linux-kernel - Re: [PATCH] arm/arm64: dts: Drop "arm,armv8-pmuv3" compatible usage

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Date: Mon, 15 Apr 2024 09:57:45 +0100
From: Sudeep Holla <sudeep.holla@....com>
To: Rob Herring <robh@...nel.org>
Cc: soc@...nel.org, Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Sudeep Holla <sudeep.holla@....com>,
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Subject: Re: [PATCH] arm/arm64: dts: Drop "arm,armv8-pmuv3" compatible usage

On Fri, Apr 12, 2024 at 05:28:51PM -0500, Rob Herring wrote:
> The "arm,armv8-pmuv3" compatible is intended only for s/w models. Primarily,
> it doesn't provide any detail on uarch specific events.
> 
> There's still remaining cases for CPUs without any corresponding PMU
> definition and for big.LITTLE systems which only have a single PMU node
> (there should be one per core type).
> 
> Signed-off-by: Rob Herring <robh@...nel.org>
> ---
> SoC Maintainers, Can you please apply this directly.
> ---
>  arch/arm/boot/dts/broadcom/bcm2711.dtsi              | 4 ++--
>  arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi    | 2 +-
>  arch/arm64/boot/dts/amazon/alpine-v2.dtsi            | 2 +-
>  arch/arm64/boot/dts/apm/apm-storm.dtsi               | 2 +-
>  arch/arm64/boot/dts/arm/vexpress-v2f-1xv7-ca53x2.dts | 2 +-
>  arch/arm64/boot/dts/broadcom/northstar2/ns2.dtsi     | 2 +-
>  arch/arm64/boot/dts/broadcom/stingray/stingray.dtsi  | 2 +-
>  arch/arm64/boot/dts/cavium/thunder-88xx.dtsi         | 2 +-
>  arch/arm64/boot/dts/cavium/thunder2-99xx.dtsi        | 2 +-
>  arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi       | 2 +-
>  arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi       | 2 +-
>  arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi       | 7 +++++++
>  arch/arm64/boot/dts/freescale/fsl-ls2088a.dtsi       | 7 +++++++
>  arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi       | 5 -----
>  arch/arm64/boot/dts/freescale/imx8dxl.dtsi           | 2 +-
>  arch/arm64/boot/dts/intel/keembay-soc.dtsi           | 2 +-
>  arch/arm64/boot/dts/intel/socfpga_agilex.dtsi        | 2 +-
>  arch/arm64/boot/dts/marvell/ac5-98dx25xx.dtsi        | 2 +-
>  arch/arm64/boot/dts/marvell/armada-37xx.dtsi         | 2 +-
>  arch/arm64/boot/dts/mediatek/mt8516.dtsi             | 2 +-
>  arch/arm64/boot/dts/nvidia/tegra210.dtsi             | 2 +-
>  arch/arm64/boot/dts/qcom/qcm2290.dtsi                | 2 +-
>  arch/arm64/boot/dts/qcom/qdu1000.dtsi                | 2 +-
>  arch/arm64/boot/dts/qcom/sdm630.dtsi                 | 2 +-
>  arch/arm64/boot/dts/qcom/sdx75.dtsi                  | 2 +-
>  arch/arm64/boot/dts/realtek/rtd16xx.dtsi             | 2 +-
>  arch/arm64/boot/dts/rockchip/rk3368.dtsi             | 2 +-
>  arch/arm64/boot/dts/sprd/sc9860.dtsi                 | 2 +-
>  arch/arm64/boot/dts/sprd/sc9863a.dtsi                | 2 +-
>  arch/arm64/boot/dts/synaptics/berlin4ct.dtsi         | 2 +-
>  arch/arm64/boot/dts/tesla/fsd.dtsi                   | 2 +-
>  arch/arm64/boot/dts/xilinx/zynqmp.dtsi               | 2 +-
>  32 files changed, 44 insertions(+), 35 deletions(-)
>

[...]

> diff --git a/arch/arm64/boot/dts/arm/vexpress-v2f-1xv7-ca53x2.dts b/arch/arm64/boot/dts/arm/vexpress-v2f-1xv7-ca53x2.dts
> index 8db4243a4947..9115c99d0dc0 100644
> --- a/arch/arm64/boot/dts/arm/vexpress-v2f-1xv7-ca53x2.dts
> +++ b/arch/arm64/boot/dts/arm/vexpress-v2f-1xv7-ca53x2.dts
> @@ -102,7 +102,7 @@ timer {
>  	};
>
>  	pmu {
> -		compatible = "arm,armv8-pmuv3";
> +		compatible = "arm,cortex-a53-pmu";
>  		interrupts = <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>,
>  			     <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
>  	};

(For vexpress related change)

Acked-by: Sudeep Holla <sudeep.holla@....com>

--
Regards,
Sudeep