From patchwork Tue Feb 25 16:43:54 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13990287 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0EACBC021B2 for ; Tue, 25 Feb 2025 16:44:29 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 57D0110E77D; Tue, 25 Feb 2025 16:44:28 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="tPgHSTZ1"; dkim-atps=neutral Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by gabe.freedesktop.org (Postfix) with ESMTPS id 29C7D10E751 for ; Tue, 25 Feb 2025 16:44:23 +0000 (UTC) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id B2D77612B7; Tue, 25 Feb 2025 16:44:15 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 79C8DC4CEE8; Tue, 25 Feb 2025 16:44:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1740501861; bh=YFMDXBuU+KtKk4l46IJbNkqHIHU2gK0Gq6lgEuBglcs=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=tPgHSTZ1vHzcHcIzf/cdZe9tzxwqIRZniQTvJ/IGE2ZwdHrkF/bmUlBPBw8ds4psv RH4DwHBkgVrEltHlwjCTYWnFO/f/4hgHK6ueyTvACEsLMIHEn25It6znCatQ+nTTDT 7BDzqf2uwVWwn1YUF6+xkztt0N/tJCP120usYmUDUVS9EWuPXH3eMLNsuOsDMkerIT tXiYVdg5YtlvZHU0RDfWJjhz/NZc0TVPOuevupDz8NSg4kVFoKgJPesdila0e1EcPl xBQTRFt6Xp9SkgFXXGc0wWVqWqHdUpZWfpNSxq/m9je53SOT+rlZ5B1hARU/Kua0NR M7S/AGHXdt9gA== From: Maxime Ripard Date: Tue, 25 Feb 2025 17:43:54 +0100 Subject: [PATCH v4 06/15] drm/tests: Create tests for drm_atomic MIME-Version: 1.0 Message-Id: <20250225-bridge-connector-v4-6-7ecb07b09cad@kernel.org> References: <20250225-bridge-connector-v4-0-7ecb07b09cad@kernel.org> In-Reply-To: <20250225-bridge-connector-v4-0-7ecb07b09cad@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Simona Vetter , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Douglas Anderson Cc: Herve Codina , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Maxime Ripard X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=5572; i=mripard@kernel.org; h=from:subject:message-id; bh=YFMDXBuU+KtKk4l46IJbNkqHIHU2gK0Gq6lgEuBglcs=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDOl7P/sYpZz/r+cTbRXJoXmxuae98aGPk0pkQG6uZpekk LWf7faOqSwMwpwMsmKKLE9kwk4vb19c5WC/8gfMHFYmkCEMXJwCMBHLTsb6HFdl/YAPO1P2BNmW fe/XLzHis+RR23b6VnyxnOjKaa4/N/2elJ8T0FM/ecfSdw0bDyozNnwSZPi70KOKSf3XRR22sqy Dv6uD/67Vty9v0387qWb2ineGM/jel6rv23lkubuE3u+f+wE= X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" We don't have a set of kunit tests for the functions under drm_atomic.h. Let's use the introduction of drm_atomic_get_connector_for_encoder() to create some tests for it and thus create that set. Signed-off-by: Maxime Ripard Reviewed-by: Dmitry Baryshkov --- drivers/gpu/drm/tests/Makefile | 1 + drivers/gpu/drm/tests/drm_atomic_test.c | 153 ++++++++++++++++++++++++++++++++ 2 files changed, 154 insertions(+) diff --git a/drivers/gpu/drm/tests/Makefile b/drivers/gpu/drm/tests/Makefile index 6691c577d2d4581a4185bac2ce89a6b14b339b35..3afd6587df0831a0d10e91ff0a584af6ba1813e4 100644 --- a/drivers/gpu/drm/tests/Makefile +++ b/drivers/gpu/drm/tests/Makefile @@ -2,10 +2,11 @@ obj-$(CONFIG_DRM_KUNIT_TEST_HELPERS) += \ drm_kunit_helpers.o obj-$(CONFIG_DRM_KUNIT_TEST) += \ + drm_atomic_test.o \ drm_atomic_state_test.o \ drm_bridge_test.o \ drm_buddy_test.o \ drm_cmdline_parser_test.o \ drm_connector_test.o \ diff --git a/drivers/gpu/drm/tests/drm_atomic_test.c b/drivers/gpu/drm/tests/drm_atomic_test.c new file mode 100644 index 0000000000000000000000000000000000000000..ea91bec6569e688ad33149d8ee6ecc3562b61254 --- /dev/null +++ b/drivers/gpu/drm/tests/drm_atomic_test.c @@ -0,0 +1,153 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Kunit test for drm_atomic functions + */ +#include +#include +#include +#include +#include +#include + +#include + +struct drm_atomic_test_priv { + struct drm_device drm; + struct drm_plane *plane; + struct drm_crtc *crtc; + struct drm_encoder encoder; + struct drm_connector connector; +}; + +static const struct drm_connector_helper_funcs drm_atomic_init_connector_helper_funcs = { +}; + +static const struct drm_connector_funcs drm_atomic_init_connector_funcs = { + .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, + .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, + .reset = drm_atomic_helper_connector_reset, +}; + +static struct drm_atomic_test_priv *create_device(struct kunit *test) +{ + struct drm_atomic_test_priv *priv; + struct drm_connector *connector; + struct drm_encoder *enc; + struct drm_device *drm; + struct drm_plane *plane; + struct drm_crtc *crtc; + struct device *dev; + int ret; + + dev = drm_kunit_helper_alloc_device(test); + if (IS_ERR(dev)) + return ERR_CAST(dev); + + priv = drm_kunit_helper_alloc_drm_device(test, dev, + struct drm_atomic_test_priv, drm, + DRIVER_MODESET | DRIVER_ATOMIC); + if (IS_ERR(priv)) + return ERR_CAST(priv); + + drm = &priv->drm; + plane = drm_kunit_helper_create_primary_plane(test, drm, + NULL, + NULL, + NULL, 0, + NULL); + if (IS_ERR(plane)) + return ERR_CAST(plane); + priv->plane = plane; + + crtc = drm_kunit_helper_create_crtc(test, drm, + plane, NULL, + NULL, + NULL); + if (IS_ERR(crtc)) + return ERR_CAST(crtc); + priv->crtc = crtc; + + enc = &priv->encoder; + ret = drmm_encoder_init(drm, enc, NULL, DRM_MODE_ENCODER_TMDS, NULL); + if (ret) + return ERR_PTR(ret); + + enc->possible_crtcs = drm_crtc_mask(crtc); + + connector = &priv->connector; + ret = drmm_connector_init(drm, connector, + &drm_atomic_init_connector_funcs, + DRM_MODE_CONNECTOR_VIRTUAL, + NULL); + if (ret) + return ERR_PTR(ret); + + drm_connector_helper_add(connector, &drm_atomic_init_connector_helper_funcs); + + drm_connector_attach_encoder(connector, enc); + + drm_mode_config_reset(drm); + + return priv; +} + +static void drm_test_drm_atomic_get_connector_for_encoder(struct kunit *test) +{ + struct drm_modeset_acquire_ctx ctx; + struct drm_atomic_test_priv *priv; + struct drm_display_mode *mode; + struct drm_connector *curr_connector; + int ret; + + priv = create_device(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv); + + mode = drm_kunit_display_mode_from_cea_vic(test, &priv->drm, 16); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, mode); + + drm_modeset_acquire_init(&ctx, 0); + +retry_enable: + ret = drm_kunit_helper_enable_crtc_connector(test, &priv->drm, + priv->crtc, &priv->connector, + mode, &ctx); + if (ret == -EDEADLK) { + drm_modeset_backoff(&ctx); + goto retry_enable; + } + KUNIT_ASSERT_EQ(test, ret, 0); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); + + drm_modeset_acquire_init(&ctx, 0); + +retry_conn: + curr_connector = drm_atomic_get_connector_for_encoder(&priv->encoder, + &ctx); + if (PTR_ERR(curr_connector) == -EDEADLK) { + drm_modeset_backoff(&ctx); + goto retry_conn; + } + KUNIT_EXPECT_PTR_EQ(test, curr_connector, &priv->connector); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +static struct kunit_case drm_atomic_get_connector_for_encoder_tests[] = { + KUNIT_CASE(drm_test_drm_atomic_get_connector_for_encoder), + { } +}; + + +static struct kunit_suite drm_atomic_get_connector_for_encoder_test_suite = { + .name = "drm_test_atomic_get_connector_for_encoder", + .test_cases = drm_atomic_get_connector_for_encoder_tests, +}; + +kunit_test_suite(drm_atomic_get_connector_for_encoder_test_suite); + +MODULE_AUTHOR("Maxime Ripard "); +MODULE_DESCRIPTION("Kunit test for drm_atomic functions"); +MODULE_LICENSE("GPL");