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| author | Maxim Uvarov <maxim.uvarov@linaro.org> | 2020-06-18 16:52:50 +0300 |
|---|---|---|
| committer | Jens Wiklander <jens.wiklander@linaro.org> | 2020-07-10 09:41:53 +0200 |
| commit | 5f178bb71e3aff2abab01b1ff6837c3a054b25e1 (patch) | |
| tree | 3f501c8b3272410d791775c4dd1a8132f6f24e17 /drivers/tee/optee/optee_private.h | |
| parent | 58df195cd47d9b06c7160253d35881c1de90aa9e (diff) | |
| download | linux-stable-5f178bb71e3aff2abab01b1ff6837c3a054b25e1.tar.gz linux-stable-5f178bb71e3aff2abab01b1ff6837c3a054b25e1.tar.bz2 linux-stable-5f178bb71e3aff2abab01b1ff6837c3a054b25e1.zip | |
optee: enable support for multi-stage bus enumeration
Some drivers (like ftpm) can operate only after tee-supplicant
runs because of tee-supplicant provides things like storage
services (rpmb, shm). This patch splits probe of non tee-supplicant
dependable drivers to the early stage, and after tee-supplicant run
probe other drivers.
Signed-off-by: Maxim Uvarov <maxim.uvarov@linaro.org>
Suggested-by: Sumit Garg <sumit.garg@linaro.org>
Suggested-by: Arnd Bergmann <arnd@linaro.org>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Acked-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Diffstat (limited to 'drivers/tee/optee/optee_private.h')
| -rw-r--r-- | drivers/tee/optee/optee_private.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/tee/optee/optee_private.h b/drivers/tee/optee/optee_private.h index d9c5037b4e03..8b71839a357e 100644 --- a/drivers/tee/optee/optee_private.h +++ b/drivers/tee/optee/optee_private.h @@ -78,6 +78,9 @@ struct optee_supp { * @memremaped_shm virtual address of memory in shared memory pool * @sec_caps: secure world capabilities defined by * OPTEE_SMC_SEC_CAP_* in optee_smc.h + * @scan_bus_done flag if device registation was already done. + * @scan_bus_wq workqueue to scan optee bus and register optee drivers + * @scan_bus_work workq to scan optee bus and register optee drivers */ struct optee { struct tee_device *supp_teedev; @@ -89,6 +92,9 @@ struct optee { struct tee_shm_pool *pool; void *memremaped_shm; u32 sec_caps; + bool scan_bus_done; + struct workqueue_struct *scan_bus_wq; + struct work_struct scan_bus_work; }; struct optee_session { @@ -173,7 +179,9 @@ void optee_free_pages_list(void *array, size_t num_entries); void optee_fill_pages_list(u64 *dst, struct page **pages, int num_pages, size_t page_offset); -int optee_enumerate_devices(void); +#define PTA_CMD_GET_DEVICES 0x0 +#define PTA_CMD_GET_DEVICES_SUPP 0x1 +int optee_enumerate_devices(u32 func); /* * Small helpers |