[Mesa-dev] [PATCH 1/7] i965: Flush pipeline before saving SO_WRITE_OFFSETS

[Chris Wilson]

Before saving the current position of the pipeline for the render
stream, we need to flush.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99030
Testcase: piglit/arb_transform_feedback2-draw-auto
Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
 src/mesa/drivers/dri/i965/hsw_sol.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/mesa/drivers/dri/i965/hsw_sol.c b/src/mesa/drivers/dri/i965/hsw_sol.c
index e299b02270..87d4ab531b 100644
--- a/src/mesa/drivers/dri/i965/hsw_sol.c
+++ b/src/mesa/drivers/dri/i965/hsw_sol.c
@@ -201,6 +201,8 @@ hsw_pause_transform_feedback(struct gl_context *ctx,
       (struct brw_transform_feedback_object *) obj;
 
    if (brw->is_haswell) {
+      brw_emit_mi_flush(brw);
+
       /* Save the SOL buffer offset register values. */
       for (int i = 0; i < BRW_MAX_XFB_STREAMS; i++) {
          BEGIN_BATCH(3);
-- 
2.11.0