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| author | Boris Brezillon <boris.brezillon@collabora.com> | 2024-05-02 18:51:55 +0200 |
|---|---|---|
| committer | Boris Brezillon <boris.brezillon@collabora.com> | 2024-05-13 09:49:15 +0200 |
| commit | e3193f0fbd6d83510ff6879ac248f42a7c0fefe7 (patch) | |
| tree | f351e0ddd2a5671c1761fd055a56c05f46549c75 /include | |
| parent | drm/panthor: Fix tiler OOM handling to allow incremental rendering (diff) | |
| download | linux-e3193f0fbd6d83510ff6879ac248f42a7c0fefe7.tar.xz linux-e3193f0fbd6d83510ff6879ac248f42a7c0fefe7.zip | |
drm/panthor: Make sure the tiler initial/max chunks are consistent
It doesn't make sense to have a maximum number of chunks smaller than
the initial number of chunks attached to the context.
Fix the uAPI header to reflect the new constraint, and mention the
undocumented "initial_chunk_count > 0" constraint while at it.
v3:
- Add R-b
v2:
- Fix the check
Fixes: 9cca48fa4f89 ("drm/panthor: Add the heap logical block")
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240502165158.1458959-3-boris.brezillon@collabora.com
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/drm/panthor_drm.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/include/uapi/drm/panthor_drm.h b/include/uapi/drm/panthor_drm.h index dadb05ab1235..5db80a0682d5 100644 --- a/include/uapi/drm/panthor_drm.h +++ b/include/uapi/drm/panthor_drm.h @@ -895,13 +895,17 @@ struct drm_panthor_tiler_heap_create { /** @vm_id: VM ID the tiler heap should be mapped to */ __u32 vm_id; - /** @initial_chunk_count: Initial number of chunks to allocate. */ + /** @initial_chunk_count: Initial number of chunks to allocate. Must be at least one. */ __u32 initial_chunk_count; /** @chunk_size: Chunk size. Must be a power of two at least 256KB large. */ __u32 chunk_size; - /** @max_chunks: Maximum number of chunks that can be allocated. */ + /** + * @max_chunks: Maximum number of chunks that can be allocated. + * + * Must be at least @initial_chunk_count. + */ __u32 max_chunks; /** |