117 			pgd_t *pgd;  in sync_global_pgds()  local
120 			pgd = (pgd_t *)page_address(page) + pgd_index(address);  in sync_global_pgds()
125 			if (pgd_none(*pgd))  in sync_global_pgds()
126 				set_pgd(pgd, *pgd_ref);  in sync_global_pgds()
128 				BUG_ON(pgd_page_vaddr(*pgd)  in sync_global_pgds()
160 static pud_t *fill_pud(pgd_t *pgd, unsigned long vaddr)  in fill_pud()  argument
162 	if (pgd_none(*pgd)) {  in fill_pud()
164 		pgd_populate(&init_mm, pgd, pud);  in fill_pud()
165 		if (pud != pud_offset(pgd, 0))  in fill_pud()
167 			       pud, pud_offset(pgd, 0));  in fill_pud()
169 	return pud_offset(pgd, vaddr);  in fill_pud()
216 	pgd_t *pgd;  in set_pte_vaddr()  local
221 	pgd = pgd_offset_k(vaddr);  in set_pte_vaddr()
222 	if (pgd_none(*pgd)) {  in set_pte_vaddr()
227 	pud_page = (pud_t*)pgd_page_vaddr(*pgd);  in set_pte_vaddr()
233 	pgd_t *pgd;  in populate_extra_pmd()  local
236 	pgd = pgd_offset_k(vaddr);  in populate_extra_pmd()
237 	pud = fill_pud(pgd, vaddr);  in populate_extra_pmd()
255 	pgd_t *pgd;  in __init_extra_mapping()  local
261 		pgd = pgd_offset_k((unsigned long)__va(phys));  in __init_extra_mapping()
262 		if (pgd_none(*pgd)) {  in __init_extra_mapping()
264 			set_pgd(pgd, __pgd(__pa(pud) | _KERNPG_TABLE |  in __init_extra_mapping()
267 		pud = pud_offset(pgd, (unsigned long)__va(phys));  in __init_extra_mapping()
572 		pgd_t *pgd = pgd_offset_k(start);  in kernel_physical_mapping_init()  local
580 		if (pgd_val(*pgd)) {  in kernel_physical_mapping_init()
581 			pud = map_low_page((pud_t *)pgd_page_vaddr(*pgd));  in kernel_physical_mapping_init()
594 		pgd_populate(&init_mm, pgd, __va(pud_phys));  in kernel_physical_mapping_init()
808 	pgd_t *pgd;  in kern_addr_valid()  local
816 	pgd = pgd_offset_k(addr);  in kern_addr_valid()
817 	if (pgd_none(*pgd))  in kern_addr_valid()
820 	pud = pud_offset(pgd, addr);  in kern_addr_valid()
916 	pgd_t *pgd;  in vmemmap_populate()  local
923 		pgd = vmemmap_pgd_populate(addr, node);  in vmemmap_populate()
924 		if (!pgd)  in vmemmap_populate()
927 		pud = vmemmap_pud_populate(pgd, addr, node);  in vmemmap_populate()