Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
Browse files

drm/radeon/kms: Fix chremap setup on RV770 CE

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>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
  • Loading branch information...
commit daf54f1f363a61c618662ef66d4bf09d2b090941 1 parent 0e90ed0
Alex Deucher authored Dave Airlie committed
Showing with 6 additions and 0 deletions.
  1. +6 −0 drivers/gpu/drm/radeon/rv770.c
View
6 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);
}
Please sign in to comment.
Something went wrong with that request. Please try again.