The CI Bug Log issue associated to this bug has been updated.

### New filters associated

* CML ICL TGL: igt@kms_atomic@plane_primary_overlay_zpos - skip - Test requirement: igt_plane_has_format_mod(overlay, format_overlay, 0x0) Subtest plane_primary_overlay_zpos: SKIP
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6852/shard-iclb5/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_3429/shard-iclb1/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6843/shard-iclb2/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_3425/shard-iclb4/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6844/shard-iclb7/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14304/shard-iclb5/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14305/shard-iclb2/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6846/shard-iclb2/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6847/shard-iclb8/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14306/shard-iclb2/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5173/shard-iclb7/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6845/shard-iclb4/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6848/shard-iclb2/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_4945/shard-iclb7/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_4946/shard-iclb7/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14307/shard-iclb1/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_4950/shard-iclb8/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14309/shard-iclb8/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14310/shard-iclb4/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6849/shard-iclb3/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14313/shard-iclb7/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_3426/shard-iclb5/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_4953/shard-iclb1/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14315/shard-iclb8/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_3427/shard-iclb8/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6850/shard-iclb5/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14316/shard-iclb1/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_363/fi-cml-u2/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_363/fi-icl-dsi/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_363/fi-icl-u2/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_363/fi-icl-u3/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_363/fi-icl-u4/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_363/fi-tgl-u/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14318/shard-iclb3/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14319/shard-iclb1/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_3428/shard-iclb6/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_364/fi-cml-u2/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_364/fi-icl-dsi/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_364/fi-icl-guc/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_364/fi-icl-u2/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_364/fi-icl-u3/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_364/fi-icl-u4/igt@kms_atomic@plane_primary_overlay_zpos.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_364/fi-tgl-u/igt@kms_atomic@plane_primary_overlay_zpos.html

Earlier we used to get https://bugs.freedesktop.org/show_bug.cgi?id=110034; IGT skip because zpos property not implemented in i915 driver. 

Recently only immutable zpos property got added into i915 driver
https://patchwork.freedesktop.org/patch/298497/?series=58761&rev=3; IGT skip because plane format is not supported by i915->valid

However, as discussed with Maarten this test won't work anyway since test assumes mutable zpos and i915 enabled immutable zpos. 

Test here should check whether zpos is immutable or mutable and on that basis should give valid reason of skip.

*User Impact:* This will not cause any functional failure and there won't be much of user impact due to this since i915 implements immutable zpos property where we inform userspace about the *hard-coded* stacking of overlay planes.

The existing test anyhow doesn't test immutable zpos property and only validates mutable zpos property. Either we need to redesign existing test case to validate immutable zpos property(which isn't good option since its not CRC based) or create a new subtest validating immutable zpos property using CRC.

This can be put as low/medium priority.

-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/drm/intel/issues/404.