[PATCH] drm/xe: Get hwe domain specific FW to read RING_TIMESTAMP

[Umesh Nerlige Ramappa]

On Thu, Jun 27, 2024 at 04:51:05PM -0700, Umesh Nerlige Ramappa wrote:
>Per client engine utilization uses RING_TIMESTAMP to return
>drm-total-cycles to the user. Current code uses XE_FW_GT to read this
>register on the first available engine in a GT. When testing on DG2, it
>is observed that this value is 0 when running test on some engines. To
>resolve that, get the hwe domain specific FW for reading the engine
>timestamp.
>
>v2:
>- update commit message
>- use domain specific FW (Matt)
>
>v3:
>- Drop check for hwe in the helper (Matt, Michal)
>
>v4:
>- checkpatch fixes
>
>v5: Rebase
>
>Fixes: 188ced1e0ff8 ("drm/xe/client: Print runtime to fdinfo")
>Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa at intel.com>
>Reviewed-by: Matt Roper <matthew.d.roper at intel.com>
>Reviewed-by: Lucas De Marchi <lucas.demarchi at intel.com>
>---

pushed,

thanks,
Umesh