\ > Probably. You won't have any page tables yet, much less an entry for > the device tree. > > > >> I think the cause is clear now. But how to fix it? Two questions: > > >> 2. If the DTLB miss exception handler is not the right guy to load a > > >> proper TLB entry, how can I set one entry based on the link_address > > >> and the address of the flat dt blob? > > > > > > Given how early in the boot process it is, it's probably going to need > > > to be handled specially. > > > > What APIs can I use to set up DTLBs? > > I don't think there is one that works on 8xx. You'll could hack up > initial_mmu, or else write some C code to insert an 8xx TLB entry.
Yup, I think he just ends up getting out of the initial mapping which is smallish on 8xx, no ? Might be worth sticking in one more entry during boot... Ben. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
