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From: Cristian Marussi <cristian.marussi@arm.com>
To: linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, arm-scmi@vger.kernel.org,
	linux-doc@vger.kernel.org
Cc: sudeep.holla@kernel.org, james.quinlan@broadcom.com,
	f.fainelli@gmail.com, vincent.guittot@linaro.org,
	etienne.carriere@st.com, peng.fan@oss.nxp.com,
	michal.simek@amd.com, d-gole@ti.com, jic23@kernel.org,
	elif.topuz@arm.com, lukasz.luba@arm.com, philip.radford@arm.com,
	brauner@kernel.org, david@kernel.org, souvik.chakravarty@arm.com,
	leitao@kernel.org, kas@kernel.org, puranjay@kernel.org,
	usama.arif@linux.dev, kernel-team@meta.com,
	Cristian Marussi <cristian.marussi@arm.com>
Subject: [PATCH v5 06/23] include: trace: Add Telemetry trace events
Date: Fri,  3 Jul 2026 13:35:44 +0100	[thread overview]
Message-ID: <20260703123601.381275-7-cristian.marussi@arm.com> (raw)
In-Reply-To: <20260703123601.381275-1-cristian.marussi@arm.com>

Add custom traces to report Telemetry failed accesses and to report when DE
values are updated internally after a notification is processed.

Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
---
 include/trace/events/scmi.h | 48 ++++++++++++++++++++++++++++++++++++-
 1 file changed, 47 insertions(+), 1 deletion(-)

diff --git a/include/trace/events/scmi.h b/include/trace/events/scmi.h
index 703b7bb68e44..b70b26e467b8 100644
--- a/include/trace/events/scmi.h
+++ b/include/trace/events/scmi.h
@@ -7,7 +7,8 @@
 
 #include <linux/tracepoint.h>
 
-#define TRACE_SCMI_MAX_TAG_LEN	6
+#define TRACE_SCMI_MAX_TAG_LEN		6
+#define TRACE_SCMI_TLM_MAX_TAG_LEN	16
 
 TRACE_EVENT(scmi_fc_call,
 	TP_PROTO(u8 protocol_id, u8 msg_id, u32 res_id, u32 val1, u32 val2),
@@ -180,6 +181,51 @@ TRACE_EVENT(scmi_msg_dump,
 		  __entry->tag, __entry->msg_id, __entry->seq, __entry->status,
 		__print_hex_str(__get_dynamic_array(cmd), __entry->len))
 );
+
+TRACE_EVENT(scmi_tlm_access,
+	TP_PROTO(u64 de_id, unsigned char *tag, u64 startm, u64 endm),
+	TP_ARGS(de_id, tag, startm, endm),
+
+	TP_STRUCT__entry(
+		__field(u64, de_id)
+		__array(char, tag, TRACE_SCMI_TLM_MAX_TAG_LEN)
+		__field(u64, startm)
+		__field(u64, endm)
+	),
+
+	TP_fast_assign(
+		__entry->de_id = de_id;
+		strscpy(__entry->tag, tag, TRACE_SCMI_TLM_MAX_TAG_LEN);
+		__entry->startm = startm;
+		__entry->endm = endm;
+	),
+
+	TP_printk("de_id=0x%llX [%s] - startm=%016llX endm=%016llX",
+		  __entry->de_id, __entry->tag, __entry->startm, __entry->endm)
+);
+
+TRACE_EVENT(scmi_tlm_collect,
+	TP_PROTO(u64 ts, u64 de_id, u64 value, unsigned char *tag),
+	TP_ARGS(ts, de_id, value, tag),
+
+	TP_STRUCT__entry(
+		__field(u64, ts)
+		__field(u64, de_id)
+		__field(u64, value)
+		__array(char, tag, TRACE_SCMI_TLM_MAX_TAG_LEN)
+	),
+
+	TP_fast_assign(
+		__entry->ts = ts;
+		__entry->de_id = de_id;
+		__entry->value = value;
+		strscpy(__entry->tag, tag, TRACE_SCMI_TLM_MAX_TAG_LEN);
+	),
+
+	TP_printk("ts=%llu  de_id=0x%04llX  value=%016llu [%s]",
+		  __entry->ts, __entry->de_id, __entry->value, __entry->tag)
+);
+
 #endif /* _TRACE_SCMI_H */
 
 /* This part must be outside protection */
-- 
2.54.0



  parent reply	other threads:[~2026-07-03 12:37 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-03 12:35 [PATCH v5 00/23] Introduce SCMI Telemetry support Cristian Marussi
2026-07-03 12:35 ` [PATCH v5 01/23] firmware: arm_scmi: Add new SCMIv4.0 error codes definitions Cristian Marussi
2026-07-03 12:35 ` [PATCH v5 02/23] firmware: arm_scmi: Reduce the scope of protocols mutex Cristian Marussi
2026-07-03 12:35 ` [PATCH v5 03/23] firmware: arm_scmi: Allow registration of unknown-size events/reports Cristian Marussi
2026-07-03 12:35 ` [PATCH v5 04/23] firmware: arm_scmi: Allow protocols to register for notifications Cristian Marussi
2026-07-03 12:35 ` [PATCH v5 05/23] dt-bindings: firmware: arm,scmi: Add support for telemetry protocol Cristian Marussi
2026-07-03 12:35 ` Cristian Marussi [this message]
2026-07-03 12:35 ` [PATCH v5 07/23] firmware: arm_scmi: Add basic Telemetry support Cristian Marussi
2026-07-03 12:35 ` [PATCH v5 08/23] firmware: arm_scmi: Add support to parse SHMTIs areas Cristian Marussi
2026-07-03 12:35 ` [PATCH v5 09/23] firmware: arm_scmi: Add Telemetry configuration operations Cristian Marussi
2026-07-03 12:35 ` [PATCH v5 10/23] firmware: arm_scmi: Add Telemetry DataEvent read capabilities Cristian Marussi
2026-07-03 12:35 ` [PATCH v5 11/23] firmware: arm_scmi: Add support for Telemetry reset Cristian Marussi
2026-07-03 12:35 ` [PATCH v5 12/23] firmware: arm_scmi: Add Telemetry notification support Cristian Marussi
2026-07-03 12:35 ` [PATCH v5 13/23] firmware: arm_scmi: Add support for boot-on Telemetry Cristian Marussi
2026-07-03 12:35 ` [PATCH v5 14/23] firmware: arm_scmi: Add Telemetry generation counter Cristian Marussi
2026-07-03 12:35 ` [PATCH v5 15/23] firmware: arm_scmi: Add common per-protocol debugfs support Cristian Marussi
2026-07-03 12:35 ` [PATCH v5 16/23] firmware: arm_scmi: Add Telemetry debugfs SHMTI dump support Cristian Marussi
2026-07-03 12:35 ` [PATCH v5 17/23] firmware: arm_scmi: Add Telemetry debugfs ABI documentation Cristian Marussi
2026-07-03 12:35 ` [PATCH v5 18/23] firmware: arm_scmi: Expose per-instance identifier Cristian Marussi
2026-07-03 12:35 ` [PATCH v5 19/23] uapi: Add ARM SCMI Telemetry definitions Cristian Marussi
2026-07-03 12:35 ` [PATCH v5 20/23] firmware: arm_scmi: Add System Telemetry driver Cristian Marussi
2026-07-03 12:35 ` [PATCH v5 21/23] docs: ioctl-number: Add SCMI Ioctls Cristian Marussi
2026-07-03 12:36 ` [PATCH v5 22/23] Documentation: Add SCMI System Telemetry documentation Cristian Marussi
2026-07-03 12:36 ` [PATCH v5 23/23] [RFC] tools/scmi: Add SCMI Telemetry testing tool Cristian Marussi
2026-07-07  6:31 ` [PATCH v5 00/23] Introduce SCMI Telemetry support Subrahmanya Lingappa
2026-07-08 20:05   ` David Hildenbrand (Arm)
2026-07-10  8:32   ` Cristian Marussi

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