Hi Eric, Chris, There are quite a lot of callers of I915_READ/WRITE which aren't holding the dev->struct_mutex lock across device suspend and resume operations, to prevent the GT going to sleep early if two callers are in the gen6_gt_force_wake_get->gen6_gt_force_wake_put critical region.
I started cooking up a patch, but ran out of time. Thanks, Daniel -- Daniel J Blueman _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx