freedreno/registers: split header build into subdirs

Instead of building the adreno/foo.xml headers from the toplevel, split
out a subdir().  This fits better with how meson likes things to be
structured.  But it does require fixing a bit about how gen_header.py
resolves imports, ie. it cannot assume the src file is at the root of
the $RNN_PATH.

This is needed for the next patch, to add support for installing the
register database for use with installed tools.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6154>

src/freedreno/computerator/a6xx.c

@@ -25,9 +25,9 @@
 
 #include "util/u_math.h"
 
-#include "registers/adreno_pm4.xml.h"
-#include "registers/adreno_common.xml.h"
-#include "registers/a6xx.xml.h"
+#include "adreno_pm4.xml.h"
+#include "adreno_common.xml.h"
+#include "a6xx.xml.h"
 
 #include "main.h"
 #include "ir3_asm.h"

src/freedreno/computerator/main.h

@@ -31,8 +31,8 @@
 #include "drm/freedreno_drmif.h"
 #include "drm/freedreno_ringbuffer.h"
 
-#include "registers/adreno_pm4.xml.h"
-#include "registers/adreno_common.xml.h"
+#include "adreno_pm4.xml.h"
+#include "adreno_common.xml.h"
 
 #define MAX_BUFS 4
 

src/freedreno/meson.build

@@ -18,7 +18,7 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-inc_freedreno = include_directories(['.', './registers', './common'])
+inc_freedreno = include_directories(['.', './registers', './registers/adreno', './common'])
 inc_freedreno_rnn = include_directories('rnn')
 
 rnn_src_path = meson.source_root() + '/src/freedreno/registers'

src/freedreno/registers/adreno/meson.build

@@ -0,0 +1,56 @@
+# Copyright © 2019 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 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.
+
+xml_files = [
+  'a2xx.xml',
+  'a3xx.xml',
+  'a4xx.xml',
+  'a5xx.xml',
+  'a6xx.xml',
+  'adreno_common.xml',
+  'adreno_pm4.xml',
+]
+
+foreach f : xml_files
+  _name = f + '.h'
+  freedreno_xml_header_files += custom_target(
+    _name,
+    input: [gen_header_py, f],
+    output: _name,
+    command: [prog_python, '@INPUT0@', rnn_src_path, '@INPUT1@'],
+    capture: true,
+  )
+endforeach
+
+freedreno_xml_header_files += custom_target(
+    'a6xx-pack.xml.h',
+    input: [gen_header_py, 'a6xx.xml'],
+    output: 'a6xx-pack.xml.h',
+    command: [prog_python, '@INPUT0@', rnn_src_path, '@INPUT1@', '--pack-structs'],
+    capture: true,
+)
+
+freedreno_xml_header_files += custom_target(
+    'adreno-pm4-pack.xml.h',
+    input: [gen_header_py, 'adreno_pm4.xml'],
+    output: 'adreno-pm4-pack.xml.h',
+    command: [prog_python, '@INPUT0@', rnn_src_path, '@INPUT1@', '--pack-structs'],
+    capture: true,
+)

src/freedreno/registers/gen_header.py

@@ -335,14 +335,7 @@ class Parser(object):
 			raise self.error(e);
 
 	def do_parse(self, filename):
-		try:
-			file = open(filename, "rb")
-		except FileNotFoundError as e:
-			# Look for the file in the parent directory if not
-			# found in same directory:
-			path = os.path.dirname(filename)
-			base = os.path.basename(filename)
-			file = open(path + "/../" + base, "rb")
+		file = open(filename, "rb")
 		parser = xml.parsers.expat.ParserCreate()
 		self.stack.append((parser, filename))
 		parser.StartElementHandler = self.start_element
@@ -351,8 +344,8 @@ class Parser(object):
 		self.stack.pop()
 		file.close()
 
-	def parse(self, filename):
-		self.path = os.path.dirname(filename)
+	def parse(self, rnn_path, filename):
+		self.path = rnn_path
 		self.stack = []
 		self.do_parse(filename)
 
@@ -373,7 +366,7 @@ class Parser(object):
 
 	def start_element(self, name, attrs):
 		if name == "import":
-			filename = os.path.basename(attrs["file"])
+			filename = attrs["file"]
 			self.do_parse(os.path.join(self.path, filename))
 		elif name == "domain":
 			self.current_domain = attrs["name"]
@@ -449,8 +442,9 @@ class Parser(object):
 
 def main():
 	p = Parser()
-	xml_file = sys.argv[1]
-	if len(sys.argv) > 2 and sys.argv[2] == '--pack-structs':
+	rnn_path = sys.argv[1]
+	xml_file = sys.argv[2]
+	if len(sys.argv) > 3 and sys.argv[3] == '--pack-structs':
 		do_structs = True
 		guard = str.replace(os.path.basename(xml_file), '.', '_').upper() + '_STRUCTS'
 	else:
@@ -460,7 +454,7 @@ def main():
 	print("#ifndef %s\n#define %s\n" % (guard, guard))
 
 	try:
-		p.parse(xml_file)
+		p.parse(rnn_path, xml_file)
 	except Error as e:
 		print(e)
 		exit(1)

src/freedreno/registers/meson.build

@@ -19,38 +19,22 @@
 # SOFTWARE.
 
 xml_files = [
-  'a2xx.xml',
-  'a3xx.xml',
-  'a4xx.xml',
-  'a5xx.xml',
-  'a6xx.xml',
-  'adreno_common.xml',
-  'adreno_pm4.xml',
+  'adreno.xml',
 ]
 
+gen_header_py = files('gen_header.py')
+
 freedreno_xml_header_files = []
+
 foreach f : xml_files
   _name = f + '.h'
   freedreno_xml_header_files += custom_target(
     _name,
-    input : ['gen_header.py', 'adreno/' + f],
-    output : _name,
-    command : [prog_python, '@INPUT@'],
-    capture : true,
+    input: [gen_header_py, f],
+    output: _name,
+    command: [prog_python, '@INPUT0@', rnn_src_path, '@INPUT1@'],
+    capture: true,
   )
 endforeach
 
-freedreno_xml_header_files += custom_target(
-    'a6xx-pack.xml.h',
-    input : ['gen_header.py', 'adreno/a6xx.xml'],
-    output : 'a6xx-pack.xml.h',
-    command : [prog_python, '@INPUT@', '--pack-structs'],
-    capture : true,
-  )
-freedreno_xml_header_files += custom_target(
-    'adreno-pm4-pack.xml.h',
-     input : ['gen_header.py', 'adreno/adreno_pm4.xml'],
-     output : 'adreno-pm4-pack.xml.h',
-     command : [prog_python, '@INPUT@', '--pack-structs'],
-     capture : true,
-  )
+subdir('adreno')

src/freedreno/vulkan/tu_cmd_buffer.c

@@ -27,8 +27,8 @@
 
 #include "tu_private.h"
 
-#include "registers/adreno_pm4.xml.h"
-#include "registers/adreno_common.xml.h"
+#include "adreno_pm4.xml.h"
+#include "adreno_common.xml.h"
 
 #include "vk_format.h"
 

src/freedreno/vulkan/tu_cs.h

@@ -25,7 +25,7 @@
 
 #include "tu_private.h"
 
-#include "registers/adreno_pm4.xml.h"
+#include "adreno_pm4.xml.h"
 
 void
 tu_cs_init(struct tu_cs *cs,

src/freedreno/vulkan/tu_formats.c

@@ -25,8 +25,8 @@
 
 #include "tu_private.h"
 
-#include "registers/adreno_common.xml.h"
-#include "registers/a6xx.xml.h"
+#include "adreno_common.xml.h"
+#include "a6xx.xml.h"
 
 #include "vk_format.h"
 #include "vk_util.h"

src/freedreno/vulkan/tu_query.c

@@ -31,9 +31,9 @@
 #include <string.h>
 #include <unistd.h>
 
-#include "registers/adreno_pm4.xml.h"
-#include "registers/adreno_common.xml.h"
-#include "registers/a6xx.xml.h"
+#include "adreno_pm4.xml.h"
+#include "adreno_common.xml.h"
+#include "a6xx.xml.h"
 
 #include "nir/nir_builder.h"
 #include "util/os_time.h"