Lines Matching refs:edma

15 #include <linux/dma/edma.h>
151 	if (!pci->edma.reg_base) {
154 			pci->edma.reg_base = devm_ioremap_resource(pci->dev, res);
155 			if (IS_ERR(pci->edma.reg_base))
156 				return PTR_ERR(pci->edma.reg_base);
158 			pci->edma.reg_base = pci->atu_base + DEFAULT_DBI_DMA_OFFSET;
900 		return pci->ops->read_dbi(pci, pci->edma.reg_base, reg, 4);
902 	ret = dw_pcie_read(pci->edma.reg_base + reg, 4, &val);
933 	pci->edma.dev = pci->dev;
935 	if (!pci->edma.ops)
936 		pci->edma.ops = &dw_pcie_edma_ops;
938 	pci->edma.flags |= DW_EDMA_CHIP_LOCAL;
947 	 * driver. Also ensure that the edma.reg_base is pointing to a valid
950 	if (pci->edma.mf != EDMA_MF_EDMA_LEGACY)
951 		return pci->edma.reg_base ? 0 : -ENODEV;
963 	if (val == 0xFFFFFFFF && pci->edma.reg_base) {
964 		pci->edma.mf = EDMA_MF_EDMA_UNROLL;
966 		pci->edma.mf = EDMA_MF_EDMA_LEGACY;
968 		pci->edma.reg_base = pci->dbi_base + PCIE_DMA_VIEWPORT_BASE;
986 	if (pci->edma.mf != EDMA_MF_HDMA_NATIVE) {
989 		pci->edma.ll_wr_cnt = FIELD_GET(PCIE_DMA_NUM_WR_CHAN, val);
990 		pci->edma.ll_rd_cnt = FIELD_GET(PCIE_DMA_NUM_RD_CHAN, val);
994 	if (!pci->edma.ll_wr_cnt || pci->edma.ll_wr_cnt > EDMA_MAX_WR_CH ||
995 	    !pci->edma.ll_rd_cnt || pci->edma.ll_rd_cnt > EDMA_MAX_RD_CH)
1017 	u16 ch_cnt = pci->edma.ll_wr_cnt + pci->edma.ll_rd_cnt;
1021 	if (pci->edma.nr_irqs == 1)
1023 	else if (pci->edma.nr_irqs > 1)
1024 		return pci->edma.nr_irqs != ch_cnt ? -EINVAL : 0;
1028 		pci->edma.nr_irqs = 1;
1032 	for (; pci->edma.nr_irqs < ch_cnt; pci->edma.nr_irqs++) {
1033 		snprintf(name, sizeof(name), "dma%d", pci->edma.nr_irqs);
1049 	for (i = 0; i < pci->edma.ll_wr_cnt; i++) {
1050 		ll = &pci->edma.ll_region_wr[i];
1060 	for (i = 0; i < pci->edma.ll_rd_cnt; i++) {
1061 		ll = &pci->edma.ll_region_rd[i];
1097 	ret = dw_edma_probe(&pci->edma);
1104 		 pci->edma.mf == EDMA_MF_EDMA_UNROLL ? "T" : "F",
1105 		 pci->edma.ll_wr_cnt, pci->edma.ll_rd_cnt);
1112 	dw_edma_remove(&pci->edma);