[Intel-gfx] [PATCH] drm/i915: protect force_wake_(get|put) with the gt_lock

[Daniel Vetter]

On Mon, Nov 07, 2011 at 02:52:06PM +0100, Nicolas Kalkhof wrote:
> Hi Daniel,
> 
> thanks for the git branch. Strange thing is with the patched kernel the
> cpu load goes up after working with my desktop with no obvious reason.
> top shows a high user and system load but no process using up all the
> cpu cores. The cpufreq-daemon clocks the cpu cores down to the minimal
> frequency (800mhz) when idle while top still shows full cpu load but no
> process using up the cpu. The cpu load drops to normal after I kill X
> and immediately goes up again if I restart X.
> 
> I'm kinda lost here :( Any Ideas?

Step one is to check whether -linus master has the same issues. My branch
is based upon

commit 37be944a0270402f9cda291a930b0286f6dc92f5
Merge: ca836a2 1717c0e
Author: Linus Torvalds <torvalds at linux-foundation.org>
Date:   Fri Oct 28 05:54:23 2011 -0700

    Merge branch 'drm-core-next' of
    git://people.freedesktop.org/~airlied/linux'
 
If that doesn't show the same issue, can you please run a bisect (only 13
commits) to find out which patch introduced this?

Thanks, Daniel
-- 
Daniel Vetter
Mail: daniel at ffwll.ch
Mobile: +41 (0)79 365 57 48