753 	unsigned long pfn = pte_pfn(pte);  in vm_normal_page()  local
762 		if (!is_zero_pfn(pfn))  in vm_normal_page()
771 			if (!pfn_valid(pfn))  in vm_normal_page()
777 			if (pfn == vma->vm_pgoff + off)  in vm_normal_page()
784 	if (is_zero_pfn(pfn))  in vm_normal_page()
787 	if (unlikely(pfn > highest_memmap_pfn)) {  in vm_normal_page()
797 	return pfn_to_page(pfn);  in vm_normal_page()
804 	unsigned long pfn = pmd_pfn(pmd);  in vm_normal_page_pmd()  local
813 			if (!pfn_valid(pfn))  in vm_normal_page_pmd()
819 			if (pfn == vma->vm_pgoff + off)  in vm_normal_page_pmd()
826 	if (is_zero_pfn(pfn))  in vm_normal_page_pmd()
828 	if (unlikely(pfn > highest_memmap_pfn))  in vm_normal_page_pmd()
836 	return pfn_to_page(pfn);  in vm_normal_page_pmd()
1560 			unsigned long pfn, pgprot_t prot)  in insert_pfn()  argument
1576 	entry = pte_mkspecial(pfn_pte(pfn, prot));  in insert_pfn()
1605 			unsigned long pfn)  in vm_insert_pfn()  argument
1619 	BUG_ON((vma->vm_flags & VM_MIXEDMAP) && pfn_valid(pfn));  in vm_insert_pfn()
1623 	if (track_pfn_insert(vma, &pgprot, pfn))  in vm_insert_pfn()
1626 	ret = insert_pfn(vma, addr, pfn, pgprot);  in vm_insert_pfn()
1633 			unsigned long pfn)  in vm_insert_mixed()  argument
1647 	if (!HAVE_PTE_SPECIAL && pfn_valid(pfn)) {  in vm_insert_mixed()
1650 		page = pfn_to_page(pfn);  in vm_insert_mixed()
1653 	return insert_pfn(vma, addr, pfn, vma->vm_page_prot);  in vm_insert_mixed()
1664 			unsigned long pfn, pgprot_t prot)  in remap_pte_range()  argument
1675 		set_pte_at(mm, addr, pte, pte_mkspecial(pfn_pte(pfn, prot)));  in remap_pte_range()
1676 		pfn++;  in remap_pte_range()
1685 			unsigned long pfn, pgprot_t prot)  in remap_pmd_range()  argument
1690 	pfn -= addr >> PAGE_SHIFT;  in remap_pmd_range()
1698 				pfn + (addr >> PAGE_SHIFT), prot))  in remap_pmd_range()
1706 			unsigned long pfn, pgprot_t prot)  in remap_pud_range()  argument
1711 	pfn -= addr >> PAGE_SHIFT;  in remap_pud_range()
1718 				pfn + (addr >> PAGE_SHIFT), prot))  in remap_pud_range()
1735 		    unsigned long pfn, unsigned long size, pgprot_t prot)  in remap_pfn_range()  argument
1764 		vma->vm_pgoff = pfn;  in remap_pfn_range()
1767 	err = track_pfn_remap(vma, &prot, pfn, addr, PAGE_ALIGN(size));  in remap_pfn_range()
1774 	pfn -= addr >> PAGE_SHIFT;  in remap_pfn_range()
1780 				pfn + (addr >> PAGE_SHIFT), prot);  in remap_pfn_range()
1786 		untrack_pfn(vma, pfn, PAGE_ALIGN(size));  in remap_pfn_range()
1807 	unsigned long vm_len, pfn, pages;  in vm_iomap_memory()  local
1818 	pfn = start >> PAGE_SHIFT;  in vm_iomap_memory()
1820 	if (pfn + pages < pfn)  in vm_iomap_memory()
1826 	pfn += vma->vm_pgoff;  in vm_iomap_memory()
1835 	return io_remap_pfn_range(vma, vma->vm_start, pfn, vm_len, vma->vm_page_prot);  in vm_iomap_memory()
3625 	unsigned long *pfn)  in follow_pfn()  argument
3637 	*pfn = pte_pfn(*ptep);  in follow_pfn()