mesa/st: don't call finish in st_glFlush()

It is not the state tracker's responsibilty to inject sleeps and
pessimize performance in the hope of avoiding buffer synchronization
issues in buggy drivers.

Calling finish() here will just hide problems that need to be fixed
elsewhere.

1 files changed, 7 insertions, 4 deletions

diff --git a/src/mesa/state_tracker/st_cb_flush.c b/src/mesa/state_tracker/st_cb_flush.c
index f8621ab125f..4fdb6730879 100644
--- a/src/mesa/state_tracker/st_cb_flush.c
+++ b/src/mesa/state_tracker/st_cb_flush.c
@@ -117,13 +117,16 @@ static void st_glFlush(GLcontext *ctx)
 {
    struct st_context *st = ctx->st;
 
+   /* Don't call st_finish() here.  It is not the state tracker's
+    * responsibilty to inject sleeps in the hope of avoiding buffer
+    * synchronization issues.  Calling finish() here will just hide
+    * problems that need to be fixed elsewhere.
+    */
+   st_flush(st, PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_FRAME, NULL);
+
    if (is_front_buffer_dirty(st)) {
-      st_finish(st);
       display_front_buffer(st);
    }
-   else {
-      st_flush(st, PIPE_FLUSH_RENDER_CACHE, NULL);
-   }
 }