[PATCH v2 0/3] Resolve suspend-resume racing with GuC destroy-context-worker

[Teres Alexis, Alan Previn]

On Mon, 2023-08-14 at 18:12 -0700, Teres Alexis, Alan Previn wrote:
> This series is the result of debugging issues root caused to
> races between the GuC's destroyed_worker_func being triggered
> vs repeating suspend-resume cycles with concurrent delayed
> fence signals for engine-freeing.
alan: forgot credit:
Tested-by: Mousumi Jana <mousumi.jana at intel.com>

alan:snip.
> 
> 
> Alan Previn (3):
>   drm/i915/guc: Flush context destruction worker at suspend
>   drm/i915/guc: Close deregister-context race against CT-loss
>   drm/i915/gt: Timeout when waiting for idle in suspending
> 
>  drivers/gpu/drm/i915/gt/intel_engine_cs.c     |  2 +-
>  drivers/gpu/drm/i915/gt/intel_gt_pm.c         |  7 ++-
>  drivers/gpu/drm/i915/gt/intel_gt_pm.h         |  7 ++-
>  .../gpu/drm/i915/gt/uc/intel_guc_submission.c | 45 +++++++++++++++++--
>  .../gpu/drm/i915/gt/uc/intel_guc_submission.h |  2 +
>  drivers/gpu/drm/i915/gt/uc/intel_uc.c         |  2 +
>  drivers/gpu/drm/i915/intel_wakeref.c          | 14 ++++--
>  drivers/gpu/drm/i915/intel_wakeref.h          |  5 ++-
>  8 files changed, 71 insertions(+), 13 deletions(-)
> 
> 
> base-commit: 85f20fb339f05ec4221bb295c13e46061c5c566f