From patchwork Tue May 23 22:15:11 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Melissa Wen X-Patchwork-Id: 13253081 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 26581C7EE29 for ; Tue, 23 May 2023 22:16:26 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 858F210E529; Tue, 23 May 2023 22:16:14 +0000 (UTC) Received: from fanzine2.igalia.com (fanzine2.igalia.com [213.97.179.56]) by gabe.freedesktop.org (Postfix) with ESMTPS id F18BB10E522; Tue, 23 May 2023 22:16:06 +0000 (UTC) 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=/lVw+fWAV5IJ2ukrdJ4miFAmciuLuAFhvK89d/XtZH4=; b=HFRIV5s7q2878rYZZer4E/0MWt l/mPYBNTzEO1VthcT2sAqIS1qDwLiiM84BYmgoCfpwipG495TzZdc8q0LgZnBVR0VaN/+SWlHDKhX zvApVnqHYrx2qE6hNv0zpDmqzEKTgre3zJ3YoO/qMszeEzSGZlIZo4SlUmzT5lkixQaLTWPNxzKZZ O7rnffwZENjb7g5P3DVYSqhpyf1h/ym6myVxtoUPI0lWtlbmmHyKbkXPgVndQp71mG5EGtuyqnixN PQltNHPOzxA/El0HMN1czYxHaKed/QXDabb2PFC51MX7qnv00LJKyAv7RhclMYyPIDVwjyyD6v3Ud CErD6gSw==; Received: from [38.44.72.37] (helo=killbill.home) by fanzine2.igalia.com with esmtpsa (Cipher TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim) id 1q1aIW-00HEOv-R4; Wed, 24 May 2023 00:16:04 +0200 From: Melissa Wen To: amd-gfx@lists.freedesktop.org, Harry Wentland , Rodrigo Siqueira , sunpeng.li@amd.com, Alex Deucher , dri-devel@lists.freedesktop.org, christian.koenig@amd.com, Xinhui.Pan@amd.com, airlied@gmail.com, daniel@ffwll.ch Subject: [PATCH 27/36] drm/amd/display: decouple steps for mapping CRTC degamma to DC plane Date: Tue, 23 May 2023 21:15:11 -0100 Message-Id: <20230523221520.3115570-28-mwen@igalia.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230523221520.3115570-1-mwen@igalia.com> References: <20230523221520.3115570-1-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: Sebastian Wick , Pekka Paalanen , Shashank Sharma , Alex Hung , Xaver Hugl , kernel-dev@igalia.com, Nicholas Kazlauskas , Joshua Ashton , sungjoon.kim@amd.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The next patch adds pre-blending degamma to AMD color mgmt pipeline, but pre-blending degamma caps (DPP) is currently in use to provide DRM CRTC atomic degamma or implict degamma on legacy gamma. Detach degamma usage regarging CRTC color properties to manage plane and CRTC color correction combinations. Signed-off-by: Melissa Wen --- .../amd/display/amdgpu_dm/amdgpu_dm_color.c | 59 +++++++++++++------ 1 file changed, 41 insertions(+), 18 deletions(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c index 5650b85cc28e..246f12532c48 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c @@ -790,20 +790,9 @@ int amdgpu_dm_update_crtc_color_mgmt(struct dm_crtc_state *crtc, return 0; } -/** - * amdgpu_dm_update_plane_color_mgmt: Maps DRM color management to DC plane. - * @crtc: amdgpu_dm crtc state - * @dc_plane_state: target DC surface - * - * Update the underlying dc_stream_state's input transfer function (ITF) in - * preparation for hardware commit. The transfer function used depends on - * the preparation done on the stream for color management. - * - * Returns: - * 0 on success. -ENOMEM if mem allocation fails. - */ -int amdgpu_dm_update_plane_color_mgmt(struct dm_crtc_state *crtc, - struct dc_plane_state *dc_plane_state) +static int +map_crtc_degamma_to_dc_plane(struct dm_crtc_state *crtc, + struct dc_plane_state *dc_plane_state) { const struct drm_color_lut *degamma_lut; enum dc_transfer_func_predefined tf = TRANSFER_FUNCTION_SRGB; @@ -826,8 +815,7 @@ int amdgpu_dm_update_plane_color_mgmt(struct dm_crtc_state *crtc, °amma_size); ASSERT(degamma_size == MAX_COLOR_LUT_ENTRIES); - dc_plane_state->in_transfer_func->type = - TF_TYPE_DISTRIBUTED_POINTS; + dc_plane_state->in_transfer_func->type = TF_TYPE_DISTRIBUTED_POINTS; /* * This case isn't fully correct, but also fairly @@ -863,7 +851,7 @@ int amdgpu_dm_update_plane_color_mgmt(struct dm_crtc_state *crtc, degamma_lut, degamma_size); if (r) return r; - } else if (crtc->cm_is_degamma_srgb) { + } else { /* * For legacy gamma support we need the regamma input * in linear space. Assume that the input is sRGB. @@ -873,8 +861,43 @@ int amdgpu_dm_update_plane_color_mgmt(struct dm_crtc_state *crtc, if (tf != TRANSFER_FUNCTION_SRGB && !mod_color_calculate_degamma_params(NULL, - dc_plane_state->in_transfer_func, NULL, false)) + dc_plane_state->in_transfer_func, + NULL, false)) return -ENOMEM; + } + + return 0; +} + +/** + * amdgpu_dm_update_plane_color_mgmt: Maps DRM color management to DC plane. + * @crtc: amdgpu_dm crtc state + * @dc_plane_state: target DC surface + * + * Update the underlying dc_stream_state's input transfer function (ITF) in + * preparation for hardware commit. The transfer function used depends on + * the preparation done on the stream for color management. + * + * Returns: + * 0 on success. -ENOMEM if mem allocation fails. + */ +int amdgpu_dm_update_plane_color_mgmt(struct dm_crtc_state *crtc, + struct dc_plane_state *dc_plane_state) +{ + bool has_crtc_cm_degamma; + int ret; + + has_crtc_cm_degamma = (crtc->cm_has_degamma || crtc->cm_is_degamma_srgb); + if (has_crtc_cm_degamma){ + /* AMD HW doesn't have post-blending degamma caps. When DRM + * CRTC atomic degamma is set, we maps it to DPP degamma block + * (pre-blending) or, on legacy gamma, we use DPP degamma to + * linearize (implicit degamma) from sRGB/BT709 according to + * the input space. + */ + ret = map_crtc_degamma_to_dc_plane(crtc, dc_plane_state); + if (ret) + return ret; } else { /* ...Otherwise we can just bypass the DGM block. */ dc_plane_state->in_transfer_func->type = TF_TYPE_BYPASS;