Hello arm-soc maintainers,

Please pull these patches that enables SCMI with OP-TEE transport to to reserve a thread in the secure world to guarentee that requests will not have to wait for a thread to become available.

Thanks, Jens

The following changes since commit b85ea95d086471afb4ad062012a4d73cd328fa86:

Linux 6.7-rc1 (2023-11-12 16:19:07 -0800)

are available in the Git repository at:

https://git.linaro.org/people/jens.wiklander/linux-tee.git tags/system-thread-for-v6.8

for you to fetch changes up to 4b391c9c37646f25118355f414b9e6d9fefe782f:

firmware: arm_scmi: optee: use optee system invocation (2023-11-17 15:48:03 +0100)

---------------------------------------------------------------- OP-TEE add reserved system thread

Add support for a reserved system thread in the SMC-ABI of the OP-TEE driver. SCMI with OP-TEE transport uses this to guarantee that it will always have a thread available in the secure world.

---------------------------------------------------------------- Etienne Carriere (4): tee: optee: system thread call property tee: system session tee: optee: support tracking system threads firmware: arm_scmi: optee: use optee system invocation

drivers/firmware/arm_scmi/optee.c | 4 ++ drivers/tee/optee/call.c | 130 ++++++++++++++++++++++++++++++++++++-- drivers/tee/optee/core.c | 5 +- drivers/tee/optee/ffa_abi.c | 14 ++-- drivers/tee/optee/optee_private.h | 29 ++++++++- drivers/tee/optee/smc_abi.c | 32 +++++++--- drivers/tee/tee_core.c | 8 +++ include/linux/tee_drv.h | 16 +++++ 8 files changed, 211 insertions(+), 27 deletions(-)