93 static void cma_clear_bitmap(struct cma *cma, unsigned long pfn,  in cma_clear_bitmap()  argument
98 	bitmap_no = (pfn - cma->base_pfn) >> cma->order_per_bit;  in cma_clear_bitmap()
108 	unsigned long base_pfn = cma->base_pfn, pfn;  in cma_activate_area()  local
124 	for (pfn = base_pfn + 1; pfn < base_pfn + cma->count; pfn++) {  in cma_activate_area()
125 		WARN_ON_ONCE(!pfn_valid(pfn));  in cma_activate_area()
126 		if (page_zone(pfn_to_page(pfn)) != zone)  in cma_activate_area()
130 	for (pfn = base_pfn; pfn < base_pfn + cma->count;  in cma_activate_area()
131 	     pfn += pageblock_nr_pages)  in cma_activate_area()
132 		init_cma_reserved_pageblock(pfn_to_page(pfn));  in cma_activate_area()
148 	for (pfn = base_pfn; pfn < base_pfn + cma->count; pfn++)  in cma_activate_area()
149 		free_reserved_page(pfn_to_page(pfn));  in cma_activate_area()
459 	unsigned long pfn = -1;  in cma_alloc()  local
532 		pfn = cma->base_pfn + (bitmap_no << cma->order_per_bit);  in cma_alloc()
534 			page = pfn_to_page(pfn);  in cma_alloc()
539 		ret = alloc_contig_range(pfn, pfn + count, MIGRATE_CMA, gfp_mask, &info);  in cma_alloc()
553 			page = pfn_to_page(pfn);  in cma_alloc()
557 		cma_clear_bitmap(cma, pfn, count);  in cma_alloc()
562 			 __func__, pfn_to_page(pfn));  in cma_alloc()
564 		trace_cma_alloc_busy_retry(cma->name, pfn, pfn_to_page(pfn),  in cma_alloc()
579 	trace_cma_alloc_finish(cma->name, pfn, page, count, align);  in cma_alloc()
626 	unsigned long pfn;  in cma_release()  local
633 	pfn = page_to_pfn(pages);  in cma_release()
635 	if (pfn < cma->base_pfn || pfn >= cma->base_pfn + cma->count)  in cma_release()
638 	VM_BUG_ON(pfn + count > cma->base_pfn + cma->count);  in cma_release()
640 		free_contig_range(pfn, count);  in cma_release()
641 	cma_clear_bitmap(cma, pfn, count);  in cma_release()
642 	trace_cma_release(cma->name, pfn, pages, count);  in cma_release()