** Description changed:

  [Impact]
  ThunderX2 vendor pmu events are not supported.
  
  [Test Case]
  Successful output:
  $ sudo perf list | grep thunderx2
  thunderx2 imp def:
  $
  
  [Regression Risk]
  The code changes are restricted to the perf utility, so there's negligible 
risk to the kernel itself. All patches are clean cherry-picks except 1 where a 
hunk is dropped that was updating an API in code that didn't exist yet.
+ 
+ I've tested on Cavium Sabre (a thunderx2 system), and smoke tested perf
+ commands for regression on x86 (Dell XPS13 9350).

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https://bugs.launchpad.net/bugs/1747523

Title:
  support thunderx2 vendor pmu events

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