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Tue, 1 Nov 2022 10:05:34 +0000 From: Hsia-Jun Li To: dri-devel@lists.freedesktop.org Cc: airlied@linux.ie, daniel@ffwll.ch, ezequiel@vanguardiasur.com.ar, helen.koike@collabora.com, hverkuil-cisco@xs4all.nl, jszhang@kernel.org, laurent.pinchart@ideasonboard.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, maarten.lankhorst@linux.intel.com, mchehab@kernel.org, mripard@kernel.org, nicolas@ndufresne.ca, ribalda@chromium.org, sakari.ailus@linux.intel.com, sebastian.hesselbarth@gmail.com, tfiga@chromium.org, tzimmermann@suse.de, "Hsia-Jun(Randy) Li" Subject: [PATCH v3 0/4] Add pixel formats used in Synatpics SoC Date: Tue, 1 Nov 2022 18:04:44 +0800 Message-Id: <20221101100448.66712-1-randy.li@synaptics.com> X-Mailer: git-send-email 2.37.3 X-ClientProxiedBy: PH0PR07CA0027.namprd07.prod.outlook.com (2603:10b6:510:5::32) To DM6PR03MB5196.namprd03.prod.outlook.com (2603:10b6:5:24a::19) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM6PR03MB5196:EE_|MW4PR03MB6362:EE_ X-MS-Office365-Filtering-Correlation-Id: d15f44b2-6ec6-47c8-f1b0-08dabbf09e00 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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I just disclose the pixel formats used in the video codecs and display pipeline this time. Actually any device connected to the MTR module could support those tiled and compressed pixel formats. We may not be able to post any drivers here in a short time, the most of work in this platform is done in the Trusted Execution Environment and we didn't use the optee event its client framework. Please notice that, the memory planes needed for video codecs could be one more than display case. That extra planes in the video codecs is for the decoding internal usage, it can't append to the luma or chroma buffer as many other drivers do, because this buffer could be only accessed by the video codecs itself, it requests a different memory security attributes. There is not a proper place in v4l2 m2m to allocate a large size buffer, we don't know when the users won't allocate more graphics buffers. Although we could allocate it in a step likes STREAMON, it would lead unusual delaying in starting of video playbacl. https://synaptics.com/products/multimedia-solutions Changlog v3: There was a mistake in format macro. Correcting the description of 64L4 variant modifiers. v2: The DRM modifiers in the first draft is too simple, it can't tell the tiles in group attribute in memory layout. Removing the v4l2 fourcc. Adding a document for the future v4l2 extended fmt. v1: first draft of DRM modifiers Try to put basic tile formats into v4l2 fourcc Hsia-Jun(Randy) Li (3): drm/fourcc: Add Synaptics VideoSmart tiled modifiers media: videodev2.h: add pixel format modifiers media: videodev2.h: add Synaptics tiled modifiers Randy Li (1): media: docs: Add Synpatics tile modifiers .../media/v4l/pixfmt-synaptics.rst | 80 +++++++++++++++++++ .../userspace-api/media/v4l/pixfmt.rst | 1 + include/uapi/drm/drm_fourcc.h | 75 +++++++++++++++++ include/uapi/linux/videodev2.h | 50 ++++++++++++ 4 files changed, 206 insertions(+) create mode 100644 Documentation/userspace-api/media/v4l/pixfmt-synaptics.rst