WQ_RING_TAIL_MAX 55 drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h #define WQ_RING_TAIL_MASK (WQ_RING_TAIL_MAX << WQ_RING_TAIL_SHIFT) WQ_RING_TAIL_MAX 434 drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c GEM_BUG_ON(ring_tail > WQ_RING_TAIL_MAX);