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>;
};
Tested-by: Vince Weaver <[email protected]>
Vince
