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

Nikunj Kela
2023-09-05T17:58:34Z

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!