From patchwork Fri Feb 12 14:45:13 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James Clark X-Patchwork-Id: 12085425 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=-17.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham 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 A7EC8C433E6 for ; Fri, 12 Feb 2021 14:47:43 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 53BBE64E85 for ; Fri, 12 Feb 2021 14:47:43 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 53BBE64E85 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=ZhByd4NEukXbdeXjGJPT8Cx6A0fgilNjiKWom3TYjt8=; b=FaZmyop2prpYbbJzuZWYtcqMe xGUiNx5MANWiLQQTveDVVcZ6/VHFqYLEioQ/+6zPhBpjLuVcIVslC+TqRPNrFd0GrKdxkZLJz3XRs o+ebFHIiVeg7Kj+jXHkwb1iiRxqxMSEARNf+1aMruAQmMCNlS5ohFtVXPKSJQh0PuIOBwsNJRT0d6 YoGJ7w/VISOMCyT26a8pFYeabFFTkcqk5wOzk3iAXPKAjCfqLn6doMlp2QyBRUSiE3JXJm11sF4+e 9+74g5bOHW9SJg5XmR1jcanNm//x0SDqepdWrzINzd8Nf41P/3oqyXZ6SfZ1kegUuxJgFPqjBf8zn hcJyUFxkQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1lAZiO-0006Km-5n; Fri, 12 Feb 2021 14:46:36 +0000 Received: from foss.arm.com ([217.140.110.172]) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1lAZhr-000655-H8 for linux-arm-kernel@lists.infradead.org; Fri, 12 Feb 2021 14:46:04 +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 C006C1476; Fri, 12 Feb 2021 06:46:02 -0800 (PST) Received: from e121896.arm.com (unknown [10.57.46.164]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 0872F3F73D; Fri, 12 Feb 2021 06:45:59 -0800 (PST) From: James Clark To: coresight@lists.linaro.org Subject: [PATCH 7/7] perf cs-etm: Suppress printing when resetting decoder Date: Fri, 12 Feb 2021 16:45:13 +0200 Message-Id: <20210212144513.31765-8-james.clark@arm.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20210212144513.31765-1-james.clark@arm.com> References: <20210212144513.31765-1-james.clark@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210212_094603_687653_893C0B04 X-CRM114-Status: GOOD ( 12.26 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , branislav.rankov@arm.com, al.grant@arm.com, denik@chromium.org, Mathieu Poirier , suzuki.poulose@arm.com, Alexander Shishkin , Will Deacon , John Garry , linux-kernel@vger.kernel.org, James Clark , Leo Yan , Namhyung Kim , Jiri Olsa , linux-arm-kernel@lists.infradead.org, Mike Leach Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The decoder is quite noisy when being reset. Now that dump-raw-trace uses a code path that resets the decoder rather than creating a new one, printing has to be suppressed to not flood the output. Signed-off-by: James Clark --- tools/perf/util/cs-etm-decoder/cs-etm-decoder.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c b/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c index 3f4bc4050477..e0d530d94e1e 100644 --- a/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c +++ b/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c @@ -32,6 +32,7 @@ struct cs_etm_decoder { void *data; void (*packet_printer)(const char *msg); + bool suppress_printing; dcd_tree_handle_t dcd_tree; cs_etm_mem_cb_type mem_access; ocsd_datapath_resp_t prev_return; @@ -71,9 +72,10 @@ int cs_etm_decoder__reset(struct cs_etm_decoder *decoder) ocsd_datapath_resp_t dp_ret; decoder->prev_return = OCSD_RESP_CONT; - + decoder->suppress_printing = true; dp_ret = ocsd_dt_process_data(decoder->dcd_tree, OCSD_OP_RESET, 0, 0, NULL, NULL); + decoder->suppress_printing = false; if (OCSD_DATA_RESP_IS_FATAL(dp_ret)) return -1; @@ -143,8 +145,10 @@ static void cs_etm_decoder__print_str_cb(const void *p_context, const char *msg, const int str_len) { - if (p_context && str_len) - ((struct cs_etm_decoder *)p_context)->packet_printer(msg); + const struct cs_etm_decoder *decoder = p_context; + + if (p_context && str_len && !decoder->suppress_printing) + decoder->packet_printer(msg); } static int