On Mon, 2017-10-09 at 10:20 +0100, Chris Wilson wrote: > We only apply the hugepage PD redirection inside the ppGTT, so during > i915_vma_insert() we want to exclude the GGTT from the additional > alignment constraints (thereby avoiding the extra GTT pressure from > fragmentation). Add an assert to document that intention alongside the > comment. > > v2: After discussion with Matthew, make it a blanket GGTT ban > (previously we allowed the expansion for appgtt, and so indirectly > ggtt). There are issues we need to fix before allowing the current > appgtt to be used with hugepages, and if we do, we probably want more > care over when to expand/align, as the mappable aperture inside the ggtt > is precious. > > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > Cc: Matthew Auld <matthew.william.auld@xxxxxxxxx> > Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx> > Reviewed-by: Matthew Auld <matthew.william.auld@xxxxxxxxx> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx> Regards, Joonas -- Joonas Lahtinen Open Source Technology Center Intel Corporation _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
