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-rw-r--r--src/intel/compiler/brw_fs_visitor.cpp8
1 files changed, 6 insertions, 2 deletions
diff --git a/src/intel/compiler/brw_fs_visitor.cpp b/src/intel/compiler/brw_fs_visitor.cpp
index 7b315693e4a..22e83f1adb9 100644
--- a/src/intel/compiler/brw_fs_visitor.cpp
+++ b/src/intel/compiler/brw_fs_visitor.cpp
@@ -548,9 +548,13 @@ fs_visitor::emit_fb_writes()
* XXX - Emit an extra single-source NULL RT-write marked LastRT in
* order to release the thread dependency without disabling
* SIMD32.
+ *
+ * The dual-source RT write messages may lead to hangs with SIMD16
+ * dispatch on ICL due some unknown reasons, see
+ * https://gitlab.freedesktop.org/mesa/mesa/-/issues/2183
*/
- limit_dispatch_width(16, "Dual source blending unsupported "
- "in SIMD32 mode.\n");
+ limit_dispatch_width(8, "Dual source blending unsupported "
+ "in SIMD16 and SIMD32 modes.\n");
}
}