Hello arm-soc maintainers,

Please pull these patches which adds support for FF-A [1] in the OP-TEE driver. There's a bit of shuffling in the code where everyhting related to the old SMC based ABI is moved to drivers/tee/optee/smc_abi.c, but there should not be any changed in behavior for with the old ABI.

Note that this is based on top of the recent fix 7f565d0ead26 ("tee: optee: Fix missing devices unregister during optee_remove") which has already been requested to be pulled.

Thanks, Jens

The following changes since commit 7f565d0ead264329749c0da488de9c8dfa2f18ce:

tee: optee: Fix missing devices unregister during optee_remove (2021-10-12 13:24:39 +0200)

are available in the Git repository at:

git://git.linaro.org/people/jens.wiklander/linux-tee.git tags/optee-ffa-for-v5.16

for you to fetch changes up to 4615e5a34b95e0d81467f6d2176f19a5d184cb5d:

optee: add FF-A support (2021-10-18 11:44:23 +0200)

---------------------------------------------------------------- Add FF-A support in OP-TEE driver

Adds supports for the OP-TEE driver to communicate with secure world using FF-A [1] as transport.

[1] https://developer.arm.com/documentation/den0077/latest

---------------------------------------------------------------- Jens Wiklander (5): tee: add sec_world_id to struct tee_shm optee: simplify optee_release() optee: refactor driver with internal callbacks optee: isolate smc abi optee: add FF-A support

drivers/tee/optee/Makefile | 5 +- drivers/tee/optee/call.c | 445 ++---------- drivers/tee/optee/core.c | 719 ++------------------ drivers/tee/optee/ffa_abi.c | 911 +++++++++++++++++++++++++ drivers/tee/optee/optee_ffa.h | 153 +++++ drivers/tee/optee/optee_msg.h | 27 +- drivers/tee/optee/optee_private.h | 157 ++++- drivers/tee/optee/rpc.c | 237 +------ drivers/tee/optee/shm_pool.c | 101 --- drivers/tee/optee/shm_pool.h | 14 - drivers/tee/optee/smc_abi.c | 1361 +++++++++++++++++++++++++++++++++++++ include/linux/tee_drv.h | 7 +- 12 files changed, 2728 insertions(+), 1409 deletions(-) create mode 100644 drivers/tee/optee/ffa_abi.c create mode 100644 drivers/tee/optee/optee_ffa.h delete mode 100644 drivers/tee/optee/shm_pool.c delete mode 100644 drivers/tee/optee/shm_pool.h create mode 100644 drivers/tee/optee/smc_abi.c