Lines Matching refs:I915_READ_HEAD
556 if (I915_READ_HEAD(ring) != I915_READ_TAIL(ring)) in stop_ring()
570 return (I915_READ_HEAD(ring) & HEAD_ADDR) == 0; in stop_ring()
589 I915_READ_HEAD(ring), in init_ring_common()
598 I915_READ_HEAD(ring), in init_ring_common()
612 I915_READ_HEAD(ring); in init_ring_common()
621 if (I915_READ_HEAD(ring)) in init_ring_common()
623 ring->name, I915_READ_HEAD(ring)); in init_ring_common()
625 (void)I915_READ_HEAD(ring); in init_ring_common()
634 (I915_READ_HEAD(ring) & HEAD_ADDR) == 0, 50)) { in init_ring_common()
639 I915_READ_HEAD(ring), I915_READ_TAIL(ring), in init_ring_common()
646 ringbuf->head = I915_READ_HEAD(ring); in init_ring_common()