25 Apr
2012
25 Apr
'12
9:32 p.m.
On Wed, Apr 25, 2012 at 11:20:36PM +0200, Marcin Slusarz wrote:
Overall idea: Detect lockups by watching for timeouts (vm flush / fence), return -EIOs, handle them at ioctl level, reset the GPU and repeat last ioctl.
GPU reset is done by doing suspend / resume cycle with few tweaks:
- CPU-only bo eviction
- ignoring vm flush / fence timeouts
- shortening waits
Signed-off-by: Marcin Slusarz marcin.slusarz@gmail.com
What changed from v1: - moved ioctl locking from drm core to nouveau - made down_reads interruptible - fixed build bug on 32-bit systems