[PATCH 0/4] drm: Restrict GEM's pin/unpin to PRIME

Thomas Zimmermann tzimmermann at suse.de
Fri Apr 4 13:23:30 UTC 2025


The pin and unpin callbacks in struct drm_gem_object_funcs are
for PRIME exported dma-bufs. Remove the pin calls in the client
code, drop the unnecessary pin callbacks from gem-vram and inline
drm_gem_pin() into the only remaining caller. Do the equivalent
for drm_gem_unpin().

AFAICT the long-term plan is to switch to dynamic dma-buf imports
and remove pin/unpin from GEM object functions.

Thomas Zimmermann (4):
  drm/client: Do not pin in drm_client_buffer_vmap()
  drm/gem-vram: Do not set pin and unpin callbacks
  drm/gem-vram: Un-export pin helpers
  drm/gem: Inline drm_gem_pin() into PRIME helpers

 drivers/gpu/drm/drm_client.c          | 22 ++------
 drivers/gpu/drm/drm_gem.c             | 32 -----------
 drivers/gpu/drm/drm_gem_vram_helper.c | 79 +--------------------------
 drivers/gpu/drm/drm_internal.h        |  4 --
 drivers/gpu/drm/drm_prime.c           | 22 +++++++-
 include/drm/drm_gem.h                 |  3 +-
 include/drm/drm_gem_vram_helper.h     |  2 -
 7 files changed, 29 insertions(+), 135 deletions(-)

-- 
2.49.0



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