From patchwork Tue Dec 5 18:36:57 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: 13480608 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 C1D4DC4167B for ; Tue, 5 Dec 2023 18:41:51 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id EF6AB10E5E9; Tue, 5 Dec 2023 18:41:50 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTPS id BFB0610E5ED for ; Tue, 5 Dec 2023 18:41:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1701801709; x=1733337709; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=mXdiqVbuNXmLiNR4KU+tn/MnhTb/8cKSFdC5IGxVvw8=; b=V0eDtMzS0/890zrAYPZMrttMDj6g/tKXxjqHoTWvCT7ANFETW2sbimRI cW2kwu8Su7az72Aql53D5eVvRz+2/qZSlqsxvqSeBMJWUDt6UH/c/CD+9 /8Yu3v4L/2j3++j1ITM22JwDFbJIXQBrjG1DpY/1kVQNf1rkrrTrKeYyE XQI6zIxJzerpf0PLxnVhgalAF/fKsGOgPAy85JSqdt+yNkMAzBbkEWkzw Qqjxt1cdDvqamezb1hR/0ZL3maGZD1wLCuBf5Yz1IuG7AAUtInl5kqmxw HygDrG3dIT23wfAFf6sG//kHuJdOsGM/c7+BMo9m2SEQEqX+KqmgNN/fE w==; X-IronPort-AV: E=McAfee;i="6600,9927,10915"; a="397835230" X-IronPort-AV: E=Sophos;i="6.04,253,1695711600"; d="scan'208";a="397835230" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Dec 2023 10:41:49 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10915"; a="1102549368" X-IronPort-AV: E=Sophos;i="6.04,253,1695711600"; d="scan'208";a="1102549368" Received: from mgolanimitul-x299-ud4-pro.iind.intel.com ([10.190.239.114]) by fmsmga005.fm.intel.com with ESMTP; 05 Dec 2023 10:41:47 -0800 From: Mitul Golani To: intel-gfx@lists.freedesktop.org Date: Wed, 6 Dec 2023 00:06:57 +0530 Message-Id: <20231205183700.841096-1-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: , 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. --v6: - CMRR handling in co-existatnce of LRR and DRRS - Correct vtotal paramas accuracy and add 2 digit precision. 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 | 61 +++++++- .../drm/i915/display/intel_display_device.h | 1 + .../drm/i915/display/intel_display_types.h | 6 + drivers/gpu/drm/i915/display/intel_vrr.c | 136 ++++++++++++++++-- drivers/gpu/drm/i915/i915_reg.h | 10 ++ 6 files changed, 197 insertions(+), 21 deletions(-)