[Intel-gfx] [PATCH] drm/i915: Unpin vma iomapping when fbdev is destroyed

[Chris Wilson]

Quoting Tvrtko Ursulin (2017-07-04 10:46:40)
> From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
> 
> If we don't release the iomapping we are not able to unpin the
> vma which then gets leaked.

Oh, we still do unpin the vma on closing the object and we don't hold
any extra object reference for the iomap. It is still a good patch for
the symmetry, except it doesn't do what you say :-)

> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
> Cc: Chris Wilson <chris at chris-wilson.co.uk>
> ---
> Some time last year we talked about a pending patch to get rid
> of the fbdev VMA leak. I lost track of what happened with that.

That was fixed by the intel_unpin_fb_vma() in there.
-Chris