[Intel-gfx] [PATCH 3/3] drm/i915: Add module parameter to remove RCS engine

[Chris Wilson]

Quoting Chris Wilson (2019-08-13 19:03:38)
> Quoting Stuart Summers (2019-08-13 18:41:21)
> > In some debug scenarios, it might be interesting to load
> > a platform without support for the render command streamer.
> > Add a module parameter to allow this platform configuration.
> > 
> > Signed-off-by: Stuart Summers <stuart.summers at intel.com>
> 
> Interesting, aside from that we shall never add a new modparam for users
> to beat us with except under extreme duress, I would have made this a
> ring_mask. Default to -1ull, mask off the rings you wish to exclude.

For the use I have in mind, we will have to treat the ids as uabi. So it
can't be a simple case of matching up to our internal mask. I guess it
will just have to be a list of correspondences.
-Chris