From 3c634e956bcd45b06e806efdeb31e22dac8d3dbb Mon Sep 17 00:00:00 2001
From: Christian Gmeiner <christian.gmeiner@gmail.com>
Date: Tue, 8 Jun 2021 18:21:47 +0200
Subject: [PATCH] freedreno/isa: generate isaspec-decode.h

Generate a 'glue' header file to be able to support different
ISAs.

Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11321>
---
 src/freedreno/isa/decode.py   | 41 +++++++++++++++++++++++++++++++++++++++--
 src/freedreno/isa/meson.build |  2 +-
 2 files changed, 40 insertions(+), 3 deletions(-)

diff --git a/src/freedreno/isa/decode.py b/src/freedreno/isa/decode.py
index d920b98..01a3e4e 100644
--- a/src/freedreno/isa/decode.py
+++ b/src/freedreno/isa/decode.py
@@ -227,12 +227,49 @@ typedef struct {
 
 """
 
+glue = """\
+/* Copyright (C) 2020 Google, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef _${guard}_
+#define _${guard}_
+
+#include "${isa}"
+
+#endif /* _${guard}_ */
+
+"""
+
 xml = sys.argv[1]
-dst_c = sys.argv[2]
-dst_h = sys.argv[3]
+glue_h = sys.argv[2]
+dst_c = sys.argv[3]
+dst_h = sys.argv[4]
 
 isa = ISA(xml)
 
+with open(glue_h, 'w') as f:
+    guard = os.path.basename(glue_h).upper().replace("-", "_").replace(".", "_")
+    f.write(Template(glue).render(guard=guard, isa=os.path.basename(dst_h)))
+
 with open(dst_c, 'w') as f:
     f.write(Template(template).render(isa=isa))
 
diff --git a/src/freedreno/isa/meson.build b/src/freedreno/isa/meson.build
index 0f050b7..57a06c6 100644
--- a/src/freedreno/isa/meson.build
+++ b/src/freedreno/isa/meson.build
@@ -34,7 +34,7 @@ isa_depend_files = [
 ir3_isa_c = custom_target(
   'ir3-isa.c',
   input: ['decode.py', 'ir3.xml'],
-  output: ['ir3-isa.c', 'ir3-isa.h'],
+  output: ['isaspec-isa.h', 'ir3-isa.c', 'ir3-isa.h'],
   command: [
     prog_python, '@INPUT@', '@OUTPUT@'
   ],
-- 
2.7.4