[RFC PATCH 0/3] drm: introduce new method of creating debugfs files.

Wambui Karuga wambui.karugax at gmail.com
Wed May 13 11:41:26 UTC 2020

Hi All,

Currently drm debugfs files are created using drm_debugfs_create_files()
on request.
This series introduces new functions and infrastructure that will enable
the mass creation of debugfs files during drm_dev_register(). Drivers can
request for the creation of debugfs files at any time using two new
functions: drm_debugfs_add_files()/drm_debugfs_add_file(). The file
requests are added to a list and tracked until drm_dev_register() when
the files are created all at once.

This concept was already in use by the drm/vc4 driver and this series
tries to introduce the same infrastructure in drm core.
Patch 2 removes vc4's functions doing the same, and replaces it
with the new drm core functions.
Patch 3 is an example of how the new functions and structs can replace
the existing drm_info_list and drm_debugfs_create_files() usage.

Hoping to get some feedback or comments on the current progress of this

wambui karuga

Wambui Karuga (3):
  drm/debugfs: create debugfs files during drm_dev_register().
  drm/vc4: use new debugfs functions for file creation.
  drm: use new debugfs functions for various files.

 drivers/gpu/drm/drm_atomic.c      | 11 +++---
 drivers/gpu/drm/drm_client.c      | 11 +++---
 drivers/gpu/drm/drm_debugfs.c     | 59 ++++++++++++++++++++++++++++---
 drivers/gpu/drm/drm_drv.c         |  2 ++
 drivers/gpu/drm/drm_framebuffer.c | 11 +++---
 drivers/gpu/drm/vc4/vc4_bo.c      |  4 +--
 drivers/gpu/drm/vc4/vc4_debugfs.c | 38 +++++---------------
 drivers/gpu/drm/vc4/vc4_hdmi.c    |  4 +--
 drivers/gpu/drm/vc4/vc4_hvs.c     |  4 +--
 drivers/gpu/drm/vc4/vc4_v3d.c     |  4 +--
 include/drm/drm_debugfs.h         | 38 ++++++++++++++++++++
 include/drm/drm_device.h          | 12 +++++++
 12 files changed, 138 insertions(+), 60 deletions(-)


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