276652529806 drm/xe/dsb: drop the unnecessary struct i915_vma
76c7d2fff083 drm/{i915,xe}/dsb: make struct intel_dsb_buffer opaque
c96d64fd0745 drm/{i915, xe}/dsb: allocate struct intel_dsb_buffer dynamically
afe998506d7b drm/{i915, xe}/dsb: make {intel, xe}_dsb_buffer.c independent of display