diff options
| author | Ofir Bitton <obitton@habana.ai> | 2020-07-05 13:35:51 +0300 |
|---|---|---|
| committer | Oded Gabbay <oded.gabbay@gmail.com> | 2020-07-24 20:31:37 +0300 |
| commit | 5574cb2194b13de78df68cd32655ddbe619b1251 (patch) | |
| tree | 06fbeb940ec1a0c8eb172743859e105b29cd72df /drivers/misc/habanalabs/irq.c | |
| parent | c83c4171933bc4ebd147efb6bbdb787b25d1907d (diff) | |
| download | linux-5574cb2194b13de78df68cd32655ddbe619b1251.tar.bz2 | |
habanalabs: Assign each CQ with its own work queue
We identified a possible race during job completion when working
with a single multi-threaded work queue. In order to overcome this
race we suggest using a single threaded work queue per completion
queue, hence we guarantee jobs completion in order.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Diffstat (limited to 'drivers/misc/habanalabs/irq.c')
| -rw-r--r-- | drivers/misc/habanalabs/irq.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/misc/habanalabs/irq.c b/drivers/misc/habanalabs/irq.c index 195a5ecba0e8..c8db717023f5 100644 --- a/drivers/misc/habanalabs/irq.c +++ b/drivers/misc/habanalabs/irq.c @@ -119,7 +119,7 @@ irqreturn_t hl_irq_handler_cq(int irq, void *arg) if ((shadow_index_valid) && (!hdev->disabled)) { job = queue->shadow_queue[hl_pi_2_offset(shadow_index)]; - queue_work(hdev->cq_wq, &job->finish_work); + queue_work(hdev->cq_wq[cq->cq_idx], &job->finish_work); } atomic_inc(&queue->ci); |