ilo: flush before setting SOL_RESET

SOL_RESET happens before bo execution.  It should not be observed by the
commands that are already in the bo.

Move the code out of the pipeline now that it submits.

src/gallium/drivers/ilo/ilo_3d.c

@@ -360,6 +360,14 @@ draw_vbo(struct ilo_3d *hw3d, const struct ilo_state_vector *vec)
    bool success;
    int max_len, before_space;
 
+   /* on GEN7+, we need SOL_RESET to reset the SO write offsets */
+   if (ilo_dev_gen(hw3d->pipeline->dev) >= ILO_GEN(7) &&
+       (vec->dirty & ILO_DIRTY_SO) && vec->so.enabled &&
+       !vec->so.append_bitmask) {
+      ilo_cp_submit(hw3d->cp, "SOL_RESET");
+      ilo_cp_set_one_off_flags(hw3d->cp, INTEL_EXEC_GEN7_SOL_RESET);
+   }
+
    ilo_3d_own_render_ring(hw3d);
 
    if (!hw3d->new_batch) {

src/gallium/drivers/ilo/ilo_3d_pipeline.c

@@ -154,11 +154,6 @@ ilo_3d_pipeline_emit_draw(struct ilo_3d_pipeline *p,
 {
    bool success;
 
-   /* on GEN7+, we need SOL_RESET to reset the SO write offsets */
-   if (ilo_dev_gen(p->dev) >= ILO_GEN(7) && (vec->dirty & ILO_DIRTY_SO) &&
-       vec->so.enabled && !vec->so.append_bitmask)
-      ilo_cp_set_one_off_flags(p->cp, INTEL_EXEC_GEN7_SOL_RESET);
-
    while (true) {
       struct ilo_builder_snapshot snapshot;