Kernel Display and Video API Consolidation mini-summit at ELC 2012 - Notes

[James Simmons]

> > Ensuring that nothing prevents the switch to fbcon and displaying the
> > panic message is the reason why we haven't felt inclined to accelerate
> > fbcon - it just gets messy for no real gain.
> 
> and when doing 2d accel on a 3d core..  it basically amounts to
> putting a shader compiler in the kernel.   Wheeee!

Yikes. I'm not suggesting that. In fact I doubt accelerating the imageblit
would be worthy it due to the small size of the images being pushed. The 
real cost is the copyarea which is used for scrolling when no panning is 
available. 

> > For example: https://bugs.freedesktop.org/attachment.cgi?id=48933
> > which doesn't handle flushing of pending updates via the GPU when
> > writing with the CPU during interrupts (i.e. a panic).
> > -Chris
> >
> > --
> > Chris Wilson, Intel Open Source Technology Centre
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