From: "Maíra Canal" <mcanal@igalia.com>
To: Maxime Ripard <maxime@cerno.tech>,
Daniel Vetter <daniel@ffwll.ch>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <mripard@kernel.org>,
David Airlie <airlied@gmail.com>,
Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Gow <davidgow@google.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Dave Stevenson <dave.stevenson@raspberrypi.com>,
Javier Martinez Canillas <javierm@redhat.com>,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
linaro-mm-sig@lists.linaro.org,
Brendan Higgins <brendan.higgins@linux.dev>,
linux-kselftest@vger.kernel.org, kunit-dev@googlegroups.com,
linux-media@vger.kernel.org
Subject: Re: [PATCH v2 07/17] drm/tests: helpers: Make sure the device is bound
Date: Mon, 28 Nov 2022 17:09:06 -0300 [thread overview]
Message-ID: <dffe5d84-4acf-ccb5-dacc-98f691c30352@igalia.com> (raw)
In-Reply-To: <20221123-rpi-kunit-tests-v2-7-efe5ed518b63@cerno.tech>
On 11/28/22 11:53, Maxime Ripard wrote:
> The device managed resources are freed when the device is detached, so
> it has to be bound in the first place.
>
> Let's create a fake driver that we will bind to our fake device to
> benefit from the device managed cleanups in our tests.
>
> Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Best Regards,
- Maíra Canal
> ---
> drivers/gpu/drm/tests/drm_kunit_helpers.c | 26 +++++++++++++++++++++++++-
> 1 file changed, 25 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/tests/drm_kunit_helpers.c b/drivers/gpu/drm/tests/drm_kunit_helpers.c
> index 15678ab823b0..5d3e29353d1a 100644
> --- a/drivers/gpu/drm/tests/drm_kunit_helpers.c
> +++ b/drivers/gpu/drm/tests/drm_kunit_helpers.c
> @@ -18,12 +18,32 @@ struct kunit_dev {
> static const struct drm_mode_config_funcs drm_mode_config_funcs = {
> };
>
> +static int fake_probe(struct platform_device *pdev)
> +{
> + return 0;
> +}
> +
> +static int fake_remove(struct platform_device *pdev)
> +{
> + return 0;
> +}
> +
> +static struct platform_driver fake_platform_driver = {
> + .probe = fake_probe,
> + .remove = fake_remove,
> + .driver = {
> + .name = KUNIT_DEVICE_NAME,
> + },
> +};
> +
> /**
> * drm_kunit_helper_alloc_device - Allocate a mock device for a KUnit test
> * @test: The test context object
> *
> * This allocates a fake struct &device to create a mock for a Kunit
> - * test.
> + * test. The device will also be bound to a fake driver. It will thus be
> + * able to leverage the usual infrastructure and most notably the
> + * device-managed resources just like a "real" device.
> *
> * Callers need to make sure drm_kunit_helper_free_device() on the
> * device when done.
> @@ -36,6 +56,9 @@ struct device *drm_kunit_helper_alloc_device(struct kunit *test)
> struct platform_device *pdev;
> int ret;
>
> + ret = platform_driver_register(&fake_platform_driver);
> + KUNIT_ASSERT_EQ(test, ret, 0);
> +
> pdev = platform_device_alloc(KUNIT_DEVICE_NAME, PLATFORM_DEVID_NONE);
> KUNIT_ASSERT_NOT_ERR_OR_NULL(test, pdev);
>
> @@ -58,6 +81,7 @@ void drm_kunit_helper_free_device(struct kunit *test, struct device *dev)
> struct platform_device *pdev = to_platform_device(dev);
>
> platform_device_unregister(pdev);
> + platform_driver_unregister(&fake_platform_driver);
> }
> EXPORT_SYMBOL(drm_kunit_helper_free_device);
>
>
next prev parent reply other threads:[~2022-11-28 20:09 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20221123-rpi-kunit-tests-v2-0-efe5ed518b63@cerno.tech>
[not found] ` <20221123-rpi-kunit-tests-v2-2-efe5ed518b63@cerno.tech>
2022-11-28 19:30 ` [PATCH v2 02/17] drm/tests: helpers: Document drm_kunit_device_init() Maíra Canal
[not found] ` <20221123-rpi-kunit-tests-v2-4-efe5ed518b63@cerno.tech>
2022-11-28 19:37 ` [PATCH v2 04/17] drm/tests: helpers: Remove the name parameter Maíra Canal
[not found] ` <20221123-rpi-kunit-tests-v2-5-efe5ed518b63@cerno.tech>
2022-11-28 19:48 ` [PATCH v2 05/17] drm/tests: helpers: Create the device in another function Maíra Canal
[not found] ` <20221123-rpi-kunit-tests-v2-6-efe5ed518b63@cerno.tech>
2022-11-28 20:01 ` [PATCH v2 06/17] drm/tests: helpers: Switch to a platform_device Maíra Canal
[not found] ` <20221123-rpi-kunit-tests-v2-7-efe5ed518b63@cerno.tech>
2022-11-28 20:09 ` Maíra Canal [this message]
[not found] ` <20221123-rpi-kunit-tests-v2-10-efe5ed518b63@cerno.tech>
2022-11-28 20:14 ` [PATCH v2 10/17] drm/tests: Add a test for DRM managed actions Maíra Canal
[not found] ` <20221123-rpi-kunit-tests-v2-11-efe5ed518b63@cerno.tech>
2022-11-28 20:16 ` [PATCH v2 11/17] drm/vc4: Move HVS state to main header Maíra Canal
[not found] ` <20221123-rpi-kunit-tests-v2-12-efe5ed518b63@cerno.tech>
2022-11-28 20:23 ` [PATCH v2 12/17] drm/vc4: crtc: Introduce a lower-level crtc init helper Maíra Canal
[not found] ` <20221123-rpi-kunit-tests-v2-13-efe5ed518b63@cerno.tech>
2022-11-28 20:26 ` [PATCH v2 13/17] drm/vc4: crtc: Make encoder lookup helper public Maíra Canal
[not found] ` <20221123-rpi-kunit-tests-v2-15-efe5ed518b63@cerno.tech>
2022-11-28 20:35 ` [PATCH v2 15/17] drm/vc4: tests: Introduce a mocking infrastructure Maíra Canal
2022-11-30 9:59 ` Javier Martinez Canillas
2022-12-01 13:03 ` Maxime Ripard
[not found] ` <20221123-rpi-kunit-tests-v2-3-efe5ed518b63@cerno.tech>
2022-11-28 20:36 ` [PATCH v2 03/17] drm/tests: helpers: Rename the device init helper Maíra Canal
2022-11-28 20:48 ` [PATCH v2 00/17] drm: Introduce Kunit Tests to VC4 Maíra Canal
[not found] ` <20221123-rpi-kunit-tests-v2-1-efe5ed518b63@cerno.tech>
2022-11-30 8:00 ` [PATCH v2 01/17] drm/tests: helpers: Move the helper header to include/drm Javier Martinez Canillas
2022-12-01 10:27 ` Maxime Ripard
2022-12-01 10:38 ` Javier Martinez Canillas
[not found] ` <20221123-rpi-kunit-tests-v2-8-efe5ed518b63@cerno.tech>
2022-11-30 9:13 ` [PATCH v2 08/17] drm/tests: helpers: Allow for a custom device struct to be allocated Javier Martinez Canillas
[not found] ` <20221123-rpi-kunit-tests-v2-9-efe5ed518b63@cerno.tech>
2022-11-30 9:27 ` [PATCH v2 09/17] drm/tests: helpers: Allow to pass a custom drm_driver Javier Martinez Canillas
[not found] ` <20221123-rpi-kunit-tests-v2-16-efe5ed518b63@cerno.tech>
2022-11-30 10:09 ` [PATCH v2 16/17] drm/vc4: tests: Fail the current test if we access a register Javier Martinez Canillas
[not found] ` <20221123-rpi-kunit-tests-v2-17-efe5ed518b63@cerno.tech>
2022-11-30 10:15 ` [PATCH v2 17/17] drm/vc4: tests: Add unit test suite for the PV muxing Javier Martinez Canillas
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