From: Michael S.Zick <mszick@pflash.com>
To: Alan Modra <amodra@bigpond.net.au>
Cc: Matthew Wilcox <willy@debian.org>, parisc-linux@parisc-linux.org
Subject: Re: [parisc-linux] EISA support
Date: Wed, 10 Oct 2001 09:11:20 -0500 [thread overview]
Message-ID: <01101009112000.00829@Wolf-01> (raw)
In-Reply-To: <20011010203110.S1100@bubble.sa.bigpond.net.au>
On Wednesday 10 October 2001 06:01 am, Alan Modra wrote:
> >
> > Would it be reasonable to mask port numbers to 10 bits for ISA in the
> > inb/outb routines?
>
> No. Some old ISA boards do decode the top bits, and actually use them.
Alan,
Correct -
16-bit ISA cards NEARLY ALWAYS decode the top bits; but 8-bit
cards don't (can't, the wires aren't on that part of the socket).
My comment was based on the i386 branch, which does have such a
config option for the (very) rare installation that needs to support such
a board.
I was only wondering if this would be a REASONABLE place in the
code to put it.
Mike
next prev parent reply other threads:[~2001-10-10 14:13 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-10 6:24 [parisc-linux] EISA support Matthew Wilcox
2001-10-10 8:32 ` Michael S.Zick
2001-10-10 11:01 ` Alan Modra
2001-10-10 14:11 ` Michael S.Zick [this message]
2001-10-10 14:48 ` Matthew Wilcox
2001-10-10 15:38 ` Matthew Wilcox
2001-10-10 16:57 ` Michael S.Zick
2001-10-10 12:45 ` Richard Hirst
2001-10-10 14:28 ` Matthew Wilcox
2001-10-10 17:36 ` Grant Grundler
2001-10-11 1:40 ` Matthew Wilcox
2001-10-11 3:56 ` Grant Grundler
2001-10-11 11:23 ` Richard Hirst
2001-10-11 20:22 ` Matthew Wilcox
2001-10-11 8:15 ` Richard Hirst
2001-10-12 6:44 ` Matthew Wilcox
2001-10-12 8:47 ` Richard Hirst
2001-10-12 9:01 ` Richard Hirst
2001-10-16 19:17 ` Tom
2001-10-16 19:46 ` Jochen Friedrich
2001-10-16 20:00 ` Matthew Wilcox
2001-10-16 22:26 ` Jochen Friedrich
2001-10-16 22:32 ` Matthew Wilcox
2001-10-18 14:31 ` Tom
2001-10-18 15:08 ` Matthew Wilcox
-- strict thread matches above, loose matches on Subject: below --
2001-10-10 11:37 Pedot, Wolfgang
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