Linux kernel bug fix: drm/i915: Differentiate between sw write location into ring and last hw read
Subsystem: gpu/i915 (drivers/gpu/drm/i915/i915_guc_submission.c)
Bug type: crash, severity: high
Files changed: drivers/gpu/drm/i915/i915_gem_request.c;drivers/gpu/drm/i915/i915_guc_submission.c;drivers/gpu/drm/i915/intel_lrc.c;drivers/gpu/drm/i915/intel_ringbuffer.c;drivers/gpu/drm/i915/intel_ringbuffer.h
Introduced by Chris Wilson on 2016-09-09 14:23:05 +0100; fixed by Chris Wilson on 2017-04-25 15:33:22 +0100 (lifetime: 228 days)