Benjamin Herrenschmidt <b...@kernel.crashing.org> wrote on 2012/06/02 23:21:16: > > On Sat, 2012-06-02 at 20:29 +0200, Joakim Tjernlund wrote: > > > > hmm, where does this go w.r.t the patch? Got the feeling that the > > best thing is to just turn MSR:DE on and be done with it? > > Not unconditionally, we need to have a close look, that might be ok > specifically for BookE 32-bit, it's certainly not ok for BookE 64-bit at > this point. > > For now, I'm ok with a debug CONFIG_* option.
OK, I will wrap this with the existing CONFIG_BDI_SWITCH and only for booke > > Also do we know if MSR:DE has any performance impact on any CPU ? I know > having DACs enabled has a major impact on some for example. No idea, this is something for Freescale to dwell on. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
