[PATCH v3 2/2] arm64: dts: rockchip: support the pmu node for rk3399

[Caesar Wang]

On 2016年09月06日 06:27, Heiko Stuebner wrote:
> Am Dienstag, 6. September 2016, 02:17:15 CEST schrieb Caesar Wang:
>> This patch adds to enable the ARM Performance Monitor Units for rk3399.
>> ARM cores often have a PMU for counting cpu and cache events like cache
>> misses and hits.
>>
>> Also, as the Marc posted the patches [0] to support Partitioning per-cpu
>> interrupts. Let's add this patch to match it on rk3399 SoCs.
>>
>> [0]:
>> https://lkml.org/lkml/2016/4/11/182
>>
>> Signed-off-by: Caesar Wang <wxt at rock-chips.com>
>> Acked-by: Mark Rutland <mark.rutland at arm.com>
>> Cc: Heiko Stuebner <heiko at sntech.de>
>> Cc: Marc Zyngier <marc.zyngier at arm.com>
>> CC: linux-arm-kernel at lists.infradead.org
> I've applied this one but did some corrections [0]:
>
> - ppi-partitions is supposed to be a subnode of the gic, that is why the code
> also start search for it starting from the gic node - I've moved it
> - I've renamed the phandles taking part0/part1 from the example feels a bit to
> generic, so it's now ppi_cluster0 and ppi_cluster1 matching the cpu-clusters
>
> I've gave this a spin on my rk3399evb and the ppi-partitions got recognized
> as well as the pmu instances got created, but please also double check again.


Yup, thanks the fixes.

>
>
> Thanks
> Heiko
>
>
> [0] https://git.kernel.org/cgit/linux/kernel/git/mmind/linux-rockchip.git/
> commit/?id=48120b1af6f072bfd6b075bf9be560ad6fda2faa
>
>
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-- 
caesar wang | software engineer | wxt at rock-chip.com