update_phantom_vp_position_params
dc->hwss.update_phantom_vp_position(params->update_phantom_vp_position_params.dc,
params->update_phantom_vp_position_params.context,
params->update_phantom_vp_position_params.pipe_ctx);
seq_state->steps[*seq_state->num_steps].params.update_phantom_vp_position_params.dc = dc;
seq_state->steps[*seq_state->num_steps].params.update_phantom_vp_position_params.context = context;
seq_state->steps[*seq_state->num_steps].params.update_phantom_vp_position_params.pipe_ctx = pipe_ctx;
struct update_phantom_vp_position_params update_phantom_vp_position_params;