Re: [Intel-gfx] [PATCH 0/3] drm/dp: Move DisplayPort helpers into own module

[Jani Nikula <jani.nikula@linux.intel.com>]

On Mon, 13 Dec 2021, Thomas Zimmermann <tzimmermann@suse.de> wrote:
> Split-off DisplayPort functions from KMS helper library and move them
> into their own module. Reduces the size of drm_kms_helper.ko by ~50%.
>
> This patchset is part of an on-going effort to reduce the minimum
> binary size of the DRM core and helpers. It's helpful for systems with
> early-boot DRM graphics, which requires DRM to be linked into the
> kernel image.

Would it be time to add a subdirectory for each non-driver, non-core drm
module? We've touched this topic before. I find it increasingly hard to
remember which files are part of helpers. This would also help with the
arbitrary drm_dp_helper_mod.c naming.

Perhaps drivers/gpu/drm/drm_dp/?

BR,
Jani.



>
> Thomas Zimmermann (3):
>   drm/dp_mst: Remove trailing whitespace.
>   drm/dp: Move DP declarations into separate header file
>   drm/dp: Move DisplayPort helpers into separate helper module
>
>  drivers/gpu/drm/Kconfig                       |  8 ++++++
>  drivers/gpu/drm/Makefile                      | 14 ++++++----
>  drivers/gpu/drm/bridge/Kconfig                |  4 +++
>  drivers/gpu/drm/bridge/analogix/Kconfig       |  2 ++
>  drivers/gpu/drm/bridge/cadence/Kconfig        |  1 +
>  drivers/gpu/drm/drm_crtc_helper_internal.h    | 27 ------------------
>  drivers/gpu/drm/{drm_dp_helper.c => drm_dp.c} |  2 +-
>  drivers/gpu/drm/drm_dp_aux_dev.c              |  2 +-
>  drivers/gpu/drm/drm_dp_helper_internal.h      | 28 +++++++++++++++++++
>  drivers/gpu/drm/drm_dp_helper_mod.c           | 22 +++++++++++++++
>  drivers/gpu/drm/drm_dp_mst_topology.c         |  4 +--
>  drivers/gpu/drm/drm_kms_helper_common.c       | 14 ----------
>  drivers/gpu/drm/i915/Kconfig                  |  1 +
>  drivers/gpu/drm/msm/Kconfig                   |  1 +
>  drivers/gpu/drm/nouveau/Kconfig               |  1 +
>  drivers/gpu/drm/rockchip/Kconfig              |  1 +
>  drivers/gpu/drm/tegra/Kconfig                 |  1 +
>  drivers/gpu/drm/xlnx/Kconfig                  |  1 +
>  18 files changed, 83 insertions(+), 51 deletions(-)
>  rename drivers/gpu/drm/{drm_dp_helper.c => drm_dp.c} (99%)
>  create mode 100644 drivers/gpu/drm/drm_dp_helper_internal.h
>  create mode 100644 drivers/gpu/drm/drm_dp_helper_mod.c
>
>
> base-commit: 3f422828221d9ceefcddef0be33561b1646a1cbe
> prerequisite-patch-id: c2b2f08f0eccc9f5df0c0da49fa1d36267deb11d
> prerequisite-patch-id: c67e5d886a47b7d0266d81100837557fda34cb24
> --
> 2.34.1
>

-- 
Jani Nikula, Intel Open Source Graphics Center