habanalabs: improve error messages

This patch improves two error messages to help the user to
better understand what error occurred.

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>

drivers/misc/habanalabs/command_submission.c

@@ -261,7 +261,8 @@ static void cs_timedout(struct work_struct *work)
 	ctx_asid = cs->ctx->asid;
 
 	/* TODO: add information about last signaled seq and last emitted seq */
-	dev_err(hdev->dev, "CS %d.%llu got stuck!\n", ctx_asid, cs->sequence);
+	dev_err(hdev->dev, "User %d command submission %llu got stuck!\n",
+		ctx_asid, cs->sequence);
 
 	cs_put(cs);
 

drivers/misc/habanalabs/memory.c

@@ -109,7 +109,7 @@ static int alloc_device_memory(struct hl_ctx *ctx, struct hl_mem_in *args,
 							page_size);
 			if (!phys_pg_pack->pages[i]) {
 				dev_err(hdev->dev,
-					"ioctl failed to allocate page\n");
+					"Failed to allocate device memory (out of memory)\n");
 				rc = -ENOMEM;
 				goto page_err;
 			}