Re: [PATCH] VGA arbitration: draft of kernel side

Jon Smirl
2005-03-09T05:58:24Z

On Wed, 09 Mar 2005 16:37:13 +1100, Benjamin Herrenschmidt
<benh@kernel.crashing.org> wrote:
> On Tue, 2005-03-08 at 23:35 -0500, Jon Smirl wrote:
> > This is from /linux-2.5/Documentation/filesystems/sysfs-pci.txt. It
> > describes how ia64 is achieving legacy IO. The VGA control code
> > probably needs to be coordinated with this.
>
> This is a different thing, and I will implement it on ppc one of these
> days. This is for issuing the IO cycles on the bus. It has nothing
> to do with the actual arbitration work.

Each one of these legacy spaces corresponds to an allowable
simultaneous VGA use. There should be one arbiter per legacy space.

--
Jon Smirl
jonsmirl@gmail.com