From: Richard Henderson <rth@twiddle.net>
To: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Linux kernel <linux-kernel@vger.rutgers.edu>,
Linux/PPC Development <linuxppc-dev@lists.linuxppc.org>,
Linux/MIPS Development <linux@cthulhu.engr.sgi.com>
Subject: Re: Proposal: non-PC ISA bus support
Date: Thu, 22 Jun 2000 00:19:16 -0700 [thread overview]
Message-ID: <20000622001916.A29550@twiddle.net> (raw)
In-Reply-To: <Pine.GSO.4.10.10006220828350.27193-100000@dandelion.sonytel.be>
On Thu, Jun 22, 2000 at 08:45:47AM +0200, Geert Uytterhoeven wrote:
> But with ioremap() you cannot specify where it has to be mapped, right? So
> you're still stuck with an offset.
Huh? Who cares where it's mapped. "Some unused space."
A pointer is a pointer.
In my case there is a direct correlation between the "base address"
and the "ioremaped address" -- the addition of a constant. That's
the win for using 64-bit pointers. ;-)
> > the ISA bus is contained within exactly one PCI hose.
>
> Which is not the case on some boxes :-(
The only machines I knew about that had this were the DEC NUMA
machines. What does your bus configuration look like?
r~
next prev parent reply other threads:[~2000-06-22 7:22 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-06-20 11:21 Proposal: non-PC ISA bus support Geert Uytterhoeven
2000-06-20 12:23 ` Benjamin Herrenschmidt
2000-06-20 12:41 ` Geert Uytterhoeven
2000-06-20 13:02 ` Benjamin Herrenschmidt
2000-06-20 13:09 ` Geert Uytterhoeven
2000-06-20 13:25 ` De Schrijver Peter
2000-06-20 13:30 ` Benjamin Herrenschmidt
2000-06-21 21:47 ` Michel Lanners
2000-06-20 17:11 ` Frank Rowand
2000-06-20 17:29 ` Geert Uytterhoeven
2000-06-20 20:10 ` Russell King
2000-06-20 20:10 ` Russell King
2000-06-21 23:57 ` Richard Henderson
2000-06-22 6:45 ` Geert Uytterhoeven
2000-06-22 7:19 ` Richard Henderson [this message]
2000-06-22 7:41 ` Geert Uytterhoeven
2000-06-22 8:59 ` Richard Henderson
2000-06-22 9:15 ` Geert Uytterhoeven
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