192  *			   channel (VC)
193  * @vc:			   An instance for struct virt_dma_chan
197  *			   which is protected by vc.lock
200 	struct virt_dma_chan vc;  member
224  * @vc:			     The pointer to all available VCs
238 	struct mtk_hsdma_vchan *vc;  member
255 	return container_of(chan, struct mtk_hsdma_vchan, vc.chan);  in to_hsdma_vchan()
500 	lockdep_assert_held(&hvc->vc.lock);  in mtk_hsdma_issue_vchan_pending()
502 	list_for_each_entry_safe(vd, vd2, &hvc->vc.desc_issued, node) {  in mtk_hsdma_issue_vchan_pending()
585 			spin_lock(&hvc->vc.lock);  in mtk_hsdma_free_rooms_in_ring()
598 			spin_unlock(&hvc->vc.lock);  in mtk_hsdma_free_rooms_in_ring()
633 		hvc = &hsdma->vc[i];  in mtk_hsdma_free_rooms_in_ring()
634 		spin_lock(&hvc->vc.lock);  in mtk_hsdma_free_rooms_in_ring()
636 		spin_unlock(&hvc->vc.lock);  in mtk_hsdma_free_rooms_in_ring()
669 	list_for_each_entry(vd, &hvc->vc.desc_issued, node)  in mtk_hsdma_find_active_desc()
691 	spin_lock_irqsave(&hvc->vc.lock, flags);  in mtk_hsdma_tx_status()
693 	spin_unlock_irqrestore(&hvc->vc.lock, flags);  in mtk_hsdma_tx_status()
711 	spin_lock_irqsave(&hvc->vc.lock, flags);  in mtk_hsdma_issue_pending()
713 	if (vchan_issue_pending(&hvc->vc))  in mtk_hsdma_issue_pending()
716 	spin_unlock_irqrestore(&hvc->vc.lock, flags);  in mtk_hsdma_issue_pending()
739 	struct virt_dma_chan *vc = to_virt_chan(c);  in mtk_hsdma_free_inactive_desc()  local
743 	spin_lock_irqsave(&vc->lock, flags);  in mtk_hsdma_free_inactive_desc()
744 	list_splice_tail_init(&vc->desc_allocated, &head);  in mtk_hsdma_free_inactive_desc()
745 	list_splice_tail_init(&vc->desc_submitted, &head);  in mtk_hsdma_free_inactive_desc()
746 	list_splice_tail_init(&vc->desc_issued, &head);  in mtk_hsdma_free_inactive_desc()
747 	spin_unlock_irqrestore(&vc->lock, flags);  in mtk_hsdma_free_inactive_desc()
749 	/* At the point, we don't expect users put descriptor into VC again */  in mtk_hsdma_free_inactive_desc()
750 	vchan_dma_desc_free_list(vc, &head);  in mtk_hsdma_free_inactive_desc()
765 	spin_lock(&hvc->vc.lock);  in mtk_hsdma_free_active_desc()
770 	spin_unlock(&hvc->vc.lock);  in mtk_hsdma_free_active_desc()
782 	vchan_synchronize(&hvc->vc);  in mtk_hsdma_free_active_desc()
784 	WARN_ONCE(!list_empty(&hvc->vc.desc_completed),  in mtk_hsdma_free_active_desc()
814 	 * when the first VC is being created and the other VCs would run on  in mtk_hsdma_alloc_chan_resources()
837 	/* Free all descriptors in all lists on the VC */  in mtk_hsdma_free_chan_resources()
896 	struct mtk_hsdma_vchan *vc;  in mtk_hsdma_probe()  local
961 	hsdma->vc = devm_kcalloc(&pdev->dev, hsdma->dma_requests,  in mtk_hsdma_probe()
962 				 sizeof(*hsdma->vc), GFP_KERNEL);  in mtk_hsdma_probe()
963 	if (!hsdma->vc)  in mtk_hsdma_probe()
967 		vc = &hsdma->vc[i];  in mtk_hsdma_probe()
968 		vc->vc.desc_free = mtk_hsdma_vdesc_free;  in mtk_hsdma_probe()
969 		vchan_init(&vc->vc, dd);  in mtk_hsdma_probe()
970 		init_completion(&vc->issue_completion);  in mtk_hsdma_probe()
971 		INIT_LIST_HEAD(&vc->desc_hw_processing);  in mtk_hsdma_probe()
1015 	struct mtk_hsdma_vchan *vc;  in mtk_hsdma_remove()  local
1018 	/* Kill VC task */  in mtk_hsdma_remove()
1020 		vc = &hsdma->vc[i];  in mtk_hsdma_remove()
1022 		list_del(&vc->vc.chan.device_node);  in mtk_hsdma_remove()
1023 		tasklet_kill(&vc->vc.task);  in mtk_hsdma_remove()