From patchwork Fri Apr 12 17:31:50 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: 13628201 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 8B68DC4345F for ; Fri, 12 Apr 2024 17:38:08 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id BB90610E00F; Fri, 12 Apr 2024 17:38:07 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="ACJ4tgae"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.17]) by gabe.freedesktop.org (Postfix) with ESMTPS id 2515E10E00F for ; Fri, 12 Apr 2024 17:38:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1712943486; x=1744479486; h=from:to:subject:date:message-id:mime-version: content-transfer-encoding; bh=tKsAUmzj9Kha3GQssJhGZIYEOSarSUiZ4DGxQHFFzUM=; b=ACJ4tgae/FgZPzKIFyG9gomgOlt3EbdJQNIWdpbDFWLmDnkhldCLuCYS 25Z18RYxhfk9AwAhl+6/tcyIityLY831GS1+DqaHv5lK3rr1Tm/CCDKP8 f2q8zKpliSmbH1BUWs+eoMPRRwPmCKM/DazqTWIytR3vrMNz/UupdK/oW brg2wdiVTVU/r2PIieITsStIpRd+yBiVffSvWC/0xzlX9/4I92uFx22sg /amsAO0+ltoVr+OxoUo0FuCMsf6VPJuudY9JEZlwQeQSnk/xL7sEXxh+X zWZDF25j5K5H1io1oiUOfR8WrpLYYkh6sgky1n36kl9Rme+0ARG8JKqVx w==; X-CSE-ConnectionGUID: +5T1eLccRCSf6JinCELbeg== X-CSE-MsgGUID: EHh2Y0FWRMq+1l8zoKw+SQ== X-IronPort-AV: E=McAfee;i="6600,9927,11042"; a="8513848" X-IronPort-AV: E=Sophos;i="6.07,196,1708416000"; d="scan'208";a="8513848" Received: from fmviesa007.fm.intel.com ([10.60.135.147]) by orvoesa109.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Apr 2024 10:38:06 -0700 X-CSE-ConnectionGUID: gjYl/ipWQ8GTFJjGYsu2nw== X-CSE-MsgGUID: jaHqO7bbSMeZkQlCzspkqA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,196,1708416000"; d="scan'208";a="21366069" Received: from mgolanimitul-x299-ud4-pro.iind.intel.com ([10.190.239.114]) by fmviesa007.fm.intel.com with ESMTP; 12 Apr 2024 10:38:05 -0700 From: Mitul Golani To: intel-gfx@lists.freedesktop.org Subject: [PATCH 0/3] Implement CMRR Support Date: Fri, 12 Apr 2024 23:01:50 +0530 Message-Id: <20240412173153.722804-1-mitulkumar.ajitkumar.golani@intel.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 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. --v7: - Rebased patches in-accordance to AS SDP merge. - Add neccessary gaurd to prevent crtc_state mismatch during intel_vrr_get_config. 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 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 | 153 +++++++++++++++--- drivers/gpu/drm/i915/i915_reg.h | 10 ++ 5 files changed, 201 insertions(+), 30 deletions(-)