From: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Date: Tue, 31 Mar 2020 17:05:02 +0000 (-0400)
Subject: pan/bi: Don't set the back-to-back bit yet
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ae4f48b2bc3b9e1969be738fe230a7b5a880bd0d;p=mesa.git

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 0f72fc12713..b3f7ca605c3 100644
--- 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;