void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size, struct iommu_ops *iommu, bool coherent) { if (!dev->archdata.dma_ops) dev->archdata.dma_ops = &swiotlb_dma_ops;
dev->archdata.dma_coherent = coherent; __iommu_setup_dma_ops(dev, dma_base, size, iommu);
}