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habanalabs: expose a single cs seq in staged submissions

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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: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
This commit is contained in:
Ofir Bitton 2021-09-12 15:49:00 +03:00 committed by Oded Gabbay
parent 42254c2a49
commit c8fee41957
1 changed files with 6 additions and 0 deletions
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6
drivers/misc/habanalabs/common/command_submission.c
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@ -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];