diff options
| author | Oded Gabbay <oded.gabbay@gmail.com> | 2019-07-18 09:03:58 +0300 |
|---|---|---|
| committer | Oded Gabbay <oded.gabbay@gmail.com> | 2019-09-05 14:55:26 +0300 |
| commit | 52a1ae115a68272325a327c229f5af44ba324132 (patch) | |
| tree | 6cb4972f6f4c005318e0913dc4c02fb953dd105e /drivers/misc | |
| parent | f388ec7c16ad8676ee516a735a6b7588252f971d (diff) | |
habanalabs: add debug print when rejecting CS
When rejecting CS because of too many in-flight CS, print a debug message
about it as it useful to know when the user is debugging (it indicates a
back-pressure from the driver as the device is not fast enough to consume
the CS)
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Reviewed-by: Omer Shpigelman <oshpigelman@habana.ai>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/habanalabs/command_submission.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/misc/habanalabs/command_submission.c b/drivers/misc/habanalabs/command_submission.c index f00d1c32f6d6..e4dd3e83df8b 100644 --- a/drivers/misc/habanalabs/command_submission.c +++ b/drivers/misc/habanalabs/command_submission.c @@ -305,6 +305,8 @@ static int allocate_cs(struct hl_device *hdev, struct hl_ctx *ctx, other = ctx->cs_pending[fence->cs_seq & (HL_MAX_PENDING_CS - 1)]; if ((other) && (!dma_fence_is_signaled(other))) { spin_unlock(&ctx->cs_lock); + dev_dbg(hdev->dev, + "Rejecting CS because of too many in-flights CS\n"); rc = -EAGAIN; goto free_fence; } |