habanalabs/gaudi: set the correct cpu_id on MME2_QM failure
authorKoby Elbaz <kelbaz@habana.ai>
Wed, 19 May 2021 12:16:52 +0000 (15:16 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 20 Jul 2021 14:05:43 +0000 (16:05 +0200)
[ Upstream commit b92c637c5f5ef7e3e21dbc7bfa7f1999450f3902 ]

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@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/misc/habanalabs/gaudi/gaudi.c

index 68f661aca3ff2e387b7af88d476957b06aeb2d3e..044b2ae196f93e0abc7fad106e451e6bfdda6869 100644 (file)
@@ -2164,7 +2164,7 @@ 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) {