linux-mips
[Top] [All Lists]

Re: Modpost warning on Alchemy

To: "Maciej W. Rozycki" <macro@linux-mips.org>
Subject: Re: Modpost warning on Alchemy
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Date: Wed, 1 Aug 2007 18:10:31 +0100
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>, Ralf Baechle <ralf@linux-mips.org>, linux-mips@linux-mips.org
In-reply-to: <Pine.LNX.4.64N.0708011737170.20314@blysk.ds.pg.gda.pl>
Organization: Red Hat UK Cyf., Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, Y Deyrnas Gyfunol. Cofrestrwyd yng Nghymru a Lloegr o'r rhif cofrestru 3798903
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <20070801115231.GA20323@linux-mips.org> <46B07B36.1000501@ru.mvista.com> <Pine.LNX.4.64N.0708011337390.20314@blysk.ds.pg.gda.pl> <46B086EB.2030101@ru.mvista.com> <46B0880B.2000009@ru.mvista.com> <Pine.LNX.4.64N.0708011629010.20314@blysk.ds.pg.gda.pl> <46B0AA74.7040100@ru.mvista.com> <Pine.LNX.4.64N.0708011708250.20314@blysk.ds.pg.gda.pl> <46B0B6B4.5090103@ru.mvista.com> <Pine.LNX.4.64N.0708011737170.20314@blysk.ds.pg.gda.pl>
Sender: linux-mips-bounce@linux-mips.org
> >    That depends on the drivers used (some IDE drivers access it really 
> > often).
> 
>  It is their problem I would say -- there is a design problem either in 
> these drivers or the hardware handled.  The PCI spec is very explicit that 
> the config space is meant to be seldom accessed only.  Device 
> initialization/shutdown and bus error recovery are the normal places.

An awful lot of vendors get it horribly wrong and many end up needing
configuration space access even in IRQ handlers. Dishonourable mentions
to ATI for example ;)

<Prev in Thread] Current Thread [Next in Thread>