linux-kernel - [PATCH 09/10] accel/habanalabs: print error code when mapping fails

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Date:   Wed, 15 Nov 2023 18:39:11 +0200
From:   Oded Gabbay <ogabbay@...nel.org>
To:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Cc:     Dani Liberman <dliberman@...ana.ai>
Subject: [PATCH 09/10] accel/habanalabs: print error code when mapping fails

From: Dani Liberman <dliberman@...ana.ai>

Failure to map is considered a non-trivial error and we need to notify
the user about it.

Signed-off-by: Dani Liberman <dliberman@...ana.ai>
Reviewed-by: Oded Gabbay <ogabbay@...nel.org>
Signed-off-by: Oded Gabbay <ogabbay@...nel.org>
---
 drivers/accel/habanalabs/common/memory.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/accel/habanalabs/common/memory.c b/drivers/accel/habanalabs/common/memory.c
index 0b8689fe0b64..3348ad12c237 100644
--- a/drivers/accel/habanalabs/common/memory.c
+++ b/drivers/accel/habanalabs/common/memory.c
@@ -955,8 +955,8 @@ static int map_phys_pg_pack(struct hl_ctx *ctx, u64 vaddr,
 				(i + 1) == phys_pg_pack->npages);
 		if (rc) {
 			dev_err(hdev->dev,
-				"map failed for handle %u, npages: %llu, mapped: %llu",
-				phys_pg_pack->handle, phys_pg_pack->npages,
+				"map failed (%d) for handle %u, npages: %llu, mapped: %llu\n",
+				rc, phys_pg_pack->handle, phys_pg_pack->npages,
 				mapped_pg_cnt);
 			goto err;
 		}
@@ -1186,7 +1186,8 @@ static int map_device_va(struct hl_ctx *ctx, struct hl_mem_in *args, u64 *device
 
 	rc = map_phys_pg_pack(ctx, ret_vaddr, phys_pg_pack);
 	if (rc) {
-		dev_err(hdev->dev, "mapping page pack failed for handle %u\n", handle);
+		dev_err(hdev->dev, "mapping page pack failed (%d) for handle %u\n",
+			rc, handle);
 		mutex_unlock(&hdev->mmu_lock);
 		goto map_err;
 	}
-- 
2.34.1