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-rw-r--r--include/uapi/drm/panthor_drm.h8
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;
/**