[Intel-gfx] [PATCH 0/5] Per client engine busyness

[Chris Wilson]

Quoting Tvrtko Ursulin (2019-12-16 12:06:59)
> Implementation wise we add a a bunch of files in sysfs like:
> 
>         # cd /sys/class/drm/card0/clients/
>         # tree
>         .
>         ├── 7
>         │   ├── busy
>         │   │   ├── 0

Prefer '0' over rcs?

> I will post the corresponding patch to intel_gpu_top for reference as well.

The other requirement is that we need to at least prove the sysfs
interface exists in gt. perf_sysfs?

Quick list,
- check igt_spin_t responses (pretty much verbatim of perf_pmu.c)
- check the client name is correct around fd passing
- check interactions with ctx->engines[]
-Chris