[Intel-gfx] [PATCH 1/3] drm/i915: don't block resume on fb console resume
Chris Wilson
chris at chris-wilson.co.uk
Mon Oct 15 11:26:38 CEST 2012
On Sun, 14 Oct 2012 19:10:36 -0700, Jesse Barnes <jbarnes at virtuousgeek.org> wrote:
> The console lock can be contended, so rather than prevent other drivers
> after us from being held up, queue the console suspend into the global
> work queue that can happen anytime. I've measured this to take around
> 200ms on my T420. Combined with the ring freq/turbo change, we should
> save almost 1/2 a second on resume.
In gneral it looks like the first couple of patches are reflections of
the async-domains work, and would probably be better if we looked more
closely to integrating into that async init/resume infrastructure. The
first patches floating around were to offload attaching inteldrmfb to a
separate thread.
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
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