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=-11.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,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 E2C15C48BCD for ; Wed, 9 Jun 2021 14:20:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CB7D0613BF for ; Wed, 9 Jun 2021 14:20:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232958AbhFIOW0 (ORCPT ); Wed, 9 Jun 2021 10:22:26 -0400 Received: from mga09.intel.com ([134.134.136.24]:10581 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233694AbhFIOWY (ORCPT ); Wed, 9 Jun 2021 10:22:24 -0400 IronPort-SDR: jZzltjBNUMgrcn15fUEK/KnBW64OjR8+7eSRXTpzzonm06HeYaGBlRhLLQXoolU7QuvbHIRWRm XyejX2zYNWFQ== X-IronPort-AV: E=McAfee;i="6200,9189,10010"; a="205044704" X-IronPort-AV: E=Sophos;i="5.83,261,1616482800"; d="scan'208";a="205044704" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Jun 2021 07:20:29 -0700 IronPort-SDR: WfLo4cc+UgV6SbfatsBivVOy/B2eTmHjgqMyvbWhvItxXB1u9xe8KCZWFXDBh3Jqx8zUp7IJu0 Sr+W/HbBNBjA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.83,261,1616482800"; d="scan'208";a="482402661" Received: from ahunter-desktop.fi.intel.com ([10.237.72.79]) by orsmga001.jf.intel.com with ESMTP; 09 Jun 2021 07:20:25 -0700 From: Adrian Hunter To: Peter Zijlstra Cc: Ingo Molnar , Arnaldo Carvalho de Melo , Mark Rutland , Alexander Shishkin , Jiri Olsa , Leo Yan , Kan Liang , x86@kernel.org, linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 0/3] perf intel-pt: Add PEBS-via-PT side-band Date: Wed, 9 Jun 2021 17:20:52 +0300 Message-Id: <20210609142055.32226-1-adrian.hunter@intel.com> X-Mailer: git-send-email 2.17.1 Organization: Intel Finland Oy, Registered Address: PL 281, 00181 Helsinki, Business Identity Code: 0357606 - 4, Domiciled in Helsinki Precedence: bulk List-ID: X-Mailing-List: linux-perf-users@vger.kernel.org Hi PEBS output to Intel Processor Trace was introduced with Atom processors based on Tremont. Currently there is software support only for a single PEBS-via-PT event. Here is support for multiple PEBS-via-PT events. The first patch is the kernel change which adds a new event, namely PERF_RECORD_AUX_OUTPUT_HW_ID which contains the counter index. That is output when the PEBS-via-PT event is enabled in hardware. There is an optimization, to report the index only when it changes for the event. That will work only so long as all PEBS-via-PT events are scheduled together, which they are for a recording session because they are in a single group. Also no attribute bit is used to select the new event, so a new kernel is not compatible with older perf tools. The assumption being that PEBS-via-PT is sufficiently esoteric that users will not be troubled by this. The second patch adds the usual boiler plate to perf tools for a new event. The third patch adds support for processing the new event by perf tool's Intel PT decoder. Adrian Hunter (3): perf/x86: Add new event for AUX output counter index perf tools: Add support for PERF_RECORD_AUX_OUTPUT_HW_ID perf intel-pt: Add support for PERF_RECORD_AUX_OUTPUT_HW_ID arch/x86/events/core.c | 1 + arch/x86/events/intel/ds.c | 16 ++++++ include/linux/perf_event.h | 2 + include/uapi/linux/perf_event.h | 15 ++++++ kernel/events/core.c | 30 +++++++++++ tools/include/uapi/linux/perf_event.h | 15 ++++++ tools/lib/perf/include/perf/event.h | 6 +++ tools/perf/Documentation/perf-intel-pt.txt | 7 ++- tools/perf/builtin-inject.c | 4 +- tools/perf/builtin-record.c | 2 +- tools/perf/util/event.c | 18 +++++++ tools/perf/util/event.h | 5 ++ tools/perf/util/intel-pt.c | 85 ++++++++++++++++++++++++++++-- tools/perf/util/machine.c | 10 ++++ tools/perf/util/machine.h | 2 + tools/perf/util/session.c | 5 ++ tools/perf/util/tool.h | 1 + 17 files changed, 217 insertions(+), 7 deletions(-) Regards Adrian