
1662 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
1665 drm_modeset_lock_all(dev
);
1666 obj
= drm_mode_object_find(dev
, enc_resp
->encoder_id
,
1667 DRM_MODE_OBJECT_ENCODER
);
1672 encoder
= obj_to_encoder(obj
);
1675 enc_resp
->crtc_id
= encoder
->crtc
->base
.id
;
1677 enc_resp
->crtc_id
= 0;
1678 enc_resp
->encoder_type
= encoder
->encoder_type
;
1679 enc_resp
->encoder_id
= encoder
->base
.id
;
1680 enc_resp
->possible_crtcs
= encoder
->possible_crtcs
;
1681 enc_resp
->possible_clones
= encoder
->possible_clones
;
1684 drm_modeset_unlock_all(dev
);
1689 * drm_mode_getplane_res - get plane info
1692 * @file_priv: DRM file info
1694 * Return an plane count and set of IDs.
1696 int drm_mode_getplane_res(struct drm_device
*dev
, void *data
,
1697 struct drm_file
*file_priv
)
1699 struct drm_mode_get_plane_res
*plane_resp
= data
;
1700 struct drm_mode_config
*config
;
1701 struct drm_plane
*plane
;
1702 uint32_t __user
*plane_ptr
;
1703 int copied
= 0, ret
= 0;
1705 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
1708 drm_modeset_lock_all(dev
);
1709 config
= &dev
->mode_config
;
1712 * This ioctl is called twice, once to determine how much space is
1713 * needed, and the 2nd time to fill it.
1715 if (config
->num_plane
&&
1716 (plane_resp
->count_planes
>= config
->num_plane
)) {
1717 plane_ptr
= (uint32_t __user
*)(unsigned long)plane_resp
->plane_id_ptr
;
1719 list_for_each_entry(plane
, &config
->plane_list
, head
) {
1720 if (put_user(plane
->base
.id
, plane_ptr
+ copied
)) {
1727 plane_resp
->count_planes
= config
->num_plane
;
1730 drm_modeset_unlock_all(dev
);
1735 * drm_mode_getplane - get plane info
1738 * @file_priv: DRM file info
1740 * Return plane info, including formats supported, gamma size, any
1743 int drm_mode_getplane(struct drm_device
*dev
, void *data
,
1744 struct drm_file
*file_priv
)
1746 struct drm_mode_get_plane
*plane_resp
= data
;
1747 struct drm_mode_object
*obj
;
1748 struct drm_plane
*plane
;
1749 uint32_t __user
*format_ptr
;
1752 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
1755 drm_modeset_lock_all(dev
);
1756 obj
= drm_mode_object_find(dev
, plane_resp
->plane_id
,
1757 DRM_MODE_OBJECT_PLANE
);
1762 plane
= obj_to_plane(obj
);
1765 plane_resp
->crtc_id
= plane
->crtc
->base
.id
;
1767 plane_resp
->crtc_id
= 0;
1770 plane_resp
->fb_id
= plane
->fb
->base
.id
;
1772 plane_resp
->fb_id
= 0;
1774 plane_resp
->plane_id
= plane
->base
.id
;
1775 plane_resp
->possible_crtcs
= plane
->possible_crtcs
;
1776 plane_resp
->gamma_size
= plane
->gamma_size
;
1779 * This ioctl is called twice, once to determine how much space is
1780 * needed, and the 2nd time to fill it.
1782 if (plane
->format_count
&&
1783 (plane_resp
->count_format_types
>= plane
->format_count
)) {
1784 format_ptr
= (uint32_t __user
*)(unsigned long)plane_resp
->format_type_ptr
;
1785 if (copy_to_user(format_ptr
,
1786 plane
->format_types
,
1787 sizeof(uint32_t) * plane
->format_count
)) {
1792 plane_resp
->count_format_types
= plane
->format_count
;
1795 drm_modeset_unlock_all(dev
);
1800 * drm_mode_setplane - set up or tear down an plane
1802 * @data: ioctl data*
1803 * @file_priv: DRM file info
1805 * Set plane info, including placement, fb, scaling, and other factors.
1806 * Or pass a NULL fb to disable.
1808 int drm_mode_setplane(struct drm_device
*dev
, void *data
,
1809 struct drm_file
*file_priv
)
1811 struct drm_mode_set_plane
*plane_req
= data
;
1812 struct drm_mode_object
*obj
;
1813 struct drm_plane
*plane
;
1814 struct drm_crtc
*crtc
;
1815 struct drm_framebuffer
*fb
= NULL
, *old_fb
= NULL
;
1817 unsigned int fb_width
, fb_height
;
1820 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
1824 * First, find the plane, crtc, and fb objects. If not available,
1825 * we don't bother to call the driver.
1827 obj
= drm_mode_object_find(dev
, plane_req
->plane_id
,
1828 DRM_MODE_OBJECT_PLANE
);
1830 DRM_DEBUG_KMS("Unknown plane ID %d\n",
1831 plane_req
->plane_id
);
1834 plane
= obj_to_plane(obj
);
1836 /* No fb means shut it down */
1837 if (!plane_req
->fb_id
) {
1838 drm_modeset_lock_all(dev
);
1840 plane
->funcs
->disable_plane(plane
);
1843 drm_modeset_unlock_all(dev
);
1847 obj
= drm_mode_object_find(dev
, plane_req
->crtc_id
,
1848 DRM_MODE_OBJECT_CRTC
);
1850 DRM_DEBUG_KMS("Unknown crtc ID %d\n",
1851 plane_req
->crtc_id
);
1855 crtc
= obj_to_crtc(obj
);
1857 fb
= drm_framebuffer_lookup(dev
, plane_req
->fb_id
);
1859 DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
1865 /* Check whether this plane supports the fb pixel format. */
1866 for (i
= 0; i
< plane
->format_count
; i
++)
1867 if (fb
->pixel_format
== plane
->format_types
[i
])
1869 if (i
== plane
->format_count
) {
1870 DRM_DEBUG_KMS("Invalid pixel format %s\n",
1871 drm_get_format_name(fb
->pixel_format
));
1876 fb_width
= fb
->width
<< 16;
1877 fb_height
= fb
->height
<< 16;
1879 /* Make sure source coordinates are inside the fb. */
1880 if (plane_req
->src_w
> fb_width
||
1881 plane_req
->src_x
> fb_width
- plane_req
->src_w
||
1882 plane_req
->src_h
> fb_height
||
1883 plane_req
->src_y
> fb_height
- plane_req
->src_h
) {
1884 DRM_DEBUG_KMS("Invalid source coordinates "
1885 "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
1886 plane_req
->src_w
>> 16,
1887 ((plane_req
->src_w
& 0xffff) * 15625) >> 10,
1888 plane_req
->src_h
>> 16,
1889 ((plane_req
->src_h
& 0xffff) * 15625) >> 10,
1890 plane_req
->src_x
>> 16,
1891 ((plane_req
->src_x
& 0xffff) * 15625) >> 10,
1892 plane_req
->src_y
>> 16,
1893 ((plane_req
->src_y
& 0xffff) * 15625) >> 10);
1898 /* Give drivers some help against integer overflows */
1899 if (plane_req
->crtc_w
> INT_MAX
||
1900 plane_req
->crtc_x
> INT_MAX
- (int32_t) plane_req
->crtc_w
||
1901 plane_req
->crtc_h
> INT_MAX
||
1902 plane_req
->crtc_y
> INT_MAX
- (int32_t) plane_req
->crtc_h
) {
1903 DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
1904 plane_req
->crtc_w
, plane_req
->crtc_h
,
1905 plane_req
->crtc_x
, plane_req
->crtc_y
);
1910 drm_modeset_lock_all(dev
);
1911 ret
= plane
->funcs
->update_plane(plane
, crtc
, fb
,
1912 plane_req
->crtc_x
, plane_req
->crtc_y
,
1913 plane_req
->crtc_w
, plane_req
->crtc_h
,
1914 plane_req
->src_x
, plane_req
->src_y
,
1915 plane_req
->src_w
, plane_req
->src_h
);
1922 drm_modeset_unlock_all(dev
);
1926 drm_framebuffer_unreference(fb
);
1928 drm_framebuffer_unreference(old_fb
);
1934 * drm_mode_set_config_internal - helper to call ->set_config
1935 * @set: modeset config to set
1937 * This is a little helper to wrap internal calls to the ->set_config driver
1938 * interface. The only thing it adds is correct refcounting dance.
1940 int drm_mode_set_config_internal(struct drm_mode_set
*set
)
1942 struct drm_crtc
*crtc
= set
->crtc
;
1943 struct drm_framebuffer
*fb
, *old_fb
;
1949 ret
= crtc
->funcs
->set_config(set
);
1952 drm_framebuffer_unreference(old_fb
);
1954 drm_framebuffer_reference(fb
);
1959 EXPORT_SYMBOL(drm_mode_set_config_internal
);
1962 * drm_mode_setcrtc - set CRTC configuration
1963 * @dev: drm device for the ioctl
1964 * @data: data pointer for the ioctl
1965 * @file_priv: drm file for the ioctl call
1967 * Build a new CRTC configuration based on user request.
1969 * Called by the user via ioctl.
1972 * Zero on success, errno on failure.
1974 int drm_mode_setcrtc(struct drm_device
*dev
, void *data
,
1975 struct drm_file
*file_priv
)
1977 struct drm_mode_config
*config
= &dev
->mode_config
;
1978 struct drm_mode_crtc
*crtc_req
= data
;
1979 struct drm_mode_object
*obj
;
1980 struct drm_crtc
*crtc
;
1981 struct drm_connector
**connector_set
= NULL
, *connector
;
1982 struct drm_framebuffer
*fb
= NULL
;
1983 struct drm_display_mode
*mode
= NULL
;
1984 struct drm_mode_set set
;
1985 uint32_t __user
*set_connectors_ptr
;
1989 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
1992 /* For some reason crtc x/y offsets are signed internally. */
1993 if (crtc_req
->x
> INT_MAX
|| crtc_req
->y
> INT_MAX
)
1996 drm_modeset_lock_all(dev
);
1997 obj
= drm_mode_object_find(dev
, crtc_req
->crtc_id
,
1998 DRM_MODE_OBJECT_CRTC
);
2000 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req
->crtc_id
);
2004 crtc
= obj_to_crtc(obj
);
2005 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc
->base
.id
);
2007 if (crtc_req
->mode_valid
) {
2008 int hdisplay
, vdisplay
;
2009 /* If we have a mode we need a framebuffer. */
2010 /* If we pass -1, set the mode with the currently bound fb */
2011 if (crtc_req
->fb_id
== -1) {
2013 DRM_DEBUG_KMS("CRTC doesn't have current FB\n");
2018 /* Make refcounting symmetric with the lookup path. */
2019 drm_framebuffer_reference(fb
);
2021 fb
= drm_framebuffer_lookup(dev
, crtc_req
->fb_id
);
2023 DRM_DEBUG_KMS("Unknown FB ID%d\n",
2030 mode
= drm_mode_create(dev
);
2036 ret
= drm_crtc_convert_umode(mode
, &crtc_req
->mode
);
2038 DRM_DEBUG_KMS("Invalid mode\n");
2042 drm_mode_set_crtcinfo(mode
, CRTC_INTERLACE_HALVE_V
);
2044 hdisplay
= mode
->hdisplay
;
2045 vdisplay
= mode
->vdisplay
;
2047 if (crtc
->invert_dimensions
)
2048 swap(hdisplay
, vdisplay
);
2050 if (hdisplay
> fb
->width
||
2051 vdisplay
> fb
->height
||
2052 crtc_req
->x
> fb
->width
- hdisplay
||
2053 crtc_req
->y
> fb
->height
- vdisplay
) {
2054 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
2055 fb
->width
, fb
->height
,
2056 hdisplay
, vdisplay
, crtc_req
->x
, crtc_req
->y
,
2057 crtc
->invert_dimensions
? " (inverted)" : "");
2063 if (crtc_req
->count_connectors
== 0 && mode
) {
2064 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
2069 if (crtc_req
->count_connectors
> 0 && (!mode
|| !fb
)) {
2070 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
2071 crtc_req
->count_connectors
);
2076 if (crtc_req
->count_connectors
> 0) {
2079 /* Avoid unbounded kernel memory allocation */
2080 if (crtc_req
->count_connectors
> config
->num_connector
) {
2085 connector_set
= kmalloc(crtc_req
->count_connectors
*
2086 sizeof(struct drm_connector
*),
2088 if (!connector_set
) {
2093 for (i
= 0; i
< crtc_req
->count_connectors
; i
++) {
2094 set_connectors_ptr
= (uint32_t __user
*)(unsigned long)crtc_req
->set_connectors_ptr
;
2095 if (get_user(out_id
, &set_connectors_ptr
[i
])) {
2100 obj
= drm_mode_object_find(dev
, out_id
,
2101 DRM_MODE_OBJECT_CONNECTOR
);
2103 DRM_DEBUG_KMS("Connector id %d unknown\n",
2108 connector
= obj_to_connector(obj
);
2109 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
2111 drm_get_connector_name(connector
));
2113 connector_set
[i
] = connector
;
2118 set
.x
= crtc_req
->x
;
2119 set
.y
= crtc_req
->y
;
2121 set
.connectors
= connector_set
;
2122 set
.num_connectors
= crtc_req
->count_connectors
;
2124 ret
= drm_mode_set_config_internal(&set
);
2128 drm_framebuffer_unreference(fb
);
2130 kfree(connector_set
);
2131 drm_mode_destroy(dev
, mode
);
2132 drm_modeset_unlock_all(dev
);
2136 int drm_mode_cursor_ioctl(struct drm_device
*dev
,
2137 void *data
, struct drm_file
*file_priv
)
2139 struct drm_mode_cursor
*req
= data
;
2140 struct drm_mode_object
*obj
;
2141 struct drm_crtc
*crtc
;
2144 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2147 if (!req
->flags
|| (~DRM_MODE_CURSOR_FLAGS
& req
->flags
))
2150 obj
= drm_mode_object_find(dev
, req
->crtc_id
, DRM_MODE_OBJECT_CRTC
);
2152 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req
->crtc_id
);
2155 crtc
= obj_to_crtc(obj
);
2157 mutex_lock(&crtc
->mutex
);
2158 if (req
->flags
& DRM_MODE_CURSOR_BO
) {
2159 if (!crtc
->funcs
->cursor_set
) {
2163 /* Turns off the cursor if handle is 0 */
2164 ret
= crtc
->funcs
->cursor_set(crtc
, file_priv
, req
->handle
,
2165 req
->width
, req
->height
);
2168 if (req
->flags
& DRM_MODE_CURSOR_MOVE
) {
2169 if (crtc
->funcs
->cursor_move
) {
2170 ret
= crtc
->funcs
->cursor_move(crtc
, req
->x
, req
->y
);
2177 mutex_unlock(&crtc
->mutex
);
2182 /* Original addfb only supported RGB formats, so figure out which one */
2183 uint32_t drm_mode_legacy_fb_format(uint32_t bpp
, uint32_t depth
)
2189 fmt
= DRM_FORMAT_C8
;
2193 fmt
= DRM_FORMAT_XRGB1555
;
2195 fmt
= DRM_FORMAT_RGB565
;
2198 fmt
= DRM_FORMAT_RGB888
;
2202 fmt
= DRM_FORMAT_XRGB8888
;
2203 else if (depth
== 30)
2204 fmt
= DRM_FORMAT_XRGB2101010
;
2206 fmt
= DRM_FORMAT_ARGB8888
;
2209 DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n");
2210 fmt
= DRM_FORMAT_XRGB8888
;
2216 EXPORT_SYMBOL(drm_mode_legacy_fb_format
);
2219 * drm_mode_addfb - add an FB to the graphics configuration
2220 * @dev: drm device for the ioctl
2221 * @data: data pointer for the ioctl
2222 * @file_priv: drm file for the ioctl call
2224 * Add a new FB to the specified CRTC, given a user request.
2226 * Called by the user via ioctl.
2229 * Zero on success, errno on failure.
2231 int drm_mode_addfb(struct drm_device
*dev
,
2232 void *data
, struct drm_file
*file_priv
)
2234 struct drm_mode_fb_cmd
*or = data
;
2235 struct drm_mode_fb_cmd2 r
= {};
2236 struct drm_mode_config
*config
= &dev
->mode_config
;
2237 struct drm_framebuffer
*fb
;
2240 /* Use new struct with format internally */
2241 r
.fb_id
= or->fb_id
;
2242 r
.width
= or->width
;
2243 r
.height
= or->height
;
2244 r
.pitches
[0] = or->pitch
;
2245 r
.pixel_format
= drm_mode_legacy_fb_format(or->bpp
, or->depth
);
2246 r
.handles
[0] = or->handle
;
2248 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2251 if ((config
->min_width
> r
.width
) || (r
.width
> config
->max_width
))
2254 if ((config
->min_height
> r
.height
) || (r
.height
> config
->max_height
))
2257 fb
= dev
->mode_config
.funcs
->fb_create(dev
, file_priv
, &r
);
2259 DRM_DEBUG_KMS("could not create framebuffer\n");
2263 mutex_lock(&file_priv
->fbs_lock
);
2264 or->fb_id
= fb
->base
.id
;
2265 list_add(&fb
->filp_head
, &file_priv
->fbs
);
2266 DRM_DEBUG_KMS("[FB:%d]\n", fb
->base
.id
);
2267 mutex_unlock(&file_priv
->fbs_lock
);
2272 static int format_check(const struct drm_mode_fb_cmd2
*r
)
2274 uint32_t format
= r
->pixel_format
& ~DRM_FORMAT_BIG_ENDIAN
;
2278 case DRM_FORMAT_RGB332
:
2279 case DRM_FORMAT_BGR233
:
2280 case DRM_FORMAT_XRGB4444
:
2281 case DRM_FORMAT_XBGR4444
:
2282 case DRM_FORMAT_RGBX4444
:
2283 case DRM_FORMAT_BGRX4444
:
2284 case DRM_FORMAT_ARGB4444
:
2285 case DRM_FORMAT_ABGR4444
:
2286 case DRM_FORMAT_RGBA4444
:
2287 case DRM_FORMAT_BGRA4444
:
2288 case DRM_FORMAT_XRGB1555
:
2289 case DRM_FORMAT_XBGR1555
:
2290 case DRM_FORMAT_RGBX5551
:
2291 case DRM_FORMAT_BGRX5551
:
2292 case DRM_FORMAT_ARGB1555
:
2293 case DRM_FORMAT_ABGR1555
:
2294 case DRM_FORMAT_RGBA5551
:
2295 case DRM_FORMAT_BGRA5551
:
2296 case DRM_FORMAT_RGB565
:
2297 case DRM_FORMAT_BGR565
:
2298 case DRM_FORMAT_RGB888
:
2299 case DRM_FORMAT_BGR888
:
2300 case DRM_FORMAT_XRGB8888
:
2301 case DRM_FORMAT_XBGR8888
:
2302 case DRM_FORMAT_RGBX8888
:
2303 case DRM_FORMAT_BGRX8888
:
2304 case DRM_FORMAT_ARGB8888
:
2305 case DRM_FORMAT_ABGR8888
:
2306 case DRM_FORMAT_RGBA8888
:
2307 case DRM_FORMAT_BGRA8888
:
2308 case DRM_FORMAT_XRGB2101010
:
2309 case DRM_FORMAT_XBGR2101010
:
2310 case DRM_FORMAT_RGBX1010102
:
2311 case DRM_FORMAT_BGRX1010102
:
2312 case DRM_FORMAT_ARGB2101010
:
2313 case DRM_FORMAT_ABGR2101010
:
2314 case DRM_FORMAT_RGBA1010102
:
2315 case DRM_FORMAT_BGRA1010102
:
2316 case DRM_FORMAT_YUYV
:
2317 case DRM_FORMAT_YVYU
:
2318 case DRM_FORMAT_UYVY
:
2319 case DRM_FORMAT_VYUY
:
2320 case DRM_FORMAT_AYUV
:
2321 case DRM_FORMAT_NV12
:
2322 case DRM_FORMAT_NV21
:
2323 case DRM_FORMAT_NV16
:
2324 case DRM_FORMAT_NV61
:
2325 case DRM_FORMAT_NV24
:
2326 case DRM_FORMAT_NV42
:
2327 case DRM_FORMAT_YUV410
:
2328 case DRM_FORMAT_YVU410
:
2329 case DRM_FORMAT_YUV411
:
2330 case DRM_FORMAT_YVU411
:
2331 case DRM_FORMAT_YUV420
:
2332 case DRM_FORMAT_YVU420
:
2333 case DRM_FORMAT_YUV422
:
2334 case DRM_FORMAT_YVU422
:
2335 case DRM_FORMAT_YUV444
:
2336 case DRM_FORMAT_YVU444
:
2343 static int framebuffer_check(const struct drm_mode_fb_cmd2
*r
)
2345 int ret
, hsub
, vsub
, num_planes
, i
;
2347 ret
= format_check(r
);
2349 DRM_DEBUG_KMS("bad framebuffer format %s\n",
2350 drm_get_format_name(r
->pixel_format
));
2354 hsub
= drm_format_horz_chroma_subsampling(r
->pixel_format
);
2355 vsub
= drm_format_vert_chroma_subsampling(r
->pixel_format
);
2356 num_planes
= drm_format_num_planes(r
->pixel_format
);
2358 if (r
->width
== 0 || r
->width
% hsub
) {
2359 DRM_DEBUG_KMS("bad framebuffer width %u\n", r
->height
);
2363 if (r
->height
== 0 || r
->height
% vsub
) {
2364 DRM_DEBUG_KMS("bad framebuffer height %u\n", r
->height
);
2368 for (i
= 0; i
< num_planes
; i
++) {
2369 unsigned int width
= r
->width
/ (i
!= 0 ? hsub
: 1);
2370 unsigned int height
= r
->height
/ (i
!= 0 ? vsub
: 1);
2371 unsigned int cpp
= drm_format_plane_cpp(r
->pixel_format
, i
);
2373 if (!r
->handles
[i
]) {
2374 DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i
);
2378 if ((uint64_t) width
* cpp
> UINT_MAX
)
2381 if ((uint64_t) height
* r
->pitches
[i
] + r
->offsets
[i
] > UINT_MAX
)
2384 if (r
->pitches
[i
] < width
* cpp
) {
2385 DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r
->pitches
[i
], i
);
2394 * drm_mode_addfb2 - add an FB to the graphics configuration
2395 * @dev: drm device for the ioctl
2396 * @data: data pointer for the ioctl
2397 * @file_priv: drm file for the ioctl call
2399 * Add a new FB to the specified CRTC, given a user request with format.
2401 * Called by the user via ioctl.
2404 * Zero on success, errno on failure.
2406 int drm_mode_addfb2(struct drm_device
*dev
,
2407 void *data
, struct drm_file
*file_priv
)
2409 struct drm_mode_fb_cmd2
*r
= data
;
2410 struct drm_mode_config
*config
= &dev
->mode_config
;
2411 struct drm_framebuffer
*fb
;
2414 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2417 if (r
->flags
& ~DRM_MODE_FB_INTERLACED
) {
2418 DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r
->flags
);
2422 if ((config
->min_width
> r
->width
) || (r
->width
> config
->max_width
)) {
2423 DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n",
2424 r
->width
, config
->min_width
, config
->max_width
);
2427 if ((config
->min_height
> r
->height
) || (r
->height
> config
->max_height
)) {
2428 DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n",
2429 r
->height
, config
->min_height
, config
->max_height
);
2433 ret
= framebuffer_check(r
);
2437 fb
= dev
->mode_config
.funcs
->fb_create(dev
, file_priv
, r
);
2439 DRM_DEBUG_KMS("could not create framebuffer\n");
2443 mutex_lock(&file_priv
->fbs_lock
);
2444 r
->fb_id
= fb
->base
.id
;
2445 list_add(&fb
->filp_head
, &file_priv
->fbs
);
2446 DRM_DEBUG_KMS("[FB:%d]\n", fb
->base
.id
);
2447 mutex_unlock(&file_priv
->fbs_lock
);
2454 * drm_mode_rmfb - remove an FB from the configuration
2455 * @dev: drm device for the ioctl
2456 * @data: data pointer for the ioctl
2457 * @file_priv: drm file for the ioctl call
2459 * Remove the FB specified by the user.
2461 * Called by the user via ioctl.
2464 * Zero on success, errno on failure.
2466 int drm_mode_rmfb(struct drm_device
*dev
,
2467 void *data
, struct drm_file
*file_priv
)
2469 struct drm_framebuffer
*fb
= NULL
;
2470 struct drm_framebuffer
*fbl
= NULL
;
2471 uint32_t *id
= data
;
2474 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2477 mutex_lock(&file_priv
->fbs_lock
);
2478 mutex_lock(&dev
->mode_config
.fb_lock
);
2479 fb
= __drm_framebuffer_lookup(dev
, *id
);
2483 list_for_each_entry(fbl
, &file_priv
->fbs
, filp_head
)
2489 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
2490 __drm_framebuffer_unregister(dev
, fb
);
2492 list_del_init(&fb
->filp_head
);
2493 mutex_unlock(&dev
->mode_config
.fb_lock
);
2494 mutex_unlock(&file_priv
->fbs_lock
);
2496 drm_framebuffer_remove(fb
);
2501 mutex_unlock(&dev
->mode_config
.fb_lock
);
2502 mutex_unlock(&file_priv
->fbs_lock
);
2508 * drm_mode_getfb - get FB info
2509 * @dev: drm device for the ioctl
2510 * @data: data pointer for the ioctl
2511 * @file_priv: drm file for the ioctl call
2513 * Lookup the FB given its ID and return info about it.
2515 * Called by the user via ioctl.
2518 * Zero on success, errno on failure.
2520 int drm_mode_getfb(struct drm_device
*dev
,
2521 void *data
, struct drm_file
*file_priv
)
2523 struct drm_mode_fb_cmd
*r
= data
;
2524 struct drm_framebuffer
*fb
;
2527 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2530 fb
= drm_framebuffer_lookup(dev
, r
->fb_id
);
2534 r
->height
= fb
->height
;
2535 r
->width
= fb
->width
;
2536 r
->depth
= fb
->depth
;
2537 r
->bpp
= fb
->bits_per_pixel
;
2538 r
->pitch
= fb
->pitches
[0];
2539 if (fb
->funcs
->create_handle
)
2540 ret
= fb
->funcs
->create_handle(fb
, file_priv
, &r
->handle
);
2544 drm_framebuffer_unreference(fb
);
2549 int drm_mode_dirtyfb_ioctl(struct drm_device
*dev
,
2550 void *data
, struct drm_file
*file_priv
)
2552 struct drm_clip_rect __user
*clips_ptr
;
2553 struct drm_clip_rect
*clips
= NULL
;
2554 struct drm_mode_fb_dirty_cmd
*r
= data
;
2555 struct drm_framebuffer
*fb
;
2560 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2563 fb
= drm_framebuffer_lookup(dev
, r
->fb_id
);
2567 num_clips
= r
->num_clips
;
2568 clips_ptr
= (struct drm_clip_rect __user
*)(unsigned long)r
->clips_ptr
;
2570 if (!num_clips
!= !clips_ptr
) {
2575 flags
= DRM_MODE_FB_DIRTY_FLAGS
& r
->flags
;
2577 /* If userspace annotates copy, clips must come in pairs */
2578 if (flags
& DRM_MODE_FB_DIRTY_ANNOTATE_COPY
&& (num_clips
% 2)) {
2583 if (num_clips
&& clips_ptr
) {
2584 if (num_clips
< 0 || num_clips
> DRM_MODE_FB_DIRTY_MAX_CLIPS
) {
2588 clips
= kzalloc(num_clips
* sizeof(*clips
), GFP_KERNEL
);
2594 ret
= copy_from_user(clips
, clips_ptr
,
2595 num_clips
* sizeof(*clips
));
2602 if (fb
->funcs
->dirty
) {
2603 drm_modeset_lock_all(dev
);
2604 ret
= fb
->funcs
->dirty(fb
, file_priv
, flags
, r
->color
,
2606 drm_modeset_unlock_all(dev
);
2614 drm_framebuffer_unreference(fb
);
2621 * drm_fb_release - remove and free the FBs on this file
2622 * @priv: drm file for the ioctl
2624 * Destroy all the FBs associated with @filp.
2626 * Called by the user via ioctl.
2629 * Zero on success, errno on failure.
2631 void drm_fb_release(struct drm_file
*priv
)
2633 struct drm_device
*dev
= priv
->minor
->dev
;
2634 struct drm_framebuffer
*fb
, *tfb
;
2636 mutex_lock(&priv
->fbs_lock
);
2637 list_for_each_entry_safe(fb
, tfb
, &priv
->fbs
, filp_head
) {
2639 mutex_lock(&dev
->mode_config
.fb_lock
);
2640 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
2641 __drm_framebuffer_unregister(dev
, fb
);
2642 mutex_unlock(&dev
->mode_config
.fb_lock
);
2644 list_del_init(&fb
->filp_head
);
2646 /* This will also drop the fpriv->fbs reference. */
2647 drm_framebuffer_remove(fb
);
2649 mutex_unlock(&priv
->fbs_lock
);
2652 struct drm_property
*drm_property_create(struct drm_device
*dev
, int flags
,
2653 const char *name
, int num_values
)
2655 struct drm_property
*property
= NULL
;
2658 property
= kzalloc(sizeof(struct drm_property
), GFP_KERNEL
);
2663 property
->values
= kzalloc(sizeof(uint64_t)*num_values
, GFP_KERNEL
);
2664 if (!property
->values
)
2668 ret
= drm_mode_object_get(dev
, &property
->base
, DRM_MODE_OBJECT_PROPERTY
);
2672 property
->flags
= flags
;
2673 property
->num_values
= num_values
;
2674 INIT_LIST_HEAD(&property
->enum_blob_list
);
2677 strncpy(property
->name
, name
, DRM_PROP_NAME_LEN
);
2678 property
->name
[DRM_PROP_NAME_LEN
-1] = '\0';
2681 list_add_tail(&property
->head
, &dev
->mode_config
.property_list
);
2684 kfree(property
->values
);
2688 EXPORT_SYMBOL(drm_property_create
);
2690 struct drm_property
*drm_property_create_enum(struct drm_device
*dev
, int flags
,
2692 const struct drm_prop_enum_list
*props
,
2695 struct drm_property
*property
;
2698 flags
|= DRM_MODE_PROP_ENUM
;
2700 property
= drm_property_create(dev
, flags
, name
, num_values
);
2704 for (i
= 0; i
< num_values
; i
++) {
2705 ret
= drm_property_add_enum(property
, i
,
2709 drm_property_destroy(dev
, property
);
2716 EXPORT_SYMBOL(drm_property_create_enum
);
2718 struct drm_property
*drm_property_create_bitmask(struct drm_device
*dev
,
2719 int flags
, const char *name
,
2720 const struct drm_prop_enum_list
*props
,
2723 struct drm_property
*property
;
2726 flags
|= DRM_MODE_PROP_BITMASK
;
2728 property
= drm_property_create(dev
, flags
, name
, num_values
);
2732 for (i
= 0; i
< num_values
; i
++) {
2733 ret
= drm_property_add_enum(property
, i
,
2737 drm_property_destroy(dev
, property
);
2744 EXPORT_SYMBOL(drm_property_create_bitmask
);
2746 struct drm_property
*drm_property_create_range(struct drm_device
*dev
, int flags
,
2748 uint64_t min
, uint64_t max
)
2750 struct drm_property
*property
;
2752 flags
|= DRM_MODE_PROP_RANGE
;
2754 property
= drm_property_create(dev
, flags
, name
, 2);
2758 property
->values
[0] = min
;
2759 property
->values
[1] = max
;
2763 EXPORT_SYMBOL(drm_property_create_range
);
2765 int drm_property_add_enum(struct drm_property
*property
, int index
,
2766 uint64_t value
, const char *name
)
2768 struct drm_property_enum
*prop_enum
;
2770 if (!(property
->flags
& (DRM_MODE_PROP_ENUM
| DRM_MODE_PROP_BITMASK
)))
2774 * Bitmask enum properties have the additional constraint of values
2777 if ((property
->flags
& DRM_MODE_PROP_BITMASK
) && (value
> 63))
2780 if (!list_empty(&property
->enum_blob_list
)) {
2781 list_for_each_entry(prop_enum
, &property
->enum_blob_list
, head
) {
2782 if (prop_enum
->value
== value
) {
2783 strncpy(prop_enum
->name
, name
, DRM_PROP_NAME_LEN
);
2784 prop_enum
->name
[DRM_PROP_NAME_LEN
-1] = '\0';
2790 prop_enum
= kzalloc(sizeof(struct drm_property_enum
), GFP_KERNEL
);
2794 strncpy(prop_enum
->name
, name
, DRM_PROP_NAME_LEN
);
2795 prop_enum
->name
[DRM_PROP_NAME_LEN
-1] = '\0';
2796 prop_enum
->value
= value
;
2798 property
->values
[index
] = value
;
2799 list_add_tail(&prop_enum
->head
, &property
->enum_blob_list
);
2802 EXPORT_SYMBOL(drm_property_add_enum
);
2804 void drm_property_destroy(struct drm_device
*dev
, struct drm_property
*property
)
2806 struct drm_property_enum
*prop_enum
, *pt
;
2808 list_for_each_entry_safe(prop_enum
, pt
, &property
->enum_blob_list
, head
) {
2809 list_del(&prop_enum
->head
);
2813 if (property
->num_values
)
2814 kfree(property
->values
);
2815 drm_mode_object_put(dev
, &property
->base
);
2816 list_del(&property
->head
);
2819 EXPORT_SYMBOL(drm_property_destroy
);
2821 void drm_object_attach_property(struct drm_mode_object
*obj
,
2822 struct drm_property
*property
,
2825 int count
= obj
->properties
->count
;
2827 if (count
== DRM_OBJECT_MAX_PROPERTY
) {
2828 WARN(1, "Failed to attach object property (type: 0x%x). Please "
2829 "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time "
2830 "you see this message on the same object type.\n",
2835 obj
->properties
->ids
[count
] = property
->base
.id
;
2836 obj
->properties
->values
[count
] = init_val
;
2837 obj
->properties
->count
++;
2839 EXPORT_SYMBOL(drm_object_attach_property
);
2841 int drm_object_property_set_value(struct drm_mode_object
*obj
,
2842 struct drm_property
*property
, uint64_t val
)
2846 for (i
= 0; i
< obj
->properties
->count
; i
++) {
2847 if (obj
->properties
->ids
[i
] == property
->base
.id
) {
2848 obj
->properties
->values
[i
] = val
;
2855 EXPORT_SYMBOL(drm_object_property_set_value
);
2857 int drm_object_property_get_value(struct drm_mode_object
*obj
,
2858 struct drm_property
*property
, uint64_t *val
)
2862 for (i
= 0; i
< obj
->properties
->count
; i
++) {
2863 if (obj
->properties
->ids
[i
] == property
->base
.id
) {
2864 *val
= obj
->properties
->values
[i
];
2871 EXPORT_SYMBOL(drm_object_property_get_value
);
2873 int drm_mode_getproperty_ioctl(struct drm_device
*dev
,
2874 void *data
, struct drm_file
*file_priv
)
2876 struct drm_mode_object
*obj
;
2877 struct drm_mode_get_property
*out_resp
= data
;
2878 struct drm_property
*property
;
2881 int value_count
= 0;
2884 struct drm_property_enum
*prop_enum
;
2885 struct drm_mode_property_enum __user
*enum_ptr
;
2886 struct drm_property_blob
*prop_blob
;
2887 uint32_t __user
*blob_id_ptr
;
2888 uint64_t __user
*values_ptr
;
2889 uint32_t __user
*blob_length_ptr
;
2891 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2894 drm_modeset_lock_all(dev
);
2895 obj
= drm_mode_object_find(dev
, out_resp
->prop_id
, DRM_MODE_OBJECT_PROPERTY
);
2900 property
= obj_to_property(obj
);
2902 if (property
->flags
& (DRM_MODE_PROP_ENUM
| DRM_MODE_PROP_BITMASK
)) {
2903 list_for_each_entry(prop_enum
, &property
->enum_blob_list
, head
)
2905 } else if (property
->flags
& DRM_MODE_PROP_BLOB
) {
2906 list_for_each_entry(prop_blob
, &property
->enum_blob_list
, head
)
2910 value_count
= property
->num_values
;
2912 strncpy(out_resp
->name
, property
->name
, DRM_PROP_NAME_LEN
);
2913 out_resp
->name
[DRM_PROP_NAME_LEN
-1] = 0;
2914 out_resp
->flags
= property
->flags
;
2916 if ((out_resp
->count_values
>= value_count
) && value_count
) {
2917 values_ptr
= (uint64_t __user
*)(unsigned long)out_resp
->values_ptr
;
2918 for (i
= 0; i
< value_count
; i
++) {
2919 if (copy_to_user(values_ptr
+ i
, &property
->values
[i
], sizeof(uint64_t))) {
2925 out_resp
->count_values
= value_count
;
2927 if (property
->flags
& (DRM_MODE_PROP_ENUM
| DRM_MODE_PROP_BITMASK
)) {
2928 if ((out_resp
->count_enum_blobs
>= enum_count
) && enum_count
) {
2930 enum_ptr
= (struct drm_mode_property_enum __user
*)(unsigned long)out_resp
->enum_blob_ptr
;
2931 list_for_each_entry(prop_enum
, &property
->enum_blob_list
, head
) {
2933 if (copy_to_user(&enum_ptr
[copied
].value
, &prop_enum
->value
, sizeof(uint64_t))) {
2938 if (copy_to_user(&enum_ptr
[copied
].name
,
2939 &prop_enum
->name
, DRM_PROP_NAME_LEN
)) {
2946 out_resp
->count_enum_blobs
= enum_count
;
2949 if (property
->flags
& DRM_MODE_PROP_BLOB
) {
2950 if ((out_resp
->count_enum_blobs
>= blob_count
) && blob_count
) {
2952 blob_id_ptr
= (uint32_t __user
*)(unsigned long)out_resp
->enum_blob_ptr
;
2953 blob_length_ptr
= (uint32_t __user
*)(unsigned long)out_resp
->values_ptr
;
2955 list_for_each_entry(prop_blob
, &property
->enum_blob_list
, head
) {
2956 if (put_user(prop_blob
->base
.id
, blob_id_ptr
+ copied
)) {
2961 if (put_user(prop_blob
->length
, blob_length_ptr
+ copied
)) {
2969 out_resp
->count_enum_blobs
= blob_count
;
2972 drm_modeset_unlock_all(dev
);
2976 static struct drm_property_blob
*drm_property_create_blob(struct drm_device
*dev
, int length
,
2979 struct drm_property_blob
*blob
;
2982 if (!length
|| !data
)
2985 blob
= kzalloc(sizeof(struct drm_property_blob
)+length
, GFP_KERNEL
);
2989 ret
= drm_mode_object_get(dev
, &blob
->base
, DRM_MODE_OBJECT_BLOB
);
2995 blob
->length
= length
;
2997 memcpy(blob
->data
, data
, length
);
2999 list_add_tail(&blob
->head
, &dev
->mode_config
.property_blob_list
);
3003 static void drm_property_destroy_blob(struct drm_device
*dev
,
3004 struct drm_property_blob
*blob
)
3006 drm_mode_object_put(dev
, &blob
->base
);
3007 list_del(&blob
->head
);
3011 int drm_mode_getblob_ioctl(struct drm_device
*dev
,
3012 void *data
, struct drm_file
*file_priv
)
3014 struct drm_mode_object
*obj
;
3015 struct drm_mode_get_blob
*out_resp
= data
;
3016 struct drm_property_blob
*blob
;
3018 void __user
*blob_ptr
;
3020 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
3023 drm_modeset_lock_all(dev
);
3024 obj
= drm_mode_object_find(dev
, out_resp
->blob_id
, DRM_MODE_OBJECT_BLOB
);
3029 blob
= obj_to_blob(obj
);
3031 if (out_resp
->length
== blob
->length
) {
3032 blob_ptr
= (void __user
*)(unsigned long)out_resp
->data
;
3033 if (copy_to_user(blob_ptr
, blob
->data
, blob
->length
)){
3038 out_resp
->length
= blob
->length
;
3041 drm_modeset_unlock_all(dev
);
3045 int drm_mode_connector_update_edid_property(struct drm_connector
*connector
,
3048 struct drm_device
*dev
= connector
->dev
;
3051 if (connector
->edid_blob_ptr
)
3052 drm_property_destroy_blob(dev
, connector
->edid_blob_ptr
);
3054 /* Delete edid, when there is none. */
3056 connector
->edid_blob_ptr
= NULL
;
3057 ret
= drm_object_property_set_value(&connector
->base
, dev
->mode_config
.edid_property
, 0);
3061 size
= EDID_LENGTH
* (1 + edid
->extensions
);
3062 connector
->edid_blob_ptr
= drm_property_create_blob(connector
->dev
,
3064 if (!connector
->edid_blob_ptr
)
3067 ret
= drm_object_property_set_value(&connector
->base
,
3068 dev
->mode_config
.edid_property
,
3069 connector
->edid_blob_ptr
->base
.id
);
3073 EXPORT_SYMBOL(drm_mode_connector_update_edid_property
);
3075 static bool drm_property_change_is_valid(struct drm_property
*property
,
3078 if (property
->flags
& DRM_MODE_PROP_IMMUTABLE
)
3080 if (property
->flags
& DRM_MODE_PROP_RANGE
) {
3081 if (value
< property
->values
[0] || value
> property
->values
[1])
3084 } else if (property
->flags
& DRM_MODE_PROP_BITMASK
) {
3086 uint64_t valid_mask
= 0;
3087 for (i
= 0; i
< property
->num_values
; i
++)
3088 valid_mask
|= (1ULL << property
->values
[i
]);
3089 return !(value
& ~valid_mask
);
3090 } else if (property
->flags
& DRM_MODE_PROP_BLOB
) {
3091 /* Only the driver knows */
3095 for (i
= 0; i
< property
->num_values
; i
++)
3096 if (property
->values
[i
] == value
)
3102 int drm_mode_connector_property_set_ioctl(struct drm_device
*dev
,
3103 void *data
, struct drm_file
*file_priv
)
3105 struct drm_mode_connector_set_property
*conn_set_prop
= data
;
3106 struct drm_mode_obj_set_property obj_set_prop
= {
3107 .value
= conn_set_prop
->value
,
3108 .prop_id
= conn_set_prop
->prop_id
,
3109 .obj_id
= conn_set_prop
->connector_id
,
3110 .obj_type
= DRM_MODE_OBJECT_CONNECTOR
3113 /* It does all the locking and checking we need */
3114 return drm_mode_obj_set_property_ioctl(dev
, &obj_set_prop
, file_priv
);
3117 static int drm_mode_connector_set_obj_prop(struct drm_mode_object
*obj
,
3118 struct drm_property
*property
,
3122 struct drm_connector
*connector
= obj_to_connector(obj
);
3124 /* Do DPMS ourselves */
3125 if (property
== connector
->dev
->mode_config
.dpms_property
) {
3126 if (connector
->funcs
->dpms
)
3127 (*connector
->funcs
->dpms
)(connector
, (int)value
);
3129 } else if (connector
->funcs
->set_property
)
3130 ret
= connector
->funcs
->set_property(connector
, property
, value
);
3132 /* store the property value if successful */
3134 drm_object_property_set_value(&connector
->base
, property
, value
);
3138 static int drm_mode_crtc_set_obj_prop(struct drm_mode_object
*obj
,
3139 struct drm_property
*property
,
3143 struct drm_crtc
*crtc
= obj_to_crtc(obj
);
3145 if (crtc
->funcs
->set_property
)
3146 ret
= crtc
->funcs
->set_property(crtc
, property
, value
);
3148 drm_object_property_set_value(obj
, property
, value
);
3153 static int drm_mode_plane_set_obj_prop(struct drm_mode_object
*obj
,
3154 struct drm_property
*property
,
3158 struct drm_plane
*plane
= obj_to_plane(obj
);
3160 if (plane
->funcs
->set_property
)
3161 ret
= plane
->funcs
->set_property(plane
, property
, value
);
3163 drm_object_property_set_value(obj
, property
, value
);
3168 int drm_mode_obj_get_properties_ioctl(struct drm_device
*dev
, void *data
,
3169 struct drm_file
*file_priv
)
3171 struct drm_mode_obj_get_properties
*arg
= data
;
3172 struct drm_mode_object
*obj
;
3176 int props_count
= 0;
3177 uint32_t __user
*props_ptr
;
3178 uint64_t __user
*prop_values_ptr
;
3180 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
3183 drm_modeset_lock_all(dev
);
3185 obj
= drm_mode_object_find(dev
, arg
->obj_id
, arg
->obj_type
);
3190 if (!obj
->properties
) {
3195 props_count
= obj
->properties
->count
;
3197 /* This ioctl is called twice, once to determine how much space is
3198 * needed, and the 2nd time to fill it. */
3199 if ((arg
->count_props
>= props_count
) && props_count
) {
3201 props_ptr
= (uint32_t __user
*)(unsigned long)(arg
->props_ptr
);
3202 prop_values_ptr
= (uint64_t __user
*)(unsigned long)
3203 (arg
->prop_values_ptr
);
3204 for (i
= 0; i
< props_count
; i
++) {
3205 if (put_user(obj
->properties
->ids
[i
],
3206 props_ptr
+ copied
)) {
3210 if (put_user(obj
->properties
->values
[i
],
3211 prop_values_ptr
+ copied
)) {
3218 arg
->count_props
= props_count
;
3220 drm_modeset_unlock_all(dev
);
3224 int drm_mode_obj_set_property_ioctl(struct drm_device
*dev
, void *data
,
3225 struct drm_file
*file_priv
)
3227 struct drm_mode_obj_set_property
*arg
= data
;
3228 struct drm_mode_object
*arg_obj
;
3229 struct drm_mode_object
*prop_obj
;
3230 struct drm_property
*property
;
3234 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
3237 drm_modeset_lock_all(dev
);
3239 arg_obj
= drm_mode_object_find(dev
, arg
->obj_id
, arg
->obj_type
);
3242 if (!arg_obj
->properties
)
3245 for (i
= 0; i
< arg_obj
->properties
->count
; i
++)
3246 if (arg_obj
->properties
->ids
[i
] == arg
->prop_id
)
3249 if (i
== arg_obj
->properties
->count
)
3252 prop_obj
= drm_mode_object_find(dev
, arg
->prop_id
,
3253 DRM_MODE_OBJECT_PROPERTY
);
3256 property
= obj_to_property(prop_obj
);
3258 if (!drm_property_change_is_valid(property
, arg
->value
))
3261 switch (arg_obj
->type
) {
3262 case DRM_MODE_OBJECT_CONNECTOR
:
3263 ret
= drm_mode_connector_set_obj_prop(arg_obj
, property
,
3266 case DRM_MODE_OBJECT_CRTC
:
3267 ret
= drm_mode_crtc_set_obj_prop(arg_obj
, property
, arg
->value
);
3269 case DRM_MODE_OBJECT_PLANE
:
3270 ret
= drm_mode_plane_set_obj_prop(arg_obj
, property
, arg
->value
);
3275 drm_modeset_unlock_all(dev
);
3279 int drm_mode_connector_attach_encoder(struct drm_connector
*connector
,
3280 struct drm_encoder
*encoder
)
3284 for (i
= 0; i
< DRM_CONNECTOR_MAX_ENCODER
; i
++) {
3285 if (connector
->encoder_ids
[i
] == 0) {
3286 connector
->encoder_ids
[i
] = encoder
->base
.id
;
3292 EXPORT_SYMBOL(drm_mode_connector_attach_encoder
);
3294 void drm_mode_connector_detach_encoder(struct drm_connector
*connector
,
3295 struct drm_encoder
*encoder
)
3298 for (i
= 0; i
< DRM_CONNECTOR_MAX_ENCODER
; i
++) {
3299 if (connector
->encoder_ids
[i
] == encoder
->base
.id
) {
3300 connector
->encoder_ids
[i
] = 0;
3301 if (connector
->encoder
== encoder
)
3302 connector
->encoder
= NULL
;
3307 EXPORT_SYMBOL(drm_mode_connector_detach_encoder
);
3309 int drm_mode_crtc_set_gamma_size(struct drm_crtc
*crtc
,
3312 crtc
->gamma_size
= gamma_size
;
3314 crtc
->gamma_store
= kzalloc(gamma_size
* sizeof(uint16_t) * 3, GFP_KERNEL
);
3315 if (!crtc
->gamma_store
) {
3316 crtc
->gamma_size
= 0;
3322 EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size
);
3324 int drm_mode_gamma_set_ioctl(struct drm_device
*dev
,
3325 void *data
, struct drm_file
*file_priv
)
3327 struct drm_mode_crtc_lut
*crtc_lut
= data
;
3328 struct drm_mode_object
*obj
;
3329 struct drm_crtc
*crtc
;
3330 void *r_base
, *g_base
, *b_base
;
3334 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
3337 drm_modeset_lock_all(dev
);
3338 obj
= drm_mode_object_find(dev
, crtc_lut
->crtc_id
, DRM_MODE_OBJECT_CRTC
);
3343 crtc
= obj_to_crtc(obj
);
3345 if (crtc
->funcs
->gamma_set
== NULL
) {
3350 /* memcpy into gamma store */
3351 if (crtc_lut
->gamma_size
!= crtc
->gamma_size
) {
3356 size
= crtc_lut
->gamma_size
* (sizeof(uint16_t));
3357 r_base
= crtc
->gamma_store
;
3358 if (copy_from_user(r_base
, (void __user
*)(unsigned long)crtc_lut
->red
, size
)) {
3363 g_base
= r_base
+ size
;
3364 if (copy_from_user(g_base
, (void __user
*)(unsigned long)crtc_lut
->green
, size
)) {
3369 b_base
= g_base
+ size
;
3370 if (copy_from_user(b_base
, (void __user
*)(unsigned long)crtc_lut
->blue
, size
)) {
3375 crtc
->funcs
->gamma_set(crtc
, r_base
, g_base
, b_base
, 0, crtc
->gamma_size
);
3378 drm_modeset_unlock_all(dev
);
3383 int drm_mode_gamma_get_ioctl(struct drm_device
*dev
,
3384 void *data
, struct drm_file
*file_priv
)
3386 struct drm_mode_crtc_lut
*crtc_lut
= data
;
3387 struct drm_mode_object
*obj
;
3388 struct drm_crtc
*crtc
;
3389 void *r_base
, *g_base
, *b_base
;
3393 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
3396 drm_modeset_lock_all(dev
);
3397 obj
= drm_mode_object_find(dev
, crtc_lut
->crtc_id
, DRM_MODE_OBJECT_CRTC
);
3402 crtc
= obj_to_crtc(obj
);
3404 /* memcpy into gamma store */
3405 if (crtc_lut
->gamma_size
!= crtc
->gamma_size
) {
3410 size
= crtc_lut
->gamma_size
* (sizeof(uint16_t));
3411 r_base
= crtc
->gamma_store
;
3412 if (copy_to_user((void __user
*)(unsigned long)crtc_lut
->red
, r_base
, size
)) {
3417 g_base
= r_base
+ size
;
3418 if (copy_to_user((void __user
*)(unsigned long)crtc_lut
->green
, g_base
, size
)) {
3423 b_base
= g_base
+ size
;
3424 if (copy_to_user((void __user
*)(unsigned long)crtc_lut
->blue
, b_base
, size
)) {
3429 drm_modeset_unlock_all(dev
);
3433 int drm_mode_page_flip_ioctl(struct drm_device
*dev
,
3434 void *data
, struct drm_file
*file_priv
)
3436 struct drm_mode_crtc_page_flip
*page_flip
= data
;
3437 struct drm_mode_object
*obj
;
3438 struct drm_crtc
*crtc
;
3439 struct drm_framebuffer
*fb
= NULL
, *old_fb
= NULL
;
3440 struct drm_pending_vblank_event
*e
= NULL
;
3441 unsigned long flags
;
3442 int hdisplay
, vdisplay
;
3445 if (page_flip
->flags
& ~DRM_MODE_PAGE_FLIP_FLAGS
||
3446 page_flip
->reserved
!= 0)
3449 obj
= drm_mode_object_find(dev
, page_flip
->crtc_id
, DRM_MODE_OBJECT_CRTC
);
3452 crtc
= obj_to_crtc(obj
);
3454 mutex_lock(&crtc
->mutex
);
3455 if (crtc
->fb
== NULL
) {
3456 /* The framebuffer is currently unbound, presumably
3457 * due to a hotplug event, that userspace has not
3464 if (crtc
->funcs
->page_flip
== NULL
)
3467 fb
= drm_framebuffer_lookup(dev
, page_flip
->fb_id
);
3471 hdisplay
= crtc
->mode
.hdisplay
;
3472 vdisplay
= crtc
->mode
.vdisplay
;
3474 if (crtc
->invert_dimensions
)
3475 swap(hdisplay
, vdisplay
);
3477 if (hdisplay
> fb
->width
||
3478 vdisplay
> fb
->height
||
3479 crtc
->x
> fb
->width
- hdisplay
||
3480 crtc
->y
> fb
->height
- vdisplay
) {
3481 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
3482 fb
->width
, fb
->height
, hdisplay
, vdisplay
, crtc
->x
, crtc
->y
,
3483 crtc
->invert_dimensions
? " (inverted)" : "");
3488 if (crtc
->fb
->pixel_format
!= fb
->pixel_format
) {
3489 DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n");
3494 if (page_flip
->flags
& DRM_MODE_PAGE_FLIP_EVENT
) {
3496 spin_lock_irqsave(&dev
->event_lock
, flags
);
3497 if (file_priv
->event_space
< sizeof e
->event
) {
3498 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
3501 file_priv
->event_space
-= sizeof e
->event
;
3502 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
3504 e
= kzalloc(sizeof *e
, GFP_KERNEL
);
3506 spin_lock_irqsave(&dev
->event_lock
, flags
);
3507 file_priv
->event_space
+= sizeof e
->event
;
3508 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
3512 e
->event
.base
.type
= DRM_EVENT_FLIP_COMPLETE
;
3513 e
->event
.base
.length
= sizeof e
->event
;
3514 e
->event
.user_data
= page_flip
->user_data
;
3515 e
->base
.event
= &e
->event
.base
;
3516 e
->base
.file_priv
= file_priv
;
3518 (void (*) (struct drm_pending_event
*)) kfree
;
3522 ret
= crtc
->funcs
->page_flip(crtc
, fb
, e
);
3524 if (page_flip
->flags
& DRM_MODE_PAGE_FLIP_EVENT
) {
3525 spin_lock_irqsave(&dev
->event_lock
, flags
);
3526 file_priv
->event_space
+= sizeof e
->event
;
3527 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
3530 /* Keep the old fb, don't unref it. */
3534 * Warn if the driver hasn't properly updated the crtc->fb
3535 * field to reflect that the new framebuffer is now used.
3536 * Failing to do so will screw with the reference counting
3539 WARN_ON(crtc
->fb
!= fb
);
3540 /* Unref only the old framebuffer. */
3546 drm_framebuffer_unreference(fb
);
3548 drm_framebuffer_unreference(old_fb
);
3549 mutex_unlock(&crtc
->mutex
);
3554 void drm_mode_config_reset(struct drm_device
*dev
)
3556 struct drm_crtc
*crtc
;
3557 struct drm_encoder
*encoder
;
3558 struct drm_connector
*connector
;
3560 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
)
3561 if (crtc
->funcs
->reset
)
3562 crtc
->funcs
->reset(crtc
);
3564 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
)
3565 if (encoder
->funcs
->reset
)
3566 encoder
->funcs
->reset(encoder
);
3568 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
3569 connector
->status
= connector_status_unknown
;
3571 if (connector
->funcs
->reset
)
3572 connector
->funcs
->reset(connector
);
3575 EXPORT_SYMBOL(drm_mode_config_reset
);
3577 int drm_mode_create_dumb_ioctl(struct drm_device
*dev
,
3578 void *data
, struct drm_file
*file_priv
)
3580 struct drm_mode_create_dumb
*args
= data
;
3582 if (!dev
->driver
->dumb_create
)
3584 return dev
->driver
->dumb_create(file_priv
, dev
, args
);
3587 int drm_mode_mmap_dumb_ioctl(struct drm_device
*dev
,
3588 void *data
, struct drm_file
*file_priv
)
3590 struct drm_mode_map_dumb
*args
= data
;
3592 /* call driver ioctl to get mmap offset */
3593 if (!dev
->driver
->dumb_map_offset
)
3596 return dev
->driver
->dumb_map_offset(file_priv
, dev
, args
->handle
, &args
->offset
);
3599 int drm_mode_destroy_dumb_ioctl(struct drm_device
*dev
,
3600 void *data
, struct drm_file
*file_priv
)
3602 struct drm_mode_destroy_dumb
*args
= data
;
3604 if (!dev
->driver
->dumb_destroy
)
3607 return dev
->driver
->dumb_destroy(file_priv
, dev
, args
->handle
);
3611 * Just need to support RGB formats here for compat with code that doesn't
3612 * use pixel formats directly yet.
3614 void drm_fb_get_bpp_depth(uint32_t format
, unsigned int *depth
,
3619 case DRM_FORMAT_RGB332
:
3620 case DRM_FORMAT_BGR233
:
3624 case DRM_FORMAT_XRGB1555
:
3625 case DRM_FORMAT_XBGR1555
:
3626 case DRM_FORMAT_RGBX5551
:
3627 case DRM_FORMAT_BGRX5551
:
3628 case DRM_FORMAT_ARGB1555
:
3629 case DRM_FORMAT_ABGR1555
:
3630 case DRM_FORMAT_RGBA5551
:
3631 case DRM_FORMAT_BGRA5551
:
3635 case DRM_FORMAT_RGB565
:
3636 case DRM_FORMAT_BGR565
:
3640 case DRM_FORMAT_RGB888
:
3641 case DRM_FORMAT_BGR888
:
3645 case DRM_FORMAT_XRGB8888
:
3646 case DRM_FORMAT_XBGR8888
:
3647 case DRM_FORMAT_RGBX8888
:
3648 case DRM_FORMAT_BGRX8888
:
3652 case DRM_FORMAT_XRGB2101010
:
3653 case DRM_FORMAT_XBGR2101010
:
3654 case DRM_FORMAT_RGBX1010102
:
3655 case DRM_FORMAT_BGRX1010102
:
3656 case DRM_FORMAT_ARGB2101010
:
3657 case DRM_FORMAT_ABGR2101010
:
3658 case DRM_FORMAT_RGBA1010102
:
3659 case DRM_FORMAT_BGRA1010102
:
3663 case DRM_FORMAT_ARGB8888
:
3664 case DRM_FORMAT_ABGR8888
:
3665 case DRM_FORMAT_RGBA8888
:
3666 case DRM_FORMAT_BGRA8888
:
3671 DRM_DEBUG_KMS("unsupported pixel format\n");
3677 EXPORT_SYMBOL(drm_fb_get_bpp_depth
);
3680 * drm_format_num_planes - get the number of planes for format
3681 * @format: pixel format (DRM_FORMAT_*)
3684 * The number of planes used by the specified pixel format.
3686 int drm_format_num_planes(uint32_t format
)
3689 case DRM_FORMAT_YUV410
:
3690 case DRM_FORMAT_YVU410
:
3691 case DRM_FORMAT_YUV411
:
3692 case DRM_FORMAT_YVU411
:
3693 case DRM_FORMAT_YUV420
:
3694 case DRM_FORMAT_YVU420
:
3695 case DRM_FORMAT_YUV422
:
3696 case DRM_FORMAT_YVU422
:
3697 case DRM_FORMAT_YUV444
:
3698 case DRM_FORMAT_YVU444
:
3700 case DRM_FORMAT_NV12
:
3701 case DRM_FORMAT_NV21
:
3702 case DRM_FORMAT_NV16
:
3703 case DRM_FORMAT_NV61
:
3704 case DRM_FORMAT_NV24
:
3705 case DRM_FORMAT_NV42
:
3711 EXPORT_SYMBOL(drm_format_num_planes
);
3714 * drm_format_plane_cpp - determine the bytes per pixel value
3715 * @format: pixel format (DRM_FORMAT_*)
3716 * @plane: plane index
3719 * The bytes per pixel value for the specified plane.
3721 int drm_format_plane_cpp(uint32_t format
, int plane
)
3726 if (plane
>= drm_format_num_planes(format
))
3730 case DRM_FORMAT_YUYV
:
3731 case DRM_FORMAT_YVYU
:
3732 case DRM_FORMAT_UYVY
:
3733 case DRM_FORMAT_VYUY
:
3735 case DRM_FORMAT_NV12
:
3736 case DRM_FORMAT_NV21
:
3737 case DRM_FORMAT_NV16
:
3738 case DRM_FORMAT_NV61
:
3739 case DRM_FORMAT_NV24
:
3740 case DRM_FORMAT_NV42
:
3741 return plane
? 2 : 1;
3742 case DRM_FORMAT_YUV410
:
3743 case DRM_FORMAT_YVU410
:
3744 case DRM_FORMAT_YUV411
:
3745 case DRM_FORMAT_YVU411
:
3746 case DRM_FORMAT_YUV420
:
3747 case DRM_FORMAT_YVU420
:
3748 case DRM_FORMAT_YUV422
:
3749 case DRM_FORMAT_YVU422
:
3750 case DRM_FORMAT_YUV444
:
3751 case DRM_FORMAT_YVU444
:
3754 drm_fb_get_bpp_depth(format
, &depth
, &bpp
);
3758 EXPORT_SYMBOL(drm_format_plane_cpp
);
3761 * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor
3762 * @format: pixel format (DRM_FORMAT_*)
3765 * The horizontal chroma subsampling factor for the
3766 * specified pixel format.
3768 int drm_format_horz_chroma_subsampling(uint32_t format
)
3771 case DRM_FORMAT_YUV411
:
3772 case DRM_FORMAT_YVU411
:
3773 case DRM_FORMAT_YUV410
:
3774 case DRM_FORMAT_YVU410
:
3776 case DRM_FORMAT_YUYV
:
3777 case DRM_FORMAT_YVYU
:
3778 case DRM_FORMAT_UYVY
:
3779 case DRM_FORMAT_VYUY
:
3780 case DRM_FORMAT_NV12
:
3781 case DRM_FORMAT_NV21
:
3782 case DRM_FORMAT_NV16
:
3783 case DRM_FORMAT_NV61
:
3784 case DRM_FORMAT_YUV422
:
3785 case DRM_FORMAT_YVU422
:
3786 case DRM_FORMAT_YUV420
:
3787 case DRM_FORMAT_YVU420
:
3793 EXPORT_SYMBOL(drm_format_horz_chroma_subsampling
);
3796 * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor
3797 * @format: pixel format (DRM_FORMAT_*)
3800 * The vertical chroma subsampling factor for the
3801 * specified pixel format.
3803 int drm_format_vert_chroma_subsampling(uint32_t format
)
3806 case DRM_FORMAT_YUV410
:
3807 case DRM_FORMAT_YVU410
:
3809 case DRM_FORMAT_YUV420
:
3810 case DRM_FORMAT_YVU420
:
3811 case DRM_FORMAT_NV12
:
3812 case DRM_FORMAT_NV21
:
3818 EXPORT_SYMBOL(drm_format_vert_chroma_subsampling
);
3821 * drm_mode_config_init - initialize DRM mode_configuration structure
3824 * Initialize @dev's mode_config structure, used for tracking the graphics
3825 * configuration of @dev.
3827 * Since this initializes the modeset locks, no locking is possible. Which is no
3828 * problem, since this should happen single threaded at init time. It is the
3829 * driver's problem to ensure this guarantee.
3832 void drm_mode_config_init(struct drm_device
*dev
)
3834 mutex_init(&dev
->mode_config
.mutex
);
3835 mutex_init(&dev
->mode_config
.idr_mutex
);
3836 mutex_init(&dev
->mode_config
.fb_lock
);
3837 INIT_LIST_HEAD(&dev
->mode_config
.fb_list
);
3838 INIT_LIST_HEAD(&dev
->mode_config
.crtc_list
);
3839 INIT_LIST_HEAD(&dev
->mode_config
.connector_list
);
3840 INIT_LIST_HEAD(&dev
->mode_config
.encoder_list
);
3841 INIT_LIST_HEAD(&dev
->mode_config
.property_list
);
3842 INIT_LIST_HEAD(&dev
->mode_config
.property_blob_list
);
3843 INIT_LIST_HEAD(&dev
->mode_config
.plane_list
);
3844 idr_init(&dev
->mode_config
.crtc_idr
);
3846 drm_modeset_lock_all(dev
);
3847 drm_mode_create_standard_connector_properties(dev
);
3848 drm_modeset_unlock_all(dev
);
3850 /* Just to be sure */
3851 dev
->mode_config
.num_fb
= 0;
3852 dev
->mode_config
.num_connector
= 0;
3853 dev
->mode_config
.num_crtc
= 0;
3854 dev
->mode_config
.num_encoder
= 0;
3856 EXPORT_SYMBOL(drm_mode_config_init
);
3859 * drm_mode_config_cleanup - free up DRM mode_config info
3862 * Free up all the connectors and CRTCs associated with this DRM device, then
3863 * free up the framebuffers and associated buffer objects.
3865 * Note that since this /should/ happen single-threaded at driver/device
3866 * teardown time, no locking is required. It's the driver's job to ensure that
3867 * this guarantee actually holds true.
3869 * FIXME: cleanup any dangling user buffer objects too
3871 void drm_mode_config_cleanup(struct drm_device
*dev
)
3873 struct drm_connector
*connector
, *ot
;
3874 struct drm_crtc
*crtc
, *ct
;
3875 struct drm_encoder
*encoder
, *enct
;
3876 struct drm_framebuffer
*fb
, *fbt
;
3877 struct drm_property
*property
, *pt
;
3878 struct drm_property_blob
*blob
, *bt
;
3879 struct drm_plane
*plane
, *plt
;
3881 list_for_each_entry_safe(encoder
, enct
, &dev
->mode_config
.encoder_list
,
3883 encoder
->funcs
->destroy(encoder
);
3886 list_for_each_entry_safe(connector
, ot
,
3887 &dev
->mode_config
.connector_list
, head
) {
3888 connector
->funcs
->destroy(connector
);
3891 list_for_each_entry_safe(property
, pt
, &dev
->mode_config
.property_list
,
3893 drm_property_destroy(dev
, property
);
3896 list_for_each_entry_safe(blob
, bt
, &dev
->mode_config
.property_blob_list
,
3898 drm_property_destroy_blob(dev
, blob
);
3902 * Single-threaded teardown context, so it's not required to grab the
3903 * fb_lock to protect against concurrent fb_list access. Contrary, it
3904 * would actually deadlock with the drm_framebuffer_cleanup function.
3906 * Also, if there are any framebuffers left, that's a driver leak now,
3907 * so politely WARN about this.
3909 WARN_ON(!list_empty(&dev
->mode_config
.fb_list
));
3910 list_for_each_entry_safe(fb
, fbt
, &dev
->mode_config
.fb_list
, head
) {
3911 drm_framebuffer_remove(fb
);
3914 list_for_each_entry_safe(plane
, plt
, &dev
->mode_config
.plane_list
,
3916 plane
->funcs
->destroy(plane
);
3919 list_for_each_entry_safe(crtc
, ct
, &dev
->mode_config
.crtc_list
, head
) {
3920 crtc
->funcs
->destroy(crtc
);
3923 idr_destroy(&dev
->mode_config
.crtc_idr
);
3925 EXPORT_SYMBOL(drm_mode_config_cleanup
);