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

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Date:   Tue, 06 Sep 2016 07:27:10 +0800
From:   Caesar Wang <wxt@...k-chips.com>
To:     Heiko Stuebner <heiko@...ech.de>
CC:     Caesar Wang <wxt@...k-chips.com>,
        Mark Rutland <mark.rutland@....com>,
        devicetree@...r.kernel.org,
        Brian Norris <briannorris@...omium.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Xing Zheng <zhengxing@...k-chips.com>,
        Marc Zyngier <marc.zyngier@....com>,
        Jianqun Xu <jay.xu@...k-chips.com>,
        Shawn Lin <shawn.lin@...k-chips.com>,
        Elaine Zhang <zhangqing@...k-chips.com>,
        Will Deacon <will.deacon@....com>,
        Douglas Anderson <dianders@...omium.org>,
        linux-kernel@...r.kernel.org, linux-rockchip@...ts.infradead.org,
        Rob Herring <robh+dt@...nel.org>,
        David Wu <david.wu@...k-chips.com>, sonnyrao@...omium.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 2/2] arm64: dts: rockchip: support the pmu node for
 rk3399

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@...k-chips.com>
>> Acked-by: Mark Rutland <mark.rutland@....com>
>> Cc: Heiko Stuebner <heiko@...ech.de>
>> Cc: Marc Zyngier <marc.zyngier@....com>
>> CC: linux-arm-kernel@...ts.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
>
>
> _______________________________________________
> Linux-rockchip mailing list
> Linux-rockchip@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-rockchip

-- 
caesar wang | software engineer | wxt@...k-chip.com

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