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=-9.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 37D40C43613 for ; Fri, 21 Jun 2019 17:39:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0F89821537 for ; Fri, 21 Jun 2019 17:39:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1561138798; bh=xE0k9N05ZUGquXZDysVmXTA8LbITFFdKTr5WaTDA5Os=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=hfAud+wi//34ovJmWPvirDdhtG1RTMu1JOu5YNNhwcZFyagPI8zGvyWm9wuulfJQB 34cNFM5jP/VoHOfUSds7JvhAkaYyD2KZfNlahnIgNGiR4K6qWxhsTwsBv1ftVGKgg6 qb/LV159yBZ/5r3VObVdxOv/IAGuLySfldqqEu+c= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726384AbfFURj5 (ORCPT ); Fri, 21 Jun 2019 13:39:57 -0400 Received: from mail.kernel.org ([198.145.29.99]:59052 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726205AbfFURjz (ORCPT ); Fri, 21 Jun 2019 13:39:55 -0400 Received: from quaco.ghostprotocols.net (187-26-104-93.3g.claro.net.br [187.26.104.93]) (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 65D552083B; Fri, 21 Jun 2019 17:39:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1561138794; bh=xE0k9N05ZUGquXZDysVmXTA8LbITFFdKTr5WaTDA5Os=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=0zqPEJdP/PXvWy/U4RrJ5cqqSOhf9+a80MEHEXMvnI9yG0Y9F6vZENXcnxrvzJ1CG jJQ0/p8dqvJAlA7d8grxUYiS5ou1h4xQ0WBmuPb2yDX3Oig5AWYWIvNDctSlq+m+Cg VLHw2U0L0fBDdZ8liHh/26vF7w1ZIpcDKvngTqXo= From: Arnaldo Carvalho de Melo To: Ingo Molnar , Thomas Gleixner Cc: Jiri Olsa , Namhyung Kim , Clark Williams , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Adrian Hunter , Jiri Olsa , Arnaldo Carvalho de Melo Subject: [PATCH 08/25] perf intel-pt: Synthesize PEBS sample basic information Date: Fri, 21 Jun 2019 14:38:14 -0300 Message-Id: <20190621173831.13780-9-acme@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190621173831.13780-1-acme@kernel.org> References: <20190621173831.13780-1-acme@kernel.org> 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 From: Adrian Hunter Synthesize a PEBS sample using basic information (ip, timestamp) only. Other PEBS information will be added in later patches. Signed-off-by: Adrian Hunter Cc: Jiri Olsa Link: http://lkml.kernel.org/r/20190610072803.10456-7-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/intel-pt.c | 52 ++++++++++++++++++++++++++++++++++++-- 1 file changed, 50 insertions(+), 2 deletions(-) diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c index a2d90b2f1f11..979519b00a74 100644 --- a/tools/perf/util/intel-pt.c +++ b/tools/perf/util/intel-pt.c @@ -1547,9 +1547,57 @@ static int intel_pt_synth_pwrx_sample(struct intel_pt_queue *ptq) pt->pwr_events_sample_type); } -static int intel_pt_synth_pebs_sample(struct intel_pt_queue *ptq __maybe_unused) +static int intel_pt_synth_pebs_sample(struct intel_pt_queue *ptq) { - return 0; + const struct intel_pt_blk_items *items = &ptq->state->items; + struct perf_sample sample = { .ip = 0, }; + union perf_event *event = ptq->event_buf; + struct intel_pt *pt = ptq->pt; + struct perf_evsel *evsel = pt->pebs_evsel; + u64 sample_type = evsel->attr.sample_type; + u64 id = evsel->id[0]; + u8 cpumode; + + if (intel_pt_skip_event(pt)) + return 0; + + intel_pt_prep_a_sample(ptq, event, &sample); + + sample.id = id; + sample.stream_id = id; + + if (!evsel->attr.freq) + sample.period = evsel->attr.sample_period; + + /* No support for non-zero CS base */ + if (items->has_ip) + sample.ip = items->ip; + else if (items->has_rip) + sample.ip = items->rip; + else + sample.ip = ptq->state->from_ip; + + /* No support for guest mode at this time */ + cpumode = sample.ip < ptq->pt->kernel_start ? + PERF_RECORD_MISC_USER : + PERF_RECORD_MISC_KERNEL; + + event->sample.header.misc = cpumode | PERF_RECORD_MISC_EXACT_IP; + + sample.cpumode = cpumode; + + if (sample_type & PERF_SAMPLE_TIME) { + u64 timestamp = 0; + + if (items->has_timestamp) + timestamp = items->timestamp; + else if (!pt->timeless_decoding) + timestamp = ptq->timestamp; + if (timestamp) + sample.time = tsc_to_perf_time(timestamp, &pt->tc); + } + + return intel_pt_deliver_synth_event(pt, ptq, event, &sample, sample_type); } static int intel_pt_synth_error(struct intel_pt *pt, int code, int cpu, -- 2.20.1