[igt-dev] [PATCH i-g-t 1/2] meson: add an option to control Xe test builds

[Mauro Carvalho Chehab <mauro.chehab@linux.intel.com>]

From: Mauro Carvalho Chehab <mchehab@kernel.org>

The Xe driver is currently under heavy development and has not
merged upstream yet. While merging doesn't happen, the API may
still change, as upstream may request changes on it and/or
driver developers may need to tweak some API bits.

While this is happening, incompatible API changes may still
happen. As IGT is distributed on some distros, placing Xe
tests on binaries is not a good idea, as such tests may fail
when the final version gets released.

So, add a build option to allow disabling Xe driver builds.

Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
---
 docs/testplan/meson.build |  9 ++++++++-
 meson_options.txt         |  9 +++++++++
 tests/meson.build         | 23 ++++++++++++++---------
 3 files changed, 31 insertions(+), 10 deletions(-)

diff --git a/docs/testplan/meson.build b/docs/testplan/meson.build
index b65ee964ddd2..2014f91b5be1 100644
--- a/docs/testplan/meson.build
+++ b/docs/testplan/meson.build
@@ -23,11 +23,18 @@ else
 	doc_dependencies = []
 endif
 
+xe_test_dict = {
+		 'xe_tests': { 'input': xe_test_config, 'extra_args': check_testlist }
+	       }
+
 test_dict = {
-	      'xe_tests': { 'input': xe_test_config, 'extra_args': check_testlist },
 	      'kms_tests': { 'input': kms_test_config, 'extra_args': [] }
 	    }
 
+if build_xe
+	test_dict += xe_test_dict
+endif
+
 foreach testplan, fields: test_dict
 	rst = custom_target(testplan + '.rst',
 			    build_by_default : true,
diff --git a/meson_options.txt b/meson_options.txt
index 2cb44f20169b..7b5a818cb72f 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -37,6 +37,15 @@ option('tests',
        type : 'feature',
        description : 'Build tests')
 
+# Currently, Xe uAPI is not stable: it may still change while the driver is
+# not merged upstream.
+# So, add an option to enable it, as distros shall not be shipping
+# binaries with Xe tests on it, as they will most certainly fail once
+# drivers get upstreamed.
+option('xe_driver',
+       type : 'feature',
+       description : 'Build tests for Xe driver (experimental)')
+
 option('libdrm_drivers',
        type : 'array',
        value : ['auto'],
diff --git a/tests/meson.build b/tests/meson.build
index c15eb3a08cb2..ff7c37304b4d 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -317,15 +317,20 @@ foreach prog : i915_progs
 	test_list += prog
 endforeach
 
-foreach prog : xe_progs
-	test_executables += executable(prog,
-		   join_paths('xe', prog + '.c'),
-		   dependencies : test_deps,
-		   install_dir : libexecdir,
-		   install_rpath : libexecdir_rpathdir,
-		   install : true)
-	test_list += prog
-endforeach
+build_xe = not get_option('xe_driver').disabled()
+
+if build_xe
+	foreach prog : xe_progs
+		test_executables += executable(prog,
+			   join_paths('xe', prog + '.c'),
+			   dependencies : test_deps,
+			   install_dir : libexecdir,
+			   install_rpath : libexecdir_rpathdir,
+			   install : true)
+		test_list += prog
+	endforeach
+	build_info += 'Xe **experimental** tests enabled.'
+endif
 
 foreach prog : msm_progs
 	test_executables += executable(prog, join_paths('msm', prog + '.c'),
-- 
2.40.1