diff options
Diffstat (limited to 'drivers/tee/optee/optee_private.h')
| -rw-r--r-- | drivers/tee/optee/optee_private.h | 31 |
1 files changed, 26 insertions, 5 deletions
diff --git a/drivers/tee/optee/optee_private.h b/drivers/tee/optee/optee_private.h index e77765c78878..a33d98d17cfd 100644 --- a/drivers/tee/optee/optee_private.h +++ b/drivers/tee/optee/optee_private.h @@ -59,6 +59,16 @@ struct optee_notif { u_long *bitmap; }; +#define OPTEE_SHM_ARG_ALLOC_PRIV BIT(0) +#define OPTEE_SHM_ARG_SHARED BIT(1) +struct optee_shm_arg_entry; +struct optee_shm_arg_cache { + u32 flags; + /* Serializes access to this struct */ + struct mutex mutex; + struct list_head shm_args; +}; + /** * struct optee_supp - supplicant synchronization struct * @ctx the context of current connected supplicant. @@ -121,7 +131,7 @@ struct optee; */ struct optee_ops { int (*do_call_with_arg)(struct tee_context *ctx, - struct tee_shm *shm_arg); + struct tee_shm *shm_arg, u_int offs); int (*to_msg_param)(struct optee *optee, struct optee_msg_param *msg_params, size_t num_params, const struct tee_param *params); @@ -143,7 +153,7 @@ struct optee_ops { * @notif: notification synchronization struct * @supp: supplicant synchronization struct for RPC to supplicant * @pool: shared memory pool - * @rpc_arg_count: If > 0 number of RPC parameters to make room for + * @rpc_param_count: If > 0 number of RPC parameters to make room for * @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 @@ -157,11 +167,12 @@ struct optee { struct optee_smc smc; struct optee_ffa ffa; }; + struct optee_shm_arg_cache shm_arg_cache; struct optee_call_queue call_queue; struct optee_notif notif; struct optee_supp supp; struct tee_shm_pool *pool; - unsigned int rpc_arg_count; + unsigned int rpc_param_count; bool scan_bus_done; struct workqueue_struct *scan_bus_wq; struct work_struct scan_bus_work; @@ -273,8 +284,18 @@ void optee_cq_wait_for_completion(struct optee_call_queue *cq, void optee_cq_wait_final(struct optee_call_queue *cq, struct optee_call_waiter *w); int optee_check_mem_type(unsigned long start, size_t num_pages); -struct tee_shm *optee_get_msg_arg(struct tee_context *ctx, size_t num_params, - struct optee_msg_arg **msg_arg); + +void optee_shm_arg_cache_init(struct optee *optee, u32 flags); +void optee_shm_arg_cache_uninit(struct optee *optee); +struct optee_msg_arg *optee_get_msg_arg(struct tee_context *ctx, + size_t num_params, + struct optee_shm_arg_entry **entry, + struct tee_shm **shm_ret, + u_int *offs); +void optee_free_msg_arg(struct tee_context *ctx, + struct optee_shm_arg_entry *entry, u_int offs); +size_t optee_msg_arg_size(size_t rpc_param_count); + struct tee_shm *optee_rpc_cmd_alloc_suppl(struct tee_context *ctx, size_t sz); void optee_rpc_cmd_free_suppl(struct tee_context *ctx, struct tee_shm *shm); |