Commits
Dave Airlie committed 8159e509203
drm/radeon: fill in rb backend map on evergreen/ni. This looks to have never gotten filled in, and it seems to trigger a bug in mesa. Reviewed-by: Roland Scheidegger <sroland@vmware.com> Reported-by: Roland Scheidegger <sroland@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>