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>
34 #include "drm_crtc_internal.h"
36 static void crtc_commit_free(struct kref *kref)
38 struct drm_crtc_commit *commit =
39 container_of(kref, struct drm_crtc_commit, ref);
44 void drm_crtc_commit_put(struct drm_crtc_commit *commit)
46 kref_put(&commit->ref, crtc_commit_free);
48 EXPORT_SYMBOL(drm_crtc_commit_put);
51 * drm_atomic_state_default_release -
52 * release memory initialized by drm_atomic_state_init
53 * @state: atomic state
55 * Free all the memory allocated by drm_atomic_state_init.
56 * This is useful for drivers that subclass the atomic state.
58 void drm_atomic_state_default_release(struct drm_atomic_state *state)
60 kfree(state->connectors);
64 EXPORT_SYMBOL(drm_atomic_state_default_release);
67 * drm_atomic_state_init - init new atomic state
69 * @state: atomic state
71 * Default implementation for filling in a new atomic state.
72 * This is useful for drivers that subclass the atomic state.
75 drm_atomic_state_init(struct drm_device *dev, struct drm_atomic_state *state)
77 /* TODO legacy paths should maybe do a better job about
78 * setting this appropriately?
80 state->allow_modeset = true;
82 state->crtcs = kcalloc(dev->mode_config.num_crtc,
83 sizeof(*state->crtcs), GFP_KERNEL);
86 state->planes = kcalloc(dev->mode_config.num_total_plane,
87 sizeof(*state->planes), GFP_KERNEL);
93 DRM_DEBUG_ATOMIC("Allocated atomic state %p\n", state);
97 drm_atomic_state_default_release(state);
100 EXPORT_SYMBOL(drm_atomic_state_init);
103 * drm_atomic_state_alloc - allocate atomic state
106 * This allocates an empty atomic state to track updates.
108 struct drm_atomic_state *
109 drm_atomic_state_alloc(struct drm_device *dev)
111 struct drm_mode_config *config = &dev->mode_config;
112 struct drm_atomic_state *state;
114 if (!config->funcs->atomic_state_alloc) {
115 state = kzalloc(sizeof(*state), GFP_KERNEL);
118 if (drm_atomic_state_init(dev, state) < 0) {
125 return config->funcs->atomic_state_alloc(dev);
127 EXPORT_SYMBOL(drm_atomic_state_alloc);
130 * drm_atomic_state_default_clear - clear base atomic state
131 * @state: atomic state
133 * Default implementation for clearing atomic state.
134 * This is useful for drivers that subclass the atomic state.
136 void drm_atomic_state_default_clear(struct drm_atomic_state *state)
138 struct drm_device *dev = state->dev;
139 struct drm_mode_config *config = &dev->mode_config;
142 DRM_DEBUG_ATOMIC("Clearing atomic state %p\n", state);
144 for (i = 0; i < state->num_connector; i++) {
145 struct drm_connector *connector = state->connectors[i].ptr;
150 connector->funcs->atomic_destroy_state(connector,
151 state->connectors[i].state);
152 state->connectors[i].ptr = NULL;
153 state->connectors[i].state = NULL;
154 drm_connector_unreference(connector);
157 for (i = 0; i < config->num_crtc; i++) {
158 struct drm_crtc *crtc = state->crtcs[i].ptr;
163 crtc->funcs->atomic_destroy_state(crtc,
164 state->crtcs[i].state);
166 if (state->crtcs[i].commit) {
167 kfree(state->crtcs[i].commit->event);
168 state->crtcs[i].commit->event = NULL;
169 drm_crtc_commit_put(state->crtcs[i].commit);
172 state->crtcs[i].commit = NULL;
173 state->crtcs[i].ptr = NULL;
174 state->crtcs[i].state = NULL;
177 for (i = 0; i < config->num_total_plane; i++) {
178 struct drm_plane *plane = state->planes[i].ptr;
183 plane->funcs->atomic_destroy_state(plane,
184 state->planes[i].state);
185 state->planes[i].ptr = NULL;
186 state->planes[i].state = NULL;
189 EXPORT_SYMBOL(drm_atomic_state_default_clear);
192 * drm_atomic_state_clear - clear state object
193 * @state: atomic state
195 * When the w/w mutex algorithm detects a deadlock we need to back off and drop
196 * all locks. So someone else could sneak in and change the current modeset
197 * configuration. Which means that all the state assembled in @state is no
198 * longer an atomic update to the current state, but to some arbitrary earlier
199 * state. Which could break assumptions the driver's ->atomic_check likely
202 * Hence we must clear all cached state and completely start over, using this
205 void drm_atomic_state_clear(struct drm_atomic_state *state)
207 struct drm_device *dev = state->dev;
208 struct drm_mode_config *config = &dev->mode_config;
210 if (config->funcs->atomic_state_clear)
211 config->funcs->atomic_state_clear(state);
213 drm_atomic_state_default_clear(state);
215 EXPORT_SYMBOL(drm_atomic_state_clear);
218 * drm_atomic_state_free - free all memory for an atomic state
219 * @state: atomic state to deallocate
221 * This frees all memory associated with an atomic state, including all the
222 * per-object state for planes, crtcs and connectors.
224 void drm_atomic_state_free(struct drm_atomic_state *state)
226 struct drm_device *dev;
227 struct drm_mode_config *config;
233 config = &dev->mode_config;
235 drm_atomic_state_clear(state);
237 DRM_DEBUG_ATOMIC("Freeing atomic state %p\n", state);
239 if (config->funcs->atomic_state_free) {
240 config->funcs->atomic_state_free(state);
242 drm_atomic_state_default_release(state);
246 EXPORT_SYMBOL(drm_atomic_state_free);
249 * drm_atomic_get_crtc_state - get crtc state
250 * @state: global atomic state object
251 * @crtc: crtc to get state object for
253 * This function returns the crtc state for the given crtc, allocating it if
254 * needed. It will also grab the relevant crtc lock to make sure that the state
259 * Either the allocated state or the error code encoded into the pointer. When
260 * the error is EDEADLK then the w/w mutex code has detected a deadlock and the
261 * entire atomic sequence must be restarted. All other errors are fatal.
263 struct drm_crtc_state *
264 drm_atomic_get_crtc_state(struct drm_atomic_state *state,
265 struct drm_crtc *crtc)
267 int ret, index = drm_crtc_index(crtc);
268 struct drm_crtc_state *crtc_state;
270 WARN_ON(!state->acquire_ctx);
272 crtc_state = drm_atomic_get_existing_crtc_state(state, crtc);
276 ret = drm_modeset_lock(&crtc->mutex, state->acquire_ctx);
280 crtc_state = crtc->funcs->atomic_duplicate_state(crtc);
282 return ERR_PTR(-ENOMEM);
284 state->crtcs[index].state = crtc_state;
285 state->crtcs[index].ptr = crtc;
286 crtc_state->state = state;
288 DRM_DEBUG_ATOMIC("Added [CRTC:%d:%s] %p state to %p\n",
289 crtc->base.id, crtc->name, crtc_state, state);
293 EXPORT_SYMBOL(drm_atomic_get_crtc_state);
296 * drm_atomic_set_mode_for_crtc - set mode for CRTC
297 * @state: the CRTC whose incoming state to update
298 * @mode: kernel-internal mode to use for the CRTC, or NULL to disable
300 * Set a mode (originating from the kernel) on the desired CRTC state. Does
301 * not change any other state properties, including enable, active, or
305 * Zero on success, error code on failure. Cannot return -EDEADLK.
307 int drm_atomic_set_mode_for_crtc(struct drm_crtc_state *state,
308 struct drm_display_mode *mode)
310 struct drm_mode_modeinfo umode;
312 /* Early return for no change. */
313 if (mode && memcmp(&state->mode, mode, sizeof(*mode)) == 0)
316 drm_property_unreference_blob(state->mode_blob);
317 state->mode_blob = NULL;
320 drm_mode_convert_to_umode(&umode, mode);
322 drm_property_create_blob(state->crtc->dev,
325 if (IS_ERR(state->mode_blob))
326 return PTR_ERR(state->mode_blob);
328 drm_mode_copy(&state->mode, mode);
329 state->enable = true;
330 DRM_DEBUG_ATOMIC("Set [MODE:%s] for CRTC state %p\n",
333 memset(&state->mode, 0, sizeof(state->mode));
334 state->enable = false;
335 DRM_DEBUG_ATOMIC("Set [NOMODE] for CRTC state %p\n",
341 EXPORT_SYMBOL(drm_atomic_set_mode_for_crtc);
344 * drm_atomic_set_mode_prop_for_crtc - set mode for CRTC
345 * @state: the CRTC whose incoming state to update
346 * @blob: pointer to blob property to use for mode
348 * Set a mode (originating from a blob property) on the desired CRTC state.
349 * This function will take a reference on the blob property for the CRTC state,
350 * and release the reference held on the state's existing mode property, if any
354 * Zero on success, error code on failure. Cannot return -EDEADLK.
356 int drm_atomic_set_mode_prop_for_crtc(struct drm_crtc_state *state,
357 struct drm_property_blob *blob)
359 if (blob == state->mode_blob)
362 drm_property_unreference_blob(state->mode_blob);
363 state->mode_blob = NULL;
365 memset(&state->mode, 0, sizeof(state->mode));
368 if (blob->length != sizeof(struct drm_mode_modeinfo) ||
369 drm_mode_convert_umode(&state->mode,
370 (const struct drm_mode_modeinfo *)
374 state->mode_blob = drm_property_reference_blob(blob);
375 state->enable = true;
376 DRM_DEBUG_ATOMIC("Set [MODE:%s] for CRTC state %p\n",
377 state->mode.name, state);
379 state->enable = false;
380 DRM_DEBUG_ATOMIC("Set [NOMODE] for CRTC state %p\n",
386 EXPORT_SYMBOL(drm_atomic_set_mode_prop_for_crtc);
389 * drm_atomic_replace_property_blob - replace a blob property
390 * @blob: a pointer to the member blob to be replaced
391 * @new_blob: the new blob to replace with
392 * @replaced: whether the blob has been replaced
395 * Zero on success, error code on failure
398 drm_atomic_replace_property_blob(struct drm_property_blob **blob,
399 struct drm_property_blob *new_blob,
402 struct drm_property_blob *old_blob = *blob;
404 if (old_blob == new_blob)
408 drm_property_unreference_blob(old_blob);
410 drm_property_reference_blob(new_blob);
418 drm_atomic_replace_property_blob_from_id(struct drm_crtc *crtc,
419 struct drm_property_blob **blob,
421 ssize_t expected_size,
424 struct drm_device *dev = crtc->dev;
425 struct drm_property_blob *new_blob = NULL;
428 new_blob = drm_property_lookup_blob(dev, blob_id);
429 if (new_blob == NULL)
431 if (expected_size > 0 && expected_size != new_blob->length)
435 drm_atomic_replace_property_blob(blob, new_blob, replaced);
441 * drm_atomic_crtc_set_property - set property on CRTC
442 * @crtc: the drm CRTC to set a property on
443 * @state: the state object to update with the new property value
444 * @property: the property to set
445 * @val: the new property value
447 * Use this instead of calling crtc->atomic_set_property directly.
448 * This function handles generic/core properties and calls out to
449 * driver's ->atomic_set_property() for driver properties. To ensure
450 * consistent behavior you must call this function rather than the
451 * driver hook directly.
454 * Zero on success, error code on failure
456 int drm_atomic_crtc_set_property(struct drm_crtc *crtc,
457 struct drm_crtc_state *state, struct drm_property *property,
460 struct drm_device *dev = crtc->dev;
461 struct drm_mode_config *config = &dev->mode_config;
462 bool replaced = false;
465 if (property == config->prop_active)
467 else if (property == config->prop_mode_id) {
468 struct drm_property_blob *mode =
469 drm_property_lookup_blob(dev, val);
470 ret = drm_atomic_set_mode_prop_for_crtc(state, mode);
471 drm_property_unreference_blob(mode);
473 } else if (property == config->degamma_lut_property) {
474 ret = drm_atomic_replace_property_blob_from_id(crtc,
479 state->color_mgmt_changed = replaced;
481 } else if (property == config->ctm_property) {
482 ret = drm_atomic_replace_property_blob_from_id(crtc,
485 sizeof(struct drm_color_ctm),
487 state->color_mgmt_changed = replaced;
489 } else if (property == config->gamma_lut_property) {
490 ret = drm_atomic_replace_property_blob_from_id(crtc,
495 state->color_mgmt_changed = replaced;
497 } else if (crtc->funcs->atomic_set_property)
498 return crtc->funcs->atomic_set_property(crtc, state, property, val);
504 EXPORT_SYMBOL(drm_atomic_crtc_set_property);
507 * drm_atomic_crtc_get_property - get property value from CRTC state
508 * @crtc: the drm CRTC to set a property on
509 * @state: the state object to get the property value from
510 * @property: the property to set
511 * @val: return location for the property value
513 * This function handles generic/core properties and calls out to
514 * driver's ->atomic_get_property() for driver properties. To ensure
515 * consistent behavior you must call this function rather than the
516 * driver hook directly.
519 * Zero on success, error code on failure
522 drm_atomic_crtc_get_property(struct drm_crtc *crtc,
523 const struct drm_crtc_state *state,
524 struct drm_property *property, uint64_t *val)
526 struct drm_device *dev = crtc->dev;
527 struct drm_mode_config *config = &dev->mode_config;
529 if (property == config->prop_active)
530 *val = state->active;
531 else if (property == config->prop_mode_id)
532 *val = (state->mode_blob) ? state->mode_blob->base.id : 0;
533 else if (property == config->degamma_lut_property)
534 *val = (state->degamma_lut) ? state->degamma_lut->base.id : 0;
535 else if (property == config->ctm_property)
536 *val = (state->ctm) ? state->ctm->base.id : 0;
537 else if (property == config->gamma_lut_property)
538 *val = (state->gamma_lut) ? state->gamma_lut->base.id : 0;
539 else if (crtc->funcs->atomic_get_property)
540 return crtc->funcs->atomic_get_property(crtc, state, property, val);
548 * drm_atomic_crtc_check - check crtc state
549 * @crtc: crtc to check
550 * @state: crtc state to check
552 * Provides core sanity checks for crtc state.
555 * Zero on success, error code on failure
557 static int drm_atomic_crtc_check(struct drm_crtc *crtc,
558 struct drm_crtc_state *state)
560 /* NOTE: we explicitly don't enforce constraints such as primary
561 * layer covering entire screen, since that is something we want
562 * to allow (on hw that supports it). For hw that does not, it
563 * should be checked in driver's crtc->atomic_check() vfunc.
565 * TODO: Add generic modeset state checks once we support those.
568 if (state->active && !state->enable) {
569 DRM_DEBUG_ATOMIC("[CRTC:%d:%s] active without enabled\n",
570 crtc->base.id, crtc->name);
574 /* The state->enable vs. state->mode_blob checks can be WARN_ON,
575 * as this is a kernel-internal detail that userspace should never
576 * be able to trigger. */
577 if (drm_core_check_feature(crtc->dev, DRIVER_ATOMIC) &&
578 WARN_ON(state->enable && !state->mode_blob)) {
579 DRM_DEBUG_ATOMIC("[CRTC:%d:%s] enabled without mode blob\n",
580 crtc->base.id, crtc->name);
584 if (drm_core_check_feature(crtc->dev, DRIVER_ATOMIC) &&
585 WARN_ON(!state->enable && state->mode_blob)) {
586 DRM_DEBUG_ATOMIC("[CRTC:%d:%s] disabled with mode blob\n",
587 crtc->base.id, crtc->name);
592 * Reject event generation for when a CRTC is off and stays off.
593 * It wouldn't be hard to implement this, but userspace has a track
594 * record of happily burning through 100% cpu (or worse, crash) when the
595 * display pipe is suspended. To avoid all that fun just reject updates
596 * that ask for events since likely that indicates a bug in the
597 * compositor's drawing loop. This is consistent with the vblank IOCTL
598 * and legacy page_flip IOCTL which also reject service on a disabled
601 if (state->event && !state->active && !crtc->state->active) {
602 DRM_DEBUG_ATOMIC("[CRTC:%d] requesting event but off\n",
611 * drm_atomic_get_plane_state - get plane state
612 * @state: global atomic state object
613 * @plane: plane to get state object for
615 * This function returns the plane state for the given plane, allocating it if
616 * needed. It will also grab the relevant plane lock to make sure that the state
621 * Either the allocated state or the error code encoded into the pointer. When
622 * the error is EDEADLK then the w/w mutex code has detected a deadlock and the
623 * entire atomic sequence must be restarted. All other errors are fatal.
625 struct drm_plane_state *
626 drm_atomic_get_plane_state(struct drm_atomic_state *state,
627 struct drm_plane *plane)
629 int ret, index = drm_plane_index(plane);
630 struct drm_plane_state *plane_state;
632 WARN_ON(!state->acquire_ctx);
634 plane_state = drm_atomic_get_existing_plane_state(state, plane);
638 ret = drm_modeset_lock(&plane->mutex, state->acquire_ctx);
642 plane_state = plane->funcs->atomic_duplicate_state(plane);
644 return ERR_PTR(-ENOMEM);
646 state->planes[index].state = plane_state;
647 state->planes[index].ptr = plane;
648 plane_state->state = state;
650 DRM_DEBUG_ATOMIC("Added [PLANE:%d:%s] %p state to %p\n",
651 plane->base.id, plane->name, plane_state, state);
653 if (plane_state->crtc) {
654 struct drm_crtc_state *crtc_state;
656 crtc_state = drm_atomic_get_crtc_state(state,
658 if (IS_ERR(crtc_state))
659 return ERR_CAST(crtc_state);
664 EXPORT_SYMBOL(drm_atomic_get_plane_state);
667 * drm_atomic_plane_set_property - set property on plane
668 * @plane: the drm plane to set a property on
669 * @state: the state object to update with the new property value
670 * @property: the property to set
671 * @val: the new property value
673 * Use this instead of calling plane->atomic_set_property directly.
674 * This function handles generic/core properties and calls out to
675 * driver's ->atomic_set_property() for driver properties. To ensure
676 * consistent behavior you must call this function rather than the
677 * driver hook directly.
680 * Zero on success, error code on failure
682 int drm_atomic_plane_set_property(struct drm_plane *plane,
683 struct drm_plane_state *state, struct drm_property *property,
686 struct drm_device *dev = plane->dev;
687 struct drm_mode_config *config = &dev->mode_config;
689 if (property == config->prop_fb_id) {
690 struct drm_framebuffer *fb = drm_framebuffer_lookup(dev, val);
691 drm_atomic_set_fb_for_plane(state, fb);
693 drm_framebuffer_unreference(fb);
694 } else if (property == config->prop_crtc_id) {
695 struct drm_crtc *crtc = drm_crtc_find(dev, val);
696 return drm_atomic_set_crtc_for_plane(state, crtc);
697 } else if (property == config->prop_crtc_x) {
698 state->crtc_x = U642I64(val);
699 } else if (property == config->prop_crtc_y) {
700 state->crtc_y = U642I64(val);
701 } else if (property == config->prop_crtc_w) {
703 } else if (property == config->prop_crtc_h) {
705 } else if (property == config->prop_src_x) {
707 } else if (property == config->prop_src_y) {
709 } else if (property == config->prop_src_w) {
711 } else if (property == config->prop_src_h) {
713 } else if (property == config->rotation_property) {
714 state->rotation = val;
715 } else if (plane->funcs->atomic_set_property) {
716 return plane->funcs->atomic_set_property(plane, state,
724 EXPORT_SYMBOL(drm_atomic_plane_set_property);
727 * drm_atomic_plane_get_property - get property value from plane state
728 * @plane: the drm plane to set a property on
729 * @state: the state object to get the property value from
730 * @property: the property to set
731 * @val: return location for the property value
733 * This function handles generic/core properties and calls out to
734 * driver's ->atomic_get_property() for driver properties. To ensure
735 * consistent behavior you must call this function rather than the
736 * driver hook directly.
739 * Zero on success, error code on failure
742 drm_atomic_plane_get_property(struct drm_plane *plane,
743 const struct drm_plane_state *state,
744 struct drm_property *property, uint64_t *val)
746 struct drm_device *dev = plane->dev;
747 struct drm_mode_config *config = &dev->mode_config;
749 if (property == config->prop_fb_id) {
750 *val = (state->fb) ? state->fb->base.id : 0;
751 } else if (property == config->prop_crtc_id) {
752 *val = (state->crtc) ? state->crtc->base.id : 0;
753 } else if (property == config->prop_crtc_x) {
754 *val = I642U64(state->crtc_x);
755 } else if (property == config->prop_crtc_y) {
756 *val = I642U64(state->crtc_y);
757 } else if (property == config->prop_crtc_w) {
758 *val = state->crtc_w;
759 } else if (property == config->prop_crtc_h) {
760 *val = state->crtc_h;
761 } else if (property == config->prop_src_x) {
763 } else if (property == config->prop_src_y) {
765 } else if (property == config->prop_src_w) {
767 } else if (property == config->prop_src_h) {
769 } else if (property == config->rotation_property) {
770 *val = state->rotation;
771 } else if (plane->funcs->atomic_get_property) {
772 return plane->funcs->atomic_get_property(plane, state, property, val);
781 plane_switching_crtc(struct drm_atomic_state *state,
782 struct drm_plane *plane,
783 struct drm_plane_state *plane_state)
785 if (!plane->state->crtc || !plane_state->crtc)
788 if (plane->state->crtc == plane_state->crtc)
791 /* This could be refined, but currently there's no helper or driver code
792 * to implement direct switching of active planes nor userspace to take
793 * advantage of more direct plane switching without the intermediate
800 * drm_atomic_plane_check - check plane state
801 * @plane: plane to check
802 * @state: plane state to check
804 * Provides core sanity checks for plane state.
807 * Zero on success, error code on failure
809 static int drm_atomic_plane_check(struct drm_plane *plane,
810 struct drm_plane_state *state)
812 unsigned int fb_width, fb_height;
815 /* either *both* CRTC and FB must be set, or neither */
816 if (WARN_ON(state->crtc && !state->fb)) {
817 DRM_DEBUG_ATOMIC("CRTC set but no FB\n");
819 } else if (WARN_ON(state->fb && !state->crtc)) {
820 DRM_DEBUG_ATOMIC("FB set but no CRTC\n");
824 /* if disabled, we don't care about the rest of the state: */
828 /* Check whether this plane is usable on this CRTC */
829 if (!(plane->possible_crtcs & drm_crtc_mask(state->crtc))) {
830 DRM_DEBUG_ATOMIC("Invalid crtc for plane\n");
834 /* Check whether this plane supports the fb pixel format. */
835 ret = drm_plane_check_pixel_format(plane, state->fb->pixel_format);
837 DRM_DEBUG_ATOMIC("Invalid pixel format %s\n",
838 drm_get_format_name(state->fb->pixel_format));
842 /* Give drivers some help against integer overflows */
843 if (state->crtc_w > INT_MAX ||
844 state->crtc_x > INT_MAX - (int32_t) state->crtc_w ||
845 state->crtc_h > INT_MAX ||
846 state->crtc_y > INT_MAX - (int32_t) state->crtc_h) {
847 DRM_DEBUG_ATOMIC("Invalid CRTC coordinates %ux%u+%d+%d\n",
848 state->crtc_w, state->crtc_h,
849 state->crtc_x, state->crtc_y);
853 fb_width = state->fb->width << 16;
854 fb_height = state->fb->height << 16;
856 /* Make sure source coordinates are inside the fb. */
857 if (state->src_w > fb_width ||
858 state->src_x > fb_width - state->src_w ||
859 state->src_h > fb_height ||
860 state->src_y > fb_height - state->src_h) {
861 DRM_DEBUG_ATOMIC("Invalid source coordinates "
862 "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
863 state->src_w >> 16, ((state->src_w & 0xffff) * 15625) >> 10,
864 state->src_h >> 16, ((state->src_h & 0xffff) * 15625) >> 10,
865 state->src_x >> 16, ((state->src_x & 0xffff) * 15625) >> 10,
866 state->src_y >> 16, ((state->src_y & 0xffff) * 15625) >> 10);
870 if (plane_switching_crtc(state->state, plane, state)) {
871 DRM_DEBUG_ATOMIC("[PLANE:%d:%s] switching CRTC directly\n",
872 plane->base.id, plane->name);
880 * drm_atomic_get_connector_state - get connector state
881 * @state: global atomic state object
882 * @connector: connector to get state object for
884 * This function returns the connector state for the given connector,
885 * allocating it if needed. It will also grab the relevant connector lock to
886 * make sure that the state is consistent.
890 * Either the allocated state or the error code encoded into the pointer. When
891 * the error is EDEADLK then the w/w mutex code has detected a deadlock and the
892 * entire atomic sequence must be restarted. All other errors are fatal.
894 struct drm_connector_state *
895 drm_atomic_get_connector_state(struct drm_atomic_state *state,
896 struct drm_connector *connector)
899 struct drm_mode_config *config = &connector->dev->mode_config;
900 struct drm_connector_state *connector_state;
902 WARN_ON(!state->acquire_ctx);
904 ret = drm_modeset_lock(&config->connection_mutex, state->acquire_ctx);
908 index = drm_connector_index(connector);
910 if (index >= state->num_connector) {
911 struct __drm_connnectors_state *c;
912 int alloc = max(index + 1, config->num_connector);
914 c = krealloc(state->connectors, alloc * sizeof(*state->connectors), GFP_KERNEL);
916 return ERR_PTR(-ENOMEM);
918 state->connectors = c;
919 memset(&state->connectors[state->num_connector], 0,
920 sizeof(*state->connectors) * (alloc - state->num_connector));
922 state->num_connector = alloc;
925 if (state->connectors[index].state)
926 return state->connectors[index].state;
928 connector_state = connector->funcs->atomic_duplicate_state(connector);
929 if (!connector_state)
930 return ERR_PTR(-ENOMEM);
932 drm_connector_reference(connector);
933 state->connectors[index].state = connector_state;
934 state->connectors[index].ptr = connector;
935 connector_state->state = state;
937 DRM_DEBUG_ATOMIC("Added [CONNECTOR:%d] %p state to %p\n",
938 connector->base.id, connector_state, state);
940 if (connector_state->crtc) {
941 struct drm_crtc_state *crtc_state;
943 crtc_state = drm_atomic_get_crtc_state(state,
944 connector_state->crtc);
945 if (IS_ERR(crtc_state))
946 return ERR_CAST(crtc_state);
949 return connector_state;
951 EXPORT_SYMBOL(drm_atomic_get_connector_state);
954 * drm_atomic_connector_set_property - set property on connector.
955 * @connector: the drm connector to set a property on
956 * @state: the state object to update with the new property value
957 * @property: the property to set
958 * @val: the new property value
960 * Use this instead of calling connector->atomic_set_property directly.
961 * This function handles generic/core properties and calls out to
962 * driver's ->atomic_set_property() for driver properties. To ensure
963 * consistent behavior you must call this function rather than the
964 * driver hook directly.
967 * Zero on success, error code on failure
969 int drm_atomic_connector_set_property(struct drm_connector *connector,
970 struct drm_connector_state *state, struct drm_property *property,
973 struct drm_device *dev = connector->dev;
974 struct drm_mode_config *config = &dev->mode_config;
976 if (property == config->prop_crtc_id) {
977 struct drm_crtc *crtc = drm_crtc_find(dev, val);
978 return drm_atomic_set_crtc_for_connector(state, crtc);
979 } else if (property == config->dpms_property) {
980 /* setting DPMS property requires special handling, which
981 * is done in legacy setprop path for us. Disallow (for
982 * now?) atomic writes to DPMS property:
985 } else if (connector->funcs->atomic_set_property) {
986 return connector->funcs->atomic_set_property(connector,
987 state, property, val);
992 EXPORT_SYMBOL(drm_atomic_connector_set_property);
995 * drm_atomic_connector_get_property - get property value from connector state
996 * @connector: the drm connector to set a property on
997 * @state: the state object to get the property value from
998 * @property: the property to set
999 * @val: return location for the property value
1001 * This function handles generic/core properties and calls out to
1002 * driver's ->atomic_get_property() for driver properties. To ensure
1003 * consistent behavior you must call this function rather than the
1004 * driver hook directly.
1007 * Zero on success, error code on failure
1010 drm_atomic_connector_get_property(struct drm_connector *connector,
1011 const struct drm_connector_state *state,
1012 struct drm_property *property, uint64_t *val)
1014 struct drm_device *dev = connector->dev;
1015 struct drm_mode_config *config = &dev->mode_config;
1017 if (property == config->prop_crtc_id) {
1018 *val = (state->crtc) ? state->crtc->base.id : 0;
1019 } else if (property == config->dpms_property) {
1020 *val = connector->dpms;
1021 } else if (connector->funcs->atomic_get_property) {
1022 return connector->funcs->atomic_get_property(connector,
1023 state, property, val);
1031 int drm_atomic_get_property(struct drm_mode_object *obj,
1032 struct drm_property *property, uint64_t *val)
1034 struct drm_device *dev = property->dev;
1037 switch (obj->type) {
1038 case DRM_MODE_OBJECT_CONNECTOR: {
1039 struct drm_connector *connector = obj_to_connector(obj);
1040 WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex));
1041 ret = drm_atomic_connector_get_property(connector,
1042 connector->state, property, val);
1045 case DRM_MODE_OBJECT_CRTC: {
1046 struct drm_crtc *crtc = obj_to_crtc(obj);
1047 WARN_ON(!drm_modeset_is_locked(&crtc->mutex));
1048 ret = drm_atomic_crtc_get_property(crtc,
1049 crtc->state, property, val);
1052 case DRM_MODE_OBJECT_PLANE: {
1053 struct drm_plane *plane = obj_to_plane(obj);
1054 WARN_ON(!drm_modeset_is_locked(&plane->mutex));
1055 ret = drm_atomic_plane_get_property(plane,
1056 plane->state, property, val);
1068 * drm_atomic_set_crtc_for_plane - set crtc for plane
1069 * @plane_state: the plane whose incoming state to update
1070 * @crtc: crtc to use for the plane
1072 * Changing the assigned crtc for a plane requires us to grab the lock and state
1073 * for the new crtc, as needed. This function takes care of all these details
1074 * besides updating the pointer in the state object itself.
1077 * 0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK
1078 * then the w/w mutex code has detected a deadlock and the entire atomic
1079 * sequence must be restarted. All other errors are fatal.
1082 drm_atomic_set_crtc_for_plane(struct drm_plane_state *plane_state,
1083 struct drm_crtc *crtc)
1085 struct drm_plane *plane = plane_state->plane;
1086 struct drm_crtc_state *crtc_state;
1088 if (plane_state->crtc) {
1089 crtc_state = drm_atomic_get_crtc_state(plane_state->state,
1091 if (WARN_ON(IS_ERR(crtc_state)))
1092 return PTR_ERR(crtc_state);
1094 crtc_state->plane_mask &= ~(1 << drm_plane_index(plane));
1097 plane_state->crtc = crtc;
1100 crtc_state = drm_atomic_get_crtc_state(plane_state->state,
1102 if (IS_ERR(crtc_state))
1103 return PTR_ERR(crtc_state);
1104 crtc_state->plane_mask |= (1 << drm_plane_index(plane));
1108 DRM_DEBUG_ATOMIC("Link plane state %p to [CRTC:%d:%s]\n",
1109 plane_state, crtc->base.id, crtc->name);
1111 DRM_DEBUG_ATOMIC("Link plane state %p to [NOCRTC]\n",
1116 EXPORT_SYMBOL(drm_atomic_set_crtc_for_plane);
1119 * drm_atomic_set_fb_for_plane - set framebuffer for plane
1120 * @plane_state: atomic state object for the plane
1121 * @fb: fb to use for the plane
1123 * Changing the assigned framebuffer for a plane requires us to grab a reference
1124 * to the new fb and drop the reference to the old fb, if there is one. This
1125 * function takes care of all these details besides updating the pointer in the
1126 * state object itself.
1129 drm_atomic_set_fb_for_plane(struct drm_plane_state *plane_state,
1130 struct drm_framebuffer *fb)
1132 if (plane_state->fb)
1133 drm_framebuffer_unreference(plane_state->fb);
1135 drm_framebuffer_reference(fb);
1136 plane_state->fb = fb;
1139 DRM_DEBUG_ATOMIC("Set [FB:%d] for plane state %p\n",
1140 fb->base.id, plane_state);
1142 DRM_DEBUG_ATOMIC("Set [NOFB] for plane state %p\n",
1145 EXPORT_SYMBOL(drm_atomic_set_fb_for_plane);
1148 * drm_atomic_set_crtc_for_connector - set crtc for connector
1149 * @conn_state: atomic state object for the connector
1150 * @crtc: crtc to use for the connector
1152 * Changing the assigned crtc for a connector requires us to grab the lock and
1153 * state for the new crtc, as needed. This function takes care of all these
1154 * details besides updating the pointer in the state object itself.
1157 * 0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK
1158 * then the w/w mutex code has detected a deadlock and the entire atomic
1159 * sequence must be restarted. All other errors are fatal.
1162 drm_atomic_set_crtc_for_connector(struct drm_connector_state *conn_state,
1163 struct drm_crtc *crtc)
1165 struct drm_crtc_state *crtc_state;
1167 if (conn_state->crtc == crtc)
1170 if (conn_state->crtc) {
1171 crtc_state = drm_atomic_get_existing_crtc_state(conn_state->state,
1174 crtc_state->connector_mask &=
1175 ~(1 << drm_connector_index(conn_state->connector));
1177 drm_connector_unreference(conn_state->connector);
1178 conn_state->crtc = NULL;
1182 crtc_state = drm_atomic_get_crtc_state(conn_state->state, crtc);
1183 if (IS_ERR(crtc_state))
1184 return PTR_ERR(crtc_state);
1186 crtc_state->connector_mask |=
1187 1 << drm_connector_index(conn_state->connector);
1189 drm_connector_reference(conn_state->connector);
1190 conn_state->crtc = crtc;
1192 DRM_DEBUG_ATOMIC("Link connector state %p to [CRTC:%d:%s]\n",
1193 conn_state, crtc->base.id, crtc->name);
1195 DRM_DEBUG_ATOMIC("Link connector state %p to [NOCRTC]\n",
1201 EXPORT_SYMBOL(drm_atomic_set_crtc_for_connector);
1204 * drm_atomic_add_affected_connectors - add connectors for crtc
1205 * @state: atomic state
1208 * This function walks the current configuration and adds all connectors
1209 * currently using @crtc to the atomic configuration @state. Note that this
1210 * function must acquire the connection mutex. This can potentially cause
1211 * unneeded seralization if the update is just for the planes on one crtc. Hence
1212 * drivers and helpers should only call this when really needed (e.g. when a
1213 * full modeset needs to happen due to some change).
1216 * 0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK
1217 * then the w/w mutex code has detected a deadlock and the entire atomic
1218 * sequence must be restarted. All other errors are fatal.
1221 drm_atomic_add_affected_connectors(struct drm_atomic_state *state,
1222 struct drm_crtc *crtc)
1224 struct drm_mode_config *config = &state->dev->mode_config;
1225 struct drm_connector *connector;
1226 struct drm_connector_state *conn_state;
1229 ret = drm_modeset_lock(&config->connection_mutex, state->acquire_ctx);
1233 DRM_DEBUG_ATOMIC("Adding all current connectors for [CRTC:%d:%s] to %p\n",
1234 crtc->base.id, crtc->name, state);
1237 * Changed connectors are already in @state, so only need to look at the
1238 * current configuration.
1240 drm_for_each_connector(connector, state->dev) {
1241 if (connector->state->crtc != crtc)
1244 conn_state = drm_atomic_get_connector_state(state, connector);
1245 if (IS_ERR(conn_state))
1246 return PTR_ERR(conn_state);
1251 EXPORT_SYMBOL(drm_atomic_add_affected_connectors);
1254 * drm_atomic_add_affected_planes - add planes for crtc
1255 * @state: atomic state
1258 * This function walks the current configuration and adds all planes
1259 * currently used by @crtc to the atomic configuration @state. This is useful
1260 * when an atomic commit also needs to check all currently enabled plane on
1261 * @crtc, e.g. when changing the mode. It's also useful when re-enabling a CRTC
1262 * to avoid special code to force-enable all planes.
1264 * Since acquiring a plane state will always also acquire the w/w mutex of the
1265 * current CRTC for that plane (if there is any) adding all the plane states for
1266 * a CRTC will not reduce parallism of atomic updates.
1269 * 0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK
1270 * then the w/w mutex code has detected a deadlock and the entire atomic
1271 * sequence must be restarted. All other errors are fatal.
1274 drm_atomic_add_affected_planes(struct drm_atomic_state *state,
1275 struct drm_crtc *crtc)
1277 struct drm_plane *plane;
1279 WARN_ON(!drm_atomic_get_existing_crtc_state(state, crtc));
1281 drm_for_each_plane_mask(plane, state->dev, crtc->state->plane_mask) {
1282 struct drm_plane_state *plane_state =
1283 drm_atomic_get_plane_state(state, plane);
1285 if (IS_ERR(plane_state))
1286 return PTR_ERR(plane_state);
1290 EXPORT_SYMBOL(drm_atomic_add_affected_planes);
1293 * drm_atomic_legacy_backoff - locking backoff for legacy ioctls
1294 * @state: atomic state
1296 * This function should be used by legacy entry points which don't understand
1297 * -EDEADLK semantics. For simplicity this one will grab all modeset locks after
1298 * the slowpath completed.
1300 void drm_atomic_legacy_backoff(struct drm_atomic_state *state)
1305 drm_modeset_backoff(state->acquire_ctx);
1307 ret = drm_modeset_lock_all_ctx(state->dev, state->acquire_ctx);
1311 EXPORT_SYMBOL(drm_atomic_legacy_backoff);
1314 * drm_atomic_check_only - check whether a given config would work
1315 * @state: atomic configuration to check
1317 * Note that this function can return -EDEADLK if the driver needed to acquire
1318 * more locks but encountered a deadlock. The caller must then do the usual w/w
1319 * backoff dance and restart. All other errors are fatal.
1322 * 0 on success, negative error code on failure.
1324 int drm_atomic_check_only(struct drm_atomic_state *state)
1326 struct drm_device *dev = state->dev;
1327 struct drm_mode_config *config = &dev->mode_config;
1328 struct drm_plane *plane;
1329 struct drm_plane_state *plane_state;
1330 struct drm_crtc *crtc;
1331 struct drm_crtc_state *crtc_state;
1334 DRM_DEBUG_ATOMIC("checking %p\n", state);
1336 for_each_plane_in_state(state, plane, plane_state, i) {
1337 ret = drm_atomic_plane_check(plane, plane_state);
1339 DRM_DEBUG_ATOMIC("[PLANE:%d:%s] atomic core check failed\n",
1340 plane->base.id, plane->name);
1345 for_each_crtc_in_state(state, crtc, crtc_state, i) {
1346 ret = drm_atomic_crtc_check(crtc, crtc_state);
1348 DRM_DEBUG_ATOMIC("[CRTC:%d:%s] atomic core check failed\n",
1349 crtc->base.id, crtc->name);
1354 if (config->funcs->atomic_check)
1355 ret = config->funcs->atomic_check(state->dev, state);
1357 if (!state->allow_modeset) {
1358 for_each_crtc_in_state(state, crtc, crtc_state, i) {
1359 if (drm_atomic_crtc_needs_modeset(crtc_state)) {
1360 DRM_DEBUG_ATOMIC("[CRTC:%d:%s] requires full modeset\n",
1361 crtc->base.id, crtc->name);
1369 EXPORT_SYMBOL(drm_atomic_check_only);
1372 * drm_atomic_commit - commit configuration atomically
1373 * @state: atomic configuration to check
1375 * Note that this function can return -EDEADLK if the driver needed to acquire
1376 * more locks but encountered a deadlock. The caller must then do the usual w/w
1377 * backoff dance and restart. All other errors are fatal.
1379 * Also note that on successful execution ownership of @state is transferred
1380 * from the caller of this function to the function itself. The caller must not
1381 * free or in any other way access @state. If the function fails then the caller
1382 * must clean up @state itself.
1385 * 0 on success, negative error code on failure.
1387 int drm_atomic_commit(struct drm_atomic_state *state)
1389 struct drm_mode_config *config = &state->dev->mode_config;
1392 ret = drm_atomic_check_only(state);
1396 DRM_DEBUG_ATOMIC("commiting %p\n", state);
1398 return config->funcs->atomic_commit(state->dev, state, false);
1400 EXPORT_SYMBOL(drm_atomic_commit);
1403 * drm_atomic_nonblocking_commit - atomic&nonblocking configuration commit
1404 * @state: atomic configuration to check
1406 * Note that this function can return -EDEADLK if the driver needed to acquire
1407 * more locks but encountered a deadlock. The caller must then do the usual w/w
1408 * backoff dance and restart. All other errors are fatal.
1410 * Also note that on successful execution ownership of @state is transferred
1411 * from the caller of this function to the function itself. The caller must not
1412 * free or in any other way access @state. If the function fails then the caller
1413 * must clean up @state itself.
1416 * 0 on success, negative error code on failure.
1418 int drm_atomic_nonblocking_commit(struct drm_atomic_state *state)
1420 struct drm_mode_config *config = &state->dev->mode_config;
1423 ret = drm_atomic_check_only(state);
1427 DRM_DEBUG_ATOMIC("commiting %p nonblocking\n", state);
1429 return config->funcs->atomic_commit(state->dev, state, true);
1431 EXPORT_SYMBOL(drm_atomic_nonblocking_commit);
1434 * The big monstor ioctl
1437 static struct drm_pending_vblank_event *create_vblank_event(
1438 struct drm_device *dev, struct drm_file *file_priv,
1439 struct fence *fence, uint64_t user_data)
1441 struct drm_pending_vblank_event *e = NULL;
1444 e = kzalloc(sizeof *e, GFP_KERNEL);
1448 e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
1449 e->event.base.length = sizeof(e->event);
1450 e->event.user_data = user_data;
1453 ret = drm_event_reserve_init(dev, file_priv, &e->base,
1461 e->base.fence = fence;
1466 static int atomic_set_prop(struct drm_atomic_state *state,
1467 struct drm_mode_object *obj, struct drm_property *prop,
1468 uint64_t prop_value)
1470 struct drm_mode_object *ref;
1473 if (!drm_property_change_valid_get(prop, prop_value, &ref))
1476 switch (obj->type) {
1477 case DRM_MODE_OBJECT_CONNECTOR: {
1478 struct drm_connector *connector = obj_to_connector(obj);
1479 struct drm_connector_state *connector_state;
1481 connector_state = drm_atomic_get_connector_state(state, connector);
1482 if (IS_ERR(connector_state)) {
1483 ret = PTR_ERR(connector_state);
1487 ret = drm_atomic_connector_set_property(connector,
1488 connector_state, prop, prop_value);
1491 case DRM_MODE_OBJECT_CRTC: {
1492 struct drm_crtc *crtc = obj_to_crtc(obj);
1493 struct drm_crtc_state *crtc_state;
1495 crtc_state = drm_atomic_get_crtc_state(state, crtc);
1496 if (IS_ERR(crtc_state)) {
1497 ret = PTR_ERR(crtc_state);
1501 ret = drm_atomic_crtc_set_property(crtc,
1502 crtc_state, prop, prop_value);
1505 case DRM_MODE_OBJECT_PLANE: {
1506 struct drm_plane *plane = obj_to_plane(obj);
1507 struct drm_plane_state *plane_state;
1509 plane_state = drm_atomic_get_plane_state(state, plane);
1510 if (IS_ERR(plane_state)) {
1511 ret = PTR_ERR(plane_state);
1515 ret = drm_atomic_plane_set_property(plane,
1516 plane_state, prop, prop_value);
1524 drm_property_change_valid_put(prop, ref);
1529 * drm_atomic_clean_old_fb -- Unset old_fb pointers and set plane->fb pointers.
1531 * @dev: drm device to check.
1532 * @plane_mask: plane mask for planes that were updated.
1533 * @ret: return value, can be -EDEADLK for a retry.
1535 * Before doing an update plane->old_fb is set to plane->fb,
1536 * but before dropping the locks old_fb needs to be set to NULL
1537 * and plane->fb updated. This is a common operation for each
1538 * atomic update, so this call is split off as a helper.
1540 void drm_atomic_clean_old_fb(struct drm_device *dev,
1541 unsigned plane_mask,
1544 struct drm_plane *plane;
1546 /* if succeeded, fixup legacy plane crtc/fb ptrs before dropping
1547 * locks (ie. while it is still safe to deref plane->state). We
1548 * need to do this here because the driver entry points cannot
1549 * distinguish between legacy and atomic ioctls.
1551 drm_for_each_plane_mask(plane, dev, plane_mask) {
1553 struct drm_framebuffer *new_fb = plane->state->fb;
1555 drm_framebuffer_reference(new_fb);
1557 plane->crtc = plane->state->crtc;
1560 drm_framebuffer_unreference(plane->old_fb);
1562 plane->old_fb = NULL;
1565 EXPORT_SYMBOL(drm_atomic_clean_old_fb);
1567 int drm_mode_atomic_ioctl(struct drm_device *dev,
1568 void *data, struct drm_file *file_priv)
1570 struct drm_mode_atomic *arg = data;
1571 uint32_t __user *objs_ptr = (uint32_t __user *)(unsigned long)(arg->objs_ptr);
1572 uint32_t __user *count_props_ptr = (uint32_t __user *)(unsigned long)(arg->count_props_ptr);
1573 uint32_t __user *props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr);
1574 uint64_t __user *prop_values_ptr = (uint64_t __user *)(unsigned long)(arg->prop_values_ptr);
1575 unsigned int copied_objs, copied_props;
1576 struct drm_atomic_state *state;
1577 struct drm_modeset_acquire_ctx ctx;
1578 struct drm_plane *plane;
1579 struct drm_crtc *crtc;
1580 struct drm_crtc_state *crtc_state;
1581 unsigned plane_mask;
1585 /* disallow for drivers not supporting atomic: */
1586 if (!drm_core_check_feature(dev, DRIVER_ATOMIC))
1589 /* disallow for userspace that has not enabled atomic cap (even
1590 * though this may be a bit overkill, since legacy userspace
1591 * wouldn't know how to call this ioctl)
1593 if (!file_priv->atomic)
1596 if (arg->flags & ~DRM_MODE_ATOMIC_FLAGS)
1602 if ((arg->flags & DRM_MODE_PAGE_FLIP_ASYNC) &&
1603 !dev->mode_config.async_page_flip)
1606 /* can't test and expect an event at the same time. */
1607 if ((arg->flags & DRM_MODE_ATOMIC_TEST_ONLY) &&
1608 (arg->flags & DRM_MODE_PAGE_FLIP_EVENT))
1611 drm_modeset_acquire_init(&ctx, 0);
1613 state = drm_atomic_state_alloc(dev);
1617 state->acquire_ctx = &ctx;
1618 state->allow_modeset = !!(arg->flags & DRM_MODE_ATOMIC_ALLOW_MODESET);
1625 for (i = 0; i < arg->count_objs; i++) {
1626 uint32_t obj_id, count_props;
1627 struct drm_mode_object *obj;
1629 if (get_user(obj_id, objs_ptr + copied_objs)) {
1634 obj = drm_mode_object_find(dev, obj_id, DRM_MODE_OBJECT_ANY);
1640 if (!obj->properties) {
1641 drm_mode_object_unreference(obj);
1646 if (get_user(count_props, count_props_ptr + copied_objs)) {
1647 drm_mode_object_unreference(obj);
1654 for (j = 0; j < count_props; j++) {
1656 uint64_t prop_value;
1657 struct drm_property *prop;
1659 if (get_user(prop_id, props_ptr + copied_props)) {
1660 drm_mode_object_unreference(obj);
1665 prop = drm_property_find(dev, prop_id);
1667 drm_mode_object_unreference(obj);
1672 if (copy_from_user(&prop_value,
1673 prop_values_ptr + copied_props,
1674 sizeof(prop_value))) {
1675 drm_mode_object_unreference(obj);
1680 ret = atomic_set_prop(state, obj, prop, prop_value);
1682 drm_mode_object_unreference(obj);
1689 if (obj->type == DRM_MODE_OBJECT_PLANE && count_props &&
1690 !(arg->flags & DRM_MODE_ATOMIC_TEST_ONLY)) {
1691 plane = obj_to_plane(obj);
1692 plane_mask |= (1 << drm_plane_index(plane));
1693 plane->old_fb = plane->fb;
1695 drm_mode_object_unreference(obj);
1698 if (arg->flags & DRM_MODE_PAGE_FLIP_EVENT) {
1699 for_each_crtc_in_state(state, crtc, crtc_state, i) {
1700 struct drm_pending_vblank_event *e;
1702 e = create_vblank_event(dev, file_priv, NULL,
1709 crtc_state->event = e;
1713 if (arg->flags & DRM_MODE_ATOMIC_TEST_ONLY) {
1715 * Unlike commit, check_only does not clean up state.
1716 * Below we call drm_atomic_state_free for it.
1718 ret = drm_atomic_check_only(state);
1719 } else if (arg->flags & DRM_MODE_ATOMIC_NONBLOCK) {
1720 ret = drm_atomic_nonblocking_commit(state);
1722 ret = drm_atomic_commit(state);
1726 drm_atomic_clean_old_fb(dev, plane_mask, ret);
1728 if (ret && arg->flags & DRM_MODE_PAGE_FLIP_EVENT) {
1730 * TEST_ONLY and PAGE_FLIP_EVENT are mutually exclusive,
1731 * if they weren't, this code should be called on success
1732 * for TEST_ONLY too.
1735 for_each_crtc_in_state(state, crtc, crtc_state, i) {
1736 if (!crtc_state->event)
1739 drm_event_cancel_free(dev, &crtc_state->event->base);
1743 if (ret == -EDEADLK) {
1744 drm_atomic_state_clear(state);
1745 drm_modeset_backoff(&ctx);
1749 if (ret || arg->flags & DRM_MODE_ATOMIC_TEST_ONLY)
1750 drm_atomic_state_free(state);
1752 drm_modeset_drop_locks(&ctx);
1753 drm_modeset_acquire_fini(&ctx);