From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756521Ab3IKE7N (ORCPT ); Wed, 11 Sep 2013 00:59:13 -0400 Received: from hrndva-omtalb.mail.rr.com ([71.74.56.122]:3257 "EHLO hrndva-omtalb.mail.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754394Ab3IKE5I (ORCPT ); Wed, 11 Sep 2013 00:57:08 -0400 X-Authority-Analysis: v=2.0 cv=V4T/IJbi c=1 sm=0 a=Sro2XwOs0tJUSHxCKfOySw==:17 a=Drc5e87SC40A:10 a=Ciwy3NGCPMMA:10 a=jk-gpCBcZ2IA:10 a=5SG0PmZfjMsA:10 a=bbbx4UPp9XUA:10 a=meVymXHHAAAA:8 a=KGjhK52YXX0A:10 a=jPhU8xnq6hgA:10 a=iox4zFpeAAAA:8 a=VwQbUJbxAAAA:8 a=20KFwNOVAAAA:8 a=QN6lD7u48q-N2EPQO0YA:9 a=n9GBPR9yFnkA:10 a=jEp0ucaQiEUA:10 a=jeBq3FmKZ4MA:10 a=Sro2XwOs0tJUSHxCKfOySw==:117 X-Cloudmark-Score: 0 X-Authenticated-User: X-Originating-IP: 67.255.60.225 Message-Id: <20130911042922.006025966@goodmis.org> User-Agent: quilt/0.60-1 Date: Wed, 11 Sep 2013 00:30:06 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Michal Srb , Dave Airlie Subject: [179/251] drm/cirrus: Invalidate page tables when pinning a BO References: <20130911042707.738353451@goodmis.org> Content-Disposition: inline; filename=0179-drm-cirrus-Invalidate-page-tables-when-pinning-a-BO.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.6.11.9-rc1 stable review patch. If anyone has any objections, please let me know. ------------------ From: Michal Srb [ Upstream commit 109a51598869a39fdcec2d49672a9a39b6d89481 ] This is a cirrus version of Egbert Eich's patch for mgag200. Without bo.bdev->dev_mapping set, the ttm_bo_unmap_virtual_locked called from ttm_bo_handle_move_mem returns with no effect. If any application accessed the memory before it was moved, it will access wrong memory next time. This causes crashes when changing resolution down. Signed-off-by: Michal Srb Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie Signed-off-by: Steven Rostedt --- drivers/gpu/drm/cirrus/cirrus_ttm.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/cirrus/cirrus_ttm.c b/drivers/gpu/drm/cirrus/cirrus_ttm.c index d4b1b1d..d57bcc8 100644 --- a/drivers/gpu/drm/cirrus/cirrus_ttm.c +++ b/drivers/gpu/drm/cirrus/cirrus_ttm.c @@ -353,6 +353,7 @@ int cirrus_bo_create(struct drm_device *dev, int size, int align, cirrusbo->gem.driver_private = NULL; cirrusbo->bo.bdev = &cirrus->ttm.bdev; + cirrusbo->bo.bdev->dev_mapping = dev->dev_mapping; cirrus_ttm_placement(cirrusbo, TTM_PL_FLAG_VRAM | TTM_PL_FLAG_SYSTEM); -- 1.7.10.4