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From: Paul Mackerras <paulus@cs.anu.edu.au>
To: frank@mitre.org
Cc: linuxppc-dev@lists.linuxppc.org
Subject: Re: xmon, BAT structure, etc.
Date: Tue, 2 Feb 1999 16:29:14 +1100	[thread overview]
Message-ID: <199902020529.QAA03214@tango.anu.edu.au> (raw)
In-Reply-To: <36ACDDB2.6DA8ACA7@mitre.org> (message from Frank McPherson on Mon, 25 Jan 1999 16:10:12 -0500)


Frank McPherson <frank@mitre.org> wrote:

> xmon doesn't seem to exist in the linuxppc sources any more and I'm
> having trouble getting the one from the linuxppc.org 2.1.24 sources to
> compile with 2.2.0-pre5, which is the latest version I was able to pull
> from vger's anonymous cvs before it started always refusing connections.
>   Where can I get it, or something equivalent?  What's the best way to

I suggest you get a copy of my tree by anonymous rsync from
samba.anu.edu.au::linux-pmac-devel.  Look at http://rsync.samba.org/
if you need more information about rsync.

> I'm working on getting linux up and running on a non-prep, non-pci VME
> board with a 603e and having some trouble with it.  I've got the kernel
> uncompressing down to where it should be, but it traps when it gets a
> bit of the way in to init/main.c.  When I write the contents of the BAT
> structure to dual port RAM on the VME bus, I get all zeros, leading me
> to believe I'm not setting thins up correctly down in the
> platform-specific sections.  

It could be just that the RAM is set for write-back caching and the
values are still in the cache.  (Write-back caching is the default
when the data MMU is disabled.)  You can use the dcbst instruction to
make sure the stuff you write gets flushed to memory.

Paul.

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      reply	other threads:[~1999-02-02  5:29 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1999-01-25 21:10 xmon, BAT structure, etc Frank McPherson
1999-02-02  5:29 ` Paul Mackerras [this message]

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