From: Jesse Barnes <jbarnes@virtuousgeek.org>
To: "Jon Smirl" <jonsmirl@gmail.com>
Subject: Re: [RFC] enhancing the kernel's graphics subsystem
Date: Mon, 21 May 2007 09:34:58 -0700
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Cc: "Jon Smirl" <jonsmirl@gmail.net>, "Jesse Barnes" <jesse.barnes@intel.com>,
       linux-kernel@vger.kernel.org, "Antonino A. Daplas" <adaplas@gmail.com>
References: <200705171423.46748.jesse.barnes@intel.com> <9e4733910705210901v5996cacas640f211404c519c6@mail.gmail.com> <200705210914.22663.jbarnes@virtuousgeek.org>
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On Monday, May 21, 2007, Jesse Barnes wrote:
> > There is more to fbdev than mode setting. It is also how non-x86
> > platforms achieve their boot display. How will boot display be handled
> > with the your design? What about console display on non-x86 platforms?
> > Loading both fbdev and the new code puts us right back into the
> > multiple driver fight we have today.
>
> Maybe you should take a look at the patches. :)  The code I posted
> actually creates an fb device as a slave of the DRM device, and uses
> that for the boot console.  Once you've booted, you can use the new
> interfaces to do whatever you want with the graphics device... though it
> doesn't create /dev/fb* devices per-CRTC like you seem to want, it's
> really easy to do the equivalent with a small userspace program (though
> I haven't actually tested sharing of buffer objects, it should work).

Actually, scratch that last bit.  I forgot about a recent change alanh 
committed that did just that:  per-CRTC FB devices.  So please take a 
close look (modesetting-101 of mesa/drm git at freedesktop.org) and let me 
know if you see any gaping holes.

Thanks,
Jesse
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