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linux-stable/include/trace/events/scmi.h

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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: Jim Quinlan <james.quinlan@broadcom.com> Signed-off-by: Lukasz Luba <lukasz.luba@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2019-12-17 13:43:44 +00:00
/* 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,
firmware: arm_scmi: Use signed integer to report transfer status Currently the trace event 'scmi_xfer_end' reports the status of the transfer using the unsigned status field read from the firmware which may not be easy to interpret. It may also miss to emit any timeouts that happen in the driver resulting in emitting garbage in the status field in those scenarios. Let us use signed integer so that error values are emitted out after they are mapped from firmware error formats to standard linux error codes. While at this, also include any timeouts in the driver itself. Link: https://lore.kernel.org/r/20200609134503.55860-1-sudeep.holla@arm.com Cc: Jim Quinlan <james.quinlan@broadcom.com> Cc: Lukasz Luba <lukasz.luba@arm.com> Reviewed-by: Lukasz Luba <lukasz.luba@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2020-06-09 13:45:03 +00:00
int status),
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: Jim Quinlan <james.quinlan@broadcom.com> Signed-off-by: Lukasz Luba <lukasz.luba@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2019-12-17 13:43:44 +00:00
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)
firmware: arm_scmi: Use signed integer to report transfer status Currently the trace event 'scmi_xfer_end' reports the status of the transfer using the unsigned status field read from the firmware which may not be easy to interpret. It may also miss to emit any timeouts that happen in the driver resulting in emitting garbage in the status field in those scenarios. Let us use signed integer so that error values are emitted out after they are mapped from firmware error formats to standard linux error codes. While at this, also include any timeouts in the driver itself. Link: https://lore.kernel.org/r/20200609134503.55860-1-sudeep.holla@arm.com Cc: Jim Quinlan <james.quinlan@broadcom.com> Cc: Lukasz Luba <lukasz.luba@arm.com> Reviewed-by: Lukasz Luba <lukasz.luba@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2020-06-09 13:45:03 +00:00
__field(int, status)
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: Jim Quinlan <james.quinlan@broadcom.com> Signed-off-by: Lukasz Luba <lukasz.luba@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2019-12-17 13:43:44 +00:00
),
TP_fast_assign(
__entry->transfer_id = transfer_id;
__entry->msg_id = msg_id;
__entry->protocol_id = protocol_id;
__entry->seq = seq;
__entry->status = status;
),
firmware: arm_scmi: Use signed integer to report transfer status Currently the trace event 'scmi_xfer_end' reports the status of the transfer using the unsigned status field read from the firmware which may not be easy to interpret. It may also miss to emit any timeouts that happen in the driver resulting in emitting garbage in the status field in those scenarios. Let us use signed integer so that error values are emitted out after they are mapped from firmware error formats to standard linux error codes. While at this, also include any timeouts in the driver itself. Link: https://lore.kernel.org/r/20200609134503.55860-1-sudeep.holla@arm.com Cc: Jim Quinlan <james.quinlan@broadcom.com> Cc: Lukasz Luba <lukasz.luba@arm.com> Reviewed-by: Lukasz Luba <lukasz.luba@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2020-06-09 13:45:03 +00:00
TP_printk("transfer_id=%d msg_id=%u protocol_id=%u seq=%u status=%d",
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: Jim Quinlan <james.quinlan@broadcom.com> Signed-off-by: Lukasz Luba <lukasz.luba@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2019-12-17 13:43:44 +00:00
__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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