It doesn't work correctly in all cases, see e.g. https://bugs.freedesktop.org/show_bug.cgi?id=95475 . I'm not sure this is fixable, given EXA's architecture.
94fe42f Don't enable DRI3 by default with EXA
man/radeon.man | 5 +++--
src/radeon_kms.c | 2 +-
2 files changed, 4 insertions(+), 3 deletions(-)
Upstream: cgit.freedesktop.org