linux-kernel - [PATCH 1/7] habanalabs/gaudi: clear QM errors only if not in stop_on

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Date:   Thu,  8 Apr 2021 18:22:28 +0300
From:   Oded Gabbay <ogabbay@...nel.org>
To:     linux-kernel@...r.kernel.org
Cc:     Tomer Tayar <ttayar@...ana.ai>
Subject: [PATCH 1/7] habanalabs/gaudi: clear QM errors only if not in stop_on_err mode

From: Tomer Tayar <ttayar@...ana.ai>

Clearing QM errors by the driver will prevent these H/W blocks from
stopping in case they are configured to stop on errors, so perform this
clearing only if this mode is not in use.

Signed-off-by: Tomer Tayar <ttayar@...ana.ai>
Reviewed-by: Oded Gabbay <ogabbay@...nel.org>
Signed-off-by: Oded Gabbay <ogabbay@...nel.org>
---
 drivers/misc/habanalabs/gaudi/gaudi.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c
index 03d3fb643e79..791434278904 100644
--- a/drivers/misc/habanalabs/gaudi/gaudi.c
+++ b/drivers/misc/habanalabs/gaudi/gaudi.c
@@ -7086,7 +7086,8 @@ static void gaudi_handle_qman_err_generic(struct hl_device *hdev,
 		}
 
 		/* Write 1 clear errors */
-		WREG32(glbl_sts_addr + 4 * i, glbl_sts_clr_val);
+		if (!hdev->stop_on_err)
+			WREG32(glbl_sts_addr + 4 * i, glbl_sts_clr_val);
 	}
 
 	arb_err_val = RREG32(arb_err_addr);
-- 
2.25.1