Re: [igt-dev] [PATCH i-g-t v2 2/3] i915/gem_engine_topology: Add compute class

["Dixit, Ashutosh" <ashutosh.dixit@intel.com>]

On Tue, 16 Nov 2021 02:19:21 -0800, Tvrtko Ursulin wrote:
> >> diff --git a/lib/i915/gem_engine_topology.c b/lib/i915/gem_engine_topology.c
> >> index 4e497a5c..729f42b0 100644
> >> --- a/lib/i915/gem_engine_topology.c
> >> +++ b/lib/i915/gem_engine_topology.c
> >> @@ -130,6 +130,7 @@ static const char *class_names[] = {
> >>	[I915_ENGINE_CLASS_COPY]	  = "bcs",
> >>	[I915_ENGINE_CLASS_VIDEO]	  = "vcs",
> >>	[I915_ENGINE_CLASS_VIDEO_ENHANCE] = "vecs",
> >> +	[I915_ENGINE_CLASS_COMPUTE]       = "ccs",
>
> When are the i915 patches planned to appear?
>
> Asking since there are user requests to add compute engine support to
> intel_gpu_top and I am a bit unsure of the plans, given no platform
> currently exports the engine but IGT code apparently went in.

I understand CCS patches have been posted but are now blocked on adequate
IGT test coverage. Maybe it's ok to add CCS support to IGT intel_gpu_top
first as long as we are using the engine query (CCS is absent from legacy
engines) since the kernel will not return CCS?