iommu_dma_map_phys
sg_dma_address(s) = iommu_dma_map_phys(dev, sg_phys(s),
dma_addr_t iommu_dma_map_phys(struct device *dev, phys_addr_t phys, size_t size,
addr = iommu_dma_map_phys(dev, phys, size, dir, attrs);
*dma_handle = iommu_dma_map_phys(dev, phys, size, dir,