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 DRM_ENUM_NAME_FN(drm_get_dirty_info_name,
182 drm_dirty_info_enum_list)
184 struct drm_conn_prop_enum_list {
191 * Connector and encoder types.
193 static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
194 { { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 },
195 { DRM_MODE_CONNECTOR_VGA, "VGA", 0 },
196 { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 },
197 { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 },
198 { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 },
199 { DRM_MODE_CONNECTOR_Composite, "Composite", 0 },
200 { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 },
201 { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 },
202 { DRM_MODE_CONNECTOR_Component, "Component", 0 },
203 { DRM_MODE_CONNECTOR_9PinDIN, "DIN", 0 },
204 { DRM_MODE_CONNECTOR_DisplayPort, "DP", 0 },
205 { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A", 0 },
206 { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B", 0 },
207 { DRM_MODE_CONNECTOR_TV, "TV", 0 },
208 { DRM_MODE_CONNECTOR_eDP, "eDP", 0 },
209 { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual", 0},
212 static struct drm_prop_enum_list drm_encoder_enum_list[] =
213 { { DRM_MODE_ENCODER_NONE, "None" },
214 { DRM_MODE_ENCODER_DAC, "DAC" },
215 { DRM_MODE_ENCODER_TMDS, "TMDS" },
216 { DRM_MODE_ENCODER_LVDS, "LVDS" },
217 { DRM_MODE_ENCODER_TVDAC, "TV" },
218 { DRM_MODE_ENCODER_VIRTUAL, "Virtual" },
221 char *drm_get_encoder_name(struct drm_encoder *encoder)
225 snprintf(buf, 32, "%s-%d",
226 drm_encoder_enum_list[encoder->encoder_type].name,
230 EXPORT_SYMBOL(drm_get_encoder_name);
232 char *drm_get_connector_name(struct drm_connector *connector)
236 snprintf(buf, 32, "%s-%d",
237 drm_connector_enum_list[connector->connector_type].name,
238 connector->connector_type_id);
241 EXPORT_SYMBOL(drm_get_connector_name);
243 char *drm_get_connector_status_name(enum drm_connector_status status)
245 if (status == connector_status_connected)
247 else if (status == connector_status_disconnected)
248 return "disconnected";
254 * drm_mode_object_get - allocate a new modeset identifier
256 * @obj: object pointer, used to generate unique ID
257 * @obj_type: object type
259 * Create a unique identifier based on @ptr in @dev's identifier space. Used
260 * for tracking modes, CRTCs and connectors.
263 * New unique (relative to other objects in @dev) integer identifier for the
266 static int drm_mode_object_get(struct drm_device *dev,
267 struct drm_mode_object *obj, uint32_t obj_type)
271 mutex_lock(&dev->mode_config.idr_mutex);
272 ret = idr_alloc(&dev->mode_config.crtc_idr, obj, 1, 0, GFP_KERNEL);
275 * Set up the object linking under the protection of the idr
276 * lock so that other users can't see inconsistent state.
279 obj->type = obj_type;
281 mutex_unlock(&dev->mode_config.idr_mutex);
283 return ret < 0 ? ret : 0;
287 * drm_mode_object_put - free a modeset identifer
289 * @object: object to free
291 * Free @id from @dev's unique identifier pool.
293 static void drm_mode_object_put(struct drm_device *dev,
294 struct drm_mode_object *object)
296 mutex_lock(&dev->mode_config.idr_mutex);
297 idr_remove(&dev->mode_config.crtc_idr, object->id);
298 mutex_unlock(&dev->mode_config.idr_mutex);
302 * drm_mode_object_find - look up a drm object with static lifetime
304 * @id: id of the mode object
305 * @type: type of the mode object
307 * Note that framebuffers cannot be looked up with this functions - since those
308 * are reference counted, they need special treatment.
310 struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
311 uint32_t id, uint32_t type)
313 struct drm_mode_object *obj = NULL;
315 /* Framebuffers are reference counted and need their own lookup
317 WARN_ON(type == DRM_MODE_OBJECT_FB);
319 mutex_lock(&dev->mode_config.idr_mutex);
320 obj = idr_find(&dev->mode_config.crtc_idr, id);
321 if (!obj || (obj->type != type) || (obj->id != id))
323 mutex_unlock(&dev->mode_config.idr_mutex);
327 EXPORT_SYMBOL(drm_mode_object_find);
330 * drm_framebuffer_init - initialize a framebuffer
332 * @fb: framebuffer to be initialized
333 * @funcs: ... with these functions
335 * Allocates an ID for the framebuffer's parent mode object, sets its mode
336 * functions & device file and adds it to the master fd list.
339 * This functions publishes the fb and makes it available for concurrent access
340 * by other users. Which means by this point the fb _must_ be fully set up -
341 * since all the fb attributes are invariant over its lifetime, no further
342 * locking but only correct reference counting is required.
345 * Zero on success, error code on failure.
347 int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
348 const struct drm_framebuffer_funcs *funcs)
352 mutex_lock(&dev->mode_config.fb_lock);
353 kref_init(&fb->refcount);
354 INIT_LIST_HEAD(&fb->filp_head);
358 ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
362 /* Grab the idr reference. */
363 drm_framebuffer_reference(fb);
365 dev->mode_config.num_fb++;
366 list_add(&fb->head, &dev->mode_config.fb_list);
368 mutex_unlock(&dev->mode_config.fb_lock);
372 EXPORT_SYMBOL(drm_framebuffer_init);
374 static void drm_framebuffer_free(struct kref *kref)
376 struct drm_framebuffer *fb =
377 container_of(kref, struct drm_framebuffer, refcount);
378 fb->funcs->destroy(fb);
381 static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev,
384 struct drm_mode_object *obj = NULL;
385 struct drm_framebuffer *fb;
387 mutex_lock(&dev->mode_config.idr_mutex);
388 obj = idr_find(&dev->mode_config.crtc_idr, id);
389 if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id))
393 mutex_unlock(&dev->mode_config.idr_mutex);
399 * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference
401 * @id: id of the fb object
403 * If successful, this grabs an additional reference to the framebuffer -
404 * callers need to make sure to eventually unreference the returned framebuffer
407 struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev,
410 struct drm_framebuffer *fb;
412 mutex_lock(&dev->mode_config.fb_lock);
413 fb = __drm_framebuffer_lookup(dev, id);
415 kref_get(&fb->refcount);
416 mutex_unlock(&dev->mode_config.fb_lock);
420 EXPORT_SYMBOL(drm_framebuffer_lookup);
423 * drm_framebuffer_unreference - unref a framebuffer
424 * @fb: framebuffer to unref
426 * This functions decrements the fb's refcount and frees it if it drops to zero.
428 void drm_framebuffer_unreference(struct drm_framebuffer *fb)
430 DRM_DEBUG("FB ID: %d\n", fb->base.id);
431 kref_put(&fb->refcount, drm_framebuffer_free);
433 EXPORT_SYMBOL(drm_framebuffer_unreference);
436 * drm_framebuffer_reference - incr the fb refcnt
439 void drm_framebuffer_reference(struct drm_framebuffer *fb)
441 DRM_DEBUG("FB ID: %d\n", fb->base.id);
442 kref_get(&fb->refcount);
444 EXPORT_SYMBOL(drm_framebuffer_reference);
446 static void drm_framebuffer_free_bug(struct kref *kref)
451 static void __drm_framebuffer_unreference(struct drm_framebuffer *fb)
453 DRM_DEBUG("FB ID: %d\n", fb->base.id);
454 kref_put(&fb->refcount, drm_framebuffer_free_bug);
457 /* dev->mode_config.fb_lock must be held! */
458 static void __drm_framebuffer_unregister(struct drm_device *dev,
459 struct drm_framebuffer *fb)
461 mutex_lock(&dev->mode_config.idr_mutex);
462 idr_remove(&dev->mode_config.crtc_idr, fb->base.id);
463 mutex_unlock(&dev->mode_config.idr_mutex);
467 __drm_framebuffer_unreference(fb);
471 * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr
472 * @fb: fb to unregister
474 * Drivers need to call this when cleaning up driver-private framebuffers, e.g.
475 * those used for fbdev. Note that the caller must hold a reference of it's own,
476 * i.e. the object may not be destroyed through this call (since it'll lead to a
477 * locking inversion).
479 void drm_framebuffer_unregister_private(struct drm_framebuffer *fb)
481 struct drm_device *dev = fb->dev;
483 mutex_lock(&dev->mode_config.fb_lock);
484 /* Mark fb as reaped and drop idr ref. */
485 __drm_framebuffer_unregister(dev, fb);
486 mutex_unlock(&dev->mode_config.fb_lock);
488 EXPORT_SYMBOL(drm_framebuffer_unregister_private);
491 * drm_framebuffer_cleanup - remove a framebuffer object
492 * @fb: framebuffer to remove
494 * Cleanup references to a user-created framebuffer. This function is intended
495 * to be used from the drivers ->destroy callback.
497 * Note that this function does not remove the fb from active usuage - if it is
498 * still used anywhere, hilarity can ensue since userspace could call getfb on
499 * the id and get back -EINVAL. Obviously no concern at driver unload time.
501 * Also, the framebuffer will not be removed from the lookup idr - for
502 * user-created framebuffers this will happen in in the rmfb ioctl. For
503 * driver-private objects (e.g. for fbdev) drivers need to explicitly call
504 * drm_framebuffer_unregister_private.
506 void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
508 struct drm_device *dev = fb->dev;
510 mutex_lock(&dev->mode_config.fb_lock);
512 dev->mode_config.num_fb--;
513 mutex_unlock(&dev->mode_config.fb_lock);
515 EXPORT_SYMBOL(drm_framebuffer_cleanup);
518 * drm_framebuffer_remove - remove and unreference a framebuffer object
519 * @fb: framebuffer to remove
521 * Scans all the CRTCs and planes in @dev's mode_config. If they're
522 * using @fb, removes it, setting it to NULL. Then drops the reference to the
523 * passed-in framebuffer. Might take the modeset locks.
525 * Note that this function optimizes the cleanup away if the caller holds the
526 * last reference to the framebuffer. It is also guaranteed to not take the
527 * modeset locks in this case.
529 void drm_framebuffer_remove(struct drm_framebuffer *fb)
531 struct drm_device *dev = fb->dev;
532 struct drm_crtc *crtc;
533 struct drm_plane *plane;
534 struct drm_mode_set set;
537 WARN_ON(!list_empty(&fb->filp_head));
540 * drm ABI mandates that we remove any deleted framebuffers from active
541 * useage. But since most sane clients only remove framebuffers they no
542 * longer need, try to optimize this away.
544 * Since we're holding a reference ourselves, observing a refcount of 1
545 * means that we're the last holder and can skip it. Also, the refcount
546 * can never increase from 1 again, so we don't need any barriers or
549 * Note that userspace could try to race with use and instate a new
550 * usage _after_ we've cleared all current ones. End result will be an
551 * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot
554 if (atomic_read(&fb->refcount.refcount) > 1) {
555 drm_modeset_lock_all(dev);
556 /* remove from any CRTC */
557 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
558 if (crtc->fb == fb) {
559 /* should turn off the crtc */
560 memset(&set, 0, sizeof(struct drm_mode_set));
563 ret = drm_mode_set_config_internal(&set);
565 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
569 list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
570 if (plane->fb == fb) {
571 /* should turn off the crtc */
572 ret = plane->funcs->disable_plane(plane);
574 DRM_ERROR("failed to disable plane with busy fb\n");
575 /* disconnect the plane from the fb and crtc: */
576 __drm_framebuffer_unreference(plane->fb);
581 drm_modeset_unlock_all(dev);
584 drm_framebuffer_unreference(fb);
586 EXPORT_SYMBOL(drm_framebuffer_remove);
589 * drm_crtc_init - Initialise a new CRTC object
591 * @crtc: CRTC object to init
592 * @funcs: callbacks for the new CRTC
594 * Inits a new object created as base part of an driver crtc object.
597 * Zero on success, error code on failure.
599 int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
600 const struct drm_crtc_funcs *funcs)
606 crtc->invert_dimensions = false;
608 drm_modeset_lock_all(dev);
609 mutex_init(&crtc->mutex);
610 mutex_lock_nest_lock(&crtc->mutex, &dev->mode_config.mutex);
612 ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
616 crtc->base.properties = &crtc->properties;
618 list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
619 dev->mode_config.num_crtc++;
622 drm_modeset_unlock_all(dev);
626 EXPORT_SYMBOL(drm_crtc_init);
629 * drm_crtc_cleanup - Cleans up the core crtc usage.
630 * @crtc: CRTC to cleanup
632 * Cleanup @crtc. Removes from drm modesetting space
633 * does NOT free object, caller does that.
635 void drm_crtc_cleanup(struct drm_crtc *crtc)
637 struct drm_device *dev = crtc->dev;
639 kfree(crtc->gamma_store);
640 crtc->gamma_store = NULL;
642 drm_mode_object_put(dev, &crtc->base);
643 list_del(&crtc->head);
644 dev->mode_config.num_crtc--;
646 EXPORT_SYMBOL(drm_crtc_cleanup);
649 * drm_mode_probed_add - add a mode to a connector's probed mode list
650 * @connector: connector the new mode
653 * Add @mode to @connector's mode list for later use.
655 void drm_mode_probed_add(struct drm_connector *connector,
656 struct drm_display_mode *mode)
658 list_add(&mode->head, &connector->probed_modes);
660 EXPORT_SYMBOL(drm_mode_probed_add);
663 * drm_mode_remove - remove and free a mode
664 * @connector: connector list to modify
665 * @mode: mode to remove
667 * Remove @mode from @connector's mode list, then free it.
669 void drm_mode_remove(struct drm_connector *connector,
670 struct drm_display_mode *mode)
672 list_del(&mode->head);
673 drm_mode_destroy(connector->dev, mode);
675 EXPORT_SYMBOL(drm_mode_remove);
678 * drm_connector_init - Init a preallocated connector
680 * @connector: the connector to init
681 * @funcs: callbacks for this connector
682 * @connector_type: user visible type of the connector
684 * Initialises a preallocated connector. Connectors should be
685 * subclassed as part of driver connector objects.
688 * Zero on success, error code on failure.
690 int drm_connector_init(struct drm_device *dev,
691 struct drm_connector *connector,
692 const struct drm_connector_funcs *funcs,
697 drm_modeset_lock_all(dev);
699 ret = drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
703 connector->base.properties = &connector->properties;
704 connector->dev = dev;
705 connector->funcs = funcs;
706 connector->connector_type = connector_type;
707 connector->connector_type_id =
708 ++drm_connector_enum_list[connector_type].count; /* TODO */
709 INIT_LIST_HEAD(&connector->user_modes);
710 INIT_LIST_HEAD(&connector->probed_modes);
711 INIT_LIST_HEAD(&connector->modes);
712 connector->edid_blob_ptr = NULL;
713 connector->status = connector_status_unknown;
715 list_add_tail(&connector->head, &dev->mode_config.connector_list);
716 dev->mode_config.num_connector++;
718 if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL)
719 drm_object_attach_property(&connector->base,
720 dev->mode_config.edid_property,
723 drm_object_attach_property(&connector->base,
724 dev->mode_config.dpms_property, 0);
727 drm_modeset_unlock_all(dev);
731 EXPORT_SYMBOL(drm_connector_init);
734 * drm_connector_cleanup - cleans up an initialised connector
735 * @connector: connector to cleanup
737 * Cleans up the connector but doesn't free the object.
739 void drm_connector_cleanup(struct drm_connector *connector)
741 struct drm_device *dev = connector->dev;
742 struct drm_display_mode *mode, *t;
744 list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
745 drm_mode_remove(connector, mode);
747 list_for_each_entry_safe(mode, t, &connector->modes, head)
748 drm_mode_remove(connector, mode);
750 list_for_each_entry_safe(mode, t, &connector->user_modes, head)
751 drm_mode_remove(connector, mode);
753 drm_mode_object_put(dev, &connector->base);
754 list_del(&connector->head);
755 dev->mode_config.num_connector--;
757 EXPORT_SYMBOL(drm_connector_cleanup);
759 void drm_connector_unplug_all(struct drm_device *dev)
761 struct drm_connector *connector;
763 /* taking the mode config mutex ends up in a clash with sysfs */
764 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
765 drm_sysfs_connector_remove(connector);
768 EXPORT_SYMBOL(drm_connector_unplug_all);
770 int drm_encoder_init(struct drm_device *dev,
771 struct drm_encoder *encoder,
772 const struct drm_encoder_funcs *funcs,
777 drm_modeset_lock_all(dev);
779 ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
784 encoder->encoder_type = encoder_type;
785 encoder->funcs = funcs;
787 list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
788 dev->mode_config.num_encoder++;
791 drm_modeset_unlock_all(dev);
795 EXPORT_SYMBOL(drm_encoder_init);
797 void drm_encoder_cleanup(struct drm_encoder *encoder)
799 struct drm_device *dev = encoder->dev;
800 drm_modeset_lock_all(dev);
801 drm_mode_object_put(dev, &encoder->base);
802 list_del(&encoder->head);
803 dev->mode_config.num_encoder--;
804 drm_modeset_unlock_all(dev);
806 EXPORT_SYMBOL(drm_encoder_cleanup);
808 int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
809 unsigned long possible_crtcs,
810 const struct drm_plane_funcs *funcs,
811 const uint32_t *formats, uint32_t format_count,
816 drm_modeset_lock_all(dev);
818 ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE);
822 plane->base.properties = &plane->properties;
824 plane->funcs = funcs;
825 plane->format_types = kmalloc(sizeof(uint32_t) * format_count,
827 if (!plane->format_types) {
828 DRM_DEBUG_KMS("out of memory when allocating plane\n");
829 drm_mode_object_put(dev, &plane->base);
834 memcpy(plane->format_types, formats, format_count * sizeof(uint32_t));
835 plane->format_count = format_count;
836 plane->possible_crtcs = possible_crtcs;
838 /* private planes are not exposed to userspace, but depending on
839 * display hardware, might be convenient to allow sharing programming
840 * for the scanout engine with the crtc implementation.
843 list_add_tail(&plane->head, &dev->mode_config.plane_list);
844 dev->mode_config.num_plane++;
846 INIT_LIST_HEAD(&plane->head);
850 drm_modeset_unlock_all(dev);
854 EXPORT_SYMBOL(drm_plane_init);
856 void drm_plane_cleanup(struct drm_plane *plane)
858 struct drm_device *dev = plane->dev;
860 drm_modeset_lock_all(dev);
861 kfree(plane->format_types);
862 drm_mode_object_put(dev, &plane->base);
863 /* if not added to a list, it must be a private plane */
864 if (!list_empty(&plane->head)) {
865 list_del(&plane->head);
866 dev->mode_config.num_plane--;
868 drm_modeset_unlock_all(dev);
870 EXPORT_SYMBOL(drm_plane_cleanup);
873 * drm_mode_create - create a new display mode
876 * Create a new drm_display_mode, give it an ID, and return it.
879 * Pointer to new mode on success, NULL on error.
881 struct drm_display_mode *drm_mode_create(struct drm_device *dev)
883 struct drm_display_mode *nmode;
885 nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
889 if (drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE)) {
896 EXPORT_SYMBOL(drm_mode_create);
899 * drm_mode_destroy - remove a mode
901 * @mode: mode to remove
903 * Free @mode's unique identifier, then free it.
905 void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
910 drm_mode_object_put(dev, &mode->base);
914 EXPORT_SYMBOL(drm_mode_destroy);
916 static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
918 struct drm_property *edid;
919 struct drm_property *dpms;
922 * Standard properties (apply to all connectors)
924 edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
925 DRM_MODE_PROP_IMMUTABLE,
927 dev->mode_config.edid_property = edid;
929 dpms = drm_property_create_enum(dev, 0,
930 "DPMS", drm_dpms_enum_list,
931 ARRAY_SIZE(drm_dpms_enum_list));
932 dev->mode_config.dpms_property = dpms;
938 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
941 * Called by a driver the first time a DVI-I connector is made.
943 int drm_mode_create_dvi_i_properties(struct drm_device *dev)
945 struct drm_property *dvi_i_selector;
946 struct drm_property *dvi_i_subconnector;
948 if (dev->mode_config.dvi_i_select_subconnector_property)
952 drm_property_create_enum(dev, 0,
953 "select subconnector",
954 drm_dvi_i_select_enum_list,
955 ARRAY_SIZE(drm_dvi_i_select_enum_list));
956 dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
958 dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
960 drm_dvi_i_subconnector_enum_list,
961 ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
962 dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
966 EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
969 * drm_create_tv_properties - create TV specific connector properties
971 * @num_modes: number of different TV formats (modes) supported
972 * @modes: array of pointers to strings containing name of each format
974 * Called by a driver's TV initialization routine, this function creates
975 * the TV specific connector properties for a given device. Caller is
976 * responsible for allocating a list of format names and passing them to
979 int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
982 struct drm_property *tv_selector;
983 struct drm_property *tv_subconnector;
986 if (dev->mode_config.tv_select_subconnector_property)
990 * Basic connector properties
992 tv_selector = drm_property_create_enum(dev, 0,
993 "select subconnector",
994 drm_tv_select_enum_list,
995 ARRAY_SIZE(drm_tv_select_enum_list));
996 dev->mode_config.tv_select_subconnector_property = tv_selector;
999 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
1001 drm_tv_subconnector_enum_list,
1002 ARRAY_SIZE(drm_tv_subconnector_enum_list));
1003 dev->mode_config.tv_subconnector_property = tv_subconnector;
1006 * Other, TV specific properties: margins & TV modes.
1008 dev->mode_config.tv_left_margin_property =
1009 drm_property_create_range(dev, 0, "left margin", 0, 100);
1011 dev->mode_config.tv_right_margin_property =
1012 drm_property_create_range(dev, 0, "right margin", 0, 100);
1014 dev->mode_config.tv_top_margin_property =
1015 drm_property_create_range(dev, 0, "top margin", 0, 100);
1017 dev->mode_config.tv_bottom_margin_property =
1018 drm_property_create_range(dev, 0, "bottom margin", 0, 100);
1020 dev->mode_config.tv_mode_property =
1021 drm_property_create(dev, DRM_MODE_PROP_ENUM,
1023 for (i = 0; i < num_modes; i++)
1024 drm_property_add_enum(dev->mode_config.tv_mode_property, i,
1027 dev->mode_config.tv_brightness_property =
1028 drm_property_create_range(dev, 0, "brightness", 0, 100);
1030 dev->mode_config.tv_contrast_property =
1031 drm_property_create_range(dev, 0, "contrast", 0, 100);
1033 dev->mode_config.tv_flicker_reduction_property =
1034 drm_property_create_range(dev, 0, "flicker reduction", 0, 100);
1036 dev->mode_config.tv_overscan_property =
1037 drm_property_create_range(dev, 0, "overscan", 0, 100);
1039 dev->mode_config.tv_saturation_property =
1040 drm_property_create_range(dev, 0, "saturation", 0, 100);
1042 dev->mode_config.tv_hue_property =
1043 drm_property_create_range(dev, 0, "hue", 0, 100);
1047 EXPORT_SYMBOL(drm_mode_create_tv_properties);
1050 * drm_mode_create_scaling_mode_property - create scaling mode property
1053 * Called by a driver the first time it's needed, must be attached to desired
1056 int drm_mode_create_scaling_mode_property(struct drm_device *dev)
1058 struct drm_property *scaling_mode;
1060 if (dev->mode_config.scaling_mode_property)
1064 drm_property_create_enum(dev, 0, "scaling mode",
1065 drm_scaling_mode_enum_list,
1066 ARRAY_SIZE(drm_scaling_mode_enum_list));
1068 dev->mode_config.scaling_mode_property = scaling_mode;
1072 EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
1075 * drm_mode_create_dithering_property - create dithering property
1078 * Called by a driver the first time it's needed, must be attached to desired
1081 int drm_mode_create_dithering_property(struct drm_device *dev)
1083 struct drm_property *dithering_mode;
1085 if (dev->mode_config.dithering_mode_property)
1089 drm_property_create_enum(dev, 0, "dithering",
1090 drm_dithering_mode_enum_list,
1091 ARRAY_SIZE(drm_dithering_mode_enum_list));
1092 dev->mode_config.dithering_mode_property = dithering_mode;
1096 EXPORT_SYMBOL(drm_mode_create_dithering_property);
1099 * drm_mode_create_dirty_property - create dirty property
1102 * Called by a driver the first time it's needed, must be attached to desired
1105 int drm_mode_create_dirty_info_property(struct drm_device *dev)
1107 struct drm_property *dirty_info;
1109 if (dev->mode_config.dirty_info_property)
1113 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
1115 drm_dirty_info_enum_list,
1116 ARRAY_SIZE(drm_dirty_info_enum_list));
1117 dev->mode_config.dirty_info_property = dirty_info;
1121 EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
1124 * drm_mode_config_init - initialize DRM mode_configuration structure
1127 * Initialize @dev's mode_config structure, used for tracking the graphics
1128 * configuration of @dev.
1130 * Since this initializes the modeset locks, no locking is possible. Which is no
1131 * problem, since this should happen single threaded at init time. It is the
1132 * driver's problem to ensure this guarantee.
1135 void drm_mode_config_init(struct drm_device *dev)
1137 mutex_init(&dev->mode_config.mutex);
1138 mutex_init(&dev->mode_config.idr_mutex);
1139 mutex_init(&dev->mode_config.fb_lock);
1140 INIT_LIST_HEAD(&dev->mode_config.fb_list);
1141 INIT_LIST_HEAD(&dev->mode_config.crtc_list);
1142 INIT_LIST_HEAD(&dev->mode_config.connector_list);
1143 INIT_LIST_HEAD(&dev->mode_config.encoder_list);
1144 INIT_LIST_HEAD(&dev->mode_config.property_list);
1145 INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
1146 INIT_LIST_HEAD(&dev->mode_config.plane_list);
1147 idr_init(&dev->mode_config.crtc_idr);
1149 drm_modeset_lock_all(dev);
1150 drm_mode_create_standard_connector_properties(dev);
1151 drm_modeset_unlock_all(dev);
1153 /* Just to be sure */
1154 dev->mode_config.num_fb = 0;
1155 dev->mode_config.num_connector = 0;
1156 dev->mode_config.num_crtc = 0;
1157 dev->mode_config.num_encoder = 0;
1159 EXPORT_SYMBOL(drm_mode_config_init);
1161 int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
1163 uint32_t total_objects = 0;
1165 total_objects += dev->mode_config.num_crtc;
1166 total_objects += dev->mode_config.num_connector;
1167 total_objects += dev->mode_config.num_encoder;
1169 group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
1170 if (!group->id_list)
1173 group->num_crtcs = 0;
1174 group->num_connectors = 0;
1175 group->num_encoders = 0;
1179 int drm_mode_group_init_legacy_group(struct drm_device *dev,
1180 struct drm_mode_group *group)
1182 struct drm_crtc *crtc;
1183 struct drm_encoder *encoder;
1184 struct drm_connector *connector;
1187 if ((ret = drm_mode_group_init(dev, group)))
1190 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
1191 group->id_list[group->num_crtcs++] = crtc->base.id;
1193 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
1194 group->id_list[group->num_crtcs + group->num_encoders++] =
1197 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
1198 group->id_list[group->num_crtcs + group->num_encoders +
1199 group->num_connectors++] = connector->base.id;
1203 EXPORT_SYMBOL(drm_mode_group_init_legacy_group);
1206 * drm_mode_config_cleanup - free up DRM mode_config info
1209 * Free up all the connectors and CRTCs associated with this DRM device, then
1210 * free up the framebuffers and associated buffer objects.
1212 * Note that since this /should/ happen single-threaded at driver/device
1213 * teardown time, no locking is required. It's the driver's job to ensure that
1214 * this guarantee actually holds true.
1216 * FIXME: cleanup any dangling user buffer objects too
1218 void drm_mode_config_cleanup(struct drm_device *dev)
1220 struct drm_connector *connector, *ot;
1221 struct drm_crtc *crtc, *ct;
1222 struct drm_encoder *encoder, *enct;
1223 struct drm_framebuffer *fb, *fbt;
1224 struct drm_property *property, *pt;
1225 struct drm_plane *plane, *plt;
1227 list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
1229 encoder->funcs->destroy(encoder);
1232 list_for_each_entry_safe(connector, ot,
1233 &dev->mode_config.connector_list, head) {
1234 connector->funcs->destroy(connector);
1237 list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
1239 drm_property_destroy(dev, property);
1243 * Single-threaded teardown context, so it's not required to grab the
1244 * fb_lock to protect against concurrent fb_list access. Contrary, it
1245 * would actually deadlock with the drm_framebuffer_cleanup function.
1247 * Also, if there are any framebuffers left, that's a driver leak now,
1248 * so politely WARN about this.
1250 WARN_ON(!list_empty(&dev->mode_config.fb_list));
1251 list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
1252 drm_framebuffer_remove(fb);
1255 list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
1257 plane->funcs->destroy(plane);
1260 list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
1261 crtc->funcs->destroy(crtc);
1264 idr_destroy(&dev->mode_config.crtc_idr);
1266 EXPORT_SYMBOL(drm_mode_config_cleanup);
1269 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
1270 * @out: drm_mode_modeinfo struct to return to the user
1271 * @in: drm_display_mode to use
1273 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
1276 static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
1277 const struct drm_display_mode *in)
1279 WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX ||
1280 in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX ||
1281 in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX ||
1282 in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX ||
1283 in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX,
1284 "timing values too large for mode info\n");
1286 out->clock = in->clock;
1287 out->hdisplay = in->hdisplay;
1288 out->hsync_start = in->hsync_start;
1289 out->hsync_end = in->hsync_end;
1290 out->htotal = in->htotal;
1291 out->hskew = in->hskew;
1292 out->vdisplay = in->vdisplay;
1293 out->vsync_start = in->vsync_start;
1294 out->vsync_end = in->vsync_end;
1295 out->vtotal = in->vtotal;
1296 out->vscan = in->vscan;
1297 out->vrefresh = in->vrefresh;
1298 out->flags = in->flags;
1299 out->type = in->type;
1300 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1301 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1305 * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
1306 * @out: drm_display_mode to return to the user
1307 * @in: drm_mode_modeinfo to use
1309 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
1313 * Zero on success, errno on failure.
1315 static int drm_crtc_convert_umode(struct drm_display_mode *out,
1316 const struct drm_mode_modeinfo *in)
1318 if (in->clock > INT_MAX || in->vrefresh > INT_MAX)
1321 out->clock = in->clock;
1322 out->hdisplay = in->hdisplay;
1323 out->hsync_start = in->hsync_start;
1324 out->hsync_end = in->hsync_end;
1325 out->htotal = in->htotal;
1326 out->hskew = in->hskew;
1327 out->vdisplay = in->vdisplay;
1328 out->vsync_start = in->vsync_start;
1329 out->vsync_end = in->vsync_end;
1330 out->vtotal = in->vtotal;
1331 out->vscan = in->vscan;
1332 out->vrefresh = in->vrefresh;
1333 out->flags = in->flags;
1334 out->type = in->type;
1335 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1336 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1342 * drm_mode_getresources - get graphics configuration
1343 * @dev: drm device for the ioctl
1344 * @data: data pointer for the ioctl
1345 * @file_priv: drm file for the ioctl call
1347 * Construct a set of configuration description structures and return
1348 * them to the user, including CRTC, connector and framebuffer configuration.
1350 * Called by the user via ioctl.
1353 * Zero on success, errno on failure.
1355 int drm_mode_getresources(struct drm_device *dev, void *data,
1356 struct drm_file *file_priv)
1358 struct drm_mode_card_res *card_res = data;
1359 struct list_head *lh;
1360 struct drm_framebuffer *fb;
1361 struct drm_connector *connector;
1362 struct drm_crtc *crtc;
1363 struct drm_encoder *encoder;
1365 int connector_count = 0;
1368 int encoder_count = 0;
1370 uint32_t __user *fb_id;
1371 uint32_t __user *crtc_id;
1372 uint32_t __user *connector_id;
1373 uint32_t __user *encoder_id;
1374 struct drm_mode_group *mode_group;
1376 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1380 mutex_lock(&file_priv->fbs_lock);
1382 * For the non-control nodes we need to limit the list of resources
1383 * by IDs in the group list for this node
1385 list_for_each(lh, &file_priv->fbs)
1388 /* handle this in 4 parts */
1390 if (card_res->count_fbs >= fb_count) {
1392 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
1393 list_for_each_entry(fb, &file_priv->fbs, filp_head) {
1394 if (put_user(fb->base.id, fb_id + copied)) {
1395 mutex_unlock(&file_priv->fbs_lock);
1401 card_res->count_fbs = fb_count;
1402 mutex_unlock(&file_priv->fbs_lock);
1404 drm_modeset_lock_all(dev);
1405 mode_group = &file_priv->master->minor->mode_group;
1406 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1408 list_for_each(lh, &dev->mode_config.crtc_list)
1411 list_for_each(lh, &dev->mode_config.connector_list)
1414 list_for_each(lh, &dev->mode_config.encoder_list)
1418 crtc_count = mode_group->num_crtcs;
1419 connector_count = mode_group->num_connectors;
1420 encoder_count = mode_group->num_encoders;
1423 card_res->max_height = dev->mode_config.max_height;
1424 card_res->min_height = dev->mode_config.min_height;
1425 card_res->max_width = dev->mode_config.max_width;
1426 card_res->min_width = dev->mode_config.min_width;
1429 if (card_res->count_crtcs >= crtc_count) {
1431 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
1432 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1433 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1435 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
1436 if (put_user(crtc->base.id, crtc_id + copied)) {
1443 for (i = 0; i < mode_group->num_crtcs; i++) {
1444 if (put_user(mode_group->id_list[i],
1445 crtc_id + copied)) {
1453 card_res->count_crtcs = crtc_count;
1456 if (card_res->count_encoders >= encoder_count) {
1458 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
1459 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1460 list_for_each_entry(encoder,
1461 &dev->mode_config.encoder_list,
1463 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id,
1464 drm_get_encoder_name(encoder));
1465 if (put_user(encoder->base.id, encoder_id +
1473 for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
1474 if (put_user(mode_group->id_list[i],
1475 encoder_id + copied)) {
1484 card_res->count_encoders = encoder_count;
1487 if (card_res->count_connectors >= connector_count) {
1489 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
1490 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1491 list_for_each_entry(connector,
1492 &dev->mode_config.connector_list,
1494 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1496 drm_get_connector_name(connector));
1497 if (put_user(connector->base.id,
1498 connector_id + copied)) {
1505 int start = mode_group->num_crtcs +
1506 mode_group->num_encoders;
1507 for (i = start; i < start + mode_group->num_connectors; i++) {
1508 if (put_user(mode_group->id_list[i],
1509 connector_id + copied)) {
1517 card_res->count_connectors = connector_count;
1519 DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs,
1520 card_res->count_connectors, card_res->count_encoders);
1523 drm_modeset_unlock_all(dev);
1528 * drm_mode_getcrtc - get CRTC configuration
1529 * @dev: drm device for the ioctl
1530 * @data: data pointer for the ioctl
1531 * @file_priv: drm file for the ioctl call
1533 * Construct a CRTC configuration structure to return to the user.
1535 * Called by the user via ioctl.
1538 * Zero on success, errno on failure.
1540 int drm_mode_getcrtc(struct drm_device *dev,
1541 void *data, struct drm_file *file_priv)
1543 struct drm_mode_crtc *crtc_resp = data;
1544 struct drm_crtc *crtc;
1545 struct drm_mode_object *obj;
1548 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1551 drm_modeset_lock_all(dev);
1553 obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
1554 DRM_MODE_OBJECT_CRTC);
1559 crtc = obj_to_crtc(obj);
1561 crtc_resp->x = crtc->x;
1562 crtc_resp->y = crtc->y;
1563 crtc_resp->gamma_size = crtc->gamma_size;
1565 crtc_resp->fb_id = crtc->fb->base.id;
1567 crtc_resp->fb_id = 0;
1569 if (crtc->enabled) {
1571 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1572 crtc_resp->mode_valid = 1;
1575 crtc_resp->mode_valid = 0;
1579 drm_modeset_unlock_all(dev);
1584 * drm_mode_getconnector - get connector configuration
1585 * @dev: drm device for the ioctl
1586 * @data: data pointer for the ioctl
1587 * @file_priv: drm file for the ioctl call
1589 * Construct a connector configuration structure to return to the user.
1591 * Called by the user via ioctl.
1594 * Zero on success, errno on failure.
1596 int drm_mode_getconnector(struct drm_device *dev, void *data,
1597 struct drm_file *file_priv)
1599 struct drm_mode_get_connector *out_resp = data;
1600 struct drm_mode_object *obj;
1601 struct drm_connector *connector;
1602 struct drm_display_mode *mode;
1604 int props_count = 0;
1605 int encoders_count = 0;
1609 struct drm_mode_modeinfo u_mode;
1610 struct drm_mode_modeinfo __user *mode_ptr;
1611 uint32_t __user *prop_ptr;
1612 uint64_t __user *prop_values;
1613 uint32_t __user *encoder_ptr;
1615 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1618 memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1620 DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);
1622 mutex_lock(&dev->mode_config.mutex);
1624 obj = drm_mode_object_find(dev, out_resp->connector_id,
1625 DRM_MODE_OBJECT_CONNECTOR);
1630 connector = obj_to_connector(obj);
1632 props_count = connector->properties.count;
1634 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1635 if (connector->encoder_ids[i] != 0) {
1640 if (out_resp->count_modes == 0) {
1641 connector->funcs->fill_modes(connector,
1642 dev->mode_config.max_width,
1643 dev->mode_config.max_height);
1646 /* delayed so we get modes regardless of pre-fill_modes state */
1647 list_for_each_entry(mode, &connector->modes, head)
1650 out_resp->connector_id = connector->base.id;
1651 out_resp->connector_type = connector->connector_type;
1652 out_resp->connector_type_id = connector->connector_type_id;
1653 out_resp->mm_width = connector->display_info.width_mm;
1654 out_resp->mm_height = connector->display_info.height_mm;
1655 out_resp->subpixel = connector->display_info.subpixel_order;
1656 out_resp->connection = connector->status;
1657 if (connector->encoder)
1658 out_resp->encoder_id = connector->encoder->base.id;
1660 out_resp->encoder_id = 0;
1663 * This ioctl is called twice, once to determine how much space is
1664 * needed, and the 2nd time to fill it.
1666 if ((out_resp->count_modes >= mode_count) && mode_count) {
1668 mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr;
1669 list_for_each_entry(mode, &connector->modes, head) {
1670 drm_crtc_convert_to_umode(&u_mode, mode);
1671 if (copy_to_user(mode_ptr + copied,
1672 &u_mode, sizeof(u_mode))) {
1679 out_resp->count_modes = mode_count;
1681 if ((out_resp->count_props >= props_count) && props_count) {
1683 prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr);
1684 prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr);
1685 for (i = 0; i < connector->properties.count; i++) {
1686 if (put_user(connector->properties.ids[i],
1687 prop_ptr + copied)) {
1692 if (put_user(connector->properties.values[i],
1693 prop_values + copied)) {
1700 out_resp->count_props = props_count;
1702 if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
1704 encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr);
1705 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1706 if (connector->encoder_ids[i] != 0) {
1707 if (put_user(connector->encoder_ids[i],
1708 encoder_ptr + copied)) {
1716 out_resp->count_encoders = encoders_count;
1719 mutex_unlock(&dev->mode_config.mutex);
1724 int drm_mode_getencoder(struct drm_device *dev, void *data,
1725 struct drm_file *file_priv)
1727 struct drm_mode_get_encoder *enc_resp = data;
1728 struct drm_mode_object *obj;
1729 struct drm_encoder *encoder;
1732 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1735 drm_modeset_lock_all(dev);
1736 obj = drm_mode_object_find(dev, enc_resp->encoder_id,
1737 DRM_MODE_OBJECT_ENCODER);
1742 encoder = obj_to_encoder(obj);
1745 enc_resp->crtc_id = encoder->crtc->base.id;
1747 enc_resp->crtc_id = 0;
1748 enc_resp->encoder_type = encoder->encoder_type;
1749 enc_resp->encoder_id = encoder->base.id;
1750 enc_resp->possible_crtcs = encoder->possible_crtcs;
1751 enc_resp->possible_clones = encoder->possible_clones;
1754 drm_modeset_unlock_all(dev);
1759 * drm_mode_getplane_res - get plane info
1762 * @file_priv: DRM file info
1764 * Return an plane count and set of IDs.
1766 int drm_mode_getplane_res(struct drm_device *dev, void *data,
1767 struct drm_file *file_priv)
1769 struct drm_mode_get_plane_res *plane_resp = data;
1770 struct drm_mode_config *config;
1771 struct drm_plane *plane;
1772 uint32_t __user *plane_ptr;
1773 int copied = 0, ret = 0;
1775 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1778 drm_modeset_lock_all(dev);
1779 config = &dev->mode_config;
1782 * This ioctl is called twice, once to determine how much space is
1783 * needed, and the 2nd time to fill it.
1785 if (config->num_plane &&
1786 (plane_resp->count_planes >= config->num_plane)) {
1787 plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr;
1789 list_for_each_entry(plane, &config->plane_list, head) {
1790 if (put_user(plane->base.id, plane_ptr + copied)) {
1797 plane_resp->count_planes = config->num_plane;
1800 drm_modeset_unlock_all(dev);
1805 * drm_mode_getplane - get plane info
1808 * @file_priv: DRM file info
1810 * Return plane info, including formats supported, gamma size, any
1813 int drm_mode_getplane(struct drm_device *dev, void *data,
1814 struct drm_file *file_priv)
1816 struct drm_mode_get_plane *plane_resp = data;
1817 struct drm_mode_object *obj;
1818 struct drm_plane *plane;
1819 uint32_t __user *format_ptr;
1822 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1825 drm_modeset_lock_all(dev);
1826 obj = drm_mode_object_find(dev, plane_resp->plane_id,
1827 DRM_MODE_OBJECT_PLANE);
1832 plane = obj_to_plane(obj);
1835 plane_resp->crtc_id = plane->crtc->base.id;
1837 plane_resp->crtc_id = 0;
1840 plane_resp->fb_id = plane->fb->base.id;
1842 plane_resp->fb_id = 0;
1844 plane_resp->plane_id = plane->base.id;
1845 plane_resp->possible_crtcs = plane->possible_crtcs;
1846 plane_resp->gamma_size = plane->gamma_size;
1849 * This ioctl is called twice, once to determine how much space is
1850 * needed, and the 2nd time to fill it.
1852 if (plane->format_count &&
1853 (plane_resp->count_format_types >= plane->format_count)) {
1854 format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr;
1855 if (copy_to_user(format_ptr,
1856 plane->format_types,
1857 sizeof(uint32_t) * plane->format_count)) {
1862 plane_resp->count_format_types = plane->format_count;
1865 drm_modeset_unlock_all(dev);
1870 * drm_mode_setplane - set up or tear down an plane
1872 * @data: ioctl data*
1873 * @file_priv: DRM file info
1875 * Set plane info, including placement, fb, scaling, and other factors.
1876 * Or pass a NULL fb to disable.
1878 int drm_mode_setplane(struct drm_device *dev, void *data,
1879 struct drm_file *file_priv)
1881 struct drm_mode_set_plane *plane_req = data;
1882 struct drm_mode_object *obj;
1883 struct drm_plane *plane;
1884 struct drm_crtc *crtc;
1885 struct drm_framebuffer *fb = NULL, *old_fb = NULL;
1887 unsigned int fb_width, fb_height;
1890 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1894 * First, find the plane, crtc, and fb objects. If not available,
1895 * we don't bother to call the driver.
1897 obj = drm_mode_object_find(dev, plane_req->plane_id,
1898 DRM_MODE_OBJECT_PLANE);
1900 DRM_DEBUG_KMS("Unknown plane ID %d\n",
1901 plane_req->plane_id);
1904 plane = obj_to_plane(obj);
1906 /* No fb means shut it down */
1907 if (!plane_req->fb_id) {
1908 drm_modeset_lock_all(dev);
1910 plane->funcs->disable_plane(plane);
1913 drm_modeset_unlock_all(dev);
1917 obj = drm_mode_object_find(dev, plane_req->crtc_id,
1918 DRM_MODE_OBJECT_CRTC);
1920 DRM_DEBUG_KMS("Unknown crtc ID %d\n",
1921 plane_req->crtc_id);
1925 crtc = obj_to_crtc(obj);
1927 fb = drm_framebuffer_lookup(dev, plane_req->fb_id);
1929 DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
1935 /* Check whether this plane supports the fb pixel format. */
1936 for (i = 0; i < plane->format_count; i++)
1937 if (fb->pixel_format == plane->format_types[i])
1939 if (i == plane->format_count) {
1940 DRM_DEBUG_KMS("Invalid pixel format 0x%08x\n", fb->pixel_format);
1945 fb_width = fb->width << 16;
1946 fb_height = fb->height << 16;
1948 /* Make sure source coordinates are inside the fb. */
1949 if (plane_req->src_w > fb_width ||
1950 plane_req->src_x > fb_width - plane_req->src_w ||
1951 plane_req->src_h > fb_height ||
1952 plane_req->src_y > fb_height - plane_req->src_h) {
1953 DRM_DEBUG_KMS("Invalid source coordinates "
1954 "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
1955 plane_req->src_w >> 16,
1956 ((plane_req->src_w & 0xffff) * 15625) >> 10,
1957 plane_req->src_h >> 16,
1958 ((plane_req->src_h & 0xffff) * 15625) >> 10,
1959 plane_req->src_x >> 16,
1960 ((plane_req->src_x & 0xffff) * 15625) >> 10,
1961 plane_req->src_y >> 16,
1962 ((plane_req->src_y & 0xffff) * 15625) >> 10);
1967 /* Give drivers some help against integer overflows */
1968 if (plane_req->crtc_w > INT_MAX ||
1969 plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w ||
1970 plane_req->crtc_h > INT_MAX ||
1971 plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) {
1972 DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
1973 plane_req->crtc_w, plane_req->crtc_h,
1974 plane_req->crtc_x, plane_req->crtc_y);
1979 drm_modeset_lock_all(dev);
1980 ret = plane->funcs->update_plane(plane, crtc, fb,
1981 plane_req->crtc_x, plane_req->crtc_y,
1982 plane_req->crtc_w, plane_req->crtc_h,
1983 plane_req->src_x, plane_req->src_y,
1984 plane_req->src_w, plane_req->src_h);
1991 drm_modeset_unlock_all(dev);
1995 drm_framebuffer_unreference(fb);
1997 drm_framebuffer_unreference(old_fb);
2003 * drm_mode_set_config_internal - helper to call ->set_config
2004 * @set: modeset config to set
2006 * This is a little helper to wrap internal calls to the ->set_config driver
2007 * interface. The only thing it adds is correct refcounting dance.
2009 int drm_mode_set_config_internal(struct drm_mode_set *set)
2011 struct drm_crtc *crtc = set->crtc;
2012 struct drm_framebuffer *fb, *old_fb;
2018 ret = crtc->funcs->set_config(set);
2021 drm_framebuffer_unreference(old_fb);
2023 drm_framebuffer_reference(fb);
2028 EXPORT_SYMBOL(drm_mode_set_config_internal);
2031 * drm_mode_setcrtc - set CRTC configuration
2032 * @dev: drm device for the ioctl
2033 * @data: data pointer for the ioctl
2034 * @file_priv: drm file for the ioctl call
2036 * Build a new CRTC configuration based on user request.
2038 * Called by the user via ioctl.
2041 * Zero on success, errno on failure.
2043 int drm_mode_setcrtc(struct drm_device *dev, void *data,
2044 struct drm_file *file_priv)
2046 struct drm_mode_config *config = &dev->mode_config;
2047 struct drm_mode_crtc *crtc_req = data;
2048 struct drm_mode_object *obj;
2049 struct drm_crtc *crtc;
2050 struct drm_connector **connector_set = NULL, *connector;
2051 struct drm_framebuffer *fb = NULL;
2052 struct drm_display_mode *mode = NULL;
2053 struct drm_mode_set set;
2054 uint32_t __user *set_connectors_ptr;
2058 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2061 /* For some reason crtc x/y offsets are signed internally. */
2062 if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX)
2065 drm_modeset_lock_all(dev);
2066 obj = drm_mode_object_find(dev, crtc_req->crtc_id,
2067 DRM_MODE_OBJECT_CRTC);
2069 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
2073 crtc = obj_to_crtc(obj);
2074 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
2076 if (crtc_req->mode_valid) {
2077 int hdisplay, vdisplay;
2078 /* If we have a mode we need a framebuffer. */
2079 /* If we pass -1, set the mode with the currently bound fb */
2080 if (crtc_req->fb_id == -1) {
2082 DRM_DEBUG_KMS("CRTC doesn't have current FB\n");
2087 /* Make refcounting symmetric with the lookup path. */
2088 drm_framebuffer_reference(fb);
2090 fb = drm_framebuffer_lookup(dev, crtc_req->fb_id);
2092 DRM_DEBUG_KMS("Unknown FB ID%d\n",
2099 mode = drm_mode_create(dev);
2105 ret = drm_crtc_convert_umode(mode, &crtc_req->mode);
2107 DRM_DEBUG_KMS("Invalid mode\n");
2111 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
2113 hdisplay = mode->hdisplay;
2114 vdisplay = mode->vdisplay;
2116 if (crtc->invert_dimensions)
2117 swap(hdisplay, vdisplay);
2119 if (hdisplay > fb->width ||
2120 vdisplay > fb->height ||
2121 crtc_req->x > fb->width - hdisplay ||
2122 crtc_req->y > fb->height - vdisplay) {
2123 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
2124 fb->width, fb->height,
2125 hdisplay, vdisplay, crtc_req->x, crtc_req->y,
2126 crtc->invert_dimensions ? " (inverted)" : "");
2132 if (crtc_req->count_connectors == 0 && mode) {
2133 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
2138 if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
2139 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
2140 crtc_req->count_connectors);
2145 if (crtc_req->count_connectors > 0) {
2148 /* Avoid unbounded kernel memory allocation */
2149 if (crtc_req->count_connectors > config->num_connector) {
2154 connector_set = kmalloc(crtc_req->count_connectors *
2155 sizeof(struct drm_connector *),
2157 if (!connector_set) {
2162 for (i = 0; i < crtc_req->count_connectors; i++) {
2163 set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr;
2164 if (get_user(out_id, &set_connectors_ptr[i])) {
2169 obj = drm_mode_object_find(dev, out_id,
2170 DRM_MODE_OBJECT_CONNECTOR);
2172 DRM_DEBUG_KMS("Connector id %d unknown\n",
2177 connector = obj_to_connector(obj);
2178 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
2180 drm_get_connector_name(connector));
2182 connector_set[i] = connector;
2187 set.x = crtc_req->x;
2188 set.y = crtc_req->y;
2190 set.connectors = connector_set;
2191 set.num_connectors = crtc_req->count_connectors;
2193 ret = drm_mode_set_config_internal(&set);
2197 drm_framebuffer_unreference(fb);
2199 kfree(connector_set);
2200 drm_mode_destroy(dev, mode);
2201 drm_modeset_unlock_all(dev);
2205 int drm_mode_cursor_ioctl(struct drm_device *dev,
2206 void *data, struct drm_file *file_priv)
2208 struct drm_mode_cursor *req = data;
2209 struct drm_mode_object *obj;
2210 struct drm_crtc *crtc;
2213 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2216 if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags))
2219 obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
2221 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
2224 crtc = obj_to_crtc(obj);
2226 mutex_lock(&crtc->mutex);
2227 if (req->flags & DRM_MODE_CURSOR_BO) {
2228 if (!crtc->funcs->cursor_set) {
2232 /* Turns off the cursor if handle is 0 */
2233 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
2234 req->width, req->height);
2237 if (req->flags & DRM_MODE_CURSOR_MOVE) {
2238 if (crtc->funcs->cursor_move) {
2239 ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
2246 mutex_unlock(&crtc->mutex);
2251 /* Original addfb only supported RGB formats, so figure out which one */
2252 uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth)
2258 fmt = DRM_FORMAT_C8;
2262 fmt = DRM_FORMAT_XRGB1555;
2264 fmt = DRM_FORMAT_RGB565;
2267 fmt = DRM_FORMAT_RGB888;
2271 fmt = DRM_FORMAT_XRGB8888;
2272 else if (depth == 30)
2273 fmt = DRM_FORMAT_XRGB2101010;
2275 fmt = DRM_FORMAT_ARGB8888;
2278 DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n");
2279 fmt = DRM_FORMAT_XRGB8888;
2285 EXPORT_SYMBOL(drm_mode_legacy_fb_format);
2288 * drm_mode_addfb - add an FB to the graphics configuration
2289 * @dev: drm device for the ioctl
2290 * @data: data pointer for the ioctl
2291 * @file_priv: drm file for the ioctl call
2293 * Add a new FB to the specified CRTC, given a user request.
2295 * Called by the user via ioctl.
2298 * Zero on success, errno on failure.
2300 int drm_mode_addfb(struct drm_device *dev,
2301 void *data, struct drm_file *file_priv)
2303 struct drm_mode_fb_cmd *or = data;
2304 struct drm_mode_fb_cmd2 r = {};
2305 struct drm_mode_config *config = &dev->mode_config;
2306 struct drm_framebuffer *fb;
2309 /* Use new struct with format internally */
2310 r.fb_id = or->fb_id;
2311 r.width = or->width;
2312 r.height = or->height;
2313 r.pitches[0] = or->pitch;
2314 r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth);
2315 r.handles[0] = or->handle;
2317 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2320 if ((config->min_width > r.width) || (r.width > config->max_width))
2323 if ((config->min_height > r.height) || (r.height > config->max_height))
2326 fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r);
2328 DRM_DEBUG_KMS("could not create framebuffer\n");
2332 mutex_lock(&file_priv->fbs_lock);
2333 or->fb_id = fb->base.id;
2334 list_add(&fb->filp_head, &file_priv->fbs);
2335 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
2336 mutex_unlock(&file_priv->fbs_lock);
2341 static int format_check(const struct drm_mode_fb_cmd2 *r)
2343 uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN;
2347 case DRM_FORMAT_RGB332:
2348 case DRM_FORMAT_BGR233:
2349 case DRM_FORMAT_XRGB4444:
2350 case DRM_FORMAT_XBGR4444:
2351 case DRM_FORMAT_RGBX4444:
2352 case DRM_FORMAT_BGRX4444:
2353 case DRM_FORMAT_ARGB4444:
2354 case DRM_FORMAT_ABGR4444:
2355 case DRM_FORMAT_RGBA4444:
2356 case DRM_FORMAT_BGRA4444:
2357 case DRM_FORMAT_XRGB1555:
2358 case DRM_FORMAT_XBGR1555:
2359 case DRM_FORMAT_RGBX5551:
2360 case DRM_FORMAT_BGRX5551:
2361 case DRM_FORMAT_ARGB1555:
2362 case DRM_FORMAT_ABGR1555:
2363 case DRM_FORMAT_RGBA5551:
2364 case DRM_FORMAT_BGRA5551:
2365 case DRM_FORMAT_RGB565:
2366 case DRM_FORMAT_BGR565:
2367 case DRM_FORMAT_RGB888:
2368 case DRM_FORMAT_BGR888:
2369 case DRM_FORMAT_XRGB8888:
2370 case DRM_FORMAT_XBGR8888:
2371 case DRM_FORMAT_RGBX8888:
2372 case DRM_FORMAT_BGRX8888:
2373 case DRM_FORMAT_ARGB8888:
2374 case DRM_FORMAT_ABGR8888:
2375 case DRM_FORMAT_RGBA8888:
2376 case DRM_FORMAT_BGRA8888:
2377 case DRM_FORMAT_XRGB2101010:
2378 case DRM_FORMAT_XBGR2101010:
2379 case DRM_FORMAT_RGBX1010102:
2380 case DRM_FORMAT_BGRX1010102:
2381 case DRM_FORMAT_ARGB2101010:
2382 case DRM_FORMAT_ABGR2101010:
2383 case DRM_FORMAT_RGBA1010102:
2384 case DRM_FORMAT_BGRA1010102:
2385 case DRM_FORMAT_YUYV:
2386 case DRM_FORMAT_YVYU:
2387 case DRM_FORMAT_UYVY:
2388 case DRM_FORMAT_VYUY:
2389 case DRM_FORMAT_AYUV:
2390 case DRM_FORMAT_NV12:
2391 case DRM_FORMAT_NV21:
2392 case DRM_FORMAT_NV16:
2393 case DRM_FORMAT_NV61:
2394 case DRM_FORMAT_NV24:
2395 case DRM_FORMAT_NV42:
2396 case DRM_FORMAT_YUV410:
2397 case DRM_FORMAT_YVU410:
2398 case DRM_FORMAT_YUV411:
2399 case DRM_FORMAT_YVU411:
2400 case DRM_FORMAT_YUV420:
2401 case DRM_FORMAT_YVU420:
2402 case DRM_FORMAT_YUV422:
2403 case DRM_FORMAT_YVU422:
2404 case DRM_FORMAT_YUV444:
2405 case DRM_FORMAT_YVU444:
2412 static int framebuffer_check(const struct drm_mode_fb_cmd2 *r)
2414 int ret, hsub, vsub, num_planes, i;
2416 ret = format_check(r);
2418 DRM_DEBUG_KMS("bad framebuffer format 0x%08x\n", r->pixel_format);
2422 hsub = drm_format_horz_chroma_subsampling(r->pixel_format);
2423 vsub = drm_format_vert_chroma_subsampling(r->pixel_format);
2424 num_planes = drm_format_num_planes(r->pixel_format);
2426 if (r->width == 0 || r->width % hsub) {
2427 DRM_DEBUG_KMS("bad framebuffer width %u\n", r->height);
2431 if (r->height == 0 || r->height % vsub) {
2432 DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height);
2436 for (i = 0; i < num_planes; i++) {
2437 unsigned int width = r->width / (i != 0 ? hsub : 1);
2438 unsigned int height = r->height / (i != 0 ? vsub : 1);
2439 unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i);
2441 if (!r->handles[i]) {
2442 DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i);
2446 if ((uint64_t) width * cpp > UINT_MAX)
2449 if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX)
2452 if (r->pitches[i] < width * cpp) {
2453 DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i);
2462 * drm_mode_addfb2 - add an FB to the graphics configuration
2463 * @dev: drm device for the ioctl
2464 * @data: data pointer for the ioctl
2465 * @file_priv: drm file for the ioctl call
2467 * Add a new FB to the specified CRTC, given a user request with format.
2469 * Called by the user via ioctl.
2472 * Zero on success, errno on failure.
2474 int drm_mode_addfb2(struct drm_device *dev,
2475 void *data, struct drm_file *file_priv)
2477 struct drm_mode_fb_cmd2 *r = data;
2478 struct drm_mode_config *config = &dev->mode_config;
2479 struct drm_framebuffer *fb;
2482 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2485 if (r->flags & ~DRM_MODE_FB_INTERLACED) {
2486 DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags);
2490 if ((config->min_width > r->width) || (r->width > config->max_width)) {
2491 DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n",
2492 r->width, config->min_width, config->max_width);
2495 if ((config->min_height > r->height) || (r->height > config->max_height)) {
2496 DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n",
2497 r->height, config->min_height, config->max_height);
2501 ret = framebuffer_check(r);
2505 fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
2507 DRM_DEBUG_KMS("could not create framebuffer\n");
2511 mutex_lock(&file_priv->fbs_lock);
2512 r->fb_id = fb->base.id;
2513 list_add(&fb->filp_head, &file_priv->fbs);
2514 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
2515 mutex_unlock(&file_priv->fbs_lock);
2522 * drm_mode_rmfb - remove an FB from the configuration
2523 * @dev: drm device for the ioctl
2524 * @data: data pointer for the ioctl
2525 * @file_priv: drm file for the ioctl call
2527 * Remove the FB specified by the user.
2529 * Called by the user via ioctl.
2532 * Zero on success, errno on failure.
2534 int drm_mode_rmfb(struct drm_device *dev,
2535 void *data, struct drm_file *file_priv)
2537 struct drm_framebuffer *fb = NULL;
2538 struct drm_framebuffer *fbl = NULL;
2539 uint32_t *id = data;
2542 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2545 mutex_lock(&file_priv->fbs_lock);
2546 mutex_lock(&dev->mode_config.fb_lock);
2547 fb = __drm_framebuffer_lookup(dev, *id);
2551 list_for_each_entry(fbl, &file_priv->fbs, filp_head)
2557 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
2558 __drm_framebuffer_unregister(dev, fb);
2560 list_del_init(&fb->filp_head);
2561 mutex_unlock(&dev->mode_config.fb_lock);
2562 mutex_unlock(&file_priv->fbs_lock);
2564 drm_framebuffer_remove(fb);
2569 mutex_unlock(&dev->mode_config.fb_lock);
2570 mutex_unlock(&file_priv->fbs_lock);
2576 * drm_mode_getfb - get FB info
2577 * @dev: drm device for the ioctl
2578 * @data: data pointer for the ioctl
2579 * @file_priv: drm file for the ioctl call
2581 * Lookup the FB given its ID and return info about it.
2583 * Called by the user via ioctl.
2586 * Zero on success, errno on failure.
2588 int drm_mode_getfb(struct drm_device *dev,
2589 void *data, struct drm_file *file_priv)
2591 struct drm_mode_fb_cmd *r = data;
2592 struct drm_framebuffer *fb;
2595 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2598 fb = drm_framebuffer_lookup(dev, r->fb_id);
2602 r->height = fb->height;
2603 r->width = fb->width;
2604 r->depth = fb->depth;
2605 r->bpp = fb->bits_per_pixel;
2606 r->pitch = fb->pitches[0];
2607 if (fb->funcs->create_handle)
2608 ret = fb->funcs->create_handle(fb, file_priv, &r->handle);
2612 drm_framebuffer_unreference(fb);
2617 int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
2618 void *data, struct drm_file *file_priv)
2620 struct drm_clip_rect __user *clips_ptr;
2621 struct drm_clip_rect *clips = NULL;
2622 struct drm_mode_fb_dirty_cmd *r = data;
2623 struct drm_framebuffer *fb;
2628 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2631 fb = drm_framebuffer_lookup(dev, r->fb_id);
2635 num_clips = r->num_clips;
2636 clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr;
2638 if (!num_clips != !clips_ptr) {
2643 flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
2645 /* If userspace annotates copy, clips must come in pairs */
2646 if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
2651 if (num_clips && clips_ptr) {
2652 if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) {
2656 clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
2662 ret = copy_from_user(clips, clips_ptr,
2663 num_clips * sizeof(*clips));
2670 if (fb->funcs->dirty) {
2671 drm_modeset_lock_all(dev);
2672 ret = fb->funcs->dirty(fb, file_priv, flags, r->color,
2674 drm_modeset_unlock_all(dev);
2682 drm_framebuffer_unreference(fb);
2689 * drm_fb_release - remove and free the FBs on this file
2690 * @priv: drm file for the ioctl
2692 * Destroy all the FBs associated with @filp.
2694 * Called by the user via ioctl.
2697 * Zero on success, errno on failure.
2699 void drm_fb_release(struct drm_file *priv)
2701 struct drm_device *dev = priv->minor->dev;
2702 struct drm_framebuffer *fb, *tfb;
2704 mutex_lock(&priv->fbs_lock);
2705 list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
2707 mutex_lock(&dev->mode_config.fb_lock);
2708 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
2709 __drm_framebuffer_unregister(dev, fb);
2710 mutex_unlock(&dev->mode_config.fb_lock);
2712 list_del_init(&fb->filp_head);
2714 /* This will also drop the fpriv->fbs reference. */
2715 drm_framebuffer_remove(fb);
2717 mutex_unlock(&priv->fbs_lock);
2721 * drm_mode_attachmode - add a mode to the user mode list
2723 * @connector: connector to add the mode to
2724 * @mode: mode to add
2726 * Add @mode to @connector's user mode list.
2728 static void drm_mode_attachmode(struct drm_device *dev,
2729 struct drm_connector *connector,
2730 struct drm_display_mode *mode)
2732 list_add_tail(&mode->head, &connector->user_modes);
2735 int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc,
2736 const struct drm_display_mode *mode)
2738 struct drm_connector *connector;
2740 struct drm_display_mode *dup_mode, *next;
2743 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2744 if (!connector->encoder)
2746 if (connector->encoder->crtc == crtc) {
2747 dup_mode = drm_mode_duplicate(dev, mode);
2752 list_add_tail(&dup_mode->head, &list);
2756 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2757 if (!connector->encoder)
2759 if (connector->encoder->crtc == crtc)
2760 list_move_tail(list.next, &connector->user_modes);
2763 WARN_ON(!list_empty(&list));
2766 list_for_each_entry_safe(dup_mode, next, &list, head)
2767 drm_mode_destroy(dev, dup_mode);
2771 EXPORT_SYMBOL(drm_mode_attachmode_crtc);
2773 static int drm_mode_detachmode(struct drm_device *dev,
2774 struct drm_connector *connector,
2775 struct drm_display_mode *mode)
2779 struct drm_display_mode *match_mode, *t;
2781 list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) {
2782 if (drm_mode_equal(match_mode, mode)) {
2783 list_del(&match_mode->head);
2784 drm_mode_destroy(dev, match_mode);
2796 int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode)
2798 struct drm_connector *connector;
2800 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2801 drm_mode_detachmode(dev, connector, mode);
2805 EXPORT_SYMBOL(drm_mode_detachmode_crtc);
2808 * drm_fb_attachmode - Attach a user mode to an connector
2809 * @dev: drm device for the ioctl
2810 * @data: data pointer for the ioctl
2811 * @file_priv: drm file for the ioctl call
2813 * This attaches a user specified mode to an connector.
2814 * Called by the user via ioctl.
2817 * Zero on success, errno on failure.
2819 int drm_mode_attachmode_ioctl(struct drm_device *dev,
2820 void *data, struct drm_file *file_priv)
2822 struct drm_mode_mode_cmd *mode_cmd = data;
2823 struct drm_connector *connector;
2824 struct drm_display_mode *mode;
2825 struct drm_mode_object *obj;
2826 struct drm_mode_modeinfo *umode = &mode_cmd->mode;
2829 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2832 drm_modeset_lock_all(dev);
2834 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2839 connector = obj_to_connector(obj);
2841 mode = drm_mode_create(dev);
2847 ret = drm_crtc_convert_umode(mode, umode);
2849 DRM_DEBUG_KMS("Invalid mode\n");
2850 drm_mode_destroy(dev, mode);
2854 drm_mode_attachmode(dev, connector, mode);
2856 drm_modeset_unlock_all(dev);
2862 * drm_fb_detachmode - Detach a user specified mode from an connector
2863 * @dev: drm device for the ioctl
2864 * @data: data pointer for the ioctl
2865 * @file_priv: drm file for the ioctl call
2867 * Called by the user via ioctl.
2870 * Zero on success, errno on failure.
2872 int drm_mode_detachmode_ioctl(struct drm_device *dev,
2873 void *data, struct drm_file *file_priv)
2875 struct drm_mode_object *obj;
2876 struct drm_mode_mode_cmd *mode_cmd = data;
2877 struct drm_connector *connector;
2878 struct drm_display_mode mode;
2879 struct drm_mode_modeinfo *umode = &mode_cmd->mode;
2882 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2885 drm_modeset_lock_all(dev);
2887 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2892 connector = obj_to_connector(obj);
2894 ret = drm_crtc_convert_umode(&mode, umode);
2896 DRM_DEBUG_KMS("Invalid mode\n");
2900 ret = drm_mode_detachmode(dev, connector, &mode);
2902 drm_modeset_unlock_all(dev);
2906 struct drm_property *drm_property_create(struct drm_device *dev, int flags,
2907 const char *name, int num_values)
2909 struct drm_property *property = NULL;
2912 property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
2917 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
2918 if (!property->values)
2922 ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
2926 property->flags = flags;
2927 property->num_values = num_values;
2928 INIT_LIST_HEAD(&property->enum_blob_list);
2931 strncpy(property->name, name, DRM_PROP_NAME_LEN);
2932 property->name[DRM_PROP_NAME_LEN-1] = '\0';
2935 list_add_tail(&property->head, &dev->mode_config.property_list);
2938 kfree(property->values);
2942 EXPORT_SYMBOL(drm_property_create);
2944 struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
2946 const struct drm_prop_enum_list *props,
2949 struct drm_property *property;
2952 flags |= DRM_MODE_PROP_ENUM;
2954 property = drm_property_create(dev, flags, name, num_values);
2958 for (i = 0; i < num_values; i++) {
2959 ret = drm_property_add_enum(property, i,
2963 drm_property_destroy(dev, property);
2970 EXPORT_SYMBOL(drm_property_create_enum);
2972 struct drm_property *drm_property_create_bitmask(struct drm_device *dev,
2973 int flags, const char *name,
2974 const struct drm_prop_enum_list *props,
2977 struct drm_property *property;
2980 flags |= DRM_MODE_PROP_BITMASK;
2982 property = drm_property_create(dev, flags, name, num_values);
2986 for (i = 0; i < num_values; i++) {
2987 ret = drm_property_add_enum(property, i,
2991 drm_property_destroy(dev, property);
2998 EXPORT_SYMBOL(drm_property_create_bitmask);
3000 struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
3002 uint64_t min, uint64_t max)
3004 struct drm_property *property;
3006 flags |= DRM_MODE_PROP_RANGE;
3008 property = drm_property_create(dev, flags, name, 2);
3012 property->values[0] = min;
3013 property->values[1] = max;
3017 EXPORT_SYMBOL(drm_property_create_range);
3019 int drm_property_add_enum(struct drm_property *property, int index,
3020 uint64_t value, const char *name)
3022 struct drm_property_enum *prop_enum;
3024 if (!(property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)))
3028 * Bitmask enum properties have the additional constraint of values
3031 if ((property->flags & DRM_MODE_PROP_BITMASK) && (value > 63))
3034 if (!list_empty(&property->enum_blob_list)) {
3035 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
3036 if (prop_enum->value == value) {
3037 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
3038 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
3044 prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
3048 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
3049 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
3050 prop_enum->value = value;
3052 property->values[index] = value;
3053 list_add_tail(&prop_enum->head, &property->enum_blob_list);
3056 EXPORT_SYMBOL(drm_property_add_enum);
3058 void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
3060 struct drm_property_enum *prop_enum, *pt;
3062 list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
3063 list_del(&prop_enum->head);
3067 if (property->num_values)
3068 kfree(property->values);
3069 drm_mode_object_put(dev, &property->base);
3070 list_del(&property->head);
3073 EXPORT_SYMBOL(drm_property_destroy);
3075 void drm_object_attach_property(struct drm_mode_object *obj,
3076 struct drm_property *property,
3079 int count = obj->properties->count;
3081 if (count == DRM_OBJECT_MAX_PROPERTY) {
3082 WARN(1, "Failed to attach object property (type: 0x%x). Please "
3083 "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time "
3084 "you see this message on the same object type.\n",
3089 obj->properties->ids[count] = property->base.id;
3090 obj->properties->values[count] = init_val;
3091 obj->properties->count++;
3093 EXPORT_SYMBOL(drm_object_attach_property);
3095 int drm_object_property_set_value(struct drm_mode_object *obj,
3096 struct drm_property *property, uint64_t val)
3100 for (i = 0; i < obj->properties->count; i++) {
3101 if (obj->properties->ids[i] == property->base.id) {
3102 obj->properties->values[i] = val;
3109 EXPORT_SYMBOL(drm_object_property_set_value);
3111 int drm_object_property_get_value(struct drm_mode_object *obj,
3112 struct drm_property *property, uint64_t *val)
3116 for (i = 0; i < obj->properties->count; i++) {
3117 if (obj->properties->ids[i] == property->base.id) {
3118 *val = obj->properties->values[i];
3125 EXPORT_SYMBOL(drm_object_property_get_value);
3127 int drm_mode_getproperty_ioctl(struct drm_device *dev,
3128 void *data, struct drm_file *file_priv)
3130 struct drm_mode_object *obj;
3131 struct drm_mode_get_property *out_resp = data;
3132 struct drm_property *property;
3135 int value_count = 0;
3138 struct drm_property_enum *prop_enum;
3139 struct drm_mode_property_enum __user *enum_ptr;
3140 struct drm_property_blob *prop_blob;
3141 uint32_t __user *blob_id_ptr;
3142 uint64_t __user *values_ptr;
3143 uint32_t __user *blob_length_ptr;
3145 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3148 drm_modeset_lock_all(dev);
3149 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
3154 property = obj_to_property(obj);
3156 if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) {
3157 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
3159 } else if (property->flags & DRM_MODE_PROP_BLOB) {
3160 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
3164 value_count = property->num_values;
3166 strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
3167 out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
3168 out_resp->flags = property->flags;
3170 if ((out_resp->count_values >= value_count) && value_count) {
3171 values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr;
3172 for (i = 0; i < value_count; i++) {
3173 if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
3179 out_resp->count_values = value_count;
3181 if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) {
3182 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
3184 enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr;
3185 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
3187 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
3192 if (copy_to_user(&enum_ptr[copied].name,
3193 &prop_enum->name, DRM_PROP_NAME_LEN)) {
3200 out_resp->count_enum_blobs = enum_count;
3203 if (property->flags & DRM_MODE_PROP_BLOB) {
3204 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
3206 blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr;
3207 blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr;
3209 list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
3210 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
3215 if (put_user(prop_blob->length, blob_length_ptr + copied)) {
3223 out_resp->count_enum_blobs = blob_count;
3226 drm_modeset_unlock_all(dev);
3230 static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
3233 struct drm_property_blob *blob;
3236 if (!length || !data)
3239 blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
3243 ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
3249 blob->length = length;
3251 memcpy(blob->data, data, length);
3253 list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
3257 static void drm_property_destroy_blob(struct drm_device *dev,
3258 struct drm_property_blob *blob)
3260 drm_mode_object_put(dev, &blob->base);
3261 list_del(&blob->head);
3265 int drm_mode_getblob_ioctl(struct drm_device *dev,
3266 void *data, struct drm_file *file_priv)
3268 struct drm_mode_object *obj;
3269 struct drm_mode_get_blob *out_resp = data;
3270 struct drm_property_blob *blob;
3272 void __user *blob_ptr;
3274 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3277 drm_modeset_lock_all(dev);
3278 obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
3283 blob = obj_to_blob(obj);
3285 if (out_resp->length == blob->length) {
3286 blob_ptr = (void __user *)(unsigned long)out_resp->data;
3287 if (copy_to_user(blob_ptr, blob->data, blob->length)){
3292 out_resp->length = blob->length;
3295 drm_modeset_unlock_all(dev);
3299 int drm_mode_connector_update_edid_property(struct drm_connector *connector,
3302 struct drm_device *dev = connector->dev;
3305 if (connector->edid_blob_ptr)
3306 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
3308 /* Delete edid, when there is none. */
3310 connector->edid_blob_ptr = NULL;
3311 ret = drm_object_property_set_value(&connector->base, dev->mode_config.edid_property, 0);
3315 size = EDID_LENGTH * (1 + edid->extensions);
3316 connector->edid_blob_ptr = drm_property_create_blob(connector->dev,
3318 if (!connector->edid_blob_ptr)
3321 ret = drm_object_property_set_value(&connector->base,
3322 dev->mode_config.edid_property,
3323 connector->edid_blob_ptr->base.id);
3327 EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
3329 static bool drm_property_change_is_valid(struct drm_property *property,
3332 if (property->flags & DRM_MODE_PROP_IMMUTABLE)
3334 if (property->flags & DRM_MODE_PROP_RANGE) {
3335 if (value < property->values[0] || value > property->values[1])
3338 } else if (property->flags & DRM_MODE_PROP_BITMASK) {
3340 uint64_t valid_mask = 0;
3341 for (i = 0; i < property->num_values; i++)
3342 valid_mask |= (1ULL << property->values[i]);
3343 return !(value & ~valid_mask);
3344 } else if (property->flags & DRM_MODE_PROP_BLOB) {
3345 /* Only the driver knows */
3349 for (i = 0; i < property->num_values; i++)
3350 if (property->values[i] == value)
3356 int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
3357 void *data, struct drm_file *file_priv)
3359 struct drm_mode_connector_set_property *conn_set_prop = data;
3360 struct drm_mode_obj_set_property obj_set_prop = {
3361 .value = conn_set_prop->value,
3362 .prop_id = conn_set_prop->prop_id,
3363 .obj_id = conn_set_prop->connector_id,
3364 .obj_type = DRM_MODE_OBJECT_CONNECTOR
3367 /* It does all the locking and checking we need */
3368 return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv);
3371 static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj,
3372 struct drm_property *property,
3376 struct drm_connector *connector = obj_to_connector(obj);
3378 /* Do DPMS ourselves */
3379 if (property == connector->dev->mode_config.dpms_property) {
3380 if (connector->funcs->dpms)
3381 (*connector->funcs->dpms)(connector, (int)value);
3383 } else if (connector->funcs->set_property)
3384 ret = connector->funcs->set_property(connector, property, value);
3386 /* store the property value if successful */
3388 drm_object_property_set_value(&connector->base, property, value);
3392 static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj,
3393 struct drm_property *property,
3397 struct drm_crtc *crtc = obj_to_crtc(obj);
3399 if (crtc->funcs->set_property)
3400 ret = crtc->funcs->set_property(crtc, property, value);
3402 drm_object_property_set_value(obj, property, value);
3407 static int drm_mode_plane_set_obj_prop(struct drm_mode_object *obj,
3408 struct drm_property *property,
3412 struct drm_plane *plane = obj_to_plane(obj);
3414 if (plane->funcs->set_property)
3415 ret = plane->funcs->set_property(plane, property, value);
3417 drm_object_property_set_value(obj, property, value);
3422 int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
3423 struct drm_file *file_priv)
3425 struct drm_mode_obj_get_properties *arg = data;
3426 struct drm_mode_object *obj;
3430 int props_count = 0;
3431 uint32_t __user *props_ptr;
3432 uint64_t __user *prop_values_ptr;
3434 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3437 drm_modeset_lock_all(dev);
3439 obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
3444 if (!obj->properties) {
3449 props_count = obj->properties->count;
3451 /* This ioctl is called twice, once to determine how much space is
3452 * needed, and the 2nd time to fill it. */
3453 if ((arg->count_props >= props_count) && props_count) {
3455 props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr);
3456 prop_values_ptr = (uint64_t __user *)(unsigned long)
3457 (arg->prop_values_ptr);
3458 for (i = 0; i < props_count; i++) {
3459 if (put_user(obj->properties->ids[i],
3460 props_ptr + copied)) {
3464 if (put_user(obj->properties->values[i],
3465 prop_values_ptr + copied)) {
3472 arg->count_props = props_count;
3474 drm_modeset_unlock_all(dev);
3478 int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
3479 struct drm_file *file_priv)
3481 struct drm_mode_obj_set_property *arg = data;
3482 struct drm_mode_object *arg_obj;
3483 struct drm_mode_object *prop_obj;
3484 struct drm_property *property;
3488 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3491 drm_modeset_lock_all(dev);
3493 arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
3496 if (!arg_obj->properties)
3499 for (i = 0; i < arg_obj->properties->count; i++)
3500 if (arg_obj->properties->ids[i] == arg->prop_id)
3503 if (i == arg_obj->properties->count)
3506 prop_obj = drm_mode_object_find(dev, arg->prop_id,
3507 DRM_MODE_OBJECT_PROPERTY);
3510 property = obj_to_property(prop_obj);
3512 if (!drm_property_change_is_valid(property, arg->value))
3515 switch (arg_obj->type) {
3516 case DRM_MODE_OBJECT_CONNECTOR:
3517 ret = drm_mode_connector_set_obj_prop(arg_obj, property,
3520 case DRM_MODE_OBJECT_CRTC:
3521 ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value);
3523 case DRM_MODE_OBJECT_PLANE:
3524 ret = drm_mode_plane_set_obj_prop(arg_obj, property, arg->value);
3529 drm_modeset_unlock_all(dev);
3533 int drm_mode_connector_attach_encoder(struct drm_connector *connector,
3534 struct drm_encoder *encoder)
3538 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3539 if (connector->encoder_ids[i] == 0) {
3540 connector->encoder_ids[i] = encoder->base.id;
3546 EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
3548 void drm_mode_connector_detach_encoder(struct drm_connector *connector,
3549 struct drm_encoder *encoder)
3552 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3553 if (connector->encoder_ids[i] == encoder->base.id) {
3554 connector->encoder_ids[i] = 0;
3555 if (connector->encoder == encoder)
3556 connector->encoder = NULL;
3561 EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
3563 int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
3566 crtc->gamma_size = gamma_size;
3568 crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
3569 if (!crtc->gamma_store) {
3570 crtc->gamma_size = 0;
3576 EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
3578 int drm_mode_gamma_set_ioctl(struct drm_device *dev,
3579 void *data, struct drm_file *file_priv)
3581 struct drm_mode_crtc_lut *crtc_lut = data;
3582 struct drm_mode_object *obj;
3583 struct drm_crtc *crtc;
3584 void *r_base, *g_base, *b_base;
3588 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3591 drm_modeset_lock_all(dev);
3592 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3597 crtc = obj_to_crtc(obj);
3599 if (crtc->funcs->gamma_set == NULL) {
3604 /* memcpy into gamma store */
3605 if (crtc_lut->gamma_size != crtc->gamma_size) {
3610 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3611 r_base = crtc->gamma_store;
3612 if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
3617 g_base = r_base + size;
3618 if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
3623 b_base = g_base + size;
3624 if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
3629 crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
3632 drm_modeset_unlock_all(dev);
3637 int drm_mode_gamma_get_ioctl(struct drm_device *dev,
3638 void *data, struct drm_file *file_priv)
3640 struct drm_mode_crtc_lut *crtc_lut = data;
3641 struct drm_mode_object *obj;
3642 struct drm_crtc *crtc;
3643 void *r_base, *g_base, *b_base;
3647 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3650 drm_modeset_lock_all(dev);
3651 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3656 crtc = obj_to_crtc(obj);
3658 /* memcpy into gamma store */
3659 if (crtc_lut->gamma_size != crtc->gamma_size) {
3664 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3665 r_base = crtc->gamma_store;
3666 if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
3671 g_base = r_base + size;
3672 if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
3677 b_base = g_base + size;
3678 if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
3683 drm_modeset_unlock_all(dev);
3687 int drm_mode_page_flip_ioctl(struct drm_device *dev,
3688 void *data, struct drm_file *file_priv)
3690 struct drm_mode_crtc_page_flip *page_flip = data;
3691 struct drm_mode_object *obj;
3692 struct drm_crtc *crtc;
3693 struct drm_framebuffer *fb = NULL, *old_fb = NULL;
3694 struct drm_pending_vblank_event *e = NULL;
3695 unsigned long flags;
3696 int hdisplay, vdisplay;
3699 if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
3700 page_flip->reserved != 0)
3703 obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
3706 crtc = obj_to_crtc(obj);
3708 mutex_lock(&crtc->mutex);
3709 if (crtc->fb == NULL) {
3710 /* The framebuffer is currently unbound, presumably
3711 * due to a hotplug event, that userspace has not
3718 if (crtc->funcs->page_flip == NULL)
3721 fb = drm_framebuffer_lookup(dev, page_flip->fb_id);
3725 hdisplay = crtc->mode.hdisplay;
3726 vdisplay = crtc->mode.vdisplay;
3728 if (crtc->invert_dimensions)
3729 swap(hdisplay, vdisplay);
3731 if (hdisplay > fb->width ||
3732 vdisplay > fb->height ||
3733 crtc->x > fb->width - hdisplay ||
3734 crtc->y > fb->height - vdisplay) {
3735 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
3736 fb->width, fb->height, hdisplay, vdisplay, crtc->x, crtc->y,
3737 crtc->invert_dimensions ? " (inverted)" : "");
3742 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3744 spin_lock_irqsave(&dev->event_lock, flags);
3745 if (file_priv->event_space < sizeof e->event) {
3746 spin_unlock_irqrestore(&dev->event_lock, flags);
3749 file_priv->event_space -= sizeof e->event;
3750 spin_unlock_irqrestore(&dev->event_lock, flags);
3752 e = kzalloc(sizeof *e, GFP_KERNEL);
3754 spin_lock_irqsave(&dev->event_lock, flags);
3755 file_priv->event_space += sizeof e->event;
3756 spin_unlock_irqrestore(&dev->event_lock, flags);
3760 e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
3761 e->event.base.length = sizeof e->event;
3762 e->event.user_data = page_flip->user_data;
3763 e->base.event = &e->event.base;
3764 e->base.file_priv = file_priv;
3766 (void (*) (struct drm_pending_event *)) kfree;
3770 ret = crtc->funcs->page_flip(crtc, fb, e);
3772 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3773 spin_lock_irqsave(&dev->event_lock, flags);
3774 file_priv->event_space += sizeof e->event;
3775 spin_unlock_irqrestore(&dev->event_lock, flags);
3778 /* Keep the old fb, don't unref it. */
3782 * Warn if the driver hasn't properly updated the crtc->fb
3783 * field to reflect that the new framebuffer is now used.
3784 * Failing to do so will screw with the reference counting
3787 WARN_ON(crtc->fb != fb);
3788 /* Unref only the old framebuffer. */
3794 drm_framebuffer_unreference(fb);
3796 drm_framebuffer_unreference(old_fb);
3797 mutex_unlock(&crtc->mutex);
3802 void drm_mode_config_reset(struct drm_device *dev)
3804 struct drm_crtc *crtc;
3805 struct drm_encoder *encoder;
3806 struct drm_connector *connector;
3808 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
3809 if (crtc->funcs->reset)
3810 crtc->funcs->reset(crtc);
3812 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
3813 if (encoder->funcs->reset)
3814 encoder->funcs->reset(encoder);
3816 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
3817 connector->status = connector_status_unknown;
3819 if (connector->funcs->reset)
3820 connector->funcs->reset(connector);
3823 EXPORT_SYMBOL(drm_mode_config_reset);
3825 int drm_mode_create_dumb_ioctl(struct drm_device *dev,
3826 void *data, struct drm_file *file_priv)
3828 struct drm_mode_create_dumb *args = data;
3830 if (!dev->driver->dumb_create)
3832 return dev->driver->dumb_create(file_priv, dev, args);
3835 int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
3836 void *data, struct drm_file *file_priv)
3838 struct drm_mode_map_dumb *args = data;
3840 /* call driver ioctl to get mmap offset */
3841 if (!dev->driver->dumb_map_offset)
3844 return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset);
3847 int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
3848 void *data, struct drm_file *file_priv)
3850 struct drm_mode_destroy_dumb *args = data;
3852 if (!dev->driver->dumb_destroy)
3855 return dev->driver->dumb_destroy(file_priv, dev, args->handle);
3859 * Just need to support RGB formats here for compat with code that doesn't
3860 * use pixel formats directly yet.
3862 void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
3867 case DRM_FORMAT_RGB332:
3868 case DRM_FORMAT_BGR233:
3872 case DRM_FORMAT_XRGB1555:
3873 case DRM_FORMAT_XBGR1555:
3874 case DRM_FORMAT_RGBX5551:
3875 case DRM_FORMAT_BGRX5551:
3876 case DRM_FORMAT_ARGB1555:
3877 case DRM_FORMAT_ABGR1555:
3878 case DRM_FORMAT_RGBA5551:
3879 case DRM_FORMAT_BGRA5551:
3883 case DRM_FORMAT_RGB565:
3884 case DRM_FORMAT_BGR565:
3888 case DRM_FORMAT_RGB888:
3889 case DRM_FORMAT_BGR888:
3893 case DRM_FORMAT_XRGB8888:
3894 case DRM_FORMAT_XBGR8888:
3895 case DRM_FORMAT_RGBX8888:
3896 case DRM_FORMAT_BGRX8888:
3900 case DRM_FORMAT_XRGB2101010:
3901 case DRM_FORMAT_XBGR2101010:
3902 case DRM_FORMAT_RGBX1010102:
3903 case DRM_FORMAT_BGRX1010102:
3904 case DRM_FORMAT_ARGB2101010:
3905 case DRM_FORMAT_ABGR2101010:
3906 case DRM_FORMAT_RGBA1010102:
3907 case DRM_FORMAT_BGRA1010102:
3911 case DRM_FORMAT_ARGB8888:
3912 case DRM_FORMAT_ABGR8888:
3913 case DRM_FORMAT_RGBA8888:
3914 case DRM_FORMAT_BGRA8888:
3919 DRM_DEBUG_KMS("unsupported pixel format\n");
3925 EXPORT_SYMBOL(drm_fb_get_bpp_depth);
3928 * drm_format_num_planes - get the number of planes for format
3929 * @format: pixel format (DRM_FORMAT_*)
3932 * The number of planes used by the specified pixel format.
3934 int drm_format_num_planes(uint32_t format)
3937 case DRM_FORMAT_YUV410:
3938 case DRM_FORMAT_YVU410:
3939 case DRM_FORMAT_YUV411:
3940 case DRM_FORMAT_YVU411:
3941 case DRM_FORMAT_YUV420:
3942 case DRM_FORMAT_YVU420:
3943 case DRM_FORMAT_YUV422:
3944 case DRM_FORMAT_YVU422:
3945 case DRM_FORMAT_YUV444:
3946 case DRM_FORMAT_YVU444:
3948 case DRM_FORMAT_NV12:
3949 case DRM_FORMAT_NV21:
3950 case DRM_FORMAT_NV16:
3951 case DRM_FORMAT_NV61:
3952 case DRM_FORMAT_NV24:
3953 case DRM_FORMAT_NV42:
3959 EXPORT_SYMBOL(drm_format_num_planes);
3962 * drm_format_plane_cpp - determine the bytes per pixel value
3963 * @format: pixel format (DRM_FORMAT_*)
3964 * @plane: plane index
3967 * The bytes per pixel value for the specified plane.
3969 int drm_format_plane_cpp(uint32_t format, int plane)
3974 if (plane >= drm_format_num_planes(format))
3978 case DRM_FORMAT_YUYV:
3979 case DRM_FORMAT_YVYU:
3980 case DRM_FORMAT_UYVY:
3981 case DRM_FORMAT_VYUY:
3983 case DRM_FORMAT_NV12:
3984 case DRM_FORMAT_NV21:
3985 case DRM_FORMAT_NV16:
3986 case DRM_FORMAT_NV61:
3987 case DRM_FORMAT_NV24:
3988 case DRM_FORMAT_NV42:
3989 return plane ? 2 : 1;
3990 case DRM_FORMAT_YUV410:
3991 case DRM_FORMAT_YVU410:
3992 case DRM_FORMAT_YUV411:
3993 case DRM_FORMAT_YVU411:
3994 case DRM_FORMAT_YUV420:
3995 case DRM_FORMAT_YVU420:
3996 case DRM_FORMAT_YUV422:
3997 case DRM_FORMAT_YVU422:
3998 case DRM_FORMAT_YUV444:
3999 case DRM_FORMAT_YVU444:
4002 drm_fb_get_bpp_depth(format, &depth, &bpp);
4006 EXPORT_SYMBOL(drm_format_plane_cpp);
4009 * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor
4010 * @format: pixel format (DRM_FORMAT_*)
4013 * The horizontal chroma subsampling factor for the
4014 * specified pixel format.
4016 int drm_format_horz_chroma_subsampling(uint32_t format)
4019 case DRM_FORMAT_YUV411:
4020 case DRM_FORMAT_YVU411:
4021 case DRM_FORMAT_YUV410:
4022 case DRM_FORMAT_YVU410:
4024 case DRM_FORMAT_YUYV:
4025 case DRM_FORMAT_YVYU:
4026 case DRM_FORMAT_UYVY:
4027 case DRM_FORMAT_VYUY:
4028 case DRM_FORMAT_NV12:
4029 case DRM_FORMAT_NV21:
4030 case DRM_FORMAT_NV16:
4031 case DRM_FORMAT_NV61:
4032 case DRM_FORMAT_YUV422:
4033 case DRM_FORMAT_YVU422:
4034 case DRM_FORMAT_YUV420:
4035 case DRM_FORMAT_YVU420:
4041 EXPORT_SYMBOL(drm_format_horz_chroma_subsampling);
4044 * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor
4045 * @format: pixel format (DRM_FORMAT_*)
4048 * The vertical chroma subsampling factor for the
4049 * specified pixel format.
4051 int drm_format_vert_chroma_subsampling(uint32_t format)
4054 case DRM_FORMAT_YUV410:
4055 case DRM_FORMAT_YVU410:
4057 case DRM_FORMAT_YUV420:
4058 case DRM_FORMAT_YVU420:
4059 case DRM_FORMAT_NV12:
4060 case DRM_FORMAT_NV21:
4066 EXPORT_SYMBOL(drm_format_vert_chroma_subsampling);