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Commit 7e21b0d5 authored by Mathieu Poirier's avatar Mathieu Poirier Committed by Arnaldo Carvalho de Melo
Browse files

perf tools: Make coresight PMU listable 



Adding the required mechanic allowing 'perf list pmu' to discover
coresight ETM/PTM tracers.

Signed-off-by: default avatarMathieu Poirier <mathieu.poirier@linaro.org>
Acked-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
Acked-by: default avatarJiri 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: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 08d5204a

MAINTAINERS

+1 −0
Original line number Diff line number Diff line
@@ -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 <rpurdie@rpsys.net>

tools/perf/arch/arm/util/Build

+2 −0
Original line number Diff line number Diff line
@@ -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

tools/perf/arch/arm/util/pmu.c

0 → 100644
+34 −0
Original line number Diff line number Diff line 
/*

 * Copyright(C) 2015 Linaro Limited. All rights reserved.

 * Author: Mathieu Poirier <mathieu.poirier@linaro.org>

 *

 * 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 <http://www.gnu.org/licenses/>.

 */



#include <string.h>

#include <linux/coresight-pmu.h>

#include <linux/perf_event.h>



#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;

}

tools/perf/arch/arm64/util/Build

+2 −0
Original line number Diff line number Diff line 
libperf-$(CONFIG_DWARF)     += dwarf-regs.o

libperf-$(CONFIG_LOCAL_LIBUNWIND) += unwind-libunwind.o



libperf-$(CONFIG_AUXTRACE) += ../../arm/util/pmu.o