[PATCH v3 0/3] Add qcom hvc/shmem transport

Krzysztof Kozlowski krzysztof.kozlowski at linaro.org
Tue Sep 5 09:37:14 PDT 2023


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




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