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Re: Proposal: non-PC ISA bus support

To: Benjamin Herrenschmidt <bh40@calva.net>
Subject: Re: Proposal: non-PC ISA bus support
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Tue, 20 Jun 2000 15:09:23 +0200 (MET DST)
Cc: Linux/PPC Development <linuxppc-dev@lists.linuxppc.org>, Linux/MIPS Development <linux@cthulhu.engr.sgi.com>, Linux kernel <linux-kernel@vger.rutgers.edu>
In-reply-to: <20000620130238.15357@mailhost.mipsys.com>
Sender: owner-linux-mips@oss.sgi.com
On Tue, 20 Jun 2000, Benjamin Herrenschmidt wrote:
> On Tue, Jun 20, 2000, Geert Uytterhoeven <geert@linux-m68k.org> wrote:
> 
> >Concatenating the I/O spaces seems like the best solution to me as well.
> 
> Would work if the ranges you are passing via /proc/bus/isa/xxxx are
> kernel virtual addresses and not physical addresses (I didn't check if
> this is the case).

Oops, /proc/bus/isa/map talks about physical addresses.

Workaround: patch the mmap() entry of /dev/mem.

Gr{oetje,eeting}s,

                                                Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                                            -- Linus Torvalds


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