From nobody Tue Sep 16 02:28:49 2025 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2062AC5479D for ; Mon, 9 Jan 2023 14:44:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229551AbjAIOoV (ORCPT ); Mon, 9 Jan 2023 09:44:21 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33478 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233446AbjAIOoE (ORCPT ); Mon, 9 Jan 2023 09:44:04 -0500 Received: from fanzine2.igalia.com (fanzine2.igalia.com [213.97.179.56]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3493C1DF02 for ; Mon, 9 Jan 2023 06:44:03 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=igalia.com; s=20170329; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=9648VuOhk39mU4vg9P8mrkFGTnpgxLJ7uh8m6YPwrNA=; b=NMPPemoP+IGrVEVN7n9QvaBAEc xnsdpArCjxljyG+xkK+NSzx9kcYcpp3MM+SCH1sHSIbB5AgNnYpzlcp91xRyIRwPemLFkOPT2j1Ij esfPb4u2z3zDGc4+6PQRvGeQHd4z0HwXF3ihgULOT6P/Ycs8AnNWWEFdR0vIZi+QG6w+ajnffhBdD x/gbiBJ+/HYn/QiFKmRWbk3toGrzTI1WMs+rJZvZvKyVgM2qP+HYIJWlugxU1TyEadmjGrL0rIg35 RjzFh06bbyRZBk5lBk4cayR6G6m1BO/nbjWUxExXKNvOQoxgxi+kvUGXmijc+b5GM+oyAxVwwvZxA W9d3LIMw==; Received: from [41.74.137.107] (helo=killbill.home) by fanzine2.igalia.com with esmtpsa (Cipher TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim) id 1pEtNL-003TyM-DW; Mon, 09 Jan 2023 15:43:47 +0100 From: Melissa Wen To: maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, daniel@ffwll.ch Cc: Joshua Ashton , alex.hung@amd.com, nicholas.kazlauskas@amd.com, sungjoon.kim@amd.com, seanpaul@chromium.org, bhawanpreet.lakha@amd.com, Shashank Sharma , ville.syrjala@linux.intel.com, kernel-dev@igalia.com, laurent.pinchart+renesas@ideasonboard.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [RFC PATCH v2 01/18] drm: Add 3D LUT mode and its attributes Date: Mon, 9 Jan 2023 13:38:29 -0100 Message-Id: <20230109143846.1966301-2-mwen@igalia.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20230109143846.1966301-1-mwen@igalia.com> References: <20230109143846.1966301-1-mwen@igalia.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Alex Hung A struct is defined for 3D LUT modes to be supported by hardware. The elements includes lut_size, lut_stride, bit_depth, color_format and flags. Note: A patchset "IGT tests for pre-blending 3D LUT interfaces" for this proposal is sent to IGT mailing list. Signed-off-by: Alex Hung --- include/uapi/drm/drm_mode.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h index fa953309d9ce..fddb86dad4db 100644 --- a/include/uapi/drm/drm_mode.h +++ b/include/uapi/drm/drm_mode.h @@ -849,6 +849,23 @@ struct drm_color_lut { __u16 reserved; }; =20 +/* + * struct drm_mode_lut3d_mode - 3D LUT mode information. + * @lut_size: number of valid points on every dimension of 3D LUT. + * @lut_stride: number of points on every dimension of 3D LUT. + * @bit_depth: number of bits of RGB. If color_mode defines entries with h= igher + * bit_depth the least significant bits will be truncated. + * @color_format: fourcc values, ex. DRM_FORMAT_XRGB16161616 or DRM_FORMAT= _XBGR16161616. + * @flags: flags for hardware-sepcific features + */ +struct drm_mode_lut3d_mode { + __u16 lut_size; + __u16 lut_stride[3]; + __u16 bit_depth; + __u32 color_format; + __u32 flags; +}; + /** * struct hdr_metadata_infoframe - HDR Metadata Infoframe Data. * --=20 2.35.1