From: Jesper Skov <jskov@cygnus.co.uk>
To: Gabriel Paubert <paubert@iram.es>
Cc: Cort Dougan <cort@persephone.cs.nmt.edu>,
Christian Zankel <zankel@tarantel.rz.fh-muenchen.de>,
linuxppc-dev@lists.linuxppc.org
Subject: Re: Restructuring Efforts
Date: 18 Feb 1999 08:44:36 +0000 [thread overview]
Message-ID: <oovhh0w16z.fsf@lassi.cygnus.co.uk> (raw)
In-Reply-To: Gabriel Paubert's message of "Wed, 17 Feb 1999 13:19:31 +0100 (MET)"
>>>>> "Gabriel" == Gabriel Paubert <paubert@iram.es> writes:
Gabriel> I had the impression that the APUS I/O accesses had to use
Gabriel> non byte swapped instruction, so that merging the APUS with
Gabriel> the other would be hard. Is there something I missed ?
True, APUS doesn't require byte swapping. But I don't see how this
makes it hard to integrate APUS.
Gabriel> I don't want the kernel to execute conditional code or to
Gabriel> call a subroutine for every I/O access, this is bloat and/or
Gabriel> inefficiency for the sake of it.
This is a valid concern. I don't know if it's possible to do anything
about this.
It may be the case that none of the Amiga drivers use the same IO
macros as other drivers use. As I remember it, there are two set of
macros. But it's a long time since I looked at that, I could be wrong.
Jesper
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next prev parent reply other threads:[~1999-02-18 8:44 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-02-16 16:33 Restructuring Efforts Christian Zankel
1999-02-16 20:11 ` Cort Dougan
1999-02-17 2:35 ` Troy Benjegerdes
1999-02-17 6:45 ` Cort Dougan
1999-02-17 10:53 ` Gabriel Paubert
1999-02-17 16:40 ` Troy Benjegerdes
1999-02-17 16:32 ` Benjamin Herrenschmidt
1999-02-17 12:50 ` [ppc-dev] " Bill Davidsen
1999-02-17 17:27 ` Benjamin Herrenschmidt
1999-02-17 23:44 ` David A. Gatwood
1999-02-18 11:25 ` Benjamin Herrenschmidt
1999-02-17 12:19 ` Gabriel Paubert
1999-02-18 8:44 ` Jesper Skov [this message]
1999-02-18 14:00 ` Gabriel Paubert
1999-02-18 14:26 ` Jesper Skov
1999-02-18 17:03 ` Cort Dougan
1999-02-20 4:39 ` Troy Benjegerdes
1999-02-22 20:03 ` Gabriel Paubert
1999-02-17 12:26 ` [ppc-dev] " Bill Davidsen
1999-02-17 12:12 ` Gabriel Paubert
[not found] <v04003a03b2f0f1315fa4@[205.161.35.44]>
1999-02-18 2:47 ` Gabriel Paubert
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