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| author | Boris Brezillon <boris.brezillon@collabora.com> | 2024-05-02 19:51:55 +0300 |
|---|---|---|
| committer | Boris Brezillon <boris.brezillon@collabora.com> | 2024-05-13 10:49:15 +0300 |
| commit | e3193f0fbd6d83510ff6879ac248f42a7c0fefe7 (patch) | |
| tree | f351e0ddd2a5671c1761fd055a56c05f46549c75 /drivers/gpu | |
| parent | d2143297579f12ea22479d403d955819838e7e67 (diff) | |
| download | linux-e3193f0fbd6d83510ff6879ac248f42a7c0fefe7.tar.xz | |
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 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/panthor/panthor_heap.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/panthor/panthor_heap.c b/drivers/gpu/drm/panthor/panthor_heap.c index c3c0ba744937..3be86ec383d6 100644 --- a/drivers/gpu/drm/panthor/panthor_heap.c +++ b/drivers/gpu/drm/panthor/panthor_heap.c @@ -281,6 +281,9 @@ int panthor_heap_create(struct panthor_heap_pool *pool, if (initial_chunk_count == 0) return -EINVAL; + if (initial_chunk_count > max_chunks) + return -EINVAL; + if (hweight32(chunk_size) != 1 || chunk_size < SZ_256K || chunk_size > SZ_2M) return -EINVAL; |