From 90867e82040c35e8a94af78c1992d76b326bef17 Mon Sep 17 00:00:00 2001
From: Alyssa Rosenzweig <alyssa@collabora.com>
Date: Tue, 22 Mar 2022 21:53:04 -0400
Subject: [PATCH] pan/bi: Add ATOM_RETURN pseudo-instruction

Allows modeling Valhall's atomics better.

Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15223>
---
 src/panfrost/bifrost/ISA.xml | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/src/panfrost/bifrost/ISA.xml b/src/panfrost/bifrost/ISA.xml
index 0fad891a..d64b4c1 100644
--- a/src/panfrost/bifrost/ISA.xml
+++ b/src/panfrost/bifrost/ISA.xml
@@ -8272,6 +8272,30 @@
     <immediate name="sr_count" size="4" pseudo="true"/>
   </ins>
 
+  <ins name="+ATOM.i32" pseudo="true" staging="r=sr_count" message="atomic">
+    <src start="0"/>
+    <src start="3"/>
+    <mod name="atom_opc" start="9" size="4">
+      <reserved/>
+      <reserved/>
+      <opt>aadd</opt>
+      <reserved/>
+      <reserved/>
+      <reserved/>
+      <reserved/>
+      <reserved/>
+      <opt>asmin</opt>
+      <opt>asmax</opt>
+      <opt>aumin</opt>
+      <opt>aumax</opt>
+      <opt>aand</opt>
+      <opt>aor</opt>
+      <opt>axor</opt>
+    </mod>
+    <!-- not actually encoded, but used for IR -->
+    <immediate name="sr_count" size="4" pseudo="true"/>
+  </ins>
+
   <!-- *CUBEFACE1/+CUBEFACE2 pair, two destinations, scheduler lowered -->
   <ins name="+CUBEFACE" pseudo="true" dests="2">
     <src start="0"/>
-- 
2.7.4