From patchwork Fri Oct 18 13:18:09 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jakob Bornecrantz X-Patchwork-Id: 3066611 Return-Path: X-Original-To: patchwork-dri-devel@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 822B49F288 for ; Fri, 18 Oct 2013 13:19:17 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 1FCDE204D3 for ; Fri, 18 Oct 2013 13:19:16 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id D462120328 for ; Fri, 18 Oct 2013 13:19:14 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 98592E61E0 for ; Fri, 18 Oct 2013 06:19:14 -0700 (PDT) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from smtp-outbound-2.vmware.com (smtp-outbound-2.vmware.com [208.91.2.13]) by gabe.freedesktop.org (Postfix) with ESMTP id D399AE6028 for ; Fri, 18 Oct 2013 06:18:21 -0700 (PDT) Received: from sc9-mailhost1.vmware.com (sc9-mailhost1.vmware.com [10.113.161.71]) by smtp-outbound-2.vmware.com (Postfix) with ESMTP id C2BEA29D4F; Fri, 18 Oct 2013 06:18:19 -0700 (PDT) Received: from zcs-prod-mta-1.vmware.com (zcs-prod-mta-1.vmware.com [10.113.163.63]) by sc9-mailhost1.vmware.com (Postfix) with ESMTP id BE859180C5; Fri, 18 Oct 2013 06:18:19 -0700 (PDT) Received: from zcs-prod-mta-1 (localhost.localdomain [127.0.0.1]) by zcs-prod-mta-1.vmware.com (Postfix) with ESMTP id A9553E0100; Fri, 18 Oct 2013 06:18:19 -0700 (PDT) Received: from sphere.vmware.com (unknown [10.113.160.14]) by zcs-prod-mta-1.vmware.com (Postfix) with ESMTPSA; Fri, 18 Oct 2013 06:18:17 -0700 (PDT) From: Jakob Bornecrantz To: dri-devel@lists.freedesktop.org Subject: [PATCH] drm/ttm: Handle in memory region copies Date: Fri, 18 Oct 2013 15:18:09 +0200 Message-Id: <1382102289-23664-1-git-send-email-jakob@vmware.com> X-Mailer: git-send-email 1.8.1.2 MIME-Version: 1.0 Cc: Dave Airlie , stable@vger.kernel.org X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces+patchwork-dri-devel=patchwork.kernel.org@lists.freedesktop.org Errors-To: dri-devel-bounces+patchwork-dri-devel=patchwork.kernel.org@lists.freedesktop.org X-Spam-Status: No, score=-4.6 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 Reviewed-by: Thomas Hellström Signed-off-by: Jakob Bornecrantz Cc: Dave Airlie Cc: dri-devel@lists.freedesktop.org Cc: stable@vger.kernel.org --- drivers/gpu/drm/ttm/ttm_bo_util.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c index 8be35c8..037f101 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_util.c +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c @@ -342,7 +342,9 @@ int ttm_bo_move_memcpy(struct ttm_buffer_object *bo, if (old_iomap == NULL && ttm == NULL) goto out2; - if (ttm->state == tt_unpopulated) { + /* TTM might be null for moves within the same region. + */ + if (ttm && ttm->state == tt_unpopulated) { ret = ttm->bdev->driver->ttm_tt_populate(ttm); if (ret) { /* if we fail here don't nuke the mm node