drivers/dma/owl-dma.c

174  * @lli_list: link list of lli nodes
337 static u32 llc_hw_flen(struct owl_dma_lli *lli)
339 	return lli->hw[OWL_DMADESC_FLEN] & GENMASK(19, 0);
343 			     struct owl_dma_lli *lli)
345 	list_del(&lli->node);
346 	dma_pool_free(od->lli_pool, lli, lli->phys);
351 	struct owl_dma_lli *lli;
354 	lli = dma_pool_alloc(od->lli_pool, GFP_NOWAIT, &phys);
355 	if (!lli)
358 	INIT_LIST_HEAD(&lli->node);
359 	lli->phys = phys;
361 	return lli;
382 				  struct owl_dma_lli *lli,
430 	lli->hw[OWL_DMADESC_CTRLA] = llc_hw_ctrla(mode,
439 	lli->hw[OWL_DMADESC_NEXT_LLI] = 0; /* One link list by default */
440 	lli->hw[OWL_DMADESC_SADDR] = src;
441 	lli->hw[OWL_DMADESC_DADDR] = dst;
442 	lli->hw[OWL_DMADESC_SRC_STRIDE] = 0;
443 	lli->hw[OWL_DMADESC_DST_STRIDE] = 0;
447 		lli->hw[OWL_DMADESC_FLEN] = len;
453 		lli->hw[OWL_DMADESC_CTRLB] = FCNT_VAL | ctrlb;
461 		lli->hw[OWL_DMADESC_FLEN] = len | FCNT_VAL << 20;
462 		lli->hw[OWL_DMADESC_CTRLB] = ctrlb;
541 	struct owl_dma_lli *lli;
553 	lli = list_first_entry(&txd->lli_list,
564 	pchan_writel(pchan, OWL_DMAX_NEXT_DESCRIPTOR, lli->phys);
678 	struct owl_dma_lli *lli, *_lli;
683 	list_for_each_entry_safe(lli, _lli, &txd->lli_list, node)
684 		owl_dma_free_lli(od, lli);
775 	struct owl_dma_lli *lli;
791 		list_for_each_entry(lli, &txd->lli_list, node) {
793 			if (lli->phys == next_lli_phy) {
794 				list_for_each_entry(lli, &txd->lli_list, node)
795 					bytes += llc_hw_flen(lli);
809 	struct owl_dma_lli *lli;
825 		list_for_each_entry(lli, &txd->lli_list, node)
826 			bytes += llc_hw_flen(lli);
874 	struct owl_dma_lli *lli, *prev = NULL;
889 		lli = owl_dma_alloc_lli(od);
890 		if (!lli) {
891 			dev_warn(chan2dev(chan), "failed to allocate lli\n");
897 		ret = owl_dma_cfg_lli(vchan, lli, src + offset, dst + offset,
901 			dev_warn(chan2dev(chan), "failed to config lli\n");
905 		prev = owl_dma_add_lli(txd, prev, lli, false);
926 	struct owl_dma_lli *lli, *prev = NULL;
948 		lli = owl_dma_alloc_lli(od);
949 		if (!lli) {
950 			dev_err(chan2dev(chan), "failed to allocate lli");
962 		ret = owl_dma_cfg_lli(vchan, lli, src, dst, len, dir, sconfig,
965 			dev_warn(chan2dev(chan), "failed to config lli");
969 		prev = owl_dma_add_lli(txd, prev, lli, false);
991 	struct owl_dma_lli *lli, *prev = NULL, *first = NULL;
1004 		lli = owl_dma_alloc_lli(od);
1005 		if (!lli) {
1006 			dev_warn(chan2dev(chan), "failed to allocate lli");
1018 		ret = owl_dma_cfg_lli(vchan, lli, src, dst, period_len,
1021 			dev_warn(chan2dev(chan), "failed to config lli");
1026 			first = lli;
1028 		prev = owl_dma_add_lli(txd, prev, lli, false);