linux-kernel - Re: [PATCH 00/13] soc: qcom: mdt_loader: Support Qualcomm SM8450

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Message-ID: <8ee1cea3-00f3-7a9c-dbd9-aaf8160db006@linaro.org>
Date:   Thu, 3 Feb 2022 18:11:49 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>
Cc:     Rob Herring <robh+dt@...nel.org>, linux-arm-msm@...r.kernel.org,
        linux-remoteproc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 00/13] soc: qcom: mdt_loader: Support Qualcomm SM8450

On 28/01/2022 05:55, Bjorn Andersson wrote:
> The Qualcomm SM8450 platform comes with both some smaller changes in the
> firmware packaging and a new requirement to hold onto the metadata buffer until
> PAS auth_and_reset has been completed.
> 
> Extend the PAS api and rework the mdt_loader to meet these new requirements,
> then wire this up with the PAS remoteproc driver and finally add the SM8450
> remoteproc instances.
> 
> Bjorn Andersson (13):
>    firmware: qcom: scm: Introduce pas_metadata context
>    soc: qcom: mdt_loader: Split out split-file-loader
>    soc: qcom: mdt_loader: Allow hash segment to be split out
>    soc: qcom: mdt_loader: Allow hash to reside in any segment
>    soc: qcom: mdt_loader: Extend check for split firmware
>    soc: qcom: mdt_loader: Reorder parts of __qcom_mdt_load()
>    soc: qcom: mdt_loader: Always invoke PAS mem_setup
>    soc: qcom: mdt_loader: Extract PAS operations
>    remoteproc: qcom: pas: Carry PAS metadata context
>    dt-bindings: remoteproc: qcom: pas: Add SM8450 PAS compatibles
>    remoteproc: qcom: pas: Add SM8450 remoteproc support
>    arm64: dts: qcom: sm8450: Add remoteproc enablers and instances
>    arm64: dts: qcom: sm8450-qrd: Enable remoteproc instances

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>

Minor nitpicks:
  - I'd reorder the series by moving patch 1 (pas_metadata) closer to 
patch 8&9 (pas metadata usage)
  - I would have added pas_metadata as an argument to qcom_mdt_load(). 
However I see, why you didn't want to add another argument to the list.

> 
>   .../bindings/remoteproc/qcom,adsp.yaml        |  16 +
>   arch/arm64/boot/dts/qcom/sm8450-qrd.dts       |  20 ++
>   arch/arm64/boot/dts/qcom/sm8450.dtsi          | 297 ++++++++++++++++++
>   drivers/firmware/qcom_scm.c                   |  39 ++-
>   drivers/remoteproc/qcom_q6v5_mss.c            |   7 +-
>   drivers/remoteproc/qcom_q6v5_pas.c            |  36 ++-
>   drivers/soc/qcom/mdt_loader.c                 | 232 +++++++++-----
>   include/linux/qcom_scm.h                      |  10 +-
>   include/linux/soc/qcom/mdt_loader.h           |  17 +-
>   9 files changed, 579 insertions(+), 95 deletions(-)
> 


-- 
With best wishes
Dmitry