linux-kernel - [PATCH 03/12] habanalabs/gaudi: return EPERM on non hard-reset

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Message-Id: <20211128193435.266534-3-ogabbay@kernel.org>
Date:   Sun, 28 Nov 2021 21:34:26 +0200
From:   Oded Gabbay <ogabbay@...nel.org>
To:     linux-kernel@...r.kernel.org
Subject: [PATCH 03/12] habanalabs/gaudi: return EPERM on non hard-reset

GAUDI supports only hard-reset. Therefore, this function should
return an error of operation not permitted.

Signed-off-by: Oded Gabbay <ogabbay@...nel.org>
---
 drivers/misc/habanalabs/gaudi/gaudi.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c
index 464d205a26ed..07e03d44930e 100644
--- a/drivers/misc/habanalabs/gaudi/gaudi.c
+++ b/drivers/misc/habanalabs/gaudi/gaudi.c
@@ -7821,12 +7821,8 @@ static void gaudi_print_fw_alive_info(struct hl_device *hdev,
 
 static int gaudi_non_hard_reset_late_init(struct hl_device *hdev)
 {
-	struct gaudi_device *gaudi = hdev->asic_specific;
-
-	/* Unmask all IRQs since some could have been received
-	 * during the soft reset
-	 */
-	return hl_fw_unmask_irq_arr(hdev, gaudi->events, sizeof(gaudi->events));
+	/* GAUDI doesn't support any reset except hard-reset */
+	return -EPERM;
 }
 
 static int gaudi_hbm_read_interrupts(struct hl_device *hdev, int device,
-- 
2.25.1