From patchwork Thu Jul 16 23:28:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Navare, Manasi" X-Patchwork-Id: 11668563 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id AEB5C618 for ; Thu, 16 Jul 2020 23:27:06 +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 94F22208CA for ; Thu, 16 Jul 2020 23:27:06 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 94F22208CA 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 AD2486ED1F; Thu, 16 Jul 2020 23:27:02 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTPS id EB4B66ED1F for ; Thu, 16 Jul 2020 23:27:00 +0000 (UTC) IronPort-SDR: nfZ9F+WoX1faK/Gy154XFpcDsfmR8pxvoIh5qsRk95NQElHpNRUk+AXXtsPcSZ2WBPzTJaPwQy qjV6vxmp3WcQ== X-IronPort-AV: E=McAfee;i="6000,8403,9684"; a="149494642" X-IronPort-AV: E=Sophos;i="5.75,360,1589266800"; d="scan'208";a="149494642" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Jul 2020 16:27:00 -0700 IronPort-SDR: isBqRTAVyuw0rF4pAzIcKx5lZHoBmUg27BgQgbnoRC3vx2sJT/AKu82+oc3usycHS0teP8Qmwz Ng3FFuFliUGA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.75,360,1589266800"; d="scan'208";a="300394182" Received: from labuser-z97x-ud5h.jf.intel.com ([10.165.21.211]) by orsmga002.jf.intel.com with ESMTP; 16 Jul 2020 16:27:00 -0700 From: Manasi Navare To: intel-gfx@lists.freedesktop.org Date: Thu, 16 Jul 2020 16:28:59 -0700 Message-Id: <20200716232900.28414-2-manasi.d.navare@intel.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20200716232900.28414-1-manasi.d.navare@intel.com> References: <20200716232900.28414-1-manasi.d.navare@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 2/2] drm/i915/display/dp: Hacks for testing link training fail errors 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" Keep the link rate const at 2.7 Gpbs, lane count =4 and do not fallback on link training. See if kms_atomic_transition test passes in constant configuration Signed-off-by: Manasi Navare --- drivers/gpu/drm/i915/display/intel_dp.c | 7 +++++-- drivers/gpu/drm/i915/display/intel_dp_link_training.c | 6 +++--- 2 files changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index d6295eb20b63..070d8f83a28a 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -425,6 +425,9 @@ static void intel_dp_set_common_rates(struct intel_dp *intel_dp) intel_dp->common_rates[0] = 162000; intel_dp->num_common_rates = 1; } + /* Hack for VLK-7806 testing */ + intel_dp->common_rates[0] = 270000; + intel_dp->num_common_rates = 1; } static bool intel_dp_link_params_valid(struct intel_dp *intel_dp, int link_rate, @@ -2284,8 +2287,8 @@ intel_dp_compute_link_config(struct intel_encoder *encoder, limits.min_clock = 0; limits.max_clock = common_len - 1; - limits.min_lane_count = 1; - limits.max_lane_count = intel_dp_max_lane_count(intel_dp); + limits.min_lane_count = 4; + limits.max_lane_count = 4;/*intel_dp_max_lane_count(intel_dp);*/ limits.min_bpp = intel_dp_min_bpp(pipe_config); limits.max_bpp = intel_dp_compute_bpp(intel_dp, pipe_config); diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c index f2c8b56be9ea..0653ace2b62a 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c +++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c @@ -415,12 +415,12 @@ intel_dp_start_link_train(struct intel_dp *intel_dp) drm_dbg_kms(&dp_to_i915(intel_dp)->drm, "Link Training failed with HOBL active, not enabling it from now on"); intel_dp->hobl_failed = true; - } else if (intel_dp_get_link_train_fallback_values(intel_dp, + }/* else if (intel_dp_get_link_train_fallback_values(intel_dp, intel_dp->link_rate, intel_dp->lane_count)) { return; - } + }*/ /* Schedule a Hotplug Uevent to userspace to start modeset */ - schedule_work(&intel_connector->modeset_retry_work); + //schedule_work(&intel_connector->modeset_retry_work); }