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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2012-07-31 13:03:04 +0400
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2012-09-26 17:45:02 +0400
commitd35339a42dd1f53b0bb86cf75418a9b7cf5f0f30 (patch)
tree7f6447709e0bdb601687c40c42e09c3ca6deff8c /arch/s390/include/asm/ptrace.h
parente4b8b3f33fcaa0ed6e6b5482a606091d8cd20beb (diff)
downloadlinux-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/ptrace.h')
-rw-r--r--arch/s390/include/asm/ptrace.h8
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/s390/include/asm/ptrace.h b/arch/s390/include/asm/ptrace.h
index 5c32bae6b760..ce20a53afe91 100644
--- a/arch/s390/include/asm/ptrace.h
+++ b/arch/s390/include/asm/ptrace.h
@@ -361,17 +361,19 @@ struct per_struct_kernel {
unsigned char access_id; /* PER trap access identification */
};
-#define PER_EVENT_MASK 0xE9000000UL
+#define PER_EVENT_MASK 0xEB000000UL
#define PER_EVENT_BRANCH 0x80000000UL
#define PER_EVENT_IFETCH 0x40000000UL
#define PER_EVENT_STORE 0x20000000UL
#define PER_EVENT_STORE_REAL 0x08000000UL
+#define PER_EVENT_TRANSACTION_END 0x02000000UL
#define PER_EVENT_NULLIFICATION 0x01000000UL
-#define PER_CONTROL_MASK 0x00a00000UL
+#define PER_CONTROL_MASK 0x00e00000UL
#define PER_CONTROL_BRANCH_ADDRESS 0x00800000UL
+#define PER_CONTROL_SUSPENSION 0x00400000UL
#define PER_CONTROL_ALTERATION 0x00200000UL
#endif
@@ -485,6 +487,8 @@ typedef struct
#define PTRACE_GET_LAST_BREAK 0x5006
#define PTRACE_PEEK_SYSTEM_CALL 0x5007
#define PTRACE_POKE_SYSTEM_CALL 0x5008
+#define PTRACE_ENABLE_TE 0x5009
+#define PTRACE_DISABLE_TE 0x5010
/*
* PT_PROT definition is loosely based on hppa bsd definition in