[Intel-gfx] [PATCH 1/8] drm/i915: Synchronize pread/pwrite with wait_rendering

[Chris Wilson]

On Fri, Aug 30, 2013 at 04:43:54PM -0700, Ben Widawsky wrote:
> lifted from Daniel:
> pread/pwrite isn't about the object's domain at all, but purely about
> synchronizing for outstanding rendering. Replacing the call to
> set_to_gtt_domain with a wait_rendering would imo improve code
> readability. Furthermore we could pimp pread to only block for
> outstanding writes and not for reads.
> 
> Since you're not the first one to trip over this: Can I volunteer you
> for a follow-up patch to fix this?
> 
> Recommended-by: Daniel Vetter <daniel.vetter at ffwll.ch>
> Signed-off-by: Ben Widawsky <ben at bwidawsk.net>

This should fail i-g-t...
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre