agx: Generate opcode list

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
Acked-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10582>

src/asahi/compiler/agx_opcodes.h.py

@@ -0,0 +1,74 @@
+template = """/*
+ * Copyright (C) 2021 Alyssa Rosenzweig <alyssa@rosenzweig.io>
+ *
+ * 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 _AGX_OPCODES_
+#define _AGX_OPCODES_
+
+#include <stdbool.h>
+#include <stdint.h>
+
+/* Listing of opcodes */
+
+enum agx_opcode {
+% for op in opcodes:
+   AGX_OPCODE_${op.upper()},
+% endfor
+   AGX_NUM_OPCODES
+};
+
+/* Runtime accessible info on each defined opcode */
+
+<% assert(len(immediates) < 32); %>
+
+enum agx_immediate {
+% for i, imm in enumerate(immediates):
+   AGX_IMMEDIATE_${imm.upper()} = (1 << ${i}),
+% endfor
+};
+
+struct agx_encoding {
+   uint64_t exact;
+   unsigned length_short : 4;
+   bool extensible : 1;
+};
+
+struct agx_opcode_info {
+   const char *name;
+   unsigned nr_srcs;
+   unsigned nr_dests;
+   enum agx_immediate immediates;
+   struct agx_encoding encoding;
+   struct agx_encoding encoding_16;
+   bool is_float : 1;
+   bool can_eliminate : 1;
+};
+
+extern const struct agx_opcode_info agx_opcodes_info[AGX_NUM_OPCODES];
+
+#endif
+"""
+
+from mako.template import Template
+from agx_opcodes import opcodes, immediates
+
+print(Template(template).render(opcodes=opcodes, immediates=immediates))

src/asahi/compiler/meson.build

@@ -23,6 +23,20 @@ libasahi_agx_files = files(
   'agx_compile.c',
 )
 
+agx_opcodes_h = custom_target(
+  'agx_opcodes.h',
+  input : ['agx_opcodes.h.py'],
+  output : 'agx_opcodes.h',
+  command : [prog_python, '@INPUT@'],
+  capture : true,
+  depend_files : files('agx_opcodes.py'),
+)
+
+idep_agx_opcodes_h = declare_dependency(
+  sources : [agx_opcodes_h],
+  include_directories : include_directories('.'),
+)
+
 libasahi_compiler = static_library(
   'asahi_compiler',
   [libasahi_agx_files],