From patchwork Thu Dec 15 14:29:44 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maarten Lankhorst X-Patchwork-Id: 9476301 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 70E55607EE for ; Thu, 15 Dec 2016 14:30:16 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5E09D2877D for ; Thu, 15 Dec 2016 14:30:16 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 528A12878C; Thu, 15 Dec 2016 14:30:16 +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 8CEB12877D for ; Thu, 15 Dec 2016 14:30:14 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 967F16E9C5; Thu, 15 Dec 2016 14:30:00 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mblankhorst.nl (mblankhorst.nl [IPv6:2a02:2308::216:3eff:fe92:dfa3]) by gabe.freedesktop.org (Postfix) with ESMTPS id 88BE46E9C4; Thu, 15 Dec 2016 14:29:58 +0000 (UTC) From: Maarten Lankhorst To: dri-devel@lists.freedesktop.org Date: Thu, 15 Dec 2016 15:29:44 +0100 Message-Id: <1481812185-19098-4-git-send-email-maarten.lankhorst@linux.intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1481812185-19098-1-git-send-email-maarten.lankhorst@linux.intel.com> References: <1481812185-19098-1-git-send-email-maarten.lankhorst@linux.intel.com> Cc: intel-gfx@lists.freedesktop.org Subject: [Intel-gfx] [PATCH 3/4] drm/i915: Disable all crtcs during driver unload. 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 We may keep the crtc's enabled when userspace unsets all framebuffers but keeps the crtc active. This exposes a WARN in fbc_global disable, and a lot of bugs in our hardware readout code. Solve this by disabling all crtc's for now. Signed-off-by: Maarten Lankhorst Reviewed-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_drv.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 6428588518aa..bb0d7517b678 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -43,6 +43,7 @@ #include #include +#include #include #include "i915_drv.h" @@ -1282,6 +1283,10 @@ void i915_driver_unload(struct drm_device *dev) intel_display_power_get(dev_priv, POWER_DOMAIN_INIT); + drm_modeset_lock_all(dev); + drm_atomic_helper_disable_all(dev, dev->mode_config.acquire_ctx); + drm_modeset_unlock_all(dev); + i915_driver_unregister(dev_priv); drm_vblank_cleanup(dev);