| Message ID | 20221123-rpi-kunit-tests-v2-10-efe5ed518b63@cerno.tech (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm: Introduce Kunit Tests to VC4 | expand |
On 11/28/22 11:53, Maxime Ripard wrote: > DRM-managed actions are supposed to be ran whenever the device is > released. Let's introduce a basic unit test to make sure it happens. > > Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> > Signed-off-by: Maxime Ripard <maxime@cerno.tech> Reviewed-by: Maíra Canal <mcanal@igalia.com> Best Regards, - Maíra Canal > --- > drivers/gpu/drm/tests/Makefile | 1 + > drivers/gpu/drm/tests/drm_managed_test.c | 71 ++++++++++++++++++++++++++++++++ > 2 files changed, 72 insertions(+) > > diff --git a/drivers/gpu/drm/tests/Makefile b/drivers/gpu/drm/tests/Makefile > index 94fe546d937d..486053052ba9 100644 > --- a/drivers/gpu/drm/tests/Makefile > +++ b/drivers/gpu/drm/tests/Makefile > @@ -10,6 +10,7 @@ obj-$(CONFIG_DRM_KUNIT_TEST) += \ > drm_format_test.o \ > drm_framebuffer_test.o \ > drm_kunit_helpers.o \ > + drm_managed_test.o \ > drm_mm_test.o \ > drm_modes_test.o \ > drm_plane_helper_test.o \ > diff --git a/drivers/gpu/drm/tests/drm_managed_test.c b/drivers/gpu/drm/tests/drm_managed_test.c > new file mode 100644 > index 000000000000..1652dca11d30 > --- /dev/null > +++ b/drivers/gpu/drm/tests/drm_managed_test.c > @@ -0,0 +1,71 @@ > +// SPDX-License-Identifier: GPL-2.0 > + > +#include <drm/drm_drv.h> > +#include <drm/drm_kunit_helpers.h> > +#include <drm/drm_managed.h> > + > +#include <kunit/resource.h> > + > +#include <linux/device.h> > + > +/* Ought to be enough for anybody */ > +#define TEST_TIMEOUT_MS 100 > + > +struct managed_test_priv { > + bool action_done; > + wait_queue_head_t action_wq; > +}; > + > +static void drm_action(struct drm_device *drm, void *ptr) > +{ > + struct managed_test_priv *priv = ptr; > + > + priv->action_done = true; > + wake_up_interruptible(&priv->action_wq); > +} > + > +static void drm_test_managed_run_action(struct kunit *test) > +{ > + struct managed_test_priv *priv; > + struct drm_device *drm; > + struct device *dev; > + int ret; > + > + priv = kunit_kzalloc(test, sizeof(*priv), GFP_KERNEL); > + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv); > + init_waitqueue_head(&priv->action_wq); > + > + dev = drm_kunit_helper_alloc_device(test); > + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); > + > + drm = __drm_kunit_helper_alloc_drm_device(test, dev, sizeof(*drm), 0, DRIVER_MODESET); > + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, drm); > + > + ret = drmm_add_action_or_reset(drm, drm_action, priv); > + KUNIT_EXPECT_EQ(test, ret, 0); > + > + ret = drm_dev_register(drm, 0); > + KUNIT_ASSERT_EQ(test, ret, 0); > + > + drm_dev_unregister(drm); > + drm_kunit_helper_free_device(test, dev); > + > + ret = wait_event_interruptible_timeout(priv->action_wq, priv->action_done, > + msecs_to_jiffies(TEST_TIMEOUT_MS)); > + KUNIT_EXPECT_GT(test, ret, 0); > +} > + > +static struct kunit_case drm_managed_tests[] = { > + KUNIT_CASE(drm_test_managed_run_action), > + {} > +}; > + > +static struct kunit_suite drm_managed_test_suite = { > + .name = "drm-test-managed", > + .test_cases = drm_managed_tests > +}; > + > +kunit_test_suite(drm_managed_test_suite); > + > +MODULE_AUTHOR("Maxime Ripard <maxime@cerno.tech>"); > +MODULE_LICENSE("GPL"); >
diff --git a/drivers/gpu/drm/tests/Makefile b/drivers/gpu/drm/tests/Makefile index 94fe546d937d..486053052ba9 100644 --- a/drivers/gpu/drm/tests/Makefile +++ b/drivers/gpu/drm/tests/Makefile @@ -10,6 +10,7 @@ obj-$(CONFIG_DRM_KUNIT_TEST) += \ drm_format_test.o \ drm_framebuffer_test.o \ drm_kunit_helpers.o \ + drm_managed_test.o \ drm_mm_test.o \ drm_modes_test.o \ drm_plane_helper_test.o \ diff --git a/drivers/gpu/drm/tests/drm_managed_test.c b/drivers/gpu/drm/tests/drm_managed_test.c new file mode 100644 index 000000000000..1652dca11d30 --- /dev/null +++ b/drivers/gpu/drm/tests/drm_managed_test.c @@ -0,0 +1,71 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include <drm/drm_drv.h> +#include <drm/drm_kunit_helpers.h> +#include <drm/drm_managed.h> + +#include <kunit/resource.h> + +#include <linux/device.h> + +/* Ought to be enough for anybody */ +#define TEST_TIMEOUT_MS 100 + +struct managed_test_priv { + bool action_done; + wait_queue_head_t action_wq; +}; + +static void drm_action(struct drm_device *drm, void *ptr) +{ + struct managed_test_priv *priv = ptr; + + priv->action_done = true; + wake_up_interruptible(&priv->action_wq); +} + +static void drm_test_managed_run_action(struct kunit *test) +{ + struct managed_test_priv *priv; + struct drm_device *drm; + struct device *dev; + int ret; + + priv = kunit_kzalloc(test, sizeof(*priv), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv); + init_waitqueue_head(&priv->action_wq); + + dev = drm_kunit_helper_alloc_device(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); + + drm = __drm_kunit_helper_alloc_drm_device(test, dev, sizeof(*drm), 0, DRIVER_MODESET); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, drm); + + ret = drmm_add_action_or_reset(drm, drm_action, priv); + KUNIT_EXPECT_EQ(test, ret, 0); + + ret = drm_dev_register(drm, 0); + KUNIT_ASSERT_EQ(test, ret, 0); + + drm_dev_unregister(drm); + drm_kunit_helper_free_device(test, dev); + + ret = wait_event_interruptible_timeout(priv->action_wq, priv->action_done, + msecs_to_jiffies(TEST_TIMEOUT_MS)); + KUNIT_EXPECT_GT(test, ret, 0); +} + +static struct kunit_case drm_managed_tests[] = { + KUNIT_CASE(drm_test_managed_run_action), + {} +}; + +static struct kunit_suite drm_managed_test_suite = { + .name = "drm-test-managed", + .test_cases = drm_managed_tests +}; + +kunit_test_suite(drm_managed_test_suite); + +MODULE_AUTHOR("Maxime Ripard <maxime@cerno.tech>"); +MODULE_LICENSE("GPL");