diff --git a/tools/perf/tests/bp_signal.c b/tools/perf/tests/bp_signal.c
index 68daa289e94c84f2f6dc6968c236bf5fce683c46..aba095489193bb6e224ff11f3f2ee03968df8711 100644
--- a/tools/perf/tests/bp_signal.c
+++ b/tools/perf/tests/bp_signal.c
@@ -4,6 +4,12 @@
  * (git://github.com/deater/perf_event_tests)
  */
 
+/*
+ * Powerpc needs __SANE_USERSPACE_TYPES__ before <linux/types.h> to select
+ * 'int-ll64.h' and avoid compile warnings when printing __u64 with %llu.
+ */
+#define __SANE_USERSPACE_TYPES__
+
 #include <stdlib.h>
 #include <stdio.h>
 #include <unistd.h>
diff --git a/tools/perf/tests/bp_signal_overflow.c b/tools/perf/tests/bp_signal_overflow.c
index fe7ed28815f8910e3430899dd0cbbcf0bc440020..44ac82179708b50d6ab559cb9258c8334ab70fff 100644
--- a/tools/perf/tests/bp_signal_overflow.c
+++ b/tools/perf/tests/bp_signal_overflow.c
@@ -3,6 +3,12 @@
  * perf_event_tests (git://github.com/deater/perf_event_tests)
  */
 
+/*
+ * Powerpc needs __SANE_USERSPACE_TYPES__ before <linux/types.h> to select
+ * 'int-ll64.h' and avoid compile warnings when printing __u64 with %llu.
+ */
+#define __SANE_USERSPACE_TYPES__
+
 #include <stdlib.h>
 #include <stdio.h>
 #include <unistd.h>