Commit c8fee419 authored by Ofir Bitton's avatar Ofir Bitton Committed by Oded Gabbay
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habanalabs: expose a single cs seq in staged submissions 



Staged submission consists of multiple command submissions.
In order to be explicit, driver should return a single cs sequence
for every cs in the submission, or else user may try to wait on
an internal CS rather than waiting for the whole submission.

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 42254c2a

drivers/misc/habanalabs/common/command_submission.c

+6 −0
Original line number Diff line number Diff line
@@ -1295,6 +1295,12 @@ static int cs_ioctl_default(struct hl_fpriv *hpriv, void __user *chunks, 
	if (rc)

		goto free_cs_object;



	/* If this is a staged submission we must return the staged sequence

	 * rather than the internal CS sequence

	 */

	if (cs->staged_cs)

		*cs_seq = cs->staged_sequence;



	/* Validate ALL the CS chunks before submitting the CS */

	for (i = 0 ; i < num_chunks ; i++) {

		struct hl_cs_chunk *chunk = &cs_chunk_array[i];