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-rw-r--r--include/uapi/linux/perf_event.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
index 39c6a250dd1b..4461f380425b 100644
--- a/include/uapi/linux/perf_event.h
+++ b/include/uapi/linux/perf_event.h
@@ -204,6 +204,8 @@ enum perf_branch_sample_type_shift {
PERF_SAMPLE_BRANCH_PRIV_SAVE_SHIFT = 18, /* save privilege mode */
+ PERF_SAMPLE_BRANCH_COUNTERS_SHIFT = 19, /* save occurrences of events on a branch */
+
PERF_SAMPLE_BRANCH_MAX_SHIFT /* non-ABI */
};
@@ -235,6 +237,8 @@ enum perf_branch_sample_type {
PERF_SAMPLE_BRANCH_PRIV_SAVE = 1U << PERF_SAMPLE_BRANCH_PRIV_SAVE_SHIFT,
+ PERF_SAMPLE_BRANCH_COUNTERS = 1U << PERF_SAMPLE_BRANCH_COUNTERS_SHIFT,
+
PERF_SAMPLE_BRANCH_MAX = 1U << PERF_SAMPLE_BRANCH_MAX_SHIFT,
};
@@ -982,6 +986,12 @@ enum perf_event_type {
* { u64 nr;
* { u64 hw_idx; } && PERF_SAMPLE_BRANCH_HW_INDEX
* { u64 from, to, flags } lbr[nr];
+ * #
+ * # The format of the counters is decided by the
+ * # "branch_counter_nr" and "branch_counter_width",
+ * # which are defined in the ABI.
+ * #
+ * { u64 counters; } cntr[nr] && PERF_SAMPLE_BRANCH_COUNTERS
* } && PERF_SAMPLE_BRANCH_STACK
*
* { u64 abi; # enum perf_sample_regs_abi