2 * Copyright (c) 2006-2008 Intel Corporation
3 * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
4 * Copyright (c) 2008 Red Hat Inc.
6 * DRM core CRTC related functions
8 * Permission to use, copy, modify, distribute, and sell this software and its
9 * documentation for any purpose is hereby granted without fee, provided that
10 * the above copyright notice appear in all copies and that both that copyright
11 * notice and this permission notice appear in supporting documentation, and
12 * that the name of the copyright holders not be used in advertising or
13 * publicity pertaining to distribution of the software without specific,
14 * written prior permission. The copyright holders make no representations
15 * about the suitability of this software for any purpose. It is provided "as
16 * is" without express or implied warranty.
18 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
19 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
20 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
21 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
22 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
23 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
28 * Eric Anholt <eric@anholt.net>
29 * Dave Airlie <airlied@linux.ie>
30 * Jesse Barnes <jesse.barnes@intel.com>
32 #include <linux/ctype.h>
33 #include <linux/list.h>
34 #include <linux/slab.h>
35 #include <linux/export.h>
37 #include <drm/drm_crtc.h>
38 #include <drm/drm_edid.h>
39 #include <drm/drm_fourcc.h>
42 * drm_modeset_lock_all - take all modeset locks
45 * This function takes all modeset locks, suitable where a more fine-grained
46 * scheme isn't (yet) implemented.
48 void drm_modeset_lock_all(struct drm_device *dev)
50 struct drm_crtc *crtc;
52 mutex_lock(&dev->mode_config.mutex);
54 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
55 mutex_lock_nest_lock(&crtc->mutex, &dev->mode_config.mutex);
57 EXPORT_SYMBOL(drm_modeset_lock_all);
60 * drm_modeset_unlock_all - drop all modeset locks
63 void drm_modeset_unlock_all(struct drm_device *dev)
65 struct drm_crtc *crtc;
67 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
68 mutex_unlock(&crtc->mutex);
70 mutex_unlock(&dev->mode_config.mutex);
72 EXPORT_SYMBOL(drm_modeset_unlock_all);
75 * drm_warn_on_modeset_not_all_locked - check that all modeset locks are locked
78 void drm_warn_on_modeset_not_all_locked(struct drm_device *dev)
80 struct drm_crtc *crtc;
82 /* Locking is currently fubar in the panic handler. */
86 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
87 WARN_ON(!mutex_is_locked(&crtc->mutex));
89 WARN_ON(!mutex_is_locked(&dev->mode_config.mutex));
91 EXPORT_SYMBOL(drm_warn_on_modeset_not_all_locked);
93 /* Avoid boilerplate. I'm tired of typing. */
94 #define DRM_ENUM_NAME_FN(fnname, list) \
95 const char *fnname(int val) \
98 for (i = 0; i < ARRAY_SIZE(list); i++) { \
99 if (list[i].type == val) \
100 return list[i].name; \
102 return "(unknown)"; \
108 static const struct drm_prop_enum_list drm_dpms_enum_list[] =
109 { { DRM_MODE_DPMS_ON, "On" },
110 { DRM_MODE_DPMS_STANDBY, "Standby" },
111 { DRM_MODE_DPMS_SUSPEND, "Suspend" },
112 { DRM_MODE_DPMS_OFF, "Off" }
115 DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)
118 * Optional properties
120 static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] =
122 { DRM_MODE_SCALE_NONE, "None" },
123 { DRM_MODE_SCALE_FULLSCREEN, "Full" },
124 { DRM_MODE_SCALE_CENTER, "Center" },
125 { DRM_MODE_SCALE_ASPECT, "Full aspect" },
129 * Non-global properties, but "required" for certain connectors.
131 static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] =
133 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
134 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
135 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
138 DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list)
140 static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] =
142 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
143 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
144 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
147 DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
148 drm_dvi_i_subconnector_enum_list)
150 static const struct drm_prop_enum_list drm_tv_select_enum_list[] =
152 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
153 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
154 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
155 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
156 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
159 DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)
161 static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
163 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
164 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
165 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
166 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
167 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
170 DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
171 drm_tv_subconnector_enum_list)
173 static const struct drm_prop_enum_list drm_dirty_info_enum_list[] = {
174 { DRM_MODE_DIRTY_OFF, "Off" },
175 { DRM_MODE_DIRTY_ON, "On" },
176 { DRM_MODE_DIRTY_ANNOTATE, "Annotate" },
179 struct drm_conn_prop_enum_list {
186 * Connector and encoder types.
188 static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
189 { { DRM_MODE_CONNECTOR_Unknown, "Unknown" },
190 { DRM_MODE_CONNECTOR_VGA, "VGA" },
191 { DRM_MODE_CONNECTOR_DVII, "DVI-I" },
192 { DRM_MODE_CONNECTOR_DVID, "DVI-D" },
193 { DRM_MODE_CONNECTOR_DVIA, "DVI-A" },
194 { DRM_MODE_CONNECTOR_Composite, "Composite" },
195 { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO" },
196 { DRM_MODE_CONNECTOR_LVDS, "LVDS" },
197 { DRM_MODE_CONNECTOR_Component, "Component" },
198 { DRM_MODE_CONNECTOR_9PinDIN, "DIN" },
199 { DRM_MODE_CONNECTOR_DisplayPort, "DP" },
200 { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" },
201 { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" },
202 { DRM_MODE_CONNECTOR_TV, "TV" },
203 { DRM_MODE_CONNECTOR_eDP, "eDP" },
204 { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" },
205 { DRM_MODE_CONNECTOR_DSI, "DSI" },
208 static const struct drm_prop_enum_list drm_encoder_enum_list[] =
209 { { DRM_MODE_ENCODER_NONE, "None" },
210 { DRM_MODE_ENCODER_DAC, "DAC" },
211 { DRM_MODE_ENCODER_TMDS, "TMDS" },
212 { DRM_MODE_ENCODER_LVDS, "LVDS" },
213 { DRM_MODE_ENCODER_TVDAC, "TV" },
214 { DRM_MODE_ENCODER_VIRTUAL, "Virtual" },
215 { DRM_MODE_ENCODER_DSI, "DSI" },
218 void drm_connector_ida_init(void)
222 for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++)
223 ida_init(&drm_connector_enum_list[i].ida);
226 void drm_connector_ida_destroy(void)
230 for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++)
231 ida_destroy(&drm_connector_enum_list[i].ida);
234 const char *drm_get_encoder_name(const struct drm_encoder *encoder)
238 snprintf(buf, 32, "%s-%d",
239 drm_encoder_enum_list[encoder->encoder_type].name,
243 EXPORT_SYMBOL(drm_get_encoder_name);
245 const char *drm_get_connector_name(const struct drm_connector *connector)
249 snprintf(buf, 32, "%s-%d",
250 drm_connector_enum_list[connector->connector_type].name,
251 connector->connector_type_id);
254 EXPORT_SYMBOL(drm_get_connector_name);
256 const char *drm_get_connector_status_name(enum drm_connector_status status)
258 if (status == connector_status_connected)
260 else if (status == connector_status_disconnected)
261 return "disconnected";
265 EXPORT_SYMBOL(drm_get_connector_status_name);
267 static char printable_char(int c)
269 return isascii(c) && isprint(c) ? c : '?';
272 const char *drm_get_format_name(uint32_t format)
276 snprintf(buf, sizeof(buf),
277 "%c%c%c%c %s-endian (0x%08x)",
278 printable_char(format & 0xff),
279 printable_char((format >> 8) & 0xff),
280 printable_char((format >> 16) & 0xff),
281 printable_char((format >> 24) & 0x7f),
282 format & DRM_FORMAT_BIG_ENDIAN ? "big" : "little",
287 EXPORT_SYMBOL(drm_get_format_name);
290 * drm_mode_object_get - allocate a new modeset identifier
292 * @obj: object pointer, used to generate unique ID
293 * @obj_type: object type
295 * Create a unique identifier based on @ptr in @dev's identifier space. Used
296 * for tracking modes, CRTCs and connectors.
299 * New unique (relative to other objects in @dev) integer identifier for the
302 static int drm_mode_object_get(struct drm_device *dev,
303 struct drm_mode_object *obj, uint32_t obj_type)
307 mutex_lock(&dev->mode_config.idr_mutex);
308 ret = idr_alloc(&dev->mode_config.crtc_idr, obj, 1, 0, GFP_KERNEL);
311 * Set up the object linking under the protection of the idr
312 * lock so that other users can't see inconsistent state.
315 obj->type = obj_type;
317 mutex_unlock(&dev->mode_config.idr_mutex);
319 return ret < 0 ? ret : 0;
323 * drm_mode_object_put - free a modeset identifer
325 * @object: object to free
327 * Free @id from @dev's unique identifier pool.
329 static void drm_mode_object_put(struct drm_device *dev,
330 struct drm_mode_object *object)
332 mutex_lock(&dev->mode_config.idr_mutex);
333 idr_remove(&dev->mode_config.crtc_idr, object->id);
334 mutex_unlock(&dev->mode_config.idr_mutex);
338 * drm_mode_object_find - look up a drm object with static lifetime
340 * @id: id of the mode object
341 * @type: type of the mode object
343 * Note that framebuffers cannot be looked up with this functions - since those
344 * are reference counted, they need special treatment.
346 struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
347 uint32_t id, uint32_t type)
349 struct drm_mode_object *obj = NULL;
351 /* Framebuffers are reference counted and need their own lookup
353 WARN_ON(type == DRM_MODE_OBJECT_FB);
355 mutex_lock(&dev->mode_config.idr_mutex);
356 obj = idr_find(&dev->mode_config.crtc_idr, id);
357 if (!obj || (obj->type != type) || (obj->id != id))
359 mutex_unlock(&dev->mode_config.idr_mutex);
363 EXPORT_SYMBOL(drm_mode_object_find);
366 * drm_framebuffer_init - initialize a framebuffer
368 * @fb: framebuffer to be initialized
369 * @funcs: ... with these functions
371 * Allocates an ID for the framebuffer's parent mode object, sets its mode
372 * functions & device file and adds it to the master fd list.
375 * This functions publishes the fb and makes it available for concurrent access
376 * by other users. Which means by this point the fb _must_ be fully set up -
377 * since all the fb attributes are invariant over its lifetime, no further
378 * locking but only correct reference counting is required.
381 * Zero on success, error code on failure.
383 int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
384 const struct drm_framebuffer_funcs *funcs)
388 mutex_lock(&dev->mode_config.fb_lock);
389 kref_init(&fb->refcount);
390 INIT_LIST_HEAD(&fb->filp_head);
394 ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
398 /* Grab the idr reference. */
399 drm_framebuffer_reference(fb);
401 dev->mode_config.num_fb++;
402 list_add(&fb->head, &dev->mode_config.fb_list);
404 mutex_unlock(&dev->mode_config.fb_lock);
408 EXPORT_SYMBOL(drm_framebuffer_init);
410 static void drm_framebuffer_free(struct kref *kref)
412 struct drm_framebuffer *fb =
413 container_of(kref, struct drm_framebuffer, refcount);
414 fb->funcs->destroy(fb);
417 static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev,
420 struct drm_mode_object *obj = NULL;
421 struct drm_framebuffer *fb;
423 mutex_lock(&dev->mode_config.idr_mutex);
424 obj = idr_find(&dev->mode_config.crtc_idr, id);
425 if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id))
429 mutex_unlock(&dev->mode_config.idr_mutex);
435 * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference
437 * @id: id of the fb object
439 * If successful, this grabs an additional reference to the framebuffer -
440 * callers need to make sure to eventually unreference the returned framebuffer
443 struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev,
446 struct drm_framebuffer *fb;
448 mutex_lock(&dev->mode_config.fb_lock);
449 fb = __drm_framebuffer_lookup(dev, id);
451 drm_framebuffer_reference(fb);
452 mutex_unlock(&dev->mode_config.fb_lock);
456 EXPORT_SYMBOL(drm_framebuffer_lookup);
459 * drm_framebuffer_unreference - unref a framebuffer
460 * @fb: framebuffer to unref
462 * This functions decrements the fb's refcount and frees it if it drops to zero.
464 void drm_framebuffer_unreference(struct drm_framebuffer *fb)
466 DRM_DEBUG("FB ID: %d\n", fb->base.id);
467 kref_put(&fb->refcount, drm_framebuffer_free);
469 EXPORT_SYMBOL(drm_framebuffer_unreference);
472 * drm_framebuffer_reference - incr the fb refcnt
475 void drm_framebuffer_reference(struct drm_framebuffer *fb)
477 DRM_DEBUG("FB ID: %d\n", fb->base.id);
478 kref_get(&fb->refcount);
480 EXPORT_SYMBOL(drm_framebuffer_reference);
482 static void drm_framebuffer_free_bug(struct kref *kref)
487 static void __drm_framebuffer_unreference(struct drm_framebuffer *fb)
489 DRM_DEBUG("FB ID: %d\n", fb->base.id);
490 kref_put(&fb->refcount, drm_framebuffer_free_bug);
493 /* dev->mode_config.fb_lock must be held! */
494 static void __drm_framebuffer_unregister(struct drm_device *dev,
495 struct drm_framebuffer *fb)
497 mutex_lock(&dev->mode_config.idr_mutex);
498 idr_remove(&dev->mode_config.crtc_idr, fb->base.id);
499 mutex_unlock(&dev->mode_config.idr_mutex);
503 __drm_framebuffer_unreference(fb);
507 * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr
508 * @fb: fb to unregister
510 * Drivers need to call this when cleaning up driver-private framebuffers, e.g.
511 * those used for fbdev. Note that the caller must hold a reference of it's own,
512 * i.e. the object may not be destroyed through this call (since it'll lead to a
513 * locking inversion).
515 void drm_framebuffer_unregister_private(struct drm_framebuffer *fb)
517 struct drm_device *dev = fb->dev;
519 mutex_lock(&dev->mode_config.fb_lock);
520 /* Mark fb as reaped and drop idr ref. */
521 __drm_framebuffer_unregister(dev, fb);
522 mutex_unlock(&dev->mode_config.fb_lock);
524 EXPORT_SYMBOL(drm_framebuffer_unregister_private);
527 * drm_framebuffer_cleanup - remove a framebuffer object
528 * @fb: framebuffer to remove
530 * Cleanup references to a user-created framebuffer. This function is intended
531 * to be used from the drivers ->destroy callback.
533 * Note that this function does not remove the fb from active usuage - if it is
534 * still used anywhere, hilarity can ensue since userspace could call getfb on
535 * the id and get back -EINVAL. Obviously no concern at driver unload time.
537 * Also, the framebuffer will not be removed from the lookup idr - for
538 * user-created framebuffers this will happen in in the rmfb ioctl. For
539 * driver-private objects (e.g. for fbdev) drivers need to explicitly call
540 * drm_framebuffer_unregister_private.
542 void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
544 struct drm_device *dev = fb->dev;
546 mutex_lock(&dev->mode_config.fb_lock);
548 dev->mode_config.num_fb--;
549 mutex_unlock(&dev->mode_config.fb_lock);
551 EXPORT_SYMBOL(drm_framebuffer_cleanup);
554 * drm_framebuffer_remove - remove and unreference a framebuffer object
555 * @fb: framebuffer to remove
557 * Scans all the CRTCs and planes in @dev's mode_config. If they're
558 * using @fb, removes it, setting it to NULL. Then drops the reference to the
559 * passed-in framebuffer. Might take the modeset locks.
561 * Note that this function optimizes the cleanup away if the caller holds the
562 * last reference to the framebuffer. It is also guaranteed to not take the
563 * modeset locks in this case.
565 void drm_framebuffer_remove(struct drm_framebuffer *fb)
567 struct drm_device *dev = fb->dev;
568 struct drm_crtc *crtc;
569 struct drm_plane *plane;
570 struct drm_mode_set set;
573 WARN_ON(!list_empty(&fb->filp_head));
576 * drm ABI mandates that we remove any deleted framebuffers from active
577 * useage. But since most sane clients only remove framebuffers they no
578 * longer need, try to optimize this away.
580 * Since we're holding a reference ourselves, observing a refcount of 1
581 * means that we're the last holder and can skip it. Also, the refcount
582 * can never increase from 1 again, so we don't need any barriers or
585 * Note that userspace could try to race with use and instate a new
586 * usage _after_ we've cleared all current ones. End result will be an
587 * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot
590 if (atomic_read(&fb->refcount.refcount) > 1) {
591 drm_modeset_lock_all(dev);
592 /* remove from any CRTC */
593 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
594 if (crtc->fb == fb) {
595 /* should turn off the crtc */
596 memset(&set, 0, sizeof(struct drm_mode_set));
599 ret = drm_mode_set_config_internal(&set);
601 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
605 list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
607 drm_plane_force_disable(plane);
609 drm_modeset_unlock_all(dev);
612 drm_framebuffer_unreference(fb);
614 EXPORT_SYMBOL(drm_framebuffer_remove);
617 * drm_crtc_init - Initialise a new CRTC object
619 * @crtc: CRTC object to init
620 * @funcs: callbacks for the new CRTC
622 * Inits a new object created as base part of a driver crtc object.
625 * Zero on success, error code on failure.
627 int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
628 const struct drm_crtc_funcs *funcs)
634 crtc->invert_dimensions = false;
636 drm_modeset_lock_all(dev);
637 mutex_init(&crtc->mutex);
638 mutex_lock_nest_lock(&crtc->mutex, &dev->mode_config.mutex);
640 ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
644 crtc->base.properties = &crtc->properties;
646 list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
647 dev->mode_config.num_crtc++;
650 drm_modeset_unlock_all(dev);
654 EXPORT_SYMBOL(drm_crtc_init);
657 * drm_crtc_cleanup - Clean up the core crtc usage
658 * @crtc: CRTC to cleanup
660 * This function cleans up @crtc and removes it from the DRM mode setting
661 * core. Note that the function does *not* free the crtc structure itself,
662 * this is the responsibility of the caller.
664 void drm_crtc_cleanup(struct drm_crtc *crtc)
666 struct drm_device *dev = crtc->dev;
668 kfree(crtc->gamma_store);
669 crtc->gamma_store = NULL;
671 drm_mode_object_put(dev, &crtc->base);
672 list_del(&crtc->head);
673 dev->mode_config.num_crtc--;
675 EXPORT_SYMBOL(drm_crtc_cleanup);
678 * drm_mode_probed_add - add a mode to a connector's probed mode list
679 * @connector: connector the new mode
682 * Add @mode to @connector's mode list for later use.
684 void drm_mode_probed_add(struct drm_connector *connector,
685 struct drm_display_mode *mode)
687 list_add_tail(&mode->head, &connector->probed_modes);
689 EXPORT_SYMBOL(drm_mode_probed_add);
692 * drm_mode_remove - remove and free a mode
693 * @connector: connector list to modify
694 * @mode: mode to remove
696 * Remove @mode from @connector's mode list, then free it.
698 static void drm_mode_remove(struct drm_connector *connector,
699 struct drm_display_mode *mode)
701 list_del(&mode->head);
702 drm_mode_destroy(connector->dev, mode);
706 * drm_connector_init - Init a preallocated connector
708 * @connector: the connector to init
709 * @funcs: callbacks for this connector
710 * @connector_type: user visible type of the connector
712 * Initialises a preallocated connector. Connectors should be
713 * subclassed as part of driver connector objects.
716 * Zero on success, error code on failure.
718 int drm_connector_init(struct drm_device *dev,
719 struct drm_connector *connector,
720 const struct drm_connector_funcs *funcs,
724 struct ida *connector_ida =
725 &drm_connector_enum_list[connector_type].ida;
727 drm_modeset_lock_all(dev);
729 ret = drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
733 connector->base.properties = &connector->properties;
734 connector->dev = dev;
735 connector->funcs = funcs;
736 connector->connector_type = connector_type;
737 connector->connector_type_id =
738 ida_simple_get(connector_ida, 1, 0, GFP_KERNEL);
739 if (connector->connector_type_id < 0) {
740 ret = connector->connector_type_id;
741 drm_mode_object_put(dev, &connector->base);
744 INIT_LIST_HEAD(&connector->probed_modes);
745 INIT_LIST_HEAD(&connector->modes);
746 connector->edid_blob_ptr = NULL;
747 connector->status = connector_status_unknown;
749 list_add_tail(&connector->head, &dev->mode_config.connector_list);
750 dev->mode_config.num_connector++;
752 if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL)
753 drm_object_attach_property(&connector->base,
754 dev->mode_config.edid_property,
757 drm_object_attach_property(&connector->base,
758 dev->mode_config.dpms_property, 0);
761 drm_modeset_unlock_all(dev);
765 EXPORT_SYMBOL(drm_connector_init);
768 * drm_connector_cleanup - cleans up an initialised connector
769 * @connector: connector to cleanup
771 * Cleans up the connector but doesn't free the object.
773 void drm_connector_cleanup(struct drm_connector *connector)
775 struct drm_device *dev = connector->dev;
776 struct drm_display_mode *mode, *t;
778 list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
779 drm_mode_remove(connector, mode);
781 list_for_each_entry_safe(mode, t, &connector->modes, head)
782 drm_mode_remove(connector, mode);
784 ida_remove(&drm_connector_enum_list[connector->connector_type].ida,
785 connector->connector_type_id);
787 drm_mode_object_put(dev, &connector->base);
788 list_del(&connector->head);
789 dev->mode_config.num_connector--;
791 EXPORT_SYMBOL(drm_connector_cleanup);
793 void drm_connector_unplug_all(struct drm_device *dev)
795 struct drm_connector *connector;
797 /* taking the mode config mutex ends up in a clash with sysfs */
798 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
799 drm_sysfs_connector_remove(connector);
802 EXPORT_SYMBOL(drm_connector_unplug_all);
804 int drm_bridge_init(struct drm_device *dev, struct drm_bridge *bridge,
805 const struct drm_bridge_funcs *funcs)
809 drm_modeset_lock_all(dev);
811 ret = drm_mode_object_get(dev, &bridge->base, DRM_MODE_OBJECT_BRIDGE);
816 bridge->funcs = funcs;
818 list_add_tail(&bridge->head, &dev->mode_config.bridge_list);
819 dev->mode_config.num_bridge++;
822 drm_modeset_unlock_all(dev);
825 EXPORT_SYMBOL(drm_bridge_init);
827 void drm_bridge_cleanup(struct drm_bridge *bridge)
829 struct drm_device *dev = bridge->dev;
831 drm_modeset_lock_all(dev);
832 drm_mode_object_put(dev, &bridge->base);
833 list_del(&bridge->head);
834 dev->mode_config.num_bridge--;
835 drm_modeset_unlock_all(dev);
837 EXPORT_SYMBOL(drm_bridge_cleanup);
839 int drm_encoder_init(struct drm_device *dev,
840 struct drm_encoder *encoder,
841 const struct drm_encoder_funcs *funcs,
846 drm_modeset_lock_all(dev);
848 ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
853 encoder->encoder_type = encoder_type;
854 encoder->funcs = funcs;
856 list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
857 dev->mode_config.num_encoder++;
860 drm_modeset_unlock_all(dev);
864 EXPORT_SYMBOL(drm_encoder_init);
866 void drm_encoder_cleanup(struct drm_encoder *encoder)
868 struct drm_device *dev = encoder->dev;
869 drm_modeset_lock_all(dev);
870 drm_mode_object_put(dev, &encoder->base);
871 list_del(&encoder->head);
872 dev->mode_config.num_encoder--;
873 drm_modeset_unlock_all(dev);
875 EXPORT_SYMBOL(drm_encoder_cleanup);
878 * drm_plane_init - Initialise a new plane object
880 * @plane: plane object to init
881 * @possible_crtcs: bitmask of possible CRTCs
882 * @funcs: callbacks for the new plane
883 * @formats: array of supported formats (%DRM_FORMAT_*)
884 * @format_count: number of elements in @formats
885 * @priv: plane is private (hidden from userspace)?
887 * Inits a new object created as base part of a driver plane object.
890 * Zero on success, error code on failure.
892 int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
893 unsigned long possible_crtcs,
894 const struct drm_plane_funcs *funcs,
895 const uint32_t *formats, uint32_t format_count,
900 drm_modeset_lock_all(dev);
902 ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE);
906 plane->base.properties = &plane->properties;
908 plane->funcs = funcs;
909 plane->format_types = kmalloc(sizeof(uint32_t) * format_count,
911 if (!plane->format_types) {
912 DRM_DEBUG_KMS("out of memory when allocating plane\n");
913 drm_mode_object_put(dev, &plane->base);
918 memcpy(plane->format_types, formats, format_count * sizeof(uint32_t));
919 plane->format_count = format_count;
920 plane->possible_crtcs = possible_crtcs;
922 /* private planes are not exposed to userspace, but depending on
923 * display hardware, might be convenient to allow sharing programming
924 * for the scanout engine with the crtc implementation.
927 list_add_tail(&plane->head, &dev->mode_config.plane_list);
928 dev->mode_config.num_plane++;
930 INIT_LIST_HEAD(&plane->head);
934 drm_modeset_unlock_all(dev);
938 EXPORT_SYMBOL(drm_plane_init);
941 * drm_plane_cleanup - Clean up the core plane usage
942 * @plane: plane to cleanup
944 * This function cleans up @plane and removes it from the DRM mode setting
945 * core. Note that the function does *not* free the plane structure itself,
946 * this is the responsibility of the caller.
948 void drm_plane_cleanup(struct drm_plane *plane)
950 struct drm_device *dev = plane->dev;
952 drm_modeset_lock_all(dev);
953 kfree(plane->format_types);
954 drm_mode_object_put(dev, &plane->base);
955 /* if not added to a list, it must be a private plane */
956 if (!list_empty(&plane->head)) {
957 list_del(&plane->head);
958 dev->mode_config.num_plane--;
960 drm_modeset_unlock_all(dev);
962 EXPORT_SYMBOL(drm_plane_cleanup);
965 * drm_plane_force_disable - Forcibly disable a plane
966 * @plane: plane to disable
968 * Forces the plane to be disabled.
970 * Used when the plane's current framebuffer is destroyed,
971 * and when restoring fbdev mode.
973 void drm_plane_force_disable(struct drm_plane *plane)
980 ret = plane->funcs->disable_plane(plane);
982 DRM_ERROR("failed to disable plane with busy fb\n");
983 /* disconnect the plane from the fb and crtc: */
984 __drm_framebuffer_unreference(plane->fb);
988 EXPORT_SYMBOL(drm_plane_force_disable);
991 * drm_mode_create - create a new display mode
994 * Create a new drm_display_mode, give it an ID, and return it.
997 * Pointer to new mode on success, NULL on error.
999 struct drm_display_mode *drm_mode_create(struct drm_device *dev)
1001 struct drm_display_mode *nmode;
1003 nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
1007 if (drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE)) {
1014 EXPORT_SYMBOL(drm_mode_create);
1017 * drm_mode_destroy - remove a mode
1019 * @mode: mode to remove
1021 * Free @mode's unique identifier, then free it.
1023 void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
1028 drm_mode_object_put(dev, &mode->base);
1032 EXPORT_SYMBOL(drm_mode_destroy);
1034 static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
1036 struct drm_property *edid;
1037 struct drm_property *dpms;
1040 * Standard properties (apply to all connectors)
1042 edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
1043 DRM_MODE_PROP_IMMUTABLE,
1045 dev->mode_config.edid_property = edid;
1047 dpms = drm_property_create_enum(dev, 0,
1048 "DPMS", drm_dpms_enum_list,
1049 ARRAY_SIZE(drm_dpms_enum_list));
1050 dev->mode_config.dpms_property = dpms;
1056 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
1059 * Called by a driver the first time a DVI-I connector is made.
1061 int drm_mode_create_dvi_i_properties(struct drm_device *dev)
1063 struct drm_property *dvi_i_selector;
1064 struct drm_property *dvi_i_subconnector;
1066 if (dev->mode_config.dvi_i_select_subconnector_property)
1070 drm_property_create_enum(dev, 0,
1071 "select subconnector",
1072 drm_dvi_i_select_enum_list,
1073 ARRAY_SIZE(drm_dvi_i_select_enum_list));
1074 dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
1076 dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
1078 drm_dvi_i_subconnector_enum_list,
1079 ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
1080 dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
1084 EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
1087 * drm_create_tv_properties - create TV specific connector properties
1089 * @num_modes: number of different TV formats (modes) supported
1090 * @modes: array of pointers to strings containing name of each format
1092 * Called by a driver's TV initialization routine, this function creates
1093 * the TV specific connector properties for a given device. Caller is
1094 * responsible for allocating a list of format names and passing them to
1097 int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
1100 struct drm_property *tv_selector;
1101 struct drm_property *tv_subconnector;
1104 if (dev->mode_config.tv_select_subconnector_property)
1108 * Basic connector properties
1110 tv_selector = drm_property_create_enum(dev, 0,
1111 "select subconnector",
1112 drm_tv_select_enum_list,
1113 ARRAY_SIZE(drm_tv_select_enum_list));
1114 dev->mode_config.tv_select_subconnector_property = tv_selector;
1117 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
1119 drm_tv_subconnector_enum_list,
1120 ARRAY_SIZE(drm_tv_subconnector_enum_list));
1121 dev->mode_config.tv_subconnector_property = tv_subconnector;
1124 * Other, TV specific properties: margins & TV modes.
1126 dev->mode_config.tv_left_margin_property =
1127 drm_property_create_range(dev, 0, "left margin", 0, 100);
1129 dev->mode_config.tv_right_margin_property =
1130 drm_property_create_range(dev, 0, "right margin", 0, 100);
1132 dev->mode_config.tv_top_margin_property =
1133 drm_property_create_range(dev, 0, "top margin", 0, 100);
1135 dev->mode_config.tv_bottom_margin_property =
1136 drm_property_create_range(dev, 0, "bottom margin", 0, 100);
1138 dev->mode_config.tv_mode_property =
1139 drm_property_create(dev, DRM_MODE_PROP_ENUM,
1141 for (i = 0; i < num_modes; i++)
1142 drm_property_add_enum(dev->mode_config.tv_mode_property, i,
1145 dev->mode_config.tv_brightness_property =
1146 drm_property_create_range(dev, 0, "brightness", 0, 100);
1148 dev->mode_config.tv_contrast_property =
1149 drm_property_create_range(dev, 0, "contrast", 0, 100);
1151 dev->mode_config.tv_flicker_reduction_property =
1152 drm_property_create_range(dev, 0, "flicker reduction", 0, 100);
1154 dev->mode_config.tv_overscan_property =
1155 drm_property_create_range(dev, 0, "overscan", 0, 100);
1157 dev->mode_config.tv_saturation_property =
1158 drm_property_create_range(dev, 0, "saturation", 0, 100);
1160 dev->mode_config.tv_hue_property =
1161 drm_property_create_range(dev, 0, "hue", 0, 100);
1165 EXPORT_SYMBOL(drm_mode_create_tv_properties);
1168 * drm_mode_create_scaling_mode_property - create scaling mode property
1171 * Called by a driver the first time it's needed, must be attached to desired
1174 int drm_mode_create_scaling_mode_property(struct drm_device *dev)
1176 struct drm_property *scaling_mode;
1178 if (dev->mode_config.scaling_mode_property)
1182 drm_property_create_enum(dev, 0, "scaling mode",
1183 drm_scaling_mode_enum_list,
1184 ARRAY_SIZE(drm_scaling_mode_enum_list));
1186 dev->mode_config.scaling_mode_property = scaling_mode;
1190 EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
1193 * drm_mode_create_dirty_property - create dirty property
1196 * Called by a driver the first time it's needed, must be attached to desired
1199 int drm_mode_create_dirty_info_property(struct drm_device *dev)
1201 struct drm_property *dirty_info;
1203 if (dev->mode_config.dirty_info_property)
1207 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
1209 drm_dirty_info_enum_list,
1210 ARRAY_SIZE(drm_dirty_info_enum_list));
1211 dev->mode_config.dirty_info_property = dirty_info;
1215 EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
1217 static int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
1219 uint32_t total_objects = 0;
1221 total_objects += dev->mode_config.num_crtc;
1222 total_objects += dev->mode_config.num_connector;
1223 total_objects += dev->mode_config.num_encoder;
1224 total_objects += dev->mode_config.num_bridge;
1226 group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
1227 if (!group->id_list)
1230 group->num_crtcs = 0;
1231 group->num_connectors = 0;
1232 group->num_encoders = 0;
1233 group->num_bridges = 0;
1237 int drm_mode_group_init_legacy_group(struct drm_device *dev,
1238 struct drm_mode_group *group)
1240 struct drm_crtc *crtc;
1241 struct drm_encoder *encoder;
1242 struct drm_connector *connector;
1243 struct drm_bridge *bridge;
1246 if ((ret = drm_mode_group_init(dev, group)))
1249 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
1250 group->id_list[group->num_crtcs++] = crtc->base.id;
1252 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
1253 group->id_list[group->num_crtcs + group->num_encoders++] =
1256 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
1257 group->id_list[group->num_crtcs + group->num_encoders +
1258 group->num_connectors++] = connector->base.id;
1260 list_for_each_entry(bridge, &dev->mode_config.bridge_list, head)
1261 group->id_list[group->num_crtcs + group->num_encoders +
1262 group->num_connectors + group->num_bridges++] =
1267 EXPORT_SYMBOL(drm_mode_group_init_legacy_group);
1270 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
1271 * @out: drm_mode_modeinfo struct to return to the user
1272 * @in: drm_display_mode to use
1274 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
1277 static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
1278 const struct drm_display_mode *in)
1280 WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX ||
1281 in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX ||
1282 in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX ||
1283 in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX ||
1284 in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX,
1285 "timing values too large for mode info\n");
1287 out->clock = in->clock;
1288 out->hdisplay = in->hdisplay;
1289 out->hsync_start = in->hsync_start;
1290 out->hsync_end = in->hsync_end;
1291 out->htotal = in->htotal;
1292 out->hskew = in->hskew;
1293 out->vdisplay = in->vdisplay;
1294 out->vsync_start = in->vsync_start;
1295 out->vsync_end = in->vsync_end;
1296 out->vtotal = in->vtotal;
1297 out->vscan = in->vscan;
1298 out->vrefresh = in->vrefresh;
1299 out->flags = in->flags;
1300 out->type = in->type;
1301 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1302 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1306 * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
1307 * @out: drm_display_mode to return to the user
1308 * @in: drm_mode_modeinfo to use
1310 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
1314 * Zero on success, errno on failure.
1316 static int drm_crtc_convert_umode(struct drm_display_mode *out,
1317 const struct drm_mode_modeinfo *in)
1319 if (in->clock > INT_MAX || in->vrefresh > INT_MAX)
1322 out->clock = in->clock;
1323 out->hdisplay = in->hdisplay;
1324 out->hsync_start = in->hsync_start;
1325 out->hsync_end = in->hsync_end;
1326 out->htotal = in->htotal;
1327 out->hskew = in->hskew;
1328 out->vdisplay = in->vdisplay;
1329 out->vsync_start = in->vsync_start;
1330 out->vsync_end = in->vsync_end;
1331 out->vtotal = in->vtotal;
1332 out->vscan = in->vscan;
1333 out->vrefresh = in->vrefresh;
1334 out->flags = in->flags;
1335 out->type = in->type;
1336 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1337 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1343 * drm_mode_getresources - get graphics configuration
1344 * @dev: drm device for the ioctl
1345 * @data: data pointer for the ioctl
1346 * @file_priv: drm file for the ioctl call
1348 * Construct a set of configuration description structures and return
1349 * them to the user, including CRTC, connector and framebuffer configuration.
1351 * Called by the user via ioctl.
1354 * Zero on success, errno on failure.
1356 int drm_mode_getresources(struct drm_device *dev, void *data,
1357 struct drm_file *file_priv)
1359 struct drm_mode_card_res *card_res = data;
1360 struct list_head *lh;
1361 struct drm_framebuffer *fb;
1362 struct drm_connector *connector;
1363 struct drm_crtc *crtc;
1364 struct drm_encoder *encoder;
1366 int connector_count = 0;
1369 int encoder_count = 0;
1371 uint32_t __user *fb_id;
1372 uint32_t __user *crtc_id;
1373 uint32_t __user *connector_id;
1374 uint32_t __user *encoder_id;
1375 struct drm_mode_group *mode_group;
1377 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1381 mutex_lock(&file_priv->fbs_lock);
1383 * For the non-control nodes we need to limit the list of resources
1384 * by IDs in the group list for this node
1386 list_for_each(lh, &file_priv->fbs)
1389 /* handle this in 4 parts */
1391 if (card_res->count_fbs >= fb_count) {
1393 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
1394 list_for_each_entry(fb, &file_priv->fbs, filp_head) {
1395 if (put_user(fb->base.id, fb_id + copied)) {
1396 mutex_unlock(&file_priv->fbs_lock);
1402 card_res->count_fbs = fb_count;
1403 mutex_unlock(&file_priv->fbs_lock);
1405 drm_modeset_lock_all(dev);
1406 mode_group = &file_priv->master->minor->mode_group;
1407 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1409 list_for_each(lh, &dev->mode_config.crtc_list)
1412 list_for_each(lh, &dev->mode_config.connector_list)
1415 list_for_each(lh, &dev->mode_config.encoder_list)
1419 crtc_count = mode_group->num_crtcs;
1420 connector_count = mode_group->num_connectors;
1421 encoder_count = mode_group->num_encoders;
1424 card_res->max_height = dev->mode_config.max_height;
1425 card_res->min_height = dev->mode_config.min_height;
1426 card_res->max_width = dev->mode_config.max_width;
1427 card_res->min_width = dev->mode_config.min_width;
1430 if (card_res->count_crtcs >= crtc_count) {
1432 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
1433 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1434 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1436 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
1437 if (put_user(crtc->base.id, crtc_id + copied)) {
1444 for (i = 0; i < mode_group->num_crtcs; i++) {
1445 if (put_user(mode_group->id_list[i],
1446 crtc_id + copied)) {
1454 card_res->count_crtcs = crtc_count;
1457 if (card_res->count_encoders >= encoder_count) {
1459 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
1460 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1461 list_for_each_entry(encoder,
1462 &dev->mode_config.encoder_list,
1464 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id,
1465 drm_get_encoder_name(encoder));
1466 if (put_user(encoder->base.id, encoder_id +
1474 for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
1475 if (put_user(mode_group->id_list[i],
1476 encoder_id + copied)) {
1485 card_res->count_encoders = encoder_count;
1488 if (card_res->count_connectors >= connector_count) {
1490 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
1491 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1492 list_for_each_entry(connector,
1493 &dev->mode_config.connector_list,
1495 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1497 drm_get_connector_name(connector));
1498 if (put_user(connector->base.id,
1499 connector_id + copied)) {
1506 int start = mode_group->num_crtcs +
1507 mode_group->num_encoders;
1508 for (i = start; i < start + mode_group->num_connectors; i++) {
1509 if (put_user(mode_group->id_list[i],
1510 connector_id + copied)) {
1518 card_res->count_connectors = connector_count;
1520 DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs,
1521 card_res->count_connectors, card_res->count_encoders);
1524 drm_modeset_unlock_all(dev);
1529 * drm_mode_getcrtc - get CRTC configuration
1530 * @dev: drm device for the ioctl
1531 * @data: data pointer for the ioctl
1532 * @file_priv: drm file for the ioctl call
1534 * Construct a CRTC configuration structure to return to the user.
1536 * Called by the user via ioctl.
1539 * Zero on success, errno on failure.
1541 int drm_mode_getcrtc(struct drm_device *dev,
1542 void *data, struct drm_file *file_priv)
1544 struct drm_mode_crtc *crtc_resp = data;
1545 struct drm_crtc *crtc;
1546 struct drm_mode_object *obj;
1549 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1552 drm_modeset_lock_all(dev);
1554 obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
1555 DRM_MODE_OBJECT_CRTC);
1560 crtc = obj_to_crtc(obj);
1562 crtc_resp->x = crtc->x;
1563 crtc_resp->y = crtc->y;
1564 crtc_resp->gamma_size = crtc->gamma_size;
1566 crtc_resp->fb_id = crtc->fb->base.id;
1568 crtc_resp->fb_id = 0;
1570 if (crtc->enabled) {
1572 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1573 crtc_resp->mode_valid = 1;
1576 crtc_resp->mode_valid = 0;
1580 drm_modeset_unlock_all(dev);
1584 static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode,
1585 const struct drm_file *file_priv)
1588 * If user-space hasn't configured the driver to expose the stereo 3D
1589 * modes, don't expose them.
1591 if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode))
1598 * drm_mode_getconnector - get connector configuration
1599 * @dev: drm device for the ioctl
1600 * @data: data pointer for the ioctl
1601 * @file_priv: drm file for the ioctl call
1603 * Construct a connector configuration structure to return to the user.
1605 * Called by the user via ioctl.
1608 * Zero on success, errno on failure.
1610 int drm_mode_getconnector(struct drm_device *dev, void *data,
1611 struct drm_file *file_priv)
1613 struct drm_mode_get_connector *out_resp = data;
1614 struct drm_mode_object *obj;
1615 struct drm_connector *connector;
1616 struct drm_display_mode *mode;
1618 int props_count = 0;
1619 int encoders_count = 0;
1623 struct drm_mode_modeinfo u_mode;
1624 struct drm_mode_modeinfo __user *mode_ptr;
1625 uint32_t __user *prop_ptr;
1626 uint64_t __user *prop_values;
1627 uint32_t __user *encoder_ptr;
1629 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1632 memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1634 DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);
1636 mutex_lock(&dev->mode_config.mutex);
1638 obj = drm_mode_object_find(dev, out_resp->connector_id,
1639 DRM_MODE_OBJECT_CONNECTOR);
1644 connector = obj_to_connector(obj);
1646 props_count = connector->properties.count;
1648 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1649 if (connector->encoder_ids[i] != 0) {
1654 if (out_resp->count_modes == 0) {
1655 connector->funcs->fill_modes(connector,
1656 dev->mode_config.max_width,
1657 dev->mode_config.max_height);
1660 /* delayed so we get modes regardless of pre-fill_modes state */
1661 list_for_each_entry(mode, &connector->modes, head)
1662 if (drm_mode_expose_to_userspace(mode, file_priv))
1665 out_resp->connector_id = connector->base.id;
1666 out_resp->connector_type = connector->connector_type;
1667 out_resp->connector_type_id = connector->connector_type_id;
1668 out_resp->mm_width = connector->display_info.width_mm;
1669 out_resp->mm_height = connector->display_info.height_mm;
1670 out_resp->subpixel = connector->display_info.subpixel_order;
1671 out_resp->connection = connector->status;
1672 if (connector->encoder)
1673 out_resp->encoder_id = connector->encoder->base.id;
1675 out_resp->encoder_id = 0;
1678 * This ioctl is called twice, once to determine how much space is
1679 * needed, and the 2nd time to fill it.
1681 if ((out_resp->count_modes >= mode_count) && mode_count) {
1683 mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr;
1684 list_for_each_entry(mode, &connector->modes, head) {
1685 if (!drm_mode_expose_to_userspace(mode, file_priv))
1688 drm_crtc_convert_to_umode(&u_mode, mode);
1689 if (copy_to_user(mode_ptr + copied,
1690 &u_mode, sizeof(u_mode))) {
1697 out_resp->count_modes = mode_count;
1699 if ((out_resp->count_props >= props_count) && props_count) {
1701 prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr);
1702 prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr);
1703 for (i = 0; i < connector->properties.count; i++) {
1704 if (put_user(connector->properties.ids[i],
1705 prop_ptr + copied)) {
1710 if (put_user(connector->properties.values[i],
1711 prop_values + copied)) {
1718 out_resp->count_props = props_count;
1720 if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
1722 encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr);
1723 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1724 if (connector->encoder_ids[i] != 0) {
1725 if (put_user(connector->encoder_ids[i],
1726 encoder_ptr + copied)) {
1734 out_resp->count_encoders = encoders_count;
1737 mutex_unlock(&dev->mode_config.mutex);
1742 int drm_mode_getencoder(struct drm_device *dev, void *data,
1743 struct drm_file *file_priv)
1745 struct drm_mode_get_encoder *enc_resp = data;
1746 struct drm_mode_object *obj;
1747 struct drm_encoder *encoder;
1750 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1753 drm_modeset_lock_all(dev);
1754 obj = drm_mode_object_find(dev, enc_resp->encoder_id,
1755 DRM_MODE_OBJECT_ENCODER);
1760 encoder = obj_to_encoder(obj);
1763 enc_resp->crtc_id = encoder->crtc->base.id;
1765 enc_resp->crtc_id = 0;
1766 enc_resp->encoder_type = encoder->encoder_type;
1767 enc_resp->encoder_id = encoder->base.id;
1768 enc_resp->possible_crtcs = encoder->possible_crtcs;
1769 enc_resp->possible_clones = encoder->possible_clones;
1772 drm_modeset_unlock_all(dev);
1777 * drm_mode_getplane_res - get plane info
1780 * @file_priv: DRM file info
1782 * Return an plane count and set of IDs.
1784 int drm_mode_getplane_res(struct drm_device *dev, void *data,
1785 struct drm_file *file_priv)
1787 struct drm_mode_get_plane_res *plane_resp = data;
1788 struct drm_mode_config *config;
1789 struct drm_plane *plane;
1790 uint32_t __user *plane_ptr;
1791 int copied = 0, ret = 0;
1793 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1796 drm_modeset_lock_all(dev);
1797 config = &dev->mode_config;
1800 * This ioctl is called twice, once to determine how much space is
1801 * needed, and the 2nd time to fill it.
1803 if (config->num_plane &&
1804 (plane_resp->count_planes >= config->num_plane)) {
1805 plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr;
1807 list_for_each_entry(plane, &config->plane_list, head) {
1808 if (put_user(plane->base.id, plane_ptr + copied)) {
1815 plane_resp->count_planes = config->num_plane;
1818 drm_modeset_unlock_all(dev);
1823 * drm_mode_getplane - get plane info
1826 * @file_priv: DRM file info
1828 * Return plane info, including formats supported, gamma size, any
1831 int drm_mode_getplane(struct drm_device *dev, void *data,
1832 struct drm_file *file_priv)
1834 struct drm_mode_get_plane *plane_resp = data;
1835 struct drm_mode_object *obj;
1836 struct drm_plane *plane;
1837 uint32_t __user *format_ptr;
1840 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1843 drm_modeset_lock_all(dev);
1844 obj = drm_mode_object_find(dev, plane_resp->plane_id,
1845 DRM_MODE_OBJECT_PLANE);
1850 plane = obj_to_plane(obj);
1853 plane_resp->crtc_id = plane->crtc->base.id;
1855 plane_resp->crtc_id = 0;
1858 plane_resp->fb_id = plane->fb->base.id;
1860 plane_resp->fb_id = 0;
1862 plane_resp->plane_id = plane->base.id;
1863 plane_resp->possible_crtcs = plane->possible_crtcs;
1864 plane_resp->gamma_size = 0;
1867 * This ioctl is called twice, once to determine how much space is
1868 * needed, and the 2nd time to fill it.
1870 if (plane->format_count &&
1871 (plane_resp->count_format_types >= plane->format_count)) {
1872 format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr;
1873 if (copy_to_user(format_ptr,
1874 plane->format_types,
1875 sizeof(uint32_t) * plane->format_count)) {
1880 plane_resp->count_format_types = plane->format_count;
1883 drm_modeset_unlock_all(dev);
1888 * drm_mode_setplane - set up or tear down an plane
1890 * @data: ioctl data*
1891 * @file_priv: DRM file info
1893 * Set plane info, including placement, fb, scaling, and other factors.
1894 * Or pass a NULL fb to disable.
1896 int drm_mode_setplane(struct drm_device *dev, void *data,
1897 struct drm_file *file_priv)
1899 struct drm_mode_set_plane *plane_req = data;
1900 struct drm_mode_object *obj;
1901 struct drm_plane *plane;
1902 struct drm_crtc *crtc;
1903 struct drm_framebuffer *fb = NULL, *old_fb = NULL;
1905 unsigned int fb_width, fb_height;
1908 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1912 * First, find the plane, crtc, and fb objects. If not available,
1913 * we don't bother to call the driver.
1915 obj = drm_mode_object_find(dev, plane_req->plane_id,
1916 DRM_MODE_OBJECT_PLANE);
1918 DRM_DEBUG_KMS("Unknown plane ID %d\n",
1919 plane_req->plane_id);
1922 plane = obj_to_plane(obj);
1924 /* No fb means shut it down */
1925 if (!plane_req->fb_id) {
1926 drm_modeset_lock_all(dev);
1928 plane->funcs->disable_plane(plane);
1931 drm_modeset_unlock_all(dev);
1935 obj = drm_mode_object_find(dev, plane_req->crtc_id,
1936 DRM_MODE_OBJECT_CRTC);
1938 DRM_DEBUG_KMS("Unknown crtc ID %d\n",
1939 plane_req->crtc_id);
1943 crtc = obj_to_crtc(obj);
1945 fb = drm_framebuffer_lookup(dev, plane_req->fb_id);
1947 DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
1953 /* Check whether this plane supports the fb pixel format. */
1954 for (i = 0; i < plane->format_count; i++)
1955 if (fb->pixel_format == plane->format_types[i])
1957 if (i == plane->format_count) {
1958 DRM_DEBUG_KMS("Invalid pixel format %s\n",
1959 drm_get_format_name(fb->pixel_format));
1964 fb_width = fb->width << 16;
1965 fb_height = fb->height << 16;
1967 /* Make sure source coordinates are inside the fb. */
1968 if (plane_req->src_w > fb_width ||
1969 plane_req->src_x > fb_width - plane_req->src_w ||
1970 plane_req->src_h > fb_height ||
1971 plane_req->src_y > fb_height - plane_req->src_h) {
1972 DRM_DEBUG_KMS("Invalid source coordinates "
1973 "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
1974 plane_req->src_w >> 16,
1975 ((plane_req->src_w & 0xffff) * 15625) >> 10,
1976 plane_req->src_h >> 16,
1977 ((plane_req->src_h & 0xffff) * 15625) >> 10,
1978 plane_req->src_x >> 16,
1979 ((plane_req->src_x & 0xffff) * 15625) >> 10,
1980 plane_req->src_y >> 16,
1981 ((plane_req->src_y & 0xffff) * 15625) >> 10);
1986 /* Give drivers some help against integer overflows */
1987 if (plane_req->crtc_w > INT_MAX ||
1988 plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w ||
1989 plane_req->crtc_h > INT_MAX ||
1990 plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) {
1991 DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
1992 plane_req->crtc_w, plane_req->crtc_h,
1993 plane_req->crtc_x, plane_req->crtc_y);
1998 drm_modeset_lock_all(dev);
1999 ret = plane->funcs->update_plane(plane, crtc, fb,
2000 plane_req->crtc_x, plane_req->crtc_y,
2001 plane_req->crtc_w, plane_req->crtc_h,
2002 plane_req->src_x, plane_req->src_y,
2003 plane_req->src_w, plane_req->src_h);
2010 drm_modeset_unlock_all(dev);
2014 drm_framebuffer_unreference(fb);
2016 drm_framebuffer_unreference(old_fb);
2022 * drm_mode_set_config_internal - helper to call ->set_config
2023 * @set: modeset config to set
2025 * This is a little helper to wrap internal calls to the ->set_config driver
2026 * interface. The only thing it adds is correct refcounting dance.
2028 int drm_mode_set_config_internal(struct drm_mode_set *set)
2030 struct drm_crtc *crtc = set->crtc;
2031 struct drm_framebuffer *fb;
2032 struct drm_crtc *tmp;
2036 * NOTE: ->set_config can also disable other crtcs (if we steal all
2037 * connectors from it), hence we need to refcount the fbs across all
2038 * crtcs. Atomic modeset will have saner semantics ...
2040 list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head)
2041 tmp->old_fb = tmp->fb;
2045 ret = crtc->funcs->set_config(set);
2047 /* crtc->fb must be updated by ->set_config, enforces this. */
2048 WARN_ON(fb != crtc->fb);
2051 list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) {
2053 drm_framebuffer_reference(tmp->fb);
2055 drm_framebuffer_unreference(tmp->old_fb);
2060 EXPORT_SYMBOL(drm_mode_set_config_internal);
2063 * Checks that the framebuffer is big enough for the CRTC viewport
2064 * (x, y, hdisplay, vdisplay)
2066 static int drm_crtc_check_viewport(const struct drm_crtc *crtc,
2068 const struct drm_display_mode *mode,
2069 const struct drm_framebuffer *fb)
2072 int hdisplay, vdisplay;
2074 hdisplay = mode->hdisplay;
2075 vdisplay = mode->vdisplay;
2077 if (drm_mode_is_stereo(mode)) {
2078 struct drm_display_mode adjusted = *mode;
2080 drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE);
2081 hdisplay = adjusted.crtc_hdisplay;
2082 vdisplay = adjusted.crtc_vdisplay;
2085 if (crtc->invert_dimensions)
2086 swap(hdisplay, vdisplay);
2088 if (hdisplay > fb->width ||
2089 vdisplay > fb->height ||
2090 x > fb->width - hdisplay ||
2091 y > fb->height - vdisplay) {
2092 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
2093 fb->width, fb->height, hdisplay, vdisplay, x, y,
2094 crtc->invert_dimensions ? " (inverted)" : "");
2102 * drm_mode_setcrtc - set CRTC configuration
2103 * @dev: drm device for the ioctl
2104 * @data: data pointer for the ioctl
2105 * @file_priv: drm file for the ioctl call
2107 * Build a new CRTC configuration based on user request.
2109 * Called by the user via ioctl.
2112 * Zero on success, errno on failure.
2114 int drm_mode_setcrtc(struct drm_device *dev, void *data,
2115 struct drm_file *file_priv)
2117 struct drm_mode_config *config = &dev->mode_config;
2118 struct drm_mode_crtc *crtc_req = data;
2119 struct drm_mode_object *obj;
2120 struct drm_crtc *crtc;
2121 struct drm_connector **connector_set = NULL, *connector;
2122 struct drm_framebuffer *fb = NULL;
2123 struct drm_display_mode *mode = NULL;
2124 struct drm_mode_set set;
2125 uint32_t __user *set_connectors_ptr;
2129 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2132 /* For some reason crtc x/y offsets are signed internally. */
2133 if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX)
2136 drm_modeset_lock_all(dev);
2137 obj = drm_mode_object_find(dev, crtc_req->crtc_id,
2138 DRM_MODE_OBJECT_CRTC);
2140 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
2144 crtc = obj_to_crtc(obj);
2145 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
2147 if (crtc_req->mode_valid) {
2148 /* If we have a mode we need a framebuffer. */
2149 /* If we pass -1, set the mode with the currently bound fb */
2150 if (crtc_req->fb_id == -1) {
2152 DRM_DEBUG_KMS("CRTC doesn't have current FB\n");
2157 /* Make refcounting symmetric with the lookup path. */
2158 drm_framebuffer_reference(fb);
2160 fb = drm_framebuffer_lookup(dev, crtc_req->fb_id);
2162 DRM_DEBUG_KMS("Unknown FB ID%d\n",
2169 mode = drm_mode_create(dev);
2175 ret = drm_crtc_convert_umode(mode, &crtc_req->mode);
2177 DRM_DEBUG_KMS("Invalid mode\n");
2181 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
2183 ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y,
2190 if (crtc_req->count_connectors == 0 && mode) {
2191 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
2196 if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
2197 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
2198 crtc_req->count_connectors);
2203 if (crtc_req->count_connectors > 0) {
2206 /* Avoid unbounded kernel memory allocation */
2207 if (crtc_req->count_connectors > config->num_connector) {
2212 connector_set = kmalloc(crtc_req->count_connectors *
2213 sizeof(struct drm_connector *),
2215 if (!connector_set) {
2220 for (i = 0; i < crtc_req->count_connectors; i++) {
2221 set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr;
2222 if (get_user(out_id, &set_connectors_ptr[i])) {
2227 obj = drm_mode_object_find(dev, out_id,
2228 DRM_MODE_OBJECT_CONNECTOR);
2230 DRM_DEBUG_KMS("Connector id %d unknown\n",
2235 connector = obj_to_connector(obj);
2236 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
2238 drm_get_connector_name(connector));
2240 connector_set[i] = connector;
2245 set.x = crtc_req->x;
2246 set.y = crtc_req->y;
2248 set.connectors = connector_set;
2249 set.num_connectors = crtc_req->count_connectors;
2251 ret = drm_mode_set_config_internal(&set);
2255 drm_framebuffer_unreference(fb);
2257 kfree(connector_set);
2258 drm_mode_destroy(dev, mode);
2259 drm_modeset_unlock_all(dev);
2263 static int drm_mode_cursor_common(struct drm_device *dev,
2264 struct drm_mode_cursor2 *req,
2265 struct drm_file *file_priv)
2267 struct drm_mode_object *obj;
2268 struct drm_crtc *crtc;
2271 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2274 if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags))
2277 obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
2279 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
2282 crtc = obj_to_crtc(obj);
2284 mutex_lock(&crtc->mutex);
2285 if (req->flags & DRM_MODE_CURSOR_BO) {
2286 if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) {
2290 /* Turns off the cursor if handle is 0 */
2291 if (crtc->funcs->cursor_set2)
2292 ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle,
2293 req->width, req->height, req->hot_x, req->hot_y);
2295 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
2296 req->width, req->height);
2299 if (req->flags & DRM_MODE_CURSOR_MOVE) {
2300 if (crtc->funcs->cursor_move) {
2301 ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
2308 mutex_unlock(&crtc->mutex);
2313 int drm_mode_cursor_ioctl(struct drm_device *dev,
2314 void *data, struct drm_file *file_priv)
2316 struct drm_mode_cursor *req = data;
2317 struct drm_mode_cursor2 new_req;
2319 memcpy(&new_req, req, sizeof(struct drm_mode_cursor));
2320 new_req.hot_x = new_req.hot_y = 0;
2322 return drm_mode_cursor_common(dev, &new_req, file_priv);
2325 int drm_mode_cursor2_ioctl(struct drm_device *dev,
2326 void *data, struct drm_file *file_priv)
2328 struct drm_mode_cursor2 *req = data;
2329 return drm_mode_cursor_common(dev, req, file_priv);
2332 /* Original addfb only supported RGB formats, so figure out which one */
2333 uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth)
2339 fmt = DRM_FORMAT_C8;
2343 fmt = DRM_FORMAT_XRGB1555;
2345 fmt = DRM_FORMAT_RGB565;
2348 fmt = DRM_FORMAT_RGB888;
2352 fmt = DRM_FORMAT_XRGB8888;
2353 else if (depth == 30)
2354 fmt = DRM_FORMAT_XRGB2101010;
2356 fmt = DRM_FORMAT_ARGB8888;
2359 DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n");
2360 fmt = DRM_FORMAT_XRGB8888;
2366 EXPORT_SYMBOL(drm_mode_legacy_fb_format);
2369 * drm_mode_addfb - add an FB to the graphics configuration
2370 * @dev: drm device for the ioctl
2371 * @data: data pointer for the ioctl
2372 * @file_priv: drm file for the ioctl call
2374 * Add a new FB to the specified CRTC, given a user request.
2376 * Called by the user via ioctl.
2379 * Zero on success, errno on failure.
2381 int drm_mode_addfb(struct drm_device *dev,
2382 void *data, struct drm_file *file_priv)
2384 struct drm_mode_fb_cmd *or = data;
2385 struct drm_mode_fb_cmd2 r = {};
2386 struct drm_mode_config *config = &dev->mode_config;
2387 struct drm_framebuffer *fb;
2390 /* Use new struct with format internally */
2391 r.fb_id = or->fb_id;
2392 r.width = or->width;
2393 r.height = or->height;
2394 r.pitches[0] = or->pitch;
2395 r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth);
2396 r.handles[0] = or->handle;
2398 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2401 if ((config->min_width > r.width) || (r.width > config->max_width))
2404 if ((config->min_height > r.height) || (r.height > config->max_height))
2407 fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r);
2409 DRM_DEBUG_KMS("could not create framebuffer\n");
2413 mutex_lock(&file_priv->fbs_lock);
2414 or->fb_id = fb->base.id;
2415 list_add(&fb->filp_head, &file_priv->fbs);
2416 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
2417 mutex_unlock(&file_priv->fbs_lock);
2422 static int format_check(const struct drm_mode_fb_cmd2 *r)
2424 uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN;
2428 case DRM_FORMAT_RGB332:
2429 case DRM_FORMAT_BGR233:
2430 case DRM_FORMAT_XRGB4444:
2431 case DRM_FORMAT_XBGR4444:
2432 case DRM_FORMAT_RGBX4444:
2433 case DRM_FORMAT_BGRX4444:
2434 case DRM_FORMAT_ARGB4444:
2435 case DRM_FORMAT_ABGR4444:
2436 case DRM_FORMAT_RGBA4444:
2437 case DRM_FORMAT_BGRA4444:
2438 case DRM_FORMAT_XRGB1555:
2439 case DRM_FORMAT_XBGR1555:
2440 case DRM_FORMAT_RGBX5551:
2441 case DRM_FORMAT_BGRX5551:
2442 case DRM_FORMAT_ARGB1555:
2443 case DRM_FORMAT_ABGR1555:
2444 case DRM_FORMAT_RGBA5551:
2445 case DRM_FORMAT_BGRA5551:
2446 case DRM_FORMAT_RGB565:
2447 case DRM_FORMAT_BGR565:
2448 case DRM_FORMAT_RGB888:
2449 case DRM_FORMAT_BGR888:
2450 case DRM_FORMAT_XRGB8888:
2451 case DRM_FORMAT_XBGR8888:
2452 case DRM_FORMAT_RGBX8888:
2453 case DRM_FORMAT_BGRX8888:
2454 case DRM_FORMAT_ARGB8888:
2455 case DRM_FORMAT_ABGR8888:
2456 case DRM_FORMAT_RGBA8888:
2457 case DRM_FORMAT_BGRA8888:
2458 case DRM_FORMAT_XRGB2101010:
2459 case DRM_FORMAT_XBGR2101010:
2460 case DRM_FORMAT_RGBX1010102:
2461 case DRM_FORMAT_BGRX1010102:
2462 case DRM_FORMAT_ARGB2101010:
2463 case DRM_FORMAT_ABGR2101010:
2464 case DRM_FORMAT_RGBA1010102:
2465 case DRM_FORMAT_BGRA1010102:
2466 case DRM_FORMAT_YUYV:
2467 case DRM_FORMAT_YVYU:
2468 case DRM_FORMAT_UYVY:
2469 case DRM_FORMAT_VYUY:
2470 case DRM_FORMAT_AYUV:
2471 case DRM_FORMAT_NV12:
2472 case DRM_FORMAT_NV21:
2473 case DRM_FORMAT_NV16:
2474 case DRM_FORMAT_NV61:
2475 case DRM_FORMAT_NV24:
2476 case DRM_FORMAT_NV42:
2477 case DRM_FORMAT_YUV410:
2478 case DRM_FORMAT_YVU410:
2479 case DRM_FORMAT_YUV411:
2480 case DRM_FORMAT_YVU411:
2481 case DRM_FORMAT_YUV420:
2482 case DRM_FORMAT_YVU420:
2483 case DRM_FORMAT_YUV422:
2484 case DRM_FORMAT_YVU422:
2485 case DRM_FORMAT_YUV444:
2486 case DRM_FORMAT_YVU444:
2493 static int framebuffer_check(const struct drm_mode_fb_cmd2 *r)
2495 int ret, hsub, vsub, num_planes, i;
2497 ret = format_check(r);
2499 DRM_DEBUG_KMS("bad framebuffer format %s\n",
2500 drm_get_format_name(r->pixel_format));
2504 hsub = drm_format_horz_chroma_subsampling(r->pixel_format);
2505 vsub = drm_format_vert_chroma_subsampling(r->pixel_format);
2506 num_planes = drm_format_num_planes(r->pixel_format);
2508 if (r->width == 0 || r->width % hsub) {
2509 DRM_DEBUG_KMS("bad framebuffer width %u\n", r->height);
2513 if (r->height == 0 || r->height % vsub) {
2514 DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height);
2518 for (i = 0; i < num_planes; i++) {
2519 unsigned int width = r->width / (i != 0 ? hsub : 1);
2520 unsigned int height = r->height / (i != 0 ? vsub : 1);
2521 unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i);
2523 if (!r->handles[i]) {
2524 DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i);
2528 if ((uint64_t) width * cpp > UINT_MAX)
2531 if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX)
2534 if (r->pitches[i] < width * cpp) {
2535 DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i);
2544 * drm_mode_addfb2 - add an FB to the graphics configuration
2545 * @dev: drm device for the ioctl
2546 * @data: data pointer for the ioctl
2547 * @file_priv: drm file for the ioctl call
2549 * Add a new FB to the specified CRTC, given a user request with format.
2551 * Called by the user via ioctl.
2554 * Zero on success, errno on failure.
2556 int drm_mode_addfb2(struct drm_device *dev,
2557 void *data, struct drm_file *file_priv)
2559 struct drm_mode_fb_cmd2 *r = data;
2560 struct drm_mode_config *config = &dev->mode_config;
2561 struct drm_framebuffer *fb;
2564 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2567 if (r->flags & ~DRM_MODE_FB_INTERLACED) {
2568 DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags);
2572 if ((config->min_width > r->width) || (r->width > config->max_width)) {
2573 DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n",
2574 r->width, config->min_width, config->max_width);
2577 if ((config->min_height > r->height) || (r->height > config->max_height)) {
2578 DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n",
2579 r->height, config->min_height, config->max_height);
2583 ret = framebuffer_check(r);
2587 fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
2589 DRM_DEBUG_KMS("could not create framebuffer\n");
2593 mutex_lock(&file_priv->fbs_lock);
2594 r->fb_id = fb->base.id;
2595 list_add(&fb->filp_head, &file_priv->fbs);
2596 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
2597 mutex_unlock(&file_priv->fbs_lock);
2604 * drm_mode_rmfb - remove an FB from the configuration
2605 * @dev: drm device for the ioctl
2606 * @data: data pointer for the ioctl
2607 * @file_priv: drm file for the ioctl call
2609 * Remove the FB specified by the user.
2611 * Called by the user via ioctl.
2614 * Zero on success, errno on failure.
2616 int drm_mode_rmfb(struct drm_device *dev,
2617 void *data, struct drm_file *file_priv)
2619 struct drm_framebuffer *fb = NULL;
2620 struct drm_framebuffer *fbl = NULL;
2621 uint32_t *id = data;
2624 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2627 mutex_lock(&file_priv->fbs_lock);
2628 mutex_lock(&dev->mode_config.fb_lock);
2629 fb = __drm_framebuffer_lookup(dev, *id);
2633 list_for_each_entry(fbl, &file_priv->fbs, filp_head)
2639 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
2640 __drm_framebuffer_unregister(dev, fb);
2642 list_del_init(&fb->filp_head);
2643 mutex_unlock(&dev->mode_config.fb_lock);
2644 mutex_unlock(&file_priv->fbs_lock);
2646 drm_framebuffer_remove(fb);
2651 mutex_unlock(&dev->mode_config.fb_lock);
2652 mutex_unlock(&file_priv->fbs_lock);
2658 * drm_mode_getfb - get FB info
2659 * @dev: drm device for the ioctl
2660 * @data: data pointer for the ioctl
2661 * @file_priv: drm file for the ioctl call
2663 * Lookup the FB given its ID and return info about it.
2665 * Called by the user via ioctl.
2668 * Zero on success, errno on failure.
2670 int drm_mode_getfb(struct drm_device *dev,
2671 void *data, struct drm_file *file_priv)
2673 struct drm_mode_fb_cmd *r = data;
2674 struct drm_framebuffer *fb;
2677 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2680 fb = drm_framebuffer_lookup(dev, r->fb_id);
2684 r->height = fb->height;
2685 r->width = fb->width;
2686 r->depth = fb->depth;
2687 r->bpp = fb->bits_per_pixel;
2688 r->pitch = fb->pitches[0];
2689 if (fb->funcs->create_handle) {
2690 if (file_priv->is_master || capable(CAP_SYS_ADMIN)) {
2691 ret = fb->funcs->create_handle(fb, file_priv,
2694 /* GET_FB() is an unprivileged ioctl so we must not
2695 * return a buffer-handle to non-master processes! For
2696 * backwards-compatibility reasons, we cannot make
2697 * GET_FB() privileged, so just return an invalid handle
2698 * for non-masters. */
2706 drm_framebuffer_unreference(fb);
2711 int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
2712 void *data, struct drm_file *file_priv)
2714 struct drm_clip_rect __user *clips_ptr;
2715 struct drm_clip_rect *clips = NULL;
2716 struct drm_mode_fb_dirty_cmd *r = data;
2717 struct drm_framebuffer *fb;
2722 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2725 fb = drm_framebuffer_lookup(dev, r->fb_id);
2729 num_clips = r->num_clips;
2730 clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr;
2732 if (!num_clips != !clips_ptr) {
2737 flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
2739 /* If userspace annotates copy, clips must come in pairs */
2740 if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
2745 if (num_clips && clips_ptr) {
2746 if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) {
2750 clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
2756 ret = copy_from_user(clips, clips_ptr,
2757 num_clips * sizeof(*clips));
2764 if (fb->funcs->dirty) {
2765 drm_modeset_lock_all(dev);
2766 ret = fb->funcs->dirty(fb, file_priv, flags, r->color,
2768 drm_modeset_unlock_all(dev);
2776 drm_framebuffer_unreference(fb);
2783 * drm_fb_release - remove and free the FBs on this file
2784 * @priv: drm file for the ioctl
2786 * Destroy all the FBs associated with @filp.
2788 * Called by the user via ioctl.
2791 * Zero on success, errno on failure.
2793 void drm_fb_release(struct drm_file *priv)
2795 struct drm_device *dev = priv->minor->dev;
2796 struct drm_framebuffer *fb, *tfb;
2798 mutex_lock(&priv->fbs_lock);
2799 list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
2801 mutex_lock(&dev->mode_config.fb_lock);
2802 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
2803 __drm_framebuffer_unregister(dev, fb);
2804 mutex_unlock(&dev->mode_config.fb_lock);
2806 list_del_init(&fb->filp_head);
2808 /* This will also drop the fpriv->fbs reference. */
2809 drm_framebuffer_remove(fb);
2811 mutex_unlock(&priv->fbs_lock);
2814 struct drm_property *drm_property_create(struct drm_device *dev, int flags,
2815 const char *name, int num_values)
2817 struct drm_property *property = NULL;
2820 property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
2825 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
2826 if (!property->values)
2830 ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
2834 property->flags = flags;
2835 property->num_values = num_values;
2836 INIT_LIST_HEAD(&property->enum_blob_list);
2839 strncpy(property->name, name, DRM_PROP_NAME_LEN);
2840 property->name[DRM_PROP_NAME_LEN-1] = '\0';
2843 list_add_tail(&property->head, &dev->mode_config.property_list);
2846 kfree(property->values);
2850 EXPORT_SYMBOL(drm_property_create);
2852 struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
2854 const struct drm_prop_enum_list *props,
2857 struct drm_property *property;
2860 flags |= DRM_MODE_PROP_ENUM;
2862 property = drm_property_create(dev, flags, name, num_values);
2866 for (i = 0; i < num_values; i++) {
2867 ret = drm_property_add_enum(property, i,
2871 drm_property_destroy(dev, property);
2878 EXPORT_SYMBOL(drm_property_create_enum);
2880 struct drm_property *drm_property_create_bitmask(struct drm_device *dev,
2881 int flags, const char *name,
2882 const struct drm_prop_enum_list *props,
2885 struct drm_property *property;
2888 flags |= DRM_MODE_PROP_BITMASK;
2890 property = drm_property_create(dev, flags, name, num_values);
2894 for (i = 0; i < num_values; i++) {
2895 ret = drm_property_add_enum(property, i,
2899 drm_property_destroy(dev, property);
2906 EXPORT_SYMBOL(drm_property_create_bitmask);
2908 struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
2910 uint64_t min, uint64_t max)
2912 struct drm_property *property;
2914 flags |= DRM_MODE_PROP_RANGE;
2916 property = drm_property_create(dev, flags, name, 2);
2920 property->values[0] = min;
2921 property->values[1] = max;
2925 EXPORT_SYMBOL(drm_property_create_range);
2927 int drm_property_add_enum(struct drm_property *property, int index,
2928 uint64_t value, const char *name)
2930 struct drm_property_enum *prop_enum;
2932 if (!(property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)))
2936 * Bitmask enum properties have the additional constraint of values
2939 if ((property->flags & DRM_MODE_PROP_BITMASK) && (value > 63))
2942 if (!list_empty(&property->enum_blob_list)) {
2943 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2944 if (prop_enum->value == value) {
2945 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2946 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2952 prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
2956 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2957 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2958 prop_enum->value = value;
2960 property->values[index] = value;
2961 list_add_tail(&prop_enum->head, &property->enum_blob_list);
2964 EXPORT_SYMBOL(drm_property_add_enum);
2966 void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
2968 struct drm_property_enum *prop_enum, *pt;
2970 list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
2971 list_del(&prop_enum->head);
2975 if (property->num_values)
2976 kfree(property->values);
2977 drm_mode_object_put(dev, &property->base);
2978 list_del(&property->head);
2981 EXPORT_SYMBOL(drm_property_destroy);
2983 void drm_object_attach_property(struct drm_mode_object *obj,
2984 struct drm_property *property,
2987 int count = obj->properties->count;
2989 if (count == DRM_OBJECT_MAX_PROPERTY) {
2990 WARN(1, "Failed to attach object property (type: 0x%x). Please "
2991 "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time "
2992 "you see this message on the same object type.\n",
2997 obj->properties->ids[count] = property->base.id;
2998 obj->properties->values[count] = init_val;
2999 obj->properties->count++;
3001 EXPORT_SYMBOL(drm_object_attach_property);
3003 int drm_object_property_set_value(struct drm_mode_object *obj,
3004 struct drm_property *property, uint64_t val)
3008 for (i = 0; i < obj->properties->count; i++) {
3009 if (obj->properties->ids[i] == property->base.id) {
3010 obj->properties->values[i] = val;
3017 EXPORT_SYMBOL(drm_object_property_set_value);
3019 int drm_object_property_get_value(struct drm_mode_object *obj,
3020 struct drm_property *property, uint64_t *val)
3024 for (i = 0; i < obj->properties->count; i++) {
3025 if (obj->properties->ids[i] == property->base.id) {
3026 *val = obj->properties->values[i];
3033 EXPORT_SYMBOL(drm_object_property_get_value);
3035 int drm_mode_getproperty_ioctl(struct drm_device *dev,
3036 void *data, struct drm_file *file_priv)
3038 struct drm_mode_object *obj;
3039 struct drm_mode_get_property *out_resp = data;
3040 struct drm_property *property;
3043 int value_count = 0;
3046 struct drm_property_enum *prop_enum;
3047 struct drm_mode_property_enum __user *enum_ptr;
3048 struct drm_property_blob *prop_blob;
3049 uint32_t __user *blob_id_ptr;
3050 uint64_t __user *values_ptr;
3051 uint32_t __user *blob_length_ptr;
3053 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3056 drm_modeset_lock_all(dev);
3057 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
3062 property = obj_to_property(obj);
3064 if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) {
3065 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
3067 } else if (property->flags & DRM_MODE_PROP_BLOB) {
3068 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
3072 value_count = property->num_values;
3074 strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
3075 out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
3076 out_resp->flags = property->flags;
3078 if ((out_resp->count_values >= value_count) && value_count) {
3079 values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr;
3080 for (i = 0; i < value_count; i++) {
3081 if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
3087 out_resp->count_values = value_count;
3089 if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) {
3090 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
3092 enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr;
3093 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
3095 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
3100 if (copy_to_user(&enum_ptr[copied].name,
3101 &prop_enum->name, DRM_PROP_NAME_LEN)) {
3108 out_resp->count_enum_blobs = enum_count;
3111 if (property->flags & DRM_MODE_PROP_BLOB) {
3112 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
3114 blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr;
3115 blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr;
3117 list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
3118 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
3123 if (put_user(prop_blob->length, blob_length_ptr + copied)) {
3131 out_resp->count_enum_blobs = blob_count;
3134 drm_modeset_unlock_all(dev);
3138 static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
3141 struct drm_property_blob *blob;
3144 if (!length || !data)
3147 blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
3151 ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
3157 blob->length = length;
3159 memcpy(blob->data, data, length);
3161 list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
3165 static void drm_property_destroy_blob(struct drm_device *dev,
3166 struct drm_property_blob *blob)
3168 drm_mode_object_put(dev, &blob->base);
3169 list_del(&blob->head);
3173 int drm_mode_getblob_ioctl(struct drm_device *dev,
3174 void *data, struct drm_file *file_priv)
3176 struct drm_mode_object *obj;
3177 struct drm_mode_get_blob *out_resp = data;
3178 struct drm_property_blob *blob;
3180 void __user *blob_ptr;
3182 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3185 drm_modeset_lock_all(dev);
3186 obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
3191 blob = obj_to_blob(obj);
3193 if (out_resp->length == blob->length) {
3194 blob_ptr = (void __user *)(unsigned long)out_resp->data;
3195 if (copy_to_user(blob_ptr, blob->data, blob->length)){
3200 out_resp->length = blob->length;
3203 drm_modeset_unlock_all(dev);
3207 int drm_mode_connector_update_edid_property(struct drm_connector *connector,
3210 struct drm_device *dev = connector->dev;
3213 if (connector->edid_blob_ptr)
3214 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
3216 /* Delete edid, when there is none. */
3218 connector->edid_blob_ptr = NULL;
3219 ret = drm_object_property_set_value(&connector->base, dev->mode_config.edid_property, 0);
3223 size = EDID_LENGTH * (1 + edid->extensions);
3224 connector->edid_blob_ptr = drm_property_create_blob(connector->dev,
3226 if (!connector->edid_blob_ptr)
3229 ret = drm_object_property_set_value(&connector->base,
3230 dev->mode_config.edid_property,
3231 connector->edid_blob_ptr->base.id);
3235 EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
3237 static bool drm_property_change_is_valid(struct drm_property *property,
3240 if (property->flags & DRM_MODE_PROP_IMMUTABLE)
3242 if (property->flags & DRM_MODE_PROP_RANGE) {
3243 if (value < property->values[0] || value > property->values[1])
3246 } else if (property->flags & DRM_MODE_PROP_BITMASK) {
3248 uint64_t valid_mask = 0;
3249 for (i = 0; i < property->num_values; i++)
3250 valid_mask |= (1ULL << property->values[i]);
3251 return !(value & ~valid_mask);
3252 } else if (property->flags & DRM_MODE_PROP_BLOB) {
3253 /* Only the driver knows */
3257 for (i = 0; i < property->num_values; i++)
3258 if (property->values[i] == value)
3264 int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
3265 void *data, struct drm_file *file_priv)
3267 struct drm_mode_connector_set_property *conn_set_prop = data;
3268 struct drm_mode_obj_set_property obj_set_prop = {
3269 .value = conn_set_prop->value,
3270 .prop_id = conn_set_prop->prop_id,
3271 .obj_id = conn_set_prop->connector_id,
3272 .obj_type = DRM_MODE_OBJECT_CONNECTOR
3275 /* It does all the locking and checking we need */
3276 return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv);
3279 static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj,
3280 struct drm_property *property,
3284 struct drm_connector *connector = obj_to_connector(obj);
3286 /* Do DPMS ourselves */
3287 if (property == connector->dev->mode_config.dpms_property) {
3288 if (connector->funcs->dpms)
3289 (*connector->funcs->dpms)(connector, (int)value);
3291 } else if (connector->funcs->set_property)
3292 ret = connector->funcs->set_property(connector, property, value);
3294 /* store the property value if successful */
3296 drm_object_property_set_value(&connector->base, property, value);
3300 static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj,
3301 struct drm_property *property,
3305 struct drm_crtc *crtc = obj_to_crtc(obj);
3307 if (crtc->funcs->set_property)
3308 ret = crtc->funcs->set_property(crtc, property, value);
3310 drm_object_property_set_value(obj, property, value);
3315 static int drm_mode_plane_set_obj_prop(struct drm_mode_object *obj,
3316 struct drm_property *property,
3320 struct drm_plane *plane = obj_to_plane(obj);
3322 if (plane->funcs->set_property)
3323 ret = plane->funcs->set_property(plane, property, value);
3325 drm_object_property_set_value(obj, property, value);
3330 int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
3331 struct drm_file *file_priv)
3333 struct drm_mode_obj_get_properties *arg = data;
3334 struct drm_mode_object *obj;
3338 int props_count = 0;
3339 uint32_t __user *props_ptr;
3340 uint64_t __user *prop_values_ptr;
3342 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3345 drm_modeset_lock_all(dev);
3347 obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
3352 if (!obj->properties) {
3357 props_count = obj->properties->count;
3359 /* This ioctl is called twice, once to determine how much space is
3360 * needed, and the 2nd time to fill it. */
3361 if ((arg->count_props >= props_count) && props_count) {
3363 props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr);
3364 prop_values_ptr = (uint64_t __user *)(unsigned long)
3365 (arg->prop_values_ptr);
3366 for (i = 0; i < props_count; i++) {
3367 if (put_user(obj->properties->ids[i],
3368 props_ptr + copied)) {
3372 if (put_user(obj->properties->values[i],
3373 prop_values_ptr + copied)) {
3380 arg->count_props = props_count;
3382 drm_modeset_unlock_all(dev);
3386 int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
3387 struct drm_file *file_priv)
3389 struct drm_mode_obj_set_property *arg = data;
3390 struct drm_mode_object *arg_obj;
3391 struct drm_mode_object *prop_obj;
3392 struct drm_property *property;
3396 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3399 drm_modeset_lock_all(dev);
3401 arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
3404 if (!arg_obj->properties)
3407 for (i = 0; i < arg_obj->properties->count; i++)
3408 if (arg_obj->properties->ids[i] == arg->prop_id)
3411 if (i == arg_obj->properties->count)
3414 prop_obj = drm_mode_object_find(dev, arg->prop_id,
3415 DRM_MODE_OBJECT_PROPERTY);
3418 property = obj_to_property(prop_obj);
3420 if (!drm_property_change_is_valid(property, arg->value))
3423 switch (arg_obj->type) {
3424 case DRM_MODE_OBJECT_CONNECTOR:
3425 ret = drm_mode_connector_set_obj_prop(arg_obj, property,
3428 case DRM_MODE_OBJECT_CRTC:
3429 ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value);
3431 case DRM_MODE_OBJECT_PLANE:
3432 ret = drm_mode_plane_set_obj_prop(arg_obj, property, arg->value);
3437 drm_modeset_unlock_all(dev);
3441 int drm_mode_connector_attach_encoder(struct drm_connector *connector,
3442 struct drm_encoder *encoder)
3446 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3447 if (connector->encoder_ids[i] == 0) {
3448 connector->encoder_ids[i] = encoder->base.id;
3454 EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
3456 void drm_mode_connector_detach_encoder(struct drm_connector *connector,
3457 struct drm_encoder *encoder)
3460 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3461 if (connector->encoder_ids[i] == encoder->base.id) {
3462 connector->encoder_ids[i] = 0;
3463 if (connector->encoder == encoder)
3464 connector->encoder = NULL;
3469 EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
3471 int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
3474 crtc->gamma_size = gamma_size;
3476 crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
3477 if (!crtc->gamma_store) {
3478 crtc->gamma_size = 0;
3484 EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
3486 int drm_mode_gamma_set_ioctl(struct drm_device *dev,
3487 void *data, struct drm_file *file_priv)
3489 struct drm_mode_crtc_lut *crtc_lut = data;
3490 struct drm_mode_object *obj;
3491 struct drm_crtc *crtc;
3492 void *r_base, *g_base, *b_base;
3496 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3499 drm_modeset_lock_all(dev);
3500 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3505 crtc = obj_to_crtc(obj);
3507 if (crtc->funcs->gamma_set == NULL) {
3512 /* memcpy into gamma store */
3513 if (crtc_lut->gamma_size != crtc->gamma_size) {
3518 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3519 r_base = crtc->gamma_store;
3520 if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
3525 g_base = r_base + size;
3526 if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
3531 b_base = g_base + size;
3532 if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
3537 crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
3540 drm_modeset_unlock_all(dev);
3545 int drm_mode_gamma_get_ioctl(struct drm_device *dev,
3546 void *data, struct drm_file *file_priv)
3548 struct drm_mode_crtc_lut *crtc_lut = data;
3549 struct drm_mode_object *obj;
3550 struct drm_crtc *crtc;
3551 void *r_base, *g_base, *b_base;
3555 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3558 drm_modeset_lock_all(dev);
3559 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3564 crtc = obj_to_crtc(obj);
3566 /* memcpy into gamma store */
3567 if (crtc_lut->gamma_size != crtc->gamma_size) {
3572 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3573 r_base = crtc->gamma_store;
3574 if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
3579 g_base = r_base + size;
3580 if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
3585 b_base = g_base + size;
3586 if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
3591 drm_modeset_unlock_all(dev);
3595 int drm_mode_page_flip_ioctl(struct drm_device *dev,
3596 void *data, struct drm_file *file_priv)
3598 struct drm_mode_crtc_page_flip *page_flip = data;
3599 struct drm_mode_object *obj;
3600 struct drm_crtc *crtc;
3601 struct drm_framebuffer *fb = NULL, *old_fb = NULL;
3602 struct drm_pending_vblank_event *e = NULL;
3603 unsigned long flags;
3606 if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
3607 page_flip->reserved != 0)
3610 if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip)
3613 obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
3616 crtc = obj_to_crtc(obj);
3618 mutex_lock(&crtc->mutex);
3619 if (crtc->fb == NULL) {
3620 /* The framebuffer is currently unbound, presumably
3621 * due to a hotplug event, that userspace has not
3628 if (crtc->funcs->page_flip == NULL)
3631 fb = drm_framebuffer_lookup(dev, page_flip->fb_id);
3635 ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb);
3639 if (crtc->fb->pixel_format != fb->pixel_format) {
3640 DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n");
3645 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3647 spin_lock_irqsave(&dev->event_lock, flags);
3648 if (file_priv->event_space < sizeof e->event) {
3649 spin_unlock_irqrestore(&dev->event_lock, flags);
3652 file_priv->event_space -= sizeof e->event;
3653 spin_unlock_irqrestore(&dev->event_lock, flags);
3655 e = kzalloc(sizeof *e, GFP_KERNEL);
3657 spin_lock_irqsave(&dev->event_lock, flags);
3658 file_priv->event_space += sizeof e->event;
3659 spin_unlock_irqrestore(&dev->event_lock, flags);
3663 e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
3664 e->event.base.length = sizeof e->event;
3665 e->event.user_data = page_flip->user_data;
3666 e->base.event = &e->event.base;
3667 e->base.file_priv = file_priv;
3669 (void (*) (struct drm_pending_event *)) kfree;
3673 ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags);
3675 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3676 spin_lock_irqsave(&dev->event_lock, flags);
3677 file_priv->event_space += sizeof e->event;
3678 spin_unlock_irqrestore(&dev->event_lock, flags);
3681 /* Keep the old fb, don't unref it. */
3685 * Warn if the driver hasn't properly updated the crtc->fb
3686 * field to reflect that the new framebuffer is now used.
3687 * Failing to do so will screw with the reference counting
3690 WARN_ON(crtc->fb != fb);
3691 /* Unref only the old framebuffer. */
3697 drm_framebuffer_unreference(fb);
3699 drm_framebuffer_unreference(old_fb);
3700 mutex_unlock(&crtc->mutex);
3705 void drm_mode_config_reset(struct drm_device *dev)
3707 struct drm_crtc *crtc;
3708 struct drm_encoder *encoder;
3709 struct drm_connector *connector;
3711 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
3712 if (crtc->funcs->reset)
3713 crtc->funcs->reset(crtc);
3715 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
3716 if (encoder->funcs->reset)
3717 encoder->funcs->reset(encoder);
3719 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
3720 connector->status = connector_status_unknown;
3722 if (connector->funcs->reset)
3723 connector->funcs->reset(connector);
3726 EXPORT_SYMBOL(drm_mode_config_reset);
3728 int drm_mode_create_dumb_ioctl(struct drm_device *dev,
3729 void *data, struct drm_file *file_priv)
3731 struct drm_mode_create_dumb *args = data;
3733 if (!dev->driver->dumb_create)
3735 return dev->driver->dumb_create(file_priv, dev, args);
3738 int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
3739 void *data, struct drm_file *file_priv)
3741 struct drm_mode_map_dumb *args = data;
3743 /* call driver ioctl to get mmap offset */
3744 if (!dev->driver->dumb_map_offset)
3747 return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset);
3750 int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
3751 void *data, struct drm_file *file_priv)
3753 struct drm_mode_destroy_dumb *args = data;
3755 if (!dev->driver->dumb_destroy)
3758 return dev->driver->dumb_destroy(file_priv, dev, args->handle);
3762 * Just need to support RGB formats here for compat with code that doesn't
3763 * use pixel formats directly yet.
3765 void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
3770 case DRM_FORMAT_RGB332:
3771 case DRM_FORMAT_BGR233:
3775 case DRM_FORMAT_XRGB1555:
3776 case DRM_FORMAT_XBGR1555:
3777 case DRM_FORMAT_RGBX5551:
3778 case DRM_FORMAT_BGRX5551:
3779 case DRM_FORMAT_ARGB1555:
3780 case DRM_FORMAT_ABGR1555:
3781 case DRM_FORMAT_RGBA5551:
3782 case DRM_FORMAT_BGRA5551:
3786 case DRM_FORMAT_RGB565:
3787 case DRM_FORMAT_BGR565:
3791 case DRM_FORMAT_RGB888:
3792 case DRM_FORMAT_BGR888:
3796 case DRM_FORMAT_XRGB8888:
3797 case DRM_FORMAT_XBGR8888:
3798 case DRM_FORMAT_RGBX8888:
3799 case DRM_FORMAT_BGRX8888:
3803 case DRM_FORMAT_XRGB2101010:
3804 case DRM_FORMAT_XBGR2101010:
3805 case DRM_FORMAT_RGBX1010102:
3806 case DRM_FORMAT_BGRX1010102:
3807 case DRM_FORMAT_ARGB2101010:
3808 case DRM_FORMAT_ABGR2101010:
3809 case DRM_FORMAT_RGBA1010102:
3810 case DRM_FORMAT_BGRA1010102:
3814 case DRM_FORMAT_ARGB8888:
3815 case DRM_FORMAT_ABGR8888:
3816 case DRM_FORMAT_RGBA8888:
3817 case DRM_FORMAT_BGRA8888:
3822 DRM_DEBUG_KMS("unsupported pixel format\n");
3828 EXPORT_SYMBOL(drm_fb_get_bpp_depth);
3831 * drm_format_num_planes - get the number of planes for format
3832 * @format: pixel format (DRM_FORMAT_*)
3835 * The number of planes used by the specified pixel format.
3837 int drm_format_num_planes(uint32_t format)
3840 case DRM_FORMAT_YUV410:
3841 case DRM_FORMAT_YVU410:
3842 case DRM_FORMAT_YUV411:
3843 case DRM_FORMAT_YVU411:
3844 case DRM_FORMAT_YUV420:
3845 case DRM_FORMAT_YVU420:
3846 case DRM_FORMAT_YUV422:
3847 case DRM_FORMAT_YVU422:
3848 case DRM_FORMAT_YUV444:
3849 case DRM_FORMAT_YVU444:
3851 case DRM_FORMAT_NV12:
3852 case DRM_FORMAT_NV21:
3853 case DRM_FORMAT_NV16:
3854 case DRM_FORMAT_NV61:
3855 case DRM_FORMAT_NV24:
3856 case DRM_FORMAT_NV42:
3862 EXPORT_SYMBOL(drm_format_num_planes);
3865 * drm_format_plane_cpp - determine the bytes per pixel value
3866 * @format: pixel format (DRM_FORMAT_*)
3867 * @plane: plane index
3870 * The bytes per pixel value for the specified plane.
3872 int drm_format_plane_cpp(uint32_t format, int plane)
3877 if (plane >= drm_format_num_planes(format))
3881 case DRM_FORMAT_YUYV:
3882 case DRM_FORMAT_YVYU:
3883 case DRM_FORMAT_UYVY:
3884 case DRM_FORMAT_VYUY:
3886 case DRM_FORMAT_NV12:
3887 case DRM_FORMAT_NV21:
3888 case DRM_FORMAT_NV16:
3889 case DRM_FORMAT_NV61:
3890 case DRM_FORMAT_NV24:
3891 case DRM_FORMAT_NV42:
3892 return plane ? 2 : 1;
3893 case DRM_FORMAT_YUV410:
3894 case DRM_FORMAT_YVU410:
3895 case DRM_FORMAT_YUV411:
3896 case DRM_FORMAT_YVU411:
3897 case DRM_FORMAT_YUV420:
3898 case DRM_FORMAT_YVU420:
3899 case DRM_FORMAT_YUV422:
3900 case DRM_FORMAT_YVU422:
3901 case DRM_FORMAT_YUV444:
3902 case DRM_FORMAT_YVU444:
3905 drm_fb_get_bpp_depth(format, &depth, &bpp);
3909 EXPORT_SYMBOL(drm_format_plane_cpp);
3912 * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor
3913 * @format: pixel format (DRM_FORMAT_*)
3916 * The horizontal chroma subsampling factor for the
3917 * specified pixel format.
3919 int drm_format_horz_chroma_subsampling(uint32_t format)
3922 case DRM_FORMAT_YUV411:
3923 case DRM_FORMAT_YVU411:
3924 case DRM_FORMAT_YUV410:
3925 case DRM_FORMAT_YVU410:
3927 case DRM_FORMAT_YUYV:
3928 case DRM_FORMAT_YVYU:
3929 case DRM_FORMAT_UYVY:
3930 case DRM_FORMAT_VYUY:
3931 case DRM_FORMAT_NV12:
3932 case DRM_FORMAT_NV21:
3933 case DRM_FORMAT_NV16:
3934 case DRM_FORMAT_NV61:
3935 case DRM_FORMAT_YUV422:
3936 case DRM_FORMAT_YVU422:
3937 case DRM_FORMAT_YUV420:
3938 case DRM_FORMAT_YVU420:
3944 EXPORT_SYMBOL(drm_format_horz_chroma_subsampling);
3947 * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor
3948 * @format: pixel format (DRM_FORMAT_*)
3951 * The vertical chroma subsampling factor for the
3952 * specified pixel format.
3954 int drm_format_vert_chroma_subsampling(uint32_t format)
3957 case DRM_FORMAT_YUV410:
3958 case DRM_FORMAT_YVU410:
3960 case DRM_FORMAT_YUV420:
3961 case DRM_FORMAT_YVU420:
3962 case DRM_FORMAT_NV12:
3963 case DRM_FORMAT_NV21:
3969 EXPORT_SYMBOL(drm_format_vert_chroma_subsampling);
3972 * drm_mode_config_init - initialize DRM mode_configuration structure
3975 * Initialize @dev's mode_config structure, used for tracking the graphics
3976 * configuration of @dev.
3978 * Since this initializes the modeset locks, no locking is possible. Which is no
3979 * problem, since this should happen single threaded at init time. It is the
3980 * driver's problem to ensure this guarantee.
3983 void drm_mode_config_init(struct drm_device *dev)
3985 mutex_init(&dev->mode_config.mutex);
3986 mutex_init(&dev->mode_config.idr_mutex);
3987 mutex_init(&dev->mode_config.fb_lock);
3988 INIT_LIST_HEAD(&dev->mode_config.fb_list);
3989 INIT_LIST_HEAD(&dev->mode_config.crtc_list);
3990 INIT_LIST_HEAD(&dev->mode_config.connector_list);
3991 INIT_LIST_HEAD(&dev->mode_config.bridge_list);
3992 INIT_LIST_HEAD(&dev->mode_config.encoder_list);
3993 INIT_LIST_HEAD(&dev->mode_config.property_list);
3994 INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
3995 INIT_LIST_HEAD(&dev->mode_config.plane_list);
3996 idr_init(&dev->mode_config.crtc_idr);
3998 drm_modeset_lock_all(dev);
3999 drm_mode_create_standard_connector_properties(dev);
4000 drm_modeset_unlock_all(dev);
4002 /* Just to be sure */
4003 dev->mode_config.num_fb = 0;
4004 dev->mode_config.num_connector = 0;
4005 dev->mode_config.num_crtc = 0;
4006 dev->mode_config.num_encoder = 0;
4008 EXPORT_SYMBOL(drm_mode_config_init);
4011 * drm_mode_config_cleanup - free up DRM mode_config info
4014 * Free up all the connectors and CRTCs associated with this DRM device, then
4015 * free up the framebuffers and associated buffer objects.
4017 * Note that since this /should/ happen single-threaded at driver/device
4018 * teardown time, no locking is required. It's the driver's job to ensure that
4019 * this guarantee actually holds true.
4021 * FIXME: cleanup any dangling user buffer objects too
4023 void drm_mode_config_cleanup(struct drm_device *dev)
4025 struct drm_connector *connector, *ot;
4026 struct drm_crtc *crtc, *ct;
4027 struct drm_encoder *encoder, *enct;
4028 struct drm_bridge *bridge, *brt;
4029 struct drm_framebuffer *fb, *fbt;
4030 struct drm_property *property, *pt;
4031 struct drm_property_blob *blob, *bt;
4032 struct drm_plane *plane, *plt;
4034 list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
4036 encoder->funcs->destroy(encoder);
4039 list_for_each_entry_safe(bridge, brt,
4040 &dev->mode_config.bridge_list, head) {
4041 bridge->funcs->destroy(bridge);
4044 list_for_each_entry_safe(connector, ot,
4045 &dev->mode_config.connector_list, head) {
4046 connector->funcs->destroy(connector);
4049 list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
4051 drm_property_destroy(dev, property);
4054 list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list,
4056 drm_property_destroy_blob(dev, blob);
4060 * Single-threaded teardown context, so it's not required to grab the
4061 * fb_lock to protect against concurrent fb_list access. Contrary, it
4062 * would actually deadlock with the drm_framebuffer_cleanup function.
4064 * Also, if there are any framebuffers left, that's a driver leak now,
4065 * so politely WARN about this.
4067 WARN_ON(!list_empty(&dev->mode_config.fb_list));
4068 list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
4069 drm_framebuffer_remove(fb);
4072 list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
4074 plane->funcs->destroy(plane);
4077 list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
4078 crtc->funcs->destroy(crtc);
4081 idr_destroy(&dev->mode_config.crtc_idr);
4083 EXPORT_SYMBOL(drm_mode_config_cleanup);