[Bug 39714] Slow and choppy 3D performace on evergreen after pm-suspend

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Aug 10 07:51:01 PDT 2011


--- Comment #3 from Michel Dänzer <michel at daenzer.net> 2011-08-10 07:51:01 PDT ---
Here's my theory on what's happening:

On suspend, all BOs located in VRAM are evicted to GTT using
radeon_bo_evict_vram() -> ttm_bo_evict_mm(). There's no mechanism to explicitly
try and move these back to VRAM after resume, so some of them probably stay in
GTT indefinitely.

Not sure offhand how to address this...

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