68799769d8e9 drm/{i915, xe}: add shared header for VLV IOSF sideband units and registers
7350043947e4 drm/i915: move VLV IOSF sideband to display parent interface
94114b3a4203 drm/i915/dram: prefer display abstractions for VLV sideband
5eaacaa828a6 drm/i915: pass struct intel_display * to VLV sideband wrappers
5110366462bd drm/{i915, xe}: convert VLV sideband display wrappers into real functions