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| author |   Cyril Bur <cyrilbur@gmail.com> | 2016-09-23 16:18:18 +1000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2016-10-04 20:10:14 +1100 |
| commit | 8e03bd4e70b6a4c70ac3ea6766b2bc06a8ad91a3 (patch) | |
| tree | 9bff224a04565625b7847cf1a2a1b026e909303e /tools/testing/selftests/powerpc/tm/tm.h | |
| parent | selftests/powerpc: Allow tests to extend their kill timeout (diff) | |
| download | linux-dev-8e03bd4e70b6a4c70ac3ea6766b2bc06a8ad91a3.tar.xz linux-dev-8e03bd4e70b6a4c70ac3ea6766b2bc06a8ad91a3.zip | |
selftests/powerpc: Add TM tcheck helpers in C
Signed-off-by: Cyril Bur <cyrilbur@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to '')
| -rw-r--r-- | tools/testing/selftests/powerpc/tm/tm.h | 27 |
1 files changed, 27 insertions, 0 deletions
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 */ |