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| author |   Cyril Bur <cyrilbur@gmail.com> | 2016-06-29 21:41:51 +1000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2016-07-26 14:28:22 +1000 |
| commit | a431b946db581d6a121d035a887d370cdc4b8dea (patch) | |
| tree | b0b6a6c2049643a5920b8f2b3f63d9a3eecdb64a /tools/testing/selftests/powerpc/tm/tm.h | |
| parent | powerpc: Improve comment explaining why we modify VRSAVE (diff) | |
| download | linux-dev-a431b946db581d6a121d035a887d370cdc4b8dea.tar.xz linux-dev-a431b946db581d6a121d035a887d370cdc4b8dea.zip | |
selftests/powerpc: exec() with suspended transaction
Perform an exec() class syscall with a suspended transaction.
This is a test for the bug we fixed in 8e96a87c5431 ("powerpc/tm: Always
reclaim in start_thread() for exec() class syscalls").
Signed-off-by: Cyril Bur <cyrilbur@gmail.com>
[mpe: Fix build errors, use a single binary for the test]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to '')
| -rw-r--r-- | tools/testing/selftests/powerpc/tm/tm.h | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/tools/testing/selftests/powerpc/tm/tm.h b/tools/testing/selftests/powerpc/tm/tm.h index 24144b25772c..60318bad7d7a 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 +32,24 @@ 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); +} + #endif /* _SELFTESTS_POWERPC_TM_TM_H */ |