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authorEric Anholt <[email protected]>2017-05-17 13:22:39 -0700
committerEric Anholt <[email protected]>2017-05-17 14:18:29 -0700
commite8ea42d245cb6adc7f16ee4e96fd89d905d2163a (patch)
tree503621682d5145b2952994ae3b3d19766e9a5f9a /src/gallium/drivers
parent50e78cd04f6b40c4cf02774861380d843b00ebb9 (diff)
vc4: Don't allocate new BOs to avoid synchronization when they're shared.
If X11 did a software fallback to the entire screen, we would throw out the BO the screen is scanning out from and allocate a new one. Cc: [email protected]
Diffstat (limited to 'src/gallium/drivers')
-rw-r--r--src/gallium/drivers/vc4/vc4_resource.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/gallium/drivers/vc4/vc4_resource.c b/src/gallium/drivers/vc4/vc4_resource.c
index c0bfc8ff2ea..8a5398d9f78 100644
--- a/src/gallium/drivers/vc4/vc4_resource.c
+++ b/src/gallium/drivers/vc4/vc4_resource.c
@@ -165,7 +165,8 @@ vc4_resource_transfer_map(struct pipe_context *pctx,
prsc->width0 == box->width &&
prsc->height0 == box->height &&
prsc->depth0 == box->depth &&
- prsc->array_size == 1) {
+ prsc->array_size == 1 &&
+ rsc->bo->private) {
usage |= PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE;
}