From patchwork Tue Nov 5 17:14:46 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Ville Syrjala X-Patchwork-Id: 11228319 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 71AC91515 for ; Tue, 5 Nov 2019 17:14:52 +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 5A19320663 for ; Tue, 5 Nov 2019 17:14:52 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5A19320663 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.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 BCF256E0D1; Tue, 5 Nov 2019 17:14:51 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id A78F96E0D1 for ; Tue, 5 Nov 2019 17:14:50 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 05 Nov 2019 09:14:50 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.68,271,1569308400"; d="scan'208";a="232543053" Received: from stinkbox.fi.intel.com (HELO stinkbox) ([10.237.72.174]) by fmsmga002.fm.intel.com with SMTP; 05 Nov 2019 09:14:48 -0800 Received: by stinkbox (sSMTP sendmail emulation); Tue, 05 Nov 2019 19:14:47 +0200 From: Ville Syrjala To: intel-gfx@lists.freedesktop.org Date: Tue, 5 Nov 2019 19:14:46 +0200 Message-Id: <20191105171447.22111-1-ville.syrjala@linux.intel.com> X-Mailer: git-send-email 2.23.0 MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 1/2] drm/i915: Frob the correct crtc state in intel_crtc_disable_noatomic() 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: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Ville Syrjälä The uapi vs. hw state split introduced a bug in intel_crtc_disable_noatomic() where it's not frobbing an already freed temp crtc state instead of adjusting the crtc state we are really left with. Fix that by making a cleaner separation beteen the two. This causes explosions on any machine that boots up with pipes already running but not hooked up to any encoder (typical behaviour for gen2-4 VBIOS). Cc: Maarten Lankhorst Fixes: 58d124ea2739 ("drm/i915: Complete crtc hw/uapi split, v6.") Signed-off-by: Ville Syrjälä Reviewed-by: Maarten Lankhorst --- drivers/gpu/drm/i915/display/intel_display.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 876fc25968bf..1f93860fb897 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -7191,11 +7191,13 @@ static void intel_crtc_disable_noatomic(struct drm_crtc *crtc, struct drm_i915_private *dev_priv = to_i915(crtc->dev); struct intel_bw_state *bw_state = to_intel_bw_state(dev_priv->bw_obj.state); + struct intel_crtc_state *crtc_state = + to_intel_crtc_state(crtc->state); enum intel_display_power_domain domain; struct intel_plane *plane; u64 domains; struct drm_atomic_state *state; - struct intel_crtc_state *crtc_state; + struct intel_crtc_state *temp_crtc_state; int ret; if (!intel_crtc->active) @@ -7219,12 +7221,12 @@ static void intel_crtc_disable_noatomic(struct drm_crtc *crtc, state->acquire_ctx = ctx; /* Everything's already locked, -EDEADLK can't happen. */ - crtc_state = intel_atomic_get_crtc_state(state, intel_crtc); + temp_crtc_state = intel_atomic_get_crtc_state(state, intel_crtc); ret = drm_atomic_add_affected_connectors(state, crtc); - WARN_ON(IS_ERR(crtc_state) || ret); + WARN_ON(IS_ERR(temp_crtc_state) || ret); - dev_priv->display.crtc_disable(crtc_state, to_intel_atomic_state(state)); + dev_priv->display.crtc_disable(temp_crtc_state, to_intel_atomic_state(state)); drm_atomic_state_put(state);