On Thu, 2008-10-30 at 13:04 -0500, Hollis Blanchard wrote: > > I don't think it's necessary at all to disable ME/CE/DE inside > _tlbie() on 440, because the interrupt handlers for those types save > and restore MMUCR (they're all the same code path; see > mcheck_transfer_to_handler in entry_32.S).
This was written before the saving of MMUCR was added I think. > However, I think EE does need to be disabled, since the normal EE > handler doesn't deal with MMUCR. So instead of all these MSR > manipulations, I think a simple wrteei 0/1 pair should do the trick? > Or maybe mfmsr/wrteei/wrtee, in case _tlbie() happens to be called > with interrupts disabled already. Yes. Ben. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
