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habanalabs: adjacent timestamps should be more accurate

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

Signed-off-by: Tamir Gilad-Raz <tgiladraz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
This commit is contained in:
Tamir Gilad-Raz 2022-11-06 11:22:16 +02:00 committed by Oded Gabbay
parent 35d8944480
commit 853413b234
1 changed files with 3 additions and 3 deletions
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6
drivers/misc/habanalabs/common/irq.c
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@ -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;
}