1 // SPDX-License-Identifier: GPL-2.0
57  * devm_ioremap - Managed ioremap()
59  * @offset: Resource address to map
60  * @size: Size of map
62  * Managed ioremap().  Map is automatically unmapped on driver detach.
72  * devm_ioremap_uc - Managed ioremap_uc()
74  * @offset: Resource address to map
75  * @size: Size of map
77  * Managed ioremap_uc().  Map is automatically unmapped on driver detach.
87  * devm_ioremap_wc - Managed ioremap_wc()
89  * @offset: Resource address to map
90  * @size: Size of map
92  * Managed ioremap_wc().  Map is automatically unmapped on driver detach.
102  * devm_iounmap - Managed iounmap()
128 		return IOMEM_ERR_PTR(-EINVAL);  in __devm_ioremap_resource()
133 	if (res->name)  in __devm_ioremap_resource()
135 					     dev_name(dev), res->name);  in __devm_ioremap_resource()
139 		return IOMEM_ERR_PTR(-ENOMEM);  in __devm_ioremap_resource()
141 	if (!devm_request_mem_region(dev, res->start, size, pretty_name)) {  in __devm_ioremap_resource()
143 		return IOMEM_ERR_PTR(-EBUSY);  in __devm_ioremap_resource()
146 	dest_ptr = __devm_ioremap(dev, res->start, size, type);  in __devm_ioremap_resource()
149 		devm_release_mem_region(dev, res->start, size);  in __devm_ioremap_resource()
150 		dest_ptr = IOMEM_ERR_PTR(-ENOMEM);  in __devm_ioremap_resource()
157  * devm_ioremap_resource() - check, request region, and ioremap resource
168  *	base = devm_ioremap_resource(&pdev->dev, res);
183  * devm_ioremap_resource_wc() - write-combined variant of
198  * devm_of_iomap - Requests a resource and maps the memory mapped IO
209  * @node:       The device-tree node where the resource resides
215  *	base = devm_of_iomap(&pdev->dev, node, 0, NULL);
219  * Please Note: This is not a one-to-one replacement for of_iomap() because the
221  * two drivers try to map the same memory, the of_iomap() function will succeed
222  * but the devm_of_iomap() function will return -EBUSY.
233 		return IOMEM_ERR_PTR(-EINVAL);  in devm_of_iomap()
256  * devm_ioport_map - Managed ioport_map()
257  * @dev: Generic device to map ioport for
258  * @port: Port to map
259  * @nr: Number of ports to map
261  * Managed ioport_map().  Map is automatically unmapped on driver
287  * devm_ioport_unmap - Managed ioport_unmap()
320 		if (this->table[i])  in pcim_iomap_release()
321 			pci_iounmap(dev, this->table[i]);  in pcim_iomap_release()
325  * pcim_iomap_table - access iomap allocation table
341 	dr = devres_find(&pdev->dev, pcim_iomap_release, NULL, NULL);  in pcim_iomap_table()
343 		return dr->table;  in pcim_iomap_table()
348 	dr = devres_get(&pdev->dev, new_dr, NULL, NULL);  in pcim_iomap_table()
349 	return dr->table;  in pcim_iomap_table()
354  * pcim_iomap - Managed pcim_iomap()
359  * Managed pci_iomap().  Map is automatically unmapped on driver
378  * pcim_iounmap - Managed pci_iounmap()
404  * pcim_iomap_regions - Request and iomap PCI BARs
405  * @pdev: PCI device to map IO resources for
407  * @name: Name used when requesting regions
411 int pcim_iomap_regions(struct pci_dev *pdev, int mask, const char *name)  in pcim_iomap_regions()  argument
414 	int i, rc;  in pcim_iomap_regions()  local
418 		return -ENOMEM;  in pcim_iomap_regions()
426 		rc = -EINVAL;  in pcim_iomap_regions()
431 		rc = pci_request_region(pdev, i, name);  in pcim_iomap_regions()
432 		if (rc)  in pcim_iomap_regions()
435 		rc = -ENOMEM;  in pcim_iomap_regions()
445 	while (--i >= 0) {  in pcim_iomap_regions()
452 	return rc;  in pcim_iomap_regions()
457  * pcim_iomap_regions_request_all - Request all BARs and iomap specified ones
458  * @pdev: PCI device to map IO resources for
460  * @name: Name used when requesting regions
465 				   const char *name)  in pcim_iomap_regions_request_all()  argument
467 	int request_mask = ((1 << 6) - 1) & ~mask;  in pcim_iomap_regions_request_all()
468 	int rc;  in pcim_iomap_regions_request_all()  local
470 	rc = pci_request_selected_regions(pdev, request_mask, name);  in pcim_iomap_regions_request_all()
471 	if (rc)  in pcim_iomap_regions_request_all()
472 		return rc;  in pcim_iomap_regions_request_all()
474 	rc = pcim_iomap_regions(pdev, mask, name);  in pcim_iomap_regions_request_all()
475 	if (rc)  in pcim_iomap_regions_request_all()
477 	return rc;  in pcim_iomap_regions_request_all()
482  * pcim_iounmap_regions - Unmap and release PCI BARs
483  * @pdev: PCI device to map IO resources for