21 static inline void remap_area_pte(pte_t * pte, unsigned long address,  in remap_area_pte()  argument
29 	address &= ~PMD_MASK;  in remap_area_pte()
30 	end = address + size;  in remap_area_pte()
33 	BUG_ON(address >= end);  in remap_area_pte()
41 		address += PAGE_SIZE;  in remap_area_pte()
44 	} while (address && (address < end));  in remap_area_pte()
47 static inline int remap_area_pmd(pmd_t * pmd, unsigned long address,  in remap_area_pmd()  argument
52 	address &= ~PGDIR_MASK;  in remap_area_pmd()
53 	end = address + size;  in remap_area_pmd()
56 	phys_addr -= address;  in remap_area_pmd()
57 	BUG_ON(address >= end);  in remap_area_pmd()
59 		pte_t * pte = pte_alloc_kernel(pmd, address);  in remap_area_pmd()
62 		remap_area_pte(pte, address, end - address, address + phys_addr, flags);  in remap_area_pmd()
63 		address = (address + PMD_SIZE) & PMD_MASK;  in remap_area_pmd()
65 	} while (address && (address < end));  in remap_area_pmd()
69 static int remap_area_pages(unsigned long address, phys_addr_t phys_addr,  in remap_area_pages()  argument
74 	unsigned long end = address + size;  in remap_area_pages()
76 	phys_addr -= address;  in remap_area_pages()
77 	dir = pgd_offset(&init_mm, address);  in remap_area_pages()
79 	BUG_ON(address >= end);  in remap_area_pages()
85 		pud = pud_alloc(&init_mm, dir, address);  in remap_area_pages()
88 		pmd = pmd_alloc(&init_mm, pud, address);  in remap_area_pages()
91 		if (remap_area_pmd(pmd, address, end - address,  in remap_area_pages()
92 					 phys_addr + address, flags))  in remap_area_pages()
95 		address = (address + PGDIR_SIZE) & PGDIR_MASK;  in remap_area_pages()
97 	} while (address && (address < end));  in remap_area_pages()
121  * Remap an arbitrary physical address space into the kernel virtual
122  * address space. Needed when the kernel wants to access high addresses
147 	 * Map uncached objects in the low 512mb of address space using KSEG1,  in __ioremap()
200 		printk(KERN_ERR "iounmap: bad address %p\n", addr);  in __iounmap()