Commit 257d0e20 authored by Lukasz Luba's avatar Lukasz Luba Committed by Sudeep Holla
Browse files

include: trace: Add SCMI header with trace events 



Adding trace events would help to measure the speed of the communication
channel. It can be also potentially used helpful during investigation
of some issues platforms which use different transport layer.

Update also MAINTAINERS file with information that the new trace events
are maintained.

Suggested-by: default avatarJim Quinlan <james.quinlan@broadcom.com>
Signed-off-by: default avatarLukasz Luba <lukasz.luba@arm.com>
Signed-off-by: default avatarSudeep Holla <sudeep.holla@arm.com>
parent 34ce3c5e

MAINTAINERS

+1 −0
Original line number Diff line number Diff line
@@ -15965,6 +15965,7 @@ F: drivers/firmware/arm_scpi.c 
F:	drivers/firmware/arm_scmi/

F:	drivers/reset/reset-scmi.c

F:	include/linux/sc[mp]i_protocol.h

F:	include/trace/events/scmi.h









SYSTEM RESET/SHUTDOWN DRIVERS









M:	Sebastian Reichel <sre@kernel.org>


































include/trace/events/scmi.h
0 → 100644



+90
−0






























Original line number
Diff line number
Diff line









/* SPDX-License-Identifier: GPL-2.0 */









#undef TRACE_SYSTEM









#define TRACE_SYSTEM scmi



















#if !defined(_TRACE_SCMI_H) || defined(TRACE_HEADER_MULTI_READ)









#define _TRACE_SCMI_H



















#include <linux/tracepoint.h>



















TRACE_EVENT(scmi_xfer_begin,









	TP_PROTO(int transfer_id, u8 msg_id, u8 protocol_id, u16 seq,









		 bool poll),









	TP_ARGS(transfer_id, msg_id, protocol_id, seq, poll),



















	TP_STRUCT__entry(









		__field(int, transfer_id)









		__field(u8, msg_id)









		__field(u8, protocol_id)









		__field(u16, seq)









		__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->poll = poll;









	),



















	TP_printk("transfer_id=%d msg_id=%u protocol_id=%u seq=%u poll=%u",









		__entry->transfer_id, __entry->msg_id, __entry->protocol_id,









		__entry->seq, __entry->poll)









);



















TRACE_EVENT(scmi_xfer_end,









	TP_PROTO(int transfer_id, u8 msg_id, u8 protocol_id, u16 seq,









		 u32 status),









	TP_ARGS(transfer_id, msg_id, protocol_id, seq, status),



















	TP_STRUCT__entry(









		__field(int, transfer_id)









		__field(u8, msg_id)









		__field(u8, protocol_id)









		__field(u16, seq)









		__field(u32, status)









	),



















	TP_fast_assign(









		__entry->transfer_id = transfer_id;









		__entry->msg_id = msg_id;









		__entry->protocol_id = protocol_id;









		__entry->seq = seq;









		__entry->status = status;









	),



















	TP_printk("transfer_id=%d msg_id=%u protocol_id=%u seq=%u status=%u",









		__entry->transfer_id, __entry->msg_id, __entry->protocol_id,









		__entry->seq, __entry->status)









);



















TRACE_EVENT(scmi_rx_done,









	TP_PROTO(int transfer_id, u8 msg_id, u8 protocol_id, u16 seq,









		 u8 msg_type),









	TP_ARGS(transfer_id, msg_id, protocol_id, seq, msg_type),



















	TP_STRUCT__entry(









		__field(int, transfer_id)









		__field(u8, msg_id)









		__field(u8, protocol_id)









		__field(u16, seq)









		__field(u8, msg_type)









	),



















	TP_fast_assign(









		__entry->transfer_id = transfer_id;









		__entry->msg_id = msg_id;









		__entry->protocol_id = protocol_id;









		__entry->seq = seq;









		__entry->msg_type = msg_type;









	),



















	TP_printk("transfer_id=%d msg_id=%u protocol_id=%u seq=%u msg_type=%u",









		__entry->transfer_id, __entry->msg_id, __entry->protocol_id,









		__entry->seq, __entry->msg_type)









);









#endif /* _TRACE_SCMI_H */



















/* This part must be outside protection */









#include <trace/define_trace.h>





























































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