To allow for more extensible, device specific, perf record types this adds a generic PERF_RECORD_DEVICE type that can be used by device drivers. Driver developers can then document some driver-specific header to further detail such a record's type.
Signed-off-by: Robert Bragg robert@sixbynine.org --- include/uapi/linux/perf_event.h | 13 +++++++++++++ 1 file changed, 13 insertions(+)
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h index a25967b..688e192 100644 --- a/include/uapi/linux/perf_event.h +++ b/include/uapi/linux/perf_event.h @@ -726,6 +726,19 @@ enum perf_event_type { */ PERF_RECORD_MMAP2 = 10,
+ /* + * The DEVICE record implies some device driver specific record that + * will have some further mechanism for describing the contents of + * the record (i.e. some driver specific event header). + * + * struct { + * struct perf_event_header header; + * + * struct DEVICE_EVENT_HEADER device_header; + * }; + */ + PERF_RECORD_DEVICE = 11, + PERF_RECORD_MAX, /* non-ABI */ };