From: Doug Ledford <dledford@redhat.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Benedict Bridgwater <bennyb@ntplx.net>,
Linux-Kernel <linux-kernel@vger.kernel.org>
Subject: Re: 2.4.4-ac5 aic7xxx causes hang on my machine
Date: Wed, 09 May 2001 13:08:46 -0400 [thread overview]
Message-ID: <3AF9799E.FA8C0D61@redhat.com> (raw)
In-Reply-To: <E14xXJc-0002mc-00@the-village.bc.nu>
Alan Cox wrote:
> > setup all possible boot devices, only devices non-essential to the boot
> > process (sound cards, modems, crap like that) get left unconfigured. Not
>
> It only has to do minimal setup on them. If the BIOS calls are polled then
> assigning an IRQ is quite optional
The only way a motherboard BIOS would know if the PCI BIOS used polling
methods instead of interrupt methods is if it was a built in device. For all
non-built in devices, it can't assume it won't need an interrupt if the card
uses interrupts at all. I find it extremely unlikely that there exists a
motherboard BIOS that *doesn't* at least assign the I/O space area and the IRQ
for all bootable devices on the system, regardless of PnPOS settings. Name
one concrete example of a motherboard BIOS that doesn't and I'll recant.
--
Doug Ledford <dledford@redhat.com> http://people.redhat.com/dledford
Please check my web site for aic7xxx updates/answers before
e-mailing me about problems
next prev parent reply other threads:[~2001-05-09 17:07 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-05-09 12:59 2.4.4-ac5 aic7xxx causes hang on my machine Benedict Bridgwater
2001-05-09 14:06 ` Alan Cox
2001-05-09 15:25 ` Doug Ledford
2001-05-09 15:49 ` Alan Cox
2001-05-09 15:52 ` Doug Ledford
2001-05-09 16:10 ` Alan Cox
2001-05-09 16:21 ` Doug Ledford
2001-05-09 16:59 ` Alan Cox
2001-05-09 17:08 ` Doug Ledford [this message]
2001-05-09 17:16 ` Alan Cox
[not found] ` <3AF96271.81C27F57@mandrakesoft.com>
[not found] ` <3AF9661B.1707F5E3@redhat.com>
[not found] ` <3AF96811.3C6C196D@mandrakesoft.com>
[not found] ` <3AF96B39.7C7888F4@redhat.com>
[not found] ` <3AF96D99.AB18CB4F@mandrakesoft.com>
[not found] ` <3AF97DE0.3C6455A6@ntplx.net>
2001-05-10 14:39 ` Ben Bridgwater
2001-05-09 16:21 ` Andy Carlson
-- strict thread matches above, loose matches on Subject: below --
2001-05-07 12:43 [Patch] Do not account shmem pages to the page cache Christoph Rohland
2001-05-07 13:04 ` 2.4.4-ac5 aic7xxx causes hang on my machine Andy Carlson
2001-05-07 13:58 ` Oyvind Jagtnes
2001-05-07 14:14 ` Justin T. Gibbs
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