Re: [RFC] iommu: qcom-iommu-v0 IOMMU

2014-07-10 Thread Rob Clark
On Thu, Jul 10, 2014 at 5:53 PM, Stephen Boyd wrote: > On 07/10, Rob Clark wrote: >> So, in it's current form, this is superficially a copy of msm_iommu >> plus DT conversion. But the pre-DT IOMMU driver had fairly different >> structure.. ie. psuedo root device, with IOMMU devices hanging off >>

Re: [RFC] iommu: qcom-iommu-v0 IOMMU

2014-07-10 Thread Stephen Boyd
On 07/10, Rob Clark wrote: > So, in it's current form, this is superficially a copy of msm_iommu > plus DT conversion. But the pre-DT IOMMU driver had fairly different > structure.. ie. psuedo root device, with IOMMU devices hanging off > that, and context devices hanging off that. The context de

[RFC] iommu: qcom-iommu-v0 IOMMU

2014-07-10 Thread Rob Clark
So, in it's current form, this is superficially a copy of msm_iommu plus DT conversion. But the pre-DT IOMMU driver had fairly different structure.. ie. psuedo root device, with IOMMU devices hanging off that, and context devices hanging off that. The context devices were what the client device w