diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ringbuffer.h')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ringbuffer.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h index b9c15cd40fbf..2c6d3655985e 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.h +++ b/drivers/gpu/drm/i915/intel_ringbuffer.h @@ -144,6 +144,8 @@ struct intel_ring { u32 head; u32 tail; + GEM_BUG_ONLY_DECLARE(u32 advance); + int space; int size; int effective_size; @@ -516,6 +518,7 @@ static inline void intel_ring_advance(struct intel_ring *ring) * reserved for the command packet (i.e. the value passed to * intel_ring_begin()). */ + GEM_BUG_ONLY_ON(ring->tail != ring->advance); } static inline u32 intel_ring_offset(struct intel_ring *ring, void *addr) |