| Date | Thu, 07 Jul 2011 17:15:57 -0700 | From | Greg KH <> | Subject | [025/107] drm/radeon/kms: Fix chremap setup on RV770 CE |
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2.6.39-stable review patch. If anyone has any objections, please let us know.
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From: Alex Deucher <alexdeucher@gmail.com>
commit daf54f1f363a61c618662ef66d4bf09d2b090941 upstream.
CE variant requires a different chremap setup.
Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=35472
Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- drivers/gpu/drm/radeon/rv770.c | 6 ++++++ 1 file changed, 6 insertions(+)
--- a/drivers/gpu/drm/radeon/rv770.c +++ b/drivers/gpu/drm/radeon/rv770.c @@ -572,6 +572,12 @@ static void rv770_program_channel_remap( 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); }
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