[PATCH 1/3] drm/xe/kunit: fix link failure with built-in xe

From: Arnd Bergmann <arnd@kernel.org>
To: "Lucas De Marchi" <lucas.demarchi@intel.com>,
	"Oded Gabbay" <ogabbay@kernel.org>,
	"Thomas Hellström" <thomas.hellstrom@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>,
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	Maxime Ripard <mripard@kernel.org>,
	Thomas Zimmermann <tzimmermann@suse.de>,
	David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>,
	Rodrigo Vivi <rodrigo.vivi@intel.com>,
	Matthew Brost <matthew.brost@intel.com>,
	Francois Dugast <francois.dugast@intel.com>,
	Jani Nikula <jani.nikula@intel.com>,
	Tejas Upadhyay <tejas.upadhyay@intel.com>,
	Matthew Auld <matthew.auld@intel.com>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Michal Wajdeczko <michal.wajdeczko@intel.com>,
	Matt Roper <matthew.d.roper@intel.com>,
	Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>,
	intel-xe@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH 1/3] drm/xe/kunit: fix link failure with built-in xe
Date: Sat, 24 Feb 2024 13:14:59 +0100	[thread overview]
Message-ID: <20240224121528.1972719-1-arnd@kernel.org> (raw)

From: Arnd Bergmann <arnd@arndb.de>

When the driver is built-in but the tests are in loadable modules,
the helpers don't actually get put into the driver:

ERROR: modpost: "xe_kunit_helper_alloc_xe_device" [drivers/gpu/drm/xe/tests/xe_test.ko] undefined!

Change the Makefile to ensure they are always part of the driver
even when the rest of the kunit tests are in loadable modules.

The tests/xe_kunit_helpers.c file depends on DRM_KUNIT_TEST_HELPERS,
so this has to always be selected by the main XE module now, rather
than the actual tests. In turn, the "depends on (m || (y && KUNIT=y))"
doesn't really do what it tried and can just be removed.

Fixes: 5095d13d758b ("drm/xe/kunit: Define helper functions to allocate fake xe device")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/gpu/drm/xe/Kconfig       | 3 ++-
 drivers/gpu/drm/xe/Kconfig.debug | 1 -
 drivers/gpu/drm/xe/Makefile      | 6 ++++--
 3 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/xe/Kconfig b/drivers/gpu/drm/xe/Kconfig
index 6d4428b19a4c..2948650680e1 100644
--- a/drivers/gpu/drm/xe/Kconfig
+++ b/drivers/gpu/drm/xe/Kconfig
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 config DRM_XE
 	tristate "Intel Xe Graphics"
-	depends on DRM && PCI && MMU && (m || (y && KUNIT=y))
+	depends on DRM && PCI && MMU
 	depends on ACPI_VIDEO || !ACPI
 	select INTERVAL_TREE
 	# we need shmfs for the swappable backing store, and in particular
@@ -11,6 +11,7 @@ config DRM_XE
 	select DRM_BUDDY
 	select DRM_EXEC
 	select DRM_KMS_HELPER
+	select DRM_KUNIT_TEST_HELPERS if DRM_XE_KUNIT_TEST != n
 	select DRM_PANEL
 	select DRM_SUBALLOC_HELPER
 	select DRM_DISPLAY_DP_HELPER
diff --git a/drivers/gpu/drm/xe/Kconfig.debug b/drivers/gpu/drm/xe/Kconfig.debug
index 549065f57a78..df02e5d17d26 100644
--- a/drivers/gpu/drm/xe/Kconfig.debug
+++ b/drivers/gpu/drm/xe/Kconfig.debug
@@ -76,7 +76,6 @@ config DRM_XE_KUNIT_TEST
 	depends on DRM_XE && KUNIT && DEBUG_FS
 	default KUNIT_ALL_TESTS
 	select DRM_EXPORT_FOR_TESTS if m
-	select DRM_KUNIT_TEST_HELPERS
 	help
 	  Choose this option to allow the driver to perform selftests under
 	  the kunit framework
diff --git a/drivers/gpu/drm/xe/Makefile b/drivers/gpu/drm/xe/Makefile
index 4c6ffe4b2172..b596e4482a9b 100644
--- a/drivers/gpu/drm/xe/Makefile
+++ b/drivers/gpu/drm/xe/Makefile
@@ -158,8 +158,10 @@ xe-$(CONFIG_PCI_IOV) += \
 	xe_lmtt_2l.o \
 	xe_lmtt_ml.o
 
-xe-$(CONFIG_DRM_XE_KUNIT_TEST) += \
-	tests/xe_kunit_helpers.o
+# include helpers for tests even when XE is built-in
+ifdef CONFIG_DRM_XE_KUNIT_TEST
+xe-y += tests/xe_kunit_helpers.o
+endif
 
 # i915 Display compat #defines and #includes
 subdir-ccflags-$(CONFIG_DRM_XE_DISPLAY) += \
-- 
2.39.2

