From: "Antonino A. Daplas" <adaplas@hotpop.com>
Reply-To: adaplas@pol.net
To: linux-fbdev-devel@lists.sourceforge.net, Jon Smirl <jonsmirl@gmail.com>
Subject: Re: [Linux-fbdev-devel] Generic VESA framebuffer driver and Video card BOOT?
Date: Sat, 16 Oct 2004 09:50:32 +0800
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Cc: Kendall Bennett <kendallb@scitechsoft.com>, linux-kernel@vger.kernel.org,
       penguinppc-team@lists.penguinppc.org,
       linux-fbdev-devel@lists.sourceforge.net
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On Saturday 16 October 2004 07:20, Jon Smirl wrote:
> On Sat, 16 Oct 2004 05:51:38 +0800, Antonino A. Daplas
>
> <adaplas@hotpop.com> wrote:
> > Yes, that is the downside to a userspace solution. How bad will that be?
> > Note that Jon Smirl is proposing a temporary console driver for early
> > boot messages until the primary console driver activates.
>
> Does anyone know exactly how big the window is from when a compiled in
> console activates until one that relies on initramfs loads? I don't
> think it is very big given that a lot of the early printk's are queued
> before they are displayed.

There's a log of initialization that goes on between console_init() and
populate_rootfs().  However, console_init() will only initialize built-in
consoles (as pointed to by conswitchp) such as vgacon or dummycon.
However, the framebuffer system initialization does happen after
populate_rootfs().  

So, at least in the framebuffer perspective, the emulator/video boot may be
loaded as part of initramfs.

Tony


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