[PATCH] drm/xe/uapi: Rename xe perf layer as xe observation layer

[Dixit, Ashutosh]

On Tue, 02 Jul 2024 14:40:34 -0700, Ashutosh Dixit wrote:
>
> In Xe, the perf layer allows capture of HW counter streams. These HW
> counters are generally performance related but don't have to be necessarily
> so. Also, the name "perf" is a carryover from i915 and is not preferred.
>
> Here we propose the name "observation" for this common layer which allows
> capture of different types of these counter streams.
>
> v2: Rename observability layer to observation layer and in code
>     s/obsrv/observation/ (Lucas/Rodrigo)

Note for reviewers:

There are no semantic changes in this patch. Only different
ioctl/structs/enums are renamed using basically s/perf/observation/I and
comments in code are similarly changed.

/proc/sys/dev/xe/perf_stream_paranoid file is now changed to
/proc/sys/dev/xe/xe_observation_paranoid.

Thanks.
--
Ashutosh