From patchwork Thu Sep 22 21:12:48 2016 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: 76817 Delivered-To: patch@linaro.org Received: by 10.140.106.72 with SMTP id d66csp241548qgf; Thu, 22 Sep 2016 14:15:08 -0700 (PDT) X-Received: by 10.66.144.5 with SMTP id si5mr6784096pab.158.1474578908020; Thu, 22 Sep 2016 14:15:08 -0700 (PDT) Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id o87si3771543pfk.13.2016.09.22.14.15.07; Thu, 22 Sep 2016 14:15:08 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1034862AbcIVVO7 (ORCPT + 27 others); Thu, 22 Sep 2016 17:14:59 -0400 Received: from bombadil.infradead.org ([198.137.202.9]:37321 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965478AbcIVVNh (ORCPT ); Thu, 22 Sep 2016 17:13:37 -0400 Received: from [187.65.123.41] (helo=jouet.infradead.org) by bombadil.infradead.org with esmtpsa (Exim 4.85_2 #1 (Red Hat Linux)) id 1bnBJG-0000sO-Ak; Thu, 22 Sep 2016 21:13:34 +0000 Received: by jouet.infradead.org (Postfix, from userid 1000) id 479981401AE; Thu, 22 Sep 2016 18:13:00 -0300 (BRT) From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Mathieu Poirier , Alexander Shishkin , Peter Zijlstra , linux-arm-kernel@lists.infradead.org, Arnaldo Carvalho de Melo Subject: [PATCH 04/15] perf tools: Make coresight PMU listable Date: Thu, 22 Sep 2016 18:12:48 -0300 Message-Id: <1474578779-14095-5-git-send-email-acme@kernel.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1474578779-14095-1-git-send-email-acme@kernel.org> References: <1474578779-14095-1-git-send-email-acme@kernel.org> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Mathieu Poirier Adding the required mechanic allowing 'perf list pmu' to discover coresight ETM/PTM tracers. Signed-off-by: Mathieu Poirier Acked-by: Adrian Hunter Acked-by: Jiri Olsa Cc: Alexander Shishkin Cc: Peter Zijlstra Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1474041004-13956-3-git-send-email-mathieu.poirier@linaro.org Signed-off-by: Arnaldo Carvalho de Melo --- MAINTAINERS | 1 + tools/perf/arch/arm/util/Build | 2 ++ tools/perf/arch/arm/util/pmu.c | 34 ++++++++++++++++++++++++++++++++++ tools/perf/arch/arm64/util/Build | 2 ++ 4 files changed, 39 insertions(+) create mode 100644 tools/perf/arch/arm/util/pmu.c -- 2.7.4 diff --git a/MAINTAINERS b/MAINTAINERS index db814a89599c..7407fe779053 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1123,6 +1123,7 @@ F: drivers/hwtracing/coresight/* F: Documentation/trace/coresight.txt F: Documentation/devicetree/bindings/arm/coresight.txt F: Documentation/ABI/testing/sysfs-bus-coresight-devices-* +F: tools/perf/arch/arm/util/pmu.c ARM/CORGI MACHINE SUPPORT M: Richard Purdie diff --git a/tools/perf/arch/arm/util/Build b/tools/perf/arch/arm/util/Build index f98da17357c0..4093fd146f46 100644 --- a/tools/perf/arch/arm/util/Build +++ b/tools/perf/arch/arm/util/Build @@ -2,3 +2,5 @@ libperf-$(CONFIG_DWARF) += dwarf-regs.o libperf-$(CONFIG_LOCAL_LIBUNWIND) += unwind-libunwind.o libperf-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o + +libperf-$(CONFIG_AUXTRACE) += pmu.o diff --git a/tools/perf/arch/arm/util/pmu.c b/tools/perf/arch/arm/util/pmu.c new file mode 100644 index 000000000000..af9fb666b44f --- /dev/null +++ b/tools/perf/arch/arm/util/pmu.c @@ -0,0 +1,34 @@ +/* + * Copyright(C) 2015 Linaro Limited. All rights reserved. + * Author: Mathieu Poirier + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see . + */ + +#include +#include +#include + +#include "../../util/pmu.h" + +struct perf_event_attr +*perf_pmu__get_default_config(struct perf_pmu *pmu __maybe_unused) +{ +#ifdef HAVE_AUXTRACE_SUPPORT + if (!strcmp(pmu->name, CORESIGHT_ETM_PMU_NAME)) { + /* add ETM default config here */ + pmu->selectable = true; + } +#endif + return NULL; +} diff --git a/tools/perf/arch/arm64/util/Build b/tools/perf/arch/arm64/util/Build index 02f41dba4f4f..3876dd05bb8b 100644 --- a/tools/perf/arch/arm64/util/Build +++ b/tools/perf/arch/arm64/util/Build @@ -1,2 +1,4 @@ libperf-$(CONFIG_DWARF) += dwarf-regs.o libperf-$(CONFIG_LOCAL_LIBUNWIND) += unwind-libunwind.o + +libperf-$(CONFIG_AUXTRACE) += ../../arm/util/pmu.o