The previous state is bogus when we've gone into idle. Actually there would be a known state of idle (ie. all units are done), but since it differs for every platform, we can just set 0, and let the hangcheck progress as normal. References: https://bugs.freedesktop.org/show_bug.cgi?id=52429 Tested-by: Guang A Yang <guang.a.yang at intel.com> Signed-off-by: Ben Widawsky <ben at bwidawsk.net> --- drivers/gpu/drm/i915/i915_gem.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 31054fa..5f116a1 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -3624,6 +3624,9 @@ i915_gem_idle(struct drm_device *dev) /* Cancel the retire work handler, which should be idle now. */ cancel_delayed_work_sync(&dev_priv->mm.retire_work); + dev_priv->last_instdone = 0; + dev_priv->last_instdone1 = 0; + return 0; } -- 1.7.11.4
