1 // SPDX-License-Identifier: GPL-2.0
3  * Copyright (c) 2018-2019 Synopsys, Inc. and/or its affiliates.
4  * Synopsys DesignWare eDMA PCIe driver
14 #include <linux/pci-epf.h>
17 #include "dw-edma-core.h"
69 	const struct dw_edma_pcie_data *pdata = (void *)pid->driver_data;  in dw_edma_pcie_probe()
70 	struct device *dev = &pdev->dev;  in dw_edma_pcie_probe()
73 	struct dw_edma *dw;  in dw_edma_pcie_probe()  local
83 	err = pcim_iomap_regions(pdev, BIT(pdata->rg_bar) |  in dw_edma_pcie_probe()
84 				       BIT(pdata->ll_bar) |  in dw_edma_pcie_probe()
85 				       BIT(pdata->dt_bar),  in dw_edma_pcie_probe()
121 		return -ENOMEM;  in dw_edma_pcie_probe()
123 	dw = devm_kzalloc(dev, sizeof(*dw), GFP_KERNEL);  in dw_edma_pcie_probe()
124 	if (!dw)  in dw_edma_pcie_probe()
125 		return -ENOMEM;  in dw_edma_pcie_probe()
128 	nr_irqs = pci_alloc_irq_vectors(pdev, 1, pdata->irqs,  in dw_edma_pcie_probe()
133 		return -EPERM;  in dw_edma_pcie_probe()
137 	chip->dw = dw;  in dw_edma_pcie_probe()
138 	chip->dev = dev;  in dw_edma_pcie_probe()
139 	chip->id = pdev->devfn;  in dw_edma_pcie_probe()
140 	chip->irq = pdev->irq;  in dw_edma_pcie_probe()
142 	dw->rg_region.vaddr = pcim_iomap_table(pdev)[pdata->rg_bar];  in dw_edma_pcie_probe()
143 	dw->rg_region.vaddr += pdata->rg_off;  in dw_edma_pcie_probe()
144 	dw->rg_region.paddr = pdev->resource[pdata->rg_bar].start;  in dw_edma_pcie_probe()
145 	dw->rg_region.paddr += pdata->rg_off;  in dw_edma_pcie_probe()
146 	dw->rg_region.sz = pdata->rg_sz;  in dw_edma_pcie_probe()
148 	dw->ll_region.vaddr = pcim_iomap_table(pdev)[pdata->ll_bar];  in dw_edma_pcie_probe()
149 	dw->ll_region.vaddr += pdata->ll_off;  in dw_edma_pcie_probe()
150 	dw->ll_region.paddr = pdev->resource[pdata->ll_bar].start;  in dw_edma_pcie_probe()
151 	dw->ll_region.paddr += pdata->ll_off;  in dw_edma_pcie_probe()
152 	dw->ll_region.sz = pdata->ll_sz;  in dw_edma_pcie_probe()
154 	dw->dt_region.vaddr = pcim_iomap_table(pdev)[pdata->dt_bar];  in dw_edma_pcie_probe()
155 	dw->dt_region.vaddr += pdata->dt_off;  in dw_edma_pcie_probe()
156 	dw->dt_region.paddr = pdev->resource[pdata->dt_bar].start;  in dw_edma_pcie_probe()
157 	dw->dt_region.paddr += pdata->dt_off;  in dw_edma_pcie_probe()
158 	dw->dt_region.sz = pdata->dt_sz;  in dw_edma_pcie_probe()
160 	dw->version = pdata->version;  in dw_edma_pcie_probe()
161 	dw->mode = pdata->mode;  in dw_edma_pcie_probe()
162 	dw->nr_irqs = nr_irqs;  in dw_edma_pcie_probe()
163 	dw->ops = &dw_edma_pcie_core_ops;  in dw_edma_pcie_probe()
166 	pci_dbg(pdev, "Version:\t%u\n", dw->version);  in dw_edma_pcie_probe()
169 		dw->mode == EDMA_MODE_LEGACY ? "Legacy" : "Unroll");  in dw_edma_pcie_probe()
172 		pdata->rg_bar, pdata->rg_off, pdata->rg_sz,  in dw_edma_pcie_probe()
173 		dw->rg_region.vaddr, &dw->rg_region.paddr);  in dw_edma_pcie_probe()
176 		pdata->ll_bar, pdata->ll_off, pdata->ll_sz,  in dw_edma_pcie_probe()
177 		dw->ll_region.vaddr, &dw->ll_region.paddr);  in dw_edma_pcie_probe()
180 		pdata->dt_bar, pdata->dt_off, pdata->dt_sz,  in dw_edma_pcie_probe()
181 		dw->dt_region.vaddr, &dw->dt_region.paddr);  in dw_edma_pcie_probe()
183 	pci_dbg(pdev, "Nr. IRQs:\t%u\n", dw->nr_irqs);  in dw_edma_pcie_probe()
188 		return -EPERM;  in dw_edma_pcie_probe()
191 	dw->irq = devm_kcalloc(dev, nr_irqs, sizeof(*dw->irq), GFP_KERNEL);  in dw_edma_pcie_probe()
192 	if (!dw->irq)  in dw_edma_pcie_probe()
193 		return -ENOMEM;  in dw_edma_pcie_probe()
229 	.name		= "dw-edma-pcie",
238 MODULE_DESCRIPTION("Synopsys DesignWare eDMA PCIe driver");