/* Number of available element for the input message queue of the IPC * ipc_task
*/ #define IPC_THREAD_QUEUE_SIZE 256
/** * struct ipc_task_queue_args - Struct for Task queue elements * @ipc_imem: Pointer to struct iosm_imem * @msg: Message argument for tasklet function. (optional, can be NULL) * @completion: OS object used to wait for the tasklet function to finish for * synchronous calls * @func: Function to be called in tasklet (tl) context * @arg: Generic integer argument for tasklet function (optional) * @size: Message size argument for tasklet function (optional) * @response: Return code of tasklet function for synchronous calls * @is_copy: Is true if msg contains a pointer to a copy of the original msg * for async. calls that needs to be freed once the tasklet returns
*/ struct ipc_task_queue_args { struct iosm_imem *ipc_imem; void *msg; struct completion *completion; int (*func)(struct iosm_imem *ipc_imem, int arg, void *msg,
size_t size); int arg;
size_t size; int response;
u8 is_copy:1;
};
/** * struct ipc_task_queue - Struct for Task queue * @q_lock: Protect the message queue of the ipc ipc_task * @args: Message queue of the IPC ipc_task * @q_rpos: First queue element to process. * @q_wpos: First free element of the input queue.
*/ struct ipc_task_queue {
spinlock_t q_lock; /* for atomic operation on queue */ struct ipc_task_queue_args args[IPC_THREAD_QUEUE_SIZE]; unsignedint q_rpos; unsignedint q_wpos;
};
/** * struct ipc_task - Struct for Task * @dev: Pointer to device structure * @ipc_tasklet: Tasklet for serialized work offload * from interrupts and OS callbacks * @ipc_queue: Task for entry into ipc task queue
*/ struct ipc_task { struct device *dev; struct tasklet_struct *ipc_tasklet; struct ipc_task_queue ipc_queue;
};
/** * ipc_task_init - Allocate a tasklet * @ipc_task: Pointer to ipc_task structure * Returns: 0 on success and failure value on error.
*/ int ipc_task_init(struct ipc_task *ipc_task);
/** * ipc_task_deinit - Free a tasklet, invalidating its pointer. * @ipc_task: Pointer to ipc_task structure
*/ void ipc_task_deinit(struct ipc_task *ipc_task);
/** * ipc_task_queue_send_task - Synchronously/Asynchronously call a function in * tasklet context. * @imem: Pointer to iosm_imem struct * @func: Function to be called in tasklet context * @arg: Integer argument for func * @msg: Message pointer argument for func * @size: Size argument for func * @wait: if true wait for result * * Returns: Result value returned by func or failure value if func could not * be called.
*/ int ipc_task_queue_send_task(struct iosm_imem *imem, int (*func)(struct iosm_imem *ipc_imem, int arg, void *msg, size_t size), int arg, void *msg, size_t size, bool wait);
#endif
Messung V0.5
¤ Dauer der Verarbeitung: 0.19 Sekunden
(vorverarbeitet)
¤
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.