From: Oded Gabbay <ogabbay@kernel.org>
Date: Wed, 9 Dec 2020 21:07:58 +0000 (+0200)
Subject: habanalabs/gaudi: retry loading TPC f/w on -EINTR
X-Git-Tag: howlett/maple/20220722_2~4025^2~5^2~4
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=98e8781f008372057bd5cb059ca6b507371e473d;p=users%2Fjedix%2Flinux-maple.git

habanalabs/gaudi: retry loading TPC f/w on -EINTR

If loading the firmware file for the TPC f/w was interrupted, try
to do it again, up to 5 times.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
---

diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c
index 88d0e4356d594..8c09e4466af8c 100644
--- a/drivers/misc/habanalabs/gaudi/gaudi.c
+++ b/drivers/misc/habanalabs/gaudi/gaudi.c
@@ -838,11 +838,17 @@ static int gaudi_init_tpc_mem(struct hl_device *hdev)
 	size_t fw_size;
 	void *cpu_addr;
 	dma_addr_t dma_handle;
-	int rc;
+	int rc, count = 5;
 
+again:
 	rc = request_firmware(&fw, GAUDI_TPC_FW_FILE, hdev->dev);
+	if (rc == -EINTR && count-- > 0) {
+		msleep(50);
+		goto again;
+	}
+
 	if (rc) {
-		dev_err(hdev->dev, "Firmware file %s is not found!\n",
+		dev_err(hdev->dev, "Failed to load firmware file %s\n",
 				GAUDI_TPC_FW_FILE);
 		goto out;
 	}