Messages in this thread | | | From | Vince Weaver <> | Date | Thu, 17 May 2018 12:34:56 -0400 (EDT) | Subject | Re: [PATCH] arm: bcm2835: Add the PMU to the devicetree. |
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On Thu, 17 May 2018, Stefan Wahren wrote:
> > > Eric Anholt <eric@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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