From: Chris Wilson <chris@chris-wilson.co.uk>
To: Scott James Remnant <keybuk@google.com>
Cc: intel-gfx@lists.freedesktop.org, Daniel Stone <daniels@collabora.com>
Subject: Re: i915_init takes a full second of kernel init time
Date: Thu, 15 Dec 2011 10:38:16 +0000 [thread overview]
Message-ID: <c55c5d$1d932o@AZSMGA002.ch.intel.com> (raw)
In-Reply-To: <CAHZ1yCnYB1-OHQj_O_3NRbWT5aVDguY6QRJ1e7bZHwen5e_Fqg@mail.gmail.com>
On Wed, 14 Dec 2011 16:38:09 -0800, Scott James Remnant <keybuk@google.com> wrote:
> > After a little bit of digging I found:
> > http://cgit.freedesktop.org/~ickle/linux-2.6/commit/?h=async&id=470d6985b508466308fc4c6aec945cdbf6de39b8
> > -Chris
> >
> I've tried this patch, but it doesn't really reduce the startup time
> by much, the mainline of i915_init is still taking >0.7s with the
> patch applied.
Reverting de842eff4101 (drm/i915: Wait for LVDS panel power sequence)
should get another 0.4s back if intel_lvds_enable() is still in the
critical path. After that the focus looks to be upon speeding up
modeset.
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
next prev parent reply other threads:[~2011-12-15 10:38 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-13 19:55 i915_init takes a full second of kernel init time Scott James Remnant
2011-12-13 20:02 ` Jesse Barnes
2011-12-13 21:34 ` Scott James Remnant
2011-12-13 22:01 ` Jesse Barnes
2011-12-13 22:21 ` Chris Wilson
2011-12-15 0:38 ` Scott James Remnant
2011-12-15 10:38 ` Chris Wilson [this message]
2011-12-15 17:48 ` Keith Packard
2011-12-15 21:48 ` Scott James Remnant
2011-12-15 22:22 ` Keith Packard
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