2 * Copyright (c) 2006-2008 Intel Corporation
3 * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
4 * Copyright (c) 2008 Red Hat Inc.
6 * DRM core CRTC related functions
8 * Permission to use, copy, modify, distribute, and sell this software and its
9 * documentation for any purpose is hereby granted without fee, provided that
10 * the above copyright notice appear in all copies and that both that copyright
11 * notice and this permission notice appear in supporting documentation, and
12 * that the name of the copyright holders not be used in advertising or
13 * publicity pertaining to distribution of the software without specific,
14 * written prior permission. The copyright holders make no representations
15 * about the suitability of this software for any purpose. It is provided "as
16 * is" without express or implied warranty.
18 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
19 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
20 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
21 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
22 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
23 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
28 * Eric Anholt <eric@anholt.net>
29 * Dave Airlie <airlied@linux.ie>
30 * Jesse Barnes <jesse.barnes@intel.com>
32 #include <linux/ctype.h>
33 #include <linux/list.h>
34 #include <linux/slab.h>
35 #include <linux/export.h>
37 #include <drm/drm_crtc.h>
38 #include <drm/drm_edid.h>
39 #include <drm/drm_fourcc.h>
42 * drm_modeset_lock_all - take all modeset locks
45 * This function takes all modeset locks, suitable where a more fine-grained
46 * scheme isn't (yet) implemented.
48 void drm_modeset_lock_all(struct drm_device *dev)
50 struct drm_crtc *crtc;
52 mutex_lock(&dev->mode_config.mutex);
54 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
55 mutex_lock_nest_lock(&crtc->mutex, &dev->mode_config.mutex);
57 EXPORT_SYMBOL(drm_modeset_lock_all);
60 * drm_modeset_unlock_all - drop all modeset locks
63 void drm_modeset_unlock_all(struct drm_device *dev)
65 struct drm_crtc *crtc;
67 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
68 mutex_unlock(&crtc->mutex);
70 mutex_unlock(&dev->mode_config.mutex);
72 EXPORT_SYMBOL(drm_modeset_unlock_all);
75 * drm_warn_on_modeset_not_all_locked - check that all modeset locks are locked
78 void drm_warn_on_modeset_not_all_locked(struct drm_device *dev)
80 struct drm_crtc *crtc;
82 /* Locking is currently fubar in the panic handler. */
86 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
87 WARN_ON(!mutex_is_locked(&crtc->mutex));
89 WARN_ON(!mutex_is_locked(&dev->mode_config.mutex));
91 EXPORT_SYMBOL(drm_warn_on_modeset_not_all_locked);
93 /* Avoid boilerplate. I'm tired of typing. */
94 #define DRM_ENUM_NAME_FN(fnname, list) \
95 const char *fnname(int val) \
98 for (i = 0; i < ARRAY_SIZE(list); i++) { \
99 if (list[i].type == val) \
100 return list[i].name; \
102 return "(unknown)"; \
108 static const struct drm_prop_enum_list drm_dpms_enum_list[] =
109 { { DRM_MODE_DPMS_ON, "On" },
110 { DRM_MODE_DPMS_STANDBY, "Standby" },
111 { DRM_MODE_DPMS_SUSPEND, "Suspend" },
112 { DRM_MODE_DPMS_OFF, "Off" }
115 DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)
118 * Optional properties
120 static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] =
122 { DRM_MODE_SCALE_NONE, "None" },
123 { DRM_MODE_SCALE_FULLSCREEN, "Full" },
124 { DRM_MODE_SCALE_CENTER, "Center" },
125 { DRM_MODE_SCALE_ASPECT, "Full aspect" },
128 static const struct drm_prop_enum_list drm_dithering_mode_enum_list[] =
130 { DRM_MODE_DITHERING_OFF, "Off" },
131 { DRM_MODE_DITHERING_ON, "On" },
132 { DRM_MODE_DITHERING_AUTO, "Automatic" },
136 * Non-global properties, but "required" for certain connectors.
138 static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] =
140 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
141 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
142 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
145 DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list)
147 static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] =
149 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
150 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
151 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
154 DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
155 drm_dvi_i_subconnector_enum_list)
157 static const struct drm_prop_enum_list drm_tv_select_enum_list[] =
159 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
160 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
161 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
162 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
163 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
166 DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)
168 static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
170 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
171 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
172 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
173 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
174 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
177 DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
178 drm_tv_subconnector_enum_list)
180 static const struct drm_prop_enum_list drm_dirty_info_enum_list[] = {
181 { DRM_MODE_DIRTY_OFF, "Off" },
182 { DRM_MODE_DIRTY_ON, "On" },
183 { DRM_MODE_DIRTY_ANNOTATE, "Annotate" },
186 struct drm_conn_prop_enum_list {
193 * Connector and encoder types.
195 static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
196 { { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 },
197 { DRM_MODE_CONNECTOR_VGA, "VGA", 0 },
198 { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 },
199 { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 },
200 { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 },
201 { DRM_MODE_CONNECTOR_Composite, "Composite", 0 },
202 { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 },
203 { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 },
204 { DRM_MODE_CONNECTOR_Component, "Component", 0 },
205 { DRM_MODE_CONNECTOR_9PinDIN, "DIN", 0 },
206 { DRM_MODE_CONNECTOR_DisplayPort, "DP", 0 },
207 { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A", 0 },
208 { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B", 0 },
209 { DRM_MODE_CONNECTOR_TV, "TV", 0 },
210 { DRM_MODE_CONNECTOR_eDP, "eDP", 0 },
211 { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual", 0},
214 static const struct drm_prop_enum_list drm_encoder_enum_list[] =
215 { { DRM_MODE_ENCODER_NONE, "None" },
216 { DRM_MODE_ENCODER_DAC, "DAC" },
217 { DRM_MODE_ENCODER_TMDS, "TMDS" },
218 { DRM_MODE_ENCODER_LVDS, "LVDS" },
219 { DRM_MODE_ENCODER_TVDAC, "TV" },
220 { DRM_MODE_ENCODER_VIRTUAL, "Virtual" },
223 const char *drm_get_encoder_name(const struct drm_encoder *encoder)
227 snprintf(buf, 32, "%s-%d",
228 drm_encoder_enum_list[encoder->encoder_type].name,
232 EXPORT_SYMBOL(drm_get_encoder_name);
234 const char *drm_get_connector_name(const struct drm_connector *connector)
238 snprintf(buf, 32, "%s-%d",
239 drm_connector_enum_list[connector->connector_type].name,
240 connector->connector_type_id);
243 EXPORT_SYMBOL(drm_get_connector_name);
245 const char *drm_get_connector_status_name(enum drm_connector_status status)
247 if (status == connector_status_connected)
249 else if (status == connector_status_disconnected)
250 return "disconnected";
254 EXPORT_SYMBOL(drm_get_connector_status_name);
256 static char printable_char(int c)
258 return isascii(c) && isprint(c) ? c : '?';
261 const char *drm_get_format_name(uint32_t format)
265 snprintf(buf, sizeof(buf),
266 "%c%c%c%c %s-endian (0x%08x)",
267 printable_char(format & 0xff),
268 printable_char((format >> 8) & 0xff),
269 printable_char((format >> 16) & 0xff),
270 printable_char((format >> 24) & 0x7f),
271 format & DRM_FORMAT_BIG_ENDIAN ? "big" : "little",
276 EXPORT_SYMBOL(drm_get_format_name);
279 * drm_mode_object_get - allocate a new modeset identifier
281 * @obj: object pointer, used to generate unique ID
282 * @obj_type: object type
284 * Create a unique identifier based on @ptr in @dev's identifier space. Used
285 * for tracking modes, CRTCs and connectors.
288 * New unique (relative to other objects in @dev) integer identifier for the
291 static int drm_mode_object_get(struct drm_device *dev,
292 struct drm_mode_object *obj, uint32_t obj_type)
296 mutex_lock(&dev->mode_config.idr_mutex);
297 ret = idr_alloc(&dev->mode_config.crtc_idr, obj, 1, 0, GFP_KERNEL);
300 * Set up the object linking under the protection of the idr
301 * lock so that other users can't see inconsistent state.
304 obj->type = obj_type;
306 mutex_unlock(&dev->mode_config.idr_mutex);
308 return ret < 0 ? ret : 0;
312 * drm_mode_object_put - free a modeset identifer
314 * @object: object to free
316 * Free @id from @dev's unique identifier pool.
318 static void drm_mode_object_put(struct drm_device *dev,
319 struct drm_mode_object *object)
321 mutex_lock(&dev->mode_config.idr_mutex);
322 idr_remove(&dev->mode_config.crtc_idr, object->id);
323 mutex_unlock(&dev->mode_config.idr_mutex);
327 * drm_mode_object_find - look up a drm object with static lifetime
329 * @id: id of the mode object
330 * @type: type of the mode object
332 * Note that framebuffers cannot be looked up with this functions - since those
333 * are reference counted, they need special treatment.
335 struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
336 uint32_t id, uint32_t type)
338 struct drm_mode_object *obj = NULL;
340 /* Framebuffers are reference counted and need their own lookup
342 WARN_ON(type == DRM_MODE_OBJECT_FB);
344 mutex_lock(&dev->mode_config.idr_mutex);
345 obj = idr_find(&dev->mode_config.crtc_idr, id);
346 if (!obj || (obj->type != type) || (obj->id != id))
348 mutex_unlock(&dev->mode_config.idr_mutex);
352 EXPORT_SYMBOL(drm_mode_object_find);
355 * drm_framebuffer_init - initialize a framebuffer
357 * @fb: framebuffer to be initialized
358 * @funcs: ... with these functions
360 * Allocates an ID for the framebuffer's parent mode object, sets its mode
361 * functions & device file and adds it to the master fd list.
364 * This functions publishes the fb and makes it available for concurrent access
365 * by other users. Which means by this point the fb _must_ be fully set up -
366 * since all the fb attributes are invariant over its lifetime, no further
367 * locking but only correct reference counting is required.
370 * Zero on success, error code on failure.
372 int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
373 const struct drm_framebuffer_funcs *funcs)
377 mutex_lock(&dev->mode_config.fb_lock);
378 kref_init(&fb->refcount);
379 INIT_LIST_HEAD(&fb->filp_head);
383 ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
387 /* Grab the idr reference. */
388 drm_framebuffer_reference(fb);
390 dev->mode_config.num_fb++;
391 list_add(&fb->head, &dev->mode_config.fb_list);
393 mutex_unlock(&dev->mode_config.fb_lock);
397 EXPORT_SYMBOL(drm_framebuffer_init);
399 static void drm_framebuffer_free(struct kref *kref)
401 struct drm_framebuffer *fb =
402 container_of(kref, struct drm_framebuffer, refcount);
403 fb->funcs->destroy(fb);
406 static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev,
409 struct drm_mode_object *obj = NULL;
410 struct drm_framebuffer *fb;
412 mutex_lock(&dev->mode_config.idr_mutex);
413 obj = idr_find(&dev->mode_config.crtc_idr, id);
414 if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id))
418 mutex_unlock(&dev->mode_config.idr_mutex);
424 * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference
426 * @id: id of the fb object
428 * If successful, this grabs an additional reference to the framebuffer -
429 * callers need to make sure to eventually unreference the returned framebuffer
432 struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev,
435 struct drm_framebuffer *fb;
437 mutex_lock(&dev->mode_config.fb_lock);
438 fb = __drm_framebuffer_lookup(dev, id);
440 drm_framebuffer_reference(fb);
441 mutex_unlock(&dev->mode_config.fb_lock);
445 EXPORT_SYMBOL(drm_framebuffer_lookup);
448 * drm_framebuffer_unreference - unref a framebuffer
449 * @fb: framebuffer to unref
451 * This functions decrements the fb's refcount and frees it if it drops to zero.
453 void drm_framebuffer_unreference(struct drm_framebuffer *fb)
455 DRM_DEBUG("FB ID: %d\n", fb->base.id);
456 kref_put(&fb->refcount, drm_framebuffer_free);
458 EXPORT_SYMBOL(drm_framebuffer_unreference);
461 * drm_framebuffer_reference - incr the fb refcnt
464 void drm_framebuffer_reference(struct drm_framebuffer *fb)
466 DRM_DEBUG("FB ID: %d\n", fb->base.id);
467 kref_get(&fb->refcount);
469 EXPORT_SYMBOL(drm_framebuffer_reference);
471 static void drm_framebuffer_free_bug(struct kref *kref)
476 static void __drm_framebuffer_unreference(struct drm_framebuffer *fb)
478 DRM_DEBUG("FB ID: %d\n", fb->base.id);
479 kref_put(&fb->refcount, drm_framebuffer_free_bug);
482 /* dev->mode_config.fb_lock must be held! */
483 static void __drm_framebuffer_unregister(struct drm_device *dev,
484 struct drm_framebuffer *fb)
486 mutex_lock(&dev->mode_config.idr_mutex);
487 idr_remove(&dev->mode_config.crtc_idr, fb->base.id);
488 mutex_unlock(&dev->mode_config.idr_mutex);
492 __drm_framebuffer_unreference(fb);
496 * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr
497 * @fb: fb to unregister
499 * Drivers need to call this when cleaning up driver-private framebuffers, e.g.
500 * those used for fbdev. Note that the caller must hold a reference of it's own,
501 * i.e. the object may not be destroyed through this call (since it'll lead to a
502 * locking inversion).
504 void drm_framebuffer_unregister_private(struct drm_framebuffer *fb)
506 struct drm_device *dev = fb->dev;
508 mutex_lock(&dev->mode_config.fb_lock);
509 /* Mark fb as reaped and drop idr ref. */
510 __drm_framebuffer_unregister(dev, fb);
511 mutex_unlock(&dev->mode_config.fb_lock);
513 EXPORT_SYMBOL(drm_framebuffer_unregister_private);
516 * drm_framebuffer_cleanup - remove a framebuffer object
517 * @fb: framebuffer to remove
519 * Cleanup references to a user-created framebuffer. This function is intended
520 * to be used from the drivers ->destroy callback.
522 * Note that this function does not remove the fb from active usuage - if it is
523 * still used anywhere, hilarity can ensue since userspace could call getfb on
524 * the id and get back -EINVAL. Obviously no concern at driver unload time.
526 * Also, the framebuffer will not be removed from the lookup idr - for
527 * user-created framebuffers this will happen in in the rmfb ioctl. For
528 * driver-private objects (e.g. for fbdev) drivers need to explicitly call
529 * drm_framebuffer_unregister_private.
531 void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
533 struct drm_device *dev = fb->dev;
535 mutex_lock(&dev->mode_config.fb_lock);
537 dev->mode_config.num_fb--;
538 mutex_unlock(&dev->mode_config.fb_lock);
540 EXPORT_SYMBOL(drm_framebuffer_cleanup);
543 * drm_framebuffer_remove - remove and unreference a framebuffer object
544 * @fb: framebuffer to remove
546 * Scans all the CRTCs and planes in @dev's mode_config. If they're
547 * using @fb, removes it, setting it to NULL. Then drops the reference to the
548 * passed-in framebuffer. Might take the modeset locks.
550 * Note that this function optimizes the cleanup away if the caller holds the
551 * last reference to the framebuffer. It is also guaranteed to not take the
552 * modeset locks in this case.
554 void drm_framebuffer_remove(struct drm_framebuffer *fb)
556 struct drm_device *dev = fb->dev;
557 struct drm_crtc *crtc;
558 struct drm_plane *plane;
559 struct drm_mode_set set;
562 WARN_ON(!list_empty(&fb->filp_head));
565 * drm ABI mandates that we remove any deleted framebuffers from active
566 * useage. But since most sane clients only remove framebuffers they no
567 * longer need, try to optimize this away.
569 * Since we're holding a reference ourselves, observing a refcount of 1
570 * means that we're the last holder and can skip it. Also, the refcount
571 * can never increase from 1 again, so we don't need any barriers or
574 * Note that userspace could try to race with use and instate a new
575 * usage _after_ we've cleared all current ones. End result will be an
576 * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot
579 if (atomic_read(&fb->refcount.refcount) > 1) {
580 drm_modeset_lock_all(dev);
581 /* remove from any CRTC */
582 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
583 if (crtc->fb == fb) {
584 /* should turn off the crtc */
585 memset(&set, 0, sizeof(struct drm_mode_set));
588 ret = drm_mode_set_config_internal(&set);
590 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
594 list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
596 drm_plane_force_disable(plane);
598 drm_modeset_unlock_all(dev);
601 drm_framebuffer_unreference(fb);
603 EXPORT_SYMBOL(drm_framebuffer_remove);
606 * drm_crtc_init - Initialise a new CRTC object
608 * @crtc: CRTC object to init
609 * @funcs: callbacks for the new CRTC
611 * Inits a new object created as base part of a driver crtc object.
614 * Zero on success, error code on failure.
616 int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
617 const struct drm_crtc_funcs *funcs)
623 crtc->invert_dimensions = false;
625 drm_modeset_lock_all(dev);
626 mutex_init(&crtc->mutex);
627 mutex_lock_nest_lock(&crtc->mutex, &dev->mode_config.mutex);
629 ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
633 crtc->base.properties = &crtc->properties;
635 list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
636 dev->mode_config.num_crtc++;
639 drm_modeset_unlock_all(dev);
643 EXPORT_SYMBOL(drm_crtc_init);
646 * drm_crtc_cleanup - Clean up the core crtc usage
647 * @crtc: CRTC to cleanup
649 * This function cleans up @crtc and removes it from the DRM mode setting
650 * core. Note that the function does *not* free the crtc structure itself,
651 * this is the responsibility of the caller.
653 void drm_crtc_cleanup(struct drm_crtc *crtc)
655 struct drm_device *dev = crtc->dev;
657 kfree(crtc->gamma_store);
658 crtc->gamma_store = NULL;
660 drm_mode_object_put(dev, &crtc->base);
661 list_del(&crtc->head);
662 dev->mode_config.num_crtc--;
664 EXPORT_SYMBOL(drm_crtc_cleanup);
667 * drm_mode_probed_add - add a mode to a connector's probed mode list
668 * @connector: connector the new mode
671 * Add @mode to @connector's mode list for later use.
673 void drm_mode_probed_add(struct drm_connector *connector,
674 struct drm_display_mode *mode)
676 list_add_tail(&mode->head, &connector->probed_modes);
678 EXPORT_SYMBOL(drm_mode_probed_add);
681 * drm_mode_remove - remove and free a mode
682 * @connector: connector list to modify
683 * @mode: mode to remove
685 * Remove @mode from @connector's mode list, then free it.
687 void drm_mode_remove(struct drm_connector *connector,
688 struct drm_display_mode *mode)
690 list_del(&mode->head);
691 drm_mode_destroy(connector->dev, mode);
693 EXPORT_SYMBOL(drm_mode_remove);
696 * drm_connector_init - Init a preallocated connector
698 * @connector: the connector to init
699 * @funcs: callbacks for this connector
700 * @connector_type: user visible type of the connector
702 * Initialises a preallocated connector. Connectors should be
703 * subclassed as part of driver connector objects.
706 * Zero on success, error code on failure.
708 int drm_connector_init(struct drm_device *dev,
709 struct drm_connector *connector,
710 const struct drm_connector_funcs *funcs,
715 drm_modeset_lock_all(dev);
717 ret = drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
721 connector->base.properties = &connector->properties;
722 connector->dev = dev;
723 connector->funcs = funcs;
724 connector->connector_type = connector_type;
725 connector->connector_type_id =
726 ++drm_connector_enum_list[connector_type].count; /* TODO */
727 INIT_LIST_HEAD(&connector->probed_modes);
728 INIT_LIST_HEAD(&connector->modes);
729 connector->edid_blob_ptr = NULL;
730 connector->status = connector_status_unknown;
732 list_add_tail(&connector->head, &dev->mode_config.connector_list);
733 dev->mode_config.num_connector++;
735 if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL)
736 drm_object_attach_property(&connector->base,
737 dev->mode_config.edid_property,
740 drm_object_attach_property(&connector->base,
741 dev->mode_config.dpms_property, 0);
744 drm_modeset_unlock_all(dev);
748 EXPORT_SYMBOL(drm_connector_init);
751 * drm_connector_cleanup - cleans up an initialised connector
752 * @connector: connector to cleanup
754 * Cleans up the connector but doesn't free the object.
756 void drm_connector_cleanup(struct drm_connector *connector)
758 struct drm_device *dev = connector->dev;
759 struct drm_display_mode *mode, *t;
761 list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
762 drm_mode_remove(connector, mode);
764 list_for_each_entry_safe(mode, t, &connector->modes, head)
765 drm_mode_remove(connector, mode);
767 drm_mode_object_put(dev, &connector->base);
768 list_del(&connector->head);
769 dev->mode_config.num_connector--;
771 EXPORT_SYMBOL(drm_connector_cleanup);
773 void drm_connector_unplug_all(struct drm_device *dev)
775 struct drm_connector *connector;
777 /* taking the mode config mutex ends up in a clash with sysfs */
778 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
779 drm_sysfs_connector_remove(connector);
782 EXPORT_SYMBOL(drm_connector_unplug_all);
784 int drm_encoder_init(struct drm_device *dev,
785 struct drm_encoder *encoder,
786 const struct drm_encoder_funcs *funcs,
791 drm_modeset_lock_all(dev);
793 ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
798 encoder->encoder_type = encoder_type;
799 encoder->funcs = funcs;
801 list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
802 dev->mode_config.num_encoder++;
805 drm_modeset_unlock_all(dev);
809 EXPORT_SYMBOL(drm_encoder_init);
811 void drm_encoder_cleanup(struct drm_encoder *encoder)
813 struct drm_device *dev = encoder->dev;
814 drm_modeset_lock_all(dev);
815 drm_mode_object_put(dev, &encoder->base);
816 list_del(&encoder->head);
817 dev->mode_config.num_encoder--;
818 drm_modeset_unlock_all(dev);
820 EXPORT_SYMBOL(drm_encoder_cleanup);
823 * drm_plane_init - Initialise a new plane object
825 * @plane: plane object to init
826 * @possible_crtcs: bitmask of possible CRTCs
827 * @funcs: callbacks for the new plane
828 * @formats: array of supported formats (%DRM_FORMAT_*)
829 * @format_count: number of elements in @formats
830 * @priv: plane is private (hidden from userspace)?
832 * Inits a new object created as base part of a driver plane object.
835 * Zero on success, error code on failure.
837 int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
838 unsigned long possible_crtcs,
839 const struct drm_plane_funcs *funcs,
840 const uint32_t *formats, uint32_t format_count,
845 drm_modeset_lock_all(dev);
847 ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE);
851 plane->base.properties = &plane->properties;
853 plane->funcs = funcs;
854 plane->format_types = kmalloc(sizeof(uint32_t) * format_count,
856 if (!plane->format_types) {
857 DRM_DEBUG_KMS("out of memory when allocating plane\n");
858 drm_mode_object_put(dev, &plane->base);
863 memcpy(plane->format_types, formats, format_count * sizeof(uint32_t));
864 plane->format_count = format_count;
865 plane->possible_crtcs = possible_crtcs;
867 /* private planes are not exposed to userspace, but depending on
868 * display hardware, might be convenient to allow sharing programming
869 * for the scanout engine with the crtc implementation.
872 list_add_tail(&plane->head, &dev->mode_config.plane_list);
873 dev->mode_config.num_plane++;
875 INIT_LIST_HEAD(&plane->head);
879 drm_modeset_unlock_all(dev);
883 EXPORT_SYMBOL(drm_plane_init);
886 * drm_plane_cleanup - Clean up the core plane usage
887 * @plane: plane to cleanup
889 * This function cleans up @plane and removes it from the DRM mode setting
890 * core. Note that the function does *not* free the plane structure itself,
891 * this is the responsibility of the caller.
893 void drm_plane_cleanup(struct drm_plane *plane)
895 struct drm_device *dev = plane->dev;
897 drm_modeset_lock_all(dev);
898 kfree(plane->format_types);
899 drm_mode_object_put(dev, &plane->base);
900 /* if not added to a list, it must be a private plane */
901 if (!list_empty(&plane->head)) {
902 list_del(&plane->head);
903 dev->mode_config.num_plane--;
905 drm_modeset_unlock_all(dev);
907 EXPORT_SYMBOL(drm_plane_cleanup);
910 * drm_plane_force_disable - Forcibly disable a plane
911 * @plane: plane to disable
913 * Forces the plane to be disabled.
915 * Used when the plane's current framebuffer is destroyed,
916 * and when restoring fbdev mode.
918 void drm_plane_force_disable(struct drm_plane *plane)
925 ret = plane->funcs->disable_plane(plane);
927 DRM_ERROR("failed to disable plane with busy fb\n");
928 /* disconnect the plane from the fb and crtc: */
929 __drm_framebuffer_unreference(plane->fb);
933 EXPORT_SYMBOL(drm_plane_force_disable);
936 * drm_mode_create - create a new display mode
939 * Create a new drm_display_mode, give it an ID, and return it.
942 * Pointer to new mode on success, NULL on error.
944 struct drm_display_mode *drm_mode_create(struct drm_device *dev)
946 struct drm_display_mode *nmode;
948 nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
952 if (drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE)) {
959 EXPORT_SYMBOL(drm_mode_create);
962 * drm_mode_destroy - remove a mode
964 * @mode: mode to remove
966 * Free @mode's unique identifier, then free it.
968 void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
973 drm_mode_object_put(dev, &mode->base);
977 EXPORT_SYMBOL(drm_mode_destroy);
979 static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
981 struct drm_property *edid;
982 struct drm_property *dpms;
985 * Standard properties (apply to all connectors)
987 edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
988 DRM_MODE_PROP_IMMUTABLE,
990 dev->mode_config.edid_property = edid;
992 dpms = drm_property_create_enum(dev, 0,
993 "DPMS", drm_dpms_enum_list,
994 ARRAY_SIZE(drm_dpms_enum_list));
995 dev->mode_config.dpms_property = dpms;
1001 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
1004 * Called by a driver the first time a DVI-I connector is made.
1006 int drm_mode_create_dvi_i_properties(struct drm_device *dev)
1008 struct drm_property *dvi_i_selector;
1009 struct drm_property *dvi_i_subconnector;
1011 if (dev->mode_config.dvi_i_select_subconnector_property)
1015 drm_property_create_enum(dev, 0,
1016 "select subconnector",
1017 drm_dvi_i_select_enum_list,
1018 ARRAY_SIZE(drm_dvi_i_select_enum_list));
1019 dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
1021 dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
1023 drm_dvi_i_subconnector_enum_list,
1024 ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
1025 dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
1029 EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
1032 * drm_create_tv_properties - create TV specific connector properties
1034 * @num_modes: number of different TV formats (modes) supported
1035 * @modes: array of pointers to strings containing name of each format
1037 * Called by a driver's TV initialization routine, this function creates
1038 * the TV specific connector properties for a given device. Caller is
1039 * responsible for allocating a list of format names and passing them to
1042 int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
1045 struct drm_property *tv_selector;
1046 struct drm_property *tv_subconnector;
1049 if (dev->mode_config.tv_select_subconnector_property)
1053 * Basic connector properties
1055 tv_selector = drm_property_create_enum(dev, 0,
1056 "select subconnector",
1057 drm_tv_select_enum_list,
1058 ARRAY_SIZE(drm_tv_select_enum_list));
1059 dev->mode_config.tv_select_subconnector_property = tv_selector;
1062 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
1064 drm_tv_subconnector_enum_list,
1065 ARRAY_SIZE(drm_tv_subconnector_enum_list));
1066 dev->mode_config.tv_subconnector_property = tv_subconnector;
1069 * Other, TV specific properties: margins & TV modes.
1071 dev->mode_config.tv_left_margin_property =
1072 drm_property_create_range(dev, 0, "left margin", 0, 100);
1074 dev->mode_config.tv_right_margin_property =
1075 drm_property_create_range(dev, 0, "right margin", 0, 100);
1077 dev->mode_config.tv_top_margin_property =
1078 drm_property_create_range(dev, 0, "top margin", 0, 100);
1080 dev->mode_config.tv_bottom_margin_property =
1081 drm_property_create_range(dev, 0, "bottom margin", 0, 100);
1083 dev->mode_config.tv_mode_property =
1084 drm_property_create(dev, DRM_MODE_PROP_ENUM,
1086 for (i = 0; i < num_modes; i++)
1087 drm_property_add_enum(dev->mode_config.tv_mode_property, i,
1090 dev->mode_config.tv_brightness_property =
1091 drm_property_create_range(dev, 0, "brightness", 0, 100);
1093 dev->mode_config.tv_contrast_property =
1094 drm_property_create_range(dev, 0, "contrast", 0, 100);
1096 dev->mode_config.tv_flicker_reduction_property =
1097 drm_property_create_range(dev, 0, "flicker reduction", 0, 100);
1099 dev->mode_config.tv_overscan_property =
1100 drm_property_create_range(dev, 0, "overscan", 0, 100);
1102 dev->mode_config.tv_saturation_property =
1103 drm_property_create_range(dev, 0, "saturation", 0, 100);
1105 dev->mode_config.tv_hue_property =
1106 drm_property_create_range(dev, 0, "hue", 0, 100);
1110 EXPORT_SYMBOL(drm_mode_create_tv_properties);
1113 * drm_mode_create_scaling_mode_property - create scaling mode property
1116 * Called by a driver the first time it's needed, must be attached to desired
1119 int drm_mode_create_scaling_mode_property(struct drm_device *dev)
1121 struct drm_property *scaling_mode;
1123 if (dev->mode_config.scaling_mode_property)
1127 drm_property_create_enum(dev, 0, "scaling mode",
1128 drm_scaling_mode_enum_list,
1129 ARRAY_SIZE(drm_scaling_mode_enum_list));
1131 dev->mode_config.scaling_mode_property = scaling_mode;
1135 EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
1138 * drm_mode_create_dithering_property - create dithering property
1141 * Called by a driver the first time it's needed, must be attached to desired
1144 int drm_mode_create_dithering_property(struct drm_device *dev)
1146 struct drm_property *dithering_mode;
1148 if (dev->mode_config.dithering_mode_property)
1152 drm_property_create_enum(dev, 0, "dithering",
1153 drm_dithering_mode_enum_list,
1154 ARRAY_SIZE(drm_dithering_mode_enum_list));
1155 dev->mode_config.dithering_mode_property = dithering_mode;
1159 EXPORT_SYMBOL(drm_mode_create_dithering_property);
1162 * drm_mode_create_dirty_property - create dirty property
1165 * Called by a driver the first time it's needed, must be attached to desired
1168 int drm_mode_create_dirty_info_property(struct drm_device *dev)
1170 struct drm_property *dirty_info;
1172 if (dev->mode_config.dirty_info_property)
1176 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
1178 drm_dirty_info_enum_list,
1179 ARRAY_SIZE(drm_dirty_info_enum_list));
1180 dev->mode_config.dirty_info_property = dirty_info;
1184 EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
1186 static int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
1188 uint32_t total_objects = 0;
1190 total_objects += dev->mode_config.num_crtc;
1191 total_objects += dev->mode_config.num_connector;
1192 total_objects += dev->mode_config.num_encoder;
1194 group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
1195 if (!group->id_list)
1198 group->num_crtcs = 0;
1199 group->num_connectors = 0;
1200 group->num_encoders = 0;
1204 int drm_mode_group_init_legacy_group(struct drm_device *dev,
1205 struct drm_mode_group *group)
1207 struct drm_crtc *crtc;
1208 struct drm_encoder *encoder;
1209 struct drm_connector *connector;
1212 if ((ret = drm_mode_group_init(dev, group)))
1215 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
1216 group->id_list[group->num_crtcs++] = crtc->base.id;
1218 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
1219 group->id_list[group->num_crtcs + group->num_encoders++] =
1222 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
1223 group->id_list[group->num_crtcs + group->num_encoders +
1224 group->num_connectors++] = connector->base.id;
1228 EXPORT_SYMBOL(drm_mode_group_init_legacy_group);
1231 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
1232 * @out: drm_mode_modeinfo struct to return to the user
1233 * @in: drm_display_mode to use
1235 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
1238 static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
1239 const struct drm_display_mode *in)
1241 WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX ||
1242 in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX ||
1243 in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX ||
1244 in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX ||
1245 in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX,
1246 "timing values too large for mode info\n");
1248 out->clock = in->clock;
1249 out->hdisplay = in->hdisplay;
1250 out->hsync_start = in->hsync_start;
1251 out->hsync_end = in->hsync_end;
1252 out->htotal = in->htotal;
1253 out->hskew = in->hskew;
1254 out->vdisplay = in->vdisplay;
1255 out->vsync_start = in->vsync_start;
1256 out->vsync_end = in->vsync_end;
1257 out->vtotal = in->vtotal;
1258 out->vscan = in->vscan;
1259 out->vrefresh = in->vrefresh;
1260 out->flags = in->flags;
1261 out->type = in->type;
1262 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1263 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1267 * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
1268 * @out: drm_display_mode to return to the user
1269 * @in: drm_mode_modeinfo to use
1271 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
1275 * Zero on success, errno on failure.
1277 static int drm_crtc_convert_umode(struct drm_display_mode *out,
1278 const struct drm_mode_modeinfo *in)
1280 if (in->clock > INT_MAX || in->vrefresh > INT_MAX)
1283 out->clock = in->clock;
1284 out->hdisplay = in->hdisplay;
1285 out->hsync_start = in->hsync_start;
1286 out->hsync_end = in->hsync_end;
1287 out->htotal = in->htotal;
1288 out->hskew = in->hskew;
1289 out->vdisplay = in->vdisplay;
1290 out->vsync_start = in->vsync_start;
1291 out->vsync_end = in->vsync_end;
1292 out->vtotal = in->vtotal;
1293 out->vscan = in->vscan;
1294 out->vrefresh = in->vrefresh;
1295 out->flags = in->flags;
1296 out->type = in->type;
1297 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1298 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1304 * drm_mode_getresources - get graphics configuration
1305 * @dev: drm device for the ioctl
1306 * @data: data pointer for the ioctl
1307 * @file_priv: drm file for the ioctl call
1309 * Construct a set of configuration description structures and return
1310 * them to the user, including CRTC, connector and framebuffer configuration.
1312 * Called by the user via ioctl.
1315 * Zero on success, errno on failure.
1317 int drm_mode_getresources(struct drm_device *dev, void *data,
1318 struct drm_file *file_priv)
1320 struct drm_mode_card_res *card_res = data;
1321 struct list_head *lh;
1322 struct drm_framebuffer *fb;
1323 struct drm_connector *connector;
1324 struct drm_crtc *crtc;
1325 struct drm_encoder *encoder;
1327 int connector_count = 0;
1330 int encoder_count = 0;
1332 uint32_t __user *fb_id;
1333 uint32_t __user *crtc_id;
1334 uint32_t __user *connector_id;
1335 uint32_t __user *encoder_id;
1336 struct drm_mode_group *mode_group;
1338 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1342 mutex_lock(&file_priv->fbs_lock);
1344 * For the non-control nodes we need to limit the list of resources
1345 * by IDs in the group list for this node
1347 list_for_each(lh, &file_priv->fbs)
1350 /* handle this in 4 parts */
1352 if (card_res->count_fbs >= fb_count) {
1354 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
1355 list_for_each_entry(fb, &file_priv->fbs, filp_head) {
1356 if (put_user(fb->base.id, fb_id + copied)) {
1357 mutex_unlock(&file_priv->fbs_lock);
1363 card_res->count_fbs = fb_count;
1364 mutex_unlock(&file_priv->fbs_lock);
1366 drm_modeset_lock_all(dev);
1367 mode_group = &file_priv->master->minor->mode_group;
1368 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1370 list_for_each(lh, &dev->mode_config.crtc_list)
1373 list_for_each(lh, &dev->mode_config.connector_list)
1376 list_for_each(lh, &dev->mode_config.encoder_list)
1380 crtc_count = mode_group->num_crtcs;
1381 connector_count = mode_group->num_connectors;
1382 encoder_count = mode_group->num_encoders;
1385 card_res->max_height = dev->mode_config.max_height;
1386 card_res->min_height = dev->mode_config.min_height;
1387 card_res->max_width = dev->mode_config.max_width;
1388 card_res->min_width = dev->mode_config.min_width;
1391 if (card_res->count_crtcs >= crtc_count) {
1393 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
1394 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1395 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1397 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
1398 if (put_user(crtc->base.id, crtc_id + copied)) {
1405 for (i = 0; i < mode_group->num_crtcs; i++) {
1406 if (put_user(mode_group->id_list[i],
1407 crtc_id + copied)) {
1415 card_res->count_crtcs = crtc_count;
1418 if (card_res->count_encoders >= encoder_count) {
1420 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
1421 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1422 list_for_each_entry(encoder,
1423 &dev->mode_config.encoder_list,
1425 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id,
1426 drm_get_encoder_name(encoder));
1427 if (put_user(encoder->base.id, encoder_id +
1435 for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
1436 if (put_user(mode_group->id_list[i],
1437 encoder_id + copied)) {
1446 card_res->count_encoders = encoder_count;
1449 if (card_res->count_connectors >= connector_count) {
1451 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
1452 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1453 list_for_each_entry(connector,
1454 &dev->mode_config.connector_list,
1456 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1458 drm_get_connector_name(connector));
1459 if (put_user(connector->base.id,
1460 connector_id + copied)) {
1467 int start = mode_group->num_crtcs +
1468 mode_group->num_encoders;
1469 for (i = start; i < start + mode_group->num_connectors; i++) {
1470 if (put_user(mode_group->id_list[i],
1471 connector_id + copied)) {
1479 card_res->count_connectors = connector_count;
1481 DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs,
1482 card_res->count_connectors, card_res->count_encoders);
1485 drm_modeset_unlock_all(dev);
1490 * drm_mode_getcrtc - get CRTC configuration
1491 * @dev: drm device for the ioctl
1492 * @data: data pointer for the ioctl
1493 * @file_priv: drm file for the ioctl call
1495 * Construct a CRTC configuration structure to return to the user.
1497 * Called by the user via ioctl.
1500 * Zero on success, errno on failure.
1502 int drm_mode_getcrtc(struct drm_device *dev,
1503 void *data, struct drm_file *file_priv)
1505 struct drm_mode_crtc *crtc_resp = data;
1506 struct drm_crtc *crtc;
1507 struct drm_mode_object *obj;
1510 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1513 drm_modeset_lock_all(dev);
1515 obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
1516 DRM_MODE_OBJECT_CRTC);
1521 crtc = obj_to_crtc(obj);
1523 crtc_resp->x = crtc->x;
1524 crtc_resp->y = crtc->y;
1525 crtc_resp->gamma_size = crtc->gamma_size;
1527 crtc_resp->fb_id = crtc->fb->base.id;
1529 crtc_resp->fb_id = 0;
1531 if (crtc->enabled) {
1533 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1534 crtc_resp->mode_valid = 1;
1537 crtc_resp->mode_valid = 0;
1541 drm_modeset_unlock_all(dev);
1546 * drm_mode_getconnector - get connector configuration
1547 * @dev: drm device for the ioctl
1548 * @data: data pointer for the ioctl
1549 * @file_priv: drm file for the ioctl call
1551 * Construct a connector configuration structure to return to the user.
1553 * Called by the user via ioctl.
1556 * Zero on success, errno on failure.
1558 int drm_mode_getconnector(struct drm_device *dev, void *data,
1559 struct drm_file *file_priv)
1561 struct drm_mode_get_connector *out_resp = data;
1562 struct drm_mode_object *obj;
1563 struct drm_connector *connector;
1564 struct drm_display_mode *mode;
1566 int props_count = 0;
1567 int encoders_count = 0;
1571 struct drm_mode_modeinfo u_mode;
1572 struct drm_mode_modeinfo __user *mode_ptr;
1573 uint32_t __user *prop_ptr;
1574 uint64_t __user *prop_values;
1575 uint32_t __user *encoder_ptr;
1577 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1580 memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1582 DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);
1584 mutex_lock(&dev->mode_config.mutex);
1586 obj = drm_mode_object_find(dev, out_resp->connector_id,
1587 DRM_MODE_OBJECT_CONNECTOR);
1592 connector = obj_to_connector(obj);
1594 props_count = connector->properties.count;
1596 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1597 if (connector->encoder_ids[i] != 0) {
1602 if (out_resp->count_modes == 0) {
1603 connector->funcs->fill_modes(connector,
1604 dev->mode_config.max_width,
1605 dev->mode_config.max_height);
1608 /* delayed so we get modes regardless of pre-fill_modes state */
1609 list_for_each_entry(mode, &connector->modes, head)
1612 out_resp->connector_id = connector->base.id;
1613 out_resp->connector_type = connector->connector_type;
1614 out_resp->connector_type_id = connector->connector_type_id;
1615 out_resp->mm_width = connector->display_info.width_mm;
1616 out_resp->mm_height = connector->display_info.height_mm;
1617 out_resp->subpixel = connector->display_info.subpixel_order;
1618 out_resp->connection = connector->status;
1619 if (connector->encoder)
1620 out_resp->encoder_id = connector->encoder->base.id;
1622 out_resp->encoder_id = 0;
1625 * This ioctl is called twice, once to determine how much space is
1626 * needed, and the 2nd time to fill it.
1628 if ((out_resp->count_modes >= mode_count) && mode_count) {
1630 mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr;
1631 list_for_each_entry(mode, &connector->modes, head) {
1632 drm_crtc_convert_to_umode(&u_mode, mode);
1633 if (copy_to_user(mode_ptr + copied,
1634 &u_mode, sizeof(u_mode))) {
1641 out_resp->count_modes = mode_count;
1643 if ((out_resp->count_props >= props_count) && props_count) {
1645 prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr);
1646 prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr);
1647 for (i = 0; i < connector->properties.count; i++) {
1648 if (put_user(connector->properties.ids[i],
1649 prop_ptr + copied)) {
1654 if (put_user(connector->properties.values[i],
1655 prop_values + copied)) {
1662 out_resp->count_props = props_count;
1664 if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
1666 encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr);
1667 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1668 if (connector->encoder_ids[i] != 0) {
1669 if (put_user(connector->encoder_ids[i],
1670 encoder_ptr + copied)) {
1678 out_resp->count_encoders = encoders_count;
1681 mutex_unlock(&dev->mode_config.mutex);
1686 int drm_mode_getencoder(struct drm_device *dev, void *data,
1687 struct drm_file *file_priv)
1689 struct drm_mode_get_encoder *enc_resp = data;
1690 struct drm_mode_object *obj;
1691 struct drm_encoder *encoder;
1694 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1697 drm_modeset_lock_all(dev);
1698 obj = drm_mode_object_find(dev, enc_resp->encoder_id,
1699 DRM_MODE_OBJECT_ENCODER);
1704 encoder = obj_to_encoder(obj);
1707 enc_resp->crtc_id = encoder->crtc->base.id;
1709 enc_resp->crtc_id = 0;
1710 enc_resp->encoder_type = encoder->encoder_type;
1711 enc_resp->encoder_id = encoder->base.id;
1712 enc_resp->possible_crtcs = encoder->possible_crtcs;
1713 enc_resp->possible_clones = encoder->possible_clones;
1716 drm_modeset_unlock_all(dev);
1721 * drm_mode_getplane_res - get plane info
1724 * @file_priv: DRM file info
1726 * Return an plane count and set of IDs.
1728 int drm_mode_getplane_res(struct drm_device *dev, void *data,
1729 struct drm_file *file_priv)
1731 struct drm_mode_get_plane_res *plane_resp = data;
1732 struct drm_mode_config *config;
1733 struct drm_plane *plane;
1734 uint32_t __user *plane_ptr;
1735 int copied = 0, ret = 0;
1737 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1740 drm_modeset_lock_all(dev);
1741 config = &dev->mode_config;
1744 * This ioctl is called twice, once to determine how much space is
1745 * needed, and the 2nd time to fill it.
1747 if (config->num_plane &&
1748 (plane_resp->count_planes >= config->num_plane)) {
1749 plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr;
1751 list_for_each_entry(plane, &config->plane_list, head) {
1752 if (put_user(plane->base.id, plane_ptr + copied)) {
1759 plane_resp->count_planes = config->num_plane;
1762 drm_modeset_unlock_all(dev);
1767 * drm_mode_getplane - get plane info
1770 * @file_priv: DRM file info
1772 * Return plane info, including formats supported, gamma size, any
1775 int drm_mode_getplane(struct drm_device *dev, void *data,
1776 struct drm_file *file_priv)
1778 struct drm_mode_get_plane *plane_resp = data;
1779 struct drm_mode_object *obj;
1780 struct drm_plane *plane;
1781 uint32_t __user *format_ptr;
1784 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1787 drm_modeset_lock_all(dev);
1788 obj = drm_mode_object_find(dev, plane_resp->plane_id,
1789 DRM_MODE_OBJECT_PLANE);
1794 plane = obj_to_plane(obj);
1797 plane_resp->crtc_id = plane->crtc->base.id;
1799 plane_resp->crtc_id = 0;
1802 plane_resp->fb_id = plane->fb->base.id;
1804 plane_resp->fb_id = 0;
1806 plane_resp->plane_id = plane->base.id;
1807 plane_resp->possible_crtcs = plane->possible_crtcs;
1808 plane_resp->gamma_size = 0;
1811 * This ioctl is called twice, once to determine how much space is
1812 * needed, and the 2nd time to fill it.
1814 if (plane->format_count &&
1815 (plane_resp->count_format_types >= plane->format_count)) {
1816 format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr;
1817 if (copy_to_user(format_ptr,
1818 plane->format_types,
1819 sizeof(uint32_t) * plane->format_count)) {
1824 plane_resp->count_format_types = plane->format_count;
1827 drm_modeset_unlock_all(dev);
1832 * drm_mode_setplane - set up or tear down an plane
1834 * @data: ioctl data*
1835 * @file_priv: DRM file info
1837 * Set plane info, including placement, fb, scaling, and other factors.
1838 * Or pass a NULL fb to disable.
1840 int drm_mode_setplane(struct drm_device *dev, void *data,
1841 struct drm_file *file_priv)
1843 struct drm_mode_set_plane *plane_req = data;
1844 struct drm_mode_object *obj;
1845 struct drm_plane *plane;
1846 struct drm_crtc *crtc;
1847 struct drm_framebuffer *fb = NULL, *old_fb = NULL;
1849 unsigned int fb_width, fb_height;
1852 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1856 * First, find the plane, crtc, and fb objects. If not available,
1857 * we don't bother to call the driver.
1859 obj = drm_mode_object_find(dev, plane_req->plane_id,
1860 DRM_MODE_OBJECT_PLANE);
1862 DRM_DEBUG_KMS("Unknown plane ID %d\n",
1863 plane_req->plane_id);
1866 plane = obj_to_plane(obj);
1868 /* No fb means shut it down */
1869 if (!plane_req->fb_id) {
1870 drm_modeset_lock_all(dev);
1872 plane->funcs->disable_plane(plane);
1875 drm_modeset_unlock_all(dev);
1879 obj = drm_mode_object_find(dev, plane_req->crtc_id,
1880 DRM_MODE_OBJECT_CRTC);
1882 DRM_DEBUG_KMS("Unknown crtc ID %d\n",
1883 plane_req->crtc_id);
1887 crtc = obj_to_crtc(obj);
1889 fb = drm_framebuffer_lookup(dev, plane_req->fb_id);
1891 DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
1897 /* Check whether this plane supports the fb pixel format. */
1898 for (i = 0; i < plane->format_count; i++)
1899 if (fb->pixel_format == plane->format_types[i])
1901 if (i == plane->format_count) {
1902 DRM_DEBUG_KMS("Invalid pixel format %s\n",
1903 drm_get_format_name(fb->pixel_format));
1908 fb_width = fb->width << 16;
1909 fb_height = fb->height << 16;
1911 /* Make sure source coordinates are inside the fb. */
1912 if (plane_req->src_w > fb_width ||
1913 plane_req->src_x > fb_width - plane_req->src_w ||
1914 plane_req->src_h > fb_height ||
1915 plane_req->src_y > fb_height - plane_req->src_h) {
1916 DRM_DEBUG_KMS("Invalid source coordinates "
1917 "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
1918 plane_req->src_w >> 16,
1919 ((plane_req->src_w & 0xffff) * 15625) >> 10,
1920 plane_req->src_h >> 16,
1921 ((plane_req->src_h & 0xffff) * 15625) >> 10,
1922 plane_req->src_x >> 16,
1923 ((plane_req->src_x & 0xffff) * 15625) >> 10,
1924 plane_req->src_y >> 16,
1925 ((plane_req->src_y & 0xffff) * 15625) >> 10);
1930 /* Give drivers some help against integer overflows */
1931 if (plane_req->crtc_w > INT_MAX ||
1932 plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w ||
1933 plane_req->crtc_h > INT_MAX ||
1934 plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) {
1935 DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
1936 plane_req->crtc_w, plane_req->crtc_h,
1937 plane_req->crtc_x, plane_req->crtc_y);
1942 drm_modeset_lock_all(dev);
1943 ret = plane->funcs->update_plane(plane, crtc, fb,
1944 plane_req->crtc_x, plane_req->crtc_y,
1945 plane_req->crtc_w, plane_req->crtc_h,
1946 plane_req->src_x, plane_req->src_y,
1947 plane_req->src_w, plane_req->src_h);
1954 drm_modeset_unlock_all(dev);
1958 drm_framebuffer_unreference(fb);
1960 drm_framebuffer_unreference(old_fb);
1966 * drm_mode_set_config_internal - helper to call ->set_config
1967 * @set: modeset config to set
1969 * This is a little helper to wrap internal calls to the ->set_config driver
1970 * interface. The only thing it adds is correct refcounting dance.
1972 int drm_mode_set_config_internal(struct drm_mode_set *set)
1974 struct drm_crtc *crtc = set->crtc;
1975 struct drm_framebuffer *fb;
1976 struct drm_crtc *tmp;
1980 * NOTE: ->set_config can also disable other crtcs (if we steal all
1981 * connectors from it), hence we need to refcount the fbs across all
1982 * crtcs. Atomic modeset will have saner semantics ...
1984 list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head)
1985 tmp->old_fb = tmp->fb;
1989 ret = crtc->funcs->set_config(set);
1991 /* crtc->fb must be updated by ->set_config, enforces this. */
1992 WARN_ON(fb != crtc->fb);
1995 list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) {
1997 drm_framebuffer_reference(tmp->fb);
1999 drm_framebuffer_unreference(tmp->old_fb);
2004 EXPORT_SYMBOL(drm_mode_set_config_internal);
2007 * drm_mode_setcrtc - set CRTC configuration
2008 * @dev: drm device for the ioctl
2009 * @data: data pointer for the ioctl
2010 * @file_priv: drm file for the ioctl call
2012 * Build a new CRTC configuration based on user request.
2014 * Called by the user via ioctl.
2017 * Zero on success, errno on failure.
2019 int drm_mode_setcrtc(struct drm_device *dev, void *data,
2020 struct drm_file *file_priv)
2022 struct drm_mode_config *config = &dev->mode_config;
2023 struct drm_mode_crtc *crtc_req = data;
2024 struct drm_mode_object *obj;
2025 struct drm_crtc *crtc;
2026 struct drm_connector **connector_set = NULL, *connector;
2027 struct drm_framebuffer *fb = NULL;
2028 struct drm_display_mode *mode = NULL;
2029 struct drm_mode_set set;
2030 uint32_t __user *set_connectors_ptr;
2034 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2037 /* For some reason crtc x/y offsets are signed internally. */
2038 if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX)
2041 drm_modeset_lock_all(dev);
2042 obj = drm_mode_object_find(dev, crtc_req->crtc_id,
2043 DRM_MODE_OBJECT_CRTC);
2045 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
2049 crtc = obj_to_crtc(obj);
2050 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
2052 if (crtc_req->mode_valid) {
2053 int hdisplay, vdisplay;
2054 /* If we have a mode we need a framebuffer. */
2055 /* If we pass -1, set the mode with the currently bound fb */
2056 if (crtc_req->fb_id == -1) {
2058 DRM_DEBUG_KMS("CRTC doesn't have current FB\n");
2063 /* Make refcounting symmetric with the lookup path. */
2064 drm_framebuffer_reference(fb);
2066 fb = drm_framebuffer_lookup(dev, crtc_req->fb_id);
2068 DRM_DEBUG_KMS("Unknown FB ID%d\n",
2075 mode = drm_mode_create(dev);
2081 ret = drm_crtc_convert_umode(mode, &crtc_req->mode);
2083 DRM_DEBUG_KMS("Invalid mode\n");
2087 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
2089 hdisplay = mode->hdisplay;
2090 vdisplay = mode->vdisplay;
2092 if (crtc->invert_dimensions)
2093 swap(hdisplay, vdisplay);
2095 if (hdisplay > fb->width ||
2096 vdisplay > fb->height ||
2097 crtc_req->x > fb->width - hdisplay ||
2098 crtc_req->y > fb->height - vdisplay) {
2099 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
2100 fb->width, fb->height,
2101 hdisplay, vdisplay, crtc_req->x, crtc_req->y,
2102 crtc->invert_dimensions ? " (inverted)" : "");
2108 if (crtc_req->count_connectors == 0 && mode) {
2109 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
2114 if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
2115 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
2116 crtc_req->count_connectors);
2121 if (crtc_req->count_connectors > 0) {
2124 /* Avoid unbounded kernel memory allocation */
2125 if (crtc_req->count_connectors > config->num_connector) {
2130 connector_set = kmalloc(crtc_req->count_connectors *
2131 sizeof(struct drm_connector *),
2133 if (!connector_set) {
2138 for (i = 0; i < crtc_req->count_connectors; i++) {
2139 set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr;
2140 if (get_user(out_id, &set_connectors_ptr[i])) {
2145 obj = drm_mode_object_find(dev, out_id,
2146 DRM_MODE_OBJECT_CONNECTOR);
2148 DRM_DEBUG_KMS("Connector id %d unknown\n",
2153 connector = obj_to_connector(obj);
2154 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
2156 drm_get_connector_name(connector));
2158 connector_set[i] = connector;
2163 set.x = crtc_req->x;
2164 set.y = crtc_req->y;
2166 set.connectors = connector_set;
2167 set.num_connectors = crtc_req->count_connectors;
2169 ret = drm_mode_set_config_internal(&set);
2173 drm_framebuffer_unreference(fb);
2175 kfree(connector_set);
2176 drm_mode_destroy(dev, mode);
2177 drm_modeset_unlock_all(dev);
2181 int drm_mode_cursor_ioctl(struct drm_device *dev,
2182 void *data, struct drm_file *file_priv)
2184 struct drm_mode_cursor *req = data;
2185 struct drm_mode_object *obj;
2186 struct drm_crtc *crtc;
2189 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2192 if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags))
2195 obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
2197 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
2200 crtc = obj_to_crtc(obj);
2202 mutex_lock(&crtc->mutex);
2203 if (req->flags & DRM_MODE_CURSOR_BO) {
2204 if (!crtc->funcs->cursor_set) {
2208 /* Turns off the cursor if handle is 0 */
2209 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
2210 req->width, req->height);
2213 if (req->flags & DRM_MODE_CURSOR_MOVE) {
2214 if (crtc->funcs->cursor_move) {
2215 ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
2222 mutex_unlock(&crtc->mutex);
2227 /* Original addfb only supported RGB formats, so figure out which one */
2228 uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth)
2234 fmt = DRM_FORMAT_C8;
2238 fmt = DRM_FORMAT_XRGB1555;
2240 fmt = DRM_FORMAT_RGB565;
2243 fmt = DRM_FORMAT_RGB888;
2247 fmt = DRM_FORMAT_XRGB8888;
2248 else if (depth == 30)
2249 fmt = DRM_FORMAT_XRGB2101010;
2251 fmt = DRM_FORMAT_ARGB8888;
2254 DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n");
2255 fmt = DRM_FORMAT_XRGB8888;
2261 EXPORT_SYMBOL(drm_mode_legacy_fb_format);
2264 * drm_mode_addfb - add an FB to the graphics configuration
2265 * @dev: drm device for the ioctl
2266 * @data: data pointer for the ioctl
2267 * @file_priv: drm file for the ioctl call
2269 * Add a new FB to the specified CRTC, given a user request.
2271 * Called by the user via ioctl.
2274 * Zero on success, errno on failure.
2276 int drm_mode_addfb(struct drm_device *dev,
2277 void *data, struct drm_file *file_priv)
2279 struct drm_mode_fb_cmd *or = data;
2280 struct drm_mode_fb_cmd2 r = {};
2281 struct drm_mode_config *config = &dev->mode_config;
2282 struct drm_framebuffer *fb;
2285 /* Use new struct with format internally */
2286 r.fb_id = or->fb_id;
2287 r.width = or->width;
2288 r.height = or->height;
2289 r.pitches[0] = or->pitch;
2290 r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth);
2291 r.handles[0] = or->handle;
2293 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2296 if ((config->min_width > r.width) || (r.width > config->max_width))
2299 if ((config->min_height > r.height) || (r.height > config->max_height))
2302 fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r);
2304 DRM_DEBUG_KMS("could not create framebuffer\n");
2308 mutex_lock(&file_priv->fbs_lock);
2309 or->fb_id = fb->base.id;
2310 list_add(&fb->filp_head, &file_priv->fbs);
2311 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
2312 mutex_unlock(&file_priv->fbs_lock);
2317 static int format_check(const struct drm_mode_fb_cmd2 *r)
2319 uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN;
2323 case DRM_FORMAT_RGB332:
2324 case DRM_FORMAT_BGR233:
2325 case DRM_FORMAT_XRGB4444:
2326 case DRM_FORMAT_XBGR4444:
2327 case DRM_FORMAT_RGBX4444:
2328 case DRM_FORMAT_BGRX4444:
2329 case DRM_FORMAT_ARGB4444:
2330 case DRM_FORMAT_ABGR4444:
2331 case DRM_FORMAT_RGBA4444:
2332 case DRM_FORMAT_BGRA4444:
2333 case DRM_FORMAT_XRGB1555:
2334 case DRM_FORMAT_XBGR1555:
2335 case DRM_FORMAT_RGBX5551:
2336 case DRM_FORMAT_BGRX5551:
2337 case DRM_FORMAT_ARGB1555:
2338 case DRM_FORMAT_ABGR1555:
2339 case DRM_FORMAT_RGBA5551:
2340 case DRM_FORMAT_BGRA5551:
2341 case DRM_FORMAT_RGB565:
2342 case DRM_FORMAT_BGR565:
2343 case DRM_FORMAT_RGB888:
2344 case DRM_FORMAT_BGR888:
2345 case DRM_FORMAT_XRGB8888:
2346 case DRM_FORMAT_XBGR8888:
2347 case DRM_FORMAT_RGBX8888:
2348 case DRM_FORMAT_BGRX8888:
2349 case DRM_FORMAT_ARGB8888:
2350 case DRM_FORMAT_ABGR8888:
2351 case DRM_FORMAT_RGBA8888:
2352 case DRM_FORMAT_BGRA8888:
2353 case DRM_FORMAT_XRGB2101010:
2354 case DRM_FORMAT_XBGR2101010:
2355 case DRM_FORMAT_RGBX1010102:
2356 case DRM_FORMAT_BGRX1010102:
2357 case DRM_FORMAT_ARGB2101010:
2358 case DRM_FORMAT_ABGR2101010:
2359 case DRM_FORMAT_RGBA1010102:
2360 case DRM_FORMAT_BGRA1010102:
2361 case DRM_FORMAT_YUYV:
2362 case DRM_FORMAT_YVYU:
2363 case DRM_FORMAT_UYVY:
2364 case DRM_FORMAT_VYUY:
2365 case DRM_FORMAT_AYUV:
2366 case DRM_FORMAT_NV12:
2367 case DRM_FORMAT_NV21:
2368 case DRM_FORMAT_NV16:
2369 case DRM_FORMAT_NV61:
2370 case DRM_FORMAT_NV24:
2371 case DRM_FORMAT_NV42:
2372 case DRM_FORMAT_YUV410:
2373 case DRM_FORMAT_YVU410:
2374 case DRM_FORMAT_YUV411:
2375 case DRM_FORMAT_YVU411:
2376 case DRM_FORMAT_YUV420:
2377 case DRM_FORMAT_YVU420:
2378 case DRM_FORMAT_YUV422:
2379 case DRM_FORMAT_YVU422:
2380 case DRM_FORMAT_YUV444:
2381 case DRM_FORMAT_YVU444:
2388 static int framebuffer_check(const struct drm_mode_fb_cmd2 *r)
2390 int ret, hsub, vsub, num_planes, i;
2392 ret = format_check(r);
2394 DRM_DEBUG_KMS("bad framebuffer format %s\n",
2395 drm_get_format_name(r->pixel_format));
2399 hsub = drm_format_horz_chroma_subsampling(r->pixel_format);
2400 vsub = drm_format_vert_chroma_subsampling(r->pixel_format);
2401 num_planes = drm_format_num_planes(r->pixel_format);
2403 if (r->width == 0 || r->width % hsub) {
2404 DRM_DEBUG_KMS("bad framebuffer width %u\n", r->height);
2408 if (r->height == 0 || r->height % vsub) {
2409 DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height);
2413 for (i = 0; i < num_planes; i++) {
2414 unsigned int width = r->width / (i != 0 ? hsub : 1);
2415 unsigned int height = r->height / (i != 0 ? vsub : 1);
2416 unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i);
2418 if (!r->handles[i]) {
2419 DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i);
2423 if ((uint64_t) width * cpp > UINT_MAX)
2426 if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX)
2429 if (r->pitches[i] < width * cpp) {
2430 DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i);
2439 * drm_mode_addfb2 - add an FB to the graphics configuration
2440 * @dev: drm device for the ioctl
2441 * @data: data pointer for the ioctl
2442 * @file_priv: drm file for the ioctl call
2444 * Add a new FB to the specified CRTC, given a user request with format.
2446 * Called by the user via ioctl.
2449 * Zero on success, errno on failure.
2451 int drm_mode_addfb2(struct drm_device *dev,
2452 void *data, struct drm_file *file_priv)
2454 struct drm_mode_fb_cmd2 *r = data;
2455 struct drm_mode_config *config = &dev->mode_config;
2456 struct drm_framebuffer *fb;
2459 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2462 if (r->flags & ~DRM_MODE_FB_INTERLACED) {
2463 DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags);
2467 if ((config->min_width > r->width) || (r->width > config->max_width)) {
2468 DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n",
2469 r->width, config->min_width, config->max_width);
2472 if ((config->min_height > r->height) || (r->height > config->max_height)) {
2473 DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n",
2474 r->height, config->min_height, config->max_height);
2478 ret = framebuffer_check(r);
2482 fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
2484 DRM_DEBUG_KMS("could not create framebuffer\n");
2488 mutex_lock(&file_priv->fbs_lock);
2489 r->fb_id = fb->base.id;
2490 list_add(&fb->filp_head, &file_priv->fbs);
2491 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
2492 mutex_unlock(&file_priv->fbs_lock);
2499 * drm_mode_rmfb - remove an FB from the configuration
2500 * @dev: drm device for the ioctl
2501 * @data: data pointer for the ioctl
2502 * @file_priv: drm file for the ioctl call
2504 * Remove the FB specified by the user.
2506 * Called by the user via ioctl.
2509 * Zero on success, errno on failure.
2511 int drm_mode_rmfb(struct drm_device *dev,
2512 void *data, struct drm_file *file_priv)
2514 struct drm_framebuffer *fb = NULL;
2515 struct drm_framebuffer *fbl = NULL;
2516 uint32_t *id = data;
2519 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2522 mutex_lock(&file_priv->fbs_lock);
2523 mutex_lock(&dev->mode_config.fb_lock);
2524 fb = __drm_framebuffer_lookup(dev, *id);
2528 list_for_each_entry(fbl, &file_priv->fbs, filp_head)
2534 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
2535 __drm_framebuffer_unregister(dev, fb);
2537 list_del_init(&fb->filp_head);
2538 mutex_unlock(&dev->mode_config.fb_lock);
2539 mutex_unlock(&file_priv->fbs_lock);
2541 drm_framebuffer_remove(fb);
2546 mutex_unlock(&dev->mode_config.fb_lock);
2547 mutex_unlock(&file_priv->fbs_lock);
2553 * drm_mode_getfb - get FB info
2554 * @dev: drm device for the ioctl
2555 * @data: data pointer for the ioctl
2556 * @file_priv: drm file for the ioctl call
2558 * Lookup the FB given its ID and return info about it.
2560 * Called by the user via ioctl.
2563 * Zero on success, errno on failure.
2565 int drm_mode_getfb(struct drm_device *dev,
2566 void *data, struct drm_file *file_priv)
2568 struct drm_mode_fb_cmd *r = data;
2569 struct drm_framebuffer *fb;
2572 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2575 fb = drm_framebuffer_lookup(dev, r->fb_id);
2579 r->height = fb->height;
2580 r->width = fb->width;
2581 r->depth = fb->depth;
2582 r->bpp = fb->bits_per_pixel;
2583 r->pitch = fb->pitches[0];
2584 if (fb->funcs->create_handle)
2585 ret = fb->funcs->create_handle(fb, file_priv, &r->handle);
2589 drm_framebuffer_unreference(fb);
2594 int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
2595 void *data, struct drm_file *file_priv)
2597 struct drm_clip_rect __user *clips_ptr;
2598 struct drm_clip_rect *clips = NULL;
2599 struct drm_mode_fb_dirty_cmd *r = data;
2600 struct drm_framebuffer *fb;
2605 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2608 fb = drm_framebuffer_lookup(dev, r->fb_id);
2612 num_clips = r->num_clips;
2613 clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr;
2615 if (!num_clips != !clips_ptr) {
2620 flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
2622 /* If userspace annotates copy, clips must come in pairs */
2623 if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
2628 if (num_clips && clips_ptr) {
2629 if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) {
2633 clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
2639 ret = copy_from_user(clips, clips_ptr,
2640 num_clips * sizeof(*clips));
2647 if (fb->funcs->dirty) {
2648 drm_modeset_lock_all(dev);
2649 ret = fb->funcs->dirty(fb, file_priv, flags, r->color,
2651 drm_modeset_unlock_all(dev);
2659 drm_framebuffer_unreference(fb);
2666 * drm_fb_release - remove and free the FBs on this file
2667 * @priv: drm file for the ioctl
2669 * Destroy all the FBs associated with @filp.
2671 * Called by the user via ioctl.
2674 * Zero on success, errno on failure.
2676 void drm_fb_release(struct drm_file *priv)
2678 struct drm_device *dev = priv->minor->dev;
2679 struct drm_framebuffer *fb, *tfb;
2681 mutex_lock(&priv->fbs_lock);
2682 list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
2684 mutex_lock(&dev->mode_config.fb_lock);
2685 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
2686 __drm_framebuffer_unregister(dev, fb);
2687 mutex_unlock(&dev->mode_config.fb_lock);
2689 list_del_init(&fb->filp_head);
2691 /* This will also drop the fpriv->fbs reference. */
2692 drm_framebuffer_remove(fb);
2694 mutex_unlock(&priv->fbs_lock);
2697 struct drm_property *drm_property_create(struct drm_device *dev, int flags,
2698 const char *name, int num_values)
2700 struct drm_property *property = NULL;
2703 property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
2708 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
2709 if (!property->values)
2713 ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
2717 property->flags = flags;
2718 property->num_values = num_values;
2719 INIT_LIST_HEAD(&property->enum_blob_list);
2722 strncpy(property->name, name, DRM_PROP_NAME_LEN);
2723 property->name[DRM_PROP_NAME_LEN-1] = '\0';
2726 list_add_tail(&property->head, &dev->mode_config.property_list);
2729 kfree(property->values);
2733 EXPORT_SYMBOL(drm_property_create);
2735 struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
2737 const struct drm_prop_enum_list *props,
2740 struct drm_property *property;
2743 flags |= DRM_MODE_PROP_ENUM;
2745 property = drm_property_create(dev, flags, name, num_values);
2749 for (i = 0; i < num_values; i++) {
2750 ret = drm_property_add_enum(property, i,
2754 drm_property_destroy(dev, property);
2761 EXPORT_SYMBOL(drm_property_create_enum);
2763 struct drm_property *drm_property_create_bitmask(struct drm_device *dev,
2764 int flags, const char *name,
2765 const struct drm_prop_enum_list *props,
2768 struct drm_property *property;
2771 flags |= DRM_MODE_PROP_BITMASK;
2773 property = drm_property_create(dev, flags, name, num_values);
2777 for (i = 0; i < num_values; i++) {
2778 ret = drm_property_add_enum(property, i,
2782 drm_property_destroy(dev, property);
2789 EXPORT_SYMBOL(drm_property_create_bitmask);
2791 struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
2793 uint64_t min, uint64_t max)
2795 struct drm_property *property;
2797 flags |= DRM_MODE_PROP_RANGE;
2799 property = drm_property_create(dev, flags, name, 2);
2803 property->values[0] = min;
2804 property->values[1] = max;
2808 EXPORT_SYMBOL(drm_property_create_range);
2810 int drm_property_add_enum(struct drm_property *property, int index,
2811 uint64_t value, const char *name)
2813 struct drm_property_enum *prop_enum;
2815 if (!(property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)))
2819 * Bitmask enum properties have the additional constraint of values
2822 if ((property->flags & DRM_MODE_PROP_BITMASK) && (value > 63))
2825 if (!list_empty(&property->enum_blob_list)) {
2826 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2827 if (prop_enum->value == value) {
2828 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2829 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2835 prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
2839 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2840 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2841 prop_enum->value = value;
2843 property->values[index] = value;
2844 list_add_tail(&prop_enum->head, &property->enum_blob_list);
2847 EXPORT_SYMBOL(drm_property_add_enum);
2849 void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
2851 struct drm_property_enum *prop_enum, *pt;
2853 list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
2854 list_del(&prop_enum->head);
2858 if (property->num_values)
2859 kfree(property->values);
2860 drm_mode_object_put(dev, &property->base);
2861 list_del(&property->head);
2864 EXPORT_SYMBOL(drm_property_destroy);
2866 void drm_object_attach_property(struct drm_mode_object *obj,
2867 struct drm_property *property,
2870 int count = obj->properties->count;
2872 if (count == DRM_OBJECT_MAX_PROPERTY) {
2873 WARN(1, "Failed to attach object property (type: 0x%x). Please "
2874 "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time "
2875 "you see this message on the same object type.\n",
2880 obj->properties->ids[count] = property->base.id;
2881 obj->properties->values[count] = init_val;
2882 obj->properties->count++;
2884 EXPORT_SYMBOL(drm_object_attach_property);
2886 int drm_object_property_set_value(struct drm_mode_object *obj,
2887 struct drm_property *property, uint64_t val)
2891 for (i = 0; i < obj->properties->count; i++) {
2892 if (obj->properties->ids[i] == property->base.id) {
2893 obj->properties->values[i] = val;
2900 EXPORT_SYMBOL(drm_object_property_set_value);
2902 int drm_object_property_get_value(struct drm_mode_object *obj,
2903 struct drm_property *property, uint64_t *val)
2907 for (i = 0; i < obj->properties->count; i++) {
2908 if (obj->properties->ids[i] == property->base.id) {
2909 *val = obj->properties->values[i];
2916 EXPORT_SYMBOL(drm_object_property_get_value);
2918 int drm_mode_getproperty_ioctl(struct drm_device *dev,
2919 void *data, struct drm_file *file_priv)
2921 struct drm_mode_object *obj;
2922 struct drm_mode_get_property *out_resp = data;
2923 struct drm_property *property;
2926 int value_count = 0;
2929 struct drm_property_enum *prop_enum;
2930 struct drm_mode_property_enum __user *enum_ptr;
2931 struct drm_property_blob *prop_blob;
2932 uint32_t __user *blob_id_ptr;
2933 uint64_t __user *values_ptr;
2934 uint32_t __user *blob_length_ptr;
2936 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2939 drm_modeset_lock_all(dev);
2940 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2945 property = obj_to_property(obj);
2947 if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) {
2948 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
2950 } else if (property->flags & DRM_MODE_PROP_BLOB) {
2951 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
2955 value_count = property->num_values;
2957 strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
2958 out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
2959 out_resp->flags = property->flags;
2961 if ((out_resp->count_values >= value_count) && value_count) {
2962 values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr;
2963 for (i = 0; i < value_count; i++) {
2964 if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
2970 out_resp->count_values = value_count;
2972 if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) {
2973 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
2975 enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr;
2976 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2978 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
2983 if (copy_to_user(&enum_ptr[copied].name,
2984 &prop_enum->name, DRM_PROP_NAME_LEN)) {
2991 out_resp->count_enum_blobs = enum_count;
2994 if (property->flags & DRM_MODE_PROP_BLOB) {
2995 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
2997 blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr;
2998 blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr;
3000 list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
3001 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
3006 if (put_user(prop_blob->length, blob_length_ptr + copied)) {
3014 out_resp->count_enum_blobs = blob_count;
3017 drm_modeset_unlock_all(dev);
3021 static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
3024 struct drm_property_blob *blob;
3027 if (!length || !data)
3030 blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
3034 ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
3040 blob->length = length;
3042 memcpy(blob->data, data, length);
3044 list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
3048 static void drm_property_destroy_blob(struct drm_device *dev,
3049 struct drm_property_blob *blob)
3051 drm_mode_object_put(dev, &blob->base);
3052 list_del(&blob->head);
3056 int drm_mode_getblob_ioctl(struct drm_device *dev,
3057 void *data, struct drm_file *file_priv)
3059 struct drm_mode_object *obj;
3060 struct drm_mode_get_blob *out_resp = data;
3061 struct drm_property_blob *blob;
3063 void __user *blob_ptr;
3065 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3068 drm_modeset_lock_all(dev);
3069 obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
3074 blob = obj_to_blob(obj);
3076 if (out_resp->length == blob->length) {
3077 blob_ptr = (void __user *)(unsigned long)out_resp->data;
3078 if (copy_to_user(blob_ptr, blob->data, blob->length)){
3083 out_resp->length = blob->length;
3086 drm_modeset_unlock_all(dev);
3090 int drm_mode_connector_update_edid_property(struct drm_connector *connector,
3093 struct drm_device *dev = connector->dev;
3096 if (connector->edid_blob_ptr)
3097 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
3099 /* Delete edid, when there is none. */
3101 connector->edid_blob_ptr = NULL;
3102 ret = drm_object_property_set_value(&connector->base, dev->mode_config.edid_property, 0);
3106 size = EDID_LENGTH * (1 + edid->extensions);
3107 connector->edid_blob_ptr = drm_property_create_blob(connector->dev,
3109 if (!connector->edid_blob_ptr)
3112 ret = drm_object_property_set_value(&connector->base,
3113 dev->mode_config.edid_property,
3114 connector->edid_blob_ptr->base.id);
3118 EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
3120 static bool drm_property_change_is_valid(struct drm_property *property,
3123 if (property->flags & DRM_MODE_PROP_IMMUTABLE)
3125 if (property->flags & DRM_MODE_PROP_RANGE) {
3126 if (value < property->values[0] || value > property->values[1])
3129 } else if (property->flags & DRM_MODE_PROP_BITMASK) {
3131 uint64_t valid_mask = 0;
3132 for (i = 0; i < property->num_values; i++)
3133 valid_mask |= (1ULL << property->values[i]);
3134 return !(value & ~valid_mask);
3135 } else if (property->flags & DRM_MODE_PROP_BLOB) {
3136 /* Only the driver knows */
3140 for (i = 0; i < property->num_values; i++)
3141 if (property->values[i] == value)
3147 int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
3148 void *data, struct drm_file *file_priv)
3150 struct drm_mode_connector_set_property *conn_set_prop = data;
3151 struct drm_mode_obj_set_property obj_set_prop = {
3152 .value = conn_set_prop->value,
3153 .prop_id = conn_set_prop->prop_id,
3154 .obj_id = conn_set_prop->connector_id,
3155 .obj_type = DRM_MODE_OBJECT_CONNECTOR
3158 /* It does all the locking and checking we need */
3159 return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv);
3162 static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj,
3163 struct drm_property *property,
3167 struct drm_connector *connector = obj_to_connector(obj);
3169 /* Do DPMS ourselves */
3170 if (property == connector->dev->mode_config.dpms_property) {
3171 if (connector->funcs->dpms)
3172 (*connector->funcs->dpms)(connector, (int)value);
3174 } else if (connector->funcs->set_property)
3175 ret = connector->funcs->set_property(connector, property, value);
3177 /* store the property value if successful */
3179 drm_object_property_set_value(&connector->base, property, value);
3183 static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj,
3184 struct drm_property *property,
3188 struct drm_crtc *crtc = obj_to_crtc(obj);
3190 if (crtc->funcs->set_property)
3191 ret = crtc->funcs->set_property(crtc, property, value);
3193 drm_object_property_set_value(obj, property, value);
3198 static int drm_mode_plane_set_obj_prop(struct drm_mode_object *obj,
3199 struct drm_property *property,
3203 struct drm_plane *plane = obj_to_plane(obj);
3205 if (plane->funcs->set_property)
3206 ret = plane->funcs->set_property(plane, property, value);
3208 drm_object_property_set_value(obj, property, value);
3213 int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
3214 struct drm_file *file_priv)
3216 struct drm_mode_obj_get_properties *arg = data;
3217 struct drm_mode_object *obj;
3221 int props_count = 0;
3222 uint32_t __user *props_ptr;
3223 uint64_t __user *prop_values_ptr;
3225 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3228 drm_modeset_lock_all(dev);
3230 obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
3235 if (!obj->properties) {
3240 props_count = obj->properties->count;
3242 /* This ioctl is called twice, once to determine how much space is
3243 * needed, and the 2nd time to fill it. */
3244 if ((arg->count_props >= props_count) && props_count) {
3246 props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr);
3247 prop_values_ptr = (uint64_t __user *)(unsigned long)
3248 (arg->prop_values_ptr);
3249 for (i = 0; i < props_count; i++) {
3250 if (put_user(obj->properties->ids[i],
3251 props_ptr + copied)) {
3255 if (put_user(obj->properties->values[i],
3256 prop_values_ptr + copied)) {
3263 arg->count_props = props_count;
3265 drm_modeset_unlock_all(dev);
3269 int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
3270 struct drm_file *file_priv)
3272 struct drm_mode_obj_set_property *arg = data;
3273 struct drm_mode_object *arg_obj;
3274 struct drm_mode_object *prop_obj;
3275 struct drm_property *property;
3279 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3282 drm_modeset_lock_all(dev);
3284 arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
3287 if (!arg_obj->properties)
3290 for (i = 0; i < arg_obj->properties->count; i++)
3291 if (arg_obj->properties->ids[i] == arg->prop_id)
3294 if (i == arg_obj->properties->count)
3297 prop_obj = drm_mode_object_find(dev, arg->prop_id,
3298 DRM_MODE_OBJECT_PROPERTY);
3301 property = obj_to_property(prop_obj);
3303 if (!drm_property_change_is_valid(property, arg->value))
3306 switch (arg_obj->type) {
3307 case DRM_MODE_OBJECT_CONNECTOR:
3308 ret = drm_mode_connector_set_obj_prop(arg_obj, property,
3311 case DRM_MODE_OBJECT_CRTC:
3312 ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value);
3314 case DRM_MODE_OBJECT_PLANE:
3315 ret = drm_mode_plane_set_obj_prop(arg_obj, property, arg->value);
3320 drm_modeset_unlock_all(dev);
3324 int drm_mode_connector_attach_encoder(struct drm_connector *connector,
3325 struct drm_encoder *encoder)
3329 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3330 if (connector->encoder_ids[i] == 0) {
3331 connector->encoder_ids[i] = encoder->base.id;
3337 EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
3339 void drm_mode_connector_detach_encoder(struct drm_connector *connector,
3340 struct drm_encoder *encoder)
3343 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3344 if (connector->encoder_ids[i] == encoder->base.id) {
3345 connector->encoder_ids[i] = 0;
3346 if (connector->encoder == encoder)
3347 connector->encoder = NULL;
3352 EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
3354 int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
3357 crtc->gamma_size = gamma_size;
3359 crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
3360 if (!crtc->gamma_store) {
3361 crtc->gamma_size = 0;
3367 EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
3369 int drm_mode_gamma_set_ioctl(struct drm_device *dev,
3370 void *data, struct drm_file *file_priv)
3372 struct drm_mode_crtc_lut *crtc_lut = data;
3373 struct drm_mode_object *obj;
3374 struct drm_crtc *crtc;
3375 void *r_base, *g_base, *b_base;
3379 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3382 drm_modeset_lock_all(dev);
3383 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3388 crtc = obj_to_crtc(obj);
3390 if (crtc->funcs->gamma_set == NULL) {
3395 /* memcpy into gamma store */
3396 if (crtc_lut->gamma_size != crtc->gamma_size) {
3401 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3402 r_base = crtc->gamma_store;
3403 if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
3408 g_base = r_base + size;
3409 if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
3414 b_base = g_base + size;
3415 if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
3420 crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
3423 drm_modeset_unlock_all(dev);
3428 int drm_mode_gamma_get_ioctl(struct drm_device *dev,
3429 void *data, struct drm_file *file_priv)
3431 struct drm_mode_crtc_lut *crtc_lut = data;
3432 struct drm_mode_object *obj;
3433 struct drm_crtc *crtc;
3434 void *r_base, *g_base, *b_base;
3438 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3441 drm_modeset_lock_all(dev);
3442 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3447 crtc = obj_to_crtc(obj);
3449 /* memcpy into gamma store */
3450 if (crtc_lut->gamma_size != crtc->gamma_size) {
3455 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3456 r_base = crtc->gamma_store;
3457 if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
3462 g_base = r_base + size;
3463 if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
3468 b_base = g_base + size;
3469 if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
3474 drm_modeset_unlock_all(dev);
3478 int drm_mode_page_flip_ioctl(struct drm_device *dev,
3479 void *data, struct drm_file *file_priv)
3481 struct drm_mode_crtc_page_flip *page_flip = data;
3482 struct drm_mode_object *obj;
3483 struct drm_crtc *crtc;
3484 struct drm_framebuffer *fb = NULL, *old_fb = NULL;
3485 struct drm_pending_vblank_event *e = NULL;
3486 unsigned long flags;
3487 int hdisplay, vdisplay;
3490 if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
3491 page_flip->reserved != 0)
3494 obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
3497 crtc = obj_to_crtc(obj);
3499 mutex_lock(&crtc->mutex);
3500 if (crtc->fb == NULL) {
3501 /* The framebuffer is currently unbound, presumably
3502 * due to a hotplug event, that userspace has not
3509 if (crtc->funcs->page_flip == NULL)
3512 fb = drm_framebuffer_lookup(dev, page_flip->fb_id);
3516 hdisplay = crtc->mode.hdisplay;
3517 vdisplay = crtc->mode.vdisplay;
3519 if (crtc->invert_dimensions)
3520 swap(hdisplay, vdisplay);
3522 if (hdisplay > fb->width ||
3523 vdisplay > fb->height ||
3524 crtc->x > fb->width - hdisplay ||
3525 crtc->y > fb->height - vdisplay) {
3526 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
3527 fb->width, fb->height, hdisplay, vdisplay, crtc->x, crtc->y,
3528 crtc->invert_dimensions ? " (inverted)" : "");
3533 if (crtc->fb->pixel_format != fb->pixel_format) {
3534 DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n");
3539 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3541 spin_lock_irqsave(&dev->event_lock, flags);
3542 if (file_priv->event_space < sizeof e->event) {
3543 spin_unlock_irqrestore(&dev->event_lock, flags);
3546 file_priv->event_space -= sizeof e->event;
3547 spin_unlock_irqrestore(&dev->event_lock, flags);
3549 e = kzalloc(sizeof *e, GFP_KERNEL);
3551 spin_lock_irqsave(&dev->event_lock, flags);
3552 file_priv->event_space += sizeof e->event;
3553 spin_unlock_irqrestore(&dev->event_lock, flags);
3557 e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
3558 e->event.base.length = sizeof e->event;
3559 e->event.user_data = page_flip->user_data;
3560 e->base.event = &e->event.base;
3561 e->base.file_priv = file_priv;
3563 (void (*) (struct drm_pending_event *)) kfree;
3567 ret = crtc->funcs->page_flip(crtc, fb, e);
3569 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3570 spin_lock_irqsave(&dev->event_lock, flags);
3571 file_priv->event_space += sizeof e->event;
3572 spin_unlock_irqrestore(&dev->event_lock, flags);
3575 /* Keep the old fb, don't unref it. */
3579 * Warn if the driver hasn't properly updated the crtc->fb
3580 * field to reflect that the new framebuffer is now used.
3581 * Failing to do so will screw with the reference counting
3584 WARN_ON(crtc->fb != fb);
3585 /* Unref only the old framebuffer. */
3591 drm_framebuffer_unreference(fb);
3593 drm_framebuffer_unreference(old_fb);
3594 mutex_unlock(&crtc->mutex);
3599 void drm_mode_config_reset(struct drm_device *dev)
3601 struct drm_crtc *crtc;
3602 struct drm_encoder *encoder;
3603 struct drm_connector *connector;
3605 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
3606 if (crtc->funcs->reset)
3607 crtc->funcs->reset(crtc);
3609 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
3610 if (encoder->funcs->reset)
3611 encoder->funcs->reset(encoder);
3613 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
3614 connector->status = connector_status_unknown;
3616 if (connector->funcs->reset)
3617 connector->funcs->reset(connector);
3620 EXPORT_SYMBOL(drm_mode_config_reset);
3622 int drm_mode_create_dumb_ioctl(struct drm_device *dev,
3623 void *data, struct drm_file *file_priv)
3625 struct drm_mode_create_dumb *args = data;
3627 if (!dev->driver->dumb_create)
3629 return dev->driver->dumb_create(file_priv, dev, args);
3632 int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
3633 void *data, struct drm_file *file_priv)
3635 struct drm_mode_map_dumb *args = data;
3637 /* call driver ioctl to get mmap offset */
3638 if (!dev->driver->dumb_map_offset)
3641 return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset);
3644 int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
3645 void *data, struct drm_file *file_priv)
3647 struct drm_mode_destroy_dumb *args = data;
3649 if (!dev->driver->dumb_destroy)
3652 return dev->driver->dumb_destroy(file_priv, dev, args->handle);
3656 * Just need to support RGB formats here for compat with code that doesn't
3657 * use pixel formats directly yet.
3659 void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
3664 case DRM_FORMAT_RGB332:
3665 case DRM_FORMAT_BGR233:
3669 case DRM_FORMAT_XRGB1555:
3670 case DRM_FORMAT_XBGR1555:
3671 case DRM_FORMAT_RGBX5551:
3672 case DRM_FORMAT_BGRX5551:
3673 case DRM_FORMAT_ARGB1555:
3674 case DRM_FORMAT_ABGR1555:
3675 case DRM_FORMAT_RGBA5551:
3676 case DRM_FORMAT_BGRA5551:
3680 case DRM_FORMAT_RGB565:
3681 case DRM_FORMAT_BGR565:
3685 case DRM_FORMAT_RGB888:
3686 case DRM_FORMAT_BGR888:
3690 case DRM_FORMAT_XRGB8888:
3691 case DRM_FORMAT_XBGR8888:
3692 case DRM_FORMAT_RGBX8888:
3693 case DRM_FORMAT_BGRX8888:
3697 case DRM_FORMAT_XRGB2101010:
3698 case DRM_FORMAT_XBGR2101010:
3699 case DRM_FORMAT_RGBX1010102:
3700 case DRM_FORMAT_BGRX1010102:
3701 case DRM_FORMAT_ARGB2101010:
3702 case DRM_FORMAT_ABGR2101010:
3703 case DRM_FORMAT_RGBA1010102:
3704 case DRM_FORMAT_BGRA1010102:
3708 case DRM_FORMAT_ARGB8888:
3709 case DRM_FORMAT_ABGR8888:
3710 case DRM_FORMAT_RGBA8888:
3711 case DRM_FORMAT_BGRA8888:
3716 DRM_DEBUG_KMS("unsupported pixel format\n");
3722 EXPORT_SYMBOL(drm_fb_get_bpp_depth);
3725 * drm_format_num_planes - get the number of planes for format
3726 * @format: pixel format (DRM_FORMAT_*)
3729 * The number of planes used by the specified pixel format.
3731 int drm_format_num_planes(uint32_t format)
3734 case DRM_FORMAT_YUV410:
3735 case DRM_FORMAT_YVU410:
3736 case DRM_FORMAT_YUV411:
3737 case DRM_FORMAT_YVU411:
3738 case DRM_FORMAT_YUV420:
3739 case DRM_FORMAT_YVU420:
3740 case DRM_FORMAT_YUV422:
3741 case DRM_FORMAT_YVU422:
3742 case DRM_FORMAT_YUV444:
3743 case DRM_FORMAT_YVU444:
3745 case DRM_FORMAT_NV12:
3746 case DRM_FORMAT_NV21:
3747 case DRM_FORMAT_NV16:
3748 case DRM_FORMAT_NV61:
3749 case DRM_FORMAT_NV24:
3750 case DRM_FORMAT_NV42:
3756 EXPORT_SYMBOL(drm_format_num_planes);
3759 * drm_format_plane_cpp - determine the bytes per pixel value
3760 * @format: pixel format (DRM_FORMAT_*)
3761 * @plane: plane index
3764 * The bytes per pixel value for the specified plane.
3766 int drm_format_plane_cpp(uint32_t format, int plane)
3771 if (plane >= drm_format_num_planes(format))
3775 case DRM_FORMAT_YUYV:
3776 case DRM_FORMAT_YVYU:
3777 case DRM_FORMAT_UYVY:
3778 case DRM_FORMAT_VYUY:
3780 case DRM_FORMAT_NV12:
3781 case DRM_FORMAT_NV21:
3782 case DRM_FORMAT_NV16:
3783 case DRM_FORMAT_NV61:
3784 case DRM_FORMAT_NV24:
3785 case DRM_FORMAT_NV42:
3786 return plane ? 2 : 1;
3787 case DRM_FORMAT_YUV410:
3788 case DRM_FORMAT_YVU410:
3789 case DRM_FORMAT_YUV411:
3790 case DRM_FORMAT_YVU411:
3791 case DRM_FORMAT_YUV420:
3792 case DRM_FORMAT_YVU420:
3793 case DRM_FORMAT_YUV422:
3794 case DRM_FORMAT_YVU422:
3795 case DRM_FORMAT_YUV444:
3796 case DRM_FORMAT_YVU444:
3799 drm_fb_get_bpp_depth(format, &depth, &bpp);
3803 EXPORT_SYMBOL(drm_format_plane_cpp);
3806 * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor
3807 * @format: pixel format (DRM_FORMAT_*)
3810 * The horizontal chroma subsampling factor for the
3811 * specified pixel format.
3813 int drm_format_horz_chroma_subsampling(uint32_t format)
3816 case DRM_FORMAT_YUV411:
3817 case DRM_FORMAT_YVU411:
3818 case DRM_FORMAT_YUV410:
3819 case DRM_FORMAT_YVU410:
3821 case DRM_FORMAT_YUYV:
3822 case DRM_FORMAT_YVYU:
3823 case DRM_FORMAT_UYVY:
3824 case DRM_FORMAT_VYUY:
3825 case DRM_FORMAT_NV12:
3826 case DRM_FORMAT_NV21:
3827 case DRM_FORMAT_NV16:
3828 case DRM_FORMAT_NV61:
3829 case DRM_FORMAT_YUV422:
3830 case DRM_FORMAT_YVU422:
3831 case DRM_FORMAT_YUV420:
3832 case DRM_FORMAT_YVU420:
3838 EXPORT_SYMBOL(drm_format_horz_chroma_subsampling);
3841 * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor
3842 * @format: pixel format (DRM_FORMAT_*)
3845 * The vertical chroma subsampling factor for the
3846 * specified pixel format.
3848 int drm_format_vert_chroma_subsampling(uint32_t format)
3851 case DRM_FORMAT_YUV410:
3852 case DRM_FORMAT_YVU410:
3854 case DRM_FORMAT_YUV420:
3855 case DRM_FORMAT_YVU420:
3856 case DRM_FORMAT_NV12:
3857 case DRM_FORMAT_NV21:
3863 EXPORT_SYMBOL(drm_format_vert_chroma_subsampling);
3866 * drm_mode_config_init - initialize DRM mode_configuration structure
3869 * Initialize @dev's mode_config structure, used for tracking the graphics
3870 * configuration of @dev.
3872 * Since this initializes the modeset locks, no locking is possible. Which is no
3873 * problem, since this should happen single threaded at init time. It is the
3874 * driver's problem to ensure this guarantee.
3877 void drm_mode_config_init(struct drm_device *dev)
3879 mutex_init(&dev->mode_config.mutex);
3880 mutex_init(&dev->mode_config.idr_mutex);
3881 mutex_init(&dev->mode_config.fb_lock);
3882 INIT_LIST_HEAD(&dev->mode_config.fb_list);
3883 INIT_LIST_HEAD(&dev->mode_config.crtc_list);
3884 INIT_LIST_HEAD(&dev->mode_config.connector_list);
3885 INIT_LIST_HEAD(&dev->mode_config.encoder_list);
3886 INIT_LIST_HEAD(&dev->mode_config.property_list);
3887 INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
3888 INIT_LIST_HEAD(&dev->mode_config.plane_list);
3889 idr_init(&dev->mode_config.crtc_idr);
3891 drm_modeset_lock_all(dev);
3892 drm_mode_create_standard_connector_properties(dev);
3893 drm_modeset_unlock_all(dev);
3895 /* Just to be sure */
3896 dev->mode_config.num_fb = 0;
3897 dev->mode_config.num_connector = 0;
3898 dev->mode_config.num_crtc = 0;
3899 dev->mode_config.num_encoder = 0;
3901 EXPORT_SYMBOL(drm_mode_config_init);
3904 * drm_mode_config_cleanup - free up DRM mode_config info
3907 * Free up all the connectors and CRTCs associated with this DRM device, then
3908 * free up the framebuffers and associated buffer objects.
3910 * Note that since this /should/ happen single-threaded at driver/device
3911 * teardown time, no locking is required. It's the driver's job to ensure that
3912 * this guarantee actually holds true.
3914 * FIXME: cleanup any dangling user buffer objects too
3916 void drm_mode_config_cleanup(struct drm_device *dev)
3918 struct drm_connector *connector, *ot;
3919 struct drm_crtc *crtc, *ct;
3920 struct drm_encoder *encoder, *enct;
3921 struct drm_framebuffer *fb, *fbt;
3922 struct drm_property *property, *pt;
3923 struct drm_property_blob *blob, *bt;
3924 struct drm_plane *plane, *plt;
3926 list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
3928 encoder->funcs->destroy(encoder);
3931 list_for_each_entry_safe(connector, ot,
3932 &dev->mode_config.connector_list, head) {
3933 connector->funcs->destroy(connector);
3936 list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
3938 drm_property_destroy(dev, property);
3941 list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list,
3943 drm_property_destroy_blob(dev, blob);
3947 * Single-threaded teardown context, so it's not required to grab the
3948 * fb_lock to protect against concurrent fb_list access. Contrary, it
3949 * would actually deadlock with the drm_framebuffer_cleanup function.
3951 * Also, if there are any framebuffers left, that's a driver leak now,
3952 * so politely WARN about this.
3954 WARN_ON(!list_empty(&dev->mode_config.fb_list));
3955 list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
3956 drm_framebuffer_remove(fb);
3959 list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
3961 plane->funcs->destroy(plane);
3964 list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
3965 crtc->funcs->destroy(crtc);
3968 idr_destroy(&dev->mode_config.crtc_idr);
3970 EXPORT_SYMBOL(drm_mode_config_cleanup);