From patchwork Thu May 30 06:04:00 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Golani, Mitulkumar Ajitkumar" X-Patchwork-Id: 13679784 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 179C9C25B74 for ; Thu, 30 May 2024 06:14:35 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B79C411B464; Thu, 30 May 2024 06:14:34 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="XEIaVwoZ"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.10]) by gabe.freedesktop.org (Postfix) with ESMTPS id 78FCC11B462; Thu, 30 May 2024 06:14:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1717049672; x=1748585672; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=F1iqdKNPD48w2BmbKCBrR2vA13+k6uHLPy7SDMK1TS8=; b=XEIaVwoZ8JPnQLccUO1MD+TGEIo3EG/6qRrf8ZCzRUPftbTNc+spnw2o Wfz3x4Dw83DrfQ5plm9O+mur31ArqsTxWBFefWuxghWJJHlxahi2AKGmr 0nefW2JIIzjjVbNgpNzDIc2hmtjRsoxumpQj7ZTtzAgi21t34BLERajwg es+0OhYC07kRKF9sYEvLq/Uj0MhmG6RXqqpFly+AcpZ0M9xVbjEVg2Lwf 58pWwK2OQdlA2DHAcGVEWlpQ+rdndClpB9UnniHNsXxA4woqTdttmk/CF OoW5ehRJuE7/GHT+JcJYdy4vstVpXh2YZa1VG5VGOQDdo7ty3XQZrsD+m w==; X-CSE-ConnectionGUID: awEVlJyERceB1jWa3Z/aJQ== X-CSE-MsgGUID: y1ZeeSbPSqi4/E5UErr7hA== X-IronPort-AV: E=McAfee;i="6600,9927,11087"; a="24915496" X-IronPort-AV: E=Sophos;i="6.08,199,1712646000"; d="scan'208";a="24915496" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by fmvoesa104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 May 2024 23:14:31 -0700 X-CSE-ConnectionGUID: hOOEyb1HQEWKPzErp1VeUg== X-CSE-MsgGUID: LKqvZUtSQHGx6A6e2+FW/A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,199,1712646000"; d="scan'208";a="36335633" Received: from mgolanimitul-x299-ud4-pro.iind.intel.com ([10.190.239.114]) by orviesa007.jf.intel.com with ESMTP; 29 May 2024 23:14:29 -0700 From: Mitul Golani To: intel-gfx@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org, ankit.k.nautiyal@intel.com, jani.nikula@intel.com Subject: [PATCH v10 0/8] Implement CMRR Support Date: Thu, 30 May 2024 11:34:00 +0530 Message-Id: <20240530060408.67027-1-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: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" CMRR is a display feature that uses adaptive sync framework to vary Vtotal slightly to match the content rate exactly without frame drops. This feature is a variation of VRR where it varies Vtotal slightly (between additional 0 and 1 Vtotal scanlines) to match content rate exactly without frame drops using the adaptive sync framework. enable this feature by programing new registers for CMRR enable, CMRR_M, CMRR_N, vmin=vmax=flipline.The CMRR_M/CMRR_N ratio represents the fractional part in (actual refresh rate/target refresh rate) * origVTotal. --v6: - CMRR handling in co-existatnce of LRR and DRRS - Correct vtotal paramas accuracy and add 2 digit precision. --v7: - Rebased patches in-accordance to AS SDP merge. - Add neccessary gaurd to prevent crtc_state mismatch during intel_vrr_get_config. -v8: - Add support for AS SDP for CMRR. - update palce holder for CMRR register(Jani). - Make CMRR as subset of FAVT, as per comments in patch#3. -v9: - Add CMRR register definitions to separate intel_vrr_reg.h. - Remove cmrr_enabling/disabling, use vrr.enable instead. - Update AS SDP pack function to accomodate target_rr_divider. - Remove duplicated lines to compute vrr_vsync params. - Set cmrr.enable with a separate patch at last. -v10: - Separate VRR related register definitions. - Add dependency header intel_display_reg_defs.h. - Rename file name to intel_vrr_regs.h instead of reg.h. - Revert removed line. - Since vrr.enable and cmrr.enable are not mutually exclusive, handle accordingly. - is_edp is not required inside is_cmrr_frac_required function. - Add video_mode_required flag for future enhancement. - Correct cmrr_m/cmrr_n calculation. - target_rr_divider is bools so handle accordingly. Mitul Golani (8): drm/i915: Separate VRR related register definitions drm/i915: Define and compute Transcoder CMRR registers drm/i915: Update trans_vrr_ctl flag when cmrr is computed drm/i915: Compute CMRR and calculate vtotal drm/dp: Add refresh rate divider to struct representing AS SDP drm/i915/display: Add support for pack and unpack drm/i915/display: Compute Adaptive sync SDP params drm/i915/display: Compute vrr vsync params drivers/gpu/drm/i915/display/intel_display.c | 24 +++- .../drm/i915/display/intel_display_device.h | 1 + .../drm/i915/display/intel_display_types.h | 6 + drivers/gpu/drm/i915/display/intel_dp.c | 21 ++- drivers/gpu/drm/i915/display/intel_vrr.c | 124 ++++++++++++++-- drivers/gpu/drm/i915/display/intel_vrr_regs.h | 133 ++++++++++++++++++ drivers/gpu/drm/i915/i915_reg.h | 100 ------------- include/drm/display/drm_dp_helper.h | 1 + 8 files changed, 290 insertions(+), 120 deletions(-) create mode 100644 drivers/gpu/drm/i915/display/intel_vrr_regs.h