1 // SPDX-License-Identifier: GPL-2.0
61  * devm_ioremap - Managed ioremap()
63  * @offset: Resource address to map
64  * @size: Size of map
66  * Managed ioremap().  Map is automatically unmapped on driver detach.
76  * devm_ioremap_uc - Managed ioremap_uc()
78  * @offset: Resource address to map
79  * @size: Size of map
81  * Managed ioremap_uc().  Map is automatically unmapped on driver detach.
91  * devm_ioremap_nocache - Managed ioremap_nocache()
93  * @offset: Resource address to map
94  * @size: Size of map
96  * Managed ioremap_nocache().  Map is automatically unmapped on driver
107  * devm_ioremap_wc - Managed ioremap_wc()
109  * @offset: Resource address to map
110  * @size: Size of map
112  * Managed ioremap_wc().  Map is automatically unmapped on driver detach.
122  * devm_iounmap - Managed iounmap()
137  * devm_ioremap_resource() - check, request region, and ioremap resource
149  *	base = devm_ioremap_resource(&pdev->dev, res);
157 	const char *name;  in devm_ioremap_resource()  local
164 		return IOMEM_ERR_PTR(-EINVAL);  in devm_ioremap_resource()
168 	name = res->name ?: dev_name(dev);  in devm_ioremap_resource()
170 	if (!devm_request_mem_region(dev, res->start, size, name)) {  in devm_ioremap_resource()
172 		return IOMEM_ERR_PTR(-EBUSY);  in devm_ioremap_resource()
175 	dest_ptr = devm_ioremap(dev, res->start, size);  in devm_ioremap_resource()
178 		devm_release_mem_region(dev, res->start, size);  in devm_ioremap_resource()
179 		dest_ptr = IOMEM_ERR_PTR(-ENOMEM);  in devm_ioremap_resource()
187  * devm_of_iomap - Requests a resource and maps the memory mapped IO
198  * @node:       The device-tree node where the resource resides
204  *	base = devm_of_iomap(&pdev->dev, node, 0, NULL);
214 		return IOMEM_ERR_PTR(-EINVAL);  in devm_of_iomap()
237  * devm_ioport_map - Managed ioport_map()
238  * @dev: Generic device to map ioport for
239  * @port: Port to map
240  * @nr: Number of ports to map
242  * Managed ioport_map().  Map is automatically unmapped on driver
266  * devm_ioport_unmap - Managed ioport_unmap()
299 		if (this->table[i])  in pcim_iomap_release()
300 			pci_iounmap(dev, this->table[i]);  in pcim_iomap_release()
304  * pcim_iomap_table - access iomap allocation table
320 	dr = devres_find(&pdev->dev, pcim_iomap_release, NULL, NULL);  in pcim_iomap_table()
322 		return dr->table;  in pcim_iomap_table()
327 	dr = devres_get(&pdev->dev, new_dr, NULL, NULL);  in pcim_iomap_table()
328 	return dr->table;  in pcim_iomap_table()
333  * pcim_iomap - Managed pcim_iomap()
338  * Managed pci_iomap().  Map is automatically unmapped on driver
357  * pcim_iounmap - Managed pci_iounmap()
383  * pcim_iomap_regions - Request and iomap PCI BARs
384  * @pdev: PCI device to map IO resources for
386  * @name: Name used when requesting regions
390 int pcim_iomap_regions(struct pci_dev *pdev, int mask, const char *name)  in pcim_iomap_regions()  argument
393 	int i, rc;  in pcim_iomap_regions()  local
397 		return -ENOMEM;  in pcim_iomap_regions()
405 		rc = -EINVAL;  in pcim_iomap_regions()
410 		rc = pci_request_region(pdev, i, name);  in pcim_iomap_regions()
411 		if (rc)  in pcim_iomap_regions()
414 		rc = -ENOMEM;  in pcim_iomap_regions()
424 	while (--i >= 0) {  in pcim_iomap_regions()
431 	return rc;  in pcim_iomap_regions()
436  * pcim_iomap_regions_request_all - Request all BARs and iomap specified ones
437  * @pdev: PCI device to map IO resources for
439  * @name: Name used when requesting regions
444 				   const char *name)  in pcim_iomap_regions_request_all()  argument
446 	int request_mask = ((1 << 6) - 1) & ~mask;  in pcim_iomap_regions_request_all()
447 	int rc;  in pcim_iomap_regions_request_all()  local
449 	rc = pci_request_selected_regions(pdev, request_mask, name);  in pcim_iomap_regions_request_all()
450 	if (rc)  in pcim_iomap_regions_request_all()
451 		return rc;  in pcim_iomap_regions_request_all()
453 	rc = pcim_iomap_regions(pdev, mask, name);  in pcim_iomap_regions_request_all()
454 	if (rc)  in pcim_iomap_regions_request_all()
456 	return rc;  in pcim_iomap_regions_request_all()
461  * pcim_iounmap_regions - Unmap and release PCI BARs
462  * @pdev: PCI device to map IO resources for