From patchwork Sat Aug 7 20:45:03 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Wilson X-Patchwork-Id: 118201 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by demeter.kernel.org (8.14.4/8.14.3) with ESMTP id o77Kk7MK026844 for ; Sat, 7 Aug 2010 20:46:42 GMT Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 5FF919E84E for ; Sat, 7 Aug 2010 13:46:07 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from fireflyinternet.com (server109-228-4-14.live-servers.net [109.228.4.14]) by gabe.freedesktop.org (Postfix) with ESMTP id 4923F9E70A for ; Sat, 7 Aug 2010 13:45:56 -0700 (PDT) X-Default-Received-SPF: pass (skip=forwardok (res=PASS)) x-ip-name=78.156.66.37; Received: from arrandale.alporthouse.com (unverified [78.156.66.37]) by fireflyinternet.com (Firefly Internet SMTP) with ESMTP id 2324560-1500048 for multiple; Sat, 07 Aug 2010 21:49:12 +0100 From: Chris Wilson To: intel-gfx@lists.freedesktop.org Date: Sat, 7 Aug 2010 21:45:03 +0100 Message-Id: <1281213903-20409-1-git-send-email-chris@chris-wilson.co.uk> X-Mailer: git-send-email 1.7.1 In-Reply-To: <20100807193439.GA14399@viiv.ffwll.ch> References: <20100807193439.GA14399@viiv.ffwll.ch> X-Originating-IP: 78.156.66.37 Subject: [Intel-gfx] [PATCH] drm/i915: Maintain LRU order of inactive objects upon access by CPU (v2) 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: , MIME-Version: 1.0 Sender: intel-gfx-bounces+patchwork-intel-gfx=patchwork.kernel.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+patchwork-intel-gfx=patchwork.kernel.org@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]); Sat, 07 Aug 2010 20:46:43 +0000 (UTC) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index b5a7b00..8f3e0c1 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -57,6 +57,14 @@ static void i915_gem_free_object_tail(struct drm_gem_object *obj); static LIST_HEAD(shrink_list); static DEFINE_SPINLOCK(shrink_list_lock); +static inline bool +i915_gem_object_is_inactive(struct drm_i915_gem_object *obj_priv) +{ + return obj_priv->gtt_space && + !obj_priv->active && + obj_priv->pin_count == 0; +} + int i915_gem_do_init(struct drm_device *dev, unsigned long start, unsigned long end) { @@ -1036,6 +1044,11 @@ i915_gem_set_domain_ioctl(struct drm_device *dev, void *data, ret = i915_gem_object_set_to_cpu_domain(obj, write_domain != 0); } + + /* Maintain LRU order of "inactive" objects */ + if (ret == 0 && i915_gem_object_is_inactive(obj_priv)) + list_move_tail(&obj_priv->list, &dev_priv->mm.inactive_list); + drm_gem_object_unreference(obj); mutex_unlock(&dev->struct_mutex); return ret; @@ -1137,6 +1150,7 @@ int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf) { struct drm_gem_object *obj = vma->vm_private_data; struct drm_device *dev = obj->dev; + drm_i915_private_t *dev_priv = dev->dev_private; struct drm_i915_gem_object *obj_priv = to_intel_bo(obj); pgoff_t page_offset; unsigned long pfn; @@ -1166,6 +1180,9 @@ int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf) goto unlock; } + if (i915_gem_object_is_inactive(obj_priv)) + list_move_tail(&obj_priv->list, &dev_priv->mm.inactive_list); + pfn = ((dev->agp->base + obj_priv->gtt_offset) >> PAGE_SHIFT) + page_offset;