Being able to set the cpu mask per event was discussed in the context
of a sysfs event.cpus file is discussed here:
https://lore.kernel.org/lkml/CAP-5=fXXuWchzUK0n5KTH8kamr=DQoEni+bUoo8f-4j8Y+eMBg@mail.gmail.com/
Ultimately Kan preferred to have multiple PMUs with a cpumask each
rather than an event.cpus file per event. It is still useful to have
the cpu event term and so the sysfs part of the original patch series
is dropped.

v3: Drop sysfs event.cpus file support patch from series.  Reference
    to using cpu to modify uncore events is dropped from the commit
    message. Reference counting issues on the cpumap are addressed.
v2: Add support for multiple cpu terms on an event that are
    merged. For example, an event of "l1d-misses/cpu=4,cpu=5/" will
    now be opened on both CPU 4 and 5 rather than just CPU 4.

Ian Rogers (3):
  libperf cpumap: Add ability to create CPU from a single CPU number
  perf parse-events: Set is_pmu_core for legacy hardware events
  perf parse-events: Add "cpu" term to set the CPU an event is recorded
    on

 tools/lib/perf/cpumap.c                |  10 +++
 tools/lib/perf/include/perf/cpumap.h   |   2 +
 tools/perf/Documentation/perf-list.txt |   9 +++
 tools/perf/tests/event_update.c        |   1 +
 tools/perf/util/evsel_config.h         |   1 +
 tools/perf/util/parse-events.c         | 108 +++++++++++++++++++------
 tools/perf/util/parse-events.h         |   3 +-
 tools/perf/util/parse-events.l         |   1 +
 tools/perf/util/pmu.c                  |   1 +
 9 files changed, 110 insertions(+), 26 deletions(-)

-- 
2.46.0.662.g92d0881bb0-goog