17  * The io_mapping mechanism provides an abstraction for mapping
20  * See Documentation/driver-api/io-mapping.rst
35  * For small address space machines, mapping large objects
58 io_mapping_fini(struct io_mapping *mapping)  in io_mapping_fini()  argument
60 	iomap_free(mapping->base, mapping->size);  in io_mapping_fini()
65 io_mapping_map_atomic_wc(struct io_mapping *mapping,  in io_mapping_map_atomic_wc()  argument
70 	BUG_ON(offset >= mapping->size);  in io_mapping_map_atomic_wc()
71 	phys_addr = mapping->base + offset;  in io_mapping_map_atomic_wc()
72 	return iomap_atomic_prot_pfn(PHYS_PFN(phys_addr), mapping->prot);  in io_mapping_map_atomic_wc()
82 io_mapping_map_wc(struct io_mapping *mapping,  in io_mapping_map_wc()  argument
88 	BUG_ON(offset >= mapping->size);  in io_mapping_map_wc()
89 	phys_addr = mapping->base + offset;  in io_mapping_map_wc()
128 io_mapping_fini(struct io_mapping *mapping)  in io_mapping_fini()  argument
130 	iounmap(mapping->iomem);  in io_mapping_fini()
135 io_mapping_map_wc(struct io_mapping *mapping,  in io_mapping_map_wc()  argument
139 	return mapping->iomem + offset;  in io_mapping_map_wc()
149 io_mapping_map_atomic_wc(struct io_mapping *mapping,  in io_mapping_map_atomic_wc()  argument
154 	return io_mapping_map_wc(mapping, offset, PAGE_SIZE);  in io_mapping_map_atomic_wc()