2 * Copyright (c) 2006-2008 Intel Corporation
3 * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
4 * Copyright (c) 2008 Red Hat Inc.
6 * DRM core CRTC related functions
8 * Permission to use, copy, modify, distribute, and sell this software and its
9 * documentation for any purpose is hereby granted without fee, provided that
10 * the above copyright notice appear in all copies and that both that copyright
11 * notice and this permission notice appear in supporting documentation, and
12 * that the name of the copyright holders not be used in advertising or
13 * publicity pertaining to distribution of the software without specific,
14 * written prior permission. The copyright holders make no representations
15 * about the suitability of this software for any purpose. It is provided "as
16 * is" without express or implied warranty.
18 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
19 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
20 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
21 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
22 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
23 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
28 * Eric Anholt <eric@anholt.net>
29 * Dave Airlie <airlied@linux.ie>
30 * Jesse Barnes <jesse.barnes@intel.com>
32 #include <linux/ctype.h>
33 #include <linux/list.h>
34 #include <linux/slab.h>
35 #include <linux/export.h>
37 #include <drm/drm_crtc.h>
38 #include <drm/drm_edid.h>
39 #include <drm/drm_fourcc.h>
42 * drm_modeset_lock_all - take all modeset locks
45 * This function takes all modeset locks, suitable where a more fine-grained
46 * scheme isn't (yet) implemented.
48 void drm_modeset_lock_all(struct drm_device *dev)
50 struct drm_crtc *crtc;
52 mutex_lock(&dev->mode_config.mutex);
54 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
55 mutex_lock_nest_lock(&crtc->mutex, &dev->mode_config.mutex);
57 EXPORT_SYMBOL(drm_modeset_lock_all);
60 * drm_modeset_unlock_all - drop all modeset locks
63 void drm_modeset_unlock_all(struct drm_device *dev)
65 struct drm_crtc *crtc;
67 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
68 mutex_unlock(&crtc->mutex);
70 mutex_unlock(&dev->mode_config.mutex);
72 EXPORT_SYMBOL(drm_modeset_unlock_all);
75 * drm_warn_on_modeset_not_all_locked - check that all modeset locks are locked
78 void drm_warn_on_modeset_not_all_locked(struct drm_device *dev)
80 struct drm_crtc *crtc;
82 /* Locking is currently fubar in the panic handler. */
86 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
87 WARN_ON(!mutex_is_locked(&crtc->mutex));
89 WARN_ON(!mutex_is_locked(&dev->mode_config.mutex));
91 EXPORT_SYMBOL(drm_warn_on_modeset_not_all_locked);
93 /* Avoid boilerplate. I'm tired of typing. */
94 #define DRM_ENUM_NAME_FN(fnname, list) \
95 const char *fnname(int val) \
98 for (i = 0; i < ARRAY_SIZE(list); i++) { \
99 if (list[i].type == val) \
100 return list[i].name; \
102 return "(unknown)"; \
108 static const struct drm_prop_enum_list drm_dpms_enum_list[] =
109 { { DRM_MODE_DPMS_ON, "On" },
110 { DRM_MODE_DPMS_STANDBY, "Standby" },
111 { DRM_MODE_DPMS_SUSPEND, "Suspend" },
112 { DRM_MODE_DPMS_OFF, "Off" }
115 DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)
118 * Optional properties
120 static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] =
122 { DRM_MODE_SCALE_NONE, "None" },
123 { DRM_MODE_SCALE_FULLSCREEN, "Full" },
124 { DRM_MODE_SCALE_CENTER, "Center" },
125 { DRM_MODE_SCALE_ASPECT, "Full aspect" },
128 static const struct drm_prop_enum_list drm_dithering_mode_enum_list[] =
130 { DRM_MODE_DITHERING_OFF, "Off" },
131 { DRM_MODE_DITHERING_ON, "On" },
132 { DRM_MODE_DITHERING_AUTO, "Automatic" },
136 * Non-global properties, but "required" for certain connectors.
138 static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] =
140 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
141 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
142 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
145 DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list)
147 static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] =
149 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
150 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
151 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
154 DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
155 drm_dvi_i_subconnector_enum_list)
157 static const struct drm_prop_enum_list drm_tv_select_enum_list[] =
159 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
160 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
161 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
162 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
163 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
166 DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)
168 static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
170 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
171 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
172 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
173 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
174 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
177 DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
178 drm_tv_subconnector_enum_list)
180 static const struct drm_prop_enum_list drm_dirty_info_enum_list[] = {
181 { DRM_MODE_DIRTY_OFF, "Off" },
182 { DRM_MODE_DIRTY_ON, "On" },
183 { DRM_MODE_DIRTY_ANNOTATE, "Annotate" },
186 struct drm_conn_prop_enum_list {
193 * Connector and encoder types.
195 static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
196 { { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 },
197 { DRM_MODE_CONNECTOR_VGA, "VGA", 0 },
198 { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 },
199 { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 },
200 { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 },
201 { DRM_MODE_CONNECTOR_Composite, "Composite", 0 },
202 { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 },
203 { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 },
204 { DRM_MODE_CONNECTOR_Component, "Component", 0 },
205 { DRM_MODE_CONNECTOR_9PinDIN, "DIN", 0 },
206 { DRM_MODE_CONNECTOR_DisplayPort, "DP", 0 },
207 { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A", 0 },
208 { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B", 0 },
209 { DRM_MODE_CONNECTOR_TV, "TV", 0 },
210 { DRM_MODE_CONNECTOR_eDP, "eDP", 0 },
211 { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual", 0},
214 static const struct drm_prop_enum_list drm_encoder_enum_list[] =
215 { { DRM_MODE_ENCODER_NONE, "None" },
216 { DRM_MODE_ENCODER_DAC, "DAC" },
217 { DRM_MODE_ENCODER_TMDS, "TMDS" },
218 { DRM_MODE_ENCODER_LVDS, "LVDS" },
219 { DRM_MODE_ENCODER_TVDAC, "TV" },
220 { DRM_MODE_ENCODER_VIRTUAL, "Virtual" },
223 const char *drm_get_encoder_name(const struct drm_encoder *encoder)
227 snprintf(buf, 32, "%s-%d",
228 drm_encoder_enum_list[encoder->encoder_type].name,
232 EXPORT_SYMBOL(drm_get_encoder_name);
234 const char *drm_get_connector_name(const struct drm_connector *connector)
238 snprintf(buf, 32, "%s-%d",
239 drm_connector_enum_list[connector->connector_type].name,
240 connector->connector_type_id);
243 EXPORT_SYMBOL(drm_get_connector_name);
245 const char *drm_get_connector_status_name(enum drm_connector_status status)
247 if (status == connector_status_connected)
249 else if (status == connector_status_disconnected)
250 return "disconnected";
254 EXPORT_SYMBOL(drm_get_connector_status_name);
256 static char printable_char(int c)
258 return isascii(c) && isprint(c) ? c : '?';
261 const char *drm_get_format_name(uint32_t format)
265 snprintf(buf, sizeof(buf),
266 "%c%c%c%c %s-endian (0x%08x)",
267 printable_char(format & 0xff),
268 printable_char((format >> 8) & 0xff),
269 printable_char((format >> 16) & 0xff),
270 printable_char((format >> 24) & 0x7f),
271 format & DRM_FORMAT_BIG_ENDIAN ? "big" : "little",
276 EXPORT_SYMBOL(drm_get_format_name);
279 * drm_mode_object_get - allocate a new modeset identifier
281 * @obj: object pointer, used to generate unique ID
282 * @obj_type: object type
284 * Create a unique identifier based on @ptr in @dev's identifier space. Used
285 * for tracking modes, CRTCs and connectors.
288 * New unique (relative to other objects in @dev) integer identifier for the
291 static int drm_mode_object_get(struct drm_device *dev,
292 struct drm_mode_object *obj, uint32_t obj_type)
296 mutex_lock(&dev->mode_config.idr_mutex);
297 ret = idr_alloc(&dev->mode_config.crtc_idr, obj, 1, 0, GFP_KERNEL);
300 * Set up the object linking under the protection of the idr
301 * lock so that other users can't see inconsistent state.
304 obj->type = obj_type;
306 mutex_unlock(&dev->mode_config.idr_mutex);
308 return ret < 0 ? ret : 0;
312 * drm_mode_object_put - free a modeset identifer
314 * @object: object to free
316 * Free @id from @dev's unique identifier pool.
318 static void drm_mode_object_put(struct drm_device *dev,
319 struct drm_mode_object *object)
321 mutex_lock(&dev->mode_config.idr_mutex);
322 idr_remove(&dev->mode_config.crtc_idr, object->id);
323 mutex_unlock(&dev->mode_config.idr_mutex);
327 * drm_mode_object_find - look up a drm object with static lifetime
329 * @id: id of the mode object
330 * @type: type of the mode object
332 * Note that framebuffers cannot be looked up with this functions - since those
333 * are reference counted, they need special treatment.
335 struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
336 uint32_t id, uint32_t type)
338 struct drm_mode_object *obj = NULL;
340 /* Framebuffers are reference counted and need their own lookup
342 WARN_ON(type == DRM_MODE_OBJECT_FB);
344 mutex_lock(&dev->mode_config.idr_mutex);
345 obj = idr_find(&dev->mode_config.crtc_idr, id);
346 if (!obj || (obj->type != type) || (obj->id != id))
348 mutex_unlock(&dev->mode_config.idr_mutex);
352 EXPORT_SYMBOL(drm_mode_object_find);
355 * drm_framebuffer_init - initialize a framebuffer
357 * @fb: framebuffer to be initialized
358 * @funcs: ... with these functions
360 * Allocates an ID for the framebuffer's parent mode object, sets its mode
361 * functions & device file and adds it to the master fd list.
364 * This functions publishes the fb and makes it available for concurrent access
365 * by other users. Which means by this point the fb _must_ be fully set up -
366 * since all the fb attributes are invariant over its lifetime, no further
367 * locking but only correct reference counting is required.
370 * Zero on success, error code on failure.
372 int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
373 const struct drm_framebuffer_funcs *funcs)
377 mutex_lock(&dev->mode_config.fb_lock);
378 kref_init(&fb->refcount);
379 INIT_LIST_HEAD(&fb->filp_head);
383 ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
387 /* Grab the idr reference. */
388 drm_framebuffer_reference(fb);
390 dev->mode_config.num_fb++;
391 list_add(&fb->head, &dev->mode_config.fb_list);
393 mutex_unlock(&dev->mode_config.fb_lock);
397 EXPORT_SYMBOL(drm_framebuffer_init);
399 static void drm_framebuffer_free(struct kref *kref)
401 struct drm_framebuffer *fb =
402 container_of(kref, struct drm_framebuffer, refcount);
403 fb->funcs->destroy(fb);
406 static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev,
409 struct drm_mode_object *obj = NULL;
410 struct drm_framebuffer *fb;
412 mutex_lock(&dev->mode_config.idr_mutex);
413 obj = idr_find(&dev->mode_config.crtc_idr, id);
414 if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id))
418 mutex_unlock(&dev->mode_config.idr_mutex);
424 * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference
426 * @id: id of the fb object
428 * If successful, this grabs an additional reference to the framebuffer -
429 * callers need to make sure to eventually unreference the returned framebuffer
432 struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev,
435 struct drm_framebuffer *fb;
437 mutex_lock(&dev->mode_config.fb_lock);
438 fb = __drm_framebuffer_lookup(dev, id);
440 drm_framebuffer_reference(fb);
441 mutex_unlock(&dev->mode_config.fb_lock);
445 EXPORT_SYMBOL(drm_framebuffer_lookup);
448 * drm_framebuffer_unreference - unref a framebuffer
449 * @fb: framebuffer to unref
451 * This functions decrements the fb's refcount and frees it if it drops to zero.
453 void drm_framebuffer_unreference(struct drm_framebuffer *fb)
455 DRM_DEBUG("FB ID: %d\n", fb->base.id);
456 kref_put(&fb->refcount, drm_framebuffer_free);
458 EXPORT_SYMBOL(drm_framebuffer_unreference);
461 * drm_framebuffer_reference - incr the fb refcnt
464 void drm_framebuffer_reference(struct drm_framebuffer *fb)
466 DRM_DEBUG("FB ID: %d\n", fb->base.id);
467 kref_get(&fb->refcount);
469 EXPORT_SYMBOL(drm_framebuffer_reference);
471 static void drm_framebuffer_free_bug(struct kref *kref)
476 static void __drm_framebuffer_unreference(struct drm_framebuffer *fb)
478 DRM_DEBUG("FB ID: %d\n", fb->base.id);
479 kref_put(&fb->refcount, drm_framebuffer_free_bug);
482 /* dev->mode_config.fb_lock must be held! */
483 static void __drm_framebuffer_unregister(struct drm_device *dev,
484 struct drm_framebuffer *fb)
486 mutex_lock(&dev->mode_config.idr_mutex);
487 idr_remove(&dev->mode_config.crtc_idr, fb->base.id);
488 mutex_unlock(&dev->mode_config.idr_mutex);
492 __drm_framebuffer_unreference(fb);
496 * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr
497 * @fb: fb to unregister
499 * Drivers need to call this when cleaning up driver-private framebuffers, e.g.
500 * those used for fbdev. Note that the caller must hold a reference of it's own,
501 * i.e. the object may not be destroyed through this call (since it'll lead to a
502 * locking inversion).
504 void drm_framebuffer_unregister_private(struct drm_framebuffer *fb)
506 struct drm_device *dev = fb->dev;
508 mutex_lock(&dev->mode_config.fb_lock);
509 /* Mark fb as reaped and drop idr ref. */
510 __drm_framebuffer_unregister(dev, fb);
511 mutex_unlock(&dev->mode_config.fb_lock);
513 EXPORT_SYMBOL(drm_framebuffer_unregister_private);
516 * drm_framebuffer_cleanup - remove a framebuffer object
517 * @fb: framebuffer to remove
519 * Cleanup references to a user-created framebuffer. This function is intended
520 * to be used from the drivers ->destroy callback.
522 * Note that this function does not remove the fb from active usuage - if it is
523 * still used anywhere, hilarity can ensue since userspace could call getfb on
524 * the id and get back -EINVAL. Obviously no concern at driver unload time.
526 * Also, the framebuffer will not be removed from the lookup idr - for
527 * user-created framebuffers this will happen in in the rmfb ioctl. For
528 * driver-private objects (e.g. for fbdev) drivers need to explicitly call
529 * drm_framebuffer_unregister_private.
531 void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
533 struct drm_device *dev = fb->dev;
535 mutex_lock(&dev->mode_config.fb_lock);
537 dev->mode_config.num_fb--;
538 mutex_unlock(&dev->mode_config.fb_lock);
540 EXPORT_SYMBOL(drm_framebuffer_cleanup);
543 * drm_framebuffer_remove - remove and unreference a framebuffer object
544 * @fb: framebuffer to remove
546 * Scans all the CRTCs and planes in @dev's mode_config. If they're
547 * using @fb, removes it, setting it to NULL. Then drops the reference to the
548 * passed-in framebuffer. Might take the modeset locks.
550 * Note that this function optimizes the cleanup away if the caller holds the
551 * last reference to the framebuffer. It is also guaranteed to not take the
552 * modeset locks in this case.
554 void drm_framebuffer_remove(struct drm_framebuffer *fb)
556 struct drm_device *dev = fb->dev;
557 struct drm_crtc *crtc;
558 struct drm_plane *plane;
559 struct drm_mode_set set;
562 WARN_ON(!list_empty(&fb->filp_head));
565 * drm ABI mandates that we remove any deleted framebuffers from active
566 * useage. But since most sane clients only remove framebuffers they no
567 * longer need, try to optimize this away.
569 * Since we're holding a reference ourselves, observing a refcount of 1
570 * means that we're the last holder and can skip it. Also, the refcount
571 * can never increase from 1 again, so we don't need any barriers or
574 * Note that userspace could try to race with use and instate a new
575 * usage _after_ we've cleared all current ones. End result will be an
576 * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot
579 if (atomic_read(&fb->refcount.refcount) > 1) {
580 drm_modeset_lock_all(dev);
581 /* remove from any CRTC */
582 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
583 if (crtc->fb == fb) {
584 /* should turn off the crtc */
585 memset(&set, 0, sizeof(struct drm_mode_set));
588 ret = drm_mode_set_config_internal(&set);
590 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
594 list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
595 if (plane->fb == fb) {
596 /* should turn off the crtc */
597 ret = plane->funcs->disable_plane(plane);
599 DRM_ERROR("failed to disable plane with busy fb\n");
600 /* disconnect the plane from the fb and crtc: */
601 __drm_framebuffer_unreference(plane->fb);
606 drm_modeset_unlock_all(dev);
609 drm_framebuffer_unreference(fb);
611 EXPORT_SYMBOL(drm_framebuffer_remove);
614 * drm_crtc_init - Initialise a new CRTC object
616 * @crtc: CRTC object to init
617 * @funcs: callbacks for the new CRTC
619 * Inits a new object created as base part of an driver crtc object.
622 * Zero on success, error code on failure.
624 int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
625 const struct drm_crtc_funcs *funcs)
631 crtc->invert_dimensions = false;
633 drm_modeset_lock_all(dev);
634 mutex_init(&crtc->mutex);
635 mutex_lock_nest_lock(&crtc->mutex, &dev->mode_config.mutex);
637 ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
641 crtc->base.properties = &crtc->properties;
643 list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
644 dev->mode_config.num_crtc++;
647 drm_modeset_unlock_all(dev);
651 EXPORT_SYMBOL(drm_crtc_init);
654 * drm_crtc_cleanup - Cleans up the core crtc usage.
655 * @crtc: CRTC to cleanup
657 * Cleanup @crtc. Removes from drm modesetting space
658 * does NOT free object, caller does that.
660 void drm_crtc_cleanup(struct drm_crtc *crtc)
662 struct drm_device *dev = crtc->dev;
664 kfree(crtc->gamma_store);
665 crtc->gamma_store = NULL;
667 drm_mode_object_put(dev, &crtc->base);
668 list_del(&crtc->head);
669 dev->mode_config.num_crtc--;
671 EXPORT_SYMBOL(drm_crtc_cleanup);
674 * drm_mode_probed_add - add a mode to a connector's probed mode list
675 * @connector: connector the new mode
678 * Add @mode to @connector's mode list for later use.
680 void drm_mode_probed_add(struct drm_connector *connector,
681 struct drm_display_mode *mode)
683 list_add(&mode->head, &connector->probed_modes);
685 EXPORT_SYMBOL(drm_mode_probed_add);
688 * drm_mode_remove - remove and free a mode
689 * @connector: connector list to modify
690 * @mode: mode to remove
692 * Remove @mode from @connector's mode list, then free it.
694 void drm_mode_remove(struct drm_connector *connector,
695 struct drm_display_mode *mode)
697 list_del(&mode->head);
698 drm_mode_destroy(connector->dev, mode);
700 EXPORT_SYMBOL(drm_mode_remove);
703 * drm_connector_init - Init a preallocated connector
705 * @connector: the connector to init
706 * @funcs: callbacks for this connector
707 * @connector_type: user visible type of the connector
709 * Initialises a preallocated connector. Connectors should be
710 * subclassed as part of driver connector objects.
713 * Zero on success, error code on failure.
715 int drm_connector_init(struct drm_device *dev,
716 struct drm_connector *connector,
717 const struct drm_connector_funcs *funcs,
722 drm_modeset_lock_all(dev);
724 ret = drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
728 connector->base.properties = &connector->properties;
729 connector->dev = dev;
730 connector->funcs = funcs;
731 connector->connector_type = connector_type;
732 connector->connector_type_id =
733 ++drm_connector_enum_list[connector_type].count; /* TODO */
734 INIT_LIST_HEAD(&connector->probed_modes);
735 INIT_LIST_HEAD(&connector->modes);
736 connector->edid_blob_ptr = NULL;
737 connector->status = connector_status_unknown;
739 list_add_tail(&connector->head, &dev->mode_config.connector_list);
740 dev->mode_config.num_connector++;
742 if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL)
743 drm_object_attach_property(&connector->base,
744 dev->mode_config.edid_property,
747 drm_object_attach_property(&connector->base,
748 dev->mode_config.dpms_property, 0);
751 drm_modeset_unlock_all(dev);
755 EXPORT_SYMBOL(drm_connector_init);
758 * drm_connector_cleanup - cleans up an initialised connector
759 * @connector: connector to cleanup
761 * Cleans up the connector but doesn't free the object.
763 void drm_connector_cleanup(struct drm_connector *connector)
765 struct drm_device *dev = connector->dev;
766 struct drm_display_mode *mode, *t;
768 list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
769 drm_mode_remove(connector, mode);
771 list_for_each_entry_safe(mode, t, &connector->modes, head)
772 drm_mode_remove(connector, mode);
774 drm_mode_object_put(dev, &connector->base);
775 list_del(&connector->head);
776 dev->mode_config.num_connector--;
778 EXPORT_SYMBOL(drm_connector_cleanup);
780 void drm_connector_unplug_all(struct drm_device *dev)
782 struct drm_connector *connector;
784 /* taking the mode config mutex ends up in a clash with sysfs */
785 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
786 drm_sysfs_connector_remove(connector);
789 EXPORT_SYMBOL(drm_connector_unplug_all);
791 int drm_encoder_init(struct drm_device *dev,
792 struct drm_encoder *encoder,
793 const struct drm_encoder_funcs *funcs,
798 drm_modeset_lock_all(dev);
800 ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
805 encoder->encoder_type = encoder_type;
806 encoder->funcs = funcs;
808 list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
809 dev->mode_config.num_encoder++;
812 drm_modeset_unlock_all(dev);
816 EXPORT_SYMBOL(drm_encoder_init);
818 void drm_encoder_cleanup(struct drm_encoder *encoder)
820 struct drm_device *dev = encoder->dev;
821 drm_modeset_lock_all(dev);
822 drm_mode_object_put(dev, &encoder->base);
823 list_del(&encoder->head);
824 dev->mode_config.num_encoder--;
825 drm_modeset_unlock_all(dev);
827 EXPORT_SYMBOL(drm_encoder_cleanup);
829 int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
830 unsigned long possible_crtcs,
831 const struct drm_plane_funcs *funcs,
832 const uint32_t *formats, uint32_t format_count,
837 drm_modeset_lock_all(dev);
839 ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE);
843 plane->base.properties = &plane->properties;
845 plane->funcs = funcs;
846 plane->format_types = kmalloc(sizeof(uint32_t) * format_count,
848 if (!plane->format_types) {
849 DRM_DEBUG_KMS("out of memory when allocating plane\n");
850 drm_mode_object_put(dev, &plane->base);
855 memcpy(plane->format_types, formats, format_count * sizeof(uint32_t));
856 plane->format_count = format_count;
857 plane->possible_crtcs = possible_crtcs;
859 /* private planes are not exposed to userspace, but depending on
860 * display hardware, might be convenient to allow sharing programming
861 * for the scanout engine with the crtc implementation.
864 list_add_tail(&plane->head, &dev->mode_config.plane_list);
865 dev->mode_config.num_plane++;
867 INIT_LIST_HEAD(&plane->head);
871 drm_modeset_unlock_all(dev);
875 EXPORT_SYMBOL(drm_plane_init);
877 void drm_plane_cleanup(struct drm_plane *plane)
879 struct drm_device *dev = plane->dev;
881 drm_modeset_lock_all(dev);
882 kfree(plane->format_types);
883 drm_mode_object_put(dev, &plane->base);
884 /* if not added to a list, it must be a private plane */
885 if (!list_empty(&plane->head)) {
886 list_del(&plane->head);
887 dev->mode_config.num_plane--;
889 drm_modeset_unlock_all(dev);
891 EXPORT_SYMBOL(drm_plane_cleanup);
894 * drm_mode_create - create a new display mode
897 * Create a new drm_display_mode, give it an ID, and return it.
900 * Pointer to new mode on success, NULL on error.
902 struct drm_display_mode *drm_mode_create(struct drm_device *dev)
904 struct drm_display_mode *nmode;
906 nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
910 if (drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE)) {
917 EXPORT_SYMBOL(drm_mode_create);
920 * drm_mode_destroy - remove a mode
922 * @mode: mode to remove
924 * Free @mode's unique identifier, then free it.
926 void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
931 drm_mode_object_put(dev, &mode->base);
935 EXPORT_SYMBOL(drm_mode_destroy);
937 static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
939 struct drm_property *edid;
940 struct drm_property *dpms;
943 * Standard properties (apply to all connectors)
945 edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
946 DRM_MODE_PROP_IMMUTABLE,
948 dev->mode_config.edid_property = edid;
950 dpms = drm_property_create_enum(dev, 0,
951 "DPMS", drm_dpms_enum_list,
952 ARRAY_SIZE(drm_dpms_enum_list));
953 dev->mode_config.dpms_property = dpms;
959 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
962 * Called by a driver the first time a DVI-I connector is made.
964 int drm_mode_create_dvi_i_properties(struct drm_device *dev)
966 struct drm_property *dvi_i_selector;
967 struct drm_property *dvi_i_subconnector;
969 if (dev->mode_config.dvi_i_select_subconnector_property)
973 drm_property_create_enum(dev, 0,
974 "select subconnector",
975 drm_dvi_i_select_enum_list,
976 ARRAY_SIZE(drm_dvi_i_select_enum_list));
977 dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
979 dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
981 drm_dvi_i_subconnector_enum_list,
982 ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
983 dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
987 EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
990 * drm_create_tv_properties - create TV specific connector properties
992 * @num_modes: number of different TV formats (modes) supported
993 * @modes: array of pointers to strings containing name of each format
995 * Called by a driver's TV initialization routine, this function creates
996 * the TV specific connector properties for a given device. Caller is
997 * responsible for allocating a list of format names and passing them to
1000 int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
1003 struct drm_property *tv_selector;
1004 struct drm_property *tv_subconnector;
1007 if (dev->mode_config.tv_select_subconnector_property)
1011 * Basic connector properties
1013 tv_selector = drm_property_create_enum(dev, 0,
1014 "select subconnector",
1015 drm_tv_select_enum_list,
1016 ARRAY_SIZE(drm_tv_select_enum_list));
1017 dev->mode_config.tv_select_subconnector_property = tv_selector;
1020 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
1022 drm_tv_subconnector_enum_list,
1023 ARRAY_SIZE(drm_tv_subconnector_enum_list));
1024 dev->mode_config.tv_subconnector_property = tv_subconnector;
1027 * Other, TV specific properties: margins & TV modes.
1029 dev->mode_config.tv_left_margin_property =
1030 drm_property_create_range(dev, 0, "left margin", 0, 100);
1032 dev->mode_config.tv_right_margin_property =
1033 drm_property_create_range(dev, 0, "right margin", 0, 100);
1035 dev->mode_config.tv_top_margin_property =
1036 drm_property_create_range(dev, 0, "top margin", 0, 100);
1038 dev->mode_config.tv_bottom_margin_property =
1039 drm_property_create_range(dev, 0, "bottom margin", 0, 100);
1041 dev->mode_config.tv_mode_property =
1042 drm_property_create(dev, DRM_MODE_PROP_ENUM,
1044 for (i = 0; i < num_modes; i++)
1045 drm_property_add_enum(dev->mode_config.tv_mode_property, i,
1048 dev->mode_config.tv_brightness_property =
1049 drm_property_create_range(dev, 0, "brightness", 0, 100);
1051 dev->mode_config.tv_contrast_property =
1052 drm_property_create_range(dev, 0, "contrast", 0, 100);
1054 dev->mode_config.tv_flicker_reduction_property =
1055 drm_property_create_range(dev, 0, "flicker reduction", 0, 100);
1057 dev->mode_config.tv_overscan_property =
1058 drm_property_create_range(dev, 0, "overscan", 0, 100);
1060 dev->mode_config.tv_saturation_property =
1061 drm_property_create_range(dev, 0, "saturation", 0, 100);
1063 dev->mode_config.tv_hue_property =
1064 drm_property_create_range(dev, 0, "hue", 0, 100);
1068 EXPORT_SYMBOL(drm_mode_create_tv_properties);
1071 * drm_mode_create_scaling_mode_property - create scaling mode property
1074 * Called by a driver the first time it's needed, must be attached to desired
1077 int drm_mode_create_scaling_mode_property(struct drm_device *dev)
1079 struct drm_property *scaling_mode;
1081 if (dev->mode_config.scaling_mode_property)
1085 drm_property_create_enum(dev, 0, "scaling mode",
1086 drm_scaling_mode_enum_list,
1087 ARRAY_SIZE(drm_scaling_mode_enum_list));
1089 dev->mode_config.scaling_mode_property = scaling_mode;
1093 EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
1096 * drm_mode_create_dithering_property - create dithering property
1099 * Called by a driver the first time it's needed, must be attached to desired
1102 int drm_mode_create_dithering_property(struct drm_device *dev)
1104 struct drm_property *dithering_mode;
1106 if (dev->mode_config.dithering_mode_property)
1110 drm_property_create_enum(dev, 0, "dithering",
1111 drm_dithering_mode_enum_list,
1112 ARRAY_SIZE(drm_dithering_mode_enum_list));
1113 dev->mode_config.dithering_mode_property = dithering_mode;
1117 EXPORT_SYMBOL(drm_mode_create_dithering_property);
1120 * drm_mode_create_dirty_property - create dirty property
1123 * Called by a driver the first time it's needed, must be attached to desired
1126 int drm_mode_create_dirty_info_property(struct drm_device *dev)
1128 struct drm_property *dirty_info;
1130 if (dev->mode_config.dirty_info_property)
1134 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
1136 drm_dirty_info_enum_list,
1137 ARRAY_SIZE(drm_dirty_info_enum_list));
1138 dev->mode_config.dirty_info_property = dirty_info;
1142 EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
1144 static int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
1146 uint32_t total_objects = 0;
1148 total_objects += dev->mode_config.num_crtc;
1149 total_objects += dev->mode_config.num_connector;
1150 total_objects += dev->mode_config.num_encoder;
1152 group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
1153 if (!group->id_list)
1156 group->num_crtcs = 0;
1157 group->num_connectors = 0;
1158 group->num_encoders = 0;
1162 int drm_mode_group_init_legacy_group(struct drm_device *dev,
1163 struct drm_mode_group *group)
1165 struct drm_crtc *crtc;
1166 struct drm_encoder *encoder;
1167 struct drm_connector *connector;
1170 if ((ret = drm_mode_group_init(dev, group)))
1173 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
1174 group->id_list[group->num_crtcs++] = crtc->base.id;
1176 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
1177 group->id_list[group->num_crtcs + group->num_encoders++] =
1180 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
1181 group->id_list[group->num_crtcs + group->num_encoders +
1182 group->num_connectors++] = connector->base.id;
1186 EXPORT_SYMBOL(drm_mode_group_init_legacy_group);
1189 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
1190 * @out: drm_mode_modeinfo struct to return to the user
1191 * @in: drm_display_mode to use
1193 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
1196 static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
1197 const struct drm_display_mode *in)
1199 WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX ||
1200 in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX ||
1201 in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX ||
1202 in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX ||
1203 in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX,
1204 "timing values too large for mode info\n");
1206 out->clock = in->clock;
1207 out->hdisplay = in->hdisplay;
1208 out->hsync_start = in->hsync_start;
1209 out->hsync_end = in->hsync_end;
1210 out->htotal = in->htotal;
1211 out->hskew = in->hskew;
1212 out->vdisplay = in->vdisplay;
1213 out->vsync_start = in->vsync_start;
1214 out->vsync_end = in->vsync_end;
1215 out->vtotal = in->vtotal;
1216 out->vscan = in->vscan;
1217 out->vrefresh = in->vrefresh;
1218 out->flags = in->flags;
1219 out->type = in->type;
1220 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1221 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1225 * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
1226 * @out: drm_display_mode to return to the user
1227 * @in: drm_mode_modeinfo to use
1229 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
1233 * Zero on success, errno on failure.
1235 static int drm_crtc_convert_umode(struct drm_display_mode *out,
1236 const struct drm_mode_modeinfo *in)
1238 if (in->clock > INT_MAX || in->vrefresh > INT_MAX)
1241 out->clock = in->clock;
1242 out->hdisplay = in->hdisplay;
1243 out->hsync_start = in->hsync_start;
1244 out->hsync_end = in->hsync_end;
1245 out->htotal = in->htotal;
1246 out->hskew = in->hskew;
1247 out->vdisplay = in->vdisplay;
1248 out->vsync_start = in->vsync_start;
1249 out->vsync_end = in->vsync_end;
1250 out->vtotal = in->vtotal;
1251 out->vscan = in->vscan;
1252 out->vrefresh = in->vrefresh;
1253 out->flags = in->flags;
1254 out->type = in->type;
1255 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1256 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1262 * drm_mode_getresources - get graphics configuration
1263 * @dev: drm device for the ioctl
1264 * @data: data pointer for the ioctl
1265 * @file_priv: drm file for the ioctl call
1267 * Construct a set of configuration description structures and return
1268 * them to the user, including CRTC, connector and framebuffer configuration.
1270 * Called by the user via ioctl.
1273 * Zero on success, errno on failure.
1275 int drm_mode_getresources(struct drm_device *dev, void *data,
1276 struct drm_file *file_priv)
1278 struct drm_mode_card_res *card_res = data;
1279 struct list_head *lh;
1280 struct drm_framebuffer *fb;
1281 struct drm_connector *connector;
1282 struct drm_crtc *crtc;
1283 struct drm_encoder *encoder;
1285 int connector_count = 0;
1288 int encoder_count = 0;
1290 uint32_t __user *fb_id;
1291 uint32_t __user *crtc_id;
1292 uint32_t __user *connector_id;
1293 uint32_t __user *encoder_id;
1294 struct drm_mode_group *mode_group;
1296 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1300 mutex_lock(&file_priv->fbs_lock);
1302 * For the non-control nodes we need to limit the list of resources
1303 * by IDs in the group list for this node
1305 list_for_each(lh, &file_priv->fbs)
1308 /* handle this in 4 parts */
1310 if (card_res->count_fbs >= fb_count) {
1312 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
1313 list_for_each_entry(fb, &file_priv->fbs, filp_head) {
1314 if (put_user(fb->base.id, fb_id + copied)) {
1315 mutex_unlock(&file_priv->fbs_lock);
1321 card_res->count_fbs = fb_count;
1322 mutex_unlock(&file_priv->fbs_lock);
1324 drm_modeset_lock_all(dev);
1325 mode_group = &file_priv->master->minor->mode_group;
1326 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1328 list_for_each(lh, &dev->mode_config.crtc_list)
1331 list_for_each(lh, &dev->mode_config.connector_list)
1334 list_for_each(lh, &dev->mode_config.encoder_list)
1338 crtc_count = mode_group->num_crtcs;
1339 connector_count = mode_group->num_connectors;
1340 encoder_count = mode_group->num_encoders;
1343 card_res->max_height = dev->mode_config.max_height;
1344 card_res->min_height = dev->mode_config.min_height;
1345 card_res->max_width = dev->mode_config.max_width;
1346 card_res->min_width = dev->mode_config.min_width;
1349 if (card_res->count_crtcs >= crtc_count) {
1351 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
1352 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1353 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1355 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
1356 if (put_user(crtc->base.id, crtc_id + copied)) {
1363 for (i = 0; i < mode_group->num_crtcs; i++) {
1364 if (put_user(mode_group->id_list[i],
1365 crtc_id + copied)) {
1373 card_res->count_crtcs = crtc_count;
1376 if (card_res->count_encoders >= encoder_count) {
1378 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
1379 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1380 list_for_each_entry(encoder,
1381 &dev->mode_config.encoder_list,
1383 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id,
1384 drm_get_encoder_name(encoder));
1385 if (put_user(encoder->base.id, encoder_id +
1393 for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
1394 if (put_user(mode_group->id_list[i],
1395 encoder_id + copied)) {
1404 card_res->count_encoders = encoder_count;
1407 if (card_res->count_connectors >= connector_count) {
1409 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
1410 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1411 list_for_each_entry(connector,
1412 &dev->mode_config.connector_list,
1414 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1416 drm_get_connector_name(connector));
1417 if (put_user(connector->base.id,
1418 connector_id + copied)) {
1425 int start = mode_group->num_crtcs +
1426 mode_group->num_encoders;
1427 for (i = start; i < start + mode_group->num_connectors; i++) {
1428 if (put_user(mode_group->id_list[i],
1429 connector_id + copied)) {
1437 card_res->count_connectors = connector_count;
1439 DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs,
1440 card_res->count_connectors, card_res->count_encoders);
1443 drm_modeset_unlock_all(dev);
1448 * drm_mode_getcrtc - get CRTC configuration
1449 * @dev: drm device for the ioctl
1450 * @data: data pointer for the ioctl
1451 * @file_priv: drm file for the ioctl call
1453 * Construct a CRTC configuration structure to return to the user.
1455 * Called by the user via ioctl.
1458 * Zero on success, errno on failure.
1460 int drm_mode_getcrtc(struct drm_device *dev,
1461 void *data, struct drm_file *file_priv)
1463 struct drm_mode_crtc *crtc_resp = data;
1464 struct drm_crtc *crtc;
1465 struct drm_mode_object *obj;
1468 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1471 drm_modeset_lock_all(dev);
1473 obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
1474 DRM_MODE_OBJECT_CRTC);
1479 crtc = obj_to_crtc(obj);
1481 crtc_resp->x = crtc->x;
1482 crtc_resp->y = crtc->y;
1483 crtc_resp->gamma_size = crtc->gamma_size;
1485 crtc_resp->fb_id = crtc->fb->base.id;
1487 crtc_resp->fb_id = 0;
1489 if (crtc->enabled) {
1491 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1492 crtc_resp->mode_valid = 1;
1495 crtc_resp->mode_valid = 0;
1499 drm_modeset_unlock_all(dev);
1504 * drm_mode_getconnector - get connector configuration
1505 * @dev: drm device for the ioctl
1506 * @data: data pointer for the ioctl
1507 * @file_priv: drm file for the ioctl call
1509 * Construct a connector configuration structure to return to the user.
1511 * Called by the user via ioctl.
1514 * Zero on success, errno on failure.
1516 int drm_mode_getconnector(struct drm_device *dev, void *data,
1517 struct drm_file *file_priv)
1519 struct drm_mode_get_connector *out_resp = data;
1520 struct drm_mode_object *obj;
1521 struct drm_connector *connector;
1522 struct drm_display_mode *mode;
1524 int props_count = 0;
1525 int encoders_count = 0;
1529 struct drm_mode_modeinfo u_mode;
1530 struct drm_mode_modeinfo __user *mode_ptr;
1531 uint32_t __user *prop_ptr;
1532 uint64_t __user *prop_values;
1533 uint32_t __user *encoder_ptr;
1535 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1538 memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1540 DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);
1542 mutex_lock(&dev->mode_config.mutex);
1544 obj = drm_mode_object_find(dev, out_resp->connector_id,
1545 DRM_MODE_OBJECT_CONNECTOR);
1550 connector = obj_to_connector(obj);
1552 props_count = connector->properties.count;
1554 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1555 if (connector->encoder_ids[i] != 0) {
1560 if (out_resp->count_modes == 0) {
1561 connector->funcs->fill_modes(connector,
1562 dev->mode_config.max_width,
1563 dev->mode_config.max_height);
1566 /* delayed so we get modes regardless of pre-fill_modes state */
1567 list_for_each_entry(mode, &connector->modes, head)
1570 out_resp->connector_id = connector->base.id;
1571 out_resp->connector_type = connector->connector_type;
1572 out_resp->connector_type_id = connector->connector_type_id;
1573 out_resp->mm_width = connector->display_info.width_mm;
1574 out_resp->mm_height = connector->display_info.height_mm;
1575 out_resp->subpixel = connector->display_info.subpixel_order;
1576 out_resp->connection = connector->status;
1577 if (connector->encoder)
1578 out_resp->encoder_id = connector->encoder->base.id;
1580 out_resp->encoder_id = 0;
1583 * This ioctl is called twice, once to determine how much space is
1584 * needed, and the 2nd time to fill it.
1586 if ((out_resp->count_modes >= mode_count) && mode_count) {
1588 mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr;
1589 list_for_each_entry(mode, &connector->modes, head) {
1590 drm_crtc_convert_to_umode(&u_mode, mode);
1591 if (copy_to_user(mode_ptr + copied,
1592 &u_mode, sizeof(u_mode))) {
1599 out_resp->count_modes = mode_count;
1601 if ((out_resp->count_props >= props_count) && props_count) {
1603 prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr);
1604 prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr);
1605 for (i = 0; i < connector->properties.count; i++) {
1606 if (put_user(connector->properties.ids[i],
1607 prop_ptr + copied)) {
1612 if (put_user(connector->properties.values[i],
1613 prop_values + copied)) {
1620 out_resp->count_props = props_count;
1622 if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
1624 encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr);
1625 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1626 if (connector->encoder_ids[i] != 0) {
1627 if (put_user(connector->encoder_ids[i],
1628 encoder_ptr + copied)) {
1636 out_resp->count_encoders = encoders_count;
1639 mutex_unlock(&dev->mode_config.mutex);
1644 int drm_mode_getencoder(struct drm_device *dev, void *data,
1645 struct drm_file *file_priv)
1647 struct drm_mode_get_encoder *enc_resp = data;
1648 struct drm_mode_object *obj;
1649 struct drm_encoder *encoder;
1652 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1655 drm_modeset_lock_all(dev);
1656 obj = drm_mode_object_find(dev, enc_resp->encoder_id,
1657 DRM_MODE_OBJECT_ENCODER);
1662 encoder = obj_to_encoder(obj);
1665 enc_resp->crtc_id = encoder->crtc->base.id;
1667 enc_resp->crtc_id = 0;
1668 enc_resp->encoder_type = encoder->encoder_type;
1669 enc_resp->encoder_id = encoder->base.id;
1670 enc_resp->possible_crtcs = encoder->possible_crtcs;
1671 enc_resp->possible_clones = encoder->possible_clones;
1674 drm_modeset_unlock_all(dev);
1679 * drm_mode_getplane_res - get plane info
1682 * @file_priv: DRM file info
1684 * Return an plane count and set of IDs.
1686 int drm_mode_getplane_res(struct drm_device *dev, void *data,
1687 struct drm_file *file_priv)
1689 struct drm_mode_get_plane_res *plane_resp = data;
1690 struct drm_mode_config *config;
1691 struct drm_plane *plane;
1692 uint32_t __user *plane_ptr;
1693 int copied = 0, ret = 0;
1695 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1698 drm_modeset_lock_all(dev);
1699 config = &dev->mode_config;
1702 * This ioctl is called twice, once to determine how much space is
1703 * needed, and the 2nd time to fill it.
1705 if (config->num_plane &&
1706 (plane_resp->count_planes >= config->num_plane)) {
1707 plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr;
1709 list_for_each_entry(plane, &config->plane_list, head) {
1710 if (put_user(plane->base.id, plane_ptr + copied)) {
1717 plane_resp->count_planes = config->num_plane;
1720 drm_modeset_unlock_all(dev);
1725 * drm_mode_getplane - get plane info
1728 * @file_priv: DRM file info
1730 * Return plane info, including formats supported, gamma size, any
1733 int drm_mode_getplane(struct drm_device *dev, void *data,
1734 struct drm_file *file_priv)
1736 struct drm_mode_get_plane *plane_resp = data;
1737 struct drm_mode_object *obj;
1738 struct drm_plane *plane;
1739 uint32_t __user *format_ptr;
1742 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1745 drm_modeset_lock_all(dev);
1746 obj = drm_mode_object_find(dev, plane_resp->plane_id,
1747 DRM_MODE_OBJECT_PLANE);
1752 plane = obj_to_plane(obj);
1755 plane_resp->crtc_id = plane->crtc->base.id;
1757 plane_resp->crtc_id = 0;
1760 plane_resp->fb_id = plane->fb->base.id;
1762 plane_resp->fb_id = 0;
1764 plane_resp->plane_id = plane->base.id;
1765 plane_resp->possible_crtcs = plane->possible_crtcs;
1766 plane_resp->gamma_size = plane->gamma_size;
1769 * This ioctl is called twice, once to determine how much space is
1770 * needed, and the 2nd time to fill it.
1772 if (plane->format_count &&
1773 (plane_resp->count_format_types >= plane->format_count)) {
1774 format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr;
1775 if (copy_to_user(format_ptr,
1776 plane->format_types,
1777 sizeof(uint32_t) * plane->format_count)) {
1782 plane_resp->count_format_types = plane->format_count;
1785 drm_modeset_unlock_all(dev);
1790 * drm_mode_setplane - set up or tear down an plane
1792 * @data: ioctl data*
1793 * @file_priv: DRM file info
1795 * Set plane info, including placement, fb, scaling, and other factors.
1796 * Or pass a NULL fb to disable.
1798 int drm_mode_setplane(struct drm_device *dev, void *data,
1799 struct drm_file *file_priv)
1801 struct drm_mode_set_plane *plane_req = data;
1802 struct drm_mode_object *obj;
1803 struct drm_plane *plane;
1804 struct drm_crtc *crtc;
1805 struct drm_framebuffer *fb = NULL, *old_fb = NULL;
1807 unsigned int fb_width, fb_height;
1810 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1814 * First, find the plane, crtc, and fb objects. If not available,
1815 * we don't bother to call the driver.
1817 obj = drm_mode_object_find(dev, plane_req->plane_id,
1818 DRM_MODE_OBJECT_PLANE);
1820 DRM_DEBUG_KMS("Unknown plane ID %d\n",
1821 plane_req->plane_id);
1824 plane = obj_to_plane(obj);
1826 /* No fb means shut it down */
1827 if (!plane_req->fb_id) {
1828 drm_modeset_lock_all(dev);
1830 plane->funcs->disable_plane(plane);
1833 drm_modeset_unlock_all(dev);
1837 obj = drm_mode_object_find(dev, plane_req->crtc_id,
1838 DRM_MODE_OBJECT_CRTC);
1840 DRM_DEBUG_KMS("Unknown crtc ID %d\n",
1841 plane_req->crtc_id);
1845 crtc = obj_to_crtc(obj);
1847 fb = drm_framebuffer_lookup(dev, plane_req->fb_id);
1849 DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
1855 /* Check whether this plane supports the fb pixel format. */
1856 for (i = 0; i < plane->format_count; i++)
1857 if (fb->pixel_format == plane->format_types[i])
1859 if (i == plane->format_count) {
1860 DRM_DEBUG_KMS("Invalid pixel format %s\n",
1861 drm_get_format_name(fb->pixel_format));
1866 fb_width = fb->width << 16;
1867 fb_height = fb->height << 16;
1869 /* Make sure source coordinates are inside the fb. */
1870 if (plane_req->src_w > fb_width ||
1871 plane_req->src_x > fb_width - plane_req->src_w ||
1872 plane_req->src_h > fb_height ||
1873 plane_req->src_y > fb_height - plane_req->src_h) {
1874 DRM_DEBUG_KMS("Invalid source coordinates "
1875 "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
1876 plane_req->src_w >> 16,
1877 ((plane_req->src_w & 0xffff) * 15625) >> 10,
1878 plane_req->src_h >> 16,
1879 ((plane_req->src_h & 0xffff) * 15625) >> 10,
1880 plane_req->src_x >> 16,
1881 ((plane_req->src_x & 0xffff) * 15625) >> 10,
1882 plane_req->src_y >> 16,
1883 ((plane_req->src_y & 0xffff) * 15625) >> 10);
1888 /* Give drivers some help against integer overflows */
1889 if (plane_req->crtc_w > INT_MAX ||
1890 plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w ||
1891 plane_req->crtc_h > INT_MAX ||
1892 plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) {
1893 DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
1894 plane_req->crtc_w, plane_req->crtc_h,
1895 plane_req->crtc_x, plane_req->crtc_y);
1900 drm_modeset_lock_all(dev);
1901 ret = plane->funcs->update_plane(plane, crtc, fb,
1902 plane_req->crtc_x, plane_req->crtc_y,
1903 plane_req->crtc_w, plane_req->crtc_h,
1904 plane_req->src_x, plane_req->src_y,
1905 plane_req->src_w, plane_req->src_h);
1912 drm_modeset_unlock_all(dev);
1916 drm_framebuffer_unreference(fb);
1918 drm_framebuffer_unreference(old_fb);
1924 * drm_mode_set_config_internal - helper to call ->set_config
1925 * @set: modeset config to set
1927 * This is a little helper to wrap internal calls to the ->set_config driver
1928 * interface. The only thing it adds is correct refcounting dance.
1930 int drm_mode_set_config_internal(struct drm_mode_set *set)
1932 struct drm_crtc *crtc = set->crtc;
1933 struct drm_framebuffer *fb, *old_fb;
1939 ret = crtc->funcs->set_config(set);
1942 drm_framebuffer_unreference(old_fb);
1944 drm_framebuffer_reference(fb);
1949 EXPORT_SYMBOL(drm_mode_set_config_internal);
1952 * drm_mode_setcrtc - set CRTC configuration
1953 * @dev: drm device for the ioctl
1954 * @data: data pointer for the ioctl
1955 * @file_priv: drm file for the ioctl call
1957 * Build a new CRTC configuration based on user request.
1959 * Called by the user via ioctl.
1962 * Zero on success, errno on failure.
1964 int drm_mode_setcrtc(struct drm_device *dev, void *data,
1965 struct drm_file *file_priv)
1967 struct drm_mode_config *config = &dev->mode_config;
1968 struct drm_mode_crtc *crtc_req = data;
1969 struct drm_mode_object *obj;
1970 struct drm_crtc *crtc;
1971 struct drm_connector **connector_set = NULL, *connector;
1972 struct drm_framebuffer *fb = NULL;
1973 struct drm_display_mode *mode = NULL;
1974 struct drm_mode_set set;
1975 uint32_t __user *set_connectors_ptr;
1979 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1982 /* For some reason crtc x/y offsets are signed internally. */
1983 if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX)
1986 drm_modeset_lock_all(dev);
1987 obj = drm_mode_object_find(dev, crtc_req->crtc_id,
1988 DRM_MODE_OBJECT_CRTC);
1990 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
1994 crtc = obj_to_crtc(obj);
1995 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
1997 if (crtc_req->mode_valid) {
1998 int hdisplay, vdisplay;
1999 /* If we have a mode we need a framebuffer. */
2000 /* If we pass -1, set the mode with the currently bound fb */
2001 if (crtc_req->fb_id == -1) {
2003 DRM_DEBUG_KMS("CRTC doesn't have current FB\n");
2008 /* Make refcounting symmetric with the lookup path. */
2009 drm_framebuffer_reference(fb);
2011 fb = drm_framebuffer_lookup(dev, crtc_req->fb_id);
2013 DRM_DEBUG_KMS("Unknown FB ID%d\n",
2020 mode = drm_mode_create(dev);
2026 ret = drm_crtc_convert_umode(mode, &crtc_req->mode);
2028 DRM_DEBUG_KMS("Invalid mode\n");
2032 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
2034 hdisplay = mode->hdisplay;
2035 vdisplay = mode->vdisplay;
2037 if (crtc->invert_dimensions)
2038 swap(hdisplay, vdisplay);
2040 if (hdisplay > fb->width ||
2041 vdisplay > fb->height ||
2042 crtc_req->x > fb->width - hdisplay ||
2043 crtc_req->y > fb->height - vdisplay) {
2044 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
2045 fb->width, fb->height,
2046 hdisplay, vdisplay, crtc_req->x, crtc_req->y,
2047 crtc->invert_dimensions ? " (inverted)" : "");
2053 if (crtc_req->count_connectors == 0 && mode) {
2054 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
2059 if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
2060 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
2061 crtc_req->count_connectors);
2066 if (crtc_req->count_connectors > 0) {
2069 /* Avoid unbounded kernel memory allocation */
2070 if (crtc_req->count_connectors > config->num_connector) {
2075 connector_set = kmalloc(crtc_req->count_connectors *
2076 sizeof(struct drm_connector *),
2078 if (!connector_set) {
2083 for (i = 0; i < crtc_req->count_connectors; i++) {
2084 set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr;
2085 if (get_user(out_id, &set_connectors_ptr[i])) {
2090 obj = drm_mode_object_find(dev, out_id,
2091 DRM_MODE_OBJECT_CONNECTOR);
2093 DRM_DEBUG_KMS("Connector id %d unknown\n",
2098 connector = obj_to_connector(obj);
2099 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
2101 drm_get_connector_name(connector));
2103 connector_set[i] = connector;
2108 set.x = crtc_req->x;
2109 set.y = crtc_req->y;
2111 set.connectors = connector_set;
2112 set.num_connectors = crtc_req->count_connectors;
2114 ret = drm_mode_set_config_internal(&set);
2118 drm_framebuffer_unreference(fb);
2120 kfree(connector_set);
2121 drm_mode_destroy(dev, mode);
2122 drm_modeset_unlock_all(dev);
2126 int drm_mode_cursor_ioctl(struct drm_device *dev,
2127 void *data, struct drm_file *file_priv)
2129 struct drm_mode_cursor *req = data;
2130 struct drm_mode_object *obj;
2131 struct drm_crtc *crtc;
2134 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2137 if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags))
2140 obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
2142 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
2145 crtc = obj_to_crtc(obj);
2147 mutex_lock(&crtc->mutex);
2148 if (req->flags & DRM_MODE_CURSOR_BO) {
2149 if (!crtc->funcs->cursor_set) {
2153 /* Turns off the cursor if handle is 0 */
2154 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
2155 req->width, req->height);
2158 if (req->flags & DRM_MODE_CURSOR_MOVE) {
2159 if (crtc->funcs->cursor_move) {
2160 ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
2167 mutex_unlock(&crtc->mutex);
2172 /* Original addfb only supported RGB formats, so figure out which one */
2173 uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth)
2179 fmt = DRM_FORMAT_C8;
2183 fmt = DRM_FORMAT_XRGB1555;
2185 fmt = DRM_FORMAT_RGB565;
2188 fmt = DRM_FORMAT_RGB888;
2192 fmt = DRM_FORMAT_XRGB8888;
2193 else if (depth == 30)
2194 fmt = DRM_FORMAT_XRGB2101010;
2196 fmt = DRM_FORMAT_ARGB8888;
2199 DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n");
2200 fmt = DRM_FORMAT_XRGB8888;
2206 EXPORT_SYMBOL(drm_mode_legacy_fb_format);
2209 * drm_mode_addfb - add an FB to the graphics configuration
2210 * @dev: drm device for the ioctl
2211 * @data: data pointer for the ioctl
2212 * @file_priv: drm file for the ioctl call
2214 * Add a new FB to the specified CRTC, given a user request.
2216 * Called by the user via ioctl.
2219 * Zero on success, errno on failure.
2221 int drm_mode_addfb(struct drm_device *dev,
2222 void *data, struct drm_file *file_priv)
2224 struct drm_mode_fb_cmd *or = data;
2225 struct drm_mode_fb_cmd2 r = {};
2226 struct drm_mode_config *config = &dev->mode_config;
2227 struct drm_framebuffer *fb;
2230 /* Use new struct with format internally */
2231 r.fb_id = or->fb_id;
2232 r.width = or->width;
2233 r.height = or->height;
2234 r.pitches[0] = or->pitch;
2235 r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth);
2236 r.handles[0] = or->handle;
2238 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2241 if ((config->min_width > r.width) || (r.width > config->max_width))
2244 if ((config->min_height > r.height) || (r.height > config->max_height))
2247 fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r);
2249 DRM_DEBUG_KMS("could not create framebuffer\n");
2253 mutex_lock(&file_priv->fbs_lock);
2254 or->fb_id = fb->base.id;
2255 list_add(&fb->filp_head, &file_priv->fbs);
2256 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
2257 mutex_unlock(&file_priv->fbs_lock);
2262 static int format_check(const struct drm_mode_fb_cmd2 *r)
2264 uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN;
2268 case DRM_FORMAT_RGB332:
2269 case DRM_FORMAT_BGR233:
2270 case DRM_FORMAT_XRGB4444:
2271 case DRM_FORMAT_XBGR4444:
2272 case DRM_FORMAT_RGBX4444:
2273 case DRM_FORMAT_BGRX4444:
2274 case DRM_FORMAT_ARGB4444:
2275 case DRM_FORMAT_ABGR4444:
2276 case DRM_FORMAT_RGBA4444:
2277 case DRM_FORMAT_BGRA4444:
2278 case DRM_FORMAT_XRGB1555:
2279 case DRM_FORMAT_XBGR1555:
2280 case DRM_FORMAT_RGBX5551:
2281 case DRM_FORMAT_BGRX5551:
2282 case DRM_FORMAT_ARGB1555:
2283 case DRM_FORMAT_ABGR1555:
2284 case DRM_FORMAT_RGBA5551:
2285 case DRM_FORMAT_BGRA5551:
2286 case DRM_FORMAT_RGB565:
2287 case DRM_FORMAT_BGR565:
2288 case DRM_FORMAT_RGB888:
2289 case DRM_FORMAT_BGR888:
2290 case DRM_FORMAT_XRGB8888:
2291 case DRM_FORMAT_XBGR8888:
2292 case DRM_FORMAT_RGBX8888:
2293 case DRM_FORMAT_BGRX8888:
2294 case DRM_FORMAT_ARGB8888:
2295 case DRM_FORMAT_ABGR8888:
2296 case DRM_FORMAT_RGBA8888:
2297 case DRM_FORMAT_BGRA8888:
2298 case DRM_FORMAT_XRGB2101010:
2299 case DRM_FORMAT_XBGR2101010:
2300 case DRM_FORMAT_RGBX1010102:
2301 case DRM_FORMAT_BGRX1010102:
2302 case DRM_FORMAT_ARGB2101010:
2303 case DRM_FORMAT_ABGR2101010:
2304 case DRM_FORMAT_RGBA1010102:
2305 case DRM_FORMAT_BGRA1010102:
2306 case DRM_FORMAT_YUYV:
2307 case DRM_FORMAT_YVYU:
2308 case DRM_FORMAT_UYVY:
2309 case DRM_FORMAT_VYUY:
2310 case DRM_FORMAT_AYUV:
2311 case DRM_FORMAT_NV12:
2312 case DRM_FORMAT_NV21:
2313 case DRM_FORMAT_NV16:
2314 case DRM_FORMAT_NV61:
2315 case DRM_FORMAT_NV24:
2316 case DRM_FORMAT_NV42:
2317 case DRM_FORMAT_YUV410:
2318 case DRM_FORMAT_YVU410:
2319 case DRM_FORMAT_YUV411:
2320 case DRM_FORMAT_YVU411:
2321 case DRM_FORMAT_YUV420:
2322 case DRM_FORMAT_YVU420:
2323 case DRM_FORMAT_YUV422:
2324 case DRM_FORMAT_YVU422:
2325 case DRM_FORMAT_YUV444:
2326 case DRM_FORMAT_YVU444:
2333 static int framebuffer_check(const struct drm_mode_fb_cmd2 *r)
2335 int ret, hsub, vsub, num_planes, i;
2337 ret = format_check(r);
2339 DRM_DEBUG_KMS("bad framebuffer format %s\n",
2340 drm_get_format_name(r->pixel_format));
2344 hsub = drm_format_horz_chroma_subsampling(r->pixel_format);
2345 vsub = drm_format_vert_chroma_subsampling(r->pixel_format);
2346 num_planes = drm_format_num_planes(r->pixel_format);
2348 if (r->width == 0 || r->width % hsub) {
2349 DRM_DEBUG_KMS("bad framebuffer width %u\n", r->height);
2353 if (r->height == 0 || r->height % vsub) {
2354 DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height);
2358 for (i = 0; i < num_planes; i++) {
2359 unsigned int width = r->width / (i != 0 ? hsub : 1);
2360 unsigned int height = r->height / (i != 0 ? vsub : 1);
2361 unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i);
2363 if (!r->handles[i]) {
2364 DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i);
2368 if ((uint64_t) width * cpp > UINT_MAX)
2371 if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX)
2374 if (r->pitches[i] < width * cpp) {
2375 DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i);
2384 * drm_mode_addfb2 - add an FB to the graphics configuration
2385 * @dev: drm device for the ioctl
2386 * @data: data pointer for the ioctl
2387 * @file_priv: drm file for the ioctl call
2389 * Add a new FB to the specified CRTC, given a user request with format.
2391 * Called by the user via ioctl.
2394 * Zero on success, errno on failure.
2396 int drm_mode_addfb2(struct drm_device *dev,
2397 void *data, struct drm_file *file_priv)
2399 struct drm_mode_fb_cmd2 *r = data;
2400 struct drm_mode_config *config = &dev->mode_config;
2401 struct drm_framebuffer *fb;
2404 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2407 if (r->flags & ~DRM_MODE_FB_INTERLACED) {
2408 DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags);
2412 if ((config->min_width > r->width) || (r->width > config->max_width)) {
2413 DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n",
2414 r->width, config->min_width, config->max_width);
2417 if ((config->min_height > r->height) || (r->height > config->max_height)) {
2418 DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n",
2419 r->height, config->min_height, config->max_height);
2423 ret = framebuffer_check(r);
2427 fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
2429 DRM_DEBUG_KMS("could not create framebuffer\n");
2433 mutex_lock(&file_priv->fbs_lock);
2434 r->fb_id = fb->base.id;
2435 list_add(&fb->filp_head, &file_priv->fbs);
2436 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
2437 mutex_unlock(&file_priv->fbs_lock);
2444 * drm_mode_rmfb - remove an FB from the configuration
2445 * @dev: drm device for the ioctl
2446 * @data: data pointer for the ioctl
2447 * @file_priv: drm file for the ioctl call
2449 * Remove the FB specified by the user.
2451 * Called by the user via ioctl.
2454 * Zero on success, errno on failure.
2456 int drm_mode_rmfb(struct drm_device *dev,
2457 void *data, struct drm_file *file_priv)
2459 struct drm_framebuffer *fb = NULL;
2460 struct drm_framebuffer *fbl = NULL;
2461 uint32_t *id = data;
2464 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2467 mutex_lock(&file_priv->fbs_lock);
2468 mutex_lock(&dev->mode_config.fb_lock);
2469 fb = __drm_framebuffer_lookup(dev, *id);
2473 list_for_each_entry(fbl, &file_priv->fbs, filp_head)
2479 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
2480 __drm_framebuffer_unregister(dev, fb);
2482 list_del_init(&fb->filp_head);
2483 mutex_unlock(&dev->mode_config.fb_lock);
2484 mutex_unlock(&file_priv->fbs_lock);
2486 drm_framebuffer_remove(fb);
2491 mutex_unlock(&dev->mode_config.fb_lock);
2492 mutex_unlock(&file_priv->fbs_lock);
2498 * drm_mode_getfb - get FB info
2499 * @dev: drm device for the ioctl
2500 * @data: data pointer for the ioctl
2501 * @file_priv: drm file for the ioctl call
2503 * Lookup the FB given its ID and return info about it.
2505 * Called by the user via ioctl.
2508 * Zero on success, errno on failure.
2510 int drm_mode_getfb(struct drm_device *dev,
2511 void *data, struct drm_file *file_priv)
2513 struct drm_mode_fb_cmd *r = data;
2514 struct drm_framebuffer *fb;
2517 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2520 fb = drm_framebuffer_lookup(dev, r->fb_id);
2524 r->height = fb->height;
2525 r->width = fb->width;
2526 r->depth = fb->depth;
2527 r->bpp = fb->bits_per_pixel;
2528 r->pitch = fb->pitches[0];
2529 if (fb->funcs->create_handle)
2530 ret = fb->funcs->create_handle(fb, file_priv, &r->handle);
2534 drm_framebuffer_unreference(fb);
2539 int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
2540 void *data, struct drm_file *file_priv)
2542 struct drm_clip_rect __user *clips_ptr;
2543 struct drm_clip_rect *clips = NULL;
2544 struct drm_mode_fb_dirty_cmd *r = data;
2545 struct drm_framebuffer *fb;
2550 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2553 fb = drm_framebuffer_lookup(dev, r->fb_id);
2557 num_clips = r->num_clips;
2558 clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr;
2560 if (!num_clips != !clips_ptr) {
2565 flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
2567 /* If userspace annotates copy, clips must come in pairs */
2568 if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
2573 if (num_clips && clips_ptr) {
2574 if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) {
2578 clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
2584 ret = copy_from_user(clips, clips_ptr,
2585 num_clips * sizeof(*clips));
2592 if (fb->funcs->dirty) {
2593 drm_modeset_lock_all(dev);
2594 ret = fb->funcs->dirty(fb, file_priv, flags, r->color,
2596 drm_modeset_unlock_all(dev);
2604 drm_framebuffer_unreference(fb);
2611 * drm_fb_release - remove and free the FBs on this file
2612 * @priv: drm file for the ioctl
2614 * Destroy all the FBs associated with @filp.
2616 * Called by the user via ioctl.
2619 * Zero on success, errno on failure.
2621 void drm_fb_release(struct drm_file *priv)
2623 struct drm_device *dev = priv->minor->dev;
2624 struct drm_framebuffer *fb, *tfb;
2626 mutex_lock(&priv->fbs_lock);
2627 list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
2629 mutex_lock(&dev->mode_config.fb_lock);
2630 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
2631 __drm_framebuffer_unregister(dev, fb);
2632 mutex_unlock(&dev->mode_config.fb_lock);
2634 list_del_init(&fb->filp_head);
2636 /* This will also drop the fpriv->fbs reference. */
2637 drm_framebuffer_remove(fb);
2639 mutex_unlock(&priv->fbs_lock);
2642 struct drm_property *drm_property_create(struct drm_device *dev, int flags,
2643 const char *name, int num_values)
2645 struct drm_property *property = NULL;
2648 property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
2653 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
2654 if (!property->values)
2658 ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
2662 property->flags = flags;
2663 property->num_values = num_values;
2664 INIT_LIST_HEAD(&property->enum_blob_list);
2667 strncpy(property->name, name, DRM_PROP_NAME_LEN);
2668 property->name[DRM_PROP_NAME_LEN-1] = '\0';
2671 list_add_tail(&property->head, &dev->mode_config.property_list);
2674 kfree(property->values);
2678 EXPORT_SYMBOL(drm_property_create);
2680 struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
2682 const struct drm_prop_enum_list *props,
2685 struct drm_property *property;
2688 flags |= DRM_MODE_PROP_ENUM;
2690 property = drm_property_create(dev, flags, name, num_values);
2694 for (i = 0; i < num_values; i++) {
2695 ret = drm_property_add_enum(property, i,
2699 drm_property_destroy(dev, property);
2706 EXPORT_SYMBOL(drm_property_create_enum);
2708 struct drm_property *drm_property_create_bitmask(struct drm_device *dev,
2709 int flags, const char *name,
2710 const struct drm_prop_enum_list *props,
2713 struct drm_property *property;
2716 flags |= DRM_MODE_PROP_BITMASK;
2718 property = drm_property_create(dev, flags, name, num_values);
2722 for (i = 0; i < num_values; i++) {
2723 ret = drm_property_add_enum(property, i,
2727 drm_property_destroy(dev, property);
2734 EXPORT_SYMBOL(drm_property_create_bitmask);
2736 struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
2738 uint64_t min, uint64_t max)
2740 struct drm_property *property;
2742 flags |= DRM_MODE_PROP_RANGE;
2744 property = drm_property_create(dev, flags, name, 2);
2748 property->values[0] = min;
2749 property->values[1] = max;
2753 EXPORT_SYMBOL(drm_property_create_range);
2755 int drm_property_add_enum(struct drm_property *property, int index,
2756 uint64_t value, const char *name)
2758 struct drm_property_enum *prop_enum;
2760 if (!(property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)))
2764 * Bitmask enum properties have the additional constraint of values
2767 if ((property->flags & DRM_MODE_PROP_BITMASK) && (value > 63))
2770 if (!list_empty(&property->enum_blob_list)) {
2771 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2772 if (prop_enum->value == value) {
2773 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2774 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2780 prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
2784 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2785 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2786 prop_enum->value = value;
2788 property->values[index] = value;
2789 list_add_tail(&prop_enum->head, &property->enum_blob_list);
2792 EXPORT_SYMBOL(drm_property_add_enum);
2794 void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
2796 struct drm_property_enum *prop_enum, *pt;
2798 list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
2799 list_del(&prop_enum->head);
2803 if (property->num_values)
2804 kfree(property->values);
2805 drm_mode_object_put(dev, &property->base);
2806 list_del(&property->head);
2809 EXPORT_SYMBOL(drm_property_destroy);
2811 void drm_object_attach_property(struct drm_mode_object *obj,
2812 struct drm_property *property,
2815 int count = obj->properties->count;
2817 if (count == DRM_OBJECT_MAX_PROPERTY) {
2818 WARN(1, "Failed to attach object property (type: 0x%x). Please "
2819 "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time "
2820 "you see this message on the same object type.\n",
2825 obj->properties->ids[count] = property->base.id;
2826 obj->properties->values[count] = init_val;
2827 obj->properties->count++;
2829 EXPORT_SYMBOL(drm_object_attach_property);
2831 int drm_object_property_set_value(struct drm_mode_object *obj,
2832 struct drm_property *property, uint64_t val)
2836 for (i = 0; i < obj->properties->count; i++) {
2837 if (obj->properties->ids[i] == property->base.id) {
2838 obj->properties->values[i] = val;
2845 EXPORT_SYMBOL(drm_object_property_set_value);
2847 int drm_object_property_get_value(struct drm_mode_object *obj,
2848 struct drm_property *property, uint64_t *val)
2852 for (i = 0; i < obj->properties->count; i++) {
2853 if (obj->properties->ids[i] == property->base.id) {
2854 *val = obj->properties->values[i];
2861 EXPORT_SYMBOL(drm_object_property_get_value);
2863 int drm_mode_getproperty_ioctl(struct drm_device *dev,
2864 void *data, struct drm_file *file_priv)
2866 struct drm_mode_object *obj;
2867 struct drm_mode_get_property *out_resp = data;
2868 struct drm_property *property;
2871 int value_count = 0;
2874 struct drm_property_enum *prop_enum;
2875 struct drm_mode_property_enum __user *enum_ptr;
2876 struct drm_property_blob *prop_blob;
2877 uint32_t __user *blob_id_ptr;
2878 uint64_t __user *values_ptr;
2879 uint32_t __user *blob_length_ptr;
2881 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2884 drm_modeset_lock_all(dev);
2885 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2890 property = obj_to_property(obj);
2892 if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) {
2893 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
2895 } else if (property->flags & DRM_MODE_PROP_BLOB) {
2896 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
2900 value_count = property->num_values;
2902 strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
2903 out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
2904 out_resp->flags = property->flags;
2906 if ((out_resp->count_values >= value_count) && value_count) {
2907 values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr;
2908 for (i = 0; i < value_count; i++) {
2909 if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
2915 out_resp->count_values = value_count;
2917 if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) {
2918 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
2920 enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr;
2921 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2923 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
2928 if (copy_to_user(&enum_ptr[copied].name,
2929 &prop_enum->name, DRM_PROP_NAME_LEN)) {
2936 out_resp->count_enum_blobs = enum_count;
2939 if (property->flags & DRM_MODE_PROP_BLOB) {
2940 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
2942 blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr;
2943 blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr;
2945 list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
2946 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
2951 if (put_user(prop_blob->length, blob_length_ptr + copied)) {
2959 out_resp->count_enum_blobs = blob_count;
2962 drm_modeset_unlock_all(dev);
2966 static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
2969 struct drm_property_blob *blob;
2972 if (!length || !data)
2975 blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
2979 ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
2985 blob->length = length;
2987 memcpy(blob->data, data, length);
2989 list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
2993 static void drm_property_destroy_blob(struct drm_device *dev,
2994 struct drm_property_blob *blob)
2996 drm_mode_object_put(dev, &blob->base);
2997 list_del(&blob->head);
3001 int drm_mode_getblob_ioctl(struct drm_device *dev,
3002 void *data, struct drm_file *file_priv)
3004 struct drm_mode_object *obj;
3005 struct drm_mode_get_blob *out_resp = data;
3006 struct drm_property_blob *blob;
3008 void __user *blob_ptr;
3010 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3013 drm_modeset_lock_all(dev);
3014 obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
3019 blob = obj_to_blob(obj);
3021 if (out_resp->length == blob->length) {
3022 blob_ptr = (void __user *)(unsigned long)out_resp->data;
3023 if (copy_to_user(blob_ptr, blob->data, blob->length)){
3028 out_resp->length = blob->length;
3031 drm_modeset_unlock_all(dev);
3035 int drm_mode_connector_update_edid_property(struct drm_connector *connector,
3038 struct drm_device *dev = connector->dev;
3041 if (connector->edid_blob_ptr)
3042 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
3044 /* Delete edid, when there is none. */
3046 connector->edid_blob_ptr = NULL;
3047 ret = drm_object_property_set_value(&connector->base, dev->mode_config.edid_property, 0);
3051 size = EDID_LENGTH * (1 + edid->extensions);
3052 connector->edid_blob_ptr = drm_property_create_blob(connector->dev,
3054 if (!connector->edid_blob_ptr)
3057 ret = drm_object_property_set_value(&connector->base,
3058 dev->mode_config.edid_property,
3059 connector->edid_blob_ptr->base.id);
3063 EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
3065 static bool drm_property_change_is_valid(struct drm_property *property,
3068 if (property->flags & DRM_MODE_PROP_IMMUTABLE)
3070 if (property->flags & DRM_MODE_PROP_RANGE) {
3071 if (value < property->values[0] || value > property->values[1])
3074 } else if (property->flags & DRM_MODE_PROP_BITMASK) {
3076 uint64_t valid_mask = 0;
3077 for (i = 0; i < property->num_values; i++)
3078 valid_mask |= (1ULL << property->values[i]);
3079 return !(value & ~valid_mask);
3080 } else if (property->flags & DRM_MODE_PROP_BLOB) {
3081 /* Only the driver knows */
3085 for (i = 0; i < property->num_values; i++)
3086 if (property->values[i] == value)
3092 int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
3093 void *data, struct drm_file *file_priv)
3095 struct drm_mode_connector_set_property *conn_set_prop = data;
3096 struct drm_mode_obj_set_property obj_set_prop = {
3097 .value = conn_set_prop->value,
3098 .prop_id = conn_set_prop->prop_id,
3099 .obj_id = conn_set_prop->connector_id,
3100 .obj_type = DRM_MODE_OBJECT_CONNECTOR
3103 /* It does all the locking and checking we need */
3104 return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv);
3107 static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj,
3108 struct drm_property *property,
3112 struct drm_connector *connector = obj_to_connector(obj);
3114 /* Do DPMS ourselves */
3115 if (property == connector->dev->mode_config.dpms_property) {
3116 if (connector->funcs->dpms)
3117 (*connector->funcs->dpms)(connector, (int)value);
3119 } else if (connector->funcs->set_property)
3120 ret = connector->funcs->set_property(connector, property, value);
3122 /* store the property value if successful */
3124 drm_object_property_set_value(&connector->base, property, value);
3128 static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj,
3129 struct drm_property *property,
3133 struct drm_crtc *crtc = obj_to_crtc(obj);
3135 if (crtc->funcs->set_property)
3136 ret = crtc->funcs->set_property(crtc, property, value);
3138 drm_object_property_set_value(obj, property, value);
3143 static int drm_mode_plane_set_obj_prop(struct drm_mode_object *obj,
3144 struct drm_property *property,
3148 struct drm_plane *plane = obj_to_plane(obj);
3150 if (plane->funcs->set_property)
3151 ret = plane->funcs->set_property(plane, property, value);
3153 drm_object_property_set_value(obj, property, value);
3158 int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
3159 struct drm_file *file_priv)
3161 struct drm_mode_obj_get_properties *arg = data;
3162 struct drm_mode_object *obj;
3166 int props_count = 0;
3167 uint32_t __user *props_ptr;
3168 uint64_t __user *prop_values_ptr;
3170 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3173 drm_modeset_lock_all(dev);
3175 obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
3180 if (!obj->properties) {
3185 props_count = obj->properties->count;
3187 /* This ioctl is called twice, once to determine how much space is
3188 * needed, and the 2nd time to fill it. */
3189 if ((arg->count_props >= props_count) && props_count) {
3191 props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr);
3192 prop_values_ptr = (uint64_t __user *)(unsigned long)
3193 (arg->prop_values_ptr);
3194 for (i = 0; i < props_count; i++) {
3195 if (put_user(obj->properties->ids[i],
3196 props_ptr + copied)) {
3200 if (put_user(obj->properties->values[i],
3201 prop_values_ptr + copied)) {
3208 arg->count_props = props_count;
3210 drm_modeset_unlock_all(dev);
3214 int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
3215 struct drm_file *file_priv)
3217 struct drm_mode_obj_set_property *arg = data;
3218 struct drm_mode_object *arg_obj;
3219 struct drm_mode_object *prop_obj;
3220 struct drm_property *property;
3224 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3227 drm_modeset_lock_all(dev);
3229 arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
3232 if (!arg_obj->properties)
3235 for (i = 0; i < arg_obj->properties->count; i++)
3236 if (arg_obj->properties->ids[i] == arg->prop_id)
3239 if (i == arg_obj->properties->count)
3242 prop_obj = drm_mode_object_find(dev, arg->prop_id,
3243 DRM_MODE_OBJECT_PROPERTY);
3246 property = obj_to_property(prop_obj);
3248 if (!drm_property_change_is_valid(property, arg->value))
3251 switch (arg_obj->type) {
3252 case DRM_MODE_OBJECT_CONNECTOR:
3253 ret = drm_mode_connector_set_obj_prop(arg_obj, property,
3256 case DRM_MODE_OBJECT_CRTC:
3257 ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value);
3259 case DRM_MODE_OBJECT_PLANE:
3260 ret = drm_mode_plane_set_obj_prop(arg_obj, property, arg->value);
3265 drm_modeset_unlock_all(dev);
3269 int drm_mode_connector_attach_encoder(struct drm_connector *connector,
3270 struct drm_encoder *encoder)
3274 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3275 if (connector->encoder_ids[i] == 0) {
3276 connector->encoder_ids[i] = encoder->base.id;
3282 EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
3284 void drm_mode_connector_detach_encoder(struct drm_connector *connector,
3285 struct drm_encoder *encoder)
3288 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3289 if (connector->encoder_ids[i] == encoder->base.id) {
3290 connector->encoder_ids[i] = 0;
3291 if (connector->encoder == encoder)
3292 connector->encoder = NULL;
3297 EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
3299 int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
3302 crtc->gamma_size = gamma_size;
3304 crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
3305 if (!crtc->gamma_store) {
3306 crtc->gamma_size = 0;
3312 EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
3314 int drm_mode_gamma_set_ioctl(struct drm_device *dev,
3315 void *data, struct drm_file *file_priv)
3317 struct drm_mode_crtc_lut *crtc_lut = data;
3318 struct drm_mode_object *obj;
3319 struct drm_crtc *crtc;
3320 void *r_base, *g_base, *b_base;
3324 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3327 drm_modeset_lock_all(dev);
3328 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3333 crtc = obj_to_crtc(obj);
3335 if (crtc->funcs->gamma_set == NULL) {
3340 /* memcpy into gamma store */
3341 if (crtc_lut->gamma_size != crtc->gamma_size) {
3346 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3347 r_base = crtc->gamma_store;
3348 if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
3353 g_base = r_base + size;
3354 if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
3359 b_base = g_base + size;
3360 if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
3365 crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
3368 drm_modeset_unlock_all(dev);
3373 int drm_mode_gamma_get_ioctl(struct drm_device *dev,
3374 void *data, struct drm_file *file_priv)
3376 struct drm_mode_crtc_lut *crtc_lut = data;
3377 struct drm_mode_object *obj;
3378 struct drm_crtc *crtc;
3379 void *r_base, *g_base, *b_base;
3383 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3386 drm_modeset_lock_all(dev);
3387 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3392 crtc = obj_to_crtc(obj);
3394 /* memcpy into gamma store */
3395 if (crtc_lut->gamma_size != crtc->gamma_size) {
3400 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3401 r_base = crtc->gamma_store;
3402 if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
3407 g_base = r_base + size;
3408 if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
3413 b_base = g_base + size;
3414 if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
3419 drm_modeset_unlock_all(dev);
3423 int drm_mode_page_flip_ioctl(struct drm_device *dev,
3424 void *data, struct drm_file *file_priv)
3426 struct drm_mode_crtc_page_flip *page_flip = data;
3427 struct drm_mode_object *obj;
3428 struct drm_crtc *crtc;
3429 struct drm_framebuffer *fb = NULL, *old_fb = NULL;
3430 struct drm_pending_vblank_event *e = NULL;
3431 unsigned long flags;
3432 int hdisplay, vdisplay;
3435 if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
3436 page_flip->reserved != 0)
3439 obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
3442 crtc = obj_to_crtc(obj);
3444 mutex_lock(&crtc->mutex);
3445 if (crtc->fb == NULL) {
3446 /* The framebuffer is currently unbound, presumably
3447 * due to a hotplug event, that userspace has not
3454 if (crtc->funcs->page_flip == NULL)
3457 fb = drm_framebuffer_lookup(dev, page_flip->fb_id);
3461 hdisplay = crtc->mode.hdisplay;
3462 vdisplay = crtc->mode.vdisplay;
3464 if (crtc->invert_dimensions)
3465 swap(hdisplay, vdisplay);
3467 if (hdisplay > fb->width ||
3468 vdisplay > fb->height ||
3469 crtc->x > fb->width - hdisplay ||
3470 crtc->y > fb->height - vdisplay) {
3471 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
3472 fb->width, fb->height, hdisplay, vdisplay, crtc->x, crtc->y,
3473 crtc->invert_dimensions ? " (inverted)" : "");
3478 if (crtc->fb->pixel_format != fb->pixel_format) {
3479 DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n");
3484 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3486 spin_lock_irqsave(&dev->event_lock, flags);
3487 if (file_priv->event_space < sizeof e->event) {
3488 spin_unlock_irqrestore(&dev->event_lock, flags);
3491 file_priv->event_space -= sizeof e->event;
3492 spin_unlock_irqrestore(&dev->event_lock, flags);
3494 e = kzalloc(sizeof *e, GFP_KERNEL);
3496 spin_lock_irqsave(&dev->event_lock, flags);
3497 file_priv->event_space += sizeof e->event;
3498 spin_unlock_irqrestore(&dev->event_lock, flags);
3502 e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
3503 e->event.base.length = sizeof e->event;
3504 e->event.user_data = page_flip->user_data;
3505 e->base.event = &e->event.base;
3506 e->base.file_priv = file_priv;
3508 (void (*) (struct drm_pending_event *)) kfree;
3512 ret = crtc->funcs->page_flip(crtc, fb, e);
3514 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3515 spin_lock_irqsave(&dev->event_lock, flags);
3516 file_priv->event_space += sizeof e->event;
3517 spin_unlock_irqrestore(&dev->event_lock, flags);
3520 /* Keep the old fb, don't unref it. */
3524 * Warn if the driver hasn't properly updated the crtc->fb
3525 * field to reflect that the new framebuffer is now used.
3526 * Failing to do so will screw with the reference counting
3529 WARN_ON(crtc->fb != fb);
3530 /* Unref only the old framebuffer. */
3536 drm_framebuffer_unreference(fb);
3538 drm_framebuffer_unreference(old_fb);
3539 mutex_unlock(&crtc->mutex);
3544 void drm_mode_config_reset(struct drm_device *dev)
3546 struct drm_crtc *crtc;
3547 struct drm_encoder *encoder;
3548 struct drm_connector *connector;
3550 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
3551 if (crtc->funcs->reset)
3552 crtc->funcs->reset(crtc);
3554 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
3555 if (encoder->funcs->reset)
3556 encoder->funcs->reset(encoder);
3558 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
3559 connector->status = connector_status_unknown;
3561 if (connector->funcs->reset)
3562 connector->funcs->reset(connector);
3565 EXPORT_SYMBOL(drm_mode_config_reset);
3567 int drm_mode_create_dumb_ioctl(struct drm_device *dev,
3568 void *data, struct drm_file *file_priv)
3570 struct drm_mode_create_dumb *args = data;
3572 if (!dev->driver->dumb_create)
3574 return dev->driver->dumb_create(file_priv, dev, args);
3577 int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
3578 void *data, struct drm_file *file_priv)
3580 struct drm_mode_map_dumb *args = data;
3582 /* call driver ioctl to get mmap offset */
3583 if (!dev->driver->dumb_map_offset)
3586 return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset);
3589 int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
3590 void *data, struct drm_file *file_priv)
3592 struct drm_mode_destroy_dumb *args = data;
3594 if (!dev->driver->dumb_destroy)
3597 return dev->driver->dumb_destroy(file_priv, dev, args->handle);
3601 * Just need to support RGB formats here for compat with code that doesn't
3602 * use pixel formats directly yet.
3604 void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
3609 case DRM_FORMAT_RGB332:
3610 case DRM_FORMAT_BGR233:
3614 case DRM_FORMAT_XRGB1555:
3615 case DRM_FORMAT_XBGR1555:
3616 case DRM_FORMAT_RGBX5551:
3617 case DRM_FORMAT_BGRX5551:
3618 case DRM_FORMAT_ARGB1555:
3619 case DRM_FORMAT_ABGR1555:
3620 case DRM_FORMAT_RGBA5551:
3621 case DRM_FORMAT_BGRA5551:
3625 case DRM_FORMAT_RGB565:
3626 case DRM_FORMAT_BGR565:
3630 case DRM_FORMAT_RGB888:
3631 case DRM_FORMAT_BGR888:
3635 case DRM_FORMAT_XRGB8888:
3636 case DRM_FORMAT_XBGR8888:
3637 case DRM_FORMAT_RGBX8888:
3638 case DRM_FORMAT_BGRX8888:
3642 case DRM_FORMAT_XRGB2101010:
3643 case DRM_FORMAT_XBGR2101010:
3644 case DRM_FORMAT_RGBX1010102:
3645 case DRM_FORMAT_BGRX1010102:
3646 case DRM_FORMAT_ARGB2101010:
3647 case DRM_FORMAT_ABGR2101010:
3648 case DRM_FORMAT_RGBA1010102:
3649 case DRM_FORMAT_BGRA1010102:
3653 case DRM_FORMAT_ARGB8888:
3654 case DRM_FORMAT_ABGR8888:
3655 case DRM_FORMAT_RGBA8888:
3656 case DRM_FORMAT_BGRA8888:
3661 DRM_DEBUG_KMS("unsupported pixel format\n");
3667 EXPORT_SYMBOL(drm_fb_get_bpp_depth);
3670 * drm_format_num_planes - get the number of planes for format
3671 * @format: pixel format (DRM_FORMAT_*)
3674 * The number of planes used by the specified pixel format.
3676 int drm_format_num_planes(uint32_t format)
3679 case DRM_FORMAT_YUV410:
3680 case DRM_FORMAT_YVU410:
3681 case DRM_FORMAT_YUV411:
3682 case DRM_FORMAT_YVU411:
3683 case DRM_FORMAT_YUV420:
3684 case DRM_FORMAT_YVU420:
3685 case DRM_FORMAT_YUV422:
3686 case DRM_FORMAT_YVU422:
3687 case DRM_FORMAT_YUV444:
3688 case DRM_FORMAT_YVU444:
3690 case DRM_FORMAT_NV12:
3691 case DRM_FORMAT_NV21:
3692 case DRM_FORMAT_NV16:
3693 case DRM_FORMAT_NV61:
3694 case DRM_FORMAT_NV24:
3695 case DRM_FORMAT_NV42:
3701 EXPORT_SYMBOL(drm_format_num_planes);
3704 * drm_format_plane_cpp - determine the bytes per pixel value
3705 * @format: pixel format (DRM_FORMAT_*)
3706 * @plane: plane index
3709 * The bytes per pixel value for the specified plane.
3711 int drm_format_plane_cpp(uint32_t format, int plane)
3716 if (plane >= drm_format_num_planes(format))
3720 case DRM_FORMAT_YUYV:
3721 case DRM_FORMAT_YVYU:
3722 case DRM_FORMAT_UYVY:
3723 case DRM_FORMAT_VYUY:
3725 case DRM_FORMAT_NV12:
3726 case DRM_FORMAT_NV21:
3727 case DRM_FORMAT_NV16:
3728 case DRM_FORMAT_NV61:
3729 case DRM_FORMAT_NV24:
3730 case DRM_FORMAT_NV42:
3731 return plane ? 2 : 1;
3732 case DRM_FORMAT_YUV410:
3733 case DRM_FORMAT_YVU410:
3734 case DRM_FORMAT_YUV411:
3735 case DRM_FORMAT_YVU411:
3736 case DRM_FORMAT_YUV420:
3737 case DRM_FORMAT_YVU420:
3738 case DRM_FORMAT_YUV422:
3739 case DRM_FORMAT_YVU422:
3740 case DRM_FORMAT_YUV444:
3741 case DRM_FORMAT_YVU444:
3744 drm_fb_get_bpp_depth(format, &depth, &bpp);
3748 EXPORT_SYMBOL(drm_format_plane_cpp);
3751 * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor
3752 * @format: pixel format (DRM_FORMAT_*)
3755 * The horizontal chroma subsampling factor for the
3756 * specified pixel format.
3758 int drm_format_horz_chroma_subsampling(uint32_t format)
3761 case DRM_FORMAT_YUV411:
3762 case DRM_FORMAT_YVU411:
3763 case DRM_FORMAT_YUV410:
3764 case DRM_FORMAT_YVU410:
3766 case DRM_FORMAT_YUYV:
3767 case DRM_FORMAT_YVYU:
3768 case DRM_FORMAT_UYVY:
3769 case DRM_FORMAT_VYUY:
3770 case DRM_FORMAT_NV12:
3771 case DRM_FORMAT_NV21:
3772 case DRM_FORMAT_NV16:
3773 case DRM_FORMAT_NV61:
3774 case DRM_FORMAT_YUV422:
3775 case DRM_FORMAT_YVU422:
3776 case DRM_FORMAT_YUV420:
3777 case DRM_FORMAT_YVU420:
3783 EXPORT_SYMBOL(drm_format_horz_chroma_subsampling);
3786 * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor
3787 * @format: pixel format (DRM_FORMAT_*)
3790 * The vertical chroma subsampling factor for the
3791 * specified pixel format.
3793 int drm_format_vert_chroma_subsampling(uint32_t format)
3796 case DRM_FORMAT_YUV410:
3797 case DRM_FORMAT_YVU410:
3799 case DRM_FORMAT_YUV420:
3800 case DRM_FORMAT_YVU420:
3801 case DRM_FORMAT_NV12:
3802 case DRM_FORMAT_NV21:
3808 EXPORT_SYMBOL(drm_format_vert_chroma_subsampling);
3811 * drm_mode_config_init - initialize DRM mode_configuration structure
3814 * Initialize @dev's mode_config structure, used for tracking the graphics
3815 * configuration of @dev.
3817 * Since this initializes the modeset locks, no locking is possible. Which is no
3818 * problem, since this should happen single threaded at init time. It is the
3819 * driver's problem to ensure this guarantee.
3822 void drm_mode_config_init(struct drm_device *dev)
3824 mutex_init(&dev->mode_config.mutex);
3825 mutex_init(&dev->mode_config.idr_mutex);
3826 mutex_init(&dev->mode_config.fb_lock);
3827 INIT_LIST_HEAD(&dev->mode_config.fb_list);
3828 INIT_LIST_HEAD(&dev->mode_config.crtc_list);
3829 INIT_LIST_HEAD(&dev->mode_config.connector_list);
3830 INIT_LIST_HEAD(&dev->mode_config.encoder_list);
3831 INIT_LIST_HEAD(&dev->mode_config.property_list);
3832 INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
3833 INIT_LIST_HEAD(&dev->mode_config.plane_list);
3834 idr_init(&dev->mode_config.crtc_idr);
3836 drm_modeset_lock_all(dev);
3837 drm_mode_create_standard_connector_properties(dev);
3838 drm_modeset_unlock_all(dev);
3840 /* Just to be sure */
3841 dev->mode_config.num_fb = 0;
3842 dev->mode_config.num_connector = 0;
3843 dev->mode_config.num_crtc = 0;
3844 dev->mode_config.num_encoder = 0;
3846 EXPORT_SYMBOL(drm_mode_config_init);
3849 * drm_mode_config_cleanup - free up DRM mode_config info
3852 * Free up all the connectors and CRTCs associated with this DRM device, then
3853 * free up the framebuffers and associated buffer objects.
3855 * Note that since this /should/ happen single-threaded at driver/device
3856 * teardown time, no locking is required. It's the driver's job to ensure that
3857 * this guarantee actually holds true.
3859 * FIXME: cleanup any dangling user buffer objects too
3861 void drm_mode_config_cleanup(struct drm_device *dev)
3863 struct drm_connector *connector, *ot;
3864 struct drm_crtc *crtc, *ct;
3865 struct drm_encoder *encoder, *enct;
3866 struct drm_framebuffer *fb, *fbt;
3867 struct drm_property *property, *pt;
3868 struct drm_property_blob *blob, *bt;
3869 struct drm_plane *plane, *plt;
3871 list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
3873 encoder->funcs->destroy(encoder);
3876 list_for_each_entry_safe(connector, ot,
3877 &dev->mode_config.connector_list, head) {
3878 connector->funcs->destroy(connector);
3881 list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
3883 drm_property_destroy(dev, property);
3886 list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list,
3888 drm_property_destroy_blob(dev, blob);
3892 * Single-threaded teardown context, so it's not required to grab the
3893 * fb_lock to protect against concurrent fb_list access. Contrary, it
3894 * would actually deadlock with the drm_framebuffer_cleanup function.
3896 * Also, if there are any framebuffers left, that's a driver leak now,
3897 * so politely WARN about this.
3899 WARN_ON(!list_empty(&dev->mode_config.fb_list));
3900 list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
3901 drm_framebuffer_remove(fb);
3904 list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
3906 plane->funcs->destroy(plane);
3909 list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
3910 crtc->funcs->destroy(crtc);
3913 idr_destroy(&dev->mode_config.crtc_idr);
3915 EXPORT_SYMBOL(drm_mode_config_cleanup);