[Intel-gfx] i915_init takes a full second of kernel init time

Chris Wilson chris at chris-wilson.co.uk
Tue Dec 13 23:21:27 CET 2011


On Tue, 13 Dec 2011 14:01:29 -0800, Jesse Barnes <jbarnes at virtuousgeek.org> wrote:
> We had some async code to take all of this out of the boot time
> critical path at least...  I thought Chris merged them long ago but I
> guess they were dropped.  Chris?

It never made it upstream because it had a tendency to hang machines
during boot, as the async code was broken at the time wrt handling
multiple async domains and it interacted badly with PIO hard disk
controllers.

After a little bit of digging I found:
http://cgit.freedesktop.org/~ickle/linux-2.6/commit/?h=async&id=470d6985b508466308fc4c6aec945cdbf6de39b8
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre



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