Commit 853413b2 authored by Tamir Gilad-Raz's avatar Tamir Gilad-Raz Committed by Oded Gabbay
Browse files

habanalabs: adjacent timestamps should be more accurate 



timestamp events that expire on the same interrupt will get the same
timestamp value

Signed-off-by: default avatarTamir Gilad-Raz <tgiladraz@habana.ai>
Reviewed-by: default avatarOded Gabbay <ogabbay@kernel.org>
Signed-off-by: default avatarOded Gabbay <ogabbay@kernel.org>
parent 35d89444

drivers/misc/habanalabs/common/irq.c

+3 −3
Original line number Diff line number Diff line
@@ -228,7 +228,7 @@ static void hl_ts_free_objects(struct work_struct *work) 
 * list to a dedicated workqueue to do the actual put.

 */

static int handle_registration_node(struct hl_device *hdev, struct hl_user_pending_interrupt *pend,

						struct list_head **free_list)

						struct list_head **free_list, ktime_t now)

{

	struct timestamp_reg_free_node *free_node;

	u64 timestamp;
@@ -246,7 +246,7 @@ static int handle_registration_node(struct hl_device *hdev, struct hl_user_pendi 
	if (!free_node)

		return -ENOMEM;



	timestamp = ktime_get_ns();

	timestamp = ktime_to_ns(now);



	*pend->ts_reg_info.timestamp_kernel_addr = timestamp;
@@ -298,7 +298,7 @@ static void handle_user_interrupt(struct hl_device *hdev, struct hl_user_interru 
			if (pend->ts_reg_info.buf) {

				if (!reg_node_handle_fail) {

					rc = handle_registration_node(hdev, pend,

									&ts_reg_free_list_head);

								&ts_reg_free_list_head, now);

					if (rc)

						reg_node_handle_fail = true;

				}