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-Where: /sys/bus/event_source/devices/<dev>/format
-Date: January 2012
-Kernel Version: 3.3
-Contact: Jiri Olsa <jolsa@redhat.com>
-Description:
- Attribute group to describe the magic bits that go into
- perf_event_attr::config[012] for a particular pmu.
- Each attribute of this group defines the 'hardware' bitmask
- we want to export, so that userspace can deal with sane
- name/value pairs.
-
- Example: 'config1:1,6-10,44'
- Defines contents of attribute that occupies bits 1,6-10,44 of
- perf_event_attr::config1.