[Intel-gfx] [PATCH v5 2/9] drm/i915: Define an engine class enum for the uABI

[Lionel Landwerlin]

On 08/11/17 19:14, Chris Wilson wrote:
>   
> +/*
> + * Different engines serve different roles, and there may be more than one
> + * engine serving each role. enum drm_i915_gem_engine_class provides a
> + * classification of the role of the engine, which may be used when requesting
> + * operations to be performed on a certain subset of engines, or for providing
> + * information about that group.
> + */
> +enum drm_i915_gem_engine_class {
> +	I915_ENGINE_CLASS_OTHER = 0,
> +	I915_ENGINE_CLASS_RENDER = 1,
> +	I915_ENGINE_CLASS_COPY = 2,
> +	I915_ENGINE_CLASS_VIDEO = 3,
> +	I915_ENGINE_CLASS_VIDEO_ENHANCE = 4,
> +};
> +
I've tried to build a bit UI in GPUTop to show this.
I'm a bit skeptical about the OTHER type because if this enum is meant 
to be extended, then why do we need an OTHER class? We should create new 
classes instead.

-
Lionel