dma/mediatek/mtk-hsdma.c

193  * @vc:			   An instance for struct virt_dma_chan
197  *			   which is protected by vc.lock
200 	struct virt_dma_chan vc;
224  * @vc:			     The pointer to all available VCs
238 	struct mtk_hsdma_vchan *vc;
255 	return container_of(chan, struct mtk_hsdma_vchan, vc.chan);
500 	lockdep_assert_held(&hvc->vc.lock);
502 	list_for_each_entry_safe(vd, vd2, &hvc->vc.desc_issued, node) {
585 			spin_lock(&hvc->vc.lock);
598 			spin_unlock(&hvc->vc.lock);
633 		hvc = &hsdma->vc[i];
634 		spin_lock(&hvc->vc.lock);
636 		spin_unlock(&hvc->vc.lock);
669 	list_for_each_entry(vd, &hvc->vc.desc_issued, node)
691 	spin_lock_irqsave(&hvc->vc.lock, flags);
693 	spin_unlock_irqrestore(&hvc->vc.lock, flags);
711 	spin_lock_irqsave(&hvc->vc.lock, flags);
713 	if (vchan_issue_pending(&hvc->vc))
716 	spin_unlock_irqrestore(&hvc->vc.lock, flags);
739 	struct virt_dma_chan *vc = to_virt_chan(c);
743 	spin_lock_irqsave(&vc->lock, flags);
744 	list_splice_tail_init(&vc->desc_allocated, &head);
745 	list_splice_tail_init(&vc->desc_submitted, &head);
746 	list_splice_tail_init(&vc->desc_issued, &head);
747 	spin_unlock_irqrestore(&vc->lock, flags);
750 	vchan_dma_desc_free_list(vc, &head);
765 	spin_lock(&hvc->vc.lock);
770 	spin_unlock(&hvc->vc.lock);
782 	vchan_synchronize(&hvc->vc);
784 	WARN_ONCE(!list_empty(&hvc->vc.desc_completed),
896 	struct mtk_hsdma_vchan *vc;
961 	hsdma->vc = devm_kcalloc(&pdev->dev, hsdma->dma_requests,
962 				 sizeof(*hsdma->vc), GFP_KERNEL);
963 	if (!hsdma->vc)
967 		vc = &hsdma->vc[i];
968 		vc->vc.desc_free = mtk_hsdma_vdesc_free;
969 		vchan_init(&vc->vc, dd);
970 		init_completion(&vc->issue_completion);
971 		INIT_LIST_HEAD(&vc->desc_hw_processing);
1015 	struct mtk_hsdma_vchan *vc;
1020 		vc = &hsdma->vc[i];
1022 		list_del(&vc->vc.chan.device_node);
1023 		tasklet_kill(&vc->vc.task);