mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-08-05 16:54:27 +00:00
f8e656382b
Enhance the existing SCMI transfer tracepoints by including the current in-flight transfer count in `scmi_xfer_begin` and `scmi_xfer_end`. Introduce a new helper `scmi_inflight_count()` to retrieve the active transfer count from the SCMI debug counters when debug is enabled. This trace data is useful for visualizing transfer activity over time and identifying congestion or unexpected behavior in SCMI messaging. Reviewed-by: Cristian Marussi <cristian.marussi@arm.com> Signed-off-by: Philip Radford <philip.radford@arm.com> Message-Id: <20250630105544.531723-4-philip.radford@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
186 lines
4.9 KiB
C
186 lines
4.9 KiB
C
/* 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>
|
|
|
|
#define TRACE_SCMI_MAX_TAG_LEN 6
|
|
|
|
TRACE_EVENT(scmi_fc_call,
|
|
TP_PROTO(u8 protocol_id, u8 msg_id, u32 res_id, u32 val1, u32 val2),
|
|
TP_ARGS(protocol_id, msg_id, res_id, val1, val2),
|
|
|
|
TP_STRUCT__entry(
|
|
__field(u8, protocol_id)
|
|
__field(u8, msg_id)
|
|
__field(u32, res_id)
|
|
__field(u32, val1)
|
|
__field(u32, val2)
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__entry->protocol_id = protocol_id;
|
|
__entry->msg_id = msg_id;
|
|
__entry->res_id = res_id;
|
|
__entry->val1 = val1;
|
|
__entry->val2 = val2;
|
|
),
|
|
|
|
TP_printk("pt=%02X msg_id=%02X res_id:%u vals=%u:%u",
|
|
__entry->protocol_id, __entry->msg_id,
|
|
__entry->res_id, __entry->val1, __entry->val2)
|
|
);
|
|
|
|
TRACE_EVENT(scmi_xfer_begin,
|
|
TP_PROTO(int transfer_id, u8 msg_id, u8 protocol_id, u16 seq,
|
|
bool poll, int inflight),
|
|
TP_ARGS(transfer_id, msg_id, protocol_id, seq, poll, inflight),
|
|
|
|
TP_STRUCT__entry(
|
|
__field(int, transfer_id)
|
|
__field(u8, msg_id)
|
|
__field(u8, protocol_id)
|
|
__field(u16, seq)
|
|
__field(bool, poll)
|
|
__field(int, inflight)
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__entry->transfer_id = transfer_id;
|
|
__entry->msg_id = msg_id;
|
|
__entry->protocol_id = protocol_id;
|
|
__entry->seq = seq;
|
|
__entry->poll = poll;
|
|
__entry->inflight = inflight;
|
|
),
|
|
|
|
TP_printk("pt=%02X msg_id=%02X seq=%04X transfer_id=%X poll=%u inflight=%d",
|
|
__entry->protocol_id, __entry->msg_id, __entry->seq,
|
|
__entry->transfer_id, __entry->poll, __entry->inflight)
|
|
);
|
|
|
|
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("pt=%02X msg_id=%02X seq=%04X transfer_id=%X tmo_ms=%u poll=%u",
|
|
__entry->protocol_id, __entry->msg_id, __entry->seq,
|
|
__entry->transfer_id, __entry->timeout, __entry->poll)
|
|
);
|
|
|
|
TRACE_EVENT(scmi_xfer_end,
|
|
TP_PROTO(int transfer_id, u8 msg_id, u8 protocol_id, u16 seq,
|
|
int status, int inflight),
|
|
TP_ARGS(transfer_id, msg_id, protocol_id, seq, status, inflight),
|
|
|
|
TP_STRUCT__entry(
|
|
__field(int, transfer_id)
|
|
__field(u8, msg_id)
|
|
__field(u8, protocol_id)
|
|
__field(u16, seq)
|
|
__field(int, status)
|
|
__field(int, inflight)
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__entry->transfer_id = transfer_id;
|
|
__entry->msg_id = msg_id;
|
|
__entry->protocol_id = protocol_id;
|
|
__entry->seq = seq;
|
|
__entry->status = status;
|
|
__entry->inflight = inflight;
|
|
),
|
|
|
|
TP_printk("pt=%02X msg_id=%02X seq=%04X transfer_id=%X s=%d inflight=%d",
|
|
__entry->protocol_id, __entry->msg_id, __entry->seq,
|
|
__entry->transfer_id, __entry->status, __entry->inflight)
|
|
);
|
|
|
|
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("pt=%02X msg_id=%02X seq=%04X transfer_id=%X msg_type=%u",
|
|
__entry->protocol_id, __entry->msg_id, __entry->seq,
|
|
__entry->transfer_id, __entry->msg_type)
|
|
);
|
|
|
|
TRACE_EVENT(scmi_msg_dump,
|
|
TP_PROTO(int id, u8 channel_id, u8 protocol_id, u8 msg_id,
|
|
unsigned char *tag, u16 seq, int status,
|
|
void *buf, size_t len),
|
|
TP_ARGS(id, channel_id, protocol_id, msg_id, tag, seq, status,
|
|
buf, len),
|
|
|
|
TP_STRUCT__entry(
|
|
__field(int, id)
|
|
__field(u8, channel_id)
|
|
__field(u8, protocol_id)
|
|
__field(u8, msg_id)
|
|
__array(char, tag, TRACE_SCMI_MAX_TAG_LEN)
|
|
__field(u16, seq)
|
|
__field(int, status)
|
|
__field(size_t, len)
|
|
__dynamic_array(unsigned char, cmd, len)
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__entry->id = id;
|
|
__entry->channel_id = channel_id;
|
|
__entry->protocol_id = protocol_id;
|
|
__entry->msg_id = msg_id;
|
|
strscpy(__entry->tag, tag, TRACE_SCMI_MAX_TAG_LEN);
|
|
__entry->seq = seq;
|
|
__entry->status = status;
|
|
__entry->len = len;
|
|
memcpy(__get_dynamic_array(cmd), buf, __entry->len);
|
|
),
|
|
|
|
TP_printk("id=%d ch=%02X pt=%02X t=%s msg_id=%02X seq=%04X s=%d pyld=%s",
|
|
__entry->id, __entry->channel_id, __entry->protocol_id,
|
|
__entry->tag, __entry->msg_id, __entry->seq, __entry->status,
|
|
__print_hex_str(__get_dynamic_array(cmd), __entry->len))
|
|
);
|
|
#endif /* _TRACE_SCMI_H */
|
|
|
|
/* This part must be outside protection */
|
|
#include <trace/define_trace.h>
|