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" },
129 * Non-global properties, but "required" for certain connectors.
131 static const struct drm_prop_enum_list drm_dvi_i_select_enum_list
[] =
133 { DRM_MODE_SUBCONNECTOR_Automatic
, "Automatic" }, /* DVI-I and TV-out */
134 { DRM_MODE_SUBCONNECTOR_DVID
, "DVI-D" }, /* DVI-I */
135 { DRM_MODE_SUBCONNECTOR_DVIA
, "DVI-A" }, /* DVI-I */
138 DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name
, drm_dvi_i_select_enum_list
)
140 static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list
[] =
142 { DRM_MODE_SUBCONNECTOR_Unknown
, "Unknown" }, /* DVI-I and TV-out */
143 { DRM_MODE_SUBCONNECTOR_DVID
, "DVI-D" }, /* DVI-I */
144 { DRM_MODE_SUBCONNECTOR_DVIA
, "DVI-A" }, /* DVI-I */
147 DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name
,
148 drm_dvi_i_subconnector_enum_list
)
150 static const struct drm_prop_enum_list drm_tv_select_enum_list
[] =
152 { DRM_MODE_SUBCONNECTOR_Automatic
, "Automatic" }, /* DVI-I and TV-out */
153 { DRM_MODE_SUBCONNECTOR_Composite
, "Composite" }, /* TV-out */
154 { DRM_MODE_SUBCONNECTOR_SVIDEO
, "SVIDEO" }, /* TV-out */
155 { DRM_MODE_SUBCONNECTOR_Component
, "Component" }, /* TV-out */
156 { DRM_MODE_SUBCONNECTOR_SCART
, "SCART" }, /* TV-out */
159 DRM_ENUM_NAME_FN(drm_get_tv_select_name
, drm_tv_select_enum_list
)
161 static const struct drm_prop_enum_list drm_tv_subconnector_enum_list
[] =
163 { DRM_MODE_SUBCONNECTOR_Unknown
, "Unknown" }, /* DVI-I and TV-out */
164 { DRM_MODE_SUBCONNECTOR_Composite
, "Composite" }, /* TV-out */
165 { DRM_MODE_SUBCONNECTOR_SVIDEO
, "SVIDEO" }, /* TV-out */
166 { DRM_MODE_SUBCONNECTOR_Component
, "Component" }, /* TV-out */
167 { DRM_MODE_SUBCONNECTOR_SCART
, "SCART" }, /* TV-out */
170 DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name
,
171 drm_tv_subconnector_enum_list
)
173 static const struct drm_prop_enum_list drm_dirty_info_enum_list
[] = {
174 { DRM_MODE_DIRTY_OFF
, "Off" },
175 { DRM_MODE_DIRTY_ON
, "On" },
176 { DRM_MODE_DIRTY_ANNOTATE
, "Annotate" },
179 struct drm_conn_prop_enum_list
{
186 * Connector and encoder types.
188 static struct drm_conn_prop_enum_list drm_connector_enum_list
[] =
189 { { DRM_MODE_CONNECTOR_Unknown
, "Unknown" },
190 { DRM_MODE_CONNECTOR_VGA
, "VGA" },
191 { DRM_MODE_CONNECTOR_DVII
, "DVI-I" },
192 { DRM_MODE_CONNECTOR_DVID
, "DVI-D" },
193 { DRM_MODE_CONNECTOR_DVIA
, "DVI-A" },
194 { DRM_MODE_CONNECTOR_Composite
, "Composite" },
195 { DRM_MODE_CONNECTOR_SVIDEO
, "SVIDEO" },
196 { DRM_MODE_CONNECTOR_LVDS
, "LVDS" },
197 { DRM_MODE_CONNECTOR_Component
, "Component" },
198 { DRM_MODE_CONNECTOR_9PinDIN
, "DIN" },
199 { DRM_MODE_CONNECTOR_DisplayPort
, "DP" },
200 { DRM_MODE_CONNECTOR_HDMIA
, "HDMI-A" },
201 { DRM_MODE_CONNECTOR_HDMIB
, "HDMI-B" },
202 { DRM_MODE_CONNECTOR_TV
, "TV" },
203 { DRM_MODE_CONNECTOR_eDP
, "eDP" },
204 { DRM_MODE_CONNECTOR_VIRTUAL
, "Virtual" },
205 { DRM_MODE_CONNECTOR_DSI
, "DSI" },
208 static const struct drm_prop_enum_list drm_encoder_enum_list
[] =
209 { { DRM_MODE_ENCODER_NONE
, "None" },
210 { DRM_MODE_ENCODER_DAC
, "DAC" },
211 { DRM_MODE_ENCODER_TMDS
, "TMDS" },
212 { DRM_MODE_ENCODER_LVDS
, "LVDS" },
213 { DRM_MODE_ENCODER_TVDAC
, "TV" },
214 { DRM_MODE_ENCODER_VIRTUAL
, "Virtual" },
215 { DRM_MODE_ENCODER_DSI
, "DSI" },
218 void drm_connector_ida_init(void)
222 for (i
= 0; i
< ARRAY_SIZE(drm_connector_enum_list
); i
++)
223 ida_init(&drm_connector_enum_list
[i
].ida
);
226 void drm_connector_ida_destroy(void)
230 for (i
= 0; i
< ARRAY_SIZE(drm_connector_enum_list
); i
++)
231 ida_destroy(&drm_connector_enum_list
[i
].ida
);
234 const char *drm_get_encoder_name(const struct drm_encoder
*encoder
)
238 snprintf(buf
, 32, "%s-%d",
239 drm_encoder_enum_list
[encoder
->encoder_type
].name
,
243 EXPORT_SYMBOL(drm_get_encoder_name
);
245 const char *drm_get_connector_name(const struct drm_connector
*connector
)
249 snprintf(buf
, 32, "%s-%d",
250 drm_connector_enum_list
[connector
->connector_type
].name
,
251 connector
->connector_type_id
);
254 EXPORT_SYMBOL(drm_get_connector_name
);
256 const char *drm_get_connector_status_name(enum drm_connector_status status
)
258 if (status
== connector_status_connected
)
260 else if (status
== connector_status_disconnected
)
261 return "disconnected";
265 EXPORT_SYMBOL(drm_get_connector_status_name
);
267 static char printable_char(int c
)
269 return isascii(c
) && isprint(c
) ? c
: '?';
272 const char *drm_get_format_name(uint32_t format
)
276 snprintf(buf
, sizeof(buf
),
277 "%c%c%c%c %s-endian (0x%08x)",
278 printable_char(format
& 0xff),
279 printable_char((format
>> 8) & 0xff),
280 printable_char((format
>> 16) & 0xff),
281 printable_char((format
>> 24) & 0x7f),
282 format
& DRM_FORMAT_BIG_ENDIAN
? "big" : "little",
287 EXPORT_SYMBOL(drm_get_format_name
);
290 * drm_mode_object_get - allocate a new modeset identifier
292 * @obj: object pointer, used to generate unique ID
293 * @obj_type: object type
295 * Create a unique identifier based on @ptr in @dev's identifier space. Used
296 * for tracking modes, CRTCs and connectors.
299 * New unique (relative to other objects in @dev) integer identifier for the
302 static int drm_mode_object_get(struct drm_device
*dev
,
303 struct drm_mode_object
*obj
, uint32_t obj_type
)
307 mutex_lock(&dev
->mode_config
.idr_mutex
);
308 ret
= idr_alloc(&dev
->mode_config
.crtc_idr
, obj
, 1, 0, GFP_KERNEL
);
311 * Set up the object linking under the protection of the idr
312 * lock so that other users can't see inconsistent state.
315 obj
->type
= obj_type
;
317 mutex_unlock(&dev
->mode_config
.idr_mutex
);
319 return ret
< 0 ? ret
: 0;
323 * drm_mode_object_put - free a modeset identifer
325 * @object: object to free
327 * Free @id from @dev's unique identifier pool.
329 static void drm_mode_object_put(struct drm_device
*dev
,
330 struct drm_mode_object
*object
)
332 mutex_lock(&dev
->mode_config
.idr_mutex
);
333 idr_remove(&dev
->mode_config
.crtc_idr
, object
->id
);
334 mutex_unlock(&dev
->mode_config
.idr_mutex
);
338 * drm_mode_object_find - look up a drm object with static lifetime
340 * @id: id of the mode object
341 * @type: type of the mode object
343 * Note that framebuffers cannot be looked up with this functions - since those
344 * are reference counted, they need special treatment.
346 struct drm_mode_object
*drm_mode_object_find(struct drm_device
*dev
,
347 uint32_t id
, uint32_t type
)
349 struct drm_mode_object
*obj
= NULL
;
351 /* Framebuffers are reference counted and need their own lookup
353 WARN_ON(type
== DRM_MODE_OBJECT_FB
);
355 mutex_lock(&dev
->mode_config
.idr_mutex
);
356 obj
= idr_find(&dev
->mode_config
.crtc_idr
, id
);
357 if (!obj
|| (obj
->type
!= type
) || (obj
->id
!= id
))
359 mutex_unlock(&dev
->mode_config
.idr_mutex
);
363 EXPORT_SYMBOL(drm_mode_object_find
);
366 * drm_framebuffer_init - initialize a framebuffer
368 * @fb: framebuffer to be initialized
369 * @funcs: ... with these functions
371 * Allocates an ID for the framebuffer's parent mode object, sets its mode
372 * functions & device file and adds it to the master fd list.
375 * This functions publishes the fb and makes it available for concurrent access
376 * by other users. Which means by this point the fb _must_ be fully set up -
377 * since all the fb attributes are invariant over its lifetime, no further
378 * locking but only correct reference counting is required.
381 * Zero on success, error code on failure.
383 int drm_framebuffer_init(struct drm_device
*dev
, struct drm_framebuffer
*fb
,
384 const struct drm_framebuffer_funcs
*funcs
)
388 mutex_lock(&dev
->mode_config
.fb_lock
);
389 kref_init(&fb
->refcount
);
390 INIT_LIST_HEAD(&fb
->filp_head
);
394 ret
= drm_mode_object_get(dev
, &fb
->base
, DRM_MODE_OBJECT_FB
);
398 /* Grab the idr reference. */
399 drm_framebuffer_reference(fb
);
401 dev
->mode_config
.num_fb
++;
402 list_add(&fb
->head
, &dev
->mode_config
.fb_list
);
404 mutex_unlock(&dev
->mode_config
.fb_lock
);
408 EXPORT_SYMBOL(drm_framebuffer_init
);
410 static void drm_framebuffer_free(struct kref
*kref
)
412 struct drm_framebuffer
*fb
=
413 container_of(kref
, struct drm_framebuffer
, refcount
);
414 fb
->funcs
->destroy(fb
);
417 static struct drm_framebuffer
*__drm_framebuffer_lookup(struct drm_device
*dev
,
420 struct drm_mode_object
*obj
= NULL
;
421 struct drm_framebuffer
*fb
;
423 mutex_lock(&dev
->mode_config
.idr_mutex
);
424 obj
= idr_find(&dev
->mode_config
.crtc_idr
, id
);
425 if (!obj
|| (obj
->type
!= DRM_MODE_OBJECT_FB
) || (obj
->id
!= id
))
429 mutex_unlock(&dev
->mode_config
.idr_mutex
);
435 * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference
437 * @id: id of the fb object
439 * If successful, this grabs an additional reference to the framebuffer -
440 * callers need to make sure to eventually unreference the returned framebuffer
443 struct drm_framebuffer
*drm_framebuffer_lookup(struct drm_device
*dev
,
446 struct drm_framebuffer
*fb
;
448 mutex_lock(&dev
->mode_config
.fb_lock
);
449 fb
= __drm_framebuffer_lookup(dev
, id
);
451 drm_framebuffer_reference(fb
);
452 mutex_unlock(&dev
->mode_config
.fb_lock
);
456 EXPORT_SYMBOL(drm_framebuffer_lookup
);
459 * drm_framebuffer_unreference - unref a framebuffer
460 * @fb: framebuffer to unref
462 * This functions decrements the fb's refcount and frees it if it drops to zero.
464 void drm_framebuffer_unreference(struct drm_framebuffer
*fb
)
466 DRM_DEBUG("FB ID: %d\n", fb
->base
.id
);
467 kref_put(&fb
->refcount
, drm_framebuffer_free
);
469 EXPORT_SYMBOL(drm_framebuffer_unreference
);
472 * drm_framebuffer_reference - incr the fb refcnt
475 void drm_framebuffer_reference(struct drm_framebuffer
*fb
)
477 DRM_DEBUG("FB ID: %d\n", fb
->base
.id
);
478 kref_get(&fb
->refcount
);
480 EXPORT_SYMBOL(drm_framebuffer_reference
);
482 static void drm_framebuffer_free_bug(struct kref
*kref
)
487 static void __drm_framebuffer_unreference(struct drm_framebuffer
*fb
)
489 DRM_DEBUG("FB ID: %d\n", fb
->base
.id
);
490 kref_put(&fb
->refcount
, drm_framebuffer_free_bug
);
493 /* dev->mode_config.fb_lock must be held! */
494 static void __drm_framebuffer_unregister(struct drm_device
*dev
,
495 struct drm_framebuffer
*fb
)
497 mutex_lock(&dev
->mode_config
.idr_mutex
);
498 idr_remove(&dev
->mode_config
.crtc_idr
, fb
->base
.id
);
499 mutex_unlock(&dev
->mode_config
.idr_mutex
);
503 __drm_framebuffer_unreference(fb
);
507 * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr
508 * @fb: fb to unregister
510 * Drivers need to call this when cleaning up driver-private framebuffers, e.g.
511 * those used for fbdev. Note that the caller must hold a reference of it's own,
512 * i.e. the object may not be destroyed through this call (since it'll lead to a
513 * locking inversion).
515 void drm_framebuffer_unregister_private(struct drm_framebuffer
*fb
)
517 struct drm_device
*dev
= fb
->dev
;
519 mutex_lock(&dev
->mode_config
.fb_lock
);
520 /* Mark fb as reaped and drop idr ref. */
521 __drm_framebuffer_unregister(dev
, fb
);
522 mutex_unlock(&dev
->mode_config
.fb_lock
);
524 EXPORT_SYMBOL(drm_framebuffer_unregister_private
);
527 * drm_framebuffer_cleanup - remove a framebuffer object
528 * @fb: framebuffer to remove
530 * Cleanup references to a user-created framebuffer. This function is intended
531 * to be used from the drivers ->destroy callback.
533 * Note that this function does not remove the fb from active usuage - if it is
534 * still used anywhere, hilarity can ensue since userspace could call getfb on
535 * the id and get back -EINVAL. Obviously no concern at driver unload time.
537 * Also, the framebuffer will not be removed from the lookup idr - for
538 * user-created framebuffers this will happen in in the rmfb ioctl. For
539 * driver-private objects (e.g. for fbdev) drivers need to explicitly call
540 * drm_framebuffer_unregister_private.
542 void drm_framebuffer_cleanup(struct drm_framebuffer
*fb
)
544 struct drm_device
*dev
= fb
->dev
;
546 mutex_lock(&dev
->mode_config
.fb_lock
);
548 dev
->mode_config
.num_fb
--;
549 mutex_unlock(&dev
->mode_config
.fb_lock
);
551 EXPORT_SYMBOL(drm_framebuffer_cleanup
);
554 * drm_framebuffer_remove - remove and unreference a framebuffer object
555 * @fb: framebuffer to remove
557 * Scans all the CRTCs and planes in @dev's mode_config. If they're
558 * using @fb, removes it, setting it to NULL. Then drops the reference to the
559 * passed-in framebuffer. Might take the modeset locks.
561 * Note that this function optimizes the cleanup away if the caller holds the
562 * last reference to the framebuffer. It is also guaranteed to not take the
563 * modeset locks in this case.
565 void drm_framebuffer_remove(struct drm_framebuffer
*fb
)
567 struct drm_device
*dev
= fb
->dev
;
568 struct drm_crtc
*crtc
;
569 struct drm_plane
*plane
;
570 struct drm_mode_set set
;
573 WARN_ON(!list_empty(&fb
->filp_head
));
576 * drm ABI mandates that we remove any deleted framebuffers from active
577 * useage. But since most sane clients only remove framebuffers they no
578 * longer need, try to optimize this away.
580 * Since we're holding a reference ourselves, observing a refcount of 1
581 * means that we're the last holder and can skip it. Also, the refcount
582 * can never increase from 1 again, so we don't need any barriers or
585 * Note that userspace could try to race with use and instate a new
586 * usage _after_ we've cleared all current ones. End result will be an
587 * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot
590 if (atomic_read(&fb
->refcount
.refcount
) > 1) {
591 drm_modeset_lock_all(dev
);
592 /* remove from any CRTC */
593 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
) {
594 if (crtc
->fb
== fb
) {
595 /* should turn off the crtc */
596 memset(&set
, 0, sizeof(struct drm_mode_set
));
599 ret
= drm_mode_set_config_internal(&set
);
601 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc
);
605 list_for_each_entry(plane
, &dev
->mode_config
.plane_list
, head
) {
607 drm_plane_force_disable(plane
);
609 drm_modeset_unlock_all(dev
);
612 drm_framebuffer_unreference(fb
);
614 EXPORT_SYMBOL(drm_framebuffer_remove
);
617 * drm_crtc_init - Initialise a new CRTC object
619 * @crtc: CRTC object to init
620 * @funcs: callbacks for the new CRTC
622 * Inits a new object created as base part of a driver crtc object.
625 * Zero on success, error code on failure.
627 int drm_crtc_init(struct drm_device
*dev
, struct drm_crtc
*crtc
,
628 const struct drm_crtc_funcs
*funcs
)
634 crtc
->invert_dimensions
= false;
636 drm_modeset_lock_all(dev
);
637 mutex_init(&crtc
->mutex
);
638 mutex_lock_nest_lock(&crtc
->mutex
, &dev
->mode_config
.mutex
);
640 ret
= drm_mode_object_get(dev
, &crtc
->base
, DRM_MODE_OBJECT_CRTC
);
644 crtc
->base
.properties
= &crtc
->properties
;
646 list_add_tail(&crtc
->head
, &dev
->mode_config
.crtc_list
);
647 dev
->mode_config
.num_crtc
++;
650 drm_modeset_unlock_all(dev
);
654 EXPORT_SYMBOL(drm_crtc_init
);
657 * drm_crtc_cleanup - Clean up the core crtc usage
658 * @crtc: CRTC to cleanup
660 * This function cleans up @crtc and removes it from the DRM mode setting
661 * core. Note that the function does *not* free the crtc structure itself,
662 * this is the responsibility of the caller.
664 void drm_crtc_cleanup(struct drm_crtc
*crtc
)
666 struct drm_device
*dev
= crtc
->dev
;
668 kfree(crtc
->gamma_store
);
669 crtc
->gamma_store
= NULL
;
671 drm_mode_object_put(dev
, &crtc
->base
);
672 list_del(&crtc
->head
);
673 dev
->mode_config
.num_crtc
--;
675 EXPORT_SYMBOL(drm_crtc_cleanup
);
678 * drm_mode_probed_add - add a mode to a connector's probed mode list
679 * @connector: connector the new mode
682 * Add @mode to @connector's mode list for later use.
684 void drm_mode_probed_add(struct drm_connector
*connector
,
685 struct drm_display_mode
*mode
)
687 list_add_tail(&mode
->head
, &connector
->probed_modes
);
689 EXPORT_SYMBOL(drm_mode_probed_add
);
692 * drm_mode_remove - remove and free a mode
693 * @connector: connector list to modify
694 * @mode: mode to remove
696 * Remove @mode from @connector's mode list, then free it.
698 static void drm_mode_remove(struct drm_connector
*connector
,
699 struct drm_display_mode
*mode
)
701 list_del(&mode
->head
);
702 drm_mode_destroy(connector
->dev
, mode
);
706 * drm_connector_init - Init a preallocated connector
708 * @connector: the connector to init
709 * @funcs: callbacks for this connector
710 * @connector_type: user visible type of the connector
712 * Initialises a preallocated connector. Connectors should be
713 * subclassed as part of driver connector objects.
716 * Zero on success, error code on failure.
718 int drm_connector_init(struct drm_device
*dev
,
719 struct drm_connector
*connector
,
720 const struct drm_connector_funcs
*funcs
,
724 struct ida
*connector_ida
=
725 &drm_connector_enum_list
[connector_type
].ida
;
727 drm_modeset_lock_all(dev
);
729 ret
= drm_mode_object_get(dev
, &connector
->base
, DRM_MODE_OBJECT_CONNECTOR
);
733 connector
->base
.properties
= &connector
->properties
;
734 connector
->dev
= dev
;
735 connector
->funcs
= funcs
;
736 connector
->connector_type
= connector_type
;
737 connector
->connector_type_id
=
738 ida_simple_get(connector_ida
, 1, 0, GFP_KERNEL
);
739 if (connector
->connector_type_id
< 0) {
740 ret
= connector
->connector_type_id
;
741 drm_mode_object_put(dev
, &connector
->base
);
744 INIT_LIST_HEAD(&connector
->probed_modes
);
745 INIT_LIST_HEAD(&connector
->modes
);
746 connector
->edid_blob_ptr
= NULL
;
747 connector
->status
= connector_status_unknown
;
749 list_add_tail(&connector
->head
, &dev
->mode_config
.connector_list
);
750 dev
->mode_config
.num_connector
++;
752 if (connector_type
!= DRM_MODE_CONNECTOR_VIRTUAL
)
753 drm_object_attach_property(&connector
->base
,
754 dev
->mode_config
.edid_property
,
757 drm_object_attach_property(&connector
->base
,
758 dev
->mode_config
.dpms_property
, 0);
761 drm_modeset_unlock_all(dev
);
765 EXPORT_SYMBOL(drm_connector_init
);
768 * drm_connector_cleanup - cleans up an initialised connector
769 * @connector: connector to cleanup
771 * Cleans up the connector but doesn't free the object.
773 void drm_connector_cleanup(struct drm_connector
*connector
)
775 struct drm_device
*dev
= connector
->dev
;
776 struct drm_display_mode
*mode
, *t
;
778 list_for_each_entry_safe(mode
, t
, &connector
->probed_modes
, head
)
779 drm_mode_remove(connector
, mode
);
781 list_for_each_entry_safe(mode
, t
, &connector
->modes
, head
)
782 drm_mode_remove(connector
, mode
);
784 ida_remove(&drm_connector_enum_list
[connector
->connector_type
].ida
,
785 connector
->connector_type_id
);
787 drm_mode_object_put(dev
, &connector
->base
);
788 list_del(&connector
->head
);
789 dev
->mode_config
.num_connector
--;
791 EXPORT_SYMBOL(drm_connector_cleanup
);
793 void drm_connector_unplug_all(struct drm_device
*dev
)
795 struct drm_connector
*connector
;
797 /* taking the mode config mutex ends up in a clash with sysfs */
798 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
)
799 drm_sysfs_connector_remove(connector
);
802 EXPORT_SYMBOL(drm_connector_unplug_all
);
804 int drm_bridge_init(struct drm_device
*dev
, struct drm_bridge
*bridge
,
805 const struct drm_bridge_funcs
*funcs
)
809 drm_modeset_lock_all(dev
);
811 ret
= drm_mode_object_get(dev
, &bridge
->base
, DRM_MODE_OBJECT_BRIDGE
);
816 bridge
->funcs
= funcs
;
818 list_add_tail(&bridge
->head
, &dev
->mode_config
.bridge_list
);
819 dev
->mode_config
.num_bridge
++;
822 drm_modeset_unlock_all(dev
);
825 EXPORT_SYMBOL(drm_bridge_init
);
827 void drm_bridge_cleanup(struct drm_bridge
*bridge
)
829 struct drm_device
*dev
= bridge
->dev
;
831 drm_modeset_lock_all(dev
);
832 drm_mode_object_put(dev
, &bridge
->base
);
833 list_del(&bridge
->head
);
834 dev
->mode_config
.num_bridge
--;
835 drm_modeset_unlock_all(dev
);
837 EXPORT_SYMBOL(drm_bridge_cleanup
);
839 int drm_encoder_init(struct drm_device
*dev
,
840 struct drm_encoder
*encoder
,
841 const struct drm_encoder_funcs
*funcs
,
846 drm_modeset_lock_all(dev
);
848 ret
= drm_mode_object_get(dev
, &encoder
->base
, DRM_MODE_OBJECT_ENCODER
);
853 encoder
->encoder_type
= encoder_type
;
854 encoder
->funcs
= funcs
;
856 list_add_tail(&encoder
->head
, &dev
->mode_config
.encoder_list
);
857 dev
->mode_config
.num_encoder
++;
860 drm_modeset_unlock_all(dev
);
864 EXPORT_SYMBOL(drm_encoder_init
);
866 void drm_encoder_cleanup(struct drm_encoder
*encoder
)
868 struct drm_device
*dev
= encoder
->dev
;
869 drm_modeset_lock_all(dev
);
870 drm_mode_object_put(dev
, &encoder
->base
);
871 list_del(&encoder
->head
);
872 dev
->mode_config
.num_encoder
--;
873 drm_modeset_unlock_all(dev
);
875 EXPORT_SYMBOL(drm_encoder_cleanup
);
878 * drm_plane_init - Initialise a new plane object
880 * @plane: plane object to init
881 * @possible_crtcs: bitmask of possible CRTCs
882 * @funcs: callbacks for the new plane
883 * @formats: array of supported formats (%DRM_FORMAT_*)
884 * @format_count: number of elements in @formats
885 * @priv: plane is private (hidden from userspace)?
887 * Inits a new object created as base part of a driver plane object.
890 * Zero on success, error code on failure.
892 int drm_plane_init(struct drm_device
*dev
, struct drm_plane
*plane
,
893 unsigned long possible_crtcs
,
894 const struct drm_plane_funcs
*funcs
,
895 const uint32_t *formats
, uint32_t format_count
,
900 drm_modeset_lock_all(dev
);
902 ret
= drm_mode_object_get(dev
, &plane
->base
, DRM_MODE_OBJECT_PLANE
);
906 plane
->base
.properties
= &plane
->properties
;
908 plane
->funcs
= funcs
;
909 plane
->format_types
= kmalloc(sizeof(uint32_t) * format_count
,
911 if (!plane
->format_types
) {
912 DRM_DEBUG_KMS("out of memory when allocating plane\n");
913 drm_mode_object_put(dev
, &plane
->base
);
918 memcpy(plane
->format_types
, formats
, format_count
* sizeof(uint32_t));
919 plane
->format_count
= format_count
;
920 plane
->possible_crtcs
= possible_crtcs
;
922 /* private planes are not exposed to userspace, but depending on
923 * display hardware, might be convenient to allow sharing programming
924 * for the scanout engine with the crtc implementation.
927 list_add_tail(&plane
->head
, &dev
->mode_config
.plane_list
);
928 dev
->mode_config
.num_plane
++;
930 INIT_LIST_HEAD(&plane
->head
);
934 drm_modeset_unlock_all(dev
);
938 EXPORT_SYMBOL(drm_plane_init
);
941 * drm_plane_cleanup - Clean up the core plane usage
942 * @plane: plane to cleanup
944 * This function cleans up @plane and removes it from the DRM mode setting
945 * core. Note that the function does *not* free the plane structure itself,
946 * this is the responsibility of the caller.
948 void drm_plane_cleanup(struct drm_plane
*plane
)
950 struct drm_device
*dev
= plane
->dev
;
952 drm_modeset_lock_all(dev
);
953 kfree(plane
->format_types
);
954 drm_mode_object_put(dev
, &plane
->base
);
955 /* if not added to a list, it must be a private plane */
956 if (!list_empty(&plane
->head
)) {
957 list_del(&plane
->head
);
958 dev
->mode_config
.num_plane
--;
960 drm_modeset_unlock_all(dev
);
962 EXPORT_SYMBOL(drm_plane_cleanup
);
965 * drm_plane_force_disable - Forcibly disable a plane
966 * @plane: plane to disable
968 * Forces the plane to be disabled.
970 * Used when the plane's current framebuffer is destroyed,
971 * and when restoring fbdev mode.
973 void drm_plane_force_disable(struct drm_plane
*plane
)
980 ret
= plane
->funcs
->disable_plane(plane
);
982 DRM_ERROR("failed to disable plane with busy fb\n");
983 /* disconnect the plane from the fb and crtc: */
984 __drm_framebuffer_unreference(plane
->fb
);
988 EXPORT_SYMBOL(drm_plane_force_disable
);
991 * drm_mode_create - create a new display mode
994 * Create a new drm_display_mode, give it an ID, and return it.
997 * Pointer to new mode on success, NULL on error.
999 struct drm_display_mode
*drm_mode_create(struct drm_device
*dev
)
1001 struct drm_display_mode
*nmode
;
1003 nmode
= kzalloc(sizeof(struct drm_display_mode
), GFP_KERNEL
);
1007 if (drm_mode_object_get(dev
, &nmode
->base
, DRM_MODE_OBJECT_MODE
)) {
1014 EXPORT_SYMBOL(drm_mode_create
);
1017 * drm_mode_destroy - remove a mode
1019 * @mode: mode to remove
1021 * Free @mode's unique identifier, then free it.
1023 void drm_mode_destroy(struct drm_device
*dev
, struct drm_display_mode
*mode
)
1028 drm_mode_object_put(dev
, &mode
->base
);
1032 EXPORT_SYMBOL(drm_mode_destroy
);
1034 static int drm_mode_create_standard_connector_properties(struct drm_device
*dev
)
1036 struct drm_property
*edid
;
1037 struct drm_property
*dpms
;
1040 * Standard properties (apply to all connectors)
1042 edid
= drm_property_create(dev
, DRM_MODE_PROP_BLOB
|
1043 DRM_MODE_PROP_IMMUTABLE
,
1045 dev
->mode_config
.edid_property
= edid
;
1047 dpms
= drm_property_create_enum(dev
, 0,
1048 "DPMS", drm_dpms_enum_list
,
1049 ARRAY_SIZE(drm_dpms_enum_list
));
1050 dev
->mode_config
.dpms_property
= dpms
;
1056 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
1059 * Called by a driver the first time a DVI-I connector is made.
1061 int drm_mode_create_dvi_i_properties(struct drm_device
*dev
)
1063 struct drm_property
*dvi_i_selector
;
1064 struct drm_property
*dvi_i_subconnector
;
1066 if (dev
->mode_config
.dvi_i_select_subconnector_property
)
1070 drm_property_create_enum(dev
, 0,
1071 "select subconnector",
1072 drm_dvi_i_select_enum_list
,
1073 ARRAY_SIZE(drm_dvi_i_select_enum_list
));
1074 dev
->mode_config
.dvi_i_select_subconnector_property
= dvi_i_selector
;
1076 dvi_i_subconnector
= drm_property_create_enum(dev
, DRM_MODE_PROP_IMMUTABLE
,
1078 drm_dvi_i_subconnector_enum_list
,
1079 ARRAY_SIZE(drm_dvi_i_subconnector_enum_list
));
1080 dev
->mode_config
.dvi_i_subconnector_property
= dvi_i_subconnector
;
1084 EXPORT_SYMBOL(drm_mode_create_dvi_i_properties
);
1087 * drm_create_tv_properties - create TV specific connector properties
1089 * @num_modes: number of different TV formats (modes) supported
1090 * @modes: array of pointers to strings containing name of each format
1092 * Called by a driver's TV initialization routine, this function creates
1093 * the TV specific connector properties for a given device. Caller is
1094 * responsible for allocating a list of format names and passing them to
1097 int drm_mode_create_tv_properties(struct drm_device
*dev
, int num_modes
,
1100 struct drm_property
*tv_selector
;
1101 struct drm_property
*tv_subconnector
;
1104 if (dev
->mode_config
.tv_select_subconnector_property
)
1108 * Basic connector properties
1110 tv_selector
= drm_property_create_enum(dev
, 0,
1111 "select subconnector",
1112 drm_tv_select_enum_list
,
1113 ARRAY_SIZE(drm_tv_select_enum_list
));
1114 dev
->mode_config
.tv_select_subconnector_property
= tv_selector
;
1117 drm_property_create_enum(dev
, DRM_MODE_PROP_IMMUTABLE
,
1119 drm_tv_subconnector_enum_list
,
1120 ARRAY_SIZE(drm_tv_subconnector_enum_list
));
1121 dev
->mode_config
.tv_subconnector_property
= tv_subconnector
;
1124 * Other, TV specific properties: margins & TV modes.
1126 dev
->mode_config
.tv_left_margin_property
=
1127 drm_property_create_range(dev
, 0, "left margin", 0, 100);
1129 dev
->mode_config
.tv_right_margin_property
=
1130 drm_property_create_range(dev
, 0, "right margin", 0, 100);
1132 dev
->mode_config
.tv_top_margin_property
=
1133 drm_property_create_range(dev
, 0, "top margin", 0, 100);
1135 dev
->mode_config
.tv_bottom_margin_property
=
1136 drm_property_create_range(dev
, 0, "bottom margin", 0, 100);
1138 dev
->mode_config
.tv_mode_property
=
1139 drm_property_create(dev
, DRM_MODE_PROP_ENUM
,
1141 for (i
= 0; i
< num_modes
; i
++)
1142 drm_property_add_enum(dev
->mode_config
.tv_mode_property
, i
,
1145 dev
->mode_config
.tv_brightness_property
=
1146 drm_property_create_range(dev
, 0, "brightness", 0, 100);
1148 dev
->mode_config
.tv_contrast_property
=
1149 drm_property_create_range(dev
, 0, "contrast", 0, 100);
1151 dev
->mode_config
.tv_flicker_reduction_property
=
1152 drm_property_create_range(dev
, 0, "flicker reduction", 0, 100);
1154 dev
->mode_config
.tv_overscan_property
=
1155 drm_property_create_range(dev
, 0, "overscan", 0, 100);
1157 dev
->mode_config
.tv_saturation_property
=
1158 drm_property_create_range(dev
, 0, "saturation", 0, 100);
1160 dev
->mode_config
.tv_hue_property
=
1161 drm_property_create_range(dev
, 0, "hue", 0, 100);
1165 EXPORT_SYMBOL(drm_mode_create_tv_properties
);
1168 * drm_mode_create_scaling_mode_property - create scaling mode property
1171 * Called by a driver the first time it's needed, must be attached to desired
1174 int drm_mode_create_scaling_mode_property(struct drm_device
*dev
)
1176 struct drm_property
*scaling_mode
;
1178 if (dev
->mode_config
.scaling_mode_property
)
1182 drm_property_create_enum(dev
, 0, "scaling mode",
1183 drm_scaling_mode_enum_list
,
1184 ARRAY_SIZE(drm_scaling_mode_enum_list
));
1186 dev
->mode_config
.scaling_mode_property
= scaling_mode
;
1190 EXPORT_SYMBOL(drm_mode_create_scaling_mode_property
);
1193 * drm_mode_create_dirty_property - create dirty property
1196 * Called by a driver the first time it's needed, must be attached to desired
1199 int drm_mode_create_dirty_info_property(struct drm_device
*dev
)
1201 struct drm_property
*dirty_info
;
1203 if (dev
->mode_config
.dirty_info_property
)
1207 drm_property_create_enum(dev
, DRM_MODE_PROP_IMMUTABLE
,
1209 drm_dirty_info_enum_list
,
1210 ARRAY_SIZE(drm_dirty_info_enum_list
));
1211 dev
->mode_config
.dirty_info_property
= dirty_info
;
1215 EXPORT_SYMBOL(drm_mode_create_dirty_info_property
);
1217 static int drm_mode_group_init(struct drm_device
*dev
, struct drm_mode_group
*group
)
1219 uint32_t total_objects
= 0;
1221 total_objects
+= dev
->mode_config
.num_crtc
;
1222 total_objects
+= dev
->mode_config
.num_connector
;
1223 total_objects
+= dev
->mode_config
.num_encoder
;
1224 total_objects
+= dev
->mode_config
.num_bridge
;
1226 group
->id_list
= kzalloc(total_objects
* sizeof(uint32_t), GFP_KERNEL
);
1227 if (!group
->id_list
)
1230 group
->num_crtcs
= 0;
1231 group
->num_connectors
= 0;
1232 group
->num_encoders
= 0;
1233 group
->num_bridges
= 0;
1237 int drm_mode_group_init_legacy_group(struct drm_device
*dev
,
1238 struct drm_mode_group
*group
)
1240 struct drm_crtc
*crtc
;
1241 struct drm_encoder
*encoder
;
1242 struct drm_connector
*connector
;
1243 struct drm_bridge
*bridge
;
1246 if ((ret
= drm_mode_group_init(dev
, group
)))
1249 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
)
1250 group
->id_list
[group
->num_crtcs
++] = crtc
->base
.id
;
1252 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
)
1253 group
->id_list
[group
->num_crtcs
+ group
->num_encoders
++] =
1256 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
)
1257 group
->id_list
[group
->num_crtcs
+ group
->num_encoders
+
1258 group
->num_connectors
++] = connector
->base
.id
;
1260 list_for_each_entry(bridge
, &dev
->mode_config
.bridge_list
, head
)
1261 group
->id_list
[group
->num_crtcs
+ group
->num_encoders
+
1262 group
->num_connectors
+ group
->num_bridges
++] =
1267 EXPORT_SYMBOL(drm_mode_group_init_legacy_group
);
1270 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
1271 * @out: drm_mode_modeinfo struct to return to the user
1272 * @in: drm_display_mode to use
1274 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
1277 static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo
*out
,
1278 const struct drm_display_mode
*in
)
1280 WARN(in
->hdisplay
> USHRT_MAX
|| in
->hsync_start
> USHRT_MAX
||
1281 in
->hsync_end
> USHRT_MAX
|| in
->htotal
> USHRT_MAX
||
1282 in
->hskew
> USHRT_MAX
|| in
->vdisplay
> USHRT_MAX
||
1283 in
->vsync_start
> USHRT_MAX
|| in
->vsync_end
> USHRT_MAX
||
1284 in
->vtotal
> USHRT_MAX
|| in
->vscan
> USHRT_MAX
,
1285 "timing values too large for mode info\n");
1287 out
->clock
= in
->clock
;
1288 out
->hdisplay
= in
->hdisplay
;
1289 out
->hsync_start
= in
->hsync_start
;
1290 out
->hsync_end
= in
->hsync_end
;
1291 out
->htotal
= in
->htotal
;
1292 out
->hskew
= in
->hskew
;
1293 out
->vdisplay
= in
->vdisplay
;
1294 out
->vsync_start
= in
->vsync_start
;
1295 out
->vsync_end
= in
->vsync_end
;
1296 out
->vtotal
= in
->vtotal
;
1297 out
->vscan
= in
->vscan
;
1298 out
->vrefresh
= in
->vrefresh
;
1299 out
->flags
= in
->flags
;
1300 out
->type
= in
->type
;
1301 strncpy(out
->name
, in
->name
, DRM_DISPLAY_MODE_LEN
);
1302 out
->name
[DRM_DISPLAY_MODE_LEN
-1] = 0;
1306 * drm_crtc_convert_umode - convert a modeinfo into a drm_display_mode
1307 * @out: drm_display_mode to return to the user
1308 * @in: drm_mode_modeinfo to use
1310 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
1314 * Zero on success, errno on failure.
1316 static int drm_crtc_convert_umode(struct drm_display_mode
*out
,
1317 const struct drm_mode_modeinfo
*in
)
1319 if (in
->clock
> INT_MAX
|| in
->vrefresh
> INT_MAX
)
1322 if ((in
->flags
& DRM_MODE_FLAG_3D_MASK
) > DRM_MODE_FLAG_3D_MAX
)
1325 out
->clock
= in
->clock
;
1326 out
->hdisplay
= in
->hdisplay
;
1327 out
->hsync_start
= in
->hsync_start
;
1328 out
->hsync_end
= in
->hsync_end
;
1329 out
->htotal
= in
->htotal
;
1330 out
->hskew
= in
->hskew
;
1331 out
->vdisplay
= in
->vdisplay
;
1332 out
->vsync_start
= in
->vsync_start
;
1333 out
->vsync_end
= in
->vsync_end
;
1334 out
->vtotal
= in
->vtotal
;
1335 out
->vscan
= in
->vscan
;
1336 out
->vrefresh
= in
->vrefresh
;
1337 out
->flags
= in
->flags
;
1338 out
->type
= in
->type
;
1339 strncpy(out
->name
, in
->name
, DRM_DISPLAY_MODE_LEN
);
1340 out
->name
[DRM_DISPLAY_MODE_LEN
-1] = 0;
1346 * drm_mode_getresources - get graphics configuration
1347 * @dev: drm device for the ioctl
1348 * @data: data pointer for the ioctl
1349 * @file_priv: drm file for the ioctl call
1351 * Construct a set of configuration description structures and return
1352 * them to the user, including CRTC, connector and framebuffer configuration.
1354 * Called by the user via ioctl.
1357 * Zero on success, errno on failure.
1359 int drm_mode_getresources(struct drm_device
*dev
, void *data
,
1360 struct drm_file
*file_priv
)
1362 struct drm_mode_card_res
*card_res
= data
;
1363 struct list_head
*lh
;
1364 struct drm_framebuffer
*fb
;
1365 struct drm_connector
*connector
;
1366 struct drm_crtc
*crtc
;
1367 struct drm_encoder
*encoder
;
1369 int connector_count
= 0;
1372 int encoder_count
= 0;
1374 uint32_t __user
*fb_id
;
1375 uint32_t __user
*crtc_id
;
1376 uint32_t __user
*connector_id
;
1377 uint32_t __user
*encoder_id
;
1378 struct drm_mode_group
*mode_group
;
1380 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
1384 mutex_lock(&file_priv
->fbs_lock
);
1386 * For the non-control nodes we need to limit the list of resources
1387 * by IDs in the group list for this node
1389 list_for_each(lh
, &file_priv
->fbs
)
1392 /* handle this in 4 parts */
1394 if (card_res
->count_fbs
>= fb_count
) {
1396 fb_id
= (uint32_t __user
*)(unsigned long)card_res
->fb_id_ptr
;
1397 list_for_each_entry(fb
, &file_priv
->fbs
, filp_head
) {
1398 if (put_user(fb
->base
.id
, fb_id
+ copied
)) {
1399 mutex_unlock(&file_priv
->fbs_lock
);
1405 card_res
->count_fbs
= fb_count
;
1406 mutex_unlock(&file_priv
->fbs_lock
);
1408 drm_modeset_lock_all(dev
);
1409 mode_group
= &file_priv
->master
->minor
->mode_group
;
1410 if (file_priv
->master
->minor
->type
== DRM_MINOR_CONTROL
) {
1412 list_for_each(lh
, &dev
->mode_config
.crtc_list
)
1415 list_for_each(lh
, &dev
->mode_config
.connector_list
)
1418 list_for_each(lh
, &dev
->mode_config
.encoder_list
)
1422 crtc_count
= mode_group
->num_crtcs
;
1423 connector_count
= mode_group
->num_connectors
;
1424 encoder_count
= mode_group
->num_encoders
;
1427 card_res
->max_height
= dev
->mode_config
.max_height
;
1428 card_res
->min_height
= dev
->mode_config
.min_height
;
1429 card_res
->max_width
= dev
->mode_config
.max_width
;
1430 card_res
->min_width
= dev
->mode_config
.min_width
;
1433 if (card_res
->count_crtcs
>= crtc_count
) {
1435 crtc_id
= (uint32_t __user
*)(unsigned long)card_res
->crtc_id_ptr
;
1436 if (file_priv
->master
->minor
->type
== DRM_MINOR_CONTROL
) {
1437 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
,
1439 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc
->base
.id
);
1440 if (put_user(crtc
->base
.id
, crtc_id
+ copied
)) {
1447 for (i
= 0; i
< mode_group
->num_crtcs
; i
++) {
1448 if (put_user(mode_group
->id_list
[i
],
1449 crtc_id
+ copied
)) {
1457 card_res
->count_crtcs
= crtc_count
;
1460 if (card_res
->count_encoders
>= encoder_count
) {
1462 encoder_id
= (uint32_t __user
*)(unsigned long)card_res
->encoder_id_ptr
;
1463 if (file_priv
->master
->minor
->type
== DRM_MINOR_CONTROL
) {
1464 list_for_each_entry(encoder
,
1465 &dev
->mode_config
.encoder_list
,
1467 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder
->base
.id
,
1468 drm_get_encoder_name(encoder
));
1469 if (put_user(encoder
->base
.id
, encoder_id
+
1477 for (i
= mode_group
->num_crtcs
; i
< mode_group
->num_crtcs
+ mode_group
->num_encoders
; i
++) {
1478 if (put_user(mode_group
->id_list
[i
],
1479 encoder_id
+ copied
)) {
1488 card_res
->count_encoders
= encoder_count
;
1491 if (card_res
->count_connectors
>= connector_count
) {
1493 connector_id
= (uint32_t __user
*)(unsigned long)card_res
->connector_id_ptr
;
1494 if (file_priv
->master
->minor
->type
== DRM_MINOR_CONTROL
) {
1495 list_for_each_entry(connector
,
1496 &dev
->mode_config
.connector_list
,
1498 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1500 drm_get_connector_name(connector
));
1501 if (put_user(connector
->base
.id
,
1502 connector_id
+ copied
)) {
1509 int start
= mode_group
->num_crtcs
+
1510 mode_group
->num_encoders
;
1511 for (i
= start
; i
< start
+ mode_group
->num_connectors
; i
++) {
1512 if (put_user(mode_group
->id_list
[i
],
1513 connector_id
+ copied
)) {
1521 card_res
->count_connectors
= connector_count
;
1523 DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res
->count_crtcs
,
1524 card_res
->count_connectors
, card_res
->count_encoders
);
1527 drm_modeset_unlock_all(dev
);
1532 * drm_mode_getcrtc - get CRTC configuration
1533 * @dev: drm device for the ioctl
1534 * @data: data pointer for the ioctl
1535 * @file_priv: drm file for the ioctl call
1537 * Construct a CRTC configuration structure to return to the user.
1539 * Called by the user via ioctl.
1542 * Zero on success, errno on failure.
1544 int drm_mode_getcrtc(struct drm_device
*dev
,
1545 void *data
, struct drm_file
*file_priv
)
1547 struct drm_mode_crtc
*crtc_resp
= data
;
1548 struct drm_crtc
*crtc
;
1549 struct drm_mode_object
*obj
;
1552 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
1555 drm_modeset_lock_all(dev
);
1557 obj
= drm_mode_object_find(dev
, crtc_resp
->crtc_id
,
1558 DRM_MODE_OBJECT_CRTC
);
1563 crtc
= obj_to_crtc(obj
);
1565 crtc_resp
->x
= crtc
->x
;
1566 crtc_resp
->y
= crtc
->y
;
1567 crtc_resp
->gamma_size
= crtc
->gamma_size
;
1569 crtc_resp
->fb_id
= crtc
->fb
->base
.id
;
1571 crtc_resp
->fb_id
= 0;
1573 if (crtc
->enabled
) {
1575 drm_crtc_convert_to_umode(&crtc_resp
->mode
, &crtc
->mode
);
1576 crtc_resp
->mode_valid
= 1;
1579 crtc_resp
->mode_valid
= 0;
1583 drm_modeset_unlock_all(dev
);
1587 static bool drm_mode_expose_to_userspace(const struct drm_display_mode
*mode
,
1588 const struct drm_file
*file_priv
)
1591 * If user-space hasn't configured the driver to expose the stereo 3D
1592 * modes, don't expose them.
1594 if (!file_priv
->stereo_allowed
&& drm_mode_is_stereo(mode
))
1601 * drm_mode_getconnector - get connector configuration
1602 * @dev: drm device for the ioctl
1603 * @data: data pointer for the ioctl
1604 * @file_priv: drm file for the ioctl call
1606 * Construct a connector configuration structure to return to the user.
1608 * Called by the user via ioctl.
1611 * Zero on success, errno on failure.
1613 int drm_mode_getconnector(struct drm_device
*dev
, void *data
,
1614 struct drm_file
*file_priv
)
1616 struct drm_mode_get_connector
*out_resp
= data
;
1617 struct drm_mode_object
*obj
;
1618 struct drm_connector
*connector
;
1619 struct drm_display_mode
*mode
;
1621 int props_count
= 0;
1622 int encoders_count
= 0;
1626 struct drm_mode_modeinfo u_mode
;
1627 struct drm_mode_modeinfo __user
*mode_ptr
;
1628 uint32_t __user
*prop_ptr
;
1629 uint64_t __user
*prop_values
;
1630 uint32_t __user
*encoder_ptr
;
1632 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
1635 memset(&u_mode
, 0, sizeof(struct drm_mode_modeinfo
));
1637 DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp
->connector_id
);
1639 mutex_lock(&dev
->mode_config
.mutex
);
1641 obj
= drm_mode_object_find(dev
, out_resp
->connector_id
,
1642 DRM_MODE_OBJECT_CONNECTOR
);
1647 connector
= obj_to_connector(obj
);
1649 props_count
= connector
->properties
.count
;
1651 for (i
= 0; i
< DRM_CONNECTOR_MAX_ENCODER
; i
++) {
1652 if (connector
->encoder_ids
[i
] != 0) {
1657 if (out_resp
->count_modes
== 0) {
1658 connector
->funcs
->fill_modes(connector
,
1659 dev
->mode_config
.max_width
,
1660 dev
->mode_config
.max_height
);
1663 /* delayed so we get modes regardless of pre-fill_modes state */
1664 list_for_each_entry(mode
, &connector
->modes
, head
)
1665 if (drm_mode_expose_to_userspace(mode
, file_priv
))
1668 out_resp
->connector_id
= connector
->base
.id
;
1669 out_resp
->connector_type
= connector
->connector_type
;
1670 out_resp
->connector_type_id
= connector
->connector_type_id
;
1671 out_resp
->mm_width
= connector
->display_info
.width_mm
;
1672 out_resp
->mm_height
= connector
->display_info
.height_mm
;
1673 out_resp
->subpixel
= connector
->display_info
.subpixel_order
;
1674 out_resp
->connection
= connector
->status
;
1675 if (connector
->encoder
)
1676 out_resp
->encoder_id
= connector
->encoder
->base
.id
;
1678 out_resp
->encoder_id
= 0;
1681 * This ioctl is called twice, once to determine how much space is
1682 * needed, and the 2nd time to fill it.
1684 if ((out_resp
->count_modes
>= mode_count
) && mode_count
) {
1686 mode_ptr
= (struct drm_mode_modeinfo __user
*)(unsigned long)out_resp
->modes_ptr
;
1687 list_for_each_entry(mode
, &connector
->modes
, head
) {
1688 if (!drm_mode_expose_to_userspace(mode
, file_priv
))
1691 drm_crtc_convert_to_umode(&u_mode
, mode
);
1692 if (copy_to_user(mode_ptr
+ copied
,
1693 &u_mode
, sizeof(u_mode
))) {
1700 out_resp
->count_modes
= mode_count
;
1702 if ((out_resp
->count_props
>= props_count
) && props_count
) {
1704 prop_ptr
= (uint32_t __user
*)(unsigned long)(out_resp
->props_ptr
);
1705 prop_values
= (uint64_t __user
*)(unsigned long)(out_resp
->prop_values_ptr
);
1706 for (i
= 0; i
< connector
->properties
.count
; i
++) {
1707 if (put_user(connector
->properties
.ids
[i
],
1708 prop_ptr
+ copied
)) {
1713 if (put_user(connector
->properties
.values
[i
],
1714 prop_values
+ copied
)) {
1721 out_resp
->count_props
= props_count
;
1723 if ((out_resp
->count_encoders
>= encoders_count
) && encoders_count
) {
1725 encoder_ptr
= (uint32_t __user
*)(unsigned long)(out_resp
->encoders_ptr
);
1726 for (i
= 0; i
< DRM_CONNECTOR_MAX_ENCODER
; i
++) {
1727 if (connector
->encoder_ids
[i
] != 0) {
1728 if (put_user(connector
->encoder_ids
[i
],
1729 encoder_ptr
+ copied
)) {
1737 out_resp
->count_encoders
= encoders_count
;
1740 mutex_unlock(&dev
->mode_config
.mutex
);
1745 int drm_mode_getencoder(struct drm_device
*dev
, void *data
,
1746 struct drm_file
*file_priv
)
1748 struct drm_mode_get_encoder
*enc_resp
= data
;
1749 struct drm_mode_object
*obj
;
1750 struct drm_encoder
*encoder
;
1753 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
1756 drm_modeset_lock_all(dev
);
1757 obj
= drm_mode_object_find(dev
, enc_resp
->encoder_id
,
1758 DRM_MODE_OBJECT_ENCODER
);
1763 encoder
= obj_to_encoder(obj
);
1766 enc_resp
->crtc_id
= encoder
->crtc
->base
.id
;
1768 enc_resp
->crtc_id
= 0;
1769 enc_resp
->encoder_type
= encoder
->encoder_type
;
1770 enc_resp
->encoder_id
= encoder
->base
.id
;
1771 enc_resp
->possible_crtcs
= encoder
->possible_crtcs
;
1772 enc_resp
->possible_clones
= encoder
->possible_clones
;
1775 drm_modeset_unlock_all(dev
);
1780 * drm_mode_getplane_res - get plane info
1783 * @file_priv: DRM file info
1785 * Return an plane count and set of IDs.
1787 int drm_mode_getplane_res(struct drm_device
*dev
, void *data
,
1788 struct drm_file
*file_priv
)
1790 struct drm_mode_get_plane_res
*plane_resp
= data
;
1791 struct drm_mode_config
*config
;
1792 struct drm_plane
*plane
;
1793 uint32_t __user
*plane_ptr
;
1794 int copied
= 0, ret
= 0;
1796 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
1799 drm_modeset_lock_all(dev
);
1800 config
= &dev
->mode_config
;
1803 * This ioctl is called twice, once to determine how much space is
1804 * needed, and the 2nd time to fill it.
1806 if (config
->num_plane
&&
1807 (plane_resp
->count_planes
>= config
->num_plane
)) {
1808 plane_ptr
= (uint32_t __user
*)(unsigned long)plane_resp
->plane_id_ptr
;
1810 list_for_each_entry(plane
, &config
->plane_list
, head
) {
1811 if (put_user(plane
->base
.id
, plane_ptr
+ copied
)) {
1818 plane_resp
->count_planes
= config
->num_plane
;
1821 drm_modeset_unlock_all(dev
);
1826 * drm_mode_getplane - get plane info
1829 * @file_priv: DRM file info
1831 * Return plane info, including formats supported, gamma size, any
1834 int drm_mode_getplane(struct drm_device
*dev
, void *data
,
1835 struct drm_file
*file_priv
)
1837 struct drm_mode_get_plane
*plane_resp
= data
;
1838 struct drm_mode_object
*obj
;
1839 struct drm_plane
*plane
;
1840 uint32_t __user
*format_ptr
;
1843 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
1846 drm_modeset_lock_all(dev
);
1847 obj
= drm_mode_object_find(dev
, plane_resp
->plane_id
,
1848 DRM_MODE_OBJECT_PLANE
);
1853 plane
= obj_to_plane(obj
);
1856 plane_resp
->crtc_id
= plane
->crtc
->base
.id
;
1858 plane_resp
->crtc_id
= 0;
1861 plane_resp
->fb_id
= plane
->fb
->base
.id
;
1863 plane_resp
->fb_id
= 0;
1865 plane_resp
->plane_id
= plane
->base
.id
;
1866 plane_resp
->possible_crtcs
= plane
->possible_crtcs
;
1867 plane_resp
->gamma_size
= 0;
1870 * This ioctl is called twice, once to determine how much space is
1871 * needed, and the 2nd time to fill it.
1873 if (plane
->format_count
&&
1874 (plane_resp
->count_format_types
>= plane
->format_count
)) {
1875 format_ptr
= (uint32_t __user
*)(unsigned long)plane_resp
->format_type_ptr
;
1876 if (copy_to_user(format_ptr
,
1877 plane
->format_types
,
1878 sizeof(uint32_t) * plane
->format_count
)) {
1883 plane_resp
->count_format_types
= plane
->format_count
;
1886 drm_modeset_unlock_all(dev
);
1891 * drm_mode_setplane - set up or tear down an plane
1893 * @data: ioctl data*
1894 * @file_priv: DRM file info
1896 * Set plane info, including placement, fb, scaling, and other factors.
1897 * Or pass a NULL fb to disable.
1899 int drm_mode_setplane(struct drm_device
*dev
, void *data
,
1900 struct drm_file
*file_priv
)
1902 struct drm_mode_set_plane
*plane_req
= data
;
1903 struct drm_mode_object
*obj
;
1904 struct drm_plane
*plane
;
1905 struct drm_crtc
*crtc
;
1906 struct drm_framebuffer
*fb
= NULL
, *old_fb
= NULL
;
1908 unsigned int fb_width
, fb_height
;
1911 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
1915 * First, find the plane, crtc, and fb objects. If not available,
1916 * we don't bother to call the driver.
1918 obj
= drm_mode_object_find(dev
, plane_req
->plane_id
,
1919 DRM_MODE_OBJECT_PLANE
);
1921 DRM_DEBUG_KMS("Unknown plane ID %d\n",
1922 plane_req
->plane_id
);
1925 plane
= obj_to_plane(obj
);
1927 /* No fb means shut it down */
1928 if (!plane_req
->fb_id
) {
1929 drm_modeset_lock_all(dev
);
1931 plane
->funcs
->disable_plane(plane
);
1934 drm_modeset_unlock_all(dev
);
1938 obj
= drm_mode_object_find(dev
, plane_req
->crtc_id
,
1939 DRM_MODE_OBJECT_CRTC
);
1941 DRM_DEBUG_KMS("Unknown crtc ID %d\n",
1942 plane_req
->crtc_id
);
1946 crtc
= obj_to_crtc(obj
);
1948 fb
= drm_framebuffer_lookup(dev
, plane_req
->fb_id
);
1950 DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
1956 /* Check whether this plane supports the fb pixel format. */
1957 for (i
= 0; i
< plane
->format_count
; i
++)
1958 if (fb
->pixel_format
== plane
->format_types
[i
])
1960 if (i
== plane
->format_count
) {
1961 DRM_DEBUG_KMS("Invalid pixel format %s\n",
1962 drm_get_format_name(fb
->pixel_format
));
1967 fb_width
= fb
->width
<< 16;
1968 fb_height
= fb
->height
<< 16;
1970 /* Make sure source coordinates are inside the fb. */
1971 if (plane_req
->src_w
> fb_width
||
1972 plane_req
->src_x
> fb_width
- plane_req
->src_w
||
1973 plane_req
->src_h
> fb_height
||
1974 plane_req
->src_y
> fb_height
- plane_req
->src_h
) {
1975 DRM_DEBUG_KMS("Invalid source coordinates "
1976 "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
1977 plane_req
->src_w
>> 16,
1978 ((plane_req
->src_w
& 0xffff) * 15625) >> 10,
1979 plane_req
->src_h
>> 16,
1980 ((plane_req
->src_h
& 0xffff) * 15625) >> 10,
1981 plane_req
->src_x
>> 16,
1982 ((plane_req
->src_x
& 0xffff) * 15625) >> 10,
1983 plane_req
->src_y
>> 16,
1984 ((plane_req
->src_y
& 0xffff) * 15625) >> 10);
1989 /* Give drivers some help against integer overflows */
1990 if (plane_req
->crtc_w
> INT_MAX
||
1991 plane_req
->crtc_x
> INT_MAX
- (int32_t) plane_req
->crtc_w
||
1992 plane_req
->crtc_h
> INT_MAX
||
1993 plane_req
->crtc_y
> INT_MAX
- (int32_t) plane_req
->crtc_h
) {
1994 DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
1995 plane_req
->crtc_w
, plane_req
->crtc_h
,
1996 plane_req
->crtc_x
, plane_req
->crtc_y
);
2001 drm_modeset_lock_all(dev
);
2002 ret
= plane
->funcs
->update_plane(plane
, crtc
, fb
,
2003 plane_req
->crtc_x
, plane_req
->crtc_y
,
2004 plane_req
->crtc_w
, plane_req
->crtc_h
,
2005 plane_req
->src_x
, plane_req
->src_y
,
2006 plane_req
->src_w
, plane_req
->src_h
);
2013 drm_modeset_unlock_all(dev
);
2017 drm_framebuffer_unreference(fb
);
2019 drm_framebuffer_unreference(old_fb
);
2025 * drm_mode_set_config_internal - helper to call ->set_config
2026 * @set: modeset config to set
2028 * This is a little helper to wrap internal calls to the ->set_config driver
2029 * interface. The only thing it adds is correct refcounting dance.
2031 int drm_mode_set_config_internal(struct drm_mode_set
*set
)
2033 struct drm_crtc
*crtc
= set
->crtc
;
2034 struct drm_framebuffer
*fb
;
2035 struct drm_crtc
*tmp
;
2039 * NOTE: ->set_config can also disable other crtcs (if we steal all
2040 * connectors from it), hence we need to refcount the fbs across all
2041 * crtcs. Atomic modeset will have saner semantics ...
2043 list_for_each_entry(tmp
, &crtc
->dev
->mode_config
.crtc_list
, head
)
2044 tmp
->old_fb
= tmp
->fb
;
2048 ret
= crtc
->funcs
->set_config(set
);
2050 /* crtc->fb must be updated by ->set_config, enforces this. */
2051 WARN_ON(fb
!= crtc
->fb
);
2054 list_for_each_entry(tmp
, &crtc
->dev
->mode_config
.crtc_list
, head
) {
2056 drm_framebuffer_reference(tmp
->fb
);
2058 drm_framebuffer_unreference(tmp
->old_fb
);
2063 EXPORT_SYMBOL(drm_mode_set_config_internal
);
2066 * Checks that the framebuffer is big enough for the CRTC viewport
2067 * (x, y, hdisplay, vdisplay)
2069 static int drm_crtc_check_viewport(const struct drm_crtc
*crtc
,
2071 const struct drm_display_mode
*mode
,
2072 const struct drm_framebuffer
*fb
)
2075 int hdisplay
, vdisplay
;
2077 hdisplay
= mode
->hdisplay
;
2078 vdisplay
= mode
->vdisplay
;
2080 if (drm_mode_is_stereo(mode
)) {
2081 struct drm_display_mode adjusted
= *mode
;
2083 drm_mode_set_crtcinfo(&adjusted
, CRTC_STEREO_DOUBLE
);
2084 hdisplay
= adjusted
.crtc_hdisplay
;
2085 vdisplay
= adjusted
.crtc_vdisplay
;
2088 if (crtc
->invert_dimensions
)
2089 swap(hdisplay
, vdisplay
);
2091 if (hdisplay
> fb
->width
||
2092 vdisplay
> fb
->height
||
2093 x
> fb
->width
- hdisplay
||
2094 y
> fb
->height
- vdisplay
) {
2095 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
2096 fb
->width
, fb
->height
, hdisplay
, vdisplay
, x
, y
,
2097 crtc
->invert_dimensions
? " (inverted)" : "");
2105 * drm_mode_setcrtc - set CRTC configuration
2106 * @dev: drm device for the ioctl
2107 * @data: data pointer for the ioctl
2108 * @file_priv: drm file for the ioctl call
2110 * Build a new CRTC configuration based on user request.
2112 * Called by the user via ioctl.
2115 * Zero on success, errno on failure.
2117 int drm_mode_setcrtc(struct drm_device
*dev
, void *data
,
2118 struct drm_file
*file_priv
)
2120 struct drm_mode_config
*config
= &dev
->mode_config
;
2121 struct drm_mode_crtc
*crtc_req
= data
;
2122 struct drm_mode_object
*obj
;
2123 struct drm_crtc
*crtc
;
2124 struct drm_connector
**connector_set
= NULL
, *connector
;
2125 struct drm_framebuffer
*fb
= NULL
;
2126 struct drm_display_mode
*mode
= NULL
;
2127 struct drm_mode_set set
;
2128 uint32_t __user
*set_connectors_ptr
;
2132 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2135 /* For some reason crtc x/y offsets are signed internally. */
2136 if (crtc_req
->x
> INT_MAX
|| crtc_req
->y
> INT_MAX
)
2139 drm_modeset_lock_all(dev
);
2140 obj
= drm_mode_object_find(dev
, crtc_req
->crtc_id
,
2141 DRM_MODE_OBJECT_CRTC
);
2143 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req
->crtc_id
);
2147 crtc
= obj_to_crtc(obj
);
2148 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc
->base
.id
);
2150 if (crtc_req
->mode_valid
) {
2151 /* If we have a mode we need a framebuffer. */
2152 /* If we pass -1, set the mode with the currently bound fb */
2153 if (crtc_req
->fb_id
== -1) {
2155 DRM_DEBUG_KMS("CRTC doesn't have current FB\n");
2160 /* Make refcounting symmetric with the lookup path. */
2161 drm_framebuffer_reference(fb
);
2163 fb
= drm_framebuffer_lookup(dev
, crtc_req
->fb_id
);
2165 DRM_DEBUG_KMS("Unknown FB ID%d\n",
2172 mode
= drm_mode_create(dev
);
2178 ret
= drm_crtc_convert_umode(mode
, &crtc_req
->mode
);
2180 DRM_DEBUG_KMS("Invalid mode\n");
2184 drm_mode_set_crtcinfo(mode
, CRTC_INTERLACE_HALVE_V
);
2186 ret
= drm_crtc_check_viewport(crtc
, crtc_req
->x
, crtc_req
->y
,
2193 if (crtc_req
->count_connectors
== 0 && mode
) {
2194 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
2199 if (crtc_req
->count_connectors
> 0 && (!mode
|| !fb
)) {
2200 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
2201 crtc_req
->count_connectors
);
2206 if (crtc_req
->count_connectors
> 0) {
2209 /* Avoid unbounded kernel memory allocation */
2210 if (crtc_req
->count_connectors
> config
->num_connector
) {
2215 connector_set
= kmalloc(crtc_req
->count_connectors
*
2216 sizeof(struct drm_connector
*),
2218 if (!connector_set
) {
2223 for (i
= 0; i
< crtc_req
->count_connectors
; i
++) {
2224 set_connectors_ptr
= (uint32_t __user
*)(unsigned long)crtc_req
->set_connectors_ptr
;
2225 if (get_user(out_id
, &set_connectors_ptr
[i
])) {
2230 obj
= drm_mode_object_find(dev
, out_id
,
2231 DRM_MODE_OBJECT_CONNECTOR
);
2233 DRM_DEBUG_KMS("Connector id %d unknown\n",
2238 connector
= obj_to_connector(obj
);
2239 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
2241 drm_get_connector_name(connector
));
2243 connector_set
[i
] = connector
;
2248 set
.x
= crtc_req
->x
;
2249 set
.y
= crtc_req
->y
;
2251 set
.connectors
= connector_set
;
2252 set
.num_connectors
= crtc_req
->count_connectors
;
2254 ret
= drm_mode_set_config_internal(&set
);
2258 drm_framebuffer_unreference(fb
);
2260 kfree(connector_set
);
2261 drm_mode_destroy(dev
, mode
);
2262 drm_modeset_unlock_all(dev
);
2266 static int drm_mode_cursor_common(struct drm_device
*dev
,
2267 struct drm_mode_cursor2
*req
,
2268 struct drm_file
*file_priv
)
2270 struct drm_mode_object
*obj
;
2271 struct drm_crtc
*crtc
;
2274 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2277 if (!req
->flags
|| (~DRM_MODE_CURSOR_FLAGS
& req
->flags
))
2280 obj
= drm_mode_object_find(dev
, req
->crtc_id
, DRM_MODE_OBJECT_CRTC
);
2282 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req
->crtc_id
);
2285 crtc
= obj_to_crtc(obj
);
2287 mutex_lock(&crtc
->mutex
);
2288 if (req
->flags
& DRM_MODE_CURSOR_BO
) {
2289 if (!crtc
->funcs
->cursor_set
&& !crtc
->funcs
->cursor_set2
) {
2293 /* Turns off the cursor if handle is 0 */
2294 if (crtc
->funcs
->cursor_set2
)
2295 ret
= crtc
->funcs
->cursor_set2(crtc
, file_priv
, req
->handle
,
2296 req
->width
, req
->height
, req
->hot_x
, req
->hot_y
);
2298 ret
= crtc
->funcs
->cursor_set(crtc
, file_priv
, req
->handle
,
2299 req
->width
, req
->height
);
2302 if (req
->flags
& DRM_MODE_CURSOR_MOVE
) {
2303 if (crtc
->funcs
->cursor_move
) {
2304 ret
= crtc
->funcs
->cursor_move(crtc
, req
->x
, req
->y
);
2311 mutex_unlock(&crtc
->mutex
);
2316 int drm_mode_cursor_ioctl(struct drm_device
*dev
,
2317 void *data
, struct drm_file
*file_priv
)
2319 struct drm_mode_cursor
*req
= data
;
2320 struct drm_mode_cursor2 new_req
;
2322 memcpy(&new_req
, req
, sizeof(struct drm_mode_cursor
));
2323 new_req
.hot_x
= new_req
.hot_y
= 0;
2325 return drm_mode_cursor_common(dev
, &new_req
, file_priv
);
2328 int drm_mode_cursor2_ioctl(struct drm_device
*dev
,
2329 void *data
, struct drm_file
*file_priv
)
2331 struct drm_mode_cursor2
*req
= data
;
2332 return drm_mode_cursor_common(dev
, req
, file_priv
);
2335 /* Original addfb only supported RGB formats, so figure out which one */
2336 uint32_t drm_mode_legacy_fb_format(uint32_t bpp
, uint32_t depth
)
2342 fmt
= DRM_FORMAT_C8
;
2346 fmt
= DRM_FORMAT_XRGB1555
;
2348 fmt
= DRM_FORMAT_RGB565
;
2351 fmt
= DRM_FORMAT_RGB888
;
2355 fmt
= DRM_FORMAT_XRGB8888
;
2356 else if (depth
== 30)
2357 fmt
= DRM_FORMAT_XRGB2101010
;
2359 fmt
= DRM_FORMAT_ARGB8888
;
2362 DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n");
2363 fmt
= DRM_FORMAT_XRGB8888
;
2369 EXPORT_SYMBOL(drm_mode_legacy_fb_format
);
2372 * drm_mode_addfb - add an FB to the graphics configuration
2373 * @dev: drm device for the ioctl
2374 * @data: data pointer for the ioctl
2375 * @file_priv: drm file for the ioctl call
2377 * Add a new FB to the specified CRTC, given a user request.
2379 * Called by the user via ioctl.
2382 * Zero on success, errno on failure.
2384 int drm_mode_addfb(struct drm_device
*dev
,
2385 void *data
, struct drm_file
*file_priv
)
2387 struct drm_mode_fb_cmd
*or = data
;
2388 struct drm_mode_fb_cmd2 r
= {};
2389 struct drm_mode_config
*config
= &dev
->mode_config
;
2390 struct drm_framebuffer
*fb
;
2393 /* Use new struct with format internally */
2394 r
.fb_id
= or->fb_id
;
2395 r
.width
= or->width
;
2396 r
.height
= or->height
;
2397 r
.pitches
[0] = or->pitch
;
2398 r
.pixel_format
= drm_mode_legacy_fb_format(or->bpp
, or->depth
);
2399 r
.handles
[0] = or->handle
;
2401 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2404 if ((config
->min_width
> r
.width
) || (r
.width
> config
->max_width
))
2407 if ((config
->min_height
> r
.height
) || (r
.height
> config
->max_height
))
2410 fb
= dev
->mode_config
.funcs
->fb_create(dev
, file_priv
, &r
);
2412 DRM_DEBUG_KMS("could not create framebuffer\n");
2416 mutex_lock(&file_priv
->fbs_lock
);
2417 or->fb_id
= fb
->base
.id
;
2418 list_add(&fb
->filp_head
, &file_priv
->fbs
);
2419 DRM_DEBUG_KMS("[FB:%d]\n", fb
->base
.id
);
2420 mutex_unlock(&file_priv
->fbs_lock
);
2425 static int format_check(const struct drm_mode_fb_cmd2
*r
)
2427 uint32_t format
= r
->pixel_format
& ~DRM_FORMAT_BIG_ENDIAN
;
2431 case DRM_FORMAT_RGB332
:
2432 case DRM_FORMAT_BGR233
:
2433 case DRM_FORMAT_XRGB4444
:
2434 case DRM_FORMAT_XBGR4444
:
2435 case DRM_FORMAT_RGBX4444
:
2436 case DRM_FORMAT_BGRX4444
:
2437 case DRM_FORMAT_ARGB4444
:
2438 case DRM_FORMAT_ABGR4444
:
2439 case DRM_FORMAT_RGBA4444
:
2440 case DRM_FORMAT_BGRA4444
:
2441 case DRM_FORMAT_XRGB1555
:
2442 case DRM_FORMAT_XBGR1555
:
2443 case DRM_FORMAT_RGBX5551
:
2444 case DRM_FORMAT_BGRX5551
:
2445 case DRM_FORMAT_ARGB1555
:
2446 case DRM_FORMAT_ABGR1555
:
2447 case DRM_FORMAT_RGBA5551
:
2448 case DRM_FORMAT_BGRA5551
:
2449 case DRM_FORMAT_RGB565
:
2450 case DRM_FORMAT_BGR565
:
2451 case DRM_FORMAT_RGB888
:
2452 case DRM_FORMAT_BGR888
:
2453 case DRM_FORMAT_XRGB8888
:
2454 case DRM_FORMAT_XBGR8888
:
2455 case DRM_FORMAT_RGBX8888
:
2456 case DRM_FORMAT_BGRX8888
:
2457 case DRM_FORMAT_ARGB8888
:
2458 case DRM_FORMAT_ABGR8888
:
2459 case DRM_FORMAT_RGBA8888
:
2460 case DRM_FORMAT_BGRA8888
:
2461 case DRM_FORMAT_XRGB2101010
:
2462 case DRM_FORMAT_XBGR2101010
:
2463 case DRM_FORMAT_RGBX1010102
:
2464 case DRM_FORMAT_BGRX1010102
:
2465 case DRM_FORMAT_ARGB2101010
:
2466 case DRM_FORMAT_ABGR2101010
:
2467 case DRM_FORMAT_RGBA1010102
:
2468 case DRM_FORMAT_BGRA1010102
:
2469 case DRM_FORMAT_YUYV
:
2470 case DRM_FORMAT_YVYU
:
2471 case DRM_FORMAT_UYVY
:
2472 case DRM_FORMAT_VYUY
:
2473 case DRM_FORMAT_AYUV
:
2474 case DRM_FORMAT_NV12
:
2475 case DRM_FORMAT_NV21
:
2476 case DRM_FORMAT_NV16
:
2477 case DRM_FORMAT_NV61
:
2478 case DRM_FORMAT_NV24
:
2479 case DRM_FORMAT_NV42
:
2480 case DRM_FORMAT_YUV410
:
2481 case DRM_FORMAT_YVU410
:
2482 case DRM_FORMAT_YUV411
:
2483 case DRM_FORMAT_YVU411
:
2484 case DRM_FORMAT_YUV420
:
2485 case DRM_FORMAT_YVU420
:
2486 case DRM_FORMAT_YUV422
:
2487 case DRM_FORMAT_YVU422
:
2488 case DRM_FORMAT_YUV444
:
2489 case DRM_FORMAT_YVU444
:
2492 DRM_DEBUG_KMS("invalid pixel format %s\n",
2493 drm_get_format_name(r
->pixel_format
));
2498 static int framebuffer_check(const struct drm_mode_fb_cmd2
*r
)
2500 int ret
, hsub
, vsub
, num_planes
, i
;
2502 ret
= format_check(r
);
2504 DRM_DEBUG_KMS("bad framebuffer format %s\n",
2505 drm_get_format_name(r
->pixel_format
));
2509 hsub
= drm_format_horz_chroma_subsampling(r
->pixel_format
);
2510 vsub
= drm_format_vert_chroma_subsampling(r
->pixel_format
);
2511 num_planes
= drm_format_num_planes(r
->pixel_format
);
2513 if (r
->width
== 0 || r
->width
% hsub
) {
2514 DRM_DEBUG_KMS("bad framebuffer width %u\n", r
->height
);
2518 if (r
->height
== 0 || r
->height
% vsub
) {
2519 DRM_DEBUG_KMS("bad framebuffer height %u\n", r
->height
);
2523 for (i
= 0; i
< num_planes
; i
++) {
2524 unsigned int width
= r
->width
/ (i
!= 0 ? hsub
: 1);
2525 unsigned int height
= r
->height
/ (i
!= 0 ? vsub
: 1);
2526 unsigned int cpp
= drm_format_plane_cpp(r
->pixel_format
, i
);
2528 if (!r
->handles
[i
]) {
2529 DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i
);
2533 if ((uint64_t) width
* cpp
> UINT_MAX
)
2536 if ((uint64_t) height
* r
->pitches
[i
] + r
->offsets
[i
] > UINT_MAX
)
2539 if (r
->pitches
[i
] < width
* cpp
) {
2540 DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r
->pitches
[i
], i
);
2549 * drm_mode_addfb2 - add an FB to the graphics configuration
2550 * @dev: drm device for the ioctl
2551 * @data: data pointer for the ioctl
2552 * @file_priv: drm file for the ioctl call
2554 * Add a new FB to the specified CRTC, given a user request with format.
2556 * Called by the user via ioctl.
2559 * Zero on success, errno on failure.
2561 int drm_mode_addfb2(struct drm_device
*dev
,
2562 void *data
, struct drm_file
*file_priv
)
2564 struct drm_mode_fb_cmd2
*r
= data
;
2565 struct drm_mode_config
*config
= &dev
->mode_config
;
2566 struct drm_framebuffer
*fb
;
2569 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2572 if (r
->flags
& ~DRM_MODE_FB_INTERLACED
) {
2573 DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r
->flags
);
2577 if ((config
->min_width
> r
->width
) || (r
->width
> config
->max_width
)) {
2578 DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n",
2579 r
->width
, config
->min_width
, config
->max_width
);
2582 if ((config
->min_height
> r
->height
) || (r
->height
> config
->max_height
)) {
2583 DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n",
2584 r
->height
, config
->min_height
, config
->max_height
);
2588 ret
= framebuffer_check(r
);
2592 fb
= dev
->mode_config
.funcs
->fb_create(dev
, file_priv
, r
);
2594 DRM_DEBUG_KMS("could not create framebuffer\n");
2598 mutex_lock(&file_priv
->fbs_lock
);
2599 r
->fb_id
= fb
->base
.id
;
2600 list_add(&fb
->filp_head
, &file_priv
->fbs
);
2601 DRM_DEBUG_KMS("[FB:%d]\n", fb
->base
.id
);
2602 mutex_unlock(&file_priv
->fbs_lock
);
2609 * drm_mode_rmfb - remove an FB from the configuration
2610 * @dev: drm device for the ioctl
2611 * @data: data pointer for the ioctl
2612 * @file_priv: drm file for the ioctl call
2614 * Remove the FB specified by the user.
2616 * Called by the user via ioctl.
2619 * Zero on success, errno on failure.
2621 int drm_mode_rmfb(struct drm_device
*dev
,
2622 void *data
, struct drm_file
*file_priv
)
2624 struct drm_framebuffer
*fb
= NULL
;
2625 struct drm_framebuffer
*fbl
= NULL
;
2626 uint32_t *id
= data
;
2629 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2632 mutex_lock(&file_priv
->fbs_lock
);
2633 mutex_lock(&dev
->mode_config
.fb_lock
);
2634 fb
= __drm_framebuffer_lookup(dev
, *id
);
2638 list_for_each_entry(fbl
, &file_priv
->fbs
, filp_head
)
2644 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
2645 __drm_framebuffer_unregister(dev
, fb
);
2647 list_del_init(&fb
->filp_head
);
2648 mutex_unlock(&dev
->mode_config
.fb_lock
);
2649 mutex_unlock(&file_priv
->fbs_lock
);
2651 drm_framebuffer_remove(fb
);
2656 mutex_unlock(&dev
->mode_config
.fb_lock
);
2657 mutex_unlock(&file_priv
->fbs_lock
);
2663 * drm_mode_getfb - get FB info
2664 * @dev: drm device for the ioctl
2665 * @data: data pointer for the ioctl
2666 * @file_priv: drm file for the ioctl call
2668 * Lookup the FB given its ID and return info about it.
2670 * Called by the user via ioctl.
2673 * Zero on success, errno on failure.
2675 int drm_mode_getfb(struct drm_device
*dev
,
2676 void *data
, struct drm_file
*file_priv
)
2678 struct drm_mode_fb_cmd
*r
= data
;
2679 struct drm_framebuffer
*fb
;
2682 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2685 fb
= drm_framebuffer_lookup(dev
, r
->fb_id
);
2689 r
->height
= fb
->height
;
2690 r
->width
= fb
->width
;
2691 r
->depth
= fb
->depth
;
2692 r
->bpp
= fb
->bits_per_pixel
;
2693 r
->pitch
= fb
->pitches
[0];
2694 if (fb
->funcs
->create_handle
) {
2695 if (file_priv
->is_master
|| capable(CAP_SYS_ADMIN
)) {
2696 ret
= fb
->funcs
->create_handle(fb
, file_priv
,
2699 /* GET_FB() is an unprivileged ioctl so we must not
2700 * return a buffer-handle to non-master processes! For
2701 * backwards-compatibility reasons, we cannot make
2702 * GET_FB() privileged, so just return an invalid handle
2703 * for non-masters. */
2711 drm_framebuffer_unreference(fb
);
2716 int drm_mode_dirtyfb_ioctl(struct drm_device
*dev
,
2717 void *data
, struct drm_file
*file_priv
)
2719 struct drm_clip_rect __user
*clips_ptr
;
2720 struct drm_clip_rect
*clips
= NULL
;
2721 struct drm_mode_fb_dirty_cmd
*r
= data
;
2722 struct drm_framebuffer
*fb
;
2727 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2730 fb
= drm_framebuffer_lookup(dev
, r
->fb_id
);
2734 num_clips
= r
->num_clips
;
2735 clips_ptr
= (struct drm_clip_rect __user
*)(unsigned long)r
->clips_ptr
;
2737 if (!num_clips
!= !clips_ptr
) {
2742 flags
= DRM_MODE_FB_DIRTY_FLAGS
& r
->flags
;
2744 /* If userspace annotates copy, clips must come in pairs */
2745 if (flags
& DRM_MODE_FB_DIRTY_ANNOTATE_COPY
&& (num_clips
% 2)) {
2750 if (num_clips
&& clips_ptr
) {
2751 if (num_clips
< 0 || num_clips
> DRM_MODE_FB_DIRTY_MAX_CLIPS
) {
2755 clips
= kzalloc(num_clips
* sizeof(*clips
), GFP_KERNEL
);
2761 ret
= copy_from_user(clips
, clips_ptr
,
2762 num_clips
* sizeof(*clips
));
2769 if (fb
->funcs
->dirty
) {
2770 drm_modeset_lock_all(dev
);
2771 ret
= fb
->funcs
->dirty(fb
, file_priv
, flags
, r
->color
,
2773 drm_modeset_unlock_all(dev
);
2781 drm_framebuffer_unreference(fb
);
2788 * drm_fb_release - remove and free the FBs on this file
2789 * @priv: drm file for the ioctl
2791 * Destroy all the FBs associated with @filp.
2793 * Called by the user via ioctl.
2796 * Zero on success, errno on failure.
2798 void drm_fb_release(struct drm_file
*priv
)
2800 struct drm_device
*dev
= priv
->minor
->dev
;
2801 struct drm_framebuffer
*fb
, *tfb
;
2803 mutex_lock(&priv
->fbs_lock
);
2804 list_for_each_entry_safe(fb
, tfb
, &priv
->fbs
, filp_head
) {
2806 mutex_lock(&dev
->mode_config
.fb_lock
);
2807 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
2808 __drm_framebuffer_unregister(dev
, fb
);
2809 mutex_unlock(&dev
->mode_config
.fb_lock
);
2811 list_del_init(&fb
->filp_head
);
2813 /* This will also drop the fpriv->fbs reference. */
2814 drm_framebuffer_remove(fb
);
2816 mutex_unlock(&priv
->fbs_lock
);
2819 struct drm_property
*drm_property_create(struct drm_device
*dev
, int flags
,
2820 const char *name
, int num_values
)
2822 struct drm_property
*property
= NULL
;
2825 property
= kzalloc(sizeof(struct drm_property
), GFP_KERNEL
);
2830 property
->values
= kzalloc(sizeof(uint64_t)*num_values
, GFP_KERNEL
);
2831 if (!property
->values
)
2835 ret
= drm_mode_object_get(dev
, &property
->base
, DRM_MODE_OBJECT_PROPERTY
);
2839 property
->flags
= flags
;
2840 property
->num_values
= num_values
;
2841 INIT_LIST_HEAD(&property
->enum_blob_list
);
2844 strncpy(property
->name
, name
, DRM_PROP_NAME_LEN
);
2845 property
->name
[DRM_PROP_NAME_LEN
-1] = '\0';
2848 list_add_tail(&property
->head
, &dev
->mode_config
.property_list
);
2851 kfree(property
->values
);
2855 EXPORT_SYMBOL(drm_property_create
);
2857 struct drm_property
*drm_property_create_enum(struct drm_device
*dev
, int flags
,
2859 const struct drm_prop_enum_list
*props
,
2862 struct drm_property
*property
;
2865 flags
|= DRM_MODE_PROP_ENUM
;
2867 property
= drm_property_create(dev
, flags
, name
, num_values
);
2871 for (i
= 0; i
< num_values
; i
++) {
2872 ret
= drm_property_add_enum(property
, i
,
2876 drm_property_destroy(dev
, property
);
2883 EXPORT_SYMBOL(drm_property_create_enum
);
2885 struct drm_property
*drm_property_create_bitmask(struct drm_device
*dev
,
2886 int flags
, const char *name
,
2887 const struct drm_prop_enum_list
*props
,
2890 struct drm_property
*property
;
2893 flags
|= DRM_MODE_PROP_BITMASK
;
2895 property
= drm_property_create(dev
, flags
, name
, num_values
);
2899 for (i
= 0; i
< num_values
; i
++) {
2900 ret
= drm_property_add_enum(property
, i
,
2904 drm_property_destroy(dev
, property
);
2911 EXPORT_SYMBOL(drm_property_create_bitmask
);
2913 struct drm_property
*drm_property_create_range(struct drm_device
*dev
, int flags
,
2915 uint64_t min
, uint64_t max
)
2917 struct drm_property
*property
;
2919 flags
|= DRM_MODE_PROP_RANGE
;
2921 property
= drm_property_create(dev
, flags
, name
, 2);
2925 property
->values
[0] = min
;
2926 property
->values
[1] = max
;
2930 EXPORT_SYMBOL(drm_property_create_range
);
2932 int drm_property_add_enum(struct drm_property
*property
, int index
,
2933 uint64_t value
, const char *name
)
2935 struct drm_property_enum
*prop_enum
;
2937 if (!(property
->flags
& (DRM_MODE_PROP_ENUM
| DRM_MODE_PROP_BITMASK
)))
2941 * Bitmask enum properties have the additional constraint of values
2944 if ((property
->flags
& DRM_MODE_PROP_BITMASK
) && (value
> 63))
2947 if (!list_empty(&property
->enum_blob_list
)) {
2948 list_for_each_entry(prop_enum
, &property
->enum_blob_list
, head
) {
2949 if (prop_enum
->value
== value
) {
2950 strncpy(prop_enum
->name
, name
, DRM_PROP_NAME_LEN
);
2951 prop_enum
->name
[DRM_PROP_NAME_LEN
-1] = '\0';
2957 prop_enum
= kzalloc(sizeof(struct drm_property_enum
), GFP_KERNEL
);
2961 strncpy(prop_enum
->name
, name
, DRM_PROP_NAME_LEN
);
2962 prop_enum
->name
[DRM_PROP_NAME_LEN
-1] = '\0';
2963 prop_enum
->value
= value
;
2965 property
->values
[index
] = value
;
2966 list_add_tail(&prop_enum
->head
, &property
->enum_blob_list
);
2969 EXPORT_SYMBOL(drm_property_add_enum
);
2971 void drm_property_destroy(struct drm_device
*dev
, struct drm_property
*property
)
2973 struct drm_property_enum
*prop_enum
, *pt
;
2975 list_for_each_entry_safe(prop_enum
, pt
, &property
->enum_blob_list
, head
) {
2976 list_del(&prop_enum
->head
);
2980 if (property
->num_values
)
2981 kfree(property
->values
);
2982 drm_mode_object_put(dev
, &property
->base
);
2983 list_del(&property
->head
);
2986 EXPORT_SYMBOL(drm_property_destroy
);
2988 void drm_object_attach_property(struct drm_mode_object
*obj
,
2989 struct drm_property
*property
,
2992 int count
= obj
->properties
->count
;
2994 if (count
== DRM_OBJECT_MAX_PROPERTY
) {
2995 WARN(1, "Failed to attach object property (type: 0x%x). Please "
2996 "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time "
2997 "you see this message on the same object type.\n",
3002 obj
->properties
->ids
[count
] = property
->base
.id
;
3003 obj
->properties
->values
[count
] = init_val
;
3004 obj
->properties
->count
++;
3006 EXPORT_SYMBOL(drm_object_attach_property
);
3008 int drm_object_property_set_value(struct drm_mode_object
*obj
,
3009 struct drm_property
*property
, uint64_t val
)
3013 for (i
= 0; i
< obj
->properties
->count
; i
++) {
3014 if (obj
->properties
->ids
[i
] == property
->base
.id
) {
3015 obj
->properties
->values
[i
] = val
;
3022 EXPORT_SYMBOL(drm_object_property_set_value
);
3024 int drm_object_property_get_value(struct drm_mode_object
*obj
,
3025 struct drm_property
*property
, uint64_t *val
)
3029 for (i
= 0; i
< obj
->properties
->count
; i
++) {
3030 if (obj
->properties
->ids
[i
] == property
->base
.id
) {
3031 *val
= obj
->properties
->values
[i
];
3038 EXPORT_SYMBOL(drm_object_property_get_value
);
3040 int drm_mode_getproperty_ioctl(struct drm_device
*dev
,
3041 void *data
, struct drm_file
*file_priv
)
3043 struct drm_mode_object
*obj
;
3044 struct drm_mode_get_property
*out_resp
= data
;
3045 struct drm_property
*property
;
3048 int value_count
= 0;
3051 struct drm_property_enum
*prop_enum
;
3052 struct drm_mode_property_enum __user
*enum_ptr
;
3053 struct drm_property_blob
*prop_blob
;
3054 uint32_t __user
*blob_id_ptr
;
3055 uint64_t __user
*values_ptr
;
3056 uint32_t __user
*blob_length_ptr
;
3058 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
3061 drm_modeset_lock_all(dev
);
3062 obj
= drm_mode_object_find(dev
, out_resp
->prop_id
, DRM_MODE_OBJECT_PROPERTY
);
3067 property
= obj_to_property(obj
);
3069 if (property
->flags
& (DRM_MODE_PROP_ENUM
| DRM_MODE_PROP_BITMASK
)) {
3070 list_for_each_entry(prop_enum
, &property
->enum_blob_list
, head
)
3072 } else if (property
->flags
& DRM_MODE_PROP_BLOB
) {
3073 list_for_each_entry(prop_blob
, &property
->enum_blob_list
, head
)
3077 value_count
= property
->num_values
;
3079 strncpy(out_resp
->name
, property
->name
, DRM_PROP_NAME_LEN
);
3080 out_resp
->name
[DRM_PROP_NAME_LEN
-1] = 0;
3081 out_resp
->flags
= property
->flags
;
3083 if ((out_resp
->count_values
>= value_count
) && value_count
) {
3084 values_ptr
= (uint64_t __user
*)(unsigned long)out_resp
->values_ptr
;
3085 for (i
= 0; i
< value_count
; i
++) {
3086 if (copy_to_user(values_ptr
+ i
, &property
->values
[i
], sizeof(uint64_t))) {
3092 out_resp
->count_values
= value_count
;
3094 if (property
->flags
& (DRM_MODE_PROP_ENUM
| DRM_MODE_PROP_BITMASK
)) {
3095 if ((out_resp
->count_enum_blobs
>= enum_count
) && enum_count
) {
3097 enum_ptr
= (struct drm_mode_property_enum __user
*)(unsigned long)out_resp
->enum_blob_ptr
;
3098 list_for_each_entry(prop_enum
, &property
->enum_blob_list
, head
) {
3100 if (copy_to_user(&enum_ptr
[copied
].value
, &prop_enum
->value
, sizeof(uint64_t))) {
3105 if (copy_to_user(&enum_ptr
[copied
].name
,
3106 &prop_enum
->name
, DRM_PROP_NAME_LEN
)) {
3113 out_resp
->count_enum_blobs
= enum_count
;
3116 if (property
->flags
& DRM_MODE_PROP_BLOB
) {
3117 if ((out_resp
->count_enum_blobs
>= blob_count
) && blob_count
) {
3119 blob_id_ptr
= (uint32_t __user
*)(unsigned long)out_resp
->enum_blob_ptr
;
3120 blob_length_ptr
= (uint32_t __user
*)(unsigned long)out_resp
->values_ptr
;
3122 list_for_each_entry(prop_blob
, &property
->enum_blob_list
, head
) {
3123 if (put_user(prop_blob
->base
.id
, blob_id_ptr
+ copied
)) {
3128 if (put_user(prop_blob
->length
, blob_length_ptr
+ copied
)) {
3136 out_resp
->count_enum_blobs
= blob_count
;
3139 drm_modeset_unlock_all(dev
);
3143 static struct drm_property_blob
*drm_property_create_blob(struct drm_device
*dev
, int length
,
3146 struct drm_property_blob
*blob
;
3149 if (!length
|| !data
)
3152 blob
= kzalloc(sizeof(struct drm_property_blob
)+length
, GFP_KERNEL
);
3156 ret
= drm_mode_object_get(dev
, &blob
->base
, DRM_MODE_OBJECT_BLOB
);
3162 blob
->length
= length
;
3164 memcpy(blob
->data
, data
, length
);
3166 list_add_tail(&blob
->head
, &dev
->mode_config
.property_blob_list
);
3170 static void drm_property_destroy_blob(struct drm_device
*dev
,
3171 struct drm_property_blob
*blob
)
3173 drm_mode_object_put(dev
, &blob
->base
);
3174 list_del(&blob
->head
);
3178 int drm_mode_getblob_ioctl(struct drm_device
*dev
,
3179 void *data
, struct drm_file
*file_priv
)
3181 struct drm_mode_object
*obj
;
3182 struct drm_mode_get_blob
*out_resp
= data
;
3183 struct drm_property_blob
*blob
;
3185 void __user
*blob_ptr
;
3187 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
3190 drm_modeset_lock_all(dev
);
3191 obj
= drm_mode_object_find(dev
, out_resp
->blob_id
, DRM_MODE_OBJECT_BLOB
);
3196 blob
= obj_to_blob(obj
);
3198 if (out_resp
->length
== blob
->length
) {
3199 blob_ptr
= (void __user
*)(unsigned long)out_resp
->data
;
3200 if (copy_to_user(blob_ptr
, blob
->data
, blob
->length
)){
3205 out_resp
->length
= blob
->length
;
3208 drm_modeset_unlock_all(dev
);
3212 int drm_mode_connector_update_edid_property(struct drm_connector
*connector
,
3215 struct drm_device
*dev
= connector
->dev
;
3218 if (connector
->edid_blob_ptr
)
3219 drm_property_destroy_blob(dev
, connector
->edid_blob_ptr
);
3221 /* Delete edid, when there is none. */
3223 connector
->edid_blob_ptr
= NULL
;
3224 ret
= drm_object_property_set_value(&connector
->base
, dev
->mode_config
.edid_property
, 0);
3228 size
= EDID_LENGTH
* (1 + edid
->extensions
);
3229 connector
->edid_blob_ptr
= drm_property_create_blob(connector
->dev
,
3231 if (!connector
->edid_blob_ptr
)
3234 ret
= drm_object_property_set_value(&connector
->base
,
3235 dev
->mode_config
.edid_property
,
3236 connector
->edid_blob_ptr
->base
.id
);
3240 EXPORT_SYMBOL(drm_mode_connector_update_edid_property
);
3242 static bool drm_property_change_is_valid(struct drm_property
*property
,
3245 if (property
->flags
& DRM_MODE_PROP_IMMUTABLE
)
3247 if (property
->flags
& DRM_MODE_PROP_RANGE
) {
3248 if (value
< property
->values
[0] || value
> property
->values
[1])
3251 } else if (property
->flags
& DRM_MODE_PROP_BITMASK
) {
3253 uint64_t valid_mask
= 0;
3254 for (i
= 0; i
< property
->num_values
; i
++)
3255 valid_mask
|= (1ULL << property
->values
[i
]);
3256 return !(value
& ~valid_mask
);
3257 } else if (property
->flags
& DRM_MODE_PROP_BLOB
) {
3258 /* Only the driver knows */
3262 for (i
= 0; i
< property
->num_values
; i
++)
3263 if (property
->values
[i
] == value
)
3269 int drm_mode_connector_property_set_ioctl(struct drm_device
*dev
,
3270 void *data
, struct drm_file
*file_priv
)
3272 struct drm_mode_connector_set_property
*conn_set_prop
= data
;
3273 struct drm_mode_obj_set_property obj_set_prop
= {
3274 .value
= conn_set_prop
->value
,
3275 .prop_id
= conn_set_prop
->prop_id
,
3276 .obj_id
= conn_set_prop
->connector_id
,
3277 .obj_type
= DRM_MODE_OBJECT_CONNECTOR
3280 /* It does all the locking and checking we need */
3281 return drm_mode_obj_set_property_ioctl(dev
, &obj_set_prop
, file_priv
);
3284 static int drm_mode_connector_set_obj_prop(struct drm_mode_object
*obj
,
3285 struct drm_property
*property
,
3289 struct drm_connector
*connector
= obj_to_connector(obj
);
3291 /* Do DPMS ourselves */
3292 if (property
== connector
->dev
->mode_config
.dpms_property
) {
3293 if (connector
->funcs
->dpms
)
3294 (*connector
->funcs
->dpms
)(connector
, (int)value
);
3296 } else if (connector
->funcs
->set_property
)
3297 ret
= connector
->funcs
->set_property(connector
, property
, value
);
3299 /* store the property value if successful */
3301 drm_object_property_set_value(&connector
->base
, property
, value
);
3305 static int drm_mode_crtc_set_obj_prop(struct drm_mode_object
*obj
,
3306 struct drm_property
*property
,
3310 struct drm_crtc
*crtc
= obj_to_crtc(obj
);
3312 if (crtc
->funcs
->set_property
)
3313 ret
= crtc
->funcs
->set_property(crtc
, property
, value
);
3315 drm_object_property_set_value(obj
, property
, value
);
3320 static int drm_mode_plane_set_obj_prop(struct drm_mode_object
*obj
,
3321 struct drm_property
*property
,
3325 struct drm_plane
*plane
= obj_to_plane(obj
);
3327 if (plane
->funcs
->set_property
)
3328 ret
= plane
->funcs
->set_property(plane
, property
, value
);
3330 drm_object_property_set_value(obj
, property
, value
);
3335 int drm_mode_obj_get_properties_ioctl(struct drm_device
*dev
, void *data
,
3336 struct drm_file
*file_priv
)
3338 struct drm_mode_obj_get_properties
*arg
= data
;
3339 struct drm_mode_object
*obj
;
3343 int props_count
= 0;
3344 uint32_t __user
*props_ptr
;
3345 uint64_t __user
*prop_values_ptr
;
3347 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
3350 drm_modeset_lock_all(dev
);
3352 obj
= drm_mode_object_find(dev
, arg
->obj_id
, arg
->obj_type
);
3357 if (!obj
->properties
) {
3362 props_count
= obj
->properties
->count
;
3364 /* This ioctl is called twice, once to determine how much space is
3365 * needed, and the 2nd time to fill it. */
3366 if ((arg
->count_props
>= props_count
) && props_count
) {
3368 props_ptr
= (uint32_t __user
*)(unsigned long)(arg
->props_ptr
);
3369 prop_values_ptr
= (uint64_t __user
*)(unsigned long)
3370 (arg
->prop_values_ptr
);
3371 for (i
= 0; i
< props_count
; i
++) {
3372 if (put_user(obj
->properties
->ids
[i
],
3373 props_ptr
+ copied
)) {
3377 if (put_user(obj
->properties
->values
[i
],
3378 prop_values_ptr
+ copied
)) {
3385 arg
->count_props
= props_count
;
3387 drm_modeset_unlock_all(dev
);
3391 int drm_mode_obj_set_property_ioctl(struct drm_device
*dev
, void *data
,
3392 struct drm_file
*file_priv
)
3394 struct drm_mode_obj_set_property
*arg
= data
;
3395 struct drm_mode_object
*arg_obj
;
3396 struct drm_mode_object
*prop_obj
;
3397 struct drm_property
*property
;
3401 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
3404 drm_modeset_lock_all(dev
);
3406 arg_obj
= drm_mode_object_find(dev
, arg
->obj_id
, arg
->obj_type
);
3411 if (!arg_obj
->properties
)
3414 for (i
= 0; i
< arg_obj
->properties
->count
; i
++)
3415 if (arg_obj
->properties
->ids
[i
] == arg
->prop_id
)
3418 if (i
== arg_obj
->properties
->count
)
3421 prop_obj
= drm_mode_object_find(dev
, arg
->prop_id
,
3422 DRM_MODE_OBJECT_PROPERTY
);
3427 property
= obj_to_property(prop_obj
);
3429 if (!drm_property_change_is_valid(property
, arg
->value
))
3432 switch (arg_obj
->type
) {
3433 case DRM_MODE_OBJECT_CONNECTOR
:
3434 ret
= drm_mode_connector_set_obj_prop(arg_obj
, property
,
3437 case DRM_MODE_OBJECT_CRTC
:
3438 ret
= drm_mode_crtc_set_obj_prop(arg_obj
, property
, arg
->value
);
3440 case DRM_MODE_OBJECT_PLANE
:
3441 ret
= drm_mode_plane_set_obj_prop(arg_obj
, property
, arg
->value
);
3446 drm_modeset_unlock_all(dev
);
3450 int drm_mode_connector_attach_encoder(struct drm_connector
*connector
,
3451 struct drm_encoder
*encoder
)
3455 for (i
= 0; i
< DRM_CONNECTOR_MAX_ENCODER
; i
++) {
3456 if (connector
->encoder_ids
[i
] == 0) {
3457 connector
->encoder_ids
[i
] = encoder
->base
.id
;
3463 EXPORT_SYMBOL(drm_mode_connector_attach_encoder
);
3465 void drm_mode_connector_detach_encoder(struct drm_connector
*connector
,
3466 struct drm_encoder
*encoder
)
3469 for (i
= 0; i
< DRM_CONNECTOR_MAX_ENCODER
; i
++) {
3470 if (connector
->encoder_ids
[i
] == encoder
->base
.id
) {
3471 connector
->encoder_ids
[i
] = 0;
3472 if (connector
->encoder
== encoder
)
3473 connector
->encoder
= NULL
;
3478 EXPORT_SYMBOL(drm_mode_connector_detach_encoder
);
3480 int drm_mode_crtc_set_gamma_size(struct drm_crtc
*crtc
,
3483 crtc
->gamma_size
= gamma_size
;
3485 crtc
->gamma_store
= kzalloc(gamma_size
* sizeof(uint16_t) * 3, GFP_KERNEL
);
3486 if (!crtc
->gamma_store
) {
3487 crtc
->gamma_size
= 0;
3493 EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size
);
3495 int drm_mode_gamma_set_ioctl(struct drm_device
*dev
,
3496 void *data
, struct drm_file
*file_priv
)
3498 struct drm_mode_crtc_lut
*crtc_lut
= data
;
3499 struct drm_mode_object
*obj
;
3500 struct drm_crtc
*crtc
;
3501 void *r_base
, *g_base
, *b_base
;
3505 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
3508 drm_modeset_lock_all(dev
);
3509 obj
= drm_mode_object_find(dev
, crtc_lut
->crtc_id
, DRM_MODE_OBJECT_CRTC
);
3514 crtc
= obj_to_crtc(obj
);
3516 if (crtc
->funcs
->gamma_set
== NULL
) {
3521 /* memcpy into gamma store */
3522 if (crtc_lut
->gamma_size
!= crtc
->gamma_size
) {
3527 size
= crtc_lut
->gamma_size
* (sizeof(uint16_t));
3528 r_base
= crtc
->gamma_store
;
3529 if (copy_from_user(r_base
, (void __user
*)(unsigned long)crtc_lut
->red
, size
)) {
3534 g_base
= r_base
+ size
;
3535 if (copy_from_user(g_base
, (void __user
*)(unsigned long)crtc_lut
->green
, size
)) {
3540 b_base
= g_base
+ size
;
3541 if (copy_from_user(b_base
, (void __user
*)(unsigned long)crtc_lut
->blue
, size
)) {
3546 crtc
->funcs
->gamma_set(crtc
, r_base
, g_base
, b_base
, 0, crtc
->gamma_size
);
3549 drm_modeset_unlock_all(dev
);
3554 int drm_mode_gamma_get_ioctl(struct drm_device
*dev
,
3555 void *data
, struct drm_file
*file_priv
)
3557 struct drm_mode_crtc_lut
*crtc_lut
= data
;
3558 struct drm_mode_object
*obj
;
3559 struct drm_crtc
*crtc
;
3560 void *r_base
, *g_base
, *b_base
;
3564 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
3567 drm_modeset_lock_all(dev
);
3568 obj
= drm_mode_object_find(dev
, crtc_lut
->crtc_id
, DRM_MODE_OBJECT_CRTC
);
3573 crtc
= obj_to_crtc(obj
);
3575 /* memcpy into gamma store */
3576 if (crtc_lut
->gamma_size
!= crtc
->gamma_size
) {
3581 size
= crtc_lut
->gamma_size
* (sizeof(uint16_t));
3582 r_base
= crtc
->gamma_store
;
3583 if (copy_to_user((void __user
*)(unsigned long)crtc_lut
->red
, r_base
, size
)) {
3588 g_base
= r_base
+ size
;
3589 if (copy_to_user((void __user
*)(unsigned long)crtc_lut
->green
, g_base
, size
)) {
3594 b_base
= g_base
+ size
;
3595 if (copy_to_user((void __user
*)(unsigned long)crtc_lut
->blue
, b_base
, size
)) {
3600 drm_modeset_unlock_all(dev
);
3604 int drm_mode_page_flip_ioctl(struct drm_device
*dev
,
3605 void *data
, struct drm_file
*file_priv
)
3607 struct drm_mode_crtc_page_flip
*page_flip
= data
;
3608 struct drm_mode_object
*obj
;
3609 struct drm_crtc
*crtc
;
3610 struct drm_framebuffer
*fb
= NULL
, *old_fb
= NULL
;
3611 struct drm_pending_vblank_event
*e
= NULL
;
3612 unsigned long flags
;
3615 if (page_flip
->flags
& ~DRM_MODE_PAGE_FLIP_FLAGS
||
3616 page_flip
->reserved
!= 0)
3619 if ((page_flip
->flags
& DRM_MODE_PAGE_FLIP_ASYNC
) && !dev
->mode_config
.async_page_flip
)
3622 obj
= drm_mode_object_find(dev
, page_flip
->crtc_id
, DRM_MODE_OBJECT_CRTC
);
3625 crtc
= obj_to_crtc(obj
);
3627 mutex_lock(&crtc
->mutex
);
3628 if (crtc
->fb
== NULL
) {
3629 /* The framebuffer is currently unbound, presumably
3630 * due to a hotplug event, that userspace has not
3637 if (crtc
->funcs
->page_flip
== NULL
)
3640 fb
= drm_framebuffer_lookup(dev
, page_flip
->fb_id
);
3646 ret
= drm_crtc_check_viewport(crtc
, crtc
->x
, crtc
->y
, &crtc
->mode
, fb
);
3650 if (crtc
->fb
->pixel_format
!= fb
->pixel_format
) {
3651 DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n");
3656 if (page_flip
->flags
& DRM_MODE_PAGE_FLIP_EVENT
) {
3658 spin_lock_irqsave(&dev
->event_lock
, flags
);
3659 if (file_priv
->event_space
< sizeof e
->event
) {
3660 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
3663 file_priv
->event_space
-= sizeof e
->event
;
3664 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
3666 e
= kzalloc(sizeof *e
, GFP_KERNEL
);
3668 spin_lock_irqsave(&dev
->event_lock
, flags
);
3669 file_priv
->event_space
+= sizeof e
->event
;
3670 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
3674 e
->event
.base
.type
= DRM_EVENT_FLIP_COMPLETE
;
3675 e
->event
.base
.length
= sizeof e
->event
;
3676 e
->event
.user_data
= page_flip
->user_data
;
3677 e
->base
.event
= &e
->event
.base
;
3678 e
->base
.file_priv
= file_priv
;
3680 (void (*) (struct drm_pending_event
*)) kfree
;
3684 ret
= crtc
->funcs
->page_flip(crtc
, fb
, e
, page_flip
->flags
);
3686 if (page_flip
->flags
& DRM_MODE_PAGE_FLIP_EVENT
) {
3687 spin_lock_irqsave(&dev
->event_lock
, flags
);
3688 file_priv
->event_space
+= sizeof e
->event
;
3689 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
3692 /* Keep the old fb, don't unref it. */
3696 * Warn if the driver hasn't properly updated the crtc->fb
3697 * field to reflect that the new framebuffer is now used.
3698 * Failing to do so will screw with the reference counting
3701 WARN_ON(crtc
->fb
!= fb
);
3702 /* Unref only the old framebuffer. */
3708 drm_framebuffer_unreference(fb
);
3710 drm_framebuffer_unreference(old_fb
);
3711 mutex_unlock(&crtc
->mutex
);
3716 void drm_mode_config_reset(struct drm_device
*dev
)
3718 struct drm_crtc
*crtc
;
3719 struct drm_encoder
*encoder
;
3720 struct drm_connector
*connector
;
3722 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
)
3723 if (crtc
->funcs
->reset
)
3724 crtc
->funcs
->reset(crtc
);
3726 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
)
3727 if (encoder
->funcs
->reset
)
3728 encoder
->funcs
->reset(encoder
);
3730 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
3731 connector
->status
= connector_status_unknown
;
3733 if (connector
->funcs
->reset
)
3734 connector
->funcs
->reset(connector
);
3737 EXPORT_SYMBOL(drm_mode_config_reset
);
3739 int drm_mode_create_dumb_ioctl(struct drm_device
*dev
,
3740 void *data
, struct drm_file
*file_priv
)
3742 struct drm_mode_create_dumb
*args
= data
;
3744 if (!dev
->driver
->dumb_create
)
3746 return dev
->driver
->dumb_create(file_priv
, dev
, args
);
3749 int drm_mode_mmap_dumb_ioctl(struct drm_device
*dev
,
3750 void *data
, struct drm_file
*file_priv
)
3752 struct drm_mode_map_dumb
*args
= data
;
3754 /* call driver ioctl to get mmap offset */
3755 if (!dev
->driver
->dumb_map_offset
)
3758 return dev
->driver
->dumb_map_offset(file_priv
, dev
, args
->handle
, &args
->offset
);
3761 int drm_mode_destroy_dumb_ioctl(struct drm_device
*dev
,
3762 void *data
, struct drm_file
*file_priv
)
3764 struct drm_mode_destroy_dumb
*args
= data
;
3766 if (!dev
->driver
->dumb_destroy
)
3769 return dev
->driver
->dumb_destroy(file_priv
, dev
, args
->handle
);
3773 * Just need to support RGB formats here for compat with code that doesn't
3774 * use pixel formats directly yet.
3776 void drm_fb_get_bpp_depth(uint32_t format
, unsigned int *depth
,
3781 case DRM_FORMAT_RGB332
:
3782 case DRM_FORMAT_BGR233
:
3786 case DRM_FORMAT_XRGB1555
:
3787 case DRM_FORMAT_XBGR1555
:
3788 case DRM_FORMAT_RGBX5551
:
3789 case DRM_FORMAT_BGRX5551
:
3790 case DRM_FORMAT_ARGB1555
:
3791 case DRM_FORMAT_ABGR1555
:
3792 case DRM_FORMAT_RGBA5551
:
3793 case DRM_FORMAT_BGRA5551
:
3797 case DRM_FORMAT_RGB565
:
3798 case DRM_FORMAT_BGR565
:
3802 case DRM_FORMAT_RGB888
:
3803 case DRM_FORMAT_BGR888
:
3807 case DRM_FORMAT_XRGB8888
:
3808 case DRM_FORMAT_XBGR8888
:
3809 case DRM_FORMAT_RGBX8888
:
3810 case DRM_FORMAT_BGRX8888
:
3814 case DRM_FORMAT_XRGB2101010
:
3815 case DRM_FORMAT_XBGR2101010
:
3816 case DRM_FORMAT_RGBX1010102
:
3817 case DRM_FORMAT_BGRX1010102
:
3818 case DRM_FORMAT_ARGB2101010
:
3819 case DRM_FORMAT_ABGR2101010
:
3820 case DRM_FORMAT_RGBA1010102
:
3821 case DRM_FORMAT_BGRA1010102
:
3825 case DRM_FORMAT_ARGB8888
:
3826 case DRM_FORMAT_ABGR8888
:
3827 case DRM_FORMAT_RGBA8888
:
3828 case DRM_FORMAT_BGRA8888
:
3833 DRM_DEBUG_KMS("unsupported pixel format %s\n",
3834 drm_get_format_name(format
));
3840 EXPORT_SYMBOL(drm_fb_get_bpp_depth
);
3843 * drm_format_num_planes - get the number of planes for format
3844 * @format: pixel format (DRM_FORMAT_*)
3847 * The number of planes used by the specified pixel format.
3849 int drm_format_num_planes(uint32_t format
)
3852 case DRM_FORMAT_YUV410
:
3853 case DRM_FORMAT_YVU410
:
3854 case DRM_FORMAT_YUV411
:
3855 case DRM_FORMAT_YVU411
:
3856 case DRM_FORMAT_YUV420
:
3857 case DRM_FORMAT_YVU420
:
3858 case DRM_FORMAT_YUV422
:
3859 case DRM_FORMAT_YVU422
:
3860 case DRM_FORMAT_YUV444
:
3861 case DRM_FORMAT_YVU444
:
3863 case DRM_FORMAT_NV12
:
3864 case DRM_FORMAT_NV21
:
3865 case DRM_FORMAT_NV16
:
3866 case DRM_FORMAT_NV61
:
3867 case DRM_FORMAT_NV24
:
3868 case DRM_FORMAT_NV42
:
3874 EXPORT_SYMBOL(drm_format_num_planes
);
3877 * drm_format_plane_cpp - determine the bytes per pixel value
3878 * @format: pixel format (DRM_FORMAT_*)
3879 * @plane: plane index
3882 * The bytes per pixel value for the specified plane.
3884 int drm_format_plane_cpp(uint32_t format
, int plane
)
3889 if (plane
>= drm_format_num_planes(format
))
3893 case DRM_FORMAT_YUYV
:
3894 case DRM_FORMAT_YVYU
:
3895 case DRM_FORMAT_UYVY
:
3896 case DRM_FORMAT_VYUY
:
3898 case DRM_FORMAT_NV12
:
3899 case DRM_FORMAT_NV21
:
3900 case DRM_FORMAT_NV16
:
3901 case DRM_FORMAT_NV61
:
3902 case DRM_FORMAT_NV24
:
3903 case DRM_FORMAT_NV42
:
3904 return plane
? 2 : 1;
3905 case DRM_FORMAT_YUV410
:
3906 case DRM_FORMAT_YVU410
:
3907 case DRM_FORMAT_YUV411
:
3908 case DRM_FORMAT_YVU411
:
3909 case DRM_FORMAT_YUV420
:
3910 case DRM_FORMAT_YVU420
:
3911 case DRM_FORMAT_YUV422
:
3912 case DRM_FORMAT_YVU422
:
3913 case DRM_FORMAT_YUV444
:
3914 case DRM_FORMAT_YVU444
:
3917 drm_fb_get_bpp_depth(format
, &depth
, &bpp
);
3921 EXPORT_SYMBOL(drm_format_plane_cpp
);
3924 * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor
3925 * @format: pixel format (DRM_FORMAT_*)
3928 * The horizontal chroma subsampling factor for the
3929 * specified pixel format.
3931 int drm_format_horz_chroma_subsampling(uint32_t format
)
3934 case DRM_FORMAT_YUV411
:
3935 case DRM_FORMAT_YVU411
:
3936 case DRM_FORMAT_YUV410
:
3937 case DRM_FORMAT_YVU410
:
3939 case DRM_FORMAT_YUYV
:
3940 case DRM_FORMAT_YVYU
:
3941 case DRM_FORMAT_UYVY
:
3942 case DRM_FORMAT_VYUY
:
3943 case DRM_FORMAT_NV12
:
3944 case DRM_FORMAT_NV21
:
3945 case DRM_FORMAT_NV16
:
3946 case DRM_FORMAT_NV61
:
3947 case DRM_FORMAT_YUV422
:
3948 case DRM_FORMAT_YVU422
:
3949 case DRM_FORMAT_YUV420
:
3950 case DRM_FORMAT_YVU420
:
3956 EXPORT_SYMBOL(drm_format_horz_chroma_subsampling
);
3959 * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor
3960 * @format: pixel format (DRM_FORMAT_*)
3963 * The vertical chroma subsampling factor for the
3964 * specified pixel format.
3966 int drm_format_vert_chroma_subsampling(uint32_t format
)
3969 case DRM_FORMAT_YUV410
:
3970 case DRM_FORMAT_YVU410
:
3972 case DRM_FORMAT_YUV420
:
3973 case DRM_FORMAT_YVU420
:
3974 case DRM_FORMAT_NV12
:
3975 case DRM_FORMAT_NV21
:
3981 EXPORT_SYMBOL(drm_format_vert_chroma_subsampling
);
3984 * drm_mode_config_init - initialize DRM mode_configuration structure
3987 * Initialize @dev's mode_config structure, used for tracking the graphics
3988 * configuration of @dev.
3990 * Since this initializes the modeset locks, no locking is possible. Which is no
3991 * problem, since this should happen single threaded at init time. It is the
3992 * driver's problem to ensure this guarantee.
3995 void drm_mode_config_init(struct drm_device
*dev
)
3997 mutex_init(&dev
->mode_config
.mutex
);
3998 mutex_init(&dev
->mode_config
.idr_mutex
);
3999 mutex_init(&dev
->mode_config
.fb_lock
);
4000 INIT_LIST_HEAD(&dev
->mode_config
.fb_list
);
4001 INIT_LIST_HEAD(&dev
->mode_config
.crtc_list
);
4002 INIT_LIST_HEAD(&dev
->mode_config
.connector_list
);
4003 INIT_LIST_HEAD(&dev
->mode_config
.bridge_list
);
4004 INIT_LIST_HEAD(&dev
->mode_config
.encoder_list
);
4005 INIT_LIST_HEAD(&dev
->mode_config
.property_list
);
4006 INIT_LIST_HEAD(&dev
->mode_config
.property_blob_list
);
4007 INIT_LIST_HEAD(&dev
->mode_config
.plane_list
);
4008 idr_init(&dev
->mode_config
.crtc_idr
);
4010 drm_modeset_lock_all(dev
);
4011 drm_mode_create_standard_connector_properties(dev
);
4012 drm_modeset_unlock_all(dev
);
4014 /* Just to be sure */
4015 dev
->mode_config
.num_fb
= 0;
4016 dev
->mode_config
.num_connector
= 0;
4017 dev
->mode_config
.num_crtc
= 0;
4018 dev
->mode_config
.num_encoder
= 0;
4020 EXPORT_SYMBOL(drm_mode_config_init
);
4023 * drm_mode_config_cleanup - free up DRM mode_config info
4026 * Free up all the connectors and CRTCs associated with this DRM device, then
4027 * free up the framebuffers and associated buffer objects.
4029 * Note that since this /should/ happen single-threaded at driver/device
4030 * teardown time, no locking is required. It's the driver's job to ensure that
4031 * this guarantee actually holds true.
4033 * FIXME: cleanup any dangling user buffer objects too
4035 void drm_mode_config_cleanup(struct drm_device
*dev
)
4037 struct drm_connector
*connector
, *ot
;
4038 struct drm_crtc
*crtc
, *ct
;
4039 struct drm_encoder
*encoder
, *enct
;
4040 struct drm_bridge
*bridge
, *brt
;
4041 struct drm_framebuffer
*fb
, *fbt
;
4042 struct drm_property
*property
, *pt
;
4043 struct drm_property_blob
*blob
, *bt
;
4044 struct drm_plane
*plane
, *plt
;
4046 list_for_each_entry_safe(encoder
, enct
, &dev
->mode_config
.encoder_list
,
4048 encoder
->funcs
->destroy(encoder
);
4051 list_for_each_entry_safe(bridge
, brt
,
4052 &dev
->mode_config
.bridge_list
, head
) {
4053 bridge
->funcs
->destroy(bridge
);
4056 list_for_each_entry_safe(connector
, ot
,
4057 &dev
->mode_config
.connector_list
, head
) {
4058 connector
->funcs
->destroy(connector
);
4061 list_for_each_entry_safe(property
, pt
, &dev
->mode_config
.property_list
,
4063 drm_property_destroy(dev
, property
);
4066 list_for_each_entry_safe(blob
, bt
, &dev
->mode_config
.property_blob_list
,
4068 drm_property_destroy_blob(dev
, blob
);
4072 * Single-threaded teardown context, so it's not required to grab the
4073 * fb_lock to protect against concurrent fb_list access. Contrary, it
4074 * would actually deadlock with the drm_framebuffer_cleanup function.
4076 * Also, if there are any framebuffers left, that's a driver leak now,
4077 * so politely WARN about this.
4079 WARN_ON(!list_empty(&dev
->mode_config
.fb_list
));
4080 list_for_each_entry_safe(fb
, fbt
, &dev
->mode_config
.fb_list
, head
) {
4081 drm_framebuffer_remove(fb
);
4084 list_for_each_entry_safe(plane
, plt
, &dev
->mode_config
.plane_list
,
4086 plane
->funcs
->destroy(plane
);
4089 list_for_each_entry_safe(crtc
, ct
, &dev
->mode_config
.crtc_list
, head
) {
4090 crtc
->funcs
->destroy(crtc
);
4093 idr_destroy(&dev
->mode_config
.crtc_idr
);
4095 EXPORT_SYMBOL(drm_mode_config_cleanup
);