From mboxrd@z Thu Jan 1 00:00:00 1970 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 5F9D2F5581D for ; Mon, 20 Apr 2026 11:30:59 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id F28B710E4FE; Mon, 20 Apr 2026 11:30:58 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="csVqu00h"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.15]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5DABF10E4F9; Mon, 20 Apr 2026 11:30:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1776684657; x=1808220657; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=+hwSvWb4S9geX0wZbeGIGKy/wINtU8Sfn7NNy3j7gkc=; b=csVqu00hKzP5XpkFe/gSfzwnuRGucbAgG+jAGjxJUPa/2Y5A86ZwZrd5 spgMiTv8b6hhaZx6xDXRWnLMy/cruq+oXzFGJwKQSJQfzWeMcUeW38AcL Fq+EJUW1vTkRQQUrrc+eugS2OymeF/wIcpTwsKD4gswYCOEqcJTojOCya v43DXcgE40M0J/KMbKxAyMQu1b6alTSw2hlftVGIQjRMSAzf+RejrMxZd sajn7+AVa1PvjnaImYAHGpc+N1hP0bVLzZDOHhn2oQcIIJdf8RHmOeBMr YTbaWSS4BvJCmHtqGcff2pAonyE6GdnQnS2DiOtsn6MSo8q0qgtyknllm A==; X-CSE-ConnectionGUID: GId+1cYTS62fcCjt6hUbtQ== X-CSE-MsgGUID: BpanFt5MRDq7CYMlZ9Lg5Q== X-IronPort-AV: E=McAfee;i="6800,10657,11762"; a="77722739" X-IronPort-AV: E=Sophos;i="6.23,189,1770624000"; d="scan'208";a="77722739" Received: from orviesa005.jf.intel.com ([10.64.159.145]) by fmvoesa109.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Apr 2026 04:30:57 -0700 X-CSE-ConnectionGUID: uUlQ/d0wTZ6T1hemZ3MHlg== X-CSE-MsgGUID: 3uHnYVtdSe+w5P0rXr54CA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,189,1770624000"; d="scan'208";a="236690594" Received: from nemesa.iind.intel.com ([10.190.239.22]) by orviesa005.jf.intel.com with ESMTP; 20 Apr 2026 04:30:56 -0700 From: Nemesa Garg To: intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org, dri-devel@lists.freedesktop.org Cc: Nemesa Garg Subject: [PATCH 1/2] drm/dp: Define DSC bpp delta DPCD fields Date: Mon, 20 Apr 2026 16:56:10 +0530 Message-Id: <20260420112611.1481530-2-nemesa.garg@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20260420112611.1481530-1-nemesa.garg@intel.com> References: <20260420112611.1481530-1-nemesa.garg@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" Add DP_DSC_MAX_BPP_DELTA and related field and mask helper macros for RGB/YCbCr444 delta and YCbCr420 delta encoding. Signed-off-by: Nemesa Garg --- include/drm/display/drm_dp.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/include/drm/display/drm_dp.h b/include/drm/display/drm_dp.h index 8b15d3eeb716..2afd33d90a0e 100644 --- a/include/drm/display/drm_dp.h +++ b/include/drm/display/drm_dp.h @@ -354,9 +354,15 @@ # define DP_DSC_20_PER_DP_DSC_SINK (1 << 1) # define DP_DSC_24_PER_DP_DSC_SINK (1 << 2) -#define DP_DSC_BITS_PER_PIXEL_INC 0x06F +#define MIN_DSC_BPP_DELTA_444 16 +#define MIN_DSC_BPP_DELTA_420 12 +#define BPP_DELTA_SHIFT_420 5 + +#define DP_DSC_MAX_BPP_DELTA 0x06E # define DP_DSC_RGB_YCbCr444_MAX_BPP_DELTA_MASK 0x1f # define DP_DSC_RGB_YCbCr420_MAX_BPP_DELTA_MASK 0xe0 + +#define DP_DSC_BITS_PER_PIXEL_INC 0x06F # define DP_DSC_BITS_PER_PIXEL_1_16 0x0 # define DP_DSC_BITS_PER_PIXEL_1_8 0x1 # define DP_DSC_BITS_PER_PIXEL_1_4 0x2 -- 2.25.1