From e3e82f7a6cd532d4ad2ab5a6b6746c52e604f558 Mon Sep 17 00:00:00 2001
From: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Date: Wed, 7 Aug 2024 13:10:42 -0400
Subject: [PATCH] agx: add a comment about an unknown bit

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30633>
---
 src/asahi/compiler/agx_pack.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/asahi/compiler/agx_pack.c b/src/asahi/compiler/agx_pack.c
index c4ed56750ef..86125fc29e2 100644
--- a/src/asahi/compiler/agx_pack.c
+++ b/src/asahi/compiler/agx_pack.c
@@ -961,6 +961,10 @@ agx_pack_instr(struct util_dynarray *emission, struct util_dynarray *fixups,
       unsigned R = offset.value;
 
       bool unk1 = true;
+
+      /* This bit has weird behaviour with the interaction of the texture state
+       * index and the tilebuffer offset. Probably best not to use it for now.
+       */
       unsigned unk3 = 1;
 
       uint32_t word0 = agx_opcodes_info[I->op].encoding.exact |