[PATCH 1/4] drm/radeon: move ring syncing after bo validation
Mathias.Froehlich at gmx.net
Thu Feb 23 09:05:50 PST 2012
On Thursday, February 23, 2012 15:18:42 Christian König wrote:
> The function radeon_bo_list_validate can cause a
> bo to move, resulting in a different sync_obj
> and a dependency to wait for this move to finish.
> Signed-off-by: Christian König <deathsimple at vodafone.de>
> Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
I am not sure, but to me this looks like this could fix these kind of gpu
lockups that I experience since some time every now and then.
The usual symptom is that I get the
radeon 0000:01:00.0: GPU lockup CP stall for more than 10000msec
GPU lockup (waiting for 0x00682AC3 last fence id 0x00682AC2)
kernel message. Each time with the fence being off by one like in the example
If this change has the potential to fix this issue I think this particular
patch should be considered for the current upstream kernel release.
More information about the dri-devel