[PATCH v5 2/3] drm/xe/ufence: Flush xe ordered_wq in case of ufence timeout

[Matthew Auld]

On 29/10/2024 12:01, Nirmoy Das wrote:
> Flush xe ordered_wq in case of ufence timeout which is observed
> on LNL and that points to recent scheduling issue with E-cores.
> 
> This is similar to the recent fix:
> commit e51527233804 ("drm/xe/guc/ct: Flush g2h worker in case of g2h
> response timeout") and should be removed once there is a E-core
> scheduling fix for LNL.
> 
> v2: Add platform check(Himal)
>      s/__flush_workqueue/flush_workqueue(Jani)
> v3: Remove gfx platform check as the issue related to cpu
>      platform(John)
> v4: Use the Common macro(John) and print when the flush resolves
>      timeout(Matt B)
> 
> Cc: Badal Nilawar <badal.nilawar at intel.com>
> Cc: Matthew Auld <matthew.auld at intel.com>
> Cc: John Harrison <John.C.Harrison at Intel.com>
> Cc: Himal Prasad Ghimiray <himal.prasad.ghimiray at intel.com>
> Cc: Lucas De Marchi <lucas.demarchi at intel.com>
> Cc: <stable at vger.kernel.org> # v6.11+
> Link: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/2754
> Suggested-by: Matthew Brost <matthew.brost at intel.com>
> Signed-off-by: Nirmoy Das <nirmoy.das at intel.com>
Reviewed-by: Matthew Auld <matthew.auld at intel.com>