[Intel-gfx] ✗ Fi.CI.BAT: failure for drm/i915/guc: GuC suspend path cleanup

[Chris Wilson]

Quoting Patchwork (2019-03-21 19:26:27)
> == Series Details ==
> 
> Series: drm/i915/guc: GuC suspend path cleanup
> URL   : https://patchwork.freedesktop.org/series/58370/
> State : failure
> 
> == Summary ==
> 
> CI Bug Log - changes from CI_DRM_5789 -> Patchwork_12553
> ====================================================
> 
> Summary
> -------
> 
>   **FAILURE**
> 
>   Serious unknown changes coming with Patchwork_12553 absolutely need to be
>   verified manually.
>   
>   If you think the reported changes have nothing to do with the changes
>   introduced in Patchwork_12553, please notify your bug team to allow them
>   to document this new failure mode, which will reduce false positives in CI.
> 
>   External URL: https://patchwork.freedesktop.org/api/1.0/series/58370/revisions/1/mbox/
> 
> Possible new issues
> -------------------
> 
>   Here are the unknown changes that may have been introduced in Patchwork_12553:
> 
> ### IGT changes ###
> 
> #### Possible regressions ####
> 
>   * igt at gem_exec_suspend@basic-s3:
>     - fi-apl-guc:         PASS -> DMESG-WARN

That says we turned the guc off before completing the idle sequence, so
the intel_uc_suspend() has to be after the flush_workqueues.
-Chris