[PATCH v2 01/14] firmware: scmi: optee: use TEE shared memory for SCMI messages

[Tom Rini]

On Tue, May 31, 2022 at 06:09:16PM +0200, Etienne Carriere wrote:

> Changes implementation when using TEE dynamically allocated shared
> memory to synchronize with the Linux implementation where the legacy
> SMT protocol cannot be used with such memory since it is expected from
> device mapped memory whereas OP-TEE shared memory is cached and
> hence should not be accessed using memcpy_toio()/memcpy_fromio().
> 
> This change implements the MSG shared memory protocol introduced
> in Linux [1]. The protocol uses a simplified SMT header of 32bit
> named MSG_SMT to carry SCMI protocol information and uses side channel
> means to carry exchanged buffer size information, as TEE invocation API
> parameters when used in the SCMI OP-TEE transport.
> 
> Link: [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f301bba0ca7392d16a6ea4f1d264a91f1fadea1a
> Signed-off-by: Etienne Carriere <etienne.carriere at linaro.org>

For the series, applied to u-boot/next, thanks!

-- 
Tom
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