drm/amdgpu: bypass lru touch for KIQ ring submission

KIQ ring submission is used for register accessing on SRIOV
VF that could happen both in irq enabled and irq disabled cases.
Inversion lock could happen on adev->ring_lru_list_lock, while
this operation is useless and just adds overhead in this use
case.
Signed-off-by: NPixel Ding <Pixel.Ding@amd.com>
Reviewed-by: NMonk Liu <Monk.Liu@amd.com>
Reviewed-by: NChristian König <christian.koenig@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

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

@@ -136,7 +136,8 @@ void amdgpu_ring_commit(struct amdgpu_ring *ring)
 	if (ring->funcs->end_use)
 		ring->funcs->end_use(ring);
 
-	amdgpu_ring_lru_touch(ring->adev, ring);
+	if (ring->funcs->type != AMDGPU_RING_TYPE_KIQ)
+		amdgpu_ring_lru_touch(ring->adev, ring);
 }
 
 /**