On Mon, Aug 12, 2013 at 3:07 PM,  <ville.syrj...@linux.intel.com> wrote:
> From: Ville Syrjälä <ville.syrj...@linux.intel.com>
>
> IVB/BYT also has the same L3 cacheability control in MOCS as HSW,
> so let's make use of it.

According to the discussion we had on #intel-gfx a few weeks ago, on
IVB all Mesa memory is already marked as cached in DRM allocated PTEs.
So this should not have any effect. Or I'm misunderstanding something.

As I understand, marking everything uncacheable and then marking just
certain things cacheable could make a difference (since AFAIK, you
can't mark select regions as uncacheable after you mark PTEs as
cacheable on IVB).

Can somebody more knowledgeable comment?
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