73 DEFINE_POPULATE(pgd_populate, pgd, p4d, init)
144 			pgd_t *pgd;  in sync_global_pgds_l5()  local
147 			pgd = (pgd_t *)page_address(page) + pgd_index(addr);  in sync_global_pgds_l5()
152 			if (!pgd_none(*pgd_ref) && !pgd_none(*pgd))  in sync_global_pgds_l5()
153 				BUG_ON(pgd_page_vaddr(*pgd) != pgd_page_vaddr(*pgd_ref));  in sync_global_pgds_l5()
155 			if (pgd_none(*pgd))  in sync_global_pgds_l5()
156 				set_pgd(pgd, *pgd_ref);  in sync_global_pgds_l5()
185 			pgd_t *pgd;  in sync_global_pgds_l4()  local
189 			pgd = (pgd_t *)page_address(page) + pgd_index(addr);  in sync_global_pgds_l4()
190 			p4d = p4d_offset(pgd, addr);  in sync_global_pgds_l4()
243 static p4d_t *fill_p4d(pgd_t *pgd, unsigned long vaddr)  in fill_p4d()  argument
245 	if (pgd_none(*pgd)) {  in fill_p4d()
247 		pgd_populate(&init_mm, pgd, p4d);  in fill_p4d()
248 		if (p4d != p4d_offset(pgd, 0))  in fill_p4d()
250 			       p4d, p4d_offset(pgd, 0));  in fill_p4d()
252 	return p4d_offset(pgd, vaddr);  in fill_p4d()
321 	pgd_t *pgd;  in set_pte_vaddr()  local
326 	pgd = pgd_offset_k(vaddr);  in set_pte_vaddr()
327 	if (pgd_none(*pgd)) {  in set_pte_vaddr()
333 	p4d_page = p4d_offset(pgd, 0);  in set_pte_vaddr()
339 	pgd_t *pgd;  in populate_extra_pmd()  local
343 	pgd = pgd_offset_k(vaddr);  in populate_extra_pmd()
344 	p4d = fill_p4d(pgd, vaddr);  in populate_extra_pmd()
363 	pgd_t *pgd;  in __init_extra_mapping()  local
373 		pgd = pgd_offset_k((unsigned long)__va(phys));  in __init_extra_mapping()
374 		if (pgd_none(*pgd)) {  in __init_extra_mapping()
376 			set_pgd(pgd, __pgd(__pa(p4d) | _KERNPG_TABLE |  in __init_extra_mapping()
379 		p4d = p4d_offset(pgd, (unsigned long)__va(phys));  in __init_extra_mapping()
739 		pgd_t *pgd = pgd_offset_k(vaddr);  in __kernel_physical_mapping_init()  local
744 		if (pgd_val(*pgd)) {  in __kernel_physical_mapping_init()
745 			p4d = (p4d_t *)pgd_page_vaddr(*pgd);  in __kernel_physical_mapping_init()
759 			pgd_populate_init(&init_mm, pgd, p4d, init);  in __kernel_physical_mapping_init()
761 			p4d_populate_init(&init_mm, p4d_offset(pgd, vaddr),  in __kernel_physical_mapping_init()
1180 	pgd_t *pgd;  in remove_pagetable()  local
1186 		pgd = pgd_offset_k(addr);  in remove_pagetable()
1187 		if (!pgd_present(*pgd))  in remove_pagetable()
1190 		p4d = p4d_offset(pgd, 0);  in remove_pagetable()
1246 		pgd_t *pgd = pgd_offset_k(addr);  in preallocate_vmalloc_pages()  local
1251 		p4d = p4d_alloc(&init_mm, pgd, addr);  in preallocate_vmalloc_pages()
1378 	pgd_t *pgd;  in kern_addr_valid()  local
1387 	pgd = pgd_offset_k(addr);  in kern_addr_valid()
1388 	if (pgd_none(*pgd))  in kern_addr_valid()
1391 	p4d = p4d_offset(pgd, addr);  in kern_addr_valid()
1497 	pgd_t *pgd;  in vmemmap_populate_hugepages()  local
1505 		pgd = vmemmap_pgd_populate(addr, node);  in vmemmap_populate_hugepages()
1506 		if (!pgd)  in vmemmap_populate_hugepages()
1509 		p4d = vmemmap_p4d_populate(pgd, addr, node);  in vmemmap_populate_hugepages()
1581 	pgd_t *pgd;  in register_page_bootmem_memmap()  local
1591 		pgd = pgd_offset_k(addr);  in register_page_bootmem_memmap()
1592 		if (pgd_none(*pgd)) {  in register_page_bootmem_memmap()
1596 		get_page_bootmem(section_nr, pgd_page(*pgd), MIX_SECTION_INFO);  in register_page_bootmem_memmap()
1598 		p4d = p4d_offset(pgd, addr);  in register_page_bootmem_memmap()