On 25-03-20 09:36:37, Marc Zyngier wrote:
> Peter Chen <peter.chen@xxxxxxxxxxx> wrote:
> >
> > + pmu-a520 {
> > + compatible = "arm,cortex-a520-pmu";
> > + interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_LOW &ppi_partition0>;
> > + };
> > +
> > + pmu-a720 {
> > + compatible = "arm,cortex-a720-pmu";
> > + interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_LOW &ppi_partition1>;
> > + };
> > +
> > + pmu-spe {
> > + compatible = "arm,statistical-profiling-extension-v1";
> > + interrupts = <GIC_PPI 5 IRQ_TYPE_LEVEL_LOW 0>;
> > + };
>
> SPE should follow the same model as the PMU, as each CPU has its own
> SPE implementation, exposing different micro-architectural details.
>
Hi Marc,
Thanks for your reply. But there is only one compatible string
"statistical-profiling-extension-v1" at drivers/perf/arm_spe_pmu.c,
how could differentiate pmu-spe-a720 and pmu-spe-a520, do I need
to change arm_spe_pmu.c as well?
--
Best regards,
Peter
