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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2012-07-31 13:03:04 +0400 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2012-09-26 17:45:02 +0400 |
| commit | d35339a42dd1f53b0bb86cf75418a9b7cf5f0f30 (patch) | |
| tree | 7f6447709e0bdb601687c40c42e09c3ca6deff8c /arch/s390/include/asm/processor.h | |
| parent | e4b8b3f33fcaa0ed6e6b5482a606091d8cd20beb (diff) | |
| download | linux-d35339a42dd1f53b0bb86cf75418a9b7cf5f0f30.tar.xz | |
s390: add support for transactional memory
Allow user-space processes to use transactional execution (TX).
If the TX facility is available user space programs can use
transactions for fine-grained serialization based on the data
objects that are referenced during a transaction. This is
useful for lockless data structures and speculative compiler
optimizations.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/processor.h')
| -rw-r--r-- | arch/s390/include/asm/processor.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h index 0fff583d2c7c..46fe1fbf91c5 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -76,14 +76,20 @@ struct thread_struct { unsigned long gmap_addr; /* address of last gmap fault. */ struct per_regs per_user; /* User specified PER registers */ struct per_event per_event; /* Cause of the last PER trap */ + unsigned long per_flags; /* Flags to control debug behavior */ /* pfault_wait is used to block the process on a pfault event */ unsigned long pfault_wait; struct list_head list; /* cpu runtime instrumentation */ struct runtime_instr_cb *ri_cb; int ri_signum; +#ifdef CONFIG_64BIT + unsigned char trap_tdb[256]; /* Transaction abort diagnose block */ +#endif }; +#define PER_FLAG_NO_TE 1UL /* Flag to disable transactions. */ + typedef struct thread_struct thread_struct; /* |