From patchwork Thu Dec 7 15:49:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13483578 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 17EFFC10DC3 for ; Thu, 7 Dec 2023 15:50:55 +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=W13DWOiceOrY0Xb2n/VqebbZkyAL8qNr+DgqXynAgRI=; b=EKU016m3i7PEuW oH4q4sKo8KIHI9fAf+fAWt6ViFLZ6OkZR3HpdOGMzBQL9V0QdIyeMUsU+FbGeEfiy78ZPPrNoipvk pYTaO1pEMvxmo1PS1L1H9gJvYrP6K+K/+Cp3ZGWYImaG1v+S/QD8QNg72+Rec+HOkexCzIEyWPRgA 7rAOpe80ZbcpuLOSi+jzd5Ds4h2rZKY2rK11Q9cTL1TiqdU1fQZjqSlgZHWDoquqSuLILI8hbeqIf 7HafUVTe5cYebbVqOj59JZ5nFO3rwecggt51o51RaP9yY18BgDLsKUEWk+qXwzccZnFrEjK5Z3OYH uoNXMgJ5ICIFgYnt1GUw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rBGdo-00DGmt-0B; Thu, 07 Dec 2023 15:50:20 +0000 Received: from sin.source.kernel.org ([145.40.73.55]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rBGdX-00DGQe-1a; Thu, 07 Dec 2023 15:50:16 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sin.source.kernel.org (Postfix) with ESMTP id AF198CE1FC8; Thu, 7 Dec 2023 15:50:00 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id F30A3C433CB; Thu, 7 Dec 2023 15:49:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1701964200; bh=vkQnawnybgcxQe4r/BKfuMDeYrLPWtC+ZLmpRglzOHc=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=sEYclr+csIPkdW4AhjbSXv9IqDnaoHiWaWUgSuZTBrjZ+Prrt6TD0z7u0UunqYxcT n7TNTRc7alChziRJOPqtb2hhcQXg3udX+laDgAnmxrwCKAB/2wMCy969Y98YDO8xao zQLrEFj6ReAnFkHCPk1W1at8suTqL6WCIFm2vVMoinWmDg/KUl0wSnzsYerO4UXyk8 pyNlXy2gXynqSbvJjmxBrS8w9p7Qj5b2y3YT7yuIE5PgWBy1Iz4xSV1hobF5stqThg ijjpsPP4YVMa7VpZ5RAXwcZ9M3ua8DII64QR7sCO6Xp5xJFZYWbqFB4qgZQdniDeIX IYp2bxcvGfHoA== From: Maxime Ripard Date: Thu, 07 Dec 2023 16:49:33 +0100 Subject: [PATCH v5 10/44] drm/connector: hdmi: Add output BPC to the connector state MIME-Version: 1.0 Message-Id: <20231207-kms-hdmi-connector-state-v5-10-6538e19d634d@kernel.org> References: <20231207-kms-hdmi-connector-state-v5-0-6538e19d634d@kernel.org> In-Reply-To: <20231207-kms-hdmi-connector-state-v5-0-6538e19d634d@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Emma Anholt , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland Cc: Hans Verkuil , 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 0.12.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=24518; i=mripard@kernel.org; h=from:subject:message-id; bh=vkQnawnybgcxQe4r/BKfuMDeYrLPWtC+ZLmpRglzOHc=; b=owGbwMvMwCX2+D1vfrpE4FHG02pJDKmFL1ufPBPxuatidMuCZYN2R6lLoNrbmSJzLxWcPJ6+1 NPAS/lbRykLgxgXg6yYIkuMsPmSuFOzXney8c2DmcPKBDKEgYtTACZS18HI8Ej39Iu8f++Kb585 FCS14eQEzQC9E9ULxIwOian7WGgITmL4w6W94/dt87ijQue18vKnG/efeFxolXsi9pH2xYmJdTn TuQE= 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-20231207_075004_013360_A4FAFBCD X-CRM114-Status: GOOD ( 19.84 ) 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. Signed-off-by: Maxime Ripard Reviewed-by: Dave Stevenson --- drivers/gpu/drm/drm_atomic.c | 1 + drivers/gpu/drm/drm_atomic_state_helper.c | 7 +- drivers/gpu/drm/drm_connector.c | 20 +- .../gpu/drm/tests/drm_atomic_state_helper_test.c | 227 ++++++++++++++++++++- drivers/gpu/drm/tests/drm_connector_test.c | 153 +++++++++++++- include/drm/drm_connector.h | 13 +- 6 files changed, 402 insertions(+), 19 deletions(-) diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index e4ad53e64e07..76c63ed04af4 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -1147,6 +1147,7 @@ static void drm_atomic_connector_print_state(struct drm_printer *p, drm_printf(p, "\tbroadcast_rgb=%s\n", drm_hdmi_connector_get_broadcast_rgb_name(state->hdmi.broadcast_rgb)); drm_printf(p, "\tis_full_range=%c\n", state->hdmi.is_full_range ? 'y' : 'n'); + drm_printf(p, "\toutput_bpc=%u\n", state->hdmi.output_bpc); } if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK) diff --git a/drivers/gpu/drm/drm_atomic_state_helper.c b/drivers/gpu/drm/drm_atomic_state_helper.c index 4a7114978c47..883bdc0349c0 100644 --- a/drivers/gpu/drm/drm_atomic_state_helper.c +++ b/drivers/gpu/drm/drm_atomic_state_helper.c @@ -584,6 +584,10 @@ EXPORT_SYMBOL(drm_atomic_helper_connector_tv_reset); void __drm_atomic_helper_connector_hdmi_reset(struct drm_connector *connector, struct drm_connector_state *new_state) { + unsigned int max_bpc = connector->max_bpc; + + new_state->max_bpc = max_bpc; + new_state->max_requested_bpc = max_bpc; new_state->hdmi.broadcast_rgb = DRM_HDMI_BROADCAST_RGB_AUTO; } EXPORT_SYMBOL(__drm_atomic_helper_connector_hdmi_reset); @@ -700,7 +704,8 @@ int drm_atomic_helper_connector_hdmi_check(struct drm_connector *connector, new_state->hdmi.is_full_range = hdmi_is_full_range(connector, new_state); - if (old_state->hdmi.broadcast_rgb != new_state->hdmi.broadcast_rgb) { + if (old_state->hdmi.broadcast_rgb != new_state->hdmi.broadcast_rgb || + old_state->hdmi.output_bpc != new_state->hdmi.output_bpc) { struct drm_crtc *crtc = new_state->crtc; struct drm_crtc_state *crtc_state; diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index 929b0a911f62..139ac3d8160c 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -459,6 +459,7 @@ EXPORT_SYMBOL(drmm_connector_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. @@ -475,7 +476,8 @@ 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; @@ -483,10 +485,26 @@ int drmm_connector_hdmi_init(struct drm_device *dev, 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_atomic_state_helper_test.c b/drivers/gpu/drm/tests/drm_atomic_state_helper_test.c index 7750c3d214a4..a1b0e6914cf8 100644 --- a/drivers/gpu/drm/tests/drm_atomic_state_helper_test.c +++ b/drivers/gpu/drm/tests/drm_atomic_state_helper_test.c @@ -146,7 +146,8 @@ 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) +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; @@ -188,7 +189,8 @@ drm_atomic_helper_connector_hdmi_init(struct kunit *test) ret = drmm_connector_hdmi_init(drm, conn, &dummy_connector_funcs, DRM_MODE_CONNECTOR_HDMIA, - NULL); + NULL, + max_bpc); KUNIT_ASSERT_EQ(test, ret, 0); drm_connector_helper_add(conn, &dummy_connector_helper_funcs); @@ -223,7 +225,7 @@ static void drm_test_check_broadcast_rgb_crtc_mode_changed(struct kunit *test) struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test); + priv = drm_atomic_helper_connector_hdmi_init(test, 8); KUNIT_ASSERT_NOT_NULL(test, priv); ctx = drm_kunit_helper_acquire_ctx_alloc(test); @@ -284,7 +286,7 @@ static void drm_test_check_broadcast_rgb_crtc_mode_not_changed(struct kunit *tes struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test); + priv = drm_atomic_helper_connector_hdmi_init(test, 8); KUNIT_ASSERT_NOT_NULL(test, priv); ctx = drm_kunit_helper_acquire_ctx_alloc(test); @@ -345,7 +347,7 @@ static void drm_test_check_broadcast_rgb_auto_cea_mode(struct kunit *test) struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test); + priv = drm_atomic_helper_connector_hdmi_init(test, 8); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; @@ -399,7 +401,7 @@ static void drm_test_check_broadcast_rgb_auto_cea_mode_vic_1(struct kunit *test) struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test); + priv = drm_atomic_helper_connector_hdmi_init(test, 8); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; @@ -452,7 +454,7 @@ static void drm_test_check_broadcast_rgb_full_cea_mode(struct kunit *test) struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test); + priv = drm_atomic_helper_connector_hdmi_init(test, 8); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; @@ -508,7 +510,7 @@ static void drm_test_check_broadcast_rgb_full_cea_mode_vic_1(struct kunit *test) struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test); + priv = drm_atomic_helper_connector_hdmi_init(test, 8); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; @@ -563,7 +565,7 @@ static void drm_test_check_broadcast_rgb_limited_cea_mode(struct kunit *test) struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test); + priv = drm_atomic_helper_connector_hdmi_init(test, 8); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; @@ -619,7 +621,7 @@ static void drm_test_check_broadcast_rgb_limited_cea_mode_vic_1(struct kunit *te struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test); + priv = drm_atomic_helper_connector_hdmi_init(test, 8); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; @@ -657,6 +659,138 @@ static void drm_test_check_broadcast_rgb_limited_cea_mode_vic_1(struct kunit *te KUNIT_EXPECT_FALSE(test, conn_state->hdmi.is_full_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. + */ +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_broadcast_rgb_auto_cea_mode), KUNIT_CASE(drm_test_check_broadcast_rgb_auto_cea_mode_vic_1), @@ -666,6 +800,8 @@ static struct kunit_case drm_atomic_helper_connector_hdmi_check_tests[] = { KUNIT_CASE(drm_test_check_broadcast_rgb_limited_cea_mode_vic_1), 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_output_bpc_crtc_mode_changed), + KUNIT_CASE(drm_test_check_output_bpc_crtc_mode_not_changed), { } }; @@ -684,7 +820,7 @@ static void drm_test_check_broadcast_rgb_value(struct kunit *test) struct drm_connector_state *conn_state; struct drm_connector *conn; - priv = drm_atomic_helper_connector_hdmi_init(test); + priv = drm_atomic_helper_connector_hdmi_init(test, 8); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; @@ -692,8 +828,77 @@ static void drm_test_check_broadcast_rgb_value(struct kunit *test) 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. + */ +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_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), { } }; diff --git a/drivers/gpu/drm/tests/drm_connector_test.c b/drivers/gpu/drm/tests/drm_connector_test.c index 41d33dea30af..fef7d53d34d4 100644 --- a/drivers/gpu/drm/tests/drm_connector_test.c +++ b/drivers/gpu/drm/tests/drm_connector_test.c @@ -186,7 +186,8 @@ 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); + &priv->ddc, + 8); KUNIT_EXPECT_EQ(test, ret, 0); } @@ -202,10 +203,144 @@ 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); + 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. @@ -219,7 +354,8 @@ 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); + &priv->ddc, + 8); KUNIT_EXPECT_EQ(test, ret, 0); } @@ -250,7 +386,8 @@ 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); + &priv->ddc, + 8); KUNIT_EXPECT_LT(test, ret, 0); } @@ -282,6 +419,11 @@ KUNIT_ARRAY_PARAM(drm_connector_hdmi_init_type_invalid, 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), @@ -447,7 +589,8 @@ static void drm_test_drm_connector_attach_broadcast_rgb_property_hdmi_connector( ret = drmm_connector_hdmi_init(&priv->drm, connector, &dummy_funcs, DRM_MODE_CONNECTOR_HDMIA, - &priv->ddc); + &priv->ddc, + 8); KUNIT_EXPECT_EQ(test, ret, 0); ret = drm_connector_attach_broadcast_rgb_property(connector); diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index 76eecd449fb8..1b1b6aed04ee 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -1072,6 +1072,11 @@ struct drm_connector_state { * RGB Quantization Range or not? */ bool is_full_range; + + /** + * @output_bpc: Bits per color channel to output. + */ + unsigned int output_bpc; } hdmi; }; @@ -1717,6 +1722,11 @@ struct drm_connector { */ 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. @@ -1956,7 +1966,8 @@ 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);