[PATCH v2 00/15] drm/vkms: Allow to configure device

[José Expósito]

Hi everyone,

In preparation for ConfigFS support, a flexible way to configure VKMS device(s)
is required.
This series adds the required APIs to create a configuration, the code changes
required to apply it and KUnit test validating the changes.

Louis Chauvet and I are working on ConfigFS support. In this series I tried to
merge his changes [1] with mine [2].
I kept his Signed-off-by to reflect that, even if I show up as the author of
some/most of the patches, this was a joint effort.

I'll send the the ConfigFS code [3] and its IGT tests [4] code this or next week.
Meanwhile, the IGT tests also exercise this series and can be used for additional
test coverage.

Best wishes,
José Expósito

[1] https://patchwork.kernel.org/project/dri-devel/cover/20250121-google-remove-crtc-index-from-parameter-v3-0-cac00a3c3544@bootlin.com/
[2] https://patchwork.kernel.org/project/dri-devel/cover/20240813105134.17439-1-jose.exposito89@gmail.com/
[3] https://github.com/JoseExposito/linux/commits/patch-vkms-configfs/
[4] https://gitlab.freedesktop.org/jexposit/igt-gpu-tools/-/commits/vkms-configfs

Changes in v2:

  - Applied review comments by Louis Chauvet (thanks!!):
    - Added Co-developped-by tags where required
    - Split the first patch in 2: vkms_connector.h/c creation and struct
      vkms_connector creation
    - Fixes a user after free/double free bug. The bug is already present
      in drm-misc-next and the fix could be merged independently
    - Implemented for_each macros for the config
    - Other naming fixes
  - Link to v1: https://lore.kernel.org/all/20250129110059.12199-1-jose.exposito89@gmail.com/

José Expósito (14):
  drm/vkms: Fix use after free and double free on init error
  drm/vkms: Extract vkms_connector header
  drm/vkms: Create vkms_connector struct
  drm/vkms: Add KUnit test scaffolding
  drm/vkms: Extract vkms_config header
  drm/vkms: Move default_config creation to its own function
  drm/vkms: Set device name from vkms_config
  drm/vkms: Allow to configure multiple planes
  drm/vkms: Allow to configure multiple CRTCs
  drm/vkms: Allow to attach planes and CRTCs
  drm/vkms: Allow to configure multiple encoders
  drm/vkms: Allow to attach encoders and CRTCs
  drm/vkms: Allow to configure multiple connectors
  drm/vkms: Allow to attach connectors and encoders

Louis Chauvet (1):
  drm/vkms: Add a validation function for VKMS configuration

 .clang-format                                 |   7 +
 drivers/gpu/drm/vkms/Kconfig                  |  15 +
 drivers/gpu/drm/vkms/Makefile                 |   5 +-
 drivers/gpu/drm/vkms/tests/.kunitconfig       |   4 +
 drivers/gpu/drm/vkms/tests/Makefile           |   3 +
 drivers/gpu/drm/vkms/tests/vkms_config_test.c | 826 ++++++++++++++++++
 drivers/gpu/drm/vkms/vkms_config.c            | 606 +++++++++++++
 drivers/gpu/drm/vkms/vkms_config.h            | 429 +++++++++
 drivers/gpu/drm/vkms/vkms_connector.c         |  61 ++
 drivers/gpu/drm/vkms/vkms_connector.h         |  26 +
 drivers/gpu/drm/vkms/vkms_drv.c               |  60 +-
 drivers/gpu/drm/vkms/vkms_drv.h               |  19 +-
 drivers/gpu/drm/vkms/vkms_output.c            | 176 ++--
 13 files changed, 2089 insertions(+), 148 deletions(-)
 create mode 100644 drivers/gpu/drm/vkms/tests/.kunitconfig
 create mode 100644 drivers/gpu/drm/vkms/tests/Makefile
 create mode 100644 drivers/gpu/drm/vkms/tests/vkms_config_test.c
 create mode 100644 drivers/gpu/drm/vkms/vkms_config.c
 create mode 100644 drivers/gpu/drm/vkms/vkms_config.h
 create mode 100644 drivers/gpu/drm/vkms/vkms_connector.c
 create mode 100644 drivers/gpu/drm/vkms/vkms_connector.h

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2.48.1