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/list.h>
33 #include <linux/slab.h>
34 #include <linux/export.h>
36 #include <drm/drm_crtc.h>
37 #include <drm/drm_edid.h>
38 #include <drm/drm_fourcc.h>
41 * drm_modeset_lock_all - take all modeset locks
44 * This function takes all modeset locks, suitable where a more fine-grained
45 * scheme isn't (yet) implemented.
47 void drm_modeset_lock_all(struct drm_device *dev)
49 struct drm_crtc *crtc;
51 mutex_lock(&dev->mode_config.mutex);
53 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
54 mutex_lock_nest_lock(&crtc->mutex, &dev->mode_config.mutex);
56 EXPORT_SYMBOL(drm_modeset_lock_all);
59 * drm_modeset_unlock_all - drop all modeset locks
62 void drm_modeset_unlock_all(struct drm_device *dev)
64 struct drm_crtc *crtc;
66 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
67 mutex_unlock(&crtc->mutex);
69 mutex_unlock(&dev->mode_config.mutex);
71 EXPORT_SYMBOL(drm_modeset_unlock_all);
74 * drm_warn_on_modeset_not_all_locked - check that all modeset locks are locked
77 void drm_warn_on_modeset_not_all_locked(struct drm_device *dev)
79 struct drm_crtc *crtc;
81 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
82 WARN_ON(!mutex_is_locked(&crtc->mutex));
84 WARN_ON(!mutex_is_locked(&dev->mode_config.mutex));
86 EXPORT_SYMBOL(drm_warn_on_modeset_not_all_locked);
88 /* Avoid boilerplate. I'm tired of typing. */
89 #define DRM_ENUM_NAME_FN(fnname, list) \
90 char *fnname(int val) \
93 for (i = 0; i < ARRAY_SIZE(list); i++) { \
94 if (list[i].type == val) \
95 return list[i].name; \
103 static struct drm_prop_enum_list drm_dpms_enum_list[] =
104 { { DRM_MODE_DPMS_ON, "On" },
105 { DRM_MODE_DPMS_STANDBY, "Standby" },
106 { DRM_MODE_DPMS_SUSPEND, "Suspend" },
107 { DRM_MODE_DPMS_OFF, "Off" }
110 DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)
113 * Optional properties
115 static struct drm_prop_enum_list drm_scaling_mode_enum_list[] =
117 { DRM_MODE_SCALE_NONE, "None" },
118 { DRM_MODE_SCALE_FULLSCREEN, "Full" },
119 { DRM_MODE_SCALE_CENTER, "Center" },
120 { DRM_MODE_SCALE_ASPECT, "Full aspect" },
123 static struct drm_prop_enum_list drm_dithering_mode_enum_list[] =
125 { DRM_MODE_DITHERING_OFF, "Off" },
126 { DRM_MODE_DITHERING_ON, "On" },
127 { DRM_MODE_DITHERING_AUTO, "Automatic" },
131 * Non-global properties, but "required" for certain connectors.
133 static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] =
135 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
136 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
137 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
140 DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list)
142 static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] =
144 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
145 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
146 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
149 DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
150 drm_dvi_i_subconnector_enum_list)
152 static struct drm_prop_enum_list drm_tv_select_enum_list[] =
154 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
155 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
156 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
157 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
158 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
161 DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)
163 static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
165 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
166 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
167 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
168 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
169 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
172 DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
173 drm_tv_subconnector_enum_list)
175 static struct drm_prop_enum_list drm_dirty_info_enum_list[] = {
176 { DRM_MODE_DIRTY_OFF, "Off" },
177 { DRM_MODE_DIRTY_ON, "On" },
178 { DRM_MODE_DIRTY_ANNOTATE, "Annotate" },
181 struct drm_conn_prop_enum_list {
188 * Connector and encoder types.
190 static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
191 { { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 },
192 { DRM_MODE_CONNECTOR_VGA, "VGA", 0 },
193 { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 },
194 { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 },
195 { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 },
196 { DRM_MODE_CONNECTOR_Composite, "Composite", 0 },
197 { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 },
198 { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 },
199 { DRM_MODE_CONNECTOR_Component, "Component", 0 },
200 { DRM_MODE_CONNECTOR_9PinDIN, "DIN", 0 },
201 { DRM_MODE_CONNECTOR_DisplayPort, "DP", 0 },
202 { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A", 0 },
203 { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B", 0 },
204 { DRM_MODE_CONNECTOR_TV, "TV", 0 },
205 { DRM_MODE_CONNECTOR_eDP, "eDP", 0 },
206 { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual", 0},
209 static struct drm_prop_enum_list drm_encoder_enum_list[] =
210 { { DRM_MODE_ENCODER_NONE, "None" },
211 { DRM_MODE_ENCODER_DAC, "DAC" },
212 { DRM_MODE_ENCODER_TMDS, "TMDS" },
213 { DRM_MODE_ENCODER_LVDS, "LVDS" },
214 { DRM_MODE_ENCODER_TVDAC, "TV" },
215 { DRM_MODE_ENCODER_VIRTUAL, "Virtual" },
218 char *drm_get_encoder_name(struct drm_encoder *encoder)
222 snprintf(buf, 32, "%s-%d",
223 drm_encoder_enum_list[encoder->encoder_type].name,
227 EXPORT_SYMBOL(drm_get_encoder_name);
229 char *drm_get_connector_name(struct drm_connector *connector)
233 snprintf(buf, 32, "%s-%d",
234 drm_connector_enum_list[connector->connector_type].name,
235 connector->connector_type_id);
238 EXPORT_SYMBOL(drm_get_connector_name);
240 char *drm_get_connector_status_name(enum drm_connector_status status)
242 if (status == connector_status_connected)
244 else if (status == connector_status_disconnected)
245 return "disconnected";
251 * drm_mode_object_get - allocate a new modeset identifier
253 * @obj: object pointer, used to generate unique ID
254 * @obj_type: object type
256 * Create a unique identifier based on @ptr in @dev's identifier space. Used
257 * for tracking modes, CRTCs and connectors.
260 * New unique (relative to other objects in @dev) integer identifier for the
263 static int drm_mode_object_get(struct drm_device *dev,
264 struct drm_mode_object *obj, uint32_t obj_type)
268 mutex_lock(&dev->mode_config.idr_mutex);
269 ret = idr_alloc(&dev->mode_config.crtc_idr, obj, 1, 0, GFP_KERNEL);
272 * Set up the object linking under the protection of the idr
273 * lock so that other users can't see inconsistent state.
276 obj->type = obj_type;
278 mutex_unlock(&dev->mode_config.idr_mutex);
280 return ret < 0 ? ret : 0;
284 * drm_mode_object_put - free a modeset identifer
286 * @object: object to free
288 * Free @id from @dev's unique identifier pool.
290 static void drm_mode_object_put(struct drm_device *dev,
291 struct drm_mode_object *object)
293 mutex_lock(&dev->mode_config.idr_mutex);
294 idr_remove(&dev->mode_config.crtc_idr, object->id);
295 mutex_unlock(&dev->mode_config.idr_mutex);
299 * drm_mode_object_find - look up a drm object with static lifetime
301 * @id: id of the mode object
302 * @type: type of the mode object
304 * Note that framebuffers cannot be looked up with this functions - since those
305 * are reference counted, they need special treatment.
307 struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
308 uint32_t id, uint32_t type)
310 struct drm_mode_object *obj = NULL;
312 /* Framebuffers are reference counted and need their own lookup
314 WARN_ON(type == DRM_MODE_OBJECT_FB);
316 mutex_lock(&dev->mode_config.idr_mutex);
317 obj = idr_find(&dev->mode_config.crtc_idr, id);
318 if (!obj || (obj->type != type) || (obj->id != id))
320 mutex_unlock(&dev->mode_config.idr_mutex);
324 EXPORT_SYMBOL(drm_mode_object_find);
327 * drm_framebuffer_init - initialize a framebuffer
329 * @fb: framebuffer to be initialized
330 * @funcs: ... with these functions
332 * Allocates an ID for the framebuffer's parent mode object, sets its mode
333 * functions & device file and adds it to the master fd list.
336 * This functions publishes the fb and makes it available for concurrent access
337 * by other users. Which means by this point the fb _must_ be fully set up -
338 * since all the fb attributes are invariant over its lifetime, no further
339 * locking but only correct reference counting is required.
342 * Zero on success, error code on failure.
344 int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
345 const struct drm_framebuffer_funcs *funcs)
349 mutex_lock(&dev->mode_config.fb_lock);
350 kref_init(&fb->refcount);
351 INIT_LIST_HEAD(&fb->filp_head);
355 ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
359 /* Grab the idr reference. */
360 drm_framebuffer_reference(fb);
362 dev->mode_config.num_fb++;
363 list_add(&fb->head, &dev->mode_config.fb_list);
365 mutex_unlock(&dev->mode_config.fb_lock);
369 EXPORT_SYMBOL(drm_framebuffer_init);
371 static void drm_framebuffer_free(struct kref *kref)
373 struct drm_framebuffer *fb =
374 container_of(kref, struct drm_framebuffer, refcount);
375 fb->funcs->destroy(fb);
378 static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev,
381 struct drm_mode_object *obj = NULL;
382 struct drm_framebuffer *fb;
384 mutex_lock(&dev->mode_config.idr_mutex);
385 obj = idr_find(&dev->mode_config.crtc_idr, id);
386 if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id))
390 mutex_unlock(&dev->mode_config.idr_mutex);
396 * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference
398 * @id: id of the fb object
400 * If successful, this grabs an additional reference to the framebuffer -
401 * callers need to make sure to eventually unreference the returned framebuffer
404 struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev,
407 struct drm_framebuffer *fb;
409 mutex_lock(&dev->mode_config.fb_lock);
410 fb = __drm_framebuffer_lookup(dev, id);
412 drm_framebuffer_reference(fb);
413 mutex_unlock(&dev->mode_config.fb_lock);
417 EXPORT_SYMBOL(drm_framebuffer_lookup);
420 * drm_framebuffer_unreference - unref a framebuffer
421 * @fb: framebuffer to unref
423 * This functions decrements the fb's refcount and frees it if it drops to zero.
425 void drm_framebuffer_unreference(struct drm_framebuffer *fb)
427 DRM_DEBUG("FB ID: %d\n", fb->base.id);
428 kref_put(&fb->refcount, drm_framebuffer_free);
430 EXPORT_SYMBOL(drm_framebuffer_unreference);
433 * drm_framebuffer_reference - incr the fb refcnt
436 void drm_framebuffer_reference(struct drm_framebuffer *fb)
438 DRM_DEBUG("FB ID: %d\n", fb->base.id);
439 kref_get(&fb->refcount);
441 EXPORT_SYMBOL(drm_framebuffer_reference);
443 static void drm_framebuffer_free_bug(struct kref *kref)
448 static void __drm_framebuffer_unreference(struct drm_framebuffer *fb)
450 DRM_DEBUG("FB ID: %d\n", fb->base.id);
451 kref_put(&fb->refcount, drm_framebuffer_free_bug);
454 /* dev->mode_config.fb_lock must be held! */
455 static void __drm_framebuffer_unregister(struct drm_device *dev,
456 struct drm_framebuffer *fb)
458 mutex_lock(&dev->mode_config.idr_mutex);
459 idr_remove(&dev->mode_config.crtc_idr, fb->base.id);
460 mutex_unlock(&dev->mode_config.idr_mutex);
464 __drm_framebuffer_unreference(fb);
468 * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr
469 * @fb: fb to unregister
471 * Drivers need to call this when cleaning up driver-private framebuffers, e.g.
472 * those used for fbdev. Note that the caller must hold a reference of it's own,
473 * i.e. the object may not be destroyed through this call (since it'll lead to a
474 * locking inversion).
476 void drm_framebuffer_unregister_private(struct drm_framebuffer *fb)
478 struct drm_device *dev = fb->dev;
480 mutex_lock(&dev->mode_config.fb_lock);
481 /* Mark fb as reaped and drop idr ref. */
482 __drm_framebuffer_unregister(dev, fb);
483 mutex_unlock(&dev->mode_config.fb_lock);
485 EXPORT_SYMBOL(drm_framebuffer_unregister_private);
488 * drm_framebuffer_cleanup - remove a framebuffer object
489 * @fb: framebuffer to remove
491 * Cleanup references to a user-created framebuffer. This function is intended
492 * to be used from the drivers ->destroy callback.
494 * Note that this function does not remove the fb from active usuage - if it is
495 * still used anywhere, hilarity can ensue since userspace could call getfb on
496 * the id and get back -EINVAL. Obviously no concern at driver unload time.
498 * Also, the framebuffer will not be removed from the lookup idr - for
499 * user-created framebuffers this will happen in in the rmfb ioctl. For
500 * driver-private objects (e.g. for fbdev) drivers need to explicitly call
501 * drm_framebuffer_unregister_private.
503 void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
505 struct drm_device *dev = fb->dev;
507 mutex_lock(&dev->mode_config.fb_lock);
509 dev->mode_config.num_fb--;
510 mutex_unlock(&dev->mode_config.fb_lock);
512 EXPORT_SYMBOL(drm_framebuffer_cleanup);
515 * drm_framebuffer_remove - remove and unreference a framebuffer object
516 * @fb: framebuffer to remove
518 * Scans all the CRTCs and planes in @dev's mode_config. If they're
519 * using @fb, removes it, setting it to NULL. Then drops the reference to the
520 * passed-in framebuffer. Might take the modeset locks.
522 * Note that this function optimizes the cleanup away if the caller holds the
523 * last reference to the framebuffer. It is also guaranteed to not take the
524 * modeset locks in this case.
526 void drm_framebuffer_remove(struct drm_framebuffer *fb)
528 struct drm_device *dev = fb->dev;
529 struct drm_crtc *crtc;
530 struct drm_plane *plane;
531 struct drm_mode_set set;
534 WARN_ON(!list_empty(&fb->filp_head));
537 * drm ABI mandates that we remove any deleted framebuffers from active
538 * useage. But since most sane clients only remove framebuffers they no
539 * longer need, try to optimize this away.
541 * Since we're holding a reference ourselves, observing a refcount of 1
542 * means that we're the last holder and can skip it. Also, the refcount
543 * can never increase from 1 again, so we don't need any barriers or
546 * Note that userspace could try to race with use and instate a new
547 * usage _after_ we've cleared all current ones. End result will be an
548 * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot
551 if (atomic_read(&fb->refcount.refcount) > 1) {
552 drm_modeset_lock_all(dev);
553 /* remove from any CRTC */
554 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
555 if (crtc->fb == fb) {
556 /* should turn off the crtc */
557 memset(&set, 0, sizeof(struct drm_mode_set));
560 ret = drm_mode_set_config_internal(&set);
562 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
566 list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
567 if (plane->fb == fb) {
568 /* should turn off the crtc */
569 ret = plane->funcs->disable_plane(plane);
571 DRM_ERROR("failed to disable plane with busy fb\n");
572 /* disconnect the plane from the fb and crtc: */
573 __drm_framebuffer_unreference(plane->fb);
578 drm_modeset_unlock_all(dev);
581 drm_framebuffer_unreference(fb);
583 EXPORT_SYMBOL(drm_framebuffer_remove);
586 * drm_crtc_init - Initialise a new CRTC object
588 * @crtc: CRTC object to init
589 * @funcs: callbacks for the new CRTC
591 * Inits a new object created as base part of an driver crtc object.
594 * Zero on success, error code on failure.
596 int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
597 const struct drm_crtc_funcs *funcs)
603 crtc->invert_dimensions = false;
605 drm_modeset_lock_all(dev);
606 mutex_init(&crtc->mutex);
607 mutex_lock_nest_lock(&crtc->mutex, &dev->mode_config.mutex);
609 ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
613 crtc->base.properties = &crtc->properties;
615 list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
616 dev->mode_config.num_crtc++;
619 drm_modeset_unlock_all(dev);
623 EXPORT_SYMBOL(drm_crtc_init);
626 * drm_crtc_cleanup - Cleans up the core crtc usage.
627 * @crtc: CRTC to cleanup
629 * Cleanup @crtc. Removes from drm modesetting space
630 * does NOT free object, caller does that.
632 void drm_crtc_cleanup(struct drm_crtc *crtc)
634 struct drm_device *dev = crtc->dev;
636 kfree(crtc->gamma_store);
637 crtc->gamma_store = NULL;
639 drm_mode_object_put(dev, &crtc->base);
640 list_del(&crtc->head);
641 dev->mode_config.num_crtc--;
643 EXPORT_SYMBOL(drm_crtc_cleanup);
646 * drm_mode_probed_add - add a mode to a connector's probed mode list
647 * @connector: connector the new mode
650 * Add @mode to @connector's mode list for later use.
652 void drm_mode_probed_add(struct drm_connector *connector,
653 struct drm_display_mode *mode)
655 list_add(&mode->head, &connector->probed_modes);
657 EXPORT_SYMBOL(drm_mode_probed_add);
660 * drm_mode_remove - remove and free a mode
661 * @connector: connector list to modify
662 * @mode: mode to remove
664 * Remove @mode from @connector's mode list, then free it.
666 void drm_mode_remove(struct drm_connector *connector,
667 struct drm_display_mode *mode)
669 list_del(&mode->head);
670 drm_mode_destroy(connector->dev, mode);
672 EXPORT_SYMBOL(drm_mode_remove);
675 * drm_connector_init - Init a preallocated connector
677 * @connector: the connector to init
678 * @funcs: callbacks for this connector
679 * @connector_type: user visible type of the connector
681 * Initialises a preallocated connector. Connectors should be
682 * subclassed as part of driver connector objects.
685 * Zero on success, error code on failure.
687 int drm_connector_init(struct drm_device *dev,
688 struct drm_connector *connector,
689 const struct drm_connector_funcs *funcs,
694 drm_modeset_lock_all(dev);
696 ret = drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
700 connector->base.properties = &connector->properties;
701 connector->dev = dev;
702 connector->funcs = funcs;
703 connector->connector_type = connector_type;
704 connector->connector_type_id =
705 ++drm_connector_enum_list[connector_type].count; /* TODO */
706 INIT_LIST_HEAD(&connector->probed_modes);
707 INIT_LIST_HEAD(&connector->modes);
708 connector->edid_blob_ptr = NULL;
709 connector->status = connector_status_unknown;
711 list_add_tail(&connector->head, &dev->mode_config.connector_list);
712 dev->mode_config.num_connector++;
714 if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL)
715 drm_object_attach_property(&connector->base,
716 dev->mode_config.edid_property,
719 drm_object_attach_property(&connector->base,
720 dev->mode_config.dpms_property, 0);
723 drm_modeset_unlock_all(dev);
727 EXPORT_SYMBOL(drm_connector_init);
730 * drm_connector_cleanup - cleans up an initialised connector
731 * @connector: connector to cleanup
733 * Cleans up the connector but doesn't free the object.
735 void drm_connector_cleanup(struct drm_connector *connector)
737 struct drm_device *dev = connector->dev;
738 struct drm_display_mode *mode, *t;
740 list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
741 drm_mode_remove(connector, mode);
743 list_for_each_entry_safe(mode, t, &connector->modes, head)
744 drm_mode_remove(connector, mode);
746 drm_mode_object_put(dev, &connector->base);
747 list_del(&connector->head);
748 dev->mode_config.num_connector--;
750 EXPORT_SYMBOL(drm_connector_cleanup);
752 void drm_connector_unplug_all(struct drm_device *dev)
754 struct drm_connector *connector;
756 /* taking the mode config mutex ends up in a clash with sysfs */
757 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
758 drm_sysfs_connector_remove(connector);
761 EXPORT_SYMBOL(drm_connector_unplug_all);
763 int drm_encoder_init(struct drm_device *dev,
764 struct drm_encoder *encoder,
765 const struct drm_encoder_funcs *funcs,
770 drm_modeset_lock_all(dev);
772 ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
777 encoder->encoder_type = encoder_type;
778 encoder->funcs = funcs;
780 list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
781 dev->mode_config.num_encoder++;
784 drm_modeset_unlock_all(dev);
788 EXPORT_SYMBOL(drm_encoder_init);
790 void drm_encoder_cleanup(struct drm_encoder *encoder)
792 struct drm_device *dev = encoder->dev;
793 drm_modeset_lock_all(dev);
794 drm_mode_object_put(dev, &encoder->base);
795 list_del(&encoder->head);
796 dev->mode_config.num_encoder--;
797 drm_modeset_unlock_all(dev);
799 EXPORT_SYMBOL(drm_encoder_cleanup);
801 int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
802 unsigned long possible_crtcs,
803 const struct drm_plane_funcs *funcs,
804 const uint32_t *formats, uint32_t format_count,
809 drm_modeset_lock_all(dev);
811 ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE);
815 plane->base.properties = &plane->properties;
817 plane->funcs = funcs;
818 plane->format_types = kmalloc(sizeof(uint32_t) * format_count,
820 if (!plane->format_types) {
821 DRM_DEBUG_KMS("out of memory when allocating plane\n");
822 drm_mode_object_put(dev, &plane->base);
827 memcpy(plane->format_types, formats, format_count * sizeof(uint32_t));
828 plane->format_count = format_count;
829 plane->possible_crtcs = possible_crtcs;
831 /* private planes are not exposed to userspace, but depending on
832 * display hardware, might be convenient to allow sharing programming
833 * for the scanout engine with the crtc implementation.
836 list_add_tail(&plane->head, &dev->mode_config.plane_list);
837 dev->mode_config.num_plane++;
839 INIT_LIST_HEAD(&plane->head);
843 drm_modeset_unlock_all(dev);
847 EXPORT_SYMBOL(drm_plane_init);
849 void drm_plane_cleanup(struct drm_plane *plane)
851 struct drm_device *dev = plane->dev;
853 drm_modeset_lock_all(dev);
854 kfree(plane->format_types);
855 drm_mode_object_put(dev, &plane->base);
856 /* if not added to a list, it must be a private plane */
857 if (!list_empty(&plane->head)) {
858 list_del(&plane->head);
859 dev->mode_config.num_plane--;
861 drm_modeset_unlock_all(dev);
863 EXPORT_SYMBOL(drm_plane_cleanup);
866 * drm_mode_create - create a new display mode
869 * Create a new drm_display_mode, give it an ID, and return it.
872 * Pointer to new mode on success, NULL on error.
874 struct drm_display_mode *drm_mode_create(struct drm_device *dev)
876 struct drm_display_mode *nmode;
878 nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
882 if (drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE)) {
889 EXPORT_SYMBOL(drm_mode_create);
892 * drm_mode_destroy - remove a mode
894 * @mode: mode to remove
896 * Free @mode's unique identifier, then free it.
898 void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
903 drm_mode_object_put(dev, &mode->base);
907 EXPORT_SYMBOL(drm_mode_destroy);
909 static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
911 struct drm_property *edid;
912 struct drm_property *dpms;
915 * Standard properties (apply to all connectors)
917 edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
918 DRM_MODE_PROP_IMMUTABLE,
920 dev->mode_config.edid_property = edid;
922 dpms = drm_property_create_enum(dev, 0,
923 "DPMS", drm_dpms_enum_list,
924 ARRAY_SIZE(drm_dpms_enum_list));
925 dev->mode_config.dpms_property = dpms;
931 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
934 * Called by a driver the first time a DVI-I connector is made.
936 int drm_mode_create_dvi_i_properties(struct drm_device *dev)
938 struct drm_property *dvi_i_selector;
939 struct drm_property *dvi_i_subconnector;
941 if (dev->mode_config.dvi_i_select_subconnector_property)
945 drm_property_create_enum(dev, 0,
946 "select subconnector",
947 drm_dvi_i_select_enum_list,
948 ARRAY_SIZE(drm_dvi_i_select_enum_list));
949 dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
951 dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
953 drm_dvi_i_subconnector_enum_list,
954 ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
955 dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
959 EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
962 * drm_create_tv_properties - create TV specific connector properties
964 * @num_modes: number of different TV formats (modes) supported
965 * @modes: array of pointers to strings containing name of each format
967 * Called by a driver's TV initialization routine, this function creates
968 * the TV specific connector properties for a given device. Caller is
969 * responsible for allocating a list of format names and passing them to
972 int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
975 struct drm_property *tv_selector;
976 struct drm_property *tv_subconnector;
979 if (dev->mode_config.tv_select_subconnector_property)
983 * Basic connector properties
985 tv_selector = drm_property_create_enum(dev, 0,
986 "select subconnector",
987 drm_tv_select_enum_list,
988 ARRAY_SIZE(drm_tv_select_enum_list));
989 dev->mode_config.tv_select_subconnector_property = tv_selector;
992 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
994 drm_tv_subconnector_enum_list,
995 ARRAY_SIZE(drm_tv_subconnector_enum_list));
996 dev->mode_config.tv_subconnector_property = tv_subconnector;
999 * Other, TV specific properties: margins & TV modes.
1001 dev->mode_config.tv_left_margin_property =
1002 drm_property_create_range(dev, 0, "left margin", 0, 100);
1004 dev->mode_config.tv_right_margin_property =
1005 drm_property_create_range(dev, 0, "right margin", 0, 100);
1007 dev->mode_config.tv_top_margin_property =
1008 drm_property_create_range(dev, 0, "top margin", 0, 100);
1010 dev->mode_config.tv_bottom_margin_property =
1011 drm_property_create_range(dev, 0, "bottom margin", 0, 100);
1013 dev->mode_config.tv_mode_property =
1014 drm_property_create(dev, DRM_MODE_PROP_ENUM,
1016 for (i = 0; i < num_modes; i++)
1017 drm_property_add_enum(dev->mode_config.tv_mode_property, i,
1020 dev->mode_config.tv_brightness_property =
1021 drm_property_create_range(dev, 0, "brightness", 0, 100);
1023 dev->mode_config.tv_contrast_property =
1024 drm_property_create_range(dev, 0, "contrast", 0, 100);
1026 dev->mode_config.tv_flicker_reduction_property =
1027 drm_property_create_range(dev, 0, "flicker reduction", 0, 100);
1029 dev->mode_config.tv_overscan_property =
1030 drm_property_create_range(dev, 0, "overscan", 0, 100);
1032 dev->mode_config.tv_saturation_property =
1033 drm_property_create_range(dev, 0, "saturation", 0, 100);
1035 dev->mode_config.tv_hue_property =
1036 drm_property_create_range(dev, 0, "hue", 0, 100);
1040 EXPORT_SYMBOL(drm_mode_create_tv_properties);
1043 * drm_mode_create_scaling_mode_property - create scaling mode property
1046 * Called by a driver the first time it's needed, must be attached to desired
1049 int drm_mode_create_scaling_mode_property(struct drm_device *dev)
1051 struct drm_property *scaling_mode;
1053 if (dev->mode_config.scaling_mode_property)
1057 drm_property_create_enum(dev, 0, "scaling mode",
1058 drm_scaling_mode_enum_list,
1059 ARRAY_SIZE(drm_scaling_mode_enum_list));
1061 dev->mode_config.scaling_mode_property = scaling_mode;
1065 EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
1068 * drm_mode_create_dithering_property - create dithering property
1071 * Called by a driver the first time it's needed, must be attached to desired
1074 int drm_mode_create_dithering_property(struct drm_device *dev)
1076 struct drm_property *dithering_mode;
1078 if (dev->mode_config.dithering_mode_property)
1082 drm_property_create_enum(dev, 0, "dithering",
1083 drm_dithering_mode_enum_list,
1084 ARRAY_SIZE(drm_dithering_mode_enum_list));
1085 dev->mode_config.dithering_mode_property = dithering_mode;
1089 EXPORT_SYMBOL(drm_mode_create_dithering_property);
1092 * drm_mode_create_dirty_property - create dirty property
1095 * Called by a driver the first time it's needed, must be attached to desired
1098 int drm_mode_create_dirty_info_property(struct drm_device *dev)
1100 struct drm_property *dirty_info;
1102 if (dev->mode_config.dirty_info_property)
1106 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
1108 drm_dirty_info_enum_list,
1109 ARRAY_SIZE(drm_dirty_info_enum_list));
1110 dev->mode_config.dirty_info_property = dirty_info;
1114 EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
1116 static int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
1118 uint32_t total_objects = 0;
1120 total_objects += dev->mode_config.num_crtc;
1121 total_objects += dev->mode_config.num_connector;
1122 total_objects += dev->mode_config.num_encoder;
1124 group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
1125 if (!group->id_list)
1128 group->num_crtcs = 0;
1129 group->num_connectors = 0;
1130 group->num_encoders = 0;
1134 int drm_mode_group_init_legacy_group(struct drm_device *dev,
1135 struct drm_mode_group *group)
1137 struct drm_crtc *crtc;
1138 struct drm_encoder *encoder;
1139 struct drm_connector *connector;
1142 if ((ret = drm_mode_group_init(dev, group)))
1145 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
1146 group->id_list[group->num_crtcs++] = crtc->base.id;
1148 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
1149 group->id_list[group->num_crtcs + group->num_encoders++] =
1152 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
1153 group->id_list[group->num_crtcs + group->num_encoders +
1154 group->num_connectors++] = connector->base.id;
1158 EXPORT_SYMBOL(drm_mode_group_init_legacy_group);
1161 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
1162 * @out: drm_mode_modeinfo struct to return to the user
1163 * @in: drm_display_mode to use
1165 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
1168 static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
1169 const struct drm_display_mode *in)
1171 WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX ||
1172 in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX ||
1173 in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX ||
1174 in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX ||
1175 in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX,
1176 "timing values too large for mode info\n");
1178 out->clock = in->clock;
1179 out->hdisplay = in->hdisplay;
1180 out->hsync_start = in->hsync_start;
1181 out->hsync_end = in->hsync_end;
1182 out->htotal = in->htotal;
1183 out->hskew = in->hskew;
1184 out->vdisplay = in->vdisplay;
1185 out->vsync_start = in->vsync_start;
1186 out->vsync_end = in->vsync_end;
1187 out->vtotal = in->vtotal;
1188 out->vscan = in->vscan;
1189 out->vrefresh = in->vrefresh;
1190 out->flags = in->flags;
1191 out->type = in->type;
1192 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1193 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1197 * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
1198 * @out: drm_display_mode to return to the user
1199 * @in: drm_mode_modeinfo to use
1201 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
1205 * Zero on success, errno on failure.
1207 static int drm_crtc_convert_umode(struct drm_display_mode *out,
1208 const struct drm_mode_modeinfo *in)
1210 if (in->clock > INT_MAX || in->vrefresh > INT_MAX)
1213 out->clock = in->clock;
1214 out->hdisplay = in->hdisplay;
1215 out->hsync_start = in->hsync_start;
1216 out->hsync_end = in->hsync_end;
1217 out->htotal = in->htotal;
1218 out->hskew = in->hskew;
1219 out->vdisplay = in->vdisplay;
1220 out->vsync_start = in->vsync_start;
1221 out->vsync_end = in->vsync_end;
1222 out->vtotal = in->vtotal;
1223 out->vscan = in->vscan;
1224 out->vrefresh = in->vrefresh;
1225 out->flags = in->flags;
1226 out->type = in->type;
1227 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1228 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1234 * drm_mode_getresources - get graphics configuration
1235 * @dev: drm device for the ioctl
1236 * @data: data pointer for the ioctl
1237 * @file_priv: drm file for the ioctl call
1239 * Construct a set of configuration description structures and return
1240 * them to the user, including CRTC, connector and framebuffer configuration.
1242 * Called by the user via ioctl.
1245 * Zero on success, errno on failure.
1247 int drm_mode_getresources(struct drm_device *dev, void *data,
1248 struct drm_file *file_priv)
1250 struct drm_mode_card_res *card_res = data;
1251 struct list_head *lh;
1252 struct drm_framebuffer *fb;
1253 struct drm_connector *connector;
1254 struct drm_crtc *crtc;
1255 struct drm_encoder *encoder;
1257 int connector_count = 0;
1260 int encoder_count = 0;
1262 uint32_t __user *fb_id;
1263 uint32_t __user *crtc_id;
1264 uint32_t __user *connector_id;
1265 uint32_t __user *encoder_id;
1266 struct drm_mode_group *mode_group;
1268 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1272 mutex_lock(&file_priv->fbs_lock);
1274 * For the non-control nodes we need to limit the list of resources
1275 * by IDs in the group list for this node
1277 list_for_each(lh, &file_priv->fbs)
1280 /* handle this in 4 parts */
1282 if (card_res->count_fbs >= fb_count) {
1284 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
1285 list_for_each_entry(fb, &file_priv->fbs, filp_head) {
1286 if (put_user(fb->base.id, fb_id + copied)) {
1287 mutex_unlock(&file_priv->fbs_lock);
1293 card_res->count_fbs = fb_count;
1294 mutex_unlock(&file_priv->fbs_lock);
1296 drm_modeset_lock_all(dev);
1297 mode_group = &file_priv->master->minor->mode_group;
1298 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1300 list_for_each(lh, &dev->mode_config.crtc_list)
1303 list_for_each(lh, &dev->mode_config.connector_list)
1306 list_for_each(lh, &dev->mode_config.encoder_list)
1310 crtc_count = mode_group->num_crtcs;
1311 connector_count = mode_group->num_connectors;
1312 encoder_count = mode_group->num_encoders;
1315 card_res->max_height = dev->mode_config.max_height;
1316 card_res->min_height = dev->mode_config.min_height;
1317 card_res->max_width = dev->mode_config.max_width;
1318 card_res->min_width = dev->mode_config.min_width;
1321 if (card_res->count_crtcs >= crtc_count) {
1323 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
1324 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1325 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1327 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
1328 if (put_user(crtc->base.id, crtc_id + copied)) {
1335 for (i = 0; i < mode_group->num_crtcs; i++) {
1336 if (put_user(mode_group->id_list[i],
1337 crtc_id + copied)) {
1345 card_res->count_crtcs = crtc_count;
1348 if (card_res->count_encoders >= encoder_count) {
1350 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
1351 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1352 list_for_each_entry(encoder,
1353 &dev->mode_config.encoder_list,
1355 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id,
1356 drm_get_encoder_name(encoder));
1357 if (put_user(encoder->base.id, encoder_id +
1365 for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
1366 if (put_user(mode_group->id_list[i],
1367 encoder_id + copied)) {
1376 card_res->count_encoders = encoder_count;
1379 if (card_res->count_connectors >= connector_count) {
1381 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
1382 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1383 list_for_each_entry(connector,
1384 &dev->mode_config.connector_list,
1386 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1388 drm_get_connector_name(connector));
1389 if (put_user(connector->base.id,
1390 connector_id + copied)) {
1397 int start = mode_group->num_crtcs +
1398 mode_group->num_encoders;
1399 for (i = start; i < start + mode_group->num_connectors; i++) {
1400 if (put_user(mode_group->id_list[i],
1401 connector_id + copied)) {
1409 card_res->count_connectors = connector_count;
1411 DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs,
1412 card_res->count_connectors, card_res->count_encoders);
1415 drm_modeset_unlock_all(dev);
1420 * drm_mode_getcrtc - get CRTC configuration
1421 * @dev: drm device for the ioctl
1422 * @data: data pointer for the ioctl
1423 * @file_priv: drm file for the ioctl call
1425 * Construct a CRTC configuration structure to return to the user.
1427 * Called by the user via ioctl.
1430 * Zero on success, errno on failure.
1432 int drm_mode_getcrtc(struct drm_device *dev,
1433 void *data, struct drm_file *file_priv)
1435 struct drm_mode_crtc *crtc_resp = data;
1436 struct drm_crtc *crtc;
1437 struct drm_mode_object *obj;
1440 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1443 drm_modeset_lock_all(dev);
1445 obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
1446 DRM_MODE_OBJECT_CRTC);
1451 crtc = obj_to_crtc(obj);
1453 crtc_resp->x = crtc->x;
1454 crtc_resp->y = crtc->y;
1455 crtc_resp->gamma_size = crtc->gamma_size;
1457 crtc_resp->fb_id = crtc->fb->base.id;
1459 crtc_resp->fb_id = 0;
1461 if (crtc->enabled) {
1463 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1464 crtc_resp->mode_valid = 1;
1467 crtc_resp->mode_valid = 0;
1471 drm_modeset_unlock_all(dev);
1476 * drm_mode_getconnector - get connector configuration
1477 * @dev: drm device for the ioctl
1478 * @data: data pointer for the ioctl
1479 * @file_priv: drm file for the ioctl call
1481 * Construct a connector configuration structure to return to the user.
1483 * Called by the user via ioctl.
1486 * Zero on success, errno on failure.
1488 int drm_mode_getconnector(struct drm_device *dev, void *data,
1489 struct drm_file *file_priv)
1491 struct drm_mode_get_connector *out_resp = data;
1492 struct drm_mode_object *obj;
1493 struct drm_connector *connector;
1494 struct drm_display_mode *mode;
1496 int props_count = 0;
1497 int encoders_count = 0;
1501 struct drm_mode_modeinfo u_mode;
1502 struct drm_mode_modeinfo __user *mode_ptr;
1503 uint32_t __user *prop_ptr;
1504 uint64_t __user *prop_values;
1505 uint32_t __user *encoder_ptr;
1507 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1510 memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1512 DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);
1514 mutex_lock(&dev->mode_config.mutex);
1516 obj = drm_mode_object_find(dev, out_resp->connector_id,
1517 DRM_MODE_OBJECT_CONNECTOR);
1522 connector = obj_to_connector(obj);
1524 props_count = connector->properties.count;
1526 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1527 if (connector->encoder_ids[i] != 0) {
1532 if (out_resp->count_modes == 0) {
1533 connector->funcs->fill_modes(connector,
1534 dev->mode_config.max_width,
1535 dev->mode_config.max_height);
1538 /* delayed so we get modes regardless of pre-fill_modes state */
1539 list_for_each_entry(mode, &connector->modes, head)
1542 out_resp->connector_id = connector->base.id;
1543 out_resp->connector_type = connector->connector_type;
1544 out_resp->connector_type_id = connector->connector_type_id;
1545 out_resp->mm_width = connector->display_info.width_mm;
1546 out_resp->mm_height = connector->display_info.height_mm;
1547 out_resp->subpixel = connector->display_info.subpixel_order;
1548 out_resp->connection = connector->status;
1549 if (connector->encoder)
1550 out_resp->encoder_id = connector->encoder->base.id;
1552 out_resp->encoder_id = 0;
1555 * This ioctl is called twice, once to determine how much space is
1556 * needed, and the 2nd time to fill it.
1558 if ((out_resp->count_modes >= mode_count) && mode_count) {
1560 mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr;
1561 list_for_each_entry(mode, &connector->modes, head) {
1562 drm_crtc_convert_to_umode(&u_mode, mode);
1563 if (copy_to_user(mode_ptr + copied,
1564 &u_mode, sizeof(u_mode))) {
1571 out_resp->count_modes = mode_count;
1573 if ((out_resp->count_props >= props_count) && props_count) {
1575 prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr);
1576 prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr);
1577 for (i = 0; i < connector->properties.count; i++) {
1578 if (put_user(connector->properties.ids[i],
1579 prop_ptr + copied)) {
1584 if (put_user(connector->properties.values[i],
1585 prop_values + copied)) {
1592 out_resp->count_props = props_count;
1594 if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
1596 encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr);
1597 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1598 if (connector->encoder_ids[i] != 0) {
1599 if (put_user(connector->encoder_ids[i],
1600 encoder_ptr + copied)) {
1608 out_resp->count_encoders = encoders_count;
1611 mutex_unlock(&dev->mode_config.mutex);
1616 int drm_mode_getencoder(struct drm_device *dev, void *data,
1617 struct drm_file *file_priv)
1619 struct drm_mode_get_encoder *enc_resp = data;
1620 struct drm_mode_object *obj;
1621 struct drm_encoder *encoder;
1624 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1627 drm_modeset_lock_all(dev);
1628 obj = drm_mode_object_find(dev, enc_resp->encoder_id,
1629 DRM_MODE_OBJECT_ENCODER);
1634 encoder = obj_to_encoder(obj);
1637 enc_resp->crtc_id = encoder->crtc->base.id;
1639 enc_resp->crtc_id = 0;
1640 enc_resp->encoder_type = encoder->encoder_type;
1641 enc_resp->encoder_id = encoder->base.id;
1642 enc_resp->possible_crtcs = encoder->possible_crtcs;
1643 enc_resp->possible_clones = encoder->possible_clones;
1646 drm_modeset_unlock_all(dev);
1651 * drm_mode_getplane_res - get plane info
1654 * @file_priv: DRM file info
1656 * Return an plane count and set of IDs.
1658 int drm_mode_getplane_res(struct drm_device *dev, void *data,
1659 struct drm_file *file_priv)
1661 struct drm_mode_get_plane_res *plane_resp = data;
1662 struct drm_mode_config *config;
1663 struct drm_plane *plane;
1664 uint32_t __user *plane_ptr;
1665 int copied = 0, ret = 0;
1667 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1670 drm_modeset_lock_all(dev);
1671 config = &dev->mode_config;
1674 * This ioctl is called twice, once to determine how much space is
1675 * needed, and the 2nd time to fill it.
1677 if (config->num_plane &&
1678 (plane_resp->count_planes >= config->num_plane)) {
1679 plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr;
1681 list_for_each_entry(plane, &config->plane_list, head) {
1682 if (put_user(plane->base.id, plane_ptr + copied)) {
1689 plane_resp->count_planes = config->num_plane;
1692 drm_modeset_unlock_all(dev);
1697 * drm_mode_getplane - get plane info
1700 * @file_priv: DRM file info
1702 * Return plane info, including formats supported, gamma size, any
1705 int drm_mode_getplane(struct drm_device *dev, void *data,
1706 struct drm_file *file_priv)
1708 struct drm_mode_get_plane *plane_resp = data;
1709 struct drm_mode_object *obj;
1710 struct drm_plane *plane;
1711 uint32_t __user *format_ptr;
1714 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1717 drm_modeset_lock_all(dev);
1718 obj = drm_mode_object_find(dev, plane_resp->plane_id,
1719 DRM_MODE_OBJECT_PLANE);
1724 plane = obj_to_plane(obj);
1727 plane_resp->crtc_id = plane->crtc->base.id;
1729 plane_resp->crtc_id = 0;
1732 plane_resp->fb_id = plane->fb->base.id;
1734 plane_resp->fb_id = 0;
1736 plane_resp->plane_id = plane->base.id;
1737 plane_resp->possible_crtcs = plane->possible_crtcs;
1738 plane_resp->gamma_size = plane->gamma_size;
1741 * This ioctl is called twice, once to determine how much space is
1742 * needed, and the 2nd time to fill it.
1744 if (plane->format_count &&
1745 (plane_resp->count_format_types >= plane->format_count)) {
1746 format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr;
1747 if (copy_to_user(format_ptr,
1748 plane->format_types,
1749 sizeof(uint32_t) * plane->format_count)) {
1754 plane_resp->count_format_types = plane->format_count;
1757 drm_modeset_unlock_all(dev);
1762 * drm_mode_setplane - set up or tear down an plane
1764 * @data: ioctl data*
1765 * @file_priv: DRM file info
1767 * Set plane info, including placement, fb, scaling, and other factors.
1768 * Or pass a NULL fb to disable.
1770 int drm_mode_setplane(struct drm_device *dev, void *data,
1771 struct drm_file *file_priv)
1773 struct drm_mode_set_plane *plane_req = data;
1774 struct drm_mode_object *obj;
1775 struct drm_plane *plane;
1776 struct drm_crtc *crtc;
1777 struct drm_framebuffer *fb = NULL, *old_fb = NULL;
1779 unsigned int fb_width, fb_height;
1782 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1786 * First, find the plane, crtc, and fb objects. If not available,
1787 * we don't bother to call the driver.
1789 obj = drm_mode_object_find(dev, plane_req->plane_id,
1790 DRM_MODE_OBJECT_PLANE);
1792 DRM_DEBUG_KMS("Unknown plane ID %d\n",
1793 plane_req->plane_id);
1796 plane = obj_to_plane(obj);
1798 /* No fb means shut it down */
1799 if (!plane_req->fb_id) {
1800 drm_modeset_lock_all(dev);
1802 plane->funcs->disable_plane(plane);
1805 drm_modeset_unlock_all(dev);
1809 obj = drm_mode_object_find(dev, plane_req->crtc_id,
1810 DRM_MODE_OBJECT_CRTC);
1812 DRM_DEBUG_KMS("Unknown crtc ID %d\n",
1813 plane_req->crtc_id);
1817 crtc = obj_to_crtc(obj);
1819 fb = drm_framebuffer_lookup(dev, plane_req->fb_id);
1821 DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
1827 /* Check whether this plane supports the fb pixel format. */
1828 for (i = 0; i < plane->format_count; i++)
1829 if (fb->pixel_format == plane->format_types[i])
1831 if (i == plane->format_count) {
1832 DRM_DEBUG_KMS("Invalid pixel format 0x%08x\n", fb->pixel_format);
1837 fb_width = fb->width << 16;
1838 fb_height = fb->height << 16;
1840 /* Make sure source coordinates are inside the fb. */
1841 if (plane_req->src_w > fb_width ||
1842 plane_req->src_x > fb_width - plane_req->src_w ||
1843 plane_req->src_h > fb_height ||
1844 plane_req->src_y > fb_height - plane_req->src_h) {
1845 DRM_DEBUG_KMS("Invalid source coordinates "
1846 "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
1847 plane_req->src_w >> 16,
1848 ((plane_req->src_w & 0xffff) * 15625) >> 10,
1849 plane_req->src_h >> 16,
1850 ((plane_req->src_h & 0xffff) * 15625) >> 10,
1851 plane_req->src_x >> 16,
1852 ((plane_req->src_x & 0xffff) * 15625) >> 10,
1853 plane_req->src_y >> 16,
1854 ((plane_req->src_y & 0xffff) * 15625) >> 10);
1859 /* Give drivers some help against integer overflows */
1860 if (plane_req->crtc_w > INT_MAX ||
1861 plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w ||
1862 plane_req->crtc_h > INT_MAX ||
1863 plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) {
1864 DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
1865 plane_req->crtc_w, plane_req->crtc_h,
1866 plane_req->crtc_x, plane_req->crtc_y);
1871 drm_modeset_lock_all(dev);
1872 ret = plane->funcs->update_plane(plane, crtc, fb,
1873 plane_req->crtc_x, plane_req->crtc_y,
1874 plane_req->crtc_w, plane_req->crtc_h,
1875 plane_req->src_x, plane_req->src_y,
1876 plane_req->src_w, plane_req->src_h);
1883 drm_modeset_unlock_all(dev);
1887 drm_framebuffer_unreference(fb);
1889 drm_framebuffer_unreference(old_fb);
1895 * drm_mode_set_config_internal - helper to call ->set_config
1896 * @set: modeset config to set
1898 * This is a little helper to wrap internal calls to the ->set_config driver
1899 * interface. The only thing it adds is correct refcounting dance.
1901 int drm_mode_set_config_internal(struct drm_mode_set *set)
1903 struct drm_crtc *crtc = set->crtc;
1904 struct drm_framebuffer *fb, *old_fb;
1910 ret = crtc->funcs->set_config(set);
1913 drm_framebuffer_unreference(old_fb);
1915 drm_framebuffer_reference(fb);
1920 EXPORT_SYMBOL(drm_mode_set_config_internal);
1923 * drm_mode_setcrtc - set CRTC configuration
1924 * @dev: drm device for the ioctl
1925 * @data: data pointer for the ioctl
1926 * @file_priv: drm file for the ioctl call
1928 * Build a new CRTC configuration based on user request.
1930 * Called by the user via ioctl.
1933 * Zero on success, errno on failure.
1935 int drm_mode_setcrtc(struct drm_device *dev, void *data,
1936 struct drm_file *file_priv)
1938 struct drm_mode_config *config = &dev->mode_config;
1939 struct drm_mode_crtc *crtc_req = data;
1940 struct drm_mode_object *obj;
1941 struct drm_crtc *crtc;
1942 struct drm_connector **connector_set = NULL, *connector;
1943 struct drm_framebuffer *fb = NULL;
1944 struct drm_display_mode *mode = NULL;
1945 struct drm_mode_set set;
1946 uint32_t __user *set_connectors_ptr;
1950 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1953 /* For some reason crtc x/y offsets are signed internally. */
1954 if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX)
1957 drm_modeset_lock_all(dev);
1958 obj = drm_mode_object_find(dev, crtc_req->crtc_id,
1959 DRM_MODE_OBJECT_CRTC);
1961 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
1965 crtc = obj_to_crtc(obj);
1966 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
1968 if (crtc_req->mode_valid) {
1969 int hdisplay, vdisplay;
1970 /* If we have a mode we need a framebuffer. */
1971 /* If we pass -1, set the mode with the currently bound fb */
1972 if (crtc_req->fb_id == -1) {
1974 DRM_DEBUG_KMS("CRTC doesn't have current FB\n");
1979 /* Make refcounting symmetric with the lookup path. */
1980 drm_framebuffer_reference(fb);
1982 fb = drm_framebuffer_lookup(dev, crtc_req->fb_id);
1984 DRM_DEBUG_KMS("Unknown FB ID%d\n",
1991 mode = drm_mode_create(dev);
1997 ret = drm_crtc_convert_umode(mode, &crtc_req->mode);
1999 DRM_DEBUG_KMS("Invalid mode\n");
2003 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
2005 hdisplay = mode->hdisplay;
2006 vdisplay = mode->vdisplay;
2008 if (crtc->invert_dimensions)
2009 swap(hdisplay, vdisplay);
2011 if (hdisplay > fb->width ||
2012 vdisplay > fb->height ||
2013 crtc_req->x > fb->width - hdisplay ||
2014 crtc_req->y > fb->height - vdisplay) {
2015 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
2016 fb->width, fb->height,
2017 hdisplay, vdisplay, crtc_req->x, crtc_req->y,
2018 crtc->invert_dimensions ? " (inverted)" : "");
2024 if (crtc_req->count_connectors == 0 && mode) {
2025 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
2030 if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
2031 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
2032 crtc_req->count_connectors);
2037 if (crtc_req->count_connectors > 0) {
2040 /* Avoid unbounded kernel memory allocation */
2041 if (crtc_req->count_connectors > config->num_connector) {
2046 connector_set = kmalloc(crtc_req->count_connectors *
2047 sizeof(struct drm_connector *),
2049 if (!connector_set) {
2054 for (i = 0; i < crtc_req->count_connectors; i++) {
2055 set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr;
2056 if (get_user(out_id, &set_connectors_ptr[i])) {
2061 obj = drm_mode_object_find(dev, out_id,
2062 DRM_MODE_OBJECT_CONNECTOR);
2064 DRM_DEBUG_KMS("Connector id %d unknown\n",
2069 connector = obj_to_connector(obj);
2070 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
2072 drm_get_connector_name(connector));
2074 connector_set[i] = connector;
2079 set.x = crtc_req->x;
2080 set.y = crtc_req->y;
2082 set.connectors = connector_set;
2083 set.num_connectors = crtc_req->count_connectors;
2085 ret = drm_mode_set_config_internal(&set);
2089 drm_framebuffer_unreference(fb);
2091 kfree(connector_set);
2092 drm_mode_destroy(dev, mode);
2093 drm_modeset_unlock_all(dev);
2097 int drm_mode_cursor_ioctl(struct drm_device *dev,
2098 void *data, struct drm_file *file_priv)
2100 struct drm_mode_cursor *req = data;
2101 struct drm_mode_object *obj;
2102 struct drm_crtc *crtc;
2105 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2108 if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags))
2111 obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
2113 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
2116 crtc = obj_to_crtc(obj);
2118 mutex_lock(&crtc->mutex);
2119 if (req->flags & DRM_MODE_CURSOR_BO) {
2120 if (!crtc->funcs->cursor_set) {
2124 /* Turns off the cursor if handle is 0 */
2125 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
2126 req->width, req->height);
2129 if (req->flags & DRM_MODE_CURSOR_MOVE) {
2130 if (crtc->funcs->cursor_move) {
2131 ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
2138 mutex_unlock(&crtc->mutex);
2143 /* Original addfb only supported RGB formats, so figure out which one */
2144 uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth)
2150 fmt = DRM_FORMAT_C8;
2154 fmt = DRM_FORMAT_XRGB1555;
2156 fmt = DRM_FORMAT_RGB565;
2159 fmt = DRM_FORMAT_RGB888;
2163 fmt = DRM_FORMAT_XRGB8888;
2164 else if (depth == 30)
2165 fmt = DRM_FORMAT_XRGB2101010;
2167 fmt = DRM_FORMAT_ARGB8888;
2170 DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n");
2171 fmt = DRM_FORMAT_XRGB8888;
2177 EXPORT_SYMBOL(drm_mode_legacy_fb_format);
2180 * drm_mode_addfb - add an FB to the graphics configuration
2181 * @dev: drm device for the ioctl
2182 * @data: data pointer for the ioctl
2183 * @file_priv: drm file for the ioctl call
2185 * Add a new FB to the specified CRTC, given a user request.
2187 * Called by the user via ioctl.
2190 * Zero on success, errno on failure.
2192 int drm_mode_addfb(struct drm_device *dev,
2193 void *data, struct drm_file *file_priv)
2195 struct drm_mode_fb_cmd *or = data;
2196 struct drm_mode_fb_cmd2 r = {};
2197 struct drm_mode_config *config = &dev->mode_config;
2198 struct drm_framebuffer *fb;
2201 /* Use new struct with format internally */
2202 r.fb_id = or->fb_id;
2203 r.width = or->width;
2204 r.height = or->height;
2205 r.pitches[0] = or->pitch;
2206 r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth);
2207 r.handles[0] = or->handle;
2209 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2212 if ((config->min_width > r.width) || (r.width > config->max_width))
2215 if ((config->min_height > r.height) || (r.height > config->max_height))
2218 fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r);
2220 DRM_DEBUG_KMS("could not create framebuffer\n");
2224 mutex_lock(&file_priv->fbs_lock);
2225 or->fb_id = fb->base.id;
2226 list_add(&fb->filp_head, &file_priv->fbs);
2227 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
2228 mutex_unlock(&file_priv->fbs_lock);
2233 static int format_check(const struct drm_mode_fb_cmd2 *r)
2235 uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN;
2239 case DRM_FORMAT_RGB332:
2240 case DRM_FORMAT_BGR233:
2241 case DRM_FORMAT_XRGB4444:
2242 case DRM_FORMAT_XBGR4444:
2243 case DRM_FORMAT_RGBX4444:
2244 case DRM_FORMAT_BGRX4444:
2245 case DRM_FORMAT_ARGB4444:
2246 case DRM_FORMAT_ABGR4444:
2247 case DRM_FORMAT_RGBA4444:
2248 case DRM_FORMAT_BGRA4444:
2249 case DRM_FORMAT_XRGB1555:
2250 case DRM_FORMAT_XBGR1555:
2251 case DRM_FORMAT_RGBX5551:
2252 case DRM_FORMAT_BGRX5551:
2253 case DRM_FORMAT_ARGB1555:
2254 case DRM_FORMAT_ABGR1555:
2255 case DRM_FORMAT_RGBA5551:
2256 case DRM_FORMAT_BGRA5551:
2257 case DRM_FORMAT_RGB565:
2258 case DRM_FORMAT_BGR565:
2259 case DRM_FORMAT_RGB888:
2260 case DRM_FORMAT_BGR888:
2261 case DRM_FORMAT_XRGB8888:
2262 case DRM_FORMAT_XBGR8888:
2263 case DRM_FORMAT_RGBX8888:
2264 case DRM_FORMAT_BGRX8888:
2265 case DRM_FORMAT_ARGB8888:
2266 case DRM_FORMAT_ABGR8888:
2267 case DRM_FORMAT_RGBA8888:
2268 case DRM_FORMAT_BGRA8888:
2269 case DRM_FORMAT_XRGB2101010:
2270 case DRM_FORMAT_XBGR2101010:
2271 case DRM_FORMAT_RGBX1010102:
2272 case DRM_FORMAT_BGRX1010102:
2273 case DRM_FORMAT_ARGB2101010:
2274 case DRM_FORMAT_ABGR2101010:
2275 case DRM_FORMAT_RGBA1010102:
2276 case DRM_FORMAT_BGRA1010102:
2277 case DRM_FORMAT_YUYV:
2278 case DRM_FORMAT_YVYU:
2279 case DRM_FORMAT_UYVY:
2280 case DRM_FORMAT_VYUY:
2281 case DRM_FORMAT_AYUV:
2282 case DRM_FORMAT_NV12:
2283 case DRM_FORMAT_NV21:
2284 case DRM_FORMAT_NV16:
2285 case DRM_FORMAT_NV61:
2286 case DRM_FORMAT_NV24:
2287 case DRM_FORMAT_NV42:
2288 case DRM_FORMAT_YUV410:
2289 case DRM_FORMAT_YVU410:
2290 case DRM_FORMAT_YUV411:
2291 case DRM_FORMAT_YVU411:
2292 case DRM_FORMAT_YUV420:
2293 case DRM_FORMAT_YVU420:
2294 case DRM_FORMAT_YUV422:
2295 case DRM_FORMAT_YVU422:
2296 case DRM_FORMAT_YUV444:
2297 case DRM_FORMAT_YVU444:
2304 static int framebuffer_check(const struct drm_mode_fb_cmd2 *r)
2306 int ret, hsub, vsub, num_planes, i;
2308 ret = format_check(r);
2310 DRM_DEBUG_KMS("bad framebuffer format 0x%08x\n", r->pixel_format);
2314 hsub = drm_format_horz_chroma_subsampling(r->pixel_format);
2315 vsub = drm_format_vert_chroma_subsampling(r->pixel_format);
2316 num_planes = drm_format_num_planes(r->pixel_format);
2318 if (r->width == 0 || r->width % hsub) {
2319 DRM_DEBUG_KMS("bad framebuffer width %u\n", r->height);
2323 if (r->height == 0 || r->height % vsub) {
2324 DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height);
2328 for (i = 0; i < num_planes; i++) {
2329 unsigned int width = r->width / (i != 0 ? hsub : 1);
2330 unsigned int height = r->height / (i != 0 ? vsub : 1);
2331 unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i);
2333 if (!r->handles[i]) {
2334 DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i);
2338 if ((uint64_t) width * cpp > UINT_MAX)
2341 if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX)
2344 if (r->pitches[i] < width * cpp) {
2345 DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i);
2354 * drm_mode_addfb2 - add an FB to the graphics configuration
2355 * @dev: drm device for the ioctl
2356 * @data: data pointer for the ioctl
2357 * @file_priv: drm file for the ioctl call
2359 * Add a new FB to the specified CRTC, given a user request with format.
2361 * Called by the user via ioctl.
2364 * Zero on success, errno on failure.
2366 int drm_mode_addfb2(struct drm_device *dev,
2367 void *data, struct drm_file *file_priv)
2369 struct drm_mode_fb_cmd2 *r = data;
2370 struct drm_mode_config *config = &dev->mode_config;
2371 struct drm_framebuffer *fb;
2374 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2377 if (r->flags & ~DRM_MODE_FB_INTERLACED) {
2378 DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags);
2382 if ((config->min_width > r->width) || (r->width > config->max_width)) {
2383 DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n",
2384 r->width, config->min_width, config->max_width);
2387 if ((config->min_height > r->height) || (r->height > config->max_height)) {
2388 DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n",
2389 r->height, config->min_height, config->max_height);
2393 ret = framebuffer_check(r);
2397 fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
2399 DRM_DEBUG_KMS("could not create framebuffer\n");
2403 mutex_lock(&file_priv->fbs_lock);
2404 r->fb_id = fb->base.id;
2405 list_add(&fb->filp_head, &file_priv->fbs);
2406 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
2407 mutex_unlock(&file_priv->fbs_lock);
2414 * drm_mode_rmfb - remove an FB from the configuration
2415 * @dev: drm device for the ioctl
2416 * @data: data pointer for the ioctl
2417 * @file_priv: drm file for the ioctl call
2419 * Remove the FB specified by the user.
2421 * Called by the user via ioctl.
2424 * Zero on success, errno on failure.
2426 int drm_mode_rmfb(struct drm_device *dev,
2427 void *data, struct drm_file *file_priv)
2429 struct drm_framebuffer *fb = NULL;
2430 struct drm_framebuffer *fbl = NULL;
2431 uint32_t *id = data;
2434 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2437 mutex_lock(&file_priv->fbs_lock);
2438 mutex_lock(&dev->mode_config.fb_lock);
2439 fb = __drm_framebuffer_lookup(dev, *id);
2443 list_for_each_entry(fbl, &file_priv->fbs, filp_head)
2449 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
2450 __drm_framebuffer_unregister(dev, fb);
2452 list_del_init(&fb->filp_head);
2453 mutex_unlock(&dev->mode_config.fb_lock);
2454 mutex_unlock(&file_priv->fbs_lock);
2456 drm_framebuffer_remove(fb);
2461 mutex_unlock(&dev->mode_config.fb_lock);
2462 mutex_unlock(&file_priv->fbs_lock);
2468 * drm_mode_getfb - get FB info
2469 * @dev: drm device for the ioctl
2470 * @data: data pointer for the ioctl
2471 * @file_priv: drm file for the ioctl call
2473 * Lookup the FB given its ID and return info about it.
2475 * Called by the user via ioctl.
2478 * Zero on success, errno on failure.
2480 int drm_mode_getfb(struct drm_device *dev,
2481 void *data, struct drm_file *file_priv)
2483 struct drm_mode_fb_cmd *r = data;
2484 struct drm_framebuffer *fb;
2487 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2490 fb = drm_framebuffer_lookup(dev, r->fb_id);
2494 r->height = fb->height;
2495 r->width = fb->width;
2496 r->depth = fb->depth;
2497 r->bpp = fb->bits_per_pixel;
2498 r->pitch = fb->pitches[0];
2499 if (fb->funcs->create_handle)
2500 ret = fb->funcs->create_handle(fb, file_priv, &r->handle);
2504 drm_framebuffer_unreference(fb);
2509 int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
2510 void *data, struct drm_file *file_priv)
2512 struct drm_clip_rect __user *clips_ptr;
2513 struct drm_clip_rect *clips = NULL;
2514 struct drm_mode_fb_dirty_cmd *r = data;
2515 struct drm_framebuffer *fb;
2520 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2523 fb = drm_framebuffer_lookup(dev, r->fb_id);
2527 num_clips = r->num_clips;
2528 clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr;
2530 if (!num_clips != !clips_ptr) {
2535 flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
2537 /* If userspace annotates copy, clips must come in pairs */
2538 if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
2543 if (num_clips && clips_ptr) {
2544 if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) {
2548 clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
2554 ret = copy_from_user(clips, clips_ptr,
2555 num_clips * sizeof(*clips));
2562 if (fb->funcs->dirty) {
2563 drm_modeset_lock_all(dev);
2564 ret = fb->funcs->dirty(fb, file_priv, flags, r->color,
2566 drm_modeset_unlock_all(dev);
2574 drm_framebuffer_unreference(fb);
2581 * drm_fb_release - remove and free the FBs on this file
2582 * @priv: drm file for the ioctl
2584 * Destroy all the FBs associated with @filp.
2586 * Called by the user via ioctl.
2589 * Zero on success, errno on failure.
2591 void drm_fb_release(struct drm_file *priv)
2593 struct drm_device *dev = priv->minor->dev;
2594 struct drm_framebuffer *fb, *tfb;
2596 mutex_lock(&priv->fbs_lock);
2597 list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
2599 mutex_lock(&dev->mode_config.fb_lock);
2600 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
2601 __drm_framebuffer_unregister(dev, fb);
2602 mutex_unlock(&dev->mode_config.fb_lock);
2604 list_del_init(&fb->filp_head);
2606 /* This will also drop the fpriv->fbs reference. */
2607 drm_framebuffer_remove(fb);
2609 mutex_unlock(&priv->fbs_lock);
2612 struct drm_property *drm_property_create(struct drm_device *dev, int flags,
2613 const char *name, int num_values)
2615 struct drm_property *property = NULL;
2618 property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
2623 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
2624 if (!property->values)
2628 ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
2632 property->flags = flags;
2633 property->num_values = num_values;
2634 INIT_LIST_HEAD(&property->enum_blob_list);
2637 strncpy(property->name, name, DRM_PROP_NAME_LEN);
2638 property->name[DRM_PROP_NAME_LEN-1] = '\0';
2641 list_add_tail(&property->head, &dev->mode_config.property_list);
2644 kfree(property->values);
2648 EXPORT_SYMBOL(drm_property_create);
2650 struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
2652 const struct drm_prop_enum_list *props,
2655 struct drm_property *property;
2658 flags |= DRM_MODE_PROP_ENUM;
2660 property = drm_property_create(dev, flags, name, num_values);
2664 for (i = 0; i < num_values; i++) {
2665 ret = drm_property_add_enum(property, i,
2669 drm_property_destroy(dev, property);
2676 EXPORT_SYMBOL(drm_property_create_enum);
2678 struct drm_property *drm_property_create_bitmask(struct drm_device *dev,
2679 int flags, const char *name,
2680 const struct drm_prop_enum_list *props,
2683 struct drm_property *property;
2686 flags |= DRM_MODE_PROP_BITMASK;
2688 property = drm_property_create(dev, flags, name, num_values);
2692 for (i = 0; i < num_values; i++) {
2693 ret = drm_property_add_enum(property, i,
2697 drm_property_destroy(dev, property);
2704 EXPORT_SYMBOL(drm_property_create_bitmask);
2706 struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
2708 uint64_t min, uint64_t max)
2710 struct drm_property *property;
2712 flags |= DRM_MODE_PROP_RANGE;
2714 property = drm_property_create(dev, flags, name, 2);
2718 property->values[0] = min;
2719 property->values[1] = max;
2723 EXPORT_SYMBOL(drm_property_create_range);
2725 int drm_property_add_enum(struct drm_property *property, int index,
2726 uint64_t value, const char *name)
2728 struct drm_property_enum *prop_enum;
2730 if (!(property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)))
2734 * Bitmask enum properties have the additional constraint of values
2737 if ((property->flags & DRM_MODE_PROP_BITMASK) && (value > 63))
2740 if (!list_empty(&property->enum_blob_list)) {
2741 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2742 if (prop_enum->value == value) {
2743 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2744 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2750 prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
2754 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2755 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2756 prop_enum->value = value;
2758 property->values[index] = value;
2759 list_add_tail(&prop_enum->head, &property->enum_blob_list);
2762 EXPORT_SYMBOL(drm_property_add_enum);
2764 void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
2766 struct drm_property_enum *prop_enum, *pt;
2768 list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
2769 list_del(&prop_enum->head);
2773 if (property->num_values)
2774 kfree(property->values);
2775 drm_mode_object_put(dev, &property->base);
2776 list_del(&property->head);
2779 EXPORT_SYMBOL(drm_property_destroy);
2781 void drm_object_attach_property(struct drm_mode_object *obj,
2782 struct drm_property *property,
2785 int count = obj->properties->count;
2787 if (count == DRM_OBJECT_MAX_PROPERTY) {
2788 WARN(1, "Failed to attach object property (type: 0x%x). Please "
2789 "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time "
2790 "you see this message on the same object type.\n",
2795 obj->properties->ids[count] = property->base.id;
2796 obj->properties->values[count] = init_val;
2797 obj->properties->count++;
2799 EXPORT_SYMBOL(drm_object_attach_property);
2801 int drm_object_property_set_value(struct drm_mode_object *obj,
2802 struct drm_property *property, uint64_t val)
2806 for (i = 0; i < obj->properties->count; i++) {
2807 if (obj->properties->ids[i] == property->base.id) {
2808 obj->properties->values[i] = val;
2815 EXPORT_SYMBOL(drm_object_property_set_value);
2817 int drm_object_property_get_value(struct drm_mode_object *obj,
2818 struct drm_property *property, uint64_t *val)
2822 for (i = 0; i < obj->properties->count; i++) {
2823 if (obj->properties->ids[i] == property->base.id) {
2824 *val = obj->properties->values[i];
2831 EXPORT_SYMBOL(drm_object_property_get_value);
2833 int drm_mode_getproperty_ioctl(struct drm_device *dev,
2834 void *data, struct drm_file *file_priv)
2836 struct drm_mode_object *obj;
2837 struct drm_mode_get_property *out_resp = data;
2838 struct drm_property *property;
2841 int value_count = 0;
2844 struct drm_property_enum *prop_enum;
2845 struct drm_mode_property_enum __user *enum_ptr;
2846 struct drm_property_blob *prop_blob;
2847 uint32_t __user *blob_id_ptr;
2848 uint64_t __user *values_ptr;
2849 uint32_t __user *blob_length_ptr;
2851 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2854 drm_modeset_lock_all(dev);
2855 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2860 property = obj_to_property(obj);
2862 if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) {
2863 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
2865 } else if (property->flags & DRM_MODE_PROP_BLOB) {
2866 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
2870 value_count = property->num_values;
2872 strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
2873 out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
2874 out_resp->flags = property->flags;
2876 if ((out_resp->count_values >= value_count) && value_count) {
2877 values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr;
2878 for (i = 0; i < value_count; i++) {
2879 if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
2885 out_resp->count_values = value_count;
2887 if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) {
2888 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
2890 enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr;
2891 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2893 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
2898 if (copy_to_user(&enum_ptr[copied].name,
2899 &prop_enum->name, DRM_PROP_NAME_LEN)) {
2906 out_resp->count_enum_blobs = enum_count;
2909 if (property->flags & DRM_MODE_PROP_BLOB) {
2910 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
2912 blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr;
2913 blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr;
2915 list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
2916 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
2921 if (put_user(prop_blob->length, blob_length_ptr + copied)) {
2929 out_resp->count_enum_blobs = blob_count;
2932 drm_modeset_unlock_all(dev);
2936 static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
2939 struct drm_property_blob *blob;
2942 if (!length || !data)
2945 blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
2949 ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
2955 blob->length = length;
2957 memcpy(blob->data, data, length);
2959 list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
2963 static void drm_property_destroy_blob(struct drm_device *dev,
2964 struct drm_property_blob *blob)
2966 drm_mode_object_put(dev, &blob->base);
2967 list_del(&blob->head);
2971 int drm_mode_getblob_ioctl(struct drm_device *dev,
2972 void *data, struct drm_file *file_priv)
2974 struct drm_mode_object *obj;
2975 struct drm_mode_get_blob *out_resp = data;
2976 struct drm_property_blob *blob;
2978 void __user *blob_ptr;
2980 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2983 drm_modeset_lock_all(dev);
2984 obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
2989 blob = obj_to_blob(obj);
2991 if (out_resp->length == blob->length) {
2992 blob_ptr = (void __user *)(unsigned long)out_resp->data;
2993 if (copy_to_user(blob_ptr, blob->data, blob->length)){
2998 out_resp->length = blob->length;
3001 drm_modeset_unlock_all(dev);
3005 int drm_mode_connector_update_edid_property(struct drm_connector *connector,
3008 struct drm_device *dev = connector->dev;
3011 if (connector->edid_blob_ptr)
3012 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
3014 /* Delete edid, when there is none. */
3016 connector->edid_blob_ptr = NULL;
3017 ret = drm_object_property_set_value(&connector->base, dev->mode_config.edid_property, 0);
3021 size = EDID_LENGTH * (1 + edid->extensions);
3022 connector->edid_blob_ptr = drm_property_create_blob(connector->dev,
3024 if (!connector->edid_blob_ptr)
3027 ret = drm_object_property_set_value(&connector->base,
3028 dev->mode_config.edid_property,
3029 connector->edid_blob_ptr->base.id);
3033 EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
3035 static bool drm_property_change_is_valid(struct drm_property *property,
3038 if (property->flags & DRM_MODE_PROP_IMMUTABLE)
3040 if (property->flags & DRM_MODE_PROP_RANGE) {
3041 if (value < property->values[0] || value > property->values[1])
3044 } else if (property->flags & DRM_MODE_PROP_BITMASK) {
3046 uint64_t valid_mask = 0;
3047 for (i = 0; i < property->num_values; i++)
3048 valid_mask |= (1ULL << property->values[i]);
3049 return !(value & ~valid_mask);
3050 } else if (property->flags & DRM_MODE_PROP_BLOB) {
3051 /* Only the driver knows */
3055 for (i = 0; i < property->num_values; i++)
3056 if (property->values[i] == value)
3062 int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
3063 void *data, struct drm_file *file_priv)
3065 struct drm_mode_connector_set_property *conn_set_prop = data;
3066 struct drm_mode_obj_set_property obj_set_prop = {
3067 .value = conn_set_prop->value,
3068 .prop_id = conn_set_prop->prop_id,
3069 .obj_id = conn_set_prop->connector_id,
3070 .obj_type = DRM_MODE_OBJECT_CONNECTOR
3073 /* It does all the locking and checking we need */
3074 return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv);
3077 static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj,
3078 struct drm_property *property,
3082 struct drm_connector *connector = obj_to_connector(obj);
3084 /* Do DPMS ourselves */
3085 if (property == connector->dev->mode_config.dpms_property) {
3086 if (connector->funcs->dpms)
3087 (*connector->funcs->dpms)(connector, (int)value);
3089 } else if (connector->funcs->set_property)
3090 ret = connector->funcs->set_property(connector, property, value);
3092 /* store the property value if successful */
3094 drm_object_property_set_value(&connector->base, property, value);
3098 static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj,
3099 struct drm_property *property,
3103 struct drm_crtc *crtc = obj_to_crtc(obj);
3105 if (crtc->funcs->set_property)
3106 ret = crtc->funcs->set_property(crtc, property, value);
3108 drm_object_property_set_value(obj, property, value);
3113 static int drm_mode_plane_set_obj_prop(struct drm_mode_object *obj,
3114 struct drm_property *property,
3118 struct drm_plane *plane = obj_to_plane(obj);
3120 if (plane->funcs->set_property)
3121 ret = plane->funcs->set_property(plane, property, value);
3123 drm_object_property_set_value(obj, property, value);
3128 int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
3129 struct drm_file *file_priv)
3131 struct drm_mode_obj_get_properties *arg = data;
3132 struct drm_mode_object *obj;
3136 int props_count = 0;
3137 uint32_t __user *props_ptr;
3138 uint64_t __user *prop_values_ptr;
3140 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3143 drm_modeset_lock_all(dev);
3145 obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
3150 if (!obj->properties) {
3155 props_count = obj->properties->count;
3157 /* This ioctl is called twice, once to determine how much space is
3158 * needed, and the 2nd time to fill it. */
3159 if ((arg->count_props >= props_count) && props_count) {
3161 props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr);
3162 prop_values_ptr = (uint64_t __user *)(unsigned long)
3163 (arg->prop_values_ptr);
3164 for (i = 0; i < props_count; i++) {
3165 if (put_user(obj->properties->ids[i],
3166 props_ptr + copied)) {
3170 if (put_user(obj->properties->values[i],
3171 prop_values_ptr + copied)) {
3178 arg->count_props = props_count;
3180 drm_modeset_unlock_all(dev);
3184 int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
3185 struct drm_file *file_priv)
3187 struct drm_mode_obj_set_property *arg = data;
3188 struct drm_mode_object *arg_obj;
3189 struct drm_mode_object *prop_obj;
3190 struct drm_property *property;
3194 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3197 drm_modeset_lock_all(dev);
3199 arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
3202 if (!arg_obj->properties)
3205 for (i = 0; i < arg_obj->properties->count; i++)
3206 if (arg_obj->properties->ids[i] == arg->prop_id)
3209 if (i == arg_obj->properties->count)
3212 prop_obj = drm_mode_object_find(dev, arg->prop_id,
3213 DRM_MODE_OBJECT_PROPERTY);
3216 property = obj_to_property(prop_obj);
3218 if (!drm_property_change_is_valid(property, arg->value))
3221 switch (arg_obj->type) {
3222 case DRM_MODE_OBJECT_CONNECTOR:
3223 ret = drm_mode_connector_set_obj_prop(arg_obj, property,
3226 case DRM_MODE_OBJECT_CRTC:
3227 ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value);
3229 case DRM_MODE_OBJECT_PLANE:
3230 ret = drm_mode_plane_set_obj_prop(arg_obj, property, arg->value);
3235 drm_modeset_unlock_all(dev);
3239 int drm_mode_connector_attach_encoder(struct drm_connector *connector,
3240 struct drm_encoder *encoder)
3244 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3245 if (connector->encoder_ids[i] == 0) {
3246 connector->encoder_ids[i] = encoder->base.id;
3252 EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
3254 void drm_mode_connector_detach_encoder(struct drm_connector *connector,
3255 struct drm_encoder *encoder)
3258 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3259 if (connector->encoder_ids[i] == encoder->base.id) {
3260 connector->encoder_ids[i] = 0;
3261 if (connector->encoder == encoder)
3262 connector->encoder = NULL;
3267 EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
3269 int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
3272 crtc->gamma_size = gamma_size;
3274 crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
3275 if (!crtc->gamma_store) {
3276 crtc->gamma_size = 0;
3282 EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
3284 int drm_mode_gamma_set_ioctl(struct drm_device *dev,
3285 void *data, struct drm_file *file_priv)
3287 struct drm_mode_crtc_lut *crtc_lut = data;
3288 struct drm_mode_object *obj;
3289 struct drm_crtc *crtc;
3290 void *r_base, *g_base, *b_base;
3294 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3297 drm_modeset_lock_all(dev);
3298 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3303 crtc = obj_to_crtc(obj);
3305 if (crtc->funcs->gamma_set == NULL) {
3310 /* memcpy into gamma store */
3311 if (crtc_lut->gamma_size != crtc->gamma_size) {
3316 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3317 r_base = crtc->gamma_store;
3318 if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
3323 g_base = r_base + size;
3324 if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
3329 b_base = g_base + size;
3330 if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
3335 crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
3338 drm_modeset_unlock_all(dev);
3343 int drm_mode_gamma_get_ioctl(struct drm_device *dev,
3344 void *data, struct drm_file *file_priv)
3346 struct drm_mode_crtc_lut *crtc_lut = data;
3347 struct drm_mode_object *obj;
3348 struct drm_crtc *crtc;
3349 void *r_base, *g_base, *b_base;
3353 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3356 drm_modeset_lock_all(dev);
3357 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3362 crtc = obj_to_crtc(obj);
3364 /* memcpy into gamma store */
3365 if (crtc_lut->gamma_size != crtc->gamma_size) {
3370 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3371 r_base = crtc->gamma_store;
3372 if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
3377 g_base = r_base + size;
3378 if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
3383 b_base = g_base + size;
3384 if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
3389 drm_modeset_unlock_all(dev);
3393 int drm_mode_page_flip_ioctl(struct drm_device *dev,
3394 void *data, struct drm_file *file_priv)
3396 struct drm_mode_crtc_page_flip *page_flip = data;
3397 struct drm_mode_object *obj;
3398 struct drm_crtc *crtc;
3399 struct drm_framebuffer *fb = NULL, *old_fb = NULL;
3400 struct drm_pending_vblank_event *e = NULL;
3401 unsigned long flags;
3402 int hdisplay, vdisplay;
3405 if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
3406 page_flip->reserved != 0)
3409 obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
3412 crtc = obj_to_crtc(obj);
3414 mutex_lock(&crtc->mutex);
3415 if (crtc->fb == NULL) {
3416 /* The framebuffer is currently unbound, presumably
3417 * due to a hotplug event, that userspace has not
3424 if (crtc->funcs->page_flip == NULL)
3427 fb = drm_framebuffer_lookup(dev, page_flip->fb_id);
3431 hdisplay = crtc->mode.hdisplay;
3432 vdisplay = crtc->mode.vdisplay;
3434 if (crtc->invert_dimensions)
3435 swap(hdisplay, vdisplay);
3437 if (hdisplay > fb->width ||
3438 vdisplay > fb->height ||
3439 crtc->x > fb->width - hdisplay ||
3440 crtc->y > fb->height - vdisplay) {
3441 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
3442 fb->width, fb->height, hdisplay, vdisplay, crtc->x, crtc->y,
3443 crtc->invert_dimensions ? " (inverted)" : "");
3448 if (crtc->fb->pixel_format != fb->pixel_format) {
3449 DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n");
3454 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3456 spin_lock_irqsave(&dev->event_lock, flags);
3457 if (file_priv->event_space < sizeof e->event) {
3458 spin_unlock_irqrestore(&dev->event_lock, flags);
3461 file_priv->event_space -= sizeof e->event;
3462 spin_unlock_irqrestore(&dev->event_lock, flags);
3464 e = kzalloc(sizeof *e, GFP_KERNEL);
3466 spin_lock_irqsave(&dev->event_lock, flags);
3467 file_priv->event_space += sizeof e->event;
3468 spin_unlock_irqrestore(&dev->event_lock, flags);
3472 e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
3473 e->event.base.length = sizeof e->event;
3474 e->event.user_data = page_flip->user_data;
3475 e->base.event = &e->event.base;
3476 e->base.file_priv = file_priv;
3478 (void (*) (struct drm_pending_event *)) kfree;
3482 ret = crtc->funcs->page_flip(crtc, fb, e);
3484 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3485 spin_lock_irqsave(&dev->event_lock, flags);
3486 file_priv->event_space += sizeof e->event;
3487 spin_unlock_irqrestore(&dev->event_lock, flags);
3490 /* Keep the old fb, don't unref it. */
3494 * Warn if the driver hasn't properly updated the crtc->fb
3495 * field to reflect that the new framebuffer is now used.
3496 * Failing to do so will screw with the reference counting
3499 WARN_ON(crtc->fb != fb);
3500 /* Unref only the old framebuffer. */
3506 drm_framebuffer_unreference(fb);
3508 drm_framebuffer_unreference(old_fb);
3509 mutex_unlock(&crtc->mutex);
3514 void drm_mode_config_reset(struct drm_device *dev)
3516 struct drm_crtc *crtc;
3517 struct drm_encoder *encoder;
3518 struct drm_connector *connector;
3520 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
3521 if (crtc->funcs->reset)
3522 crtc->funcs->reset(crtc);
3524 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
3525 if (encoder->funcs->reset)
3526 encoder->funcs->reset(encoder);
3528 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
3529 connector->status = connector_status_unknown;
3531 if (connector->funcs->reset)
3532 connector->funcs->reset(connector);
3535 EXPORT_SYMBOL(drm_mode_config_reset);
3537 int drm_mode_create_dumb_ioctl(struct drm_device *dev,
3538 void *data, struct drm_file *file_priv)
3540 struct drm_mode_create_dumb *args = data;
3542 if (!dev->driver->dumb_create)
3544 return dev->driver->dumb_create(file_priv, dev, args);
3547 int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
3548 void *data, struct drm_file *file_priv)
3550 struct drm_mode_map_dumb *args = data;
3552 /* call driver ioctl to get mmap offset */
3553 if (!dev->driver->dumb_map_offset)
3556 return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset);
3559 int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
3560 void *data, struct drm_file *file_priv)
3562 struct drm_mode_destroy_dumb *args = data;
3564 if (!dev->driver->dumb_destroy)
3567 return dev->driver->dumb_destroy(file_priv, dev, args->handle);
3571 * Just need to support RGB formats here for compat with code that doesn't
3572 * use pixel formats directly yet.
3574 void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
3579 case DRM_FORMAT_RGB332:
3580 case DRM_FORMAT_BGR233:
3584 case DRM_FORMAT_XRGB1555:
3585 case DRM_FORMAT_XBGR1555:
3586 case DRM_FORMAT_RGBX5551:
3587 case DRM_FORMAT_BGRX5551:
3588 case DRM_FORMAT_ARGB1555:
3589 case DRM_FORMAT_ABGR1555:
3590 case DRM_FORMAT_RGBA5551:
3591 case DRM_FORMAT_BGRA5551:
3595 case DRM_FORMAT_RGB565:
3596 case DRM_FORMAT_BGR565:
3600 case DRM_FORMAT_RGB888:
3601 case DRM_FORMAT_BGR888:
3605 case DRM_FORMAT_XRGB8888:
3606 case DRM_FORMAT_XBGR8888:
3607 case DRM_FORMAT_RGBX8888:
3608 case DRM_FORMAT_BGRX8888:
3612 case DRM_FORMAT_XRGB2101010:
3613 case DRM_FORMAT_XBGR2101010:
3614 case DRM_FORMAT_RGBX1010102:
3615 case DRM_FORMAT_BGRX1010102:
3616 case DRM_FORMAT_ARGB2101010:
3617 case DRM_FORMAT_ABGR2101010:
3618 case DRM_FORMAT_RGBA1010102:
3619 case DRM_FORMAT_BGRA1010102:
3623 case DRM_FORMAT_ARGB8888:
3624 case DRM_FORMAT_ABGR8888:
3625 case DRM_FORMAT_RGBA8888:
3626 case DRM_FORMAT_BGRA8888:
3631 DRM_DEBUG_KMS("unsupported pixel format\n");
3637 EXPORT_SYMBOL(drm_fb_get_bpp_depth);
3640 * drm_format_num_planes - get the number of planes for format
3641 * @format: pixel format (DRM_FORMAT_*)
3644 * The number of planes used by the specified pixel format.
3646 int drm_format_num_planes(uint32_t format)
3649 case DRM_FORMAT_YUV410:
3650 case DRM_FORMAT_YVU410:
3651 case DRM_FORMAT_YUV411:
3652 case DRM_FORMAT_YVU411:
3653 case DRM_FORMAT_YUV420:
3654 case DRM_FORMAT_YVU420:
3655 case DRM_FORMAT_YUV422:
3656 case DRM_FORMAT_YVU422:
3657 case DRM_FORMAT_YUV444:
3658 case DRM_FORMAT_YVU444:
3660 case DRM_FORMAT_NV12:
3661 case DRM_FORMAT_NV21:
3662 case DRM_FORMAT_NV16:
3663 case DRM_FORMAT_NV61:
3664 case DRM_FORMAT_NV24:
3665 case DRM_FORMAT_NV42:
3671 EXPORT_SYMBOL(drm_format_num_planes);
3674 * drm_format_plane_cpp - determine the bytes per pixel value
3675 * @format: pixel format (DRM_FORMAT_*)
3676 * @plane: plane index
3679 * The bytes per pixel value for the specified plane.
3681 int drm_format_plane_cpp(uint32_t format, int plane)
3686 if (plane >= drm_format_num_planes(format))
3690 case DRM_FORMAT_YUYV:
3691 case DRM_FORMAT_YVYU:
3692 case DRM_FORMAT_UYVY:
3693 case DRM_FORMAT_VYUY:
3695 case DRM_FORMAT_NV12:
3696 case DRM_FORMAT_NV21:
3697 case DRM_FORMAT_NV16:
3698 case DRM_FORMAT_NV61:
3699 case DRM_FORMAT_NV24:
3700 case DRM_FORMAT_NV42:
3701 return plane ? 2 : 1;
3702 case DRM_FORMAT_YUV410:
3703 case DRM_FORMAT_YVU410:
3704 case DRM_FORMAT_YUV411:
3705 case DRM_FORMAT_YVU411:
3706 case DRM_FORMAT_YUV420:
3707 case DRM_FORMAT_YVU420:
3708 case DRM_FORMAT_YUV422:
3709 case DRM_FORMAT_YVU422:
3710 case DRM_FORMAT_YUV444:
3711 case DRM_FORMAT_YVU444:
3714 drm_fb_get_bpp_depth(format, &depth, &bpp);
3718 EXPORT_SYMBOL(drm_format_plane_cpp);
3721 * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor
3722 * @format: pixel format (DRM_FORMAT_*)
3725 * The horizontal chroma subsampling factor for the
3726 * specified pixel format.
3728 int drm_format_horz_chroma_subsampling(uint32_t format)
3731 case DRM_FORMAT_YUV411:
3732 case DRM_FORMAT_YVU411:
3733 case DRM_FORMAT_YUV410:
3734 case DRM_FORMAT_YVU410:
3736 case DRM_FORMAT_YUYV:
3737 case DRM_FORMAT_YVYU:
3738 case DRM_FORMAT_UYVY:
3739 case DRM_FORMAT_VYUY:
3740 case DRM_FORMAT_NV12:
3741 case DRM_FORMAT_NV21:
3742 case DRM_FORMAT_NV16:
3743 case DRM_FORMAT_NV61:
3744 case DRM_FORMAT_YUV422:
3745 case DRM_FORMAT_YVU422:
3746 case DRM_FORMAT_YUV420:
3747 case DRM_FORMAT_YVU420:
3753 EXPORT_SYMBOL(drm_format_horz_chroma_subsampling);
3756 * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor
3757 * @format: pixel format (DRM_FORMAT_*)
3760 * The vertical chroma subsampling factor for the
3761 * specified pixel format.
3763 int drm_format_vert_chroma_subsampling(uint32_t format)
3766 case DRM_FORMAT_YUV410:
3767 case DRM_FORMAT_YVU410:
3769 case DRM_FORMAT_YUV420:
3770 case DRM_FORMAT_YVU420:
3771 case DRM_FORMAT_NV12:
3772 case DRM_FORMAT_NV21:
3778 EXPORT_SYMBOL(drm_format_vert_chroma_subsampling);
3781 * drm_mode_config_init - initialize DRM mode_configuration structure
3784 * Initialize @dev's mode_config structure, used for tracking the graphics
3785 * configuration of @dev.
3787 * Since this initializes the modeset locks, no locking is possible. Which is no
3788 * problem, since this should happen single threaded at init time. It is the
3789 * driver's problem to ensure this guarantee.
3792 void drm_mode_config_init(struct drm_device *dev)
3794 mutex_init(&dev->mode_config.mutex);
3795 mutex_init(&dev->mode_config.idr_mutex);
3796 mutex_init(&dev->mode_config.fb_lock);
3797 INIT_LIST_HEAD(&dev->mode_config.fb_list);
3798 INIT_LIST_HEAD(&dev->mode_config.crtc_list);
3799 INIT_LIST_HEAD(&dev->mode_config.connector_list);
3800 INIT_LIST_HEAD(&dev->mode_config.encoder_list);
3801 INIT_LIST_HEAD(&dev->mode_config.property_list);
3802 INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
3803 INIT_LIST_HEAD(&dev->mode_config.plane_list);
3804 idr_init(&dev->mode_config.crtc_idr);
3806 drm_modeset_lock_all(dev);
3807 drm_mode_create_standard_connector_properties(dev);
3808 drm_modeset_unlock_all(dev);
3810 /* Just to be sure */
3811 dev->mode_config.num_fb = 0;
3812 dev->mode_config.num_connector = 0;
3813 dev->mode_config.num_crtc = 0;
3814 dev->mode_config.num_encoder = 0;
3816 EXPORT_SYMBOL(drm_mode_config_init);
3819 * drm_mode_config_cleanup - free up DRM mode_config info
3822 * Free up all the connectors and CRTCs associated with this DRM device, then
3823 * free up the framebuffers and associated buffer objects.
3825 * Note that since this /should/ happen single-threaded at driver/device
3826 * teardown time, no locking is required. It's the driver's job to ensure that
3827 * this guarantee actually holds true.
3829 * FIXME: cleanup any dangling user buffer objects too
3831 void drm_mode_config_cleanup(struct drm_device *dev)
3833 struct drm_connector *connector, *ot;
3834 struct drm_crtc *crtc, *ct;
3835 struct drm_encoder *encoder, *enct;
3836 struct drm_framebuffer *fb, *fbt;
3837 struct drm_property *property, *pt;
3838 struct drm_property_blob *blob, *bt;
3839 struct drm_plane *plane, *plt;
3841 list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
3843 encoder->funcs->destroy(encoder);
3846 list_for_each_entry_safe(connector, ot,
3847 &dev->mode_config.connector_list, head) {
3848 connector->funcs->destroy(connector);
3851 list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
3853 drm_property_destroy(dev, property);
3856 list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list,
3858 drm_property_destroy_blob(dev, blob);
3862 * Single-threaded teardown context, so it's not required to grab the
3863 * fb_lock to protect against concurrent fb_list access. Contrary, it
3864 * would actually deadlock with the drm_framebuffer_cleanup function.
3866 * Also, if there are any framebuffers left, that's a driver leak now,
3867 * so politely WARN about this.
3869 WARN_ON(!list_empty(&dev->mode_config.fb_list));
3870 list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
3871 drm_framebuffer_remove(fb);
3874 list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
3876 plane->funcs->destroy(plane);
3879 list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
3880 crtc->funcs->destroy(crtc);
3883 idr_destroy(&dev->mode_config.crtc_idr);
3885 EXPORT_SYMBOL(drm_mode_config_cleanup);