From patchwork Mon Jan 9 14:38:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Melissa Wen X-Patchwork-Id: 13093661 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 1F012C54EBD for ; Mon, 9 Jan 2023 14:44:23 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2067610E20F; Mon, 9 Jan 2023 14:44:11 +0000 (UTC) Received: from fanzine2.igalia.com (fanzine2.igalia.com [213.97.179.56]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3E65310E20D for ; Mon, 9 Jan 2023 14:44:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=igalia.com; s=20170329; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References: In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: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=OWwQ8u7sFMDvTmb5fE9F6XuAX0AS2r8sgD2pqpPqgV4=; b=kAFclU16RCUbRS43TnofiwMD4I 88haYRtghBErhgU7N0Vs3/2oMPK0osGqyXOle7pnwfTdPC8zxA7afgyaxB847zmvzZZS5YR9QJxBt SYeGP6aRLiGt3gcVIG27e6YTKlj6fvtgBT57xGhAth6lUdKlbUIgRycghvWcnECWiWPT522+cAICU sjm/VokbHlvGZuBpICqX0vG79oWW06ljrIZfkvQutAr6IwuHZU81nfyFC7Wsi814RIYhBvuynavZ8 MfZ8/y0ypnhMKZCYbV/aRhb7WHLaXhQA3Dz/QpgNM3vgt4RFrrDvZMZD8jNJr8B6C5XNfU4FkPMVX tcpMWhsA==; 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 1pEtNV-003TyM-Oo; Mon, 09 Jan 2023 15:43:57 +0100 From: Melissa Wen To: maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, daniel@ffwll.ch Subject: [RFC PATCH v2 04/18] drm/drm_color_mgmt: add function to create 3D LUT modes supported Date: Mon, 9 Jan 2023 13:38:32 -0100 Message-Id: <20230109143846.1966301-5-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 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: , Cc: laurent.pinchart+renesas@ideasonboard.com, Shashank Sharma , alex.hung@amd.com, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Melissa Wen , seanpaul@chromium.org, kernel-dev@igalia.com, bhawanpreet.lakha@amd.com, nicholas.kazlauskas@amd.com, Joshua Ashton , sungjoon.kim@amd.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" DRM color function to create modes for lut3d mode property from an array of drm_color_lut3d_mode modes supported by the HW and advertise to userspace. Userspace can get the description of a specific mode in the enum list from its blob data. Signed-off-by: Melissa Wen --- drivers/gpu/drm/drm_color_mgmt.c | 43 +++++++++++++++++++++++++++++++- include/drm/drm_color_mgmt.h | 4 +++ 2 files changed, 46 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_color_mgmt.c b/drivers/gpu/drm/drm_color_mgmt.c index f92633b3b67e..6ce48007cdd4 100644 --- a/drivers/gpu/drm/drm_color_mgmt.c +++ b/drivers/gpu/drm/drm_color_mgmt.c @@ -104,7 +104,7 @@ * LUT3D property. A mode specifies size, stride, bit depth and color * format and depends on the underlying hardware). If drivers support * multiple 3D LUT modes, they should be declared in a array of - * drm_color_lut3d_mode and they will be advertised as an enum. + * drm_mode_lut3d_mode and they will be advertised as an enum. * * “GAMMA_LUT”: * Blob property to set the gamma lookup table (LUT) mapping pixel data @@ -228,6 +228,47 @@ void drm_crtc_enable_color_mgmt(struct drm_crtc *crtc, } EXPORT_SYMBOL(drm_crtc_enable_color_mgmt); +int drm_crtc_create_lut3d_mode_property(struct drm_crtc *crtc, + const struct drm_mode_lut3d_mode modes[], + unsigned int num_modes) +{ + struct drm_device *dev = crtc->dev; + struct drm_property_blob *blob; + struct drm_property *prop; + char *name; + int ret; + + if (dev->mode_config.lut3d_mode_property) + return 0; + + prop = drm_property_create(dev, DRM_MODE_PROP_ENUM, "LUT3D_MODE", num_modes); + if (!prop) + return -EINVAL; + + for (int i = 0; i < num_modes; i++) { + blob = drm_property_create_blob(dev, sizeof(modes[i]), &modes[i]); + if (IS_ERR(blob)) + return PTR_ERR(blob); + + name = kasprintf(GFP_KERNEL, "lut3d_%d_%dbit", + modes[i].lut_size, modes[i].bit_depth); + if (!name) + return -ENOMEM; + + ret = drm_property_add_enum(prop, blob->base.id, name); + if (ret) { + drm_property_blob_put(blob); + kfree(name); + return ret; + } + kfree(name); + } + dev->mode_config.lut3d_mode_property = prop; + + return 0; +} +EXPORT_SYMBOL(drm_crtc_create_lut3d_mode_property); + /** * drm_mode_crtc_set_gamma_size - set the gamma table size * @crtc: CRTC to set the gamma table size for diff --git a/include/drm/drm_color_mgmt.h b/include/drm/drm_color_mgmt.h index 81c298488b0c..af9305925572 100644 --- a/include/drm/drm_color_mgmt.h +++ b/include/drm/drm_color_mgmt.h @@ -59,6 +59,10 @@ void drm_crtc_enable_color_mgmt(struct drm_crtc *crtc, bool has_ctm, uint gamma_lut_size); +int drm_crtc_create_lut3d_mode_property(struct drm_crtc *crtc, + const struct drm_mode_lut3d_mode modes[], + unsigned int num_modes); + int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, int gamma_size);