Quoting Chris Wilson (2018-06-10 22:43:13) > When we update the gen6 ppgtt page directories, we do so by writing the > new address into a reserved slot in the GGTT. It appears that when the > GPU reads that entry from the gsm, it uses its small cache and that we > need to invalidate that cache after writing. We don't see an issue > currently as we prefill the ppgtt page directories on creation; and only > create the single aliasing_ppgtt long before we start using the GGTT > (and so before the cache mayhave a conflicting entry).
"may have" > > Signed-off-by: Chris Wilson <[email protected]> > Cc: Joonas Lahtinen <[email protected]> > Cc: Mika Kuoppala <[email protected]> > Cc: Matthew Auld <[email protected]> Reviewed-by: Joonas Lahtinen <[email protected]> Regards, Joonas _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
