tu: Add debug flag to force disable FDM

Useful to check if a bug is caused by FDM. Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35837>
2025-06-30 12:30:12 -04:00
parent 750dd55a4a
commit 6579b378ca
3 changed files with 5 additions and 0 deletions
@@ -516,6 +516,9 @@ tu_render_pass_calc_views(struct tu_render_pass *pass)
 static bool
 tu_render_pass_disable_fdm(struct tu_device *dev, struct tu_render_pass *pass)
 {
+   if (TU_DEBUG(NOFDM))
+      return true;
+
   for (uint32_t i = 0; i < pass->attachment_count; i++) {
      struct tu_render_pass_attachment *att = &pass->attachments[i];

@@ -52,6 +52,7 @@ static const struct debug_control tu_debug_options[] = {
   { "fdmoffset", TU_DEBUG_FDM_OFFSET },
   { "check_cmd_buffer_status", TU_DEBUG_CHECK_CMD_BUFFER_STATUS },
   { "comm", TU_DEBUG_COMM },
+   { "nofdm", TU_DEBUG_NOFDM },
   { NULL, 0 }
 };

@@ -72,6 +72,7 @@ enum tu_debug_flags : uint64_t
   TU_DEBUG_FDM_OFFSET               = BITFIELD64_BIT(31),
   TU_DEBUG_CHECK_CMD_BUFFER_STATUS  = BITFIELD64_BIT(32),
   TU_DEBUG_COMM                     = BITFIELD64_BIT(33),
+   TU_DEBUG_NOFDM                    = BITFIELD64_BIT(34),
 };

 struct tu_env {