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Message-Id: <20240109143656.768980-2-ogabbay@kernel.org>
Date: Tue, 9 Jan 2024 16:36:56 +0200
From: Oded Gabbay <ogabbay@...nel.org>
To: dri-devel@...ts.freedesktop.org,
linux-kernel@...r.kernel.org
Cc: Tomer Tayar <ttayar@...ana.ai>
Subject: [PATCH 2/2] accel/habanalabs/gaudi2: fail memory memset when failing to copy QM packet to device
From: Tomer Tayar <ttayar@...ana.ai>
gaudi2_memset_memory_chunk_using_edma_qm() calls the access_dev_mem()
ASIC function, but ignores its return value.
Add this missing check.
Signed-off-by: Tomer Tayar <ttayar@...ana.ai>
Reviewed-by: Oded Gabbay <ogabbay@...nel.org>
Signed-off-by: Oded Gabbay <ogabbay@...nel.org>
---
drivers/accel/habanalabs/gaudi2/gaudi2.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/accel/habanalabs/gaudi2/gaudi2.c b/drivers/accel/habanalabs/gaudi2/gaudi2.c
index 05e2170c815e..1f061209ae21 100644
--- a/drivers/accel/habanalabs/gaudi2/gaudi2.c
+++ b/drivers/accel/habanalabs/gaudi2/gaudi2.c
@@ -10345,14 +10345,20 @@ static int gaudi2_memset_memory_chunk_using_edma_qm(struct hl_device *hdev,
pkt_size = sizeof(struct packet_lin_dma);
- for (i = 0; i < 3; i++)
+ for (i = 0; i < 3; i++) {
rc = hdev->asic_funcs->access_dev_mem(hdev, PCI_REGION_DRAM,
phys_addr + (i * sizeof(u64)),
((u64 *)(lin_dma_pkt)) + i, DEBUGFS_WRITE64);
+ if (rc) {
+ dev_err(hdev->dev, "Failed to copy lin_dma packet to HBM (%#llx)\n",
+ phys_addr);
+ return rc;
+ }
+ }
rc = hl_hw_queue_send_cb_no_cmpl(hdev, hw_queue_id, pkt_size, phys_addr);
if (rc)
- dev_err(hdev->dev, "Failed to send lin dma packet to H/W queue %d\n",
+ dev_err(hdev->dev, "Failed to send lin_dma packet to H/W queue %d\n",
hw_queue_id);
return rc;
--
2.34.1
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