115  *                         channel (VC)
116  * @vc:                    An instance for struct virt_dma_chan
122 	struct virt_dma_chan vc;  member
135  * @vc:                     The pointer to all available VCs
144 	struct mtk_cqdma_vchan *vc;  member
155 	return container_of(chan, struct mtk_cqdma_vchan, vc.chan);  in to_cqdma_vchan()
272 	lockdep_assert_held(&cvc->vc.lock);  in mtk_cqdma_issue_vchan_pending()
275 	list_for_each_entry_safe(vd, vd2, &cvc->vc.desc_issued, node) {  in mtk_cqdma_issue_vchan_pending()
295  * return true if this VC is active,
333 	spin_lock(&cvc->vc.lock);  in mtk_cqdma_consume_work_queue()
340 		/* setup completion if this VC is under synchronization */  in mtk_cqdma_consume_work_queue()
347 	spin_unlock(&cvc->vc.lock);  in mtk_cqdma_consume_work_queue()
429 	list_for_each_entry(vd, &cvc->vc.desc_issued, node)  in mtk_cqdma_find_active_desc()
452 	spin_lock(&cvc->vc.lock);  in mtk_cqdma_tx_status()
454 	spin_unlock(&cvc->vc.lock);  in mtk_cqdma_tx_status()
475 	spin_lock_irqsave(&cvc->vc.lock, vc_flags);  in mtk_cqdma_issue_pending()
477 	if (vchan_issue_pending(&cvc->vc))  in mtk_cqdma_issue_pending()
480 	spin_unlock_irqrestore(&cvc->vc.lock, vc_flags);  in mtk_cqdma_issue_pending()
550 	struct virt_dma_chan *vc = to_virt_chan(c);  in mtk_cqdma_free_inactive_desc()  local
558 	spin_lock_irqsave(&vc->lock, flags);  in mtk_cqdma_free_inactive_desc()
559 	list_splice_tail_init(&vc->desc_allocated, &head);  in mtk_cqdma_free_inactive_desc()
560 	list_splice_tail_init(&vc->desc_submitted, &head);  in mtk_cqdma_free_inactive_desc()
561 	list_splice_tail_init(&vc->desc_issued, &head);  in mtk_cqdma_free_inactive_desc()
562 	spin_unlock_irqrestore(&vc->lock, flags);  in mtk_cqdma_free_inactive_desc()
565 	vchan_dma_desc_free_list(vc, &head);  in mtk_cqdma_free_inactive_desc()
577 	spin_lock_irqsave(&cvc->vc.lock, vc_flags);  in mtk_cqdma_free_active_desc()
579 	/* synchronization is required if this VC is active */  in mtk_cqdma_free_active_desc()
585 	spin_unlock_irqrestore(&cvc->vc.lock, vc_flags);  in mtk_cqdma_free_active_desc()
588 	/* waiting for the completion of this VC */  in mtk_cqdma_free_active_desc()
593 	vchan_synchronize(&cvc->vc);  in mtk_cqdma_free_active_desc()
595 	WARN_ONCE(!list_empty(&cvc->vc.desc_completed),  in mtk_cqdma_free_active_desc()
613 	struct mtk_cqdma_vchan *vc = to_cqdma_vchan(c);  in mtk_cqdma_alloc_chan_resources()  local
650 	vc->pc = pc;  in mtk_cqdma_alloc_chan_resources()
660 	/* free all descriptors in all lists on the VC */  in mtk_cqdma_free_chan_resources()
665 	/* PC is not freed until there is no VC mapped to it */  in mtk_cqdma_free_chan_resources()
749 	struct mtk_cqdma_vchan *vc;  in mtk_cqdma_probe()  local
839 	cqdma->vc = devm_kcalloc(&pdev->dev, cqdma->dma_requests,  in mtk_cqdma_probe()
840 				 sizeof(*cqdma->vc), GFP_KERNEL);  in mtk_cqdma_probe()
841 	if (!cqdma->vc)  in mtk_cqdma_probe()
845 		vc = &cqdma->vc[i];  in mtk_cqdma_probe()
846 		vc->vc.desc_free = mtk_cqdma_vdesc_free;  in mtk_cqdma_probe()
847 		vchan_init(&vc->vc, dd);  in mtk_cqdma_probe()
848 		init_completion(&vc->issue_completion);  in mtk_cqdma_probe()
889 	struct mtk_cqdma_vchan *vc;  in mtk_cqdma_remove()  local
893 	/* kill VC task */  in mtk_cqdma_remove()
895 		vc = &cqdma->vc[i];  in mtk_cqdma_remove()
897 		list_del(&vc->vc.chan.device_node);  in mtk_cqdma_remove()
898 		tasklet_kill(&vc->vc.task);  in mtk_cqdma_remove()