Pull arch/tile updates from Chris Metcalf:
 "These fix a few stray build issues seen in linux-next, and also add
  the minimal required support for perf to tilegx"

* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  arch/tile: remove unused variable 'devcap'
  tile: Fix vDSO compilation issue with allyesconfig
  perf tools: Allow building for tile
  tile/perf: Support perf_events on tilegx and tilepro
  tile: Enable NMIs on return from handle_nmi() without errors
  tile: Add support for handling PMC hardware
  tile: don't use __get_cpu_var() with structure-typed arguments
  tile: avoid overflow in ns2cycles