2  * Copyright (c) 2006-2008 Intel Corporation
36 #include <linux/dma-fence.h>
68  * The CRTC is also the entry point for legacy modeset operations (see
69  * &drm_crtc_funcs.set_config), legacy plane operations (see
70  * &drm_crtc_funcs.page_flip and &drm_crtc_funcs.cursor_set2), and other legacy
77  * drm_crtc_from_index - find the registered CRTC at an index
92 		if (idx == crtc->index)  in drm_crtc_from_index()
105 	WARN_ON(drm_drv_uses_atomic_modeset(crtc->dev));  in drm_crtc_force_disable()
118 		if (crtc->funcs->late_register)  in drm_crtc_register_all()
119 			ret = crtc->funcs->late_register(crtc);  in drm_crtc_register_all()
132 		if (crtc->funcs->early_unregister)  in drm_crtc_unregister_all()
133 			crtc->funcs->early_unregister(crtc);  in drm_crtc_unregister_all()
141 	spin_lock_init(&crtc->crc.lock);  in drm_crtc_crc_init()
142 	init_waitqueue_head(&crtc->crc.wq);  in drm_crtc_crc_init()
143 	crtc->crc.source = kstrdup("auto", GFP_KERNEL);  in drm_crtc_crc_init()
144 	if (!crtc->crc.source)  in drm_crtc_crc_init()
145 		return -ENOMEM;  in drm_crtc_crc_init()
153 	kfree(crtc->crc.source);  in drm_crtc_crc_fini()
161 	BUG_ON(fence->ops != &drm_crtc_fence_ops);  in fence_to_crtc()
162 	return container_of(fence->lock, struct drm_crtc, fence_lock);  in fence_to_crtc()
169 	return crtc->dev->driver->name;  in drm_crtc_fence_get_driver_name()
176 	return crtc->timeline_name;  in drm_crtc_fence_get_timeline_name()
192 	dma_fence_init(fence, &drm_crtc_fence_ops, &crtc->fence_lock,  in drm_crtc_create_fence()
193 		       crtc->fence_context, ++crtc->fence_seqno);  in drm_crtc_create_fence()
206  * 	powered off. There is no expectation that user-space will reset CRTC
207  * 	resources like the mode and planes when setting ACTIVE to 0.
209  * 	User-space can rely on an ACTIVE change to 1 to never fail an atomic
210  * 	test as long as no other property has changed. If a change to ACTIVE
215  * 	Note that the legacy DPMS property on connectors is internally routed
219  * 	ID of a blob containing the DRM mode info. To disable the CRTC,
220  * 	user-space must set this property to 0.
241 	struct drm_mode_config *config = &dev->mode_config;  in __drm_crtc_init_with_planes()
244 	WARN_ON(primary && primary->type != DRM_PLANE_TYPE_PRIMARY);  in __drm_crtc_init_with_planes()
245 	WARN_ON(cursor && cursor->type != DRM_PLANE_TYPE_CURSOR);  in __drm_crtc_init_with_planes()
248 	if (WARN_ON(config->num_crtc >= 32))  in __drm_crtc_init_with_planes()
249 		return -EINVAL;  in __drm_crtc_init_with_planes()
252 		(!funcs->atomic_destroy_state ||  in __drm_crtc_init_with_planes()
253 		 !funcs->atomic_duplicate_state));  in __drm_crtc_init_with_planes()
255 	crtc->dev = dev;  in __drm_crtc_init_with_planes()
256 	crtc->funcs = funcs;  in __drm_crtc_init_with_planes()
258 	INIT_LIST_HEAD(&crtc->commit_list);  in __drm_crtc_init_with_planes()
259 	spin_lock_init(&crtc->commit_lock);  in __drm_crtc_init_with_planes()
261 	drm_modeset_lock_init(&crtc->mutex);  in __drm_crtc_init_with_planes()
262 	ret = drm_mode_object_add(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);  in __drm_crtc_init_with_planes()
267 		crtc->name = kvasprintf(GFP_KERNEL, name, ap);  in __drm_crtc_init_with_planes()
269 		crtc->name = kasprintf(GFP_KERNEL, "crtc-%d", config->num_crtc);  in __drm_crtc_init_with_planes()
271 	if (!crtc->name) {  in __drm_crtc_init_with_planes()
272 		drm_mode_object_unregister(dev, &crtc->base);  in __drm_crtc_init_with_planes()
273 		return -ENOMEM;  in __drm_crtc_init_with_planes()
276 	crtc->fence_context = dma_fence_context_alloc(1);  in __drm_crtc_init_with_planes()
277 	spin_lock_init(&crtc->fence_lock);  in __drm_crtc_init_with_planes()
278 	snprintf(crtc->timeline_name, sizeof(crtc->timeline_name),  in __drm_crtc_init_with_planes()
279 		 "CRTC:%d-%s", crtc->base.id, crtc->name);  in __drm_crtc_init_with_planes()
281 	crtc->base.properties = &crtc->properties;  in __drm_crtc_init_with_planes()
283 	list_add_tail(&crtc->head, &config->crtc_list);  in __drm_crtc_init_with_planes()
284 	crtc->index = config->num_crtc++;  in __drm_crtc_init_with_planes()
286 	crtc->primary = primary;  in __drm_crtc_init_with_planes()
287 	crtc->cursor = cursor;  in __drm_crtc_init_with_planes()
288 	if (primary && !primary->possible_crtcs)  in __drm_crtc_init_with_planes()
289 		primary->possible_crtcs = drm_crtc_mask(crtc);  in __drm_crtc_init_with_planes()
290 	if (cursor && !cursor->possible_crtcs)  in __drm_crtc_init_with_planes()
291 		cursor->possible_crtcs = drm_crtc_mask(crtc);  in __drm_crtc_init_with_planes()
295 		drm_mode_object_unregister(dev, &crtc->base);  in __drm_crtc_init_with_planes()
300 		drm_object_attach_property(&crtc->base, config->prop_active, 0);  in __drm_crtc_init_with_planes()
301 		drm_object_attach_property(&crtc->base, config->prop_mode_id, 0);  in __drm_crtc_init_with_planes()
302 		drm_object_attach_property(&crtc->base,  in __drm_crtc_init_with_planes()
303 					   config->prop_out_fence_ptr, 0);  in __drm_crtc_init_with_planes()
304 		drm_object_attach_property(&crtc->base,  in __drm_crtc_init_with_planes()
305 					   config->prop_vrr_enabled, 0);  in __drm_crtc_init_with_planes()
312  * drm_crtc_init_with_planes - Initialise a new CRTC object with
324  * planes). For really simple hardware which has only 1 plane look at
330  * The @primary and @cursor planes are only relevant for legacy uAPI, see
350 	WARN_ON(!funcs->destroy);  in drm_crtc_init_with_planes()
380 	drm_WARN_ON(dev, funcs && funcs->destroy);  in __drmm_crtc_init_with_planes()
396  * drmm_crtc_init_with_planes - Initialise a new CRTC object with
408  * planes). For really simple hardware which has only 1 plane look at
417  * The @primary and @cursor planes are only relevant for legacy uAPI, see
455 	if (WARN_ON(!funcs || funcs->destroy))  in __drmm_crtc_alloc_with_planes()
456 		return ERR_PTR(-EINVAL);  in __drmm_crtc_alloc_with_planes()
460 		return ERR_PTR(-ENOMEM);  in __drmm_crtc_alloc_with_planes()
476  * drm_crtc_cleanup - Clean up the core crtc usage
479  * This function cleans up @crtc and removes it from the DRM mode setting
485 	struct drm_device *dev = crtc->dev;  in drm_crtc_cleanup()
494 	kfree(crtc->gamma_store);  in drm_crtc_cleanup()
495 	crtc->gamma_store = NULL;  in drm_crtc_cleanup()
497 	drm_modeset_lock_fini(&crtc->mutex);  in drm_crtc_cleanup()
499 	drm_mode_object_unregister(dev, &crtc->base);  in drm_crtc_cleanup()
500 	list_del(&crtc->head);  in drm_crtc_cleanup()
501 	dev->mode_config.num_crtc--;  in drm_crtc_cleanup()
503 	WARN_ON(crtc->state && !crtc->funcs->atomic_destroy_state);  in drm_crtc_cleanup()
504 	if (crtc->state && crtc->funcs->atomic_destroy_state)  in drm_crtc_cleanup()
505 		crtc->funcs->atomic_destroy_state(crtc, crtc->state);  in drm_crtc_cleanup()
507 	kfree(crtc->name);  in drm_crtc_cleanup()
514  * drm_mode_getcrtc - get CRTC configuration
534 		return -EOPNOTSUPP;  in drm_mode_getcrtc()
536 	crtc = drm_crtc_find(dev, file_priv, crtc_resp->crtc_id);  in drm_mode_getcrtc()
538 		return -ENOENT;  in drm_mode_getcrtc()
540 	plane = crtc->primary;  in drm_mode_getcrtc()
542 	crtc_resp->gamma_size = crtc->gamma_size;  in drm_mode_getcrtc()
544 	drm_modeset_lock(&plane->mutex, NULL);  in drm_mode_getcrtc()
545 	if (plane->state && plane->state->fb)  in drm_mode_getcrtc()
546 		crtc_resp->fb_id = plane->state->fb->base.id;  in drm_mode_getcrtc()
547 	else if (!plane->state && plane->fb)  in drm_mode_getcrtc()
548 		crtc_resp->fb_id = plane->fb->base.id;  in drm_mode_getcrtc()
550 		crtc_resp->fb_id = 0;  in drm_mode_getcrtc()
552 	if (plane->state) {  in drm_mode_getcrtc()
553 		crtc_resp->x = plane->state->src_x >> 16;  in drm_mode_getcrtc()
554 		crtc_resp->y = plane->state->src_y >> 16;  in drm_mode_getcrtc()
556 	drm_modeset_unlock(&plane->mutex);  in drm_mode_getcrtc()
558 	drm_modeset_lock(&crtc->mutex, NULL);  in drm_mode_getcrtc()
559 	if (crtc->state) {  in drm_mode_getcrtc()
560 		if (crtc->state->enable) {  in drm_mode_getcrtc()
561 			drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->state->mode);  in drm_mode_getcrtc()
562 			crtc_resp->mode_valid = 1;  in drm_mode_getcrtc()
564 			crtc_resp->mode_valid = 0;  in drm_mode_getcrtc()
567 		crtc_resp->x = crtc->x;  in drm_mode_getcrtc()
568 		crtc_resp->y = crtc->y;  in drm_mode_getcrtc()
570 		if (crtc->enabled) {  in drm_mode_getcrtc()
571 			drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->mode);  in drm_mode_getcrtc()
572 			crtc_resp->mode_valid = 1;  in drm_mode_getcrtc()
575 			crtc_resp->mode_valid = 0;  in drm_mode_getcrtc()
578 	if (!file_priv->aspect_ratio_allowed)  in drm_mode_getcrtc()
579 		crtc_resp->mode.flags &= ~DRM_MODE_FLAG_PIC_AR_MASK;  in drm_mode_getcrtc()
580 	drm_modeset_unlock(&crtc->mutex);  in drm_mode_getcrtc()
588 	struct drm_crtc *crtc = set->crtc;  in __drm_mode_set_config_internal()
593 	WARN_ON(drm_drv_uses_atomic_modeset(crtc->dev));  in __drm_mode_set_config_internal()
596 	 * NOTE: ->set_config can also disable other crtcs (if we steal all  in __drm_mode_set_config_internal()
600 	drm_for_each_crtc(tmp, crtc->dev) {  in __drm_mode_set_config_internal()
601 		struct drm_plane *plane = tmp->primary;  in __drm_mode_set_config_internal()
603 		plane->old_fb = plane->fb;  in __drm_mode_set_config_internal()
606 	fb = set->fb;  in __drm_mode_set_config_internal()
608 	ret = crtc->funcs->set_config(set, ctx);  in __drm_mode_set_config_internal()
610 		struct drm_plane *plane = crtc->primary;  in __drm_mode_set_config_internal()
612 		plane->crtc = fb ? crtc : NULL;  in __drm_mode_set_config_internal()
613 		plane->fb = fb;  in __drm_mode_set_config_internal()
616 	drm_for_each_crtc(tmp, crtc->dev) {  in __drm_mode_set_config_internal()
617 		struct drm_plane *plane = tmp->primary;  in __drm_mode_set_config_internal()
619 		if (plane->fb)  in __drm_mode_set_config_internal()
620 			drm_framebuffer_get(plane->fb);  in __drm_mode_set_config_internal()
621 		if (plane->old_fb)  in __drm_mode_set_config_internal()
622 			drm_framebuffer_put(plane->old_fb);  in __drm_mode_set_config_internal()
623 		plane->old_fb = NULL;  in __drm_mode_set_config_internal()
630  * drm_mode_set_config_internal - helper to call &drm_mode_config_funcs.set_config
637  * This should only be used by non-atomic legacy drivers.
644 	WARN_ON(drm_drv_uses_atomic_modeset(set->crtc->dev));  in drm_mode_set_config_internal()
651  * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the
656  * @mode: mode that framebuffer will be displayed under
661 			    const struct drm_display_mode *mode,  in drm_crtc_check_viewport()  argument
667 	drm_mode_get_hv_timing(mode, &hdisplay, &vdisplay);  in drm_crtc_check_viewport()
669 	if (crtc->state &&  in drm_crtc_check_viewport()
670 	    drm_rotation_90_or_270(crtc->primary->state->rotation))  in drm_crtc_check_viewport()
680  * drm_mode_setcrtc - set CRTC configuration
695 	struct drm_mode_config *config = &dev->mode_config;  in drm_mode_setcrtc()
701 	struct drm_display_mode *mode = NULL;  in drm_mode_setcrtc()  local
708 		return -EOPNOTSUPP;  in drm_mode_setcrtc()
714 	if (crtc_req->x & 0xffff0000 || crtc_req->y & 0xffff0000)  in drm_mode_setcrtc()
715 		return -ERANGE;  in drm_mode_setcrtc()
717 	crtc = drm_crtc_find(dev, file_priv, crtc_req->crtc_id);  in drm_mode_setcrtc()
719 		drm_dbg_kms(dev, "Unknown CRTC ID %d\n", crtc_req->crtc_id);  in drm_mode_setcrtc()
720 		return -ENOENT;  in drm_mode_setcrtc()
722 	drm_dbg_kms(dev, "[CRTC:%d:%s]\n", crtc->base.id, crtc->name);  in drm_mode_setcrtc()
724 	plane = crtc->primary;  in drm_mode_setcrtc()
727 	if (crtc_req->mode_valid && !drm_lease_held(file_priv, plane->base.id))  in drm_mode_setcrtc()
728 		return -EACCES;  in drm_mode_setcrtc()
733 	if (crtc_req->mode_valid) {  in drm_mode_setcrtc()
734 		/* If we have a mode we need a framebuffer. */  in drm_mode_setcrtc()
735 		/* If we pass -1, set the mode with the currently bound fb */  in drm_mode_setcrtc()
736 		if (crtc_req->fb_id == -1) {  in drm_mode_setcrtc()
739 			if (plane->state)  in drm_mode_setcrtc()
740 				old_fb = plane->state->fb;  in drm_mode_setcrtc()
742 				old_fb = plane->fb;  in drm_mode_setcrtc()
746 				ret = -EINVAL;  in drm_mode_setcrtc()
754 			fb = drm_framebuffer_lookup(dev, file_priv, crtc_req->fb_id);  in drm_mode_setcrtc()
757 					    crtc_req->fb_id);  in drm_mode_setcrtc()
758 				ret = -ENOENT;  in drm_mode_setcrtc()
763 		mode = drm_mode_create(dev);  in drm_mode_setcrtc()
764 		if (!mode) {  in drm_mode_setcrtc()
765 			ret = -ENOMEM;  in drm_mode_setcrtc()
768 		if (!file_priv->aspect_ratio_allowed &&  in drm_mode_setcrtc()
769 		    (crtc_req->mode.flags & DRM_MODE_FLAG_PIC_AR_MASK) != DRM_MODE_FLAG_PIC_AR_NONE) {  in drm_mode_setcrtc()
770 			drm_dbg_kms(dev, "Unexpected aspect-ratio flag bits\n");  in drm_mode_setcrtc()
771 			ret = -EINVAL;  in drm_mode_setcrtc()
776 		ret = drm_mode_convert_umode(dev, mode, &crtc_req->mode);  in drm_mode_setcrtc()
778 			drm_dbg_kms(dev, "Invalid mode (%s, %pe): " DRM_MODE_FMT "\n",  in drm_mode_setcrtc()
779 				    drm_get_mode_status_name(mode->status),  in drm_mode_setcrtc()
780 				    ERR_PTR(ret), DRM_MODE_ARG(mode));  in drm_mode_setcrtc()
791 		if (!plane->format_default) {  in drm_mode_setcrtc()
792 			if (!drm_plane_has_format(plane, fb->format->format, fb->modifier)) {  in drm_mode_setcrtc()
794 					    &fb->format->format, fb->modifier);  in drm_mode_setcrtc()
795 				ret = -EINVAL;  in drm_mode_setcrtc()
800 		ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y,  in drm_mode_setcrtc()
801 					      mode, fb);  in drm_mode_setcrtc()
807 	if (crtc_req->count_connectors == 0 && mode) {  in drm_mode_setcrtc()
808 		drm_dbg_kms(dev, "Count connectors is 0 but mode set\n");  in drm_mode_setcrtc()
809 		ret = -EINVAL;  in drm_mode_setcrtc()
813 	if (crtc_req->count_connectors > 0 && (!mode || !fb)) {  in drm_mode_setcrtc()
814 		drm_dbg_kms(dev, "Count connectors is %d but no mode or fb set\n",  in drm_mode_setcrtc()
815 			    crtc_req->count_connectors);  in drm_mode_setcrtc()
816 		ret = -EINVAL;  in drm_mode_setcrtc()
820 	if (crtc_req->count_connectors > 0) {  in drm_mode_setcrtc()
824 		if (crtc_req->count_connectors > config->num_connector) {  in drm_mode_setcrtc()
825 			ret = -EINVAL;  in drm_mode_setcrtc()
829 		connector_set = kmalloc_array(crtc_req->count_connectors,  in drm_mode_setcrtc()
833 			ret = -ENOMEM;  in drm_mode_setcrtc()
837 		for (i = 0; i < crtc_req->count_connectors; i++) {  in drm_mode_setcrtc()
839 			set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr;  in drm_mode_setcrtc()
841 				ret = -EFAULT;  in drm_mode_setcrtc()
849 				ret = -ENOENT;  in drm_mode_setcrtc()
853 				    connector->base.id, connector->name);  in drm_mode_setcrtc()
861 	set.x = crtc_req->x;  in drm_mode_setcrtc()
862 	set.y = crtc_req->y;  in drm_mode_setcrtc()
863 	set.mode = mode;  in drm_mode_setcrtc()
869 		ret = crtc->funcs->set_config(&set, &ctx);  in drm_mode_setcrtc()
884 	drm_mode_destroy(dev, mode);  in drm_mode_setcrtc()
889 	mode = NULL;  in drm_mode_setcrtc()
901 	int ret = -EINVAL;  in drm_mode_crtc_set_obj_prop()
904 	if (crtc->funcs->set_property)  in drm_mode_crtc_set_obj_prop()
905 		ret = crtc->funcs->set_property(crtc, property, value);  in drm_mode_crtc_set_obj_prop()
913  * drm_crtc_create_scaling_filter_property - create a new scaling filter
924  * Zero for success or -errno
930 		drm_create_scaling_filter_prop(crtc->dev, supported_filters);  in drm_crtc_create_scaling_filter_property()
935 	drm_object_attach_property(&crtc->base, prop,  in drm_crtc_create_scaling_filter_property()
937 	crtc->scaling_filter_property = prop;  in drm_crtc_create_scaling_filter_property()