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#!/usr/bin/python
#
# Copyright (C) 2015 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
def gen_event_type_entry_str(event_type_name, event_type, event_config):
"""
return string like:
{"cpu-cycles", PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES},
"""
return '{"%s", %s, %s},\n' % (event_type_name, event_type, event_config)
def gen_hardware_events():
hardware_configs = ["cpu-cycles",
"instructions",
"cache-references",
"cache-misses",
"branch-instructions",
"branch-misses",
"bus-cycles",
"stalled-cycles-frontend",
"stalled-cycles-backend",
]
generated_str = ""
for config in hardware_configs:
event_type_name = config
event_config = "PERF_COUNT_HW_" + config.replace('-', '_').upper()
generated_str += gen_event_type_entry_str(
event_type_name, "PERF_TYPE_HARDWARE", event_config)
return generated_str
def gen_software_events():
software_configs = ["cpu-clock",
"task-clock",
"page-faults",
"context-switches",
"cpu-migrations",
["minor-faults", "PERF_COUNT_SW_PAGE_FAULTS_MIN"],
["major-faults", "PERF_COUNT_SW_PAGE_FAULTS_MAJ"],
"alignment-faults",
"emulation-faults",
]
generated_str = ""
for config in software_configs:
if isinstance(config, list):
event_type_name = config[0]
event_config = config[1]
else:
event_type_name = config
event_config = "PERF_COUNT_SW_" + config.replace('-', '_').upper()
generated_str += gen_event_type_entry_str(
event_type_name, "PERF_TYPE_SOFTWARE", event_config)
return generated_str
def gen_hw_cache_events():
hw_cache_types = [["L1-dcache", "PERF_COUNT_HW_CACHE_L1D"],
["L1-icache", "PERF_COUNT_HW_CACHE_L1I"],
["LLC", "PERF_COUNT_HW_CACHE_LL"],
["dTLB", "PERF_COUNT_HW_CACHE_DTLB"],
["iTLB", "PERF_COUNT_HW_CACHE_ITLB"],
["branch", "PERF_COUNT_HW_CACHE_BPU"],
["node", "PERF_COUNT_HW_CACHE_NODE"],
]
hw_cache_ops = [["loads", "load", "PERF_COUNT_HW_CACHE_OP_READ"],
["stores", "store", "PERF_COUNT_HW_CACHE_OP_WRITE"],
["prefetches", "prefetch",
"PERF_COUNT_HW_CACHE_OP_PREFETCH"],
]
hw_cache_op_results = [["accesses", "PERF_COUNT_HW_CACHE_RESULT_ACCESS"],
["misses", "PERF_COUNT_HW_CACHE_RESULT_MISS"],
]
generated_str = ""
for (type_name, type_config) in hw_cache_types:
for (op_name_access, op_name_miss, op_config) in hw_cache_ops:
for (result_name, result_config) in hw_cache_op_results:
if result_name == "accesses":
event_type_name = type_name + '-' + op_name_access
else:
event_type_name = type_name + '-' + \
op_name_miss + '-' + result_name
event_config = "((%s) | (%s << 8) | (%s << 16))" % (
type_config, op_config, result_config)
generated_str += gen_event_type_entry_str(
event_type_name, "PERF_TYPE_HW_CACHE", event_config)
return generated_str
def gen_events():
generated_str = "// This file is auto-generated by generate-event_table.py.\n\n"
generated_str += gen_hardware_events() + '\n'
generated_str += gen_software_events() + '\n'
generated_str += gen_hw_cache_events() + '\n'
return generated_str
generated_str = gen_events()
fh = open('event_type_table.h', 'w')
fh.write(generated_str)
fh.close()
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