From patchwork Thu Mar 11 15:34:08 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matt Roper X-Patchwork-Id: 12131883 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6B927C433E6 for ; Thu, 11 Mar 2021 15:34:43 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 1265564F46 for ; Thu, 11 Mar 2021 15:34:43 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1265564F46 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0CF786EDEF; Thu, 11 Mar 2021 15:34:33 +0000 (UTC) Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTPS id D50156EDF6 for ; Thu, 11 Mar 2021 15:34:31 +0000 (UTC) IronPort-SDR: TwsgilO3O+Rlgp2t+ILfRVlBtb+eby6VGh7B6dMT5NITjb06Wy9e//2cfM1QSRHIq83ONkPxAH NC7tyoilryMw== X-IronPort-AV: E=McAfee;i="6000,8403,9920"; a="175797250" X-IronPort-AV: E=Sophos;i="5.81,241,1610438400"; d="scan'208";a="175797250" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Mar 2021 07:34:31 -0800 IronPort-SDR: DDs9jnWW2dlZX08byr+5BXzaAdkt/VRSWrx3pXpoxVUSlCvUSjccDuQelwu1yBcL2iAP7EWFxA 5HR15rBIWoOA== X-IronPort-AV: E=Sophos;i="5.81,241,1610438400"; d="scan'208";a="589251685" Received: from mdroper-desk1.fm.intel.com ([10.1.27.168]) by orsmga005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Mar 2021 07:34:31 -0800 From: Matt Roper To: intel-gfx@lists.freedesktop.org Date: Thu, 11 Mar 2021 07:34:08 -0800 Message-Id: <20210311153415.3024607-17-matthew.d.roper@intel.com> X-Mailer: git-send-email 2.25.4 In-Reply-To: <20210311153415.3024607-1-matthew.d.roper@intel.com> References: <20210311153415.3024607-1-matthew.d.roper@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v2 16/23] drm/i915/xelpd: Required bandwidth increases when VT-d is active 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" If VT-d is active, the memory bandwidth usage of the display is 5% higher. Take this into account when determining whether we can support a display configuration. Bspec: 64631 Cc: Matt Atwood Signed-off-by: Matt Roper --- drivers/gpu/drm/i915/display/intel_bw.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c index 20dbc3759d27..23cf9bf31e41 100644 --- a/drivers/gpu/drm/i915/display/intel_bw.c +++ b/drivers/gpu/drm/i915/display/intel_bw.c @@ -344,6 +344,9 @@ static unsigned int intel_bw_data_rate(struct drm_i915_private *dev_priv, for_each_pipe(dev_priv, pipe) data_rate += bw_state->data_rate[pipe]; + if (DISPLAY_VER(dev_priv) >= 13 && intel_vtd_active()) + data_rate = data_rate * 105 / 100; + return data_rate; }