Commit 54faa560 authored by Oded Gabbay's avatar Oded Gabbay
Browse files

habanalabs: fix user interrupt wait when timeout is 0 



When timeout is 0, we need to return the busy status in case the
target value wasn't reached upon entry to the ioctl.

Also return the correct timestamp.

Signed-off-by: default avatarOded Gabbay <ogabbay@kernel.org>
parent 9a79e3e4

drivers/misc/habanalabs/common/command_submission.c

+6 −4
Original line number Diff line number Diff line
@@ -2858,8 +2858,7 @@ static int _hl_interrupt_wait_ioctl(struct hl_device *hdev, struct hl_ctx *ctx, 
				struct hl_cb_mgr *cb_mgr, u64 timeout_us,

				u64 cq_counters_handle,	u64 cq_counters_offset,

				u64 target_value, struct hl_user_interrupt *interrupt,

				u32 *status,

				u64 *timestamp)

				u32 *status, u64 *timestamp)

{

	struct hl_user_pending_interrupt *pend;

	unsigned long timeout, flags;
@@ -2900,10 +2899,13 @@ static int _hl_interrupt_wait_ioctl(struct hl_device *hdev, struct hl_ctx *ctx, 
		*status = HL_WAIT_CS_STATUS_COMPLETED;

		/* There was no interrupt, we assume the completion is now. */

		pend->fence.timestamp = ktime_get();

	}

		goto set_timestamp;



	if (!timeout_us || (*status == HL_WAIT_CS_STATUS_COMPLETED))

	} else if (!timeout_us) {

		*status = HL_WAIT_CS_STATUS_BUSY;

		pend->fence.timestamp = ktime_get();

		goto set_timestamp;

	}



	/* Add pending user interrupt to relevant list for the interrupt

	 * handler to monitor