Support timeout for interrupt semaphore
Introduce ETHOSU_INFERENCE_TIMEOUT CMake variable to set an
arbitrary timeout value that will be sent as argument to
ethosu_semaphore_take() for the interrupt semaphore. Adding
the ability to have a timeout for an inference. (Defaults to
no timeout/wait forever.)
Implement a placeholder mutex for the baremetal example and add
error checks for mutex_create() call.
Change-Id: Ia74391620340a27c23dc3d15f9ba742c674c8bfa
Signed-off-by: Jonny Svärd <jonny.svaerd@arm.com>
diff --git a/include/ethosu_driver.h b/include/ethosu_driver.h
index 9c9f173..7d55500 100644
--- a/include/ethosu_driver.h
+++ b/include/ethosu_driver.h
@@ -41,6 +41,12 @@
#define ETHOSU_DRIVER_VERSION_MINOR 16 ///< Driver minor version
#define ETHOSU_DRIVER_VERSION_PATCH 0 ///< Driver patch version
+#define ETHOSU_SEMAPHORE_WAIT_FOREVER (UINT64_MAX)
+
+#ifndef ETHOSU_SEMAPHORE_WAIT_INFERENCE
+#define ETHOSU_SEMAPHORE_WAIT_INFERENCE ETHOSU_SEMAPHORE_WAIT_FOREVER
+#endif
+
/******************************************************************************
* Types
******************************************************************************/
@@ -55,9 +61,17 @@
ETHOSU_JOB_DONE
};
+enum ethosu_job_result
+{
+ ETHOSU_JOB_RESULT_OK = 0,
+ ETHOSU_JOB_RESULT_TIMEOUT,
+ ETHOSU_JOB_RESULT_ERROR
+};
+
struct ethosu_job
{
volatile enum ethosu_job_state state;
+ volatile enum ethosu_job_result result;
const void *custom_data_ptr;
int custom_data_size;
const uint64_t *base_addr;
@@ -75,7 +89,6 @@
uint64_t fast_memory;
size_t fast_memory_size;
uint32_t power_request_counter;
- bool status_error;
bool reserved;
};
@@ -161,9 +174,10 @@
* Take semaphore.
*
* @param sem Pointer to semaphore handle
- * @returns 0 on success, else negative error code
+ * @param timeout Timeout value (unit impl. defined)
+ * @returns 0 on success else negative error code
*/
-int ethosu_semaphore_take(void *sem);
+int ethosu_semaphore_take(void *sem, uint64_t timeout);
/**
* Give semaphore.