Re: [PATCH 1/2] drm/i915/xehp: Add compute engine ABI

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On Mon, Apr 25, 2022 at 11:41:36AM +0100, Tvrtko Ursulin wrote:
> 
> On 22/04/2022 20:50, Matt Roper wrote:
> > We're now ready to start exposing compute engines to userspace.
> > 
> > While we're at it, let's extend the kerneldoc description for the other
> > engine types as well.
> > 
> > Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx>
> > Cc: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxxxxxxxx>
> > Cc: Vinay Belgaumkar <vinay.belgaumkar@xxxxxxxxx>
> > Cc: Jordan Justen <jordan.l.justen@xxxxxxxxx>
> > Cc: Szymon Morek <szymon.morek@xxxxxxxxx>
> > UMD (mesa): https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14395
> > UMD (compute): https://github.com/intel/compute-runtime/pull/451
> 
> The compute one points to a commit named "Add compute engine class for xehp"
> but content of which seems more about engine query, including the yet
> non-existent distance query (and more)?! I certainly does not appear to be
> adding a definition of I915_ENGINE_CLASS_COMPUTE. This needs clarifying.
> 

Hi Syzmon, any updates on the compute UMD merge request here?  Is there
a different merge request we should reference for now that just uses the
I915_ENGINE_CLASS_COMPUTE without also relying on the
DRM_I915_QUERY_DISTANCE_INFO that we aren't upstreaming just yet?

I believe distance info is only useful for multi-tile platforms and
isn't necessary for general use of compute engines on a single tile
platform.

Thanks.


Matt

-- 
Matt Roper
Graphics Software Engineer
VTT-OSGC Platform Enablement
Intel Corporation
(916) 356-2795



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