695 	struct knav_region *region;  in kdesc_fill_pool()  local
698 	region = pool->region;  in kdesc_fill_pool()
699 	pool->desc_size = region->desc_size;  in kdesc_fill_pool()
704 		dma_addr = region->dma_start + (region->desc_size * index);  in kdesc_fill_pool()
743 	return pool->region->dma_start + (virt - pool->region->virt_start);  in knav_pool_desc_virt_to_dma()
750 	return pool->region->virt_start + (dma - pool->region->dma_start);  in knav_pool_desc_dma_to_virt()
767 	struct knav_region *reg_itr, *region = NULL;  in knav_pool_create()  local
789 		region = reg_itr;  in knav_pool_create()
793 	if (!region) {  in knav_pool_create()
814 	if (num_desc > (region->num_desc - region->used_desc)) {  in knav_pool_create()
827 	node = &region->pools;  in knav_pool_create()
828 	list_for_each_entry(pi, &region->pools, region_inst) {  in knav_pool_create()
838 		pool->region = region;  in knav_pool_create()
841 		region->used_desc += num_desc;  in knav_pool_create()
875 	if (!pool->region)  in knav_pool_destroy()
881 	pool->region->used_desc -= pool->num_desc;  in knav_pool_destroy()
922 	knav_queue_push(pool->queue, dma, pool->region->desc_size, 0);  in knav_pool_desc_put()
941 	size = min(size, pool->region->desc_size);  in knav_pool_desc_map()
968 	desc_sz = min(dma_sz, pool->region->desc_size);  in knav_pool_desc_unmap()
989 					struct knav_region *region)  in knav_queue_setup_region()  argument
995 	int id = region->id;  in knav_queue_setup_region()
999 	if (!region->num_desc) {  in knav_queue_setup_region()
1000 		dev_warn(kdev->dev, "unused region %s\n", region->name);  in knav_queue_setup_region()
1005 	hw_num_desc = ilog2(region->num_desc - 1) + 1;  in knav_queue_setup_region()
1008 	if (region->num_desc < 32) {  in knav_queue_setup_region()
1009 		region->num_desc = 0;  in knav_queue_setup_region()
1011 			 region->name);  in knav_queue_setup_region()
1015 	size = region->num_desc * region->desc_size;  in knav_queue_setup_region()
1016 	region->virt_start = alloc_pages_exact(size, GFP_KERNEL | GFP_DMA |  in knav_queue_setup_region()
1018 	if (!region->virt_start) {  in knav_queue_setup_region()
1019 		region->num_desc = 0;  in knav_queue_setup_region()
1021 			region->name);  in knav_queue_setup_region()
1024 	region->virt_end = region->virt_start + size;  in knav_queue_setup_region()
1025 	page = virt_to_page(region->virt_start);  in knav_queue_setup_region()
1027 	region->dma_start = dma_map_page(kdev->dev, page, 0, size,  in knav_queue_setup_region()
1029 	if (dma_mapping_error(kdev->dev, region->dma_start)) {  in knav_queue_setup_region()
1031 			region->name);  in knav_queue_setup_region()
1034 	region->dma_end = region->dma_start + size;  in knav_queue_setup_region()
1042 	pool->region_offset = region->num_desc;  in knav_queue_setup_region()
1043 	list_add(&pool->region_inst, &region->pools);  in knav_queue_setup_region()
1047 		region->name, id, region->desc_size, region->num_desc,  in knav_queue_setup_region()
1048 		region->link_index, &region->dma_start, &region->dma_end,  in knav_queue_setup_region()
1049 		region->virt_start, region->virt_end);  in knav_queue_setup_region()
1051 	hw_desc_size = (region->desc_size / 16) - 1;  in knav_queue_setup_region()
1056 		writel_relaxed((u32)region->dma_start, &regs->base);  in knav_queue_setup_region()
1057 		writel_relaxed(region->link_index, &regs->start_index);  in knav_queue_setup_region()
1064 	if (region->dma_start)  in knav_queue_setup_region()
1065 		dma_unmap_page(kdev->dev, region->dma_start, size,  in knav_queue_setup_region()
1067 	if (region->virt_start)  in knav_queue_setup_region()
1068 		free_pages_exact(region->virt_start, size);  in knav_queue_setup_region()
1069 	region->num_desc = 0;  in knav_queue_setup_region()
1088 	struct knav_region *region;  in knav_queue_setup_regions()  local
1094 		region = devm_kzalloc(dev, sizeof(*region), GFP_KERNEL);  in knav_queue_setup_regions()
1095 		if (!region) {  in knav_queue_setup_regions()
1100 		region->name = knav_queue_find_name(child);  in knav_queue_setup_regions()
1101 		of_property_read_u32(child, "id", &region->id);  in knav_queue_setup_regions()
1104 			region->num_desc  = temp[0];  in knav_queue_setup_regions()
1105 			region->desc_size = temp[1];  in knav_queue_setup_regions()
1107 			dev_err(dev, "invalid region info %s\n", region->name);  in knav_queue_setup_regions()
1108 			devm_kfree(dev, region);  in knav_queue_setup_regions()
1113 			dev_err(dev, "No link info for %s\n", region->name);  in knav_queue_setup_regions()
1114 			devm_kfree(dev, region);  in knav_queue_setup_regions()
1118 					   &region->link_index);  in knav_queue_setup_regions()
1121 				region->name);  in knav_queue_setup_regions()
1122 			devm_kfree(dev, region);  in knav_queue_setup_regions()
1126 		INIT_LIST_HEAD(&region->pools);  in knav_queue_setup_regions()
1127 		list_add_tail(&region->list, &kdev->regions);  in knav_queue_setup_regions()
1135 	for_each_region(kdev, region)  in knav_queue_setup_regions()
1136 		knav_queue_setup_region(kdev, region);  in knav_queue_setup_regions()
1357 	struct knav_region *region;  in knav_queue_free_regions()  local
1362 		region = first_region(kdev);  in knav_queue_free_regions()
1363 		if (!region)  in knav_queue_free_regions()
1365 		list_for_each_entry_safe(pool, tmp, &region->pools, region_inst)  in knav_queue_free_regions()
1368 		size = region->virt_end - region->virt_start;  in knav_queue_free_regions()
1370 			free_pages_exact(region->virt_start, size);  in knav_queue_free_regions()
1371 		list_del(&region->list);  in knav_queue_free_regions()
1372 		devm_kfree(kdev->dev, region);  in knav_queue_free_regions()