This is a note to let you know that I've just added the patch titled
habanalabs/gaudi: set the correct cpu_id on MME2_QM failure
to the 5.13-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
habanalabs-gaudi-set-the-correct-cpu_id-on-mme2_qm-f.patch
and it can be found in the queue-5.13 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit a328ed7a9c882035c306b3ec1a225bfb22f60887
Author: Koby Elbaz <kelbaz@xxxxxxxxx>
Date: Wed May 19 15:16:52 2021 +0300
habanalabs/gaudi: set the correct cpu_id on MME2_QM failure
[ 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@xxxxxxxxx>
Reviewed-by: Oded Gabbay <ogabbay@xxxxxxxxxx>
Signed-off-by: Oded Gabbay <ogabbay@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c
index 9e4a6bb3acd1..f6a56d5f2ae7 100644
--- a/drivers/misc/habanalabs/gaudi/gaudi.c
+++ b/drivers/misc/habanalabs/gaudi/gaudi.c
@@ -2834,7 +2834,7 @@ 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) {
