391 	void *vaddr;  in persistent_ram_vmap()  local
412 	vaddr = vmap(pages, page_count, VM_MAP, prot);  in persistent_ram_vmap()
415 	return vaddr;  in persistent_ram_vmap()
447 		prz->vaddr = persistent_ram_vmap(start, size, memtype);  in persistent_ram_buffer_map()
449 		prz->vaddr = persistent_ram_iomap(start, size, memtype);  in persistent_ram_buffer_map()
451 	if (!prz->vaddr) {  in persistent_ram_buffer_map()
457 	prz->buffer = prz->vaddr + offset_in_page(start);  in persistent_ram_buffer_map()
501 	if (prz->vaddr) {  in persistent_ram_free()
503 			vunmap(prz->vaddr);  in persistent_ram_free()
505 			iounmap(prz->vaddr);  in persistent_ram_free()
508 		prz->vaddr = NULL;  in persistent_ram_free()