1 files changed, 32 insertions, 0 deletions
diff --git a/trappy/idle.py b/trappy/idle.py
new file mode 100644
index 0000000..a2c5069
--- /dev/null
+++ b/trappy/idle.py
@@ -0,0 +1,32 @@
+#    Copyright 2016-2017 ARM Limited
+#
+# 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.
+#
+
+from trappy.base import Base
+from trappy.dynamic import register_ftrace_parser
+
+class CpuIdle(Base):
+    """Parse cpu_idle"""
+
+    unique_word = "cpu_idle"
+    pivot = "cpu_id"
+
+    def finalize_object(self):
+        # The trace contains "4294967295" instead of "-1" when exiting an idle
+        # state.
+        uint32_max = (2 ** 32) - 1
+        self.data_frame.replace(uint32_max, -1, inplace=True)
+        super(CpuIdle, self).finalize_object()
+
+register_ftrace_parser(CpuIdle)