On 6/28/2013 9:35 PM, Chris Wilson wrote:
On Fri, Jun 28, 2013 at 05:24:50PM +0300, Ville Syrjälä wrote:
On Fri, Jun 28, 2013 at 07:45:31PM +0530, Vijay Purushothaman wrote:
Since the sprite planes are using synchronized MMIO based flip, no need
to wait for vblank. Removing this wait allows us to get a nice
performance boost to both 3D & media workloads based on sprite (~60 fps
from ~20 fps)
Nak. We can't unpin the buffer until the hardware has finished reading
from it.
The proper fix is to do the unpin asynchronously after the flip has
completed. That's one part of the bigger atomic pageflip story.
The interested reader is invited to review the patches to do async
unpinning here and in set-base sent many, many moons ago.
-Chris
Thanks Chris. I will try to dig for those patches. In case if you have
the pointers handy, would you mind pointing me to the patch series?
Thanks,
Vijay
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