On Tue, Mar 28, 2017 at 08:37:01PM +0000, Deucher, Alexander wrote: > The question is, could the problem stem from flushing an entity that > didn't request it, or should that not matter? I guess it shouldn't > matter otherwise we'd see this on other platforms like Carrizo as > well. What do you mean by "didn't request it"? The IOMMU driver only sends io/tlb invalidations to devices it enabled ATS on. Joerg
