perf tools: Make coresight PMU listable
Adding the required mechanic allowing 'perf list pmu' to discover coresight ETM/PTM tracers. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> 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 <acme@redhat.com>
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@ -1123,6 +1123,7 @@ F: drivers/hwtracing/coresight/*
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F: Documentation/trace/coresight.txt
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F: Documentation/devicetree/bindings/arm/coresight.txt
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F: Documentation/ABI/testing/sysfs-bus-coresight-devices-*
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F: tools/perf/arch/arm/util/pmu.c
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ARM/CORGI MACHINE SUPPORT
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M: Richard Purdie <rpurdie@rpsys.net>
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@ -2,3 +2,5 @@ libperf-$(CONFIG_DWARF) += dwarf-regs.o
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libperf-$(CONFIG_LOCAL_LIBUNWIND) += unwind-libunwind.o
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libperf-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o
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libperf-$(CONFIG_AUXTRACE) += pmu.o
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34
tools/perf/arch/arm/util/pmu.c
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tools/perf/arch/arm/util/pmu.c
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@ -0,0 +1,34 @@
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/*
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* Copyright(C) 2015 Linaro Limited. All rights reserved.
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* Author: Mathieu Poirier <mathieu.poirier@linaro.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <string.h>
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#include <linux/coresight-pmu.h>
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#include <linux/perf_event.h>
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#include "../../util/pmu.h"
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struct perf_event_attr
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*perf_pmu__get_default_config(struct perf_pmu *pmu __maybe_unused)
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{
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#ifdef HAVE_AUXTRACE_SUPPORT
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if (!strcmp(pmu->name, CORESIGHT_ETM_PMU_NAME)) {
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/* add ETM default config here */
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pmu->selectable = true;
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}
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#endif
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return NULL;
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}
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@ -1,2 +1,4 @@
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libperf-$(CONFIG_DWARF) += dwarf-regs.o
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libperf-$(CONFIG_LOCAL_LIBUNWIND) += unwind-libunwind.o
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libperf-$(CONFIG_AUXTRACE) += ../../arm/util/pmu.o
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