[Intel-gfx] [PATCH 13/15] drm/i915: Implement GTT variants of pread

Chris Wilson chris at chris-wilson.co.uk
Thu Mar 24 20:47:42 CET 2011


On Thu, 24 Mar 2011 10:44:40 -0700, Keith Packard <keithp at keithp.com> wrote:
> On Wed, 23 Mar 2011 17:30:22 +0000, Chris Wilson <chris at chris-wilson.co.uk> wrote:
> 
> > Right, so snooped pages goes through the shmem paths, nothing changes. Not
> > everything is as nice as SNB and keeping the pages in the GTT is a benefit
> > for everything else.
> 
> Where's the data.

Hmm. Right, I was thinking of the read-modify-write cycle of GDK, but none
of that will hit the linear pread. And even for that there is a better
method.

Shelved until proven useful.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre



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