From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alex Deucher Subject: [PATCH] drm/radeon/kms: Fix chremap setup on RV770 CE Date: Thu, 30 Jun 2011 08:59:55 -0400 Message-ID: <1309438795-31476-1-git-send-email-alexdeucher@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-qw0-f49.google.com (mail-qw0-f49.google.com [209.85.216.49]) by gabe.freedesktop.org (Postfix) with ESMTP id 66ECF9E7F1 for ; Thu, 30 Jun 2011 06:00:05 -0700 (PDT) Received: by qwi2 with SMTP id 2so1336298qwi.36 for ; Thu, 30 Jun 2011 06:00:04 -0700 (PDT) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org Errors-To: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org To: airlied@gmail.com, dri-devel@lists.freedesktop.org Cc: stable@kernel.org List-Id: dri-devel@lists.freedesktop.org CE variant requires a different chremap setup. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=35472 Signed-off-by: Alex Deucher Cc: stable@kernel.org --- drivers/gpu/drm/radeon/rv770.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c index 6f508ff..8bb347d 100644 --- a/drivers/gpu/drm/radeon/rv770.c +++ b/drivers/gpu/drm/radeon/rv770.c @@ -575,6 +575,12 @@ static void rv770_program_channel_remap(struct radeon_device *rdev) else tcp_chan_steer = 0x00fac688; + /* RV770 CE has special chremap setup */ + if (rdev->pdev->device == 0x944e) { + tcp_chan_steer = 0x00b08b08; + mc_shared_chremap = 0x00b08b08; + } + WREG32(TCP_CHAN_STEER, tcp_chan_steer); WREG32(MC_SHARED_CHREMAP, mc_shared_chremap); } -- 1.7.1.1