Update perf_event_open support to Linux 3.13-rc3
This mostly just enables Haswell PERF_SAMPLE_TRANSACTION
support.
Signed-off-by: Vince Weaver <vincent.weaver@xxxxxxxxx>
diff --git a/include/perf_event.h b/include/perf_event.h
index 40a1fb8..e1802d6 100644
--- a/include/perf_event.h
+++ b/include/perf_event.h
@@ -136,8 +136,9 @@ enum perf_event_sample_format {
PERF_SAMPLE_WEIGHT = 1U << 14,
PERF_SAMPLE_DATA_SRC = 1U << 15,
PERF_SAMPLE_IDENTIFIER = 1U << 16,
+ PERF_SAMPLE_TRANSACTION = 1U << 17,
- PERF_SAMPLE_MAX = 1U << 17, /* non-ABI */
+ PERF_SAMPLE_MAX = 1U << 18, /* non-ABI */
};
/*
@@ -181,6 +182,28 @@ enum perf_sample_regs_abi {
};
/*
+ * Values for the memory transaction event qualifier, mostly for
+ * abort events. Multiple bits can be set.
+ */
+enum {
+ PERF_TXN_ELISION = (1 << 0), /* From elision */
+ PERF_TXN_TRANSACTION = (1 << 1), /* From transaction */
+ PERF_TXN_SYNC = (1 << 2), /* Instruction is related */
+ PERF_TXN_ASYNC = (1 << 3), /* Instruction not related */
+ PERF_TXN_RETRY = (1 << 4), /* Retry possible */
+ PERF_TXN_CONFLICT = (1 << 5), /* Conflict abort */
+ PERF_TXN_CAPACITY_WRITE = (1 << 6), /* Capacity write abort */
+ PERF_TXN_CAPACITY_READ = (1 << 7), /* Capacity read abort */
+
+ PERF_TXN_MAX = (1 << 8), /* non-ABI */
+
+ /* bits 32..63 are reserved for the abort code */
+
+ PERF_TXN_ABORT_MASK = (0xffffffffULL << 32),
+ PERF_TXN_ABORT_SHIFT = 32,
+};
+
+/*
* The format of the data returned by read() on a perf event fd,
* as specified by attr.read_format:
*
@@ -380,10 +403,13 @@ struct perf_event_mmap_page {
union {
__u64 capabilities;
struct {
- __u64 cap_usr_time : 1,
- cap_usr_rdpmc : 1,
- cap_usr_time_zero : 1,
- cap_____res : 61;
+ __u64 cap_bit0 : 1, /* Always 0, deprecated, see commit 860f085b74e9 */
+ cap_bit0_is_deprecated : 1, /* Always 1, signals that bit 0 is zero */
+
+ cap_user_rdpmc : 1, /* The RDPMC instruction can be used to read counts */
+ cap_user_time : 1, /* The time_* fields are used */
+ cap_user_time_zero : 1, /* The time_zero field is used */
+ cap_____res : 59;
};
};
@@ -442,23 +468,26 @@ struct perf_event_mmap_page {
* ((rem * time_mult) >> time_shift);
*/
__u64 time_zero;
+ __u32 size; /* Header size up to __reserved[] fields. */
/*
* Hole for extension of the self monitor capabilities
*/
- __u64 __reserved[119]; /* align to 1k */
+ __u8 __reserved[118*8+4]; /* align to 1k. */
/*
* Control data for the mmap() data buffer.
*
- * User-space reading the @data_head value should issue an rmb(), on
- * SMP capable platforms, after reading this value -- see
- * perf_event_wakeup().
+ * User-space reading the @data_head value should issue an smp_rmb(),
+ * after reading this value.
*
* When the mapping is PROT_WRITE the @data_tail value should be
- * written by userspace to reflect the last read data. In this case
- * the kernel will not over-write unread data.
+ * written by userspace to reflect the last read data, after issueing
+ * an smp_mb() to separate the data read from the ->data_tail store.
+ * In this case the kernel will not over-write unread data.
+ *
+ * See perf_output_put_handle() for the data ordering.
*/
__u64 data_head; /* head in the data section */
__u64 data_tail; /* user-space written tail */
@@ -528,6 +557,7 @@ enum perf_event_type {
* u64 len;
* u64 pgoff;
* char filename[];
+ * struct sample_id sample_id;
* };
*/
PERF_RECORD_MMAP = 1,
diff --git a/syscalls/perf_event_open.c b/syscalls/perf_event_open.c
index 516172a..f7d6187 100644
--- a/syscalls/perf_event_open.c
+++ b/syscalls/perf_event_open.c
@@ -863,6 +863,8 @@ static long long random_sample_type(void)
sample_type |= PERF_SAMPLE_DATA_SRC;
if (rand_bool())
sample_type |= PERF_SAMPLE_IDENTIFIER;
+ if (rand_bool())
+ sample_type |= PERF_SAMPLE_TRANSACTION;
return sample_type;
}
--
To unsubscribe from this list: send the line "unsubscribe trinity" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
