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>
41 #include "drm_crtc_internal.h"
44 * drm_modeset_lock_all - take all modeset locks
47 * This function takes all modeset locks, suitable where a more fine-grained
48 * scheme isn't (yet) implemented. Locks must be dropped with
49 * drm_modeset_unlock_all.
51 void drm_modeset_lock_all(struct drm_device
*dev
)
53 struct drm_crtc
*crtc
;
55 mutex_lock(&dev
->mode_config
.mutex
);
57 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
)
58 mutex_lock_nest_lock(&crtc
->mutex
, &dev
->mode_config
.mutex
);
60 EXPORT_SYMBOL(drm_modeset_lock_all
);
63 * drm_modeset_unlock_all - drop all modeset locks
66 * This function drop all modeset locks taken by drm_modeset_lock_all.
68 void drm_modeset_unlock_all(struct drm_device
*dev
)
70 struct drm_crtc
*crtc
;
72 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
)
73 mutex_unlock(&crtc
->mutex
);
75 mutex_unlock(&dev
->mode_config
.mutex
);
77 EXPORT_SYMBOL(drm_modeset_unlock_all
);
80 * drm_warn_on_modeset_not_all_locked - check that all modeset locks are locked
83 * Useful as a debug assert.
85 void drm_warn_on_modeset_not_all_locked(struct drm_device
*dev
)
87 struct drm_crtc
*crtc
;
89 /* Locking is currently fubar in the panic handler. */
93 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
)
94 WARN_ON(!mutex_is_locked(&crtc
->mutex
));
96 WARN_ON(!mutex_is_locked(&dev
->mode_config
.mutex
));
98 EXPORT_SYMBOL(drm_warn_on_modeset_not_all_locked
);
100 /* Avoid boilerplate. I'm tired of typing. */
101 #define DRM_ENUM_NAME_FN(fnname, list) \
102 const char *fnname(int val) \
105 for (i = 0; i < ARRAY_SIZE(list); i++) { \
106 if (list[i].type == val) \
107 return list[i].name; \
109 return "(unknown)"; \
115 static const struct drm_prop_enum_list drm_dpms_enum_list
[] =
116 { { DRM_MODE_DPMS_ON
, "On" },
117 { DRM_MODE_DPMS_STANDBY
, "Standby" },
118 { DRM_MODE_DPMS_SUSPEND
, "Suspend" },
119 { DRM_MODE_DPMS_OFF
, "Off" }
122 DRM_ENUM_NAME_FN(drm_get_dpms_name
, drm_dpms_enum_list
)
124 static const struct drm_prop_enum_list drm_plane_type_enum_list
[] =
126 { DRM_PLANE_TYPE_OVERLAY
, "Overlay" },
127 { DRM_PLANE_TYPE_PRIMARY
, "Primary" },
128 { DRM_PLANE_TYPE_CURSOR
, "Cursor" },
132 * Optional properties
134 static const struct drm_prop_enum_list drm_scaling_mode_enum_list
[] =
136 { DRM_MODE_SCALE_NONE
, "None" },
137 { DRM_MODE_SCALE_FULLSCREEN
, "Full" },
138 { DRM_MODE_SCALE_CENTER
, "Center" },
139 { DRM_MODE_SCALE_ASPECT
, "Full aspect" },
143 * Non-global properties, but "required" for certain connectors.
145 static const struct drm_prop_enum_list drm_dvi_i_select_enum_list
[] =
147 { DRM_MODE_SUBCONNECTOR_Automatic
, "Automatic" }, /* DVI-I and TV-out */
148 { DRM_MODE_SUBCONNECTOR_DVID
, "DVI-D" }, /* DVI-I */
149 { DRM_MODE_SUBCONNECTOR_DVIA
, "DVI-A" }, /* DVI-I */
152 DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name
, drm_dvi_i_select_enum_list
)
154 static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list
[] =
156 { DRM_MODE_SUBCONNECTOR_Unknown
, "Unknown" }, /* DVI-I and TV-out */
157 { DRM_MODE_SUBCONNECTOR_DVID
, "DVI-D" }, /* DVI-I */
158 { DRM_MODE_SUBCONNECTOR_DVIA
, "DVI-A" }, /* DVI-I */
161 DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name
,
162 drm_dvi_i_subconnector_enum_list
)
164 static const struct drm_prop_enum_list drm_tv_select_enum_list
[] =
166 { DRM_MODE_SUBCONNECTOR_Automatic
, "Automatic" }, /* DVI-I and TV-out */
167 { DRM_MODE_SUBCONNECTOR_Composite
, "Composite" }, /* TV-out */
168 { DRM_MODE_SUBCONNECTOR_SVIDEO
, "SVIDEO" }, /* TV-out */
169 { DRM_MODE_SUBCONNECTOR_Component
, "Component" }, /* TV-out */
170 { DRM_MODE_SUBCONNECTOR_SCART
, "SCART" }, /* TV-out */
173 DRM_ENUM_NAME_FN(drm_get_tv_select_name
, drm_tv_select_enum_list
)
175 static const struct drm_prop_enum_list drm_tv_subconnector_enum_list
[] =
177 { DRM_MODE_SUBCONNECTOR_Unknown
, "Unknown" }, /* DVI-I and TV-out */
178 { DRM_MODE_SUBCONNECTOR_Composite
, "Composite" }, /* TV-out */
179 { DRM_MODE_SUBCONNECTOR_SVIDEO
, "SVIDEO" }, /* TV-out */
180 { DRM_MODE_SUBCONNECTOR_Component
, "Component" }, /* TV-out */
181 { DRM_MODE_SUBCONNECTOR_SCART
, "SCART" }, /* TV-out */
184 DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name
,
185 drm_tv_subconnector_enum_list
)
187 static const struct drm_prop_enum_list drm_dirty_info_enum_list
[] = {
188 { DRM_MODE_DIRTY_OFF
, "Off" },
189 { DRM_MODE_DIRTY_ON
, "On" },
190 { DRM_MODE_DIRTY_ANNOTATE
, "Annotate" },
193 struct drm_conn_prop_enum_list
{
200 * Connector and encoder types.
202 static struct drm_conn_prop_enum_list drm_connector_enum_list
[] =
203 { { DRM_MODE_CONNECTOR_Unknown
, "Unknown" },
204 { DRM_MODE_CONNECTOR_VGA
, "VGA" },
205 { DRM_MODE_CONNECTOR_DVII
, "DVI-I" },
206 { DRM_MODE_CONNECTOR_DVID
, "DVI-D" },
207 { DRM_MODE_CONNECTOR_DVIA
, "DVI-A" },
208 { DRM_MODE_CONNECTOR_Composite
, "Composite" },
209 { DRM_MODE_CONNECTOR_SVIDEO
, "SVIDEO" },
210 { DRM_MODE_CONNECTOR_LVDS
, "LVDS" },
211 { DRM_MODE_CONNECTOR_Component
, "Component" },
212 { DRM_MODE_CONNECTOR_9PinDIN
, "DIN" },
213 { DRM_MODE_CONNECTOR_DisplayPort
, "DP" },
214 { DRM_MODE_CONNECTOR_HDMIA
, "HDMI-A" },
215 { DRM_MODE_CONNECTOR_HDMIB
, "HDMI-B" },
216 { DRM_MODE_CONNECTOR_TV
, "TV" },
217 { DRM_MODE_CONNECTOR_eDP
, "eDP" },
218 { DRM_MODE_CONNECTOR_VIRTUAL
, "Virtual" },
219 { DRM_MODE_CONNECTOR_DSI
, "DSI" },
222 static const struct drm_prop_enum_list drm_encoder_enum_list
[] =
223 { { DRM_MODE_ENCODER_NONE
, "None" },
224 { DRM_MODE_ENCODER_DAC
, "DAC" },
225 { DRM_MODE_ENCODER_TMDS
, "TMDS" },
226 { DRM_MODE_ENCODER_LVDS
, "LVDS" },
227 { DRM_MODE_ENCODER_TVDAC
, "TV" },
228 { DRM_MODE_ENCODER_VIRTUAL
, "Virtual" },
229 { DRM_MODE_ENCODER_DSI
, "DSI" },
232 static const struct drm_prop_enum_list drm_subpixel_enum_list
[] =
234 { SubPixelUnknown
, "Unknown" },
235 { SubPixelHorizontalRGB
, "Horizontal RGB" },
236 { SubPixelHorizontalBGR
, "Horizontal BGR" },
237 { SubPixelVerticalRGB
, "Vertical RGB" },
238 { SubPixelVerticalBGR
, "Vertical BGR" },
239 { SubPixelNone
, "None" },
242 void drm_connector_ida_init(void)
246 for (i
= 0; i
< ARRAY_SIZE(drm_connector_enum_list
); i
++)
247 ida_init(&drm_connector_enum_list
[i
].ida
);
250 void drm_connector_ida_destroy(void)
254 for (i
= 0; i
< ARRAY_SIZE(drm_connector_enum_list
); i
++)
255 ida_destroy(&drm_connector_enum_list
[i
].ida
);
259 * drm_get_encoder_name - return a string for encoder
260 * @encoder: encoder to compute name of
262 * Note that the buffer used by this function is globally shared and owned by
263 * the function itself.
265 * FIXME: This isn't really multithreading safe.
267 const char *drm_get_encoder_name(const struct drm_encoder
*encoder
)
271 snprintf(buf
, 32, "%s-%d",
272 drm_encoder_enum_list
[encoder
->encoder_type
].name
,
276 EXPORT_SYMBOL(drm_get_encoder_name
);
279 * drm_get_connector_name - return a string for connector
280 * @connector: connector to compute name of
282 * Note that the buffer used by this function is globally shared and owned by
283 * the function itself.
285 * FIXME: This isn't really multithreading safe.
287 const char *drm_get_connector_name(const struct drm_connector
*connector
)
291 snprintf(buf
, 32, "%s-%d",
292 drm_connector_enum_list
[connector
->connector_type
].name
,
293 connector
->connector_type_id
);
296 EXPORT_SYMBOL(drm_get_connector_name
);
299 * drm_get_connector_status_name - return a string for connector status
300 * @status: connector status to compute name of
302 * In contrast to the other drm_get_*_name functions this one here returns a
303 * const pointer and hence is threadsafe.
305 const char *drm_get_connector_status_name(enum drm_connector_status status
)
307 if (status
== connector_status_connected
)
309 else if (status
== connector_status_disconnected
)
310 return "disconnected";
314 EXPORT_SYMBOL(drm_get_connector_status_name
);
317 * drm_get_subpixel_order_name - return a string for a given subpixel enum
318 * @order: enum of subpixel_order
320 * Note you could abuse this and return something out of bounds, but that
321 * would be a caller error. No unscrubbed user data should make it here.
323 const char *drm_get_subpixel_order_name(enum subpixel_order order
)
325 return drm_subpixel_enum_list
[order
].name
;
327 EXPORT_SYMBOL(drm_get_subpixel_order_name
);
329 static char printable_char(int c
)
331 return isascii(c
) && isprint(c
) ? c
: '?';
335 * drm_get_format_name - return a string for drm fourcc format
336 * @format: format to compute name of
338 * Note that the buffer used by this function is globally shared and owned by
339 * the function itself.
341 * FIXME: This isn't really multithreading safe.
343 const char *drm_get_format_name(uint32_t format
)
347 snprintf(buf
, sizeof(buf
),
348 "%c%c%c%c %s-endian (0x%08x)",
349 printable_char(format
& 0xff),
350 printable_char((format
>> 8) & 0xff),
351 printable_char((format
>> 16) & 0xff),
352 printable_char((format
>> 24) & 0x7f),
353 format
& DRM_FORMAT_BIG_ENDIAN
? "big" : "little",
358 EXPORT_SYMBOL(drm_get_format_name
);
361 * drm_mode_object_get - allocate a new modeset identifier
363 * @obj: object pointer, used to generate unique ID
364 * @obj_type: object type
366 * Create a unique identifier based on @ptr in @dev's identifier space. Used
367 * for tracking modes, CRTCs and connectors. Note that despite the _get postfix
368 * modeset identifiers are _not_ reference counted. Hence don't use this for
369 * reference counted modeset objects like framebuffers.
372 * New unique (relative to other objects in @dev) integer identifier for the
375 int drm_mode_object_get(struct drm_device
*dev
,
376 struct drm_mode_object
*obj
, uint32_t obj_type
)
380 mutex_lock(&dev
->mode_config
.idr_mutex
);
381 ret
= idr_alloc(&dev
->mode_config
.crtc_idr
, obj
, 1, 0, GFP_KERNEL
);
384 * Set up the object linking under the protection of the idr
385 * lock so that other users can't see inconsistent state.
388 obj
->type
= obj_type
;
390 mutex_unlock(&dev
->mode_config
.idr_mutex
);
392 return ret
< 0 ? ret
: 0;
396 * drm_mode_object_put - free a modeset identifer
398 * @object: object to free
400 * Free @id from @dev's unique identifier pool. Note that despite the _get
401 * postfix modeset identifiers are _not_ reference counted. Hence don't use this
402 * for reference counted modeset objects like framebuffers.
404 void drm_mode_object_put(struct drm_device
*dev
,
405 struct drm_mode_object
*object
)
407 mutex_lock(&dev
->mode_config
.idr_mutex
);
408 idr_remove(&dev
->mode_config
.crtc_idr
, object
->id
);
409 mutex_unlock(&dev
->mode_config
.idr_mutex
);
413 * drm_mode_object_find - look up a drm object with static lifetime
415 * @id: id of the mode object
416 * @type: type of the mode object
418 * Note that framebuffers cannot be looked up with this functions - since those
419 * are reference counted, they need special treatment.
421 struct drm_mode_object
*drm_mode_object_find(struct drm_device
*dev
,
422 uint32_t id
, uint32_t type
)
424 struct drm_mode_object
*obj
= NULL
;
426 /* Framebuffers are reference counted and need their own lookup
428 WARN_ON(type
== DRM_MODE_OBJECT_FB
);
430 mutex_lock(&dev
->mode_config
.idr_mutex
);
431 obj
= idr_find(&dev
->mode_config
.crtc_idr
, id
);
432 if (!obj
|| (obj
->type
!= type
) || (obj
->id
!= id
))
434 mutex_unlock(&dev
->mode_config
.idr_mutex
);
438 EXPORT_SYMBOL(drm_mode_object_find
);
441 * drm_framebuffer_init - initialize a framebuffer
443 * @fb: framebuffer to be initialized
444 * @funcs: ... with these functions
446 * Allocates an ID for the framebuffer's parent mode object, sets its mode
447 * functions & device file and adds it to the master fd list.
450 * This functions publishes the fb and makes it available for concurrent access
451 * by other users. Which means by this point the fb _must_ be fully set up -
452 * since all the fb attributes are invariant over its lifetime, no further
453 * locking but only correct reference counting is required.
456 * Zero on success, error code on failure.
458 int drm_framebuffer_init(struct drm_device
*dev
, struct drm_framebuffer
*fb
,
459 const struct drm_framebuffer_funcs
*funcs
)
463 mutex_lock(&dev
->mode_config
.fb_lock
);
464 kref_init(&fb
->refcount
);
465 INIT_LIST_HEAD(&fb
->filp_head
);
469 ret
= drm_mode_object_get(dev
, &fb
->base
, DRM_MODE_OBJECT_FB
);
473 /* Grab the idr reference. */
474 drm_framebuffer_reference(fb
);
476 dev
->mode_config
.num_fb
++;
477 list_add(&fb
->head
, &dev
->mode_config
.fb_list
);
479 mutex_unlock(&dev
->mode_config
.fb_lock
);
483 EXPORT_SYMBOL(drm_framebuffer_init
);
485 static void drm_framebuffer_free(struct kref
*kref
)
487 struct drm_framebuffer
*fb
=
488 container_of(kref
, struct drm_framebuffer
, refcount
);
489 fb
->funcs
->destroy(fb
);
492 static struct drm_framebuffer
*__drm_framebuffer_lookup(struct drm_device
*dev
,
495 struct drm_mode_object
*obj
= NULL
;
496 struct drm_framebuffer
*fb
;
498 mutex_lock(&dev
->mode_config
.idr_mutex
);
499 obj
= idr_find(&dev
->mode_config
.crtc_idr
, id
);
500 if (!obj
|| (obj
->type
!= DRM_MODE_OBJECT_FB
) || (obj
->id
!= id
))
504 mutex_unlock(&dev
->mode_config
.idr_mutex
);
510 * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference
512 * @id: id of the fb object
514 * If successful, this grabs an additional reference to the framebuffer -
515 * callers need to make sure to eventually unreference the returned framebuffer
516 * again, using @drm_framebuffer_unreference.
518 struct drm_framebuffer
*drm_framebuffer_lookup(struct drm_device
*dev
,
521 struct drm_framebuffer
*fb
;
523 mutex_lock(&dev
->mode_config
.fb_lock
);
524 fb
= __drm_framebuffer_lookup(dev
, id
);
526 drm_framebuffer_reference(fb
);
527 mutex_unlock(&dev
->mode_config
.fb_lock
);
531 EXPORT_SYMBOL(drm_framebuffer_lookup
);
534 * drm_framebuffer_unreference - unref a framebuffer
535 * @fb: framebuffer to unref
537 * This functions decrements the fb's refcount and frees it if it drops to zero.
539 void drm_framebuffer_unreference(struct drm_framebuffer
*fb
)
541 DRM_DEBUG("FB ID: %d\n", fb
->base
.id
);
542 kref_put(&fb
->refcount
, drm_framebuffer_free
);
544 EXPORT_SYMBOL(drm_framebuffer_unreference
);
547 * drm_framebuffer_reference - incr the fb refcnt
550 * This functions increments the fb's refcount.
552 void drm_framebuffer_reference(struct drm_framebuffer
*fb
)
554 DRM_DEBUG("FB ID: %d\n", fb
->base
.id
);
555 kref_get(&fb
->refcount
);
557 EXPORT_SYMBOL(drm_framebuffer_reference
);
559 static void drm_framebuffer_free_bug(struct kref
*kref
)
564 static void __drm_framebuffer_unreference(struct drm_framebuffer
*fb
)
566 DRM_DEBUG("FB ID: %d\n", fb
->base
.id
);
567 kref_put(&fb
->refcount
, drm_framebuffer_free_bug
);
570 /* dev->mode_config.fb_lock must be held! */
571 static void __drm_framebuffer_unregister(struct drm_device
*dev
,
572 struct drm_framebuffer
*fb
)
574 mutex_lock(&dev
->mode_config
.idr_mutex
);
575 idr_remove(&dev
->mode_config
.crtc_idr
, fb
->base
.id
);
576 mutex_unlock(&dev
->mode_config
.idr_mutex
);
580 __drm_framebuffer_unreference(fb
);
584 * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr
585 * @fb: fb to unregister
587 * Drivers need to call this when cleaning up driver-private framebuffers, e.g.
588 * those used for fbdev. Note that the caller must hold a reference of it's own,
589 * i.e. the object may not be destroyed through this call (since it'll lead to a
590 * locking inversion).
592 void drm_framebuffer_unregister_private(struct drm_framebuffer
*fb
)
594 struct drm_device
*dev
= fb
->dev
;
596 mutex_lock(&dev
->mode_config
.fb_lock
);
597 /* Mark fb as reaped and drop idr ref. */
598 __drm_framebuffer_unregister(dev
, fb
);
599 mutex_unlock(&dev
->mode_config
.fb_lock
);
601 EXPORT_SYMBOL(drm_framebuffer_unregister_private
);
604 * drm_framebuffer_cleanup - remove a framebuffer object
605 * @fb: framebuffer to remove
607 * Cleanup framebuffer. This function is intended to be used from the drivers
608 * ->destroy callback. It can also be used to clean up driver private
609 * framebuffers embedded into a larger structure.
611 * Note that this function does not remove the fb from active usuage - if it is
612 * still used anywhere, hilarity can ensue since userspace could call getfb on
613 * the id and get back -EINVAL. Obviously no concern at driver unload time.
615 * Also, the framebuffer will not be removed from the lookup idr - for
616 * user-created framebuffers this will happen in in the rmfb ioctl. For
617 * driver-private objects (e.g. for fbdev) drivers need to explicitly call
618 * drm_framebuffer_unregister_private.
620 void drm_framebuffer_cleanup(struct drm_framebuffer
*fb
)
622 struct drm_device
*dev
= fb
->dev
;
624 mutex_lock(&dev
->mode_config
.fb_lock
);
626 dev
->mode_config
.num_fb
--;
627 mutex_unlock(&dev
->mode_config
.fb_lock
);
629 EXPORT_SYMBOL(drm_framebuffer_cleanup
);
632 * drm_framebuffer_remove - remove and unreference a framebuffer object
633 * @fb: framebuffer to remove
635 * Scans all the CRTCs and planes in @dev's mode_config. If they're
636 * using @fb, removes it, setting it to NULL. Then drops the reference to the
637 * passed-in framebuffer. Might take the modeset locks.
639 * Note that this function optimizes the cleanup away if the caller holds the
640 * last reference to the framebuffer. It is also guaranteed to not take the
641 * modeset locks in this case.
643 void drm_framebuffer_remove(struct drm_framebuffer
*fb
)
645 struct drm_device
*dev
= fb
->dev
;
646 struct drm_crtc
*crtc
;
647 struct drm_plane
*plane
;
648 struct drm_mode_set set
;
651 WARN_ON(!list_empty(&fb
->filp_head
));
654 * drm ABI mandates that we remove any deleted framebuffers from active
655 * useage. But since most sane clients only remove framebuffers they no
656 * longer need, try to optimize this away.
658 * Since we're holding a reference ourselves, observing a refcount of 1
659 * means that we're the last holder and can skip it. Also, the refcount
660 * can never increase from 1 again, so we don't need any barriers or
663 * Note that userspace could try to race with use and instate a new
664 * usage _after_ we've cleared all current ones. End result will be an
665 * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot
668 if (atomic_read(&fb
->refcount
.refcount
) > 1) {
669 drm_modeset_lock_all(dev
);
670 /* remove from any CRTC */
671 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
) {
672 if (crtc
->primary
->fb
== fb
) {
673 /* should turn off the crtc */
674 memset(&set
, 0, sizeof(struct drm_mode_set
));
677 ret
= drm_mode_set_config_internal(&set
);
679 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc
);
683 list_for_each_entry(plane
, &dev
->mode_config
.plane_list
, head
) {
685 drm_plane_force_disable(plane
);
687 drm_modeset_unlock_all(dev
);
690 drm_framebuffer_unreference(fb
);
692 EXPORT_SYMBOL(drm_framebuffer_remove
);
695 * drm_crtc_init_with_planes - Initialise a new CRTC object with
696 * specified primary and cursor planes.
698 * @crtc: CRTC object to init
699 * @primary: Primary plane for CRTC
700 * @cursor: Cursor plane for CRTC
701 * @funcs: callbacks for the new CRTC
703 * Inits a new object created as base part of a driver crtc object.
706 * Zero on success, error code on failure.
708 int drm_crtc_init_with_planes(struct drm_device
*dev
, struct drm_crtc
*crtc
,
709 struct drm_plane
*primary
,
711 const struct drm_crtc_funcs
*funcs
)
717 crtc
->invert_dimensions
= false;
719 drm_modeset_lock_all(dev
);
720 mutex_init(&crtc
->mutex
);
721 mutex_lock_nest_lock(&crtc
->mutex
, &dev
->mode_config
.mutex
);
723 ret
= drm_mode_object_get(dev
, &crtc
->base
, DRM_MODE_OBJECT_CRTC
);
727 crtc
->base
.properties
= &crtc
->properties
;
729 list_add_tail(&crtc
->head
, &dev
->mode_config
.crtc_list
);
730 dev
->mode_config
.num_crtc
++;
732 crtc
->primary
= primary
;
734 primary
->possible_crtcs
= 1 << drm_crtc_index(crtc
);
737 drm_modeset_unlock_all(dev
);
741 EXPORT_SYMBOL(drm_crtc_init_with_planes
);
744 * drm_crtc_cleanup - Clean up the core crtc usage
745 * @crtc: CRTC to cleanup
747 * This function cleans up @crtc and removes it from the DRM mode setting
748 * core. Note that the function does *not* free the crtc structure itself,
749 * this is the responsibility of the caller.
751 void drm_crtc_cleanup(struct drm_crtc
*crtc
)
753 struct drm_device
*dev
= crtc
->dev
;
755 kfree(crtc
->gamma_store
);
756 crtc
->gamma_store
= NULL
;
758 drm_mode_object_put(dev
, &crtc
->base
);
759 list_del(&crtc
->head
);
760 dev
->mode_config
.num_crtc
--;
762 EXPORT_SYMBOL(drm_crtc_cleanup
);
765 * drm_crtc_index - find the index of a registered CRTC
766 * @crtc: CRTC to find index for
768 * Given a registered CRTC, return the index of that CRTC within a DRM
769 * device's list of CRTCs.
771 unsigned int drm_crtc_index(struct drm_crtc
*crtc
)
773 unsigned int index
= 0;
774 struct drm_crtc
*tmp
;
776 list_for_each_entry(tmp
, &crtc
->dev
->mode_config
.crtc_list
, head
) {
785 EXPORT_SYMBOL(drm_crtc_index
);
788 * drm_mode_remove - remove and free a mode
789 * @connector: connector list to modify
790 * @mode: mode to remove
792 * Remove @mode from @connector's mode list, then free it.
794 static void drm_mode_remove(struct drm_connector
*connector
,
795 struct drm_display_mode
*mode
)
797 list_del(&mode
->head
);
798 drm_mode_destroy(connector
->dev
, mode
);
802 * drm_connector_init - Init a preallocated connector
804 * @connector: the connector to init
805 * @funcs: callbacks for this connector
806 * @connector_type: user visible type of the connector
808 * Initialises a preallocated connector. Connectors should be
809 * subclassed as part of driver connector objects.
812 * Zero on success, error code on failure.
814 int drm_connector_init(struct drm_device
*dev
,
815 struct drm_connector
*connector
,
816 const struct drm_connector_funcs
*funcs
,
820 struct ida
*connector_ida
=
821 &drm_connector_enum_list
[connector_type
].ida
;
823 drm_modeset_lock_all(dev
);
825 ret
= drm_mode_object_get(dev
, &connector
->base
, DRM_MODE_OBJECT_CONNECTOR
);
829 connector
->base
.properties
= &connector
->properties
;
830 connector
->dev
= dev
;
831 connector
->funcs
= funcs
;
832 connector
->connector_type
= connector_type
;
833 connector
->connector_type_id
=
834 ida_simple_get(connector_ida
, 1, 0, GFP_KERNEL
);
835 if (connector
->connector_type_id
< 0) {
836 ret
= connector
->connector_type_id
;
837 drm_mode_object_put(dev
, &connector
->base
);
840 INIT_LIST_HEAD(&connector
->probed_modes
);
841 INIT_LIST_HEAD(&connector
->modes
);
842 connector
->edid_blob_ptr
= NULL
;
843 connector
->status
= connector_status_unknown
;
845 list_add_tail(&connector
->head
, &dev
->mode_config
.connector_list
);
846 dev
->mode_config
.num_connector
++;
848 if (connector_type
!= DRM_MODE_CONNECTOR_VIRTUAL
)
849 drm_object_attach_property(&connector
->base
,
850 dev
->mode_config
.edid_property
,
853 drm_object_attach_property(&connector
->base
,
854 dev
->mode_config
.dpms_property
, 0);
857 drm_modeset_unlock_all(dev
);
861 EXPORT_SYMBOL(drm_connector_init
);
864 * drm_connector_cleanup - cleans up an initialised connector
865 * @connector: connector to cleanup
867 * Cleans up the connector but doesn't free the object.
869 void drm_connector_cleanup(struct drm_connector
*connector
)
871 struct drm_device
*dev
= connector
->dev
;
872 struct drm_display_mode
*mode
, *t
;
874 list_for_each_entry_safe(mode
, t
, &connector
->probed_modes
, head
)
875 drm_mode_remove(connector
, mode
);
877 list_for_each_entry_safe(mode
, t
, &connector
->modes
, head
)
878 drm_mode_remove(connector
, mode
);
880 ida_remove(&drm_connector_enum_list
[connector
->connector_type
].ida
,
881 connector
->connector_type_id
);
883 drm_mode_object_put(dev
, &connector
->base
);
884 list_del(&connector
->head
);
885 dev
->mode_config
.num_connector
--;
887 EXPORT_SYMBOL(drm_connector_cleanup
);
890 * drm_connector_unplug_all - unregister connector userspace interfaces
893 * This function unregisters all connector userspace interfaces in sysfs. Should
894 * be call when the device is disconnected, e.g. from an usb driver's
895 * ->disconnect callback.
897 void drm_connector_unplug_all(struct drm_device
*dev
)
899 struct drm_connector
*connector
;
901 /* taking the mode config mutex ends up in a clash with sysfs */
902 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
)
903 drm_sysfs_connector_remove(connector
);
906 EXPORT_SYMBOL(drm_connector_unplug_all
);
909 * drm_bridge_init - initialize a drm transcoder/bridge
911 * @bridge: transcoder/bridge to set up
912 * @funcs: bridge function table
914 * Initialises a preallocated bridge. Bridges should be
915 * subclassed as part of driver connector objects.
918 * Zero on success, error code on failure.
920 int drm_bridge_init(struct drm_device
*dev
, struct drm_bridge
*bridge
,
921 const struct drm_bridge_funcs
*funcs
)
925 drm_modeset_lock_all(dev
);
927 ret
= drm_mode_object_get(dev
, &bridge
->base
, DRM_MODE_OBJECT_BRIDGE
);
932 bridge
->funcs
= funcs
;
934 list_add_tail(&bridge
->head
, &dev
->mode_config
.bridge_list
);
935 dev
->mode_config
.num_bridge
++;
938 drm_modeset_unlock_all(dev
);
941 EXPORT_SYMBOL(drm_bridge_init
);
944 * drm_bridge_cleanup - cleans up an initialised bridge
945 * @bridge: bridge to cleanup
947 * Cleans up the bridge but doesn't free the object.
949 void drm_bridge_cleanup(struct drm_bridge
*bridge
)
951 struct drm_device
*dev
= bridge
->dev
;
953 drm_modeset_lock_all(dev
);
954 drm_mode_object_put(dev
, &bridge
->base
);
955 list_del(&bridge
->head
);
956 dev
->mode_config
.num_bridge
--;
957 drm_modeset_unlock_all(dev
);
959 EXPORT_SYMBOL(drm_bridge_cleanup
);
962 * drm_encoder_init - Init a preallocated encoder
964 * @encoder: the encoder to init
965 * @funcs: callbacks for this encoder
966 * @encoder_type: user visible type of the encoder
968 * Initialises a preallocated encoder. Encoder should be
969 * subclassed as part of driver encoder objects.
972 * Zero on success, error code on failure.
974 int drm_encoder_init(struct drm_device
*dev
,
975 struct drm_encoder
*encoder
,
976 const struct drm_encoder_funcs
*funcs
,
981 drm_modeset_lock_all(dev
);
983 ret
= drm_mode_object_get(dev
, &encoder
->base
, DRM_MODE_OBJECT_ENCODER
);
988 encoder
->encoder_type
= encoder_type
;
989 encoder
->funcs
= funcs
;
991 list_add_tail(&encoder
->head
, &dev
->mode_config
.encoder_list
);
992 dev
->mode_config
.num_encoder
++;
995 drm_modeset_unlock_all(dev
);
999 EXPORT_SYMBOL(drm_encoder_init
);
1002 * drm_encoder_cleanup - cleans up an initialised encoder
1003 * @encoder: encoder to cleanup
1005 * Cleans up the encoder but doesn't free the object.
1007 void drm_encoder_cleanup(struct drm_encoder
*encoder
)
1009 struct drm_device
*dev
= encoder
->dev
;
1010 drm_modeset_lock_all(dev
);
1011 drm_mode_object_put(dev
, &encoder
->base
);
1012 list_del(&encoder
->head
);
1013 dev
->mode_config
.num_encoder
--;
1014 drm_modeset_unlock_all(dev
);
1016 EXPORT_SYMBOL(drm_encoder_cleanup
);
1019 * drm_universal_plane_init - Initialize a new universal plane object
1021 * @plane: plane object to init
1022 * @possible_crtcs: bitmask of possible CRTCs
1023 * @funcs: callbacks for the new plane
1024 * @formats: array of supported formats (%DRM_FORMAT_*)
1025 * @format_count: number of elements in @formats
1026 * @type: type of plane (overlay, primary, cursor)
1028 * Initializes a plane object of type @type.
1031 * Zero on success, error code on failure.
1033 int drm_universal_plane_init(struct drm_device
*dev
, struct drm_plane
*plane
,
1034 unsigned long possible_crtcs
,
1035 const struct drm_plane_funcs
*funcs
,
1036 const uint32_t *formats
, uint32_t format_count
,
1037 enum drm_plane_type type
)
1041 drm_modeset_lock_all(dev
);
1043 ret
= drm_mode_object_get(dev
, &plane
->base
, DRM_MODE_OBJECT_PLANE
);
1047 plane
->base
.properties
= &plane
->properties
;
1049 plane
->funcs
= funcs
;
1050 plane
->format_types
= kmalloc(sizeof(uint32_t) * format_count
,
1052 if (!plane
->format_types
) {
1053 DRM_DEBUG_KMS("out of memory when allocating plane\n");
1054 drm_mode_object_put(dev
, &plane
->base
);
1059 memcpy(plane
->format_types
, formats
, format_count
* sizeof(uint32_t));
1060 plane
->format_count
= format_count
;
1061 plane
->possible_crtcs
= possible_crtcs
;
1064 list_add_tail(&plane
->head
, &dev
->mode_config
.plane_list
);
1065 dev
->mode_config
.num_total_plane
++;
1066 if (plane
->type
== DRM_PLANE_TYPE_OVERLAY
)
1067 dev
->mode_config
.num_overlay_plane
++;
1069 drm_object_attach_property(&plane
->base
,
1070 dev
->mode_config
.plane_type_property
,
1074 drm_modeset_unlock_all(dev
);
1078 EXPORT_SYMBOL(drm_universal_plane_init
);
1081 * drm_plane_init - Initialize a legacy plane
1083 * @plane: plane object to init
1084 * @possible_crtcs: bitmask of possible CRTCs
1085 * @funcs: callbacks for the new plane
1086 * @formats: array of supported formats (%DRM_FORMAT_*)
1087 * @format_count: number of elements in @formats
1088 * @is_primary: plane type (primary vs overlay)
1090 * Legacy API to initialize a DRM plane.
1092 * New drivers should call drm_universal_plane_init() instead.
1095 * Zero on success, error code on failure.
1097 int drm_plane_init(struct drm_device
*dev
, struct drm_plane
*plane
,
1098 unsigned long possible_crtcs
,
1099 const struct drm_plane_funcs
*funcs
,
1100 const uint32_t *formats
, uint32_t format_count
,
1103 enum drm_plane_type type
;
1105 type
= is_primary
? DRM_PLANE_TYPE_PRIMARY
: DRM_PLANE_TYPE_OVERLAY
;
1106 return drm_universal_plane_init(dev
, plane
, possible_crtcs
, funcs
,
1107 formats
, format_count
, type
);
1109 EXPORT_SYMBOL(drm_plane_init
);
1112 * drm_plane_cleanup - Clean up the core plane usage
1113 * @plane: plane to cleanup
1115 * This function cleans up @plane and removes it from the DRM mode setting
1116 * core. Note that the function does *not* free the plane structure itself,
1117 * this is the responsibility of the caller.
1119 void drm_plane_cleanup(struct drm_plane
*plane
)
1121 struct drm_device
*dev
= plane
->dev
;
1123 drm_modeset_lock_all(dev
);
1124 kfree(plane
->format_types
);
1125 drm_mode_object_put(dev
, &plane
->base
);
1127 BUG_ON(list_empty(&plane
->head
));
1129 list_del(&plane
->head
);
1130 dev
->mode_config
.num_total_plane
--;
1131 if (plane
->type
== DRM_PLANE_TYPE_OVERLAY
)
1132 dev
->mode_config
.num_overlay_plane
--;
1133 drm_modeset_unlock_all(dev
);
1135 EXPORT_SYMBOL(drm_plane_cleanup
);
1138 * drm_plane_force_disable - Forcibly disable a plane
1139 * @plane: plane to disable
1141 * Forces the plane to be disabled.
1143 * Used when the plane's current framebuffer is destroyed,
1144 * and when restoring fbdev mode.
1146 void drm_plane_force_disable(struct drm_plane
*plane
)
1148 struct drm_framebuffer
*old_fb
= plane
->fb
;
1154 ret
= plane
->funcs
->disable_plane(plane
);
1156 DRM_ERROR("failed to disable plane with busy fb\n");
1159 /* disconnect the plane from the fb and crtc: */
1160 __drm_framebuffer_unreference(old_fb
);
1164 EXPORT_SYMBOL(drm_plane_force_disable
);
1166 static int drm_mode_create_standard_connector_properties(struct drm_device
*dev
)
1168 struct drm_property
*edid
;
1169 struct drm_property
*dpms
;
1172 * Standard properties (apply to all connectors)
1174 edid
= drm_property_create(dev
, DRM_MODE_PROP_BLOB
|
1175 DRM_MODE_PROP_IMMUTABLE
,
1177 dev
->mode_config
.edid_property
= edid
;
1179 dpms
= drm_property_create_enum(dev
, 0,
1180 "DPMS", drm_dpms_enum_list
,
1181 ARRAY_SIZE(drm_dpms_enum_list
));
1182 dev
->mode_config
.dpms_property
= dpms
;
1187 static int drm_mode_create_standard_plane_properties(struct drm_device
*dev
)
1189 struct drm_property
*type
;
1192 * Standard properties (apply to all planes)
1194 type
= drm_property_create_enum(dev
, DRM_MODE_PROP_IMMUTABLE
,
1195 "type", drm_plane_type_enum_list
,
1196 ARRAY_SIZE(drm_plane_type_enum_list
));
1197 dev
->mode_config
.plane_type_property
= type
;
1203 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
1206 * Called by a driver the first time a DVI-I connector is made.
1208 int drm_mode_create_dvi_i_properties(struct drm_device
*dev
)
1210 struct drm_property
*dvi_i_selector
;
1211 struct drm_property
*dvi_i_subconnector
;
1213 if (dev
->mode_config
.dvi_i_select_subconnector_property
)
1217 drm_property_create_enum(dev
, 0,
1218 "select subconnector",
1219 drm_dvi_i_select_enum_list
,
1220 ARRAY_SIZE(drm_dvi_i_select_enum_list
));
1221 dev
->mode_config
.dvi_i_select_subconnector_property
= dvi_i_selector
;
1223 dvi_i_subconnector
= drm_property_create_enum(dev
, DRM_MODE_PROP_IMMUTABLE
,
1225 drm_dvi_i_subconnector_enum_list
,
1226 ARRAY_SIZE(drm_dvi_i_subconnector_enum_list
));
1227 dev
->mode_config
.dvi_i_subconnector_property
= dvi_i_subconnector
;
1231 EXPORT_SYMBOL(drm_mode_create_dvi_i_properties
);
1234 * drm_create_tv_properties - create TV specific connector properties
1236 * @num_modes: number of different TV formats (modes) supported
1237 * @modes: array of pointers to strings containing name of each format
1239 * Called by a driver's TV initialization routine, this function creates
1240 * the TV specific connector properties for a given device. Caller is
1241 * responsible for allocating a list of format names and passing them to
1244 int drm_mode_create_tv_properties(struct drm_device
*dev
, int num_modes
,
1247 struct drm_property
*tv_selector
;
1248 struct drm_property
*tv_subconnector
;
1251 if (dev
->mode_config
.tv_select_subconnector_property
)
1255 * Basic connector properties
1257 tv_selector
= drm_property_create_enum(dev
, 0,
1258 "select subconnector",
1259 drm_tv_select_enum_list
,
1260 ARRAY_SIZE(drm_tv_select_enum_list
));
1261 dev
->mode_config
.tv_select_subconnector_property
= tv_selector
;
1264 drm_property_create_enum(dev
, DRM_MODE_PROP_IMMUTABLE
,
1266 drm_tv_subconnector_enum_list
,
1267 ARRAY_SIZE(drm_tv_subconnector_enum_list
));
1268 dev
->mode_config
.tv_subconnector_property
= tv_subconnector
;
1271 * Other, TV specific properties: margins & TV modes.
1273 dev
->mode_config
.tv_left_margin_property
=
1274 drm_property_create_range(dev
, 0, "left margin", 0, 100);
1276 dev
->mode_config
.tv_right_margin_property
=
1277 drm_property_create_range(dev
, 0, "right margin", 0, 100);
1279 dev
->mode_config
.tv_top_margin_property
=
1280 drm_property_create_range(dev
, 0, "top margin", 0, 100);
1282 dev
->mode_config
.tv_bottom_margin_property
=
1283 drm_property_create_range(dev
, 0, "bottom margin", 0, 100);
1285 dev
->mode_config
.tv_mode_property
=
1286 drm_property_create(dev
, DRM_MODE_PROP_ENUM
,
1288 for (i
= 0; i
< num_modes
; i
++)
1289 drm_property_add_enum(dev
->mode_config
.tv_mode_property
, i
,
1292 dev
->mode_config
.tv_brightness_property
=
1293 drm_property_create_range(dev
, 0, "brightness", 0, 100);
1295 dev
->mode_config
.tv_contrast_property
=
1296 drm_property_create_range(dev
, 0, "contrast", 0, 100);
1298 dev
->mode_config
.tv_flicker_reduction_property
=
1299 drm_property_create_range(dev
, 0, "flicker reduction", 0, 100);
1301 dev
->mode_config
.tv_overscan_property
=
1302 drm_property_create_range(dev
, 0, "overscan", 0, 100);
1304 dev
->mode_config
.tv_saturation_property
=
1305 drm_property_create_range(dev
, 0, "saturation", 0, 100);
1307 dev
->mode_config
.tv_hue_property
=
1308 drm_property_create_range(dev
, 0, "hue", 0, 100);
1312 EXPORT_SYMBOL(drm_mode_create_tv_properties
);
1315 * drm_mode_create_scaling_mode_property - create scaling mode property
1318 * Called by a driver the first time it's needed, must be attached to desired
1321 int drm_mode_create_scaling_mode_property(struct drm_device
*dev
)
1323 struct drm_property
*scaling_mode
;
1325 if (dev
->mode_config
.scaling_mode_property
)
1329 drm_property_create_enum(dev
, 0, "scaling mode",
1330 drm_scaling_mode_enum_list
,
1331 ARRAY_SIZE(drm_scaling_mode_enum_list
));
1333 dev
->mode_config
.scaling_mode_property
= scaling_mode
;
1337 EXPORT_SYMBOL(drm_mode_create_scaling_mode_property
);
1340 * drm_mode_create_dirty_property - create dirty property
1343 * Called by a driver the first time it's needed, must be attached to desired
1346 int drm_mode_create_dirty_info_property(struct drm_device
*dev
)
1348 struct drm_property
*dirty_info
;
1350 if (dev
->mode_config
.dirty_info_property
)
1354 drm_property_create_enum(dev
, DRM_MODE_PROP_IMMUTABLE
,
1356 drm_dirty_info_enum_list
,
1357 ARRAY_SIZE(drm_dirty_info_enum_list
));
1358 dev
->mode_config
.dirty_info_property
= dirty_info
;
1362 EXPORT_SYMBOL(drm_mode_create_dirty_info_property
);
1364 static int drm_mode_group_init(struct drm_device
*dev
, struct drm_mode_group
*group
)
1366 uint32_t total_objects
= 0;
1368 total_objects
+= dev
->mode_config
.num_crtc
;
1369 total_objects
+= dev
->mode_config
.num_connector
;
1370 total_objects
+= dev
->mode_config
.num_encoder
;
1371 total_objects
+= dev
->mode_config
.num_bridge
;
1373 group
->id_list
= kzalloc(total_objects
* sizeof(uint32_t), GFP_KERNEL
);
1374 if (!group
->id_list
)
1377 group
->num_crtcs
= 0;
1378 group
->num_connectors
= 0;
1379 group
->num_encoders
= 0;
1380 group
->num_bridges
= 0;
1384 void drm_mode_group_destroy(struct drm_mode_group
*group
)
1386 kfree(group
->id_list
);
1387 group
->id_list
= NULL
;
1391 * NOTE: Driver's shouldn't ever call drm_mode_group_init_legacy_group - it is
1392 * the drm core's responsibility to set up mode control groups.
1394 int drm_mode_group_init_legacy_group(struct drm_device
*dev
,
1395 struct drm_mode_group
*group
)
1397 struct drm_crtc
*crtc
;
1398 struct drm_encoder
*encoder
;
1399 struct drm_connector
*connector
;
1400 struct drm_bridge
*bridge
;
1403 if ((ret
= drm_mode_group_init(dev
, group
)))
1406 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
)
1407 group
->id_list
[group
->num_crtcs
++] = crtc
->base
.id
;
1409 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
)
1410 group
->id_list
[group
->num_crtcs
+ group
->num_encoders
++] =
1413 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
)
1414 group
->id_list
[group
->num_crtcs
+ group
->num_encoders
+
1415 group
->num_connectors
++] = connector
->base
.id
;
1417 list_for_each_entry(bridge
, &dev
->mode_config
.bridge_list
, head
)
1418 group
->id_list
[group
->num_crtcs
+ group
->num_encoders
+
1419 group
->num_connectors
+ group
->num_bridges
++] =
1424 EXPORT_SYMBOL(drm_mode_group_init_legacy_group
);
1427 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
1428 * @out: drm_mode_modeinfo struct to return to the user
1429 * @in: drm_display_mode to use
1431 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
1434 static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo
*out
,
1435 const struct drm_display_mode
*in
)
1437 WARN(in
->hdisplay
> USHRT_MAX
|| in
->hsync_start
> USHRT_MAX
||
1438 in
->hsync_end
> USHRT_MAX
|| in
->htotal
> USHRT_MAX
||
1439 in
->hskew
> USHRT_MAX
|| in
->vdisplay
> USHRT_MAX
||
1440 in
->vsync_start
> USHRT_MAX
|| in
->vsync_end
> USHRT_MAX
||
1441 in
->vtotal
> USHRT_MAX
|| in
->vscan
> USHRT_MAX
,
1442 "timing values too large for mode info\n");
1444 out
->clock
= in
->clock
;
1445 out
->hdisplay
= in
->hdisplay
;
1446 out
->hsync_start
= in
->hsync_start
;
1447 out
->hsync_end
= in
->hsync_end
;
1448 out
->htotal
= in
->htotal
;
1449 out
->hskew
= in
->hskew
;
1450 out
->vdisplay
= in
->vdisplay
;
1451 out
->vsync_start
= in
->vsync_start
;
1452 out
->vsync_end
= in
->vsync_end
;
1453 out
->vtotal
= in
->vtotal
;
1454 out
->vscan
= in
->vscan
;
1455 out
->vrefresh
= in
->vrefresh
;
1456 out
->flags
= in
->flags
;
1457 out
->type
= in
->type
;
1458 strncpy(out
->name
, in
->name
, DRM_DISPLAY_MODE_LEN
);
1459 out
->name
[DRM_DISPLAY_MODE_LEN
-1] = 0;
1463 * drm_crtc_convert_umode - convert a modeinfo into a drm_display_mode
1464 * @out: drm_display_mode to return to the user
1465 * @in: drm_mode_modeinfo to use
1467 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
1471 * Zero on success, errno on failure.
1473 static int drm_crtc_convert_umode(struct drm_display_mode
*out
,
1474 const struct drm_mode_modeinfo
*in
)
1476 if (in
->clock
> INT_MAX
|| in
->vrefresh
> INT_MAX
)
1479 if ((in
->flags
& DRM_MODE_FLAG_3D_MASK
) > DRM_MODE_FLAG_3D_MAX
)
1482 out
->clock
= in
->clock
;
1483 out
->hdisplay
= in
->hdisplay
;
1484 out
->hsync_start
= in
->hsync_start
;
1485 out
->hsync_end
= in
->hsync_end
;
1486 out
->htotal
= in
->htotal
;
1487 out
->hskew
= in
->hskew
;
1488 out
->vdisplay
= in
->vdisplay
;
1489 out
->vsync_start
= in
->vsync_start
;
1490 out
->vsync_end
= in
->vsync_end
;
1491 out
->vtotal
= in
->vtotal
;
1492 out
->vscan
= in
->vscan
;
1493 out
->vrefresh
= in
->vrefresh
;
1494 out
->flags
= in
->flags
;
1495 out
->type
= in
->type
;
1496 strncpy(out
->name
, in
->name
, DRM_DISPLAY_MODE_LEN
);
1497 out
->name
[DRM_DISPLAY_MODE_LEN
-1] = 0;
1503 * drm_mode_getresources - get graphics configuration
1504 * @dev: drm device for the ioctl
1505 * @data: data pointer for the ioctl
1506 * @file_priv: drm file for the ioctl call
1508 * Construct a set of configuration description structures and return
1509 * them to the user, including CRTC, connector and framebuffer configuration.
1511 * Called by the user via ioctl.
1514 * Zero on success, errno on failure.
1516 int drm_mode_getresources(struct drm_device
*dev
, void *data
,
1517 struct drm_file
*file_priv
)
1519 struct drm_mode_card_res
*card_res
= data
;
1520 struct list_head
*lh
;
1521 struct drm_framebuffer
*fb
;
1522 struct drm_connector
*connector
;
1523 struct drm_crtc
*crtc
;
1524 struct drm_encoder
*encoder
;
1526 int connector_count
= 0;
1529 int encoder_count
= 0;
1531 uint32_t __user
*fb_id
;
1532 uint32_t __user
*crtc_id
;
1533 uint32_t __user
*connector_id
;
1534 uint32_t __user
*encoder_id
;
1535 struct drm_mode_group
*mode_group
;
1537 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
1541 mutex_lock(&file_priv
->fbs_lock
);
1543 * For the non-control nodes we need to limit the list of resources
1544 * by IDs in the group list for this node
1546 list_for_each(lh
, &file_priv
->fbs
)
1549 /* handle this in 4 parts */
1551 if (card_res
->count_fbs
>= fb_count
) {
1553 fb_id
= (uint32_t __user
*)(unsigned long)card_res
->fb_id_ptr
;
1554 list_for_each_entry(fb
, &file_priv
->fbs
, filp_head
) {
1555 if (put_user(fb
->base
.id
, fb_id
+ copied
)) {
1556 mutex_unlock(&file_priv
->fbs_lock
);
1562 card_res
->count_fbs
= fb_count
;
1563 mutex_unlock(&file_priv
->fbs_lock
);
1565 drm_modeset_lock_all(dev
);
1566 if (!drm_is_primary_client(file_priv
)) {
1569 list_for_each(lh
, &dev
->mode_config
.crtc_list
)
1572 list_for_each(lh
, &dev
->mode_config
.connector_list
)
1575 list_for_each(lh
, &dev
->mode_config
.encoder_list
)
1579 mode_group
= &file_priv
->master
->minor
->mode_group
;
1580 crtc_count
= mode_group
->num_crtcs
;
1581 connector_count
= mode_group
->num_connectors
;
1582 encoder_count
= mode_group
->num_encoders
;
1585 card_res
->max_height
= dev
->mode_config
.max_height
;
1586 card_res
->min_height
= dev
->mode_config
.min_height
;
1587 card_res
->max_width
= dev
->mode_config
.max_width
;
1588 card_res
->min_width
= dev
->mode_config
.min_width
;
1591 if (card_res
->count_crtcs
>= crtc_count
) {
1593 crtc_id
= (uint32_t __user
*)(unsigned long)card_res
->crtc_id_ptr
;
1595 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
,
1597 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc
->base
.id
);
1598 if (put_user(crtc
->base
.id
, crtc_id
+ copied
)) {
1605 for (i
= 0; i
< mode_group
->num_crtcs
; i
++) {
1606 if (put_user(mode_group
->id_list
[i
],
1607 crtc_id
+ copied
)) {
1615 card_res
->count_crtcs
= crtc_count
;
1618 if (card_res
->count_encoders
>= encoder_count
) {
1620 encoder_id
= (uint32_t __user
*)(unsigned long)card_res
->encoder_id_ptr
;
1622 list_for_each_entry(encoder
,
1623 &dev
->mode_config
.encoder_list
,
1625 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder
->base
.id
,
1626 drm_get_encoder_name(encoder
));
1627 if (put_user(encoder
->base
.id
, encoder_id
+
1635 for (i
= mode_group
->num_crtcs
; i
< mode_group
->num_crtcs
+ mode_group
->num_encoders
; i
++) {
1636 if (put_user(mode_group
->id_list
[i
],
1637 encoder_id
+ copied
)) {
1646 card_res
->count_encoders
= encoder_count
;
1649 if (card_res
->count_connectors
>= connector_count
) {
1651 connector_id
= (uint32_t __user
*)(unsigned long)card_res
->connector_id_ptr
;
1653 list_for_each_entry(connector
,
1654 &dev
->mode_config
.connector_list
,
1656 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1658 drm_get_connector_name(connector
));
1659 if (put_user(connector
->base
.id
,
1660 connector_id
+ copied
)) {
1667 int start
= mode_group
->num_crtcs
+
1668 mode_group
->num_encoders
;
1669 for (i
= start
; i
< start
+ mode_group
->num_connectors
; i
++) {
1670 if (put_user(mode_group
->id_list
[i
],
1671 connector_id
+ copied
)) {
1679 card_res
->count_connectors
= connector_count
;
1681 DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res
->count_crtcs
,
1682 card_res
->count_connectors
, card_res
->count_encoders
);
1685 drm_modeset_unlock_all(dev
);
1690 * drm_mode_getcrtc - get CRTC configuration
1691 * @dev: drm device for the ioctl
1692 * @data: data pointer for the ioctl
1693 * @file_priv: drm file for the ioctl call
1695 * Construct a CRTC configuration structure to return to the user.
1697 * Called by the user via ioctl.
1700 * Zero on success, errno on failure.
1702 int drm_mode_getcrtc(struct drm_device
*dev
,
1703 void *data
, struct drm_file
*file_priv
)
1705 struct drm_mode_crtc
*crtc_resp
= data
;
1706 struct drm_crtc
*crtc
;
1707 struct drm_mode_object
*obj
;
1710 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
1713 drm_modeset_lock_all(dev
);
1715 obj
= drm_mode_object_find(dev
, crtc_resp
->crtc_id
,
1716 DRM_MODE_OBJECT_CRTC
);
1721 crtc
= obj_to_crtc(obj
);
1723 crtc_resp
->x
= crtc
->x
;
1724 crtc_resp
->y
= crtc
->y
;
1725 crtc_resp
->gamma_size
= crtc
->gamma_size
;
1726 if (crtc
->primary
->fb
)
1727 crtc_resp
->fb_id
= crtc
->primary
->fb
->base
.id
;
1729 crtc_resp
->fb_id
= 0;
1731 if (crtc
->enabled
) {
1733 drm_crtc_convert_to_umode(&crtc_resp
->mode
, &crtc
->mode
);
1734 crtc_resp
->mode_valid
= 1;
1737 crtc_resp
->mode_valid
= 0;
1741 drm_modeset_unlock_all(dev
);
1745 static bool drm_mode_expose_to_userspace(const struct drm_display_mode
*mode
,
1746 const struct drm_file
*file_priv
)
1749 * If user-space hasn't configured the driver to expose the stereo 3D
1750 * modes, don't expose them.
1752 if (!file_priv
->stereo_allowed
&& drm_mode_is_stereo(mode
))
1759 * drm_mode_getconnector - get connector configuration
1760 * @dev: drm device for the ioctl
1761 * @data: data pointer for the ioctl
1762 * @file_priv: drm file for the ioctl call
1764 * Construct a connector configuration structure to return to the user.
1766 * Called by the user via ioctl.
1769 * Zero on success, errno on failure.
1771 int drm_mode_getconnector(struct drm_device
*dev
, void *data
,
1772 struct drm_file
*file_priv
)
1774 struct drm_mode_get_connector
*out_resp
= data
;
1775 struct drm_mode_object
*obj
;
1776 struct drm_connector
*connector
;
1777 struct drm_display_mode
*mode
;
1779 int props_count
= 0;
1780 int encoders_count
= 0;
1784 struct drm_mode_modeinfo u_mode
;
1785 struct drm_mode_modeinfo __user
*mode_ptr
;
1786 uint32_t __user
*prop_ptr
;
1787 uint64_t __user
*prop_values
;
1788 uint32_t __user
*encoder_ptr
;
1790 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
1793 memset(&u_mode
, 0, sizeof(struct drm_mode_modeinfo
));
1795 DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp
->connector_id
);
1797 mutex_lock(&dev
->mode_config
.mutex
);
1799 obj
= drm_mode_object_find(dev
, out_resp
->connector_id
,
1800 DRM_MODE_OBJECT_CONNECTOR
);
1805 connector
= obj_to_connector(obj
);
1807 props_count
= connector
->properties
.count
;
1809 for (i
= 0; i
< DRM_CONNECTOR_MAX_ENCODER
; i
++) {
1810 if (connector
->encoder_ids
[i
] != 0) {
1815 if (out_resp
->count_modes
== 0) {
1816 connector
->funcs
->fill_modes(connector
,
1817 dev
->mode_config
.max_width
,
1818 dev
->mode_config
.max_height
);
1821 /* delayed so we get modes regardless of pre-fill_modes state */
1822 list_for_each_entry(mode
, &connector
->modes
, head
)
1823 if (drm_mode_expose_to_userspace(mode
, file_priv
))
1826 out_resp
->connector_id
= connector
->base
.id
;
1827 out_resp
->connector_type
= connector
->connector_type
;
1828 out_resp
->connector_type_id
= connector
->connector_type_id
;
1829 out_resp
->mm_width
= connector
->display_info
.width_mm
;
1830 out_resp
->mm_height
= connector
->display_info
.height_mm
;
1831 out_resp
->subpixel
= connector
->display_info
.subpixel_order
;
1832 out_resp
->connection
= connector
->status
;
1833 if (connector
->encoder
)
1834 out_resp
->encoder_id
= connector
->encoder
->base
.id
;
1836 out_resp
->encoder_id
= 0;
1839 * This ioctl is called twice, once to determine how much space is
1840 * needed, and the 2nd time to fill it.
1842 if ((out_resp
->count_modes
>= mode_count
) && mode_count
) {
1844 mode_ptr
= (struct drm_mode_modeinfo __user
*)(unsigned long)out_resp
->modes_ptr
;
1845 list_for_each_entry(mode
, &connector
->modes
, head
) {
1846 if (!drm_mode_expose_to_userspace(mode
, file_priv
))
1849 drm_crtc_convert_to_umode(&u_mode
, mode
);
1850 if (copy_to_user(mode_ptr
+ copied
,
1851 &u_mode
, sizeof(u_mode
))) {
1858 out_resp
->count_modes
= mode_count
;
1860 if ((out_resp
->count_props
>= props_count
) && props_count
) {
1862 prop_ptr
= (uint32_t __user
*)(unsigned long)(out_resp
->props_ptr
);
1863 prop_values
= (uint64_t __user
*)(unsigned long)(out_resp
->prop_values_ptr
);
1864 for (i
= 0; i
< connector
->properties
.count
; i
++) {
1865 if (put_user(connector
->properties
.ids
[i
],
1866 prop_ptr
+ copied
)) {
1871 if (put_user(connector
->properties
.values
[i
],
1872 prop_values
+ copied
)) {
1879 out_resp
->count_props
= props_count
;
1881 if ((out_resp
->count_encoders
>= encoders_count
) && encoders_count
) {
1883 encoder_ptr
= (uint32_t __user
*)(unsigned long)(out_resp
->encoders_ptr
);
1884 for (i
= 0; i
< DRM_CONNECTOR_MAX_ENCODER
; i
++) {
1885 if (connector
->encoder_ids
[i
] != 0) {
1886 if (put_user(connector
->encoder_ids
[i
],
1887 encoder_ptr
+ copied
)) {
1895 out_resp
->count_encoders
= encoders_count
;
1898 mutex_unlock(&dev
->mode_config
.mutex
);
1904 * drm_mode_getencoder - get encoder configuration
1905 * @dev: drm device for the ioctl
1906 * @data: data pointer for the ioctl
1907 * @file_priv: drm file for the ioctl call
1909 * Construct a encoder configuration structure to return to the user.
1911 * Called by the user via ioctl.
1914 * Zero on success, errno on failure.
1916 int drm_mode_getencoder(struct drm_device
*dev
, void *data
,
1917 struct drm_file
*file_priv
)
1919 struct drm_mode_get_encoder
*enc_resp
= data
;
1920 struct drm_mode_object
*obj
;
1921 struct drm_encoder
*encoder
;
1924 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
1927 drm_modeset_lock_all(dev
);
1928 obj
= drm_mode_object_find(dev
, enc_resp
->encoder_id
,
1929 DRM_MODE_OBJECT_ENCODER
);
1934 encoder
= obj_to_encoder(obj
);
1937 enc_resp
->crtc_id
= encoder
->crtc
->base
.id
;
1939 enc_resp
->crtc_id
= 0;
1940 enc_resp
->encoder_type
= encoder
->encoder_type
;
1941 enc_resp
->encoder_id
= encoder
->base
.id
;
1942 enc_resp
->possible_crtcs
= encoder
->possible_crtcs
;
1943 enc_resp
->possible_clones
= encoder
->possible_clones
;
1946 drm_modeset_unlock_all(dev
);
1951 * drm_mode_getplane_res - enumerate all plane resources
1954 * @file_priv: DRM file info
1956 * Construct a list of plane ids to return to the user.
1958 * Called by the user via ioctl.
1961 * Zero on success, errno on failure.
1963 int drm_mode_getplane_res(struct drm_device
*dev
, void *data
,
1964 struct drm_file
*file_priv
)
1966 struct drm_mode_get_plane_res
*plane_resp
= data
;
1967 struct drm_mode_config
*config
;
1968 struct drm_plane
*plane
;
1969 uint32_t __user
*plane_ptr
;
1970 int copied
= 0, ret
= 0;
1971 unsigned num_planes
;
1973 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
1976 drm_modeset_lock_all(dev
);
1977 config
= &dev
->mode_config
;
1979 if (file_priv
->universal_planes
)
1980 num_planes
= config
->num_total_plane
;
1982 num_planes
= config
->num_overlay_plane
;
1985 * This ioctl is called twice, once to determine how much space is
1986 * needed, and the 2nd time to fill it.
1989 (plane_resp
->count_planes
>= num_planes
)) {
1990 plane_ptr
= (uint32_t __user
*)(unsigned long)plane_resp
->plane_id_ptr
;
1992 list_for_each_entry(plane
, &config
->plane_list
, head
) {
1994 * Unless userspace set the 'universal planes'
1995 * capability bit, only advertise overlays.
1997 if (plane
->type
!= DRM_PLANE_TYPE_OVERLAY
&&
1998 !file_priv
->universal_planes
)
2001 if (put_user(plane
->base
.id
, plane_ptr
+ copied
)) {
2008 plane_resp
->count_planes
= num_planes
;
2011 drm_modeset_unlock_all(dev
);
2016 * drm_mode_getplane - get plane configuration
2019 * @file_priv: DRM file info
2021 * Construct a plane configuration structure to return to the user.
2023 * Called by the user via ioctl.
2026 * Zero on success, errno on failure.
2028 int drm_mode_getplane(struct drm_device
*dev
, void *data
,
2029 struct drm_file
*file_priv
)
2031 struct drm_mode_get_plane
*plane_resp
= data
;
2032 struct drm_mode_object
*obj
;
2033 struct drm_plane
*plane
;
2034 uint32_t __user
*format_ptr
;
2037 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2040 drm_modeset_lock_all(dev
);
2041 obj
= drm_mode_object_find(dev
, plane_resp
->plane_id
,
2042 DRM_MODE_OBJECT_PLANE
);
2047 plane
= obj_to_plane(obj
);
2050 plane_resp
->crtc_id
= plane
->crtc
->base
.id
;
2052 plane_resp
->crtc_id
= 0;
2055 plane_resp
->fb_id
= plane
->fb
->base
.id
;
2057 plane_resp
->fb_id
= 0;
2059 plane_resp
->plane_id
= plane
->base
.id
;
2060 plane_resp
->possible_crtcs
= plane
->possible_crtcs
;
2061 plane_resp
->gamma_size
= 0;
2064 * This ioctl is called twice, once to determine how much space is
2065 * needed, and the 2nd time to fill it.
2067 if (plane
->format_count
&&
2068 (plane_resp
->count_format_types
>= plane
->format_count
)) {
2069 format_ptr
= (uint32_t __user
*)(unsigned long)plane_resp
->format_type_ptr
;
2070 if (copy_to_user(format_ptr
,
2071 plane
->format_types
,
2072 sizeof(uint32_t) * plane
->format_count
)) {
2077 plane_resp
->count_format_types
= plane
->format_count
;
2080 drm_modeset_unlock_all(dev
);
2085 * drm_mode_setplane - configure a plane's configuration
2087 * @data: ioctl data*
2088 * @file_priv: DRM file info
2090 * Set plane configuration, including placement, fb, scaling, and other factors.
2091 * Or pass a NULL fb to disable.
2094 * Zero on success, errno on failure.
2096 int drm_mode_setplane(struct drm_device
*dev
, void *data
,
2097 struct drm_file
*file_priv
)
2099 struct drm_mode_set_plane
*plane_req
= data
;
2100 struct drm_mode_object
*obj
;
2101 struct drm_plane
*plane
;
2102 struct drm_crtc
*crtc
;
2103 struct drm_framebuffer
*fb
= NULL
, *old_fb
= NULL
;
2105 unsigned int fb_width
, fb_height
;
2108 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2112 * First, find the plane, crtc, and fb objects. If not available,
2113 * we don't bother to call the driver.
2115 obj
= drm_mode_object_find(dev
, plane_req
->plane_id
,
2116 DRM_MODE_OBJECT_PLANE
);
2118 DRM_DEBUG_KMS("Unknown plane ID %d\n",
2119 plane_req
->plane_id
);
2122 plane
= obj_to_plane(obj
);
2124 /* No fb means shut it down */
2125 if (!plane_req
->fb_id
) {
2126 drm_modeset_lock_all(dev
);
2128 ret
= plane
->funcs
->disable_plane(plane
);
2135 drm_modeset_unlock_all(dev
);
2139 obj
= drm_mode_object_find(dev
, plane_req
->crtc_id
,
2140 DRM_MODE_OBJECT_CRTC
);
2142 DRM_DEBUG_KMS("Unknown crtc ID %d\n",
2143 plane_req
->crtc_id
);
2147 crtc
= obj_to_crtc(obj
);
2149 fb
= drm_framebuffer_lookup(dev
, plane_req
->fb_id
);
2151 DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
2157 /* Check whether this plane supports the fb pixel format. */
2158 for (i
= 0; i
< plane
->format_count
; i
++)
2159 if (fb
->pixel_format
== plane
->format_types
[i
])
2161 if (i
== plane
->format_count
) {
2162 DRM_DEBUG_KMS("Invalid pixel format %s\n",
2163 drm_get_format_name(fb
->pixel_format
));
2168 fb_width
= fb
->width
<< 16;
2169 fb_height
= fb
->height
<< 16;
2171 /* Make sure source coordinates are inside the fb. */
2172 if (plane_req
->src_w
> fb_width
||
2173 plane_req
->src_x
> fb_width
- plane_req
->src_w
||
2174 plane_req
->src_h
> fb_height
||
2175 plane_req
->src_y
> fb_height
- plane_req
->src_h
) {
2176 DRM_DEBUG_KMS("Invalid source coordinates "
2177 "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
2178 plane_req
->src_w
>> 16,
2179 ((plane_req
->src_w
& 0xffff) * 15625) >> 10,
2180 plane_req
->src_h
>> 16,
2181 ((plane_req
->src_h
& 0xffff) * 15625) >> 10,
2182 plane_req
->src_x
>> 16,
2183 ((plane_req
->src_x
& 0xffff) * 15625) >> 10,
2184 plane_req
->src_y
>> 16,
2185 ((plane_req
->src_y
& 0xffff) * 15625) >> 10);
2190 /* Give drivers some help against integer overflows */
2191 if (plane_req
->crtc_w
> INT_MAX
||
2192 plane_req
->crtc_x
> INT_MAX
- (int32_t) plane_req
->crtc_w
||
2193 plane_req
->crtc_h
> INT_MAX
||
2194 plane_req
->crtc_y
> INT_MAX
- (int32_t) plane_req
->crtc_h
) {
2195 DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
2196 plane_req
->crtc_w
, plane_req
->crtc_h
,
2197 plane_req
->crtc_x
, plane_req
->crtc_y
);
2202 drm_modeset_lock_all(dev
);
2204 ret
= plane
->funcs
->update_plane(plane
, crtc
, fb
,
2205 plane_req
->crtc_x
, plane_req
->crtc_y
,
2206 plane_req
->crtc_w
, plane_req
->crtc_h
,
2207 plane_req
->src_x
, plane_req
->src_y
,
2208 plane_req
->src_w
, plane_req
->src_h
);
2216 drm_modeset_unlock_all(dev
);
2220 drm_framebuffer_unreference(fb
);
2222 drm_framebuffer_unreference(old_fb
);
2228 * drm_mode_set_config_internal - helper to call ->set_config
2229 * @set: modeset config to set
2231 * This is a little helper to wrap internal calls to the ->set_config driver
2232 * interface. The only thing it adds is correct refcounting dance.
2235 * Zero on success, errno on failure.
2237 int drm_mode_set_config_internal(struct drm_mode_set
*set
)
2239 struct drm_crtc
*crtc
= set
->crtc
;
2240 struct drm_framebuffer
*fb
;
2241 struct drm_crtc
*tmp
;
2245 * NOTE: ->set_config can also disable other crtcs (if we steal all
2246 * connectors from it), hence we need to refcount the fbs across all
2247 * crtcs. Atomic modeset will have saner semantics ...
2249 list_for_each_entry(tmp
, &crtc
->dev
->mode_config
.crtc_list
, head
)
2250 tmp
->old_fb
= tmp
->primary
->fb
;
2254 ret
= crtc
->funcs
->set_config(set
);
2256 crtc
->primary
->crtc
= crtc
;
2257 crtc
->primary
->fb
= fb
;
2260 list_for_each_entry(tmp
, &crtc
->dev
->mode_config
.crtc_list
, head
) {
2261 if (tmp
->primary
->fb
)
2262 drm_framebuffer_reference(tmp
->primary
->fb
);
2264 drm_framebuffer_unreference(tmp
->old_fb
);
2269 EXPORT_SYMBOL(drm_mode_set_config_internal
);
2272 * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the
2274 * @crtc: CRTC that framebuffer will be displayed on
2277 * @mode: mode that framebuffer will be displayed under
2278 * @fb: framebuffer to check size of
2280 int drm_crtc_check_viewport(const struct drm_crtc
*crtc
,
2282 const struct drm_display_mode
*mode
,
2283 const struct drm_framebuffer
*fb
)
2286 int hdisplay
, vdisplay
;
2288 hdisplay
= mode
->hdisplay
;
2289 vdisplay
= mode
->vdisplay
;
2291 if (drm_mode_is_stereo(mode
)) {
2292 struct drm_display_mode adjusted
= *mode
;
2294 drm_mode_set_crtcinfo(&adjusted
, CRTC_STEREO_DOUBLE
);
2295 hdisplay
= adjusted
.crtc_hdisplay
;
2296 vdisplay
= adjusted
.crtc_vdisplay
;
2299 if (crtc
->invert_dimensions
)
2300 swap(hdisplay
, vdisplay
);
2302 if (hdisplay
> fb
->width
||
2303 vdisplay
> fb
->height
||
2304 x
> fb
->width
- hdisplay
||
2305 y
> fb
->height
- vdisplay
) {
2306 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
2307 fb
->width
, fb
->height
, hdisplay
, vdisplay
, x
, y
,
2308 crtc
->invert_dimensions
? " (inverted)" : "");
2314 EXPORT_SYMBOL(drm_crtc_check_viewport
);
2317 * drm_mode_setcrtc - set CRTC configuration
2318 * @dev: drm device for the ioctl
2319 * @data: data pointer for the ioctl
2320 * @file_priv: drm file for the ioctl call
2322 * Build a new CRTC configuration based on user request.
2324 * Called by the user via ioctl.
2327 * Zero on success, errno on failure.
2329 int drm_mode_setcrtc(struct drm_device
*dev
, void *data
,
2330 struct drm_file
*file_priv
)
2332 struct drm_mode_config
*config
= &dev
->mode_config
;
2333 struct drm_mode_crtc
*crtc_req
= data
;
2334 struct drm_mode_object
*obj
;
2335 struct drm_crtc
*crtc
;
2336 struct drm_connector
**connector_set
= NULL
, *connector
;
2337 struct drm_framebuffer
*fb
= NULL
;
2338 struct drm_display_mode
*mode
= NULL
;
2339 struct drm_mode_set set
;
2340 uint32_t __user
*set_connectors_ptr
;
2344 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2347 /* For some reason crtc x/y offsets are signed internally. */
2348 if (crtc_req
->x
> INT_MAX
|| crtc_req
->y
> INT_MAX
)
2351 drm_modeset_lock_all(dev
);
2352 obj
= drm_mode_object_find(dev
, crtc_req
->crtc_id
,
2353 DRM_MODE_OBJECT_CRTC
);
2355 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req
->crtc_id
);
2359 crtc
= obj_to_crtc(obj
);
2360 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc
->base
.id
);
2362 if (crtc_req
->mode_valid
) {
2363 /* If we have a mode we need a framebuffer. */
2364 /* If we pass -1, set the mode with the currently bound fb */
2365 if (crtc_req
->fb_id
== -1) {
2366 if (!crtc
->primary
->fb
) {
2367 DRM_DEBUG_KMS("CRTC doesn't have current FB\n");
2371 fb
= crtc
->primary
->fb
;
2372 /* Make refcounting symmetric with the lookup path. */
2373 drm_framebuffer_reference(fb
);
2375 fb
= drm_framebuffer_lookup(dev
, crtc_req
->fb_id
);
2377 DRM_DEBUG_KMS("Unknown FB ID%d\n",
2384 mode
= drm_mode_create(dev
);
2390 ret
= drm_crtc_convert_umode(mode
, &crtc_req
->mode
);
2392 DRM_DEBUG_KMS("Invalid mode\n");
2396 drm_mode_set_crtcinfo(mode
, CRTC_INTERLACE_HALVE_V
);
2398 ret
= drm_crtc_check_viewport(crtc
, crtc_req
->x
, crtc_req
->y
,
2405 if (crtc_req
->count_connectors
== 0 && mode
) {
2406 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
2411 if (crtc_req
->count_connectors
> 0 && (!mode
|| !fb
)) {
2412 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
2413 crtc_req
->count_connectors
);
2418 if (crtc_req
->count_connectors
> 0) {
2421 /* Avoid unbounded kernel memory allocation */
2422 if (crtc_req
->count_connectors
> config
->num_connector
) {
2427 connector_set
= kmalloc(crtc_req
->count_connectors
*
2428 sizeof(struct drm_connector
*),
2430 if (!connector_set
) {
2435 for (i
= 0; i
< crtc_req
->count_connectors
; i
++) {
2436 set_connectors_ptr
= (uint32_t __user
*)(unsigned long)crtc_req
->set_connectors_ptr
;
2437 if (get_user(out_id
, &set_connectors_ptr
[i
])) {
2442 obj
= drm_mode_object_find(dev
, out_id
,
2443 DRM_MODE_OBJECT_CONNECTOR
);
2445 DRM_DEBUG_KMS("Connector id %d unknown\n",
2450 connector
= obj_to_connector(obj
);
2451 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
2453 drm_get_connector_name(connector
));
2455 connector_set
[i
] = connector
;
2460 set
.x
= crtc_req
->x
;
2461 set
.y
= crtc_req
->y
;
2463 set
.connectors
= connector_set
;
2464 set
.num_connectors
= crtc_req
->count_connectors
;
2466 ret
= drm_mode_set_config_internal(&set
);
2470 drm_framebuffer_unreference(fb
);
2472 kfree(connector_set
);
2473 drm_mode_destroy(dev
, mode
);
2474 drm_modeset_unlock_all(dev
);
2478 static int drm_mode_cursor_common(struct drm_device
*dev
,
2479 struct drm_mode_cursor2
*req
,
2480 struct drm_file
*file_priv
)
2482 struct drm_mode_object
*obj
;
2483 struct drm_crtc
*crtc
;
2486 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2489 if (!req
->flags
|| (~DRM_MODE_CURSOR_FLAGS
& req
->flags
))
2492 obj
= drm_mode_object_find(dev
, req
->crtc_id
, DRM_MODE_OBJECT_CRTC
);
2494 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req
->crtc_id
);
2497 crtc
= obj_to_crtc(obj
);
2499 mutex_lock(&crtc
->mutex
);
2500 if (req
->flags
& DRM_MODE_CURSOR_BO
) {
2501 if (!crtc
->funcs
->cursor_set
&& !crtc
->funcs
->cursor_set2
) {
2505 /* Turns off the cursor if handle is 0 */
2506 if (crtc
->funcs
->cursor_set2
)
2507 ret
= crtc
->funcs
->cursor_set2(crtc
, file_priv
, req
->handle
,
2508 req
->width
, req
->height
, req
->hot_x
, req
->hot_y
);
2510 ret
= crtc
->funcs
->cursor_set(crtc
, file_priv
, req
->handle
,
2511 req
->width
, req
->height
);
2514 if (req
->flags
& DRM_MODE_CURSOR_MOVE
) {
2515 if (crtc
->funcs
->cursor_move
) {
2516 ret
= crtc
->funcs
->cursor_move(crtc
, req
->x
, req
->y
);
2523 mutex_unlock(&crtc
->mutex
);
2531 * drm_mode_cursor_ioctl - set CRTC's cursor configuration
2532 * @dev: drm device for the ioctl
2533 * @data: data pointer for the ioctl
2534 * @file_priv: drm file for the ioctl call
2536 * Set the cursor configuration based on user request.
2538 * Called by the user via ioctl.
2541 * Zero on success, errno on failure.
2543 int drm_mode_cursor_ioctl(struct drm_device
*dev
,
2544 void *data
, struct drm_file
*file_priv
)
2546 struct drm_mode_cursor
*req
= data
;
2547 struct drm_mode_cursor2 new_req
;
2549 memcpy(&new_req
, req
, sizeof(struct drm_mode_cursor
));
2550 new_req
.hot_x
= new_req
.hot_y
= 0;
2552 return drm_mode_cursor_common(dev
, &new_req
, file_priv
);
2556 * drm_mode_cursor2_ioctl - set CRTC's cursor configuration
2557 * @dev: drm device for the ioctl
2558 * @data: data pointer for the ioctl
2559 * @file_priv: drm file for the ioctl call
2561 * Set the cursor configuration based on user request. This implements the 2nd
2562 * version of the cursor ioctl, which allows userspace to additionally specify
2563 * the hotspot of the pointer.
2565 * Called by the user via ioctl.
2568 * Zero on success, errno on failure.
2570 int drm_mode_cursor2_ioctl(struct drm_device
*dev
,
2571 void *data
, struct drm_file
*file_priv
)
2573 struct drm_mode_cursor2
*req
= data
;
2574 return drm_mode_cursor_common(dev
, req
, file_priv
);
2578 * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description
2579 * @bpp: bits per pixels
2580 * @depth: bit depth per pixel
2582 * Computes a drm fourcc pixel format code for the given @bpp/@depth values.
2583 * Useful in fbdev emulation code, since that deals in those values.
2585 uint32_t drm_mode_legacy_fb_format(uint32_t bpp
, uint32_t depth
)
2591 fmt
= DRM_FORMAT_C8
;
2595 fmt
= DRM_FORMAT_XRGB1555
;
2597 fmt
= DRM_FORMAT_RGB565
;
2600 fmt
= DRM_FORMAT_RGB888
;
2604 fmt
= DRM_FORMAT_XRGB8888
;
2605 else if (depth
== 30)
2606 fmt
= DRM_FORMAT_XRGB2101010
;
2608 fmt
= DRM_FORMAT_ARGB8888
;
2611 DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n");
2612 fmt
= DRM_FORMAT_XRGB8888
;
2618 EXPORT_SYMBOL(drm_mode_legacy_fb_format
);
2621 * drm_mode_addfb - add an FB to the graphics configuration
2622 * @dev: drm device for the ioctl
2623 * @data: data pointer for the ioctl
2624 * @file_priv: drm file for the ioctl call
2626 * Add a new FB to the specified CRTC, given a user request. This is the
2627 * original addfb ioclt which only supported RGB formats.
2629 * Called by the user via ioctl.
2632 * Zero on success, errno on failure.
2634 int drm_mode_addfb(struct drm_device
*dev
,
2635 void *data
, struct drm_file
*file_priv
)
2637 struct drm_mode_fb_cmd
*or = data
;
2638 struct drm_mode_fb_cmd2 r
= {};
2639 struct drm_mode_config
*config
= &dev
->mode_config
;
2640 struct drm_framebuffer
*fb
;
2643 /* Use new struct with format internally */
2644 r
.fb_id
= or->fb_id
;
2645 r
.width
= or->width
;
2646 r
.height
= or->height
;
2647 r
.pitches
[0] = or->pitch
;
2648 r
.pixel_format
= drm_mode_legacy_fb_format(or->bpp
, or->depth
);
2649 r
.handles
[0] = or->handle
;
2651 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2654 if ((config
->min_width
> r
.width
) || (r
.width
> config
->max_width
))
2657 if ((config
->min_height
> r
.height
) || (r
.height
> config
->max_height
))
2660 fb
= dev
->mode_config
.funcs
->fb_create(dev
, file_priv
, &r
);
2662 DRM_DEBUG_KMS("could not create framebuffer\n");
2666 mutex_lock(&file_priv
->fbs_lock
);
2667 or->fb_id
= fb
->base
.id
;
2668 list_add(&fb
->filp_head
, &file_priv
->fbs
);
2669 DRM_DEBUG_KMS("[FB:%d]\n", fb
->base
.id
);
2670 mutex_unlock(&file_priv
->fbs_lock
);
2675 static int format_check(const struct drm_mode_fb_cmd2
*r
)
2677 uint32_t format
= r
->pixel_format
& ~DRM_FORMAT_BIG_ENDIAN
;
2681 case DRM_FORMAT_RGB332
:
2682 case DRM_FORMAT_BGR233
:
2683 case DRM_FORMAT_XRGB4444
:
2684 case DRM_FORMAT_XBGR4444
:
2685 case DRM_FORMAT_RGBX4444
:
2686 case DRM_FORMAT_BGRX4444
:
2687 case DRM_FORMAT_ARGB4444
:
2688 case DRM_FORMAT_ABGR4444
:
2689 case DRM_FORMAT_RGBA4444
:
2690 case DRM_FORMAT_BGRA4444
:
2691 case DRM_FORMAT_XRGB1555
:
2692 case DRM_FORMAT_XBGR1555
:
2693 case DRM_FORMAT_RGBX5551
:
2694 case DRM_FORMAT_BGRX5551
:
2695 case DRM_FORMAT_ARGB1555
:
2696 case DRM_FORMAT_ABGR1555
:
2697 case DRM_FORMAT_RGBA5551
:
2698 case DRM_FORMAT_BGRA5551
:
2699 case DRM_FORMAT_RGB565
:
2700 case DRM_FORMAT_BGR565
:
2701 case DRM_FORMAT_RGB888
:
2702 case DRM_FORMAT_BGR888
:
2703 case DRM_FORMAT_XRGB8888
:
2704 case DRM_FORMAT_XBGR8888
:
2705 case DRM_FORMAT_RGBX8888
:
2706 case DRM_FORMAT_BGRX8888
:
2707 case DRM_FORMAT_ARGB8888
:
2708 case DRM_FORMAT_ABGR8888
:
2709 case DRM_FORMAT_RGBA8888
:
2710 case DRM_FORMAT_BGRA8888
:
2711 case DRM_FORMAT_XRGB2101010
:
2712 case DRM_FORMAT_XBGR2101010
:
2713 case DRM_FORMAT_RGBX1010102
:
2714 case DRM_FORMAT_BGRX1010102
:
2715 case DRM_FORMAT_ARGB2101010
:
2716 case DRM_FORMAT_ABGR2101010
:
2717 case DRM_FORMAT_RGBA1010102
:
2718 case DRM_FORMAT_BGRA1010102
:
2719 case DRM_FORMAT_YUYV
:
2720 case DRM_FORMAT_YVYU
:
2721 case DRM_FORMAT_UYVY
:
2722 case DRM_FORMAT_VYUY
:
2723 case DRM_FORMAT_AYUV
:
2724 case DRM_FORMAT_NV12
:
2725 case DRM_FORMAT_NV21
:
2726 case DRM_FORMAT_NV16
:
2727 case DRM_FORMAT_NV61
:
2728 case DRM_FORMAT_NV24
:
2729 case DRM_FORMAT_NV42
:
2730 case DRM_FORMAT_YUV410
:
2731 case DRM_FORMAT_YVU410
:
2732 case DRM_FORMAT_YUV411
:
2733 case DRM_FORMAT_YVU411
:
2734 case DRM_FORMAT_YUV420
:
2735 case DRM_FORMAT_YVU420
:
2736 case DRM_FORMAT_YUV422
:
2737 case DRM_FORMAT_YVU422
:
2738 case DRM_FORMAT_YUV444
:
2739 case DRM_FORMAT_YVU444
:
2742 DRM_DEBUG_KMS("invalid pixel format %s\n",
2743 drm_get_format_name(r
->pixel_format
));
2748 static int framebuffer_check(const struct drm_mode_fb_cmd2
*r
)
2750 int ret
, hsub
, vsub
, num_planes
, i
;
2752 ret
= format_check(r
);
2754 DRM_DEBUG_KMS("bad framebuffer format %s\n",
2755 drm_get_format_name(r
->pixel_format
));
2759 hsub
= drm_format_horz_chroma_subsampling(r
->pixel_format
);
2760 vsub
= drm_format_vert_chroma_subsampling(r
->pixel_format
);
2761 num_planes
= drm_format_num_planes(r
->pixel_format
);
2763 if (r
->width
== 0 || r
->width
% hsub
) {
2764 DRM_DEBUG_KMS("bad framebuffer width %u\n", r
->height
);
2768 if (r
->height
== 0 || r
->height
% vsub
) {
2769 DRM_DEBUG_KMS("bad framebuffer height %u\n", r
->height
);
2773 for (i
= 0; i
< num_planes
; i
++) {
2774 unsigned int width
= r
->width
/ (i
!= 0 ? hsub
: 1);
2775 unsigned int height
= r
->height
/ (i
!= 0 ? vsub
: 1);
2776 unsigned int cpp
= drm_format_plane_cpp(r
->pixel_format
, i
);
2778 if (!r
->handles
[i
]) {
2779 DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i
);
2783 if ((uint64_t) width
* cpp
> UINT_MAX
)
2786 if ((uint64_t) height
* r
->pitches
[i
] + r
->offsets
[i
] > UINT_MAX
)
2789 if (r
->pitches
[i
] < width
* cpp
) {
2790 DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r
->pitches
[i
], i
);
2799 * drm_mode_addfb2 - add an FB to the graphics configuration
2800 * @dev: drm device for the ioctl
2801 * @data: data pointer for the ioctl
2802 * @file_priv: drm file for the ioctl call
2804 * Add a new FB to the specified CRTC, given a user request with format. This is
2805 * the 2nd version of the addfb ioctl, which supports multi-planar framebuffers
2806 * and uses fourcc codes as pixel format specifiers.
2808 * Called by the user via ioctl.
2811 * Zero on success, errno on failure.
2813 int drm_mode_addfb2(struct drm_device
*dev
,
2814 void *data
, struct drm_file
*file_priv
)
2816 struct drm_mode_fb_cmd2
*r
= data
;
2817 struct drm_mode_config
*config
= &dev
->mode_config
;
2818 struct drm_framebuffer
*fb
;
2821 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2824 if (r
->flags
& ~DRM_MODE_FB_INTERLACED
) {
2825 DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r
->flags
);
2829 if ((config
->min_width
> r
->width
) || (r
->width
> config
->max_width
)) {
2830 DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n",
2831 r
->width
, config
->min_width
, config
->max_width
);
2834 if ((config
->min_height
> r
->height
) || (r
->height
> config
->max_height
)) {
2835 DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n",
2836 r
->height
, config
->min_height
, config
->max_height
);
2840 ret
= framebuffer_check(r
);
2844 fb
= dev
->mode_config
.funcs
->fb_create(dev
, file_priv
, r
);
2846 DRM_DEBUG_KMS("could not create framebuffer\n");
2850 mutex_lock(&file_priv
->fbs_lock
);
2851 r
->fb_id
= fb
->base
.id
;
2852 list_add(&fb
->filp_head
, &file_priv
->fbs
);
2853 DRM_DEBUG_KMS("[FB:%d]\n", fb
->base
.id
);
2854 mutex_unlock(&file_priv
->fbs_lock
);
2861 * drm_mode_rmfb - remove an FB from the configuration
2862 * @dev: drm device for the ioctl
2863 * @data: data pointer for the ioctl
2864 * @file_priv: drm file for the ioctl call
2866 * Remove the FB specified by the user.
2868 * Called by the user via ioctl.
2871 * Zero on success, errno on failure.
2873 int drm_mode_rmfb(struct drm_device
*dev
,
2874 void *data
, struct drm_file
*file_priv
)
2876 struct drm_framebuffer
*fb
= NULL
;
2877 struct drm_framebuffer
*fbl
= NULL
;
2878 uint32_t *id
= data
;
2881 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2884 mutex_lock(&file_priv
->fbs_lock
);
2885 mutex_lock(&dev
->mode_config
.fb_lock
);
2886 fb
= __drm_framebuffer_lookup(dev
, *id
);
2890 list_for_each_entry(fbl
, &file_priv
->fbs
, filp_head
)
2896 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
2897 __drm_framebuffer_unregister(dev
, fb
);
2899 list_del_init(&fb
->filp_head
);
2900 mutex_unlock(&dev
->mode_config
.fb_lock
);
2901 mutex_unlock(&file_priv
->fbs_lock
);
2903 drm_framebuffer_remove(fb
);
2908 mutex_unlock(&dev
->mode_config
.fb_lock
);
2909 mutex_unlock(&file_priv
->fbs_lock
);
2915 * drm_mode_getfb - get FB info
2916 * @dev: drm device for the ioctl
2917 * @data: data pointer for the ioctl
2918 * @file_priv: drm file for the ioctl call
2920 * Lookup the FB given its ID and return info about it.
2922 * Called by the user via ioctl.
2925 * Zero on success, errno on failure.
2927 int drm_mode_getfb(struct drm_device
*dev
,
2928 void *data
, struct drm_file
*file_priv
)
2930 struct drm_mode_fb_cmd
*r
= data
;
2931 struct drm_framebuffer
*fb
;
2934 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2937 fb
= drm_framebuffer_lookup(dev
, r
->fb_id
);
2941 r
->height
= fb
->height
;
2942 r
->width
= fb
->width
;
2943 r
->depth
= fb
->depth
;
2944 r
->bpp
= fb
->bits_per_pixel
;
2945 r
->pitch
= fb
->pitches
[0];
2946 if (fb
->funcs
->create_handle
) {
2947 if (file_priv
->is_master
|| capable(CAP_SYS_ADMIN
) ||
2948 drm_is_control_client(file_priv
)) {
2949 ret
= fb
->funcs
->create_handle(fb
, file_priv
,
2952 /* GET_FB() is an unprivileged ioctl so we must not
2953 * return a buffer-handle to non-master processes! For
2954 * backwards-compatibility reasons, we cannot make
2955 * GET_FB() privileged, so just return an invalid handle
2956 * for non-masters. */
2964 drm_framebuffer_unreference(fb
);
2970 * drm_mode_dirtyfb_ioctl - flush frontbuffer rendering on an FB
2971 * @dev: drm device for the ioctl
2972 * @data: data pointer for the ioctl
2973 * @file_priv: drm file for the ioctl call
2975 * Lookup the FB and flush out the damaged area supplied by userspace as a clip
2976 * rectangle list. Generic userspace which does frontbuffer rendering must call
2977 * this ioctl to flush out the changes on manual-update display outputs, e.g.
2978 * usb display-link, mipi manual update panels or edp panel self refresh modes.
2980 * Modesetting drivers which always update the frontbuffer do not need to
2981 * implement the corresponding ->dirty framebuffer callback.
2983 * Called by the user via ioctl.
2986 * Zero on success, errno on failure.
2988 int drm_mode_dirtyfb_ioctl(struct drm_device
*dev
,
2989 void *data
, struct drm_file
*file_priv
)
2991 struct drm_clip_rect __user
*clips_ptr
;
2992 struct drm_clip_rect
*clips
= NULL
;
2993 struct drm_mode_fb_dirty_cmd
*r
= data
;
2994 struct drm_framebuffer
*fb
;
2999 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
3002 fb
= drm_framebuffer_lookup(dev
, r
->fb_id
);
3006 num_clips
= r
->num_clips
;
3007 clips_ptr
= (struct drm_clip_rect __user
*)(unsigned long)r
->clips_ptr
;
3009 if (!num_clips
!= !clips_ptr
) {
3014 flags
= DRM_MODE_FB_DIRTY_FLAGS
& r
->flags
;
3016 /* If userspace annotates copy, clips must come in pairs */
3017 if (flags
& DRM_MODE_FB_DIRTY_ANNOTATE_COPY
&& (num_clips
% 2)) {
3022 if (num_clips
&& clips_ptr
) {
3023 if (num_clips
< 0 || num_clips
> DRM_MODE_FB_DIRTY_MAX_CLIPS
) {
3027 clips
= kzalloc(num_clips
* sizeof(*clips
), GFP_KERNEL
);
3033 ret
= copy_from_user(clips
, clips_ptr
,
3034 num_clips
* sizeof(*clips
));
3041 if (fb
->funcs
->dirty
) {
3042 ret
= fb
->funcs
->dirty(fb
, file_priv
, flags
, r
->color
,
3051 drm_framebuffer_unreference(fb
);
3058 * drm_fb_release - remove and free the FBs on this file
3059 * @priv: drm file for the ioctl
3061 * Destroy all the FBs associated with @filp.
3063 * Called by the user via ioctl.
3066 * Zero on success, errno on failure.
3068 void drm_fb_release(struct drm_file
*priv
)
3070 struct drm_device
*dev
= priv
->minor
->dev
;
3071 struct drm_framebuffer
*fb
, *tfb
;
3073 mutex_lock(&priv
->fbs_lock
);
3074 list_for_each_entry_safe(fb
, tfb
, &priv
->fbs
, filp_head
) {
3076 mutex_lock(&dev
->mode_config
.fb_lock
);
3077 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
3078 __drm_framebuffer_unregister(dev
, fb
);
3079 mutex_unlock(&dev
->mode_config
.fb_lock
);
3081 list_del_init(&fb
->filp_head
);
3083 /* This will also drop the fpriv->fbs reference. */
3084 drm_framebuffer_remove(fb
);
3086 mutex_unlock(&priv
->fbs_lock
);
3090 * drm_property_create - create a new property type
3092 * @flags: flags specifying the property type
3093 * @name: name of the property
3094 * @num_values: number of pre-defined values
3096 * This creates a new generic drm property which can then be attached to a drm
3097 * object with drm_object_attach_property. The returned property object must be
3098 * freed with drm_property_destroy.
3101 * A pointer to the newly created property on success, NULL on failure.
3103 struct drm_property
*drm_property_create(struct drm_device
*dev
, int flags
,
3104 const char *name
, int num_values
)
3106 struct drm_property
*property
= NULL
;
3109 property
= kzalloc(sizeof(struct drm_property
), GFP_KERNEL
);
3114 property
->values
= kzalloc(sizeof(uint64_t)*num_values
, GFP_KERNEL
);
3115 if (!property
->values
)
3119 ret
= drm_mode_object_get(dev
, &property
->base
, DRM_MODE_OBJECT_PROPERTY
);
3123 property
->flags
= flags
;
3124 property
->num_values
= num_values
;
3125 INIT_LIST_HEAD(&property
->enum_blob_list
);
3128 strncpy(property
->name
, name
, DRM_PROP_NAME_LEN
);
3129 property
->name
[DRM_PROP_NAME_LEN
-1] = '\0';
3132 list_add_tail(&property
->head
, &dev
->mode_config
.property_list
);
3135 kfree(property
->values
);
3139 EXPORT_SYMBOL(drm_property_create
);
3142 * drm_property_create - create a new enumeration property type
3144 * @flags: flags specifying the property type
3145 * @name: name of the property
3146 * @props: enumeration lists with property values
3147 * @num_values: number of pre-defined values
3149 * This creates a new generic drm property which can then be attached to a drm
3150 * object with drm_object_attach_property. The returned property object must be
3151 * freed with drm_property_destroy.
3153 * Userspace is only allowed to set one of the predefined values for enumeration
3157 * A pointer to the newly created property on success, NULL on failure.
3159 struct drm_property
*drm_property_create_enum(struct drm_device
*dev
, int flags
,
3161 const struct drm_prop_enum_list
*props
,
3164 struct drm_property
*property
;
3167 flags
|= DRM_MODE_PROP_ENUM
;
3169 property
= drm_property_create(dev
, flags
, name
, num_values
);
3173 for (i
= 0; i
< num_values
; i
++) {
3174 ret
= drm_property_add_enum(property
, i
,
3178 drm_property_destroy(dev
, property
);
3185 EXPORT_SYMBOL(drm_property_create_enum
);
3188 * drm_property_create - create a new bitmask property type
3190 * @flags: flags specifying the property type
3191 * @name: name of the property
3192 * @props: enumeration lists with property bitflags
3193 * @num_values: number of pre-defined values
3195 * This creates a new generic drm property which can then be attached to a drm
3196 * object with drm_object_attach_property. The returned property object must be
3197 * freed with drm_property_destroy.
3199 * Compared to plain enumeration properties userspace is allowed to set any
3200 * or'ed together combination of the predefined property bitflag values
3203 * A pointer to the newly created property on success, NULL on failure.
3205 struct drm_property
*drm_property_create_bitmask(struct drm_device
*dev
,
3206 int flags
, const char *name
,
3207 const struct drm_prop_enum_list
*props
,
3210 struct drm_property
*property
;
3213 flags
|= DRM_MODE_PROP_BITMASK
;
3215 property
= drm_property_create(dev
, flags
, name
, num_values
);
3219 for (i
= 0; i
< num_values
; i
++) {
3220 ret
= drm_property_add_enum(property
, i
,
3224 drm_property_destroy(dev
, property
);
3231 EXPORT_SYMBOL(drm_property_create_bitmask
);
3234 * drm_property_create - create a new ranged property type
3236 * @flags: flags specifying the property type
3237 * @name: name of the property
3238 * @min: minimum value of the property
3239 * @max: maximum value of the property
3241 * This creates a new generic drm property which can then be attached to a drm
3242 * object with drm_object_attach_property. The returned property object must be
3243 * freed with drm_property_destroy.
3245 * Userspace is allowed to set any interger value in the (min, max) range
3249 * A pointer to the newly created property on success, NULL on failure.
3251 struct drm_property
*drm_property_create_range(struct drm_device
*dev
, int flags
,
3253 uint64_t min
, uint64_t max
)
3255 struct drm_property
*property
;
3257 flags
|= DRM_MODE_PROP_RANGE
;
3259 property
= drm_property_create(dev
, flags
, name
, 2);
3263 property
->values
[0] = min
;
3264 property
->values
[1] = max
;
3268 EXPORT_SYMBOL(drm_property_create_range
);
3271 * drm_property_add_enum - add a possible value to an enumeration property
3272 * @property: enumeration property to change
3273 * @index: index of the new enumeration
3274 * @value: value of the new enumeration
3275 * @name: symbolic name of the new enumeration
3277 * This functions adds enumerations to a property.
3279 * It's use is deprecated, drivers should use one of the more specific helpers
3280 * to directly create the property with all enumerations already attached.
3283 * Zero on success, error code on failure.
3285 int drm_property_add_enum(struct drm_property
*property
, int index
,
3286 uint64_t value
, const char *name
)
3288 struct drm_property_enum
*prop_enum
;
3290 if (!(property
->flags
& (DRM_MODE_PROP_ENUM
| DRM_MODE_PROP_BITMASK
)))
3294 * Bitmask enum properties have the additional constraint of values
3297 if ((property
->flags
& DRM_MODE_PROP_BITMASK
) && (value
> 63))
3300 if (!list_empty(&property
->enum_blob_list
)) {
3301 list_for_each_entry(prop_enum
, &property
->enum_blob_list
, head
) {
3302 if (prop_enum
->value
== value
) {
3303 strncpy(prop_enum
->name
, name
, DRM_PROP_NAME_LEN
);
3304 prop_enum
->name
[DRM_PROP_NAME_LEN
-1] = '\0';
3310 prop_enum
= kzalloc(sizeof(struct drm_property_enum
), GFP_KERNEL
);
3314 strncpy(prop_enum
->name
, name
, DRM_PROP_NAME_LEN
);
3315 prop_enum
->name
[DRM_PROP_NAME_LEN
-1] = '\0';
3316 prop_enum
->value
= value
;
3318 property
->values
[index
] = value
;
3319 list_add_tail(&prop_enum
->head
, &property
->enum_blob_list
);
3322 EXPORT_SYMBOL(drm_property_add_enum
);
3325 * drm_property_destroy - destroy a drm property
3327 * @property: property to destry
3329 * This function frees a property including any attached resources like
3330 * enumeration values.
3332 void drm_property_destroy(struct drm_device
*dev
, struct drm_property
*property
)
3334 struct drm_property_enum
*prop_enum
, *pt
;
3336 list_for_each_entry_safe(prop_enum
, pt
, &property
->enum_blob_list
, head
) {
3337 list_del(&prop_enum
->head
);
3341 if (property
->num_values
)
3342 kfree(property
->values
);
3343 drm_mode_object_put(dev
, &property
->base
);
3344 list_del(&property
->head
);
3347 EXPORT_SYMBOL(drm_property_destroy
);
3350 * drm_object_attach_property - attach a property to a modeset object
3351 * @obj: drm modeset object
3352 * @property: property to attach
3353 * @init_val: initial value of the property
3355 * This attaches the given property to the modeset object with the given initial
3356 * value. Currently this function cannot fail since the properties are stored in
3357 * a statically sized array.
3359 void drm_object_attach_property(struct drm_mode_object
*obj
,
3360 struct drm_property
*property
,
3363 int count
= obj
->properties
->count
;
3365 if (count
== DRM_OBJECT_MAX_PROPERTY
) {
3366 WARN(1, "Failed to attach object property (type: 0x%x). Please "
3367 "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time "
3368 "you see this message on the same object type.\n",
3373 obj
->properties
->ids
[count
] = property
->base
.id
;
3374 obj
->properties
->values
[count
] = init_val
;
3375 obj
->properties
->count
++;
3377 EXPORT_SYMBOL(drm_object_attach_property
);
3380 * drm_object_property_set_value - set the value of a property
3381 * @obj: drm mode object to set property value for
3382 * @property: property to set
3383 * @val: value the property should be set to
3385 * This functions sets a given property on a given object. This function only
3386 * changes the software state of the property, it does not call into the
3387 * driver's ->set_property callback.
3390 * Zero on success, error code on failure.
3392 int drm_object_property_set_value(struct drm_mode_object
*obj
,
3393 struct drm_property
*property
, uint64_t val
)
3397 for (i
= 0; i
< obj
->properties
->count
; i
++) {
3398 if (obj
->properties
->ids
[i
] == property
->base
.id
) {
3399 obj
->properties
->values
[i
] = val
;
3406 EXPORT_SYMBOL(drm_object_property_set_value
);
3409 * drm_object_property_get_value - retrieve the value of a property
3410 * @obj: drm mode object to get property value from
3411 * @property: property to retrieve
3412 * @val: storage for the property value
3414 * This function retrieves the softare state of the given property for the given
3415 * property. Since there is no driver callback to retrieve the current property
3416 * value this might be out of sync with the hardware, depending upon the driver
3420 * Zero on success, error code on failure.
3422 int drm_object_property_get_value(struct drm_mode_object
*obj
,
3423 struct drm_property
*property
, uint64_t *val
)
3427 for (i
= 0; i
< obj
->properties
->count
; i
++) {
3428 if (obj
->properties
->ids
[i
] == property
->base
.id
) {
3429 *val
= obj
->properties
->values
[i
];
3436 EXPORT_SYMBOL(drm_object_property_get_value
);
3439 * drm_mode_getproperty_ioctl - get the current value of a connector's property
3442 * @file_priv: DRM file info
3444 * This function retrieves the current value for an connectors's property.
3446 * Called by the user via ioctl.
3449 * Zero on success, errno on failure.
3451 int drm_mode_getproperty_ioctl(struct drm_device
*dev
,
3452 void *data
, struct drm_file
*file_priv
)
3454 struct drm_mode_object
*obj
;
3455 struct drm_mode_get_property
*out_resp
= data
;
3456 struct drm_property
*property
;
3459 int value_count
= 0;
3462 struct drm_property_enum
*prop_enum
;
3463 struct drm_mode_property_enum __user
*enum_ptr
;
3464 struct drm_property_blob
*prop_blob
;
3465 uint32_t __user
*blob_id_ptr
;
3466 uint64_t __user
*values_ptr
;
3467 uint32_t __user
*blob_length_ptr
;
3469 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
3472 drm_modeset_lock_all(dev
);
3473 obj
= drm_mode_object_find(dev
, out_resp
->prop_id
, DRM_MODE_OBJECT_PROPERTY
);
3478 property
= obj_to_property(obj
);
3480 if (property
->flags
& (DRM_MODE_PROP_ENUM
| DRM_MODE_PROP_BITMASK
)) {
3481 list_for_each_entry(prop_enum
, &property
->enum_blob_list
, head
)
3483 } else if (property
->flags
& DRM_MODE_PROP_BLOB
) {
3484 list_for_each_entry(prop_blob
, &property
->enum_blob_list
, head
)
3488 value_count
= property
->num_values
;
3490 strncpy(out_resp
->name
, property
->name
, DRM_PROP_NAME_LEN
);
3491 out_resp
->name
[DRM_PROP_NAME_LEN
-1] = 0;
3492 out_resp
->flags
= property
->flags
;
3494 if ((out_resp
->count_values
>= value_count
) && value_count
) {
3495 values_ptr
= (uint64_t __user
*)(unsigned long)out_resp
->values_ptr
;
3496 for (i
= 0; i
< value_count
; i
++) {
3497 if (copy_to_user(values_ptr
+ i
, &property
->values
[i
], sizeof(uint64_t))) {
3503 out_resp
->count_values
= value_count
;
3505 if (property
->flags
& (DRM_MODE_PROP_ENUM
| DRM_MODE_PROP_BITMASK
)) {
3506 if ((out_resp
->count_enum_blobs
>= enum_count
) && enum_count
) {
3508 enum_ptr
= (struct drm_mode_property_enum __user
*)(unsigned long)out_resp
->enum_blob_ptr
;
3509 list_for_each_entry(prop_enum
, &property
->enum_blob_list
, head
) {
3511 if (copy_to_user(&enum_ptr
[copied
].value
, &prop_enum
->value
, sizeof(uint64_t))) {
3516 if (copy_to_user(&enum_ptr
[copied
].name
,
3517 &prop_enum
->name
, DRM_PROP_NAME_LEN
)) {
3524 out_resp
->count_enum_blobs
= enum_count
;
3527 if (property
->flags
& DRM_MODE_PROP_BLOB
) {
3528 if ((out_resp
->count_enum_blobs
>= blob_count
) && blob_count
) {
3530 blob_id_ptr
= (uint32_t __user
*)(unsigned long)out_resp
->enum_blob_ptr
;
3531 blob_length_ptr
= (uint32_t __user
*)(unsigned long)out_resp
->values_ptr
;
3533 list_for_each_entry(prop_blob
, &property
->enum_blob_list
, head
) {
3534 if (put_user(prop_blob
->base
.id
, blob_id_ptr
+ copied
)) {
3539 if (put_user(prop_blob
->length
, blob_length_ptr
+ copied
)) {
3547 out_resp
->count_enum_blobs
= blob_count
;
3550 drm_modeset_unlock_all(dev
);
3554 static struct drm_property_blob
*drm_property_create_blob(struct drm_device
*dev
, int length
,
3557 struct drm_property_blob
*blob
;
3560 if (!length
|| !data
)
3563 blob
= kzalloc(sizeof(struct drm_property_blob
)+length
, GFP_KERNEL
);
3567 ret
= drm_mode_object_get(dev
, &blob
->base
, DRM_MODE_OBJECT_BLOB
);
3573 blob
->length
= length
;
3575 memcpy(blob
->data
, data
, length
);
3577 list_add_tail(&blob
->head
, &dev
->mode_config
.property_blob_list
);
3581 static void drm_property_destroy_blob(struct drm_device
*dev
,
3582 struct drm_property_blob
*blob
)
3584 drm_mode_object_put(dev
, &blob
->base
);
3585 list_del(&blob
->head
);
3590 * drm_mode_getblob_ioctl - get the contents of a blob property value
3593 * @file_priv: DRM file info
3595 * This function retrieves the contents of a blob property. The value stored in
3596 * an object's blob property is just a normal modeset object id.
3598 * Called by the user via ioctl.
3601 * Zero on success, errno on failure.
3603 int drm_mode_getblob_ioctl(struct drm_device
*dev
,
3604 void *data
, struct drm_file
*file_priv
)
3606 struct drm_mode_object
*obj
;
3607 struct drm_mode_get_blob
*out_resp
= data
;
3608 struct drm_property_blob
*blob
;
3610 void __user
*blob_ptr
;
3612 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
3615 drm_modeset_lock_all(dev
);
3616 obj
= drm_mode_object_find(dev
, out_resp
->blob_id
, DRM_MODE_OBJECT_BLOB
);
3621 blob
= obj_to_blob(obj
);
3623 if (out_resp
->length
== blob
->length
) {
3624 blob_ptr
= (void __user
*)(unsigned long)out_resp
->data
;
3625 if (copy_to_user(blob_ptr
, blob
->data
, blob
->length
)){
3630 out_resp
->length
= blob
->length
;
3633 drm_modeset_unlock_all(dev
);
3638 * drm_mode_connector_update_edid_property - update the edid property of a connector
3639 * @connector: drm connector
3640 * @edid: new value of the edid property
3642 * This function creates a new blob modeset object and assigns its id to the
3643 * connector's edid property.
3646 * Zero on success, errno on failure.
3648 int drm_mode_connector_update_edid_property(struct drm_connector
*connector
,
3651 struct drm_device
*dev
= connector
->dev
;
3654 if (connector
->edid_blob_ptr
)
3655 drm_property_destroy_blob(dev
, connector
->edid_blob_ptr
);
3657 /* Delete edid, when there is none. */
3659 connector
->edid_blob_ptr
= NULL
;
3660 ret
= drm_object_property_set_value(&connector
->base
, dev
->mode_config
.edid_property
, 0);
3664 size
= EDID_LENGTH
* (1 + edid
->extensions
);
3665 connector
->edid_blob_ptr
= drm_property_create_blob(connector
->dev
,
3667 if (!connector
->edid_blob_ptr
)
3670 ret
= drm_object_property_set_value(&connector
->base
,
3671 dev
->mode_config
.edid_property
,
3672 connector
->edid_blob_ptr
->base
.id
);
3676 EXPORT_SYMBOL(drm_mode_connector_update_edid_property
);
3678 static bool drm_property_change_is_valid(struct drm_property
*property
,
3681 if (property
->flags
& DRM_MODE_PROP_IMMUTABLE
)
3683 if (property
->flags
& DRM_MODE_PROP_RANGE
) {
3684 if (value
< property
->values
[0] || value
> property
->values
[1])
3687 } else if (property
->flags
& DRM_MODE_PROP_BITMASK
) {
3689 uint64_t valid_mask
= 0;
3690 for (i
= 0; i
< property
->num_values
; i
++)
3691 valid_mask
|= (1ULL << property
->values
[i
]);
3692 return !(value
& ~valid_mask
);
3693 } else if (property
->flags
& DRM_MODE_PROP_BLOB
) {
3694 /* Only the driver knows */
3698 for (i
= 0; i
< property
->num_values
; i
++)
3699 if (property
->values
[i
] == value
)
3706 * drm_mode_connector_property_set_ioctl - set the current value of a connector property
3709 * @file_priv: DRM file info
3711 * This function sets the current value for a connectors's property. It also
3712 * calls into a driver's ->set_property callback to update the hardware state
3714 * Called by the user via ioctl.
3717 * Zero on success, errno on failure.
3719 int drm_mode_connector_property_set_ioctl(struct drm_device
*dev
,
3720 void *data
, struct drm_file
*file_priv
)
3722 struct drm_mode_connector_set_property
*conn_set_prop
= data
;
3723 struct drm_mode_obj_set_property obj_set_prop
= {
3724 .value
= conn_set_prop
->value
,
3725 .prop_id
= conn_set_prop
->prop_id
,
3726 .obj_id
= conn_set_prop
->connector_id
,
3727 .obj_type
= DRM_MODE_OBJECT_CONNECTOR
3730 /* It does all the locking and checking we need */
3731 return drm_mode_obj_set_property_ioctl(dev
, &obj_set_prop
, file_priv
);
3734 static int drm_mode_connector_set_obj_prop(struct drm_mode_object
*obj
,
3735 struct drm_property
*property
,
3739 struct drm_connector
*connector
= obj_to_connector(obj
);
3741 /* Do DPMS ourselves */
3742 if (property
== connector
->dev
->mode_config
.dpms_property
) {
3743 if (connector
->funcs
->dpms
)
3744 (*connector
->funcs
->dpms
)(connector
, (int)value
);
3746 } else if (connector
->funcs
->set_property
)
3747 ret
= connector
->funcs
->set_property(connector
, property
, value
);
3749 /* store the property value if successful */
3751 drm_object_property_set_value(&connector
->base
, property
, value
);
3755 static int drm_mode_crtc_set_obj_prop(struct drm_mode_object
*obj
,
3756 struct drm_property
*property
,
3760 struct drm_crtc
*crtc
= obj_to_crtc(obj
);
3762 if (crtc
->funcs
->set_property
)
3763 ret
= crtc
->funcs
->set_property(crtc
, property
, value
);
3765 drm_object_property_set_value(obj
, property
, value
);
3770 static int drm_mode_plane_set_obj_prop(struct drm_mode_object
*obj
,
3771 struct drm_property
*property
,
3775 struct drm_plane
*plane
= obj_to_plane(obj
);
3777 if (plane
->funcs
->set_property
)
3778 ret
= plane
->funcs
->set_property(plane
, property
, value
);
3780 drm_object_property_set_value(obj
, property
, value
);
3786 * drm_mode_getproperty_ioctl - get the current value of a object's property
3789 * @file_priv: DRM file info
3791 * This function retrieves the current value for an object's property. Compared
3792 * to the connector specific ioctl this one is extended to also work on crtc and
3795 * Called by the user via ioctl.
3798 * Zero on success, errno on failure.
3800 int drm_mode_obj_get_properties_ioctl(struct drm_device
*dev
, void *data
,
3801 struct drm_file
*file_priv
)
3803 struct drm_mode_obj_get_properties
*arg
= data
;
3804 struct drm_mode_object
*obj
;
3808 int props_count
= 0;
3809 uint32_t __user
*props_ptr
;
3810 uint64_t __user
*prop_values_ptr
;
3812 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
3815 drm_modeset_lock_all(dev
);
3817 obj
= drm_mode_object_find(dev
, arg
->obj_id
, arg
->obj_type
);
3822 if (!obj
->properties
) {
3827 props_count
= obj
->properties
->count
;
3829 /* This ioctl is called twice, once to determine how much space is
3830 * needed, and the 2nd time to fill it. */
3831 if ((arg
->count_props
>= props_count
) && props_count
) {
3833 props_ptr
= (uint32_t __user
*)(unsigned long)(arg
->props_ptr
);
3834 prop_values_ptr
= (uint64_t __user
*)(unsigned long)
3835 (arg
->prop_values_ptr
);
3836 for (i
= 0; i
< props_count
; i
++) {
3837 if (put_user(obj
->properties
->ids
[i
],
3838 props_ptr
+ copied
)) {
3842 if (put_user(obj
->properties
->values
[i
],
3843 prop_values_ptr
+ copied
)) {
3850 arg
->count_props
= props_count
;
3852 drm_modeset_unlock_all(dev
);
3857 * drm_mode_obj_set_property_ioctl - set the current value of an object's property
3860 * @file_priv: DRM file info
3862 * This function sets the current value for an object's property. It also calls
3863 * into a driver's ->set_property callback to update the hardware state.
3864 * Compared to the connector specific ioctl this one is extended to also work on
3865 * crtc and plane objects.
3867 * Called by the user via ioctl.
3870 * Zero on success, errno on failure.
3872 int drm_mode_obj_set_property_ioctl(struct drm_device
*dev
, void *data
,
3873 struct drm_file
*file_priv
)
3875 struct drm_mode_obj_set_property
*arg
= data
;
3876 struct drm_mode_object
*arg_obj
;
3877 struct drm_mode_object
*prop_obj
;
3878 struct drm_property
*property
;
3882 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
3885 drm_modeset_lock_all(dev
);
3887 arg_obj
= drm_mode_object_find(dev
, arg
->obj_id
, arg
->obj_type
);
3892 if (!arg_obj
->properties
)
3895 for (i
= 0; i
< arg_obj
->properties
->count
; i
++)
3896 if (arg_obj
->properties
->ids
[i
] == arg
->prop_id
)
3899 if (i
== arg_obj
->properties
->count
)
3902 prop_obj
= drm_mode_object_find(dev
, arg
->prop_id
,
3903 DRM_MODE_OBJECT_PROPERTY
);
3908 property
= obj_to_property(prop_obj
);
3910 if (!drm_property_change_is_valid(property
, arg
->value
))
3913 switch (arg_obj
->type
) {
3914 case DRM_MODE_OBJECT_CONNECTOR
:
3915 ret
= drm_mode_connector_set_obj_prop(arg_obj
, property
,
3918 case DRM_MODE_OBJECT_CRTC
:
3919 ret
= drm_mode_crtc_set_obj_prop(arg_obj
, property
, arg
->value
);
3921 case DRM_MODE_OBJECT_PLANE
:
3922 ret
= drm_mode_plane_set_obj_prop(arg_obj
, property
, arg
->value
);
3927 drm_modeset_unlock_all(dev
);
3932 * drm_mode_connector_attach_encoder - attach a connector to an encoder
3933 * @connector: connector to attach
3934 * @encoder: encoder to attach @connector to
3936 * This function links up a connector to an encoder. Note that the routing
3937 * restrictions between encoders and crtcs are exposed to userspace through the
3938 * possible_clones and possible_crtcs bitmasks.
3941 * Zero on success, errno on failure.
3943 int drm_mode_connector_attach_encoder(struct drm_connector
*connector
,
3944 struct drm_encoder
*encoder
)
3948 for (i
= 0; i
< DRM_CONNECTOR_MAX_ENCODER
; i
++) {
3949 if (connector
->encoder_ids
[i
] == 0) {
3950 connector
->encoder_ids
[i
] = encoder
->base
.id
;
3956 EXPORT_SYMBOL(drm_mode_connector_attach_encoder
);
3959 * drm_mode_crtc_set_gamma_size - set the gamma table size
3960 * @crtc: CRTC to set the gamma table size for
3961 * @gamma_size: size of the gamma table
3963 * Drivers which support gamma tables should set this to the supported gamma
3964 * table size when initializing the CRTC. Currently the drm core only supports a
3965 * fixed gamma table size.
3968 * Zero on success, errno on failure.
3970 int drm_mode_crtc_set_gamma_size(struct drm_crtc
*crtc
,
3973 crtc
->gamma_size
= gamma_size
;
3975 crtc
->gamma_store
= kzalloc(gamma_size
* sizeof(uint16_t) * 3, GFP_KERNEL
);
3976 if (!crtc
->gamma_store
) {
3977 crtc
->gamma_size
= 0;
3983 EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size
);
3986 * drm_mode_gamma_set_ioctl - set the gamma table
3989 * @file_priv: DRM file info
3991 * Set the gamma table of a CRTC to the one passed in by the user. Userspace can
3992 * inquire the required gamma table size through drm_mode_gamma_get_ioctl.
3994 * Called by the user via ioctl.
3997 * Zero on success, errno on failure.
3999 int drm_mode_gamma_set_ioctl(struct drm_device
*dev
,
4000 void *data
, struct drm_file
*file_priv
)
4002 struct drm_mode_crtc_lut
*crtc_lut
= data
;
4003 struct drm_mode_object
*obj
;
4004 struct drm_crtc
*crtc
;
4005 void *r_base
, *g_base
, *b_base
;
4009 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
4012 drm_modeset_lock_all(dev
);
4013 obj
= drm_mode_object_find(dev
, crtc_lut
->crtc_id
, DRM_MODE_OBJECT_CRTC
);
4018 crtc
= obj_to_crtc(obj
);
4020 if (crtc
->funcs
->gamma_set
== NULL
) {
4025 /* memcpy into gamma store */
4026 if (crtc_lut
->gamma_size
!= crtc
->gamma_size
) {
4031 size
= crtc_lut
->gamma_size
* (sizeof(uint16_t));
4032 r_base
= crtc
->gamma_store
;
4033 if (copy_from_user(r_base
, (void __user
*)(unsigned long)crtc_lut
->red
, size
)) {
4038 g_base
= r_base
+ size
;
4039 if (copy_from_user(g_base
, (void __user
*)(unsigned long)crtc_lut
->green
, size
)) {
4044 b_base
= g_base
+ size
;
4045 if (copy_from_user(b_base
, (void __user
*)(unsigned long)crtc_lut
->blue
, size
)) {
4050 crtc
->funcs
->gamma_set(crtc
, r_base
, g_base
, b_base
, 0, crtc
->gamma_size
);
4053 drm_modeset_unlock_all(dev
);
4059 * drm_mode_gamma_get_ioctl - get the gamma table
4062 * @file_priv: DRM file info
4064 * Copy the current gamma table into the storage provided. This also provides
4065 * the gamma table size the driver expects, which can be used to size the
4066 * allocated storage.
4068 * Called by the user via ioctl.
4071 * Zero on success, errno on failure.
4073 int drm_mode_gamma_get_ioctl(struct drm_device
*dev
,
4074 void *data
, struct drm_file
*file_priv
)
4076 struct drm_mode_crtc_lut
*crtc_lut
= data
;
4077 struct drm_mode_object
*obj
;
4078 struct drm_crtc
*crtc
;
4079 void *r_base
, *g_base
, *b_base
;
4083 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
4086 drm_modeset_lock_all(dev
);
4087 obj
= drm_mode_object_find(dev
, crtc_lut
->crtc_id
, DRM_MODE_OBJECT_CRTC
);
4092 crtc
= obj_to_crtc(obj
);
4094 /* memcpy into gamma store */
4095 if (crtc_lut
->gamma_size
!= crtc
->gamma_size
) {
4100 size
= crtc_lut
->gamma_size
* (sizeof(uint16_t));
4101 r_base
= crtc
->gamma_store
;
4102 if (copy_to_user((void __user
*)(unsigned long)crtc_lut
->red
, r_base
, size
)) {
4107 g_base
= r_base
+ size
;
4108 if (copy_to_user((void __user
*)(unsigned long)crtc_lut
->green
, g_base
, size
)) {
4113 b_base
= g_base
+ size
;
4114 if (copy_to_user((void __user
*)(unsigned long)crtc_lut
->blue
, b_base
, size
)) {
4119 drm_modeset_unlock_all(dev
);
4124 * drm_mode_page_flip_ioctl - schedule an asynchronous fb update
4127 * @file_priv: DRM file info
4129 * This schedules an asynchronous update on a given CRTC, called page flip.
4130 * Optionally a drm event is generated to signal the completion of the event.
4131 * Generic drivers cannot assume that a pageflip with changed framebuffer
4132 * properties (including driver specific metadata like tiling layout) will work,
4133 * but some drivers support e.g. pixel format changes through the pageflip
4136 * Called by the user via ioctl.
4139 * Zero on success, errno on failure.
4141 int drm_mode_page_flip_ioctl(struct drm_device
*dev
,
4142 void *data
, struct drm_file
*file_priv
)
4144 struct drm_mode_crtc_page_flip
*page_flip
= data
;
4145 struct drm_mode_object
*obj
;
4146 struct drm_crtc
*crtc
;
4147 struct drm_framebuffer
*fb
= NULL
, *old_fb
= NULL
;
4148 struct drm_pending_vblank_event
*e
= NULL
;
4149 unsigned long flags
;
4152 if (page_flip
->flags
& ~DRM_MODE_PAGE_FLIP_FLAGS
||
4153 page_flip
->reserved
!= 0)
4156 if ((page_flip
->flags
& DRM_MODE_PAGE_FLIP_ASYNC
) && !dev
->mode_config
.async_page_flip
)
4159 obj
= drm_mode_object_find(dev
, page_flip
->crtc_id
, DRM_MODE_OBJECT_CRTC
);
4162 crtc
= obj_to_crtc(obj
);
4164 mutex_lock(&crtc
->mutex
);
4165 if (crtc
->primary
->fb
== NULL
) {
4166 /* The framebuffer is currently unbound, presumably
4167 * due to a hotplug event, that userspace has not
4174 if (crtc
->funcs
->page_flip
== NULL
)
4177 fb
= drm_framebuffer_lookup(dev
, page_flip
->fb_id
);
4183 ret
= drm_crtc_check_viewport(crtc
, crtc
->x
, crtc
->y
, &crtc
->mode
, fb
);
4187 if (crtc
->primary
->fb
->pixel_format
!= fb
->pixel_format
) {
4188 DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n");
4193 if (page_flip
->flags
& DRM_MODE_PAGE_FLIP_EVENT
) {
4195 spin_lock_irqsave(&dev
->event_lock
, flags
);
4196 if (file_priv
->event_space
< sizeof e
->event
) {
4197 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
4200 file_priv
->event_space
-= sizeof e
->event
;
4201 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
4203 e
= kzalloc(sizeof *e
, GFP_KERNEL
);
4205 spin_lock_irqsave(&dev
->event_lock
, flags
);
4206 file_priv
->event_space
+= sizeof e
->event
;
4207 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
4211 e
->event
.base
.type
= DRM_EVENT_FLIP_COMPLETE
;
4212 e
->event
.base
.length
= sizeof e
->event
;
4213 e
->event
.user_data
= page_flip
->user_data
;
4214 e
->base
.event
= &e
->event
.base
;
4215 e
->base
.file_priv
= file_priv
;
4217 (void (*) (struct drm_pending_event
*)) kfree
;
4220 old_fb
= crtc
->primary
->fb
;
4221 ret
= crtc
->funcs
->page_flip(crtc
, fb
, e
, page_flip
->flags
);
4223 if (page_flip
->flags
& DRM_MODE_PAGE_FLIP_EVENT
) {
4224 spin_lock_irqsave(&dev
->event_lock
, flags
);
4225 file_priv
->event_space
+= sizeof e
->event
;
4226 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
4229 /* Keep the old fb, don't unref it. */
4233 * Warn if the driver hasn't properly updated the crtc->fb
4234 * field to reflect that the new framebuffer is now used.
4235 * Failing to do so will screw with the reference counting
4238 WARN_ON(crtc
->primary
->fb
!= fb
);
4239 /* Unref only the old framebuffer. */
4245 drm_framebuffer_unreference(fb
);
4247 drm_framebuffer_unreference(old_fb
);
4248 mutex_unlock(&crtc
->mutex
);
4254 * drm_mode_config_reset - call ->reset callbacks
4257 * This functions calls all the crtc's, encoder's and connector's ->reset
4258 * callback. Drivers can use this in e.g. their driver load or resume code to
4259 * reset hardware and software state.
4261 void drm_mode_config_reset(struct drm_device
*dev
)
4263 struct drm_crtc
*crtc
;
4264 struct drm_encoder
*encoder
;
4265 struct drm_connector
*connector
;
4267 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
)
4268 if (crtc
->funcs
->reset
)
4269 crtc
->funcs
->reset(crtc
);
4271 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
)
4272 if (encoder
->funcs
->reset
)
4273 encoder
->funcs
->reset(encoder
);
4275 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
4276 connector
->status
= connector_status_unknown
;
4278 if (connector
->funcs
->reset
)
4279 connector
->funcs
->reset(connector
);
4282 EXPORT_SYMBOL(drm_mode_config_reset
);
4285 * drm_mode_create_dumb_ioctl - create a dumb backing storage buffer
4288 * @file_priv: DRM file info
4290 * This creates a new dumb buffer in the driver's backing storage manager (GEM,
4291 * TTM or something else entirely) and returns the resulting buffer handle. This
4292 * handle can then be wrapped up into a framebuffer modeset object.
4294 * Note that userspace is not allowed to use such objects for render
4295 * acceleration - drivers must create their own private ioctls for such a use
4298 * Called by the user via ioctl.
4301 * Zero on success, errno on failure.
4303 int drm_mode_create_dumb_ioctl(struct drm_device
*dev
,
4304 void *data
, struct drm_file
*file_priv
)
4306 struct drm_mode_create_dumb
*args
= data
;
4307 u32 cpp
, stride
, size
;
4309 if (!dev
->driver
->dumb_create
)
4311 if (!args
->width
|| !args
->height
|| !args
->bpp
)
4314 /* overflow checks for 32bit size calculations */
4315 cpp
= DIV_ROUND_UP(args
->bpp
, 8);
4316 if (cpp
> 0xffffffffU
/ args
->width
)
4318 stride
= cpp
* args
->width
;
4319 if (args
->height
> 0xffffffffU
/ stride
)
4322 /* test for wrap-around */
4323 size
= args
->height
* stride
;
4324 if (PAGE_ALIGN(size
) == 0)
4327 return dev
->driver
->dumb_create(file_priv
, dev
, args
);
4331 * drm_mode_mmap_dumb_ioctl - create an mmap offset for a dumb backing storage buffer
4334 * @file_priv: DRM file info
4336 * Allocate an offset in the drm device node's address space to be able to
4337 * memory map a dumb buffer.
4339 * Called by the user via ioctl.
4342 * Zero on success, errno on failure.
4344 int drm_mode_mmap_dumb_ioctl(struct drm_device
*dev
,
4345 void *data
, struct drm_file
*file_priv
)
4347 struct drm_mode_map_dumb
*args
= data
;
4349 /* call driver ioctl to get mmap offset */
4350 if (!dev
->driver
->dumb_map_offset
)
4353 return dev
->driver
->dumb_map_offset(file_priv
, dev
, args
->handle
, &args
->offset
);
4357 * drm_mode_destroy_dumb_ioctl - destroy a dumb backing strage buffer
4360 * @file_priv: DRM file info
4362 * This destroys the userspace handle for the given dumb backing storage buffer.
4363 * Since buffer objects must be reference counted in the kernel a buffer object
4364 * won't be immediately freed if a framebuffer modeset object still uses it.
4366 * Called by the user via ioctl.
4369 * Zero on success, errno on failure.
4371 int drm_mode_destroy_dumb_ioctl(struct drm_device
*dev
,
4372 void *data
, struct drm_file
*file_priv
)
4374 struct drm_mode_destroy_dumb
*args
= data
;
4376 if (!dev
->driver
->dumb_destroy
)
4379 return dev
->driver
->dumb_destroy(file_priv
, dev
, args
->handle
);
4383 * drm_fb_get_bpp_depth - get the bpp/depth values for format
4384 * @format: pixel format (DRM_FORMAT_*)
4385 * @depth: storage for the depth value
4386 * @bpp: storage for the bpp value
4388 * This only supports RGB formats here for compat with code that doesn't use
4389 * pixel formats directly yet.
4391 void drm_fb_get_bpp_depth(uint32_t format
, unsigned int *depth
,
4396 case DRM_FORMAT_RGB332
:
4397 case DRM_FORMAT_BGR233
:
4401 case DRM_FORMAT_XRGB1555
:
4402 case DRM_FORMAT_XBGR1555
:
4403 case DRM_FORMAT_RGBX5551
:
4404 case DRM_FORMAT_BGRX5551
:
4405 case DRM_FORMAT_ARGB1555
:
4406 case DRM_FORMAT_ABGR1555
:
4407 case DRM_FORMAT_RGBA5551
:
4408 case DRM_FORMAT_BGRA5551
:
4412 case DRM_FORMAT_RGB565
:
4413 case DRM_FORMAT_BGR565
:
4417 case DRM_FORMAT_RGB888
:
4418 case DRM_FORMAT_BGR888
:
4422 case DRM_FORMAT_XRGB8888
:
4423 case DRM_FORMAT_XBGR8888
:
4424 case DRM_FORMAT_RGBX8888
:
4425 case DRM_FORMAT_BGRX8888
:
4429 case DRM_FORMAT_XRGB2101010
:
4430 case DRM_FORMAT_XBGR2101010
:
4431 case DRM_FORMAT_RGBX1010102
:
4432 case DRM_FORMAT_BGRX1010102
:
4433 case DRM_FORMAT_ARGB2101010
:
4434 case DRM_FORMAT_ABGR2101010
:
4435 case DRM_FORMAT_RGBA1010102
:
4436 case DRM_FORMAT_BGRA1010102
:
4440 case DRM_FORMAT_ARGB8888
:
4441 case DRM_FORMAT_ABGR8888
:
4442 case DRM_FORMAT_RGBA8888
:
4443 case DRM_FORMAT_BGRA8888
:
4448 DRM_DEBUG_KMS("unsupported pixel format %s\n",
4449 drm_get_format_name(format
));
4455 EXPORT_SYMBOL(drm_fb_get_bpp_depth
);
4458 * drm_format_num_planes - get the number of planes for format
4459 * @format: pixel format (DRM_FORMAT_*)
4462 * The number of planes used by the specified pixel format.
4464 int drm_format_num_planes(uint32_t format
)
4467 case DRM_FORMAT_YUV410
:
4468 case DRM_FORMAT_YVU410
:
4469 case DRM_FORMAT_YUV411
:
4470 case DRM_FORMAT_YVU411
:
4471 case DRM_FORMAT_YUV420
:
4472 case DRM_FORMAT_YVU420
:
4473 case DRM_FORMAT_YUV422
:
4474 case DRM_FORMAT_YVU422
:
4475 case DRM_FORMAT_YUV444
:
4476 case DRM_FORMAT_YVU444
:
4478 case DRM_FORMAT_NV12
:
4479 case DRM_FORMAT_NV21
:
4480 case DRM_FORMAT_NV16
:
4481 case DRM_FORMAT_NV61
:
4482 case DRM_FORMAT_NV24
:
4483 case DRM_FORMAT_NV42
:
4489 EXPORT_SYMBOL(drm_format_num_planes
);
4492 * drm_format_plane_cpp - determine the bytes per pixel value
4493 * @format: pixel format (DRM_FORMAT_*)
4494 * @plane: plane index
4497 * The bytes per pixel value for the specified plane.
4499 int drm_format_plane_cpp(uint32_t format
, int plane
)
4504 if (plane
>= drm_format_num_planes(format
))
4508 case DRM_FORMAT_YUYV
:
4509 case DRM_FORMAT_YVYU
:
4510 case DRM_FORMAT_UYVY
:
4511 case DRM_FORMAT_VYUY
:
4513 case DRM_FORMAT_NV12
:
4514 case DRM_FORMAT_NV21
:
4515 case DRM_FORMAT_NV16
:
4516 case DRM_FORMAT_NV61
:
4517 case DRM_FORMAT_NV24
:
4518 case DRM_FORMAT_NV42
:
4519 return plane
? 2 : 1;
4520 case DRM_FORMAT_YUV410
:
4521 case DRM_FORMAT_YVU410
:
4522 case DRM_FORMAT_YUV411
:
4523 case DRM_FORMAT_YVU411
:
4524 case DRM_FORMAT_YUV420
:
4525 case DRM_FORMAT_YVU420
:
4526 case DRM_FORMAT_YUV422
:
4527 case DRM_FORMAT_YVU422
:
4528 case DRM_FORMAT_YUV444
:
4529 case DRM_FORMAT_YVU444
:
4532 drm_fb_get_bpp_depth(format
, &depth
, &bpp
);
4536 EXPORT_SYMBOL(drm_format_plane_cpp
);
4539 * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor
4540 * @format: pixel format (DRM_FORMAT_*)
4543 * The horizontal chroma subsampling factor for the
4544 * specified pixel format.
4546 int drm_format_horz_chroma_subsampling(uint32_t format
)
4549 case DRM_FORMAT_YUV411
:
4550 case DRM_FORMAT_YVU411
:
4551 case DRM_FORMAT_YUV410
:
4552 case DRM_FORMAT_YVU410
:
4554 case DRM_FORMAT_YUYV
:
4555 case DRM_FORMAT_YVYU
:
4556 case DRM_FORMAT_UYVY
:
4557 case DRM_FORMAT_VYUY
:
4558 case DRM_FORMAT_NV12
:
4559 case DRM_FORMAT_NV21
:
4560 case DRM_FORMAT_NV16
:
4561 case DRM_FORMAT_NV61
:
4562 case DRM_FORMAT_YUV422
:
4563 case DRM_FORMAT_YVU422
:
4564 case DRM_FORMAT_YUV420
:
4565 case DRM_FORMAT_YVU420
:
4571 EXPORT_SYMBOL(drm_format_horz_chroma_subsampling
);
4574 * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor
4575 * @format: pixel format (DRM_FORMAT_*)
4578 * The vertical chroma subsampling factor for the
4579 * specified pixel format.
4581 int drm_format_vert_chroma_subsampling(uint32_t format
)
4584 case DRM_FORMAT_YUV410
:
4585 case DRM_FORMAT_YVU410
:
4587 case DRM_FORMAT_YUV420
:
4588 case DRM_FORMAT_YVU420
:
4589 case DRM_FORMAT_NV12
:
4590 case DRM_FORMAT_NV21
:
4596 EXPORT_SYMBOL(drm_format_vert_chroma_subsampling
);
4599 * drm_mode_config_init - initialize DRM mode_configuration structure
4602 * Initialize @dev's mode_config structure, used for tracking the graphics
4603 * configuration of @dev.
4605 * Since this initializes the modeset locks, no locking is possible. Which is no
4606 * problem, since this should happen single threaded at init time. It is the
4607 * driver's problem to ensure this guarantee.
4610 void drm_mode_config_init(struct drm_device
*dev
)
4612 mutex_init(&dev
->mode_config
.mutex
);
4613 mutex_init(&dev
->mode_config
.idr_mutex
);
4614 mutex_init(&dev
->mode_config
.fb_lock
);
4615 INIT_LIST_HEAD(&dev
->mode_config
.fb_list
);
4616 INIT_LIST_HEAD(&dev
->mode_config
.crtc_list
);
4617 INIT_LIST_HEAD(&dev
->mode_config
.connector_list
);
4618 INIT_LIST_HEAD(&dev
->mode_config
.bridge_list
);
4619 INIT_LIST_HEAD(&dev
->mode_config
.encoder_list
);
4620 INIT_LIST_HEAD(&dev
->mode_config
.property_list
);
4621 INIT_LIST_HEAD(&dev
->mode_config
.property_blob_list
);
4622 INIT_LIST_HEAD(&dev
->mode_config
.plane_list
);
4623 idr_init(&dev
->mode_config
.crtc_idr
);
4625 drm_modeset_lock_all(dev
);
4626 drm_mode_create_standard_connector_properties(dev
);
4627 drm_mode_create_standard_plane_properties(dev
);
4628 drm_modeset_unlock_all(dev
);
4630 /* Just to be sure */
4631 dev
->mode_config
.num_fb
= 0;
4632 dev
->mode_config
.num_connector
= 0;
4633 dev
->mode_config
.num_crtc
= 0;
4634 dev
->mode_config
.num_encoder
= 0;
4635 dev
->mode_config
.num_overlay_plane
= 0;
4636 dev
->mode_config
.num_total_plane
= 0;
4638 EXPORT_SYMBOL(drm_mode_config_init
);
4641 * drm_mode_config_cleanup - free up DRM mode_config info
4644 * Free up all the connectors and CRTCs associated with this DRM device, then
4645 * free up the framebuffers and associated buffer objects.
4647 * Note that since this /should/ happen single-threaded at driver/device
4648 * teardown time, no locking is required. It's the driver's job to ensure that
4649 * this guarantee actually holds true.
4651 * FIXME: cleanup any dangling user buffer objects too
4653 void drm_mode_config_cleanup(struct drm_device
*dev
)
4655 struct drm_connector
*connector
, *ot
;
4656 struct drm_crtc
*crtc
, *ct
;
4657 struct drm_encoder
*encoder
, *enct
;
4658 struct drm_bridge
*bridge
, *brt
;
4659 struct drm_framebuffer
*fb
, *fbt
;
4660 struct drm_property
*property
, *pt
;
4661 struct drm_property_blob
*blob
, *bt
;
4662 struct drm_plane
*plane
, *plt
;
4664 list_for_each_entry_safe(encoder
, enct
, &dev
->mode_config
.encoder_list
,
4666 encoder
->funcs
->destroy(encoder
);
4669 list_for_each_entry_safe(bridge
, brt
,
4670 &dev
->mode_config
.bridge_list
, head
) {
4671 bridge
->funcs
->destroy(bridge
);
4674 list_for_each_entry_safe(connector
, ot
,
4675 &dev
->mode_config
.connector_list
, head
) {
4676 connector
->funcs
->destroy(connector
);
4679 list_for_each_entry_safe(property
, pt
, &dev
->mode_config
.property_list
,
4681 drm_property_destroy(dev
, property
);
4684 list_for_each_entry_safe(blob
, bt
, &dev
->mode_config
.property_blob_list
,
4686 drm_property_destroy_blob(dev
, blob
);
4690 * Single-threaded teardown context, so it's not required to grab the
4691 * fb_lock to protect against concurrent fb_list access. Contrary, it
4692 * would actually deadlock with the drm_framebuffer_cleanup function.
4694 * Also, if there are any framebuffers left, that's a driver leak now,
4695 * so politely WARN about this.
4697 WARN_ON(!list_empty(&dev
->mode_config
.fb_list
));
4698 list_for_each_entry_safe(fb
, fbt
, &dev
->mode_config
.fb_list
, head
) {
4699 drm_framebuffer_remove(fb
);
4702 list_for_each_entry_safe(plane
, plt
, &dev
->mode_config
.plane_list
,
4704 plane
->funcs
->destroy(plane
);
4707 list_for_each_entry_safe(crtc
, ct
, &dev
->mode_config
.crtc_list
, head
) {
4708 crtc
->funcs
->destroy(crtc
);
4711 idr_destroy(&dev
->mode_config
.crtc_idr
);
4713 EXPORT_SYMBOL(drm_mode_config_cleanup
);