From: "David S. Miller" <davem@redhat.com>
To: Andi Kleen <ak@suse.de>
Cc: jdeas@jadsystems.com, linux-kernel@vger.kernel.org
Subject: Re: Prefered method to map PCI memory into userspace.
Date: Fri, 26 Sep 2003 21:01:27 -0700 [thread overview]
Message-ID: <20030926210127.3d33367d.davem@redhat.com> (raw)
In-Reply-To: <p73ad8r5hs1.fsf@oldwotan.suse.de>
On 27 Sep 2003 00:03:42 +0200
Andi Kleen <ak@suse.de> wrote:
> mmap on /dev/mem
>
> PIO cannot be done on memory, for that you have to use iopl()
> or ioperm() to get access to the port and then issue the PIO
> instructions yourself
Platform dependant, mmap on /dev/mem doesn't work on many systems.
next prev parent reply other threads:[~2003-09-27 4:01 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1064609623.16160.11.camel@ArchiveLinux.suse.lists.linux.kernel>
2003-09-26 22:03 ` Prefered method to map PCI memory into userspace Andi Kleen
2003-09-27 4:01 ` David S. Miller [this message]
[not found] ` <20030926211740.GA27352@tsunami.ccur.com.suse.lists.linux.kernel>
[not found] ` <1064623209.631.26.camel@gaston.suse.lists.linux.kernel>
[not found] ` <20030926210034.3a1b4de7.davem@redhat.com.suse.lists.linux.kernel>
2003-09-27 5:09 ` Andi Kleen
2003-09-27 23:39 ` David S. Miller
[not found] <A8WS.6Uf.9@gated-at.bofh.it>
[not found] ` <A8WR.6Uf.7@gated-at.bofh.it>
[not found] ` <Aezg.6hA.9@gated-at.bofh.it>
2003-09-27 4:42 ` Andi Kleen
2003-09-26 13:59 ` Anton Blanchard
2003-09-27 23:38 ` David S. Miller
2003-09-26 20:53 Jim Deas
2003-09-26 21:17 ` Joe Korty
2003-09-27 0:40 ` Benjamin Herrenschmidt
2003-09-27 4:00 ` David S. Miller
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