From 8745ca5efb2aad0b6591d9b8cd48573ea49c929d Mon Sep 17 00:00:00 2001
From: Jonathan Kim <jonathan.kim@amd.com>
Date: Thu, 9 Oct 2025 10:48:09 -0400
Subject: [PATCH 5320/5403] drm/amdgpu: fix initialization of doorbell array
 for detect and hang

Initialized doorbells should be set to invalid rather than 0 to prevent
driver from over counting hung doorbells since it checks against the
invalid value to begin with.

Signed-off-by: Jonathan Kim <jonathan.kim@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
index 5bf9be073cdd..30e1fb510600 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
@@ -409,7 +409,7 @@ int amdgpu_mes_detect_and_reset_hung_queues(struct amdgpu_device *adev,
 		return -EINVAL;
 
 	/* Clear the doorbell array before detection */
-	memset(adev->mes.hung_queue_db_array_cpu_addr, 0,
+	memset(adev->mes.hung_queue_db_array_cpu_addr, AMDGPU_MES_INVALID_DB_OFFSET,
 		adev->mes.hung_queue_db_array_size * sizeof(u32));
 	input.queue_type = queue_type;
 	input.detect_only = detect_only;
-- 
2.54.0

