[PATCH 02/12] accel/habanalabs: update pending reset flags with new reset requests

[Oded Gabbay]

From: Tomer Tayar <ttayar at habana.ai>

If hl_device_cond_reset() is called while a reset is already pending but
hasn't started, the reset request will be dropped.
If the flags of the new request are more severe, e.g. a hard reset while
the pending reset is a compute reset, the eventual reset won't be
suitable for the device status.

To prevent such cases, update the pending reset flags with the new
requests flags before the requests are dropped.

Signed-off-by: Tomer Tayar <ttayar at habana.ai>
Reviewed-by: Oded Gabbay <ogabbay at kernel.org>
Signed-off-by: Oded Gabbay <ogabbay at kernel.org>
---
 drivers/accel/habanalabs/common/device.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/accel/habanalabs/common/device.c b/drivers/accel/habanalabs/common/device.c
index 1e61e79c42e5..993305871292 100644
--- a/drivers/accel/habanalabs/common/device.c
+++ b/drivers/accel/habanalabs/common/device.c
@@ -1937,8 +1937,10 @@ int hl_device_cond_reset(struct hl_device *hdev, u32 flags, u64 event_mask)
 		goto device_reset;
 	}
 
-	if (hdev->reset_info.watchdog_active)
+	if (hdev->reset_info.watchdog_active) {
+		hdev->device_release_watchdog_work.flags |= flags;
 		goto out;
+	}
 
 	hdev->device_release_watchdog_work.flags = flags;
 	dev_dbg(hdev->dev, "Device is going to be hard-reset in %u sec unless being released\n",
-- 
2.40.1