Ben Skeggs 7db2662325 drm/nv50-nvc0: make sure vma is definitely unmapped when destroying bo
Somehow fixes a misrendering + hang at GDM startup on my NVA8...

My first guess would have been stale TLB entries laying around that a new
bo then accidentally inherits.  That doesn't make a great deal of sense
however, as when we mapped the pages for the new bo the TLBs would've
gotten flushed anyway.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-02-28 15:00:16 +10:00
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