Re: [PATCH v2 5/7] firmware: arm_scmi: Make use of FastChannels configurable
From: Randy Dunlap
Date: Mon Jun 06 2022 - 11:04:39 EST
Hi,
On 6/6/22 03:02, Cristian Marussi wrote:
> diff --git a/drivers/firmware/arm_scmi/Kconfig b/drivers/firmware/arm_scmi/Kconfig
> index 1e7b7fec97d9..624f32b61825 100644
> --- a/drivers/firmware/arm_scmi/Kconfig
> +++ b/drivers/firmware/arm_scmi/Kconfig
> @@ -42,6 +42,19 @@ config ARM_SCMI_HAVE_MSG
> This declares whether a message passing based transport for SCMI is
> available.
>
> +config ARM_SCMI_USE_FASTCHANNELS
> + bool "Use SCMI FastChannels when available"
> + default y
> + help
> + Use SCMI FastChannels when advertised as available by the platform.
> +
> + On systems where the SCMI platform advertises the availability of
> + FastChannels, supported SCMI commands can be issued triggering a
> + one-way FastChannel request, much more quicker than using a
Either much more quickly
or much quicker
> + regular SCMI message transfer.
> + When set to N forces the OSPM to use instead regular SCMI message
> + transfers even if FastChannels are available. If unsure say Y.
thanks.
--
~Randy