From f63ffc18e79a94ff7a4c418341e644cc3894a03a Mon Sep 17 00:00:00 2001
From: Jason Ekstrand <jason@jlekstrand.net>
Date: Fri, 18 Sep 2020 18:11:10 -0500
Subject: [PATCH] intel/fs/swsb: SCHEDULING_FENCE only emits SYNC_NOP

It's not really unordered in the sense that it can still stall on
ordered things and we don't need a SYNC_NOP for that because it is a
SYNC_NOP.  However, it also doesn't count when computing instruction
distances.

Fixes: 18e72ee2108 "intel/fs: Add FS_OPCODE_SCHEDULING_FENCE"
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6781>
---
 src/intel/compiler/brw_fs_scoreboard.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/intel/compiler/brw_fs_scoreboard.cpp b/src/intel/compiler/brw_fs_scoreboard.cpp
index 0e810218db6..899b47542ba 100644
--- a/src/intel/compiler/brw_fs_scoreboard.cpp
+++ b/src/intel/compiler/brw_fs_scoreboard.cpp
@@ -77,6 +77,7 @@ namespace {
       case BRW_OPCODE_DO:
       case SHADER_OPCODE_UNDEF:
       case FS_OPCODE_PLACEHOLDER_HALT:
+      case FS_OPCODE_SCHEDULING_FENCE:
          return 0;
       default:
          /* Note that the following is inaccurate for virtual instructions