From patchwork Fri Sep 14 20:13:09 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Wilson X-Patchwork-Id: 10601191 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id AC8FC14DB for ; Fri, 14 Sep 2018 20:13:26 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 95ED52BD16 for ; Fri, 14 Sep 2018 20:13:26 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 886422BD28; Fri, 14 Sep 2018 20:13:26 +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=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, 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 4C2862BD16 for ; Fri, 14 Sep 2018 20:13:26 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 6B6006E823; Fri, 14 Sep 2018 20:13:23 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from fireflyinternet.com (mail.fireflyinternet.com [109.228.58.192]) by gabe.freedesktop.org (Postfix) with ESMTPS id E79436E08D; Fri, 14 Sep 2018 20:13:20 +0000 (UTC) X-Default-Received-SPF: pass (skip=forwardok (res=PASS)) x-ip-name=78.156.65.138; Received: from haswell.alporthouse.com (unverified [78.156.65.138]) by fireflyinternet.com (Firefly Internet (M1)) with ESMTP id 13774245-1500050 for multiple; Fri, 14 Sep 2018 21:13:07 +0100 From: Chris Wilson To: igt-dev@lists.freedesktop.org Date: Fri, 14 Sep 2018 21:13:09 +0100 Message-Id: <20180914201310.19527-4-chris@chris-wilson.co.uk> X-Mailer: git-send-email 2.19.0 In-Reply-To: <20180914201310.19527-1-chris@chris-wilson.co.uk> References: <20180914201310.19527-1-chris@chris-wilson.co.uk> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH i-g-t 4/5] lib/kms: Skip no-op display updates X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: intel-gfx@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP If the display is disabled (e.g. the driver has disabled the KMS interface) there is nothing to do so avoid failing. Signed-off-by: Chris Wilson --- lib/igt_kms.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/lib/igt_kms.c b/lib/igt_kms.c index 9710bcae1..dedc81344 100644 --- a/lib/igt_kms.c +++ b/lib/igt_kms.c @@ -3271,6 +3271,9 @@ static int do_display_commit(igt_display_t *display, enum pipe pipe; LOG_INDENT(display, "commit"); + if (!display->n_pipes || !display->n_outputs) + return 0; /* nothing to do */ + igt_display_refresh(display); if (s == COMMIT_ATOMIC) { @@ -3321,6 +3324,9 @@ int igt_display_try_commit_atomic(igt_display_t *display, uint32_t flags, void * { int ret; + if (!display->n_pipes || !display->n_outputs) + return 0; /* nothing to do */ + LOG_INDENT(display, "commit"); igt_display_refresh(display);