fbdev: Garbage collect fbdev scrolling acceleration

[Sven Schnelle]

Helge Deller <deller at gmx.de> writes:

> I may have missed some discussions, but I'm objecting against this patch:
>
> 	b3ec8cdf457e5 ("fbdev: Garbage collect fbdev scrolling acceleration, part 1 (from TODO list)")
>
> Can we please (partly) revert it and restore the scrolling behaviour,
> where fbcon uses fb_copyarea() to copy the screen contents instead of
> redrawing the whole screen?
>
> I'm fine with dropping the ypan-functionality.
>
> Maybe on fast new x86 boxes the performance difference isn't huge,
> but for all old systems, or when emulated in qemu, this makes
> a big difference.
>
> Helge

I second that. For most people, the framebuffer isn't important as
they're mostly interested in getting to X11/wayland as fast as possible.
But for systems like servers without X11 it's nice to have a fast
console.