On Mon, 20 Aug 2012 23:17:06 +0200, Daniel Vetter <dan...@ffwll.ch> wrote:
> On Sat, Aug 11, 2012 at 03:41:26PM +0100, Chris Wilson wrote:
> > Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
> 
> Since most of the overlay-supporting hw uses physical mem for the overlay
> I think this isn't much worth it: The additional frobbery in
> attach/detach_phys object is likely more work than we'll anything we'll
> ever gain from using stolen mem here. Especially since we'll use stolen
> mem already for the rings.

In a straw poll of the machines on my desk, non-physical machines outnumber the 
physical overlay machines. :-p

However, hooking up the physical to use stolen is also a good idea. Too
bad, I haven't found a way to detect the base of stolen memory on gen2
devices without arch specific internals. It worked nicely right up until
I tried to build i915.ko as a module.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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