From patchwork Thu Oct 5 17:15:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Melissa Wen X-Patchwork-Id: 13410502 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 0B53EE9271C for ; Thu, 5 Oct 2023 17:17:10 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id AF21A10E473; Thu, 5 Oct 2023 17:16:50 +0000 (UTC) Received: from fanzine2.igalia.com (fanzine.igalia.com [178.60.130.6]) by gabe.freedesktop.org (Postfix) with ESMTPS id AF2AE10E46D; Thu, 5 Oct 2023 17:16:41 +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=8vRTBnxiXm2Mmv5FX1iRb1SQ2SEIA7L7XpcdnKWARmw=; b=HQTjEWFYCE1TuzUMp18AgaLYLV UjIdgqmQAxWNSRR6U1a2q8gtrvK6s6m8GZ/Xi+FLqCH7RlktrV2PAnR8oeVBJ3XSMjWFjcEy5iiL7 QQ1JA0kPQ5eNPQFuWC+CPM9vweMIIax6BPhUr5qGZdCvqBr925DcOWkvncUz8gykr+xIFpdxWZpaG Xj0bLw8e7gAVysfjr6gnIFTfKgWYY3uW4rEyxFgppDZ7/usD5MZ3XuFOOr1unKRZW55wtAuwyOk0V L18ZDyITmnS+jGjjjwEe1dp87lIcqr3kAcaIgMoOs3ET2kPSc3I/baeeDlHdFisPGGSpCFF8/ukLQ 9wbaCVGw==; Received: from [102.213.205.115] (helo=killbill.home) by fanzine2.igalia.com with esmtpsa (Cipher TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim) id 1qoRxn-00CFJN-32; Thu, 05 Oct 2023 19:16:39 +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, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de Subject: [PATCH v4 32/32] drm/amd/display: Add 3x4 CTM support for plane CTM Date: Thu, 5 Oct 2023 16:15:27 -0100 Message-Id: <20231005171527.203657-33-mwen@igalia.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20231005171527.203657-1-mwen@igalia.com> References: <20231005171527.203657-1-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" From: Joshua Ashton Create drm_color_ctm_3x4 to support 3x4-dimension plane CTM matrix and convert DRM CTM to DC CSC float matrix. v3: - rename ctm2 to ctm_3x4 (Harry) Reviewed-by: Harry Wentland Signed-off-by: Joshua Ashton --- .../amd/display/amdgpu_dm/amdgpu_dm_color.c | 28 +++++++++++++++++-- .../amd/display/amdgpu_dm/amdgpu_dm_plane.c | 2 +- include/uapi/drm/drm_mode.h | 8 ++++++ 3 files changed, 34 insertions(+), 4 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 bc9dd75e8881..655c18c9a2d7 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 @@ -433,6 +433,28 @@ static void __drm_ctm_to_dc_matrix(const struct drm_color_ctm *ctm, } } +/** + * __drm_ctm_3x4_to_dc_matrix - converts a DRM CTM 3x4 to a DC CSC float matrix + * @ctm: DRM color transformation matrix with 3x4 dimensions + * @matrix: DC CSC float matrix + * + * The matrix needs to be a 3x4 (12 entry) matrix. + */ +static void __drm_ctm_3x4_to_dc_matrix(const struct drm_color_ctm_3x4 *ctm, + struct fixed31_32 *matrix) +{ + int i; + + /* The format provided is S31.32, using signed-magnitude representation. + * Our fixed31_32 is also S31.32, but is using 2's complement. We have + * to convert from signed-magnitude to 2's complement. + */ + for (i = 0; i < 12; i++) { + /* gamut_remap_matrix[i] = ctm[i - floor(i/4)] */ + matrix[i] = dc_fixpt_from_s3132(ctm->matrix[i]); + } +} + /** * __set_legacy_tf - Calculates the legacy transfer function * @func: transfer function @@ -1176,7 +1198,7 @@ int amdgpu_dm_update_plane_color_mgmt(struct dm_crtc_state *crtc, { struct amdgpu_device *adev = drm_to_adev(crtc->base.state->dev); struct dm_plane_state *dm_plane_state = to_dm_plane_state(plane_state); - struct drm_color_ctm *ctm = NULL; + struct drm_color_ctm_3x4 *ctm = NULL; struct dc_color_caps *color_caps = NULL; bool has_crtc_cm_degamma; int ret; @@ -1231,7 +1253,7 @@ int amdgpu_dm_update_plane_color_mgmt(struct dm_crtc_state *crtc, /* Setup CRTC CTM. */ if (dm_plane_state->ctm) { - ctm = (struct drm_color_ctm *)dm_plane_state->ctm->data; + ctm = (struct drm_color_ctm_3x4 *)dm_plane_state->ctm->data; /* * DCN2 and older don't support both pre-blending and * post-blending gamut remap. For this HW family, if we have @@ -1243,7 +1265,7 @@ int amdgpu_dm_update_plane_color_mgmt(struct dm_crtc_state *crtc, * mapping CRTC CTM to MPC and keeping plane CTM setup at DPP, * as it's done by dcn30_program_gamut_remap(). */ - __drm_ctm_to_dc_matrix(ctm, dc_plane_state->gamut_remap_matrix.matrix); + __drm_ctm_3x4_to_dc_matrix(ctm, dc_plane_state->gamut_remap_matrix.matrix); dc_plane_state->gamut_remap_matrix.enable_remap = true; dc_plane_state->input_csc_color_matrix.enable_adjustment = false; diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c index d9537d9bf18c..a3935c56189b 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c @@ -1549,7 +1549,7 @@ dm_atomic_plane_set_property(struct drm_plane *plane, ret = drm_property_replace_blob_from_id(plane->dev, &dm_plane_state->ctm, val, - sizeof(struct drm_color_ctm), -1, + sizeof(struct drm_color_ctm_3x4), -1, &replaced); dm_plane_state->base.color_mgmt_changed |= replaced; return ret; diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h index 46becedf5b2f..a811d24e8ed5 100644 --- a/include/uapi/drm/drm_mode.h +++ b/include/uapi/drm/drm_mode.h @@ -838,6 +838,14 @@ struct drm_color_ctm { __u64 matrix[9]; }; +struct drm_color_ctm_3x4 { + /* + * Conversion matrix with 3x4 dimensions in S31.32 sign-magnitude + * (not two's complement!) format. + */ + __u64 matrix[12]; +}; + struct drm_color_lut { /* * Values are mapped linearly to 0.0 - 1.0 range, with 0x0 == 0.0 and