CE variant requires a different chremap setup.
Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=35472
Signed-off-by: Alex Deucher <alexdeuc...@gmail.com>
Cc: sta...@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
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