The Cortex-A55/A75/A76 use some implementation defined perf events.
Add the support.

Jisheng Zhang (3):
  arm64: perf: add support for Cortex-A55
  arm64: perf: add support for Cortex-A75
  arm64: perf: add support for Cortex-A76

 arch/arm64/kernel/perf_event.c | 49 +++++++++++++++++++++++++++++++---
 1 file changed, 45 insertions(+), 4 deletions(-)

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2.27.0

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