Messages in this thread Patch in this message | | | From | Oded Gabbay <> | Subject | [PATCH] habanalabs: expose a single cs seq in staged submissions | Date | Tue, 14 Sep 2021 14:59:32 +0300 |
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From: Ofir Bitton <obitton@habana.ai>
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> --- drivers/misc/habanalabs/common/command_submission.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/misc/habanalabs/common/command_submission.c b/drivers/misc/habanalabs/common/command_submission.c index a4ed91ed991d..91b57544f7c6 100644 --- a/drivers/misc/habanalabs/common/command_submission.c +++ b/drivers/misc/habanalabs/common/command_submission.c @@ -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]; -- 2.17.1
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