1 files changed, 49 insertions, 1 deletions
diff --git a/tools/testing/selftests/powerpc/tm/tm.h b/tools/testing/selftests/powerpc/tm/tm.h
index 24144b25772c..2c8da74304e7 100644
--- a/tools/testing/selftests/powerpc/tm/tm.h
+++ b/tools/testing/selftests/powerpc/tm/tm.h
@@ -6,8 +6,9 @@
 #ifndef _SELFTESTS_POWERPC_TM_TM_H
 #define _SELFTESTS_POWERPC_TM_TM_H
 
-#include <stdbool.h>
+#include <asm/tm.h>
 #include <asm/cputable.h>
+#include <stdbool.h>
 
 #include "../utils.h"
 
@@ -31,4 +32,51 @@ static inline bool have_htm_nosc(void)
 #endif
 }
 
+static inline long failure_code(void)
+{
+	return __builtin_get_texasru() >> 24;
+}
+
+static inline bool failure_is_persistent(void)
+{
+	return (failure_code() & TM_CAUSE_PERSISTENT) == TM_CAUSE_PERSISTENT;
+}
+
+static inline bool failure_is_syscall(void)
+{
+	return (failure_code() & TM_CAUSE_SYSCALL) == TM_CAUSE_SYSCALL;
+}
+
+static inline bool failure_is_nesting(void)
+{
+	return (__builtin_get_texasru() & 0x400000);
+}
+
+static inline int tcheck(void)
+{
+	long cr;
+	asm volatile ("tcheck 0" : "=r"(cr) : : "cr0");
+	return (cr >> 28) & 4;
+}
+
+static inline bool tcheck_doomed(void)
+{
+	return tcheck() & 8;
+}
+
+static inline bool tcheck_active(void)
+{
+	return tcheck() & 4;
+}
+
+static inline bool tcheck_suspended(void)
+{
+	return tcheck() & 2;
+}
+
+static inline bool tcheck_transactional(void)
+{
+	return tcheck() & 6;
+}
+
 #endif /* _SELFTESTS_POWERPC_TM_TM_H */