From fc67375379ec26eef63f8e530724cd53c97bc3d0 Mon Sep 17 00:00:00 2001 From: Bas Nieuwenhuizen Date: Mon, 11 Apr 2016 15:53:43 +0200 Subject: [PATCH] radeonsi: Synchronize a streamout write after read hazard. MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Signed-off-by: Bas Nieuwenhuizen Reviewed-by: Nicolai Hähnle Reviewed-by: Marek Olšák --- 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 6dd2e4fd89d..b3792c23474 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 -- 2.30.2