This series improves the GPU buddy allocator by adding missing documentation and cleaning up internal helpers.
It adds kernel-doc for the allocator structures and flags, covering gpu_buddy, gpu_buddy_block, and the allocation flags (RANGE, TOPDOWN, CONTIGUOUS, CLEAR, TRIM_DISABLE) to make the allocator’s design and usage clearer for readers and contributors. It also reduces the header surface by moving internal helpers from gpu_buddy.h into buddy.c as static functions, since they have no external users, and removes gpu_get_buddy(), an unused exported wrapper around the internal __get_buddy() helper. This clarifies the intended API and avoids exporting unused symbols. No functional changes. v2: - Rebased after DRM buddy allocator moved to drivers/gpu/ - Keep gpu_buddy_block_is_free() in header since it's now used by drm_buddy.c - Corrected GPU_BUDDY_CLEAR_TREE and GPU_BUDDY_DIRTY_TREE index values (Arun) - Updated commit message and cover letter to reflect changes Cc: Christian König <[email protected]> Cc: Arunpravin Paneer Selvam <[email protected]> Suggested-by: Matthew Auld <[email protected]> Sanjay Yadav (2): drm/buddy: Add kernel-doc for allocator structures and flags drm/buddy: Move internal helpers to buddy.c drivers/gpu/buddy.c | 35 ++++----- include/linux/gpu_buddy.h | 147 +++++++++++++++++++++++++++----------- 2 files changed, 122 insertions(+), 60 deletions(-) -- 2.52.0
