From patchwork Fri Oct 29 08:31:18 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matthew Auld X-Patchwork-Id: 12592175 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DE63EC433F5 for ; Fri, 29 Oct 2021 08:33:13 +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 AF77E6115B for ; Fri, 29 Oct 2021 08:33:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org AF77E6115B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7C57A6EA33; Fri, 29 Oct 2021 08:32:42 +0000 (UTC) Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id 83EBD6EA30; Fri, 29 Oct 2021 08:32:39 +0000 (UTC) X-IronPort-AV: E=McAfee;i="6200,9189,10151"; a="210671297" X-IronPort-AV: E=Sophos;i="5.87,192,1631602800"; d="scan'208";a="210671297" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Oct 2021 01:32:39 -0700 X-IronPort-AV: E=Sophos;i="5.87,192,1631602800"; d="scan'208";a="448302275" Received: from hohiggin-mobl2.ger.corp.intel.com (HELO mwauld-desk1.intel.com) ([10.213.197.138]) by orsmga003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Oct 2021 01:32:38 -0700 From: Matthew Auld To: intel-gfx@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org, Maarten Lankhorst Subject: [PATCH v2 10/10] drm/i915: Require object lock when freeing pages during destruction Date: Fri, 29 Oct 2021 09:31:18 +0100 Message-Id: <20211029083118.3386312-10-matthew.auld@intel.com> X-Mailer: git-send-email 2.26.3 In-Reply-To: <20211029083118.3386312-1-matthew.auld@intel.com> References: <20211029083118.3386312-1-matthew.auld@intel.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Maarten Lankhorst TTM already requires this, and we require it for delayed destroy. Signed-off-by: Maarten Lankhorst Reviewed-by: Matthew Auld Signed-off-by: Matthew Auld --- drivers/gpu/drm/i915/gem/i915_gem_object.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object.c b/drivers/gpu/drm/i915/gem/i915_gem_object.c index 55b0f1df3192..6e5412e2b5ad 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_object.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_object.c @@ -257,6 +257,8 @@ static void __i915_gem_object_free_mmaps(struct drm_i915_gem_object *obj) */ void __i915_gem_object_pages_fini(struct drm_i915_gem_object *obj) { + assert_object_held(obj); + if (!list_empty(&obj->vma.list)) { struct i915_vma *vma; @@ -323,7 +325,10 @@ static void __i915_gem_free_objects(struct drm_i915_private *i915, obj->ops->delayed_free(obj); continue; } + + i915_gem_object_lock(obj, NULL); __i915_gem_object_pages_fini(obj); + i915_gem_object_unlock(obj); __i915_gem_free_object(obj); /* But keep the pointer alive for RCU-protected lookups */