[PATCH] drm/xe/oa: Expose media OA units

[Dixit, Ashutosh]

On Fri, 16 May 2025 11:09:13 -0700, Ashutosh Dixit wrote:
>
> +	/*
> +	 * XE_OAM_UNIT_SAG has only GSCCS attached to it, but only on some platforms. Also
> +	 * GSCCS cannot be used to submit batches to program the OAM unit. Therefore we don't
> +	 * assign an OA unit to GSCCS. This means that XE_OAM_UNIT_SAG is exposed as an OA
> +	 * unit without attached engines. However OA streams can still be opened on it.
> +	 */

Note that with this patch, OA streams can only be opened on the SCMI OAM
units, not on the OAM-SAG unit. To enable opening streams on OAM-SAG more
changes are needed (since OAM-SAG doesn't have an engine attached to
it). This work will be done via follow up patches.

Thanks.
--
Ashutosh