From patchwork Wed Nov 15 13:43:23 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: 13456721 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 59A88C48BF9 for ; Wed, 15 Nov 2023 13:48:44 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D72D610E046; Wed, 15 Nov 2023 13:48:43 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3D52F10E046 for ; Wed, 15 Nov 2023 13:48:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1700056121; x=1731592121; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=0tvKTA9Kbd2WFiB4tzZZOVvQVJWphGKfNNFCGsIngzQ=; b=lEKo+xrEvL5XqvSgnuSBb/ALg8Df5Bf2k84/jUMcthMMSeehhshZ8yjL bcG5CToycJF1cu9oFIhubLsvBWnEPT81c95BrcaItZlegwQJe5tS1yKM5 dyaA/IEGAlhkN980PFH9enC9iS0eg5N/6oj0gy5v/TnBqY2TI7ZW4uVBv h1ypYg/Oo6ErJ+5yG1c05CKJQIusxMqzNn3Mr9XZ3Xw7kP0j41MXw2AVG AY4tC7DpwtoRMJgqIADyzzzI7NwDJDCJ25Qcq9yWJdS3/j4kgb4EPXLKC AwWXO5/eiY0IOY0AezCl0YPQiMq+erjx4sjZcnNEOEvUNTrFQ80CbAw4i A==; X-IronPort-AV: E=McAfee;i="6600,9927,10894"; a="421975269" X-IronPort-AV: E=Sophos;i="6.03,305,1694761200"; d="scan'208";a="421975269" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2023 05:48:40 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.03,305,1694761200"; d="scan'208";a="6170491" Received: from mgolanimitul-x299-ud4-pro.iind.intel.com ([10.190.239.114]) by orviesa002.jf.intel.com with ESMTP; 15 Nov 2023 05:48:39 -0800 From: Mitul Golani To: intel-gfx@lists.freedesktop.org Date: Wed, 15 Nov 2023 19:13:23 +0530 Message-Id: <20231115134326.3794326-1-mitulkumar.ajitkumar.golani@intel.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 0/3] Implement CMRR Support X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jani.nikula@intel.com, ville.syrjala@intel.com Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" 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. Signed-off-by: Mitul Golani Mitul Golani (3): drm/i915: Define and compute Transcoder CMRR registers drm/i915: Add Enable/Disable for CMRR based on VRR state drm/i915: Compute CMRR and calculate vtotal .../drm/i915/display/intel_crtc_state_dump.c | 4 +- drivers/gpu/drm/i915/display/intel_display.c | 51 ++++++- .../drm/i915/display/intel_display_device.h | 1 + .../drm/i915/display/intel_display_types.h | 6 + drivers/gpu/drm/i915/display/intel_vrr.c | 126 ++++++++++++++++-- drivers/gpu/drm/i915/i915_reg.h | 10 ++ 6 files changed, 178 insertions(+), 20 deletions(-)