Messages in this thread | | | Date | Tue, 22 Nov 2011 20:15:31 +0000 | From | Matthew Garrett <> | Subject | Re: [PATCH] drm/i915: By default, enable RC6 on IVB and SNB when reasonable |
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On Fri, Nov 18, 2011 at 10:41:29PM -0800, Keith Packard wrote:
> + /* > + * Only enable RC6 if all dma remapping is disabled, or if > + * there's no iommu present in the machine. > + */ > + if (INTEL_INFO(dev)->gen == 6) > + return no_iommu || dmar_disabled;
So the user has to choose between 5W of power saving or having dmar? And we default to giving them dmar? I think that's going to come as a surprise to people.
-- Matthew Garrett | mjg59@srcf.ucam.org
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