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 X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8DD8CC433E3 for ; Sun, 26 Jul 2020 02:59:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6682C20700 for ; Sun, 26 Jul 2020 02:59:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="TtfaEDEn" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728076AbgGZC7s (ORCPT ); Sat, 25 Jul 2020 22:59:48 -0400 Received: from m43-7.mailgun.net ([69.72.43.7]:36786 "EHLO m43-7.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727101AbgGZC7s (ORCPT ); Sat, 25 Jul 2020 22:59:48 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1595732387; h=Content-Transfer-Encoding: MIME-Version: Message-Id: Date: Subject: Cc: To: From: Sender; bh=YJlWfawbaRsS8Sy0QV32pRFsqzlt1zIfjkcHj6ND5zI=; b=TtfaEDEnRdwPRjLkFAYZTQGFVVliYAvdyj8bQgIt5lq6E1BYEc8L5EhlGJK+0Yrb4+cS5+jK 3yywqPKXigPbGkSNfNXDRFR6Ly9Ot51lRRrzlFVIyEnUdxkhf/XV8L+2jVSIetBb99ra0qzi fCAkh1EekF8Hrj2GOFEr8VgqYmI= X-Mailgun-Sending-Ip: 69.72.43.7 X-Mailgun-Sid: WyI0MWYwYSIsICJsaW51eC1rZXJuZWxAdmdlci5rZXJuZWwub3JnIiwgImJlOWU0YSJd Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n05.prod.us-east-1.postgun.com with SMTP id 5f1cf1a27ab15087ebec2b95 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Sun, 26 Jul 2020 02:59:46 GMT Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 13848C433CB; Sun, 26 Jul 2020 02:59:46 +0000 (UTC) Received: from tingweiz-gv.qualcomm.com (unknown [180.166.53.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: tingwei) by smtp.codeaurora.org (Postfix) with ESMTPSA id BC677C433C9; Sun, 26 Jul 2020 02:59:43 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org BC677C433C9 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=tingwei@codeaurora.org From: Tingwei Zhang To: Steven Rostedt , Ingo Molnar Cc: Tingwei Zhang , tsoni@codeaurora.org, Sai Prakash Ranjan , Mao Jinlong , linux-kernel@vger.kernel.org Subject: [PATCH v2 0/6] tracing: export event trace and trace_marker Date: Sun, 26 Jul 2020 10:59:25 +0800 Message-Id: <20200726025931.30510-1-tingwei@codeaurora.org> X-Mailer: git-send-email 2.20.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Ftrace has ability to export trace packets to other destionation. Currently, only function trace can be exported. This series extends the support to event trace and trace_maker. STM is one possible destination to export ftrace. Use seperate channel for each CPU to avoid mixing up packets from different CPUs together. Change from v1: All changes are suggested by Steven Rostedt. User seperate flag to control function trace, event trace and trace mark. Allocate channels according to num_possible_cpu() dynamically. Move ftrace_exports routines up so all ftrace can use them. Tingwei Zhang (6): stm class: ftrace: change dependency to TRACING tracing: add flag to control different traces tracing: add trace_export support for event trace tracing: add trace_export support for trace_marker stm class: ftrace: enable supported trace export flag stm class: ftrace: use different channel accroding to CPU drivers/hwtracing/stm/Kconfig | 2 +- drivers/hwtracing/stm/ftrace.c | 6 +- include/linux/trace.h | 7 + kernel/trace/trace.c | 270 ++++++++++++++++++--------------- 4 files changed, 158 insertions(+), 127 deletions(-) -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project