[Intel-gfx] [PATCH 02/18] drm/i915: Semaphore MBOX update generalization

[Damien Lespiau]

On Tue, May 28, 2013 at 07:22:18PM -0700, Ben Widawsky wrote:
> This replaces the existing MBOX update code with a more generalized
> calculation for emitting mbox updates. We also create a sentinel for
> doing the updates so we can more abstractly deal with the rings.
> 
> When doing MBOX updates the code must be aware of the /other/ rings.
> Until now the platforms which supported semaphores had a fixed number of
> rings and so it made sense for the code to be very specialized
> (hardcoded).
> 
> The patch does contain a functional change, but should have no
> behavioral changes.
> 
> Signed-off-by: Ben Widawsky <ben at bwidawsk.net>

Reviewed-by: Damien Lespiau <damien.lespiau at intel.com>

-- 
Damien