Commit b219d209 authored by Ofir Bitton's avatar Ofir Bitton Committed by Oded Gabbay
Browse files

habanalabs/gaudi2: support abrupt device reset event 



In certain scenarios, firmware might encounter a fatal event for
which a device reset is required. Hence, a proper notification
is needed for driver to be aware and initiate a reset sequence.

In secured environments the reset will be performed by firmware
without an explicit request from the driver.

Signed-off-by: default avatarOfir Bitton <obitton@habana.ai>
Reviewed-by: default avatarOded Gabbay <ogabbay@kernel.org>
Signed-off-by: default avatarOded Gabbay <ogabbay@kernel.org>
parent 086ab54a

drivers/misc/habanalabs/gaudi2/gaudi2.c

+1 −0
Original line number Diff line number Diff line
@@ -9226,6 +9226,7 @@ static void gaudi2_handle_eqe(struct hl_device *hdev, struct hl_eq_entry *eq_ent 
		break;



	case GAUDI2_EVENT_CPU_FP32_NOT_SUPPORTED:

	case GAUDI2_EVENT_DEV_RESET_REQ:

		event_mask |= HL_NOTIFIER_EVENT_GENERAL_HW_ERR;

		error_count = GAUDI2_NA_EVENT_CAUSE;

		is_critical = true;

drivers/misc/habanalabs/include/gaudi2/gaudi2_async_events.h

+1 −0
Original line number Diff line number Diff line
@@ -958,6 +958,7 @@ enum gaudi2_async_event_id { 
	GAUDI2_EVENT_CPU11_STATUS_NIC11_ENG1 = 1318,

	GAUDI2_EVENT_ARC_DCCM_FULL = 1319,

	GAUDI2_EVENT_CPU_FP32_NOT_SUPPORTED = 1320,

	GAUDI2_EVENT_DEV_RESET_REQ = 1321,

	GAUDI2_EVENT_SIZE,

};

drivers/misc/habanalabs/include/gaudi2/gaudi2_async_ids_map_extended.h

+2 −0
Original line number Diff line number Diff line
@@ -2665,6 +2665,8 @@ static struct gaudi2_async_events_ids_map gaudi2_irq_map_table[] = { 
		.msg = 1, .reset = 0, .name = "ARC_DCCM_FULL" },

	{ .fc_id = 1320, .cpu_id = 626, .valid = 1,

		.msg = 1, .reset = 1, .name = "FP32_NOT_SUPPORTED" },

	{ .fc_id = 1321, .cpu_id = 627, .valid = 1,

		.msg = 1, .reset = 1, .name = "DEV_RESET_REQ" },

};



#endif /* __GAUDI2_ASYNC_IDS_MAP_EVENTS_EXT_H_ */