Vince Weaver <vincent.wea...@maine.edu> writes: > 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).
I'm a bit lost in the code, but it seemed like the 0xff was a placeholder for a bit of special behavior, but that the cpu_cycles -> ARMV7_PERFCTR_CLOCK_CYCLES mapping got you that same value in the end.
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