From patchwork Tue Nov 21 17:35:33 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: 13463429 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 0AB3AC61D85 for ; Tue, 21 Nov 2023 17:41:29 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 47D4F10E545; Tue, 21 Nov 2023 17:41:28 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.9]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3DDDF10E544 for ; Tue, 21 Nov 2023 17:41:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1700588486; x=1732124486; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=+vPati7Sj6C6+eEZusWppYrksH4Xaah44on3liZSyoA=; b=VutJLtbZQtkG7AAuPq+WOJKSg8U0a+ftpM350AQUJoodFDunP7siMssP xBjn36O+hZiYnaj0zBmBExM7LCD9IdfWygRR8IHYrLvtxj7fXtODieCG4 PdjdvLFYYoW8k/9Lz+vJ/rNGcBqTzsT/i1edeVEOkgwe2DJ9ZRSH4fXKe VlJLT1eAiZgmQh6fL/A7xDGBD4GMHlKc6BbgTYuRxoHH05kheOw03i39T qzWrhui5qaKtJIk40sNeUSyb4t9i/s3LpuhtAPqCWLJebiuf/uy3ZJtr5 0jocmpGcwz5WkuKWl2shsaCor2yVMKJPXG4HL/EtvKcYTK2MQBKSU+daL w==; X-IronPort-AV: E=McAfee;i="6600,9927,10901"; a="10559388" X-IronPort-AV: E=Sophos;i="6.04,216,1695711600"; d="scan'208";a="10559388" Received: from orviesa001.jf.intel.com ([10.64.159.141]) by orvoesa101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Nov 2023 09:40:41 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.04,216,1695711600"; d="scan'208";a="14584645" Received: from mgolanimitul-x299-ud4-pro.iind.intel.com ([10.190.239.114]) by orviesa001.jf.intel.com with ESMTP; 21 Nov 2023 09:40:36 -0800 From: Mitul Golani To: intel-gfx@lists.freedesktop.org Date: Tue, 21 Nov 2023 23:05:33 +0530 Message-Id: <20231121173536.4033657-1-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. 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 | 54 +++++++- .../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, 181 insertions(+), 20 deletions(-)