https://bugs.freedesktop.org/show_bug.cgi?id=31670
--- Comment #3 from Alain Perrot alain.perrot@gmail.com 2010-11-21 07:27:07 PST --- Here it is:
d0f8a854c340986359a3b0a97e380c71def7a440 is the first bad commit commit d0f8a854c340986359a3b0a97e380c71def7a440 Author: Alex Deucher alexdeucher@gmail.com Date: Sat Sep 4 05:04:34 2010 -0400
drm/radeon/kms/r6xx+: use new style fencing (v3)
On r6xx+ a newer fence mechanism was implemented to replace the old wait_until plus scratch regs setup. A single EOP event will flush the destination caches, write a fence value, and generate an interrupt. This is the recommended fence mechanism on r6xx+ asics.
This requires my previous writeback patch.
v2: fix typo that enabled event fence checking on all asics rather than just r6xx+.
v3: properly enable EOP interrupts Should fix: https://bugs.freedesktop.org/show_bug.cgi?id=29972
Signed-off-by: Alex Deucher alexdeucher@gmail.com Signed-off-by: Dave Airlie airlied@redhat.com
:040000 040000 f9980a7432d5daac116586b03587fd90be768be9 ad8ce09ffba05e2438c50ddff1fa6243e1349ccd M drivers