From nobody Tue Feb 10 07:40:08 2026 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 19694396D0E; Wed, 14 Jan 2026 11:47:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768391270; cv=none; b=h1ztZN2kRD5fIsdSQNPpsmvw9OAi+U3H+irmN690ArWBate6su547v18iZ84r/oYstxIQU46DB+0f6ptiE2gN+8gidigIkox/3AlVOtMUVmNFosUJRyHO44tB+HaCqt3z7DoAHRK3XY0gZpQlOxXWdm1lCcbSn7kG0lkaP+7mZA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768391270; c=relaxed/simple; bh=D0g2vcVrBfhGyNmNbU3fjKfhqXSK4OK8D4ZY2a9U8hw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=HF1CXBk+Lxrc349jxpC3ZBcx61K8dk6Xno/Cr/GNCJSb+shVyPM4YAd/B5BumspYkY9rq7nAyEQeWj7/Kdf3kMxPdWBKhsz12agS/N371IvOX1gTUgj6piEj1hL3yyvsTa+M9gJu39xHqWLGdIZKu0ncNrES+ltWru76zc2ziwQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id B384D497; Wed, 14 Jan 2026 03:47:37 -0800 (PST) Received: from pluto.fritz.box (usa-sjc-mx-foss1.foss.arm.com [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id E6C573F59E; Wed, 14 Jan 2026 03:47:40 -0800 (PST) From: Cristian Marussi To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, arm-scmi@vger.kernel.org, linux-fsdevel@vger.kernel.org Cc: sudeep.holla@arm.com, 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, dan.carpenter@linaro.org, d-gole@ti.com, jonathan.cameron@huawei.com, elif.topuz@arm.com, lukasz.luba@arm.com, philip.radford@arm.com, souvik.chakravarty@arm.com, Cristian Marussi Subject: [PATCH v2 06/17] include: trace: Add Telemetry trace events Date: Wed, 14 Jan 2026 11:46:10 +0000 Message-ID: <20260114114638.2290765-7-cristian.marussi@arm.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260114114638.2290765-1-cristian.marussi@arm.com> References: <20260114114638.2290765-1-cristian.marussi@arm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" 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 --- 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 @@ =20 #include =20 -#define TRACE_SCMI_MAX_TAG_LEN 6 +#define TRACE_SCMI_MAX_TAG_LEN 6 +#define TRACE_SCMI_TLM_MAX_TAG_LEN 16 =20 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 =3D de_id; + strscpy(__entry->tag, tag, TRACE_SCMI_TLM_MAX_TAG_LEN); + __entry->startm =3D startm; + __entry->endm =3D endm; + ), + + TP_printk("de_id=3D0x%llX [%s] - startm=3D%016llX endm=3D%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 =3D ts; + __entry->de_id =3D de_id; + __entry->value =3D value; + strscpy(__entry->tag, tag, TRACE_SCMI_TLM_MAX_TAG_LEN); + ), + + TP_printk("ts=3D%llu de_id=3D0x%04llX value=3D%016llu [%s]", + __entry->ts, __entry->de_id, __entry->value, __entry->tag) +); + #endif /* _TRACE_SCMI_H */ =20 /* This part must be outside protection */ --=20 2.52.0