1 // SPDX-License-Identifier: GPL-2.0
62  * devm_ioremap - Managed ioremap()
64  * @offset: Resource address to map
65  * @size: Size of map
67  * Managed ioremap().  Map is automatically unmapped on driver detach.
77  * devm_ioremap_uc - Managed ioremap_uc()
79  * @offset: Resource address to map
80  * @size: Size of map
82  * Managed ioremap_uc().  Map is automatically unmapped on driver detach.
92  * devm_ioremap_wc - Managed ioremap_wc()
94  * @offset: Resource address to map
95  * @size: Size of map
97  * Managed ioremap_wc().  Map is automatically unmapped on driver detach.
107  * devm_iounmap - Managed iounmap()
133 		return IOMEM_ERR_PTR(-EINVAL);  in __devm_ioremap_resource()
136 	if (type == DEVM_IOREMAP && res->flags & IORESOURCE_MEM_NONPOSTED)  in __devm_ioremap_resource()
141 	if (res->name)  in __devm_ioremap_resource()
143 					     dev_name(dev), res->name);  in __devm_ioremap_resource()
147 		dev_err(dev, "can't generate pretty name for resource %pR\n", res);  in __devm_ioremap_resource()
148 		return IOMEM_ERR_PTR(-ENOMEM);  in __devm_ioremap_resource()
151 	if (!devm_request_mem_region(dev, res->start, size, pretty_name)) {  in __devm_ioremap_resource()
153 		return IOMEM_ERR_PTR(-EBUSY);  in __devm_ioremap_resource()
156 	dest_ptr = __devm_ioremap(dev, res->start, size, type);  in __devm_ioremap_resource()
159 		devm_release_mem_region(dev, res->start, size);  in __devm_ioremap_resource()
160 		dest_ptr = IOMEM_ERR_PTR(-ENOMEM);  in __devm_ioremap_resource()
167  * devm_ioremap_resource() - check, request region, and ioremap resource
178  *	base = devm_ioremap_resource(&pdev->dev, res);
193  * devm_ioremap_resource_wc() - write-combined variant of
208  * devm_of_iomap - Requests a resource and maps the memory mapped IO
219  * @node:       The device-tree node where the resource resides
225  *	base = devm_of_iomap(&pdev->dev, node, 0, NULL);
229  * Please Note: This is not a one-to-one replacement for of_iomap() because the
231  * two drivers try to map the same memory, the of_iomap() function will succeed
232  * but the devm_of_iomap() function will return -EBUSY.
243 		return IOMEM_ERR_PTR(-EINVAL);  in devm_of_iomap()
266  * devm_ioport_map - Managed ioport_map()
267  * @dev: Generic device to map ioport for
268  * @port: Port to map
269  * @nr: Number of ports to map
271  * Managed ioport_map().  Map is automatically unmapped on driver
298  * devm_ioport_unmap - Managed ioport_unmap()
331 		if (this->table[i])  in pcim_iomap_release()
332 			pci_iounmap(dev, this->table[i]);  in pcim_iomap_release()
336  * pcim_iomap_table - access iomap allocation table
352 	dr = devres_find(&pdev->dev, pcim_iomap_release, NULL, NULL);  in pcim_iomap_table()
354 		return dr->table;  in pcim_iomap_table()
357 				   dev_to_node(&pdev->dev));  in pcim_iomap_table()
360 	dr = devres_get(&pdev->dev, new_dr, NULL, NULL);  in pcim_iomap_table()
361 	return dr->table;  in pcim_iomap_table()
366  * pcim_iomap - Managed pcim_iomap()
371  * Managed pci_iomap().  Map is automatically unmapped on driver
390  * pcim_iounmap - Managed pci_iounmap()
416  * pcim_iomap_regions - Request and iomap PCI BARs
417  * @pdev: PCI device to map IO resources for
419  * @name: Name used when requesting regions
423 int pcim_iomap_regions(struct pci_dev *pdev, int mask, const char *name)  in pcim_iomap_regions()  argument
426 	int i, rc;  in pcim_iomap_regions()  local
430 		return -ENOMEM;  in pcim_iomap_regions()
438 		rc = -EINVAL;  in pcim_iomap_regions()
443 		rc = pci_request_region(pdev, i, name);  in pcim_iomap_regions()
444 		if (rc)  in pcim_iomap_regions()
447 		rc = -ENOMEM;  in pcim_iomap_regions()
457 	while (--i >= 0) {  in pcim_iomap_regions()
464 	return rc;  in pcim_iomap_regions()
469  * pcim_iomap_regions_request_all - Request all BARs and iomap specified ones
470  * @pdev: PCI device to map IO resources for
472  * @name: Name used when requesting regions
477 				   const char *name)  in pcim_iomap_regions_request_all()  argument
479 	int request_mask = ((1 << 6) - 1) & ~mask;  in pcim_iomap_regions_request_all()
480 	int rc;  in pcim_iomap_regions_request_all()  local
482 	rc = pci_request_selected_regions(pdev, request_mask, name);  in pcim_iomap_regions_request_all()
483 	if (rc)  in pcim_iomap_regions_request_all()
484 		return rc;  in pcim_iomap_regions_request_all()
486 	rc = pcim_iomap_regions(pdev, mask, name);  in pcim_iomap_regions_request_all()
487 	if (rc)  in pcim_iomap_regions_request_all()
489 	return rc;  in pcim_iomap_regions_request_all()
494  * pcim_iounmap_regions - Unmap and release PCI BARs
495  * @pdev: PCI device to map IO resources for
526  * devm_arch_phys_wc_add - Managed arch_phys_wc_add()
542 		return -ENOMEM;  in devm_arch_phys_wc_add()
566 	arch_io_free_memtype_wc(this->start, this->size);  in devm_arch_io_free_memtype_wc_release()
570  * devm_arch_io_reserve_memtype_wc - Managed arch_io_reserve_memtype_wc()
588 		return -ENOMEM;  in devm_arch_io_reserve_memtype_wc()
596 	dr->start = start;  in devm_arch_io_reserve_memtype_wc()
597 	dr->size = size;  in devm_arch_io_reserve_memtype_wc()