181 	int ioptex;  in iommu_get_one()  local
187 	ioptex = bit_map_string_get(&iommu->usemap, npages, page_to_pfn(page));  in iommu_get_one()
188 	if (ioptex < 0)  in iommu_get_one()
190 	busa0 = iommu->start + (ioptex << PAGE_SHIFT);  in iommu_get_one()
191 	iopte0 = &iommu->page_table[ioptex];  in iommu_get_one()
287 	int ioptex;  in iommu_release_one()  local
291 	ioptex = (busa - iommu->start) >> PAGE_SHIFT;  in iommu_release_one()
293 		iopte_val(iommu->page_table[ioptex + i]) = 0;  in iommu_release_one()
297 	bit_map_clear(&iommu->usemap, ioptex, npages);  in iommu_release_one()
332 	int ioptex;  in iommu_map_dma_area()  local
339 	ioptex = bit_map_string_get(&iommu->usemap, len >> PAGE_SHIFT,  in iommu_map_dma_area()
341 	if (ioptex < 0)  in iommu_map_dma_area()
344 	iopte += ioptex;  in iommu_map_dma_area()
388 	*pba = iommu->start + (ioptex << PAGE_SHIFT);  in iommu_map_dma_area()
397 	int ioptex = (busa - iommu->start) >> PAGE_SHIFT;  in iommu_unmap_dma_area()  local
402 	iopte += ioptex;  in iommu_unmap_dma_area()
410 	bit_map_clear(&iommu->usemap, ioptex, len >> PAGE_SHIFT);  in iommu_unmap_dma_area()