Commit-ID: 7e21b0d579a481e2e7064c6383d5873d841777a8
Gitweb: http://git.kernel.org/tip/7e21b0d579a481e2e7064c6383d5873d841777a8
Author: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
AuthorDate: Fri, 16 Sep 2016 09:49:59 -0600
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Thu, 22 Sep 2016 12:19:35 -0300
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@xxxxxxxxxx>
Acked-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Acked-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Link: http://lkml.kernel.org/r/1474041004-13956-3-git-send-email-mathieu.poirier@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
MAINTAINERS | 1 +
tools/perf/arch/arm/util/Build | 2 ++
.../perf/arch/arm/util/pmu.c | 26 ++++++++++++----------
tools/perf/arch/arm64/util/Build | 2 ++
4 files changed, 19 insertions(+), 12 deletions(-)
diff --git a/MAINTAINERS b/MAINTAINERS
index db814a8..7407fe7 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 <rpurdie@xxxxxxxxx>
diff --git a/tools/perf/arch/arm/util/Build b/tools/perf/arch/arm/util/Build
index f98da17..4093fd1 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/drivers/hwtracing/coresight/coresight-etm-perf.h b/tools/perf/arch/arm/util/pmu.c
similarity index 66%
copy from drivers/hwtracing/coresight/coresight-etm-perf.h
copy to tools/perf/arch/arm/util/pmu.c
index 87f5a13..af9fb66 100644
--- a/drivers/hwtracing/coresight/coresight-etm-perf.h
+++ b/tools/perf/arch/arm/util/pmu.c
@@ -15,18 +15,20 @@
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
-#ifndef _CORESIGHT_ETM_PERF_H
-#define _CORESIGHT_ETM_PERF_H
+#include <string.h>
+#include <linux/coresight-pmu.h>
+#include <linux/perf_event.h>
-struct coresight_device;
-
-#ifdef CONFIG_CORESIGHT
-int etm_perf_symlink(struct coresight_device *csdev, bool link);
-
-#else
-static inline int etm_perf_symlink(struct coresight_device *csdev, bool link)
-{ return -EINVAL; }
-
-#endif /* CONFIG_CORESIGHT */
+#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 02f41db..3876dd0 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
--
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