firmware: arm_scmi: Add atomic mode support to smc transport

Browse source

Add a Kernel configuration option to enable SCMI SMC transport atomic
mode operation for selected SCMI transactions and leave it as default
disabled.

Substitute mutex usages with busy-waiting and declare smc transport as
.atomic_enabled if such Kernel configuration option is enabled.

Link: https://lore.kernel.org/r/20211220195646.44498-8-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

...

This commit is contained in:

Cristian Marussi 2021-12-20 19:56:42 +00:00 • committed by Sudeep Holla

parent 69255e7468

commit 0bfdca8a86

2 changed files with 64 additions and 6 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

14

drivers/firmware/arm_scmi/Kconfig

View file

56

drivers/firmware/arm_scmi/smc.c

View file