On Thu, Dec 26, 2019 at 02:17:06PM -0800, Bjorn Andersson wrote: > These patches implements the stream mapping inheritance that's necessary in > order to not hit a security violation as the display hardware looses its > stream > mapping during initialization of arm-smmu in various Qualcomm platforms. > > This was previously posted as an RFC [1], changes since then involves the > rebase and migration of the read-back code to the Qualcomm specific > implementation, the mapping is maintained indefinitely - to handle probe > deferring clients - and rewritten commit messages.
I don't think we should solve this in a Qualcomm-specific manner. Please can you take a look at the proposal from Thierry [1] and see whether or not it works for you? Thanks, Will [1] https://lore.kernel.org/lkml/[email protected] _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
