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>
2024-08-07 13:10:42 -04:00
parent 8b29f0a762
commit e3e82f7a6c
1 changed files with 4 additions and 0 deletions
@@ -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 |