[Intel-gfx] [PATCH v6 0/3] Enable Pipewriteback

[Swati Sharma]

Hi Suraj,

CI is not green
https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_107440v9/shards-all.html?testfilter=kms_writeback

2/4 subtests are passing
writeback-fb-id subtest can be fixed by asserting EINVAL for i915
we need to fix writeback-check-output first
On local validation, we were getting CRC mismatch however CI results
show different issue 
https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_107440v9/shard-tglu-4/igt@kms_writeback@writeback-check-output.html#dmesg-warnings575
Please check the same if its relevant.

On 19-Sep-22 6:35 PM, Kandpal, Suraj wrote:
> A patch series was floated in the drm mailing list which aimed to change
> the drm_connector and drm_encoder fields to pointer in the
> drm_connector_writeback structure, this received a huge pushback from
> the community but since i915 expects each connector present in the
> drm_device list to be a intel_connector but drm_writeback framework
> makes us have a connector which cannot be embedded in an intel_connector
> structure.
> [1]
> https://patchwork.kernel.org/project/dri-devel/patch/20220202081702.22119-1-suraj.kandpal@intel.com/
> [2]
> https://patchwork.kernel.org/project/dri-devel/patch/20220202085429.22261-6-suraj.kandpal@intel.com/
> Since no one had an issue with encoder field being changed into a
> pointer it was decided to break the connector and encoder pointer
> changes into two different series.The encoder field changes is
> currently being worked upon by Abhinav Kumar and the changes have been
> merged.
> [3]https://patchwork.kernel.org/project/dri-devel/list/?series=633565
> Going forward we use a drm_connector which is not embedded in
> intel_connector.
> We also create a intel_encoder to avoid changes to many
> iterators but no intel_connector. We also changed all iterators that
> 
> ---v2
> solving BAT issues
> 
> ---v3
> -removing unecessary comments from i915_reg.h [Arun]
> -moving wd_init into its own if condition [Arun]
> -fixing comment styling and alignment in intel_wd.c [Arun]
> -removing continue from loop and calling function if condition is met
> [Arun]
> -removing useless arguments from intel_queue_writeback_job and
> intel_enabling_capture [Arun]
> 
> --v4
> Adding Reviewed-by to patches which were previously reviewd
> 
> --v5
> Adding Reviewed-by for patch 3
> 
> --v6
> Solving BAT issue
> changes for checkpatch to pass
> 
> Suraj Kandpal (3):
>    drm/i915: Define WD trancoder for i915
>    drm/i915 : Changing intel_connector iterators
>    drm/i915: Enabling WD Transcoder
> 
>   drivers/gpu/drm/i915/Makefile                 |   1 +
>   drivers/gpu/drm/i915/display/intel_acpi.c     |   8 +-
>   drivers/gpu/drm/i915/display/intel_crtc.c     |   6 +
>   .../drm/i915/display/intel_crtc_state_dump.c  |   1 +
>   drivers/gpu/drm/i915/display/intel_ddi.c      |   6 +
>   drivers/gpu/drm/i915/display/intel_display.c  |  68 +-
>   drivers/gpu/drm/i915/display/intel_display.h  |  18 +-
>   .../drm/i915/display/intel_display_debugfs.c  |  13 +-
>   .../drm/i915/display/intel_display_types.h    |  32 +-
>   drivers/gpu/drm/i915/display/intel_dpll.c     |   6 +
>   .../drm/i915/display/intel_modeset_setup.c    | 119 ++-
>   .../drm/i915/display/intel_modeset_verify.c   |  17 +-
>   drivers/gpu/drm/i915/display/intel_opregion.c |   3 +
>   drivers/gpu/drm/i915/display/intel_wd.c       | 694 ++++++++++++++++++
>   drivers/gpu/drm/i915/display/intel_wd.h       |  48 ++
>   drivers/gpu/drm/i915/i915_drv.h               |   1 +
>   drivers/gpu/drm/i915/i915_irq.c               |   8 +-
>   drivers/gpu/drm/i915/i915_pci.c               |   7 +-
>   drivers/gpu/drm/i915/i915_reg.h               | 137 ++++
>   19 files changed, 1137 insertions(+), 56 deletions(-)
>   create mode 100644 drivers/gpu/drm/i915/display/intel_wd.c
>   create mode 100644 drivers/gpu/drm/i915/display/intel_wd.h
> 

-- 
~Swati Sharma