[Intel-xe] [PATCH v6 0/2] Some small-bar prep patches

[Matthew Auld]

Split from the small-bar series. Plus one extra patch to fix the overloaded
meaning behind xe_ttm_stolen_cpu_inaccessible(), as pointed out by Maarten.

v2: Apply s/lmem/vram/ for the entire driver
v3: Try to simplfy the stolen stuff by removing cpu_inaccessible()
v4: Rebase, plus one small fix to buddy code with missing PAGE_SHIFT, and one
    new s/lmem/vram/
v5: Merged the reviewed bits. Some fixes/improvements to the buddy code
v6: Another fix to the buddy code.

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2.39.2