Multiple events in a group can belong to one or more pmus, however
there are some limitations to it. One of the limitation is, perf
doesn't allow creating a group of events from different hw pmus.
Write a simple test to create various combinations of hw, sw and
uncore pmu events and verify group creation succeeds or fails as
expected.

v1: https://lore.kernel.org/r/20221125032018.962-1-ravi.bangoria@amd.com
v1->v2:
 - #1 is new. It makes pmus list variable non-static and moves
   it to a new file.
 - Instead of hardcoded uncore pmu configuration, iterate over
   pmus list and use whichever first uncore pmu is available.

Ravi Bangoria (2):
  perf tool: Move pmus list variable to new a file
  perf test: Add event group test

 tools/perf/tests/Build          |   1 +
 tools/perf/tests/builtin-test.c |   1 +
 tools/perf/tests/event_groups.c | 109 ++++++++++++++++++++++++++++++++
 tools/perf/tests/tests.h        |   1 +
 tools/perf/util/Build           |   1 +
 tools/perf/util/pmu.c           |   2 +-
 tools/perf/util/pmus.c          |   5 ++
 tools/perf/util/pmus.h          |   9 +++
 8 files changed, 128 insertions(+), 1 deletion(-)
 create mode 100644 tools/perf/tests/event_groups.c
 create mode 100644 tools/perf/util/pmus.c
 create mode 100644 tools/perf/util/pmus.h

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2.38.1