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-rw-r--r--src/cpu/smt.hh2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/cpu/smt.hh b/src/cpu/smt.hh
index d90a1833a..e0993fc2e 100644
--- a/src/cpu/smt.hh
+++ b/src/cpu/smt.hh
@@ -36,6 +36,8 @@
#ifndef __SMT_HH__
#define __SMT_HH__
+#include "base/types.hh"
+
#ifndef SMT_MAX_THREADS
/** The number of TPUs in any processor. */
#define SMT_MAX_THREADS 4