Re: scrollmode, accel_flags, fbcon.c ...

[Benjamin Herrenschmidt <benh@kernel.crashing.org>]

> W.r.t. redraw vs. copy for scrolling, perhaps some heuristics like PCI/AGP are
> known to be slow for reading? Fbcon can find out whether a fbdev is on a
> PCI/AGP bus by checking the device (once new driver model/sysfsication is
> complete), right?

But an fbdev that implements an accelerated copyarea ?

I don't want such heuristics in fbcon, they are just asking for trouble,
I think we should redraw on non-accelerated and copy on accelerated,
but then, it should be under more direct driver control. Also, fbcon
keeps "losing" the accel_flags for me.

One thing I don't like in the new fbcon is the way it deals with the
var structure anyway. I think it should have one var per VC.

Ben.




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