From 8e03bd4e70b6a4c70ac3ea6766b2bc06a8ad91a3 Mon Sep 17 00:00:00 2001 From: Cyril Bur Date: Fri, 23 Sep 2016 16:18:18 +1000 Subject: selftests/powerpc: Add TM tcheck helpers in C Signed-off-by: Cyril Bur Signed-off-by: Michael Ellerman --- tools/testing/selftests/powerpc/tm/tm.h | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) (limited to 'tools/testing') diff --git a/tools/testing/selftests/powerpc/tm/tm.h b/tools/testing/selftests/powerpc/tm/tm.h index 60318bad7d7a..2c8da74304e7 100644 --- a/tools/testing/selftests/powerpc/tm/tm.h +++ b/tools/testing/selftests/powerpc/tm/tm.h @@ -52,4 +52,31 @@ 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 */ -- cgit v1.2.3-59-g8ed1b