2 * Copyright (C) 2014 Red Hat
3 * Copyright (C) 2014 Intel Corp.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 * OTHER DEALINGS IN THE SOFTWARE.
24 * Rob Clark <robdclark@gmail.com>
25 * Daniel Vetter <daniel.vetter@ffwll.ch>
30 #include <drm/drm_atomic.h>
31 #include <drm/drm_mode.h>
32 #include <drm/drm_plane_helper.h>
33 #include <drm/drm_print.h>
34 #include <linux/sync_file.h>
36 #include "drm_crtc_internal.h"
38 void __drm_crtc_commit_free(struct kref
*kref
)
40 struct drm_crtc_commit
*commit
=
41 container_of(kref
, struct drm_crtc_commit
, ref
);
45 EXPORT_SYMBOL(__drm_crtc_commit_free
);
48 * drm_atomic_state_default_release -
49 * release memory initialized by drm_atomic_state_init
50 * @state: atomic state
52 * Free all the memory allocated by drm_atomic_state_init.
53 * This is useful for drivers that subclass the atomic state.
55 void drm_atomic_state_default_release(struct drm_atomic_state
*state
)
57 kfree(state
->connectors
);
61 EXPORT_SYMBOL(drm_atomic_state_default_release
);
64 * drm_atomic_state_init - init new atomic state
66 * @state: atomic state
68 * Default implementation for filling in a new atomic state.
69 * This is useful for drivers that subclass the atomic state.
72 drm_atomic_state_init(struct drm_device
*dev
, struct drm_atomic_state
*state
)
74 kref_init(&state
->ref
);
76 /* TODO legacy paths should maybe do a better job about
77 * setting this appropriately?
79 state
->allow_modeset
= true;
81 state
->crtcs
= kcalloc(dev
->mode_config
.num_crtc
,
82 sizeof(*state
->crtcs
), GFP_KERNEL
);
85 state
->planes
= kcalloc(dev
->mode_config
.num_total_plane
,
86 sizeof(*state
->planes
), GFP_KERNEL
);
92 DRM_DEBUG_ATOMIC("Allocated atomic state %p\n", state
);
96 drm_atomic_state_default_release(state
);
99 EXPORT_SYMBOL(drm_atomic_state_init
);
102 * drm_atomic_state_alloc - allocate atomic state
105 * This allocates an empty atomic state to track updates.
107 struct drm_atomic_state
*
108 drm_atomic_state_alloc(struct drm_device
*dev
)
110 struct drm_mode_config
*config
= &dev
->mode_config
;
111 struct drm_atomic_state
*state
;
113 if (!config
->funcs
->atomic_state_alloc
) {
114 state
= kzalloc(sizeof(*state
), GFP_KERNEL
);
117 if (drm_atomic_state_init(dev
, state
) < 0) {
124 return config
->funcs
->atomic_state_alloc(dev
);
126 EXPORT_SYMBOL(drm_atomic_state_alloc
);
129 * drm_atomic_state_default_clear - clear base atomic state
130 * @state: atomic state
132 * Default implementation for clearing atomic state.
133 * This is useful for drivers that subclass the atomic state.
135 void drm_atomic_state_default_clear(struct drm_atomic_state
*state
)
137 struct drm_device
*dev
= state
->dev
;
138 struct drm_mode_config
*config
= &dev
->mode_config
;
141 DRM_DEBUG_ATOMIC("Clearing atomic state %p\n", state
);
143 for (i
= 0; i
< state
->num_connector
; i
++) {
144 struct drm_connector
*connector
= state
->connectors
[i
].ptr
;
149 connector
->funcs
->atomic_destroy_state(connector
,
150 state
->connectors
[i
].state
);
151 state
->connectors
[i
].ptr
= NULL
;
152 state
->connectors
[i
].state
= NULL
;
153 drm_connector_unreference(connector
);
156 for (i
= 0; i
< config
->num_crtc
; i
++) {
157 struct drm_crtc
*crtc
= state
->crtcs
[i
].ptr
;
162 crtc
->funcs
->atomic_destroy_state(crtc
,
163 state
->crtcs
[i
].state
);
165 if (state
->crtcs
[i
].commit
) {
166 kfree(state
->crtcs
[i
].commit
->event
);
167 state
->crtcs
[i
].commit
->event
= NULL
;
168 drm_crtc_commit_put(state
->crtcs
[i
].commit
);
171 state
->crtcs
[i
].commit
= NULL
;
172 state
->crtcs
[i
].ptr
= NULL
;
173 state
->crtcs
[i
].state
= NULL
;
176 for (i
= 0; i
< config
->num_total_plane
; i
++) {
177 struct drm_plane
*plane
= state
->planes
[i
].ptr
;
182 plane
->funcs
->atomic_destroy_state(plane
,
183 state
->planes
[i
].state
);
184 state
->planes
[i
].ptr
= NULL
;
185 state
->planes
[i
].state
= NULL
;
188 EXPORT_SYMBOL(drm_atomic_state_default_clear
);
191 * drm_atomic_state_clear - clear state object
192 * @state: atomic state
194 * When the w/w mutex algorithm detects a deadlock we need to back off and drop
195 * all locks. So someone else could sneak in and change the current modeset
196 * configuration. Which means that all the state assembled in @state is no
197 * longer an atomic update to the current state, but to some arbitrary earlier
198 * state. Which could break assumptions the driver's
199 * &drm_mode_config_funcs.atomic_check likely relies on.
201 * Hence we must clear all cached state and completely start over, using this
204 void drm_atomic_state_clear(struct drm_atomic_state
*state
)
206 struct drm_device
*dev
= state
->dev
;
207 struct drm_mode_config
*config
= &dev
->mode_config
;
209 if (config
->funcs
->atomic_state_clear
)
210 config
->funcs
->atomic_state_clear(state
);
212 drm_atomic_state_default_clear(state
);
214 EXPORT_SYMBOL(drm_atomic_state_clear
);
217 * __drm_atomic_state_free - free all memory for an atomic state
218 * @ref: This atomic state to deallocate
220 * This frees all memory associated with an atomic state, including all the
221 * per-object state for planes, crtcs and connectors.
223 void __drm_atomic_state_free(struct kref
*ref
)
225 struct drm_atomic_state
*state
= container_of(ref
, typeof(*state
), ref
);
226 struct drm_mode_config
*config
= &state
->dev
->mode_config
;
228 drm_atomic_state_clear(state
);
230 DRM_DEBUG_ATOMIC("Freeing atomic state %p\n", state
);
232 if (config
->funcs
->atomic_state_free
) {
233 config
->funcs
->atomic_state_free(state
);
235 drm_atomic_state_default_release(state
);
239 EXPORT_SYMBOL(__drm_atomic_state_free
);
242 * drm_atomic_get_crtc_state - get crtc state
243 * @state: global atomic state object
244 * @crtc: crtc to get state object for
246 * This function returns the crtc state for the given crtc, allocating it if
247 * needed. It will also grab the relevant crtc lock to make sure that the state
252 * Either the allocated state or the error code encoded into the pointer. When
253 * the error is EDEADLK then the w/w mutex code has detected a deadlock and the
254 * entire atomic sequence must be restarted. All other errors are fatal.
256 struct drm_crtc_state
*
257 drm_atomic_get_crtc_state(struct drm_atomic_state
*state
,
258 struct drm_crtc
*crtc
)
260 int ret
, index
= drm_crtc_index(crtc
);
261 struct drm_crtc_state
*crtc_state
;
263 WARN_ON(!state
->acquire_ctx
);
265 crtc_state
= drm_atomic_get_existing_crtc_state(state
, crtc
);
269 ret
= drm_modeset_lock(&crtc
->mutex
, state
->acquire_ctx
);
273 crtc_state
= crtc
->funcs
->atomic_duplicate_state(crtc
);
275 return ERR_PTR(-ENOMEM
);
277 state
->crtcs
[index
].state
= crtc_state
;
278 state
->crtcs
[index
].old_state
= crtc
->state
;
279 state
->crtcs
[index
].new_state
= crtc_state
;
280 state
->crtcs
[index
].ptr
= crtc
;
281 crtc_state
->state
= state
;
283 DRM_DEBUG_ATOMIC("Added [CRTC:%d:%s] %p state to %p\n",
284 crtc
->base
.id
, crtc
->name
, crtc_state
, state
);
288 EXPORT_SYMBOL(drm_atomic_get_crtc_state
);
290 static void set_out_fence_for_crtc(struct drm_atomic_state
*state
,
291 struct drm_crtc
*crtc
, s32 __user
*fence_ptr
)
293 state
->crtcs
[drm_crtc_index(crtc
)].out_fence_ptr
= fence_ptr
;
296 static s32 __user
*get_out_fence_for_crtc(struct drm_atomic_state
*state
,
297 struct drm_crtc
*crtc
)
299 s32 __user
*fence_ptr
;
301 fence_ptr
= state
->crtcs
[drm_crtc_index(crtc
)].out_fence_ptr
;
302 state
->crtcs
[drm_crtc_index(crtc
)].out_fence_ptr
= NULL
;
308 * drm_atomic_set_mode_for_crtc - set mode for CRTC
309 * @state: the CRTC whose incoming state to update
310 * @mode: kernel-internal mode to use for the CRTC, or NULL to disable
312 * Set a mode (originating from the kernel) on the desired CRTC state and update
313 * the enable property.
316 * Zero on success, error code on failure. Cannot return -EDEADLK.
318 int drm_atomic_set_mode_for_crtc(struct drm_crtc_state
*state
,
319 struct drm_display_mode
*mode
)
321 struct drm_mode_modeinfo umode
;
323 /* Early return for no change. */
324 if (mode
&& memcmp(&state
->mode
, mode
, sizeof(*mode
)) == 0)
327 drm_property_unreference_blob(state
->mode_blob
);
328 state
->mode_blob
= NULL
;
331 drm_mode_convert_to_umode(&umode
, mode
);
333 drm_property_create_blob(state
->crtc
->dev
,
336 if (IS_ERR(state
->mode_blob
))
337 return PTR_ERR(state
->mode_blob
);
339 drm_mode_copy(&state
->mode
, mode
);
340 state
->enable
= true;
341 DRM_DEBUG_ATOMIC("Set [MODE:%s] for CRTC state %p\n",
344 memset(&state
->mode
, 0, sizeof(state
->mode
));
345 state
->enable
= false;
346 DRM_DEBUG_ATOMIC("Set [NOMODE] for CRTC state %p\n",
352 EXPORT_SYMBOL(drm_atomic_set_mode_for_crtc
);
355 * drm_atomic_set_mode_prop_for_crtc - set mode for CRTC
356 * @state: the CRTC whose incoming state to update
357 * @blob: pointer to blob property to use for mode
359 * Set a mode (originating from a blob property) on the desired CRTC state.
360 * This function will take a reference on the blob property for the CRTC state,
361 * and release the reference held on the state's existing mode property, if any
365 * Zero on success, error code on failure. Cannot return -EDEADLK.
367 int drm_atomic_set_mode_prop_for_crtc(struct drm_crtc_state
*state
,
368 struct drm_property_blob
*blob
)
370 if (blob
== state
->mode_blob
)
373 drm_property_unreference_blob(state
->mode_blob
);
374 state
->mode_blob
= NULL
;
376 memset(&state
->mode
, 0, sizeof(state
->mode
));
379 if (blob
->length
!= sizeof(struct drm_mode_modeinfo
) ||
380 drm_mode_convert_umode(&state
->mode
,
381 (const struct drm_mode_modeinfo
*)
385 state
->mode_blob
= drm_property_reference_blob(blob
);
386 state
->enable
= true;
387 DRM_DEBUG_ATOMIC("Set [MODE:%s] for CRTC state %p\n",
388 state
->mode
.name
, state
);
390 state
->enable
= false;
391 DRM_DEBUG_ATOMIC("Set [NOMODE] for CRTC state %p\n",
397 EXPORT_SYMBOL(drm_atomic_set_mode_prop_for_crtc
);
400 * drm_atomic_replace_property_blob - replace a blob property
401 * @blob: a pointer to the member blob to be replaced
402 * @new_blob: the new blob to replace with
403 * @replaced: whether the blob has been replaced
406 * Zero on success, error code on failure
409 drm_atomic_replace_property_blob(struct drm_property_blob
**blob
,
410 struct drm_property_blob
*new_blob
,
413 struct drm_property_blob
*old_blob
= *blob
;
415 if (old_blob
== new_blob
)
418 drm_property_unreference_blob(old_blob
);
420 drm_property_reference_blob(new_blob
);
428 drm_atomic_replace_property_blob_from_id(struct drm_crtc
*crtc
,
429 struct drm_property_blob
**blob
,
431 ssize_t expected_size
,
434 struct drm_property_blob
*new_blob
= NULL
;
437 new_blob
= drm_property_lookup_blob(crtc
->dev
, blob_id
);
438 if (new_blob
== NULL
)
441 if (expected_size
> 0 && expected_size
!= new_blob
->length
) {
442 drm_property_unreference_blob(new_blob
);
447 drm_atomic_replace_property_blob(blob
, new_blob
, replaced
);
448 drm_property_unreference_blob(new_blob
);
454 * drm_atomic_crtc_set_property - set property on CRTC
455 * @crtc: the drm CRTC to set a property on
456 * @state: the state object to update with the new property value
457 * @property: the property to set
458 * @val: the new property value
460 * This function handles generic/core properties and calls out to driver's
461 * &drm_crtc_funcs.atomic_set_property for driver properties. To ensure
462 * consistent behavior you must call this function rather than the driver hook
466 * Zero on success, error code on failure
468 int drm_atomic_crtc_set_property(struct drm_crtc
*crtc
,
469 struct drm_crtc_state
*state
, struct drm_property
*property
,
472 struct drm_device
*dev
= crtc
->dev
;
473 struct drm_mode_config
*config
= &dev
->mode_config
;
474 bool replaced
= false;
477 if (property
== config
->prop_active
)
479 else if (property
== config
->prop_mode_id
) {
480 struct drm_property_blob
*mode
=
481 drm_property_lookup_blob(dev
, val
);
482 ret
= drm_atomic_set_mode_prop_for_crtc(state
, mode
);
483 drm_property_unreference_blob(mode
);
485 } else if (property
== config
->degamma_lut_property
) {
486 ret
= drm_atomic_replace_property_blob_from_id(crtc
,
491 state
->color_mgmt_changed
|= replaced
;
493 } else if (property
== config
->ctm_property
) {
494 ret
= drm_atomic_replace_property_blob_from_id(crtc
,
497 sizeof(struct drm_color_ctm
),
499 state
->color_mgmt_changed
|= replaced
;
501 } else if (property
== config
->gamma_lut_property
) {
502 ret
= drm_atomic_replace_property_blob_from_id(crtc
,
507 state
->color_mgmt_changed
|= replaced
;
509 } else if (property
== config
->prop_out_fence_ptr
) {
510 s32 __user
*fence_ptr
= u64_to_user_ptr(val
);
515 if (put_user(-1, fence_ptr
))
518 set_out_fence_for_crtc(state
->state
, crtc
, fence_ptr
);
519 } else if (crtc
->funcs
->atomic_set_property
)
520 return crtc
->funcs
->atomic_set_property(crtc
, state
, property
, val
);
526 EXPORT_SYMBOL(drm_atomic_crtc_set_property
);
529 * drm_atomic_crtc_get_property - get property value from CRTC state
530 * @crtc: the drm CRTC to set a property on
531 * @state: the state object to get the property value from
532 * @property: the property to set
533 * @val: return location for the property value
535 * This function handles generic/core properties and calls out to driver's
536 * &drm_crtc_funcs.atomic_get_property for driver properties. To ensure
537 * consistent behavior you must call this function rather than the driver hook
541 * Zero on success, error code on failure
544 drm_atomic_crtc_get_property(struct drm_crtc
*crtc
,
545 const struct drm_crtc_state
*state
,
546 struct drm_property
*property
, uint64_t *val
)
548 struct drm_device
*dev
= crtc
->dev
;
549 struct drm_mode_config
*config
= &dev
->mode_config
;
551 if (property
== config
->prop_active
)
552 *val
= state
->active
;
553 else if (property
== config
->prop_mode_id
)
554 *val
= (state
->mode_blob
) ? state
->mode_blob
->base
.id
: 0;
555 else if (property
== config
->degamma_lut_property
)
556 *val
= (state
->degamma_lut
) ? state
->degamma_lut
->base
.id
: 0;
557 else if (property
== config
->ctm_property
)
558 *val
= (state
->ctm
) ? state
->ctm
->base
.id
: 0;
559 else if (property
== config
->gamma_lut_property
)
560 *val
= (state
->gamma_lut
) ? state
->gamma_lut
->base
.id
: 0;
561 else if (property
== config
->prop_out_fence_ptr
)
563 else if (crtc
->funcs
->atomic_get_property
)
564 return crtc
->funcs
->atomic_get_property(crtc
, state
, property
, val
);
572 * drm_atomic_crtc_check - check crtc state
573 * @crtc: crtc to check
574 * @state: crtc state to check
576 * Provides core sanity checks for crtc state.
579 * Zero on success, error code on failure
581 static int drm_atomic_crtc_check(struct drm_crtc
*crtc
,
582 struct drm_crtc_state
*state
)
584 /* NOTE: we explicitly don't enforce constraints such as primary
585 * layer covering entire screen, since that is something we want
586 * to allow (on hw that supports it). For hw that does not, it
587 * should be checked in driver's crtc->atomic_check() vfunc.
589 * TODO: Add generic modeset state checks once we support those.
592 if (state
->active
&& !state
->enable
) {
593 DRM_DEBUG_ATOMIC("[CRTC:%d:%s] active without enabled\n",
594 crtc
->base
.id
, crtc
->name
);
598 /* The state->enable vs. state->mode_blob checks can be WARN_ON,
599 * as this is a kernel-internal detail that userspace should never
600 * be able to trigger. */
601 if (drm_core_check_feature(crtc
->dev
, DRIVER_ATOMIC
) &&
602 WARN_ON(state
->enable
&& !state
->mode_blob
)) {
603 DRM_DEBUG_ATOMIC("[CRTC:%d:%s] enabled without mode blob\n",
604 crtc
->base
.id
, crtc
->name
);
608 if (drm_core_check_feature(crtc
->dev
, DRIVER_ATOMIC
) &&
609 WARN_ON(!state
->enable
&& state
->mode_blob
)) {
610 DRM_DEBUG_ATOMIC("[CRTC:%d:%s] disabled with mode blob\n",
611 crtc
->base
.id
, crtc
->name
);
616 * Reject event generation for when a CRTC is off and stays off.
617 * It wouldn't be hard to implement this, but userspace has a track
618 * record of happily burning through 100% cpu (or worse, crash) when the
619 * display pipe is suspended. To avoid all that fun just reject updates
620 * that ask for events since likely that indicates a bug in the
621 * compositor's drawing loop. This is consistent with the vblank IOCTL
622 * and legacy page_flip IOCTL which also reject service on a disabled
625 if (state
->event
&& !state
->active
&& !crtc
->state
->active
) {
626 DRM_DEBUG_ATOMIC("[CRTC:%d:%s] requesting event but off\n",
627 crtc
->base
.id
, crtc
->name
);
634 static void drm_atomic_crtc_print_state(struct drm_printer
*p
,
635 const struct drm_crtc_state
*state
)
637 struct drm_crtc
*crtc
= state
->crtc
;
639 drm_printf(p
, "crtc[%u]: %s\n", crtc
->base
.id
, crtc
->name
);
640 drm_printf(p
, "\tenable=%d\n", state
->enable
);
641 drm_printf(p
, "\tactive=%d\n", state
->active
);
642 drm_printf(p
, "\tplanes_changed=%d\n", state
->planes_changed
);
643 drm_printf(p
, "\tmode_changed=%d\n", state
->mode_changed
);
644 drm_printf(p
, "\tactive_changed=%d\n", state
->active_changed
);
645 drm_printf(p
, "\tconnectors_changed=%d\n", state
->connectors_changed
);
646 drm_printf(p
, "\tcolor_mgmt_changed=%d\n", state
->color_mgmt_changed
);
647 drm_printf(p
, "\tplane_mask=%x\n", state
->plane_mask
);
648 drm_printf(p
, "\tconnector_mask=%x\n", state
->connector_mask
);
649 drm_printf(p
, "\tencoder_mask=%x\n", state
->encoder_mask
);
650 drm_printf(p
, "\tmode: " DRM_MODE_FMT
"\n", DRM_MODE_ARG(&state
->mode
));
652 if (crtc
->funcs
->atomic_print_state
)
653 crtc
->funcs
->atomic_print_state(p
, state
);
657 * drm_atomic_get_plane_state - get plane state
658 * @state: global atomic state object
659 * @plane: plane to get state object for
661 * This function returns the plane state for the given plane, allocating it if
662 * needed. It will also grab the relevant plane lock to make sure that the state
667 * Either the allocated state or the error code encoded into the pointer. When
668 * the error is EDEADLK then the w/w mutex code has detected a deadlock and the
669 * entire atomic sequence must be restarted. All other errors are fatal.
671 struct drm_plane_state
*
672 drm_atomic_get_plane_state(struct drm_atomic_state
*state
,
673 struct drm_plane
*plane
)
675 int ret
, index
= drm_plane_index(plane
);
676 struct drm_plane_state
*plane_state
;
678 WARN_ON(!state
->acquire_ctx
);
680 plane_state
= drm_atomic_get_existing_plane_state(state
, plane
);
684 ret
= drm_modeset_lock(&plane
->mutex
, state
->acquire_ctx
);
688 plane_state
= plane
->funcs
->atomic_duplicate_state(plane
);
690 return ERR_PTR(-ENOMEM
);
692 state
->planes
[index
].state
= plane_state
;
693 state
->planes
[index
].ptr
= plane
;
694 state
->planes
[index
].old_state
= plane
->state
;
695 state
->planes
[index
].new_state
= plane_state
;
696 plane_state
->state
= state
;
698 DRM_DEBUG_ATOMIC("Added [PLANE:%d:%s] %p state to %p\n",
699 plane
->base
.id
, plane
->name
, plane_state
, state
);
701 if (plane_state
->crtc
) {
702 struct drm_crtc_state
*crtc_state
;
704 crtc_state
= drm_atomic_get_crtc_state(state
,
706 if (IS_ERR(crtc_state
))
707 return ERR_CAST(crtc_state
);
712 EXPORT_SYMBOL(drm_atomic_get_plane_state
);
715 * drm_atomic_plane_set_property - set property on plane
716 * @plane: the drm plane to set a property on
717 * @state: the state object to update with the new property value
718 * @property: the property to set
719 * @val: the new property value
721 * This function handles generic/core properties and calls out to driver's
722 * &drm_plane_funcs.atomic_set_property for driver properties. To ensure
723 * consistent behavior you must call this function rather than the driver hook
727 * Zero on success, error code on failure
729 int drm_atomic_plane_set_property(struct drm_plane
*plane
,
730 struct drm_plane_state
*state
, struct drm_property
*property
,
733 struct drm_device
*dev
= plane
->dev
;
734 struct drm_mode_config
*config
= &dev
->mode_config
;
736 if (property
== config
->prop_fb_id
) {
737 struct drm_framebuffer
*fb
= drm_framebuffer_lookup(dev
, val
);
738 drm_atomic_set_fb_for_plane(state
, fb
);
740 drm_framebuffer_unreference(fb
);
741 } else if (property
== config
->prop_in_fence_fd
) {
745 if (U642I64(val
) == -1)
748 state
->fence
= sync_file_get_fence(val
);
752 } else if (property
== config
->prop_crtc_id
) {
753 struct drm_crtc
*crtc
= drm_crtc_find(dev
, val
);
754 return drm_atomic_set_crtc_for_plane(state
, crtc
);
755 } else if (property
== config
->prop_crtc_x
) {
756 state
->crtc_x
= U642I64(val
);
757 } else if (property
== config
->prop_crtc_y
) {
758 state
->crtc_y
= U642I64(val
);
759 } else if (property
== config
->prop_crtc_w
) {
761 } else if (property
== config
->prop_crtc_h
) {
763 } else if (property
== config
->prop_src_x
) {
765 } else if (property
== config
->prop_src_y
) {
767 } else if (property
== config
->prop_src_w
) {
769 } else if (property
== config
->prop_src_h
) {
771 } else if (property
== plane
->rotation_property
) {
772 if (!is_power_of_2(val
& DRM_ROTATE_MASK
))
774 state
->rotation
= val
;
775 } else if (property
== plane
->zpos_property
) {
777 } else if (plane
->funcs
->atomic_set_property
) {
778 return plane
->funcs
->atomic_set_property(plane
, state
,
786 EXPORT_SYMBOL(drm_atomic_plane_set_property
);
789 * drm_atomic_plane_get_property - get property value from plane state
790 * @plane: the drm plane to set a property on
791 * @state: the state object to get the property value from
792 * @property: the property to set
793 * @val: return location for the property value
795 * This function handles generic/core properties and calls out to driver's
796 * &drm_plane_funcs.atomic_get_property for driver properties. To ensure
797 * consistent behavior you must call this function rather than the driver hook
801 * Zero on success, error code on failure
804 drm_atomic_plane_get_property(struct drm_plane
*plane
,
805 const struct drm_plane_state
*state
,
806 struct drm_property
*property
, uint64_t *val
)
808 struct drm_device
*dev
= plane
->dev
;
809 struct drm_mode_config
*config
= &dev
->mode_config
;
811 if (property
== config
->prop_fb_id
) {
812 *val
= (state
->fb
) ? state
->fb
->base
.id
: 0;
813 } else if (property
== config
->prop_in_fence_fd
) {
815 } else if (property
== config
->prop_crtc_id
) {
816 *val
= (state
->crtc
) ? state
->crtc
->base
.id
: 0;
817 } else if (property
== config
->prop_crtc_x
) {
818 *val
= I642U64(state
->crtc_x
);
819 } else if (property
== config
->prop_crtc_y
) {
820 *val
= I642U64(state
->crtc_y
);
821 } else if (property
== config
->prop_crtc_w
) {
822 *val
= state
->crtc_w
;
823 } else if (property
== config
->prop_crtc_h
) {
824 *val
= state
->crtc_h
;
825 } else if (property
== config
->prop_src_x
) {
827 } else if (property
== config
->prop_src_y
) {
829 } else if (property
== config
->prop_src_w
) {
831 } else if (property
== config
->prop_src_h
) {
833 } else if (property
== plane
->rotation_property
) {
834 *val
= state
->rotation
;
835 } else if (property
== plane
->zpos_property
) {
837 } else if (plane
->funcs
->atomic_get_property
) {
838 return plane
->funcs
->atomic_get_property(plane
, state
, property
, val
);
847 plane_switching_crtc(struct drm_atomic_state
*state
,
848 struct drm_plane
*plane
,
849 struct drm_plane_state
*plane_state
)
851 if (!plane
->state
->crtc
|| !plane_state
->crtc
)
854 if (plane
->state
->crtc
== plane_state
->crtc
)
857 /* This could be refined, but currently there's no helper or driver code
858 * to implement direct switching of active planes nor userspace to take
859 * advantage of more direct plane switching without the intermediate
866 * drm_atomic_plane_check - check plane state
867 * @plane: plane to check
868 * @state: plane state to check
870 * Provides core sanity checks for plane state.
873 * Zero on success, error code on failure
875 static int drm_atomic_plane_check(struct drm_plane
*plane
,
876 struct drm_plane_state
*state
)
878 unsigned int fb_width
, fb_height
;
881 /* either *both* CRTC and FB must be set, or neither */
882 if (WARN_ON(state
->crtc
&& !state
->fb
)) {
883 DRM_DEBUG_ATOMIC("CRTC set but no FB\n");
885 } else if (WARN_ON(state
->fb
&& !state
->crtc
)) {
886 DRM_DEBUG_ATOMIC("FB set but no CRTC\n");
890 /* if disabled, we don't care about the rest of the state: */
894 /* Check whether this plane is usable on this CRTC */
895 if (!(plane
->possible_crtcs
& drm_crtc_mask(state
->crtc
))) {
896 DRM_DEBUG_ATOMIC("Invalid crtc for plane\n");
900 /* Check whether this plane supports the fb pixel format. */
901 ret
= drm_plane_check_pixel_format(plane
, state
->fb
->format
->format
);
903 struct drm_format_name_buf format_name
;
904 DRM_DEBUG_ATOMIC("Invalid pixel format %s\n",
905 drm_get_format_name(state
->fb
->format
->format
,
910 /* Give drivers some help against integer overflows */
911 if (state
->crtc_w
> INT_MAX
||
912 state
->crtc_x
> INT_MAX
- (int32_t) state
->crtc_w
||
913 state
->crtc_h
> INT_MAX
||
914 state
->crtc_y
> INT_MAX
- (int32_t) state
->crtc_h
) {
915 DRM_DEBUG_ATOMIC("Invalid CRTC coordinates %ux%u+%d+%d\n",
916 state
->crtc_w
, state
->crtc_h
,
917 state
->crtc_x
, state
->crtc_y
);
921 fb_width
= state
->fb
->width
<< 16;
922 fb_height
= state
->fb
->height
<< 16;
924 /* Make sure source coordinates are inside the fb. */
925 if (state
->src_w
> fb_width
||
926 state
->src_x
> fb_width
- state
->src_w
||
927 state
->src_h
> fb_height
||
928 state
->src_y
> fb_height
- state
->src_h
) {
929 DRM_DEBUG_ATOMIC("Invalid source coordinates "
930 "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
931 state
->src_w
>> 16, ((state
->src_w
& 0xffff) * 15625) >> 10,
932 state
->src_h
>> 16, ((state
->src_h
& 0xffff) * 15625) >> 10,
933 state
->src_x
>> 16, ((state
->src_x
& 0xffff) * 15625) >> 10,
934 state
->src_y
>> 16, ((state
->src_y
& 0xffff) * 15625) >> 10);
938 if (plane_switching_crtc(state
->state
, plane
, state
)) {
939 DRM_DEBUG_ATOMIC("[PLANE:%d:%s] switching CRTC directly\n",
940 plane
->base
.id
, plane
->name
);
947 static void drm_atomic_plane_print_state(struct drm_printer
*p
,
948 const struct drm_plane_state
*state
)
950 struct drm_plane
*plane
= state
->plane
;
951 struct drm_rect src
= drm_plane_state_src(state
);
952 struct drm_rect dest
= drm_plane_state_dest(state
);
954 drm_printf(p
, "plane[%u]: %s\n", plane
->base
.id
, plane
->name
);
955 drm_printf(p
, "\tcrtc=%s\n", state
->crtc
? state
->crtc
->name
: "(null)");
956 drm_printf(p
, "\tfb=%u\n", state
->fb
? state
->fb
->base
.id
: 0);
958 struct drm_framebuffer
*fb
= state
->fb
;
959 int i
, n
= fb
->format
->num_planes
;
960 struct drm_format_name_buf format_name
;
962 drm_printf(p
, "\t\tformat=%s\n",
963 drm_get_format_name(fb
->format
->format
, &format_name
));
964 drm_printf(p
, "\t\t\tmodifier=0x%llx\n", fb
->modifier
);
965 drm_printf(p
, "\t\tsize=%dx%d\n", fb
->width
, fb
->height
);
966 drm_printf(p
, "\t\tlayers:\n");
967 for (i
= 0; i
< n
; i
++) {
968 drm_printf(p
, "\t\t\tpitch[%d]=%u\n", i
, fb
->pitches
[i
]);
969 drm_printf(p
, "\t\t\toffset[%d]=%u\n", i
, fb
->offsets
[i
]);
972 drm_printf(p
, "\tcrtc-pos=" DRM_RECT_FMT
"\n", DRM_RECT_ARG(&dest
));
973 drm_printf(p
, "\tsrc-pos=" DRM_RECT_FP_FMT
"\n", DRM_RECT_FP_ARG(&src
));
974 drm_printf(p
, "\trotation=%x\n", state
->rotation
);
976 if (plane
->funcs
->atomic_print_state
)
977 plane
->funcs
->atomic_print_state(p
, state
);
981 * drm_atomic_get_connector_state - get connector state
982 * @state: global atomic state object
983 * @connector: connector to get state object for
985 * This function returns the connector state for the given connector,
986 * allocating it if needed. It will also grab the relevant connector lock to
987 * make sure that the state is consistent.
991 * Either the allocated state or the error code encoded into the pointer. When
992 * the error is EDEADLK then the w/w mutex code has detected a deadlock and the
993 * entire atomic sequence must be restarted. All other errors are fatal.
995 struct drm_connector_state
*
996 drm_atomic_get_connector_state(struct drm_atomic_state
*state
,
997 struct drm_connector
*connector
)
1000 struct drm_mode_config
*config
= &connector
->dev
->mode_config
;
1001 struct drm_connector_state
*connector_state
;
1003 WARN_ON(!state
->acquire_ctx
);
1005 ret
= drm_modeset_lock(&config
->connection_mutex
, state
->acquire_ctx
);
1007 return ERR_PTR(ret
);
1009 index
= drm_connector_index(connector
);
1011 if (index
>= state
->num_connector
) {
1012 struct __drm_connnectors_state
*c
;
1013 int alloc
= max(index
+ 1, config
->num_connector
);
1015 c
= krealloc(state
->connectors
, alloc
* sizeof(*state
->connectors
), GFP_KERNEL
);
1017 return ERR_PTR(-ENOMEM
);
1019 state
->connectors
= c
;
1020 memset(&state
->connectors
[state
->num_connector
], 0,
1021 sizeof(*state
->connectors
) * (alloc
- state
->num_connector
));
1023 state
->num_connector
= alloc
;
1026 if (state
->connectors
[index
].state
)
1027 return state
->connectors
[index
].state
;
1029 connector_state
= connector
->funcs
->atomic_duplicate_state(connector
);
1030 if (!connector_state
)
1031 return ERR_PTR(-ENOMEM
);
1033 drm_connector_reference(connector
);
1034 state
->connectors
[index
].state
= connector_state
;
1035 state
->connectors
[index
].old_state
= connector
->state
;
1036 state
->connectors
[index
].new_state
= connector_state
;
1037 state
->connectors
[index
].ptr
= connector
;
1038 connector_state
->state
= state
;
1040 DRM_DEBUG_ATOMIC("Added [CONNECTOR:%d:%s] %p state to %p\n",
1041 connector
->base
.id
, connector
->name
,
1042 connector_state
, state
);
1044 if (connector_state
->crtc
) {
1045 struct drm_crtc_state
*crtc_state
;
1047 crtc_state
= drm_atomic_get_crtc_state(state
,
1048 connector_state
->crtc
);
1049 if (IS_ERR(crtc_state
))
1050 return ERR_CAST(crtc_state
);
1053 return connector_state
;
1055 EXPORT_SYMBOL(drm_atomic_get_connector_state
);
1058 * drm_atomic_connector_set_property - set property on connector.
1059 * @connector: the drm connector to set a property on
1060 * @state: the state object to update with the new property value
1061 * @property: the property to set
1062 * @val: the new property value
1064 * This function handles generic/core properties and calls out to driver's
1065 * &drm_connector_funcs.atomic_set_property for driver properties. To ensure
1066 * consistent behavior you must call this function rather than the driver hook
1070 * Zero on success, error code on failure
1072 int drm_atomic_connector_set_property(struct drm_connector
*connector
,
1073 struct drm_connector_state
*state
, struct drm_property
*property
,
1076 struct drm_device
*dev
= connector
->dev
;
1077 struct drm_mode_config
*config
= &dev
->mode_config
;
1079 if (property
== config
->prop_crtc_id
) {
1080 struct drm_crtc
*crtc
= drm_crtc_find(dev
, val
);
1081 return drm_atomic_set_crtc_for_connector(state
, crtc
);
1082 } else if (property
== config
->dpms_property
) {
1083 /* setting DPMS property requires special handling, which
1084 * is done in legacy setprop path for us. Disallow (for
1085 * now?) atomic writes to DPMS property:
1088 } else if (property
== config
->tv_select_subconnector_property
) {
1089 state
->tv
.subconnector
= val
;
1090 } else if (property
== config
->tv_left_margin_property
) {
1091 state
->tv
.margins
.left
= val
;
1092 } else if (property
== config
->tv_right_margin_property
) {
1093 state
->tv
.margins
.right
= val
;
1094 } else if (property
== config
->tv_top_margin_property
) {
1095 state
->tv
.margins
.top
= val
;
1096 } else if (property
== config
->tv_bottom_margin_property
) {
1097 state
->tv
.margins
.bottom
= val
;
1098 } else if (property
== config
->tv_mode_property
) {
1099 state
->tv
.mode
= val
;
1100 } else if (property
== config
->tv_brightness_property
) {
1101 state
->tv
.brightness
= val
;
1102 } else if (property
== config
->tv_contrast_property
) {
1103 state
->tv
.contrast
= val
;
1104 } else if (property
== config
->tv_flicker_reduction_property
) {
1105 state
->tv
.flicker_reduction
= val
;
1106 } else if (property
== config
->tv_overscan_property
) {
1107 state
->tv
.overscan
= val
;
1108 } else if (property
== config
->tv_saturation_property
) {
1109 state
->tv
.saturation
= val
;
1110 } else if (property
== config
->tv_hue_property
) {
1111 state
->tv
.hue
= val
;
1112 } else if (connector
->funcs
->atomic_set_property
) {
1113 return connector
->funcs
->atomic_set_property(connector
,
1114 state
, property
, val
);
1121 EXPORT_SYMBOL(drm_atomic_connector_set_property
);
1123 static void drm_atomic_connector_print_state(struct drm_printer
*p
,
1124 const struct drm_connector_state
*state
)
1126 struct drm_connector
*connector
= state
->connector
;
1128 drm_printf(p
, "connector[%u]: %s\n", connector
->base
.id
, connector
->name
);
1129 drm_printf(p
, "\tcrtc=%s\n", state
->crtc
? state
->crtc
->name
: "(null)");
1131 if (connector
->funcs
->atomic_print_state
)
1132 connector
->funcs
->atomic_print_state(p
, state
);
1136 * drm_atomic_connector_get_property - get property value from connector state
1137 * @connector: the drm connector to set a property on
1138 * @state: the state object to get the property value from
1139 * @property: the property to set
1140 * @val: return location for the property value
1142 * This function handles generic/core properties and calls out to driver's
1143 * &drm_connector_funcs.atomic_get_property for driver properties. To ensure
1144 * consistent behavior you must call this function rather than the driver hook
1148 * Zero on success, error code on failure
1151 drm_atomic_connector_get_property(struct drm_connector
*connector
,
1152 const struct drm_connector_state
*state
,
1153 struct drm_property
*property
, uint64_t *val
)
1155 struct drm_device
*dev
= connector
->dev
;
1156 struct drm_mode_config
*config
= &dev
->mode_config
;
1158 if (property
== config
->prop_crtc_id
) {
1159 *val
= (state
->crtc
) ? state
->crtc
->base
.id
: 0;
1160 } else if (property
== config
->dpms_property
) {
1161 *val
= connector
->dpms
;
1162 } else if (property
== config
->tv_select_subconnector_property
) {
1163 *val
= state
->tv
.subconnector
;
1164 } else if (property
== config
->tv_left_margin_property
) {
1165 *val
= state
->tv
.margins
.left
;
1166 } else if (property
== config
->tv_right_margin_property
) {
1167 *val
= state
->tv
.margins
.right
;
1168 } else if (property
== config
->tv_top_margin_property
) {
1169 *val
= state
->tv
.margins
.top
;
1170 } else if (property
== config
->tv_bottom_margin_property
) {
1171 *val
= state
->tv
.margins
.bottom
;
1172 } else if (property
== config
->tv_mode_property
) {
1173 *val
= state
->tv
.mode
;
1174 } else if (property
== config
->tv_brightness_property
) {
1175 *val
= state
->tv
.brightness
;
1176 } else if (property
== config
->tv_contrast_property
) {
1177 *val
= state
->tv
.contrast
;
1178 } else if (property
== config
->tv_flicker_reduction_property
) {
1179 *val
= state
->tv
.flicker_reduction
;
1180 } else if (property
== config
->tv_overscan_property
) {
1181 *val
= state
->tv
.overscan
;
1182 } else if (property
== config
->tv_saturation_property
) {
1183 *val
= state
->tv
.saturation
;
1184 } else if (property
== config
->tv_hue_property
) {
1185 *val
= state
->tv
.hue
;
1186 } else if (connector
->funcs
->atomic_get_property
) {
1187 return connector
->funcs
->atomic_get_property(connector
,
1188 state
, property
, val
);
1196 int drm_atomic_get_property(struct drm_mode_object
*obj
,
1197 struct drm_property
*property
, uint64_t *val
)
1199 struct drm_device
*dev
= property
->dev
;
1202 switch (obj
->type
) {
1203 case DRM_MODE_OBJECT_CONNECTOR
: {
1204 struct drm_connector
*connector
= obj_to_connector(obj
);
1205 WARN_ON(!drm_modeset_is_locked(&dev
->mode_config
.connection_mutex
));
1206 ret
= drm_atomic_connector_get_property(connector
,
1207 connector
->state
, property
, val
);
1210 case DRM_MODE_OBJECT_CRTC
: {
1211 struct drm_crtc
*crtc
= obj_to_crtc(obj
);
1212 WARN_ON(!drm_modeset_is_locked(&crtc
->mutex
));
1213 ret
= drm_atomic_crtc_get_property(crtc
,
1214 crtc
->state
, property
, val
);
1217 case DRM_MODE_OBJECT_PLANE
: {
1218 struct drm_plane
*plane
= obj_to_plane(obj
);
1219 WARN_ON(!drm_modeset_is_locked(&plane
->mutex
));
1220 ret
= drm_atomic_plane_get_property(plane
,
1221 plane
->state
, property
, val
);
1233 * drm_atomic_set_crtc_for_plane - set crtc for plane
1234 * @plane_state: the plane whose incoming state to update
1235 * @crtc: crtc to use for the plane
1237 * Changing the assigned crtc for a plane requires us to grab the lock and state
1238 * for the new crtc, as needed. This function takes care of all these details
1239 * besides updating the pointer in the state object itself.
1242 * 0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK
1243 * then the w/w mutex code has detected a deadlock and the entire atomic
1244 * sequence must be restarted. All other errors are fatal.
1247 drm_atomic_set_crtc_for_plane(struct drm_plane_state
*plane_state
,
1248 struct drm_crtc
*crtc
)
1250 struct drm_plane
*plane
= plane_state
->plane
;
1251 struct drm_crtc_state
*crtc_state
;
1253 if (plane_state
->crtc
) {
1254 crtc_state
= drm_atomic_get_crtc_state(plane_state
->state
,
1256 if (WARN_ON(IS_ERR(crtc_state
)))
1257 return PTR_ERR(crtc_state
);
1259 crtc_state
->plane_mask
&= ~(1 << drm_plane_index(plane
));
1262 plane_state
->crtc
= crtc
;
1265 crtc_state
= drm_atomic_get_crtc_state(plane_state
->state
,
1267 if (IS_ERR(crtc_state
))
1268 return PTR_ERR(crtc_state
);
1269 crtc_state
->plane_mask
|= (1 << drm_plane_index(plane
));
1273 DRM_DEBUG_ATOMIC("Link plane state %p to [CRTC:%d:%s]\n",
1274 plane_state
, crtc
->base
.id
, crtc
->name
);
1276 DRM_DEBUG_ATOMIC("Link plane state %p to [NOCRTC]\n",
1281 EXPORT_SYMBOL(drm_atomic_set_crtc_for_plane
);
1284 * drm_atomic_set_fb_for_plane - set framebuffer for plane
1285 * @plane_state: atomic state object for the plane
1286 * @fb: fb to use for the plane
1288 * Changing the assigned framebuffer for a plane requires us to grab a reference
1289 * to the new fb and drop the reference to the old fb, if there is one. This
1290 * function takes care of all these details besides updating the pointer in the
1291 * state object itself.
1294 drm_atomic_set_fb_for_plane(struct drm_plane_state
*plane_state
,
1295 struct drm_framebuffer
*fb
)
1298 DRM_DEBUG_ATOMIC("Set [FB:%d] for plane state %p\n",
1299 fb
->base
.id
, plane_state
);
1301 DRM_DEBUG_ATOMIC("Set [NOFB] for plane state %p\n",
1304 drm_framebuffer_assign(&plane_state
->fb
, fb
);
1306 EXPORT_SYMBOL(drm_atomic_set_fb_for_plane
);
1309 * drm_atomic_set_fence_for_plane - set fence for plane
1310 * @plane_state: atomic state object for the plane
1311 * @fence: dma_fence to use for the plane
1313 * Helper to setup the plane_state fence in case it is not set yet.
1314 * By using this drivers doesn't need to worry if the user choose
1315 * implicit or explicit fencing.
1317 * This function will not set the fence to the state if it was set
1318 * via explicit fencing interfaces on the atomic ioctl. In that case it will
1319 * drop the reference to the fence as we are not storing it anywhere.
1320 * Otherwise, if &drm_plane_state.fence is not set this function we just set it
1321 * with the received implicit fence. In both cases this function consumes a
1322 * reference for @fence.
1325 drm_atomic_set_fence_for_plane(struct drm_plane_state
*plane_state
,
1326 struct dma_fence
*fence
)
1328 if (plane_state
->fence
) {
1329 dma_fence_put(fence
);
1333 plane_state
->fence
= fence
;
1335 EXPORT_SYMBOL(drm_atomic_set_fence_for_plane
);
1338 * drm_atomic_set_crtc_for_connector - set crtc for connector
1339 * @conn_state: atomic state object for the connector
1340 * @crtc: crtc to use for the connector
1342 * Changing the assigned crtc for a connector requires us to grab the lock and
1343 * state for the new crtc, as needed. This function takes care of all these
1344 * details besides updating the pointer in the state object itself.
1347 * 0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK
1348 * then the w/w mutex code has detected a deadlock and the entire atomic
1349 * sequence must be restarted. All other errors are fatal.
1352 drm_atomic_set_crtc_for_connector(struct drm_connector_state
*conn_state
,
1353 struct drm_crtc
*crtc
)
1355 struct drm_crtc_state
*crtc_state
;
1357 if (conn_state
->crtc
== crtc
)
1360 if (conn_state
->crtc
) {
1361 crtc_state
= drm_atomic_get_existing_crtc_state(conn_state
->state
,
1364 crtc_state
->connector_mask
&=
1365 ~(1 << drm_connector_index(conn_state
->connector
));
1367 drm_connector_unreference(conn_state
->connector
);
1368 conn_state
->crtc
= NULL
;
1372 crtc_state
= drm_atomic_get_crtc_state(conn_state
->state
, crtc
);
1373 if (IS_ERR(crtc_state
))
1374 return PTR_ERR(crtc_state
);
1376 crtc_state
->connector_mask
|=
1377 1 << drm_connector_index(conn_state
->connector
);
1379 drm_connector_reference(conn_state
->connector
);
1380 conn_state
->crtc
= crtc
;
1382 DRM_DEBUG_ATOMIC("Link connector state %p to [CRTC:%d:%s]\n",
1383 conn_state
, crtc
->base
.id
, crtc
->name
);
1385 DRM_DEBUG_ATOMIC("Link connector state %p to [NOCRTC]\n",
1391 EXPORT_SYMBOL(drm_atomic_set_crtc_for_connector
);
1394 * drm_atomic_add_affected_connectors - add connectors for crtc
1395 * @state: atomic state
1398 * This function walks the current configuration and adds all connectors
1399 * currently using @crtc to the atomic configuration @state. Note that this
1400 * function must acquire the connection mutex. This can potentially cause
1401 * unneeded seralization if the update is just for the planes on one crtc. Hence
1402 * drivers and helpers should only call this when really needed (e.g. when a
1403 * full modeset needs to happen due to some change).
1406 * 0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK
1407 * then the w/w mutex code has detected a deadlock and the entire atomic
1408 * sequence must be restarted. All other errors are fatal.
1411 drm_atomic_add_affected_connectors(struct drm_atomic_state
*state
,
1412 struct drm_crtc
*crtc
)
1414 struct drm_mode_config
*config
= &state
->dev
->mode_config
;
1415 struct drm_connector
*connector
;
1416 struct drm_connector_state
*conn_state
;
1417 struct drm_connector_list_iter conn_iter
;
1418 struct drm_crtc_state
*crtc_state
;
1421 crtc_state
= drm_atomic_get_crtc_state(state
, crtc
);
1422 if (IS_ERR(crtc_state
))
1423 return PTR_ERR(crtc_state
);
1425 ret
= drm_modeset_lock(&config
->connection_mutex
, state
->acquire_ctx
);
1429 DRM_DEBUG_ATOMIC("Adding all current connectors for [CRTC:%d:%s] to %p\n",
1430 crtc
->base
.id
, crtc
->name
, state
);
1433 * Changed connectors are already in @state, so only need to look
1434 * at the connector_mask in crtc_state.
1436 drm_connector_list_iter_get(state
->dev
, &conn_iter
);
1437 drm_for_each_connector_iter(connector
, &conn_iter
) {
1438 if (!(crtc_state
->connector_mask
& (1 << drm_connector_index(connector
))))
1441 conn_state
= drm_atomic_get_connector_state(state
, connector
);
1442 if (IS_ERR(conn_state
)) {
1443 drm_connector_list_iter_put(&conn_iter
);
1444 return PTR_ERR(conn_state
);
1447 drm_connector_list_iter_put(&conn_iter
);
1451 EXPORT_SYMBOL(drm_atomic_add_affected_connectors
);
1454 * drm_atomic_add_affected_planes - add planes for crtc
1455 * @state: atomic state
1458 * This function walks the current configuration and adds all planes
1459 * currently used by @crtc to the atomic configuration @state. This is useful
1460 * when an atomic commit also needs to check all currently enabled plane on
1461 * @crtc, e.g. when changing the mode. It's also useful when re-enabling a CRTC
1462 * to avoid special code to force-enable all planes.
1464 * Since acquiring a plane state will always also acquire the w/w mutex of the
1465 * current CRTC for that plane (if there is any) adding all the plane states for
1466 * a CRTC will not reduce parallism of atomic updates.
1469 * 0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK
1470 * then the w/w mutex code has detected a deadlock and the entire atomic
1471 * sequence must be restarted. All other errors are fatal.
1474 drm_atomic_add_affected_planes(struct drm_atomic_state
*state
,
1475 struct drm_crtc
*crtc
)
1477 struct drm_plane
*plane
;
1479 WARN_ON(!drm_atomic_get_existing_crtc_state(state
, crtc
));
1481 drm_for_each_plane_mask(plane
, state
->dev
, crtc
->state
->plane_mask
) {
1482 struct drm_plane_state
*plane_state
=
1483 drm_atomic_get_plane_state(state
, plane
);
1485 if (IS_ERR(plane_state
))
1486 return PTR_ERR(plane_state
);
1490 EXPORT_SYMBOL(drm_atomic_add_affected_planes
);
1493 * drm_atomic_legacy_backoff - locking backoff for legacy ioctls
1494 * @state: atomic state
1496 * This function should be used by legacy entry points which don't understand
1497 * -EDEADLK semantics. For simplicity this one will grab all modeset locks after
1498 * the slowpath completed.
1500 void drm_atomic_legacy_backoff(struct drm_atomic_state
*state
)
1502 struct drm_device
*dev
= state
->dev
;
1503 unsigned crtc_mask
= 0;
1504 struct drm_crtc
*crtc
;
1506 bool global
= false;
1508 drm_for_each_crtc(crtc
, dev
) {
1509 if (crtc
->acquire_ctx
!= state
->acquire_ctx
)
1512 crtc_mask
|= drm_crtc_mask(crtc
);
1513 crtc
->acquire_ctx
= NULL
;
1516 if (WARN_ON(dev
->mode_config
.acquire_ctx
== state
->acquire_ctx
)) {
1519 dev
->mode_config
.acquire_ctx
= NULL
;
1523 drm_modeset_backoff(state
->acquire_ctx
);
1525 ret
= drm_modeset_lock_all_ctx(dev
, state
->acquire_ctx
);
1529 drm_for_each_crtc(crtc
, dev
)
1530 if (drm_crtc_mask(crtc
) & crtc_mask
)
1531 crtc
->acquire_ctx
= state
->acquire_ctx
;
1534 dev
->mode_config
.acquire_ctx
= state
->acquire_ctx
;
1536 EXPORT_SYMBOL(drm_atomic_legacy_backoff
);
1539 * drm_atomic_check_only - check whether a given config would work
1540 * @state: atomic configuration to check
1542 * Note that this function can return -EDEADLK if the driver needed to acquire
1543 * more locks but encountered a deadlock. The caller must then do the usual w/w
1544 * backoff dance and restart. All other errors are fatal.
1547 * 0 on success, negative error code on failure.
1549 int drm_atomic_check_only(struct drm_atomic_state
*state
)
1551 struct drm_device
*dev
= state
->dev
;
1552 struct drm_mode_config
*config
= &dev
->mode_config
;
1553 struct drm_plane
*plane
;
1554 struct drm_plane_state
*plane_state
;
1555 struct drm_crtc
*crtc
;
1556 struct drm_crtc_state
*crtc_state
;
1559 DRM_DEBUG_ATOMIC("checking %p\n", state
);
1561 for_each_new_plane_in_state(state
, plane
, plane_state
, i
) {
1562 ret
= drm_atomic_plane_check(plane
, plane_state
);
1564 DRM_DEBUG_ATOMIC("[PLANE:%d:%s] atomic core check failed\n",
1565 plane
->base
.id
, plane
->name
);
1570 for_each_new_crtc_in_state(state
, crtc
, crtc_state
, i
) {
1571 ret
= drm_atomic_crtc_check(crtc
, crtc_state
);
1573 DRM_DEBUG_ATOMIC("[CRTC:%d:%s] atomic core check failed\n",
1574 crtc
->base
.id
, crtc
->name
);
1579 if (config
->funcs
->atomic_check
)
1580 ret
= config
->funcs
->atomic_check(state
->dev
, state
);
1582 if (!state
->allow_modeset
) {
1583 for_each_new_crtc_in_state(state
, crtc
, crtc_state
, i
) {
1584 if (drm_atomic_crtc_needs_modeset(crtc_state
)) {
1585 DRM_DEBUG_ATOMIC("[CRTC:%d:%s] requires full modeset\n",
1586 crtc
->base
.id
, crtc
->name
);
1594 EXPORT_SYMBOL(drm_atomic_check_only
);
1597 * drm_atomic_commit - commit configuration atomically
1598 * @state: atomic configuration to check
1600 * Note that this function can return -EDEADLK if the driver needed to acquire
1601 * more locks but encountered a deadlock. The caller must then do the usual w/w
1602 * backoff dance and restart. All other errors are fatal.
1604 * This function will take its own reference on @state.
1605 * Callers should always release their reference with drm_atomic_state_put().
1608 * 0 on success, negative error code on failure.
1610 int drm_atomic_commit(struct drm_atomic_state
*state
)
1612 struct drm_mode_config
*config
= &state
->dev
->mode_config
;
1615 ret
= drm_atomic_check_only(state
);
1619 DRM_DEBUG_ATOMIC("commiting %p\n", state
);
1621 return config
->funcs
->atomic_commit(state
->dev
, state
, false);
1623 EXPORT_SYMBOL(drm_atomic_commit
);
1626 * drm_atomic_nonblocking_commit - atomic nonblocking commit
1627 * @state: atomic configuration to check
1629 * Note that this function can return -EDEADLK if the driver needed to acquire
1630 * more locks but encountered a deadlock. The caller must then do the usual w/w
1631 * backoff dance and restart. All other errors are fatal.
1633 * This function will take its own reference on @state.
1634 * Callers should always release their reference with drm_atomic_state_put().
1637 * 0 on success, negative error code on failure.
1639 int drm_atomic_nonblocking_commit(struct drm_atomic_state
*state
)
1641 struct drm_mode_config
*config
= &state
->dev
->mode_config
;
1644 ret
= drm_atomic_check_only(state
);
1648 DRM_DEBUG_ATOMIC("commiting %p nonblocking\n", state
);
1650 return config
->funcs
->atomic_commit(state
->dev
, state
, true);
1652 EXPORT_SYMBOL(drm_atomic_nonblocking_commit
);
1654 static void drm_atomic_print_state(const struct drm_atomic_state
*state
)
1656 struct drm_printer p
= drm_info_printer(state
->dev
->dev
);
1657 struct drm_plane
*plane
;
1658 struct drm_plane_state
*plane_state
;
1659 struct drm_crtc
*crtc
;
1660 struct drm_crtc_state
*crtc_state
;
1661 struct drm_connector
*connector
;
1662 struct drm_connector_state
*connector_state
;
1665 DRM_DEBUG_ATOMIC("checking %p\n", state
);
1667 for_each_new_plane_in_state(state
, plane
, plane_state
, i
)
1668 drm_atomic_plane_print_state(&p
, plane_state
);
1670 for_each_new_crtc_in_state(state
, crtc
, crtc_state
, i
)
1671 drm_atomic_crtc_print_state(&p
, crtc_state
);
1673 for_each_new_connector_in_state(state
, connector
, connector_state
, i
)
1674 drm_atomic_connector_print_state(&p
, connector_state
);
1678 * drm_state_dump - dump entire device atomic state
1679 * @dev: the drm device
1680 * @p: where to print the state to
1682 * Just for debugging. Drivers might want an option to dump state
1683 * to dmesg in case of error irq's. (Hint, you probably want to
1686 * The caller must drm_modeset_lock_all(), or if this is called
1687 * from error irq handler, it should not be enabled by default.
1688 * (Ie. if you are debugging errors you might not care that this
1689 * is racey. But calling this without all modeset locks held is
1690 * not inherently safe.)
1692 void drm_state_dump(struct drm_device
*dev
, struct drm_printer
*p
)
1694 struct drm_mode_config
*config
= &dev
->mode_config
;
1695 struct drm_plane
*plane
;
1696 struct drm_crtc
*crtc
;
1697 struct drm_connector
*connector
;
1698 struct drm_connector_list_iter conn_iter
;
1700 if (!drm_core_check_feature(dev
, DRIVER_ATOMIC
))
1703 list_for_each_entry(plane
, &config
->plane_list
, head
)
1704 drm_atomic_plane_print_state(p
, plane
->state
);
1706 list_for_each_entry(crtc
, &config
->crtc_list
, head
)
1707 drm_atomic_crtc_print_state(p
, crtc
->state
);
1709 drm_connector_list_iter_get(dev
, &conn_iter
);
1710 drm_for_each_connector_iter(connector
, &conn_iter
)
1711 drm_atomic_connector_print_state(p
, connector
->state
);
1712 drm_connector_list_iter_put(&conn_iter
);
1714 EXPORT_SYMBOL(drm_state_dump
);
1716 #ifdef CONFIG_DEBUG_FS
1717 static int drm_state_info(struct seq_file
*m
, void *data
)
1719 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
1720 struct drm_device
*dev
= node
->minor
->dev
;
1721 struct drm_printer p
= drm_seq_file_printer(m
);
1723 drm_modeset_lock_all(dev
);
1724 drm_state_dump(dev
, &p
);
1725 drm_modeset_unlock_all(dev
);
1730 /* any use in debugfs files to dump individual planes/crtc/etc? */
1731 static const struct drm_info_list drm_atomic_debugfs_list
[] = {
1732 {"state", drm_state_info
, 0},
1735 int drm_atomic_debugfs_init(struct drm_minor
*minor
)
1737 return drm_debugfs_create_files(drm_atomic_debugfs_list
,
1738 ARRAY_SIZE(drm_atomic_debugfs_list
),
1739 minor
->debugfs_root
, minor
);
1744 * The big monstor ioctl
1747 static struct drm_pending_vblank_event
*create_vblank_event(
1748 struct drm_device
*dev
, uint64_t user_data
)
1750 struct drm_pending_vblank_event
*e
= NULL
;
1752 e
= kzalloc(sizeof *e
, GFP_KERNEL
);
1756 e
->event
.base
.type
= DRM_EVENT_FLIP_COMPLETE
;
1757 e
->event
.base
.length
= sizeof(e
->event
);
1758 e
->event
.user_data
= user_data
;
1763 static int atomic_set_prop(struct drm_atomic_state
*state
,
1764 struct drm_mode_object
*obj
, struct drm_property
*prop
,
1765 uint64_t prop_value
)
1767 struct drm_mode_object
*ref
;
1770 if (!drm_property_change_valid_get(prop
, prop_value
, &ref
))
1773 switch (obj
->type
) {
1774 case DRM_MODE_OBJECT_CONNECTOR
: {
1775 struct drm_connector
*connector
= obj_to_connector(obj
);
1776 struct drm_connector_state
*connector_state
;
1778 connector_state
= drm_atomic_get_connector_state(state
, connector
);
1779 if (IS_ERR(connector_state
)) {
1780 ret
= PTR_ERR(connector_state
);
1784 ret
= drm_atomic_connector_set_property(connector
,
1785 connector_state
, prop
, prop_value
);
1788 case DRM_MODE_OBJECT_CRTC
: {
1789 struct drm_crtc
*crtc
= obj_to_crtc(obj
);
1790 struct drm_crtc_state
*crtc_state
;
1792 crtc_state
= drm_atomic_get_crtc_state(state
, crtc
);
1793 if (IS_ERR(crtc_state
)) {
1794 ret
= PTR_ERR(crtc_state
);
1798 ret
= drm_atomic_crtc_set_property(crtc
,
1799 crtc_state
, prop
, prop_value
);
1802 case DRM_MODE_OBJECT_PLANE
: {
1803 struct drm_plane
*plane
= obj_to_plane(obj
);
1804 struct drm_plane_state
*plane_state
;
1806 plane_state
= drm_atomic_get_plane_state(state
, plane
);
1807 if (IS_ERR(plane_state
)) {
1808 ret
= PTR_ERR(plane_state
);
1812 ret
= drm_atomic_plane_set_property(plane
,
1813 plane_state
, prop
, prop_value
);
1821 drm_property_change_valid_put(prop
, ref
);
1826 * drm_atomic_clean_old_fb -- Unset old_fb pointers and set plane->fb pointers.
1828 * @dev: drm device to check.
1829 * @plane_mask: plane mask for planes that were updated.
1830 * @ret: return value, can be -EDEADLK for a retry.
1832 * Before doing an update &drm_plane.old_fb is set to &drm_plane.fb, but before
1833 * dropping the locks old_fb needs to be set to NULL and plane->fb updated. This
1834 * is a common operation for each atomic update, so this call is split off as a
1837 void drm_atomic_clean_old_fb(struct drm_device
*dev
,
1838 unsigned plane_mask
,
1841 struct drm_plane
*plane
;
1843 /* if succeeded, fixup legacy plane crtc/fb ptrs before dropping
1844 * locks (ie. while it is still safe to deref plane->state). We
1845 * need to do this here because the driver entry points cannot
1846 * distinguish between legacy and atomic ioctls.
1848 drm_for_each_plane_mask(plane
, dev
, plane_mask
) {
1850 struct drm_framebuffer
*new_fb
= plane
->state
->fb
;
1852 drm_framebuffer_reference(new_fb
);
1854 plane
->crtc
= plane
->state
->crtc
;
1857 drm_framebuffer_unreference(plane
->old_fb
);
1859 plane
->old_fb
= NULL
;
1862 EXPORT_SYMBOL(drm_atomic_clean_old_fb
);
1865 * DOC: explicit fencing properties
1867 * Explicit fencing allows userspace to control the buffer synchronization
1868 * between devices. A Fence or a group of fences are transfered to/from
1869 * userspace using Sync File fds and there are two DRM properties for that.
1870 * IN_FENCE_FD on each DRM Plane to send fences to the kernel and
1871 * OUT_FENCE_PTR on each DRM CRTC to receive fences from the kernel.
1873 * As a contrast, with implicit fencing the kernel keeps track of any
1874 * ongoing rendering, and automatically ensures that the atomic update waits
1875 * for any pending rendering to complete. For shared buffers represented with
1876 * a &struct dma_buf this is tracked in &struct reservation_object.
1877 * Implicit syncing is how Linux traditionally worked (e.g. DRI2/3 on X.org),
1878 * whereas explicit fencing is what Android wants.
1881 * Use this property to pass a fence that DRM should wait on before
1882 * proceeding with the Atomic Commit request and show the framebuffer for
1883 * the plane on the screen. The fence can be either a normal fence or a
1884 * merged one, the sync_file framework will handle both cases and use a
1885 * fence_array if a merged fence is received. Passing -1 here means no
1886 * fences to wait on.
1888 * If the Atomic Commit request has the DRM_MODE_ATOMIC_TEST_ONLY flag
1889 * it will only check if the Sync File is a valid one.
1891 * On the driver side the fence is stored on the @fence parameter of
1892 * &struct drm_plane_state. Drivers which also support implicit fencing
1893 * should set the implicit fence using drm_atomic_set_fence_for_plane(),
1894 * to make sure there's consistent behaviour between drivers in precedence
1895 * of implicit vs. explicit fencing.
1898 * Use this property to pass a file descriptor pointer to DRM. Once the
1899 * Atomic Commit request call returns OUT_FENCE_PTR will be filled with
1900 * the file descriptor number of a Sync File. This Sync File contains the
1901 * CRTC fence that will be signaled when all framebuffers present on the
1902 * Atomic Commit * request for that given CRTC are scanned out on the
1905 * The Atomic Commit request fails if a invalid pointer is passed. If the
1906 * Atomic Commit request fails for any other reason the out fence fd
1907 * returned will be -1. On a Atomic Commit with the
1908 * DRM_MODE_ATOMIC_TEST_ONLY flag the out fence will also be set to -1.
1910 * Note that out-fences don't have a special interface to drivers and are
1911 * internally represented by a &struct drm_pending_vblank_event in struct
1912 * &drm_crtc_state, which is also used by the nonblocking atomic commit
1913 * helpers and for the DRM event handling for existing userspace.
1916 struct drm_out_fence_state
{
1917 s32 __user
*out_fence_ptr
;
1918 struct sync_file
*sync_file
;
1922 static int setup_out_fence(struct drm_out_fence_state
*fence_state
,
1923 struct dma_fence
*fence
)
1925 fence_state
->fd
= get_unused_fd_flags(O_CLOEXEC
);
1926 if (fence_state
->fd
< 0)
1927 return fence_state
->fd
;
1929 if (put_user(fence_state
->fd
, fence_state
->out_fence_ptr
))
1932 fence_state
->sync_file
= sync_file_create(fence
);
1933 if (!fence_state
->sync_file
)
1939 static int prepare_crtc_signaling(struct drm_device
*dev
,
1940 struct drm_atomic_state
*state
,
1941 struct drm_mode_atomic
*arg
,
1942 struct drm_file
*file_priv
,
1943 struct drm_out_fence_state
**fence_state
,
1944 unsigned int *num_fences
)
1946 struct drm_crtc
*crtc
;
1947 struct drm_crtc_state
*crtc_state
;
1950 if (arg
->flags
& DRM_MODE_ATOMIC_TEST_ONLY
)
1953 for_each_new_crtc_in_state(state
, crtc
, crtc_state
, i
) {
1954 s32 __user
*fence_ptr
;
1956 fence_ptr
= get_out_fence_for_crtc(crtc_state
->state
, crtc
);
1958 if (arg
->flags
& DRM_MODE_PAGE_FLIP_EVENT
|| fence_ptr
) {
1959 struct drm_pending_vblank_event
*e
;
1961 e
= create_vblank_event(dev
, arg
->user_data
);
1965 crtc_state
->event
= e
;
1968 if (arg
->flags
& DRM_MODE_PAGE_FLIP_EVENT
) {
1969 struct drm_pending_vblank_event
*e
= crtc_state
->event
;
1974 ret
= drm_event_reserve_init(dev
, file_priv
, &e
->base
,
1978 crtc_state
->event
= NULL
;
1984 struct dma_fence
*fence
;
1985 struct drm_out_fence_state
*f
;
1987 f
= krealloc(*fence_state
, sizeof(**fence_state
) *
1988 (*num_fences
+ 1), GFP_KERNEL
);
1992 memset(&f
[*num_fences
], 0, sizeof(*f
));
1994 f
[*num_fences
].out_fence_ptr
= fence_ptr
;
1997 fence
= drm_crtc_create_fence(crtc
);
2001 ret
= setup_out_fence(&f
[(*num_fences
)++], fence
);
2003 dma_fence_put(fence
);
2007 crtc_state
->event
->base
.fence
= fence
;
2014 static void complete_crtc_signaling(struct drm_device
*dev
,
2015 struct drm_atomic_state
*state
,
2016 struct drm_out_fence_state
*fence_state
,
2017 unsigned int num_fences
,
2020 struct drm_crtc
*crtc
;
2021 struct drm_crtc_state
*crtc_state
;
2025 for (i
= 0; i
< num_fences
; i
++)
2026 fd_install(fence_state
[i
].fd
,
2027 fence_state
[i
].sync_file
->file
);
2033 for_each_new_crtc_in_state(state
, crtc
, crtc_state
, i
) {
2034 struct drm_pending_vblank_event
*event
= crtc_state
->event
;
2036 * Free the allocated event. drm_atomic_helper_setup_commit
2037 * can allocate an event too, so only free it if it's ours
2038 * to prevent a double free in drm_atomic_state_clear.
2040 if (event
&& (event
->base
.fence
|| event
->base
.file_priv
)) {
2041 drm_event_cancel_free(dev
, &event
->base
);
2042 crtc_state
->event
= NULL
;
2049 for (i
= 0; i
< num_fences
; i
++) {
2050 if (fence_state
[i
].sync_file
)
2051 fput(fence_state
[i
].sync_file
->file
);
2052 if (fence_state
[i
].fd
>= 0)
2053 put_unused_fd(fence_state
[i
].fd
);
2055 /* If this fails log error to the user */
2056 if (fence_state
[i
].out_fence_ptr
&&
2057 put_user(-1, fence_state
[i
].out_fence_ptr
))
2058 DRM_DEBUG_ATOMIC("Couldn't clear out_fence_ptr\n");
2064 int drm_mode_atomic_ioctl(struct drm_device
*dev
,
2065 void *data
, struct drm_file
*file_priv
)
2067 struct drm_mode_atomic
*arg
= data
;
2068 uint32_t __user
*objs_ptr
= (uint32_t __user
*)(unsigned long)(arg
->objs_ptr
);
2069 uint32_t __user
*count_props_ptr
= (uint32_t __user
*)(unsigned long)(arg
->count_props_ptr
);
2070 uint32_t __user
*props_ptr
= (uint32_t __user
*)(unsigned long)(arg
->props_ptr
);
2071 uint64_t __user
*prop_values_ptr
= (uint64_t __user
*)(unsigned long)(arg
->prop_values_ptr
);
2072 unsigned int copied_objs
, copied_props
;
2073 struct drm_atomic_state
*state
;
2074 struct drm_modeset_acquire_ctx ctx
;
2075 struct drm_plane
*plane
;
2076 struct drm_out_fence_state
*fence_state
= NULL
;
2077 unsigned plane_mask
;
2079 unsigned int i
, j
, num_fences
= 0;
2081 /* disallow for drivers not supporting atomic: */
2082 if (!drm_core_check_feature(dev
, DRIVER_ATOMIC
))
2085 /* disallow for userspace that has not enabled atomic cap (even
2086 * though this may be a bit overkill, since legacy userspace
2087 * wouldn't know how to call this ioctl)
2089 if (!file_priv
->atomic
)
2092 if (arg
->flags
& ~DRM_MODE_ATOMIC_FLAGS
)
2098 if ((arg
->flags
& DRM_MODE_PAGE_FLIP_ASYNC
) &&
2099 !dev
->mode_config
.async_page_flip
)
2102 /* can't test and expect an event at the same time. */
2103 if ((arg
->flags
& DRM_MODE_ATOMIC_TEST_ONLY
) &&
2104 (arg
->flags
& DRM_MODE_PAGE_FLIP_EVENT
))
2107 drm_modeset_acquire_init(&ctx
, 0);
2109 state
= drm_atomic_state_alloc(dev
);
2113 state
->acquire_ctx
= &ctx
;
2114 state
->allow_modeset
= !!(arg
->flags
& DRM_MODE_ATOMIC_ALLOW_MODESET
);
2121 for (i
= 0; i
< arg
->count_objs
; i
++) {
2122 uint32_t obj_id
, count_props
;
2123 struct drm_mode_object
*obj
;
2125 if (get_user(obj_id
, objs_ptr
+ copied_objs
)) {
2130 obj
= drm_mode_object_find(dev
, obj_id
, DRM_MODE_OBJECT_ANY
);
2136 if (!obj
->properties
) {
2137 drm_mode_object_unreference(obj
);
2142 if (get_user(count_props
, count_props_ptr
+ copied_objs
)) {
2143 drm_mode_object_unreference(obj
);
2150 for (j
= 0; j
< count_props
; j
++) {
2152 uint64_t prop_value
;
2153 struct drm_property
*prop
;
2155 if (get_user(prop_id
, props_ptr
+ copied_props
)) {
2156 drm_mode_object_unreference(obj
);
2161 prop
= drm_mode_obj_find_prop_id(obj
, prop_id
);
2163 drm_mode_object_unreference(obj
);
2168 if (copy_from_user(&prop_value
,
2169 prop_values_ptr
+ copied_props
,
2170 sizeof(prop_value
))) {
2171 drm_mode_object_unreference(obj
);
2176 ret
= atomic_set_prop(state
, obj
, prop
, prop_value
);
2178 drm_mode_object_unreference(obj
);
2185 if (obj
->type
== DRM_MODE_OBJECT_PLANE
&& count_props
&&
2186 !(arg
->flags
& DRM_MODE_ATOMIC_TEST_ONLY
)) {
2187 plane
= obj_to_plane(obj
);
2188 plane_mask
|= (1 << drm_plane_index(plane
));
2189 plane
->old_fb
= plane
->fb
;
2191 drm_mode_object_unreference(obj
);
2194 ret
= prepare_crtc_signaling(dev
, state
, arg
, file_priv
, &fence_state
,
2199 if (arg
->flags
& DRM_MODE_ATOMIC_TEST_ONLY
) {
2200 ret
= drm_atomic_check_only(state
);
2201 } else if (arg
->flags
& DRM_MODE_ATOMIC_NONBLOCK
) {
2202 ret
= drm_atomic_nonblocking_commit(state
);
2204 if (unlikely(drm_debug
& DRM_UT_STATE
))
2205 drm_atomic_print_state(state
);
2207 ret
= drm_atomic_commit(state
);
2211 drm_atomic_clean_old_fb(dev
, plane_mask
, ret
);
2213 complete_crtc_signaling(dev
, state
, fence_state
, num_fences
, !ret
);
2215 if (ret
== -EDEADLK
) {
2216 drm_atomic_state_clear(state
);
2217 drm_modeset_backoff(&ctx
);
2221 drm_atomic_state_put(state
);
2223 drm_modeset_drop_locks(&ctx
);
2224 drm_modeset_acquire_fini(&ctx
);