From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751594Ab3HBKR3 (ORCPT ); Fri, 2 Aug 2013 06:17:29 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:37483 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030560Ab3HBKMH (ORCPT ); Fri, 2 Aug 2013 06:12:07 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Alex Deucher Subject: [ 86/99] drm/radeon/atom: initialize more atom interpretor elements to 0 Date: Fri, 2 Aug 2013 18:08:39 +0800 Message-Id: <20130802100237.902832389@linuxfoundation.org> X-Mailer: git-send-email 1.8.3.4.841.g1a3f60e In-Reply-To: <20130802100225.478715166@linuxfoundation.org> References: <20130802100225.478715166@linuxfoundation.org> User-Agent: quilt/0.60-5.1.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Alex Deucher commit 42a21826dc54583cdb79cc8477732e911ac9c376 upstream. The ProcessAuxChannel table on some rv635 boards assumes the divmul members are initialized to 0 otherwise we get an invalid fb offset since it has a bad mask set when setting the fb base. While here initialize all the atom interpretor elements to 0. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=60639 Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/radeon/atom.c | 5 +++++ 1 file changed, 5 insertions(+) --- a/drivers/gpu/drm/radeon/atom.c +++ b/drivers/gpu/drm/radeon/atom.c @@ -1222,12 +1222,17 @@ int atom_execute_table(struct atom_conte int r; mutex_lock(&ctx->mutex); + /* reset data block */ + ctx->data_block = 0; /* reset reg block */ ctx->reg_block = 0; /* reset fb window */ ctx->fb_base = 0; /* reset io mode */ ctx->io_mode = ATOM_IO_MM; + /* reset divmul */ + ctx->divmul[0] = 0; + ctx->divmul[1] = 0; r = atom_execute_table_locked(ctx, index, params); mutex_unlock(&ctx->mutex); return r;