On Thu, Jul 06, 2017 at 12:09:45PM +0100, Robin Murphy wrote: > I suppose another option is to just make the IOMMU and DMA ops a > self-contained non-modular driver mirroring the VT-d/AMD-Vi IOMMUs - > AFAICS it shouldn't have to be all that tightly coupled to the IPU bus > code, the latter more or less just needs to create the appropriate IOMMU > device for the driver to find.
I still haven't seen the driver code, but this seems to be best solution so far. Given that it's not a plug in device but part of an SOC that seems perfectly acceptable to me.
