On Tue, 4 Sep 2012 21:02:54 +0100 Chris Wilson <chris at chris-wilson.co.uk> wrote: > We need to refcount our pages in order to prevent reaping them at > inopportune times, such as when they currently vmapped or exported to > another driver. However, we also wish to keep the lazy deallocation of > our pages so we need to take a pin/unpinned approach rather than a > simple refcount. > > Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk> > --- Why do we need the pages pinned if the object is vmapped? Shouldn't we only pin if a vmapped object is currently being used by the GPU or mapped through the GTT? Or is that what you meant? Assuming that's correct: Reviewed-by: Jesse Barnes <jbarnes at virtuousgeek.org> -- Jesse Barnes, Intel Open Source Technology Center
