461 static int active_cacheline_read_overlap(phys_addr_t cln)  in active_cacheline_read_overlap()  argument
466 		if (radix_tree_tag_get(&dma_active_cacheline, cln, i))  in active_cacheline_read_overlap()
471 static int active_cacheline_set_overlap(phys_addr_t cln, int overlap)  in active_cacheline_set_overlap()  argument
480 			radix_tree_tag_set(&dma_active_cacheline, cln, i);  in active_cacheline_set_overlap()
482 			radix_tree_tag_clear(&dma_active_cacheline, cln, i);  in active_cacheline_set_overlap()
487 static void active_cacheline_inc_overlap(phys_addr_t cln)  in active_cacheline_inc_overlap()  argument
489 	int overlap = active_cacheline_read_overlap(cln);  in active_cacheline_inc_overlap()
491 	overlap = active_cacheline_set_overlap(cln, ++overlap);  in active_cacheline_inc_overlap()
501 		  ACTIVE_CACHELINE_MAX_OVERLAP, &cln);  in active_cacheline_inc_overlap()
504 static int active_cacheline_dec_overlap(phys_addr_t cln)  in active_cacheline_dec_overlap()  argument
506 	int overlap = active_cacheline_read_overlap(cln);  in active_cacheline_dec_overlap()
508 	return active_cacheline_set_overlap(cln, --overlap);  in active_cacheline_dec_overlap()
513 	phys_addr_t cln = to_cacheline_number(entry);  in active_cacheline_insert()  local
525 	rc = radix_tree_insert(&dma_active_cacheline, cln, entry);  in active_cacheline_insert()
527 		active_cacheline_inc_overlap(cln);  in active_cacheline_insert()
535 	phys_addr_t cln = to_cacheline_number(entry);  in active_cacheline_remove()  local
547 	if (active_cacheline_dec_overlap(cln) < 0)  in active_cacheline_remove()
548 		radix_tree_delete(&dma_active_cacheline, cln);  in active_cacheline_remove()
567 	phys_addr_t cln;  in debug_dma_assert_idle()  local
575 	cln = (phys_addr_t) page_to_pfn(page) << CACHELINE_PER_PAGE_SHIFT;  in debug_dma_assert_idle()
577 	nents = radix_tree_gang_lookup(&dma_active_cacheline, results, cln,  in debug_dma_assert_idle()
582 		if (ent_cln == cln) {  in debug_dma_assert_idle()
585 		} else if (ent_cln >= cln + CACHELINES_PER_PAGE)  in debug_dma_assert_idle()
593 	cln = to_cacheline_number(entry);  in debug_dma_assert_idle()
596 		   &cln);  in debug_dma_assert_idle()