with the latest commit e202844 I receive this message when I run Xorg server:
(EE) RADEON(0): [dri] RADEONDRIGetVersion failed because of a version mismatch.
[dri] This chipset requires a kernel module version of 1.17.0,
[dri] but the kernel reports a version of 2.12.0.[dri] Make sure your module is loaded prior to starting X, and
[dri] that this driver was built with support for KMS.
I had to downgrade to the commit 615033f.
$> git log e202844...bb0e153 --oneline
e202844 EXA/r6xx+: Only set write domain or read domains, not both. (Bug #43893)
5a7f64c Fix UMS build failure.
87f776b Remove unused local variable 'height'.
f63262e evergreen: Initialize source surface member for textured video.
c8f104d radeon: fix tiling for weird resolution
36c1906 Fix vline range calculations.
with commits from e5a7f64c to c8f104d I had some problem with compiling.
current git requires libdrm 2.4.31 for KMS.
*** Bug 45942 has been marked as a duplicate of this bug. ***