Lines Matching refs:region

688 	struct knav_region *region;
691 	region = pool->region;
692 	pool->desc_size = region->desc_size;
697 		dma_addr = region->dma_start + (region->desc_size * index);
736 	return pool->region->dma_start + (virt - pool->region->virt_start);
743 	return pool->region->virt_start + (dma - pool->region->dma_start);
751  * @region_id:		- QMSS region id from which the descriptors are to be
760 	struct knav_region *reg_itr, *region = NULL;
781 		region = reg_itr;
785 	if (!region) {
786 		dev_err(kdev->dev, "region-id(%d) not found\n", region_id);
806 	if (num_desc > (region->num_desc - region->used_desc)) {
807 		dev_err(kdev->dev, "out of descs in region(%d) for pool(%s)\n",
813 	/* Region maintains a sorted (by region offset) list of pools
818 	node = &region->pools;
819 	list_for_each_entry(iter, &region->pools, region_inst) {
829 		pool->region = region;
832 		region->used_desc += num_desc;
836 		dev_err(kdev->dev, "pool(%s) create failed: fragmented desc pool in region(%d)\n",
866 	if (!pool->region)
872 	pool->region->used_desc -= pool->num_desc;
914 	knav_queue_push(pool->queue, dma, pool->region->desc_size, 0);
933 	size = min(size, pool->region->desc_size);
960 	desc_sz = min(dma_sz, pool->region->desc_size);
981 					struct knav_region *region)
987 	int id = region->id;
990 	/* unused region? */
991 	if (!region->num_desc) {
992 		dev_warn(kdev->dev, "unused region %s\n", region->name);
997 	hw_num_desc = ilog2(region->num_desc - 1) + 1;
1000 	if (region->num_desc < 32) {
1001 		region->num_desc = 0;
1002 		dev_warn(kdev->dev, "too few descriptors in region %s\n",
1003 			 region->name);
1007 	size = region->num_desc * region->desc_size;
1008 	region->virt_start = alloc_pages_exact(size, GFP_KERNEL | GFP_DMA |
1010 	if (!region->virt_start) {
1011 		region->num_desc = 0;
1012 		dev_err(kdev->dev, "memory alloc failed for region %s\n",
1013 			region->name);
1016 	region->virt_end = region->virt_start + size;
1017 	page = virt_to_page(region->virt_start);
1019 	region->dma_start = dma_map_page(kdev->dev, page, 0, size,
1021 	if (dma_mapping_error(kdev->dev, region->dma_start)) {
1022 		dev_err(kdev->dev, "dma map failed for region %s\n",
1023 			region->name);
1026 	region->dma_end = region->dma_start + size;
1034 	pool->region_offset = region->num_desc;
1035 	list_add(&pool->region_inst, &region->pools);
1038 		"region %s (%d): size:%d, link:%d@%d, dma:%pad-%pad, virt:%p-%p\n",
1039 		region->name, id, region->desc_size, region->num_desc,
1040 		region->link_index, &region->dma_start, &region->dma_end,
1041 		region->virt_start, region->virt_end);
1043 	hw_desc_size = (region->desc_size / 16) - 1;
1048 		writel_relaxed((u32)region->dma_start, &regs->base);
1049 		writel_relaxed(region->link_index, &regs->start_index);
1056 	if (region->dma_start)
1057 		dma_unmap_page(kdev->dev, region->dma_start, size,
1059 	if (region->virt_start)
1060 		free_pages_exact(region->virt_start, size);
1061 	region->num_desc = 0;
1080 	struct knav_region *region;
1086 		region = devm_kzalloc(dev, sizeof(*region), GFP_KERNEL);
1087 		if (!region) {
1089 			dev_err(dev, "out of memory allocating region\n");
1093 		region->name = knav_queue_find_name(child);
1094 		of_property_read_u32(child, "id", &region->id);
1095 		ret = of_property_read_u32_array(child, "region-spec", temp, 2);
1097 			region->num_desc  = temp[0];
1098 			region->desc_size = temp[1];
1100 			dev_err(dev, "invalid region info %s\n", region->name);
1101 			devm_kfree(dev, region);
1106 			dev_err(dev, "No link info for %s\n", region->name);
1107 			devm_kfree(dev, region);
1111 					   &region->link_index);
1114 				region->name);
1115 			devm_kfree(dev, region);
1119 		INIT_LIST_HEAD(&region->pools);
1120 		list_add_tail(&region->list, &kdev->regions);
1123 		dev_err(dev, "no valid region information found\n");
1128 	for_each_region(kdev, region)
1129 		knav_queue_setup_region(kdev, region);
1349 	struct knav_region *region;
1354 		region = first_region(kdev);
1355 		if (!region)
1357 		list_for_each_entry_safe(pool, tmp, &region->pools, region_inst)
1360 		size = region->virt_end - region->virt_start;
1362 			free_pages_exact(region->virt_start, size);
1363 		list_del(&region->list);
1364 		devm_kfree(kdev->dev, region);