From patchwork Fri Sep 29 07:13:14 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Golani, Mitulkumar Ajitkumar" X-Patchwork-Id: 13403791 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 1F7BAE743F9 for ; Fri, 29 Sep 2023 08:17:55 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id AF1E310E6D1; Fri, 29 Sep 2023 08:17:46 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id B60A810E6CA; Fri, 29 Sep 2023 08:17:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1695975463; x=1727511463; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=/eDp/o//qdFrMlpO6bN0mqi/TLJLxTv2Y3NPZ0dpsqM=; b=AlLcbZ3jASt3LRDqIwNaD/GitPoOfJ8916woo6hpVQzCHXfwkrGo3cOa 46mWxulIOcVzc/TOMlCpB0AnP124g6FW5G23Zf7yFQfBhJD2qinSzK8oI qtkCHwAqjNGht2RNmXvD8NipW80f3Ox610nEn10xjKQE+Dkq1Z1YVAhIY 8G89lPstXhEns9uHC99PqEJplIngxWe6Fs1CoLAdeoKVgdJo9NFfD3NgM riKviyVxujCz2M3+IUuw4IOMVOgtRdiW+HBHEH7TIP+ijOPD18rKh1XoR ghYhTcduS4fnk2n5VtcItl75o9Vz79uRBOEA7u9NmGw7rhNEt/77uVkG7 g==; X-IronPort-AV: E=McAfee;i="6600,9927,10847"; a="379520246" X-IronPort-AV: E=Sophos;i="6.03,186,1694761200"; d="scan'208";a="379520246" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Sep 2023 00:19:07 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10847"; a="815517381" X-IronPort-AV: E=Sophos;i="6.03,186,1694761200"; d="scan'208";a="815517381" Received: from mgolanimitul-x299-ud4-pro.iind.intel.com ([10.190.239.114]) by fmsmga008.fm.intel.com with ESMTP; 29 Sep 2023 00:19:04 -0700 From: Mitul Golani To: dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org Subject: [PATCH 0/8] Add DSC fractional bpp support Date: Fri, 29 Sep 2023 12:43:14 +0530 Message-Id: <20230929071322.945521-1-mitulkumar.ajitkumar.golani@intel.com> X-Mailer: git-send-email 2.25.1 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: suraj.kandpal@intel.com, suijingfeng@loongson.cn, jani.nikula@intel.com, Mitul Golani , swati2.sharma@intel.com, mripard@kernel.org, ankit.k.nautiyal@intel.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" This patch series adds support for DSC fractional compressed bpp for MTL+. The series starts with some fixes, followed by patches that lay groundwork to iterate over valid compressed bpps to select the 'best' compressed bpp with optimal link configuration (taken from upstream series: https://patchwork.freedesktop.org/series/105200/). The later patches, add changes to accommodate compressed bpp with fractional part, including changes to QP calculations. To get the 'best' compressed bpp, we iterate over the valid compressed bpp values, but with fractional step size 1/16, 1/8, 1/4 or 1/2 as per sink support. The last 2 patches add support to depict DSC sink's fractional support, and debugfs to enforce use of fractional bpp, while choosing an appropriate compressed bpp. Ankit Nautiyal (5): drm/display/dp: Add helper function to get DSC bpp precision drm/i915/display: Store compressed bpp in U6.4 format drm/i915/display: Consider fractional vdsc bpp while computing m_n values drm/i915/audio : Consider fractional vdsc bpp while computing tu_data drm/i915/dp: Iterate over output bpp with fractional step size Swati Sharma (2): drm/i915/dsc: Add debugfs entry to validate DSC fractional bpp drm/i915/dsc: Allow DSC only with fractional bpp when forced from debugfs Vandita Kulkarni (1): drm/i915/dsc/mtl: Add support for fractional bpp drivers/gpu/drm/display/drm_dp_helper.c | 27 ++++++ drivers/gpu/drm/i915/display/icl_dsi.c | 11 +-- drivers/gpu/drm/i915/display/intel_audio.c | 17 ++-- drivers/gpu/drm/i915/display/intel_bios.c | 6 +- drivers/gpu/drm/i915/display/intel_cdclk.c | 6 +- drivers/gpu/drm/i915/display/intel_display.c | 8 +- drivers/gpu/drm/i915/display/intel_display.h | 2 +- .../drm/i915/display/intel_display_debugfs.c | 84 +++++++++++++++++++ .../drm/i915/display/intel_display_types.h | 4 +- drivers/gpu/drm/i915/display/intel_dp.c | 81 +++++++++++------- drivers/gpu/drm/i915/display/intel_dp_mst.c | 32 ++++--- drivers/gpu/drm/i915/display/intel_fdi.c | 2 +- .../i915/display/intel_fractional_helper.h | 36 ++++++++ .../gpu/drm/i915/display/intel_qp_tables.c | 3 - drivers/gpu/drm/i915/display/intel_vdsc.c | 30 +++++-- include/drm/display/drm_dp_helper.h | 1 + 16 files changed, 276 insertions(+), 74 deletions(-) create mode 100644 drivers/gpu/drm/i915/display/intel_fractional_helper.h