From 66100895ff0132b21108f4650401748e8532e51a Mon Sep 17 00:00:00 2001
From: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Date: Fri, 5 Feb 2021 18:17:06 -0500
Subject: [PATCH] pan/bi: Derive M0 from pcrel_idx while packing

Assumes the usual M1=4 mode.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8354>
---
 src/panfrost/bifrost/bi_pack.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/panfrost/bifrost/bi_pack.c b/src/panfrost/bifrost/bi_pack.c
index d37e2aeb826..df3f09030fb 100644
--- a/src/panfrost/bifrost/bi_pack.c
+++ b/src/panfrost/bifrost/bi_pack.c
@@ -821,7 +821,7 @@ bi_pack_clause(bi_context *ctx, bi_clause *clause,
 
         uint64_t header = bi_pack_header(clause, next_1, next_2, tdd);
         uint64_t ec0 = (clause->constants[0] >> 4);
-        unsigned m0 = 0; /* TODO: set me so we don't break branches */
+        unsigned m0 = (clause->pcrel_idx == 0) ? 4 : 0;
 
         unsigned counts[8] = {
                 1, 2, 3, 3, 4, 5, 5, 6