SPRD_IOMMU_PAGE_SIZE
dom->domain.pgsize_bitmap = SPRD_IOMMU_PAGE_SIZE;
size_t size = pgcount * SPRD_IOMMU_PAGE_SIZE;
pabase += SPRD_IOMMU_PAGE_SIZE;
size_t size = pgcount * SPRD_IOMMU_PAGE_SIZE;
pa = (pa << SPRD_IOMMU_PAGE_SHIFT) + ((iova - start) & (SPRD_IOMMU_PAGE_SIZE - 1));
sdev->prot_page_va = dma_alloc_coherent(dev, SPRD_IOMMU_PAGE_SIZE,
dma_free_coherent(sdev->dev, SPRD_IOMMU_PAGE_SIZE, sdev->prot_page_va, sdev->prot_page_pa);
dma_free_coherent(sdev->dev, SPRD_IOMMU_PAGE_SIZE, sdev->prot_page_va, sdev->prot_page_pa);