On Thu, 13 Oct 2005, Richard Zidlicky wrote:
> On Thu, Oct 13, 2005 at 09:37:00AM +0200, Emiliano wrote:
> > Alle 21:34, marted�1 ottobre 2005, Kars de Jong ha scritto:
> > > You have a 68060, and I believe the module loader in X (XFree86 or Xorg)
> > > still doesn't do cache flushing, which will cause the '060 with its 8k
> > > instruction cache to fail. With other CPUs (especially a '030) things
> > > usually work fine even without the cache flushes because its cache gets
> > > flushed all the time anyway, and the cache is tiny anyway.
> >
> > Thanks for your explanation. Is there some way to turn the cache (temporarily)
> > off?
>
> there are better workarounds;)
> - compile monolithic X server without modules, I have done
> that and it works perfectly on 68060. For a production machine
> a monolithic X server is in many cases preferable to module
> loading anyway.
>
> - fix module loading. Adding some cacheflush calls is really
> easy once you know where to put them..
Or use dlopen(). I hate it if X wants to reimplement functionality instead of
using what's available (speaking about dynamic linking of modules, messing with
PCI, ...).
> > > On my HP300 (with a '040) it manages to start X about once every ten
> > > times.
> >
> > > Plus it's a pain to compile X.
> >
> > May I help with this issue? I used to be an amiga coder, I also know basics
> > about linux programming on x86, so maybe I can give it a look...
> >
> > The best thing would be a VM inside a fast linux box, or even a cross-compiler
> > on the x86.
>
> one interesting way to speedup compiling is distcc.
> http://distcc.samba.org/
>
> The setup is somewhat simpler than what you would have to do
> for a full crosscompiler, it is also slower as preprocessing
> and configure/make runs on the 680x0.
And ccache also helps. Never compile the same file twice ;-)
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds