From patchwork Tue Jan 14 18:16:57 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cristian Ciocaltea X-Patchwork-Id: 13939321 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 C591DC02183 for ; Tue, 14 Jan 2025 18:17:16 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2C34F10E471; Tue, 14 Jan 2025 18:17:16 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=collabora.com header.i=@collabora.com header.b="O2g0FZip"; dkim-atps=neutral Received: from bali.collaboradmins.com (bali.collaboradmins.com [148.251.105.195]) by gabe.freedesktop.org (Postfix) with ESMTPS id 60E3D10E46A for ; Tue, 14 Jan 2025 18:17:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1736878634; bh=+l9zb4hoh+tVTykJo0VS3bVUA00OYLvGyHXEer002NU=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=O2g0FZipMJOuIqTyfJJo6gqDd2CgJf2YuaoVK5OC/qN0PGfnxYMlxArDg36xNOLv6 k1qCt091ArKVef/vbRj+aAnHPqS3gLXO+AxGakBzODM78AdXJK1eRLv+8Ybt7ayZdY D/jx/n+VM3fVO0xm0UXxIjgOcfYdaL+raQXgoGc6SXIc419XEThxEGA48LyRVJHvzd OgcZzlYPtIN7J/cUxQpcI/ViL73WhhpWXHi74JgahvOuqH/4Qf8SimXX0z+29JFn34 sFkJLSNQ4GpzqvnurMOcDQmArJo6BHH1qoOUXvDEepwemwNViUx8yfY2xRCGMc7jGI Gltb0DL8jlxuw== Received: from localhost (unknown [82.76.59.196]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (prime256v1) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: cristicc) by bali.collaboradmins.com (Postfix) with ESMTPSA id DD5F417E0E64; Tue, 14 Jan 2025 19:17:13 +0100 (CET) From: Cristian Ciocaltea Date: Tue, 14 Jan 2025 20:16:57 +0200 Subject: [PATCH v3 2/2] drm/tests: hdmi: Add connector's CRTC deactivation test MIME-Version: 1.0 Message-Id: <20250114-hdmi-conn-null-mode-v3-2-16bca91e11b0@collabora.com> References: <20250114-hdmi-conn-null-mode-v3-0-16bca91e11b0@collabora.com> In-Reply-To: <20250114-hdmi-conn-null-mode-v3-0-16bca91e11b0@collabora.com> To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Dave Stevenson , Dmitry Baryshkov Cc: kernel@collabora.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org X-Mailer: b4 0.14.2 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" Following up a fixed bug in drm_atomic_helper_connector_hdmi_check(), discovered while unloading a DRM module, add a test to make sure the helper will not exhibit any abnormal behaviour for use cases that involve shutting down the connector's CRTC. Signed-off-by: Cristian Ciocaltea --- drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c | 76 ++++++++++++++++++++++ 1 file changed, 76 insertions(+) diff --git a/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c b/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c index c3b693bb966f1f8b04066d19f520bfa4bf11c23d..e6e79da200c4e81699c6e159a1bb2725004baf96 100644 --- a/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c +++ b/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c @@ -1568,6 +1568,81 @@ static void drm_test_check_output_bpc_format_display_8bpc_only(struct kunit *tes KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); } +/* + * Test that if we deactivate connector's CRTC, we trigger a mode change + * on that CRTC, along with setting {connectors|active}_changed. + */ +static void drm_test_check_crtc_deactivate_mode_changed(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx *ctx; + struct drm_connector_state *old_conn_state; + struct drm_connector_state *new_conn_state; + struct drm_crtc_state *old_crtc_state; + struct drm_crtc_state *new_crtc_state; + struct drm_atomic_state *state; + struct drm_display_mode *preferred; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + KUNIT_ASSERT_TRUE(test, conn->display_info.is_hdmi); + + ctx = drm_kunit_helper_acquire_ctx_alloc(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); + + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + + drm = &priv->drm; + crtc = priv->crtc; + ret = light_up_connector(test, drm, crtc, conn, preferred, ctx); + KUNIT_ASSERT_EQ(test, ret, 0); + + state = drm_kunit_helper_atomic_state_alloc(test, drm, ctx); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); + + new_conn_state = drm_atomic_get_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, new_conn_state); + + old_conn_state = drm_atomic_get_old_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, old_conn_state); + + new_crtc_state = drm_atomic_get_crtc_state(state, crtc); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, new_crtc_state); + + old_crtc_state = drm_atomic_get_old_crtc_state(state, crtc); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, old_crtc_state); + + ret = drm_atomic_set_mode_for_crtc(new_crtc_state, NULL); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_ASSERT_NE(test, old_crtc_state->enable, new_crtc_state->enable); + + new_crtc_state->active = false; + KUNIT_ASSERT_NE(test, old_crtc_state->active, new_crtc_state->active); + + ret = drm_atomic_set_crtc_for_connector(new_conn_state, NULL); + KUNIT_ASSERT_EQ(test, ret, 0); + + KUNIT_ASSERT_PTR_NE(test, old_conn_state->crtc, new_conn_state->crtc); + + ret = drm_atomic_check_only(state); + KUNIT_ASSERT_EQ(test, ret, 0); + + new_crtc_state = drm_atomic_get_new_crtc_state(state, crtc); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, new_crtc_state); + KUNIT_EXPECT_TRUE(test, new_crtc_state->mode_changed); + KUNIT_EXPECT_TRUE(test, new_crtc_state->connectors_changed); + KUNIT_EXPECT_TRUE(test, new_crtc_state->active_changed); +} + static struct kunit_case drm_atomic_helper_connector_hdmi_check_tests[] = { KUNIT_CASE(drm_test_check_broadcast_rgb_auto_cea_mode), KUNIT_CASE(drm_test_check_broadcast_rgb_auto_cea_mode_vic_1), @@ -1596,6 +1671,7 @@ static struct kunit_case drm_atomic_helper_connector_hdmi_check_tests[] = { KUNIT_CASE(drm_test_check_tmds_char_rate_rgb_8bpc), KUNIT_CASE(drm_test_check_tmds_char_rate_rgb_10bpc), KUNIT_CASE(drm_test_check_tmds_char_rate_rgb_12bpc), + KUNIT_CASE(drm_test_check_crtc_deactivate_mode_changed), /* * TODO: We should have tests to check that a change in the * format triggers a CRTC mode change just like we do for the