[Intel-gfx] [PATCH 02/22] drm/i915: Move intel_engine_mask_t around for use by i915_request_types.h

[Chris Wilson]

Quoting Tvrtko Ursulin (2019-03-18 10:21:41)
> 
> On 18/03/2019 09:51, Chris Wilson wrote:
> > We want to use intel_engine_mask_t inside i915_request.h, which means
> > extracting it from the general header file mess and placing it inside a
> > types.h. A knock on effect is that the compiler wants to warn about
> > type-contraction of ALL_ENGINES into intel_engine_maskt_t, so prepare
> > for the worst.
> 
> We can't do:
> 
> #define ALL_ENGINES ((intel_engine_mask_t)-1)
> 
> to avoid this warning and a lot of the churn?

The churn is a lot of type fixing which needs to be done at some point.
I'm not keen on passing the contracted intel_engine_mask_t, and
ALL_ENGINES is not all bits set.
-Chris