From patchwork Fri Aug 14 21:34:07 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Zanoni, Paulo R" X-Patchwork-Id: 7019461 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id C9678C05AC for ; Fri, 14 Aug 2015 21:34:38 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id EC60320638 for ; Fri, 14 Aug 2015 21:34:37 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id D72AE20639 for ; Fri, 14 Aug 2015 21:34:36 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 39AE46E3B4; Fri, 14 Aug 2015 14:34:36 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTP id 27C476E6DA for ; Fri, 14 Aug 2015 14:34:35 -0700 (PDT) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga101.jf.intel.com with ESMTP; 14 Aug 2015 14:34:35 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.15,680,1432623600"; d="scan'208";a="783960222" Received: from jamtsfi1-mobl1.amr.corp.intel.com (HELO panetone.amr.corp.intel.com) ([10.254.187.138]) by fmsmga002.fm.intel.com with ESMTP; 14 Aug 2015 14:34:34 -0700 From: Paulo Zanoni To: intel-gfx@lists.freedesktop.org Date: Fri, 14 Aug 2015 18:34:07 -0300 Message-Id: <1439588061-18064-3-git-send-email-paulo.r.zanoni@intel.com> X-Mailer: git-send-email 2.4.6 In-Reply-To: <1439588061-18064-1-git-send-email-paulo.r.zanoni@intel.com> References: <1439588061-18064-1-git-send-email-paulo.r.zanoni@intel.com> Subject: [Intel-gfx] [PATCH 02/16] drm/i915: fix the FBC work allocation failure path 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-Spam-Status: No, score=-5.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Always update the currrent crtc, fb and vertical offset after calling enable_fbc. We were forgetting to do so along the failure paths when enabling fbc synchronously. Fix this with a new helper to enable_fbc() and update the state simultaneously. v2: Improve commit message (Chris). Signed-off-by: Paulo Zanoni Reviewed-by: Ville Syrjälä --- drivers/gpu/drm/i915/intel_fbc.c | 27 +++++++++++++++++---------- 1 file changed, 17 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c index c97aba2..fa9b004 100644 --- a/drivers/gpu/drm/i915/intel_fbc.c +++ b/drivers/gpu/drm/i915/intel_fbc.c @@ -308,6 +308,18 @@ bool intel_fbc_enabled(struct drm_i915_private *dev_priv) return dev_priv->fbc.enabled; } +static void intel_fbc_enable(struct intel_crtc *crtc, + struct drm_framebuffer *fb) +{ + struct drm_i915_private *dev_priv = crtc->base.dev->dev_private; + + dev_priv->fbc.enable_fbc(crtc); + + dev_priv->fbc.crtc = crtc; + dev_priv->fbc.fb_id = fb->base.id; + dev_priv->fbc.y = crtc->base.y; +} + static void intel_fbc_work_fn(struct work_struct *__work) { struct intel_fbc_work *work = @@ -321,13 +333,8 @@ static void intel_fbc_work_fn(struct work_struct *__work) /* Double check that we haven't switched fb without cancelling * the prior work. */ - if (crtc_fb == work->fb) { - dev_priv->fbc.enable_fbc(work->crtc); - - dev_priv->fbc.crtc = work->crtc; - dev_priv->fbc.fb_id = crtc_fb->base.id; - dev_priv->fbc.y = work->crtc->base.y; - } + if (crtc_fb == work->fb) + intel_fbc_enable(work->crtc, work->fb); dev_priv->fbc.fbc_work = NULL; } @@ -361,7 +368,7 @@ static void intel_fbc_cancel_work(struct drm_i915_private *dev_priv) dev_priv->fbc.fbc_work = NULL; } -static void intel_fbc_enable(struct intel_crtc *crtc) +static void intel_fbc_schedule_enable(struct intel_crtc *crtc) { struct intel_fbc_work *work; struct drm_i915_private *dev_priv = crtc->base.dev->dev_private; @@ -373,7 +380,7 @@ static void intel_fbc_enable(struct intel_crtc *crtc) work = kzalloc(sizeof(*work), GFP_KERNEL); if (work == NULL) { DRM_ERROR("Failed to allocate FBC work structure\n"); - dev_priv->fbc.enable_fbc(crtc); + intel_fbc_enable(crtc, crtc->base.primary->fb); return; } @@ -826,7 +833,7 @@ static void __intel_fbc_update(struct drm_i915_private *dev_priv) __intel_fbc_disable(dev_priv); } - intel_fbc_enable(intel_crtc); + intel_fbc_schedule_enable(intel_crtc); dev_priv->fbc.no_fbc_reason = FBC_OK; return;