diff --git a/src/intel/common/gen_l3_config.c b/src/intel/common/gen_l3_config.c
index 150ec261a5f..21ee5ca5dca 100644
--- a/src/intel/common/gen_l3_config.c
+++ b/src/intel/common/gen_l3_config.c
@@ -271,12 +271,11 @@ gen_get_l3_config(const struct gen_device_info *devinfo,
 static unsigned
 get_l3_way_size(const struct gen_device_info *devinfo)
 {
+   const unsigned way_size_per_bank =
+      devinfo->gen >= 9 && devinfo->l3_banks == 1 ? 4 : 2;
+
    assert(devinfo->l3_banks);
-
-   if (devinfo->is_broxton)
-      return 4;
-
-   return 2 * devinfo->l3_banks;
+   return way_size_per_bank * devinfo->l3_banks;
 }
 
 /**