<div class="gmail_quote">On Tue, Feb 14, 2012 at 19:09, Ben Widawsky <<a href="mailto:ben@bwidawsk.net">ben@bwidawsk.net</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> From: Ben Widawsky <<a href="mailto:bwidawsk@gmail.com">bwidawsk@gmail.com</a>> Create all the necessary data structures and hooks to support a context API for userspace. Also plumb in the calls from the i915 core into the context subsystem. There is a new file i915_context.c which will hold a majority of the context related code. This file has nulled functions that get called by the proper part of the i915 driver. This of course requires a Makefile addition, as well as calls to the new nulled functions from the other partsd of the driver (i915_dma.c). With that, there are 2 new ioctls defined , one for creating a context, and one for destroying a context. These are defined in the necessary places, and again have null functionality It's likely that a third ioctl will be required to associate the context with an execbuf (likely execbuf3). Since that part is mostly trivial, and will surely be contentious, it's ignored for now. Signed-off-by: Ben Widawsky <<a href="mailto:ben@bwidawsk.net">ben@bwidawsk.net</a>> </blockquote><div> Reviewed-by: Eugeni Dodonov <<a href="mailto:eugeni.dodonov@intel.com">eugeni.dodonov@intel.com</a>> </div></div>-- Eugeni Dodonov<a href="http://eugeni.dodonov.net/" target="_blank"> </a>