Commit ff13b900 authored by Tal Cohen's avatar Tal Cohen Committed by Oded Gabbay
Browse files

habanalabs/gaudi: change TPC Assert to use TPC DEC instead of QMAN err 



This change is done while there is a problem to use QMAN error for
TPC assert async. The problem involves security limitation that exists
to generate the assert via QMAN error.

Signed-off-by: default avatarTal Cohen <talcohen@habana.ai>
Reviewed-by: default avatarOded Gabbay <ogabbay@kernel.org>
Signed-off-by: default avatarOded Gabbay <ogabbay@kernel.org>
parent 97a78e3d

drivers/misc/habanalabs/gaudi/gaudi.c

+6 −6
Original line number Diff line number Diff line
@@ -7216,12 +7216,6 @@ static void gaudi_handle_qman_err(struct hl_device *hdev, u16 event_type, u64 *e 


	switch (event_type) {

	case GAUDI_EVENT_TPC0_QM ... GAUDI_EVENT_TPC7_QM:

		/* In TPC QM event, notify on TPC assertion. While there isn't

		 * a specific event for assertion yet, the FW generates QM event.

		 * The SW upper layer will inspect an internal mapped area to indicate

		 * if the event is a tpc assertion or tpc QM.

		 */

		*event_mask |= HL_NOTIFIER_EVENT_TPC_ASSERT;

		index = event_type - GAUDI_EVENT_TPC0_QM;

		qid_base = GAUDI_QUEUE_ID_TPC_0_0 + index * QMAN_STREAMS;

		qman_base = mmTPC0_QM_BASE + index * TPC_QMAN_OFFSET;
@@ -7731,6 +7725,12 @@ static void gaudi_handle_eqe(struct hl_device *hdev, struct hl_eq_entry *eq_entr 
	case GAUDI_EVENT_TPC5_DEC:

	case GAUDI_EVENT_TPC6_DEC:

	case GAUDI_EVENT_TPC7_DEC:

		/* In TPC DEC event, notify on TPC assertion. While there isn't

		 * a specific event for assertion yet, the FW generates TPC DEC event.

		 * The SW upper layer will inspect an internal mapped area to indicate

		 * if the event is a TPC Assertion or a "real" TPC DEC.

		 */

		event_mask |= HL_NOTIFIER_EVENT_TPC_ASSERT;

		gaudi_print_irq_info(hdev, event_type, true);

		reset_required = gaudi_tpc_read_interrupts(hdev,

					tpc_dec_event_to_tpc_id(event_type),