[02/27] habanalabs/gaudi: capture RAZWI info only if HW indication detected

Commit Message

Oded Gabbay Feb. 12, 2023, 8:44 p.m. UTC

From: Koby Elbaz <[e-mail]>

RAZWI handling routine is called from most EQ events,
no matter if a RAZWI happens or not.
This fix is added to verify the handler is called only if
a real RAZWI indication in HW has been detected.

Signed-off-by: Koby Elbaz <[e-mail]>
Reviewed-by: Oded Gabbay <[e-mail]>
Signed-off-by: Oded Gabbay <[e-mail]>
---
 drivers/accel/habanalabs/gaudi/gaudi.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

Patch

diff --git a/drivers/accel/habanalabs/gaudi/gaudi.c b/drivers/accel/habanalabs/gaudi/gaudi.c
index 71debe862c86..7475f33734d7 100644
--- a/drivers/accel/habanalabs/gaudi/gaudi.c
+++ b/drivers/accel/habanalabs/gaudi/gaudi.c
@@ -7297,7 +7297,7 @@  static void gaudi_handle_qman_err(struct hl_device *hdev, u16 event_type, u64 *e
 }
 
 static void gaudi_print_irq_info(struct hl_device *hdev, u16 event_type,
-					bool razwi, u64 *event_mask)
+					bool check_razwi, u64 *event_mask)
 {
 	bool is_read = false, is_write = false;
 	u16 engine_id[2], num_of_razwi_eng = 0;
@@ -7316,7 +7316,7 @@  static void gaudi_print_irq_info(struct hl_device *hdev, u16 event_type,
 	dev_err_ratelimited(hdev->dev, "Received H/W interrupt %d [\"%s\"]\n",
 		event_type, desc);
 
-	if (razwi) {
+	if (check_razwi) {
 		gaudi_print_and_get_razwi_info(hdev, &engine_id[0], &engine_id[1], &is_read,
 						&is_write);
 		gaudi_print_and_get_mmu_error_info(hdev, &razwi_addr, event_mask);
@@ -7333,8 +7333,9 @@  static void gaudi_print_irq_info(struct hl_device *hdev, u16 event_type,
 				num_of_razwi_eng = 1;
 		}
 
-		hl_handle_razwi(hdev, razwi_addr, engine_id, num_of_razwi_eng, razwi_flags,
-				event_mask);
+		if (razwi_flags)
+			hl_handle_razwi(hdev, razwi_addr, engine_id, num_of_razwi_eng,
+					razwi_flags, event_mask);
 	}
 }