[PATCH v6 11/12] perf jevents: Build support for generating metrics from python

[Ian Rogers <irogers@google.com>]

Generate extra-metrics.json and extra-metricgroups.json from python
architecture specific scripts. The metrics themselves will be added in
later patches.

If a build takes place in tools/perf/ then extra-metrics.json and
extra-metricgroups.json are generated in that directory and so added
to .gitignore. If there is an OUTPUT directory then the
tools/perf/pmu-events/arch files are copied to it so the generated
extra-metrics.json and extra-metricgroups.json can be added/generated
there.

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/.gitignore                  |  5 +++
 tools/perf/Makefile.perf               |  2 +
 tools/perf/pmu-events/Build            | 51 +++++++++++++++++++++++++-
 tools/perf/pmu-events/amd_metrics.py   | 38 +++++++++++++++++++
 tools/perf/pmu-events/arm64_metrics.py | 39 ++++++++++++++++++++
 tools/perf/pmu-events/intel_metrics.py | 38 +++++++++++++++++++
 6 files changed, 172 insertions(+), 1 deletion(-)
 create mode 100755 tools/perf/pmu-events/amd_metrics.py
 create mode 100755 tools/perf/pmu-events/arm64_metrics.py
 create mode 100755 tools/perf/pmu-events/intel_metrics.py

diff --git a/tools/perf/.gitignore b/tools/perf/.gitignore
index b64302a76144..133e343bf44e 100644
--- a/tools/perf/.gitignore
+++ b/tools/perf/.gitignore
@@ -42,6 +42,11 @@ pmu-events/metric_test.log
 pmu-events/empty-pmu-events.log
 pmu-events/test-empty-pmu-events.c
 *.shellcheck_log
+pmu-events/arch/**/extra-metrics.json
+pmu-events/arch/**/extra-metricgroups.json
+tests/shell/*.shellcheck_log
+tests/shell/coresight/*.shellcheck_log
+tests/shell/lib/*.shellcheck_log
 feature/
 libapi/
 libbpf/
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index cc1635335586..96ad9ea60f68 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -1279,6 +1279,8 @@ ifeq ($(OUTPUT),)
 		pmu-events/metric_test.log \
 		pmu-events/test-empty-pmu-events.c \
 		pmu-events/empty-pmu-events.log
+	$(Q)find pmu-events/arch -name 'extra-metrics.json' -delete -o \
+		-name 'extra-metricgroups.json' -delete
 else # When an OUTPUT directory is present, clean up the copied pmu-events/arch directory.
 	$(call QUIET_CLEAN, pmu-events) $(RM) -r $(OUTPUT)pmu-events/arch \
 		$(OUTPUT)pmu-events/pmu-events.c \
diff --git a/tools/perf/pmu-events/Build b/tools/perf/pmu-events/Build
index 4ebf37c14978..162d5f74cbe8 100644
--- a/tools/perf/pmu-events/Build
+++ b/tools/perf/pmu-events/Build
@@ -30,6 +30,10 @@ $(PMU_EVENTS_C): $(EMPTY_PMU_EVENTS_C)
 	$(call rule_mkdir)
 	$(Q)$(call echo-cmd,gen)cp $< $@
 else
+# Extract the model from a extra-metrics.json or extra-metricgroups.json path
+model_name = $(shell echo $(1)|sed -e 's@.\+/\(.*\)/extra-metric.*\.json@\1@')
+vendor_name = $(shell echo $(1)|sed -e 's@.\+/\(.*\)/[^/]*/extra-metric.*\.json@\1@')
+
 # Copy checked-in json for generation.
 $(OUTPUT)pmu-events/arch/%: pmu-events/arch/%
 	$(call rule_mkdir)
@@ -39,7 +43,52 @@ $(LEGACY_CACHE_JSON): $(LEGACY_CACHE_PY)
 	$(call rule_mkdir)
 	$(Q)$(call echo-cmd,gen)$(PYTHON) $(LEGACY_CACHE_PY) > $@
 
-GEN_JSON = $(patsubst %,$(OUTPUT)%,$(JSON)) $(LEGACY_CACHE_JSON)
+GEN_METRIC_DEPS := pmu-events/metric.py
+
+# Generate AMD Json
+ZENS = $(shell ls -d pmu-events/arch/x86/amdzen*)
+ZEN_METRICS = $(foreach x,$(ZENS),$(OUTPUT)$(x)/extra-metrics.json)
+ZEN_METRICGROUPS = $(foreach x,$(ZENS),$(OUTPUT)$(x)/extra-metricgroups.json)
+
+$(ZEN_METRICS): pmu-events/amd_metrics.py $(GEN_METRIC_DEPS)
+	$(call rule_mkdir)
+	$(Q)$(call echo-cmd,gen)$(PYTHON) $< $(call model_name,$@) arch > $@
+
+$(ZEN_METRICGROUPS): pmu-events/amd_metrics.py $(GEN_METRIC_DEPS)
+	$(call rule_mkdir)
+	$(Q)$(call echo-cmd,gen)$(PYTHON) $< -metricgroups $(call model_name,$@) arch > $@
+
+# Generate ARM Json
+ARMS = $(shell ls -d pmu-events/arch/arm64/arm/*)
+ARM_METRICS = $(foreach x,$(ARMS),$(OUTPUT)$(x)/extra-metrics.json)
+ARM_METRICGROUPS = $(foreach x,$(ARMS),$(OUTPUT)$(x)/extra-metricgroups.json)
+
+$(ARM_METRICS): pmu-events/arm64_metrics.py $(GEN_METRIC_DEPS)
+	$(call rule_mkdir)
+	$(Q)$(call echo-cmd,gen)$(PYTHON) $< $(call vendor_name,$@) $(call model_name,$@) arch > $@
+
+$(ARM_METRICGROUPS): pmu-events/arm64_metrics.py $(GEN_METRIC_DEPS)
+	$(call rule_mkdir)
+	$(Q)$(call echo-cmd,gen)$(PYTHON) $< -metricgroups $(call vendor_name,$@) $(call model_name,$@) arch > $@
+
+# Generate Intel Json
+INTELS = $(shell ls -d pmu-events/arch/x86/*|grep -v amdzen|grep -v mapfile.csv)
+INTEL_METRICS = $(foreach x,$(INTELS),$(OUTPUT)$(x)/extra-metrics.json)
+INTEL_METRICGROUPS = $(foreach x,$(INTELS),$(OUTPUT)$(x)/extra-metricgroups.json)
+
+$(INTEL_METRICS): pmu-events/intel_metrics.py $(GEN_METRIC_DEPS)
+	$(call rule_mkdir)
+	$(Q)$(call echo-cmd,gen)$(PYTHON) $< $(call model_name,$@) arch > $@
+
+$(INTEL_METRICGROUPS): pmu-events/intel_metrics.py $(GEN_METRIC_DEPS)
+	$(call rule_mkdir)
+	$(Q)$(call echo-cmd,gen)$(PYTHON) $< -metricgroups $(call model_name,$@) arch > $@
+
+GEN_JSON = $(patsubst %,$(OUTPUT)%,$(JSON)) \
+            $(LEGACY_CACHE_JSON) \
+            $(ZEN_METRICS) $(ZEN_METRICGROUPS) \
+            $(ARM_METRICS) $(ARM_METRICGROUPS) \
+            $(INTEL_METRICS) $(INTEL_METRICGROUPS)
 
 $(METRIC_TEST_LOG): $(METRIC_TEST_PY) $(METRIC_PY)
 	$(call rule_mkdir)
diff --git a/tools/perf/pmu-events/amd_metrics.py b/tools/perf/pmu-events/amd_metrics.py
new file mode 100755
index 000000000000..7ab2ee4fdb17
--- /dev/null
+++ b/tools/perf/pmu-events/amd_metrics.py
@@ -0,0 +1,38 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+from metric import (JsonEncodeMetric, JsonEncodeMetricGroupDescriptions, MetricGroup)
+import argparse
+import json
+import os
+
+# Global command line arguments.
+_args = None
+
+def main() -> None:
+  global _args
+
+  def dir_path(path: str) -> str:
+    """Validate path is a directory for argparse."""
+    if os.path.isdir(path):
+      return path
+    raise argparse.ArgumentTypeError(f'\'{path}\' is not a valid directory')
+
+  parser = argparse.ArgumentParser(description="AMD perf json generator")
+  parser.add_argument("-metricgroups", help="Generate metricgroups data", action='store_true')
+  parser.add_argument("model", help="e.g. amdzen[123]")
+  parser.add_argument(
+      'events_path',
+      type=dir_path,
+      help='Root of tree containing architecture directories containing json files'
+  )
+  _args = parser.parse_args()
+
+  all_metrics = MetricGroup("",[])
+
+  if _args.metricgroups:
+    print(JsonEncodeMetricGroupDescriptions(all_metrics))
+  else:
+    print(JsonEncodeMetric(all_metrics))
+
+if __name__ == '__main__':
+  main()
diff --git a/tools/perf/pmu-events/arm64_metrics.py b/tools/perf/pmu-events/arm64_metrics.py
new file mode 100755
index 000000000000..a9f0e6bc751b
--- /dev/null
+++ b/tools/perf/pmu-events/arm64_metrics.py
@@ -0,0 +1,39 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+from metric import (JsonEncodeMetric, JsonEncodeMetricGroupDescriptions, MetricGroup)
+import argparse
+import json
+import os
+
+# Global command line arguments.
+_args = None
+
+def main() -> None:
+  global _args
+
+  def dir_path(path: str) -> str:
+    """Validate path is a directory for argparse."""
+    if os.path.isdir(path):
+      return path
+    raise argparse.ArgumentTypeError(f'\'{path}\' is not a valid directory')
+
+  parser = argparse.ArgumentParser(description="ARM perf json generator")
+  parser.add_argument("-metricgroups", help="Generate metricgroups data", action='store_true')
+  parser.add_argument("vendor", help="e.g. arm")
+  parser.add_argument("model", help="e.g. neoverse-n1")
+  parser.add_argument(
+      'events_path',
+      type=dir_path,
+      help='Root of tree containing architecture directories containing json files'
+  )
+  _args = parser.parse_args()
+
+  all_metrics = MetricGroup("",[])
+
+  if _args.metricgroups:
+    print(JsonEncodeMetricGroupDescriptions(all_metrics))
+  else:
+    print(JsonEncodeMetric(all_metrics))
+
+if __name__ == '__main__':
+  main()
diff --git a/tools/perf/pmu-events/intel_metrics.py b/tools/perf/pmu-events/intel_metrics.py
new file mode 100755
index 000000000000..f004c27640d2
--- /dev/null
+++ b/tools/perf/pmu-events/intel_metrics.py
@@ -0,0 +1,38 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+from metric import (JsonEncodeMetric, JsonEncodeMetricGroupDescriptions, MetricGroup)
+import argparse
+import json
+import os
+
+# Global command line arguments.
+_args = None
+
+def main() -> None:
+  global _args
+
+  def dir_path(path: str) -> str:
+    """Validate path is a directory for argparse."""
+    if os.path.isdir(path):
+      return path
+    raise argparse.ArgumentTypeError(f'\'{path}\' is not a valid directory')
+
+  parser = argparse.ArgumentParser(description="Intel perf json generator")
+  parser.add_argument("-metricgroups", help="Generate metricgroups data", action='store_true')
+  parser.add_argument("model", help="e.g. skylakex")
+  parser.add_argument(
+      'events_path',
+      type=dir_path,
+      help='Root of tree containing architecture directories containing json files'
+  )
+  _args = parser.parse_args()
+
+  all_metrics = MetricGroup("",[])
+
+  if _args.metricgroups:
+    print(JsonEncodeMetricGroupDescriptions(all_metrics))
+  else:
+    print(JsonEncodeMetric(all_metrics))
+
+if __name__ == '__main__':
+  main()
-- 
2.51.0.338.gd7d06c2dae-goog