From patchwork Mon Jun 13 12:39:39 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gerd Hoffmann X-Patchwork-Id: 9172855 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 F2E6D60573 for ; Mon, 13 Jun 2016 12:39:56 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E5DB521C9A for ; Mon, 13 Jun 2016 12:39:56 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DAC91265B9; Mon, 13 Jun 2016 12:39:56 +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=-3.2 required=2.0 tests=BAYES_00,FSL_HELO_HOME, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8193721C9A for ; Mon, 13 Jun 2016 12:39:56 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2DC8E6E58A; Mon, 13 Jun 2016 12:39:55 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by gabe.freedesktop.org (Postfix) with ESMTPS id D9EFB6E58A for ; Mon, 13 Jun 2016 12:39:52 +0000 (UTC) Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 755F17F352; Mon, 13 Jun 2016 12:39:52 +0000 (UTC) Received: from nilsson.home.kraxel.org (ovpn-116-43.ams2.redhat.com [10.36.116.43]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u5DCdpXU018877; Mon, 13 Jun 2016 08:39:52 -0400 Received: by nilsson.home.kraxel.org (Postfix, from userid 500) id 5580D816D1; Mon, 13 Jun 2016 14:39:51 +0200 (CEST) From: Gerd Hoffmann To: dri-devel@lists.freedesktop.org Subject: [RESENT PATCH] bochs: ignore device if there isn't enougth memory Date: Mon, 13 Jun 2016 14:39:39 +0200 Message-Id: <1465821580-21429-1-git-send-email-kraxel@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.26]); Mon, 13 Jun 2016 12:39:52 +0000 (UTC) Cc: Gerd Hoffmann , open list X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP The qemu stdvga can be configured with a wide range of video memory, from 1 MB to 256 MB (default is 16 MB). In case it is configured with only 1 or 2 MB it isn't really usable with bochsdrm, due to depths other than 32bpp not being supported so that isn't enough memory for a reasonable sized framebuffer. So skip the device and let vgacon or vesafb+fbcon handle the it. Signed-off-by: Gerd Hoffmann --- drivers/gpu/drm/bochs/bochs_drv.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/gpu/drm/bochs/bochs_drv.c b/drivers/gpu/drm/bochs/bochs_drv.c index b332b4d3..6cf4b18 100644 --- a/drivers/gpu/drm/bochs/bochs_drv.c +++ b/drivers/gpu/drm/bochs/bochs_drv.c @@ -162,8 +162,15 @@ static int bochs_kick_out_firmware_fb(struct pci_dev *pdev) static int bochs_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { + unsigned long fbsize; int ret; + fbsize = pci_resource_len(pdev, 0); + if (fbsize < 4 * 1024 * 1024) { + DRM_ERROR("less than 4 MB video memory, ignoring device\n"); + return -ENOMEM; + } + ret = bochs_kick_out_firmware_fb(pdev); if (ret) return ret;