On Thu, 17 May 2018, Stefan Wahren wrote:

> 
> > Eric Anholt <e...@anholt.net> hat am 17. Mai 2018 um 15:17 geschrieben:
> > 
> > 
> > The a53 and a7 counters seem to match up, so we advertise a7 so that
> > arm32 can probe.

so how closely did you look at the a53/a7 differences?  I see some major 
differences, especially with the CPU_CYCLES event (0xff vs 0x11).

The proper fix here might be to add a cortex-a53 PMU entry to the armv7 
code rather than trying to treat it as a cortex-a7.

Vince

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