linux-kernel - Re: [PATCH 1/4] arm64: dts: qcom: sm6115-j606f: Add ramoops node

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Message-ID: <9554be2b-c80d-8c5b-48e3-2508a7b4ecd1@linaro.org>
Date:   Thu, 6 Apr 2023 20:54:09 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Konrad Dybcio <konrad.dybcio@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Kees Cook <keescook@...omium.org>,
        Tony Luck <tony.luck@...el.com>,
        "Guilherme G. Piccoli" <gpiccoli@...lia.com>
Cc:     Marijn Suijten <marijn.suijten@...ainline.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH 1/4] arm64: dts: qcom: sm6115-j606f: Add ramoops node

On 06/04/2023 18:25, Konrad Dybcio wrote:
> Add a ramoops node to enable retrieving crash logs.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
> ---
>   arch/arm64/boot/dts/qcom/sm6115p-lenovo-j606f.dts | 11 +++++++++++
>   1 file changed, 11 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm6115p-lenovo-j606f.dts b/arch/arm64/boot/dts/qcom/sm6115p-lenovo-j606f.dts
> index 10c9d338446c..fd064899791c 100644
> --- a/arch/arm64/boot/dts/qcom/sm6115p-lenovo-j606f.dts
> +++ b/arch/arm64/boot/dts/qcom/sm6115p-lenovo-j606f.dts
> @@ -52,6 +52,17 @@ key-volume-up {
>   			wakeup-source;
>   		};
>   	};
> +
> +	reserved-memory {
> +		ramoops@...00000 {
> +			compatible = "ramoops";
> +			reg = <0x0 0xffc00000 0x0 0x100000>;
> +			record-size = <0x1000>;
> +			console-size = <0x40000>;

no ftrace-size?

> +			ecc-size = <16>;
> +			no-map;

I see that other ramoops defines are not marked with no-map. Is there 
any reason for that?

> +		};
> +	};
>   };
>   
>   &dispcc {
> 

-- 
With best wishes
Dmitry