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Re: [PATCH V5 RESEND 0/3] Add iommu support for hi6220 HiKey board

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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.


	Joerg

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[PATCH V5 RESEND 0/3] Add iommu support for hi6220 HiKey board Chen Feng <puck.chen@hisilicon.com> - 2015-11-20 03:30 +0100
  [PATCH V5 RESEND 3/3] arm64: dts: Add dts node for hi6220 smmu driver Chen Feng <puck.chen@hisilicon.com> - 2015-11-20 03:30 +0100
  [PATCH V5 RESEND 2/3] iommu/hisilicon: Add hi6220-SoC smmu driver Chen Feng <puck.chen@hisilicon.com> - 2015-11-20 03:30 +0100
    Re: [PATCH V5 RESEND 2/3] iommu/hisilicon: Add hi6220-SoC smmu driver Joerg Roedel <joro@8bytes.org> - 2015-11-27 13:10 +0100
      Re: [PATCH V5 RESEND 2/3] iommu/hisilicon: Add hi6220-SoC smmu driver chenfeng <puck.chen@hisilicon.com> - 2015-11-28 03:20 +0100
        Re: [PATCH V5 RESEND 2/3] iommu/hisilicon: Add hi6220-SoC smmu driver Joerg Roedel <joro@8bytes.org> - 2015-11-28 13:30 +0100
  [PATCH V5 RESEND 1/3] docs: iommu: Documentation for iommu in hi6220 SoC Chen Feng <puck.chen@hisilicon.com> - 2015-11-20 03:30 +0100
    Re: [PATCH V5 RESEND 1/3] docs: iommu: Documentation for iommu in  hi6220 SoC Rob Herring <robh@kernel.org> - 2015-11-20 15:30 +0100
  Re: [PATCH V5 RESEND 0/3] Add iommu support for hi6220 HiKey board Joerg Roedel <joro@8bytes.org> - 2015-11-27 12:50 +0100
    Re: [PATCH V5 RESEND 0/3] Add iommu support for hi6220 HiKey board chenfeng <puck.chen@hisilicon.com> - 2015-11-28 03:20 +0100

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