87 static void cma_clear_bitmap(struct cma *cma, unsigned long pfn,  in cma_clear_bitmap()  argument
92 	bitmap_no = (pfn - cma->base_pfn) >> cma->order_per_bit;  in cma_clear_bitmap()
103 	unsigned long base_pfn = cma->base_pfn, pfn = base_pfn;  in cma_activate_area()  local
112 	WARN_ON_ONCE(!pfn_valid(pfn));  in cma_activate_area()
113 	zone = page_zone(pfn_to_page(pfn));  in cma_activate_area()
118 		base_pfn = pfn;  in cma_activate_area()
119 		for (j = pageblock_nr_pages; j; --j, pfn++) {  in cma_activate_area()
120 			WARN_ON_ONCE(!pfn_valid(pfn));  in cma_activate_area()
127 			if (page_zone(pfn_to_page(pfn)) != zone)  in cma_activate_area()
407 	unsigned long pfn = -1;  in cma_alloc()  local
447 		pfn = cma->base_pfn + (bitmap_no << cma->order_per_bit);  in cma_alloc()
449 		ret = alloc_contig_range(pfn, pfn + count, MIGRATE_CMA,  in cma_alloc()
453 			page = pfn_to_page(pfn);  in cma_alloc()
457 		cma_clear_bitmap(cma, pfn, count);  in cma_alloc()
462 			 __func__, pfn_to_page(pfn));  in cma_alloc()
467 	trace_cma_alloc(pfn, page, count, align);  in cma_alloc()
491 	unsigned long pfn;  in cma_release()  local
498 	pfn = page_to_pfn(pages);  in cma_release()
500 	if (pfn < cma->base_pfn || pfn >= cma->base_pfn + cma->count)  in cma_release()
503 	VM_BUG_ON(pfn + count > cma->base_pfn + cma->count);  in cma_release()
505 	free_contig_range(pfn, count);  in cma_release()
506 	cma_clear_bitmap(cma, pfn, count);  in cma_release()
507 	trace_cma_release(pfn, pages, count);  in cma_release()