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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 8F225C433ED for ; Mon, 17 May 2021 13:18:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6F416610E9 for ; Mon, 17 May 2021 13:18:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237344AbhEQNTX (ORCPT ); Mon, 17 May 2021 09:19:23 -0400 Received: from foss.arm.com ([217.140.110.172]:51182 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237326AbhEQNTT (ORCPT ); Mon, 17 May 2021 09:19:19 -0400 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 EFE0A139F; Mon, 17 May 2021 06:18:02 -0700 (PDT) Received: from e121896.arm.com (unknown [10.57.3.96]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 132943F73B; Mon, 17 May 2021 06:17:59 -0700 (PDT) From: James Clark To: acme@kernel.org, mathieu.poirier@linaro.org, coresight@lists.linaro.org, leo.yan@linaro.org Cc: al.grant@arm.com, branislav.rankov@arm.com, denik@chromium.org, suzuki.poulose@arm.com, anshuman.khandual@arm.com, James Clark , Mike Leach , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , John Garry , Will Deacon , linux-arm-kernel@lists.infradead.org, linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 2/3] perf cs-etm: Start reading 'Z' --itrace option Date: Mon, 17 May 2021 16:17:40 +0300 Message-Id: <20210517131741.3027-3-james.clark@arm.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20210517131741.3027-1-james.clark@arm.com> References: <20210517131741.3027-1-james.clark@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Recently the 'Z' --itrace option was added to override detection of timeless decoding. This is also useful in Coresight to work around issues with invalid timestamps on some hardware. When the 'Z' option is provided, the existing timeless decoding mode will be used, even if timestamps were recorded. Reviewed-by: Leo Yan Signed-off-by: James Clark --- tools/perf/util/cs-etm.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c index a752fe06f170..64536a6ed10a 100644 --- a/tools/perf/util/cs-etm.c +++ b/tools/perf/util/cs-etm.c @@ -2473,6 +2473,10 @@ static bool cs_etm__is_timeless_decoding(struct cs_etm_auxtrace *etm) struct evlist *evlist = etm->session->evlist; bool timeless_decoding = true; + /* Override timeless mode with user input from --itrace=Z */ + if (etm->synth_opts.timeless_decoding) + return true; + /* * Circle through the list of event and complain if we find one * with the time bit set. -- 2.28.0