From patchwork Tue May 7 13:17:19 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13657022 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 2D58BC25B75 for ; Tue, 7 May 2024 13:18:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References:Message-Id :MIME-Version:Subject:Date:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=r6Q4FKYu2Wz8Z8j3BZX8N6jZaFFumSayNF83WkOXezs=; b=WthSJKkBYmCnNq w3K7KcequuPlD5zpguS6M29g6Ny/79WOAhomQ8tMRfogiJjub9iA/M5pZW5cUcCgt0ZjQbH9+9iUy Si1tr/t4Q4qMaQkEv3bFk4fOacZILubaRexOB8QI6OQGIULQIORRGRd7Uh/Ge58sVouDe6M1sQNt0 G6mRakIR6WHzzkHsY5FejPgT552AnqqUSH+IGLeDipYxLxsvWvHULjtGX4A0w3lcYpvjicOAdfcPx 6qjnfMIdF0SrTi6SDGDTZNP9oLY5/1stWznS8EC5x4JcS8mKzWBzsdE5utC13RSkprlcn1n3IStV+ eaoQRNl1q5SML5ulmErQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1s4Khb-0000000B9BD-2bFN; Tue, 07 May 2024 13:17:51 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1s4KhX-0000000B985-11tn; Tue, 07 May 2024 13:17:48 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id BA96E61762; Tue, 7 May 2024 13:17:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 12554C3277B; Tue, 7 May 2024 13:17:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1715087866; bh=mip2dTposQAfd+SqycxyXVPYbKW0NKtrqBLWMYUsIvY=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=GwpB/j3d8qfggNEKOk73Hekz9qAC3d8KPzZGbBQEVyNliJ3ytbjBs71TVn9NU2hUi duQUpW5PWYwJ1ceN5dHVSlzSppmYBULGjza1qKx260OotSzfPw1ubhG26bAqPngQzx eMcKD2CS3kZ6Djl0koCrN3DHXSfKy7Mi52JPKfx1bcTwiO1qJBmJ2BCCDrMWInGz9U msFnT0U/pRmnu4aVuLOGYXpqQnsjARLPhpPgJNLz1aZcQIm2pVCTulB6oz8hbEzqUR mwHITgYwXVjd72+EiIWh7k8msWzbezguOpYrLWmRMbp4YjeO8qrWQ3EGQlVHaVNPIb T80XVi5f3wW1g== From: Maxime Ripard Date: Tue, 07 May 2024 15:17:19 +0200 Subject: [PATCH v13 01/28] drm/connector: Introduce an HDMI connector initialization function MIME-Version: 1.0 Message-Id: <20240507-kms-hdmi-connector-state-v13-1-8fafc5efe8be@kernel.org> References: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> In-Reply-To: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Andy Yan Cc: Hans Verkuil , Sebastian Wick , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, Maxime Ripard , Dave Stevenson , Sui Jingfeng X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=3844; i=mripard@kernel.org; h=from:subject:message-id; bh=mip2dTposQAfd+SqycxyXVPYbKW0NKtrqBLWMYUsIvY=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDGlWms/ryr9clpZ6e2LxlbeLF7ipPtly++9NgalbHvYlh y36Il5f0DGVhUGYk0FWTJHliUzY6eXti6sc7Ff+gJnDygQyhIGLUwAmcnULY72b3vkLJ3iy17Tb 9jrcO3pwd3qJ/95r1UYOFja7ApZMkGoWTV5ktFe0LojjR/qkvSdlrjM2zCusbel+frg9ndklgnd uONsiY+PvNz55rz/MxHBgs+jt31c8vtYEmW5puhn/ZoNh1ZXDAA== X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240507_061747_473799_8ABC5B9E X-CRM114-Status: GOOD ( 15.78 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org A lot of the various HDMI drivers duplicate some logic that depends on the HDMI spec itself and not really a particular hardware implementation. Output BPC or format selection, infoframe generation are good examples of such areas. This creates a lot of boilerplate, with a lot of variations, which makes it hard for userspace to rely on, and makes it difficult to get it right for drivers. In the next patches, we'll add a lot of infrastructure around the drm_connector and drm_connector_state structures, which will allow to abstract away the duplicated logic. This infrastructure comes with a few requirements though, and thus we need a new initialization function. Hopefully, this will make drivers simpler to handle, and their behaviour more consistent. Reviewed-by: Dave Stevenson Reviewed-by: Sui Jingfeng Signed-off-by: Maxime Ripard --- drivers/gpu/drm/drm_connector.c | 39 +++++++++++++++++++++++++++++++++++++++ include/drm/drm_connector.h | 5 +++++ 2 files changed, 44 insertions(+) diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index b0516505f7ae..d9961cce8245 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -450,10 +450,49 @@ int drmm_connector_init(struct drm_device *dev, return 0; } EXPORT_SYMBOL(drmm_connector_init); +/** + * drmm_connector_hdmi_init - Init a preallocated HDMI connector + * @dev: DRM device + * @connector: A pointer to the HDMI connector to init + * @funcs: callbacks for this connector + * @connector_type: user visible type of the connector + * @ddc: optional pointer to the associated ddc adapter + * + * Initialises a preallocated HDMI connector. Connectors can be + * subclassed as part of driver connector objects. + * + * Cleanup is automatically handled with a call to + * drm_connector_cleanup() in a DRM-managed action. + * + * The connector structure should be allocated with drmm_kzalloc(). + * + * Returns: + * Zero on success, error code on failure. + */ +int drmm_connector_hdmi_init(struct drm_device *dev, + struct drm_connector *connector, + const struct drm_connector_funcs *funcs, + int connector_type, + struct i2c_adapter *ddc) +{ + int ret; + + if (!(connector_type == DRM_MODE_CONNECTOR_HDMIA || + connector_type == DRM_MODE_CONNECTOR_HDMIB)) + return -EINVAL; + + ret = drmm_connector_init(dev, connector, funcs, connector_type, ddc); + if (ret) + return ret; + + return 0; +} +EXPORT_SYMBOL(drmm_connector_hdmi_init); + /** * drm_connector_attach_edid_property - attach edid property. * @connector: the connector * * Some connector types like DRM_MODE_CONNECTOR_VIRTUAL do not get a diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index fe88d7fc6b8f..4491c4c2fb6e 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -1902,10 +1902,15 @@ int drm_connector_init_with_ddc(struct drm_device *dev, int drmm_connector_init(struct drm_device *dev, struct drm_connector *connector, const struct drm_connector_funcs *funcs, int connector_type, struct i2c_adapter *ddc); +int drmm_connector_hdmi_init(struct drm_device *dev, + struct drm_connector *connector, + const struct drm_connector_funcs *funcs, + int connector_type, + struct i2c_adapter *ddc); void drm_connector_attach_edid_property(struct drm_connector *connector); int drm_connector_register(struct drm_connector *connector); void drm_connector_unregister(struct drm_connector *connector); int drm_connector_attach_encoder(struct drm_connector *connector, struct drm_encoder *encoder); From patchwork Tue May 7 13:17:20 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13657024 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 BF31DC25B75 for ; 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Tue, 07 May 2024 13:17:58 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1s4Kha-0000000B99R-0668; Tue, 07 May 2024 13:17:51 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 6E3EE61770; Tue, 7 May 2024 13:17:49 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E4000C4DDE3; Tue, 7 May 2024 13:17:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1715087869; bh=RHQ+M/X8yAIVLRtJQPx77FibueWozKcb1Cr3A01lM9s=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=QlLWv+GEXCa2lAO38Dh4VCIk8N6Lhjgr7s2/NI8bJSb2fTV5mmgHYtRElTKoVBWmE H99okaTVcPHHsetwnCECjzJn3a2sFIJp6sLQLGmVSZEwELU86DXK+IHgjabljKOOHR PhTgsIyiajV1LknZZZ/Jc8OoyPAS92wx5Wqe3+j/S7rfMNsuIk2yJ/Mw8KcDqTyfoY gyDM0u5nb4s0yH/tMEg/s6DyUrOXzZ3tcOgnWyYlkvX2rLU5PDcSUvhLLFLnyTzsqa XgCcWpAW5WHUP/NACWO2YDBwb+znGRuMVMDU7e6k8ZuVzODU6OE4tUoZ4HhU/u2kpe +kmH9T1g9k5mQ== From: Maxime Ripard Date: Tue, 07 May 2024 15:17:20 +0200 Subject: [PATCH v13 02/28] drm/mode_object: Export drm_mode_obj_find_prop_id for tests MIME-Version: 1.0 Message-Id: <20240507-kms-hdmi-connector-state-v13-2-8fafc5efe8be@kernel.org> References: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> In-Reply-To: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Andy Yan Cc: Hans Verkuil , Sebastian Wick , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, Maxime Ripard X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; 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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org We'll need to use drm_mode_obj_find_prop_id() for kunit tests to make sure a given property has been properly created. Let's export it for tests only. Signed-off-by: Maxime Ripard --- drivers/gpu/drm/drm_mode_object.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/drm_mode_object.c b/drivers/gpu/drm/drm_mode_object.c index 0e8355063eee..df4cc0e8e263 100644 --- a/drivers/gpu/drm/drm_mode_object.c +++ b/drivers/gpu/drm/drm_mode_object.c @@ -476,10 +476,11 @@ struct drm_property *drm_mode_obj_find_prop_id(struct drm_mode_object *obj, if (obj->properties->properties[i]->base.id == prop_id) return obj->properties->properties[i]; return NULL; } +EXPORT_SYMBOL_FOR_TESTS_ONLY(drm_mode_obj_find_prop_id); static int set_property_legacy(struct drm_mode_object *obj, struct drm_property *prop, uint64_t prop_value) { From patchwork Tue May 7 13:17:21 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13657025 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 8F6C9C10F1A for ; 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Tue, 07 May 2024 13:18:02 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1s4Khd-0000000B9CI-06OY; Tue, 07 May 2024 13:17:55 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 586FF61768; Tue, 7 May 2024 13:17:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CA772C4DDE0; Tue, 7 May 2024 13:17:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1715087872; bh=kpugqRRTtI2zqYUkrRQOUtStRse4zcye8LofRM1/4QM=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=ZE4WXMdImKJGnK/i0VosUpvwHfw44ldd7Ml7S0Xp24JFoqB7vODRbUwVLV7ajRQEM U2Bq7t+/GNUaMxbtcszu0jOxdf1Jwsh2UYNlqCx7UCKn0Efqpi++lvb1/vhfHvWjlV M+Y9C6uRKK1DXZ6Pj6OCK7sTz0Jt3WqCmPZFPwkBGHBFnFVG+7My74ssh83Zt8YSe3 C7nkAus3T02QzekE/35VNdoNHudfIWnRO50oneKKRycvyh4QnZ2yB+3GzohdG7V5bb ZMUDdNrZ5ISM/uZH5OOcm9tJEsvZIe9itTSKF9EvbsY2eF5MVcr8j37YcfpHx4o6uC HkDocdz5y/S4g== From: Maxime Ripard Date: Tue, 07 May 2024 15:17:21 +0200 Subject: [PATCH v13 03/28] drm/tests: connector: Add tests for drmm_connector_hdmi_init MIME-Version: 1.0 Message-Id: <20240507-kms-hdmi-connector-state-v13-3-8fafc5efe8be@kernel.org> References: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> In-Reply-To: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Andy Yan Cc: Hans Verkuil , Sebastian Wick , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, Maxime Ripard , Dave Stevenson X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=5120; i=mripard@kernel.org; h=from:subject:message-id; bh=kpugqRRTtI2zqYUkrRQOUtStRse4zcye8LofRM1/4QM=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDGlWmi8+V+xLPLxdYkna22kmFZM3zJpR8aP/300vrcYgw c7115OmdkxlYRDmZJAVU2R5IhN2enn74ioH+5U/YOawMoEMYeDiFICJTO1hrDP4eELMfW2m87zL W0KmT9UwtePdXbjZ4b3WSsW9648lTNhzt1/dY/sKtfBm6RPxtde79Bgbjl9lOnV2NS+f5a1HPKu W3AkJm62/1r6qpVU55NWh6UfD7HL/9bbl9+1bFbL46OzrpkqRAA== X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240507_061753_584890_6C60D190 X-CRM114-Status: GOOD ( 12.40 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org We just introduced a new initialization function for our connectors, so let's build a kunit test suite for it as well. Reviewed-by: Dave Stevenson Signed-off-by: Maxime Ripard --- drivers/gpu/drm/tests/drm_connector_test.c | 123 +++++++++++++++++++++++++++++ 1 file changed, 123 insertions(+) diff --git a/drivers/gpu/drm/tests/drm_connector_test.c b/drivers/gpu/drm/tests/drm_connector_test.c index 44f82ed2a958..261d4109946d 100644 --- a/drivers/gpu/drm/tests/drm_connector_test.c +++ b/drivers/gpu/drm/tests/drm_connector_test.c @@ -170,10 +170,132 @@ static struct kunit_suite drmm_connector_init_test_suite = { .name = "drmm_connector_init", .init = drm_test_connector_init, .test_cases = drmm_connector_init_tests, }; +/* + * Test that the registration of a bog standard connector works as + * expected and doesn't report any error. + */ +static void drm_test_connector_hdmi_init_valid(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + &dummy_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc); + KUNIT_EXPECT_EQ(test, ret, 0); +} + +/* + * Test that the registration of a connector without a DDC adapter + * doesn't report any error. + */ +static void drm_test_connector_hdmi_init_null_ddc(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + &dummy_funcs, + DRM_MODE_CONNECTOR_HDMIA, + NULL); + KUNIT_EXPECT_EQ(test, ret, 0); +} + +/* + * Test that the registration of an HDMI connector with an HDMI + * connector type succeeds. + */ +static void drm_test_connector_hdmi_init_type_valid(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + unsigned int connector_type = *(unsigned int *)test->param_value; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + &dummy_funcs, + connector_type, + &priv->ddc); + KUNIT_EXPECT_EQ(test, ret, 0); +} + +static const unsigned int drm_connector_hdmi_init_type_valid_tests[] = { + DRM_MODE_CONNECTOR_HDMIA, + DRM_MODE_CONNECTOR_HDMIB, +}; + +static void drm_connector_hdmi_init_type_desc(const unsigned int *type, char *desc) +{ + sprintf(desc, "%s", drm_get_connector_type_name(*type)); +} + +KUNIT_ARRAY_PARAM(drm_connector_hdmi_init_type_valid, + drm_connector_hdmi_init_type_valid_tests, + drm_connector_hdmi_init_type_desc); + +/* + * Test that the registration of an HDMI connector with an !HDMI + * connector type fails. + */ +static void drm_test_connector_hdmi_init_type_invalid(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + unsigned int connector_type = *(unsigned int *)test->param_value; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + &dummy_funcs, + connector_type, + &priv->ddc); + KUNIT_EXPECT_LT(test, ret, 0); +} + +static const unsigned int drm_connector_hdmi_init_type_invalid_tests[] = { + DRM_MODE_CONNECTOR_Unknown, + DRM_MODE_CONNECTOR_VGA, + DRM_MODE_CONNECTOR_DVII, + DRM_MODE_CONNECTOR_DVID, + DRM_MODE_CONNECTOR_DVIA, + DRM_MODE_CONNECTOR_Composite, + DRM_MODE_CONNECTOR_SVIDEO, + DRM_MODE_CONNECTOR_LVDS, + DRM_MODE_CONNECTOR_Component, + DRM_MODE_CONNECTOR_9PinDIN, + DRM_MODE_CONNECTOR_DisplayPort, + DRM_MODE_CONNECTOR_TV, + DRM_MODE_CONNECTOR_eDP, + DRM_MODE_CONNECTOR_VIRTUAL, + DRM_MODE_CONNECTOR_DSI, + DRM_MODE_CONNECTOR_DPI, + DRM_MODE_CONNECTOR_WRITEBACK, + DRM_MODE_CONNECTOR_SPI, + DRM_MODE_CONNECTOR_USB, +}; + +KUNIT_ARRAY_PARAM(drm_connector_hdmi_init_type_invalid, + drm_connector_hdmi_init_type_invalid_tests, + drm_connector_hdmi_init_type_desc); + +static struct kunit_case drmm_connector_hdmi_init_tests[] = { + KUNIT_CASE(drm_test_connector_hdmi_init_valid), + KUNIT_CASE(drm_test_connector_hdmi_init_null_ddc), + KUNIT_CASE_PARAM(drm_test_connector_hdmi_init_type_valid, + drm_connector_hdmi_init_type_valid_gen_params), + KUNIT_CASE_PARAM(drm_test_connector_hdmi_init_type_invalid, + drm_connector_hdmi_init_type_invalid_gen_params), + { } +}; + +static struct kunit_suite drmm_connector_hdmi_init_test_suite = { + .name = "drmm_connector_hdmi_init", + .init = drm_test_connector_init, + .test_cases = drmm_connector_hdmi_init_tests, +}; + struct drm_get_tv_mode_from_name_test { const char *name; enum drm_connector_tv_mode expected_mode; }; @@ -234,10 +356,11 @@ static struct kunit_suite drm_get_tv_mode_from_name_test_suite = { .name = "drm_get_tv_mode_from_name", .test_cases = drm_get_tv_mode_from_name_tests, }; kunit_test_suites( + &drmm_connector_hdmi_init_test_suite, &drmm_connector_init_test_suite, &drm_get_tv_mode_from_name_test_suite ); MODULE_AUTHOR("Maxime Ripard "); From patchwork Tue May 7 13:17:22 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13657216 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 8AB1FC25B74 for ; Tue, 7 May 2024 14:31:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References:Message-Id :MIME-Version:Subject:Date:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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Tue, 7 May 2024 13:17:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1715087875; bh=ZxPNHVmZZvp6DhYb1bewrikyiz/zTJuIlSDKJ6zcGWQ=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=QQQr7lb9+9pjIEC+yhJrLszRuvSfDgr3FfOlDZTytA6GxlWbQ084ypTVQzAFymX+4 XjJhSv/RRb2ZfVY9MqWoHHtQ6FIG2OtWuqn2chXcUGmTLiFYlXWsX3yJCs9DJaPImr qSKY8svnIg3W+bpPzO/kzvvjwleqZDR5sJHDXWR4LheScred+t/PV2PdrKDstPQj1m fgLsoQCHzSrPg/FsI1h8K98s590ndE0T9jp0Csg3cYsnQmW7zgmB7/mGyr4yIuOMl1 tmPqE29Hlqol7+/BqP3v4K7er6jMdsVE52bxTe+8PXhW/HWRApOyTYQBTi0c3Jcr5/ Tc6NJUXH5JU4w== From: Maxime Ripard Date: Tue, 07 May 2024 15:17:22 +0200 Subject: [PATCH v13 04/28] drm/connector: hdmi: Create an HDMI sub-state MIME-Version: 1.0 Message-Id: <20240507-kms-hdmi-connector-state-v13-4-8fafc5efe8be@kernel.org> References: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> In-Reply-To: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Andy Yan Cc: Hans Verkuil , Sebastian Wick , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, Maxime Ripard , Dave Stevenson , Sui Jingfeng X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=5176; i=mripard@kernel.org; h=from:subject:message-id; bh=ZxPNHVmZZvp6DhYb1bewrikyiz/zTJuIlSDKJ6zcGWQ=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDGlWmi8YX4Zmt5dmsN39/WPPltCN/v91FT0v9jCUrTO6/ bY9Tehvx1QWBmFOBlkxRZYnMmGnl7cvrnKwX/kDZg4rE8gQBi5OAZgI73zGhoU+q/Oyp2mLbrq8 1r+yYtGHXRvrZ+jKh9lY+bV6vWLbtz/vxtSfKd3nvgQ2r2rfFLNWgLHh17Z3WX+e/F5zYLX1B6W 6vFWXlvS0WS6zf+aw+9xLyQ1PDd91M9R+21H1Li77XZhW2bpAAA== X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240507_061756_357458_C782BE52 X-CRM114-Status: GOOD ( 16.13 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The next features we will need to share across drivers will need to store some parameters for drivers to use, such as the selected output format. Let's create a new connector sub-state dedicated to HDMI controllers, that will eventually store everything we need. Reviewed-by: Dave Stevenson Reviewed-by: Sui Jingfeng Signed-off-by: Maxime Ripard --- drivers/gpu/drm/display/Kconfig | 7 +++++ drivers/gpu/drm/display/Makefile | 2 ++ drivers/gpu/drm/display/drm_hdmi_state_helper.c | 41 +++++++++++++++++++++++++ include/drm/display/drm_hdmi_state_helper.h | 16 ++++++++++ include/drm/drm_connector.h | 7 +++++ 5 files changed, 73 insertions(+) diff --git a/drivers/gpu/drm/display/Kconfig b/drivers/gpu/drm/display/Kconfig index 864a6488bfdf..14114b597ef4 100644 --- a/drivers/gpu/drm/display/Kconfig +++ b/drivers/gpu/drm/display/Kconfig @@ -68,5 +68,12 @@ config DRM_DISPLAY_HDCP_HELPER config DRM_DISPLAY_HDMI_HELPER bool depends on DRM_DISPLAY_HELPER help DRM display helpers for HDMI. + +config DRM_DISPLAY_HDMI_STATE_HELPER + bool + depends on DRM_DISPLAY_HELPER + depends on DRM_DISPLAY_HDMI_HELPER + help + DRM KMS state helpers for HDMI. diff --git a/drivers/gpu/drm/display/Makefile b/drivers/gpu/drm/display/Makefile index 17d2cc73ff56..629df2f4d322 100644 --- a/drivers/gpu/drm/display/Makefile +++ b/drivers/gpu/drm/display/Makefile @@ -12,9 +12,11 @@ drm_display_helper-$(CONFIG_DRM_DISPLAY_DP_TUNNEL) += \ drm_dp_tunnel.o drm_display_helper-$(CONFIG_DRM_DISPLAY_HDCP_HELPER) += drm_hdcp_helper.o drm_display_helper-$(CONFIG_DRM_DISPLAY_HDMI_HELPER) += \ drm_hdmi_helper.o \ drm_scdc_helper.o +drm_display_helper-$(CONFIG_DRM_DISPLAY_HDMI_STATE_HELPER) += \ + drm_hdmi_state_helper.o drm_display_helper-$(CONFIG_DRM_DISPLAY_DP_AUX_CHARDEV) += drm_dp_aux_dev.o drm_display_helper-$(CONFIG_DRM_DISPLAY_DP_AUX_CEC) += drm_dp_cec.o obj-$(CONFIG_DRM_DISPLAY_HELPER) += drm_display_helper.o diff --git a/drivers/gpu/drm/display/drm_hdmi_state_helper.c b/drivers/gpu/drm/display/drm_hdmi_state_helper.c new file mode 100644 index 000000000000..1e92c1108d23 --- /dev/null +++ b/drivers/gpu/drm/display/drm_hdmi_state_helper.c @@ -0,0 +1,41 @@ +// SPDX-License-Identifier: MIT + +#include +#include + +#include + +/** + * __drm_atomic_helper_connector_hdmi_reset() - Initializes all HDMI @drm_connector_state resources + * @connector: DRM connector + * @new_conn_state: connector state to reset + * + * Initializes all HDMI resources from a @drm_connector_state without + * actually allocating it. This is useful for HDMI drivers, in + * combination with __drm_atomic_helper_connector_reset() or + * drm_atomic_helper_connector_reset(). + */ +void __drm_atomic_helper_connector_hdmi_reset(struct drm_connector *connector, + struct drm_connector_state *new_conn_state) +{ +} +EXPORT_SYMBOL(__drm_atomic_helper_connector_hdmi_reset); + +/** + * drm_atomic_helper_connector_hdmi_check() - Helper to check HDMI connector atomic state + * @connector: DRM Connector + * @state: the DRM State object + * + * Provides a default connector state check handler for HDMI connectors. + * Checks that a desired connector update is valid, and updates various + * fields of derived state. + * + * RETURNS: + * Zero on success, or an errno code otherwise. + */ +int drm_atomic_helper_connector_hdmi_check(struct drm_connector *connector, + struct drm_atomic_state *state) +{ + return 0; +} +EXPORT_SYMBOL(drm_atomic_helper_connector_hdmi_check); diff --git a/include/drm/display/drm_hdmi_state_helper.h b/include/drm/display/drm_hdmi_state_helper.h new file mode 100644 index 000000000000..6021983e2602 --- /dev/null +++ b/include/drm/display/drm_hdmi_state_helper.h @@ -0,0 +1,16 @@ +#/* SPDX-License-Identifier: MIT */ + +#ifndef DRM_HDMI_STATE_HELPER_H_ +#define DRM_HDMI_STATE_HELPER_H_ + +struct drm_atomic_state; +struct drm_connector; +struct drm_connector_state; + +void __drm_atomic_helper_connector_hdmi_reset(struct drm_connector *connector, + struct drm_connector_state *new_conn_state); + +int drm_atomic_helper_connector_hdmi_check(struct drm_connector *connector, + struct drm_atomic_state *state); + +#endif // DRM_HDMI_STATE_HELPER_H_ diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index 4491c4c2fb6e..000a2a156619 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -1029,10 +1029,17 @@ struct drm_connector_state { /** * @hdr_output_metadata: * DRM blob property for HDR output metadata */ struct drm_property_blob *hdr_output_metadata; + + /** + * @hdmi: HDMI-related variable and properties. Filled by + * @drm_atomic_helper_connector_hdmi_check(). + */ + struct { + } hdmi; }; /** * struct drm_connector_funcs - control connectors on a given device * From patchwork Tue May 7 13:17:23 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13657217 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 7D945C25B4F for ; Tue, 7 May 2024 14:31:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References:Message-Id :MIME-Version:Subject:Date:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=jBJrHsFO//yYhmr1RSAjHfiXs86TBJQ4uzNNEbccrHU=; b=prqmfJY0jXIAS1 DKhGmiY+XH2/QmVGWH3caHuQ9cfvv6bkp5izVKDbF85/qkQBO4UZxFrteQHP8IjHw5ObLjovyVbYR 2JCG5dKsTHSrmLaCXgH08+OdMSMfYmNjsEIQ6Tkjj0xqJMNplDtRmBm4keO8hxvKz2b13oxLThzNb DRV44PW33q6e7Wq2bZfR9v2TBIgMp++SBv/XjrMPjhUmsOxabScchEV5eCSBwgjuj6XSzvlKzV+Rb iH5W4HqSyX93M0F18A4ZHnNkT61VduttWQJkvV50PV+Xsi+xplORT5pThiUW0xKTv9FjPyrZCV//1 niXA6LaqCudAfg8IVsDQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1s4Lq9-0000000BVc6-3sl7; Tue, 07 May 2024 14:30:45 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1s4Khj-0000000B9HR-1543; Tue, 07 May 2024 13:18:05 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 5507761761; Tue, 7 May 2024 13:17:58 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C82A1C2BBFC; Tue, 7 May 2024 13:17:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1715087878; bh=owP35/lfcIiPjLv3YT3El2ep8MeKMiw13ZPb1964ipI=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=OtsVKFM9bh2npAztoxgAeblGJxHb0vPMAAXG/I01zy/IhcyXloY+ec+JzGppWVxCQ vXC1R5CjZ/kdnBdj/1L1DQcJy57L7U7phX8sLIqXw9DT/ncaOix+Rfj0LkKF0SfFmB EbBtaQIERNwxo+vw165xTDNolGWkYT9jRpH7MgNcRCKDiHeUSbY4VLQMRa/OC7SCLa LNOEFWZtt4iPQ5lJ5F5m+kKa4HNqNWBjVXY1cDUdfHagDfDFIUqPhIg8ArLNF/09+G KObnh9yOX2GlMCsixUTWLEf0g6R5lDdnNwFrTiQDKmeSTGHmf4SoUVgPLVuOIKp5KO wTzd2q5oCrJLA== From: Maxime Ripard Date: Tue, 07 May 2024 15:17:23 +0200 Subject: [PATCH v13 05/28] drm/connector: hdmi: Add output BPC to the connector state MIME-Version: 1.0 Message-Id: <20240507-kms-hdmi-connector-state-v13-5-8fafc5efe8be@kernel.org> References: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> In-Reply-To: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Andy Yan Cc: Hans Verkuil , Sebastian Wick , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, Maxime Ripard , Dave Stevenson X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=8958; i=mripard@kernel.org; h=from:subject:message-id; bh=owP35/lfcIiPjLv3YT3El2ep8MeKMiw13ZPb1964ipI=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDGlWmi9FdRIKWJX/rZb7oCBiqftL6fKJjZfjPnzasrOe6 RCzU2xLx1QWBmFOBlkxRZYnMmGnl7cvrnKwX/kDZg4rE8gQBi5OAZhITgpjw82qkpZb/xXP/trU 9l57i5yEM8cviV2d1Qtz9y5LkI6e7/3tt2kfk/SWJJEV889LKM+UYaxPWt3Yq+RuossZM1nDUfh 418/e2eka7+bmbXH+9n2DyAeRPT3W+c/jHRmLmNgeMBXvXQkA X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240507_061759_813558_916D5374 X-CRM114-Status: GOOD ( 20.40 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org We'll add automatic selection of the output BPC in a following patch, but let's add it to the HDMI connector state already. Reviewed-by: Dave Stevenson Signed-off-by: Maxime Ripard --- drivers/gpu/drm/display/drm_hdmi_state_helper.c | 20 ++++++++++++++++++++ drivers/gpu/drm/drm_atomic.c | 5 +++++ drivers/gpu/drm/drm_connector.c | 20 +++++++++++++++++++- drivers/gpu/drm/tests/drm_connector_test.c | 12 ++++++++---- include/drm/drm_connector.h | 12 +++++++++++- 5 files changed, 63 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/display/drm_hdmi_state_helper.c b/drivers/gpu/drm/display/drm_hdmi_state_helper.c index 1e92c1108d23..82293d93b5f8 100644 --- a/drivers/gpu/drm/display/drm_hdmi_state_helper.c +++ b/drivers/gpu/drm/display/drm_hdmi_state_helper.c @@ -16,10 +16,14 @@ * drm_atomic_helper_connector_reset(). */ void __drm_atomic_helper_connector_hdmi_reset(struct drm_connector *connector, struct drm_connector_state *new_conn_state) { + unsigned int max_bpc = connector->max_bpc; + + new_conn_state->max_bpc = max_bpc; + new_conn_state->max_requested_bpc = max_bpc; } EXPORT_SYMBOL(__drm_atomic_helper_connector_hdmi_reset); /** * drm_atomic_helper_connector_hdmi_check() - Helper to check HDMI connector atomic state @@ -34,8 +38,24 @@ EXPORT_SYMBOL(__drm_atomic_helper_connector_hdmi_reset); * Zero on success, or an errno code otherwise. */ int drm_atomic_helper_connector_hdmi_check(struct drm_connector *connector, struct drm_atomic_state *state) { + struct drm_connector_state *old_conn_state = + drm_atomic_get_old_connector_state(state, connector); + struct drm_connector_state *new_conn_state = + drm_atomic_get_new_connector_state(state, connector); + + if (old_conn_state->hdmi.output_bpc != new_conn_state->hdmi.output_bpc) { + struct drm_crtc *crtc = new_conn_state->crtc; + struct drm_crtc_state *crtc_state; + + crtc_state = drm_atomic_get_crtc_state(state, crtc); + if (IS_ERR(crtc_state)) + return PTR_ERR(crtc_state); + + crtc_state->mode_changed = true; + } + return 0; } EXPORT_SYMBOL(drm_atomic_helper_connector_hdmi_check); diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index a91737adf8e7..4e11cfb4518b 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -1141,10 +1141,15 @@ static void drm_atomic_connector_print_state(struct drm_printer *p, drm_printf(p, "\tcrtc=%s\n", state->crtc ? state->crtc->name : "(null)"); drm_printf(p, "\tself_refresh_aware=%d\n", state->self_refresh_aware); drm_printf(p, "\tmax_requested_bpc=%d\n", state->max_requested_bpc); drm_printf(p, "\tcolorspace=%s\n", drm_get_colorspace_name(state->colorspace)); + if (connector->connector_type == DRM_MODE_CONNECTOR_HDMIA || + connector->connector_type == DRM_MODE_CONNECTOR_HDMIB) { + drm_printf(p, "\toutput_bpc=%u\n", state->hdmi.output_bpc); + } + if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK) if (state->writeback_job && state->writeback_job->fb) drm_printf(p, "\tfb=%d\n", state->writeback_job->fb->base.id); if (connector->funcs->atomic_print_state) diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index d9961cce8245..da51a2bcb978 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -457,10 +457,11 @@ EXPORT_SYMBOL(drmm_connector_init); * @dev: DRM device * @connector: A pointer to the HDMI connector to init * @funcs: callbacks for this connector * @connector_type: user visible type of the connector * @ddc: optional pointer to the associated ddc adapter + * @max_bpc: Maximum bits per char the HDMI connector supports * * Initialises a preallocated HDMI connector. Connectors can be * subclassed as part of driver connector objects. * * Cleanup is automatically handled with a call to @@ -473,22 +474,39 @@ EXPORT_SYMBOL(drmm_connector_init); */ int drmm_connector_hdmi_init(struct drm_device *dev, struct drm_connector *connector, const struct drm_connector_funcs *funcs, int connector_type, - struct i2c_adapter *ddc) + struct i2c_adapter *ddc, + unsigned int max_bpc) { int ret; if (!(connector_type == DRM_MODE_CONNECTOR_HDMIA || connector_type == DRM_MODE_CONNECTOR_HDMIB)) return -EINVAL; + if (!(max_bpc == 8 || max_bpc == 10 || max_bpc == 12)) + return -EINVAL; + ret = drmm_connector_init(dev, connector, funcs, connector_type, ddc); if (ret) return ret; + /* + * drm_connector_attach_max_bpc_property() requires the + * connector to have a state. + */ + if (connector->funcs->reset) + connector->funcs->reset(connector); + + drm_connector_attach_max_bpc_property(connector, 8, max_bpc); + connector->max_bpc = max_bpc; + + if (max_bpc > 8) + drm_connector_attach_hdr_output_metadata_property(connector); + return 0; } EXPORT_SYMBOL(drmm_connector_hdmi_init); /** diff --git a/drivers/gpu/drm/tests/drm_connector_test.c b/drivers/gpu/drm/tests/drm_connector_test.c index 261d4109946d..2661eb64a5cd 100644 --- a/drivers/gpu/drm/tests/drm_connector_test.c +++ b/drivers/gpu/drm/tests/drm_connector_test.c @@ -182,11 +182,12 @@ static void drm_test_connector_hdmi_init_valid(struct kunit *test) int ret; ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, &dummy_funcs, DRM_MODE_CONNECTOR_HDMIA, - &priv->ddc); + &priv->ddc, + 8); KUNIT_EXPECT_EQ(test, ret, 0); } /* * Test that the registration of a connector without a DDC adapter @@ -198,11 +199,12 @@ static void drm_test_connector_hdmi_init_null_ddc(struct kunit *test) int ret; ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, &dummy_funcs, DRM_MODE_CONNECTOR_HDMIA, - NULL); + NULL, + 8); KUNIT_EXPECT_EQ(test, ret, 0); } /* * Test that the registration of an HDMI connector with an HDMI @@ -215,11 +217,12 @@ static void drm_test_connector_hdmi_init_type_valid(struct kunit *test) int ret; ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, &dummy_funcs, connector_type, - &priv->ddc); + &priv->ddc, + 8); KUNIT_EXPECT_EQ(test, ret, 0); } static const unsigned int drm_connector_hdmi_init_type_valid_tests[] = { DRM_MODE_CONNECTOR_HDMIA, @@ -246,11 +249,12 @@ static void drm_test_connector_hdmi_init_type_invalid(struct kunit *test) int ret; ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, &dummy_funcs, connector_type, - &priv->ddc); + &priv->ddc, + 8); KUNIT_EXPECT_LT(test, ret, 0); } static const unsigned int drm_connector_hdmi_init_type_invalid_tests[] = { DRM_MODE_CONNECTOR_Unknown, diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index 000a2a156619..d4d2ae15bc1e 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -1035,10 +1035,14 @@ struct drm_connector_state { /** * @hdmi: HDMI-related variable and properties. Filled by * @drm_atomic_helper_connector_hdmi_check(). */ struct { + /** + * @output_bpc: Bits per color channel to output. + */ + unsigned int output_bpc; } hdmi; }; /** * struct drm_connector_funcs - control connectors on a given device @@ -1680,10 +1684,15 @@ struct drm_connector { * DRM blob property data for the DP MST path property. This should only * be updated by calling drm_connector_set_path_property(). */ struct drm_property_blob *path_blob_ptr; + /** + * @max_bpc: Maximum bits per color channel the connector supports. + */ + unsigned int max_bpc; + /** * @max_bpc_property: Default connector property for the max bpc to be * driven out of the connector. */ struct drm_property *max_bpc_property; @@ -1913,11 +1922,12 @@ int drmm_connector_init(struct drm_device *dev, struct i2c_adapter *ddc); int drmm_connector_hdmi_init(struct drm_device *dev, struct drm_connector *connector, const struct drm_connector_funcs *funcs, int connector_type, - struct i2c_adapter *ddc); + struct i2c_adapter *ddc, + unsigned int max_bpc); void drm_connector_attach_edid_property(struct drm_connector *connector); int drm_connector_register(struct drm_connector *connector); void drm_connector_unregister(struct drm_connector *connector); int drm_connector_attach_encoder(struct drm_connector *connector, struct drm_encoder *encoder); From patchwork Tue May 7 13:17:24 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13657214 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 2BF2AC10F1A for ; Tue, 7 May 2024 14:30:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References:Message-Id :MIME-Version:Subject:Date:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=T8SDrm/tEsYGobzl2jgBJmCIiTzVY8mUpoUahJe7B9w=; 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a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1715087881; bh=TSQP3CqVFKIGs1NY2QW3yB07VcU4ytCYK6pkb7LAi54=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=C4Xoy316CFAAZ7h+aGkGh9nfEm8N+2qB8nDLFl6+03CRpDSXuBhSZAiwLZasFNj7D n4P7oHyllD27UT9JhFu0DiYPPISuoa5yRZ/59wdzH7/OtMkUuSmPjrdhW+PYS38DTv dAyDNoo/jq1KaySllAoU5dWJo5AVwooa2Np5U6VktgyxUDjr4JftuSsYNWt09CAbv7 Yfy8CCQBzdWGq86VTuoyexxsQB8FTuKtGrETgLB6Ms4s75/Xl+G16Ib7JFQQC9qH84 OtO+yNa6Kz8bPgDkfM8vo4masrROwh3UMgogZUW3Rb6LDnUzzHTgd2NkI7XW0CgeTM YbcXEN2R4vp0g== From: Maxime Ripard Date: Tue, 07 May 2024 15:17:24 +0200 Subject: [PATCH v13 06/28] drm/tests: Add output bpc tests MIME-Version: 1.0 Message-Id: <20240507-kms-hdmi-connector-state-v13-6-8fafc5efe8be@kernel.org> References: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> In-Reply-To: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Andy Yan Cc: Hans Verkuil , Sebastian Wick , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, Maxime Ripard , Dave Stevenson X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=27172; i=mripard@kernel.org; h=from:subject:message-id; bh=TSQP3CqVFKIGs1NY2QW3yB07VcU4ytCYK6pkb7LAi54=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDGlWmi+PXzyqc8idbce3Cv11b8InzT7v4731+VvNvlVXD T8diHu9tGMqC4MwJ4OsmCLLE5mw08vbF1c52K/8ATOHlQlkCAMXpwBMpEmNseFQdsPcNJGZW08J GQpsutkb4W74+dD8rEub8tb9zYutkMnIfv5ZJWz5txyFbdc3FxSV8THW+5XmW97WPPPNlWe9VIR Ob3nhn06HqWHJfxxq9Jln1dRwKEd2u+eJe4SZLFrc/mzKKy0A X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240507_061803_419353_42B8F866 X-CRM114-Status: GOOD ( 18.51 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Now that we're tracking the output bpc count in the connector state, let's add a few tests to make sure it works as expected. Reviewed-by: Dave Stevenson Signed-off-by: Maxime Ripard --- drivers/gpu/drm/Kconfig | 1 + drivers/gpu/drm/tests/Makefile | 1 + drivers/gpu/drm/tests/drm_connector_test.c | 140 +++++++ drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c | 438 +++++++++++++++++++++ drivers/gpu/drm/tests/drm_kunit_edid.h | 106 +++++ 5 files changed, 686 insertions(+) diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index 026444eeb5c6..9703429de6b9 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -77,10 +77,11 @@ config DRM_KUNIT_TEST_HELPERS config DRM_KUNIT_TEST tristate "KUnit tests for DRM" if !KUNIT_ALL_TESTS depends on DRM && KUNIT && MMU select DRM_BUDDY select DRM_DISPLAY_DP_HELPER + select DRM_DISPLAY_HDMI_STATE_HELPER select DRM_DISPLAY_HELPER select DRM_EXEC select DRM_EXPORT_FOR_TESTS if m select DRM_GEM_SHMEM_HELPER select DRM_KUNIT_TEST_HELPERS diff --git a/drivers/gpu/drm/tests/Makefile b/drivers/gpu/drm/tests/Makefile index d6183b3d7688..56dab563abd7 100644 --- a/drivers/gpu/drm/tests/Makefile +++ b/drivers/gpu/drm/tests/Makefile @@ -12,10 +12,11 @@ obj-$(CONFIG_DRM_KUNIT_TEST) += \ drm_exec_test.o \ drm_format_helper_test.o \ drm_format_test.o \ drm_framebuffer_test.o \ drm_gem_shmem_test.o \ + drm_hdmi_state_helper_test.o \ drm_managed_test.o \ drm_mm_test.o \ drm_modes_test.o \ drm_plane_helper_test.o \ drm_probe_helper_test.o \ diff --git a/drivers/gpu/drm/tests/drm_connector_test.c b/drivers/gpu/drm/tests/drm_connector_test.c index 2661eb64a5cd..2519b91de95e 100644 --- a/drivers/gpu/drm/tests/drm_connector_test.c +++ b/drivers/gpu/drm/tests/drm_connector_test.c @@ -10,10 +10,12 @@ #include #include #include +#include "../drm_crtc_internal.h" + struct drm_connector_init_priv { struct drm_device drm; struct drm_connector connector; struct i2c_adapter ddc; }; @@ -204,10 +206,143 @@ static void drm_test_connector_hdmi_init_null_ddc(struct kunit *test) NULL, 8); KUNIT_EXPECT_EQ(test, ret, 0); } +/* + * Test that the registration of a connector with an invalid maximum bpc + * count fails. + */ +static void drm_test_connector_hdmi_init_bpc_invalid(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + &dummy_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + 9); + KUNIT_EXPECT_LT(test, ret, 0); +} + +/* + * Test that the registration of a connector with a null maximum bpc + * count fails. + */ +static void drm_test_connector_hdmi_init_bpc_null(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + &dummy_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + 0); + KUNIT_EXPECT_LT(test, ret, 0); +} + +/* + * Test that the registration of a connector with a maximum bpc count of + * 8 succeeds, registers the max bpc property, but doesn't register the + * HDR output metadata one. + */ +static void drm_test_connector_hdmi_init_bpc_8(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + struct drm_connector *connector = &priv->connector; + struct drm_property *prop; + uint64_t val; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, connector, + &dummy_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + 8); + KUNIT_EXPECT_EQ(test, ret, 0); + + prop = connector->max_bpc_property; + KUNIT_ASSERT_NOT_NULL(test, prop); + KUNIT_EXPECT_NOT_NULL(test, drm_mode_obj_find_prop_id(&connector->base, prop->base.id)); + + ret = drm_object_property_get_value(&connector->base, prop, &val); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_EQ(test, val, 8); + + prop = priv->drm.mode_config.hdr_output_metadata_property; + KUNIT_ASSERT_NOT_NULL(test, prop); + KUNIT_EXPECT_NULL(test, drm_mode_obj_find_prop_id(&connector->base, prop->base.id)); +} + +/* + * Test that the registration of a connector with a maximum bpc count of + * 10 succeeds and registers the max bpc and HDR output metadata + * properties. + */ +static void drm_test_connector_hdmi_init_bpc_10(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + struct drm_connector *connector = &priv->connector; + struct drm_property *prop; + uint64_t val; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, connector, + &dummy_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + 10); + KUNIT_EXPECT_EQ(test, ret, 0); + + prop = connector->max_bpc_property; + KUNIT_ASSERT_NOT_NULL(test, prop); + KUNIT_EXPECT_NOT_NULL(test, drm_mode_obj_find_prop_id(&connector->base, prop->base.id)); + + ret = drm_object_property_get_value(&connector->base, prop, &val); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_EQ(test, val, 10); + + prop = priv->drm.mode_config.hdr_output_metadata_property; + KUNIT_ASSERT_NOT_NULL(test, prop); + KUNIT_EXPECT_NOT_NULL(test, drm_mode_obj_find_prop_id(&connector->base, prop->base.id)); +} + +/* + * Test that the registration of a connector with a maximum bpc count of + * 12 succeeds and registers the max bpc and HDR output metadata + * properties. + */ +static void drm_test_connector_hdmi_init_bpc_12(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + struct drm_connector *connector = &priv->connector; + struct drm_property *prop; + uint64_t val; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, connector, + &dummy_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + 12); + KUNIT_EXPECT_EQ(test, ret, 0); + + prop = connector->max_bpc_property; + KUNIT_ASSERT_NOT_NULL(test, prop); + KUNIT_EXPECT_NOT_NULL(test, drm_mode_obj_find_prop_id(&connector->base, prop->base.id)); + + ret = drm_object_property_get_value(&connector->base, prop, &val); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_EQ(test, val, 12); + + prop = priv->drm.mode_config.hdr_output_metadata_property; + KUNIT_ASSERT_NOT_NULL(test, prop); + KUNIT_EXPECT_NOT_NULL(test, drm_mode_obj_find_prop_id(&connector->base, prop->base.id)); +} + /* * Test that the registration of an HDMI connector with an HDMI * connector type succeeds. */ static void drm_test_connector_hdmi_init_type_valid(struct kunit *test) @@ -282,10 +417,15 @@ KUNIT_ARRAY_PARAM(drm_connector_hdmi_init_type_invalid, drm_connector_hdmi_init_type_invalid_tests, drm_connector_hdmi_init_type_desc); static struct kunit_case drmm_connector_hdmi_init_tests[] = { KUNIT_CASE(drm_test_connector_hdmi_init_valid), + KUNIT_CASE(drm_test_connector_hdmi_init_bpc_8), + KUNIT_CASE(drm_test_connector_hdmi_init_bpc_10), + KUNIT_CASE(drm_test_connector_hdmi_init_bpc_12), + KUNIT_CASE(drm_test_connector_hdmi_init_bpc_invalid), + KUNIT_CASE(drm_test_connector_hdmi_init_bpc_null), KUNIT_CASE(drm_test_connector_hdmi_init_null_ddc), KUNIT_CASE_PARAM(drm_test_connector_hdmi_init_type_valid, drm_connector_hdmi_init_type_valid_gen_params), KUNIT_CASE_PARAM(drm_test_connector_hdmi_init_type_invalid, drm_connector_hdmi_init_type_invalid_gen_params), diff --git a/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c b/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c new file mode 100644 index 000000000000..3ecae50ef47f --- /dev/null +++ b/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c @@ -0,0 +1,438 @@ +// SPDX-License-Identifier: GPL-2.0 + +/* + * Kunit test for drm_hdmi_state_helper functions + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "../drm_crtc_internal.h" + +#include + +#include "drm_kunit_edid.h" + +struct drm_atomic_helper_connector_hdmi_priv { + struct drm_device drm; + struct drm_plane *plane; + struct drm_crtc *crtc; + struct drm_encoder encoder; + struct drm_connector connector; + + const char *current_edid; + size_t current_edid_len; +}; + +#define connector_to_priv(c) \ + container_of_const(c, struct drm_atomic_helper_connector_hdmi_priv, connector) + +static struct drm_display_mode *find_preferred_mode(struct drm_connector *connector) +{ + struct drm_device *drm = connector->dev; + struct drm_display_mode *mode, *preferred; + + mutex_lock(&drm->mode_config.mutex); + preferred = list_first_entry(&connector->modes, struct drm_display_mode, head); + list_for_each_entry(mode, &connector->modes, head) + if (mode->type & DRM_MODE_TYPE_PREFERRED) + preferred = mode; + mutex_unlock(&drm->mode_config.mutex); + + return preferred; +} + +static int light_up_connector(struct kunit *test, + struct drm_device *drm, + struct drm_crtc *crtc, + struct drm_connector *connector, + struct drm_display_mode *mode, + struct drm_modeset_acquire_ctx *ctx) +{ + struct drm_atomic_state *state; + struct drm_connector_state *conn_state; + struct drm_crtc_state *crtc_state; + int ret; + + state = drm_kunit_helper_atomic_state_alloc(test, drm, ctx); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); + + conn_state = drm_atomic_get_connector_state(state, connector); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + + ret = drm_atomic_set_crtc_for_connector(conn_state, crtc); + KUNIT_EXPECT_EQ(test, ret, 0); + + crtc_state = drm_atomic_get_crtc_state(state, crtc); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc_state); + + ret = drm_atomic_set_mode_for_crtc(crtc_state, mode); + KUNIT_EXPECT_EQ(test, ret, 0); + + crtc_state->enable = true; + crtc_state->active = true; + + ret = drm_atomic_commit(state); + KUNIT_ASSERT_EQ(test, ret, 0); + + return 0; +} + +static int set_connector_edid(struct kunit *test, struct drm_connector *connector, + const char *edid, size_t edid_len) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv = + connector_to_priv(connector); + struct drm_device *drm = connector->dev; + int ret; + + priv->current_edid = edid; + priv->current_edid_len = edid_len; + + mutex_lock(&drm->mode_config.mutex); + ret = connector->funcs->fill_modes(connector, 4096, 4096); + mutex_unlock(&drm->mode_config.mutex); + KUNIT_ASSERT_GT(test, ret, 0); + + return 0; +} + +static int dummy_connector_get_modes(struct drm_connector *connector) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv = + connector_to_priv(connector); + const struct drm_edid *edid; + unsigned int num_modes; + + edid = drm_edid_alloc(priv->current_edid, priv->current_edid_len); + if (!edid) + return -EINVAL; + + drm_edid_connector_update(connector, edid); + num_modes = drm_edid_connector_add_modes(connector); + + drm_edid_free(edid); + + return num_modes; +} + +static const struct drm_connector_helper_funcs dummy_connector_helper_funcs = { + .atomic_check = drm_atomic_helper_connector_hdmi_check, + .get_modes = dummy_connector_get_modes, +}; + +static void dummy_hdmi_connector_reset(struct drm_connector *connector) +{ + drm_atomic_helper_connector_reset(connector); + __drm_atomic_helper_connector_hdmi_reset(connector, connector->state); +} + +static const struct drm_connector_funcs dummy_connector_funcs = { + .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, + .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, + .fill_modes = drm_helper_probe_single_connector_modes, + .reset = dummy_hdmi_connector_reset, +}; + +static +struct drm_atomic_helper_connector_hdmi_priv * +drm_atomic_helper_connector_hdmi_init(struct kunit *test, + unsigned int max_bpc) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_connector *conn; + struct drm_encoder *enc; + struct drm_device *drm; + struct device *dev; + int ret; + + dev = drm_kunit_helper_alloc_device(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); + + priv = drm_kunit_helper_alloc_drm_device(test, dev, + struct drm_atomic_helper_connector_hdmi_priv, drm, + DRIVER_MODESET | DRIVER_ATOMIC); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv); + test->priv = priv; + + drm = &priv->drm; + priv->plane = drm_kunit_helper_create_primary_plane(test, drm, + NULL, + NULL, + NULL, 0, + NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv->plane); + + priv->crtc = drm_kunit_helper_create_crtc(test, drm, + priv->plane, NULL, + NULL, + NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv->crtc); + + enc = &priv->encoder; + ret = drmm_encoder_init(drm, enc, NULL, DRM_MODE_ENCODER_TMDS, NULL); + KUNIT_ASSERT_EQ(test, ret, 0); + + enc->possible_crtcs = drm_crtc_mask(priv->crtc); + + conn = &priv->connector; + ret = drmm_connector_hdmi_init(drm, conn, + &dummy_connector_funcs, + DRM_MODE_CONNECTOR_HDMIA, + NULL, + max_bpc); + KUNIT_ASSERT_EQ(test, ret, 0); + + drm_connector_helper_add(conn, &dummy_connector_helper_funcs); + drm_connector_attach_encoder(conn, enc); + + drm_mode_config_reset(drm); + + ret = set_connector_edid(test, conn, + test_edid_hdmi_1080p_rgb_max_200mhz, + ARRAY_SIZE(test_edid_hdmi_1080p_rgb_max_200mhz)); + KUNIT_ASSERT_EQ(test, ret, 0); + + return priv; +} + +/* + * Test that if we change the maximum bpc property to a different value, + * we trigger a mode change on the connector's CRTC, which will in turn + * disable/enable the connector. + */ +static void drm_test_check_output_bpc_crtc_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 *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_atomic_helper_connector_hdmi_init(test, 10); + KUNIT_ASSERT_NOT_NULL(test, priv); + + ctx = drm_kunit_helper_acquire_ctx_alloc(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); + + conn = &priv->connector; + 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_conn_state->hdmi.output_bpc = 8; + + KUNIT_ASSERT_NE(test, + old_conn_state->hdmi.output_bpc, + new_conn_state->hdmi.output_bpc); + + ret = drm_atomic_check_only(state); + KUNIT_ASSERT_EQ(test, ret, 0); + + old_conn_state = drm_atomic_get_old_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, old_conn_state); + + new_conn_state = drm_atomic_get_new_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, new_conn_state); + + KUNIT_ASSERT_NE(test, + old_conn_state->hdmi.output_bpc, + new_conn_state->hdmi.output_bpc); + + crtc_state = drm_atomic_get_new_crtc_state(state, crtc); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc_state); + KUNIT_EXPECT_TRUE(test, crtc_state->mode_changed); +} + +/* + * Test that if we set the output bpc property to the same value, we + * don't trigger a mode change on the connector's CRTC and leave the + * connector unaffected. + */ +static void drm_test_check_output_bpc_crtc_mode_not_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 *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_atomic_helper_connector_hdmi_init(test, 10); + KUNIT_ASSERT_NOT_NULL(test, priv); + + ctx = drm_kunit_helper_acquire_ctx_alloc(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); + + conn = &priv->connector; + 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); + + KUNIT_ASSERT_EQ(test, + new_conn_state->hdmi.output_bpc, + old_conn_state->hdmi.output_bpc); + + ret = drm_atomic_check_only(state); + KUNIT_ASSERT_EQ(test, ret, 0); + + old_conn_state = drm_atomic_get_old_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, old_conn_state); + + new_conn_state = drm_atomic_get_new_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, new_conn_state); + + KUNIT_EXPECT_EQ(test, + old_conn_state->hdmi.output_bpc, + new_conn_state->hdmi.output_bpc); + + crtc_state = drm_atomic_get_new_crtc_state(state, crtc); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc_state); + KUNIT_EXPECT_FALSE(test, crtc_state->mode_changed); +} + +static struct kunit_case drm_atomic_helper_connector_hdmi_check_tests[] = { + KUNIT_CASE(drm_test_check_output_bpc_crtc_mode_changed), + KUNIT_CASE(drm_test_check_output_bpc_crtc_mode_not_changed), + { } +}; + +static struct kunit_suite drm_atomic_helper_connector_hdmi_check_test_suite = { + .name = "drm_atomic_helper_connector_hdmi_check", + .test_cases = drm_atomic_helper_connector_hdmi_check_tests, +}; + +/* + * Test that if the connector was initialised with a maximum bpc of 8, + * the value of the max_bpc and max_requested_bpc properties out of + * reset are also set to 8, and output_bpc is set to 0 and will be + * filled at atomic_check time. + */ +static void drm_test_check_bpc_8_value(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_connector_state *conn_state; + struct drm_connector *conn; + + priv = drm_atomic_helper_connector_hdmi_init(test, 8); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + conn_state = conn->state; + KUNIT_EXPECT_EQ(test, conn_state->max_bpc, 8); + KUNIT_EXPECT_EQ(test, conn_state->max_requested_bpc, 8); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 0); +} + +/* + * Test that if the connector was initialised with a maximum bpc of 10, + * the value of the max_bpc and max_requested_bpc properties out of + * reset are also set to 10, and output_bpc is set to 0 and will be + * filled at atomic_check time. + */ +static void drm_test_check_bpc_10_value(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_connector_state *conn_state; + struct drm_connector *conn; + + priv = drm_atomic_helper_connector_hdmi_init(test, 10); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + conn_state = conn->state; + KUNIT_EXPECT_EQ(test, conn_state->max_bpc, 10); + KUNIT_EXPECT_EQ(test, conn_state->max_requested_bpc, 10); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 0); +} + +/* + * Test that if the connector was initialised with a maximum bpc of 12, + * the value of the max_bpc and max_requested_bpc properties out of + * reset are also set to 12, and output_bpc is set to 0 and will be + * filled at atomic_check time. + */ +static void drm_test_check_bpc_12_value(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_connector_state *conn_state; + struct drm_connector *conn; + + priv = drm_atomic_helper_connector_hdmi_init(test, 12); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + conn_state = conn->state; + KUNIT_EXPECT_EQ(test, conn_state->max_bpc, 12); + KUNIT_EXPECT_EQ(test, conn_state->max_requested_bpc, 12); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 0); +} + +static struct kunit_case drm_atomic_helper_connector_hdmi_reset_tests[] = { + KUNIT_CASE(drm_test_check_bpc_8_value), + KUNIT_CASE(drm_test_check_bpc_10_value), + KUNIT_CASE(drm_test_check_bpc_12_value), + { } +}; + +static struct kunit_suite drm_atomic_helper_connector_hdmi_reset_test_suite = { + .name = "drm_atomic_helper_connector_hdmi_reset", + .test_cases = drm_atomic_helper_connector_hdmi_reset_tests, +}; + +kunit_test_suites( + &drm_atomic_helper_connector_hdmi_check_test_suite, + &drm_atomic_helper_connector_hdmi_reset_test_suite, +); + +MODULE_AUTHOR("Maxime Ripard "); +MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/tests/drm_kunit_edid.h b/drivers/gpu/drm/tests/drm_kunit_edid.h new file mode 100644 index 000000000000..0366dd29c820 --- /dev/null +++ b/drivers/gpu/drm/tests/drm_kunit_edid.h @@ -0,0 +1,106 @@ +#ifndef DRM_KUNIT_EDID_H_ +#define DRM_KUNIT_EDID_H_ + +/* + * edid-decode (hex): + * + * 00 ff ff ff ff ff ff 00 31 d8 2a 00 00 00 00 00 + * 00 21 01 03 81 a0 5a 78 02 00 00 00 00 00 00 00 + * 00 00 00 20 00 00 01 01 01 01 01 01 01 01 01 01 + * 01 01 01 01 01 01 02 3a 80 18 71 38 2d 40 58 2c + * 45 00 40 84 63 00 00 1e 00 00 00 fc 00 54 65 73 + * 74 20 45 44 49 44 0a 20 20 20 00 00 00 fd 00 32 + * 46 1e 46 0f 00 0a 20 20 20 20 20 20 00 00 00 10 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 92 + * + * 02 03 1b 81 e3 05 00 20 41 10 e2 00 4a 6d 03 0c + * 00 12 34 00 28 20 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 d0 + * + * ---------------- + * + * Block 0, Base EDID: + * EDID Structure Version & Revision: 1.3 + * Vendor & Product Identification: + * Manufacturer: LNX + * Model: 42 + * Made in: 2023 + * Basic Display Parameters & Features: + * Digital display + * DFP 1.x compatible TMDS + * Maximum image size: 160 cm x 90 cm + * Gamma: 2.20 + * Monochrome or grayscale display + * First detailed timing is the preferred timing + * Color Characteristics: + * Red : 0.0000, 0.0000 + * Green: 0.0000, 0.0000 + * Blue : 0.0000, 0.0000 + * White: 0.0000, 0.0000 + * Established Timings I & II: + * DMT 0x04: 640x480 59.940476 Hz 4:3 31.469 kHz 25.175000 MHz + * Standard Timings: none + * Detailed Timing Descriptors: + * DTD 1: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz (1600 mm x 900 mm) + * Hfront 88 Hsync 44 Hback 148 Hpol P + * Vfront 4 Vsync 5 Vback 36 Vpol P + * Display Product Name: 'Test EDID' + * Display Range Limits: + * Monitor ranges (GTF): 50-70 Hz V, 30-70 kHz H, max dotclock 150 MHz + * Dummy Descriptor: + * Extension blocks: 1 + * Checksum: 0x92 + * + * ---------------- + * + * Block 1, CTA-861 Extension Block: + * Revision: 3 + * Underscans IT Video Formats by default + * Native detailed modes: 1 + * Colorimetry Data Block: + * sRGB + * Video Data Block: + * VIC 16: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz + * Video Capability Data Block: + * YCbCr quantization: No Data + * RGB quantization: Selectable (via AVI Q) + * PT scan behavior: No Data + * IT scan behavior: Always Underscanned + * CE scan behavior: Always Underscanned + * Vendor-Specific Data Block (HDMI), OUI 00-0C-03: + * Source physical address: 1.2.3.4 + * Maximum TMDS clock: 200 MHz + * Extended HDMI video details: + * Checksum: 0xd0 Unused space in Extension Block: 100 bytes + */ +static const unsigned char test_edid_hdmi_1080p_rgb_max_200mhz[] = { + 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x31, 0xd8, 0x2a, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x21, 0x01, 0x03, 0x81, 0xa0, 0x5a, 0x78, + 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, + 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x3a, 0x80, 0x18, 0x71, 0x38, + 0x2d, 0x40, 0x58, 0x2c, 0x45, 0x00, 0x40, 0x84, 0x63, 0x00, 0x00, 0x1e, + 0x00, 0x00, 0x00, 0xfc, 0x00, 0x54, 0x65, 0x73, 0x74, 0x20, 0x45, 0x44, + 0x49, 0x44, 0x0a, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x32, + 0x46, 0x00, 0x00, 0xc4, 0x00, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x41, 0x02, 0x03, 0x1b, 0x81, + 0xe3, 0x05, 0x00, 0x20, 0x41, 0x10, 0xe2, 0x00, 0x4a, 0x6d, 0x03, 0x0c, + 0x00, 0x12, 0x34, 0x00, 0x28, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0xd0 +}; + +#endif // DRM_KUNIT_EDID_H_ From patchwork Tue May 7 13:17:25 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13657047 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 C9EDEC10F1A for ; Tue, 7 May 2024 13:23:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References:Message-Id :MIME-Version:Subject:Date:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=Eiuh5MrzuThUdRxTHytPzSTPL3kiEckk8KPU3n4H5+g40o4BFU7/cVNI7V8Jz0pZM 8wD7yLQJ2gFbx+bLvY/e4uyGMA3JA+FrJuuviTkcRgH+ovVf5p7eKlc3k+VySWI5lh Qu/KaiyoQ2aOus996XnJepT2B7rrnbcfdVdmAYT49tjQEi7eGwWxCe2KoThl44PMaN 5AAVNhzZEsIzklEj9Fr8+dA1XTgFXOZKhf7GFr801mRhVB4HQDRZ6hxV2FSENJPv21 6rEWd8TVdfGTbvI8vjE6MmU/g5d83pvMT+RDRavj+wFb8kyUkdTPLPZGj/XZuGuuUT qJoC5B5YG4MWA== From: Maxime Ripard Date: Tue, 07 May 2024 15:17:25 +0200 Subject: [PATCH v13 07/28] drm/connector: hdmi: Add support for output format MIME-Version: 1.0 Message-Id: <20240507-kms-hdmi-connector-state-v13-7-8fafc5efe8be@kernel.org> References: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> In-Reply-To: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Andy Yan Cc: Hans Verkuil , Sebastian Wick , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, Maxime Ripard , Dave Stevenson X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=15123; i=mripard@kernel.org; h=from:subject:message-id; bh=slYHPU0ZPNRV78/6XfS1LOyQ9o28NoS8FZYsaqCM5/s=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDGlWmq98w3znxutvrLo3KfH8EbWSBRzZp2q6pU1ED8nG7 eq7NDeiYyoLgzAng6yYIssTmbDTy9sXVznYr/wBM4eVCWQIAxenAEyEs4Oxzlg3qsFo86crMdM+ P+ZtPTRVe9kqoXDeU42FyjGhP+ea7f13/EhM8CWOpqMM0+1nKhifZmzoN5vwbtJmr9eshx7rzoz ccJe1NPbsBTWHlW7uh5a9nVe53GDW9UCbvr7OEzcaVnwJPTMNAA== X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240507_141818_396436_B16D265F X-CRM114-Status: GOOD ( 19.10 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Just like BPC, we'll add support for automatic selection of the output format for HDMI connectors. Let's add the needed defaults and fields for now. Reviewed-by: Dave Stevenson Signed-off-by: Maxime Ripard --- drivers/gpu/drm/display/drm_hdmi_state_helper.c | 3 ++- drivers/gpu/drm/drm_atomic.c | 2 ++ drivers/gpu/drm/drm_connector.c | 31 ++++++++++++++++++++++ drivers/gpu/drm/tests/drm_connector_test.c | 9 +++++++ drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c | 22 +++++++++++---- include/drm/drm_connector.h | 20 ++++++++++++++ 6 files changed, 81 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/display/drm_hdmi_state_helper.c b/drivers/gpu/drm/display/drm_hdmi_state_helper.c index 82293d93b5f8..f6cd0612ea2c 100644 --- a/drivers/gpu/drm/display/drm_hdmi_state_helper.c +++ b/drivers/gpu/drm/display/drm_hdmi_state_helper.c @@ -43,11 +43,12 @@ int drm_atomic_helper_connector_hdmi_check(struct drm_connector *connector, struct drm_connector_state *old_conn_state = drm_atomic_get_old_connector_state(state, connector); struct drm_connector_state *new_conn_state = drm_atomic_get_new_connector_state(state, connector); - if (old_conn_state->hdmi.output_bpc != new_conn_state->hdmi.output_bpc) { + if (old_conn_state->hdmi.output_bpc != new_conn_state->hdmi.output_bpc || + old_conn_state->hdmi.output_format != new_conn_state->hdmi.output_format) { struct drm_crtc *crtc = new_conn_state->crtc; struct drm_crtc_state *crtc_state; crtc_state = drm_atomic_get_crtc_state(state, crtc); if (IS_ERR(crtc_state)) diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index 4e11cfb4518b..8730137baa86 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -1144,10 +1144,12 @@ static void drm_atomic_connector_print_state(struct drm_printer *p, drm_printf(p, "\tcolorspace=%s\n", drm_get_colorspace_name(state->colorspace)); if (connector->connector_type == DRM_MODE_CONNECTOR_HDMIA || connector->connector_type == DRM_MODE_CONNECTOR_HDMIB) { drm_printf(p, "\toutput_bpc=%u\n", state->hdmi.output_bpc); + drm_printf(p, "\toutput_format=%s\n", + drm_hdmi_connector_get_output_format_name(state->hdmi.output_format)); } if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK) if (state->writeback_job && state->writeback_job->fb) drm_printf(p, "\tfb=%d\n", state->writeback_job->fb->base.id); diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index da51a2bcb978..b629c8e990f4 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -457,10 +457,11 @@ EXPORT_SYMBOL(drmm_connector_init); * @dev: DRM device * @connector: A pointer to the HDMI connector to init * @funcs: callbacks for this connector * @connector_type: user visible type of the connector * @ddc: optional pointer to the associated ddc adapter + * @supported_formats: Bitmask of @hdmi_colorspace listing supported output formats * @max_bpc: Maximum bits per char the HDMI connector supports * * Initialises a preallocated HDMI connector. Connectors can be * subclassed as part of driver connector objects. * @@ -475,25 +476,31 @@ EXPORT_SYMBOL(drmm_connector_init); int drmm_connector_hdmi_init(struct drm_device *dev, struct drm_connector *connector, const struct drm_connector_funcs *funcs, int connector_type, struct i2c_adapter *ddc, + unsigned long supported_formats, unsigned int max_bpc) { int ret; if (!(connector_type == DRM_MODE_CONNECTOR_HDMIA || connector_type == DRM_MODE_CONNECTOR_HDMIB)) return -EINVAL; + if (!supported_formats || !(supported_formats & BIT(HDMI_COLORSPACE_RGB))) + return -EINVAL; + if (!(max_bpc == 8 || max_bpc == 10 || max_bpc == 12)) return -EINVAL; ret = drmm_connector_init(dev, connector, funcs, connector_type, ddc); if (ret) return ret; + connector->hdmi.supported_formats = supported_formats; + /* * drm_connector_attach_max_bpc_property() requires the * connector to have a state. */ if (connector->funcs->reset) @@ -1199,10 +1206,34 @@ static const u32 dp_colorspaces = BIT(DRM_MODE_COLORIMETRY_SYCC_601) | BIT(DRM_MODE_COLORIMETRY_OPYCC_601) | BIT(DRM_MODE_COLORIMETRY_BT2020_CYCC) | BIT(DRM_MODE_COLORIMETRY_BT2020_YCC); +static const char * const output_format_str[] = { + [HDMI_COLORSPACE_RGB] = "RGB", + [HDMI_COLORSPACE_YUV420] = "YUV 4:2:0", + [HDMI_COLORSPACE_YUV422] = "YUV 4:2:2", + [HDMI_COLORSPACE_YUV444] = "YUV 4:4:4", +}; + +/* + * drm_hdmi_connector_get_output_format_name() - Return a string for HDMI connector output format + * @fmt: Output format to compute name of + * + * Returns: the name of the output format, or NULL if the type is not + * valid. + */ +const char * +drm_hdmi_connector_get_output_format_name(enum hdmi_colorspace fmt) +{ + if (fmt >= ARRAY_SIZE(output_format_str)) + return NULL; + + return output_format_str[fmt]; +} +EXPORT_SYMBOL(drm_hdmi_connector_get_output_format_name); + /** * DOC: standard connector properties * * DRM connectors have a few standardized properties: * diff --git a/drivers/gpu/drm/tests/drm_connector_test.c b/drivers/gpu/drm/tests/drm_connector_test.c index 2519b91de95e..9589867bdf7c 100644 --- a/drivers/gpu/drm/tests/drm_connector_test.c +++ b/drivers/gpu/drm/tests/drm_connector_test.c @@ -185,10 +185,11 @@ static void drm_test_connector_hdmi_init_valid(struct kunit *test) ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, &dummy_funcs, DRM_MODE_CONNECTOR_HDMIA, &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), 8); KUNIT_EXPECT_EQ(test, ret, 0); } /* @@ -202,10 +203,11 @@ static void drm_test_connector_hdmi_init_null_ddc(struct kunit *test) ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, &dummy_funcs, DRM_MODE_CONNECTOR_HDMIA, NULL, + BIT(HDMI_COLORSPACE_RGB), 8); KUNIT_EXPECT_EQ(test, ret, 0); } /* @@ -219,10 +221,11 @@ static void drm_test_connector_hdmi_init_bpc_invalid(struct kunit *test) ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, &dummy_funcs, DRM_MODE_CONNECTOR_HDMIA, &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), 9); KUNIT_EXPECT_LT(test, ret, 0); } /* @@ -236,10 +239,11 @@ static void drm_test_connector_hdmi_init_bpc_null(struct kunit *test) ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, &dummy_funcs, DRM_MODE_CONNECTOR_HDMIA, &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), 0); KUNIT_EXPECT_LT(test, ret, 0); } /* @@ -257,10 +261,11 @@ static void drm_test_connector_hdmi_init_bpc_8(struct kunit *test) ret = drmm_connector_hdmi_init(&priv->drm, connector, &dummy_funcs, DRM_MODE_CONNECTOR_HDMIA, &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), 8); KUNIT_EXPECT_EQ(test, ret, 0); prop = connector->max_bpc_property; KUNIT_ASSERT_NOT_NULL(test, prop); @@ -290,10 +295,11 @@ static void drm_test_connector_hdmi_init_bpc_10(struct kunit *test) ret = drmm_connector_hdmi_init(&priv->drm, connector, &dummy_funcs, DRM_MODE_CONNECTOR_HDMIA, &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), 10); KUNIT_EXPECT_EQ(test, ret, 0); prop = connector->max_bpc_property; KUNIT_ASSERT_NOT_NULL(test, prop); @@ -323,10 +329,11 @@ static void drm_test_connector_hdmi_init_bpc_12(struct kunit *test) ret = drmm_connector_hdmi_init(&priv->drm, connector, &dummy_funcs, DRM_MODE_CONNECTOR_HDMIA, &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), 12); KUNIT_EXPECT_EQ(test, ret, 0); prop = connector->max_bpc_property; KUNIT_ASSERT_NOT_NULL(test, prop); @@ -353,10 +360,11 @@ static void drm_test_connector_hdmi_init_type_valid(struct kunit *test) ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, &dummy_funcs, connector_type, &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), 8); KUNIT_EXPECT_EQ(test, ret, 0); } static const unsigned int drm_connector_hdmi_init_type_valid_tests[] = { @@ -385,10 +393,11 @@ static void drm_test_connector_hdmi_init_type_invalid(struct kunit *test) ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, &dummy_funcs, connector_type, &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), 8); KUNIT_EXPECT_LT(test, ret, 0); } static const unsigned int drm_connector_hdmi_init_type_invalid_tests[] = { 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 3ecae50ef47f..333c81b8cf4f 100644 --- a/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c +++ b/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c @@ -147,10 +147,11 @@ static const struct drm_connector_funcs dummy_connector_funcs = { }; static struct drm_atomic_helper_connector_hdmi_priv * drm_atomic_helper_connector_hdmi_init(struct kunit *test, + unsigned int formats, unsigned int max_bpc) { struct drm_atomic_helper_connector_hdmi_priv *priv; struct drm_connector *conn; struct drm_encoder *enc; @@ -190,10 +191,11 @@ drm_atomic_helper_connector_hdmi_init(struct kunit *test, conn = &priv->connector; ret = drmm_connector_hdmi_init(drm, conn, &dummy_connector_funcs, DRM_MODE_CONNECTOR_HDMIA, NULL, + formats, max_bpc); KUNIT_ASSERT_EQ(test, ret, 0); drm_connector_helper_add(conn, &dummy_connector_helper_funcs); drm_connector_attach_encoder(conn, enc); @@ -225,11 +227,13 @@ static void drm_test_check_output_bpc_crtc_mode_changed(struct kunit *test) struct drm_connector *conn; struct drm_device *drm; struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test, 10); + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 10); KUNIT_ASSERT_NOT_NULL(test, priv); ctx = drm_kunit_helper_acquire_ctx_alloc(test); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); @@ -292,11 +296,13 @@ static void drm_test_check_output_bpc_crtc_mode_not_changed(struct kunit *test) struct drm_connector *conn; struct drm_device *drm; struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test, 10); + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 10); KUNIT_ASSERT_NOT_NULL(test, priv); ctx = drm_kunit_helper_acquire_ctx_alloc(test); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); @@ -361,11 +367,13 @@ static void drm_test_check_bpc_8_value(struct kunit *test) { struct drm_atomic_helper_connector_hdmi_priv *priv; struct drm_connector_state *conn_state; struct drm_connector *conn; - priv = drm_atomic_helper_connector_hdmi_init(test, 8); + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; conn_state = conn->state; KUNIT_EXPECT_EQ(test, conn_state->max_bpc, 8); @@ -383,11 +391,13 @@ static void drm_test_check_bpc_10_value(struct kunit *test) { struct drm_atomic_helper_connector_hdmi_priv *priv; struct drm_connector_state *conn_state; struct drm_connector *conn; - priv = drm_atomic_helper_connector_hdmi_init(test, 10); + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 10); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; conn_state = conn->state; KUNIT_EXPECT_EQ(test, conn_state->max_bpc, 10); @@ -405,11 +415,13 @@ static void drm_test_check_bpc_12_value(struct kunit *test) { struct drm_atomic_helper_connector_hdmi_priv *priv; struct drm_connector_state *conn_state; struct drm_connector *conn; - priv = drm_atomic_helper_connector_hdmi_init(test, 12); + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 12); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; conn_state = conn->state; KUNIT_EXPECT_EQ(test, conn_state->max_bpc, 12); diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index d4d2ae15bc1e..29883e6f8e50 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -366,10 +366,13 @@ enum drm_panel_orientation { DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP, DRM_MODE_PANEL_ORIENTATION_LEFT_UP, DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, }; +const char * +drm_hdmi_connector_get_output_format_name(enum hdmi_colorspace fmt); + /** * struct drm_monitor_range_info - Panel's Monitor range in EDID for * &drm_display_info * * This struct is used to store a frequency range supported by panel @@ -1039,10 +1042,15 @@ struct drm_connector_state { struct { /** * @output_bpc: Bits per color channel to output. */ unsigned int output_bpc; + + /** + * @output_format: Pixel format to output in. + */ + enum hdmi_colorspace output_format; } hdmi; }; /** * struct drm_connector_funcs - control connectors on a given device @@ -1900,10 +1908,21 @@ struct drm_connector { */ struct llist_node free_node; /** @hdr_sink_metadata: HDR Metadata Information read from sink */ struct hdr_sink_metadata hdr_sink_metadata; + + /** + * @hdmi: HDMI-related variable and properties. + */ + struct { + /** + * @supported_formats: Bitmask of @hdmi_colorspace + * supported by the controller. + */ + unsigned long supported_formats; + } hdmi; }; #define obj_to_connector(x) container_of(x, struct drm_connector, base) int drm_connector_init(struct drm_device *dev, @@ -1923,10 +1942,11 @@ int drmm_connector_init(struct drm_device *dev, int drmm_connector_hdmi_init(struct drm_device *dev, struct drm_connector *connector, const struct drm_connector_funcs *funcs, int connector_type, struct i2c_adapter *ddc, + unsigned long supported_formats, unsigned int max_bpc); void drm_connector_attach_edid_property(struct drm_connector *connector); int drm_connector_register(struct drm_connector *connector); void drm_connector_unregister(struct drm_connector *connector); int drm_connector_attach_encoder(struct drm_connector *connector, From patchwork Tue May 7 13:17:26 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13657213 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 B5D38C25B5F for ; Tue, 7 May 2024 14:30:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References:Message-Id :MIME-Version:Subject:Date:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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Tue, 7 May 2024 13:18:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1715087887; bh=3hc6xccJubKkqL1r2eJQXdXTnAar50Miht9H8iOUArE=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=suK3KZoiRkBmfMBG8mb0LZIAfhEwppzDazRQTFhnnVKU9cLs+3xb6qgovtazhaadJ QsXY4S13TmRPjuyzyQLnxCfGPgBJygC3qKh7f+QpfRVL16bpWzleICJbmwCMCiubtU ahEYJKJZ0/3yw3J0fFURZTE13v4NYXxNWOMZV1JbldFhlPJmqSdAbyrIeLMM75iIcg v6HcdZF039al8Pwj99C8BMqbbvxwWwZLkVU6phz8yTSv26R9aueeijmSLpNdmQIFJi 3J9bFAtIS+Gb2YXvs4Cs+4Uwn2Qxahlj6CISkbFlXTp3tBYHFTPqghJUMGzq6M8fRh LMyFsewpFpDKg== From: Maxime Ripard Date: Tue, 07 May 2024 15:17:26 +0200 Subject: [PATCH v13 08/28] drm/tests: Add output formats tests MIME-Version: 1.0 Message-Id: <20240507-kms-hdmi-connector-state-v13-8-8fafc5efe8be@kernel.org> References: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> In-Reply-To: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Andy Yan Cc: Hans Verkuil , Sebastian Wick , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, Maxime Ripard , Dave Stevenson X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; 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Reviewed-by: Dave Stevenson Signed-off-by: Maxime Ripard --- drivers/gpu/drm/tests/drm_connector_test.c | 99 +++++++++++++++++++++- drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c | 32 +++++++ 2 files changed, 130 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/tests/drm_connector_test.c b/drivers/gpu/drm/tests/drm_connector_test.c index 9589867bdf7c..72f22ec951d6 100644 --- a/drivers/gpu/drm/tests/drm_connector_test.c +++ b/drivers/gpu/drm/tests/drm_connector_test.c @@ -346,10 +346,46 @@ static void drm_test_connector_hdmi_init_bpc_12(struct kunit *test) prop = priv->drm.mode_config.hdr_output_metadata_property; KUNIT_ASSERT_NOT_NULL(test, prop); KUNIT_EXPECT_NOT_NULL(test, drm_mode_obj_find_prop_id(&connector->base, prop->base.id)); } +/* + * Test that the registration of an HDMI connector with no supported + * format fails. + */ +static void drm_test_connector_hdmi_init_formats_empty(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + &dummy_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + 0, + 8); + KUNIT_EXPECT_LT(test, ret, 0); +} + +/* + * Test that the registration of an HDMI connector not listing RGB as a + * supported format fails. + */ +static void drm_test_connector_hdmi_init_formats_no_rgb(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + &dummy_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_YUV422), + 8); + KUNIT_EXPECT_LT(test, ret, 0); +} + /* * Test that the registration of an HDMI connector with an HDMI * connector type succeeds. */ static void drm_test_connector_hdmi_init_type_valid(struct kunit *test) @@ -431,10 +467,12 @@ static struct kunit_case drmm_connector_hdmi_init_tests[] = { KUNIT_CASE(drm_test_connector_hdmi_init_bpc_8), KUNIT_CASE(drm_test_connector_hdmi_init_bpc_10), KUNIT_CASE(drm_test_connector_hdmi_init_bpc_12), KUNIT_CASE(drm_test_connector_hdmi_init_bpc_invalid), KUNIT_CASE(drm_test_connector_hdmi_init_bpc_null), + KUNIT_CASE(drm_test_connector_hdmi_init_formats_empty), + KUNIT_CASE(drm_test_connector_hdmi_init_formats_no_rgb), KUNIT_CASE(drm_test_connector_hdmi_init_null_ddc), KUNIT_CASE_PARAM(drm_test_connector_hdmi_init_type_valid, drm_connector_hdmi_init_type_valid_gen_params), KUNIT_CASE_PARAM(drm_test_connector_hdmi_init_type_invalid, drm_connector_hdmi_init_type_invalid_gen_params), @@ -508,13 +546,72 @@ static struct kunit_case drm_get_tv_mode_from_name_tests[] = { static struct kunit_suite drm_get_tv_mode_from_name_test_suite = { .name = "drm_get_tv_mode_from_name", .test_cases = drm_get_tv_mode_from_name_tests, }; +struct drm_hdmi_connector_get_output_format_name_test { + unsigned int kind; + const char *expected_name; +}; + +#define OUTPUT_FORMAT_TEST(_kind, _name) \ + { \ + .kind = _kind, \ + .expected_name = _name, \ + } + +static void drm_test_drm_hdmi_connector_get_output_format_name(struct kunit *test) +{ + const struct drm_hdmi_connector_get_output_format_name_test *params = + test->param_value; + + KUNIT_EXPECT_STREQ(test, + drm_hdmi_connector_get_output_format_name(params->kind), + params->expected_name); +} + +static const +struct drm_hdmi_connector_get_output_format_name_test +drm_hdmi_connector_get_output_format_name_valid_tests[] = { + OUTPUT_FORMAT_TEST(HDMI_COLORSPACE_RGB, "RGB"), + OUTPUT_FORMAT_TEST(HDMI_COLORSPACE_YUV420, "YUV 4:2:0"), + OUTPUT_FORMAT_TEST(HDMI_COLORSPACE_YUV422, "YUV 4:2:2"), + OUTPUT_FORMAT_TEST(HDMI_COLORSPACE_YUV444, "YUV 4:4:4"), +}; + +static void +drm_hdmi_connector_get_output_format_name_valid_desc(const struct drm_hdmi_connector_get_output_format_name_test *t, + char *desc) +{ + sprintf(desc, "%s", t->expected_name); +} + +KUNIT_ARRAY_PARAM(drm_hdmi_connector_get_output_format_name_valid, + drm_hdmi_connector_get_output_format_name_valid_tests, + drm_hdmi_connector_get_output_format_name_valid_desc); + +static void drm_test_drm_hdmi_connector_get_output_format_name_invalid(struct kunit *test) +{ + KUNIT_EXPECT_NULL(test, drm_hdmi_connector_get_output_format_name(4)); +}; + +static struct kunit_case drm_hdmi_connector_get_output_format_name_tests[] = { + KUNIT_CASE_PARAM(drm_test_drm_hdmi_connector_get_output_format_name, + drm_hdmi_connector_get_output_format_name_valid_gen_params), + KUNIT_CASE(drm_test_drm_hdmi_connector_get_output_format_name_invalid), + { } +}; + +static struct kunit_suite drm_hdmi_connector_get_output_format_name_test_suite = { + .name = "drm_hdmi_connector_get_output_format_name", + .test_cases = drm_hdmi_connector_get_output_format_name_tests, +}; + kunit_test_suites( &drmm_connector_hdmi_init_test_suite, &drmm_connector_init_test_suite, - &drm_get_tv_mode_from_name_test_suite + &drm_get_tv_mode_from_name_test_suite, + &drm_hdmi_connector_get_output_format_name_test_suite ); MODULE_AUTHOR("Maxime Ripard "); MODULE_LICENSE("GPL"); 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 333c81b8cf4f..8bc1f9b0b12b 100644 --- a/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c +++ b/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c @@ -347,10 +347,19 @@ static void drm_test_check_output_bpc_crtc_mode_not_changed(struct kunit *test) } static struct kunit_case drm_atomic_helper_connector_hdmi_check_tests[] = { KUNIT_CASE(drm_test_check_output_bpc_crtc_mode_changed), KUNIT_CASE(drm_test_check_output_bpc_crtc_mode_not_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 + * RGB Quantization and BPC. + * + * However, we don't have any way to control which format gets + * picked up aside from changing the BPC or mode which would + * already trigger a mode change. + */ { } }; static struct kunit_suite drm_atomic_helper_connector_hdmi_check_test_suite = { .name = "drm_atomic_helper_connector_hdmi_check", @@ -427,14 +436,37 @@ static void drm_test_check_bpc_12_value(struct kunit *test) KUNIT_EXPECT_EQ(test, conn_state->max_bpc, 12); KUNIT_EXPECT_EQ(test, conn_state->max_requested_bpc, 12); KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 0); } +/* + * Test that the value of the output format property out of reset is set + * to RGB, even if the driver supports more than that. + */ +static void drm_test_check_format_value(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_connector_state *conn_state; + struct drm_connector *conn; + + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV422) | + BIT(HDMI_COLORSPACE_YUV444), + 8); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + conn_state = conn->state; + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); +} + static struct kunit_case drm_atomic_helper_connector_hdmi_reset_tests[] = { KUNIT_CASE(drm_test_check_bpc_8_value), KUNIT_CASE(drm_test_check_bpc_10_value), KUNIT_CASE(drm_test_check_bpc_12_value), + KUNIT_CASE(drm_test_check_format_value), { } }; static struct kunit_suite drm_atomic_helper_connector_hdmi_reset_test_suite = { .name = "drm_atomic_helper_connector_hdmi_reset", From patchwork Tue May 7 13:17:27 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13657221 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 5B593C10F1A for ; Tue, 7 May 2024 14:31:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References:Message-Id :MIME-Version:Subject:Date:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=QyzrAp+jGv8reICxRHF5XmxuuEo4fE1L1/C1pmJgdC/KRbPTTqZZFXMaItU/HbCo5 e95wvIyhinbV5oiCYaWXOLDBvw6Z8KeXWy0uUGOucNrASf5G02EP2fbNKnHWPPWgxF cFQnD18kMr4epHK3qg6FlbidWb6Buj4J5MHfVeEcr29jS/l3H6fd63QaNwLb+4I8Be dEdzJkDCz2AxsPBzqqK0iyp9eP+TMfBJMh5U1QpelGydFRlCXyjsNkw5eIjzVDygip TpNzgdfV/kaDGFbdeGJG70/c+518CgyR7EGufHbuXakrQa28JOPPGx7lYdJB/nN2gF L2cMpXF9LILhw== From: Maxime Ripard Date: Tue, 07 May 2024 15:17:27 +0200 Subject: [PATCH v13 09/28] drm/display: hdmi: Add HDMI compute clock helper MIME-Version: 1.0 Message-Id: <20240507-kms-hdmi-connector-state-v13-9-8fafc5efe8be@kernel.org> References: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> In-Reply-To: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Andy Yan Cc: Hans Verkuil , Sebastian Wick , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, Maxime Ripard , Dave Stevenson X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; 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Let's create a helper to provide that rate taking all parameters into account. Reviewed-by: Dave Stevenson Signed-off-by: Maxime Ripard --- drivers/gpu/drm/display/drm_hdmi_helper.c | 57 +++++++++++++++++++++++++++++++ include/drm/display/drm_hdmi_helper.h | 4 +++ 2 files changed, 61 insertions(+) diff --git a/drivers/gpu/drm/display/drm_hdmi_helper.c b/drivers/gpu/drm/display/drm_hdmi_helper.c index faf5e9efa7d3..679eb3e81393 100644 --- a/drivers/gpu/drm/display/drm_hdmi_helper.c +++ b/drivers/gpu/drm/display/drm_hdmi_helper.c @@ -193,5 +193,62 @@ void drm_hdmi_avi_infoframe_content_type(struct hdmi_avi_infoframe *frame, } frame->itc = conn_state->content_type != DRM_MODE_CONTENT_TYPE_NO_DATA; } EXPORT_SYMBOL(drm_hdmi_avi_infoframe_content_type); + +/** + * drm_hdmi_compute_mode_clock() - Computes the TMDS Character Rate + * @mode: Display mode to compute the clock for + * @bpc: Bits per character + * @fmt: Output Pixel Format used + * + * Returns the TMDS Character Rate for a given mode, bpc count and output format. + * + * RETURNS: + * The TMDS Character Rate, in Hertz, or 0 on error. + */ +unsigned long long +drm_hdmi_compute_mode_clock(const struct drm_display_mode *mode, + unsigned int bpc, enum hdmi_colorspace fmt) +{ + unsigned long long clock = mode->clock * 1000ULL; + unsigned int vic = drm_match_cea_mode(mode); + + /* + * CTA-861-G Spec, section 5.4 - Color Coding and Quantization + * mandates that VIC 1 always uses 8 bpc. + */ + if (vic == 1 && bpc != 8) + return 0; + + if (fmt == HDMI_COLORSPACE_YUV422) { + /* + * HDMI 1.4b Spec, section 6.2.3 - Pixel Encoding Requirements + * specifies that YUV422 is 36-bit only. + */ + if (bpc != 12) + return 0; + + /* + * HDMI 1.0 Spec, section 6.5 - Pixel Encoding + * specifies that YUV422 requires two 12-bits components per + * pixel clock, which is equivalent in our calculation to three + * 8-bits components + */ + bpc = 8; + } + + /* + * HDMI 2.0 Spec, Section 7.1 - YCbCr 4:2:0 Pixel Encoding + * specifies that YUV420 encoding is carried at a TMDS Character Rate + * equal to half the pixel clock rate. + */ + if (fmt == HDMI_COLORSPACE_YUV420) + clock = clock / 2; + + if (mode->flags & DRM_MODE_FLAG_DBLCLK) + clock = clock * 2; + + return DIV_ROUND_CLOSEST_ULL(clock * bpc, 8); +} +EXPORT_SYMBOL(drm_hdmi_compute_mode_clock); diff --git a/include/drm/display/drm_hdmi_helper.h b/include/drm/display/drm_hdmi_helper.h index 76d234826e22..57e3b18c15ec 100644 --- a/include/drm/display/drm_hdmi_helper.h +++ b/include/drm/display/drm_hdmi_helper.h @@ -22,6 +22,10 @@ drm_hdmi_infoframe_set_hdr_metadata(struct hdmi_drm_infoframe *frame, const struct drm_connector_state *conn_state); void drm_hdmi_avi_infoframe_content_type(struct hdmi_avi_infoframe *frame, const struct drm_connector_state *conn_state); +unsigned long long +drm_hdmi_compute_mode_clock(const struct drm_display_mode *mode, + unsigned int bpc, enum hdmi_colorspace fmt); + #endif From patchwork Tue May 7 13:17:28 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13657026 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 5AD76C10F1A for ; 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a=openpgp-sha256; l=11939; i=mripard@kernel.org; h=from:subject:message-id; bh=JRINILWiC5p90IRbD/BxY7cNI8xdzxL5sNRwNsYWVcU=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDGlWmq9luY62Hoy/dn/NdXnN+RcfvTq+r37ypMXGsrETO 3aW7mL61jGVhUGYk0FWTJHliUzY6eXti6sc7Ff+gJnDygQyhIGLUwAmYjiBsT5zwcnZVRns6VKv t3nzsCw5YWWQf+7DlgpR/kfNvMEqfCXR82XtAy/p7MrZqW3XOtc2hLGhK1ZKbtFPuQlRK42eP7k 23WLRdQ6h56Vdaw4rr9rz+QDvZhGzbwsYpz5jPxqbwLsw618cAA== X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240507_061814_081748_43DF4D21 X-CRM114-Status: GOOD ( 15.40 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The previous patch added an helper to compute the TMDS character rate on an HDMI connector. Let's add a few tests to make sure it works as expected. Reviewed-by: Dave Stevenson Signed-off-by: Maxime Ripard --- drivers/gpu/drm/tests/drm_connector_test.c | 296 +++++++++++++++++++++++++++++ 1 file changed, 296 insertions(+) diff --git a/drivers/gpu/drm/tests/drm_connector_test.c b/drivers/gpu/drm/tests/drm_connector_test.c index 72f22ec951d6..426d974d8d74 100644 --- a/drivers/gpu/drm/tests/drm_connector_test.c +++ b/drivers/gpu/drm/tests/drm_connector_test.c @@ -6,11 +6,15 @@ #include #include #include #include +#include #include +#include + +#include #include #include "../drm_crtc_internal.h" @@ -604,14 +608,306 @@ static struct kunit_case drm_hdmi_connector_get_output_format_name_tests[] = { static struct kunit_suite drm_hdmi_connector_get_output_format_name_test_suite = { .name = "drm_hdmi_connector_get_output_format_name", .test_cases = drm_hdmi_connector_get_output_format_name_tests, }; +/* + * Test that for a given mode, with 8bpc and an RGB output the TMDS + * character rate is equal to the mode pixel clock. + */ +static void drm_test_drm_hdmi_compute_mode_clock_rgb(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const struct drm_display_mode *mode; + unsigned long long rate; + struct drm_device *drm = &priv->drm; + + mode = drm_display_mode_from_cea_vic(drm, 16); + KUNIT_ASSERT_NOT_NULL(test, mode); + + KUNIT_ASSERT_FALSE(test, mode->flags & DRM_MODE_FLAG_DBLCLK); + + rate = drm_hdmi_compute_mode_clock(mode, 8, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_GT(test, rate, 0); + KUNIT_EXPECT_EQ(test, mode->clock * 1000ULL, rate); +} + +/* + * Test that for a given mode, with 10bpc and an RGB output the TMDS + * character rate is equal to 1.25 times the mode pixel clock. + */ +static void drm_test_drm_hdmi_compute_mode_clock_rgb_10bpc(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const struct drm_display_mode *mode; + unsigned long long rate; + struct drm_device *drm = &priv->drm; + + mode = drm_display_mode_from_cea_vic(drm, 16); + KUNIT_ASSERT_NOT_NULL(test, mode); + + KUNIT_ASSERT_FALSE(test, mode->flags & DRM_MODE_FLAG_DBLCLK); + + rate = drm_hdmi_compute_mode_clock(mode, 10, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_GT(test, rate, 0); + KUNIT_EXPECT_EQ(test, mode->clock * 1250, rate); +} + +/* + * Test that for the VIC-1 mode, with 10bpc and an RGB output the TMDS + * character rate computation fails. + */ +static void drm_test_drm_hdmi_compute_mode_clock_rgb_10bpc_vic_1(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const struct drm_display_mode *mode; + unsigned long long rate; + struct drm_device *drm = &priv->drm; + + mode = drm_display_mode_from_cea_vic(drm, 1); + KUNIT_ASSERT_NOT_NULL(test, mode); + + rate = drm_hdmi_compute_mode_clock(mode, 10, HDMI_COLORSPACE_RGB); + KUNIT_EXPECT_EQ(test, rate, 0); +} + +/* + * Test that for a given mode, with 12bpc and an RGB output the TMDS + * character rate is equal to 1.5 times the mode pixel clock. + */ +static void drm_test_drm_hdmi_compute_mode_clock_rgb_12bpc(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const struct drm_display_mode *mode; + unsigned long long rate; + struct drm_device *drm = &priv->drm; + + mode = drm_display_mode_from_cea_vic(drm, 16); + KUNIT_ASSERT_NOT_NULL(test, mode); + + KUNIT_ASSERT_FALSE(test, mode->flags & DRM_MODE_FLAG_DBLCLK); + + rate = drm_hdmi_compute_mode_clock(mode, 12, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_GT(test, rate, 0); + KUNIT_EXPECT_EQ(test, mode->clock * 1500, rate); +} + +/* + * Test that for the VIC-1 mode, with 12bpc and an RGB output the TMDS + * character rate computation fails. + */ +static void drm_test_drm_hdmi_compute_mode_clock_rgb_12bpc_vic_1(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const struct drm_display_mode *mode; + unsigned long long rate; + struct drm_device *drm = &priv->drm; + + mode = drm_display_mode_from_cea_vic(drm, 1); + KUNIT_ASSERT_NOT_NULL(test, mode); + + rate = drm_hdmi_compute_mode_clock(mode, 12, HDMI_COLORSPACE_RGB); + KUNIT_EXPECT_EQ(test, rate, 0); +} + +/* + * Test that for a mode with the pixel repetition flag, the TMDS + * character rate is indeed double the mode pixel clock. + */ +static void drm_test_drm_hdmi_compute_mode_clock_rgb_double(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const struct drm_display_mode *mode; + unsigned long long rate; + struct drm_device *drm = &priv->drm; + + mode = drm_display_mode_from_cea_vic(drm, 6); + KUNIT_ASSERT_NOT_NULL(test, mode); + + KUNIT_ASSERT_TRUE(test, mode->flags & DRM_MODE_FLAG_DBLCLK); + + rate = drm_hdmi_compute_mode_clock(mode, 8, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_GT(test, rate, 0); + KUNIT_EXPECT_EQ(test, (mode->clock * 1000ULL) * 2, rate); +} + +/* + * Test that the TMDS character rate computation for the VIC modes + * explicitly listed in the spec as supporting YUV420 succeed and return + * half the mode pixel clock. + */ +static void drm_test_connector_hdmi_compute_mode_clock_yuv420_valid(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const struct drm_display_mode *mode; + struct drm_device *drm = &priv->drm; + unsigned long long rate; + unsigned int vic = *(unsigned int *)test->param_value; + + mode = drm_display_mode_from_cea_vic(drm, vic); + KUNIT_ASSERT_NOT_NULL(test, mode); + + KUNIT_ASSERT_FALSE(test, mode->flags & DRM_MODE_FLAG_DBLCLK); + + rate = drm_hdmi_compute_mode_clock(mode, 8, HDMI_COLORSPACE_YUV420); + KUNIT_ASSERT_GT(test, rate, 0); + KUNIT_EXPECT_EQ(test, (mode->clock * 1000ULL) / 2, rate); +} + +static const unsigned int drm_hdmi_compute_mode_clock_yuv420_vic_valid_tests[] = { + 96, 97, 101, 102, 106, 107, +}; + +static void drm_hdmi_compute_mode_clock_yuv420_vic_desc(const unsigned int *vic, char *desc) +{ + sprintf(desc, "VIC %u", *vic); +} + +KUNIT_ARRAY_PARAM(drm_hdmi_compute_mode_clock_yuv420_valid, + drm_hdmi_compute_mode_clock_yuv420_vic_valid_tests, + drm_hdmi_compute_mode_clock_yuv420_vic_desc); + +/* + * Test that for a given mode listed supporting it and an YUV420 output + * with 10bpc, the TMDS character rate is equal to 0.625 times the mode + * pixel clock. + */ +static void drm_test_connector_hdmi_compute_mode_clock_yuv420_10_bpc(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const struct drm_display_mode *mode; + struct drm_device *drm = &priv->drm; + unsigned int vic = + drm_hdmi_compute_mode_clock_yuv420_vic_valid_tests[0]; + unsigned long long rate; + + mode = drm_display_mode_from_cea_vic(drm, vic); + KUNIT_ASSERT_NOT_NULL(test, mode); + + KUNIT_ASSERT_FALSE(test, mode->flags & DRM_MODE_FLAG_DBLCLK); + + rate = drm_hdmi_compute_mode_clock(mode, 10, HDMI_COLORSPACE_YUV420); + KUNIT_ASSERT_GT(test, rate, 0); + + KUNIT_EXPECT_EQ(test, mode->clock * 625, rate); +} + +/* + * Test that for a given mode listed supporting it and an YUV420 output + * with 12bpc, the TMDS character rate is equal to 0.75 times the mode + * pixel clock. + */ +static void drm_test_connector_hdmi_compute_mode_clock_yuv420_12_bpc(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const struct drm_display_mode *mode; + struct drm_device *drm = &priv->drm; + unsigned int vic = + drm_hdmi_compute_mode_clock_yuv420_vic_valid_tests[0]; + unsigned long long rate; + + mode = drm_display_mode_from_cea_vic(drm, vic); + KUNIT_ASSERT_NOT_NULL(test, mode); + + KUNIT_ASSERT_FALSE(test, mode->flags & DRM_MODE_FLAG_DBLCLK); + + rate = drm_hdmi_compute_mode_clock(mode, 12, HDMI_COLORSPACE_YUV420); + KUNIT_ASSERT_GT(test, rate, 0); + + KUNIT_EXPECT_EQ(test, mode->clock * 750, rate); +} + +/* + * Test that for a given mode, the computation of the TMDS character + * rate with 8bpc and a YUV422 output fails. + */ +static void drm_test_connector_hdmi_compute_mode_clock_yuv422_8_bpc(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const struct drm_display_mode *mode; + struct drm_device *drm = &priv->drm; + unsigned long long rate; + + mode = drm_display_mode_from_cea_vic(drm, 16); + KUNIT_ASSERT_NOT_NULL(test, mode); + + KUNIT_ASSERT_FALSE(test, mode->flags & DRM_MODE_FLAG_DBLCLK); + + rate = drm_hdmi_compute_mode_clock(mode, 8, HDMI_COLORSPACE_YUV422); + KUNIT_EXPECT_EQ(test, rate, 0); +} + +/* + * Test that for a given mode, the computation of the TMDS character + * rate with 10bpc and a YUV422 output fails. + */ +static void drm_test_connector_hdmi_compute_mode_clock_yuv422_10_bpc(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const struct drm_display_mode *mode; + struct drm_device *drm = &priv->drm; + unsigned long long rate; + + mode = drm_display_mode_from_cea_vic(drm, 16); + KUNIT_ASSERT_NOT_NULL(test, mode); + + KUNIT_ASSERT_FALSE(test, mode->flags & DRM_MODE_FLAG_DBLCLK); + + rate = drm_hdmi_compute_mode_clock(mode, 10, HDMI_COLORSPACE_YUV422); + KUNIT_EXPECT_EQ(test, rate, 0); +} + +/* + * Test that for a given mode, the computation of the TMDS character + * rate with 12bpc and a YUV422 output succeeds and returns a rate equal + * to the mode pixel clock. + */ +static void drm_test_connector_hdmi_compute_mode_clock_yuv422_12_bpc(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const struct drm_display_mode *mode; + struct drm_device *drm = &priv->drm; + unsigned long long rate; + + mode = drm_display_mode_from_cea_vic(drm, 16); + KUNIT_ASSERT_NOT_NULL(test, mode); + + KUNIT_ASSERT_FALSE(test, mode->flags & DRM_MODE_FLAG_DBLCLK); + + rate = drm_hdmi_compute_mode_clock(mode, 12, HDMI_COLORSPACE_YUV422); + KUNIT_ASSERT_GT(test, rate, 0); + KUNIT_EXPECT_EQ(test, mode->clock * 1000, rate); +} + +static struct kunit_case drm_hdmi_compute_mode_clock_tests[] = { + KUNIT_CASE(drm_test_drm_hdmi_compute_mode_clock_rgb), + KUNIT_CASE(drm_test_drm_hdmi_compute_mode_clock_rgb_10bpc), + KUNIT_CASE(drm_test_drm_hdmi_compute_mode_clock_rgb_10bpc_vic_1), + KUNIT_CASE(drm_test_drm_hdmi_compute_mode_clock_rgb_12bpc), + KUNIT_CASE(drm_test_drm_hdmi_compute_mode_clock_rgb_12bpc_vic_1), + KUNIT_CASE(drm_test_drm_hdmi_compute_mode_clock_rgb_double), + KUNIT_CASE_PARAM(drm_test_connector_hdmi_compute_mode_clock_yuv420_valid, + drm_hdmi_compute_mode_clock_yuv420_valid_gen_params), + KUNIT_CASE(drm_test_connector_hdmi_compute_mode_clock_yuv420_10_bpc), + KUNIT_CASE(drm_test_connector_hdmi_compute_mode_clock_yuv420_12_bpc), + KUNIT_CASE(drm_test_connector_hdmi_compute_mode_clock_yuv422_8_bpc), + KUNIT_CASE(drm_test_connector_hdmi_compute_mode_clock_yuv422_10_bpc), + KUNIT_CASE(drm_test_connector_hdmi_compute_mode_clock_yuv422_12_bpc), + { } +}; + +static struct kunit_suite drm_hdmi_compute_mode_clock_test_suite = { + .name = "drm_test_connector_hdmi_compute_mode_clock", + .init = drm_test_connector_init, + .test_cases = drm_hdmi_compute_mode_clock_tests, +}; + kunit_test_suites( &drmm_connector_hdmi_init_test_suite, &drmm_connector_init_test_suite, &drm_get_tv_mode_from_name_test_suite, + &drm_hdmi_compute_mode_clock_test_suite, &drm_hdmi_connector_get_output_format_name_test_suite ); MODULE_AUTHOR("Maxime Ripard "); MODULE_LICENSE("GPL"); From patchwork Tue May 7 13:17:29 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13657218 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 69F13C25B4F for ; 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Tue, 07 May 2024 13:18:27 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 4265761765; Tue, 7 May 2024 13:18:15 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B683DC4AF66; Tue, 7 May 2024 13:18:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1715087895; bh=6UrkHeOkLdRsP7WmUBf8nPF7wHJAC2Ss/adKlg8oLp0=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=qbIOZDBnAoSy9xT+oO1HK5207Wm/oyQqLhxc95ZTuGcpJ3Yag057pMjSm3AjugMdD rHEFqeCoSiHBXLNOJfIY3k4rSftL0DgBGbdHd2CUlRkEJ/KlXI0UvkViRMF4BpuueT +6Z0VbzD3JnylprlJXJikvAzds62jo/nkhlW961iGeDYtlmfdac9XvKlP4/Jbq6BPu PCFtkw8dyvAp54txD8AaFPLUS6h3Rs1NMACLOjUuTka9CH+DaIVpadehW6wTINMxzW 8Sx53sEchv7F3Oa76zlM/DWg3my3CQRzfhop5L6vSbd1tZLcUKuKUdU0d/wNEZ188P kGSXpdsXj75Zg== From: Maxime Ripard Date: Tue, 07 May 2024 15:17:29 +0200 Subject: [PATCH v13 11/28] drm/connector: hdmi: Calculate TMDS character rate MIME-Version: 1.0 Message-Id: <20240507-kms-hdmi-connector-state-v13-11-8fafc5efe8be@kernel.org> References: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> In-Reply-To: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Andy Yan Cc: Hans Verkuil , Sebastian Wick , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, Maxime Ripard , Dave Stevenson X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=6362; i=mripard@kernel.org; h=from:subject:message-id; bh=6UrkHeOkLdRsP7WmUBf8nPF7wHJAC2Ss/adKlg8oLp0=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDGlWmq/1y9iX5ZeznHqibqx4Ilvm+3IzY+nQu7/Yfp009 yqdad3SMZWFQZiTQVZMkeWJTNjp5e2LqxzsV/6AmcPKBDKEgYtTACYi1MbY0ClvovEmhdkpegNn 9gqF4u8zkjYL/cl26V+971rPzMkRWyN8nTdm9nefsqiPVPMVyjnC2LA+3SHo45y5acs/Li3zrZW +c/1aqLn+HJucXX9VtFqFZyeKMfzMXaZc5Sr3OkSefaGeEQA= X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240507_141826_082562_6D9FA071 X-CRM114-Status: GOOD ( 16.23 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Most HDMI drivers have some code to calculate the TMDS character rate, usually to adjust an internal clock to match what the mode requires. Since the TMDS character rates mostly depends on the resolution, whether we need to repeat pixels or not, the bpc count and the format, we can now derive it from the HDMI connector state that stores all those infos and remove the duplication from drivers. Reviewed-by: Dave Stevenson Signed-off-by: Maxime Ripard --- drivers/gpu/drm/display/drm_hdmi_state_helper.c | 67 ++++++++++++++++++++++ drivers/gpu/drm/drm_atomic.c | 1 + drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c | 3 + include/drm/drm_connector.h | 5 ++ 4 files changed, 76 insertions(+) diff --git a/drivers/gpu/drm/display/drm_hdmi_state_helper.c b/drivers/gpu/drm/display/drm_hdmi_state_helper.c index f6cd0612ea2c..08630561d864 100644 --- a/drivers/gpu/drm/display/drm_hdmi_state_helper.c +++ b/drivers/gpu/drm/display/drm_hdmi_state_helper.c @@ -1,10 +1,11 @@ // SPDX-License-Identifier: MIT #include #include +#include #include /** * __drm_atomic_helper_connector_hdmi_reset() - Initializes all HDMI @drm_connector_state resources * @connector: DRM connector @@ -23,10 +24,67 @@ void __drm_atomic_helper_connector_hdmi_reset(struct drm_connector *connector, new_conn_state->max_bpc = max_bpc; new_conn_state->max_requested_bpc = max_bpc; } EXPORT_SYMBOL(__drm_atomic_helper_connector_hdmi_reset); +static const struct drm_display_mode * +connector_state_get_mode(const struct drm_connector_state *conn_state) +{ + struct drm_atomic_state *state; + struct drm_crtc_state *crtc_state; + struct drm_crtc *crtc; + + state = conn_state->state; + if (!state) + return NULL; + + crtc = conn_state->crtc; + if (!crtc) + return NULL; + + crtc_state = drm_atomic_get_new_crtc_state(state, crtc); + if (!crtc_state) + return NULL; + + return &crtc_state->mode; +} + +static enum drm_mode_status +hdmi_clock_valid(const struct drm_connector *connector, + const struct drm_display_mode *mode, + unsigned long long clock) +{ + const struct drm_display_info *info = &connector->display_info; + + if (info->max_tmds_clock && clock > info->max_tmds_clock * 1000) + return MODE_CLOCK_HIGH; + + return MODE_OK; +} + +static int +hdmi_compute_clock(const struct drm_connector *connector, + struct drm_connector_state *conn_state, + const struct drm_display_mode *mode, + unsigned int bpc, enum hdmi_colorspace fmt) +{ + enum drm_mode_status status; + unsigned long long clock; + + clock = drm_hdmi_compute_mode_clock(mode, bpc, fmt); + if (!clock) + return -EINVAL; + + status = hdmi_clock_valid(connector, mode, clock); + if (status != MODE_OK) + return -EINVAL; + + conn_state->hdmi.tmds_char_rate = clock; + + return 0; +} + /** * drm_atomic_helper_connector_hdmi_check() - Helper to check HDMI connector atomic state * @connector: DRM Connector * @state: the DRM State object * @@ -42,10 +100,19 @@ int drm_atomic_helper_connector_hdmi_check(struct drm_connector *connector, { struct drm_connector_state *old_conn_state = drm_atomic_get_old_connector_state(state, connector); struct drm_connector_state *new_conn_state = drm_atomic_get_new_connector_state(state, connector); + const struct drm_display_mode *mode = + connector_state_get_mode(new_conn_state); + int ret; + + ret = hdmi_compute_clock(connector, new_conn_state, mode, + new_conn_state->hdmi.output_bpc, + new_conn_state->hdmi.output_format); + if (ret) + return ret; if (old_conn_state->hdmi.output_bpc != new_conn_state->hdmi.output_bpc || old_conn_state->hdmi.output_format != new_conn_state->hdmi.output_format) { struct drm_crtc *crtc = new_conn_state->crtc; struct drm_crtc_state *crtc_state; diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index 8730137baa86..26f9e525c0a0 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -1146,10 +1146,11 @@ static void drm_atomic_connector_print_state(struct drm_printer *p, if (connector->connector_type == DRM_MODE_CONNECTOR_HDMIA || connector->connector_type == DRM_MODE_CONNECTOR_HDMIB) { drm_printf(p, "\toutput_bpc=%u\n", state->hdmi.output_bpc); drm_printf(p, "\toutput_format=%s\n", drm_hdmi_connector_get_output_format_name(state->hdmi.output_format)); + drm_printf(p, "\ttmds_char_rate=%llu\n", state->hdmi.tmds_char_rate); } if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK) if (state->writeback_job && state->writeback_job->fb) drm_printf(p, "\tfb=%d\n", state->writeback_job->fb->base.id); 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 8bc1f9b0b12b..4f46a70a5017 100644 --- a/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c +++ b/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c @@ -70,10 +70,13 @@ static int light_up_connector(struct kunit *test, KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); conn_state = drm_atomic_get_connector_state(state, connector); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + conn_state->hdmi.output_bpc = connector->max_bpc; + conn_state->hdmi.output_format = HDMI_COLORSPACE_RGB; + ret = drm_atomic_set_crtc_for_connector(conn_state, crtc); KUNIT_EXPECT_EQ(test, ret, 0); crtc_state = drm_atomic_get_crtc_state(state, crtc); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc_state); diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index 29883e6f8e50..54899c030031 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -1047,10 +1047,15 @@ struct drm_connector_state { /** * @output_format: Pixel format to output in. */ enum hdmi_colorspace output_format; + + /** + * @tmds_char_rate: TMDS Character Rate, in Hz. + */ + unsigned long long tmds_char_rate; } hdmi; }; /** * struct drm_connector_funcs - control connectors on a given device From patchwork Tue May 7 13:17:30 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13657028 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 DB818C10F1A for ; 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Tue, 07 May 2024 13:19:11 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1s4Ki3-0000000B9Yl-0Q3J; Tue, 07 May 2024 13:18:30 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 00BB96177D; Tue, 7 May 2024 13:18:18 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 72763C2BBFC; Tue, 7 May 2024 13:18:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1715087897; bh=poCerUm1RZ6xl4kPgR53pATA5mmAoiEFuv1z1ts3yuA=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=ohipHK/rZZhfNgx+1aRj2lUzpIiJSEO8W80dQtz/Matn++rSTUwg0eA04YZipXxYK loCKrg4zbNUVFVaydJIK1+zcordmmxOcCqrbl7Z+mZ1JHlgrBpNV720yCZOTb+oVor gViHOJs6QeitZQId5+NI1tI8MbPIYVMmrM1RfifEHb1oAL6gntPxWR4kUdfOqoU6kd dLxuQ1CKmzR0FhpP4bE4DWQ3jBGyrhtAGxSIa1WJbCkkezBYiOuHnB0A7Q28PMDTMJ Zjfix2jhukTs2ntCRwmhIhzdMZlRBezvpT+hO4PJDecj42O05lJmv1BfCUnMpPluUw s1B6TscR/XOPQ== From: Maxime Ripard Date: Tue, 07 May 2024 15:17:30 +0200 Subject: [PATCH v13 12/28] drm/tests: Add TDMS character rate connector state tests MIME-Version: 1.0 Message-Id: <20240507-kms-hdmi-connector-state-v13-12-8fafc5efe8be@kernel.org> References: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> In-Reply-To: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Andy Yan Cc: Hans Verkuil , Sebastian Wick , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, Maxime Ripard , Dave Stevenson X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=17952; i=mripard@kernel.org; h=from:subject:message-id; bh=poCerUm1RZ6xl4kPgR53pATA5mmAoiEFuv1z1ts3yuA=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDGlWmm/K/OyNKw1EasNFv6Vpe1bara190CTksCbQZlsm4 yTpaZodU1kYhDkZZMUUWZ7IhJ1e3r64ysF+5Q+YOaxMIEMYuDgFYCKTFRjrPfom8T0Oz+3hSl1b VtjMZf/ZeLJXwtwrU72zppzliBQMmMU6P8n1aLPn6bWSG7KYH0swNpxrlBKYtyPwfq2EAKP43Qs bHtTsXmV342rC7xBWZ3HOmlc8/wtsw/qKb+tU3fuXpHF4NwA= X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240507_061819_509221_A35580B8 X-CRM114-Status: GOOD ( 16.68 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The previous patch stores in the connector state the expected TMDS character rate matching the configuration of the HDMI connector. Let's add a few tests to make sure it works as expected. Reviewed-by: Dave Stevenson Signed-off-by: Maxime Ripard --- drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c | 166 ++++++++++++++++ drivers/gpu/drm/tests/drm_kunit_edid.h | 216 +++++++++++++++++++++ 2 files changed, 382 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 4f46a70a5017..8ff53ee54e97 100644 --- a/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c +++ b/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c @@ -347,13 +347,156 @@ static void drm_test_check_output_bpc_crtc_mode_not_changed(struct kunit *test) crtc_state = drm_atomic_get_new_crtc_state(state, crtc); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc_state); KUNIT_EXPECT_FALSE(test, crtc_state->mode_changed); } +/* + * Test that when doing a commit which would use RGB 8bpc, the TMDS + * clock rate stored in the connector state is equal to the mode clock + */ +static void drm_test_check_tmds_char_rate_rgb_8bpc(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx *ctx; + struct drm_connector_state *conn_state; + struct drm_display_mode *preferred; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + ret = set_connector_edid(test, conn, + test_edid_hdmi_1080p_rgb_max_200mhz, + ARRAY_SIZE(test_edid_hdmi_1080p_rgb_max_200mhz)); + KUNIT_ASSERT_EQ(test, ret, 0); + + 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); + KUNIT_ASSERT_FALSE(test, preferred->flags & DRM_MODE_FLAG_DBLCLK); + + drm = &priv->drm; + crtc = priv->crtc; + ret = light_up_connector(test, drm, crtc, conn, preferred, ctx); + KUNIT_ASSERT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_ASSERT_EQ(test, conn_state->hdmi.output_bpc, 8); + KUNIT_ASSERT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.tmds_char_rate, preferred->clock * 1000); +} + +/* + * Test that when doing a commit which would use RGB 10bpc, the TMDS + * clock rate stored in the connector state is equal to 1.25 times the + * mode pixel clock + */ +static void drm_test_check_tmds_char_rate_rgb_10bpc(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx *ctx; + struct drm_connector_state *conn_state; + struct drm_display_mode *preferred; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 10); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + ret = set_connector_edid(test, conn, + test_edid_hdmi_1080p_rgb_yuv_dc_max_340mhz, + ARRAY_SIZE(test_edid_hdmi_1080p_rgb_yuv_dc_max_340mhz)); + KUNIT_ASSERT_EQ(test, ret, 0); + + 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); + KUNIT_ASSERT_FALSE(test, preferred->flags & DRM_MODE_FLAG_DBLCLK); + + drm = &priv->drm; + crtc = priv->crtc; + ret = light_up_connector(test, drm, crtc, conn, preferred, ctx); + KUNIT_ASSERT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_ASSERT_EQ(test, conn_state->hdmi.output_bpc, 10); + KUNIT_ASSERT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.tmds_char_rate, preferred->clock * 1250); +} + +/* + * Test that when doing a commit which would use RGB 12bpc, the TMDS + * clock rate stored in the connector state is equal to 1.5 times the + * mode pixel clock + */ +static void drm_test_check_tmds_char_rate_rgb_12bpc(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx *ctx; + struct drm_connector_state *conn_state; + struct drm_display_mode *preferred; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 12); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + ret = set_connector_edid(test, conn, + test_edid_hdmi_1080p_rgb_yuv_dc_max_340mhz, + ARRAY_SIZE(test_edid_hdmi_1080p_rgb_yuv_dc_max_340mhz)); + KUNIT_ASSERT_EQ(test, ret, 0); + + 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); + KUNIT_ASSERT_FALSE(test, preferred->flags & DRM_MODE_FLAG_DBLCLK); + + drm = &priv->drm; + crtc = priv->crtc; + ret = light_up_connector(test, drm, crtc, conn, preferred, ctx); + KUNIT_ASSERT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_ASSERT_EQ(test, conn_state->hdmi.output_bpc, 12); + KUNIT_ASSERT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.tmds_char_rate, preferred->clock * 1500); +} + static struct kunit_case drm_atomic_helper_connector_hdmi_check_tests[] = { KUNIT_CASE(drm_test_check_output_bpc_crtc_mode_changed), KUNIT_CASE(drm_test_check_output_bpc_crtc_mode_not_changed), + 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), /* * TODO: We should have tests to check that a change in the * format triggers a CRTC mode change just like we do for the * RGB Quantization and BPC. * @@ -461,15 +604,38 @@ static void drm_test_check_format_value(struct kunit *test) conn = &priv->connector; conn_state = conn->state; KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); } +/* + * Test that the value of the output format property out of reset is set + * to 0, and will be computed at atomic_check time. + */ +static void drm_test_check_tmds_char_value(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_connector_state *conn_state; + struct drm_connector *conn; + + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV422) | + BIT(HDMI_COLORSPACE_YUV444), + 12); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + conn_state = conn->state; + KUNIT_EXPECT_EQ(test, conn_state->hdmi.tmds_char_rate, 0); +} + static struct kunit_case drm_atomic_helper_connector_hdmi_reset_tests[] = { KUNIT_CASE(drm_test_check_bpc_8_value), KUNIT_CASE(drm_test_check_bpc_10_value), KUNIT_CASE(drm_test_check_bpc_12_value), KUNIT_CASE(drm_test_check_format_value), + KUNIT_CASE(drm_test_check_tmds_char_value), { } }; static struct kunit_suite drm_atomic_helper_connector_hdmi_reset_test_suite = { .name = "drm_atomic_helper_connector_hdmi_reset", diff --git a/drivers/gpu/drm/tests/drm_kunit_edid.h b/drivers/gpu/drm/tests/drm_kunit_edid.h index 0366dd29c820..ed051d356d5e 100644 --- a/drivers/gpu/drm/tests/drm_kunit_edid.h +++ b/drivers/gpu/drm/tests/drm_kunit_edid.h @@ -101,6 +101,222 @@ static const unsigned char test_edid_hdmi_1080p_rgb_max_200mhz[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xd0 }; +/* + * edid-decode (hex): + * + * 00 ff ff ff ff ff ff 00 31 d8 2a 00 00 00 00 00 + * 00 21 01 03 81 a0 5a 78 1a 00 00 00 00 00 00 00 + * 00 00 00 20 00 00 01 01 01 01 01 01 01 01 01 01 + * 01 01 01 01 01 01 02 3a 80 18 71 38 2d 40 58 2c + * 45 00 40 84 63 00 00 1e 00 00 00 fc 00 54 65 73 + * 74 20 45 44 49 44 0a 20 20 20 00 00 00 fd 00 32 + * 46 1e 46 0f 00 0a 20 20 20 20 20 20 00 00 00 10 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 7a + * + * 02 03 1b b1 e3 05 00 20 41 10 e2 00 ca 6d 03 0c + * 00 12 34 78 28 20 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 a8 + * + * ---------------- + * + * Block 0, Base EDID: + * EDID Structure Version & Revision: 1.3 + * Vendor & Product Identification: + * Manufacturer: LNX + * Model: 42 + * Made in: 2023 + * Basic Display Parameters & Features: + * Digital display + * DFP 1.x compatible TMDS + * Maximum image size: 160 cm x 90 cm + * Gamma: 2.20 + * Undefined display color type + * First detailed timing is the preferred timing + * Color Characteristics: + * Red : 0.0000, 0.0000 + * Green: 0.0000, 0.0000 + * Blue : 0.0000, 0.0000 + * White: 0.0000, 0.0000 + * Established Timings I & II: + * DMT 0x04: 640x480 59.940476 Hz 4:3 31.469 kHz 25.175000 MHz + * Standard Timings: none + * Detailed Timing Descriptors: + * DTD 1: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz (1600 mm x 900 mm) + * Hfront 88 Hsync 44 Hback 148 Hpol P + * Vfront 4 Vsync 5 Vback 36 Vpol P + * Display Product Name: 'Test EDID' + * Display Range Limits: + * Monitor ranges (GTF): 50-70 Hz V, 30-70 kHz H, max dotclock 150 MHz + * Dummy Descriptor: + * Extension blocks: 1 + * Checksum: 0x7a + * + * ---------------- + * + * Block 1, CTA-861 Extension Block: + * Revision: 3 + * Underscans IT Video Formats by default + * Supports YCbCr 4:4:4 + * Supports YCbCr 4:2:2 + * Native detailed modes: 1 + * Colorimetry Data Block: + * sRGB + * Video Data Block: + * VIC 16: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz + * Video Capability Data Block: + * YCbCr quantization: Selectable (via AVI YQ) + * RGB quantization: Selectable (via AVI Q) + * PT scan behavior: No Data + * IT scan behavior: Always Underscanned + * CE scan behavior: Always Underscanned + * Vendor-Specific Data Block (HDMI), OUI 00-0C-03: + * Source physical address: 1.2.3.4 + * DC_48bit + * DC_36bit + * DC_30bit + * DC_Y444 + * Maximum TMDS clock: 200 MHz + * Extended HDMI video details: + * Checksum: 0xa8 Unused space in Extension Block: 100 bytes + */ +static const unsigned char test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz[] = { + 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x31, 0xd8, 0x2a, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x21, 0x01, 0x03, 0x81, 0xa0, 0x5a, 0x78, + 0x1a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, + 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x3a, 0x80, 0x18, 0x71, 0x38, + 0x2d, 0x40, 0x58, 0x2c, 0x45, 0x00, 0x40, 0x84, 0x63, 0x00, 0x00, 0x1e, + 0x00, 0x00, 0x00, 0xfc, 0x00, 0x54, 0x65, 0x73, 0x74, 0x20, 0x45, 0x44, + 0x49, 0x44, 0x0a, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x32, + 0x46, 0x1e, 0x46, 0x0f, 0x00, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x7a, 0x02, 0x03, 0x1b, 0xb1, + 0xe3, 0x05, 0x00, 0x20, 0x41, 0x10, 0xe2, 0x00, 0xca, 0x6d, 0x03, 0x0c, + 0x00, 0x12, 0x34, 0x78, 0x28, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0xa8 +}; + +/* + * edid-decode (hex): + * + * 00 ff ff ff ff ff ff 00 31 d8 2a 00 00 00 00 00 + * 00 21 01 03 81 a0 5a 78 0a 00 00 00 00 00 00 00 + * 00 00 00 20 00 00 01 01 01 01 01 01 01 01 01 01 + * 01 01 01 01 01 01 02 3a 80 18 71 38 2d 40 58 2c + * 45 00 40 84 63 00 00 1e 00 00 00 fc 00 54 65 73 + * 74 20 45 44 49 44 0a 20 20 20 00 00 00 fd 00 32 + * 46 1e 46 0f 00 0a 20 20 20 20 20 20 00 00 00 10 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 8a + * + * 02 03 1b b1 e3 05 00 20 41 10 e2 00 ca 6d 03 0c + * 00 12 34 78 44 20 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 8c + * + * ---------------- + * + * Block 0, Base EDID: + * EDID Structure Version & Revision: 1.3 + * Vendor & Product Identification: + * Manufacturer: LNX + * Model: 42 + * Made in: 2023 + * Basic Display Parameters & Features: + * Digital display + * DFP 1.x compatible TMDS + * Maximum image size: 160 cm x 90 cm + * Gamma: 2.20 + * RGB color display + * First detailed timing is the preferred timing + * Color Characteristics: + * Red : 0.0000, 0.0000 + * Green: 0.0000, 0.0000 + * Blue : 0.0000, 0.0000 + * White: 0.0000, 0.0000 + * Established Timings I & II: + * DMT 0x04: 640x480 59.940476 Hz 4:3 31.469 kHz 25.175000 MHz + * Standard Timings: none + * Detailed Timing Descriptors: + * DTD 1: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz (1600 mm x 900 mm) + * Hfront 88 Hsync 44 Hback 148 Hpol P + * Vfront 4 Vsync 5 Vback 36 Vpol P + * Display Product Name: 'Test EDID' + * Display Range Limits: + * Monitor ranges (GTF): 50-70 Hz V, 30-70 kHz H, max dotclock 150 MHz + * Dummy Descriptor: + * Extension blocks: 1 + * Checksum: 0x8a + * + * ---------------- + * + * Block 1, CTA-861 Extension Block: + * Revision: 3 + * Underscans IT Video Formats by default + * Supports YCbCr 4:4:4 + * Supports YCbCr 4:2:2 + * Native detailed modes: 1 + * Colorimetry Data Block: + * sRGB + * Video Data Block: + * VIC 16: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz + * Video Capability Data Block: + * YCbCr quantization: Selectable (via AVI YQ) + * RGB quantization: Selectable (via AVI Q) + * PT scan behavior: No Data + * IT scan behavior: Always Underscanned + * CE scan behavior: Always Underscanned + * Vendor-Specific Data Block (HDMI), OUI 00-0C-03: + * Source physical address: 1.2.3.4 + * DC_48bit + * DC_36bit + * DC_30bit + * DC_Y444 + * Maximum TMDS clock: 340 MHz + * Extended HDMI video details: + * Checksum: 0x8c Unused space in Extension Block: 100 bytes + */ +static const unsigned char test_edid_hdmi_1080p_rgb_yuv_dc_max_340mhz[] = { + 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x31, 0xd8, 0x2a, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x21, 0x01, 0x03, 0x81, 0xa0, 0x5a, 0x78, + 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, + 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x3a, 0x80, 0x18, 0x71, 0x38, + 0x2d, 0x40, 0x58, 0x2c, 0x45, 0x00, 0x40, 0x84, 0x63, 0x00, 0x00, 0x1e, + 0x00, 0x00, 0x00, 0xfc, 0x00, 0x54, 0x65, 0x73, 0x74, 0x20, 0x45, 0x44, + 0x49, 0x44, 0x0a, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x32, + 0x46, 0x1e, 0x46, 0x0f, 0x00, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x8a, 0x02, 0x03, 0x1b, 0xb1, + 0xe3, 0x05, 0x00, 0x20, 0x41, 0x10, 0xe2, 0x00, 0xca, 0x6d, 0x03, 0x0c, + 0x00, 0x12, 0x34, 0x78, 0x44, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x8c +}; + #endif // DRM_KUNIT_EDID_H_ From patchwork Tue May 7 13:17:31 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13657027 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 0A92DC25B4F for ; Tue, 7 May 2024 13:19:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References:Message-Id :MIME-Version:Subject:Date:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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Tue, 7 May 2024 13:18:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1715087900; bh=tjb8VJKKklQTryxYyKvZvdB0KvpfoC5BuBstXRwhh9s=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=YGvBAX0z+MFc0SOxt2b8Kg6UJgCb39XusM0Q0PuAA1tG6pJgLKYsDs92Fa4rSiKRS 9WGX4uusjRX2uywTVdkawwp4+8w6COFkBKRXzEvD9Kp2b4Lg/cYzKqQ77r2MPOvVFO DHHnSK5SLYF2ng9SR/L2wSElSaqwwEPmrZJI1YpqS+OuvnOUHF1sbEjspn0CNTlLKR Y9Y7vr5p6RBfAgEe0K0KKlk69yTDWlWapHajeyW++HH3DOqjSW8NNt8UgnUnb8NV9E 5QyZK7wSzIYGVntfMn6exT/5UaEFiMHPK9AcDw0vcTBmYZbCgF3PshoaUsQSvymD2y oq7a97Dc+LZlg== From: Maxime Ripard Date: Tue, 07 May 2024 15:17:31 +0200 Subject: [PATCH v13 13/28] drm/connector: hdmi: Add custom hook to filter TMDS character rate MIME-Version: 1.0 Message-Id: <20240507-kms-hdmi-connector-state-v13-13-8fafc5efe8be@kernel.org> References: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> In-Reply-To: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Andy Yan Cc: Hans Verkuil , Sebastian Wick , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, Maxime Ripard , Dave Stevenson X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=12776; i=mripard@kernel.org; h=from:subject:message-id; bh=tjb8VJKKklQTryxYyKvZvdB0KvpfoC5BuBstXRwhh9s=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDGlWmm86f626kBH7NP1uM1fimUxB+WW1GxXP9P8tzBGv2 ZAQ+cKyYyoLgzAng6yYIssTmbDTy9sXVznYr/wBM4eVCWQIAxenAEzkynrGhsbsVL+Ine8azxbO bOFx33rR9U1s/pN41+YTO0QveQuyJVQyXVM/zuB2fJqmeUWqydGfjA3zVKelJi75MvNv5uzu93W yZQlfLE9rucs/1hTZ8OpBebX408UP43+Wie7793+zmdQU+Y0A X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240507_061821_619512_6CECB3CF X-CRM114-Status: GOOD ( 18.97 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Most of the HDMI controllers have an upper TMDS character rate limit they can't exceed. On "embedded"-grade display controllers, it will typically be lower than what high-grade monitors can provide these days, so drivers will filter the TMDS character rate based on the controller capabilities. To make that easier to handle for drivers, let's provide an optional hook to be implemented by drivers so they can tell the HDMI controller helpers if a given TMDS character rate is reachable for them or not. This will then be useful to figure out the best format and bpc count for a given mode. Reviewed-by: Dave Stevenson Signed-off-by: Maxime Ripard --- drivers/gpu/drm/display/drm_hdmi_state_helper.c | 9 +++++++ drivers/gpu/drm/drm_connector.c | 4 +++ drivers/gpu/drm/tests/drm_connector_test.c | 14 ++++++++++ drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c | 4 +++ include/drm/drm_connector.h | 31 ++++++++++++++++++++++ 5 files changed, 62 insertions(+) diff --git a/drivers/gpu/drm/display/drm_hdmi_state_helper.c b/drivers/gpu/drm/display/drm_hdmi_state_helper.c index 08630561d864..063421835dba 100644 --- a/drivers/gpu/drm/display/drm_hdmi_state_helper.c +++ b/drivers/gpu/drm/display/drm_hdmi_state_helper.c @@ -51,15 +51,24 @@ connector_state_get_mode(const struct drm_connector_state *conn_state) static enum drm_mode_status hdmi_clock_valid(const struct drm_connector *connector, const struct drm_display_mode *mode, unsigned long long clock) { + const struct drm_connector_hdmi_funcs *funcs = connector->hdmi.funcs; const struct drm_display_info *info = &connector->display_info; if (info->max_tmds_clock && clock > info->max_tmds_clock * 1000) return MODE_CLOCK_HIGH; + if (funcs && funcs->tmds_char_rate_valid) { + enum drm_mode_status status; + + status = funcs->tmds_char_rate_valid(connector, mode, clock); + if (status != MODE_OK) + return status; + } + return MODE_OK; } static int hdmi_compute_clock(const struct drm_connector *connector, diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index b629c8e990f4..555eac20e5a4 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -455,10 +455,11 @@ EXPORT_SYMBOL(drmm_connector_init); /** * drmm_connector_hdmi_init - Init a preallocated HDMI connector * @dev: DRM device * @connector: A pointer to the HDMI connector to init * @funcs: callbacks for this connector + * @hdmi_funcs: HDMI-related callbacks for this connector * @connector_type: user visible type of the connector * @ddc: optional pointer to the associated ddc adapter * @supported_formats: Bitmask of @hdmi_colorspace listing supported output formats * @max_bpc: Maximum bits per char the HDMI connector supports * @@ -474,10 +475,11 @@ EXPORT_SYMBOL(drmm_connector_init); * Zero on success, error code on failure. */ int drmm_connector_hdmi_init(struct drm_device *dev, struct drm_connector *connector, const struct drm_connector_funcs *funcs, + const struct drm_connector_hdmi_funcs *hdmi_funcs, int connector_type, struct i2c_adapter *ddc, unsigned long supported_formats, unsigned int max_bpc) { @@ -510,10 +512,12 @@ int drmm_connector_hdmi_init(struct drm_device *dev, connector->max_bpc = max_bpc; if (max_bpc > 8) drm_connector_attach_hdr_output_metadata_property(connector); + connector->hdmi.funcs = hdmi_funcs; + return 0; } EXPORT_SYMBOL(drmm_connector_hdmi_init); /** diff --git a/drivers/gpu/drm/tests/drm_connector_test.c b/drivers/gpu/drm/tests/drm_connector_test.c index 426d974d8d74..34d96f7fbb25 100644 --- a/drivers/gpu/drm/tests/drm_connector_test.c +++ b/drivers/gpu/drm/tests/drm_connector_test.c @@ -22,10 +22,13 @@ struct drm_connector_init_priv { struct drm_device drm; struct drm_connector connector; struct i2c_adapter ddc; }; +static const struct drm_connector_hdmi_funcs dummy_hdmi_funcs = { +}; + static const struct drm_connector_funcs dummy_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, }; @@ -187,10 +190,11 @@ static void drm_test_connector_hdmi_init_valid(struct kunit *test) struct drm_connector_init_priv *priv = test->priv; int ret; ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, &dummy_funcs, + &dummy_hdmi_funcs, DRM_MODE_CONNECTOR_HDMIA, &priv->ddc, BIT(HDMI_COLORSPACE_RGB), 8); KUNIT_EXPECT_EQ(test, ret, 0); @@ -205,10 +209,11 @@ static void drm_test_connector_hdmi_init_null_ddc(struct kunit *test) struct drm_connector_init_priv *priv = test->priv; int ret; ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, &dummy_funcs, + &dummy_hdmi_funcs, DRM_MODE_CONNECTOR_HDMIA, NULL, BIT(HDMI_COLORSPACE_RGB), 8); KUNIT_EXPECT_EQ(test, ret, 0); @@ -223,10 +228,11 @@ static void drm_test_connector_hdmi_init_bpc_invalid(struct kunit *test) struct drm_connector_init_priv *priv = test->priv; int ret; ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, &dummy_funcs, + &dummy_hdmi_funcs, DRM_MODE_CONNECTOR_HDMIA, &priv->ddc, BIT(HDMI_COLORSPACE_RGB), 9); KUNIT_EXPECT_LT(test, ret, 0); @@ -241,10 +247,11 @@ static void drm_test_connector_hdmi_init_bpc_null(struct kunit *test) struct drm_connector_init_priv *priv = test->priv; int ret; ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, &dummy_funcs, + &dummy_hdmi_funcs, DRM_MODE_CONNECTOR_HDMIA, &priv->ddc, BIT(HDMI_COLORSPACE_RGB), 0); KUNIT_EXPECT_LT(test, ret, 0); @@ -263,10 +270,11 @@ static void drm_test_connector_hdmi_init_bpc_8(struct kunit *test) uint64_t val; int ret; ret = drmm_connector_hdmi_init(&priv->drm, connector, &dummy_funcs, + &dummy_hdmi_funcs, DRM_MODE_CONNECTOR_HDMIA, &priv->ddc, BIT(HDMI_COLORSPACE_RGB), 8); KUNIT_EXPECT_EQ(test, ret, 0); @@ -297,10 +305,11 @@ static void drm_test_connector_hdmi_init_bpc_10(struct kunit *test) uint64_t val; int ret; ret = drmm_connector_hdmi_init(&priv->drm, connector, &dummy_funcs, + &dummy_hdmi_funcs, DRM_MODE_CONNECTOR_HDMIA, &priv->ddc, BIT(HDMI_COLORSPACE_RGB), 10); KUNIT_EXPECT_EQ(test, ret, 0); @@ -331,10 +340,11 @@ static void drm_test_connector_hdmi_init_bpc_12(struct kunit *test) uint64_t val; int ret; ret = drmm_connector_hdmi_init(&priv->drm, connector, &dummy_funcs, + &dummy_hdmi_funcs, DRM_MODE_CONNECTOR_HDMIA, &priv->ddc, BIT(HDMI_COLORSPACE_RGB), 12); KUNIT_EXPECT_EQ(test, ret, 0); @@ -361,10 +371,11 @@ static void drm_test_connector_hdmi_init_formats_empty(struct kunit *test) struct drm_connector_init_priv *priv = test->priv; int ret; ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, &dummy_funcs, + &dummy_hdmi_funcs, DRM_MODE_CONNECTOR_HDMIA, &priv->ddc, 0, 8); KUNIT_EXPECT_LT(test, ret, 0); @@ -379,10 +390,11 @@ static void drm_test_connector_hdmi_init_formats_no_rgb(struct kunit *test) struct drm_connector_init_priv *priv = test->priv; int ret; ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, &dummy_funcs, + &dummy_hdmi_funcs, DRM_MODE_CONNECTOR_HDMIA, &priv->ddc, BIT(HDMI_COLORSPACE_YUV422), 8); KUNIT_EXPECT_LT(test, ret, 0); @@ -398,10 +410,11 @@ static void drm_test_connector_hdmi_init_type_valid(struct kunit *test) unsigned int connector_type = *(unsigned int *)test->param_value; int ret; ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, &dummy_funcs, + &dummy_hdmi_funcs, connector_type, &priv->ddc, BIT(HDMI_COLORSPACE_RGB), 8); KUNIT_EXPECT_EQ(test, ret, 0); @@ -431,10 +444,11 @@ static void drm_test_connector_hdmi_init_type_invalid(struct kunit *test) unsigned int connector_type = *(unsigned int *)test->param_value; int ret; ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, &dummy_funcs, + &dummy_hdmi_funcs, connector_type, &priv->ddc, BIT(HDMI_COLORSPACE_RGB), 8); KUNIT_EXPECT_LT(test, ret, 0); 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 8ff53ee54e97..7f9a48902db4 100644 --- a/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c +++ b/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c @@ -110,10 +110,13 @@ static int set_connector_edid(struct kunit *test, struct drm_connector *connecto KUNIT_ASSERT_GT(test, ret, 0); return 0; } +static const struct drm_connector_hdmi_funcs dummy_connector_hdmi_funcs = { +}; + static int dummy_connector_get_modes(struct drm_connector *connector) { struct drm_atomic_helper_connector_hdmi_priv *priv = connector_to_priv(connector); const struct drm_edid *edid; @@ -192,10 +195,11 @@ drm_atomic_helper_connector_hdmi_init(struct kunit *test, enc->possible_crtcs = drm_crtc_mask(priv->crtc); conn = &priv->connector; ret = drmm_connector_hdmi_init(drm, conn, &dummy_connector_funcs, + &dummy_connector_hdmi_funcs, DRM_MODE_CONNECTOR_HDMIA, NULL, formats, max_bpc); KUNIT_ASSERT_EQ(test, ret, 0); diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index 54899c030031..3c0b6694074f 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -36,10 +36,11 @@ struct drm_connector_helper_funcs; struct drm_modeset_acquire_ctx; struct drm_device; struct drm_crtc; +struct drm_display_mode; struct drm_encoder; struct drm_panel; struct drm_property; struct drm_property_blob; struct drm_printer; @@ -1055,10 +1056,34 @@ struct drm_connector_state { */ unsigned long long tmds_char_rate; } hdmi; }; +/** + * struct drm_connector_hdmi_funcs - drm_hdmi_connector control functions + */ +struct drm_connector_hdmi_funcs { + /** + * @tmds_char_rate_valid: + * + * This callback is invoked at atomic_check time to figure out + * whether a particular TMDS character rate is supported by the + * driver. + * + * The @tmds_char_rate_valid callback is optional. + * + * Returns: + * + * Either &drm_mode_status.MODE_OK or one of the failure reasons + * in &enum drm_mode_status. + */ + enum drm_mode_status + (*tmds_char_rate_valid)(const struct drm_connector *connector, + const struct drm_display_mode *mode, + unsigned long long tmds_rate); +}; + /** * struct drm_connector_funcs - control connectors on a given device * * Each CRTC may have one or more connectors attached to it. The functions * below allow the core DRM code to control connectors, enumerate available modes, @@ -1923,10 +1948,15 @@ struct drm_connector { /** * @supported_formats: Bitmask of @hdmi_colorspace * supported by the controller. */ unsigned long supported_formats; + + /** + * @funcs: HDMI connector Control Functions + */ + const struct drm_connector_hdmi_funcs *funcs; } hdmi; }; #define obj_to_connector(x) container_of(x, struct drm_connector, base) @@ -1945,10 +1975,11 @@ int drmm_connector_init(struct drm_device *dev, int connector_type, struct i2c_adapter *ddc); int drmm_connector_hdmi_init(struct drm_device *dev, struct drm_connector *connector, const struct drm_connector_funcs *funcs, + const struct drm_connector_hdmi_funcs *hdmi_funcs, int connector_type, struct i2c_adapter *ddc, unsigned long supported_formats, unsigned int max_bpc); void drm_connector_attach_edid_property(struct drm_connector *connector); From patchwork Tue May 7 13:17:32 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13657029 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 29385C10F1A for ; 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Tue, 07 May 2024 13:19:19 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1s4Ki8-0000000B9d2-0fHr; Tue, 07 May 2024 13:18:31 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 8D2E96176F; Tue, 7 May 2024 13:18:23 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id ED8DFC4AF68; Tue, 7 May 2024 13:18:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1715087903; bh=uVl9xOyVk9U87YPq57W+/cP/Zw0Y1GWDSmUbflWVwuw=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=ABPQz5U4zhBZqPPt1NwBLs1/sqMxMHCO566l8RV+y1jgH243+B8TlC3hVcGJnfo50 A9FXvefAjSSXUScdtl4v/5vDauJJWCvs5YBR4Pn0JvL2YBHk/RIM8+xE/0ZcSAeCzr u8O0mgnFiLFwYNToyto9qyRW64D6m85ZNEF+jvtz1JnhU4fMcoCvxcdY15dhI+zGj8 fwsLFQvRw1I7m6eh/+104WFqZtIttStlPTU27HRWKc5hjeUIdQ3jif7GpGWyn2kqHH BDEwQZUGkOKosjB19HFG/5+IP0YetcBZOTwnV2ocgTWtQsX8H2S+/YTaFHQolvIbqY VMAprJYJh+AFw== From: Maxime Ripard Date: Tue, 07 May 2024 15:17:32 +0200 Subject: [PATCH v13 14/28] drm/tests: Add HDMI connector rate filter hook tests MIME-Version: 1.0 Message-Id: <20240507-kms-hdmi-connector-state-v13-14-8fafc5efe8be@kernel.org> References: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> In-Reply-To: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Andy Yan Cc: Hans Verkuil , Sebastian Wick , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, Maxime Ripard , Dave Stevenson X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=3898; i=mripard@kernel.org; h=from:subject:message-id; bh=uVl9xOyVk9U87YPq57W+/cP/Zw0Y1GWDSmUbflWVwuw=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDGlWmm81uQVm8n0q9KxM+FSWwcO0LOiYz3WtpTwz6la/Y 5kbfaurYyoLgzAng6yYIssTmbDTy9sXVznYr/wBM4eVCWQIAxenAExE5B9jw7pvik1HHBIuJZ28 m7w3dq4fr/qsqScr75XHyoexvX5pNqn8Gd/D+6yXfdLMk90O/DjfxlhfvfW6bnZAzJWIDaX5Jdm yFRURksl3w9exfz9uNXXH9huP94u6/X2fa9gWqSXJ6u/dVA8A X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240507_061824_863718_851DFA8F X-CRM114-Status: GOOD ( 15.49 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The previous patch adds a new hook for HDMI connectors to filter out configurations based on the TMDS character rate. Let's add some tests to make sure it works as expected. Reviewed-by: Dave Stevenson Signed-off-by: Maxime Ripard --- drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c | 65 ++++++++++++++++++++++ 1 file changed, 65 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 7f9a48902db4..ead998a691e7 100644 --- a/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c +++ b/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c @@ -113,10 +113,22 @@ static int set_connector_edid(struct kunit *test, struct drm_connector *connecto } static const struct drm_connector_hdmi_funcs dummy_connector_hdmi_funcs = { }; +static enum drm_mode_status +reject_connector_tmds_char_rate_valid(const struct drm_connector *connector, + const struct drm_display_mode *mode, + unsigned long long tmds_rate) +{ + return MODE_BAD; +} + +static const struct drm_connector_hdmi_funcs reject_connector_hdmi_funcs = { + .tmds_char_rate_valid = reject_connector_tmds_char_rate_valid, +}; + static int dummy_connector_get_modes(struct drm_connector *connector) { struct drm_atomic_helper_connector_hdmi_priv *priv = connector_to_priv(connector); const struct drm_edid *edid; @@ -491,11 +503,64 @@ static void drm_test_check_tmds_char_rate_rgb_12bpc(struct kunit *test) KUNIT_ASSERT_EQ(test, conn_state->hdmi.output_bpc, 12); KUNIT_ASSERT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); KUNIT_EXPECT_EQ(test, conn_state->hdmi.tmds_char_rate, preferred->clock * 1500); } +/* + * Test that if we filter a rate through our hook, it's indeed rejected + * by the whole atomic_check logic. + * + * We do so by first doing a commit on the pipeline to make sure that it + * works, change the HDMI helpers pointer, and then try the same commit + * again to see if it fails as it should. + */ +static void drm_test_check_hdmi_funcs_reject_rate(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx *ctx; + struct drm_atomic_state *state; + struct drm_display_mode *preferred; + struct drm_crtc_state *crtc_state; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_ASSERT_NOT_NULL(test, priv); + + ctx = drm_kunit_helper_acquire_ctx_alloc(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); + + conn = &priv->connector; + 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); + + /* You shouldn't be doing that at home. */ + conn->hdmi.funcs = &reject_connector_hdmi_funcs; + + state = drm_kunit_helper_atomic_state_alloc(test, drm, ctx); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); + + crtc_state = drm_atomic_get_crtc_state(state, crtc); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc_state); + + crtc_state->connectors_changed = true; + + ret = drm_atomic_check_only(state); + KUNIT_EXPECT_LT(test, ret, 0); +} + static struct kunit_case drm_atomic_helper_connector_hdmi_check_tests[] = { + KUNIT_CASE(drm_test_check_hdmi_funcs_reject_rate), KUNIT_CASE(drm_test_check_output_bpc_crtc_mode_changed), KUNIT_CASE(drm_test_check_output_bpc_crtc_mode_not_changed), 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), From patchwork Tue May 7 13:17:33 2024 Content-Type: text/plain; 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b=pGz9cMy3ioZiL93lQs3IlVU1kzaUhZ2cVza7ZUNCGV7Etsr9GVPA8imo1kpH7kVI3 oCBULll/TKZDodc7wSl+aWehtBzxISDca7YAk/sRyRwKxl+ws1vLi7F0ebI+GvnBqG TUnULg8jJcXZ8dH+ehEuavoFuSh7SqAyX+W0RYffMT9Vw4VSrxORi6GyEcg+DvEdW4 uqFqvysO5MIUzQfoZJSyg6W8DMPZyuuYJWI75NT1z20rMQoB1/UH4yddcQjlCMaMd3 WAxpu3x+mCTelhZHn4DiiWMSXfijlNrIIoB/mbypzey38N3dzmWgkAiNtIqbnwMIxv PNdaCU4ZcjppQ== From: Maxime Ripard Date: Tue, 07 May 2024 15:17:33 +0200 Subject: [PATCH v13 15/28] drm/connector: hdmi: Compute bpc and format automatically MIME-Version: 1.0 Message-Id: <20240507-kms-hdmi-connector-state-v13-15-8fafc5efe8be@kernel.org> References: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> In-Reply-To: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Andy Yan Cc: Hans Verkuil , Sebastian Wick , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, Maxime Ripard X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=11837; i=mripard@kernel.org; h=from:subject:message-id; bh=MFh6XBBBJRBlEIIJs6KhuU7h4XMccC70JG5oFoZobdI=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDGlWmm+v/C3+pfvxdIN14nG/L2EV27onJC+PeVo9S+3M0 z61JX+iOqayMAhzMsiKKbI8kQk7vbx9cZWD/cofMHNYmUCGMHBxCsBEbLgZ69RniC3P3CPcIO/7 eylvTWbPTfYrK2d6zFZd/Xq+m+di3vmHX22t0Z07L27BN+G+1ZN9bRjrrJ+vUlpyYEJBhLNDt5L g16u/7+39zudR1XQle93z/58+NCnM/M/FplQw9TBD0pWYpcXGAA== X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240507_141913_495297_E9959E35 X-CRM114-Status: GOOD ( 19.33 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Now that we have all the infrastructure needed, we can add some code that will, for a given connector state and mode, compute the best output format and bpc. The algorithm is equivalent to the one already found in i915 and vc4. Cc: Ville Syrjälä Signed-off-by: Maxime Ripard --- drivers/gpu/drm/display/drm_hdmi_state_helper.c | 199 ++++++++++++++++++++- drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c | 25 ++- 2 files changed, 212 insertions(+), 12 deletions(-) diff --git a/drivers/gpu/drm/display/drm_hdmi_state_helper.c b/drivers/gpu/drm/display/drm_hdmi_state_helper.c index 063421835dba..f20dcfecb6b8 100644 --- a/drivers/gpu/drm/display/drm_hdmi_state_helper.c +++ b/drivers/gpu/drm/display/drm_hdmi_state_helper.c @@ -1,9 +1,11 @@ // SPDX-License-Identifier: MIT #include #include +#include +#include #include #include /** @@ -46,10 +48,112 @@ connector_state_get_mode(const struct drm_connector_state *conn_state) return NULL; return &crtc_state->mode; } +static bool +sink_supports_format_bpc(const struct drm_connector *connector, + const struct drm_display_info *info, + const struct drm_display_mode *mode, + unsigned int format, unsigned int bpc) +{ + struct drm_device *dev = connector->dev; + u8 vic = drm_match_cea_mode(mode); + + /* + * CTA-861-F, section 5.4 - Color Coding & Quantization states + * that the bpc must be 8, 10, 12 or 16 except for the default + * 640x480 VIC1 where the value must be 8. + * + * The definition of default here is ambiguous but the spec + * refers to VIC1 being the default timing in several occasions + * so our understanding is that for the default timing (ie, + * VIC1), the bpc must be 8. + */ + if (vic == 1 && bpc != 8) { + drm_dbg_kms(dev, "VIC1 requires a bpc of 8, got %u\n", bpc); + return false; + } + + if (!info->is_hdmi && + (format != HDMI_COLORSPACE_RGB || bpc != 8)) { + drm_dbg_kms(dev, "DVI Monitors require an RGB output at 8 bpc\n"); + return false; + } + + if (!(connector->hdmi.supported_formats & BIT(format))) { + drm_dbg_kms(dev, "%s format unsupported by the connector.\n", + drm_hdmi_connector_get_output_format_name(format)); + return false; + } + + switch (format) { + case HDMI_COLORSPACE_RGB: + drm_dbg_kms(dev, "RGB Format, checking the constraints.\n"); + + if (!(info->color_formats & DRM_COLOR_FORMAT_RGB444)) { + drm_dbg_kms(dev, "Sink doesn't support RGB.\n"); + return false; + } + + if (bpc == 10 && !(info->edid_hdmi_rgb444_dc_modes & DRM_EDID_HDMI_DC_30)) { + drm_dbg_kms(dev, "10 BPC but sink doesn't support Deep Color 30.\n"); + return false; + } + + if (bpc == 12 && !(info->edid_hdmi_rgb444_dc_modes & DRM_EDID_HDMI_DC_36)) { + drm_dbg_kms(dev, "12 BPC but sink doesn't support Deep Color 36.\n"); + return false; + } + + drm_dbg_kms(dev, "RGB format supported in that configuration.\n"); + + return true; + + case HDMI_COLORSPACE_YUV422: + drm_dbg_kms(dev, "YUV422 format, checking the constraints.\n"); + + if (!(info->color_formats & DRM_COLOR_FORMAT_YCBCR422)) { + drm_dbg_kms(dev, "Sink doesn't support YUV422.\n"); + return false; + } + + if (bpc != 12) { + drm_dbg_kms(dev, "YUV422 only supports 12 bpc.\n"); + return false; + } + + drm_dbg_kms(dev, "YUV422 format supported in that configuration.\n"); + + return true; + + case HDMI_COLORSPACE_YUV444: + drm_dbg_kms(dev, "YUV444 format, checking the constraints.\n"); + + if (!(info->color_formats & DRM_COLOR_FORMAT_YCBCR444)) { + drm_dbg_kms(dev, "Sink doesn't support YUV444.\n"); + return false; + } + + if (bpc == 10 && !(info->edid_hdmi_ycbcr444_dc_modes & DRM_EDID_HDMI_DC_30)) { + drm_dbg_kms(dev, "10 BPC but sink doesn't support Deep Color 30.\n"); + return false; + } + + if (bpc == 12 && !(info->edid_hdmi_ycbcr444_dc_modes & DRM_EDID_HDMI_DC_36)) { + drm_dbg_kms(dev, "12 BPC but sink doesn't support Deep Color 36.\n"); + return false; + } + + drm_dbg_kms(dev, "YUV444 format supported in that configuration.\n"); + + return true; + } + + return false; +} + static enum drm_mode_status hdmi_clock_valid(const struct drm_connector *connector, const struct drm_display_mode *mode, unsigned long long clock) { @@ -90,10 +194,101 @@ hdmi_compute_clock(const struct drm_connector *connector, conn_state->hdmi.tmds_char_rate = clock; return 0; } +static bool +hdmi_try_format_bpc(const struct drm_connector *connector, + struct drm_connector_state *conn_state, + const struct drm_display_mode *mode, + unsigned int bpc, enum hdmi_colorspace fmt) +{ + const struct drm_display_info *info = &connector->display_info; + struct drm_device *dev = connector->dev; + int ret; + + drm_dbg_kms(dev, "Trying %s output format\n", + drm_hdmi_connector_get_output_format_name(fmt)); + + if (!sink_supports_format_bpc(connector, info, mode, fmt, bpc)) { + drm_dbg_kms(dev, "%s output format not supported with %u bpc\n", + drm_hdmi_connector_get_output_format_name(fmt), + bpc); + return false; + } + + ret = hdmi_compute_clock(connector, conn_state, mode, bpc, fmt); + if (ret) { + drm_dbg_kms(dev, "Couldn't compute clock for %s output format and %u bpc\n", + drm_hdmi_connector_get_output_format_name(fmt), + bpc); + return false; + } + + drm_dbg_kms(dev, "%s output format supported with %u (TMDS char rate: %llu Hz)\n", + drm_hdmi_connector_get_output_format_name(fmt), + bpc, conn_state->hdmi.tmds_char_rate); + + return true; +} + +static int +hdmi_compute_format(const struct drm_connector *connector, + struct drm_connector_state *conn_state, + const struct drm_display_mode *mode, + unsigned int bpc) +{ + struct drm_device *dev = connector->dev; + + /* + * TODO: Add support for YCbCr420 output for HDMI 2.0 capable + * devices, for modes that only support YCbCr420. + */ + if (hdmi_try_format_bpc(connector, conn_state, mode, bpc, HDMI_COLORSPACE_RGB)) { + conn_state->hdmi.output_format = HDMI_COLORSPACE_RGB; + return 0; + } + + drm_dbg_kms(dev, "Failed. No Format Supported for that bpc count.\n"); + + return -EINVAL; +} + +static int +hdmi_compute_config(const struct drm_connector *connector, + struct drm_connector_state *conn_state, + const struct drm_display_mode *mode) +{ + struct drm_device *dev = connector->dev; + unsigned int max_bpc = clamp_t(unsigned int, + conn_state->max_bpc, + 8, connector->max_bpc); + unsigned int bpc; + int ret; + + for (bpc = max_bpc; bpc >= 8; bpc -= 2) { + drm_dbg_kms(dev, "Trying with a %d bpc output\n", bpc); + + ret = hdmi_compute_format(connector, conn_state, mode, bpc); + if (ret) + continue; + + conn_state->hdmi.output_bpc = bpc; + + drm_dbg_kms(dev, + "Mode %ux%u @ %uHz: Found configuration: bpc: %u, fmt: %s, clock: %llu\n", + mode->hdisplay, mode->vdisplay, drm_mode_vrefresh(mode), + conn_state->hdmi.output_bpc, + drm_hdmi_connector_get_output_format_name(conn_state->hdmi.output_format), + conn_state->hdmi.tmds_char_rate); + + return 0; + } + + return -EINVAL; +} + /** * drm_atomic_helper_connector_hdmi_check() - Helper to check HDMI connector atomic state * @connector: DRM Connector * @state: the DRM State object * @@ -113,13 +308,11 @@ int drm_atomic_helper_connector_hdmi_check(struct drm_connector *connector, drm_atomic_get_new_connector_state(state, connector); const struct drm_display_mode *mode = connector_state_get_mode(new_conn_state); int ret; - ret = hdmi_compute_clock(connector, new_conn_state, mode, - new_conn_state->hdmi.output_bpc, - new_conn_state->hdmi.output_format); + ret = hdmi_compute_config(connector, new_conn_state, mode); if (ret) return ret; if (old_conn_state->hdmi.output_bpc != new_conn_state->hdmi.output_bpc || old_conn_state->hdmi.output_format != new_conn_state->hdmi.output_format) { 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 ead998a691e7..a49a544d7b49 100644 --- a/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c +++ b/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c @@ -70,13 +70,10 @@ static int light_up_connector(struct kunit *test, KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); conn_state = drm_atomic_get_connector_state(state, connector); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); - conn_state->hdmi.output_bpc = connector->max_bpc; - conn_state->hdmi.output_format = HDMI_COLORSPACE_RGB; - ret = drm_atomic_set_crtc_for_connector(conn_state, crtc); KUNIT_EXPECT_EQ(test, ret, 0); crtc_state = drm_atomic_get_crtc_state(state, crtc); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc_state); @@ -251,14 +248,19 @@ static void drm_test_check_output_bpc_crtc_mode_changed(struct kunit *test) priv = drm_atomic_helper_connector_hdmi_init(test, BIT(HDMI_COLORSPACE_RGB), 10); KUNIT_ASSERT_NOT_NULL(test, priv); + conn = &priv->connector; + ret = set_connector_edid(test, conn, + test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz, + ARRAY_SIZE(test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz)); + KUNIT_ASSERT_EQ(test, ret, 0); + ctx = drm_kunit_helper_acquire_ctx_alloc(test); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); - conn = &priv->connector; preferred = find_preferred_mode(conn); KUNIT_ASSERT_NOT_NULL(test, preferred); drm = &priv->drm; crtc = priv->crtc; @@ -272,15 +274,15 @@ static void drm_test_check_output_bpc_crtc_mode_changed(struct kunit *test) 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_conn_state->hdmi.output_bpc = 8; + new_conn_state->max_requested_bpc = 8; KUNIT_ASSERT_NE(test, - old_conn_state->hdmi.output_bpc, - new_conn_state->hdmi.output_bpc); + old_conn_state->max_requested_bpc, + new_conn_state->max_requested_bpc); ret = drm_atomic_check_only(state); KUNIT_ASSERT_EQ(test, ret, 0); old_conn_state = drm_atomic_get_old_connector_state(state, conn); @@ -320,14 +322,19 @@ static void drm_test_check_output_bpc_crtc_mode_not_changed(struct kunit *test) priv = drm_atomic_helper_connector_hdmi_init(test, BIT(HDMI_COLORSPACE_RGB), 10); KUNIT_ASSERT_NOT_NULL(test, priv); + conn = &priv->connector; + ret = set_connector_edid(test, conn, + test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz, + ARRAY_SIZE(test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz)); + KUNIT_ASSERT_EQ(test, ret, 0); + ctx = drm_kunit_helper_acquire_ctx_alloc(test); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); - conn = &priv->connector; preferred = find_preferred_mode(conn); KUNIT_ASSERT_NOT_NULL(test, preferred); drm = &priv->drm; crtc = priv->crtc; @@ -670,11 +677,11 @@ static void drm_test_check_format_value(struct kunit *test) 8); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; conn_state = conn->state; - KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, 0); } /* * Test that the value of the output format property out of reset is set * to 0, and will be computed at atomic_check time. From patchwork Tue May 7 13:17:34 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13657032 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 64446C41513 for ; Tue, 7 May 2024 13:19:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References:Message-Id :MIME-Version:Subject:Date:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=EaAn2BXDx1WTpwllYKY3E4UfnFOg8ywAcHbvKOC+nUA=; b=dwxZSx+29fyW0D qRrqBYHk74uqlAc67chOuoY/Zhs6nFfVZjB/x9OagHKEu+mNBdMVLe1I90P4MuLsYFORAEYDM29/1 373YOEEUoI+G/2aYA4xL0b7Khno7F6JQL0jGlQQH1uesA/Xs0L79ztnvBBb7NAqyf3KyPZqMtTHTW Ew4ON0EdvciKwIxSGAntqekrFE4Spe/StusNSE+anFCUJrx0nrqw7Kh3kizLjuOz6SFS3miJ7rpMF b+7Xf7QWss6um6FLw8hrJTW7EVoaB3eDzYpQM1kO1Nl/k25gSrAspYCiGtT9ZABtgP9n2+zTED69u bRjk7d/mDDrY7SXv7HlA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1s4KjR-0000000BAk8-34kY; Tue, 07 May 2024 13:19:46 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1s4KiD-0000000B9h7-41YG; Tue, 07 May 2024 13:18:39 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 532C261766; Tue, 7 May 2024 13:18:29 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9D37DC2BBFC; Tue, 7 May 2024 13:18:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1715087909; bh=pvBnrUZ9FZTAh4f+08awPF6ULshiiDndrHzDXFoU2Hg=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=OSVUnh1UDeEgzX+bhCS2Oevh8WEUNp6+t/SqckasYJRYz+WEFn+CAG8GcfnZ+cmBQ NCU/5BDeC7wXjA3wr2hf199Siyni30OGkfQ2peNbcvVJGlF4t7eNkM7ndABjdGJo28 CWPWOKjrl3CnBhBlg/2D3IMIq2TMOjuqF6XLQD/cNWk7NRfRWiLdZ9LCloAzTjNebC dYWgwsrfK+YGn+LArcmEkCuGiGjkEtaQlXQ4oTs9seHdVskTeSizIxkMGAfc+M1uOo jidHb1D9hxFDbLkrTaXnIz5D3vC05wtAK8tvWG5G1kqHceNrWj9mdcZRwuhigfT/Z3 xu7pRYHMoQm/w== From: Maxime Ripard Date: Tue, 07 May 2024 15:17:34 +0200 Subject: [PATCH v13 16/28] drm/tests: Add HDMI connector bpc and format tests MIME-Version: 1.0 Message-Id: <20240507-kms-hdmi-connector-state-v13-16-8fafc5efe8be@kernel.org> References: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> In-Reply-To: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Andy Yan Cc: Hans Verkuil , Sebastian Wick , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, Maxime Ripard X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=27655; i=mripard@kernel.org; h=from:subject:message-id; bh=pvBnrUZ9FZTAh4f+08awPF6ULshiiDndrHzDXFoU2Hg=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDGlWmu++ulXPi3RI/C//O+Lbr7/sAYvv+2zrUrWNFux/Z ZHhG7G+YyoLgzAng6yYIssTmbDTy9sXVznYr/wBM4eVCWQIAxenAEzEaTtjw71AvdI2h2vPM55P YDQTTV/0tZvTVpcrR7LY85HY7r0GaXyrJyvvt1klUfx4WlsM06GTjPUZLKZvWiam187ccF1De27 V0pVyU+YtlshsLv4ncKm5LbCBq0X+AsNFz59brlYbLc1SuwkA X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240507_061830_513374_E30D7783 X-CRM114-Status: GOOD ( 20.20 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The previous patch added the bpc and format an HDMI connector needs to be set up with for a given connector state. Let's add a few tests to make sure it works as expected. Signed-off-by: Maxime Ripard --- drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c | 509 +++++++++++++++++++++ drivers/gpu/drm/tests/drm_kunit_edid.h | 160 +++++++ 2 files changed, 669 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 a49a544d7b49..968204781928 100644 --- a/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c +++ b/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c @@ -15,10 +15,11 @@ #include #include #include #include +#include #include #include "../drm_crtc_internal.h" #include @@ -370,10 +371,60 @@ static void drm_test_check_output_bpc_crtc_mode_not_changed(struct kunit *test) crtc_state = drm_atomic_get_new_crtc_state(state, crtc); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc_state); KUNIT_EXPECT_FALSE(test, crtc_state->mode_changed); } +/* + * Test that if we have an HDMI connector but a !HDMI display, we always + * output RGB with 8 bpc. + */ +static void drm_test_check_output_bpc_dvi(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx *ctx; + struct drm_connector_state *conn_state; + struct drm_display_info *info; + struct drm_display_mode *preferred; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV422) | + BIT(HDMI_COLORSPACE_YUV444), + 12); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + ret = set_connector_edid(test, conn, + test_edid_dvi_1080p, + ARRAY_SIZE(test_edid_dvi_1080p)); + KUNIT_ASSERT_EQ(test, ret, 0); + + info = &conn->display_info; + KUNIT_ASSERT_FALSE(test, 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); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 8); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); +} + /* * Test that when doing a commit which would use RGB 8bpc, the TMDS * clock rate stored in the connector state is equal to the mode clock */ static void drm_test_check_tmds_char_rate_rgb_8bpc(struct kunit *test) @@ -562,14 +613,472 @@ static void drm_test_check_hdmi_funcs_reject_rate(struct kunit *test) ret = drm_atomic_check_only(state); KUNIT_EXPECT_LT(test, ret, 0); } +/* + * Test that if: + * - We have an HDMI connector supporting RGB only + * - The chosen mode has a TMDS character rate higher than the display + * supports in RGB/12bpc + * - The chosen mode has a TMDS character rate lower than the display + * supports in RGB/10bpc. + * + * Then we will pick the latter, and the computed TMDS character rate + * will be equal to 1.25 times the mode pixel clock. + */ +static void drm_test_check_max_tmds_rate_bpc_fallback(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx *ctx; + struct drm_connector_state *conn_state; + struct drm_display_info *info; + struct drm_display_mode *preferred; + unsigned long long rate; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 12); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + ret = set_connector_edid(test, conn, + test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz, + ARRAY_SIZE(test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz)); + KUNIT_ASSERT_EQ(test, ret, 0); + + info = &conn->display_info; + KUNIT_ASSERT_TRUE(test, info->is_hdmi); + KUNIT_ASSERT_GT(test, info->max_tmds_clock, 0); + + 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); + KUNIT_ASSERT_FALSE(test, preferred->flags & DRM_MODE_FLAG_DBLCLK); + + rate = drm_hdmi_compute_mode_clock(preferred, 12, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_GT(test, rate, info->max_tmds_clock * 1000); + + rate = drm_hdmi_compute_mode_clock(preferred, 10, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_LT(test, rate, info->max_tmds_clock * 1000); + + drm = &priv->drm; + crtc = priv->crtc; + ret = light_up_connector(test, drm, crtc, conn, preferred, ctx); + KUNIT_EXPECT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 10); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.tmds_char_rate, preferred->clock * 1250); +} + +/* + * Test that if: + * - We have an HDMI connector supporting both RGB and YUV422 and up to + * 12 bpc + * - The chosen mode has a TMDS character rate higher than the display + * supports in RGB/12bpc but lower than the display supports in + * RGB/10bpc + * - The chosen mode has a TMDS character rate lower than the display + * supports in YUV422/12bpc. + * + * Then we will prefer to keep the RGB format with a lower bpc over + * picking YUV422. + */ +static void drm_test_check_max_tmds_rate_format_fallback(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx *ctx; + struct drm_connector_state *conn_state; + struct drm_display_info *info; + struct drm_display_mode *preferred; + unsigned long long rate; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV422) | + BIT(HDMI_COLORSPACE_YUV444), + 12); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + ret = set_connector_edid(test, conn, + test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz, + ARRAY_SIZE(test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz)); + KUNIT_ASSERT_EQ(test, ret, 0); + + info = &conn->display_info; + KUNIT_ASSERT_TRUE(test, info->is_hdmi); + KUNIT_ASSERT_GT(test, info->max_tmds_clock, 0); + + 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); + KUNIT_ASSERT_FALSE(test, preferred->flags & DRM_MODE_FLAG_DBLCLK); + + rate = drm_hdmi_compute_mode_clock(preferred, 10, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_LT(test, rate, info->max_tmds_clock * 1000); + + rate = drm_hdmi_compute_mode_clock(preferred, 12, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_GT(test, rate, info->max_tmds_clock * 1000); + + rate = drm_hdmi_compute_mode_clock(preferred, 12, HDMI_COLORSPACE_YUV422); + KUNIT_ASSERT_LT(test, rate, info->max_tmds_clock * 1000); + + drm = &priv->drm; + crtc = priv->crtc; + ret = light_up_connector(test, drm, crtc, conn, preferred, ctx); + KUNIT_EXPECT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 10); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); +} + +/* + * Test that if a driver and screen supports RGB and YUV formats, and we + * try to set the VIC 1 mode, we end up with 8bpc RGB even if we could + * have had a higher bpc. + */ +static void drm_test_check_output_bpc_format_vic_1(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx *ctx; + struct drm_connector_state *conn_state; + struct drm_display_info *info; + struct drm_display_mode *mode; + unsigned long long rate; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV422) | + BIT(HDMI_COLORSPACE_YUV444), + 12); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + conn = &priv->connector; + ret = set_connector_edid(test, conn, + test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz, + ARRAY_SIZE(test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz)); + KUNIT_ASSERT_EQ(test, ret, 0); + + info = &conn->display_info; + KUNIT_ASSERT_TRUE(test, info->is_hdmi); + KUNIT_ASSERT_GT(test, info->max_tmds_clock, 0); + + ctx = drm_kunit_helper_acquire_ctx_alloc(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); + + mode = drm_display_mode_from_cea_vic(drm, 1); + KUNIT_ASSERT_NOT_NULL(test, mode); + + /* + * NOTE: We can't use drm_hdmi_compute_mode_clock() + * here because we're trying to get the rate of an invalid + * configuration. + * + * Thus, we have to calculate the rate by hand. + */ + rate = mode->clock * 1500; + KUNIT_ASSERT_LT(test, rate, info->max_tmds_clock * 1000); + + drm = &priv->drm; + crtc = priv->crtc; + ret = light_up_connector(test, drm, crtc, conn, mode, ctx); + KUNIT_EXPECT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 8); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); +} + +/* + * Test that if a driver supports only RGB but the screen also supports + * YUV formats, we only end up with an RGB format. + */ +static void drm_test_check_output_bpc_format_driver_rgb_only(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx *ctx; + struct drm_connector_state *conn_state; + struct drm_display_info *info; + struct drm_display_mode *preferred; + unsigned long long rate; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 12); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + ret = set_connector_edid(test, conn, + test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz, + ARRAY_SIZE(test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz)); + KUNIT_ASSERT_EQ(test, ret, 0); + + info = &conn->display_info; + KUNIT_ASSERT_TRUE(test, info->is_hdmi); + KUNIT_ASSERT_GT(test, info->max_tmds_clock, 0); + + 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); + + /* + * We're making sure that YUV422 would be the preferred option + * here: we're always favouring higher bpc, we can't have RGB + * because the TMDS character rate exceeds the maximum supported + * by the display, and YUV422 works for that display. + * + * But since the driver only supports RGB, we should fallback to + * a lower bpc with RGB. + */ + rate = drm_hdmi_compute_mode_clock(preferred, 12, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_GT(test, rate, info->max_tmds_clock * 1000); + + rate = drm_hdmi_compute_mode_clock(preferred, 12, HDMI_COLORSPACE_YUV422); + KUNIT_ASSERT_LT(test, rate, info->max_tmds_clock * 1000); + + drm = &priv->drm; + crtc = priv->crtc; + ret = light_up_connector(test, drm, crtc, conn, preferred, ctx); + KUNIT_EXPECT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_EXPECT_LT(test, conn_state->hdmi.output_bpc, 12); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); +} + +/* + * Test that if a screen supports only RGB but the driver also supports + * YUV formats, we only end up with an RGB format. + */ +static void drm_test_check_output_bpc_format_display_rgb_only(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx *ctx; + struct drm_connector_state *conn_state; + struct drm_display_info *info; + struct drm_display_mode *preferred; + unsigned long long rate; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV422) | + BIT(HDMI_COLORSPACE_YUV444), + 12); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + ret = set_connector_edid(test, conn, + test_edid_hdmi_1080p_rgb_max_200mhz, + ARRAY_SIZE(test_edid_hdmi_1080p_rgb_max_200mhz)); + KUNIT_ASSERT_EQ(test, ret, 0); + + info = &conn->display_info; + KUNIT_ASSERT_TRUE(test, info->is_hdmi); + KUNIT_ASSERT_GT(test, info->max_tmds_clock, 0); + + 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); + + /* + * We're making sure that YUV422 would be the preferred option + * here: we're always favouring higher bpc, we can't have RGB + * because the TMDS character rate exceeds the maximum supported + * by the display, and YUV422 works for that display. + * + * But since the display only supports RGB, we should fallback to + * a lower bpc with RGB. + */ + rate = drm_hdmi_compute_mode_clock(preferred, 12, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_GT(test, rate, info->max_tmds_clock * 1000); + + rate = drm_hdmi_compute_mode_clock(preferred, 12, HDMI_COLORSPACE_YUV422); + KUNIT_ASSERT_LT(test, rate, info->max_tmds_clock * 1000); + + drm = &priv->drm; + crtc = priv->crtc; + ret = light_up_connector(test, drm, crtc, conn, preferred, ctx); + KUNIT_EXPECT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_EXPECT_LT(test, conn_state->hdmi.output_bpc, 12); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); +} + +/* + * Test that if a display supports higher bpc but the driver only + * supports 8 bpc, we only end up with 8 bpc even if we could have had a + * higher bpc. + */ +static void drm_test_check_output_bpc_format_driver_8bpc_only(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx *ctx; + struct drm_connector_state *conn_state; + struct drm_display_info *info; + struct drm_display_mode *preferred; + unsigned long long rate; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + ret = set_connector_edid(test, conn, + test_edid_hdmi_1080p_rgb_yuv_dc_max_340mhz, + ARRAY_SIZE(test_edid_hdmi_1080p_rgb_yuv_dc_max_340mhz)); + KUNIT_ASSERT_EQ(test, ret, 0); + + info = &conn->display_info; + KUNIT_ASSERT_TRUE(test, info->is_hdmi); + KUNIT_ASSERT_GT(test, info->max_tmds_clock, 0); + + 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); + + /* + * We're making sure that we have headroom on the TMDS character + * clock to actually use 12bpc. + */ + rate = drm_hdmi_compute_mode_clock(preferred, 12, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_LT(test, rate, info->max_tmds_clock * 1000); + + drm = &priv->drm; + crtc = priv->crtc; + ret = light_up_connector(test, drm, crtc, conn, preferred, ctx); + KUNIT_EXPECT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 8); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); +} + +/* + * Test that if a driver supports higher bpc but the display only + * supports 8 bpc, we only end up with 8 bpc even if we could have had a + * higher bpc. + */ +static void drm_test_check_output_bpc_format_display_8bpc_only(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx *ctx; + struct drm_connector_state *conn_state; + struct drm_display_info *info; + struct drm_display_mode *preferred; + unsigned long long rate; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV422) | + BIT(HDMI_COLORSPACE_YUV444), + 12); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + ret = set_connector_edid(test, conn, + test_edid_hdmi_1080p_rgb_max_340mhz, + ARRAY_SIZE(test_edid_hdmi_1080p_rgb_max_340mhz)); + KUNIT_ASSERT_EQ(test, ret, 0); + + info = &conn->display_info; + KUNIT_ASSERT_TRUE(test, info->is_hdmi); + KUNIT_ASSERT_GT(test, info->max_tmds_clock, 0); + + 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); + + /* + * We're making sure that we have headroom on the TMDS character + * clock to actually use 12bpc. + */ + rate = drm_hdmi_compute_mode_clock(preferred, 12, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_LT(test, rate, info->max_tmds_clock * 1000); + + drm = &priv->drm; + crtc = priv->crtc; + ret = light_up_connector(test, drm, crtc, conn, preferred, ctx); + KUNIT_EXPECT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 8); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); +} + static struct kunit_case drm_atomic_helper_connector_hdmi_check_tests[] = { KUNIT_CASE(drm_test_check_hdmi_funcs_reject_rate), + KUNIT_CASE(drm_test_check_max_tmds_rate_bpc_fallback), + KUNIT_CASE(drm_test_check_max_tmds_rate_format_fallback), KUNIT_CASE(drm_test_check_output_bpc_crtc_mode_changed), KUNIT_CASE(drm_test_check_output_bpc_crtc_mode_not_changed), + KUNIT_CASE(drm_test_check_output_bpc_dvi), + KUNIT_CASE(drm_test_check_output_bpc_format_vic_1), + KUNIT_CASE(drm_test_check_output_bpc_format_display_8bpc_only), + KUNIT_CASE(drm_test_check_output_bpc_format_display_rgb_only), + KUNIT_CASE(drm_test_check_output_bpc_format_driver_8bpc_only), + KUNIT_CASE(drm_test_check_output_bpc_format_driver_rgb_only), 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), /* * TODO: We should have tests to check that a change in the diff --git a/drivers/gpu/drm/tests/drm_kunit_edid.h b/drivers/gpu/drm/tests/drm_kunit_edid.h index ed051d356d5e..cda410440aca 100644 --- a/drivers/gpu/drm/tests/drm_kunit_edid.h +++ b/drivers/gpu/drm/tests/drm_kunit_edid.h @@ -1,8 +1,66 @@ #ifndef DRM_KUNIT_EDID_H_ #define DRM_KUNIT_EDID_H_ +/* + * edid-decode (hex): + * + * 00 ff ff ff ff ff ff 00 31 d8 2a 00 00 00 00 00 + * 00 21 01 03 81 a0 5a 78 0a 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 01 01 01 01 01 01 01 01 01 01 + * 01 01 01 01 01 01 02 3a 80 18 71 38 2d 40 58 2c + * 45 00 40 84 63 00 00 1e 00 00 00 fc 00 54 65 73 + * 74 20 45 44 49 44 0a 20 20 20 00 00 00 fd 00 32 + * 46 1e 46 0f 00 0a 20 20 20 20 20 20 00 00 00 10 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ab + * + * ---------------- + * + * Block 0, Base EDID: + * EDID Structure Version & Revision: 1.3 + * Vendor & Product Identification: + * Manufacturer: LNX + * Model: 42 + * Made in: 2023 + * Basic Display Parameters & Features: + * Digital display + * DFP 1.x compatible TMDS + * Maximum image size: 160 cm x 90 cm + * Gamma: 2.20 + * RGB color display + * First detailed timing is the preferred timing + * Color Characteristics: + * Red : 0.0000, 0.0000 + * Green: 0.0000, 0.0000 + * Blue : 0.0000, 0.0000 + * White: 0.0000, 0.0000 + * Established Timings I & II: none + * Standard Timings: none + * Detailed Timing Descriptors: + * DTD 1: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz (1600 mm x 900 mm) + * Hfront 88 Hsync 44 Hback 148 Hpol P + * Vfront 4 Vsync 5 Vback 36 Vpol P + * Display Product Name: 'Test EDID' + * Display Range Limits: + * Monitor ranges (GTF): 50-70 Hz V, 30-70 kHz H, max dotclock 150 MHz + * Dummy Descriptor: + * Checksum: 0xab + */ +static const unsigned char test_edid_dvi_1080p[] = { + 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x31, 0xd8, 0x2a, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x21, 0x01, 0x03, 0x81, 0xa0, 0x5a, 0x78, + 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x3a, 0x80, 0x18, 0x71, 0x38, + 0x2d, 0x40, 0x58, 0x2c, 0x45, 0x00, 0x40, 0x84, 0x63, 0x00, 0x00, 0x1e, + 0x00, 0x00, 0x00, 0xfc, 0x00, 0x54, 0x65, 0x73, 0x74, 0x20, 0x45, 0x44, + 0x49, 0x44, 0x0a, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x32, + 0x46, 0x1e, 0x46, 0x0f, 0x00, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xab +}; + /* * edid-decode (hex): * * 00 ff ff ff ff ff ff 00 31 d8 2a 00 00 00 00 00 * 00 21 01 03 81 a0 5a 78 02 00 00 00 00 00 00 00 @@ -101,10 +159,112 @@ static const unsigned char test_edid_hdmi_1080p_rgb_max_200mhz[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xd0 }; +/* + * edid-decode (hex): + * + * 00 ff ff ff ff ff ff 00 31 d8 2a 00 00 00 00 00 + * 00 21 01 03 81 a0 5a 78 02 00 00 00 00 00 00 00 + * 00 00 00 20 00 00 01 01 01 01 01 01 01 01 01 01 + * 01 01 01 01 01 01 02 3a 80 18 71 38 2d 40 58 2c + * 45 00 40 84 63 00 00 1e 00 00 00 fc 00 54 65 73 + * 74 20 45 44 49 44 0a 20 20 20 00 00 00 fd 00 32 + * 46 1e 46 0f 00 0a 20 20 20 20 20 20 00 00 00 10 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 92 + * + * 02 03 1b 81 e3 05 00 20 41 10 e2 00 4a 6d 03 0c + * 00 12 34 00 28 20 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 d0 + * + * ---------------- + * + * Block 0, Base EDID: + * EDID Structure Version & Revision: 1.3 + * Vendor & Product Identification: + * Manufacturer: LNX + * Model: 42 + * Made in: 2023 + * Basic Display Parameters & Features: + * Digital display + * DFP 1.x compatible TMDS + * Maximum image size: 160 cm x 90 cm + * Gamma: 2.20 + * Monochrome or grayscale display + * First detailed timing is the preferred timing + * Color Characteristics: + * Red : 0.0000, 0.0000 + * Green: 0.0000, 0.0000 + * Blue : 0.0000, 0.0000 + * White: 0.0000, 0.0000 + * Established Timings I & II: + * DMT 0x04: 640x480 59.940476 Hz 4:3 31.469 kHz 25.175000 MHz + * Standard Timings: none + * Detailed Timing Descriptors: + * DTD 1: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz (1600 mm x 900 mm) + * Hfront 88 Hsync 44 Hback 148 Hpol P + * Vfront 4 Vsync 5 Vback 36 Vpol P + * Display Product Name: 'Test EDID' + * Display Range Limits: + * Monitor ranges (GTF): 50-70 Hz V, 30-70 kHz H, max dotclock 150 MHz + * Dummy Descriptor: + * Extension blocks: 1 + * Checksum: 0x92 + * + * ---------------- + * + * Block 1, CTA-861 Extension Block: + * Revision: 3 + * Underscans IT Video Formats by default + * Native detailed modes: 1 + * Colorimetry Data Block: + * sRGB + * Video Data Block: + * VIC 16: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz + * Video Capability Data Block: + * YCbCr quantization: No Data + * RGB quantization: Selectable (via AVI Q) + * PT scan behavior: No Data + * IT scan behavior: Always Underscanned + * CE scan behavior: Always Underscanned + * Vendor-Specific Data Block (HDMI), OUI 00-0C-03: + * Source physical address: 1.2.3.4 + * Maximum TMDS clock: 340 MHz + * Extended HDMI video details: + * Checksum: 0xd0 Unused space in Extension Block: 100 bytes + */ +static const unsigned char test_edid_hdmi_1080p_rgb_max_340mhz[] = { + 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x31, 0xd8, 0x2a, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x21, 0x01, 0x03, 0x81, 0xa0, 0x5a, 0x78, + 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, + 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x3a, 0x80, 0x18, 0x71, 0x38, + 0x2d, 0x40, 0x58, 0x2c, 0x45, 0x00, 0x40, 0x84, 0x63, 0x00, 0x00, 0x1e, + 0x00, 0x00, 0x00, 0xfc, 0x00, 0x54, 0x65, 0x73, 0x74, 0x20, 0x45, 0x44, + 0x49, 0x44, 0x0a, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x32, + 0x46, 0x00, 0x00, 0xc4, 0x00, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x41, 0x02, 0x03, 0x1b, 0x81, + 0xe3, 0x05, 0x00, 0x20, 0x41, 0x10, 0xe2, 0x00, 0x4a, 0x6d, 0x03, 0x0c, + 0x00, 0x12, 0x34, 0x00, 0x44, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0xd0 +}; + /* * edid-decode (hex): * * 00 ff ff ff ff ff ff 00 31 d8 2a 00 00 00 00 00 * 00 21 01 03 81 a0 5a 78 1a 00 00 00 00 00 00 00 From patchwork Tue May 7 13:17:35 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13657030 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 D970AC25B4F for ; Tue, 7 May 2024 13:19:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References:Message-Id :MIME-Version:Subject:Date:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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Tue, 7 May 2024 13:18:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1715087911; bh=OXdKPgcJ5HVswpiop5nr7F1PKWLMxNplJzCoIVAkLBY=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=SdESGqgeauOKriL9gzySj7Ye8k4jD+heTy+rdUeLeQgoj867TRThiWOJC37i7pKH1 aJ8tLIiBsgNz6fBzEdaKb2PlRCErQ0oX7qxp65Nnz7BUPxpEyuu0xyp3/ZJkQjD6FB a9q2B+VqkL6LGp3spuyh54wdUvFMni6jsaJuZZ5NWDKkVl1I34MrVr1e6xMBaZMHfP cDGLvFE0RqTFxdGMAgnrsv6s6FGEsKbm0qg3v75HDl8JEUvvEC6NmU8NnIoOKqVnSw ocrzTdvW05SXT8uMao/eJaG+qzg/oH8nKUf03si5X55quKrAv6MT+CIezoT/koUZ40 OnwTaKLeqmylw== From: Maxime Ripard Date: Tue, 07 May 2024 15:17:35 +0200 Subject: [PATCH v13 17/28] drm/connector: hdmi: Add Broadcast RGB property MIME-Version: 1.0 Message-Id: <20240507-kms-hdmi-connector-state-v13-17-8fafc5efe8be@kernel.org> References: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> In-Reply-To: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Andy Yan Cc: Hans Verkuil , Sebastian Wick , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, Maxime Ripard , Dave Stevenson , Pekka Paalanen X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=14188; i=mripard@kernel.org; h=from:subject:message-id; bh=OXdKPgcJ5HVswpiop5nr7F1PKWLMxNplJzCoIVAkLBY=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDGlWmu9MNq1znRXXL7v43oLrrvdWsj2MrQu7pNzAp/SPj 89DZE9Yx1QWBmFOBlkxRZYnMmGnl7cvrnKwX/kDZg4rE8gQBi5OAZjIxZ+M9Rn/633UM90uTuN4 kC0WnlD2ZU/5POdFrpONr3yyqp5UvOSTWSafW00jq8Zf082Lk5bMZKwzfFXz9It/w9kLqhMy5vn +4ooR7xPla9nOPf/VhS1prAtE9jVxL/2uef9enTJj74LrkisA X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240507_061832_828895_8238ED13 X-CRM114-Status: GOOD ( 29.77 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The i915 driver has a property to force the RGB range of an HDMI output. The vc4 driver then implemented the same property with the same semantics. KWin has support for it, and a PR for mutter is also there to support it. Both drivers implementing the same property with the same semantics, plus the userspace having support for it, is proof enough that it's pretty much a de-facto standard now and we can provide helpers for it. Let's plumb it into the newly created HDMI connector. Reviewed-by: Dave Stevenson Acked-by: Pekka Paalanen Reviewed-by: Sebastian Wick Signed-off-by: Maxime Ripard --- Documentation/gpu/kms-properties.csv | 1 - drivers/gpu/drm/display/drm_hdmi_state_helper.c | 4 +- drivers/gpu/drm/drm_atomic.c | 2 + drivers/gpu/drm/drm_atomic_uapi.c | 4 ++ drivers/gpu/drm/drm_connector.c | 88 +++++++++++++++++++++++++ include/drm/drm_connector.h | 36 ++++++++++ 6 files changed, 133 insertions(+), 2 deletions(-) diff --git a/Documentation/gpu/kms-properties.csv b/Documentation/gpu/kms-properties.csv index 0f9590834829..caef14c532d4 100644 --- a/Documentation/gpu/kms-properties.csv +++ b/Documentation/gpu/kms-properties.csv @@ -15,11 +15,10 @@ Owner Module/Drivers,Group,Property Name,Type,Property Values,Object attached,De ,,“saturation”,RANGE,"Min=0, Max=100",Connector,TBD ,,“hue”,RANGE,"Min=0, Max=100",Connector,TBD ,Virtual GPU,“suggested X”,RANGE,"Min=0, Max=0xffffffff",Connector,property to suggest an X offset for a connector ,,“suggested Y”,RANGE,"Min=0, Max=0xffffffff",Connector,property to suggest an Y offset for a connector ,Optional,"""aspect ratio""",ENUM,"{ ""None"", ""4:3"", ""16:9"" }",Connector,TDB -i915,Generic,"""Broadcast RGB""",ENUM,"{ ""Automatic"", ""Full"", ""Limited 16:235"" }",Connector,"When this property is set to Limited 16:235 and CTM is set, the hardware will be programmed with the result of the multiplication of CTM by the limited range matrix to ensure the pixels normally in the range 0..1.0 are remapped to the range 16/255..235/255." ,,“audio”,ENUM,"{ ""force-dvi"", ""off"", ""auto"", ""on"" }",Connector,TBD ,SDVO-TV,“mode”,ENUM,"{ ""NTSC_M"", ""NTSC_J"", ""NTSC_443"", ""PAL_B"" } etc.",Connector,TBD ,,"""left_margin""",RANGE,"Min=0, Max= SDVO dependent",Connector,TBD ,,"""right_margin""",RANGE,"Min=0, Max= SDVO dependent",Connector,TBD ,,"""top_margin""",RANGE,"Min=0, Max= SDVO dependent",Connector,TBD diff --git a/drivers/gpu/drm/display/drm_hdmi_state_helper.c b/drivers/gpu/drm/display/drm_hdmi_state_helper.c index f20dcfecb6b8..f038f567ab43 100644 --- a/drivers/gpu/drm/display/drm_hdmi_state_helper.c +++ b/drivers/gpu/drm/display/drm_hdmi_state_helper.c @@ -23,10 +23,11 @@ void __drm_atomic_helper_connector_hdmi_reset(struct drm_connector *connector, { unsigned int max_bpc = connector->max_bpc; new_conn_state->max_bpc = max_bpc; new_conn_state->max_requested_bpc = max_bpc; + new_conn_state->hdmi.broadcast_rgb = DRM_HDMI_BROADCAST_RGB_AUTO; } EXPORT_SYMBOL(__drm_atomic_helper_connector_hdmi_reset); static const struct drm_display_mode * connector_state_get_mode(const struct drm_connector_state *conn_state) @@ -312,11 +313,12 @@ int drm_atomic_helper_connector_hdmi_check(struct drm_connector *connector, ret = hdmi_compute_config(connector, new_conn_state, mode); if (ret) return ret; - if (old_conn_state->hdmi.output_bpc != new_conn_state->hdmi.output_bpc || + if (old_conn_state->hdmi.broadcast_rgb != new_conn_state->hdmi.broadcast_rgb || + old_conn_state->hdmi.output_bpc != new_conn_state->hdmi.output_bpc || old_conn_state->hdmi.output_format != new_conn_state->hdmi.output_format) { struct drm_crtc *crtc = new_conn_state->crtc; struct drm_crtc_state *crtc_state; crtc_state = drm_atomic_get_crtc_state(state, crtc); diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index 26f9e525c0a0..3e57d98d8418 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -1143,10 +1143,12 @@ static void drm_atomic_connector_print_state(struct drm_printer *p, drm_printf(p, "\tmax_requested_bpc=%d\n", state->max_requested_bpc); drm_printf(p, "\tcolorspace=%s\n", drm_get_colorspace_name(state->colorspace)); if (connector->connector_type == DRM_MODE_CONNECTOR_HDMIA || connector->connector_type == DRM_MODE_CONNECTOR_HDMIB) { + drm_printf(p, "\tbroadcast_rgb=%s\n", + drm_hdmi_connector_get_broadcast_rgb_name(state->hdmi.broadcast_rgb)); drm_printf(p, "\toutput_bpc=%u\n", state->hdmi.output_bpc); drm_printf(p, "\toutput_format=%s\n", drm_hdmi_connector_get_output_format_name(state->hdmi.output_format)); drm_printf(p, "\ttmds_char_rate=%llu\n", state->hdmi.tmds_char_rate); } diff --git a/drivers/gpu/drm/drm_atomic_uapi.c b/drivers/gpu/drm/drm_atomic_uapi.c index fc16fddee5c5..22bbb2d83e30 100644 --- a/drivers/gpu/drm/drm_atomic_uapi.c +++ b/drivers/gpu/drm/drm_atomic_uapi.c @@ -774,10 +774,12 @@ static int drm_atomic_connector_set_property(struct drm_connector *connector, fence_ptr); } else if (property == connector->max_bpc_property) { state->max_requested_bpc = val; } else if (property == connector->privacy_screen_sw_state_property) { state->privacy_screen_sw_state = val; + } else if (property == connector->broadcast_rgb_property) { + state->hdmi.broadcast_rgb = val; } else if (connector->funcs->atomic_set_property) { return connector->funcs->atomic_set_property(connector, state, property, val); } else { drm_dbg_atomic(connector->dev, @@ -857,10 +859,12 @@ drm_atomic_connector_get_property(struct drm_connector *connector, *val = 0; } else if (property == connector->max_bpc_property) { *val = state->max_requested_bpc; } else if (property == connector->privacy_screen_sw_state_property) { *val = state->privacy_screen_sw_state; + } else if (property == connector->broadcast_rgb_property) { + *val = state->hdmi.broadcast_rgb; } else if (connector->funcs->atomic_get_property) { return connector->funcs->atomic_get_property(connector, state, property, val); } else { drm_dbg_atomic(dev, diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index 555eac20e5a4..bdd3361ccc73 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -1210,10 +1210,33 @@ static const u32 dp_colorspaces = BIT(DRM_MODE_COLORIMETRY_SYCC_601) | BIT(DRM_MODE_COLORIMETRY_OPYCC_601) | BIT(DRM_MODE_COLORIMETRY_BT2020_CYCC) | BIT(DRM_MODE_COLORIMETRY_BT2020_YCC); +static const struct drm_prop_enum_list broadcast_rgb_names[] = { + { DRM_HDMI_BROADCAST_RGB_AUTO, "Automatic" }, + { DRM_HDMI_BROADCAST_RGB_FULL, "Full" }, + { DRM_HDMI_BROADCAST_RGB_LIMITED, "Limited 16:235" }, +}; + +/* + * drm_hdmi_connector_get_broadcast_rgb_name - Return a string for HDMI connector RGB broadcast selection + * @broadcast_rgb: Broadcast RGB selection to compute name of + * + * Returns: the name of the Broadcast RGB selection, or NULL if the type + * is not valid. + */ +const char * +drm_hdmi_connector_get_broadcast_rgb_name(enum drm_hdmi_broadcast_rgb broadcast_rgb) +{ + if (broadcast_rgb >= ARRAY_SIZE(broadcast_rgb_names)) + return NULL; + + return broadcast_rgb_names[broadcast_rgb].name; +} +EXPORT_SYMBOL(drm_hdmi_connector_get_broadcast_rgb_name); + static const char * const output_format_str[] = { [HDMI_COLORSPACE_RGB] = "RGB", [HDMI_COLORSPACE_YUV420] = "YUV 4:2:0", [HDMI_COLORSPACE_YUV422] = "YUV 4:2:2", [HDMI_COLORSPACE_YUV444] = "YUV 4:4:4", @@ -1706,10 +1729,42 @@ void drm_connector_attach_dp_subconnector_property(struct drm_connector *connect EXPORT_SYMBOL(drm_connector_attach_dp_subconnector_property); /** * DOC: HDMI connector properties * + * Broadcast RGB (HDMI specific) + * Indicates the Quantization Range (Full vs Limited) used. The color + * processing pipeline will be adjusted to match the value of the + * property, and the Infoframes will be generated and sent accordingly. + * + * This property is only relevant if the HDMI output format is RGB. If + * it's one of the YCbCr variant, it will be ignored. + * + * The CRTC attached to the connector must be configured by user-space to + * always produce full-range pixels. + * + * The value of this property can be one of the following: + * + * Automatic: + * The quantization range is selected automatically based on the + * mode according to the HDMI specifications (HDMI 1.4b - Section + * 6.6 - Video Quantization Ranges). + * + * Full: + * Full quantization range is forced. + * + * Limited 16:235: + * Limited quantization range is forced. Unlike the name suggests, + * this works for any number of bits-per-component. + * + * Property values other than Automatic can result in colors being off (if + * limited is selected but the display expects full), or a black screen + * (if full is selected but the display expects limited). + * + * Drivers can set up this property by calling + * drm_connector_attach_broadcast_rgb_property(). + * * content type (HDMI specific): * Indicates content type setting to be used in HDMI infoframes to indicate * content type for the external device, so that it adjusts its display * settings accordingly. * @@ -2568,10 +2623,43 @@ int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *conn return 0; } EXPORT_SYMBOL(drm_connector_attach_hdr_output_metadata_property); +/** + * drm_connector_attach_broadcast_rgb_property - attach "Broadcast RGB" property + * @connector: connector to attach the property on. + * + * This is used to add support for forcing the RGB range on a connector + * + * Returns: + * Zero on success, negative errno on failure. + */ +int drm_connector_attach_broadcast_rgb_property(struct drm_connector *connector) +{ + struct drm_device *dev = connector->dev; + struct drm_property *prop; + + prop = connector->broadcast_rgb_property; + if (!prop) { + prop = drm_property_create_enum(dev, DRM_MODE_PROP_ENUM, + "Broadcast RGB", + broadcast_rgb_names, + ARRAY_SIZE(broadcast_rgb_names)); + if (!prop) + return -EINVAL; + + connector->broadcast_rgb_property = prop; + } + + drm_object_attach_property(&connector->base, prop, + DRM_HDMI_BROADCAST_RGB_AUTO); + + return 0; +} +EXPORT_SYMBOL(drm_connector_attach_broadcast_rgb_property); + /** * drm_connector_attach_colorspace_property - attach "Colorspace" property * @connector: connector to attach the property on. * * This is used to allow the userspace to signal the output colorspace diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index 3c0b6694074f..a40eaf3a8ce4 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -367,10 +367,33 @@ enum drm_panel_orientation { DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP, DRM_MODE_PANEL_ORIENTATION_LEFT_UP, DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, }; +/** + * enum drm_hdmi_broadcast_rgb - Broadcast RGB Selection for an HDMI @drm_connector + */ +enum drm_hdmi_broadcast_rgb { + /** + * @DRM_HDMI_BROADCAST_RGB_AUTO: The RGB range is selected + * automatically based on the mode. + */ + DRM_HDMI_BROADCAST_RGB_AUTO, + + /** + * @DRM_HDMI_BROADCAST_RGB_FULL: Full range RGB is forced. + */ + DRM_HDMI_BROADCAST_RGB_FULL, + + /** + * @DRM_HDMI_BROADCAST_RGB_LIMITED: Limited range RGB is forced. + */ + DRM_HDMI_BROADCAST_RGB_LIMITED, +}; + +const char * +drm_hdmi_connector_get_broadcast_rgb_name(enum drm_hdmi_broadcast_rgb broadcast_rgb); const char * drm_hdmi_connector_get_output_format_name(enum hdmi_colorspace fmt); /** * struct drm_monitor_range_info - Panel's Monitor range in EDID for @@ -1039,10 +1062,16 @@ struct drm_connector_state { /** * @hdmi: HDMI-related variable and properties. Filled by * @drm_atomic_helper_connector_hdmi_check(). */ struct { + /** + * @broadcast_rgb: Connector property to pass the + * Broadcast RGB selection value. + */ + enum drm_hdmi_broadcast_rgb broadcast_rgb; + /** * @output_bpc: Bits per color channel to output. */ unsigned int output_bpc; @@ -1751,10 +1780,16 @@ struct drm_connector { * @privacy_screen_hw_state_property: Optional atomic property for the * connector to report the actual integrated privacy screen state. */ struct drm_property *privacy_screen_hw_state_property; + /** + * @broadcast_rgb_property: Connector property to set the + * Broadcast RGB selection to output with. + */ + struct drm_property *broadcast_rgb_property; + #define DRM_CONNECTOR_POLL_HPD (1 << 0) #define DRM_CONNECTOR_POLL_CONNECT (1 << 1) #define DRM_CONNECTOR_POLL_DISCONNECT (1 << 2) /** @@ -2090,10 +2125,11 @@ int drm_mode_create_scaling_mode_property(struct drm_device *dev); int drm_connector_attach_content_type_property(struct drm_connector *dev); int drm_connector_attach_scaling_mode_property(struct drm_connector *connector, u32 scaling_mode_mask); int drm_connector_attach_vrr_capable_property( struct drm_connector *connector); +int drm_connector_attach_broadcast_rgb_property(struct drm_connector *connector); int drm_connector_attach_colorspace_property(struct drm_connector *connector); int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector); bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state, struct drm_connector_state *new_state); int drm_mode_create_aspect_ratio_property(struct drm_device *dev); From patchwork Tue May 7 13:17:36 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13657223 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 5DA3BC10F1A for ; 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a=openpgp-sha256; l=13780; i=mripard@kernel.org; h=from:subject:message-id; bh=JXa+IVsW9prpWJbHiohOgnPWpZAy+pZGq51p0wD7ywg=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDGlWmu/3zq6adLrqqsTTGbXV+rm20wXDX37OMK9dU7pr+ 407fNFPO6ayMAhzMsiKKbI8kQk7vbx9cZWD/cofMHNYmUCGMHBxCsBEduYzNjwwtLfQc/leum9d LdOedalLs44Hxn34WTVP9HnMo5vxP4RYPK/JsLW+SVmvYLJahaNsNmPD/sjDTHG7H36qSy16JdH IU8hU13xhfbCckNLXaXxn3rwuZ1a6tWFyeVq/18W7D7rnve4HAA== X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240507_061836_010966_84E7C49D X-CRM114-Status: GOOD ( 17.03 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This had a bunch of kunit tests to make sure our code to handle the Broadcast RGB property behaves properly. This requires bringing a bit of infrastructure to create mock HDMI connectors, with custom EDIDs. Reviewed-by: Dave Stevenson Signed-off-by: Maxime Ripard --- drivers/gpu/drm/tests/drm_connector_test.c | 116 ++++++++++++++++ drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c | 151 +++++++++++++++++++++ 2 files changed, 267 insertions(+) diff --git a/drivers/gpu/drm/tests/drm_connector_test.c b/drivers/gpu/drm/tests/drm_connector_test.c index 34d96f7fbb25..672b74bc9e23 100644 --- a/drivers/gpu/drm/tests/drm_connector_test.c +++ b/drivers/gpu/drm/tests/drm_connector_test.c @@ -564,10 +564,67 @@ static struct kunit_case drm_get_tv_mode_from_name_tests[] = { static struct kunit_suite drm_get_tv_mode_from_name_test_suite = { .name = "drm_get_tv_mode_from_name", .test_cases = drm_get_tv_mode_from_name_tests, }; +struct drm_hdmi_connector_get_broadcast_rgb_name_test { + unsigned int kind; + const char *expected_name; +}; + +#define BROADCAST_RGB_TEST(_kind, _name) \ + { \ + .kind = _kind, \ + .expected_name = _name, \ + } + +static void drm_test_drm_hdmi_connector_get_broadcast_rgb_name(struct kunit *test) +{ + const struct drm_hdmi_connector_get_broadcast_rgb_name_test *params = + test->param_value; + + KUNIT_EXPECT_STREQ(test, + drm_hdmi_connector_get_broadcast_rgb_name(params->kind), + params->expected_name); +} + +static const +struct drm_hdmi_connector_get_broadcast_rgb_name_test +drm_hdmi_connector_get_broadcast_rgb_name_valid_tests[] = { + BROADCAST_RGB_TEST(DRM_HDMI_BROADCAST_RGB_AUTO, "Automatic"), + BROADCAST_RGB_TEST(DRM_HDMI_BROADCAST_RGB_FULL, "Full"), + BROADCAST_RGB_TEST(DRM_HDMI_BROADCAST_RGB_LIMITED, "Limited 16:235"), +}; + +static void +drm_hdmi_connector_get_broadcast_rgb_name_valid_desc(const struct drm_hdmi_connector_get_broadcast_rgb_name_test *t, + char *desc) +{ + sprintf(desc, "%s", t->expected_name); +} + +KUNIT_ARRAY_PARAM(drm_hdmi_connector_get_broadcast_rgb_name_valid, + drm_hdmi_connector_get_broadcast_rgb_name_valid_tests, + drm_hdmi_connector_get_broadcast_rgb_name_valid_desc); + +static void drm_test_drm_hdmi_connector_get_broadcast_rgb_name_invalid(struct kunit *test) +{ + KUNIT_EXPECT_NULL(test, drm_hdmi_connector_get_broadcast_rgb_name(3)); +}; + +static struct kunit_case drm_hdmi_connector_get_broadcast_rgb_name_tests[] = { + KUNIT_CASE_PARAM(drm_test_drm_hdmi_connector_get_broadcast_rgb_name, + drm_hdmi_connector_get_broadcast_rgb_name_valid_gen_params), + KUNIT_CASE(drm_test_drm_hdmi_connector_get_broadcast_rgb_name_invalid), + { } +}; + +static struct kunit_suite drm_hdmi_connector_get_broadcast_rgb_name_test_suite = { + .name = "drm_hdmi_connector_get_broadcast_rgb_name", + .test_cases = drm_hdmi_connector_get_broadcast_rgb_name_tests, +}; + struct drm_hdmi_connector_get_output_format_name_test { unsigned int kind; const char *expected_name; }; @@ -622,10 +679,67 @@ static struct kunit_case drm_hdmi_connector_get_output_format_name_tests[] = { static struct kunit_suite drm_hdmi_connector_get_output_format_name_test_suite = { .name = "drm_hdmi_connector_get_output_format_name", .test_cases = drm_hdmi_connector_get_output_format_name_tests, }; +static void drm_test_drm_connector_attach_broadcast_rgb_property(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + struct drm_connector *connector = &priv->connector; + struct drm_property *prop; + int ret; + + ret = drmm_connector_init(&priv->drm, connector, + &dummy_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc); + KUNIT_ASSERT_EQ(test, ret, 0); + + ret = drm_connector_attach_broadcast_rgb_property(connector); + KUNIT_ASSERT_EQ(test, ret, 0); + + prop = connector->broadcast_rgb_property; + KUNIT_ASSERT_NOT_NULL(test, prop); + KUNIT_EXPECT_NOT_NULL(test, drm_mode_obj_find_prop_id(&connector->base, prop->base.id)); +} + +static void drm_test_drm_connector_attach_broadcast_rgb_property_hdmi_connector(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + struct drm_connector *connector = &priv->connector; + struct drm_property *prop; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, connector, + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_EQ(test, ret, 0); + + ret = drm_connector_attach_broadcast_rgb_property(connector); + KUNIT_ASSERT_EQ(test, ret, 0); + + prop = connector->broadcast_rgb_property; + KUNIT_ASSERT_NOT_NULL(test, prop); + KUNIT_EXPECT_NOT_NULL(test, drm_mode_obj_find_prop_id(&connector->base, prop->base.id)); +} + +static struct kunit_case drm_connector_attach_broadcast_rgb_property_tests[] = { + KUNIT_CASE(drm_test_drm_connector_attach_broadcast_rgb_property), + KUNIT_CASE(drm_test_drm_connector_attach_broadcast_rgb_property_hdmi_connector), + { } +}; + +static struct kunit_suite drm_connector_attach_broadcast_rgb_property_test_suite = { + .name = "drm_connector_attach_broadcast_rgb_property", + .init = drm_test_connector_init, + .test_cases = drm_connector_attach_broadcast_rgb_property_tests, +}; + /* * Test that for a given mode, with 8bpc and an RGB output the TMDS * character rate is equal to the mode pixel clock. */ static void drm_test_drm_hdmi_compute_mode_clock_rgb(struct kunit *test) @@ -916,12 +1030,14 @@ static struct kunit_suite drm_hdmi_compute_mode_clock_test_suite = { }; kunit_test_suites( &drmm_connector_hdmi_init_test_suite, &drmm_connector_init_test_suite, + &drm_connector_attach_broadcast_rgb_property_test_suite, &drm_get_tv_mode_from_name_test_suite, &drm_hdmi_compute_mode_clock_test_suite, + &drm_hdmi_connector_get_broadcast_rgb_name_test_suite, &drm_hdmi_connector_get_output_format_name_test_suite ); MODULE_AUTHOR("Maxime Ripard "); MODULE_LICENSE("GPL"); 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 968204781928..ff9a882201eb 100644 --- a/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c +++ b/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c @@ -225,10 +225,138 @@ drm_atomic_helper_connector_hdmi_init(struct kunit *test, KUNIT_ASSERT_EQ(test, ret, 0); return priv; } +/* + * Test that if we change the RGB quantization property to a different + * value, we trigger a mode change on the connector's CRTC, which will + * in turn disable/enable the connector. + */ +static void drm_test_check_broadcast_rgb_crtc_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 *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_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_ASSERT_NOT_NULL(test, priv); + + ctx = drm_kunit_helper_acquire_ctx_alloc(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); + + conn = &priv->connector; + 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_conn_state->hdmi.broadcast_rgb = DRM_HDMI_BROADCAST_RGB_FULL; + + KUNIT_ASSERT_NE(test, + old_conn_state->hdmi.broadcast_rgb, + new_conn_state->hdmi.broadcast_rgb); + + ret = drm_atomic_check_only(state); + KUNIT_ASSERT_EQ(test, ret, 0); + + new_conn_state = drm_atomic_get_new_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, new_conn_state); + KUNIT_EXPECT_EQ(test, new_conn_state->hdmi.broadcast_rgb, DRM_HDMI_BROADCAST_RGB_FULL); + + crtc_state = drm_atomic_get_new_crtc_state(state, crtc); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc_state); + KUNIT_EXPECT_TRUE(test, crtc_state->mode_changed); +} + +/* + * Test that if we set the RGB quantization property to the same value, + * we don't trigger a mode change on the connector's CRTC and leave the + * connector unaffected. + */ +static void drm_test_check_broadcast_rgb_crtc_mode_not_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 *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_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_ASSERT_NOT_NULL(test, priv); + + ctx = drm_kunit_helper_acquire_ctx_alloc(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); + + conn = &priv->connector; + 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_conn_state->hdmi.broadcast_rgb = old_conn_state->hdmi.broadcast_rgb; + + ret = drm_atomic_check_only(state); + KUNIT_ASSERT_EQ(test, ret, 0); + + old_conn_state = drm_atomic_get_old_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, old_conn_state); + + new_conn_state = drm_atomic_get_new_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, new_conn_state); + + KUNIT_EXPECT_EQ(test, + old_conn_state->hdmi.broadcast_rgb, + new_conn_state->hdmi.broadcast_rgb); + + crtc_state = drm_atomic_get_new_crtc_state(state, crtc); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc_state); + KUNIT_EXPECT_FALSE(test, crtc_state->mode_changed); +} + /* * Test that if we change the maximum bpc property to a different value, * we trigger a mode change on the connector's CRTC, which will in turn * disable/enable the connector. */ @@ -1064,10 +1192,12 @@ static void drm_test_check_output_bpc_format_display_8bpc_only(struct kunit *tes KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 8); KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); } static struct kunit_case drm_atomic_helper_connector_hdmi_check_tests[] = { + KUNIT_CASE(drm_test_check_broadcast_rgb_crtc_mode_changed), + KUNIT_CASE(drm_test_check_broadcast_rgb_crtc_mode_not_changed), KUNIT_CASE(drm_test_check_hdmi_funcs_reject_rate), KUNIT_CASE(drm_test_check_max_tmds_rate_bpc_fallback), KUNIT_CASE(drm_test_check_max_tmds_rate_format_fallback), KUNIT_CASE(drm_test_check_output_bpc_crtc_mode_changed), KUNIT_CASE(drm_test_check_output_bpc_crtc_mode_not_changed), @@ -1095,10 +1225,30 @@ static struct kunit_case drm_atomic_helper_connector_hdmi_check_tests[] = { static struct kunit_suite drm_atomic_helper_connector_hdmi_check_test_suite = { .name = "drm_atomic_helper_connector_hdmi_check", .test_cases = drm_atomic_helper_connector_hdmi_check_tests, }; +/* + * Test that the value of the Broadcast RGB property out of reset is set + * to auto. + */ +static void drm_test_check_broadcast_rgb_value(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_connector_state *conn_state; + struct drm_connector *conn; + + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + conn_state = conn->state; + KUNIT_EXPECT_EQ(test, conn_state->hdmi.broadcast_rgb, DRM_HDMI_BROADCAST_RGB_AUTO); +} + /* * Test that if the connector was initialised with a maximum bpc of 8, * the value of the max_bpc and max_requested_bpc properties out of * reset are also set to 8, and output_bpc is set to 0 and will be * filled at atomic_check time. @@ -1212,10 +1362,11 @@ static void drm_test_check_tmds_char_value(struct kunit *test) conn_state = conn->state; KUNIT_EXPECT_EQ(test, conn_state->hdmi.tmds_char_rate, 0); } static struct kunit_case drm_atomic_helper_connector_hdmi_reset_tests[] = { + KUNIT_CASE(drm_test_check_broadcast_rgb_value), KUNIT_CASE(drm_test_check_bpc_8_value), KUNIT_CASE(drm_test_check_bpc_10_value), KUNIT_CASE(drm_test_check_bpc_12_value), KUNIT_CASE(drm_test_check_format_value), KUNIT_CASE(drm_test_check_tmds_char_value), From patchwork Tue May 7 13:17:37 2024 Content-Type: text/plain; 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b=p1MtUNP3alS+Mw2uXOmD69n8VQrwqY1+W7h/Q9CXVoRurF6zE+tdPsneoH97HjzNy b1BcASFzArqitVDPaDUmU1PNPPoA/EPN2MgFLbcwMzndkIzxtUewhbpi+MkqgjrD7Z e/EnQ/aot22pwAveTuUdQXB1R+EYEPuv8lNNdEyoj69j056FCQeD1+biz+ZGf4sZn/ salazQz7IfQcwnhiEjgZpYjEn7ETSYcd5vkygYsbz+BV313+gos/R6uvomRZNx6koX Y9oYO4KXIFSHo/Wr9cBagRys++jDv8bcjQ3feBh059EgLVuj+h7EeyzaUVKzvG0l1A jTKg4I34ctYvg== From: Maxime Ripard Date: Tue, 07 May 2024 15:17:37 +0200 Subject: [PATCH v13 19/28] drm/connector: hdmi: Add RGB Quantization Range to the connector state MIME-Version: 1.0 Message-Id: <20240507-kms-hdmi-connector-state-v13-19-8fafc5efe8be@kernel.org> References: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> In-Reply-To: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Andy Yan Cc: Hans Verkuil , Sebastian Wick , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, Maxime Ripard , Dave Stevenson X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; 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Let's expose that in the HDMI connector state so drivers can just use that value. Reviewed-by: Dave Stevenson Signed-off-by: Maxime Ripard --- drivers/gpu/drm/display/drm_hdmi_state_helper.c | 29 +++++++++++++++++++++++++ drivers/gpu/drm/drm_atomic.c | 1 + include/drm/drm_connector.h | 6 +++++ 3 files changed, 36 insertions(+) diff --git a/drivers/gpu/drm/display/drm_hdmi_state_helper.c b/drivers/gpu/drm/display/drm_hdmi_state_helper.c index f038f567ab43..c3a10f9f7ecd 100644 --- a/drivers/gpu/drm/display/drm_hdmi_state_helper.c +++ b/drivers/gpu/drm/display/drm_hdmi_state_helper.c @@ -49,10 +49,37 @@ connector_state_get_mode(const struct drm_connector_state *conn_state) return NULL; return &crtc_state->mode; } +static bool hdmi_is_limited_range(const struct drm_connector *connector, + const struct drm_connector_state *conn_state) +{ + const struct drm_display_info *info = &connector->display_info; + const struct drm_display_mode *mode = + connector_state_get_mode(conn_state); + + /* + * The Broadcast RGB property only applies to RGB format, and + * i915 just assumes limited range for YCbCr output, so let's + * just do the same. + */ + if (conn_state->hdmi.output_format != HDMI_COLORSPACE_RGB) + return true; + + if (conn_state->hdmi.broadcast_rgb == DRM_HDMI_BROADCAST_RGB_FULL) + return false; + + if (conn_state->hdmi.broadcast_rgb == DRM_HDMI_BROADCAST_RGB_LIMITED) + return true; + + if (!info->is_hdmi) + return false; + + return drm_default_rgb_quant_range(mode) == HDMI_QUANTIZATION_RANGE_LIMITED; +} + static bool sink_supports_format_bpc(const struct drm_connector *connector, const struct drm_display_info *info, const struct drm_display_mode *mode, unsigned int format, unsigned int bpc) @@ -309,10 +336,12 @@ int drm_atomic_helper_connector_hdmi_check(struct drm_connector *connector, drm_atomic_get_new_connector_state(state, connector); const struct drm_display_mode *mode = connector_state_get_mode(new_conn_state); int ret; + new_conn_state->hdmi.is_limited_range = hdmi_is_limited_range(connector, new_conn_state); + ret = hdmi_compute_config(connector, new_conn_state, mode); if (ret) return ret; if (old_conn_state->hdmi.broadcast_rgb != new_conn_state->hdmi.broadcast_rgb || diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index 3e57d98d8418..07b4b394e3bf 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -1145,10 +1145,11 @@ static void drm_atomic_connector_print_state(struct drm_printer *p, if (connector->connector_type == DRM_MODE_CONNECTOR_HDMIA || connector->connector_type == DRM_MODE_CONNECTOR_HDMIB) { drm_printf(p, "\tbroadcast_rgb=%s\n", drm_hdmi_connector_get_broadcast_rgb_name(state->hdmi.broadcast_rgb)); + drm_printf(p, "\tis_limited_range=%c\n", state->hdmi.is_limited_range ? 'y' : 'n'); drm_printf(p, "\toutput_bpc=%u\n", state->hdmi.output_bpc); drm_printf(p, "\toutput_format=%s\n", drm_hdmi_connector_get_output_format_name(state->hdmi.output_format)); drm_printf(p, "\ttmds_char_rate=%llu\n", state->hdmi.tmds_char_rate); } diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index a40eaf3a8ce4..1fca26d51218 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -1068,10 +1068,16 @@ struct drm_connector_state { * @broadcast_rgb: Connector property to pass the * Broadcast RGB selection value. */ enum drm_hdmi_broadcast_rgb broadcast_rgb; + /** + * @is_full_range: Is the output supposed to use a full + * RGB Quantization Range or not? + */ + bool is_limited_range; + /** * @output_bpc: Bits per color channel to output. */ unsigned int output_bpc; From patchwork Tue May 7 13:17:38 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13657036 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 2B95BC10F1A for ; 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Tue, 07 May 2024 13:20:26 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1s4KiO-0000000B9h7-3Dfg; Tue, 07 May 2024 13:18:49 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 90F6061781; Tue, 7 May 2024 13:18:40 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CE793C3277B; Tue, 7 May 2024 13:18:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1715087920; bh=4UDKZ6nygYd0+f/OCQl3rMpozy+bVXiy9uf4ObBUP1s=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=JyXAiHs/cB2x+m0NRXzBlHQ7ZfBNg3UK8x+CZA0ZNAwwe9nmdf2Y/otelZbnOuocR DLjoxcdTdqhH0s8SH1aRmSGuzTrT4eTwrhqlvYAspUU8CL6H4S8ahjvWru+YYgSJbc YmsrAFNLma1Cok/YpCkvCybLl8Uslee8eC3poo4NDNpghlMjgvjl9C6MPr19wAFPmT 9cNRNWyhLNma3C2xkUmnQUFrRCf0KtxB+iz+1kGNmXbRsrkgVVRmMHluQ0qYAcgP/w jlBpzxSWdNply8IrQGsAo81jFJcCZTLx+WeEX/fYaw6/kbiq5yg7LJSYnT5gyKRNwR upOk1fxmnQE2w== From: Maxime Ripard Date: Tue, 07 May 2024 15:17:38 +0200 Subject: [PATCH v13 20/28] drm/tests: Add RGB Quantization tests MIME-Version: 1.0 Message-Id: <20240507-kms-hdmi-connector-state-v13-20-8fafc5efe8be@kernel.org> References: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> In-Reply-To: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Andy Yan Cc: Hans Verkuil , Sebastian Wick , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, Maxime Ripard , Dave Stevenson X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; 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Let's add some kunit tests to make sure it works as expected. Reviewed-by: Dave Stevenson Signed-off-by: Maxime Ripard --- drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c | 355 +++++++++++++++++++++ 1 file changed, 355 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 ff9a882201eb..da5c3d9a80bb 100644 --- a/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c +++ b/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c @@ -353,10 +353,354 @@ static void drm_test_check_broadcast_rgb_crtc_mode_not_changed(struct kunit *tes crtc_state = drm_atomic_get_new_crtc_state(state, crtc); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc_state); KUNIT_EXPECT_FALSE(test, crtc_state->mode_changed); } +/* + * Test that for an HDMI connector, with an HDMI monitor, if the + * Broadcast RGB property is set to auto with a mode that isn't the + * VIC-1 mode, we will get a limited RGB Quantization Range. + */ +static void drm_test_check_broadcast_rgb_auto_cea_mode(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx *ctx; + struct drm_connector_state *conn_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_atomic_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); + KUNIT_ASSERT_NE(test, drm_match_cea_mode(preferred), 1); + + 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); + + conn_state = drm_atomic_get_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + + KUNIT_ASSERT_EQ(test, + conn_state->hdmi.broadcast_rgb, + DRM_HDMI_BROADCAST_RGB_AUTO); + + ret = drm_atomic_check_only(state); + KUNIT_ASSERT_EQ(test, ret, 0); + + conn_state = drm_atomic_get_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + + KUNIT_EXPECT_TRUE(test, conn_state->hdmi.is_limited_range); +} + +/* + * Test that for an HDMI connector, with an HDMI monitor, if the + * Broadcast RGB property is set to auto with a VIC-1 mode, we will get + * a full RGB Quantization Range. + */ +static void drm_test_check_broadcast_rgb_auto_cea_mode_vic_1(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx *ctx; + struct drm_connector_state *conn_state; + struct drm_atomic_state *state; + struct drm_display_mode *mode; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + 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); + + mode = drm_display_mode_from_cea_vic(drm, 1); + KUNIT_ASSERT_NOT_NULL(test, mode); + + drm = &priv->drm; + crtc = priv->crtc; + ret = light_up_connector(test, drm, crtc, conn, mode, 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); + + conn_state = drm_atomic_get_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + + KUNIT_ASSERT_EQ(test, + conn_state->hdmi.broadcast_rgb, + DRM_HDMI_BROADCAST_RGB_AUTO); + + ret = drm_atomic_check_only(state); + KUNIT_ASSERT_EQ(test, ret, 0); + + conn_state = drm_atomic_get_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + + KUNIT_EXPECT_FALSE(test, conn_state->hdmi.is_limited_range); +} + +/* + * Test that for an HDMI connector, with an HDMI monitor, if the + * Broadcast RGB property is set to full with a mode that isn't the + * VIC-1 mode, we will get a full RGB Quantization Range. + */ +static void drm_test_check_broadcast_rgb_full_cea_mode(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx *ctx; + struct drm_connector_state *conn_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_atomic_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); + KUNIT_ASSERT_NE(test, drm_match_cea_mode(preferred), 1); + + 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); + + conn_state = drm_atomic_get_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + + conn_state->hdmi.broadcast_rgb = DRM_HDMI_BROADCAST_RGB_FULL; + + ret = drm_atomic_check_only(state); + KUNIT_ASSERT_EQ(test, ret, 0); + + conn_state = drm_atomic_get_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + + KUNIT_ASSERT_EQ(test, + conn_state->hdmi.broadcast_rgb, + DRM_HDMI_BROADCAST_RGB_FULL); + + KUNIT_EXPECT_FALSE(test, conn_state->hdmi.is_limited_range); +} + +/* + * Test that for an HDMI connector, with an HDMI monitor, if the + * Broadcast RGB property is set to full with a VIC-1 mode, we will get + * a full RGB Quantization Range. + */ +static void drm_test_check_broadcast_rgb_full_cea_mode_vic_1(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx *ctx; + struct drm_connector_state *conn_state; + struct drm_atomic_state *state; + struct drm_display_mode *mode; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + 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); + + mode = drm_display_mode_from_cea_vic(drm, 1); + KUNIT_ASSERT_NOT_NULL(test, mode); + + drm = &priv->drm; + crtc = priv->crtc; + ret = light_up_connector(test, drm, crtc, conn, mode, 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); + + conn_state = drm_atomic_get_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + + conn_state->hdmi.broadcast_rgb = DRM_HDMI_BROADCAST_RGB_FULL; + + ret = drm_atomic_check_only(state); + KUNIT_ASSERT_EQ(test, ret, 0); + + conn_state = drm_atomic_get_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + + KUNIT_ASSERT_EQ(test, + conn_state->hdmi.broadcast_rgb, + DRM_HDMI_BROADCAST_RGB_FULL); + + KUNIT_EXPECT_FALSE(test, conn_state->hdmi.is_limited_range); +} + +/* + * Test that for an HDMI connector, with an HDMI monitor, if the + * Broadcast RGB property is set to limited with a mode that isn't the + * VIC-1 mode, we will get a limited RGB Quantization Range. + */ +static void drm_test_check_broadcast_rgb_limited_cea_mode(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx *ctx; + struct drm_connector_state *conn_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_atomic_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); + KUNIT_ASSERT_NE(test, drm_match_cea_mode(preferred), 1); + + 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); + + conn_state = drm_atomic_get_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + + conn_state->hdmi.broadcast_rgb = DRM_HDMI_BROADCAST_RGB_LIMITED; + + ret = drm_atomic_check_only(state); + KUNIT_ASSERT_EQ(test, ret, 0); + + conn_state = drm_atomic_get_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + + KUNIT_ASSERT_EQ(test, + conn_state->hdmi.broadcast_rgb, + DRM_HDMI_BROADCAST_RGB_LIMITED); + + KUNIT_EXPECT_TRUE(test, conn_state->hdmi.is_limited_range); +} + +/* + * Test that for an HDMI connector, with an HDMI monitor, if the + * Broadcast RGB property is set to limited with a VIC-1 mode, we will + * get a limited RGB Quantization Range. + */ +static void drm_test_check_broadcast_rgb_limited_cea_mode_vic_1(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx *ctx; + struct drm_connector_state *conn_state; + struct drm_atomic_state *state; + struct drm_display_mode *mode; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + 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); + + mode = drm_display_mode_from_cea_vic(drm, 1); + KUNIT_ASSERT_NOT_NULL(test, mode); + + drm = &priv->drm; + crtc = priv->crtc; + ret = light_up_connector(test, drm, crtc, conn, mode, 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); + + conn_state = drm_atomic_get_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + + conn_state->hdmi.broadcast_rgb = DRM_HDMI_BROADCAST_RGB_LIMITED; + + ret = drm_atomic_check_only(state); + KUNIT_ASSERT_EQ(test, ret, 0); + + conn_state = drm_atomic_get_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + + KUNIT_ASSERT_EQ(test, + conn_state->hdmi.broadcast_rgb, + DRM_HDMI_BROADCAST_RGB_LIMITED); + + KUNIT_EXPECT_TRUE(test, conn_state->hdmi.is_limited_range); +} + /* * Test that if we change the maximum bpc property to a different value, * we trigger a mode change on the connector's CRTC, which will in turn * disable/enable the connector. */ @@ -1192,10 +1536,21 @@ static void drm_test_check_output_bpc_format_display_8bpc_only(struct kunit *tes KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 8); KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); } 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), + KUNIT_CASE(drm_test_check_broadcast_rgb_full_cea_mode), + KUNIT_CASE(drm_test_check_broadcast_rgb_full_cea_mode_vic_1), + KUNIT_CASE(drm_test_check_broadcast_rgb_limited_cea_mode), + KUNIT_CASE(drm_test_check_broadcast_rgb_limited_cea_mode_vic_1), + /* + * TODO: When we'll have YUV output support, we need to check + * that the limited range is always set to limited no matter + * what the value of Broadcast RGB is. + */ KUNIT_CASE(drm_test_check_broadcast_rgb_crtc_mode_changed), KUNIT_CASE(drm_test_check_broadcast_rgb_crtc_mode_not_changed), KUNIT_CASE(drm_test_check_hdmi_funcs_reject_rate), KUNIT_CASE(drm_test_check_max_tmds_rate_bpc_fallback), KUNIT_CASE(drm_test_check_max_tmds_rate_format_fallback), From patchwork Tue May 7 13:17:39 2024 Content-Type: text/plain; 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h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=dPcPFQQ3Eous/EY07rngnGvwPJwMZFz8iv3+L75yl8Bl0H/zZcSptZE6dtPsDj7/I Tq1DyHqTn8PGr9LY22wTdU8Y4ERRBrNcJV0eaTWa8lMxVljIZaP58fpquaEkEWS/EY aHnDvKFHtV/+UYkqX+4fhjDwITGjPFwBu8siZ73jk88jv1OEbsZF5PM7FITLl62KVS VlPCMhvutB6S5owIgO/s4dz1Qb12XEK4hIfCTq4j9GL+2Rv7oko/f5chhH5Eav2GEF W7zX+3HY8nhtv6isP13q+nU6GLiID1QUq6O9BDsLrNhOzWleN16KECwToULG8xxGc4 9de3/9yMKCyGw== From: Maxime Ripard Date: Tue, 07 May 2024 15:17:39 +0200 Subject: [PATCH v13 21/28] drm/connector: hdmi: Add Infoframes generation MIME-Version: 1.0 Message-Id: <20240507-kms-hdmi-connector-state-v13-21-8fafc5efe8be@kernel.org> References: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> In-Reply-To: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Andy Yan Cc: Hans Verkuil , Sebastian Wick , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, Maxime Ripard X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=26962; i=mripard@kernel.org; h=from:subject:message-id; bh=JQakg/hfEbk9BME8SwSlqe6AH8v2pT/yS9gdcLokpx4=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDGlWmh8ifDe9FcmXdPv38dqBcsET6w5clNx575R0u0/sK +OEaVXsHVNZGIQ5GWTFFFmeyISdXt6+uMrBfuUPmDmsTCBDGLg4BWAi/fsYaziyLBpSkne5vNst t835oKf2Tv8756zlT7pNbBJ+7LRZeLHAeiV93v6UGXXM9a9Oh3mUMzacLL666cu32/ZiqysE1af MNnafcb4x4wvfyVOZGfNPPj81/0fCyZ3hdTNce3lXcqqznLAHAA== X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240507_141917_301311_DAB61EAB X-CRM114-Status: GOOD ( 19.28 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Infoframes in KMS is usually handled by a bunch of low-level helpers that require quite some boilerplate for drivers. This leads to discrepancies with how drivers generate them, and which are actually sent. Now that we have everything needed to generate them in the HDMI connector state, we can generate them in our common logic so that drivers can simply reuse what we precomputed. Cc: Ville Syrjälä Signed-off-by: Maxime Ripard --- drivers/gpu/drm/display/drm_hdmi_state_helper.c | 336 +++++++++++++++++++++ drivers/gpu/drm/drm_connector.c | 14 + drivers/gpu/drm/tests/drm_connector_test.c | 12 + drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c | 1 + include/drm/display/drm_hdmi_state_helper.h | 7 + include/drm/drm_connector.h | 111 ++++++- 6 files changed, 480 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/display/drm_hdmi_state_helper.c b/drivers/gpu/drm/display/drm_hdmi_state_helper.c index c3a10f9f7ecd..8e90a849ee50 100644 --- a/drivers/gpu/drm/display/drm_hdmi_state_helper.c +++ b/drivers/gpu/drm/display/drm_hdmi_state_helper.c @@ -313,10 +313,148 @@ hdmi_compute_config(const struct drm_connector *connector, } return -EINVAL; } +static int hdmi_generate_avi_infoframe(const struct drm_connector *connector, + struct drm_connector_state *conn_state) +{ + const struct drm_display_mode *mode = + connector_state_get_mode(conn_state); + struct drm_connector_hdmi_infoframe *infoframe = + &conn_state->hdmi.infoframes.avi; + struct hdmi_avi_infoframe *frame = + &infoframe->data.avi; + bool is_limited_range = conn_state->hdmi.is_limited_range; + enum hdmi_quantization_range rgb_quant_range = + is_limited_range ? HDMI_QUANTIZATION_RANGE_LIMITED : HDMI_QUANTIZATION_RANGE_FULL; + int ret; + + ret = drm_hdmi_avi_infoframe_from_display_mode(frame, connector, mode); + if (ret) + return ret; + + frame->colorspace = conn_state->hdmi.output_format; + + /* + * FIXME: drm_hdmi_avi_infoframe_quant_range() doesn't handle + * YUV formats at all at the moment, so if we ever support YUV + * formats this needs to be revised. + */ + drm_hdmi_avi_infoframe_quant_range(frame, connector, mode, rgb_quant_range); + drm_hdmi_avi_infoframe_colorimetry(frame, conn_state); + drm_hdmi_avi_infoframe_bars(frame, conn_state); + + infoframe->set = true; + + return 0; +} + +static int hdmi_generate_spd_infoframe(const struct drm_connector *connector, + struct drm_connector_state *conn_state) +{ + struct drm_connector_hdmi_infoframe *infoframe = + &conn_state->hdmi.infoframes.spd; + struct hdmi_spd_infoframe *frame = + &infoframe->data.spd; + int ret; + + ret = hdmi_spd_infoframe_init(frame, + connector->hdmi.vendor, + connector->hdmi.product); + if (ret) + return ret; + + frame->sdi = HDMI_SPD_SDI_PC; + + infoframe->set = true; + + return 0; +} + +static int hdmi_generate_hdr_infoframe(const struct drm_connector *connector, + struct drm_connector_state *conn_state) +{ + struct drm_connector_hdmi_infoframe *infoframe = + &conn_state->hdmi.infoframes.hdr_drm; + struct hdmi_drm_infoframe *frame = + &infoframe->data.drm; + int ret; + + if (connector->max_bpc < 10) + return 0; + + if (!conn_state->hdr_output_metadata) + return 0; + + ret = drm_hdmi_infoframe_set_hdr_metadata(frame, conn_state); + if (ret) + return ret; + + infoframe->set = true; + + return 0; +} + +static int hdmi_generate_hdmi_vendor_infoframe(const struct drm_connector *connector, + struct drm_connector_state *conn_state) +{ + const struct drm_display_info *info = &connector->display_info; + const struct drm_display_mode *mode = + connector_state_get_mode(conn_state); + struct drm_connector_hdmi_infoframe *infoframe = + &conn_state->hdmi.infoframes.hdmi; + struct hdmi_vendor_infoframe *frame = + &infoframe->data.vendor.hdmi; + int ret; + + if (!info->has_hdmi_infoframe) + return 0; + + ret = drm_hdmi_vendor_infoframe_from_display_mode(frame, connector, mode); + if (ret) + return ret; + + infoframe->set = true; + + return 0; +} + +static int +hdmi_generate_infoframes(const struct drm_connector *connector, + struct drm_connector_state *conn_state) +{ + const struct drm_display_info *info = &connector->display_info; + int ret; + + if (!info->is_hdmi) + return 0; + + ret = hdmi_generate_avi_infoframe(connector, conn_state); + if (ret) + return ret; + + ret = hdmi_generate_spd_infoframe(connector, conn_state); + if (ret) + return ret; + + /* + * Audio Infoframes will be generated by ALSA, and updated by + * drm_atomic_helper_connector_hdmi_update_audio_infoframe(). + */ + + ret = hdmi_generate_hdr_infoframe(connector, conn_state); + if (ret) + return ret; + + ret = hdmi_generate_hdmi_vendor_infoframe(connector, conn_state); + if (ret) + return ret; + + return 0; +} + /** * drm_atomic_helper_connector_hdmi_check() - Helper to check HDMI connector atomic state * @connector: DRM Connector * @state: the DRM State object * @@ -342,10 +480,14 @@ int drm_atomic_helper_connector_hdmi_check(struct drm_connector *connector, ret = hdmi_compute_config(connector, new_conn_state, mode); if (ret) return ret; + ret = hdmi_generate_infoframes(connector, new_conn_state); + if (ret) + return ret; + if (old_conn_state->hdmi.broadcast_rgb != new_conn_state->hdmi.broadcast_rgb || old_conn_state->hdmi.output_bpc != new_conn_state->hdmi.output_bpc || old_conn_state->hdmi.output_format != new_conn_state->hdmi.output_format) { struct drm_crtc *crtc = new_conn_state->crtc; struct drm_crtc_state *crtc_state; @@ -358,5 +500,199 @@ int drm_atomic_helper_connector_hdmi_check(struct drm_connector *connector, } return 0; } EXPORT_SYMBOL(drm_atomic_helper_connector_hdmi_check); + +#define HDMI_MAX_INFOFRAME_SIZE 29 + +static int clear_device_infoframe(struct drm_connector *connector, + enum hdmi_infoframe_type type) +{ + const struct drm_connector_hdmi_funcs *funcs = connector->hdmi.funcs; + struct drm_device *dev = connector->dev; + int ret; + + drm_dbg_kms(dev, "Clearing infoframe type 0x%x\n", type); + + if (!funcs || !funcs->clear_infoframe) { + drm_dbg_kms(dev, "Function not implemented, bailing.\n"); + return 0; + } + + ret = funcs->clear_infoframe(connector, type); + if (ret) { + drm_dbg_kms(dev, "Call failed: %d\n", ret); + return ret; + } + + return 0; +} + +static int clear_infoframe(struct drm_connector *connector, + struct drm_connector_hdmi_infoframe *old_frame) +{ + int ret; + + ret = clear_device_infoframe(connector, old_frame->data.any.type); + if (ret) + return ret; + + return 0; +} + +static int write_device_infoframe(struct drm_connector *connector, + union hdmi_infoframe *frame) +{ + const struct drm_connector_hdmi_funcs *funcs = connector->hdmi.funcs; + struct drm_device *dev = connector->dev; + u8 buffer[HDMI_MAX_INFOFRAME_SIZE]; + int ret; + int len; + + drm_dbg_kms(dev, "Writing infoframe type %x\n", frame->any.type); + + if (!funcs || !funcs->write_infoframe) { + drm_dbg_kms(dev, "Function not implemented, bailing.\n"); + return -ENOSYS; + } + + len = hdmi_infoframe_pack(frame, buffer, sizeof(buffer)); + if (len < 0) + return len; + + ret = funcs->write_infoframe(connector, frame->any.type, buffer, len); + if (ret) { + drm_dbg_kms(dev, "Call failed: %d\n", ret); + return ret; + } + + return 0; +} + +static int write_infoframe(struct drm_connector *connector, + struct drm_connector_hdmi_infoframe *new_frame) +{ + int ret; + + ret = write_device_infoframe(connector, &new_frame->data); + if (ret) + return ret; + + return 0; +} + +static int write_or_clear_infoframe(struct drm_connector *connector, + struct drm_connector_hdmi_infoframe *old_frame, + struct drm_connector_hdmi_infoframe *new_frame) +{ + if (new_frame->set) + return write_infoframe(connector, new_frame); + + if (old_frame->set && !new_frame->set) + return clear_infoframe(connector, old_frame); + + return 0; +} + +/** + * drm_atomic_helper_connector_hdmi_update_infoframes - Update the Infoframes + * @connector: A pointer to the HDMI connector + * @state: The HDMI connector state to generate the infoframe from + * + * This function is meant for HDMI connector drivers to write their + * infoframes. It will typically be used in a + * @drm_connector_helper_funcs.atomic_enable implementation. + * + * Returns: + * Zero on success, error code on failure. + */ +int drm_atomic_helper_connector_hdmi_update_infoframes(struct drm_connector *connector, + struct drm_atomic_state *state) +{ + struct drm_connector_state *old_conn_state = + drm_atomic_get_old_connector_state(state, connector); + struct drm_connector_state *new_conn_state = + drm_atomic_get_new_connector_state(state, connector); + struct drm_display_info *info = &connector->display_info; + int ret; + + if (!info->is_hdmi) + return 0; + + mutex_lock(&connector->hdmi.infoframes.lock); + + ret = write_or_clear_infoframe(connector, + &old_conn_state->hdmi.infoframes.avi, + &new_conn_state->hdmi.infoframes.avi); + if (ret) + goto out; + + if (connector->hdmi.infoframes.audio.set) { + ret = write_infoframe(connector, + &connector->hdmi.infoframes.audio); + if (ret) + goto out; + } + + ret = write_or_clear_infoframe(connector, + &old_conn_state->hdmi.infoframes.hdr_drm, + &new_conn_state->hdmi.infoframes.hdr_drm); + if (ret) + goto out; + + ret = write_or_clear_infoframe(connector, + &old_conn_state->hdmi.infoframes.spd, + &new_conn_state->hdmi.infoframes.spd); + if (ret) + goto out; + + if (info->has_hdmi_infoframe) { + ret = write_or_clear_infoframe(connector, + &old_conn_state->hdmi.infoframes.hdmi, + &new_conn_state->hdmi.infoframes.hdmi); + if (ret) + goto out; + } + +out: + mutex_unlock(&connector->hdmi.infoframes.lock); + return ret; +} +EXPORT_SYMBOL(drm_atomic_helper_connector_hdmi_update_infoframes); + +/** + * drm_atomic_helper_connector_hdmi_update_audio_infoframe - Update the Audio Infoframe + * @connector: A pointer to the HDMI connector + * @frame: A pointer to the audio infoframe to write + * + * This function is meant for HDMI connector drivers to update their + * audio infoframe. It will typically be used in one of the ALSA hooks + * (most likely prepare). + * + * Returns: + * Zero on success, error code on failure. + */ +int +drm_atomic_helper_connector_hdmi_update_audio_infoframe(struct drm_connector *connector, + struct hdmi_audio_infoframe *frame) +{ + struct drm_connector_hdmi_infoframe *infoframe = + &connector->hdmi.infoframes.audio; + struct drm_display_info *info = &connector->display_info; + int ret; + + if (!info->is_hdmi) + return 0; + + mutex_lock(&connector->hdmi.infoframes.lock); + + memcpy(&infoframe->data, frame, sizeof(infoframe->data)); + infoframe->set = true; + + ret = write_infoframe(connector, infoframe); + + mutex_unlock(&connector->hdmi.infoframes.lock); + + return ret; +} +EXPORT_SYMBOL(drm_atomic_helper_connector_hdmi_update_audio_infoframe); diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index bdd3361ccc73..7237e8cf8c58 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -276,10 +276,11 @@ static int __drm_connector_init(struct drm_device *dev, INIT_LIST_HEAD(&connector->global_connector_list_entry); INIT_LIST_HEAD(&connector->probed_modes); INIT_LIST_HEAD(&connector->modes); mutex_init(&connector->mutex); mutex_init(&connector->edid_override_mutex); + mutex_init(&connector->hdmi.infoframes.lock); connector->edid_blob_ptr = NULL; connector->epoch_counter = 0; connector->tile_blob_ptr = NULL; connector->status = connector_status_unknown; connector->display_info.panel_orientation = @@ -454,10 +455,12 @@ EXPORT_SYMBOL(drmm_connector_init); /** * drmm_connector_hdmi_init - Init a preallocated HDMI connector * @dev: DRM device * @connector: A pointer to the HDMI connector to init + * @vendor: HDMI Controller Vendor name + * @product: HDMI Controller Product name * @funcs: callbacks for this connector * @hdmi_funcs: HDMI-related callbacks for this connector * @connector_type: user visible type of the connector * @ddc: optional pointer to the associated ddc adapter * @supported_formats: Bitmask of @hdmi_colorspace listing supported output formats @@ -474,19 +477,27 @@ EXPORT_SYMBOL(drmm_connector_init); * Returns: * Zero on success, error code on failure. */ int drmm_connector_hdmi_init(struct drm_device *dev, struct drm_connector *connector, + const char *vendor, const char *product, const struct drm_connector_funcs *funcs, const struct drm_connector_hdmi_funcs *hdmi_funcs, int connector_type, struct i2c_adapter *ddc, unsigned long supported_formats, unsigned int max_bpc) { int ret; + if (!vendor || !product) + return -EINVAL; + + if ((strlen(vendor) > DRM_CONNECTOR_HDMI_VENDOR_LEN) || + (strlen(product) > DRM_CONNECTOR_HDMI_PRODUCT_LEN)) + return -EINVAL; + if (!(connector_type == DRM_MODE_CONNECTOR_HDMIA || connector_type == DRM_MODE_CONNECTOR_HDMIB)) return -EINVAL; if (!supported_formats || !(supported_formats & BIT(HDMI_COLORSPACE_RGB))) @@ -498,10 +509,12 @@ int drmm_connector_hdmi_init(struct drm_device *dev, ret = drmm_connector_init(dev, connector, funcs, connector_type, ddc); if (ret) return ret; connector->hdmi.supported_formats = supported_formats; + strtomem_pad(connector->hdmi.vendor, vendor, 0); + strtomem_pad(connector->hdmi.product, product, 0); /* * drm_connector_attach_max_bpc_property() requires the * connector to have a state. */ @@ -650,10 +663,11 @@ void drm_connector_cleanup(struct drm_connector *connector) WARN_ON(connector->state && !connector->funcs->atomic_destroy_state); if (connector->state && connector->funcs->atomic_destroy_state) connector->funcs->atomic_destroy_state(connector, connector->state); + mutex_destroy(&connector->hdmi.infoframes.lock); mutex_destroy(&connector->mutex); memset(connector, 0, sizeof(*connector)); if (dev->registered) diff --git a/drivers/gpu/drm/tests/drm_connector_test.c b/drivers/gpu/drm/tests/drm_connector_test.c index 672b74bc9e23..4e3c2c7dfaf2 100644 --- a/drivers/gpu/drm/tests/drm_connector_test.c +++ b/drivers/gpu/drm/tests/drm_connector_test.c @@ -189,10 +189,11 @@ static void drm_test_connector_hdmi_init_valid(struct kunit *test) { struct drm_connector_init_priv *priv = test->priv; int ret; ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + "Vendor", "Product", &dummy_funcs, &dummy_hdmi_funcs, DRM_MODE_CONNECTOR_HDMIA, &priv->ddc, BIT(HDMI_COLORSPACE_RGB), @@ -208,10 +209,11 @@ static void drm_test_connector_hdmi_init_null_ddc(struct kunit *test) { struct drm_connector_init_priv *priv = test->priv; int ret; ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + "Vendor", "Product", &dummy_funcs, &dummy_hdmi_funcs, DRM_MODE_CONNECTOR_HDMIA, NULL, BIT(HDMI_COLORSPACE_RGB), @@ -227,10 +229,11 @@ static void drm_test_connector_hdmi_init_bpc_invalid(struct kunit *test) { struct drm_connector_init_priv *priv = test->priv; int ret; ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + "Vendor", "Product", &dummy_funcs, &dummy_hdmi_funcs, DRM_MODE_CONNECTOR_HDMIA, &priv->ddc, BIT(HDMI_COLORSPACE_RGB), @@ -246,10 +249,11 @@ static void drm_test_connector_hdmi_init_bpc_null(struct kunit *test) { struct drm_connector_init_priv *priv = test->priv; int ret; ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + "Vendor", "Product", &dummy_funcs, &dummy_hdmi_funcs, DRM_MODE_CONNECTOR_HDMIA, &priv->ddc, BIT(HDMI_COLORSPACE_RGB), @@ -269,10 +273,11 @@ static void drm_test_connector_hdmi_init_bpc_8(struct kunit *test) struct drm_property *prop; uint64_t val; int ret; ret = drmm_connector_hdmi_init(&priv->drm, connector, + "Vendor", "Product", &dummy_funcs, &dummy_hdmi_funcs, DRM_MODE_CONNECTOR_HDMIA, &priv->ddc, BIT(HDMI_COLORSPACE_RGB), @@ -304,10 +309,11 @@ static void drm_test_connector_hdmi_init_bpc_10(struct kunit *test) struct drm_property *prop; uint64_t val; int ret; ret = drmm_connector_hdmi_init(&priv->drm, connector, + "Vendor", "Product", &dummy_funcs, &dummy_hdmi_funcs, DRM_MODE_CONNECTOR_HDMIA, &priv->ddc, BIT(HDMI_COLORSPACE_RGB), @@ -339,10 +345,11 @@ static void drm_test_connector_hdmi_init_bpc_12(struct kunit *test) struct drm_property *prop; uint64_t val; int ret; ret = drmm_connector_hdmi_init(&priv->drm, connector, + "Vendor", "Product", &dummy_funcs, &dummy_hdmi_funcs, DRM_MODE_CONNECTOR_HDMIA, &priv->ddc, BIT(HDMI_COLORSPACE_RGB), @@ -370,10 +377,11 @@ static void drm_test_connector_hdmi_init_formats_empty(struct kunit *test) { struct drm_connector_init_priv *priv = test->priv; int ret; ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + "Vendor", "Product", &dummy_funcs, &dummy_hdmi_funcs, DRM_MODE_CONNECTOR_HDMIA, &priv->ddc, 0, @@ -389,10 +397,11 @@ static void drm_test_connector_hdmi_init_formats_no_rgb(struct kunit *test) { struct drm_connector_init_priv *priv = test->priv; int ret; ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + "Vendor", "Product", &dummy_funcs, &dummy_hdmi_funcs, DRM_MODE_CONNECTOR_HDMIA, &priv->ddc, BIT(HDMI_COLORSPACE_YUV422), @@ -409,10 +418,11 @@ static void drm_test_connector_hdmi_init_type_valid(struct kunit *test) struct drm_connector_init_priv *priv = test->priv; unsigned int connector_type = *(unsigned int *)test->param_value; int ret; ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + "Vendor", "Product", &dummy_funcs, &dummy_hdmi_funcs, connector_type, &priv->ddc, BIT(HDMI_COLORSPACE_RGB), @@ -443,10 +453,11 @@ static void drm_test_connector_hdmi_init_type_invalid(struct kunit *test) struct drm_connector_init_priv *priv = test->priv; unsigned int connector_type = *(unsigned int *)test->param_value; int ret; ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + "Vendor", "Product", &dummy_funcs, &dummy_hdmi_funcs, connector_type, &priv->ddc, BIT(HDMI_COLORSPACE_RGB), @@ -708,10 +719,11 @@ static void drm_test_drm_connector_attach_broadcast_rgb_property_hdmi_connector( struct drm_connector *connector = &priv->connector; struct drm_property *prop; int ret; ret = drmm_connector_hdmi_init(&priv->drm, connector, + "Vendor", "Product", &dummy_funcs, &dummy_hdmi_funcs, DRM_MODE_CONNECTOR_HDMIA, &priv->ddc, BIT(HDMI_COLORSPACE_RGB), 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 da5c3d9a80bb..e0bbe672642e 100644 --- a/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c +++ b/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c @@ -204,10 +204,11 @@ drm_atomic_helper_connector_hdmi_init(struct kunit *test, enc->possible_crtcs = drm_crtc_mask(priv->crtc); conn = &priv->connector; ret = drmm_connector_hdmi_init(drm, conn, + "Vendor", "Product", &dummy_connector_funcs, &dummy_connector_hdmi_funcs, DRM_MODE_CONNECTOR_HDMIA, NULL, formats, diff --git a/include/drm/display/drm_hdmi_state_helper.h b/include/drm/display/drm_hdmi_state_helper.h index 6021983e2602..fbf86ff9cdfb 100644 --- a/include/drm/display/drm_hdmi_state_helper.h +++ b/include/drm/display/drm_hdmi_state_helper.h @@ -4,13 +4,20 @@ #define DRM_HDMI_STATE_HELPER_H_ struct drm_atomic_state; struct drm_connector; struct drm_connector_state; +struct hdmi_audio_infoframe; void __drm_atomic_helper_connector_hdmi_reset(struct drm_connector *connector, struct drm_connector_state *new_conn_state); int drm_atomic_helper_connector_hdmi_check(struct drm_connector *connector, struct drm_atomic_state *state); +int drm_atomic_helper_connector_hdmi_update_audio_infoframe(struct drm_connector *connector, + struct hdmi_audio_infoframe *frame); +int drm_atomic_helper_connector_hdmi_update_infoframes(struct drm_connector *connector, + struct drm_atomic_state *state); + + #endif // DRM_HDMI_STATE_HELPER_H_ diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index 1fca26d51218..450c5605d145 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -912,10 +912,25 @@ struct drm_tv_connector_state { unsigned int overscan; unsigned int saturation; unsigned int hue; }; +/** + * struct drm_connector_hdmi_infoframe - HDMI Infoframe container + */ +struct drm_connector_hdmi_infoframe { + /** + * @data: HDMI Infoframe structure + */ + union hdmi_infoframe data; + + /** + * @set: Is the content of @data valid? + */ + bool set; +}; + /** * struct drm_connector_state - mutable connector state */ struct drm_connector_state { /** @connector: backpointer to the connector */ @@ -1069,11 +1084,40 @@ struct drm_connector_state { * Broadcast RGB selection value. */ enum drm_hdmi_broadcast_rgb broadcast_rgb; /** - * @is_full_range: Is the output supposed to use a full + * @infoframes: HDMI Infoframes matching that state + */ + struct { + /** + * @avi: AVI Infoframes structure matching our + * state. + */ + struct drm_connector_hdmi_infoframe avi; + + /** + * @hdr_drm: DRM (Dynamic Range and Mastering) + * Infoframes structure matching our state. + */ + struct drm_connector_hdmi_infoframe hdr_drm; + + /** + * @spd: SPD Infoframes structure matching our + * state. + */ + struct drm_connector_hdmi_infoframe spd; + + /** + * @vendor: HDMI Vendor Infoframes structure + * matching our state. + */ + struct drm_connector_hdmi_infoframe hdmi; + } infoframes; + + /** + * @is_limited_range: Is the output supposed to use a limited * RGB Quantization Range or not? */ bool is_limited_range; /** @@ -1113,10 +1157,45 @@ struct drm_connector_hdmi_funcs { */ enum drm_mode_status (*tmds_char_rate_valid)(const struct drm_connector *connector, const struct drm_display_mode *mode, unsigned long long tmds_rate); + + /** + * @clear_infoframe: + * + * This callback is invoked through + * @drm_atomic_helper_connector_hdmi_update_infoframes during a + * commit to clear the infoframes into the hardware. It will be + * called multiple times, once for every disabled infoframe + * type. + * + * The @clear_infoframe callback is optional. + * + * Returns: + * 0 on success, a negative error code otherwise + */ + int (*clear_infoframe)(struct drm_connector *connector, + enum hdmi_infoframe_type type); + + /** + * @write_infoframe: + * + * This callback is invoked through + * @drm_atomic_helper_connector_hdmi_update_infoframes during a + * commit to program the infoframes into the hardware. It will + * be called multiple times, once for every updated infoframe + * type. + * + * The @write_infoframe callback is mandatory. + * + * Returns: + * 0 on success, a negative error code otherwise + */ + int (*write_infoframe)(struct drm_connector *connector, + enum hdmi_infoframe_type type, + const u8 *buffer, size_t len); }; /** * struct drm_connector_funcs - control connectors on a given device * @@ -1984,20 +2063,49 @@ struct drm_connector { /** * @hdmi: HDMI-related variable and properties. */ struct { +#define DRM_CONNECTOR_HDMI_VENDOR_LEN 8 + /** + * @vendor: HDMI Controller Vendor Name + */ + unsigned char vendor[DRM_CONNECTOR_HDMI_VENDOR_LEN] __nonstring; + +#define DRM_CONNECTOR_HDMI_PRODUCT_LEN 16 + /** + * @product: HDMI Controller Product Name + */ + unsigned char product[DRM_CONNECTOR_HDMI_PRODUCT_LEN] __nonstring; + /** * @supported_formats: Bitmask of @hdmi_colorspace * supported by the controller. */ unsigned long supported_formats; /** * @funcs: HDMI connector Control Functions */ const struct drm_connector_hdmi_funcs *funcs; + + /** + * @infoframes: Current Infoframes output by the connector + */ + struct { + /** + * @lock: Mutex protecting against concurrent access to + * the infoframes, most notably between KMS and ALSA. + */ + struct mutex lock; + + /** + * @audio: Current Audio Infoframes structure. Protected + * by @lock. + */ + struct drm_connector_hdmi_infoframe audio; + } infoframes; } hdmi; }; #define obj_to_connector(x) container_of(x, struct drm_connector, base) @@ -2015,10 +2123,11 @@ int drmm_connector_init(struct drm_device *dev, const struct drm_connector_funcs *funcs, int connector_type, struct i2c_adapter *ddc); int drmm_connector_hdmi_init(struct drm_device *dev, struct drm_connector *connector, + const char *vendor, const char *product, const struct drm_connector_funcs *funcs, const struct drm_connector_hdmi_funcs *hdmi_funcs, int connector_type, struct i2c_adapter *ddc, unsigned long supported_formats, From patchwork Tue May 7 13:17:40 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13657038 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 94F21C10F1A for ; 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Tue, 07 May 2024 13:21:04 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1s4KiU-0000000B9le-28aD; Tue, 07 May 2024 13:18:53 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 443E361794; Tue, 7 May 2024 13:18:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B6CBAC4AF66; Tue, 7 May 2024 13:18:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1715087926; bh=5SC8jBSEzHmgckW1BacEcaTXRBSM2iUEZbvY/yF9KWs=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=M1cgbs1xsswHihdBh4A+Hu8loIKHp5QQl7S45vJ1oM1nnNChjAcp8AkWlW+n1Eraq 5DIQBe2e+gaC1RaHlOnWvJmfuE/edIo4G0UMc9A/5lilm5XE+Vpmv6JgjGb6XdDFVl p/4bIrtE9gUXe4oz5rJbinII2wPkx3D/4d3Gby2H0Y789dFksJ1ZM/sdSAb/JmMeZE 0Wz17jjc4ZCJZaUct+7mQcxIk7c84bdBuiukr3j96DqBe0BZSc5EZfBINEUUIVmBiv Z2vgeXdaivP3VDT26vD5DZsnQvQI/BjJN+pfsACoGIjyDZdnSN8x5k2wQze2yk4GHF GOfpLL3j94xWQ== From: Maxime Ripard Date: Tue, 07 May 2024 15:17:40 +0200 Subject: [PATCH v13 22/28] drm/tests: Add infoframes test MIME-Version: 1.0 Message-Id: <20240507-kms-hdmi-connector-state-v13-22-8fafc5efe8be@kernel.org> References: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> In-Reply-To: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Andy Yan Cc: Hans Verkuil , Sebastian Wick , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, Maxime Ripard X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=8730; i=mripard@kernel.org; h=from:subject:message-id; bh=5SC8jBSEzHmgckW1BacEcaTXRBSM2iUEZbvY/yF9KWs=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDGlWmh8Zm6bFJLPWZC0/4SItaLrH8q5sutYJ4fvbas5GO 6qbvp3ZMZWFQZiTQVZMkeWJTNjp5e2LqxzsV/6AmcPKBDKEgYtTACZSsoix4faVO//1+8pUH6dp fbt3/8WMg7ten5ZeOy/m4tprr0rP6BT/8FmnWytRsOLW2l2Sp3lv9jDWxyw0C+5/7On9N3/++bo 9u9b4rDik889uR+Ol7BNTfL8V5Dtd5NHs6N1SEzb3hMcaYU8pAA== X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240507_061847_015664_F69EA6E1 X-CRM114-Status: GOOD ( 12.05 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The previous patch added the generation of the infoframes matching an HDMI connector state. Let's add a few tests to make sure it works as expected. Signed-off-by: Maxime Ripard --- drivers/gpu/drm/tests/drm_connector_test.c | 219 +++++++++++++++++++++++++++++ 1 file changed, 219 insertions(+) diff --git a/drivers/gpu/drm/tests/drm_connector_test.c b/drivers/gpu/drm/tests/drm_connector_test.c index 4e3c2c7dfaf2..9ea228266de2 100644 --- a/drivers/gpu/drm/tests/drm_connector_test.c +++ b/drivers/gpu/drm/tests/drm_connector_test.c @@ -219,10 +219,221 @@ static void drm_test_connector_hdmi_init_null_ddc(struct kunit *test) BIT(HDMI_COLORSPACE_RGB), 8); KUNIT_EXPECT_EQ(test, ret, 0); } +/* + * Test that the registration of an HDMI connector with a NULL vendor + * fails. + */ +static void drm_test_connector_hdmi_init_null_vendor(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + NULL, "Product", + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_LT(test, ret, 0); +} + +/* + * Test that the registration of an HDMI connector with a NULL product + * fails. + */ +static void drm_test_connector_hdmi_init_null_product(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + "Vendor", NULL, + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_LT(test, ret, 0); +} + +/* + * Test that the registration of a connector with a valid, shorter than + * the max length, product name succeeds, and is stored padded with 0. + */ +static void drm_test_connector_hdmi_init_product_valid(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const unsigned char expected_product[DRM_CONNECTOR_HDMI_PRODUCT_LEN] = { + 'P', 'r', 'o', 'd', + }; + const char *product_name = "Prod"; + int ret; + + KUNIT_ASSERT_LT(test, strlen(product_name), DRM_CONNECTOR_HDMI_PRODUCT_LEN); + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + "Vendor", product_name, + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_MEMEQ(test, + priv->connector.hdmi.product, + expected_product, + sizeof(priv->connector.hdmi.product)); +} + +/* + * Test that the registration of a connector with a valid, at max + * length, product name succeeds, and is stored padded without any + * trailing \0. + */ +static void drm_test_connector_hdmi_init_product_length_exact(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const unsigned char expected_product[DRM_CONNECTOR_HDMI_PRODUCT_LEN] = { + 'P', 'r', 'o', 'd', 'u', 'c', 't', + 'P', 'r', 'o', 'd', 'u', 'c', 't', + 'P', 'r', + }; + const char *product_name = "ProductProductPr"; + int ret; + + KUNIT_ASSERT_EQ(test, strlen(product_name), DRM_CONNECTOR_HDMI_PRODUCT_LEN); + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + "Vendor", product_name, + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_MEMEQ(test, + priv->connector.hdmi.product, + expected_product, + sizeof(priv->connector.hdmi.product)); +} + +/* + * Test that the registration of a connector with a product name larger + * than the maximum length fails. + */ +static void drm_test_connector_hdmi_init_product_length_too_long(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const char *product_name = "ProductProductProduct"; + int ret; + + KUNIT_ASSERT_GT(test, strlen(product_name), DRM_CONNECTOR_HDMI_PRODUCT_LEN); + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + "Vendor", product_name, + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_LT(test, ret, 0); +} + +/* + * Test that the registration of a connector with a vendor name smaller + * than the maximum length succeeds, and is stored padded with zeros. + */ +static void drm_test_connector_hdmi_init_vendor_valid(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const char expected_vendor[DRM_CONNECTOR_HDMI_VENDOR_LEN] = { + 'V', 'e', 'n', 'd', + }; + const char *vendor_name = "Vend"; + int ret; + + KUNIT_ASSERT_LT(test, strlen(vendor_name), DRM_CONNECTOR_HDMI_VENDOR_LEN); + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + vendor_name, "Product", + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_MEMEQ(test, + priv->connector.hdmi.vendor, + expected_vendor, + sizeof(priv->connector.hdmi.vendor)); +} + +/* + * Test that the registration of a connector with a vendor name at the + * maximum length succeeds, and is stored padded without the trailing + * zero. + */ +static void drm_test_connector_hdmi_init_vendor_length_exact(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const char expected_vendor[DRM_CONNECTOR_HDMI_VENDOR_LEN] = { + 'V', 'e', 'n', 'd', 'o', 'r', + 'V', 'e', + }; + const char *vendor_name = "VendorVe"; + int ret; + + KUNIT_ASSERT_EQ(test, strlen(vendor_name), DRM_CONNECTOR_HDMI_VENDOR_LEN); + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + vendor_name, "Product", + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_MEMEQ(test, + priv->connector.hdmi.vendor, + expected_vendor, + sizeof(priv->connector.hdmi.vendor)); +} + +/* + * Test that the registration of a connector with a vendor name larger + * than the maximum length fails. + */ +static void drm_test_connector_hdmi_init_vendor_length_too_long(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const char *vendor_name = "VendorVendor"; + int ret; + + KUNIT_ASSERT_GT(test, strlen(vendor_name), DRM_CONNECTOR_HDMI_VENDOR_LEN); + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + vendor_name, "Product", + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_LT(test, ret, 0); +} + /* * Test that the registration of a connector with an invalid maximum bpc * count fails. */ static void drm_test_connector_hdmi_init_bpc_invalid(struct kunit *test) @@ -499,10 +710,18 @@ static struct kunit_case drmm_connector_hdmi_init_tests[] = { KUNIT_CASE(drm_test_connector_hdmi_init_bpc_invalid), KUNIT_CASE(drm_test_connector_hdmi_init_bpc_null), KUNIT_CASE(drm_test_connector_hdmi_init_formats_empty), KUNIT_CASE(drm_test_connector_hdmi_init_formats_no_rgb), KUNIT_CASE(drm_test_connector_hdmi_init_null_ddc), + KUNIT_CASE(drm_test_connector_hdmi_init_null_product), + KUNIT_CASE(drm_test_connector_hdmi_init_null_vendor), + KUNIT_CASE(drm_test_connector_hdmi_init_product_length_exact), + KUNIT_CASE(drm_test_connector_hdmi_init_product_length_too_long), + KUNIT_CASE(drm_test_connector_hdmi_init_product_valid), + KUNIT_CASE(drm_test_connector_hdmi_init_vendor_length_exact), + KUNIT_CASE(drm_test_connector_hdmi_init_vendor_length_too_long), + KUNIT_CASE(drm_test_connector_hdmi_init_vendor_valid), KUNIT_CASE_PARAM(drm_test_connector_hdmi_init_type_valid, drm_connector_hdmi_init_type_valid_gen_params), KUNIT_CASE_PARAM(drm_test_connector_hdmi_init_type_invalid, drm_connector_hdmi_init_type_invalid_gen_params), { } From patchwork Tue May 7 13:17:41 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13657048 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 7E074C25B4F for ; Tue, 7 May 2024 13:23:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References:Message-Id :MIME-Version:Subject:Date:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=YeO7GnB4T/8KP6XgnoyXdK/798o+QvSwPhEJVTVAnIk=; 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a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1715087929; bh=jTBz0ob9iuEpIQKBkFz6nD4R8YQTfSw4yt4sHjlZsdU=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=GEH8vOgCJLGrWu7Y08Ks/t+Ekqaihqy2odVwrXdL+O3CW93Kpq1SzeYkNtQxynhi/ 6rEmReyPRJT4I1Ec3yibsUZ0/edgi7eFt2D1HlWP/r/7jWu3p0Rl5apHidqcd+qY4t od8NKYLpRbaF3LR5xsKdXYL9bs7jcQ0HvtdVi/VnT+z8+4rmA7pekILmrdhMOal0/J SheWAXYEf0KDcVNC8OcHNGupMZFqDRUhSlm6b9ij8mBOMYkB3zaiU/Q89jFtz4gmOJ o/QUbEHkxzosvFx7t+8gdqww+4AAPpKB2FrLkT/FYHorJ18EeQvp8dGZayIK8sR6wR +/Q7J21nXF3tA== From: Maxime Ripard Date: Tue, 07 May 2024 15:17:41 +0200 Subject: [PATCH v13 23/28] drm/connector: hdmi: Create Infoframe DebugFS entries MIME-Version: 1.0 Message-Id: <20240507-kms-hdmi-connector-state-v13-23-8fafc5efe8be@kernel.org> References: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> In-Reply-To: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Andy Yan Cc: Hans Verkuil , Sebastian Wick , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, Maxime Ripard X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=5419; i=mripard@kernel.org; h=from:subject:message-id; bh=jTBz0ob9iuEpIQKBkFz6nD4R8YQTfSw4yt4sHjlZsdU=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDGlWmh+bM4T/5s+98i7g9LpCac7kpsykF0V3P1aeFZhlw c+wdJdgx1QWBmFOBlkxRZYnMmGnl7cvrnKwX/kDZg4rE8gQBi5OAZiIRStjvXft0VDRBhvmsvCA aIY5z0S75Zzj618cLrvaGjVtpvEUnUMvT351qjn2onBVZMYSPfvPjA0rTi8Lt9w8x/ilvE55QOn ay+GG+/Xb1iftPdBSMSlh1eekxVMdfFsuteVW7Aora7nqvxQA X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240507_061850_630742_DDF84F57 X-CRM114-Status: GOOD ( 15.43 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org There has been some discussions recently about the infoframes sent by drivers and if they were properly generated. In parallel, there's been some interest in creating an infoframe-decode tool similar to edid-decode. Both would be much easier if we were to expose the infoframes programmed in the hardware. It won't be perfect since we have no guarantee that it's actually what goes through the wire, but it's the best we can do. Signed-off-by: Maxime Ripard --- drivers/gpu/drm/drm_debugfs.c | 152 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 152 insertions(+) diff --git a/drivers/gpu/drm/drm_debugfs.c b/drivers/gpu/drm/drm_debugfs.c index 08fcefd804bc..dd39a5b7a711 100644 --- a/drivers/gpu/drm/drm_debugfs.c +++ b/drivers/gpu/drm/drm_debugfs.c @@ -518,10 +518,160 @@ static const struct file_operations drm_connector_fops = { .llseek = seq_lseek, .release = single_release, .write = connector_write }; +#define HDMI_MAX_INFOFRAME_SIZE 29 + +static ssize_t +audio_infoframe_read(struct file *filp, char __user *ubuf, size_t count, loff_t *ppos) +{ + struct drm_connector_hdmi_infoframe *infoframe; + struct drm_connector *connector; + union hdmi_infoframe *frame; + u8 buf[HDMI_INFOFRAME_SIZE(AUDIO)]; + ssize_t len = 0; + + connector = filp->private_data; + mutex_lock(&connector->hdmi.infoframes.lock); + + infoframe = &connector->hdmi.infoframes.audio; + if (!infoframe->set) + goto out; + + frame = &infoframe->data; + len = hdmi_infoframe_pack(frame, buf, sizeof(buf)); + if (len < 0) + goto out; + + len = simple_read_from_buffer(ubuf, count, ppos, buf, len); + +out: + mutex_unlock(&connector->hdmi.infoframes.lock); + return len; +} + +static const struct file_operations audio_infoframe_fops = { + .owner = THIS_MODULE, + .open = simple_open, + .read = audio_infoframe_read, +}; + +static int create_hdmi_audio_infoframe_file(struct drm_connector *connector, + struct dentry *parent) +{ + struct dentry *file; + + file = debugfs_create_file("audio", 0400, parent, connector, &audio_infoframe_fops); + if (IS_ERR(file)) + return PTR_ERR(file); + + return 0; +} + +#define DEFINE_INFOFRAME_FILE(_f) \ +static ssize_t _f##_read_infoframe(struct file *filp, \ + char __user *ubuf, \ + size_t count, \ + loff_t *ppos) \ +{ \ + struct drm_connector_hdmi_infoframe *infoframe; \ + struct drm_connector_state *conn_state; \ + struct drm_connector *connector; \ + union hdmi_infoframe *frame; \ + struct drm_device *dev; \ + u8 buf[HDMI_MAX_INFOFRAME_SIZE]; \ + ssize_t len = 0; \ + \ + connector = filp->private_data; \ + dev = connector->dev; \ + \ + drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); \ + \ + conn_state = connector->state; \ + infoframe = &conn_state->hdmi.infoframes._f; \ + if (!infoframe->set) \ + goto out; \ + \ + frame = &infoframe->data; \ + len = hdmi_infoframe_pack(frame, buf, sizeof(buf)); \ + if (len < 0) \ + goto out; \ + \ + len = simple_read_from_buffer(ubuf, count, ppos, buf, len); \ + \ +out: \ + drm_modeset_unlock(&dev->mode_config.connection_mutex); \ + return len; \ +} \ +\ +static const struct file_operations _f##_infoframe_fops = { \ + .owner = THIS_MODULE, \ + .open = simple_open, \ + .read = _f##_read_infoframe, \ +}; \ +\ +static int create_hdmi_## _f ## _infoframe_file (struct drm_connector *connector, \ + struct dentry *parent) \ +{ \ + struct dentry *file; \ + \ + file = debugfs_create_file(#_f, 0400, parent, connector, & _f ## _infoframe_fops); \ + if (IS_ERR(file)) \ + return PTR_ERR(file); \ + \ + return 0; \ +} + +DEFINE_INFOFRAME_FILE(avi); +DEFINE_INFOFRAME_FILE(hdmi); +DEFINE_INFOFRAME_FILE(hdr_drm); +DEFINE_INFOFRAME_FILE(spd); + +static int create_hdmi_infoframe_files(struct drm_connector *connector, + struct dentry *parent) +{ + int ret; + + ret = create_hdmi_audio_infoframe_file(connector, parent); + if (ret) + return ret; + + ret = create_hdmi_avi_infoframe_file(connector, parent); + if (ret) + return ret; + + ret = create_hdmi_hdmi_infoframe_file(connector, parent); + if (ret) + return ret; + + ret = create_hdmi_hdr_drm_infoframe_file(connector, parent); + if (ret) + return ret; + + ret = create_hdmi_spd_infoframe_file(connector, parent); + if (ret) + return ret; + + return 0; +} + +static void hdmi_debugfs_add(struct drm_connector *connector) +{ + struct dentry *dir; + + if (!(connector->connector_type == DRM_MODE_CONNECTOR_HDMIA || + connector->connector_type == DRM_MODE_CONNECTOR_HDMIB)) + return; + + dir = debugfs_create_dir("infoframes", connector->debugfs_entry); + if (IS_ERR(dir)) + return; + + create_hdmi_infoframe_files(connector, dir); +} + void drm_debugfs_connector_add(struct drm_connector *connector) { struct drm_device *dev = connector->dev; struct dentry *root; @@ -545,10 +695,12 @@ void drm_debugfs_connector_add(struct drm_connector *connector) /* max bpc */ debugfs_create_file("output_bpc", 0444, root, connector, &output_bpc_fops); + hdmi_debugfs_add(connector); + if (connector->funcs->debugfs_init) connector->funcs->debugfs_init(connector, root); } void drm_debugfs_connector_remove(struct drm_connector *connector) From patchwork Tue May 7 13:17:42 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13657042 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 E34D3C25B4F for ; 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Tue, 07 May 2024 13:21:48 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1s4Kia-0000000BA1L-3ly0; Tue, 07 May 2024 13:19:07 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 154026176E; Tue, 7 May 2024 13:18:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 63075C2BBFC; Tue, 7 May 2024 13:18:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1715087931; bh=QrxDEXHUeZrcTXqXGbZtRdhc7jRZ/NOEiZ+VD6dKy0I=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=OGkmvZx5hhjttJv7BN9Ybk33GJw6ikUR6o+75YKsb9o80r85xLRfn0IFBve4KY7Fx mXzD7Xh5oWBZsw4Ku5EDZNAIq3IwII6v+97IAF74j9cWwwIYL51VE6nj3tylTRkptk btzyHLMFUOqg2sPOlvGboC2t1ijscSQ2NCt+4bz05lBU8Eg+IYb/rgh9snkcstyh3e IMIO+PbaSWIS4cEJJWkUhDisGUPeoUpZG6wGu9mEbwho2t2k5RDxDSvcK93PQ/gWtc MeaX91NgeQliKEsosDpk3MZ1bsTvM2NrBN24MlykJ8zr/VDhmc15Ca9KY5X2ytk6SO mW9dxFDbQRtkQ== From: Maxime Ripard Date: Tue, 07 May 2024 15:17:42 +0200 Subject: [PATCH v13 24/28] drm/vc4: hdmi: Switch to HDMI connector MIME-Version: 1.0 Message-Id: <20240507-kms-hdmi-connector-state-v13-24-8fafc5efe8be@kernel.org> References: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> In-Reply-To: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Andy Yan Cc: Hans Verkuil , Sebastian Wick , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, Maxime Ripard , Sui Jingfeng X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=43310; i=mripard@kernel.org; h=from:subject:message-id; bh=QrxDEXHUeZrcTXqXGbZtRdhc7jRZ/NOEiZ+VD6dKy0I=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDGlWmp98LvAb1u9IkBb0Sj6QMM9w59ZYE8Vm0+SDzw7zC dcK9h7smMrCIMzJICumyPJEJuz08vbFVQ72K3/AzGFlAhnCwMUpABN5ycnYMLHc9oHBsvoCU5XF ZlfZti/b7Gtudvvdg9Ivi6U9GH5kzK48v8Ej5c7TE1wih0T+OHXvZqyVvRC4Xu+lWJex8pY5r27 d1BeV1tvmwCDA01Ge/TbqiqSt50btP23/9zyMehkp6PfIYwoA X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240507_061853_412652_9D1941C9 X-CRM114-Status: GOOD ( 19.59 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The new HDMI connector infrastructure allows us to remove a lot of boilerplate, so let's switch to it. Acked-by: Sui Jingfeng Signed-off-by: Maxime Ripard --- drivers/gpu/drm/vc4/Kconfig | 1 + drivers/gpu/drm/vc4/vc4_hdmi.c | 644 +++++-------------------------------- drivers/gpu/drm/vc4/vc4_hdmi.h | 44 +-- drivers/gpu/drm/vc4/vc4_hdmi_phy.c | 6 +- 4 files changed, 92 insertions(+), 603 deletions(-) diff --git a/drivers/gpu/drm/vc4/Kconfig b/drivers/gpu/drm/vc4/Kconfig index 91dcf8d174d6..269b5f26b2ea 100644 --- a/drivers/gpu/drm/vc4/Kconfig +++ b/drivers/gpu/drm/vc4/Kconfig @@ -8,10 +8,11 @@ config DRM_VC4 depends on DRM depends on SND && SND_SOC depends on COMMON_CLK depends on PM select DRM_DISPLAY_HDMI_HELPER + select DRM_DISPLAY_HDMI_STATE_HELPER select DRM_DISPLAY_HELPER select DRM_KMS_HELPER select DRM_GEM_DMA_HELPER select DRM_PANEL_BRIDGE select SND_PCM diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index d30f8e8e8967..d57c4a5948c8 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -30,10 +30,11 @@ * The driver does not yet support CEC control, though the HDMI * encoder block has CEC support. */ #include +#include #include #include #include #include #include @@ -108,29 +109,10 @@ #define HSM_MIN_CLOCK_FREQ 120000000 #define CEC_CLOCK_FREQ 40000 #define HDMI_14_MAX_TMDS_CLK (340 * 1000 * 1000) -static const char * const output_format_str[] = { - [VC4_HDMI_OUTPUT_RGB] = "RGB", - [VC4_HDMI_OUTPUT_YUV420] = "YUV 4:2:0", - [VC4_HDMI_OUTPUT_YUV422] = "YUV 4:2:2", - [VC4_HDMI_OUTPUT_YUV444] = "YUV 4:4:4", -}; - -static const char *vc4_hdmi_output_fmt_str(enum vc4_hdmi_output_format fmt) -{ - if (fmt >= ARRAY_SIZE(output_format_str)) - return "invalid"; - - return output_format_str[fmt]; -} - -static unsigned long long -vc4_hdmi_encoder_compute_mode_clock(const struct drm_display_mode *mode, - unsigned int bpc, enum vc4_hdmi_output_format fmt); - static bool vc4_hdmi_supports_scrambling(struct vc4_hdmi *vc4_hdmi) { struct drm_display_info *display = &vc4_hdmi->connector.display_info; lockdep_assert_held(&vc4_hdmi->mutex); @@ -145,32 +127,17 @@ static bool vc4_hdmi_supports_scrambling(struct vc4_hdmi *vc4_hdmi) return true; } static bool vc4_hdmi_mode_needs_scrambling(const struct drm_display_mode *mode, unsigned int bpc, - enum vc4_hdmi_output_format fmt) + enum hdmi_colorspace fmt) { - unsigned long long clock = vc4_hdmi_encoder_compute_mode_clock(mode, bpc, fmt); + unsigned long long clock = drm_hdmi_compute_mode_clock(mode, bpc, fmt); return clock > HDMI_14_MAX_TMDS_CLK; } -static bool vc4_hdmi_is_full_range(struct vc4_hdmi *vc4_hdmi, - struct vc4_hdmi_connector_state *vc4_state) -{ - const struct drm_display_mode *mode = &vc4_hdmi->saved_adjusted_mode; - struct drm_display_info *display = &vc4_hdmi->connector.display_info; - - if (vc4_state->broadcast_rgb == VC4_HDMI_BROADCAST_RGB_LIMITED) - return false; - else if (vc4_state->broadcast_rgb == VC4_HDMI_BROADCAST_RGB_FULL) - return true; - - return !display->is_hdmi || - drm_default_rgb_quant_range(mode) == HDMI_QUANTIZATION_RANGE_FULL; -} - static int vc4_hdmi_debugfs_regs(struct seq_file *m, void *unused) { struct drm_debugfs_entry *entry = m->private; struct vc4_hdmi *vc4_hdmi = entry->file.data; struct drm_device *drm = vc4_hdmi->connector.dev; @@ -522,11 +489,11 @@ static int vc4_hdmi_connector_get_modes(struct drm_connector *connector) if (!vc4->hvs->vc5_hdmi_enable_hdmi_20) { struct drm_device *drm = connector->dev; const struct drm_display_mode *mode; list_for_each_entry(mode, &connector->probed_modes, head) { - if (vc4_hdmi_mode_needs_scrambling(mode, 8, VC4_HDMI_OUTPUT_RGB)) { + if (vc4_hdmi_mode_needs_scrambling(mode, 8, HDMI_COLORSPACE_RGB)) { drm_warn_once(drm, "The core clock cannot reach frequencies high enough to support 4k @ 60Hz."); drm_warn_once(drm, "Please change your config.txt file to add hdmi_enable_4kp60."); } } } @@ -537,16 +504,12 @@ static int vc4_hdmi_connector_get_modes(struct drm_connector *connector) static int vc4_hdmi_connector_atomic_check(struct drm_connector *connector, struct drm_atomic_state *state) { struct drm_connector_state *old_state = drm_atomic_get_old_connector_state(state, connector); - struct vc4_hdmi_connector_state *old_vc4_state = - conn_state_to_vc4_hdmi_conn_state(old_state); struct drm_connector_state *new_state = drm_atomic_get_new_connector_state(state, connector); - struct vc4_hdmi_connector_state *new_vc4_state = - conn_state_to_vc4_hdmi_conn_state(new_state); struct drm_crtc *crtc = new_state->crtc; if (!crtc) return 0; @@ -574,174 +537,66 @@ static int vc4_hdmi_connector_atomic_check(struct drm_connector *connector, ret = drm_atomic_add_affected_planes(state, crtc); if (ret) return ret; } - if (old_state->colorspace != new_state->colorspace || - old_vc4_state->broadcast_rgb != new_vc4_state->broadcast_rgb || - !drm_connector_atomic_hdr_metadata_equal(old_state, new_state)) { + if (old_state->colorspace != new_state->colorspace) { struct drm_crtc_state *crtc_state; crtc_state = drm_atomic_get_crtc_state(state, crtc); if (IS_ERR(crtc_state)) return PTR_ERR(crtc_state); crtc_state->mode_changed = true; } - return 0; -} - -static int vc4_hdmi_connector_get_property(struct drm_connector *connector, - const struct drm_connector_state *state, - struct drm_property *property, - uint64_t *val) -{ - struct drm_device *drm = connector->dev; - struct vc4_hdmi *vc4_hdmi = - connector_to_vc4_hdmi(connector); - const struct vc4_hdmi_connector_state *vc4_conn_state = - conn_state_to_vc4_hdmi_conn_state(state); - - if (property == vc4_hdmi->broadcast_rgb_property) { - *val = vc4_conn_state->broadcast_rgb; - } else { - drm_dbg(drm, "Unknown property [PROP:%d:%s]\n", - property->base.id, property->name); - return -EINVAL; - } - - return 0; -} - -static int vc4_hdmi_connector_set_property(struct drm_connector *connector, - struct drm_connector_state *state, - struct drm_property *property, - uint64_t val) -{ - struct drm_device *drm = connector->dev; - struct vc4_hdmi *vc4_hdmi = - connector_to_vc4_hdmi(connector); - struct vc4_hdmi_connector_state *vc4_conn_state = - conn_state_to_vc4_hdmi_conn_state(state); - - if (property == vc4_hdmi->broadcast_rgb_property) { - vc4_conn_state->broadcast_rgb = val; - return 0; - } - - drm_dbg(drm, "Unknown property [PROP:%d:%s]\n", - property->base.id, property->name); - return -EINVAL; + return drm_atomic_helper_connector_hdmi_check(connector, state); } static void vc4_hdmi_connector_reset(struct drm_connector *connector) { - struct vc4_hdmi_connector_state *old_state = - conn_state_to_vc4_hdmi_conn_state(connector->state); - struct vc4_hdmi_connector_state *new_state = - kzalloc(sizeof(*new_state), GFP_KERNEL); - - if (connector->state) - __drm_atomic_helper_connector_destroy_state(connector->state); - - kfree(old_state); - __drm_atomic_helper_connector_reset(connector, &new_state->base); - - if (!new_state) - return; - - new_state->base.max_bpc = 8; - new_state->base.max_requested_bpc = 8; - new_state->output_format = VC4_HDMI_OUTPUT_RGB; - new_state->broadcast_rgb = VC4_HDMI_BROADCAST_RGB_AUTO; + drm_atomic_helper_connector_reset(connector); + __drm_atomic_helper_connector_hdmi_reset(connector, connector->state); drm_atomic_helper_connector_tv_margins_reset(connector); } -static struct drm_connector_state * -vc4_hdmi_connector_duplicate_state(struct drm_connector *connector) -{ - struct drm_connector_state *conn_state = connector->state; - struct vc4_hdmi_connector_state *vc4_state = conn_state_to_vc4_hdmi_conn_state(conn_state); - struct vc4_hdmi_connector_state *new_state; - - new_state = kzalloc(sizeof(*new_state), GFP_KERNEL); - if (!new_state) - return NULL; - - new_state->tmds_char_rate = vc4_state->tmds_char_rate; - new_state->output_bpc = vc4_state->output_bpc; - new_state->output_format = vc4_state->output_format; - new_state->broadcast_rgb = vc4_state->broadcast_rgb; - __drm_atomic_helper_connector_duplicate_state(connector, &new_state->base); - - return &new_state->base; -} - -static void vc4_hdmi_connector_destroy_state(struct drm_connector *connector, - struct drm_connector_state *state) -{ - struct vc4_hdmi_connector_state *vc4_state = - conn_state_to_vc4_hdmi_conn_state(state); - - __drm_atomic_helper_connector_destroy_state(state); - kfree(vc4_state); -} - static const struct drm_connector_funcs vc4_hdmi_connector_funcs = { .fill_modes = drm_helper_probe_single_connector_modes, .reset = vc4_hdmi_connector_reset, - .atomic_duplicate_state = vc4_hdmi_connector_duplicate_state, - .atomic_destroy_state = vc4_hdmi_connector_destroy_state, - .atomic_get_property = vc4_hdmi_connector_get_property, - .atomic_set_property = vc4_hdmi_connector_set_property, + .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, }; static const struct drm_connector_helper_funcs vc4_hdmi_connector_helper_funcs = { .detect_ctx = vc4_hdmi_connector_detect_ctx, .get_modes = vc4_hdmi_connector_get_modes, .atomic_check = vc4_hdmi_connector_atomic_check, }; -static const struct drm_prop_enum_list broadcast_rgb_names[] = { - { VC4_HDMI_BROADCAST_RGB_AUTO, "Automatic" }, - { VC4_HDMI_BROADCAST_RGB_FULL, "Full" }, - { VC4_HDMI_BROADCAST_RGB_LIMITED, "Limited 16:235" }, -}; - -static void -vc4_hdmi_attach_broadcast_rgb_property(struct drm_device *dev, - struct vc4_hdmi *vc4_hdmi) -{ - struct drm_property *prop = vc4_hdmi->broadcast_rgb_property; - - if (!prop) { - prop = drm_property_create_enum(dev, DRM_MODE_PROP_ENUM, - "Broadcast RGB", - broadcast_rgb_names, - ARRAY_SIZE(broadcast_rgb_names)); - if (!prop) - return; - - vc4_hdmi->broadcast_rgb_property = prop; - } - - drm_object_attach_property(&vc4_hdmi->connector.base, prop, - VC4_HDMI_BROADCAST_RGB_AUTO); -} +static const struct drm_connector_hdmi_funcs vc4_hdmi_hdmi_connector_funcs; static int vc4_hdmi_connector_init(struct drm_device *dev, struct vc4_hdmi *vc4_hdmi) { struct drm_connector *connector = &vc4_hdmi->connector; struct drm_encoder *encoder = &vc4_hdmi->encoder.base; + unsigned int max_bpc = 8; int ret; - ret = drmm_connector_init(dev, connector, - &vc4_hdmi_connector_funcs, - DRM_MODE_CONNECTOR_HDMIA, - vc4_hdmi->ddc); + if (vc4_hdmi->variant->supports_hdr) + max_bpc = 12; + + ret = drmm_connector_hdmi_init(dev, connector, + "Broadcom", "Videocore", + &vc4_hdmi_connector_funcs, + &vc4_hdmi_hdmi_connector_funcs, + DRM_MODE_CONNECTOR_HDMIA, + vc4_hdmi->ddc, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV422) | + BIT(HDMI_COLORSPACE_YUV444), + max_bpc); if (ret) return ret; drm_connector_helper_add(connector, &vc4_hdmi_connector_helper_funcs); @@ -761,34 +616,31 @@ static int vc4_hdmi_connector_init(struct drm_device *dev, if (ret) return ret; drm_connector_attach_colorspace_property(connector); drm_connector_attach_tv_margin_properties(connector); - drm_connector_attach_max_bpc_property(connector, 8, 12); connector->polled = (DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT); connector->interlace_allowed = 1; connector->doublescan_allowed = 0; connector->stereo_allowed = 1; - if (vc4_hdmi->variant->supports_hdr) - drm_connector_attach_hdr_output_metadata_property(connector); - - vc4_hdmi_attach_broadcast_rgb_property(dev, vc4_hdmi); + ret = drm_connector_attach_broadcast_rgb_property(connector); + if (ret) + return ret; drm_connector_attach_encoder(connector, encoder); return 0; } -static int vc4_hdmi_stop_packet(struct drm_encoder *encoder, +static int vc4_hdmi_stop_packet(struct vc4_hdmi *vc4_hdmi, enum hdmi_infoframe_type type, bool poll) { - struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder); struct drm_device *drm = vc4_hdmi->connector.dev; u32 packet_id = type - 0x80; unsigned long flags; int ret = 0; int idx; @@ -808,41 +660,45 @@ static int vc4_hdmi_stop_packet(struct drm_encoder *encoder, drm_dev_exit(idx); return ret; } -static void vc4_hdmi_write_infoframe(struct drm_encoder *encoder, - union hdmi_infoframe *frame) +static int vc4_hdmi_write_infoframe(struct drm_connector *connector, + enum hdmi_infoframe_type type, + const u8 *infoframe, size_t len) { - struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder); - struct drm_device *drm = vc4_hdmi->connector.dev; - u32 packet_id = frame->any.type - 0x80; + struct vc4_hdmi *vc4_hdmi = connector_to_vc4_hdmi(connector); + struct drm_device *drm = connector->dev; + u32 packet_id = type - 0x80; const struct vc4_hdmi_register *ram_packet_start = &vc4_hdmi->variant->registers[HDMI_RAM_PACKET_START]; u32 packet_reg = ram_packet_start->offset + VC4_HDMI_PACKET_STRIDE * packet_id; u32 packet_reg_next = ram_packet_start->offset + VC4_HDMI_PACKET_STRIDE * (packet_id + 1); void __iomem *base = __vc4_hdmi_get_field_base(vc4_hdmi, ram_packet_start->reg); uint8_t buffer[VC4_HDMI_PACKET_STRIDE] = {}; unsigned long flags; - ssize_t len, i; + ssize_t i; int ret; int idx; if (!drm_dev_enter(drm, &idx)) - return; + return 0; + + if (len > sizeof(buffer)) { + ret = -ENOMEM; + goto out; + } + + memcpy(buffer, infoframe, len); WARN_ONCE(!(HDMI_READ(HDMI_RAM_PACKET_CONFIG) & VC4_HDMI_RAM_PACKET_ENABLE), "Packet RAM has to be on to store the packet."); - len = hdmi_infoframe_pack(frame, buffer, sizeof(buffer)); - if (len < 0) - goto out; - - ret = vc4_hdmi_stop_packet(encoder, frame->any.type, true); + ret = vc4_hdmi_stop_packet(vc4_hdmi, type, true); if (ret) { DRM_ERROR("Failed to wait for infoframe to go idle: %d\n", ret); goto out; } @@ -880,134 +736,11 @@ static void vc4_hdmi_write_infoframe(struct drm_encoder *encoder, if (ret) DRM_ERROR("Failed to wait for infoframe to start: %d\n", ret); out: drm_dev_exit(idx); -} - -static void vc4_hdmi_avi_infoframe_colorspace(struct hdmi_avi_infoframe *frame, - enum vc4_hdmi_output_format fmt) -{ - switch (fmt) { - case VC4_HDMI_OUTPUT_RGB: - frame->colorspace = HDMI_COLORSPACE_RGB; - break; - - case VC4_HDMI_OUTPUT_YUV420: - frame->colorspace = HDMI_COLORSPACE_YUV420; - break; - - case VC4_HDMI_OUTPUT_YUV422: - frame->colorspace = HDMI_COLORSPACE_YUV422; - break; - - case VC4_HDMI_OUTPUT_YUV444: - frame->colorspace = HDMI_COLORSPACE_YUV444; - break; - - default: - break; - } -} - -static void vc4_hdmi_set_avi_infoframe(struct drm_encoder *encoder) -{ - struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder); - struct drm_connector *connector = &vc4_hdmi->connector; - struct drm_connector_state *cstate = connector->state; - struct vc4_hdmi_connector_state *vc4_state = - conn_state_to_vc4_hdmi_conn_state(cstate); - const struct drm_display_mode *mode = &vc4_hdmi->saved_adjusted_mode; - union hdmi_infoframe frame; - int ret; - - lockdep_assert_held(&vc4_hdmi->mutex); - - ret = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi, - connector, mode); - if (ret < 0) { - DRM_ERROR("couldn't fill AVI infoframe\n"); - return; - } - - drm_hdmi_avi_infoframe_quant_range(&frame.avi, - connector, mode, - vc4_hdmi_is_full_range(vc4_hdmi, vc4_state) ? - HDMI_QUANTIZATION_RANGE_FULL : - HDMI_QUANTIZATION_RANGE_LIMITED); - drm_hdmi_avi_infoframe_colorimetry(&frame.avi, cstate); - vc4_hdmi_avi_infoframe_colorspace(&frame.avi, vc4_state->output_format); - drm_hdmi_avi_infoframe_bars(&frame.avi, cstate); - - vc4_hdmi_write_infoframe(encoder, &frame); -} - -static void vc4_hdmi_set_spd_infoframe(struct drm_encoder *encoder) -{ - union hdmi_infoframe frame; - int ret; - - ret = hdmi_spd_infoframe_init(&frame.spd, "Broadcom", "Videocore"); - if (ret < 0) { - DRM_ERROR("couldn't fill SPD infoframe\n"); - return; - } - - frame.spd.sdi = HDMI_SPD_SDI_PC; - - vc4_hdmi_write_infoframe(encoder, &frame); -} - -static void vc4_hdmi_set_audio_infoframe(struct drm_encoder *encoder) -{ - struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder); - struct hdmi_audio_infoframe *audio = &vc4_hdmi->audio.infoframe; - union hdmi_infoframe frame; - - memcpy(&frame.audio, audio, sizeof(*audio)); - - if (vc4_hdmi->packet_ram_enabled) - vc4_hdmi_write_infoframe(encoder, &frame); -} - -static void vc4_hdmi_set_hdr_infoframe(struct drm_encoder *encoder) -{ - struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder); - struct drm_connector *connector = &vc4_hdmi->connector; - struct drm_connector_state *conn_state = connector->state; - union hdmi_infoframe frame; - - lockdep_assert_held(&vc4_hdmi->mutex); - - if (!vc4_hdmi->variant->supports_hdr) - return; - - if (!conn_state->hdr_output_metadata) - return; - - if (drm_hdmi_infoframe_set_hdr_metadata(&frame.drm, conn_state)) - return; - - vc4_hdmi_write_infoframe(encoder, &frame); -} - -static void vc4_hdmi_set_infoframes(struct drm_encoder *encoder) -{ - struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder); - - lockdep_assert_held(&vc4_hdmi->mutex); - - vc4_hdmi_set_avi_infoframe(encoder); - vc4_hdmi_set_spd_infoframe(encoder); - /* - * If audio was streaming, then we need to reenabled the audio - * infoframe here during encoder_enable. - */ - if (vc4_hdmi->audio.streaming) - vc4_hdmi_set_audio_infoframe(encoder); - - vc4_hdmi_set_hdr_infoframe(encoder); + return ret; } #define SCRAMBLING_POLLING_DELAY_MS 1000 static void vc4_hdmi_enable_scrambling(struct drm_encoder *encoder) @@ -1172,12 +905,10 @@ static void vc4_hdmi_encoder_post_crtc_powerdown(struct drm_encoder *encoder, static void vc4_hdmi_csc_setup(struct vc4_hdmi *vc4_hdmi, struct drm_connector_state *state, const struct drm_display_mode *mode) { - struct vc4_hdmi_connector_state *vc4_state = - conn_state_to_vc4_hdmi_conn_state(state); struct drm_device *drm = vc4_hdmi->connector.dev; unsigned long flags; u32 csc_ctl; int idx; @@ -1187,11 +918,11 @@ static void vc4_hdmi_csc_setup(struct vc4_hdmi *vc4_hdmi, spin_lock_irqsave(&vc4_hdmi->hw_lock, flags); csc_ctl = VC4_SET_FIELD(VC4_HD_CSC_CTL_ORDER_BGR, VC4_HD_CSC_CTL_ORDER); - if (!vc4_hdmi_is_full_range(vc4_hdmi, vc4_state)) { + if (state->hdmi.is_limited_range) { /* CEA VICs other than #1 requre limited range RGB * output unless overridden by an AVI infoframe. * Apply a colorspace conversion to squash 0-255 down * to 16-235. The matrix here is: * @@ -1410,13 +1141,11 @@ static const u16 static void vc5_hdmi_csc_setup(struct vc4_hdmi *vc4_hdmi, struct drm_connector_state *state, const struct drm_display_mode *mode) { struct drm_device *drm = vc4_hdmi->connector.dev; - struct vc4_hdmi_connector_state *vc4_state = - conn_state_to_vc4_hdmi_conn_state(state); - unsigned int lim_range = vc4_hdmi_is_full_range(vc4_hdmi, vc4_state) ? 0 : 1; + unsigned int lim_range = state->hdmi.is_limited_range ? 1 : 0; unsigned long flags; const u16 (*csc)[4]; u32 if_cfg = 0; u32 if_xbar = 0x543210; u32 csc_chan_ctl = 0; @@ -1427,18 +1156,18 @@ static void vc5_hdmi_csc_setup(struct vc4_hdmi *vc4_hdmi, if (!drm_dev_enter(drm, &idx)) return; spin_lock_irqsave(&vc4_hdmi->hw_lock, flags); - switch (vc4_state->output_format) { - case VC4_HDMI_OUTPUT_YUV444: + switch (state->hdmi.output_format) { + case HDMI_COLORSPACE_YUV444: csc = vc5_hdmi_find_yuv_csc_coeffs(vc4_hdmi, state->colorspace, !!lim_range); vc5_hdmi_set_csc_coeffs_swap(vc4_hdmi, csc); break; - case VC4_HDMI_OUTPUT_YUV422: + case HDMI_COLORSPACE_YUV422: csc = vc5_hdmi_find_yuv_csc_coeffs(vc4_hdmi, state->colorspace, !!lim_range); csc_ctl |= VC4_SET_FIELD(VC5_MT_CP_CSC_CTL_FILTER_MODE_444_TO_422_STANDARD, VC5_MT_CP_CSC_CTL_FILTER_MODE_444_TO_422) | VC5_MT_CP_CSC_CTL_USE_444_TO_422 | @@ -1451,11 +1180,11 @@ static void vc5_hdmi_csc_setup(struct vc4_hdmi *vc4_hdmi, VC5_DVP_HT_VEC_INTERFACE_CFG_SEL_422); vc5_hdmi_set_csc_coeffs(vc4_hdmi, csc); break; - case VC4_HDMI_OUTPUT_RGB: + case HDMI_COLORSPACE_RGB: if_xbar = 0x354021; vc5_hdmi_set_csc_coeffs(vc4_hdmi, vc5_hdmi_csc_full_rgb_to_rgb[lim_range]); break; @@ -1540,12 +1269,10 @@ static void vc4_hdmi_set_timings(struct vc4_hdmi *vc4_hdmi, static void vc5_hdmi_set_timings(struct vc4_hdmi *vc4_hdmi, struct drm_connector_state *state, const struct drm_display_mode *mode) { struct drm_device *drm = vc4_hdmi->connector.dev; - const struct vc4_hdmi_connector_state *vc4_state = - conn_state_to_vc4_hdmi_conn_state(state); bool hsync_pos = mode->flags & DRM_MODE_FLAG_PHSYNC; bool vsync_pos = mode->flags & DRM_MODE_FLAG_PVSYNC; bool interlaced = mode->flags & DRM_MODE_FLAG_INTERLACE; u32 pixel_rep = (mode->flags & DRM_MODE_FLAG_DBLCLK) ? 2 : 1; u32 verta = (VC4_SET_FIELD(mode->crtc_vsync_end - mode->crtc_vsync_start, @@ -1593,11 +1320,11 @@ static void vc5_hdmi_set_timings(struct vc4_hdmi *vc4_hdmi, HDMI_WRITE(HDMI_VERTA1, verta); HDMI_WRITE(HDMI_VERTB0, vertb_even); HDMI_WRITE(HDMI_VERTB1, vertb); - switch (vc4_state->output_bpc) { + switch (state->hdmi.output_bpc) { case 12: gcp = 6; break; case 10: gcp = 5; @@ -1610,11 +1337,11 @@ static void vc5_hdmi_set_timings(struct vc4_hdmi *vc4_hdmi, /* * YCC422 is always 36-bit and not considered deep colour so * doesn't signal in GCP. */ - if (vc4_state->output_format == VC4_HDMI_OUTPUT_YUV422) { + if (state->hdmi.output_format == HDMI_COLORSPACE_YUV422) { gcp = 0; } reg = HDMI_READ(HDMI_DEEP_COLOR_CONFIG_1); reg &= ~(VC5_HDMI_DEEP_COLOR_CONFIG_1_INIT_PACK_PHASE_MASK | @@ -1694,14 +1421,12 @@ static void vc4_hdmi_encoder_pre_crtc_configure(struct drm_encoder *encoder, struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder); struct drm_device *drm = vc4_hdmi->connector.dev; struct drm_connector *connector = &vc4_hdmi->connector; struct drm_connector_state *conn_state = drm_atomic_get_new_connector_state(state, connector); - struct vc4_hdmi_connector_state *vc4_conn_state = - conn_state_to_vc4_hdmi_conn_state(conn_state); const struct drm_display_mode *mode = &vc4_hdmi->saved_adjusted_mode; - unsigned long tmds_char_rate = vc4_conn_state->tmds_char_rate; + unsigned long long tmds_char_rate = conn_state->hdmi.tmds_char_rate; unsigned long bvb_rate, hsm_rate; unsigned long flags; int ret; int idx; @@ -1732,11 +1457,11 @@ static void vc4_hdmi_encoder_pre_crtc_configure(struct drm_encoder *encoder, * Additionally, the AXI clock needs to be at least 25% of * pixel clock, but HSM ends up being the limiting factor. */ hsm_rate = max_t(unsigned long, HSM_MIN_CLOCK_FREQ, - (tmds_char_rate / 100) * 101); + div_u64(tmds_char_rate, 100) * 101); ret = clk_set_min_rate(vc4_hdmi->hsm_clock, hsm_rate); if (ret) { DRM_ERROR("Failed to set HSM clock rate: %d\n", ret); goto err_put_runtime_pm; } @@ -1774,11 +1499,11 @@ static void vc4_hdmi_encoder_pre_crtc_configure(struct drm_encoder *encoder, DRM_ERROR("Failed to turn on pixel bvb clock: %d\n", ret); goto err_disable_pixel_clock; } if (vc4_hdmi->variant->phy_init) - vc4_hdmi->variant->phy_init(vc4_hdmi, vc4_conn_state); + vc4_hdmi->variant->phy_init(vc4_hdmi, conn_state); spin_lock_irqsave(&vc4_hdmi->hw_lock, flags); HDMI_WRITE(HDMI_SCHEDULER_CONTROL, HDMI_READ(HDMI_SCHEDULER_CONTROL) | @@ -1839,11 +1564,12 @@ static void vc4_hdmi_encoder_pre_crtc_enable(struct drm_encoder *encoder, static void vc4_hdmi_encoder_post_crtc_enable(struct drm_encoder *encoder, struct drm_atomic_state *state) { struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder); - struct drm_device *drm = vc4_hdmi->connector.dev; + struct drm_connector *connector = &vc4_hdmi->connector; + struct drm_device *drm = connector->dev; const struct drm_display_mode *mode = &vc4_hdmi->saved_adjusted_mode; struct drm_display_info *display = &vc4_hdmi->connector.display_info; bool hsync_pos = mode->flags & DRM_MODE_FLAG_PHSYNC; bool vsync_pos = mode->flags & DRM_MODE_FLAG_PVSYNC; unsigned long flags; @@ -1905,11 +1631,11 @@ static void vc4_hdmi_encoder_post_crtc_enable(struct drm_encoder *encoder, VC4_HDMI_RAM_PACKET_ENABLE); spin_unlock_irqrestore(&vc4_hdmi->hw_lock, flags); vc4_hdmi->packet_ram_enabled = true; - vc4_hdmi_set_infoframes(encoder); + drm_atomic_helper_connector_hdmi_update_infoframes(connector, state); } vc4_hdmi_recenter_fifo(vc4_hdmi); vc4_hdmi_enable_scrambling(encoder); @@ -1922,112 +1648,25 @@ static void vc4_hdmi_encoder_post_crtc_enable(struct drm_encoder *encoder, static void vc4_hdmi_encoder_atomic_mode_set(struct drm_encoder *encoder, struct drm_crtc_state *crtc_state, struct drm_connector_state *conn_state) { struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder); - struct vc4_hdmi_connector_state *vc4_state = - conn_state_to_vc4_hdmi_conn_state(conn_state); mutex_lock(&vc4_hdmi->mutex); drm_mode_copy(&vc4_hdmi->saved_adjusted_mode, &crtc_state->adjusted_mode); - vc4_hdmi->output_bpc = vc4_state->output_bpc; - vc4_hdmi->output_format = vc4_state->output_format; + vc4_hdmi->output_bpc = conn_state->hdmi.output_bpc; + vc4_hdmi->output_format = conn_state->hdmi.output_format; mutex_unlock(&vc4_hdmi->mutex); } -static bool -vc4_hdmi_sink_supports_format_bpc(const struct vc4_hdmi *vc4_hdmi, - const struct drm_display_info *info, - const struct drm_display_mode *mode, - unsigned int format, unsigned int bpc) -{ - struct drm_device *dev = vc4_hdmi->connector.dev; - u8 vic = drm_match_cea_mode(mode); - - if (vic == 1 && bpc != 8) { - drm_dbg(dev, "VIC1 requires a bpc of 8, got %u\n", bpc); - return false; - } - - if (!info->is_hdmi && - (format != VC4_HDMI_OUTPUT_RGB || bpc != 8)) { - drm_dbg(dev, "DVI Monitors require an RGB output at 8 bpc\n"); - return false; - } - - switch (format) { - case VC4_HDMI_OUTPUT_RGB: - drm_dbg(dev, "RGB Format, checking the constraints.\n"); - - if (!(info->color_formats & DRM_COLOR_FORMAT_RGB444)) - return false; - - if (bpc == 10 && !(info->edid_hdmi_rgb444_dc_modes & DRM_EDID_HDMI_DC_30)) { - drm_dbg(dev, "10 BPC but sink doesn't support Deep Color 30.\n"); - return false; - } - - if (bpc == 12 && !(info->edid_hdmi_rgb444_dc_modes & DRM_EDID_HDMI_DC_36)) { - drm_dbg(dev, "12 BPC but sink doesn't support Deep Color 36.\n"); - return false; - } - - drm_dbg(dev, "RGB format supported in that configuration.\n"); - - return true; - - case VC4_HDMI_OUTPUT_YUV422: - drm_dbg(dev, "YUV422 format, checking the constraints.\n"); - - if (!(info->color_formats & DRM_COLOR_FORMAT_YCBCR422)) { - drm_dbg(dev, "Sink doesn't support YUV422.\n"); - return false; - } - - if (bpc != 12) { - drm_dbg(dev, "YUV422 only supports 12 bpc.\n"); - return false; - } - - drm_dbg(dev, "YUV422 format supported in that configuration.\n"); - - return true; - - case VC4_HDMI_OUTPUT_YUV444: - drm_dbg(dev, "YUV444 format, checking the constraints.\n"); - - if (!(info->color_formats & DRM_COLOR_FORMAT_YCBCR444)) { - drm_dbg(dev, "Sink doesn't support YUV444.\n"); - return false; - } - - if (bpc == 10 && !(info->edid_hdmi_ycbcr444_dc_modes & DRM_EDID_HDMI_DC_30)) { - drm_dbg(dev, "10 BPC but sink doesn't support Deep Color 30.\n"); - return false; - } - - if (bpc == 12 && !(info->edid_hdmi_ycbcr444_dc_modes & DRM_EDID_HDMI_DC_36)) { - drm_dbg(dev, "12 BPC but sink doesn't support Deep Color 36.\n"); - return false; - } - - drm_dbg(dev, "YUV444 format supported in that configuration.\n"); - - return true; - } - - return false; -} - static enum drm_mode_status -vc4_hdmi_encoder_clock_valid(const struct vc4_hdmi *vc4_hdmi, - const struct drm_display_mode *mode, - unsigned long long clock) +vc4_hdmi_connector_clock_valid(const struct drm_connector *connector, + const struct drm_display_mode *mode, + unsigned long long clock) { - const struct drm_connector *connector = &vc4_hdmi->connector; - const struct drm_display_info *info = &connector->display_info; + const struct vc4_hdmi *vc4_hdmi = connector_to_vc4_hdmi(connector); struct vc4_dev *vc4 = to_vc4_dev(connector->dev); if (clock > vc4_hdmi->variant->max_pixel_clock) return MODE_CLOCK_HIGH; @@ -2038,148 +1677,29 @@ vc4_hdmi_encoder_clock_valid(const struct vc4_hdmi *vc4_hdmi, if (!vc4->hvs->vc5_hdmi_enable_4096by2160 && mode->hdisplay > 3840 && mode->vdisplay >= 2160 && drm_mode_vrefresh(mode) >= 50) return MODE_CLOCK_HIGH; - if (info->max_tmds_clock && clock > (info->max_tmds_clock * 1000)) - return MODE_CLOCK_HIGH; - return MODE_OK; } -static unsigned long long -vc4_hdmi_encoder_compute_mode_clock(const struct drm_display_mode *mode, - unsigned int bpc, - enum vc4_hdmi_output_format fmt) -{ - unsigned long long clock = mode->clock * 1000ULL; - - if (mode->flags & DRM_MODE_FLAG_DBLCLK) - clock = clock * 2; - - if (fmt == VC4_HDMI_OUTPUT_YUV422) - bpc = 8; - - clock = clock * bpc; - do_div(clock, 8); - - return clock; -} - -static int -vc4_hdmi_encoder_compute_clock(const struct vc4_hdmi *vc4_hdmi, - struct vc4_hdmi_connector_state *vc4_state, - const struct drm_display_mode *mode, - unsigned int bpc, unsigned int fmt) -{ - unsigned long long clock; - - clock = vc4_hdmi_encoder_compute_mode_clock(mode, bpc, fmt); - if (vc4_hdmi_encoder_clock_valid(vc4_hdmi, mode, clock) != MODE_OK) - return -EINVAL; - - vc4_state->tmds_char_rate = clock; - - return 0; -} - -static int -vc4_hdmi_encoder_compute_format(const struct vc4_hdmi *vc4_hdmi, - struct vc4_hdmi_connector_state *vc4_state, - const struct drm_display_mode *mode, - unsigned int bpc) -{ - struct drm_device *dev = vc4_hdmi->connector.dev; - const struct drm_connector *connector = &vc4_hdmi->connector; - const struct drm_display_info *info = &connector->display_info; - unsigned int format; - - drm_dbg(dev, "Trying with an RGB output\n"); - - format = VC4_HDMI_OUTPUT_RGB; - if (vc4_hdmi_sink_supports_format_bpc(vc4_hdmi, info, mode, format, bpc)) { - int ret; - - ret = vc4_hdmi_encoder_compute_clock(vc4_hdmi, vc4_state, - mode, bpc, format); - if (!ret) { - vc4_state->output_format = format; - return 0; - } - } - - drm_dbg(dev, "Failed, Trying with an YUV422 output\n"); - - format = VC4_HDMI_OUTPUT_YUV422; - if (vc4_hdmi_sink_supports_format_bpc(vc4_hdmi, info, mode, format, bpc)) { - int ret; - - ret = vc4_hdmi_encoder_compute_clock(vc4_hdmi, vc4_state, - mode, bpc, format); - if (!ret) { - vc4_state->output_format = format; - return 0; - } - } - - drm_dbg(dev, "Failed. No Format Supported for that bpc count.\n"); - - return -EINVAL; -} - -static int -vc4_hdmi_encoder_compute_config(const struct vc4_hdmi *vc4_hdmi, - struct vc4_hdmi_connector_state *vc4_state, - const struct drm_display_mode *mode) -{ - struct drm_device *dev = vc4_hdmi->connector.dev; - struct drm_connector_state *conn_state = &vc4_state->base; - unsigned int max_bpc = clamp_t(unsigned int, conn_state->max_bpc, 8, 12); - unsigned int bpc; - int ret; - - for (bpc = max_bpc; bpc >= 8; bpc -= 2) { - drm_dbg(dev, "Trying with a %d bpc output\n", bpc); - - ret = vc4_hdmi_encoder_compute_format(vc4_hdmi, vc4_state, - mode, bpc); - if (ret) - continue; - - vc4_state->output_bpc = bpc; - - drm_dbg(dev, - "Mode %ux%u @ %uHz: Found configuration: bpc: %u, fmt: %s, clock: %llu\n", - mode->hdisplay, mode->vdisplay, drm_mode_vrefresh(mode), - vc4_state->output_bpc, - vc4_hdmi_output_fmt_str(vc4_state->output_format), - vc4_state->tmds_char_rate); - - break; - } - - return ret; -} +static const struct drm_connector_hdmi_funcs vc4_hdmi_hdmi_connector_funcs = { + .tmds_char_rate_valid = vc4_hdmi_connector_clock_valid, + .write_infoframe = vc4_hdmi_write_infoframe, +}; #define WIFI_2_4GHz_CH1_MIN_FREQ 2400000000ULL #define WIFI_2_4GHz_CH1_MAX_FREQ 2422000000ULL static int vc4_hdmi_encoder_atomic_check(struct drm_encoder *encoder, struct drm_crtc_state *crtc_state, struct drm_connector_state *conn_state) { struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder); - struct drm_connector *connector = &vc4_hdmi->connector; - struct drm_connector_state *old_conn_state = - drm_atomic_get_old_connector_state(conn_state->state, connector); - struct vc4_hdmi_connector_state *old_vc4_state = - conn_state_to_vc4_hdmi_conn_state(old_conn_state); - struct vc4_hdmi_connector_state *vc4_state = conn_state_to_vc4_hdmi_conn_state(conn_state); struct drm_display_mode *mode = &crtc_state->adjusted_mode; unsigned long long tmds_char_rate = mode->clock * 1000; unsigned long long tmds_bit_rate; - int ret; if (vc4_hdmi->variant->unsupported_odd_h_timings) { if (mode->flags & DRM_MODE_FLAG_DBLCLK) { /* Only try to fixup DBLCLK modes to get 480i and 576i * working. @@ -2211,35 +1731,28 @@ static int vc4_hdmi_encoder_atomic_check(struct drm_encoder *encoder, tmds_bit_rate <= WIFI_2_4GHz_CH1_MAX_FREQ)) { mode->clock = 238560; tmds_char_rate = mode->clock * 1000; } - ret = vc4_hdmi_encoder_compute_config(vc4_hdmi, vc4_state, mode); - if (ret) - return ret; - - /* vc4_hdmi_encoder_compute_config may have changed output_bpc and/or output_format */ - if (vc4_state->output_bpc != old_vc4_state->output_bpc || - vc4_state->output_format != old_vc4_state->output_format) - crtc_state->mode_changed = true; - return 0; } static enum drm_mode_status vc4_hdmi_encoder_mode_valid(struct drm_encoder *encoder, const struct drm_display_mode *mode) { struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder); + unsigned long long rate; if (vc4_hdmi->variant->unsupported_odd_h_timings && !(mode->flags & DRM_MODE_FLAG_DBLCLK) && ((mode->hdisplay % 2) || (mode->hsync_start % 2) || (mode->hsync_end % 2) || (mode->htotal % 2))) return MODE_H_ILLEGAL; - return vc4_hdmi_encoder_clock_valid(vc4_hdmi, mode, mode->clock * 1000); + rate = drm_hdmi_compute_mode_clock(mode, 8, HDMI_COLORSPACE_RGB); + return vc4_hdmi_connector_clock_valid(&vc4_hdmi->connector, mode, rate); } static const struct drm_encoder_helper_funcs vc4_hdmi_encoder_helper_funcs = { .atomic_check = vc4_hdmi_encoder_atomic_check, .atomic_mode_set = vc4_hdmi_encoder_atomic_mode_set, @@ -2427,19 +1940,18 @@ static int vc4_hdmi_audio_startup(struct device *dev, void *data) return ret; } static void vc4_hdmi_audio_reset(struct vc4_hdmi *vc4_hdmi) { - struct drm_encoder *encoder = &vc4_hdmi->encoder.base; struct device *dev = &vc4_hdmi->pdev->dev; unsigned long flags; int ret; lockdep_assert_held(&vc4_hdmi->mutex); vc4_hdmi->audio.streaming = false; - ret = vc4_hdmi_stop_packet(encoder, HDMI_INFOFRAME_TYPE_AUDIO, false); + ret = vc4_hdmi_stop_packet(vc4_hdmi, HDMI_INFOFRAME_TYPE_AUDIO, false); if (ret) dev_err(dev, "Failed to stop audio infoframe: %d\n", ret); spin_lock_irqsave(&vc4_hdmi->hw_lock, flags); @@ -2526,11 +2038,11 @@ static int vc4_hdmi_audio_prepare(struct device *dev, void *data, struct hdmi_codec_daifmt *daifmt, struct hdmi_codec_params *params) { struct vc4_hdmi *vc4_hdmi = dev_get_drvdata(dev); struct drm_device *drm = vc4_hdmi->connector.dev; - struct drm_encoder *encoder = &vc4_hdmi->encoder.base; + struct drm_connector *connector = &vc4_hdmi->connector; unsigned int sample_rate = params->sample_rate; unsigned int channels = params->channels; unsigned long flags; u32 audio_packet_config, channel_mask; u32 channel_map; @@ -2603,12 +2115,14 @@ static int vc4_hdmi_audio_prepare(struct device *dev, void *data, vc4_hdmi_set_n_cts(vc4_hdmi, sample_rate); spin_unlock_irqrestore(&vc4_hdmi->hw_lock, flags); - memcpy(&vc4_hdmi->audio.infoframe, ¶ms->cea, sizeof(params->cea)); - vc4_hdmi_set_audio_infoframe(encoder); + ret = drm_atomic_helper_connector_hdmi_update_audio_infoframe(connector, + ¶ms->cea); + if (ret) + goto out_dev_exit; out_dev_exit: drm_dev_exit(idx); out: mutex_unlock(&vc4_hdmi->mutex); diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.h b/drivers/gpu/drm/vc4/vc4_hdmi.h index 934d5d61485a..b37f1d2c3fe5 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.h +++ b/drivers/gpu/drm/vc4/vc4_hdmi.h @@ -8,11 +8,10 @@ #include "vc4_drv.h" struct vc4_hdmi; struct vc4_hdmi_register; -struct vc4_hdmi_connector_state; enum vc4_hdmi_phy_channel { PHY_LANE_0 = 0, PHY_LANE_1, PHY_LANE_2, @@ -74,11 +73,11 @@ struct vc4_hdmi_variant { struct drm_connector_state *state, const struct drm_display_mode *mode); /* Callback to initialize the PHY according to the connector state */ void (*phy_init)(struct vc4_hdmi *vc4_hdmi, - struct vc4_hdmi_connector_state *vc4_conn_state); + struct drm_connector_state *conn_state); /* Callback to disable the PHY */ void (*phy_disable)(struct vc4_hdmi *vc4_hdmi); /* Callback to enable the RNG in the PHY */ @@ -108,23 +107,10 @@ struct vc4_hdmi_audio { struct hdmi_audio_infoframe infoframe; struct platform_device *codec_pdev; bool streaming; }; -enum vc4_hdmi_output_format { - VC4_HDMI_OUTPUT_RGB, - VC4_HDMI_OUTPUT_YUV422, - VC4_HDMI_OUTPUT_YUV444, - VC4_HDMI_OUTPUT_YUV420, -}; - -enum vc4_hdmi_broadcast_rgb { - VC4_HDMI_BROADCAST_RGB_AUTO, - VC4_HDMI_BROADCAST_RGB_FULL, - VC4_HDMI_BROADCAST_RGB_LIMITED, -}; - /* General HDMI hardware state. */ struct vc4_hdmi { struct vc4_hdmi_audio audio; struct platform_device *pdev; @@ -133,12 +119,10 @@ struct vc4_hdmi { struct vc4_encoder encoder; struct drm_connector connector; struct delayed_work scrambling_work; - struct drm_property *broadcast_rgb_property; - struct i2c_adapter *ddc; void __iomem *hdmicore_regs; void __iomem *hd_regs; /* VC5 Only */ @@ -216,20 +200,21 @@ struct vc4_hdmi { * the scrambler on? Protected by @mutex. */ bool scdc_enabled; /** - * @output_bpc: Copy of @vc4_connector_state.output_bpc for use - * outside of KMS hooks. Protected by @mutex. + * @output_bpc: Copy of @drm_connector_state.hdmi.output_bpc for + * use outside of KMS hooks. Protected by @mutex. */ unsigned int output_bpc; /** - * @output_format: Copy of @vc4_connector_state.output_format - * for use outside of KMS hooks. Protected by @mutex. + * @output_format: Copy of + * @drm_connector_state.hdmi.output_format for use outside of + * KMS hooks. Protected by @mutex. */ - enum vc4_hdmi_output_format output_format; + enum hdmi_colorspace output_format; }; #define connector_to_vc4_hdmi(_connector) \ container_of_const(_connector, struct vc4_hdmi, connector) @@ -238,29 +223,18 @@ encoder_to_vc4_hdmi(struct drm_encoder *encoder) { struct vc4_encoder *_encoder = to_vc4_encoder(encoder); return container_of_const(_encoder, struct vc4_hdmi, encoder); } -struct vc4_hdmi_connector_state { - struct drm_connector_state base; - unsigned long long tmds_char_rate; - unsigned int output_bpc; - enum vc4_hdmi_output_format output_format; - enum vc4_hdmi_broadcast_rgb broadcast_rgb; -}; - -#define conn_state_to_vc4_hdmi_conn_state(_state) \ - container_of_const(_state, struct vc4_hdmi_connector_state, base) - void vc4_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi, - struct vc4_hdmi_connector_state *vc4_conn_state); + struct drm_connector_state *conn_state); void vc4_hdmi_phy_disable(struct vc4_hdmi *vc4_hdmi); void vc4_hdmi_phy_rng_enable(struct vc4_hdmi *vc4_hdmi); void vc4_hdmi_phy_rng_disable(struct vc4_hdmi *vc4_hdmi); void vc5_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi, - struct vc4_hdmi_connector_state *vc4_conn_state); + struct drm_connector_state *conn_state); void vc5_hdmi_phy_disable(struct vc4_hdmi *vc4_hdmi); void vc5_hdmi_phy_rng_enable(struct vc4_hdmi *vc4_hdmi); void vc5_hdmi_phy_rng_disable(struct vc4_hdmi *vc4_hdmi); #endif /* _VC4_HDMI_H_ */ diff --git a/drivers/gpu/drm/vc4/vc4_hdmi_phy.c b/drivers/gpu/drm/vc4/vc4_hdmi_phy.c index ec24999bf96d..1f5507fc7a03 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi_phy.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi_phy.c @@ -126,11 +126,11 @@ #define VC4_HDMI_RM_FORMAT_SHIFT_MASK VC4_MASK(25, 24) #define OSCILLATOR_FREQUENCY 54000000 void vc4_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi, - struct vc4_hdmi_connector_state *conn_state) + struct drm_connector_state *conn_state) { unsigned long flags; /* PHY should be in reset, like * vc4_hdmi_encoder_disable() does. @@ -359,15 +359,15 @@ static void vc5_hdmi_reset_phy(struct vc4_hdmi *vc4_hdmi) HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0x0f); HDMI_WRITE(HDMI_TX_PHY_POWERDOWN_CTL, BIT(10)); } void vc5_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi, - struct vc4_hdmi_connector_state *conn_state) + struct drm_connector_state *conn_state) { const struct phy_lane_settings *chan0_settings, *chan1_settings, *chan2_settings, *clock_settings; const struct vc4_hdmi_variant *variant = vc4_hdmi->variant; - unsigned long long pixel_freq = conn_state->tmds_char_rate; + unsigned long long pixel_freq = conn_state->hdmi.tmds_char_rate; unsigned long long vco_freq; unsigned char word_sel; unsigned long flags; u8 vco_sel, vco_div; From patchwork Tue May 7 13:17:43 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13657041 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 4A426C25B4F for ; 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Tue, 07 May 2024 13:21:16 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1s4Kid-0000000B9le-0gyZ; Tue, 07 May 2024 13:19:02 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id D7BCB61773; Tue, 7 May 2024 13:18:54 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3C5FBC2BBFC; Tue, 7 May 2024 13:18:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1715087934; bh=mxuD7pT2tlDQ0zzNZkqWfj36MC0sF3/2cyZNsO+d0UQ=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=C7Skz4oWmm7q6tad0dSn62GOGTbg4unvNaJjxDdz2rBEV0wH/V9C3VBGle8OxXlPc YT3dFbDZD5V7apomiZ6JcF5leIFhtV9mBvsA0NsAxcudAMLiZTECdquX4KN08vnTlP oXJTWOpBnHYqozJ9Zy7xDdS0oJWZntx61iMZE2FnzGmghE53K3DSBGSHgtZnrYbZGk LSDL1Cddos0jHHTEoiI8LhwdZhS9TmdfPW0fR64mXxgKQHzQsKo5JWFo5fifdEx1Jp fGoOfAC8JKaYulPoDHt496GVfhbnosb++zyo4yulmV+6Fuj5hdSGTukjna8svQUdxb RdIGJW6PFTJlA== From: Maxime Ripard Date: Tue, 07 May 2024 15:17:43 +0200 Subject: [PATCH v13 25/28] drm/vc4: tests: Remove vc4_dummy_plane structure MIME-Version: 1.0 Message-Id: <20240507-kms-hdmi-connector-state-v13-25-8fafc5efe8be@kernel.org> References: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> In-Reply-To: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Andy Yan Cc: Hans Verkuil , Sebastian Wick , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, Maxime Ripard , =?utf-8?q?Ma=C3=ADra_Canal?= X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=3744; i=mripard@kernel.org; h=from:subject:message-id; bh=mxuD7pT2tlDQ0zzNZkqWfj36MC0sF3/2cyZNsO+d0UQ=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDGlWmp+8lCerRpqt2XrQgSm2xTAv+R1zrm7Q9rA/i199N 99a4zCpYyoLgzAng6yYIssTmbDTy9sXVznYr/wBM4eVCWQIAxenAEwkcCZjnT3Xx03q7yPWG9+w KbrE9nzF/jkpiZpNj8T2H3zItPjE39oo0zM8ksUvdt5891vjQveh94wNc2YJJfnJnUu7tfNJsqd oLOudumW5F7SD1WYwyLPPM3JXqtrb37IzUqic/cH6rsU1mpwA X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240507_061855_697817_6026935C X-CRM114-Status: GOOD ( 13.46 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The vc4_dummy_plane structure was introduced as a mean to add mock-specific fields. However, we never really used it and it's still strictly equivalent to vc4_plane (which is in the same situation vs drm_plane), so we can simply remove the vc4_dummy_plane structure and make the mock code cleaner. Reviewed-by: Maíra Canal Signed-off-by: Maxime Ripard --- drivers/gpu/drm/vc4/tests/vc4_mock.c | 6 ++---- drivers/gpu/drm/vc4/tests/vc4_mock.h | 9 ++------- drivers/gpu/drm/vc4/tests/vc4_mock_plane.c | 14 +++++--------- 3 files changed, 9 insertions(+), 20 deletions(-) diff --git a/drivers/gpu/drm/vc4/tests/vc4_mock.c b/drivers/gpu/drm/vc4/tests/vc4_mock.c index becb3dbaa548..0731a7d85d7a 100644 --- a/drivers/gpu/drm/vc4/tests/vc4_mock.c +++ b/drivers/gpu/drm/vc4/tests/vc4_mock.c @@ -107,20 +107,18 @@ static const struct vc4_mock_desc vc5_mock = ); static int __build_one_pipe(struct kunit *test, struct drm_device *drm, const struct vc4_mock_pipe_desc *pipe) { - struct vc4_dummy_plane *dummy_plane; struct drm_plane *plane; struct vc4_dummy_crtc *dummy_crtc; struct drm_crtc *crtc; unsigned int i; - dummy_plane = vc4_dummy_plane(test, drm, DRM_PLANE_TYPE_PRIMARY); - KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dummy_plane); + plane = vc4_dummy_plane(test, drm, DRM_PLANE_TYPE_PRIMARY); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, plane); - plane = &dummy_plane->plane.base; dummy_crtc = vc4_mock_pv(test, drm, plane, pipe->data); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dummy_crtc); crtc = &dummy_crtc->crtc.base; for (i = 0; i < pipe->noutputs; i++) { diff --git a/drivers/gpu/drm/vc4/tests/vc4_mock.h b/drivers/gpu/drm/vc4/tests/vc4_mock.h index 2d0b339bd9f3..002b6218960c 100644 --- a/drivers/gpu/drm/vc4/tests/vc4_mock.h +++ b/drivers/gpu/drm/vc4/tests/vc4_mock.h @@ -19,17 +19,12 @@ struct drm_crtc *vc4_find_crtc_for_encoder(struct kunit *test, return crtc; return NULL; } -struct vc4_dummy_plane { - struct vc4_plane plane; -}; - -struct vc4_dummy_plane *vc4_dummy_plane(struct kunit *test, - struct drm_device *drm, - enum drm_plane_type type); +struct drm_plane *vc4_dummy_plane(struct kunit *test, struct drm_device *drm, + enum drm_plane_type type); struct vc4_dummy_crtc { struct vc4_crtc crtc; }; diff --git a/drivers/gpu/drm/vc4/tests/vc4_mock_plane.c b/drivers/gpu/drm/vc4/tests/vc4_mock_plane.c index 62b18f5f41db..973f5f929097 100644 --- a/drivers/gpu/drm/vc4/tests/vc4_mock_plane.c +++ b/drivers/gpu/drm/vc4/tests/vc4_mock_plane.c @@ -20,28 +20,24 @@ static const struct drm_plane_funcs vc4_dummy_plane_funcs = { static const uint32_t vc4_dummy_plane_formats[] = { DRM_FORMAT_XRGB8888, }; -struct vc4_dummy_plane *vc4_dummy_plane(struct kunit *test, - struct drm_device *drm, - enum drm_plane_type type) +struct drm_plane *vc4_dummy_plane(struct kunit *test, struct drm_device *drm, + enum drm_plane_type type) { - struct vc4_dummy_plane *dummy_plane; struct drm_plane *plane; - dummy_plane = drmm_universal_plane_alloc(drm, - struct vc4_dummy_plane, plane.base, + plane = __drmm_universal_plane_alloc(drm, sizeof(struct drm_plane), 0, 0, &vc4_dummy_plane_funcs, vc4_dummy_plane_formats, ARRAY_SIZE(vc4_dummy_plane_formats), NULL, DRM_PLANE_TYPE_PRIMARY, NULL); - KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dummy_plane); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, plane); - plane = &dummy_plane->plane.base; drm_plane_helper_add(plane, &vc4_dummy_plane_helper_funcs); - return dummy_plane; + return plane; } From patchwork Tue May 7 13:17:44 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13657246 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 4ABD8C10F1A for ; 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Tue, 07 May 2024 14:31:05 +0000 Received: from sin.source.kernel.org ([2604:1380:40e1:4800::1]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1s4Kis-0000000BAGj-3J2V; Tue, 07 May 2024 13:19:16 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sin.source.kernel.org (Postfix) with ESMTP id 50684CE131F; Tue, 7 May 2024 13:19:03 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DC047C4AF68; Tue, 7 May 2024 13:18:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1715087937; bh=7kp1dFVIU1GWBJN/S2jYDRC3Mp7yeADRvgV4od+K6E0=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=CT8hK2/czlVSPWVCq+lcEXJJQ2N2KEXMXj7mVZ1MoXuYvUSMuSbT8Tfwiv3g/xcfr DyWFD+5eFmbyocOS2n8yVNmgKPYsD0imSvTqFAUO2jCWvpi9ev2/Y9JeJ+0llfiXs5 Ix46eE9ssWl265hgJqcv/adOcrdKE/39VF8FbmmICXBkSylQiTUHos/bvxfNq4OHi7 Vu5du9zGlCXlO5bW7etcDsb6sKwJQiztim1WuYFxek5K8qFd8GW4thG67DqYfYdx3u T3eQ6F5683kFD3BB7s40EZcK35oLlgvNkACZ7qTEqkGCswEFN6Wx3GLQ7S+ZIuFqkK bBS7I/ec5kGbQ== From: Maxime Ripard Date: Tue, 07 May 2024 15:17:44 +0200 Subject: [PATCH v13 26/28] drm/vc4: tests: Convert to plane creation helper MIME-Version: 1.0 Message-Id: <20240507-kms-hdmi-connector-state-v13-26-8fafc5efe8be@kernel.org> References: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> In-Reply-To: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Andy Yan Cc: Hans Verkuil , Sebastian Wick , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, Maxime Ripard , =?utf-8?q?Ma=C3=ADra_Canal?= X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; 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Reviewed-by: Maíra Canal Signed-off-by: Maxime Ripard --- drivers/gpu/drm/vc4/tests/vc4_mock_plane.c | 34 +++++++----------------------- 1 file changed, 8 insertions(+), 26 deletions(-) diff --git a/drivers/gpu/drm/vc4/tests/vc4_mock_plane.c b/drivers/gpu/drm/vc4/tests/vc4_mock_plane.c index 973f5f929097..14357db82238 100644 --- a/drivers/gpu/drm/vc4/tests/vc4_mock_plane.c +++ b/drivers/gpu/drm/vc4/tests/vc4_mock_plane.c @@ -1,43 +1,25 @@ // SPDX-License-Identifier: GPL-2.0 -#include -#include -#include +#include #include #include #include "vc4_mock.h" -static const struct drm_plane_helper_funcs vc4_dummy_plane_helper_funcs = { -}; - -static const struct drm_plane_funcs vc4_dummy_plane_funcs = { - .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, - .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, - .reset = drm_atomic_helper_plane_reset, -}; - -static const uint32_t vc4_dummy_plane_formats[] = { - DRM_FORMAT_XRGB8888, -}; - struct drm_plane *vc4_dummy_plane(struct kunit *test, struct drm_device *drm, enum drm_plane_type type) { struct drm_plane *plane; - plane = __drmm_universal_plane_alloc(drm, sizeof(struct drm_plane), 0, - 0, - &vc4_dummy_plane_funcs, - vc4_dummy_plane_formats, - ARRAY_SIZE(vc4_dummy_plane_formats), - NULL, - DRM_PLANE_TYPE_PRIMARY, - NULL); - KUNIT_ASSERT_NOT_ERR_OR_NULL(test, plane); + KUNIT_ASSERT_EQ(test, type, DRM_PLANE_TYPE_PRIMARY); - drm_plane_helper_add(plane, &vc4_dummy_plane_helper_funcs); + plane = drm_kunit_helper_create_primary_plane(test, drm, + NULL, + NULL, + NULL, 0, + NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, plane); return plane; } From patchwork Tue May 7 13:17:45 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13657044 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 C51CAC10F1A for ; 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Tue, 07 May 2024 13:19:11 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 0633E6175F; Tue, 7 May 2024 13:19:00 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7DBFDC4AF67; Tue, 7 May 2024 13:18:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1715087939; bh=Mh8ZDhsVheuLAfspcFtEKofuu7c6omICQvztPDf1zMY=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=LtpDn5fOusFl9Gn5SMNcZvRELq2YUU/vvaQZjAoShp8uFLNt8Y6DRWG39m6jjMlvx tGKuqsrAjYcqW0qWFPTcrTGzf9/LhkvbRm/6FdM8YNGn4TcVn86s1E9PHejPDSYv5L A+mQMua20D+8Ym8jCfnTKOVrlysaTGRgCXsASHAr9+v+aEWqbBhSGD83uoRaSevXzA ozSjphICVQU4X9EzPuJAKdQN+KaGMb7T6yqbJTgtinMmTJJYtd7u/D2IiSscXGNYRO TuMv0MKGwqIpdqeKEPlFr0/W/LsoZ0XkU8f0KzSVUHbOFDdhZu1FK2PicXq99OumEC xFAD3bbVg0H/g== From: Maxime Ripard Date: Tue, 07 May 2024 15:17:45 +0200 Subject: [PATCH v13 27/28] drm/rockchip: inno_hdmi: Switch to HDMI connector MIME-Version: 1.0 Message-Id: <20240507-kms-hdmi-connector-state-v13-27-8fafc5efe8be@kernel.org> References: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> In-Reply-To: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Andy Yan Cc: Hans Verkuil , Sebastian Wick , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, Maxime Ripard X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=14344; i=mripard@kernel.org; h=from:subject:message-id; bh=Mh8ZDhsVheuLAfspcFtEKofuu7c6omICQvztPDf1zMY=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDGlWmp+1H85xbAzx9PO0d5hrEWjbwhcYtWo6c/akOa/TM sIfqR3umMrCIMzJICumyPJEJuz08vbFVQ72K3/AzGFlAhnCwMUpABO5ZsVY72f+PWmyKPPNOYVn 1Fy9vNz8rU8/eNN7xnLzzP0ODQ4XDVfVVsnfW/j+nsmkLN4lyVnRjA0XTr5b8/gt09vOz7wMbf4 fdzTv4d9gsPTAQpm670v0o350TGKZIf354OvkJj+Jvnbn18EA X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240507_141909_484138_70861E12 X-CRM114-Status: GOOD ( 21.85 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The new HDMI connector infrastructure allows to remove some boilerplate, especially to generate infoframes. Let's switch to it. Reviewed-by: Heiko Stuebner Acked-by: Heiko Stuebner Signed-off-by: Maxime Ripard --- drivers/gpu/drm/rockchip/Kconfig | 3 + drivers/gpu/drm/rockchip/inno_hdmi.c | 153 ++++++++++++--------------------- drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c | 3 + 3 files changed, 61 insertions(+), 98 deletions(-) diff --git a/drivers/gpu/drm/rockchip/Kconfig b/drivers/gpu/drm/rockchip/Kconfig index 1bf3e2829cd0..7df875e38517 100644 --- a/drivers/gpu/drm/rockchip/Kconfig +++ b/drivers/gpu/drm/rockchip/Kconfig @@ -72,10 +72,13 @@ config ROCKCHIP_DW_MIPI_DSI enable MIPI DSI on RK3288 or RK3399 based SoC, you should select this option. config ROCKCHIP_INNO_HDMI bool "Rockchip specific extensions for Innosilicon HDMI" + select DRM_DISPLAY_HDMI_HELPER + select DRM_DISPLAY_HDMI_STATE_HELPER + select DRM_DISPLAY_HELPER help This selects support for Rockchip SoC specific extensions for the Innosilicon HDMI driver. If you want to enable HDMI on RK3036 based SoC, you should select this option. diff --git a/drivers/gpu/drm/rockchip/inno_hdmi.c b/drivers/gpu/drm/rockchip/inno_hdmi.c index 3df2cfcf9998..5069403c3b80 100644 --- a/drivers/gpu/drm/rockchip/inno_hdmi.c +++ b/drivers/gpu/drm/rockchip/inno_hdmi.c @@ -20,10 +20,13 @@ #include #include #include #include +#include +#include + #include "rockchip_drm_drv.h" #include "inno_hdmi.h" #define INNO_HDMI_MIN_TMDS_CLOCK 25000000U @@ -65,13 +68,11 @@ struct inno_hdmi { const struct inno_hdmi_variant *variant; }; struct inno_hdmi_connector_state { struct drm_connector_state base; - unsigned int enc_out_format; unsigned int colorimetry; - bool rgb_limited_range; }; static struct inno_hdmi *encoder_to_inno_hdmi(struct drm_encoder *encoder) { struct rockchip_encoder *rkencoder = to_rockchip_encoder(encoder); @@ -255,90 +256,53 @@ static void inno_hdmi_reset(struct inno_hdmi *hdmi) hdmi_modb(hdmi, HDMI_SYS_CTRL, msk, val); inno_hdmi_standby(hdmi); } -static void inno_hdmi_disable_frame(struct inno_hdmi *hdmi, - enum hdmi_infoframe_type type) +static int inno_hdmi_disable_frame(struct drm_connector *connector, + enum hdmi_infoframe_type type) { - struct drm_connector *connector = &hdmi->connector; - - if (type != HDMI_INFOFRAME_TYPE_AVI) { - drm_err(connector->dev, - "Unsupported infoframe type: %u\n", type); - return; - } - - hdmi_writeb(hdmi, HDMI_CONTROL_PACKET_BUF_INDEX, INFOFRAME_AVI); -} - -static int inno_hdmi_upload_frame(struct inno_hdmi *hdmi, - union hdmi_infoframe *frame, enum hdmi_infoframe_type type) -{ - struct drm_connector *connector = &hdmi->connector; - u8 packed_frame[HDMI_MAXIMUM_INFO_FRAME_SIZE]; - ssize_t rc, i; + struct inno_hdmi *hdmi = connector_to_inno_hdmi(connector); if (type != HDMI_INFOFRAME_TYPE_AVI) { drm_err(connector->dev, "Unsupported infoframe type: %u\n", type); return 0; } - inno_hdmi_disable_frame(hdmi, type); + hdmi_writeb(hdmi, HDMI_CONTROL_PACKET_BUF_INDEX, INFOFRAME_AVI); - rc = hdmi_infoframe_pack(frame, packed_frame, - sizeof(packed_frame)); - if (rc < 0) - return rc; + return 0; +} - for (i = 0; i < rc; i++) +static int inno_hdmi_upload_frame(struct drm_connector *connector, + enum hdmi_infoframe_type type, + const u8 *buffer, size_t len) +{ + struct inno_hdmi *hdmi = connector_to_inno_hdmi(connector); + u8 packed_frame[HDMI_MAXIMUM_INFO_FRAME_SIZE]; + ssize_t i; + + if (type != HDMI_INFOFRAME_TYPE_AVI) { + drm_err(connector->dev, + "Unsupported infoframe type: %u\n", type); + return 0; + } + + inno_hdmi_disable_frame(connector, type); + + for (i = 0; i < len; i++) hdmi_writeb(hdmi, HDMI_CONTROL_PACKET_ADDR + i, packed_frame[i]); return 0; } -static int inno_hdmi_config_video_avi(struct inno_hdmi *hdmi, - struct drm_display_mode *mode) -{ - struct drm_connector *connector = &hdmi->connector; - struct drm_connector_state *conn_state = connector->state; - struct inno_hdmi_connector_state *inno_conn_state = - to_inno_hdmi_conn_state(conn_state); - union hdmi_infoframe frame; - int rc; - - rc = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi, - &hdmi->connector, - mode); - if (rc) { - inno_hdmi_disable_frame(hdmi, HDMI_INFOFRAME_TYPE_AVI); - return rc; - } - - if (inno_conn_state->enc_out_format == HDMI_COLORSPACE_YUV444) - frame.avi.colorspace = HDMI_COLORSPACE_YUV444; - else if (inno_conn_state->enc_out_format == HDMI_COLORSPACE_YUV422) - frame.avi.colorspace = HDMI_COLORSPACE_YUV422; - else - frame.avi.colorspace = HDMI_COLORSPACE_RGB; - - if (inno_conn_state->enc_out_format == HDMI_COLORSPACE_RGB) { - drm_hdmi_avi_infoframe_quant_range(&frame.avi, - connector, mode, - inno_conn_state->rgb_limited_range ? - HDMI_QUANTIZATION_RANGE_LIMITED : - HDMI_QUANTIZATION_RANGE_FULL); - } else { - frame.avi.quantization_range = HDMI_QUANTIZATION_RANGE_DEFAULT; - frame.avi.ycc_quantization_range = - HDMI_YCC_QUANTIZATION_RANGE_LIMITED; - } - - return inno_hdmi_upload_frame(hdmi, &frame, HDMI_INFOFRAME_TYPE_AVI); -} +static const struct drm_connector_hdmi_funcs inno_hdmi_hdmi_connector_funcs = { + .clear_infoframe = inno_hdmi_disable_frame, + .write_infoframe = inno_hdmi_upload_frame, +}; static int inno_hdmi_config_video_csc(struct inno_hdmi *hdmi) { struct drm_connector *connector = &hdmi->connector; struct drm_connector_state *conn_state = connector->state; @@ -359,12 +323,12 @@ static int inno_hdmi_config_video_csc(struct inno_hdmi *hdmi) value = v_VIDEO_INPUT_BITS(VIDEO_INPUT_8BITS) | v_VIDEO_OUTPUT_COLOR(0) | v_VIDEO_INPUT_CSP(0); hdmi_writeb(hdmi, HDMI_VIDEO_CONTRL2, value); - if (inno_conn_state->enc_out_format == HDMI_COLORSPACE_RGB) { - if (inno_conn_state->rgb_limited_range) { + if (conn_state->hdmi.output_format == HDMI_COLORSPACE_RGB) { + if (conn_state->hdmi.is_limited_range) { csc_mode = CSC_RGB_0_255_TO_RGB_16_235_8BIT; auto_csc = AUTO_CSC_DISABLE; c0_c2_change = C0_C2_CHANGE_DISABLE; csc_enable = v_CSC_ENABLE; @@ -378,18 +342,18 @@ static int inno_hdmi_config_video_csc(struct inno_hdmi *hdmi) v_VIDEO_C0_C2_SWAP(C0_C2_CHANGE_DISABLE)); return 0; } } else { if (inno_conn_state->colorimetry == HDMI_COLORIMETRY_ITU_601) { - if (inno_conn_state->enc_out_format == HDMI_COLORSPACE_YUV444) { + if (conn_state->hdmi.output_format == HDMI_COLORSPACE_YUV444) { csc_mode = CSC_RGB_0_255_TO_ITU601_16_235_8BIT; auto_csc = AUTO_CSC_DISABLE; c0_c2_change = C0_C2_CHANGE_DISABLE; csc_enable = v_CSC_ENABLE; } } else { - if (inno_conn_state->enc_out_format == HDMI_COLORSPACE_YUV444) { + if (conn_state->hdmi.output_format == HDMI_COLORSPACE_YUV444) { csc_mode = CSC_RGB_0_255_TO_ITU709_16_235_8BIT; auto_csc = AUTO_CSC_DISABLE; c0_c2_change = C0_C2_CHANGE_DISABLE; csc_enable = v_CSC_ENABLE; } @@ -460,14 +424,16 @@ static int inno_hdmi_config_video_timing(struct inno_hdmi *hdmi, return 0; } static int inno_hdmi_setup(struct inno_hdmi *hdmi, - struct drm_display_mode *mode) + struct drm_crtc_state *new_crtc_state, + struct drm_connector_state *new_conn_state) { - struct drm_display_info *display = &hdmi->connector.display_info; - unsigned long mpixelclock = mode->clock * 1000; + struct drm_connector *connector = &hdmi->connector; + struct drm_display_info *display = &connector->display_info; + struct drm_display_mode *mode = &new_crtc_state->adjusted_mode; /* Mute video and audio output */ hdmi_modb(hdmi, HDMI_AV_MUTE, m_AUDIO_MUTE | m_VIDEO_BLACK, v_AUDIO_MUTE(1) | v_VIDEO_MUTE(1)); @@ -477,26 +443,26 @@ static int inno_hdmi_setup(struct inno_hdmi *hdmi, inno_hdmi_config_video_timing(hdmi, mode); inno_hdmi_config_video_csc(hdmi); - if (display->is_hdmi) - inno_hdmi_config_video_avi(hdmi, mode); + drm_atomic_helper_connector_hdmi_update_infoframes(connector, + new_conn_state->state); /* * When IP controller have configured to an accurate video * timing, then the TMDS clock source would be switched to * DCLK_LCDC, so we need to init the TMDS rate to mode pixel * clock rate, and reconfigure the DDC clock. */ - inno_hdmi_i2c_init(hdmi, mpixelclock); + inno_hdmi_i2c_init(hdmi, new_conn_state->hdmi.tmds_char_rate); /* Unmute video and audio output */ hdmi_modb(hdmi, HDMI_AV_MUTE, m_AUDIO_MUTE | m_VIDEO_BLACK, v_AUDIO_MUTE(0) | v_VIDEO_MUTE(0)); - inno_hdmi_power_up(hdmi, mpixelclock); + inno_hdmi_power_up(hdmi, new_conn_state->hdmi.tmds_char_rate); return 0; } static enum drm_mode_status inno_hdmi_display_mode_valid(struct inno_hdmi *hdmi, @@ -544,11 +510,11 @@ static void inno_hdmi_encoder_enable(struct drm_encoder *encoder, crtc_state = drm_atomic_get_new_crtc_state(state, conn_state->crtc); if (WARN_ON(!crtc_state)) return; - inno_hdmi_setup(hdmi, &crtc_state->adjusted_mode); + inno_hdmi_setup(hdmi, crtc_state, conn_state); } static void inno_hdmi_encoder_disable(struct drm_encoder *encoder, struct drm_atomic_state *state) { @@ -561,11 +527,10 @@ static int inno_hdmi_encoder_atomic_check(struct drm_encoder *encoder, struct drm_crtc_state *crtc_state, struct drm_connector_state *conn_state) { struct rockchip_crtc_state *s = to_rockchip_crtc_state(crtc_state); - struct inno_hdmi *hdmi = encoder_to_inno_hdmi(encoder); struct drm_display_mode *mode = &crtc_state->adjusted_mode; u8 vic = drm_match_cea_mode(mode); struct inno_hdmi_connector_state *inno_conn_state = to_inno_hdmi_conn_state(conn_state); @@ -578,16 +543,11 @@ inno_hdmi_encoder_atomic_check(struct drm_encoder *encoder, vic == 17 || vic == 18) inno_conn_state->colorimetry = HDMI_COLORIMETRY_ITU_601; else inno_conn_state->colorimetry = HDMI_COLORIMETRY_ITU_709; - inno_conn_state->enc_out_format = HDMI_COLORSPACE_RGB; - inno_conn_state->rgb_limited_range = - drm_default_rgb_quant_range(mode) == HDMI_QUANTIZATION_RANGE_LIMITED; - - return inno_hdmi_display_mode_valid(hdmi, - &crtc_state->adjusted_mode) == MODE_OK ? 0 : -EINVAL; + return 0; } static struct drm_encoder_helper_funcs inno_hdmi_encoder_helper_funcs = { .atomic_check = inno_hdmi_encoder_atomic_check, .atomic_enable = inno_hdmi_encoder_enable, @@ -627,16 +587,10 @@ inno_hdmi_connector_mode_valid(struct drm_connector *connector, struct inno_hdmi *hdmi = connector_to_inno_hdmi(connector); return inno_hdmi_display_mode_valid(hdmi, mode); } -static void inno_hdmi_connector_destroy(struct drm_connector *connector) -{ - drm_connector_unregister(connector); - drm_connector_cleanup(connector); -} - static void inno_hdmi_connector_destroy_state(struct drm_connector *connector, struct drm_connector_state *state) { struct inno_hdmi_connector_state *inno_conn_state = @@ -658,14 +612,13 @@ static void inno_hdmi_connector_reset(struct drm_connector *connector) inno_conn_state = kzalloc(sizeof(*inno_conn_state), GFP_KERNEL); if (!inno_conn_state) return; __drm_atomic_helper_connector_reset(connector, &inno_conn_state->base); + __drm_atomic_helper_connector_hdmi_reset(connector, connector->state); inno_conn_state->colorimetry = HDMI_COLORIMETRY_ITU_709; - inno_conn_state->enc_out_format = HDMI_COLORSPACE_RGB; - inno_conn_state->rgb_limited_range = false; } static struct drm_connector_state * inno_hdmi_connector_duplicate_state(struct drm_connector *connector) { @@ -687,17 +640,17 @@ inno_hdmi_connector_duplicate_state(struct drm_connector *connector) } static const struct drm_connector_funcs inno_hdmi_connector_funcs = { .fill_modes = drm_helper_probe_single_connector_modes, .detect = inno_hdmi_connector_detect, - .destroy = inno_hdmi_connector_destroy, .reset = inno_hdmi_connector_reset, .atomic_duplicate_state = inno_hdmi_connector_duplicate_state, .atomic_destroy_state = inno_hdmi_connector_destroy_state, }; static struct drm_connector_helper_funcs inno_hdmi_connector_helper_funcs = { + .atomic_check = drm_atomic_helper_connector_hdmi_check, .get_modes = inno_hdmi_connector_get_modes, .mode_valid = inno_hdmi_connector_mode_valid, }; static int inno_hdmi_register(struct drm_device *drm, struct inno_hdmi *hdmi) @@ -721,14 +674,18 @@ static int inno_hdmi_register(struct drm_device *drm, struct inno_hdmi *hdmi) hdmi->connector.polled = DRM_CONNECTOR_POLL_HPD; drm_connector_helper_add(&hdmi->connector, &inno_hdmi_connector_helper_funcs); - drm_connector_init_with_ddc(drm, &hdmi->connector, - &inno_hdmi_connector_funcs, - DRM_MODE_CONNECTOR_HDMIA, - hdmi->ddc); + drmm_connector_hdmi_init(drm, &hdmi->connector, + "Rockchip", "Inno HDMI", + &inno_hdmi_connector_funcs, + &inno_hdmi_hdmi_connector_funcs, + DRM_MODE_CONNECTOR_HDMIA, + hdmi->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); drm_connector_attach_encoder(&hdmi->connector, encoder); return 0; } diff --git a/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c b/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c index 245b34adca5a..1c6cda2bfb14 100644 --- a/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c +++ b/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c @@ -24,10 +24,13 @@ #include #include #include #include +#include +#include + #include "sun4i_backend.h" #include "sun4i_crtc.h" #include "sun4i_drv.h" #include "sun4i_hdmi.h" From patchwork Tue May 7 13:17:46 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13657063 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 C8773C25B75 for ; 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a=openpgp-sha256; l=7714; i=mripard@kernel.org; h=from:subject:message-id; bh=zPGAazY1u9qYna183Z1tT1mvzEzSQ6HXQjNF0q4fp6A=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDGlWmp+9rR4lPXyTIVq1fafy1ktKjgWei/eEGL5/cSBc/ OKz79qCHVNZGIQ5GWTFFFmeyISdXt6+uMrBfuUPmDmsTCBDGLg4BWAiFmcYGxpueSr5OO/muZKw LOye0eHUAA55AUGeMy8frmGYs3JqdRh7SsbS204VtTyWersjuhTVGRs2Fom2nJ+TKVd0jO1gwwu PeM2Ih6FSbOI5px/ufes5uXuCVKbXXiW/F+p3jL6lPez6PwEA X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240507_061904_254922_E93159D2 X-CRM114-Status: GOOD ( 19.72 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The new HDMI connector infrastructure allows to remove some boilerplate, especially to generate infoframes. Let's switch to it. Reviewed-by: Jernej Skrabec Acked-by: Sui Jingfeng Signed-off-by: Maxime Ripard --- drivers/gpu/drm/sun4i/Kconfig | 3 ++ drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c | 81 +++++++++++++++++++++------------- 2 files changed, 54 insertions(+), 30 deletions(-) diff --git a/drivers/gpu/drm/sun4i/Kconfig b/drivers/gpu/drm/sun4i/Kconfig index 4741d9f6544c..4037e085430e 100644 --- a/drivers/gpu/drm/sun4i/Kconfig +++ b/drivers/gpu/drm/sun4i/Kconfig @@ -16,10 +16,13 @@ config DRM_SUN4I if DRM_SUN4I config DRM_SUN4I_HDMI tristate "Allwinner A10/A10s/A20/A31 HDMI Controller Support" depends on ARM || COMPILE_TEST + select DRM_DISPLAY_HDMI_HELPER + select DRM_DISPLAY_HDMI_STATE_HELPER + select DRM_DISPLAY_HELPER default DRM_SUN4I help Choose this option if you have an Allwinner A10/A10s/A20/A31 SoC with an HDMI controller. diff --git a/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c b/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c index 1c6cda2bfb14..0e652dd480c9 100644 --- a/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c +++ b/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c @@ -38,34 +38,28 @@ container_of_const(e, struct sun4i_hdmi, encoder) #define drm_connector_to_sun4i_hdmi(c) \ container_of_const(c, struct sun4i_hdmi, connector) -static int sun4i_hdmi_setup_avi_infoframes(struct sun4i_hdmi *hdmi, - struct drm_display_mode *mode) +static int sun4i_hdmi_write_infoframe(struct drm_connector *connector, + enum hdmi_infoframe_type type, + const u8 *buffer, size_t len) { - struct hdmi_avi_infoframe frame; - u8 buffer[17]; - int i, ret; + struct sun4i_hdmi *hdmi = drm_connector_to_sun4i_hdmi(connector); + int i; - ret = drm_hdmi_avi_infoframe_from_display_mode(&frame, - &hdmi->connector, mode); - if (ret < 0) { - DRM_ERROR("Failed to get infoframes from mode\n"); - return ret; + if (type != HDMI_INFOFRAME_TYPE_AVI) { + drm_err(connector->dev, + "Unsupported infoframe type: %u\n", type); + return 0; } - ret = hdmi_avi_infoframe_pack(&frame, buffer, sizeof(buffer)); - if (ret < 0) { - DRM_ERROR("Failed to pack infoframes\n"); - return ret; - } - - for (i = 0; i < sizeof(buffer); i++) + for (i = 0; i < len; i++) writeb(buffer[i], hdmi->base + SUN4I_HDMI_AVI_INFOFRAME_REG(i)); return 0; + } static void sun4i_hdmi_disable(struct drm_encoder *encoder, struct drm_atomic_state *state) { @@ -84,18 +78,22 @@ static void sun4i_hdmi_disable(struct drm_encoder *encoder, static void sun4i_hdmi_enable(struct drm_encoder *encoder, struct drm_atomic_state *state) { struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode; struct sun4i_hdmi *hdmi = drm_encoder_to_sun4i_hdmi(encoder); - struct drm_display_info *display = &hdmi->connector.display_info; + struct drm_connector *connector = &hdmi->connector; + struct drm_display_info *display = &connector->display_info; + struct drm_connector_state *conn_state = + drm_atomic_get_new_connector_state(state, connector); + unsigned long long tmds_rate = conn_state->hdmi.tmds_char_rate; unsigned int x, y; u32 val = 0; DRM_DEBUG_DRIVER("Enabling the HDMI Output\n"); - clk_set_rate(hdmi->mod_clk, mode->crtc_clock * 1000); - clk_set_rate(hdmi->tmds_clk, mode->crtc_clock * 1000); + clk_set_rate(hdmi->mod_clk, tmds_rate); + clk_set_rate(hdmi->tmds_clk, tmds_rate); /* Set input sync enable */ writel(SUN4I_HDMI_UNKNOWN_INPUT_SYNC, hdmi->base + SUN4I_HDMI_UNKNOWN_REG); @@ -144,11 +142,12 @@ static void sun4i_hdmi_enable(struct drm_encoder *encoder, writel(val, hdmi->base + SUN4I_HDMI_VID_TIMING_POL_REG); clk_prepare_enable(hdmi->tmds_clk); - sun4i_hdmi_setup_avi_infoframes(hdmi, mode); + drm_atomic_helper_connector_hdmi_update_infoframes(connector, state); + val |= SUN4I_HDMI_PKT_CTRL_TYPE(0, SUN4I_HDMI_PKT_AVI); val |= SUN4I_HDMI_PKT_CTRL_TYPE(1, SUN4I_HDMI_PKT_END); writel(val, hdmi->base + SUN4I_HDMI_PKT_CTRL_REG(0)); val = SUN4I_HDMI_VID_CTRL_ENABLE; @@ -197,23 +196,26 @@ static int sun4i_hdmi_connector_atomic_check(struct drm_connector *connector, struct drm_crtc_state *crtc_state = crtc->state; struct drm_display_mode *mode = &crtc_state->adjusted_mode; enum drm_mode_status status; status = sun4i_hdmi_connector_clock_valid(connector, mode, - mode->clock * 1000); + conn_state->hdmi.tmds_char_rate); if (status != MODE_OK) return -EINVAL; return 0; } static enum drm_mode_status sun4i_hdmi_connector_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode) { - return sun4i_hdmi_connector_clock_valid(connector, mode, - mode->clock * 1000); + unsigned long long rate = + drm_connector_hdmi_compute_mode_clock(mode, 8, + HDMI_COLORSPACE_RGB); + + return sun4i_hdmi_connector_clock_valid(connector, mode, rate); } static int sun4i_hdmi_get_modes(struct drm_connector *connector) { struct sun4i_hdmi *hdmi = drm_connector_to_sun4i_hdmi(connector); @@ -259,10 +261,15 @@ static struct i2c_adapter *sun4i_hdmi_get_ddc(struct device *dev) return ERR_PTR(-EPROBE_DEFER); return ddc; } +static const struct drm_connector_hdmi_funcs sun4i_hdmi_hdmi_connector_funcs = { + .tmds_char_rate_valid = sun4i_hdmi_connector_clock_valid, + .write_infoframe = sun4i_hdmi_write_infoframe, +}; + static const struct drm_connector_helper_funcs sun4i_hdmi_connector_helper_funcs = { .atomic_check = sun4i_hdmi_connector_atomic_check, .mode_valid = sun4i_hdmi_connector_mode_valid, .get_modes = sun4i_hdmi_get_modes, }; @@ -280,15 +287,20 @@ sun4i_hdmi_connector_detect(struct drm_connector *connector, bool force) } return connector_status_connected; } +static void sun4i_hdmi_connector_reset(struct drm_connector *connector) +{ + drm_atomic_helper_connector_reset(connector); + __drm_atomic_helper_connector_hdmi_reset(connector, connector->state); +} + static const struct drm_connector_funcs sun4i_hdmi_connector_funcs = { .detect = sun4i_hdmi_connector_detect, .fill_modes = drm_helper_probe_single_connector_modes, - .destroy = drm_connector_cleanup, - .reset = drm_atomic_helper_connector_reset, + .reset = sun4i_hdmi_connector_reset, .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, }; #ifdef CONFIG_DRM_SUN4I_HDMI_CEC @@ -643,14 +655,23 @@ static int sun4i_hdmi_bind(struct device *dev, struct device *master, hdmi->base + SUN4I_HDMI_CEC); #endif drm_connector_helper_add(&hdmi->connector, &sun4i_hdmi_connector_helper_funcs); - ret = drm_connector_init_with_ddc(drm, &hdmi->connector, - &sun4i_hdmi_connector_funcs, - DRM_MODE_CONNECTOR_HDMIA, - hdmi->ddc_i2c); + ret = drmm_connector_hdmi_init(drm, &hdmi->connector, + /* + * NOTE: Those are likely to be + * wrong, but I couldn't find the + * actual ones in the BSP. + */ + "AW", "HDMI", + &sun4i_hdmi_connector_funcs, + &sun4i_hdmi_hdmi_connector_funcs, + DRM_MODE_CONNECTOR_HDMIA, + hdmi->ddc_i2c, + BIT(HDMI_COLORSPACE_RGB), + 8); if (ret) { dev_err(dev, "Couldn't initialise the HDMI connector\n"); goto err_cleanup_connector; }