But I think Prarit is right with this change. If the interface defines
this behavior the IOMMU drivers have to implement it. I am just
wondering that the problem never showed up before. The GART driver is a
few years old now.
Yeah, I'm not against fixing IOMMUs to make alloc_consistent return
the reqeuested size aligned memory. My point is that it's not likely
to fix anything. Even with the patch, we hit the above problem because
as I explained, the root cause of the problem is the boundary issue;
we need to fix pci-dma.c
Sorry, I misquoted code up there and was looking for a clear example of
where this would happen. The issue I'm trying to resolve didn't happen
on the skge -- it was just a convenient piece of code to examine and
point out ;)
P.
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