From patchwork Wed Mar 10 22:44:50 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Wilson X-Patchwork-Id: 84706 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by demeter.kernel.org (8.14.3/8.14.3) with ESMTP id o2AMjhrw006231 for ; Wed, 10 Mar 2010 22:46:23 GMT Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id BE4D79E9FE; Wed, 10 Mar 2010 14:45:42 -0800 (PST) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from orsmga101.jf.intel.com (mga06.intel.com [134.134.136.21]) by gabe.freedesktop.org (Postfix) with ESMTP id E92509E7BE for ; Wed, 10 Mar 2010 14:45:36 -0800 (PST) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga101.jf.intel.com with ESMTP; 10 Mar 2010 14:42:14 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.49,616,1262592000"; d="scan'208";a="499618383" Received: from unknown (HELO localhost.localdomain) ([10.255.13.214]) by orsmga002.jf.intel.com with ESMTP; 10 Mar 2010 14:44:52 -0800 From: Chris Wilson To: intel-gfx@lists.freedesktop.org Date: Wed, 10 Mar 2010 22:44:50 +0000 Message-Id: <1268261124-13653-4-git-send-email-chris@chris-wilson.co.uk> X-Mailer: git-send-email 1.7.0 In-Reply-To: <1268261124-13653-1-git-send-email-chris@chris-wilson.co.uk> References: <1268261124-13653-1-git-send-email-chris@chris-wilson.co.uk> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 03/37] drm/i915: Defer acquiring mutex in intel_crtc_page_flip() X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.11 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter.kernel.org [140.211.167.41]); Wed, 10 Mar 2010 22:46:23 +0000 (UTC) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 0e2c5da..979c628 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -4225,8 +4225,6 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, if (work == NULL) return -ENOMEM; - mutex_lock(&dev->struct_mutex); - work->event = event; work->dev = crtc->dev; intel_fb = to_intel_framebuffer(crtc->fb); @@ -4239,7 +4237,6 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); spin_unlock_irqrestore(&dev->event_lock, flags); kfree(work); - mutex_unlock(&dev->struct_mutex); return -EBUSY; } intel_crtc->unpin_work = work; @@ -4248,13 +4245,18 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, intel_fb = to_intel_framebuffer(fb); obj = intel_fb->obj; + mutex_lock(&dev->struct_mutex); ret = intel_pin_and_fence_fb_obj(dev, obj); if (ret != 0) { DRM_DEBUG_DRIVER("flip queue: %p pin & fence failed\n", obj->driver_private); - kfree(work); - intel_crtc->unpin_work = NULL; mutex_unlock(&dev->struct_mutex); + + spin_lock_irqsave(&dev->event_lock, flags); + intel_crtc->unpin_work = NULL; + spin_unlock_irqrestore(&dev->event_lock, flags); + + kfree(work); return ret; }