Quoting Chris Wilson (2018-06-10 22:43:19) > As we were only supporting aliasing_ppgtt on gen7 for some time, we > saved a few checks by preallocating the page directories on creation. > However, since we need 2MiB of page directories for each ppgtt, to > support arbitrary numbers of user contexts, we need to be more prudent > in our allocations, and defer the page allocation until it is used. We > don't recover unused pages yet as we found that doing so on the fly > (i.e. altering TLB entries) would confuse the GPU. > > Signed-off-by: Chris Wilson <[email protected]> > Cc: Joonas Lahtinen <[email protected]> > Cc: Mika Kuoppala <[email protected]> > Cc: Matthew Auld <[email protected]> > Reviewed-by: 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
