diff --git a/src/panfrost/lib/pan_props.c b/src/panfrost/lib/pan_props.c
index 056bd48d4a2..26babd143a1 100644
--- a/src/panfrost/lib/pan_props.c
+++ b/src/panfrost/lib/pan_props.c
@@ -17,6 +17,13 @@ pan_query_l2_slices(const struct pan_kmod_dev_props *props)
    return ((props->mem_features >> 8) & 0xF) + 1;
 }
 
+unsigned
+pan_query_bus_width(const struct pan_kmod_dev_props *props)
+{
+   /* BUS_WIDTH is L2_FEATURES[31:24] log2 */
+   return 1 << ((props->l2_features >> 24) & 0xF);
+}
+
 struct pan_tiler_features
 pan_query_tiler_features(const struct pan_kmod_dev_props *props)
 {
diff --git a/src/panfrost/lib/pan_props.h b/src/panfrost/lib/pan_props.h
index 19d3b749735..cebf5616028 100644
--- a/src/panfrost/lib/pan_props.h
+++ b/src/panfrost/lib/pan_props.h
@@ -21,6 +21,8 @@ struct pan_kmod_vm;
 
 unsigned pan_query_l2_slices(const struct pan_kmod_dev_props *props);
 
+unsigned pan_query_bus_width(const struct pan_kmod_dev_props *props);
+
 struct pan_tiler_features
 pan_query_tiler_features(const struct pan_kmod_dev_props *props);