[Mesa-dev] [PATCH 5/5] r600g: Invalidate texture cache when creating vertex buffers for compute

[Tom Stellard]

From: Tom Stellard <thomas.stellard at amd.com>

Compute shaders fetch data from vertex buffers via the texture cache, so
we need to make sure the texture cache is flushed.
---
 src/gallium/drivers/r600/evergreen_compute.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/gallium/drivers/r600/evergreen_compute.c b/src/gallium/drivers/r600/evergreen_compute.c
index 2749b05..e5396d8 100644
--- a/src/gallium/drivers/r600/evergreen_compute.c
+++ b/src/gallium/drivers/r600/evergreen_compute.c
@@ -96,7 +96,10 @@ static void evergreen_cs_set_vertex_buffer(
 	vb->buffer = buffer;
 	vb->user_buffer = NULL;
 
-	rctx->flags |= rctx->has_vertex_cache ? R600_CONTEXT_VTX_FLUSH : R600_CONTEXT_TEX_FLUSH;
+	/* The vertex instructions in the compute shaders use the texture cache,
+	 * so we need to invalid it. */
+	rctx->flags |= rctx->has_vertex_cache | R600_CONTEXT_VTX_FLUSH
+						| R600_CONTEXT_TEX_FLUSH;
 	state->enabled_mask |= 1 << vb_index;
 	state->dirty_mask |= 1 << vb_index;
 	r600_atom_dirty(rctx, &state->atom);
-- 
1.7.11.4