[PATCH 00/10] drm: Hide import_attach from GEM code and helpers

[Christian König]

Reviewed-by: Christian König <christian.koenig at amd.com> for the entire series.

Regards,
Christian.

Am 26.02.25 um 18:03 schrieb Thomas Zimmermann:
> Do not use struct drm_gem_object.import_attach unnecessarily. The
> field is set by the PRIME import helpers. GEM and other helpers use
> it for testing for imported dma-bufs and retrieving the respective
> dma-buf instance.
>
> Replace all tests for import_attach with the new GEM helper function
> drm_gem_is_imported(). The helper avoids import_attach in favor of
> testing the imported dma-buf's object against the provided GEM object.
>
> Also replace references to import_attach.dmabuf. The imported dma-buf
> is also available in the GEM object's dma_buf field.
>
> This series cleans up the GEM core and helpers. Drivers also use
> import_attach and should later be updated as well.
>
> There's a TODO item for making import_attach entirely optional. This
> series is a first step towards this goal.
>
> Thomas Zimmermann (10):
>   drm/gem: Test for imported GEM buffers with helper
>   drm/gem-dma: Test for imported buffers with drm_gem_is_imported()
>   drm/gem-dma: Use dma_buf from GEM object instance
>   drm/gem-shmem: Test for imported buffers with drm_gem_is_imported()
>   drm/gem-shmem: Use dma_buf from GEM object instance
>   drm/gem-framebuffer: Test for imported buffers with
>     drm_gem_is_imported()
>   drm/gem-framebuffer: Use dma_buf from GEM object instance
>   drm/fb-dma-helper: Test for imported buffers with
>     drm_gem_is_imported()
>   drm/mipi-dbi: Test for imported buffers with drm_gem_is_imported()
>   drm/prime: Use dma_buf from GEM object instance
>
>  drivers/gpu/drm/drm_fb_dma_helper.c          |  2 +-
>  drivers/gpu/drm/drm_gem.c                    |  4 +--
>  drivers/gpu/drm/drm_gem_dma_helper.c         |  4 +--
>  drivers/gpu/drm/drm_gem_framebuffer_helper.c | 12 +++-----
>  drivers/gpu/drm/drm_gem_shmem_helper.c       | 30 ++++++++++----------
>  drivers/gpu/drm/drm_mipi_dbi.c               |  2 +-
>  drivers/gpu/drm/drm_prime.c                  |  8 +-----
>  include/drm/drm_gem.h                        | 14 +++++++++
>  include/drm/drm_gem_shmem_helper.h           |  2 +-
>  9 files changed, 41 insertions(+), 37 deletions(-)
>