• Ben Widawsky's avatar
    drm/i915: Embed drm_mm_node in i915 gem obj · c6cfb325
    Ben Widawsky authored
    Embedding the node in the obj is more natural in the transition to VMAs
    which will also have embedded nodes. This change also helps transition
    away from put_block to remove node.
    
    Though it's quite an uncommon occurrence, it's somewhat convenient to not
    fail at bind time because we cannot allocate the node. Though in
    practice there are other allocations (like the request structure) which
    would probably make this point not terribly useful.
    
    Quoting Daniel:
    Note that the only difference between put_block and remove_node is
    that the former fills up the preallocation cache. Which we don't need
    anyway and hence is just wasted space.
    
    v2: Clean up the stolen preallocation code.
    Rebased on the reserve_node patches
    renames ggtt_ stuff to gtt_ stuff
    WARN_ON if the object is already bound (which doesn't mean it's in the
    bound list, tricky)
    Signed-off-by: default avatarBen Widawsky <ben@bwidawsk.net>
    Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
    c6cfb325
i915_gem_gtt.c 23.7 KB