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drm/tests: Add test for drm_framebuffer_lookup()

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Add two KUnit test cases for the drm_framebuffer_lookup function, one
for the base case, that tests if the lookup finds the correct framebuffer
object and another that tests the lookup for an inexistent framebuffer.

Signed-off-by: Carlos Eduardo Gallo Filho <gcarlos@disroot.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240911001559.28284-8-gcarlos@disroot.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
This commit is contained in:
Carlos Eduardo Gallo Filho 2024-09-10 21:15:32 -03:00 committed by Maxime Ripard
parent 1bb74f6cc3
commit 3b3732b0d3
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1 changed files with 41 additions and 0 deletions
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41
drivers/gpu/drm/tests/drm_framebuffer_test.c
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@ -529,10 +529,51 @@ static void drm_test_framebuffer_cleanup(struct kunit *test)
KUNIT_ASSERT_EQ(test, dev->mode_config.num_fb, 0);
}
/*
* Initialize a framebuffer, lookup its id and test if the returned reference
* matches.
*/
static void drm_test_framebuffer_lookup(struct kunit *test)
{
struct drm_framebuffer_test_priv *priv = test->priv;
struct drm_device *dev = &priv->dev;
struct drm_format_info format = { };
struct drm_framebuffer expected_fb = { .dev = dev, .format = &format };
struct drm_framebuffer *returned_fb;
uint32_t id = 0;
int ret;
ret = drm_framebuffer_init(dev, &expected_fb, NULL);
KUNIT_ASSERT_EQ(test, ret, 0);
id = expected_fb.base.id;
/* Looking for expected_fb */
returned_fb = drm_framebuffer_lookup(dev, NULL, id);
KUNIT_EXPECT_PTR_EQ(test, returned_fb, &expected_fb);
drm_framebuffer_put(returned_fb);
drm_framebuffer_cleanup(&expected_fb);
}
/* Try to lookup an id that is not linked to a framebuffer */
static void drm_test_framebuffer_lookup_inexistent(struct kunit *test)
{
struct drm_framebuffer_test_priv *priv = test->priv;
struct drm_device *dev = &priv->dev;
struct drm_framebuffer *fb;
uint32_t id = 0;
/* Looking for an inexistent framebuffer */
fb = drm_framebuffer_lookup(dev, NULL, id);
KUNIT_EXPECT_NULL(test, fb);
}
static struct kunit_case drm_framebuffer_tests[] = {
KUNIT_CASE_PARAM(drm_test_framebuffer_check_src_coords, check_src_coords_gen_params),
KUNIT_CASE(drm_test_framebuffer_cleanup),
KUNIT_CASE_PARAM(drm_test_framebuffer_create, drm_framebuffer_create_gen_params),
KUNIT_CASE(drm_test_framebuffer_lookup),
KUNIT_CASE(drm_test_framebuffer_lookup_inexistent),
KUNIT_CASE(drm_test_framebuffer_modifiers_not_supported),
{ }
};