From patchwork Tue Apr 23 10:45:29 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13639757 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A70FEC4345F for ; Tue, 23 Apr 2024 10:45:49 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id CD31010FBBC; Tue, 23 Apr 2024 10:45:48 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="SYrMYQyH"; dkim-atps=neutral Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by gabe.freedesktop.org (Postfix) with ESMTPS id C197A10FBB6 for ; Tue, 23 Apr 2024 10:45:47 +0000 (UTC) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id D5E96612ED; Tue, 23 Apr 2024 10:45:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 08FA1C116B1; Tue, 23 Apr 2024 10:45:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1713869146; bh=GNJt1x707bQQyMarMBdIDQU/LMffOY0NsouaChV/ZWc=; h=From:Subject:Date:To:Cc:From; b=SYrMYQyHyryNLyJB9SDNUFIpzJLDspEPpcmd7yw7isJbB1k1uwJ3iZSkEn15wXcRv /yEuQ6k5tGnK2jDf0fLB2voizdtS46iqABdbNFkM9PX0Go47qP6g9Y9/CRjP9x8EEh saYt7V1CtfUFiktym0SA++8NZR3vuMn9nkMaVX4jHjfAKFFRWJ0kzLSYP7B/5RkSHE SFHL+0LJJrXQvUUzZjSHqTdrh23X7Vg4p1ovLfTUF/HaX6T7QUS/059TMXgo5FnEFl PchMEevZjp/DrwdFLDDhoOiQMd1QKCEmdE9+5CSFDj3vhlv7x4dlNcl/F1QFBEPYUn lNQ9Ay4hJpwDg== From: Maxime Ripard Subject: [PATCH v12 00/28] drm/connector: Create HDMI Connector infrastructure Date: Tue, 23 Apr 2024 12:45:29 +0200 Message-Id: <20240423-kms-hdmi-connector-state-v12-0-3338e4c0b189@kernel.org> MIME-Version: 1.0 X-B4-Tracking: v=1; b=H4sIAEmRJ2YC/43SzWrDMAwA4FcpOc/DkmxZ3mnvMXZI/dOGrgkkJ TBK333uYEuHwewkLOHPEta1W9I8pKV72V27Oa3DMkxjOQA+7bpw7MdDUkMsiQ41khYw6nRe1DG eBxWmcUzhMs1qufSXpBjYiUvsPLquXD8OSyl+ftMrlPD2D2QFpZU2oq2Jmdia11Oax/TxPM2H7 r2oK26SR92QsEjgPGHsY4wuVhL9SqAJGhIViVD2OvfJUO8qyWwSoDQkU6TgWCNYIc2pkuwmoXY NyRaJLUkCH5lMPR3/SKa8hg2Ji5TNPsTgnU+cK8k9SNiSXJEkmz5bZ3NIWEmySdScToqUMvecC TybfSX5Bwlaf+eLFI0VrwmJTL1PoB8obFGg711xACfEIF5qCx4tbln3PQ+WReccMjL8sW632xd MchV2mgMAAA== 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 , Pekka Paalanen , =?utf-8?q?Ma=C3=ADra_Canal?= X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=11506; i=mripard@kernel.org; h=from:subject:message-id; bh=GNJt1x707bQQyMarMBdIDQU/LMffOY0NsouaChV/ZWc=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDGnqE72eX9CbasZo+tC/jemc0NVoq4bzT5+ZLNNa07Uh+ Oh/meLMjqksDMKcDLJiiixPZMJOL29fXOVgv/IHzBxWJpAhDFycAjCROFbGhn96977EJVxNuB/A 6R266MvH80dOfTir5mbAL9qzukBSrt39YFvmuw3e8d/npq5r5V7IwFgrG7xhw4bLMU7dqz92hYm JHpy43SaRIe2A7ba5R+x+iRW6vtXbx2Xx7pnZ1hnPJ3Vn/zEEAA== X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Hi, Here's a series that creates some extra infrastructure specifically targeted at HDMI controllers. The idea behind this series came from a recent discussion on IRC during which we discussed infoframes generation of i915 vs everything else. Infoframes generation code still requires some decent boilerplate, with each driver doing some variation of it. In parallel, while working on vc4, we ended up converting a lot of i915 logic (mostly around format / bpc selection, and scrambler setup) to apply on top of a driver that relies only on helpers. While currently sitting in the vc4 driver, none of that logic actually relies on any driver or hardware-specific behaviour. The only missing piece to make it shareable are a bunch of extra variables stored in a state (current bpc, format, RGB range selection, etc.). The initial implementation was relying on some generic subclass of drm_connector to address HDMI connectors, with a bunch of helpers that will take care of all the "HDMI Spec" related code. Scrambler setup is missing at the moment but can easily be plugged in. The feedback was that creating a connector subclass like was done for writeback would prevent the adoption of those helpers since it couldn't be used in all situations (like when the connector driver can implement multiple output) and required more churn to cast between the drm_connector and its subclass. The decision was thus to provide a set of helper and to store the required variables in drm_connector and drm_connector_state. This what has been implemented now. Hans Verkuil also expressed interest in implementing a mechanism in v4l2 to retrieve infoframes from HDMI receiver and implementing a tool to decode (and eventually check) infoframes. His current work on edid-decode to enable that based on that series can be found here: https://git.linuxtv.org/hverkuil/edid-decode.git/log/?h=hverkuil And some more context here: https://lore.kernel.org/dri-devel/50db7366-cd3d-4675-aaad-b857202234de@xs4all.nl/ This series thus leverages the infoframe generation code to expose it through debugfs. I also used the occasion to unit-test everything but the infoframe generation, which can come later once I get a proper understanding of what the infoframe are supposed to look like. This required to add some extra kunit helpers and infrastructure to have multiple EDIDs and allow each test to run with a particular set of capabilities. This entire series has been tested on a Pi4, passes all its unittests (125 new tests), and has only been build-tested for sunxi and rockchip. Let me know what you think, Maxime To: Maarten Lankhorst To: Thomas Zimmermann To: David Airlie To: Daniel Vetter To: Jonathan Corbet To: Sandy Huang To: Heiko Stübner To: Chen-Yu Tsai To: Jernej Skrabec To: Samuel Holland To: Andy Yan Cc: Hans Verkuil Cc: Sebastian Wick Cc: Ville Syrjälä Cc: dri-devel@lists.freedesktop.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-doc@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-media@vger.kernel.org Cc: linux-rockchip@lists.infradead.org Cc: linux-sunxi@lists.linux.dev Signed-off-by: Maxime Ripard Changes in v12: - Rebase on current drm-misc-next - Remove VIC check in clock rate computation function - Invert RGB range logic to signal limited range instead of full like before - Link to v11: https://lore.kernel.org/r/20240326-kms-hdmi-connector-state-v11-0-c5680ffcf261@kernel.org Changes in v11: - Turn the HDMI state helpers into a separate C file under drivers/gpu/drm/display - Rework the Kconfig options too to prevent configuration breakages. - Link to v10: https://lore.kernel.org/r/20240321-kms-hdmi-connector-state-v10-0-e6c178361898@kernel.org Changes in v10: - Drop the YUV422 fallback, and adjust the tests accordingly - Fix HDMI infoframe handling - Remove the infoframe copy in drm_connector - Add a TODO that drm_hdmi_avi_infoframe_quant_range() only works for RGB - Add a TODO for the YUV420 selection - Fix a few bugs in vc4 - Change the logging from driver to KMS for the helpers - Drop UPDATE_INFOFRAME macro - Add infoframe code logging - Document the selection of 8bpc for VIC1 - Rename state to conn_state where relevant - Link to v9: https://lore.kernel.org/r/20240311-kms-hdmi-connector-state-v9-0-d45890323344@kernel.org Changes in v9: - Generate every infoframe but the HDMI vendor one if has_hdmi_infoframe isn't set - Fix typos in the doc - Removed undef for inexisting macro - Improve the Broadcast RGB sanitation test - Make EDID bytes array const - Link to v8: https://lore.kernel.org/r/20240307-kms-hdmi-connector-state-v8-0-ef6a6f31964b@kernel.org Changes in v8: - Drop applied patches - Drop the YUV limited range mention in the Broadcast RGB documentation - Rephrase the vc4_dummy_plane removal commit log - Move infroframe mutex initialisation to the main drm_connector_init function to make sure it's always initialised - Link to v7: https://lore.kernel.org/r/20240222-kms-hdmi-connector-state-v7-0-8f4af575fce2@kernel.org Changes in v7: - Rebased on top of current next - Only consider the Broadcast RGB property if the output format is RGB, and use a limited range otherwise - Document the fact that Broadcast RGB only applies if the output format is RGB - Add some test to make sure we always get a limited range if we have a YCbCr output format. - Link to v6: https://lore.kernel.org/r/20240212-kms-hdmi-connector-state-v6-0-f4bcdc979e6f@kernel.org Changes in v6: - Rebased on top of current next - Split the tests into separate patches - Improve the Broadcast RGB documentation - Link to v5: https://lore.kernel.org/r/20231207-kms-hdmi-connector-state-v5-0-6538e19d634d@kernel.org Changes in v5: - Dropped the connector init arg checking patch, and the related kunit tests - Dropped HDMI Vendor infoframes in rockchip inno_hdmi - Fixed the build warnings - Link to v4: https://lore.kernel.org/r/20231128-kms-hdmi-connector-state-v4-0-c7602158306e@kernel.org Changes in v4: - Create unit tests for everything but infoframes - Fix a number of bugs identified by the unit tests - Rename DRM (Dynamic Range and Mastering) infoframe file to HDR_DRM - Drop RFC status - Link to v3: https://lore.kernel.org/r/20231031-kms-hdmi-connector-state-v3-0-328b0fae43a7@kernel.org Changes in v3: - Made sure the series work on the RaspberryPi4 - Handle YUV420 in the char clock rate computation - Use the maximum bpc value the connector allows at reset - Expose the RGB Limited vs Full Range value in the connector state instead of through a helper - Fix Broadcast RGB documentation - Add more debug logging - Small fixes here and there - Link to v2: https://lore.kernel.org/r/20230920-kms-hdmi-connector-state-v2-0-17932daddd7d@kernel.org Changes in v2: - Change from a subclass to a set of helpers for drm_connector and drm_connector state - Don't assume that all drivers support RGB, YUV420 and YUV422 but make them provide a bitfield instead. - Don't assume that all drivers support the Broadcast RGB property but make them call the registration helper. - Document the Broacast RGB property - Convert the inno_hdmi and sun4i_hdmi driver. - Link to v1: https://lore.kernel.org/r/20230814-kms-hdmi-connector-state-v1-0-048054df3654@kernel.org --- Maxime Ripard (28): drm/connector: Introduce an HDMI connector initialization function drm/mode_object: Export drm_mode_obj_find_prop_id for tests drm/tests: connector: Add tests for drmm_connector_hdmi_init drm/connector: hdmi: Create an HDMI sub-state drm/connector: hdmi: Add output BPC to the connector state drm/tests: Add output bpc tests drm/connector: hdmi: Add support for output format drm/tests: Add output formats tests drm/display: hdmi: Add HDMI compute clock helper drm/tests: Add HDMI TDMS character rate tests drm/connector: hdmi: Calculate TMDS character rate drm/tests: Add TDMS character rate connector state tests drm/connector: hdmi: Add custom hook to filter TMDS character rate drm/tests: Add HDMI connector rate filter hook tests drm/connector: hdmi: Compute bpc and format automatically drm/tests: Add HDMI connector bpc and format tests drm/connector: hdmi: Add Broadcast RGB property drm/tests: Add tests for Broadcast RGB property drm/connector: hdmi: Add RGB Quantization Range to the connector state drm/tests: Add RGB Quantization tests drm/connector: hdmi: Add Infoframes generation drm/tests: Add infoframes test drm/connector: hdmi: Create Infoframe DebugFS entries drm/vc4: hdmi: Switch to HDMI connector drm/vc4: tests: Remove vc4_dummy_plane structure drm/vc4: tests: Convert to plane creation helper drm/rockchip: inno_hdmi: Switch to HDMI connector drm/sun4i: hdmi: Switch to HDMI connector Documentation/gpu/kms-properties.csv | 1 - drivers/gpu/drm/Kconfig | 1 + drivers/gpu/drm/display/Kconfig | 8 + drivers/gpu/drm/display/Makefile | 2 + drivers/gpu/drm/display/drm_hdmi_helper.c | 57 + drivers/gpu/drm/display/drm_hdmi_state_helper.c | 696 ++++++++ drivers/gpu/drm/drm_atomic.c | 11 + drivers/gpu/drm/drm_atomic_uapi.c | 4 + drivers/gpu/drm/drm_connector.c | 194 +++ drivers/gpu/drm/drm_debugfs.c | 152 ++ drivers/gpu/drm/drm_mode_object.c | 1 + drivers/gpu/drm/rockchip/Kconfig | 1 + drivers/gpu/drm/rockchip/inno_hdmi.c | 143 +- drivers/gpu/drm/sun4i/Kconfig | 1 + drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c | 80 +- drivers/gpu/drm/tests/Makefile | 1 + drivers/gpu/drm/tests/drm_connector_test.c | 1032 +++++++++++- drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c | 1743 ++++++++++++++++++++ drivers/gpu/drm/tests/drm_kunit_edid.h | 482 ++++++ drivers/gpu/drm/vc4/Kconfig | 1 + 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 | 44 +- 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 +- include/drm/display/drm_hdmi_helper.h | 4 + include/drm/display/drm_hdmi_state_helper.h | 23 + include/drm/drm_connector.h | 229 +++ 29 files changed, 4851 insertions(+), 769 deletions(-) --- base-commit: 069a6c0e94f99437652dbb7229a56233c7d39968 change-id: 20230814-kms-hdmi-connector-state-616787e67927 Best regards,