drm/amdgpu/vcn: mmsch_v4_0_3 requires doorbell on 32 byte boundary

Align on 32 byte boundary.
Signed-off-by: Samir Dhume <samir.dhume@amd.com>
Acked-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c

@@ -111,9 +111,16 @@ static int vcn_v4_0_3_sw_init(void *handle)
 
 		ring = &adev->vcn.inst[i].ring_enc[0];
 		ring->use_doorbell = true;
-		ring->doorbell_index =
-			(adev->doorbell_index.vcn.vcn_ring0_1 << 1) +
-			9 * vcn_inst;
+
+		if (!amdgpu_sriov_vf(adev))
+			ring->doorbell_index =
+				(adev->doorbell_index.vcn.vcn_ring0_1 << 1) +
+				9 * vcn_inst;
+		else
+			ring->doorbell_index =
+				(adev->doorbell_index.vcn.vcn_ring0_1 << 1) +
+				32 * vcn_inst;
+
 		ring->vm_hub = AMDGPU_MMHUB0(adev->vcn.inst[i].aid_id);
 		sprintf(ring->name, "vcn_unified_%d", adev->vcn.inst[i].aid_id);
 		r = amdgpu_ring_init(adev, ring, 512, &adev->vcn.inst->irq, 0,