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UPSTREAM: include: trace: Add SCMI header with trace events

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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: Jim Quinlan <james.quinlan@broadcom.com>
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
(cherry picked from commit 257d0e20ec)

Change-Id: I4349c71a5c2efdb2be06fef4e82750facc81d55a
Signed-off-by: XiaoDong Huang <derrick.huang@rock-chips.com>
This commit is contained in:
Lukasz Luba
2019-12-17 13:43:44 +00:00
committed by Tao Huang
parent b430ea6fd1
commit c373c1f0ae
2 changed files with 91 additions and 0 deletions
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1
MAINTAINERS
View File

@@ -14153,6 +14153,7 @@ F: drivers/cpufreq/sc[mp]i-cpufreq.c
F: drivers/firmware/arm_scpi.c
F: drivers/firmware/arm_scmi/
F: include/linux/sc[mp]i_protocol.h
F: include/trace/events/scmi.h
SYSTEM RESET/SHUTDOWN DRIVERS
M: Sebastian Reichel <sre@kernel.org>

90
include/trace/events/scmi.h Normal file
View File

@@ -0,0 +1,90 @@
/* 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>