include: trace: Add new scmi_xfer_response_wait event

Having a new step to trace SCMI stack while it waits for synchronous
responses is useful to analyze system performance when changing waiting
mode between polling and interrupt completion.

Link: https://lore.kernel.org/r/20211129191156.29322-5-cristian.marussi@arm.com
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

diff --git a/include/trace/events/scmi.h b/include/trace/events/scmi.h
index f3a4b4d..cee4b2b 100644 (file)
--- a/include/trace/events/scmi.h
+++ b/include/trace/events/scmi.h
@@ -33,6 +33,34 @@ TRACE_EVENT(scmi_xfer_begin,
                __entry->seq, __entry->poll)
 );
 
+TRACE_EVENT(scmi_xfer_response_wait,
+       TP_PROTO(int transfer_id, u8 msg_id, u8 protocol_id, u16 seq,
+                u32 timeout, bool poll),
+       TP_ARGS(transfer_id, msg_id, protocol_id, seq, timeout, poll),
+
+       TP_STRUCT__entry(
+               __field(int, transfer_id)
+               __field(u8, msg_id)
+               __field(u8, protocol_id)
+               __field(u16, seq)
+               __field(u32, timeout)
+               __field(bool, poll)
+       ),
+
+       TP_fast_assign(
+               __entry->transfer_id = transfer_id;
+               __entry->msg_id = msg_id;
+               __entry->protocol_id = protocol_id;
+               __entry->seq = seq;
+               __entry->timeout = timeout;
+               __entry->poll = poll;
+       ),
+
+       TP_printk("transfer_id=%d msg_id=%u protocol_id=%u seq=%u tmo_ms=%u poll=%u",
+               __entry->transfer_id, __entry->msg_id, __entry->protocol_id,
+               __entry->seq, __entry->timeout, __entry->poll)
+);
+
 TRACE_EVENT(scmi_xfer_end,
        TP_PROTO(int transfer_id, u8 msg_id, u8 protocol_id, u16 seq,
                 int status),