On Thu, 2009-09-24 at 18:35 -0700, Rex Feany wrote: > > Then I can boot and get to a shell, but userspace is slow. 8 seconds > to mount > /proc (vs. less then a second using my old kernel)! Maybe this is an > unrelated issue? I'm pretty clueless about the details, I'm sorry. > PG_arch_1 is used to prevent a cache flush unless it is actually > needed? > Then why would changing the location of the tlbil_va() make a > difference?
I think there's more finishyness to 8xx than we thought. IE. That tlbil_va might have more reasons to be there than what the comment seems to advertize. Can you try to move it even higher up ? IE. Unconditionally at the beginning of set_pte_filter ? Also, if that doesn't help, can you try putting one in set_access_flags_filter() just below ? (Beware that there's two different versions of both functions, only the first one is compiled/used on 8xx). It's going to be hard for me to get that "right" since I don't really know what's going on with the core here, but I suppose if we get it moving along with extra tlb invalidations, that should be "good enough" until somebody who really knows what's going on comes up with possibly a better fix. Cheers, Ben. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
