On Tue, May 01, 2012 at 07:45:02PM +0200, Daniel Vetter wrote: > On Tue, May 01, 2012 at 07:58:27AM -0700, Jesse Barnes wrote: > > On Mon, 30 Apr 2012 19:35:02 +0100 > > Chris Wilson <chris at chris-wilson.co.uk> wrote: > > > > > On SandyBridge IPS was entirely implemented in hardware and not reliant > > > on the driver monitoring power consumption and feeding back desired run > > > states, so the hardware is able to adapt quicker and more flexibly. Which > > > is a huge relief for us as we no longer have to carry empirically > > > derived magic algorithms. > > > > > > Yet despite the advance in technology, the driver was still doing its > > > IPS polling on all machines. Restrict it to the only supported hardware, > > > Clarkdale/Arrandale. > > > > > > Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk> > > > Cc: Jesse Barnes <jbarnes at virtuousgeek.org> > > Reviewed-by: Jesse Barnes <jbarnes at virtuousgeek.org> > Queued for -next, thanks for the patch. Patch is now also in -fixes because it gets rid of a WARN backtrace. Tested-by and bugzilla link added. -Daniel -- Daniel Vetter Mail: daniel at ffwll.ch Mobile: +41 (0)79 365 57 48