From 98e8781f008372057bd5cb059ca6b507371e473d Mon Sep 17 00:00:00 2001
From: Oded Gabbay <ogabbay@kernel.org>
Date: Wed, 9 Dec 2020 23:07:58 +0200
Subject: [PATCH] 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>
---
drivers/misc/habanalabs/gaudi/gaudi.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
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;
}
--
2.30.2