[Intel-gfx] [PATCH 1/2] drm/i915/vlv: correct promotion timer value for RC6 Timeout method.

Daniel Vetter daniel at ffwll.ch
Thu Nov 28 08:33:15 CET 2013


On Thu, Nov 28, 2013 at 03:35:45AM +0000, S, Deepak wrote:
> Hi Jesse,
> 
> Your patches looks fine to me. I think lets go with your patches  and we can abandon mine.

Does that count as a full Reviewed-by? If so please reply to the patches
with it.

Thanks, Daniel

> 
> Thanks
> Deepak
> 
> -----Original Message-----
> From: Jesse Barnes [mailto:jbarnes at virtuousgeek.org] 
> Sent: Wednesday, November 27, 2013 10:50 PM
> To: S, Deepak
> Cc: intel-gfx at lists.freedesktop.org
> Subject: Re: [Intel-gfx] [PATCH 1/2] drm/i915/vlv: correct promotion timer value for RC6 Timeout method.
> 
> On Wed, 27 Nov 2013 21:14:03 +0530
> deepak.s at intel.com wrote:
> 
> > From: Deepak S <deepak.s at intel.com>
> > 
> > For RC6 Timeout method, we need to set promotion timer to 1750 us ( 
> > 1367
> > * 1.28 us)
> > 
> > Signed-off-by: Deepak S <deepak.s at intel.com>
> > ---
> >  drivers/gpu/drm/i915/intel_pm.c | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/intel_pm.c 
> > b/drivers/gpu/drm/i915/intel_pm.c index 04e9863..cf3d54d 100644
> > --- a/drivers/gpu/drm/i915/intel_pm.c
> > +++ b/drivers/gpu/drm/i915/intel_pm.c
> > @@ -4102,7 +4102,8 @@ static void valleyview_enable_rps(struct drm_device *dev)
> >  	for_each_ring(ring, dev_priv, i)
> >  		I915_WRITE(RING_MAX_IDLE(ring->mmio_base), 10);
> >  
> > -	I915_WRITE(GEN6_RC6_THRESHOLD, 0xc350);
> > +	/* Timer for RC6 Timeout Mode set to 1750 us ( 1367 * 1.28 us) */
> > +	I915_WRITE(GEN6_RC6_THRESHOLD, 0x557);
> >  
> >  	/* allows RC6 residency counter to work */
> >  	I915_WRITE(VLV_COUNTER_CONTROL,
> 
> Yeah I just sent this one too.  I'm fine with either one getting in.  I also submitted one to do parallel restore of ring state, which we also want.
> 
> Care to review my earlier ones?
> 
> http://lists.freedesktop.org/archives/intel-gfx/2013-November/036112.html
> http://lists.freedesktop.org/archives/intel-gfx/2013-November/036111.html
> 
> Thanks,
> --
> Jesse Barnes, Intel Open Source Technology Center
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch



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