128 static void swiotlb_adjust_nareas(unsigned int nareas)  in swiotlb_adjust_nareas()  argument
130 	if (!nareas)  in swiotlb_adjust_nareas()
131 		nareas = 1;  in swiotlb_adjust_nareas()
132 	else if (!is_power_of_2(nareas))  in swiotlb_adjust_nareas()
133 		nareas = roundup_pow_of_two(nareas);  in swiotlb_adjust_nareas()
135 	default_nareas = nareas;  in swiotlb_adjust_nareas()
137 	pr_info("area num %d.\n", nareas);  in swiotlb_adjust_nareas()
153 static unsigned int limit_nareas(unsigned int nareas, unsigned long nslots)  in limit_nareas()  argument
155 	if (nslots < nareas * IO_TLB_SEGSIZE)  in limit_nareas()
157 	return nareas;  in limit_nareas()
289 		bool late_alloc, unsigned int nareas)  in swiotlb_init_io_tlb_mem()  argument
298 	mem->nareas = nareas;  in swiotlb_init_io_tlb_mem()
299 	mem->area_nslabs = nslabs / mem->nareas;  in swiotlb_init_io_tlb_mem()
303 	for (i = 0; i < mem->nareas; i++) {  in swiotlb_init_io_tlb_mem()
368 	unsigned int nareas;  in swiotlb_init_remap()  local
381 	nareas = limit_nareas(default_nareas, nslabs);  in swiotlb_init_remap()
386 		nareas = limit_nareas(nareas, nslabs);  in swiotlb_init_remap()
432 	unsigned int nareas;  in swiotlb_init_late()  local
478 	nareas = limit_nareas(default_nareas, nslabs);  in swiotlb_init_late()
479 	area_order = get_order(array_size(sizeof(*mem->areas), nareas));  in swiotlb_init_late()
493 				nareas);  in swiotlb_init_late()
526 			mem->nareas));  in swiotlb_exit()
532 			array_size(sizeof(*mem->areas), mem->nareas));  in swiotlb_exit()
667 	BUG_ON(area_index >= mem->nareas);  in swiotlb_do_find_slots()
741 	int start = raw_smp_processor_id() & (mem->nareas - 1);  in swiotlb_find_slots()
749 		if (++i >= mem->nareas)  in swiotlb_find_slots()
761 	for (i = 0; i < mem->nareas; i++)  in mem_used()
838 	BUG_ON(aindex >= mem->nareas);  in swiotlb_release_slots()
1030 	unsigned int nareas = 1;  in rmem_swiotlb_device_init()  local
1053 		mem->areas = kcalloc(nareas, sizeof(*mem->areas),  in rmem_swiotlb_device_init()
1064 					false, nareas);  in rmem_swiotlb_device_init()