From patchwork Tue Jun 11 18:58:26 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnaldo Carvalho de Melo X-Patchwork-Id: 10988165 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 95ED976 for ; Tue, 11 Jun 2019 19:03:24 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 824F9287AD for ; Tue, 11 Jun 2019 19:03:24 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 71D66287B3; Tue, 11 Jun 2019 19:03:24 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 0B877287AD for ; Tue, 11 Jun 2019 19:03:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.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=lyAZv/icP1VDZFGOev9j05ionCs4wQr9cB91Ca754JQ=; b=lnvSFfIx3YS4o3 5bQ7M9HT+uZsujc886Nn9cORFXnnMx+yeqvImBrCXzbGEWT2uoptlMo4fjvXsNM/gCZeb9ZuWZiG2 79yuYLLGYq2NeL7/tjVX/FWv7guP8e58POGotM54Bgs4PalAtKi2R81HShNC/b9uanqHZtem60fcS oVhXDvcVHgoPYCmkDMY7CGyi0dZbspWMqKOUNkzjHE57qgB7K8YwbDiuJ3aK4CyHyMNRvhYI48i1k ieadDhirsBO/dy5dUBGHrsDH/Tcn73qNyOXh8ljjlYPreouXfIswj7i4g2T/ieITXrGJyqrNU0I9b Yd/Wm9vAuPLDtccTw5yQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1ham3A-0005PZ-0H; Tue, 11 Jun 2019 19:03:16 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1ham2I-0004lE-LW for linux-arm-kernel@lists.infradead.org; Tue, 11 Jun 2019 19:02:24 +0000 Received: from quaco.ghostprotocols.net (unknown [179.97.35.11]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 8ED042183E; Tue, 11 Jun 2019 19:02:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1560279742; bh=0QqK2QyuTErClmvoocneuDu3zXEc1BnQfm/OZFXX5d4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PRolsfTuLKg0f6cffJnti4xLZNJJrXHyMaYuSic9pR4Q1MQ20Um4GnsmS9kvaNbGa xNIx2O81A8Oc3jUlqynpgX8qax7YHMie+WHW0+Mm4CTa88hyhI+vKRIBoh8k130T4D wwLLQLDlW/xIgSL9ido2Ute3+M73XZZ9w+Xo096I= From: Arnaldo Carvalho de Melo To: Ingo Molnar , Thomas Gleixner Subject: [PATCH 40/85] perf cs-etm: Add handling of itrace start events Date: Tue, 11 Jun 2019 15:58:26 -0300 Message-Id: <20190611185911.11645-41-acme@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190611185911.11645-1-acme@kernel.org> References: <20190611185911.11645-1-acme@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190611_120222_937049_6DCA2DC4 X-CRM114-Status: GOOD ( 11.25 ) 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: Arnaldo Carvalho de Melo , Mathieu Poirier , Suzuki Poulouse , Clark Williams , coresight@lists.linaro.org, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Alexander Shishkin , Peter Zijlstra , Jiri Olsa , Leo Yan , Namhyung Kim , Jiri Olsa , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Mathieu Poirier Add handling of ITRACE events in order to add the tid/pid of the executing process to the perf tools machine infrastructure. This information is later retrieved when a contextID packet is found in the trace stream. Signed-off-by: Mathieu Poirier Tested-by: Leo Yan Cc: Alexander Shishkin Cc: Jiri Olsa Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Suzuki Poulouse Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/20190524173508.29044-5-mathieu.poirier@linaro.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/cs-etm.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c index de488b43f440..0742c50fce46 100644 --- a/tools/perf/util/cs-etm.c +++ b/tools/perf/util/cs-etm.c @@ -1657,6 +1657,29 @@ static int cs_etm__process_timeless_queues(struct cs_etm_auxtrace *etm, return 0; } +static int cs_etm__process_itrace_start(struct cs_etm_auxtrace *etm, + union perf_event *event) +{ + struct thread *th; + + if (etm->timeless_decoding) + return 0; + + /* + * Add the tid/pid to the log so that we can get a match when + * we get a contextID from the decoder. + */ + th = machine__findnew_thread(etm->machine, + event->itrace_start.pid, + event->itrace_start.tid); + if (!th) + return -ENOMEM; + + thread__put(th); + + return 0; +} + static int cs_etm__process_event(struct perf_session *session, union perf_event *event, struct perf_sample *sample, @@ -1694,6 +1717,9 @@ static int cs_etm__process_event(struct perf_session *session, return cs_etm__process_timeless_queues(etm, event->fork.tid); + if (event->header.type == PERF_RECORD_ITRACE_START) + return cs_etm__process_itrace_start(etm, event); + return 0; }