From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id DB673CD98CF for ; Fri, 12 Jun 2026 22:39:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=1skMGyWcIwP6d/wajOmln3d7RvV3oP+0pDqfsh/2McQ=; b=egxyed45/OIsXmN4sgVA5ApPWy EQ2AVCfwjbWgpHzQm6PHyY7vfSIWXdTCcBdI+YHEz/dPkOmnxLvq+G6Rq6fgjSoRmEB++o1LwyPer Rpp258ghiYaz7BTSUs103FY7JWqvFSIvA8i4mh4VJVYjg7Pgt9IPFvWUTNMjZFj1QbUIRQO8i6L65 nRivzCrGDBQESsKg0BkbCmQtyDdKOXWaJVo++NaR12JCSW1Sgq15FD4c3AYQP8MHLSlD3SlgZyU+A uehq/0caea+QadD+wT0YQsbNq6HKg1GB4kv8pXJAsqI/+Yet3Aa3Eec2RjUWuSk5gC79sRJbh2OGx 71LQ/RFQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wYAWs-0000000Bft1-0vEI; Fri, 12 Jun 2026 22:39:10 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wYAWo-0000000Bfpj-0p15 for linux-arm-kernel@lists.infradead.org; Fri, 12 Jun 2026 22:39:07 +0000 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 060764A0F; Fri, 12 Jun 2026 15:39:00 -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 0650E3FB7F; Fri, 12 Jun 2026 15:39:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1781303944; bh=CwJGWGgRXKnupukDLWD6QwCAt4HaM/Pbt3pAL9OqFfU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=auPPCZecewgJr+2ducSACADmnu+7gt/brDhetXzFXAm/mwLjqycDDoSS0lv22KKTQ 6e1Tsm4Zd4U+80vzK7FZTpSt7c1rVvtVHbtl7yvdDXzCN2qgH3F9c4ejty4T09L7on 3L1RXhxpIk2IyRuKvIkGTecq45k/rewXSArILvNo= 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, 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, 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 v4 07/31] include: trace: Add Telemetry trace events Date: Fri, 12 Jun 2026 23:37:37 +0100 Message-ID: <20260612223802.1337232-8-cristian.marussi@arm.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260612223802.1337232-1-cristian.marussi@arm.com> References: <20260612223802.1337232-1-cristian.marussi@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260612_153906_313091_39600D05 X-CRM114-Status: UNSURE ( 9.23 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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 @@ #include -#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