Arunpravin Paneer Selvam d507ae0dc8 drm/buddy: Add start address support to trim function
- Add a new start parameter in trim function to specify exact
  address from where to start the trimming. This would help us
  in situations like if drivers would like to do address alignment
  for specific requirements.

- Add a new flag DRM_BUDDY_TRIM_DISABLE. Drivers can use this
  flag to disable the allocator trimming part. This patch enables
  the drivers control trimming and they can do it themselves
  based on the application requirements.

v1:(Matthew)
  - check new_start alignment with min chunk_size
  - use range_overflows()

Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit db65eb46de135338d6177f8853e0fd208f19d63e)
2024-08-07 18:19:00 -04:00
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