On Wed, 2009-10-14 at 18:08 -0700, Rex Feany wrote: > Thus spake Benjamin Herrenschmidt (b...@kernel.crashing.org): > > > On Wed, 2009-10-14 at 17:41 -0700, Rex Feany wrote: > > > The biggest problem for me turned out to be the MMU context IDs being > > > clamped to 32 when the 8xx only has 16. With this, things are a bit more > > > stable :) > > > > This is with Joakim patches or without ? > > with just one: adding tlbil_va() to do_page_fault().
Ah cool, at least that keeps my sanity, I didn't get how it could work at all without that bit :-) Scott, Joakim: It will be interesting to figure out exactly what is the condition where that is necessary. It definitely should make the one in set_pte_filter() or ptep_set_access_flags_filter() unnecessary. Joakim, you mentioned increased amount of TLB errors or misses when doing that too often, that sounds a bit weird and worth investigating Finally we could implement preload from update_mmu_cache() but that's a different matter alltogether. Cheers, Ben. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
