Messages in this thread | | | Subject | Re: [PATCH v3 0/5] | From | Marc Zyngier <> | Date | Fri, 18 May 2018 17:41:09 +0100 |
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[/me beats himself for not writing a subject line...]
On 18/05/18 17:29, Vince Weaver wrote: > On Fri, 18 May 2018, Marc Zyngier wrote: > >> There is also the case of people natively running 32bit kernels on >> 64bit HW and trying to upstream unspeakable hacks, hoping that the >> stars will align and that they'll win the lottery (see [1]). > > I've tested these patches on a Raspberry Pi 3B running a 32-bit upstream > (4.17-rc5-git) kernel and they work. > > [ 0.472906] hw perfevents: enabled with armv8_cortex_a53 PMU driver, 7 counters available > > I only needed to add this to the devicetree > > arm-pmu { > compatible = "arm,cortex-a53-pmu"; > interrupt-parent = <&local_intc>; > interrupts = <9 IRQ_TYPE_LEVEL_HIGH>; > };
That's definitely the sensible thing to have on such hardware. Why isn't it in the upstream DT already, irrespective of the state of the kernel support?
> Tested-by: Vince Weaver <vincent.weaver@maine.edu>
Thanks a lot for testing.
M. -- Jazz is not dead. It just smells funny...
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