From patchwork Wed Sep 13 06:05:58 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: 13382484 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 817FBEEB596 for ; Wed, 13 Sep 2023 06:12:04 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E081E10E35D; Wed, 13 Sep 2023 06:11:55 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id E255E10E26D; Wed, 13 Sep 2023 06:11:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1694585513; x=1726121513; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=mA8VurIMNSYGfTXSwzwX47Tk3PNUx/Y7aVB24PGI2Cg=; b=c3aZF7tmIHj2iP3xD2CcO4eozsjiNWAUQBlJC+4FEqNCeK0CvLz4s+il +HE1RfuFC9BHwOHCrAnYC7PiX4fofvo0egP/QpwrdInm6wRyPhW0mRv93 iAIG9DEecLS5xF1kGGCnngV4M1ZXJOuMjy714UsyXBEah0tQBajf8lMST ZryoiVUWPRuxrfdhf0WjvK/PzW8btIyHEC1xqWLKFdnG3+4A9/DLTfSyp 6L68t9tAZXbDNCs694/Gx5907ELYytzzkhagk2rCaeZRnv6k92qBNxqgh nP3zDMLhiptKpQ3jRmXZ2JDTwzU7AzogsBjA/Rsdnq7sbW7P8/NEHGP7O w==; X-IronPort-AV: E=McAfee;i="6600,9927,10831"; a="377482531" X-IronPort-AV: E=Sophos;i="6.02,142,1688454000"; d="scan'208";a="377482531" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Sep 2023 23:11:30 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10831"; a="693741680" X-IronPort-AV: E=Sophos;i="6.02,142,1688454000"; d="scan'208";a="693741680" Received: from mgolanimitul-x299-ud4-pro.iind.intel.com ([10.190.239.114]) by orsmga003.jf.intel.com with ESMTP; 12 Sep 2023 23:11:28 -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: Wed, 13 Sep 2023 11:35:58 +0530 Message-Id: <20230913060606.1105349-1-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: jani.nikula@intel.com, suraj.kandpal@intel.com, Mitul Golani , ankit.k.nautiyal@intel.com, swati2.sharma@intel.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" his 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 prescision 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 | 83 +++++++++++++++++++ .../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, 275 insertions(+), 74 deletions(-) create mode 100644 drivers/gpu/drm/i915/display/intel_fractional_helper.h