From patchwork Tue Jul 1 18:17:45 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ben Widawsky X-Patchwork-Id: 4461191 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 1D2E09F39B for ; Tue, 1 Jul 2014 18:18:45 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 566D82035C for ; Tue, 1 Jul 2014 18:18:44 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 98881202F8 for ; Tue, 1 Jul 2014 18:18:43 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E11A86E1C2; Tue, 1 Jul 2014 11:18:42 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTP id 6B1FA6E1C2 for ; Tue, 1 Jul 2014 11:18:41 -0700 (PDT) Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga102.jf.intel.com with ESMTP; 01 Jul 2014 11:12:40 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.01,583,1400050800"; d="scan'208";a="537317980" Received: from ironside.jf.intel.com ([10.7.197.210]) by orsmga001.jf.intel.com with ESMTP; 01 Jul 2014 11:17:54 -0700 From: Ben Widawsky To: Intel GFX Date: Tue, 1 Jul 2014 11:17:45 -0700 Message-Id: <1404238671-18760-11-git-send-email-benjamin.widawsky@intel.com> X-Mailer: git-send-email 2.0.1 In-Reply-To: <1404238671-18760-1-git-send-email-benjamin.widawsky@intel.com> References: <1404238671-18760-1-git-send-email-benjamin.widawsky@intel.com> Cc: Ben Widawsky , Ben Widawsky Subject: [Intel-gfx] [PATCH 10/16] drm/i915: Add some extra guards in evict_vm X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.15 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=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_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 Signed-off-by: Ben Widawsky --- drivers/gpu/drm/i915/i915_gem_evict.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/i915_gem_evict.c b/drivers/gpu/drm/i915/i915_gem_evict.c index bbf4b12..38297d3 100644 --- a/drivers/gpu/drm/i915/i915_gem_evict.c +++ b/drivers/gpu/drm/i915/i915_gem_evict.c @@ -214,6 +214,7 @@ int i915_gem_evict_vm(struct i915_address_space *vm, bool do_idle) struct i915_vma *vma, *next; int ret; + BUG_ON(!mutex_is_locked(&vm->dev->struct_mutex)); trace_i915_gem_evict_vm(vm); if (do_idle) { @@ -222,11 +223,15 @@ int i915_gem_evict_vm(struct i915_address_space *vm, bool do_idle) return ret; i915_gem_retire_requests(vm->dev); + + WARN_ON(!list_empty(&vm->active_list)); } - list_for_each_entry_safe(vma, next, &vm->inactive_list, mm_list) + list_for_each_entry_safe(vma, next, &vm->inactive_list, mm_list) { + WARN_ON(!i915_is_ggtt(vm) && vma->pin_count); if (vma->pin_count == 0) WARN_ON(i915_vma_unbind(vma)); + } return 0; }