linux-kernel - Re: [PATCH v1] arm64: dts: imx8m: add pmu node

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Message-ID: <20210308002748.GJ543@dragon>
Date:   Mon, 8 Mar 2021 08:27:49 +0800
From:   Shawn Guo <shawnguo@...nel.org>
To:     "Alice Guo (OSS)" <alice.guo@....nxp.com>
Cc:     robh+dt@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de,
        festevam@...il.com, linux-imx@....com, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1] arm64: dts: imx8m: add pmu node

On Tue, Feb 23, 2021 at 11:14:45AM +0800, Alice Guo (OSS) wrote:
> From: Alice Guo <alice.guo@....com>
> 
> Adding pmu node supports to use perf tool to monitor the CPU performance
> of the inmate cell when enabling Jailhouse and running dual Linux OS.
> 
> Signed-off-by: Alice Guo <alice.guo@....com>
> ---
>  arch/arm64/boot/dts/freescale/imx8mm-evk-inmate.dts | 7 +++++++

Upstream doesn't have this file.

Shawn

>  arch/arm64/boot/dts/freescale/imx8mn-evk-inmate.dts | 8 ++++++++
>  arch/arm64/boot/dts/freescale/imx8mp-evk-inmate.dts | 8 ++++++++
>  arch/arm64/boot/dts/freescale/imx8mq-evk-inmate.dts | 7 +++++++
>  4 files changed, 30 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk-inmate.dts b/arch/arm64/boot/dts/freescale/imx8mm-evk-inmate.dts
> index fe9d96131045..6afccc2c140e 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mm-evk-inmate.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mm-evk-inmate.dts
> @@ -48,6 +48,13 @@
>  		};
>  	};
> 
> +	pmu {
> +		compatible = "arm,armv8-pmuv3";
> +		interrupts = <GIC_PPI 7
> +			     (GIC_CPU_MASK_SIMPLE(6) | IRQ_TYPE_LEVEL_HIGH)>;
> +		interrupt-affinity = <&A53_2>, <&A53_3>;
> +	};
> +
>  	psci {
>  		compatible = "arm,psci-1.0";
>  		method = "smc";
> diff --git a/arch/arm64/boot/dts/freescale/imx8mn-evk-inmate.dts b/arch/arm64/boot/dts/freescale/imx8mn-evk-inmate.dts
> index 584c1fa19f56..f2434ad369dc 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mn-evk-inmate.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mn-evk-inmate.dts
> @@ -48,6 +48,14 @@
>  		};
>  	};
> 
> +	pmu {
> +		compatible = "arm,armv8-pmuv3";
> +		interrupt-parent = <&gic>;
> +		interrupts = <GIC_PPI 7
> +			     (GIC_CPU_MASK_SIMPLE(6) | IRQ_TYPE_LEVEL_HIGH)>;
> +		interrupt-affinity = <&A53_2>, <&A53_3>;
> +	};
> +
>  	psci {
>  		compatible = "arm,psci-1.0";
>  		method = "smc";
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk-inmate.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk-inmate.dts
> index 277ef70f2903..be538f510340 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp-evk-inmate.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mp-evk-inmate.dts
> @@ -48,6 +48,14 @@
>  		};
>  	};
> 
> +	pmu {
> +		compatible = "arm,armv8-pmuv3";
> +		interrupt-parent = <&gic>;
> +		interrupts = <GIC_PPI 7
> +			     (GIC_CPU_MASK_SIMPLE(6) | IRQ_TYPE_LEVEL_HIGH)>;
> +		interrupt-affinity = <&A53_2>, <&A53_3>;
> +	};
> +
>  	psci {
>  		compatible = "arm,psci-1.0";
>  		method = "smc";
> diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk-inmate.dts b/arch/arm64/boot/dts/freescale/imx8mq-evk-inmate.dts
> index b1db63cdb98c..57e0ab2bf4d3 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mq-evk-inmate.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mq-evk-inmate.dts
> @@ -48,6 +48,13 @@
>  		};
>  	};
> 
> +	pmu {
> +		compatible = "arm,cortex-a53-pmu";
> +		interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_HIGH>;
> +		interrupt-parent = <&gic>;
> +		interrupt-affinity = <&A53_2>, <&A53_3>;
> +	};
> +
>  	psci {
>  		compatible = "arm,psci-1.0";
>  		method = "smc";
> --
> 2.17.1
>