pan/bi: Don't set the back-to-back bit yet

This is bad for performance but we can't assume it's true without some
analysis, which we presently don't do. Leave it for future work and
don't break the present.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4396>

diff --git a/src/panfrost/bifrost/bi_schedule.c b/src/panfrost/bifrost/bi_schedule.c
index 0f72fc12713524a3d348bd074bb9810d8fbaa0b3..b3f7ca605c3acc7b5754a0f39a7190abfe0e3158 100644 (file)
--- a/src/panfrost/bifrost/bi_schedule.c
+++ b/src/panfrost/bifrost/bi_schedule.c
@@ -139,7 +139,7 @@ bi_schedule(bi_context *ctx)
 
                         ids = ids & 1;
                         last_id = u->scoreboard_id;
-                        u->back_to_back = true;
+                        u->back_to_back = false;
 
                         u->constant_count = 1;
                         u->constants[0] = ins->constant.u64;