Module: Mesa
Branch: master
Commit: fc67375379ec26eef63f8e530724cd53c97bc3d0
URL:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=fc67375379ec26eef63f8e530724cd53c97bc3d0
Author: Bas Nieuwenhuizen <b...@basnieuwenhuizen.nl>
Date: Mon Apr 11 15:53:43 2016 +0200
radeonsi: Synchronize a streamout write after read hazard.
Signed-off-by: Bas Nieuwenhuizen <b...@basnieuwenhuizen.nl>
Reviewed-by: Nicolai Hähnle <nicolai.haeh...@amd.com>
Reviewed-by: Marek Olšák <marek.ol...@amd.com>
---
src/gallium/drivers/radeonsi/si_descriptors.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/src/gallium/drivers/radeonsi/si_descriptors.c
b/src/gallium/drivers/radeonsi/si_descriptors.c
index 6dd2e4f..b3792c2 100644
--- a/src/gallium/drivers/radeonsi/si_descriptors.c
+++ b/src/gallium/drivers/radeonsi/si_descriptors.c
@@ -883,6 +883,12 @@ static void si_set_streamout_targets(struct pipe_context
*ctx,
SI_CONTEXT_VS_PARTIAL_FLUSH;
}
+ /* All readers of the streamout targets need to be finished before we
can
+ * start writing to the targets.
+ */
+ if (num_targets)
+ sctx->b.flags |= SI_CONTEXT_PS_PARTIAL_FLUSH;
+
/* Streamout buffers must be bound in 2 places:
* 1) in VGT by setting the VGT_STRMOUT registers
* 2) as shader resources
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