[PATCH v5 08/14] perf: Add gtrace AUX buffer trace format type

[Mayuresh Chitale]

The gtrace PMU can host trace components of different architectures and
trace protocols, so the recorded AUX data needs to carry its format as
well. Define PERF_AUX_FLAG_GTRACE_FORMAT_ETRACE for the RISC-V E-trace
format which the perf tool can use to decode the payload.

Signed-off-by: Mayuresh Chitale <mayuresh.chitale@xxxxxxxxxxxxxxxx>
---
 include/uapi/linux/perf_event.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
index fd10aa8d697f..ca2d8614a780 100644
--- a/include/uapi/linux/perf_event.h
+++ b/include/uapi/linux/perf_event.h
@@ -1311,6 +1311,10 @@ enum perf_callchain_context {
 #define PERF_AUX_FLAG_CORESIGHT_FORMAT_CORESIGHT 0x0000 /* Default for backward compatibility */
 #define PERF_AUX_FLAG_CORESIGHT_FORMAT_RAW	 0x0100 /* Raw format of the source */
 
+/* gtrace PMU AUX buffer formats */
+#define PERF_AUX_FLAG_GTRACE_FORMAT_UNKNOWN	 0x0000
+#define PERF_AUX_FLAG_GTRACE_FORMAT_ETRACE	 0x0100 /* RISC-V E-trace format */
+
 #define PERF_FLAG_FD_NO_GROUP			(1UL << 0)
 #define PERF_FLAG_FD_OUTPUT			(1UL << 1)
 #define PERF_FLAG_PID_CGROUP			(1UL << 2) /* pid=cgroup ID, per-CPU mode only */
-- 
2.43.0