igt@gem_exec_suspend@basic-s3@smem - incomplete - PM: suspend entry (deep)

https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_12219/shard-dg2-11/igt@gem_exec_suspend@basic-s3@smem.html

Dmesg	
<7> [184.848023] i915 0000:03:00.0: [drm:intel_power_well_disable [i915]] disabling AUX_C
<6> [184.891690] Console: switching to colour dummy device 80x25
<6> [184.891768] [IGT] gem_exec_suspend: executing
<7> [184.893875] i915 0000:03:00.0: [drm:i915_gem_open [i915]] 
<7> [184.895436] i915 0000:03:00.0: [drm:i915_drop_caches_set [i915]] Dropping caches: 0x000001dc [0x000001dc]
<7> [184.904256] i915 0000:03:00.0: [drm:i915_gem_open [i915]] 
<7> [184.905525] i915 0000:03:00.0: [drm:i915_gem_open [i915]] 
<6> [184.918215] [IGT] gem_exec_suspend: starting subtest basic-S3
<6> [184.918312] [IGT] gem_exec_suspend: starting dynamic subtest smem
<7> [184.918766] [drm:eb_validate_vma [i915]] EINVAL at eb_validate_vma:509
<7> [184.942794] [drm:eb_validate_vma [i915]] EINVAL at eb_validate_vma:509
<7> [184.943207] i915 0000:03:00.0: [drm:i915_drop_caches_set [i915]] Dropping caches: 0x0000005c [0x0000005c]
<7> [185.887504] i915 0000:03:00.0: [drm:i915_drop_caches_set [i915]] Dropping caches: 0x0000005c [0x0000005c]
<7> [185.923812] i915 0000:03:00.0: [drm:i915_drop_caches_set [i915]] Dropping caches: 0x0000005c [0x0000005c]
<6> [186.866841] PM: suspend entry (deep)
<6> [186.867579] Filesystems sync: 0.000 seconds