linux-kernel - Re: [PATCH v3 1/2] dt-bindings: soc: qcom: Add RPM Master stats

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Sun, 16 Apr 2023 10:51:58 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...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>
Cc:     Marijn Suijten <marijn.suijten@...ainline.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/2] dt-bindings: soc: qcom: Add RPM Master stats

On 14/04/2023 13:37, Konrad Dybcio wrote:
> The RPM MSG RAM contains per-RPM-master (e.g. APPS, ADSP etc.) sleep
> statistics. They let one assess which core is actively preventing the
> system from entering a true low-power mode.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
> ---
>  .../bindings/soc/qcom/qcom,rpm-master-stats.yaml   | 53 ++++++++++++++++++++++
>  1 file changed, 53 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,rpm-master-stats.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,rpm-master-stats.yaml
> new file mode 100644
> index 000000000000..d7e58cbd3344
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,rpm-master-stats.yaml
> @@ -0,0 +1,53 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/soc/qcom/qcom,rpm-master-stats.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm Technologies, Inc. (QTI) RPM Master Stats
> +
> +maintainers:
> +  - Konrad Dybcio <konrad.dybcio@...aro.org>
> +
> +description:
> +  Per-RPM-Master (e.g. APSS, ADSP, etc.) sleep statistics.

Explain what is RPM-Master and what do you mean by "sleep".

> +
> +properties:
> +  compatible:
> +    const: qcom,rpm-master-stats
> +
> +  qcom,rpm-msg-ram:
> +    $ref: /schemas/types.yaml#/definitions/phandle-array
> +    description: Phandle to an RPM MSG RAM slice containing the master stats
> +    minItems: 1
> +    maxItems: 5
> +
> +  qcom,master-names:
> +    $ref: /schemas/types.yaml#/definitions/string-array
> +    description: RPM Master name

There is a relation between this and qcom,rpm-msg-ram which you do not
describe. It's not just RPM master name...

Best regards,
Krzysztof