73 static unsigned long pfn_first(struct dev_pagemap *pgmap, int range_id)  in pfn_first()  argument
75 	struct range *range = &pgmap->ranges[range_id];  in pfn_first()
78 	if (range_id)  in pfn_first()
83 static unsigned long pfn_end(struct dev_pagemap *pgmap, int range_id)  in pfn_end()  argument
85 	const struct range *range = &pgmap->ranges[range_id];  in pfn_end()
124 static void pageunmap_range(struct dev_pagemap *pgmap, int range_id)  in pageunmap_range()  argument
126 	struct range *range = &pgmap->ranges[range_id];  in pageunmap_range()
131 	first_page = pfn_to_page(pfn_first(pgmap, range_id));  in pageunmap_range()
186 		int range_id, int nid)  in pagemap_range()  argument
188 	struct range *range = &pgmap->ranges[range_id];  in pagemap_range()
192 	if (WARN_ONCE(pgmap_altmap(pgmap) && range_id > 0,  in pagemap_range()
280 	percpu_ref_get_many(pgmap->ref, pfn_end(pgmap, range_id)  in pagemap_range()
281 			- pfn_first(pgmap, range_id));  in pagemap_range()