1 // SPDX-License-Identifier: GPL-2.0
15 void devm_ioremap_release(struct device *dev, void *res)  in devm_ioremap_release()
20 static int devm_ioremap_match(struct device *dev, void *res, void *match_data)  in devm_ioremap_match()
25 static void __iomem *__devm_ioremap(struct device *dev, resource_size_t offset,  in __devm_ioremap()
29 	void __iomem **ptr, *addr = NULL;  in __devm_ioremap()  local
37 		addr = ioremap(offset, size);  in __devm_ioremap()
40 		addr = ioremap_uc(offset, size);  in __devm_ioremap()
43 		addr = ioremap_wc(offset, size);  in __devm_ioremap()
47 	if (addr) {  in __devm_ioremap()
48 		*ptr = addr;  in __devm_ioremap()
53 	return addr;  in __devm_ioremap()
57  * devm_ioremap - Managed ioremap()
58  * @dev: Generic device to remap IO address for
64 void __iomem *devm_ioremap(struct device *dev, resource_size_t offset,  in devm_ioremap()
72  * devm_ioremap_uc - Managed ioremap_uc()
73  * @dev: Generic device to remap IO address for
79 void __iomem *devm_ioremap_uc(struct device *dev, resource_size_t offset,  in devm_ioremap_uc()
87  * devm_ioremap_wc - Managed ioremap_wc()
88  * @dev: Generic device to remap IO address for
94 void __iomem *devm_ioremap_wc(struct device *dev, resource_size_t offset,  in devm_ioremap_wc()
102  * devm_iounmap - Managed iounmap()
103  * @dev: Generic device to unmap for
104  * @addr: Address to unmap
106  * Managed iounmap().  @addr must have been mapped using devm_ioremap*().
108 void devm_iounmap(struct device *dev, void __iomem *addr)  in devm_iounmap()  argument
111 			       (__force void *)addr));  in devm_iounmap()
112 	iounmap(addr);  in devm_iounmap()
117 __devm_ioremap_resource(struct device *dev, const struct resource *res,  in __devm_ioremap_resource()
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
158  * @dev: generic device to handle the resource for
168  *	base = devm_ioremap_resource(&pdev->dev, res);
175 void __iomem *devm_ioremap_resource(struct device *dev,  in devm_ioremap_resource()
183  * devm_ioremap_resource_wc() - write-combined variant of
185  * @dev: generic device to handle the resource for
191 void __iomem *devm_ioremap_resource_wc(struct device *dev,  in devm_ioremap_resource_wc()
198  * devm_of_iomap - Requests a resource and maps the memory mapped IO
199  *		   for a given device_node managed by a given device
203  * on driver detach of the device.
205  * This is to be used when a device requests/maps resources described
206  * by other device tree nodes (children or otherwise).
208  * @dev:	The device "managing" the resource
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
222  * but the devm_of_iomap() function will return -EBUSY.
227 void __iomem *devm_of_iomap(struct device *dev, struct device_node *node, int index,  in devm_of_iomap()
233 		return IOMEM_ERR_PTR(-EINVAL);  in devm_of_iomap()
244 static void devm_ioport_map_release(struct device *dev, void *res)  in devm_ioport_map_release()
249 static int devm_ioport_map_match(struct device *dev, void *res,  in devm_ioport_map_match()
256  * devm_ioport_map - Managed ioport_map()
257  * @dev: Generic device to map ioport for
266 void __iomem *devm_ioport_map(struct device *dev, unsigned long port,  in devm_ioport_map()
269 	void __iomem **ptr, *addr;  in devm_ioport_map()  local
275 	addr = ioport_map(port, nr);  in devm_ioport_map()
276 	if (addr) {  in devm_ioport_map()
277 		*ptr = addr;  in devm_ioport_map()
282 	return addr;  in devm_ioport_map()
287  * devm_ioport_unmap - Managed ioport_unmap()
288  * @dev: Generic device to unmap for
289  * @addr: Address to unmap
291  * Managed ioport_unmap().  @addr must have been mapped using
294 void devm_ioport_unmap(struct device *dev, void __iomem *addr)  in devm_ioport_unmap()  argument
296 	ioport_unmap(addr);  in devm_ioport_unmap()
298 			       devm_ioport_map_match, (__force void *)addr));  in devm_ioport_unmap()
313 static void pcim_iomap_release(struct device *gendev, void *res)  in pcim_iomap_release()
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
326  * @pdev: PCI device to access iomap table for
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()
355  * @pdev: PCI device to iomap for
378  * pcim_iounmap - Managed pci_iounmap()
379  * @pdev: PCI device to iounmap for
380  * @addr: Address to unmap
382  * Managed pci_iounmap().  @addr must have been mapped using pcim_iomap().
384 void pcim_iounmap(struct pci_dev *pdev, void __iomem *addr)  in pcim_iounmap()  argument
389 	pci_iounmap(pdev, addr);  in pcim_iounmap()
395 		if (tbl[i] == addr) {  in pcim_iounmap()
404  * pcim_iomap_regions - Request and iomap PCI BARs
405  * @pdev: PCI device to map IO resources for
418 		return -ENOMEM;  in pcim_iomap_regions()
426 		rc = -EINVAL;  in pcim_iomap_regions()
435 		rc = -ENOMEM;  in pcim_iomap_regions()
445 	while (--i >= 0) {  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
467 	int request_mask = ((1 << 6) - 1) & ~mask;  in pcim_iomap_regions_request_all()
482  * pcim_iounmap_regions - Unmap and release PCI BARs
483  * @pdev: PCI device to map IO resources for