From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 51F983E00A3; Sun, 20 Sep 2026 09:20:33 +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=1789896037; cv=none; b=S7c6Tmsz2jGGBakhKtBKin4lDcQ7zBs+QrfoO07GWiS9jqr0SLnq/ESrthsxfNz0KtDFRoLcqYhQpGJx8dtfWhpJuXkD9+bwYH4o7VbJjs4CQfAWPBP8ne4ivq7LyejVuIjY9JAavIrjJ7L4f7ViG9I9BD+GArlJ/Yp86W8ZeaQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789896037; c=relaxed/simple; bh=5P9ZuvQ/38HQaH48tpNZsAjPLPf474W8M/GUNsIkNhg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=SU+8cd+uIa/mAyopltYSHvM6vX8wYZmscMhdtZHaUaeAxkYLTtsr4bb6mRYwBBtJvyyciwJ+RBI6I8gKWJ5pWdmqxRF9E51YHcm17z32Ao7hw4yHvdAl24u7wc/KYksx7m87CW9CS3M6jsdqsOff4JA7flrL2N+DykJDe5Okxts= 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; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b=LOoksWJS; 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 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b="LOoksWJS" 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 EAB3D175A; Sun, 20 Sep 2026 02:20:27 -0700 (PDT) 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 8607C3F59E; Sun, 20 Sep 2026 02:20:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1789896031; bh=5P9ZuvQ/38HQaH48tpNZsAjPLPf474W8M/GUNsIkNhg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LOoksWJSjtMeePyMiXJfH+9OLN2gtTHLTPlgC/C2JRt8NQlYae9Tn+DHd45zWfCnf A8vnrnjmMctFuhsd/6bbVGkjYtmRtKtgdgKz+zMy7atW/8B+6JOEOS3cia/2P/lBLI Xj7jnhlnAEcctgcTvoI4LGYDm5sxRyd34Nft0CxY= From: Cristian Marussi 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, 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 Subject: [PATCH v12 05/25] include: trace: Add Telemetry trace events Date: Sun, 20 Sep 2026 10:19:08 +0100 Message-ID: <20260920091928.2014972-6-cristian.marussi@arm.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260920091928.2014972-1-cristian.marussi@arm.com> References: <20260920091928.2014972-1-cristian.marussi@arm.com> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 --- v7 --> v8 - use proper FTRACE helpers for variable strings --- include/trace/events/scmi.h | 45 +++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) diff --git a/include/trace/events/scmi.h b/include/trace/events/scmi.h index 703b7bb68e44..002d2bc9ae15 100644 --- a/include/trace/events/scmi.h +++ b/include/trace/events/scmi.h @@ -180,6 +180,51 @@ 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) + __string(tag, tag) + __field(u64, startm) + __field(u64, endm) + ), + + TP_fast_assign( + __entry->de_id = de_id; + __assign_str(tag); + __entry->startm = startm; + __entry->endm = endm; + ), + + TP_printk("[%s] de_id=0x%llX - startm=%016llX endm=%016llX", + __get_str(tag), __entry->de_id, __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) + __string(tag, tag) + ), + + TP_fast_assign( + __entry->ts = ts; + __entry->de_id = de_id; + __entry->value = value; + __assign_str(tag); + ), + + TP_printk("[%s] ts=%llu de_id=0x%04llX value=%016llu", + __get_str(tag), __entry->ts, __entry->de_id, __entry->value) +); + #endif /* _TRACE_SCMI_H */ /* This part must be outside protection */ -- 2.54.0