From: Ralf Baechle <ralf@linux-mips.org>
To: Stanislaw Skowronek <sskowron@ET.PUT.Poznan.PL>
Cc: linux-mips@linux-mips.org
Subject: Re: Work on IP30
Date: Tue, 13 Apr 2004 01:13:09 +0200 [thread overview]
Message-ID: <20040412231309.GA702@linux-mips.org> (raw)
In-Reply-To: <Pine.GSO.4.10.10404122244110.8735-100000@helios.et.put.poznan.pl>
On Mon, Apr 12, 2004 at 10:51:13PM +0200, Stanislaw Skowronek wrote:
> Interesting note: the ARCS console breaks when I change KSEG0 cache
> coherence in the CP0_CONFIG register (in c-r4k.c). Of course, it breaks
> sooner or later, not exactly afterwards, unless I flush cache exactly
> after changing; it breaks immediately then. I don't give a hoot, because
> IP30 has almost no RAM in KSEG0 and the kernel runs in XKPHYS, always
> cached copy-on-write. But those of you with another machines might be
> interested.
Most firmware breaks at some point due to Linux fiddling with it's
resources. What differs is how and when it breaks. In case of IP27 the
first TLB flush for example is going to kill ARC.
And remember, it's written ARC but pronounced ARGGHHHH ;)
Ralf
next prev parent reply other threads:[~2004-04-12 23:13 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-12 20:51 Work on IP30 Stanislaw Skowronek
2004-04-12 23:13 ` Ralf Baechle [this message]
2004-04-12 23:42 ` [PATCH] gcc 3.4 drops "accum" clobber, replace with "hi" in time.c Bradley D. LaRonde
2004-04-12 23:42 ` Bradley D. LaRonde
2004-04-13 0:53 ` Bradley D. LaRonde
2004-04-13 0:53 ` Bradley D. LaRonde
2004-04-13 1:02 ` Eric Christopher
2004-04-13 1:05 ` [PATCH] gcc 3.4 drops "accum" clobber, replace with "hi" intime.c Bradley D. LaRonde
2004-04-13 1:05 ` Bradley D. LaRonde
2004-04-13 1:07 ` Daniel Jacobowitz
2004-04-13 1:12 ` Bradley D. LaRonde
2004-04-13 1:12 ` Bradley D. LaRonde
2004-04-13 1:23 ` Bradley D. LaRonde
2004-04-13 1:23 ` Bradley D. LaRonde
2004-04-13 12:57 ` Maciej W. Rozycki
2004-04-18 2:39 ` Steven J. Hill
2004-04-19 11:50 ` Maciej W. Rozycki
2004-04-18 13:00 ` Ralf Baechle
2004-04-18 13:00 ` Ralf Baechle
-- strict thread matches above, loose matches on Subject: below --
2004-04-25 17:18 Work on IP30 Stanislaw Skowronek
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