r600/sfn: reuse readport for already loaded registers

Signed-off-by: Gert Wollny <gert.wollny@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36572>
2025-07-02 11:54:20 +02:00
parent 68d5f1c456
commit 316d3a3f95
1 changed files with 7 additions and 0 deletions
@@ -163,6 +163,13 @@ AluReadportReservation::AluReadportReservation()
 bool
 AluReadportReservation::reserve_gpr(int sel, int chan, int cycle)
 {
+   for (int c = 0; c < 3; ++c) {
+      if (m_hw_gpr[c][chan] == sel) {
+         if (cycle == c)
+            return true;
+      }
+   }
+
   if (m_hw_gpr[cycle][chan] == -1) {
      m_hw_gpr[cycle][chan] = sel;
   } else if (m_hw_gpr[cycle][chan] != sel) {