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Mon, 30 Mar 2026 10:34:55 -0500 Received: from hwentlanryzen (10.180.168.240) by satlexmb08.amd.com (10.181.42.217) with Microsoft SMTP Server id 15.2.2562.17 via Frontend Transport; Mon, 30 Mar 2026 10:34:54 -0500 From: Harry Wentland To: , CC: Harry Wentland , Alex Hung , Daniel Stone , Chaitanya Kumar Borah , Uma Shankar , Louis Chauvet , Melissa Wen , Simon Ser Subject: [RFC PATCH v2 0/9] YUV conversion colorop with amdgpu and VKMS Date: Mon, 30 Mar 2026 11:34:42 -0400 Message-ID: <20260330153451.99472-1-harry.wentland@amd.com> X-Mailer: git-send-email 2.53.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ5PEPF000001EB:EE_|CH2PR12MB4055:EE_ X-MS-Office365-Filtering-Correlation-Id: c2e1c3a5-0eed-4fdb-a513-08de8e71e548 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; ARA:13230040|36860700016|376014|82310400026|1800799024|56012099003|18002099003; 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DIR:OUT; SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 6aEGDO50/oCvxbhDBjHHktZFERj9vKzmfbX+xcx3z8/zgdhOkpl9nQo5eDq++Iw8SSc6EzpHSYZv4MpgSjCPZjWQRW2JqP0obUqisLnaacwvgycpGETPq/YnElqUUrGWvUkDJXot0S9Xagxb65aXX4TTsNsHX8wVY0GiA69MdI8l3L58+EhoLUYMKYVNbT5vTTD1aCC+83qYzISOG0fees06UjyxXfTSITzsOfA6TcpnrahoUdONm8/U+IXreyX5YtbN+D0yxG0VkvUSgqwagIkqdchh9f+xmVecqteYPrA+a3S4DjPR1SciNiftO+3r5QYIj5Zs67VeGDxRHrAREFxptPmLw3MMqtnmXUmbSHJb0Q92nWCZCDChujJJ9jw1DRPZb1s9gWz2wTVoqJUVd+IrUWhtSEP6geWbx1s+hvSUDldSuxMgE4GxSaynOZ/4 X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 Mar 2026 15:34:56.1029 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: c2e1c3a5-0eed-4fdb-a513-08de8e71e548 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d; Ip=[165.204.84.17]; Helo=[satlexmb08.amd.com] X-MS-Exchange-CrossTenant-AuthSource: SJ5PEPF000001EB.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH2PR12MB4055 X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" When we merged the drm_plane color pipeline API the major gap that existed was the lack of a YUV to RGB conversion colorop. We deprecated any legacy drm_plane color properties, which means that the COLOR_RANGE and COLOR_ENCODING properties can't be used with the COLOR_PIPELINE property on a drm_plane. In practice this means that we can't use a COLOR_PIPELINE on YCbCr encoded framebuffers. This patchset expands on the CSC_FF colorop proposed by Chaitanya and adds limited range variants of the YCbCr to RGB conversions. His full patchset can be found at https://patchwork.freedesktop.org/patch/709860 This code has been tested with IGT and an experimental KWin branch. IGT branch: https://gitlab.freedesktop.org/hwentland/igt-gpu-tools/-/tree/csc-ff-colorop KWin branch: https://invent.kde.org/hwentlan/kwin/-/tree/csc-3dlut The kernel branch containing these changes, based on drm-misc-next can be found at: https://gitlab.freedesktop.org/hwentland/linux/-/tree/csc-ff-colorop In order to successfully use this branch you might need a few bugfixes. The kernel tree containing those fixes plus these patches can be found at: https://gitlab.freedesktop.org/hwentland/linux/-/tree/csc-ff-colorop-all Further background on this work can be found at: https://hwentland.github.io/2026/03/10/plane-color-pipeline-csc-3d-lut-kwin.html v2: - use Chaitanya's CSC_FF block for named matrices Cc: Alex Hung Cc: Daniel Stone Cc: Chaitanya Kumar Borah Cc: Uma Shankar Cc: Louis Chauvet Cc: Melissa Wen Cc: Simon Ser Chaitanya Kumar Borah (1): drm/colorop: Add DRM_COLOROP_CSC_FF Harry Wentland (8): drm/colorop: Add limited-range YUV-to-RGB CSC FF enum values drm/vkms: Add CSC FF colorop to color pipeline drm/vkms: Add atomic check and matrix handling for CSC FF colorop drm/amd/display: Add CSC FF colorop to color pipeline drm/amd/display: Implement CSC FF colorop color space mapping drm/amd/display: Use GAMCOR for first TF if CSC is used drm/amd/display: Check actual state during commit_tail drm/amd/display: Set color_space to plane_infos .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 14 ++- .../amd/display/amdgpu_dm/amdgpu_dm_color.c | 102 ++++++++++++++++- .../amd/display/amdgpu_dm/amdgpu_dm_colorop.c | 27 ++++- .../amd/display/amdgpu_dm/amdgpu_dm_colorop.h | 1 + drivers/gpu/drm/drm_atomic.c | 4 + drivers/gpu/drm/drm_atomic_uapi.c | 4 + drivers/gpu/drm/drm_colorop.c | 108 ++++++++++++++++++ drivers/gpu/drm/vkms/vkms_colorop.c | 66 +++++++---- drivers/gpu/drm/vkms/vkms_composer.c | 6 + drivers/gpu/drm/vkms/vkms_plane.c | 70 +++++++++++- include/drm/drm_colorop.h | 102 +++++++++++++++++ include/uapi/drm/drm_mode.h | 13 +++ 12 files changed, 487 insertions(+), 30 deletions(-) -- 2.53.0