linux-kernel - [PATCH 1/6] habanalabs/gaudi: set the correct cpu_id on MME2

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Message-Id: <20210531151403.12494-1-ogabbay@kernel.org>
Date:   Mon, 31 May 2021 18:13:58 +0300
From:   Oded Gabbay <ogabbay@...nel.org>
To:     linux-kernel@...r.kernel.org
Cc:     Koby Elbaz <kelbaz@...ana.ai>
Subject: [PATCH 1/6] habanalabs/gaudi: set the correct cpu_id on MME2_QM failure

From: Koby Elbaz <kelbaz@...ana.ai>

This fix was applied since there was an incorrect reported CPU ID to GIC
such that an error in MME2 QMAN aliased to be an arriving from DMA0_QM.

Signed-off-by: Koby Elbaz <kelbaz@...ana.ai>
Reviewed-by: Oded Gabbay <ogabbay@...nel.org>
Signed-off-by: Oded Gabbay <ogabbay@...nel.org>
---
 drivers/misc/habanalabs/gaudi/gaudi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c
index 5ca4c8f86801..67c44f3fc55f 100644
--- a/drivers/misc/habanalabs/gaudi/gaudi.c
+++ b/drivers/misc/habanalabs/gaudi/gaudi.c
@@ -2956,7 +2956,7 @@ static void gaudi_init_mme_qman(struct hl_device *hdev, u32 mme_offset,
 
 		/* Configure RAZWI IRQ */
 		mme_id = mme_offset /
-				(mmMME1_QM_GLBL_CFG0 - mmMME0_QM_GLBL_CFG0);
+				(mmMME1_QM_GLBL_CFG0 - mmMME0_QM_GLBL_CFG0) / 2;
 
 		mme_qm_err_cfg = MME_QMAN_GLBL_ERR_CFG_MSG_EN_MASK;
 		if (hdev->stop_on_err) {
-- 
2.25.1