Add support for inference cancellation

Send cancel inference messages to the ethosu subsystem to abort
inference execution there.  Also mark inference as aborted in the
linux driver stack itself, so pending inference messages are not
resent when resetting the firmware.

Change-Id: I244c2b119fd7995d14e3859815abf2a00c7f0583

1 files changed, 20 insertions, 0 deletions

diff --git a/kernel/ethosu_core_interface.h b/kernel/ethosu_core_interface.h
index 76fe35e..057e3c2 100644
--- a/kernel/ethosu_core_interface.h
+++ b/kernel/ethosu_core_interface.h
@@ -59,6 +59,8 @@ enum ethosu_core_msg_type {
 	ETHOSU_CORE_MSG_CAPABILITIES_RSP,
 	ETHOSU_CORE_MSG_NETWORK_INFO_REQ,
 	ETHOSU_CORE_MSG_NETWORK_INFO_RSP,
+	ETHOSU_CORE_MSG_CANCEL_INFERENCE_REQ,
+	ETHOSU_CORE_MSG_CANCEL_INFERENCE_RSP,
 	ETHOSU_CORE_MSG_MAX
 };
 
@@ -98,6 +100,8 @@ enum ethosu_core_status {
 	ETHOSU_CORE_STATUS_ERROR,
 	ETHOSU_CORE_STATUS_RUNNING,
 	ETHOSU_CORE_STATUS_REJECTED,
+	ETHOSU_CORE_STATUS_ABORTED,
+	ETHOSU_CORE_STATUS_ABORTING,
 };
 
 /**
@@ -217,6 +221,22 @@ struct ethosu_core_msg_capabilities_rsp {
 };
 
 /**
+ * struct ethosu_core_cancel_inference_req - Message cancel inference request
+ */
+struct ethosu_core_cancel_inference_req {
+	uint64_t user_arg;
+	uint64_t inference_handle;
+};
+
+/**
+ * struct ethosu_core_cancel_inference_rsp - Message cancel inference response
+ */
+struct ethosu_core_cancel_inference_rsp {
+	uint64_t user_arg;
+	uint32_t status;
+};
+
+/**
  * enum ethosu_core_msg_err_type - Error types
  */
 enum ethosu_core_msg_err_type {