From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Jesse Barnes <jbarnes@engr.sgi.com>
Cc: Jon Smirl <jonsmirl@yahoo.com>, lkml <linux-kernel@vger.kernel.org>
Subject: Re: OLS and console rearchitecture
Date: Tue, 03 Aug 2004 10:01:53 +1000 [thread overview]
Message-ID: <1091491312.7387.85.camel@gaston> (raw)
In-Reply-To: <200408021133.09935.jbarnes@engr.sgi.com>
>
> It should probably be a real device driver rather than a sysfs pseudofile.
> Not sure if it should be dynamic or not though. It would be nice if apps
> used the driver to do legacy VGA I/O port accesses as well, since that would
> make things easier on platforms that unconditionally master abort when a PIO
> times out, and would probably make it easier to deal with multiple domains.
I strongly agree. Also, access to VGA memory (in case that is necessary)
should be provided via MMAP on this driver too.
There are other reasons than master aborts to go that way, like platforms
that have multiple PCI domains with separate IO spaces that can accomodate
VGA cards in several of them.
Ben.
next prev parent reply other threads:[~2004-08-03 0:06 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-02 14:24 OLS and console rearchitecture Jon Smirl
2004-08-02 14:54 ` Alexander E. Patrakov
2004-08-02 16:07 ` Miquel van Smoorenburg
2004-08-02 16:21 ` Andreas Schwab
2004-08-02 17:40 ` Alan Cox
2004-08-03 8:44 ` Andreas Schwab
2004-08-02 16:16 ` Jon Smirl
2004-08-05 11:08 ` Martin Waitz
2004-08-02 18:33 ` Jesse Barnes
2004-08-03 0:01 ` Benjamin Herrenschmidt [this message]
2004-08-05 8:56 ` Helge Hafting
2004-08-05 20:32 ` Alan Cox
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