panvk: define cmdbuf begin/end tracepoints

Add panvk_tracepoints.py with trace points for cmdbuf begin/end.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32360>

src/panfrost/vulkan/meson.build

@@ -18,6 +18,19 @@ panvk_entrypoints = custom_target(
   depend_files : vk_entrypoints_gen_depend_files,
 )
 
+panvk_tracepoints = custom_target(
+  'panvk_tracepoints.[ch]',
+  input: 'panvk_tracepoints.py',
+  output: ['panvk_tracepoints.h', 'panvk_tracepoints.c'],
+  command: [
+    prog_python, '@INPUT@',
+    '--import-path', join_paths(dir_source_root, 'src/util/perf/'),
+    '--utrace-hdr', '@OUTPUT0@',
+    '--utrace-src', '@OUTPUT1@',
+  ],
+  depend_files: u_trace_py,
+)
+
 libpanvk_files = files(
   'panvk_buffer.c',
   'panvk_cmd_pool.c',
@@ -75,6 +88,7 @@ csf_files = [
 
 common_per_arch_files = [
   panvk_entrypoints[0],
+  panvk_tracepoints[0],
   'panvk_vX_blend.c',
   'panvk_vX_buffer_view.c',
   'panvk_vX_cmd_fb_preload.c',
@@ -148,7 +162,7 @@ endif
 
 libvulkan_panfrost = shared_library(
   'vulkan_panfrost',
-  [libpanvk_files, panvk_entrypoints],
+  [libpanvk_files, panvk_entrypoints, panvk_tracepoints],
   include_directories : [
     inc_include,
     inc_src,

src/panfrost/vulkan/panvk_tracepoints.py

@@ -0,0 +1,63 @@
+# Copyright 2024 Google LLC
+# SPDX-License-Identifier: MIT
+
+import argparse
+import sys
+
+
+def parse_args():
+    parser = argparse.ArgumentParser()
+    parser.add_argument('-p', '--import-path', required=True)
+    parser.add_argument('--utrace-src', required=True)
+    parser.add_argument('--utrace-hdr', required=True)
+    return parser.parse_args()
+
+
+args = parse_args()
+sys.path.insert(0, args.import_path)
+
+from u_trace import ForwardDecl, Header, HeaderScope  # noqa: E402
+from u_trace import Tracepoint  # noqa: E402
+from u_trace import TracepointArg as Arg  # noqa: E402
+from u_trace import TracepointArgStruct as ArgStruct  # noqa: E402
+from u_trace import utrace_generate  # noqa: E402
+
+Header('vulkan/vulkan_core.h', scope=HeaderScope.HEADER)
+
+
+def begin_end_tp(name, args=[], tp_struct=None):
+    Tracepoint(
+        f'begin_{name}',
+    )
+
+    Tracepoint(
+        f'end_{name}',
+        args=args,
+        tp_struct=tp_struct,
+    )
+
+
+def define_tracepoints():
+    begin_end_tp(
+        'cmdbuf',
+        args=[
+            Arg(
+                type='VkCommandBufferUsageFlags',
+                var='flags',
+                c_format='0x%x',
+            ),
+        ],
+    )
+
+
+def generate_code():
+    utrace_generate(cpath=args.utrace_src, hpath=args.utrace_hdr, ctx_param=None)
+
+
+def main():
+    define_tracepoints()
+    generate_code()
+
+
+if __name__ == '__main__':
+    main()