mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-11 23:47:24 +00:00
593eac9805
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@linaro.org> |
||
|---|---|---|
| .. | ||
| Kconfig | ||
| mailbox_agent.c | ||
| Makefile | ||
| optee_agent.c | ||
| sandbox-scmi_agent.c | ||
| sandbox-scmi_devices.c | ||
| scmi_agent-uclass.c | ||
| smccc_agent.c | ||
| smt.c | ||
| smt.h | ||