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authorChris Wilson <chris@chris-wilson.co.uk>2013-07-31 11:00:21 +0100
committerChris Wilson <chris@chris-wilson.co.uk>2013-07-31 11:01:37 +0100
commitbfe25b8110fc4d4761b57e3ec07b8467890b90a1 (patch)
treefbfc71c9018edc8b9c3393994f85a01f20f94d6e
parent493763301e995d02cb838d14348da46dd26444af (diff)
sna: Fix interaction between WT mapping of scanouts and allocating from stolen
If we allocate the scanout from stolen, we cannot then access it via the CPU - so prevent the mapping in those cases. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
-rw-r--r--src/sna/kgem.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/sna/kgem.h b/src/sna/kgem.h
index fede4d40..a6e48b62 100644
--- a/src/sna/kgem.h
+++ b/src/sna/kgem.h
@@ -578,7 +578,7 @@ static inline bool kgem_bo_can_map__cpu(struct kgem *kgem,
struct kgem_bo *bo,
bool write)
{
- if (bo->scanout && (!kgem->has_wt || write))
+ if (bo->scanout && (write || bo->purged || !kgem->has_wt))
return false;
if (kgem->has_llc)