linux-kernel - Re: [PATCH v4 00/21] Add Qualcomm Minidump kernel driver related support

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Message-ID: <d77f5601-2b08-a7c7-1400-7ab68b8add3a@quicinc.com>
Date:   Fri, 14 Jul 2023 20:55:26 +0530
From:   Mukesh Ojha <quic_mojha@...cinc.com>
To:     Kathiravan T <quic_kathirav@...cinc.com>, <corbet@....net>,
        <agross@...nel.org>, <andersson@...nel.org>,
        <konrad.dybcio@...aro.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <keescook@...omium.org>, <tony.luck@...el.com>,
        <gpiccoli@...lia.com>, <mathieu.poirier@...aro.org>,
        <catalin.marinas@....com>, <will@...nel.org>,
        <linus.walleij@...aro.org>, <andy.shevchenko@...il.com>
CC:     <linux-doc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-hardening@...r.kernel.org>,
        <linux-remoteproc@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-gpio@...r.kernel.org>
Subject: Re: [PATCH v4 00/21] Add Qualcomm Minidump kernel driver related
 support


> 
> Hi Mukesh,
> 
> For IPQ chipsets, for the crashdump to work, we need the below patch
> 
> firmware: scm: Modify only the download bits in TCSR register
> 
> can you post the below patches separately? Looks like minidump will take 
> some time and also I don't see any dependencies for these to go along 
> with the minidump. Given that, will it be possible to post the below 
> patches separately?
> 
>    firmware: qcom_scm: provide a read-modify-write function
>    pinctrl: qcom: Use qcom_scm_io_update_field()
>    firmware: scm: Modify only the download bits in TCSR register
> 
> Do let us know if we can take these patches and post it separately.

Yes, we can post this separately.

-Mukesh
> 
>>
>>   Documentation/admin-guide/index.rst                |   1 +
>>   Documentation/admin-guide/qcom_minidump.rst        | 293 +++++++++++
>>   .../devicetree/bindings/soc/qcom/qcom,ramoops.yaml | 126 +++++
>>   MAINTAINERS                                        |  15 +
>>   arch/arm64/boot/dts/qcom/sm8450.dtsi               |  12 +
>>   arch/arm64/configs/defconfig                       |   4 +
>>   drivers/firmware/Kconfig                           |  11 -
>>   drivers/firmware/qcom_scm.c                        |  85 ++-
>>   drivers/pinctrl/qcom/pinctrl-msm.c                 |  12 +-
>>   drivers/remoteproc/qcom_common.c                   | 142 +----
>>   drivers/soc/qcom/Kconfig                           |  39 ++
>>   drivers/soc/qcom/Makefile                          |   3 +
>>   drivers/soc/qcom/qcom_minidump.c                   | 582 
>> +++++++++++++++++++++
>>   drivers/soc/qcom/qcom_minidump_internal.h          |  98 ++++
>>   drivers/soc/qcom/qcom_minidump_smem.c              | 387 ++++++++++++++
>>   drivers/soc/qcom/qcom_pstore_minidump.c            | 210 ++++++++
>>   drivers/soc/qcom/smem.c                            |   9 +
>>   fs/pstore/ram.c                                    |  26 +-
>>   include/linux/firmware/qcom/qcom_scm.h             |   2 +
>>   include/linux/pstore_ram.h                         |   2 +
>>   include/soc/qcom/qcom_minidump.h                   |  64 +++
>>   kernel/kallsyms.c                                  |   2 +-
>>   22 files changed, 1973 insertions(+), 152 deletions(-)
>>   create mode 100644 Documentation/admin-guide/qcom_minidump.rst
>>   create mode 100644 
>> Documentation/devicetree/bindings/soc/qcom/qcom,ramoops.yaml
>>   create mode 100644 drivers/soc/qcom/qcom_minidump.c
>>   create mode 100644 drivers/soc/qcom/qcom_minidump_internal.h
>>   create mode 100644 drivers/soc/qcom/qcom_minidump_smem.c
>>   create mode 100644 drivers/soc/qcom/qcom_pstore_minidump.c
>>   create mode 100644 include/soc/qcom/qcom_minidump.h
>>