linux-kernel - Re: [PATCH v3 0/3] Add qcom hvc/shmem transport

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Message-ID: <f5b05cfa-f12c-4f4d-a801-3aa76d843d6d@linaro.org>
Date:   Tue, 5 Sep 2023 18:37:14 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Nikunj Kela <quic_nkela@...cinc.com>, sudeep.holla@....com
Cc:     cristian.marussi@....com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        agross@...nel.org, andersson@...nel.org, konrad.dybcio@...aro.org,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH v3 0/3] Add qcom hvc/shmem transport

On 05/09/2023 18:06, Nikunj Kela wrote:
> 
> On 8/11/2023 10:57 AM, Nikunj Kela wrote:
>> This change introduce a new transport channel for Qualcomm virtual
>> platforms. The transport is mechanically similar to ARM_SCMI_TRANSPORT_SMC.
>> The difference between the two transports is that a parameter is passed in
>> the hypervisor call to identify which doorbell to assert. This parameter is
>> dynamically generated at runtime on the device and insuitable to pass via
>> the devicetree.
>>
>> The function ID and parameter are stored by firmware in the shmem region.
>>
>> This has been tested on ARM64 virtual Qualcomm platform.
>>
>> ---
>> v3 -> fix the compilation error reported by the test bot,
>>        add support for polling based instances
>>
>> v2 -> use allOf construct in dtb schema,
>>        remove wrappers from mutexes,
>>        use architecture independent channel layout
>>
>> v1 -> original patches
>>
>> Nikunj Kela (3):
>>    dt-bindings: arm: convert nested if-else construct to allOf
>>    dt-bindings: arm: Add qcom specific hvc transport for SCMI
>>    firmware: arm_scmi: Add qcom hvc/shmem transport
>>
>>   .../bindings/firmware/arm,scmi.yaml           |  67 ++---
>>   drivers/firmware/arm_scmi/Kconfig             |  13 +
>>   drivers/firmware/arm_scmi/Makefile            |   2 +
>>   drivers/firmware/arm_scmi/common.h            |   3 +
>>   drivers/firmware/arm_scmi/driver.c            |   4 +
>>   drivers/firmware/arm_scmi/qcom_hvc.c          | 232 ++++++++++++++++++
>>   6 files changed, 293 insertions(+), 28 deletions(-)
>>   create mode 100644 drivers/firmware/arm_scmi/qcom_hvc.c
> Gentle Ping!

It's third ping these two weeks from Qualcomm. Folks, it is merge
window. What do you think will happen with your ping during this time?

Best regards,
Krzysztof