1 // SPDX-License-Identifier: GPL-2.0
16 void devm_ioremap_release(struct device *dev, void *res)  in devm_ioremap_release()
21 static int devm_ioremap_match(struct device *dev, void *res, void *match_data)  in devm_ioremap_match()
26 static void __iomem *__devm_ioremap(struct device *dev, resource_size_t offset,  in __devm_ioremap()
30 	void __iomem **ptr, *addr = NULL;  in __devm_ioremap()  local
38 		addr = ioremap(offset, size);  in __devm_ioremap()
41 		addr = ioremap_uc(offset, size);  in __devm_ioremap()
44 		addr = ioremap_wc(offset, size);  in __devm_ioremap()
47 		addr = ioremap_np(offset, size);  in __devm_ioremap()
51 	if (addr) {  in __devm_ioremap()
52 		*ptr = addr;  in __devm_ioremap()
57 	return addr;  in __devm_ioremap()
61  * devm_ioremap - Managed ioremap()
62  * @dev: Generic device to remap IO address for
68 void __iomem *devm_ioremap(struct device *dev, resource_size_t offset,  in devm_ioremap()
76  * devm_ioremap_uc - Managed ioremap_uc()
77  * @dev: Generic device to remap IO address for
83 void __iomem *devm_ioremap_uc(struct device *dev, resource_size_t offset,  in devm_ioremap_uc()
91  * devm_ioremap_wc - Managed ioremap_wc()
92  * @dev: Generic device to remap IO address for
98 void __iomem *devm_ioremap_wc(struct device *dev, resource_size_t offset,  in devm_ioremap_wc()
106  * devm_ioremap_np - Managed ioremap_np()
107  * @dev: Generic device to remap IO address for
113 void __iomem *devm_ioremap_np(struct device *dev, resource_size_t offset,  in devm_ioremap_np()
121  * devm_iounmap - Managed iounmap()
122  * @dev: Generic device to unmap for
123  * @addr: Address to unmap
125  * Managed iounmap().  @addr must have been mapped using devm_ioremap*().
127 void devm_iounmap(struct device *dev, void __iomem *addr)  in devm_iounmap()  argument
130 			       (__force void *)addr));  in devm_iounmap()
131 	iounmap(addr);  in devm_iounmap()
136 __devm_ioremap_resource(struct device *dev, const struct resource *res,  in __devm_ioremap_resource()
147 		return IOMEM_ERR_PTR(-EINVAL);  in __devm_ioremap_resource()
150 	if (type == DEVM_IOREMAP && res->flags & IORESOURCE_MEM_NONPOSTED)  in __devm_ioremap_resource()
155 	if (res->name)  in __devm_ioremap_resource()
157 					     dev_name(dev), res->name);  in __devm_ioremap_resource()
162 		return IOMEM_ERR_PTR(-ENOMEM);  in __devm_ioremap_resource()
165 	if (!devm_request_mem_region(dev, res->start, size, pretty_name)) {  in __devm_ioremap_resource()
167 		return IOMEM_ERR_PTR(-EBUSY);  in __devm_ioremap_resource()
170 	dest_ptr = __devm_ioremap(dev, res->start, size, type);  in __devm_ioremap_resource()
173 		devm_release_mem_region(dev, res->start, size);  in __devm_ioremap_resource()
174 		dest_ptr = IOMEM_ERR_PTR(-ENOMEM);  in __devm_ioremap_resource()
181  * devm_ioremap_resource() - check, request region, and ioremap resource
182  * @dev: generic device to handle the resource for
192  *	base = devm_ioremap_resource(&pdev->dev, res);
199 void __iomem *devm_ioremap_resource(struct device *dev,  in devm_ioremap_resource()
207  * devm_ioremap_resource_wc() - write-combined variant of
209  * @dev: generic device to handle the resource for
215 void __iomem *devm_ioremap_resource_wc(struct device *dev,  in devm_ioremap_resource_wc()
222  * devm_of_iomap - Requests a resource and maps the memory mapped IO
223  *		   for a given device_node managed by a given device
227  * on driver detach of the device.
229  * This is to be used when a device requests/maps resources described
230  * by other device tree nodes (children or otherwise).
232  * @dev:	The device "managing" the resource
233  * @node:       The device-tree node where the resource resides
239  *	base = devm_of_iomap(&pdev->dev, node, 0, NULL);
243  * Please Note: This is not a one-to-one replacement for of_iomap() because the
246  * but the devm_of_iomap() function will return -EBUSY.
251 void __iomem *devm_of_iomap(struct device *dev, struct device_node *node, int index,  in devm_of_iomap()
257 		return IOMEM_ERR_PTR(-EINVAL);  in devm_of_iomap()
268 static void devm_ioport_map_release(struct device *dev, void *res)  in devm_ioport_map_release()
273 static int devm_ioport_map_match(struct device *dev, void *res,  in devm_ioport_map_match()
280  * devm_ioport_map - Managed ioport_map()
281  * @dev: Generic device to map ioport for
290 void __iomem *devm_ioport_map(struct device *dev, unsigned long port,  in devm_ioport_map()
293 	void __iomem **ptr, *addr;  in devm_ioport_map()  local
299 	addr = ioport_map(port, nr);  in devm_ioport_map()
300 	if (addr) {  in devm_ioport_map()
301 		*ptr = addr;  in devm_ioport_map()
306 	return addr;  in devm_ioport_map()
311  * devm_ioport_unmap - Managed ioport_unmap()
312  * @dev: Generic device to unmap for
313  * @addr: Address to unmap
315  * Managed ioport_unmap().  @addr must have been mapped using
318 void devm_ioport_unmap(struct device *dev, void __iomem *addr)  in devm_ioport_unmap()  argument
320 	ioport_unmap(addr);  in devm_ioport_unmap()
322 			       devm_ioport_map_match, (__force void *)addr));  in devm_ioport_unmap()
337 static void pcim_iomap_release(struct device *gendev, void *res)  in pcim_iomap_release()
344 		if (this->table[i])  in pcim_iomap_release()
345 			pci_iounmap(dev, this->table[i]);  in pcim_iomap_release()
349  * pcim_iomap_table - access iomap allocation table
350  * @pdev: PCI device to access iomap table for
365 	dr = devres_find(&pdev->dev, pcim_iomap_release, NULL, NULL);  in pcim_iomap_table()
367 		return dr->table;  in pcim_iomap_table()
372 	dr = devres_get(&pdev->dev, new_dr, NULL, NULL);  in pcim_iomap_table()
373 	return dr->table;  in pcim_iomap_table()
378  * pcim_iomap - Managed pcim_iomap()
379  * @pdev: PCI device to iomap for
402  * pcim_iounmap - Managed pci_iounmap()
403  * @pdev: PCI device to iounmap for
404  * @addr: Address to unmap
406  * Managed pci_iounmap().  @addr must have been mapped using pcim_iomap().
408 void pcim_iounmap(struct pci_dev *pdev, void __iomem *addr)  in pcim_iounmap()  argument
413 	pci_iounmap(pdev, addr);  in pcim_iounmap()
419 		if (tbl[i] == addr) {  in pcim_iounmap()
428  * pcim_iomap_regions - Request and iomap PCI BARs
429  * @pdev: PCI device to map IO resources for
442 		return -ENOMEM;  in pcim_iomap_regions()
450 		rc = -EINVAL;  in pcim_iomap_regions()
459 		rc = -ENOMEM;  in pcim_iomap_regions()
469 	while (--i >= 0) {  in pcim_iomap_regions()
481  * pcim_iomap_regions_request_all - Request all BARs and iomap specified ones
482  * @pdev: PCI device to map IO resources for
491 	int request_mask = ((1 << 6) - 1) & ~mask;  in pcim_iomap_regions_request_all()
506  * pcim_iounmap_regions - Unmap and release PCI BARs
507  * @pdev: PCI device to map IO resources for