nForce3 (Compaq R3000) timer fix

[Coleman Kane]

I would just like to state that you guys have all been quite helpful.
I have gotten FreeBSD/amd64 to work on both the Compaq Presario R3000
as well as my Gateway 7422GX. The Gateway and eMachines systems are
based upon the VIA K8HTB and are much friendlier than their Compaq/HP
counterparts. I am assembling a page of my experiences with both
machines at http://www.cokane.org/amd64.html.

I currently have:
  Gateway 7422GX - Working with ACPI, acpi_ppc, and nearly all
hardware minus the BCM card
  Compaq R3000 - Working with ACPI, acpi_ppc, keyboard, cardbus/pccard,
    still some hardware watchdog timeouts

The Compaq is coming along though. I'll post more info as it gets
working better. In two days of hacking at it, it is working better now
than any of the linux installs were able to work for the past year.

--
coleman

On Wed, 26 Jan 2005 11:37:31 -0800, Peter Wemm <peter at wemm.org> wrote:
> On Wednesday 26 January 2005 08:49 am, Jung-uk Kim wrote:
> > This is (hopefully) the last patch of the series, which fixes
> > infamous '8254 timer not connected to IO-APIC' problem for nForce2+.
> > Linux people had a hack here:
> >
> > http://lkml.org/lkml/2003/12/21/7
> >
> > (Note: 2.6.10 has more refined version.)
> >
> > The attached patch requires the previous 'skip_timer_override' hack
> > posted here:
> >
> > http://docs.freebsd.org/cgi/mid.cgi?200501192214.27401.jkim
> >
> > After the patch, you need to set 'hw.apic.skip_set_extint=1' from
> > loader or loader.conf.  Be careful with spelling; this is 'apic', not
> > 'acpi' this time. ;-)
> >
> > With verbose boot logging, we should see:
> >
> >       ioapic0: intpin 0 -> ISA IRQ 0 (edge, high)
> >
> > instead of:
> >
> >       ioapic0: Routing external 8259A's -> intpin 0
> >       ioapic0: intpin 0 -> ExtINT (edge, high)
> >
> > I was able to run this laptop overnight without 'device atpic'. ;-)
> > I think somebody (jhb and peter, I guess) should double check if this
> > is okay.  I tried many combinations including 'options SMP' and all
> > seemed to be fine so far.
> >
> > Finally I can run this laptop at full speed (2 GHz) under heavy load
> > with 'acpi_ppc' driver!
> >
> > http://www.spa.is.uec.ac.jp/~nfukuda/software/
> >
> > Enjoy,
> >
> > Jung-uk Kim
> 
> 
> Whoo!  It sounds like you're onto something there!
> 
> I have one question though.. Can you think of a way of automating this?
> Perhaps we could blacklist the extint mode by detecting whether the
> nforce2+ chipset is present?
> --
> Peter Wemm - peter at wemm.org; peter at FreeBSD.org; peter at yahoo-inc.com
> "All of this is for nothing if we don't go to the stars" - JMS/B5
> _______________________________________________
> freebsd-amd64 at freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-amd64
> To unsubscribe, send any mail to "freebsd-amd64-unsubscribe at freebsd.org"
>