From patchwork Tue Jul 18 15:15:52 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Kocialkowki X-Patchwork-Id: 9848713 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 6E5A1602A7 for ; Tue, 18 Jul 2017 15:16:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6D56B2013D for ; Tue, 18 Jul 2017 15:16:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6222F24B48; Tue, 18 Jul 2017 15:16:15 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id DF90C200E7 for ; Tue, 18 Jul 2017 15:16:14 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 783676E0EC; Tue, 18 Jul 2017 15:16:14 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by gabe.freedesktop.org (Postfix) with ESMTPS id 2C4216E0EC; Tue, 18 Jul 2017 15:16:13 +0000 (UTC) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga105.fm.intel.com with ESMTP; 18 Jul 2017 08:16:09 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos; i="5.40,378,1496127600"; d="scan'208"; a="1173954106" Received: from linux.intel.com ([10.54.29.200]) by fmsmga001.fm.intel.com with ESMTP; 18 Jul 2017 08:15:59 -0700 Received: from workstation.fi.intel.com (workstation.fi.intel.com [10.237.68.144]) by linux.intel.com (Postfix) with ESMTP id C39FC58037B; Tue, 18 Jul 2017 08:15:55 -0700 (PDT) From: Paul Kocialkowski To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Date: Tue, 18 Jul 2017 18:15:52 +0300 Message-Id: <20170718151553.29593-1-paul.kocialkowski@linux.intel.com> X-Mailer: git-send-email 2.13.2 Cc: Lyude , David Airlie , Daniel Vetter Subject: [Intel-gfx] [PATCH i-g-t 1/2] tests/chamelium: Skip suspend/resume test with unreliable hotplug event X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP It may occur that a hotplug uevent is detected at resume, even though it does not indicate that an actual hotplug happened. This is the case when link training fails on any other connector. There is currently no way to distinguish what connector caused a hotplug uevent, nor what the reason for that uevent really is. This makes it impossible to find out whether the test actually passed or not. To circumvent this problem, the link status of each connector is collected before and after suspend and compared to skip the test if the state was good before and turned to bad after resume. This only concerns the EDID change test, where we cannot check the connector state (that is not supposed to have changed). For actual hotplug tests, the tests should be safe since they check each connector's state after receiving the uevent. The situation described here happens with DP-VGA bridges that fail link training after resume, as they need some more time to response on their AUX channel. Signed-off-by: Paul Kocialkowski --- tests/chamelium.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/tests/chamelium.c b/tests/chamelium.c index e26f0557..8af33aaa 100644 --- a/tests/chamelium.c +++ b/tests/chamelium.c @@ -87,6 +87,31 @@ get_precalculated_crc(struct chamelium_port *port, int w, int h) } static void +get_connectors_link_status_failed(data_t *data, bool *link_status_failed) +{ + drmModeConnector *connector; + uint64_t link_status; + drmModePropertyPtr prop; + int p; + + for (p = 0; p < data->port_count; p++) { + connector = chamelium_port_get_connector(data->chamelium, + data->ports[p], false); + + igt_assert(kmstest_get_property(data->drm_fd, + connector->connector_id, + DRM_MODE_OBJECT_CONNECTOR, + "link-status", NULL, + &link_status, &prop)); + + link_status_failed[p] = link_status == DRM_MODE_LINK_STATUS_BAD; + + drmModeFreeProperty(prop); + drmModeFreeConnector(connector); + } +} + +static void require_connector_present(data_t *data, unsigned int type) { int i; @@ -310,6 +335,8 @@ test_suspend_resume_edid_change(data_t *data, struct chamelium_port *port, int alt_edid_id) { struct udev_monitor *mon = igt_watch_hotplug(); + bool link_status_failed[2][data->port_count]; + int p; reset_state(data, port); @@ -326,8 +353,16 @@ test_suspend_resume_edid_change(data_t *data, struct chamelium_port *port, */ chamelium_port_set_edid(data->chamelium, port, alt_edid_id); + get_connectors_link_status_failed(data, link_status_failed[0]); + igt_system_suspend_autoresume(state, test); + igt_assert(igt_hotplug_detected(mon, HOTPLUG_TIMEOUT)); + + get_connectors_link_status_failed(data, link_status_failed[1]); + + for (p = 0; p < data->port_count; p++) + igt_skip_on(!link_status_failed[0][p] && link_status_failed[1][p]); } static igt_output_t *