drm/amdgpu: fix buffer funcs setting order on suspend

We need to disable this after the last eviction
call, but before we disable the SDMA IP.

Fixes: b704380 ("drm/amdgpu: move buffer funcs setting up a level")
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Luben Tuikov <[email protected]>
Tested-by: Phillip Susi <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Cc: Phillip Susi <[email protected]>
Cc: Luben Tuikov <[email protected]>

Author: alexdeucher

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

@@ -4600,6 +4600,8 @@ int amdgpu_device_suspend(struct drm_device *dev, bool fbcon)
 	if (r)
 		return r;
 
+	amdgpu_ttm_set_buffer_funcs_status(adev, false);
+
 	amdgpu_fence_driver_hw_fini(adev);
 
 	amdgpu_device_ip_suspend_phase2(adev);