On 2015/11/27 19:49, Joerg Roedel wrote: > On Fri, Nov 20, 2015 at 10:25:06AM +0800, Chen Feng wrote: >> eg: >> struct iommu_domain *domain = iommu_domain_alloc(bus); >> iommu_attach_device(domain, dev); >> struct iova_domain *iovad = (struct iova_domain *)m_dev->archdata.iommu; >> struct iova * t_iova = alloc_iova(iovad, size, limit_pfn, align); >> iommu_map(domain, t_iova->pfn_lo << 12, phy_addr, size, port); > > Any reason the media subsystem should use the iommu-api directly, and > not the dma-api? You can make your iommu available by adapting the > common dma-iommu implementation from Robin Murphy to your iommu to make > it usable through the dma-api. >
ok, I will change this to dma-api. Since v1 version, the dma-api was not ok for arm64. I will do this with dma-api function. > > Joerg > > > . > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
