Messages in this thread | | | Date | Tue, 28 Mar 2017 22:56:16 +0200 | From | 'Joerg Roedel' <> | Subject | Re: [PATCH] PCI: Blacklist AMD Stoney GPU devices for ATS |
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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
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