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                  |  2 +
 tools/perf/Makefile.perf               | 23 +++++++---
 tools/perf/pmu-events/Build            | 62 ++++++++++++++++++++++++--
 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, 193 insertions(+), 9 deletions(-)
 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 f5b81d439387..c9a8da5bfc56 100644
--- a/tools/perf/.gitignore
+++ b/tools/perf/.gitignore
@@ -39,6 +39,8 @@ trace/beauty/generated/
 pmu-events/pmu-events.c
 pmu-events/jevents
 pmu-events/metric_test.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
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 9dd2e8d3f3c9..75b278497526 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -1265,9 +1265,26 @@ endif # CONFIG_PERF_BPF_SKEL
 bpf-skel-clean:
 	$(call QUIET_CLEAN, bpf-skel) $(RM) -r $(SKEL_TMP_OUT) $(SKELETONS) $(SKEL_OUT)/vmlinux.h
 
+pmu-events-clean:
+ifeq ($(OUTPUT),)
+	$(call QUIET_CLEAN, pmu-events) $(RM) \
+		pmu-events/pmu-events.c \
+		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
+	$(call QUIET_CLEAN, pmu-events) $(RM) -r $(OUTPUT)pmu-events/arch \
+		$(OUTPUT)pmu-events/pmu-events.c \
+		$(OUTPUT)pmu-events/metric_test.log \
+		$(OUTPUT)pmu-events/test-empty-pmu-events.c \
+		$(OUTPUT)pmu-events/empty-pmu-events.log
+endif
+
 clean:: $(LIBAPI)-clean $(LIBBPF)-clean $(LIBSUBCMD)-clean $(LIBSYMBOL)-clean $(LIBPERF)-clean \
 		arm64-sysreg-defs-clean fixdep-clean python-clean bpf-skel-clean \
-		tests-coresight-targets-clean
+		tests-coresight-targets-clean pmu-events-clean
 	$(call QUIET_CLEAN, core-objs)  $(RM) $(LIBPERF_A) $(OUTPUT)perf-archive \
 		$(OUTPUT)perf-iostat $(LANG_BINDINGS)
 	$(Q)find $(or $(OUTPUT),.) -name '*.o' -delete -o -name '*.a' -delete -o \
@@ -1280,10 +1297,6 @@ clean:: $(LIBAPI)-clean $(LIBBPF)-clean $(LIBSUBCMD)-clean $(LIBSYMBOL)-clean $(
 		$(OUTPUT)FEATURE-DUMP $(OUTPUT)util/*-bison* $(OUTPUT)util/*-flex* \
 		$(OUTPUT)util/intel-pt-decoder/inat-tables.c \
 		$(OUTPUT)tests/llvm-src-{base,kbuild,prologue,relocation}.c \
-		$(OUTPUT)pmu-events/pmu-events.c \
-		$(OUTPUT)pmu-events/test-empty-pmu-events.c \
-		$(OUTPUT)pmu-events/empty-pmu-events.log \
-		$(OUTPUT)pmu-events/metric_test.log \
 		$(OUTPUT)$(fadvise_advice_array) \
 		$(OUTPUT)$(fsconfig_arrays) \
 		$(OUTPUT)$(fsmount_arrays) \
diff --git a/tools/perf/pmu-events/Build b/tools/perf/pmu-events/Build
index d941bc9d16e9..d89275c4f485 100644
--- a/tools/perf/pmu-events/Build
+++ b/tools/perf/pmu-events/Build
@@ -1,7 +1,6 @@
 pmu-events-y	+= pmu-events.o
 JDIR		=  pmu-events/arch/$(SRCARCH)
-JSON		=  $(shell [ -d $(JDIR) ] &&				\
-			find $(JDIR) -name '*.json' -o -name 'mapfile.csv')
+JSON		=  $(shell find pmu-events/arch -name *.json -o -name *.csv)
 JDIR_TEST	=  pmu-events/arch/test
 JSON_TEST	=  $(shell [ -d $(JDIR_TEST) ] &&			\
 			find $(JDIR_TEST) -name '*.json')
@@ -29,6 +28,61 @@ $(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)
+	$(Q)$(call echo-cmd,gen)cp $< $@
+
+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)) \
+            $(ZEN_METRICS) $(ZEN_METRICGROUPS) \
+            $(ARM_METRICS) $(ARM_METRICGROUPS) \
+            $(INTEL_METRICS) $(INTEL_METRICGROUPS)
+
 $(METRIC_TEST_LOG): $(METRIC_TEST_PY) $(METRIC_PY)
 	$(call rule_mkdir)
 	$(Q)$(call echo-cmd,test)$(PYTHON) $< 2> $@ || (cat $@ && false)
@@ -41,9 +95,9 @@ $(EMPTY_PMU_EVENTS_TEST_LOG): $(EMPTY_PMU_EVENTS_C) $(TEST_EMPTY_PMU_EVENTS_C)
 	$(call rule_mkdir)
 	$(Q)$(call echo-cmd,test)diff -u $^ 2> $@ || (cat $@ && false)
 
-$(PMU_EVENTS_C): $(JSON) $(JSON_TEST) $(JEVENTS_PY) $(METRIC_PY) $(METRIC_TEST_LOG) $(EMPTY_PMU_EVENTS_TEST_LOG)
+$(PMU_EVENTS_C): $(GEN_JSON) $(JSON_TEST) $(JEVENTS_PY) $(METRIC_PY) $(METRIC_TEST_LOG) $(EMPTY_PMU_EVENTS_TEST_LOG)
 	$(call rule_mkdir)
-	$(Q)$(call echo-cmd,gen)$(PYTHON) $(JEVENTS_PY) $(JEVENTS_ARCH) $(JEVENTS_MODEL) pmu-events/arch $@
+	$(Q)$(call echo-cmd,gen)$(PYTHON) $(JEVENTS_PY) $(JEVENTS_ARCH) $(JEVENTS_MODEL) $(OUTPUT)pmu-events/arch $@
 endif
 
 # pmu-events.c file is generated in the OUTPUT directory so it needs a
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()
-- 
2.46.1.824.gd892dcdcdd-goog