intel/keembay/ocs-hcu.c

436  * @dma_list:	The OCS DMA list mapping the data to hash.
444 				const struct ocs_hcu_dma_list *dma_list,
450 	if (!dma_list)
471 	writel(dma_list->dma_addr, hcu_dev->io_base + OCS_HCU_DMA_NEXT_SRC_DESCR);
492 	struct ocs_hcu_dma_list *dma_list;
494 	dma_list = kmalloc(sizeof(*dma_list), GFP_KERNEL);
495 	if (!dma_list)
499 	dma_list->head = dma_alloc_coherent(hcu_dev->dev,
500 					    sizeof(*dma_list->head) * max_nents,
501 					    &dma_list->dma_addr, GFP_KERNEL);
502 	if (!dma_list->head) {
503 		kfree(dma_list);
506 	dma_list->max_nents = max_nents;
507 	dma_list->tail = NULL;
509 	return dma_list;
513 			   struct ocs_hcu_dma_list *dma_list)
515 	if (!dma_list)
519 			  sizeof(*dma_list->head) * dma_list->max_nents,
520 			  dma_list->head, dma_list->dma_addr);
522 	kfree(dma_list);
527 			      struct ocs_hcu_dma_list *dma_list,
537 	if (!dma_list)
546 	old_tail = dma_list->tail;
547 	new_tail = old_tail ? old_tail + 1 : dma_list->head;
550 	if (new_tail - dma_list->head >= dma_list->max_nents)
563 		old_tail->nxt_desc = dma_list->dma_addr +
564 				     sizeof(*dma_list->tail) * (new_tail -
565 								dma_list->head);
574 	dma_list->tail = new_tail;
603  * @dma_list:	The OCS DMA list mapping the input data to process.
609 			const struct ocs_hcu_dma_list *dma_list)
626 	rc = ocs_hcu_ll_dma_start(hcu_dev, dma_list, false);
638  * @dma_list:	The OCS DMA list mapping the input data to process.
646 		       const struct ocs_hcu_dma_list *dma_list,
664 	rc = ocs_hcu_ll_dma_start(hcu_dev, dma_list, true);
770  * @dma_list:	The OCS DMA list mapping the input data to process.
779 		 const struct ocs_hcu_dma_list *dma_list,
797 	rc = ocs_hcu_ll_dma_start(hcu_dev, dma_list, true);