[Intel-gfx] [PATCH 1/4] drm/i915: don't block resume on fb console resume

Jesse Barnes jbarnes at virtuousgeek.org
Mon Nov 5 00:12:37 CET 2012


On Sun, 04 Nov 2012 22:16:39 +0100
Paul Menzel <paulepanter at users.sourceforge.net> wrote:

> Dear Jesse,
> 
> 
> unfortunately due to mail problems with SourceForge I did not get the
> latest series.

No I haven't pushed an updated version anywhere, but I think Daniel has
them queued now?

> 
> Do you have a public repository with these patches in it?
> 
> 
> Am Mittwoch, den 31.10.2012, 15:41 -0700 schrieb Jesse Barnes:
> > 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 #intel-gfx on irc.freenode.net, Daniel told me that this is mostly
> true for Sandybridge. Could you clarify that in the commit message
> please.

The fb resume and GTT rewrite patches will benefit every Intel gfx
platform.  The work queue for ring freq updates will benefit SNB+.

Jesse



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