tree 2876d95b10e9bac71ef168dd998537c731d3222f
parent 45df68035c4964d42ea3850980708ce8674f75b3
author Christian König <deathsimple@vodafone.de> 1341827564 +0200
committer Christian König <deathsimple@vodafone.de> 1342513995 +0200

drm/radeon: implement ring saving on reset v4

Try to save whatever is on the rings when
we encounter an lockup.

v2: Fix spelling error. Free saved ring data if reset fails.
    Add documentation for the new functions.
v3: Some more spelling fixes
v4: It doesn't make sense to save anything if all fences
    are signaled

Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>