From: Samuel Rydh <samuel@ibrium.se>
To: jenschrr@uni-bielefeld.de
Cc: linuxppc-dev@lists.linuxppc.org
Subject: Re: Mac-on-linux is now working...
Date: Tue, 11 May 1999 22:53:54 +0200 [thread overview]
Message-ID: <19990511225354.65466@ibrium.se> (raw)
In-Reply-To: <3737E133.164A@post.uni-bielefeld.de>; from Jens Ch. Restemeier on Tue, May 11, 1999 at 09:50:12AM +0200
On Tue, May 11, 1999 at 09:50:12AM +0200, Jens Ch. Restemeier wrote:
> Hi !
>
> I'm currently downloading the source. Do you have any suggestions for
> starting 603 support? What are the differences that need to be fixed?
>
> Jens
I think it is only the MMU code which needs to be fixed.
All processors except the 603 uses a TLB hash table for
page table entries. Mac-on-linux accesses this table
directly in a few places.
If the line
#define NO_RELOAD_HTAB 1
is changed to
#define NO_RELOAD_HTAB 0
in 'arch/ppc/kernel/head.S' and 'arch/ppc/mm/init.c',
then the kernel emulates a TLB hash table. Possibly
this will do the trick. (I would also suggest careful
examination of the register contents for the faked
"DSI/ISI" exception).
Some more modifications are necessary if one want
the 603 to behave as a 603 (and not as a 604).
I can't see why one should want that though.
/Samuel
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next prev parent reply other threads:[~1999-05-11 20:53 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-05-10 19:33 Mac-on-linux is now working Samuel Rydh
1999-05-11 7:50 ` Jens Ch. Restemeier
1999-05-11 20:53 ` Samuel Rydh [this message]
1999-05-12 21:47 ` Kolbjørn Barmen
1999-06-03 17:28 ` Brad Midgley
1999-06-03 18:05 ` Benjamin Herrenschmidt
1999-06-05 17:27 ` control-c [Re: Mac-on-linux is now working...] Brad Midgley
1999-06-05 18:00 ` Mac-on-linux is now working Brad Midgley
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