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()
74 	return __iomap_local_pfn_prot(PHYS_PFN(phys_addr), mapping->prot);  in io_mapping_map_atomic_wc()
86 io_mapping_map_local_wc(struct io_mapping *mapping, unsigned long offset)  in io_mapping_map_local_wc()  argument
90 	BUG_ON(offset >= mapping->size);  in io_mapping_map_local_wc()
91 	phys_addr = mapping->base + offset;  in io_mapping_map_local_wc()
92 	return __iomap_local_pfn_prot(PHYS_PFN(phys_addr), mapping->prot);  in io_mapping_map_local_wc()
101 io_mapping_map_wc(struct io_mapping *mapping,  in io_mapping_map_wc()  argument
107 	BUG_ON(offset >= mapping->size);  in io_mapping_map_wc()
108 	phys_addr = mapping->base + offset;  in io_mapping_map_wc()
141 io_mapping_fini(struct io_mapping *mapping)  in io_mapping_fini()  argument
143 	iounmap(mapping->iomem);  in io_mapping_fini()
148 io_mapping_map_wc(struct io_mapping *mapping,  in io_mapping_map_wc()  argument
152 	return mapping->iomem + offset;  in io_mapping_map_wc()
162 io_mapping_map_atomic_wc(struct io_mapping *mapping,  in io_mapping_map_atomic_wc()  argument
167 	return io_mapping_map_wc(mapping, offset, PAGE_SIZE);  in io_mapping_map_atomic_wc()
179 io_mapping_map_local_wc(struct io_mapping *mapping, unsigned long offset)  in io_mapping_map_local_wc()  argument
181 	return io_mapping_map_wc(mapping, offset, PAGE_SIZE);  in io_mapping_map_local_wc()