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

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Hi

Am 13.12.21 um 14:34 schrieb Jani Nikula:
On Mon, 13 Dec 2021, Thomas Zimmermann <tzimmermann@xxxxxxx> 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/?

It's probably worth it, but I'd prefer a separate patchset and discussion over this. It affects several modules.

If adding drm_dp_helper_mod.c is overkill, that module code can also be added to drm_dp.c for now.

Best regards
Thomas


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



--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Ivo Totev

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