[RFC][PATCH] Atomic page flip WIP

ville.syrjala at linux.intel.com ville.syrjala at linux.intel.com
Wed Sep 12 08:47:03 PDT 2012

I'm posting this as rather raw just to get a bit more substance to the

The drm_flip thingy may seem a bit too mid-layerish for people's taste,
but at least it is almost completely driven by explicit function calls
from the driver (the wq side is the exception naturally).

I originally wrote drm_flip for Medfield, where I used it syncronize the
pipe's primary layer and one or two video overlays (gen3 style overlays).
So it's a fairly well proven tehnology. I can post a version of the video
overlay code too in case someone would be interested in having drm_planes
on gen3 hardware.

This set applies on top of my earlier drm_atomic_4 branch:

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