140 	int prot = coherent ? IOMMU_CACHE : 0;  in dma_direction_to_prot()  local
144 		return prot | IOMMU_READ | IOMMU_WRITE;  in dma_direction_to_prot()
146 		return prot | IOMMU_READ;  in dma_direction_to_prot()
148 		return prot | IOMMU_WRITE;  in dma_direction_to_prot()
282 		gfp_t gfp, int prot, dma_addr_t *handle,  in iommu_dma_alloc()  argument
307 	if (!(prot & IOMMU_CACHE)) {  in iommu_dma_alloc()
320 	if (iommu_map_sg(domain, dma_addr, sgt.sgl, sgt.orig_nents, prot)  in iommu_dma_alloc()
363 		unsigned long offset, size_t size, int prot)  in iommu_dma_map_page()  argument
377 	if (iommu_map(domain, dma_addr, phys - iova_off, len, prot)) {  in iommu_dma_map_page()
441 		int nents, int prot)  in iommu_dma_map_sg()  argument
494 	if (iommu_map_sg(domain, dma_addr, sg, nents, prot) < iova_len)  in iommu_dma_map_sg()